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-rw-r--r--include/net/bluetooth/bluetooth.h1
-rw-r--r--include/net/bluetooth/hci.h4
-rw-r--r--include/net/bluetooth/hci_core.h9
-rw-r--r--include/net/bluetooth/mgmt.h87
-rw-r--r--net/bluetooth/Makefile2
-rw-r--r--net/bluetooth/hci_core.c17
-rw-r--r--net/bluetooth/hci_event.c33
-rw-r--r--net/bluetooth/hci_sock.c52
-rw-r--r--net/bluetooth/l2cap.c8
-rw-r--r--net/bluetooth/mgmt.c308
10 files changed, 498 insertions, 23 deletions
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index d81ea79..0c5e725 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -144,6 +144,7 @@ struct bt_skb_cb {
__u8 tx_seq;
__u8 retries;
__u8 sar;
+ unsigned short channel;
};
#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index f3c5ed6..29a7a8c 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -934,9 +934,13 @@ static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb)
struct sockaddr_hci {
sa_family_t hci_family;
unsigned short hci_dev;
+ unsigned short hci_channel;
};
#define HCI_DEV_NONE 0xffff
+#define HCI_CHANNEL_RAW 0
+#define HCI_CHANNEL_CONTROL 1
+
struct hci_filter {
unsigned long type_mask;
unsigned long event_mask[2];
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 9c08625..a29feb0 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -129,6 +129,7 @@ struct hci_dev {
wait_queue_head_t req_wait_q;
__u32 req_status;
__u32 req_result;
+ __u16 req_last_cmd;
struct inquiry_cache inq_cache;
struct hci_conn_hash conn_hash;
@@ -660,6 +661,11 @@ void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
/* ----- HCI Sockets ----- */
void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
+/* Management interface */
+int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
+int mgmt_index_added(u16 index);
+int mgmt_index_removed(u16 index);
+
/* HCI info for socket */
#define hci_pi(sk) ((struct hci_pinfo *) sk)
@@ -668,6 +674,7 @@ struct hci_pinfo {
struct hci_dev *hdev;
struct hci_filter filter;
__u32 cmsg_mask;
+ unsigned short channel;
};
/* HCI security filter */
@@ -687,6 +694,6 @@ struct hci_sec_filter {
#define hci_req_lock(d) mutex_lock(&d->req_lock)
#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
-void hci_req_complete(struct hci_dev *hdev, int result);
+void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
#endif /* __HCI_CORE_H */
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
new file mode 100644
index 0000000..ca29c13
--- /dev/null
+++ b/include/net/bluetooth/mgmt.h
@@ -0,0 +1,87 @@
+/*
+ BlueZ - Bluetooth protocol stack for Linux
+
+ Copyright (C) 2010 Nokia 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.
+*/
+
+struct mgmt_hdr {
+ __le16 opcode;
+ __le16 len;
+} __packed;
+#define MGMT_HDR_SIZE 4
+
+#define MGMT_OP_READ_VERSION 0x0001
+struct mgmt_rp_read_version {
+ __u8 version;
+ __le16 revision;
+} __packed;
+
+#define MGMT_OP_READ_INDEX_LIST 0x0003
+struct mgmt_rp_read_index_list {
+ __le16 num_controllers;
+ __le16 index[0];
+} __packed;
+
+#define MGMT_OP_READ_INFO 0x0004
+struct mgmt_cp_read_info {
+ __le16 index;
+} __packed;
+struct mgmt_rp_read_info {
+ __le16 index;
+ __u8 type;
+ __u8 powered;
+ __u8 discoverable;
+ __u8 pairable;
+ __u8 sec_mode;
+ bdaddr_t bdaddr;
+ __u8 dev_class[3];
+ __u8 features[8];
+ __u16 manufacturer;
+ __u8 hci_ver;
+ __u16 hci_rev;
+} __packed;
+
+#define MGMT_EV_CMD_COMPLETE 0x0001
+struct mgmt_ev_cmd_complete {
+ __le16 opcode;
+ __u8 data[0];
+} __packed;
+
+#define MGMT_EV_CMD_STATUS 0x0002
+struct mgmt_ev_cmd_status {
+ __u8 status;
+ __le16 opcode;
+} __packed;
+
+#define MGMT_EV_CONTROLLER_ERROR 0x0003
+struct mgmt_ev_controller_error {
+ __le16 index;
+ __u8 error_code;
+} __packed;
+
+#define MGMT_EV_INDEX_ADDED 0x0004
+struct mgmt_ev_index_added {
+ __le16 index;
+} __packed;
+
+#define MGMT_EV_INDEX_REMOVED 0x0005
+struct mgmt_ev_index_removed {
+ __le16 index;
+} __packed;
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index d1e433f..250f954 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -10,4 +10,4 @@ obj-$(CONFIG_BT_BNEP) += bnep/
obj-$(CONFIG_BT_CMTP) += cmtp/
obj-$(CONFIG_BT_HIDP) += hidp/
-bluetooth-objs := af_bluetooth.o hci_core.o hci_conn.o hci_event.o hci_sock.o hci_sysfs.o lib.o
+bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o hci_sock.o hci_sysfs.o lib.o
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 51c61f7..8b602d8 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -91,9 +91,16 @@ static void hci_notify(struct hci_dev *hdev, int event)
/* ---- HCI requests ---- */
-void hci_req_complete(struct hci_dev *hdev, int result)
+void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result)
{
- BT_DBG("%s result 0x%2.2x", hdev->name, result);
+ BT_DBG("%s command 0x%04x result 0x%2.2x", hdev->name, cmd, result);
+
+ /* If the request has set req_last_cmd (typical for multi-HCI
+ * command requests) check if the completed command matches
+ * this, and if not just return. Single HCI command requests
+ * typically leave req_last_cmd as 0 */
+ if (hdev->req_last_cmd && cmd != hdev->req_last_cmd)
+ return;
if (hdev->req_status == HCI_REQ_PEND) {
hdev->req_result = result;
@@ -149,7 +156,7 @@ static int __hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev,
break;
}
- hdev->req_status = hdev->req_result = 0;
+ hdev->req_last_cmd = hdev->req_status = hdev->req_result = 0;
BT_DBG("%s end: err %d", hdev->name, err);
@@ -252,6 +259,8 @@ static void hci_init_req(struct hci_dev *hdev, unsigned long opt)
/* Connection accept timeout ~20 secs */
param = cpu_to_le16(0x7d00);
hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
+
+ hdev->req_last_cmd = HCI_OP_WRITE_CA_TIMEOUT;
}
static void hci_scan_req(struct hci_dev *hdev, unsigned long opt)
@@ -960,6 +969,7 @@ int hci_register_dev(struct hci_dev *hdev)
}
}
+ mgmt_index_added(hdev->id);
hci_notify(hdev, HCI_DEV_REG);
return id;
@@ -989,6 +999,7 @@ int hci_unregister_dev(struct hci_dev *hdev)
for (i = 0; i < NUM_REASSEMBLY; i++)
kfree_skb(hdev->reassembly[i]);
+ mgmt_index_removed(hdev->id);
hci_notify(hdev, HCI_DEV_UNREG);
if (hdev->rfkill) {
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 8923b36..3810017 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -58,7 +58,7 @@ static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
clear_bit(HCI_INQUIRY, &hdev->flags);
- hci_req_complete(hdev, status);
+ hci_req_complete(hdev, HCI_OP_INQUIRY_CANCEL, status);
hci_conn_check_pending(hdev);
}
@@ -174,7 +174,7 @@ static void hci_cc_write_def_link_policy(struct hci_dev *hdev, struct sk_buff *s
if (!status)
hdev->link_policy = get_unaligned_le16(sent);
- hci_req_complete(hdev, status);
+ hci_req_complete(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, status);
}
static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
@@ -183,7 +183,7 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
BT_DBG("%s status 0x%x", hdev->name, status);
- hci_req_complete(hdev, status);
+ hci_req_complete(hdev, HCI_OP_RESET, status);
}
static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
@@ -235,7 +235,7 @@ static void hci_cc_write_auth_enable(struct hci_dev *hdev, struct sk_buff *skb)
clear_bit(HCI_AUTH, &hdev->flags);
}
- hci_req_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)
@@ -258,7 +258,7 @@ static void hci_cc_write_encrypt_mode(struct hci_dev *hdev, struct sk_buff *skb)
clear_bit(HCI_ENCRYPT, &hdev->flags);
}
- hci_req_complete(hdev, status);
+ 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)
@@ -285,7 +285,7 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
set_bit(HCI_PSCAN, &hdev->flags);
}
- hci_req_complete(hdev, status);
+ 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)
@@ -383,7 +383,7 @@ static void hci_cc_host_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
BT_DBG("%s status 0x%x", hdev->name, status);
- hci_req_complete(hdev, status);
+ hci_req_complete(hdev, HCI_OP_HOST_BUFFER_SIZE, status);
}
static void hci_cc_read_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
@@ -536,7 +536,16 @@ static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
if (!rp->status)
bacpy(&hdev->bdaddr, &rp->bdaddr);
- hci_req_complete(hdev, rp->status);
+ hci_req_complete(hdev, HCI_OP_READ_BD_ADDR, 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 inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
@@ -544,7 +553,7 @@ 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, status);
+ hci_req_complete(hdev, HCI_OP_INQUIRY, status);
hci_conn_check_pending(hdev);
} else
@@ -871,7 +880,7 @@ static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff
clear_bit(HCI_INQUIRY, &hdev->flags);
- hci_req_complete(hdev, status);
+ hci_req_complete(hdev, HCI_OP_INQUIRY, status);
hci_conn_check_pending(hdev);
}
@@ -1379,6 +1388,10 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
hci_cc_read_bd_addr(hdev, skb);
break;
+ case HCI_OP_WRITE_CA_TIMEOUT:
+ hci_cc_write_ca_timeout(hdev, skb);
+ break;
+
default:
BT_DBG("%s opcode 0x%x", hdev->name, opcode);
break;
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index b3753ba..29827c7 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -49,6 +49,8 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
+static int enable_mgmt;
+
/* ----- HCI socket interface ----- */
static inline int hci_test_bit(int nr, void *addr)
@@ -102,6 +104,12 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
if (skb->sk == sk)
continue;
+ if (bt_cb(skb)->channel != hci_pi(sk)->channel)
+ continue;
+
+ if (bt_cb(skb)->channel == HCI_CHANNEL_CONTROL)
+ goto clone;
+
/* Apply filter */
flt = &hci_pi(sk)->filter;
@@ -125,12 +133,14 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
continue;
}
+clone:
nskb = skb_clone(skb, GFP_ATOMIC);
if (!nskb)
continue;
/* Put type byte before the data */
- memcpy(skb_push(nskb, 1), &bt_cb(nskb)->pkt_type, 1);
+ if (bt_cb(skb)->channel == HCI_CHANNEL_RAW)
+ memcpy(skb_push(nskb, 1), &bt_cb(nskb)->pkt_type, 1);
if (sock_queue_rcv_skb(sk, nskb))
kfree_skb(nskb);
@@ -353,25 +363,38 @@ static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long a
static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
{
- struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
+ struct sockaddr_hci haddr;
struct sock *sk = sock->sk;
struct hci_dev *hdev = NULL;
- int err = 0;
+ int len, err = 0;
BT_DBG("sock %p sk %p", sock, sk);
- if (!haddr || haddr->hci_family != AF_BLUETOOTH)
+ 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;
+
+ if (haddr.hci_channel > HCI_CHANNEL_CONTROL)
+ return -EINVAL;
+
+ if (haddr.hci_channel == HCI_CHANNEL_CONTROL && !enable_mgmt)
return -EINVAL;
lock_sock(sk);
- if (hci_pi(sk)->hdev) {
+ if (sk->sk_state == BT_BOUND || hci_pi(sk)->hdev) {
err = -EALREADY;
goto done;
}
- if (haddr->hci_dev != HCI_DEV_NONE) {
- hdev = hci_dev_get(haddr->hci_dev);
+ if (haddr.hci_dev != HCI_DEV_NONE) {
+ hdev = hci_dev_get(haddr.hci_dev);
if (!hdev) {
err = -ENODEV;
goto done;
@@ -380,6 +403,7 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
atomic_inc(&hdev->promisc);
}
+ hci_pi(sk)->channel = haddr.hci_channel;
hci_pi(sk)->hdev = hdev;
sk->sk_state = BT_BOUND;
@@ -502,6 +526,17 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
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;
+ default:
+ err = -EINVAL;
+ goto done;
+ }
+
hdev = hci_pi(sk)->hdev;
if (!hdev) {
err = -EBADFD;
@@ -831,3 +866,6 @@ void __exit hci_sock_cleanup(void)
proto_unregister(&hci_sk_proto);
}
+
+module_param(enable_mgmt, bool, 0644);
+MODULE_PARM_DESC(enable_mgmt, "Enable Management interface");
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index c12eccf..c791fcd 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -3124,8 +3124,14 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
if (!sk)
return -ENOENT;
- if (sk->sk_state == BT_DISCONN)
+ if (sk->sk_state != BT_CONFIG) {
+ struct l2cap_cmd_rej rej;
+
+ rej.reason = cpu_to_le16(0x0002);
+ 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);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
new file mode 100644
index 0000000..f827fd9
--- /dev/null
+++ b/net/bluetooth/mgmt.c
@@ -0,0 +1,308 @@
+/*
+ BlueZ - Bluetooth protocol stack for Linux
+ Copyright (C) 2010 Nokia 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 <asm/uaccess.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/mgmt.h>
+
+#define MGMT_VERSION 0
+#define MGMT_REVISION 1
+
+static int cmd_status(struct sock *sk, u16 cmd, u8 status)
+{
+ struct sk_buff *skb;
+ struct mgmt_hdr *hdr;
+ struct mgmt_ev_cmd_status *ev;
+
+ BT_DBG("sock %p", sk);
+
+ 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->len = cpu_to_le16(sizeof(*ev));
+
+ ev = (void *) skb_put(skb, sizeof(*ev));
+ ev->status = status;
+ put_unaligned_le16(cmd, &ev->opcode);
+
+ if (sock_queue_rcv_skb(sk, skb) < 0)
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static int read_version(struct sock *sk)
+{
+ struct sk_buff *skb;
+ struct mgmt_hdr *hdr;
+ struct mgmt_ev_cmd_complete *ev;
+ struct mgmt_rp_read_version *rp;
+
+ BT_DBG("sock %p", sk);
+
+ skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = (void *) skb_put(skb, sizeof(*hdr));
+ hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
+ hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
+
+ ev = (void *) skb_put(skb, sizeof(*ev));
+ put_unaligned_le16(MGMT_OP_READ_VERSION, &ev->opcode);
+
+ rp = (void *) skb_put(skb, sizeof(*rp));
+ rp->version = MGMT_VERSION;
+ put_unaligned_le16(MGMT_REVISION, &rp->revision);
+
+ if (sock_queue_rcv_skb(sk, skb) < 0)
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static int read_index_list(struct sock *sk)
+{
+ struct sk_buff *skb;
+ struct mgmt_hdr *hdr;
+ struct mgmt_ev_cmd_complete *ev;
+ struct mgmt_rp_read_index_list *rp;
+ struct list_head *p;
+ size_t body_len;
+ u16 count;
+ int i;
+
+ BT_DBG("sock %p", sk);
+
+ read_lock(&hci_dev_list_lock);
+
+ count = 0;
+ list_for_each(p, &hci_dev_list) {
+ count++;
+ }
+
+ body_len = sizeof(*ev) + sizeof(*rp) + (2 * count);
+ skb = alloc_skb(sizeof(*hdr) + body_len, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = (void *) skb_put(skb, sizeof(*hdr));
+ hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
+ hdr->len = cpu_to_le16(body_len);
+
+ ev = (void *) skb_put(skb, sizeof(*ev));
+ put_unaligned_le16(MGMT_OP_READ_INDEX_LIST, &ev->opcode);
+
+ rp = (void *) skb_put(skb, sizeof(*rp) + (2 * count));
+ put_unaligned_le16(count, &rp->num_controllers);
+
+ i = 0;
+ list_for_each(p, &hci_dev_list) {
+ struct hci_dev *d = list_entry(p, struct hci_dev, list);
+ put_unaligned_le16(d->id, &rp->index[i++]);
+ BT_DBG("Added hci%u", d->id);
+ }
+
+ read_unlock(&hci_dev_list_lock);
+
+ if (sock_queue_rcv_skb(sk, skb) < 0)
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static int read_controller_info(struct sock *sk, unsigned char *data, u16 len)
+{
+ struct sk_buff *skb;
+ struct mgmt_hdr *hdr;
+ struct mgmt_ev_cmd_complete *ev;
+ struct mgmt_rp_read_info *rp;
+ struct mgmt_cp_read_info *cp;
+ struct hci_dev *hdev;
+ u16 dev_id;
+
+ BT_DBG("sock %p", sk);
+
+ if (len != 2)
+ return cmd_status(sk, MGMT_OP_READ_INFO, EINVAL);
+
+ skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + sizeof(*rp), GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = (void *) skb_put(skb, sizeof(*hdr));
+ hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
+ hdr->len = cpu_to_le16(sizeof(*ev) + sizeof(*rp));
+
+ ev = (void *) skb_put(skb, sizeof(*ev));
+ put_unaligned_le16(MGMT_OP_READ_INFO, &ev->opcode);
+
+ rp = (void *) skb_put(skb, sizeof(*rp));
+
+ cp = (void *) data;
+ dev_id = get_unaligned_le16(&cp->index);
+
+ BT_DBG("request for hci%u", dev_id);
+
+ hdev = hci_dev_get(dev_id);
+ if (!hdev) {
+ kfree_skb(skb);
+ return cmd_status(sk, MGMT_OP_READ_INFO, ENODEV);
+ }
+
+ hci_dev_lock_bh(hdev);
+
+ put_unaligned_le16(hdev->id, &rp->index);
+ rp->type = hdev->dev_type;
+
+ rp->powered = test_bit(HCI_UP, &hdev->flags);
+ rp->discoverable = test_bit(HCI_ISCAN, &hdev->flags);
+ rp->pairable = test_bit(HCI_PSCAN, &hdev->flags);
+
+ if (test_bit(HCI_AUTH, &hdev->flags))
+ rp->sec_mode = 3;
+ else if (hdev->ssp_mode > 0)
+ rp->sec_mode = 4;
+ else
+ rp->sec_mode = 2;
+
+ bacpy(&rp->bdaddr, &hdev->bdaddr);
+ memcpy(rp->features, hdev->features, 8);
+ memcpy(rp->dev_class, hdev->dev_class, 3);
+ put_unaligned_le16(hdev->manufacturer, &rp->manufacturer);
+ rp->hci_ver = hdev->hci_ver;
+ put_unaligned_le16(hdev->hci_rev, &rp->hci_rev);
+
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ if (sock_queue_rcv_skb(sk, skb) < 0)
+ kfree_skb(skb);
+
+ return 0;
+}
+
+int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
+{
+ unsigned char *buf;
+ struct mgmt_hdr *hdr;
+ u16 opcode, len;
+ int err;
+
+ BT_DBG("got %zu bytes", msglen);
+
+ if (msglen < sizeof(*hdr))
+ return -EINVAL;
+
+ buf = kmalloc(msglen, GFP_ATOMIC);
+ if (!buf)
+ return -ENOMEM;
+
+ if (memcpy_fromiovec(buf, msg->msg_iov, msglen)) {
+ err = -EFAULT;
+ goto done;
+ }
+
+ hdr = (struct mgmt_hdr *) buf;
+ opcode = get_unaligned_le16(&hdr->opcode);
+ len = get_unaligned_le16(&hdr->len);
+
+ if (len != msglen - sizeof(*hdr)) {
+ err = -EINVAL;
+ goto done;
+ }
+
+ switch (opcode) {
+ case MGMT_OP_READ_VERSION:
+ err = read_version(sk);
+ break;
+ case MGMT_OP_READ_INDEX_LIST:
+ err = read_index_list(sk);
+ break;
+ case MGMT_OP_READ_INFO:
+ err = read_controller_info(sk, buf + sizeof(*hdr), len);
+ break;
+ default:
+ BT_DBG("Unknown op %u", opcode);
+ err = cmd_status(sk, opcode, 0x01);
+ break;
+ }
+
+ if (err < 0)
+ goto done;
+
+ err = msglen;
+
+done:
+ kfree(buf);
+ return err;
+}
+
+static int mgmt_event(u16 event, void *data, u16 data_len)
+{
+ struct sk_buff *skb;
+ struct mgmt_hdr *hdr;
+
+ skb = alloc_skb(sizeof(*hdr) + data_len, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ bt_cb(skb)->channel = HCI_CHANNEL_CONTROL;
+
+ hdr = (void *) skb_put(skb, sizeof(*hdr));
+ hdr->opcode = cpu_to_le16(event);
+ hdr->len = cpu_to_le16(data_len);
+
+ memcpy(skb_put(skb, data_len), data, data_len);
+
+ hci_send_to_sock(NULL, skb);
+ kfree_skb(skb);
+
+ return 0;
+}
+
+int mgmt_index_added(u16 index)
+{
+ struct mgmt_ev_index_added ev;
+
+ put_unaligned_le16(index, &ev.index);
+
+ return mgmt_event(MGMT_EV_INDEX_ADDED, &ev, sizeof(ev));
+}
+
+int mgmt_index_removed(u16 index)
+{
+ struct mgmt_ev_index_added ev;
+
+ put_unaligned_le16(index, &ev.index);
+
+ return mgmt_event(MGMT_EV_INDEX_REMOVED, &ev, sizeof(ev));
+}
generated by cgit v1.1 at 2024-12-26 02:29:26 +0000