Module: kamailio
Branch: master
Commit: 1ea49ee2d4eced22dd76f7f4bc02467360b9ef16
URL: 
https://github.com/kamailio/kamailio/commit/1ea49ee2d4eced22dd76f7f4bc02467360b9ef16

Author: Victor Seva <linuxman...@torreviejawireless.org>
Committer: Victor Seva <linuxman...@torreviejawireless.org>
Date: 2016-09-20T17:52:03+02:00

sca: fix core when HDR_CSEQ not parsed

> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  0x00007f1820227bae in sca_call_info_update (msg=0x7f1828635930, p1=0x0, 
> p2=0x0, p3=0x7f1828635930 "\001") at sca_call_info.c:1845
> 1845                  LM_DBG("BUG: sca module does not support Call-Info 
> headers "
> (gdb) p msg->cseq
> $1 = (struct hdr_field *) 0x0
> (gdb) p msg->first_line.u.request->method
> $2 = {
>  s = 0xa33540 <buf> "SUBSCRIBE sip:30@127.0.0.1:5060 SIP/2.0\r\nVia: 
> SIP/2.0/UDP 172.17.0.2:5061;branch=z9hG4bK-2884-1-0\r\nFrom: sipp 
> <sip:sipp@172.17.0.2:5061>;tag=2884SIPpTag001\r\nTo: sut 
> <sip:30@127.0.0.1:5060>\r\nCall-ID: 1"..., len = 9}

---

Modified: modules/sca/sca_call_info.c

---

Diff:  
https://github.com/kamailio/kamailio/commit/1ea49ee2d4eced22dd76f7f4bc02467360b9ef16.diff
Patch: 
https://github.com/kamailio/kamailio/commit/1ea49ee2d4eced22dd76f7f4bc02467360b9ef16.patch

---

diff --git a/modules/sca/sca_call_info.c b/modules/sca/sca_call_info.c
index 8f8ca7e..d5586cb 100644
--- a/modules/sca/sca_call_info.c
+++ b/modules/sca/sca_call_info.c
@@ -1842,6 +1842,12 @@ int sca_call_info_update(sip_msg_t *msg, char *p1, char 
*p2, char *p3)
                }
        }
        if (i >= n_dispatch) {
+               if(msg->cseq==NULL && ((parse_headers(msg, HDR_CSEQ_F, 0)==-1) 
||
+                       (msg->cseq==NULL)))
+               {
+                       LM_ERR("no CSEQ header\n");
+                       return (1);
+               }
                LM_DBG("BUG: sca module does not support Call-Info headers "
                                "in %.*s requests\n", 
STR_FMT(&get_cseq(msg)->method));
                return (1);


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