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>

1 files changed, 17 insertions, 0 deletions

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 74cd755b38a7..7f5ad8a2b22d 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)