Bluetooth: Full support for receiving L2CAP SREJ frames

Support for receiving of SREJ frames as specified by the state table.

Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 9f2126a..7ca614a 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -328,6 +328,7 @@
 	__u8		expected_tx_seq;
 	__u8		buffer_seq;
 	__u8		buffer_seq_srej;
+	__u8		srej_save_reqseq;
 	__u8		unacked_frames;
 	__u8		retry_count;
 	__u8		num_to_ack;
@@ -370,6 +371,8 @@
 #define L2CAP_CONN_SAR_SDU         0x01
 #define L2CAP_CONN_SREJ_SENT       0x02
 #define L2CAP_CONN_WAIT_F          0x04
+#define L2CAP_CONN_SREJ_ACT        0x08
+#define L2CAP_CONN_SEND_PBIT       0x10
 
 #define __mod_retrans_timer() mod_timer(&l2cap_pi(sk)->retrans_timer, \
 		jiffies +  msecs_to_jiffies(L2CAP_DEFAULT_RETRANS_TO));