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| author | Gustavo F. Padovan <padovan@profusion.mobi> | 2010-05-01 16:15:38 -0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2010-05-10 09:28:47 +0200 |
| commit | 99b0d4b7b09edeacf4542bced5c01239375b51a9 (patch) | |
| tree | decc21dd55eb8189ac6fbd01e52ee3667070eb8a /net/bluetooth | |
| parent | e072745f4adb01b909bd08a0cfc8f79348f4d2c6 (diff) | |
| download | linux-99b0d4b7b09edeacf4542bced5c01239375b51a9.tar.gz linux-99b0d4b7b09edeacf4542bced5c01239375b51a9.tar.bz2 linux-99b0d4b7b09edeacf4542bced5c01239375b51a9.zip | |
Bluetooth: Handle all cases of receipt of RNR-frames into L2CAP
We weren't handling the receipt under SREJ_SENT state table.
It also introduce l2cap_send_srejtail(). It will be used in the nexts
commits too.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Reviewed-by: João Paulo Rechi Vita <jprvita@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/l2cap.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 068edf7704bf..8937a842347a 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -1448,6 +1448,22 @@ static int l2cap_send_ack(struct l2cap_pinfo *pi) return 0; } +static int l2cap_send_srejtail(struct sock *sk) +{ + struct srej_list *tail; + u16 control; + + control = L2CAP_SUPER_SELECT_REJECT; + control |= L2CAP_CTRL_FINAL; + + tail = list_entry(SREJ_LIST(sk)->prev, struct srej_list, list); + control |= tail->tx_seq << L2CAP_CTRL_REQSEQ_SHIFT; + + l2cap_send_sframe(l2cap_pi(sk), control); + + return 0; +} + static inline int l2cap_skbuff_fromiovec(struct sock *sk, struct msghdr *msg, int len, int count, struct sk_buff *skb) { struct l2cap_conn *conn = l2cap_pi(sk)->conn; @@ -3582,11 +3598,19 @@ static inline void l2cap_data_channel_rnrframe(struct sock *sk, u16 rx_control) pi->expected_ack_seq = tx_seq; l2cap_drop_acked_frames(sk); - del_timer(&pi->retrans_timer); - if (rx_control & L2CAP_CTRL_POLL) { - u16 control = L2CAP_CTRL_FINAL; - l2cap_send_rr_or_rnr(pi, control); + if (!(pi->conn_state & L2CAP_CONN_SREJ_SENT)) { + del_timer(&pi->retrans_timer); + if (rx_control & L2CAP_CTRL_POLL) { + u16 control = L2CAP_CTRL_FINAL; + l2cap_send_rr_or_rnr(pi, control); + } + return; } + + if (rx_control & L2CAP_CTRL_POLL) + l2cap_send_srejtail(sk); + else + l2cap_send_sframe(pi, L2CAP_SUPER_RCV_READY); } static inline int l2cap_data_channel_sframe(struct sock *sk, u16 rx_control, struct sk_buff *skb) |