PJ_DEF(pj_status_t) pjsip_regc_destroy(pjsip_regc *regc)
{
PJ_ASSERT_RETURN(regc, PJ_EINVAL);
pj_lock_acquire(regc->lock);
if (regc->has_tsx || pj_atomic_get(regc->busy_ctr) != 0) {
regc->_delete_flag = 1;
regc->cb = NULL;
pj_lock_release(regc->lock);
} else {
pjsip_tpselector_dec_ref(®c->tp_sel);
if (regc->last_transport) {
pjsip_transport_dec_ref(regc->last_transport);
regc->last_transport = NULL;
}
if (regc->timer.id != 0) {
pjsip_endpt_cancel_timer(regc->endpt, ®c->timer);
regc->timer.id = 0;
}
pj_atomic_destroy(regc->busy_ctr);
pj_lock_release(regc->lock);
pj_lock_destroy(regc->lock);
regc->lock = NULL;
pjsip_endpt_release_pool(regc->endpt, regc->pool);
}
return PJ_SUCCESS;
}
/*
* Create new transmit buffer.
*/
PJ_DEF(pj_status_t) pjsip_tx_data_create( pjsip_tpmgr *mgr,
pjsip_tx_data **p_tdata )
{
pj_pool_t *pool;
pjsip_tx_data *tdata;
pj_status_t status;
PJ_ASSERT_RETURN(mgr && p_tdata, PJ_EINVAL);
pool = pjsip_endpt_create_pool( mgr->endpt, "tdta%p",
PJSIP_POOL_LEN_TDATA,
PJSIP_POOL_INC_TDATA );
if (!pool)
return PJ_ENOMEM;
tdata = PJ_POOL_ZALLOC_T(pool, pjsip_tx_data);
tdata->pool = pool;
tdata->mgr = mgr;
pj_memcpy(tdata->obj_name, pool->obj_name, PJ_MAX_OBJ_NAME);
status = pj_atomic_create(tdata->pool, 0, &tdata->ref_cnt);
if (status != PJ_SUCCESS) {
pjsip_endpt_release_pool( mgr->endpt, tdata->pool );
return status;
}
//status = pj_lock_create_simple_mutex(pool, "tdta%p", &tdata->lock);
status = pj_lock_create_null_mutex(pool, "tdta%p", &tdata->lock);
if (status != PJ_SUCCESS) {
pjsip_endpt_release_pool( mgr->endpt, tdata->pool );
return status;
}
pj_ioqueue_op_key_init(&tdata->op_key.key, sizeof(tdata->op_key.key));
#if defined(PJ_DEBUG) && PJ_DEBUG!=0
pj_atomic_inc( tdata->mgr->tdata_counter );
#endif
*p_tdata = tdata;
return PJ_SUCCESS;
}
/*!
* \brief Destroy the pjsip transport.
*
* Called by pjsip transport manager.
*/
static pj_status_t ws_destroy(pjsip_transport *transport)
{
struct ws_transport *wstransport = (struct ws_transport *)transport;
if (wstransport->transport.ref_cnt) {
pj_atomic_destroy(wstransport->transport.ref_cnt);
}
if (wstransport->transport.lock) {
pj_lock_destroy(wstransport->transport.lock);
}
pjsip_endpt_release_pool(wstransport->transport.endpt, wstransport->transport.pool);
if (wstransport->rdata.tp_info.pool) {
pjsip_endpt_release_pool(wstransport->transport.endpt, wstransport->rdata.tp_info.pool);
}
return PJ_SUCCESS;
}
/*
* mod_ua_unload()
*
* Called when module is being unloaded.
*/
static pj_status_t mod_ua_unload(void)
{
pj_thread_local_free(pjsip_dlg_lock_tls_id);
pj_mutex_destroy(mod_ua.mutex);
/* Release pool */
if (mod_ua.pool) {
pjsip_endpt_release_pool( mod_ua.endpt, mod_ua.pool );
}
return PJ_SUCCESS;
}
/*! \brief Helper function which validates a permanent contact */
static int permanent_contact_validate(void *data)
{
const char *value = data;
pj_pool_t *pool;
pj_str_t contact_uri;
static const pj_str_t HCONTACT = { "Contact", 7 };
pool = pjsip_endpt_create_pool(ast_sip_get_pjsip_endpoint(), "Permanent Contact Validation", 256, 256);
if (!pool) {
return -1;
}
pj_strdup2_with_null(pool, &contact_uri, value);
if (!pjsip_parse_hdr(pool, &HCONTACT, contact_uri.ptr, contact_uri.slen, NULL)) {
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), pool);
return -1;
}
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), pool);
return 0;
}
/* Handler to destroy the transport; called by transport manager */
static pj_status_t loop_destroy(pjsip_transport *tp)
{
struct loop_transport *loop = (struct loop_transport*)tp;
PJ_ASSERT_RETURN(tp && (tp->key.type == PJSIP_TRANSPORT_LOOP ||
tp->key.type == PJSIP_TRANSPORT_LOOP_DGRAM), PJ_EINVAL);
loop->thread_quit_flag = 1;
/* Unlock transport mutex before joining thread. */
pj_lock_release(tp->lock);
pj_thread_join(loop->thread);
pj_thread_destroy(loop->thread);
/* Clear pending send notifications. */
while (!pj_list_empty(&loop->send_list)) {
struct send_list *node = loop->send_list.next;
/* Notify callback. */
if (node->callback) {
(*node->callback)(&loop->base, node->token, -PJSIP_ESHUTDOWN);
}
pj_list_erase(node);
pjsip_tx_data_dec_ref(node->tdata);
}
/* Clear "incoming" packets in the queue. */
while (!pj_list_empty(&loop->recv_list)) {
struct recv_list *node = loop->recv_list.next;
pj_list_erase(node);
pjsip_endpt_release_pool(loop->base.endpt,
node->rdata.tp_info.pool);
}
/* Self destruct.. heheh.. */
pj_lock_destroy(loop->base.lock);
pj_atomic_destroy(loop->base.ref_cnt);
pjsip_endpt_release_pool(loop->base.endpt, loop->base.pool);
return PJ_SUCCESS;
}
PJ_DEF(pj_status_t) pjsip_publishc_destroy(pjsip_publishc *pubc)
{
PJ_ASSERT_RETURN(pubc, PJ_EINVAL);
if (pubc->pending_tsx) {
pubc->_delete_flag = 1;
pubc->cb = NULL;
} else {
pjsip_endpt_release_pool(pubc->endpt, pubc->pool);
}
return PJ_SUCCESS;
}
static void transport_dtor(void *arg)
{
struct ws_transport *wstransport = arg;
if (wstransport->ws_session) {
ast_websocket_unref(wstransport->ws_session);
}
if (wstransport->transport.ref_cnt) {
pj_atomic_destroy(wstransport->transport.ref_cnt);
}
if (wstransport->transport.lock) {
pj_lock_destroy(wstransport->transport.lock);
}
if (wstransport->transport.endpt && wstransport->transport.pool) {
pjsip_endpt_release_pool(wstransport->transport.endpt, wstransport->transport.pool);
}
if (wstransport->rdata.tp_info.pool) {
pjsip_endpt_release_pool(wstransport->transport.endpt, wstransport->rdata.tp_info.pool);
}
}
/*
* Decrease transport data reference, destroy it when the reference count
* reaches zero.
*/
PJ_DEF(pj_status_t) pjsip_tx_data_dec_ref( pjsip_tx_data *tdata )
{
pj_assert( pj_atomic_get(tdata->ref_cnt) > 0);
if (pj_atomic_dec_and_get(tdata->ref_cnt) <= 0) {
PJ_LOG(5,(tdata->obj_name, "Destroying txdata %s",
pjsip_tx_data_get_info(tdata)));
pjsip_tpselector_dec_ref(&tdata->tp_sel);
#if defined(PJ_DEBUG) && PJ_DEBUG!=0
pj_atomic_dec( tdata->mgr->tdata_counter );
#endif
pj_atomic_destroy( tdata->ref_cnt );
pj_lock_destroy( tdata->lock );
pjsip_endpt_release_pool( tdata->mgr->endpt, tdata->pool );
return PJSIP_EBUFDESTROYED;
} else {
return PJ_SUCCESS;
}
}
static int simple_uri_test(void)
{
unsigned i;
pj_pool_t *pool;
pj_status_t status;
PJ_LOG(3,(THIS_FILE, " simple test"));
for (i=0; i<PJ_ARRAY_SIZE(uri_test_array); ++i) {
pool = pjsip_endpt_create_pool(endpt, "", POOL_SIZE, POOL_SIZE);
status = do_uri_test(pool, &uri_test_array[i]);
pjsip_endpt_release_pool(endpt, pool);
if (status != PJ_SUCCESS) {
PJ_LOG(3,(THIS_FILE, " error %d when testing entry %d",
status, i));
return status;
}
}
return 0;
}
PJ_DEF(pj_status_t) pjsip_publishc_destroy(pjsip_publishc *pubc)
{
PJ_ASSERT_RETURN(pubc, PJ_EINVAL);
if (pubc->pending_tsx || pubc->in_callback) {
pubc->_delete_flag = 1;
pubc->cb = NULL;
} else {
/* Cancel existing timer, if any */
if (pubc->timer.id != 0) {
pjsip_endpt_cancel_timer(pubc->endpt, &pubc->timer);
pubc->timer.id = 0;
}
if (pubc->mutex)
pj_mutex_destroy(pubc->mutex);
pjsip_endpt_release_pool(pubc->endpt, pubc->pool);
}
return PJ_SUCCESS;
}
/* Clean up UDP resources */
static void udp_on_destroy(void *arg)
{
struct udp_transport *tp = (struct udp_transport*)arg;
int i;
/* Destroy rdata */
for (i=0; i<tp->rdata_cnt; ++i) {
pj_pool_release(tp->rdata[i]->tp_info.pool);
}
/* Destroy reference counter. */
if (tp->base.ref_cnt)
pj_atomic_destroy(tp->base.ref_cnt);
/* Destroy lock */
if (tp->base.lock)
pj_lock_destroy(tp->base.lock);
/* Destroy pool. */
pjsip_endpt_release_pool(tp->base.endpt, tp->base.pool);
}
/*! \brief Internal function which validates provided Contact headers to confirm that they are acceptable, and returns number of contacts */
static int registrar_validate_contacts(const pjsip_rx_data *rdata, struct ao2_container *contacts, struct ast_sip_aor *aor, int *added, int *updated, int *deleted)
{
pjsip_contact_hdr *previous = NULL, *contact = (pjsip_contact_hdr *)&rdata->msg_info.msg->hdr;
struct registrar_contact_details details = {
.pool = pjsip_endpt_create_pool(ast_sip_get_pjsip_endpoint(), "Contact Comparison", 256, 256),
};
if (!details.pool) {
return -1;
}
while ((contact = (pjsip_contact_hdr *) pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_CONTACT, contact->next))) {
int expiration = registrar_get_expiration(aor, contact, rdata);
RAII_VAR(struct ast_sip_contact *, existing, NULL, ao2_cleanup);
if (contact->star) {
/* The expiration MUST be 0 when a '*' contact is used and there must be no other contact */
if ((expiration != 0) || previous) {
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
return -1;
}
continue;
} else if (previous && previous->star) {
/* If there is a previous contact and it is a '*' this is a deal breaker */
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
return -1;
}
previous = contact;
if (!PJSIP_URI_SCHEME_IS_SIP(contact->uri) && !PJSIP_URI_SCHEME_IS_SIPS(contact->uri)) {
continue;
}
details.uri = pjsip_uri_get_uri(contact->uri);
/* Determine if this is an add, update, or delete for policy enforcement purposes */
if (!(existing = ao2_callback(contacts, 0, registrar_find_contact, &details))) {
if (expiration) {
(*added)++;
}
} else if (expiration) {
(*updated)++;
} else {
(*deleted)++;
}
}
/* The provided contacts are acceptable, huzzah! */
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
return 0;
}
/*! \brief Callback function which prunes static contacts */
static int registrar_prune_static(void *obj, void *arg, int flags)
{
struct ast_sip_contact *contact = obj;
return ast_tvzero(contact->expiration_time) ? CMP_MATCH : 0;
}
/*! \brief Internal function used to delete all contacts from an AOR */
static int registrar_delete_contact(void *obj, void *arg, int flags)
{
struct ast_sip_contact *contact = obj;
const char *aor_name = arg;
ast_sip_location_delete_contact(contact);
if (!ast_strlen_zero(aor_name)) {
ast_verb(3, "Removed contact '%s' from AOR '%s' due to request\n", contact->uri, aor_name);
ast_test_suite_event_notify("AOR_CONTACT_REMOVED",
"Contact: %s\r\n"
"AOR: %s",
contact->uri,
aor_name);
}
return 0;
}
/*! \brief Internal function which adds a contact to a response */
static int registrar_add_contact(void *obj, void *arg, int flags)
{
struct ast_sip_contact *contact = obj;
pjsip_tx_data *tdata = arg;
pjsip_contact_hdr *hdr = pjsip_contact_hdr_create(tdata->pool);
pj_str_t uri;
pj_strdup2_with_null(tdata->pool, &uri, contact->uri);
hdr->uri = pjsip_parse_uri(tdata->pool, uri.ptr, uri.slen, PJSIP_PARSE_URI_AS_NAMEADDR);
hdr->expires = ast_tvdiff_ms(contact->expiration_time, ast_tvnow()) / 1000;
pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr*)hdr);
return 0;
}
/*! \brief Helper function which adds a Date header to a response */
static void registrar_add_date_header(pjsip_tx_data *tdata)
{
char date[256];
struct tm tm;
time_t t = time(NULL);
gmtime_r(&t, &tm);
strftime(date, sizeof(date), "%a, %d %b %Y %T GMT", &tm);
ast_sip_add_header(tdata, "Date", date);
}
static int rx_task(void *data)
{
RAII_VAR(struct rx_task_data *, task_data, data, ao2_cleanup);
RAII_VAR(struct ao2_container *, contacts, NULL, ao2_cleanup);
int added = 0, updated = 0, deleted = 0;
pjsip_contact_hdr *contact_hdr = NULL;
struct registrar_contact_details details = { 0, };
pjsip_tx_data *tdata;
pjsip_response_addr addr;
const char *aor_name = ast_sorcery_object_get_id(task_data->aor);
/* Retrieve the current contacts, we'll need to know whether to update or not */
contacts = ast_sip_location_retrieve_aor_contacts(task_data->aor);
/* So we don't count static contacts against max_contacts we prune them out from the container */
ao2_callback(contacts, OBJ_NODATA | OBJ_UNLINK | OBJ_MULTIPLE, registrar_prune_static, NULL);
if (registrar_validate_contacts(task_data->rdata, contacts, task_data->aor, &added, &updated, &deleted)) {
/* The provided Contact headers do not conform to the specification */
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), task_data->rdata, 400, NULL, NULL, NULL);
ast_sip_report_failed_acl(task_data->endpoint, task_data->rdata, "registrar_invalid_contacts_provided");
ast_log(LOG_WARNING, "Failed to validate contacts in REGISTER request from '%s'\n",
ast_sorcery_object_get_id(task_data->endpoint));
return PJ_TRUE;
}
if ((MAX(added - deleted, 0) + (!task_data->aor->remove_existing ? ao2_container_count(contacts) : 0)) > task_data->aor->max_contacts) {
/* Enforce the maximum number of contacts */
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), task_data->rdata, 403, NULL, NULL, NULL);
ast_sip_report_failed_acl(task_data->endpoint, task_data->rdata, "registrar_attempt_exceeds_maximum_configured_contacts");
ast_log(LOG_WARNING, "Registration attempt from endpoint '%s' to AOR '%s' will exceed max contacts of %d\n",
ast_sorcery_object_get_id(task_data->endpoint), ast_sorcery_object_get_id(task_data->aor), task_data->aor->max_contacts);
return PJ_TRUE;
}
if (!(details.pool = pjsip_endpt_create_pool(ast_sip_get_pjsip_endpoint(), "Contact Comparison", 256, 256))) {
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), task_data->rdata, 500, NULL, NULL, NULL);
return PJ_TRUE;
}
/* Iterate each provided Contact header and add, update, or delete */
while ((contact_hdr = pjsip_msg_find_hdr(task_data->rdata->msg_info.msg, PJSIP_H_CONTACT, contact_hdr ? contact_hdr->next : NULL))) {
int expiration;
char contact_uri[PJSIP_MAX_URL_SIZE];
RAII_VAR(struct ast_sip_contact *, contact, NULL, ao2_cleanup);
if (contact_hdr->star) {
/* A star means to unregister everything, so do so for the possible contacts */
ao2_callback(contacts, OBJ_NODATA | OBJ_MULTIPLE, registrar_delete_contact, (void *)aor_name);
break;
}
if (!PJSIP_URI_SCHEME_IS_SIP(contact_hdr->uri) && !PJSIP_URI_SCHEME_IS_SIPS(contact_hdr->uri)) {
/* This registrar only currently supports sip: and sips: URI schemes */
continue;
}
expiration = registrar_get_expiration(task_data->aor, contact_hdr, task_data->rdata);
details.uri = pjsip_uri_get_uri(contact_hdr->uri);
pjsip_uri_print(PJSIP_URI_IN_CONTACT_HDR, details.uri, contact_uri, sizeof(contact_uri));
if (!(contact = ao2_callback(contacts, OBJ_UNLINK, registrar_find_contact, &details))) {
/* If they are actually trying to delete a contact that does not exist... be forgiving */
if (!expiration) {
ast_verb(3, "Attempted to remove non-existent contact '%s' from AOR '%s' by request\n",
contact_uri, aor_name);
continue;
}
ast_sip_location_add_contact(task_data->aor, contact_uri, ast_tvadd(ast_tvnow(), ast_samp2tv(expiration, 1)));
ast_verb(3, "Added contact '%s' to AOR '%s' with expiration of %d seconds\n",
contact_uri, aor_name, expiration);
ast_test_suite_event_notify("AOR_CONTACT_ADDED",
"Contact: %s\r\n"
"AOR: %s\r\n"
"Expiration: %d",
contact_uri,
aor_name,
expiration);
} else if (expiration) {
RAII_VAR(struct ast_sip_contact *, updated, ast_sorcery_copy(ast_sip_get_sorcery(), contact), ao2_cleanup);
updated->expiration_time = ast_tvadd(ast_tvnow(), ast_samp2tv(expiration, 1));
updated->qualify_frequency = task_data->aor->qualify_frequency;
updated->authenticate_qualify = task_data->aor->authenticate_qualify;
ast_sip_location_update_contact(updated);
ast_debug(3, "Refreshed contact '%s' on AOR '%s' with new expiration of %d seconds\n",
contact_uri, aor_name, expiration);
ast_test_suite_event_notify("AOR_CONTACT_REFRESHED",
"Contact: %s\r\n"
"AOR: %s\r\n"
"Expiration: %d",
contact_uri,
aor_name,
expiration);
} else {
ast_sip_location_delete_contact(contact);
ast_verb(3, "Removed contact '%s' from AOR '%s' due to request\n", contact_uri, aor_name);
ast_test_suite_event_notify("AOR_CONTACT_REMOVED",
"Contact: %s\r\n"
"AOR: %s",
contact_uri,
aor_name);
}
}
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
/* If the AOR is configured to remove any existing contacts that have not been updated/added as a result of this REGISTER
* do so
*/
if (task_data->aor->remove_existing) {
ao2_callback(contacts, OBJ_NODATA | OBJ_MULTIPLE, registrar_delete_contact, NULL);
}
/* Update the contacts as things will probably have changed */
ao2_cleanup(contacts);
contacts = ast_sip_location_retrieve_aor_contacts(task_data->aor);
/* Send a response containing all of the contacts (including static) that are present on this AOR */
if (pjsip_endpt_create_response(ast_sip_get_pjsip_endpoint(), task_data->rdata, 200, NULL, &tdata) != PJ_SUCCESS) {
return PJ_TRUE;
}
/* Add the date header to the response, some UAs use this to set their date and time */
registrar_add_date_header(tdata);
ao2_callback(contacts, 0, registrar_add_contact, tdata);
if (pjsip_get_response_addr(tdata->pool, task_data->rdata, &addr) == PJ_SUCCESS) {
pjsip_endpt_send_response(ast_sip_get_pjsip_endpoint(), &addr, tdata, NULL, NULL);
} else {
pjsip_tx_data_dec_ref(tdata);
}
return PJ_TRUE;
}
/* Handler for sending outgoing message; called by transport manager. */
static pj_status_t loop_send_msg( pjsip_transport *tp,
pjsip_tx_data *tdata,
const pj_sockaddr_t *rem_addr,
int addr_len,
void *token,
void (*cb)(pjsip_transport *transport,
void *token,
pj_ssize_t sent_bytes))
{
struct loop_transport *loop = (struct loop_transport*)tp;
struct recv_list *recv_pkt;
PJ_ASSERT_RETURN(tp && (tp->key.type == PJSIP_TRANSPORT_LOOP ||
tp->key.type == PJSIP_TRANSPORT_LOOP_DGRAM), PJ_EINVAL);
PJ_UNUSED_ARG(rem_addr);
PJ_UNUSED_ARG(addr_len);
/* Need to send failure? */
if (loop->fail_mode) {
if (loop->send_delay == 0) {
return PJ_STATUS_FROM_OS(OSERR_ECONNRESET);
} else {
add_notification(loop, tdata, -PJ_STATUS_FROM_OS(OSERR_ECONNRESET),
token, cb);
return PJ_EPENDING;
}
}
/* Discard any packets? */
if (loop->discard)
return PJ_SUCCESS;
/* Create rdata for the "incoming" packet. */
recv_pkt = create_incoming_packet(loop, tdata);
if (!recv_pkt)
return PJ_ENOMEM;
/* If delay is not configured, deliver this packet now! */
if (loop->recv_delay == 0) {
pj_ssize_t size_eaten;
size_eaten = pjsip_tpmgr_receive_packet( loop->base.tpmgr,
&recv_pkt->rdata);
pj_assert(size_eaten == recv_pkt->rdata.pkt_info.len);
pjsip_endpt_release_pool(loop->base.endpt,
recv_pkt->rdata.tp_info.pool);
} else {
/* Otherwise if delay is configured, add the "packet" to the
* receive list to be processed by worker thread.
*/
pj_lock_acquire(loop->base.lock);
pj_list_push_back(&loop->recv_list, recv_pkt);
pj_lock_release(loop->base.lock);
}
if (loop->send_delay != 0) {
add_notification(loop, tdata, tdata->buf.cur - tdata->buf.start,
token, cb);
return PJ_EPENDING;
} else {
return PJ_SUCCESS;
}
}
static int register_aor_core(pjsip_rx_data *rdata,
struct ast_sip_endpoint *endpoint,
struct ast_sip_aor *aor,
const char *aor_name,
struct ao2_container *contacts)
{
static const pj_str_t USER_AGENT = { "User-Agent", 10 };
int added = 0, updated = 0, deleted = 0;
pjsip_contact_hdr *contact_hdr = NULL;
struct registrar_contact_details details = { 0, };
pjsip_tx_data *tdata;
RAII_VAR(struct ast_str *, path_str, NULL, ast_free);
struct ast_sip_contact *response_contact;
char *user_agent = NULL;
pjsip_user_agent_hdr *user_agent_hdr;
pjsip_expires_hdr *expires_hdr;
pjsip_via_hdr *via_hdr;
pjsip_via_hdr *via_hdr_last;
char *via_addr = NULL;
int via_port = 0;
pjsip_cid_hdr *call_id_hdr;
char *call_id = NULL;
size_t alloc_size;
/* So we don't count static contacts against max_contacts we prune them out from the container */
ao2_callback(contacts, OBJ_NODATA | OBJ_UNLINK | OBJ_MULTIPLE, registrar_prune_static, NULL);
if (registrar_validate_contacts(rdata, contacts, aor, &added, &updated, &deleted)) {
/* The provided Contact headers do not conform to the specification */
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), rdata, 400, NULL, NULL, NULL);
ast_sip_report_failed_acl(endpoint, rdata, "registrar_invalid_contacts_provided");
ast_log(LOG_WARNING, "Failed to validate contacts in REGISTER request from '%s'\n",
ast_sorcery_object_get_id(endpoint));
return PJ_TRUE;
}
if (registrar_validate_path(rdata, aor, &path_str)) {
/* Ensure that intervening proxies did not make invalid modifications to the request */
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), rdata, 420, NULL, NULL, NULL);
ast_log(LOG_WARNING, "Invalid modifications made to REGISTER request from '%s' by intervening proxy\n",
ast_sorcery_object_get_id(endpoint));
return PJ_TRUE;
}
if ((MAX(added - deleted, 0) + (!aor->remove_existing ? ao2_container_count(contacts) : 0)) > aor->max_contacts) {
/* Enforce the maximum number of contacts */
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), rdata, 403, NULL, NULL, NULL);
ast_sip_report_failed_acl(endpoint, rdata, "registrar_attempt_exceeds_maximum_configured_contacts");
ast_log(LOG_WARNING, "Registration attempt from endpoint '%s' to AOR '%s' will exceed max contacts of %u\n",
ast_sorcery_object_get_id(endpoint), aor_name, aor->max_contacts);
return PJ_TRUE;
}
if (!(details.pool = pjsip_endpt_create_pool(ast_sip_get_pjsip_endpoint(), "Contact Comparison", 256, 256))) {
pjsip_endpt_respond_stateless(ast_sip_get_pjsip_endpoint(), rdata, 500, NULL, NULL, NULL);
return PJ_TRUE;
}
user_agent_hdr = pjsip_msg_find_hdr_by_name(rdata->msg_info.msg, &USER_AGENT, NULL);
if (user_agent_hdr) {
alloc_size = pj_strlen(&user_agent_hdr->hvalue) + 1;
user_agent = ast_alloca(alloc_size);
ast_copy_pj_str(user_agent, &user_agent_hdr->hvalue, alloc_size);
}
/* Find the first Via header */
via_hdr = via_hdr_last = (pjsip_via_hdr*) pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_VIA, NULL);
if (via_hdr) {
/* Find the last Via header */
while ( (via_hdr = (pjsip_via_hdr*) pjsip_msg_find_hdr(rdata->msg_info.msg,
PJSIP_H_VIA, via_hdr->next)) != NULL) {
via_hdr_last = via_hdr;
}
alloc_size = pj_strlen(&via_hdr_last->sent_by.host) + 1;
via_addr = ast_alloca(alloc_size);
ast_copy_pj_str(via_addr, &via_hdr_last->sent_by.host, alloc_size);
via_port=via_hdr_last->sent_by.port;
}
call_id_hdr = (pjsip_cid_hdr*) pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_CALL_ID, NULL);
if (call_id_hdr) {
alloc_size = pj_strlen(&call_id_hdr->id) + 1;
call_id = ast_alloca(alloc_size);
ast_copy_pj_str(call_id, &call_id_hdr->id, alloc_size);
}
/* Iterate each provided Contact header and add, update, or delete */
while ((contact_hdr = pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_CONTACT, contact_hdr ? contact_hdr->next : NULL))) {
int expiration;
char contact_uri[pjsip_max_url_size];
RAII_VAR(struct ast_sip_contact *, contact, NULL, ao2_cleanup);
if (contact_hdr->star) {
/* A star means to unregister everything, so do so for the possible contacts */
ao2_callback(contacts, OBJ_NODATA | OBJ_MULTIPLE, registrar_delete_contact, (void *)aor_name);
break;
}
if (!PJSIP_URI_SCHEME_IS_SIP(contact_hdr->uri) && !PJSIP_URI_SCHEME_IS_SIPS(contact_hdr->uri)) {
/* This registrar only currently supports sip: and sips: URI schemes */
continue;
}
expiration = registrar_get_expiration(aor, contact_hdr, rdata);
details.uri = pjsip_uri_get_uri(contact_hdr->uri);
pjsip_uri_print(PJSIP_URI_IN_CONTACT_HDR, details.uri, contact_uri, sizeof(contact_uri));
if (!(contact = ao2_callback(contacts, OBJ_UNLINK, registrar_find_contact, &details))) {
/* If they are actually trying to delete a contact that does not exist... be forgiving */
if (!expiration) {
ast_verb(3, "Attempted to remove non-existent contact '%s' from AOR '%s' by request\n",
contact_uri, aor_name);
continue;
}
if (ast_sip_location_add_contact_nolock(aor, contact_uri, ast_tvadd(ast_tvnow(),
ast_samp2tv(expiration, 1)), path_str ? ast_str_buffer(path_str) : NULL,
user_agent, via_addr, via_port, call_id, endpoint)) {
ast_log(LOG_ERROR, "Unable to bind contact '%s' to AOR '%s'\n",
contact_uri, aor_name);
continue;
}
ast_verb(3, "Added contact '%s' to AOR '%s' with expiration of %d seconds\n",
contact_uri, aor_name, expiration);
ast_test_suite_event_notify("AOR_CONTACT_ADDED",
"Contact: %s\r\n"
"AOR: %s\r\n"
"Expiration: %d\r\n"
"UserAgent: %s",
contact_uri,
aor_name,
expiration,
user_agent);
} else if (expiration) {
struct ast_sip_contact *contact_update;
contact_update = ast_sorcery_copy(ast_sip_get_sorcery(), contact);
if (!contact_update) {
ast_log(LOG_ERROR, "Failed to update contact '%s' expiration time to %d seconds.\n",
contact->uri, expiration);
continue;
}
contact_update->expiration_time = ast_tvadd(ast_tvnow(), ast_samp2tv(expiration, 1));
contact_update->qualify_frequency = aor->qualify_frequency;
contact_update->authenticate_qualify = aor->authenticate_qualify;
if (path_str) {
ast_string_field_set(contact_update, path, ast_str_buffer(path_str));
}
if (user_agent) {
ast_string_field_set(contact_update, user_agent, user_agent);
}
if (!ast_strlen_zero(ast_config_AST_SYSTEM_NAME)) {
ast_string_field_set(contact_update, reg_server, ast_config_AST_SYSTEM_NAME);
}
if (ast_sip_location_update_contact(contact_update)) {
ast_log(LOG_ERROR, "Failed to update contact '%s' expiration time to %d seconds.\n",
contact->uri, expiration);
ast_sip_location_delete_contact(contact);
continue;
}
ast_debug(3, "Refreshed contact '%s' on AOR '%s' with new expiration of %d seconds\n",
contact_uri, aor_name, expiration);
ast_test_suite_event_notify("AOR_CONTACT_REFRESHED",
"Contact: %s\r\n"
"AOR: %s\r\n"
"Expiration: %d\r\n"
"UserAgent: %s",
contact_uri,
aor_name,
expiration,
contact_update->user_agent);
ao2_cleanup(contact_update);
} else {
/* We want to report the user agent that was actually in the removed contact */
ast_sip_location_delete_contact(contact);
ast_verb(3, "Removed contact '%s' from AOR '%s' due to request\n", contact_uri, aor_name);
ast_test_suite_event_notify("AOR_CONTACT_REMOVED",
"Contact: %s\r\n"
"AOR: %s\r\n"
"UserAgent: %s",
contact_uri,
aor_name,
contact->user_agent);
}
}
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
/* If the AOR is configured to remove any existing contacts that have not been updated/added as a result of this REGISTER
* do so
*/
if (aor->remove_existing) {
ao2_callback(contacts, OBJ_NODATA | OBJ_MULTIPLE, registrar_delete_contact, NULL);
}
/* Re-retrieve contacts. Caller will clean up the original container. */
contacts = ast_sip_location_retrieve_aor_contacts_nolock(aor);
response_contact = ao2_callback(contacts, 0, NULL, NULL);
/* Send a response containing all of the contacts (including static) that are present on this AOR */
if (ast_sip_create_response(rdata, 200, response_contact, &tdata) != PJ_SUCCESS) {
ao2_cleanup(response_contact);
ao2_cleanup(contacts);
return PJ_TRUE;
}
ao2_cleanup(response_contact);
/* Add the date header to the response, some UAs use this to set their date and time */
registrar_add_date_header(tdata);
ao2_callback(contacts, 0, registrar_add_contact, tdata);
ao2_cleanup(contacts);
if ((expires_hdr = pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_EXPIRES, NULL))) {
expires_hdr = pjsip_expires_hdr_create(tdata->pool, registrar_get_expiration(aor, NULL, rdata));
pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr*)expires_hdr);
}
ast_sip_send_stateful_response(rdata, tdata, endpoint);
return PJ_TRUE;
}
/* Worker thread for loop transport. */
static int loop_transport_worker_thread(void *arg)
{
struct loop_transport *loop = arg;
struct recv_list r;
struct send_list s;
pj_list_init(&r);
pj_list_init(&s);
while (!loop->thread_quit_flag) {
pj_time_val now;
pj_thread_sleep(1);
pj_gettimeofday(&now);
pj_lock_acquire(loop->base.lock);
/* Move expired send notification to local list. */
while (!pj_list_empty(&loop->send_list)) {
struct send_list *node = loop->send_list.next;
/* Break when next node time is greater than now. */
if (PJ_TIME_VAL_GTE(node->sent_time, now))
break;
/* Delete this from the list. */
pj_list_erase(node);
/* Add to local list. */
pj_list_push_back(&s, node);
}
/* Move expired "incoming" packet to local list. */
while (!pj_list_empty(&loop->recv_list)) {
struct recv_list *node = loop->recv_list.next;
/* Break when next node time is greater than now. */
if (PJ_TIME_VAL_GTE(node->rdata.pkt_info.timestamp, now))
break;
/* Delete this from the list. */
pj_list_erase(node);
/* Add to local list. */
pj_list_push_back(&r, node);
}
pj_lock_release(loop->base.lock);
/* Process send notification and incoming packet notification
* without holding down the loop's mutex.
*/
while (!pj_list_empty(&s)) {
struct send_list *node = s.next;
pj_list_erase(node);
/* Notify callback. */
if (node->callback) {
(*node->callback)(&loop->base, node->token, node->sent);
}
/* Decrement tdata reference counter. */
pjsip_tx_data_dec_ref(node->tdata);
}
/* Process "incoming" packet. */
while (!pj_list_empty(&r)) {
struct recv_list *node = r.next;
pj_ssize_t size_eaten;
pj_list_erase(node);
/* Notify transport manager about the "incoming packet" */
size_eaten = pjsip_tpmgr_receive_packet(loop->base.tpmgr,
&node->rdata);
/* Must "eat" all the packets. */
pj_assert(size_eaten == node->rdata.pkt_info.len);
/* Done. */
pjsip_endpt_release_pool(loop->base.endpt,
node->rdata.tp_info.pool);
}
}
return 0;
}
/* Start loop transport. */
PJ_DEF(pj_status_t) pjsip_loop_start( pjsip_endpoint *endpt,
pjsip_transport **transport)
{
pj_pool_t *pool;
struct loop_transport *loop;
pj_status_t status;
/* Create pool. */
pool = pjsip_endpt_create_pool(endpt, "loop", 4000, 4000);
if (!pool)
return PJ_ENOMEM;
/* Create the loop structure. */
loop = pj_pool_zalloc(pool, sizeof(struct loop_transport));
/* Initialize transport properties. */
pj_ansi_snprintf(loop->base.obj_name, sizeof(loop->base.obj_name),
"loop%p", loop);
loop->base.pool = pool;
status = pj_atomic_create(pool, 0, &loop->base.ref_cnt);
if (status != PJ_SUCCESS)
goto on_error;
status = pj_lock_create_recursive_mutex(pool, "loop", &loop->base.lock);
if (status != PJ_SUCCESS)
goto on_error;
loop->base.key.type = PJSIP_TRANSPORT_LOOP_DGRAM;
//loop->base.key.rem_addr.sa_family = PJ_AF_INET;
loop->base.type_name = "LOOP-DGRAM";
loop->base.info = "LOOP-DGRAM";
loop->base.flag = PJSIP_TRANSPORT_DATAGRAM;
loop->base.local_name.host = pj_str(ADDR_LOOP_DGRAM);
loop->base.local_name.port =
pjsip_transport_get_default_port_for_type(loop->base.key.type);
loop->base.addr_len = sizeof(pj_sockaddr_in);
loop->base.endpt = endpt;
loop->base.tpmgr = pjsip_endpt_get_tpmgr(endpt);
loop->base.send_msg = &loop_send_msg;
loop->base.destroy = &loop_destroy;
pj_list_init(&loop->recv_list);
pj_list_init(&loop->send_list);
/* Create worker thread. */
status = pj_thread_create(pool, "loop",
&loop_transport_worker_thread, loop, 0,
PJ_THREAD_SUSPENDED, &loop->thread);
if (status != PJ_SUCCESS)
goto on_error;
/* Register to transport manager. */
status = pjsip_transport_register( loop->base.tpmgr, &loop->base);
if (status != PJ_SUCCESS)
goto on_error;
/* Start the thread. */
status = pj_thread_resume(loop->thread);
if (status != PJ_SUCCESS)
goto on_error;
/*
* Done.
*/
if (transport)
*transport = &loop->base;
return PJ_SUCCESS;
on_error:
if (loop->base.lock)
pj_lock_destroy(loop->base.lock);
if (loop->thread)
pj_thread_destroy(loop->thread);
if (loop->base.ref_cnt)
pj_atomic_destroy(loop->base.ref_cnt);
pjsip_endpt_release_pool(endpt, loop->pool);
return status;
}
static int uri_benchmark(unsigned *p_parse, unsigned *p_print, unsigned *p_cmp)
{
unsigned i, loop;
pj_status_t status = PJ_SUCCESS;
pj_timestamp zero;
pj_time_val elapsed;
pj_highprec_t avg_parse, avg_print, avg_cmp, kbytes;
pj_bzero(&var, sizeof(var));
zero.u32.hi = zero.u32.lo = 0;
var.parse_len = var.print_len = var.cmp_len = 0;
var.parse_time.u32.hi = var.parse_time.u32.lo = 0;
var.print_time.u32.hi = var.print_time.u32.lo = 0;
var.cmp_time.u32.hi = var.cmp_time.u32.lo = 0;
for (loop=0; loop<LOOP_COUNT; ++loop) {
for (i=0; i<PJ_ARRAY_SIZE(uri_test_array); ++i) {
pj_pool_t *pool;
pool = pjsip_endpt_create_pool(endpt, "", POOL_SIZE, POOL_SIZE);
status = do_uri_test(pool, &uri_test_array[i]);
pjsip_endpt_release_pool(endpt, pool);
if (status != PJ_SUCCESS) {
PJ_LOG(3,(THIS_FILE, " error %d when testing entry %d",
status, i));
pjsip_endpt_release_pool(endpt, pool);
goto on_return;
}
}
}
kbytes = var.parse_len;
pj_highprec_mod(kbytes, 1000000);
pj_highprec_div(kbytes, 100000);
elapsed = pj_elapsed_time(&zero, &var.parse_time);
avg_parse = pj_elapsed_usec(&zero, &var.parse_time);
pj_highprec_mul(avg_parse, AVERAGE_URL_LEN);
pj_highprec_div(avg_parse, var.parse_len);
if (avg_parse == 0)
avg_parse = 1;
avg_parse = 1000000 / avg_parse;
PJ_LOG(3,(THIS_FILE,
" %u.%u MB of urls parsed in %d.%03ds (avg=%d urls/sec)",
(unsigned)(var.parse_len/1000000), (unsigned)kbytes,
elapsed.sec, elapsed.msec,
(unsigned)avg_parse));
*p_parse = (unsigned)avg_parse;
kbytes = var.print_len;
pj_highprec_mod(kbytes, 1000000);
pj_highprec_div(kbytes, 100000);
elapsed = pj_elapsed_time(&zero, &var.print_time);
avg_print = pj_elapsed_usec(&zero, &var.print_time);
pj_highprec_mul(avg_print, AVERAGE_URL_LEN);
pj_highprec_div(avg_print, var.parse_len);
if (avg_print == 0)
avg_print = 1;
avg_print = 1000000 / avg_print;
PJ_LOG(3,(THIS_FILE,
" %u.%u MB of urls printed in %d.%03ds (avg=%d urls/sec)",
(unsigned)(var.print_len/1000000), (unsigned)kbytes,
elapsed.sec, elapsed.msec,
(unsigned)avg_print));
*p_print = (unsigned)avg_print;
kbytes = var.cmp_len;
pj_highprec_mod(kbytes, 1000000);
pj_highprec_div(kbytes, 100000);
elapsed = pj_elapsed_time(&zero, &var.cmp_time);
avg_cmp = pj_elapsed_usec(&zero, &var.cmp_time);
pj_highprec_mul(avg_cmp, AVERAGE_URL_LEN);
pj_highprec_div(avg_cmp, var.cmp_len);
if (avg_cmp == 0)
avg_cmp = 1;
avg_cmp = 1000000 / avg_cmp;
PJ_LOG(3,(THIS_FILE,
" %u.%u MB of urls compared in %d.%03ds (avg=%d urls/sec)",
(unsigned)(var.cmp_len/1000000), (unsigned)kbytes,
elapsed.sec, elapsed.msec,
(unsigned)avg_cmp));
*p_cmp = (unsigned)avg_cmp;
on_return:
return status;
}
/*
* udp_destroy()
*
* This function is called by transport manager (by transport->destroy()).
*/
static pj_status_t udp_destroy( pjsip_transport *transport )
{
struct udp_transport *tp = (struct udp_transport*)transport;
int i;
/* Mark this transport as closing. */
tp->is_closing = 1;
/* Cancel all pending operations. */
/* blp: NO NO NO...
* No need to post queued completion as we poll the ioqueue until
* we've got events anyway. Posting completion will only cause
* callback to be called twice with IOCP: one for the post completion
* and another one for closing the socket.
*
for (i=0; i<tp->rdata_cnt; ++i) {
pj_ioqueue_post_completion(tp->key,
&tp->rdata[i]->tp_info.op_key.op_key, -1);
}
*/
/* Unregister from ioqueue. */
if (tp->key) {
pj_ioqueue_unregister(tp->key);
tp->key = NULL;
} else {
/* Close socket. */
if (tp->sock && tp->sock != PJ_INVALID_SOCKET) {
pj_sock_close(tp->sock);
tp->sock = PJ_INVALID_SOCKET;
}
}
/* Must poll ioqueue because IOCP calls the callback when socket
* is closed. We poll the ioqueue until all pending callbacks
* have been called.
*/
for (i=0; i<50 && tp->is_closing < 1+tp->rdata_cnt; ++i) {
int cnt;
pj_time_val timeout = {0, 1};
cnt = pj_ioqueue_poll(pjsip_endpt_get_ioqueue(transport->endpt),
&timeout);
if (cnt == 0)
break;
}
/* Destroy rdata */
for (i=0; i<tp->rdata_cnt; ++i) {
pj_pool_release(tp->rdata[i]->tp_info.pool);
}
/* Destroy reference counter. */
if (tp->base.ref_cnt)
pj_atomic_destroy(tp->base.ref_cnt);
/* Destroy lock */
if (tp->base.lock)
pj_lock_destroy(tp->base.lock);
/* Destroy pool. */
pjsip_endpt_release_pool(tp->base.endpt, tp->base.pool);
return PJ_SUCCESS;
}
int transport_rt_test( pjsip_transport_type_e tp_type,
pjsip_transport *ref_tp,
char *target_url,
int *lost)
{
enum { THREADS = 4, INTERVAL = 10 };
int i;
pj_status_t status;
pj_pool_t *pool;
pj_bool_t logger_enabled;
pj_timestamp zero_time, total_time;
unsigned usec_rt;
unsigned total_sent;
unsigned total_recv;
PJ_UNUSED_ARG(tp_type);
PJ_UNUSED_ARG(ref_tp);
PJ_LOG(3,(THIS_FILE, " multithreaded round-trip test (%d threads)...",
THREADS));
PJ_LOG(3,(THIS_FILE, " this will take approx %d seconds, please wait..",
INTERVAL));
/* Make sure msg logger is disabled. */
logger_enabled = msg_logger_set_enabled(0);
/* Register module (if not yet registered) */
if (rt_module.id == -1) {
status = pjsip_endpt_register_module( endpt, &rt_module );
if (status != PJ_SUCCESS) {
app_perror(" error: unable to register module", status);
return -600;
}
}
/* Create pool for this test. */
pool = pjsip_endpt_create_pool(endpt, NULL, 4000, 4000);
if (!pool)
return -610;
/* Initialize static test data. */
pj_ansi_strcpy(rt_target_uri, target_url);
rt_call_id = pj_str("RT-Call-Id/");
rt_stop = PJ_FALSE;
/* Initialize thread data. */
for (i=0; i<THREADS; ++i) {
char buf[1];
pj_str_t str_id;
pj_strset(&str_id, buf, 1);
pj_bzero(&rt_test_data[i], sizeof(rt_test_data[i]));
/* Init timer entry */
rt_test_data[i].tx_timer.id = i;
rt_test_data[i].tx_timer.cb = &rt_tx_timer;
rt_test_data[i].timeout_timer.id = i;
rt_test_data[i].timeout_timer.cb = &rt_timeout_timer;
/* Generate Call-ID for each thread. */
rt_test_data[i].call_id.ptr = (char*) pj_pool_alloc(pool, rt_call_id.slen+1);
pj_strcpy(&rt_test_data[i].call_id, &rt_call_id);
buf[0] = '0' + (char)i;
pj_strcat(&rt_test_data[i].call_id, &str_id);
/* Init mutex. */
status = pj_mutex_create_recursive(pool, "rt", &rt_test_data[i].mutex);
if (status != PJ_SUCCESS) {
app_perror(" error: unable to create mutex", status);
return -615;
}
/* Create thread, suspended. */
status = pj_thread_create(pool, "rttest%p", &rt_worker_thread, (void*)(long)i, 0,
PJ_THREAD_SUSPENDED, &rt_test_data[i].thread);
if (status != PJ_SUCCESS) {
app_perror(" error: unable to create thread", status);
return -620;
}
}
/* Start threads! */
for (i=0; i<THREADS; ++i) {
pj_time_val delay = {0,0};
pj_thread_resume(rt_test_data[i].thread);
/* Schedule first message transmissions. */
rt_test_data[i].tx_timer.user_data = (void*)1;
pjsip_endpt_schedule_timer(endpt, &rt_test_data[i].tx_timer, &delay);
}
/* Sleep for some time. */
pj_thread_sleep(INTERVAL * 1000);
/* Signal thread to stop. */
rt_stop = PJ_TRUE;
/* Wait threads to complete. */
for (i=0; i<THREADS; ++i) {
pj_thread_join(rt_test_data[i].thread);
pj_thread_destroy(rt_test_data[i].thread);
}
/* Destroy rt_test_data */
for (i=0; i<THREADS; ++i) {
pj_mutex_destroy(rt_test_data[i].mutex);
pjsip_endpt_cancel_timer(endpt, &rt_test_data[i].timeout_timer);
}
/* Gather statistics. */
pj_bzero(&total_time, sizeof(total_time));
pj_bzero(&zero_time, sizeof(zero_time));
usec_rt = total_sent = total_recv = 0;
for (i=0; i<THREADS; ++i) {
total_sent += rt_test_data[i].sent_request_count;
total_recv += rt_test_data[i].recv_response_count;
pj_add_timestamp(&total_time, &rt_test_data[i].total_rt_time);
}
/* Display statistics. */
if (total_recv)
total_time.u64 = total_time.u64/total_recv;
else
total_time.u64 = 0;
usec_rt = pj_elapsed_usec(&zero_time, &total_time);
PJ_LOG(3,(THIS_FILE, " done."));
PJ_LOG(3,(THIS_FILE, " total %d messages sent", total_sent));
PJ_LOG(3,(THIS_FILE, " average round-trip=%d usec", usec_rt));
pjsip_endpt_release_pool(endpt, pool);
*lost = total_sent-total_recv;
/* Flush events. */
flush_events(500);
/* Restore msg logger. */
msg_logger_set_enabled(logger_enabled);
return 0;
}
static void register_aor_core(pjsip_rx_data *rdata,
struct ast_sip_endpoint *endpoint,
struct ast_sip_aor *aor,
const char *aor_name,
struct ao2_container *contacts,
struct aor_core_response *response)
{
static const pj_str_t USER_AGENT = { "User-Agent", 10 };
int added = 0;
int updated = 0;
int deleted = 0;
int permanent = 0;
int contact_count;
struct ao2_container *existing_contacts = NULL;
pjsip_contact_hdr *contact_hdr = (pjsip_contact_hdr *)&rdata->msg_info.msg->hdr;
struct registrar_contact_details details = { 0, };
pjsip_tx_data *tdata;
RAII_VAR(struct ast_str *, path_str, NULL, ast_free);
struct ast_sip_contact *response_contact;
char *user_agent = NULL;
pjsip_user_agent_hdr *user_agent_hdr;
pjsip_expires_hdr *expires_hdr;
pjsip_via_hdr *via_hdr;
pjsip_via_hdr *via_hdr_last;
char *via_addr = NULL;
int via_port = 0;
pjsip_cid_hdr *call_id_hdr;
char *call_id = NULL;
size_t alloc_size;
/* We create a single pool and use it throughout this function where we need one */
details.pool = pjsip_endpt_create_pool(ast_sip_get_pjsip_endpoint(),
"Contact Comparison", 1024, 256);
if (!details.pool) {
response->code = 500;
return;
}
/* If there are any permanent contacts configured on the AOR we need to take them
* into account when counting contacts.
*/
if (aor->permanent_contacts) {
permanent = ao2_container_count(aor->permanent_contacts);
}
if (registrar_validate_contacts(rdata, details.pool, contacts, aor, permanent, &added, &updated, &deleted)) {
/* The provided Contact headers do not conform to the specification */
ast_sip_report_failed_acl(endpoint, rdata, "registrar_invalid_contacts_provided");
ast_log(LOG_WARNING, "Failed to validate contacts in REGISTER request from '%s'\n",
ast_sorcery_object_get_id(endpoint));
response->code = 400;
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
return;
}
if (registrar_validate_path(rdata, aor, &path_str)) {
/* Ensure that intervening proxies did not make invalid modifications to the request */
ast_log(LOG_WARNING, "Invalid modifications made to REGISTER request from '%s' by intervening proxy\n",
ast_sorcery_object_get_id(endpoint));
response->code = 420;
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
return;
}
if (aor->remove_existing) {
/* Cumulative number of contacts affected by this registration */
contact_count = MAX(updated + added - deleted, 0);
/* We need to keep track of only existing contacts so we can later
* remove them if need be.
*/
existing_contacts = ao2_container_alloc_list(AO2_ALLOC_OPT_LOCK_NOLOCK, 0,
NULL, ast_sorcery_object_id_compare);
if (!existing_contacts) {
response->code = 500;
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
return;
}
ao2_callback(contacts, OBJ_NODATA, registrar_add_non_permanent, existing_contacts);
} else {
/* Total contacts after this registration */
contact_count = ao2_container_count(contacts) - permanent + added - deleted;
}
if (contact_count > aor->max_contacts) {
/* Enforce the maximum number of contacts */
ast_sip_report_failed_acl(endpoint, rdata, "registrar_attempt_exceeds_maximum_configured_contacts");
ast_log(LOG_WARNING, "Registration attempt from endpoint '%s' to AOR '%s' will exceed max contacts of %u\n",
ast_sorcery_object_get_id(endpoint), aor_name, aor->max_contacts);
response->code = 403;
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
ao2_cleanup(existing_contacts);
return;
}
user_agent_hdr = pjsip_msg_find_hdr_by_name(rdata->msg_info.msg, &USER_AGENT, NULL);
if (user_agent_hdr) {
alloc_size = pj_strlen(&user_agent_hdr->hvalue) + 1;
user_agent = ast_alloca(alloc_size);
ast_copy_pj_str(user_agent, &user_agent_hdr->hvalue, alloc_size);
}
/* Find the first Via header */
via_hdr = via_hdr_last = (pjsip_via_hdr*) pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_VIA, NULL);
if (via_hdr) {
/* Find the last Via header */
while ( (via_hdr = (pjsip_via_hdr*) pjsip_msg_find_hdr(rdata->msg_info.msg,
PJSIP_H_VIA, via_hdr->next)) != NULL) {
via_hdr_last = via_hdr;
}
alloc_size = pj_strlen(&via_hdr_last->sent_by.host) + 1;
via_addr = ast_alloca(alloc_size);
ast_copy_pj_str(via_addr, &via_hdr_last->sent_by.host, alloc_size);
via_port=via_hdr_last->sent_by.port;
}
call_id_hdr = (pjsip_cid_hdr*) pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_CALL_ID, NULL);
if (call_id_hdr) {
alloc_size = pj_strlen(&call_id_hdr->id) + 1;
call_id = ast_alloca(alloc_size);
ast_copy_pj_str(call_id, &call_id_hdr->id, alloc_size);
}
/* Iterate each provided Contact header and add, update, or delete */
for (; (contact_hdr = (pjsip_contact_hdr *) pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_CONTACT, contact_hdr->next)); pj_pool_reset(details.pool)) {
int expiration;
char contact_uri[pjsip_max_url_size];
RAII_VAR(struct ast_sip_contact *, contact, NULL, ao2_cleanup);
if (contact_hdr->star) {
/* A star means to unregister everything, so do so for the possible contacts */
ao2_callback(contacts, OBJ_NODATA | OBJ_UNLINK | OBJ_MULTIPLE,
registrar_delete_contact, (void *)aor_name);
/* If we are keeping track of existing contacts for removal then, well, there is
* absolutely nothing left so no need to try to remove any.
*/
if (existing_contacts) {
ao2_ref(existing_contacts, -1);
existing_contacts = NULL;
}
break;
}
if (!PJSIP_URI_SCHEME_IS_SIP(contact_hdr->uri) && !PJSIP_URI_SCHEME_IS_SIPS(contact_hdr->uri)) {
/* This registrar only currently supports sip: and sips: URI schemes */
continue;
}
expiration = registrar_get_expiration(aor, contact_hdr, rdata);
details.uri = pjsip_uri_get_uri(contact_hdr->uri);
pjsip_uri_print(PJSIP_URI_IN_CONTACT_HDR, details.uri, contact_uri, sizeof(contact_uri));
contact = ao2_callback(contacts, OBJ_UNLINK, registrar_find_contact, &details);
/* If a contact was returned and we need to keep track of existing contacts then it
* should be removed.
*/
if (contact && existing_contacts) {
ao2_unlink(existing_contacts, contact);
}
if (!contact) {
int prune_on_boot;
/* If they are actually trying to delete a contact that does not exist... be forgiving */
if (!expiration) {
ast_verb(3, "Attempted to remove non-existent contact '%s' from AOR '%s' by request\n",
contact_uri, aor_name);
continue;
}
prune_on_boot = !ast_sip_will_uri_survive_restart(details.uri, endpoint, rdata);
contact = ast_sip_location_create_contact(aor, contact_uri,
ast_tvadd(ast_tvnow(), ast_samp2tv(expiration, 1)),
path_str ? ast_str_buffer(path_str) : NULL,
user_agent, via_addr, via_port, call_id, prune_on_boot, endpoint);
if (!contact) {
ast_log(LOG_ERROR, "Unable to bind contact '%s' to AOR '%s'\n",
contact_uri, aor_name);
continue;
}
if (prune_on_boot) {
const char *contact_name;
struct contact_transport_monitor *monitor;
/*
* Monitor the transport in case it gets disconnected because
* the contact won't be valid anymore if that happens.
*/
contact_name = ast_sorcery_object_get_id(contact);
monitor = ao2_alloc_options(sizeof(*monitor) + 2 + strlen(aor_name)
+ strlen(contact_name), NULL, AO2_ALLOC_OPT_LOCK_NOLOCK);
if (monitor) {
strcpy(monitor->aor_name, aor_name);/* Safe */
monitor->contact_name = monitor->aor_name + strlen(aor_name) + 1;
strcpy(monitor->contact_name, contact_name);/* Safe */
ast_sip_transport_monitor_register(rdata->tp_info.transport,
register_contact_transport_shutdown_cb, monitor);
ao2_ref(monitor, -1);
}
}
ast_verb(3, "Added contact '%s' to AOR '%s' with expiration of %d seconds\n",
contact_uri, aor_name, expiration);
ast_test_suite_event_notify("AOR_CONTACT_ADDED",
"Contact: %s\r\n"
"AOR: %s\r\n"
"Expiration: %d\r\n"
"UserAgent: %s",
contact_uri,
aor_name,
expiration,
user_agent);
ao2_link(contacts, contact);
} else if (expiration) {
struct ast_sip_contact *contact_update;
contact_update = ast_sorcery_copy(ast_sip_get_sorcery(), contact);
if (!contact_update) {
ast_log(LOG_ERROR, "Failed to update contact '%s' expiration time to %d seconds.\n",
contact->uri, expiration);
continue;
}
contact_update->expiration_time = ast_tvadd(ast_tvnow(), ast_samp2tv(expiration, 1));
contact_update->qualify_frequency = aor->qualify_frequency;
contact_update->authenticate_qualify = aor->authenticate_qualify;
if (path_str) {
ast_string_field_set(contact_update, path, ast_str_buffer(path_str));
}
if (user_agent) {
ast_string_field_set(contact_update, user_agent, user_agent);
}
if (!ast_strlen_zero(ast_config_AST_SYSTEM_NAME)) {
ast_string_field_set(contact_update, reg_server, ast_config_AST_SYSTEM_NAME);
}
if (ast_sip_location_update_contact(contact_update)) {
ast_log(LOG_ERROR, "Failed to update contact '%s' expiration time to %d seconds.\n",
contact->uri, expiration);
ast_sip_location_delete_contact(contact);
continue;
}
ast_debug(3, "Refreshed contact '%s' on AOR '%s' with new expiration of %d seconds\n",
contact_uri, aor_name, expiration);
ast_test_suite_event_notify("AOR_CONTACT_REFRESHED",
"Contact: %s\r\n"
"AOR: %s\r\n"
"Expiration: %d\r\n"
"UserAgent: %s",
contact_uri,
aor_name,
expiration,
contact_update->user_agent);
ao2_link(contacts, contact_update);
ao2_cleanup(contact_update);
} else {
if (contact->prune_on_boot) {
struct contact_transport_monitor *monitor;
const char *contact_name =
ast_sorcery_object_get_id(contact);
monitor = ast_alloca(sizeof(*monitor) + 2 + strlen(aor_name)
+ strlen(contact_name));
strcpy(monitor->aor_name, aor_name);/* Safe */
monitor->contact_name = monitor->aor_name + strlen(aor_name) + 1;
strcpy(monitor->contact_name, contact_name);/* Safe */
ast_sip_transport_monitor_unregister(rdata->tp_info.transport,
register_contact_transport_shutdown_cb, monitor, contact_transport_monitor_matcher);
}
/* We want to report the user agent that was actually in the removed contact */
ast_sip_location_delete_contact(contact);
ast_verb(3, "Removed contact '%s' from AOR '%s' due to request\n", contact_uri, aor_name);
ast_test_suite_event_notify("AOR_CONTACT_REMOVED",
"Contact: %s\r\n"
"AOR: %s\r\n"
"UserAgent: %s",
contact_uri,
aor_name,
contact->user_agent);
}
}
pjsip_endpt_release_pool(ast_sip_get_pjsip_endpoint(), details.pool);
/*
* If the AOR is configured to remove any contacts over max_contacts
* that have not been updated/added/deleted as a result of this
* REGISTER do so.
*
* The existing contacts container holds all contacts that were not
* involved in this REGISTER.
* The contacts container holds the current contacts of the AOR.
*/
if (aor->remove_existing && existing_contacts) {
/* Total contacts after this registration */
contact_count = ao2_container_count(existing_contacts) + updated + added;
if (contact_count > aor->max_contacts) {
/* Remove excess existing contacts that expire the soonest */
remove_excess_contacts(existing_contacts, contacts, contact_count - aor->max_contacts);
}
ao2_ref(existing_contacts, -1);
}
response_contact = ao2_callback(contacts, 0, NULL, NULL);
/* Send a response containing all of the contacts (including static) that are present on this AOR */
if (ast_sip_create_response(rdata, 200, response_contact, &tdata) != PJ_SUCCESS) {
ao2_cleanup(response_contact);
ao2_cleanup(contacts);
response->code = 500;
return;
}
ao2_cleanup(response_contact);
/* Add the date header to the response, some UAs use this to set their date and time */
registrar_add_date_header(tdata);
ao2_callback(contacts, 0, registrar_add_contact, tdata);
if ((expires_hdr = pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_EXPIRES, NULL))) {
expires_hdr = pjsip_expires_hdr_create(tdata->pool, registrar_get_expiration(aor, NULL, rdata));
pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr*)expires_hdr);
}
response->tdata = tdata;
}