1 files changed, 32 insertions, 52 deletions

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index c791fcda7b2d..7550abb0c96a 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -305,33 +305,44 @@ static void l2cap_chan_del(struct sock *sk, int err)
         }
 }
 
-/* Service level security */
-static inline int l2cap_check_security(struct sock *sk)
+static inline u8 l2cap_get_auth_type(struct sock *sk)
 {
-        struct l2cap_conn *conn = l2cap_pi(sk)->conn;
-        __u8 auth_type;
+        if (sk->sk_type == SOCK_RAW) {
+                switch (l2cap_pi(sk)->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 (l2cap_pi(sk)->psm == cpu_to_le16(0x0001)) {
+                if (l2cap_pi(sk)->sec_level == BT_SECURITY_LOW)
+                        l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
 
-        if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001)) {
                 if (l2cap_pi(sk)->sec_level == BT_SECURITY_HIGH)
-                        auth_type = HCI_AT_NO_BONDING_MITM;
+                        return HCI_AT_NO_BONDING_MITM;
                 else
-                        auth_type = HCI_AT_NO_BONDING;
-
-                if (l2cap_pi(sk)->sec_level == BT_SECURITY_LOW)
-                        l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
+                        return HCI_AT_NO_BONDING;
         } else {
                 switch (l2cap_pi(sk)->sec_level) {
                 case BT_SECURITY_HIGH:
-                        auth_type = HCI_AT_GENERAL_BONDING_MITM;
-                        break;
+                        return HCI_AT_GENERAL_BONDING_MITM;
                 case BT_SECURITY_MEDIUM:
-                        auth_type = HCI_AT_GENERAL_BONDING;
-                        break;
+                        return HCI_AT_GENERAL_BONDING;
                 default:
-                        auth_type = HCI_AT_NO_BONDING;
-                        break;
+                        return HCI_AT_NO_BONDING;
                 }
         }
+}
+
+/* Service level security */
+static inline int l2cap_check_security(struct sock *sk)
+{
+        struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+        __u8 auth_type;
+
+        auth_type = l2cap_get_auth_type(sk);
 
         return hci_conn_security(conn->hcon, l2cap_pi(sk)->sec_level,
                                                                 auth_type);
@@ -1068,39 +1079,7 @@ static int l2cap_do_connect(struct sock *sk)
 
         err = -ENOMEM;
 
-        if (sk->sk_type == SOCK_RAW) {
-                switch (l2cap_pi(sk)->sec_level) {
-                case BT_SECURITY_HIGH:
-                        auth_type = HCI_AT_DEDICATED_BONDING_MITM;
-                        break;
-                case BT_SECURITY_MEDIUM:
-                        auth_type = HCI_AT_DEDICATED_BONDING;
-                        break;
-                default:
-                        auth_type = HCI_AT_NO_BONDING;
-                        break;
-                }
-        } else if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001)) {
-                if (l2cap_pi(sk)->sec_level == BT_SECURITY_HIGH)
-                        auth_type = HCI_AT_NO_BONDING_MITM;
-                else
-                        auth_type = HCI_AT_NO_BONDING;
-
-                if (l2cap_pi(sk)->sec_level == BT_SECURITY_LOW)
-                        l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
-        } else {
-                switch (l2cap_pi(sk)->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;
-                }
-        }
+        auth_type = l2cap_get_auth_type(sk);
 
         hcon = hci_connect(hdev, ACL_LINK, dst,
                                         l2cap_pi(sk)->sec_level, auth_type);
@@ -1127,7 +1106,8 @@ static int l2cap_do_connect(struct sock *sk)
                 if (sk->sk_type != SOCK_SEQPACKET &&
                                 sk->sk_type != SOCK_STREAM) {
                         l2cap_sock_clear_timer(sk);
-                        sk->sk_state = BT_CONNECTED;
+                        if (l2cap_check_security(sk))
+                                sk->sk_state = BT_CONNECTED;
                 } else
                         l2cap_do_start(sk);
         }
@@ -1893,8 +1873,8 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
                 if (pi->mode == L2CAP_MODE_STREAMING) {
                         l2cap_streaming_send(sk);
                 } else {
-                        if (pi->conn_state & L2CAP_CONN_REMOTE_BUSY &&
-                                        pi->conn_state && L2CAP_CONN_WAIT_F) {
+                        if ((pi->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
+                                        (pi->conn_state & L2CAP_CONN_WAIT_F)) {
                                 err = len;
                                 break;
                         }