bt_cb(skb)->retries++;
control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
+ if (pi->conn_state & L2CAP_CONN_SEND_FBIT) {
+ control |= L2CAP_CTRL_FINAL;
+ pi->conn_state &= ~L2CAP_CONN_SEND_FBIT;
+ }
control |= (pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT)
| (pi->next_tx_seq << L2CAP_CTRL_TXSEQ_SHIFT);
put_unaligned_le16(control, tx_skb->data + L2CAP_HDR_SIZE);
pi->next_tx_seq = (pi->next_tx_seq + 1) % 64;
pi->unacked_frames++;
+ pi->frames_sent++;
if (skb_queue_is_last(TX_QUEUE(sk), skb))
sk->sk_send_head = NULL;
l2cap_pi(sk)->unacked_frames = 0;
l2cap_pi(sk)->buffer_seq = 0;
l2cap_pi(sk)->num_to_ack = 0;
+ l2cap_pi(sk)->frames_sent = 0;
setup_timer(&l2cap_pi(sk)->retrans_timer,
l2cap_retrans_timeout, (unsigned long) sk);
return 0;
}
+static inline void l2cap_send_i_or_rr_or_rnr(struct sock *sk)
+{
+ struct l2cap_pinfo *pi = l2cap_pi(sk);
+ u16 control = 0;
+
+ pi->frames_sent = 0;
+ pi->conn_state |= L2CAP_CONN_SEND_FBIT;
+
+ control |= pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+
+ if (pi->conn_state & L2CAP_CONN_LOCAL_BUSY) {
+ control |= L2CAP_SUPER_RCV_NOT_READY | L2CAP_CTRL_FINAL;
+ l2cap_send_sframe(pi, control);
+ pi->conn_state &= ~L2CAP_CONN_SEND_FBIT;
+ }
+
+ if (pi->conn_state & L2CAP_CONN_REMOTE_BUSY && pi->unacked_frames > 0)
+ __mod_retrans_timer();
+
+ l2cap_ertm_send(sk);
+
+ if (!(pi->conn_state & L2CAP_CONN_LOCAL_BUSY) &&
+ pi->frames_sent == 0) {
+ control |= L2CAP_SUPER_RCV_READY;
+ if (pi->conn_state & L2CAP_CONN_SEND_FBIT) {
+ control |= L2CAP_CTRL_FINAL;
+ pi->conn_state &= ~L2CAP_CONN_SEND_FBIT;
+ }
+ l2cap_send_sframe(pi, control);
+ }
+}
+
static void l2cap_add_to_srej_queue(struct sock *sk, struct sk_buff *skb, u8 tx_seq, u8 sar)
{
struct sk_buff *next_skb;
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);
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) {
- u16 control = L2CAP_CTRL_FINAL;
- control |= L2CAP_SUPER_RCV_READY |
- (pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT);
- l2cap_send_sframe(l2cap_pi(sk), control);
+ l2cap_send_i_or_rr_or_rnr(sk);
pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
} else if (rx_control & L2CAP_CTRL_FINAL) {
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);