/**
* Handle third party registration
* @param msg - the SIP REGISTER message
* @param m - the isc_match that matched with info about where to forward it
* @param mark - the isc_mark that should be used to mark the message
* @returns #ISC_RETURN_TRUE if allowed, #ISC_RETURN_FALSE if not
*/
int isc_third_party_reg(struct sip_msg *msg, isc_match *m,isc_mark *mark)
{
r_third_party_registration r;
int expires=0;
str req_uri ={0,0};
str to ={0,0};
str pvni ={0,0};
str pani ={0,0};
str cv ={0,0};
struct hdr_field *hdr;
LOG(L_INFO,"INFO:"M_NAME":isc_third_party_reg: Enter\n");
/* Set Request Uri to IFC matching server name */
req_uri.len = m->server_name.len;
req_uri.s = m->server_name.s;
/* Get To header*/
to = cscf_get_public_identity(msg);
/*TODO - check if the min/max expires is in the acceptable limits
* this does not work correctly if the user has multiple contacts
* and register/deregisters them individually!!!
*/
expires = cscf_get_max_expires(msg);
/* Get P-Visited-Network-Id header */
pvni = cscf_get_visited_network_id(msg, &hdr);
/* Get P-Access-Network-Info header */
pani = cscf_get_access_network_info(msg, &hdr);
/* Get P-Charging-Vector header */
/* Just forward the charging header received from P-CSCF */
/* Todo: implement also according to TS 24.229, chap 5.4.1.7 */
cv = cscf_get_charging_vector(msg, &hdr);
if (req_uri.s){
memset(&r,0,sizeof(r_third_party_registration));
r.req_uri = req_uri;
r.to = to;
r.from = isc_my_uri_sip;
r.pvni = pvni;
r.pani = pani;
r.cv = cv;
r.service_info = m->service_info;
if (expires<=0) r_send_third_party_reg(&r,0);
else r_send_third_party_reg(&r,expires+isc_expires_grace);
return ISC_RETURN_TRUE;
}else{
return ISC_RETURN_FALSE;
}
}
/**
* Handle third party registration
* @param msg - the SIP REGISTER message
* @param m - the isc_match that matched with info about where to forward it
* @param mark - the isc_mark that should be used to mark the message
* @returns #ISC_RETURN_TRUE if allowed, #ISC_RETURN_FALSE if not
*/
int isc_third_party_reg(struct sip_msg *msg, isc_match *m, isc_mark *mark, udomain_t* d) {
r_third_party_registration r;
str path, path_received;
int expires = 0;
str req_uri = {0, 0};
str to = {0, 0};
str pvni = {0, 0};
str pani = {0, 0};
str cv = {0, 0};
str s = {0, 0};
impurecord_t *p;
struct hdr_field *hdr;
LM_DBG("isc_third_party_reg: Enter\n");
/* Set Request Uri to IFC matching server name */
req_uri.len = m->server_name.len;
req_uri.s = m->server_name.s;
/* Get To header*/
to = cscf_get_public_identity(msg);
if (cscf_get_originating_user(msg, &s)) {
isc_ulb.lock_udomain(d, &s);
if ( isc_ulb.get_impurecord(d,&s,&p) != 0) {
isc_ulb.unlock_udomain(d, &s);
LM_ERR("Failed to get IMPU domain from usrloc\n");
goto no_pai;
}
if ( build_p_associated_uri(p->s) != 0) {
isc_ulb.unlock_udomain(d, &s);
LM_ERR("Failed to build P-Associated URI for 3rd party reg\n");
goto no_pai;
}
isc_ulb.unlock_udomain(d, &s);
}
/*TODO - check if the min/max expires is in the acceptable limits
* this does not work correctly if the user has multiple contacts
* and register/deregisters them individually!!!
*/
no_pai:
expires = cscf_get_max_expires(msg, 0);
/* Get P-Visited-Network-Id header */
pvni = cscf_get_visited_network_id(msg, &hdr);
/* Get P-Access-Network-Info header */
pani = cscf_get_access_network_info(msg, &hdr);
if (build_path_vector(msg, &path, &path_received) < 0) {
LM_ERR("Failed to parse PATH header for third-party reg\n");
return ISC_RETURN_FALSE;
}
LM_DBG("PATH header in REGISTER is [%.*s]\n", path.len, path.s);
/* Get P-Charging-Vector header */
/* Just forward the charging header received from P-CSCF */
/* Todo: implement also according to TS 24.229, chap 5.4.1.7 */
cv = cscf_get_charging_vector(msg, &hdr);
if (req_uri.s) {
memset(&r, 0, sizeof (r_third_party_registration));
r.req_uri = req_uri;
r.to = to;
r.from = isc_my_uri_sip;
r.pvni = pvni;
r.pani = pani;
r.cv = cv;
if (m->service_info.s && m->service_info.len) {
r.body.content_type = CT_SERVICE_INFO;
r.body.content = m->service_info;
} else if (m->include_register_request) {
r.body.content_type = CT_REGISTER_REQ;
r.body.content.s = msg->first_line.u.request.method.s;
r.body.content.len = msg->len;
} else if (m->include_register_response) {
struct bookmark dummy_bm;
r.body.content_type = CT_REGISTER_RESP;
r.body.content.s = build_res_buf_from_sip_req(200, ®_resp_200OK, 0, msg, (unsigned int*)&r.body.content.len, &dummy_bm);
if (!r.body.content.s) {
LM_DBG("response building failed for body of third party register request");
r.body.content_type = CT_NONE;
}
} else {
r.body.content_type = CT_NONE;
}
r.path = path;
if (expires <= 0)
r_send_third_party_reg(&r, 0);
else
r_send_third_party_reg(&r, expires + isc_expires_grace);
return ISC_RETURN_TRUE;
} else {
return ISC_RETURN_FALSE;
}
}
