/* $Id$ */ /* * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) * Copyright (C) 2003-2008 Benny Prijono * * 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 #include #include #include #include #include #include #include enum { TIMER_NONE, TIMER_DESTROY }; enum { MAX_BIND_RETRY = 100 }; #define INIT 0x1FFFFFFF struct pj_turn_sock { pj_pool_t *pool; const char *obj_name; pj_turn_session *sess; pj_turn_sock_cb cb; void *user_data; pj_bool_t is_destroying; pj_grp_lock_t *grp_lock; pj_turn_alloc_param alloc_param; pj_stun_config cfg; pj_turn_sock_cfg setting; pj_timer_entry timer; int af; pj_turn_tp_type conn_type; pj_activesock_t *active_sock; pj_ioqueue_op_key_t send_key; }; /* * Callback prototypes. */ static pj_status_t turn_on_send_pkt(pj_turn_session *sess, const pj_uint8_t *pkt, unsigned pkt_len, const pj_sockaddr_t *dst_addr, unsigned dst_addr_len); static void turn_on_channel_bound(pj_turn_session *sess, const pj_sockaddr_t *peer_addr, unsigned addr_len, unsigned ch_num); static void turn_on_rx_data(pj_turn_session *sess, void *pkt, unsigned pkt_len, const pj_sockaddr_t *peer_addr, unsigned addr_len); static void turn_on_state(pj_turn_session *sess, pj_turn_state_t old_state, pj_turn_state_t new_state); static pj_bool_t on_data_read(pj_activesock_t *asock, void *data, pj_size_t size, pj_status_t status, pj_size_t *remainder); static pj_bool_t on_connect_complete(pj_activesock_t *asock, pj_status_t status); static void turn_sock_on_destroy(void *comp); static void destroy(pj_turn_sock *turn_sock); static void timer_cb(pj_timer_heap_t *th, pj_timer_entry *e); /* Init config */ PJ_DEF(void) pj_turn_sock_cfg_default(pj_turn_sock_cfg *cfg) { pj_bzero(cfg, sizeof(*cfg)); cfg->max_pkt_size = PJ_TURN_MAX_PKT_LEN; cfg->qos_type = PJ_QOS_TYPE_BEST_EFFORT; cfg->qos_ignore_error = PJ_TRUE; } /* * Create. */ PJ_DEF(pj_status_t) pj_turn_sock_create(pj_stun_config *cfg, int af, pj_turn_tp_type conn_type, const pj_turn_sock_cb *cb, const pj_turn_sock_cfg *setting, void *user_data, pj_turn_sock **p_turn_sock) { pj_turn_sock *turn_sock; pj_turn_session_cb sess_cb; pj_turn_sock_cfg default_setting; pj_pool_t *pool; const char *name_tmpl; pj_status_t status; PJ_ASSERT_RETURN(cfg && p_turn_sock, PJ_EINVAL); PJ_ASSERT_RETURN(af==pj_AF_INET() || af==pj_AF_INET6(), PJ_EINVAL); PJ_ASSERT_RETURN(conn_type!=PJ_TURN_TP_TCP || PJ_HAS_TCP, PJ_EINVAL); if (!setting) { pj_turn_sock_cfg_default(&default_setting); setting = &default_setting; } switch (conn_type) { case PJ_TURN_TP_UDP: name_tmpl = "udprel%p"; break; case PJ_TURN_TP_TCP: name_tmpl = "tcprel%p"; break; default: PJ_ASSERT_RETURN(!"Invalid TURN conn_type", PJ_EINVAL); name_tmpl = "tcprel%p"; break; } /* Create and init basic data structure */ pool = pj_pool_create(cfg->pf, name_tmpl, PJNATH_POOL_LEN_TURN_SOCK, PJNATH_POOL_INC_TURN_SOCK, NULL); turn_sock = PJ_POOL_ZALLOC_T(pool, pj_turn_sock); turn_sock->pool = pool; turn_sock->obj_name = pool->obj_name; turn_sock->user_data = user_data; turn_sock->af = af; turn_sock->conn_type = conn_type; /* Copy STUN config (this contains ioqueue, timer heap, etc.) */ pj_memcpy(&turn_sock->cfg, cfg, sizeof(*cfg)); /* Copy setting (QoS parameters etc */ pj_memcpy(&turn_sock->setting, setting, sizeof(*setting)); /* Set callback */ if (cb) { pj_memcpy(&turn_sock->cb, cb, sizeof(*cb)); } /* Session lock */ if (setting && setting->grp_lock) { turn_sock->grp_lock = setting->grp_lock; } else { status = pj_grp_lock_create(pool, NULL, &turn_sock->grp_lock); if (status != PJ_SUCCESS) { pj_pool_release(pool); return status; } } pj_grp_lock_add_ref(turn_sock->grp_lock); pj_grp_lock_add_handler(turn_sock->grp_lock, pool, turn_sock, &turn_sock_on_destroy); /* Init timer */ pj_timer_entry_init(&turn_sock->timer, TIMER_NONE, turn_sock, &timer_cb); /* Init TURN session */ pj_bzero(&sess_cb, sizeof(sess_cb)); sess_cb.on_send_pkt = &turn_on_send_pkt; sess_cb.on_channel_bound = &turn_on_channel_bound; sess_cb.on_rx_data = &turn_on_rx_data; sess_cb.on_state = &turn_on_state; status = pj_turn_session_create(cfg, pool->obj_name, af, conn_type, turn_sock->grp_lock, &sess_cb, 0, turn_sock, &turn_sock->sess); if (status != PJ_SUCCESS) { destroy(turn_sock); return status; } /* Note: socket and ioqueue will be created later once the TURN server * has been resolved. */ *p_turn_sock = turn_sock; return PJ_SUCCESS; } /* * Destroy. */ static void turn_sock_on_destroy(void *comp) { pj_turn_sock *turn_sock = (pj_turn_sock*) comp; if (turn_sock->pool) { PJ_LOG(4,(turn_sock->obj_name, "TURN socket destroyed")); pj_pool_safe_release(&turn_sock->pool); } } static void destroy(pj_turn_sock *turn_sock) { PJ_LOG(4,(turn_sock->obj_name, "TURN socket destroy request, ref_cnt=%d", pj_grp_lock_get_ref(turn_sock->grp_lock))); pj_grp_lock_acquire(turn_sock->grp_lock); if (turn_sock->is_destroying) { pj_grp_lock_release(turn_sock->grp_lock); return; } turn_sock->is_destroying = PJ_TRUE; if (turn_sock->sess) pj_turn_session_shutdown(turn_sock->sess); if (turn_sock->active_sock) pj_activesock_close(turn_sock->active_sock); pj_grp_lock_dec_ref(turn_sock->grp_lock); pj_grp_lock_release(turn_sock->grp_lock); } PJ_DEF(void) pj_turn_sock_destroy(pj_turn_sock *turn_sock) { pj_grp_lock_acquire(turn_sock->grp_lock); if (turn_sock->is_destroying) { pj_grp_lock_release(turn_sock->grp_lock); return; } if (turn_sock->sess) { pj_turn_session_shutdown(turn_sock->sess); /* This will ultimately call our state callback, and when * session state is DESTROYING we will schedule a timer to * destroy ourselves. */ } else { destroy(turn_sock); } pj_grp_lock_release(turn_sock->grp_lock); } /* Timer callback */ static void timer_cb(pj_timer_heap_t *th, pj_timer_entry *e) { pj_turn_sock *turn_sock = (pj_turn_sock*)e->user_data; int eid = e->id; PJ_UNUSED_ARG(th); e->id = TIMER_NONE; switch (eid) { case TIMER_DESTROY: destroy(turn_sock); break; default: pj_assert(!"Invalid timer id"); break; } } /* Display error */ static void show_err(pj_turn_sock *turn_sock, const char *title, pj_status_t status) { PJ_PERROR(4,(turn_sock->obj_name, status, title)); } /* On error, terminate session */ static void sess_fail(pj_turn_sock *turn_sock, const char *title, pj_status_t status) { show_err(turn_sock, title, status); if (turn_sock->sess) { pj_turn_session_destroy(turn_sock->sess, status); } } /* * Set user data. */ PJ_DEF(pj_status_t) pj_turn_sock_set_user_data( pj_turn_sock *turn_sock, void *user_data) { PJ_ASSERT_RETURN(turn_sock, PJ_EINVAL); turn_sock->user_data = user_data; return PJ_SUCCESS; } /* * Get user data. */ PJ_DEF(void*) pj_turn_sock_get_user_data(pj_turn_sock *turn_sock) { PJ_ASSERT_RETURN(turn_sock, NULL); return turn_sock->user_data; } /* * Get group lock. */ PJ_DEF(pj_grp_lock_t *) pj_turn_sock_get_grp_lock(pj_turn_sock *turn_sock) { PJ_ASSERT_RETURN(turn_sock, NULL); return turn_sock->grp_lock; } /** * Get info. */ PJ_DEF(pj_status_t) pj_turn_sock_get_info(pj_turn_sock *turn_sock, pj_turn_session_info *info) { PJ_ASSERT_RETURN(turn_sock && info, PJ_EINVAL); if (turn_sock->sess) { return pj_turn_session_get_info(turn_sock->sess, info); } else { pj_bzero(info, sizeof(*info)); info->state = PJ_TURN_STATE_NULL; return PJ_SUCCESS; } } /** * Lock the TURN socket. Application may need to call this function to * synchronize access to other objects to avoid deadlock. */ PJ_DEF(pj_status_t) pj_turn_sock_lock(pj_turn_sock *turn_sock) { return pj_grp_lock_acquire(turn_sock->grp_lock); } /** * Unlock the TURN socket. */ PJ_DEF(pj_status_t) pj_turn_sock_unlock(pj_turn_sock *turn_sock) { return pj_grp_lock_release(turn_sock->grp_lock); } /* * Set STUN message logging for this TURN session. */ PJ_DEF(void) pj_turn_sock_set_log( pj_turn_sock *turn_sock, unsigned flags) { pj_turn_session_set_log(turn_sock->sess, flags); } /* * Set software name */ PJ_DEF(pj_status_t) pj_turn_sock_set_software_name( pj_turn_sock *turn_sock, const pj_str_t *sw) { return pj_turn_session_set_software_name(turn_sock->sess, sw); } /* * Initialize. */ PJ_DEF(pj_status_t) pj_turn_sock_alloc(pj_turn_sock *turn_sock, const pj_str_t *domain, int default_port, pj_dns_resolver *resolver, const pj_stun_auth_cred *cred, const pj_turn_alloc_param *param) { pj_status_t status; PJ_ASSERT_RETURN(turn_sock && domain, PJ_EINVAL); PJ_ASSERT_RETURN(turn_sock->sess, PJ_EINVALIDOP); pj_grp_lock_acquire(turn_sock->grp_lock); /* Copy alloc param. We will call session_alloc() only after the * server address has been resolved. */ if (param) { pj_turn_alloc_param_copy(turn_sock->pool, &turn_sock->alloc_param, param); } else { pj_turn_alloc_param_default(&turn_sock->alloc_param); } /* Set credental */ if (cred) { status = pj_turn_session_set_credential(turn_sock->sess, cred); if (status != PJ_SUCCESS) { sess_fail(turn_sock, "Error setting credential", status); pj_grp_lock_release(turn_sock->grp_lock); return status; } } /* Resolve server */ status = pj_turn_session_set_server(turn_sock->sess, domain, default_port, resolver); if (status != PJ_SUCCESS) { sess_fail(turn_sock, "Error setting TURN server", status); pj_grp_lock_release(turn_sock->grp_lock); return status; } else if (!turn_sock->sess) { /* TURN session may have been destroyed here, i.e: when DNS resolution * completed synchronously and TURN allocation failed. */ PJ_LOG(4,(turn_sock->obj_name, "TURN session destroyed in setting " "TURN server")); pj_grp_lock_release(turn_sock->grp_lock); return PJ_EGONE; } /* Done for now. The next work will be done when session state moved * to RESOLVED state. */ pj_grp_lock_release(turn_sock->grp_lock); return PJ_SUCCESS; } /* * Install permission */ PJ_DEF(pj_status_t) pj_turn_sock_set_perm( pj_turn_sock *turn_sock, unsigned addr_cnt, const pj_sockaddr addr[], unsigned options) { if (turn_sock->sess == NULL) return PJ_EINVALIDOP; return pj_turn_session_set_perm(turn_sock->sess, addr_cnt, addr, options); } /* * Send packet. */ PJ_DEF(pj_status_t) pj_turn_sock_sendto( pj_turn_sock *turn_sock, const pj_uint8_t *pkt, unsigned pkt_len, const pj_sockaddr_t *addr, unsigned addr_len) { PJ_ASSERT_RETURN(turn_sock && addr && addr_len, PJ_EINVAL); if (turn_sock->sess == NULL) return PJ_EINVALIDOP; return pj_turn_session_sendto(turn_sock->sess, pkt, pkt_len, addr, addr_len); } /* * Bind a peer address to a channel number. */ PJ_DEF(pj_status_t) pj_turn_sock_bind_channel( pj_turn_sock *turn_sock, const pj_sockaddr_t *peer, unsigned addr_len) { PJ_ASSERT_RETURN(turn_sock && peer && addr_len, PJ_EINVAL); PJ_ASSERT_RETURN(turn_sock->sess != NULL, PJ_EINVALIDOP); return pj_turn_session_bind_channel(turn_sock->sess, peer, addr_len); } /* * Notification when outgoing TCP socket has been connected. */ static pj_bool_t on_connect_complete(pj_activesock_t *asock, pj_status_t status) { pj_turn_sock *turn_sock; turn_sock = (pj_turn_sock*) pj_activesock_get_user_data(asock); if (!turn_sock) return PJ_FALSE; pj_grp_lock_acquire(turn_sock->grp_lock); /* TURN session may have already been destroyed here. * See ticket #1557 (http://trac.pjsip.org/repos/ticket/1557). */ if (!turn_sock->sess) { sess_fail(turn_sock, "TURN session already destroyed", status); pj_grp_lock_release(turn_sock->grp_lock); return PJ_FALSE; } if (status != PJ_SUCCESS) { sess_fail(turn_sock, "TCP connect() error", status); pj_grp_lock_release(turn_sock->grp_lock); return PJ_FALSE; } if (turn_sock->conn_type != PJ_TURN_TP_UDP) { PJ_LOG(5,(turn_sock->obj_name, "TCP connected")); } /* Kick start pending read operation */ status = pj_activesock_start_read(asock, turn_sock->pool, turn_sock->setting.max_pkt_size, 0); /* Init send_key */ pj_ioqueue_op_key_init(&turn_sock->send_key, sizeof(turn_sock->send_key)); /* Send Allocate request */ status = pj_turn_session_alloc(turn_sock->sess, &turn_sock->alloc_param); if (status != PJ_SUCCESS) { sess_fail(turn_sock, "Error sending ALLOCATE", status); pj_grp_lock_release(turn_sock->grp_lock); return PJ_FALSE; } pj_grp_lock_release(turn_sock->grp_lock); return PJ_TRUE; } static pj_uint16_t GETVAL16H(const pj_uint8_t *buf, unsigned pos) { return (pj_uint16_t) ((buf[pos + 0] << 8) | \ (buf[pos + 1] << 0)); } /* Quick check to determine if there is enough packet to process in the * incoming buffer. Return the packet length, or zero if there's no packet. */ static unsigned has_packet(pj_turn_sock *turn_sock, const void *buf, pj_size_t bufsize) { pj_bool_t is_stun; if (turn_sock->conn_type == PJ_TURN_TP_UDP) return (unsigned)bufsize; /* Quickly check if this is STUN message, by checking the first two bits and * size field which must be multiple of 4 bytes */ is_stun = ((((pj_uint8_t*)buf)[0] & 0xC0) == 0) && ((GETVAL16H((const pj_uint8_t*)buf, 2) & 0x03)==0); if (is_stun) { pj_size_t msg_len = GETVAL16H((const pj_uint8_t*)buf, 2); return (unsigned)((msg_len+20 <= bufsize) ? msg_len+20 : 0); } else { /* This must be ChannelData. */ pj_turn_channel_data cd; if (bufsize < 4) return 0; /* Decode ChannelData packet */ pj_memcpy(&cd, buf, sizeof(pj_turn_channel_data)); cd.length = pj_ntohs(cd.length); if (bufsize >= cd.length+sizeof(cd)) return (cd.length+sizeof(cd)+3) & (~3); else return 0; } } /* * Notification from ioqueue when incoming UDP packet is received. */ static pj_bool_t on_data_read(pj_activesock_t *asock, void *data, pj_size_t size, pj_status_t status, pj_size_t *remainder) { pj_turn_sock *turn_sock; pj_bool_t ret = PJ_TRUE; turn_sock = (pj_turn_sock*) pj_activesock_get_user_data(asock); pj_grp_lock_acquire(turn_sock->grp_lock); if (status == PJ_SUCCESS && turn_sock->sess && !turn_sock->is_destroying) { /* Report incoming packet to TURN session, repeat while we have * "packet" in the buffer (required for stream-oriented transports) */ unsigned pkt_len; //PJ_LOG(5,(turn_sock->pool->obj_name, // "Incoming data, %lu bytes total buffer", size)); while ((pkt_len=has_packet(turn_sock, data, size)) != 0) { pj_size_t parsed_len; //const pj_uint8_t *pkt = (const pj_uint8_t*)data; //PJ_LOG(5,(turn_sock->pool->obj_name, // "Packet start: %02X %02X %02X %02X", // pkt[0], pkt[1], pkt[2], pkt[3])); //PJ_LOG(5,(turn_sock->pool->obj_name, // "Processing %lu bytes packet of %lu bytes total buffer", // pkt_len, size)); parsed_len = (unsigned)size; pj_turn_session_on_rx_pkt(turn_sock->sess, data, size, &parsed_len); /* parsed_len may be zero if we have parsing error, so use our * previous calculation to exhaust the bad packet. */ if (parsed_len == 0) parsed_len = pkt_len; if (parsed_len < (unsigned)size) { *remainder = size - parsed_len; pj_memmove(data, ((char*)data)+parsed_len, *remainder); } else { *remainder = 0; } size = *remainder; //PJ_LOG(5,(turn_sock->pool->obj_name, // "Buffer size now %lu bytes", size)); } } else if (status != PJ_SUCCESS && turn_sock->conn_type != PJ_TURN_TP_UDP) { sess_fail(turn_sock, "TCP connection closed", status); ret = PJ_FALSE; goto on_return; } on_return: pj_grp_lock_release(turn_sock->grp_lock); return ret; } /* * Callback from TURN session to send outgoing packet. */ static pj_status_t turn_on_send_pkt(pj_turn_session *sess, const pj_uint8_t *pkt, unsigned pkt_len, const pj_sockaddr_t *dst_addr, unsigned dst_addr_len) { pj_turn_sock *turn_sock = (pj_turn_sock*) pj_turn_session_get_user_data(sess); pj_ssize_t len = pkt_len; pj_status_t status; if (turn_sock == NULL || turn_sock->is_destroying) { /* We've been destroyed */ // https://trac.pjsip.org/repos/ticket/1316 //pj_assert(!"We should shutdown gracefully"); return PJ_EINVALIDOP; } PJ_UNUSED_ARG(dst_addr); PJ_UNUSED_ARG(dst_addr_len); status = pj_activesock_send(turn_sock->active_sock, &turn_sock->send_key, pkt, &len, 0); if (status != PJ_SUCCESS && status != PJ_EPENDING) { show_err(turn_sock, "socket send()", status); } return status; } /* * Callback from TURN session when a channel is successfully bound. */ static void turn_on_channel_bound(pj_turn_session *sess, const pj_sockaddr_t *peer_addr, unsigned addr_len, unsigned ch_num) { PJ_UNUSED_ARG(sess); PJ_UNUSED_ARG(peer_addr); PJ_UNUSED_ARG(addr_len); PJ_UNUSED_ARG(ch_num); } /* * Callback from TURN session upon incoming data. */ static void turn_on_rx_data(pj_turn_session *sess, void *pkt, unsigned pkt_len, const pj_sockaddr_t *peer_addr, unsigned addr_len) { pj_turn_sock *turn_sock = (pj_turn_sock*) pj_turn_session_get_user_data(sess); if (turn_sock == NULL || turn_sock->is_destroying) { /* We've been destroyed */ return; } if (turn_sock->cb.on_rx_data) { (*turn_sock->cb.on_rx_data)(turn_sock, pkt, pkt_len, peer_addr, addr_len); } } /* * Callback from TURN session when state has changed */ static void turn_on_state(pj_turn_session *sess, pj_turn_state_t old_state, pj_turn_state_t new_state) { pj_turn_sock *turn_sock = (pj_turn_sock*) pj_turn_session_get_user_data(sess); pj_status_t status; if (turn_sock == NULL) { /* We've been destroyed */ return; } /* Notify app first */ if (turn_sock->cb.on_state) { (*turn_sock->cb.on_state)(turn_sock, old_state, new_state); } /* Make sure user hasn't destroyed us in the callback */ if (turn_sock->sess && new_state == PJ_TURN_STATE_RESOLVED) { pj_turn_session_info info; pj_turn_session_get_info(turn_sock->sess, &info); new_state = info.state; } if (turn_sock->sess && new_state == PJ_TURN_STATE_RESOLVED) { /* * Once server has been resolved, initiate outgoing TCP * connection to the server. */ pj_turn_session_info info; char addrtxt[PJ_INET6_ADDRSTRLEN+8]; int sock_type; pj_sock_t sock; pj_activesock_cfg asock_cfg; pj_activesock_cb asock_cb; pj_sockaddr bound_addr, *cfg_bind_addr; pj_uint16_t max_bind_retry; /* Close existing connection, if any. This happens when * we're switching to alternate TURN server when either TCP * connection or ALLOCATE request failed. */ if (turn_sock->active_sock) { pj_activesock_close(turn_sock->active_sock); turn_sock->active_sock = NULL; } /* Get server address from session info */ pj_turn_session_get_info(sess, &info); if (turn_sock->conn_type == PJ_TURN_TP_UDP) sock_type = pj_SOCK_DGRAM(); else sock_type = pj_SOCK_STREAM(); /* Init socket */ status = pj_sock_socket(turn_sock->af, sock_type, 0, &sock); if (status != PJ_SUCCESS) { pj_turn_sock_destroy(turn_sock); return; } /* Bind socket */ cfg_bind_addr = &turn_sock->setting.bound_addr; max_bind_retry = MAX_BIND_RETRY; if (turn_sock->setting.port_range && turn_sock->setting.port_range < max_bind_retry) { max_bind_retry = turn_sock->setting.port_range; } pj_sockaddr_init(turn_sock->af, &bound_addr, NULL, 0); if (cfg_bind_addr->addr.sa_family == pj_AF_INET() || cfg_bind_addr->addr.sa_family == pj_AF_INET6()) { pj_sockaddr_cp(&bound_addr, cfg_bind_addr); } status = pj_sock_bind_random(sock, &bound_addr, turn_sock->setting.port_range, max_bind_retry); if (status != PJ_SUCCESS) { pj_turn_sock_destroy(turn_sock); return; } /* Apply QoS, if specified */ status = pj_sock_apply_qos2(sock, turn_sock->setting.qos_type, &turn_sock->setting.qos_params, (turn_sock->setting.qos_ignore_error?2:1), turn_sock->pool->obj_name, NULL); if (status != PJ_SUCCESS && !turn_sock->setting.qos_ignore_error) { pj_turn_sock_destroy(turn_sock); return; } /* Apply socket buffer size */ if (turn_sock->setting.so_rcvbuf_size > 0) { unsigned sobuf_size = turn_sock->setting.so_rcvbuf_size; status = pj_sock_setsockopt_sobuf(sock, pj_SO_RCVBUF(), PJ_TRUE, &sobuf_size); if (status != PJ_SUCCESS) { pj_perror(3, turn_sock->obj_name, status, "Failed setting SO_RCVBUF"); } else { if (sobuf_size < turn_sock->setting.so_rcvbuf_size) { PJ_LOG(4, (turn_sock->obj_name, "Warning! Cannot set SO_RCVBUF as configured," " now=%d, configured=%d", sobuf_size, turn_sock->setting.so_rcvbuf_size)); } else { PJ_LOG(5, (turn_sock->obj_name, "SO_RCVBUF set to %d", sobuf_size)); } } } if (turn_sock->setting.so_sndbuf_size > 0) { unsigned sobuf_size = turn_sock->setting.so_sndbuf_size; status = pj_sock_setsockopt_sobuf(sock, pj_SO_SNDBUF(), PJ_TRUE, &sobuf_size); if (status != PJ_SUCCESS) { pj_perror(3, turn_sock->obj_name, status, "Failed setting SO_SNDBUF"); } else { if (sobuf_size < turn_sock->setting.so_sndbuf_size) { PJ_LOG(4, (turn_sock->obj_name, "Warning! Cannot set SO_SNDBUF as configured," " now=%d, configured=%d", sobuf_size, turn_sock->setting.so_sndbuf_size)); } else { PJ_LOG(5, (turn_sock->obj_name, "SO_SNDBUF set to %d", sobuf_size)); } } } /* Create active socket */ pj_activesock_cfg_default(&asock_cfg); asock_cfg.grp_lock = turn_sock->grp_lock; pj_bzero(&asock_cb, sizeof(asock_cb)); asock_cb.on_data_read = &on_data_read; asock_cb.on_connect_complete = &on_connect_complete; status = pj_activesock_create(turn_sock->pool, sock, sock_type, &asock_cfg, turn_sock->cfg.ioqueue, &asock_cb, turn_sock, &turn_sock->active_sock); if (status != PJ_SUCCESS) { pj_turn_sock_destroy(turn_sock); return; } PJ_LOG(5,(turn_sock->pool->obj_name, "Connecting to %s", pj_sockaddr_print(&info.server, addrtxt, sizeof(addrtxt), 3))); /* Initiate non-blocking connect */ #if PJ_HAS_TCP status=pj_activesock_start_connect(turn_sock->active_sock, turn_sock->pool, &info.server, pj_sockaddr_get_len(&info.server)); if (status == PJ_SUCCESS) { on_connect_complete(turn_sock->active_sock, PJ_SUCCESS); } else if (status != PJ_EPENDING) { pj_perror(3, turn_sock->pool->obj_name, status, "Failed to connect to %s", pj_sockaddr_print(&info.server, addrtxt, sizeof(addrtxt), 3)); pj_turn_sock_destroy(turn_sock); return; } #else on_connect_complete(turn_sock->active_sock, PJ_SUCCESS); #endif /* Done for now. Subsequent work will be done in * on_connect_complete() callback. */ } if (new_state >= PJ_TURN_STATE_DESTROYING && turn_sock->sess) { pj_time_val delay = {0, 0}; turn_sock->sess = NULL; pj_turn_session_set_user_data(sess, NULL); pj_timer_heap_cancel_if_active(turn_sock->cfg.timer_heap, &turn_sock->timer, 0); pj_timer_heap_schedule_w_grp_lock(turn_sock->cfg.timer_heap, &turn_sock->timer, &delay, TIMER_DESTROY, turn_sock->grp_lock); } }