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From Andrei Emeltchenko: 

I attached patch to add preferences in SDP for RTP stream detection. By default SDP decodes RTP stream but now I can disable it.

svn path=/trunk/; revision=18080
This commit is contained in:
Anders Broman 2006-05-03 05:07:04 +00:00
parent 437baee301
commit 97419848da
1 changed files with 26 additions and 5 deletions
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31
epan/dissectors/packet-sdp.c
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@ -60,6 +60,9 @@
#include "packet-rtp.h"
#include <epan/rtp_pt.h>
#include <epan/prefs.h>
#include "packet-rtcp.h"
#include "packet-t38.h"
@ -73,6 +76,9 @@ static int sdp_tap = -1;
static int proto_sdp = -1;
/* preference globals */
static gboolean global_sdp_establish_conversation = TRUE;
/* Top level fields */
static int hf_protocol_version = -1;
static int hf_owner = -1;
@ -390,11 +396,14 @@ dissect_sdp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
port = atol(transport_info.media_port[n]);
}
if(transport_info.media_proto[n]!=NULL) {
/* Check if media protocol is RTP */
is_rtp = (strcmp(transport_info.media_proto[n],"RTP/AVP")==0);
/* Check if media protocol is T38 */
is_t38 = ( (strcmp(transport_info.media_proto[n],"UDPTL")==0) || (strcmp(transport_info.media_proto[n],"udptl")==0) );
/* Check if media protocol is RTP
* and stream decoding is enabled in preferences
*/
if(global_sdp_establish_conversation){
is_rtp = (strcmp(transport_info.media_proto[n],"RTP/AVP")==0);
/* Check if media protocol is T38 */
is_t38 = ( (strcmp(transport_info.media_proto[n],"UDPTL")==0) || (strcmp(transport_info.media_proto[n],"udptl")==0) );
}
}
if(transport_info.connection_address!=NULL) {
if(transport_info.connection_type!=NULL) {
@ -1495,11 +1504,23 @@ proto_register_sdp(void)
&ett_sdp_fmtp,
};
module_t *sdp_module;
proto_sdp = proto_register_protocol("Session Description Protocol",
"SDP", "sdp");
proto_register_field_array(proto_sdp, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
/*
* Preferences registration
*/
sdp_module = prefs_register_protocol(proto_sdp, NULL);
prefs_register_bool_preference(sdp_module, "establish_conversation",
"Establish RTP Conversation",
"Specifies that RTP stream is decoded based "
"upon port numbers found in SIP/SDP payload",
&global_sdp_establish_conversation);
/*
* Register the dissector by name, so other dissectors can
* grab it by name rather than just referring to it directly.