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pjproject/pjsip/src/pjsua-lib/pjsua_core.c

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/* $Id$ */
/*
* Copyright (C) 2003-2007 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <pjsua-lib/pjsua.h>
#include <pjsua-lib/pjsua_internal.h>
#define THIS_FILE "pjsua_core.c"
/* PJSUA application instance. */
struct pjsua_data pjsua_var;
PJ_DEF(struct pjsua_data*) pjsua_get_var(void)
{
return &pjsua_var;
}
/* Display error */
PJ_DEF(void) pjsua_perror( const char *sender, const char *title,
pj_status_t status)
{
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(3,(sender, "%s: %s [status=%d]", title, errmsg, status));
}
static void init_data()
{
unsigned i;
pj_bzero(&pjsua_var, sizeof(pjsua_var));
for (i=0; i<PJ_ARRAY_SIZE(pjsua_var.acc); ++i)
pjsua_var.acc[i].index = i;
for (i=0; i<PJ_ARRAY_SIZE(pjsua_var.tpdata); ++i)
pjsua_var.tpdata[i].index = i;
pjsua_var.stun_status = PJ_EUNKNOWN;
pjsua_var.nat_status = PJ_EPENDING;
}
PJ_DEF(void) pjsua_logging_config_default(pjsua_logging_config *cfg)
{
pj_bzero(cfg, sizeof(*cfg));
cfg->msg_logging = PJ_TRUE;
cfg->level = 5;
cfg->console_level = 4;
cfg->decor = PJ_LOG_HAS_SENDER | PJ_LOG_HAS_TIME |
PJ_LOG_HAS_MICRO_SEC | PJ_LOG_HAS_NEWLINE;
}
PJ_DEF(void) pjsua_logging_config_dup(pj_pool_t *pool,
pjsua_logging_config *dst,
const pjsua_logging_config *src)
{
pj_memcpy(dst, src, sizeof(*src));
pj_strdup_with_null(pool, &dst->log_filename, &src->log_filename);
}
PJ_DEF(void) pjsua_config_default(pjsua_config *cfg)
{
pj_bzero(cfg, sizeof(*cfg));
cfg->max_calls = 4;
cfg->thread_cnt = 1;
cfg->nat_type_in_sdp = 1;
}
PJ_DEF(void) pjsua_config_dup(pj_pool_t *pool,
pjsua_config *dst,
const pjsua_config *src)
{
unsigned i;
pj_memcpy(dst, src, sizeof(*src));
for (i=0; i<src->outbound_proxy_cnt; ++i) {
pj_strdup_with_null(pool, &dst->outbound_proxy[i],
&src->outbound_proxy[i]);
}
for (i=0; i<src->cred_count; ++i) {
pjsip_cred_dup(pool, &dst->cred_info[i], &src->cred_info[i]);
}
pj_strdup_with_null(pool, &dst->user_agent, &src->user_agent);
pj_strdup_with_null(pool, &dst->stun_domain, &src->stun_domain);
pj_strdup_with_null(pool, &dst->stun_host, &src->stun_host);
pj_strdup_with_null(pool, &dst->stun_relay_host, &src->stun_relay_host);
}
PJ_DEF(void) pjsua_msg_data_init(pjsua_msg_data *msg_data)
{
pj_bzero(msg_data, sizeof(*msg_data));
pj_list_init(&msg_data->hdr_list);
}
PJ_DEF(void) pjsua_transport_config_default(pjsua_transport_config *cfg)
{
pj_bzero(cfg, sizeof(*cfg));
pjsip_tls_setting_default(&cfg->tls_setting);
}
PJ_DEF(void) pjsua_transport_config_dup(pj_pool_t *pool,
pjsua_transport_config *dst,
const pjsua_transport_config *src)
{
PJ_UNUSED_ARG(pool);
pj_memcpy(dst, src, sizeof(*src));
}
PJ_DEF(void) pjsua_acc_config_default(pjsua_acc_config *cfg)
{
pj_bzero(cfg, sizeof(*cfg));
cfg->reg_timeout = PJSUA_REG_INTERVAL;
cfg->transport_id = PJSUA_INVALID_ID;
cfg->auto_update_nat = PJ_TRUE;
cfg->require_100rel = pjsua_var.ua_cfg.require_100rel;
cfg->ka_interval = 15;
cfg->ka_data = pj_str("\r\n");
}
PJ_DEF(void) pjsua_buddy_config_default(pjsua_buddy_config *cfg)
{
pj_bzero(cfg, sizeof(*cfg));
}
PJ_DEF(void) pjsua_media_config_default(pjsua_media_config *cfg)
{
pj_bzero(cfg, sizeof(*cfg));
cfg->clock_rate = PJSUA_DEFAULT_CLOCK_RATE;
cfg->audio_frame_ptime = 10;
cfg->max_media_ports = 32;
cfg->has_ioqueue = PJ_TRUE;
cfg->thread_cnt = 1;
cfg->quality = PJSUA_DEFAULT_CODEC_QUALITY;
cfg->ilbc_mode = PJSUA_DEFAULT_ILBC_MODE;
cfg->ec_tail_len = PJSUA_DEFAULT_EC_TAIL_LEN;
cfg->jb_init = cfg->jb_min_pre = cfg->jb_max_pre = cfg->jb_max = -1;
}
/*****************************************************************************
* This is a very simple PJSIP module, whose sole purpose is to display
* incoming and outgoing messages to log. This module will have priority
* higher than transport layer, which means:
*
* - incoming messages will come to this module first before reaching
* transaction layer.
*
* - outgoing messages will come to this module last, after the message
* has been 'printed' to contiguous buffer by transport layer and
* appropriate transport instance has been decided for this message.
*
*/
/* Notification on incoming messages */
static pj_bool_t logging_on_rx_msg(pjsip_rx_data *rdata)
{
PJ_LOG(4,(THIS_FILE, "RX %d bytes %s from %s %s:%d:\n"
"%.*s\n"
"--end msg--",
rdata->msg_info.len,
pjsip_rx_data_get_info(rdata),
rdata->tp_info.transport->type_name,
rdata->pkt_info.src_name,
rdata->pkt_info.src_port,
(int)rdata->msg_info.len,
rdata->msg_info.msg_buf));
/* Always return false, otherwise messages will not get processed! */
return PJ_FALSE;
}
/* Notification on outgoing messages */
static pj_status_t logging_on_tx_msg(pjsip_tx_data *tdata)
{
/* Important note:
* tp_info field is only valid after outgoing messages has passed
* transport layer. So don't try to access tp_info when the module
* has lower priority than transport layer.
*/
PJ_LOG(4,(THIS_FILE, "TX %d bytes %s to %s %s:%d:\n"
"%.*s\n"
"--end msg--",
(tdata->buf.cur - tdata->buf.start),
pjsip_tx_data_get_info(tdata),
tdata->tp_info.transport->type_name,
tdata->tp_info.dst_name,
tdata->tp_info.dst_port,
(int)(tdata->buf.cur - tdata->buf.start),
tdata->buf.start));
/* Always return success, otherwise message will not get sent! */
return PJ_SUCCESS;
}
/* The module instance. */
static pjsip_module pjsua_msg_logger =
{
NULL, NULL, /* prev, next. */
{ "mod-pjsua-log", 13 }, /* Name. */
-1, /* Id */
PJSIP_MOD_PRIORITY_TRANSPORT_LAYER-1,/* Priority */
NULL, /* load() */
NULL, /* start() */
NULL, /* stop() */
NULL, /* unload() */
&logging_on_rx_msg, /* on_rx_request() */
&logging_on_rx_msg, /* on_rx_response() */
&logging_on_tx_msg, /* on_tx_request. */
&logging_on_tx_msg, /* on_tx_response() */
NULL, /* on_tsx_state() */
};
/*****************************************************************************
* Another simple module to handle incoming OPTIONS request
*/
/* Notification on incoming request */
static pj_bool_t options_on_rx_request(pjsip_rx_data *rdata)
{
pjsip_tx_data *tdata;
pjsip_response_addr res_addr;
pjmedia_sock_info skinfo;
pjmedia_sdp_session *sdp;
const pjsip_hdr *cap_hdr;
pj_status_t status;
/* Only want to handle OPTIONS requests */
if (pjsip_method_cmp(&rdata->msg_info.msg->line.req.method,
pjsip_get_options_method()) != 0)
{
return PJ_FALSE;
}
/* Create basic response. */
status = pjsip_endpt_create_response(pjsua_var.endpt, rdata, 200, NULL,
&tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create OPTIONS response", status);
return PJ_TRUE;
}
/* Add Allow header */
cap_hdr = pjsip_endpt_get_capability(pjsua_var.endpt, PJSIP_H_ALLOW, NULL);
if (cap_hdr) {
pjsip_msg_add_hdr(tdata->msg,
(pjsip_hdr*) pjsip_hdr_clone(tdata->pool, cap_hdr));
}
/* Add Accept header */
cap_hdr = pjsip_endpt_get_capability(pjsua_var.endpt, PJSIP_H_ACCEPT, NULL);
if (cap_hdr) {
pjsip_msg_add_hdr(tdata->msg,
(pjsip_hdr*) pjsip_hdr_clone(tdata->pool, cap_hdr));
}
/* Add Supported header */
cap_hdr = pjsip_endpt_get_capability(pjsua_var.endpt, PJSIP_H_SUPPORTED, NULL);
if (cap_hdr) {
pjsip_msg_add_hdr(tdata->msg,
(pjsip_hdr*) pjsip_hdr_clone(tdata->pool, cap_hdr));
}
/* Add Allow-Events header from the evsub module */
cap_hdr = pjsip_evsub_get_allow_events_hdr(NULL);
if (cap_hdr) {
pjsip_msg_add_hdr(tdata->msg,
(pjsip_hdr*) pjsip_hdr_clone(tdata->pool, cap_hdr));
}
/* Add User-Agent header */
if (pjsua_var.ua_cfg.user_agent.slen) {
const pj_str_t USER_AGENT = { "User-Agent", 10};
pjsip_hdr *h;
h = (pjsip_hdr*) pjsip_generic_string_hdr_create(tdata->pool,
&USER_AGENT,
&pjsua_var.ua_cfg.user_agent);
pjsip_msg_add_hdr(tdata->msg, h);
}
/* Get media socket info */
pjmedia_transport_get_info(pjsua_var.calls[0].med_tp, &skinfo);
/* Add SDP body, using call0's RTP address */
status = pjmedia_endpt_create_sdp(pjsua_var.med_endpt, tdata->pool, 1,
&skinfo, &sdp);
if (status == PJ_SUCCESS) {
pjsip_create_sdp_body(tdata->pool, sdp, &tdata->msg->body);
}
/* Send response statelessly */
pjsip_get_response_addr(tdata->pool, rdata, &res_addr);
status = pjsip_endpt_send_response(pjsua_var.endpt, &res_addr, tdata, NULL, NULL);
if (status != PJ_SUCCESS)
pjsip_tx_data_dec_ref(tdata);
return PJ_TRUE;
}
/* The module instance. */
static pjsip_module pjsua_options_handler =
{
NULL, NULL, /* prev, next. */
{ "mod-pjsua-options", 17 }, /* Name. */
-1, /* Id */
PJSIP_MOD_PRIORITY_APPLICATION, /* Priority */
NULL, /* load() */
NULL, /* start() */
NULL, /* stop() */
NULL, /* unload() */
&options_on_rx_request, /* on_rx_request() */
NULL, /* on_rx_response() */
NULL, /* on_tx_request. */
NULL, /* on_tx_response() */
NULL, /* on_tsx_state() */
};
/*****************************************************************************
* These two functions are the main callbacks registered to PJSIP stack
* to receive SIP request and response messages that are outside any
* dialogs and any transactions.
*/
/*
* Handler for receiving incoming requests.
*
* This handler serves multiple purposes:
* - it receives requests outside dialogs.
* - it receives requests inside dialogs, when the requests are
* unhandled by other dialog usages. Example of these
* requests are: MESSAGE.
*/
static pj_bool_t mod_pjsua_on_rx_request(pjsip_rx_data *rdata)
{
pj_bool_t processed = PJ_FALSE;
PJSUA_LOCK();
if (rdata->msg_info.msg->line.req.method.id == PJSIP_INVITE_METHOD) {
processed = pjsua_call_on_incoming(rdata);
}
PJSUA_UNLOCK();
return processed;
}
/*
* Handler for receiving incoming responses.
*
* This handler serves multiple purposes:
* - it receives strayed responses (i.e. outside any dialog and
* outside any transactions).
* - it receives responses coming to a transaction, when pjsua
* module is set as transaction user for the transaction.
* - it receives responses inside a dialog, when these responses
* are unhandled by other dialog usages.
*/
static pj_bool_t mod_pjsua_on_rx_response(pjsip_rx_data *rdata)
{
PJ_UNUSED_ARG(rdata);
return PJ_FALSE;
}
/*****************************************************************************
* Logging.
*/
/* Log callback */
static void log_writer(int level, const char *buffer, int len)
{
/* Write to file, stdout or application callback. */
if (pjsua_var.log_file) {
pj_ssize_t size = len;
pj_file_write(pjsua_var.log_file, buffer, &size);
/* This will slow things down considerably! Don't do it!
pj_file_flush(pjsua_var.log_file);
*/
}
if (level <= (int)pjsua_var.log_cfg.console_level) {
if (pjsua_var.log_cfg.cb)
(*pjsua_var.log_cfg.cb)(level, buffer, len);
else
pj_log_write(level, buffer, len);
}
}
/*
* Application can call this function at any time (after pjsua_create(), of
* course) to change logging settings.
*/
PJ_DEF(pj_status_t) pjsua_reconfigure_logging(const pjsua_logging_config *cfg)
{
pj_status_t status;
/* Save config. */
pjsua_logging_config_dup(pjsua_var.pool, &pjsua_var.log_cfg, cfg);
/* Redirect log function to ours */
pj_log_set_log_func( &log_writer );
/* Set decor */
pj_log_set_decor(pjsua_var.log_cfg.decor);
/* Close existing file, if any */
if (pjsua_var.log_file) {
pj_file_close(pjsua_var.log_file);
pjsua_var.log_file = NULL;
}
/* If output log file is desired, create the file: */
if (pjsua_var.log_cfg.log_filename.slen) {
status = pj_file_open(pjsua_var.pool,
pjsua_var.log_cfg.log_filename.ptr,
PJ_O_WRONLY,
&pjsua_var.log_file);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error creating log file", status);
return status;
}
}
/* Unregister msg logging if it's previously registered */
if (pjsua_msg_logger.id >= 0) {
pjsip_endpt_unregister_module(pjsua_var.endpt, &pjsua_msg_logger);
pjsua_msg_logger.id = -1;
}
/* Enable SIP message logging */
if (pjsua_var.log_cfg.msg_logging)
pjsip_endpt_register_module(pjsua_var.endpt, &pjsua_msg_logger);
return PJ_SUCCESS;
}
/*****************************************************************************
* PJSUA Base API.
*/
/* Worker thread function. */
static int worker_thread(void *arg)
{
enum { TIMEOUT = 10 };
PJ_UNUSED_ARG(arg);
while (!pjsua_var.thread_quit_flag) {
int count;
count = pjsua_handle_events(TIMEOUT);
if (count < 0)
pj_thread_sleep(TIMEOUT);
}
return 0;
}
/*
* Instantiate pjsua application.
*/
PJ_DEF(pj_status_t) pjsua_create(void)
{
pj_status_t status;
/* Init pjsua data */
init_data();
/* Set default logging settings */
pjsua_logging_config_default(&pjsua_var.log_cfg);
/* Init PJLIB: */
status = pj_init();
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Init PJLIB-UTIL: */
status = pjlib_util_init();
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Init PJNATH */
status = pjnath_init();
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Set default sound device ID */
pjsua_var.cap_dev = pjsua_var.play_dev = -1;
/* Init caching pool. */
pj_caching_pool_init(&pjsua_var.cp, NULL, 0);
/* Create memory pool for application. */
pjsua_var.pool = pjsua_pool_create("pjsua", 4000, 4000);
PJ_ASSERT_RETURN(pjsua_var.pool, PJ_ENOMEM);
/* Create mutex */
status = pj_mutex_create_recursive(pjsua_var.pool, "pjsua",
&pjsua_var.mutex);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create mutex", status);
return status;
}
/* Must create SIP endpoint to initialize SIP parser. The parser
* is needed for example when application needs to call pjsua_verify_url().
*/
status = pjsip_endpt_create(&pjsua_var.cp.factory,
pj_gethostname()->ptr,
&pjsua_var.endpt);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
return PJ_SUCCESS;
}
/*
* Initialize pjsua with the specified settings. All the settings are
* optional, and the default values will be used when the config is not
* specified.
*/
PJ_DEF(pj_status_t) pjsua_init( const pjsua_config *ua_cfg,
const pjsua_logging_config *log_cfg,
const pjsua_media_config *media_cfg)
{
pjsua_config default_cfg;
pjsua_media_config default_media_cfg;
const pj_str_t STR_OPTIONS = { "OPTIONS", 7 };
pj_status_t status;
/* Create default configurations when the config is not supplied */
if (ua_cfg == NULL) {
pjsua_config_default(&default_cfg);
ua_cfg = &default_cfg;
}
if (media_cfg == NULL) {
pjsua_media_config_default(&default_media_cfg);
media_cfg = &default_media_cfg;
}
/* Initialize logging first so that info/errors can be captured */
if (log_cfg) {
status = pjsua_reconfigure_logging(log_cfg);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
}
/* If nameserver is configured, create DNS resolver instance and
* set it to be used by SIP resolver.
*/
if (ua_cfg->nameserver_count) {
#if PJSIP_HAS_RESOLVER
unsigned i;
/* Create DNS resolver */
status = pjsip_endpt_create_resolver(pjsua_var.endpt,
&pjsua_var.resolver);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error creating resolver", status);
return status;
}
/* Configure nameserver for the DNS resolver */
status = pj_dns_resolver_set_ns(pjsua_var.resolver,
ua_cfg->nameserver_count,
ua_cfg->nameserver, NULL);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error setting nameserver", status);
return status;
}
/* Set this DNS resolver to be used by the SIP resolver */
status = pjsip_endpt_set_resolver(pjsua_var.endpt, pjsua_var.resolver);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error setting DNS resolver", status);
return status;
}
/* Print nameservers */
for (i=0; i<ua_cfg->nameserver_count; ++i) {
PJ_LOG(4,(THIS_FILE, "Nameserver %.*s added",
(int)ua_cfg->nameserver[i].slen,
ua_cfg->nameserver[i].ptr));
}
#else
PJ_LOG(2,(THIS_FILE,
"DNS resolver is disabled (PJSIP_HAS_RESOLVER==0)"));
#endif
}
/* Init SIP UA: */
/* Initialize transaction layer: */
status = pjsip_tsx_layer_init_module(pjsua_var.endpt);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Initialize UA layer module: */
status = pjsip_ua_init_module( pjsua_var.endpt, NULL );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Initialize Replaces support. */
status = pjsip_replaces_init_module( pjsua_var.endpt );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Initialize 100rel support */
status = pjsip_100rel_init_module(pjsua_var.endpt);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Initialize and register PJSUA application module. */
{
const pjsip_module mod_initializer =
{
NULL, NULL, /* prev, next. */
{ "mod-pjsua", 9 }, /* Name. */
-1, /* Id */
PJSIP_MOD_PRIORITY_APPLICATION, /* Priority */
NULL, /* load() */
NULL, /* start() */
NULL, /* stop() */
NULL, /* unload() */
&mod_pjsua_on_rx_request, /* on_rx_request() */
&mod_pjsua_on_rx_response, /* on_rx_response() */
NULL, /* on_tx_request. */
NULL, /* on_tx_response() */
NULL, /* on_tsx_state() */
};
pjsua_var.mod = mod_initializer;
status = pjsip_endpt_register_module(pjsua_var.endpt, &pjsua_var.mod);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
}
/* Initialize PJSUA call subsystem: */
status = pjsua_call_subsys_init(ua_cfg);
if (status != PJ_SUCCESS)
goto on_error;
/* Start resolving STUN server */
status = pjsua_resolve_stun_server(PJ_FALSE);
if (status != PJ_SUCCESS && status != PJ_EPENDING) {
pjsua_perror(THIS_FILE, "Error resolving STUN server", status);
return status;
}
/* Initialize PJSUA media subsystem */
status = pjsua_media_subsys_init(media_cfg);
if (status != PJ_SUCCESS)
goto on_error;
/* Init core SIMPLE module : */
status = pjsip_evsub_init_module(pjsua_var.endpt);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Init presence module: */
status = pjsip_pres_init_module( pjsua_var.endpt, pjsip_evsub_instance());
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Init PUBLISH module */
pjsip_publishc_init_module(pjsua_var.endpt);
/* Init xfer/REFER module */
status = pjsip_xfer_init_module( pjsua_var.endpt );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Init pjsua presence handler: */
status = pjsua_pres_init();
if (status != PJ_SUCCESS)
goto on_error;
/* Init out-of-dialog MESSAGE request handler. */
status = pjsua_im_init();
if (status != PJ_SUCCESS)
goto on_error;
/* Register OPTIONS handler */
pjsip_endpt_register_module(pjsua_var.endpt, &pjsua_options_handler);
/* Add OPTIONS in Allow header */
pjsip_endpt_add_capability(pjsua_var.endpt, NULL, PJSIP_H_ALLOW,
NULL, 1, &STR_OPTIONS);
/* Start worker thread if needed. */
if (pjsua_var.ua_cfg.thread_cnt) {
unsigned i;
if (pjsua_var.ua_cfg.thread_cnt > PJ_ARRAY_SIZE(pjsua_var.thread))
pjsua_var.ua_cfg.thread_cnt = PJ_ARRAY_SIZE(pjsua_var.thread);
for (i=0; i<pjsua_var.ua_cfg.thread_cnt; ++i) {
status = pj_thread_create(pjsua_var.pool, "pjsua", &worker_thread,
NULL, 0, 0, &pjsua_var.thread[i]);
if (status != PJ_SUCCESS)
goto on_error;
}
PJ_LOG(4,(THIS_FILE, "%d SIP worker threads created",
pjsua_var.ua_cfg.thread_cnt));
} else {
PJ_LOG(4,(THIS_FILE, "No SIP worker threads created"));
}
/* Done! */
PJ_LOG(3,(THIS_FILE, "pjsua version %s for %s initialized",
pj_get_version(), PJ_OS_NAME));
return PJ_SUCCESS;
on_error:
pjsua_destroy();
return status;
}
/* Sleep with polling */
static void busy_sleep(unsigned msec)
{
#if defined(PJ_SYMBIAN) && PJ_SYMBIAN != 0
/* Ideally we shouldn't call pj_thread_sleep() and rather
* CActiveScheduler::WaitForAnyRequest() here, but that will
* drag in Symbian header and it doesn't look pretty.
*/
pj_thread_sleep(msec);
#else
pj_time_val timeout, now;
pj_gettimeofday(&timeout);
timeout.msec += msec;
pj_time_val_normalize(&timeout);
do {
while (pjsua_handle_events(10) > 0)
;
pj_gettimeofday(&now);
} while (PJ_TIME_VAL_LT(now, timeout));
#endif
}
/*
* Callback function to receive notification from the resolver
* when the resolution process completes.
*/
static void stun_dns_srv_resolver_cb(void *user_data,
pj_status_t status,
const pj_dns_srv_record *rec)
{
unsigned i;
PJ_UNUSED_ARG(user_data);
pjsua_var.stun_status = status;
if (status != PJ_SUCCESS) {
/* DNS SRV resolution failed. If stun_host is specified, resolve
* it with gethostbyname()
*/
if (pjsua_var.ua_cfg.stun_host.slen) {
pj_str_t str_host, str_port;
int port;
pj_hostent he;
str_port.ptr = pj_strchr(&pjsua_var.ua_cfg.stun_host, ':');
if (str_port.ptr != NULL) {
str_host.ptr = pjsua_var.ua_cfg.stun_host.ptr;
str_host.slen = (str_port.ptr - str_host.ptr);
str_port.ptr++;
str_port.slen = pjsua_var.ua_cfg.stun_host.slen -
str_host.slen - 1;
port = (int)pj_strtoul(&str_port);
if (port < 1 || port > 65535) {
pjsua_perror(THIS_FILE, "Invalid STUN server", PJ_EINVAL);
pjsua_var.stun_status = PJ_EINVAL;
return;
}
} else {
str_host = pjsua_var.ua_cfg.stun_host;
port = 3478;
}
pjsua_var.stun_status = pj_gethostbyname(&str_host, &he);
if (pjsua_var.stun_status == PJ_SUCCESS) {
pj_sockaddr_in_init(&pjsua_var.stun_srv.ipv4, NULL, 0);
pjsua_var.stun_srv.ipv4.sin_addr = *(pj_in_addr*)he.h_addr;
pjsua_var.stun_srv.ipv4.sin_port = pj_htons((pj_uint16_t)port);
PJ_LOG(3,(THIS_FILE,
"STUN server %.*s resolved, address is %s:%d",
(int)pjsua_var.ua_cfg.stun_host.slen,
pjsua_var.ua_cfg.stun_host.ptr,
pj_inet_ntoa(pjsua_var.stun_srv.ipv4.sin_addr),
(int)pj_ntohs(pjsua_var.stun_srv.ipv4.sin_port)));
}
} else {
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(1,(THIS_FILE,
"DNS SRV resolution failed for STUN server %.*s: %s",
(int)pjsua_var.ua_cfg.stun_domain.slen,
pjsua_var.ua_cfg.stun_domain.ptr,
errmsg));
}
return;
}
pj_assert(rec->count != 0 && rec->entry[0].server.addr_count != 0);
pj_sockaddr_in_init(&pjsua_var.stun_srv.ipv4, NULL,
rec->entry[0].port);
pjsua_var.stun_srv.ipv4.sin_addr.s_addr =
rec->entry[0].server.addr[0].s_addr;
PJ_LOG(3,(THIS_FILE, "_stun._udp.%.*s resolved, found %d entry(s):",
(int)pjsua_var.ua_cfg.stun_domain.slen,
pjsua_var.ua_cfg.stun_domain.ptr,
rec->count));
for (i=0; i<rec->count; ++i) {
PJ_LOG(3,(THIS_FILE,
" %d: prio=%d, weight=%d %s:%d",
i, rec->entry[i].priority, rec->entry[i].weight,
pj_inet_ntoa(rec->entry[i].server.addr[0]),
(int)rec->entry[i].port));
}
}
/*
* Resolve STUN server.
*/
pj_status_t pjsua_resolve_stun_server(pj_bool_t wait)
{
if (pjsua_var.stun_status == PJ_EUNKNOWN) {
/* Initialize STUN configuration */
pj_stun_config_init(&pjsua_var.stun_cfg, &pjsua_var.cp.factory, 0,
pjsip_endpt_get_ioqueue(pjsua_var.endpt),
pjsip_endpt_get_timer_heap(pjsua_var.endpt));
/* Start STUN server resolution */
pjsua_var.stun_status = PJ_EPENDING;
/* If stun_domain is specified, resolve STUN servers with DNS
* SRV resolution.
*/
if (pjsua_var.ua_cfg.stun_domain.slen) {
pj_str_t res_type;
pj_status_t status;
/* Fail if resolver is not configured */
if (pjsua_var.resolver == NULL) {
PJ_LOG(1,(THIS_FILE, "Nameserver must be configured when "
"stun_domain is specified"));
pjsua_var.stun_status = PJLIB_UTIL_EDNSNONS;
return PJLIB_UTIL_EDNSNONS;
}
res_type = pj_str("_stun._udp");
status =
pj_dns_srv_resolve(&pjsua_var.ua_cfg.stun_domain, &res_type,
3478, pjsua_var.pool, pjsua_var.resolver,
0, NULL, &stun_dns_srv_resolver_cb, NULL);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error starting DNS SRV resolution",
pjsua_var.stun_status);
pjsua_var.stun_status = status;
return pjsua_var.stun_status;
} else {
pjsua_var.stun_status = PJ_EPENDING;
}
}
/* Otherwise if stun_host is specified, resolve STUN server with
* gethostbyname().
*/
else if (pjsua_var.ua_cfg.stun_host.slen) {
pj_str_t str_host, str_port;
int port;
pj_hostent he;
str_port.ptr = pj_strchr(&pjsua_var.ua_cfg.stun_host, ':');
if (str_port.ptr != NULL) {
str_host.ptr = pjsua_var.ua_cfg.stun_host.ptr;
str_host.slen = (str_port.ptr - str_host.ptr);
str_port.ptr++;
str_port.slen = pjsua_var.ua_cfg.stun_host.slen -
str_host.slen - 1;
port = (int)pj_strtoul(&str_port);
if (port < 1 || port > 65535) {
pjsua_perror(THIS_FILE, "Invalid STUN server", PJ_EINVAL);
pjsua_var.stun_status = PJ_EINVAL;
return pjsua_var.stun_status;
}
} else {
str_host = pjsua_var.ua_cfg.stun_host;
port = 3478;
}
pjsua_var.stun_status =
pj_sockaddr_in_init(&pjsua_var.stun_srv.ipv4, &str_host,
(pj_uint16_t)port);
if (pjsua_var.stun_status != PJ_SUCCESS) {
pjsua_var.stun_status = pj_gethostbyname(&str_host, &he);
if (pjsua_var.stun_status == PJ_SUCCESS) {
pj_sockaddr_in_init(&pjsua_var.stun_srv.ipv4, NULL, 0);
pjsua_var.stun_srv.ipv4.sin_addr = *(pj_in_addr*)he.h_addr;
pjsua_var.stun_srv.ipv4.sin_port = pj_htons((pj_uint16_t)port);
}
}
PJ_LOG(3,(THIS_FILE,
"STUN server %.*s resolved, address is %s:%d",
(int)pjsua_var.ua_cfg.stun_host.slen,
pjsua_var.ua_cfg.stun_host.ptr,
pj_inet_ntoa(pjsua_var.stun_srv.ipv4.sin_addr),
(int)pj_ntohs(pjsua_var.stun_srv.ipv4.sin_port)));
}
/* Otherwise disable STUN. */
else {
pjsua_var.stun_status = PJ_SUCCESS;
}
return pjsua_var.stun_status;
} else if (pjsua_var.stun_status == PJ_EPENDING) {
/* STUN server resolution has been started, wait for the
* result.
*/
if (wait) {
while (pjsua_var.stun_status == PJ_EPENDING)
pjsua_handle_events(10);
}
return pjsua_var.stun_status;
} else {
/* STUN server has been resolved, return the status */
return pjsua_var.stun_status;
}
}
/*
* Destroy pjsua.
*/
PJ_DEF(pj_status_t) pjsua_destroy(void)
{
int i; /* Must be signed */
/* Signal threads to quit: */
pjsua_var.thread_quit_flag = 1;
/* Wait worker threads to quit: */
for (i=0; i<(int)pjsua_var.ua_cfg.thread_cnt; ++i) {
if (pjsua_var.thread[i]) {
pj_thread_join(pjsua_var.thread[i]);
pj_thread_destroy(pjsua_var.thread[i]);
pjsua_var.thread[i] = NULL;
}
}
if (pjsua_var.endpt) {
/* Terminate all calls. */
pjsua_call_hangup_all();
/* Terminate all presence subscriptions. */
pjsua_pres_shutdown();
/* Unregister, if required: */
for (i=0; i<(int)PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
if (!pjsua_var.acc[i].valid)
continue;
if (pjsua_var.acc[i].regc) {
pjsua_acc_set_registration(i, PJ_FALSE);
}
}
/* Wait for some time to allow unregistration to complete: */
PJ_LOG(4,(THIS_FILE, "Shutting down..."));
busy_sleep(1000);
}
/* Destroy media */
pjsua_media_subsys_destroy();
/* Destroy endpoint. */
if (pjsua_var.endpt) {
pjsip_endpt_destroy(pjsua_var.endpt);
pjsua_var.endpt = NULL;
}
/* Destroy mutex */
if (pjsua_var.mutex) {
pj_mutex_destroy(pjsua_var.mutex);
pjsua_var.mutex = NULL;
}
/* Destroy pool and pool factory. */
if (pjsua_var.pool) {
pj_pool_release(pjsua_var.pool);
pjsua_var.pool = NULL;
pj_caching_pool_destroy(&pjsua_var.cp);
PJ_LOG(4,(THIS_FILE, "PJSUA destroyed..."));
/* End logging */
if (pjsua_var.log_file) {
pj_file_close(pjsua_var.log_file);
pjsua_var.log_file = NULL;
}
/* Shutdown PJLIB */
pj_shutdown();
}
/* Clear pjsua_var */
pj_bzero(&pjsua_var, sizeof(pjsua_var));
/* Done. */
return PJ_SUCCESS;
}
/**
* Application is recommended to call this function after all initialization
* is done, so that the library can do additional checking set up
* additional
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DEF(pj_status_t) pjsua_start(void)
{
pj_status_t status;
status = pjsua_call_subsys_start();
if (status != PJ_SUCCESS)
return status;
status = pjsua_media_subsys_start();
if (status != PJ_SUCCESS)
return status;
status = pjsua_pres_start();
if (status != PJ_SUCCESS)
return status;
return PJ_SUCCESS;
}
/**
* Poll pjsua for events, and if necessary block the caller thread for
* the specified maximum interval (in miliseconds).
*/
PJ_DEF(int) pjsua_handle_events(unsigned msec_timeout)
{
#if defined(PJ_SYMBIAN) && PJ_SYMBIAN != 0
/* Ideally we shouldn't call pj_thread_sleep() and rather
* CActiveScheduler::WaitForAnyRequest() here, but that will
* drag in Symbian header and it doesn't look pretty.
*/
pj_thread_sleep(msec_timeout);
return msec_timeout;
#else
unsigned count = 0;
pj_time_val tv;
pj_status_t status;
tv.sec = 0;
tv.msec = msec_timeout;
pj_time_val_normalize(&tv);
status = pjsip_endpt_handle_events2(pjsua_var.endpt, &tv, &count);
if (status != PJ_SUCCESS)
return -status;
return count;
#endif
}
/*
* Create memory pool.
*/
PJ_DEF(pj_pool_t*) pjsua_pool_create( const char *name, pj_size_t init_size,
pj_size_t increment)
{
/* Pool factory is thread safe, no need to lock */
return pj_pool_create(&pjsua_var.cp.factory, name, init_size, increment,
NULL);
}
/*
* Internal function to get SIP endpoint instance of pjsua, which is
* needed for example to register module, create transports, etc.
* Probably is only valid after #pjsua_init() is called.
*/
PJ_DEF(pjsip_endpoint*) pjsua_get_pjsip_endpt(void)
{
return pjsua_var.endpt;
}
/*
* Internal function to get media endpoint instance.
* Only valid after #pjsua_init() is called.
*/
PJ_DEF(pjmedia_endpt*) pjsua_get_pjmedia_endpt(void)
{
return pjsua_var.med_endpt;
}
/*
* Internal function to get PJSUA pool factory.
*/
PJ_DEF(pj_pool_factory*) pjsua_get_pool_factory(void)
{
return &pjsua_var.cp.factory;
}
/*****************************************************************************
* PJSUA SIP Transport API.
*/
/*
* Create and initialize SIP socket (and possibly resolve public
* address via STUN, depending on config).
*/
static pj_status_t create_sip_udp_sock(pj_in_addr bound_addr,
int port,
pj_sock_t *p_sock,
pj_sockaddr_in *p_pub_addr)
{
char ip_addr[32];
pj_str_t stun_srv;
pj_sock_t sock;
pj_status_t status;
/* Make sure STUN server resolution has completed */
status = pjsua_resolve_stun_server(PJ_TRUE);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error resolving STUN server", status);
return status;
}
status = pj_sock_socket(pj_AF_INET(), pj_SOCK_DGRAM(), 0, &sock);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "socket() error", status);
return status;
}
status = pj_sock_bind_in(sock, pj_ntohl(bound_addr.s_addr),
(pj_uint16_t)port);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "bind() error", status);
pj_sock_close(sock);
return status;
}
/* If port is zero, get the bound port */
if (port == 0) {
pj_sockaddr_in bound_addr;
int namelen = sizeof(bound_addr);
status = pj_sock_getsockname(sock, &bound_addr, &namelen);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "getsockname() error", status);
pj_sock_close(sock);
return status;
}
port = pj_ntohs(bound_addr.sin_port);
}
if (pjsua_var.stun_srv.addr.sa_family != 0) {
pj_ansi_strcpy(ip_addr,pj_inet_ntoa(pjsua_var.stun_srv.ipv4.sin_addr));
stun_srv = pj_str(ip_addr);
} else {
stun_srv.slen = 0;
}
/* Get the published address, either by STUN or by resolving
* the name of local host.
*/
if (p_pub_addr->sin_addr.s_addr != 0) {
/*
* Public address is already specified, no need to resolve the
* address, only set the port.
*/
if (p_pub_addr->sin_port == 0)
p_pub_addr->sin_port = pj_htons((pj_uint16_t)port);
} else if (stun_srv.slen) {
/*
* STUN is specified, resolve the address with STUN.
*/
status = pjstun_get_mapped_addr(&pjsua_var.cp.factory, 1, &sock,
&stun_srv, pj_ntohs(pjsua_var.stun_srv.ipv4.sin_port),
&stun_srv, pj_ntohs(pjsua_var.stun_srv.ipv4.sin_port),
p_pub_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error contacting STUN server", status);
pj_sock_close(sock);
return status;
}
} else {
pj_bzero(p_pub_addr, sizeof(pj_sockaddr_in));
status = pj_gethostip(&p_pub_addr->sin_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to get local host IP", status);
pj_sock_close(sock);
return status;
}
p_pub_addr->sin_family = pj_AF_INET();
p_pub_addr->sin_port = pj_htons((pj_uint16_t)port);
}
*p_sock = sock;
PJ_LOG(4,(THIS_FILE, "SIP UDP socket reachable at %s:%d",
pj_inet_ntoa(p_pub_addr->sin_addr),
(int)pj_ntohs(p_pub_addr->sin_port)));
return PJ_SUCCESS;
}
/*
* Create SIP transport.
*/
PJ_DEF(pj_status_t) pjsua_transport_create( pjsip_transport_type_e type,
const pjsua_transport_config *cfg,
pjsua_transport_id *p_id)
{
pjsip_transport *tp;
unsigned id;
pj_status_t status;
PJSUA_LOCK();
/* Find empty transport slot */
for (id=0; id < PJ_ARRAY_SIZE(pjsua_var.tpdata); ++id) {
if (pjsua_var.tpdata[id].data.ptr == NULL)
break;
}
if (id == PJ_ARRAY_SIZE(pjsua_var.tpdata)) {
status = PJ_ETOOMANY;
pjsua_perror(THIS_FILE, "Error creating transport", status);
goto on_return;
}
/* Create the transport */
if (type == PJSIP_TRANSPORT_UDP) {
/*
* Create UDP transport.
*/
pjsua_transport_config config;
pj_sock_t sock = PJ_INVALID_SOCKET;
pj_sockaddr_in bound_addr;
pj_sockaddr_in pub_addr;
pjsip_host_port addr_name;
/* Supply default config if it's not specified */
if (cfg == NULL) {
pjsua_transport_config_default(&config);
cfg = &config;
}
/* Initialize bound address, if any */
bound_addr.sin_addr.s_addr = PJ_INADDR_ANY;
if (cfg->bound_addr.slen) {
status = pj_sockaddr_in_set_str_addr(&bound_addr,&cfg->bound_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Unable to resolve transport bound address",
status);
goto on_return;
}
}
/* Initialize the public address from the config, if any */
pj_sockaddr_in_init(&pub_addr, NULL, (pj_uint16_t)cfg->port);
if (cfg->public_addr.slen) {
status = pj_sockaddr_in_set_str_addr(&pub_addr, &cfg->public_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Unable to resolve transport public address",
status);
goto on_return;
}
}
/* Create the socket and possibly resolve the address with STUN
* (only when public address is not specified).
*/
status = create_sip_udp_sock(bound_addr.sin_addr, cfg->port,
&sock, &pub_addr);
if (status != PJ_SUCCESS)
goto on_return;
addr_name.host = pj_str(pj_inet_ntoa(pub_addr.sin_addr));
addr_name.port = pj_ntohs(pub_addr.sin_port);
/* Create UDP transport */
status = pjsip_udp_transport_attach( pjsua_var.endpt, sock,
&addr_name, 1,
&tp);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error creating SIP UDP transport",
status);
pj_sock_close(sock);
goto on_return;
}
/* Save the transport */
pjsua_var.tpdata[id].type = type;
pjsua_var.tpdata[id].local_name = tp->local_name;
pjsua_var.tpdata[id].data.tp = tp;
#if defined(PJ_HAS_TCP) && PJ_HAS_TCP!=0
} else if (type == PJSIP_TRANSPORT_TCP) {
/*
* Create TCP transport.
*/
pjsua_transport_config config;
pjsip_host_port a_name;
pjsip_tpfactory *tcp;
pj_sockaddr_in local_addr;
/* Supply default config if it's not specified */
if (cfg == NULL) {
pjsua_transport_config_default(&config);
cfg = &config;
}
/* Init local address */
pj_sockaddr_in_init(&local_addr, 0, 0);
if (cfg->port)
local_addr.sin_port = pj_htons((pj_uint16_t)cfg->port);
if (cfg->bound_addr.slen) {
status = pj_sockaddr_in_set_str_addr(&local_addr,&cfg->bound_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Unable to resolve transport bound address",
status);
goto on_return;
}
}
/* Init published name */
pj_bzero(&a_name, sizeof(pjsip_host_port));
if (cfg->public_addr.slen)
a_name.host = cfg->public_addr;
/* Create the TCP transport */
status = pjsip_tcp_transport_start2(pjsua_var.endpt, &local_addr,
&a_name, 1, &tcp);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error creating SIP TCP listener",
status);
goto on_return;
}
/* Save the transport */
pjsua_var.tpdata[id].type = type;
pjsua_var.tpdata[id].local_name = tcp->addr_name;
pjsua_var.tpdata[id].data.factory = tcp;
#endif /* PJ_HAS_TCP */
#if defined(PJSIP_HAS_TLS_TRANSPORT) && PJSIP_HAS_TLS_TRANSPORT!=0
} else if (type == PJSIP_TRANSPORT_TLS) {
/*
* Create TLS transport.
*/
/*
* Create TCP transport.
*/
pjsua_transport_config config;
pjsip_host_port a_name;
pjsip_tpfactory *tls;
pj_sockaddr_in local_addr;
/* Supply default config if it's not specified */
if (cfg == NULL) {
pjsua_transport_config_default(&config);
config.port = 5061;
cfg = &config;
}
/* Init local address */
pj_sockaddr_in_init(&local_addr, 0, 0);
if (cfg->port)
local_addr.sin_port = pj_htons((pj_uint16_t)cfg->port);
if (cfg->bound_addr.slen) {
status = pj_sockaddr_in_set_str_addr(&local_addr,&cfg->bound_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Unable to resolve transport bound address",
status);
goto on_return;
}
}
/* Init published name */
pj_bzero(&a_name, sizeof(pjsip_host_port));
if (cfg->public_addr.slen)
a_name.host = cfg->public_addr;
status = pjsip_tls_transport_start(pjsua_var.endpt,
&cfg->tls_setting,
&local_addr, &a_name, 1, &tls);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error creating SIP TLS listener",
status);
goto on_return;
}
/* Save the transport */
pjsua_var.tpdata[id].type = type;
pjsua_var.tpdata[id].local_name = tls->addr_name;
pjsua_var.tpdata[id].data.factory = tls;
#endif
} else {
status = PJSIP_EUNSUPTRANSPORT;
pjsua_perror(THIS_FILE, "Error creating transport", status);
goto on_return;
}
/* Return the ID */
if (p_id) *p_id = id;
status = PJ_SUCCESS;
on_return:
PJSUA_UNLOCK();
return status;
}
/*
* Register transport that has been created by application.
*/
PJ_DEF(pj_status_t) pjsua_transport_register( pjsip_transport *tp,
pjsua_transport_id *p_id)
{
unsigned id;
PJSUA_LOCK();
/* Find empty transport slot */
for (id=0; id < PJ_ARRAY_SIZE(pjsua_var.tpdata); ++id) {
if (pjsua_var.tpdata[id].data.ptr == NULL)
break;
}
if (id == PJ_ARRAY_SIZE(pjsua_var.tpdata)) {
pjsua_perror(THIS_FILE, "Error creating transport", PJ_ETOOMANY);
PJSUA_UNLOCK();
return PJ_ETOOMANY;
}
/* Save the transport */
pjsua_var.tpdata[id].type = (pjsip_transport_type_e) tp->key.type;
pjsua_var.tpdata[id].local_name = tp->local_name;
pjsua_var.tpdata[id].data.tp = tp;
/* Return the ID */
if (p_id) *p_id = id;
PJSUA_UNLOCK();
return PJ_SUCCESS;
}
/*
* Enumerate all transports currently created in the system.
*/
PJ_DEF(pj_status_t) pjsua_enum_transports( pjsua_transport_id id[],
unsigned *p_count )
{
unsigned i, count;
PJSUA_LOCK();
for (i=0, count=0; i<PJ_ARRAY_SIZE(pjsua_var.tpdata) && count<*p_count;
++i)
{
if (!pjsua_var.tpdata[i].data.ptr)
continue;
id[count++] = i;
}
*p_count = count;
PJSUA_UNLOCK();
return PJ_SUCCESS;
}
/*
* Get information about transports.
*/
PJ_DEF(pj_status_t) pjsua_transport_get_info( pjsua_transport_id id,
pjsua_transport_info *info)
{
pjsua_transport_data *t = &pjsua_var.tpdata[id];
pj_status_t status;
pj_bzero(info, sizeof(*info));
/* Make sure id is in range. */
PJ_ASSERT_RETURN(id>=0 && id<(int)PJ_ARRAY_SIZE(pjsua_var.tpdata),
PJ_EINVAL);
/* Make sure that transport exists */
PJ_ASSERT_RETURN(pjsua_var.tpdata[id].data.ptr != NULL, PJ_EINVAL);
PJSUA_LOCK();
if (pjsua_var.tpdata[id].type == PJSIP_TRANSPORT_UDP) {
pjsip_transport *tp = t->data.tp;
if (tp == NULL) {
PJSUA_UNLOCK();
return PJ_EINVALIDOP;
}
info->id = id;
info->type = (pjsip_transport_type_e) tp->key.type;
info->type_name = pj_str(tp->type_name);
info->info = pj_str(tp->info);
info->flag = tp->flag;
info->addr_len = tp->addr_len;
info->local_addr = tp->local_addr;
info->local_name = tp->local_name;
info->usage_count = pj_atomic_get(tp->ref_cnt);
status = PJ_SUCCESS;
} else if (pjsua_var.tpdata[id].type == PJSIP_TRANSPORT_TCP) {
pjsip_tpfactory *factory = t->data.factory;
if (factory == NULL) {
PJSUA_UNLOCK();
return PJ_EINVALIDOP;
}
info->id = id;
info->type = t->type;
info->type_name = pj_str("TCP");
info->info = pj_str("TCP transport");
info->flag = factory->flag;
info->addr_len = sizeof(factory->local_addr);
info->local_addr = factory->local_addr;
info->local_name = factory->addr_name;
info->usage_count = 0;
status = PJ_SUCCESS;
} else {
pj_assert(!"Unsupported transport");
status = PJ_EINVALIDOP;
}
PJSUA_UNLOCK();
return status;
}
/*
* Disable a transport or re-enable it.
*/
PJ_DEF(pj_status_t) pjsua_transport_set_enable( pjsua_transport_id id,
pj_bool_t enabled)
{
/* Make sure id is in range. */
PJ_ASSERT_RETURN(id>=0 && id<(int)PJ_ARRAY_SIZE(pjsua_var.tpdata),
PJ_EINVAL);
/* Make sure that transport exists */
PJ_ASSERT_RETURN(pjsua_var.tpdata[id].data.ptr != NULL, PJ_EINVAL);
/* To be done!! */
PJ_TODO(pjsua_transport_set_enable);
PJ_UNUSED_ARG(enabled);
return PJ_EINVALIDOP;
}
/*
* Close the transport.
*/
PJ_DEF(pj_status_t) pjsua_transport_close( pjsua_transport_id id,
pj_bool_t force )
{
pj_status_t status;
/* Make sure id is in range. */
PJ_ASSERT_RETURN(id>=0 && id<(int)PJ_ARRAY_SIZE(pjsua_var.tpdata),
PJ_EINVAL);
/* Make sure that transport exists */
PJ_ASSERT_RETURN(pjsua_var.tpdata[id].data.ptr != NULL, PJ_EINVAL);
/* Note: destroy() may not work if there are objects still referencing
* the transport.
*/
if (force) {
switch (pjsua_var.tpdata[id].type) {
case PJSIP_TRANSPORT_UDP:
status = pjsip_transport_shutdown(pjsua_var.tpdata[id].data.tp);
if (status != PJ_SUCCESS)
return status;
status = pjsip_transport_destroy(pjsua_var.tpdata[id].data.tp);
if (status != PJ_SUCCESS)
return status;
break;
case PJSIP_TRANSPORT_TLS:
case PJSIP_TRANSPORT_TCP:
/* This will close the TCP listener, but existing TCP/TLS
* connections (if any) will still linger
*/
status = (*pjsua_var.tpdata[id].data.factory->destroy)
(pjsua_var.tpdata[id].data.factory);
if (status != PJ_SUCCESS)
return status;
break;
default:
return PJ_EINVAL;
}
} else {
/* If force is not specified, transports will be closed at their
* convenient time. However this will leak PJSUA-API transport
* descriptors as PJSUA-API wouldn't know when exactly the
* transport is closed thus it can't cleanup PJSUA transport
* descriptor.
*/
switch (pjsua_var.tpdata[id].type) {
case PJSIP_TRANSPORT_UDP:
return pjsip_transport_shutdown(pjsua_var.tpdata[id].data.tp);
case PJSIP_TRANSPORT_TLS:
case PJSIP_TRANSPORT_TCP:
return (*pjsua_var.tpdata[id].data.factory->destroy)
(pjsua_var.tpdata[id].data.factory);
default:
return PJ_EINVAL;
}
}
/* Cleanup pjsua data when force is applied */
if (force) {
pjsua_var.tpdata[id].type = PJSIP_TRANSPORT_UNSPECIFIED;
pjsua_var.tpdata[id].data.ptr = NULL;
}
return PJ_SUCCESS;
}
/*
* Add additional headers etc in msg_data specified by application
* when sending requests.
*/
void pjsua_process_msg_data(pjsip_tx_data *tdata,
const pjsua_msg_data *msg_data)
{
pj_bool_t allow_body;
const pjsip_hdr *hdr;
/* Always add User-Agent */
if (pjsua_var.ua_cfg.user_agent.slen &&
tdata->msg->type == PJSIP_REQUEST_MSG)
{
const pj_str_t STR_USER_AGENT = { "User-Agent", 10 };
pjsip_hdr *h;
h = (pjsip_hdr*)pjsip_generic_string_hdr_create(tdata->pool,
&STR_USER_AGENT,
&pjsua_var.ua_cfg.user_agent);
pjsip_msg_add_hdr(tdata->msg, h);
}
if (!msg_data)
return;
hdr = msg_data->hdr_list.next;
while (hdr && hdr != &msg_data->hdr_list) {
pjsip_hdr *new_hdr;
new_hdr = (pjsip_hdr*) pjsip_hdr_clone(tdata->pool, hdr);
pjsip_msg_add_hdr(tdata->msg, new_hdr);
hdr = hdr->next;
}
allow_body = (tdata->msg->body == NULL);
if (allow_body && msg_data->content_type.slen && msg_data->msg_body.slen) {
pjsip_media_type ctype;
pjsip_msg_body *body;
pjsua_parse_media_type(tdata->pool, &msg_data->content_type, &ctype);
body = pjsip_msg_body_create(tdata->pool, &ctype.type, &ctype.subtype,
&msg_data->msg_body);
tdata->msg->body = body;
}
}
/*
* Add route_set to outgoing requests
*/
void pjsua_set_msg_route_set( pjsip_tx_data *tdata,
const pjsip_route_hdr *route_set )
{
const pjsip_route_hdr *r;
r = route_set->next;
while (r != route_set) {
pjsip_route_hdr *new_r;
new_r = (pjsip_route_hdr*) pjsip_hdr_clone(tdata->pool, r);
pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr*)new_r);
r = r->next;
}
}
/*
* Simple version of MIME type parsing (it doesn't support parameters)
*/
void pjsua_parse_media_type( pj_pool_t *pool,
const pj_str_t *mime,
pjsip_media_type *media_type)
{
pj_str_t tmp;
char *pos;
pj_bzero(media_type, sizeof(*media_type));
pj_strdup_with_null(pool, &tmp, mime);
pos = pj_strchr(&tmp, '/');
if (pos) {
media_type->type.ptr = tmp.ptr;
media_type->type.slen = (pos-tmp.ptr);
media_type->subtype.ptr = pos+1;
media_type->subtype.slen = tmp.ptr+tmp.slen-pos-1;
} else {
media_type->type = tmp;
}
}
/*
* Internal function to init transport selector from transport id.
*/
void pjsua_init_tpselector(pjsua_transport_id tp_id,
pjsip_tpselector *sel)
{
pjsua_transport_data *tpdata;
unsigned flag;
pj_bzero(sel, sizeof(*sel));
if (tp_id == PJSUA_INVALID_ID)
return;
pj_assert(tp_id >= 0 && tp_id < (int)PJ_ARRAY_SIZE(pjsua_var.tpdata));
tpdata = &pjsua_var.tpdata[tp_id];
flag = pjsip_transport_get_flag_from_type(tpdata->type);
if (flag & PJSIP_TRANSPORT_DATAGRAM) {
sel->type = PJSIP_TPSELECTOR_TRANSPORT;
sel->u.transport = tpdata->data.tp;
} else {
sel->type = PJSIP_TPSELECTOR_LISTENER;
sel->u.listener = tpdata->data.factory;
}
}
/* Callback upon NAT detection completion */
static void nat_detect_cb(void *user_data,
const pj_stun_nat_detect_result *res)
{
PJ_UNUSED_ARG(user_data);
pjsua_var.nat_in_progress = PJ_FALSE;
pjsua_var.nat_status = res->status;
pjsua_var.nat_type = res->nat_type;
if (pjsua_var.ua_cfg.cb.on_nat_detect) {
(*pjsua_var.ua_cfg.cb.on_nat_detect)(res);
}
}
/*
* Detect NAT type.
*/
PJ_DEF(pj_status_t) pjsua_detect_nat_type()
{
pj_status_t status;
if (pjsua_var.nat_in_progress)
return PJ_SUCCESS;
/* Make sure STUN server resolution has completed */
status = pjsua_resolve_stun_server(PJ_TRUE);
if (status != PJ_SUCCESS) {
pjsua_var.nat_status = status;
pjsua_var.nat_type = PJ_STUN_NAT_TYPE_ERR_UNKNOWN;
return status;
}
/* Make sure we have STUN */
if (pjsua_var.stun_srv.ipv4.sin_family == 0) {
pjsua_var.nat_status = PJNATH_ESTUNINSERVER;
return PJNATH_ESTUNINSERVER;
}
status = pj_stun_detect_nat_type(&pjsua_var.stun_srv.ipv4,
&pjsua_var.stun_cfg,
NULL, &nat_detect_cb);
if (status != PJ_SUCCESS) {
pjsua_var.nat_status = status;
pjsua_var.nat_type = PJ_STUN_NAT_TYPE_ERR_UNKNOWN;
return status;
}
pjsua_var.nat_in_progress = PJ_TRUE;
return PJ_SUCCESS;
}
/*
* Get NAT type.
*/
PJ_DEF(pj_status_t) pjsua_get_nat_type(pj_stun_nat_type *type)
{
*type = pjsua_var.nat_type;
return pjsua_var.nat_status;
}
/*
* Verify that valid SIP url is given.
*/
PJ_DEF(pj_status_t) pjsua_verify_sip_url(const char *c_url)
{
pjsip_uri *p;
pj_pool_t *pool;
char *url;
int len = (c_url ? pj_ansi_strlen(c_url) : 0);
if (!len) return -1;
pool = pj_pool_create(&pjsua_var.cp.factory, "check%p", 1024, 0, NULL);
if (!pool) return -1;
url = (char*) pj_pool_alloc(pool, len+1);
pj_ansi_strcpy(url, c_url);
p = pjsip_parse_uri(pool, url, len, 0);
if (!p || (pj_stricmp2(pjsip_uri_get_scheme(p), "sip") != 0 &&
pj_stricmp2(pjsip_uri_get_scheme(p), "sips") != 0))
{
p = NULL;
}
pj_pool_release(pool);
return p ? 0 : -1;
}
/*
* This is a utility function to dump the stack states to log, using
* verbosity level 3.
*/
PJ_DEF(void) pjsua_dump(pj_bool_t detail)
{
unsigned old_decor;
unsigned i;
char buf[1024];
PJ_LOG(3,(THIS_FILE, "Start dumping application states:"));
old_decor = pj_log_get_decor();
pj_log_set_decor(old_decor & (PJ_LOG_HAS_NEWLINE | PJ_LOG_HAS_CR));
if (detail)
pj_dump_config();
pjsip_endpt_dump(pjsua_get_pjsip_endpt(), detail);
pjmedia_endpt_dump(pjsua_get_pjmedia_endpt());
PJ_LOG(3,(THIS_FILE, "Dumping media transports:"));
for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
pjsua_call *call = &pjsua_var.calls[i];
pjmedia_sock_info skinfo;
/* MSVC complains about skinfo not being initialized */
pj_bzero(&skinfo, sizeof(skinfo));
pjmedia_transport_get_info(call->med_tp, &skinfo);
PJ_LOG(3,(THIS_FILE, " %s: %s:%d",
(pjsua_var.media_cfg.enable_ice ? "ICE" : "UDP"),
pj_inet_ntoa(skinfo.rtp_addr_name.sin_addr),
(int)pj_ntohs(skinfo.rtp_addr_name.sin_port)));
}
pjsip_tsx_layer_dump(detail);
pjsip_ua_dump(detail);
/* Dump all invite sessions: */
PJ_LOG(3,(THIS_FILE, "Dumping invite sessions:"));
if (pjsua_call_get_count() == 0) {
PJ_LOG(3,(THIS_FILE, " - no sessions -"));
} else {
unsigned i;
for (i=0; i<pjsua_var.ua_cfg.max_calls; ++i) {
if (pjsua_call_is_active(i)) {
pjsua_call_dump(i, detail, buf, sizeof(buf), " ");
PJ_LOG(3,(THIS_FILE, "%s", buf));
}
}
}
/* Dump presence status */
pjsua_pres_dump(detail);
pj_log_set_decor(old_decor);
PJ_LOG(3,(THIS_FILE, "Dump complete"));
}
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