diff options
Diffstat (limited to 'accel-pppd/ctrl/l2tp/l2tp.c')
| -rw-r--r-- | accel-pppd/ctrl/l2tp/l2tp.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/accel-pppd/ctrl/l2tp/l2tp.c b/accel-pppd/ctrl/l2tp/l2tp.c index 325cfeab..7807aa14 100644 --- a/accel-pppd/ctrl/l2tp/l2tp.c +++ b/accel-pppd/ctrl/l2tp/l2tp.c @@ -668,6 +668,17 @@ static int l2tp_session_send(struct l2tp_sess_t *sess, return 0; } +static int l2tp_session_try_send(struct l2tp_sess_t *sess, + struct l2tp_packet_t *pack) +{ + if (sess->paren_conn->send_queue_len >= sess->paren_conn->peer_rcv_wnd_sz) + return -1; + + l2tp_session_send(sess, pack); + + return 0; +} + static int l2tp_send_StopCCN(struct l2tp_conn_t *conn, uint16_t res, uint16_t err) { @@ -2305,7 +2316,11 @@ static int l2tp_send_ICRQ(struct l2tp_sess_t *sess) goto out_err; } - l2tp_session_send(sess, pack); + if (l2tp_session_try_send(sess, pack) < 0) { + log_session(log_error, sess, "impossible to send ICRQ:" + " too many outstanding packets in send queue\n"); + goto out_err; + } return 0; @@ -2441,7 +2456,11 @@ static int l2tp_send_OCRQ(struct l2tp_sess_t *sess) goto out_err; } - l2tp_session_send(sess, pack); + if (l2tp_session_try_send(sess, pack) < 0) { + log_session(log_error, sess, "impossible to send OCRQ:" + " too many outstanding packets in send queue\n"); + goto out_err; + } return 0; |