From 1d8f5d16913d74e428950ee02fe9ff7e6391c120 Mon Sep 17 00:00:00 2001 From: "Gustavo F. Padovan" Date: Sat, 1 May 2010 16:15:37 -0300 Subject: [PATCH] Bluetooth: Support case with F bit set under WAIT_F state. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit On receipt of a F=1 under WAIT_F state ERTM shall stop monitor timer and start retransmission timer (if there are unacked frames). Signed-off-by: Gustavo F. Padovan Reviewed-by: João Paulo Rechi Vita Signed-off-by: Marcel Holtmann --- net/bluetooth/l2cap.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 06687e264703..36cd4e4e6ad1 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -3364,6 +3364,13 @@ static inline int l2cap_data_channel_iframe(struct sock *sk, u16 rx_control, str BT_DBG("sk %p rx_control 0x%4.4x len %d", sk, rx_control, skb->len); + if (L2CAP_CTRL_FINAL & rx_control) { + del_timer(&pi->monitor_timer); + if (pi->unacked_frames > 0) + __mod_retrans_timer(); + pi->conn_state &= ~L2CAP_CONN_WAIT_F; + } + pi->expected_ack_seq = req_seq; l2cap_drop_acked_frames(sk); @@ -3453,6 +3460,13 @@ static inline int l2cap_data_channel_sframe(struct sock *sk, u16 rx_control, str BT_DBG("sk %p rx_control 0x%4.4x len %d", sk, rx_control, skb->len); + if (L2CAP_CTRL_FINAL & rx_control) { + del_timer(&pi->monitor_timer); + if (pi->unacked_frames > 0) + __mod_retrans_timer(); + pi->conn_state &= ~L2CAP_CONN_WAIT_F; + } + switch (rx_control & L2CAP_CTRL_SUPERVISE) { case L2CAP_SUPER_RCV_READY: if (rx_control & L2CAP_CTRL_POLL) { @@ -3472,14 +3486,6 @@ static inline int l2cap_data_channel_sframe(struct sock *sk, u16 rx_control, str l2cap_ertm_send(sk); } - if (!(pi->conn_state & L2CAP_CONN_WAIT_F)) - break; - - pi->conn_state &= ~L2CAP_CONN_WAIT_F; - del_timer(&pi->monitor_timer); - - if (pi->unacked_frames > 0) - __mod_retrans_timer(); } else { pi->expected_ack_seq = tx_seq; l2cap_drop_acked_frames(sk); -- 2.39.5