[sr-dev] git:4.0: topoh: safety check for SIP messages

[Daniel-Constantin Mierla]

Module: sip-router
Branch: 4.0
Commit: 533f2238d9d14ed8ef0a367ce574aef8052c0452
URL:    http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=533f2238d9d14ed8ef0a367ce574aef8052c0452

Author: Daniel-Constantin Mierla <miconda at gmail.com>
Committer: Daniel-Constantin Mierla <miconda at gmail.com>
Date:   Sun May 26 16:14:51 2013 +0200

topoh: safety check for SIP messages

- received callback can be executed for non-sip messages
- reported by Julia
(cherry picked from commit 352a7dccf2570af857d7e2e50fed600c4762278d)

---

 modules/topoh/topoh_mod.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/modules/topoh/topoh_mod.c b/modules/topoh/topoh_mod.c
index f42b928..73ebf21 100644
--- a/modules/topoh/topoh_mod.c
+++ b/modules/topoh/topoh_mod.c
@@ -204,6 +204,18 @@ int th_prepare_msg(sip_msg_t *msg)
 		return 1;
 	}
 
+	if(msg->first_line.type==SIP_REQUEST)
+	{
+		if(!IS_SIP(msg))
+		{
+			LM_DBG("non sip request message\n");
+			return 1;
+		}
+	} else if(msg->first_line.type!=SIP_REPLY) {
+		LM_DBG("non sip message\n");
+		return 1;
+	}
+
 	if (parse_headers(msg, HDR_EOH_F, 0)==-1)
 	{
 		LM_DBG("parsing headers failed");