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sal_impl.c: discard out of dialog ACK with invalid to-tag

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Gautier Pelloux-Prayer 2016-05-09 12:05:11 +02:00
parent b38e891025
commit 7cf0e80eac
1 changed files with 11 additions and 8 deletions
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19
coreapi/bellesip_sal/sal_impl.c
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@ -241,14 +241,17 @@ static void process_request_event(void *ud, const belle_sip_request_event_t *eve
}
}else{
/*handle the case where we are receiving a request with to tag but it is not belonging to any dialog*/
if (strcmp("INVITE",method)==0 || strcmp("NOTIFY",method)==0) {
belle_sip_header_to_t *to = belle_sip_message_get_header_by_type(req, belle_sip_header_to_t);
if (belle_sip_header_to_get_tag(to) != NULL){
ms_warning("Receiving %s with to-tag but no know dialog here. Rejecting.", method);
resp=belle_sip_response_create_from_request(req,481);
belle_sip_provider_send_response(sal->prov,resp);
return;
}
belle_sip_header_to_t *to = belle_sip_message_get_header_by_type(req, belle_sip_header_to_t);
if ((strcmp("INVITE",method)==0 || strcmp("NOTIFY",method)==0) && (belle_sip_header_to_get_tag(to) != NULL)) {
ms_warning("Receiving %s with to-tag but no know dialog here. Rejecting.", method);
resp=belle_sip_response_create_from_request(req,481);
belle_sip_provider_send_response(sal->prov,resp);
return;
/* by default (eg. when a to-tag is present), out of dialog ACK are automatically
handled in lower layers (belle-sip) but in case it misses, it will be forwarded to us */
} else if (strcmp("ACK",method)==0 && (belle_sip_header_to_get_tag(to) == NULL)) {
ms_warning("Receiving ACK without to-tag but no know dialog here. Ignoring");
return;
}
if (strcmp("INVITE",method)==0) {