Module: kamailio Branch: master Commit: a1148307a5155c8a6806ae94c0c982200d052dc5 URL: https://github.com/kamailio/kamailio/commit/a1148307a5155c8a6806ae94c0c9822… Author: Yasin CANER &lt;caner_yaso(a)hotmail.com&gt; Committer: GitHub &lt;noreply(a)github.com&gt; Date: 2019-01-17T10:56:31+03:00 ims_registrar_pcscf : added a condition for subscribiton about sos param if there is a sos parameter on Contact header on saving state in P-CSCF ,P-CSCF dont subscribe to S-CSCF for reg-events. 3GPP TS 24.229 5.2.10.1 Upon receiving the 200 (OK) response to the REGISTER request that completes the emergency registration, as identified by the presence of the "sos" SIP URI parameter in the Contact header field of the 200 (OK) response, the P-CSCF shall not subscribe to the registration event package for any emergency public user identity specified in the REGISTER request. --- Modified: src/modules/ims_registrar_pcscf/save.c --- Diff: https://github.com/kamailio/kamailio/commit/a1148307a5155c8a6806ae94c0c9822… Patch: https://github.com/kamailio/kamailio/commit/a1148307a5155c8a6806ae94c0c9822… --- diff --git a/src/modules/ims_registrar_pcscf/save.c b/src/modules/ims_registrar_pcscf/save.c index 39dfe4d589..0789a52bfb 100644 --- a/src/modules/ims_registrar_pcscf/save.c +++ b/src/modules/ims_registrar_pcscf/save.c @@ -387,7 +387,9 @@ int save(struct sip_msg* _m, udomain_t* _d, int _cflags) { str *service_routes=0; int num_service_routes = 0; pv_elem_t *presentity_uri_pv; - + int contact_has_sos=-1; + contact_t* chi; //contact header information + struct hdr_field* h; //get request from reply req = get_request_from_reply(_m); if (!req) { @@ -395,11 +397,34 @@ int save(struct sip_msg* _m, udomain_t* _d, int _cflags) { goto error; } expires_hdr = cscf_get_expires_hdr(_m, 0); - cb = cscf_parse_contacts(_m); + + if((parse_headers(_m, HDR_CONTACT_F, 0) == -1) || !_m->contact) { + LM_ERR("cannot get the Contact header from the SIP message in saving action in PCSCF\n"); + goto error; + } + + if(!_m->contact->parsed && parse_contact(_m->contact) < 0) { + LM_ERR("Couldn t parse Contact Header \n"); + goto error; + } + + cb = ((contact_body_t *)_m->contact->parsed); if (!cb || (!cb->contacts && !cb->star)) { LM_DBG("No contact headers and not *\n"); goto error; } + + for (h = _m->contact; h; h = h->next) { + if (h->type == HDR_CONTACT_T && h->parsed) { + for (chi = ((contact_body_t*) h->parsed)->contacts; chi; chi = chi->next) { + contact_has_sos = cscf_get_sos_uri_param(chi->uri); + if(contact_has_sos!=-1){ + break; + } + } + } + } + cscf_get_p_associated_uri(_m, &public_ids, &num_public_ids, 1); service_routes = cscf_get_service_route(_m, &num_service_routes, 1); @@ -409,7 +434,7 @@ int save(struct sip_msg* _m, udomain_t* _d, int _cflags) { goto error; } - if(subscribe_to_reginfo == 1){ + if(subscribe_to_reginfo == 1 && contact_has_sos < 1){ //use the first p_associated_uri - i.e. the default IMPU LM_DBG("Subscribe to reg event for primary p_associated_uri");