sysmocom
/
pjproject
11
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
pjproject/pjsip/src/pjsua-lib/pjsua_core.c

2616 lines
67 KiB
C
Raw Blame History

/* $Id$ */
/*
* Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 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"
/* Internal prototypes */
static void resolve_stun_entry(pjsua_stun_resolve *sess);
/* 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(1,(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_list_init(&pjsua_var.stun_res);
pj_list_init(&pjsua_var.outbound_proxy);
pjsua_config_default(&pjsua_var.ua_cfg);
}
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_LOG_HAS_SPACE;
#if defined(PJ_WIN32) && PJ_WIN32 != 0
cfg->decor |= PJ_LOG_HAS_COLOR;
#endif
}
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 = ((PJSUA_MAX_CALLS) < 4) ? (PJSUA_MAX_CALLS) : 4;
cfg->thread_cnt = 1;
cfg->nat_type_in_sdp = 1;
cfg->stun_ignore_failure = PJ_TRUE;
cfg->force_lr = PJ_TRUE;
cfg->enable_unsolicited_mwi = PJ_TRUE;
#if defined(PJMEDIA_HAS_SRTP) && (PJMEDIA_HAS_SRTP != 0)
cfg->use_srtp = PJSUA_DEFAULT_USE_SRTP;
cfg->srtp_secure_signaling = PJSUA_DEFAULT_SRTP_SECURE_SIGNALING;
#endif
cfg->hangup_forked_call = PJ_TRUE;
pjsip_timer_setting_default(&cfg->timer_setting);
}
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);
for (i=0; i<src->stun_srv_cnt; ++i) {
pj_strdup_with_null(pool, &dst->stun_srv[i], &src->stun_srv[i]);
}
}
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);
pjsip_media_type_init(&msg_data->multipart_ctype, NULL, NULL);
pj_list_init(&msg_data->multipart_parts);
}
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->unreg_timeout = PJSUA_UNREG_TIMEOUT;
pjsip_publishc_opt_default(&cfg->publish_opt);
cfg->unpublish_max_wait_time_msec = PJSUA_UNPUBLISH_MAX_WAIT_TIME_MSEC;
cfg->transport_id = PJSUA_INVALID_ID;
cfg->allow_contact_rewrite = PJ_TRUE;
cfg->require_100rel = pjsua_var.ua_cfg.require_100rel;
cfg->require_timer = pjsua_var.ua_cfg.require_timer;
cfg->timer_setting = pjsua_var.ua_cfg.timer_setting;
cfg->ka_interval = 15;
cfg->ka_data = pj_str("\r\n");
#if defined(PJMEDIA_HAS_SRTP) && (PJMEDIA_HAS_SRTP != 0)
cfg->use_srtp = pjsua_var.ua_cfg.use_srtp;
cfg->srtp_secure_signaling = pjsua_var.ua_cfg.srtp_secure_signaling;
cfg->srtp_optional_dup_offer = pjsua_var.ua_cfg.srtp_optional_dup_offer;
#endif
cfg->reg_retry_interval = PJSUA_REG_RETRY_INTERVAL;
cfg->contact_rewrite_method = PJSUA_CONTACT_REWRITE_METHOD;
cfg->reg_use_proxy = PJSUA_REG_USE_OUTBOUND_PROXY |
PJSUA_REG_USE_ACC_PROXY;
}
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->snd_clock_rate = 0;
cfg->channel_count = 1;
cfg->audio_frame_ptime = PJSUA_DEFAULT_AUDIO_FRAME_PTIME;
cfg->max_media_ports = PJSUA_MAX_CONF_PORTS;
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->snd_rec_latency = PJMEDIA_SND_DEFAULT_REC_LATENCY;
cfg->snd_play_latency = PJMEDIA_SND_DEFAULT_PLAY_LATENCY;
cfg->jb_init = cfg->jb_min_pre = cfg->jb_max_pre = cfg->jb_max = -1;
cfg->snd_auto_close_time = 1;
cfg->ice_max_host_cands = -1;
pj_ice_sess_options_default(&cfg->ice_opt);
cfg->turn_conn_type = PJ_TURN_TP_UDP;
}
/*****************************************************************************
* 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_transport_info tpinfo;
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;
}
/* Don't want to handle if shutdown is in progress */
if (pjsua_var.thread_quit_flag) {
pjsip_endpt_respond_stateless(pjsua_var.endpt, rdata,
PJSIP_SC_TEMPORARILY_UNAVAILABLE, NULL,
NULL, NULL);
return PJ_TRUE;
}
/* 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, make sure transport is ready */
if (pjsua_var.calls[0].med_tp) {
pjmedia_transport_info_init(&tpinfo);
pjmedia_transport_get_info(pjsua_var.calls[0].med_tp, &tpinfo);
/* Add SDP body, using call0's RTP address */
status = pjmedia_endpt_create_sdp(pjsua_var.med_endpt, tdata->pool, 1,
&tpinfo.sock_info, &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);
/* Set log level */
pj_log_set_level(pjsua_var.log_cfg.level);
/* 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) {
unsigned flags = PJ_O_WRONLY;
flags |= pjsua_var.log_cfg.log_file_flags;
status = pj_file_open(pjsua_var.pool,
pjsua_var.log_cfg.log_filename.ptr,
flags,
&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;
}
/* Init random seed */
static void init_random_seed(void)
{
pj_sockaddr addr;
const pj_str_t *hostname;
pj_uint32_t pid;
pj_time_val t;
unsigned seed=0;
/* Add hostname */
hostname = pj_gethostname();
seed = pj_hash_calc(seed, hostname->ptr, (int)hostname->slen);
/* Add primary IP address */
if (pj_gethostip(pj_AF_INET(), &addr)==PJ_SUCCESS)
seed = pj_hash_calc(seed, &addr.ipv4.sin_addr, 4);
/* Get timeofday */
pj_gettimeofday(&t);
seed = pj_hash_calc(seed, &t, sizeof(t));
/* Add PID */
pid = pj_getpid();
seed = pj_hash_calc(seed, &pid, sizeof(pid));
/* Init random seed */
pj_srand(seed);
}
/*
* 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 random seed */
init_random_seed();
/* 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 = PJMEDIA_AUD_DEFAULT_CAPTURE_DEV;
pjsua_var.play_dev = PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV;
/* Init caching pool. */
pj_caching_pool_init(&pjsua_var.cp, NULL, 0);
/* Create memory pool for application. */
pjsua_var.pool = pjsua_pool_create("pjsua", 1000, 1000);
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 };
pjsip_ua_init_param ua_init_param;
unsigned i;
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);
if (status != PJ_SUCCESS)
return 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: */
pj_bzero(&ua_init_param, sizeof(ua_init_param));
if (ua_cfg->hangup_forked_call) {
ua_init_param.on_dlg_forked = &on_dlg_forked;
}
status = pjsip_ua_init_module( pjsua_var.endpt, &ua_init_param);
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 session timer support */
status = pjsip_timer_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);
}
/* Parse outbound proxies */
for (i=0; i<ua_cfg->outbound_proxy_cnt; ++i) {
pj_str_t tmp;
pj_str_t hname = { "Route", 5};
pjsip_route_hdr *r;
pj_strdup_with_null(pjsua_var.pool, &tmp, &ua_cfg->outbound_proxy[i]);
r = (pjsip_route_hdr*)
pjsip_parse_hdr(pjsua_var.pool, &hname, tmp.ptr,
(unsigned)tmp.slen, NULL);
if (r == NULL) {
pjsua_perror(THIS_FILE, "Invalid outbound proxy URI",
PJSIP_EINVALIDURI);
return PJSIP_EINVALIDURI;
}
if (pjsua_var.ua_cfg.force_lr) {
pjsip_sip_uri *sip_url;
if (!PJSIP_URI_SCHEME_IS_SIP(r->name_addr.uri) &&
!PJSIP_URI_SCHEME_IS_SIP(r->name_addr.uri))
{
return PJSIP_EINVALIDSCHEME;
}
sip_url = (pjsip_sip_uri*)r->name_addr.uri;
sip_url->lr_param = 1;
}
pj_list_push_back(&pjsua_var.outbound_proxy, r);
}
/* Initialize PJSUA call subsystem: */
status = pjsua_call_subsys_init(ua_cfg);
if (status != PJ_SUCCESS)
goto on_error;
/* Convert deprecated STUN settings */
if (pjsua_var.ua_cfg.stun_srv_cnt==0) {
if (pjsua_var.ua_cfg.stun_domain.slen) {
pjsua_var.ua_cfg.stun_srv[pjsua_var.ua_cfg.stun_srv_cnt++] =
pjsua_var.ua_cfg.stun_domain;
}
if (pjsua_var.ua_cfg.stun_host.slen) {
pjsua_var.ua_cfg.stun_srv[pjsua_var.ua_cfg.stun_srv_cnt++] =
pjsua_var.ua_cfg.stun_host;
}
}
/* Start resolving STUN server */
status = 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);
/* Initialize MWI support */
status = pjsip_mwi_init_module(pjsua_var.endpt, pjsip_evsub_instance());
/* 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)
{
pj_time_val timeout, now;
pj_gettimeofday(&timeout);
timeout.msec += msec;
pj_time_val_normalize(&timeout);
do {
int i;
i = msec / 10;
while (pjsua_handle_events(10) > 0 && i > 0)
--i;
pj_gettimeofday(&now);
} while (PJ_TIME_VAL_LT(now, timeout));
}
/* Internal function to destroy STUN resolution session
* (pj_stun_resolve).
*/
static void destroy_stun_resolve(pjsua_stun_resolve *sess)
{
PJSUA_LOCK();
pj_list_erase(sess);
PJSUA_UNLOCK();
pj_assert(sess->stun_sock==NULL);
pj_pool_release(sess->pool);
}
/* This is the internal function to be called when STUN resolution
* session (pj_stun_resolve) has completed.
*/
static void stun_resolve_complete(pjsua_stun_resolve *sess)
{
pj_stun_resolve_result result;
pj_bzero(&result, sizeof(result));
result.token = sess->token;
result.status = sess->status;
result.name = sess->srv[sess->idx];
pj_memcpy(&result.addr, &sess->addr, sizeof(result.addr));
if (result.status == PJ_SUCCESS) {
char addr[PJ_INET6_ADDRSTRLEN+10];
pj_sockaddr_print(&result.addr, addr, sizeof(addr), 3);
PJ_LOG(4,(THIS_FILE,
"STUN resolution success, using %.*s, address is %s",
(int)sess->srv[sess->idx].slen,
sess->srv[sess->idx].ptr,
addr));
} else {
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(result.status, errmsg, sizeof(errmsg));
PJ_LOG(1,(THIS_FILE, "STUN resolution failed: %s", errmsg));
}
sess->cb(&result);
if (!sess->blocking) {
destroy_stun_resolve(sess);
}
}
/* This is the callback called by the STUN socket (pj_stun_sock)
* to report it's state. We use this as part of testing the
* STUN server.
*/
static pj_bool_t test_stun_on_status(pj_stun_sock *stun_sock,
pj_stun_sock_op op,
pj_status_t status)
{
pjsua_stun_resolve *sess;
sess = (pjsua_stun_resolve*) pj_stun_sock_get_user_data(stun_sock);
pj_assert(stun_sock == sess->stun_sock);
if (status != PJ_SUCCESS) {
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(4,(THIS_FILE, "STUN resolution for %.*s failed: %s",
(int)sess->srv[sess->idx].slen,
sess->srv[sess->idx].ptr, errmsg));
sess->status = status;
pj_stun_sock_destroy(stun_sock);
sess->stun_sock = NULL;
++sess->idx;
resolve_stun_entry(sess);
return PJ_FALSE;
} else if (op == PJ_STUN_SOCK_BINDING_OP) {
pj_stun_sock_info ssi;
pj_stun_sock_get_info(stun_sock, &ssi);
pj_memcpy(&sess->addr, &ssi.srv_addr, sizeof(sess->addr));
sess->status = PJ_SUCCESS;
pj_stun_sock_destroy(stun_sock);
sess->stun_sock = NULL;
stun_resolve_complete(sess);
return PJ_FALSE;
} else
return PJ_TRUE;
}
/* This is an internal function to resolve and test current
* server entry in pj_stun_resolve session. It is called by
* pjsua_resolve_stun_servers() and test_stun_on_status() above
*/
static void resolve_stun_entry(pjsua_stun_resolve *sess)
{
/* Loop while we have entry to try */
for (; sess->idx < sess->count; ++sess->idx) {
const int af = pj_AF_INET();
pj_str_t hostpart;
pj_uint16_t port;
pj_stun_sock_cb stun_sock_cb;
pj_assert(sess->idx < sess->count);
/* Parse the server entry into host:port */
sess->status = pj_sockaddr_parse2(af, 0, &sess->srv[sess->idx],
&hostpart, &port, NULL);
if (sess->status != PJ_SUCCESS) {
PJ_LOG(2,(THIS_FILE, "Invalid STUN server entry %.*s",
(int)sess->srv[sess->idx].slen,
sess->srv[sess->idx].ptr));
continue;
}
/* Use default port if not specified */
if (port == 0)
port = PJ_STUN_PORT;
pj_assert(sess->stun_sock == NULL);
PJ_LOG(4,(THIS_FILE, "Trying STUN server %.*s (%d of %d)..",
(int)sess->srv[sess->idx].slen,
sess->srv[sess->idx].ptr,
sess->idx+1, sess->count));
/* Use STUN_sock to test this entry */
pj_bzero(&stun_sock_cb, sizeof(stun_sock_cb));
stun_sock_cb.on_status = &test_stun_on_status;
sess->status = pj_stun_sock_create(&pjsua_var.stun_cfg, "stunresolve",
pj_AF_INET(), &stun_sock_cb,
NULL, sess, &sess->stun_sock);
if (sess->status != PJ_SUCCESS) {
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(sess->status, errmsg, sizeof(errmsg));
PJ_LOG(4,(THIS_FILE,
"Error creating STUN socket for %.*s: %s",
(int)sess->srv[sess->idx].slen,
sess->srv[sess->idx].ptr, errmsg));
continue;
}
sess->status = pj_stun_sock_start(sess->stun_sock, &hostpart,
port, pjsua_var.resolver);
if (sess->status != PJ_SUCCESS) {
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(sess->status, errmsg, sizeof(errmsg));
PJ_LOG(4,(THIS_FILE,
"Error starting STUN socket for %.*s: %s",
(int)sess->srv[sess->idx].slen,
sess->srv[sess->idx].ptr, errmsg));
pj_stun_sock_destroy(sess->stun_sock);
sess->stun_sock = NULL;
continue;
}
/* Done for now, testing will resume/complete asynchronously in
* stun_sock_cb()
*/
return;
}
if (sess->idx >= sess->count) {
/* No more entries to try */
PJ_ASSERT_ON_FAIL(sess->status != PJ_SUCCESS,
sess->status = PJ_EUNKNOWN);
stun_resolve_complete(sess);
}
}
/*
* Resolve STUN server.
*/
PJ_DEF(pj_status_t) pjsua_resolve_stun_servers( unsigned count,
pj_str_t srv[],
pj_bool_t wait,
void *token,
pj_stun_resolve_cb cb)
{
pj_pool_t *pool;
pjsua_stun_resolve *sess;
pj_status_t status;
unsigned i;
PJ_ASSERT_RETURN(count && srv && cb, PJ_EINVAL);
pool = pjsua_pool_create("stunres", 256, 256);
if (!pool)
return PJ_ENOMEM;
sess = PJ_POOL_ZALLOC_T(pool, pjsua_stun_resolve);
sess->pool = pool;
sess->token = token;
sess->cb = cb;
sess->count = count;
sess->blocking = wait;
sess->status = PJ_EPENDING;
sess->srv = (pj_str_t*) pj_pool_calloc(pool, count, sizeof(pj_str_t));
for (i=0; i<count; ++i) {
pj_strdup(pool, &sess->srv[i], &srv[i]);
}
PJSUA_LOCK();
pj_list_push_back(&pjsua_var.stun_res, sess);
PJSUA_UNLOCK();
resolve_stun_entry(sess);
if (!wait)
return PJ_SUCCESS;
while (sess->status == PJ_EPENDING) {
pjsua_handle_events(50);
}
status = sess->status;
destroy_stun_resolve(sess);
return status;
}
/*
* Cancel pending STUN resolution.
*/
PJ_DEF(pj_status_t) pjsua_cancel_stun_resolution( void *token,
pj_bool_t notify_cb)
{
pjsua_stun_resolve *sess;
unsigned cancelled_count = 0;
PJSUA_LOCK();
sess = pjsua_var.stun_res.next;
while (sess != &pjsua_var.stun_res) {
pjsua_stun_resolve *next = sess->next;
if (sess->token == token) {
if (notify_cb) {
pj_stun_resolve_result result;
pj_bzero(&result, sizeof(result));
result.token = token;
result.status = PJ_ECANCELLED;
sess->cb(&result);
}
destroy_stun_resolve(sess);
++cancelled_count;
}
sess = next;
}
PJSUA_UNLOCK();
return cancelled_count ? PJ_SUCCESS : PJ_ENOTFOUND;
}
static void internal_stun_resolve_cb(const pj_stun_resolve_result *result)
{
pjsua_var.stun_status = result->status;
if (result->status == PJ_SUCCESS) {
pj_memcpy(&pjsua_var.stun_srv, &result->addr, sizeof(result->addr));
}
}
/*
* Resolve STUN server.
*/
pj_status_t resolve_stun_server(pj_bool_t wait)
{
if (pjsua_var.stun_status == PJ_EUNKNOWN) {
pj_status_t status;
/* 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 */
if (pjsua_var.ua_cfg.stun_srv_cnt) {
pjsua_var.stun_status = PJ_EPENDING;
status = pjsua_resolve_stun_servers(pjsua_var.ua_cfg.stun_srv_cnt,
pjsua_var.ua_cfg.stun_srv,
wait, NULL,
&internal_stun_resolve_cb);
if (wait || status != PJ_SUCCESS) {
pjsua_var.stun_status = status;
}
} else {
pjsua_var.stun_status = PJ_SUCCESS;
}
} 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);
}
}
if (pjsua_var.stun_status != PJ_EPENDING &&
pjsua_var.stun_status != PJ_SUCCESS &&
pjsua_var.ua_cfg.stun_ignore_failure)
{
PJ_LOG(2,(THIS_FILE,
"Ignoring STUN resolution failure (by setting)"));
pjsua_var.stun_status = PJ_SUCCESS;
}
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) {
unsigned max_wait;
PJ_LOG(4,(THIS_FILE, "Shutting down..."));
/* Terminate all calls. */
pjsua_call_hangup_all();
/* Set all accounts to offline */
for (i=0; i<(int)PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
if (!pjsua_var.acc[i].valid)
continue;
pjsua_var.acc[i].online_status = PJ_FALSE;
pj_bzero(&pjsua_var.acc[i].rpid, sizeof(pjrpid_element));
}
/* Terminate all presence subscriptions. */
pjsua_pres_shutdown();
/* Destroy media (to shutdown media transports etc) */
pjsua_media_subsys_destroy();
/* Wait for sometime until all publish client sessions are done
* (ticket #364)
*/
/* First stage, get the maximum wait time */
max_wait = 100;
for (i=0; i<(int)PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
if (!pjsua_var.acc[i].valid)
continue;
if (pjsua_var.acc[i].cfg.unpublish_max_wait_time_msec > max_wait)
max_wait = pjsua_var.acc[i].cfg.unpublish_max_wait_time_msec;
}
/* Second stage, wait for unpublications to complete */
for (i=0; i<(int)(max_wait/50); ++i) {
unsigned j;
for (j=0; j<PJ_ARRAY_SIZE(pjsua_var.acc); ++j) {
if (!pjsua_var.acc[j].valid)
continue;
if (pjsua_var.acc[j].publish_sess)
break;
}
if (j != PJ_ARRAY_SIZE(pjsua_var.acc))
busy_sleep(50);
else
break;
}
/* Third stage, forcefully destroy unfinished unpublications */
for (i=0; i<(int)PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
if (pjsua_var.acc[i].publish_sess) {
pjsip_publishc_destroy(pjsua_var.acc[i].publish_sess);
pjsua_var.acc[i].publish_sess = NULL;
}
}
/* Unregister all accounts */
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);
}
}
/* Terminate any pending STUN resolution */
if (!pj_list_empty(&pjsua_var.stun_res)) {
pjsua_stun_resolve *sess = pjsua_var.stun_res.next;
while (sess != &pjsua_var.stun_res) {
pjsua_stun_resolve *next = sess->next;
destroy_stun_resolve(sess);
sess = next;
}
}
/* Wait until all unregistrations are done (ticket #364) */
/* First stage, get the maximum wait time */
max_wait = 100;
for (i=0; i<(int)PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
if (!pjsua_var.acc[i].valid)
continue;
if (pjsua_var.acc[i].cfg.unreg_timeout > max_wait)
max_wait = pjsua_var.acc[i].cfg.unreg_timeout;
}
/* Second stage, wait for unregistrations to complete */
for (i=0; i<(int)(max_wait/50); ++i) {
unsigned j;
for (j=0; j<PJ_ARRAY_SIZE(pjsua_var.acc); ++j) {
if (!pjsua_var.acc[j].valid)
continue;
if (pjsua_var.acc[j].regc)
break;
}
if (j != PJ_ARRAY_SIZE(pjsua_var.acc))
busy_sleep(50);
else
break;
}
/* Note variable 'i' is used below */
/* Wait for some time to allow unregistration and ICE/TURN
* transports shutdown to complete:
*/
if (i < 20)
busy_sleep(1000 - i*50);
PJ_LOG(4,(THIS_FILE, "Destroying..."));
/* Must destroy endpoint first before destroying pools in
* buddies or accounts, since shutting down transaction layer
* may emit events which trigger some buddy or account callbacks
* to be called.
*/
pjsip_endpt_destroy(pjsua_var.endpt);
pjsua_var.endpt = NULL;
/* Destroy pool in the buddy object */
for (i=0; i<(int)PJ_ARRAY_SIZE(pjsua_var.buddy); ++i) {
if (pjsua_var.buddy[i].pool) {
pj_pool_release(pjsua_var.buddy[i].pool);
pjsua_var.buddy[i].pool = NULL;
}
}
/* Destroy accounts */
for (i=0; i<(int)PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
if (pjsua_var.acc[i].pool) {
pj_pool_release(pjsua_var.acc[i].pool);
pjsua_var.acc[i].pool = 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
return pj_symbianos_poll(-1, 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.
*/
/*
* Tools to get address string.
*/
static const char *addr_string(const pj_sockaddr_t *addr)
{
static char str[128];
str[0] = '\0';
pj_inet_ntop(((const pj_sockaddr*)addr)->addr.sa_family,
pj_sockaddr_get_addr(addr),
str, sizeof(str));
return str;
}
void pjsua_acc_on_tp_state_changed(pjsip_transport *tp,
pjsip_transport_state state,
const pjsip_transport_state_info *info);
/* Callback to receive transport state notifications */
static void on_tp_state_callback(pjsip_transport *tp,
pjsip_transport_state state,
const pjsip_transport_state_info *info)
{
if (pjsua_var.ua_cfg.cb.on_transport_state) {
(*pjsua_var.ua_cfg.cb.on_transport_state)(tp, state, info);
}
if (pjsua_var.old_tp_cb) {
(*pjsua_var.old_tp_cb)(tp, state, info);
}
pjsua_acc_on_tp_state_changed(tp, state, info);
}
/*
* Create and initialize SIP socket (and possibly resolve public
* address via STUN, depending on config).
*/
static pj_status_t create_sip_udp_sock(int af,
const pjsua_transport_config *cfg,
pj_sock_t *p_sock,
pj_sockaddr *p_pub_addr)
{
char stun_ip_addr[PJ_INET6_ADDRSTRLEN];
unsigned port = cfg->port;
pj_str_t stun_srv;
pj_sock_t sock;
pj_sockaddr bind_addr;
pj_status_t status;
/* Make sure STUN server resolution has completed */
status = resolve_stun_server(PJ_TRUE);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error resolving STUN server", status);
return status;
}
/* Initialize bound address */
if (cfg->bound_addr.slen) {
status = pj_sockaddr_init(af, &bind_addr, &cfg->bound_addr,
(pj_uint16_t)port);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Unable to resolve transport bound address",
status);
return status;
}
} else {
pj_sockaddr_init(af, &bind_addr, NULL, (pj_uint16_t)port);
}
/* Create socket */
status = pj_sock_socket(af, pj_SOCK_DGRAM(), 0, &sock);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "socket() error", status);
return status;
}
/* Apply QoS, if specified */
status = pj_sock_apply_qos2(sock, cfg->qos_type,
&cfg->qos_params,
2, THIS_FILE, "SIP UDP socket");
/* Bind socket */
status = pj_sock_bind(sock, &bind_addr, pj_sockaddr_get_len(&bind_addr));
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 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_sockaddr_get_port(&bound_addr);
}
if (pjsua_var.stun_srv.addr.sa_family != 0) {
pj_ansi_strcpy(stun_ip_addr,pj_inet_ntoa(pjsua_var.stun_srv.ipv4.sin_addr));
stun_srv = pj_str(stun_ip_addr);
} else {
stun_srv.slen = 0;
}
/* Get the published address, either by STUN or by resolving
* the name of local host.
*/
if (pj_sockaddr_has_addr(p_pub_addr)) {
/*
* Public address is already specified, no need to resolve the
* address, only set the port.
*/
if (pj_sockaddr_get_port(p_pub_addr) == 0)
pj_sockaddr_set_port(p_pub_addr, (pj_uint16_t)port);
} else if (stun_srv.slen) {
/*
* STUN is specified, resolve the address with STUN.
*/
if (af != pj_AF_INET()) {
pjsua_perror(THIS_FILE, "Cannot use STUN", PJ_EAFNOTSUP);
pj_sock_close(sock);
return PJ_EAFNOTSUP;
}
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->ipv4);
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));
if (pj_sockaddr_has_addr(&bind_addr)) {
pj_sockaddr_copy_addr(p_pub_addr, &bind_addr);
} else {
status = pj_gethostip(af, p_pub_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->addr.sa_family = (pj_uint16_t)af;
pj_sockaddr_set_port(p_pub_addr, (pj_uint16_t)port);
}
*p_sock = sock;
PJ_LOG(4,(THIS_FILE, "SIP UDP socket reachable at %s:%d",
addr_string(p_pub_addr),
(int)pj_sockaddr_get_port(p_pub_addr)));
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 || type==PJSIP_TRANSPORT_UDP6) {
/*
* Create UDP transport (IPv4 or IPv6).
*/
pjsua_transport_config config;
char hostbuf[PJ_INET6_ADDRSTRLEN];
pj_sock_t sock = PJ_INVALID_SOCKET;
pj_sockaddr 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 the public address from the config, if any */
pj_sockaddr_init(pjsip_transport_type_get_af(type), &pub_addr,
NULL, (pj_uint16_t)cfg->port);
if (cfg->public_addr.slen) {
status = pj_sockaddr_set_str_addr(pjsip_transport_type_get_af(type),
&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(pjsip_transport_type_get_af(type),
cfg, &sock, &pub_addr);
if (status != PJ_SUCCESS)
goto on_return;
pj_ansi_strcpy(hostbuf, addr_string(&pub_addr));
addr_name.host = pj_str(hostbuf);
addr_name.port = pj_sockaddr_get_port(&pub_addr);
/* Create UDP transport */
status = pjsip_udp_transport_attach2(pjsua_var.endpt, type, 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 || type == PJSIP_TRANSPORT_TCP6) {
/*
* Create TCP transport.
*/
pjsua_transport_config config;
pjsip_tpfactory *tcp;
pjsip_tcp_transport_cfg tcp_cfg;
pjsip_tcp_transport_cfg_default(&tcp_cfg, pj_AF_INET());
/* Supply default config if it's not specified */
if (cfg == NULL) {
pjsua_transport_config_default(&config);
cfg = &config;
}
/* Configure bind address */
if (cfg->port)
pj_sockaddr_set_port(&tcp_cfg.bind_addr, (pj_uint16_t)cfg->port);
if (cfg->bound_addr.slen) {
status = pj_sockaddr_set_str_addr(tcp_cfg.af,
&tcp_cfg.bind_addr,
&cfg->bound_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Unable to resolve transport bound address",
status);
goto on_return;
}
}
/* Set published name */
if (cfg->public_addr.slen)
tcp_cfg.addr_name.host = cfg->public_addr;
/* Copy the QoS settings */
tcp_cfg.qos_type = cfg->qos_type;
pj_memcpy(&tcp_cfg.qos_params, &cfg->qos_params,
sizeof(cfg->qos_params));
/* Create the TCP transport */
status = pjsip_tcp_transport_start3(pjsua_var.endpt, &tcp_cfg, &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.
*/
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;
}
/* Set transport state callback */
if (pjsua_var.ua_cfg.cb.on_transport_state) {
pjsip_tp_state_callback tpcb;
pjsip_tpmgr *tpmgr;
tpmgr = pjsip_endpt_get_tpmgr(pjsua_var.endpt);
tpcb = pjsip_tpmgr_get_state_cb(tpmgr);
if (tpcb != &on_tp_state_callback) {
pjsua_var.old_tp_cb = tpcb;
pjsip_tpmgr_set_state_cb(tpmgr, &on_tp_state_callback);
}
}
/* 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;
}
/* Multipart */
if (!pj_list_empty(&msg_data->multipart_parts) &&
msg_data->multipart_ctype.type.slen)
{
pjsip_msg_body *bodies;
pjsip_multipart_part *part;
pj_str_t *boundary = NULL;
bodies = pjsip_multipart_create(tdata->pool,
&msg_data->multipart_ctype,
boundary);
part = msg_data->multipart_parts.next;
while (part != &msg_data->multipart_parts) {
pjsip_multipart_part *part_copy;
part_copy = pjsip_multipart_clone_part(tdata->pool, part);
pjsip_multipart_add_part(tdata->pool, bodies, part_copy);
part = part->next;
}
if (tdata->msg->body) {
part = pjsip_multipart_create_part(tdata->pool);
part->body = tdata->msg->body;
pjsip_multipart_add_part(tdata->pool, bodies, part);
tdata->msg->body = NULL;
}
tdata->msg->body = bodies;
}
}
/*
* 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 = 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;
}
/*
* Schedule a timer entry.
*/
PJ_DEF(pj_status_t) pjsua_schedule_timer( pj_timer_entry *entry,
const pj_time_val *delay)
{
return pjsip_endpt_schedule_timer(pjsua_var.endpt, entry, delay);
}
/*
* Cancel the previously scheduled timer.
*
*/
PJ_DEF(void) pjsua_cancel_timer(pj_timer_entry *entry)
{
pjsip_endpt_cancel_timer(pjsua_var.endpt, entry);
}
/**
* Normalize route URI (check for ";lr" and append one if it doesn't
* exist and pjsua_config.force_lr is set.
*/
pj_status_t normalize_route_uri(pj_pool_t *pool, pj_str_t *uri)
{
pj_str_t tmp_uri;
pj_pool_t *tmp_pool;
pjsip_uri *uri_obj;
pjsip_sip_uri *sip_uri;
tmp_pool = pjsua_pool_create("tmplr%p", 512, 512);
if (!tmp_pool)
return PJ_ENOMEM;
pj_strdup_with_null(tmp_pool, &tmp_uri, uri);
uri_obj = pjsip_parse_uri(tmp_pool, tmp_uri.ptr, tmp_uri.slen, 0);
if (!uri_obj) {
PJ_LOG(1,(THIS_FILE, "Invalid route URI: %.*s",
(int)uri->slen, uri->ptr));
pj_pool_release(tmp_pool);
return PJSIP_EINVALIDURI;
}
if (!PJSIP_URI_SCHEME_IS_SIP(uri_obj) &&
!PJSIP_URI_SCHEME_IS_SIP(uri_obj))
{
PJ_LOG(1,(THIS_FILE, "Route URI must be SIP URI: %.*s",
(int)uri->slen, uri->ptr));
pj_pool_release(tmp_pool);
return PJSIP_EINVALIDSCHEME;
}
sip_uri = (pjsip_sip_uri*) pjsip_uri_get_uri(uri_obj);
/* Done if force_lr is disabled or if lr parameter is present */
if (!pjsua_var.ua_cfg.force_lr || sip_uri->lr_param) {
pj_pool_release(tmp_pool);
return PJ_SUCCESS;
}
/* Set lr param */
sip_uri->lr_param = 1;
/* Print the URI */
tmp_uri.ptr = (char*) pj_pool_alloc(tmp_pool, PJSIP_MAX_URL_SIZE);
tmp_uri.slen = pjsip_uri_print(PJSIP_URI_IN_ROUTING_HDR, uri_obj,
tmp_uri.ptr, PJSIP_MAX_URL_SIZE);
if (tmp_uri.slen < 1) {
PJ_LOG(1,(THIS_FILE, "Route URI is too long: %.*s",
(int)uri->slen, uri->ptr));
pj_pool_release(tmp_pool);
return PJSIP_EURITOOLONG;
}
/* Clone the URI */
pj_strdup_with_null(pool, uri, &tmp_uri);
pj_pool_release(tmp_pool);
return PJ_SUCCESS;
}
/*
* 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;
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_transport_info tpinfo;
char addr_buf[80];
/* MSVC complains about tpinfo not being initialized */
//pj_bzero(&tpinfo, sizeof(tpinfo));
pjmedia_transport_info_init(&tpinfo);
pjmedia_transport_get_info(call->med_tp, &tpinfo);
PJ_LOG(3,(THIS_FILE, " %s: %s",
(pjsua_var.media_cfg.enable_ice ? "ICE" : "UDP"),
pj_sockaddr_print(&tpinfo.sock_info.rtp_addr_name, addr_buf,
sizeof(addr_buf), 3)));
}
pjsip_tsx_layer_dump(detail);
pjsip_ua_dump(detail);
// Dumping complete call states may require a 'large' buffer
// (about 3KB per call session, including RTCP XR).
#if 0
/* 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)) {
/* Tricky logging, since call states log string tends to be
* longer than PJ_LOG_MAX_SIZE.
*/
char buf[1024 * 3];
unsigned call_dump_len;
unsigned part_len;
unsigned part_idx;
unsigned log_decor;
pjsua_call_dump(i, detail, buf, sizeof(buf), " ");
call_dump_len = strlen(buf);
log_decor = pj_log_get_decor();
pj_log_set_decor(log_decor & ~(PJ_LOG_HAS_NEWLINE |
PJ_LOG_HAS_CR));
PJ_LOG(3,(THIS_FILE, "\n"));
pj_log_set_decor(0);
part_idx = 0;
part_len = PJ_LOG_MAX_SIZE-80;
while (part_idx < call_dump_len) {
char p_orig, *p;
p = &buf[part_idx];
if (part_idx + part_len > call_dump_len)
part_len = call_dump_len - part_idx;
p_orig = p[part_len];
p[part_len] = '\0';
PJ_LOG(3,(THIS_FILE, "%s", p));
p[part_len] = p_orig;
part_idx += part_len;
}
pj_log_set_decor(log_decor);
}
}
}
#endif
/* Dump presence status */
pjsua_pres_dump(detail);
pj_log_set_decor(old_decor);
PJ_LOG(3,(THIS_FILE, "Dump complete"));
}
Reference in New Issue View Git Blame Copy Permalink