Bluetooth: fix not setting security level when creating a rfcomm session

This cause 'No Bonding' to be used if userspace has not yet been paired
with remote device since the l2cap socket used to create the rfcomm
session does not have any security level set.

Signed-off-by: Luiz Augusto von Dentz <[e-mail]>
Acked-by: Ville Tervo <[e-mail]>
Acked-by: Marcel Holtmann <[e-mail]>
Signed-off-by: Gustavo F. Padovan <[e-mail]>

net/bluetooth/rfcomm/core.c

···
 
 static void rfcomm_process_connect(struct rfcomm_session *s);
 
-static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src, bdaddr_t *dst, int *err);
+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);
 
···
 
 	s = rfcomm_session_get(src, dst);
 	if (!s) {
-		s = rfcomm_session_create(src, dst, &err);
+		s = rfcomm_session_create(src, dst, d->sec_level, &err);
 		if (!s)
 			return err;
 	}
···
 	rfcomm_session_put(s);
 }
 
-static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src, bdaddr_t *dst, int *err)
+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;
···
 	sk = sock->sk;
 	lock_sock(sk);
 	l2cap_pi(sk)->imtu = l2cap_mtu;
+	l2cap_pi(sk)->sec_level = sec_level;
 	if (l2cap_ertm)
 		l2cap_pi(sk)->mode = L2CAP_MODE_ERTM;
 	release_sock(sk);