On Nov 15, 2011 at 14:43, Dmitry Petrakoff <di...@dprs-consulting.com> wrote:
> Hi List!
>
> I'm running Kamailio for about 1 year without any serious problems.
> When it works with UDP only, it runs perfectly well for us. Without any
> major issues.
>
> But now we have a customer who wants to connect Lync to our network.
> Unfortunately, Lync does not support UDP for SIP signalling, so we tried
> to teach kamailio to send SIP messages via TCP.
> And getting strange error:
>
[...]
> 10(36629) ERROR: <core> [tcp_main.c:2754]: 10.198.3.100:5060: connect &
> send for 0x28d988ac failed: Socket is not connected (57)
> 10(36629) DEBUG: <core> [tcp_main.c:2955]: tcpconn_chld_put: destroying
> connection 0x28d988ac (1, -1) flags 0060
> 10(36629) ERROR: tm [../../forward.h:170]: msg_send: ERROR: tcp_send failed
Could you try the attached patch and report back if it works?
(I couldn't reproduce it on my ancient FreeBSD 7.1)
I think the problem is that newer FreeBSD versions return ENOTCONN when
attempting to send on a not yet fully connected socket (instead of
EAGAIN).
Andrei
[...]
>From aa073d37a1433cad617a5f93c28a0a7c7d2ca702 Mon Sep 17 00:00:00 2001
From: Andrei Pelinescu-Onciul <and...@iptel.org>
Date: Tue, 22 Nov 2011 12:55:39 +0100
Subject: [PATCH] tcp: fix for ENOTCONN on newer FreeBSDs
Newer FreeBSDs return ENOTCONN instead of EAGAIN/EWOULDBLOCK when
trying to send on a non-blocking socket which is not yet fully
connected (the connect is still pending).
Reported-by: Dmitry Petrakoff dimon dprs-consulting com
---
tcp_main.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/tcp_main.c b/tcp_main.c
index 5aa8638..b1635ff 100644
--- a/tcp_main.c
+++ b/tcp_main.c
@@ -2693,7 +2693,10 @@ static int tcpconn_1st_send(int fd, struct tcp_connection* c,
n=_tcpconn_write_nb(fd, c, buf, len);
if (unlikely(n<(int)len)){
- if ((n>=0) || errno==EAGAIN || errno==EWOULDBLOCK){
+ /* on EAGAIN or ENOTCONN return success.
+ ENOTCONN appears on newer FreeBSD versions (non-blocking socket,
+ connect() & send immediately) */
+ if ((n>=0) || errno==EAGAIN || errno==EWOULDBLOCK || errno==ENOTCONN){
DBG("pending write on new connection %p "
" (%d/%d bytes written)\n", c, n, len);
if (unlikely(n<0)) n=0;
--
1.7.2.1
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