1 Dec
2016
1 Dec
'16
12:41 a.m.
Hi,
Kamailio crashes when we handle a 302 redirect and the reply is a 404.
# kamailio -v
version: kamailio 4.4.4 (x86_64/linux)
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE, USE_MCAST,
DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC,
DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER,
USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024,
BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: unknown
compiled with gcc 4.9.2
root@14cn5:/home/joel/files#
This works:
softphone1 > kamailio1 > server1 > 302 >
kamailio1 > server2 > 200 OK
This crashes:
softphone1 > kamailio1 > server1 > 302 >
kamailio1 > server2 > 404 Not Found
I'm attaching debug logs, sip traces and the bt full from backtrace.
IPs:
A.B.C.D = Kamailio IP
E.F.G.H = Softphone IP
I.J.K.L1 = dispatcher node1
I.J.K.L2 = dispatcher node2
In the config we send INVITE requests to a dispatcher group (very simple config).
Then, in failure_route we have:
```
if (t_check_status("302")) {
xlog("L_NOTICE", "Redirecting to TestName: $T_rpl($ct) - M=$rm
R=$ru ID=$ci\n");
get_redirects("*");
route(RELAY);
}
```
And call get redirected to the address of the contact in the 302.
If the new INVITE to that address gets a 200, all works, if that request gets a 404,
Kamailio crashes.
Please let me know if you need more info, this is 100% reproducible on our platform.
Thank you!
Joel.
[backtrace.txt](https://github.com/kamailio/kamailio/files/623307/backtrace.…
[debug.txt](https://github.com/kamailio/kamailio/files/623308/debug.txt)
[sip.txt](https://github.com/kamailio/kamailio/files/623309/sip.txt)
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