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better checking of incoming SDP, in order to avoid accept things we cannot support.

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This commit is contained in:
Simon Morlat 2014-01-08 12:06:36 +01:00
parent c2ca9f8c08
commit 4e82aa626b
1 changed files with 18 additions and 3 deletions
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21
coreapi/bellesip_sal/sal_op_call.c
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@ -352,21 +352,36 @@ static int extract_sdp(belle_sip_message_t* message,belle_sdp_session_descriptio
return 0;
}
static int is_media_description_acceptable(SalMediaDescription *md){
if (md->n_total_streams==0){
ms_warning("Media description does not define any stream.");
return FALSE;
}
return TRUE;
}
static int process_sdp_for_invite(SalOp* op,belle_sip_request_t* invite) {
belle_sdp_session_description_t* sdp;
int err=0;
SalReason reason;
if (extract_sdp(BELLE_SIP_MESSAGE(invite),&sdp,&reason)==0) {
if (sdp){
op->sdp_offering=FALSE;
op->base.remote_media=sal_media_description_new();
sdp_to_media_description(sdp,op->base.remote_media);
/*make some sanity check about the SDP received*/
if (!is_media_description_acceptable(op->base.remote_media)){
err=-1;
reason=SalReasonNotAcceptable;
}
belle_sip_object_unref(sdp);
}else op->sdp_offering=TRUE; /*INVITE without SDP*/
return 0;
}else{
}else err=-1;
if (err==-1){
sal_call_decline(op,reason,NULL);
return -1;
}
return err;
}
static void process_request_event(void *op_base, const belle_sip_request_event_t *event) {