/**
* init module function
*/
static int mod_init(void)
{
LM_DBG("initialize module...\n");
bind_pua_t bind_pua;
bind_usrloc_t bind_usrloc;
if(server_address.s== NULL)
{
LM_ERR("compulsory 'server_address' parameter not set!");
return -1;
}
server_address.len= strlen(server_address.s);
if(presence_server.s)
{
presence_server.len= strlen(presence_server.s);
}
if(default_domain.s)
{
default_domain.len= strlen(default_domain.s);
}
if(header_name.s == NULL )
{
LM_ERR("header_name parameter not set\n");
return -1;
}
header_name.len= strlen(header_name.s);
if(bla_outbound_proxy.s == NULL )
{
LM_DBG("No outbound proxy set\n");
}
else
bla_outbound_proxy.len= strlen(bla_outbound_proxy.s);
bind_pua= (bind_pua_t)find_export("bind_pua", 1,0);
if (!bind_pua)
{
LM_ERR("Can't bind pua\n");
return -1;
}
if (bind_pua(&pua) < 0)
{
LM_ERR("Can't bind pua\n");
return -1;
}
if(pua.send_publish == NULL)
{
LM_ERR("Could not import send_publish\n");
return -1;
}
pua_send_publish= pua.send_publish;
if(pua.send_subscribe == NULL)
{
LM_ERR("Could not import send_subscribe\n");
return -1;
}
pua_send_subscribe= pua.send_subscribe;
if(pua.is_dialog == NULL)
{
LM_ERR("Could not import send_subscribe\n");
return -1;
}
pua_is_dialog= pua.is_dialog;
if(pua.register_puacb== NULL)
{
LM_ERR("Could not import register callback\n");
return -1;
}
bind_usrloc = (bind_usrloc_t)find_export("ul_bind_usrloc", 1, 0);
if (!bind_usrloc)
{
LM_ERR("Can't bind usrloc\n");
return -1;
}
if (bind_usrloc(&ul) < 0)
{
LM_ERR("Can't bind usrloc\n");
return -1;
}
if(ul.register_ulcb == NULL)
{
LM_ERR("Could not import ul_register_ulcb\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_INSERT, bla_cb , 0)< 0)
{
LM_ERR("can not register callback for"
" insert\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_EXPIRE, bla_cb, 0)< 0)
{
LM_ERR("can not register callback for"
" insert\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_UPDATE, bla_cb, 0)< 0)
{
LM_ERR("can not register callback for"
" update\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_DELETE, bla_cb, 0)< 0)
{
LM_ERR("can not register callback for"
" delete\n");
return -1;
}
return 0;
}
static int mod_init(void) {
pv_spec_t avp_spec;
str s;
bind_usrloc_t bind_usrloc;
qvalue_t dq;
callback_singleton = shm_malloc(sizeof (int));
*callback_singleton = 0;
/*build the required strings */
scscf_serviceroute_uri_str.s =
(char*) pkg_malloc(orig_prefix.len + scscf_name_str.len);
if (!scscf_serviceroute_uri_str.s) {
LM_ERR("Unable to allocate memory for service route uri\n");
return -1;
}
if (contact_expires_buffer_percentage < 0 || contact_expires_buffer_percentage > 90) {
LM_ERR("contact expires percentage not valid, must be >0 and <=90");
return -1;
}
memcpy(scscf_serviceroute_uri_str.s, orig_prefix.s, orig_prefix.len);
scscf_serviceroute_uri_str.len = orig_prefix.len;
if (scscf_name_str.len > 4
&& strncasecmp(scscf_name_str.s, "sip:", 4) == 0) {
memcpy(scscf_serviceroute_uri_str.s + scscf_serviceroute_uri_str.len,
scscf_name_str.s + 4, scscf_name_str.len - 4);
scscf_serviceroute_uri_str.len += scscf_name_str.len - 4;
} else {
memcpy(scscf_serviceroute_uri_str.s + scscf_serviceroute_uri_str.len,
scscf_name_str.s, scscf_name_str.len);
scscf_serviceroute_uri_str.len += scscf_name_str.len;
}
pv_tmx_data_init();
/* </build required strings> */
#ifdef STATISTICS
/* register statistics */
if (register_module_stats(exports.name, mod_stats) != 0) {
LM_ERR("failed to register core statistics\n");
return -1;
}
if (!register_stats()) {
LM_ERR("Unable to register statistics\n");
return -1;
}
#endif
/*register space for notification processors*/
register_procs(notification_processes);
cfg_register_child(notification_processes);
/* bind the SL API */
if (sl_load_api(&slb) != 0) {
LM_ERR("cannot bind to SL API\n");
return -1;
}
/* load the TM API */
if (load_tm_api(&tmb) != 0) {
LM_ERR("can't load TM API\n");
return -1;
}
/* load the CDP API */
if (load_cdp_api(&cdpb) != 0) {
LM_ERR("can't load CDP API\n");
return -1;
}
cdp_avp = load_cdp_avp();
if (!cdp_avp) {
LM_ERR("can't load CDP_AVP API\n");
return -1;
}
if (cfg_declare("registrar", registrar_cfg_def, &default_registrar_cfg,
cfg_sizeof(registrar), ®istrar_cfg)) {
LM_ERR("Fail to declare the configuration\n");
return -1;
}
if (rcv_avp_param && *rcv_avp_param) {
s.s = rcv_avp_param;
s.len = strlen(s.s);
if (pv_parse_spec(&s, &avp_spec) == 0 || avp_spec.type != PVT_AVP) {
LM_ERR("malformed or non AVP %s AVP definition\n", rcv_avp_param);
return -1;
}
if (pv_get_avp_name(0, &avp_spec.pvp, &rcv_avp_name, &rcv_avp_type)
!= 0) {
LM_ERR("[%s]- invalid AVP definition\n", rcv_avp_param);
return -1;
}
} else {
rcv_avp_name.n = 0;
rcv_avp_type = 0;
}
if (aor_avp_param && *aor_avp_param) {
s.s = aor_avp_param;
s.len = strlen(s.s);
if (pv_parse_spec(&s, &avp_spec) == 0 || avp_spec.type != PVT_AVP) {
LM_ERR("malformed or non AVP %s AVP definition\n", aor_avp_param);
return -1;
}
if (pv_get_avp_name(0, &avp_spec.pvp, &aor_avp_name, &aor_avp_type)
!= 0) {
LM_ERR("[%s]- invalid AVP definition\n", aor_avp_param);
return -1;
}
} else {
aor_avp_name.n = 0;
aor_avp_type = 0;
}
if (reg_callid_avp_param && *reg_callid_avp_param) {
s.s = reg_callid_avp_param;
s.len = strlen(s.s);
if (pv_parse_spec(&s, &avp_spec) == 0 || avp_spec.type != PVT_AVP) {
LM_ERR("malformed or non AVP %s AVP definition\n", reg_callid_avp_param);
return -1;
}
if (pv_get_avp_name(0, &avp_spec.pvp, ®_callid_avp_name,
®_callid_avp_type) != 0) {
LM_ERR("[%s]- invalid AVP definition\n", reg_callid_avp_param);
return -1;
}
} else {
reg_callid_avp_name.n = 0;
reg_callid_avp_type = 0;
}
bind_usrloc = (bind_usrloc_t) find_export("ul_bind_usrloc", 1, 0);
if (!bind_usrloc) {
LM_ERR("can't bind usrloc\n");
return -1;
}
/* Normalize default_q parameter */
dq = cfg_get(registrar, registrar_cfg, default_q);
if (dq != Q_UNSPECIFIED) {
if (dq > MAX_Q) {
LM_DBG("default_q = %d, lowering to MAX_Q: %d\n", dq, MAX_Q);
dq = MAX_Q;
} else if (dq < MIN_Q) {
LM_DBG("default_q = %d, raising to MIN_Q: %d\n", dq, MIN_Q);
dq = MIN_Q;
}
}
cfg_get(registrar, registrar_cfg, default_q) = dq;
if (bind_usrloc(&ul) < 0) {
return -1;
}
/*Register for callback of URECORD being deleted - so we can send a SAR*/
if (ul.register_ulcb == NULL) {
LM_ERR("Could not import ul_register_ulcb\n");
return -1;
}
if (ul.register_ulcb(0, 0, UL_IMPU_INSERT, ul_impu_inserted, 0) < 0) {
LM_ERR("can not register callback for insert\n");
return -1;
}
if (sock_hdr_name.s) {
if (sock_hdr_name.len == 0 || sock_flag == -1) {
LM_WARN("empty sock_hdr_name or sock_flag no set -> reseting\n");
sock_hdr_name.len = 0;
sock_flag = -1;
}
} else if (sock_flag != -1) {
LM_WARN("sock_flag defined but no sock_hdr_name -> reseting flag\n");
sock_flag = -1;
}
/* fix the flags */
sock_flag = (sock_flag != -1) ? (1 << sock_flag) : 0;
tcp_persistent_flag =
(tcp_persistent_flag != -1) ? (1 << tcp_persistent_flag) : 0;
/* init the registrar notifications */
if (!notify_init()) return -1;
/* register the registrar notifications timer */
//Currently we do not use this - we send notifies immediately
//if (register_timer(notification_timer, notification_list, 5) < 0) return -1;
return 0;
}
void async_aar_reg_callback(int is_timeout, void *param, AAAMessage *aaa, long elapsed_msecs) {
struct cell *t = 0;
pcontact_t* pcontact;
unsigned int cdp_result;
struct pcontact_info ci;
udomain_t* domain_t;
int finalReply = 0;
AAASession *auth = 0;
rx_authsessiondata_t* p_session_data = 0;
int result = CSCF_RETURN_ERROR;
pcontact_info_t contact_info;
LM_DBG("Received AAR callback\n");
saved_transaction_local_t* local_data = (saved_transaction_local_t*) param;
saved_transaction_t* data = local_data->global_data;
domain_t = data->domain;
int is_rereg = local_data->is_rereg;
//before we do anything else, lets decrement the reference counter on replies
lock_get(data->lock);
data->answers_not_received--;
if (data->answers_not_received <= 0) {
finalReply = 1;
}
if (data->ignore_replies) { //there was obv. a subsequent error AFTER we had sent one/more AAR's - so we can ignore these replies and just free memory
free_saved_transaction_data(local_data);
if (finalReply) {
free_saved_transaction_global_data(data);
}
return;
}
lock_release(data->lock);
LM_DBG("received answer and we are waiting for [%d] answers so far failures flag is [%d]\n", data->answers_not_received, data->failed);
if (tmb.t_lookup_ident(&t, data->tindex, data->tlabel) < 0) {
LM_ERR("t_continue: transaction not found\n");
goto error;
}
//we have T, lets restore our state (esp. for AVPs)
set_avp_list(AVP_TRACK_FROM | AVP_CLASS_URI, &t->uri_avps_from);
set_avp_list(AVP_TRACK_TO | AVP_CLASS_URI, &t->uri_avps_to);
set_avp_list(AVP_TRACK_FROM | AVP_CLASS_USER, &t->user_avps_from);
set_avp_list(AVP_TRACK_TO | AVP_CLASS_USER, &t->user_avps_to);
set_avp_list(AVP_TRACK_FROM | AVP_CLASS_DOMAIN, &t->domain_avps_from);
set_avp_list(AVP_TRACK_TO | AVP_CLASS_DOMAIN, &t->domain_avps_to);
if (is_timeout != 0) {
LM_ERR("Error timeout when sending AAR message via CDP\n");
counter_inc(ims_qos_cnts_h.registration_aar_timeouts);
goto error;
}
if (!aaa) {
LM_ERR("Error sending message via CDP\n");
goto error;
}
counter_inc(ims_qos_cnts_h.registration_aars);
counter_add(ims_qos_cnts_h.registration_aar_response_time, elapsed_msecs);
counter_inc(ims_qos_cnts_h.registration_aar_replies_received);
/* Process the response to AAR, retrieving result code and associated Rx session ID */
if (rx_process_aaa(aaa, &cdp_result) < 0) {
LM_ERR("Failed to process AAA from PCRF\n"); //puri.host.len, puri.host.s);
goto error;
}
if (cdp_result >= 2000 && cdp_result < 3000) {
counter_inc(ims_qos_cnts_h.successful_registration_aars);
if (is_rereg) {
LM_DBG("this is a re-registration, therefore we don't need to do anything except know that the the subscription was successful\n");
result = CSCF_RETURN_TRUE;
create_return_code(result);
goto done;
}
//need to set Rx auth data to say this session has been successfully opened
//This is used elsewhere to prevent acting on termination events when the session has not been opened
//getting auth session
auth = cdpb.AAAGetAuthSession(aaa->sessionId->data);
if (!auth) {
LM_DBG("Could not get Auth Session for session id: [%.*s]\n", aaa->sessionId->data.len, aaa->sessionId->data.s);
goto error;
}
//getting session data
p_session_data = (rx_authsessiondata_t*) auth->u.auth.generic_data;
if (!p_session_data) {
LM_DBG("Could not get session data on Auth Session for session id: [%.*s]\n", aaa->sessionId->data.len, aaa->sessionId->data.s);
if (auth) cdpb.AAASessionsUnlock(auth->hash);
goto error;
}
p_session_data->session_has_been_opened = 1;
counter_inc(ims_qos_cnts_h.active_registration_rx_sessions);
if (auth) cdpb.AAASessionsUnlock(auth->hash);
LM_DBG("Success, received code: [%i] from PCRF for AAR request (contact: [%.*s]), (auth session id: %.*s)\n",
cdp_result, local_data->contact.len, local_data->contact.s,
local_data->auth_session_id.len, local_data->auth_session_id.s);
LM_DBG("Registering for Usrloc callbacks on DELETE\n");
ul.lock_udomain(domain_t, &local_data->via_host, local_data->via_port, local_data->via_proto);
contact_info.received_host = local_data->recv_host;
contact_info.received_port = local_data->recv_port;
contact_info.received_proto = local_data->recv_proto;
contact_info.searchflag = (1 << SEARCH_RECEIVED);
contact_info.aor = local_data->contact;
contact_info.via_host = local_data->via_host;
contact_info.via_port = local_data->via_port;
contact_info.via_prot = local_data->via_proto;
if (ul.get_pcontact(domain_t, &contact_info, &pcontact) != 0) {
LM_ERR("Shouldn't get here, can't find contact....\n");
ul.unlock_udomain(domain_t, &local_data->via_host, local_data->via_port, local_data->via_proto);
goto error;
}
//at this point we have the contact
/*set the contact state to say we have succesfully done ARR for register and that we dont need to do it again
* for the duration of the registration.
* */
if (ul.update_rx_regsession(domain_t, &local_data->auth_session_id, pcontact) != 0) {
LM_ERR("unable to update pcontact......\n");
ul.unlock_udomain(domain_t, &local_data->via_host, local_data->via_port, local_data->via_proto);
goto error;
}
memset(&ci, 0, sizeof (struct pcontact_info));
ci.reg_state = PCONTACT_REG_PENDING_AAR;
ci.num_service_routes = 0;
ci.num_public_ids = 0;
LM_DBG("impu: [%.*s] updating status to PCONTACT_REG_PENDING\n", pcontact->aor.len, pcontact->aor.s);
ul.update_pcontact(domain_t, &ci, pcontact);
//register for callbacks on contact
ul.register_ulcb(pcontact, PCSCF_CONTACT_DELETE | PCSCF_CONTACT_EXPIRE,
callback_pcscf_contact_cb, NULL);
ul.unlock_udomain(domain_t, &local_data->via_host, local_data->via_port, local_data->via_proto);
result = CSCF_RETURN_TRUE;
} else {
LM_DBG("Received negative reply from PCRF for AAR Request\n");
counter_inc(ims_qos_cnts_h.failed_registration_aars);
result = CSCF_RETURN_FALSE;
goto error;
}
//set success response code AVP
create_return_code(result);
goto done;
error:
//set failure response code
create_return_code(result);
done:
if (t) tmb.unref_cell(t);
//free memory
if (aaa)
cdpb.AAAFreeMessage(&aaa);
if (finalReply) {
tmb.t_continue(data->tindex, data->tlabel, data->act);
free_saved_transaction_global_data(data);
}
free_saved_transaction_data(local_data);
}
int ipsec_create(struct sip_msg* m, udomain_t* d)
{
pcontact_t* pcontact = NULL;
struct pcontact_info ci;
int ret = IPSEC_CMD_FAIL; // FAIL by default
// Find the contact
if(fill_contact(&ci, m) != 0) {
LM_ERR("Error filling in contact data\n");
return ret;
}
ul.lock_udomain(d, &ci.via_host, ci.via_port, ci.via_prot);
if (ul.get_pcontact(d, &ci, &pcontact) != 0) {
LM_ERR("Contact doesn't exist\n");
goto cleanup;
}
// Get security parameters
if(pcontact->security_temp == NULL) {
LM_ERR("No security parameters found in contact\n");
goto cleanup;
}
if(pcontact->security_temp->type != SECURITY_IPSEC ) {
LM_ERR("Unsupported security type: %d\n", pcontact->security_temp->type);
goto cleanup;
}
ipsec_t* s = pcontact->security_temp->data.ipsec;
if(update_contact_ipsec_params(s, m) != 0) {
goto cleanup;
}
if(create_ipsec_tunnel(ci.received_host, s) != 0) {
goto cleanup;
}
// TODO: Save security_tmp to security!!!!!
if (ul.update_pcontact(d, &ci, pcontact) != 0) {
LM_ERR("Error updating contact\n");
goto cleanup;
}
// Destroy the tunnel, if the contact expires
if(ul.register_ulcb(pcontact, PCSCF_CONTACT_EXPIRE|PCSCF_CONTACT_DELETE, on_expire, NULL) != 1) {
LM_ERR("Error subscribing for contact\n");
goto cleanup;
}
if(add_supported_secagree_header(m) != 0) {
goto cleanup;
}
if(add_security_server_header(m, s) != 0) {
goto cleanup;
}
ret = IPSEC_CMD_SUCCESS; // all good, set ret to SUCCESS, and exit
cleanup:
// Do not free str* sec_header! It will be freed in data_lump.c -> free_lump()
ul.unlock_udomain(d, &ci.via_host, ci.via_port, ci.via_prot);
pkg_free(ci.received_host.s);
return ret;
}
/**
* init module function
*/
static int mod_init(void)
{
bind_usrloc_t bind_usrloc;
bind_pua_t bind_pua;
LM_DBG("initializing module ...\n");
if(default_domain.s == NULL )
{
LM_ERR("default domain parameter not set\n");
return -1;
}
default_domain.len= strlen(default_domain.s);
if(pres_prefix.s == NULL )
{
LM_DBG("No pres_prefix configured\n");
}
else
pres_prefix.len= strlen(pres_prefix.s);
if(presence_server.s)
{
presence_server.len= strlen(presence_server.s);
}
bind_usrloc = (bind_usrloc_t)find_export("ul_bind_usrloc", 1, 0);
if (!bind_usrloc)
{
LM_ERR("Can't bind usrloc\n");
return -1;
}
if (bind_usrloc(&ul) < 0)
{
LM_ERR("Can't bind usrloc\n");
return -1;
}
if(ul.register_ulcb == NULL)
{
LM_ERR("Could not import ul_register_ulcb\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_INSERT, ul_publish, 0)< 0)
{
LM_ERR("can not register callback for"
" insert\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_EXPIRE, ul_publish, 0)< 0)
{
LM_ERR("can not register callback for"
" expire\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_UPDATE, ul_publish, 0)< 0)
{
LM_ERR("can not register callback for update\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_DELETE, ul_publish, 0)< 0)
{
LM_ERR("can not register callback for delete\n");
return -1;
}
bind_pua= (bind_pua_t)find_export("bind_pua", 1,0);
if (!bind_pua)
{
LM_ERR("Can't bind pua\n");
return -1;
}
if (bind_pua(&pua) < 0)
{
LM_ERR("Can't bind pua\n");
return -1;
}
if(pua.send_publish == NULL)
{
LM_ERR("Could not import send_publish\n");
return -1;
}
pua_send_publish= pua.send_publish;
if(pua.send_subscribe == NULL)
{
LM_ERR("Could not import send_subscribe\n");
return -1;
}
pua_send_subscribe= pua.send_subscribe;
/* register post-script pua_unset_publish unset function */
if(register_script_cb(pua_unset_publish, POST_SCRIPT_CB|REQ_TYPE_CB, 0)<0)
{
LM_ERR("failed to register POST request callback\n");
return -1;
}
return 0;
}
/*! \brief
* init module function
*/
static int mod_init(void)
{
bind_usrloc_t bind_usrloc;
bind_pua_t bind_pua;
if(!default_domain.s || default_domain.len<=0)
{
LM_ERR("default domain parameter not set\n");
return -1;
}
if(!pres_prefix.s || pres_prefix.len<=0)
LM_DBG("No pres_prefix configured\n");
bind_usrloc = (bind_usrloc_t)find_export("ul_bind_usrloc", 1, 0);
if (!bind_usrloc)
{
LM_ERR("Can't bind usrloc\n");
return -1;
}
if (bind_usrloc(&ul) < 0)
{
LM_ERR("Can't bind usrloc\n");
return -1;
}
if(ul.register_ulcb == NULL)
{
LM_ERR("Could not import ul_register_ulcb\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_INSERT, ul_publish, 0)< 0)
{
LM_ERR("can not register callback for"
" insert\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_EXPIRE, ul_publish, 0)< 0)
{
LM_ERR("can not register callback for"
" expire\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_UPDATE, ul_publish, 0)< 0)
{
LM_ERR("can not register callback for update\n");
return -1;
}
if(ul.register_ulcb(UL_CONTACT_DELETE, ul_publish, 0)< 0)
{
LM_ERR("can not register callback for delete\n");
return -1;
}
bind_pua= (bind_pua_t)find_export("bind_pua", 1,0);
if (!bind_pua)
{
LM_ERR("Can't bind pua\n");
return -1;
}
if (bind_pua(&_pu_pua) < 0)
{
LM_ERR("Can't bind pua\n");
return -1;
}
if(_pu_pua.send_publish == NULL)
{
LM_ERR("Could not import send_publish\n");
return -1;
}
if(_pu_pua.send_subscribe == NULL)
{
LM_ERR("Could not import send_subscribe\n");
return -1;
}
/* register post-script pua_unset_publish unset function */
if(register_script_cb(pua_unset_publish, POST_SCRIPT_CB|REQUEST_CB, 0)<0)
{
LM_ERR("failed to register POST request callback\n");
return -1;
}
if(pua_ul_bflag!=-1)
pua_ul_bmask = 1 << pua_ul_bflag;
return 0;
}
int process_contact(udomain_t * _d, int expires, str contact_uri, int contact_state) {
char bufport[5], *rest, *sep, *val, *port, *trans;
pcontact_t* pcontact;
struct pcontact_info ci;
struct sip_uri puri, uri;
unsigned int received_proto, received_port_len;
int local_time_now, rest_len, val_len, has_alias;
int ret = RESULT_CONTACTS_FOUND;
pcscf_act_time();
local_time_now = time_now;
has_alias = 0;
//get contact
//if does not exist then add it
//if it does exist check if state it terminated - if so delete it, if not update it
memset(&ci, 0, sizeof (struct pcontact_info));
ci.num_public_ids = 0;
ci.num_service_routes = 0;
LM_DBG("Processing contact using contact from NOTIFY [%.*s]\n", contact_uri.len, contact_uri.s);
if (parse_uri(contact_uri.s, contact_uri.len, &puri) < 0) {
LM_DBG("Error parsing Contact URI <%.*s>\n", contact_uri.len, contact_uri.s);
return RESULT_ERROR;
}
expires = local_time_now + expires; //turn expires into correct time since epoch format
LM_DBG("Changed expires to format time since the epoch: %d", expires);
ci.expires = expires;
ci.reg_state = PCONTACT_REGISTERED;
ul.lock_udomain(_d, &puri.host, puri.port_no, puri.proto);
ci.aor = contact_uri;
ci.via_host = puri.host;
ci.via_prot = puri.proto;
ci.via_port = puri.port_no;
/* parse the uri in the NOTIFY */
if (parse_uri(contact_uri.s, contact_uri.len, &uri) != 0) {
LM_ERR("Unable to parse contact in SIP notify [%.*s]\n", contact_uri.len, contact_uri.s);
return RESULT_ERROR;
}
/*check for alias - NAT */
rest = uri.sip_params.s;
rest_len = uri.sip_params.len;
while (rest_len >= ALIAS_LEN) {
if (strncmp(rest, ALIAS, ALIAS_LEN) == 0) {
has_alias = 1;
break;
}
sep = memchr(rest, 59 /* ; */, rest_len);
if (sep == NULL) {
LM_DBG("no alias param\n");
break;
} else {
rest_len = rest_len - (sep - rest + 1);
rest = sep + 1;
}
}
if (has_alias) {
val = rest + ALIAS_LEN;
val_len = rest_len - ALIAS_LEN;
port = memchr(val, 126 /* ~ */, val_len);
if (port == NULL) {
LM_ERR("no '~' in alias param value\n");
return RESULT_ERROR;
}
port++;
// received_port = atoi(port);
trans = memchr(port, 126 /* ~ */, val_len - (port - val));
if (trans == NULL) {
LM_ERR("no second '~' in alias param value\n");
return RESULT_ERROR;
}
received_port_len = trans - port;
trans = trans + 1;
received_proto = *trans - 48 /* char 0 */;
memcpy(bufport, port, received_port_len);
bufport[received_port_len]=0;
ci.received_host.s = val;
ci.received_host.len = port - val - 1;
LM_DBG("Setting received host in search to [%.*s]\n", ci.received_host.len, ci.received_host.s);
ci.received_port = atoi(bufport);
LM_DBG("Setting received port in search to %d\n", ci.received_port);
ci.received_proto = received_proto;
LM_DBG("Setting received proto in search to %d\n", ci.received_proto);
ci.searchflag = SEARCH_RECEIVED;
} else {
LM_DBG("Contact in NOTIFY does not have an alias....\n");
}
if (ul.get_pcontact(_d, &ci, &pcontact) != 0) { //contact does not exist
if (contact_state == STATE_TERMINATED) {
LM_DBG("This contact: <%.*s> is in state terminated and is not in usrloc, ignore\n", contact_uri.len, contact_uri.s);
ret = RESULT_CONTACTS_FOUND;
goto done;
}
//LM_WARN("This contact: <%.*s> is in state active and is not in usrloc - must be another contact on a different P so going to ignore\n", contact_uri.len, contact_uri.s);
LM_DBG("This contact: <%.*s> is in state active and is not in usrloc so adding it to usrloc, expires: %d which is in %d seconds\n", contact_uri.len, contact_uri.s, expires, expires-local_time_now);
if (ul.insert_pcontact(_d, &contact_uri, &ci, &pcontact) != 0) {
LM_ERR("Failed inserting new pcontact\n");
ret = RESULT_ERROR;
goto done;
} else {
//register for callbacks on this contact so we can send PUBLISH to SCSCF should status change
LM_DBG("registering for UL callback\n");
ul.register_ulcb(pcontact, PCSCF_CONTACT_DELETE | PCSCF_CONTACT_EXPIRE, callback_pcscf_contact_cb, NULL);
}
} else {//contact exists
if (contact_state == STATE_TERMINATED) {
//delete contact
LM_DBG("This contact <%.*s> is in state terminated and is in usrloc so removing it from usrloc\n", contact_uri.len, contact_uri.s);
if (ul.delete_pcontact(_d, pcontact) != 0) {
LM_DBG("failed to delete pcscf contact <%.*s> - not a problem this may have been removed by de registration", contact_uri.len, contact_uri.s);
}
/*TODO_LATEST - put this back */
} else {//state is active
//update this contact
LM_DBG("This contact: <%.*s> is in state active and is in usrloc so just updating - old expires: %li, new expires: %i which is in %i seconds\n", contact_uri.len, contact_uri.s,
pcontact->expires,
expires,
expires - local_time_now);
if (ul.update_pcontact(_d, &ci, pcontact) != 0) {
LM_ERR("failed to update pcscf contact\n");
ret = RESULT_ERROR;
goto done;
}
pcontact->expires = expires;
}
}
done:
ul.unlock_udomain(_d, &puri.host, puri.port_no, puri.proto);
return ret;
}
/**
* Save contact based on REGISTER request. this will be a pending save, until we receive response
* from SCSCF. If no response after pending_timeout seconds, the contacts is removed. Can only be used from REQUEST ROUTE
*/
int save_pending(struct sip_msg* _m, udomain_t* _d) {
contact_body_t* cb = 0;
int cexpires = 0;
pcontact_t* pcontact;
contact_t* c;
struct pcontact_info ci;
struct via_body* vb;
unsigned short port, proto;
int_str val;
struct sip_uri parsed_received;
char srcip[50];
memset(&ci, 0, sizeof(struct pcontact_info));
vb = cscf_get_ue_via(_m);
port = vb->port?vb->port:5060;
proto = vb->proto;
cb = cscf_parse_contacts(_m);
if (!cb || (!cb->contacts)) {
LM_ERR("No contact headers\n");
goto error;
}
c = cb->contacts;
//TODO: need support for multiple contacts - currently assume one contact
//make sure this is not a de-registration
int expires_hdr = cscf_get_expires_hdr(_m, 0);
if (expires_hdr < 0) {
//no global header we have to check the contact expiry
if (c && c->expires && c->expires->body.len) {
str2int(&(c->expires->body), (unsigned int*) &cexpires);
}
if (!cexpires){ //assume de-registration
LM_DBG("not doing pending reg on de-registration\n");
return 1;
}
}
pcscf_act_time();
int local_time_now = time_now;
int expires = calc_contact_expires(c, expires_hdr, local_time_now);
if (expires <= 0) {
LM_DBG("not doing pending reg on de-registration\n");
return 1;
}
LM_DBG("Save Pending");
LM_DBG("contact requesting to expire in %d seconds\n", expires-local_time_now);
/*populate CI with bare minimum*/
ci.via_host = vb->host;
ci.via_port = port;
ci.via_prot = proto;
ci.aor = c->uri;
ci.num_public_ids=0;
ci.num_service_routes=0;
ci.expires=local_time_now + pending_reg_expires;
ci.reg_state=PCONTACT_ANY;
ci.searchflag=SEARCH_RECEIVED; //we want to make sure we are very specific with this search to make sure we get the correct contact to put into reg_pending.
// Received Info: First try AVP, otherwise simply take the source of the request:
memset(&val, 0, sizeof(int_str));
if (rcv_avp_name.n != 0
&& search_first_avp(rcv_avp_type, rcv_avp_name, &val, 0)
&& val.s.len > 0) {
if (val.s.len > RECEIVED_MAX_SIZE) {
LM_ERR("received too long\n");
goto error;
}
if (parse_uri(val.s.s, val.s.len, &parsed_received) < 0) {
LM_DBG("Error parsing Received URI <%.*s>\n", val.s.len, val.s.s);
goto error;
}
ci.received_host = parsed_received.host;
ci.received_port = parsed_received.port_no;
ci.received_proto = parsed_received.proto;
} else {
ci.received_host.len = ip_addr2sbuf(&_m->rcv.src_ip, srcip,
sizeof(srcip));
ci.received_host.s = srcip;
ci.received_port = _m->rcv.src_port;
ci.received_proto = _m->rcv.proto;
}
// Set to default, if not set:
if (ci.received_port == 0)
ci.received_port = 5060;
ul.lock_udomain(_d, &ci.via_host, ci.via_port, ci.via_prot);
if (ul.get_pcontact(_d, &ci, &pcontact) != 0) { //need to insert new contact
LM_DBG("Adding pending pcontact: <%.*s>\n", c->uri.len, c->uri.s);
ci.reg_state=PCONTACT_REG_PENDING;
if (ul.insert_pcontact(_d, &c->uri, &ci, &pcontact) != 0) {
LM_ERR("Failed inserting new pcontact\n");
} else {
LM_DBG("registering for UL callback\n");
ul.register_ulcb(pcontact, PCSCF_CONTACT_DELETE | PCSCF_CONTACT_EXPIRE | PCSCF_CONTACT_UPDATE, callback_pcscf_contact_cb, NULL);
}
} else { //contact already exists - update
LM_DBG("Contact already exists - not doing anything for now\n");
}
ul.unlock_udomain(_d, &ci.via_host, ci.via_port, ci.via_prot);
return 1;
error:
LM_DBG("Error saving pending contact\n");
return -1;
}
/**
* Updates the registrar with the new values
* @param req - the REGISTER request - to extract NAT info
* @param rpl - the REGISTER reply - to extract contact info
* @param is_star - whether this was a STAR contact header
* @param expires_hdr - value of the Expires header
* @param public_id - array of public identities attached to this contact
* @param public_id_cnt - size of the public_id array
* @param service_route - array of Service-Routes
* @param service_route_cnt - size of the service_route array
* @param requires_nat - if to create pinholes
* @returns the maximum expiration time, -1 on error
*/
static inline int update_contacts(struct sip_msg *req,struct sip_msg *rpl, udomain_t* _d, unsigned char is_star,int expires_hdr,
str *public_id,int public_id_cnt,str *service_route,int service_route_cnt, int requires_nat)
{
int local_time_now, expires=0;
struct hdr_field* h;
contact_t* c;
struct sip_uri puri;
struct sip_uri parsed_received;
struct pcontact_info ci;
pcontact_t* pcontact;
char srcip[50];
int_str val;
pcscf_act_time();
local_time_now = time_now;
if (is_star) {
/* first of all, we shouldn't get here...
* then, we will update on NOTIFY */
return 0;
}
// Set the structure to "0", to make sure it's properly initialized
memset(&ci, 0, sizeof(struct pcontact_info));
for (h = rpl->contact; h; h = h->next) {
if (h->type == HDR_CONTACT_T && h->parsed)
for (c = ((contact_body_t*) h->parsed)->contacts; c; c = c->next) {
expires = calc_contact_expires(c, expires_hdr, local_time_now);
if (parse_uri(c->uri.s, c->uri.len, &puri) < 0) {
LM_DBG("Error parsing Contact URI <%.*s>\n", c->uri.len, c->uri.s);
continue;
}
//build contact info
ci.expires = expires;
ci.public_ids = public_id;
ci.num_public_ids = public_id_cnt;
ci.service_routes = service_route;
ci.num_service_routes = service_route_cnt;
ci.reg_state = PCONTACT_REGISTERED;
ci.received_host.len = 0;
ci.received_host.s = 0;
ci.received_port = 0;
ci.received_proto = 0;
// Received Info: First try AVP, otherwise simply take the source of the request:
memset(&val, 0, sizeof(int_str));
if (rcv_avp_name.n!=0 && search_first_avp(rcv_avp_type, rcv_avp_name, &val, 0) && val.s.len > 0) {
if (val.s.len>RECEIVED_MAX_SIZE) {
LM_ERR("received too long\n");
goto error;
}
if (parse_uri(val.s.s, val.s.len, &parsed_received) < 0) {
LM_DBG("Error parsing Received URI <%.*s>\n", val.s.len, val.s.s);
continue;
}
ci.received_host = parsed_received.host;
ci.received_port = parsed_received.port_no;
ci.received_proto = parsed_received.proto;
} else {
ci.received_host.len = ip_addr2sbuf(&req->rcv.src_ip, srcip, sizeof(srcip));
ci.received_host.s = srcip;
ci.received_port = req->rcv.src_port;
ci.received_proto = req->rcv.proto;
}
// Set to default, if not set:
if (ci.received_port == 0) ci.received_port = 5060;
ul.lock_udomain(_d, &c->uri);
if (ul.get_pcontact(_d, &c->uri, &pcontact) != 0) { //need to insert new contact
if ((expires-local_time_now)<=0) { //remove contact - de-register
LM_DBG("This is a de-registration for contact <%.*s> but contact is not in usrloc - ignore\n", c->uri.len, c->uri.s);
goto next_contact;
}
LM_DBG("Adding pcontact: <%.*s>, expires: %d which is in %d seconds\n", c->uri.len, c->uri.s, expires, expires-local_time_now);
if (ul.insert_pcontact(_d, &c->uri, &ci, &pcontact) != 0) {
LM_ERR("Failed inserting new pcontact\n");
} else {
//register for callbacks on this contact so we can send PUBLISH to SCSCF should status change
LM_DBG("registering for UL callback\n");
ul.register_ulcb(pcontact, PCSCF_CONTACT_DELETE | PCSCF_CONTACT_EXPIRE, callback_pcscf_contact_cb, NULL);
//we also need to subscribe to reg event of this contact at SCSCF
}
} else { //contact already exists - update
LM_DBG("contact already exists and is in state (%d) : [%s]\n",pcontact->reg_state, reg_state_to_string(pcontact->reg_state));
if ((expires-local_time_now)<=0) { //remove contact - de-register
LM_DBG("This is a de-registration for contact <%.*s>\n", c->uri.len, c->uri.s);
if (ul.delete_pcontact(_d, &c->uri, pcontact) != 0) {
LM_ERR("failed to delete pcscf contact <%.*s>\n", c->uri.len, c->uri.s);
}
} else { //update contact
LM_DBG("Updating contact: <%.*s>, old expires: %li, new expires: %i which is in %i seconds\n", c->uri.len, c->uri.s,
pcontact->expires-local_time_now,
expires,
expires-local_time_now);
if (ul.update_pcontact(_d, &ci, pcontact) != 0) {
LM_ERR("failed to update pcscf contact\n");
}
pcontact->expires = expires;
}
}
next_contact:
ul.unlock_udomain(_d, &c->uri);
}
}
return 1;
error:
return 0;
}
int process_contact(udomain_t * _d, int expires, str contact_uri, int contact_state) {
pcontact_t* pcontact;
struct pcontact_info ci;
int local_time_now;
int ret = RESULT_CONTACTS_FOUND;
pcscf_act_time();
local_time_now = time_now;
//get contact
//if does not exist then add it
//if it does exist check if state it terminated - if so delete it, if not update it
memset(&ci, 0, sizeof(struct pcontact_info));
ci.num_public_ids=0;
ci.num_service_routes=0;
expires = local_time_now + expires; //turn expires into correct time since epoch format
LM_DBG("Changed expires to format time since the epoch: %d", expires);
ci.expires=expires;
ci.reg_state = PCONTACT_REGISTERED;
ul.lock_udomain(_d, &contact_uri);
if (ul.get_pcontact(_d, &contact_uri, &pcontact) != 0) { //contact does not exist
if (contact_state == STATE_TERMINATED) {
LM_DBG("This contact: <%.*s> is in state terminated and is not in usrloc, ignore\n", contact_uri.len, contact_uri.s);
ret = RESULT_CONTACTS_FOUND;
goto done;
}
LM_DBG("This contact: <%.*s> is in state active and is not in usrloc so adding it to usrloc, expires: %d which is in %d seconds\n", contact_uri.len, contact_uri.s, expires, expires-local_time_now);
if (ul.insert_pcontact(_d, &contact_uri, &ci, &pcontact) != 0) {
LM_ERR("Failed inserting new pcontact\n");
ret = RESULT_ERROR;
goto done;
} else {
//register for callbacks on this contact so we can send PUBLISH to SCSCF should status change
LM_DBG("registering for UL callback\n");
ul.register_ulcb(pcontact, PCSCF_CONTACT_DELETE | PCSCF_CONTACT_EXPIRE, callback_pcscf_contact_cb, NULL);
}
} else {//contact exists
if (contact_state == STATE_TERMINATED) {
//delete contact
LM_DBG("This contact <%.*s> is in state terminated and is in usrloc so removing it from usrloc\n", contact_uri.len, contact_uri.s);
if (ul.delete_pcontact(_d, &contact_uri, pcontact) != 0) {
LM_DBG("failed to delete pcscf contact <%.*s> - not a problem this may have been removed by de registration", contact_uri.len, contact_uri.s);
}
} else {//state is active
//update this contact
LM_DBG("This contact: <%.*s> is in state active and is in usrloc so just updating - old expires: %li, new expires: %i which is in %i seconds\n", contact_uri.len, contact_uri.s,
pcontact->expires,
expires,
expires-local_time_now);
if (ul.update_pcontact(_d, &ci, pcontact) != 0) {
LM_ERR("failed to update pcscf contact\n");
ret = RESULT_ERROR;
goto done;
}
pcontact->expires = expires;
}
}
done:
ul.unlock_udomain(_d, &contact_uri);
return ret;
}
