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authorJohan Hedberg <johan.hedberg@nokia.com>2011-04-28 11:28:54 -0700
committerGustavo F. Padovan <padovan@profusion.mobi>2011-04-28 16:02:30 -0300
commit9f61656a60c9506e3e4cd41af5efbcf6a30ee3b9 (patch)
treebfeb4576c064f441c0262548165fa5ba9f19b032 /net/bluetooth
parent7a828908a026d801c6192fd32cfb35d6843f1539 (diff)
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Bluetooth: Add variable SSP auto-accept delay support
Some test systems require an arbitrary delay to the auto-accept test cases for Secure Simple Pairing in order for the tests to pass. Previously when this was handled in user space it was worked around by code modifications and recompilation, but now that it's on the kernel side it's more convenient if there's a debugfs interface for it. Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_conn.c17
-rw-r--r--net/bluetooth/hci_event.c10
-rw-r--r--net/bluetooth/hci_sysfs.c31
3 files changed, 57 insertions, 1 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 74cd755..7f5ad8a 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -269,6 +269,19 @@ static void hci_conn_idle(unsigned long arg)
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_dev_lock(hdev);
+
+ hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, sizeof(conn->dst),
+ &conn->dst);
+
+ hci_dev_unlock(hdev);
+}
+
struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
{
struct hci_conn *conn;
@@ -312,6 +325,8 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
setup_timer(&conn->disc_timer, hci_conn_timeout, (unsigned long)conn);
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);
@@ -342,6 +357,8 @@ int hci_conn_del(struct hci_conn *conn)
del_timer(&conn->disc_timer);
+ del_timer(&conn->auto_accept_timer);
+
if (conn->type == ACL_LINK) {
struct hci_conn *sco = conn->link;
if (sco)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 514e10e..a479389 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2515,7 +2515,15 @@ static inline void hci_user_confirm_request_evt(struct hci_dev *hdev,
/* If no side requires MITM protection; auto-accept */
if ((!loc_mitm || conn->remote_cap == 0x03) &&
(!rem_mitm || conn->io_capability == 0x03)) {
- BT_DBG("Auto-accept of user confirmation");
+ 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;
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 8775933..a6c3aa8 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -511,6 +511,35 @@ static const struct file_operations uuids_fops = {
.release = single_release,
};
+static int auto_accept_delay_set(void *data, u64 val)
+{
+ struct hci_dev *hdev = data;
+
+ hci_dev_lock_bh(hdev);
+
+ hdev->auto_accept_delay = val;
+
+ hci_dev_unlock_bh(hdev);
+
+ return 0;
+}
+
+static int auto_accept_delay_get(void *data, u64 *val)
+{
+ struct hci_dev *hdev = data;
+
+ hci_dev_lock_bh(hdev);
+
+ *val = hdev->auto_accept_delay;
+
+ hci_dev_unlock_bh(hdev);
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
+ auto_accept_delay_set, "%llu\n");
+
int hci_register_sysfs(struct hci_dev *hdev)
{
struct device *dev = &hdev->dev;
@@ -545,6 +574,8 @@ int hci_register_sysfs(struct hci_dev *hdev)
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;
}