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

4044 lines
125 KiB
C
Raw Blame History

/*
* Copyright (C) 2008-2011 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"
#define DEFAULT_RTP_PORT 4000
/* 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);
for (i=0; i<PJSUA_MAX_VID_WINS; ++i) {
pjsua_vid_win_reset(i);
}
}
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 | PJ_LOG_HAS_THREAD_SWC |
PJ_LOG_HAS_INDENT;
#if (defined(PJ_WIN32) && PJ_WIN32 != 0) || (defined(PJ_WIN64) && PJ_WIN64 != 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;
cfg->thread_cnt = PJSUA_SEPARATE_WORKER_FOR_TIMER? 2 : 1;
cfg->nat_type_in_sdp = 1;
cfg->stun_ignore_failure = PJ_TRUE;
cfg->force_lr = PJ_TRUE;
cfg->enable_unsolicited_mwi = PJ_TRUE;
cfg->use_srtp = PJSUA_DEFAULT_USE_SRTP;
cfg->srtp_secure_signaling = PJSUA_DEFAULT_SRTP_SECURE_SIGNALING;
cfg->hangup_forked_call = PJ_TRUE;
cfg->use_timer = PJSUA_SIP_TIMER_OPTIONAL;
pjsip_timer_setting_default(&cfg->timer_setting);
pjsua_srtp_opt_default(&cfg->srtp_opt);
}
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]);
}
pjsua_srtp_opt_dup(pool, &dst->srtp_opt, &src->srtp_opt, PJ_FALSE);
}
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(pjsua_msg_data*) pjsua_msg_data_clone(pj_pool_t *pool,
const pjsua_msg_data *rhs)
{
pjsua_msg_data *msg_data;
const pjsip_hdr *hdr;
const pjsip_multipart_part *mpart;
PJ_ASSERT_RETURN(pool && rhs, NULL);
msg_data = PJ_POOL_ZALLOC_T(pool, pjsua_msg_data);
PJ_ASSERT_RETURN(msg_data != NULL, NULL);
pj_strdup(pool, &msg_data->target_uri, &rhs->target_uri);
pj_strdup(pool, &msg_data->local_uri, &rhs->local_uri);
pj_list_init(&msg_data->hdr_list);
hdr = rhs->hdr_list.next;
while (hdr != &rhs->hdr_list) {
pj_list_push_back(&msg_data->hdr_list, pjsip_hdr_clone(pool, hdr));
hdr = hdr->next;
}
pj_strdup(pool, &msg_data->content_type, &rhs->content_type);
pj_strdup(pool, &msg_data->msg_body, &rhs->msg_body);
pjsip_media_type_cp(pool, &msg_data->multipart_ctype,
&rhs->multipart_ctype);
pj_list_init(&msg_data->multipart_parts);
mpart = rhs->multipart_parts.next;
while (mpart != &rhs->multipart_parts) {
pj_list_push_back(&msg_data->multipart_parts,
pjsip_multipart_clone_part(pool, mpart));
mpart = mpart->next;
}
return msg_data;
}
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_memcpy(dst, src, sizeof(*src));
pj_strdup(pool, &dst->public_addr, &src->public_addr);
pj_strdup(pool, &dst->bound_addr, &src->bound_addr);
}
PJ_DEF(void) pjsua_ice_config_from_media_config( pj_pool_t *pool,
pjsua_ice_config *dst,
const pjsua_media_config *src)
{
PJ_UNUSED_ARG(pool);
dst->enable_ice = src->enable_ice;
dst->ice_max_host_cands = src->ice_max_host_cands;
dst->ice_opt = src->ice_opt;
dst->ice_no_rtcp = src->ice_no_rtcp;
dst->ice_always_update = src->ice_always_update;
}
PJ_DEF(void) pjsua_ice_config_dup( pj_pool_t *pool,
pjsua_ice_config *dst,
const pjsua_ice_config *src)
{
PJ_UNUSED_ARG(pool);
pj_memcpy(dst, src, sizeof(*src));
}
PJ_DEF(void) pjsua_turn_config_from_media_config(pj_pool_t *pool,
pjsua_turn_config *dst,
const pjsua_media_config *src)
{
dst->enable_turn = src->enable_turn;
dst->turn_conn_type = src->turn_conn_type;
if (pool == NULL) {
dst->turn_server = src->turn_server;
dst->turn_auth_cred = src->turn_auth_cred;
#if PJ_HAS_SSL_SOCK
pj_memcpy(&dst->turn_tls_setting, &src->turn_tls_setting,
sizeof(src->turn_tls_setting));
#endif
} else {
if (pj_stricmp(&dst->turn_server, &src->turn_server))
pj_strdup(pool, &dst->turn_server, &src->turn_server);
pj_stun_auth_cred_dup(pool, &dst->turn_auth_cred,
&src->turn_auth_cred);
#if PJ_HAS_SSL_SOCK
pj_turn_sock_tls_cfg_dup(pool, &dst->turn_tls_setting,
&src->turn_tls_setting);
#endif
}
}
PJ_DEF(void) pjsua_turn_config_dup(pj_pool_t *pool,
pjsua_turn_config *dst,
const pjsua_turn_config *src)
{
pj_memcpy(dst, src, sizeof(*src));
if (pool) {
pj_strdup(pool, &dst->turn_server, &src->turn_server);
pj_stun_auth_cred_dup(pool, &dst->turn_auth_cred,
&src->turn_auth_cred);
#if PJ_HAS_SSL_SOCK
pj_turn_sock_tls_cfg_dup(pool, &dst->turn_tls_setting,
&src->turn_tls_setting);
#endif
}
}
PJ_DEF(void) pjsua_srtp_opt_default(pjsua_srtp_opt *cfg)
{
pj_bzero(cfg, sizeof(*cfg));
}
PJ_DEF(void) pjsua_srtp_opt_dup( pj_pool_t *pool, pjsua_srtp_opt *dst,
const pjsua_srtp_opt *src,
pj_bool_t check_str)
{
pjsua_srtp_opt backup_dst;
if (check_str) pj_memcpy(&backup_dst, dst, sizeof(*dst));
pj_memcpy(dst, src, sizeof(*src));
if (pool) {
unsigned i;
for (i = 0; i < src->crypto_count; i++) {
if (!check_str ||
pj_stricmp(&backup_dst.crypto[i].key, &src->crypto[i].key))
{
pj_strdup(pool, &dst->crypto[i].key, &src->crypto[i].key);
} else {
/* If strings are identical, use the old string to
* avoid wasting memory.
*/
dst->crypto[i].key = backup_dst.crypto[i].key;
}
if (!check_str ||
pj_stricmp(&backup_dst.crypto[i].name, &src->crypto[i].name))
{
pj_strdup(pool, &dst->crypto[i].name, &src->crypto[i].name);
} else {
/* If strings are identical, use the old string to
* avoid wasting memory.
*/
dst->crypto[i].name = backup_dst.crypto[i].name;
}
}
}
}
PJ_DEF(void) pjsua_acc_config_default(pjsua_acc_config *cfg)
{
pjsua_media_config med_cfg;
pj_bzero(cfg, sizeof(*cfg));
cfg->reg_timeout = PJSUA_REG_INTERVAL;
cfg->reg_delay_before_refresh = PJSIP_REGISTER_CLIENT_DELAY_BEFORE_REFRESH;
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->allow_via_rewrite = PJ_TRUE;
cfg->require_100rel = pjsua_var.ua_cfg.require_100rel;
cfg->use_timer = pjsua_var.ua_cfg.use_timer;
cfg->timer_setting = pjsua_var.ua_cfg.timer_setting;
cfg->lock_codec = 1;
cfg->ka_interval = 15;
cfg->ka_data = pj_str("\r\n");
cfg->vid_cap_dev = PJMEDIA_VID_DEFAULT_CAPTURE_DEV;
cfg->vid_rend_dev = PJMEDIA_VID_DEFAULT_RENDER_DEV;
#if PJMEDIA_HAS_VIDEO
pjmedia_vid_stream_rc_config_default(&cfg->vid_stream_rc_cfg);
pjmedia_vid_stream_sk_config_default(&cfg->vid_stream_sk_cfg);
#endif
pjsua_transport_config_default(&cfg->rtp_cfg);
cfg->rtp_cfg.port = DEFAULT_RTP_PORT;
pjmedia_rtcp_fb_setting_default(&cfg->rtcp_fb_cfg);
pjsua_media_config_default(&med_cfg);
pjsua_ice_config_from_media_config(NULL, &cfg->ice_cfg, &med_cfg);
pjsua_turn_config_from_media_config(NULL, &cfg->turn_cfg, &med_cfg);
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;
cfg->srtp_opt = pjsua_var.ua_cfg.srtp_opt;
cfg->reg_retry_interval = PJSUA_REG_RETRY_INTERVAL;
cfg->reg_retry_random_interval = 10;
cfg->contact_rewrite_method = PJSUA_CONTACT_REWRITE_METHOD;
cfg->contact_use_src_port = PJ_TRUE;
cfg->use_rfc5626 = PJ_TRUE;
cfg->reg_use_proxy = PJSUA_REG_USE_OUTBOUND_PROXY |
PJSUA_REG_USE_ACC_PROXY;
#if defined(PJMEDIA_STREAM_ENABLE_KA) && PJMEDIA_STREAM_ENABLE_KA!=0
cfg->use_stream_ka = (PJMEDIA_STREAM_ENABLE_KA != 0);
pjmedia_stream_ka_config_default(&cfg->stream_ka_cfg);
#endif
pj_list_init(&cfg->reg_hdr_list);
pj_list_init(&cfg->sub_hdr_list);
cfg->call_hold_type = PJSUA_CALL_HOLD_TYPE_DEFAULT;
cfg->register_on_acc_add = PJ_TRUE;
cfg->mwi_expires = PJSIP_MWI_DEFAULT_EXPIRES;
cfg->ipv6_sip_use = PJ_HAS_IPV6? PJSUA_IPV6_ENABLED_NO_PREFERENCE :
PJSUA_IPV6_DISABLED;
cfg->ipv6_media_use = PJ_HAS_IPV6? PJSUA_IPV6_ENABLED_PREFER_IPV4 :
PJSUA_IPV6_DISABLED;
cfg->media_stun_use = PJSUA_STUN_RETRY_ON_FAILURE;
cfg->ip_change_cfg.shutdown_tp = PJ_TRUE;
cfg->ip_change_cfg.hangup_calls = PJ_FALSE;
cfg->ip_change_cfg.reinvite_flags = PJSUA_CALL_REINIT_MEDIA |
PJSUA_CALL_UPDATE_CONTACT |
PJSUA_CALL_UPDATE_VIA;
cfg->enable_rtcp_xr = (PJMEDIA_HAS_RTCP_XR && PJMEDIA_STREAM_ENABLE_XR);
}
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)
{
const pj_sys_info *si = pj_get_sys_info();
pj_str_t dev_model = {"iPhone5", 7};
pj_bzero(cfg, sizeof(*cfg));
cfg->clock_rate = PJSUA_DEFAULT_CLOCK_RATE;
/* It is reported that there may be some media server resampling problem
* with iPhone 5 devices running iOS 7, so we set the sound device's
* clock rate to 44100 to avoid resampling.
*/
if (pj_stristr(&si->machine, &dev_model) &&
((si->os_ver & 0xFF000000) >> 24) >= 7)
{
cfg->snd_clock_rate = 44100;
} else {
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->jb_discard_algo = PJMEDIA_JB_DISCARD_PROGRESSIVE;
cfg->snd_auto_close_time = 1;
cfg->ice_max_host_cands = -1;
cfg->ice_always_update = PJ_TRUE;
pj_ice_sess_options_default(&cfg->ice_opt);
cfg->turn_conn_type = PJ_TURN_TP_UDP;
#if PJ_HAS_SSL_SOCK
pj_turn_sock_tls_cfg_default(&cfg->turn_tls_setting);
#endif
cfg->vid_preview_enable_native = PJ_TRUE;
}
/*****************************************************************************
* 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)
{
char addr[PJ_INET6_ADDRSTRLEN+10];
pj_str_t input_str = pj_str(rdata->pkt_info.src_name);
PJ_LOG(4,(THIS_FILE, "RX %d bytes %s from %s %s:\n"
"%.*s\n"
"--end msg--",
rdata->msg_info.len,
pjsip_rx_data_get_info(rdata),
rdata->tp_info.transport->type_name,
pj_addr_str_print(&input_str,
rdata->pkt_info.src_port,
addr,
sizeof(addr),
1),
(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)
{
char addr[PJ_INET6_ADDRSTRLEN+10];
pj_str_t input_str = pj_str(tdata->tp_info.dst_name);
/* 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 %ld bytes %s to %s %s:\n"
"%.*s\n"
"--end msg--",
(tdata->buf.cur - tdata->buf.start),
pjsip_tx_data_get_info(tdata),
tdata->tp_info.transport->type_name,
pj_addr_str_print(&input_str,
tdata->tp_info.dst_port,
addr,
sizeof(addr),
1),
(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;
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 DISABLED_FOR_TICKET_1185
if (pjsua_var.calls[0].med_tp) {
pjmedia_transport_info tpinfo;
pjmedia_sdp_session *sdp;
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);
}
}
#endif
/* Send response */
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;
#if PJSUA_DETECT_MERGED_REQUESTS
if (pjsip_tsx_detect_merged_requests(rdata)) {
PJ_LOG(4, (THIS_FILE, "Merged request detected"));
/* Respond with 482 (Loop Detected) */
pjsip_endpt_respond(pjsua_var.endpt, NULL, rdata,
PJSIP_SC_LOOP_DETECTED, NULL,
NULL, NULL, NULL);
return PJ_TRUE;
}
#endif
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 | PJ_O_CLOEXEC;
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) {
status = pjsip_endpt_register_module(pjsua_var.endpt,
&pjsua_msg_logger);
if (status != PJ_SUCCESS)
return status;
}
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;
}
#if PJSUA_SEPARATE_WORKER_FOR_TIMER
/* Timer heap worker thread function. */
static int worker_thread_timer(void *arg)
{
pj_timer_heap_t *th;
PJ_UNUSED_ARG(arg);
th = pjsip_endpt_get_timer_heap(pjsua_var.endpt);
while (!pjsua_var.thread_quit_flag) {
pj_time_val timeout = {0, 0};
int c;
c = pj_timer_heap_poll(th, &timeout);
if (c == 0) {
/* Sleep if no event */
enum { MAX_SLEEP_MS = 100 };
if (PJ_TIME_VAL_MSEC(timeout) < MAX_SLEEP_MS)
pj_thread_sleep(PJ_TIME_VAL_MSEC(timeout));
else
pj_thread_sleep(MAX_SLEEP_MS);
}
}
return 0;
}
/* Ioqueue worker thread function. */
static int worker_thread_ioqueue(void *arg)
{
pj_ioqueue_t *ioq;
PJ_UNUSED_ARG(arg);
ioq = pjsip_endpt_get_ioqueue(pjsua_var.endpt);
while (!pjsua_var.thread_quit_flag) {
pj_time_val timeout = {0, 100};
pj_ioqueue_poll(ioq, &timeout);
}
return 0;
}
#endif
PJ_DEF(void) pjsua_stop_worker_threads(void)
{
unsigned i;
pjsua_var.thread_quit_flag = 1;
/* Wait worker threads to quit: */
for (i=0; i<pjsua_var.ua_cfg.thread_cnt; ++i) {
if (pjsua_var.thread[i]) {
pj_status_t status;
status = pj_thread_join(pjsua_var.thread[i]);
if (status != PJ_SUCCESS) {
PJ_PERROR(4,(THIS_FILE, status, "Error joining worker thread"));
pj_thread_sleep(1000);
}
pj_thread_destroy(pjsua_var.thread[i]);
pjsua_var.thread[i] = NULL;
}
}
}
/* 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);
pj_log_push_indent();
/* Init random seed */
init_random_seed();
/* Init PJLIB-UTIL: */
status = pjlib_util_init();
if (status != PJ_SUCCESS) {
pj_log_pop_indent();
pjsua_perror(THIS_FILE, "Failed in initializing pjlib-util", status);
pj_shutdown();
return status;
}
/* Init PJNATH */
status = pjnath_init();
if (status != PJ_SUCCESS) {
pj_log_pop_indent();
pjsua_perror(THIS_FILE, "Failed in initializing pjnath", status);
pj_shutdown();
return status;
}
/* Set default sound device ID */
pjsua_var.cap_dev = PJMEDIA_AUD_DEFAULT_CAPTURE_DEV;
pjsua_var.play_dev = PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV;
/* Set default video device ID */
pjsua_var.vcap_dev = PJMEDIA_VID_DEFAULT_CAPTURE_DEV;
pjsua_var.vrdr_dev = PJMEDIA_VID_DEFAULT_RENDER_DEV;
/* Init caching pool. */
pj_caching_pool_init(&pjsua_var.cp, NULL, 0);
/* Create memory pools for application and internal use. */
pjsua_var.pool = pjsua_pool_create("pjsua", PJSUA_POOL_LEN, PJSUA_POOL_INC);
pjsua_var.timer_pool = pjsua_pool_create("pjsua_timer", 500, 500);
if (pjsua_var.pool == NULL || pjsua_var.timer_pool == NULL) {
pj_log_pop_indent();
status = PJ_ENOMEM;
pjsua_perror(THIS_FILE, "Unable to create pjsua/timer pool", status);
pj_shutdown();
return status;
}
/* Create mutex */
status = pj_mutex_create_recursive(pjsua_var.pool, "pjsua",
&pjsua_var.mutex);
if (status != PJ_SUCCESS) {
pj_log_pop_indent();
pjsua_perror(THIS_FILE, "Unable to create mutex", status);
pjsua_destroy();
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);
if (status != PJ_SUCCESS) {
pj_log_pop_indent();
pjsua_perror(THIS_FILE, "Unable to create endpoint", status);
pjsua_destroy();
return status;
}
/* Init timer entry and event list */
pj_list_init(&pjsua_var.active_timer_list);
pj_list_init(&pjsua_var.timer_list);
pj_list_init(&pjsua_var.event_list);
/* Create timer mutex */
status = pj_mutex_create_recursive(pjsua_var.pool, "pjsua_timer",
&pjsua_var.timer_mutex);
if (status != PJ_SUCCESS) {
pj_log_pop_indent();
pjsua_perror(THIS_FILE, "Unable to create mutex", status);
pjsua_destroy();
return status;
}
pjsua_set_state(PJSUA_STATE_CREATED);
pj_log_pop_indent();
return PJ_SUCCESS;
}
#if defined(PJNATH_HAS_UPNP) && (PJNATH_HAS_UPNP != 0)
/* UPnP callback. */
static void upnp_cb(pj_status_t status)
{
pjsua_var.upnp_status = status;
}
#endif
/*
* 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;
pj_log_push_indent();
/* 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)
goto on_error;
}
#if defined(PJ_IPHONE_OS_HAS_MULTITASKING_SUPPORT) && \
PJ_IPHONE_OS_HAS_MULTITASKING_SUPPORT != 0
if (!(pj_get_sys_info()->flags & PJ_SYS_HAS_IOS_BG)) {
PJ_LOG(5, (THIS_FILE, "Device does not support "
"background mode"));
pj_activesock_enable_iphone_os_bg(PJ_FALSE);
}
#endif
/* 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 ii;
/* 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);
goto on_error;
}
/* 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);
goto on_error;
}
/* 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);
goto on_error;
}
/* Print nameservers */
for (ii=0; ii<ua_cfg->nameserver_count; ++ii) {
PJ_LOG(4,(THIS_FILE, "Nameserver %.*s added",
(int)ua_cfg->nameserver[ii].slen,
ua_cfg->nameserver[ii].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);
status = PJSIP_EINVALIDURI;
goto on_error;
}
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_SIPS(r->name_addr.uri))
{
status = PJSIP_EINVALIDSCHEME;
goto on_error;
}
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;
}
}
#if !PJ_HAS_IPV6
pjsua_var.ua_cfg.stun_try_ipv6 = PJ_FALSE;
#endif
/* Start resolving STUN server */
status = resolve_stun_server(PJ_FALSE, PJ_FALSE, 0);
if (status != PJ_SUCCESS && status != PJ_EPENDING) {
pjsua_perror(THIS_FILE, "Error resolving STUN server", status);
goto on_error;
}
#if defined(PJNATH_HAS_UPNP) && (PJNATH_HAS_UPNP != 0)
/* Initialize UPnP if enabled */
if (pjsua_var.ua_cfg.enable_upnp) {
pj_upnp_init_param param;
pj_bzero(&param, sizeof(param));
param.factory = pjsua_var.pool->factory;
if (pjsua_var.ua_cfg.upnp_if_name.slen > 0)
param.if_name = pjsua_var.ua_cfg.upnp_if_name.ptr;
param.upnp_cb = &upnp_cb;
pjsua_var.upnp_status = pj_upnp_init(&param);
if (pjsua_var.upnp_status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error initializing UPnP",
pjsua_var.upnp_status);
}
}
#endif
/* 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 */
status = pjsip_endpt_register_module(pjsua_var.endpt,
&pjsua_options_handler);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* 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 ii;
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);
#if PJSUA_SEPARATE_WORKER_FOR_TIMER
if (pjsua_var.ua_cfg.thread_cnt < 2)
pjsua_var.ua_cfg.thread_cnt = 2;
#endif
for (ii=0; ii<pjsua_var.ua_cfg.thread_cnt; ++ii) {
char tname[16];
pj_ansi_snprintf(tname, sizeof(tname), "pjsua_%d", ii);
#if PJSUA_SEPARATE_WORKER_FOR_TIMER
if (ii == 0) {
status = pj_thread_create(pjsua_var.pool, tname,
&worker_thread_timer,
NULL, 0, 0, &pjsua_var.thread[ii]);
} else {
status = pj_thread_create(pjsua_var.pool, tname,
&worker_thread_ioqueue,
NULL, 0, 0, &pjsua_var.thread[ii]);
}
#else
status = pj_thread_create(pjsua_var.pool, tname, &worker_thread,
NULL, 0, 0, &pjsua_var.thread[ii]);
#endif
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_get_sys_info()->info.ptr));
pjsua_set_state(PJSUA_STATE_INIT);
pj_log_pop_indent();
return PJ_SUCCESS;
on_error:
pj_log_pop_indent();
return status;
}
/* Sleep with polling */
static void busy_sleep(unsigned msec)
{
pj_time_val timeout, now;
pj_gettickcount(&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_gettickcount(&now);
} while (PJ_TIME_VAL_LT(now, timeout));
}
static void stun_resolve_add_ref(pjsua_stun_resolve *sess)
{
++sess->ref_cnt;
}
static void release_stun_session(pjsua_stun_resolve *sess)
{
PJSUA_LOCK();
pj_list_erase(sess);
PJSUA_UNLOCK();
pj_assert(sess->stun_sock==NULL);
pj_pool_release(sess->pool);
}
static void destroy_stun_resolve_cb(pj_timer_heap_t *t, pj_timer_entry *e)
{
pjsua_stun_resolve *sess = (pjsua_stun_resolve*)e->user_data;
PJ_UNUSED_ARG(t);
release_stun_session(sess);
}
static void destroy_stun_resolve(pjsua_stun_resolve *sess, pj_bool_t forced)
{
pj_time_val timeout = {0, 0};
if (sess->destroy_flag)
return;
sess->destroy_flag = PJ_TRUE;
if (sess->stun_sock) {
pj_stun_sock_destroy(sess->stun_sock);
sess->stun_sock = NULL;
}
if (pjsua_var.stun_status == PJ_EUNKNOWN ||
pjsua_var.stun_status == PJ_EPENDING)
{
pjsua_var.stun_status = PJNATH_ESTUNDESTROYED;
}
if (forced) {
release_stun_session(sess);
} else {
/* Schedule session clean up, it needs PJSUA lock and locking it here
* may cause deadlock as this function may be called by STUN socket
* while holding STUN socket lock, while application may wait for STUN
* resolution while holding PJSUA lock.
*/
pj_timer_entry_init(&sess->timer, 0, (void*)sess,
&destroy_stun_resolve_cb);
pjsua_schedule_timer(&sess->timer, &timeout);
}
}
static void stun_resolve_dec_ref(pjsua_stun_resolve *sess)
{
int ref_cnt = --sess->ref_cnt;
/* If the STUN resolution session is blocking, only the waiting thread
* is allowed to destroy the session, otherwise it may cause deadlock.
*/
if ((ref_cnt > 0) ||
(sess->blocking && (sess->waiter != pj_thread_this())))
{
return;
}
destroy_stun_resolve(sess, PJ_FALSE);
}
/* 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;
if (sess->has_result)
goto on_return;
pj_bzero(&result, sizeof(result));
result.token = sess->token;
result.status = sess->status;
result.name = sess->srv[sess->idx];
result.index = sess->idx;
pj_memcpy(&result.addr, &sess->addr, sizeof(result.addr));
sess->has_result = PJ_TRUE;
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);
on_return:
if (!sess->blocking) {
stun_resolve_dec_ref(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));
if (op == PJ_STUN_SOCK_BINDING_OP && !sess->async_wait) {
/* Just return here, we will destroy the STUN socket and
* continue the STUN resolution later in resolve_stun_entry().
* For more details, please refer to ticket #1962.
*/
return PJ_FALSE;
}
pj_stun_sock_destroy(stun_sock);
sess->stun_sock = NULL;
stun_resolve_add_ref(sess);
if (pjsua_var.ua_cfg.stun_try_ipv6 && sess->af == pj_AF_INET()) {
sess->af = pj_AF_INET6();
} else {
++sess->idx;
sess->af = pj_AF_INET();
if (sess->idx >= sess->count)
sess->status = status;
}
resolve_stun_entry(sess);
stun_resolve_dec_ref(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));
stun_resolve_add_ref(sess);
sess->status = PJ_SUCCESS;
pj_stun_sock_destroy(stun_sock);
sess->stun_sock = NULL;
stun_resolve_complete(sess);
stun_resolve_dec_ref(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)
{
pj_status_t status = PJ_EUNKNOWN;
/* Loop while we have entry to try */
for (; sess->idx < sess->count;
(pjsua_var.ua_cfg.stun_try_ipv6 && sess->af == pj_AF_INET())?
sess->af = pj_AF_INET6(): (++sess->idx, sess->af = pj_AF_INET()))
{
int af;
char target[64];
pj_str_t hostpart;
pj_uint16_t port;
pj_stun_sock_cb stun_sock_cb;
pj_assert(sess->idx < sess->count);
if (pjsua_var.ua_cfg.stun_try_ipv6 &&
pjsua_var.stun_opt != PJSUA_NAT64_DISABLED &&
sess->af == pj_AF_INET())
{
/* Skip IPv4 STUN resolution if NAT64 is not disabled. */
PJ_LOG(4,(THIS_FILE, "Skipping IPv4 resolution of STUN server "
"%s (%d of %d)", target,
sess->idx+1, sess->count));
continue;
}
pj_ansi_snprintf(target, sizeof(target), "%.*s",
(int)sess->srv[sess->idx].slen,
sess->srv[sess->idx].ptr);
/* Parse the server entry into host:port */
status = pj_sockaddr_parse2(pj_AF_UNSPEC(), 0, &sess->srv[sess->idx],
&hostpart, &port, &af);
if (status != PJ_SUCCESS) {
PJ_LOG(2,(THIS_FILE, "Invalid STUN server entry %s", target));
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 %s (%d of %d)..",
target, (sess->af == pj_AF_INET()? "IPv4": "IPv6"),
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->async_wait = PJ_FALSE;
status = pj_stun_sock_create(&pjsua_var.stun_cfg, "stunresolve",
sess->af, &stun_sock_cb,
NULL, sess, &sess->stun_sock);
if (status != PJ_SUCCESS) {
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(4,(THIS_FILE,
"Error creating STUN socket for %s: %s",
target, errmsg));
continue;
}
status = pj_stun_sock_start(sess->stun_sock, &hostpart, port,
pjsua_var.resolver);
if (status != PJ_SUCCESS) {
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(4,(THIS_FILE,
"Error starting STUN socket for %s: %s",
target, errmsg));
if (sess->stun_sock) {
pj_stun_sock_destroy(sess->stun_sock);
sess->stun_sock = NULL;
}
continue;
}
/* Done for now, testing will resume/complete asynchronously in
* stun_sock_cb()
*/
sess->async_wait = PJ_TRUE;
return;
}
if (sess->idx >= sess->count) {
/* No more entries to try */
stun_resolve_add_ref(sess);
pj_assert(status != PJ_SUCCESS || sess->status != PJ_EPENDING);
if (sess->status == PJ_EPENDING)
sess->status = status;
stun_resolve_complete(sess);
stun_resolve_dec_ref(sess);
}
}
/*
* Update STUN servers.
*/
PJ_DEF(pj_status_t) pjsua_update_stun_servers(unsigned count, pj_str_t srv[],
pj_bool_t wait)
{
unsigned i;
pj_status_t status;
PJ_ASSERT_RETURN(count && srv, PJ_EINVAL);
PJSUA_LOCK();
pjsua_var.ua_cfg.stun_srv_cnt = count;
for (i = 0; i < count; i++) {
if (pj_strcmp(&pjsua_var.ua_cfg.stun_srv[i], &srv[i]))
pj_strdup(pjsua_var.pool, &pjsua_var.ua_cfg.stun_srv[i], &srv[i]);
}
pjsua_var.stun_status = PJ_EUNKNOWN;
PJSUA_UNLOCK();
status = resolve_stun_server(wait, PJ_FALSE, 0);
if (wait == PJ_FALSE && status == PJ_EPENDING)
status = PJ_SUCCESS;
return status;
}
/*
* 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, max_wait_ms;
pj_timestamp start, now;
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->waiter = pj_thread_this();
sess->status = PJ_EPENDING;
sess->af = pj_AF_INET();
stun_resolve_add_ref(sess);
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;
/* Should limit the wait time to avoid deadlock. For example,
* if app holds dlg/tsx lock, pjsua worker thread will block on
* any dlg/tsx state change.
*/
max_wait_ms = count * pjsua_var.stun_cfg.rto_msec * (1 << 7);
pj_get_timestamp(&start);
while ((sess->status == PJ_EPENDING) && (!sess->destroy_flag)) {
/* If there is no worker thread or
* the function is called from the only worker thread,
* we have to handle the events here.
*/
if (pjsua_var.thread[0] == NULL ||
(pj_thread_this() == pjsua_var.thread[0] &&
pjsua_var.ua_cfg.thread_cnt == 1))
{
pjsua_handle_events(50);
} else {
pj_thread_sleep(20);
}
pj_get_timestamp(&now);
if (pj_elapsed_msec(&start, &now) > max_wait_ms)
sess->status = PJ_ETIMEDOUT;
}
status = sess->status;
stun_resolve_dec_ref(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) {
sess->has_result = PJ_TRUE;
sess->status = PJ_ECANCELLED;
if (notify_cb) {
pj_stun_resolve_result result;
pj_bzero(&result, sizeof(result));
result.token = token;
result.status = PJ_ECANCELLED;
sess->cb(&result);
}
++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) && (pjsua_var.ua_cfg.stun_srv_cnt>0)) {
pj_memcpy(&pjsua_var.stun_srv, &result->addr, sizeof(result->addr));
pjsua_var.stun_srv_idx = result->index;
/* Perform NAT type detection if not yet */
if (pjsua_var.nat_type == PJ_STUN_NAT_TYPE_UNKNOWN &&
!pjsua_var.nat_in_progress &&
pjsua_var.ua_cfg.nat_type_in_sdp)
{
pjsua_detect_nat_type();
}
}
if (pjsua_var.ua_cfg.cb.on_stun_resolution_complete)
(*pjsua_var.ua_cfg.cb.on_stun_resolution_complete)(result);
}
/*
* Resolve STUN server.
*/
pj_status_t resolve_stun_server(pj_bool_t wait, pj_bool_t retry_if_cur_error,
unsigned options)
{
pjsua_var.stun_opt = options;
/* Retry resolving if currently the STUN status is error */
if (pjsua_var.stun_status != PJ_EPENDING &&
pjsua_var.stun_status != PJ_SUCCESS &&
retry_if_cur_error)
{
pjsua_var.stun_status = PJ_EUNKNOWN;
}
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) {
unsigned max_wait_ms;
pj_timestamp start, now;
/* Should limit the wait time to avoid deadlock. For example,
* if app holds dlg/tsx lock, pjsua worker thread will block on
* any dlg/tsx state change.
*/
max_wait_ms = pjsua_var.ua_cfg.stun_srv_cnt *
pjsua_var.stun_cfg.rto_msec * (1 << 7);
pj_get_timestamp(&start);
while (pjsua_var.stun_status == PJ_EPENDING) {
/* If there is no worker thread or
* the function is called from the only worker thread,
* we have to handle the events here.
*/
if (pjsua_var.thread[0] == NULL ||
(pj_thread_this() == pjsua_var.thread[0] &&
pjsua_var.ua_cfg.thread_cnt == 1))
{
pjsua_handle_events(10);
} else {
pj_thread_sleep(10);
}
pj_get_timestamp(&now);
if (pj_elapsed_msec(&start, &now) > max_wait_ms)
return PJ_ETIMEDOUT;
}
}
}
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 PJ_SUCCESS;
}
return pjsua_var.stun_status;
}
/*
* Destroy pjsua.
*/
PJ_DEF(pj_status_t) pjsua_destroy2(unsigned flags)
{
int i; /* Must be signed */
if (pjsua_var.endpt) {
PJ_LOG(4,(THIS_FILE, "Shutting down, flags=%d...", flags));
}
if (pjsua_var.state > PJSUA_STATE_NULL &&
pjsua_var.state < PJSUA_STATE_CLOSING)
{
pjsua_set_state(PJSUA_STATE_CLOSING);
}
/* Signal threads to quit: */
pjsua_stop_worker_threads();
if (pjsua_var.endpt) {
unsigned max_wait;
pj_log_push_indent();
/* Terminate all calls. */
if ((flags & PJSUA_DESTROY_NO_TX_MSG) == 0) {
pjsua_call_hangup_all();
} else {
/* Deinit media channel of all calls (see #1717) */
for (i=0; i<(int)pjsua_var.ua_cfg.max_calls; ++i) {
/* TODO: check if we're not allowed to send to network in the
* "flags", and if so do not do TURN allocation...
*/
pjsua_media_channel_deinit(i);
}
}
/* 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(flags);
/* 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;
}
/* No waiting if RX is disabled */
if (flags & PJSUA_DESTROY_NO_RX_MSG) {
max_wait = 0;
}
/* 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 && (flags & PJSUA_DESTROY_NO_TX_MSG)==0)
{
pjsua_acc_set_registration(i, PJ_FALSE);
}
#if PJ_HAS_SSL_SOCK
pj_turn_sock_tls_cfg_wipe_keys(
&pjsua_var.acc[i].cfg.turn_cfg.turn_tls_setting);
#endif
}
/* 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;
}
/* No waiting if RX is disabled */
if (flags & PJSUA_DESTROY_NO_RX_MSG) {
max_wait = 0;
}
/* 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 && (flags & PJSUA_DESTROY_NO_RX_MSG) == 0) {
busy_sleep(1000 - i*50);
}
PJ_LOG(4,(THIS_FILE, "Destroying..."));
/* 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, PJ_TRUE);
sess = next;
}
}
/* Close pjsua transports */
for (i = 0; i < (int)PJ_ARRAY_SIZE(pjsua_var.tpdata); i++) {
if (pjsua_var.tpdata[i].data.ptr) {
pjsip_transport_type_e tp_type;
tp_type = pjsua_var.tpdata[i].type & ~PJSIP_TRANSPORT_IPV6;
if ((flags & PJSUA_DESTROY_NO_TX_MSG) &&
tp_type == PJSIP_TRANSPORT_UDP &&
pjsua_var.ua_cfg.enable_upnp &&
pjsua_var.upnp_status == PJ_SUCCESS)
{
/* If we are not supposed to send any outgoing message
* at all, avoid sending UPnP message as it may take
* a while to time out.
*/
continue;
}
pjsua_transport_close(i, PJ_FALSE);
}
}
/* Destroy media (to shutdown media endpoint, etc) */
pjsua_media_subsys_destroy(flags);
/* 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;
}
}
}
#if defined(PJNATH_HAS_UPNP) && (PJNATH_HAS_UPNP != 0)
/* Deinitialize UPnP */
if (pjsua_var.ua_cfg.enable_upnp) {
pj_upnp_deinit();
}
#endif
/* Destroy mutex */
if (pjsua_var.mutex) {
pj_mutex_destroy(pjsua_var.mutex);
pjsua_var.mutex = NULL;
}
if (pjsua_var.timer_mutex) {
pj_mutex_destroy(pjsua_var.timer_mutex);
pjsua_var.timer_mutex = NULL;
}
/* Destroy pools and pool factory. */
if (pjsua_var.timer_pool) {
pj_pool_release(pjsua_var.timer_pool);
pjsua_var.timer_pool = NULL;
}
if (pjsua_var.pool) {
pj_pool_release(pjsua_var.pool);
pjsua_var.pool = NULL;
pj_caching_pool_destroy(&pjsua_var.cp);
pjsua_set_state(PJSUA_STATE_NULL);
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;
}
pj_log_pop_indent();
/* Shutdown PJLIB */
pj_shutdown();
}
/* Clear pjsua_var */
pj_bzero(&pjsua_var, sizeof(pjsua_var));
/* Done. */
return PJ_SUCCESS;
}
void pjsua_set_state(pjsua_state new_state)
{
const char *state_name[] = {
"NULL",
"CREATED",
"INIT",
"STARTING",
"RUNNING",
"CLOSING"
};
pjsua_state old_state = pjsua_var.state;
pjsua_var.state = new_state;
PJ_LOG(4,(THIS_FILE, "PJSUA state changed: %s --> %s",
state_name[old_state], state_name[new_state]));
}
/* Get state */
PJ_DEF(pjsua_state) pjsua_get_state(void)
{
return pjsua_var.state;
}
PJ_DEF(pj_status_t) pjsua_destroy(void)
{
return pjsua_destroy2(0);
}
/**
* 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;
pjsua_set_state(PJSUA_STATE_STARTING);
pj_log_push_indent();
status = pjsua_call_subsys_start();
if (status != PJ_SUCCESS)
goto on_return;
status = pjsua_media_subsys_start();
if (status != PJ_SUCCESS)
goto on_return;
status = pjsua_pres_start();
if (status != PJ_SUCCESS)
goto on_return;
pjsua_set_state(PJSUA_STATE_RUNNING);
on_return:
pj_log_pop_indent();
return status;
}
/**
* 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);
}
/* Set transport state callback */
static void set_tp_state_cb()
{
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);
}
}
/*
* 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, PJ_TRUE, 0);
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() | pj_SOCK_CLOEXEC(), 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");
/* Apply sockopt, if specified */
if (cfg->sockopt_params.cnt) {
status = pj_sock_setsockopt_params(sock, &cfg->sockopt_params);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "setsockopt) error", status);
}
}
/* 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_sockaddr_print(&pjsua_var.stun_srv,
stun_ip_addr, sizeof(stun_ip_addr), 0);
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.
*/
status = PJ_SUCCESS;
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 &&
(af == pj_AF_INET() || pjsua_var.ua_cfg.stun_try_ipv6))
{
pjstun_setting stun_opt;
/*
* STUN is specified, resolve the address with STUN.
* Currently, this is only to get IPv4 mapped address
* (does IPv6 still need a mapped address?).
*/
pj_bzero(&stun_opt, sizeof(stun_opt));
stun_opt.use_stun2 = pjsua_var.ua_cfg.stun_map_use_stun2;
stun_opt.af = pjsua_var.stun_srv.addr.sa_family;
stun_opt.srv1 = stun_opt.srv2 = stun_srv;
stun_opt.port1 = stun_opt.port2 =
pj_sockaddr_get_port(&pjsua_var.stun_srv);
status = pjstun_get_mapped_addr2(&pjsua_var.cp.factory, &stun_opt,
1, &sock, &p_pub_addr->ipv4);
if (status != PJ_SUCCESS) {
/* Failed getting mapped address via STUN */
pjsua_perror(THIS_FILE, "Error contacting STUN server", status);
/* Return error if configured to not ignore STUN failure */
if (!pjsua_var.ua_cfg.stun_ignore_failure) {
pj_sock_close(sock);
return status;
}
}
}
#if defined(PJNATH_HAS_UPNP) && (PJNATH_HAS_UPNP != 0)
else if (pjsua_var.ua_cfg.enable_upnp &&
pjsua_var.upnp_status == PJ_SUCCESS)
{
status = pj_upnp_add_port_mapping(1, &sock, NULL, p_pub_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error adding UPnP port mapping", status);
}
}
#endif
if (!pj_sockaddr_has_addr(p_pub_addr)) {
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);
if (stun_srv.slen && af != pj_AF_INET()) {
/* STUN is specified, but it is not IPv4, just print warning */
PJ_PERROR(2, (THIS_FILE, PJ_EAFNOTSUP,
"Cannot use STUN for SIP UDP socket %s:%d",
addr_string(p_pub_addr),
(int)pj_sockaddr_get_port(p_pub_addr)));
}
}
*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_strxcpy(hostbuf, addr_string(&pub_addr), sizeof(hostbuf));
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;
pj_sockaddr_cp(&pjsua_var.tpdata[id].pub_addr, &pub_addr);
if (cfg->bound_addr.slen || cfg->public_addr.slen)
pjsua_var.tpdata[id].has_cfg_addr = PJ_TRUE;
#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;
int af;
af = (type==PJSIP_TRANSPORT_TCP6) ? pj_AF_INET6() : pj_AF_INET();
pjsip_tcp_transport_cfg_default(&tcp_cfg, af);
/* 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));
/* Copy the sockopt */
pj_memcpy(&tcp_cfg.sockopt_params, &cfg->sockopt_params,
sizeof(tcp_cfg.sockopt_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 || type == PJSIP_TRANSPORT_TLS6) {
/*
* Create TLS transport.
*/
pjsua_transport_config config;
pjsip_host_port a_name;
pjsip_tpfactory *tls;
pj_sockaddr local_addr;
int af;
/* Supply default config if it's not specified */
if (cfg == NULL) {
pjsua_transport_config_default(&config);
config.port = 5061;
cfg = &config;
}
/* Init local address */
af = (type==PJSIP_TRANSPORT_TLS) ? pj_AF_INET() : pj_AF_INET6();
pj_sockaddr_init(af, &local_addr, NULL, 0);
if (cfg->port)
pj_sockaddr_set_port(&local_addr, (pj_uint16_t)cfg->port);
if (cfg->bound_addr.slen) {
status = pj_sockaddr_set_str_addr(af, &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_start2(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 */
set_tp_state_cb();
/* 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;
/* Set transport state callback */
set_tp_state_cb();
/* Return the ID */
if (p_id) *p_id = id;
PJSUA_UNLOCK();
return PJ_SUCCESS;
}
/*
* Register transport factory that has been created by application.
*/
PJ_DEF(pj_status_t) pjsua_tpfactory_register( pjsip_tpfactory *tf,
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) tf->type;
pjsua_var.tpdata[id].local_name = tf->addr_name;
pjsua_var.tpdata[id].data.factory = tf;
/* Set transport state callback */
set_tp_state_cb();
/* 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 ((t->type & ~PJSIP_TRANSPORT_IPV6) == 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 ((t->type & ~PJSIP_TRANSPORT_IPV6) == PJSIP_TRANSPORT_TCP ||
(t->type & ~PJSIP_TRANSPORT_IPV6) == PJSIP_TRANSPORT_TLS)
{
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(factory->type_name);
info->info = pj_str(factory->info);
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;
pjsip_transport_type_e tp_type;
/* 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);
tp_type = pjsua_var.tpdata[id].type & ~PJSIP_TRANSPORT_IPV6;
if (force) {
/* Forcefully closing transport is deprecated, since any pending
* transactions that are using the transport may not terminate
* properly and can even crash.
*/
PJ_LOG(1, (THIS_FILE, "pjsua_transport_close(force=PJ_TRUE) is "
"deprecated."));
/* To minimize the effect to users, we shouldn't hard-deprecate this
* and let it continue as if force is false.
*/
// return PJ_EINVAL;
}
/* If force is not specified, transports will be closed at their
* convenient time.
*/
switch (tp_type) {
case PJSIP_TRANSPORT_UDP:
#if defined(PJNATH_HAS_UPNP) && (PJNATH_HAS_UPNP != 0)
if (pjsua_var.ua_cfg.enable_upnp &&
pjsua_var.upnp_status == PJ_SUCCESS)
{
status = pj_upnp_del_port_mapping(
&pjsua_var.tpdata[id].pub_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error deleting pjsua_transport "
"UPnP port mapping", status);
}
}
#endif
status = pjsip_transport_shutdown(pjsua_var.tpdata[id].data.tp);
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);
break;
default:
return PJ_EINVAL;
}
/* Cleanup pjsua data. We don't need to keep the transport
* descriptor, the transport will be destroyed later by the last user
* which decrements the transport's reference.
*/
if (status == PJ_SUCCESS) {
pjsua_var.tpdata[id].type = PJSIP_TRANSPORT_UNSPECIFIED;
pjsua_var.tpdata[id].data.ptr = NULL;
}
return status;
}
PJ_DEF(pj_status_t) pjsua_transport_lis_start(pjsua_transport_id id,
const pjsua_transport_config *cfg)
{
pj_status_t status = PJ_SUCCESS;
pjsip_transport_type_e tp_type;
/* 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);
tp_type = pjsua_var.tpdata[id].type & ~PJSIP_TRANSPORT_IPV6;
if ((tp_type == PJSIP_TRANSPORT_TLS) || (tp_type == PJSIP_TRANSPORT_TCP)) {
pj_sockaddr bind_addr;
pjsip_host_port addr_name;
pjsip_tpfactory *factory = pjsua_var.tpdata[id].data.factory;
int af = pjsip_transport_type_get_af(factory->type);
if (cfg->port)
pj_sockaddr_init(af, &bind_addr, NULL, (pj_uint16_t)cfg->port);
if (cfg->bound_addr.slen) {
status = pj_sockaddr_set_str_addr(af,
&bind_addr,
&cfg->bound_addr);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Unable to resolve transport bound address",
status);
return status;
}
}
/* Set published name */
pj_bzero(&addr_name, sizeof(pjsip_host_port));
if (cfg->public_addr.slen)
addr_name.host = cfg->public_addr;
if (tp_type == PJSIP_TRANSPORT_TCP) {
status = pjsip_tcp_transport_lis_start(factory, &bind_addr,
&addr_name);
}
#if defined(PJSIP_HAS_TLS_TRANSPORT) && PJSIP_HAS_TLS_TRANSPORT!=0
else {
status = pjsip_tls_transport_lis_start(factory, &bind_addr,
&addr_name);
}
#endif
} else if (tp_type == PJSIP_TRANSPORT_UDP) {
status = PJ_SUCCESS;
} else {
status = PJ_EINVAL;
}
return status;
}
/*
* 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 based on account's config.
*/
void pjsua_init_tpselector(pjsua_acc_id acc_id,
pjsip_tpselector *sel)
{
pjsua_acc *acc = &pjsua_var.acc[acc_id];
pj_bzero(sel, sizeof(*sel));
if (acc->cfg.transport_id != PJSUA_INVALID_ID) {
pjsua_transport_data *tpdata;
unsigned flag;
PJ_ASSERT_RETURN(acc->cfg.transport_id >= 0 &&
acc->cfg.transport_id <
(int)PJ_ARRAY_SIZE(pjsua_var.tpdata), );
tpdata = &pjsua_var.tpdata[acc->cfg.transport_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;
}
} else if (acc->cfg.ipv6_sip_use != PJSUA_IPV6_ENABLED_NO_PREFERENCE) {
sel->type = PJSIP_TPSELECTOR_IP_VER;
sel->u.ip_ver = (pjsip_tpselector_ip_ver)acc->cfg.ipv6_sip_use;
}
}
PJ_DEF(void) pjsua_ip_change_param_default(pjsua_ip_change_param *param)
{
pj_bzero(param, sizeof(*param));
param->restart_listener = PJ_TRUE;
param->restart_lis_delay = PJSUA_TRANSPORT_RESTART_DELAY_TIME;
param->shutdown_transport = PJ_TRUE;
}
/* 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, PJ_TRUE, 0);
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.addr.sa_family == 0) {
pjsua_var.nat_status = PJNATH_ESTUNINSERVER;
return PJNATH_ESTUNINSERVER;
}
status = pj_stun_detect_nat_type2(&pjsua_var.stun_srv,
&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 url is given.
*/
PJ_DEF(pj_status_t) pjsua_verify_url(const char *c_url)
{
pjsip_uri *p;
pj_pool_t *pool;
char *url;
pj_size_t len = (c_url ? pj_ansi_strlen(c_url) : 0);
if (!len) return PJSIP_EINVALIDURI;
pool = pj_pool_create(&pjsua_var.cp.factory, "check%p", 1024, 0, NULL);
if (!pool) return PJ_ENOMEM;
url = (char*) pj_pool_alloc(pool, len+1);
pj_ansi_strxcpy(url, c_url, len+1);
p = pjsip_parse_uri(pool, url, len, 0);
pj_pool_release(pool);
return p ? 0 : PJSIP_EINVALIDURI;
}
/*
* 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;
pj_size_t len = (c_url ? pj_ansi_strlen(c_url) : 0);
if (!len) return PJSIP_EINVALIDURI;
pool = pj_pool_create(&pjsua_var.cp.factory, "check%p", 1024, 0, NULL);
if (!pool) return PJ_ENOMEM;
url = (char*) pj_pool_calloc(pool, 1, len+1);
pj_ansi_strxcpy(url, c_url, len+1);
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 : PJSIP_EINVALIDURI;
}
/*
* Schedule a timer entry.
*/
#if PJ_TIMER_DEBUG
PJ_DEF(pj_status_t) pjsua_schedule_timer_dbg( pj_timer_entry *entry,
const pj_time_val *delay,
const char *src_file,
int src_line)
{
return pjsip_endpt_schedule_timer_dbg(pjsua_var.endpt, entry, delay,
src_file, src_line);
}
#else
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);
}
#endif
/* Timer callback */
static void timer_cb( pj_timer_heap_t *th,
pj_timer_entry *entry)
{
pjsua_timer_list *tmr = (pjsua_timer_list *)entry->user_data;
void (*cb)(void *user_data) = tmr->cb;
void *user_data = tmr->user_data;
PJ_UNUSED_ARG(th);
if (cb)
(*cb)(user_data);
pj_mutex_lock(pjsua_var.timer_mutex);
pj_list_erase(tmr);
pj_list_push_back(&pjsua_var.timer_list, tmr);
pj_mutex_unlock(pjsua_var.timer_mutex);
}
/*
* Schedule a timer callback.
*/
#if PJ_TIMER_DEBUG
PJ_DEF(pj_status_t) pjsua_schedule_timer2_dbg( void (*cb)(void *user_data),
void *user_data,
unsigned msec_delay,
const char *src_file,
int src_line)
#else
PJ_DEF(pj_status_t) pjsua_schedule_timer2( void (*cb)(void *user_data),
void *user_data,
unsigned msec_delay)
#endif
{
pjsua_timer_list *tmr = NULL;
pj_status_t status;
pj_time_val delay;
pj_mutex_lock(pjsua_var.timer_mutex);
if (pj_list_empty(&pjsua_var.timer_list)) {
tmr = PJ_POOL_ALLOC_T(pjsua_var.timer_pool, pjsua_timer_list);
} else {
tmr = pjsua_var.timer_list.next;
pj_list_erase(tmr);
}
pj_timer_entry_init(&tmr->entry, 0, tmr, timer_cb);
tmr->cb = cb;
tmr->user_data = user_data;
delay.sec = 0;
delay.msec = msec_delay;
#if PJ_TIMER_DEBUG
status = pjsip_endpt_schedule_timer_dbg(pjsua_var.endpt, &tmr->entry,
&delay, src_file, src_line);
#else
status = pjsip_endpt_schedule_timer(pjsua_var.endpt, &tmr->entry, &delay);
#endif
if (status == PJ_SUCCESS) {
pj_list_push_back(&pjsua_var.active_timer_list, tmr);
} else {
pj_list_push_back(&pjsua_var.timer_list, tmr);
}
pj_mutex_unlock(pjsua_var.timer_mutex);
return status;
}
/*
* 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_SIPS(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_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];
pjsua_acc_config *acc_cfg;
pjmedia_transport *tp[PJSUA_MAX_CALL_MEDIA*2];
unsigned tp_cnt = 0;
unsigned j;
/* Collect media transports in this call */
for (j = 0; j < call->med_cnt; ++j) {
if (call->media[j].tp != NULL)
tp[tp_cnt++] = call->media[j].tp;
}
for (j = 0; j < call->med_prov_cnt; ++j) {
pjmedia_transport *med_tp = call->media_prov[j].tp;
if (med_tp) {
unsigned k;
pj_bool_t used = PJ_FALSE;
for (k = 0; k < tp_cnt; ++k) {
if (med_tp == tp[k]) {
used = PJ_TRUE;
break;
}
}
if (!used)
tp[tp_cnt++] = med_tp;
}
}
acc_cfg = &pjsua_var.acc[call->acc_id].cfg;
/* Dump the media transports in this call */
for (j = 0; j < tp_cnt; ++j) {
pjmedia_transport_info tpinfo;
char addr_buf[80];
pjmedia_transport_info_init(&tpinfo);
pjmedia_transport_get_info(tp[j], &tpinfo);
PJ_LOG(3,(THIS_FILE, " %s: %s",
(acc_cfg->ice_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"));
}
/* Forward declaration. */
static void restart_listener_cb(void *user_data);
static pj_status_t handle_ip_change_on_acc()
{
int i = 0;
pj_status_t status = PJ_SUCCESS;
pj_bool_t acc_done[PJSUA_MAX_ACC];
PJSUA_LOCK();
if (pjsua_var.acc_cnt == 0) {
PJ_LOG(3, (THIS_FILE,
"No account is set, IP change handling will stop"));
pjsua_acc_end_ip_change(NULL);
PJSUA_UNLOCK();
return status;
}
/* Reset ip_change_active flag. */
for (; i < (int)PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
pjsua_var.acc[i].ip_change_op = PJSUA_IP_CHANGE_OP_NULL;
acc_done[i] = PJ_FALSE;
}
for (i = 0; i < (int)PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
pj_bool_t shutdown_transport = PJ_FALSE;
pjsip_regc_info regc_info;
char acc_id[PJSUA_MAX_ACC * 4];
pjsua_acc *acc = &pjsua_var.acc[i];
pjsip_transport *transport = NULL;
pjsua_acc_id shut_acc_ids[PJSUA_MAX_ACC];
unsigned shut_acc_cnt = 0;
if (!acc->valid || (acc_done[i]))
continue;
if (acc->regc) {
unsigned j = 0;
pj_status_t found_restart_tp_fail = PJ_FALSE;
pjsip_regc_get_info(acc->regc, &regc_info);
/* Check if transport restart listener succeed. */
for (; j < PJ_ARRAY_SIZE(pjsua_var.tpdata); ++j) {
if (pjsua_var.tpdata[j].data.ptr != NULL &&
pjsua_var.tpdata[j].restart_status != PJ_SUCCESS &&
pjsua_var.tpdata[j].type == regc_info.transport->key.type)
{
if ((pjsua_var.tpdata[j].data.factory
== regc_info.transport->factory) ||
(pjsua_var.tpdata[j].data.tp
== regc_info.transport))
{
found_restart_tp_fail = PJ_TRUE;
break;
}
}
}
if (found_restart_tp_fail) {
if (acc->ka_timer.id) {
pjsip_endpt_cancel_timer(pjsua_var.endpt, &acc->ka_timer);
acc->ka_timer.id = PJ_FALSE;
if (acc->ka_transport) {
pjsip_transport_dec_ref(acc->ka_transport);
acc->ka_transport = NULL;
}
}
pjsua_acc_end_ip_change(acc);
continue;
}
if ((regc_info.transport) &&
((regc_info.transport->flag & PJSIP_TRANSPORT_DATAGRAM) == 0))
{
transport = regc_info.transport;
shutdown_transport = acc->cfg.ip_change_cfg.shutdown_tp;
shut_acc_ids[shut_acc_cnt++] = acc->index;
}
} else if (acc->cfg.reg_uri.slen &&
acc->reg_last_code != PJSIP_SC_OK &&
acc->reg_last_code != PJSIP_SC_REQUEST_TIMEOUT &&
acc->reg_last_code != PJSIP_SC_INTERNAL_SERVER_ERROR &&
acc->reg_last_code != PJSIP_SC_BAD_GATEWAY &&
acc->reg_last_code != PJSIP_SC_SERVICE_UNAVAILABLE &&
acc->reg_last_code != PJSIP_SC_SERVER_TIMEOUT &&
acc->reg_last_code != PJSIP_SC_TEMPORARILY_UNAVAILABLE)
{
PJ_LOG(3, (THIS_FILE, "Permanent registration failure, "
"IP change handling will stop for acc %d", acc->index));
pjsua_acc_end_ip_change(acc);
continue;
}
pj_ansi_snprintf(acc_id, sizeof(acc_id), "#%d", i);
if (transport) {
int j = i + 1;
/* Find other account that uses the same transport. */
for (; j < (int)PJ_ARRAY_SIZE(pjsua_var.acc); ++j) {
pjsip_regc_info tmp_regc_info;
pjsua_acc *next_acc = &pjsua_var.acc[j];
if (!next_acc->valid || !next_acc->regc ||
(next_acc->ip_change_op > PJSUA_IP_CHANGE_OP_NULL))
{
continue;
}
pjsip_regc_get_info(next_acc->regc, &tmp_regc_info);
if (transport == tmp_regc_info.transport) {
char tmp_buf[32];
pj_ansi_snprintf(tmp_buf, sizeof(tmp_buf), " #%d", j);
if (pj_ansi_strlen(acc_id) + pj_ansi_strlen(tmp_buf) <
sizeof(acc_id))
{
pj_ansi_strxcat(acc_id, tmp_buf, sizeof(acc_id));
}
shut_acc_ids[shut_acc_cnt++] = j;
if (!shutdown_transport) {
shutdown_transport =
next_acc->cfg.ip_change_cfg.shutdown_tp;
}
}
}
}
if (shutdown_transport) {
unsigned j;
/* Shutdown the transport. */
PJ_LOG(3, (THIS_FILE, "Shutdown transport %s used by account %s "
"triggered by IP change", transport->obj_name, acc_id));
for (j = 0; j < shut_acc_cnt; ++j) {
pjsua_acc *tmp_acc = &pjsua_var.acc[shut_acc_ids[j]];
tmp_acc->ip_change_op = PJSUA_IP_CHANGE_OP_ACC_SHUTDOWN_TP;
acc_done[shut_acc_ids[j]] = PJ_TRUE;
}
status = pjsip_transport_shutdown2(transport, PJ_TRUE);
} else {
acc_done[i] = PJ_TRUE;
if (acc->cfg.allow_contact_rewrite && acc->cfg.reg_uri.slen) {
status = pjsua_acc_update_contact_on_ip_change(acc);
} else {
status = pjsua_acc_handle_call_on_ip_change(acc);
}
}
}
PJSUA_UNLOCK();
return status;
}
static pj_status_t restart_listener(pjsua_transport_id id,
unsigned restart_lis_delay)
{
pj_sockaddr bind_addr;
pjsua_transport_info tp_info;
pj_status_t status;
pjsua_transport_get_info(id, &tp_info);
pj_sockaddr_init(pjsip_transport_type_get_af(tp_info.type),
&bind_addr,
NULL,
pj_sockaddr_get_port(&tp_info.local_addr));
switch (tp_info.type) {
case PJSIP_TRANSPORT_UDP:
case PJSIP_TRANSPORT_UDP6:
{
unsigned num_locks = 0;
/* Release locks before restarting the transport, to avoid deadlock. */
num_locks = PJSUA_RELEASE_LOCK();
status = pjsip_udp_transport_restart2(
pjsua_var.tpdata[id].data.tp,
PJSIP_UDP_TRANSPORT_DESTROY_SOCKET,
PJ_INVALID_SOCKET,
&bind_addr,
NULL);
/* Re-acquire the locks. */
for (;num_locks > 0; num_locks--)
PJSUA_LOCK();
}
break;
#if defined(PJSIP_HAS_TLS_TRANSPORT) && PJSIP_HAS_TLS_TRANSPORT!=0
case PJSIP_TRANSPORT_TLS:
case PJSIP_TRANSPORT_TLS6:
status = pjsip_tls_transport_restart(
pjsua_var.tpdata[id].data.factory,
&bind_addr,
NULL);
break;
#endif
case PJSIP_TRANSPORT_TCP:
case PJSIP_TRANSPORT_TCP6:
status = pjsip_tcp_transport_restart(
pjsua_var.tpdata[id].data.factory,
&bind_addr,
NULL);
break;
default:
status = PJ_EINVAL;
}
PJ_PERROR(3,(THIS_FILE, status, "Listener %.*s restart",
(int)tp_info.info.slen, tp_info.info.ptr));
if (status != PJ_SUCCESS && (restart_lis_delay > 0)) {
/* Try restarting again, with delay. */
pjsua_schedule_timer2(&restart_listener_cb,
(void*)(pj_size_t)id,
restart_lis_delay);
PJ_LOG(3,(THIS_FILE, "Retry listener %.*s restart in %d ms",
(int)tp_info.info.slen, tp_info.info.ptr, restart_lis_delay));
status = PJ_SUCCESS;
} else {
int i = 0;
pj_bool_t all_done = PJ_TRUE;
pjsua_var.tpdata[id].is_restarting = PJ_FALSE;
pjsua_var.tpdata[id].restart_status = status;
if (pjsua_var.ua_cfg.cb.on_ip_change_progress) {
pjsua_ip_change_op_info info;
pj_bzero(&info, sizeof(info));
info.lis_restart.transport_id = id;
pjsua_var.ua_cfg.cb.on_ip_change_progress(
PJSUA_IP_CHANGE_OP_RESTART_LIS,
status,
&info);
}
/* Move forward if all listener has been restarted. */
for (; i < (int)PJ_ARRAY_SIZE(pjsua_var.tpdata); ++i) {
if (pjsua_var.tpdata[i].data.ptr != NULL &&
pjsua_var.tpdata[i].is_restarting)
{
all_done = PJ_FALSE;
break;
}
}
if (all_done)
status = handle_ip_change_on_acc();
}
return status;
}
static void restart_listener_cb(void *user_data)
{
pjsua_transport_id transport_id = (pjsua_transport_id)(pj_size_t)user_data;
restart_listener(transport_id, 0);
}
static void ip_change_put_back_inv_config(void *user_data)
{
PJ_UNUSED_ARG(user_data);
PJ_LOG(4,(THIS_FILE,"IP change stops ignoring request timeout"));
pjsip_cfg()->endpt.keep_inv_after_tsx_timeout = PJ_FALSE;
}
PJ_DEF(pj_status_t) pjsua_handle_ip_change(const pjsua_ip_change_param *param)
{
pj_status_t status = PJ_SUCCESS;
int i = 0;
PJ_ASSERT_RETURN(param, PJ_EINVAL);
for (; i < (int)PJ_ARRAY_SIZE(pjsua_var.acc); ++i) {
if (pjsua_var.acc[i].valid &&
pjsua_var.acc[i].ip_change_op != PJSUA_IP_CHANGE_OP_NULL &&
pjsua_var.acc[i].ip_change_op != PJSUA_IP_CHANGE_OP_COMPLETED)
{
PJ_LOG(2, (THIS_FILE,
"Previous IP address change handling still in progress"));
}
}
PJ_LOG(3, (THIS_FILE, "Start handling IP address change"));
/* Avoid call disconnection due to request timeout. Some requests may
* be in progress when network is changing, they may eventually get
* timed out and cause call disconnection.
*/
if (!pjsip_cfg()->endpt.keep_inv_after_tsx_timeout) {
pjsip_cfg()->endpt.keep_inv_after_tsx_timeout = PJ_TRUE;
/* Put it back after some time (transaction timeout setting value) */
pjsua_schedule_timer2(&ip_change_put_back_inv_config, NULL,
pjsip_cfg()->tsx.td);
PJ_LOG(4,(THIS_FILE,"IP change temporarily ignores request timeout"));
}
/* Shutdown all TCP/TLS transports */
if (param->shutdown_transport) {
pjsip_tpmgr_shutdown_param param;
pjsip_tpmgr_shutdown_param_default(&param);
param.include_udp = PJ_FALSE;
PJ_LOG(4,(THIS_FILE, "IP change shutting down transports.."));
status = pjsip_tpmgr_shutdown_all(
pjsip_endpt_get_tpmgr(pjsua_var.endpt),
&param);
/* Provide dummy info instead of NULL info to avoid possible crash
* (if app does not check).
*/
if (pjsua_var.ua_cfg.cb.on_ip_change_progress) {
pjsua_ip_change_op_info info;
pj_bzero(&info, sizeof(info));
pjsua_var.ua_cfg.cb.on_ip_change_progress(
PJSUA_IP_CHANGE_OP_SHUTDOWN_TP,
status, &info);
}
}
if (param->restart_listener) {
PJSUA_LOCK();
/* Restart listener/transport, handle_ip_change_on_acc() will
* be called after listener restart is completed successfully.
*/
for (i = 0; i < (int)PJ_ARRAY_SIZE(pjsua_var.tpdata); ++i) {
if (pjsua_var.tpdata[i].data.ptr != NULL) {
pjsua_var.tpdata[i].is_restarting = PJ_TRUE;
pjsua_var.tpdata[i].restart_status = PJ_EUNKNOWN;
}
}
for (i = 0; i < (int)PJ_ARRAY_SIZE(pjsua_var.tpdata); ++i) {
if (pjsua_var.tpdata[i].data.ptr != NULL) {
status = restart_listener(i, param->restart_lis_delay);
}
}
PJSUA_UNLOCK();
} else {
for (i = 0; i < (int)PJ_ARRAY_SIZE(pjsua_var.tpdata); ++i) {
if (pjsua_var.tpdata[i].data.ptr != NULL) {
pjsua_var.tpdata[i].restart_status = PJ_SUCCESS;
}
}
status = handle_ip_change_on_acc();
}
return status;
}
Reference in New Issue View Git Blame Copy Permalink