merge opensource jb u5

Change-Id: I1aaec157aa196f3448eff8636134fce89a814cf2

36 files changed, 31007 insertions, 0 deletions

diff --git a/net/bluetooth_tizen/Kconfig b/net/bluetooth_tizen/Kconfig
new file mode 100644
index 0000000..6d17deb
--- /dev/null
+++ b/net/bluetooth_tizen/Kconfig
@@ -0,0 +1,49 @@
+#
+# Bluetooth subsystem configuration
+#
+
+menuconfig BT
+	tristate "Bluetooth subsystem support(Tizen)"
+	depends on NET && !S390
+	depends on RFKILL || !RFKILL
+	select CRC16
+	select CRYPTO
+	select CRYPTO_BLKCIPHER
+	select CRYPTO_AES
+	select CRYPTO_ECB
+	help
+	  Bluetooth is low-cost, low-power, short-range wireless technology.
+	  It was designed as a replacement for cables and other short-range
+	  technologies like IrDA.  Bluetooth operates in personal area range
+	  that typically extends up to 10 meters.  More information about
+	  Bluetooth can be found at <http://www.bluetooth.com/>.
+
+	  Linux Bluetooth subsystem consist of several layers:
+	     Bluetooth Core
+		HCI device and connection manager, scheduler
+		SCO audio links
+		L2CAP (Logical Link Control and Adaptation Protocol)
+		SMP (Security Manager Protocol) on LE (Low Energy) links
+	     HCI Device drivers (Interface to the hardware)
+	     RFCOMM Module (RFCOMM Protocol)
+	     BNEP Module (Bluetooth Network Encapsulation Protocol)
+	     CMTP Module (CAPI Message Transport Protocol)
+	     HIDP Module (Human Interface Device Protocol)
+
+	  Say Y here to compile Bluetooth support into the kernel or say M to
+	  compile it as module (bluetooth).
+
+	  To use Linux Bluetooth subsystem, you will need several user-space
+	  utilities like hciconfig and bluetoothd.  These utilities and updates
+	  to Bluetooth kernel modules are provided in the BlueZ packages.  For
+	  more information, see <http://www.bluez.org/>.
+
+source "net/bluetooth_tizen/rfcomm/Kconfig"
+
+source "net/bluetooth_tizen/bnep/Kconfig"
+
+source "net/bluetooth_tizen/cmtp/Kconfig"
+
+source "net/bluetooth_tizen/hidp/Kconfig"
+
+source "drivers/bluetooth_tizen/Kconfig"
diff --git a/net/bluetooth_tizen/Makefile b/net/bluetooth_tizen/Makefile
new file mode 100644
index 0000000..2dc5a57
--- /dev/null
+++ b/net/bluetooth_tizen/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for the Linux Bluetooth subsystem.
+#
+
+obj-$(CONFIG_BT)	+= bluetooth.o
+obj-$(CONFIG_BT_RFCOMM)	+= rfcomm/
+obj-$(CONFIG_BT_BNEP)	+= bnep/
+obj-$(CONFIG_BT_CMTP)	+= cmtp/
+obj-$(CONFIG_BT_HIDP)	+= hidp/
+
+bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
+	hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o
diff --git a/net/bluetooth_tizen/af_bluetooth.c b/net/bluetooth_tizen/af_bluetooth.c
new file mode 100644
index 0000000..6fb68a9
--- /dev/null
+++ b/net/bluetooth_tizen/af_bluetooth.c
@@ -0,0 +1,616 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth address family and sockets. */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <net/sock.h>
+#include <asm/ioctls.h>
+#include <linux/kmod.h>
+
+#include <net/bluetooth/bluetooth.h>
+
+#define VERSION "2.16"
+
+/* Bluetooth sockets */
+#define BT_MAX_PROTO	8
+static const struct net_proto_family *bt_proto[BT_MAX_PROTO];
+static DEFINE_RWLOCK(bt_proto_lock);
+
+static struct lock_class_key bt_lock_key[BT_MAX_PROTO];
+static const char *const bt_key_strings[BT_MAX_PROTO] = {
+	"sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP",
+	"sk_lock-AF_BLUETOOTH-BTPROTO_HCI",
+	"sk_lock-AF_BLUETOOTH-BTPROTO_SCO",
+	"sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM",
+	"sk_lock-AF_BLUETOOTH-BTPROTO_BNEP",
+	"sk_lock-AF_BLUETOOTH-BTPROTO_CMTP",
+	"sk_lock-AF_BLUETOOTH-BTPROTO_HIDP",
+	"sk_lock-AF_BLUETOOTH-BTPROTO_AVDTP",
+};
+
+static struct lock_class_key bt_slock_key[BT_MAX_PROTO];
+static const char *const bt_slock_key_strings[BT_MAX_PROTO] = {
+	"slock-AF_BLUETOOTH-BTPROTO_L2CAP",
+	"slock-AF_BLUETOOTH-BTPROTO_HCI",
+	"slock-AF_BLUETOOTH-BTPROTO_SCO",
+	"slock-AF_BLUETOOTH-BTPROTO_RFCOMM",
+	"slock-AF_BLUETOOTH-BTPROTO_BNEP",
+	"slock-AF_BLUETOOTH-BTPROTO_CMTP",
+	"slock-AF_BLUETOOTH-BTPROTO_HIDP",
+	"slock-AF_BLUETOOTH-BTPROTO_AVDTP",
+};
+
+void bt_sock_reclassify_lock(struct sock *sk, int proto)
+{
+	BUG_ON(!sk);
+	BUG_ON(sock_owned_by_user(sk));
+
+	sock_lock_init_class_and_name(sk,
+			bt_slock_key_strings[proto], &bt_slock_key[proto],
+				bt_key_strings[proto], &bt_lock_key[proto]);
+}
+EXPORT_SYMBOL(bt_sock_reclassify_lock);
+
+int bt_sock_register(int proto, const struct net_proto_family *ops)
+{
+	int err = 0;
+
+	if (proto < 0 || proto >= BT_MAX_PROTO)
+		return -EINVAL;
+
+	write_lock(&bt_proto_lock);
+
+	if (bt_proto[proto])
+		err = -EEXIST;
+	else
+		bt_proto[proto] = ops;
+
+	write_unlock(&bt_proto_lock);
+
+	return err;
+}
+EXPORT_SYMBOL(bt_sock_register);
+
+int bt_sock_unregister(int proto)
+{
+	int err = 0;
+
+	if (proto < 0 || proto >= BT_MAX_PROTO)
+		return -EINVAL;
+
+	write_lock(&bt_proto_lock);
+
+	if (!bt_proto[proto])
+		err = -ENOENT;
+	else
+		bt_proto[proto] = NULL;
+
+	write_unlock(&bt_proto_lock);
+
+	return err;
+}
+EXPORT_SYMBOL(bt_sock_unregister);
+
+static int bt_sock_create(struct net *net, struct socket *sock, int proto,
+			  int kern)
+{
+	int err;
+
+	if (net != &init_net)
+		return -EAFNOSUPPORT;
+
+	if (proto < 0 || proto >= BT_MAX_PROTO)
+		return -EINVAL;
+
+	if (!bt_proto[proto])
+		request_module("bt-proto-%d", proto);
+
+	err = -EPROTONOSUPPORT;
+
+	read_lock(&bt_proto_lock);
+
+	if (bt_proto[proto] && try_module_get(bt_proto[proto]->owner)) {
+		err = bt_proto[proto]->create(net, sock, proto, kern);
+		if (!err)
+			bt_sock_reclassify_lock(sock->sk, proto);
+		module_put(bt_proto[proto]->owner);
+	}
+
+	read_unlock(&bt_proto_lock);
+
+	return err;
+}
+
+void bt_sock_link(struct bt_sock_list *l, struct sock *sk)
+{
+	write_lock(&l->lock);
+	sk_add_node(sk, &l->head);
+	write_unlock(&l->lock);
+}
+EXPORT_SYMBOL(bt_sock_link);
+
+void bt_sock_unlink(struct bt_sock_list *l, struct sock *sk)
+{
+	write_lock(&l->lock);
+	sk_del_node_init(sk);
+	write_unlock(&l->lock);
+}
+EXPORT_SYMBOL(bt_sock_unlink);
+
+void bt_accept_enqueue(struct sock *parent, struct sock *sk)
+{
+	BT_DBG("parent %p, sk %p", parent, sk);
+
+	sock_hold(sk);
+	list_add_tail(&bt_sk(sk)->accept_q, &bt_sk(parent)->accept_q);
+	bt_sk(sk)->parent = parent;
+	parent->sk_ack_backlog++;
+}
+EXPORT_SYMBOL(bt_accept_enqueue);
+
+void bt_accept_unlink(struct sock *sk)
+{
+	BT_DBG("sk %p state %d", sk, sk->sk_state);
+
+	list_del_init(&bt_sk(sk)->accept_q);
+	bt_sk(sk)->parent->sk_ack_backlog--;
+	bt_sk(sk)->parent = NULL;
+	sock_put(sk);
+}
+EXPORT_SYMBOL(bt_accept_unlink);
+
+struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock)
+{
+	struct list_head *p, *n;
+	struct sock *sk;
+
+	BT_DBG("parent %p", parent);
+
+	list_for_each_safe(p, n, &bt_sk(parent)->accept_q) {
+		sk = (struct sock *) list_entry(p, struct bt_sock, accept_q);
+
+		lock_sock(sk);
+
+		/* FIXME: Is this check still needed */
+		if (sk->sk_state == BT_CLOSED) {
+			release_sock(sk);
+			bt_accept_unlink(sk);
+			continue;
+		}
+
+		if (sk->sk_state == BT_CONNECTED || !newsock ||
+						bt_sk(parent)->defer_setup) {
+			bt_accept_unlink(sk);
+			if (newsock)
+				sock_graft(sk, newsock);
+
+			release_sock(sk);
+			return sk;
+		}
+
+		release_sock(sk);
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL(bt_accept_dequeue);
+
+int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
+				struct msghdr *msg, size_t len, int flags)
+{
+	int noblock = flags & MSG_DONTWAIT;
+	struct sock *sk = sock->sk;
+	struct sk_buff *skb;
+	size_t copied;
+	int err;
+
+	BT_DBG("sock %p sk %p len %zu", sock, sk, len);
+
+	if (flags & (MSG_OOB))
+		return -EOPNOTSUPP;
+
+	skb = skb_recv_datagram(sk, flags, noblock, &err);
+	if (!skb) {
+		if (sk->sk_shutdown & RCV_SHUTDOWN)
+			return 0;
+		return err;
+	}
+
+	msg->msg_namelen = 0;
+
+	copied = skb->len;
+	if (len < copied) {
+		msg->msg_flags |= MSG_TRUNC;
+		copied = len;
+	}
+
+	skb_reset_transport_header(skb);
+	err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+	if (err == 0)
+		sock_recv_ts_and_drops(msg, sk, skb);
+
+	skb_free_datagram(sk, skb);
+
+	return err ? : copied;
+}
+EXPORT_SYMBOL(bt_sock_recvmsg);
+
+static long bt_sock_data_wait(struct sock *sk, long timeo)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue(sk_sleep(sk), &wait);
+	for (;;) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (!skb_queue_empty(&sk->sk_receive_queue))
+			break;
+
+		if (sk->sk_err || (sk->sk_shutdown & RCV_SHUTDOWN))
+			break;
+
+		if (signal_pending(current) || !timeo)
+			break;
+
+		set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
+		release_sock(sk);
+		timeo = schedule_timeout(timeo);
+		lock_sock(sk);
+		clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
+	}
+
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+	return timeo;
+}
+
+int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
+			       struct msghdr *msg, size_t size, int flags)
+{
+	struct sock *sk = sock->sk;
+	int err = 0;
+	size_t target, copied = 0;
+	long timeo;
+
+	if (flags & MSG_OOB)
+		return -EOPNOTSUPP;
+
+	msg->msg_namelen = 0;
+
+	BT_DBG("sk %p size %zu", sk, size);
+
+	lock_sock(sk);
+
+	target = sock_rcvlowat(sk, flags & MSG_WAITALL, size);
+	timeo  = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
+
+	do {
+		struct sk_buff *skb;
+		int chunk;
+
+		skb = skb_dequeue(&sk->sk_receive_queue);
+		if (!skb) {
+			if (copied >= target)
+				break;
+
+			err = sock_error(sk);
+			if (err)
+				break;
+			if (sk->sk_shutdown & RCV_SHUTDOWN)
+				break;
+
+			err = -EAGAIN;
+			if (!timeo)
+				break;
+
+			timeo = bt_sock_data_wait(sk, timeo);
+
+			if (signal_pending(current)) {
+				err = sock_intr_errno(timeo);
+				goto out;
+			}
+			continue;
+		}
+
+		chunk = min_t(unsigned int, skb->len, size);
+		if (skb_copy_datagram_iovec(skb, 0, msg->msg_iov, chunk)) {
+			skb_queue_head(&sk->sk_receive_queue, skb);
+			if (!copied)
+				copied = -EFAULT;
+			break;
+		}
+		copied += chunk;
+		size   -= chunk;
+
+		sock_recv_ts_and_drops(msg, sk, skb);
+
+		if (!(flags & MSG_PEEK)) {
+			int skb_len = skb_headlen(skb);
+
+			if (chunk <= skb_len) {
+				__skb_pull(skb, chunk);
+			} else {
+				struct sk_buff *frag;
+
+				__skb_pull(skb, skb_len);
+				chunk -= skb_len;
+
+				skb_walk_frags(skb, frag) {
+					if (chunk <= frag->len) {
+						/* Pulling partial data */
+						skb->len -= chunk;
+						skb->data_len -= chunk;
+						__skb_pull(frag, chunk);
+						break;
+					} else if (frag->len) {
+						/* Pulling all frag data */
+						chunk -= frag->len;
+						skb->len -= frag->len;
+						skb->data_len -= frag->len;
+						__skb_pull(frag, frag->len);
+					}
+				}
+			}
+
+			if (skb->len) {
+				skb_queue_head(&sk->sk_receive_queue, skb);
+				break;
+			}
+			kfree_skb(skb);
+
+		} else {
+			/* put message back and return */
+			skb_queue_head(&sk->sk_receive_queue, skb);
+			break;
+		}
+	} while (size);
+
+out:
+	release_sock(sk);
+	return copied ? : err;
+}
+EXPORT_SYMBOL(bt_sock_stream_recvmsg);
+
+static inline unsigned int bt_accept_poll(struct sock *parent)
+{
+	struct list_head *p, *n;
+	struct sock *sk;
+
+	list_for_each_safe(p, n, &bt_sk(parent)->accept_q) {
+		sk = (struct sock *) list_entry(p, struct bt_sock, accept_q);
+		if (sk->sk_state == BT_CONNECTED ||
+					(bt_sk(parent)->defer_setup &&
+						sk->sk_state == BT_CONNECT2))
+			return POLLIN | POLLRDNORM;
+	}
+
+	return 0;
+}
+
+unsigned int bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait)
+{
+	struct sock *sk = sock->sk;
+	unsigned int mask = 0;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	poll_wait(file, sk_sleep(sk), wait);
+
+	if (sk->sk_state == BT_LISTEN)
+		return bt_accept_poll(sk);
+
+	if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
+		mask |= POLLERR;
+
+	if (sk->sk_shutdown & RCV_SHUTDOWN)
+		mask |= POLLRDHUP | POLLIN | POLLRDNORM;
+
+	if (sk->sk_shutdown == SHUTDOWN_MASK)
+		mask |= POLLHUP;
+
+	if (!skb_queue_empty(&sk->sk_receive_queue))
+		mask |= POLLIN | POLLRDNORM;
+
+	if (sk->sk_state == BT_CLOSED)
+		mask |= POLLHUP;
+
+	if (sk->sk_state == BT_CONNECT ||
+			sk->sk_state == BT_CONNECT2 ||
+			sk->sk_state == BT_CONFIG)
+		return mask;
+
+	if (!bt_sk(sk)->suspended && sock_writeable(sk))
+		mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
+	else
+		set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+
+	return mask;
+}
+EXPORT_SYMBOL(bt_sock_poll);
+
+int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+	struct sock *sk = sock->sk;
+	struct sk_buff *skb;
+	long amount;
+	int err;
+
+	BT_DBG("sk %p cmd %x arg %lx", sk, cmd, arg);
+
+	switch (cmd) {
+	case TIOCOUTQ:
+		if (sk->sk_state == BT_LISTEN)
+			return -EINVAL;
+
+		amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk);
+		if (amount < 0)
+			amount = 0;
+		err = put_user(amount, (int __user *) arg);
+		break;
+
+	case TIOCINQ:
+		if (sk->sk_state == BT_LISTEN)
+			return -EINVAL;
+
+		lock_sock(sk);
+		skb = skb_peek(&sk->sk_receive_queue);
+		amount = skb ? skb->len : 0;
+		release_sock(sk);
+		err = put_user(amount, (int __user *) arg);
+		break;
+
+	case SIOCGSTAMP:
+		err = sock_get_timestamp(sk, (struct timeval __user *) arg);
+		break;
+
+	case SIOCGSTAMPNS:
+		err = sock_get_timestampns(sk, (struct timespec __user *) arg);
+		break;
+
+	default:
+		err = -ENOIOCTLCMD;
+		break;
+	}
+
+	return err;
+}
+EXPORT_SYMBOL(bt_sock_ioctl);
+
+int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	int err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	add_wait_queue(sk_sleep(sk), &wait);
+	set_current_state(TASK_INTERRUPTIBLE);
+	while (sk->sk_state != state) {
+		if (!timeo) {
+			err = -EINPROGRESS;
+			break;
+		}
+
+		if (signal_pending(current)) {
+			err = sock_intr_errno(timeo);
+			break;
+		}
+
+		release_sock(sk);
+		timeo = schedule_timeout(timeo);
+		lock_sock(sk);
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		err = sock_error(sk);
+		if (err)
+			break;
+	}
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+	return err;
+}
+EXPORT_SYMBOL(bt_sock_wait_state);
+
+static struct net_proto_family bt_sock_family_ops = {
+	.owner	= THIS_MODULE,
+	.family	= PF_BLUETOOTH,
+	.create	= bt_sock_create,
+};
+
+static int __init bt_init(void)
+{
+	int err;
+
+	BT_INFO("Core ver %s", VERSION);
+
+	err = bt_sysfs_init();
+	if (err < 0)
+		return err;
+
+	err = sock_register(&bt_sock_family_ops);
+	if (err < 0) {
+		bt_sysfs_cleanup();
+		return err;
+	}
+
+	BT_INFO("HCI device and connection manager initialized");
+
+	err = hci_sock_init();
+	if (err < 0)
+		goto error;
+
+	err = l2cap_init();
+	if (err < 0)
+		goto sock_err;
+
+	err = sco_init();
+	if (err < 0) {
+		l2cap_exit();
+		goto sock_err;
+	}
+
+	return 0;
+
+sock_err:
+	hci_sock_cleanup();
+
+error:
+	sock_unregister(PF_BLUETOOTH);
+	bt_sysfs_cleanup();
+
+	return err;
+}
+
+static void __exit bt_exit(void)
+{
+
+	sco_exit();
+
+	l2cap_exit();
+
+	hci_sock_cleanup();
+
+	sock_unregister(PF_BLUETOOTH);
+
+	bt_sysfs_cleanup();
+}
+
+subsys_initcall(bt_init);
+module_exit(bt_exit);
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth Core ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETPROTO(PF_BLUETOOTH);
diff --git a/net/bluetooth_tizen/bnep/Kconfig b/net/bluetooth_tizen/bnep/Kconfig
new file mode 100644
index 0000000..71791fc
--- /dev/null
+++ b/net/bluetooth_tizen/bnep/Kconfig
@@ -0,0 +1,24 @@
+config BT_BNEP
+	tristate "BNEP protocol support"
+	depends on BT
+	select CRC32
+	help
+	  BNEP (Bluetooth Network Encapsulation Protocol) is Ethernet
+	  emulation layer on top of Bluetooth.  BNEP is required for
+	  Bluetooth PAN (Personal Area Network).
+
+	  Say Y here to compile BNEP support into the kernel or say M to
+	  compile it as module (bnep).
+
+config BT_BNEP_MC_FILTER
+	bool "Multicast filter support"
+	depends on BT_BNEP
+	help
+	  This option enables the multicast filter support for BNEP.
+
+config BT_BNEP_PROTO_FILTER
+	bool "Protocol filter support"
+	depends on BT_BNEP
+	help
+	  This option enables the protocol filter support for BNEP.
+
diff --git a/net/bluetooth_tizen/bnep/Makefile b/net/bluetooth_tizen/bnep/Makefile
new file mode 100644
index 0000000..c7821e7
--- /dev/null
+++ b/net/bluetooth_tizen/bnep/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the Linux Bluetooth BNEP layer.
+#
+
+obj-$(CONFIG_BT_BNEP) += bnep.o
+
+bnep-objs := core.o sock.o netdev.o
diff --git a/net/bluetooth_tizen/bnep/bnep.h b/net/bluetooth_tizen/bnep/bnep.h
new file mode 100644
index 0000000..e7ee531
--- /dev/null
+++ b/net/bluetooth_tizen/bnep/bnep.h
@@ -0,0 +1,180 @@
+/*
+  BNEP protocol definition for Linux Bluetooth stack (BlueZ).
+  Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License, version 2, as
+  published by the Free Software Foundation.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+*/
+
+#ifndef _BNEP_H
+#define _BNEP_H
+
+#include <linux/types.h>
+#include <linux/crc32.h>
+#include <net/bluetooth/bluetooth.h>
+
+/* Limits */
+#define BNEP_MAX_PROTO_FILTERS		5
+#define BNEP_MAX_MULTICAST_FILTERS	20
+
+/* UUIDs */
+#define BNEP_BASE_UUID	0x0000000000001000800000805F9B34FB
+#define BNEP_UUID16	0x02
+#define BNEP_UUID32	0x04
+#define BNEP_UUID128	0x16
+
+#define BNEP_SVC_PANU	0x1115
+#define BNEP_SVC_NAP	0x1116
+#define BNEP_SVC_GN	0x1117
+
+/* Packet types */
+#define BNEP_GENERAL			0x00
+#define BNEP_CONTROL			0x01
+#define BNEP_COMPRESSED			0x02
+#define BNEP_COMPRESSED_SRC_ONLY	0x03
+#define BNEP_COMPRESSED_DST_ONLY	0x04
+
+/* Control types */
+#define BNEP_CMD_NOT_UNDERSTOOD		0x00
+#define BNEP_SETUP_CONN_REQ		0x01
+#define BNEP_SETUP_CONN_RSP		0x02
+#define BNEP_FILTER_NET_TYPE_SET	0x03
+#define BNEP_FILTER_NET_TYPE_RSP	0x04
+#define BNEP_FILTER_MULTI_ADDR_SET	0x05
+#define BNEP_FILTER_MULTI_ADDR_RSP	0x06
+
+/* Extension types */
+#define BNEP_EXT_CONTROL 0x00
+
+/* Response messages */
+#define BNEP_SUCCESS 0x00
+
+#define BNEP_CONN_INVALID_DST 0x01
+#define BNEP_CONN_INVALID_SRC 0x02
+#define BNEP_CONN_INVALID_SVC 0x03
+#define BNEP_CONN_NOT_ALLOWED 0x04
+
+#define BNEP_FILTER_UNSUPPORTED_REQ	0x01
+#define BNEP_FILTER_INVALID_RANGE	0x02
+#define BNEP_FILTER_INVALID_MCADDR	0x02
+#define BNEP_FILTER_LIMIT_REACHED	0x03
+#define BNEP_FILTER_DENIED_SECURITY	0x04
+
+/* L2CAP settings */
+#define BNEP_MTU	1691
+#define BNEP_PSM	0x0f
+#define BNEP_FLUSH_TO	0xffff
+#define BNEP_CONNECT_TO	15
+#define BNEP_FILTER_TO	15
+
+/* Headers */
+#define BNEP_TYPE_MASK	0x7f
+#define BNEP_EXT_HEADER	0x80
+
+struct bnep_setup_conn_req {
+	__u8 type;
+	__u8 ctrl;
+	__u8 uuid_size;
+	__u8 service[0];
+} __packed;
+
+struct bnep_set_filter_req {
+	__u8 type;
+	__u8 ctrl;
+	__be16 len;
+	__u8 list[0];
+} __packed;
+
+struct bnep_control_rsp {
+	__u8 type;
+	__u8 ctrl;
+	__be16 resp;
+} __packed;
+
+struct bnep_ext_hdr {
+	__u8 type;
+	__u8 len;
+	__u8 data[0];
+} __packed;
+
+/* BNEP ioctl defines */
+#define BNEPCONNADD	_IOW('B', 200, int)
+#define BNEPCONNDEL	_IOW('B', 201, int)
+#define BNEPGETCONNLIST	_IOR('B', 210, int)
+#define BNEPGETCONNINFO	_IOR('B', 211, int)
+
+struct bnep_connadd_req {
+	int   sock;		/* Connected socket */
+	__u32 flags;
+	__u16 role;
+	char  device[16];	/* Name of the Ethernet device */
+};
+
+struct bnep_conndel_req {
+	__u32 flags;
+	__u8  dst[ETH_ALEN];
+};
+
+struct bnep_conninfo {
+	__u32 flags;
+	__u16 role;
+	__u16 state;
+	__u8  dst[ETH_ALEN];
+	char  device[16];
+};
+
+struct bnep_connlist_req {
+	__u32  cnum;
+	struct bnep_conninfo __user *ci;
+};
+
+struct bnep_proto_filter {
+	__u16 start;
+	__u16 end;
+};
+
+int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock);
+int bnep_del_connection(struct bnep_conndel_req *req);
+int bnep_get_connlist(struct bnep_connlist_req *req);
+int bnep_get_conninfo(struct bnep_conninfo *ci);
+
+/* BNEP sessions */
+struct bnep_session {
+	struct list_head list;
+
+	unsigned int  role;
+	unsigned long state;
+	unsigned long flags;
+	atomic_t      terminate;
+	struct task_struct *task;
+
+	struct ethhdr eh;
+	struct msghdr msg;
+
+	struct bnep_proto_filter proto_filter[BNEP_MAX_PROTO_FILTERS];
+	unsigned long long mc_filter;
+
+	struct socket    *sock;
+	struct net_device *dev;
+};
+
+void bnep_net_setup(struct net_device *dev);
+int bnep_sock_init(void);
+void bnep_sock_cleanup(void);
+
+static inline int bnep_mc_hash(__u8 *addr)
+{
+	return crc32_be(~0, addr, ETH_ALEN) >> 26;
+}
+
+#endif
diff --git a/net/bluetooth_tizen/bnep/core.c b/net/bluetooth_tizen/bnep/core.c
new file mode 100644
index 0000000..a779ec7
--- /dev/null
+++ b/net/bluetooth_tizen/bnep/core.c
@@ -0,0 +1,747 @@
+/*
+   BNEP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2001-2002 Inventel Systemes
+   Written 2001-2002 by
+	Clément Moreau <clement.moreau@inventel.fr>
+	David Libault  <david.libault@inventel.fr>
+
+   Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/init.h>
+#include <linux/wait.h>
+#include <linux/freezer.h>
+#include <linux/errno.h>
+#include <linux/net.h>
+#include <linux/slab.h>
+#include <linux/kthread.h>
+#include <net/sock.h>
+
+#include <linux/socket.h>
+#include <linux/file.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+
+#include "bnep.h"
+
+#define VERSION "1.3"
+
+static bool compress_src = true;
+static bool compress_dst = true;
+
+static LIST_HEAD(bnep_session_list);
+static DECLARE_RWSEM(bnep_session_sem);
+
+static struct bnep_session *__bnep_get_session(u8 *dst)
+{
+	struct bnep_session *s;
+
+	BT_DBG("");
+
+	list_for_each_entry(s, &bnep_session_list, list)
+		if (!compare_ether_addr(dst, s->eh.h_source))
+			return s;
+
+	return NULL;
+}
+
+static void __bnep_link_session(struct bnep_session *s)
+{
+	list_add(&s->list, &bnep_session_list);
+}
+
+static void __bnep_unlink_session(struct bnep_session *s)
+{
+	list_del(&s->list);
+}
+
+static int bnep_send(struct bnep_session *s, void *data, size_t len)
+{
+	struct socket *sock = s->sock;
+	struct kvec iv = { data, len };
+
+	return kernel_sendmsg(sock, &s->msg, &iv, 1, len);
+}
+
+static int bnep_send_rsp(struct bnep_session *s, u8 ctrl, u16 resp)
+{
+	struct bnep_control_rsp rsp;
+	rsp.type = BNEP_CONTROL;
+	rsp.ctrl = ctrl;
+	rsp.resp = htons(resp);
+	return bnep_send(s, &rsp, sizeof(rsp));
+}
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+static inline void bnep_set_default_proto_filter(struct bnep_session *s)
+{
+	/* (IPv4, ARP)  */
+	s->proto_filter[0].start = ETH_P_IP;
+	s->proto_filter[0].end   = ETH_P_ARP;
+	/* (RARP, AppleTalk) */
+	s->proto_filter[1].start = ETH_P_RARP;
+	s->proto_filter[1].end   = ETH_P_AARP;
+	/* (IPX, IPv6) */
+	s->proto_filter[2].start = ETH_P_IPX;
+	s->proto_filter[2].end   = ETH_P_IPV6;
+}
+#endif
+
+static int bnep_ctrl_set_netfilter(struct bnep_session *s, __be16 *data, int len)
+{
+	int n;
+
+	if (len < 2)
+		return -EILSEQ;
+
+	n = get_unaligned_be16(data);
+	data++;
+	len -= 2;
+
+	if (len < n)
+		return -EILSEQ;
+
+	BT_DBG("filter len %d", n);
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+	n /= 4;
+	if (n <= BNEP_MAX_PROTO_FILTERS) {
+		struct bnep_proto_filter *f = s->proto_filter;
+		int i;
+
+		for (i = 0; i < n; i++) {
+			f[i].start = get_unaligned_be16(data++);
+			f[i].end   = get_unaligned_be16(data++);
+
+			BT_DBG("proto filter start %d end %d",
+				f[i].start, f[i].end);
+		}
+
+		if (i < BNEP_MAX_PROTO_FILTERS)
+			memset(f + i, 0, sizeof(*f));
+
+		if (n == 0)
+			bnep_set_default_proto_filter(s);
+
+		bnep_send_rsp(s, BNEP_FILTER_NET_TYPE_RSP, BNEP_SUCCESS);
+	} else {
+		bnep_send_rsp(s, BNEP_FILTER_NET_TYPE_RSP, BNEP_FILTER_LIMIT_REACHED);
+	}
+#else
+	bnep_send_rsp(s, BNEP_FILTER_NET_TYPE_RSP, BNEP_FILTER_UNSUPPORTED_REQ);
+#endif
+	return 0;
+}
+
+static int bnep_ctrl_set_mcfilter(struct bnep_session *s, u8 *data, int len)
+{
+	int n;
+
+	if (len < 2)
+		return -EILSEQ;
+
+	n = get_unaligned_be16(data);
+	data += 2;
+	len -= 2;
+
+	if (len < n)
+		return -EILSEQ;
+
+	BT_DBG("filter len %d", n);
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+	n /= (ETH_ALEN * 2);
+
+	if (n > 0) {
+		int i;
+
+		s->mc_filter = 0;
+
+		/* Always send broadcast */
+		set_bit(bnep_mc_hash(s->dev->broadcast), (ulong *) &s->mc_filter);
+
+		/* Add address ranges to the multicast hash */
+		for (; n > 0; n--) {
+			u8 a1[6], *a2;
+
+			memcpy(a1, data, ETH_ALEN);
+			data += ETH_ALEN;
+			a2 = data;
+			data += ETH_ALEN;
+
+			BT_DBG("mc filter %s -> %s",
+				batostr((void *) a1), batostr((void *) a2));
+
+			/* Iterate from a1 to a2 */
+			set_bit(bnep_mc_hash(a1), (ulong *) &s->mc_filter);
+			while (memcmp(a1, a2, 6) < 0 && s->mc_filter != ~0LL) {
+				/* Increment a1 */
+				i = 5;
+				while (i >= 0 && ++a1[i--] == 0)
+					;
+
+				set_bit(bnep_mc_hash(a1), (ulong *) &s->mc_filter);
+			}
+		}
+	}
+
+	BT_DBG("mc filter hash 0x%llx", s->mc_filter);
+
+	bnep_send_rsp(s, BNEP_FILTER_MULTI_ADDR_RSP, BNEP_SUCCESS);
+#else
+	bnep_send_rsp(s, BNEP_FILTER_MULTI_ADDR_RSP, BNEP_FILTER_UNSUPPORTED_REQ);
+#endif
+	return 0;
+}
+
+static int bnep_rx_control(struct bnep_session *s, void *data, int len)
+{
+	u8  cmd = *(u8 *)data;
+	int err = 0;
+
+	data++;
+	len--;
+
+	switch (cmd) {
+	case BNEP_CMD_NOT_UNDERSTOOD:
+	case BNEP_SETUP_CONN_RSP:
+	case BNEP_FILTER_NET_TYPE_RSP:
+	case BNEP_FILTER_MULTI_ADDR_RSP:
+		/* Ignore these for now */
+		break;
+
+	case BNEP_FILTER_NET_TYPE_SET:
+		err = bnep_ctrl_set_netfilter(s, data, len);
+		break;
+
+	case BNEP_FILTER_MULTI_ADDR_SET:
+		err = bnep_ctrl_set_mcfilter(s, data, len);
+		break;
+
+	case BNEP_SETUP_CONN_REQ:
+		err = bnep_send_rsp(s, BNEP_SETUP_CONN_RSP, BNEP_CONN_NOT_ALLOWED);
+		break;
+
+	default: {
+			u8 pkt[3];
+			pkt[0] = BNEP_CONTROL;
+			pkt[1] = BNEP_CMD_NOT_UNDERSTOOD;
+			pkt[2] = cmd;
+			bnep_send(s, pkt, sizeof(pkt));
+		}
+		break;
+	}
+
+	return err;
+}
+
+static int bnep_rx_extension(struct bnep_session *s, struct sk_buff *skb)
+{
+	struct bnep_ext_hdr *h;
+	int err = 0;
+
+	do {
+		h = (void *) skb->data;
+		if (!skb_pull(skb, sizeof(*h))) {
+			err = -EILSEQ;
+			break;
+		}
+
+		BT_DBG("type 0x%x len %d", h->type, h->len);
+
+		switch (h->type & BNEP_TYPE_MASK) {
+		case BNEP_EXT_CONTROL:
+			bnep_rx_control(s, skb->data, skb->len);
+			break;
+
+		default:
+			/* Unknown extension, skip it. */
+			break;
+		}
+
+		if (!skb_pull(skb, h->len)) {
+			err = -EILSEQ;
+			break;
+		}
+	} while (!err && (h->type & BNEP_EXT_HEADER));
+
+	return err;
+}
+
+static u8 __bnep_rx_hlen[] = {
+	ETH_HLEN,     /* BNEP_GENERAL */
+	0,            /* BNEP_CONTROL */
+	2,            /* BNEP_COMPRESSED */
+	ETH_ALEN + 2, /* BNEP_COMPRESSED_SRC_ONLY */
+	ETH_ALEN + 2  /* BNEP_COMPRESSED_DST_ONLY */
+};
+
+static inline int bnep_rx_frame(struct bnep_session *s, struct sk_buff *skb)
+{
+	struct net_device *dev = s->dev;
+	struct sk_buff *nskb;
+	u8 type;
+
+	dev->stats.rx_bytes += skb->len;
+
+	type = *(u8 *) skb->data;
+	skb_pull(skb, 1);
+
+	if ((type & BNEP_TYPE_MASK) >= sizeof(__bnep_rx_hlen))
+		goto badframe;
+
+	if ((type & BNEP_TYPE_MASK) == BNEP_CONTROL) {
+		bnep_rx_control(s, skb->data, skb->len);
+		kfree_skb(skb);
+		return 0;
+	}
+
+	skb_reset_mac_header(skb);
+
+	/* Verify and pull out header */
+	if (!skb_pull(skb, __bnep_rx_hlen[type & BNEP_TYPE_MASK]))
+		goto badframe;
+
+	s->eh.h_proto = get_unaligned((__be16 *) (skb->data - 2));
+
+	if (type & BNEP_EXT_HEADER) {
+		if (bnep_rx_extension(s, skb) < 0)
+			goto badframe;
+	}
+
+	/* Strip 802.1p header */
+	if (ntohs(s->eh.h_proto) == 0x8100) {
+		if (!skb_pull(skb, 4))
+			goto badframe;
+		s->eh.h_proto = get_unaligned((__be16 *) (skb->data - 2));
+	}
+
+	/* We have to alloc new skb and copy data here :(. Because original skb
+	 * may not be modified and because of the alignment requirements. */
+	nskb = alloc_skb(2 + ETH_HLEN + skb->len, GFP_KERNEL);
+	if (!nskb) {
+		dev->stats.rx_dropped++;
+		kfree_skb(skb);
+		return -ENOMEM;
+	}
+	skb_reserve(nskb, 2);
+
+	/* Decompress header and construct ether frame */
+	switch (type & BNEP_TYPE_MASK) {
+	case BNEP_COMPRESSED:
+		memcpy(__skb_put(nskb, ETH_HLEN), &s->eh, ETH_HLEN);
+		break;
+
+	case BNEP_COMPRESSED_SRC_ONLY:
+		memcpy(__skb_put(nskb, ETH_ALEN), s->eh.h_dest, ETH_ALEN);
+		memcpy(__skb_put(nskb, ETH_ALEN), skb_mac_header(skb), ETH_ALEN);
+		put_unaligned(s->eh.h_proto, (__be16 *) __skb_put(nskb, 2));
+		break;
+
+	case BNEP_COMPRESSED_DST_ONLY:
+		memcpy(__skb_put(nskb, ETH_ALEN), skb_mac_header(skb),
+								ETH_ALEN);
+		memcpy(__skb_put(nskb, ETH_ALEN + 2), s->eh.h_source,
+								ETH_ALEN + 2);
+		break;
+
+	case BNEP_GENERAL:
+		memcpy(__skb_put(nskb, ETH_ALEN * 2), skb_mac_header(skb),
+								ETH_ALEN * 2);
+		put_unaligned(s->eh.h_proto, (__be16 *) __skb_put(nskb, 2));
+		break;
+	}
+
+	skb_copy_from_linear_data(skb, __skb_put(nskb, skb->len), skb->len);
+	kfree_skb(skb);
+
+	dev->stats.rx_packets++;
+	nskb->ip_summed = CHECKSUM_NONE;
+	nskb->protocol  = eth_type_trans(nskb, dev);
+	netif_rx_ni(nskb);
+	return 0;
+
+badframe:
+	dev->stats.rx_errors++;
+	kfree_skb(skb);
+	return 0;
+}
+
+static u8 __bnep_tx_types[] = {
+	BNEP_GENERAL,
+	BNEP_COMPRESSED_SRC_ONLY,
+	BNEP_COMPRESSED_DST_ONLY,
+	BNEP_COMPRESSED
+};
+
+static inline int bnep_tx_frame(struct bnep_session *s, struct sk_buff *skb)
+{
+	struct ethhdr *eh = (void *) skb->data;
+	struct socket *sock = s->sock;
+	struct kvec iv[3];
+	int len = 0, il = 0;
+	u8 type = 0;
+
+	BT_DBG("skb %p dev %p type %d", skb, skb->dev, skb->pkt_type);
+
+	if (!skb->dev) {
+		/* Control frame sent by us */
+		goto send;
+	}
+
+	iv[il++] = (struct kvec) { &type, 1 };
+	len++;
+
+	if (compress_src && !compare_ether_addr(eh->h_dest, s->eh.h_source))
+		type |= 0x01;
+
+	if (compress_dst && !compare_ether_addr(eh->h_source, s->eh.h_dest))
+		type |= 0x02;
+
+	if (type)
+		skb_pull(skb, ETH_ALEN * 2);
+
+	type = __bnep_tx_types[type];
+	switch (type) {
+	case BNEP_COMPRESSED_SRC_ONLY:
+		iv[il++] = (struct kvec) { eh->h_source, ETH_ALEN };
+		len += ETH_ALEN;
+		break;
+
+	case BNEP_COMPRESSED_DST_ONLY:
+		iv[il++] = (struct kvec) { eh->h_dest, ETH_ALEN };
+		len += ETH_ALEN;
+		break;
+	}
+
+send:
+	iv[il++] = (struct kvec) { skb->data, skb->len };
+	len += skb->len;
+
+	/* FIXME: linearize skb */
+	{
+		len = kernel_sendmsg(sock, &s->msg, iv, il, len);
+	}
+	kfree_skb(skb);
+
+	if (len > 0) {
+		s->dev->stats.tx_bytes += len;
+		s->dev->stats.tx_packets++;
+		return 0;
+	}
+
+	return len;
+}
+
+static int bnep_session(void *arg)
+{
+	struct bnep_session *s = arg;
+	struct net_device *dev = s->dev;
+	struct sock *sk = s->sock->sk;
+	struct sk_buff *skb;
+	wait_queue_t wait;
+
+	BT_DBG("");
+
+	set_user_nice(current, -15);
+
+	init_waitqueue_entry(&wait, current);
+	add_wait_queue(sk_sleep(sk), &wait);
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (atomic_read(&s->terminate))
+			break;
+		/* RX */
+		while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
+			skb_orphan(skb);
+			if (!skb_linearize(skb))
+				bnep_rx_frame(s, skb);
+			else
+				kfree_skb(skb);
+		}
+
+		if (sk->sk_state != BT_CONNECTED)
+			break;
+
+		/* TX */
+		while ((skb = skb_dequeue(&sk->sk_write_queue)))
+			if (bnep_tx_frame(s, skb))
+				break;
+		netif_wake_queue(dev);
+
+		schedule();
+	}
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+
+	/* Cleanup session */
+	down_write(&bnep_session_sem);
+
+	/* Delete network device */
+	unregister_netdev(dev);
+
+	/* Wakeup user-space polling for socket errors */
+	s->sock->sk->sk_err = EUNATCH;
+
+	wake_up_interruptible(sk_sleep(s->sock->sk));
+
+	/* Release the socket */
+	fput(s->sock->file);
+
+	__bnep_unlink_session(s);
+
+	up_write(&bnep_session_sem);
+	free_netdev(dev);
+	module_put_and_exit(0);
+	return 0;
+}
+
+static struct device *bnep_get_device(struct bnep_session *session)
+{
+	bdaddr_t *src = &bt_sk(session->sock->sk)->src;
+	bdaddr_t *dst = &bt_sk(session->sock->sk)->dst;
+	struct hci_dev *hdev;
+	struct hci_conn *conn;
+
+	hdev = hci_get_route(dst, src);
+	if (!hdev)
+		return NULL;
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
+
+	hci_dev_put(hdev);
+
+	return conn ? &conn->dev : NULL;
+}
+
+static struct device_type bnep_type = {
+	.name	= "bluetooth",
+};
+
+int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
+{
+	struct net_device *dev;
+	struct bnep_session *s, *ss;
+	u8 dst[ETH_ALEN], src[ETH_ALEN];
+	int err;
+
+	BT_DBG("");
+
+	baswap((void *) dst, &bt_sk(sock->sk)->dst);
+	baswap((void *) src, &bt_sk(sock->sk)->src);
+
+	/* session struct allocated as private part of net_device */
+	dev = alloc_netdev(sizeof(struct bnep_session),
+				(*req->device) ? req->device : "bnep%d",
+				bnep_net_setup);
+	if (!dev)
+		return -ENOMEM;
+
+	down_write(&bnep_session_sem);
+
+	ss = __bnep_get_session(dst);
+	if (ss && ss->state == BT_CONNECTED) {
+		err = -EEXIST;
+		goto failed;
+	}
+
+	s = netdev_priv(dev);
+
+	/* This is rx header therefore addresses are swapped.
+	 * ie. eh.h_dest is our local address. */
+	memcpy(s->eh.h_dest,   &src, ETH_ALEN);
+	memcpy(s->eh.h_source, &dst, ETH_ALEN);
+	memcpy(dev->dev_addr, s->eh.h_dest, ETH_ALEN);
+
+	s->dev   = dev;
+	s->sock  = sock;
+	s->role  = req->role;
+	s->state = BT_CONNECTED;
+
+	s->msg.msg_flags = MSG_NOSIGNAL;
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+	/* Set default mc filter */
+	set_bit(bnep_mc_hash(dev->broadcast), (ulong *) &s->mc_filter);
+#endif
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+	/* Set default protocol filter */
+	bnep_set_default_proto_filter(s);
+#endif
+
+	SET_NETDEV_DEV(dev, bnep_get_device(s));
+	SET_NETDEV_DEVTYPE(dev, &bnep_type);
+
+	err = register_netdev(dev);
+	if (err)
+		goto failed;
+
+	__bnep_link_session(s);
+
+	__module_get(THIS_MODULE);
+	s->task = kthread_run(bnep_session, s, "kbnepd %s", dev->name);
+	if (IS_ERR(s->task)) {
+		/* Session thread start failed, gotta cleanup. */
+		module_put(THIS_MODULE);
+		unregister_netdev(dev);
+		__bnep_unlink_session(s);
+		err = PTR_ERR(s->task);
+		goto failed;
+	}
+
+	up_write(&bnep_session_sem);
+	strcpy(req->device, dev->name);
+	return 0;
+
+failed:
+	up_write(&bnep_session_sem);
+	free_netdev(dev);
+	return err;
+}
+
+int bnep_del_connection(struct bnep_conndel_req *req)
+{
+	struct bnep_session *s;
+	int  err = 0;
+
+	BT_DBG("");
+
+	down_read(&bnep_session_sem);
+
+	s = __bnep_get_session(req->dst);
+	if (s) {
+		atomic_inc(&s->terminate);
+		wake_up_process(s->task);
+	} else
+		err = -ENOENT;
+
+	up_read(&bnep_session_sem);
+	return err;
+}
+
+static void __bnep_copy_ci(struct bnep_conninfo *ci, struct bnep_session *s)
+{
+	memset(ci, 0, sizeof(*ci));
+	memcpy(ci->dst, s->eh.h_source, ETH_ALEN);
+	strcpy(ci->device, s->dev->name);
+	ci->flags = s->flags;
+	ci->state = s->state;
+	ci->role  = s->role;
+}
+
+int bnep_get_connlist(struct bnep_connlist_req *req)
+{
+	struct bnep_session *s;
+	int err = 0, n = 0;
+
+	down_read(&bnep_session_sem);
+
+	list_for_each_entry(s, &bnep_session_list, list) {
+		struct bnep_conninfo ci;
+
+		__bnep_copy_ci(&ci, s);
+
+		if (copy_to_user(req->ci, &ci, sizeof(ci))) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (++n >= req->cnum)
+			break;
+
+		req->ci++;
+	}
+	req->cnum = n;
+
+	up_read(&bnep_session_sem);
+	return err;
+}
+
+int bnep_get_conninfo(struct bnep_conninfo *ci)
+{
+	struct bnep_session *s;
+	int err = 0;
+
+	down_read(&bnep_session_sem);
+
+	s = __bnep_get_session(ci->dst);
+	if (s)
+		__bnep_copy_ci(ci, s);
+	else
+		err = -ENOENT;
+
+	up_read(&bnep_session_sem);
+	return err;
+}
+
+static int __init bnep_init(void)
+{
+	char flt[50] = "";
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+	strcat(flt, "protocol ");
+#endif
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+	strcat(flt, "multicast");
+#endif
+
+	BT_INFO("BNEP (Ethernet Emulation) ver %s", VERSION);
+	if (flt[0])
+		BT_INFO("BNEP filters: %s", flt);
+
+	bnep_sock_init();
+	return 0;
+}
+
+static void __exit bnep_exit(void)
+{
+	bnep_sock_cleanup();
+}
+
+module_init(bnep_init);
+module_exit(bnep_exit);
+
+module_param(compress_src, bool, 0644);
+MODULE_PARM_DESC(compress_src, "Compress sources headers");
+
+module_param(compress_dst, bool, 0644);
+MODULE_PARM_DESC(compress_dst, "Compress destination headers");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth BNEP ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("bt-proto-4");
diff --git a/net/bluetooth_tizen/bnep/netdev.c b/net/bluetooth_tizen/bnep/netdev.c
new file mode 100644
index 0000000..bc40864
--- /dev/null
+++ b/net/bluetooth_tizen/bnep/netdev.c
@@ -0,0 +1,238 @@
+/*
+   BNEP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2001-2002 Inventel Systemes
+   Written 2001-2002 by
+	Clément Moreau <clement.moreau@inventel.fr>
+	David Libault  <david.libault@inventel.fr>
+
+   Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include <linux/socket.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/wait.h>
+
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+
+#include "bnep.h"
+
+#define BNEP_TX_QUEUE_LEN 20
+
+static int bnep_net_open(struct net_device *dev)
+{
+	netif_start_queue(dev);
+	return 0;
+}
+
+static int bnep_net_close(struct net_device *dev)
+{
+	netif_stop_queue(dev);
+	return 0;
+}
+
+static void bnep_net_set_mc_list(struct net_device *dev)
+{
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+	struct bnep_session *s = netdev_priv(dev);
+	struct sock *sk = s->sock->sk;
+	struct bnep_set_filter_req *r;
+	struct sk_buff *skb;
+	int size;
+
+	BT_DBG("%s mc_count %d", dev->name, netdev_mc_count(dev));
+
+	size = sizeof(*r) + (BNEP_MAX_MULTICAST_FILTERS + 1) * ETH_ALEN * 2;
+	skb  = alloc_skb(size, GFP_ATOMIC);
+	if (!skb) {
+		BT_ERR("%s Multicast list allocation failed", dev->name);
+		return;
+	}
+
+	r = (void *) skb->data;
+	__skb_put(skb, sizeof(*r));
+
+	r->type = BNEP_CONTROL;
+	r->ctrl = BNEP_FILTER_MULTI_ADDR_SET;
+
+	if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) {
+		u8 start[ETH_ALEN] = { 0x01 };
+
+		/* Request all addresses */
+		memcpy(__skb_put(skb, ETH_ALEN), start, ETH_ALEN);
+		memcpy(__skb_put(skb, ETH_ALEN), dev->broadcast, ETH_ALEN);
+		r->len = htons(ETH_ALEN * 2);
+	} else {
+		struct netdev_hw_addr *ha;
+		int i, len = skb->len;
+
+		if (dev->flags & IFF_BROADCAST) {
+			memcpy(__skb_put(skb, ETH_ALEN), dev->broadcast, ETH_ALEN);
+			memcpy(__skb_put(skb, ETH_ALEN), dev->broadcast, ETH_ALEN);
+		}
+
+		/* FIXME: We should group addresses here. */
+
+		i = 0;
+		netdev_for_each_mc_addr(ha, dev) {
+			if (i == BNEP_MAX_MULTICAST_FILTERS)
+				break;
+			memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
+			memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
+
+			i++;
+		}
+		r->len = htons(skb->len - len);
+	}
+
+	skb_queue_tail(&sk->sk_write_queue, skb);
+	wake_up_interruptible(sk_sleep(sk));
+#endif
+}
+
+static int bnep_net_set_mac_addr(struct net_device *dev, void *arg)
+{
+	BT_DBG("%s", dev->name);
+	return 0;
+}
+
+static void bnep_net_timeout(struct net_device *dev)
+{
+	BT_DBG("net_timeout");
+	netif_wake_queue(dev);
+}
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+static inline int bnep_net_mc_filter(struct sk_buff *skb, struct bnep_session *s)
+{
+	struct ethhdr *eh = (void *) skb->data;
+
+	if ((eh->h_dest[0] & 1) && !test_bit(bnep_mc_hash(eh->h_dest), (ulong *) &s->mc_filter))
+		return 1;
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+/* Determine ether protocol. Based on eth_type_trans. */
+static inline u16 bnep_net_eth_proto(struct sk_buff *skb)
+{
+	struct ethhdr *eh = (void *) skb->data;
+	u16 proto = ntohs(eh->h_proto);
+
+	if (proto >= 1536)
+		return proto;
+
+	if (get_unaligned((__be16 *) skb->data) == htons(0xFFFF))
+		return ETH_P_802_3;
+
+	return ETH_P_802_2;
+}
+
+static inline int bnep_net_proto_filter(struct sk_buff *skb, struct bnep_session *s)
+{
+	u16 proto = bnep_net_eth_proto(skb);
+	struct bnep_proto_filter *f = s->proto_filter;
+	int i;
+
+	for (i = 0; i < BNEP_MAX_PROTO_FILTERS && f[i].end; i++) {
+		if (proto >= f[i].start && proto <= f[i].end)
+			return 0;
+	}
+
+	BT_DBG("BNEP: filtered skb %p, proto 0x%.4x", skb, proto);
+	return 1;
+}
+#endif
+
+static netdev_tx_t bnep_net_xmit(struct sk_buff *skb,
+				 struct net_device *dev)
+{
+	struct bnep_session *s = netdev_priv(dev);
+	struct sock *sk = s->sock->sk;
+
+	BT_DBG("skb %p, dev %p", skb, dev);
+
+#ifdef CONFIG_BT_BNEP_MC_FILTER
+	if (bnep_net_mc_filter(skb, s)) {
+		kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
+#endif
+
+#ifdef CONFIG_BT_BNEP_PROTO_FILTER
+	if (bnep_net_proto_filter(skb, s)) {
+		kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
+#endif
+
+	/*
+	 * We cannot send L2CAP packets from here as we are potentially in a bh.
+	 * So we have to queue them and wake up session thread which is sleeping
+	 * on the sk_sleep(sk).
+	 */
+	dev->trans_start = jiffies;
+	skb_queue_tail(&sk->sk_write_queue, skb);
+	wake_up_interruptible(sk_sleep(sk));
+
+	if (skb_queue_len(&sk->sk_write_queue) >= BNEP_TX_QUEUE_LEN) {
+		BT_DBG("tx queue is full");
+
+		/* Stop queuing.
+		 * Session thread will do netif_wake_queue() */
+		netif_stop_queue(dev);
+	}
+
+	return NETDEV_TX_OK;
+}
+
+static const struct net_device_ops bnep_netdev_ops = {
+	.ndo_open            = bnep_net_open,
+	.ndo_stop            = bnep_net_close,
+	.ndo_start_xmit	     = bnep_net_xmit,
+	.ndo_validate_addr   = eth_validate_addr,
+	.ndo_set_rx_mode     = bnep_net_set_mc_list,
+	.ndo_set_mac_address = bnep_net_set_mac_addr,
+	.ndo_tx_timeout      = bnep_net_timeout,
+	.ndo_change_mtu	     = eth_change_mtu,
+
+};
+
+void bnep_net_setup(struct net_device *dev)
+{
+
+	memset(dev->broadcast, 0xff, ETH_ALEN);
+	dev->addr_len = ETH_ALEN;
+
+	ether_setup(dev);
+	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
+	dev->netdev_ops = &bnep_netdev_ops;
+
+	dev->watchdog_timeo  = HZ * 2;
+}
diff --git a/net/bluetooth_tizen/bnep/sock.c b/net/bluetooth_tizen/bnep/sock.c
new file mode 100644
index 0000000..9f9c8dc
--- /dev/null
+++ b/net/bluetooth_tizen/bnep/sock.c
@@ -0,0 +1,259 @@
+/*
+   BNEP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2001-2002 Inventel Systemes
+   Written 2001-2002 by
+	David Libault  <david.libault@inventel.fr>
+
+   Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/skbuff.h>
+#include <linux/socket.h>
+#include <linux/ioctl.h>
+#include <linux/file.h>
+#include <linux/init.h>
+#include <linux/compat.h>
+#include <linux/gfp.h>
+#include <linux/uaccess.h>
+#include <net/sock.h>
+
+#include <asm/system.h>
+
+#include "bnep.h"
+
+static int bnep_sock_release(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+
+	BT_DBG("sock %p sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	sock_orphan(sk);
+	sock_put(sk);
+	return 0;
+}
+
+static int bnep_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+	struct bnep_connlist_req cl;
+	struct bnep_connadd_req  ca;
+	struct bnep_conndel_req  cd;
+	struct bnep_conninfo ci;
+	struct socket *nsock;
+	void __user *argp = (void __user *)arg;
+	int err;
+
+	BT_DBG("cmd %x arg %lx", cmd, arg);
+
+	switch (cmd) {
+	case BNEPCONNADD:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+
+		if (copy_from_user(&ca, argp, sizeof(ca)))
+			return -EFAULT;
+
+		nsock = sockfd_lookup(ca.sock, &err);
+		if (!nsock)
+			return err;
+
+		if (nsock->sk->sk_state != BT_CONNECTED) {
+			sockfd_put(nsock);
+			return -EBADFD;
+		}
+		ca.device[sizeof(ca.device)-1] = 0;
+
+		err = bnep_add_connection(&ca, nsock);
+		if (!err) {
+			if (copy_to_user(argp, &ca, sizeof(ca)))
+				err = -EFAULT;
+		} else
+			sockfd_put(nsock);
+
+		return err;
+
+	case BNEPCONNDEL:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+
+		if (copy_from_user(&cd, argp, sizeof(cd)))
+			return -EFAULT;
+
+		return bnep_del_connection(&cd);
+
+	case BNEPGETCONNLIST:
+		if (copy_from_user(&cl, argp, sizeof(cl)))
+			return -EFAULT;
+
+		if (cl.cnum <= 0)
+			return -EINVAL;
+
+		err = bnep_get_connlist(&cl);
+		if (!err && copy_to_user(argp, &cl, sizeof(cl)))
+			return -EFAULT;
+
+		return err;
+
+	case BNEPGETCONNINFO:
+		if (copy_from_user(&ci, argp, sizeof(ci)))
+			return -EFAULT;
+
+		err = bnep_get_conninfo(&ci);
+		if (!err && copy_to_user(argp, &ci, sizeof(ci)))
+			return -EFAULT;
+
+		return err;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_COMPAT
+static int bnep_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+	if (cmd == BNEPGETCONNLIST) {
+		struct bnep_connlist_req cl;
+		u32 uci;
+		int err;
+
+		if (get_user(cl.cnum, (u32 __user *) arg) ||
+				get_user(uci, (u32 __user *) (arg + 4)))
+			return -EFAULT;
+
+		cl.ci = compat_ptr(uci);
+
+		if (cl.cnum <= 0)
+			return -EINVAL;
+
+		err = bnep_get_connlist(&cl);
+
+		if (!err && put_user(cl.cnum, (u32 __user *) arg))
+			err = -EFAULT;
+
+		return err;
+	}
+
+	return bnep_sock_ioctl(sock, cmd, arg);
+}
+#endif
+
+static const struct proto_ops bnep_sock_ops = {
+	.family		= PF_BLUETOOTH,
+	.owner		= THIS_MODULE,
+	.release	= bnep_sock_release,
+	.ioctl		= bnep_sock_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= bnep_sock_compat_ioctl,
+#endif
+	.bind		= sock_no_bind,
+	.getname	= sock_no_getname,
+	.sendmsg	= sock_no_sendmsg,
+	.recvmsg	= sock_no_recvmsg,
+	.poll		= sock_no_poll,
+	.listen		= sock_no_listen,
+	.shutdown	= sock_no_shutdown,
+	.setsockopt	= sock_no_setsockopt,
+	.getsockopt	= sock_no_getsockopt,
+	.connect	= sock_no_connect,
+	.socketpair	= sock_no_socketpair,
+	.accept		= sock_no_accept,
+	.mmap		= sock_no_mmap
+};
+
+static struct proto bnep_proto = {
+	.name		= "BNEP",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct bt_sock)
+};
+
+static int bnep_sock_create(struct net *net, struct socket *sock, int protocol,
+			    int kern)
+{
+	struct sock *sk;
+
+	BT_DBG("sock %p", sock);
+
+	if (sock->type != SOCK_RAW)
+		return -ESOCKTNOSUPPORT;
+
+	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto);
+	if (!sk)
+		return -ENOMEM;
+
+	sock_init_data(sock, sk);
+
+	sock->ops = &bnep_sock_ops;
+
+	sock->state = SS_UNCONNECTED;
+
+	sock_reset_flag(sk, SOCK_ZAPPED);
+
+	sk->sk_protocol = protocol;
+	sk->sk_state	= BT_OPEN;
+
+	return 0;
+}
+
+static const struct net_proto_family bnep_sock_family_ops = {
+	.family = PF_BLUETOOTH,
+	.owner	= THIS_MODULE,
+	.create = bnep_sock_create
+};
+
+int __init bnep_sock_init(void)
+{
+	int err;
+
+	err = proto_register(&bnep_proto, 0);
+	if (err < 0)
+		return err;
+
+	err = bt_sock_register(BTPROTO_BNEP, &bnep_sock_family_ops);
+	if (err < 0)
+		goto error;
+
+	return 0;
+
+error:
+	BT_ERR("Can't register BNEP socket");
+	proto_unregister(&bnep_proto);
+	return err;
+}
+
+void __exit bnep_sock_cleanup(void)
+{
+	if (bt_sock_unregister(BTPROTO_BNEP) < 0)
+		BT_ERR("Can't unregister BNEP socket");
+
+	proto_unregister(&bnep_proto);
+}
diff --git a/net/bluetooth_tizen/cmtp/Kconfig b/net/bluetooth_tizen/cmtp/Kconfig
new file mode 100644
index 0000000..94cbf42
--- /dev/null
+++ b/net/bluetooth_tizen/cmtp/Kconfig
@@ -0,0 +1,11 @@
+config BT_CMTP
+	tristate "CMTP protocol support"
+	depends on BT && ISDN_CAPI
+	help
+	  CMTP (CAPI Message Transport Protocol) is a transport layer
+	  for CAPI messages.  CMTP is required for the Bluetooth Common
+	  ISDN Access Profile.
+
+	  Say Y here to compile CMTP support into the kernel or say M to
+	  compile it as module (cmtp).
+
diff --git a/net/bluetooth_tizen/cmtp/Makefile b/net/bluetooth_tizen/cmtp/Makefile
new file mode 100644
index 0000000..890a9a5
--- /dev/null
+++ b/net/bluetooth_tizen/cmtp/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the Linux Bluetooth CMTP layer
+#
+
+obj-$(CONFIG_BT_CMTP) += cmtp.o
+
+cmtp-objs := core.o sock.o capi.o
diff --git a/net/bluetooth_tizen/cmtp/capi.c b/net/bluetooth_tizen/cmtp/capi.c
new file mode 100644
index 0000000..50f0d13
--- /dev/null
+++ b/net/bluetooth_tizen/cmtp/capi.c
@@ -0,0 +1,624 @@
+/*
+   CMTP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2002-2003 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/skbuff.h>
+#include <linux/socket.h>
+#include <linux/ioctl.h>
+#include <linux/file.h>
+#include <linux/wait.h>
+#include <linux/kthread.h>
+#include <net/sock.h>
+
+#include <linux/isdn/capilli.h>
+#include <linux/isdn/capicmd.h>
+#include <linux/isdn/capiutil.h>
+
+#include "cmtp.h"
+
+#define CAPI_INTEROPERABILITY		0x20
+
+#define CAPI_INTEROPERABILITY_REQ	CAPICMD(CAPI_INTEROPERABILITY, CAPI_REQ)
+#define CAPI_INTEROPERABILITY_CONF	CAPICMD(CAPI_INTEROPERABILITY, CAPI_CONF)
+#define CAPI_INTEROPERABILITY_IND	CAPICMD(CAPI_INTEROPERABILITY, CAPI_IND)
+#define CAPI_INTEROPERABILITY_RESP	CAPICMD(CAPI_INTEROPERABILITY, CAPI_RESP)
+
+#define CAPI_INTEROPERABILITY_REQ_LEN	(CAPI_MSG_BASELEN + 2)
+#define CAPI_INTEROPERABILITY_CONF_LEN	(CAPI_MSG_BASELEN + 4)
+#define CAPI_INTEROPERABILITY_IND_LEN	(CAPI_MSG_BASELEN + 2)
+#define CAPI_INTEROPERABILITY_RESP_LEN	(CAPI_MSG_BASELEN + 2)
+
+#define CAPI_FUNCTION_REGISTER		0
+#define CAPI_FUNCTION_RELEASE		1
+#define CAPI_FUNCTION_GET_PROFILE	2
+#define CAPI_FUNCTION_GET_MANUFACTURER	3
+#define CAPI_FUNCTION_GET_VERSION	4
+#define CAPI_FUNCTION_GET_SERIAL_NUMBER	5
+#define CAPI_FUNCTION_MANUFACTURER	6
+#define CAPI_FUNCTION_LOOPBACK		7
+
+
+#define CMTP_MSGNUM	1
+#define CMTP_APPLID	2
+#define CMTP_MAPPING	3
+
+static struct cmtp_application *cmtp_application_add(struct cmtp_session *session, __u16 appl)
+{
+	struct cmtp_application *app = kzalloc(sizeof(*app), GFP_KERNEL);
+
+	BT_DBG("session %p application %p appl %d", session, app, appl);
+
+	if (!app)
+		return NULL;
+
+	app->state = BT_OPEN;
+	app->appl = appl;
+
+	list_add_tail(&app->list, &session->applications);
+
+	return app;
+}
+
+static void cmtp_application_del(struct cmtp_session *session, struct cmtp_application *app)
+{
+	BT_DBG("session %p application %p", session, app);
+
+	if (app) {
+		list_del(&app->list);
+		kfree(app);
+	}
+}
+
+static struct cmtp_application *cmtp_application_get(struct cmtp_session *session, int pattern, __u16 value)
+{
+	struct cmtp_application *app;
+	struct list_head *p, *n;
+
+	list_for_each_safe(p, n, &session->applications) {
+		app = list_entry(p, struct cmtp_application, list);
+		switch (pattern) {
+		case CMTP_MSGNUM:
+			if (app->msgnum == value)
+				return app;
+			break;
+		case CMTP_APPLID:
+			if (app->appl == value)
+				return app;
+			break;
+		case CMTP_MAPPING:
+			if (app->mapping == value)
+				return app;
+			break;
+		}
+	}
+
+	return NULL;
+}
+
+static int cmtp_msgnum_get(struct cmtp_session *session)
+{
+	session->msgnum++;
+
+	if ((session->msgnum & 0xff) > 200)
+		session->msgnum = CMTP_INITIAL_MSGNUM + 1;
+
+	return session->msgnum;
+}
+
+static void cmtp_send_capimsg(struct cmtp_session *session, struct sk_buff *skb)
+{
+	struct cmtp_scb *scb = (void *) skb->cb;
+
+	BT_DBG("session %p skb %p len %d", session, skb, skb->len);
+
+	scb->id = -1;
+	scb->data = (CAPIMSG_COMMAND(skb->data) == CAPI_DATA_B3);
+
+	skb_queue_tail(&session->transmit, skb);
+
+	wake_up_interruptible(sk_sleep(session->sock->sk));
+}
+
+static void cmtp_send_interopmsg(struct cmtp_session *session,
+					__u8 subcmd, __u16 appl, __u16 msgnum,
+					__u16 function, unsigned char *buf, int len)
+{
+	struct sk_buff *skb;
+	unsigned char *s;
+
+	BT_DBG("session %p subcmd 0x%02x appl %d msgnum %d", session, subcmd, appl, msgnum);
+
+	skb = alloc_skb(CAPI_MSG_BASELEN + 6 + len, GFP_ATOMIC);
+	if (!skb) {
+		BT_ERR("Can't allocate memory for interoperability packet");
+		return;
+	}
+
+	s = skb_put(skb, CAPI_MSG_BASELEN + 6 + len);
+
+	capimsg_setu16(s, 0, CAPI_MSG_BASELEN + 6 + len);
+	capimsg_setu16(s, 2, appl);
+	capimsg_setu8 (s, 4, CAPI_INTEROPERABILITY);
+	capimsg_setu8 (s, 5, subcmd);
+	capimsg_setu16(s, 6, msgnum);
+
+	/* Interoperability selector (Bluetooth Device Management) */
+	capimsg_setu16(s, 8, 0x0001);
+
+	capimsg_setu8 (s, 10, 3 + len);
+	capimsg_setu16(s, 11, function);
+	capimsg_setu8 (s, 13, len);
+
+	if (len > 0)
+		memcpy(s + 14, buf, len);
+
+	cmtp_send_capimsg(session, skb);
+}
+
+static void cmtp_recv_interopmsg(struct cmtp_session *session, struct sk_buff *skb)
+{
+	struct capi_ctr *ctrl = &session->ctrl;
+	struct cmtp_application *application;
+	__u16 appl, msgnum, func, info;
+	__u32 controller;
+
+	BT_DBG("session %p skb %p len %d", session, skb, skb->len);
+
+	switch (CAPIMSG_SUBCOMMAND(skb->data)) {
+	case CAPI_CONF:
+		if (skb->len < CAPI_MSG_BASELEN + 10)
+			break;
+
+		func = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 5);
+		info = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 8);
+
+		switch (func) {
+		case CAPI_FUNCTION_REGISTER:
+			msgnum = CAPIMSG_MSGID(skb->data);
+
+			application = cmtp_application_get(session, CMTP_MSGNUM, msgnum);
+			if (application) {
+				application->state = BT_CONNECTED;
+				application->msgnum = 0;
+				application->mapping = CAPIMSG_APPID(skb->data);
+				wake_up_interruptible(&session->wait);
+			}
+
+			break;
+
+		case CAPI_FUNCTION_RELEASE:
+			appl = CAPIMSG_APPID(skb->data);
+
+			application = cmtp_application_get(session, CMTP_MAPPING, appl);
+			if (application) {
+				application->state = BT_CLOSED;
+				application->msgnum = 0;
+				wake_up_interruptible(&session->wait);
+			}
+
+			break;
+
+		case CAPI_FUNCTION_GET_PROFILE:
+			if (skb->len < CAPI_MSG_BASELEN + 11 + sizeof(capi_profile))
+				break;
+
+			controller = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 11);
+			msgnum = CAPIMSG_MSGID(skb->data);
+
+			if (!info && (msgnum == CMTP_INITIAL_MSGNUM)) {
+				session->ncontroller = controller;
+				wake_up_interruptible(&session->wait);
+				break;
+			}
+
+			if (!info && ctrl) {
+				memcpy(&ctrl->profile,
+					skb->data + CAPI_MSG_BASELEN + 11,
+					sizeof(capi_profile));
+				session->state = BT_CONNECTED;
+				capi_ctr_ready(ctrl);
+			}
+
+			break;
+
+		case CAPI_FUNCTION_GET_MANUFACTURER:
+			if (skb->len < CAPI_MSG_BASELEN + 15)
+				break;
+
+			controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 10);
+
+			if (!info && ctrl) {
+				int len = min_t(uint, CAPI_MANUFACTURER_LEN,
+						skb->data[CAPI_MSG_BASELEN + 14]);
+
+				memset(ctrl->manu, 0, CAPI_MANUFACTURER_LEN);
+				strncpy(ctrl->manu,
+					skb->data + CAPI_MSG_BASELEN + 15, len);
+			}
+
+			break;
+
+		case CAPI_FUNCTION_GET_VERSION:
+			if (skb->len < CAPI_MSG_BASELEN + 32)
+				break;
+
+			controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 12);
+
+			if (!info && ctrl) {
+				ctrl->version.majorversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 16);
+				ctrl->version.minorversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 20);
+				ctrl->version.majormanuversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 24);
+				ctrl->version.minormanuversion = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 28);
+			}
+
+			break;
+
+		case CAPI_FUNCTION_GET_SERIAL_NUMBER:
+			if (skb->len < CAPI_MSG_BASELEN + 17)
+				break;
+
+			controller = CAPIMSG_U32(skb->data, CAPI_MSG_BASELEN + 12);
+
+			if (!info && ctrl) {
+				int len = min_t(uint, CAPI_SERIAL_LEN,
+						skb->data[CAPI_MSG_BASELEN + 16]);
+
+				memset(ctrl->serial, 0, CAPI_SERIAL_LEN);
+				strncpy(ctrl->serial,
+					skb->data + CAPI_MSG_BASELEN + 17, len);
+			}
+
+			break;
+		}
+
+		break;
+
+	case CAPI_IND:
+		if (skb->len < CAPI_MSG_BASELEN + 6)
+			break;
+
+		func = CAPIMSG_U16(skb->data, CAPI_MSG_BASELEN + 3);
+
+		if (func == CAPI_FUNCTION_LOOPBACK) {
+			int len = min_t(uint, skb->len - CAPI_MSG_BASELEN - 6,
+						skb->data[CAPI_MSG_BASELEN + 5]);
+			appl = CAPIMSG_APPID(skb->data);
+			msgnum = CAPIMSG_MSGID(skb->data);
+			cmtp_send_interopmsg(session, CAPI_RESP, appl, msgnum, func,
+						skb->data + CAPI_MSG_BASELEN + 6, len);
+		}
+
+		break;
+	}
+
+	kfree_skb(skb);
+}
+
+void cmtp_recv_capimsg(struct cmtp_session *session, struct sk_buff *skb)
+{
+	struct capi_ctr *ctrl = &session->ctrl;
+	struct cmtp_application *application;
+	__u16 appl;
+	__u32 contr;
+
+	BT_DBG("session %p skb %p len %d", session, skb, skb->len);
+
+	if (skb->len < CAPI_MSG_BASELEN)
+		return;
+
+	if (CAPIMSG_COMMAND(skb->data) == CAPI_INTEROPERABILITY) {
+		cmtp_recv_interopmsg(session, skb);
+		return;
+	}
+
+	if (session->flags & (1 << CMTP_LOOPBACK)) {
+		kfree_skb(skb);
+		return;
+	}
+
+	appl = CAPIMSG_APPID(skb->data);
+	contr = CAPIMSG_CONTROL(skb->data);
+
+	application = cmtp_application_get(session, CMTP_MAPPING, appl);
+	if (application) {
+		appl = application->appl;
+		CAPIMSG_SETAPPID(skb->data, appl);
+	} else {
+		BT_ERR("Can't find application with id %d", appl);
+		kfree_skb(skb);
+		return;
+	}
+
+	if ((contr & 0x7f) == 0x01) {
+		contr = (contr & 0xffffff80) | session->num;
+		CAPIMSG_SETCONTROL(skb->data, contr);
+	}
+
+	if (!ctrl) {
+		BT_ERR("Can't find controller %d for message", session->num);
+		kfree_skb(skb);
+		return;
+	}
+
+	capi_ctr_handle_message(ctrl, appl, skb);
+}
+
+static int cmtp_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
+{
+	BT_DBG("ctrl %p data %p", ctrl, data);
+
+	return 0;
+}
+
+static void cmtp_reset_ctr(struct capi_ctr *ctrl)
+{
+	struct cmtp_session *session = ctrl->driverdata;
+
+	BT_DBG("ctrl %p", ctrl);
+
+	capi_ctr_down(ctrl);
+
+	atomic_inc(&session->terminate);
+	wake_up_process(session->task);
+}
+
+static void cmtp_register_appl(struct capi_ctr *ctrl, __u16 appl, capi_register_params *rp)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	struct cmtp_session *session = ctrl->driverdata;
+	struct cmtp_application *application;
+	unsigned long timeo = CMTP_INTEROP_TIMEOUT;
+	unsigned char buf[8];
+	int err = 0, nconn, want = rp->level3cnt;
+
+	BT_DBG("ctrl %p appl %d level3cnt %d datablkcnt %d datablklen %d",
+		ctrl, appl, rp->level3cnt, rp->datablkcnt, rp->datablklen);
+
+	application = cmtp_application_add(session, appl);
+	if (!application) {
+		BT_ERR("Can't allocate memory for new application");
+		return;
+	}
+
+	if (want < 0)
+		nconn = ctrl->profile.nbchannel * -want;
+	else
+		nconn = want;
+
+	if (nconn == 0)
+		nconn = ctrl->profile.nbchannel;
+
+	capimsg_setu16(buf, 0, nconn);
+	capimsg_setu16(buf, 2, rp->datablkcnt);
+	capimsg_setu16(buf, 4, rp->datablklen);
+
+	application->state = BT_CONFIG;
+	application->msgnum = cmtp_msgnum_get(session);
+
+	cmtp_send_interopmsg(session, CAPI_REQ, 0x0000, application->msgnum,
+				CAPI_FUNCTION_REGISTER, buf, 6);
+
+	add_wait_queue(&session->wait, &wait);
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (!timeo) {
+			err = -EAGAIN;
+			break;
+		}
+
+		if (application->state == BT_CLOSED) {
+			err = -application->err;
+			break;
+		}
+
+		if (application->state == BT_CONNECTED)
+			break;
+
+		if (signal_pending(current)) {
+			err = -EINTR;
+			break;
+		}
+
+		timeo = schedule_timeout(timeo);
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&session->wait, &wait);
+
+	if (err) {
+		cmtp_application_del(session, application);
+		return;
+	}
+}
+
+static void cmtp_release_appl(struct capi_ctr *ctrl, __u16 appl)
+{
+	struct cmtp_session *session = ctrl->driverdata;
+	struct cmtp_application *application;
+
+	BT_DBG("ctrl %p appl %d", ctrl, appl);
+
+	application = cmtp_application_get(session, CMTP_APPLID, appl);
+	if (!application) {
+		BT_ERR("Can't find application");
+		return;
+	}
+
+	application->msgnum = cmtp_msgnum_get(session);
+
+	cmtp_send_interopmsg(session, CAPI_REQ, application->mapping, application->msgnum,
+				CAPI_FUNCTION_RELEASE, NULL, 0);
+
+	wait_event_interruptible_timeout(session->wait,
+			(application->state == BT_CLOSED), CMTP_INTEROP_TIMEOUT);
+
+	cmtp_application_del(session, application);
+}
+
+static u16 cmtp_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
+{
+	struct cmtp_session *session = ctrl->driverdata;
+	struct cmtp_application *application;
+	__u16 appl;
+	__u32 contr;
+
+	BT_DBG("ctrl %p skb %p", ctrl, skb);
+
+	appl = CAPIMSG_APPID(skb->data);
+	contr = CAPIMSG_CONTROL(skb->data);
+
+	application = cmtp_application_get(session, CMTP_APPLID, appl);
+	if ((!application) || (application->state != BT_CONNECTED)) {
+		BT_ERR("Can't find application with id %d", appl);
+		return CAPI_ILLAPPNR;
+	}
+
+	CAPIMSG_SETAPPID(skb->data, application->mapping);
+
+	if ((contr & 0x7f) == session->num) {
+		contr = (contr & 0xffffff80) | 0x01;
+		CAPIMSG_SETCONTROL(skb->data, contr);
+	}
+
+	cmtp_send_capimsg(session, skb);
+
+	return CAPI_NOERROR;
+}
+
+static char *cmtp_procinfo(struct capi_ctr *ctrl)
+{
+	return "CAPI Message Transport Protocol";
+}
+
+static int cmtp_proc_show(struct seq_file *m, void *v)
+{
+	struct capi_ctr *ctrl = m->private;
+	struct cmtp_session *session = ctrl->driverdata;
+	struct cmtp_application *app;
+	struct list_head *p, *n;
+
+	seq_printf(m, "%s\n\n", cmtp_procinfo(ctrl));
+	seq_printf(m, "addr %s\n", session->name);
+	seq_printf(m, "ctrl %d\n", session->num);
+
+	list_for_each_safe(p, n, &session->applications) {
+		app = list_entry(p, struct cmtp_application, list);
+		seq_printf(m, "appl %d -> %d\n", app->appl, app->mapping);
+	}
+
+	return 0;
+}
+
+static int cmtp_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, cmtp_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations cmtp_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= cmtp_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+int cmtp_attach_device(struct cmtp_session *session)
+{
+	unsigned char buf[4];
+	long ret;
+
+	BT_DBG("session %p", session);
+
+	capimsg_setu32(buf, 0, 0);
+
+	cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, CMTP_INITIAL_MSGNUM,
+				CAPI_FUNCTION_GET_PROFILE, buf, 4);
+
+	ret = wait_event_interruptible_timeout(session->wait,
+			session->ncontroller, CMTP_INTEROP_TIMEOUT);
+
+	BT_INFO("Found %d CAPI controller(s) on device %s", session->ncontroller, session->name);
+
+	if (!ret)
+		return -ETIMEDOUT;
+
+	if (!session->ncontroller)
+		return -ENODEV;
+
+	if (session->ncontroller > 1)
+		BT_INFO("Setting up only CAPI controller 1");
+
+	session->ctrl.owner      = THIS_MODULE;
+	session->ctrl.driverdata = session;
+	strcpy(session->ctrl.name, session->name);
+
+	session->ctrl.driver_name   = "cmtp";
+	session->ctrl.load_firmware = cmtp_load_firmware;
+	session->ctrl.reset_ctr     = cmtp_reset_ctr;
+	session->ctrl.register_appl = cmtp_register_appl;
+	session->ctrl.release_appl  = cmtp_release_appl;
+	session->ctrl.send_message  = cmtp_send_message;
+
+	session->ctrl.procinfo      = cmtp_procinfo;
+	session->ctrl.proc_fops = &cmtp_proc_fops;
+
+	if (attach_capi_ctr(&session->ctrl) < 0) {
+		BT_ERR("Can't attach new controller");
+		return -EBUSY;
+	}
+
+	session->num = session->ctrl.cnr;
+
+	BT_DBG("session %p num %d", session, session->num);
+
+	capimsg_setu32(buf, 0, 1);
+
+	cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),
+				CAPI_FUNCTION_GET_MANUFACTURER, buf, 4);
+
+	cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),
+				CAPI_FUNCTION_GET_VERSION, buf, 4);
+
+	cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),
+				CAPI_FUNCTION_GET_SERIAL_NUMBER, buf, 4);
+
+	cmtp_send_interopmsg(session, CAPI_REQ, 0xffff, cmtp_msgnum_get(session),
+				CAPI_FUNCTION_GET_PROFILE, buf, 4);
+
+	return 0;
+}
+
+void cmtp_detach_device(struct cmtp_session *session)
+{
+	BT_DBG("session %p", session);
+
+	detach_capi_ctr(&session->ctrl);
+}
diff --git a/net/bluetooth_tizen/cmtp/cmtp.h b/net/bluetooth_tizen/cmtp/cmtp.h
new file mode 100644
index 0000000..c32638d
--- /dev/null
+++ b/net/bluetooth_tizen/cmtp/cmtp.h
@@ -0,0 +1,129 @@
+/*
+   CMTP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2002-2003 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#ifndef __CMTP_H
+#define __CMTP_H
+
+#include <linux/types.h>
+#include <net/bluetooth/bluetooth.h>
+
+#define BTNAMSIZ 18
+
+/* CMTP ioctl defines */
+#define CMTPCONNADD	_IOW('C', 200, int)
+#define CMTPCONNDEL	_IOW('C', 201, int)
+#define CMTPGETCONNLIST	_IOR('C', 210, int)
+#define CMTPGETCONNINFO	_IOR('C', 211, int)
+
+#define CMTP_LOOPBACK	0
+
+struct cmtp_connadd_req {
+	int   sock;	/* Connected socket */
+	__u32 flags;
+};
+
+struct cmtp_conndel_req {
+	bdaddr_t bdaddr;
+	__u32    flags;
+};
+
+struct cmtp_conninfo {
+	bdaddr_t bdaddr;
+	__u32    flags;
+	__u16    state;
+	int      num;
+};
+
+struct cmtp_connlist_req {
+	__u32  cnum;
+	struct cmtp_conninfo __user *ci;
+};
+
+int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock);
+int cmtp_del_connection(struct cmtp_conndel_req *req);
+int cmtp_get_connlist(struct cmtp_connlist_req *req);
+int cmtp_get_conninfo(struct cmtp_conninfo *ci);
+
+/* CMTP session defines */
+#define CMTP_INTEROP_TIMEOUT	(HZ * 5)
+#define CMTP_INITIAL_MSGNUM	0xff00
+
+struct cmtp_session {
+	struct list_head list;
+
+	struct socket *sock;
+
+	bdaddr_t bdaddr;
+
+	unsigned long state;
+	unsigned long flags;
+
+	uint mtu;
+
+	char name[BTNAMSIZ];
+
+	atomic_t terminate;
+	struct task_struct *task;
+
+	wait_queue_head_t wait;
+
+	int ncontroller;
+	int num;
+	struct capi_ctr ctrl;
+
+	struct list_head applications;
+
+	unsigned long blockids;
+	int msgnum;
+
+	struct sk_buff_head transmit;
+
+	struct sk_buff *reassembly[16];
+};
+
+struct cmtp_application {
+	struct list_head list;
+
+	unsigned long state;
+	int err;
+
+	__u16 appl;
+	__u16 mapping;
+
+	__u16 msgnum;
+};
+
+struct cmtp_scb {
+	int id;
+	int data;
+};
+
+int  cmtp_attach_device(struct cmtp_session *session);
+void cmtp_detach_device(struct cmtp_session *session);
+
+void cmtp_recv_capimsg(struct cmtp_session *session, struct sk_buff *skb);
+
+/* CMTP init defines */
+int cmtp_init_sockets(void);
+void cmtp_cleanup_sockets(void);
+
+#endif /* __CMTP_H */
diff --git a/net/bluetooth_tizen/cmtp/core.c b/net/bluetooth_tizen/cmtp/core.c
new file mode 100644
index 0000000..6c9c1fd
--- /dev/null
+++ b/net/bluetooth_tizen/cmtp/core.c
@@ -0,0 +1,500 @@
+/*
+   CMTP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2002-2003 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/freezer.h>
+#include <linux/skbuff.h>
+#include <linux/socket.h>
+#include <linux/ioctl.h>
+#include <linux/file.h>
+#include <linux/init.h>
+#include <linux/kthread.h>
+#include <net/sock.h>
+
+#include <linux/isdn/capilli.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/l2cap.h>
+
+#include "cmtp.h"
+
+#define VERSION "1.0"
+
+static DECLARE_RWSEM(cmtp_session_sem);
+static LIST_HEAD(cmtp_session_list);
+
+static struct cmtp_session *__cmtp_get_session(bdaddr_t *bdaddr)
+{
+	struct cmtp_session *session;
+
+	BT_DBG("");
+
+	list_for_each_entry(session, &cmtp_session_list, list)
+		if (!bacmp(bdaddr, &session->bdaddr))
+			return session;
+
+	return NULL;
+}
+
+static void __cmtp_link_session(struct cmtp_session *session)
+{
+	list_add(&session->list, &cmtp_session_list);
+}
+
+static void __cmtp_unlink_session(struct cmtp_session *session)
+{
+	list_del(&session->list);
+}
+
+static void __cmtp_copy_session(struct cmtp_session *session, struct cmtp_conninfo *ci)
+{
+	memset(ci, 0, sizeof(*ci));
+	bacpy(&ci->bdaddr, &session->bdaddr);
+
+	ci->flags = session->flags;
+	ci->state = session->state;
+
+	ci->num = session->num;
+}
+
+
+static inline int cmtp_alloc_block_id(struct cmtp_session *session)
+{
+	int i, id = -1;
+
+	for (i = 0; i < 16; i++)
+		if (!test_and_set_bit(i, &session->blockids)) {
+			id = i;
+			break;
+		}
+
+	return id;
+}
+
+static inline void cmtp_free_block_id(struct cmtp_session *session, int id)
+{
+	clear_bit(id, &session->blockids);
+}
+
+static inline void cmtp_add_msgpart(struct cmtp_session *session, int id, const unsigned char *buf, int count)
+{
+	struct sk_buff *skb = session->reassembly[id], *nskb;
+	int size;
+
+	BT_DBG("session %p buf %p count %d", session, buf, count);
+
+	size = (skb) ? skb->len + count : count;
+
+	nskb = alloc_skb(size, GFP_ATOMIC);
+	if (!nskb) {
+		BT_ERR("Can't allocate memory for CAPI message");
+		return;
+	}
+
+	if (skb && (skb->len > 0))
+		skb_copy_from_linear_data(skb, skb_put(nskb, skb->len), skb->len);
+
+	memcpy(skb_put(nskb, count), buf, count);
+
+	session->reassembly[id] = nskb;
+
+	kfree_skb(skb);
+}
+
+static inline int cmtp_recv_frame(struct cmtp_session *session, struct sk_buff *skb)
+{
+	__u8 hdr, hdrlen, id;
+	__u16 len;
+
+	BT_DBG("session %p skb %p len %d", session, skb, skb->len);
+
+	while (skb->len > 0) {
+		hdr = skb->data[0];
+
+		switch (hdr & 0xc0) {
+		case 0x40:
+			hdrlen = 2;
+			len = skb->data[1];
+			break;
+		case 0x80:
+			hdrlen = 3;
+			len = skb->data[1] | (skb->data[2] << 8);
+			break;
+		default:
+			hdrlen = 1;
+			len = 0;
+			break;
+		}
+
+		id = (hdr & 0x3c) >> 2;
+
+		BT_DBG("hdr 0x%02x hdrlen %d len %d id %d", hdr, hdrlen, len, id);
+
+		if (hdrlen + len > skb->len) {
+			BT_ERR("Wrong size or header information in CMTP frame");
+			break;
+		}
+
+		if (len == 0) {
+			skb_pull(skb, hdrlen);
+			continue;
+		}
+
+		switch (hdr & 0x03) {
+		case 0x00:
+			cmtp_add_msgpart(session, id, skb->data + hdrlen, len);
+			cmtp_recv_capimsg(session, session->reassembly[id]);
+			session->reassembly[id] = NULL;
+			break;
+		case 0x01:
+			cmtp_add_msgpart(session, id, skb->data + hdrlen, len);
+			break;
+		default:
+			if (session->reassembly[id] != NULL)
+				kfree_skb(session->reassembly[id]);
+			session->reassembly[id] = NULL;
+			break;
+		}
+
+		skb_pull(skb, hdrlen + len);
+	}
+
+	kfree_skb(skb);
+	return 0;
+}
+
+static int cmtp_send_frame(struct cmtp_session *session, unsigned char *data, int len)
+{
+	struct socket *sock = session->sock;
+	struct kvec iv = { data, len };
+	struct msghdr msg;
+
+	BT_DBG("session %p data %p len %d", session, data, len);
+
+	if (!len)
+		return 0;
+
+	memset(&msg, 0, sizeof(msg));
+
+	return kernel_sendmsg(sock, &msg, &iv, 1, len);
+}
+
+static void cmtp_process_transmit(struct cmtp_session *session)
+{
+	struct sk_buff *skb, *nskb;
+	unsigned char *hdr;
+	unsigned int size, tail;
+
+	BT_DBG("session %p", session);
+
+	nskb = alloc_skb(session->mtu, GFP_ATOMIC);
+	if (!nskb) {
+		BT_ERR("Can't allocate memory for new frame");
+		return;
+	}
+
+	while ((skb = skb_dequeue(&session->transmit))) {
+		struct cmtp_scb *scb = (void *) skb->cb;
+
+		tail = session->mtu - nskb->len;
+		if (tail < 5) {
+			cmtp_send_frame(session, nskb->data, nskb->len);
+			skb_trim(nskb, 0);
+			tail = session->mtu;
+		}
+
+		size = min_t(uint, ((tail < 258) ? (tail - 2) : (tail - 3)), skb->len);
+
+		if (scb->id < 0) {
+			scb->id = cmtp_alloc_block_id(session);
+			if (scb->id < 0) {
+				skb_queue_head(&session->transmit, skb);
+				break;
+			}
+		}
+
+		if (size < 256) {
+			hdr = skb_put(nskb, 2);
+			hdr[0] = 0x40
+				| ((scb->id << 2) & 0x3c)
+				| ((skb->len == size) ? 0x00 : 0x01);
+			hdr[1] = size;
+		} else {
+			hdr = skb_put(nskb, 3);
+			hdr[0] = 0x80
+				| ((scb->id << 2) & 0x3c)
+				| ((skb->len == size) ? 0x00 : 0x01);
+			hdr[1] = size & 0xff;
+			hdr[2] = size >> 8;
+		}
+
+		skb_copy_from_linear_data(skb, skb_put(nskb, size), size);
+		skb_pull(skb, size);
+
+		if (skb->len > 0) {
+			skb_queue_head(&session->transmit, skb);
+		} else {
+			cmtp_free_block_id(session, scb->id);
+			if (scb->data) {
+				cmtp_send_frame(session, nskb->data, nskb->len);
+				skb_trim(nskb, 0);
+			}
+			kfree_skb(skb);
+		}
+	}
+
+	cmtp_send_frame(session, nskb->data, nskb->len);
+
+	kfree_skb(nskb);
+}
+
+static int cmtp_session(void *arg)
+{
+	struct cmtp_session *session = arg;
+	struct sock *sk = session->sock->sk;
+	struct sk_buff *skb;
+	wait_queue_t wait;
+
+	BT_DBG("session %p", session);
+
+	set_user_nice(current, -15);
+
+	init_waitqueue_entry(&wait, current);
+	add_wait_queue(sk_sleep(sk), &wait);
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (atomic_read(&session->terminate))
+			break;
+		if (sk->sk_state != BT_CONNECTED)
+			break;
+
+		while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
+			skb_orphan(skb);
+			if (!skb_linearize(skb))
+				cmtp_recv_frame(session, skb);
+			else
+				kfree_skb(skb);
+		}
+
+		cmtp_process_transmit(session);
+
+		schedule();
+	}
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+
+	down_write(&cmtp_session_sem);
+
+	if (!(session->flags & (1 << CMTP_LOOPBACK)))
+		cmtp_detach_device(session);
+
+	fput(session->sock->file);
+
+	__cmtp_unlink_session(session);
+
+	up_write(&cmtp_session_sem);
+
+	kfree(session);
+	module_put_and_exit(0);
+	return 0;
+}
+
+int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
+{
+	struct cmtp_session *session, *s;
+	int i, err;
+
+	BT_DBG("");
+
+	session = kzalloc(sizeof(struct cmtp_session), GFP_KERNEL);
+	if (!session)
+		return -ENOMEM;
+
+	down_write(&cmtp_session_sem);
+
+	s = __cmtp_get_session(&bt_sk(sock->sk)->dst);
+	if (s && s->state == BT_CONNECTED) {
+		err = -EEXIST;
+		goto failed;
+	}
+
+	bacpy(&session->bdaddr, &bt_sk(sock->sk)->dst);
+
+	session->mtu = min_t(uint, l2cap_pi(sock->sk)->chan->omtu,
+					l2cap_pi(sock->sk)->chan->imtu);
+
+	BT_DBG("mtu %d", session->mtu);
+
+	sprintf(session->name, "%s", batostr(&bt_sk(sock->sk)->dst));
+
+	session->sock  = sock;
+	session->state = BT_CONFIG;
+
+	init_waitqueue_head(&session->wait);
+
+	session->msgnum = CMTP_INITIAL_MSGNUM;
+
+	INIT_LIST_HEAD(&session->applications);
+
+	skb_queue_head_init(&session->transmit);
+
+	for (i = 0; i < 16; i++)
+		session->reassembly[i] = NULL;
+
+	session->flags = req->flags;
+
+	__cmtp_link_session(session);
+
+	__module_get(THIS_MODULE);
+	session->task = kthread_run(cmtp_session, session, "kcmtpd_ctr_%d",
+								session->num);
+	if (IS_ERR(session->task)) {
+		module_put(THIS_MODULE);
+		err = PTR_ERR(session->task);
+		goto unlink;
+	}
+
+	if (!(session->flags & (1 << CMTP_LOOPBACK))) {
+		err = cmtp_attach_device(session);
+		if (err < 0) {
+			atomic_inc(&session->terminate);
+			wake_up_process(session->task);
+			up_write(&cmtp_session_sem);
+			return err;
+		}
+	}
+
+	up_write(&cmtp_session_sem);
+	return 0;
+
+unlink:
+	__cmtp_unlink_session(session);
+
+failed:
+	up_write(&cmtp_session_sem);
+	kfree(session);
+	return err;
+}
+
+int cmtp_del_connection(struct cmtp_conndel_req *req)
+{
+	struct cmtp_session *session;
+	int err = 0;
+
+	BT_DBG("");
+
+	down_read(&cmtp_session_sem);
+
+	session = __cmtp_get_session(&req->bdaddr);
+	if (session) {
+		/* Flush the transmit queue */
+		skb_queue_purge(&session->transmit);
+
+		/* Stop session thread */
+		atomic_inc(&session->terminate);
+		wake_up_process(session->task);
+	} else
+		err = -ENOENT;
+
+	up_read(&cmtp_session_sem);
+	return err;
+}
+
+int cmtp_get_connlist(struct cmtp_connlist_req *req)
+{
+	struct cmtp_session *session;
+	int err = 0, n = 0;
+
+	BT_DBG("");
+
+	down_read(&cmtp_session_sem);
+
+	list_for_each_entry(session, &cmtp_session_list, list) {
+		struct cmtp_conninfo ci;
+
+		__cmtp_copy_session(session, &ci);
+
+		if (copy_to_user(req->ci, &ci, sizeof(ci))) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (++n >= req->cnum)
+			break;
+
+		req->ci++;
+	}
+	req->cnum = n;
+
+	up_read(&cmtp_session_sem);
+	return err;
+}
+
+int cmtp_get_conninfo(struct cmtp_conninfo *ci)
+{
+	struct cmtp_session *session;
+	int err = 0;
+
+	down_read(&cmtp_session_sem);
+
+	session = __cmtp_get_session(&ci->bdaddr);
+	if (session)
+		__cmtp_copy_session(session, ci);
+	else
+		err = -ENOENT;
+
+	up_read(&cmtp_session_sem);
+	return err;
+}
+
+
+static int __init cmtp_init(void)
+{
+	BT_INFO("CMTP (CAPI Emulation) ver %s", VERSION);
+
+	cmtp_init_sockets();
+
+	return 0;
+}
+
+static void __exit cmtp_exit(void)
+{
+	cmtp_cleanup_sockets();
+}
+
+module_init(cmtp_init);
+module_exit(cmtp_exit);
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth CMTP ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("bt-proto-5");
diff --git a/net/bluetooth_tizen/cmtp/sock.c b/net/bluetooth_tizen/cmtp/sock.c
new file mode 100644
index 0000000..1230faa
--- /dev/null
+++ b/net/bluetooth_tizen/cmtp/sock.c
@@ -0,0 +1,253 @@
+/*
+   CMTP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2002-2003 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/skbuff.h>
+#include <linux/socket.h>
+#include <linux/ioctl.h>
+#include <linux/file.h>
+#include <linux/compat.h>
+#include <linux/gfp.h>
+#include <linux/uaccess.h>
+#include <net/sock.h>
+
+#include <linux/isdn/capilli.h>
+
+#include <asm/system.h>
+
+#include "cmtp.h"
+
+static int cmtp_sock_release(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+
+	BT_DBG("sock %p sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	sock_orphan(sk);
+	sock_put(sk);
+
+	return 0;
+}
+
+static int cmtp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+	struct cmtp_connadd_req ca;
+	struct cmtp_conndel_req cd;
+	struct cmtp_connlist_req cl;
+	struct cmtp_conninfo ci;
+	struct socket *nsock;
+	void __user *argp = (void __user *)arg;
+	int err;
+
+	BT_DBG("cmd %x arg %lx", cmd, arg);
+
+	switch (cmd) {
+	case CMTPCONNADD:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+
+		if (copy_from_user(&ca, argp, sizeof(ca)))
+			return -EFAULT;
+
+		nsock = sockfd_lookup(ca.sock, &err);
+		if (!nsock)
+			return err;
+
+		if (nsock->sk->sk_state != BT_CONNECTED) {
+			sockfd_put(nsock);
+			return -EBADFD;
+		}
+
+		err = cmtp_add_connection(&ca, nsock);
+		if (!err) {
+			if (copy_to_user(argp, &ca, sizeof(ca)))
+				err = -EFAULT;
+		} else
+			sockfd_put(nsock);
+
+		return err;
+
+	case CMTPCONNDEL:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+
+		if (copy_from_user(&cd, argp, sizeof(cd)))
+			return -EFAULT;
+
+		return cmtp_del_connection(&cd);
+
+	case CMTPGETCONNLIST:
+		if (copy_from_user(&cl, argp, sizeof(cl)))
+			return -EFAULT;
+
+		if (cl.cnum <= 0)
+			return -EINVAL;
+
+		err = cmtp_get_connlist(&cl);
+		if (!err && copy_to_user(argp, &cl, sizeof(cl)))
+			return -EFAULT;
+
+		return err;
+
+	case CMTPGETCONNINFO:
+		if (copy_from_user(&ci, argp, sizeof(ci)))
+			return -EFAULT;
+
+		err = cmtp_get_conninfo(&ci);
+		if (!err && copy_to_user(argp, &ci, sizeof(ci)))
+			return -EFAULT;
+
+		return err;
+	}
+
+	return -EINVAL;
+}
+
+#ifdef CONFIG_COMPAT
+static int cmtp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+	if (cmd == CMTPGETCONNLIST) {
+		struct cmtp_connlist_req cl;
+		u32 uci;
+		int err;
+
+		if (get_user(cl.cnum, (u32 __user *) arg) ||
+				get_user(uci, (u32 __user *) (arg + 4)))
+			return -EFAULT;
+
+		cl.ci = compat_ptr(uci);
+
+		if (cl.cnum <= 0)
+			return -EINVAL;
+
+		err = cmtp_get_connlist(&cl);
+
+		if (!err && put_user(cl.cnum, (u32 __user *) arg))
+			err = -EFAULT;
+
+		return err;
+	}
+
+	return cmtp_sock_ioctl(sock, cmd, arg);
+}
+#endif
+
+static const struct proto_ops cmtp_sock_ops = {
+	.family		= PF_BLUETOOTH,
+	.owner		= THIS_MODULE,
+	.release	= cmtp_sock_release,
+	.ioctl		= cmtp_sock_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= cmtp_sock_compat_ioctl,
+#endif
+	.bind		= sock_no_bind,
+	.getname	= sock_no_getname,
+	.sendmsg	= sock_no_sendmsg,
+	.recvmsg	= sock_no_recvmsg,
+	.poll		= sock_no_poll,
+	.listen		= sock_no_listen,
+	.shutdown	= sock_no_shutdown,
+	.setsockopt	= sock_no_setsockopt,
+	.getsockopt	= sock_no_getsockopt,
+	.connect	= sock_no_connect,
+	.socketpair	= sock_no_socketpair,
+	.accept		= sock_no_accept,
+	.mmap		= sock_no_mmap
+};
+
+static struct proto cmtp_proto = {
+	.name		= "CMTP",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct bt_sock)
+};
+
+static int cmtp_sock_create(struct net *net, struct socket *sock, int protocol,
+			    int kern)
+{
+	struct sock *sk;
+
+	BT_DBG("sock %p", sock);
+
+	if (sock->type != SOCK_RAW)
+		return -ESOCKTNOSUPPORT;
+
+	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &cmtp_proto);
+	if (!sk)
+		return -ENOMEM;
+
+	sock_init_data(sock, sk);
+
+	sock->ops = &cmtp_sock_ops;
+
+	sock->state = SS_UNCONNECTED;
+
+	sock_reset_flag(sk, SOCK_ZAPPED);
+
+	sk->sk_protocol = protocol;
+	sk->sk_state    = BT_OPEN;
+
+	return 0;
+}
+
+static const struct net_proto_family cmtp_sock_family_ops = {
+	.family	= PF_BLUETOOTH,
+	.owner	= THIS_MODULE,
+	.create	= cmtp_sock_create
+};
+
+int cmtp_init_sockets(void)
+{
+	int err;
+
+	err = proto_register(&cmtp_proto, 0);
+	if (err < 0)
+		return err;
+
+	err = bt_sock_register(BTPROTO_CMTP, &cmtp_sock_family_ops);
+	if (err < 0)
+		goto error;
+
+	return 0;
+
+error:
+	BT_ERR("Can't register CMTP socket");
+	proto_unregister(&cmtp_proto);
+	return err;
+}
+
+void cmtp_cleanup_sockets(void)
+{
+	if (bt_sock_unregister(BTPROTO_CMTP) < 0)
+		BT_ERR("Can't unregister CMTP socket");
+
+	proto_unregister(&cmtp_proto);
+}
diff --git a/net/bluetooth_tizen/hci_conn.c b/net/bluetooth_tizen/hci_conn.c
new file mode 100644
index 0000000..459227d
--- /dev/null
+++ b/net/bluetooth_tizen/hci_conn.c
@@ -0,0 +1,984 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth HCI connection handling. */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+#include <net/sock.h>
+
+#include <asm/system.h>
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+static void hci_le_connect(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_le_create_conn cp;
+
+	conn->state = BT_CONNECT;
+	conn->out = true;
+	conn->link_mode |= HCI_LM_MASTER;
+	conn->sec_level = BT_SECURITY_LOW;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.scan_interval = cpu_to_le16(0x0060);
+	cp.scan_window = cpu_to_le16(0x0030);
+	bacpy(&cp.peer_addr, &conn->dst);
+	cp.peer_addr_type = conn->dst_type;
+	cp.conn_interval_min = cpu_to_le16(0x0028);
+	cp.conn_interval_max = cpu_to_le16(0x0038);
+	cp.supervision_timeout = cpu_to_le16(0x002a);
+	cp.min_ce_len = cpu_to_le16(0x0000);
+	cp.max_ce_len = cpu_to_le16(0x0000);
+
+	hci_send_cmd(hdev, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp);
+}
+
+static void hci_le_connect_cancel(struct hci_conn *conn)
+{
+	hci_send_cmd(conn->hdev, HCI_OP_LE_CREATE_CONN_CANCEL, 0, NULL);
+}
+
+void hci_acl_connect(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct inquiry_entry *ie;
+	struct hci_cp_create_conn cp;
+
+	BT_DBG("hcon %p", conn);
+
+	conn->state = BT_CONNECT;
+	conn->out = true;
+
+	conn->link_mode = HCI_LM_MASTER;
+
+	conn->attempt++;
+
+	conn->link_policy = hdev->link_policy;
+
+	memset(&cp, 0, sizeof(cp));
+	bacpy(&cp.bdaddr, &conn->dst);
+	cp.pscan_rep_mode = 0x02;
+
+	ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
+	if (ie) {
+		if (inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) {
+			cp.pscan_rep_mode = ie->data.pscan_rep_mode;
+			cp.pscan_mode     = ie->data.pscan_mode;
+			cp.clock_offset   = ie->data.clock_offset |
+							cpu_to_le16(0x8000);
+		}
+
+		memcpy(conn->dev_class, ie->data.dev_class, 3);
+		if (ie->data.ssp_mode > 0)
+			set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
+	}
+
+	cp.pkt_type = cpu_to_le16(conn->pkt_type);
+	if (lmp_rswitch_capable(hdev) && !(hdev->link_mode & HCI_LM_MASTER))
+		cp.role_switch = 0x01;
+	else
+		cp.role_switch = 0x00;
+
+	hci_send_cmd(hdev, HCI_OP_CREATE_CONN, sizeof(cp), &cp);
+}
+
+static void hci_acl_connect_cancel(struct hci_conn *conn)
+{
+	struct hci_cp_create_conn_cancel cp;
+
+	BT_DBG("%p", conn);
+
+	if (conn->hdev->hci_ver < BLUETOOTH_VER_1_2)
+		return;
+
+	bacpy(&cp.bdaddr, &conn->dst);
+	hci_send_cmd(conn->hdev, HCI_OP_CREATE_CONN_CANCEL, sizeof(cp), &cp);
+}
+
+void hci_acl_disconn(struct hci_conn *conn, __u8 reason)
+{
+	struct hci_cp_disconnect cp;
+
+	BT_DBG("%p", conn);
+
+	conn->state = BT_DISCONN;
+
+	cp.handle = cpu_to_le16(conn->handle);
+	cp.reason = reason;
+	hci_send_cmd(conn->hdev, HCI_OP_DISCONNECT, sizeof(cp), &cp);
+}
+
+void hci_add_sco(struct hci_conn *conn, __u16 handle)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_add_sco cp;
+
+	BT_DBG("%p", conn);
+
+	conn->state = BT_CONNECT;
+	conn->out = true;
+
+	conn->attempt++;
+
+	cp.handle   = cpu_to_le16(handle);
+	cp.pkt_type = cpu_to_le16(conn->pkt_type);
+
+	hci_send_cmd(hdev, HCI_OP_ADD_SCO, sizeof(cp), &cp);
+}
+
+void hci_setup_sync(struct hci_conn *conn, __u16 handle)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_setup_sync_conn cp;
+
+	BT_DBG("%p", conn);
+
+	conn->state = BT_CONNECT;
+	conn->out = true;
+
+	conn->attempt++;
+
+	cp.handle   = cpu_to_le16(handle);
+	cp.pkt_type = cpu_to_le16(conn->pkt_type);
+
+	cp.tx_bandwidth   = cpu_to_le32(0x00001f40);
+	cp.rx_bandwidth   = cpu_to_le32(0x00001f40);
+	cp.max_latency    = cpu_to_le16(0xffff);
+	cp.voice_setting  = cpu_to_le16(hdev->voice_setting);
+	cp.retrans_effort = 0xff;
+
+	hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp);
+}
+
+void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
+					u16 latency, u16 to_multiplier)
+{
+	struct hci_cp_le_conn_update cp;
+	struct hci_dev *hdev = conn->hdev;
+
+	memset(&cp, 0, sizeof(cp));
+
+	cp.handle		= cpu_to_le16(conn->handle);
+	cp.conn_interval_min	= cpu_to_le16(min);
+	cp.conn_interval_max	= cpu_to_le16(max);
+	cp.conn_latency		= cpu_to_le16(latency);
+	cp.supervision_timeout	= cpu_to_le16(to_multiplier);
+	cp.min_ce_len		= cpu_to_le16(0x0001);
+	cp.max_ce_len		= cpu_to_le16(0x0001);
+
+	hci_send_cmd(hdev, HCI_OP_LE_CONN_UPDATE, sizeof(cp), &cp);
+}
+EXPORT_SYMBOL(hci_le_conn_update);
+
+void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
+							__u8 ltk[16])
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_le_start_enc cp;
+
+	BT_DBG("%p", conn);
+
+	memset(&cp, 0, sizeof(cp));
+
+	cp.handle = cpu_to_le16(conn->handle);
+	memcpy(cp.ltk, ltk, sizeof(cp.ltk));
+	cp.ediv = ediv;
+	memcpy(cp.rand, rand, sizeof(cp.rand));
+
+	hci_send_cmd(hdev, HCI_OP_LE_START_ENC, sizeof(cp), &cp);
+}
+EXPORT_SYMBOL(hci_le_start_enc);
+
+void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16])
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_le_ltk_reply cp;
+
+	BT_DBG("%p", conn);
+
+	memset(&cp, 0, sizeof(cp));
+
+	cp.handle = cpu_to_le16(conn->handle);
+	memcpy(cp.ltk, ltk, sizeof(ltk));
+
+	hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
+}
+EXPORT_SYMBOL(hci_le_ltk_reply);
+
+void hci_le_ltk_neg_reply(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_le_ltk_neg_reply cp;
+
+	BT_DBG("%p", conn);
+
+	memset(&cp, 0, sizeof(cp));
+
+	cp.handle = cpu_to_le16(conn->handle);
+
+	hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(cp), &cp);
+}
+
+/* Device _must_ be locked */
+void hci_sco_setup(struct hci_conn *conn, __u8 status)
+{
+	struct hci_conn *sco = conn->link;
+
+	BT_DBG("%p", conn);
+
+	if (!sco)
+		return;
+
+	if (!status) {
+		if (lmp_esco_capable(conn->hdev))
+			hci_setup_sync(sco, conn->handle);
+		else
+			hci_add_sco(sco, conn->handle);
+	} else {
+		hci_proto_connect_cfm(sco, status);
+		hci_conn_del(sco);
+	}
+}
+
+static void hci_conn_timeout(struct work_struct *work)
+{
+	struct hci_conn *conn = container_of(work, struct hci_conn,
+							disc_work.work);
+	__u8 reason;
+
+	BT_DBG("conn %p state %s", conn, state_to_string(conn->state));
+
+	if (atomic_read(&conn->refcnt))
+		return;
+
+	switch (conn->state) {
+	case BT_CONNECT:
+	case BT_CONNECT2:
+		if (conn->out) {
+			if (conn->type == ACL_LINK)
+				hci_acl_connect_cancel(conn);
+			else if (conn->type == LE_LINK)
+				hci_le_connect_cancel(conn);
+		}
+		break;
+	case BT_CONFIG:
+	case BT_CONNECTED:
+		reason = hci_proto_disconn_ind(conn);
+		hci_acl_disconn(conn, reason);
+		break;
+	default:
+		conn->state = BT_CLOSED;
+		break;
+	}
+}
+
+/* Enter sniff mode */
+static void hci_conn_enter_sniff_mode(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("conn %p mode %d", conn, conn->mode);
+
+	if (test_bit(HCI_RAW, &hdev->flags))
+		return;
+
+	if (!lmp_sniff_capable(hdev) || !lmp_sniff_capable(conn))
+		return;
+
+	if (conn->mode != HCI_CM_ACTIVE || !(conn->link_policy & HCI_LP_SNIFF))
+		return;
+
+	if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) {
+		struct hci_cp_sniff_subrate cp;
+		cp.handle             = cpu_to_le16(conn->handle);
+		cp.max_latency        = cpu_to_le16(0);
+		cp.min_remote_timeout = cpu_to_le16(0);
+		cp.min_local_timeout  = cpu_to_le16(0);
+		hci_send_cmd(hdev, HCI_OP_SNIFF_SUBRATE, sizeof(cp), &cp);
+	}
+
+	if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) {
+		struct hci_cp_sniff_mode cp;
+		cp.handle       = cpu_to_le16(conn->handle);
+		cp.max_interval = cpu_to_le16(hdev->sniff_max_interval);
+		cp.min_interval = cpu_to_le16(hdev->sniff_min_interval);
+		cp.attempt      = cpu_to_le16(4);
+		cp.timeout      = cpu_to_le16(1);
+		hci_send_cmd(hdev, HCI_OP_SNIFF_MODE, sizeof(cp), &cp);
+	}
+}
+
+static void hci_conn_idle(unsigned long arg)
+{
+	struct hci_conn *conn = (void *) arg;
+
+	BT_DBG("conn %p mode %d", conn, conn->mode);
+
+	hci_conn_enter_sniff_mode(conn);
+}
+
+static void hci_conn_auto_accept(unsigned long arg)
+{
+	struct hci_conn *conn = (void *) arg;
+	struct hci_dev *hdev = conn->hdev;
+
+	hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, sizeof(conn->dst),
+								&conn->dst);
+}
+
+struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
+{
+	struct hci_conn *conn;
+
+	BT_DBG("%s dst %s", hdev->name, batostr(dst));
+
+	conn = kzalloc(sizeof(struct hci_conn), GFP_KERNEL);
+	if (!conn)
+		return NULL;
+
+	bacpy(&conn->dst, dst);
+	conn->hdev  = hdev;
+	conn->type  = type;
+	conn->mode  = HCI_CM_ACTIVE;
+	conn->state = BT_OPEN;
+	conn->auth_type = HCI_AT_GENERAL_BONDING;
+	conn->io_capability = hdev->io_capability;
+	conn->remote_auth = 0xff;
+	conn->key_type = 0xff;
+
+	set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
+	conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+
+	switch (type) {
+	case ACL_LINK:
+		conn->pkt_type = hdev->pkt_type & ACL_PTYPE_MASK;
+		break;
+	case SCO_LINK:
+		if (lmp_esco_capable(hdev))
+			conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
+					(hdev->esco_type & EDR_ESCO_MASK);
+		else
+			conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK;
+		break;
+	case ESCO_LINK:
+		conn->pkt_type = hdev->esco_type & ~EDR_ESCO_MASK;
+		break;
+	}
+
+	skb_queue_head_init(&conn->data_q);
+
+	INIT_LIST_HEAD(&conn->chan_list);
+
+	INIT_DELAYED_WORK(&conn->disc_work, hci_conn_timeout);
+	setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn);
+	setup_timer(&conn->auto_accept_timer, hci_conn_auto_accept,
+							(unsigned long) conn);
+
+	atomic_set(&conn->refcnt, 0);
+
+	hci_dev_hold(hdev);
+
+	hci_conn_hash_add(hdev, conn);
+	if (hdev->notify)
+		hdev->notify(hdev, HCI_NOTIFY_CONN_ADD);
+
+	atomic_set(&conn->devref, 0);
+
+	hci_conn_init_sysfs(conn);
+
+	return conn;
+}
+
+int hci_conn_del(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("%s conn %p handle %d", hdev->name, conn, conn->handle);
+
+	del_timer(&conn->idle_timer);
+
+	cancel_delayed_work_sync(&conn->disc_work);
+
+	del_timer(&conn->auto_accept_timer);
+
+	if (conn->type == ACL_LINK) {
+		struct hci_conn *sco = conn->link;
+		if (sco)
+			sco->link = NULL;
+
+		/* Unacked frames */
+		hdev->acl_cnt += conn->sent;
+	} else if (conn->type == LE_LINK) {
+		if (hdev->le_pkts)
+			hdev->le_cnt += conn->sent;
+		else
+			hdev->acl_cnt += conn->sent;
+	} else {
+		struct hci_conn *acl = conn->link;
+		if (acl) {
+			acl->link = NULL;
+			hci_conn_put(acl);
+		}
+	}
+
+
+	hci_chan_list_flush(conn);
+
+	hci_conn_hash_del(hdev, conn);
+	if (hdev->notify)
+		hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
+
+	skb_queue_purge(&conn->data_q);
+
+	hci_conn_put_device(conn);
+
+	hci_dev_put(hdev);
+
+	if (conn->handle == 0)
+		kfree(conn);
+
+	return 0;
+}
+
+struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src)
+{
+	int use_src = bacmp(src, BDADDR_ANY);
+	struct hci_dev *hdev = NULL, *d;
+
+	BT_DBG("%s -> %s", batostr(src), batostr(dst));
+
+	read_lock(&hci_dev_list_lock);
+
+	list_for_each_entry(d, &hci_dev_list, list) {
+		if (!test_bit(HCI_UP, &d->flags) || test_bit(HCI_RAW, &d->flags))
+			continue;
+
+		/* Simple routing:
+		 *   No source address - find interface with bdaddr != dst
+		 *   Source address    - find interface with bdaddr == src
+		 */
+
+		if (use_src) {
+			if (!bacmp(&d->bdaddr, src)) {
+				hdev = d; break;
+			}
+		} else {
+			if (bacmp(&d->bdaddr, dst)) {
+				hdev = d; break;
+			}
+		}
+	}
+
+	if (hdev)
+		hdev = hci_dev_hold(hdev);
+
+	read_unlock(&hci_dev_list_lock);
+	return hdev;
+}
+EXPORT_SYMBOL(hci_get_route);
+
+/* Create SCO, ACL or LE connection.
+ * Device _must_ be locked */
+struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type)
+{
+	struct hci_conn *acl;
+	struct hci_conn *sco;
+	struct hci_conn *le;
+
+	BT_DBG("%s dst %s", hdev->name, batostr(dst));
+
+	if (type == LE_LINK) {
+		struct adv_entry *entry;
+
+		le = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst);
+		if (le)
+			return ERR_PTR(-EBUSY);
+
+		entry = hci_find_adv_entry(hdev, dst);
+		if (!entry)
+			return ERR_PTR(-EHOSTUNREACH);
+
+		le = hci_conn_add(hdev, LE_LINK, dst);
+		if (!le)
+			return ERR_PTR(-ENOMEM);
+
+		le->dst_type = entry->bdaddr_type;
+
+		hci_le_connect(le);
+
+		hci_conn_hold(le);
+
+		return le;
+	}
+
+	acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
+	if (!acl) {
+		acl = hci_conn_add(hdev, ACL_LINK, dst);
+		if (!acl)
+			return ERR_PTR(-ENOMEM);
+	}
+
+	hci_conn_hold(acl);
+
+	if (acl->state == BT_OPEN || acl->state == BT_CLOSED) {
+		acl->sec_level = BT_SECURITY_LOW;
+		acl->pending_sec_level = sec_level;
+		acl->auth_type = auth_type;
+		hci_acl_connect(acl);
+	}
+
+	if (type == ACL_LINK)
+		return acl;
+
+	sco = hci_conn_hash_lookup_ba(hdev, type, dst);
+	if (!sco) {
+		sco = hci_conn_add(hdev, type, dst);
+		if (!sco) {
+			hci_conn_put(acl);
+			return ERR_PTR(-ENOMEM);
+		}
+	}
+
+	acl->link = sco;
+	sco->link = acl;
+
+	hci_conn_hold(sco);
+
+	if (acl->state == BT_CONNECTED &&
+			(sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
+		set_bit(HCI_CONN_POWER_SAVE, &acl->flags);
+		hci_conn_enter_active_mode(acl, BT_POWER_FORCE_ACTIVE_ON);
+
+		if (test_bit(HCI_CONN_MODE_CHANGE_PEND, &acl->flags)) {
+			/* defer SCO setup until mode change completed */
+			set_bit(HCI_CONN_SCO_SETUP_PEND, &acl->flags);
+			return sco;
+		}
+
+		hci_sco_setup(acl, 0x00);
+	}
+
+	return sco;
+}
+EXPORT_SYMBOL(hci_connect);
+
+/* Check link security requirement */
+int hci_conn_check_link_mode(struct hci_conn *conn)
+{
+	BT_DBG("conn %p", conn);
+
+	if (hci_conn_ssp_enabled(conn) && !(conn->link_mode & HCI_LM_ENCRYPT))
+		return 0;
+
+	return 1;
+}
+EXPORT_SYMBOL(hci_conn_check_link_mode);
+
+/* Authenticate remote device */
+static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
+{
+	BT_DBG("conn %p", conn);
+
+	if (conn->pending_sec_level > sec_level)
+		sec_level = conn->pending_sec_level;
+
+	if (sec_level > conn->sec_level)
+		conn->pending_sec_level = sec_level;
+	else if (conn->link_mode & HCI_LM_AUTH)
+		return 1;
+
+	/* Make sure we preserve an existing MITM requirement*/
+	auth_type |= (conn->auth_type & 0x01);
+
+	conn->auth_type = auth_type;
+
+	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
+		struct hci_cp_auth_requested cp;
+
+		/* encrypt must be pending if auth is also pending */
+		set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
+
+		cp.handle = cpu_to_le16(conn->handle);
+		hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
+							sizeof(cp), &cp);
+		if (conn->key_type != 0xff)
+			set_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
+	}
+
+	return 0;
+}
+
+/* Encrypt the the link */
+static void hci_conn_encrypt(struct hci_conn *conn)
+{
+	BT_DBG("conn %p", conn);
+
+	if (!test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
+		struct hci_cp_set_conn_encrypt cp;
+		cp.handle  = cpu_to_le16(conn->handle);
+		cp.encrypt = 0x01;
+		hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
+									&cp);
+	}
+}
+
+/* Enable security */
+int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type)
+{
+	BT_DBG("conn %p", conn);
+
+	/* For sdp we don't need the link key. */
+	if (sec_level == BT_SECURITY_SDP)
+		return 1;
+
+	/* For non 2.1 devices and low security level we don't need the link
+	   key. */
+	if (sec_level == BT_SECURITY_LOW && !hci_conn_ssp_enabled(conn))
+		return 1;
+
+	/* For other security levels we need the link key. */
+	if (!(conn->link_mode & HCI_LM_AUTH))
+		goto auth;
+
+	/* An authenticated combination key has sufficient security for any
+	   security level. */
+	if (conn->key_type == HCI_LK_AUTH_COMBINATION)
+		goto encrypt;
+
+	/* An unauthenticated combination key has sufficient security for
+	   security level 1 and 2. */
+	if (conn->key_type == HCI_LK_UNAUTH_COMBINATION &&
+			(sec_level == BT_SECURITY_MEDIUM ||
+			sec_level == BT_SECURITY_LOW))
+		goto encrypt;
+
+	/* A combination key has always sufficient security for the security
+	   levels 1 or 2. High security level requires the combination key
+	   is generated using maximum PIN code length (16).
+	   For pre 2.1 units. */
+	if (conn->key_type == HCI_LK_COMBINATION &&
+			(sec_level != BT_SECURITY_HIGH ||
+			conn->pin_length == 16))
+		goto encrypt;
+
+auth:
+	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
+		return 0;
+
+	if (!hci_conn_auth(conn, sec_level, auth_type))
+		return 0;
+
+encrypt:
+	if (conn->link_mode & HCI_LM_ENCRYPT)
+		return 1;
+
+	hci_conn_encrypt(conn);
+	return 0;
+}
+EXPORT_SYMBOL(hci_conn_security);
+
+/* Check secure link requirement */
+int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level)
+{
+	BT_DBG("conn %p", conn);
+
+	if (sec_level != BT_SECURITY_HIGH)
+		return 1; /* Accept if non-secure is required */
+
+	if (conn->sec_level == BT_SECURITY_HIGH)
+		return 1;
+
+	return 0; /* Reject not secure link */
+}
+EXPORT_SYMBOL(hci_conn_check_secure);
+
+/* Change link key */
+int hci_conn_change_link_key(struct hci_conn *conn)
+{
+	BT_DBG("conn %p", conn);
+
+	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
+		struct hci_cp_change_conn_link_key cp;
+		cp.handle = cpu_to_le16(conn->handle);
+		hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY,
+							sizeof(cp), &cp);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(hci_conn_change_link_key);
+
+/* Switch role */
+int hci_conn_switch_role(struct hci_conn *conn, __u8 role)
+{
+	BT_DBG("conn %p", conn);
+
+	if (!role && conn->link_mode & HCI_LM_MASTER)
+		return 1;
+
+	if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->flags)) {
+		struct hci_cp_switch_role cp;
+		bacpy(&cp.bdaddr, &conn->dst);
+		cp.role = role;
+		hci_send_cmd(conn->hdev, HCI_OP_SWITCH_ROLE, sizeof(cp), &cp);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(hci_conn_switch_role);
+
+/* Enter active mode */
+void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("conn %p mode %d", conn, conn->mode);
+
+	if (test_bit(HCI_RAW, &hdev->flags))
+		return;
+
+	if (conn->mode != HCI_CM_SNIFF)
+		goto timer;
+
+	if (!test_bit(HCI_CONN_POWER_SAVE, &conn->flags) && !force_active)
+		goto timer;
+
+	if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) {
+		struct hci_cp_exit_sniff_mode cp;
+		cp.handle = cpu_to_le16(conn->handle);
+		hci_send_cmd(hdev, HCI_OP_EXIT_SNIFF_MODE, sizeof(cp), &cp);
+	}
+
+timer:
+	if (hdev->idle_timeout > 0)
+		mod_timer(&conn->idle_timer,
+			jiffies + msecs_to_jiffies(hdev->idle_timeout));
+}
+
+/* Drop all connection on the device */
+void hci_conn_hash_flush(struct hci_dev *hdev)
+{
+	struct hci_conn_hash *h = &hdev->conn_hash;
+	struct hci_conn *c, *n;
+
+	BT_DBG("hdev %s", hdev->name);
+
+	list_for_each_entry_safe(c, n, &h->list, list) {
+		c->state = BT_CLOSED;
+
+		hci_proto_disconn_cfm(c, HCI_ERROR_LOCAL_HOST_TERM);
+		hci_conn_del(c);
+	}
+}
+
+/* Check pending connect attempts */
+void hci_conn_check_pending(struct hci_dev *hdev)
+{
+	struct hci_conn *conn;
+
+	BT_DBG("hdev %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2);
+	if (conn)
+		hci_acl_connect(conn);
+
+	hci_dev_unlock(hdev);
+}
+
+void hci_conn_hold_device(struct hci_conn *conn)
+{
+	atomic_inc(&conn->devref);
+}
+EXPORT_SYMBOL(hci_conn_hold_device);
+
+void hci_conn_put_device(struct hci_conn *conn)
+{
+	if (atomic_dec_and_test(&conn->devref))
+		hci_conn_del_sysfs(conn);
+}
+EXPORT_SYMBOL(hci_conn_put_device);
+
+int hci_get_conn_list(void __user *arg)
+{
+	register struct hci_conn *c;
+	struct hci_conn_list_req req, *cl;
+	struct hci_conn_info *ci;
+	struct hci_dev *hdev;
+	int n = 0, size, err;
+
+	if (copy_from_user(&req, arg, sizeof(req)))
+		return -EFAULT;
+
+	if (!req.conn_num || req.conn_num > (PAGE_SIZE * 2) / sizeof(*ci))
+		return -EINVAL;
+
+	size = sizeof(req) + req.conn_num * sizeof(*ci);
+
+	cl = kmalloc(size, GFP_KERNEL);
+	if (!cl)
+		return -ENOMEM;
+
+	hdev = hci_dev_get(req.dev_id);
+	if (!hdev) {
+		kfree(cl);
+		return -ENODEV;
+	}
+
+	ci = cl->conn_info;
+
+	hci_dev_lock(hdev);
+	list_for_each_entry(c, &hdev->conn_hash.list, list) {
+		bacpy(&(ci + n)->bdaddr, &c->dst);
+		(ci + n)->handle = c->handle;
+		(ci + n)->type  = c->type;
+		(ci + n)->out   = c->out;
+		(ci + n)->state = c->state;
+		(ci + n)->link_mode = c->link_mode;
+		if (++n >= req.conn_num)
+			break;
+	}
+	hci_dev_unlock(hdev);
+
+	cl->dev_id = hdev->id;
+	cl->conn_num = n;
+	size = sizeof(req) + n * sizeof(*ci);
+
+	hci_dev_put(hdev);
+
+	err = copy_to_user(arg, cl, size);
+	kfree(cl);
+
+	return err ? -EFAULT : 0;
+}
+
+int hci_get_conn_info(struct hci_dev *hdev, void __user *arg)
+{
+	struct hci_conn_info_req req;
+	struct hci_conn_info ci;
+	struct hci_conn *conn;
+	char __user *ptr = arg + sizeof(req);
+
+	if (copy_from_user(&req, arg, sizeof(req)))
+		return -EFAULT;
+
+	hci_dev_lock(hdev);
+	conn = hci_conn_hash_lookup_ba(hdev, req.type, &req.bdaddr);
+	if (conn) {
+		bacpy(&ci.bdaddr, &conn->dst);
+		ci.handle = conn->handle;
+		ci.type  = conn->type;
+		ci.out   = conn->out;
+		ci.state = conn->state;
+		ci.link_mode = conn->link_mode;
+	}
+	hci_dev_unlock(hdev);
+
+	if (!conn)
+		return -ENOENT;
+
+	return copy_to_user(ptr, &ci, sizeof(ci)) ? -EFAULT : 0;
+}
+
+int hci_get_auth_info(struct hci_dev *hdev, void __user *arg)
+{
+	struct hci_auth_info_req req;
+	struct hci_conn *conn;
+
+	if (copy_from_user(&req, arg, sizeof(req)))
+		return -EFAULT;
+
+	hci_dev_lock(hdev);
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &req.bdaddr);
+	if (conn)
+		req.type = conn->auth_type;
+	hci_dev_unlock(hdev);
+
+	if (!conn)
+		return -ENOENT;
+
+	return copy_to_user(arg, &req, sizeof(req)) ? -EFAULT : 0;
+}
+
+struct hci_chan *hci_chan_create(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_chan *chan;
+
+	BT_DBG("%s conn %p", hdev->name, conn);
+
+	chan = kzalloc(sizeof(struct hci_chan), GFP_KERNEL);
+	if (!chan)
+		return NULL;
+
+	chan->conn = conn;
+	skb_queue_head_init(&chan->data_q);
+
+	list_add_rcu(&chan->list, &conn->chan_list);
+
+	return chan;
+}
+
+int hci_chan_del(struct hci_chan *chan)
+{
+	struct hci_conn *conn = chan->conn;
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("%s conn %p chan %p", hdev->name, conn, chan);
+
+	list_del_rcu(&chan->list);
+
+	synchronize_rcu();
+
+	skb_queue_purge(&chan->data_q);
+	kfree(chan);
+
+	return 0;
+}
+
+void hci_chan_list_flush(struct hci_conn *conn)
+{
+	struct hci_chan *chan, *n;
+
+	BT_DBG("conn %p", conn);
+
+	list_for_each_entry_safe(chan, n, &conn->chan_list, list)
+		hci_chan_del(chan);
+}
diff --git a/net/bluetooth_tizen/hci_core.c b/net/bluetooth_tizen/hci_core.c
new file mode 100644
index 0000000..1c69c54
--- /dev/null
+++ b/net/bluetooth_tizen/hci_core.c
@@ -0,0 +1,2966 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+   Copyright (C) 2011 ProFUSION Embedded Systems
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth HCI core. */
+
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/kmod.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+#include <linux/rfkill.h>
+#include <linux/timer.h>
+#include <linux/crypto.h>
+#include <net/sock.h>
+
+#include <asm/system.h>
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#define AUTO_OFF_TIMEOUT 2000
+
+static void hci_rx_work(struct work_struct *work);
+static void hci_cmd_work(struct work_struct *work);
+static void hci_tx_work(struct work_struct *work);
+
+/* HCI device list */
+LIST_HEAD(hci_dev_list);
+DEFINE_RWLOCK(hci_dev_list_lock);
+
+/* HCI callback list */
+LIST_HEAD(hci_cb_list);
+DEFINE_RWLOCK(hci_cb_list_lock);
+
+/* HCI notifiers list */
+static ATOMIC_NOTIFIER_HEAD(hci_notifier);
+
+/* ---- HCI notifications ---- */
+
+int hci_register_notifier(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_register(&hci_notifier, nb);
+}
+
+int hci_unregister_notifier(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_unregister(&hci_notifier, nb);
+}
+
+static void hci_notify(struct hci_dev *hdev, int event)
+{
+	atomic_notifier_call_chain(&hci_notifier, event, hdev);
+}
+
+/* ---- HCI requests ---- */
+
+void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result)
+{
+	BT_DBG("%s command 0x%04x result 0x%2.2x", hdev->name, cmd, result);
+
+	/* If this is the init phase check if the completed command matches
+	 * the last init command, and if not just return.
+	 */
+	if (test_bit(HCI_INIT, &hdev->flags) && hdev->init_last_cmd != cmd) {
+		struct hci_command_hdr *sent = (void *) hdev->sent_cmd->data;
+		struct sk_buff *skb;
+
+		/* Some CSR based controllers generate a spontaneous
+		 * reset complete event during init and any pending
+		 * command will never be completed. In such a case we
+		 * need to resend whatever was the last sent
+		 * command.
+		 */
+
+		if (cmd != HCI_OP_RESET || sent->opcode == HCI_OP_RESET)
+			return;
+
+		skb = skb_clone(hdev->sent_cmd, GFP_ATOMIC);
+		if (skb) {
+			skb_queue_head(&hdev->cmd_q, skb);
+			queue_work(hdev->workqueue, &hdev->cmd_work);
+		}
+
+		return;
+	}
+
+	if (hdev->req_status == HCI_REQ_PEND) {
+		hdev->req_result = result;
+		hdev->req_status = HCI_REQ_DONE;
+		wake_up_interruptible(&hdev->req_wait_q);
+	}
+}
+
+static void hci_req_cancel(struct hci_dev *hdev, int err)
+{
+	BT_DBG("%s err 0x%2.2x", hdev->name, err);
+
+	if (hdev->req_status == HCI_REQ_PEND) {
+		hdev->req_result = err;
+		hdev->req_status = HCI_REQ_CANCELED;
+		wake_up_interruptible(&hdev->req_wait_q);
+	}
+}
+
+/* Execute request and wait for completion. */
+static int __hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
+					unsigned long opt, __u32 timeout)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	int err = 0;
+
+	BT_DBG("%s start", hdev->name);
+
+	hdev->req_status = HCI_REQ_PEND;
+
+	add_wait_queue(&hdev->req_wait_q, &wait);
+	set_current_state(TASK_INTERRUPTIBLE);
+
+	req(hdev, opt);
+	schedule_timeout(timeout);
+
+	remove_wait_queue(&hdev->req_wait_q, &wait);
+
+	if (signal_pending(current))
+		return -EINTR;
+
+	switch (hdev->req_status) {
+	case HCI_REQ_DONE:
+		err = -bt_to_errno(hdev->req_result);
+		break;
+
+	case HCI_REQ_CANCELED:
+		err = -hdev->req_result;
+		break;
+
+	default:
+		err = -ETIMEDOUT;
+		break;
+	}
+
+	hdev->req_status = hdev->req_result = 0;
+
+	BT_DBG("%s end: err %d", hdev->name, err);
+
+	return err;
+}
+
+static inline int hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
+					unsigned long opt, __u32 timeout)
+{
+	int ret;
+
+	if (!test_bit(HCI_UP, &hdev->flags))
+		return -ENETDOWN;
+
+	/* Serialize all requests */
+	hci_req_lock(hdev);
+	ret = __hci_request(hdev, req, opt, timeout);
+	hci_req_unlock(hdev);
+
+	return ret;
+}
+
+static void hci_reset_req(struct hci_dev *hdev, unsigned long opt)
+{
+	BT_DBG("%s %ld", hdev->name, opt);
+
+	/* Reset device */
+	set_bit(HCI_RESET, &hdev->flags);
+	hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
+}
+
+static void bredr_init(struct hci_dev *hdev)
+{
+	struct hci_cp_delete_stored_link_key cp;
+	__le16 param;
+	__u8 flt_type;
+
+	hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_PACKET_BASED;
+
+	/* Mandatory initialization */
+
+	/* Reset */
+	if (!test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks)) {
+		set_bit(HCI_RESET, &hdev->flags);
+		hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
+	}
+
+	/* Read Local Supported Features */
+	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
+
+	/* Read Local Version */
+	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL);
+
+	/* Read Buffer Size (ACL mtu, max pkt, etc.) */
+	hci_send_cmd(hdev, HCI_OP_READ_BUFFER_SIZE, 0, NULL);
+
+	/* Read BD Address */
+	hci_send_cmd(hdev, HCI_OP_READ_BD_ADDR, 0, NULL);
+
+	/* Read Class of Device */
+	hci_send_cmd(hdev, HCI_OP_READ_CLASS_OF_DEV, 0, NULL);
+
+	/* Read Local Name */
+	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL);
+
+	/* Read Voice Setting */
+	hci_send_cmd(hdev, HCI_OP_READ_VOICE_SETTING, 0, NULL);
+
+	/* Optional initialization */
+
+	/* Clear Event Filters */
+	flt_type = HCI_FLT_CLEAR_ALL;
+	hci_send_cmd(hdev, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
+
+	/* Connection accept timeout ~20 secs */
+	param = cpu_to_le16(0x7d00);
+	hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
+
+	bacpy(&cp.bdaddr, BDADDR_ANY);
+	cp.delete_all = 1;
+	hci_send_cmd(hdev, HCI_OP_DELETE_STORED_LINK_KEY, sizeof(cp), &cp);
+}
+
+static void amp_init(struct hci_dev *hdev)
+{
+	hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_BLOCK_BASED;
+
+	/* Reset */
+	hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
+
+	/* Read Local Version */
+	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL);
+}
+
+static void hci_init_req(struct hci_dev *hdev, unsigned long opt)
+{
+	struct sk_buff *skb;
+
+	BT_DBG("%s %ld", hdev->name, opt);
+
+	/* Driver initialization */
+
+	/* Special commands */
+	while ((skb = skb_dequeue(&hdev->driver_init))) {
+		bt_cb(skb)->pkt_type = HCI_COMMAND_PKT;
+		skb->dev = (void *) hdev;
+
+		skb_queue_tail(&hdev->cmd_q, skb);
+		queue_work(hdev->workqueue, &hdev->cmd_work);
+	}
+	skb_queue_purge(&hdev->driver_init);
+
+	switch (hdev->dev_type) {
+	case HCI_BREDR:
+		bredr_init(hdev);
+		break;
+
+	case HCI_AMP:
+		amp_init(hdev);
+		break;
+
+	default:
+		BT_ERR("Unknown device type %d", hdev->dev_type);
+		break;
+	}
+
+}
+
+static void hci_le_init_req(struct hci_dev *hdev, unsigned long opt)
+{
+	BT_DBG("%s", hdev->name);
+
+	/* Read LE buffer size */
+	hci_send_cmd(hdev, HCI_OP_LE_READ_BUFFER_SIZE, 0, NULL);
+}
+
+static void hci_scan_req(struct hci_dev *hdev, unsigned long opt)
+{
+	__u8 scan = opt;
+
+	BT_DBG("%s %x", hdev->name, scan);
+
+	/* Inquiry and Page scans */
+	hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+}
+
+static void hci_auth_req(struct hci_dev *hdev, unsigned long opt)
+{
+	__u8 auth = opt;
+
+	BT_DBG("%s %x", hdev->name, auth);
+
+	/* Authentication */
+	hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, 1, &auth);
+}
+
+static void hci_encrypt_req(struct hci_dev *hdev, unsigned long opt)
+{
+	__u8 encrypt = opt;
+
+	BT_DBG("%s %x", hdev->name, encrypt);
+
+	/* Encryption */
+	hci_send_cmd(hdev, HCI_OP_WRITE_ENCRYPT_MODE, 1, &encrypt);
+}
+
+static void hci_linkpol_req(struct hci_dev *hdev, unsigned long opt)
+{
+	__le16 policy = cpu_to_le16(opt);
+
+	BT_DBG("%s %x", hdev->name, policy);
+
+	/* Default link policy */
+	hci_send_cmd(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, 2, &policy);
+}
+
+/* Get HCI device by index.
+ * Device is held on return. */
+struct hci_dev *hci_dev_get(int index)
+{
+	struct hci_dev *hdev = NULL, *d;
+
+	BT_DBG("%d", index);
+
+	if (index < 0)
+		return NULL;
+
+	read_lock(&hci_dev_list_lock);
+	list_for_each_entry(d, &hci_dev_list, list) {
+		if (d->id == index) {
+			hdev = hci_dev_hold(d);
+			break;
+		}
+	}
+	read_unlock(&hci_dev_list_lock);
+	return hdev;
+}
+
+/* ---- Inquiry support ---- */
+
+bool hci_discovery_active(struct hci_dev *hdev)
+{
+	struct discovery_state *discov = &hdev->discovery;
+
+	switch (discov->state) {
+	case DISCOVERY_FINDING:
+	case DISCOVERY_RESOLVING:
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+void hci_discovery_set_state(struct hci_dev *hdev, int state)
+{
+	BT_DBG("%s state %u -> %u", hdev->name, hdev->discovery.state, state);
+
+	if (hdev->discovery.state == state)
+		return;
+
+	switch (state) {
+	case DISCOVERY_STOPPED:
+		if (hdev->discovery.state != DISCOVERY_STARTING)
+			mgmt_discovering(hdev, 0);
+		hdev->discovery.type = 0;
+		break;
+	case DISCOVERY_STARTING:
+		break;
+	case DISCOVERY_FINDING:
+		mgmt_discovering(hdev, 1);
+		break;
+	case DISCOVERY_RESOLVING:
+		break;
+	case DISCOVERY_STOPPING:
+		break;
+	}
+
+	hdev->discovery.state = state;
+}
+
+static void inquiry_cache_flush(struct hci_dev *hdev)
+{
+	struct discovery_state *cache = &hdev->discovery;
+	struct inquiry_entry *p, *n;
+
+	list_for_each_entry_safe(p, n, &cache->all, all) {
+		list_del(&p->all);
+		kfree(p);
+	}
+
+	INIT_LIST_HEAD(&cache->unknown);
+	INIT_LIST_HEAD(&cache->resolve);
+}
+
+struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct discovery_state *cache = &hdev->discovery;
+	struct inquiry_entry *e;
+
+	BT_DBG("cache %p, %s", cache, batostr(bdaddr));
+
+	list_for_each_entry(e, &cache->all, all) {
+		if (!bacmp(&e->data.bdaddr, bdaddr))
+			return e;
+	}
+
+	return NULL;
+}
+
+struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
+						       bdaddr_t *bdaddr)
+{
+	struct discovery_state *cache = &hdev->discovery;
+	struct inquiry_entry *e;
+
+	BT_DBG("cache %p, %s", cache, batostr(bdaddr));
+
+	list_for_each_entry(e, &cache->unknown, list) {
+		if (!bacmp(&e->data.bdaddr, bdaddr))
+			return e;
+	}
+
+	return NULL;
+}
+
+struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
+						       bdaddr_t *bdaddr,
+						       int state)
+{
+	struct discovery_state *cache = &hdev->discovery;
+	struct inquiry_entry *e;
+
+	BT_DBG("cache %p bdaddr %s state %d", cache, batostr(bdaddr), state);
+
+	list_for_each_entry(e, &cache->resolve, list) {
+		if (!bacmp(bdaddr, BDADDR_ANY) && e->name_state == state)
+			return e;
+		if (!bacmp(&e->data.bdaddr, bdaddr))
+			return e;
+	}
+
+	return NULL;
+}
+
+void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
+				      struct inquiry_entry *ie)
+{
+	struct discovery_state *cache = &hdev->discovery;
+	struct list_head *pos = &cache->resolve;
+	struct inquiry_entry *p;
+
+	list_del(&ie->list);
+
+	list_for_each_entry(p, &cache->resolve, list) {
+		if (p->name_state != NAME_PENDING &&
+				abs(p->data.rssi) >= abs(ie->data.rssi))
+			break;
+		pos = &p->list;
+	}
+
+	list_add(&ie->list, pos);
+}
+
+bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
+			      bool name_known, bool *ssp)
+{
+	struct discovery_state *cache = &hdev->discovery;
+	struct inquiry_entry *ie;
+
+	BT_DBG("cache %p, %s", cache, batostr(&data->bdaddr));
+
+	if (ssp)
+		*ssp = data->ssp_mode;
+
+	ie = hci_inquiry_cache_lookup(hdev, &data->bdaddr);
+	if (ie) {
+		if (ie->data.ssp_mode && ssp)
+			*ssp = true;
+
+		if (ie->name_state == NAME_NEEDED &&
+						data->rssi != ie->data.rssi) {
+			ie->data.rssi = data->rssi;
+			hci_inquiry_cache_update_resolve(hdev, ie);
+		}
+
+		goto update;
+	}
+
+	/* Entry not in the cache. Add new one. */
+	ie = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC);
+	if (!ie)
+		return false;
+
+	list_add(&ie->all, &cache->all);
+
+	if (name_known) {
+		ie->name_state = NAME_KNOWN;
+	} else {
+		ie->name_state = NAME_NOT_KNOWN;
+		list_add(&ie->list, &cache->unknown);
+	}
+
+update:
+	if (name_known && ie->name_state != NAME_KNOWN &&
+					ie->name_state != NAME_PENDING) {
+		ie->name_state = NAME_KNOWN;
+		list_del(&ie->list);
+	}
+
+	memcpy(&ie->data, data, sizeof(*data));
+	ie->timestamp = jiffies;
+	cache->timestamp = jiffies;
+
+	if (ie->name_state == NAME_NOT_KNOWN)
+		return false;
+
+	return true;
+}
+
+static int inquiry_cache_dump(struct hci_dev *hdev, int num, __u8 *buf)
+{
+	struct discovery_state *cache = &hdev->discovery;
+	struct inquiry_info *info = (struct inquiry_info *) buf;
+	struct inquiry_entry *e;
+	int copied = 0;
+
+	list_for_each_entry(e, &cache->all, all) {
+		struct inquiry_data *data = &e->data;
+
+		if (copied >= num)
+			break;
+
+		bacpy(&info->bdaddr, &data->bdaddr);
+		info->pscan_rep_mode	= data->pscan_rep_mode;
+		info->pscan_period_mode	= data->pscan_period_mode;
+		info->pscan_mode	= data->pscan_mode;
+		memcpy(info->dev_class, data->dev_class, 3);
+		info->clock_offset	= data->clock_offset;
+
+		info++;
+		copied++;
+	}
+
+	BT_DBG("cache %p, copied %d", cache, copied);
+	return copied;
+}
+
+static void hci_inq_req(struct hci_dev *hdev, unsigned long opt)
+{
+	struct hci_inquiry_req *ir = (struct hci_inquiry_req *) opt;
+	struct hci_cp_inquiry cp;
+
+	BT_DBG("%s", hdev->name);
+
+	if (test_bit(HCI_INQUIRY, &hdev->flags))
+		return;
+
+	/* Start Inquiry */
+	memcpy(&cp.lap, &ir->lap, 3);
+	cp.length  = ir->length;
+	cp.num_rsp = ir->num_rsp;
+	hci_send_cmd(hdev, HCI_OP_INQUIRY, sizeof(cp), &cp);
+}
+
+int hci_inquiry(void __user *arg)
+{
+	__u8 __user *ptr = arg;
+	struct hci_inquiry_req ir;
+	struct hci_dev *hdev;
+	int err = 0, do_inquiry = 0, max_rsp;
+	long timeo;
+	__u8 *buf;
+
+	if (copy_from_user(&ir, ptr, sizeof(ir)))
+		return -EFAULT;
+
+	hdev = hci_dev_get(ir.dev_id);
+	if (!hdev)
+		return -ENODEV;
+
+	hci_dev_lock(hdev);
+	if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
+				inquiry_cache_empty(hdev) ||
+				ir.flags & IREQ_CACHE_FLUSH) {
+		inquiry_cache_flush(hdev);
+		do_inquiry = 1;
+	}
+	hci_dev_unlock(hdev);
+
+	timeo = ir.length * msecs_to_jiffies(2000);
+
+	if (do_inquiry) {
+		err = hci_request(hdev, hci_inq_req, (unsigned long)&ir, timeo);
+		if (err < 0)
+			goto done;
+	}
+
+	/* for unlimited number of responses we will use buffer with 255 entries */
+	max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp;
+
+	/* cache_dump can't sleep. Therefore we allocate temp buffer and then
+	 * copy it to the user space.
+	 */
+	buf = kmalloc(sizeof(struct inquiry_info) * max_rsp, GFP_KERNEL);
+	if (!buf) {
+		err = -ENOMEM;
+		goto done;
+	}
+
+	hci_dev_lock(hdev);
+	ir.num_rsp = inquiry_cache_dump(hdev, max_rsp, buf);
+	hci_dev_unlock(hdev);
+
+	BT_DBG("num_rsp %d", ir.num_rsp);
+
+	if (!copy_to_user(ptr, &ir, sizeof(ir))) {
+		ptr += sizeof(ir);
+		if (copy_to_user(ptr, buf, sizeof(struct inquiry_info) *
+					ir.num_rsp))
+			err = -EFAULT;
+	} else
+		err = -EFAULT;
+
+	kfree(buf);
+
+done:
+	hci_dev_put(hdev);
+	return err;
+}
+
+/* ---- HCI ioctl helpers ---- */
+
+int hci_dev_open(__u16 dev)
+{
+	struct hci_dev *hdev;
+	int ret = 0;
+
+	hdev = hci_dev_get(dev);
+	if (!hdev)
+		return -ENODEV;
+
+	BT_DBG("%s %p", hdev->name, hdev);
+
+	hci_req_lock(hdev);
+
+	if (test_bit(HCI_UNREGISTER, &hdev->dev_flags)) {
+		ret = -ENODEV;
+		goto done;
+	}
+
+	if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) {
+		ret = -ERFKILL;
+		goto done;
+	}
+
+	if (test_bit(HCI_UP, &hdev->flags)) {
+		ret = -EALREADY;
+		goto done;
+	}
+
+	if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
+		set_bit(HCI_RAW, &hdev->flags);
+
+	/* Treat all non BR/EDR controllers as raw devices if
+	   enable_hs is not set */
+	if (hdev->dev_type != HCI_BREDR && !enable_hs)
+		set_bit(HCI_RAW, &hdev->flags);
+
+	if (hdev->open(hdev)) {
+		ret = -EIO;
+		goto done;
+	}
+
+	if (!test_bit(HCI_RAW, &hdev->flags)) {
+		atomic_set(&hdev->cmd_cnt, 1);
+		set_bit(HCI_INIT, &hdev->flags);
+		hdev->init_last_cmd = 0;
+
+		ret = __hci_request(hdev, hci_init_req, 0,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+
+		if (lmp_host_le_capable(hdev))
+			ret = __hci_request(hdev, hci_le_init_req, 0,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+
+		clear_bit(HCI_INIT, &hdev->flags);
+	}
+
+	if (!ret) {
+		hci_dev_hold(hdev);
+		set_bit(HCI_UP, &hdev->flags);
+		hci_notify(hdev, HCI_DEV_UP);
+		if (!test_bit(HCI_SETUP, &hdev->dev_flags)) {
+			hci_dev_lock(hdev);
+			mgmt_powered(hdev, 1);
+			hci_dev_unlock(hdev);
+		}
+	} else {
+		/* Init failed, cleanup */
+		flush_work(&hdev->tx_work);
+		flush_work(&hdev->cmd_work);
+		flush_work(&hdev->rx_work);
+
+		skb_queue_purge(&hdev->cmd_q);
+		skb_queue_purge(&hdev->rx_q);
+
+		if (hdev->flush)
+			hdev->flush(hdev);
+
+		if (hdev->sent_cmd) {
+			kfree_skb(hdev->sent_cmd);
+			hdev->sent_cmd = NULL;
+		}
+
+		hdev->close(hdev);
+		hdev->flags = 0;
+	}
+
+done:
+	hci_req_unlock(hdev);
+	hci_dev_put(hdev);
+	return ret;
+}
+
+static int hci_dev_do_close(struct hci_dev *hdev)
+{
+	BT_DBG("%s %p", hdev->name, hdev);
+
+	cancel_work_sync(&hdev->le_scan);
+
+	hci_req_cancel(hdev, ENODEV);
+	hci_req_lock(hdev);
+
+	if (!test_and_clear_bit(HCI_UP, &hdev->flags)) {
+		del_timer_sync(&hdev->cmd_timer);
+		hci_req_unlock(hdev);
+		return 0;
+	}
+
+	/* Flush RX and TX works */
+	flush_work(&hdev->tx_work);
+	flush_work(&hdev->rx_work);
+
+	if (hdev->discov_timeout > 0) {
+		cancel_delayed_work(&hdev->discov_off);
+		hdev->discov_timeout = 0;
+		clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
+	}
+
+	if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
+		cancel_delayed_work(&hdev->service_cache);
+
+	cancel_delayed_work_sync(&hdev->le_scan_disable);
+
+	hci_dev_lock(hdev);
+	inquiry_cache_flush(hdev);
+	hci_conn_hash_flush(hdev);
+	hci_dev_unlock(hdev);
+
+	hci_notify(hdev, HCI_DEV_DOWN);
+
+	if (hdev->flush)
+		hdev->flush(hdev);
+
+	/* Reset device */
+	skb_queue_purge(&hdev->cmd_q);
+	atomic_set(&hdev->cmd_cnt, 1);
+	if (!test_bit(HCI_RAW, &hdev->flags) &&
+				test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks)) {
+		set_bit(HCI_INIT, &hdev->flags);
+		__hci_request(hdev, hci_reset_req, 0,
+					msecs_to_jiffies(250));
+		clear_bit(HCI_INIT, &hdev->flags);
+	}
+
+	/* flush cmd  work */
+	flush_work(&hdev->cmd_work);
+
+	/* Drop queues */
+	skb_queue_purge(&hdev->rx_q);
+	skb_queue_purge(&hdev->cmd_q);
+	skb_queue_purge(&hdev->raw_q);
+
+	/* Drop last sent command */
+	if (hdev->sent_cmd) {
+		del_timer_sync(&hdev->cmd_timer);
+		kfree_skb(hdev->sent_cmd);
+		hdev->sent_cmd = NULL;
+	}
+
+	/* After this point our queues are empty
+	 * and no tasks are scheduled. */
+	hdev->close(hdev);
+
+	if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
+		hci_dev_lock(hdev);
+		mgmt_powered(hdev, 0);
+		hci_dev_unlock(hdev);
+	}
+
+	/* Clear flags */
+	hdev->flags = 0;
+
+	memset(hdev->eir, 0, sizeof(hdev->eir));
+	memset(hdev->dev_class, 0, sizeof(hdev->dev_class));
+
+	hci_req_unlock(hdev);
+
+	hci_dev_put(hdev);
+	return 0;
+}
+
+int hci_dev_close(__u16 dev)
+{
+	struct hci_dev *hdev;
+	int err;
+
+	hdev = hci_dev_get(dev);
+	if (!hdev)
+		return -ENODEV;
+
+	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags))
+		cancel_delayed_work(&hdev->power_off);
+
+	err = hci_dev_do_close(hdev);
+
+	hci_dev_put(hdev);
+	return err;
+}
+
+int hci_dev_reset(__u16 dev)
+{
+	struct hci_dev *hdev;
+	int ret = 0;
+
+	hdev = hci_dev_get(dev);
+	if (!hdev)
+		return -ENODEV;
+
+	hci_req_lock(hdev);
+
+	if (!test_bit(HCI_UP, &hdev->flags))
+		goto done;
+
+	/* Drop queues */
+	skb_queue_purge(&hdev->rx_q);
+	skb_queue_purge(&hdev->cmd_q);
+
+	hci_dev_lock(hdev);
+	inquiry_cache_flush(hdev);
+	hci_conn_hash_flush(hdev);
+	hci_dev_unlock(hdev);
+
+	if (hdev->flush)
+		hdev->flush(hdev);
+
+	atomic_set(&hdev->cmd_cnt, 1);
+	hdev->acl_cnt = 0; hdev->sco_cnt = 0; hdev->le_cnt = 0;
+
+	if (!test_bit(HCI_RAW, &hdev->flags))
+		ret = __hci_request(hdev, hci_reset_req, 0,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+
+done:
+	hci_req_unlock(hdev);
+	hci_dev_put(hdev);
+	return ret;
+}
+
+int hci_dev_reset_stat(__u16 dev)
+{
+	struct hci_dev *hdev;
+	int ret = 0;
+
+	hdev = hci_dev_get(dev);
+	if (!hdev)
+		return -ENODEV;
+
+	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));
+
+	hci_dev_put(hdev);
+
+	return ret;
+}
+
+int hci_dev_cmd(unsigned int cmd, void __user *arg)
+{
+	struct hci_dev *hdev;
+	struct hci_dev_req dr;
+	int err = 0;
+
+	if (copy_from_user(&dr, arg, sizeof(dr)))
+		return -EFAULT;
+
+	hdev = hci_dev_get(dr.dev_id);
+	if (!hdev)
+		return -ENODEV;
+
+	switch (cmd) {
+	case HCISETAUTH:
+		err = hci_request(hdev, hci_auth_req, dr.dev_opt,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+		break;
+
+	case HCISETENCRYPT:
+		if (!lmp_encrypt_capable(hdev)) {
+			err = -EOPNOTSUPP;
+			break;
+		}
+
+		if (!test_bit(HCI_AUTH, &hdev->flags)) {
+			/* Auth must be enabled first */
+			err = hci_request(hdev, hci_auth_req, dr.dev_opt,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+			if (err)
+				break;
+		}
+
+		err = hci_request(hdev, hci_encrypt_req, dr.dev_opt,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+		break;
+
+	case HCISETSCAN:
+		err = hci_request(hdev, hci_scan_req, dr.dev_opt,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+		break;
+
+	case HCISETLINKPOL:
+		err = hci_request(hdev, hci_linkpol_req, dr.dev_opt,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
+		break;
+
+	case HCISETLINKMODE:
+		hdev->link_mode = ((__u16) dr.dev_opt) &
+					(HCI_LM_MASTER | HCI_LM_ACCEPT);
+		break;
+
+	case HCISETPTYPE:
+		hdev->pkt_type = (__u16) dr.dev_opt;
+		break;
+
+	case HCISETACLMTU:
+		hdev->acl_mtu  = *((__u16 *) &dr.dev_opt + 1);
+		hdev->acl_pkts = *((__u16 *) &dr.dev_opt + 0);
+		break;
+
+	case HCISETSCOMTU:
+		hdev->sco_mtu  = *((__u16 *) &dr.dev_opt + 1);
+		hdev->sco_pkts = *((__u16 *) &dr.dev_opt + 0);
+		break;
+
+	default:
+		err = -EINVAL;
+		break;
+	}
+
+	hci_dev_put(hdev);
+	return err;
+}
+
+int hci_get_dev_list(void __user *arg)
+{
+	struct hci_dev *hdev;
+	struct hci_dev_list_req *dl;
+	struct hci_dev_req *dr;
+	int n = 0, size, err;
+	__u16 dev_num;
+
+	if (get_user(dev_num, (__u16 __user *) arg))
+		return -EFAULT;
+
+	if (!dev_num || dev_num > (PAGE_SIZE * 2) / sizeof(*dr))
+		return -EINVAL;
+
+	size = sizeof(*dl) + dev_num * sizeof(*dr);
+
+	dl = kzalloc(size, GFP_KERNEL);
+	if (!dl)
+		return -ENOMEM;
+
+	dr = dl->dev_req;
+
+	read_lock(&hci_dev_list_lock);
+	list_for_each_entry(hdev, &hci_dev_list, list) {
+		if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags))
+			cancel_delayed_work(&hdev->power_off);
+
+		if (!test_bit(HCI_MGMT, &hdev->dev_flags))
+			set_bit(HCI_PAIRABLE, &hdev->dev_flags);
+
+		(dr + n)->dev_id  = hdev->id;
+		(dr + n)->dev_opt = hdev->flags;
+
+		if (++n >= dev_num)
+			break;
+	}
+	read_unlock(&hci_dev_list_lock);
+
+	dl->dev_num = n;
+	size = sizeof(*dl) + n * sizeof(*dr);
+
+	err = copy_to_user(arg, dl, size);
+	kfree(dl);
+
+	return err ? -EFAULT : 0;
+}
+
+int hci_get_dev_info(void __user *arg)
+{
+	struct hci_dev *hdev;
+	struct hci_dev_info di;
+	int err = 0;
+
+	if (copy_from_user(&di, arg, sizeof(di)))
+		return -EFAULT;
+
+	hdev = hci_dev_get(di.dev_id);
+	if (!hdev)
+		return -ENODEV;
+
+	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags))
+		cancel_delayed_work_sync(&hdev->power_off);
+
+	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
+		set_bit(HCI_PAIRABLE, &hdev->dev_flags);
+
+	strcpy(di.name, hdev->name);
+	di.bdaddr   = hdev->bdaddr;
+	di.type     = (hdev->bus & 0x0f) | (hdev->dev_type << 4);
+	di.flags    = hdev->flags;
+	di.pkt_type = hdev->pkt_type;
+	di.acl_mtu  = hdev->acl_mtu;
+	di.acl_pkts = hdev->acl_pkts;
+	di.sco_mtu  = hdev->sco_mtu;
+	di.sco_pkts = hdev->sco_pkts;
+	di.link_policy = hdev->link_policy;
+	di.link_mode   = hdev->link_mode;
+
+	memcpy(&di.stat, &hdev->stat, sizeof(di.stat));
+	memcpy(&di.features, &hdev->features, sizeof(di.features));
+
+	if (copy_to_user(arg, &di, sizeof(di)))
+		err = -EFAULT;
+
+	hci_dev_put(hdev);
+
+	return err;
+}
+
+/* ---- Interface to HCI drivers ---- */
+
+static int hci_rfkill_set_block(void *data, bool blocked)
+{
+	struct hci_dev *hdev = data;
+
+	BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked);
+
+	if (!blocked)
+		return 0;
+
+	hci_dev_do_close(hdev);
+
+	return 0;
+}
+
+static const struct rfkill_ops hci_rfkill_ops = {
+	.set_block = hci_rfkill_set_block,
+};
+
+/* Alloc HCI device */
+struct hci_dev *hci_alloc_dev(void)
+{
+	struct hci_dev *hdev;
+
+	hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL);
+	if (!hdev)
+		return NULL;
+
+	hci_init_sysfs(hdev);
+	skb_queue_head_init(&hdev->driver_init);
+
+	return hdev;
+}
+EXPORT_SYMBOL(hci_alloc_dev);
+
+/* Free HCI device */
+void hci_free_dev(struct hci_dev *hdev)
+{
+	skb_queue_purge(&hdev->driver_init);
+
+	/* will free via device release */
+	put_device(&hdev->dev);
+}
+EXPORT_SYMBOL(hci_free_dev);
+
+static void hci_power_on(struct work_struct *work)
+{
+	struct hci_dev *hdev = container_of(work, struct hci_dev, power_on);
+
+	BT_DBG("%s", hdev->name);
+
+	if (hci_dev_open(hdev->id) < 0)
+		return;
+
+	if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
+		schedule_delayed_work(&hdev->power_off,
+					msecs_to_jiffies(AUTO_OFF_TIMEOUT));
+
+	if (test_and_clear_bit(HCI_SETUP, &hdev->dev_flags))
+		mgmt_index_added(hdev);
+}
+
+static void hci_power_off(struct work_struct *work)
+{
+	struct hci_dev *hdev = container_of(work, struct hci_dev,
+							power_off.work);
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_do_close(hdev);
+}
+
+static void hci_discov_off(struct work_struct *work)
+{
+	struct hci_dev *hdev;
+	u8 scan = SCAN_PAGE;
+
+	hdev = container_of(work, struct hci_dev, discov_off.work);
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
+
+	hdev->discov_timeout = 0;
+
+	hci_dev_unlock(hdev);
+}
+
+int hci_uuids_clear(struct hci_dev *hdev)
+{
+	struct list_head *p, *n;
+
+	list_for_each_safe(p, n, &hdev->uuids) {
+		struct bt_uuid *uuid;
+
+		uuid = list_entry(p, struct bt_uuid, list);
+
+		list_del(p);
+		kfree(uuid);
+	}
+
+	return 0;
+}
+
+int hci_link_keys_clear(struct hci_dev *hdev)
+{
+	struct list_head *p, *n;
+
+	list_for_each_safe(p, n, &hdev->link_keys) {
+		struct link_key *key;
+
+		key = list_entry(p, struct link_key, list);
+
+		list_del(p);
+		kfree(key);
+	}
+
+	return 0;
+}
+
+int hci_smp_ltks_clear(struct hci_dev *hdev)
+{
+	struct smp_ltk *k, *tmp;
+
+	list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) {
+		list_del(&k->list);
+		kfree(k);
+	}
+
+	return 0;
+}
+
+struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct link_key *k;
+
+	list_for_each_entry(k, &hdev->link_keys, list)
+		if (bacmp(bdaddr, &k->bdaddr) == 0)
+			return k;
+
+	return NULL;
+}
+
+static bool hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn,
+						u8 key_type, u8 old_key_type)
+{
+	/* Legacy key */
+	if (key_type < 0x03)
+		return true;
+
+	/* Debug keys are insecure so don't store them persistently */
+	if (key_type == HCI_LK_DEBUG_COMBINATION)
+		return false;
+
+	/* Changed combination key and there's no previous one */
+	if (key_type == HCI_LK_CHANGED_COMBINATION && old_key_type == 0xff)
+		return false;
+
+	/* Security mode 3 case */
+	if (!conn)
+		return true;
+
+	/* Neither local nor remote side had no-bonding as requirement */
+	if (conn->auth_type > 0x01 && conn->remote_auth > 0x01)
+		return true;
+
+	/* Local side had dedicated bonding as requirement */
+	if (conn->auth_type == 0x02 || conn->auth_type == 0x03)
+		return true;
+
+	/* Remote side had dedicated bonding as requirement */
+	if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03)
+		return true;
+
+	/* If none of the above criteria match, then don't store the key
+	 * persistently */
+	return false;
+}
+
+struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8])
+{
+	struct smp_ltk *k;
+
+	list_for_each_entry(k, &hdev->long_term_keys, list) {
+		if (k->ediv != ediv ||
+				memcmp(rand, k->rand, sizeof(k->rand)))
+			continue;
+
+		return k;
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL(hci_find_ltk);
+
+struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				     u8 addr_type)
+{
+	struct smp_ltk *k;
+
+	list_for_each_entry(k, &hdev->long_term_keys, list)
+		if (addr_type == k->bdaddr_type &&
+					bacmp(bdaddr, &k->bdaddr) == 0)
+			return k;
+
+	return NULL;
+}
+EXPORT_SYMBOL(hci_find_ltk_by_addr);
+
+int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
+		     bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len)
+{
+	struct link_key *key, *old_key;
+	u8 old_key_type;
+	bool persistent;
+
+	old_key = hci_find_link_key(hdev, bdaddr);
+	if (old_key) {
+		old_key_type = old_key->type;
+		key = old_key;
+	} else {
+		old_key_type = conn ? conn->key_type : 0xff;
+		key = kzalloc(sizeof(*key), GFP_ATOMIC);
+		if (!key)
+			return -ENOMEM;
+		list_add(&key->list, &hdev->link_keys);
+	}
+
+	BT_DBG("%s key for %s type %u", hdev->name, batostr(bdaddr), type);
+
+	/* Some buggy controller combinations generate a changed
+	 * combination key for legacy pairing even when there's no
+	 * previous key */
+	if (type == HCI_LK_CHANGED_COMBINATION &&
+					(!conn || conn->remote_auth == 0xff) &&
+					old_key_type == 0xff) {
+		type = HCI_LK_COMBINATION;
+		if (conn)
+			conn->key_type = type;
+	}
+
+	bacpy(&key->bdaddr, bdaddr);
+	memcpy(key->val, val, 16);
+	key->pin_len = pin_len;
+
+	if (type == HCI_LK_CHANGED_COMBINATION)
+		key->type = old_key_type;
+	else
+		key->type = type;
+
+	if (!new_key)
+		return 0;
+
+	persistent = hci_persistent_key(hdev, conn, type, old_key_type);
+
+	mgmt_new_link_key(hdev, key, persistent);
+
+	if (conn)
+		conn->flush_key = !persistent;
+
+	return 0;
+}
+
+int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
+		int new_key, u8 authenticated, u8 tk[16], u8 enc_size, u16
+		ediv, u8 rand[8])
+{
+	struct smp_ltk *key, *old_key;
+
+	if (!(type & HCI_SMP_STK) && !(type & HCI_SMP_LTK))
+		return 0;
+
+	old_key = hci_find_ltk_by_addr(hdev, bdaddr, addr_type);
+	if (old_key)
+		key = old_key;
+	else {
+		key = kzalloc(sizeof(*key), GFP_ATOMIC);
+		if (!key)
+			return -ENOMEM;
+		list_add(&key->list, &hdev->long_term_keys);
+	}
+
+	bacpy(&key->bdaddr, bdaddr);
+	key->bdaddr_type = addr_type;
+	memcpy(key->val, tk, sizeof(key->val));
+	key->authenticated = authenticated;
+	key->ediv = ediv;
+	key->enc_size = enc_size;
+	key->type = type;
+	memcpy(key->rand, rand, sizeof(key->rand));
+
+	if (!new_key)
+		return 0;
+
+	if (type & HCI_SMP_LTK)
+		mgmt_new_ltk(hdev, key, 1);
+
+	return 0;
+}
+
+int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct link_key *key;
+
+	key = hci_find_link_key(hdev, bdaddr);
+	if (!key)
+		return -ENOENT;
+
+	BT_DBG("%s removing %s", hdev->name, batostr(bdaddr));
+
+	list_del(&key->list);
+	kfree(key);
+
+	return 0;
+}
+
+int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct smp_ltk *k, *tmp;
+
+	list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) {
+		if (bacmp(bdaddr, &k->bdaddr))
+			continue;
+
+		BT_DBG("%s removing %s", hdev->name, batostr(bdaddr));
+
+		list_del(&k->list);
+		kfree(k);
+	}
+
+	return 0;
+}
+
+/* HCI command timer function */
+static void hci_cmd_timer(unsigned long arg)
+{
+	struct hci_dev *hdev = (void *) arg;
+
+	BT_ERR("%s command tx timeout", hdev->name);
+	atomic_set(&hdev->cmd_cnt, 1);
+	queue_work(hdev->workqueue, &hdev->cmd_work);
+}
+
+struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
+					  bdaddr_t *bdaddr)
+{
+	struct oob_data *data;
+
+	list_for_each_entry(data, &hdev->remote_oob_data, list)
+		if (bacmp(bdaddr, &data->bdaddr) == 0)
+			return data;
+
+	return NULL;
+}
+
+int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct oob_data *data;
+
+	data = hci_find_remote_oob_data(hdev, bdaddr);
+	if (!data)
+		return -ENOENT;
+
+	BT_DBG("%s removing %s", hdev->name, batostr(bdaddr));
+
+	list_del(&data->list);
+	kfree(data);
+
+	return 0;
+}
+
+int hci_remote_oob_data_clear(struct hci_dev *hdev)
+{
+	struct oob_data *data, *n;
+
+	list_for_each_entry_safe(data, n, &hdev->remote_oob_data, list) {
+		list_del(&data->list);
+		kfree(data);
+	}
+
+	return 0;
+}
+
+int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
+			    u8 *randomizer)
+{
+	struct oob_data *data;
+
+	data = hci_find_remote_oob_data(hdev, bdaddr);
+
+	if (!data) {
+		data = kmalloc(sizeof(*data), GFP_ATOMIC);
+		if (!data)
+			return -ENOMEM;
+
+		bacpy(&data->bdaddr, bdaddr);
+		list_add(&data->list, &hdev->remote_oob_data);
+	}
+
+	memcpy(data->hash, hash, sizeof(data->hash));
+	memcpy(data->randomizer, randomizer, sizeof(data->randomizer));
+
+	BT_DBG("%s for %s", hdev->name, batostr(bdaddr));
+
+	return 0;
+}
+
+struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct bdaddr_list *b;
+
+	list_for_each_entry(b, &hdev->blacklist, list)
+		if (bacmp(bdaddr, &b->bdaddr) == 0)
+			return b;
+
+	return NULL;
+}
+
+int hci_blacklist_clear(struct hci_dev *hdev)
+{
+	struct list_head *p, *n;
+
+	list_for_each_safe(p, n, &hdev->blacklist) {
+		struct bdaddr_list *b;
+
+		b = list_entry(p, struct bdaddr_list, list);
+
+		list_del(p);
+		kfree(b);
+	}
+
+	return 0;
+}
+
+int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
+{
+	struct bdaddr_list *entry;
+
+	if (bacmp(bdaddr, BDADDR_ANY) == 0)
+		return -EBADF;
+
+	if (hci_blacklist_lookup(hdev, bdaddr))
+		return -EEXIST;
+
+	entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL);
+	if (!entry)
+		return -ENOMEM;
+
+	bacpy(&entry->bdaddr, bdaddr);
+
+	list_add(&entry->list, &hdev->blacklist);
+
+	return mgmt_device_blocked(hdev, bdaddr, type);
+}
+
+int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
+{
+	struct bdaddr_list *entry;
+
+	if (bacmp(bdaddr, BDADDR_ANY) == 0)
+		return hci_blacklist_clear(hdev);
+
+	entry = hci_blacklist_lookup(hdev, bdaddr);
+	if (!entry)
+		return -ENOENT;
+
+	list_del(&entry->list);
+	kfree(entry);
+
+	return mgmt_device_unblocked(hdev, bdaddr, type);
+}
+
+static void hci_clear_adv_cache(struct work_struct *work)
+{
+	struct hci_dev *hdev = container_of(work, struct hci_dev,
+					    adv_work.work);
+
+	hci_dev_lock(hdev);
+
+	hci_adv_entries_clear(hdev);
+
+	hci_dev_unlock(hdev);
+}
+
+int hci_adv_entries_clear(struct hci_dev *hdev)
+{
+	struct adv_entry *entry, *tmp;
+
+	list_for_each_entry_safe(entry, tmp, &hdev->adv_entries, list) {
+		list_del(&entry->list);
+		kfree(entry);
+	}
+
+	BT_DBG("%s adv cache cleared", hdev->name);
+
+	return 0;
+}
+
+struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	struct adv_entry *entry;
+
+	list_for_each_entry(entry, &hdev->adv_entries, list)
+		if (bacmp(bdaddr, &entry->bdaddr) == 0)
+			return entry;
+
+	return NULL;
+}
+
+static inline int is_connectable_adv(u8 evt_type)
+{
+	if (evt_type == ADV_IND || evt_type == ADV_DIRECT_IND)
+		return 1;
+
+	return 0;
+}
+
+int hci_add_adv_entry(struct hci_dev *hdev,
+					struct hci_ev_le_advertising_info *ev) { struct adv_entry *entry; if (!is_connectable_adv(ev->evt_type))
+		return -EINVAL;
+
+	/* Only new entries should be added to adv_entries. So, if
+	 * bdaddr was found, don't add it. */
+	if (hci_find_adv_entry(hdev, &ev->bdaddr))
+		return 0;
+
+	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+	if (!entry)
+		return -ENOMEM;
+
+	bacpy(&entry->bdaddr, &ev->bdaddr);
+	entry->bdaddr_type = ev->bdaddr_type;
+
+	list_add(&entry->list, &hdev->adv_entries);
+
+	BT_DBG("%s adv entry added: address %s type %u", hdev->name,
+				batostr(&entry->bdaddr), entry->bdaddr_type);
+
+	return 0;
+}
+
+static void le_scan_param_req(struct hci_dev *hdev, unsigned long opt)
+{
+	struct le_scan_params *param =  (struct le_scan_params *) opt;
+	struct hci_cp_le_set_scan_param cp;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.type = param->type;
+	cp.interval = cpu_to_le16(param->interval);
+	cp.window = cpu_to_le16(param->window);
+
+	hci_send_cmd(hdev, HCI_OP_LE_SET_SCAN_PARAM, sizeof(cp), &cp);
+}
+
+static void le_scan_enable_req(struct hci_dev *hdev, unsigned long opt)
+{
+	struct hci_cp_le_set_scan_enable cp;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.enable = 1;
+
+	hci_send_cmd(hdev, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
+}
+
+static int hci_do_le_scan(struct hci_dev *hdev, u8 type, u16 interval,
+			  u16 window, int timeout)
+{
+	long timeo = msecs_to_jiffies(3000);
+	struct le_scan_params param;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	if (test_bit(HCI_LE_SCAN, &hdev->dev_flags))
+		return -EINPROGRESS;
+
+	param.type = type;
+	param.interval = interval;
+	param.window = window;
+
+	hci_req_lock(hdev);
+
+	err = __hci_request(hdev, le_scan_param_req, (unsigned long) &param,
+			    timeo);
+	if (!err)
+		err = __hci_request(hdev, le_scan_enable_req, 0, timeo);
+
+	hci_req_unlock(hdev);
+
+	if (err < 0)
+		return err;
+
+	schedule_delayed_work(&hdev->le_scan_disable,
+			      msecs_to_jiffies(timeout));
+
+	return 0;
+}
+
+static void le_scan_disable_work(struct work_struct *work)
+{
+	struct hci_dev *hdev = container_of(work, struct hci_dev,
+					    le_scan_disable.work);
+	struct hci_cp_le_set_scan_enable cp;
+
+	BT_DBG("%s", hdev->name);
+
+	memset(&cp, 0, sizeof(cp));
+
+	hci_send_cmd(hdev, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
+}
+
+static void le_scan_work(struct work_struct *work)
+{
+	struct hci_dev *hdev = container_of(work, struct hci_dev, le_scan);
+	struct le_scan_params *param = &hdev->le_scan_params;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_do_le_scan(hdev, param->type, param->interval, param->window,
+		       param->timeout);
+}
+
+int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
+		int timeout)
+{
+	struct le_scan_params *param = &hdev->le_scan_params;
+
+	BT_DBG("%s", hdev->name);
+
+	if (work_busy(&hdev->le_scan))
+		return -EINPROGRESS;
+
+	param->type = type;
+	param->interval = interval;
+	param->window = window;
+	param->timeout = timeout;
+
+	queue_work(system_long_wq, &hdev->le_scan);
+
+	return 0;
+}
+
+/* Register HCI device */
+int hci_register_dev(struct hci_dev *hdev)
+{
+	struct list_head *head = &hci_dev_list, *p;
+	int i, id, error;
+
+	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
+
+	if (!hdev->open || !hdev->close)
+		return -EINVAL;
+
+	/* Do not allow HCI_AMP devices to register at index 0,
+	 * so the index can be used as the AMP controller ID.
+	 */
+	id = (hdev->dev_type == HCI_BREDR) ? 0 : 1;
+
+	write_lock(&hci_dev_list_lock);
+
+	/* Find first available device id */
+	list_for_each(p, &hci_dev_list) {
+		if (list_entry(p, struct hci_dev, list)->id != id)
+			break;
+		head = p; id++;
+	}
+
+	sprintf(hdev->name, "hci%d", id);
+	hdev->id = id;
+	list_add_tail(&hdev->list, head);
+
+	mutex_init(&hdev->lock);
+
+	hdev->flags = 0;
+	hdev->dev_flags = 0;
+	hdev->pkt_type  = (HCI_DM1 | HCI_DH1 | HCI_HV1);
+	hdev->esco_type = (ESCO_HV1);
+	hdev->link_mode = (HCI_LM_ACCEPT);
+	hdev->io_capability = 0x03; /* No Input No Output */
+
+	hdev->idle_timeout = 0;
+	hdev->sniff_max_interval = 800;
+	hdev->sniff_min_interval = 80;
+
+	INIT_WORK(&hdev->rx_work, hci_rx_work);
+	INIT_WORK(&hdev->cmd_work, hci_cmd_work);
+	INIT_WORK(&hdev->tx_work, hci_tx_work);
+
+
+	skb_queue_head_init(&hdev->rx_q);
+	skb_queue_head_init(&hdev->cmd_q);
+	skb_queue_head_init(&hdev->raw_q);
+
+	setup_timer(&hdev->cmd_timer, hci_cmd_timer, (unsigned long) hdev);
+
+	for (i = 0; i < NUM_REASSEMBLY; i++)
+		hdev->reassembly[i] = NULL;
+
+	init_waitqueue_head(&hdev->req_wait_q);
+	mutex_init(&hdev->req_lock);
+
+	discovery_init(hdev);
+
+	hci_conn_hash_init(hdev);
+
+	INIT_LIST_HEAD(&hdev->mgmt_pending);
+
+	INIT_LIST_HEAD(&hdev->blacklist);
+
+	INIT_LIST_HEAD(&hdev->uuids);
+
+	INIT_LIST_HEAD(&hdev->link_keys);
+	INIT_LIST_HEAD(&hdev->long_term_keys);
+
+	INIT_LIST_HEAD(&hdev->remote_oob_data);
+
+	INIT_LIST_HEAD(&hdev->adv_entries);
+
+	INIT_DELAYED_WORK(&hdev->adv_work, hci_clear_adv_cache);
+	INIT_WORK(&hdev->power_on, hci_power_on);
+	INIT_DELAYED_WORK(&hdev->power_off, hci_power_off);
+
+	INIT_DELAYED_WORK(&hdev->discov_off, hci_discov_off);
+
+	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));
+
+	atomic_set(&hdev->promisc, 0);
+
+	INIT_WORK(&hdev->le_scan, le_scan_work);
+
+	INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work);
+
+	write_unlock(&hci_dev_list_lock);
+
+	hdev->workqueue = alloc_workqueue(hdev->name, WQ_HIGHPRI | WQ_UNBOUND |
+							WQ_MEM_RECLAIM, 1);
+	if (!hdev->workqueue) {
+		error = -ENOMEM;
+		goto err;
+	}
+
+	error = hci_add_sysfs(hdev);
+	if (error < 0)
+		goto err_wqueue;
+
+	hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
+				RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, hdev);
+	if (hdev->rfkill) {
+		if (rfkill_register(hdev->rfkill) < 0) {
+			rfkill_destroy(hdev->rfkill);
+			hdev->rfkill = NULL;
+		}
+	}
+
+	set_bit(HCI_AUTO_OFF, &hdev->dev_flags);
+	set_bit(HCI_SETUP, &hdev->dev_flags);
+	schedule_work(&hdev->power_on);
+
+	hci_notify(hdev, HCI_DEV_REG);
+	hci_dev_hold(hdev);
+
+	return id;
+
+err_wqueue:
+	destroy_workqueue(hdev->workqueue);
+err:
+	write_lock(&hci_dev_list_lock);
+	list_del(&hdev->list);
+	write_unlock(&hci_dev_list_lock);
+
+	return error;
+}
+EXPORT_SYMBOL(hci_register_dev);
+
+/* Unregister HCI device */
+void hci_unregister_dev(struct hci_dev *hdev)
+{
+	int i;
+
+	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
+
+	set_bit(HCI_UNREGISTER, &hdev->dev_flags);
+
+	write_lock(&hci_dev_list_lock);
+	list_del(&hdev->list);
+	write_unlock(&hci_dev_list_lock);
+
+	hci_dev_do_close(hdev);
+
+	for (i = 0; i < NUM_REASSEMBLY; i++)
+		kfree_skb(hdev->reassembly[i]);
+
+	if (!test_bit(HCI_INIT, &hdev->flags) &&
+				!test_bit(HCI_SETUP, &hdev->dev_flags)) {
+		hci_dev_lock(hdev);
+		mgmt_index_removed(hdev);
+		hci_dev_unlock(hdev);
+	}
+
+	/* mgmt_index_removed should take care of emptying the
+	 * pending list */
+	BUG_ON(!list_empty(&hdev->mgmt_pending));
+
+	hci_notify(hdev, HCI_DEV_UNREG);
+
+	if (hdev->rfkill) {
+		rfkill_unregister(hdev->rfkill);
+		rfkill_destroy(hdev->rfkill);
+	}
+
+	hci_del_sysfs(hdev);
+
+	cancel_delayed_work_sync(&hdev->adv_work);
+
+	destroy_workqueue(hdev->workqueue);
+
+	hci_dev_lock(hdev);
+	hci_blacklist_clear(hdev);
+	hci_uuids_clear(hdev);
+	hci_link_keys_clear(hdev);
+	hci_smp_ltks_clear(hdev);
+	hci_remote_oob_data_clear(hdev);
+	hci_adv_entries_clear(hdev);
+	hci_dev_unlock(hdev);
+
+	hci_dev_put(hdev);
+}
+EXPORT_SYMBOL(hci_unregister_dev);
+
+/* Suspend HCI device */
+int hci_suspend_dev(struct hci_dev *hdev)
+{
+	hci_notify(hdev, HCI_DEV_SUSPEND);
+	return 0;
+}
+EXPORT_SYMBOL(hci_suspend_dev);
+
+/* Resume HCI device */
+int hci_resume_dev(struct hci_dev *hdev)
+{
+	hci_notify(hdev, HCI_DEV_RESUME);
+	return 0;
+}
+EXPORT_SYMBOL(hci_resume_dev);
+
+/* Receive frame from HCI drivers */
+int hci_recv_frame(struct sk_buff *skb)
+{
+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+	if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
+				&& !test_bit(HCI_INIT, &hdev->flags))) {
+		kfree_skb(skb);
+		return -ENXIO;
+	}
+
+	/* Incomming skb */
+	bt_cb(skb)->incoming = 1;
+
+	/* Time stamp */
+	__net_timestamp(skb);
+
+	skb_queue_tail(&hdev->rx_q, skb);
+	queue_work(hdev->workqueue, &hdev->rx_work);
+
+	return 0;
+}
+EXPORT_SYMBOL(hci_recv_frame);
+
+static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
+						  int count, __u8 index)
+{
+	int len = 0;
+	int hlen = 0;
+	int remain = count;
+	struct sk_buff *skb;
+	struct bt_skb_cb *scb;
+
+	if ((type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) ||
+				index >= NUM_REASSEMBLY)
+		return -EILSEQ;
+
+	skb = hdev->reassembly[index];
+
+	if (!skb) {
+		switch (type) {
+		case HCI_ACLDATA_PKT:
+			len = HCI_MAX_FRAME_SIZE;
+			hlen = HCI_ACL_HDR_SIZE;
+			break;
+		case HCI_EVENT_PKT:
+			len = HCI_MAX_EVENT_SIZE;
+			hlen = HCI_EVENT_HDR_SIZE;
+			break;
+		case HCI_SCODATA_PKT:
+			len = HCI_MAX_SCO_SIZE;
+			hlen = HCI_SCO_HDR_SIZE;
+			break;
+		}
+
+		skb = bt_skb_alloc(len, GFP_ATOMIC);
+		if (!skb)
+			return -ENOMEM;
+
+		scb = (void *) skb->cb;
+		scb->expect = hlen;
+		scb->pkt_type = type;
+
+		skb->dev = (void *) hdev;
+		hdev->reassembly[index] = skb;
+	}
+
+	while (count) {
+		scb = (void *) skb->cb;
+		len = min_t(uint, scb->expect, count);
+
+		memcpy(skb_put(skb, len), data, len);
+
+		count -= len;
+		data += len;
+		scb->expect -= len;
+		remain = count;
+
+		switch (type) {
+		case HCI_EVENT_PKT:
+			if (skb->len == HCI_EVENT_HDR_SIZE) {
+				struct hci_event_hdr *h = hci_event_hdr(skb);
+				scb->expect = h->plen;
+
+				if (skb_tailroom(skb) < scb->expect) {
+					kfree_skb(skb);
+					hdev->reassembly[index] = NULL;
+					return -ENOMEM;
+				}
+			}
+			break;
+
+		case HCI_ACLDATA_PKT:
+			if (skb->len  == HCI_ACL_HDR_SIZE) {
+				struct hci_acl_hdr *h = hci_acl_hdr(skb);
+				scb->expect = __le16_to_cpu(h->dlen);
+
+				if (skb_tailroom(skb) < scb->expect) {
+					kfree_skb(skb);
+					hdev->reassembly[index] = NULL;
+					return -ENOMEM;
+				}
+			}
+			break;
+
+		case HCI_SCODATA_PKT:
+			if (skb->len == HCI_SCO_HDR_SIZE) {
+				struct hci_sco_hdr *h = hci_sco_hdr(skb);
+				scb->expect = h->dlen;
+
+				if (skb_tailroom(skb) < scb->expect) {
+					kfree_skb(skb);
+					hdev->reassembly[index] = NULL;
+					return -ENOMEM;
+				}
+			}
+			break;
+		}
+
+		if (scb->expect == 0) {
+			/* Complete frame */
+
+			bt_cb(skb)->pkt_type = type;
+			hci_recv_frame(skb);
+
+			hdev->reassembly[index] = NULL;
+			return remain;
+		}
+	}
+
+	return remain;
+}
+
+int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)
+{
+	int rem = 0;
+
+	if (type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT)
+		return -EILSEQ;
+
+	while (count) {
+		rem = hci_reassembly(hdev, type, data, count, type - 1);
+		if (rem < 0)
+			return rem;
+
+		data += (count - rem);
+		count = rem;
+	}
+
+	return rem;
+}
+EXPORT_SYMBOL(hci_recv_fragment);
+
+#define STREAM_REASSEMBLY 0
+
+int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count)
+{
+	int type;
+	int rem = 0;
+
+	while (count) {
+		struct sk_buff *skb = hdev->reassembly[STREAM_REASSEMBLY];
+
+		if (!skb) {
+			struct { char type; } *pkt;
+
+			/* Start of the frame */
+			pkt = data;
+			type = pkt->type;
+
+			data++;
+			count--;
+		} else
+			type = bt_cb(skb)->pkt_type;
+
+		rem = hci_reassembly(hdev, type, data, count,
+							STREAM_REASSEMBLY);
+		if (rem < 0)
+			return rem;
+
+		data += (count - rem);
+		count = rem;
+	}
+
+	return rem;
+}
+EXPORT_SYMBOL(hci_recv_stream_fragment);
+
+/* ---- Interface to upper protocols ---- */
+
+int hci_register_cb(struct hci_cb *cb)
+{
+	BT_DBG("%p name %s", cb, cb->name);
+
+	write_lock(&hci_cb_list_lock);
+	list_add(&cb->list, &hci_cb_list);
+	write_unlock(&hci_cb_list_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL(hci_register_cb);
+
+int hci_unregister_cb(struct hci_cb *cb)
+{
+	BT_DBG("%p name %s", cb, cb->name);
+
+	write_lock(&hci_cb_list_lock);
+	list_del(&cb->list);
+	write_unlock(&hci_cb_list_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL(hci_unregister_cb);
+
+static int hci_send_frame(struct sk_buff *skb)
+{
+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+
+	if (!hdev) {
+		kfree_skb(skb);
+		return -ENODEV;
+	}
+
+	BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
+
+	/* Time stamp */
+	__net_timestamp(skb);
+
+	/* Send copy to monitor */
+	hci_send_to_monitor(hdev, skb);
+
+	if (atomic_read(&hdev->promisc)) {
+		/* Send copy to the sockets */
+		hci_send_to_sock(hdev, skb);
+	}
+
+	/* Get rid of skb owner, prior to sending to the driver. */
+	skb_orphan(skb);
+
+	return hdev->send(skb);
+}
+
+/* Send HCI command */
+int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param)
+{
+	int len = HCI_COMMAND_HDR_SIZE + plen;
+	struct hci_command_hdr *hdr;
+	struct sk_buff *skb;
+
+	BT_DBG("%s opcode 0x%x plen %d", hdev->name, opcode, plen);
+
+	skb = bt_skb_alloc(len, GFP_ATOMIC);
+	if (!skb) {
+		BT_ERR("%s no memory for command", hdev->name);
+		return -ENOMEM;
+	}
+
+	hdr = (struct hci_command_hdr *) skb_put(skb, HCI_COMMAND_HDR_SIZE);
+	hdr->opcode = cpu_to_le16(opcode);
+	hdr->plen   = plen;
+
+	if (plen)
+		memcpy(skb_put(skb, plen), param, plen);
+
+	BT_DBG("skb len %d", skb->len);
+
+	bt_cb(skb)->pkt_type = HCI_COMMAND_PKT;
+	skb->dev = (void *) hdev;
+
+	if (test_bit(HCI_INIT, &hdev->flags))
+		hdev->init_last_cmd = opcode;
+
+	skb_queue_tail(&hdev->cmd_q, skb);
+	queue_work(hdev->workqueue, &hdev->cmd_work);
+
+	return 0;
+}
+
+/* Get data from the previously sent command */
+void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode)
+{
+	struct hci_command_hdr *hdr;
+
+	if (!hdev->sent_cmd)
+		return NULL;
+
+	hdr = (void *) hdev->sent_cmd->data;
+
+	if (hdr->opcode != cpu_to_le16(opcode))
+		return NULL;
+
+	BT_DBG("%s opcode 0x%x", hdev->name, opcode);
+
+	return hdev->sent_cmd->data + HCI_COMMAND_HDR_SIZE;
+}
+
+/* Send ACL data */
+static void hci_add_acl_hdr(struct sk_buff *skb, __u16 handle, __u16 flags)
+{
+	struct hci_acl_hdr *hdr;
+	int len = skb->len;
+
+	skb_push(skb, HCI_ACL_HDR_SIZE);
+	skb_reset_transport_header(skb);
+	hdr = (struct hci_acl_hdr *)skb_transport_header(skb);
+	hdr->handle = cpu_to_le16(hci_handle_pack(handle, flags));
+	hdr->dlen   = cpu_to_le16(len);
+}
+
+static void hci_queue_acl(struct hci_conn *conn, struct sk_buff_head *queue,
+				struct sk_buff *skb, __u16 flags)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct sk_buff *list;
+
+	list = skb_shinfo(skb)->frag_list;
+	if (!list) {
+		/* Non fragmented */
+		BT_DBG("%s nonfrag skb %p len %d", hdev->name, skb, skb->len);
+
+		skb_queue_tail(queue, skb);
+	} else {
+		/* Fragmented */
+		BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len);
+
+		skb_shinfo(skb)->frag_list = NULL;
+
+		/* Queue all fragments atomically */
+		spin_lock(&queue->lock);
+
+		__skb_queue_tail(queue, skb);
+
+		flags &= ~ACL_START;
+		flags |= ACL_CONT;
+		do {
+			skb = list; list = list->next;
+
+			skb->dev = (void *) hdev;
+			bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
+			hci_add_acl_hdr(skb, conn->handle, flags);
+
+			BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len);
+
+			__skb_queue_tail(queue, skb);
+		} while (list);
+
+		spin_unlock(&queue->lock);
+	}
+}
+
+void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags)
+{
+	struct hci_conn *conn = chan->conn;
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("%s chan %p flags 0x%x", hdev->name, chan, flags);
+
+	skb->dev = (void *) hdev;
+	bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
+	hci_add_acl_hdr(skb, conn->handle, flags);
+
+	hci_queue_acl(conn, &chan->data_q, skb, flags);
+
+	queue_work(hdev->workqueue, &hdev->tx_work);
+}
+EXPORT_SYMBOL(hci_send_acl);
+
+/* Send SCO data */
+void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_sco_hdr hdr;
+
+	BT_DBG("%s len %d", hdev->name, skb->len);
+
+	hdr.handle = cpu_to_le16(conn->handle);
+	hdr.dlen   = skb->len;
+
+	skb_push(skb, HCI_SCO_HDR_SIZE);
+	skb_reset_transport_header(skb);
+	memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE);
+
+	skb->dev = (void *) hdev;
+	bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
+
+	skb_queue_tail(&conn->data_q, skb);
+	queue_work(hdev->workqueue, &hdev->tx_work);
+}
+EXPORT_SYMBOL(hci_send_sco);
+
+/* ---- HCI TX task (outgoing data) ---- */
+
+/* HCI Connection scheduler */
+static inline struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int *quote)
+{
+	struct hci_conn_hash *h = &hdev->conn_hash;
+	struct hci_conn *conn = NULL, *c;
+	int num = 0, min = ~0;
+
+	/* We don't have to lock device here. Connections are always
+	 * added and removed with TX task disabled. */
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(c, &h->list, list) {
+		if (c->type != type || skb_queue_empty(&c->data_q))
+			continue;
+
+		if (c->state != BT_CONNECTED && c->state != BT_CONFIG)
+			continue;
+
+		num++;
+
+		if (c->sent < min) {
+			min  = c->sent;
+			conn = c;
+		}
+
+		if (hci_conn_num(hdev, type) == num)
+			break;
+	}
+
+	rcu_read_unlock();
+
+	if (conn) {
+		int cnt, q;
+
+		switch (conn->type) {
+		case ACL_LINK:
+			cnt = hdev->acl_cnt;
+			break;
+		case SCO_LINK:
+		case ESCO_LINK:
+			cnt = hdev->sco_cnt;
+			break;
+		case LE_LINK:
+			cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt;
+			break;
+		default:
+			cnt = 0;
+			BT_ERR("Unknown link type");
+		}
+
+		q = cnt / num;
+		*quote = q ? q : 1;
+	} else
+		*quote = 0;
+
+	BT_DBG("conn %p quote %d", conn, *quote);
+	return conn;
+}
+
+static inline void hci_link_tx_to(struct hci_dev *hdev, __u8 type)
+{
+	struct hci_conn_hash *h = &hdev->conn_hash;
+	struct hci_conn *c;
+
+	BT_ERR("%s link tx timeout", hdev->name);
+
+	rcu_read_lock();
+
+	/* Kill stalled connections */
+	list_for_each_entry_rcu(c, &h->list, list) {
+		if (c->type == type && c->sent) {
+			BT_ERR("%s killing stalled connection %s",
+				hdev->name, batostr(&c->dst));
+			hci_acl_disconn(c, 0x13);
+		}
+	}
+
+	rcu_read_unlock();
+}
+
+static inline struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type,
+						int *quote)
+{
+	struct hci_conn_hash *h = &hdev->conn_hash;
+	struct hci_chan *chan = NULL;
+	int num = 0, min = ~0, cur_prio = 0;
+	struct hci_conn *conn;
+	int cnt, q, conn_num = 0;
+
+	BT_DBG("%s", hdev->name);
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(conn, &h->list, list) {
+		struct hci_chan *tmp;
+
+		if (conn->type != type)
+			continue;
+
+		if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG)
+			continue;
+
+		conn_num++;
+
+		list_for_each_entry_rcu(tmp, &conn->chan_list, list) {
+			struct sk_buff *skb;
+
+			if (skb_queue_empty(&tmp->data_q))
+				continue;
+
+			skb = skb_peek(&tmp->data_q);
+			if (skb->priority < cur_prio)
+				continue;
+
+			if (skb->priority > cur_prio) {
+				num = 0;
+				min = ~0;
+				cur_prio = skb->priority;
+			}
+
+			num++;
+
+			if (conn->sent < min) {
+				min  = conn->sent;
+				chan = tmp;
+			}
+		}
+
+		if (hci_conn_num(hdev, type) == conn_num)
+			break;
+	}
+
+	rcu_read_unlock();
+
+	if (!chan)
+		return NULL;
+
+	switch (chan->conn->type) {
+	case ACL_LINK:
+		cnt = hdev->acl_cnt;
+		break;
+	case SCO_LINK:
+	case ESCO_LINK:
+		cnt = hdev->sco_cnt;
+		break;
+	case LE_LINK:
+		cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt;
+		break;
+	default:
+		cnt = 0;
+		BT_ERR("Unknown link type");
+	}
+
+	q = cnt / num;
+	*quote = q ? q : 1;
+	BT_DBG("chan %p quote %d", chan, *quote);
+	return chan;
+}
+
+static void hci_prio_recalculate(struct hci_dev *hdev, __u8 type)
+{
+	struct hci_conn_hash *h = &hdev->conn_hash;
+	struct hci_conn *conn;
+	int num = 0;
+
+	BT_DBG("%s", hdev->name);
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(conn, &h->list, list) {
+		struct hci_chan *chan;
+
+		if (conn->type != type)
+			continue;
+
+		if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG)
+			continue;
+
+		num++;
+
+		list_for_each_entry_rcu(chan, &conn->chan_list, list) {
+			struct sk_buff *skb;
+
+			if (chan->sent) {
+				chan->sent = 0;
+				continue;
+			}
+
+			if (skb_queue_empty(&chan->data_q))
+				continue;
+
+			skb = skb_peek(&chan->data_q);
+			if (skb->priority >= HCI_PRIO_MAX - 1)
+				continue;
+
+			skb->priority = HCI_PRIO_MAX - 1;
+
+			BT_DBG("chan %p skb %p promoted to %d", chan, skb,
+								skb->priority);
+		}
+
+		if (hci_conn_num(hdev, type) == num)
+			break;
+	}
+
+	rcu_read_unlock();
+
+}
+
+static inline int __get_blocks(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	/* Calculate count of blocks used by this packet */
+	return DIV_ROUND_UP(skb->len - HCI_ACL_HDR_SIZE, hdev->block_len);
+}
+
+static inline void __check_timeout(struct hci_dev *hdev, unsigned int cnt)
+{
+	if (!test_bit(HCI_RAW, &hdev->flags)) {
+		/* ACL tx timeout must be longer than maximum
+		 * link supervision timeout (40.9 seconds) */
+		if (!cnt && time_after(jiffies, hdev->acl_last_tx +
+					msecs_to_jiffies(HCI_ACL_TX_TIMEOUT)))
+			hci_link_tx_to(hdev, ACL_LINK);
+	}
+}
+
+static inline void hci_sched_acl_pkt(struct hci_dev *hdev)
+{
+	unsigned int cnt = hdev->acl_cnt;
+	struct hci_chan *chan;
+	struct sk_buff *skb;
+	int quote;
+
+	__check_timeout(hdev, cnt);
+
+	while (hdev->acl_cnt &&
+			(chan = hci_chan_sent(hdev, ACL_LINK, &quote))) {
+		u32 priority = (skb_peek(&chan->data_q))->priority;
+		while (quote-- && (skb = skb_peek(&chan->data_q))) {
+			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
+					skb->len, skb->priority);
+
+			/* Stop if priority has changed */
+			if (skb->priority < priority)
+				break;
+
+			skb = skb_dequeue(&chan->data_q);
+
+			hci_conn_enter_active_mode(chan->conn,
+						   bt_cb(skb)->force_active);
+
+			hci_send_frame(skb);
+			hdev->acl_last_tx = jiffies;
+
+			hdev->acl_cnt--;
+			chan->sent++;
+			chan->conn->sent++;
+		}
+	}
+
+	if (cnt != hdev->acl_cnt)
+		hci_prio_recalculate(hdev, ACL_LINK);
+}
+
+static inline void hci_sched_acl_blk(struct hci_dev *hdev)
+{
+	unsigned int cnt = hdev->block_cnt;
+	struct hci_chan *chan;
+	struct sk_buff *skb;
+	int quote;
+
+	__check_timeout(hdev, cnt);
+
+	while (hdev->block_cnt > 0 &&
+			(chan = hci_chan_sent(hdev, ACL_LINK, &quote))) {
+		u32 priority = (skb_peek(&chan->data_q))->priority;
+		while (quote > 0 && (skb = skb_peek(&chan->data_q))) {
+			int blocks;
+
+			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
+						skb->len, skb->priority);
+
+			/* Stop if priority has changed */
+			if (skb->priority < priority)
+				break;
+
+			skb = skb_dequeue(&chan->data_q);
+
+			blocks = __get_blocks(hdev, skb);
+			if (blocks > hdev->block_cnt)
+				return;
+
+			hci_conn_enter_active_mode(chan->conn,
+						bt_cb(skb)->force_active);
+
+			hci_send_frame(skb);
+			hdev->acl_last_tx = jiffies;
+
+			hdev->block_cnt -= blocks;
+			quote -= blocks;
+
+			chan->sent += blocks;
+			chan->conn->sent += blocks;
+		}
+	}
+
+	if (cnt != hdev->block_cnt)
+		hci_prio_recalculate(hdev, ACL_LINK);
+}
+
+static inline void hci_sched_acl(struct hci_dev *hdev)
+{
+	BT_DBG("%s", hdev->name);
+
+	if (!hci_conn_num(hdev, ACL_LINK))
+		return;
+
+	switch (hdev->flow_ctl_mode) {
+	case HCI_FLOW_CTL_MODE_PACKET_BASED:
+		hci_sched_acl_pkt(hdev);
+		break;
+
+	case HCI_FLOW_CTL_MODE_BLOCK_BASED:
+		hci_sched_acl_blk(hdev);
+		break;
+	}
+}
+
+/* Schedule SCO */
+static inline void hci_sched_sco(struct hci_dev *hdev)
+{
+	struct hci_conn *conn;
+	struct sk_buff *skb;
+	int quote;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!hci_conn_num(hdev, SCO_LINK))
+		return;
+
+	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, &quote))) {
+		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
+			BT_DBG("skb %p len %d", skb, skb->len);
+			hci_send_frame(skb);
+
+			conn->sent++;
+			if (conn->sent == ~0)
+				conn->sent = 0;
+		}
+	}
+}
+
+static inline void hci_sched_esco(struct hci_dev *hdev)
+{
+	struct hci_conn *conn;
+	struct sk_buff *skb;
+	int quote;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!hci_conn_num(hdev, ESCO_LINK))
+		return;
+
+	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, &quote))) {
+		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
+			BT_DBG("skb %p len %d", skb, skb->len);
+			hci_send_frame(skb);
+
+			conn->sent++;
+			if (conn->sent == ~0)
+				conn->sent = 0;
+		}
+	}
+}
+
+static inline void hci_sched_le(struct hci_dev *hdev)
+{
+	struct hci_chan *chan;
+	struct sk_buff *skb;
+	int quote, cnt, tmp;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!hci_conn_num(hdev, LE_LINK))
+		return;
+
+	if (!test_bit(HCI_RAW, &hdev->flags)) {
+		/* LE tx timeout must be longer than maximum
+		 * link supervision timeout (40.9 seconds) */
+		if (!hdev->le_cnt && hdev->le_pkts &&
+				time_after(jiffies, hdev->le_last_tx + HZ * 45))
+			hci_link_tx_to(hdev, LE_LINK);
+	}
+
+	cnt = hdev->le_pkts ? hdev->le_cnt : hdev->acl_cnt;
+	tmp = cnt;
+	while (cnt && (chan = hci_chan_sent(hdev, LE_LINK, &quote))) {
+		u32 priority = (skb_peek(&chan->data_q))->priority;
+		while (quote-- && (skb = skb_peek(&chan->data_q))) {
+			BT_DBG("chan %p skb %p len %d priority %u", chan, skb,
+					skb->len, skb->priority);
+
+			/* Stop if priority has changed */
+			if (skb->priority < priority)
+				break;
+
+			skb = skb_dequeue(&chan->data_q);
+
+			hci_send_frame(skb);
+			hdev->le_last_tx = jiffies;
+
+			cnt--;
+			chan->sent++;
+			chan->conn->sent++;
+		}
+	}
+
+	if (hdev->le_pkts)
+		hdev->le_cnt = cnt;
+	else
+		hdev->acl_cnt = cnt;
+
+	if (cnt != tmp)
+		hci_prio_recalculate(hdev, LE_LINK);
+}
+
+static void hci_tx_work(struct work_struct *work)
+{
+	struct hci_dev *hdev = container_of(work, struct hci_dev, tx_work);
+	struct sk_buff *skb;
+
+	BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt,
+		hdev->sco_cnt, hdev->le_cnt);
+
+	/* Schedule queues and send stuff to HCI driver */
+
+	hci_sched_acl(hdev);
+
+	hci_sched_sco(hdev);
+
+	hci_sched_esco(hdev);
+
+	hci_sched_le(hdev);
+
+	/* Send next queued raw (unknown type) packet */
+	while ((skb = skb_dequeue(&hdev->raw_q)))
+		hci_send_frame(skb);
+}
+
+/* ----- HCI RX task (incoming data processing) ----- */
+
+/* ACL data packet */
+static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_acl_hdr *hdr = (void *) skb->data;
+	struct hci_conn *conn;
+	__u16 handle, flags;
+
+	skb_pull(skb, HCI_ACL_HDR_SIZE);
+
+	handle = __le16_to_cpu(hdr->handle);
+	flags  = hci_flags(handle);
+	handle = hci_handle(handle);
+
+	BT_DBG("%s len %d handle 0x%x flags 0x%x", hdev->name, skb->len, handle, flags);
+
+	hdev->stat.acl_rx++;
+
+	hci_dev_lock(hdev);
+	conn = hci_conn_hash_lookup_handle(hdev, handle);
+	hci_dev_unlock(hdev);
+
+	if (conn) {
+		hci_conn_enter_active_mode(conn, BT_POWER_FORCE_ACTIVE_OFF);
+
+		hci_dev_lock(hdev);
+		if (test_bit(HCI_MGMT, &hdev->dev_flags) &&
+		    !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
+			mgmt_device_connected(hdev, &conn->dst, conn->type,
+					      conn->dst_type, 0, NULL, 0,
+					      conn->dev_class);
+		hci_dev_unlock(hdev);
+
+		/* Send to upper protocol */
+		l2cap_recv_acldata(conn, skb, flags);
+		return;
+	} else {
+		BT_ERR("%s ACL packet for unknown connection handle %d",
+			hdev->name, handle);
+	}
+
+	kfree_skb(skb);
+}
+
+/* SCO data packet */
+static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_sco_hdr *hdr = (void *) skb->data;
+	struct hci_conn *conn;
+	__u16 handle;
+
+	skb_pull(skb, HCI_SCO_HDR_SIZE);
+
+	handle = __le16_to_cpu(hdr->handle);
+
+	BT_DBG("%s len %d handle 0x%x", hdev->name, skb->len, handle);
+
+	hdev->stat.sco_rx++;
+
+	hci_dev_lock(hdev);
+	conn = hci_conn_hash_lookup_handle(hdev, handle);
+	hci_dev_unlock(hdev);
+
+	if (conn) {
+		/* Send to upper protocol */
+		sco_recv_scodata(conn, skb);
+		return;
+	} else {
+		BT_ERR("%s SCO packet for unknown connection handle %d",
+			hdev->name, handle);
+	}
+
+	kfree_skb(skb);
+}
+
+static void hci_rx_work(struct work_struct *work)
+{
+	struct hci_dev *hdev = container_of(work, struct hci_dev, rx_work);
+	struct sk_buff *skb;
+
+	BT_DBG("%s", hdev->name);
+
+	while ((skb = skb_dequeue(&hdev->rx_q))) {
+		/* Send copy to monitor */
+		hci_send_to_monitor(hdev, skb);
+
+		if (atomic_read(&hdev->promisc)) {
+			/* Send copy to the sockets */
+			hci_send_to_sock(hdev, skb);
+		}
+
+		if (test_bit(HCI_RAW, &hdev->flags)) {
+			kfree_skb(skb);
+			continue;
+		}
+
+		if (test_bit(HCI_INIT, &hdev->flags)) {
+			/* Don't process data packets in this states. */
+			switch (bt_cb(skb)->pkt_type) {
+			case HCI_ACLDATA_PKT:
+			case HCI_SCODATA_PKT:
+				kfree_skb(skb);
+				continue;
+			}
+		}
+
+		/* Process frame */
+		switch (bt_cb(skb)->pkt_type) {
+		case HCI_EVENT_PKT:
+			BT_DBG("%s Event packet", hdev->name);
+			hci_event_packet(hdev, skb);
+			break;
+
+		case HCI_ACLDATA_PKT:
+			BT_DBG("%s ACL data packet", hdev->name);
+			hci_acldata_packet(hdev, skb);
+			break;
+
+		case HCI_SCODATA_PKT:
+			BT_DBG("%s SCO data packet", hdev->name);
+			hci_scodata_packet(hdev, skb);
+			break;
+
+		default:
+			kfree_skb(skb);
+			break;
+		}
+	}
+}
+
+static void hci_cmd_work(struct work_struct *work)
+{
+	struct hci_dev *hdev = container_of(work, struct hci_dev, cmd_work);
+	struct sk_buff *skb;
+
+	BT_DBG("%s cmd %d", hdev->name, atomic_read(&hdev->cmd_cnt));
+
+	/* Send queued commands */
+	if (atomic_read(&hdev->cmd_cnt)) {
+		skb = skb_dequeue(&hdev->cmd_q);
+		if (!skb)
+			return;
+
+		kfree_skb(hdev->sent_cmd);
+
+		hdev->sent_cmd = skb_clone(skb, GFP_ATOMIC);
+		if (hdev->sent_cmd) {
+			atomic_dec(&hdev->cmd_cnt);
+			hci_send_frame(skb);
+			if (test_bit(HCI_RESET, &hdev->flags))
+				del_timer(&hdev->cmd_timer);
+			else
+				mod_timer(&hdev->cmd_timer,
+				  jiffies + msecs_to_jiffies(HCI_CMD_TIMEOUT));
+		} else {
+			skb_queue_head(&hdev->cmd_q, skb);
+			queue_work(hdev->workqueue, &hdev->cmd_work);
+		}
+	}
+}
+
+int hci_do_inquiry(struct hci_dev *hdev, u8 length)
+{
+	/* General inquiry access code (GIAC) */
+	u8 lap[3] = { 0x33, 0x8b, 0x9e };
+	struct hci_cp_inquiry cp;
+
+	BT_DBG("%s", hdev->name);
+
+	if (test_bit(HCI_INQUIRY, &hdev->flags))
+		return -EINPROGRESS;
+
+	inquiry_cache_flush(hdev);
+
+	memset(&cp, 0, sizeof(cp));
+	memcpy(&cp.lap, lap, sizeof(cp.lap));
+	cp.length  = length;
+
+	return hci_send_cmd(hdev, HCI_OP_INQUIRY, sizeof(cp), &cp);
+}
+
+int hci_cancel_inquiry(struct hci_dev *hdev)
+{
+	BT_DBG("%s", hdev->name);
+
+	if (!test_bit(HCI_INQUIRY, &hdev->flags))
+		return -EPERM;
+
+	return hci_send_cmd(hdev, HCI_OP_INQUIRY_CANCEL, 0, NULL);
+}
diff --git a/net/bluetooth_tizen/hci_event.c b/net/bluetooth_tizen/hci_event.c
new file mode 100644
index 0000000..17aaa11
--- /dev/null
+++ b/net/bluetooth_tizen/hci_event.c
@@ -0,0 +1,3604 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth HCI event handling. */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+#include <net/sock.h>
+
+#include <asm/system.h>
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+/* Handle HCI Event packets */
+
+static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (status) {
+		hci_dev_lock(hdev);
+		mgmt_stop_discovery_failed(hdev, status);
+		hci_dev_unlock(hdev);
+		return;
+	}
+
+	clear_bit(HCI_INQUIRY, &hdev->flags);
+
+	hci_dev_lock(hdev);
+	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+	hci_dev_unlock(hdev);
+
+	hci_req_complete(hdev, HCI_OP_INQUIRY_CANCEL, status);
+
+	hci_conn_check_pending(hdev);
+}
+
+static void hci_cc_exit_periodic_inq(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (status)
+		return;
+
+	hci_conn_check_pending(hdev);
+}
+
+static void hci_cc_remote_name_req_cancel(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	BT_DBG("%s", hdev->name);
+}
+
+static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_role_discovery *rp = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
+	if (conn) {
+		if (rp->role)
+			conn->link_mode &= ~HCI_LM_MASTER;
+		else
+			conn->link_mode |= HCI_LM_MASTER;
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_read_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_link_policy *rp = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
+	if (conn)
+		conn->link_policy = __le16_to_cpu(rp->policy);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_write_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_write_link_policy *rp = (void *) skb->data;
+	struct hci_conn *conn;
+	void *sent;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
+	if (!sent)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
+	if (conn)
+		conn->link_policy = get_unaligned_le16(sent + 2);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_read_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_def_link_policy *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hdev->link_policy = __le16_to_cpu(rp->policy);
+}
+
+static void hci_cc_write_def_link_policy(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+	void *sent;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
+	if (!sent)
+		return;
+
+	if (!status)
+		hdev->link_policy = get_unaligned_le16(sent);
+
+	hci_req_complete(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, status);
+}
+
+static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	clear_bit(HCI_RESET, &hdev->flags);
+
+	hci_req_complete(hdev, HCI_OP_RESET, status);
+
+	/* Reset all non-persistent flags */
+	hdev->dev_flags &= ~(BIT(HCI_LE_SCAN) | BIT(HCI_PENDING_CLASS));
+
+	hdev->discovery.state = DISCOVERY_STOPPED;
+}
+
+static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+	void *sent;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
+	if (!sent)
+		return;
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_set_local_name_complete(hdev, sent, status);
+	else if (!status)
+		memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
+
+	hci_dev_unlock(hdev);
+
+	hci_req_complete(hdev, HCI_OP_WRITE_LOCAL_NAME, status);
+}
+
+static void hci_cc_read_local_name(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_local_name *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	if (test_bit(HCI_SETUP, &hdev->dev_flags))
+		memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
+}
+
+static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+	void *sent;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
+	if (!sent)
+		return;
+
+	if (!status) {
+		__u8 param = *((__u8 *) sent);
+
+		if (param == AUTH_ENABLED)
+			set_bit(HCI_AUTH, &hdev->flags);
+		else
+			clear_bit(HCI_AUTH, &hdev->flags);
+	}
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_auth_enable_complete(hdev, status);
+
+	hci_req_complete(hdev, HCI_OP_WRITE_AUTH_ENABLE, status);
+}
+
+static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+	void *sent;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
+	if (!sent)
+		return;
+
+	if (!status) {
+		__u8 param = *((__u8 *) sent);
+
+		if (param)
+			set_bit(HCI_ENCRYPT, &hdev->flags);
+		else
+			clear_bit(HCI_ENCRYPT, &hdev->flags);
+	}
+
+	hci_req_complete(hdev, HCI_OP_WRITE_ENCRYPT_MODE, status);
+}
+
+static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 param, status = *((__u8 *) skb->data);
+	int old_pscan, old_iscan;
+	void *sent;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
+	if (!sent)
+		return;
+
+	param = *((__u8 *) sent);
+
+	hci_dev_lock(hdev);
+
+	if (status != 0) {
+		mgmt_write_scan_failed(hdev, param, status);
+		hdev->discov_timeout = 0;
+		goto done;
+	}
+
+	old_pscan = test_and_clear_bit(HCI_PSCAN, &hdev->flags);
+	old_iscan = test_and_clear_bit(HCI_ISCAN, &hdev->flags);
+
+	if (param & SCAN_INQUIRY) {
+		set_bit(HCI_ISCAN, &hdev->flags);
+		if (!old_iscan)
+			mgmt_discoverable(hdev, 1);
+		if (hdev->discov_timeout > 0) {
+			int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
+			queue_delayed_work(hdev->workqueue, &hdev->discov_off,
+									to);
+		}
+	} else if (old_iscan)
+		mgmt_discoverable(hdev, 0);
+
+	if (param & SCAN_PAGE) {
+		set_bit(HCI_PSCAN, &hdev->flags);
+		if (!old_pscan)
+			mgmt_connectable(hdev, 1);
+	} else if (old_pscan)
+		mgmt_connectable(hdev, 0);
+
+done:
+	hci_dev_unlock(hdev);
+	hci_req_complete(hdev, HCI_OP_WRITE_SCAN_ENABLE, status);
+}
+
+static void hci_cc_read_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_class_of_dev *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	memcpy(hdev->dev_class, rp->dev_class, 3);
+
+	BT_DBG("%s class 0x%.2x%.2x%.2x", hdev->name,
+		hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
+}
+
+static void hci_cc_write_class_of_dev(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+	void *sent;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
+	if (!sent)
+		return;
+
+	hci_dev_lock(hdev);
+
+	if (status == 0)
+		memcpy(hdev->dev_class, sent, 3);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_set_class_of_dev_complete(hdev, sent, status);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_read_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_voice_setting *rp = (void *) skb->data;
+	__u16 setting;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	setting = __le16_to_cpu(rp->voice_setting);
+
+	if (hdev->voice_setting == setting)
+		return;
+
+	hdev->voice_setting = setting;
+
+	BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
+
+	if (hdev->notify)
+		hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
+}
+
+static void hci_cc_write_voice_setting(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+	__u16 setting;
+	void *sent;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (status)
+		return;
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
+	if (!sent)
+		return;
+
+	setting = get_unaligned_le16(sent);
+
+	if (hdev->voice_setting == setting)
+		return;
+
+	hdev->voice_setting = setting;
+
+	BT_DBG("%s voice setting 0x%04x", hdev->name, setting);
+
+	if (hdev->notify)
+		hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
+}
+
+static void hci_cc_host_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_HOST_BUFFER_SIZE, status);
+}
+
+static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+	void *sent;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
+	if (!sent)
+		return;
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_ssp_enable_complete(hdev, *((u8 *) sent), status);
+	else if (!status) {
+		if (*((u8 *) sent))
+			set_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
+		else
+			clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
+	}
+}
+
+static u8 hci_get_inquiry_mode(struct hci_dev *hdev)
+{
+	if (hdev->features[6] & LMP_EXT_INQ)
+		return 2;
+
+	if (hdev->features[3] & LMP_RSSI_INQ)
+		return 1;
+
+	if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 &&
+						hdev->lmp_subver == 0x0757)
+		return 1;
+
+	if (hdev->manufacturer == 15) {
+		if (hdev->hci_rev == 0x03 && hdev->lmp_subver == 0x6963)
+			return 1;
+		if (hdev->hci_rev == 0x09 && hdev->lmp_subver == 0x6963)
+			return 1;
+		if (hdev->hci_rev == 0x00 && hdev->lmp_subver == 0x6965)
+			return 1;
+	}
+
+	if (hdev->manufacturer == 31 && hdev->hci_rev == 0x2005 &&
+						hdev->lmp_subver == 0x1805)
+		return 1;
+
+	return 0;
+}
+
+static void hci_setup_inquiry_mode(struct hci_dev *hdev)
+{
+	u8 mode;
+
+	mode = hci_get_inquiry_mode(hdev);
+
+	hci_send_cmd(hdev, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode);
+}
+
+static void hci_setup_event_mask(struct hci_dev *hdev)
+{
+	/* The second byte is 0xff instead of 0x9f (two reserved bits
+	 * disabled) since a Broadcom 1.2 dongle doesn't respond to the
+	 * command otherwise */
+	u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 };
+
+	/* CSR 1.1 dongles does not accept any bitfield so don't try to set
+	 * any event mask for pre 1.2 devices */
+	if (hdev->hci_ver < BLUETOOTH_VER_1_2)
+		return;
+
+	events[4] |= 0x01; /* Flow Specification Complete */
+	events[4] |= 0x02; /* Inquiry Result with RSSI */
+	events[4] |= 0x04; /* Read Remote Extended Features Complete */
+	events[5] |= 0x08; /* Synchronous Connection Complete */
+	events[5] |= 0x10; /* Synchronous Connection Changed */
+
+	if (hdev->features[3] & LMP_RSSI_INQ)
+		events[4] |= 0x02; /* Inquiry Result with RSSI */
+
+	if (hdev->features[5] & LMP_SNIFF_SUBR)
+		events[5] |= 0x20; /* Sniff Subrating */
+
+	if (hdev->features[5] & LMP_PAUSE_ENC)
+		events[5] |= 0x80; /* Encryption Key Refresh Complete */
+
+	if (hdev->features[6] & LMP_EXT_INQ)
+		events[5] |= 0x40; /* Extended Inquiry Result */
+
+	if (hdev->features[6] & LMP_NO_FLUSH)
+		events[7] |= 0x01; /* Enhanced Flush Complete */
+
+	if (hdev->features[7] & LMP_LSTO)
+		events[6] |= 0x80; /* Link Supervision Timeout Changed */
+
+	if (hdev->features[6] & LMP_SIMPLE_PAIR) {
+		events[6] |= 0x01;	/* IO Capability Request */
+		events[6] |= 0x02;	/* IO Capability Response */
+		events[6] |= 0x04;	/* User Confirmation Request */
+		events[6] |= 0x08;	/* User Passkey Request */
+		events[6] |= 0x10;	/* Remote OOB Data Request */
+		events[6] |= 0x20;	/* Simple Pairing Complete */
+		events[7] |= 0x04;	/* User Passkey Notification */
+		events[7] |= 0x08;	/* Keypress Notification */
+		events[7] |= 0x10;	/* Remote Host Supported
+					 * Features Notification */
+	}
+
+	if (hdev->features[4] & LMP_LE)
+		events[7] |= 0x20;	/* LE Meta-Event */
+
+	hci_send_cmd(hdev, HCI_OP_SET_EVENT_MASK, sizeof(events), events);
+}
+
+static void hci_setup(struct hci_dev *hdev)
+{
+	if (hdev->dev_type != HCI_BREDR)
+		return;
+
+	hci_setup_event_mask(hdev);
+
+	if (hdev->hci_ver > BLUETOOTH_VER_1_1)
+		hci_send_cmd(hdev, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
+
+	if (hdev->features[6] & LMP_SIMPLE_PAIR) {
+		if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
+			u8 mode = 0x01;
+			hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE,
+				     sizeof(mode), &mode);
+		} else {
+			struct hci_cp_write_eir cp;
+
+			memset(hdev->eir, 0, sizeof(hdev->eir));
+			memset(&cp, 0, sizeof(cp));
+
+			hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
+		}
+	}
+
+	if (hdev->features[3] & LMP_RSSI_INQ)
+		hci_setup_inquiry_mode(hdev);
+
+	if (hdev->features[7] & LMP_INQ_TX_PWR)
+		hci_send_cmd(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
+
+	if (hdev->features[7] & LMP_EXTFEATURES) {
+		struct hci_cp_read_local_ext_features cp;
+
+		cp.page = 0x01;
+		hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp),
+			     &cp);
+	}
+
+	if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) {
+		u8 enable = 1;
+		hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(enable),
+			     &enable);
+	}
+}
+
+static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_local_version *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		goto done;
+
+	hdev->hci_ver = rp->hci_ver;
+	hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
+	hdev->lmp_ver = rp->lmp_ver;
+	hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
+	hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
+
+	BT_DBG("%s manufacturer %d hci ver %d:%d", hdev->name,
+					hdev->manufacturer,
+					hdev->hci_ver, hdev->hci_rev);
+
+	if (test_bit(HCI_INIT, &hdev->flags))
+		hci_setup(hdev);
+
+done:
+	hci_req_complete(hdev, HCI_OP_READ_LOCAL_VERSION, rp->status);
+}
+
+static void hci_setup_link_policy(struct hci_dev *hdev)
+{
+	u16 link_policy = 0;
+
+	if (hdev->features[0] & LMP_RSWITCH)
+		link_policy |= HCI_LP_RSWITCH;
+	if (hdev->features[0] & LMP_HOLD)
+		link_policy |= HCI_LP_HOLD;
+	if (hdev->features[0] & LMP_SNIFF)
+		link_policy |= HCI_LP_SNIFF;
+	if (hdev->features[1] & LMP_PARK)
+		link_policy |= HCI_LP_PARK;
+
+	link_policy = cpu_to_le16(link_policy);
+	hci_send_cmd(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, sizeof(link_policy),
+		     &link_policy);
+}
+
+static void hci_cc_read_local_commands(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_local_commands *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		goto done;
+
+	memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
+
+	if (test_bit(HCI_INIT, &hdev->flags) && (hdev->commands[5] & 0x10))
+		hci_setup_link_policy(hdev);
+
+done:
+	hci_req_complete(hdev, HCI_OP_READ_LOCAL_COMMANDS, rp->status);
+}
+
+static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_local_features *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	memcpy(hdev->features, rp->features, 8);
+
+	/* Adjust default settings according to features
+	 * supported by device. */
+
+	if (hdev->features[0] & LMP_3SLOT)
+		hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
+
+	if (hdev->features[0] & LMP_5SLOT)
+		hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
+
+	if (hdev->features[1] & LMP_HV2) {
+		hdev->pkt_type  |= (HCI_HV2);
+		hdev->esco_type |= (ESCO_HV2);
+	}
+
+	if (hdev->features[1] & LMP_HV3) {
+		hdev->pkt_type  |= (HCI_HV3);
+		hdev->esco_type |= (ESCO_HV3);
+	}
+
+	if (hdev->features[3] & LMP_ESCO)
+		hdev->esco_type |= (ESCO_EV3);
+
+	if (hdev->features[4] & LMP_EV4)
+		hdev->esco_type |= (ESCO_EV4);
+
+	if (hdev->features[4] & LMP_EV5)
+		hdev->esco_type |= (ESCO_EV5);
+
+	if (hdev->features[5] & LMP_EDR_ESCO_2M)
+		hdev->esco_type |= (ESCO_2EV3);
+
+	if (hdev->features[5] & LMP_EDR_ESCO_3M)
+		hdev->esco_type |= (ESCO_3EV3);
+
+	if (hdev->features[5] & LMP_EDR_3S_ESCO)
+		hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
+
+	BT_DBG("%s features 0x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", hdev->name,
+					hdev->features[0], hdev->features[1],
+					hdev->features[2], hdev->features[3],
+					hdev->features[4], hdev->features[5],
+					hdev->features[6], hdev->features[7]);
+}
+
+static void hci_set_le_support(struct hci_dev *hdev)
+{
+	struct hci_cp_write_le_host_supported cp;
+
+	memset(&cp, 0, sizeof(cp));
+
+	if (enable_le && test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
+		cp.le = 1;
+		cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
+	}
+
+	if (cp.le != !!(hdev->host_features[0] & LMP_HOST_LE))
+		hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp),
+			     &cp);
+}
+
+static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		goto done;
+
+	switch (rp->page) {
+	case 0:
+		memcpy(hdev->features, rp->features, 8);
+		break;
+	case 1:
+		memcpy(hdev->host_features, rp->features, 8);
+		break;
+	}
+
+	if (test_bit(HCI_INIT, &hdev->flags) && hdev->features[4] & LMP_LE)
+		hci_set_le_support(hdev);
+
+done:
+	hci_req_complete(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, rp->status);
+}
+
+static void hci_cc_read_flow_control_mode(struct hci_dev *hdev,
+						struct sk_buff *skb)
+{
+	struct hci_rp_read_flow_control_mode *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hdev->flow_ctl_mode = rp->mode;
+
+	hci_req_complete(hdev, HCI_OP_READ_FLOW_CONTROL_MODE, rp->status);
+}
+
+static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_buffer_size *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hdev->acl_mtu  = __le16_to_cpu(rp->acl_mtu);
+	hdev->sco_mtu  = rp->sco_mtu;
+	hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
+	hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
+
+	if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
+		hdev->sco_mtu  = 64;
+		hdev->sco_pkts = 8;
+	}
+
+	hdev->acl_cnt = hdev->acl_pkts;
+	hdev->sco_cnt = hdev->sco_pkts;
+
+	BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name,
+					hdev->acl_mtu, hdev->acl_pkts,
+					hdev->sco_mtu, hdev->sco_pkts);
+}
+
+static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_read_bd_addr *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (!rp->status)
+		bacpy(&hdev->bdaddr, &rp->bdaddr);
+
+	hci_req_complete(hdev, HCI_OP_READ_BD_ADDR, rp->status);
+}
+
+static void hci_cc_read_data_block_size(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	struct hci_rp_read_data_block_size *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
+	hdev->block_len = __le16_to_cpu(rp->block_len);
+	hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
+
+	hdev->block_cnt = hdev->num_blocks;
+
+	BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
+					hdev->block_cnt, hdev->block_len);
+
+	hci_req_complete(hdev, HCI_OP_READ_DATA_BLOCK_SIZE, rp->status);
+}
+
+static void hci_cc_write_ca_timeout(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_WRITE_CA_TIMEOUT, status);
+}
+
+static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
+		struct sk_buff *skb)
+{
+	struct hci_rp_read_local_amp_info *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hdev->amp_status = rp->amp_status;
+	hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
+	hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
+	hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
+	hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
+	hdev->amp_type = rp->amp_type;
+	hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
+	hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
+	hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
+	hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
+
+	hci_req_complete(hdev, HCI_OP_READ_LOCAL_AMP_INFO, rp->status);
+}
+
+static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_DELETE_STORED_LINK_KEY, status);
+}
+
+static void hci_cc_set_event_mask(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_SET_EVENT_MASK, status);
+}
+
+static void hci_cc_write_inquiry_mode(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_WRITE_INQUIRY_MODE, status);
+}
+
+static void hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, status);
+}
+
+static void hci_cc_set_event_flt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_SET_EVENT_FLT, status);
+}
+
+static void hci_cc_pin_code_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_pin_code_reply *rp = (void *) skb->data;
+	struct hci_cp_pin_code_reply *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
+
+	if (rp->status != 0)
+		goto unlock;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
+	if (!cp)
+		goto unlock;
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
+	if (conn)
+		conn->pin_length = cp->pin_len;
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_pin_code_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_pin_code_neg_reply *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
+								rp->status);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_le_read_buffer_size(struct hci_dev *hdev,
+				       struct sk_buff *skb)
+{
+	struct hci_rp_le_read_buffer_size *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
+	hdev->le_pkts = rp->le_max_pkt;
+
+	hdev->le_cnt = hdev->le_pkts;
+
+	BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
+
+	hci_req_complete(hdev, HCI_OP_LE_READ_BUFFER_SIZE, rp->status);
+}
+
+static void hci_cc_user_confirm_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
+						 rp->status);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_user_confirm_neg_reply(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
+						     ACL_LINK, 0, rp->status);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_user_passkey_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
+						 0, rp->status);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_user_passkey_neg_reply(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	struct hci_rp_user_confirm_reply *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
+						     ACL_LINK, 0, rp->status);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_read_local_oob_data_reply(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	hci_dev_lock(hdev);
+	mgmt_read_local_oob_data_reply_complete(hdev, rp->hash,
+						rp->randomizer, rp->status);
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_LE_SET_SCAN_PARAM, status);
+
+	if (status) {
+		hci_dev_lock(hdev);
+		mgmt_start_discovery_failed(hdev, status);
+		hci_dev_unlock(hdev);
+		return;
+	}
+}
+
+static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
+					struct sk_buff *skb)
+{
+	struct hci_cp_le_set_scan_enable *cp;
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
+	if (!cp)
+		return;
+
+	switch (cp->enable) {
+	case LE_SCANNING_ENABLED:
+		hci_req_complete(hdev, HCI_OP_LE_SET_SCAN_ENABLE, status);
+
+		if (status) {
+			hci_dev_lock(hdev);
+			mgmt_start_discovery_failed(hdev, status);
+			hci_dev_unlock(hdev);
+			return;
+		}
+
+		set_bit(HCI_LE_SCAN, &hdev->dev_flags);
+
+		cancel_delayed_work_sync(&hdev->adv_work);
+
+		hci_dev_lock(hdev);
+		hci_adv_entries_clear(hdev);
+		hci_discovery_set_state(hdev, DISCOVERY_FINDING);
+		hci_dev_unlock(hdev);
+		break;
+
+	case LE_SCANNING_DISABLED:
+		if (status)
+			return;
+
+		clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
+
+		schedule_delayed_work(&hdev->adv_work, ADV_CLEAR_TIMEOUT);
+
+		if (hdev->discovery.type == DISCOV_TYPE_INTERLEAVED) {
+			mgmt_interleaved_discovery(hdev);
+		} else {
+			hci_dev_lock(hdev);
+			hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+			hci_dev_unlock(hdev);
+		}
+
+		break;
+
+	default:
+		BT_ERR("Used reserved LE_Scan_Enable param %d", cp->enable);
+		break;
+	}
+}
+
+static void hci_cc_le_ltk_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_le_ltk_reply *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hci_req_complete(hdev, HCI_OP_LE_LTK_REPLY, rp->status);
+}
+
+static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_rp_le_ltk_neg_reply *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
+}
+
+static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	struct hci_cp_write_le_host_supported *sent;
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
+	if (!sent)
+		return;
+
+	if (!status) {
+		if (sent->le)
+			hdev->host_features[0] |= LMP_HOST_LE;
+		else
+			hdev->host_features[0] &= ~LMP_HOST_LE;
+	}
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags) &&
+					!test_bit(HCI_INIT, &hdev->flags))
+		mgmt_le_enable_complete(hdev, sent->le, status);
+
+	hci_req_complete(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, status);
+}
+
+static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
+{
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (status) {
+		hci_req_complete(hdev, HCI_OP_INQUIRY, status);
+		hci_conn_check_pending(hdev);
+		hci_dev_lock(hdev);
+		if (test_bit(HCI_MGMT, &hdev->dev_flags))
+			mgmt_start_discovery_failed(hdev, status);
+		hci_dev_unlock(hdev);
+		return;
+	}
+
+	set_bit(HCI_INQUIRY, &hdev->flags);
+
+	hci_dev_lock(hdev);
+	hci_discovery_set_state(hdev, DISCOVERY_FINDING);
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_create_conn *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
+
+	BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->bdaddr), conn);
+
+	if (status) {
+		if (conn && conn->state == BT_CONNECT) {
+			if (status != 0x0c || conn->attempt > 2) {
+				conn->state = BT_CLOSED;
+				hci_proto_connect_cfm(conn, status);
+				hci_conn_del(conn);
+			} else
+				conn->state = BT_CONNECT2;
+		}
+	} else {
+		if (!conn) {
+			conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
+			if (conn) {
+				conn->out = true;
+				conn->link_mode |= HCI_LM_MASTER;
+			} else
+				BT_ERR("No memory for new connection");
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_add_sco *cp;
+	struct hci_conn *acl, *sco;
+	__u16 handle;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
+	if (!cp)
+		return;
+
+	handle = __le16_to_cpu(cp->handle);
+
+	BT_DBG("%s handle %d", hdev->name, handle);
+
+	hci_dev_lock(hdev);
+
+	acl = hci_conn_hash_lookup_handle(hdev, handle);
+	if (acl) {
+		sco = acl->link;
+		if (sco) {
+			sco->state = BT_CLOSED;
+
+			hci_proto_connect_cfm(sco, status);
+			hci_conn_del(sco);
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_auth_requested *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+	if (conn) {
+		if (conn->state == BT_CONFIG) {
+			hci_proto_connect_cfm(conn, status);
+			hci_conn_put(conn);
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_set_conn_encrypt *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+	if (conn) {
+		if (conn->state == BT_CONFIG) {
+			hci_proto_connect_cfm(conn, status);
+			hci_conn_put(conn);
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static int hci_outgoing_auth_needed(struct hci_dev *hdev,
+							struct hci_conn *conn)
+{
+	if (conn->state != BT_CONFIG || !conn->out)
+		return 0;
+
+	if (conn->pending_sec_level == BT_SECURITY_SDP)
+		return 0;
+
+	/* Only request authentication for SSP connections or non-SSP
+	 * devices with sec_level HIGH or if MITM protection is requested */
+	if (!hci_conn_ssp_enabled(conn) &&
+				conn->pending_sec_level != BT_SECURITY_HIGH &&
+				!(conn->auth_type & 0x01))
+		return 0;
+
+	return 1;
+}
+
+static inline int hci_resolve_name(struct hci_dev *hdev,
+				   struct inquiry_entry *e)
+{
+	struct hci_cp_remote_name_req cp;
+
+	memset(&cp, 0, sizeof(cp));
+
+	bacpy(&cp.bdaddr, &e->data.bdaddr);
+	cp.pscan_rep_mode = e->data.pscan_rep_mode;
+	cp.pscan_mode = e->data.pscan_mode;
+	cp.clock_offset = e->data.clock_offset;
+
+	return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
+}
+
+static bool hci_resolve_next_name(struct hci_dev *hdev)
+{
+	struct discovery_state *discov = &hdev->discovery;
+	struct inquiry_entry *e;
+
+	if (list_empty(&discov->resolve))
+		return false;
+
+	e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
+	if (hci_resolve_name(hdev, e) == 0) {
+		e->name_state = NAME_PENDING;
+		return true;
+	}
+
+	return false;
+}
+
+static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
+				   bdaddr_t *bdaddr, u8 *name, u8 name_len)
+{
+	struct discovery_state *discov = &hdev->discovery;
+	struct inquiry_entry *e;
+
+	if (conn && !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
+		mgmt_device_connected(hdev, bdaddr, ACL_LINK, 0x00, 0, name,
+				      name_len, conn->dev_class);
+
+	if (discov->state == DISCOVERY_STOPPED)
+		return;
+
+	if (discov->state == DISCOVERY_STOPPING)
+		goto discov_complete;
+
+	if (discov->state != DISCOVERY_RESOLVING)
+		return;
+
+	e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
+	if (e) {
+		e->name_state = NAME_KNOWN;
+		list_del(&e->list);
+		if (name)
+			mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
+					 e->data.rssi, name, name_len);
+	}
+
+	if (hci_resolve_next_name(hdev))
+		return;
+
+discov_complete:
+	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+}
+
+static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_remote_name_req *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	/* If successful wait for the name req complete event before
+	 * checking for the need to do authentication */
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
+
+	if (!conn)
+		goto unlock;
+
+	if (!hci_outgoing_auth_needed(hdev, conn))
+		goto unlock;
+
+	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
+		struct hci_cp_auth_requested cp;
+		cp.handle = __cpu_to_le16(conn->handle);
+		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_read_remote_features *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+	if (conn) {
+		if (conn->state == BT_CONFIG) {
+			hci_proto_connect_cfm(conn, status);
+			hci_conn_put(conn);
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_read_remote_ext_features *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+	if (conn) {
+		if (conn->state == BT_CONFIG) {
+			hci_proto_connect_cfm(conn, status);
+			hci_conn_put(conn);
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_setup_sync_conn *cp;
+	struct hci_conn *acl, *sco;
+	__u16 handle;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
+	if (!cp)
+		return;
+
+	handle = __le16_to_cpu(cp->handle);
+
+	BT_DBG("%s handle %d", hdev->name, handle);
+
+	hci_dev_lock(hdev);
+
+	acl = hci_conn_hash_lookup_handle(hdev, handle);
+	if (acl) {
+		sco = acl->link;
+		if (sco) {
+			sco->state = BT_CLOSED;
+
+			hci_proto_connect_cfm(sco, status);
+			hci_conn_del(sco);
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_sniff_mode *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+	if (conn) {
+		clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
+
+		if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
+			hci_sco_setup(conn, status);
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_exit_sniff_mode *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+	if (conn) {
+		clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
+
+		if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
+			hci_sco_setup(conn, status);
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
+{
+	struct hci_cp_disconnect *cp;
+	struct hci_conn *conn;
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+	if (conn)
+		mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
+				       conn->dst_type, status);
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_le_create_conn *cp;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%x", hdev->name, status);
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->peer_addr);
+
+	BT_DBG("%s bdaddr %s conn %p", hdev->name, batostr(&cp->peer_addr),
+		conn);
+
+	if (status) {
+		if (conn && conn->state == BT_CONNECT) {
+			conn->state = BT_CLOSED;
+			hci_proto_connect_cfm(conn, status);
+			hci_conn_del(conn);
+		}
+	} else {
+		if (!conn) {
+			conn = hci_conn_add(hdev, LE_LINK, &cp->peer_addr);
+			if (conn) {
+				conn->dst_type = cp->peer_addr_type;
+				conn->out = true;
+			} else {
+				BT_ERR("No memory for new connection");
+			}
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
+{
+	BT_DBG("%s status 0x%x", hdev->name, status);
+}
+
+static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	__u8 status = *((__u8 *) skb->data);
+	struct discovery_state *discov = &hdev->discovery;
+	struct inquiry_entry *e;
+
+	BT_DBG("%s status %d", hdev->name, status);
+
+	hci_req_complete(hdev, HCI_OP_INQUIRY, status);
+
+	hci_conn_check_pending(hdev);
+
+	if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
+		return;
+
+	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
+		return;
+
+	hci_dev_lock(hdev);
+
+	if (discov->state != DISCOVERY_FINDING)
+		goto unlock;
+
+	if (list_empty(&discov->resolve)) {
+		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+		goto unlock;
+	}
+
+	e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
+	if (e && hci_resolve_name(hdev, e) == 0) {
+		e->name_state = NAME_PENDING;
+		hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
+	} else {
+		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct inquiry_data data;
+	struct inquiry_info *info = (void *) (skb->data + 1);
+	int num_rsp = *((__u8 *) skb->data);
+
+	BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
+
+	if (!num_rsp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	for (; num_rsp; num_rsp--, info++) {
+		bool name_known, ssp;
+
+		bacpy(&data.bdaddr, &info->bdaddr);
+		data.pscan_rep_mode	= info->pscan_rep_mode;
+		data.pscan_period_mode	= info->pscan_period_mode;
+		data.pscan_mode		= info->pscan_mode;
+		memcpy(data.dev_class, info->dev_class, 3);
+		data.clock_offset	= info->clock_offset;
+		data.rssi		= 0x00;
+		data.ssp_mode		= 0x00;
+
+		name_known = hci_inquiry_cache_update(hdev, &data, false, &ssp);
+		mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
+				  info->dev_class, 0, !name_known, ssp, NULL,
+				  0);
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_conn_complete *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
+	if (!conn) {
+		if (ev->link_type != SCO_LINK)
+			goto unlock;
+
+		conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
+		if (!conn)
+			goto unlock;
+
+		conn->type = SCO_LINK;
+	}
+
+	if (!ev->status) {
+		conn->handle = __le16_to_cpu(ev->handle);
+
+		if (conn->type == ACL_LINK) {
+			conn->state = BT_CONFIG;
+			hci_conn_hold(conn);
+			conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+		} else
+			conn->state = BT_CONNECTED;
+
+		hci_conn_hold_device(conn);
+		hci_conn_add_sysfs(conn);
+
+		if (test_bit(HCI_AUTH, &hdev->flags))
+			conn->link_mode |= HCI_LM_AUTH;
+
+		if (test_bit(HCI_ENCRYPT, &hdev->flags))
+			conn->link_mode |= HCI_LM_ENCRYPT;
+
+		/* Get remote features */
+		if (conn->type == ACL_LINK) {
+			struct hci_cp_read_remote_features cp;
+			cp.handle = ev->handle;
+			hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
+				     sizeof(cp), &cp);
+		}
+
+		/* Set packet type for incoming connection */
+		if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
+			struct hci_cp_change_conn_ptype cp;
+			cp.handle = ev->handle;
+			cp.pkt_type = cpu_to_le16(conn->pkt_type);
+			hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
+				     &cp);
+		}
+	} else {
+		conn->state = BT_CLOSED;
+		if (conn->type == ACL_LINK)
+			mgmt_connect_failed(hdev, &ev->bdaddr, conn->type,
+					    conn->dst_type, ev->status);
+	}
+
+	if (conn->type == ACL_LINK)
+		hci_sco_setup(conn, ev->status);
+
+	if (ev->status) {
+		hci_proto_connect_cfm(conn, ev->status);
+		hci_conn_del(conn);
+	} else if (ev->link_type != ACL_LINK)
+		hci_proto_connect_cfm(conn, ev->status);
+
+unlock:
+	hci_dev_unlock(hdev);
+
+	hci_conn_check_pending(hdev);
+}
+
+static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_conn_request *ev = (void *) skb->data;
+	int mask = hdev->link_mode;
+
+	BT_DBG("%s bdaddr %s type 0x%x", hdev->name,
+					batostr(&ev->bdaddr), ev->link_type);
+
+	mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
+
+	if ((mask & HCI_LM_ACCEPT) &&
+			!hci_blacklist_lookup(hdev, &ev->bdaddr)) {
+		/* Connection accepted */
+		struct inquiry_entry *ie;
+		struct hci_conn *conn;
+
+		hci_dev_lock(hdev);
+
+		ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
+		if (ie)
+			memcpy(ie->data.dev_class, ev->dev_class, 3);
+
+		conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
+		if (!conn) {
+			conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr);
+			if (!conn) {
+				BT_ERR("No memory for new connection");
+				hci_dev_unlock(hdev);
+				return;
+			}
+		}
+
+		memcpy(conn->dev_class, ev->dev_class, 3);
+		conn->state = BT_CONNECT;
+
+		hci_dev_unlock(hdev);
+
+		if (ev->link_type == ACL_LINK || !lmp_esco_capable(hdev)) {
+			struct hci_cp_accept_conn_req cp;
+
+			bacpy(&cp.bdaddr, &ev->bdaddr);
+
+			if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
+				cp.role = 0x00; /* Become master */
+			else
+				cp.role = 0x01; /* Remain slave */
+
+			hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp),
+				     &cp);
+		} else {
+			struct hci_cp_accept_sync_conn_req cp;
+
+			bacpy(&cp.bdaddr, &ev->bdaddr);
+			cp.pkt_type = cpu_to_le16(conn->pkt_type);
+
+			cp.tx_bandwidth   = cpu_to_le32(0x00001f40);
+			cp.rx_bandwidth   = cpu_to_le32(0x00001f40);
+			cp.max_latency    = cpu_to_le16(0xffff);
+			cp.content_format = cpu_to_le16(hdev->voice_setting);
+			cp.retrans_effort = 0xff;
+
+			hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ,
+				     sizeof(cp), &cp);
+		}
+	} else {
+		/* Connection rejected */
+		struct hci_cp_reject_conn_req cp;
+
+		bacpy(&cp.bdaddr, &ev->bdaddr);
+		cp.reason = HCI_ERROR_REJ_BAD_ADDR;
+		hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
+	}
+}
+
+static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_disconn_complete *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (!conn)
+		goto unlock;
+
+	if (ev->status == 0)
+		conn->state = BT_CLOSED;
+
+	if (test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags) &&
+			(conn->type == ACL_LINK || conn->type == LE_LINK)) {
+		if (ev->status != 0)
+			mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
+						conn->dst_type, ev->status);
+		else
+			mgmt_device_disconnected(hdev, &conn->dst, conn->type,
+						 conn->dst_type);
+	}
+
+	if (ev->status == 0) {
+		if (conn->type == ACL_LINK && conn->flush_key)
+			hci_remove_link_key(hdev, &conn->dst);
+		hci_proto_disconn_cfm(conn, ev->reason);
+		hci_conn_del(conn);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_auth_complete *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (!conn)
+		goto unlock;
+
+	if (!ev->status) {
+		if (!hci_conn_ssp_enabled(conn) &&
+				test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
+			BT_INFO("re-auth of legacy device is not possible.");
+		} else {
+			conn->link_mode |= HCI_LM_AUTH;
+			conn->sec_level = conn->pending_sec_level;
+		}
+	} else {
+		mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
+				 ev->status);
+	}
+
+	clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
+	clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
+
+	if (conn->state == BT_CONFIG) {
+		if (!ev->status && hci_conn_ssp_enabled(conn)) {
+			struct hci_cp_set_conn_encrypt cp;
+			cp.handle  = ev->handle;
+			cp.encrypt = 0x01;
+			hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
+									&cp);
+		} else {
+			conn->state = BT_CONNECTED;
+			hci_proto_connect_cfm(conn, ev->status);
+			hci_conn_put(conn);
+		}
+	} else {
+		hci_auth_cfm(conn, ev->status);
+
+		hci_conn_hold(conn);
+		conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+		hci_conn_put(conn);
+	}
+
+	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
+		if (!ev->status) {
+			struct hci_cp_set_conn_encrypt cp;
+			cp.handle  = ev->handle;
+			cp.encrypt = 0x01;
+			hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
+									&cp);
+		} else {
+			clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
+			hci_encrypt_cfm(conn, ev->status, 0x00);
+		}
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_remote_name *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_conn_check_pending(hdev);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+
+	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
+		goto check_auth;
+
+	if (ev->status == 0)
+		hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
+				       strnlen(ev->name, HCI_MAX_NAME_LENGTH));
+	else
+		hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
+
+check_auth:
+	if (!conn)
+		goto unlock;
+
+	if (!hci_outgoing_auth_needed(hdev, conn))
+		goto unlock;
+
+	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
+		struct hci_cp_auth_requested cp;
+		cp.handle = __cpu_to_le16(conn->handle);
+		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_encrypt_change *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (conn) {
+		if (!ev->status) {
+			if (ev->encrypt) {
+				/* Encryption implies authentication */
+				conn->link_mode |= HCI_LM_AUTH;
+				conn->link_mode |= HCI_LM_ENCRYPT;
+				conn->sec_level = conn->pending_sec_level;
+			} else
+				conn->link_mode &= ~HCI_LM_ENCRYPT;
+		}
+
+		clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
+
+		if (ev->status && conn->state == BT_CONNECTED) {
+			hci_acl_disconn(conn, 0x13);
+			hci_conn_put(conn);
+			goto unlock;
+		}
+
+		if (conn->state == BT_CONFIG) {
+			if (!ev->status)
+				conn->state = BT_CONNECTED;
+
+			hci_proto_connect_cfm(conn, ev->status);
+			hci_conn_put(conn);
+		} else
+			hci_encrypt_cfm(conn, ev->status, ev->encrypt);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_change_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (conn) {
+		if (!ev->status)
+			conn->link_mode |= HCI_LM_SECURE;
+
+		clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
+
+		hci_key_change_cfm(conn, ev->status);
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_remote_features *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (!conn)
+		goto unlock;
+
+	if (!ev->status)
+		memcpy(conn->features, ev->features, 8);
+
+	if (conn->state != BT_CONFIG)
+		goto unlock;
+
+	if (!ev->status && lmp_ssp_capable(hdev) && lmp_ssp_capable(conn)) {
+		struct hci_cp_read_remote_ext_features cp;
+		cp.handle = ev->handle;
+		cp.page = 0x01;
+		hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
+							sizeof(cp), &cp);
+		goto unlock;
+	}
+
+	if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
+		struct hci_cp_remote_name_req cp;
+		memset(&cp, 0, sizeof(cp));
+		bacpy(&cp.bdaddr, &conn->dst);
+		cp.pscan_rep_mode = 0x02;
+		hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
+	} else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
+		mgmt_device_connected(hdev, &conn->dst, conn->type,
+				      conn->dst_type, 0, NULL, 0,
+				      conn->dev_class);
+
+	if (!hci_outgoing_auth_needed(hdev, conn)) {
+		conn->state = BT_CONNECTED;
+		hci_proto_connect_cfm(conn, ev->status);
+		hci_conn_put(conn);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_remote_version_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	BT_DBG("%s", hdev->name);
+}
+
+static inline void hci_qos_setup_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	BT_DBG("%s", hdev->name);
+}
+
+static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_cmd_complete *ev = (void *) skb->data;
+	__u16 opcode;
+
+	skb_pull(skb, sizeof(*ev));
+
+	opcode = __le16_to_cpu(ev->opcode);
+
+	switch (opcode) {
+	case HCI_OP_INQUIRY_CANCEL:
+		hci_cc_inquiry_cancel(hdev, skb);
+		break;
+
+	case HCI_OP_EXIT_PERIODIC_INQ:
+		hci_cc_exit_periodic_inq(hdev, skb);
+		break;
+
+	case HCI_OP_REMOTE_NAME_REQ_CANCEL:
+		hci_cc_remote_name_req_cancel(hdev, skb);
+		break;
+
+	case HCI_OP_ROLE_DISCOVERY:
+		hci_cc_role_discovery(hdev, skb);
+		break;
+
+	case HCI_OP_READ_LINK_POLICY:
+		hci_cc_read_link_policy(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_LINK_POLICY:
+		hci_cc_write_link_policy(hdev, skb);
+		break;
+
+	case HCI_OP_READ_DEF_LINK_POLICY:
+		hci_cc_read_def_link_policy(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_DEF_LINK_POLICY:
+		hci_cc_write_def_link_policy(hdev, skb);
+		break;
+
+	case HCI_OP_RESET:
+		hci_cc_reset(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_LOCAL_NAME:
+		hci_cc_write_local_name(hdev, skb);
+		break;
+
+	case HCI_OP_READ_LOCAL_NAME:
+		hci_cc_read_local_name(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_AUTH_ENABLE:
+		hci_cc_write_auth_enable(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_ENCRYPT_MODE:
+		hci_cc_write_encrypt_mode(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_SCAN_ENABLE:
+		hci_cc_write_scan_enable(hdev, skb);
+		break;
+
+	case HCI_OP_READ_CLASS_OF_DEV:
+		hci_cc_read_class_of_dev(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_CLASS_OF_DEV:
+		hci_cc_write_class_of_dev(hdev, skb);
+		break;
+
+	case HCI_OP_READ_VOICE_SETTING:
+		hci_cc_read_voice_setting(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_VOICE_SETTING:
+		hci_cc_write_voice_setting(hdev, skb);
+		break;
+
+	case HCI_OP_HOST_BUFFER_SIZE:
+		hci_cc_host_buffer_size(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_SSP_MODE:
+		hci_cc_write_ssp_mode(hdev, skb);
+		break;
+
+	case HCI_OP_READ_LOCAL_VERSION:
+		hci_cc_read_local_version(hdev, skb);
+		break;
+
+	case HCI_OP_READ_LOCAL_COMMANDS:
+		hci_cc_read_local_commands(hdev, skb);
+		break;
+
+	case HCI_OP_READ_LOCAL_FEATURES:
+		hci_cc_read_local_features(hdev, skb);
+		break;
+
+	case HCI_OP_READ_LOCAL_EXT_FEATURES:
+		hci_cc_read_local_ext_features(hdev, skb);
+		break;
+
+	case HCI_OP_READ_BUFFER_SIZE:
+		hci_cc_read_buffer_size(hdev, skb);
+		break;
+
+	case HCI_OP_READ_BD_ADDR:
+		hci_cc_read_bd_addr(hdev, skb);
+		break;
+
+	case HCI_OP_READ_DATA_BLOCK_SIZE:
+		hci_cc_read_data_block_size(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_CA_TIMEOUT:
+		hci_cc_write_ca_timeout(hdev, skb);
+		break;
+
+	case HCI_OP_READ_FLOW_CONTROL_MODE:
+		hci_cc_read_flow_control_mode(hdev, skb);
+		break;
+
+	case HCI_OP_READ_LOCAL_AMP_INFO:
+		hci_cc_read_local_amp_info(hdev, skb);
+		break;
+
+	case HCI_OP_DELETE_STORED_LINK_KEY:
+		hci_cc_delete_stored_link_key(hdev, skb);
+		break;
+
+	case HCI_OP_SET_EVENT_MASK:
+		hci_cc_set_event_mask(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_INQUIRY_MODE:
+		hci_cc_write_inquiry_mode(hdev, skb);
+		break;
+
+	case HCI_OP_READ_INQ_RSP_TX_POWER:
+		hci_cc_read_inq_rsp_tx_power(hdev, skb);
+		break;
+
+	case HCI_OP_SET_EVENT_FLT:
+		hci_cc_set_event_flt(hdev, skb);
+		break;
+
+	case HCI_OP_PIN_CODE_REPLY:
+		hci_cc_pin_code_reply(hdev, skb);
+		break;
+
+	case HCI_OP_PIN_CODE_NEG_REPLY:
+		hci_cc_pin_code_neg_reply(hdev, skb);
+		break;
+
+	case HCI_OP_READ_LOCAL_OOB_DATA:
+		hci_cc_read_local_oob_data_reply(hdev, skb);
+		break;
+
+	case HCI_OP_LE_READ_BUFFER_SIZE:
+		hci_cc_le_read_buffer_size(hdev, skb);
+		break;
+
+	case HCI_OP_USER_CONFIRM_REPLY:
+		hci_cc_user_confirm_reply(hdev, skb);
+		break;
+
+	case HCI_OP_USER_CONFIRM_NEG_REPLY:
+		hci_cc_user_confirm_neg_reply(hdev, skb);
+		break;
+
+	case HCI_OP_USER_PASSKEY_REPLY:
+		hci_cc_user_passkey_reply(hdev, skb);
+		break;
+
+	case HCI_OP_USER_PASSKEY_NEG_REPLY:
+		hci_cc_user_passkey_neg_reply(hdev, skb);
+		break;
+
+	case HCI_OP_LE_SET_SCAN_PARAM:
+		hci_cc_le_set_scan_param(hdev, skb);
+		break;
+
+	case HCI_OP_LE_SET_SCAN_ENABLE:
+		hci_cc_le_set_scan_enable(hdev, skb);
+		break;
+
+	case HCI_OP_LE_LTK_REPLY:
+		hci_cc_le_ltk_reply(hdev, skb);
+		break;
+
+	case HCI_OP_LE_LTK_NEG_REPLY:
+		hci_cc_le_ltk_neg_reply(hdev, skb);
+		break;
+
+	case HCI_OP_WRITE_LE_HOST_SUPPORTED:
+		hci_cc_write_le_host_supported(hdev, skb);
+		break;
+
+	default:
+		BT_DBG("%s opcode 0x%x", hdev->name, opcode);
+		break;
+	}
+
+	if (ev->opcode != HCI_OP_NOP)
+		del_timer(&hdev->cmd_timer);
+
+	if (ev->ncmd) {
+		atomic_set(&hdev->cmd_cnt, 1);
+		if (!skb_queue_empty(&hdev->cmd_q))
+			queue_work(hdev->workqueue, &hdev->cmd_work);
+	}
+}
+
+static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_cmd_status *ev = (void *) skb->data;
+	__u16 opcode;
+
+	skb_pull(skb, sizeof(*ev));
+
+	opcode = __le16_to_cpu(ev->opcode);
+
+	switch (opcode) {
+	case HCI_OP_INQUIRY:
+		hci_cs_inquiry(hdev, ev->status);
+		break;
+
+	case HCI_OP_CREATE_CONN:
+		hci_cs_create_conn(hdev, ev->status);
+		break;
+
+	case HCI_OP_ADD_SCO:
+		hci_cs_add_sco(hdev, ev->status);
+		break;
+
+	case HCI_OP_AUTH_REQUESTED:
+		hci_cs_auth_requested(hdev, ev->status);
+		break;
+
+	case HCI_OP_SET_CONN_ENCRYPT:
+		hci_cs_set_conn_encrypt(hdev, ev->status);
+		break;
+
+	case HCI_OP_REMOTE_NAME_REQ:
+		hci_cs_remote_name_req(hdev, ev->status);
+		break;
+
+	case HCI_OP_READ_REMOTE_FEATURES:
+		hci_cs_read_remote_features(hdev, ev->status);
+		break;
+
+	case HCI_OP_READ_REMOTE_EXT_FEATURES:
+		hci_cs_read_remote_ext_features(hdev, ev->status);
+		break;
+
+	case HCI_OP_SETUP_SYNC_CONN:
+		hci_cs_setup_sync_conn(hdev, ev->status);
+		break;
+
+	case HCI_OP_SNIFF_MODE:
+		hci_cs_sniff_mode(hdev, ev->status);
+		break;
+
+	case HCI_OP_EXIT_SNIFF_MODE:
+		hci_cs_exit_sniff_mode(hdev, ev->status);
+		break;
+
+	case HCI_OP_DISCONNECT:
+		hci_cs_disconnect(hdev, ev->status);
+		break;
+
+	case HCI_OP_LE_CREATE_CONN:
+		hci_cs_le_create_conn(hdev, ev->status);
+		break;
+
+	case HCI_OP_LE_START_ENC:
+		hci_cs_le_start_enc(hdev, ev->status);
+		break;
+
+	default:
+		BT_DBG("%s opcode 0x%x", hdev->name, opcode);
+		break;
+	}
+
+	if (ev->opcode != HCI_OP_NOP)
+		del_timer(&hdev->cmd_timer);
+
+	if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
+		atomic_set(&hdev->cmd_cnt, 1);
+		if (!skb_queue_empty(&hdev->cmd_q))
+			queue_work(hdev->workqueue, &hdev->cmd_work);
+	}
+}
+
+static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_role_change *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (conn) {
+		if (!ev->status) {
+			if (ev->role)
+				conn->link_mode &= ~HCI_LM_MASTER;
+			else
+				conn->link_mode |= HCI_LM_MASTER;
+		}
+
+		clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
+
+		hci_role_switch_cfm(conn, ev->status, ev->role);
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
+	int i;
+
+	if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
+		BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
+		return;
+	}
+
+	if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
+			ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
+		BT_DBG("%s bad parameters", hdev->name);
+		return;
+	}
+
+	BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
+
+	for (i = 0; i < ev->num_hndl; i++) {
+		struct hci_comp_pkts_info *info = &ev->handles[i];
+		struct hci_conn *conn;
+		__u16  handle, count;
+
+		handle = __le16_to_cpu(info->handle);
+		count  = __le16_to_cpu(info->count);
+
+		conn = hci_conn_hash_lookup_handle(hdev, handle);
+		if (!conn)
+			continue;
+
+		conn->sent -= count;
+
+		switch (conn->type) {
+		case ACL_LINK:
+			hdev->acl_cnt += count;
+			if (hdev->acl_cnt > hdev->acl_pkts)
+				hdev->acl_cnt = hdev->acl_pkts;
+			break;
+
+		case LE_LINK:
+			if (hdev->le_pkts) {
+				hdev->le_cnt += count;
+				if (hdev->le_cnt > hdev->le_pkts)
+					hdev->le_cnt = hdev->le_pkts;
+			} else {
+				hdev->acl_cnt += count;
+				if (hdev->acl_cnt > hdev->acl_pkts)
+					hdev->acl_cnt = hdev->acl_pkts;
+			}
+			break;
+
+		case SCO_LINK:
+			hdev->sco_cnt += count;
+			if (hdev->sco_cnt > hdev->sco_pkts)
+				hdev->sco_cnt = hdev->sco_pkts;
+			break;
+
+		default:
+			BT_ERR("Unknown type %d conn %p", conn->type, conn);
+			break;
+		}
+	}
+
+	queue_work(hdev->workqueue, &hdev->tx_work);
+}
+
+static inline void hci_num_comp_blocks_evt(struct hci_dev *hdev,
+					   struct sk_buff *skb)
+{
+	struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
+	int i;
+
+	if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
+		BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
+		return;
+	}
+
+	if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
+			ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
+		BT_DBG("%s bad parameters", hdev->name);
+		return;
+	}
+
+	BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
+								ev->num_hndl);
+
+	for (i = 0; i < ev->num_hndl; i++) {
+		struct hci_comp_blocks_info *info = &ev->handles[i];
+		struct hci_conn *conn;
+		__u16  handle, block_count;
+
+		handle = __le16_to_cpu(info->handle);
+		block_count = __le16_to_cpu(info->blocks);
+
+		conn = hci_conn_hash_lookup_handle(hdev, handle);
+		if (!conn)
+			continue;
+
+		conn->sent -= block_count;
+
+		switch (conn->type) {
+		case ACL_LINK:
+			hdev->block_cnt += block_count;
+			if (hdev->block_cnt > hdev->num_blocks)
+				hdev->block_cnt = hdev->num_blocks;
+			break;
+
+		default:
+			BT_ERR("Unknown type %d conn %p", conn->type, conn);
+			break;
+		}
+	}
+
+	queue_work(hdev->workqueue, &hdev->tx_work);
+}
+
+static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_mode_change *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (conn) {
+		conn->mode = ev->mode;
+		conn->interval = __le16_to_cpu(ev->interval);
+
+		if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) {
+			if (conn->mode == HCI_CM_ACTIVE)
+				set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
+			else
+				clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
+		}
+
+		if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
+			hci_sco_setup(conn, ev->status);
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_pin_code_req *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (!conn)
+		goto unlock;
+
+	if (conn->state == BT_CONNECTED) {
+		hci_conn_hold(conn);
+		conn->disc_timeout = HCI_PAIRING_TIMEOUT;
+		hci_conn_put(conn);
+	}
+
+	if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags))
+		hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
+					sizeof(ev->bdaddr), &ev->bdaddr);
+	else if (test_bit(HCI_MGMT, &hdev->dev_flags)) {
+		u8 secure;
+
+		if (conn->pending_sec_level == BT_SECURITY_HIGH)
+			secure = 1;
+		else
+			secure = 0;
+
+		mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_link_key_req *ev = (void *) skb->data;
+	struct hci_cp_link_key_reply cp;
+	struct hci_conn *conn;
+	struct link_key *key;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!test_bit(HCI_LINK_KEYS, &hdev->dev_flags))
+		return;
+
+	hci_dev_lock(hdev);
+
+	key = hci_find_link_key(hdev, &ev->bdaddr);
+	if (!key) {
+		BT_DBG("%s link key not found for %s", hdev->name,
+							batostr(&ev->bdaddr));
+		goto not_found;
+	}
+
+	BT_DBG("%s found key type %u for %s", hdev->name, key->type,
+							batostr(&ev->bdaddr));
+
+	if (!test_bit(HCI_DEBUG_KEYS, &hdev->dev_flags) &&
+				key->type == HCI_LK_DEBUG_COMBINATION) {
+		BT_DBG("%s ignoring debug key", hdev->name);
+		goto not_found;
+	}
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (conn) {
+		if (key->type == HCI_LK_UNAUTH_COMBINATION &&
+				conn->auth_type != 0xff &&
+				(conn->auth_type & 0x01)) {
+			BT_DBG("%s ignoring unauthenticated key", hdev->name);
+			goto not_found;
+		}
+
+		if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
+				conn->pending_sec_level == BT_SECURITY_HIGH) {
+			BT_DBG("%s ignoring key unauthenticated for high \
+							security", hdev->name);
+			goto not_found;
+		}
+
+		conn->key_type = key->type;
+		conn->pin_length = key->pin_len;
+	}
+
+	bacpy(&cp.bdaddr, &ev->bdaddr);
+	memcpy(cp.link_key, key->val, 16);
+
+	hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
+
+	hci_dev_unlock(hdev);
+
+	return;
+
+not_found:
+	hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_link_key_notify *ev = (void *) skb->data;
+	struct hci_conn *conn;
+	u8 pin_len = 0;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (conn) {
+		hci_conn_hold(conn);
+		conn->disc_timeout = HCI_DISCONN_TIMEOUT;
+		pin_len = conn->pin_length;
+
+		if (ev->key_type != HCI_LK_CHANGED_COMBINATION)
+			conn->key_type = ev->key_type;
+
+		hci_conn_put(conn);
+	}
+
+	if (test_bit(HCI_LINK_KEYS, &hdev->dev_flags))
+		hci_add_link_key(hdev, conn, 1, &ev->bdaddr, ev->link_key,
+							ev->key_type, pin_len);
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_clock_offset *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (conn && !ev->status) {
+		struct inquiry_entry *ie;
+
+		ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
+		if (ie) {
+			ie->data.clock_offset = ev->clock_offset;
+			ie->timestamp = jiffies;
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_pkt_type_change *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (conn && !ev->status)
+		conn->pkt_type = __le16_to_cpu(ev->pkt_type);
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
+	struct inquiry_entry *ie;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
+	if (ie) {
+		ie->data.pscan_rep_mode = ev->pscan_rep_mode;
+		ie->timestamp = jiffies;
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct inquiry_data data;
+	int num_rsp = *((__u8 *) skb->data);
+	bool name_known, ssp;
+
+	BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
+
+	if (!num_rsp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
+		struct inquiry_info_with_rssi_and_pscan_mode *info;
+		info = (void *) (skb->data + 1);
+
+		for (; num_rsp; num_rsp--, info++) {
+			bacpy(&data.bdaddr, &info->bdaddr);
+			data.pscan_rep_mode	= info->pscan_rep_mode;
+			data.pscan_period_mode	= info->pscan_period_mode;
+			data.pscan_mode		= info->pscan_mode;
+			memcpy(data.dev_class, info->dev_class, 3);
+			data.clock_offset	= info->clock_offset;
+			data.rssi		= info->rssi;
+			data.ssp_mode		= 0x00;
+
+			name_known = hci_inquiry_cache_update(hdev, &data,
+							      false, &ssp);
+			mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
+					  info->dev_class, info->rssi,
+					  !name_known, ssp, NULL, 0);
+		}
+	} else {
+		struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
+
+		for (; num_rsp; num_rsp--, info++) {
+			bacpy(&data.bdaddr, &info->bdaddr);
+			data.pscan_rep_mode	= info->pscan_rep_mode;
+			data.pscan_period_mode	= info->pscan_period_mode;
+			data.pscan_mode		= 0x00;
+			memcpy(data.dev_class, info->dev_class, 3);
+			data.clock_offset	= info->clock_offset;
+			data.rssi		= info->rssi;
+			data.ssp_mode		= 0x00;
+			name_known = hci_inquiry_cache_update(hdev, &data,
+							      false, &ssp);
+			mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
+					  info->dev_class, info->rssi,
+					  !name_known, ssp, NULL, 0);
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_remote_ext_features *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (!conn)
+		goto unlock;
+
+	if (!ev->status && ev->page == 0x01) {
+		struct inquiry_entry *ie;
+
+		ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
+		if (ie)
+			ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
+
+		if (ev->features[0] & LMP_HOST_SSP)
+			set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
+	}
+
+	if (conn->state != BT_CONFIG)
+		goto unlock;
+
+	if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
+		struct hci_cp_remote_name_req cp;
+		memset(&cp, 0, sizeof(cp));
+		bacpy(&cp.bdaddr, &conn->dst);
+		cp.pscan_rep_mode = 0x02;
+		hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
+	} else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
+		mgmt_device_connected(hdev, &conn->dst, conn->type,
+				      conn->dst_type, 0, NULL, 0,
+				      conn->dev_class);
+
+	if (!hci_outgoing_auth_needed(hdev, conn)) {
+		conn->state = BT_CONNECTED;
+		hci_proto_connect_cfm(conn, ev->status);
+		hci_conn_put(conn);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
+	if (!conn) {
+		if (ev->link_type == ESCO_LINK)
+			goto unlock;
+
+		conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
+		if (!conn)
+			goto unlock;
+
+		conn->type = SCO_LINK;
+	}
+
+	switch (ev->status) {
+	case 0x00:
+		conn->handle = __le16_to_cpu(ev->handle);
+		conn->state  = BT_CONNECTED;
+
+		hci_conn_hold_device(conn);
+		hci_conn_add_sysfs(conn);
+		break;
+
+	case 0x11:	/* Unsupported Feature or Parameter Value */
+	case 0x1c:	/* SCO interval rejected */
+	case 0x1a:	/* Unsupported Remote Feature */
+	case 0x1f:	/* Unspecified error */
+		if (conn->out && conn->attempt < 2) {
+			conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
+					(hdev->esco_type & EDR_ESCO_MASK);
+			hci_setup_sync(conn, conn->link->handle);
+			goto unlock;
+		}
+		/* fall through */
+
+	default:
+		conn->state = BT_CLOSED;
+		break;
+	}
+
+	hci_proto_connect_cfm(conn, ev->status);
+	if (ev->status)
+		hci_conn_del(conn);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_sync_conn_changed_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	BT_DBG("%s", hdev->name);
+}
+
+static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_sniff_subrate *ev = (void *) skb->data;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+}
+
+static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct inquiry_data data;
+	struct extended_inquiry_info *info = (void *) (skb->data + 1);
+	int num_rsp = *((__u8 *) skb->data);
+	size_t eir_len;
+
+	BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
+
+	if (!num_rsp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	for (; num_rsp; num_rsp--, info++) {
+		bool name_known, ssp;
+
+		bacpy(&data.bdaddr, &info->bdaddr);
+		data.pscan_rep_mode	= info->pscan_rep_mode;
+		data.pscan_period_mode	= info->pscan_period_mode;
+		data.pscan_mode		= 0x00;
+		memcpy(data.dev_class, info->dev_class, 3);
+		data.clock_offset	= info->clock_offset;
+		data.rssi		= info->rssi;
+		data.ssp_mode		= 0x01;
+
+		if (test_bit(HCI_MGMT, &hdev->dev_flags))
+			name_known = eir_has_data_type(info->data,
+						       sizeof(info->data),
+						       EIR_NAME_COMPLETE);
+		else
+			name_known = true;
+
+		name_known = hci_inquiry_cache_update(hdev, &data, name_known,
+						      &ssp);
+		eir_len = eir_get_length(info->data, sizeof(info->data));
+		mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
+				  info->dev_class, info->rssi, !name_known,
+				  ssp, info->data, eir_len);
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static inline u8 hci_get_auth_req(struct hci_conn *conn)
+{
+	/* If remote requests dedicated bonding follow that lead */
+	if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03) {
+		/* If both remote and local IO capabilities allow MITM
+		 * protection then require it, otherwise don't */
+		if (conn->remote_cap == 0x03 || conn->io_capability == 0x03)
+			return 0x02;
+		else
+			return 0x03;
+	}
+
+	/* If remote requests no-bonding follow that lead */
+	if (conn->remote_auth == 0x00 || conn->remote_auth == 0x01)
+		return conn->remote_auth | (conn->auth_type & 0x01);
+
+	return conn->auth_type;
+}
+
+static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_io_capa_request *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (!conn)
+		goto unlock;
+
+	hci_conn_hold(conn);
+
+	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
+		goto unlock;
+
+	if (test_bit(HCI_PAIRABLE, &hdev->dev_flags) ||
+			(conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
+		struct hci_cp_io_capability_reply cp;
+
+		bacpy(&cp.bdaddr, &ev->bdaddr);
+		/* Change the IO capability from KeyboardDisplay
+		 * to DisplayYesNo as it is not supported by BT spec. */
+		cp.capability = (conn->io_capability == 0x04) ?
+						0x01 : conn->io_capability;
+		conn->auth_type = hci_get_auth_req(conn);
+		cp.authentication = conn->auth_type;
+
+		if ((conn->out || test_bit(HCI_CONN_REMOTE_OOB, &conn->flags)) &&
+				hci_find_remote_oob_data(hdev, &conn->dst))
+			cp.oob_data = 0x01;
+		else
+			cp.oob_data = 0x00;
+
+		hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
+							sizeof(cp), &cp);
+	} else {
+		struct hci_cp_io_capability_neg_reply cp;
+
+		bacpy(&cp.bdaddr, &ev->bdaddr);
+		cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
+
+		hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
+							sizeof(cp), &cp);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_io_capa_reply *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (!conn)
+		goto unlock;
+
+	conn->remote_cap = ev->capability;
+	conn->remote_auth = ev->authentication;
+	if (ev->oob_data)
+		set_bit(HCI_CONN_REMOTE_OOB, &conn->flags);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	struct hci_ev_user_confirm_req *ev = (void *) skb->data;
+	int loc_mitm, rem_mitm, confirm_hint = 0;
+	struct hci_conn *conn;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
+		goto unlock;
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (!conn)
+		goto unlock;
+
+	loc_mitm = (conn->auth_type & 0x01);
+	rem_mitm = (conn->remote_auth & 0x01);
+
+	/* If we require MITM but the remote device can't provide that
+	 * (it has NoInputNoOutput) then reject the confirmation
+	 * request. The only exception is when we're dedicated bonding
+	 * initiators (connect_cfm_cb set) since then we always have the MITM
+	 * bit set. */
+	if (!conn->connect_cfm_cb && loc_mitm && conn->remote_cap == 0x03) {
+		BT_DBG("Rejecting request: remote device can't provide MITM");
+		hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
+					sizeof(ev->bdaddr), &ev->bdaddr);
+		goto unlock;
+	}
+
+	/* If no side requires MITM protection; auto-accept */
+	if ((!loc_mitm || conn->remote_cap == 0x03) &&
+				(!rem_mitm || conn->io_capability == 0x03)) {
+
+		/* If we're not the initiators request authorization to
+		 * proceed from user space (mgmt_user_confirm with
+		 * confirm_hint set to 1). */
+		if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
+			BT_DBG("Confirming auto-accept as acceptor");
+			confirm_hint = 1;
+			goto confirm;
+		}
+
+		BT_DBG("Auto-accept of user confirmation with %ums delay",
+						hdev->auto_accept_delay);
+
+		if (hdev->auto_accept_delay > 0) {
+			int delay = msecs_to_jiffies(hdev->auto_accept_delay);
+			mod_timer(&conn->auto_accept_timer, jiffies + delay);
+			goto unlock;
+		}
+
+		hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
+						sizeof(ev->bdaddr), &ev->bdaddr);
+		goto unlock;
+	}
+
+confirm:
+	mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0, ev->passkey,
+				  confirm_hint);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_user_passkey_request_evt(struct hci_dev *hdev,
+							struct sk_buff *skb)
+{
+	struct hci_ev_user_passkey_req *ev = (void *) skb->data;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
+		mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+	if (!conn)
+		goto unlock;
+
+	/* To avoid duplicate auth_failed events to user space we check
+	 * the HCI_CONN_AUTH_PEND flag which will be set if we
+	 * initiated the authentication. A traditional auth_complete
+	 * event gets always produced as initiator and is also mapped to
+	 * the mgmt_auth_failed event */
+	if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status != 0)
+		mgmt_auth_failed(hdev, &conn->dst, conn->type, conn->dst_type,
+				 ev->status);
+
+	hci_conn_put(conn);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_remote_host_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_remote_host_features *ev = (void *) skb->data;
+	struct inquiry_entry *ie;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
+	if (ie)
+		ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
+						   struct sk_buff *skb)
+{
+	struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
+	struct oob_data *data;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
+		goto unlock;
+
+	data = hci_find_remote_oob_data(hdev, &ev->bdaddr);
+	if (data) {
+		struct hci_cp_remote_oob_data_reply cp;
+
+		bacpy(&cp.bdaddr, &ev->bdaddr);
+		memcpy(cp.hash, data->hash, sizeof(cp.hash));
+		memcpy(cp.randomizer, data->randomizer, sizeof(cp.randomizer));
+
+		hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY, sizeof(cp),
+									&cp);
+	} else {
+		struct hci_cp_remote_oob_data_neg_reply cp;
+
+		bacpy(&cp.bdaddr, &ev->bdaddr);
+		hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY, sizeof(cp),
+									&cp);
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_le_conn_complete *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &ev->bdaddr);
+	if (!conn) {
+		conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr);
+		if (!conn) {
+			BT_ERR("No memory for new connection");
+			hci_dev_unlock(hdev);
+			return;
+		}
+
+		conn->dst_type = ev->bdaddr_type;
+	}
+
+	if (ev->status) {
+		mgmt_connect_failed(hdev, &ev->bdaddr, conn->type,
+						conn->dst_type, ev->status);
+		hci_proto_connect_cfm(conn, ev->status);
+		conn->state = BT_CLOSED;
+		hci_conn_del(conn);
+		goto unlock;
+	}
+
+	if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
+		mgmt_device_connected(hdev, &ev->bdaddr, conn->type,
+				      conn->dst_type, 0, NULL, 0, NULL);
+
+	conn->sec_level = BT_SECURITY_LOW;
+	conn->handle = __le16_to_cpu(ev->handle);
+	conn->state = BT_CONNECTED;
+
+	hci_conn_hold_device(conn);
+	hci_conn_add_sysfs(conn);
+
+	hci_proto_connect_cfm(conn, ev->status);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_le_adv_report_evt(struct hci_dev *hdev,
+						struct sk_buff *skb)
+{
+	u8 num_reports = skb->data[0];
+	void *ptr = &skb->data[1];
+	s8 rssi;
+
+	hci_dev_lock(hdev);
+
+	while (num_reports--) {
+		struct hci_ev_le_advertising_info *ev = ptr;
+
+		hci_add_adv_entry(hdev, ev);
+
+		rssi = ev->data[ev->length];
+		mgmt_device_found(hdev, &ev->bdaddr, LE_LINK, ev->bdaddr_type,
+				  NULL, rssi, 0, 1, ev->data, ev->length);
+
+		ptr += sizeof(*ev) + ev->length + 1;
+	}
+
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_le_ltk_request_evt(struct hci_dev *hdev,
+						struct sk_buff *skb)
+{
+	struct hci_ev_le_ltk_req *ev = (void *) skb->data;
+	struct hci_cp_le_ltk_reply cp;
+	struct hci_cp_le_ltk_neg_reply neg;
+	struct hci_conn *conn;
+	struct smp_ltk *ltk;
+
+	BT_DBG("%s handle %d", hdev->name, cpu_to_le16(ev->handle));
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (conn == NULL)
+		goto not_found;
+
+	ltk = hci_find_ltk(hdev, ev->ediv, ev->random);
+	if (ltk == NULL)
+		goto not_found;
+
+	memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
+	cp.handle = cpu_to_le16(conn->handle);
+
+	if (ltk->authenticated)
+		conn->sec_level = BT_SECURITY_HIGH;
+
+	hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
+
+	if (ltk->type & HCI_SMP_STK) {
+		list_del(&ltk->list);
+		kfree(ltk);
+	}
+
+	hci_dev_unlock(hdev);
+
+	return;
+
+not_found:
+	neg.handle = ev->handle;
+	hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
+	hci_dev_unlock(hdev);
+}
+
+static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_le_meta *le_ev = (void *) skb->data;
+
+	skb_pull(skb, sizeof(*le_ev));
+
+	switch (le_ev->subevent) {
+	case HCI_EV_LE_CONN_COMPLETE:
+		hci_le_conn_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_LE_ADVERTISING_REPORT:
+		hci_le_adv_report_evt(hdev, skb);
+		break;
+
+	case HCI_EV_LE_LTK_REQ:
+		hci_le_ltk_request_evt(hdev, skb);
+		break;
+
+	default:
+		break;
+	}
+}
+
+void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_event_hdr *hdr = (void *) skb->data;
+	__u8 event = hdr->evt;
+
+	skb_pull(skb, HCI_EVENT_HDR_SIZE);
+
+	switch (event) {
+	case HCI_EV_INQUIRY_COMPLETE:
+		hci_inquiry_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_INQUIRY_RESULT:
+		hci_inquiry_result_evt(hdev, skb);
+		break;
+
+	case HCI_EV_CONN_COMPLETE:
+		hci_conn_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_CONN_REQUEST:
+		hci_conn_request_evt(hdev, skb);
+		break;
+
+	case HCI_EV_DISCONN_COMPLETE:
+		hci_disconn_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_AUTH_COMPLETE:
+		hci_auth_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_REMOTE_NAME:
+		hci_remote_name_evt(hdev, skb);
+		break;
+
+	case HCI_EV_ENCRYPT_CHANGE:
+		hci_encrypt_change_evt(hdev, skb);
+		break;
+
+	case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
+		hci_change_link_key_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_REMOTE_FEATURES:
+		hci_remote_features_evt(hdev, skb);
+		break;
+
+	case HCI_EV_REMOTE_VERSION:
+		hci_remote_version_evt(hdev, skb);
+		break;
+
+	case HCI_EV_QOS_SETUP_COMPLETE:
+		hci_qos_setup_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_CMD_COMPLETE:
+		hci_cmd_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_CMD_STATUS:
+		hci_cmd_status_evt(hdev, skb);
+		break;
+
+	case HCI_EV_ROLE_CHANGE:
+		hci_role_change_evt(hdev, skb);
+		break;
+
+	case HCI_EV_NUM_COMP_PKTS:
+		hci_num_comp_pkts_evt(hdev, skb);
+		break;
+
+	case HCI_EV_MODE_CHANGE:
+		hci_mode_change_evt(hdev, skb);
+		break;
+
+	case HCI_EV_PIN_CODE_REQ:
+		hci_pin_code_request_evt(hdev, skb);
+		break;
+
+	case HCI_EV_LINK_KEY_REQ:
+		hci_link_key_request_evt(hdev, skb);
+		break;
+
+	case HCI_EV_LINK_KEY_NOTIFY:
+		hci_link_key_notify_evt(hdev, skb);
+		break;
+
+	case HCI_EV_CLOCK_OFFSET:
+		hci_clock_offset_evt(hdev, skb);
+		break;
+
+	case HCI_EV_PKT_TYPE_CHANGE:
+		hci_pkt_type_change_evt(hdev, skb);
+		break;
+
+	case HCI_EV_PSCAN_REP_MODE:
+		hci_pscan_rep_mode_evt(hdev, skb);
+		break;
+
+	case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
+		hci_inquiry_result_with_rssi_evt(hdev, skb);
+		break;
+
+	case HCI_EV_REMOTE_EXT_FEATURES:
+		hci_remote_ext_features_evt(hdev, skb);
+		break;
+
+	case HCI_EV_SYNC_CONN_COMPLETE:
+		hci_sync_conn_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_SYNC_CONN_CHANGED:
+		hci_sync_conn_changed_evt(hdev, skb);
+		break;
+
+	case HCI_EV_SNIFF_SUBRATE:
+		hci_sniff_subrate_evt(hdev, skb);
+		break;
+
+	case HCI_EV_EXTENDED_INQUIRY_RESULT:
+		hci_extended_inquiry_result_evt(hdev, skb);
+		break;
+
+	case HCI_EV_IO_CAPA_REQUEST:
+		hci_io_capa_request_evt(hdev, skb);
+		break;
+
+	case HCI_EV_IO_CAPA_REPLY:
+		hci_io_capa_reply_evt(hdev, skb);
+		break;
+
+	case HCI_EV_USER_CONFIRM_REQUEST:
+		hci_user_confirm_request_evt(hdev, skb);
+		break;
+
+	case HCI_EV_USER_PASSKEY_REQUEST:
+		hci_user_passkey_request_evt(hdev, skb);
+		break;
+
+	case HCI_EV_SIMPLE_PAIR_COMPLETE:
+		hci_simple_pair_complete_evt(hdev, skb);
+		break;
+
+	case HCI_EV_REMOTE_HOST_FEATURES:
+		hci_remote_host_features_evt(hdev, skb);
+		break;
+
+	case HCI_EV_LE_META:
+		hci_le_meta_evt(hdev, skb);
+		break;
+
+	case HCI_EV_REMOTE_OOB_DATA_REQUEST:
+		hci_remote_oob_data_request_evt(hdev, skb);
+		break;
+
+	case HCI_EV_NUM_COMP_BLOCKS:
+		hci_num_comp_blocks_evt(hdev, skb);
+		break;
+
+	default:
+		BT_DBG("%s event 0x%x", hdev->name, event);
+		break;
+	}
+
+	kfree_skb(skb);
+	hdev->stat.evt_rx++;
+}
+
+/* Generate internal stack event */
+void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
+{
+	struct hci_event_hdr *hdr;
+	struct hci_ev_stack_internal *ev;
+	struct sk_buff *skb;
+
+	skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
+	if (!skb)
+		return;
+
+	hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
+	hdr->evt  = HCI_EV_STACK_INTERNAL;
+	hdr->plen = sizeof(*ev) + dlen;
+
+	ev  = (void *) skb_put(skb, sizeof(*ev) + dlen);
+	ev->type = type;
+	memcpy(ev->data, data, dlen);
+
+	bt_cb(skb)->incoming = 1;
+	__net_timestamp(skb);
+
+	bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
+	skb->dev = (void *) hdev;
+	hci_send_to_sock(hdev, skb);
+	kfree_skb(skb);
+}
diff --git a/net/bluetooth_tizen/hci_sock.c b/net/bluetooth_tizen/hci_sock.c
new file mode 100644
index 0000000..63c1516
--- /dev/null
+++ b/net/bluetooth_tizen/hci_sock.c
@@ -0,0 +1,1102 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth HCI sockets. */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/interrupt.h>
+#include <linux/compat.h>
+#include <linux/socket.h>
+#include <linux/ioctl.h>
+#include <net/sock.h>
+
+#include <asm/system.h>
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/hci_mon.h>
+
+static atomic_t monitor_promisc = ATOMIC_INIT(0);
+
+/* ----- HCI socket interface ----- */
+
+static inline int hci_test_bit(int nr, void *addr)
+{
+	return *((__u32 *) addr + (nr >> 5)) & ((__u32) 1 << (nr & 31));
+}
+
+/* Security filter */
+static struct hci_sec_filter hci_sec_filter = {
+	/* Packet types */
+	0x10,
+	/* Events */
+	{ 0x1000d9fe, 0x0000b00c },
+	/* Commands */
+	{
+		{ 0x0 },
+		/* OGF_LINK_CTL */
+		{ 0xbe000006, 0x00000001, 0x00000000, 0x00 },
+		/* OGF_LINK_POLICY */
+		{ 0x00005200, 0x00000000, 0x00000000, 0x00 },
+		/* OGF_HOST_CTL */
+		{ 0xaab00200, 0x2b402aaa, 0x05220154, 0x00 },
+		/* OGF_INFO_PARAM */
+		{ 0x000002be, 0x00000000, 0x00000000, 0x00 },
+		/* OGF_STATUS_PARAM */
+		{ 0x000000ea, 0x00000000, 0x00000000, 0x00 }
+	}
+};
+
+static struct bt_sock_list hci_sk_list = {
+	.lock = __RW_LOCK_UNLOCKED(hci_sk_list.lock)
+};
+
+/* Send frame to RAW socket */
+void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+	struct sk_buff *skb_copy = NULL;
+
+	BT_DBG("hdev %p len %d", hdev, skb->len);
+
+	read_lock(&hci_sk_list.lock);
+
+	sk_for_each(sk, node, &hci_sk_list.head) {
+		struct hci_filter *flt;
+		struct sk_buff *nskb;
+
+		if (sk->sk_state != BT_BOUND || hci_pi(sk)->hdev != hdev)
+			continue;
+
+		/* Don't send frame to the socket it came from */
+		if (skb->sk == sk)
+			continue;
+
+		if (hci_pi(sk)->channel != HCI_CHANNEL_RAW)
+			continue;
+
+		/* Apply filter */
+		flt = &hci_pi(sk)->filter;
+
+		if (!test_bit((bt_cb(skb)->pkt_type == HCI_VENDOR_PKT) ?
+				0 : (bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS), &flt->type_mask))
+			continue;
+
+		if (bt_cb(skb)->pkt_type == HCI_EVENT_PKT) {
+			register int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
+
+			if (!hci_test_bit(evt, &flt->event_mask))
+				continue;
+
+			if (flt->opcode &&
+			    ((evt == HCI_EV_CMD_COMPLETE &&
+			      flt->opcode !=
+			      get_unaligned((__le16 *)(skb->data + 3))) ||
+			     (evt == HCI_EV_CMD_STATUS &&
+			      flt->opcode !=
+			      get_unaligned((__le16 *)(skb->data + 4)))))
+				continue;
+		}
+
+		if (!skb_copy) {
+			/* Create a private copy with headroom */
+			skb_copy = __pskb_copy(skb, 1, GFP_ATOMIC);
+			if (!skb_copy)
+				continue;
+
+			/* Put type byte before the data */
+			memcpy(skb_push(skb_copy, 1), &bt_cb(skb)->pkt_type, 1);
+		}
+
+		nskb = skb_clone(skb_copy, GFP_ATOMIC);
+		if (!nskb)
+			continue;
+
+		if (sock_queue_rcv_skb(sk, nskb))
+			kfree_skb(nskb);
+	}
+
+	read_unlock(&hci_sk_list.lock);
+
+	kfree_skb(skb_copy);
+}
+
+/* Send frame to control socket */
+void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+
+	BT_DBG("len %d", skb->len);
+
+	read_lock(&hci_sk_list.lock);
+
+	sk_for_each(sk, node, &hci_sk_list.head) {
+		struct sk_buff *nskb;
+
+		/* Skip the original socket */
+		if (sk == skip_sk)
+			continue;
+
+		if (sk->sk_state != BT_BOUND)
+			continue;
+
+		if (hci_pi(sk)->channel != HCI_CHANNEL_CONTROL)
+			continue;
+
+		nskb = skb_clone(skb, GFP_ATOMIC);
+		if (!nskb)
+			continue;
+
+		if (sock_queue_rcv_skb(sk, nskb))
+			kfree_skb(nskb);
+	}
+
+	read_unlock(&hci_sk_list.lock);
+}
+
+/* Send frame to monitor socket */
+void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+	struct sk_buff *skb_copy = NULL;
+	__le16 opcode;
+
+	if (!atomic_read(&monitor_promisc))
+		return;
+
+	BT_DBG("hdev %p len %d", hdev, skb->len);
+
+	switch (bt_cb(skb)->pkt_type) {
+	case HCI_COMMAND_PKT:
+		opcode = __constant_cpu_to_le16(HCI_MON_COMMAND_PKT);
+		break;
+	case HCI_EVENT_PKT:
+		opcode = __constant_cpu_to_le16(HCI_MON_EVENT_PKT);
+		break;
+	case HCI_ACLDATA_PKT:
+		if (bt_cb(skb)->incoming)
+			opcode = __constant_cpu_to_le16(HCI_MON_ACL_RX_PKT);
+		else
+			opcode = __constant_cpu_to_le16(HCI_MON_ACL_TX_PKT);
+		break;
+	case HCI_SCODATA_PKT:
+		if (bt_cb(skb)->incoming)
+			opcode = __constant_cpu_to_le16(HCI_MON_SCO_RX_PKT);
+		else
+			opcode = __constant_cpu_to_le16(HCI_MON_SCO_TX_PKT);
+		break;
+	default:
+		return;
+	}
+
+	read_lock(&hci_sk_list.lock);
+
+	sk_for_each(sk, node, &hci_sk_list.head) {
+		struct sk_buff *nskb;
+
+		if (sk->sk_state != BT_BOUND)
+			continue;
+
+		if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR)
+			continue;
+
+		if (!skb_copy) {
+			struct hci_mon_hdr *hdr;
+
+			/* Create a private copy with headroom */
+			skb_copy = __pskb_copy(skb, HCI_MON_HDR_SIZE, GFP_ATOMIC);
+			if (!skb_copy)
+				continue;
+
+			/* Put header before the data */
+			hdr = (void *) skb_push(skb_copy, HCI_MON_HDR_SIZE);
+			hdr->opcode = opcode;
+			hdr->index = cpu_to_le16(hdev->id);
+			hdr->len = cpu_to_le16(skb->len);
+		}
+
+		nskb = skb_clone(skb_copy, GFP_ATOMIC);
+		if (!nskb)
+			continue;
+
+		if (sock_queue_rcv_skb(sk, nskb))
+			kfree_skb(nskb);
+	}
+
+	read_unlock(&hci_sk_list.lock);
+
+	kfree_skb(skb_copy);
+}
+
+static void send_monitor_event(struct sk_buff *skb)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+
+	BT_DBG("len %d", skb->len);
+
+	read_lock(&hci_sk_list.lock);
+
+	sk_for_each(sk, node, &hci_sk_list.head) {
+		struct sk_buff *nskb;
+
+		if (sk->sk_state != BT_BOUND)
+			continue;
+
+		if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR)
+			continue;
+
+		nskb = skb_clone(skb, GFP_ATOMIC);
+		if (!nskb)
+			continue;
+
+		if (sock_queue_rcv_skb(sk, nskb))
+			kfree_skb(nskb);
+	}
+
+	read_unlock(&hci_sk_list.lock);
+}
+
+static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event)
+{
+	struct hci_mon_hdr *hdr;
+	struct hci_mon_new_index *ni;
+	struct sk_buff *skb;
+	__le16 opcode;
+
+	switch (event) {
+	case HCI_DEV_REG:
+		skb = bt_skb_alloc(HCI_MON_NEW_INDEX_SIZE, GFP_ATOMIC);
+		if (!skb)
+			return NULL;
+
+		ni = (void *) skb_put(skb, HCI_MON_NEW_INDEX_SIZE);
+		ni->type = hdev->dev_type;
+		ni->bus = hdev->bus;
+		bacpy(&ni->bdaddr, &hdev->bdaddr);
+		memcpy(ni->name, hdev->name, 8);
+
+		opcode = __constant_cpu_to_le16(HCI_MON_NEW_INDEX);
+		break;
+
+	case HCI_DEV_UNREG:
+		skb = bt_skb_alloc(0, GFP_ATOMIC);
+		if (!skb)
+			return NULL;
+
+		opcode = __constant_cpu_to_le16(HCI_MON_DEL_INDEX);
+		break;
+
+	default:
+		return NULL;
+	}
+
+	__net_timestamp(skb);
+
+	hdr = (void *) skb_push(skb, HCI_MON_HDR_SIZE);
+	hdr->opcode = opcode;
+	hdr->index = cpu_to_le16(hdev->id);
+	hdr->len = cpu_to_le16(skb->len - HCI_MON_HDR_SIZE);
+
+	return skb;
+}
+
+static void send_monitor_replay(struct sock *sk)
+{
+	struct hci_dev *hdev;
+
+	read_lock(&hci_dev_list_lock);
+
+	list_for_each_entry(hdev, &hci_dev_list, list) {
+		struct sk_buff *skb;
+
+		skb = create_monitor_event(hdev, HCI_DEV_REG);
+		if (!skb)
+			continue;
+
+		if (sock_queue_rcv_skb(sk, skb))
+			kfree_skb(skb);
+	}
+
+	read_unlock(&hci_dev_list_lock);
+}
+
+static int hci_sock_release(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+	struct hci_dev *hdev;
+
+	BT_DBG("sock %p sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	hdev = hci_pi(sk)->hdev;
+
+	if (hci_pi(sk)->channel == HCI_CHANNEL_MONITOR)
+		atomic_dec(&monitor_promisc);
+
+	bt_sock_unlink(&hci_sk_list, sk);
+
+	if (hdev) {
+		atomic_dec(&hdev->promisc);
+		hci_dev_put(hdev);
+	}
+
+	sock_orphan(sk);
+
+	skb_queue_purge(&sk->sk_receive_queue);
+	skb_queue_purge(&sk->sk_write_queue);
+
+	sock_put(sk);
+	return 0;
+}
+
+static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg)
+{
+	bdaddr_t bdaddr;
+	int err;
+
+	if (copy_from_user(&bdaddr, arg, sizeof(bdaddr)))
+		return -EFAULT;
+
+	hci_dev_lock(hdev);
+
+	err = hci_blacklist_add(hdev, &bdaddr, 0);
+
+	hci_dev_unlock(hdev);
+
+	return err;
+}
+
+static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg)
+{
+	bdaddr_t bdaddr;
+	int err;
+
+	if (copy_from_user(&bdaddr, arg, sizeof(bdaddr)))
+		return -EFAULT;
+
+	hci_dev_lock(hdev);
+
+	err = hci_blacklist_del(hdev, &bdaddr, 0);
+
+	hci_dev_unlock(hdev);
+
+	return err;
+}
+
+/* Ioctls that require bound socket */
+static inline int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, unsigned long arg)
+{
+	struct hci_dev *hdev = hci_pi(sk)->hdev;
+
+	if (!hdev)
+		return -EBADFD;
+
+	switch (cmd) {
+	case HCISETRAW:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+
+		if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
+			return -EPERM;
+
+		if (arg)
+			set_bit(HCI_RAW, &hdev->flags);
+		else
+			clear_bit(HCI_RAW, &hdev->flags);
+
+		return 0;
+
+	case HCIGETCONNINFO:
+		return hci_get_conn_info(hdev, (void __user *) arg);
+
+	case HCIGETAUTHINFO:
+		return hci_get_auth_info(hdev, (void __user *) arg);
+
+	case HCIBLOCKADDR:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+		return hci_sock_blacklist_add(hdev, (void __user *) arg);
+
+	case HCIUNBLOCKADDR:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+		return hci_sock_blacklist_del(hdev, (void __user *) arg);
+
+	default:
+		if (hdev->ioctl)
+			return hdev->ioctl(hdev, cmd, arg);
+		return -EINVAL;
+	}
+}
+
+static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+	struct sock *sk = sock->sk;
+	void __user *argp = (void __user *) arg;
+	int err;
+
+	BT_DBG("cmd %x arg %lx", cmd, arg);
+
+	switch (cmd) {
+	case HCIGETDEVLIST:
+		return hci_get_dev_list(argp);
+
+	case HCIGETDEVINFO:
+		return hci_get_dev_info(argp);
+
+	case HCIGETCONNLIST:
+		return hci_get_conn_list(argp);
+
+	case HCIDEVUP:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+		return hci_dev_open(arg);
+
+	case HCIDEVDOWN:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+		return hci_dev_close(arg);
+
+	case HCIDEVRESET:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+		return hci_dev_reset(arg);
+
+	case HCIDEVRESTAT:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+		return hci_dev_reset_stat(arg);
+
+	case HCISETSCAN:
+	case HCISETAUTH:
+	case HCISETENCRYPT:
+	case HCISETPTYPE:
+	case HCISETLINKPOL:
+	case HCISETLINKMODE:
+	case HCISETACLMTU:
+	case HCISETSCOMTU:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+		return hci_dev_cmd(cmd, argp);
+
+	case HCIINQUIRY:
+		return hci_inquiry(argp);
+
+	default:
+		lock_sock(sk);
+		err = hci_sock_bound_ioctl(sk, cmd, arg);
+		release_sock(sk);
+		return err;
+	}
+}
+
+static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
+{
+	struct sockaddr_hci haddr;
+	struct sock *sk = sock->sk;
+	struct hci_dev *hdev = NULL;
+	int len, err = 0;
+
+	BT_DBG("sock %p sk %p", sock, sk);
+
+	if (!addr)
+		return -EINVAL;
+
+	memset(&haddr, 0, sizeof(haddr));
+	len = min_t(unsigned int, sizeof(haddr), addr_len);
+	memcpy(&haddr, addr, len);
+
+	if (haddr.hci_family != AF_BLUETOOTH)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	if (sk->sk_state == BT_BOUND) {
+		err = -EALREADY;
+		goto done;
+	}
+
+	switch (haddr.hci_channel) {
+	case HCI_CHANNEL_RAW:
+		if (hci_pi(sk)->hdev) {
+			err = -EALREADY;
+			goto done;
+		}
+
+		if (haddr.hci_dev != HCI_DEV_NONE) {
+			hdev = hci_dev_get(haddr.hci_dev);
+			if (!hdev) {
+				err = -ENODEV;
+				goto done;
+			}
+
+			atomic_inc(&hdev->promisc);
+		}
+
+		hci_pi(sk)->hdev = hdev;
+		break;
+
+	case HCI_CHANNEL_CONTROL:
+		if (haddr.hci_dev != HCI_DEV_NONE) {
+			err = -EINVAL;
+			goto done;
+		}
+
+		if (!capable(CAP_NET_ADMIN)) {
+			err = -EPERM;
+			goto done;
+		}
+
+		break;
+
+	case HCI_CHANNEL_MONITOR:
+		if (haddr.hci_dev != HCI_DEV_NONE) {
+			err = -EINVAL;
+			goto done;
+		}
+
+		if (!capable(CAP_NET_RAW)) {
+			err = -EPERM;
+			goto done;
+		}
+
+		send_monitor_replay(sk);
+
+		atomic_inc(&monitor_promisc);
+		break;
+
+	default:
+		err = -EINVAL;
+		goto done;
+	}
+
+
+	hci_pi(sk)->channel = haddr.hci_channel;
+	sk->sk_state = BT_BOUND;
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, int *addr_len, int peer)
+{
+	struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
+	struct sock *sk = sock->sk;
+	struct hci_dev *hdev = hci_pi(sk)->hdev;
+
+	BT_DBG("sock %p sk %p", sock, sk);
+
+	if (!hdev)
+		return -EBADFD;
+
+	lock_sock(sk);
+
+	*addr_len = sizeof(*haddr);
+	haddr->hci_family = AF_BLUETOOTH;
+	haddr->hci_dev    = hdev->id;
+
+	release_sock(sk);
+	return 0;
+}
+
+static inline void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
+{
+	__u32 mask = hci_pi(sk)->cmsg_mask;
+
+	if (mask & HCI_CMSG_DIR) {
+		int incoming = bt_cb(skb)->incoming;
+		put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming), &incoming);
+	}
+
+	if (mask & HCI_CMSG_TSTAMP) {
+#ifdef CONFIG_COMPAT
+		struct compat_timeval ctv;
+#endif
+		struct timeval tv;
+		void *data;
+		int len;
+
+		skb_get_timestamp(skb, &tv);
+
+		data = &tv;
+		len = sizeof(tv);
+#ifdef CONFIG_COMPAT
+		if (msg->msg_flags & MSG_CMSG_COMPAT) {
+			ctv.tv_sec = tv.tv_sec;
+			ctv.tv_usec = tv.tv_usec;
+			data = &ctv;
+			len = sizeof(ctv);
+		}
+#endif
+
+		put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, len, data);
+	}
+}
+
+static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
+				struct msghdr *msg, size_t len, int flags)
+{
+	int noblock = flags & MSG_DONTWAIT;
+	struct sock *sk = sock->sk;
+	struct sk_buff *skb;
+	int copied, err;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	if (flags & (MSG_OOB))
+		return -EOPNOTSUPP;
+
+	if (sk->sk_state == BT_CLOSED)
+		return 0;
+
+	skb = skb_recv_datagram(sk, flags, noblock, &err);
+	if (!skb)
+		return err;
+
+	msg->msg_namelen = 0;
+
+	copied = skb->len;
+	if (len < copied) {
+		msg->msg_flags |= MSG_TRUNC;
+		copied = len;
+	}
+
+	skb_reset_transport_header(skb);
+	err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+
+	switch (hci_pi(sk)->channel) {
+	case HCI_CHANNEL_RAW:
+		hci_sock_cmsg(sk, msg, skb);
+		break;
+	case HCI_CHANNEL_CONTROL:
+	case HCI_CHANNEL_MONITOR:
+		sock_recv_timestamp(msg, sk, skb);
+		break;
+	}
+
+	skb_free_datagram(sk, skb);
+
+	return err ? : copied;
+}
+
+static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
+			    struct msghdr *msg, size_t len)
+{
+	struct sock *sk = sock->sk;
+	struct hci_dev *hdev;
+	struct sk_buff *skb;
+	int err;
+
+	BT_DBG("sock %p sk %p", sock, sk);
+
+	if (msg->msg_flags & MSG_OOB)
+		return -EOPNOTSUPP;
+
+	if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE))
+		return -EINVAL;
+
+	if (len < 4 || len > HCI_MAX_FRAME_SIZE)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	switch (hci_pi(sk)->channel) {
+	case HCI_CHANNEL_RAW:
+		break;
+	case HCI_CHANNEL_CONTROL:
+		err = mgmt_control(sk, msg, len);
+		goto done;
+	case HCI_CHANNEL_MONITOR:
+		err = -EOPNOTSUPP;
+		goto done;
+	default:
+		err = -EINVAL;
+		goto done;
+	}
+
+	hdev = hci_pi(sk)->hdev;
+	if (!hdev) {
+		err = -EBADFD;
+		goto done;
+	}
+
+	if (!test_bit(HCI_UP, &hdev->flags)) {
+		err = -ENETDOWN;
+		goto done;
+	}
+
+	skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err);
+	if (!skb)
+		goto done;
+
+	if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
+		err = -EFAULT;
+		goto drop;
+	}
+
+	bt_cb(skb)->pkt_type = *((unsigned char *) skb->data);
+	skb_pull(skb, 1);
+	skb->dev = (void *) hdev;
+
+	if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) {
+		u16 opcode = get_unaligned_le16(skb->data);
+		u16 ogf = hci_opcode_ogf(opcode);
+		u16 ocf = hci_opcode_ocf(opcode);
+
+		if (((ogf > HCI_SFLT_MAX_OGF) ||
+				!hci_test_bit(ocf & HCI_FLT_OCF_BITS, &hci_sec_filter.ocf_mask[ogf])) &&
+					!capable(CAP_NET_RAW)) {
+			err = -EPERM;
+			goto drop;
+		}
+
+		if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) {
+			skb_queue_tail(&hdev->raw_q, skb);
+			queue_work(hdev->workqueue, &hdev->tx_work);
+		} else {
+			skb_queue_tail(&hdev->cmd_q, skb);
+			queue_work(hdev->workqueue, &hdev->cmd_work);
+		}
+	} else {
+		if (!capable(CAP_NET_RAW)) {
+			err = -EPERM;
+			goto drop;
+		}
+
+		skb_queue_tail(&hdev->raw_q, skb);
+		queue_work(hdev->workqueue, &hdev->tx_work);
+	}
+
+	err = len;
+
+done:
+	release_sock(sk);
+	return err;
+
+drop:
+	kfree_skb(skb);
+	goto done;
+}
+
+static int hci_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int len)
+{
+	struct hci_ufilter uf = { .opcode = 0 };
+	struct sock *sk = sock->sk;
+	int err = 0, opt = 0;
+
+	BT_DBG("sk %p, opt %d", sk, optname);
+
+	lock_sock(sk);
+
+	if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	switch (optname) {
+	case HCI_DATA_DIR:
+		if (get_user(opt, (int __user *)optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (opt)
+			hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR;
+		else
+			hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_DIR;
+		break;
+
+	case HCI_TIME_STAMP:
+		if (get_user(opt, (int __user *)optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (opt)
+			hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP;
+		else
+			hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_TSTAMP;
+		break;
+
+	case HCI_FILTER:
+		{
+			struct hci_filter *f = &hci_pi(sk)->filter;
+
+			uf.type_mask = f->type_mask;
+			uf.opcode    = f->opcode;
+			uf.event_mask[0] = *((u32 *) f->event_mask + 0);
+			uf.event_mask[1] = *((u32 *) f->event_mask + 1);
+		}
+
+		len = min_t(unsigned int, len, sizeof(uf));
+		if (copy_from_user(&uf, optval, len)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (!capable(CAP_NET_RAW)) {
+			uf.type_mask &= hci_sec_filter.type_mask;
+			uf.event_mask[0] &= *((u32 *) hci_sec_filter.event_mask + 0);
+			uf.event_mask[1] &= *((u32 *) hci_sec_filter.event_mask + 1);
+		}
+
+		{
+			struct hci_filter *f = &hci_pi(sk)->filter;
+
+			f->type_mask = uf.type_mask;
+			f->opcode    = uf.opcode;
+			*((u32 *) f->event_mask + 0) = uf.event_mask[0];
+			*((u32 *) f->event_mask + 1) = uf.event_mask[1];
+		}
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int hci_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+{
+	struct hci_ufilter uf;
+	struct sock *sk = sock->sk;
+	int len, opt, err = 0;
+
+	BT_DBG("sk %p, opt %d", sk, optname);
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	lock_sock(sk);
+
+	if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	switch (optname) {
+	case HCI_DATA_DIR:
+		if (hci_pi(sk)->cmsg_mask & HCI_CMSG_DIR)
+			opt = 1;
+		else
+			opt = 0;
+
+		if (put_user(opt, optval))
+			err = -EFAULT;
+		break;
+
+	case HCI_TIME_STAMP:
+		if (hci_pi(sk)->cmsg_mask & HCI_CMSG_TSTAMP)
+			opt = 1;
+		else
+			opt = 0;
+
+		if (put_user(opt, optval))
+			err = -EFAULT;
+		break;
+
+	case HCI_FILTER:
+		{
+			struct hci_filter *f = &hci_pi(sk)->filter;
+
+			uf.type_mask = f->type_mask;
+			uf.opcode    = f->opcode;
+			uf.event_mask[0] = *((u32 *) f->event_mask + 0);
+			uf.event_mask[1] = *((u32 *) f->event_mask + 1);
+		}
+
+		len = min_t(unsigned int, len, sizeof(uf));
+		if (copy_to_user(optval, &uf, len))
+			err = -EFAULT;
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static const struct proto_ops hci_sock_ops = {
+	.family		= PF_BLUETOOTH,
+	.owner		= THIS_MODULE,
+	.release	= hci_sock_release,
+	.bind		= hci_sock_bind,
+	.getname	= hci_sock_getname,
+	.sendmsg	= hci_sock_sendmsg,
+	.recvmsg	= hci_sock_recvmsg,
+	.ioctl		= hci_sock_ioctl,
+	.poll		= datagram_poll,
+	.listen		= sock_no_listen,
+	.shutdown	= sock_no_shutdown,
+	.setsockopt	= hci_sock_setsockopt,
+	.getsockopt	= hci_sock_getsockopt,
+	.connect	= sock_no_connect,
+	.socketpair	= sock_no_socketpair,
+	.accept		= sock_no_accept,
+	.mmap		= sock_no_mmap
+};
+
+static struct proto hci_sk_proto = {
+	.name		= "HCI",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct hci_pinfo)
+};
+
+static int hci_sock_create(struct net *net, struct socket *sock, int protocol,
+			   int kern)
+{
+	struct sock *sk;
+
+	BT_DBG("sock %p", sock);
+
+	if (sock->type != SOCK_RAW)
+		return -ESOCKTNOSUPPORT;
+
+	sock->ops = &hci_sock_ops;
+
+	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto);
+	if (!sk)
+		return -ENOMEM;
+
+	sock_init_data(sock, sk);
+
+	sock_reset_flag(sk, SOCK_ZAPPED);
+
+	sk->sk_protocol = protocol;
+
+	sock->state = SS_UNCONNECTED;
+	sk->sk_state = BT_OPEN;
+
+	bt_sock_link(&hci_sk_list, sk);
+	return 0;
+}
+
+static int hci_sock_dev_event(struct notifier_block *this,
+				unsigned long event, void *ptr)
+{
+	struct hci_dev *hdev = (struct hci_dev *) ptr;
+	struct hci_ev_si_device ev;
+
+	BT_DBG("hdev %s event %ld", hdev->name, event);
+
+	/* Send event to sockets */
+	ev.event  = event;
+	ev.dev_id = hdev->id;
+	hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev);
+
+	if (event == HCI_DEV_UNREG) {
+		struct sock *sk;
+		struct hlist_node *node;
+
+		/* Detach sockets from device */
+		read_lock(&hci_sk_list.lock);
+		sk_for_each(sk, node, &hci_sk_list.head) {
+			bh_lock_sock_nested(sk);
+			if (hci_pi(sk)->hdev == hdev) {
+				hci_pi(sk)->hdev = NULL;
+				sk->sk_err = EPIPE;
+				sk->sk_state = BT_OPEN;
+				sk->sk_state_change(sk);
+
+				hci_dev_put(hdev);
+			}
+			bh_unlock_sock(sk);
+		}
+		read_unlock(&hci_sk_list.lock);
+	}
+
+	return NOTIFY_DONE;
+}
+
+static const struct net_proto_family hci_sock_family_ops = {
+	.family	= PF_BLUETOOTH,
+	.owner	= THIS_MODULE,
+	.create	= hci_sock_create,
+};
+
+static struct notifier_block hci_sock_nblock = {
+	.notifier_call = hci_sock_dev_event
+};
+
+int __init hci_sock_init(void)
+{
+	int err;
+
+	err = proto_register(&hci_sk_proto, 0);
+	if (err < 0)
+		return err;
+
+	err = bt_sock_register(BTPROTO_HCI, &hci_sock_family_ops);
+	if (err < 0)
+		goto error;
+
+	hci_register_notifier(&hci_sock_nblock);
+
+	BT_INFO("HCI socket layer initialized");
+
+	return 0;
+
+error:
+	BT_ERR("HCI socket registration failed");
+	proto_unregister(&hci_sk_proto);
+	return err;
+}
+
+void hci_sock_cleanup(void)
+{
+	if (bt_sock_unregister(BTPROTO_HCI) < 0)
+		BT_ERR("HCI socket unregistration failed");
+
+	hci_unregister_notifier(&hci_sock_nblock);
+
+	proto_unregister(&hci_sk_proto);
+}
diff --git a/net/bluetooth_tizen/hci_sysfs.c b/net/bluetooth_tizen/hci_sysfs.c
new file mode 100644
index 0000000..bc15429
--- /dev/null
+++ b/net/bluetooth_tizen/hci_sysfs.c
@@ -0,0 +1,588 @@
+/* Bluetooth HCI driver model support. */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/module.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+static struct class *bt_class;
+
+struct dentry *bt_debugfs;
+EXPORT_SYMBOL_GPL(bt_debugfs);
+
+static inline char *link_typetostr(int type)
+{
+	switch (type) {
+	case ACL_LINK:
+		return "ACL";
+	case SCO_LINK:
+		return "SCO";
+	case ESCO_LINK:
+		return "eSCO";
+	case LE_LINK:
+		return "LE";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+static ssize_t show_link_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_conn *conn = to_hci_conn(dev);
+	return sprintf(buf, "%s\n", link_typetostr(conn->type));
+}
+
+static ssize_t show_link_address(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_conn *conn = to_hci_conn(dev);
+	return sprintf(buf, "%s\n", batostr(&conn->dst));
+}
+
+static ssize_t show_link_features(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_conn *conn = to_hci_conn(dev);
+
+	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+				conn->features[0], conn->features[1],
+				conn->features[2], conn->features[3],
+				conn->features[4], conn->features[5],
+				conn->features[6], conn->features[7]);
+}
+
+#define LINK_ATTR(_name, _mode, _show, _store) \
+struct device_attribute link_attr_##_name = __ATTR(_name, _mode, _show, _store)
+
+static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
+static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
+static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
+
+static struct attribute *bt_link_attrs[] = {
+	&link_attr_type.attr,
+	&link_attr_address.attr,
+	&link_attr_features.attr,
+	NULL
+};
+
+static struct attribute_group bt_link_group = {
+	.attrs = bt_link_attrs,
+};
+
+static const struct attribute_group *bt_link_groups[] = {
+	&bt_link_group,
+	NULL
+};
+
+static void bt_link_release(struct device *dev)
+{
+	struct hci_conn *conn = to_hci_conn(dev);
+	kfree(conn);
+}
+
+static struct device_type bt_link = {
+	.name    = "link",
+	.groups  = bt_link_groups,
+	.release = bt_link_release,
+};
+
+/*
+ * The rfcomm tty device will possibly retain even when conn
+ * is down, and sysfs doesn't support move zombie device,
+ * so we should move the device before conn device is destroyed.
+ */
+static int __match_tty(struct device *dev, void *data)
+{
+	return !strncmp(dev_name(dev), "rfcomm", 6);
+}
+
+void hci_conn_init_sysfs(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("conn %p", conn);
+
+	conn->dev.type = &bt_link;
+	conn->dev.class = bt_class;
+	conn->dev.parent = &hdev->dev;
+
+	device_initialize(&conn->dev);
+}
+
+void hci_conn_add_sysfs(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("conn %p", conn);
+
+	dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
+
+	if (device_add(&conn->dev) < 0) {
+		BT_ERR("Failed to register connection device");
+		return;
+	}
+
+	hci_dev_hold(hdev);
+}
+
+void hci_conn_del_sysfs(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	if (!device_is_registered(&conn->dev))
+		return;
+
+	while (1) {
+		struct device *dev;
+
+		dev = device_find_child(&conn->dev, NULL, __match_tty);
+		if (!dev)
+			break;
+		device_move(dev, NULL, DPM_ORDER_DEV_LAST);
+		put_device(dev);
+	}
+
+	device_del(&conn->dev);
+	put_device(&conn->dev);
+
+	hci_dev_put(hdev);
+}
+
+static inline char *host_bustostr(int bus)
+{
+	switch (bus) {
+	case HCI_VIRTUAL:
+		return "VIRTUAL";
+	case HCI_USB:
+		return "USB";
+	case HCI_PCCARD:
+		return "PCCARD";
+	case HCI_UART:
+		return "UART";
+	case HCI_RS232:
+		return "RS232";
+	case HCI_PCI:
+		return "PCI";
+	case HCI_SDIO:
+		return "SDIO";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+static inline char *host_typetostr(int type)
+{
+	switch (type) {
+	case HCI_BREDR:
+		return "BR/EDR";
+	case HCI_AMP:
+		return "AMP";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+static ssize_t show_bus(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
+}
+
+static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
+}
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	char name[HCI_MAX_NAME_LENGTH + 1];
+	int i;
+
+	for (i = 0; i < HCI_MAX_NAME_LENGTH; i++)
+		name[i] = hdev->dev_name[i];
+
+	name[HCI_MAX_NAME_LENGTH] = '\0';
+	return sprintf(buf, "%s\n", name);
+}
+
+static ssize_t show_class(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "0x%.2x%.2x%.2x\n",
+			hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
+}
+
+static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "%s\n", batostr(&hdev->bdaddr));
+}
+
+static ssize_t show_features(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+
+	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+				hdev->features[0], hdev->features[1],
+				hdev->features[2], hdev->features[3],
+				hdev->features[4], hdev->features[5],
+				hdev->features[6], hdev->features[7]);
+}
+
+static ssize_t show_manufacturer(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "%d\n", hdev->manufacturer);
+}
+
+static ssize_t show_hci_version(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "%d\n", hdev->hci_ver);
+}
+
+static ssize_t show_hci_revision(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "%d\n", hdev->hci_rev);
+}
+
+static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "%d\n", hdev->idle_timeout);
+}
+
+static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	unsigned int val;
+	int rv;
+
+	rv = kstrtouint(buf, 0, &val);
+	if (rv < 0)
+		return rv;
+
+	if (val != 0 && (val < 500 || val > 3600000))
+		return -EINVAL;
+
+	hdev->idle_timeout = val;
+
+	return count;
+}
+
+static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
+}
+
+static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	u16 val;
+	int rv;
+
+	rv = kstrtou16(buf, 0, &val);
+	if (rv < 0)
+		return rv;
+
+	if (val == 0 || val % 2 || val < hdev->sniff_min_interval)
+		return -EINVAL;
+
+	hdev->sniff_max_interval = val;
+
+	return count;
+}
+
+static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
+}
+
+static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	u16 val;
+	int rv;
+
+	rv = kstrtou16(buf, 0, &val);
+	if (rv < 0)
+		return rv;
+
+	if (val == 0 || val % 2 || val > hdev->sniff_max_interval)
+		return -EINVAL;
+
+	hdev->sniff_min_interval = val;
+
+	return count;
+}
+
+static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
+static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
+static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
+static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
+static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
+static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
+static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
+
+static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
+				show_idle_timeout, store_idle_timeout);
+static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
+				show_sniff_max_interval, store_sniff_max_interval);
+static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
+				show_sniff_min_interval, store_sniff_min_interval);
+
+static struct attribute *bt_host_attrs[] = {
+	&dev_attr_bus.attr,
+	&dev_attr_type.attr,
+	&dev_attr_name.attr,
+	&dev_attr_class.attr,
+	&dev_attr_address.attr,
+	&dev_attr_features.attr,
+	&dev_attr_manufacturer.attr,
+	&dev_attr_hci_version.attr,
+	&dev_attr_hci_revision.attr,
+	&dev_attr_idle_timeout.attr,
+	&dev_attr_sniff_max_interval.attr,
+	&dev_attr_sniff_min_interval.attr,
+	NULL
+};
+
+static struct attribute_group bt_host_group = {
+	.attrs = bt_host_attrs,
+};
+
+static const struct attribute_group *bt_host_groups[] = {
+	&bt_host_group,
+	NULL
+};
+
+static void bt_host_release(struct device *dev)
+{
+	struct hci_dev *hdev = to_hci_dev(dev);
+	kfree(hdev);
+	module_put(THIS_MODULE);
+}
+
+static struct device_type bt_host = {
+	.name    = "host",
+	.groups  = bt_host_groups,
+	.release = bt_host_release,
+};
+
+static int inquiry_cache_show(struct seq_file *f, void *p)
+{
+	struct hci_dev *hdev = f->private;
+	struct discovery_state *cache = &hdev->discovery;
+	struct inquiry_entry *e;
+
+	hci_dev_lock(hdev);
+
+	list_for_each_entry(e, &cache->all, all) {
+		struct inquiry_data *data = &e->data;
+		seq_printf(f, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
+			   batostr(&data->bdaddr),
+			   data->pscan_rep_mode, data->pscan_period_mode,
+			   data->pscan_mode, data->dev_class[2],
+			   data->dev_class[1], data->dev_class[0],
+			   __le16_to_cpu(data->clock_offset),
+			   data->rssi, data->ssp_mode, e->timestamp);
+	}
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int inquiry_cache_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, inquiry_cache_show, inode->i_private);
+}
+
+static const struct file_operations inquiry_cache_fops = {
+	.open		= inquiry_cache_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int blacklist_show(struct seq_file *f, void *p)
+{
+	struct hci_dev *hdev = f->private;
+	struct bdaddr_list *b;
+
+	hci_dev_lock(hdev);
+
+	list_for_each_entry(b, &hdev->blacklist, list)
+		seq_printf(f, "%s\n", batostr(&b->bdaddr));
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int blacklist_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, blacklist_show, inode->i_private);
+}
+
+static const struct file_operations blacklist_fops = {
+	.open		= blacklist_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static void print_bt_uuid(struct seq_file *f, u8 *uuid)
+{
+	u32 data0, data4;
+	u16 data1, data2, data3, data5;
+
+	memcpy(&data0, &uuid[0], 4);
+	memcpy(&data1, &uuid[4], 2);
+	memcpy(&data2, &uuid[6], 2);
+	memcpy(&data3, &uuid[8], 2);
+	memcpy(&data4, &uuid[10], 4);
+	memcpy(&data5, &uuid[14], 2);
+
+	seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x\n",
+				ntohl(data0), ntohs(data1), ntohs(data2),
+				ntohs(data3), ntohl(data4), ntohs(data5));
+}
+
+static int uuids_show(struct seq_file *f, void *p)
+{
+	struct hci_dev *hdev = f->private;
+	struct bt_uuid *uuid;
+
+	hci_dev_lock(hdev);
+
+	list_for_each_entry(uuid, &hdev->uuids, list)
+		print_bt_uuid(f, uuid->uuid);
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int uuids_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, uuids_show, inode->i_private);
+}
+
+static const struct file_operations uuids_fops = {
+	.open		= uuids_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int auto_accept_delay_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+
+	hdev->auto_accept_delay = val;
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int auto_accept_delay_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+
+	*val = hdev->auto_accept_delay;
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
+					auto_accept_delay_set, "%llu\n");
+
+void hci_init_sysfs(struct hci_dev *hdev)
+{
+	struct device *dev = &hdev->dev;
+
+	dev->type = &bt_host;
+	dev->class = bt_class;
+
+	__module_get(THIS_MODULE);
+	device_initialize(dev);
+}
+
+int hci_add_sysfs(struct hci_dev *hdev)
+{
+	struct device *dev = &hdev->dev;
+	int err;
+
+	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
+
+	dev->parent = hdev->parent;
+	dev_set_name(dev, "%s", hdev->name);
+
+	err = device_add(dev);
+	if (err < 0)
+		return err;
+
+	if (!bt_debugfs)
+		return 0;
+
+	hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
+	if (!hdev->debugfs)
+		return 0;
+
+	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
+						hdev, &inquiry_cache_fops);
+
+	debugfs_create_file("blacklist", 0444, hdev->debugfs,
+						hdev, &blacklist_fops);
+
+	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
+
+	debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev,
+						&auto_accept_delay_fops);
+	return 0;
+}
+
+void hci_del_sysfs(struct hci_dev *hdev)
+{
+	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
+
+	debugfs_remove_recursive(hdev->debugfs);
+
+	device_del(&hdev->dev);
+}
+
+int __init bt_sysfs_init(void)
+{
+	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
+
+	bt_class = class_create(THIS_MODULE, "bluetooth");
+	if (IS_ERR(bt_class))
+		return PTR_ERR(bt_class);
+
+	return 0;
+}
+
+void bt_sysfs_cleanup(void)
+{
+	class_destroy(bt_class);
+
+	debugfs_remove_recursive(bt_debugfs);
+}
diff --git a/net/bluetooth_tizen/hidp/Kconfig b/net/bluetooth_tizen/hidp/Kconfig
new file mode 100644
index 0000000..4deaca7
--- /dev/null
+++ b/net/bluetooth_tizen/hidp/Kconfig
@@ -0,0 +1,12 @@
+config BT_HIDP
+	tristate "HIDP protocol support"
+	depends on BT && INPUT && HID_SUPPORT
+	select HID
+	help
+	  HIDP (Human Interface Device Protocol) is a transport layer
+	  for HID reports.  HIDP is required for the Bluetooth Human
+	  Interface Device Profile.
+
+	  Say Y here to compile HIDP support into the kernel or say M to
+	  compile it as module (hidp).
+
diff --git a/net/bluetooth_tizen/hidp/Makefile b/net/bluetooth_tizen/hidp/Makefile
new file mode 100644
index 0000000..a9ee115
--- /dev/null
+++ b/net/bluetooth_tizen/hidp/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the Linux Bluetooth HIDP layer
+#
+
+obj-$(CONFIG_BT_HIDP) += hidp.o
+
+hidp-objs := core.o sock.o
diff --git a/net/bluetooth_tizen/hidp/core.c b/net/bluetooth_tizen/hidp/core.c
new file mode 100644
index 0000000..d478be1
--- /dev/null
+++ b/net/bluetooth_tizen/hidp/core.c
@@ -0,0 +1,1242 @@
+/*
+   HIDP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/freezer.h>
+#include <linux/fcntl.h>
+#include <linux/skbuff.h>
+#include <linux/socket.h>
+#include <linux/ioctl.h>
+#include <linux/file.h>
+#include <linux/init.h>
+#include <linux/wait.h>
+#include <linux/mutex.h>
+#include <linux/kthread.h>
+#include <net/sock.h>
+
+#include <linux/input.h>
+#include <linux/hid.h>
+#include <linux/hidraw.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+
+#include "hidp.h"
+
+#define VERSION "1.2"
+
+static DECLARE_RWSEM(hidp_session_sem);
+static LIST_HEAD(hidp_session_list);
+
+static unsigned char hidp_keycode[256] = {
+	  0,   0,   0,   0,  30,  48,  46,  32,  18,  33,  34,  35,  23,  36,
+	 37,  38,  50,  49,  24,  25,  16,  19,  31,  20,  22,  47,  17,  45,
+	 21,  44,   2,   3,   4,   5,   6,   7,   8,   9,  10,  11,  28,   1,
+	 14,  15,  57,  12,  13,  26,  27,  43,  43,  39,  40,  41,  51,  52,
+	 53,  58,  59,  60,  61,  62,  63,  64,  65,  66,  67,  68,  87,  88,
+	 99,  70, 119, 110, 102, 104, 111, 107, 109, 106, 105, 108, 103,  69,
+	 98,  55,  74,  78,  96,  79,  80,  81,  75,  76,  77,  71,  72,  73,
+	 82,  83,  86, 127, 116, 117, 183, 184, 185, 186, 187, 188, 189, 190,
+	191, 192, 193, 194, 134, 138, 130, 132, 128, 129, 131, 137, 133, 135,
+	136, 113, 115, 114,   0,   0,   0, 121,   0,  89,  93, 124,  92,  94,
+	 95,   0,   0,   0, 122, 123,  90,  91,  85,   0,   0,   0,   0,   0,
+	  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+	  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+	  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+	  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+	  0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+	 29,  42,  56, 125,  97,  54, 100, 126, 164, 166, 165, 163, 161, 115,
+	114, 113, 150, 158, 159, 128, 136, 177, 178, 176, 142, 152, 173, 140
+};
+
+static unsigned char hidp_mkeyspat[] = { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 };
+
+static struct hidp_session *__hidp_get_session(bdaddr_t *bdaddr)
+{
+	struct hidp_session *session;
+
+	BT_DBG("");
+
+	list_for_each_entry(session, &hidp_session_list, list) {
+		if (!bacmp(bdaddr, &session->bdaddr))
+			return session;
+	}
+
+	return NULL;
+}
+
+static void __hidp_link_session(struct hidp_session *session)
+{
+	list_add(&session->list, &hidp_session_list);
+}
+
+static void __hidp_unlink_session(struct hidp_session *session)
+{
+	hci_conn_put_device(session->conn);
+
+	list_del(&session->list);
+}
+
+static void __hidp_copy_session(struct hidp_session *session, struct hidp_conninfo *ci)
+{
+	memset(ci, 0, sizeof(*ci));
+	bacpy(&ci->bdaddr, &session->bdaddr);
+
+	ci->flags = session->flags;
+	ci->state = session->state;
+
+	ci->vendor  = 0x0000;
+	ci->product = 0x0000;
+	ci->version = 0x0000;
+
+	if (session->input) {
+		ci->vendor  = session->input->id.vendor;
+		ci->product = session->input->id.product;
+		ci->version = session->input->id.version;
+		if (session->input->name)
+			strncpy(ci->name, session->input->name, 128);
+		else
+			strncpy(ci->name, "HID Boot Device", 128);
+	}
+
+	if (session->hid) {
+		ci->vendor  = session->hid->vendor;
+		ci->product = session->hid->product;
+		ci->version = session->hid->version;
+		strncpy(ci->name, session->hid->name, 128);
+	}
+}
+
+static int hidp_queue_event(struct hidp_session *session, struct input_dev *dev,
+				unsigned int type, unsigned int code, int value)
+{
+	unsigned char newleds;
+	struct sk_buff *skb;
+
+	BT_DBG("session %p type %d code %d value %d", session, type, code, value);
+
+	if (type != EV_LED)
+		return -1;
+
+	newleds = (!!test_bit(LED_KANA,    dev->led) << 3) |
+		  (!!test_bit(LED_COMPOSE, dev->led) << 3) |
+		  (!!test_bit(LED_SCROLLL, dev->led) << 2) |
+		  (!!test_bit(LED_CAPSL,   dev->led) << 1) |
+		  (!!test_bit(LED_NUML,    dev->led));
+
+	if (session->leds == newleds)
+		return 0;
+
+	session->leds = newleds;
+
+	skb = alloc_skb(3, GFP_ATOMIC);
+	if (!skb) {
+		BT_ERR("Can't allocate memory for new frame");
+		return -ENOMEM;
+	}
+
+	*skb_put(skb, 1) = HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT;
+	*skb_put(skb, 1) = 0x01;
+	*skb_put(skb, 1) = newleds;
+
+	skb_queue_tail(&session->intr_transmit, skb);
+
+	hidp_schedule(session);
+
+	return 0;
+}
+
+static int hidp_hidinput_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+	struct hid_device *hid = input_get_drvdata(dev);
+	struct hidp_session *session = hid->driver_data;
+
+	return hidp_queue_event(session, dev, type, code, value);
+}
+
+static int hidp_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+	struct hidp_session *session = input_get_drvdata(dev);
+
+	return hidp_queue_event(session, dev, type, code, value);
+}
+
+static void hidp_input_report(struct hidp_session *session, struct sk_buff *skb)
+{
+	struct input_dev *dev = session->input;
+	unsigned char *keys = session->keys;
+	unsigned char *udata = skb->data + 1;
+	signed char *sdata = skb->data + 1;
+	int i, size = skb->len - 1;
+
+	switch (skb->data[0]) {
+	case 0x01:	/* Keyboard report */
+		for (i = 0; i < 8; i++)
+			input_report_key(dev, hidp_keycode[i + 224], (udata[0] >> i) & 1);
+
+		/* If all the key codes have been set to 0x01, it means
+		 * too many keys were pressed at the same time. */
+		if (!memcmp(udata + 2, hidp_mkeyspat, 6))
+			break;
+
+		for (i = 2; i < 8; i++) {
+			if (keys[i] > 3 && memscan(udata + 2, keys[i], 6) == udata + 8) {
+				if (hidp_keycode[keys[i]])
+					input_report_key(dev, hidp_keycode[keys[i]], 0);
+				else
+					BT_ERR("Unknown key (scancode %#x) released.", keys[i]);
+			}
+
+			if (udata[i] > 3 && memscan(keys + 2, udata[i], 6) == keys + 8) {
+				if (hidp_keycode[udata[i]])
+					input_report_key(dev, hidp_keycode[udata[i]], 1);
+				else
+					BT_ERR("Unknown key (scancode %#x) pressed.", udata[i]);
+			}
+		}
+
+		memcpy(keys, udata, 8);
+		break;
+
+	case 0x02:	/* Mouse report */
+		input_report_key(dev, BTN_LEFT,   sdata[0] & 0x01);
+		input_report_key(dev, BTN_RIGHT,  sdata[0] & 0x02);
+		input_report_key(dev, BTN_MIDDLE, sdata[0] & 0x04);
+		input_report_key(dev, BTN_SIDE,   sdata[0] & 0x08);
+		input_report_key(dev, BTN_EXTRA,  sdata[0] & 0x10);
+
+		input_report_rel(dev, REL_X, sdata[1]);
+		input_report_rel(dev, REL_Y, sdata[2]);
+
+		if (size > 3)
+			input_report_rel(dev, REL_WHEEL, sdata[3]);
+		break;
+	}
+
+	input_sync(dev);
+}
+
+static int __hidp_send_ctrl_message(struct hidp_session *session,
+			unsigned char hdr, unsigned char *data, int size)
+{
+	struct sk_buff *skb;
+
+	BT_DBG("session %p data %p size %d", session, data, size);
+
+	if (atomic_read(&session->terminate))
+		return -EIO;
+
+	skb = alloc_skb(size + 1, GFP_ATOMIC);
+	if (!skb) {
+		BT_ERR("Can't allocate memory for new frame");
+		return -ENOMEM;
+	}
+
+	*skb_put(skb, 1) = hdr;
+	if (data && size > 0)
+		memcpy(skb_put(skb, size), data, size);
+
+	skb_queue_tail(&session->ctrl_transmit, skb);
+
+	return 0;
+}
+
+static inline int hidp_send_ctrl_message(struct hidp_session *session,
+			unsigned char hdr, unsigned char *data, int size)
+{
+	int err;
+
+	err = __hidp_send_ctrl_message(session, hdr, data, size);
+
+	hidp_schedule(session);
+
+	return err;
+}
+
+static int hidp_queue_report(struct hidp_session *session,
+				unsigned char *data, int size)
+{
+	struct sk_buff *skb;
+
+	BT_DBG("session %p hid %p data %p size %d", session, session->hid, data, size);
+
+	skb = alloc_skb(size + 1, GFP_ATOMIC);
+	if (!skb) {
+		BT_ERR("Can't allocate memory for new frame");
+		return -ENOMEM;
+	}
+
+	*skb_put(skb, 1) = 0xa2;
+	if (size > 0)
+		memcpy(skb_put(skb, size), data, size);
+
+	skb_queue_tail(&session->intr_transmit, skb);
+
+	hidp_schedule(session);
+
+	return 0;
+}
+
+static int hidp_send_report(struct hidp_session *session, struct hid_report *report)
+{
+	unsigned char buf[32];
+	int rsize;
+
+	rsize = ((report->size - 1) >> 3) + 1 + (report->id > 0);
+	if (rsize > sizeof(buf))
+		return -EIO;
+
+	hid_output_report(report, buf);
+
+	return hidp_queue_report(session, buf, rsize);
+}
+
+static int hidp_get_raw_report(struct hid_device *hid,
+		unsigned char report_number,
+		unsigned char *data, size_t count,
+		unsigned char report_type)
+{
+	struct hidp_session *session = hid->driver_data;
+	struct sk_buff *skb;
+	size_t len;
+	int numbered_reports = hid->report_enum[report_type].numbered;
+	int ret;
+
+	switch (report_type) {
+	case HID_FEATURE_REPORT:
+		report_type = HIDP_TRANS_GET_REPORT | HIDP_DATA_RTYPE_FEATURE;
+		break;
+	case HID_INPUT_REPORT:
+		report_type = HIDP_TRANS_GET_REPORT | HIDP_DATA_RTYPE_INPUT;
+		break;
+	case HID_OUTPUT_REPORT:
+		report_type = HIDP_TRANS_GET_REPORT | HIDP_DATA_RTYPE_OUPUT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (mutex_lock_interruptible(&session->report_mutex))
+		return -ERESTARTSYS;
+
+	/* Set up our wait, and send the report request to the device. */
+	session->waiting_report_type = report_type & HIDP_DATA_RTYPE_MASK;
+	session->waiting_report_number = numbered_reports ? report_number : -1;
+	set_bit(HIDP_WAITING_FOR_RETURN, &session->flags);
+	data[0] = report_number;
+	ret = hidp_send_ctrl_message(hid->driver_data, report_type, data, 1);
+	if (ret)
+		goto err;
+
+	/* Wait for the return of the report. The returned report
+	   gets put in session->report_return.  */
+	while (test_bit(HIDP_WAITING_FOR_RETURN, &session->flags)) {
+		int res;
+
+		res = wait_event_interruptible_timeout(session->report_queue,
+			!test_bit(HIDP_WAITING_FOR_RETURN, &session->flags),
+			5*HZ);
+		if (res == 0) {
+			/* timeout */
+			ret = -EIO;
+			goto err;
+		}
+		if (res < 0) {
+			/* signal */
+			ret = -ERESTARTSYS;
+			goto err;
+		}
+	}
+
+	skb = session->report_return;
+	if (skb) {
+		len = skb->len < count ? skb->len : count;
+		memcpy(data, skb->data, len);
+
+		kfree_skb(skb);
+		session->report_return = NULL;
+	} else {
+		/* Device returned a HANDSHAKE, indicating  protocol error. */
+		len = -EIO;
+	}
+
+	clear_bit(HIDP_WAITING_FOR_RETURN, &session->flags);
+	mutex_unlock(&session->report_mutex);
+
+	return len;
+
+err:
+	clear_bit(HIDP_WAITING_FOR_RETURN, &session->flags);
+	mutex_unlock(&session->report_mutex);
+	return ret;
+}
+
+static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, size_t count,
+		unsigned char report_type)
+{
+	struct hidp_session *session = hid->driver_data;
+	int ret;
+
+	switch (report_type) {
+	case HID_FEATURE_REPORT:
+		report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_FEATURE;
+		break;
+	case HID_OUTPUT_REPORT:
+		report_type = HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_OUPUT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (mutex_lock_interruptible(&session->report_mutex))
+		return -ERESTARTSYS;
+
+	/* Set up our wait, and send the report request to the device. */
+	set_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags);
+	ret = hidp_send_ctrl_message(hid->driver_data, report_type, data,
+									count);
+	if (ret)
+		goto err;
+
+	/* Wait for the ACK from the device. */
+	while (test_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags)) {
+		int res;
+
+		res = wait_event_interruptible_timeout(session->report_queue,
+			!test_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags),
+			10*HZ);
+		if (res == 0) {
+			/* timeout */
+			ret = -EIO;
+			goto err;
+		}
+		if (res < 0) {
+			/* signal */
+			ret = -ERESTARTSYS;
+			goto err;
+		}
+	}
+
+	if (!session->output_report_success) {
+		ret = -EIO;
+		goto err;
+	}
+
+	ret = count;
+
+err:
+	clear_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags);
+	mutex_unlock(&session->report_mutex);
+	return ret;
+}
+
+static void hidp_idle_timeout(unsigned long arg)
+{
+	struct hidp_session *session = (struct hidp_session *) arg;
+
+	atomic_inc(&session->terminate);
+	wake_up_process(session->task);
+}
+
+static void hidp_set_timer(struct hidp_session *session)
+{
+	if (session->idle_to > 0)
+		mod_timer(&session->timer, jiffies + HZ * session->idle_to);
+}
+
+static inline void hidp_del_timer(struct hidp_session *session)
+{
+	if (session->idle_to > 0)
+		del_timer(&session->timer);
+}
+
+static void hidp_process_handshake(struct hidp_session *session,
+					unsigned char param)
+{
+	BT_DBG("session %p param 0x%02x", session, param);
+	session->output_report_success = 0; /* default condition */
+
+	switch (param) {
+	case HIDP_HSHK_SUCCESSFUL:
+		/* FIXME: Call into SET_ GET_ handlers here */
+		session->output_report_success = 1;
+		break;
+
+	case HIDP_HSHK_NOT_READY:
+	case HIDP_HSHK_ERR_INVALID_REPORT_ID:
+	case HIDP_HSHK_ERR_UNSUPPORTED_REQUEST:
+	case HIDP_HSHK_ERR_INVALID_PARAMETER:
+		if (test_and_clear_bit(HIDP_WAITING_FOR_RETURN, &session->flags))
+			wake_up_interruptible(&session->report_queue);
+
+		/* FIXME: Call into SET_ GET_ handlers here */
+		break;
+
+	case HIDP_HSHK_ERR_UNKNOWN:
+		break;
+
+	case HIDP_HSHK_ERR_FATAL:
+		/* Device requests a reboot, as this is the only way this error
+		 * can be recovered. */
+		__hidp_send_ctrl_message(session,
+			HIDP_TRANS_HID_CONTROL | HIDP_CTRL_SOFT_RESET, NULL, 0);
+		break;
+
+	default:
+		__hidp_send_ctrl_message(session,
+			HIDP_TRANS_HANDSHAKE | HIDP_HSHK_ERR_INVALID_PARAMETER, NULL, 0);
+		break;
+	}
+
+	/* Wake up the waiting thread. */
+	if (test_and_clear_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags))
+		wake_up_interruptible(&session->report_queue);
+}
+
+static void hidp_process_hid_control(struct hidp_session *session,
+					unsigned char param)
+{
+	BT_DBG("session %p param 0x%02x", session, param);
+
+	if (param == HIDP_CTRL_VIRTUAL_CABLE_UNPLUG) {
+		/* Flush the transmit queues */
+		skb_queue_purge(&session->ctrl_transmit);
+		skb_queue_purge(&session->intr_transmit);
+
+		atomic_inc(&session->terminate);
+		wake_up_process(current);
+	}
+}
+
+/* Returns true if the passed-in skb should be freed by the caller. */
+static int hidp_process_data(struct hidp_session *session, struct sk_buff *skb,
+				unsigned char param)
+{
+	int done_with_skb = 1;
+	BT_DBG("session %p skb %p len %d param 0x%02x", session, skb, skb->len, param);
+
+	switch (param) {
+	case HIDP_DATA_RTYPE_INPUT:
+		hidp_set_timer(session);
+
+		if (session->input)
+			hidp_input_report(session, skb);
+
+		if (session->hid)
+			hid_input_report(session->hid, HID_INPUT_REPORT, skb->data, skb->len, 0);
+		break;
+
+	case HIDP_DATA_RTYPE_OTHER:
+	case HIDP_DATA_RTYPE_OUPUT:
+	case HIDP_DATA_RTYPE_FEATURE:
+		break;
+
+	default:
+		__hidp_send_ctrl_message(session,
+			HIDP_TRANS_HANDSHAKE | HIDP_HSHK_ERR_INVALID_PARAMETER, NULL, 0);
+	}
+
+	if (test_bit(HIDP_WAITING_FOR_RETURN, &session->flags) &&
+				param == session->waiting_report_type) {
+		if (session->waiting_report_number < 0 ||
+		    session->waiting_report_number == skb->data[0]) {
+			/* hidp_get_raw_report() is waiting on this report. */
+			session->report_return = skb;
+			done_with_skb = 0;
+			clear_bit(HIDP_WAITING_FOR_RETURN, &session->flags);
+			wake_up_interruptible(&session->report_queue);
+		}
+	}
+
+	return done_with_skb;
+}
+
+static void hidp_recv_ctrl_frame(struct hidp_session *session,
+					struct sk_buff *skb)
+{
+	unsigned char hdr, type, param;
+	int free_skb = 1;
+
+	BT_DBG("session %p skb %p len %d", session, skb, skb->len);
+
+	hdr = skb->data[0];
+	skb_pull(skb, 1);
+
+	type = hdr & HIDP_HEADER_TRANS_MASK;
+	param = hdr & HIDP_HEADER_PARAM_MASK;
+
+	switch (type) {
+	case HIDP_TRANS_HANDSHAKE:
+		hidp_process_handshake(session, param);
+		break;
+
+	case HIDP_TRANS_HID_CONTROL:
+		hidp_process_hid_control(session, param);
+		break;
+
+	case HIDP_TRANS_DATA:
+		free_skb = hidp_process_data(session, skb, param);
+		break;
+
+	default:
+		__hidp_send_ctrl_message(session,
+			HIDP_TRANS_HANDSHAKE | HIDP_HSHK_ERR_UNSUPPORTED_REQUEST, NULL, 0);
+		break;
+	}
+
+	if (free_skb)
+		kfree_skb(skb);
+}
+
+static void hidp_recv_intr_frame(struct hidp_session *session,
+				struct sk_buff *skb)
+{
+	unsigned char hdr;
+
+	BT_DBG("session %p skb %p len %d", session, skb, skb->len);
+
+	hdr = skb->data[0];
+	skb_pull(skb, 1);
+
+	if (hdr == (HIDP_TRANS_DATA | HIDP_DATA_RTYPE_INPUT)) {
+		hidp_set_timer(session);
+
+		if (session->input)
+			hidp_input_report(session, skb);
+
+		if (session->hid) {
+			hid_input_report(session->hid, HID_INPUT_REPORT, skb->data, skb->len, 1);
+			BT_DBG("report len %d", skb->len);
+		}
+	} else {
+		BT_DBG("Unsupported protocol header 0x%02x", hdr);
+	}
+
+	kfree_skb(skb);
+}
+
+static int hidp_send_frame(struct socket *sock, unsigned char *data, int len)
+{
+	struct kvec iv = { data, len };
+	struct msghdr msg;
+
+	BT_DBG("sock %p data %p len %d", sock, data, len);
+
+	if (!len)
+		return 0;
+
+	memset(&msg, 0, sizeof(msg));
+
+	return kernel_sendmsg(sock, &msg, &iv, 1, len);
+}
+
+static void hidp_process_intr_transmit(struct hidp_session *session)
+{
+	struct sk_buff *skb;
+
+	BT_DBG("session %p", session);
+
+	while ((skb = skb_dequeue(&session->intr_transmit))) {
+		if (hidp_send_frame(session->intr_sock, skb->data, skb->len) < 0) {
+			skb_queue_head(&session->intr_transmit, skb);
+			break;
+		}
+
+		hidp_set_timer(session);
+		kfree_skb(skb);
+	}
+}
+
+static void hidp_process_ctrl_transmit(struct hidp_session *session)
+{
+	struct sk_buff *skb;
+
+	BT_DBG("session %p", session);
+
+	while ((skb = skb_dequeue(&session->ctrl_transmit))) {
+		if (hidp_send_frame(session->ctrl_sock, skb->data, skb->len) < 0) {
+			skb_queue_head(&session->ctrl_transmit, skb);
+			break;
+		}
+
+		hidp_set_timer(session);
+		kfree_skb(skb);
+	}
+}
+
+static int hidp_session(void *arg)
+{
+	struct hidp_session *session = arg;
+	struct sock *ctrl_sk = session->ctrl_sock->sk;
+	struct sock *intr_sk = session->intr_sock->sk;
+	struct sk_buff *skb;
+	wait_queue_t ctrl_wait, intr_wait;
+
+	BT_DBG("session %p", session);
+
+	__module_get(THIS_MODULE);
+	set_user_nice(current, -15);
+
+	init_waitqueue_entry(&ctrl_wait, current);
+	init_waitqueue_entry(&intr_wait, current);
+	add_wait_queue(sk_sleep(ctrl_sk), &ctrl_wait);
+	add_wait_queue(sk_sleep(intr_sk), &intr_wait);
+	session->waiting_for_startup = 0;
+	wake_up_interruptible(&session->startup_queue);
+	set_current_state(TASK_INTERRUPTIBLE);
+	while (!atomic_read(&session->terminate)) {
+		if (ctrl_sk->sk_state != BT_CONNECTED ||
+				intr_sk->sk_state != BT_CONNECTED)
+			break;
+
+		while ((skb = skb_dequeue(&intr_sk->sk_receive_queue))) {
+			skb_orphan(skb);
+			if (!skb_linearize(skb))
+				hidp_recv_intr_frame(session, skb);
+			else
+				kfree_skb(skb);
+		}
+
+		hidp_process_intr_transmit(session);
+
+		while ((skb = skb_dequeue(&ctrl_sk->sk_receive_queue))) {
+			skb_orphan(skb);
+			if (!skb_linearize(skb))
+				hidp_recv_ctrl_frame(session, skb);
+			else
+				kfree_skb(skb);
+		}
+
+		hidp_process_ctrl_transmit(session);
+
+		schedule();
+		set_current_state(TASK_INTERRUPTIBLE);
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(intr_sk), &intr_wait);
+	remove_wait_queue(sk_sleep(ctrl_sk), &ctrl_wait);
+
+	clear_bit(HIDP_WAITING_FOR_SEND_ACK, &session->flags);
+	clear_bit(HIDP_WAITING_FOR_RETURN, &session->flags);
+	wake_up_interruptible(&session->report_queue);
+
+	down_write(&hidp_session_sem);
+
+	hidp_del_timer(session);
+
+	if (session->input) {
+		input_unregister_device(session->input);
+		session->input = NULL;
+	}
+
+	if (session->hid) {
+		hid_destroy_device(session->hid);
+		session->hid = NULL;
+	}
+
+	/* Wakeup user-space polling for socket errors */
+	session->intr_sock->sk->sk_err = EUNATCH;
+	session->ctrl_sock->sk->sk_err = EUNATCH;
+
+	hidp_schedule(session);
+
+	fput(session->intr_sock->file);
+
+	wait_event_timeout(*(sk_sleep(ctrl_sk)),
+		(ctrl_sk->sk_state == BT_CLOSED), msecs_to_jiffies(500));
+
+	fput(session->ctrl_sock->file);
+
+	__hidp_unlink_session(session);
+
+	up_write(&hidp_session_sem);
+
+	kfree(session->rd_data);
+	kfree(session);
+	module_put_and_exit(0);
+	return 0;
+}
+
+static struct hci_conn *hidp_get_connection(struct hidp_session *session)
+{
+	bdaddr_t *src = &bt_sk(session->ctrl_sock->sk)->src;
+	bdaddr_t *dst = &bt_sk(session->ctrl_sock->sk)->dst;
+	struct hci_conn *conn;
+	struct hci_dev *hdev;
+
+	hdev = hci_get_route(dst, src);
+	if (!hdev)
+		return NULL;
+
+	hci_dev_lock(hdev);
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
+	if (conn)
+		hci_conn_hold_device(conn);
+	hci_dev_unlock(hdev);
+
+	hci_dev_put(hdev);
+
+	return conn;
+}
+
+static int hidp_setup_input(struct hidp_session *session,
+				struct hidp_connadd_req *req)
+{
+	struct input_dev *input;
+	int i;
+
+	input = input_allocate_device();
+	if (!input)
+		return -ENOMEM;
+
+	session->input = input;
+
+	input_set_drvdata(input, session);
+
+	input->name = "Bluetooth HID Boot Protocol Device";
+
+	input->id.bustype = BUS_BLUETOOTH;
+	input->id.vendor  = req->vendor;
+	input->id.product = req->product;
+	input->id.version = req->version;
+
+	if (req->subclass & 0x40) {
+		set_bit(EV_KEY, input->evbit);
+		set_bit(EV_LED, input->evbit);
+		set_bit(EV_REP, input->evbit);
+
+		set_bit(LED_NUML,    input->ledbit);
+		set_bit(LED_CAPSL,   input->ledbit);
+		set_bit(LED_SCROLLL, input->ledbit);
+		set_bit(LED_COMPOSE, input->ledbit);
+		set_bit(LED_KANA,    input->ledbit);
+
+		for (i = 0; i < sizeof(hidp_keycode); i++)
+			set_bit(hidp_keycode[i], input->keybit);
+		clear_bit(0, input->keybit);
+	}
+
+	if (req->subclass & 0x80) {
+		input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+		input->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+			BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
+		input->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+		input->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_SIDE) |
+			BIT_MASK(BTN_EXTRA);
+		input->relbit[0] |= BIT_MASK(REL_WHEEL);
+	}
+
+	input->dev.parent = &session->conn->dev;
+
+	input->event = hidp_input_event;
+
+	return 0;
+}
+
+static int hidp_open(struct hid_device *hid)
+{
+	return 0;
+}
+
+static void hidp_close(struct hid_device *hid)
+{
+}
+
+static int hidp_parse(struct hid_device *hid)
+{
+	struct hidp_session *session = hid->driver_data;
+
+	return hid_parse_report(session->hid, session->rd_data,
+			session->rd_size);
+}
+
+static int hidp_start(struct hid_device *hid)
+{
+	struct hidp_session *session = hid->driver_data;
+	struct hid_report *report;
+
+	if (hid->quirks & HID_QUIRK_NO_INIT_REPORTS)
+		return 0;
+
+	list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].
+			report_list, list)
+		hidp_send_report(session, report);
+
+	list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].
+			report_list, list)
+		hidp_send_report(session, report);
+
+	return 0;
+}
+
+static void hidp_stop(struct hid_device *hid)
+{
+	struct hidp_session *session = hid->driver_data;
+
+	skb_queue_purge(&session->ctrl_transmit);
+	skb_queue_purge(&session->intr_transmit);
+
+	hid->claimed = 0;
+}
+
+static struct hid_ll_driver hidp_hid_driver = {
+	.parse = hidp_parse,
+	.start = hidp_start,
+	.stop = hidp_stop,
+	.open  = hidp_open,
+	.close = hidp_close,
+	.hidinput_input_event = hidp_hidinput_event,
+};
+
+/* This function sets up the hid device. It does not add it
+   to the HID system. That is done in hidp_add_connection(). */
+static int hidp_setup_hid(struct hidp_session *session,
+				struct hidp_connadd_req *req)
+{
+	struct hid_device *hid;
+	int err;
+
+	session->rd_data = kzalloc(req->rd_size, GFP_KERNEL);
+	if (!session->rd_data)
+		return -ENOMEM;
+
+	if (copy_from_user(session->rd_data, req->rd_data, req->rd_size)) {
+		err = -EFAULT;
+		goto fault;
+	}
+	session->rd_size = req->rd_size;
+
+	hid = hid_allocate_device();
+	if (IS_ERR(hid)) {
+		err = PTR_ERR(hid);
+		goto fault;
+	}
+
+	session->hid = hid;
+
+	hid->driver_data = session;
+
+	hid->bus     = BUS_BLUETOOTH;
+	hid->vendor  = req->vendor;
+	hid->product = req->product;
+	hid->version = req->version;
+	hid->country = req->country;
+
+	strncpy(hid->name, req->name, 128);
+	strncpy(hid->phys, batostr(&bt_sk(session->ctrl_sock->sk)->src), 64);
+	strncpy(hid->uniq, batostr(&bt_sk(session->ctrl_sock->sk)->dst), 64);
+
+	hid->dev.parent = &session->conn->dev;
+	hid->ll_driver = &hidp_hid_driver;
+
+	hid->hid_get_raw_report = hidp_get_raw_report;
+	hid->hid_output_raw_report = hidp_output_raw_report;
+
+	return 0;
+
+fault:
+	kfree(session->rd_data);
+	session->rd_data = NULL;
+
+	return err;
+}
+
+int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock)
+{
+	struct hidp_session *session, *s;
+	int vendor, product;
+	int err;
+
+	BT_DBG("");
+
+	if (bacmp(&bt_sk(ctrl_sock->sk)->src, &bt_sk(intr_sock->sk)->src) ||
+			bacmp(&bt_sk(ctrl_sock->sk)->dst, &bt_sk(intr_sock->sk)->dst))
+		return -ENOTUNIQ;
+
+	BT_DBG("rd_data %p rd_size %d", req->rd_data, req->rd_size);
+
+	down_write(&hidp_session_sem);
+
+	s = __hidp_get_session(&bt_sk(ctrl_sock->sk)->dst);
+	if (s && s->state == BT_CONNECTED) {
+		up_write(&hidp_session_sem);
+		return -EEXIST;
+	}
+
+	session = kzalloc(sizeof(struct hidp_session), GFP_KERNEL);
+	if (!session) {
+		up_write(&hidp_session_sem);
+		return -ENOMEM;
+	}
+
+	bacpy(&session->bdaddr, &bt_sk(ctrl_sock->sk)->dst);
+
+	session->ctrl_mtu = min_t(uint, l2cap_pi(ctrl_sock->sk)->chan->omtu,
+					l2cap_pi(ctrl_sock->sk)->chan->imtu);
+	session->intr_mtu = min_t(uint, l2cap_pi(intr_sock->sk)->chan->omtu,
+					l2cap_pi(intr_sock->sk)->chan->imtu);
+
+	BT_DBG("ctrl mtu %d intr mtu %d", session->ctrl_mtu, session->intr_mtu);
+
+	session->ctrl_sock = ctrl_sock;
+	session->intr_sock = intr_sock;
+	session->state     = BT_CONNECTED;
+
+	session->conn = hidp_get_connection(session);
+	if (!session->conn) {
+		err = -ENOTCONN;
+		goto failed;
+	}
+
+	setup_timer(&session->timer, hidp_idle_timeout, (unsigned long)session);
+
+	skb_queue_head_init(&session->ctrl_transmit);
+	skb_queue_head_init(&session->intr_transmit);
+
+	mutex_init(&session->report_mutex);
+	init_waitqueue_head(&session->report_queue);
+	init_waitqueue_head(&session->startup_queue);
+	session->waiting_for_startup = 1;
+	session->flags   = req->flags & (1 << HIDP_BLUETOOTH_VENDOR_ID);
+	session->idle_to = req->idle_to;
+
+	__hidp_link_session(session);
+
+	if (req->rd_size > 0) {
+		err = hidp_setup_hid(session, req);
+		if (err)
+			goto purge;
+	}
+
+	if (!session->hid) {
+		err = hidp_setup_input(session, req);
+		if (err < 0)
+			goto purge;
+	}
+
+	hidp_set_timer(session);
+
+	if (session->hid) {
+		vendor  = session->hid->vendor;
+		product = session->hid->product;
+	} else if (session->input) {
+		vendor  = session->input->id.vendor;
+		product = session->input->id.product;
+	} else {
+		vendor = 0x0000;
+		product = 0x0000;
+	}
+
+	session->task = kthread_run(hidp_session, session, "khidpd_%04x%04x",
+							vendor, product);
+	if (IS_ERR(session->task)) {
+		err = PTR_ERR(session->task);
+		goto unlink;
+	}
+
+	while (session->waiting_for_startup) {
+		wait_event_interruptible(session->startup_queue,
+			!session->waiting_for_startup);
+	}
+
+	if (session->hid)
+		err = hid_add_device(session->hid);
+	else
+		err = input_register_device(session->input);
+
+	if (err < 0) {
+		atomic_inc(&session->terminate);
+		wake_up_process(session->task);
+		up_write(&hidp_session_sem);
+		return err;
+	}
+
+	if (session->input) {
+		hidp_send_ctrl_message(session,
+			HIDP_TRANS_SET_PROTOCOL | HIDP_PROTO_BOOT, NULL, 0);
+		session->flags |= (1 << HIDP_BOOT_PROTOCOL_MODE);
+
+		session->leds = 0xff;
+		hidp_input_event(session->input, EV_LED, 0, 0);
+	}
+
+	up_write(&hidp_session_sem);
+	return 0;
+
+unlink:
+	hidp_del_timer(session);
+
+	if (session->input) {
+		input_unregister_device(session->input);
+		session->input = NULL;
+	}
+
+	if (session->hid) {
+		hid_destroy_device(session->hid);
+		session->hid = NULL;
+	}
+
+	kfree(session->rd_data);
+	session->rd_data = NULL;
+
+purge:
+	__hidp_unlink_session(session);
+
+	skb_queue_purge(&session->ctrl_transmit);
+	skb_queue_purge(&session->intr_transmit);
+
+failed:
+	up_write(&hidp_session_sem);
+
+	kfree(session);
+	return err;
+}
+
+int hidp_del_connection(struct hidp_conndel_req *req)
+{
+	struct hidp_session *session;
+	int err = 0;
+
+	BT_DBG("");
+
+	down_read(&hidp_session_sem);
+
+	session = __hidp_get_session(&req->bdaddr);
+	if (session) {
+		if (req->flags & (1 << HIDP_VIRTUAL_CABLE_UNPLUG)) {
+			hidp_send_ctrl_message(session,
+				HIDP_TRANS_HID_CONTROL | HIDP_CTRL_VIRTUAL_CABLE_UNPLUG, NULL, 0);
+		} else {
+			/* Flush the transmit queues */
+			skb_queue_purge(&session->ctrl_transmit);
+			skb_queue_purge(&session->intr_transmit);
+
+			atomic_inc(&session->terminate);
+			wake_up_process(session->task);
+		}
+	} else
+		err = -ENOENT;
+
+	up_read(&hidp_session_sem);
+	return err;
+}
+
+int hidp_get_connlist(struct hidp_connlist_req *req)
+{
+	struct hidp_session *session;
+	int err = 0, n = 0;
+
+	BT_DBG("");
+
+	down_read(&hidp_session_sem);
+
+	list_for_each_entry(session, &hidp_session_list, list) {
+		struct hidp_conninfo ci;
+
+		__hidp_copy_session(session, &ci);
+
+		if (copy_to_user(req->ci, &ci, sizeof(ci))) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (++n >= req->cnum)
+			break;
+
+		req->ci++;
+	}
+	req->cnum = n;
+
+	up_read(&hidp_session_sem);
+	return err;
+}
+
+int hidp_get_conninfo(struct hidp_conninfo *ci)
+{
+	struct hidp_session *session;
+	int err = 0;
+
+	down_read(&hidp_session_sem);
+
+	session = __hidp_get_session(&ci->bdaddr);
+	if (session)
+		__hidp_copy_session(session, ci);
+	else
+		err = -ENOENT;
+
+	up_read(&hidp_session_sem);
+	return err;
+}
+
+static const struct hid_device_id hidp_table[] = {
+	{ HID_BLUETOOTH_DEVICE(HID_ANY_ID, HID_ANY_ID) },
+	{ }
+};
+
+static struct hid_driver hidp_driver = {
+	.name = "generic-bluetooth",
+	.id_table = hidp_table,
+};
+
+static int __init hidp_init(void)
+{
+	int ret;
+
+	BT_INFO("HIDP (Human Interface Emulation) ver %s", VERSION);
+
+	ret = hid_register_driver(&hidp_driver);
+	if (ret)
+		goto err;
+
+	ret = hidp_init_sockets();
+	if (ret)
+		goto err_drv;
+
+	return 0;
+err_drv:
+	hid_unregister_driver(&hidp_driver);
+err:
+	return ret;
+}
+
+static void __exit hidp_exit(void)
+{
+	hidp_cleanup_sockets();
+	hid_unregister_driver(&hidp_driver);
+}
+
+module_init(hidp_init);
+module_exit(hidp_exit);
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth HIDP ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("bt-proto-6");
diff --git a/net/bluetooth_tizen/hidp/hidp.h b/net/bluetooth_tizen/hidp/hidp.h
new file mode 100644
index 0000000..af1bcc8
--- /dev/null
+++ b/net/bluetooth_tizen/hidp/hidp.h
@@ -0,0 +1,191 @@
+/*
+   HIDP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#ifndef __HIDP_H
+#define __HIDP_H
+
+#include <linux/types.h>
+#include <net/bluetooth/bluetooth.h>
+
+/* HIDP header masks */
+#define HIDP_HEADER_TRANS_MASK			0xf0
+#define HIDP_HEADER_PARAM_MASK			0x0f
+
+/* HIDP transaction types */
+#define HIDP_TRANS_HANDSHAKE			0x00
+#define HIDP_TRANS_HID_CONTROL			0x10
+#define HIDP_TRANS_GET_REPORT			0x40
+#define HIDP_TRANS_SET_REPORT			0x50
+#define HIDP_TRANS_GET_PROTOCOL			0x60
+#define HIDP_TRANS_SET_PROTOCOL			0x70
+#define HIDP_TRANS_GET_IDLE			0x80
+#define HIDP_TRANS_SET_IDLE			0x90
+#define HIDP_TRANS_DATA				0xa0
+#define HIDP_TRANS_DATC				0xb0
+
+/* HIDP handshake results */
+#define HIDP_HSHK_SUCCESSFUL			0x00
+#define HIDP_HSHK_NOT_READY			0x01
+#define HIDP_HSHK_ERR_INVALID_REPORT_ID		0x02
+#define HIDP_HSHK_ERR_UNSUPPORTED_REQUEST	0x03
+#define HIDP_HSHK_ERR_INVALID_PARAMETER		0x04
+#define HIDP_HSHK_ERR_UNKNOWN			0x0e
+#define HIDP_HSHK_ERR_FATAL			0x0f
+
+/* HIDP control operation parameters */
+#define HIDP_CTRL_NOP				0x00
+#define HIDP_CTRL_HARD_RESET			0x01
+#define HIDP_CTRL_SOFT_RESET			0x02
+#define HIDP_CTRL_SUSPEND			0x03
+#define HIDP_CTRL_EXIT_SUSPEND			0x04
+#define HIDP_CTRL_VIRTUAL_CABLE_UNPLUG		0x05
+
+/* HIDP data transaction headers */
+#define HIDP_DATA_RTYPE_MASK			0x03
+#define HIDP_DATA_RSRVD_MASK			0x0c
+#define HIDP_DATA_RTYPE_OTHER			0x00
+#define HIDP_DATA_RTYPE_INPUT			0x01
+#define HIDP_DATA_RTYPE_OUPUT			0x02
+#define HIDP_DATA_RTYPE_FEATURE			0x03
+
+/* HIDP protocol header parameters */
+#define HIDP_PROTO_BOOT				0x00
+#define HIDP_PROTO_REPORT			0x01
+
+/* HIDP ioctl defines */
+#define HIDPCONNADD	_IOW('H', 200, int)
+#define HIDPCONNDEL	_IOW('H', 201, int)
+#define HIDPGETCONNLIST	_IOR('H', 210, int)
+#define HIDPGETCONNINFO	_IOR('H', 211, int)
+
+#define HIDP_VIRTUAL_CABLE_UNPLUG	0
+#define HIDP_BOOT_PROTOCOL_MODE		1
+#define HIDP_BLUETOOTH_VENDOR_ID	9
+#define HIDP_WAITING_FOR_RETURN		10
+#define HIDP_WAITING_FOR_SEND_ACK	11
+
+struct hidp_connadd_req {
+	int   ctrl_sock;	/* Connected control socket */
+	int   intr_sock;	/* Connected interrupt socket */
+	__u16 parser;
+	__u16 rd_size;
+	__u8 __user *rd_data;
+	__u8  country;
+	__u8  subclass;
+	__u16 vendor;
+	__u16 product;
+	__u16 version;
+	__u32 flags;
+	__u32 idle_to;
+	char  name[128];
+};
+
+struct hidp_conndel_req {
+	bdaddr_t bdaddr;
+	__u32    flags;
+};
+
+struct hidp_conninfo {
+	bdaddr_t bdaddr;
+	__u32    flags;
+	__u16    state;
+	__u16    vendor;
+	__u16    product;
+	__u16    version;
+	char     name[128];
+};
+
+struct hidp_connlist_req {
+	__u32  cnum;
+	struct hidp_conninfo __user *ci;
+};
+
+int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock);
+int hidp_del_connection(struct hidp_conndel_req *req);
+int hidp_get_connlist(struct hidp_connlist_req *req);
+int hidp_get_conninfo(struct hidp_conninfo *ci);
+
+/* HIDP session defines */
+struct hidp_session {
+	struct list_head list;
+
+	struct hci_conn *conn;
+
+	struct socket *ctrl_sock;
+	struct socket *intr_sock;
+
+	bdaddr_t bdaddr;
+
+	unsigned long state;
+	unsigned long flags;
+	unsigned long idle_to;
+
+	uint ctrl_mtu;
+	uint intr_mtu;
+
+	atomic_t terminate;
+	struct task_struct *task;
+
+	unsigned char keys[8];
+	unsigned char leds;
+
+	struct input_dev *input;
+
+	struct hid_device *hid;
+
+	struct timer_list timer;
+
+	struct sk_buff_head ctrl_transmit;
+	struct sk_buff_head intr_transmit;
+
+	/* Used in hidp_get_raw_report() */
+	int waiting_report_type; /* HIDP_DATA_RTYPE_* */
+	int waiting_report_number; /* -1 for not numbered */
+	struct mutex report_mutex;
+	struct sk_buff *report_return;
+	wait_queue_head_t report_queue;
+
+	/* Used in hidp_output_raw_report() */
+	int output_report_success; /* boolean */
+
+	/* Report descriptor */
+	__u8 *rd_data;
+	uint rd_size;
+
+	wait_queue_head_t startup_queue;
+	int waiting_for_startup;
+};
+
+static inline void hidp_schedule(struct hidp_session *session)
+{
+	struct sock *ctrl_sk = session->ctrl_sock->sk;
+	struct sock *intr_sk = session->intr_sock->sk;
+
+	wake_up_interruptible(sk_sleep(ctrl_sk));
+	wake_up_interruptible(sk_sleep(intr_sk));
+}
+
+/* HIDP init defines */
+extern int __init hidp_init_sockets(void);
+extern void __exit hidp_cleanup_sockets(void);
+
+#endif /* __HIDP_H */
diff --git a/net/bluetooth_tizen/hidp/sock.c b/net/bluetooth_tizen/hidp/sock.c
new file mode 100644
index 0000000..73a32d7
--- /dev/null
+++ b/net/bluetooth_tizen/hidp/sock.c
@@ -0,0 +1,305 @@
+/*
+   HIDP implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/skbuff.h>
+#include <linux/socket.h>
+#include <linux/ioctl.h>
+#include <linux/file.h>
+#include <linux/init.h>
+#include <linux/compat.h>
+#include <linux/gfp.h>
+#include <net/sock.h>
+
+#include "hidp.h"
+
+static int hidp_sock_release(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+
+	BT_DBG("sock %p sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	sock_orphan(sk);
+	sock_put(sk);
+
+	return 0;
+}
+
+static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *) arg;
+	struct hidp_connadd_req ca;
+	struct hidp_conndel_req cd;
+	struct hidp_connlist_req cl;
+	struct hidp_conninfo ci;
+	struct socket *csock;
+	struct socket *isock;
+	int err;
+
+	BT_DBG("cmd %x arg %lx", cmd, arg);
+
+	switch (cmd) {
+	case HIDPCONNADD:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+
+		if (copy_from_user(&ca, argp, sizeof(ca)))
+			return -EFAULT;
+
+		csock = sockfd_lookup(ca.ctrl_sock, &err);
+		if (!csock)
+			return err;
+
+		isock = sockfd_lookup(ca.intr_sock, &err);
+		if (!isock) {
+			sockfd_put(csock);
+			return err;
+		}
+
+		if (csock->sk->sk_state != BT_CONNECTED ||
+				isock->sk->sk_state != BT_CONNECTED) {
+			sockfd_put(csock);
+			sockfd_put(isock);
+			return -EBADFD;
+		}
+
+		err = hidp_add_connection(&ca, csock, isock);
+		if (!err) {
+			if (copy_to_user(argp, &ca, sizeof(ca)))
+				err = -EFAULT;
+		} else {
+			sockfd_put(csock);
+			sockfd_put(isock);
+		}
+
+		return err;
+
+	case HIDPCONNDEL:
+		if (!capable(CAP_NET_ADMIN))
+			return -EACCES;
+
+		if (copy_from_user(&cd, argp, sizeof(cd)))
+			return -EFAULT;
+
+		return hidp_del_connection(&cd);
+
+	case HIDPGETCONNLIST:
+		if (copy_from_user(&cl, argp, sizeof(cl)))
+			return -EFAULT;
+
+		if (cl.cnum <= 0)
+			return -EINVAL;
+
+		err = hidp_get_connlist(&cl);
+		if (!err && copy_to_user(argp, &cl, sizeof(cl)))
+			return -EFAULT;
+
+		return err;
+
+	case HIDPGETCONNINFO:
+		if (copy_from_user(&ci, argp, sizeof(ci)))
+			return -EFAULT;
+
+		err = hidp_get_conninfo(&ci);
+		if (!err && copy_to_user(argp, &ci, sizeof(ci)))
+			return -EFAULT;
+
+		return err;
+	}
+
+	return -EINVAL;
+}
+
+#ifdef CONFIG_COMPAT
+struct compat_hidp_connadd_req {
+	int   ctrl_sock;	/* Connected control socket */
+	int   intr_sock;	/* Connected interrupt socket */
+	__u16 parser;
+	__u16 rd_size;
+	compat_uptr_t rd_data;
+	__u8  country;
+	__u8  subclass;
+	__u16 vendor;
+	__u16 product;
+	__u16 version;
+	__u32 flags;
+	__u32 idle_to;
+	char  name[128];
+};
+
+static int hidp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+	if (cmd == HIDPGETCONNLIST) {
+		struct hidp_connlist_req cl;
+		u32 uci;
+		int err;
+
+		if (get_user(cl.cnum, (u32 __user *) arg) ||
+				get_user(uci, (u32 __user *) (arg + 4)))
+			return -EFAULT;
+
+		cl.ci = compat_ptr(uci);
+
+		if (cl.cnum <= 0)
+			return -EINVAL;
+
+		err = hidp_get_connlist(&cl);
+
+		if (!err && put_user(cl.cnum, (u32 __user *) arg))
+			err = -EFAULT;
+
+		return err;
+	} else if (cmd == HIDPCONNADD) {
+		struct compat_hidp_connadd_req ca;
+		struct hidp_connadd_req __user *uca;
+
+		uca = compat_alloc_user_space(sizeof(*uca));
+
+		if (copy_from_user(&ca, (void __user *) arg, sizeof(ca)))
+			return -EFAULT;
+
+		if (put_user(ca.ctrl_sock, &uca->ctrl_sock) ||
+				put_user(ca.intr_sock, &uca->intr_sock) ||
+				put_user(ca.parser, &uca->parser) ||
+				put_user(ca.rd_size, &uca->rd_size) ||
+				put_user(compat_ptr(ca.rd_data), &uca->rd_data) ||
+				put_user(ca.country, &uca->country) ||
+				put_user(ca.subclass, &uca->subclass) ||
+				put_user(ca.vendor, &uca->vendor) ||
+				put_user(ca.product, &uca->product) ||
+				put_user(ca.version, &uca->version) ||
+				put_user(ca.flags, &uca->flags) ||
+				put_user(ca.idle_to, &uca->idle_to) ||
+				copy_to_user(&uca->name[0], &ca.name[0], 128))
+			return -EFAULT;
+
+		arg = (unsigned long) uca;
+
+		/* Fall through. We don't actually write back any _changes_
+		   to the structure anyway, so there's no need to copy back
+		   into the original compat version */
+	}
+
+	return hidp_sock_ioctl(sock, cmd, arg);
+}
+#endif
+
+static const struct proto_ops hidp_sock_ops = {
+	.family		= PF_BLUETOOTH,
+	.owner		= THIS_MODULE,
+	.release	= hidp_sock_release,
+	.ioctl		= hidp_sock_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= hidp_sock_compat_ioctl,
+#endif
+	.bind		= sock_no_bind,
+	.getname	= sock_no_getname,
+	.sendmsg	= sock_no_sendmsg,
+	.recvmsg	= sock_no_recvmsg,
+	.poll		= sock_no_poll,
+	.listen		= sock_no_listen,
+	.shutdown	= sock_no_shutdown,
+	.setsockopt	= sock_no_setsockopt,
+	.getsockopt	= sock_no_getsockopt,
+	.connect	= sock_no_connect,
+	.socketpair	= sock_no_socketpair,
+	.accept		= sock_no_accept,
+	.mmap		= sock_no_mmap
+};
+
+static struct proto hidp_proto = {
+	.name		= "HIDP",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct bt_sock)
+};
+
+static int hidp_sock_create(struct net *net, struct socket *sock, int protocol,
+			    int kern)
+{
+	struct sock *sk;
+
+	BT_DBG("sock %p", sock);
+
+	if (sock->type != SOCK_RAW)
+		return -ESOCKTNOSUPPORT;
+
+	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto);
+	if (!sk)
+		return -ENOMEM;
+
+	sock_init_data(sock, sk);
+
+	sock->ops = &hidp_sock_ops;
+
+	sock->state = SS_UNCONNECTED;
+
+	sock_reset_flag(sk, SOCK_ZAPPED);
+
+	sk->sk_protocol = protocol;
+	sk->sk_state	= BT_OPEN;
+
+	return 0;
+}
+
+static const struct net_proto_family hidp_sock_family_ops = {
+	.family	= PF_BLUETOOTH,
+	.owner	= THIS_MODULE,
+	.create	= hidp_sock_create
+};
+
+int __init hidp_init_sockets(void)
+{
+	int err;
+
+	err = proto_register(&hidp_proto, 0);
+	if (err < 0)
+		return err;
+
+	err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);
+	if (err < 0)
+		goto error;
+
+	return 0;
+
+error:
+	BT_ERR("Can't register HIDP socket");
+	proto_unregister(&hidp_proto);
+	return err;
+}
+
+void __exit hidp_cleanup_sockets(void)
+{
+	if (bt_sock_unregister(BTPROTO_HIDP) < 0)
+		BT_ERR("Can't unregister HIDP socket");
+
+	proto_unregister(&hidp_proto);
+}
diff --git a/net/bluetooth_tizen/l2cap_core.c b/net/bluetooth_tizen/l2cap_core.c
new file mode 100644
index 0000000..48268ab
--- /dev/null
+++ b/net/bluetooth_tizen/l2cap_core.c
@@ -0,0 +1,4803 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+   Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org>
+   Copyright (C) 2010 Google Inc.
+   Copyright (C) 2011 ProFUSION Embedded Systems
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth L2CAP core. */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/socket.h>
+#include <linux/skbuff.h>
+#include <linux/list.h>
+#include <linux/device.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/uaccess.h>
+#include <linux/crc16.h>
+#include <net/sock.h>
+
+#include <asm/system.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+#include <net/bluetooth/smp.h>
+
+bool disable_ertm;
+
+static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
+static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP, };
+
+static LIST_HEAD(chan_list);
+static DEFINE_RWLOCK(chan_list_lock);
+
+static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
+				u8 code, u8 ident, u16 dlen, void *data);
+static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len,
+								void *data);
+static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data);
+static void l2cap_send_disconn_req(struct l2cap_conn *conn,
+				struct l2cap_chan *chan, int err);
+
+/* ---- L2CAP channels ---- */
+
+static struct l2cap_chan *__l2cap_get_chan_by_dcid(struct l2cap_conn *conn, u16 cid)
+{
+	struct l2cap_chan *c;
+
+	list_for_each_entry(c, &conn->chan_l, list) {
+		if (c->dcid == cid)
+			return c;
+	}
+	return NULL;
+}
+
+static struct l2cap_chan *__l2cap_get_chan_by_scid(struct l2cap_conn *conn, u16 cid)
+{
+	struct l2cap_chan *c;
+
+	list_for_each_entry(c, &conn->chan_l, list) {
+		if (c->scid == cid)
+			return c;
+	}
+	return NULL;
+}
+
+/* Find channel with given SCID.
+ * Returns locked channel. */
+static struct l2cap_chan *l2cap_get_chan_by_scid(struct l2cap_conn *conn, u16 cid)
+{
+	struct l2cap_chan *c;
+
+	mutex_lock(&conn->chan_lock);
+	c = __l2cap_get_chan_by_scid(conn, cid);
+	if (c)
+		l2cap_chan_lock(c);
+	mutex_unlock(&conn->chan_lock);
+
+	return c;
+}
+
+static struct l2cap_chan *__l2cap_get_chan_by_ident(struct l2cap_conn *conn, u8 ident)
+{
+	struct l2cap_chan *c;
+
+	list_for_each_entry(c, &conn->chan_l, list) {
+		if (c->ident == ident)
+			return c;
+	}
+	return NULL;
+}
+
+static inline struct l2cap_chan *l2cap_get_chan_by_ident(struct l2cap_conn *conn, u8 ident)
+{
+	struct l2cap_chan *c;
+
+	mutex_lock(&conn->chan_lock);
+	c = __l2cap_get_chan_by_ident(conn, ident);
+	mutex_unlock(&conn->chan_lock);
+
+	return c;
+}
+
+static struct l2cap_chan *__l2cap_global_chan_by_addr(__le16 psm, bdaddr_t *src)
+{
+	struct l2cap_chan *c;
+
+	list_for_each_entry(c, &chan_list, global_l) {
+		if (c->sport == psm && !bacmp(&bt_sk(c->sk)->src, src))
+			return c;
+	}
+	return NULL;
+}
+
+int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm)
+{
+	int err;
+
+	write_lock(&chan_list_lock);
+
+	if (psm && __l2cap_global_chan_by_addr(psm, src)) {
+		err = -EADDRINUSE;
+		goto done;
+	}
+
+	if (psm) {
+		chan->psm = psm;
+		chan->sport = psm;
+		err = 0;
+	} else {
+		u16 p;
+
+		err = -EINVAL;
+		for (p = 0x1001; p < 0x1100; p += 2)
+			if (!__l2cap_global_chan_by_addr(cpu_to_le16(p), src)) {
+				chan->psm   = cpu_to_le16(p);
+				chan->sport = cpu_to_le16(p);
+				err = 0;
+				break;
+			}
+	}
+
+done:
+	write_unlock(&chan_list_lock);
+	return err;
+}
+
+int l2cap_add_scid(struct l2cap_chan *chan,  __u16 scid)
+{
+	write_lock(&chan_list_lock);
+
+	chan->scid = scid;
+
+	write_unlock(&chan_list_lock);
+
+	return 0;
+}
+
+static u16 l2cap_alloc_cid(struct l2cap_conn *conn)
+{
+	u16 cid = L2CAP_CID_DYN_START;
+
+	for (; cid < L2CAP_CID_DYN_END; cid++) {
+		if (!__l2cap_get_chan_by_scid(conn, cid))
+			return cid;
+	}
+
+	return 0;
+}
+
+static void __l2cap_state_change(struct l2cap_chan *chan, int state)
+{
+	BT_DBG("chan %p %s -> %s", chan, state_to_string(chan->state),
+						state_to_string(state));
+
+	chan->state = state;
+	chan->ops->state_change(chan->data, state);
+}
+
+static void l2cap_state_change(struct l2cap_chan *chan, int state)
+{
+	struct sock *sk = chan->sk;
+
+	lock_sock(sk);
+	__l2cap_state_change(chan, state);
+	release_sock(sk);
+}
+
+static inline void __l2cap_chan_set_err(struct l2cap_chan *chan, int err)
+{
+	struct sock *sk = chan->sk;
+
+	sk->sk_err = err;
+}
+
+static inline void l2cap_chan_set_err(struct l2cap_chan *chan, int err)
+{
+	struct sock *sk = chan->sk;
+
+	lock_sock(sk);
+	__l2cap_chan_set_err(chan, err);
+	release_sock(sk);
+}
+
+static void l2cap_chan_timeout(struct work_struct *work)
+{
+	struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
+							chan_timer.work);
+	struct l2cap_conn *conn = chan->conn;
+	int reason;
+
+	BT_DBG("chan %p state %s", chan, state_to_string(chan->state));
+
+	mutex_lock(&conn->chan_lock);
+	l2cap_chan_lock(chan);
+
+	if (chan->state == BT_CONNECTED || chan->state == BT_CONFIG)
+		reason = ECONNREFUSED;
+	else if (chan->state == BT_CONNECT &&
+					chan->sec_level != BT_SECURITY_SDP)
+		reason = ECONNREFUSED;
+	else
+		reason = ETIMEDOUT;
+
+	l2cap_chan_close(chan, reason);
+
+	l2cap_chan_unlock(chan);
+
+	chan->ops->close(chan->data);
+	mutex_unlock(&conn->chan_lock);
+
+	l2cap_chan_put(chan);
+}
+
+struct l2cap_chan *l2cap_chan_create(struct sock *sk)
+{
+	struct l2cap_chan *chan;
+
+	chan = kzalloc(sizeof(*chan), GFP_ATOMIC);
+	if (!chan)
+		return NULL;
+
+	mutex_init(&chan->lock);
+
+	chan->sk = sk;
+
+	write_lock(&chan_list_lock);
+	list_add(&chan->global_l, &chan_list);
+	write_unlock(&chan_list_lock);
+
+	INIT_DELAYED_WORK(&chan->chan_timer, l2cap_chan_timeout);
+
+	chan->state = BT_OPEN;
+
+	atomic_set(&chan->refcnt, 1);
+
+	BT_DBG("sk %p chan %p", sk, chan);
+
+	return chan;
+}
+
+void l2cap_chan_destroy(struct l2cap_chan *chan)
+{
+	write_lock(&chan_list_lock);
+	list_del(&chan->global_l);
+	write_unlock(&chan_list_lock);
+
+	l2cap_chan_put(chan);
+}
+
+void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
+{
+	BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn,
+			chan->psm, chan->dcid);
+
+	conn->disc_reason = HCI_ERROR_REMOTE_USER_TERM;
+
+	chan->conn = conn;
+
+	switch (chan->chan_type) {
+	case L2CAP_CHAN_CONN_ORIENTED:
+		if (conn->hcon->type == LE_LINK) {
+			/* LE connection */
+			chan->omtu = L2CAP_LE_DEFAULT_MTU;
+			chan->scid = L2CAP_CID_LE_DATA;
+			chan->dcid = L2CAP_CID_LE_DATA;
+		} else {
+			/* Alloc CID for connection-oriented socket */
+			chan->scid = l2cap_alloc_cid(conn);
+			chan->omtu = L2CAP_DEFAULT_MTU;
+		}
+		break;
+
+	case L2CAP_CHAN_CONN_LESS:
+		/* Connectionless socket */
+		chan->scid = L2CAP_CID_CONN_LESS;
+		chan->dcid = L2CAP_CID_CONN_LESS;
+		chan->omtu = L2CAP_DEFAULT_MTU;
+		break;
+
+	default:
+		/* Raw socket can send/recv signalling messages only */
+		chan->scid = L2CAP_CID_SIGNALING;
+		chan->dcid = L2CAP_CID_SIGNALING;
+		chan->omtu = L2CAP_DEFAULT_MTU;
+	}
+
+	chan->local_id		= L2CAP_BESTEFFORT_ID;
+	chan->local_stype	= L2CAP_SERV_BESTEFFORT;
+	chan->local_msdu	= L2CAP_DEFAULT_MAX_SDU_SIZE;
+	chan->local_sdu_itime	= L2CAP_DEFAULT_SDU_ITIME;
+	chan->local_acc_lat	= L2CAP_DEFAULT_ACC_LAT;
+	chan->local_flush_to	= L2CAP_DEFAULT_FLUSH_TO;
+
+	l2cap_chan_hold(chan);
+
+	list_add(&chan->list, &conn->chan_l);
+}
+
+void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
+{
+	mutex_lock(&conn->chan_lock);
+	__l2cap_chan_add(conn, chan);
+	mutex_unlock(&conn->chan_lock);
+}
+
+static void l2cap_chan_del(struct l2cap_chan *chan, int err)
+{
+	struct sock *sk = chan->sk;
+	struct l2cap_conn *conn = chan->conn;
+	struct sock *parent = bt_sk(sk)->parent;
+
+	__clear_chan_timer(chan);
+
+	BT_DBG("chan %p, conn %p, err %d", chan, conn, err);
+
+	if (conn) {
+		/* Delete from channel list */
+		list_del(&chan->list);
+
+		l2cap_chan_put(chan);
+
+		chan->conn = NULL;
+		hci_conn_put(conn->hcon);
+	}
+
+	lock_sock(sk);
+
+	__l2cap_state_change(chan, BT_CLOSED);
+	sock_set_flag(sk, SOCK_ZAPPED);
+
+	if (err)
+		__l2cap_chan_set_err(chan, err);
+
+	if (parent) {
+		bt_accept_unlink(sk);
+		parent->sk_data_ready(parent, 0);
+	} else
+		sk->sk_state_change(sk);
+
+	release_sock(sk);
+
+	if (!(test_bit(CONF_OUTPUT_DONE, &chan->conf_state) &&
+			test_bit(CONF_INPUT_DONE, &chan->conf_state)))
+		return;
+
+	skb_queue_purge(&chan->tx_q);
+
+	if (chan->mode == L2CAP_MODE_ERTM) {
+		struct srej_list *l, *tmp;
+
+		__clear_retrans_timer(chan);
+		__clear_monitor_timer(chan);
+		__clear_ack_timer(chan);
+
+		skb_queue_purge(&chan->srej_q);
+
+		list_for_each_entry_safe(l, tmp, &chan->srej_l, list) {
+			list_del(&l->list);
+			kfree(l);
+		}
+	}
+}
+
+static void l2cap_chan_cleanup_listen(struct sock *parent)
+{
+	struct sock *sk;
+
+	BT_DBG("parent %p", parent);
+
+	/* Close not yet accepted channels */
+	while ((sk = bt_accept_dequeue(parent, NULL))) {
+		struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+
+		l2cap_chan_lock(chan);
+		__clear_chan_timer(chan);
+		l2cap_chan_close(chan, ECONNRESET);
+		l2cap_chan_unlock(chan);
+
+		chan->ops->close(chan->data);
+	}
+}
+
+void l2cap_chan_close(struct l2cap_chan *chan, int reason)
+{
+	struct l2cap_conn *conn = chan->conn;
+	struct sock *sk = chan->sk;
+
+	BT_DBG("chan %p state %s sk %p", chan,
+					state_to_string(chan->state), sk);
+
+	switch (chan->state) {
+	case BT_LISTEN:
+		lock_sock(sk);
+		l2cap_chan_cleanup_listen(sk);
+
+		__l2cap_state_change(chan, BT_CLOSED);
+		sock_set_flag(sk, SOCK_ZAPPED);
+		release_sock(sk);
+		break;
+
+	case BT_CONNECTED:
+	case BT_CONFIG:
+		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
+					conn->hcon->type == ACL_LINK) {
+			__clear_chan_timer(chan);
+			__set_chan_timer(chan, sk->sk_sndtimeo);
+			l2cap_send_disconn_req(conn, chan, reason);
+		} else
+			l2cap_chan_del(chan, reason);
+		break;
+
+	case BT_CONNECT2:
+		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
+					conn->hcon->type == ACL_LINK) {
+			struct l2cap_conn_rsp rsp;
+			__u16 result;
+
+			if (bt_sk(sk)->defer_setup)
+				result = L2CAP_CR_SEC_BLOCK;
+			else
+				result = L2CAP_CR_BAD_PSM;
+			l2cap_state_change(chan, BT_DISCONN);
+
+			rsp.scid   = cpu_to_le16(chan->dcid);
+			rsp.dcid   = cpu_to_le16(chan->scid);
+			rsp.result = cpu_to_le16(result);
+			rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
+			l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
+							sizeof(rsp), &rsp);
+		}
+
+		l2cap_chan_del(chan, reason);
+		break;
+
+	case BT_CONNECT:
+	case BT_DISCONN:
+		l2cap_chan_del(chan, reason);
+		break;
+
+	default:
+		lock_sock(sk);
+		sock_set_flag(sk, SOCK_ZAPPED);
+		release_sock(sk);
+		break;
+	}
+}
+
+static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
+{
+	if (chan->chan_type == L2CAP_CHAN_RAW) {
+		switch (chan->sec_level) {
+		case BT_SECURITY_HIGH:
+			return HCI_AT_DEDICATED_BONDING_MITM;
+		case BT_SECURITY_MEDIUM:
+			return HCI_AT_DEDICATED_BONDING;
+		default:
+			return HCI_AT_NO_BONDING;
+		}
+	} else if (chan->psm == cpu_to_le16(0x0001)) {
+		if (chan->sec_level == BT_SECURITY_LOW)
+			chan->sec_level = BT_SECURITY_SDP;
+
+		if (chan->sec_level == BT_SECURITY_HIGH)
+			return HCI_AT_NO_BONDING_MITM;
+		else
+			return HCI_AT_NO_BONDING;
+	} else {
+		switch (chan->sec_level) {
+		case BT_SECURITY_HIGH:
+			return HCI_AT_GENERAL_BONDING_MITM;
+		case BT_SECURITY_MEDIUM:
+			return HCI_AT_GENERAL_BONDING;
+		default:
+			return HCI_AT_NO_BONDING;
+		}
+	}
+}
+
+/* Service level security */
+int l2cap_chan_check_security(struct l2cap_chan *chan)
+{
+	struct l2cap_conn *conn = chan->conn;
+	__u8 auth_type;
+
+	auth_type = l2cap_get_auth_type(chan);
+
+	return hci_conn_security(conn->hcon, chan->sec_level, auth_type);
+}
+
+static u8 l2cap_get_ident(struct l2cap_conn *conn)
+{
+	u8 id;
+
+	/* Get next available identificator.
+	 *    1 - 128 are used by kernel.
+	 *  129 - 199 are reserved.
+	 *  200 - 254 are used by utilities like l2ping, etc.
+	 */
+
+	spin_lock(&conn->lock);
+
+	if (++conn->tx_ident > 128)
+		conn->tx_ident = 1;
+
+	id = conn->tx_ident;
+
+	spin_unlock(&conn->lock);
+
+	return id;
+}
+
+static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *data)
+{
+	struct sk_buff *skb = l2cap_build_cmd(conn, code, ident, len, data);
+	u8 flags;
+
+	BT_DBG("code 0x%2.2x", code);
+
+	if (!skb)
+		return;
+
+	if (lmp_no_flush_capable(conn->hcon->hdev))
+		flags = ACL_START_NO_FLUSH;
+	else
+		flags = ACL_START;
+
+	bt_cb(skb)->force_active = BT_POWER_FORCE_ACTIVE_ON;
+	skb->priority = HCI_PRIO_MAX;
+
+	hci_send_acl(conn->hchan, skb, flags);
+}
+
+static void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb)
+{
+	struct hci_conn *hcon = chan->conn->hcon;
+	u16 flags;
+
+	BT_DBG("chan %p, skb %p len %d priority %u", chan, skb, skb->len,
+							skb->priority);
+
+	if (!test_bit(FLAG_FLUSHABLE, &chan->flags) &&
+					lmp_no_flush_capable(hcon->hdev))
+		flags = ACL_START_NO_FLUSH;
+	else
+		flags = ACL_START;
+
+	bt_cb(skb)->force_active = test_bit(FLAG_FORCE_ACTIVE, &chan->flags);
+	hci_send_acl(chan->conn->hchan, skb, flags);
+}
+
+static inline void l2cap_send_sframe(struct l2cap_chan *chan, u32 control)
+{
+	struct sk_buff *skb;
+	struct l2cap_hdr *lh;
+	struct l2cap_conn *conn = chan->conn;
+	int count, hlen;
+
+	if (chan->state != BT_CONNECTED)
+		return;
+
+	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
+		hlen = L2CAP_EXT_HDR_SIZE;
+	else
+		hlen = L2CAP_ENH_HDR_SIZE;
+
+	if (chan->fcs == L2CAP_FCS_CRC16)
+		hlen += L2CAP_FCS_SIZE;
+
+	BT_DBG("chan %p, control 0x%8.8x", chan, control);
+
+	count = min_t(unsigned int, conn->mtu, hlen);
+
+	control |= __set_sframe(chan);
+
+	if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
+		control |= __set_ctrl_final(chan);
+
+	if (test_and_clear_bit(CONN_SEND_PBIT, &chan->conn_state))
+		control |= __set_ctrl_poll(chan);
+
+	skb = bt_skb_alloc(count, GFP_ATOMIC);
+	if (!skb)
+		return;
+
+	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+	lh->len = cpu_to_le16(hlen - L2CAP_HDR_SIZE);
+	lh->cid = cpu_to_le16(chan->dcid);
+
+	__put_control(chan, control, skb_put(skb, __ctrl_size(chan)));
+
+	if (chan->fcs == L2CAP_FCS_CRC16) {
+		u16 fcs = crc16(0, (u8 *)lh, count - L2CAP_FCS_SIZE);
+		put_unaligned_le16(fcs, skb_put(skb, L2CAP_FCS_SIZE));
+	}
+
+	skb->priority = HCI_PRIO_MAX;
+	l2cap_do_send(chan, skb);
+}
+
+static inline void l2cap_send_rr_or_rnr(struct l2cap_chan *chan, u32 control)
+{
+	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+		control |= __set_ctrl_super(chan, L2CAP_SUPER_RNR);
+		set_bit(CONN_RNR_SENT, &chan->conn_state);
+	} else
+		control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
+
+	control |= __set_reqseq(chan, chan->buffer_seq);
+
+	l2cap_send_sframe(chan, control);
+}
+
+static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan)
+{
+	return !test_bit(CONF_CONNECT_PEND, &chan->conf_state);
+}
+
+static void l2cap_send_conn_req(struct l2cap_chan *chan)
+{
+	struct l2cap_conn *conn = chan->conn;
+	struct l2cap_conn_req req;
+
+	req.scid = cpu_to_le16(chan->scid);
+	req.psm  = chan->psm;
+
+	chan->ident = l2cap_get_ident(conn);
+
+	set_bit(CONF_CONNECT_PEND, &chan->conf_state);
+
+	l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_REQ, sizeof(req), &req);
+}
+
+static void l2cap_do_start(struct l2cap_chan *chan)
+{
+	struct l2cap_conn *conn = chan->conn;
+
+	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) {
+		if (!(conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE))
+			return;
+
+		if (l2cap_chan_check_security(chan) &&
+				__l2cap_no_conn_pending(chan))
+			l2cap_send_conn_req(chan);
+	} else {
+		struct l2cap_info_req req;
+		req.type = cpu_to_le16(L2CAP_IT_FEAT_MASK);
+
+		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_SENT;
+		conn->info_ident = l2cap_get_ident(conn);
+
+		schedule_delayed_work(&conn->info_timer, L2CAP_INFO_TIMEOUT);
+
+		l2cap_send_cmd(conn, conn->info_ident,
+					L2CAP_INFO_REQ, sizeof(req), &req);
+	}
+}
+
+static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
+{
+	u32 local_feat_mask = l2cap_feat_mask;
+	if (!disable_ertm)
+		local_feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING;
+
+	switch (mode) {
+	case L2CAP_MODE_ERTM:
+		return L2CAP_FEAT_ERTM & feat_mask & local_feat_mask;
+	case L2CAP_MODE_STREAMING:
+		return L2CAP_FEAT_STREAMING & feat_mask & local_feat_mask;
+	default:
+		return 0x00;
+	}
+}
+
+static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err)
+{
+	struct sock *sk = chan->sk;
+	struct l2cap_disconn_req req;
+
+	if (!conn)
+		return;
+
+	if (chan->mode == L2CAP_MODE_ERTM) {
+		__clear_retrans_timer(chan);
+		__clear_monitor_timer(chan);
+		__clear_ack_timer(chan);
+	}
+
+	req.dcid = cpu_to_le16(chan->dcid);
+	req.scid = cpu_to_le16(chan->scid);
+	l2cap_send_cmd(conn, l2cap_get_ident(conn),
+			L2CAP_DISCONN_REQ, sizeof(req), &req);
+
+	lock_sock(sk);
+	__l2cap_state_change(chan, BT_DISCONN);
+	__l2cap_chan_set_err(chan, err);
+	release_sock(sk);
+}
+
+/* ---- L2CAP connections ---- */
+static void l2cap_conn_start(struct l2cap_conn *conn)
+{
+	struct l2cap_chan *chan, *tmp;
+
+	BT_DBG("conn %p", conn);
+
+	mutex_lock(&conn->chan_lock);
+
+	list_for_each_entry_safe(chan, tmp, &conn->chan_l, list) {
+		struct sock *sk = chan->sk;
+
+		l2cap_chan_lock(chan);
+
+		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
+			l2cap_chan_unlock(chan);
+			continue;
+		}
+
+		if (chan->state == BT_CONNECT) {
+			if (!l2cap_chan_check_security(chan) ||
+					!__l2cap_no_conn_pending(chan)) {
+				l2cap_chan_unlock(chan);
+				continue;
+			}
+
+			if (!l2cap_mode_supported(chan->mode, conn->feat_mask)
+					&& test_bit(CONF_STATE2_DEVICE,
+					&chan->conf_state)) {
+				l2cap_chan_close(chan, ECONNRESET);
+				l2cap_chan_unlock(chan);
+				continue;
+			}
+
+			l2cap_send_conn_req(chan);
+
+		} else if (chan->state == BT_CONNECT2) {
+			struct l2cap_conn_rsp rsp;
+			char buf[128];
+			rsp.scid = cpu_to_le16(chan->dcid);
+			rsp.dcid = cpu_to_le16(chan->scid);
+
+			if (l2cap_chan_check_security(chan)) {
+				lock_sock(sk);
+				if (bt_sk(sk)->defer_setup) {
+					struct sock *parent = bt_sk(sk)->parent;
+					rsp.result = cpu_to_le16(L2CAP_CR_PEND);
+					rsp.status = cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
+					if (parent)
+						parent->sk_data_ready(parent, 0);
+
+				} else {
+					__l2cap_state_change(chan, BT_CONFIG);
+					rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS);
+					rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
+				}
+				release_sock(sk);
+			} else {
+				rsp.result = cpu_to_le16(L2CAP_CR_PEND);
+				rsp.status = cpu_to_le16(L2CAP_CS_AUTHEN_PEND);
+			}
+
+			l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
+							sizeof(rsp), &rsp);
+
+			if (test_bit(CONF_REQ_SENT, &chan->conf_state) ||
+					rsp.result != L2CAP_CR_SUCCESS) {
+				l2cap_chan_unlock(chan);
+				continue;
+			}
+
+			set_bit(CONF_REQ_SENT, &chan->conf_state);
+			l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
+						l2cap_build_conf_req(chan, buf), buf);
+			chan->num_conf_req++;
+		}
+
+		l2cap_chan_unlock(chan);
+	}
+
+	mutex_unlock(&conn->chan_lock);
+}
+
+/* Find socket with cid and source bdaddr.
+ * Returns closest match, locked.
+ */
+static struct l2cap_chan *l2cap_global_chan_by_scid(int state, __le16 cid, bdaddr_t *src)
+{
+	struct l2cap_chan *c, *c1 = NULL;
+
+	read_lock(&chan_list_lock);
+
+	list_for_each_entry(c, &chan_list, global_l) {
+		struct sock *sk = c->sk;
+
+		if (state && c->state != state)
+			continue;
+
+		if (c->scid == cid) {
+			/* Exact match. */
+			if (!bacmp(&bt_sk(sk)->src, src)) {
+				read_unlock(&chan_list_lock);
+				return c;
+			}
+
+			/* Closest match */
+			if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY))
+				c1 = c;
+		}
+	}
+
+	read_unlock(&chan_list_lock);
+
+	return c1;
+}
+
+static void l2cap_le_conn_ready(struct l2cap_conn *conn)
+{
+	struct sock *parent, *sk;
+	struct l2cap_chan *chan, *pchan;
+
+	BT_DBG("");
+
+	/* Check if we have socket listening on cid */
+	pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_LE_DATA,
+							conn->src);
+	if (!pchan)
+		return;
+
+	parent = pchan->sk;
+
+	lock_sock(parent);
+
+	/* Check for backlog size */
+	if (sk_acceptq_is_full(parent)) {
+		BT_DBG("backlog full %d", parent->sk_ack_backlog);
+		goto clean;
+	}
+
+	chan = pchan->ops->new_connection(pchan->data);
+	if (!chan)
+		goto clean;
+
+	sk = chan->sk;
+
+	hci_conn_hold(conn->hcon);
+
+	bacpy(&bt_sk(sk)->src, conn->src);
+	bacpy(&bt_sk(sk)->dst, conn->dst);
+
+	bt_accept_enqueue(parent, sk);
+
+	l2cap_chan_add(conn, chan);
+
+	__set_chan_timer(chan, sk->sk_sndtimeo);
+
+	__l2cap_state_change(chan, BT_CONNECTED);
+	parent->sk_data_ready(parent, 0);
+
+clean:
+	release_sock(parent);
+}
+
+static void l2cap_chan_ready(struct l2cap_chan *chan)
+{
+	struct sock *sk = chan->sk;
+	struct sock *parent;
+
+	lock_sock(sk);
+
+	parent = bt_sk(sk)->parent;
+
+	BT_DBG("sk %p, parent %p", sk, parent);
+
+	chan->conf_state = 0;
+	__clear_chan_timer(chan);
+
+	__l2cap_state_change(chan, BT_CONNECTED);
+	sk->sk_state_change(sk);
+
+	if (parent)
+		parent->sk_data_ready(parent, 0);
+
+	release_sock(sk);
+}
+
+static void l2cap_conn_ready(struct l2cap_conn *conn)
+{
+	struct l2cap_chan *chan;
+
+	BT_DBG("conn %p", conn);
+
+	if (!conn->hcon->out && conn->hcon->type == LE_LINK)
+		l2cap_le_conn_ready(conn);
+
+	if (conn->hcon->out && conn->hcon->type == LE_LINK)
+		smp_conn_security(conn, conn->hcon->pending_sec_level);
+
+	mutex_lock(&conn->chan_lock);
+
+	list_for_each_entry(chan, &conn->chan_l, list) {
+
+		l2cap_chan_lock(chan);
+
+		if (conn->hcon->type == LE_LINK) {
+			if (smp_conn_security(conn, chan->sec_level))
+				l2cap_chan_ready(chan);
+
+		} else if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
+			struct sock *sk = chan->sk;
+			__clear_chan_timer(chan);
+			lock_sock(sk);
+			__l2cap_state_change(chan, BT_CONNECTED);
+			sk->sk_state_change(sk);
+			release_sock(sk);
+
+		} else if (chan->state == BT_CONNECT)
+			l2cap_do_start(chan);
+
+		l2cap_chan_unlock(chan);
+	}
+
+	mutex_unlock(&conn->chan_lock);
+}
+
+/* Notify sockets that we cannot guaranty reliability anymore */
+static void l2cap_conn_unreliable(struct l2cap_conn *conn, int err)
+{
+	struct l2cap_chan *chan;
+
+	BT_DBG("conn %p", conn);
+
+	mutex_lock(&conn->chan_lock);
+
+	list_for_each_entry(chan, &conn->chan_l, list) {
+		if (test_bit(FLAG_FORCE_RELIABLE, &chan->flags))
+			__l2cap_chan_set_err(chan, err);
+	}
+
+	mutex_unlock(&conn->chan_lock);
+}
+
+static void l2cap_info_timeout(struct work_struct *work)
+{
+	struct l2cap_conn *conn = container_of(work, struct l2cap_conn,
+							info_timer.work);
+
+	conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+	conn->info_ident = 0;
+
+	l2cap_conn_start(conn);
+}
+
+static void l2cap_conn_del(struct hci_conn *hcon, int err)
+{
+	struct l2cap_conn *conn = hcon->l2cap_data;
+	struct l2cap_chan *chan, *l;
+
+	if (!conn)
+		return;
+
+	BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
+
+	kfree_skb(conn->rx_skb);
+
+	mutex_lock(&conn->chan_lock);
+
+	/* Kill channels */
+	list_for_each_entry_safe(chan, l, &conn->chan_l, list) {
+		l2cap_chan_lock(chan);
+
+		l2cap_chan_del(chan, err);
+
+		l2cap_chan_unlock(chan);
+
+		chan->ops->close(chan->data);
+	}
+
+	mutex_unlock(&conn->chan_lock);
+
+	hci_chan_del(conn->hchan);
+
+	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT)
+		cancel_delayed_work_sync(&conn->info_timer);
+
+	if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags)) {
+		cancel_delayed_work_sync(&conn->security_timer);
+		smp_chan_destroy(conn);
+	}
+
+	hcon->l2cap_data = NULL;
+	kfree(conn);
+}
+
+static void security_timeout(struct work_struct *work)
+{
+	struct l2cap_conn *conn = container_of(work, struct l2cap_conn,
+						security_timer.work);
+
+	l2cap_conn_del(conn->hcon, ETIMEDOUT);
+}
+
+static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
+{
+	struct l2cap_conn *conn = hcon->l2cap_data;
+	struct hci_chan *hchan;
+
+	if (conn || status)
+		return conn;
+
+	hchan = hci_chan_create(hcon);
+	if (!hchan)
+		return NULL;
+
+	conn = kzalloc(sizeof(struct l2cap_conn), GFP_ATOMIC);
+	if (!conn) {
+		hci_chan_del(hchan);
+		return NULL;
+	}
+
+	hcon->l2cap_data = conn;
+	conn->hcon = hcon;
+	conn->hchan = hchan;
+
+	BT_DBG("hcon %p conn %p hchan %p", hcon, conn, hchan);
+
+	if (hcon->hdev->le_mtu && hcon->type == LE_LINK)
+		conn->mtu = hcon->hdev->le_mtu;
+	else
+		conn->mtu = hcon->hdev->acl_mtu;
+
+	conn->src = &hcon->hdev->bdaddr;
+	conn->dst = &hcon->dst;
+
+	conn->feat_mask = 0;
+
+	spin_lock_init(&conn->lock);
+	mutex_init(&conn->chan_lock);
+
+	INIT_LIST_HEAD(&conn->chan_l);
+
+	if (hcon->type == LE_LINK)
+		INIT_DELAYED_WORK(&conn->security_timer, security_timeout);
+	else
+		INIT_DELAYED_WORK(&conn->info_timer, l2cap_info_timeout);
+
+	conn->disc_reason = HCI_ERROR_REMOTE_USER_TERM;
+
+	return conn;
+}
+
+/* ---- Socket interface ---- */
+
+/* Find socket with psm and source bdaddr.
+ * Returns closest match.
+ */
+static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm, bdaddr_t *src)
+{
+	struct l2cap_chan *c, *c1 = NULL;
+
+	read_lock(&chan_list_lock);
+
+	list_for_each_entry(c, &chan_list, global_l) {
+		struct sock *sk = c->sk;
+
+		if (state && c->state != state)
+			continue;
+
+		if (c->psm == psm) {
+			/* Exact match. */
+			if (!bacmp(&bt_sk(sk)->src, src)) {
+				read_unlock(&chan_list_lock);
+				return c;
+			}
+
+			/* Closest match */
+			if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY))
+				c1 = c;
+		}
+	}
+
+	read_unlock(&chan_list_lock);
+
+	return c1;
+}
+
+int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, bdaddr_t *dst)
+{
+	struct sock *sk = chan->sk;
+	bdaddr_t *src = &bt_sk(sk)->src;
+	struct l2cap_conn *conn;
+	struct hci_conn *hcon;
+	struct hci_dev *hdev;
+	__u8 auth_type;
+	int err;
+
+	BT_DBG("%s -> %s psm 0x%2.2x", batostr(src), batostr(dst),
+							chan->psm);
+
+	hdev = hci_get_route(dst, src);
+	if (!hdev)
+		return -EHOSTUNREACH;
+
+	hci_dev_lock(hdev);
+
+	l2cap_chan_lock(chan);
+
+	/* PSM must be odd and lsb of upper byte must be 0 */
+	if ((__le16_to_cpu(psm) & 0x0101) != 0x0001 && !cid &&
+					chan->chan_type != L2CAP_CHAN_RAW) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED && !(psm || cid)) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	switch (chan->mode) {
+	case L2CAP_MODE_BASIC:
+		break;
+	case L2CAP_MODE_ERTM:
+	case L2CAP_MODE_STREAMING:
+		if (!disable_ertm)
+			break;
+		/* fall through */
+	default:
+		err = -ENOTSUPP;
+		goto done;
+	}
+
+	lock_sock(sk);
+
+	switch (sk->sk_state) {
+	case BT_CONNECT:
+	case BT_CONNECT2:
+	case BT_CONFIG:
+		/* Already connecting */
+		err = 0;
+		release_sock(sk);
+		goto done;
+
+	case BT_CONNECTED:
+		/* Already connected */
+		err = -EISCONN;
+		release_sock(sk);
+		goto done;
+
+	case BT_OPEN:
+	case BT_BOUND:
+		/* Can connect */
+		break;
+
+	default:
+		err = -EBADFD;
+		release_sock(sk);
+		goto done;
+	}
+
+	/* Set destination address and psm */
+	bacpy(&bt_sk(sk)->dst, dst);
+
+	release_sock(sk);
+
+	chan->psm = psm;
+	chan->dcid = cid;
+
+	auth_type = l2cap_get_auth_type(chan);
+
+	if (chan->dcid == L2CAP_CID_LE_DATA)
+		hcon = hci_connect(hdev, LE_LINK, dst,
+					chan->sec_level, auth_type);
+	else
+		hcon = hci_connect(hdev, ACL_LINK, dst,
+					chan->sec_level, auth_type);
+
+	if (IS_ERR(hcon)) {
+		err = PTR_ERR(hcon);
+		goto done;
+	}
+
+	conn = l2cap_conn_add(hcon, 0);
+	if (!conn) {
+		hci_conn_put(hcon);
+		err = -ENOMEM;
+		goto done;
+	}
+
+	/* Update source addr of the socket */
+	bacpy(src, conn->src);
+
+	l2cap_chan_unlock(chan);
+	l2cap_chan_add(conn, chan);
+	l2cap_chan_lock(chan);
+
+	l2cap_state_change(chan, BT_CONNECT);
+	__set_chan_timer(chan, sk->sk_sndtimeo);
+
+	if (hcon->state == BT_CONNECTED) {
+		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
+			__clear_chan_timer(chan);
+			if (l2cap_chan_check_security(chan))
+				l2cap_state_change(chan, BT_CONNECTED);
+		} else
+			l2cap_do_start(chan);
+	}
+
+	err = 0;
+
+done:
+	l2cap_chan_unlock(chan);
+	hci_dev_unlock(hdev);
+	hci_dev_put(hdev);
+	return err;
+}
+
+int __l2cap_wait_ack(struct sock *sk)
+{
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	DECLARE_WAITQUEUE(wait, current);
+	int err = 0;
+	int timeo = HZ/5;
+
+	add_wait_queue(sk_sleep(sk), &wait);
+	set_current_state(TASK_INTERRUPTIBLE);
+	while (chan->unacked_frames > 0 && chan->conn) {
+		if (!timeo)
+			timeo = HZ/5;
+
+		if (signal_pending(current)) {
+			err = sock_intr_errno(timeo);
+			break;
+		}
+
+		release_sock(sk);
+		timeo = schedule_timeout(timeo);
+		lock_sock(sk);
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		err = sock_error(sk);
+		if (err)
+			break;
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+	return err;
+}
+
+static void l2cap_monitor_timeout(struct work_struct *work)
+{
+	struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
+							monitor_timer.work);
+
+	BT_DBG("chan %p", chan);
+
+	l2cap_chan_lock(chan);
+
+	if (chan->retry_count >= chan->remote_max_tx) {
+		l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
+		l2cap_chan_unlock(chan);
+		l2cap_chan_put(chan);
+		return;
+	}
+
+	chan->retry_count++;
+	__set_monitor_timer(chan);
+
+	l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_POLL);
+	l2cap_chan_unlock(chan);
+	l2cap_chan_put(chan);
+}
+
+static void l2cap_retrans_timeout(struct work_struct *work)
+{
+	struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
+							retrans_timer.work);
+
+	BT_DBG("chan %p", chan);
+
+	l2cap_chan_lock(chan);
+
+	chan->retry_count = 1;
+	__set_monitor_timer(chan);
+
+	set_bit(CONN_WAIT_F, &chan->conn_state);
+
+	l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_POLL);
+
+	l2cap_chan_unlock(chan);
+	l2cap_chan_put(chan);
+}
+
+static void l2cap_drop_acked_frames(struct l2cap_chan *chan)
+{
+	struct sk_buff *skb;
+
+	while ((skb = skb_peek(&chan->tx_q)) &&
+			chan->unacked_frames) {
+		if (bt_cb(skb)->tx_seq == chan->expected_ack_seq)
+			break;
+
+		skb = skb_dequeue(&chan->tx_q);
+		kfree_skb(skb);
+
+		chan->unacked_frames--;
+	}
+
+	if (!chan->unacked_frames)
+		__clear_retrans_timer(chan);
+}
+
+static void l2cap_streaming_send(struct l2cap_chan *chan)
+{
+	struct sk_buff *skb;
+	u32 control;
+	u16 fcs;
+
+	while ((skb = skb_dequeue(&chan->tx_q))) {
+		control = __get_control(chan, skb->data + L2CAP_HDR_SIZE);
+		control |= __set_txseq(chan, chan->next_tx_seq);
+		__put_control(chan, control, skb->data + L2CAP_HDR_SIZE);
+
+		if (chan->fcs == L2CAP_FCS_CRC16) {
+			fcs = crc16(0, (u8 *)skb->data,
+						skb->len - L2CAP_FCS_SIZE);
+			put_unaligned_le16(fcs,
+					skb->data + skb->len - L2CAP_FCS_SIZE);
+		}
+
+		l2cap_do_send(chan, skb);
+
+		chan->next_tx_seq = __next_seq(chan, chan->next_tx_seq);
+	}
+}
+
+static void l2cap_retransmit_one_frame(struct l2cap_chan *chan, u16 tx_seq)
+{
+	struct sk_buff *skb, *tx_skb;
+	u16 fcs;
+	u32 control;
+
+	skb = skb_peek(&chan->tx_q);
+	if (!skb)
+		return;
+
+	while (bt_cb(skb)->tx_seq != tx_seq) {
+		if (skb_queue_is_last(&chan->tx_q, skb))
+			return;
+
+		skb = skb_queue_next(&chan->tx_q, skb);
+	}
+
+	if (chan->remote_max_tx &&
+			bt_cb(skb)->retries == chan->remote_max_tx) {
+		l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
+		return;
+	}
+
+	tx_skb = skb_clone(skb, GFP_ATOMIC);
+	bt_cb(skb)->retries++;
+
+	control = __get_control(chan, tx_skb->data + L2CAP_HDR_SIZE);
+	control &= __get_sar_mask(chan);
+
+	if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
+		control |= __set_ctrl_final(chan);
+
+	control |= __set_reqseq(chan, chan->buffer_seq);
+	control |= __set_txseq(chan, tx_seq);
+
+	__put_control(chan, control, tx_skb->data + L2CAP_HDR_SIZE);
+
+	if (chan->fcs == L2CAP_FCS_CRC16) {
+		fcs = crc16(0, (u8 *)tx_skb->data,
+						tx_skb->len - L2CAP_FCS_SIZE);
+		put_unaligned_le16(fcs,
+				tx_skb->data + tx_skb->len - L2CAP_FCS_SIZE);
+	}
+
+	l2cap_do_send(chan, tx_skb);
+}
+
+static int l2cap_ertm_send(struct l2cap_chan *chan)
+{
+	struct sk_buff *skb, *tx_skb;
+	u16 fcs;
+	u32 control;
+	int nsent = 0;
+
+	if (chan->state != BT_CONNECTED)
+		return -ENOTCONN;
+
+	while ((skb = chan->tx_send_head) && (!l2cap_tx_window_full(chan))) {
+
+		if (chan->remote_max_tx &&
+				bt_cb(skb)->retries == chan->remote_max_tx) {
+			l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
+			break;
+		}
+
+		tx_skb = skb_clone(skb, GFP_ATOMIC);
+
+		bt_cb(skb)->retries++;
+
+		control = __get_control(chan, tx_skb->data + L2CAP_HDR_SIZE);
+		control &= __get_sar_mask(chan);
+
+		if (test_and_clear_bit(CONN_SEND_FBIT, &chan->conn_state))
+			control |= __set_ctrl_final(chan);
+
+		control |= __set_reqseq(chan, chan->buffer_seq);
+		control |= __set_txseq(chan, chan->next_tx_seq);
+
+		__put_control(chan, control, tx_skb->data + L2CAP_HDR_SIZE);
+
+		if (chan->fcs == L2CAP_FCS_CRC16) {
+			fcs = crc16(0, (u8 *)skb->data,
+						tx_skb->len - L2CAP_FCS_SIZE);
+			put_unaligned_le16(fcs, skb->data +
+						tx_skb->len - L2CAP_FCS_SIZE);
+		}
+
+		l2cap_do_send(chan, tx_skb);
+
+		__set_retrans_timer(chan);
+
+		bt_cb(skb)->tx_seq = chan->next_tx_seq;
+
+		chan->next_tx_seq = __next_seq(chan, chan->next_tx_seq);
+
+		if (bt_cb(skb)->retries == 1) {
+			chan->unacked_frames++;
+
+			if (!nsent++)
+				__clear_ack_timer(chan);
+		}
+
+		chan->frames_sent++;
+
+		if (skb_queue_is_last(&chan->tx_q, skb))
+			chan->tx_send_head = NULL;
+		else
+			chan->tx_send_head = skb_queue_next(&chan->tx_q, skb);
+	}
+
+	return nsent;
+}
+
+static int l2cap_retransmit_frames(struct l2cap_chan *chan)
+{
+	int ret;
+
+	if (!skb_queue_empty(&chan->tx_q))
+		chan->tx_send_head = chan->tx_q.next;
+
+	chan->next_tx_seq = chan->expected_ack_seq;
+	ret = l2cap_ertm_send(chan);
+	return ret;
+}
+
+static void __l2cap_send_ack(struct l2cap_chan *chan)
+{
+	u32 control = 0;
+
+	control |= __set_reqseq(chan, chan->buffer_seq);
+
+	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+		control |= __set_ctrl_super(chan, L2CAP_SUPER_RNR);
+		set_bit(CONN_RNR_SENT, &chan->conn_state);
+		l2cap_send_sframe(chan, control);
+		return;
+	}
+
+	if (l2cap_ertm_send(chan) > 0)
+		return;
+
+	control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
+	l2cap_send_sframe(chan, control);
+}
+
+static void l2cap_send_ack(struct l2cap_chan *chan)
+{
+	__clear_ack_timer(chan);
+	__l2cap_send_ack(chan);
+}
+
+static void l2cap_send_srejtail(struct l2cap_chan *chan)
+{
+	struct srej_list *tail;
+	u32 control;
+
+	control = __set_ctrl_super(chan, L2CAP_SUPER_SREJ);
+	control |= __set_ctrl_final(chan);
+
+	tail = list_entry((&chan->srej_l)->prev, struct srej_list, list);
+	control |= __set_reqseq(chan, tail->tx_seq);
+
+	l2cap_send_sframe(chan, control);
+}
+
+static inline int l2cap_skbuff_fromiovec(struct l2cap_chan *chan,
+					 struct msghdr *msg, int len,
+					 int count, struct sk_buff *skb)
+{
+	struct l2cap_conn *conn = chan->conn;
+	struct sk_buff **frag;
+	int err, sent = 0;
+
+	if (memcpy_fromiovec(skb_put(skb, count), msg->msg_iov, count))
+		return -EFAULT;
+
+	sent += count;
+	len  -= count;
+
+	/* Continuation fragments (no L2CAP header) */
+	frag = &skb_shinfo(skb)->frag_list;
+	while (len) {
+		count = min_t(unsigned int, conn->mtu, len);
+
+		*frag = chan->ops->alloc_skb(chan, count,
+					     msg->msg_flags & MSG_DONTWAIT,
+					     &err);
+
+		if (!*frag)
+			return err;
+		if (memcpy_fromiovec(skb_put(*frag, count), msg->msg_iov, count))
+			return -EFAULT;
+
+		(*frag)->priority = skb->priority;
+
+		sent += count;
+		len  -= count;
+
+		frag = &(*frag)->next;
+	}
+
+	return sent;
+}
+
+static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan,
+						struct msghdr *msg, size_t len,
+						u32 priority)
+{
+	struct l2cap_conn *conn = chan->conn;
+	struct sk_buff *skb;
+	int err, count, hlen = L2CAP_HDR_SIZE + L2CAP_PSMLEN_SIZE;
+	struct l2cap_hdr *lh;
+
+	BT_DBG("chan %p len %d priority %u", chan, (int)len, priority);
+
+	count = min_t(unsigned int, (conn->mtu - hlen), len);
+
+	skb = chan->ops->alloc_skb(chan, count + hlen,
+				   msg->msg_flags & MSG_DONTWAIT, &err);
+
+	if (!skb)
+		return ERR_PTR(err);
+
+	skb->priority = priority;
+
+	/* Create L2CAP header */
+	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+	lh->cid = cpu_to_le16(chan->dcid);
+	lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
+	put_unaligned_le16(chan->psm, skb_put(skb, 2));
+
+	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
+	if (unlikely(err < 0)) {
+		kfree_skb(skb);
+		return ERR_PTR(err);
+	}
+	return skb;
+}
+
+static struct sk_buff *l2cap_create_basic_pdu(struct l2cap_chan *chan,
+						struct msghdr *msg, size_t len,
+						u32 priority)
+{
+	struct l2cap_conn *conn = chan->conn;
+	struct sk_buff *skb;
+	int err, count, hlen = L2CAP_HDR_SIZE;
+	struct l2cap_hdr *lh;
+
+	BT_DBG("chan %p len %d", chan, (int)len);
+
+	count = min_t(unsigned int, (conn->mtu - hlen), len);
+
+	skb = chan->ops->alloc_skb(chan, count + hlen,
+				   msg->msg_flags & MSG_DONTWAIT, &err);
+
+	if (!skb)
+		return ERR_PTR(err);
+
+	skb->priority = priority;
+
+	/* Create L2CAP header */
+	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+	lh->cid = cpu_to_le16(chan->dcid);
+	lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
+
+	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
+	if (unlikely(err < 0)) {
+		kfree_skb(skb);
+		return ERR_PTR(err);
+	}
+	return skb;
+}
+
+static struct sk_buff *l2cap_create_iframe_pdu(struct l2cap_chan *chan,
+						struct msghdr *msg, size_t len,
+						u32 control, u16 sdulen)
+{
+	struct l2cap_conn *conn = chan->conn;
+	struct sk_buff *skb;
+	int err, count, hlen;
+	struct l2cap_hdr *lh;
+
+	BT_DBG("chan %p len %d", chan, (int)len);
+
+	if (!conn)
+		return ERR_PTR(-ENOTCONN);
+
+	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
+		hlen = L2CAP_EXT_HDR_SIZE;
+	else
+		hlen = L2CAP_ENH_HDR_SIZE;
+
+	if (sdulen)
+		hlen += L2CAP_SDULEN_SIZE;
+
+	if (chan->fcs == L2CAP_FCS_CRC16)
+		hlen += L2CAP_FCS_SIZE;
+
+	count = min_t(unsigned int, (conn->mtu - hlen), len);
+
+	skb = chan->ops->alloc_skb(chan, count + hlen,
+					msg->msg_flags & MSG_DONTWAIT, &err);
+
+	if (!skb)
+		return ERR_PTR(err);
+
+	/* Create L2CAP header */
+	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+	lh->cid = cpu_to_le16(chan->dcid);
+	lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
+
+	__put_control(chan, control, skb_put(skb, __ctrl_size(chan)));
+
+	if (sdulen)
+		put_unaligned_le16(sdulen, skb_put(skb, L2CAP_SDULEN_SIZE));
+
+	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
+	if (unlikely(err < 0)) {
+		kfree_skb(skb);
+		return ERR_PTR(err);
+	}
+
+	if (chan->fcs == L2CAP_FCS_CRC16)
+		put_unaligned_le16(0, skb_put(skb, L2CAP_FCS_SIZE));
+
+	bt_cb(skb)->retries = 0;
+	return skb;
+}
+
+static int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len)
+{
+	struct sk_buff *skb;
+	struct sk_buff_head sar_queue;
+	u32 control;
+	size_t size = 0;
+
+	skb_queue_head_init(&sar_queue);
+	control = __set_ctrl_sar(chan, L2CAP_SAR_START);
+	skb = l2cap_create_iframe_pdu(chan, msg, chan->remote_mps, control, len);
+	if (IS_ERR(skb))
+		return PTR_ERR(skb);
+
+	__skb_queue_tail(&sar_queue, skb);
+	len -= chan->remote_mps;
+	size += chan->remote_mps;
+
+	while (len > 0) {
+		size_t buflen;
+
+		if (len > chan->remote_mps) {
+			control = __set_ctrl_sar(chan, L2CAP_SAR_CONTINUE);
+			buflen = chan->remote_mps;
+		} else {
+			control = __set_ctrl_sar(chan, L2CAP_SAR_END);
+			buflen = len;
+		}
+
+		skb = l2cap_create_iframe_pdu(chan, msg, buflen, control, 0);
+		if (IS_ERR(skb)) {
+			skb_queue_purge(&sar_queue);
+			return PTR_ERR(skb);
+		}
+
+		__skb_queue_tail(&sar_queue, skb);
+		len -= buflen;
+		size += buflen;
+	}
+	skb_queue_splice_tail(&sar_queue, &chan->tx_q);
+	if (chan->tx_send_head == NULL)
+		chan->tx_send_head = sar_queue.next;
+
+	return size;
+}
+
+int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len,
+								u32 priority)
+{
+	struct sk_buff *skb;
+	u32 control;
+	int err;
+
+	/* Connectionless channel */
+	if (chan->chan_type == L2CAP_CHAN_CONN_LESS) {
+		skb = l2cap_create_connless_pdu(chan, msg, len, priority);
+		if (IS_ERR(skb))
+			return PTR_ERR(skb);
+
+		l2cap_do_send(chan, skb);
+		return len;
+	}
+
+	switch (chan->mode) {
+	case L2CAP_MODE_BASIC:
+		/* Check outgoing MTU */
+		if (len > chan->omtu)
+			return -EMSGSIZE;
+
+		/* Create a basic PDU */
+		skb = l2cap_create_basic_pdu(chan, msg, len, priority);
+		if (IS_ERR(skb))
+			return PTR_ERR(skb);
+
+		l2cap_do_send(chan, skb);
+		err = len;
+		break;
+
+	case L2CAP_MODE_ERTM:
+	case L2CAP_MODE_STREAMING:
+		/* Entire SDU fits into one PDU */
+		if (len <= chan->remote_mps) {
+			control = __set_ctrl_sar(chan, L2CAP_SAR_UNSEGMENTED);
+			skb = l2cap_create_iframe_pdu(chan, msg, len, control,
+									0);
+			if (IS_ERR(skb))
+				return PTR_ERR(skb);
+
+			__skb_queue_tail(&chan->tx_q, skb);
+
+			if (chan->tx_send_head == NULL)
+				chan->tx_send_head = skb;
+
+		} else {
+			/* Segment SDU into multiples PDUs */
+			err = l2cap_sar_segment_sdu(chan, msg, len);
+			if (err < 0)
+				return err;
+		}
+
+		if (chan->mode == L2CAP_MODE_STREAMING) {
+			l2cap_streaming_send(chan);
+			err = len;
+			break;
+		}
+
+		if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state) &&
+				test_bit(CONN_WAIT_F, &chan->conn_state)) {
+			err = len;
+			break;
+		}
+
+		err = l2cap_ertm_send(chan);
+		if (err >= 0)
+			err = len;
+
+		break;
+
+	default:
+		BT_DBG("bad state %1.1x", chan->mode);
+		err = -EBADFD;
+	}
+
+	return err;
+}
+
+/* Copy frame to all raw sockets on that connection */
+static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	struct sk_buff *nskb;
+	struct l2cap_chan *chan;
+
+	BT_DBG("conn %p", conn);
+
+	mutex_lock(&conn->chan_lock);
+
+	list_for_each_entry(chan, &conn->chan_l, list) {
+		struct sock *sk = chan->sk;
+		if (chan->chan_type != L2CAP_CHAN_RAW)
+			continue;
+
+		/* Don't send frame to the socket it came from */
+		if (skb->sk == sk)
+			continue;
+		nskb = skb_clone(skb, GFP_ATOMIC);
+		if (!nskb)
+			continue;
+
+		if (chan->ops->recv(chan->data, nskb))
+			kfree_skb(nskb);
+	}
+
+	mutex_unlock(&conn->chan_lock);
+}
+
+/* ---- L2CAP signalling commands ---- */
+static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
+				u8 code, u8 ident, u16 dlen, void *data)
+{
+	struct sk_buff *skb, **frag;
+	struct l2cap_cmd_hdr *cmd;
+	struct l2cap_hdr *lh;
+	int len, count;
+
+	BT_DBG("conn %p, code 0x%2.2x, ident 0x%2.2x, len %d",
+			conn, code, ident, dlen);
+
+	len = L2CAP_HDR_SIZE + L2CAP_CMD_HDR_SIZE + dlen;
+	count = min_t(unsigned int, conn->mtu, len);
+
+	skb = bt_skb_alloc(count, GFP_ATOMIC);
+	if (!skb)
+		return NULL;
+
+	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+	lh->len = cpu_to_le16(L2CAP_CMD_HDR_SIZE + dlen);
+
+	if (conn->hcon->type == LE_LINK)
+		lh->cid = cpu_to_le16(L2CAP_CID_LE_SIGNALING);
+	else
+		lh->cid = cpu_to_le16(L2CAP_CID_SIGNALING);
+
+	cmd = (struct l2cap_cmd_hdr *) skb_put(skb, L2CAP_CMD_HDR_SIZE);
+	cmd->code  = code;
+	cmd->ident = ident;
+	cmd->len   = cpu_to_le16(dlen);
+
+	if (dlen) {
+		count -= L2CAP_HDR_SIZE + L2CAP_CMD_HDR_SIZE;
+		memcpy(skb_put(skb, count), data, count);
+		data += count;
+	}
+
+	len -= skb->len;
+
+	/* Continuation fragments (no L2CAP header) */
+	frag = &skb_shinfo(skb)->frag_list;
+	while (len) {
+		count = min_t(unsigned int, conn->mtu, len);
+
+		*frag = bt_skb_alloc(count, GFP_ATOMIC);
+		if (!*frag)
+			goto fail;
+
+		memcpy(skb_put(*frag, count), data, count);
+
+		len  -= count;
+		data += count;
+
+		frag = &(*frag)->next;
+	}
+
+	return skb;
+
+fail:
+	kfree_skb(skb);
+	return NULL;
+}
+
+static inline int l2cap_get_conf_opt(void **ptr, int *type, int *olen, unsigned long *val)
+{
+	struct l2cap_conf_opt *opt = *ptr;
+	int len;
+
+	len = L2CAP_CONF_OPT_SIZE + opt->len;
+	*ptr += len;
+
+	*type = opt->type;
+	*olen = opt->len;
+
+	switch (opt->len) {
+	case 1:
+		*val = *((u8 *) opt->val);
+		break;
+
+	case 2:
+		*val = get_unaligned_le16(opt->val);
+		break;
+
+	case 4:
+		*val = get_unaligned_le32(opt->val);
+		break;
+
+	default:
+		*val = (unsigned long) opt->val;
+		break;
+	}
+
+	BT_DBG("type 0x%2.2x len %d val 0x%lx", *type, opt->len, *val);
+	return len;
+}
+
+static void l2cap_add_conf_opt(void **ptr, u8 type, u8 len, unsigned long val)
+{
+	struct l2cap_conf_opt *opt = *ptr;
+
+	BT_DBG("type 0x%2.2x len %d val 0x%lx", type, len, val);
+
+	opt->type = type;
+	opt->len  = len;
+
+	switch (len) {
+	case 1:
+		*((u8 *) opt->val)  = val;
+		break;
+
+	case 2:
+		put_unaligned_le16(val, opt->val);
+		break;
+
+	case 4:
+		put_unaligned_le32(val, opt->val);
+		break;
+
+	default:
+		memcpy(opt->val, (void *) val, len);
+		break;
+	}
+
+	*ptr += L2CAP_CONF_OPT_SIZE + len;
+}
+
+static void l2cap_add_opt_efs(void **ptr, struct l2cap_chan *chan)
+{
+	struct l2cap_conf_efs efs;
+
+	switch (chan->mode) {
+	case L2CAP_MODE_ERTM:
+		efs.id		= chan->local_id;
+		efs.stype	= chan->local_stype;
+		efs.msdu	= cpu_to_le16(chan->local_msdu);
+		efs.sdu_itime	= cpu_to_le32(chan->local_sdu_itime);
+		efs.acc_lat	= cpu_to_le32(L2CAP_DEFAULT_ACC_LAT);
+		efs.flush_to	= cpu_to_le32(L2CAP_DEFAULT_FLUSH_TO);
+		break;
+
+	case L2CAP_MODE_STREAMING:
+		efs.id		= 1;
+		efs.stype	= L2CAP_SERV_BESTEFFORT;
+		efs.msdu	= cpu_to_le16(chan->local_msdu);
+		efs.sdu_itime	= cpu_to_le32(chan->local_sdu_itime);
+		efs.acc_lat	= 0;
+		efs.flush_to	= 0;
+		break;
+
+	default:
+		return;
+	}
+
+	l2cap_add_conf_opt(ptr, L2CAP_CONF_EFS, sizeof(efs),
+							(unsigned long) &efs);
+}
+
+static void l2cap_ack_timeout(struct work_struct *work)
+{
+	struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
+							ack_timer.work);
+
+	BT_DBG("chan %p", chan);
+
+	l2cap_chan_lock(chan);
+
+	__l2cap_send_ack(chan);
+
+	l2cap_chan_unlock(chan);
+
+	l2cap_chan_put(chan);
+}
+
+static inline void l2cap_ertm_init(struct l2cap_chan *chan)
+{
+	chan->expected_ack_seq = 0;
+	chan->unacked_frames = 0;
+	chan->buffer_seq = 0;
+	chan->num_acked = 0;
+	chan->frames_sent = 0;
+
+	INIT_DELAYED_WORK(&chan->retrans_timer, l2cap_retrans_timeout);
+	INIT_DELAYED_WORK(&chan->monitor_timer, l2cap_monitor_timeout);
+	INIT_DELAYED_WORK(&chan->ack_timer, l2cap_ack_timeout);
+
+	skb_queue_head_init(&chan->srej_q);
+
+	INIT_LIST_HEAD(&chan->srej_l);
+}
+
+static inline __u8 l2cap_select_mode(__u8 mode, __u16 remote_feat_mask)
+{
+	switch (mode) {
+	case L2CAP_MODE_STREAMING:
+	case L2CAP_MODE_ERTM:
+		if (l2cap_mode_supported(mode, remote_feat_mask))
+			return mode;
+		/* fall through */
+	default:
+		return L2CAP_MODE_BASIC;
+	}
+}
+
+static inline bool __l2cap_ews_supported(struct l2cap_chan *chan)
+{
+	return enable_hs && chan->conn->feat_mask & L2CAP_FEAT_EXT_WINDOW;
+}
+
+static inline bool __l2cap_efs_supported(struct l2cap_chan *chan)
+{
+	return enable_hs && chan->conn->feat_mask & L2CAP_FEAT_EXT_FLOW;
+}
+
+static inline void l2cap_txwin_setup(struct l2cap_chan *chan)
+{
+	if (chan->tx_win > L2CAP_DEFAULT_TX_WINDOW &&
+						__l2cap_ews_supported(chan)) {
+		/* use extended control field */
+		set_bit(FLAG_EXT_CTRL, &chan->flags);
+		chan->tx_win_max = L2CAP_DEFAULT_EXT_WINDOW;
+	} else {
+		chan->tx_win = min_t(u16, chan->tx_win,
+						L2CAP_DEFAULT_TX_WINDOW);
+		chan->tx_win_max = L2CAP_DEFAULT_TX_WINDOW;
+	}
+}
+
+static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data)
+{
+	struct l2cap_conf_req *req = data;
+	struct l2cap_conf_rfc rfc = { .mode = chan->mode };
+	void *ptr = req->data;
+	u16 size;
+
+	BT_DBG("chan %p", chan);
+
+	if (chan->num_conf_req || chan->num_conf_rsp)
+		goto done;
+
+	switch (chan->mode) {
+	case L2CAP_MODE_STREAMING:
+	case L2CAP_MODE_ERTM:
+		if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state))
+			break;
+
+		if (__l2cap_efs_supported(chan))
+			set_bit(FLAG_EFS_ENABLE, &chan->flags);
+
+		/* fall through */
+	default:
+		chan->mode = l2cap_select_mode(rfc.mode, chan->conn->feat_mask);
+		break;
+	}
+
+done:
+	if (chan->imtu != L2CAP_DEFAULT_MTU)
+		l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu);
+
+	switch (chan->mode) {
+	case L2CAP_MODE_BASIC:
+		if (!(chan->conn->feat_mask & L2CAP_FEAT_ERTM) &&
+				!(chan->conn->feat_mask & L2CAP_FEAT_STREAMING))
+			break;
+
+		rfc.mode            = L2CAP_MODE_BASIC;
+		rfc.txwin_size      = 0;
+		rfc.max_transmit    = 0;
+		rfc.retrans_timeout = 0;
+		rfc.monitor_timeout = 0;
+		rfc.max_pdu_size    = 0;
+
+		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
+							(unsigned long) &rfc);
+		break;
+
+	case L2CAP_MODE_ERTM:
+		rfc.mode            = L2CAP_MODE_ERTM;
+		rfc.max_transmit    = chan->max_tx;
+		rfc.retrans_timeout = 0;
+		rfc.monitor_timeout = 0;
+
+		size = min_t(u16, L2CAP_DEFAULT_MAX_PDU_SIZE, chan->conn->mtu -
+						L2CAP_EXT_HDR_SIZE -
+						L2CAP_SDULEN_SIZE -
+						L2CAP_FCS_SIZE);
+		rfc.max_pdu_size = cpu_to_le16(size);
+
+		l2cap_txwin_setup(chan);
+
+		rfc.txwin_size = min_t(u16, chan->tx_win,
+						L2CAP_DEFAULT_TX_WINDOW);
+
+		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
+							(unsigned long) &rfc);
+
+		if (test_bit(FLAG_EFS_ENABLE, &chan->flags))
+			l2cap_add_opt_efs(&ptr, chan);
+
+		if (!(chan->conn->feat_mask & L2CAP_FEAT_FCS))
+			break;
+
+		if (chan->fcs == L2CAP_FCS_NONE ||
+				test_bit(CONF_NO_FCS_RECV, &chan->conf_state)) {
+			chan->fcs = L2CAP_FCS_NONE;
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1, chan->fcs);
+		}
+
+		if (test_bit(FLAG_EXT_CTRL, &chan->flags))
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EWS, 2,
+								chan->tx_win);
+		break;
+
+	case L2CAP_MODE_STREAMING:
+		rfc.mode            = L2CAP_MODE_STREAMING;
+		rfc.txwin_size      = 0;
+		rfc.max_transmit    = 0;
+		rfc.retrans_timeout = 0;
+		rfc.monitor_timeout = 0;
+
+		size = min_t(u16, L2CAP_DEFAULT_MAX_PDU_SIZE, chan->conn->mtu -
+						L2CAP_EXT_HDR_SIZE -
+						L2CAP_SDULEN_SIZE -
+						L2CAP_FCS_SIZE);
+		rfc.max_pdu_size = cpu_to_le16(size);
+
+		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
+							(unsigned long) &rfc);
+
+		if (test_bit(FLAG_EFS_ENABLE, &chan->flags))
+			l2cap_add_opt_efs(&ptr, chan);
+
+		if (!(chan->conn->feat_mask & L2CAP_FEAT_FCS))
+			break;
+
+		if (chan->fcs == L2CAP_FCS_NONE ||
+				test_bit(CONF_NO_FCS_RECV, &chan->conf_state)) {
+			chan->fcs = L2CAP_FCS_NONE;
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1, chan->fcs);
+		}
+		break;
+	}
+
+	req->dcid  = cpu_to_le16(chan->dcid);
+	req->flags = cpu_to_le16(0);
+
+	return ptr - data;
+}
+
+static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
+{
+	struct l2cap_conf_rsp *rsp = data;
+	void *ptr = rsp->data;
+	void *req = chan->conf_req;
+	int len = chan->conf_len;
+	int type, hint, olen;
+	unsigned long val;
+	struct l2cap_conf_rfc rfc = { .mode = L2CAP_MODE_BASIC };
+	struct l2cap_conf_efs efs;
+	u8 remote_efs = 0;
+	u16 mtu = L2CAP_DEFAULT_MTU;
+	u16 result = L2CAP_CONF_SUCCESS;
+	u16 size;
+
+	BT_DBG("chan %p", chan);
+
+	while (len >= L2CAP_CONF_OPT_SIZE) {
+		len -= l2cap_get_conf_opt(&req, &type, &olen, &val);
+
+		hint  = type & L2CAP_CONF_HINT;
+		type &= L2CAP_CONF_MASK;
+
+		switch (type) {
+		case L2CAP_CONF_MTU:
+			mtu = val;
+			break;
+
+		case L2CAP_CONF_FLUSH_TO:
+			chan->flush_to = val;
+			break;
+
+		case L2CAP_CONF_QOS:
+			break;
+
+		case L2CAP_CONF_RFC:
+			if (olen == sizeof(rfc))
+				memcpy(&rfc, (void *) val, olen);
+			break;
+
+		case L2CAP_CONF_FCS:
+			if (val == L2CAP_FCS_NONE)
+				set_bit(CONF_NO_FCS_RECV, &chan->conf_state);
+			break;
+
+		case L2CAP_CONF_EFS:
+			remote_efs = 1;
+			if (olen == sizeof(efs))
+				memcpy(&efs, (void *) val, olen);
+			break;
+
+		case L2CAP_CONF_EWS:
+			if (!enable_hs)
+				return -ECONNREFUSED;
+
+			set_bit(FLAG_EXT_CTRL, &chan->flags);
+			set_bit(CONF_EWS_RECV, &chan->conf_state);
+			chan->tx_win_max = L2CAP_DEFAULT_EXT_WINDOW;
+			chan->remote_tx_win = val;
+			break;
+
+		default:
+			if (hint)
+				break;
+
+			result = L2CAP_CONF_UNKNOWN;
+			*((u8 *) ptr++) = type;
+			break;
+		}
+	}
+
+	if (chan->num_conf_rsp || chan->num_conf_req > 1)
+		goto done;
+
+	switch (chan->mode) {
+	case L2CAP_MODE_STREAMING:
+	case L2CAP_MODE_ERTM:
+		if (!test_bit(CONF_STATE2_DEVICE, &chan->conf_state)) {
+			chan->mode = l2cap_select_mode(rfc.mode,
+					chan->conn->feat_mask);
+			break;
+		}
+
+		if (remote_efs) {
+			if (__l2cap_efs_supported(chan))
+				set_bit(FLAG_EFS_ENABLE, &chan->flags);
+			else
+				return -ECONNREFUSED;
+		}
+
+		if (chan->mode != rfc.mode)
+			return -ECONNREFUSED;
+
+		break;
+	}
+
+done:
+	if (chan->mode != rfc.mode) {
+		result = L2CAP_CONF_UNACCEPT;
+		rfc.mode = chan->mode;
+
+		if (chan->num_conf_rsp == 1)
+			return -ECONNREFUSED;
+
+		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+					sizeof(rfc), (unsigned long) &rfc);
+	}
+
+	if (result == L2CAP_CONF_SUCCESS) {
+		/* Configure output options and let the other side know
+		 * which ones we don't like. */
+
+		if (mtu < L2CAP_DEFAULT_MIN_MTU)
+			result = L2CAP_CONF_UNACCEPT;
+		else {
+			chan->omtu = mtu;
+			set_bit(CONF_MTU_DONE, &chan->conf_state);
+		}
+		l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->omtu);
+
+		if (remote_efs) {
+			if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
+					efs.stype != L2CAP_SERV_NOTRAFIC &&
+					efs.stype != chan->local_stype) {
+
+				result = L2CAP_CONF_UNACCEPT;
+
+				if (chan->num_conf_req >= 1)
+					return -ECONNREFUSED;
+
+				l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
+							sizeof(efs),
+							(unsigned long) &efs);
+			} else {
+				/* Send PENDING Conf Rsp */
+				result = L2CAP_CONF_PENDING;
+				set_bit(CONF_LOC_CONF_PEND, &chan->conf_state);
+			}
+		}
+
+		switch (rfc.mode) {
+		case L2CAP_MODE_BASIC:
+			chan->fcs = L2CAP_FCS_NONE;
+			set_bit(CONF_MODE_DONE, &chan->conf_state);
+			break;
+
+		case L2CAP_MODE_ERTM:
+			if (!test_bit(CONF_EWS_RECV, &chan->conf_state))
+				chan->remote_tx_win = rfc.txwin_size;
+			else
+				rfc.txwin_size = L2CAP_DEFAULT_TX_WINDOW;
+
+			chan->remote_max_tx = rfc.max_transmit;
+
+			size = min_t(u16, le16_to_cpu(rfc.max_pdu_size),
+						chan->conn->mtu -
+						L2CAP_EXT_HDR_SIZE -
+						L2CAP_SDULEN_SIZE -
+						L2CAP_FCS_SIZE);
+			rfc.max_pdu_size = cpu_to_le16(size);
+			chan->remote_mps = size;
+
+			rfc.retrans_timeout =
+				le16_to_cpu(L2CAP_DEFAULT_RETRANS_TO);
+			rfc.monitor_timeout =
+				le16_to_cpu(L2CAP_DEFAULT_MONITOR_TO);
+
+			set_bit(CONF_MODE_DONE, &chan->conf_state);
+
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+					sizeof(rfc), (unsigned long) &rfc);
+
+			if (test_bit(FLAG_EFS_ENABLE, &chan->flags)) {
+				chan->remote_id = efs.id;
+				chan->remote_stype = efs.stype;
+				chan->remote_msdu = le16_to_cpu(efs.msdu);
+				chan->remote_flush_to =
+						le32_to_cpu(efs.flush_to);
+				chan->remote_acc_lat =
+						le32_to_cpu(efs.acc_lat);
+				chan->remote_sdu_itime =
+					le32_to_cpu(efs.sdu_itime);
+				l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
+					sizeof(efs), (unsigned long) &efs);
+			}
+			break;
+
+		case L2CAP_MODE_STREAMING:
+			size = min_t(u16, le16_to_cpu(rfc.max_pdu_size),
+						chan->conn->mtu -
+						L2CAP_EXT_HDR_SIZE -
+						L2CAP_SDULEN_SIZE -
+						L2CAP_FCS_SIZE);
+			rfc.max_pdu_size = cpu_to_le16(size);
+			chan->remote_mps = size;
+
+			set_bit(CONF_MODE_DONE, &chan->conf_state);
+
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+					sizeof(rfc), (unsigned long) &rfc);
+
+			break;
+
+		default:
+			result = L2CAP_CONF_UNACCEPT;
+
+			memset(&rfc, 0, sizeof(rfc));
+			rfc.mode = chan->mode;
+		}
+
+		if (result == L2CAP_CONF_SUCCESS)
+			set_bit(CONF_OUTPUT_DONE, &chan->conf_state);
+	}
+	rsp->scid   = cpu_to_le16(chan->dcid);
+	rsp->result = cpu_to_le16(result);
+	rsp->flags  = cpu_to_le16(0x0000);
+
+	return ptr - data;
+}
+
+static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len, void *data, u16 *result)
+{
+	struct l2cap_conf_req *req = data;
+	void *ptr = req->data;
+	int type, olen;
+	unsigned long val;
+	struct l2cap_conf_rfc rfc = { .mode = L2CAP_MODE_BASIC };
+	struct l2cap_conf_efs efs;
+
+	BT_DBG("chan %p, rsp %p, len %d, req %p", chan, rsp, len, data);
+
+	while (len >= L2CAP_CONF_OPT_SIZE) {
+		len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val);
+
+		switch (type) {
+		case L2CAP_CONF_MTU:
+			if (val < L2CAP_DEFAULT_MIN_MTU) {
+				*result = L2CAP_CONF_UNACCEPT;
+				chan->imtu = L2CAP_DEFAULT_MIN_MTU;
+			} else
+				chan->imtu = val;
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu);
+			break;
+
+		case L2CAP_CONF_FLUSH_TO:
+			chan->flush_to = val;
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO,
+							2, chan->flush_to);
+			break;
+
+		case L2CAP_CONF_RFC:
+			if (olen == sizeof(rfc))
+				memcpy(&rfc, (void *)val, olen);
+
+			if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
+							rfc.mode != chan->mode)
+				return -ECONNREFUSED;
+
+			chan->fcs = 0;
+
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+					sizeof(rfc), (unsigned long) &rfc);
+			break;
+
+		case L2CAP_CONF_EWS:
+			chan->tx_win = min_t(u16, val,
+						L2CAP_DEFAULT_EXT_WINDOW);
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EWS, 2,
+							chan->tx_win);
+			break;
+
+		case L2CAP_CONF_EFS:
+			if (olen == sizeof(efs))
+				memcpy(&efs, (void *)val, olen);
+
+			if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
+					efs.stype != L2CAP_SERV_NOTRAFIC &&
+					efs.stype != chan->local_stype)
+				return -ECONNREFUSED;
+
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
+					sizeof(efs), (unsigned long) &efs);
+			break;
+		}
+	}
+
+	if (chan->mode == L2CAP_MODE_BASIC && chan->mode != rfc.mode)
+		return -ECONNREFUSED;
+
+	chan->mode = rfc.mode;
+
+	if (*result == L2CAP_CONF_SUCCESS || *result == L2CAP_CONF_PENDING) {
+		switch (rfc.mode) {
+		case L2CAP_MODE_ERTM:
+			chan->retrans_timeout = le16_to_cpu(rfc.retrans_timeout);
+			chan->monitor_timeout = le16_to_cpu(rfc.monitor_timeout);
+			chan->mps    = le16_to_cpu(rfc.max_pdu_size);
+
+			if (test_bit(FLAG_EFS_ENABLE, &chan->flags)) {
+				chan->local_msdu = le16_to_cpu(efs.msdu);
+				chan->local_sdu_itime =
+						le32_to_cpu(efs.sdu_itime);
+				chan->local_acc_lat = le32_to_cpu(efs.acc_lat);
+				chan->local_flush_to =
+						le32_to_cpu(efs.flush_to);
+			}
+			break;
+
+		case L2CAP_MODE_STREAMING:
+			chan->mps    = le16_to_cpu(rfc.max_pdu_size);
+		}
+	}
+
+	req->dcid   = cpu_to_le16(chan->dcid);
+	req->flags  = cpu_to_le16(0x0000);
+
+	return ptr - data;
+}
+
+static int l2cap_build_conf_rsp(struct l2cap_chan *chan, void *data, u16 result, u16 flags)
+{
+	struct l2cap_conf_rsp *rsp = data;
+	void *ptr = rsp->data;
+
+	BT_DBG("chan %p", chan);
+
+	rsp->scid   = cpu_to_le16(chan->dcid);
+	rsp->result = cpu_to_le16(result);
+	rsp->flags  = cpu_to_le16(flags);
+
+	return ptr - data;
+}
+
+void __l2cap_connect_rsp_defer(struct l2cap_chan *chan)
+{
+	struct l2cap_conn_rsp rsp;
+	struct l2cap_conn *conn = chan->conn;
+	u8 buf[128];
+
+	rsp.scid   = cpu_to_le16(chan->dcid);
+	rsp.dcid   = cpu_to_le16(chan->scid);
+	rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS);
+	rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
+	l2cap_send_cmd(conn, chan->ident,
+				L2CAP_CONN_RSP, sizeof(rsp), &rsp);
+
+	if (test_and_set_bit(CONF_REQ_SENT, &chan->conf_state))
+		return;
+
+	l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
+			l2cap_build_conf_req(chan, buf), buf);
+	chan->num_conf_req++;
+}
+
+static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len)
+{
+	int type, olen;
+	unsigned long val;
+	struct l2cap_conf_rfc rfc;
+
+	BT_DBG("chan %p, rsp %p, len %d", chan, rsp, len);
+
+	if ((chan->mode != L2CAP_MODE_ERTM) && (chan->mode != L2CAP_MODE_STREAMING))
+		return;
+
+	while (len >= L2CAP_CONF_OPT_SIZE) {
+		len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val);
+
+		switch (type) {
+		case L2CAP_CONF_RFC:
+			if (olen == sizeof(rfc))
+				memcpy(&rfc, (void *)val, olen);
+			goto done;
+		}
+	}
+
+	/* Use sane default values in case a misbehaving remote device
+	 * did not send an RFC option.
+	 */
+	rfc.mode = chan->mode;
+	rfc.retrans_timeout = cpu_to_le16(L2CAP_DEFAULT_RETRANS_TO);
+	rfc.monitor_timeout = cpu_to_le16(L2CAP_DEFAULT_MONITOR_TO);
+	rfc.max_pdu_size = cpu_to_le16(chan->imtu);
+
+	BT_ERR("Expected RFC option was not found, using defaults");
+
+done:
+	switch (rfc.mode) {
+	case L2CAP_MODE_ERTM:
+		chan->retrans_timeout = le16_to_cpu(rfc.retrans_timeout);
+		chan->monitor_timeout = le16_to_cpu(rfc.monitor_timeout);
+		chan->mps    = le16_to_cpu(rfc.max_pdu_size);
+		break;
+	case L2CAP_MODE_STREAMING:
+		chan->mps    = le16_to_cpu(rfc.max_pdu_size);
+	}
+}
+
+static inline int l2cap_command_rej(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	struct l2cap_cmd_rej_unk *rej = (struct l2cap_cmd_rej_unk *) data;
+
+	if (rej->reason != L2CAP_REJ_NOT_UNDERSTOOD)
+		return 0;
+
+	if ((conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) &&
+					cmd->ident == conn->info_ident) {
+		cancel_delayed_work(&conn->info_timer);
+
+		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+		conn->info_ident = 0;
+
+		l2cap_conn_start(conn);
+	}
+
+	return 0;
+}
+
+static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	struct l2cap_conn_req *req = (struct l2cap_conn_req *) data;
+	struct l2cap_conn_rsp rsp;
+	struct l2cap_chan *chan = NULL, *pchan;
+	struct sock *parent, *sk = NULL;
+	int result, status = L2CAP_CS_NO_INFO;
+
+	u16 dcid = 0, scid = __le16_to_cpu(req->scid);
+	__le16 psm = req->psm;
+
+	BT_DBG("psm 0x%2.2x scid 0x%4.4x", psm, scid);
+
+	/* Check if we have socket listening on psm */
+	pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, conn->src);
+	if (!pchan) {
+		result = L2CAP_CR_BAD_PSM;
+		goto sendresp;
+	}
+
+	parent = pchan->sk;
+
+	mutex_lock(&conn->chan_lock);
+	lock_sock(parent);
+
+	/* Check if the ACL is secure enough (if not SDP) */
+	if (psm != cpu_to_le16(0x0001) &&
+				!hci_conn_check_link_mode(conn->hcon)) {
+		conn->disc_reason = HCI_ERROR_AUTH_FAILURE;
+		result = L2CAP_CR_SEC_BLOCK;
+		goto response;
+	}
+
+	result = L2CAP_CR_NO_MEM;
+
+	/* Check for backlog size */
+	if (sk_acceptq_is_full(parent)) {
+		BT_DBG("backlog full %d", parent->sk_ack_backlog);
+		goto response;
+	}
+
+	chan = pchan->ops->new_connection(pchan->data);
+	if (!chan)
+		goto response;
+
+	sk = chan->sk;
+
+	/* Check if we already have channel with that dcid */
+	if (__l2cap_get_chan_by_dcid(conn, scid)) {
+		sock_set_flag(sk, SOCK_ZAPPED);
+		chan->ops->close(chan->data);
+		goto response;
+	}
+
+	hci_conn_hold(conn->hcon);
+
+	bacpy(&bt_sk(sk)->src, conn->src);
+	bacpy(&bt_sk(sk)->dst, conn->dst);
+	chan->psm  = psm;
+	chan->dcid = scid;
+
+	bt_accept_enqueue(parent, sk);
+
+	__l2cap_chan_add(conn, chan);
+
+	dcid = chan->scid;
+
+	__set_chan_timer(chan, sk->sk_sndtimeo);
+
+	chan->ident = cmd->ident;
+
+	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) {
+		if (l2cap_chan_check_security(chan)) {
+			if (bt_sk(sk)->defer_setup) {
+				__l2cap_state_change(chan, BT_CONNECT2);
+				result = L2CAP_CR_PEND;
+				status = L2CAP_CS_AUTHOR_PEND;
+				parent->sk_data_ready(parent, 0);
+			} else {
+				__l2cap_state_change(chan, BT_CONFIG);
+				result = L2CAP_CR_SUCCESS;
+				status = L2CAP_CS_NO_INFO;
+			}
+		} else {
+			__l2cap_state_change(chan, BT_CONNECT2);
+			result = L2CAP_CR_PEND;
+			status = L2CAP_CS_AUTHEN_PEND;
+		}
+	} else {
+		__l2cap_state_change(chan, BT_CONNECT2);
+		result = L2CAP_CR_PEND;
+		status = L2CAP_CS_NO_INFO;
+	}
+
+response:
+	release_sock(parent);
+	mutex_unlock(&conn->chan_lock);
+
+sendresp:
+	rsp.scid   = cpu_to_le16(scid);
+	rsp.dcid   = cpu_to_le16(dcid);
+	rsp.result = cpu_to_le16(result);
+	rsp.status = cpu_to_le16(status);
+	l2cap_send_cmd(conn, cmd->ident, L2CAP_CONN_RSP, sizeof(rsp), &rsp);
+
+	if (result == L2CAP_CR_PEND && status == L2CAP_CS_NO_INFO) {
+		struct l2cap_info_req info;
+		info.type = cpu_to_le16(L2CAP_IT_FEAT_MASK);
+
+		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_SENT;
+		conn->info_ident = l2cap_get_ident(conn);
+
+		schedule_delayed_work(&conn->info_timer, L2CAP_INFO_TIMEOUT);
+
+		l2cap_send_cmd(conn, conn->info_ident,
+					L2CAP_INFO_REQ, sizeof(info), &info);
+	}
+
+	if (chan && !test_bit(CONF_REQ_SENT, &chan->conf_state) &&
+				result == L2CAP_CR_SUCCESS) {
+		u8 buf[128];
+		set_bit(CONF_REQ_SENT, &chan->conf_state);
+		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
+					l2cap_build_conf_req(chan, buf), buf);
+		chan->num_conf_req++;
+	}
+
+	return 0;
+}
+
+static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	struct l2cap_conn_rsp *rsp = (struct l2cap_conn_rsp *) data;
+	u16 scid, dcid, result, status;
+	struct l2cap_chan *chan;
+	u8 req[128];
+	int err;
+
+	scid   = __le16_to_cpu(rsp->scid);
+	dcid   = __le16_to_cpu(rsp->dcid);
+	result = __le16_to_cpu(rsp->result);
+	status = __le16_to_cpu(rsp->status);
+
+	BT_DBG("dcid 0x%4.4x scid 0x%4.4x result 0x%2.2x status 0x%2.2x",
+						dcid, scid, result, status);
+
+	mutex_lock(&conn->chan_lock);
+
+	if (scid) {
+		chan = __l2cap_get_chan_by_scid(conn, scid);
+		if (!chan) {
+			err = -EFAULT;
+			goto unlock;
+		}
+	} else {
+		chan = __l2cap_get_chan_by_ident(conn, cmd->ident);
+		if (!chan) {
+			err = -EFAULT;
+			goto unlock;
+		}
+	}
+
+	err = 0;
+
+	l2cap_chan_lock(chan);
+
+	switch (result) {
+	case L2CAP_CR_SUCCESS:
+		l2cap_state_change(chan, BT_CONFIG);
+		chan->ident = 0;
+		chan->dcid = dcid;
+		clear_bit(CONF_CONNECT_PEND, &chan->conf_state);
+
+		if (test_and_set_bit(CONF_REQ_SENT, &chan->conf_state))
+			break;
+
+		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
+					l2cap_build_conf_req(chan, req), req);
+		chan->num_conf_req++;
+		break;
+
+	case L2CAP_CR_PEND:
+		set_bit(CONF_CONNECT_PEND, &chan->conf_state);
+		break;
+
+	default:
+		l2cap_chan_del(chan, ECONNREFUSED);
+		break;
+	}
+
+	l2cap_chan_unlock(chan);
+
+unlock:
+	mutex_unlock(&conn->chan_lock);
+
+	return err;
+}
+
+static inline void set_default_fcs(struct l2cap_chan *chan)
+{
+	/* FCS is enabled only in ERTM or streaming mode, if one or both
+	 * sides request it.
+	 */
+	if (chan->mode != L2CAP_MODE_ERTM && chan->mode != L2CAP_MODE_STREAMING)
+		chan->fcs = L2CAP_FCS_NONE;
+	else if (!test_bit(CONF_NO_FCS_RECV, &chan->conf_state))
+		chan->fcs = L2CAP_FCS_CRC16;
+}
+
+static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u16 cmd_len, u8 *data)
+{
+	struct l2cap_conf_req *req = (struct l2cap_conf_req *) data;
+	u16 dcid, flags;
+	u8 rsp[64];
+	struct l2cap_chan *chan;
+	int len;
+
+	dcid  = __le16_to_cpu(req->dcid);
+	flags = __le16_to_cpu(req->flags);
+
+	BT_DBG("dcid 0x%4.4x flags 0x%2.2x", dcid, flags);
+
+	chan = l2cap_get_chan_by_scid(conn, dcid);
+	if (!chan)
+		return -ENOENT;
+
+	if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2) {
+		struct l2cap_cmd_rej_cid rej;
+
+		rej.reason = cpu_to_le16(L2CAP_REJ_INVALID_CID);
+		rej.scid = cpu_to_le16(chan->scid);
+		rej.dcid = cpu_to_le16(chan->dcid);
+
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ,
+				sizeof(rej), &rej);
+		goto unlock;
+	}
+
+	/* Reject if config buffer is too small. */
+	len = cmd_len - sizeof(*req);
+	if (len < 0 || chan->conf_len + len > sizeof(chan->conf_req)) {
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
+				l2cap_build_conf_rsp(chan, rsp,
+					L2CAP_CONF_REJECT, flags), rsp);
+		goto unlock;
+	}
+
+	/* Store config. */
+	memcpy(chan->conf_req + chan->conf_len, req->data, len);
+	chan->conf_len += len;
+
+	if (flags & 0x0001) {
+		/* Incomplete config. Send empty response. */
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
+				l2cap_build_conf_rsp(chan, rsp,
+					L2CAP_CONF_SUCCESS, 0x0001), rsp);
+		goto unlock;
+	}
+
+	/* Complete config. */
+	len = l2cap_parse_conf_req(chan, rsp);
+	if (len < 0) {
+		l2cap_send_disconn_req(conn, chan, ECONNRESET);
+		goto unlock;
+	}
+
+	l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP, len, rsp);
+	chan->num_conf_rsp++;
+
+	/* Reset config buffer. */
+	chan->conf_len = 0;
+
+	if (!test_bit(CONF_OUTPUT_DONE, &chan->conf_state))
+		goto unlock;
+
+	if (test_bit(CONF_INPUT_DONE, &chan->conf_state)) {
+		set_default_fcs(chan);
+
+		l2cap_state_change(chan, BT_CONNECTED);
+
+		chan->next_tx_seq = 0;
+		chan->expected_tx_seq = 0;
+		skb_queue_head_init(&chan->tx_q);
+		if (chan->mode == L2CAP_MODE_ERTM)
+			l2cap_ertm_init(chan);
+
+		l2cap_chan_ready(chan);
+		goto unlock;
+	}
+
+	if (!test_and_set_bit(CONF_REQ_SENT, &chan->conf_state)) {
+		u8 buf[64];
+		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
+					l2cap_build_conf_req(chan, buf), buf);
+		chan->num_conf_req++;
+	}
+
+	/* Got Conf Rsp PENDING from remote side and asume we sent
+	   Conf Rsp PENDING in the code above */
+	if (test_bit(CONF_REM_CONF_PEND, &chan->conf_state) &&
+			test_bit(CONF_LOC_CONF_PEND, &chan->conf_state)) {
+
+		/* check compatibility */
+
+		clear_bit(CONF_LOC_CONF_PEND, &chan->conf_state);
+		set_bit(CONF_OUTPUT_DONE, &chan->conf_state);
+
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
+					l2cap_build_conf_rsp(chan, rsp,
+					L2CAP_CONF_SUCCESS, 0x0000), rsp);
+	}
+
+unlock:
+	l2cap_chan_unlock(chan);
+	return 0;
+}
+
+static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	struct l2cap_conf_rsp *rsp = (struct l2cap_conf_rsp *)data;
+	u16 scid, flags, result;
+	struct l2cap_chan *chan;
+	int len = cmd->len - sizeof(*rsp);
+
+	scid   = __le16_to_cpu(rsp->scid);
+	flags  = __le16_to_cpu(rsp->flags);
+	result = __le16_to_cpu(rsp->result);
+
+	BT_DBG("scid 0x%4.4x flags 0x%2.2x result 0x%2.2x",
+			scid, flags, result);
+
+	chan = l2cap_get_chan_by_scid(conn, scid);
+	if (!chan)
+		return 0;
+
+	switch (result) {
+	case L2CAP_CONF_SUCCESS:
+		l2cap_conf_rfc_get(chan, rsp->data, len);
+		clear_bit(CONF_REM_CONF_PEND, &chan->conf_state);
+		break;
+
+	case L2CAP_CONF_PENDING:
+		set_bit(CONF_REM_CONF_PEND, &chan->conf_state);
+
+		if (test_bit(CONF_LOC_CONF_PEND, &chan->conf_state)) {
+			char buf[64];
+
+			len = l2cap_parse_conf_rsp(chan, rsp->data, len,
+								buf, &result);
+			if (len < 0) {
+				l2cap_send_disconn_req(conn, chan, ECONNRESET);
+				goto done;
+			}
+
+			/* check compatibility */
+
+			clear_bit(CONF_LOC_CONF_PEND, &chan->conf_state);
+			set_bit(CONF_OUTPUT_DONE, &chan->conf_state);
+
+			l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
+						l2cap_build_conf_rsp(chan, buf,
+						L2CAP_CONF_SUCCESS, 0x0000), buf);
+		}
+		goto done;
+
+	case L2CAP_CONF_UNACCEPT:
+		if (chan->num_conf_rsp <= L2CAP_CONF_MAX_CONF_RSP) {
+			char req[64];
+
+			if (len > sizeof(req) - sizeof(struct l2cap_conf_req)) {
+				l2cap_send_disconn_req(conn, chan, ECONNRESET);
+				goto done;
+			}
+
+			/* throw out any old stored conf requests */
+			result = L2CAP_CONF_SUCCESS;
+			len = l2cap_parse_conf_rsp(chan, rsp->data, len,
+								req, &result);
+			if (len < 0) {
+				l2cap_send_disconn_req(conn, chan, ECONNRESET);
+				goto done;
+			}
+
+			l2cap_send_cmd(conn, l2cap_get_ident(conn),
+						L2CAP_CONF_REQ, len, req);
+			chan->num_conf_req++;
+			if (result != L2CAP_CONF_SUCCESS)
+				goto done;
+			break;
+		}
+
+	default:
+		l2cap_chan_set_err(chan, ECONNRESET);
+
+		__set_chan_timer(chan, L2CAP_DISC_REJ_TIMEOUT);
+		l2cap_send_disconn_req(conn, chan, ECONNRESET);
+		goto done;
+	}
+
+	if (flags & 0x01)
+		goto done;
+
+	set_bit(CONF_INPUT_DONE, &chan->conf_state);
+
+	if (test_bit(CONF_OUTPUT_DONE, &chan->conf_state)) {
+		set_default_fcs(chan);
+
+		l2cap_state_change(chan, BT_CONNECTED);
+		chan->next_tx_seq = 0;
+		chan->expected_tx_seq = 0;
+		skb_queue_head_init(&chan->tx_q);
+		if (chan->mode ==  L2CAP_MODE_ERTM)
+			l2cap_ertm_init(chan);
+
+		l2cap_chan_ready(chan);
+	}
+
+done:
+	l2cap_chan_unlock(chan);
+	return 0;
+}
+
+static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	struct l2cap_disconn_req *req = (struct l2cap_disconn_req *) data;
+	struct l2cap_disconn_rsp rsp;
+	u16 dcid, scid;
+	struct l2cap_chan *chan;
+	struct sock *sk;
+
+	scid = __le16_to_cpu(req->scid);
+	dcid = __le16_to_cpu(req->dcid);
+
+	BT_DBG("scid 0x%4.4x dcid 0x%4.4x", scid, dcid);
+
+	mutex_lock(&conn->chan_lock);
+
+	chan = __l2cap_get_chan_by_scid(conn, dcid);
+	if (!chan) {
+		mutex_unlock(&conn->chan_lock);
+		return 0;
+	}
+
+	l2cap_chan_lock(chan);
+
+	sk = chan->sk;
+
+	rsp.dcid = cpu_to_le16(chan->scid);
+	rsp.scid = cpu_to_le16(chan->dcid);
+	l2cap_send_cmd(conn, cmd->ident, L2CAP_DISCONN_RSP, sizeof(rsp), &rsp);
+
+	lock_sock(sk);
+	sk->sk_shutdown = SHUTDOWN_MASK;
+	release_sock(sk);
+
+	l2cap_chan_del(chan, ECONNRESET);
+
+	l2cap_chan_unlock(chan);
+
+	chan->ops->close(chan->data);
+
+	mutex_unlock(&conn->chan_lock);
+
+	return 0;
+}
+
+static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	struct l2cap_disconn_rsp *rsp = (struct l2cap_disconn_rsp *) data;
+	u16 dcid, scid;
+	struct l2cap_chan *chan;
+
+	scid = __le16_to_cpu(rsp->scid);
+	dcid = __le16_to_cpu(rsp->dcid);
+
+	BT_DBG("dcid 0x%4.4x scid 0x%4.4x", dcid, scid);
+
+	mutex_lock(&conn->chan_lock);
+
+	chan = __l2cap_get_chan_by_scid(conn, scid);
+	if (!chan) {
+		mutex_unlock(&conn->chan_lock);
+		return 0;
+	}
+
+	l2cap_chan_lock(chan);
+
+	l2cap_chan_del(chan, 0);
+
+	l2cap_chan_unlock(chan);
+
+	chan->ops->close(chan->data);
+
+	mutex_unlock(&conn->chan_lock);
+
+	return 0;
+}
+
+static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	struct l2cap_info_req *req = (struct l2cap_info_req *) data;
+	u16 type;
+
+	type = __le16_to_cpu(req->type);
+
+	BT_DBG("type 0x%4.4x", type);
+
+	if (type == L2CAP_IT_FEAT_MASK) {
+		u8 buf[8];
+		u32 feat_mask = l2cap_feat_mask;
+		struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;
+		rsp->type   = cpu_to_le16(L2CAP_IT_FEAT_MASK);
+		rsp->result = cpu_to_le16(L2CAP_IR_SUCCESS);
+		if (!disable_ertm)
+			feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING
+							 | L2CAP_FEAT_FCS;
+		if (enable_hs)
+			feat_mask |= L2CAP_FEAT_EXT_FLOW
+						| L2CAP_FEAT_EXT_WINDOW;
+
+		put_unaligned_le32(feat_mask, rsp->data);
+		l2cap_send_cmd(conn, cmd->ident,
+					L2CAP_INFO_RSP, sizeof(buf), buf);
+	} else if (type == L2CAP_IT_FIXED_CHAN) {
+		u8 buf[12];
+		struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;
+
+		if (enable_hs)
+			l2cap_fixed_chan[0] |= L2CAP_FC_A2MP;
+		else
+			l2cap_fixed_chan[0] &= ~L2CAP_FC_A2MP;
+
+		rsp->type   = cpu_to_le16(L2CAP_IT_FIXED_CHAN);
+		rsp->result = cpu_to_le16(L2CAP_IR_SUCCESS);
+		memcpy(rsp->data, l2cap_fixed_chan, sizeof(l2cap_fixed_chan));
+		l2cap_send_cmd(conn, cmd->ident,
+					L2CAP_INFO_RSP, sizeof(buf), buf);
+	} else {
+		struct l2cap_info_rsp rsp;
+		rsp.type   = cpu_to_le16(type);
+		rsp.result = cpu_to_le16(L2CAP_IR_NOTSUPP);
+		l2cap_send_cmd(conn, cmd->ident,
+					L2CAP_INFO_RSP, sizeof(rsp), &rsp);
+	}
+
+	return 0;
+}
+
+static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) data;
+	u16 type, result;
+
+	type   = __le16_to_cpu(rsp->type);
+	result = __le16_to_cpu(rsp->result);
+
+	BT_DBG("type 0x%4.4x result 0x%2.2x", type, result);
+
+	/* L2CAP Info req/rsp are unbound to channels, add extra checks */
+	if (cmd->ident != conn->info_ident ||
+			conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE)
+		return 0;
+
+	cancel_delayed_work(&conn->info_timer);
+
+	if (result != L2CAP_IR_SUCCESS) {
+		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+		conn->info_ident = 0;
+
+		l2cap_conn_start(conn);
+
+		return 0;
+	}
+
+	switch (type) {
+	case L2CAP_IT_FEAT_MASK:
+		conn->feat_mask = get_unaligned_le32(rsp->data);
+
+		if (conn->feat_mask & L2CAP_FEAT_FIXED_CHAN) {
+			struct l2cap_info_req req;
+			req.type = cpu_to_le16(L2CAP_IT_FIXED_CHAN);
+
+			conn->info_ident = l2cap_get_ident(conn);
+
+			l2cap_send_cmd(conn, conn->info_ident,
+					L2CAP_INFO_REQ, sizeof(req), &req);
+		} else {
+			conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+			conn->info_ident = 0;
+
+			l2cap_conn_start(conn);
+		}
+		break;
+
+	case L2CAP_IT_FIXED_CHAN:
+		conn->fixed_chan_mask = rsp->data[0];
+		conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+		conn->info_ident = 0;
+
+		l2cap_conn_start(conn);
+		break;
+	}
+
+	return 0;
+}
+
+static inline int l2cap_create_channel_req(struct l2cap_conn *conn,
+					struct l2cap_cmd_hdr *cmd, u16 cmd_len,
+					void *data)
+{
+	struct l2cap_create_chan_req *req = data;
+	struct l2cap_create_chan_rsp rsp;
+	u16 psm, scid;
+
+	if (cmd_len != sizeof(*req))
+		return -EPROTO;
+
+	if (!enable_hs)
+		return -EINVAL;
+
+	psm = le16_to_cpu(req->psm);
+	scid = le16_to_cpu(req->scid);
+
+	BT_DBG("psm %d, scid %d, amp_id %d", psm, scid, req->amp_id);
+
+	/* Placeholder: Always reject */
+	rsp.dcid = 0;
+	rsp.scid = cpu_to_le16(scid);
+	rsp.result = L2CAP_CR_NO_MEM;
+	rsp.status = L2CAP_CS_NO_INFO;
+
+	l2cap_send_cmd(conn, cmd->ident, L2CAP_CREATE_CHAN_RSP,
+		       sizeof(rsp), &rsp);
+
+	return 0;
+}
+
+static inline int l2cap_create_channel_rsp(struct l2cap_conn *conn,
+					struct l2cap_cmd_hdr *cmd, void *data)
+{
+	BT_DBG("conn %p", conn);
+
+	return l2cap_connect_rsp(conn, cmd, data);
+}
+
+static void l2cap_send_move_chan_rsp(struct l2cap_conn *conn, u8 ident,
+							u16 icid, u16 result)
+{
+	struct l2cap_move_chan_rsp rsp;
+
+	BT_DBG("icid %d, result %d", icid, result);
+
+	rsp.icid = cpu_to_le16(icid);
+	rsp.result = cpu_to_le16(result);
+
+	l2cap_send_cmd(conn, ident, L2CAP_MOVE_CHAN_RSP, sizeof(rsp), &rsp);
+}
+
+static void l2cap_send_move_chan_cfm(struct l2cap_conn *conn,
+				struct l2cap_chan *chan, u16 icid, u16 result)
+{
+	struct l2cap_move_chan_cfm cfm;
+	u8 ident;
+
+	BT_DBG("icid %d, result %d", icid, result);
+
+	ident = l2cap_get_ident(conn);
+	if (chan)
+		chan->ident = ident;
+
+	cfm.icid = cpu_to_le16(icid);
+	cfm.result = cpu_to_le16(result);
+
+	l2cap_send_cmd(conn, ident, L2CAP_MOVE_CHAN_CFM, sizeof(cfm), &cfm);
+}
+
+static void l2cap_send_move_chan_cfm_rsp(struct l2cap_conn *conn, u8 ident,
+								u16 icid)
+{
+	struct l2cap_move_chan_cfm_rsp rsp;
+
+	BT_DBG("icid %d", icid);
+
+	rsp.icid = cpu_to_le16(icid);
+	l2cap_send_cmd(conn, ident, L2CAP_MOVE_CHAN_CFM_RSP, sizeof(rsp), &rsp);
+}
+
+static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
+			struct l2cap_cmd_hdr *cmd, u16 cmd_len, void *data)
+{
+	struct l2cap_move_chan_req *req = data;
+	u16 icid = 0;
+	u16 result = L2CAP_MR_NOT_ALLOWED;
+
+	if (cmd_len != sizeof(*req))
+		return -EPROTO;
+
+	icid = le16_to_cpu(req->icid);
+
+	BT_DBG("icid %d, dest_amp_id %d", icid, req->dest_amp_id);
+
+	if (!enable_hs)
+		return -EINVAL;
+
+	/* Placeholder: Always refuse */
+	l2cap_send_move_chan_rsp(conn, cmd->ident, icid, result);
+
+	return 0;
+}
+
+static inline int l2cap_move_channel_rsp(struct l2cap_conn *conn,
+			struct l2cap_cmd_hdr *cmd, u16 cmd_len, void *data)
+{
+	struct l2cap_move_chan_rsp *rsp = data;
+	u16 icid, result;
+
+	if (cmd_len != sizeof(*rsp))
+		return -EPROTO;
+
+	icid = le16_to_cpu(rsp->icid);
+	result = le16_to_cpu(rsp->result);
+
+	BT_DBG("icid %d, result %d", icid, result);
+
+	/* Placeholder: Always unconfirmed */
+	l2cap_send_move_chan_cfm(conn, NULL, icid, L2CAP_MC_UNCONFIRMED);
+
+	return 0;
+}
+
+static inline int l2cap_move_channel_confirm(struct l2cap_conn *conn,
+			struct l2cap_cmd_hdr *cmd, u16 cmd_len, void *data)
+{
+	struct l2cap_move_chan_cfm *cfm = data;
+	u16 icid, result;
+
+	if (cmd_len != sizeof(*cfm))
+		return -EPROTO;
+
+	icid = le16_to_cpu(cfm->icid);
+	result = le16_to_cpu(cfm->result);
+
+	BT_DBG("icid %d, result %d", icid, result);
+
+	l2cap_send_move_chan_cfm_rsp(conn, cmd->ident, icid);
+
+	return 0;
+}
+
+static inline int l2cap_move_channel_confirm_rsp(struct l2cap_conn *conn,
+			struct l2cap_cmd_hdr *cmd, u16 cmd_len, void *data)
+{
+	struct l2cap_move_chan_cfm_rsp *rsp = data;
+	u16 icid;
+
+	if (cmd_len != sizeof(*rsp))
+		return -EPROTO;
+
+	icid = le16_to_cpu(rsp->icid);
+
+	BT_DBG("icid %d", icid);
+
+	return 0;
+}
+
+static inline int l2cap_check_conn_param(u16 min, u16 max, u16 latency,
+							u16 to_multiplier)
+{
+	u16 max_latency;
+
+	if (min > max || min < 6 || max > 3200)
+		return -EINVAL;
+
+	if (to_multiplier < 10 || to_multiplier > 3200)
+		return -EINVAL;
+
+	if (max >= to_multiplier * 8)
+		return -EINVAL;
+
+	max_latency = (to_multiplier * 8 / max) - 1;
+	if (latency > 499 || latency > max_latency)
+		return -EINVAL;
+
+	return 0;
+}
+
+static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
+					struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	struct hci_conn *hcon = conn->hcon;
+	struct l2cap_conn_param_update_req *req;
+	struct l2cap_conn_param_update_rsp rsp;
+	u16 min, max, latency, to_multiplier, cmd_len;
+	int err;
+
+	if (!(hcon->link_mode & HCI_LM_MASTER))
+		return -EINVAL;
+
+	cmd_len = __le16_to_cpu(cmd->len);
+	if (cmd_len != sizeof(struct l2cap_conn_param_update_req))
+		return -EPROTO;
+
+	req = (struct l2cap_conn_param_update_req *) data;
+	min		= __le16_to_cpu(req->min);
+	max		= __le16_to_cpu(req->max);
+	latency		= __le16_to_cpu(req->latency);
+	to_multiplier	= __le16_to_cpu(req->to_multiplier);
+
+	BT_DBG("min 0x%4.4x max 0x%4.4x latency: 0x%4.4x Timeout: 0x%4.4x",
+						min, max, latency, to_multiplier);
+
+	memset(&rsp, 0, sizeof(rsp));
+
+	err = l2cap_check_conn_param(min, max, latency, to_multiplier);
+	if (err)
+		rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED);
+	else
+		rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_ACCEPTED);
+
+	l2cap_send_cmd(conn, cmd->ident, L2CAP_CONN_PARAM_UPDATE_RSP,
+							sizeof(rsp), &rsp);
+
+	if (!err)
+		hci_le_conn_update(hcon, min, max, latency, to_multiplier);
+
+	return 0;
+}
+
+static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
+			struct l2cap_cmd_hdr *cmd, u16 cmd_len, u8 *data)
+{
+	int err = 0;
+
+	switch (cmd->code) {
+	case L2CAP_COMMAND_REJ:
+		l2cap_command_rej(conn, cmd, data);
+		break;
+
+	case L2CAP_CONN_REQ:
+		err = l2cap_connect_req(conn, cmd, data);
+		break;
+
+	case L2CAP_CONN_RSP:
+		err = l2cap_connect_rsp(conn, cmd, data);
+		break;
+
+	case L2CAP_CONF_REQ:
+		err = l2cap_config_req(conn, cmd, cmd_len, data);
+		break;
+
+	case L2CAP_CONF_RSP:
+		err = l2cap_config_rsp(conn, cmd, data);
+		break;
+
+	case L2CAP_DISCONN_REQ:
+		err = l2cap_disconnect_req(conn, cmd, data);
+		break;
+
+	case L2CAP_DISCONN_RSP:
+		err = l2cap_disconnect_rsp(conn, cmd, data);
+		break;
+
+	case L2CAP_ECHO_REQ:
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_ECHO_RSP, cmd_len, data);
+		break;
+
+	case L2CAP_ECHO_RSP:
+		break;
+
+	case L2CAP_INFO_REQ:
+		err = l2cap_information_req(conn, cmd, data);
+		break;
+
+	case L2CAP_INFO_RSP:
+		err = l2cap_information_rsp(conn, cmd, data);
+		break;
+
+	case L2CAP_CREATE_CHAN_REQ:
+		err = l2cap_create_channel_req(conn, cmd, cmd_len, data);
+		break;
+
+	case L2CAP_CREATE_CHAN_RSP:
+		err = l2cap_create_channel_rsp(conn, cmd, data);
+		break;
+
+	case L2CAP_MOVE_CHAN_REQ:
+		err = l2cap_move_channel_req(conn, cmd, cmd_len, data);
+		break;
+
+	case L2CAP_MOVE_CHAN_RSP:
+		err = l2cap_move_channel_rsp(conn, cmd, cmd_len, data);
+		break;
+
+	case L2CAP_MOVE_CHAN_CFM:
+		err = l2cap_move_channel_confirm(conn, cmd, cmd_len, data);
+		break;
+
+	case L2CAP_MOVE_CHAN_CFM_RSP:
+		err = l2cap_move_channel_confirm_rsp(conn, cmd, cmd_len, data);
+		break;
+
+	default:
+		BT_ERR("Unknown BR/EDR signaling command 0x%2.2x", cmd->code);
+		err = -EINVAL;
+		break;
+	}
+
+	return err;
+}
+
+static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn,
+					struct l2cap_cmd_hdr *cmd, u8 *data)
+{
+	switch (cmd->code) {
+	case L2CAP_COMMAND_REJ:
+		return 0;
+
+	case L2CAP_CONN_PARAM_UPDATE_REQ:
+		return l2cap_conn_param_update_req(conn, cmd, data);
+
+	case L2CAP_CONN_PARAM_UPDATE_RSP:
+		return 0;
+
+	default:
+		BT_ERR("Unknown LE signaling command 0x%2.2x", cmd->code);
+		return -EINVAL;
+	}
+}
+
+static inline void l2cap_sig_channel(struct l2cap_conn *conn,
+							struct sk_buff *skb)
+{
+	u8 *data = skb->data;
+	int len = skb->len;
+	struct l2cap_cmd_hdr cmd;
+	int err;
+
+	l2cap_raw_recv(conn, skb);
+
+	while (len >= L2CAP_CMD_HDR_SIZE) {
+		u16 cmd_len;
+		memcpy(&cmd, data, L2CAP_CMD_HDR_SIZE);
+		data += L2CAP_CMD_HDR_SIZE;
+		len  -= L2CAP_CMD_HDR_SIZE;
+
+		cmd_len = le16_to_cpu(cmd.len);
+
+		BT_DBG("code 0x%2.2x len %d id 0x%2.2x", cmd.code, cmd_len, cmd.ident);
+
+		if (cmd_len > len || !cmd.ident) {
+			BT_DBG("corrupted command");
+			break;
+		}
+
+		if (conn->hcon->type == LE_LINK)
+			err = l2cap_le_sig_cmd(conn, &cmd, data);
+		else
+			err = l2cap_bredr_sig_cmd(conn, &cmd, cmd_len, data);
+
+		if (err) {
+			struct l2cap_cmd_rej_unk rej;
+
+			BT_ERR("Wrong link type (%d)", err);
+
+			/* FIXME: Map err to a valid reason */
+			rej.reason = cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
+			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ, sizeof(rej), &rej);
+		}
+
+		data += cmd_len;
+		len  -= cmd_len;
+	}
+
+	kfree_skb(skb);
+}
+
+static int l2cap_check_fcs(struct l2cap_chan *chan,  struct sk_buff *skb)
+{
+	u16 our_fcs, rcv_fcs;
+	int hdr_size;
+
+	if (test_bit(FLAG_EXT_CTRL, &chan->flags))
+		hdr_size = L2CAP_EXT_HDR_SIZE;
+	else
+		hdr_size = L2CAP_ENH_HDR_SIZE;
+
+	if (chan->fcs == L2CAP_FCS_CRC16) {
+		skb_trim(skb, skb->len - L2CAP_FCS_SIZE);
+		rcv_fcs = get_unaligned_le16(skb->data + skb->len);
+		our_fcs = crc16(0, skb->data - hdr_size, skb->len + hdr_size);
+
+		if (our_fcs != rcv_fcs)
+			return -EBADMSG;
+	}
+	return 0;
+}
+
+static inline void l2cap_send_i_or_rr_or_rnr(struct l2cap_chan *chan)
+{
+	u32 control = 0;
+
+	chan->frames_sent = 0;
+
+	control |= __set_reqseq(chan, chan->buffer_seq);
+
+	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+		control |= __set_ctrl_super(chan, L2CAP_SUPER_RNR);
+		l2cap_send_sframe(chan, control);
+		set_bit(CONN_RNR_SENT, &chan->conn_state);
+	}
+
+	if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state))
+		l2cap_retransmit_frames(chan);
+
+	l2cap_ertm_send(chan);
+
+	if (!test_bit(CONN_LOCAL_BUSY, &chan->conn_state) &&
+			chan->frames_sent == 0) {
+		control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
+		l2cap_send_sframe(chan, control);
+	}
+}
+
+static int l2cap_add_to_srej_queue(struct l2cap_chan *chan, struct sk_buff *skb, u16 tx_seq, u8 sar)
+{
+	struct sk_buff *next_skb;
+	int tx_seq_offset, next_tx_seq_offset;
+
+	bt_cb(skb)->tx_seq = tx_seq;
+	bt_cb(skb)->sar = sar;
+
+	next_skb = skb_peek(&chan->srej_q);
+
+	tx_seq_offset = __seq_offset(chan, tx_seq, chan->buffer_seq);
+
+	while (next_skb) {
+		if (bt_cb(next_skb)->tx_seq == tx_seq)
+			return -EINVAL;
+
+		next_tx_seq_offset = __seq_offset(chan,
+				bt_cb(next_skb)->tx_seq, chan->buffer_seq);
+
+		if (next_tx_seq_offset > tx_seq_offset) {
+			__skb_queue_before(&chan->srej_q, next_skb, skb);
+			return 0;
+		}
+
+		if (skb_queue_is_last(&chan->srej_q, next_skb))
+			next_skb = NULL;
+		else
+			next_skb = skb_queue_next(&chan->srej_q, next_skb);
+	}
+
+	__skb_queue_tail(&chan->srej_q, skb);
+
+	return 0;
+}
+
+static void append_skb_frag(struct sk_buff *skb,
+			struct sk_buff *new_frag, struct sk_buff **last_frag)
+{
+	/* skb->len reflects data in skb as well as all fragments
+	 * skb->data_len reflects only data in fragments
+	 */
+	if (!skb_has_frag_list(skb))
+		skb_shinfo(skb)->frag_list = new_frag;
+
+	new_frag->next = NULL;
+
+	(*last_frag)->next = new_frag;
+	*last_frag = new_frag;
+
+	skb->len += new_frag->len;
+	skb->data_len += new_frag->len;
+	skb->truesize += new_frag->truesize;
+}
+
+static int l2cap_reassemble_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u32 control)
+{
+	int err = -EINVAL;
+
+	switch (__get_ctrl_sar(chan, control)) {
+	case L2CAP_SAR_UNSEGMENTED:
+		if (chan->sdu)
+			break;
+
+		err = chan->ops->recv(chan->data, skb);
+		break;
+
+	case L2CAP_SAR_START:
+		if (chan->sdu)
+			break;
+
+		chan->sdu_len = get_unaligned_le16(skb->data);
+		skb_pull(skb, L2CAP_SDULEN_SIZE);
+
+		if (chan->sdu_len > chan->imtu) {
+			err = -EMSGSIZE;
+			break;
+		}
+
+		if (skb->len >= chan->sdu_len)
+			break;
+
+		chan->sdu = skb;
+		chan->sdu_last_frag = skb;
+
+		skb = NULL;
+		err = 0;
+		break;
+
+	case L2CAP_SAR_CONTINUE:
+		if (!chan->sdu)
+			break;
+
+		append_skb_frag(chan->sdu, skb,
+				&chan->sdu_last_frag);
+		skb = NULL;
+
+		if (chan->sdu->len >= chan->sdu_len)
+			break;
+
+		err = 0;
+		break;
+
+	case L2CAP_SAR_END:
+		if (!chan->sdu)
+			break;
+
+		append_skb_frag(chan->sdu, skb,
+				&chan->sdu_last_frag);
+		skb = NULL;
+
+		if (chan->sdu->len != chan->sdu_len)
+			break;
+
+		err = chan->ops->recv(chan->data, chan->sdu);
+
+		if (!err) {
+			/* Reassembly complete */
+			chan->sdu = NULL;
+			chan->sdu_last_frag = NULL;
+			chan->sdu_len = 0;
+		}
+		break;
+	}
+
+	if (err) {
+		kfree_skb(skb);
+		kfree_skb(chan->sdu);
+		chan->sdu = NULL;
+		chan->sdu_last_frag = NULL;
+		chan->sdu_len = 0;
+	}
+
+	return err;
+}
+
+static void l2cap_ertm_enter_local_busy(struct l2cap_chan *chan)
+{
+	BT_DBG("chan %p, Enter local busy", chan);
+
+	set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
+
+	__set_ack_timer(chan);
+}
+
+static void l2cap_ertm_exit_local_busy(struct l2cap_chan *chan)
+{
+	u32 control;
+
+	if (!test_bit(CONN_RNR_SENT, &chan->conn_state))
+		goto done;
+
+	control = __set_reqseq(chan, chan->buffer_seq);
+	control |= __set_ctrl_poll(chan);
+	control |= __set_ctrl_super(chan, L2CAP_SUPER_RR);
+	l2cap_send_sframe(chan, control);
+	chan->retry_count = 1;
+
+	__clear_retrans_timer(chan);
+	__set_monitor_timer(chan);
+
+	set_bit(CONN_WAIT_F, &chan->conn_state);
+
+done:
+	clear_bit(CONN_LOCAL_BUSY, &chan->conn_state);
+	clear_bit(CONN_RNR_SENT, &chan->conn_state);
+
+	BT_DBG("chan %p, Exit local busy", chan);
+}
+
+void l2cap_chan_busy(struct l2cap_chan *chan, int busy)
+{
+	if (chan->mode == L2CAP_MODE_ERTM) {
+		if (busy)
+			l2cap_ertm_enter_local_busy(chan);
+		else
+			l2cap_ertm_exit_local_busy(chan);
+	}
+}
+
+static void l2cap_check_srej_gap(struct l2cap_chan *chan, u16 tx_seq)
+{
+	struct sk_buff *skb;
+	u32 control;
+
+	while ((skb = skb_peek(&chan->srej_q)) &&
+			!test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+		int err;
+
+		if (bt_cb(skb)->tx_seq != tx_seq)
+			break;
+
+		skb = skb_dequeue(&chan->srej_q);
+		control = __set_ctrl_sar(chan, bt_cb(skb)->sar);
+		err = l2cap_reassemble_sdu(chan, skb, control);
+
+		if (err < 0) {
+			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+			break;
+		}
+
+		chan->buffer_seq_srej = __next_seq(chan, chan->buffer_seq_srej);
+		tx_seq = __next_seq(chan, tx_seq);
+	}
+}
+
+static void l2cap_resend_srejframe(struct l2cap_chan *chan, u16 tx_seq)
+{
+	struct srej_list *l, *tmp;
+	u32 control;
+
+	list_for_each_entry_safe(l, tmp, &chan->srej_l, list) {
+		if (l->tx_seq == tx_seq) {
+			list_del(&l->list);
+			kfree(l);
+			return;
+		}
+		control = __set_ctrl_super(chan, L2CAP_SUPER_SREJ);
+		control |= __set_reqseq(chan, l->tx_seq);
+		l2cap_send_sframe(chan, control);
+		list_del(&l->list);
+		list_add_tail(&l->list, &chan->srej_l);
+	}
+}
+
+static int l2cap_send_srejframe(struct l2cap_chan *chan, u16 tx_seq)
+{
+	struct srej_list *new;
+	u32 control;
+
+	while (tx_seq != chan->expected_tx_seq) {
+		control = __set_ctrl_super(chan, L2CAP_SUPER_SREJ);
+		control |= __set_reqseq(chan, chan->expected_tx_seq);
+		l2cap_send_sframe(chan, control);
+
+		new = kzalloc(sizeof(struct srej_list), GFP_ATOMIC);
+		if (!new)
+			return -ENOMEM;
+
+		new->tx_seq = chan->expected_tx_seq;
+
+		chan->expected_tx_seq = __next_seq(chan, chan->expected_tx_seq);
+
+		list_add_tail(&new->list, &chan->srej_l);
+	}
+
+	chan->expected_tx_seq = __next_seq(chan, chan->expected_tx_seq);
+
+	return 0;
+}
+
+static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u32 rx_control, struct sk_buff *skb)
+{
+	u16 tx_seq = __get_txseq(chan, rx_control);
+	u16 req_seq = __get_reqseq(chan, rx_control);
+	u8 sar = __get_ctrl_sar(chan, rx_control);
+	int tx_seq_offset, expected_tx_seq_offset;
+	int num_to_ack = (chan->tx_win/6) + 1;
+	int err = 0;
+
+	BT_DBG("chan %p len %d tx_seq %d rx_control 0x%8.8x", chan, skb->len,
+							tx_seq, rx_control);
+
+	if (__is_ctrl_final(chan, rx_control) &&
+			test_bit(CONN_WAIT_F, &chan->conn_state)) {
+		__clear_monitor_timer(chan);
+		if (chan->unacked_frames > 0)
+			__set_retrans_timer(chan);
+		clear_bit(CONN_WAIT_F, &chan->conn_state);
+	}
+
+	chan->expected_ack_seq = req_seq;
+	l2cap_drop_acked_frames(chan);
+
+	tx_seq_offset = __seq_offset(chan, tx_seq, chan->buffer_seq);
+
+	/* invalid tx_seq */
+	if (tx_seq_offset >= chan->tx_win) {
+		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		goto drop;
+	}
+
+	if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+		if (!test_bit(CONN_RNR_SENT, &chan->conn_state))
+			l2cap_send_ack(chan);
+		goto drop;
+	}
+
+	if (tx_seq == chan->expected_tx_seq)
+		goto expected;
+
+	if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
+		struct srej_list *first;
+
+		first = list_first_entry(&chan->srej_l,
+				struct srej_list, list);
+		if (tx_seq == first->tx_seq) {
+			l2cap_add_to_srej_queue(chan, skb, tx_seq, sar);
+			l2cap_check_srej_gap(chan, tx_seq);
+
+			list_del(&first->list);
+			kfree(first);
+
+			if (list_empty(&chan->srej_l)) {
+				chan->buffer_seq = chan->buffer_seq_srej;
+				clear_bit(CONN_SREJ_SENT, &chan->conn_state);
+				l2cap_send_ack(chan);
+				BT_DBG("chan %p, Exit SREJ_SENT", chan);
+			}
+		} else {
+			struct srej_list *l;
+
+			/* duplicated tx_seq */
+			if (l2cap_add_to_srej_queue(chan, skb, tx_seq, sar) < 0)
+				goto drop;
+
+			list_for_each_entry(l, &chan->srej_l, list) {
+				if (l->tx_seq == tx_seq) {
+					l2cap_resend_srejframe(chan, tx_seq);
+					return 0;
+				}
+			}
+
+			err = l2cap_send_srejframe(chan, tx_seq);
+			if (err < 0) {
+				l2cap_send_disconn_req(chan->conn, chan, -err);
+				return err;
+			}
+		}
+	} else {
+		expected_tx_seq_offset = __seq_offset(chan,
+				chan->expected_tx_seq, chan->buffer_seq);
+
+		/* duplicated tx_seq */
+		if (tx_seq_offset < expected_tx_seq_offset)
+			goto drop;
+
+		set_bit(CONN_SREJ_SENT, &chan->conn_state);
+
+		BT_DBG("chan %p, Enter SREJ", chan);
+
+		INIT_LIST_HEAD(&chan->srej_l);
+		chan->buffer_seq_srej = chan->buffer_seq;
+
+		__skb_queue_head_init(&chan->srej_q);
+		l2cap_add_to_srej_queue(chan, skb, tx_seq, sar);
+
+		/* Set P-bit only if there are some I-frames to ack. */
+		if (__clear_ack_timer(chan))
+			set_bit(CONN_SEND_PBIT, &chan->conn_state);
+
+		err = l2cap_send_srejframe(chan, tx_seq);
+		if (err < 0) {
+			l2cap_send_disconn_req(chan->conn, chan, -err);
+			return err;
+		}
+	}
+	return 0;
+
+expected:
+	chan->expected_tx_seq = __next_seq(chan, chan->expected_tx_seq);
+
+	if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
+		bt_cb(skb)->tx_seq = tx_seq;
+		bt_cb(skb)->sar = sar;
+		__skb_queue_tail(&chan->srej_q, skb);
+		return 0;
+	}
+
+	err = l2cap_reassemble_sdu(chan, skb, rx_control);
+	chan->buffer_seq = __next_seq(chan, chan->buffer_seq);
+
+	if (err < 0) {
+		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		return err;
+	}
+
+	if (__is_ctrl_final(chan, rx_control)) {
+		if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
+			l2cap_retransmit_frames(chan);
+	}
+
+
+	chan->num_acked = (chan->num_acked + 1) % num_to_ack;
+	if (chan->num_acked == num_to_ack - 1)
+		l2cap_send_ack(chan);
+	else
+		__set_ack_timer(chan);
+
+	return 0;
+
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
+static inline void l2cap_data_channel_rrframe(struct l2cap_chan *chan, u32 rx_control)
+{
+	BT_DBG("chan %p, req_seq %d ctrl 0x%8.8x", chan,
+				__get_reqseq(chan, rx_control), rx_control);
+
+	chan->expected_ack_seq = __get_reqseq(chan, rx_control);
+	l2cap_drop_acked_frames(chan);
+
+	if (__is_ctrl_poll(chan, rx_control)) {
+		set_bit(CONN_SEND_FBIT, &chan->conn_state);
+		if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
+			if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state) &&
+					(chan->unacked_frames > 0))
+				__set_retrans_timer(chan);
+
+			clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+			l2cap_send_srejtail(chan);
+		} else {
+			l2cap_send_i_or_rr_or_rnr(chan);
+		}
+
+	} else if (__is_ctrl_final(chan, rx_control)) {
+		clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+
+		if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
+			l2cap_retransmit_frames(chan);
+
+	} else {
+		if (test_bit(CONN_REMOTE_BUSY, &chan->conn_state) &&
+				(chan->unacked_frames > 0))
+			__set_retrans_timer(chan);
+
+		clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+		if (test_bit(CONN_SREJ_SENT, &chan->conn_state))
+			l2cap_send_ack(chan);
+		else
+			l2cap_ertm_send(chan);
+	}
+}
+
+static inline void l2cap_data_channel_rejframe(struct l2cap_chan *chan, u32 rx_control)
+{
+	u16 tx_seq = __get_reqseq(chan, rx_control);
+
+	BT_DBG("chan %p, req_seq %d ctrl 0x%8.8x", chan, tx_seq, rx_control);
+
+	clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+
+	chan->expected_ack_seq = tx_seq;
+	l2cap_drop_acked_frames(chan);
+
+	if (__is_ctrl_final(chan, rx_control)) {
+		if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
+			l2cap_retransmit_frames(chan);
+	} else {
+		l2cap_retransmit_frames(chan);
+
+		if (test_bit(CONN_WAIT_F, &chan->conn_state))
+			set_bit(CONN_REJ_ACT, &chan->conn_state);
+	}
+}
+static inline void l2cap_data_channel_srejframe(struct l2cap_chan *chan, u32 rx_control)
+{
+	u16 tx_seq = __get_reqseq(chan, rx_control);
+
+	BT_DBG("chan %p, req_seq %d ctrl 0x%8.8x", chan, tx_seq, rx_control);
+
+	clear_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+
+	if (__is_ctrl_poll(chan, rx_control)) {
+		chan->expected_ack_seq = tx_seq;
+		l2cap_drop_acked_frames(chan);
+
+		set_bit(CONN_SEND_FBIT, &chan->conn_state);
+		l2cap_retransmit_one_frame(chan, tx_seq);
+
+		l2cap_ertm_send(chan);
+
+		if (test_bit(CONN_WAIT_F, &chan->conn_state)) {
+			chan->srej_save_reqseq = tx_seq;
+			set_bit(CONN_SREJ_ACT, &chan->conn_state);
+		}
+	} else if (__is_ctrl_final(chan, rx_control)) {
+		if (test_bit(CONN_SREJ_ACT, &chan->conn_state) &&
+				chan->srej_save_reqseq == tx_seq)
+			clear_bit(CONN_SREJ_ACT, &chan->conn_state);
+		else
+			l2cap_retransmit_one_frame(chan, tx_seq);
+	} else {
+		l2cap_retransmit_one_frame(chan, tx_seq);
+		if (test_bit(CONN_WAIT_F, &chan->conn_state)) {
+			chan->srej_save_reqseq = tx_seq;
+			set_bit(CONN_SREJ_ACT, &chan->conn_state);
+		}
+	}
+}
+
+static inline void l2cap_data_channel_rnrframe(struct l2cap_chan *chan, u32 rx_control)
+{
+	u16 tx_seq = __get_reqseq(chan, rx_control);
+
+	BT_DBG("chan %p, req_seq %d ctrl 0x%8.8x", chan, tx_seq, rx_control);
+
+	set_bit(CONN_REMOTE_BUSY, &chan->conn_state);
+	chan->expected_ack_seq = tx_seq;
+	l2cap_drop_acked_frames(chan);
+
+	if (__is_ctrl_poll(chan, rx_control))
+		set_bit(CONN_SEND_FBIT, &chan->conn_state);
+
+	if (!test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
+		__clear_retrans_timer(chan);
+		if (__is_ctrl_poll(chan, rx_control))
+			l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_FINAL);
+		return;
+	}
+
+	if (__is_ctrl_poll(chan, rx_control)) {
+		l2cap_send_srejtail(chan);
+	} else {
+		rx_control = __set_ctrl_super(chan, L2CAP_SUPER_RR);
+		l2cap_send_sframe(chan, rx_control);
+	}
+}
+
+static inline int l2cap_data_channel_sframe(struct l2cap_chan *chan, u32 rx_control, struct sk_buff *skb)
+{
+	BT_DBG("chan %p rx_control 0x%8.8x len %d", chan, rx_control, skb->len);
+
+	if (__is_ctrl_final(chan, rx_control) &&
+			test_bit(CONN_WAIT_F, &chan->conn_state)) {
+		__clear_monitor_timer(chan);
+		if (chan->unacked_frames > 0)
+			__set_retrans_timer(chan);
+		clear_bit(CONN_WAIT_F, &chan->conn_state);
+	}
+
+	switch (__get_ctrl_super(chan, rx_control)) {
+	case L2CAP_SUPER_RR:
+		l2cap_data_channel_rrframe(chan, rx_control);
+		break;
+
+	case L2CAP_SUPER_REJ:
+		l2cap_data_channel_rejframe(chan, rx_control);
+		break;
+
+	case L2CAP_SUPER_SREJ:
+		l2cap_data_channel_srejframe(chan, rx_control);
+		break;
+
+	case L2CAP_SUPER_RNR:
+		l2cap_data_channel_rnrframe(chan, rx_control);
+		break;
+	}
+
+	kfree_skb(skb);
+	return 0;
+}
+
+static int l2cap_ertm_data_rcv(struct l2cap_chan *chan, struct sk_buff *skb)
+{
+	u32 control;
+	u16 req_seq;
+	int len, next_tx_seq_offset, req_seq_offset;
+
+	control = __get_control(chan, skb->data);
+	skb_pull(skb, __ctrl_size(chan));
+	len = skb->len;
+
+	/*
+	 * We can just drop the corrupted I-frame here.
+	 * Receiver will miss it and start proper recovery
+	 * procedures and ask retransmission.
+	 */
+	if (l2cap_check_fcs(chan, skb))
+		goto drop;
+
+	if (__is_sar_start(chan, control) && !__is_sframe(chan, control))
+		len -= L2CAP_SDULEN_SIZE;
+
+	if (chan->fcs == L2CAP_FCS_CRC16)
+		len -= L2CAP_FCS_SIZE;
+
+	if (len > chan->mps) {
+		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		goto drop;
+	}
+
+	req_seq = __get_reqseq(chan, control);
+
+	req_seq_offset = __seq_offset(chan, req_seq, chan->expected_ack_seq);
+
+	next_tx_seq_offset = __seq_offset(chan, chan->next_tx_seq,
+						chan->expected_ack_seq);
+
+	/* check for invalid req-seq */
+	if (req_seq_offset > next_tx_seq_offset) {
+		l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+		goto drop;
+	}
+
+	if (!__is_sframe(chan, control)) {
+		if (len < 0) {
+			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+			goto drop;
+		}
+
+		l2cap_data_channel_iframe(chan, control, skb);
+	} else {
+		if (len != 0) {
+			BT_ERR("%d", len);
+			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+			goto drop;
+		}
+
+		l2cap_data_channel_sframe(chan, control, skb);
+	}
+
+	return 0;
+
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
+static inline int l2cap_data_channel(struct l2cap_conn *conn, u16 cid, struct sk_buff *skb)
+{
+	struct l2cap_chan *chan;
+	u32 control;
+	u16 tx_seq;
+	int len;
+
+	chan = l2cap_get_chan_by_scid(conn, cid);
+	if (!chan) {
+		BT_DBG("unknown cid 0x%4.4x", cid);
+		/* Drop packet and return */
+		kfree_skb(skb);
+		return 0;
+	}
+
+	BT_DBG("chan %p, len %d", chan, skb->len);
+
+	if (chan->state != BT_CONNECTED)
+		goto drop;
+
+	switch (chan->mode) {
+	case L2CAP_MODE_BASIC:
+		/* If socket recv buffers overflows we drop data here
+		 * which is *bad* because L2CAP has to be reliable.
+		 * But we don't have any other choice. L2CAP doesn't
+		 * provide flow control mechanism. */
+
+		if (chan->imtu < skb->len)
+			goto drop;
+
+		if (!chan->ops->recv(chan->data, skb))
+			goto done;
+		break;
+
+	case L2CAP_MODE_ERTM:
+		l2cap_ertm_data_rcv(chan, skb);
+
+		goto done;
+
+	case L2CAP_MODE_STREAMING:
+		control = __get_control(chan, skb->data);
+		skb_pull(skb, __ctrl_size(chan));
+		len = skb->len;
+
+		if (l2cap_check_fcs(chan, skb))
+			goto drop;
+
+		if (__is_sar_start(chan, control))
+			len -= L2CAP_SDULEN_SIZE;
+
+		if (chan->fcs == L2CAP_FCS_CRC16)
+			len -= L2CAP_FCS_SIZE;
+
+		if (len > chan->mps || len < 0 || __is_sframe(chan, control))
+			goto drop;
+
+		tx_seq = __get_txseq(chan, control);
+
+		if (chan->expected_tx_seq != tx_seq) {
+			/* Frame(s) missing - must discard partial SDU */
+			kfree_skb(chan->sdu);
+			chan->sdu = NULL;
+			chan->sdu_last_frag = NULL;
+			chan->sdu_len = 0;
+
+			/* TODO: Notify userland of missing data */
+		}
+
+		chan->expected_tx_seq = __next_seq(chan, tx_seq);
+
+		if (l2cap_reassemble_sdu(chan, skb, control) == -EMSGSIZE)
+			l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+
+		goto done;
+
+	default:
+		BT_DBG("chan %p: bad mode 0x%2.2x", chan, chan->mode);
+		break;
+	}
+
+drop:
+	kfree_skb(skb);
+
+done:
+	l2cap_chan_unlock(chan);
+
+	return 0;
+}
+
+static inline int l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, struct sk_buff *skb)
+{
+	struct l2cap_chan *chan;
+
+	chan = l2cap_global_chan_by_psm(0, psm, conn->src);
+	if (!chan)
+		goto drop;
+
+	BT_DBG("chan %p, len %d", chan, skb->len);
+
+	if (chan->state != BT_BOUND && chan->state != BT_CONNECTED)
+		goto drop;
+
+	if (chan->imtu < skb->len)
+		goto drop;
+
+	if (!chan->ops->recv(chan->data, skb))
+		return 0;
+
+drop:
+	kfree_skb(skb);
+
+	return 0;
+}
+
+static inline int l2cap_att_channel(struct l2cap_conn *conn, __le16 cid, struct sk_buff *skb)
+{
+	struct l2cap_chan *chan;
+
+	chan = l2cap_global_chan_by_scid(0, cid, conn->src);
+	if (!chan)
+		goto drop;
+
+	BT_DBG("chan %p, len %d", chan, skb->len);
+
+	if (chan->state != BT_BOUND && chan->state != BT_CONNECTED)
+		goto drop;
+
+	if (chan->imtu < skb->len)
+		goto drop;
+
+	if (!chan->ops->recv(chan->data, skb))
+		return 0;
+
+drop:
+	kfree_skb(skb);
+
+	return 0;
+}
+
+static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	struct l2cap_hdr *lh = (void *) skb->data;
+	u16 cid, len;
+	__le16 psm;
+
+	skb_pull(skb, L2CAP_HDR_SIZE);
+	cid = __le16_to_cpu(lh->cid);
+	len = __le16_to_cpu(lh->len);
+
+	if (len != skb->len) {
+		kfree_skb(skb);
+		return;
+	}
+
+	BT_DBG("len %d, cid 0x%4.4x", len, cid);
+
+	switch (cid) {
+	case L2CAP_CID_LE_SIGNALING:
+	case L2CAP_CID_SIGNALING:
+		l2cap_sig_channel(conn, skb);
+		break;
+
+	case L2CAP_CID_CONN_LESS:
+		psm = get_unaligned_le16(skb->data);
+		skb_pull(skb, 2);
+		l2cap_conless_channel(conn, psm, skb);
+		break;
+
+	case L2CAP_CID_LE_DATA:
+		l2cap_att_channel(conn, cid, skb);
+		break;
+
+	case L2CAP_CID_SMP:
+		if (smp_sig_channel(conn, skb))
+			l2cap_conn_del(conn->hcon, EACCES);
+		break;
+
+	default:
+		l2cap_data_channel(conn, cid, skb);
+		break;
+	}
+}
+
+/* ---- L2CAP interface with lower layer (HCI) ---- */
+
+int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	int exact = 0, lm1 = 0, lm2 = 0;
+	struct l2cap_chan *c;
+
+	BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
+
+	/* Find listening sockets and check their link_mode */
+	read_lock(&chan_list_lock);
+	list_for_each_entry(c, &chan_list, global_l) {
+		struct sock *sk = c->sk;
+
+		if (c->state != BT_LISTEN)
+			continue;
+
+		if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr)) {
+			lm1 |= HCI_LM_ACCEPT;
+			if (test_bit(FLAG_ROLE_SWITCH, &c->flags))
+				lm1 |= HCI_LM_MASTER;
+			exact++;
+		} else if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+			lm2 |= HCI_LM_ACCEPT;
+			if (test_bit(FLAG_ROLE_SWITCH, &c->flags))
+				lm2 |= HCI_LM_MASTER;
+		}
+	}
+	read_unlock(&chan_list_lock);
+
+	return exact ? lm1 : lm2;
+}
+
+int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
+{
+	struct l2cap_conn *conn;
+
+	BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
+
+	if (!status) {
+		conn = l2cap_conn_add(hcon, status);
+		if (conn)
+			l2cap_conn_ready(conn);
+	} else
+		l2cap_conn_del(hcon, bt_to_errno(status));
+
+	return 0;
+}
+
+int l2cap_disconn_ind(struct hci_conn *hcon)
+{
+	struct l2cap_conn *conn = hcon->l2cap_data;
+
+	BT_DBG("hcon %p", hcon);
+
+	if (!conn)
+		return HCI_ERROR_REMOTE_USER_TERM;
+	return conn->disc_reason;
+}
+
+int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason)
+{
+	BT_DBG("hcon %p reason %d", hcon, reason);
+
+	l2cap_conn_del(hcon, bt_to_errno(reason));
+	return 0;
+}
+
+static inline void l2cap_check_encryption(struct l2cap_chan *chan, u8 encrypt)
+{
+	if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED)
+		return;
+
+	if (encrypt == 0x00) {
+		if (chan->sec_level == BT_SECURITY_MEDIUM) {
+			__clear_chan_timer(chan);
+			__set_chan_timer(chan, L2CAP_ENC_TIMEOUT);
+		} else if (chan->sec_level == BT_SECURITY_HIGH)
+			l2cap_chan_close(chan, ECONNREFUSED);
+	} else {
+		if (chan->sec_level == BT_SECURITY_MEDIUM)
+			__clear_chan_timer(chan);
+	}
+}
+
+int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
+{
+	struct l2cap_conn *conn = hcon->l2cap_data;
+	struct l2cap_chan *chan;
+
+	if (!conn)
+		return 0;
+
+	BT_DBG("conn %p", conn);
+
+	if (hcon->type == LE_LINK) {
+		smp_distribute_keys(conn, 0);
+		cancel_delayed_work(&conn->security_timer);
+	}
+
+	mutex_lock(&conn->chan_lock);
+
+	list_for_each_entry(chan, &conn->chan_l, list) {
+		l2cap_chan_lock(chan);
+
+		BT_DBG("chan->scid %d", chan->scid);
+
+		if (chan->scid == L2CAP_CID_LE_DATA) {
+			if (!status && encrypt) {
+				chan->sec_level = hcon->sec_level;
+				l2cap_chan_ready(chan);
+			}
+
+			l2cap_chan_unlock(chan);
+			continue;
+		}
+
+		if (test_bit(CONF_CONNECT_PEND, &chan->conf_state)) {
+			l2cap_chan_unlock(chan);
+			continue;
+		}
+
+		if (!status && (chan->state == BT_CONNECTED ||
+						chan->state == BT_CONFIG)) {
+			struct sock *sk = chan->sk;
+
+			bt_sk(sk)->suspended = false;
+			sk->sk_state_change(sk);
+
+			l2cap_check_encryption(chan, encrypt);
+			l2cap_chan_unlock(chan);
+			continue;
+		}
+
+		if (chan->state == BT_CONNECT) {
+			if (!status) {
+				l2cap_send_conn_req(chan);
+			} else {
+				__clear_chan_timer(chan);
+				__set_chan_timer(chan, L2CAP_DISC_TIMEOUT);
+			}
+		} else if (chan->state == BT_CONNECT2) {
+			struct sock *sk = chan->sk;
+			struct l2cap_conn_rsp rsp;
+			__u16 res, stat;
+
+			lock_sock(sk);
+
+			if (!status) {
+				if (bt_sk(sk)->defer_setup) {
+					struct sock *parent = bt_sk(sk)->parent;
+					res = L2CAP_CR_PEND;
+					stat = L2CAP_CS_AUTHOR_PEND;
+					if (parent)
+						parent->sk_data_ready(parent, 0);
+				} else {
+					__l2cap_state_change(chan, BT_CONFIG);
+					res = L2CAP_CR_SUCCESS;
+					stat = L2CAP_CS_NO_INFO;
+				}
+			} else {
+				__l2cap_state_change(chan, BT_DISCONN);
+				__set_chan_timer(chan, L2CAP_DISC_TIMEOUT);
+				res = L2CAP_CR_SEC_BLOCK;
+				stat = L2CAP_CS_NO_INFO;
+			}
+
+			release_sock(sk);
+
+			rsp.scid   = cpu_to_le16(chan->dcid);
+			rsp.dcid   = cpu_to_le16(chan->scid);
+			rsp.result = cpu_to_le16(res);
+			rsp.status = cpu_to_le16(stat);
+			l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
+							sizeof(rsp), &rsp);
+		}
+
+		l2cap_chan_unlock(chan);
+	}
+
+	mutex_unlock(&conn->chan_lock);
+
+	return 0;
+}
+
+int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
+{
+	struct l2cap_conn *conn = hcon->l2cap_data;
+
+	if (!conn)
+		conn = l2cap_conn_add(hcon, 0);
+
+	if (!conn)
+		goto drop;
+
+	BT_DBG("conn %p len %d flags 0x%x", conn, skb->len, flags);
+
+	if (!(flags & ACL_CONT)) {
+		struct l2cap_hdr *hdr;
+		int len;
+
+		if (conn->rx_len) {
+			BT_ERR("Unexpected start frame (len %d)", skb->len);
+			kfree_skb(conn->rx_skb);
+			conn->rx_skb = NULL;
+			conn->rx_len = 0;
+			l2cap_conn_unreliable(conn, ECOMM);
+		}
+
+		/* Start fragment always begin with Basic L2CAP header */
+		if (skb->len < L2CAP_HDR_SIZE) {
+			BT_ERR("Frame is too short (len %d)", skb->len);
+			l2cap_conn_unreliable(conn, ECOMM);
+			goto drop;
+		}
+
+		hdr = (struct l2cap_hdr *) skb->data;
+		len = __le16_to_cpu(hdr->len) + L2CAP_HDR_SIZE;
+
+		if (len == skb->len) {
+			/* Complete frame received */
+			l2cap_recv_frame(conn, skb);
+			return 0;
+		}
+
+		BT_DBG("Start: total len %d, frag len %d", len, skb->len);
+
+		if (skb->len > len) {
+			BT_ERR("Frame is too long (len %d, expected len %d)",
+				skb->len, len);
+			l2cap_conn_unreliable(conn, ECOMM);
+			goto drop;
+		}
+
+		/* Allocate skb for the complete frame (with header) */
+		conn->rx_skb = bt_skb_alloc(len, GFP_ATOMIC);
+		if (!conn->rx_skb)
+			goto drop;
+
+		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
+								skb->len);
+		conn->rx_len = len - skb->len;
+	} else {
+		BT_DBG("Cont: frag len %d (expecting %d)", skb->len, conn->rx_len);
+
+		if (!conn->rx_len) {
+			BT_ERR("Unexpected continuation frame (len %d)", skb->len);
+			l2cap_conn_unreliable(conn, ECOMM);
+			goto drop;
+		}
+
+		if (skb->len > conn->rx_len) {
+			BT_ERR("Fragment is too long (len %d, expected %d)",
+					skb->len, conn->rx_len);
+			kfree_skb(conn->rx_skb);
+			conn->rx_skb = NULL;
+			conn->rx_len = 0;
+			l2cap_conn_unreliable(conn, ECOMM);
+			goto drop;
+		}
+
+		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
+								skb->len);
+		conn->rx_len -= skb->len;
+
+		if (!conn->rx_len) {
+			/* Complete frame received */
+			l2cap_recv_frame(conn, conn->rx_skb);
+			conn->rx_skb = NULL;
+		}
+	}
+
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
+static int l2cap_debugfs_show(struct seq_file *f, void *p)
+{
+	struct l2cap_chan *c;
+
+	read_lock(&chan_list_lock);
+
+	list_for_each_entry(c, &chan_list, global_l) {
+		struct sock *sk = c->sk;
+
+		seq_printf(f, "%s %s %d %d 0x%4.4x 0x%4.4x %d %d %d %d\n",
+					batostr(&bt_sk(sk)->src),
+					batostr(&bt_sk(sk)->dst),
+					c->state, __le16_to_cpu(c->psm),
+					c->scid, c->dcid, c->imtu, c->omtu,
+					c->sec_level, c->mode);
+	}
+
+	read_unlock(&chan_list_lock);
+
+	return 0;
+}
+
+static int l2cap_debugfs_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, l2cap_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations l2cap_debugfs_fops = {
+	.open		= l2cap_debugfs_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static struct dentry *l2cap_debugfs;
+
+int __init l2cap_init(void)
+{
+	int err;
+
+	err = l2cap_init_sockets();
+	if (err < 0)
+		return err;
+
+	if (bt_debugfs) {
+		l2cap_debugfs = debugfs_create_file("l2cap", 0444,
+					bt_debugfs, NULL, &l2cap_debugfs_fops);
+		if (!l2cap_debugfs)
+			BT_ERR("Failed to create L2CAP debug file");
+	}
+
+	return 0;
+}
+
+void l2cap_exit(void)
+{
+	debugfs_remove(l2cap_debugfs);
+	l2cap_cleanup_sockets();
+}
+
+module_param(disable_ertm, bool, 0644);
+MODULE_PARM_DESC(disable_ertm, "Disable enhanced retransmission mode");
diff --git a/net/bluetooth_tizen/l2cap_sock.c b/net/bluetooth_tizen/l2cap_sock.c
new file mode 100644
index 0000000..2cae7af
--- /dev/null
+++ b/net/bluetooth_tizen/l2cap_sock.c
@@ -0,0 +1,1156 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+   Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org>
+   Copyright (C) 2010 Google Inc.
+   Copyright (C) 2011 ProFUSION Embedded Systems
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth L2CAP sockets. */
+
+#include <linux/security.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+#include <net/bluetooth/smp.h>
+
+static const struct proto_ops l2cap_sock_ops;
+static void l2cap_sock_init(struct sock *sk, struct sock *parent);
+static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio);
+
+static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	struct sockaddr_l2 la;
+	int len, err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	if (!addr || addr->sa_family != AF_BLUETOOTH)
+		return -EINVAL;
+
+	memset(&la, 0, sizeof(la));
+	len = min_t(unsigned int, sizeof(la), alen);
+	memcpy(&la, addr, len);
+
+	if (la.l2_cid && la.l2_psm)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	if (sk->sk_state != BT_OPEN) {
+		err = -EBADFD;
+		goto done;
+	}
+
+	if (la.l2_psm) {
+		__u16 psm = __le16_to_cpu(la.l2_psm);
+
+		/* PSM must be odd and lsb of upper byte must be 0 */
+		if ((psm & 0x0101) != 0x0001) {
+			err = -EINVAL;
+			goto done;
+		}
+
+		/* Restrict usage of well-known PSMs */
+		if (psm < 0x1001 && !capable(CAP_NET_BIND_SERVICE)) {
+			err = -EACCES;
+			goto done;
+		}
+	}
+
+	if (la.l2_cid)
+		err = l2cap_add_scid(chan, __le16_to_cpu(la.l2_cid));
+	else
+		err = l2cap_add_psm(chan, &la.l2_bdaddr, la.l2_psm);
+
+	if (err < 0)
+		goto done;
+
+	if (__le16_to_cpu(la.l2_psm) == 0x0001 ||
+				__le16_to_cpu(la.l2_psm) == 0x0003)
+		chan->sec_level = BT_SECURITY_SDP;
+
+	bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);
+
+	chan->state = BT_BOUND;
+	sk->sk_state = BT_BOUND;
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	struct sockaddr_l2 la;
+	int len, err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	if (!addr || alen < sizeof(addr->sa_family) ||
+	    addr->sa_family != AF_BLUETOOTH)
+		return -EINVAL;
+
+	memset(&la, 0, sizeof(la));
+	len = min_t(unsigned int, sizeof(la), alen);
+	memcpy(&la, addr, len);
+
+	if (la.l2_cid && la.l2_psm)
+		return -EINVAL;
+
+	err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
+				&la.l2_bdaddr);
+	if (err)
+		return err;
+
+	lock_sock(sk);
+
+	err = bt_sock_wait_state(sk, BT_CONNECTED,
+			sock_sndtimeo(sk, flags & O_NONBLOCK));
+
+	release_sock(sk);
+
+	return err;
+}
+
+static int l2cap_sock_listen(struct socket *sock, int backlog)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	int err = 0;
+
+	BT_DBG("sk %p backlog %d", sk, backlog);
+
+	lock_sock(sk);
+
+	if ((sock->type != SOCK_SEQPACKET && sock->type != SOCK_STREAM)
+			|| sk->sk_state != BT_BOUND) {
+		err = -EBADFD;
+		goto done;
+	}
+
+	switch (chan->mode) {
+	case L2CAP_MODE_BASIC:
+		break;
+	case L2CAP_MODE_ERTM:
+	case L2CAP_MODE_STREAMING:
+		if (!disable_ertm)
+			break;
+		/* fall through */
+	default:
+		err = -ENOTSUPP;
+		goto done;
+	}
+
+	sk->sk_max_ack_backlog = backlog;
+	sk->sk_ack_backlog = 0;
+
+	chan->state = BT_LISTEN;
+	sk->sk_state = BT_LISTEN;
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int l2cap_sock_accept(struct socket *sock, struct socket *newsock, int flags)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	struct sock *sk = sock->sk, *nsk;
+	long timeo;
+	int err = 0;
+
+	lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
+
+	timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+
+	BT_DBG("sk %p timeo %ld", sk, timeo);
+
+	/* Wait for an incoming connection. (wake-one). */
+	add_wait_queue_exclusive(sk_sleep(sk), &wait);
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (sk->sk_state != BT_LISTEN) {
+			err = -EBADFD;
+			break;
+		}
+
+		nsk = bt_accept_dequeue(sk, newsock);
+		if (nsk)
+			break;
+
+		if (!timeo) {
+			err = -EAGAIN;
+			break;
+		}
+
+		if (signal_pending(current)) {
+			err = sock_intr_errno(timeo);
+			break;
+		}
+
+		release_sock(sk);
+		timeo = schedule_timeout(timeo);
+		lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
+	}
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+
+	if (err)
+		goto done;
+
+	newsock->state = SS_CONNECTED;
+
+	BT_DBG("new socket %p", nsk);
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer)
+{
+	struct sockaddr_l2 *la = (struct sockaddr_l2 *) addr;
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	addr->sa_family = AF_BLUETOOTH;
+	*len = sizeof(struct sockaddr_l2);
+
+	if (peer) {
+		la->l2_psm = chan->psm;
+		bacpy(&la->l2_bdaddr, &bt_sk(sk)->dst);
+		la->l2_cid = cpu_to_le16(chan->dcid);
+	} else {
+		la->l2_psm = chan->sport;
+		bacpy(&la->l2_bdaddr, &bt_sk(sk)->src);
+		la->l2_cid = cpu_to_le16(chan->scid);
+	}
+
+	return 0;
+}
+
+static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	struct l2cap_options opts;
+	struct l2cap_conninfo cinfo;
+	int len, err = 0;
+	u32 opt;
+
+	BT_DBG("sk %p", sk);
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	lock_sock(sk);
+
+	switch (optname) {
+	case L2CAP_OPTIONS:
+		memset(&opts, 0, sizeof(opts));
+		opts.imtu     = chan->imtu;
+		opts.omtu     = chan->omtu;
+		opts.flush_to = chan->flush_to;
+		opts.mode     = chan->mode;
+		opts.fcs      = chan->fcs;
+		opts.max_tx   = chan->max_tx;
+		opts.txwin_size = chan->tx_win;
+
+		len = min_t(unsigned int, len, sizeof(opts));
+		if (copy_to_user(optval, (char *) &opts, len))
+			err = -EFAULT;
+
+		break;
+
+	case L2CAP_LM:
+		switch (chan->sec_level) {
+		case BT_SECURITY_LOW:
+			opt = L2CAP_LM_AUTH;
+			break;
+		case BT_SECURITY_MEDIUM:
+			opt = L2CAP_LM_AUTH | L2CAP_LM_ENCRYPT;
+			break;
+		case BT_SECURITY_HIGH:
+			opt = L2CAP_LM_AUTH | L2CAP_LM_ENCRYPT |
+							L2CAP_LM_SECURE;
+			break;
+		default:
+			opt = 0;
+			break;
+		}
+
+		if (test_bit(FLAG_ROLE_SWITCH, &chan->flags))
+			opt |= L2CAP_LM_MASTER;
+
+		if (test_bit(FLAG_FORCE_RELIABLE, &chan->flags))
+			opt |= L2CAP_LM_RELIABLE;
+
+		if (put_user(opt, (u32 __user *) optval))
+			err = -EFAULT;
+		break;
+
+	case L2CAP_CONNINFO:
+		if (sk->sk_state != BT_CONNECTED &&
+					!(sk->sk_state == BT_CONNECT2 &&
+						bt_sk(sk)->defer_setup)) {
+			err = -ENOTCONN;
+			break;
+		}
+
+		memset(&cinfo, 0, sizeof(cinfo));
+		cinfo.hci_handle = chan->conn->hcon->handle;
+		memcpy(cinfo.dev_class, chan->conn->hcon->dev_class, 3);
+
+		len = min_t(unsigned int, len, sizeof(cinfo));
+		if (copy_to_user(optval, (char *) &cinfo, len))
+			err = -EFAULT;
+
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	struct bt_security sec;
+	struct bt_power pwr;
+	int len, err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	if (level == SOL_L2CAP)
+		return l2cap_sock_getsockopt_old(sock, optname, optval, optlen);
+
+	if (level != SOL_BLUETOOTH)
+		return -ENOPROTOOPT;
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	lock_sock(sk);
+
+	switch (optname) {
+	case BT_SECURITY:
+		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
+					chan->chan_type != L2CAP_CHAN_RAW) {
+			err = -EINVAL;
+			break;
+		}
+
+		memset(&sec, 0, sizeof(sec));
+		if (chan->conn)
+			sec.level = chan->conn->hcon->sec_level;
+		else
+			sec.level = chan->sec_level;
+
+		if (sk->sk_state == BT_CONNECTED)
+			sec.key_size = chan->conn->hcon->enc_key_size;
+
+		len = min_t(unsigned int, len, sizeof(sec));
+		if (copy_to_user(optval, (char *) &sec, len))
+			err = -EFAULT;
+
+		break;
+
+	case BT_DEFER_SETUP:
+		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (put_user(bt_sk(sk)->defer_setup, (u32 __user *) optval))
+			err = -EFAULT;
+
+		break;
+
+	case BT_FLUSHABLE:
+		if (put_user(test_bit(FLAG_FLUSHABLE, &chan->flags),
+						(u32 __user *) optval))
+			err = -EFAULT;
+
+		break;
+
+	case BT_POWER:
+		if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM
+				&& sk->sk_type != SOCK_RAW) {
+			err = -EINVAL;
+			break;
+		}
+
+		pwr.force_active = test_bit(FLAG_FORCE_ACTIVE, &chan->flags);
+
+		len = min_t(unsigned int, len, sizeof(pwr));
+		if (copy_to_user(optval, (char *) &pwr, len))
+			err = -EFAULT;
+
+		break;
+
+	case BT_CHANNEL_POLICY:
+		if (!enable_hs) {
+			err = -ENOPROTOOPT;
+			break;
+		}
+
+		if (put_user(chan->chan_policy, (u32 __user *) optval))
+			err = -EFAULT;
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	struct l2cap_options opts;
+	int len, err = 0;
+	u32 opt;
+
+	BT_DBG("sk %p", sk);
+
+	lock_sock(sk);
+
+	switch (optname) {
+	case L2CAP_OPTIONS:
+		if (sk->sk_state == BT_CONNECTED) {
+			err = -EINVAL;
+			break;
+		}
+
+		opts.imtu     = chan->imtu;
+		opts.omtu     = chan->omtu;
+		opts.flush_to = chan->flush_to;
+		opts.mode     = chan->mode;
+		opts.fcs      = chan->fcs;
+		opts.max_tx   = chan->max_tx;
+		opts.txwin_size = chan->tx_win;
+
+		len = min_t(unsigned int, sizeof(opts), optlen);
+		if (copy_from_user((char *) &opts, optval, len)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (opts.txwin_size > L2CAP_DEFAULT_EXT_WINDOW) {
+			err = -EINVAL;
+			break;
+		}
+
+		chan->mode = opts.mode;
+		switch (chan->mode) {
+		case L2CAP_MODE_BASIC:
+			clear_bit(CONF_STATE2_DEVICE, &chan->conf_state);
+			break;
+		case L2CAP_MODE_ERTM:
+		case L2CAP_MODE_STREAMING:
+			if (!disable_ertm)
+				break;
+			/* fall through */
+		default:
+			err = -EINVAL;
+			break;
+		}
+
+		chan->imtu = opts.imtu;
+		chan->omtu = opts.omtu;
+		chan->fcs  = opts.fcs;
+		chan->max_tx = opts.max_tx;
+		chan->tx_win = opts.txwin_size;
+		break;
+
+	case L2CAP_LM:
+		if (get_user(opt, (u32 __user *) optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (opt & L2CAP_LM_AUTH)
+			chan->sec_level = BT_SECURITY_LOW;
+		if (opt & L2CAP_LM_ENCRYPT)
+			chan->sec_level = BT_SECURITY_MEDIUM;
+		if (opt & L2CAP_LM_SECURE)
+			chan->sec_level = BT_SECURITY_HIGH;
+
+		if (opt & L2CAP_LM_MASTER)
+			set_bit(FLAG_ROLE_SWITCH, &chan->flags);
+		else
+			clear_bit(FLAG_ROLE_SWITCH, &chan->flags);
+
+		if (opt & L2CAP_LM_RELIABLE)
+			set_bit(FLAG_FORCE_RELIABLE, &chan->flags);
+		else
+			clear_bit(FLAG_FORCE_RELIABLE, &chan->flags);
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	struct bt_security sec;
+	struct bt_power pwr;
+	struct l2cap_conn *conn;
+	int len, err = 0;
+	u32 opt;
+
+	BT_DBG("sk %p", sk);
+
+	if (level == SOL_L2CAP)
+		return l2cap_sock_setsockopt_old(sock, optname, optval, optlen);
+
+	if (level != SOL_BLUETOOTH)
+		return -ENOPROTOOPT;
+
+	lock_sock(sk);
+
+	switch (optname) {
+	case BT_SECURITY:
+		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
+					chan->chan_type != L2CAP_CHAN_RAW) {
+			err = -EINVAL;
+			break;
+		}
+
+		sec.level = BT_SECURITY_LOW;
+
+		len = min_t(unsigned int, sizeof(sec), optlen);
+		if (copy_from_user((char *) &sec, optval, len)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (sec.level < BT_SECURITY_LOW ||
+					sec.level > BT_SECURITY_HIGH) {
+			err = -EINVAL;
+			break;
+		}
+
+		chan->sec_level = sec.level;
+
+		if (!chan->conn)
+			break;
+
+		conn = chan->conn;
+
+		/*change security for LE channels */
+		if (chan->scid == L2CAP_CID_LE_DATA) {
+			if (!conn->hcon->out) {
+				err = -EINVAL;
+				break;
+			}
+
+			if (smp_conn_security(conn, sec.level))
+				break;
+			sk->sk_state = BT_CONFIG;
+			chan->state = BT_CONFIG;
+
+		/* or for ACL link */
+		} else if ((sk->sk_state == BT_CONNECT2 &&
+			   bt_sk(sk)->defer_setup) ||
+			   sk->sk_state == BT_CONNECTED) {
+			if (!l2cap_chan_check_security(chan))
+				bt_sk(sk)->suspended = true;
+			else
+				sk->sk_state_change(sk);
+		}
+		else {
+			err = -EINVAL;
+		}
+		break;
+
+	case BT_DEFER_SETUP:
+		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (get_user(opt, (u32 __user *) optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		bt_sk(sk)->defer_setup = opt;
+		break;
+
+	case BT_FLUSHABLE:
+		if (get_user(opt, (u32 __user *) optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (opt > BT_FLUSHABLE_ON) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (opt == BT_FLUSHABLE_OFF) {
+			struct l2cap_conn *conn = chan->conn;
+			/* proceed further only when we have l2cap_conn and
+			   No Flush support in the LM */
+			if (!conn || !lmp_no_flush_capable(conn->hcon->hdev)) {
+				err = -EINVAL;
+				break;
+			}
+		}
+
+		if (opt)
+			set_bit(FLAG_FLUSHABLE, &chan->flags);
+		else
+			clear_bit(FLAG_FLUSHABLE, &chan->flags);
+		break;
+
+	case BT_POWER:
+		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED &&
+					chan->chan_type != L2CAP_CHAN_RAW) {
+			err = -EINVAL;
+			break;
+		}
+
+		pwr.force_active = BT_POWER_FORCE_ACTIVE_ON;
+
+		len = min_t(unsigned int, sizeof(pwr), optlen);
+		if (copy_from_user((char *) &pwr, optval, len)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (pwr.force_active)
+			set_bit(FLAG_FORCE_ACTIVE, &chan->flags);
+		else
+			clear_bit(FLAG_FORCE_ACTIVE, &chan->flags);
+		break;
+
+	case BT_CHANNEL_POLICY:
+		if (!enable_hs) {
+			err = -ENOPROTOOPT;
+			break;
+		}
+
+		if (get_user(opt, (u32 __user *) optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (opt > BT_CHANNEL_POLICY_AMP_PREFERRED) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (chan->mode != L2CAP_MODE_ERTM &&
+				chan->mode != L2CAP_MODE_STREAMING) {
+			err = -EOPNOTSUPP;
+			break;
+		}
+
+		chan->chan_policy = (u8) opt;
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	int err;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	err = sock_error(sk);
+	if (err)
+		return err;
+
+	if (msg->msg_flags & MSG_OOB)
+		return -EOPNOTSUPP;
+
+	l2cap_chan_lock(chan);
+
+	if (sk->sk_state != BT_CONNECTED) {
+		l2cap_chan_unlock(chan);
+		return -ENOTCONN;
+	}
+
+	err = l2cap_chan_send(chan, msg, len, sk->sk_priority);
+	l2cap_chan_unlock(chan);
+
+	return err;
+}
+
+static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_pinfo *pi = l2cap_pi(sk);
+	int err;
+
+	lock_sock(sk);
+
+	if (sk->sk_state == BT_CONNECT2 && bt_sk(sk)->defer_setup) {
+		sk->sk_state = BT_CONFIG;
+		pi->chan->state = BT_CONFIG;
+
+		__l2cap_connect_rsp_defer(pi->chan);
+		release_sock(sk);
+		return 0;
+	}
+
+	release_sock(sk);
+
+	if (sock->type == SOCK_STREAM)
+		err = bt_sock_stream_recvmsg(iocb, sock, msg, len, flags);
+	else
+		err = bt_sock_recvmsg(iocb, sock, msg, len, flags);
+
+	if (pi->chan->mode != L2CAP_MODE_ERTM)
+		return err;
+
+	/* Attempt to put pending rx data in the socket buffer */
+
+	lock_sock(sk);
+
+	if (!test_bit(CONN_LOCAL_BUSY, &pi->chan->conn_state))
+		goto done;
+
+	if (pi->rx_busy_skb) {
+		if (!sock_queue_rcv_skb(sk, pi->rx_busy_skb))
+			pi->rx_busy_skb = NULL;
+		else
+			goto done;
+	}
+
+	/* Restore data flow when half of the receive buffer is
+	 * available.  This avoids resending large numbers of
+	 * frames.
+	 */
+	if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf >> 1)
+		l2cap_chan_busy(pi->chan, 0);
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+/* Kill socket (only if zapped and orphan)
+ * Must be called on unlocked socket.
+ */
+static void l2cap_sock_kill(struct sock *sk)
+{
+	if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket ||
+					sock_flag(sk, SOCK_DEAD))
+		return;
+
+	BT_DBG("sk %p state %s", sk, state_to_string(sk->sk_state));
+
+	/* Kill poor orphan */
+
+	l2cap_chan_destroy(l2cap_pi(sk)->chan);
+	sock_set_flag(sk, SOCK_DEAD);
+	sock_put(sk);
+}
+
+static int l2cap_sock_shutdown(struct socket *sock, int how)
+{
+	struct sock *sk = sock->sk;
+	struct l2cap_chan *chan;
+	struct l2cap_conn *conn;
+	int err = 0;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	chan = l2cap_pi(sk)->chan;
+	conn = chan->conn;
+
+	if (conn)
+		mutex_lock(&conn->chan_lock);
+
+	l2cap_chan_lock(chan);
+	lock_sock(sk);
+
+	if (!sk->sk_shutdown) {
+		if (chan->mode == L2CAP_MODE_ERTM)
+			err = __l2cap_wait_ack(sk);
+
+		sk->sk_shutdown = SHUTDOWN_MASK;
+
+		release_sock(sk);
+		l2cap_chan_close(chan, 0);
+		lock_sock(sk);
+
+		if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
+			err = bt_sock_wait_state(sk, BT_CLOSED,
+							sk->sk_lingertime);
+	}
+
+	if (!err && sk->sk_err)
+		err = -sk->sk_err;
+
+	release_sock(sk);
+	l2cap_chan_unlock(chan);
+
+	if (conn)
+		mutex_unlock(&conn->chan_lock);
+
+	return err;
+}
+
+static int l2cap_sock_release(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+	int err;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	err = l2cap_sock_shutdown(sock, 2);
+
+	sock_orphan(sk);
+	l2cap_sock_kill(sk);
+	return err;
+}
+
+static struct l2cap_chan *l2cap_sock_new_connection_cb(void *data)
+{
+	struct sock *sk, *parent = data;
+
+	sk = l2cap_sock_alloc(sock_net(parent), NULL, BTPROTO_L2CAP,
+								GFP_ATOMIC);
+	if (!sk)
+		return NULL;
+
+	bt_sock_reclassify_lock(sk, BTPROTO_L2CAP);
+
+	l2cap_sock_init(sk, parent);
+
+	return l2cap_pi(sk)->chan;
+}
+
+static int l2cap_sock_recv_cb(void *data, struct sk_buff *skb)
+{
+	int err;
+	struct sock *sk = data;
+	struct l2cap_pinfo *pi = l2cap_pi(sk);
+
+	lock_sock(sk);
+
+	if (pi->rx_busy_skb) {
+		err = -ENOMEM;
+		goto done;
+	}
+
+	err = sock_queue_rcv_skb(sk, skb);
+
+	/* For ERTM, handle one skb that doesn't fit into the recv
+	 * buffer.  This is important to do because the data frames
+	 * have already been acked, so the skb cannot be discarded.
+	 *
+	 * Notify the l2cap core that the buffer is full, so the
+	 * LOCAL_BUSY state is entered and no more frames are
+	 * acked and reassembled until there is buffer space
+	 * available.
+	 */
+	if (err < 0 && pi->chan->mode == L2CAP_MODE_ERTM) {
+		pi->rx_busy_skb = skb;
+		l2cap_chan_busy(pi->chan, 1);
+		err = 0;
+	}
+
+done:
+	release_sock(sk);
+
+	return err;
+}
+
+static void l2cap_sock_close_cb(void *data)
+{
+	struct sock *sk = data;
+
+	l2cap_sock_kill(sk);
+}
+
+static void l2cap_sock_state_change_cb(void *data, int state)
+{
+	struct sock *sk = data;
+
+	sk->sk_state = state;
+}
+
+static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan,
+					       unsigned long len, int nb,
+					       int *err)
+{
+	struct sk_buff *skb;
+
+	l2cap_chan_unlock(chan);
+
+	skb = bt_skb_send_alloc(chan->sk, len, nb, err);
+
+	l2cap_chan_lock(chan);
+
+	return skb;
+}
+
+static struct l2cap_ops l2cap_chan_ops = {
+	.name		= "L2CAP Socket Interface",
+	.new_connection	= l2cap_sock_new_connection_cb,
+	.recv		= l2cap_sock_recv_cb,
+	.close		= l2cap_sock_close_cb,
+	.state_change	= l2cap_sock_state_change_cb,
+	.alloc_skb	= l2cap_sock_alloc_skb_cb,
+};
+
+static void l2cap_sock_destruct(struct sock *sk)
+{
+	BT_DBG("sk %p", sk);
+
+	if (l2cap_pi(sk)->rx_busy_skb) {
+		kfree_skb(l2cap_pi(sk)->rx_busy_skb);
+		l2cap_pi(sk)->rx_busy_skb = NULL;
+	}
+
+	skb_queue_purge(&sk->sk_receive_queue);
+	skb_queue_purge(&sk->sk_write_queue);
+}
+
+static void l2cap_sock_init(struct sock *sk, struct sock *parent)
+{
+	struct l2cap_pinfo *pi = l2cap_pi(sk);
+	struct l2cap_chan *chan = pi->chan;
+
+	BT_DBG("sk %p", sk);
+
+	if (parent) {
+		struct l2cap_chan *pchan = l2cap_pi(parent)->chan;
+
+		sk->sk_type = parent->sk_type;
+		bt_sk(sk)->defer_setup = bt_sk(parent)->defer_setup;
+
+		chan->chan_type = pchan->chan_type;
+		chan->imtu = pchan->imtu;
+		chan->omtu = pchan->omtu;
+		chan->conf_state = pchan->conf_state;
+		chan->mode = pchan->mode;
+		chan->fcs  = pchan->fcs;
+		chan->max_tx = pchan->max_tx;
+		chan->tx_win = pchan->tx_win;
+		chan->tx_win_max = pchan->tx_win_max;
+		chan->sec_level = pchan->sec_level;
+		chan->flags = pchan->flags;
+
+		security_sk_clone(parent, sk);
+	} else {
+
+		switch (sk->sk_type) {
+		case SOCK_RAW:
+			chan->chan_type = L2CAP_CHAN_RAW;
+			break;
+		case SOCK_DGRAM:
+			chan->chan_type = L2CAP_CHAN_CONN_LESS;
+			break;
+		case SOCK_SEQPACKET:
+		case SOCK_STREAM:
+			chan->chan_type = L2CAP_CHAN_CONN_ORIENTED;
+			break;
+		}
+
+		chan->imtu = L2CAP_DEFAULT_MTU;
+		chan->omtu = 0;
+		if (!disable_ertm && sk->sk_type == SOCK_STREAM) {
+			chan->mode = L2CAP_MODE_ERTM;
+			set_bit(CONF_STATE2_DEVICE, &chan->conf_state);
+		} else {
+			chan->mode = L2CAP_MODE_BASIC;
+		}
+		chan->max_tx = L2CAP_DEFAULT_MAX_TX;
+		chan->fcs  = L2CAP_FCS_CRC16;
+		chan->tx_win = L2CAP_DEFAULT_TX_WINDOW;
+		chan->tx_win_max = L2CAP_DEFAULT_TX_WINDOW;
+		chan->sec_level = BT_SECURITY_LOW;
+		chan->flags = 0;
+		set_bit(FLAG_FORCE_ACTIVE, &chan->flags);
+	}
+
+	/* Default config options */
+	chan->flush_to = L2CAP_DEFAULT_FLUSH_TO;
+
+	chan->data = sk;
+	chan->ops = &l2cap_chan_ops;
+}
+
+static struct proto l2cap_proto = {
+	.name		= "L2CAP",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct l2cap_pinfo)
+};
+
+static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
+{
+	struct sock *sk;
+	struct l2cap_chan *chan;
+
+	sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto);
+	if (!sk)
+		return NULL;
+
+	sock_init_data(sock, sk);
+	INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
+
+	sk->sk_destruct = l2cap_sock_destruct;
+	sk->sk_sndtimeo = L2CAP_CONN_TIMEOUT;
+
+	sock_reset_flag(sk, SOCK_ZAPPED);
+
+	sk->sk_protocol = proto;
+	sk->sk_state = BT_OPEN;
+
+	chan = l2cap_chan_create(sk);
+	if (!chan) {
+		l2cap_sock_kill(sk);
+		return NULL;
+	}
+
+	l2cap_pi(sk)->chan = chan;
+
+	return sk;
+}
+
+static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol,
+			     int kern)
+{
+	struct sock *sk;
+
+	BT_DBG("sock %p", sock);
+
+	sock->state = SS_UNCONNECTED;
+
+	if (sock->type != SOCK_SEQPACKET && sock->type != SOCK_STREAM &&
+			sock->type != SOCK_DGRAM && sock->type != SOCK_RAW)
+		return -ESOCKTNOSUPPORT;
+
+	if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
+		return -EPERM;
+
+	sock->ops = &l2cap_sock_ops;
+
+	sk = l2cap_sock_alloc(net, sock, protocol, GFP_ATOMIC);
+	if (!sk)
+		return -ENOMEM;
+
+	l2cap_sock_init(sk, NULL);
+	return 0;
+}
+
+static const struct proto_ops l2cap_sock_ops = {
+	.family		= PF_BLUETOOTH,
+	.owner		= THIS_MODULE,
+	.release	= l2cap_sock_release,
+	.bind		= l2cap_sock_bind,
+	.connect	= l2cap_sock_connect,
+	.listen		= l2cap_sock_listen,
+	.accept		= l2cap_sock_accept,
+	.getname	= l2cap_sock_getname,
+	.sendmsg	= l2cap_sock_sendmsg,
+	.recvmsg	= l2cap_sock_recvmsg,
+	.poll		= bt_sock_poll,
+	.ioctl		= bt_sock_ioctl,
+	.mmap		= sock_no_mmap,
+	.socketpair	= sock_no_socketpair,
+	.shutdown	= l2cap_sock_shutdown,
+	.setsockopt	= l2cap_sock_setsockopt,
+	.getsockopt	= l2cap_sock_getsockopt
+};
+
+static const struct net_proto_family l2cap_sock_family_ops = {
+	.family	= PF_BLUETOOTH,
+	.owner	= THIS_MODULE,
+	.create	= l2cap_sock_create,
+};
+
+int __init l2cap_init_sockets(void)
+{
+	int err;
+
+	err = proto_register(&l2cap_proto, 0);
+	if (err < 0)
+		return err;
+
+	err = bt_sock_register(BTPROTO_L2CAP, &l2cap_sock_family_ops);
+	if (err < 0)
+		goto error;
+
+	BT_INFO("L2CAP socket layer initialized");
+
+	return 0;
+
+error:
+	BT_ERR("L2CAP socket registration failed");
+	proto_unregister(&l2cap_proto);
+	return err;
+}
+
+void l2cap_cleanup_sockets(void)
+{
+	if (bt_sock_unregister(BTPROTO_L2CAP) < 0)
+		BT_ERR("L2CAP socket unregistration failed");
+
+	proto_unregister(&l2cap_proto);
+}
diff --git a/net/bluetooth_tizen/lib.c b/net/bluetooth_tizen/lib.c
new file mode 100644
index 0000000..5066288
--- /dev/null
+++ b/net/bluetooth_tizen/lib.c
@@ -0,0 +1,192 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth kernel library. */
+
+#define pr_fmt(fmt) "Bluetooth: " fmt
+
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
+#include <asm/errno.h>
+
+#include <net/bluetooth/bluetooth.h>
+
+void baswap(bdaddr_t *dst, bdaddr_t *src)
+{
+	unsigned char *d = (unsigned char *) dst;
+	unsigned char *s = (unsigned char *) src;
+	unsigned int i;
+
+	for (i = 0; i < 6; i++)
+		d[i] = s[5 - i];
+}
+EXPORT_SYMBOL(baswap);
+
+char *batostr(bdaddr_t *ba)
+{
+	static char str[2][18];
+	static int i = 1;
+
+	i ^= 1;
+	sprintf(str[i], "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X",
+		ba->b[5], ba->b[4], ba->b[3],
+		ba->b[2], ba->b[1], ba->b[0]);
+
+	return str[i];
+}
+EXPORT_SYMBOL(batostr);
+
+/* Bluetooth error codes to Unix errno mapping */
+int bt_to_errno(__u16 code)
+{
+	switch (code) {
+	case 0:
+		return 0;
+
+	case 0x01:
+		return EBADRQC;
+
+	case 0x02:
+		return ENOTCONN;
+
+	case 0x03:
+		return EIO;
+
+	case 0x04:
+		return EHOSTDOWN;
+
+	case 0x05:
+		return EACCES;
+
+	case 0x06:
+		return EBADE;
+
+	case 0x07:
+		return ENOMEM;
+
+	case 0x08:
+		return ETIMEDOUT;
+
+	case 0x09:
+		return EMLINK;
+
+	case 0x0a:
+		return EMLINK;
+
+	case 0x0b:
+		return EALREADY;
+
+	case 0x0c:
+		return EBUSY;
+
+	case 0x0d:
+	case 0x0e:
+	case 0x0f:
+		return ECONNREFUSED;
+
+	case 0x10:
+		return ETIMEDOUT;
+
+	case 0x11:
+	case 0x27:
+	case 0x29:
+	case 0x20:
+		return EOPNOTSUPP;
+
+	case 0x12:
+		return EINVAL;
+
+	case 0x13:
+	case 0x14:
+	case 0x15:
+		return ECONNRESET;
+
+	case 0x16:
+		return ECONNABORTED;
+
+	case 0x17:
+		return ELOOP;
+
+	case 0x18:
+		return EACCES;
+
+	case 0x1a:
+		return EPROTONOSUPPORT;
+
+	case 0x1b:
+		return ECONNREFUSED;
+
+	case 0x19:
+	case 0x1e:
+	case 0x23:
+	case 0x24:
+	case 0x25:
+		return EPROTO;
+
+	default:
+		return ENOSYS;
+	}
+}
+EXPORT_SYMBOL(bt_to_errno);
+
+int bt_info(const char *format, ...)
+{
+	struct va_format vaf;
+	va_list args;
+	int r;
+
+	va_start(args, format);
+
+	vaf.fmt = format;
+	vaf.va = &args;
+
+	r = pr_info("%pV", &vaf);
+
+	va_end(args);
+
+	return r;
+}
+EXPORT_SYMBOL(bt_info);
+
+int bt_err(const char *format, ...)
+{
+	struct va_format vaf;
+	va_list args;
+	int r;
+
+	va_start(args, format);
+
+	vaf.fmt = format;
+	vaf.va = &args;
+
+	r = pr_err("%pV", &vaf);
+
+	va_end(args);
+
+	return r;
+}
+EXPORT_SYMBOL(bt_err);
diff --git a/net/bluetooth_tizen/mgmt.c b/net/bluetooth_tizen/mgmt.c
new file mode 100644
index 0000000..4bb03b1
--- /dev/null
+++ b/net/bluetooth_tizen/mgmt.c
@@ -0,0 +1,3599 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+
+   Copyright (C) 2010  Nokia Corporation
+   Copyright (C) 2011-2012 Intel Corporation
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth HCI Management interface */
+
+#include <linux/kernel.h>
+#include <linux/uaccess.h>
+#include <linux/module.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/mgmt.h>
+#include <net/bluetooth/smp.h>
+
+bool enable_hs;
+bool enable_le;
+
+#define MGMT_VERSION	1
+#define MGMT_REVISION	0
+
+static const u16 mgmt_commands[] = {
+	MGMT_OP_READ_INDEX_LIST,
+	MGMT_OP_READ_INFO,
+	MGMT_OP_SET_POWERED,
+	MGMT_OP_SET_DISCOVERABLE,
+	MGMT_OP_SET_CONNECTABLE,
+	MGMT_OP_SET_FAST_CONNECTABLE,
+	MGMT_OP_SET_PAIRABLE,
+	MGMT_OP_SET_LINK_SECURITY,
+	MGMT_OP_SET_SSP,
+	MGMT_OP_SET_HS,
+	MGMT_OP_SET_LE,
+	MGMT_OP_SET_DEV_CLASS,
+	MGMT_OP_SET_LOCAL_NAME,
+	MGMT_OP_ADD_UUID,
+	MGMT_OP_REMOVE_UUID,
+	MGMT_OP_LOAD_LINK_KEYS,
+	MGMT_OP_LOAD_LONG_TERM_KEYS,
+	MGMT_OP_DISCONNECT,
+	MGMT_OP_GET_CONNECTIONS,
+	MGMT_OP_PIN_CODE_REPLY,
+	MGMT_OP_PIN_CODE_NEG_REPLY,
+	MGMT_OP_SET_IO_CAPABILITY,
+	MGMT_OP_PAIR_DEVICE,
+	MGMT_OP_CANCEL_PAIR_DEVICE,
+	MGMT_OP_UNPAIR_DEVICE,
+	MGMT_OP_USER_CONFIRM_REPLY,
+	MGMT_OP_USER_CONFIRM_NEG_REPLY,
+	MGMT_OP_USER_PASSKEY_REPLY,
+	MGMT_OP_USER_PASSKEY_NEG_REPLY,
+	MGMT_OP_READ_LOCAL_OOB_DATA,
+	MGMT_OP_ADD_REMOTE_OOB_DATA,
+	MGMT_OP_REMOVE_REMOTE_OOB_DATA,
+	MGMT_OP_START_DISCOVERY,
+	MGMT_OP_STOP_DISCOVERY,
+	MGMT_OP_CONFIRM_NAME,
+	MGMT_OP_BLOCK_DEVICE,
+	MGMT_OP_UNBLOCK_DEVICE,
+};
+
+static const u16 mgmt_events[] = {
+	MGMT_EV_CONTROLLER_ERROR,
+	MGMT_EV_INDEX_ADDED,
+	MGMT_EV_INDEX_REMOVED,
+	MGMT_EV_NEW_SETTINGS,
+	MGMT_EV_CLASS_OF_DEV_CHANGED,
+	MGMT_EV_LOCAL_NAME_CHANGED,
+	MGMT_EV_NEW_LINK_KEY,
+	MGMT_EV_NEW_LONG_TERM_KEY,
+	MGMT_EV_DEVICE_CONNECTED,
+	MGMT_EV_DEVICE_DISCONNECTED,
+	MGMT_EV_CONNECT_FAILED,
+	MGMT_EV_PIN_CODE_REQUEST,
+	MGMT_EV_USER_CONFIRM_REQUEST,
+	MGMT_EV_USER_PASSKEY_REQUEST,
+	MGMT_EV_AUTH_FAILED,
+	MGMT_EV_DEVICE_FOUND,
+	MGMT_EV_DISCOVERING,
+	MGMT_EV_DEVICE_BLOCKED,
+	MGMT_EV_DEVICE_UNBLOCKED,
+	MGMT_EV_DEVICE_UNPAIRED,
+};
+
+/*
+ * These LE scan and inquiry parameters were chosen according to LE General
+ * Discovery Procedure specification.
+ */
+#define LE_SCAN_TYPE			0x01
+#define LE_SCAN_WIN			0x12
+#define LE_SCAN_INT			0x12
+#define LE_SCAN_TIMEOUT_LE_ONLY		10240	/* TGAP(gen_disc_scan_min) */
+#define LE_SCAN_TIMEOUT_BREDR_LE	5120	/* TGAP(100)/2 */
+
+#define INQUIRY_LEN_BREDR		0x08	/* TGAP(100) */
+#define INQUIRY_LEN_BREDR_LE		0x04	/* TGAP(100)/2 */
+
+#define CACHE_TIMEOUT	msecs_to_jiffies(2 * 1000)
+
+#define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \
+				!test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
+
+struct pending_cmd {
+	struct list_head list;
+	u16 opcode;
+	int index;
+	void *param;
+	struct sock *sk;
+	void *user_data;
+};
+
+/* HCI to MGMT error code conversion table */
+static u8 mgmt_status_table[] = {
+	MGMT_STATUS_SUCCESS,
+	MGMT_STATUS_UNKNOWN_COMMAND,	/* Unknown Command */
+	MGMT_STATUS_NOT_CONNECTED,	/* No Connection */
+	MGMT_STATUS_FAILED,		/* Hardware Failure */
+	MGMT_STATUS_CONNECT_FAILED,	/* Page Timeout */
+	MGMT_STATUS_AUTH_FAILED,	/* Authentication Failed */
+	MGMT_STATUS_NOT_PAIRED,		/* PIN or Key Missing */
+	MGMT_STATUS_NO_RESOURCES,	/* Memory Full */
+	MGMT_STATUS_TIMEOUT,		/* Connection Timeout */
+	MGMT_STATUS_NO_RESOURCES,	/* Max Number of Connections */
+	MGMT_STATUS_NO_RESOURCES,	/* Max Number of SCO Connections */
+	MGMT_STATUS_ALREADY_CONNECTED,	/* ACL Connection Exists */
+	MGMT_STATUS_BUSY,		/* Command Disallowed */
+	MGMT_STATUS_NO_RESOURCES,	/* Rejected Limited Resources */
+	MGMT_STATUS_REJECTED,		/* Rejected Security */
+	MGMT_STATUS_REJECTED,		/* Rejected Personal */
+	MGMT_STATUS_TIMEOUT,		/* Host Timeout */
+	MGMT_STATUS_NOT_SUPPORTED,	/* Unsupported Feature */
+	MGMT_STATUS_INVALID_PARAMS,	/* Invalid Parameters */
+	MGMT_STATUS_DISCONNECTED,	/* OE User Ended Connection */
+	MGMT_STATUS_NO_RESOURCES,	/* OE Low Resources */
+	MGMT_STATUS_DISCONNECTED,	/* OE Power Off */
+	MGMT_STATUS_DISCONNECTED,	/* Connection Terminated */
+	MGMT_STATUS_BUSY,		/* Repeated Attempts */
+	MGMT_STATUS_REJECTED,		/* Pairing Not Allowed */
+	MGMT_STATUS_FAILED,		/* Unknown LMP PDU */
+	MGMT_STATUS_NOT_SUPPORTED,	/* Unsupported Remote Feature */
+	MGMT_STATUS_REJECTED,		/* SCO Offset Rejected */
+	MGMT_STATUS_REJECTED,		/* SCO Interval Rejected */
+	MGMT_STATUS_REJECTED,		/* Air Mode Rejected */
+	MGMT_STATUS_INVALID_PARAMS,	/* Invalid LMP Parameters */
+	MGMT_STATUS_FAILED,		/* Unspecified Error */
+	MGMT_STATUS_NOT_SUPPORTED,	/* Unsupported LMP Parameter Value */
+	MGMT_STATUS_FAILED,		/* Role Change Not Allowed */
+	MGMT_STATUS_TIMEOUT,		/* LMP Response Timeout */
+	MGMT_STATUS_FAILED,		/* LMP Error Transaction Collision */
+	MGMT_STATUS_FAILED,		/* LMP PDU Not Allowed */
+	MGMT_STATUS_REJECTED,		/* Encryption Mode Not Accepted */
+	MGMT_STATUS_FAILED,		/* Unit Link Key Used */
+	MGMT_STATUS_NOT_SUPPORTED,	/* QoS Not Supported */
+	MGMT_STATUS_TIMEOUT,		/* Instant Passed */
+	MGMT_STATUS_NOT_SUPPORTED,	/* Pairing Not Supported */
+	MGMT_STATUS_FAILED,		/* Transaction Collision */
+	MGMT_STATUS_INVALID_PARAMS,	/* Unacceptable Parameter */
+	MGMT_STATUS_REJECTED,		/* QoS Rejected */
+	MGMT_STATUS_NOT_SUPPORTED,	/* Classification Not Supported */
+	MGMT_STATUS_REJECTED,		/* Insufficient Security */
+	MGMT_STATUS_INVALID_PARAMS,	/* Parameter Out Of Range */
+	MGMT_STATUS_BUSY,		/* Role Switch Pending */
+	MGMT_STATUS_FAILED,		/* Slot Violation */
+	MGMT_STATUS_FAILED,		/* Role Switch Failed */
+	MGMT_STATUS_INVALID_PARAMS,	/* EIR Too Large */
+	MGMT_STATUS_NOT_SUPPORTED,	/* Simple Pairing Not Supported */
+	MGMT_STATUS_BUSY,		/* Host Busy Pairing */
+	MGMT_STATUS_REJECTED,		/* Rejected, No Suitable Channel */
+	MGMT_STATUS_BUSY,		/* Controller Busy */
+	MGMT_STATUS_INVALID_PARAMS,	/* Unsuitable Connection Interval */
+	MGMT_STATUS_TIMEOUT,		/* Directed Advertising Timeout */
+	MGMT_STATUS_AUTH_FAILED,	/* Terminated Due to MIC Failure */
+	MGMT_STATUS_CONNECT_FAILED,	/* Connection Establishment Failed */
+	MGMT_STATUS_CONNECT_FAILED,	/* MAC Connection Failed */
+};
+
+static u8 mgmt_status(u8 hci_status)
+{
+	if (hci_status < ARRAY_SIZE(mgmt_status_table))
+		return mgmt_status_table[hci_status];
+
+	return MGMT_STATUS_FAILED;
+}
+
+static int cmd_status(struct sock *sk, u16 index, u16 cmd, u8 status)
+{
+	struct sk_buff *skb;
+	struct mgmt_hdr *hdr;
+	struct mgmt_ev_cmd_status *ev;
+	int err;
+
+	BT_DBG("sock %p, index %u, cmd %u, status %u", sk, index, cmd, status);
+
+	skb = alloc_skb(sizeof(*hdr) + sizeof(*ev), GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+
+	hdr = (void *) skb_put(skb, sizeof(*hdr));
+
+	hdr->opcode = cpu_to_le16(MGMT_EV_CMD_STATUS);
+	hdr->index = cpu_to_le16(index);
+	hdr->len = cpu_to_le16(sizeof(*ev));
+
+	ev = (void *) skb_put(skb, sizeof(*ev));
+	ev->status = status;
+	put_unaligned_le16(cmd, &ev->opcode);
+
+	err = sock_queue_rcv_skb(sk, skb);
+	if (err < 0)
+		kfree_skb(skb);
+
+	return err;
+}
+
+static int cmd_complete(struct sock *sk, u16 index, u16 cmd, u8 status,
+			void *rp, size_t rp_len)
+{
+	struct sk_buff *skb;
+	struct mgmt_hdr *hdr;
+	struct mgmt_ev_cmd_complete *ev;
+	int err;
+
+	BT_DBG("sock %p", sk);
+
+	skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + rp_len, GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+
+	hdr = (void *) skb_put(skb, sizeof(*hdr));
+
+	hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
+	hdr->index = cpu_to_le16(index);
+	hdr->len = cpu_to_le16(sizeof(*ev) + rp_len);
+
+	ev = (void *) skb_put(skb, sizeof(*ev) + rp_len);
+	put_unaligned_le16(cmd, &ev->opcode);
+	ev->status = status;
+
+	if (rp)
+		memcpy(ev->data, rp, rp_len);
+
+	err = sock_queue_rcv_skb(sk, skb);
+	if (err < 0)
+		kfree_skb(skb);
+
+	return err;
+}
+
+static int read_version(struct sock *sk, struct hci_dev *hdev, void *data,
+			u16 data_len)
+{
+	struct mgmt_rp_read_version rp;
+
+	BT_DBG("sock %p", sk);
+
+	rp.version = MGMT_VERSION;
+	put_unaligned_le16(MGMT_REVISION, &rp.revision);
+
+	return cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_VERSION, 0, &rp,
+			    sizeof(rp));
+}
+
+static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
+			 u16 data_len)
+{
+	struct mgmt_rp_read_commands *rp;
+	u16 num_commands = ARRAY_SIZE(mgmt_commands);
+	u16 num_events = ARRAY_SIZE(mgmt_events);
+	u16 *opcode;
+	size_t rp_size;
+	int i, err;
+
+	BT_DBG("sock %p", sk);
+
+	rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16));
+
+	rp = kmalloc(rp_size, GFP_KERNEL);
+	if (!rp)
+		return -ENOMEM;
+
+	put_unaligned_le16(num_commands, &rp->num_commands);
+	put_unaligned_le16(num_events, &rp->num_events);
+
+	for (i = 0, opcode = rp->opcodes; i < num_commands; i++, opcode++)
+		put_unaligned_le16(mgmt_commands[i], opcode);
+
+	for (i = 0; i < num_events; i++, opcode++)
+		put_unaligned_le16(mgmt_events[i], opcode);
+
+	err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0, rp,
+			   rp_size);
+	kfree(rp);
+
+	return err;
+}
+
+static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
+			   u16 data_len)
+{
+	struct mgmt_rp_read_index_list *rp;
+	struct list_head *p;
+	struct hci_dev *d;
+	size_t rp_len;
+	u16 count;
+	int i, err;
+
+	BT_DBG("sock %p", sk);
+
+	read_lock(&hci_dev_list_lock);
+
+	count = 0;
+	list_for_each(p, &hci_dev_list) {
+		count++;
+	}
+
+	rp_len = sizeof(*rp) + (2 * count);
+	rp = kmalloc(rp_len, GFP_ATOMIC);
+	if (!rp) {
+		read_unlock(&hci_dev_list_lock);
+		return -ENOMEM;
+	}
+
+	put_unaligned_le16(count, &rp->num_controllers);
+
+	i = 0;
+	list_for_each_entry(d, &hci_dev_list, list) {
+		if (test_bit(HCI_SETUP, &d->dev_flags))
+			continue;
+
+		put_unaligned_le16(d->id, &rp->index[i++]);
+		BT_DBG("Added hci%u", d->id);
+	}
+
+	read_unlock(&hci_dev_list_lock);
+
+	err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST, 0, rp,
+			   rp_len);
+
+	kfree(rp);
+
+	return err;
+}
+
+static u32 get_supported_settings(struct hci_dev *hdev)
+{
+	u32 settings = 0;
+
+	settings |= MGMT_SETTING_POWERED;
+	settings |= MGMT_SETTING_CONNECTABLE;
+	settings |= MGMT_SETTING_FAST_CONNECTABLE;
+	settings |= MGMT_SETTING_DISCOVERABLE;
+	settings |= MGMT_SETTING_PAIRABLE;
+
+	if (hdev->features[6] & LMP_SIMPLE_PAIR)
+		settings |= MGMT_SETTING_SSP;
+
+	if (!(hdev->features[4] & LMP_NO_BREDR)) {
+		settings |= MGMT_SETTING_BREDR;
+		settings |= MGMT_SETTING_LINK_SECURITY;
+	}
+
+	if (enable_hs)
+		settings |= MGMT_SETTING_HS;
+
+	if (enable_le) {
+		if (hdev->features[4] & LMP_LE)
+			settings |= MGMT_SETTING_LE;
+	}
+
+	return settings;
+}
+
+static u32 get_current_settings(struct hci_dev *hdev)
+{
+	u32 settings = 0;
+
+	if (hdev_is_powered(hdev))
+		settings |= MGMT_SETTING_POWERED;
+
+	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+		settings |= MGMT_SETTING_CONNECTABLE;
+
+	if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
+		settings |= MGMT_SETTING_DISCOVERABLE;
+
+	if (test_bit(HCI_PAIRABLE, &hdev->dev_flags))
+		settings |= MGMT_SETTING_PAIRABLE;
+
+	if (!(hdev->features[4] & LMP_NO_BREDR))
+		settings |= MGMT_SETTING_BREDR;
+
+	if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
+		settings |= MGMT_SETTING_LE;
+
+	if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
+		settings |= MGMT_SETTING_LINK_SECURITY;
+
+	if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
+		settings |= MGMT_SETTING_SSP;
+
+	if (test_bit(HCI_HS_ENABLED, &hdev->dev_flags))
+		settings |= MGMT_SETTING_HS;
+
+	return settings;
+}
+
+#define PNP_INFO_SVCLASS_ID		0x1200
+
+static u8 bluetooth_base_uuid[] = {
+			0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
+			0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+static u16 get_uuid16(u8 *uuid128)
+{
+	u32 val;
+	int i;
+
+	for (i = 0; i < 12; i++) {
+		if (bluetooth_base_uuid[i] != uuid128[i])
+			return 0;
+	}
+
+	memcpy(&val, &uuid128[12], 4);
+
+	val = le32_to_cpu(val);
+	if (val > 0xffff)
+		return 0;
+
+	return (u16) val;
+}
+
+static void create_eir(struct hci_dev *hdev, u8 *data)
+{
+	u8 *ptr = data;
+	u16 eir_len = 0;
+	u16 uuid16_list[HCI_MAX_EIR_LENGTH / sizeof(u16)];
+	int i, truncated = 0;
+	struct bt_uuid *uuid;
+	size_t name_len;
+
+	name_len = strlen(hdev->dev_name);
+
+	if (name_len > 0) {
+		/* EIR Data type */
+		if (name_len > 48) {
+			name_len = 48;
+			ptr[1] = EIR_NAME_SHORT;
+		} else
+			ptr[1] = EIR_NAME_COMPLETE;
+
+		/* EIR Data length */
+		ptr[0] = name_len + 1;
+
+		memcpy(ptr + 2, hdev->dev_name, name_len);
+
+		eir_len += (name_len + 2);
+		ptr += (name_len + 2);
+	}
+
+	memset(uuid16_list, 0, sizeof(uuid16_list));
+
+	/* Group all UUID16 types */
+	list_for_each_entry(uuid, &hdev->uuids, list) {
+		u16 uuid16;
+
+		uuid16 = get_uuid16(uuid->uuid);
+		if (uuid16 == 0)
+			return;
+
+		if (uuid16 < 0x1100)
+			continue;
+
+		if (uuid16 == PNP_INFO_SVCLASS_ID)
+			continue;
+
+		/* Stop if not enough space to put next UUID */
+		if (eir_len + 2 + sizeof(u16) > HCI_MAX_EIR_LENGTH) {
+			truncated = 1;
+			break;
+		}
+
+		/* Check for duplicates */
+		for (i = 0; uuid16_list[i] != 0; i++)
+			if (uuid16_list[i] == uuid16)
+				break;
+
+		if (uuid16_list[i] == 0) {
+			uuid16_list[i] = uuid16;
+			eir_len += sizeof(u16);
+		}
+	}
+
+	if (uuid16_list[0] != 0) {
+		u8 *length = ptr;
+
+		/* EIR Data type */
+		ptr[1] = truncated ? EIR_UUID16_SOME : EIR_UUID16_ALL;
+
+		ptr += 2;
+		eir_len += 2;
+
+		for (i = 0; uuid16_list[i] != 0; i++) {
+			*ptr++ = (uuid16_list[i] & 0x00ff);
+			*ptr++ = (uuid16_list[i] & 0xff00) >> 8;
+		}
+
+		/* EIR Data length */
+		*length = (i * sizeof(u16)) + 1;
+	}
+}
+
+static int update_eir(struct hci_dev *hdev)
+{
+	struct hci_cp_write_eir cp;
+
+	if (!hdev_is_powered(hdev))
+		return 0;
+
+	if (!(hdev->features[6] & LMP_EXT_INQ))
+		return 0;
+
+	if (!test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
+		return 0;
+
+	if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
+		return 0;
+
+	memset(&cp, 0, sizeof(cp));
+
+	create_eir(hdev, cp.data);
+
+	if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0)
+		return 0;
+
+	memcpy(hdev->eir, cp.data, sizeof(cp.data));
+
+	return hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
+}
+
+static u8 get_service_classes(struct hci_dev *hdev)
+{
+	struct bt_uuid *uuid;
+	u8 val = 0;
+
+	list_for_each_entry(uuid, &hdev->uuids, list)
+		val |= uuid->svc_hint;
+
+	return val;
+}
+
+static int update_class(struct hci_dev *hdev)
+{
+	u8 cod[3];
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!hdev_is_powered(hdev))
+		return 0;
+
+	if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
+		return 0;
+
+	cod[0] = hdev->minor_class;
+	cod[1] = hdev->major_class;
+	cod[2] = get_service_classes(hdev);
+
+	if (memcmp(cod, hdev->dev_class, 3) == 0)
+		return 0;
+
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod);
+	if (err == 0)
+		set_bit(HCI_PENDING_CLASS, &hdev->dev_flags);
+
+	return err;
+}
+
+static void service_cache_off(struct work_struct *work)
+{
+	struct hci_dev *hdev = container_of(work, struct hci_dev,
+					    service_cache.work);
+
+	if (!test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
+		return;
+
+	hci_dev_lock(hdev);
+
+	update_eir(hdev);
+	update_class(hdev);
+
+	hci_dev_unlock(hdev);
+}
+
+static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev)
+{
+	if (test_and_set_bit(HCI_MGMT, &hdev->dev_flags))
+		return;
+
+	INIT_DELAYED_WORK(&hdev->service_cache, service_cache_off);
+
+	/* Non-mgmt controlled devices get this bit set
+	 * implicitly so that pairing works for them, however
+	 * for mgmt we require user-space to explicitly enable
+	 * it
+	 */
+	clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
+}
+
+static int read_controller_info(struct sock *sk, struct hci_dev *hdev,
+				void *data, u16 data_len)
+{
+	struct mgmt_rp_read_info rp;
+
+	BT_DBG("sock %p %s", sk, hdev->name);
+
+	hci_dev_lock(hdev);
+
+	memset(&rp, 0, sizeof(rp));
+
+	bacpy(&rp.bdaddr, &hdev->bdaddr);
+
+	rp.version = hdev->hci_ver;
+
+	put_unaligned_le16(hdev->manufacturer, &rp.manufacturer);
+
+	rp.supported_settings = cpu_to_le32(get_supported_settings(hdev));
+	rp.current_settings = cpu_to_le32(get_current_settings(hdev));
+
+	memcpy(rp.dev_class, hdev->dev_class, 3);
+
+	memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
+	memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));
+
+	hci_dev_unlock(hdev);
+
+	return cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp,
+			    sizeof(rp));
+}
+
+static void mgmt_pending_free(struct pending_cmd *cmd)
+{
+	sock_put(cmd->sk);
+	kfree(cmd->param);
+	kfree(cmd);
+}
+
+static struct pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode,
+					    struct hci_dev *hdev, void *data,
+					    u16 len)
+{
+	struct pending_cmd *cmd;
+
+	cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC);
+	if (!cmd)
+		return NULL;
+
+	cmd->opcode = opcode;
+	cmd->index = hdev->id;
+
+	cmd->param = kmalloc(len, GFP_ATOMIC);
+	if (!cmd->param) {
+		kfree(cmd);
+		return NULL;
+	}
+
+	if (data)
+		memcpy(cmd->param, data, len);
+
+	cmd->sk = sk;
+	sock_hold(sk);
+
+	list_add(&cmd->list, &hdev->mgmt_pending);
+
+	return cmd;
+}
+
+static void mgmt_pending_foreach(u16 opcode, struct hci_dev *hdev,
+				 void (*cb)(struct pending_cmd *cmd, void *data),
+				 void *data)
+{
+	struct list_head *p, *n;
+
+	list_for_each_safe(p, n, &hdev->mgmt_pending) {
+		struct pending_cmd *cmd;
+
+		cmd = list_entry(p, struct pending_cmd, list);
+
+		if (opcode > 0 && cmd->opcode != opcode)
+			continue;
+
+		cb(cmd, data);
+	}
+}
+
+static struct pending_cmd *mgmt_pending_find(u16 opcode, struct hci_dev *hdev)
+{
+	struct pending_cmd *cmd;
+
+	list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
+		if (cmd->opcode == opcode)
+			return cmd;
+	}
+
+	return NULL;
+}
+
+static void mgmt_pending_remove(struct pending_cmd *cmd)
+{
+	list_del(&cmd->list);
+	mgmt_pending_free(cmd);
+}
+
+static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
+{
+	__le32 settings = cpu_to_le32(get_current_settings(hdev));
+
+	return cmd_complete(sk, hdev->id, opcode, 0, &settings,
+			    sizeof(settings));
+}
+
+static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
+		       u16 len)
+{
+	struct mgmt_mode *cp = data;
+	struct pending_cmd *cmd;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
+		cancel_delayed_work(&hdev->power_off);
+
+		if (cp->val) {
+			err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
+			mgmt_powered(hdev, 1);
+			goto failed;
+		}
+	}
+
+	if (!!cp->val == hdev_is_powered(hdev)) {
+		err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
+		goto failed;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
+				 MGMT_STATUS_BUSY);
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	if (cp->val)
+		schedule_work(&hdev->power_on);
+	else
+		schedule_work(&hdev->power_off.work);
+
+	err = 0;
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 data_len,
+		      struct sock *skip_sk)
+{
+	struct sk_buff *skb;
+	struct mgmt_hdr *hdr;
+
+	skb = alloc_skb(sizeof(*hdr) + data_len, GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+
+	hdr = (void *) skb_put(skb, sizeof(*hdr));
+	hdr->opcode = cpu_to_le16(event);
+	if (hdev)
+		hdr->index = cpu_to_le16(hdev->id);
+	else
+		hdr->index = cpu_to_le16(MGMT_INDEX_NONE);
+	hdr->len = cpu_to_le16(data_len);
+
+	if (data)
+		memcpy(skb_put(skb, data_len), data, data_len);
+
+	/* Time stamp */
+	__net_timestamp(skb);
+
+	hci_send_to_control(skb, skip_sk);
+	kfree_skb(skb);
+
+	return 0;
+}
+
+static int new_settings(struct hci_dev *hdev, struct sock *skip)
+{
+	__le32 ev;
+
+	ev = cpu_to_le32(get_current_settings(hdev));
+
+	return mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), skip);
+}
+
+static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
+			    u16 len)
+{
+	struct mgmt_cp_set_discoverable *cp = data;
+	struct pending_cmd *cmd;
+	u16 timeout;
+	u8 scan;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	timeout = get_unaligned_le16(&cp->timeout);
+	if (!cp->val && timeout > 0)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
+				  MGMT_STATUS_INVALID_PARAMS);
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev) && timeout > 0) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
+				 MGMT_STATUS_NOT_POWERED);
+		goto failed;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
+			mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
+				 MGMT_STATUS_BUSY);
+		goto failed;
+	}
+
+	if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
+				 MGMT_STATUS_REJECTED);
+		goto failed;
+	}
+
+	if (!hdev_is_powered(hdev)) {
+		bool changed = false;
+
+		if (!!cp->val != test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) {
+			change_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
+			changed = true;
+		}
+
+		err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
+		if (err < 0)
+			goto failed;
+
+		if (changed)
+			err = new_settings(hdev, sk);
+
+		goto failed;
+	}
+
+	if (!!cp->val == test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) {
+		if (hdev->discov_timeout > 0) {
+			cancel_delayed_work(&hdev->discov_off);
+			hdev->discov_timeout = 0;
+		}
+
+		if (cp->val && timeout > 0) {
+			hdev->discov_timeout = timeout;
+			queue_delayed_work(hdev->workqueue, &hdev->discov_off,
+				msecs_to_jiffies(hdev->discov_timeout * 1000));
+		}
+
+		err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	scan = SCAN_PAGE;
+
+	if (cp->val)
+		scan |= SCAN_INQUIRY;
+	else
+		cancel_delayed_work(&hdev->discov_off);
+
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+	if (cp->val)
+		hdev->discov_timeout = timeout;
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
+			   u16 len)
+{
+	struct mgmt_mode *cp = data;
+	struct pending_cmd *cmd;
+	u8 scan;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		bool changed = false;
+
+		if (!!cp->val != test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+			changed = true;
+
+		if (cp->val) {
+			set_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+		} else {
+			clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+			clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
+		}
+
+		err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
+		if (err < 0)
+			goto failed;
+
+		if (changed)
+			err = new_settings(hdev, sk);
+
+		goto failed;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
+			mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
+				 MGMT_STATUS_BUSY);
+		goto failed;
+	}
+
+	if (!!cp->val == test_bit(HCI_PSCAN, &hdev->flags)) {
+		err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	if (cp->val) {
+		scan = SCAN_PAGE;
+	} else {
+		scan = 0;
+
+		if (test_bit(HCI_ISCAN, &hdev->flags) &&
+						hdev->discov_timeout > 0)
+			cancel_delayed_work(&hdev->discov_off);
+	}
+
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data,
+			u16 len)
+{
+	struct mgmt_mode *cp = data;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (cp->val)
+		set_bit(HCI_PAIRABLE, &hdev->dev_flags);
+	else
+		clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
+
+	err = send_settings_rsp(sk, MGMT_OP_SET_PAIRABLE, hdev);
+	if (err < 0)
+		goto failed;
+
+	err = new_settings(hdev, sk);
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
+			     u16 len)
+{
+	struct mgmt_mode *cp = data;
+	struct pending_cmd *cmd;
+	u8 val;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		bool changed = false;
+
+		if (!!cp->val != test_bit(HCI_LINK_SECURITY,
+							&hdev->dev_flags)) {
+			change_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
+			changed = true;
+		}
+
+		err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
+		if (err < 0)
+			goto failed;
+
+		if (changed)
+			err = new_settings(hdev, sk);
+
+		goto failed;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_SET_LINK_SECURITY, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
+				 MGMT_STATUS_BUSY);
+		goto failed;
+	}
+
+	val = !!cp->val;
+
+	if (test_bit(HCI_AUTH, &hdev->flags) == val) {
+		err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_LINK_SECURITY, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(val), &val);
+	if (err < 0) {
+		mgmt_pending_remove(cmd);
+		goto failed;
+	}
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
+{
+	struct mgmt_mode *cp = data;
+	struct pending_cmd *cmd;
+	u8 val;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!(hdev->features[6] & LMP_SIMPLE_PAIR)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
+				 MGMT_STATUS_NOT_SUPPORTED);
+		goto failed;
+	}
+
+	val = !!cp->val;
+
+	if (!hdev_is_powered(hdev)) {
+		bool changed = false;
+
+		if (val != test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
+			change_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
+			changed = true;
+		}
+
+		err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
+		if (err < 0)
+			goto failed;
+
+		if (changed)
+			err = new_settings(hdev, sk);
+
+		goto failed;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev)) {
+	     err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
+			      MGMT_STATUS_BUSY);
+		goto failed;
+	}
+
+	if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) == val) {
+		err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_SSP, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(val), &val);
+	if (err < 0) {
+		mgmt_pending_remove(cmd);
+		goto failed;
+	}
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
+{
+	struct mgmt_mode *cp = data;
+
+	BT_DBG("request for %s", hdev->name);
+
+	if (!enable_hs)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
+	if (cp->val)
+		set_bit(HCI_HS_ENABLED, &hdev->dev_flags);
+	else
+		clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
+
+	return send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
+}
+
+static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
+{
+	struct mgmt_mode *cp = data;
+	struct hci_cp_write_le_host_supported hci_cp;
+	struct pending_cmd *cmd;
+	int err;
+	u8 val, enabled;
+
+	BT_DBG("request for %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!enable_le || !(hdev->features[4] & LMP_LE)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
+				 MGMT_STATUS_NOT_SUPPORTED);
+		goto unlock;
+	}
+
+	val = !!cp->val;
+	enabled = !!(hdev->host_features[0] & LMP_HOST_LE);
+
+	if (!hdev_is_powered(hdev) || val == enabled) {
+		bool changed = false;
+
+		if (val != test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
+			change_bit(HCI_LE_ENABLED, &hdev->dev_flags);
+			changed = true;
+		}
+
+		err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
+		if (err < 0)
+			goto unlock;
+
+		if (changed)
+			err = new_settings(hdev, sk);
+
+		goto unlock;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_SET_LE, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
+				 MGMT_STATUS_BUSY);
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+
+	memset(&hci_cp, 0, sizeof(hci_cp));
+
+	if (val) {
+		hci_cp.le = val;
+		hci_cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
+	}
+
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
+			   &hci_cp);
+	if (err < 0) {
+		mgmt_pending_remove(cmd);
+		goto unlock;
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
+{
+	struct mgmt_cp_add_uuid *cp = data;
+	struct pending_cmd *cmd;
+	struct bt_uuid *uuid;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_ADD_UUID,
+				 MGMT_STATUS_BUSY);
+		goto failed;
+	}
+
+	uuid = kmalloc(sizeof(*uuid), GFP_ATOMIC);
+	if (!uuid) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	memcpy(uuid->uuid, cp->uuid, 16);
+	uuid->svc_hint = cp->svc_hint;
+
+	list_add(&uuid->list, &hdev->uuids);
+
+	err = update_class(hdev);
+	if (err < 0)
+		goto failed;
+
+	err = update_eir(hdev);
+	if (err < 0)
+		goto failed;
+
+	if (!test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_UUID, 0,
+				   hdev->dev_class, 3);
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_ADD_UUID, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static bool enable_service_cache(struct hci_dev *hdev)
+{
+	if (!hdev_is_powered(hdev))
+		return false;
+
+	if (!test_and_set_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) {
+		schedule_delayed_work(&hdev->service_cache, CACHE_TIMEOUT);
+		return true;
+	}
+
+	return false;
+}
+
+static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
+								u16 len)
+{
+	struct mgmt_cp_remove_uuid *cp = data;
+	struct pending_cmd *cmd;
+	struct list_head *p, *n;
+	u8 bt_uuid_any[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+	int err, found;
+
+	BT_DBG("request for %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
+				 MGMT_STATUS_BUSY);
+		goto unlock;
+	}
+
+	if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) {
+		err = hci_uuids_clear(hdev);
+
+		if (enable_service_cache(hdev)) {
+			err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID,
+					   0, hdev->dev_class, 3);
+			goto unlock;
+		}
+
+		goto update_class;
+	}
+
+	found = 0;
+
+	list_for_each_safe(p, n, &hdev->uuids) {
+		struct bt_uuid *match = list_entry(p, struct bt_uuid, list);
+
+		if (memcmp(match->uuid, cp->uuid, 16) != 0)
+			continue;
+
+		list_del(&match->list);
+		found++;
+	}
+
+	if (found == 0) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
+				 MGMT_STATUS_INVALID_PARAMS);
+		goto unlock;
+	}
+
+update_class:
+	err = update_class(hdev);
+	if (err < 0)
+		goto unlock;
+
+	err = update_eir(hdev);
+	if (err < 0)
+		goto unlock;
+
+	if (!test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID, 0,
+				   hdev->dev_class, 3);
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_UUID, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
+			 u16 len)
+{
+	struct mgmt_cp_set_dev_class *cp = data;
+	struct pending_cmd *cmd;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
+				 MGMT_STATUS_BUSY);
+		goto unlock;
+	}
+
+	hdev->major_class = cp->major;
+	hdev->minor_class = cp->minor;
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
+				   hdev->dev_class, 3);
+		goto unlock;
+	}
+
+	if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) {
+		hci_dev_unlock(hdev);
+		cancel_delayed_work_sync(&hdev->service_cache);
+		hci_dev_lock(hdev);
+		update_eir(hdev);
+	}
+
+	err = update_class(hdev);
+	if (err < 0)
+		goto unlock;
+
+	if (!test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
+				   hdev->dev_class, 3);
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
+								u16 len)
+{
+	struct mgmt_cp_load_link_keys *cp = data;
+	u16 key_count, expected_len;
+	int i;
+
+	key_count = get_unaligned_le16(&cp->key_count);
+
+	expected_len = sizeof(*cp) + key_count *
+					sizeof(struct mgmt_link_key_info);
+	if (expected_len != len) {
+		BT_ERR("load_link_keys: expected %u bytes, got %u bytes",
+							len, expected_len);
+		return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
+				  MGMT_STATUS_INVALID_PARAMS);
+	}
+
+	BT_DBG("%s debug_keys %u key_count %u", hdev->name, cp->debug_keys,
+								key_count);
+
+	hci_dev_lock(hdev);
+
+	hci_link_keys_clear(hdev);
+
+	set_bit(HCI_LINK_KEYS, &hdev->dev_flags);
+
+	if (cp->debug_keys)
+		set_bit(HCI_DEBUG_KEYS, &hdev->dev_flags);
+	else
+		clear_bit(HCI_DEBUG_KEYS, &hdev->dev_flags);
+
+	for (i = 0; i < key_count; i++) {
+		struct mgmt_link_key_info *key = &cp->keys[i];
+
+		hci_add_link_key(hdev, NULL, 0, &key->addr.bdaddr, key->val,
+				 key->type, key->pin_len);
+	}
+
+	cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, 0, NULL, 0);
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int device_unpaired(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			   u8 addr_type, struct sock *skip_sk)
+{
+	struct mgmt_ev_device_unpaired ev;
+
+	bacpy(&ev.addr.bdaddr, bdaddr);
+	ev.addr.type = addr_type;
+
+	return mgmt_event(MGMT_EV_DEVICE_UNPAIRED, hdev, &ev, sizeof(ev),
+			  skip_sk);
+}
+
+static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
+			 u16 len)
+{
+	struct mgmt_cp_unpair_device *cp = data;
+	struct mgmt_rp_unpair_device rp;
+	struct hci_cp_disconnect dc;
+	struct pending_cmd *cmd;
+	struct hci_conn *conn;
+	int err;
+
+	hci_dev_lock(hdev);
+
+	memset(&rp, 0, sizeof(rp));
+	bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
+	rp.addr.type = cp->addr.type;
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
+				   MGMT_STATUS_NOT_POWERED, &rp, sizeof(rp));
+		goto unlock;
+	}
+
+	if (cp->addr.type == MGMT_ADDR_BREDR)
+		err = hci_remove_link_key(hdev, &cp->addr.bdaddr);
+	else
+		err = hci_remove_ltk(hdev, &cp->addr.bdaddr);
+
+	if (err < 0) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
+				   MGMT_STATUS_NOT_PAIRED, &rp, sizeof(rp));
+		goto unlock;
+	}
+
+	if (cp->disconnect) {
+		if (cp->addr.type == MGMT_ADDR_BREDR)
+			conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
+							&cp->addr.bdaddr);
+		else
+			conn = hci_conn_hash_lookup_ba(hdev, LE_LINK,
+							&cp->addr.bdaddr);
+	} else {
+		conn = NULL;
+	}
+
+	if (!conn) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 0,
+				   &rp, sizeof(rp));
+		device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk);
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_UNPAIR_DEVICE, hdev, cp,
+			       sizeof(*cp));
+	if (!cmd) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+
+	put_unaligned_le16(conn->handle, &dc.handle);
+	dc.reason = 0x13; /* Remote User Terminated Connection */
+	err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data,
+		      u16 len)
+{
+	struct mgmt_cp_disconnect *cp = data;
+	struct hci_cp_disconnect dc;
+	struct pending_cmd *cmd;
+	struct hci_conn *conn;
+	int err;
+
+	BT_DBG("");
+
+	hci_dev_lock(hdev);
+
+	if (!test_bit(HCI_UP, &hdev->flags)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT,
+				 MGMT_STATUS_NOT_POWERED);
+		goto failed;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_DISCONNECT, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT,
+				 MGMT_STATUS_BUSY);
+		goto failed;
+	}
+
+	if (cp->addr.type == MGMT_ADDR_BREDR)
+		conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
+	else
+		conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
+
+	if (!conn) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT,
+				 MGMT_STATUS_NOT_CONNECTED);
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_DISCONNECT, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	put_unaligned_le16(conn->handle, &dc.handle);
+	dc.reason = 0x13; /* Remote User Terminated Connection */
+
+	err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static u8 link_to_mgmt(u8 link_type, u8 addr_type)
+{
+	switch (link_type) {
+	case LE_LINK:
+		switch (addr_type) {
+		case ADDR_LE_DEV_PUBLIC:
+			return MGMT_ADDR_LE_PUBLIC;
+		case ADDR_LE_DEV_RANDOM:
+			return MGMT_ADDR_LE_RANDOM;
+		default:
+			return MGMT_ADDR_INVALID;
+		}
+	case ACL_LINK:
+		return MGMT_ADDR_BREDR;
+	default:
+		return MGMT_ADDR_INVALID;
+	}
+}
+
+static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
+			   u16 data_len)
+{
+	struct mgmt_rp_get_connections *rp;
+	struct hci_conn *c;
+	size_t rp_len;
+	int err;
+	u16 i;
+
+	BT_DBG("");
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_GET_CONNECTIONS,
+				 MGMT_STATUS_NOT_POWERED);
+		goto unlock;
+	}
+
+	i = 0;
+	list_for_each_entry(c, &hdev->conn_hash.list, list) {
+		if (test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
+			i++;
+	}
+
+	rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
+	rp = kmalloc(rp_len, GFP_ATOMIC);
+	if (!rp) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+
+	i = 0;
+	list_for_each_entry(c, &hdev->conn_hash.list, list) {
+		if (!test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
+			continue;
+		bacpy(&rp->addr[i].bdaddr, &c->dst);
+		rp->addr[i].type = link_to_mgmt(c->type, c->dst_type);
+		if (rp->addr[i].type == MGMT_ADDR_INVALID)
+			continue;
+		i++;
+	}
+
+	put_unaligned_le16(i, &rp->conn_count);
+
+	/* Recalculate length in case of filtered SCO connections, etc */
+	rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 0, rp,
+			   rp_len);
+
+	kfree(rp);
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int send_pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
+				   struct mgmt_cp_pin_code_neg_reply *cp)
+{
+	struct pending_cmd *cmd;
+	int err;
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_NEG_REPLY, hdev, cp,
+			       sizeof(*cp));
+	if (!cmd)
+		return -ENOMEM;
+
+	err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
+			   sizeof(cp->addr.bdaddr), &cp->addr.bdaddr);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+	return err;
+}
+
+static int pin_code_reply(struct sock *sk, struct hci_dev *hdev, void *data,
+			  u16 len)
+{
+	struct hci_conn *conn;
+	struct mgmt_cp_pin_code_reply *cp = data;
+	struct hci_cp_pin_code_reply reply;
+	struct pending_cmd *cmd;
+	int err;
+
+	BT_DBG("");
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
+				 MGMT_STATUS_NOT_POWERED);
+		goto failed;
+	}
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
+	if (!conn) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
+				 MGMT_STATUS_NOT_CONNECTED);
+		goto failed;
+	}
+
+	if (conn->pending_sec_level == BT_SECURITY_HIGH && cp->pin_len != 16) {
+		struct mgmt_cp_pin_code_neg_reply ncp;
+
+		memcpy(&ncp.addr, &cp->addr, sizeof(ncp.addr));
+
+		BT_ERR("PIN code is not 16 bytes long");
+
+		err = send_pin_code_neg_reply(sk, hdev, &ncp);
+		if (err >= 0)
+			err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
+					 MGMT_STATUS_INVALID_PARAMS);
+
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_REPLY, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	bacpy(&reply.bdaddr, &cp->addr.bdaddr);
+	reply.pin_len = cp->pin_len;
+	memcpy(reply.pin_code, cp->pin_code, sizeof(reply.pin_code));
+
+	err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
+			      void *data, u16 len)
+{
+	struct mgmt_cp_pin_code_neg_reply *cp = data;
+	int err;
+
+	BT_DBG("");
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_NEG_REPLY,
+				 MGMT_STATUS_NOT_POWERED);
+		goto failed;
+	}
+
+	err = send_pin_code_neg_reply(sk, hdev, cp);
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data,
+			     u16 len)
+{
+	struct mgmt_cp_set_io_capability *cp = data;
+
+	BT_DBG("");
+
+	hci_dev_lock(hdev);
+
+	hdev->io_capability = cp->io_capability;
+
+	BT_DBG("%s IO capability set to 0x%02x", hdev->name,
+							hdev->io_capability);
+
+	hci_dev_unlock(hdev);
+
+	return cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY, 0, NULL,
+			    0);
+}
+
+static inline struct pending_cmd *find_pairing(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct pending_cmd *cmd;
+
+	list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
+		if (cmd->opcode != MGMT_OP_PAIR_DEVICE)
+			continue;
+
+		if (cmd->user_data != conn)
+			continue;
+
+		return cmd;
+	}
+
+	return NULL;
+}
+
+static void pairing_complete(struct pending_cmd *cmd, u8 status)
+{
+	struct mgmt_rp_pair_device rp;
+	struct hci_conn *conn = cmd->user_data;
+
+	bacpy(&rp.addr.bdaddr, &conn->dst);
+	rp.addr.type = link_to_mgmt(conn->type, conn->dst_type);
+
+	cmd_complete(cmd->sk, cmd->index, MGMT_OP_PAIR_DEVICE, status,
+		     &rp, sizeof(rp));
+
+	/* So we don't get further callbacks for this connection */
+	conn->connect_cfm_cb = NULL;
+	conn->security_cfm_cb = NULL;
+	conn->disconn_cfm_cb = NULL;
+
+	hci_conn_put(conn);
+
+	mgmt_pending_remove(cmd);
+}
+
+static void pairing_complete_cb(struct hci_conn *conn, u8 status)
+{
+	struct pending_cmd *cmd;
+
+	BT_DBG("status %u", status);
+
+	cmd = find_pairing(conn);
+	if (!cmd)
+		BT_DBG("Unable to find a pending command");
+	else
+		pairing_complete(cmd, mgmt_status(status));
+}
+
+static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
+		       u16 len)
+{
+	struct mgmt_cp_pair_device *cp = data;
+	struct mgmt_rp_pair_device rp;
+	struct pending_cmd *cmd;
+	u8 sec_level, auth_type;
+	struct hci_conn *conn;
+	int err;
+
+	BT_DBG("");
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
+				 MGMT_STATUS_NOT_POWERED);
+		goto unlock;
+	}
+
+	sec_level = BT_SECURITY_MEDIUM;
+	if (cp->io_cap == 0x03)
+		auth_type = HCI_AT_DEDICATED_BONDING;
+	else
+		auth_type = HCI_AT_DEDICATED_BONDING_MITM;
+
+	if (cp->addr.type == MGMT_ADDR_BREDR)
+		conn = hci_connect(hdev, ACL_LINK, &cp->addr.bdaddr, sec_level,
+				   auth_type);
+	else
+		conn = hci_connect(hdev, LE_LINK, &cp->addr.bdaddr, sec_level,
+				   auth_type);
+
+	memset(&rp, 0, sizeof(rp));
+	bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
+	rp.addr.type = cp->addr.type;
+
+	if (IS_ERR(conn)) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
+				   MGMT_STATUS_CONNECT_FAILED, &rp,
+				   sizeof(rp));
+		goto unlock;
+	}
+
+	if (conn->connect_cfm_cb) {
+		hci_conn_put(conn);
+		err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
+				   MGMT_STATUS_BUSY, &rp, sizeof(rp));
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_PAIR_DEVICE, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		hci_conn_put(conn);
+		goto unlock;
+	}
+
+	/* For LE, just connecting isn't a proof that the pairing finished */
+	if (cp->addr.type == MGMT_ADDR_BREDR)
+		conn->connect_cfm_cb = pairing_complete_cb;
+
+	conn->security_cfm_cb = pairing_complete_cb;
+	conn->disconn_cfm_cb = pairing_complete_cb;
+	conn->io_capability = cp->io_cap;
+	cmd->user_data = conn;
+
+	if (conn->state == BT_CONNECTED &&
+				hci_conn_security(conn, sec_level, auth_type))
+		pairing_complete(cmd, 0);
+
+	err = 0;
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
+			      u16 len)
+{
+	struct mgmt_addr_info *addr = data;
+	struct pending_cmd *cmd;
+	struct hci_conn *conn;
+	int err;
+
+	BT_DBG("");
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
+				 MGMT_STATUS_NOT_POWERED);
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_find(MGMT_OP_PAIR_DEVICE, hdev);
+	if (!cmd) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
+				 MGMT_STATUS_INVALID_PARAMS);
+		goto unlock;
+	}
+
+	conn = cmd->user_data;
+
+	if (bacmp(&addr->bdaddr, &conn->dst) != 0) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
+				 MGMT_STATUS_INVALID_PARAMS);
+		goto unlock;
+	}
+
+	pairing_complete(cmd, MGMT_STATUS_CANCELLED);
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 0,
+			   addr, sizeof(*addr));
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
+			     bdaddr_t *bdaddr, u8 type, u16 mgmt_op,
+			     u16 hci_op, __le32 passkey)
+{
+	struct pending_cmd *cmd;
+	struct hci_conn *conn;
+	int err;
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, hdev->id, mgmt_op,
+				 MGMT_STATUS_NOT_POWERED);
+		goto done;
+	}
+
+	if (type == MGMT_ADDR_BREDR)
+		conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, bdaddr);
+	else
+		conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
+
+	if (!conn) {
+		err = cmd_status(sk, hdev->id, mgmt_op,
+				 MGMT_STATUS_NOT_CONNECTED);
+		goto done;
+	}
+
+	if (type == MGMT_ADDR_LE_PUBLIC || type == MGMT_ADDR_LE_RANDOM) {
+		/* Continue with pairing via SMP */
+		err = smp_user_confirm_reply(conn, mgmt_op, passkey);
+
+		if (!err)
+			err = cmd_status(sk, hdev->id, mgmt_op,
+					 MGMT_STATUS_SUCCESS);
+		else
+			err = cmd_status(sk, hdev->id, mgmt_op,
+					 MGMT_STATUS_FAILED);
+
+		goto done;
+	}
+
+	cmd = mgmt_pending_add(sk, mgmt_op, hdev, bdaddr, sizeof(*bdaddr));
+	if (!cmd) {
+		err = -ENOMEM;
+		goto done;
+	}
+
+	/* Continue with pairing via HCI */
+	if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {
+		struct hci_cp_user_passkey_reply cp;
+
+		bacpy(&cp.bdaddr, bdaddr);
+		cp.passkey = passkey;
+		err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);
+	} else
+		err = hci_send_cmd(hdev, hci_op, sizeof(*bdaddr), bdaddr);
+
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+done:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data,
+			      u16 len)
+{
+	struct mgmt_cp_user_confirm_reply *cp = data;
+
+	BT_DBG("");
+
+	if (len != sizeof(*cp))
+		return cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY,
+				  MGMT_STATUS_INVALID_PARAMS);
+
+	return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
+				 MGMT_OP_USER_CONFIRM_REPLY,
+				 HCI_OP_USER_CONFIRM_REPLY, 0);
+}
+
+static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev,
+				  void *data, u16 len)
+{
+	struct mgmt_cp_user_confirm_neg_reply *cp = data;
+
+	BT_DBG("");
+
+	return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
+				 MGMT_OP_USER_CONFIRM_NEG_REPLY,
+				 HCI_OP_USER_CONFIRM_NEG_REPLY, 0);
+}
+
+static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data,
+			      u16 len)
+{
+	struct mgmt_cp_user_passkey_reply *cp = data;
+
+	BT_DBG("");
+
+	return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
+				 MGMT_OP_USER_PASSKEY_REPLY,
+				 HCI_OP_USER_PASSKEY_REPLY, cp->passkey);
+}
+
+static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev,
+				  void *data, u16 len)
+{
+	struct mgmt_cp_user_passkey_neg_reply *cp = data;
+
+	BT_DBG("");
+
+	return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
+				 MGMT_OP_USER_PASSKEY_NEG_REPLY,
+				 HCI_OP_USER_PASSKEY_NEG_REPLY, 0);
+}
+
+static int update_name(struct hci_dev *hdev, const char *name)
+{
+	struct hci_cp_write_local_name cp;
+
+	memcpy(cp.name, name, sizeof(cp.name));
+
+	return hci_send_cmd(hdev, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp);
+}
+
+static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
+			  u16 len)
+{
+	struct mgmt_cp_set_local_name *cp = data;
+	struct pending_cmd *cmd;
+	int err;
+
+	BT_DBG("");
+
+	hci_dev_lock(hdev);
+
+	memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name));
+
+	if (!hdev_is_powered(hdev)) {
+		memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
+
+		err = cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
+				   data, len);
+		if (err < 0)
+			goto failed;
+
+		err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, data, len,
+				 sk);
+
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	err = update_name(hdev, cp->name);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
+			       void *data, u16 data_len)
+{
+	struct pending_cmd *cmd;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
+				 MGMT_STATUS_NOT_POWERED);
+		goto unlock;
+	}
+
+	if (!(hdev->features[6] & LMP_SIMPLE_PAIR)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
+				 MGMT_STATUS_NOT_SUPPORTED);
+		goto unlock;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
+				 MGMT_STATUS_BUSY);
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+
+	err = hci_send_cmd(hdev, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int add_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
+			       void *data, u16 len)
+{
+	struct mgmt_cp_add_remote_oob_data *cp = data;
+	u8 status;
+	int err;
+
+	BT_DBG("%s ", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA,
+				   MGMT_STATUS_NOT_POWERED, &cp->addr,
+				   sizeof(cp->addr));
+		goto unlock;
+	}
+
+	err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr, cp->hash,
+				      cp->randomizer);
+	if (err < 0)
+		status = MGMT_STATUS_FAILED;
+	else
+		status = 0;
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA, status,
+			   &cp->addr, sizeof(cp->addr));
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
+						void *data, u16 len)
+{
+	struct mgmt_cp_remove_remote_oob_data *cp = data;
+	u8 status;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_complete(sk, hdev->id,
+				   MGMT_OP_REMOVE_REMOTE_OOB_DATA,
+				   MGMT_STATUS_NOT_POWERED, &cp->addr,
+				   sizeof(cp->addr));
+		goto unlock;
+	}
+
+	err = hci_remove_remote_oob_data(hdev, &cp->addr.bdaddr);
+	if (err < 0)
+		status = MGMT_STATUS_INVALID_PARAMS;
+	else
+		status = 0;
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
+			   status, &cp->addr, sizeof(cp->addr));
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+int mgmt_interleaved_discovery(struct hci_dev *hdev)
+{
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR_LE);
+	if (err < 0)
+		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+
+	hci_dev_unlock(hdev);
+
+	return err;
+}
+
+static int start_discovery(struct sock *sk, struct hci_dev *hdev,
+			   void *data, u16 len)
+{
+	struct mgmt_cp_start_discovery *cp = data;
+	struct pending_cmd *cmd;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!hdev_is_powered(hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
+				 MGMT_STATUS_NOT_POWERED);
+		goto failed;
+	}
+
+	if (hdev->discovery.state != DISCOVERY_STOPPED) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
+				 MGMT_STATUS_BUSY);
+		goto failed;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, NULL, 0);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto failed;
+	}
+
+	hdev->discovery.type = cp->type;
+
+	switch (hdev->discovery.type) {
+	case DISCOV_TYPE_BREDR:
+		if (lmp_bredr_capable(hdev))
+			err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR);
+		else
+			err = -ENOTSUPP;
+		break;
+
+	case DISCOV_TYPE_LE:
+		if (lmp_host_le_capable(hdev))
+			err = hci_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT,
+					  LE_SCAN_WIN, LE_SCAN_TIMEOUT_LE_ONLY);
+		else
+			err = -ENOTSUPP;
+		break;
+
+	case DISCOV_TYPE_INTERLEAVED:
+		if (lmp_host_le_capable(hdev) && lmp_bredr_capable(hdev))
+			err = hci_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT,
+					  LE_SCAN_WIN,
+					  LE_SCAN_TIMEOUT_BREDR_LE);
+		else
+			err = -ENOTSUPP;
+		break;
+
+	default:
+		err = -EINVAL;
+	}
+
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+	else
+		hci_discovery_set_state(hdev, DISCOVERY_STARTING);
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
+			  u16 len)
+{
+	struct mgmt_cp_stop_discovery *mgmt_cp = data;
+	struct pending_cmd *cmd;
+	struct hci_cp_remote_name_req_cancel cp;
+	struct inquiry_entry *e;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!hci_discovery_active(hdev)) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
+				   MGMT_STATUS_REJECTED, &mgmt_cp->type,
+				   sizeof(mgmt_cp->type));
+		goto unlock;
+	}
+
+	if (hdev->discovery.type != mgmt_cp->type) {
+		err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
+				   MGMT_STATUS_INVALID_PARAMS, &mgmt_cp->type,
+				   sizeof(mgmt_cp->type));
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, NULL, 0);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+
+	if (hdev->discovery.state == DISCOVERY_FINDING) {
+		err = hci_cancel_inquiry(hdev);
+		if (err < 0)
+			mgmt_pending_remove(cmd);
+		else
+			hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
+		goto unlock;
+	}
+
+	e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_PENDING);
+	if (!e) {
+		mgmt_pending_remove(cmd);
+		err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 0,
+				   &mgmt_cp->type, sizeof(mgmt_cp->type));
+		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+		goto unlock;
+	}
+
+	bacpy(&cp.bdaddr, &e->data.bdaddr);
+	err = hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp),
+			   &cp);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+	else
+		hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int confirm_name(struct sock *sk, struct hci_dev *hdev, void *data,
+			u16 len)
+{
+	struct mgmt_cp_confirm_name *cp = data;
+	struct inquiry_entry *e;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	if (!hci_discovery_active(hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
+				 MGMT_STATUS_FAILED);
+		goto failed;
+	}
+
+	e = hci_inquiry_cache_lookup_unknown(hdev, &cp->addr.bdaddr);
+	if (!e) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
+				 MGMT_STATUS_INVALID_PARAMS);
+		goto failed;
+	}
+
+	if (cp->name_known) {
+		e->name_state = NAME_KNOWN;
+		list_del(&e->list);
+	} else {
+		e->name_state = NAME_NEEDED;
+		hci_inquiry_cache_update_resolve(hdev, e);
+	}
+
+	err = 0;
+
+failed:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int block_device(struct sock *sk, struct hci_dev *hdev, void *data,
+			u16 len)
+{
+	struct mgmt_cp_block_device *cp = data;
+	u8 status;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	err = hci_blacklist_add(hdev, &cp->addr.bdaddr, cp->addr.type);
+	if (err < 0)
+		status = MGMT_STATUS_FAILED;
+	else
+		status = 0;
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE, status,
+			   &cp->addr, sizeof(cp->addr));
+
+	hci_dev_unlock(hdev);
+
+	return err;
+}
+
+static int unblock_device(struct sock *sk, struct hci_dev *hdev, void *data,
+			  u16 len)
+{
+	struct mgmt_cp_unblock_device *cp = data;
+	u8 status;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_dev_lock(hdev);
+
+	err = hci_blacklist_del(hdev, &cp->addr.bdaddr, cp->addr.type);
+	if (err < 0)
+		status = MGMT_STATUS_INVALID_PARAMS;
+	else
+		status = 0;
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE, status,
+			   &cp->addr, sizeof(cp->addr));
+
+	hci_dev_unlock(hdev);
+
+	return err;
+}
+
+static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
+				void *data, u16 len)
+{
+	struct mgmt_mode *cp = data;
+	struct hci_cp_write_page_scan_activity acp;
+	u8 type;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!hdev_is_powered(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
+				  MGMT_STATUS_NOT_POWERED);
+
+	if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
+				  MGMT_STATUS_REJECTED);
+
+	hci_dev_lock(hdev);
+
+	if (cp->val) {
+		type = PAGE_SCAN_TYPE_INTERLACED;
+
+		/* 22.5 msec page scan interval */
+		acp.interval = __constant_cpu_to_le16(0x0024);
+	} else {
+		type = PAGE_SCAN_TYPE_STANDARD;	/* default */
+
+		/* default 1.28 sec page scan */
+		acp.interval = __constant_cpu_to_le16(0x0800);
+	}
+
+	/* default 11.25 msec page scan window */
+	acp.window = __constant_cpu_to_le16(0x0012);
+
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY, sizeof(acp),
+			   &acp);
+	if (err < 0) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
+				 MGMT_STATUS_FAILED);
+		goto done;
+	}
+
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
+	if (err < 0) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
+				 MGMT_STATUS_FAILED);
+		goto done;
+	}
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, 0,
+			   NULL, 0);
+done:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
+static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
+			       void *cp_data, u16 len)
+{
+	struct mgmt_cp_load_long_term_keys *cp = cp_data;
+	u16 key_count, expected_len;
+	int i;
+
+	key_count = get_unaligned_le16(&cp->key_count);
+
+	expected_len = sizeof(*cp) + key_count *
+					sizeof(struct mgmt_ltk_info);
+	if (expected_len != len) {
+		BT_ERR("load_keys: expected %u bytes, got %u bytes",
+							len, expected_len);
+		return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
+				  EINVAL);
+	}
+
+	BT_DBG("%s key_count %u", hdev->name, key_count);
+
+	hci_dev_lock(hdev);
+
+	hci_smp_ltks_clear(hdev);
+
+	for (i = 0; i < key_count; i++) {
+		struct mgmt_ltk_info *key = &cp->keys[i];
+		u8 type;
+
+		if (key->master)
+			type = HCI_SMP_LTK;
+		else
+			type = HCI_SMP_LTK_SLAVE;
+
+		hci_add_ltk(hdev, &key->addr.bdaddr, key->addr.type,
+			    type, 0, key->authenticated, key->val,
+			    key->enc_size, key->ediv, key->rand);
+	}
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+struct mgmt_handler {
+	int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
+		     u16 data_len);
+	bool var_len;
+	size_t data_len;
+} mgmt_handlers[] = {
+	{ NULL }, /* 0x0000 (no command) */
+	{ read_version,           false, MGMT_READ_VERSION_SIZE },
+	{ read_commands,          false, MGMT_READ_COMMANDS_SIZE },
+	{ read_index_list,        false, MGMT_READ_INDEX_LIST_SIZE },
+	{ read_controller_info,   false, MGMT_READ_INFO_SIZE },
+	{ set_powered,            false, MGMT_SETTING_SIZE },
+	{ set_discoverable,       false, MGMT_SET_DISCOVERABLE_SIZE },
+	{ set_connectable,        false, MGMT_SETTING_SIZE },
+	{ set_fast_connectable,   false, MGMT_SETTING_SIZE },
+	{ set_pairable,           false, MGMT_SETTING_SIZE },
+	{ set_link_security,      false, MGMT_SETTING_SIZE },
+	{ set_ssp,                false, MGMT_SETTING_SIZE },
+	{ set_hs,                 false, MGMT_SETTING_SIZE },
+	{ set_le,                 false, MGMT_SETTING_SIZE },
+	{ set_dev_class,          false, MGMT_SET_DEV_CLASS_SIZE },
+	{ set_local_name,         false, MGMT_SET_LOCAL_NAME_SIZE },
+	{ add_uuid,               false, MGMT_ADD_UUID_SIZE },
+	{ remove_uuid,            false, MGMT_REMOVE_UUID_SIZE },
+	{ load_link_keys,         true,  MGMT_LOAD_LINK_KEYS_SIZE },
+	{ load_long_term_keys,    true,  MGMT_LOAD_LONG_TERM_KEYS_SIZE },
+	{ disconnect,             false, MGMT_DISCONNECT_SIZE },
+	{ get_connections,        false, MGMT_GET_CONNECTIONS_SIZE },
+	{ pin_code_reply,         false, MGMT_PIN_CODE_REPLY_SIZE },
+	{ pin_code_neg_reply,     false, MGMT_PIN_CODE_NEG_REPLY_SIZE },
+	{ set_io_capability,      false, MGMT_SET_IO_CAPABILITY_SIZE },
+	{ pair_device,            false, MGMT_PAIR_DEVICE_SIZE },
+	{ cancel_pair_device,     false, MGMT_CANCEL_PAIR_DEVICE_SIZE },
+	{ unpair_device,          false, MGMT_UNPAIR_DEVICE_SIZE },
+	{ user_confirm_reply,     false, MGMT_USER_CONFIRM_REPLY_SIZE },
+	{ user_confirm_neg_reply, false, MGMT_USER_CONFIRM_NEG_REPLY_SIZE },
+	{ user_passkey_reply,     false, MGMT_USER_PASSKEY_REPLY_SIZE },
+	{ user_passkey_neg_reply, false, MGMT_USER_PASSKEY_NEG_REPLY_SIZE },
+	{ read_local_oob_data,    false, MGMT_READ_LOCAL_OOB_DATA_SIZE },
+	{ add_remote_oob_data,    false, MGMT_ADD_REMOTE_OOB_DATA_SIZE },
+	{ remove_remote_oob_data, false, MGMT_REMOVE_REMOTE_OOB_DATA_SIZE },
+	{ start_discovery,        false, MGMT_START_DISCOVERY_SIZE },
+	{ stop_discovery,         false, MGMT_STOP_DISCOVERY_SIZE },
+	{ confirm_name,           false, MGMT_CONFIRM_NAME_SIZE },
+	{ block_device,           false, MGMT_BLOCK_DEVICE_SIZE },
+	{ unblock_device,         false, MGMT_UNBLOCK_DEVICE_SIZE },
+};
+
+
+int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
+{
+	void *buf;
+	u8 *cp;
+	struct mgmt_hdr *hdr;
+	u16 opcode, index, len;
+	struct hci_dev *hdev = NULL;
+	struct mgmt_handler *handler;
+	int err;
+
+	BT_DBG("got %zu bytes", msglen);
+
+	if (msglen < sizeof(*hdr))
+		return -EINVAL;
+
+	buf = kmalloc(msglen, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	if (memcpy_fromiovec(buf, msg->msg_iov, msglen)) {
+		err = -EFAULT;
+		goto done;
+	}
+
+	hdr = buf;
+	opcode = get_unaligned_le16(&hdr->opcode);
+	index = get_unaligned_le16(&hdr->index);
+	len = get_unaligned_le16(&hdr->len);
+
+	if (len != msglen - sizeof(*hdr)) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	if (index != MGMT_INDEX_NONE) {
+		hdev = hci_dev_get(index);
+		if (!hdev) {
+			err = cmd_status(sk, index, opcode,
+					 MGMT_STATUS_INVALID_INDEX);
+			goto done;
+		}
+	}
+
+	if (opcode >= ARRAY_SIZE(mgmt_handlers) ||
+					mgmt_handlers[opcode].func == NULL) {
+		BT_DBG("Unknown op %u", opcode);
+		err = cmd_status(sk, index, opcode,
+				 MGMT_STATUS_UNKNOWN_COMMAND);
+		goto done;
+	}
+
+	if ((hdev && opcode < MGMT_OP_READ_INFO) ||
+			(!hdev && opcode >= MGMT_OP_READ_INFO)) {
+		err = cmd_status(sk, index, opcode,
+				 MGMT_STATUS_INVALID_INDEX);
+		goto done;
+	}
+
+	handler = &mgmt_handlers[opcode];
+
+	if ((handler->var_len && len < handler->data_len) ||
+			(!handler->var_len && len != handler->data_len)) {
+		err = cmd_status(sk, index, opcode,
+				 MGMT_STATUS_INVALID_PARAMS);
+		goto done;
+	}
+
+	if (hdev)
+		mgmt_init_hdev(sk, hdev);
+
+	cp = buf + sizeof(*hdr);
+
+	err = handler->func(sk, hdev, cp, len);
+	if (err < 0)
+		goto done;
+
+	err = msglen;
+
+done:
+	if (hdev)
+		hci_dev_put(hdev);
+
+	kfree(buf);
+	return err;
+}
+
+static void cmd_status_rsp(struct pending_cmd *cmd, void *data)
+{
+	u8 *status = data;
+
+	cmd_status(cmd->sk, cmd->index, cmd->opcode, *status);
+	mgmt_pending_remove(cmd);
+}
+
+int mgmt_index_added(struct hci_dev *hdev)
+{
+	return mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
+}
+
+int mgmt_index_removed(struct hci_dev *hdev)
+{
+	u8 status = MGMT_STATUS_INVALID_INDEX;
+
+	mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
+
+	return mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
+}
+
+struct cmd_lookup {
+	struct sock *sk;
+	struct hci_dev *hdev;
+	u8 mgmt_status;
+};
+
+static void settings_rsp(struct pending_cmd *cmd, void *data)
+{
+	struct cmd_lookup *match = data;
+
+	send_settings_rsp(cmd->sk, cmd->opcode, match->hdev);
+
+	list_del(&cmd->list);
+
+	if (match->sk == NULL) {
+		match->sk = cmd->sk;
+		sock_hold(match->sk);
+	}
+
+	mgmt_pending_free(cmd);
+}
+
+int mgmt_powered(struct hci_dev *hdev, u8 powered)
+{
+	struct cmd_lookup match = { NULL, hdev };
+	int err;
+
+	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
+		return 0;
+
+	mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
+
+	if (powered) {
+		u8 scan = 0;
+
+		if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+			scan |= SCAN_PAGE;
+		if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
+			scan |= SCAN_INQUIRY;
+
+		if (scan)
+			hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+
+		update_class(hdev);
+		update_name(hdev, hdev->dev_name);
+		update_eir(hdev);
+	} else {
+		u8 status = MGMT_STATUS_NOT_POWERED;
+		mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
+	}
+
+	err = new_settings(hdev, match.sk);
+
+	if (match.sk)
+		sock_put(match.sk);
+
+	return err;
+}
+
+int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
+{
+	struct cmd_lookup match = { NULL, hdev };
+	bool changed = false;
+	int err = 0;
+
+	if (discoverable) {
+		if (!test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
+			changed = true;
+	} else {
+		if (test_and_clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
+			changed = true;
+	}
+
+	mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, settings_rsp,
+			     &match);
+
+	if (changed)
+		err = new_settings(hdev, match.sk);
+
+	if (match.sk)
+		sock_put(match.sk);
+
+	return err;
+}
+
+int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
+{
+	struct cmd_lookup match = { NULL, hdev };
+	bool changed = false;
+	int err = 0;
+
+	if (connectable) {
+		if (!test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+			changed = true;
+	} else {
+		if (test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+			changed = true;
+	}
+
+	mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev, settings_rsp,
+			     &match);
+
+	if (changed)
+		err = new_settings(hdev, match.sk);
+
+	if (match.sk)
+		sock_put(match.sk);
+
+	return err;
+}
+
+int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status)
+{
+	u8 mgmt_err = mgmt_status(status);
+
+	if (scan & SCAN_PAGE)
+		mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev,
+				     cmd_status_rsp, &mgmt_err);
+
+	if (scan & SCAN_INQUIRY)
+		mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev,
+				     cmd_status_rsp, &mgmt_err);
+
+	return 0;
+}
+
+int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, bool persistent)
+{
+	struct mgmt_ev_new_link_key ev;
+
+	memset(&ev, 0, sizeof(ev));
+
+	ev.store_hint = persistent;
+	bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
+	ev.key.addr.type = MGMT_ADDR_BREDR;
+	ev.key.type = key->type;
+	memcpy(ev.key.val, key->val, 16);
+	ev.key.pin_len = key->pin_len;
+
+	return mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
+}
+
+int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent)
+{
+	struct mgmt_ev_new_long_term_key ev;
+
+	memset(&ev, 0, sizeof(ev));
+
+	ev.store_hint = persistent;
+	bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
+	ev.key.addr.type = key->bdaddr_type;
+	ev.key.authenticated = key->authenticated;
+	ev.key.enc_size = key->enc_size;
+	ev.key.ediv = key->ediv;
+
+	if (key->type == HCI_SMP_LTK)
+		ev.key.master = 1;
+
+	memcpy(ev.key.rand, key->rand, sizeof(key->rand));
+	memcpy(ev.key.val, key->val, sizeof(key->val));
+
+	return mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev),
+			  NULL);
+}
+
+int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+			  u8 addr_type, u32 flags, u8 *name, u8 name_len,
+			  u8 *dev_class)
+{
+	char buf[512];
+	struct mgmt_ev_device_connected *ev = (void *) buf;
+	u16 eir_len = 0;
+
+	bacpy(&ev->addr.bdaddr, bdaddr);
+	ev->addr.type = link_to_mgmt(link_type, addr_type);
+
+	ev->flags = __cpu_to_le32(flags);
+
+	if (name_len > 0)
+		eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE,
+					  name, name_len);
+
+	if (dev_class && memcmp(dev_class, "\0\0\0", 3) != 0)
+		eir_len = eir_append_data(ev->eir, eir_len,
+					  EIR_CLASS_OF_DEV, dev_class, 3);
+
+	put_unaligned_le16(eir_len, &ev->eir_len);
+
+	return mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
+			  sizeof(*ev) + eir_len, NULL);
+}
+
+static void disconnect_rsp(struct pending_cmd *cmd, void *data)
+{
+	struct mgmt_cp_disconnect *cp = cmd->param;
+	struct sock **sk = data;
+	struct mgmt_rp_disconnect rp;
+
+	bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
+	rp.addr.type = cp->addr.type;
+
+	cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT, 0, &rp,
+		     sizeof(rp));
+
+	*sk = cmd->sk;
+	sock_hold(*sk);
+
+	mgmt_pending_remove(cmd);
+}
+
+static void unpair_device_rsp(struct pending_cmd *cmd, void *data)
+{
+	struct hci_dev *hdev = data;
+	struct mgmt_cp_unpair_device *cp = cmd->param;
+	struct mgmt_rp_unpair_device rp;
+
+	memset(&rp, 0, sizeof(rp));
+	bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
+	rp.addr.type = cp->addr.type;
+
+	device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, cmd->sk);
+
+	cmd_complete(cmd->sk, cmd->index, cmd->opcode, 0, &rp, sizeof(rp));
+
+	mgmt_pending_remove(cmd);
+}
+
+int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			     u8 link_type, u8 addr_type)
+{
+	struct mgmt_addr_info ev;
+	struct sock *sk = NULL;
+	int err;
+
+	mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk);
+
+	bacpy(&ev.bdaddr, bdaddr);
+	ev.type = link_to_mgmt(link_type, addr_type);
+
+	err = mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev),
+			 sk);
+
+	if (sk)
+	  sock_put(sk);
+
+	mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
+			     hdev);
+
+	return err;
+}
+
+int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			   u8 link_type, u8 addr_type, u8 status)
+{
+	struct mgmt_rp_disconnect rp;
+	struct pending_cmd *cmd;
+	int err;
+
+	cmd = mgmt_pending_find(MGMT_OP_DISCONNECT, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	bacpy(&rp.addr.bdaddr, bdaddr);
+	rp.addr.type = link_to_mgmt(link_type, addr_type);
+
+	err = cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT,
+			   mgmt_status(status), &rp, sizeof(rp));
+
+	mgmt_pending_remove(cmd);
+
+	mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
+									hdev);
+	return err;
+}
+
+int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+			u8 addr_type, u8 status)
+{
+	struct mgmt_ev_connect_failed ev;
+
+	bacpy(&ev.addr.bdaddr, bdaddr);
+	ev.addr.type = link_to_mgmt(link_type, addr_type);
+	ev.status = mgmt_status(status);
+
+	return mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
+}
+
+int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
+{
+	struct mgmt_ev_pin_code_request ev;
+
+	bacpy(&ev.addr.bdaddr, bdaddr);
+	ev.addr.type = MGMT_ADDR_BREDR;
+	ev.secure = secure;
+
+	return mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev),
+			  NULL);
+}
+
+int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				 u8 status)
+{
+	struct pending_cmd *cmd;
+	struct mgmt_rp_pin_code_reply rp;
+	int err;
+
+	cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_REPLY, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	bacpy(&rp.addr.bdaddr, bdaddr);
+	rp.addr.type = MGMT_ADDR_BREDR;
+
+	err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
+			   mgmt_status(status), &rp, sizeof(rp));
+
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
+int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				     u8 status)
+{
+	struct pending_cmd *cmd;
+	struct mgmt_rp_pin_code_reply rp;
+	int err;
+
+	cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	bacpy(&rp.addr.bdaddr, bdaddr);
+	rp.addr.type = MGMT_ADDR_BREDR;
+
+	err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_NEG_REPLY,
+			   mgmt_status(status), &rp, sizeof(rp));
+
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
+int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			      u8 link_type, u8 addr_type, __le32 value,
+			      u8 confirm_hint)
+{
+	struct mgmt_ev_user_confirm_request ev;
+
+	BT_DBG("%s", hdev->name);
+
+	bacpy(&ev.addr.bdaddr, bdaddr);
+	ev.addr.type = link_to_mgmt(link_type, addr_type);
+	ev.confirm_hint = confirm_hint;
+	put_unaligned_le32(value, &ev.value);
+
+	return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, hdev, &ev, sizeof(ev),
+			  NULL);
+}
+
+int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
+						u8 link_type, u8 addr_type)
+{
+	struct mgmt_ev_user_passkey_request ev;
+
+	BT_DBG("%s", hdev->name);
+
+	bacpy(&ev.addr.bdaddr, bdaddr);
+	ev.addr.type = link_to_mgmt(link_type, addr_type);
+
+	return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev),
+			  NULL);
+}
+
+static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+					u8 link_type, u8 addr_type, u8 status,
+					u8 opcode)
+{
+	struct pending_cmd *cmd;
+	struct mgmt_rp_user_confirm_reply rp;
+	int err;
+
+	cmd = mgmt_pending_find(opcode, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	bacpy(&rp.addr.bdaddr, bdaddr);
+	rp.addr.type = link_to_mgmt(link_type, addr_type);
+	err = cmd_complete(cmd->sk, hdev->id, opcode, mgmt_status(status),
+			   &rp, sizeof(rp));
+
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
+int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				     u8 link_type, u8 addr_type, u8 status)
+{
+	return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
+					  status, MGMT_OP_USER_CONFIRM_REPLY);
+}
+
+int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+					 u8 link_type, u8 addr_type, u8 status)
+{
+	return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
+					  status, MGMT_OP_USER_CONFIRM_NEG_REPLY);
+}
+
+int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				     u8 link_type, u8 addr_type, u8 status)
+{
+	return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
+					  status, MGMT_OP_USER_PASSKEY_REPLY);
+}
+
+int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+					 u8 link_type, u8 addr_type, u8 status)
+{
+	return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
+					  status, MGMT_OP_USER_PASSKEY_NEG_REPLY);
+}
+
+int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		     u8 addr_type, u8 status)
+{
+	struct mgmt_ev_auth_failed ev;
+
+	bacpy(&ev.addr.bdaddr, bdaddr);
+	ev.addr.type = link_to_mgmt(link_type, addr_type);
+	ev.status = mgmt_status(status);
+
+	return mgmt_event(MGMT_EV_AUTH_FAILED, hdev, &ev, sizeof(ev), NULL);
+}
+
+int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
+{
+	struct cmd_lookup match = { NULL, hdev };
+	bool changed = false;
+	int err = 0;
+
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+		mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev,
+				     cmd_status_rsp, &mgmt_err);
+		return 0;
+	}
+
+	if (test_bit(HCI_AUTH, &hdev->flags)) {
+		if (!test_and_set_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
+			changed = true;
+	} else {
+		if (test_and_clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
+			changed = true;
+	}
+
+	mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp,
+			     &match);
+
+	if (changed)
+		err = new_settings(hdev, match.sk);
+
+	if (match.sk)
+		sock_put(match.sk);
+
+	return err;
+}
+
+static int clear_eir(struct hci_dev *hdev)
+{
+	struct hci_cp_write_eir cp;
+
+	if (!(hdev->features[6] & LMP_EXT_INQ))
+		return 0;
+
+	memset(hdev->eir, 0, sizeof(hdev->eir));
+
+	memset(&cp, 0, sizeof(cp));
+
+	return hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
+}
+
+int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
+{
+	struct cmd_lookup match = { NULL, hdev };
+	bool changed = false;
+	int err = 0;
+
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+
+		if (enable && test_and_clear_bit(HCI_SSP_ENABLED,
+						 &hdev->dev_flags))
+			err = new_settings(hdev, NULL);
+
+		mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
+				     &mgmt_err);
+
+		return err;
+	}
+
+	if (enable) {
+		if (!test_and_set_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
+			changed = true;
+	} else {
+		if (test_and_clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
+			changed = true;
+	}
+
+	mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
+
+	if (changed)
+		err = new_settings(hdev, match.sk);
+
+	if (match.sk)
+		sock_put(match.sk);
+
+	if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
+		update_eir(hdev);
+	else
+		clear_eir(hdev);
+
+	return err;
+}
+
+static void class_rsp(struct pending_cmd *cmd, void *data)
+{
+	struct cmd_lookup *match = data;
+
+	cmd_complete(cmd->sk, cmd->index, cmd->opcode, match->mgmt_status,
+		     match->hdev->dev_class, 3);
+
+	list_del(&cmd->list);
+
+	if (match->sk == NULL) {
+		match->sk = cmd->sk;
+		sock_hold(match->sk);
+	}
+
+	mgmt_pending_free(cmd);
+}
+
+int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
+				   u8 status)
+{
+	struct cmd_lookup match = { NULL, hdev, mgmt_status(status) };
+	int err = 0;
+
+	clear_bit(HCI_PENDING_CLASS, &hdev->dev_flags);
+
+	mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, class_rsp, &match);
+	mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, class_rsp, &match);
+	mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, class_rsp, &match);
+
+	if (!status)
+		err = mgmt_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev, dev_class,
+				 3, NULL);
+
+	if (match.sk)
+		sock_put(match.sk);
+
+	return err;
+}
+
+int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
+{
+	struct pending_cmd *cmd;
+	struct mgmt_cp_set_local_name ev;
+	bool changed = false;
+	int err = 0;
+
+	if (memcmp(name, hdev->dev_name, sizeof(hdev->dev_name)) != 0) {
+		memcpy(hdev->dev_name, name, sizeof(hdev->dev_name));
+		changed = true;
+	}
+
+	memset(&ev, 0, sizeof(ev));
+	memcpy(ev.name, name, HCI_MAX_NAME_LENGTH);
+	memcpy(ev.short_name, hdev->short_name, HCI_MAX_SHORT_NAME_LENGTH);
+
+	cmd = mgmt_pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
+	if (!cmd)
+		goto send_event;
+
+	/* Always assume that either the short or the complete name has
+	 * changed if there was a pending mgmt command */
+	changed = true;
+
+	if (status) {
+		err = cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
+				 mgmt_status(status));
+		goto failed;
+	}
+
+	err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0, &ev,
+			   sizeof(ev));
+	if (err < 0)
+		goto failed;
+
+send_event:
+	if (changed)
+		err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev,
+				 sizeof(ev), cmd ? cmd->sk : NULL);
+
+	update_eir(hdev);
+
+failed:
+	if (cmd)
+		mgmt_pending_remove(cmd);
+	return err;
+}
+
+int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
+					    u8 *randomizer, u8 status)
+{
+	struct pending_cmd *cmd;
+	int err;
+
+	BT_DBG("%s status %u", hdev->name, status);
+
+	cmd = mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	if (status) {
+		err = cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
+				 mgmt_status(status));
+	} else {
+		struct mgmt_rp_read_local_oob_data rp;
+
+		memcpy(rp.hash, hash, sizeof(rp.hash));
+		memcpy(rp.randomizer, randomizer, sizeof(rp.randomizer));
+
+		err = cmd_complete(cmd->sk, hdev->id,
+				   MGMT_OP_READ_LOCAL_OOB_DATA, 0, &rp,
+				   sizeof(rp));
+	}
+
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
+int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
+{
+	struct cmd_lookup match = { NULL, hdev };
+	bool changed = false;
+	int err = 0;
+
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+
+		if (enable && test_and_clear_bit(HCI_LE_ENABLED,
+						 &hdev->dev_flags))
+		  err = new_settings(hdev, NULL);
+
+		mgmt_pending_foreach(MGMT_OP_SET_LE, hdev,
+				     cmd_status_rsp, &mgmt_err);
+
+		return err;
+	}
+
+	if (enable) {
+		if (!test_and_set_bit(HCI_LE_ENABLED, &hdev->dev_flags))
+			changed = true;
+	} else {
+		if (test_and_clear_bit(HCI_LE_ENABLED, &hdev->dev_flags))
+			changed = true;
+	}
+
+	mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match);
+
+	if (changed)
+		err = new_settings(hdev, match.sk);
+
+	if (match.sk)
+		sock_put(match.sk);
+
+	return err;
+}
+
+int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		      u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8
+		      ssp, u8 *eir, u16 eir_len)
+{
+	char buf[512];
+	struct mgmt_ev_device_found *ev = (void *) buf;
+	size_t ev_size;
+
+	/* Leave 5 bytes for a potential CoD field */
+	if (sizeof(*ev) + eir_len + 5 > sizeof(buf))
+		return -EINVAL;
+
+	memset(buf, 0, sizeof(buf));
+
+	bacpy(&ev->addr.bdaddr, bdaddr);
+	ev->addr.type = link_to_mgmt(link_type, addr_type);
+	ev->rssi = rssi;
+	if (cfm_name)
+		ev->flags[0] |= MGMT_DEV_FOUND_CONFIRM_NAME;
+	if (!ssp)
+		ev->flags[0] |= MGMT_DEV_FOUND_LEGACY_PAIRING;
+
+	if (eir_len > 0)
+		memcpy(ev->eir, eir, eir_len);
+
+	if (dev_class && !eir_has_data_type(ev->eir, eir_len, EIR_CLASS_OF_DEV))
+		eir_len = eir_append_data(ev->eir, eir_len, EIR_CLASS_OF_DEV,
+					  dev_class, 3);
+
+	put_unaligned_le16(eir_len, &ev->eir_len);
+
+	ev_size = sizeof(*ev) + eir_len;
+
+	return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
+}
+
+int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		     u8 addr_type, s8 rssi, u8 *name, u8 name_len)
+{
+	struct mgmt_ev_device_found *ev;
+	char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2];
+	u16 eir_len;
+
+	ev = (struct mgmt_ev_device_found *) buf;
+
+	memset(buf, 0, sizeof(buf));
+
+	bacpy(&ev->addr.bdaddr, bdaddr);
+	ev->addr.type = link_to_mgmt(link_type, addr_type);
+	ev->rssi = rssi;
+
+	eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE, name,
+				  name_len);
+
+	put_unaligned_le16(eir_len, &ev->eir_len);
+
+	return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev,
+			  sizeof(*ev) + eir_len, NULL);
+}
+
+int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status)
+{
+	struct pending_cmd *cmd;
+	u8 type;
+	int err;
+
+	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+
+	cmd = mgmt_pending_find(MGMT_OP_START_DISCOVERY, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	type = hdev->discovery.type;
+
+	err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status),
+			   &type, sizeof(type));
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
+int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status)
+{
+	struct pending_cmd *cmd;
+	int err;
+
+	cmd = mgmt_pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status),
+			   &hdev->discovery.type, sizeof(hdev->discovery.type));
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
+int mgmt_discovering(struct hci_dev *hdev, u8 discovering)
+{
+	struct mgmt_ev_discovering ev;
+	struct pending_cmd *cmd;
+
+	BT_DBG("%s discovering %u", hdev->name, discovering);
+
+	if (discovering)
+		cmd = mgmt_pending_find(MGMT_OP_START_DISCOVERY, hdev);
+	else
+		cmd = mgmt_pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
+
+	if (cmd != NULL) {
+		u8 type = hdev->discovery.type;
+
+		cmd_complete(cmd->sk, hdev->id, cmd->opcode, 0, &type,
+			     sizeof(type));
+		mgmt_pending_remove(cmd);
+	}
+
+	memset(&ev, 0, sizeof(ev));
+	ev.type = hdev->discovery.type;
+	ev.discovering = discovering;
+
+	return mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
+}
+
+int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
+{
+	struct pending_cmd *cmd;
+	struct mgmt_ev_device_blocked ev;
+
+	cmd = mgmt_pending_find(MGMT_OP_BLOCK_DEVICE, hdev);
+
+	bacpy(&ev.addr.bdaddr, bdaddr);
+	ev.addr.type = type;
+
+	return mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &ev, sizeof(ev),
+			  cmd ? cmd->sk : NULL);
+}
+
+int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
+{
+	struct pending_cmd *cmd;
+	struct mgmt_ev_device_unblocked ev;
+
+	cmd = mgmt_pending_find(MGMT_OP_UNBLOCK_DEVICE, hdev);
+
+	bacpy(&ev.addr.bdaddr, bdaddr);
+	ev.addr.type = type;
+
+	return mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &ev, sizeof(ev),
+			  cmd ? cmd->sk : NULL);
+}
+
+module_param(enable_hs, bool, 0644);
+MODULE_PARM_DESC(enable_hs, "Enable High Speed support");
+
+module_param(enable_le, bool, 0644);
+MODULE_PARM_DESC(enable_le, "Enable Low Energy support");
diff --git a/net/bluetooth_tizen/rfcomm/Kconfig b/net/bluetooth_tizen/rfcomm/Kconfig
new file mode 100644
index 0000000..22e718b
--- /dev/null
+++ b/net/bluetooth_tizen/rfcomm/Kconfig
@@ -0,0 +1,17 @@
+config BT_RFCOMM
+	tristate "RFCOMM protocol support"
+	depends on BT
+	help
+	  RFCOMM provides connection oriented stream transport.  RFCOMM
+	  support is required for Dialup Networking, OBEX and other Bluetooth
+	  applications.
+
+	  Say Y here to compile RFCOMM support into the kernel or say M to
+	  compile it as module (rfcomm).
+
+config BT_RFCOMM_TTY
+	bool "RFCOMM TTY support"
+	depends on BT_RFCOMM
+	help
+	  This option enables TTY emulation support for RFCOMM channels.
+
diff --git a/net/bluetooth_tizen/rfcomm/Makefile b/net/bluetooth_tizen/rfcomm/Makefile
new file mode 100644
index 0000000..fe07988
--- /dev/null
+++ b/net/bluetooth_tizen/rfcomm/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for the Linux Bluetooth RFCOMM layer.
+#
+
+obj-$(CONFIG_BT_RFCOMM) += rfcomm.o
+
+rfcomm-y			:= core.o sock.o
+rfcomm-$(CONFIG_BT_RFCOMM_TTY)	+= tty.o
diff --git a/net/bluetooth_tizen/rfcomm/core.c b/net/bluetooth_tizen/rfcomm/core.c
new file mode 100644
index 0000000..8a60238
--- /dev/null
+++ b/net/bluetooth_tizen/rfcomm/core.c
@@ -0,0 +1,2245 @@
+/*
+   RFCOMM implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
+   Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * Bluetooth RFCOMM core.
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/init.h>
+#include <linux/wait.h>
+#include <linux/device.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/net.h>
+#include <linux/mutex.h>
+#include <linux/kthread.h>
+#include <linux/slab.h>
+
+#include <net/sock.h>
+#include <linux/uaccess.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+#include <net/bluetooth/rfcomm.h>
+
+#define VERSION "1.11"
+
+static bool disable_cfc;
+static bool l2cap_ertm;
+static int channel_mtu = -1;
+static unsigned int l2cap_mtu = RFCOMM_MAX_L2CAP_MTU;
+
+static struct task_struct *rfcomm_thread;
+
+static DEFINE_MUTEX(rfcomm_mutex);
+#define rfcomm_lock()	mutex_lock(&rfcomm_mutex)
+#define rfcomm_unlock()	mutex_unlock(&rfcomm_mutex)
+
+
+static LIST_HEAD(session_list);
+
+static int rfcomm_send_frame(struct rfcomm_session *s, u8 *data, int len);
+static int rfcomm_send_sabm(struct rfcomm_session *s, u8 dlci);
+static int rfcomm_send_disc(struct rfcomm_session *s, u8 dlci);
+static int rfcomm_queue_disc(struct rfcomm_dlc *d);
+static int rfcomm_send_nsc(struct rfcomm_session *s, int cr, u8 type);
+static int rfcomm_send_pn(struct rfcomm_session *s, int cr, struct rfcomm_dlc *d);
+static int rfcomm_send_msc(struct rfcomm_session *s, int cr, u8 dlci, u8 v24_sig);
+static int rfcomm_send_test(struct rfcomm_session *s, int cr, u8 *pattern, int len);
+static int rfcomm_send_credits(struct rfcomm_session *s, u8 addr, u8 credits);
+static void rfcomm_make_uih(struct sk_buff *skb, u8 addr);
+
+static void rfcomm_process_connect(struct rfcomm_session *s);
+
+static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src,
+							bdaddr_t *dst,
+							u8 sec_level,
+							int *err);
+static struct rfcomm_session *rfcomm_session_get(bdaddr_t *src, bdaddr_t *dst);
+static void rfcomm_session_del(struct rfcomm_session *s);
+
+/* ---- RFCOMM frame parsing macros ---- */
+#define __get_dlci(b)     ((b & 0xfc) >> 2)
+#define __get_channel(b)  ((b & 0xf8) >> 3)
+#define __get_dir(b)      ((b & 0x04) >> 2)
+#define __get_type(b)     ((b & 0xef))
+
+#define __test_ea(b)      ((b & 0x01))
+#define __test_cr(b)      ((b & 0x02))
+#define __test_pf(b)      ((b & 0x10))
+
+#define __addr(cr, dlci)       (((dlci & 0x3f) << 2) | (cr << 1) | 0x01)
+#define __ctrl(type, pf)       (((type & 0xef) | (pf << 4)))
+#define __dlci(dir, chn)       (((chn & 0x1f) << 1) | dir)
+#define __srv_channel(dlci)    (dlci >> 1)
+#define __dir(dlci)            (dlci & 0x01)
+
+#define __len8(len)       (((len) << 1) | 1)
+#define __len16(len)      ((len) << 1)
+
+/* MCC macros */
+#define __mcc_type(cr, type)   (((type << 2) | (cr << 1) | 0x01))
+#define __get_mcc_type(b) ((b & 0xfc) >> 2)
+#define __get_mcc_len(b)  ((b & 0xfe) >> 1)
+
+/* RPN macros */
+#define __rpn_line_settings(data, stop, parity)  ((data & 0x3) | ((stop & 0x1) << 2) | ((parity & 0x7) << 3))
+#define __get_rpn_data_bits(line) ((line) & 0x3)
+#define __get_rpn_stop_bits(line) (((line) >> 2) & 0x1)
+#define __get_rpn_parity(line)    (((line) >> 3) & 0x7)
+
+static inline void rfcomm_schedule(void)
+{
+	if (!rfcomm_thread)
+		return;
+	wake_up_process(rfcomm_thread);
+}
+
+static inline void rfcomm_session_put(struct rfcomm_session *s)
+{
+	if (atomic_dec_and_test(&s->refcnt))
+		rfcomm_session_del(s);
+}
+
+/* ---- RFCOMM FCS computation ---- */
+
+/* reversed, 8-bit, poly=0x07 */
+static unsigned char rfcomm_crc_table[256] = {
+	0x00, 0x91, 0xe3, 0x72, 0x07, 0x96, 0xe4, 0x75,
+	0x0e, 0x9f, 0xed, 0x7c, 0x09, 0x98, 0xea, 0x7b,
+	0x1c, 0x8d, 0xff, 0x6e, 0x1b, 0x8a, 0xf8, 0x69,
+	0x12, 0x83, 0xf1, 0x60, 0x15, 0x84, 0xf6, 0x67,
+
+	0x38, 0xa9, 0xdb, 0x4a, 0x3f, 0xae, 0xdc, 0x4d,
+	0x36, 0xa7, 0xd5, 0x44, 0x31, 0xa0, 0xd2, 0x43,
+	0x24, 0xb5, 0xc7, 0x56, 0x23, 0xb2, 0xc0, 0x51,
+	0x2a, 0xbb, 0xc9, 0x58, 0x2d, 0xbc, 0xce, 0x5f,
+
+	0x70, 0xe1, 0x93, 0x02, 0x77, 0xe6, 0x94, 0x05,
+	0x7e, 0xef, 0x9d, 0x0c, 0x79, 0xe8, 0x9a, 0x0b,
+	0x6c, 0xfd, 0x8f, 0x1e, 0x6b, 0xfa, 0x88, 0x19,
+	0x62, 0xf3, 0x81, 0x10, 0x65, 0xf4, 0x86, 0x17,
+
+	0x48, 0xd9, 0xab, 0x3a, 0x4f, 0xde, 0xac, 0x3d,
+	0x46, 0xd7, 0xa5, 0x34, 0x41, 0xd0, 0xa2, 0x33,
+	0x54, 0xc5, 0xb7, 0x26, 0x53, 0xc2, 0xb0, 0x21,
+	0x5a, 0xcb, 0xb9, 0x28, 0x5d, 0xcc, 0xbe, 0x2f,
+
+	0xe0, 0x71, 0x03, 0x92, 0xe7, 0x76, 0x04, 0x95,
+	0xee, 0x7f, 0x0d, 0x9c, 0xe9, 0x78, 0x0a, 0x9b,
+	0xfc, 0x6d, 0x1f, 0x8e, 0xfb, 0x6a, 0x18, 0x89,
+	0xf2, 0x63, 0x11, 0x80, 0xf5, 0x64, 0x16, 0x87,
+
+	0xd8, 0x49, 0x3b, 0xaa, 0xdf, 0x4e, 0x3c, 0xad,
+	0xd6, 0x47, 0x35, 0xa4, 0xd1, 0x40, 0x32, 0xa3,
+	0xc4, 0x55, 0x27, 0xb6, 0xc3, 0x52, 0x20, 0xb1,
+	0xca, 0x5b, 0x29, 0xb8, 0xcd, 0x5c, 0x2e, 0xbf,
+
+	0x90, 0x01, 0x73, 0xe2, 0x97, 0x06, 0x74, 0xe5,
+	0x9e, 0x0f, 0x7d, 0xec, 0x99, 0x08, 0x7a, 0xeb,
+	0x8c, 0x1d, 0x6f, 0xfe, 0x8b, 0x1a, 0x68, 0xf9,
+	0x82, 0x13, 0x61, 0xf0, 0x85, 0x14, 0x66, 0xf7,
+
+	0xa8, 0x39, 0x4b, 0xda, 0xaf, 0x3e, 0x4c, 0xdd,
+	0xa6, 0x37, 0x45, 0xd4, 0xa1, 0x30, 0x42, 0xd3,
+	0xb4, 0x25, 0x57, 0xc6, 0xb3, 0x22, 0x50, 0xc1,
+	0xba, 0x2b, 0x59, 0xc8, 0xbd, 0x2c, 0x5e, 0xcf
+};
+
+/* CRC on 2 bytes */
+#define __crc(data) (rfcomm_crc_table[rfcomm_crc_table[0xff ^ data[0]] ^ data[1]])
+
+/* FCS on 2 bytes */
+static inline u8 __fcs(u8 *data)
+{
+	return 0xff - __crc(data);
+}
+
+/* FCS on 3 bytes */
+static inline u8 __fcs2(u8 *data)
+{
+	return 0xff - rfcomm_crc_table[__crc(data) ^ data[2]];
+}
+
+/* Check FCS */
+static inline int __check_fcs(u8 *data, int type, u8 fcs)
+{
+	u8 f = __crc(data);
+
+	if (type != RFCOMM_UIH)
+		f = rfcomm_crc_table[f ^ data[2]];
+
+	return rfcomm_crc_table[f ^ fcs] != 0xcf;
+}
+
+/* ---- L2CAP callbacks ---- */
+static void rfcomm_l2state_change(struct sock *sk)
+{
+	BT_DBG("%p state %d", sk, sk->sk_state);
+	rfcomm_schedule();
+}
+
+static void rfcomm_l2data_ready(struct sock *sk, int bytes)
+{
+	BT_DBG("%p bytes %d", sk, bytes);
+	rfcomm_schedule();
+}
+
+static int rfcomm_l2sock_create(struct socket **sock)
+{
+	int err;
+
+	BT_DBG("");
+
+	err = sock_create_kern(PF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP, sock);
+	if (!err) {
+		struct sock *sk = (*sock)->sk;
+		sk->sk_data_ready   = rfcomm_l2data_ready;
+		sk->sk_state_change = rfcomm_l2state_change;
+	}
+	return err;
+}
+
+static inline int rfcomm_check_security(struct rfcomm_dlc *d)
+{
+	struct sock *sk = d->session->sock->sk;
+	struct l2cap_conn *conn = l2cap_pi(sk)->chan->conn;
+
+	__u8 auth_type;
+
+	switch (d->sec_level) {
+	case BT_SECURITY_HIGH:
+		auth_type = HCI_AT_GENERAL_BONDING_MITM;
+		break;
+	case BT_SECURITY_MEDIUM:
+		auth_type = HCI_AT_GENERAL_BONDING;
+		break;
+	default:
+		auth_type = HCI_AT_NO_BONDING;
+		break;
+	}
+
+	return hci_conn_security(conn->hcon, d->sec_level, auth_type);
+}
+
+static void rfcomm_session_timeout(unsigned long arg)
+{
+	struct rfcomm_session *s = (void *) arg;
+
+	BT_DBG("session %p state %ld", s, s->state);
+
+	set_bit(RFCOMM_TIMED_OUT, &s->flags);
+	rfcomm_schedule();
+}
+
+static void rfcomm_session_set_timer(struct rfcomm_session *s, long timeout)
+{
+	BT_DBG("session %p state %ld timeout %ld", s, s->state, timeout);
+
+	if (!mod_timer(&s->timer, jiffies + timeout))
+		rfcomm_session_hold(s);
+}
+
+static void rfcomm_session_clear_timer(struct rfcomm_session *s)
+{
+	BT_DBG("session %p state %ld", s, s->state);
+
+	if (timer_pending(&s->timer) && del_timer(&s->timer))
+		rfcomm_session_put(s);
+}
+
+/* ---- RFCOMM DLCs ---- */
+static void rfcomm_dlc_timeout(unsigned long arg)
+{
+	struct rfcomm_dlc *d = (void *) arg;
+
+	BT_DBG("dlc %p state %ld", d, d->state);
+
+	set_bit(RFCOMM_TIMED_OUT, &d->flags);
+	rfcomm_dlc_put(d);
+	rfcomm_schedule();
+}
+
+static void rfcomm_dlc_set_timer(struct rfcomm_dlc *d, long timeout)
+{
+	BT_DBG("dlc %p state %ld timeout %ld", d, d->state, timeout);
+
+	if (!mod_timer(&d->timer, jiffies + timeout))
+		rfcomm_dlc_hold(d);
+}
+
+static void rfcomm_dlc_clear_timer(struct rfcomm_dlc *d)
+{
+	BT_DBG("dlc %p state %ld", d, d->state);
+
+	if (timer_pending(&d->timer) && del_timer(&d->timer))
+		rfcomm_dlc_put(d);
+}
+
+static void rfcomm_dlc_clear_state(struct rfcomm_dlc *d)
+{
+	BT_DBG("%p", d);
+
+	d->state      = BT_OPEN;
+	d->flags      = 0;
+	d->mscex      = 0;
+	d->sec_level  = BT_SECURITY_LOW;
+	d->mtu        = RFCOMM_DEFAULT_MTU;
+	d->v24_sig    = RFCOMM_V24_RTC | RFCOMM_V24_RTR | RFCOMM_V24_DV;
+
+	d->cfc        = RFCOMM_CFC_DISABLED;
+	d->rx_credits = RFCOMM_DEFAULT_CREDITS;
+}
+
+struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio)
+{
+	struct rfcomm_dlc *d = kzalloc(sizeof(*d), prio);
+
+	if (!d)
+		return NULL;
+
+	setup_timer(&d->timer, rfcomm_dlc_timeout, (unsigned long)d);
+
+	skb_queue_head_init(&d->tx_queue);
+	spin_lock_init(&d->lock);
+	atomic_set(&d->refcnt, 1);
+
+	rfcomm_dlc_clear_state(d);
+
+	BT_DBG("%p", d);
+
+	return d;
+}
+
+void rfcomm_dlc_free(struct rfcomm_dlc *d)
+{
+	BT_DBG("%p", d);
+
+	skb_queue_purge(&d->tx_queue);
+	kfree(d);
+}
+
+static void rfcomm_dlc_link(struct rfcomm_session *s, struct rfcomm_dlc *d)
+{
+	BT_DBG("dlc %p session %p", d, s);
+
+	rfcomm_session_hold(s);
+
+	rfcomm_session_clear_timer(s);
+	rfcomm_dlc_hold(d);
+	list_add(&d->list, &s->dlcs);
+	d->session = s;
+}
+
+static void rfcomm_dlc_unlink(struct rfcomm_dlc *d)
+{
+	struct rfcomm_session *s = d->session;
+
+	BT_DBG("dlc %p refcnt %d session %p", d, atomic_read(&d->refcnt), s);
+
+	list_del(&d->list);
+	d->session = NULL;
+	rfcomm_dlc_put(d);
+
+	if (list_empty(&s->dlcs))
+		rfcomm_session_set_timer(s, RFCOMM_IDLE_TIMEOUT);
+
+	rfcomm_session_put(s);
+}
+
+static struct rfcomm_dlc *rfcomm_dlc_get(struct rfcomm_session *s, u8 dlci)
+{
+	struct rfcomm_dlc *d;
+
+	list_for_each_entry(d, &s->dlcs, list)
+		if (d->dlci == dlci)
+			return d;
+
+	return NULL;
+}
+
+static int __rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst, u8 channel)
+{
+	struct rfcomm_session *s;
+	int err = 0;
+	u8 dlci;
+
+	BT_DBG("dlc %p state %ld %s %s channel %d",
+			d, d->state, batostr(src), batostr(dst), channel);
+
+	if (channel < 1 || channel > 30)
+		return -EINVAL;
+
+	if (d->state != BT_OPEN && d->state != BT_CLOSED)
+		return 0;
+
+	s = rfcomm_session_get(src, dst);
+	if (!s) {
+		s = rfcomm_session_create(src, dst, d->sec_level, &err);
+		if (!s)
+			return err;
+	}
+
+	dlci = __dlci(!s->initiator, channel);
+
+	/* Check if DLCI already exists */
+	if (rfcomm_dlc_get(s, dlci))
+		return -EBUSY;
+
+	rfcomm_dlc_clear_state(d);
+
+	d->dlci     = dlci;
+	d->addr     = __addr(s->initiator, dlci);
+	d->priority = 7;
+
+	d->state = BT_CONFIG;
+	rfcomm_dlc_link(s, d);
+
+	d->out = 1;
+
+	d->mtu = s->mtu;
+	d->cfc = (s->cfc == RFCOMM_CFC_UNKNOWN) ? 0 : s->cfc;
+
+	if (s->state == BT_CONNECTED) {
+		if (rfcomm_check_security(d))
+			rfcomm_send_pn(s, 1, d);
+		else
+			set_bit(RFCOMM_AUTH_PENDING, &d->flags);
+	}
+
+	rfcomm_dlc_set_timer(d, RFCOMM_CONN_TIMEOUT);
+
+	return 0;
+}
+
+int rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst, u8 channel)
+{
+	int r;
+
+	rfcomm_lock();
+
+	r = __rfcomm_dlc_open(d, src, dst, channel);
+
+	rfcomm_unlock();
+	return r;
+}
+
+static int __rfcomm_dlc_close(struct rfcomm_dlc *d, int err)
+{
+	struct rfcomm_session *s = d->session;
+	if (!s)
+		return 0;
+
+	BT_DBG("dlc %p state %ld dlci %d err %d session %p",
+			d, d->state, d->dlci, err, s);
+
+	switch (d->state) {
+	case BT_CONNECT:
+	case BT_CONFIG:
+		if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
+			set_bit(RFCOMM_AUTH_REJECT, &d->flags);
+			rfcomm_schedule();
+			break;
+		}
+		/* Fall through */
+
+	case BT_CONNECTED:
+		d->state = BT_DISCONN;
+		if (skb_queue_empty(&d->tx_queue)) {
+			rfcomm_send_disc(s, d->dlci);
+			rfcomm_dlc_set_timer(d, RFCOMM_DISC_TIMEOUT);
+		} else {
+			rfcomm_queue_disc(d);
+			rfcomm_dlc_set_timer(d, RFCOMM_DISC_TIMEOUT * 2);
+		}
+		break;
+
+	case BT_OPEN:
+	case BT_CONNECT2:
+		if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
+			set_bit(RFCOMM_AUTH_REJECT, &d->flags);
+			rfcomm_schedule();
+			break;
+		}
+		/* Fall through */
+
+	default:
+		rfcomm_dlc_clear_timer(d);
+
+		rfcomm_dlc_lock(d);
+		d->state = BT_CLOSED;
+		d->state_change(d, err);
+		rfcomm_dlc_unlock(d);
+
+		skb_queue_purge(&d->tx_queue);
+		rfcomm_dlc_unlink(d);
+	}
+
+	return 0;
+}
+
+int rfcomm_dlc_close(struct rfcomm_dlc *d, int err)
+{
+	int r;
+
+	rfcomm_lock();
+
+	r = __rfcomm_dlc_close(d, err);
+
+	rfcomm_unlock();
+	return r;
+}
+
+int rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb)
+{
+	int len = skb->len;
+
+	if (d->state != BT_CONNECTED)
+		return -ENOTCONN;
+
+	BT_DBG("dlc %p mtu %d len %d", d, d->mtu, len);
+
+	if (len > d->mtu)
+		return -EINVAL;
+
+	rfcomm_make_uih(skb, d->addr);
+	skb_queue_tail(&d->tx_queue, skb);
+
+	if (!test_bit(RFCOMM_TX_THROTTLED, &d->flags))
+		rfcomm_schedule();
+	return len;
+}
+
+void __rfcomm_dlc_throttle(struct rfcomm_dlc *d)
+{
+	BT_DBG("dlc %p state %ld", d, d->state);
+
+	if (!d->cfc) {
+		d->v24_sig |= RFCOMM_V24_FC;
+		set_bit(RFCOMM_MSC_PENDING, &d->flags);
+	}
+	rfcomm_schedule();
+}
+
+void __rfcomm_dlc_unthrottle(struct rfcomm_dlc *d)
+{
+	BT_DBG("dlc %p state %ld", d, d->state);
+
+	if (!d->cfc) {
+		d->v24_sig &= ~RFCOMM_V24_FC;
+		set_bit(RFCOMM_MSC_PENDING, &d->flags);
+	}
+	rfcomm_schedule();
+}
+
+/*
+   Set/get modem status functions use _local_ status i.e. what we report
+   to the other side.
+   Remote status is provided by dlc->modem_status() callback.
+ */
+int rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig)
+{
+	BT_DBG("dlc %p state %ld v24_sig 0x%x",
+			d, d->state, v24_sig);
+
+	if (test_bit(RFCOMM_RX_THROTTLED, &d->flags))
+		v24_sig |= RFCOMM_V24_FC;
+	else
+		v24_sig &= ~RFCOMM_V24_FC;
+
+	d->v24_sig = v24_sig;
+
+	if (!test_and_set_bit(RFCOMM_MSC_PENDING, &d->flags))
+		rfcomm_schedule();
+
+	return 0;
+}
+
+int rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig)
+{
+	BT_DBG("dlc %p state %ld v24_sig 0x%x",
+			d, d->state, d->v24_sig);
+
+	*v24_sig = d->v24_sig;
+	return 0;
+}
+
+/* ---- RFCOMM sessions ---- */
+static struct rfcomm_session *rfcomm_session_add(struct socket *sock, int state)
+{
+	struct rfcomm_session *s = kzalloc(sizeof(*s), GFP_KERNEL);
+
+	if (!s)
+		return NULL;
+
+	BT_DBG("session %p sock %p", s, sock);
+
+	setup_timer(&s->timer, rfcomm_session_timeout, (unsigned long) s);
+
+	INIT_LIST_HEAD(&s->dlcs);
+	s->state = state;
+	s->sock  = sock;
+
+	s->mtu = RFCOMM_DEFAULT_MTU;
+	s->cfc = disable_cfc ? RFCOMM_CFC_DISABLED : RFCOMM_CFC_UNKNOWN;
+
+	/* Do not increment module usage count for listening sessions.
+	 * Otherwise we won't be able to unload the module. */
+	if (state != BT_LISTEN)
+		if (!try_module_get(THIS_MODULE)) {
+			kfree(s);
+			return NULL;
+		}
+
+	list_add(&s->list, &session_list);
+
+	return s;
+}
+
+static void rfcomm_session_del(struct rfcomm_session *s)
+{
+	int state = s->state;
+
+	BT_DBG("session %p state %ld", s, s->state);
+
+	list_del(&s->list);
+
+	if (state == BT_CONNECTED)
+		rfcomm_send_disc(s, 0);
+
+	rfcomm_session_clear_timer(s);
+	sock_release(s->sock);
+	kfree(s);
+
+	if (state != BT_LISTEN)
+		module_put(THIS_MODULE);
+}
+
+static struct rfcomm_session *rfcomm_session_get(bdaddr_t *src, bdaddr_t *dst)
+{
+	struct rfcomm_session *s;
+	struct list_head *p, *n;
+	struct bt_sock *sk;
+	list_for_each_safe(p, n, &session_list) {
+		s = list_entry(p, struct rfcomm_session, list);
+		sk = bt_sk(s->sock->sk);
+
+		if ((!bacmp(src, BDADDR_ANY) || !bacmp(&sk->src, src)) &&
+				!bacmp(&sk->dst, dst))
+			return s;
+	}
+	return NULL;
+}
+
+static void rfcomm_session_close(struct rfcomm_session *s, int err)
+{
+	struct rfcomm_dlc *d;
+	struct list_head *p, *n;
+
+	BT_DBG("session %p state %ld err %d", s, s->state, err);
+
+	rfcomm_session_hold(s);
+
+	s->state = BT_CLOSED;
+
+	/* Close all dlcs */
+	list_for_each_safe(p, n, &s->dlcs) {
+		d = list_entry(p, struct rfcomm_dlc, list);
+		d->state = BT_CLOSED;
+		__rfcomm_dlc_close(d, err);
+	}
+
+	rfcomm_session_clear_timer(s);
+	rfcomm_session_put(s);
+}
+
+static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src,
+							bdaddr_t *dst,
+							u8 sec_level,
+							int *err)
+{
+	struct rfcomm_session *s = NULL;
+	struct sockaddr_l2 addr;
+	struct socket *sock;
+	struct sock *sk;
+
+	BT_DBG("%s %s", batostr(src), batostr(dst));
+
+	*err = rfcomm_l2sock_create(&sock);
+	if (*err < 0)
+		return NULL;
+
+	bacpy(&addr.l2_bdaddr, src);
+	addr.l2_family = AF_BLUETOOTH;
+	addr.l2_psm    = 0;
+	addr.l2_cid    = 0;
+	*err = kernel_bind(sock, (struct sockaddr *) &addr, sizeof(addr));
+	if (*err < 0)
+		goto failed;
+
+	/* Set L2CAP options */
+	sk = sock->sk;
+	lock_sock(sk);
+	l2cap_pi(sk)->chan->imtu = l2cap_mtu;
+	l2cap_pi(sk)->chan->sec_level = sec_level;
+	if (l2cap_ertm)
+		l2cap_pi(sk)->chan->mode = L2CAP_MODE_ERTM;
+	release_sock(sk);
+
+	s = rfcomm_session_add(sock, BT_BOUND);
+	if (!s) {
+		*err = -ENOMEM;
+		goto failed;
+	}
+
+	s->initiator = 1;
+
+	bacpy(&addr.l2_bdaddr, dst);
+	addr.l2_family = AF_BLUETOOTH;
+	addr.l2_psm    = cpu_to_le16(RFCOMM_PSM);
+	addr.l2_cid    = 0;
+	*err = kernel_connect(sock, (struct sockaddr *) &addr, sizeof(addr), O_NONBLOCK);
+	if (*err == 0 || *err == -EINPROGRESS)
+		return s;
+
+	rfcomm_session_del(s);
+	return NULL;
+
+failed:
+	sock_release(sock);
+	return NULL;
+}
+
+void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src, bdaddr_t *dst)
+{
+	struct sock *sk = s->sock->sk;
+	if (src)
+		bacpy(src, &bt_sk(sk)->src);
+	if (dst)
+		bacpy(dst, &bt_sk(sk)->dst);
+}
+
+/* ---- RFCOMM frame sending ---- */
+static int rfcomm_send_frame(struct rfcomm_session *s, u8 *data, int len)
+{
+	struct kvec iv = { data, len };
+	struct msghdr msg;
+
+	BT_DBG("session %p len %d", s, len);
+
+	memset(&msg, 0, sizeof(msg));
+
+	return kernel_sendmsg(s->sock, &msg, &iv, 1, len);
+}
+
+static int rfcomm_send_cmd(struct rfcomm_session *s, struct rfcomm_cmd *cmd)
+{
+	BT_DBG("%p cmd %u", s, cmd->ctrl);
+
+	return rfcomm_send_frame(s, (void *) cmd, sizeof(*cmd));
+}
+
+static int rfcomm_send_sabm(struct rfcomm_session *s, u8 dlci)
+{
+	struct rfcomm_cmd cmd;
+
+	BT_DBG("%p dlci %d", s, dlci);
+
+	cmd.addr = __addr(s->initiator, dlci);
+	cmd.ctrl = __ctrl(RFCOMM_SABM, 1);
+	cmd.len  = __len8(0);
+	cmd.fcs  = __fcs2((u8 *) &cmd);
+
+	return rfcomm_send_cmd(s, &cmd);
+}
+
+static int rfcomm_send_ua(struct rfcomm_session *s, u8 dlci)
+{
+	struct rfcomm_cmd cmd;
+
+	BT_DBG("%p dlci %d", s, dlci);
+
+	cmd.addr = __addr(!s->initiator, dlci);
+	cmd.ctrl = __ctrl(RFCOMM_UA, 1);
+	cmd.len  = __len8(0);
+	cmd.fcs  = __fcs2((u8 *) &cmd);
+
+	return rfcomm_send_cmd(s, &cmd);
+}
+
+static int rfcomm_send_disc(struct rfcomm_session *s, u8 dlci)
+{
+	struct rfcomm_cmd cmd;
+
+	BT_DBG("%p dlci %d", s, dlci);
+
+	cmd.addr = __addr(s->initiator, dlci);
+	cmd.ctrl = __ctrl(RFCOMM_DISC, 1);
+	cmd.len  = __len8(0);
+	cmd.fcs  = __fcs2((u8 *) &cmd);
+
+	return rfcomm_send_cmd(s, &cmd);
+}
+
+static int rfcomm_queue_disc(struct rfcomm_dlc *d)
+{
+	struct rfcomm_cmd *cmd;
+	struct sk_buff *skb;
+
+	BT_DBG("dlc %p dlci %d", d, d->dlci);
+
+	skb = alloc_skb(sizeof(*cmd), GFP_KERNEL);
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (void *) __skb_put(skb, sizeof(*cmd));
+	cmd->addr = d->addr;
+	cmd->ctrl = __ctrl(RFCOMM_DISC, 1);
+	cmd->len  = __len8(0);
+	cmd->fcs  = __fcs2((u8 *) cmd);
+
+	skb_queue_tail(&d->tx_queue, skb);
+	rfcomm_schedule();
+	return 0;
+}
+
+static int rfcomm_send_dm(struct rfcomm_session *s, u8 dlci)
+{
+	struct rfcomm_cmd cmd;
+
+	BT_DBG("%p dlci %d", s, dlci);
+
+	cmd.addr = __addr(!s->initiator, dlci);
+	cmd.ctrl = __ctrl(RFCOMM_DM, 1);
+	cmd.len  = __len8(0);
+	cmd.fcs  = __fcs2((u8 *) &cmd);
+
+	return rfcomm_send_cmd(s, &cmd);
+}
+
+static int rfcomm_send_nsc(struct rfcomm_session *s, int cr, u8 type)
+{
+	struct rfcomm_hdr *hdr;
+	struct rfcomm_mcc *mcc;
+	u8 buf[16], *ptr = buf;
+
+	BT_DBG("%p cr %d type %d", s, cr, type);
+
+	hdr = (void *) ptr; ptr += sizeof(*hdr);
+	hdr->addr = __addr(s->initiator, 0);
+	hdr->ctrl = __ctrl(RFCOMM_UIH, 0);
+	hdr->len  = __len8(sizeof(*mcc) + 1);
+
+	mcc = (void *) ptr; ptr += sizeof(*mcc);
+	mcc->type = __mcc_type(cr, RFCOMM_NSC);
+	mcc->len  = __len8(1);
+
+	/* Type that we didn't like */
+	*ptr = __mcc_type(cr, type); ptr++;
+
+	*ptr = __fcs(buf); ptr++;
+
+	return rfcomm_send_frame(s, buf, ptr - buf);
+}
+
+static int rfcomm_send_pn(struct rfcomm_session *s, int cr, struct rfcomm_dlc *d)
+{
+	struct rfcomm_hdr *hdr;
+	struct rfcomm_mcc *mcc;
+	struct rfcomm_pn  *pn;
+	u8 buf[16], *ptr = buf;
+
+	BT_DBG("%p cr %d dlci %d mtu %d", s, cr, d->dlci, d->mtu);
+
+	hdr = (void *) ptr; ptr += sizeof(*hdr);
+	hdr->addr = __addr(s->initiator, 0);
+	hdr->ctrl = __ctrl(RFCOMM_UIH, 0);
+	hdr->len  = __len8(sizeof(*mcc) + sizeof(*pn));
+
+	mcc = (void *) ptr; ptr += sizeof(*mcc);
+	mcc->type = __mcc_type(cr, RFCOMM_PN);
+	mcc->len  = __len8(sizeof(*pn));
+
+	pn = (void *) ptr; ptr += sizeof(*pn);
+	pn->dlci        = d->dlci;
+	pn->priority    = d->priority;
+	pn->ack_timer   = 0;
+	pn->max_retrans = 0;
+
+	if (s->cfc) {
+		pn->flow_ctrl = cr ? 0xf0 : 0xe0;
+		pn->credits = RFCOMM_DEFAULT_CREDITS;
+	} else {
+		pn->flow_ctrl = 0;
+		pn->credits   = 0;
+	}
+
+	if (cr && channel_mtu >= 0)
+		pn->mtu = cpu_to_le16(channel_mtu);
+	else
+		pn->mtu = cpu_to_le16(d->mtu);
+
+	*ptr = __fcs(buf); ptr++;
+
+	return rfcomm_send_frame(s, buf, ptr - buf);
+}
+
+int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci,
+			u8 bit_rate, u8 data_bits, u8 stop_bits,
+			u8 parity, u8 flow_ctrl_settings,
+			u8 xon_char, u8 xoff_char, u16 param_mask)
+{
+	struct rfcomm_hdr *hdr;
+	struct rfcomm_mcc *mcc;
+	struct rfcomm_rpn *rpn;
+	u8 buf[16], *ptr = buf;
+
+	BT_DBG("%p cr %d dlci %d bit_r 0x%x data_b 0x%x stop_b 0x%x parity 0x%x"
+			" flwc_s 0x%x xon_c 0x%x xoff_c 0x%x p_mask 0x%x",
+		s, cr, dlci, bit_rate, data_bits, stop_bits, parity,
+		flow_ctrl_settings, xon_char, xoff_char, param_mask);
+
+	hdr = (void *) ptr; ptr += sizeof(*hdr);
+	hdr->addr = __addr(s->initiator, 0);
+	hdr->ctrl = __ctrl(RFCOMM_UIH, 0);
+	hdr->len  = __len8(sizeof(*mcc) + sizeof(*rpn));
+
+	mcc = (void *) ptr; ptr += sizeof(*mcc);
+	mcc->type = __mcc_type(cr, RFCOMM_RPN);
+	mcc->len  = __len8(sizeof(*rpn));
+
+	rpn = (void *) ptr; ptr += sizeof(*rpn);
+	rpn->dlci          = __addr(1, dlci);
+	rpn->bit_rate      = bit_rate;
+	rpn->line_settings = __rpn_line_settings(data_bits, stop_bits, parity);
+	rpn->flow_ctrl     = flow_ctrl_settings;
+	rpn->xon_char      = xon_char;
+	rpn->xoff_char     = xoff_char;
+	rpn->param_mask    = cpu_to_le16(param_mask);
+
+	*ptr = __fcs(buf); ptr++;
+
+	return rfcomm_send_frame(s, buf, ptr - buf);
+}
+
+static int rfcomm_send_rls(struct rfcomm_session *s, int cr, u8 dlci, u8 status)
+{
+	struct rfcomm_hdr *hdr;
+	struct rfcomm_mcc *mcc;
+	struct rfcomm_rls *rls;
+	u8 buf[16], *ptr = buf;
+
+	BT_DBG("%p cr %d status 0x%x", s, cr, status);
+
+	hdr = (void *) ptr; ptr += sizeof(*hdr);
+	hdr->addr = __addr(s->initiator, 0);
+	hdr->ctrl = __ctrl(RFCOMM_UIH, 0);
+	hdr->len  = __len8(sizeof(*mcc) + sizeof(*rls));
+
+	mcc = (void *) ptr; ptr += sizeof(*mcc);
+	mcc->type = __mcc_type(cr, RFCOMM_RLS);
+	mcc->len  = __len8(sizeof(*rls));
+
+	rls = (void *) ptr; ptr += sizeof(*rls);
+	rls->dlci   = __addr(1, dlci);
+	rls->status = status;
+
+	*ptr = __fcs(buf); ptr++;
+
+	return rfcomm_send_frame(s, buf, ptr - buf);
+}
+
+static int rfcomm_send_msc(struct rfcomm_session *s, int cr, u8 dlci, u8 v24_sig)
+{
+	struct rfcomm_hdr *hdr;
+	struct rfcomm_mcc *mcc;
+	struct rfcomm_msc *msc;
+	u8 buf[16], *ptr = buf;
+
+	BT_DBG("%p cr %d v24 0x%x", s, cr, v24_sig);
+
+	hdr = (void *) ptr; ptr += sizeof(*hdr);
+	hdr->addr = __addr(s->initiator, 0);
+	hdr->ctrl = __ctrl(RFCOMM_UIH, 0);
+	hdr->len  = __len8(sizeof(*mcc) + sizeof(*msc));
+
+	mcc = (void *) ptr; ptr += sizeof(*mcc);
+	mcc->type = __mcc_type(cr, RFCOMM_MSC);
+	mcc->len  = __len8(sizeof(*msc));
+
+	msc = (void *) ptr; ptr += sizeof(*msc);
+	msc->dlci    = __addr(1, dlci);
+	msc->v24_sig = v24_sig | 0x01;
+
+	*ptr = __fcs(buf); ptr++;
+
+	return rfcomm_send_frame(s, buf, ptr - buf);
+}
+
+static int rfcomm_send_fcoff(struct rfcomm_session *s, int cr)
+{
+	struct rfcomm_hdr *hdr;
+	struct rfcomm_mcc *mcc;
+	u8 buf[16], *ptr = buf;
+
+	BT_DBG("%p cr %d", s, cr);
+
+	hdr = (void *) ptr; ptr += sizeof(*hdr);
+	hdr->addr = __addr(s->initiator, 0);
+	hdr->ctrl = __ctrl(RFCOMM_UIH, 0);
+	hdr->len  = __len8(sizeof(*mcc));
+
+	mcc = (void *) ptr; ptr += sizeof(*mcc);
+	mcc->type = __mcc_type(cr, RFCOMM_FCOFF);
+	mcc->len  = __len8(0);
+
+	*ptr = __fcs(buf); ptr++;
+
+	return rfcomm_send_frame(s, buf, ptr - buf);
+}
+
+static int rfcomm_send_fcon(struct rfcomm_session *s, int cr)
+{
+	struct rfcomm_hdr *hdr;
+	struct rfcomm_mcc *mcc;
+	u8 buf[16], *ptr = buf;
+
+	BT_DBG("%p cr %d", s, cr);
+
+	hdr = (void *) ptr; ptr += sizeof(*hdr);
+	hdr->addr = __addr(s->initiator, 0);
+	hdr->ctrl = __ctrl(RFCOMM_UIH, 0);
+	hdr->len  = __len8(sizeof(*mcc));
+
+	mcc = (void *) ptr; ptr += sizeof(*mcc);
+	mcc->type = __mcc_type(cr, RFCOMM_FCON);
+	mcc->len  = __len8(0);
+
+	*ptr = __fcs(buf); ptr++;
+
+	return rfcomm_send_frame(s, buf, ptr - buf);
+}
+
+static int rfcomm_send_test(struct rfcomm_session *s, int cr, u8 *pattern, int len)
+{
+	struct socket *sock = s->sock;
+	struct kvec iv[3];
+	struct msghdr msg;
+	unsigned char hdr[5], crc[1];
+
+	if (len > 125)
+		return -EINVAL;
+
+	BT_DBG("%p cr %d", s, cr);
+
+	hdr[0] = __addr(s->initiator, 0);
+	hdr[1] = __ctrl(RFCOMM_UIH, 0);
+	hdr[2] = 0x01 | ((len + 2) << 1);
+	hdr[3] = 0x01 | ((cr & 0x01) << 1) | (RFCOMM_TEST << 2);
+	hdr[4] = 0x01 | (len << 1);
+
+	crc[0] = __fcs(hdr);
+
+	iv[0].iov_base = hdr;
+	iv[0].iov_len  = 5;
+	iv[1].iov_base = pattern;
+	iv[1].iov_len  = len;
+	iv[2].iov_base = crc;
+	iv[2].iov_len  = 1;
+
+	memset(&msg, 0, sizeof(msg));
+
+	return kernel_sendmsg(sock, &msg, iv, 3, 6 + len);
+}
+
+static int rfcomm_send_credits(struct rfcomm_session *s, u8 addr, u8 credits)
+{
+	struct rfcomm_hdr *hdr;
+	u8 buf[16], *ptr = buf;
+
+	BT_DBG("%p addr %d credits %d", s, addr, credits);
+
+	hdr = (void *) ptr; ptr += sizeof(*hdr);
+	hdr->addr = addr;
+	hdr->ctrl = __ctrl(RFCOMM_UIH, 1);
+	hdr->len  = __len8(0);
+
+	*ptr = credits; ptr++;
+
+	*ptr = __fcs(buf); ptr++;
+
+	return rfcomm_send_frame(s, buf, ptr - buf);
+}
+
+static void rfcomm_make_uih(struct sk_buff *skb, u8 addr)
+{
+	struct rfcomm_hdr *hdr;
+	int len = skb->len;
+	u8 *crc;
+
+	if (len > 127) {
+		hdr = (void *) skb_push(skb, 4);
+		put_unaligned(cpu_to_le16(__len16(len)), (__le16 *) &hdr->len);
+	} else {
+		hdr = (void *) skb_push(skb, 3);
+		hdr->len = __len8(len);
+	}
+	hdr->addr = addr;
+	hdr->ctrl = __ctrl(RFCOMM_UIH, 0);
+
+	crc = skb_put(skb, 1);
+	*crc = __fcs((void *) hdr);
+}
+
+/* ---- RFCOMM frame reception ---- */
+static int rfcomm_recv_ua(struct rfcomm_session *s, u8 dlci)
+{
+	BT_DBG("session %p state %ld dlci %d", s, s->state, dlci);
+
+	if (dlci) {
+		/* Data channel */
+		struct rfcomm_dlc *d = rfcomm_dlc_get(s, dlci);
+		if (!d) {
+			rfcomm_send_dm(s, dlci);
+			return 0;
+		}
+
+		switch (d->state) {
+		case BT_CONNECT:
+			rfcomm_dlc_clear_timer(d);
+
+			rfcomm_dlc_lock(d);
+			d->state = BT_CONNECTED;
+			d->state_change(d, 0);
+			rfcomm_dlc_unlock(d);
+
+			rfcomm_send_msc(s, 1, dlci, d->v24_sig);
+			break;
+
+		case BT_DISCONN:
+			d->state = BT_CLOSED;
+			__rfcomm_dlc_close(d, 0);
+
+			if (list_empty(&s->dlcs)) {
+				s->state = BT_DISCONN;
+				rfcomm_send_disc(s, 0);
+				rfcomm_session_clear_timer(s);
+			}
+
+			break;
+		}
+	} else {
+		/* Control channel */
+		switch (s->state) {
+		case BT_CONNECT:
+			s->state = BT_CONNECTED;
+			rfcomm_process_connect(s);
+			break;
+
+		case BT_DISCONN:
+			/* rfcomm_session_put is called later so don't do
+			 * anything here otherwise we will mess up the session
+			 * reference counter:
+			 *
+			 * (a) when we are the initiator dlc_unlink will drive
+			 * the reference counter to 0 (there is no initial put
+			 * after session_add)
+			 *
+			 * (b) when we are not the initiator rfcomm_rx_process
+			 * will explicitly call put to balance the initial hold
+			 * done after session add.
+			 */
+			break;
+		}
+	}
+	return 0;
+}
+
+static int rfcomm_recv_dm(struct rfcomm_session *s, u8 dlci)
+{
+	int err = 0;
+
+	BT_DBG("session %p state %ld dlci %d", s, s->state, dlci);
+
+	if (dlci) {
+		/* Data DLC */
+		struct rfcomm_dlc *d = rfcomm_dlc_get(s, dlci);
+		if (d) {
+			if (d->state == BT_CONNECT || d->state == BT_CONFIG)
+				err = ECONNREFUSED;
+			else
+				err = ECONNRESET;
+
+			d->state = BT_CLOSED;
+			__rfcomm_dlc_close(d, err);
+		}
+	} else {
+		if (s->state == BT_CONNECT)
+			err = ECONNREFUSED;
+		else
+			err = ECONNRESET;
+
+		s->state = BT_CLOSED;
+		rfcomm_session_close(s, err);
+	}
+	return 0;
+}
+
+static int rfcomm_recv_disc(struct rfcomm_session *s, u8 dlci)
+{
+	int err = 0;
+
+	BT_DBG("session %p state %ld dlci %d", s, s->state, dlci);
+
+	if (dlci) {
+		struct rfcomm_dlc *d = rfcomm_dlc_get(s, dlci);
+		if (d) {
+			rfcomm_send_ua(s, dlci);
+
+			if (d->state == BT_CONNECT || d->state == BT_CONFIG)
+				err = ECONNREFUSED;
+			else
+				err = ECONNRESET;
+
+			d->state = BT_CLOSED;
+			__rfcomm_dlc_close(d, err);
+		} else
+			rfcomm_send_dm(s, dlci);
+
+	} else {
+		rfcomm_send_ua(s, 0);
+
+		if (s->state == BT_CONNECT)
+			err = ECONNREFUSED;
+		else
+			err = ECONNRESET;
+
+		s->state = BT_CLOSED;
+		rfcomm_session_close(s, err);
+	}
+
+	return 0;
+}
+
+void rfcomm_dlc_accept(struct rfcomm_dlc *d)
+{
+	struct sock *sk = d->session->sock->sk;
+	struct l2cap_conn *conn = l2cap_pi(sk)->chan->conn;
+
+	BT_DBG("dlc %p", d);
+
+	rfcomm_send_ua(d->session, d->dlci);
+
+	rfcomm_dlc_clear_timer(d);
+
+	rfcomm_dlc_lock(d);
+	d->state = BT_CONNECTED;
+	d->state_change(d, 0);
+	rfcomm_dlc_unlock(d);
+
+	if (d->role_switch)
+		hci_conn_switch_role(conn->hcon, 0x00);
+
+	rfcomm_send_msc(d->session, 1, d->dlci, d->v24_sig);
+}
+
+static void rfcomm_check_accept(struct rfcomm_dlc *d)
+{
+	if (rfcomm_check_security(d)) {
+		if (d->defer_setup) {
+			set_bit(RFCOMM_DEFER_SETUP, &d->flags);
+			rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
+
+			rfcomm_dlc_lock(d);
+			d->state = BT_CONNECT2;
+			d->state_change(d, 0);
+			rfcomm_dlc_unlock(d);
+		} else
+			rfcomm_dlc_accept(d);
+	} else {
+		set_bit(RFCOMM_AUTH_PENDING, &d->flags);
+		rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
+	}
+}
+
+static int rfcomm_recv_sabm(struct rfcomm_session *s, u8 dlci)
+{
+	struct rfcomm_dlc *d;
+	u8 channel;
+
+	BT_DBG("session %p state %ld dlci %d", s, s->state, dlci);
+
+	if (!dlci) {
+		rfcomm_send_ua(s, 0);
+
+		if (s->state == BT_OPEN) {
+			s->state = BT_CONNECTED;
+			rfcomm_process_connect(s);
+		}
+		return 0;
+	}
+
+	/* Check if DLC exists */
+	d = rfcomm_dlc_get(s, dlci);
+	if (d) {
+		if (d->state == BT_OPEN) {
+			/* DLC was previously opened by PN request */
+			rfcomm_check_accept(d);
+		}
+		return 0;
+	}
+
+	/* Notify socket layer about incoming connection */
+	channel = __srv_channel(dlci);
+	if (rfcomm_connect_ind(s, channel, &d)) {
+		d->dlci = dlci;
+		d->addr = __addr(s->initiator, dlci);
+		rfcomm_dlc_link(s, d);
+
+		rfcomm_check_accept(d);
+	} else {
+		rfcomm_send_dm(s, dlci);
+	}
+
+	return 0;
+}
+
+static int rfcomm_apply_pn(struct rfcomm_dlc *d, int cr, struct rfcomm_pn *pn)
+{
+	struct rfcomm_session *s = d->session;
+
+	BT_DBG("dlc %p state %ld dlci %d mtu %d fc 0x%x credits %d",
+			d, d->state, d->dlci, pn->mtu, pn->flow_ctrl, pn->credits);
+
+	if ((pn->flow_ctrl == 0xf0 && s->cfc != RFCOMM_CFC_DISABLED) ||
+						pn->flow_ctrl == 0xe0) {
+		d->cfc = RFCOMM_CFC_ENABLED;
+		d->tx_credits = pn->credits;
+	} else {
+		d->cfc = RFCOMM_CFC_DISABLED;
+		set_bit(RFCOMM_TX_THROTTLED, &d->flags);
+	}
+
+	if (s->cfc == RFCOMM_CFC_UNKNOWN)
+		s->cfc = d->cfc;
+
+	d->priority = pn->priority;
+
+	d->mtu = __le16_to_cpu(pn->mtu);
+
+	if (cr && d->mtu > s->mtu)
+		d->mtu = s->mtu;
+
+	return 0;
+}
+
+static int rfcomm_recv_pn(struct rfcomm_session *s, int cr, struct sk_buff *skb)
+{
+	struct rfcomm_pn *pn = (void *) skb->data;
+	struct rfcomm_dlc *d;
+	u8 dlci = pn->dlci;
+
+	BT_DBG("session %p state %ld dlci %d", s, s->state, dlci);
+
+	if (!dlci)
+		return 0;
+
+	d = rfcomm_dlc_get(s, dlci);
+	if (d) {
+		if (cr) {
+			/* PN request */
+			rfcomm_apply_pn(d, cr, pn);
+			rfcomm_send_pn(s, 0, d);
+		} else {
+			/* PN response */
+			switch (d->state) {
+			case BT_CONFIG:
+				rfcomm_apply_pn(d, cr, pn);
+
+				d->state = BT_CONNECT;
+				rfcomm_send_sabm(s, d->dlci);
+				break;
+			}
+		}
+	} else {
+		u8 channel = __srv_channel(dlci);
+
+		if (!cr)
+			return 0;
+
+		/* PN request for non existing DLC.
+		 * Assume incoming connection. */
+		if (rfcomm_connect_ind(s, channel, &d)) {
+			d->dlci = dlci;
+			d->addr = __addr(s->initiator, dlci);
+			rfcomm_dlc_link(s, d);
+
+			rfcomm_apply_pn(d, cr, pn);
+
+			d->state = BT_OPEN;
+			rfcomm_send_pn(s, 0, d);
+		} else {
+			rfcomm_send_dm(s, dlci);
+		}
+	}
+	return 0;
+}
+
+static int rfcomm_recv_rpn(struct rfcomm_session *s, int cr, int len, struct sk_buff *skb)
+{
+	struct rfcomm_rpn *rpn = (void *) skb->data;
+	u8 dlci = __get_dlci(rpn->dlci);
+
+	u8 bit_rate  = 0;
+	u8 data_bits = 0;
+	u8 stop_bits = 0;
+	u8 parity    = 0;
+	u8 flow_ctrl = 0;
+	u8 xon_char  = 0;
+	u8 xoff_char = 0;
+	u16 rpn_mask = RFCOMM_RPN_PM_ALL;
+
+	BT_DBG("dlci %d cr %d len 0x%x bitr 0x%x line 0x%x flow 0x%x xonc 0x%x xoffc 0x%x pm 0x%x",
+		dlci, cr, len, rpn->bit_rate, rpn->line_settings, rpn->flow_ctrl,
+		rpn->xon_char, rpn->xoff_char, rpn->param_mask);
+
+	if (!cr)
+		return 0;
+
+	if (len == 1) {
+		/* This is a request, return default (according to ETSI TS 07.10) settings */
+		bit_rate  = RFCOMM_RPN_BR_9600;
+		data_bits = RFCOMM_RPN_DATA_8;
+		stop_bits = RFCOMM_RPN_STOP_1;
+		parity    = RFCOMM_RPN_PARITY_NONE;
+		flow_ctrl = RFCOMM_RPN_FLOW_NONE;
+		xon_char  = RFCOMM_RPN_XON_CHAR;
+		xoff_char = RFCOMM_RPN_XOFF_CHAR;
+		goto rpn_out;
+	}
+
+	/* Check for sane values, ignore/accept bit_rate, 8 bits, 1 stop bit,
+	 * no parity, no flow control lines, normal XON/XOFF chars */
+
+	if (rpn->param_mask & cpu_to_le16(RFCOMM_RPN_PM_BITRATE)) {
+		bit_rate = rpn->bit_rate;
+		if (bit_rate > RFCOMM_RPN_BR_230400) {
+			BT_DBG("RPN bit rate mismatch 0x%x", bit_rate);
+			bit_rate = RFCOMM_RPN_BR_9600;
+			rpn_mask ^= RFCOMM_RPN_PM_BITRATE;
+		}
+	}
+
+	if (rpn->param_mask & cpu_to_le16(RFCOMM_RPN_PM_DATA)) {
+		data_bits = __get_rpn_data_bits(rpn->line_settings);
+		if (data_bits != RFCOMM_RPN_DATA_8) {
+			BT_DBG("RPN data bits mismatch 0x%x", data_bits);
+			data_bits = RFCOMM_RPN_DATA_8;
+			rpn_mask ^= RFCOMM_RPN_PM_DATA;
+		}
+	}
+
+	if (rpn->param_mask & cpu_to_le16(RFCOMM_RPN_PM_STOP)) {
+		stop_bits = __get_rpn_stop_bits(rpn->line_settings);
+		if (stop_bits != RFCOMM_RPN_STOP_1) {
+			BT_DBG("RPN stop bits mismatch 0x%x", stop_bits);
+			stop_bits = RFCOMM_RPN_STOP_1;
+			rpn_mask ^= RFCOMM_RPN_PM_STOP;
+		}
+	}
+
+	if (rpn->param_mask & cpu_to_le16(RFCOMM_RPN_PM_PARITY)) {
+		parity = __get_rpn_parity(rpn->line_settings);
+		if (parity != RFCOMM_RPN_PARITY_NONE) {
+			BT_DBG("RPN parity mismatch 0x%x", parity);
+			parity = RFCOMM_RPN_PARITY_NONE;
+			rpn_mask ^= RFCOMM_RPN_PM_PARITY;
+		}
+	}
+
+	if (rpn->param_mask & cpu_to_le16(RFCOMM_RPN_PM_FLOW)) {
+		flow_ctrl = rpn->flow_ctrl;
+		if (flow_ctrl != RFCOMM_RPN_FLOW_NONE) {
+			BT_DBG("RPN flow ctrl mismatch 0x%x", flow_ctrl);
+			flow_ctrl = RFCOMM_RPN_FLOW_NONE;
+			rpn_mask ^= RFCOMM_RPN_PM_FLOW;
+		}
+	}
+
+	if (rpn->param_mask & cpu_to_le16(RFCOMM_RPN_PM_XON)) {
+		xon_char = rpn->xon_char;
+		if (xon_char != RFCOMM_RPN_XON_CHAR) {
+			BT_DBG("RPN XON char mismatch 0x%x", xon_char);
+			xon_char = RFCOMM_RPN_XON_CHAR;
+			rpn_mask ^= RFCOMM_RPN_PM_XON;
+		}
+	}
+
+	if (rpn->param_mask & cpu_to_le16(RFCOMM_RPN_PM_XOFF)) {
+		xoff_char = rpn->xoff_char;
+		if (xoff_char != RFCOMM_RPN_XOFF_CHAR) {
+			BT_DBG("RPN XOFF char mismatch 0x%x", xoff_char);
+			xoff_char = RFCOMM_RPN_XOFF_CHAR;
+			rpn_mask ^= RFCOMM_RPN_PM_XOFF;
+		}
+	}
+
+rpn_out:
+	rfcomm_send_rpn(s, 0, dlci, bit_rate, data_bits, stop_bits,
+			parity, flow_ctrl, xon_char, xoff_char, rpn_mask);
+
+	return 0;
+}
+
+static int rfcomm_recv_rls(struct rfcomm_session *s, int cr, struct sk_buff *skb)
+{
+	struct rfcomm_rls *rls = (void *) skb->data;
+	u8 dlci = __get_dlci(rls->dlci);
+
+	BT_DBG("dlci %d cr %d status 0x%x", dlci, cr, rls->status);
+
+	if (!cr)
+		return 0;
+
+	/* We should probably do something with this information here. But
+	 * for now it's sufficient just to reply -- Bluetooth 1.1 says it's
+	 * mandatory to recognise and respond to RLS */
+
+	rfcomm_send_rls(s, 0, dlci, rls->status);
+
+	return 0;
+}
+
+static int rfcomm_recv_msc(struct rfcomm_session *s, int cr, struct sk_buff *skb)
+{
+	struct rfcomm_msc *msc = (void *) skb->data;
+	struct rfcomm_dlc *d;
+	u8 dlci = __get_dlci(msc->dlci);
+
+	BT_DBG("dlci %d cr %d v24 0x%x", dlci, cr, msc->v24_sig);
+
+	d = rfcomm_dlc_get(s, dlci);
+	if (!d)
+		return 0;
+
+	if (cr) {
+		if (msc->v24_sig & RFCOMM_V24_FC && !d->cfc)
+			set_bit(RFCOMM_TX_THROTTLED, &d->flags);
+		else
+			clear_bit(RFCOMM_TX_THROTTLED, &d->flags);
+
+		rfcomm_dlc_lock(d);
+
+		d->remote_v24_sig = msc->v24_sig;
+
+		if (d->modem_status)
+			d->modem_status(d, msc->v24_sig);
+
+		rfcomm_dlc_unlock(d);
+
+		rfcomm_send_msc(s, 0, dlci, msc->v24_sig);
+
+		d->mscex |= RFCOMM_MSCEX_RX;
+	} else
+		d->mscex |= RFCOMM_MSCEX_TX;
+
+	return 0;
+}
+
+static int rfcomm_recv_mcc(struct rfcomm_session *s, struct sk_buff *skb)
+{
+	struct rfcomm_mcc *mcc = (void *) skb->data;
+	u8 type, cr, len;
+
+	cr   = __test_cr(mcc->type);
+	type = __get_mcc_type(mcc->type);
+	len  = __get_mcc_len(mcc->len);
+
+	BT_DBG("%p type 0x%x cr %d", s, type, cr);
+
+	skb_pull(skb, 2);
+
+	switch (type) {
+	case RFCOMM_PN:
+		rfcomm_recv_pn(s, cr, skb);
+		break;
+
+	case RFCOMM_RPN:
+		rfcomm_recv_rpn(s, cr, len, skb);
+		break;
+
+	case RFCOMM_RLS:
+		rfcomm_recv_rls(s, cr, skb);
+		break;
+
+	case RFCOMM_MSC:
+		rfcomm_recv_msc(s, cr, skb);
+		break;
+
+	case RFCOMM_FCOFF:
+		if (cr) {
+			set_bit(RFCOMM_TX_THROTTLED, &s->flags);
+			rfcomm_send_fcoff(s, 0);
+		}
+		break;
+
+	case RFCOMM_FCON:
+		if (cr) {
+			clear_bit(RFCOMM_TX_THROTTLED, &s->flags);
+			rfcomm_send_fcon(s, 0);
+		}
+		break;
+
+	case RFCOMM_TEST:
+		if (cr)
+			rfcomm_send_test(s, 0, skb->data, skb->len);
+		break;
+
+	case RFCOMM_NSC:
+		break;
+
+	default:
+		BT_ERR("Unknown control type 0x%02x", type);
+		rfcomm_send_nsc(s, cr, type);
+		break;
+	}
+	return 0;
+}
+
+static int rfcomm_recv_data(struct rfcomm_session *s, u8 dlci, int pf, struct sk_buff *skb)
+{
+	struct rfcomm_dlc *d;
+
+	BT_DBG("session %p state %ld dlci %d pf %d", s, s->state, dlci, pf);
+
+	d = rfcomm_dlc_get(s, dlci);
+	if (!d) {
+		rfcomm_send_dm(s, dlci);
+		goto drop;
+	}
+
+	if (pf && d->cfc) {
+		u8 credits = *(u8 *) skb->data; skb_pull(skb, 1);
+
+		d->tx_credits += credits;
+		if (d->tx_credits)
+			clear_bit(RFCOMM_TX_THROTTLED, &d->flags);
+	}
+
+	if (skb->len && d->state == BT_CONNECTED) {
+		rfcomm_dlc_lock(d);
+		d->rx_credits--;
+		d->data_ready(d, skb);
+		rfcomm_dlc_unlock(d);
+		return 0;
+	}
+
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
+static int rfcomm_recv_frame(struct rfcomm_session *s, struct sk_buff *skb)
+{
+	struct rfcomm_hdr *hdr = (void *) skb->data;
+	u8 type, dlci, fcs;
+
+	dlci = __get_dlci(hdr->addr);
+	type = __get_type(hdr->ctrl);
+
+	/* Trim FCS */
+	skb->len--; skb->tail--;
+	fcs = *(u8 *)skb_tail_pointer(skb);
+
+	if (__check_fcs(skb->data, type, fcs)) {
+		BT_ERR("bad checksum in packet");
+		kfree_skb(skb);
+		return -EILSEQ;
+	}
+
+	if (__test_ea(hdr->len))
+		skb_pull(skb, 3);
+	else
+		skb_pull(skb, 4);
+
+	switch (type) {
+	case RFCOMM_SABM:
+		if (__test_pf(hdr->ctrl))
+			rfcomm_recv_sabm(s, dlci);
+		break;
+
+	case RFCOMM_DISC:
+		if (__test_pf(hdr->ctrl))
+			rfcomm_recv_disc(s, dlci);
+		break;
+
+	case RFCOMM_UA:
+		if (__test_pf(hdr->ctrl))
+			rfcomm_recv_ua(s, dlci);
+		break;
+
+	case RFCOMM_DM:
+		rfcomm_recv_dm(s, dlci);
+		break;
+
+	case RFCOMM_UIH:
+		if (dlci)
+			return rfcomm_recv_data(s, dlci, __test_pf(hdr->ctrl), skb);
+
+		rfcomm_recv_mcc(s, skb);
+		break;
+
+	default:
+		BT_ERR("Unknown packet type 0x%02x", type);
+		break;
+	}
+	kfree_skb(skb);
+	return 0;
+}
+
+/* ---- Connection and data processing ---- */
+
+static void rfcomm_process_connect(struct rfcomm_session *s)
+{
+	struct rfcomm_dlc *d;
+	struct list_head *p, *n;
+
+	BT_DBG("session %p state %ld", s, s->state);
+
+	list_for_each_safe(p, n, &s->dlcs) {
+		d = list_entry(p, struct rfcomm_dlc, list);
+		if (d->state == BT_CONFIG) {
+			d->mtu = s->mtu;
+			if (rfcomm_check_security(d)) {
+				rfcomm_send_pn(s, 1, d);
+			} else {
+				set_bit(RFCOMM_AUTH_PENDING, &d->flags);
+				rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
+			}
+		}
+	}
+}
+
+/* Send data queued for the DLC.
+ * Return number of frames left in the queue.
+ */
+static inline int rfcomm_process_tx(struct rfcomm_dlc *d)
+{
+	struct sk_buff *skb;
+	int err;
+
+	BT_DBG("dlc %p state %ld cfc %d rx_credits %d tx_credits %d",
+			d, d->state, d->cfc, d->rx_credits, d->tx_credits);
+
+	/* Send pending MSC */
+	if (test_and_clear_bit(RFCOMM_MSC_PENDING, &d->flags))
+		rfcomm_send_msc(d->session, 1, d->dlci, d->v24_sig);
+
+	if (d->cfc) {
+		/* CFC enabled.
+		 * Give them some credits */
+		if (!test_bit(RFCOMM_RX_THROTTLED, &d->flags) &&
+				d->rx_credits <= (d->cfc >> 2)) {
+			rfcomm_send_credits(d->session, d->addr, d->cfc - d->rx_credits);
+			d->rx_credits = d->cfc;
+		}
+	} else {
+		/* CFC disabled.
+		 * Give ourselves some credits */
+		d->tx_credits = 5;
+	}
+
+	if (test_bit(RFCOMM_TX_THROTTLED, &d->flags))
+		return skb_queue_len(&d->tx_queue);
+
+	while (d->tx_credits && (skb = skb_dequeue(&d->tx_queue))) {
+		err = rfcomm_send_frame(d->session, skb->data, skb->len);
+		if (err < 0) {
+			skb_queue_head(&d->tx_queue, skb);
+			break;
+		}
+		kfree_skb(skb);
+		d->tx_credits--;
+	}
+
+	if (d->cfc && !d->tx_credits) {
+		/* We're out of TX credits.
+		 * Set TX_THROTTLED flag to avoid unnesary wakeups by dlc_send. */
+		set_bit(RFCOMM_TX_THROTTLED, &d->flags);
+	}
+
+	return skb_queue_len(&d->tx_queue);
+}
+
+static inline void rfcomm_process_dlcs(struct rfcomm_session *s)
+{
+	struct rfcomm_dlc *d;
+	struct list_head *p, *n;
+
+	BT_DBG("session %p state %ld", s, s->state);
+
+	list_for_each_safe(p, n, &s->dlcs) {
+		d = list_entry(p, struct rfcomm_dlc, list);
+
+		if (test_bit(RFCOMM_TIMED_OUT, &d->flags)) {
+			__rfcomm_dlc_close(d, ETIMEDOUT);
+			continue;
+		}
+
+		if (test_bit(RFCOMM_ENC_DROP, &d->flags)) {
+			__rfcomm_dlc_close(d, ECONNREFUSED);
+			continue;
+		}
+
+		if (test_and_clear_bit(RFCOMM_AUTH_ACCEPT, &d->flags)) {
+			rfcomm_dlc_clear_timer(d);
+			if (d->out) {
+				rfcomm_send_pn(s, 1, d);
+				rfcomm_dlc_set_timer(d, RFCOMM_CONN_TIMEOUT);
+			} else {
+				if (d->defer_setup) {
+					set_bit(RFCOMM_DEFER_SETUP, &d->flags);
+					rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
+
+					rfcomm_dlc_lock(d);
+					d->state = BT_CONNECT2;
+					d->state_change(d, 0);
+					rfcomm_dlc_unlock(d);
+				} else
+					rfcomm_dlc_accept(d);
+			}
+			continue;
+		} else if (test_and_clear_bit(RFCOMM_AUTH_REJECT, &d->flags)) {
+			rfcomm_dlc_clear_timer(d);
+			if (!d->out)
+				rfcomm_send_dm(s, d->dlci);
+			else
+				d->state = BT_CLOSED;
+			__rfcomm_dlc_close(d, ECONNREFUSED);
+			continue;
+		}
+
+		if (test_bit(RFCOMM_SEC_PENDING, &d->flags))
+			continue;
+
+		if (test_bit(RFCOMM_TX_THROTTLED, &s->flags))
+			continue;
+
+		if ((d->state == BT_CONNECTED || d->state == BT_DISCONN) &&
+						d->mscex == RFCOMM_MSCEX_OK)
+			rfcomm_process_tx(d);
+	}
+}
+
+static inline void rfcomm_process_rx(struct rfcomm_session *s)
+{
+	struct socket *sock = s->sock;
+	struct sock *sk = sock->sk;
+	struct sk_buff *skb;
+
+	BT_DBG("session %p state %ld qlen %d", s, s->state, skb_queue_len(&sk->sk_receive_queue));
+
+	/* Get data directly from socket receive queue without copying it. */
+	while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
+		skb_orphan(skb);
+		if (!skb_linearize(skb))
+			rfcomm_recv_frame(s, skb);
+		else
+			kfree_skb(skb);
+	}
+
+	if (sk->sk_state == BT_CLOSED) {
+		if (!s->initiator)
+			rfcomm_session_put(s);
+
+		rfcomm_session_close(s, sk->sk_err);
+	}
+}
+
+static inline void rfcomm_accept_connection(struct rfcomm_session *s)
+{
+	struct socket *sock = s->sock, *nsock;
+	int err;
+
+	/* Fast check for a new connection.
+	 * Avoids unnesesary socket allocations. */
+	if (list_empty(&bt_sk(sock->sk)->accept_q))
+		return;
+
+	BT_DBG("session %p", s);
+
+	err = kernel_accept(sock, &nsock, O_NONBLOCK);
+	if (err < 0)
+		return;
+
+	/* Set our callbacks */
+	nsock->sk->sk_data_ready   = rfcomm_l2data_ready;
+	nsock->sk->sk_state_change = rfcomm_l2state_change;
+
+	s = rfcomm_session_add(nsock, BT_OPEN);
+	if (s) {
+		rfcomm_session_hold(s);
+
+		/* We should adjust MTU on incoming sessions.
+		 * L2CAP MTU minus UIH header and FCS. */
+		s->mtu = min(l2cap_pi(nsock->sk)->chan->omtu,
+				l2cap_pi(nsock->sk)->chan->imtu) - 5;
+
+		rfcomm_schedule();
+	} else
+		sock_release(nsock);
+}
+
+static inline void rfcomm_check_connection(struct rfcomm_session *s)
+{
+	struct sock *sk = s->sock->sk;
+
+	BT_DBG("%p state %ld", s, s->state);
+
+	switch (sk->sk_state) {
+	case BT_CONNECTED:
+		s->state = BT_CONNECT;
+
+		/* We can adjust MTU on outgoing sessions.
+		 * L2CAP MTU minus UIH header and FCS. */
+		s->mtu = min(l2cap_pi(sk)->chan->omtu, l2cap_pi(sk)->chan->imtu) - 5;
+
+		rfcomm_send_sabm(s, 0);
+		break;
+
+	case BT_CLOSED:
+		s->state = BT_CLOSED;
+		rfcomm_session_close(s, sk->sk_err);
+		break;
+	}
+}
+
+static inline void rfcomm_process_sessions(void)
+{
+	struct list_head *p, *n;
+
+	rfcomm_lock();
+
+	list_for_each_safe(p, n, &session_list) {
+		struct rfcomm_session *s;
+		s = list_entry(p, struct rfcomm_session, list);
+
+		if (test_and_clear_bit(RFCOMM_TIMED_OUT, &s->flags)) {
+			s->state = BT_DISCONN;
+			rfcomm_send_disc(s, 0);
+			rfcomm_session_put(s);
+			continue;
+		}
+
+		if (s->state == BT_LISTEN) {
+			rfcomm_accept_connection(s);
+			continue;
+		}
+
+		rfcomm_session_hold(s);
+
+		switch (s->state) {
+		case BT_BOUND:
+			rfcomm_check_connection(s);
+			break;
+
+		default:
+			rfcomm_process_rx(s);
+			break;
+		}
+
+		rfcomm_process_dlcs(s);
+
+		rfcomm_session_put(s);
+	}
+
+	rfcomm_unlock();
+}
+
+static int rfcomm_add_listener(bdaddr_t *ba)
+{
+	struct sockaddr_l2 addr;
+	struct socket *sock;
+	struct sock *sk;
+	struct rfcomm_session *s;
+	int    err = 0;
+
+	/* Create socket */
+	err = rfcomm_l2sock_create(&sock);
+	if (err < 0) {
+		BT_ERR("Create socket failed %d", err);
+		return err;
+	}
+
+	/* Bind socket */
+	bacpy(&addr.l2_bdaddr, ba);
+	addr.l2_family = AF_BLUETOOTH;
+	addr.l2_psm    = cpu_to_le16(RFCOMM_PSM);
+	addr.l2_cid    = 0;
+	err = kernel_bind(sock, (struct sockaddr *) &addr, sizeof(addr));
+	if (err < 0) {
+		BT_ERR("Bind failed %d", err);
+		goto failed;
+	}
+
+	/* Set L2CAP options */
+	sk = sock->sk;
+	lock_sock(sk);
+	l2cap_pi(sk)->chan->imtu = l2cap_mtu;
+	release_sock(sk);
+
+	/* Start listening on the socket */
+	err = kernel_listen(sock, 10);
+	if (err) {
+		BT_ERR("Listen failed %d", err);
+		goto failed;
+	}
+
+	/* Add listening session */
+	s = rfcomm_session_add(sock, BT_LISTEN);
+	if (!s)
+		goto failed;
+
+	rfcomm_session_hold(s);
+	return 0;
+failed:
+	sock_release(sock);
+	return err;
+}
+
+static void rfcomm_kill_listener(void)
+{
+	struct rfcomm_session *s;
+	struct list_head *p, *n;
+
+	BT_DBG("");
+
+	list_for_each_safe(p, n, &session_list) {
+		s = list_entry(p, struct rfcomm_session, list);
+		rfcomm_session_del(s);
+	}
+}
+
+static int rfcomm_run(void *unused)
+{
+	BT_DBG("");
+
+	set_user_nice(current, -10);
+
+	rfcomm_add_listener(BDADDR_ANY);
+
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (kthread_should_stop())
+			break;
+
+		/* Process stuff */
+		rfcomm_process_sessions();
+
+		schedule();
+	}
+	__set_current_state(TASK_RUNNING);
+
+	rfcomm_kill_listener();
+
+	return 0;
+}
+
+static void rfcomm_security_cfm(struct hci_conn *conn, u8 status, u8 encrypt)
+{
+	struct rfcomm_session *s;
+	struct rfcomm_dlc *d;
+	struct list_head *p, *n;
+
+	BT_DBG("conn %p status 0x%02x encrypt 0x%02x", conn, status, encrypt);
+
+	s = rfcomm_session_get(&conn->hdev->bdaddr, &conn->dst);
+	if (!s)
+		return;
+
+	rfcomm_session_hold(s);
+
+	list_for_each_safe(p, n, &s->dlcs) {
+		d = list_entry(p, struct rfcomm_dlc, list);
+
+		if (test_and_clear_bit(RFCOMM_SEC_PENDING, &d->flags)) {
+			rfcomm_dlc_clear_timer(d);
+			if (status || encrypt == 0x00) {
+				set_bit(RFCOMM_ENC_DROP, &d->flags);
+				continue;
+			}
+		}
+
+		if (d->state == BT_CONNECTED && !status && encrypt == 0x00) {
+			if (d->sec_level == BT_SECURITY_MEDIUM) {
+				set_bit(RFCOMM_SEC_PENDING, &d->flags);
+				rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
+				continue;
+			} else if (d->sec_level == BT_SECURITY_HIGH) {
+				set_bit(RFCOMM_ENC_DROP, &d->flags);
+				continue;
+			}
+		}
+
+		if (!test_and_clear_bit(RFCOMM_AUTH_PENDING, &d->flags))
+			continue;
+
+		if (!status && hci_conn_check_secure(conn, d->sec_level))
+			set_bit(RFCOMM_AUTH_ACCEPT, &d->flags);
+		else
+			set_bit(RFCOMM_AUTH_REJECT, &d->flags);
+	}
+
+	rfcomm_session_put(s);
+
+	rfcomm_schedule();
+}
+
+static struct hci_cb rfcomm_cb = {
+	.name		= "RFCOMM",
+	.security_cfm	= rfcomm_security_cfm
+};
+
+static int rfcomm_dlc_debugfs_show(struct seq_file *f, void *x)
+{
+	struct rfcomm_session *s;
+
+	rfcomm_lock();
+
+	list_for_each_entry(s, &session_list, list) {
+		struct rfcomm_dlc *d;
+		list_for_each_entry(d, &s->dlcs, list) {
+			struct sock *sk = s->sock->sk;
+
+			seq_printf(f, "%s %s %ld %d %d %d %d\n",
+						batostr(&bt_sk(sk)->src),
+						batostr(&bt_sk(sk)->dst),
+						d->state, d->dlci, d->mtu,
+						d->rx_credits, d->tx_credits);
+		}
+	}
+
+	rfcomm_unlock();
+
+	return 0;
+}
+
+static int rfcomm_dlc_debugfs_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, rfcomm_dlc_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations rfcomm_dlc_debugfs_fops = {
+	.open		= rfcomm_dlc_debugfs_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static struct dentry *rfcomm_dlc_debugfs;
+
+/* ---- Initialization ---- */
+static int __init rfcomm_init(void)
+{
+	int err;
+
+	hci_register_cb(&rfcomm_cb);
+
+	rfcomm_thread = kthread_run(rfcomm_run, NULL, "krfcommd");
+	if (IS_ERR(rfcomm_thread)) {
+		err = PTR_ERR(rfcomm_thread);
+		goto unregister;
+	}
+
+	if (bt_debugfs) {
+		rfcomm_dlc_debugfs = debugfs_create_file("rfcomm_dlc", 0444,
+				bt_debugfs, NULL, &rfcomm_dlc_debugfs_fops);
+		if (!rfcomm_dlc_debugfs)
+			BT_ERR("Failed to create RFCOMM debug file");
+	}
+
+	err = rfcomm_init_ttys();
+	if (err < 0)
+		goto stop;
+
+	err = rfcomm_init_sockets();
+	if (err < 0)
+		goto cleanup;
+
+	BT_INFO("RFCOMM ver %s", VERSION);
+
+	return 0;
+
+cleanup:
+	rfcomm_cleanup_ttys();
+
+stop:
+	kthread_stop(rfcomm_thread);
+
+unregister:
+	hci_unregister_cb(&rfcomm_cb);
+
+	return err;
+}
+
+static void __exit rfcomm_exit(void)
+{
+	debugfs_remove(rfcomm_dlc_debugfs);
+
+	hci_unregister_cb(&rfcomm_cb);
+
+	kthread_stop(rfcomm_thread);
+
+	rfcomm_cleanup_ttys();
+
+	rfcomm_cleanup_sockets();
+}
+
+module_init(rfcomm_init);
+module_exit(rfcomm_exit);
+
+module_param(disable_cfc, bool, 0644);
+MODULE_PARM_DESC(disable_cfc, "Disable credit based flow control");
+
+module_param(channel_mtu, int, 0644);
+MODULE_PARM_DESC(channel_mtu, "Default MTU for the RFCOMM channel");
+
+module_param(l2cap_mtu, uint, 0644);
+MODULE_PARM_DESC(l2cap_mtu, "Default MTU for the L2CAP connection");
+
+module_param(l2cap_ertm, bool, 0644);
+MODULE_PARM_DESC(l2cap_ertm, "Use L2CAP ERTM mode for connection");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth RFCOMM ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("bt-proto-3");
diff --git a/net/bluetooth_tizen/rfcomm/sock.c b/net/bluetooth_tizen/rfcomm/sock.c
new file mode 100644
index 0000000..22169c3
--- /dev/null
+++ b/net/bluetooth_tizen/rfcomm/sock.c
@@ -0,0 +1,1078 @@
+/*
+   RFCOMM implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
+   Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * RFCOMM sockets.
+ */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/socket.h>
+#include <linux/skbuff.h>
+#include <linux/list.h>
+#include <linux/device.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/security.h>
+#include <net/sock.h>
+
+#include <asm/system.h>
+#include <linux/uaccess.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+#include <net/bluetooth/rfcomm.h>
+
+static const struct proto_ops rfcomm_sock_ops;
+
+static struct bt_sock_list rfcomm_sk_list = {
+	.lock = __RW_LOCK_UNLOCKED(rfcomm_sk_list.lock)
+};
+
+static void rfcomm_sock_close(struct sock *sk);
+static void rfcomm_sock_kill(struct sock *sk);
+
+/* ---- DLC callbacks ----
+ *
+ * called under rfcomm_dlc_lock()
+ */
+static void rfcomm_sk_data_ready(struct rfcomm_dlc *d, struct sk_buff *skb)
+{
+	struct sock *sk = d->owner;
+	if (!sk)
+		return;
+
+	atomic_add(skb->len, &sk->sk_rmem_alloc);
+	skb_queue_tail(&sk->sk_receive_queue, skb);
+	sk->sk_data_ready(sk, skb->len);
+
+	if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
+		rfcomm_dlc_throttle(d);
+}
+
+static void rfcomm_sk_state_change(struct rfcomm_dlc *d, int err)
+{
+	struct sock *sk = d->owner, *parent;
+	unsigned long flags;
+
+	if (!sk)
+		return;
+
+	BT_DBG("dlc %p state %ld err %d", d, d->state, err);
+
+	local_irq_save(flags);
+	bh_lock_sock(sk);
+
+	if (err)
+		sk->sk_err = err;
+
+	sk->sk_state = d->state;
+
+	parent = bt_sk(sk)->parent;
+	if (parent) {
+		if (d->state == BT_CLOSED) {
+			sock_set_flag(sk, SOCK_ZAPPED);
+			bt_accept_unlink(sk);
+		}
+		parent->sk_data_ready(parent, 0);
+	} else {
+		if (d->state == BT_CONNECTED)
+			rfcomm_session_getaddr(d->session, &bt_sk(sk)->src, NULL);
+		sk->sk_state_change(sk);
+	}
+
+	bh_unlock_sock(sk);
+	local_irq_restore(flags);
+
+	if (parent && sock_flag(sk, SOCK_ZAPPED)) {
+		/* We have to drop DLC lock here, otherwise
+		 * rfcomm_sock_destruct() will dead lock. */
+		rfcomm_dlc_unlock(d);
+		rfcomm_sock_kill(sk);
+		rfcomm_dlc_lock(d);
+	}
+}
+
+/* ---- Socket functions ---- */
+static struct sock *__rfcomm_get_sock_by_addr(u8 channel, bdaddr_t *src)
+{
+	struct sock *sk = NULL;
+	struct hlist_node *node;
+
+	sk_for_each(sk, node, &rfcomm_sk_list.head) {
+		if (rfcomm_pi(sk)->channel == channel &&
+				!bacmp(&bt_sk(sk)->src, src))
+			break;
+	}
+
+	return node ? sk : NULL;
+}
+
+/* Find socket with channel and source bdaddr.
+ * Returns closest match.
+ */
+static struct sock *rfcomm_get_sock_by_channel(int state, u8 channel, bdaddr_t *src)
+{
+	struct sock *sk = NULL, *sk1 = NULL;
+	struct hlist_node *node;
+
+	read_lock(&rfcomm_sk_list.lock);
+
+	sk_for_each(sk, node, &rfcomm_sk_list.head) {
+		if (state && sk->sk_state != state)
+			continue;
+
+		if (rfcomm_pi(sk)->channel == channel) {
+			/* Exact match. */
+			if (!bacmp(&bt_sk(sk)->src, src))
+				break;
+
+			/* Closest match */
+			if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY))
+				sk1 = sk;
+		}
+	}
+
+	read_unlock(&rfcomm_sk_list.lock);
+
+	return node ? sk : sk1;
+}
+
+static void rfcomm_sock_destruct(struct sock *sk)
+{
+	struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc;
+
+	BT_DBG("sk %p dlc %p", sk, d);
+
+	skb_queue_purge(&sk->sk_receive_queue);
+	skb_queue_purge(&sk->sk_write_queue);
+
+	rfcomm_dlc_lock(d);
+	rfcomm_pi(sk)->dlc = NULL;
+
+	/* Detach DLC if it's owned by this socket */
+	if (d->owner == sk)
+		d->owner = NULL;
+	rfcomm_dlc_unlock(d);
+
+	rfcomm_dlc_put(d);
+}
+
+static void rfcomm_sock_cleanup_listen(struct sock *parent)
+{
+	struct sock *sk;
+
+	BT_DBG("parent %p", parent);
+
+	/* Close not yet accepted dlcs */
+	while ((sk = bt_accept_dequeue(parent, NULL))) {
+		rfcomm_sock_close(sk);
+		rfcomm_sock_kill(sk);
+	}
+
+	parent->sk_state  = BT_CLOSED;
+	sock_set_flag(parent, SOCK_ZAPPED);
+}
+
+/* Kill socket (only if zapped and orphan)
+ * Must be called on unlocked socket.
+ */
+static void rfcomm_sock_kill(struct sock *sk)
+{
+	if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket)
+		return;
+
+	BT_DBG("sk %p state %d refcnt %d", sk, sk->sk_state, atomic_read(&sk->sk_refcnt));
+
+	/* Kill poor orphan */
+	bt_sock_unlink(&rfcomm_sk_list, sk);
+	sock_set_flag(sk, SOCK_DEAD);
+	sock_put(sk);
+}
+
+static void __rfcomm_sock_close(struct sock *sk)
+{
+	struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc;
+
+	BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket);
+
+	switch (sk->sk_state) {
+	case BT_LISTEN:
+		rfcomm_sock_cleanup_listen(sk);
+		break;
+
+	case BT_CONNECT:
+	case BT_CONNECT2:
+	case BT_CONFIG:
+	case BT_CONNECTED:
+		rfcomm_dlc_close(d, 0);
+
+	default:
+		sock_set_flag(sk, SOCK_ZAPPED);
+		break;
+	}
+}
+
+/* Close socket.
+ * Must be called on unlocked socket.
+ */
+static void rfcomm_sock_close(struct sock *sk)
+{
+	lock_sock(sk);
+	__rfcomm_sock_close(sk);
+	release_sock(sk);
+}
+
+static void rfcomm_sock_init(struct sock *sk, struct sock *parent)
+{
+	struct rfcomm_pinfo *pi = rfcomm_pi(sk);
+
+	BT_DBG("sk %p", sk);
+
+	if (parent) {
+		sk->sk_type = parent->sk_type;
+		pi->dlc->defer_setup = bt_sk(parent)->defer_setup;
+
+		pi->sec_level = rfcomm_pi(parent)->sec_level;
+		pi->role_switch = rfcomm_pi(parent)->role_switch;
+
+		security_sk_clone(parent, sk);
+	} else {
+		pi->dlc->defer_setup = 0;
+
+		pi->sec_level = BT_SECURITY_LOW;
+		pi->role_switch = 0;
+	}
+
+	pi->dlc->sec_level = pi->sec_level;
+	pi->dlc->role_switch = pi->role_switch;
+}
+
+static struct proto rfcomm_proto = {
+	.name		= "RFCOMM",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct rfcomm_pinfo)
+};
+
+static struct sock *rfcomm_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
+{
+	struct rfcomm_dlc *d;
+	struct sock *sk;
+
+	sk = sk_alloc(net, PF_BLUETOOTH, prio, &rfcomm_proto);
+	if (!sk)
+		return NULL;
+
+	sock_init_data(sock, sk);
+	INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
+
+	d = rfcomm_dlc_alloc(prio);
+	if (!d) {
+		sk_free(sk);
+		return NULL;
+	}
+
+	d->data_ready   = rfcomm_sk_data_ready;
+	d->state_change = rfcomm_sk_state_change;
+
+	rfcomm_pi(sk)->dlc = d;
+	d->owner = sk;
+
+	sk->sk_destruct = rfcomm_sock_destruct;
+	sk->sk_sndtimeo = RFCOMM_CONN_TIMEOUT;
+
+	sk->sk_sndbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
+	sk->sk_rcvbuf = RFCOMM_MAX_CREDITS * RFCOMM_DEFAULT_MTU * 10;
+
+	sock_reset_flag(sk, SOCK_ZAPPED);
+
+	sk->sk_protocol = proto;
+	sk->sk_state    = BT_OPEN;
+
+	bt_sock_link(&rfcomm_sk_list, sk);
+
+	BT_DBG("sk %p", sk);
+	return sk;
+}
+
+static int rfcomm_sock_create(struct net *net, struct socket *sock,
+			      int protocol, int kern)
+{
+	struct sock *sk;
+
+	BT_DBG("sock %p", sock);
+
+	sock->state = SS_UNCONNECTED;
+
+	if (sock->type != SOCK_STREAM && sock->type != SOCK_RAW)
+		return -ESOCKTNOSUPPORT;
+
+	sock->ops = &rfcomm_sock_ops;
+
+	sk = rfcomm_sock_alloc(net, sock, protocol, GFP_ATOMIC);
+	if (!sk)
+		return -ENOMEM;
+
+	rfcomm_sock_init(sk, NULL);
+	return 0;
+}
+
+static int rfcomm_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
+{
+	struct sockaddr_rc *sa = (struct sockaddr_rc *) addr;
+	struct sock *sk = sock->sk;
+	int err = 0;
+
+	BT_DBG("sk %p %s", sk, batostr(&sa->rc_bdaddr));
+
+	if (!addr || addr->sa_family != AF_BLUETOOTH)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	if (sk->sk_state != BT_OPEN) {
+		err = -EBADFD;
+		goto done;
+	}
+
+	if (sk->sk_type != SOCK_STREAM) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	write_lock(&rfcomm_sk_list.lock);
+
+	if (sa->rc_channel && __rfcomm_get_sock_by_addr(sa->rc_channel, &sa->rc_bdaddr)) {
+		err = -EADDRINUSE;
+	} else {
+		/* Save source address */
+		bacpy(&bt_sk(sk)->src, &sa->rc_bdaddr);
+		rfcomm_pi(sk)->channel = sa->rc_channel;
+		sk->sk_state = BT_BOUND;
+	}
+
+	write_unlock(&rfcomm_sk_list.lock);
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
+{
+	struct sockaddr_rc *sa = (struct sockaddr_rc *) addr;
+	struct sock *sk = sock->sk;
+	struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc;
+	int err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	if (alen < sizeof(struct sockaddr_rc) ||
+	    addr->sa_family != AF_BLUETOOTH)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) {
+		err = -EBADFD;
+		goto done;
+	}
+
+	if (sk->sk_type != SOCK_STREAM) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	sk->sk_state = BT_CONNECT;
+	bacpy(&bt_sk(sk)->dst, &sa->rc_bdaddr);
+	rfcomm_pi(sk)->channel = sa->rc_channel;
+
+	d->sec_level = rfcomm_pi(sk)->sec_level;
+	d->role_switch = rfcomm_pi(sk)->role_switch;
+
+	err = rfcomm_dlc_open(d, &bt_sk(sk)->src, &sa->rc_bdaddr, sa->rc_channel);
+	if (!err)
+		err = bt_sock_wait_state(sk, BT_CONNECTED,
+				sock_sndtimeo(sk, flags & O_NONBLOCK));
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_listen(struct socket *sock, int backlog)
+{
+	struct sock *sk = sock->sk;
+	int err = 0;
+
+	BT_DBG("sk %p backlog %d", sk, backlog);
+
+	lock_sock(sk);
+
+	if (sk->sk_state != BT_BOUND) {
+		err = -EBADFD;
+		goto done;
+	}
+
+	if (sk->sk_type != SOCK_STREAM) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	if (!rfcomm_pi(sk)->channel) {
+		bdaddr_t *src = &bt_sk(sk)->src;
+		u8 channel;
+
+		err = -EINVAL;
+
+		write_lock(&rfcomm_sk_list.lock);
+
+		for (channel = 1; channel < 31; channel++)
+			if (!__rfcomm_get_sock_by_addr(channel, src)) {
+				rfcomm_pi(sk)->channel = channel;
+				err = 0;
+				break;
+			}
+
+		write_unlock(&rfcomm_sk_list.lock);
+
+		if (err < 0)
+			goto done;
+	}
+
+	sk->sk_max_ack_backlog = backlog;
+	sk->sk_ack_backlog = 0;
+	sk->sk_state = BT_LISTEN;
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int flags)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	struct sock *sk = sock->sk, *nsk;
+	long timeo;
+	int err = 0;
+
+	lock_sock(sk);
+
+	if (sk->sk_type != SOCK_STREAM) {
+		err = -EINVAL;
+		goto done;
+	}
+
+	timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+
+	BT_DBG("sk %p timeo %ld", sk, timeo);
+
+	/* Wait for an incoming connection. (wake-one). */
+	add_wait_queue_exclusive(sk_sleep(sk), &wait);
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (sk->sk_state != BT_LISTEN) {
+			err = -EBADFD;
+			break;
+		}
+
+		nsk = bt_accept_dequeue(sk, newsock);
+		if (nsk)
+			break;
+
+		if (!timeo) {
+			err = -EAGAIN;
+			break;
+		}
+
+		if (signal_pending(current)) {
+			err = sock_intr_errno(timeo);
+			break;
+		}
+
+		release_sock(sk);
+		timeo = schedule_timeout(timeo);
+		lock_sock(sk);
+	}
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+
+	if (err)
+		goto done;
+
+	newsock->state = SS_CONNECTED;
+
+	BT_DBG("new socket %p", nsk);
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer)
+{
+	struct sockaddr_rc *sa = (struct sockaddr_rc *) addr;
+	struct sock *sk = sock->sk;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	sa->rc_family  = AF_BLUETOOTH;
+	sa->rc_channel = rfcomm_pi(sk)->channel;
+	if (peer)
+		bacpy(&sa->rc_bdaddr, &bt_sk(sk)->dst);
+	else
+		bacpy(&sa->rc_bdaddr, &bt_sk(sk)->src);
+
+	*len = sizeof(struct sockaddr_rc);
+	return 0;
+}
+
+static int rfcomm_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
+			       struct msghdr *msg, size_t len)
+{
+	struct sock *sk = sock->sk;
+	struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc;
+	struct sk_buff *skb;
+	int sent = 0;
+
+	if (test_bit(RFCOMM_DEFER_SETUP, &d->flags))
+		return -ENOTCONN;
+
+	if (msg->msg_flags & MSG_OOB)
+		return -EOPNOTSUPP;
+
+	if (sk->sk_shutdown & SEND_SHUTDOWN)
+		return -EPIPE;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	lock_sock(sk);
+
+	while (len) {
+		size_t size = min_t(size_t, len, d->mtu);
+		int err;
+
+		skb = sock_alloc_send_skb(sk, size + RFCOMM_SKB_RESERVE,
+				msg->msg_flags & MSG_DONTWAIT, &err);
+		if (!skb) {
+			if (sent == 0)
+				sent = err;
+			break;
+		}
+		skb_reserve(skb, RFCOMM_SKB_HEAD_RESERVE);
+
+		err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
+		if (err) {
+			kfree_skb(skb);
+			if (sent == 0)
+				sent = err;
+			break;
+		}
+
+		skb->priority = sk->sk_priority;
+
+		err = rfcomm_dlc_send(d, skb);
+		if (err < 0) {
+			kfree_skb(skb);
+			if (sent == 0)
+				sent = err;
+			break;
+		}
+
+		sent += size;
+		len  -= size;
+	}
+
+	release_sock(sk);
+
+	return sent;
+}
+
+static int rfcomm_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
+			       struct msghdr *msg, size_t size, int flags)
+{
+	struct sock *sk = sock->sk;
+	struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc;
+	int len;
+
+	if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
+		rfcomm_dlc_accept(d);
+		return 0;
+	}
+
+	len = bt_sock_stream_recvmsg(iocb, sock, msg, size, flags);
+
+	lock_sock(sk);
+	if (!(flags & MSG_PEEK) && len > 0)
+		atomic_sub(len, &sk->sk_rmem_alloc);
+
+	if (atomic_read(&sk->sk_rmem_alloc) <= (sk->sk_rcvbuf >> 2))
+		rfcomm_dlc_unthrottle(rfcomm_pi(sk)->dlc);
+	release_sock(sk);
+
+	return len;
+}
+
+static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen)
+{
+	struct sock *sk = sock->sk;
+	int err = 0;
+	u32 opt;
+
+	BT_DBG("sk %p", sk);
+
+	lock_sock(sk);
+
+	switch (optname) {
+	case RFCOMM_LM:
+		if (get_user(opt, (u32 __user *) optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (opt & RFCOMM_LM_AUTH)
+			rfcomm_pi(sk)->sec_level = BT_SECURITY_LOW;
+		if (opt & RFCOMM_LM_ENCRYPT)
+			rfcomm_pi(sk)->sec_level = BT_SECURITY_MEDIUM;
+		if (opt & RFCOMM_LM_SECURE)
+			rfcomm_pi(sk)->sec_level = BT_SECURITY_HIGH;
+
+		rfcomm_pi(sk)->role_switch = (opt & RFCOMM_LM_MASTER);
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
+{
+	struct sock *sk = sock->sk;
+	struct bt_security sec;
+	int err = 0;
+	size_t len;
+	u32 opt;
+
+	BT_DBG("sk %p", sk);
+
+	if (level == SOL_RFCOMM)
+		return rfcomm_sock_setsockopt_old(sock, optname, optval, optlen);
+
+	if (level != SOL_BLUETOOTH)
+		return -ENOPROTOOPT;
+
+	lock_sock(sk);
+
+	switch (optname) {
+	case BT_SECURITY:
+		if (sk->sk_type != SOCK_STREAM) {
+			err = -EINVAL;
+			break;
+		}
+
+		sec.level = BT_SECURITY_LOW;
+
+		len = min_t(unsigned int, sizeof(sec), optlen);
+		if (copy_from_user((char *) &sec, optval, len)) {
+			err = -EFAULT;
+			break;
+		}
+
+		if (sec.level > BT_SECURITY_HIGH) {
+			err = -EINVAL;
+			break;
+		}
+
+		rfcomm_pi(sk)->sec_level = sec.level;
+		break;
+
+	case BT_DEFER_SETUP:
+		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (get_user(opt, (u32 __user *) optval)) {
+			err = -EFAULT;
+			break;
+		}
+
+		bt_sk(sk)->defer_setup = opt;
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
+{
+	struct sock *sk = sock->sk;
+	struct rfcomm_conninfo cinfo;
+	struct l2cap_conn *conn = l2cap_pi(sk)->chan->conn;
+	int len, err = 0;
+	u32 opt;
+
+	BT_DBG("sk %p", sk);
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	lock_sock(sk);
+
+	switch (optname) {
+	case RFCOMM_LM:
+		switch (rfcomm_pi(sk)->sec_level) {
+		case BT_SECURITY_LOW:
+			opt = RFCOMM_LM_AUTH;
+			break;
+		case BT_SECURITY_MEDIUM:
+			opt = RFCOMM_LM_AUTH | RFCOMM_LM_ENCRYPT;
+			break;
+		case BT_SECURITY_HIGH:
+			opt = RFCOMM_LM_AUTH | RFCOMM_LM_ENCRYPT |
+							RFCOMM_LM_SECURE;
+			break;
+		default:
+			opt = 0;
+			break;
+		}
+
+		if (rfcomm_pi(sk)->role_switch)
+			opt |= RFCOMM_LM_MASTER;
+
+		if (put_user(opt, (u32 __user *) optval))
+			err = -EFAULT;
+		break;
+
+	case RFCOMM_CONNINFO:
+		if (sk->sk_state != BT_CONNECTED &&
+					!rfcomm_pi(sk)->dlc->defer_setup) {
+			err = -ENOTCONN;
+			break;
+		}
+
+		memset(&cinfo, 0, sizeof(cinfo));
+		cinfo.hci_handle = conn->hcon->handle;
+		memcpy(cinfo.dev_class, conn->hcon->dev_class, 3);
+
+		len = min_t(unsigned int, len, sizeof(cinfo));
+		if (copy_to_user(optval, (char *) &cinfo, len))
+			err = -EFAULT;
+
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+{
+	struct sock *sk = sock->sk;
+	struct bt_security sec;
+	int len, err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	if (level == SOL_RFCOMM)
+		return rfcomm_sock_getsockopt_old(sock, optname, optval, optlen);
+
+	if (level != SOL_BLUETOOTH)
+		return -ENOPROTOOPT;
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	lock_sock(sk);
+
+	switch (optname) {
+	case BT_SECURITY:
+		if (sk->sk_type != SOCK_STREAM) {
+			err = -EINVAL;
+			break;
+		}
+
+		sec.level = rfcomm_pi(sk)->sec_level;
+
+		len = min_t(unsigned int, len, sizeof(sec));
+		if (copy_to_user(optval, (char *) &sec, len))
+			err = -EFAULT;
+
+		break;
+
+	case BT_DEFER_SETUP:
+		if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+			err = -EINVAL;
+			break;
+		}
+
+		if (put_user(bt_sk(sk)->defer_setup, (u32 __user *) optval))
+			err = -EFAULT;
+
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+	struct sock *sk __maybe_unused = sock->sk;
+	int err;
+
+	BT_DBG("sk %p cmd %x arg %lx", sk, cmd, arg);
+
+	err = bt_sock_ioctl(sock, cmd, arg);
+
+	if (err == -ENOIOCTLCMD) {
+#ifdef CONFIG_BT_RFCOMM_TTY
+		lock_sock(sk);
+		err = rfcomm_dev_ioctl(sk, cmd, (void __user *) arg);
+		release_sock(sk);
+#else
+		err = -EOPNOTSUPP;
+#endif
+	}
+
+	return err;
+}
+
+static int rfcomm_sock_shutdown(struct socket *sock, int how)
+{
+	struct sock *sk = sock->sk;
+	int err = 0;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	lock_sock(sk);
+	if (!sk->sk_shutdown) {
+		sk->sk_shutdown = SHUTDOWN_MASK;
+		__rfcomm_sock_close(sk);
+
+		if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
+			err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime);
+	}
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_release(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+	int err;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	err = rfcomm_sock_shutdown(sock, 2);
+
+	sock_orphan(sk);
+	rfcomm_sock_kill(sk);
+	return err;
+}
+
+/* ---- RFCOMM core layer callbacks ----
+ *
+ * called under rfcomm_lock()
+ */
+int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel, struct rfcomm_dlc **d)
+{
+	struct sock *sk, *parent;
+	bdaddr_t src, dst;
+	int result = 0;
+
+	BT_DBG("session %p channel %d", s, channel);
+
+	rfcomm_session_getaddr(s, &src, &dst);
+
+	/* Check if we have socket listening on channel */
+	parent = rfcomm_get_sock_by_channel(BT_LISTEN, channel, &src);
+	if (!parent)
+		return 0;
+
+	bh_lock_sock(parent);
+
+	/* Check for backlog size */
+	if (sk_acceptq_is_full(parent)) {
+		BT_DBG("backlog full %d", parent->sk_ack_backlog);
+		goto done;
+	}
+
+	sk = rfcomm_sock_alloc(sock_net(parent), NULL, BTPROTO_RFCOMM, GFP_ATOMIC);
+	if (!sk)
+		goto done;
+
+	bt_sock_reclassify_lock(sk, BTPROTO_RFCOMM);
+
+	rfcomm_sock_init(sk, parent);
+	bacpy(&bt_sk(sk)->src, &src);
+	bacpy(&bt_sk(sk)->dst, &dst);
+	rfcomm_pi(sk)->channel = channel;
+
+	sk->sk_state = BT_CONFIG;
+	bt_accept_enqueue(parent, sk);
+
+	/* Accept connection and return socket DLC */
+	*d = rfcomm_pi(sk)->dlc;
+	result = 1;
+
+done:
+	bh_unlock_sock(parent);
+
+	if (bt_sk(parent)->defer_setup)
+		parent->sk_state_change(parent);
+
+	return result;
+}
+
+static int rfcomm_sock_debugfs_show(struct seq_file *f, void *p)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+
+	read_lock(&rfcomm_sk_list.lock);
+
+	sk_for_each(sk, node, &rfcomm_sk_list.head) {
+		seq_printf(f, "%s %s %d %d\n",
+				batostr(&bt_sk(sk)->src),
+				batostr(&bt_sk(sk)->dst),
+				sk->sk_state, rfcomm_pi(sk)->channel);
+	}
+
+	read_unlock(&rfcomm_sk_list.lock);
+
+	return 0;
+}
+
+static int rfcomm_sock_debugfs_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, rfcomm_sock_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations rfcomm_sock_debugfs_fops = {
+	.open		= rfcomm_sock_debugfs_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static struct dentry *rfcomm_sock_debugfs;
+
+static const struct proto_ops rfcomm_sock_ops = {
+	.family		= PF_BLUETOOTH,
+	.owner		= THIS_MODULE,
+	.release	= rfcomm_sock_release,
+	.bind		= rfcomm_sock_bind,
+	.connect	= rfcomm_sock_connect,
+	.listen		= rfcomm_sock_listen,
+	.accept		= rfcomm_sock_accept,
+	.getname	= rfcomm_sock_getname,
+	.sendmsg	= rfcomm_sock_sendmsg,
+	.recvmsg	= rfcomm_sock_recvmsg,
+	.shutdown	= rfcomm_sock_shutdown,
+	.setsockopt	= rfcomm_sock_setsockopt,
+	.getsockopt	= rfcomm_sock_getsockopt,
+	.ioctl		= rfcomm_sock_ioctl,
+	.poll		= bt_sock_poll,
+	.socketpair	= sock_no_socketpair,
+	.mmap		= sock_no_mmap
+};
+
+static const struct net_proto_family rfcomm_sock_family_ops = {
+	.family		= PF_BLUETOOTH,
+	.owner		= THIS_MODULE,
+	.create		= rfcomm_sock_create
+};
+
+int __init rfcomm_init_sockets(void)
+{
+	int err;
+
+	err = proto_register(&rfcomm_proto, 0);
+	if (err < 0)
+		return err;
+
+	err = bt_sock_register(BTPROTO_RFCOMM, &rfcomm_sock_family_ops);
+	if (err < 0)
+		goto error;
+
+	if (bt_debugfs) {
+		rfcomm_sock_debugfs = debugfs_create_file("rfcomm", 0444,
+				bt_debugfs, NULL, &rfcomm_sock_debugfs_fops);
+		if (!rfcomm_sock_debugfs)
+			BT_ERR("Failed to create RFCOMM debug file");
+	}
+
+	BT_INFO("RFCOMM socket layer initialized");
+
+	return 0;
+
+error:
+	BT_ERR("RFCOMM socket layer registration failed");
+	proto_unregister(&rfcomm_proto);
+	return err;
+}
+
+void __exit rfcomm_cleanup_sockets(void)
+{
+	debugfs_remove(rfcomm_sock_debugfs);
+
+	if (bt_sock_unregister(BTPROTO_RFCOMM) < 0)
+		BT_ERR("RFCOMM socket layer unregistration failed");
+
+	proto_unregister(&rfcomm_proto);
+}
diff --git a/net/bluetooth_tizen/rfcomm/tty.c b/net/bluetooth_tizen/rfcomm/tty.c
new file mode 100644
index 0000000..4bf54b3
--- /dev/null
+++ b/net/bluetooth_tizen/rfcomm/tty.c
@@ -0,0 +1,1188 @@
+/*
+   RFCOMM implementation for Linux Bluetooth stack (BlueZ).
+   Copyright (C) 2002 Maxim Krasnyansky <maxk@qualcomm.com>
+   Copyright (C) 2002 Marcel Holtmann <marcel@holtmann.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * RFCOMM TTY.
+ */
+
+#include <linux/module.h>
+
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+
+#include <linux/capability.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/rfcomm.h>
+
+#define RFCOMM_TTY_MAGIC 0x6d02		/* magic number for rfcomm struct */
+#define RFCOMM_TTY_PORTS RFCOMM_MAX_DEV	/* whole lotta rfcomm devices */
+#define RFCOMM_TTY_MAJOR 216		/* device node major id of the usb/bluetooth.c driver */
+#define RFCOMM_TTY_MINOR 0
+
+static struct tty_driver *rfcomm_tty_driver;
+
+struct rfcomm_dev {
+	struct list_head	list;
+	atomic_t		refcnt;
+
+	char			name[12];
+	int			id;
+	unsigned long		flags;
+	atomic_t		opened;
+	int			err;
+
+	bdaddr_t		src;
+	bdaddr_t		dst;
+	u8			channel;
+
+	uint			modem_status;
+
+	struct rfcomm_dlc	*dlc;
+	struct tty_struct	*tty;
+	wait_queue_head_t       wait;
+	struct work_struct	wakeup_task;
+
+	struct device		*tty_dev;
+
+	atomic_t		wmem_alloc;
+
+	struct sk_buff_head	pending;
+};
+
+static LIST_HEAD(rfcomm_dev_list);
+static DEFINE_SPINLOCK(rfcomm_dev_lock);
+
+static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb);
+static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err);
+static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig);
+
+static void rfcomm_tty_wakeup(struct work_struct *work);
+
+/* ---- Device functions ---- */
+static void rfcomm_dev_destruct(struct rfcomm_dev *dev)
+{
+	struct rfcomm_dlc *dlc = dev->dlc;
+
+	BT_DBG("dev %p dlc %p", dev, dlc);
+
+	/* Refcount should only hit zero when called from rfcomm_dev_del()
+	   which will have taken us off the list. Everything else are
+	   refcounting bugs. */
+	BUG_ON(!list_empty(&dev->list));
+
+	rfcomm_dlc_lock(dlc);
+	/* Detach DLC if it's owned by this dev */
+	if (dlc->owner == dev)
+		dlc->owner = NULL;
+	rfcomm_dlc_unlock(dlc);
+
+	rfcomm_dlc_put(dlc);
+
+	tty_unregister_device(rfcomm_tty_driver, dev->id);
+
+	kfree(dev);
+
+	/* It's safe to call module_put() here because socket still
+	   holds reference to this module. */
+	module_put(THIS_MODULE);
+}
+
+static inline void rfcomm_dev_hold(struct rfcomm_dev *dev)
+{
+	atomic_inc(&dev->refcnt);
+}
+
+static inline void rfcomm_dev_put(struct rfcomm_dev *dev)
+{
+	/* The reason this isn't actually a race, as you no
+	   doubt have a little voice screaming at you in your
+	   head, is that the refcount should never actually
+	   reach zero unless the device has already been taken
+	   off the list, in rfcomm_dev_del(). And if that's not
+	   true, we'll hit the BUG() in rfcomm_dev_destruct()
+	   anyway. */
+	if (atomic_dec_and_test(&dev->refcnt))
+		rfcomm_dev_destruct(dev);
+}
+
+static struct rfcomm_dev *__rfcomm_dev_get(int id)
+{
+	struct rfcomm_dev *dev;
+
+	list_for_each_entry(dev, &rfcomm_dev_list, list)
+		if (dev->id == id)
+			return dev;
+
+	return NULL;
+}
+
+static inline struct rfcomm_dev *rfcomm_dev_get(int id)
+{
+	struct rfcomm_dev *dev;
+
+	spin_lock(&rfcomm_dev_lock);
+
+	dev = __rfcomm_dev_get(id);
+
+	if (dev) {
+		if (test_bit(RFCOMM_TTY_RELEASED, &dev->flags))
+			dev = NULL;
+		else
+			rfcomm_dev_hold(dev);
+	}
+
+	spin_unlock(&rfcomm_dev_lock);
+
+	return dev;
+}
+
+static struct device *rfcomm_get_device(struct rfcomm_dev *dev)
+{
+	struct hci_dev *hdev;
+	struct hci_conn *conn;
+
+	hdev = hci_get_route(&dev->dst, &dev->src);
+	if (!hdev)
+		return NULL;
+
+	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &dev->dst);
+
+	hci_dev_put(hdev);
+
+	return conn ? &conn->dev : NULL;
+}
+
+static ssize_t show_address(struct device *tty_dev, struct device_attribute *attr, char *buf)
+{
+	struct rfcomm_dev *dev = dev_get_drvdata(tty_dev);
+	return sprintf(buf, "%s\n", batostr(&dev->dst));
+}
+
+static ssize_t show_channel(struct device *tty_dev, struct device_attribute *attr, char *buf)
+{
+	struct rfcomm_dev *dev = dev_get_drvdata(tty_dev);
+	return sprintf(buf, "%d\n", dev->channel);
+}
+
+static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
+static DEVICE_ATTR(channel, S_IRUGO, show_channel, NULL);
+
+static int rfcomm_dev_add(struct rfcomm_dev_req *req, struct rfcomm_dlc *dlc)
+{
+	struct rfcomm_dev *dev, *entry;
+	struct list_head *head = &rfcomm_dev_list;
+	int err = 0;
+
+	BT_DBG("id %d channel %d", req->dev_id, req->channel);
+
+	dev = kzalloc(sizeof(struct rfcomm_dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	spin_lock(&rfcomm_dev_lock);
+
+	if (req->dev_id < 0) {
+		dev->id = 0;
+
+		list_for_each_entry(entry, &rfcomm_dev_list, list) {
+			if (entry->id != dev->id)
+				break;
+
+			dev->id++;
+			head = &entry->list;
+		}
+	} else {
+		dev->id = req->dev_id;
+
+		list_for_each_entry(entry, &rfcomm_dev_list, list) {
+			if (entry->id == dev->id) {
+				err = -EADDRINUSE;
+				goto out;
+			}
+
+			if (entry->id > dev->id - 1)
+				break;
+
+			head = &entry->list;
+		}
+	}
+
+	if ((dev->id < 0) || (dev->id > RFCOMM_MAX_DEV - 1)) {
+		err = -ENFILE;
+		goto out;
+	}
+
+	sprintf(dev->name, "rfcomm%d", dev->id);
+
+	list_add(&dev->list, head);
+	atomic_set(&dev->refcnt, 1);
+
+	bacpy(&dev->src, &req->src);
+	bacpy(&dev->dst, &req->dst);
+	dev->channel = req->channel;
+
+	dev->flags = req->flags &
+		((1 << RFCOMM_RELEASE_ONHUP) | (1 << RFCOMM_REUSE_DLC));
+
+	atomic_set(&dev->opened, 0);
+
+	init_waitqueue_head(&dev->wait);
+	INIT_WORK(&dev->wakeup_task, rfcomm_tty_wakeup);
+
+	skb_queue_head_init(&dev->pending);
+
+	rfcomm_dlc_lock(dlc);
+
+	if (req->flags & (1 << RFCOMM_REUSE_DLC)) {
+		struct sock *sk = dlc->owner;
+		struct sk_buff *skb;
+
+		BUG_ON(!sk);
+
+		rfcomm_dlc_throttle(dlc);
+
+		while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
+			skb_orphan(skb);
+			skb_queue_tail(&dev->pending, skb);
+			atomic_sub(skb->len, &sk->sk_rmem_alloc);
+		}
+	}
+
+	dlc->data_ready   = rfcomm_dev_data_ready;
+	dlc->state_change = rfcomm_dev_state_change;
+	dlc->modem_status = rfcomm_dev_modem_status;
+
+	dlc->owner = dev;
+	dev->dlc   = dlc;
+
+	rfcomm_dev_modem_status(dlc, dlc->remote_v24_sig);
+
+	rfcomm_dlc_unlock(dlc);
+
+	/* It's safe to call __module_get() here because socket already
+	   holds reference to this module. */
+	__module_get(THIS_MODULE);
+
+out:
+	spin_unlock(&rfcomm_dev_lock);
+
+	if (err < 0)
+		goto free;
+
+	dev->tty_dev = tty_register_device(rfcomm_tty_driver, dev->id, NULL);
+
+	if (IS_ERR(dev->tty_dev)) {
+		err = PTR_ERR(dev->tty_dev);
+		list_del(&dev->list);
+		goto free;
+	}
+
+	dev_set_drvdata(dev->tty_dev, dev);
+
+	if (device_create_file(dev->tty_dev, &dev_attr_address) < 0)
+		BT_ERR("Failed to create address attribute");
+
+	if (device_create_file(dev->tty_dev, &dev_attr_channel) < 0)
+		BT_ERR("Failed to create channel attribute");
+
+	return dev->id;
+
+free:
+	kfree(dev);
+	return err;
+}
+
+static void rfcomm_dev_del(struct rfcomm_dev *dev)
+{
+	BT_DBG("dev %p", dev);
+
+	BUG_ON(test_and_set_bit(RFCOMM_TTY_RELEASED, &dev->flags));
+
+	if (atomic_read(&dev->opened) > 0)
+		return;
+
+	spin_lock(&rfcomm_dev_lock);
+	list_del_init(&dev->list);
+	spin_unlock(&rfcomm_dev_lock);
+
+	rfcomm_dev_put(dev);
+}
+
+/* ---- Send buffer ---- */
+static inline unsigned int rfcomm_room(struct rfcomm_dlc *dlc)
+{
+	/* We can't let it be zero, because we don't get a callback
+	   when tx_credits becomes nonzero, hence we'd never wake up */
+	return dlc->mtu * (dlc->tx_credits?:1);
+}
+
+static void rfcomm_wfree(struct sk_buff *skb)
+{
+	struct rfcomm_dev *dev = (void *) skb->sk;
+	atomic_sub(skb->truesize, &dev->wmem_alloc);
+	if (test_bit(RFCOMM_TTY_ATTACHED, &dev->flags))
+		queue_work(system_nrt_wq, &dev->wakeup_task);
+	rfcomm_dev_put(dev);
+}
+
+static inline void rfcomm_set_owner_w(struct sk_buff *skb, struct rfcomm_dev *dev)
+{
+	rfcomm_dev_hold(dev);
+	atomic_add(skb->truesize, &dev->wmem_alloc);
+	skb->sk = (void *) dev;
+	skb->destructor = rfcomm_wfree;
+}
+
+static struct sk_buff *rfcomm_wmalloc(struct rfcomm_dev *dev, unsigned long size, gfp_t priority)
+{
+	if (atomic_read(&dev->wmem_alloc) < rfcomm_room(dev->dlc)) {
+		struct sk_buff *skb = alloc_skb(size, priority);
+		if (skb) {
+			rfcomm_set_owner_w(skb, dev);
+			return skb;
+		}
+	}
+	return NULL;
+}
+
+/* ---- Device IOCTLs ---- */
+
+#define NOCAP_FLAGS ((1 << RFCOMM_REUSE_DLC) | (1 << RFCOMM_RELEASE_ONHUP))
+
+static int rfcomm_create_dev(struct sock *sk, void __user *arg)
+{
+	struct rfcomm_dev_req req;
+	struct rfcomm_dlc *dlc;
+	int id;
+
+	if (copy_from_user(&req, arg, sizeof(req)))
+		return -EFAULT;
+
+	BT_DBG("sk %p dev_id %d flags 0x%x", sk, req.dev_id, req.flags);
+
+	if (req.flags != NOCAP_FLAGS && !capable(CAP_NET_ADMIN))
+		return -EPERM;
+
+	if (req.flags & (1 << RFCOMM_REUSE_DLC)) {
+		/* Socket must be connected */
+		if (sk->sk_state != BT_CONNECTED)
+			return -EBADFD;
+
+		dlc = rfcomm_pi(sk)->dlc;
+		rfcomm_dlc_hold(dlc);
+	} else {
+		dlc = rfcomm_dlc_alloc(GFP_KERNEL);
+		if (!dlc)
+			return -ENOMEM;
+	}
+
+	id = rfcomm_dev_add(&req, dlc);
+	if (id < 0) {
+		rfcomm_dlc_put(dlc);
+		return id;
+	}
+
+	if (req.flags & (1 << RFCOMM_REUSE_DLC)) {
+		/* DLC is now used by device.
+		 * Socket must be disconnected */
+		sk->sk_state = BT_CLOSED;
+	}
+
+	return id;
+}
+
+static int rfcomm_release_dev(void __user *arg)
+{
+	struct rfcomm_dev_req req;
+	struct rfcomm_dev *dev;
+
+	if (copy_from_user(&req, arg, sizeof(req)))
+		return -EFAULT;
+
+	BT_DBG("dev_id %d flags 0x%x", req.dev_id, req.flags);
+
+	dev = rfcomm_dev_get(req.dev_id);
+	if (!dev)
+		return -ENODEV;
+
+	if (dev->flags != NOCAP_FLAGS && !capable(CAP_NET_ADMIN)) {
+		rfcomm_dev_put(dev);
+		return -EPERM;
+	}
+
+	if (req.flags & (1 << RFCOMM_HANGUP_NOW))
+		rfcomm_dlc_close(dev->dlc, 0);
+
+	/* Shut down TTY synchronously before freeing rfcomm_dev */
+	if (dev->tty)
+		tty_vhangup(dev->tty);
+
+	if (!test_bit(RFCOMM_RELEASE_ONHUP, &dev->flags))
+		rfcomm_dev_del(dev);
+	rfcomm_dev_put(dev);
+	return 0;
+}
+
+static int rfcomm_get_dev_list(void __user *arg)
+{
+	struct rfcomm_dev *dev;
+	struct rfcomm_dev_list_req *dl;
+	struct rfcomm_dev_info *di;
+	int n = 0, size, err;
+	u16 dev_num;
+
+	BT_DBG("");
+
+	if (get_user(dev_num, (u16 __user *) arg))
+		return -EFAULT;
+
+	if (!dev_num || dev_num > (PAGE_SIZE * 4) / sizeof(*di))
+		return -EINVAL;
+
+	size = sizeof(*dl) + dev_num * sizeof(*di);
+
+	dl = kmalloc(size, GFP_KERNEL);
+	if (!dl)
+		return -ENOMEM;
+
+	di = dl->dev_info;
+
+	spin_lock(&rfcomm_dev_lock);
+
+	list_for_each_entry(dev, &rfcomm_dev_list, list) {
+		if (test_bit(RFCOMM_TTY_RELEASED, &dev->flags))
+			continue;
+		(di + n)->id      = dev->id;
+		(di + n)->flags   = dev->flags;
+		(di + n)->state   = dev->dlc->state;
+		(di + n)->channel = dev->channel;
+		bacpy(&(di + n)->src, &dev->src);
+		bacpy(&(di + n)->dst, &dev->dst);
+		if (++n >= dev_num)
+			break;
+	}
+
+	spin_unlock(&rfcomm_dev_lock);
+
+	dl->dev_num = n;
+	size = sizeof(*dl) + n * sizeof(*di);
+
+	err = copy_to_user(arg, dl, size);
+	kfree(dl);
+
+	return err ? -EFAULT : 0;
+}
+
+static int rfcomm_get_dev_info(void __user *arg)
+{
+	struct rfcomm_dev *dev;
+	struct rfcomm_dev_info di;
+	int err = 0;
+
+	BT_DBG("");
+
+	if (copy_from_user(&di, arg, sizeof(di)))
+		return -EFAULT;
+
+	dev = rfcomm_dev_get(di.id);
+	if (!dev)
+		return -ENODEV;
+
+	di.flags   = dev->flags;
+	di.channel = dev->channel;
+	di.state   = dev->dlc->state;
+	bacpy(&di.src, &dev->src);
+	bacpy(&di.dst, &dev->dst);
+
+	if (copy_to_user(arg, &di, sizeof(di)))
+		err = -EFAULT;
+
+	rfcomm_dev_put(dev);
+	return err;
+}
+
+int rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
+{
+	BT_DBG("cmd %d arg %p", cmd, arg);
+
+	switch (cmd) {
+	case RFCOMMCREATEDEV:
+		return rfcomm_create_dev(sk, arg);
+
+	case RFCOMMRELEASEDEV:
+		return rfcomm_release_dev(arg);
+
+	case RFCOMMGETDEVLIST:
+		return rfcomm_get_dev_list(arg);
+
+	case RFCOMMGETDEVINFO:
+		return rfcomm_get_dev_info(arg);
+	}
+
+	return -EINVAL;
+}
+
+/* ---- DLC callbacks ---- */
+static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb)
+{
+	struct rfcomm_dev *dev = dlc->owner;
+	struct tty_struct *tty;
+
+	if (!dev) {
+		kfree_skb(skb);
+		return;
+	}
+
+	tty = dev->tty;
+	if (!tty || !skb_queue_empty(&dev->pending)) {
+		skb_queue_tail(&dev->pending, skb);
+		return;
+	}
+
+	BT_DBG("dlc %p tty %p len %d", dlc, tty, skb->len);
+
+	tty_insert_flip_string(tty, skb->data, skb->len);
+	tty_flip_buffer_push(tty);
+
+	kfree_skb(skb);
+}
+
+static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err)
+{
+	struct rfcomm_dev *dev = dlc->owner;
+	if (!dev)
+		return;
+
+	BT_DBG("dlc %p dev %p err %d", dlc, dev, err);
+
+	dev->err = err;
+	wake_up_interruptible(&dev->wait);
+
+	if (dlc->state == BT_CLOSED) {
+		if (!dev->tty) {
+			if (test_bit(RFCOMM_RELEASE_ONHUP, &dev->flags)) {
+				/* Drop DLC lock here to avoid deadlock
+				 * 1. rfcomm_dev_get will take rfcomm_dev_lock
+				 *    but in rfcomm_dev_add there's lock order:
+				 *    rfcomm_dev_lock -> dlc lock
+				 * 2. rfcomm_dev_put will deadlock if it's
+				 *    the last reference
+				 */
+				rfcomm_dlc_unlock(dlc);
+				if (rfcomm_dev_get(dev->id) == NULL) {
+					rfcomm_dlc_lock(dlc);
+					return;
+				}
+
+				rfcomm_dev_del(dev);
+				rfcomm_dev_put(dev);
+				rfcomm_dlc_lock(dlc);
+			}
+		} else
+			tty_hangup(dev->tty);
+	}
+}
+
+static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig)
+{
+	struct rfcomm_dev *dev = dlc->owner;
+	if (!dev)
+		return;
+
+	BT_DBG("dlc %p dev %p v24_sig 0x%02x", dlc, dev, v24_sig);
+
+	if ((dev->modem_status & TIOCM_CD) && !(v24_sig & RFCOMM_V24_DV)) {
+		if (dev->tty && !C_CLOCAL(dev->tty))
+			tty_hangup(dev->tty);
+	}
+
+	dev->modem_status =
+		((v24_sig & RFCOMM_V24_RTC) ? (TIOCM_DSR | TIOCM_DTR) : 0) |
+		((v24_sig & RFCOMM_V24_RTR) ? (TIOCM_RTS | TIOCM_CTS) : 0) |
+		((v24_sig & RFCOMM_V24_IC)  ? TIOCM_RI : 0) |
+		((v24_sig & RFCOMM_V24_DV)  ? TIOCM_CD : 0);
+}
+
+/* ---- TTY functions ---- */
+static void rfcomm_tty_wakeup(struct work_struct *work)
+{
+	struct rfcomm_dev *dev = container_of(work, struct rfcomm_dev,
+								wakeup_task);
+	struct tty_struct *tty = dev->tty;
+	if (!tty)
+		return;
+
+	BT_DBG("dev %p tty %p", dev, tty);
+	tty_wakeup(tty);
+}
+
+static void rfcomm_tty_copy_pending(struct rfcomm_dev *dev)
+{
+	struct tty_struct *tty = dev->tty;
+	struct sk_buff *skb;
+	int inserted = 0;
+
+	if (!tty)
+		return;
+
+	BT_DBG("dev %p tty %p", dev, tty);
+
+	rfcomm_dlc_lock(dev->dlc);
+
+	while ((skb = skb_dequeue(&dev->pending))) {
+		inserted += tty_insert_flip_string(tty, skb->data, skb->len);
+		kfree_skb(skb);
+	}
+
+	rfcomm_dlc_unlock(dev->dlc);
+
+	if (inserted > 0)
+		tty_flip_buffer_push(tty);
+}
+
+static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	struct rfcomm_dev *dev;
+	struct rfcomm_dlc *dlc;
+	int err, id;
+
+	id = tty->index;
+
+	BT_DBG("tty %p id %d", tty, id);
+
+	/* We don't leak this refcount. For reasons which are not entirely
+	   clear, the TTY layer will call our ->close() method even if the
+	   open fails. We decrease the refcount there, and decreasing it
+	   here too would cause breakage. */
+	dev = rfcomm_dev_get(id);
+	if (!dev)
+		return -ENODEV;
+
+	BT_DBG("dev %p dst %s channel %d opened %d", dev, batostr(&dev->dst),
+				dev->channel, atomic_read(&dev->opened));
+
+	if (atomic_inc_return(&dev->opened) > 1)
+		return 0;
+
+	dlc = dev->dlc;
+
+	/* Attach TTY and open DLC */
+
+	rfcomm_dlc_lock(dlc);
+	tty->driver_data = dev;
+	dev->tty = tty;
+	rfcomm_dlc_unlock(dlc);
+	set_bit(RFCOMM_TTY_ATTACHED, &dev->flags);
+
+	err = rfcomm_dlc_open(dlc, &dev->src, &dev->dst, dev->channel);
+	if (err < 0)
+		return err;
+
+	/* Wait for DLC to connect */
+	add_wait_queue(&dev->wait, &wait);
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (dlc->state == BT_CLOSED) {
+			err = -dev->err;
+			break;
+		}
+
+		if (dlc->state == BT_CONNECTED)
+			break;
+
+		if (signal_pending(current)) {
+			err = -EINTR;
+			break;
+		}
+
+		tty_unlock();
+		schedule();
+		tty_lock();
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&dev->wait, &wait);
+
+	if (err == 0)
+		device_move(dev->tty_dev, rfcomm_get_device(dev),
+			    DPM_ORDER_DEV_AFTER_PARENT);
+
+	rfcomm_tty_copy_pending(dev);
+
+	rfcomm_dlc_unthrottle(dev->dlc);
+
+	return err;
+}
+
+static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+	if (!dev)
+		return;
+
+	BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc,
+						atomic_read(&dev->opened));
+
+	if (atomic_dec_and_test(&dev->opened)) {
+		if (dev->tty_dev->parent)
+			device_move(dev->tty_dev, NULL, DPM_ORDER_DEV_LAST);
+
+		/* Close DLC and dettach TTY */
+		rfcomm_dlc_close(dev->dlc, 0);
+
+		clear_bit(RFCOMM_TTY_ATTACHED, &dev->flags);
+		cancel_work_sync(&dev->wakeup_task);
+
+		rfcomm_dlc_lock(dev->dlc);
+		tty->driver_data = NULL;
+		dev->tty = NULL;
+		rfcomm_dlc_unlock(dev->dlc);
+
+		if (test_bit(RFCOMM_TTY_RELEASED, &dev->flags)) {
+			spin_lock(&rfcomm_dev_lock);
+			list_del_init(&dev->list);
+			spin_unlock(&rfcomm_dev_lock);
+
+			rfcomm_dev_put(dev);
+		}
+	}
+
+	rfcomm_dev_put(dev);
+}
+
+static int rfcomm_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+	struct rfcomm_dlc *dlc = dev->dlc;
+	struct sk_buff *skb;
+	int err = 0, sent = 0, size;
+
+	BT_DBG("tty %p count %d", tty, count);
+
+	while (count) {
+		size = min_t(uint, count, dlc->mtu);
+
+		skb = rfcomm_wmalloc(dev, size + RFCOMM_SKB_RESERVE, GFP_ATOMIC);
+
+		if (!skb)
+			break;
+
+		skb_reserve(skb, RFCOMM_SKB_HEAD_RESERVE);
+
+		memcpy(skb_put(skb, size), buf + sent, size);
+
+		err = rfcomm_dlc_send(dlc, skb);
+		if (err < 0) {
+			kfree_skb(skb);
+			break;
+		}
+
+		sent  += size;
+		count -= size;
+	}
+
+	return sent ? sent : err;
+}
+
+static int rfcomm_tty_write_room(struct tty_struct *tty)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+	int room;
+
+	BT_DBG("tty %p", tty);
+
+	if (!dev || !dev->dlc)
+		return 0;
+
+	room = rfcomm_room(dev->dlc) - atomic_read(&dev->wmem_alloc);
+	if (room < 0)
+		room = 0;
+
+	return room;
+}
+
+static int rfcomm_tty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
+{
+	BT_DBG("tty %p cmd 0x%02x", tty, cmd);
+
+	switch (cmd) {
+	case TCGETS:
+		BT_DBG("TCGETS is not supported");
+		return -ENOIOCTLCMD;
+
+	case TCSETS:
+		BT_DBG("TCSETS is not supported");
+		return -ENOIOCTLCMD;
+
+	case TIOCMIWAIT:
+		BT_DBG("TIOCMIWAIT");
+		break;
+
+	case TIOCGSERIAL:
+		BT_ERR("TIOCGSERIAL is not supported");
+		return -ENOIOCTLCMD;
+
+	case TIOCSSERIAL:
+		BT_ERR("TIOCSSERIAL is not supported");
+		return -ENOIOCTLCMD;
+
+	case TIOCSERGSTRUCT:
+		BT_ERR("TIOCSERGSTRUCT is not supported");
+		return -ENOIOCTLCMD;
+
+	case TIOCSERGETLSR:
+		BT_ERR("TIOCSERGETLSR is not supported");
+		return -ENOIOCTLCMD;
+
+	case TIOCSERCONFIG:
+		BT_ERR("TIOCSERCONFIG is not supported");
+		return -ENOIOCTLCMD;
+
+	default:
+		return -ENOIOCTLCMD;	/* ioctls which we must ignore */
+
+	}
+
+	return -ENOIOCTLCMD;
+}
+
+static void rfcomm_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
+{
+	struct ktermios *new = tty->termios;
+	int old_baud_rate = tty_termios_baud_rate(old);
+	int new_baud_rate = tty_termios_baud_rate(new);
+
+	u8 baud, data_bits, stop_bits, parity, x_on, x_off;
+	u16 changes = 0;
+
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+
+	BT_DBG("tty %p termios %p", tty, old);
+
+	if (!dev || !dev->dlc || !dev->dlc->session)
+		return;
+
+	/* Handle turning off CRTSCTS */
+	if ((old->c_cflag & CRTSCTS) && !(new->c_cflag & CRTSCTS))
+		BT_DBG("Turning off CRTSCTS unsupported");
+
+	/* Parity on/off and when on, odd/even */
+	if (((old->c_cflag & PARENB) != (new->c_cflag & PARENB)) ||
+			((old->c_cflag & PARODD) != (new->c_cflag & PARODD))) {
+		changes |= RFCOMM_RPN_PM_PARITY;
+		BT_DBG("Parity change detected.");
+	}
+
+	/* Mark and space parity are not supported! */
+	if (new->c_cflag & PARENB) {
+		if (new->c_cflag & PARODD) {
+			BT_DBG("Parity is ODD");
+			parity = RFCOMM_RPN_PARITY_ODD;
+		} else {
+			BT_DBG("Parity is EVEN");
+			parity = RFCOMM_RPN_PARITY_EVEN;
+		}
+	} else {
+		BT_DBG("Parity is OFF");
+		parity = RFCOMM_RPN_PARITY_NONE;
+	}
+
+	/* Setting the x_on / x_off characters */
+	if (old->c_cc[VSTOP] != new->c_cc[VSTOP]) {
+		BT_DBG("XOFF custom");
+		x_on = new->c_cc[VSTOP];
+		changes |= RFCOMM_RPN_PM_XON;
+	} else {
+		BT_DBG("XOFF default");
+		x_on = RFCOMM_RPN_XON_CHAR;
+	}
+
+	if (old->c_cc[VSTART] != new->c_cc[VSTART]) {
+		BT_DBG("XON custom");
+		x_off = new->c_cc[VSTART];
+		changes |= RFCOMM_RPN_PM_XOFF;
+	} else {
+		BT_DBG("XON default");
+		x_off = RFCOMM_RPN_XOFF_CHAR;
+	}
+
+	/* Handle setting of stop bits */
+	if ((old->c_cflag & CSTOPB) != (new->c_cflag & CSTOPB))
+		changes |= RFCOMM_RPN_PM_STOP;
+
+	/* POSIX does not support 1.5 stop bits and RFCOMM does not
+	 * support 2 stop bits. So a request for 2 stop bits gets
+	 * translated to 1.5 stop bits */
+	if (new->c_cflag & CSTOPB)
+		stop_bits = RFCOMM_RPN_STOP_15;
+	else
+		stop_bits = RFCOMM_RPN_STOP_1;
+
+	/* Handle number of data bits [5-8] */
+	if ((old->c_cflag & CSIZE) != (new->c_cflag & CSIZE))
+		changes |= RFCOMM_RPN_PM_DATA;
+
+	switch (new->c_cflag & CSIZE) {
+	case CS5:
+		data_bits = RFCOMM_RPN_DATA_5;
+		break;
+	case CS6:
+		data_bits = RFCOMM_RPN_DATA_6;
+		break;
+	case CS7:
+		data_bits = RFCOMM_RPN_DATA_7;
+		break;
+	case CS8:
+		data_bits = RFCOMM_RPN_DATA_8;
+		break;
+	default:
+		data_bits = RFCOMM_RPN_DATA_8;
+		break;
+	}
+
+	/* Handle baudrate settings */
+	if (old_baud_rate != new_baud_rate)
+		changes |= RFCOMM_RPN_PM_BITRATE;
+
+	switch (new_baud_rate) {
+	case 2400:
+		baud = RFCOMM_RPN_BR_2400;
+		break;
+	case 4800:
+		baud = RFCOMM_RPN_BR_4800;
+		break;
+	case 7200:
+		baud = RFCOMM_RPN_BR_7200;
+		break;
+	case 9600:
+		baud = RFCOMM_RPN_BR_9600;
+		break;
+	case 19200:
+		baud = RFCOMM_RPN_BR_19200;
+		break;
+	case 38400:
+		baud = RFCOMM_RPN_BR_38400;
+		break;
+	case 57600:
+		baud = RFCOMM_RPN_BR_57600;
+		break;
+	case 115200:
+		baud = RFCOMM_RPN_BR_115200;
+		break;
+	case 230400:
+		baud = RFCOMM_RPN_BR_230400;
+		break;
+	default:
+		/* 9600 is standard accordinag to the RFCOMM specification */
+		baud = RFCOMM_RPN_BR_9600;
+		break;
+
+	}
+
+	if (changes)
+		rfcomm_send_rpn(dev->dlc->session, 1, dev->dlc->dlci, baud,
+				data_bits, stop_bits, parity,
+				RFCOMM_RPN_FLOW_NONE, x_on, x_off, changes);
+}
+
+static void rfcomm_tty_throttle(struct tty_struct *tty)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+
+	BT_DBG("tty %p dev %p", tty, dev);
+
+	rfcomm_dlc_throttle(dev->dlc);
+}
+
+static void rfcomm_tty_unthrottle(struct tty_struct *tty)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+
+	BT_DBG("tty %p dev %p", tty, dev);
+
+	rfcomm_dlc_unthrottle(dev->dlc);
+}
+
+static int rfcomm_tty_chars_in_buffer(struct tty_struct *tty)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+
+	BT_DBG("tty %p dev %p", tty, dev);
+
+	if (!dev || !dev->dlc)
+		return 0;
+
+	if (!skb_queue_empty(&dev->dlc->tx_queue))
+		return dev->dlc->mtu;
+
+	return 0;
+}
+
+static void rfcomm_tty_flush_buffer(struct tty_struct *tty)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+
+	BT_DBG("tty %p dev %p", tty, dev);
+
+	if (!dev || !dev->dlc)
+		return;
+
+	skb_queue_purge(&dev->dlc->tx_queue);
+	tty_wakeup(tty);
+}
+
+static void rfcomm_tty_send_xchar(struct tty_struct *tty, char ch)
+{
+	BT_DBG("tty %p ch %c", tty, ch);
+}
+
+static void rfcomm_tty_wait_until_sent(struct tty_struct *tty, int timeout)
+{
+	BT_DBG("tty %p timeout %d", tty, timeout);
+}
+
+static void rfcomm_tty_hangup(struct tty_struct *tty)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+
+	BT_DBG("tty %p dev %p", tty, dev);
+
+	if (!dev)
+		return;
+
+	rfcomm_tty_flush_buffer(tty);
+
+	if (test_bit(RFCOMM_RELEASE_ONHUP, &dev->flags)) {
+		if (rfcomm_dev_get(dev->id) == NULL)
+			return;
+		rfcomm_dev_del(dev);
+		rfcomm_dev_put(dev);
+	}
+}
+
+static int rfcomm_tty_tiocmget(struct tty_struct *tty)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+
+	BT_DBG("tty %p dev %p", tty, dev);
+
+	return dev->modem_status;
+}
+
+static int rfcomm_tty_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear)
+{
+	struct rfcomm_dev *dev = (struct rfcomm_dev *) tty->driver_data;
+	struct rfcomm_dlc *dlc = dev->dlc;
+	u8 v24_sig;
+
+	BT_DBG("tty %p dev %p set 0x%02x clear 0x%02x", tty, dev, set, clear);
+
+	rfcomm_dlc_get_modem_status(dlc, &v24_sig);
+
+	if (set & TIOCM_DSR || set & TIOCM_DTR)
+		v24_sig |= RFCOMM_V24_RTC;
+	if (set & TIOCM_RTS || set & TIOCM_CTS)
+		v24_sig |= RFCOMM_V24_RTR;
+	if (set & TIOCM_RI)
+		v24_sig |= RFCOMM_V24_IC;
+	if (set & TIOCM_CD)
+		v24_sig |= RFCOMM_V24_DV;
+
+	if (clear & TIOCM_DSR || clear & TIOCM_DTR)
+		v24_sig &= ~RFCOMM_V24_RTC;
+	if (clear & TIOCM_RTS || clear & TIOCM_CTS)
+		v24_sig &= ~RFCOMM_V24_RTR;
+	if (clear & TIOCM_RI)
+		v24_sig &= ~RFCOMM_V24_IC;
+	if (clear & TIOCM_CD)
+		v24_sig &= ~RFCOMM_V24_DV;
+
+	rfcomm_dlc_set_modem_status(dlc, v24_sig);
+
+	return 0;
+}
+
+/* ---- TTY structure ---- */
+
+static const struct tty_operations rfcomm_ops = {
+	.open			= rfcomm_tty_open,
+	.close			= rfcomm_tty_close,
+	.write			= rfcomm_tty_write,
+	.write_room		= rfcomm_tty_write_room,
+	.chars_in_buffer	= rfcomm_tty_chars_in_buffer,
+	.flush_buffer		= rfcomm_tty_flush_buffer,
+	.ioctl			= rfcomm_tty_ioctl,
+	.throttle		= rfcomm_tty_throttle,
+	.unthrottle		= rfcomm_tty_unthrottle,
+	.set_termios		= rfcomm_tty_set_termios,
+	.send_xchar		= rfcomm_tty_send_xchar,
+	.hangup			= rfcomm_tty_hangup,
+	.wait_until_sent	= rfcomm_tty_wait_until_sent,
+	.tiocmget		= rfcomm_tty_tiocmget,
+	.tiocmset		= rfcomm_tty_tiocmset,
+};
+
+int __init rfcomm_init_ttys(void)
+{
+	int error;
+
+	rfcomm_tty_driver = alloc_tty_driver(RFCOMM_TTY_PORTS);
+	if (!rfcomm_tty_driver)
+		return -ENOMEM;
+
+	rfcomm_tty_driver->driver_name	= "rfcomm";
+	rfcomm_tty_driver->name		= "rfcomm";
+	rfcomm_tty_driver->major	= RFCOMM_TTY_MAJOR;
+	rfcomm_tty_driver->minor_start	= RFCOMM_TTY_MINOR;
+	rfcomm_tty_driver->type		= TTY_DRIVER_TYPE_SERIAL;
+	rfcomm_tty_driver->subtype	= SERIAL_TYPE_NORMAL;
+	rfcomm_tty_driver->flags	= TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+	rfcomm_tty_driver->init_termios	= tty_std_termios;
+	rfcomm_tty_driver->init_termios.c_cflag	= B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+	rfcomm_tty_driver->init_termios.c_lflag &= ~ICANON;
+	tty_set_operations(rfcomm_tty_driver, &rfcomm_ops);
+
+	error = tty_register_driver(rfcomm_tty_driver);
+	if (error) {
+		BT_ERR("Can't register RFCOMM TTY driver");
+		put_tty_driver(rfcomm_tty_driver);
+		return error;
+	}
+
+	BT_INFO("RFCOMM TTY layer initialized");
+
+	return 0;
+}
+
+void rfcomm_cleanup_ttys(void)
+{
+	tty_unregister_driver(rfcomm_tty_driver);
+	put_tty_driver(rfcomm_tty_driver);
+}
diff --git a/net/bluetooth_tizen/sco.c b/net/bluetooth_tizen/sco.c
new file mode 100644
index 0000000..8bf26d1
--- /dev/null
+++ b/net/bluetooth_tizen/sco.c
@@ -0,0 +1,1061 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Bluetooth SCO sockets. */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/socket.h>
+#include <linux/skbuff.h>
+#include <linux/device.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/list.h>
+#include <linux/security.h>
+#include <net/sock.h>
+
+#include <asm/system.h>
+#include <linux/uaccess.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/sco.h>
+
+static bool disable_esco;
+
+static const struct proto_ops sco_sock_ops;
+
+static struct bt_sock_list sco_sk_list = {
+	.lock = __RW_LOCK_UNLOCKED(sco_sk_list.lock)
+};
+
+static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent);
+static void sco_chan_del(struct sock *sk, int err);
+
+static int  sco_conn_del(struct hci_conn *conn, int err);
+
+static void sco_sock_close(struct sock *sk);
+static void sco_sock_kill(struct sock *sk);
+
+/* ---- SCO timers ---- */
+static void sco_sock_timeout(unsigned long arg)
+{
+	struct sock *sk = (struct sock *) arg;
+
+	BT_DBG("sock %p state %d", sk, sk->sk_state);
+
+	bh_lock_sock(sk);
+	sk->sk_err = ETIMEDOUT;
+	sk->sk_state_change(sk);
+	bh_unlock_sock(sk);
+
+	sco_sock_kill(sk);
+	sock_put(sk);
+}
+
+static void sco_sock_set_timer(struct sock *sk, long timeout)
+{
+	BT_DBG("sock %p state %d timeout %ld", sk, sk->sk_state, timeout);
+	sk_reset_timer(sk, &sk->sk_timer, jiffies + timeout);
+}
+
+static void sco_sock_clear_timer(struct sock *sk)
+{
+	BT_DBG("sock %p state %d", sk, sk->sk_state);
+	sk_stop_timer(sk, &sk->sk_timer);
+}
+
+/* ---- SCO connections ---- */
+static struct sco_conn *sco_conn_add(struct hci_conn *hcon, __u8 status)
+{
+	struct hci_dev *hdev = hcon->hdev;
+	struct sco_conn *conn = hcon->sco_data;
+
+	if (conn || status)
+		return conn;
+
+	conn = kzalloc(sizeof(struct sco_conn), GFP_ATOMIC);
+	if (!conn)
+		return NULL;
+
+	spin_lock_init(&conn->lock);
+
+	hcon->sco_data = conn;
+	conn->hcon = hcon;
+
+	conn->src = &hdev->bdaddr;
+	conn->dst = &hcon->dst;
+
+	if (hdev->sco_mtu > 0)
+		conn->mtu = hdev->sco_mtu;
+	else
+		conn->mtu = 60;
+
+	BT_DBG("hcon %p conn %p", hcon, conn);
+
+	return conn;
+}
+
+static inline struct sock *sco_chan_get(struct sco_conn *conn)
+{
+	struct sock *sk = NULL;
+	sco_conn_lock(conn);
+	sk = conn->sk;
+	sco_conn_unlock(conn);
+	return sk;
+}
+
+static int sco_conn_del(struct hci_conn *hcon, int err)
+{
+	struct sco_conn *conn = hcon->sco_data;
+	struct sock *sk;
+
+	if (!conn)
+		return 0;
+
+	BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
+
+	/* Kill socket */
+	sk = sco_chan_get(conn);
+	if (sk) {
+		bh_lock_sock(sk);
+		sco_sock_clear_timer(sk);
+		sco_chan_del(sk, err);
+		bh_unlock_sock(sk);
+		sco_sock_kill(sk);
+	}
+
+	hcon->sco_data = NULL;
+	kfree(conn);
+	return 0;
+}
+
+static inline int sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
+{
+	int err = 0;
+
+	sco_conn_lock(conn);
+	if (conn->sk)
+		err = -EBUSY;
+	else
+		__sco_chan_add(conn, sk, parent);
+
+	sco_conn_unlock(conn);
+	return err;
+}
+
+static int sco_connect(struct sock *sk)
+{
+	bdaddr_t *src = &bt_sk(sk)->src;
+	bdaddr_t *dst = &bt_sk(sk)->dst;
+	struct sco_conn *conn;
+	struct hci_conn *hcon;
+	struct hci_dev  *hdev;
+	int err, type;
+
+	BT_DBG("%s -> %s", batostr(src), batostr(dst));
+
+	hdev = hci_get_route(dst, src);
+	if (!hdev)
+		return -EHOSTUNREACH;
+
+	hci_dev_lock(hdev);
+
+	if (lmp_esco_capable(hdev) && !disable_esco)
+		type = ESCO_LINK;
+	else
+		type = SCO_LINK;
+
+	hcon = hci_connect(hdev, type, dst, BT_SECURITY_LOW, HCI_AT_NO_BONDING);
+	if (IS_ERR(hcon)) {
+		err = PTR_ERR(hcon);
+		goto done;
+	}
+
+	conn = sco_conn_add(hcon, 0);
+	if (!conn) {
+		hci_conn_put(hcon);
+		err = -ENOMEM;
+		goto done;
+	}
+
+	/* Update source addr of the socket */
+	bacpy(src, conn->src);
+
+	err = sco_chan_add(conn, sk, NULL);
+	if (err)
+		goto done;
+
+	if (hcon->state == BT_CONNECTED) {
+		sco_sock_clear_timer(sk);
+		sk->sk_state = BT_CONNECTED;
+	} else {
+		sk->sk_state = BT_CONNECT;
+		sco_sock_set_timer(sk, sk->sk_sndtimeo);
+	}
+
+done:
+	hci_dev_unlock(hdev);
+	hci_dev_put(hdev);
+	return err;
+}
+
+static inline int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
+{
+	struct sco_conn *conn = sco_pi(sk)->conn;
+	struct sk_buff *skb;
+	int err, count;
+
+	/* Check outgoing MTU */
+	if (len > conn->mtu)
+		return -EINVAL;
+
+	BT_DBG("sk %p len %d", sk, len);
+
+	count = min_t(unsigned int, conn->mtu, len);
+	skb = bt_skb_send_alloc(sk, count,
+			msg->msg_flags & MSG_DONTWAIT, &err);
+	if (!skb)
+		return err;
+
+	if (memcpy_fromiovec(skb_put(skb, count), msg->msg_iov, count)) {
+		kfree_skb(skb);
+		return -EFAULT;
+	}
+
+	hci_send_sco(conn->hcon, skb);
+
+	return count;
+}
+
+static inline void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb)
+{
+	struct sock *sk = sco_chan_get(conn);
+
+	if (!sk)
+		goto drop;
+
+	BT_DBG("sk %p len %d", sk, skb->len);
+
+	if (sk->sk_state != BT_CONNECTED)
+		goto drop;
+
+	if (!sock_queue_rcv_skb(sk, skb))
+		return;
+
+drop:
+	kfree_skb(skb);
+}
+
+/* -------- Socket interface ---------- */
+static struct sock *__sco_get_sock_by_addr(bdaddr_t *ba)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+
+	sk_for_each(sk, node, &sco_sk_list.head)
+		if (!bacmp(&bt_sk(sk)->src, ba))
+			goto found;
+	sk = NULL;
+found:
+	return sk;
+}
+
+/* Find socket listening on source bdaddr.
+ * Returns closest match.
+ */
+static struct sock *sco_get_sock_listen(bdaddr_t *src)
+{
+	struct sock *sk = NULL, *sk1 = NULL;
+	struct hlist_node *node;
+
+	read_lock(&sco_sk_list.lock);
+
+	sk_for_each(sk, node, &sco_sk_list.head) {
+		if (sk->sk_state != BT_LISTEN)
+			continue;
+
+		/* Exact match. */
+		if (!bacmp(&bt_sk(sk)->src, src))
+			break;
+
+		/* Closest match */
+		if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY))
+			sk1 = sk;
+	}
+
+	read_unlock(&sco_sk_list.lock);
+
+	return node ? sk : sk1;
+}
+
+static void sco_sock_destruct(struct sock *sk)
+{
+	BT_DBG("sk %p", sk);
+
+	skb_queue_purge(&sk->sk_receive_queue);
+	skb_queue_purge(&sk->sk_write_queue);
+}
+
+static void sco_sock_cleanup_listen(struct sock *parent)
+{
+	struct sock *sk;
+
+	BT_DBG("parent %p", parent);
+
+	/* Close not yet accepted channels */
+	while ((sk = bt_accept_dequeue(parent, NULL))) {
+		sco_sock_close(sk);
+		sco_sock_kill(sk);
+	}
+
+	parent->sk_state  = BT_CLOSED;
+	sock_set_flag(parent, SOCK_ZAPPED);
+}
+
+/* Kill socket (only if zapped and orphan)
+ * Must be called on unlocked socket.
+ */
+static void sco_sock_kill(struct sock *sk)
+{
+	if (!sock_flag(sk, SOCK_ZAPPED) || sk->sk_socket)
+		return;
+
+	BT_DBG("sk %p state %d", sk, sk->sk_state);
+
+	/* Kill poor orphan */
+	bt_sock_unlink(&sco_sk_list, sk);
+	sock_set_flag(sk, SOCK_DEAD);
+	sock_put(sk);
+}
+
+static void __sco_sock_close(struct sock *sk)
+{
+	BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket);
+
+	switch (sk->sk_state) {
+	case BT_LISTEN:
+		sco_sock_cleanup_listen(sk);
+		break;
+
+	case BT_CONNECTED:
+	case BT_CONFIG:
+		if (sco_pi(sk)->conn) {
+			sk->sk_state = BT_DISCONN;
+			sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT);
+			hci_conn_put(sco_pi(sk)->conn->hcon);
+			sco_pi(sk)->conn->hcon = NULL;
+		} else
+			sco_chan_del(sk, ECONNRESET);
+		break;
+
+	case BT_CONNECT:
+	case BT_DISCONN:
+		sco_chan_del(sk, ECONNRESET);
+		break;
+
+	default:
+		sock_set_flag(sk, SOCK_ZAPPED);
+		break;
+	}
+}
+
+/* Must be called on unlocked socket. */
+static void sco_sock_close(struct sock *sk)
+{
+	sco_sock_clear_timer(sk);
+	lock_sock(sk);
+	__sco_sock_close(sk);
+	release_sock(sk);
+	sco_sock_kill(sk);
+}
+
+static void sco_sock_init(struct sock *sk, struct sock *parent)
+{
+	BT_DBG("sk %p", sk);
+
+	if (parent) {
+		sk->sk_type = parent->sk_type;
+		security_sk_clone(parent, sk);
+	}
+}
+
+static struct proto sco_proto = {
+	.name		= "SCO",
+	.owner		= THIS_MODULE,
+	.obj_size	= sizeof(struct sco_pinfo)
+};
+
+static struct sock *sco_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
+{
+	struct sock *sk;
+
+	sk = sk_alloc(net, PF_BLUETOOTH, prio, &sco_proto);
+	if (!sk)
+		return NULL;
+
+	sock_init_data(sock, sk);
+	INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
+
+	sk->sk_destruct = sco_sock_destruct;
+	sk->sk_sndtimeo = SCO_CONN_TIMEOUT;
+
+	sock_reset_flag(sk, SOCK_ZAPPED);
+
+	sk->sk_protocol = proto;
+	sk->sk_state    = BT_OPEN;
+
+	setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk);
+
+	bt_sock_link(&sco_sk_list, sk);
+	return sk;
+}
+
+static int sco_sock_create(struct net *net, struct socket *sock, int protocol,
+			   int kern)
+{
+	struct sock *sk;
+
+	BT_DBG("sock %p", sock);
+
+	sock->state = SS_UNCONNECTED;
+
+	if (sock->type != SOCK_SEQPACKET)
+		return -ESOCKTNOSUPPORT;
+
+	sock->ops = &sco_sock_ops;
+
+	sk = sco_sock_alloc(net, sock, protocol, GFP_ATOMIC);
+	if (!sk)
+		return -ENOMEM;
+
+	sco_sock_init(sk, NULL);
+	return 0;
+}
+
+static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
+{
+	struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
+	struct sock *sk = sock->sk;
+	bdaddr_t *src = &sa->sco_bdaddr;
+	int err = 0;
+
+	BT_DBG("sk %p %s", sk, batostr(&sa->sco_bdaddr));
+
+	if (!addr || addr->sa_family != AF_BLUETOOTH)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	if (sk->sk_state != BT_OPEN) {
+		err = -EBADFD;
+		goto done;
+	}
+
+	write_lock(&sco_sk_list.lock);
+
+	if (bacmp(src, BDADDR_ANY) && __sco_get_sock_by_addr(src)) {
+		err = -EADDRINUSE;
+	} else {
+		/* Save source address */
+		bacpy(&bt_sk(sk)->src, &sa->sco_bdaddr);
+		sk->sk_state = BT_BOUND;
+	}
+
+	write_unlock(&sco_sk_list.lock);
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen, int flags)
+{
+	struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
+	struct sock *sk = sock->sk;
+	int err = 0;
+
+
+	BT_DBG("sk %p", sk);
+
+	if (alen < sizeof(struct sockaddr_sco) ||
+	    addr->sa_family != AF_BLUETOOTH)
+		return -EINVAL;
+
+	if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND)
+		return -EBADFD;
+
+	if (sk->sk_type != SOCK_SEQPACKET)
+		return -EINVAL;
+
+	lock_sock(sk);
+
+	/* Set destination address and psm */
+	bacpy(&bt_sk(sk)->dst, &sa->sco_bdaddr);
+
+	err = sco_connect(sk);
+	if (err)
+		goto done;
+
+	err = bt_sock_wait_state(sk, BT_CONNECTED,
+			sock_sndtimeo(sk, flags & O_NONBLOCK));
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int sco_sock_listen(struct socket *sock, int backlog)
+{
+	struct sock *sk = sock->sk;
+	int err = 0;
+
+	BT_DBG("sk %p backlog %d", sk, backlog);
+
+	lock_sock(sk);
+
+	if (sk->sk_state != BT_BOUND || sock->type != SOCK_SEQPACKET) {
+		err = -EBADFD;
+		goto done;
+	}
+
+	sk->sk_max_ack_backlog = backlog;
+	sk->sk_ack_backlog = 0;
+	sk->sk_state = BT_LISTEN;
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flags)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	struct sock *sk = sock->sk, *ch;
+	long timeo;
+	int err = 0;
+
+	lock_sock(sk);
+
+	timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
+
+	BT_DBG("sk %p timeo %ld", sk, timeo);
+
+	/* Wait for an incoming connection. (wake-one). */
+	add_wait_queue_exclusive(sk_sleep(sk), &wait);
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (sk->sk_state != BT_LISTEN) {
+			err = -EBADFD;
+			break;
+		}
+
+		ch = bt_accept_dequeue(sk, newsock);
+		if (ch)
+			break;
+
+		if (!timeo) {
+			err = -EAGAIN;
+			break;
+		}
+
+		if (signal_pending(current)) {
+			err = sock_intr_errno(timeo);
+			break;
+		}
+
+		release_sock(sk);
+		timeo = schedule_timeout(timeo);
+		lock_sock(sk);
+	}
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+
+	if (err)
+		goto done;
+
+	newsock->state = SS_CONNECTED;
+
+	BT_DBG("new socket %p", ch);
+
+done:
+	release_sock(sk);
+	return err;
+}
+
+static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len, int peer)
+{
+	struct sockaddr_sco *sa = (struct sockaddr_sco *) addr;
+	struct sock *sk = sock->sk;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	addr->sa_family = AF_BLUETOOTH;
+	*len = sizeof(struct sockaddr_sco);
+
+	if (peer)
+		bacpy(&sa->sco_bdaddr, &bt_sk(sk)->dst);
+	else
+		bacpy(&sa->sco_bdaddr, &bt_sk(sk)->src);
+
+	return 0;
+}
+
+static int sco_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
+			    struct msghdr *msg, size_t len)
+{
+	struct sock *sk = sock->sk;
+	int err;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	err = sock_error(sk);
+	if (err)
+		return err;
+
+	if (msg->msg_flags & MSG_OOB)
+		return -EOPNOTSUPP;
+
+	lock_sock(sk);
+
+	if (sk->sk_state == BT_CONNECTED)
+		err = sco_send_frame(sk, msg, len);
+	else
+		err = -ENOTCONN;
+
+	release_sock(sk);
+	return err;
+}
+
+static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
+{
+	struct sock *sk = sock->sk;
+	int err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	lock_sock(sk);
+
+	switch (optname) {
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
+{
+	struct sock *sk = sock->sk;
+	struct sco_options opts;
+	struct sco_conninfo cinfo;
+	int len, err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	lock_sock(sk);
+
+	switch (optname) {
+	case SCO_OPTIONS:
+		if (sk->sk_state != BT_CONNECTED) {
+			err = -ENOTCONN;
+			break;
+		}
+
+		opts.mtu = sco_pi(sk)->conn->mtu;
+
+		BT_DBG("mtu %d", opts.mtu);
+
+		len = min_t(unsigned int, len, sizeof(opts));
+		if (copy_to_user(optval, (char *)&opts, len))
+			err = -EFAULT;
+
+		break;
+
+	case SCO_CONNINFO:
+		if (sk->sk_state != BT_CONNECTED) {
+			err = -ENOTCONN;
+			break;
+		}
+
+		memset(&cinfo, 0, sizeof(cinfo));
+		cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle;
+		memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3);
+
+		len = min_t(unsigned int, len, sizeof(cinfo));
+		if (copy_to_user(optval, (char *)&cinfo, len))
+			err = -EFAULT;
+
+		break;
+
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int sco_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+{
+	struct sock *sk = sock->sk;
+	int len, err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	if (level == SOL_SCO)
+		return sco_sock_getsockopt_old(sock, optname, optval, optlen);
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	lock_sock(sk);
+
+	switch (optname) {
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int sco_sock_shutdown(struct socket *sock, int how)
+{
+	struct sock *sk = sock->sk;
+	int err = 0;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	lock_sock(sk);
+	if (!sk->sk_shutdown) {
+		sk->sk_shutdown = SHUTDOWN_MASK;
+		sco_sock_clear_timer(sk);
+		__sco_sock_close(sk);
+
+		if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime)
+			err = bt_sock_wait_state(sk, BT_CLOSED,
+							sk->sk_lingertime);
+	}
+	release_sock(sk);
+	return err;
+}
+
+static int sco_sock_release(struct socket *sock)
+{
+	struct sock *sk = sock->sk;
+	int err = 0;
+
+	BT_DBG("sock %p, sk %p", sock, sk);
+
+	if (!sk)
+		return 0;
+
+	sco_sock_close(sk);
+
+	if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) {
+		lock_sock(sk);
+		err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime);
+		release_sock(sk);
+	}
+
+	sock_orphan(sk);
+	sco_sock_kill(sk);
+	return err;
+}
+
+static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent)
+{
+	BT_DBG("conn %p", conn);
+
+	sco_pi(sk)->conn = conn;
+	conn->sk = sk;
+
+	if (parent)
+		bt_accept_enqueue(parent, sk);
+}
+
+/* Delete channel.
+ * Must be called on the locked socket. */
+static void sco_chan_del(struct sock *sk, int err)
+{
+	struct sco_conn *conn;
+
+	conn = sco_pi(sk)->conn;
+
+	BT_DBG("sk %p, conn %p, err %d", sk, conn, err);
+
+	if (conn) {
+		sco_conn_lock(conn);
+		conn->sk = NULL;
+		sco_pi(sk)->conn = NULL;
+		sco_conn_unlock(conn);
+
+		if (conn->hcon)
+			hci_conn_put(conn->hcon);
+	}
+
+	sk->sk_state = BT_CLOSED;
+	sk->sk_err   = err;
+	sk->sk_state_change(sk);
+
+	sock_set_flag(sk, SOCK_ZAPPED);
+}
+
+static void sco_conn_ready(struct sco_conn *conn)
+{
+	struct sock *parent;
+	struct sock *sk = conn->sk;
+
+	BT_DBG("conn %p", conn);
+
+	sco_conn_lock(conn);
+
+	if (sk) {
+		sco_sock_clear_timer(sk);
+		bh_lock_sock(sk);
+		sk->sk_state = BT_CONNECTED;
+		sk->sk_state_change(sk);
+		bh_unlock_sock(sk);
+	} else {
+		parent = sco_get_sock_listen(conn->src);
+		if (!parent)
+			goto done;
+
+		bh_lock_sock(parent);
+
+		sk = sco_sock_alloc(sock_net(parent), NULL,
+				BTPROTO_SCO, GFP_ATOMIC);
+		if (!sk) {
+			bh_unlock_sock(parent);
+			goto done;
+		}
+
+		sco_sock_init(sk, parent);
+
+		bacpy(&bt_sk(sk)->src, conn->src);
+		bacpy(&bt_sk(sk)->dst, conn->dst);
+
+		hci_conn_hold(conn->hcon);
+		__sco_chan_add(conn, sk, parent);
+
+		sk->sk_state = BT_CONNECTED;
+
+		/* Wake up parent */
+		parent->sk_data_ready(parent, 1);
+
+		bh_unlock_sock(parent);
+	}
+
+done:
+	sco_conn_unlock(conn);
+}
+
+/* ----- SCO interface with lower layer (HCI) ----- */
+int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
+{
+	register struct sock *sk;
+	struct hlist_node *node;
+	int lm = 0;
+
+	BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr));
+
+	/* Find listening sockets */
+	read_lock(&sco_sk_list.lock);
+	sk_for_each(sk, node, &sco_sk_list.head) {
+		if (sk->sk_state != BT_LISTEN)
+			continue;
+
+		if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) ||
+				!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+			lm |= HCI_LM_ACCEPT;
+			break;
+		}
+	}
+	read_unlock(&sco_sk_list.lock);
+
+	return lm;
+}
+
+int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
+{
+	BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
+	if (!status) {
+		struct sco_conn *conn;
+
+		conn = sco_conn_add(hcon, status);
+		if (conn)
+			sco_conn_ready(conn);
+	} else
+		sco_conn_del(hcon, bt_to_errno(status));
+
+	return 0;
+}
+
+int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason)
+{
+	BT_DBG("hcon %p reason %d", hcon, reason);
+
+	sco_conn_del(hcon, bt_to_errno(reason));
+	return 0;
+}
+
+int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
+{
+	struct sco_conn *conn = hcon->sco_data;
+
+	if (!conn)
+		goto drop;
+
+	BT_DBG("conn %p len %d", conn, skb->len);
+
+	if (skb->len) {
+		sco_recv_frame(conn, skb);
+		return 0;
+	}
+
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
+static int sco_debugfs_show(struct seq_file *f, void *p)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+
+	read_lock(&sco_sk_list.lock);
+
+	sk_for_each(sk, node, &sco_sk_list.head) {
+		seq_printf(f, "%s %s %d\n", batostr(&bt_sk(sk)->src),
+				batostr(&bt_sk(sk)->dst), sk->sk_state);
+	}
+
+	read_unlock(&sco_sk_list.lock);
+
+	return 0;
+}
+
+static int sco_debugfs_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, sco_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations sco_debugfs_fops = {
+	.open		= sco_debugfs_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static struct dentry *sco_debugfs;
+
+static const struct proto_ops sco_sock_ops = {
+	.family		= PF_BLUETOOTH,
+	.owner		= THIS_MODULE,
+	.release	= sco_sock_release,
+	.bind		= sco_sock_bind,
+	.connect	= sco_sock_connect,
+	.listen		= sco_sock_listen,
+	.accept		= sco_sock_accept,
+	.getname	= sco_sock_getname,
+	.sendmsg	= sco_sock_sendmsg,
+	.recvmsg	= bt_sock_recvmsg,
+	.poll		= bt_sock_poll,
+	.ioctl		= bt_sock_ioctl,
+	.mmap		= sock_no_mmap,
+	.socketpair	= sock_no_socketpair,
+	.shutdown	= sco_sock_shutdown,
+	.setsockopt	= sco_sock_setsockopt,
+	.getsockopt	= sco_sock_getsockopt
+};
+
+static const struct net_proto_family sco_sock_family_ops = {
+	.family	= PF_BLUETOOTH,
+	.owner	= THIS_MODULE,
+	.create	= sco_sock_create,
+};
+
+int __init sco_init(void)
+{
+	int err;
+
+	err = proto_register(&sco_proto, 0);
+	if (err < 0)
+		return err;
+
+	err = bt_sock_register(BTPROTO_SCO, &sco_sock_family_ops);
+	if (err < 0) {
+		BT_ERR("SCO socket registration failed");
+		goto error;
+	}
+
+	if (bt_debugfs) {
+		sco_debugfs = debugfs_create_file("sco", 0444,
+					bt_debugfs, NULL, &sco_debugfs_fops);
+		if (!sco_debugfs)
+			BT_ERR("Failed to create SCO debug file");
+	}
+
+	BT_INFO("SCO socket layer initialized");
+
+	return 0;
+
+error:
+	proto_unregister(&sco_proto);
+	return err;
+}
+
+void __exit sco_exit(void)
+{
+	debugfs_remove(sco_debugfs);
+
+	if (bt_sock_unregister(BTPROTO_SCO) < 0)
+		BT_ERR("SCO socket unregistration failed");
+
+	proto_unregister(&sco_proto);
+}
+
+module_param(disable_esco, bool, 0644);
+MODULE_PARM_DESC(disable_esco, "Disable eSCO connection creation");
diff --git a/net/bluetooth_tizen/smp.c b/net/bluetooth_tizen/smp.c
new file mode 100644
index 0000000..deb1198
--- /dev/null
+++ b/net/bluetooth_tizen/smp.c
@@ -0,0 +1,1003 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/l2cap.h>
+#include <net/bluetooth/mgmt.h>
+#include <net/bluetooth/smp.h>
+#include <linux/crypto.h>
+#include <linux/scatterlist.h>
+#include <crypto/b128ops.h>
+
+#define SMP_TIMEOUT	msecs_to_jiffies(30000)
+
+static inline void swap128(u8 src[16], u8 dst[16])
+{
+	int i;
+	for (i = 0; i < 16; i++)
+		dst[15 - i] = src[i];
+}
+
+static inline void swap56(u8 src[7], u8 dst[7])
+{
+	int i;
+	for (i = 0; i < 7; i++)
+		dst[6 - i] = src[i];
+}
+
+static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
+{
+	struct blkcipher_desc desc;
+	struct scatterlist sg;
+	int err, iv_len;
+	unsigned char iv[128];
+
+	if (tfm == NULL) {
+		BT_ERR("tfm %p", tfm);
+		return -EINVAL;
+	}
+
+	desc.tfm = tfm;
+	desc.flags = 0;
+
+	err = crypto_blkcipher_setkey(tfm, k, 16);
+	if (err) {
+		BT_ERR("cipher setkey failed: %d", err);
+		return err;
+	}
+
+	sg_init_one(&sg, r, 16);
+
+	iv_len = crypto_blkcipher_ivsize(tfm);
+	if (iv_len) {
+		memset(&iv, 0xff, iv_len);
+		crypto_blkcipher_set_iv(tfm, iv, iv_len);
+	}
+
+	err = crypto_blkcipher_encrypt(&desc, &sg, &sg, 16);
+	if (err)
+		BT_ERR("Encrypt data error %d", err);
+
+	return err;
+}
+
+static int smp_c1(struct crypto_blkcipher *tfm, u8 k[16], u8 r[16],
+		u8 preq[7], u8 pres[7], u8 _iat, bdaddr_t *ia,
+		u8 _rat, bdaddr_t *ra, u8 res[16])
+{
+	u8 p1[16], p2[16];
+	int err;
+
+	memset(p1, 0, 16);
+
+	/* p1 = pres || preq || _rat || _iat */
+	swap56(pres, p1);
+	swap56(preq, p1 + 7);
+	p1[14] = _rat;
+	p1[15] = _iat;
+
+	memset(p2, 0, 16);
+
+	/* p2 = padding || ia || ra */
+	baswap((bdaddr_t *) (p2 + 4), ia);
+	baswap((bdaddr_t *) (p2 + 10), ra);
+
+	/* res = r XOR p1 */
+	u128_xor((u128 *) res, (u128 *) r, (u128 *) p1);
+
+	/* res = e(k, res) */
+	err = smp_e(tfm, k, res);
+	if (err) {
+		BT_ERR("Encrypt data error");
+		return err;
+	}
+
+	/* res = res XOR p2 */
+	u128_xor((u128 *) res, (u128 *) res, (u128 *) p2);
+
+	/* res = e(k, res) */
+	err = smp_e(tfm, k, res);
+	if (err)
+		BT_ERR("Encrypt data error");
+
+	return err;
+}
+
+static int smp_s1(struct crypto_blkcipher *tfm, u8 k[16],
+			u8 r1[16], u8 r2[16], u8 _r[16])
+{
+	int err;
+
+	/* Just least significant octets from r1 and r2 are considered */
+	memcpy(_r, r1 + 8, 8);
+	memcpy(_r + 8, r2 + 8, 8);
+
+	err = smp_e(tfm, k, _r);
+	if (err)
+		BT_ERR("Encrypt data error");
+
+	return err;
+}
+
+static int smp_rand(u8 *buf)
+{
+	get_random_bytes(buf, 16);
+
+	return 0;
+}
+
+static struct sk_buff *smp_build_cmd(struct l2cap_conn *conn, u8 code,
+						u16 dlen, void *data)
+{
+	struct sk_buff *skb;
+	struct l2cap_hdr *lh;
+	int len;
+
+	len = L2CAP_HDR_SIZE + sizeof(code) + dlen;
+
+	if (len > conn->mtu)
+		return NULL;
+
+	skb = bt_skb_alloc(len, GFP_ATOMIC);
+	if (!skb)
+		return NULL;
+
+	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
+	lh->len = cpu_to_le16(sizeof(code) + dlen);
+	lh->cid = cpu_to_le16(L2CAP_CID_SMP);
+
+	memcpy(skb_put(skb, sizeof(code)), &code, sizeof(code));
+
+	memcpy(skb_put(skb, dlen), data, dlen);
+
+	return skb;
+}
+
+static void smp_send_cmd(struct l2cap_conn *conn, u8 code, u16 len, void *data)
+{
+	struct sk_buff *skb = smp_build_cmd(conn, code, len, data);
+
+	BT_DBG("code 0x%2.2x", code);
+
+	if (!skb)
+		return;
+
+	skb->priority = HCI_PRIO_MAX;
+	hci_send_acl(conn->hchan, skb, 0);
+
+	cancel_delayed_work_sync(&conn->security_timer);
+	schedule_delayed_work(&conn->security_timer, SMP_TIMEOUT);
+}
+
+static __u8 authreq_to_seclevel(__u8 authreq)
+{
+	if (authreq & SMP_AUTH_MITM)
+		return BT_SECURITY_HIGH;
+	else
+		return BT_SECURITY_MEDIUM;
+}
+
+static __u8 seclevel_to_authreq(__u8 sec_level)
+{
+	switch (sec_level) {
+	case BT_SECURITY_HIGH:
+		return SMP_AUTH_MITM | SMP_AUTH_BONDING;
+	case BT_SECURITY_MEDIUM:
+		return SMP_AUTH_BONDING;
+	default:
+		return SMP_AUTH_NONE;
+	}
+}
+
+static void build_pairing_cmd(struct l2cap_conn *conn,
+				struct smp_cmd_pairing *req,
+				struct smp_cmd_pairing *rsp,
+				__u8 authreq)
+{
+	u8 dist_keys = 0;
+
+	if (test_bit(HCI_PAIRABLE, &conn->hcon->hdev->dev_flags)) {
+		dist_keys = SMP_DIST_ENC_KEY;
+		authreq |= SMP_AUTH_BONDING;
+	} else {
+		authreq &= ~SMP_AUTH_BONDING;
+	}
+
+	if (rsp == NULL) {
+		req->io_capability = conn->hcon->io_capability;
+		req->oob_flag = SMP_OOB_NOT_PRESENT;
+		req->max_key_size = SMP_MAX_ENC_KEY_SIZE;
+		req->init_key_dist = 0;
+		req->resp_key_dist = dist_keys;
+		req->auth_req = authreq;
+		return;
+	}
+
+	rsp->io_capability = conn->hcon->io_capability;
+	rsp->oob_flag = SMP_OOB_NOT_PRESENT;
+	rsp->max_key_size = SMP_MAX_ENC_KEY_SIZE;
+	rsp->init_key_dist = 0;
+	rsp->resp_key_dist = req->resp_key_dist & dist_keys;
+	rsp->auth_req = authreq;
+}
+
+static u8 check_enc_key_size(struct l2cap_conn *conn, __u8 max_key_size)
+{
+	struct smp_chan *smp = conn->smp_chan;
+
+	if ((max_key_size > SMP_MAX_ENC_KEY_SIZE) ||
+			(max_key_size < SMP_MIN_ENC_KEY_SIZE))
+		return SMP_ENC_KEY_SIZE;
+
+	smp->enc_key_size = max_key_size;
+
+	return 0;
+}
+
+static void smp_failure(struct l2cap_conn *conn, u8 reason, u8 send)
+{
+	struct hci_conn *hcon = conn->hcon;
+
+	if (send)
+		smp_send_cmd(conn, SMP_CMD_PAIRING_FAIL, sizeof(reason),
+								&reason);
+
+	clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->hcon->flags);
+	mgmt_auth_failed(conn->hcon->hdev, conn->dst, hcon->type,
+			 hcon->dst_type, reason);
+
+	if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags)) {
+		cancel_delayed_work_sync(&conn->security_timer);
+		smp_chan_destroy(conn);
+	}
+}
+
+#define JUST_WORKS	0x00
+#define JUST_CFM	0x01
+#define REQ_PASSKEY	0x02
+#define CFM_PASSKEY	0x03
+#define REQ_OOB		0x04
+#define OVERLAP		0xFF
+
+static const u8 gen_method[5][5] = {
+	{ JUST_WORKS,  JUST_CFM,    REQ_PASSKEY, JUST_WORKS, REQ_PASSKEY },
+	{ JUST_WORKS,  JUST_CFM,    REQ_PASSKEY, JUST_WORKS, REQ_PASSKEY },
+	{ CFM_PASSKEY, CFM_PASSKEY, REQ_PASSKEY, JUST_WORKS, CFM_PASSKEY },
+	{ JUST_WORKS,  JUST_CFM,    JUST_WORKS,  JUST_WORKS, JUST_CFM    },
+	{ CFM_PASSKEY, CFM_PASSKEY, REQ_PASSKEY, JUST_WORKS, OVERLAP     },
+};
+
+static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
+						u8 local_io, u8 remote_io)
+{
+	struct hci_conn *hcon = conn->hcon;
+	struct smp_chan *smp = conn->smp_chan;
+	u8 method;
+	u32 passkey = 0;
+	int ret = 0;
+
+	/* Initialize key for JUST WORKS */
+	memset(smp->tk, 0, sizeof(smp->tk));
+	clear_bit(SMP_FLAG_TK_VALID, &smp->smp_flags);
+
+	BT_DBG("tk_request: auth:%d lcl:%d rem:%d", auth, local_io, remote_io);
+
+	/* If neither side wants MITM, use JUST WORKS */
+	/* If either side has unknown io_caps, use JUST WORKS */
+	/* Otherwise, look up method from the table */
+	if (!(auth & SMP_AUTH_MITM) ||
+			local_io > SMP_IO_KEYBOARD_DISPLAY ||
+			remote_io > SMP_IO_KEYBOARD_DISPLAY)
+		method = JUST_WORKS;
+	else
+		method = gen_method[remote_io][local_io];
+
+	/* If not bonding, don't ask user to confirm a Zero TK */
+	if (!(auth & SMP_AUTH_BONDING) && method == JUST_CFM)
+		method = JUST_WORKS;
+
+	/* If Just Works, Continue with Zero TK */
+	if (method == JUST_WORKS) {
+		set_bit(SMP_FLAG_TK_VALID, &smp->smp_flags);
+		return 0;
+	}
+
+	/* Not Just Works/Confirm results in MITM Authentication */
+	if (method != JUST_CFM)
+		set_bit(SMP_FLAG_MITM_AUTH, &smp->smp_flags);
+
+	/* If both devices have Keyoard-Display I/O, the master
+	 * Confirms and the slave Enters the passkey.
+	 */
+	if (method == OVERLAP) {
+		if (hcon->link_mode & HCI_LM_MASTER)
+			method = CFM_PASSKEY;
+		else
+			method = REQ_PASSKEY;
+	}
+
+	/* Generate random passkey. Not valid until confirmed. */
+	if (method == CFM_PASSKEY) {
+		u8 key[16];
+
+		memset(key, 0, sizeof(key));
+		get_random_bytes(&passkey, sizeof(passkey));
+		passkey %= 1000000;
+		put_unaligned_le32(passkey, key);
+		swap128(key, smp->tk);
+		BT_DBG("PassKey: %d", passkey);
+	}
+
+	hci_dev_lock(hcon->hdev);
+
+	if (method == REQ_PASSKEY)
+		ret = mgmt_user_passkey_request(hcon->hdev, conn->dst,
+						hcon->type, hcon->dst_type);
+	else
+		ret = mgmt_user_confirm_request(hcon->hdev, conn->dst,
+						hcon->type, hcon->dst_type,
+						cpu_to_le32(passkey), 0);
+
+	hci_dev_unlock(hcon->hdev);
+
+	return ret;
+}
+
+static void confirm_work(struct work_struct *work)
+{
+	struct smp_chan *smp = container_of(work, struct smp_chan, confirm);
+	struct l2cap_conn *conn = smp->conn;
+	struct crypto_blkcipher *tfm;
+	struct smp_cmd_pairing_confirm cp;
+	int ret;
+	u8 res[16], reason;
+
+	BT_DBG("conn %p", conn);
+
+	tfm = crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(tfm)) {
+		reason = SMP_UNSPECIFIED;
+		goto error;
+	}
+
+	smp->tfm = tfm;
+
+	if (conn->hcon->out)
+		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp, 0,
+			     conn->src, conn->hcon->dst_type, conn->dst, res);
+	else
+		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp,
+			     conn->hcon->dst_type, conn->dst, 0, conn->src,
+			     res);
+	if (ret) {
+		reason = SMP_UNSPECIFIED;
+		goto error;
+	}
+
+	clear_bit(SMP_FLAG_CFM_PENDING, &smp->smp_flags);
+
+	swap128(res, cp.confirm_val);
+	smp_send_cmd(smp->conn, SMP_CMD_PAIRING_CONFIRM, sizeof(cp), &cp);
+
+	return;
+
+error:
+	smp_failure(conn, reason, 1);
+}
+
+static void random_work(struct work_struct *work)
+{
+	struct smp_chan *smp = container_of(work, struct smp_chan, random);
+	struct l2cap_conn *conn = smp->conn;
+	struct hci_conn *hcon = conn->hcon;
+	struct crypto_blkcipher *tfm = smp->tfm;
+	u8 reason, confirm[16], res[16], key[16];
+	int ret;
+
+	if (IS_ERR_OR_NULL(tfm)) {
+		reason = SMP_UNSPECIFIED;
+		goto error;
+	}
+
+	BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave");
+
+	if (hcon->out)
+		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp, 0,
+			     conn->src, hcon->dst_type, conn->dst, res);
+	else
+		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp,
+			     hcon->dst_type, conn->dst, 0, conn->src, res);
+	if (ret) {
+		reason = SMP_UNSPECIFIED;
+		goto error;
+	}
+
+	swap128(res, confirm);
+
+	if (memcmp(smp->pcnf, confirm, sizeof(smp->pcnf)) != 0) {
+		BT_ERR("Pairing failed (confirmation values mismatch)");
+		reason = SMP_CONFIRM_FAILED;
+		goto error;
+	}
+
+	if (hcon->out) {
+		u8 stk[16], rand[8];
+		__le16 ediv;
+
+		memset(rand, 0, sizeof(rand));
+		ediv = 0;
+
+		smp_s1(tfm, smp->tk, smp->rrnd, smp->prnd, key);
+		swap128(key, stk);
+
+		memset(stk + smp->enc_key_size, 0,
+		       SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
+
+		if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags)) {
+			reason = SMP_UNSPECIFIED;
+			goto error;
+		}
+
+		hci_le_start_enc(hcon, ediv, rand, stk);
+		hcon->enc_key_size = smp->enc_key_size;
+	} else {
+		u8 stk[16], r[16], rand[8];
+		__le16 ediv;
+
+		memset(rand, 0, sizeof(rand));
+		ediv = 0;
+
+		swap128(smp->prnd, r);
+		smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(r), r);
+
+		smp_s1(tfm, smp->tk, smp->prnd, smp->rrnd, key);
+		swap128(key, stk);
+
+		memset(stk + smp->enc_key_size, 0,
+				SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
+
+		hci_add_ltk(hcon->hdev, conn->dst, hcon->dst_type,
+			    HCI_SMP_STK_SLAVE, 0, 0, stk, smp->enc_key_size,
+			    ediv, rand);
+	}
+
+	return;
+
+error:
+	smp_failure(conn, reason, 1);
+}
+
+static struct smp_chan *smp_chan_create(struct l2cap_conn *conn)
+{
+	struct smp_chan *smp;
+
+	smp = kzalloc(sizeof(struct smp_chan), GFP_ATOMIC);
+	if (!smp)
+		return NULL;
+
+	INIT_WORK(&smp->confirm, confirm_work);
+	INIT_WORK(&smp->random, random_work);
+
+	smp->conn = conn;
+	conn->smp_chan = smp;
+	conn->hcon->smp_conn = conn;
+
+	hci_conn_hold(conn->hcon);
+
+	return smp;
+}
+
+void smp_chan_destroy(struct l2cap_conn *conn)
+{
+	struct smp_chan *smp = conn->smp_chan;
+
+	BUG_ON(!smp);
+
+	if (smp->tfm)
+		crypto_free_blkcipher(smp->tfm);
+
+	kfree(smp);
+	conn->smp_chan = NULL;
+	conn->hcon->smp_conn = NULL;
+	hci_conn_put(conn->hcon);
+}
+
+int smp_user_confirm_reply(struct hci_conn *hcon, u16 mgmt_op, __le32 passkey)
+{
+	struct l2cap_conn *conn = hcon->smp_conn;
+	struct smp_chan *smp;
+	u32 value;
+	u8 key[16];
+
+	BT_DBG("");
+
+	if (!conn)
+		return -ENOTCONN;
+
+	smp = conn->smp_chan;
+
+	switch (mgmt_op) {
+	case MGMT_OP_USER_PASSKEY_REPLY:
+		value = le32_to_cpu(passkey);
+		memset(key, 0, sizeof(key));
+		BT_DBG("PassKey: %d", value);
+		put_unaligned_le32(value, key);
+		swap128(key, smp->tk);
+		/* Fall Through */
+	case MGMT_OP_USER_CONFIRM_REPLY:
+		set_bit(SMP_FLAG_TK_VALID, &smp->smp_flags);
+		break;
+	case MGMT_OP_USER_PASSKEY_NEG_REPLY:
+	case MGMT_OP_USER_CONFIRM_NEG_REPLY:
+		smp_failure(conn, SMP_PASSKEY_ENTRY_FAILED, 1);
+		return 0;
+	default:
+		smp_failure(conn, SMP_PASSKEY_ENTRY_FAILED, 1);
+		return -EOPNOTSUPP;
+	}
+
+	/* If it is our turn to send Pairing Confirm, do so now */
+	if (test_bit(SMP_FLAG_CFM_PENDING, &smp->smp_flags))
+		queue_work(hcon->hdev->workqueue, &smp->confirm);
+
+	return 0;
+}
+
+static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	struct smp_cmd_pairing rsp, *req = (void *) skb->data;
+	struct smp_chan *smp;
+	u8 key_size;
+	u8 auth = SMP_AUTH_NONE;
+	int ret;
+
+	BT_DBG("conn %p", conn);
+
+	if (conn->hcon->link_mode & HCI_LM_MASTER)
+		return SMP_CMD_NOTSUPP;
+
+	if (!test_and_set_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags))
+		smp = smp_chan_create(conn);
+
+	smp = conn->smp_chan;
+
+	smp->preq[0] = SMP_CMD_PAIRING_REQ;
+	memcpy(&smp->preq[1], req, sizeof(*req));
+	skb_pull(skb, sizeof(*req));
+
+	/* We didn't start the pairing, so match remote */
+	if (req->auth_req & SMP_AUTH_BONDING)
+		auth = req->auth_req;
+
+	conn->hcon->pending_sec_level = authreq_to_seclevel(auth);
+
+	build_pairing_cmd(conn, req, &rsp, auth);
+
+	key_size = min(req->max_key_size, rsp.max_key_size);
+	if (check_enc_key_size(conn, key_size))
+		return SMP_ENC_KEY_SIZE;
+
+	ret = smp_rand(smp->prnd);
+	if (ret)
+		return SMP_UNSPECIFIED;
+
+	smp->prsp[0] = SMP_CMD_PAIRING_RSP;
+	memcpy(&smp->prsp[1], &rsp, sizeof(rsp));
+
+	smp_send_cmd(conn, SMP_CMD_PAIRING_RSP, sizeof(rsp), &rsp);
+
+	/* Request setup of TK */
+	ret = tk_request(conn, 0, auth, rsp.io_capability, req->io_capability);
+	if (ret)
+		return SMP_UNSPECIFIED;
+
+	return 0;
+}
+
+static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	struct smp_cmd_pairing *req, *rsp = (void *) skb->data;
+	struct smp_chan *smp = conn->smp_chan;
+	struct hci_dev *hdev = conn->hcon->hdev;
+	u8 key_size, auth = SMP_AUTH_NONE;
+	int ret;
+
+	BT_DBG("conn %p", conn);
+
+	if (!(conn->hcon->link_mode & HCI_LM_MASTER))
+		return SMP_CMD_NOTSUPP;
+
+	skb_pull(skb, sizeof(*rsp));
+
+	req = (void *) &smp->preq[1];
+
+	key_size = min(req->max_key_size, rsp->max_key_size);
+	if (check_enc_key_size(conn, key_size))
+		return SMP_ENC_KEY_SIZE;
+
+	ret = smp_rand(smp->prnd);
+	if (ret)
+		return SMP_UNSPECIFIED;
+
+	smp->prsp[0] = SMP_CMD_PAIRING_RSP;
+	memcpy(&smp->prsp[1], rsp, sizeof(*rsp));
+
+	if ((req->auth_req & SMP_AUTH_BONDING) &&
+			(rsp->auth_req & SMP_AUTH_BONDING))
+		auth = SMP_AUTH_BONDING;
+
+	auth |= (req->auth_req | rsp->auth_req) & SMP_AUTH_MITM;
+
+	ret = tk_request(conn, 0, auth, rsp->io_capability, req->io_capability);
+	if (ret)
+		return SMP_UNSPECIFIED;
+
+	set_bit(SMP_FLAG_CFM_PENDING, &smp->smp_flags);
+
+	/* Can't compose response until we have been confirmed */
+	if (!test_bit(SMP_FLAG_TK_VALID, &smp->smp_flags))
+		return 0;
+
+	queue_work(hdev->workqueue, &smp->confirm);
+
+	return 0;
+}
+
+static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	struct smp_chan *smp = conn->smp_chan;
+	struct hci_dev *hdev = conn->hcon->hdev;
+
+	BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave");
+
+	memcpy(smp->pcnf, skb->data, sizeof(smp->pcnf));
+	skb_pull(skb, sizeof(smp->pcnf));
+
+	if (conn->hcon->out) {
+		u8 random[16];
+
+		swap128(smp->prnd, random);
+		smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(random),
+								random);
+	} else if (test_bit(SMP_FLAG_TK_VALID, &smp->smp_flags)) {
+		queue_work(hdev->workqueue, &smp->confirm);
+	} else {
+		set_bit(SMP_FLAG_CFM_PENDING, &smp->smp_flags);
+	}
+
+	return 0;
+}
+
+static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	struct smp_chan *smp = conn->smp_chan;
+	struct hci_dev *hdev = conn->hcon->hdev;
+
+	BT_DBG("conn %p", conn);
+
+	swap128(skb->data, smp->rrnd);
+	skb_pull(skb, sizeof(smp->rrnd));
+
+	queue_work(hdev->workqueue, &smp->random);
+
+	return 0;
+}
+
+static u8 smp_ltk_encrypt(struct l2cap_conn *conn)
+{
+	struct smp_ltk *key;
+	struct hci_conn *hcon = conn->hcon;
+
+	key = hci_find_ltk_by_addr(hcon->hdev, conn->dst, hcon->dst_type);
+	if (!key)
+		return 0;
+
+	if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags))
+		return 1;
+
+	hci_le_start_enc(hcon, key->ediv, key->rand, key->val);
+	hcon->enc_key_size = key->enc_size;
+
+	return 1;
+
+}
+static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	struct smp_cmd_security_req *rp = (void *) skb->data;
+	struct smp_cmd_pairing cp;
+	struct hci_conn *hcon = conn->hcon;
+	struct smp_chan *smp;
+
+	BT_DBG("conn %p", conn);
+
+	hcon->pending_sec_level = authreq_to_seclevel(rp->auth_req);
+
+	if (smp_ltk_encrypt(conn))
+		return 0;
+
+	if (test_and_set_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags))
+		return 0;
+
+	smp = smp_chan_create(conn);
+
+	skb_pull(skb, sizeof(*rp));
+
+	memset(&cp, 0, sizeof(cp));
+	build_pairing_cmd(conn, &cp, NULL, rp->auth_req);
+
+	smp->preq[0] = SMP_CMD_PAIRING_REQ;
+	memcpy(&smp->preq[1], &cp, sizeof(cp));
+
+	smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
+
+	return 0;
+}
+
+int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level)
+{
+	struct hci_conn *hcon = conn->hcon;
+	struct smp_chan *smp = conn->smp_chan;
+	__u8 authreq;
+
+	BT_DBG("conn %p hcon %p level 0x%2.2x", conn, hcon, sec_level);
+
+	if (!lmp_host_le_capable(hcon->hdev))
+		return 1;
+
+	if (sec_level == BT_SECURITY_LOW)
+		return 1;
+
+	if (hcon->sec_level >= sec_level)
+		return 1;
+
+	if (hcon->link_mode & HCI_LM_MASTER)
+		if (smp_ltk_encrypt(conn))
+			goto done;
+
+	if (test_and_set_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags))
+		return 0;
+
+	smp = smp_chan_create(conn);
+	if (!smp)
+		return 1;
+
+	authreq = seclevel_to_authreq(sec_level);
+
+	if (hcon->link_mode & HCI_LM_MASTER) {
+		struct smp_cmd_pairing cp;
+
+		build_pairing_cmd(conn, &cp, NULL, authreq);
+		smp->preq[0] = SMP_CMD_PAIRING_REQ;
+		memcpy(&smp->preq[1], &cp, sizeof(cp));
+
+		smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp);
+	} else {
+		struct smp_cmd_security_req cp;
+		cp.auth_req = authreq;
+		smp_send_cmd(conn, SMP_CMD_SECURITY_REQ, sizeof(cp), &cp);
+	}
+
+done:
+	hcon->pending_sec_level = sec_level;
+
+	return 0;
+}
+
+static int smp_cmd_encrypt_info(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	struct smp_cmd_encrypt_info *rp = (void *) skb->data;
+	struct smp_chan *smp = conn->smp_chan;
+
+	skb_pull(skb, sizeof(*rp));
+
+	memcpy(smp->tk, rp->ltk, sizeof(smp->tk));
+
+	return 0;
+}
+
+static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	struct smp_cmd_master_ident *rp = (void *) skb->data;
+	struct smp_chan *smp = conn->smp_chan;
+	struct hci_dev *hdev = conn->hcon->hdev;
+	struct hci_conn *hcon = conn->hcon;
+	u8 authenticated;
+
+	skb_pull(skb, sizeof(*rp));
+
+	hci_dev_lock(hdev);
+	authenticated = (conn->hcon->sec_level == BT_SECURITY_HIGH);
+	hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type,
+		    HCI_SMP_LTK, 1, authenticated, smp->tk, smp->enc_key_size,
+		    rp->ediv, rp->rand);
+	smp_distribute_keys(conn, 1);
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb)
+{
+	__u8 code = skb->data[0];
+	__u8 reason;
+	int err = 0;
+
+	if (!lmp_host_le_capable(conn->hcon->hdev)) {
+		err = -ENOTSUPP;
+		reason = SMP_PAIRING_NOTSUPP;
+		goto done;
+	}
+
+	skb_pull(skb, sizeof(code));
+
+	switch (code) {
+	case SMP_CMD_PAIRING_REQ:
+		reason = smp_cmd_pairing_req(conn, skb);
+		break;
+
+	case SMP_CMD_PAIRING_FAIL:
+		smp_failure(conn, skb->data[0], 0);
+		reason = 0;
+		err = -EPERM;
+		break;
+
+	case SMP_CMD_PAIRING_RSP:
+		reason = smp_cmd_pairing_rsp(conn, skb);
+		break;
+
+	case SMP_CMD_SECURITY_REQ:
+		reason = smp_cmd_security_req(conn, skb);
+		break;
+
+	case SMP_CMD_PAIRING_CONFIRM:
+		reason = smp_cmd_pairing_confirm(conn, skb);
+		break;
+
+	case SMP_CMD_PAIRING_RANDOM:
+		reason = smp_cmd_pairing_random(conn, skb);
+		break;
+
+	case SMP_CMD_ENCRYPT_INFO:
+		reason = smp_cmd_encrypt_info(conn, skb);
+		break;
+
+	case SMP_CMD_MASTER_IDENT:
+		reason = smp_cmd_master_ident(conn, skb);
+		break;
+
+	case SMP_CMD_IDENT_INFO:
+	case SMP_CMD_IDENT_ADDR_INFO:
+	case SMP_CMD_SIGN_INFO:
+		/* Just ignored */
+		reason = 0;
+		break;
+
+	default:
+		BT_DBG("Unknown command code 0x%2.2x", code);
+
+		reason = SMP_CMD_NOTSUPP;
+		err = -EOPNOTSUPP;
+		goto done;
+	}
+
+done:
+	if (reason)
+		smp_failure(conn, reason, 1);
+
+	kfree_skb(skb);
+	return err;
+}
+
+int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
+{
+	struct smp_cmd_pairing *req, *rsp;
+	struct smp_chan *smp = conn->smp_chan;
+	__u8 *keydist;
+
+	BT_DBG("conn %p force %d", conn, force);
+
+	if (!test_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags))
+		return 0;
+
+	rsp = (void *) &smp->prsp[1];
+
+	/* The responder sends its keys first */
+	if (!force && conn->hcon->out && (rsp->resp_key_dist & 0x07))
+		return 0;
+
+	req = (void *) &smp->preq[1];
+
+	if (conn->hcon->out) {
+		keydist = &rsp->init_key_dist;
+		*keydist &= req->init_key_dist;
+	} else {
+		keydist = &rsp->resp_key_dist;
+		*keydist &= req->resp_key_dist;
+	}
+
+
+	BT_DBG("keydist 0x%x", *keydist);
+
+	if (*keydist & SMP_DIST_ENC_KEY) {
+		struct smp_cmd_encrypt_info enc;
+		struct smp_cmd_master_ident ident;
+		struct hci_conn *hcon = conn->hcon;
+		u8 authenticated;
+		__le16 ediv;
+
+		get_random_bytes(enc.ltk, sizeof(enc.ltk));
+		get_random_bytes(&ediv, sizeof(ediv));
+		get_random_bytes(ident.rand, sizeof(ident.rand));
+
+		smp_send_cmd(conn, SMP_CMD_ENCRYPT_INFO, sizeof(enc), &enc);
+
+		authenticated = hcon->sec_level == BT_SECURITY_HIGH;
+		hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type,
+			    HCI_SMP_LTK_SLAVE, 1, authenticated,
+			    enc.ltk, smp->enc_key_size, ediv, ident.rand);
+
+		ident.ediv = cpu_to_le16(ediv);
+
+		smp_send_cmd(conn, SMP_CMD_MASTER_IDENT, sizeof(ident), &ident);
+
+		*keydist &= ~SMP_DIST_ENC_KEY;
+	}
+
+	if (*keydist & SMP_DIST_ID_KEY) {
+		struct smp_cmd_ident_addr_info addrinfo;
+		struct smp_cmd_ident_info idinfo;
+
+		/* Send a dummy key */
+		get_random_bytes(idinfo.irk, sizeof(idinfo.irk));
+
+		smp_send_cmd(conn, SMP_CMD_IDENT_INFO, sizeof(idinfo), &idinfo);
+
+		/* Just public address */
+		memset(&addrinfo, 0, sizeof(addrinfo));
+		bacpy(&addrinfo.bdaddr, conn->src);
+
+		smp_send_cmd(conn, SMP_CMD_IDENT_ADDR_INFO, sizeof(addrinfo),
+								&addrinfo);
+
+		*keydist &= ~SMP_DIST_ID_KEY;
+	}
+
+	if (*keydist & SMP_DIST_SIGN) {
+		struct smp_cmd_sign_info sign;
+
+		/* Send a dummy key */
+		get_random_bytes(sign.csrk, sizeof(sign.csrk));
+
+		smp_send_cmd(conn, SMP_CMD_SIGN_INFO, sizeof(sign), &sign);
+
+		*keydist &= ~SMP_DIST_SIGN;
+	}
+
+	if (conn->hcon->out || force) {
+		clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags);
+		cancel_delayed_work_sync(&conn->security_timer);
+		smp_chan_destroy(conn);
+	}
+
+	return 0;
+}