static int get_write_timeout(void)
{
int write_timeout = -1;
struct ao2_container *transport_states;
transport_states = ast_sip_get_transport_states();
if (transport_states) {
struct ao2_iterator it_transport_states = ao2_iterator_init(transport_states, 0);
struct ast_sip_transport_state *transport_state;
for (; (transport_state = ao2_iterator_next(&it_transport_states)); ao2_cleanup(transport_state)) {
struct ast_sip_transport *transport;
if (transport_state->type != AST_TRANSPORT_WS && transport_state->type != AST_TRANSPORT_WSS) {
continue;
}
transport = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", transport_state->id);
ast_debug(5, "Found %s transport with write timeout: %d\n",
transport->type == AST_TRANSPORT_WS ? "WS" : "WSS",
transport->write_timeout);
write_timeout = MAX(write_timeout, transport->write_timeout);
}
ao2_iterator_destroy(&it_transport_states);
ao2_cleanup(transport_states);
}
if (write_timeout < 0) {
write_timeout = AST_DEFAULT_WEBSOCKET_WRITE_TIMEOUT;
}
ast_debug(1, "Write timeout for WS/WSS transports: %d\n", write_timeout);
return write_timeout;
}
static struct ast_sip_endpoint *anonymous_identify(pjsip_rx_data *rdata)
{
char domain_name[DOMAIN_NAME_LEN + 1];
struct ast_sip_endpoint *endpoint;
if (get_endpoint_details(rdata, domain_name, sizeof(domain_name))) {
return NULL;
}
if (!ast_sip_get_disable_multi_domain()) {
struct ast_sip_domain_alias *alias;
struct ao2_container *transport_states;
struct ast_sip_transport_state *transport_state = NULL;
struct ast_sip_transport *transport = NULL;
char id[sizeof("anonymous@") + DOMAIN_NAME_LEN];
/* Attempt to find the endpoint given the name and domain provided */
snprintf(id, sizeof(id), "anonymous@%s", domain_name);
endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
if (endpoint) {
goto done;
}
/* See if an alias exists for the domain provided */
alias = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "domain_alias",
domain_name);
if (alias) {
snprintf(id, sizeof(id), "anonymous@%s", alias->domain);
ao2_ref(alias, -1);
endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
if (endpoint) {
goto done;
}
}
/* See if the transport this came in on has a provided domain */
if ((transport_states = ast_sip_get_transport_states())
&& (transport_state = ao2_callback(transport_states, 0, find_transport_state_in_use, rdata))
&& (transport = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", transport_state->id))
&& !ast_strlen_zero(transport->domain)) {
snprintf(id, sizeof(id), "anonymous@%s", transport->domain);
endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
}
ao2_cleanup(transport);
ao2_cleanup(transport_state);
ao2_cleanup(transport_states);
if (endpoint) {
goto done;
}
}
/* Fall back to no domain */
endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", "anonymous");
done:
if (endpoint) {
ast_debug(3, "Retrieved anonymous endpoint '%s'\n", ast_sorcery_object_get_id(endpoint));
}
return endpoint;
}
static struct ast_sip_endpoint *find_endpoint(pjsip_rx_data *rdata, char *endpoint_name,
char *domain_name)
{
char id[AST_UUID_STR_LEN];
struct ast_sip_endpoint *endpoint;
RAII_VAR(struct ast_sip_domain_alias *, alias, NULL, ao2_cleanup);
RAII_VAR(struct ao2_container *, transport_states, NULL, ao2_cleanup);
RAII_VAR(struct ast_sip_transport_state *, transport_state, NULL, ao2_cleanup);
RAII_VAR(struct ast_sip_transport *, transport, NULL, ao2_cleanup);
if (!ast_sip_get_disable_multi_domain()) {
/* Attempt to find the endpoint given the name and domain provided */
snprintf(id, sizeof(id), "%s@%s", endpoint_name, domain_name);
if ((endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id))) {
return endpoint;
}
/* See if an alias exists for the domain provided */
if ((alias = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "domain_alias", domain_name))) {
snprintf(id, sizeof(id), "%s@%s", endpoint_name, alias->domain);
if ((endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id))) {
return endpoint;
}
}
/* See if the transport this came in on has a provided domain */
if ((transport_states = ast_sip_get_transport_states())
&& (transport_state = ao2_callback(transport_states, 0, find_transport_state_in_use, rdata))
&& (transport = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", transport_state->id))
&& !ast_strlen_zero(transport->domain)) {
snprintf(id, sizeof(id), "anonymous@%s", transport->domain);
if ((endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id))) {
return endpoint;
}
}
}
/* Fall back to no domain */
return ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", endpoint_name);
}
static pj_status_t nat_on_tx_message(pjsip_tx_data *tdata)
{
RAII_VAR(struct ao2_container *, transport_states, NULL, ao2_cleanup);
RAII_VAR(struct ast_sip_transport *, transport, NULL, ao2_cleanup);
RAII_VAR(struct ast_sip_transport_state *, transport_state, NULL, ao2_cleanup);
struct request_transport_details details = { 0, };
pjsip_via_hdr *via = NULL;
struct ast_sockaddr addr = { { 0, } };
pjsip_sip_uri *uri = NULL;
RAII_VAR(struct ao2_container *, hooks, NULL, ao2_cleanup);
/* If a transport selector is in use we know the transport or factory, so explicitly find it */
if (tdata->tp_sel.type == PJSIP_TPSELECTOR_TRANSPORT) {
details.transport = tdata->tp_sel.u.transport;
} else if (tdata->tp_sel.type == PJSIP_TPSELECTOR_LISTENER) {
details.factory = tdata->tp_sel.u.listener;
} else if (tdata->tp_info.transport->key.type == PJSIP_TRANSPORT_UDP || tdata->tp_info.transport->key.type == PJSIP_TRANSPORT_UDP6) {
/* Connectionless uses the same transport for all requests */
details.type = AST_TRANSPORT_UDP;
details.transport = tdata->tp_info.transport;
} else {
if (tdata->tp_info.transport->key.type == PJSIP_TRANSPORT_TCP) {
details.type = AST_TRANSPORT_TCP;
} else if (tdata->tp_info.transport->key.type == PJSIP_TRANSPORT_TLS) {
details.type = AST_TRANSPORT_TLS;
} else {
/* Unknown transport type, we can't map and thus can't apply NAT changes */
return PJ_SUCCESS;
}
if ((uri = nat_get_contact_sip_uri(tdata))) {
details.local_address = uri->host;
details.local_port = uri->port;
} else if ((tdata->msg->type == PJSIP_REQUEST_MSG) &&
(via = pjsip_msg_find_hdr(tdata->msg, PJSIP_H_VIA, NULL))) {
details.local_address = via->sent_by.host;
details.local_port = via->sent_by.port;
} else {
return PJ_SUCCESS;
}
if (!details.local_port) {
details.local_port = (details.type == AST_TRANSPORT_TLS) ? 5061 : 5060;
}
}
if (!(transport_states = ast_sip_get_transport_states())) {
return PJ_SUCCESS;
}
if (!(transport_state = ao2_callback(transport_states, 0, find_transport_state_in_use, &details))) {
return PJ_SUCCESS;
}
if (!(transport = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", transport_state->id))) {
return PJ_SUCCESS;
}
if ( !transport_state->localnet || ast_sockaddr_isnull(&transport_state->external_address)) {
return PJ_SUCCESS;
}
ast_sockaddr_parse(&addr, tdata->tp_info.dst_name, PARSE_PORT_FORBID);
ast_sockaddr_set_port(&addr, tdata->tp_info.dst_port);
/* See if where we are sending this request is local or not, and if not that we can get a Contact URI to modify */
if (ast_apply_ha(transport_state->localnet, &addr) != AST_SENSE_ALLOW) {
return PJ_SUCCESS;
}
/* Update the contact header with the external address */
if (uri || (uri = nat_get_contact_sip_uri(tdata))) {
pj_strdup2(tdata->pool, &uri->host, ast_sockaddr_stringify_host(&transport_state->external_address));
if (transport->external_signaling_port) {
uri->port = transport->external_signaling_port;
ast_debug(4, "Re-wrote Contact URI port to %d\n", uri->port);
}
}
/* Update the via header if relevant */
if ((tdata->msg->type == PJSIP_REQUEST_MSG) && (via || (via = pjsip_msg_find_hdr(tdata->msg, PJSIP_H_VIA, NULL)))) {
pj_strdup2(tdata->pool, &via->sent_by.host, ast_sockaddr_stringify_host(&transport_state->external_address));
if (transport->external_signaling_port) {
via->sent_by.port = transport->external_signaling_port;
}
}
/* Invoke any additional hooks that may be registered */
if ((hooks = ast_sorcery_retrieve_by_fields(ast_sip_get_sorcery(), "nat_hook", AST_RETRIEVE_FLAG_MULTIPLE | AST_RETRIEVE_FLAG_ALL, NULL))) {
struct nat_hook_details hook_details = {
.tdata = tdata,
.transport = transport,
};
ao2_callback(hooks, 0, nat_invoke_hook, &hook_details);
}
return PJ_SUCCESS;
}
