1987 lines
78 KiB
C
Executable File
1987 lines
78 KiB
C
Executable File
/*
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* Copyright (C) 2012 Mamadou Diop
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* Copyright (C) 2012-2013 Doubango Telecom <http://www.doubango.org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file trtp_manager.c
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* @brief RTP/RTCP manager.
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*
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*/
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#include "tinyrtp/trtp_manager.h"
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#include "tinyrtp/rtp/trtp_rtp_packet.h"
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#include "tinyrtp/rtcp/trtp_rtcp_packet.h"
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#include "tinyrtp/rtcp/trtp_rtcp_session.h"
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#include "tnet_proxydetect.h"
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#include "turn/tnet_turn_session.h"
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#include "ice/tnet_ice_candidate.h"
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#include "tsk_string.h"
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#include "tsk_memory.h"
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#include "tsk_base64.h"
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#include "tsk_md5.h"
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#include "tsk_debug.h"
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#include <limits.h> /* INT_MAX */
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#if !defined(TRTP_TRANSPORT_NAME)
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# define TRTP_TRANSPORT_NAME "RTP/RTCP Manager"
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#endif
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#if !defined(TRTP_DISABLE_SOCKETS_BEFORE_START)
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# define TRTP_DISABLE_SOCKETS_BEFORE_START 0
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#endif
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#if !defined(TRTP_TINY_RCVBUF)
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# define TRTP_TINY_RCVBUF (256>>1/*Will be doubled and min on linux is 256*/) /* tiny buffer used to disable receiving */
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#endif
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#if !defined(TRTP_DSCP_RTP_DEFAULT)
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# define TRTP_DSCP_RTP_DEFAULT /* 0x2e */ 0x00
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#endif
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#if !defined(TRTP_PORT_RANGE_START)
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# define TRTP_PORT_RANGE_START 1024
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#endif
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#if !defined(TRTP_PORT_RANGE_STOP)
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# define TRTP_PORT_RANGE_STOP 65535
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#endif
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#if !defined(TRTP_DTLS_HANDSHAKING_TIMEOUT)
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# define TRTP_DTLS_HANDSHAKING_TIMEOUT 1000
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#endif
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#if !defined(TRTP_DTLS_HANDSHAKING_TIMEOUT_MAX)
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# define TRTP_DTLS_HANDSHAKING_TIMEOUT_MAX (TRTP_DTLS_HANDSHAKING_TIMEOUT << 20)
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#endif
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static const tmedia_srtp_type_t __srtp_types[] = { tmedia_srtp_type_sdes, tmedia_srtp_type_dtls };
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static int _trtp_manager_recv_data(const trtp_manager_t* self, const uint8_t* data_ptr, tsk_size_t data_size, tnet_fd_t local_fd, const struct sockaddr_storage* remote_addr);
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#define _trtp_manager_is_rtcpmux_active(self) ( (self) && ( (self)->use_rtcpmux && (!(self)->rtcp.local_socket || ((self)->transport && (self)->transport->master && (self)->transport->master->fd == (self)->rtcp.local_socket->fd)) ) )
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static int _trtp_manager_send_turn_dtls(struct tnet_ice_ctx_s* ice_ctx, const void* handshaking_data_ptr, tsk_size_t handshaking_data_size, tsk_bool_t use_rtcp_channel);
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#define _trtp_manager_send_turn_dtls_rtp(ice_ctx, handshaking_data_ptr, handshaking_data_size) _trtp_manager_send_turn_dtls((ice_ctx), (handshaking_data_ptr), (handshaking_data_size), /*use_rtcp_channel =*/tsk_false)
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#define _trtp_manager_send_turn_dtls_rtcp(ice_ctx, handshaking_data_ptr, handshaking_data_size) _trtp_manager_send_turn_dtls((ice_ctx), (handshaking_data_ptr), (handshaking_data_size), /*use_rtcp_channel =*/tsk_true)
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#if HAVE_SRTP
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static int _trtp_manager_srtp_set_enabled(trtp_manager_t* self, tmedia_srtp_type_t srtp_type, struct tnet_socket_s** sockets, tsk_size_t count, tsk_bool_t enabled);
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static int _trtp_manager_srtp_activate(trtp_manager_t* self, tmedia_srtp_type_t srtp_type);
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static int _trtp_manager_srtp_start(trtp_manager_t* self, tmedia_srtp_type_t srtp_type);
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#endif /* HAVE_SRTP */
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/* ======================= Transport callback ========================== */
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static int _trtp_transport_layer_cb(const tnet_transport_event_t* e)
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{
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trtp_manager_t* manager = (trtp_manager_t*)e->callback_data;
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switch(e->type) {
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case event_data: {
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return _trtp_manager_recv_data(manager, e->data, e->size, e->local_fd, &e->remote_addr);
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}
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case event_brokenpipe: {
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tnet_fd_t broken_fd;
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tnet_socket_t* socket;
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tsk_bool_t is_rtcp_socket;
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tsk_safeobj_lock(manager);
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broken_fd = e->local_fd;
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socket = tsk_null;
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is_rtcp_socket = tsk_false;
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if (manager->transport && manager->transport->master && manager->transport->master->fd == broken_fd) {
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socket = manager->transport->master;
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}
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else if (manager->rtcp.local_socket && manager->rtcp.local_socket->fd == broken_fd) {
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socket = manager->rtcp.local_socket;
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is_rtcp_socket = tsk_true;
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}
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if (socket) {
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tsk_bool_t registered_fd = !!tnet_transport_have_socket(manager->transport, broken_fd);
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if (registered_fd) {
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tnet_transport_remove_socket(manager->transport, &broken_fd); // broken_fd=-1
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broken_fd = e->local_fd; // restore
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}
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if (tnet_socket_handle_brokenpipe(socket) == 0) {
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if (registered_fd) {
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tnet_transport_add_socket(manager->transport, socket->fd, socket->type, tsk_false/* do not take ownership */, tsk_true/* only Meaningful for tls*/, tsk_null);
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}
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if (manager->rtcp.session && trtp_rtcp_session_get_local_fd(manager->rtcp.session) == broken_fd) {
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trtp_rtcp_session_set_local_fd(manager->rtcp.session, socket->fd);
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}
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}
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}
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tsk_safeobj_unlock(manager);
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return 0;
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}
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#if HAVE_SRTP
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/* DTLS - SRTP events */
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case event_dtls_handshake_succeed: {
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const tnet_socket_t* socket = manager->transport && manager->transport->master && (manager->transport->master->fd == e->local_fd)
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? manager->transport->master
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: ((manager->rtcp.local_socket && manager->rtcp.local_socket->fd == e->local_fd) ? manager->rtcp.local_socket : tsk_null);
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if(!socket) {
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TSK_DEBUG_ERROR("DTLS data from unknown socket");
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break;
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}
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if (!manager->dtls.srtp_handshake_succeed) {
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manager->dtls.srtp_handshake_succeed = (socket == manager->transport->master);
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}
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if (!manager->dtls.srtcp_handshake_succeed) {
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manager->dtls.srtcp_handshake_succeed = (socket == manager->rtcp.local_socket) || _trtp_manager_is_rtcpmux_active(manager);
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}
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TSK_DEBUG_INFO("dtls.srtp_handshake_succeed=%d, dtls.srtcp_handshake_succeed=%d", manager->dtls.srtp_handshake_succeed, manager->dtls.srtcp_handshake_succeed);
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TSK_DEBUG_INFO("DTLS-DTLS-SRTP socket [%s]:%d handshake succeed", socket->ip, socket->port);
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if(manager->dtls.srtp_handshake_succeed && manager->dtls.srtcp_handshake_succeed) {
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// alter listeners
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if(manager->dtls.cb.fun) {
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manager->dtls.cb.fun(manager->dtls.cb.usrdata, trtp_srtp_dtls_event_type_handshake_succeed, "DTLS handshake succeed");
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}
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}
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break;
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}
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case event_dtls_fingerprint_mismatch:
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case event_dtls_handshake_failed:
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case event_dtls_error: {
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// alter listeners
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if(manager->dtls.cb.fun) {
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const char* reason = (e->type == event_dtls_fingerprint_mismatch)
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? "DTLS-SRTP fingerprint mismatch"
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: (e->type == event_dtls_handshake_failed ? "DTLS-SRTP handshake failed" : "DTLS error");
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manager->dtls.cb.fun(manager->dtls.cb.usrdata, trtp_srtp_dtls_event_type_handshake_failed, reason);
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}
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break;
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}
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case event_dtls_srtp_data: {
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/* KEY||SALT */
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/* rfc 5764 - 4.2. Key Derivation */
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tsk_bool_t is_rtp = (manager->transport->master && manager->transport->master->fd == e->local_fd);
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tsk_bool_t is_rtcp = (manager->rtcp.local_socket && manager->rtcp.local_socket->fd == e->local_fd);
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if(is_rtp || is_rtcp) {
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unsigned int master_salt_length, master_key_length;
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#if HAVE_SRTP_PROFILE_GET_MASTER_KEY_LENGTH
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master_key_length = srtp_profile_get_master_key_length(manager->dtls.crypto_selected == HMAC_SHA1_32 ? srtp_profile_aes128_cm_sha1_32 : srtp_profile_aes128_cm_sha1_80);
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#else
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master_key_length = (128 >> 3); // cipher_key_length - rfc5764 4.1.2. SRTP Protection Profiles
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#endif
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#if HAVE_SRTP_PROFILE_GET_MASTER_SALT_LENGTH
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master_salt_length = srtp_profile_get_master_salt_length(manager->dtls.crypto_selected == HMAC_SHA1_32 ? srtp_profile_aes128_cm_sha1_32 : srtp_profile_aes128_cm_sha1_80);
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#else
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master_salt_length = (112 >> 3); // cipher_salt_length - rfc5764 4.1.2. SRTP Protection Profiles
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#endif
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if(((master_key_length + master_salt_length) << 1) > e->size) {
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TSK_DEBUG_ERROR("%d not a valid size for this profile", (int)e->size);
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}
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else {
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int ret;
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const uint8_t* data_ptr = e->data;
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const uint8_t *lk, *ls, *rk, *rs;
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if(manager->dtls.local.setup == tnet_dtls_setup_passive) {
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rk = &data_ptr[0];
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lk = rk + master_key_length;
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rs = (lk + master_key_length);
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ls = (rs + master_salt_length);
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}
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else {
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lk = &data_ptr[0];
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rk = lk + master_key_length;
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ls = (rk + master_key_length);
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rs = (ls + master_salt_length);
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}
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// set key||salt
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if((ret = trtp_srtp_set_key_and_salt_remote(manager, manager->dtls.crypto_selected, rk, master_key_length, rs, master_salt_length, is_rtp))) {
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if(manager->dtls.cb.fun) {
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manager->dtls.cb.fun(manager->dtls.cb.usrdata, trtp_srtp_dtls_event_type_fatal_error, "Failed to set remote DTSL-SRTP key||salt");
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}
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return ret;
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}
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if((ret = trtp_srtp_set_key_and_salt_local(manager, manager->dtls.crypto_selected, lk, master_key_length, ls, master_salt_length, is_rtp))) {
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if(manager->dtls.cb.fun) {
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manager->dtls.cb.fun(manager->dtls.cb.usrdata, trtp_srtp_dtls_event_type_fatal_error, "Failed to set local DTSL-SRTP key||salt");
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}
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return ret;
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}
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if(is_rtp) {
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manager->dtls.srtp_connected = manager->srtp_contexts[TRTP_SRTP_LINE_IDX_LOCAL][manager->dtls.crypto_selected].rtp.initialized;
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if(_trtp_manager_is_rtcpmux_active(manager)) {
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manager->dtls.srtcp_connected = tsk_true;
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}
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}
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else { // rtcp
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manager->dtls.srtcp_connected = manager->srtp_contexts[TRTP_SRTP_LINE_IDX_LOCAL][manager->dtls.crypto_selected].rtcp.initialized;
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}
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TSK_DEBUG_INFO("dtls.srtp_connected=%d, dtls.srtcp_connected=%d", manager->dtls.srtp_connected, manager->dtls.srtcp_connected);
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if(manager->dtls.srtp_connected && manager->dtls.srtcp_connected) {
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// start DTLS-SRTP
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if((ret = _trtp_manager_srtp_start(manager, manager->srtp_type))) {
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if(manager->dtls.cb.fun) {
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manager->dtls.cb.fun(manager->dtls.cb.usrdata, trtp_srtp_dtls_event_type_fatal_error, "Failed to set start DTSL-SRTP engine");
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}
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return ret;
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}
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TSK_DEBUG_INFO("!!DTLS-SRTP started!!");
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// alter listeners
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if(manager->dtls.cb.fun) {
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manager->dtls.cb.fun(manager->dtls.cb.usrdata, trtp_srtp_dtls_event_type_started, "DTLS started");
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}
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}
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}
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}
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break;
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}
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case event_dtls_srtp_profile_selected: {
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if(manager->transport->master && manager->transport->master->fd == e->local_fd) {
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/* Only (SRTP_AES128_CM_SHA1_80 | SRTP_AES128_CM_SHA1_32) because of _trtp_manager_srtp_activate() */
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TSK_DEBUG_INFO("event_dtls_srtp_profile_selected: %.*s", 22, (const char*)e->data);
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manager->dtls.crypto_selected = HMAC_SHA1_80;
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if(tsk_strnequals(e->data, "SRTP_AES128_CM_SHA1_32", 22)) {
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manager->dtls.crypto_selected = HMAC_SHA1_32;
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}
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}
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break;
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}
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#endif /* HAVE_SRTP */
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case event_connected:
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case event_closed: {
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break;
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}
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default:
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break;
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}
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return 0;
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}
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static int _trtp_transport_dtls_handshaking_timer_cb(const void* arg, tsk_timer_id_t timer_id)
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{
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int ret = 0;
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#if HAVE_SRTP
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trtp_manager_t* manager = (trtp_manager_t*)arg;
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tsk_safeobj_lock(manager);
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if (manager->is_started && manager->dtls.timer_hanshaking.id == timer_id && manager->srtp_state == trtp_srtp_state_activated && manager->srtp_type == tmedia_srtp_type_dtls) {
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// retry DTLS-SRTP handshaking if srtp-type is DTLS-SRTP and the engine is activated
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struct tnet_socket_s* sockets[] = { manager->dtls.srtp_connected ? tsk_null : manager->transport->master , manager->dtls.srtcp_connected ? tsk_null : manager->rtcp.local_socket };
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const struct sockaddr_storage* remote_addrs[] = { &manager->rtp.remote_addr, &manager->rtcp.remote_addr };
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TSK_DEBUG_INFO("_trtp_transport_dtls_handshaking_timer_cb(timeout=%llu)", manager->dtls.timer_hanshaking.timeout);
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tnet_transport_dtls_do_handshake(manager->transport, sockets, 2, remote_addrs, 2);
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if (manager->is_ice_turn_active) {
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// means TURN is active and handshaking data must be sent using this channel
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const void* data[] = { tsk_null, tsk_null };
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tsk_size_t size[] = { 0, 0 };
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if ((ret = tnet_transport_dtls_get_handshakingdata(manager->transport, (const struct tnet_socket_s**)sockets, 2, data, size))) {
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return ret;
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}
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if (data[0] && size[0]) {
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ret = _trtp_manager_send_turn_dtls_rtp(manager->ice_ctx, data[0], size[0]);
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}
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if (data[1] && size[1]) {
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ret = _trtp_manager_send_turn_dtls_rtcp(manager->ice_ctx, data[1], size[1]);
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}
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}
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// increase timeout
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manager->dtls.timer_hanshaking.timeout += (TRTP_DTLS_HANDSHAKING_TIMEOUT >> 1);
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if ((manager->dtls.timer_hanshaking.timeout < TRTP_DTLS_HANDSHAKING_TIMEOUT_MAX) && !(manager->dtls.srtp_connected && manager->dtls.srtcp_connected)) {
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manager->dtls.timer_hanshaking.id = tsk_timer_manager_schedule(manager->timer_mgr_global, manager->dtls.timer_hanshaking.timeout, _trtp_transport_dtls_handshaking_timer_cb, manager);
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}
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else {
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manager->dtls.timer_hanshaking.id = TSK_INVALID_TIMER_ID; // invalidate timer id (not required but should be done by good citizen)
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manager->dtls.timer_hanshaking.timeout = TRTP_DTLS_HANDSHAKING_TIMEOUT; // reset timeout
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}
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}
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tsk_safeobj_unlock(manager);
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#endif
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return ret;
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}
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#if 0
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static int _trtp_manager_enable_sockets(trtp_manager_t* self)
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{
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int rcv_buf = tmedia_defaults_get_rtpbuff_size();
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int snd_buf = tmedia_defaults_get_rtpbuff_size();
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int ret;
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if(!self->socket_disabled) {
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return 0;
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}
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if(!self || !self->transport) {
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if((ret = setsockopt(self->transport->master->fd, SOL_SOCKET, SO_RCVBUF, (char*)&rcv_buf, sizeof(rcv_buf)))) {
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TNET_PRINT_LAST_ERROR("setsockopt(SOL_SOCKET, SO_RCVBUF) has failed with error code %d", ret);
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return ret;
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}
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if((ret = setsockopt(self->transport->master->fd, SOL_SOCKET, SO_SNDBUF, (char*)&snd_buf, sizeof(snd_buf)))) {
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TNET_PRINT_LAST_ERROR("setsockopt(SOL_SOCKET, SO_RCVBUF) has failed with error code %d", ret);
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return ret;
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}
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self->socket_disabled = tsk_false;
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return 0;
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}
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#endif
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static trtp_manager_t* _trtp_manager_create(tsk_bool_t use_rtcp, const char* local_ip, tsk_bool_t ipv6, tmedia_srtp_type_t srtp_type, tmedia_srtp_mode_t srtp_mode)
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{
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trtp_manager_t* manager;
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#if HAVE_SRTP
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static tsk_bool_t __strp_initialized = tsk_false;
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err_status_t srtp_err;
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if(!__strp_initialized) {
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if((srtp_err = srtp_init()) != err_status_ok) {
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TSK_DEBUG_ERROR("srtp_init() failed with error code = %d", srtp_err);
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}
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__strp_initialized = (srtp_err == err_status_ok);
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}
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#endif
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if((manager = tsk_object_new(trtp_manager_def_t))) {
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manager->use_rtcp = use_rtcp;
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manager->local_ip = tsk_strdup(local_ip);
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manager->use_ipv6 = ipv6;
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#if HAVE_SRTP
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manager->srtp_type = srtp_type;
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manager->srtp_mode = srtp_mode;
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#endif
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manager->rtp.payload_type = 127;
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}
|
|
return manager;
|
|
}
|
|
|
|
static int _trtp_manager_recv_data(const trtp_manager_t* self, const uint8_t* data_ptr, tsk_size_t data_size, tnet_fd_t local_fd, const struct sockaddr_storage* remote_addr)
|
|
{
|
|
tsk_bool_t is_rtp_rtcp, is_rtcp = tsk_false, is_rtp = tsk_false, is_stun, is_dtls;
|
|
|
|
if (!self->is_started) {
|
|
TSK_DEBUG_INFO("RTP manager not started yet");
|
|
return 0;
|
|
}
|
|
|
|
// defined when RTCP-MUX is disabled and RTCP port is equal to "RTP Port + 1"
|
|
|
|
// rfc5764 - 5.1.2. Reception
|
|
// rfc5761 - 4. Distinguishable RTP and RTCP Packets
|
|
|
|
is_rtp_rtcp = (127 < *data_ptr && *data_ptr < 192);
|
|
if(is_rtp_rtcp) {
|
|
is_stun = is_dtls = tsk_false;
|
|
is_rtcp = (self->rtcp.local_socket && self->rtcp.local_socket->fd == local_fd);
|
|
if(!is_rtcp && data_size >= 2 && (data_ptr[1] & 0x80)) {
|
|
if(is_rtp_rtcp) {
|
|
switch((data_ptr[1] & 0x7F)) {
|
|
case 64:
|
|
case 65:
|
|
case 72:
|
|
case 73:
|
|
case 74:
|
|
case 75:
|
|
case 76:
|
|
case 77:
|
|
case 78:
|
|
case 79:
|
|
is_rtcp = tsk_true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
is_rtp = !is_rtcp;
|
|
}
|
|
else {
|
|
is_dtls = !is_rtp_rtcp && (19 < *data_ptr && *data_ptr < 64);
|
|
is_stun = !is_dtls && TNET_STUN_BUFF_IS_STUN2(data_ptr, data_size); /* MUST NOT USE: "(*data_ptr < 2)" beacause of "Old VAT" which starts with "0x00" */;
|
|
}
|
|
|
|
if(is_dtls) {
|
|
tnet_socket_t* socket = (self->transport && self->transport->master && self->transport->master->fd == local_fd)
|
|
? self->transport->master
|
|
: ((self->rtcp.local_socket && self->rtcp.local_socket->fd == local_fd) ? self->rtcp.local_socket : tsk_null);
|
|
if (socket && socket->dtlshandle) {
|
|
TSK_DEBUG_INFO("Receive %s-DTLS data on ip=%s and port=%d", (socket == self->transport->master) ? "RTP" : "RTCP", socket->ip, socket->port);
|
|
// Handle incoming data then do handshaking
|
|
tnet_dtls_socket_handle_incoming_data(socket->dtlshandle, data_ptr, data_size);
|
|
if (self->is_ice_turn_active) {
|
|
// means TURN is active and handshaking data must be sent using the channel
|
|
const void* data = tsk_null;
|
|
tsk_size_t size = 0;
|
|
if (tnet_transport_dtls_get_handshakingdata(self->transport, (const struct tnet_socket_s**)&socket, 1, &data, &size) == 0) {
|
|
if (data && size > 0) {
|
|
if (self->rtcp.local_socket == socket) {
|
|
/*ret = */_trtp_manager_send_turn_dtls_rtcp(self->ice_ctx, data, size);
|
|
}
|
|
else {
|
|
/*ret = */_trtp_manager_send_turn_dtls_rtp(self->ice_ctx, data, size);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if(is_stun) {
|
|
static tsk_bool_t role_conflict = tsk_false;
|
|
if(self->ice_ctx) {
|
|
return tnet_ice_ctx_recv_stun_message(self->ice_ctx, data_ptr, data_size, local_fd, remote_addr, &role_conflict);
|
|
}
|
|
return 0;
|
|
}
|
|
if(is_rtcp) {
|
|
if(!self->is_symetric_rtcp_checked && self->is_force_symetric_rtp) {
|
|
((trtp_manager_t*)self)->is_symetric_rtcp_checked = tsk_true;
|
|
if(!self->is_ice_neg_ok && remote_addr) { // do not force symetric RTCP is ICE negotiation succeed
|
|
TSK_DEBUG_INFO("Using symetric RTCP for [%s]:%d", self->rtcp.remote_ip, self->rtcp.remote_port);
|
|
((trtp_manager_t*)self)->rtcp.remote_addr = *remote_addr;
|
|
}
|
|
}
|
|
|
|
if(self->rtcp.session) {
|
|
#if HAVE_SRTP
|
|
err_status_t status;
|
|
if(self->srtp_ctx_neg_remote) {
|
|
srtp_t session = self->srtp_ctx_neg_remote->rtcp.initialized ? self->srtp_ctx_neg_remote->rtcp.session : self->srtp_ctx_neg_remote->rtp.session;
|
|
if((status = srtp_unprotect_rtcp(session, (void*)data_ptr, (int*)&data_size)) != err_status_ok) {
|
|
if (status == err_status_replay_fail) {
|
|
// replay (because of RTCP-NACK nothing to worry about)
|
|
TSK_DEBUG_INFO("srtp_unprotect(RTCP) returned 'err_status_replay_fail'");
|
|
return 0;
|
|
}
|
|
else {
|
|
TSK_DEBUG_ERROR("srtp_unprotect(RTCP) failed with error code=%d", (int)status);
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
return trtp_rtcp_session_process_rtcp_in(self->rtcp.session, data_ptr, data_size);
|
|
}
|
|
TSK_DEBUG_WARN("No RTCP session");
|
|
return 0;
|
|
}
|
|
if(is_rtp) {
|
|
if(!self->is_symetric_rtp_checked && self->is_force_symetric_rtp) {
|
|
((trtp_manager_t*)self)->is_symetric_rtp_checked = tsk_true;
|
|
if(!self->is_ice_neg_ok && remote_addr) { // do not force symetric RTP is ICE negotiation succeed
|
|
TSK_DEBUG_INFO("Using symetric RTP for [%s]:%d", self->rtp.remote_ip, self->rtp.remote_port);
|
|
((trtp_manager_t*)self)->rtp.remote_addr = *remote_addr;
|
|
}
|
|
}
|
|
|
|
if(self->rtp.cb.fun) {
|
|
trtp_rtp_packet_t* packet_rtp = tsk_null;
|
|
#if HAVE_SRTP
|
|
err_status_t status;
|
|
if(self->srtp_ctx_neg_remote) {
|
|
if((status = srtp_unprotect(self->srtp_ctx_neg_remote->rtp.session, (void*)data_ptr, (int*)&data_size)) != err_status_ok) {
|
|
if (status == err_status_replay_fail) {
|
|
// replay (because of RTCP-NACK nothing to worry about)
|
|
TSK_DEBUG_INFO("srtp_unprotect(RTP) returned 'err_status_replay_fail'");
|
|
return 0;
|
|
}
|
|
else {
|
|
TSK_DEBUG_ERROR("srtp_unprotect(RTP) failed with error code=%d, seq_num=%u", (int)status, (data_size > 4 ? tnet_ntohs_2(&data_ptr[2]) : 0x0000));
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if((packet_rtp = trtp_rtp_packet_deserialize(data_ptr, data_size))) {
|
|
// update remote SSRC based on received RTP packet
|
|
((trtp_manager_t*)self)->rtp.ssrc.remote = packet_rtp->header->ssrc;
|
|
// forward to the callback function (most likely "session_av")
|
|
self->rtp.cb.fun(self->rtp.cb.usrdata, packet_rtp);
|
|
// forward packet to the RTCP session
|
|
if(self->rtcp.session) {
|
|
trtp_rtcp_session_process_rtp_in(self->rtcp.session, packet_rtp, data_size);
|
|
}
|
|
TSK_OBJECT_SAFE_FREE(packet_rtp);
|
|
return 0;
|
|
}
|
|
else {
|
|
TSK_DEBUG_ERROR("RTP packet === NOK");
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
TSK_DEBUG_INFO("Received unknown packet type");
|
|
return 0;
|
|
}
|
|
|
|
// Sends DTLS handshaking data record by record to avoid UDP IP fragmentation issues (each record length will be < Length(MTU))
|
|
//!\ This is required even if the local transport is TCP/TLS because the relayed (TURN) transport could be UDP
|
|
static int _trtp_manager_send_turn_dtls(struct tnet_ice_ctx_s* ice_ctx, const void* handshaking_data_ptr, tsk_size_t handshaking_data_size, tsk_bool_t use_rtcp_channel)
|
|
{
|
|
const uint8_t *record_ptr, *records_ptr = handshaking_data_ptr;
|
|
tsk_size_t record_size;
|
|
int records_len = (int)handshaking_data_size, ret = 0;
|
|
int(*_ice_ctx_send_turn_data)(struct tnet_ice_ctx_s* self, const void* data, tsk_size_t size) = use_rtcp_channel ? tnet_ice_ctx_send_turn_rtcp : tnet_ice_ctx_send_turn_rtp;
|
|
if (!ice_ctx || !handshaking_data_ptr || !handshaking_data_size) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
while (records_len > 0 && (ret = tnet_dtls_socket_get_record_first(records_ptr, (tsk_size_t)records_len, &record_ptr, &record_size)) == 0) {
|
|
ret = _ice_ctx_send_turn_data(ice_ctx, record_ptr, record_size);
|
|
|
|
records_len -= (int)record_size;
|
|
records_ptr += record_size;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#if HAVE_SRTP
|
|
/*
|
|
Enables SDES-SRTP and DTLS-SRTP
|
|
Enabling SRTP will allow us to get "crypto" lines for negotiation
|
|
At this stage the sockets are not ready to send DTLS datagrams -> Good for ICE negotiation
|
|
If ICE is enabled DTLS-SRTP will not be enabled as the transport is "null"
|
|
*/
|
|
static int _trtp_manager_srtp_set_enabled(trtp_manager_t* self, tmedia_srtp_type_t srtp_type, struct tnet_socket_s** sockets, tsk_size_t count, tsk_bool_t enabled)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
if((self->srtp_mode == tmedia_srtp_mode_optional || self->srtp_mode == tmedia_srtp_mode_mandatory)) {
|
|
int ret;
|
|
if(enabled) {
|
|
if(srtp_type & tmedia_srtp_type_sdes) {
|
|
trtp_srtp_ctx_init(
|
|
&self->srtp_contexts[TRTP_SRTP_LINE_IDX_LOCAL][HMAC_SHA1_80],
|
|
1,
|
|
HMAC_SHA1_80,
|
|
self->rtp.ssrc.local
|
|
);
|
|
trtp_srtp_ctx_init(
|
|
&self->srtp_contexts[TRTP_SRTP_LINE_IDX_LOCAL][HMAC_SHA1_32],
|
|
2,
|
|
HMAC_SHA1_32,
|
|
self->rtp.ssrc.local
|
|
);
|
|
}
|
|
|
|
if(srtp_type & tmedia_srtp_type_dtls) {
|
|
/*
|
|
Enables DTLS on the transport without activating it on the sockets
|
|
Enabling DTLS will allow us to get the certificate fingerprints for negotiation
|
|
At this stage the sockets are not ready to send DTLS datagrams -> Good for ICE negotiation
|
|
*/
|
|
if(self->transport) {
|
|
if((ret = tnet_transport_dtls_set_enabled(self->transport, enabled, tsk_null, 0))) {
|
|
return ret;
|
|
}
|
|
if((ret = trtp_manager_set_dtls_certs(self, self->dtls.file_ca, self->dtls.file_pbk, self->dtls.file_pvk, self->dtls.cert_verif))) {
|
|
return ret;
|
|
}
|
|
self->dtls.state = trtp_srtp_state_enabled;
|
|
}
|
|
else {
|
|
self->dtls.enable_postponed = tsk_true;
|
|
}
|
|
}
|
|
self->srtp_state = trtp_srtp_state_enabled;
|
|
}
|
|
else {
|
|
if (srtp_type & tmedia_srtp_type_dtls) {
|
|
if (self->transport) {
|
|
ret = tnet_transport_dtls_set_enabled(self->transport, tsk_false, sockets, count);
|
|
}
|
|
self->dtls.state = trtp_srtp_state_none;
|
|
self->dtls.enable_postponed = tsk_false;
|
|
self->dtls.srtp_connected = self->dtls.srtp_handshake_succeed = tsk_false;
|
|
self->dtls.srtcp_connected = self->dtls.srtcp_handshake_succeed = tsk_false;
|
|
}
|
|
|
|
// SRTP context is used by both DTLS and SDES -> only destroy them if requested to be disabled on both
|
|
if((~srtp_type & self->srtp_type) == tmedia_srtp_type_none) {
|
|
trtp_srtp_ctx_deinit(&self->srtp_contexts[TRTP_SRTP_LINE_IDX_LOCAL][0]);
|
|
trtp_srtp_ctx_deinit(&self->srtp_contexts[TRTP_SRTP_LINE_IDX_LOCAL][1]);
|
|
self->srtp_ctx_neg_local = tsk_null;
|
|
self->srtp_ctx_neg_remote = tsk_null;
|
|
self->srtp_state = trtp_srtp_state_none;
|
|
// Reset SRTP session to the RTCP session manager
|
|
if (self->rtcp.session) {
|
|
trtp_rtcp_session_set_srtp_sess(self->rtcp.session, tsk_null);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int _trtp_manager_srtp_activate(trtp_manager_t* self, tmedia_srtp_type_t srtp_type)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
if(srtp_type != tmedia_srtp_type_none && (self->srtp_mode == tmedia_srtp_mode_optional || self->srtp_mode == tmedia_srtp_mode_mandatory)) {
|
|
int ret;
|
|
if(self->srtp_state < trtp_srtp_state_enabled) {
|
|
TSK_DEBUG_ERROR("SRTP engine not enabled yet");
|
|
return -2;
|
|
}
|
|
if((srtp_type & tmedia_srtp_type_dtls) && (self->dtls.state >= trtp_srtp_state_enabled || self->dtls.enable_postponed)) {
|
|
/*
|
|
Activates DTLS on the transport and on both RTP and RTCP sockets
|
|
At this stage the sockets are ready to send/recv DTLS datagrams
|
|
*/
|
|
struct tnet_socket_s* sockets[] = { self->transport->master , self->rtcp.local_socket };
|
|
const struct sockaddr_storage* remote_addrs[] = { &self->rtp.remote_addr, &self->rtcp.remote_addr };
|
|
tsk_bool_t store_handshakingdata[] = { self->is_ice_turn_active, self->is_ice_turn_active };
|
|
|
|
// check if DTLS-SRTP enabling was postponed because the net transport was not ready (could happen if ICE is ON)
|
|
if(self->dtls.enable_postponed) {
|
|
if ((ret = _trtp_manager_srtp_set_enabled(self, self->srtp_type, sockets, sizeof(sockets) / sizeof(sockets[0]), tsk_true))) {
|
|
return ret;
|
|
}
|
|
self->dtls.enable_postponed = tsk_false;
|
|
}
|
|
|
|
// activate "use_srtp" (rfc5764 section 4.1) on the transport
|
|
// this should be done before enabling DTLS sockets to be sure that newly created/enabled ones will use "use_srtp" extension
|
|
if((ret = tnet_transport_dtls_use_srtp(self->transport, "SRTP_AES128_CM_SHA1_80:SRTP_AES128_CM_SHA1_32", sockets, 2))) {
|
|
return ret;
|
|
}
|
|
// enabling DTLS on the sockets will create the "dtlshandle" field and change the type from UDP to DTLS
|
|
if((ret = tnet_transport_dtls_set_enabled(self->transport, tsk_true, sockets, 2))) {
|
|
return ret;
|
|
}
|
|
|
|
/* At this step the DTLS "dtlshandle" is created and the socket types changed from UDP to DTLS */
|
|
|
|
// pass the remote certificate fingerprint to both SRTP and SRTCP sockets
|
|
// the fingerprint will be verified if this option is enabled on the SSL context
|
|
// we'll be notified via the callback if there are fingerprint mismatch after the begining of the handshaking
|
|
if((ret = tnet_transport_dtls_set_remote_fingerprint(self->transport, &self->dtls.remote.fp, self->dtls.remote.fp_hash, sockets, 2))) {
|
|
return ret;
|
|
}
|
|
// setting the "setup" allow each DTLS socket to know if it's a client or server
|
|
// setup="active" means it's up to us to send the "DTLS client hello" message (otherwise "server hello" will be sent)
|
|
if((ret = tnet_transport_dtls_set_setup(self->transport, self->dtls.local.setup, sockets, 2))) {
|
|
return ret;
|
|
}
|
|
// whether to send DTLS handshaking data using the provided sockets or TURN session
|
|
if ((ret = tnet_transport_dtls_set_store_handshakingdata(self->transport, store_handshakingdata[0], sockets, 2))) {
|
|
return ret;
|
|
}
|
|
// start handshaking process (will do nothing if already completed)
|
|
if ((ret = tnet_transport_dtls_do_handshake(self->transport, sockets, 2, remote_addrs, 2))) {
|
|
return ret;
|
|
}
|
|
if (store_handshakingdata[0]) {
|
|
// means TURN is active and handshaking data must be sent using the channel
|
|
const void* data[] = { tsk_null, tsk_null };
|
|
tsk_size_t size[] = { 0, 0 };
|
|
if ((ret = tnet_transport_dtls_get_handshakingdata(self->transport, (const struct tnet_socket_s**)sockets, 2, data, size))) {
|
|
return ret;
|
|
}
|
|
if (data[0] && size[0]) {
|
|
ret = tnet_ice_ctx_send_turn_rtp(self->ice_ctx, data[0], size[0]);
|
|
}
|
|
if (data[1] && size[1]) {
|
|
ret = tnet_ice_ctx_send_turn_rtcp(self->ice_ctx, data[1], size[1]);
|
|
}
|
|
}
|
|
|
|
self->dtls.state = trtp_srtp_state_activated;
|
|
}
|
|
|
|
self->srtp_state = trtp_srtp_state_activated;
|
|
|
|
// SDES-SRTP could be started right now while DTLS requires the handshaking to terminate
|
|
if (srtp_type & tmedia_srtp_type_sdes) {
|
|
return _trtp_manager_srtp_start(self, self->srtp_type);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int _trtp_manager_srtp_start(trtp_manager_t* self, tmedia_srtp_type_t srtp_type)
|
|
{
|
|
const trtp_srtp_ctx_xt *ctx_remote, *ctx_local;
|
|
tsk_bool_t use_different_keys;
|
|
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
|
|
if(self->srtp_state < trtp_srtp_state_activated) {
|
|
TSK_DEBUG_ERROR("SRTP engine not activated yet");
|
|
return -2;
|
|
}
|
|
|
|
ctx_remote = self->srtp_contexts[TRTP_SRTP_LINE_IDX_REMOTE][HMAC_SHA1_80].rtp.initialized
|
|
? &self->srtp_contexts[TRTP_SRTP_LINE_IDX_REMOTE][HMAC_SHA1_80]
|
|
: &self->srtp_contexts[TRTP_SRTP_LINE_IDX_REMOTE][HMAC_SHA1_32];
|
|
|
|
// dtls uses different keys for rtp and srtp which is not the case for sdes
|
|
use_different_keys = !_trtp_manager_is_rtcpmux_active(self) && ((srtp_type & tmedia_srtp_type_dtls) == tmedia_srtp_type_dtls);
|
|
TSK_DEBUG_INFO("srtp_use_different_keys=%s", use_different_keys ? "true" : "false");
|
|
|
|
if(!ctx_remote->rtp.initialized || (use_different_keys && !ctx_remote->rtcp.initialized)) {
|
|
TSK_DEBUG_ERROR("SRTP remote context not initialized: Not expected at this state");
|
|
return -2;
|
|
}
|
|
|
|
// use same crypto type on both sides
|
|
ctx_local = &self->srtp_contexts[TRTP_SRTP_LINE_IDX_LOCAL][(int32_t)ctx_remote->rtp.crypto_type];
|
|
if(!ctx_local->rtp.initialized || (use_different_keys && !ctx_local->rtcp.initialized)) {
|
|
TSK_DEBUG_ERROR("SRTP local context not initialized: Not expected at this state");
|
|
return -2;
|
|
}
|
|
|
|
// update negotiated crypto contexts used to encrypt()/decrypt() SRTP data
|
|
self->srtp_ctx_neg_remote = ctx_remote;
|
|
self->srtp_ctx_neg_local = ctx_local;
|
|
|
|
self->srtp_state = trtp_srtp_state_started;
|
|
if(self->dtls.state >= trtp_srtp_state_activated) {
|
|
// this means the DTLS-SRTP is the active type intead of SDES
|
|
self->dtls.state = trtp_srtp_state_started;
|
|
}
|
|
|
|
// Pass SRTP session to the RTCP session manager
|
|
trtp_rtcp_session_set_srtp_sess(
|
|
self->rtcp.session,
|
|
self->srtp_ctx_neg_local ? (use_different_keys ? &self->srtp_ctx_neg_local->rtcp.session : &self->srtp_ctx_neg_local->rtp.session) : tsk_null
|
|
);
|
|
|
|
/* At this step we are able to encrypt()/decrypt() SRTP data */
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* HAVE_SRTP */
|
|
|
|
static int _trtp_manager_ice_init(trtp_manager_t* self)
|
|
{
|
|
int ret = 0;
|
|
const tnet_ice_candidate_t *candidate_offer, *candidate_answer_src, *candidate_answer_dest;
|
|
struct tnet_socket_s *rtp_socket = tsk_null;
|
|
|
|
if (!self || !self->ice_ctx) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
|
|
if (!self->transport) {
|
|
// get rtp nominated symetric candidates
|
|
ret = tnet_ice_ctx_get_nominated_symetric_candidates(self->ice_ctx, TNET_ICE_CANDIDATE_COMPID_RTP,
|
|
&candidate_offer, &candidate_answer_src, &candidate_answer_dest);
|
|
self->is_ice_neg_ok = (ret == 0 && candidate_offer && candidate_answer_src && candidate_answer_dest);
|
|
self->is_ice_turn_active = self->is_ice_neg_ok && tnet_ice_ctx_is_turn_rtp_active(self->ice_ctx);
|
|
if (!self->is_ice_neg_ok) {
|
|
// If this code is called this means that ICE negotiation has failed
|
|
// This is not really an error because it could happen if the remote peer is not an ICE agent or is an ICE-lite
|
|
// in this case, use the first offered candidate which is the best one and already used in the "c=" line
|
|
if (!(candidate_offer = tnet_ice_ctx_get_local_candidate_first(self->ice_ctx))) {
|
|
// Must never happen as we always have at least one local "host" candidate
|
|
TSK_DEBUG_ERROR("ICE context not ready");
|
|
ret = -3;
|
|
goto bail;
|
|
}
|
|
}
|
|
|
|
// Get RTP socket
|
|
if (self->is_ice_turn_active && candidate_offer->turn.ss) {
|
|
if ((ret = tnet_turn_session_get_socket_local(candidate_offer->turn.ss, &rtp_socket))) {
|
|
goto bail;
|
|
}
|
|
}
|
|
else {
|
|
rtp_socket = tsk_object_ref(candidate_offer->socket);
|
|
}
|
|
|
|
// create transport
|
|
if (!(self->transport = tnet_transport_create_2(rtp_socket, TRTP_TRANSPORT_NAME))) {
|
|
TSK_DEBUG_ERROR("Failed to create transport(%s:%u)", rtp_socket->ip, rtp_socket->port);
|
|
ret = -4;
|
|
goto bail;
|
|
}
|
|
// set rtp local and remote IPs and ports
|
|
if (candidate_answer_dest) { // could be "null" if remote peer is ICE-lite
|
|
tsk_strupdate(&self->rtp.remote_ip, candidate_answer_dest->connection_addr);
|
|
self->rtp.remote_port = candidate_answer_dest->port;
|
|
tsk_strupdate(&self->rtp.public_addr.ip, candidate_offer->connection_addr);
|
|
self->rtp.public_addr.port = candidate_offer->port;
|
|
}
|
|
|
|
// get rtp nominated symetric candidates
|
|
if (self->use_rtcp) {
|
|
ret = tnet_ice_ctx_get_nominated_symetric_candidates(self->ice_ctx, TNET_ICE_CANDIDATE_COMPID_RTCP,
|
|
&candidate_offer, &candidate_answer_src, &candidate_answer_dest);
|
|
if (ret == 0 && candidate_offer && candidate_answer_src && candidate_answer_dest) {
|
|
// set rtp local and remote IPs and ports
|
|
tsk_strupdate(&self->rtcp.remote_ip, candidate_answer_dest->connection_addr);
|
|
self->rtcp.remote_port = candidate_answer_dest->port;
|
|
tsk_strupdate(&self->rtcp.public_addr.ip, candidate_offer->connection_addr);
|
|
self->rtcp.public_addr.port = candidate_offer->port;
|
|
TSK_OBJECT_SAFE_FREE(self->rtcp.local_socket);
|
|
// Get RTCP socket
|
|
if (self->is_ice_turn_active && candidate_offer->turn.ss) {
|
|
ret = tnet_turn_session_get_socket_local(candidate_offer->turn.ss, &self->rtcp.local_socket);
|
|
if (ret) {
|
|
goto bail;
|
|
}
|
|
}
|
|
else {
|
|
self->rtcp.local_socket = tsk_object_ref(candidate_offer->socket);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// set callback functions
|
|
ret = tnet_transport_set_callback(self->transport, _trtp_transport_layer_cb, self); // NetTransport -> RtpManager
|
|
ret = tnet_ice_ctx_rtp_callback(self->ice_ctx, (tnet_ice_rtp_callback_f)_trtp_manager_recv_data, self); // ICE -> RtpManager
|
|
|
|
bail:
|
|
TSK_OBJECT_SAFE_FREE(rtp_socket);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/** Create RTP/RTCP manager */
|
|
trtp_manager_t* trtp_manager_create(tsk_bool_t use_rtcp, const char* local_ip, tsk_bool_t ipv6, tmedia_srtp_type_t srtp_type, tmedia_srtp_mode_t srtp_mode)
|
|
{
|
|
trtp_manager_t* manager;
|
|
if((manager = _trtp_manager_create(use_rtcp, local_ip, ipv6, srtp_type, srtp_mode))) {
|
|
}
|
|
return manager;
|
|
}
|
|
|
|
/** Create RTP/RTCP manager */
|
|
trtp_manager_t* trtp_manager_create_2(struct tnet_ice_ctx_s* ice_ctx, tmedia_srtp_type_t srtp_type, tmedia_srtp_mode_t srtp_mode)
|
|
{
|
|
trtp_manager_t* manager;
|
|
const char* local_ip;
|
|
tsk_bool_t use_ipv6, use_rtcp;
|
|
|
|
if(!ice_ctx) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return tsk_null;
|
|
}
|
|
|
|
local_ip = (use_ipv6 = tnet_ice_ctx_use_ipv6(ice_ctx)) ? "::1" : "127.0.0.1";
|
|
use_rtcp = tnet_ice_ctx_use_rtcp(ice_ctx);
|
|
|
|
if((manager = _trtp_manager_create(use_rtcp, local_ip, use_ipv6, srtp_type, srtp_mode))) {
|
|
manager->ice_ctx = tsk_object_ref(ice_ctx);
|
|
}
|
|
return manager;
|
|
}
|
|
|
|
int trtp_manager_set_ice_ctx(trtp_manager_t* self, struct tnet_ice_ctx_s* ice_ctx)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid ICE context");
|
|
return -1;
|
|
}
|
|
TSK_OBJECT_SAFE_FREE(self->ice_ctx);
|
|
self->ice_ctx = tsk_object_ref(ice_ctx);
|
|
return 0;
|
|
}
|
|
|
|
/** Prepares the RTP/RTCP manager */
|
|
int trtp_manager_prepare(trtp_manager_t* self)
|
|
{
|
|
const char *rtp_local_ip = tsk_null, *rtcp_local_ip = tsk_null;
|
|
tnet_port_t rtp_local_port = 0, rtcp_local_port = 0;
|
|
tnet_socket_type_t socket_type = self->use_ipv6 ? tnet_socket_type_udp_ipv6 : tnet_socket_type_udp_ipv4;
|
|
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
if(self->transport) {
|
|
TSK_DEBUG_ERROR("RTP/RTCP manager already prepared");
|
|
return -2;
|
|
}
|
|
|
|
if(self->ice_ctx) {
|
|
TSK_DEBUG_INFO("ICE enabled on RTP manager");
|
|
// Get Sockets when the transport is started
|
|
rtp_local_ip = rtcp_local_ip = self->use_ipv6 ? "::1" : "127.0.0.1";
|
|
rtp_local_port = 2; // ICE default rtp port, do not use zero which is reserved to disabled medias
|
|
rtcp_local_port = 1; // ICE default rtcp port, do not use zero which is reserved to disabled medias
|
|
}
|
|
else {
|
|
#define __retry_count_max 5
|
|
#define __retry_count_max_minus1 (__retry_count_max - 1)
|
|
uint8_t retry_count = __retry_count_max;
|
|
tnet_socket_type_t socket_type = tnet_socket_type_invalid;
|
|
|
|
// If local IP is defined then check its address family
|
|
if (!tsk_strempty(self->local_ip)) {
|
|
socket_type = tnet_get_type(self->local_ip, rtp_local_port); // IP @ always returns IPv4Only or IPv6Only
|
|
}
|
|
|
|
/* Creates local rtp and rtcp sockets */
|
|
while(retry_count--) {
|
|
/* random number in the range 1024 to 65535 */
|
|
static int counter = 0;
|
|
#if 0
|
|
tnet_port_t local_port = 6060;
|
|
#else
|
|
// first check => try to use port from latest active session if exist
|
|
tnet_port_t local_port = (retry_count == __retry_count_max_minus1 && (self->port_range.start <= self->rtp.public_addr.port && self->rtp.public_addr.port <= self->port_range.stop))
|
|
? self->rtp.public_addr.port
|
|
: (((rand() ^ ++counter) % (self->port_range.stop - self->port_range.start)) + self->port_range.start);
|
|
#endif
|
|
local_port = (local_port & 0xFFFE); /* turn to even number */
|
|
|
|
/* beacuse failure will cause errors in the log, print a message to alert that there is
|
|
* nothing to worry about */
|
|
TSK_DEBUG_INFO("RTP/RTCP manager[Begin]: Trying to bind to random ports");
|
|
|
|
/* RTP */
|
|
if(!(self->transport = tnet_transport_create(self->local_ip, local_port, socket_type, TRTP_TRANSPORT_NAME))) {
|
|
TSK_DEBUG_ERROR("Failed to create RTP/RTCP Transport");
|
|
return -3;
|
|
}
|
|
|
|
/* RTCP */
|
|
if (self->use_rtcp) {
|
|
if(!(self->rtcp.local_socket = tnet_socket_create(self->local_ip, local_port+1, socket_type))) {
|
|
TSK_DEBUG_WARN("Failed to bind to %d", local_port+1);
|
|
TSK_OBJECT_SAFE_FREE(self->transport);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
TSK_DEBUG_INFO("RTP/RTCP manager[End]: Trying to bind to random ports");
|
|
break;
|
|
}// end-of-while(retry_count)
|
|
|
|
rtp_local_ip = self->transport->master->ip;
|
|
rtp_local_port = self->transport->master->port;
|
|
if(self->rtcp.local_socket) {
|
|
rtcp_local_ip = self->rtcp.local_socket->ip;
|
|
rtcp_local_port = self->rtcp.local_socket->port;
|
|
|
|
}
|
|
}// end-of-else(!ice)
|
|
|
|
tsk_strupdate(&self->rtp.public_addr.ip, rtp_local_ip);
|
|
self->rtp.public_addr.port = rtp_local_port;
|
|
self->rtp.public_addr.type = socket_type;
|
|
|
|
tsk_strupdate(&self->rtcp.public_addr.ip, rtcp_local_ip);
|
|
self->rtcp.public_addr.port = rtcp_local_port;
|
|
self->rtcp.public_addr.type = socket_type;
|
|
|
|
if(self->transport) {
|
|
/* set callback function */
|
|
tnet_transport_set_callback(self->transport, _trtp_transport_layer_cb, self);
|
|
/* Disable receiving until we start the transport (To avoid buffering) */
|
|
#if TRTP_DISABLE_SOCKETS_BEFORE_START
|
|
if(!self->socket_disabled) {
|
|
int err, optval = TRTP_TINY_RCVBUF;
|
|
if((err = setsockopt(self->transport->master->fd, SOL_SOCKET, SO_RCVBUF, (char*)&optval, sizeof(optval)))) {
|
|
TNET_PRINT_LAST_ERROR("setsockopt(SOL_SOCKET, SO_RCVBUF) has failed with error code %d", err);
|
|
}
|
|
self->socket_disabled = (err == 0);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* SRTP */
|
|
#if HAVE_SRTP
|
|
{
|
|
// enable SRTP to allow negotiation
|
|
if (self->srtp_type != tmedia_srtp_mode_none) {
|
|
struct tnet_socket_s* sockets[] = { self->transport ? self->transport->master : tsk_null, self->rtcp.local_socket };
|
|
_trtp_manager_srtp_set_enabled(self, self->srtp_type, sockets, sizeof(sockets)/sizeof(sockets[0]), tsk_true);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if HAVE_SRTP
|
|
|
|
int trtp_manager_set_dtls_certs(trtp_manager_t* self, const char* ca, const char* pbk, const char* pvk, tsk_bool_t verify)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
// always save certificates even if not DTLS-SRTP transport
|
|
tsk_strupdate(&self->dtls.file_ca, ca);
|
|
tsk_strupdate(&self->dtls.file_pbk, pbk);
|
|
tsk_strupdate(&self->dtls.file_pvk, pvk);
|
|
self->dtls.cert_verif = verify;
|
|
|
|
if((self->srtp_type & tmedia_srtp_type_dtls) && (self->srtp_mode == tmedia_srtp_mode_optional || self->srtp_mode == tmedia_srtp_mode_mandatory)) {
|
|
if(self->transport && tnet_transport_dtls_is_enabled(self->transport)) {
|
|
return tnet_transport_dtls_srtp_set_certs(self->transport, self->dtls.file_ca, self->dtls.file_pbk, self->dtls.file_pvk, self->dtls.cert_verif);
|
|
}
|
|
}
|
|
else {
|
|
TSK_DEBUG_ERROR("DTLS certificates setting ignored for non-DTLS-SRTP transport");
|
|
return -2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int trtp_manager_set_dtls_callback(trtp_manager_t* self, const void* usrdata, trtp_srtp_dtls_cb_f fun)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
self->dtls.cb.usrdata = usrdata;
|
|
self->dtls.cb.fun = fun;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int trtp_manager_set_dtls_remote_fingerprint(trtp_manager_t* self, const tnet_fingerprint_t* fp, const char* fp_hash)
|
|
{
|
|
tnet_dtls_hash_type_t hash;
|
|
if(!self || !fp || !fp_hash) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
|
|
hash = tnet_dtls_get_hash_from_string(fp_hash);
|
|
if(hash != tnet_dtls_hash_type_sha1 && hash != tnet_dtls_hash_type_sha256) {
|
|
TSK_DEBUG_ERROR("%s not supported as fingerprint hash", fp_hash);
|
|
return -2;
|
|
}
|
|
self->dtls.remote.fp_hash = hash;
|
|
memcpy(self->dtls.remote.fp, &(*fp)[0], sizeof(tnet_fingerprint_t));
|
|
return 0;
|
|
}
|
|
|
|
enum tnet_dtls_hash_type_e trtp_manager_get_dtls_remote_fingerprint_hash(trtp_manager_t* self)
|
|
{
|
|
return (self ? self->dtls.remote.fp_hash : tnet_dtls_hash_type_none);
|
|
}
|
|
|
|
int trtp_manager_set_dtls_local_setup(trtp_manager_t* self, tnet_dtls_setup_t setup, tsk_bool_t connection_new)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
self->dtls.local.setup = setup;
|
|
self->dtls.local.connection_new = connection_new;
|
|
return 0;
|
|
}
|
|
|
|
const char* trtp_manager_get_dtls_local_fingerprint(trtp_manager_t* self, enum tnet_dtls_hash_type_e hash)
|
|
{
|
|
if(!self || (int32_t)hash < 0 || (int32_t)hash >= TNET_DTLS_HASH_TYPE_MAX) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return tsk_null;
|
|
}
|
|
if(!self->transport && self->dtls.file_pbk) {
|
|
static tnet_fingerprint_t fingerprint[TNET_DTLS_HASH_TYPE_MAX];
|
|
if(tnet_dtls_get_fingerprint(self->dtls.file_pbk, &fingerprint[hash], hash) == 0) {
|
|
return (const char*)fingerprint[hash];
|
|
}
|
|
}
|
|
return tnet_transport_dtls_get_local_fingerprint(self->transport, hash);
|
|
}
|
|
|
|
tsk_bool_t trtp_manager_is_dtls_enabled(trtp_manager_t* self)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return tsk_false;
|
|
}
|
|
return (self->dtls.state >= trtp_srtp_state_enabled);
|
|
}
|
|
|
|
tsk_bool_t trtp_manager_is_dtls_activated(trtp_manager_t* self)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return tsk_false;
|
|
}
|
|
return (self->dtls.state >= trtp_srtp_state_activated);
|
|
}
|
|
|
|
tsk_bool_t trtp_manager_is_dtls_started(trtp_manager_t* self)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return tsk_false;
|
|
}
|
|
return (self->dtls.state >= trtp_srtp_state_started);
|
|
}
|
|
|
|
tsk_bool_t trtp_manager_is_srtp_activated(trtp_manager_t* self)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return tsk_false;
|
|
}
|
|
return (self->srtp_state >= trtp_srtp_state_activated);
|
|
}
|
|
|
|
tsk_bool_t trtp_manager_is_srtp_started(trtp_manager_t* self)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return tsk_false;
|
|
}
|
|
return (self->srtp_state >= trtp_srtp_state_started);
|
|
}
|
|
|
|
/** Sets SRTP type used by the remote party */
|
|
int trtp_manager_set_srtp_type_remote(trtp_manager_t* self, tmedia_srtp_type_t srtp_type_remote)
|
|
{
|
|
tsk_size_t i;
|
|
int ret;
|
|
|
|
if (!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
|
|
for(i = 0; i < sizeof(__srtp_types)/sizeof(__srtp_types[i]); ++i) {
|
|
if ((self->srtp_type & __srtp_types[i]) && !(srtp_type_remote & __srtp_types[i])) {
|
|
struct tnet_socket_s* sockets[] = { self->transport ? self->transport->master : tsk_null, self->rtcp.local_socket };
|
|
if ((ret = _trtp_manager_srtp_set_enabled(self, __srtp_types[i], sockets, sizeof(sockets) / sizeof(sockets[0]), tsk_false))) {
|
|
return ret;
|
|
}
|
|
self->srtp_type &= ~__srtp_types[i];
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int trtp_manager_set_srtp_type_local(trtp_manager_t* self, enum tmedia_srtp_type_e srtp_type, enum tmedia_srtp_mode_e srtp_mode)
|
|
{
|
|
if (!self) {
|
|
TSK_DEBUG_ERROR("Invalid ICE context");
|
|
return -1;
|
|
}
|
|
if (srtp_mode == tmedia_srtp_mode_none || srtp_type == tmedia_srtp_type_none) {
|
|
struct tnet_socket_s* sockets[] = { self->transport ? self->transport->master : tsk_null, self->rtcp.local_socket };
|
|
_trtp_manager_srtp_set_enabled(self, self->srtp_type, sockets, sizeof(sockets) / sizeof(sockets[0]), tsk_false);
|
|
self->srtp_type = srtp_type;
|
|
self->srtp_mode = srtp_mode;
|
|
return 0;
|
|
}
|
|
|
|
self->srtp_mode = srtp_mode;
|
|
return trtp_manager_set_srtp_type_remote(self, srtp_type);
|
|
}
|
|
|
|
#endif /* HAVE_SRTP */
|
|
|
|
/** Indicates whether the manager is already ready or not */
|
|
tsk_bool_t trtp_manager_is_ready(trtp_manager_t* self)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return tsk_false;
|
|
}
|
|
return (self->transport != tsk_null);
|
|
}
|
|
|
|
/** Sets NAT Traversal context */
|
|
int trtp_manager_set_natt_ctx(trtp_manager_t* self, struct tnet_nat_ctx_s* natt_ctx)
|
|
{
|
|
int ret;
|
|
|
|
if(!self || !self->transport || !natt_ctx) {
|
|
if(self && self->ice_ctx) {
|
|
return 0; // Nat context is not needed when ICE is enabled
|
|
}
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
if(!(ret = tnet_transport_set_natt_ctx(self->transport, natt_ctx))) {
|
|
tnet_ip_t public_ip = {0};
|
|
tnet_port_t public_port = 0;
|
|
// get RTP public IP and Port
|
|
if(!tnet_transport_get_public_ip_n_port(self->transport, self->transport->master->fd, &public_ip, &public_port)) {
|
|
tsk_strupdate(&self->rtp.public_addr.ip, public_ip);
|
|
self->rtp.public_addr.port = public_port;
|
|
}
|
|
// get RTCP public IP and Port
|
|
memset(public_ip, 0, sizeof(public_ip));
|
|
public_port = 0;
|
|
if(self->rtcp.local_socket && !tnet_transport_get_public_ip_n_port(self->transport, self->rtcp.local_socket->fd, &public_ip, &public_port)) {
|
|
tsk_strupdate(&self->rtcp.public_addr.ip, public_ip);
|
|
self->rtcp.public_addr.port = public_port;
|
|
}
|
|
// re-enable sockets to be able to receive STUN packets
|
|
#if 0
|
|
_trtp_manager_enable_sockets(self);
|
|
#endif
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/** Sets RTP callback */
|
|
int trtp_manager_set_rtp_callback(trtp_manager_t* self, trtp_rtp_cb_f fun, const void* usrdata)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
|
|
self->rtp.cb.fun = fun;
|
|
self->rtp.cb.usrdata = usrdata;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** Sets RTCP callback */
|
|
int trtp_manager_set_rtcp_callback(trtp_manager_t* self, trtp_rtcp_cb_f fun, const void* usrdata)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
|
|
self->rtcp.cb.fun = fun;
|
|
self->rtcp.cb.usrdata = usrdata;
|
|
if(self->rtcp.session) {
|
|
return trtp_rtcp_session_set_callback(self->rtcp.session, fun, usrdata);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** Sets the payload type */
|
|
int trtp_manager_set_payload_type(trtp_manager_t* self, uint8_t payload_type)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
self->rtp.payload_type = payload_type;
|
|
return 0;
|
|
}
|
|
|
|
int trtp_manager_set_rtp_dscp(trtp_manager_t* self, int32_t dscp)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
self->rtp.dscp = dscp;
|
|
return 0;
|
|
}
|
|
|
|
/** Sets remote parameters for rtp session */
|
|
int trtp_manager_set_rtp_remote(trtp_manager_t* self, const char* remote_ip, tnet_port_t remote_port)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
// if ICE is enabled then, these values will be updated when the manager start()s and call ice_init()
|
|
tsk_strupdate(&self->rtp.remote_ip, remote_ip);
|
|
self->rtp.remote_port = remote_port;
|
|
return 0;
|
|
}
|
|
|
|
/** Sets remote parameters for rtcp session */
|
|
int trtp_manager_set_rtcp_remote(trtp_manager_t* self, const char* remote_ip, tnet_port_t remote_port)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
if(self->ice_ctx) {
|
|
TSK_DEBUG_WARN("Manually setting RTCP remote IP and Port while ICE is enabled");
|
|
}
|
|
tsk_strupdate(&self->rtcp.remote_ip, remote_ip);
|
|
self->rtcp.remote_port = remote_port;
|
|
return 0;
|
|
}
|
|
|
|
int trtp_manager_set_port_range(trtp_manager_t* self, uint16_t start, uint16_t stop)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
self->port_range.start = start;
|
|
self->port_range.stop = stop;
|
|
return 0;
|
|
}
|
|
|
|
int trtp_manager_set_rtcweb_type_remote(trtp_manager_t* self, tmedia_rtcweb_type_t rtcweb_type)
|
|
{
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
self->rtcweb_type.remote = rtcweb_type;
|
|
return 0;
|
|
}
|
|
|
|
int trtp_manager_set_proxy_auto_detect(trtp_manager_t* self, tsk_bool_t auto_detect)
|
|
{
|
|
if (!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
self->proxy.auto_detect = auto_detect;
|
|
return 0;
|
|
}
|
|
|
|
int trtp_manager_set_proxy_info(trtp_manager_t* self, enum tnet_proxy_type_e type, const char* host, tnet_port_t port, const char* login, const char* password)
|
|
{
|
|
if (!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
if (!self->proxy.info && !(self->proxy.info = tnet_proxyinfo_create())) {
|
|
return -2;
|
|
}
|
|
self->proxy.info->type = type;
|
|
self->proxy.info->port = port;
|
|
tsk_strupdate(&self->proxy.info->hostname, host);
|
|
tsk_strupdate(&self->proxy.info->username, login);
|
|
tsk_strupdate(&self->proxy.info->password, password);
|
|
return 0;
|
|
}
|
|
|
|
/** Starts the RTP/RTCP manager */
|
|
int trtp_manager_start(trtp_manager_t* self)
|
|
{
|
|
int ret = 0;
|
|
int rcv_buf = (int)tmedia_defaults_get_rtpbuff_size();
|
|
int snd_buf = (int)tmedia_defaults_get_rtpbuff_size();
|
|
#if !TRTP_UNDER_WINDOWS_CE
|
|
int32_t dscp_rtp;
|
|
#endif
|
|
|
|
if(!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
|
|
tsk_safeobj_lock(self);
|
|
|
|
if (self->is_started) {
|
|
goto bail;
|
|
}
|
|
|
|
// Initialize transport with ICE context
|
|
if (self->ice_ctx && (ret = _trtp_manager_ice_init(self)) != 0) {
|
|
TSK_DEBUG_ERROR("_trtp_manager_ice_init() failed");
|
|
goto bail;
|
|
}
|
|
|
|
if(!self->transport && (ret = trtp_manager_prepare(self))) {
|
|
TSK_DEBUG_ERROR("Failed to prepare RTP/RTCP mamanger");
|
|
goto bail;
|
|
}
|
|
|
|
if(!self->transport || !self->transport->master) {
|
|
TSK_DEBUG_ERROR("RTP/RTCP manager not prepared");
|
|
ret = -2;
|
|
goto bail;
|
|
}
|
|
|
|
/* Proxy */
|
|
// Proxy info
|
|
if ((ret = tnet_transport_set_proxy_auto_detect(self->transport, self->proxy.auto_detect))) {
|
|
TSK_DEBUG_ERROR("Failed to set proxy autodetect option");
|
|
goto bail;
|
|
}
|
|
if (self->proxy.info) {
|
|
if ((ret = tnet_transport_set_proxy_info(self->transport, self->proxy.info->type, self->proxy.info->hostname, self->proxy.info->port, self->proxy.info->username, self->proxy.info->password))) {
|
|
TSK_DEBUG_ERROR("Failed to set proxy info");
|
|
goto bail;
|
|
}
|
|
}
|
|
|
|
/* Flush buffers and re-enable sockets */
|
|
if(self->transport->master && self->is_socket_disabled) {
|
|
static char buff[1024];
|
|
tsk_size_t guard_count = 0;
|
|
#if 0
|
|
// re-enable sockets
|
|
_trtp_manager_enable_sockets(self);
|
|
#endif
|
|
|
|
TSK_DEBUG_INFO("Start flushing RTP socket...");
|
|
// Buffer should be empty ...but who know?
|
|
// rcv() should never block() as we are always using non-blocking sockets
|
|
while ((ret = (int)recv(self->transport->master->fd, buff, sizeof(buff), 0)) > 0 && ++guard_count < 0xF0) {
|
|
TSK_DEBUG_INFO("Flushing RTP Buffer %d", ret);
|
|
}
|
|
TSK_DEBUG_INFO("End flushing RTP socket");
|
|
}
|
|
|
|
/* enlarge socket buffer */
|
|
#if !TRTP_UNDER_WINDOWS_CE
|
|
TSK_DEBUG_INFO("SO_RCVBUF = %d, SO_SNDBUF = %d", rcv_buf, snd_buf);
|
|
if ((ret = setsockopt(self->transport->master->fd, SOL_SOCKET, SO_RCVBUF, (char*)&rcv_buf, sizeof(rcv_buf)))) {
|
|
TNET_PRINT_LAST_ERROR("setsockopt(SOL_SOCKET, SO_RCVBUF, %d) has failed with error code %d", rcv_buf, ret);
|
|
}
|
|
if ((ret = setsockopt(self->transport->master->fd, SOL_SOCKET, SO_SNDBUF, (char*)&snd_buf, sizeof(snd_buf)))) {
|
|
TNET_PRINT_LAST_ERROR("setsockopt(SOL_SOCKET, SO_SNDBUF, %d) has failed with error code %d", snd_buf, ret);
|
|
}
|
|
dscp_rtp = (self->rtp.dscp << 2);
|
|
if ((ret = setsockopt(self->transport->master->fd, IPPROTO_IP, IP_TOS, (char*)&dscp_rtp, sizeof(dscp_rtp)))) {
|
|
TNET_PRINT_LAST_ERROR("setsockopt(IPPROTO_IP, IP_TOS) has failed with error code %d", ret);
|
|
}
|
|
#endif /* !TRTP_UNDER_WINDOWS_CE */
|
|
|
|
/* RTP */
|
|
|
|
// check remote IP address validity
|
|
if((tsk_striequals(self->rtp.remote_ip, "0.0.0.0") || tsk_striequals(self->rtp.remote_ip, "::"))) { // most likely loopback testing
|
|
tnet_ip_t source = {0};
|
|
tsk_bool_t updated = tsk_false;
|
|
if(self->transport && self->transport->master) {
|
|
updated = (tnet_getbestsource(self->transport->master->ip, self->transport->master->port, self->transport->master->type, &source) == 0);
|
|
}
|
|
// Not allowed to send data to "0.0.0.0"
|
|
TSK_DEBUG_INFO("RTP remote IP contains not allowed value ...changing to '%s'", updated ? source : "oops");
|
|
if(updated) {
|
|
tsk_strupdate(&self->rtp.remote_ip, source);
|
|
}
|
|
}
|
|
if((ret = tnet_sockaddr_init(self->rtp.remote_ip, self->rtp.remote_port, self->transport->master->type, &self->rtp.remote_addr))) {
|
|
tnet_transport_shutdown(self->transport);
|
|
TSK_OBJECT_SAFE_FREE(self->transport);
|
|
TSK_DEBUG_ERROR("Invalid RTP host:port [%s:%u]", self->rtp.remote_ip, self->rtp.remote_port);
|
|
goto bail;
|
|
}
|
|
TSK_DEBUG_INFO("rtp.remote_ip=%s, rtp.remote_port=%d, rtp.local_fd=%d", self->rtp.remote_ip, self->rtp.remote_port, self->transport->master->fd);
|
|
|
|
/* RTCP */
|
|
if(self->use_rtcp) {
|
|
tnet_fd_t local_rtcp_fd = self->rtcp.local_socket ? self->rtcp.local_socket->fd : -1;
|
|
if(local_rtcp_fd < 0 || self->use_rtcpmux) { // use RTP local port to send RTCP packets
|
|
local_rtcp_fd = self->transport->master->fd;
|
|
}
|
|
|
|
if(!self->rtcp.remote_ip) {
|
|
self->rtcp.remote_ip = tsk_strdup(self->rtcp.remote_ip ? self->rtcp.remote_ip : self->rtp.remote_ip);
|
|
}
|
|
if(!self->rtcp.remote_port) {
|
|
self->rtcp.remote_port = self->rtcp.remote_port ? self->rtcp.remote_port : (self->use_rtcpmux ? self->rtp.remote_port : (self->rtp.remote_port + 1));
|
|
}
|
|
|
|
TSK_DEBUG_INFO("rtcp.remote_ip=%s, rtcp.remote_port=%d, rtcp.local_fd=%d", self->rtcp.remote_ip, self->rtcp.remote_port, local_rtcp_fd);
|
|
if((ret = tnet_sockaddr_init(self->rtcp.remote_ip, self->rtcp.remote_port, self->transport->master->type, &self->rtcp.remote_addr))) {
|
|
TSK_DEBUG_ERROR("Invalid RTCP host:port [%s:%u]", self->rtcp.remote_ip, self->rtcp.remote_port);
|
|
/* do not exit */
|
|
}
|
|
|
|
/* add RTCP socket to the transport */
|
|
if(self->rtcp.local_socket) {
|
|
TSK_DEBUG_INFO("rtcp.local_ip=%s, rtcp.local_port=%d, rtcp.local_fd=%d", self->rtcp.local_socket->ip, self->rtcp.local_socket->port, self->rtcp.local_socket->fd);
|
|
if(ret == 0 && (ret = tnet_transport_add_socket(self->transport, self->rtcp.local_socket->fd, self->rtcp.local_socket->type, tsk_false/* do not take ownership */, tsk_true/* only Meaningful for tls*/, tsk_null))) {
|
|
TSK_DEBUG_ERROR("Failed to add RTCP socket");
|
|
/* do not exit */
|
|
}
|
|
}
|
|
/* create and start RTCP session */
|
|
if(!self->rtcp.session && ret == 0) {
|
|
self->rtcp.session = trtp_rtcp_session_create_2(self->ice_ctx, self->rtp.ssrc.local, self->rtcp.cname);
|
|
}
|
|
if(self->rtcp.session) {
|
|
ret = trtp_rtcp_session_set_callback(self->rtcp.session, self->rtcp.cb.fun, self->rtcp.cb.usrdata);
|
|
ret = trtp_rtcp_session_set_app_bw_and_jcng(self->rtcp.session, self->app_bw_max_upload, self->app_bw_max_download, self->app_jitter_cng);
|
|
ret = trtp_rtcp_session_set_net_transport(self->rtcp.session, self->transport);
|
|
if((ret = trtp_rtcp_session_start(self->rtcp.session, local_rtcp_fd, (const struct sockaddr *)&self->rtcp.remote_addr))) {
|
|
TSK_DEBUG_ERROR("Failed to start RTCP session");
|
|
goto bail;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*SRTP*/
|
|
#if HAVE_SRTP
|
|
{
|
|
// activate SRTP (nothing will be done is srtp_mode is # "optional/mandatory")
|
|
// will also start the manager if we're using SDES mode
|
|
if((ret = _trtp_manager_srtp_activate(self, self->srtp_type))) {
|
|
goto bail;
|
|
}
|
|
|
|
/* DTLS handshaking Timer */
|
|
if (self->timer_mgr_global && self->srtp_state == trtp_srtp_state_activated && (self->srtp_type & tmedia_srtp_type_dtls) == tmedia_srtp_type_dtls) {
|
|
ret = tsk_timer_manager_start(self->timer_mgr_global);
|
|
self->dtls.timer_hanshaking.timeout = TRTP_DTLS_HANDSHAKING_TIMEOUT;
|
|
// start handshaking timer
|
|
// never mind if net work transport not started yet: the DTLS sockets will send the handshaking data by themself
|
|
self->dtls.timer_hanshaking.id = tsk_timer_manager_schedule(self->timer_mgr_global, self->dtls.timer_hanshaking.timeout, _trtp_transport_dtls_handshaking_timer_cb, self);
|
|
}
|
|
}
|
|
#endif /* HAVE_SRTP */
|
|
|
|
|
|
/* start the transport if TURN is not active (otherwise TURN data will be received directly on RTP manager with channel headers) */
|
|
if (!self->is_ice_turn_active && (ret = tnet_transport_start(self->transport))) {
|
|
TSK_DEBUG_ERROR("Failed to start the RTP/RTCP transport");
|
|
goto bail;
|
|
}
|
|
|
|
self->is_started = tsk_true;
|
|
|
|
bail:
|
|
|
|
tsk_safeobj_unlock(self);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Encapsulate raw data into RTP packet and send it over the network
|
|
* Very IMPORTANT: For voice packets, the marker bits indicates the beginning of a talkspurt */
|
|
tsk_size_t trtp_manager_send_rtp(trtp_manager_t* self, const void* data, tsk_size_t size, uint32_t duration, tsk_bool_t marker, tsk_bool_t last_packet)
|
|
{
|
|
trtp_rtp_packet_t* packet;
|
|
tsk_size_t ret;
|
|
|
|
if(!self || !self->transport || !data || !size) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return 0;
|
|
}
|
|
|
|
/* check if transport is started */
|
|
if(!self->is_started || !self->transport->master) {
|
|
TSK_DEBUG_WARN("RTP engine not ready yet");
|
|
return 0;
|
|
}
|
|
#if HAVE_SRTP
|
|
/* check that SRTP engine is ready or disabled */
|
|
if(self->srtp_state != trtp_srtp_state_none && self->srtp_state != trtp_srtp_state_started) {
|
|
TSK_DEBUG_WARN("SRTP engine not ready yet");
|
|
return 0;
|
|
}
|
|
#endif
|
|
/* create packet with header */
|
|
if(!(packet = trtp_rtp_packet_create(self->rtp.ssrc.local, ++self->rtp.seq_num, self->rtp.timestamp, self->rtp.payload_type, marker))) {
|
|
return 0;
|
|
}
|
|
if(last_packet) {
|
|
self->rtp.timestamp += duration;
|
|
}
|
|
|
|
/* set data */
|
|
#if 0
|
|
if((packet->payload.data = tsk_calloc(size, sizeof(uint8_t)))) {
|
|
memcpy(packet->payload.data, data, size);
|
|
packet->payload.size = size;
|
|
}
|
|
#else
|
|
packet->payload.data_const = data;
|
|
packet->payload.size = size;
|
|
#endif
|
|
|
|
ret = trtp_manager_send_rtp_packet(self, packet, tsk_false);
|
|
TSK_OBJECT_SAFE_FREE(packet);
|
|
return ret;
|
|
}
|
|
|
|
// serialize, encrypt then send the data
|
|
tsk_size_t trtp_manager_send_rtp_packet(trtp_manager_t* self, const struct trtp_rtp_packet_s* packet, tsk_bool_t bypass_encrypt)
|
|
{
|
|
int ret = 0;
|
|
tsk_size_t rtp_buff_pad_count = 0;
|
|
tsk_size_t xsize;
|
|
|
|
/* check validity */
|
|
if(!self || !packet) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return 0;
|
|
}
|
|
|
|
tsk_safeobj_lock(self);
|
|
|
|
// reset index
|
|
self->rtp.serial_buffer.index = 0;
|
|
|
|
/* check if transport is started */
|
|
if(!self->is_started || !self->transport || !self->transport->master) {
|
|
TSK_DEBUG_WARN("RTP engine not ready yet");
|
|
ret = 0;
|
|
goto bail;
|
|
}
|
|
#if HAVE_SRTP
|
|
/* check that SRTP engine is ready or disabled */
|
|
if(self->srtp_state != trtp_srtp_state_none && self->srtp_state != trtp_srtp_state_started) {
|
|
TSK_DEBUG_WARN("SRTP engine not ready yet");
|
|
ret = 0;
|
|
goto bail;
|
|
}
|
|
if(self->srtp_ctx_neg_local && !bypass_encrypt) {
|
|
rtp_buff_pad_count = (SRTP_MAX_TRAILER_LEN + 0x04);
|
|
}
|
|
#endif /* HAVE_SRTP */
|
|
|
|
xsize = (trtp_rtp_packet_guess_serialbuff_size(packet) + rtp_buff_pad_count);
|
|
if(self->rtp.serial_buffer.size < xsize) {
|
|
if(!(self->rtp.serial_buffer.ptr = tsk_realloc(self->rtp.serial_buffer.ptr, xsize))) {
|
|
TSK_DEBUG_ERROR("Failed to allocate buffer with size = %d", (int)xsize);
|
|
self->rtp.serial_buffer.size = 0;
|
|
goto bail;
|
|
}
|
|
self->rtp.serial_buffer.size = xsize;
|
|
}
|
|
|
|
/* serialize and send over the network */
|
|
if ((ret = (int)trtp_rtp_packet_serialize_to(packet, self->rtp.serial_buffer.ptr, xsize))) {
|
|
void* data_ptr = self->rtp.serial_buffer.ptr;
|
|
int data_size = ret;
|
|
#if HAVE_SRTP
|
|
err_status_t status;
|
|
if(self->srtp_ctx_neg_local && !bypass_encrypt) {
|
|
if((status = srtp_protect(self->srtp_ctx_neg_local->rtp.session, data_ptr, &data_size)) != err_status_ok) {
|
|
TSK_DEBUG_ERROR("srtp_protect() failed with error code =%d", (int)status);
|
|
goto bail;
|
|
}
|
|
}
|
|
#endif
|
|
self->rtp.serial_buffer.index = data_size; // update index
|
|
if (/* number of bytes sent */(ret = (int)trtp_manager_send_rtp_raw(self, data_ptr, data_size)) > 0) {
|
|
// forward packet to the RTCP session
|
|
if (self->rtcp.session) {
|
|
trtp_rtcp_session_process_rtp_out(self->rtcp.session, packet, data_size);
|
|
}
|
|
}
|
|
else {
|
|
ret = 0;
|
|
}
|
|
}
|
|
else {
|
|
TSK_DEBUG_ERROR("Failed to serialize RTP packet");
|
|
}
|
|
|
|
bail:
|
|
tsk_safeobj_unlock(self);
|
|
return ret;
|
|
}
|
|
|
|
// send raw data "as is" without adding any RTP header or SRTP encryption
|
|
tsk_size_t trtp_manager_send_rtp_raw(trtp_manager_t* self, const void* data, tsk_size_t size)
|
|
{
|
|
tsk_size_t ret = 0;
|
|
|
|
if(!self || !self->transport || !self->transport->master || !data || !size) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return 0;
|
|
}
|
|
tsk_safeobj_lock(self);
|
|
if (self->is_ice_turn_active) {
|
|
// Send UDP/TCP/TLS buffer using TURN sockets
|
|
ret = (tnet_ice_ctx_send_turn_rtp(self->ice_ctx, data, size) == 0) ? size : 0; // returns #0 if ok
|
|
}
|
|
else {
|
|
#if 1
|
|
ret = tnet_transport_sendto(self->transport, self->transport->master->fd, (const struct sockaddr *)&self->rtp.remote_addr, data, size); // returns number of sent bytes
|
|
#else
|
|
ret = tnet_sockfd_sendto(self->transport->master->fd, (const struct sockaddr *)&self->rtp.remote_addr, data, size); // returns number of sent bytes
|
|
#endif
|
|
}
|
|
tsk_safeobj_unlock(self);
|
|
return ret;
|
|
}
|
|
|
|
int trtp_manager_get_bytes_count(trtp_manager_t* self, uint64_t* bytes_in, uint64_t* bytes_out)
|
|
{
|
|
if (!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
if (!self->is_started) {
|
|
TSK_DEBUG_INFO("trtp_manager_get_bytes_count() called before starting RTP manager... returning zeros");
|
|
if (bytes_in) {
|
|
*bytes_in = 0;
|
|
}
|
|
if (bytes_out) {
|
|
*bytes_out = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (self->is_ice_turn_active) {
|
|
return tnet_ice_ctx_turn_get_bytes_count(self->ice_ctx, bytes_in, bytes_out);
|
|
}
|
|
return tnet_transport_get_bytes_count(self->transport, bytes_in, bytes_out);
|
|
}
|
|
|
|
int trtp_manager_set_app_bw_and_jcng(trtp_manager_t* self, int32_t bw_upload_kbps, int32_t bw_download_kbps, float q_jcng)
|
|
{
|
|
if(self) {
|
|
self->app_bw_max_upload = bw_upload_kbps;
|
|
self->app_bw_max_download = bw_download_kbps;
|
|
self->app_jitter_cng = q_jcng;
|
|
if(self->rtcp.session) {
|
|
return trtp_rtcp_session_set_app_bw_and_jcng(self->rtcp.session, bw_upload_kbps, bw_download_kbps, q_jcng);
|
|
}
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int trtp_manager_signal_pkt_loss(trtp_manager_t* self, uint32_t ssrc_media, const uint16_t* seq_nums, tsk_size_t count)
|
|
{
|
|
if(self && self->rtcp.session) {
|
|
return trtp_rtcp_session_signal_pkt_loss(self->rtcp.session, ssrc_media, seq_nums, count);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int trtp_manager_signal_frame_corrupted(trtp_manager_t* self, uint32_t ssrc_media)
|
|
{
|
|
if(self && self->rtcp.session) {
|
|
return trtp_rtcp_session_signal_frame_corrupted(self->rtcp.session, ssrc_media);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int trtp_manager_signal_jb_error(trtp_manager_t* self, uint32_t ssrc_media)
|
|
{
|
|
if(self && self->rtcp.session) {
|
|
return trtp_rtcp_session_signal_jb_error(self->rtcp.session, ssrc_media);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/** Stops the RTP/RTCP manager */
|
|
int trtp_manager_stop(trtp_manager_t* self)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (!self) {
|
|
TSK_DEBUG_ERROR("Invalid parameter");
|
|
return -1;
|
|
}
|
|
|
|
TSK_DEBUG_INFO("trtp_manager_stop()");
|
|
|
|
tsk_safeobj_lock(self);
|
|
|
|
// We haven't started the ICE context which means we must not stop it
|
|
//if(self->ice_ctx){
|
|
// ret = tnet_ice_ctx_stop(self->ice_ctx);
|
|
//}
|
|
|
|
// callbacks
|
|
if (self->transport) {
|
|
ret = tnet_transport_set_callback(self->transport, tsk_null, tsk_null);
|
|
}
|
|
if (self->ice_ctx) {
|
|
ret = tnet_ice_ctx_rtp_callback(self->ice_ctx, tsk_null, tsk_null);
|
|
}
|
|
|
|
// Stop the RTCP session first (will send BYE)
|
|
if(self->rtcp.session) {
|
|
ret = trtp_rtcp_session_stop(self->rtcp.session);
|
|
ret = trtp_rtcp_session_set_net_transport(self->rtcp.session, tsk_null);
|
|
}
|
|
|
|
// Free transport to force next call to start() to create new one with new sockets
|
|
if (self->transport) {
|
|
tnet_socket_t *master_copy = tsk_object_ref(self->transport->master); // "tnet_transport_shutdown" will free the master
|
|
tnet_transport_shutdown(self->transport);
|
|
#if HAVE_SRTP
|
|
{
|
|
struct tnet_socket_s* sockets[] = { master_copy, self->rtcp.local_socket };
|
|
// cancel DTLS handshaking timer
|
|
if (self->timer_mgr_global && self->dtls.timer_hanshaking.id != TSK_INVALID_TIMER_ID) {
|
|
tsk_timer_manager_cancel(self->timer_mgr_global, self->dtls.timer_hanshaking.id);
|
|
self->dtls.timer_hanshaking.id = TSK_INVALID_TIMER_ID; // invalidate timer id
|
|
self->dtls.timer_hanshaking.timeout = TRTP_DTLS_HANDSHAKING_TIMEOUT; // reset timeout
|
|
}
|
|
// destroy all SRTP contexts
|
|
_trtp_manager_srtp_set_enabled(self, self->srtp_type, sockets, sizeof(sockets) / sizeof(sockets[0]), tsk_false);
|
|
}
|
|
#endif /* HAVE_SRTP */
|
|
TSK_OBJECT_SAFE_FREE(master_copy);
|
|
TSK_OBJECT_SAFE_FREE(self->transport);
|
|
}
|
|
// Free RTCP info to make sure these values will be updated in next start()
|
|
TSK_OBJECT_SAFE_FREE(self->rtcp.local_socket);
|
|
TSK_OBJECT_SAFE_FREE(self->rtcp.session);
|
|
self->rtcp.public_addr.port = self->rtcp.remote_port = 0;
|
|
TSK_FREE(self->rtcp.public_addr.ip);
|
|
TSK_FREE(self->rtcp.remote_ip);
|
|
|
|
// reset default values
|
|
self->is_symetric_rtp_checked = self->is_symetric_rtcp_checked = tsk_false;
|
|
self->is_ice_neg_ok = tsk_false;
|
|
self->is_ice_turn_active = tsk_false;
|
|
self->is_socket_disabled = tsk_false;
|
|
|
|
self->is_started = tsk_false;
|
|
|
|
tsk_safeobj_unlock(self);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
|
|
//=================================================================================================
|
|
// RTP manager object definition
|
|
//
|
|
static tsk_object_t* trtp_manager_ctor(tsk_object_t * self, va_list * app)
|
|
{
|
|
trtp_manager_t *manager = (trtp_manager_t*)self;
|
|
if(manager) {
|
|
manager->port_range.start = tmedia_defaults_get_rtp_port_range_start();
|
|
manager->port_range.stop = tmedia_defaults_get_rtp_port_range_stop();
|
|
manager->is_force_symetric_rtp = tmedia_defaults_get_rtp_symetric_enabled();
|
|
manager->app_bw_max_upload = INT_MAX; // INT_MAX or <=0 means undefined
|
|
manager->app_bw_max_download = INT_MAX; // INT_MAX or <=0 means undefined
|
|
manager->app_jitter_cng = 1.f; // Within [0, 1], in quality metric unit: 1 is best, 0 worst
|
|
|
|
/* srtp */
|
|
#if HAVE_SRTP
|
|
manager->srtp_type = tmedia_defaults_get_srtp_type();
|
|
manager->srtp_mode = tmedia_defaults_get_srtp_mode();
|
|
manager->dtls.timer_hanshaking.id = TSK_INVALID_TIMER_ID;
|
|
manager->dtls.timer_hanshaking.timeout = TRTP_DTLS_HANDSHAKING_TIMEOUT;
|
|
#endif /* HAVE_SRTP */
|
|
|
|
/* rtp */
|
|
manager->rtp.timestamp = rand()^rand();
|
|
manager->rtp.seq_num = rand()^rand();
|
|
manager->rtp.ssrc.local = rand()^rand()^(int)tsk_time_epoch();
|
|
manager->rtp.dscp = TRTP_DSCP_RTP_DEFAULT;
|
|
|
|
/* rtcp */
|
|
{
|
|
// use MD5 string to avoid padding issues
|
|
tsk_md5string_t md5 = { 0 };
|
|
tsk_sprintf(&manager->rtcp.cname, "doubango.%llu", (tsk_time_now() + rand()));
|
|
tsk_md5compute(manager->rtcp.cname, tsk_strlen(manager->rtcp.cname), &md5);
|
|
tsk_strupdate(&manager->rtcp.cname, md5);
|
|
}
|
|
|
|
/* timer */
|
|
manager->timer_mgr_global = tsk_timer_mgr_global_ref();
|
|
|
|
tsk_safeobj_init(manager);
|
|
}
|
|
return self;
|
|
}
|
|
|
|
static tsk_object_t* trtp_manager_dtor(tsk_object_t * self)
|
|
{
|
|
trtp_manager_t *manager = self;
|
|
if(manager) {
|
|
/* callbacks */
|
|
if (manager->ice_ctx) {
|
|
tnet_ice_ctx_rtp_callback(manager->ice_ctx, tsk_null, tsk_null);
|
|
}
|
|
if (manager->transport) {
|
|
|
|
}
|
|
|
|
/* stop */
|
|
if (manager->is_started) {
|
|
trtp_manager_stop(manager);
|
|
}
|
|
|
|
TSK_OBJECT_SAFE_FREE(manager->transport);
|
|
|
|
TSK_FREE(manager->local_ip);
|
|
|
|
/* rtp */
|
|
TSK_FREE(manager->rtp.remote_ip);
|
|
TSK_FREE(manager->rtp.public_addr.ip);
|
|
TSK_FREE(manager->rtp.serial_buffer.ptr);
|
|
|
|
/* rtcp */
|
|
TSK_OBJECT_SAFE_FREE(manager->rtcp.session);
|
|
TSK_FREE(manager->rtcp.remote_ip);
|
|
TSK_FREE(manager->rtcp.public_addr.ip);
|
|
TSK_FREE(manager->rtcp.cname);
|
|
TSK_OBJECT_SAFE_FREE(manager->rtcp.local_socket);
|
|
|
|
/* SRTP */
|
|
#if HAVE_SRTP
|
|
{
|
|
int i;
|
|
|
|
/* Timer */
|
|
// cancel DTLS handshaking timer
|
|
if(manager->timer_mgr_global && manager->dtls.timer_hanshaking.id != TSK_INVALID_TIMER_ID) {
|
|
tsk_timer_manager_cancel(manager->timer_mgr_global, manager->dtls.timer_hanshaking.id);
|
|
manager->dtls.timer_hanshaking.id = TSK_INVALID_TIMER_ID;
|
|
}
|
|
|
|
for(i = 0; i < 2; ++i) {
|
|
trtp_srtp_ctx_deinit(&manager->srtp_contexts[TRTP_SRTP_LINE_IDX_LOCAL][i]);
|
|
trtp_srtp_ctx_deinit(&manager->srtp_contexts[TRTP_SRTP_LINE_IDX_REMOTE][i]);
|
|
}
|
|
|
|
/* SRTP-DTLS */
|
|
TSK_FREE(manager->dtls.file_ca);
|
|
TSK_FREE(manager->dtls.file_pbk);
|
|
TSK_FREE(manager->dtls.file_pvk);
|
|
}
|
|
#endif /* HAVE_SRTP */
|
|
|
|
/* Timer manager */
|
|
if(manager->timer_mgr_global) {
|
|
tsk_timer_mgr_global_unref(&manager->timer_mgr_global);
|
|
}
|
|
|
|
/* ICE */
|
|
if (manager->ice_ctx) {
|
|
TSK_OBJECT_SAFE_FREE(manager->ice_ctx);
|
|
}
|
|
|
|
/* Proxy */
|
|
TSK_OBJECT_SAFE_FREE(manager->proxy.info);
|
|
|
|
tsk_safeobj_deinit(manager);
|
|
|
|
TSK_DEBUG_INFO("*** RTP manager destroyed ***");
|
|
}
|
|
|
|
return self;
|
|
}
|
|
|
|
static const tsk_object_def_t trtp_manager_def_s = {
|
|
sizeof(trtp_manager_t),
|
|
trtp_manager_ctor,
|
|
trtp_manager_dtor,
|
|
tsk_null,
|
|
};
|
|
const tsk_object_def_t *trtp_manager_def_t = &trtp_manager_def_s;
|