mgcp: Avoid crashing when rtpmap is not complete
The NAT sends an incomplete SDP file for the purpose of informing
the BSC about the remote IP/PORT early. The case of an incomplete
SDP file was not considered. Check if there is a codec and if not
skip it.
TODO: We need to have a better end-point life cycle test.
diff --git a/openbsc/src/libmgcp/mgcp_sdp.c b/openbsc/src/libmgcp/mgcp_sdp.c
index 33837b9..aa4ef30 100644
--- a/openbsc/src/libmgcp/mgcp_sdp.c
+++ b/openbsc/src/libmgcp/mgcp_sdp.c
@@ -159,6 +159,9 @@
char *bts_codec;
char audio_codec[64];
+ if (!codec->codec_name)
+ return 0;
+
/*
* GSM, GSM/8000 and GSM/8000/1 should all be compatible.. let's go
* by name first.