3915 lines
121 KiB
C++
Executable File
3915 lines
121 KiB
C++
Executable File
//
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// libtgvoip is free and unencumbered public domain software.
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// For more information, see http://unlicense.org or the UNLICENSE file
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// you should have received with this source code distribution.
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//
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#ifndef _WIN32
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#include <unistd.h>
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#include <sys/time.h>
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#endif
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#include <errno.h>
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#include <string.h>
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#include <wchar.h>
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#include "VoIPController.h"
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#include "logging.h"
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#include "threading.h"
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#include "Buffers.h"
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#include "OpusEncoder.h"
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#include "OpusDecoder.h"
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#include "VoIPServerConfig.h"
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#include "PrivateDefines.h"
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#include "json11.hpp"
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#include <assert.h>
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#include <time.h>
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#include <math.h>
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#include <exception>
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#include <stdexcept>
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#include <algorithm>
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#include <sstream>
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#include <inttypes.h>
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#include <float.h>
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inline int pad4(int x){
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int r=PAD4(x);
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if(r==4)
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return 0;
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return r;
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}
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using namespace tgvoip;
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using namespace std;
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#ifdef __APPLE__
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#include "os/darwin/AudioUnitIO.h"
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#include <mach/mach_time.h>
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double VoIPController::machTimebase=0;
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uint64_t VoIPController::machTimestart=0;
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#endif
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#ifdef _WIN32
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int64_t VoIPController::win32TimeScale = 0;
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bool VoIPController::didInitWin32TimeScale = false;
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#endif
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#ifdef __ANDROID__
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#include "os/android/JNIUtilities.h"
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#include "os/android/AudioInputAndroid.h"
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extern jclass jniUtilitiesClass;
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#endif
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#if defined(TGVOIP_USE_CALLBACK_AUDIO_IO)
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#include "audio/AudioIOCallback.h"
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#endif
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#pragma mark - OpenSSL wrappers
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#ifndef TGVOIP_USE_CUSTOM_CRYPTO
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extern "C" {
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#include <openssl/sha.h>
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#include <openssl/aes.h>
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#include <openssl/modes.h>
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#include <openssl/rand.h>
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}
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void tgvoip_openssl_aes_ige_encrypt(uint8_t* in, uint8_t* out, size_t length, uint8_t* key, uint8_t* iv){
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AES_KEY akey;
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AES_set_encrypt_key(key, 32*8, &akey);
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AES_ige_encrypt(in, out, length, &akey, iv, AES_ENCRYPT);
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}
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void tgvoip_openssl_aes_ige_decrypt(uint8_t* in, uint8_t* out, size_t length, uint8_t* key, uint8_t* iv){
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AES_KEY akey;
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AES_set_decrypt_key(key, 32*8, &akey);
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AES_ige_encrypt(in, out, length, &akey, iv, AES_DECRYPT);
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}
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void tgvoip_openssl_rand_bytes(uint8_t* buffer, size_t len){
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RAND_bytes(buffer, len);
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}
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void tgvoip_openssl_sha1(uint8_t* msg, size_t len, uint8_t* output){
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SHA1(msg, len, output);
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}
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void tgvoip_openssl_sha256(uint8_t* msg, size_t len, uint8_t* output){
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SHA256(msg, len, output);
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}
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void tgvoip_openssl_aes_ctr_encrypt(uint8_t* inout, size_t length, uint8_t* key, uint8_t* iv, uint8_t* ecount, uint32_t* num){
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AES_KEY akey;
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AES_set_encrypt_key(key, 32*8, &akey);
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CRYPTO_ctr128_encrypt(inout, inout, length, &akey, iv, ecount, num, (block128_f) AES_encrypt);
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}
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void tgvoip_openssl_aes_cbc_encrypt(uint8_t* in, uint8_t* out, size_t length, uint8_t* key, uint8_t* iv){
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AES_KEY akey;
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AES_set_encrypt_key(key, 256, &akey);
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AES_cbc_encrypt(in, out, length, &akey, iv, AES_ENCRYPT);
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}
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void tgvoip_openssl_aes_cbc_decrypt(uint8_t* in, uint8_t* out, size_t length, uint8_t* key, uint8_t* iv){
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AES_KEY akey;
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AES_set_decrypt_key(key, 256, &akey);
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AES_cbc_encrypt(in, out, length, &akey, iv, AES_DECRYPT);
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}
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CryptoFunctions VoIPController::crypto={
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tgvoip_openssl_rand_bytes,
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tgvoip_openssl_sha1,
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tgvoip_openssl_sha256,
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tgvoip_openssl_aes_ige_encrypt,
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tgvoip_openssl_aes_ige_decrypt,
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tgvoip_openssl_aes_ctr_encrypt,
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tgvoip_openssl_aes_cbc_encrypt,
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tgvoip_openssl_aes_cbc_decrypt
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};
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#else
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CryptoFunctions VoIPController::crypto; // set it yourself upon initialization
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#endif
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extern FILE* tgvoipLogFile;
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#pragma mark - Public API
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VoIPController::VoIPController() : activeNetItfName(""),
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currentAudioInput("default"),
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currentAudioOutput("default"),
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proxyAddress(""),
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proxyUsername(""),
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proxyPassword(""){
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seq=1;
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lastRemoteSeq=0;
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state=STATE_WAIT_INIT;
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audioInput=NULL;
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audioOutput=NULL;
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encoder=NULL;
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audioOutStarted=false;
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audioTimestampIn=0;
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audioTimestampOut=0;
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stopping=false;
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memset(recvPacketTimes, 0, sizeof(double)*32);
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memset(&stats, 0, sizeof(TrafficStats));
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lastRemoteAckSeq=0;
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lastSentSeq=0;
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recvLossCount=0;
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packetsReceived=0;
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waitingForAcks=false;
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networkType=NET_TYPE_UNKNOWN;
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echoCanceller=NULL;
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dontSendPackets=0;
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micMuted=false;
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waitingForRelayPeerInfo=false;
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allowP2p=true;
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dataSavingMode=false;
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publicEndpointsReqTime=0;
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connectionInitTime=0;
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lastRecvPacketTime=0;
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dataSavingRequestedByPeer=false;
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peerVersion=0;
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conctl=new CongestionControl();
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prevSendLossCount=0;
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receivedInit=false;
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receivedInitAck=false;
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statsDump=NULL;
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useTCP=false;
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useUDP=true;
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didAddTcpRelays=false;
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udpPingCount=0;
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lastUdpPingTime=0;
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proxyProtocol=PROXY_NONE;
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proxyPort=0;
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resolvedProxyAddress=NULL;
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selectCanceller=SocketSelectCanceller::Create();
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udpSocket=NetworkSocket::Create(PROTO_UDP);
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realUdpSocket=udpSocket;
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udpConnectivityState=UDP_UNKNOWN;
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echoCancellationStrength=1;
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peerCapabilities=0;
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callbacks={0};
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didReceiveGroupCallKey=false;
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didReceiveGroupCallKeyAck=false;
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didSendGroupCallKey=false;
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didSendUpgradeRequest=false;
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didInvokeUpgradeCallback=false;
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connectionMaxLayer=0;
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useMTProto2=false;
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setCurrentEndpointToTCP=false;
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useIPv6=false;
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peerIPv6Available=false;
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shittyInternetMode=false;
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didAddIPv6Relays=false;
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didSendIPv6Endpoint=false;
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unsentStreamPackets.store(0);
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sendThread=NULL;
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recvThread=NULL;
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maxAudioBitrate=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_max_bitrate", 20000);
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maxAudioBitrateGPRS=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_max_bitrate_gprs", 8000);
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maxAudioBitrateEDGE=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_max_bitrate_edge", 16000);
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maxAudioBitrateSaving=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_max_bitrate_saving", 8000);
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initAudioBitrate=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_init_bitrate", 16000);
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initAudioBitrateGPRS=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_init_bitrate_gprs", 8000);
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initAudioBitrateEDGE=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_init_bitrate_edge", 8000);
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initAudioBitrateSaving=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_init_bitrate_saving", 8000);
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audioBitrateStepIncr=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_bitrate_step_incr", 1000);
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audioBitrateStepDecr=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_bitrate_step_decr", 1000);
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minAudioBitrate=(uint32_t) ServerConfig::GetSharedInstance()->GetInt("audio_min_bitrate", 8000);
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relaySwitchThreshold=ServerConfig::GetSharedInstance()->GetDouble("relay_switch_threshold", 0.8);
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p2pToRelaySwitchThreshold=ServerConfig::GetSharedInstance()->GetDouble("p2p_to_relay_switch_threshold", 0.6);
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relayToP2pSwitchThreshold=ServerConfig::GetSharedInstance()->GetDouble("relay_to_p2p_switch_threshold", 0.8);
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reconnectingTimeout=ServerConfig::GetSharedInstance()->GetDouble("reconnecting_state_timeout", 2.0);
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needRateFlags=static_cast<uint32_t>(ServerConfig::GetSharedInstance()->GetInt("rate_flags", 0xFFFFFFFF));
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rateMaxAcceptableRTT=ServerConfig::GetSharedInstance()->GetDouble("rate_min_rtt", 0.6);
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rateMaxAcceptableSendLoss=ServerConfig::GetSharedInstance()->GetDouble("rate_min_send_loss", 0.2);
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packetLossToEnableExtraEC=ServerConfig::GetSharedInstance()->GetDouble("packet_loss_for_extra_ec", 0.02);
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maxUnsentStreamPackets=static_cast<uint32_t>(ServerConfig::GetSharedInstance()->GetInt("max_unsent_stream_packets", 2));
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#ifdef __APPLE__
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machTimestart=0;
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#endif
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shared_ptr<Stream> stm=make_shared<Stream>();
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stm->id=1;
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stm->type=STREAM_TYPE_AUDIO;
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stm->codec=CODEC_OPUS;
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stm->enabled=1;
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stm->frameDuration=60;
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outgoingStreams.push_back(stm);
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}
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VoIPController::~VoIPController(){
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LOGD("Entered VoIPController::~VoIPController");
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if(!stopping){
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LOGE("!!!!!!!!!!!!!!!!!!!! CALL controller->Stop() BEFORE DELETING THE CONTROLLER OBJECT !!!!!!!!!!!!!!!!!!!!!!!1");
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abort();
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}
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LOGD("before close socket");
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if(udpSocket)
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delete udpSocket;
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if(udpSocket!=realUdpSocket)
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delete realUdpSocket;
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LOGD("before delete audioIO");
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if(audioIO){
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delete audioIO;
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audioInput=NULL;
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audioOutput=NULL;
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}
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for(vector<shared_ptr<Stream>>::iterator _stm=incomingStreams.begin();_stm!=incomingStreams.end();++_stm){
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shared_ptr<Stream> stm=*_stm;
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LOGD("before stop decoder");
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if(stm->decoder){
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stm->decoder->Stop();
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}
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}
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LOGD("before delete encoder");
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if(encoder){
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encoder->Stop();
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delete encoder;
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}
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LOGD("before delete echo canceller");
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if(echoCanceller){
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echoCanceller->Stop();
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delete echoCanceller;
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}
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delete conctl;
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if(statsDump)
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fclose(statsDump);
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if(resolvedProxyAddress)
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delete resolvedProxyAddress;
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delete selectCanceller;
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LOGD("Left VoIPController::~VoIPController");
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if(tgvoipLogFile){
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FILE* log=tgvoipLogFile;
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tgvoipLogFile=NULL;
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fclose(log);
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}
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}
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void VoIPController::Stop(){
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LOGD("Entered VoIPController::Stop");
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stopping=true;
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runReceiver=false;
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LOGD("before shutdown socket");
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if(udpSocket)
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udpSocket->Close();
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if(realUdpSocket!=udpSocket)
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realUdpSocket->Close();
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selectCanceller->CancelSelect();
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Buffer emptyBuf(0);
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//PendingOutgoingPacket emptyPacket{0, 0, 0, move(emptyBuf), 0};
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//sendQueue->Put(move(emptyPacket));
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LOGD("before join sendThread");
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if(sendThread){
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sendThread->Join();
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delete sendThread;
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}
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LOGD("before join recvThread");
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if(recvThread){
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recvThread->Join();
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delete recvThread;
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}
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LOGD("before stop messageThread");
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messageThread.Stop();
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{
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LOGD("Before stop audio I/O");
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MutexGuard m(audioIOMutex);
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if(audioInput){
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audioInput->Stop();
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audioInput->SetCallback(NULL, NULL);
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}
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if(audioOutput){
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audioOutput->Stop();
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audioOutput->SetCallback(NULL, NULL);
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}
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}
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LOGD("Left VoIPController::Stop [need rate = %d]", (int)needRate);
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}
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bool VoIPController::NeedRate(){
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return needRate && ServerConfig::GetSharedInstance()->GetBoolean("bad_call_rating", false);
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}
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void VoIPController::SetRemoteEndpoints(vector<Endpoint> endpoints, bool allowP2p, int32_t connectionMaxLayer){
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LOGW("Set remote endpoints, allowP2P=%d, connectionMaxLayer=%u", allowP2p ? 1 : 0, connectionMaxLayer);
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preferredRelay=0;
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{
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MutexGuard m(endpointsMutex);
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this->endpoints.clear();
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didAddTcpRelays=false;
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useTCP=true;
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for(vector<Endpoint>::iterator itrtr=endpoints.begin();itrtr!=endpoints.end();++itrtr){
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if(this->endpoints.find(itrtr->id)!=this->endpoints.end())
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LOGE("Endpoint IDs are not unique!");
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this->endpoints[itrtr->id]=*itrtr;
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if(currentEndpoint==0)
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currentEndpoint=itrtr->id;
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if(itrtr->type==Endpoint::Type::TCP_RELAY)
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didAddTcpRelays=true;
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if(itrtr->type==Endpoint::Type::UDP_RELAY)
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useTCP=false;
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LOGV("Adding endpoint: %s:%d, %s", itrtr->address.ToString().c_str(), itrtr->port, itrtr->type==Endpoint::Type::UDP_RELAY ? "UDP" : "TCP");
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}
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}
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preferredRelay=currentEndpoint;
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this->allowP2p=allowP2p;
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this->connectionMaxLayer=connectionMaxLayer;
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if(connectionMaxLayer>=74){
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useMTProto2=true;
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}
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AddIPv6Relays();
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}
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void VoIPController::Start(){
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LOGW("Starting voip controller");
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udpSocket->Open();
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if(udpSocket->IsFailed()){
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SetState(STATE_FAILED);
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return;
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}
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//SendPacket(NULL, 0, currentEndpoint);
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runReceiver=true;
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recvThread=new Thread(bind(&VoIPController::RunRecvThread, this));
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recvThread->SetName("VoipRecv");
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recvThread->Start();
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messageThread.Start();
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}
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void VoIPController::Connect(){
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assert(state!=STATE_WAIT_INIT_ACK);
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connectionInitTime=GetCurrentTime();
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if(config.initTimeout==0.0){
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LOGE("Init timeout is 0 -- did you forget to set config?");
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config.initTimeout=30.0;
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}
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//InitializeTimers();
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//SendInit();
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sendThread=new Thread(bind(&VoIPController::RunSendThread, this));
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sendThread->SetName("VoipSend");
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sendThread->Start();
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}
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void VoIPController::SetEncryptionKey(char *key, bool isOutgoing){
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memcpy(encryptionKey, key, 256);
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uint8_t sha1[SHA1_LENGTH];
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crypto.sha1((uint8_t*) encryptionKey, 256, sha1);
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memcpy(keyFingerprint, sha1+(SHA1_LENGTH-8), 8);
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uint8_t sha256[SHA256_LENGTH];
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crypto.sha256((uint8_t*) encryptionKey, 256, sha256);
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memcpy(callID, sha256+(SHA256_LENGTH-16), 16);
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this->isOutgoing=isOutgoing;
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}
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void VoIPController::SetNetworkType(int type){
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networkType=type;
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UpdateDataSavingState();
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UpdateAudioBitrateLimit();
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myIPv6=IPv6Address();
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string itfName=udpSocket->GetLocalInterfaceInfo(NULL, &myIPv6);
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LOGI("set network type: %s, active interface %s", NetworkTypeToString(type).c_str(), itfName.c_str());
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LOGI("Local IPv6 address: %s", myIPv6.ToString().c_str());
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if(IS_MOBILE_NETWORK(networkType)){
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CellularCarrierInfo carrier=GetCarrierInfo();
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if(!carrier.name.empty()){
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LOGI("Carrier: %s [%s; mcc=%s, mnc=%s]", carrier.name.c_str(), carrier.countryCode.c_str(), carrier.mcc.c_str(), carrier.mnc.c_str());
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}
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}
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if(itfName!=activeNetItfName){
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udpSocket->OnActiveInterfaceChanged();
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LOGI("Active network interface changed: %s -> %s", activeNetItfName.c_str(), itfName.c_str());
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bool isFirstChange=activeNetItfName.length()==0 && state!=STATE_ESTABLISHED && state!=STATE_RECONNECTING;
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activeNetItfName=itfName;
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if(isFirstChange)
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return;
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wasNetworkHandover=true;
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if(currentEndpoint){
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const Endpoint& _currentEndpoint=endpoints.at(currentEndpoint);
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const Endpoint& _preferredRelay=endpoints.at(preferredRelay);
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if(_currentEndpoint.type!=Endpoint::Type::UDP_RELAY){
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if(_preferredRelay.type==Endpoint::Type::UDP_RELAY)
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currentEndpoint=preferredRelay;
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MutexGuard m(endpointsMutex);
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constexpr int64_t lanID=(int64_t)(FOURCC('L','A','N','4')) << 32;
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endpoints.erase(lanID);
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for(pair<const int64_t, Endpoint>& e:endpoints){
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Endpoint& endpoint=e.second;
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if(endpoint.type==Endpoint::Type::UDP_RELAY && useTCP){
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useTCP=false;
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if(_preferredRelay.type==Endpoint::Type::TCP_RELAY){
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preferredRelay=currentEndpoint=endpoint.id;
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}
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}else if(endpoint.type==Endpoint::Type::TCP_RELAY && endpoint.socket){
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endpoint.socket->Close();
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//delete endpoint.socket;
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//endpoint.socket=NULL;
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}
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//if(endpoint->type==Endpoint::Type::UDP_P2P_INET){
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endpoint.averageRTT=0;
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endpoint.rtts.Reset();
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//}
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}
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}
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}
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lastUdpPingTime=0;
|
|
if(proxyProtocol==PROXY_SOCKS5)
|
|
InitUDPProxy();
|
|
if(allowP2p && currentEndpoint){
|
|
SendPublicEndpointsRequest();
|
|
}
|
|
BufferOutputStream s(4);
|
|
s.WriteInt32(dataSavingMode ? INIT_FLAG_DATA_SAVING_ENABLED : 0);
|
|
if(peerVersion<6){
|
|
SendPacketReliably(PKT_NETWORK_CHANGED, s.GetBuffer(), s.GetLength(), 1, 20);
|
|
}else{
|
|
Buffer buf(move(s));
|
|
SendExtra(buf, EXTRA_TYPE_NETWORK_CHANGED);
|
|
}
|
|
needReInitUdpProxy=true;
|
|
selectCanceller->CancelSelect();
|
|
didSendIPv6Endpoint=false;
|
|
|
|
AddIPv6Relays();
|
|
ResetUdpAvailability();
|
|
ResetEndpointPingStats();
|
|
|
|
}
|
|
}
|
|
|
|
double VoIPController::GetAverageRTT(){
|
|
if(lastSentSeq>=lastRemoteAckSeq){
|
|
uint32_t diff=lastSentSeq-lastRemoteAckSeq;
|
|
//LOGV("rtt diff=%u", diff);
|
|
if(diff<32){
|
|
double res=0;
|
|
int count=0;
|
|
/*for(i=diff;i<32;i++){
|
|
if(remoteAcks[i-diff]>0){
|
|
res+=(remoteAcks[i-diff]-sentPacketTimes[i]);
|
|
count++;
|
|
}
|
|
}*/
|
|
MutexGuard m(queuedPacketsMutex);
|
|
for(std::vector<RecentOutgoingPacket>::iterator itr=recentOutgoingPackets.begin();itr!=recentOutgoingPackets.end();++itr){
|
|
if(itr->ackTime>0){
|
|
res+=(itr->ackTime-itr->sendTime);
|
|
count++;
|
|
}
|
|
}
|
|
if(count>0)
|
|
res/=count;
|
|
return res;
|
|
}
|
|
}
|
|
return 999;
|
|
}
|
|
|
|
void VoIPController::SetMicMute(bool mute){
|
|
if(micMuted==mute)
|
|
return;
|
|
micMuted=mute;
|
|
if(audioInput){
|
|
if(mute)
|
|
audioInput->Stop();
|
|
else
|
|
audioInput->Start();
|
|
if(!audioInput->IsInitialized()){
|
|
lastError=ERROR_AUDIO_IO;
|
|
SetState(STATE_FAILED);
|
|
return;
|
|
}
|
|
}
|
|
if(echoCanceller)
|
|
echoCanceller->Enable(!mute);
|
|
if(state==STATE_ESTABLISHED){
|
|
for(shared_ptr<Stream>& s:outgoingStreams){
|
|
if(s->type==STREAM_TYPE_AUDIO){
|
|
s->enabled=!mute;
|
|
if(peerVersion<6){
|
|
unsigned char buf[2];
|
|
buf[0]=s->id;
|
|
buf[1]=(char) (mute ? 0 : 1);
|
|
SendPacketReliably(PKT_STREAM_STATE, buf, 2, .5f, 20);
|
|
}else{
|
|
SendStreamFlags(*s);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if(mute){
|
|
if(noStreamsNopID==MessageThread::INVALID_ID)
|
|
noStreamsNopID=messageThread.Post(std::bind(&VoIPController::SendNopPacket, this), 0.2, 0.2);
|
|
}else{
|
|
if(noStreamsNopID!=MessageThread::INVALID_ID){
|
|
messageThread.Cancel(noStreamsNopID);
|
|
noStreamsNopID=MessageThread::INVALID_ID;
|
|
}
|
|
}
|
|
}
|
|
|
|
string VoIPController::GetDebugString(){
|
|
string r="Remote endpoints: \n";
|
|
char buffer[2048];
|
|
MutexGuard m(endpointsMutex);
|
|
for(pair<const int64_t, Endpoint>& _e:endpoints){
|
|
Endpoint& endpoint=_e.second;
|
|
const char* type;
|
|
switch(endpoint.type){
|
|
case Endpoint::Type::UDP_P2P_INET:
|
|
type="UDP_P2P_INET";
|
|
break;
|
|
case Endpoint::Type::UDP_P2P_LAN:
|
|
type="UDP_P2P_LAN";
|
|
break;
|
|
case Endpoint::Type::UDP_RELAY:
|
|
type="UDP_RELAY";
|
|
break;
|
|
case Endpoint::Type::TCP_RELAY:
|
|
type="TCP_RELAY";
|
|
break;
|
|
default:
|
|
type="UNKNOWN";
|
|
break;
|
|
}
|
|
snprintf(buffer, sizeof(buffer), "%s:%u %dms %d 0x%" PRIx64 " [%s%s]\n", endpoint.address.IsEmpty() ? ("["+endpoint.v6address.ToString()+"]").c_str() : endpoint.address.ToString().c_str(), endpoint.port, (int)(endpoint.averageRTT*1000), endpoint.udpPongCount, (uint64_t)endpoint.id, type, currentEndpoint==endpoint.id ? ", IN_USE" : "");
|
|
r+=buffer;
|
|
}
|
|
if(shittyInternetMode){
|
|
snprintf(buffer, sizeof(buffer), "ShittyInternetMode: level %d\n", extraEcLevel);
|
|
r+=buffer;
|
|
}
|
|
double avgLate[3];
|
|
shared_ptr<Stream> stm=GetStreamByType(STREAM_TYPE_AUDIO, false);
|
|
shared_ptr<JitterBuffer> jitterBuffer;
|
|
if(stm)
|
|
jitterBuffer=stm->jitterBuffer;
|
|
if(jitterBuffer)
|
|
jitterBuffer->GetAverageLateCount(avgLate);
|
|
else
|
|
memset(avgLate, 0, 3*sizeof(double));
|
|
snprintf(buffer, sizeof(buffer),
|
|
"Jitter buffer: %d/%.2f | %.1f, %.1f, %.1f\n"
|
|
"RTT avg/min: %d/%d\n"
|
|
"Congestion window: %d/%d bytes\n"
|
|
"Key fingerprint: %02hhX%02hhX%02hhX%02hhX%02hhX%02hhX%02hhX%02hhX%s\n"
|
|
"Last sent/ack'd seq: %u/%u\n"
|
|
"Last recvd seq: %u\n"
|
|
"Send/recv losses: %u/%u (%d%%)\n"
|
|
"Audio bitrate: %d kbit\n"
|
|
"Outgoing queue: %u\n"
|
|
// "Packet grouping: %d\n"
|
|
"Frame size out/in: %d/%d\n"
|
|
"Bytes sent/recvd: %llu/%llu",
|
|
jitterBuffer ? jitterBuffer->GetMinPacketCount() : 0, jitterBuffer ? jitterBuffer->GetAverageDelay() : 0, avgLate[0], avgLate[1], avgLate[2],
|
|
// (int)(GetAverageRTT()*1000), 0,
|
|
(int)(conctl->GetAverageRTT()*1000), (int)(conctl->GetMinimumRTT()*1000),
|
|
int(conctl->GetInflightDataSize()), int(conctl->GetCongestionWindow()),
|
|
keyFingerprint[0],keyFingerprint[1],keyFingerprint[2],keyFingerprint[3],keyFingerprint[4],keyFingerprint[5],keyFingerprint[6],keyFingerprint[7],
|
|
useMTProto2 ? " (MTProto2.0)" : "",
|
|
lastSentSeq, lastRemoteAckSeq, lastRemoteSeq,
|
|
conctl->GetSendLossCount(), recvLossCount, encoder ? encoder->GetPacketLoss() : 0,
|
|
encoder ? (encoder->GetBitrate()/1000) : 0,
|
|
static_cast<unsigned int>(unsentStreamPackets),
|
|
// audioPacketGrouping,
|
|
outgoingStreams[0]->frameDuration, incomingStreams.size()>0 ? incomingStreams[0]->frameDuration : 0,
|
|
(long long unsigned int)(stats.bytesSentMobile+stats.bytesSentWifi),
|
|
(long long unsigned int)(stats.bytesRecvdMobile+stats.bytesRecvdWifi));
|
|
r+=buffer;
|
|
return r;
|
|
}
|
|
|
|
const char* VoIPController::GetVersion(){
|
|
return LIBTGVOIP_VERSION;
|
|
}
|
|
|
|
|
|
int64_t VoIPController::GetPreferredRelayID(){
|
|
return preferredRelay;
|
|
}
|
|
|
|
|
|
int VoIPController::GetLastError(){
|
|
return lastError;
|
|
}
|
|
|
|
|
|
void VoIPController::GetStats(TrafficStats *stats){
|
|
memcpy(stats, &this->stats, sizeof(TrafficStats));
|
|
}
|
|
|
|
string VoIPController::GetDebugLog(){
|
|
map<string, json11::Json> network{
|
|
{"type", NetworkTypeToString(networkType)}
|
|
};
|
|
if(IS_MOBILE_NETWORK(networkType)){
|
|
CellularCarrierInfo carrier=GetCarrierInfo();
|
|
if(!carrier.name.empty()){
|
|
network["carrier"]=carrier.name;
|
|
network["country"]=carrier.countryCode;
|
|
network["mcc"]=carrier.mcc;
|
|
network["mnc"]=carrier.mnc;
|
|
}
|
|
}else if(networkType==NET_TYPE_WIFI){
|
|
#ifdef __ANDROID__
|
|
jni::DoWithJNI([&](JNIEnv* env){
|
|
jmethodID getWifiInfoMethod=env->GetStaticMethodID(jniUtilitiesClass, "getWifiInfo", "()[I");
|
|
jintArray res=static_cast<jintArray>(env->CallStaticObjectMethod(jniUtilitiesClass, getWifiInfoMethod));
|
|
if(res){
|
|
jint* wifiInfo=env->GetIntArrayElements(res, NULL);
|
|
network["rssi"]=wifiInfo[0];
|
|
network["link_speed"]=wifiInfo[1];
|
|
env->ReleaseIntArrayElements(res, wifiInfo, JNI_ABORT);
|
|
}
|
|
});
|
|
#endif
|
|
}
|
|
/*vector<json11::Json> lpkts;
|
|
for(DebugLoggedPacket& lpkt:debugLoggedPackets){
|
|
lpkts.push_back(json11::Json::array{lpkt.timestamp, lpkt.seq, lpkt.length});
|
|
}
|
|
return json11::Json(json11::Json::object{
|
|
{"log_type", "out_packet_stats"},
|
|
{"libtgvoip_version", LIBTGVOIP_VERSION},
|
|
{"network", network},
|
|
{"protocol_version", std::min(peerVersion, PROTOCOL_VERSION)},
|
|
{"total_losses", json11::Json::object{
|
|
{"s", (int32_t)conctl->GetSendLossCount()},
|
|
{"r", (int32_t)recvLossCount}
|
|
}},
|
|
{"call_duration", GetCurrentTime()-connectionInitTime},
|
|
{"out_packet_stats", lpkts}
|
|
}).dump();*/
|
|
|
|
string p2pType="none";
|
|
Endpoint& cur=endpoints[currentEndpoint];
|
|
if(cur.type==Endpoint::Type::UDP_P2P_INET)
|
|
p2pType=cur.IsIPv6Only() ? "inet6" : "inet";
|
|
else if(cur.type==Endpoint::Type::UDP_P2P_LAN)
|
|
p2pType="lan";
|
|
|
|
vector<string> problems;
|
|
if(lastError==ERROR_TIMEOUT)
|
|
problems.push_back("timeout");
|
|
if(wasReconnecting)
|
|
problems.push_back("reconnecting");
|
|
if(wasExtraEC)
|
|
problems.push_back("extra_ec");
|
|
if(wasEncoderLaggy)
|
|
problems.push_back("encoder_lag");
|
|
if(!wasEstablished)
|
|
problems.push_back("not_inited");
|
|
if(wasNetworkHandover)
|
|
problems.push_back("network_handover");
|
|
|
|
ostringstream prefRelay;
|
|
prefRelay << preferredRelay;
|
|
|
|
return json11::Json(json11::Json::object{
|
|
{"log_type", "call_stats"},
|
|
{"libtgvoip_version", LIBTGVOIP_VERSION},
|
|
{"network", network},
|
|
{"protocol_version", std::min(peerVersion, PROTOCOL_VERSION)},
|
|
{"udp_avail", udpConnectivityState==UDP_AVAILABLE},
|
|
{"tcp_used", useTCP},
|
|
{"relay_rtt", (int)(endpoints[preferredRelay].averageRTT*1000.0)},
|
|
{"p2p_type", p2pType},
|
|
{"rtt", (int)(endpoints[currentEndpoint].averageRTT*1000.0)},
|
|
{"packet_stats", json11::Json::object{
|
|
{"out", (int)seq},
|
|
{"in", (int)packetsReceived},
|
|
{"lost_out", (int)conctl->GetSendLossCount()},
|
|
{"lost_in", (int)recvLossCount}
|
|
}},
|
|
{"problems", problems},
|
|
{"pref_relay", prefRelay.str()}
|
|
}).dump();
|
|
}
|
|
|
|
vector<AudioInputDevice> VoIPController::EnumerateAudioInputs(){
|
|
vector<AudioInputDevice> devs;
|
|
audio::AudioInput::EnumerateDevices(devs);
|
|
return devs;
|
|
}
|
|
|
|
vector<AudioOutputDevice> VoIPController::EnumerateAudioOutputs(){
|
|
vector<AudioOutputDevice> devs;
|
|
audio::AudioOutput::EnumerateDevices(devs);
|
|
return devs;
|
|
}
|
|
|
|
void VoIPController::SetCurrentAudioInput(string id){
|
|
currentAudioInput=id;
|
|
if(audioInput)
|
|
audioInput->SetCurrentDevice(id);
|
|
}
|
|
|
|
void VoIPController::SetCurrentAudioOutput(string id){
|
|
currentAudioOutput=id;
|
|
if(audioOutput)
|
|
audioOutput->SetCurrentDevice(id);
|
|
}
|
|
|
|
string VoIPController::GetCurrentAudioInputID(){
|
|
return currentAudioInput;
|
|
}
|
|
|
|
string VoIPController::GetCurrentAudioOutputID(){
|
|
return currentAudioOutput;
|
|
}
|
|
|
|
void VoIPController::SetProxy(int protocol, string address, uint16_t port, string username, string password){
|
|
proxyProtocol=protocol;
|
|
proxyAddress=address;
|
|
proxyPort=port;
|
|
proxyUsername=username;
|
|
proxyPassword=password;
|
|
}
|
|
|
|
int VoIPController::GetSignalBarsCount(){
|
|
return signalBarsHistory.NonZeroAverage();
|
|
}
|
|
|
|
void VoIPController::SetCallbacks(VoIPController::Callbacks callbacks){
|
|
this->callbacks=callbacks;
|
|
if(callbacks.connectionStateChanged)
|
|
callbacks.connectionStateChanged(this, state);
|
|
}
|
|
|
|
void VoIPController::SetAudioOutputGainControlEnabled(bool enabled){
|
|
LOGD("New output AGC state: %d", enabled);
|
|
}
|
|
|
|
uint32_t VoIPController::GetPeerCapabilities(){
|
|
return peerCapabilities;
|
|
}
|
|
|
|
void VoIPController::SendGroupCallKey(unsigned char *key){
|
|
if(!(peerCapabilities & TGVOIP_PEER_CAP_GROUP_CALLS)){
|
|
LOGE("Tried to send group call key but peer isn't capable of them");
|
|
return;
|
|
}
|
|
if(didSendGroupCallKey){
|
|
LOGE("Tried to send a group call key repeatedly");
|
|
return;
|
|
}
|
|
if(!isOutgoing){
|
|
LOGE("You aren't supposed to send group call key in an incoming call, use VoIPController::RequestCallUpgrade() instead");
|
|
return;
|
|
}
|
|
didSendGroupCallKey=true;
|
|
Buffer buf(256);
|
|
buf.CopyFrom(key, 0, 256);
|
|
SendExtra(buf, EXTRA_TYPE_GROUP_CALL_KEY);
|
|
}
|
|
|
|
void VoIPController::RequestCallUpgrade(){
|
|
if(!(peerCapabilities & TGVOIP_PEER_CAP_GROUP_CALLS)){
|
|
LOGE("Tried to send group call key but peer isn't capable of them");
|
|
return;
|
|
}
|
|
if(didSendUpgradeRequest){
|
|
LOGE("Tried to send upgrade request repeatedly");
|
|
return;
|
|
}
|
|
if(isOutgoing){
|
|
LOGE("You aren't supposed to send an upgrade request in an outgoing call, generate an encryption key and use VoIPController::SendGroupCallKey instead");
|
|
return;
|
|
}
|
|
didSendUpgradeRequest=true;
|
|
Buffer empty(0);
|
|
SendExtra(empty, EXTRA_TYPE_REQUEST_GROUP);
|
|
}
|
|
|
|
void VoIPController::SetEchoCancellationStrength(int strength){
|
|
echoCancellationStrength=strength;
|
|
if(echoCanceller)
|
|
echoCanceller->SetAECStrength(strength);
|
|
}
|
|
|
|
#if defined(TGVOIP_USE_CALLBACK_AUDIO_IO)
|
|
void VoIPController::SetAudioDataCallbacks(std::function<void(int16_t*, size_t)> input, std::function<void(int16_t*, size_t)> output){
|
|
audioInputDataCallback=input;
|
|
audioOutputDataCallback=output;
|
|
}
|
|
#endif
|
|
|
|
int VoIPController::GetConnectionState(){
|
|
return state;
|
|
}
|
|
|
|
void VoIPController::SetConfig(const Config& cfg){
|
|
config=cfg;
|
|
if(tgvoipLogFile){
|
|
fclose(tgvoipLogFile);
|
|
tgvoipLogFile=NULL;
|
|
}
|
|
if(!config.logFilePath.empty()){
|
|
#ifndef _WIN32
|
|
tgvoipLogFile=fopen(config.logFilePath.c_str(), "a");
|
|
#else
|
|
if(_wfopen_s(&tgvoipLogFile, config.logFilePath.c_str(), L"a")!=0){
|
|
tgvoipLogFile=NULL;
|
|
}
|
|
#endif
|
|
tgvoip_log_file_write_header(tgvoipLogFile);
|
|
}else{
|
|
tgvoipLogFile=NULL;
|
|
}
|
|
if(statsDump){
|
|
fclose(statsDump);
|
|
statsDump=NULL;
|
|
}
|
|
if(!config.statsDumpFilePath.empty()){
|
|
#ifndef _WIN32
|
|
statsDump=fopen(config.statsDumpFilePath.c_str(), "w");
|
|
#else
|
|
if(_wfopen_s(&statsDump, config.statsDumpFilePath.c_str(), L"w")!=0){
|
|
statsDump=NULL;
|
|
}
|
|
#endif
|
|
if(statsDump)
|
|
fprintf(statsDump, "Time\tRTT\tLRSeq\tLSSeq\tLASeq\tLostR\tLostS\tCWnd\tBitrate\tLoss%%\tJitter\tJDelay\tAJDelay\n");
|
|
//else
|
|
// LOGW("Failed to open stats dump file %s for writing", config.statsDumpFilePath.c_str());
|
|
}else{
|
|
statsDump=NULL;
|
|
}
|
|
UpdateDataSavingState();
|
|
UpdateAudioBitrateLimit();
|
|
}
|
|
|
|
void VoIPController::SetPersistentState(vector<uint8_t> state){
|
|
using namespace json11;
|
|
|
|
if(state.empty())
|
|
return;
|
|
string jsonErr;
|
|
string json=string(state.begin(), state.end());
|
|
Json _obj=Json::parse(json, jsonErr);
|
|
if(!jsonErr.empty()){
|
|
LOGE("Error parsing persistable state: %s", jsonErr.c_str());
|
|
return;
|
|
}
|
|
Json::object obj=_obj.object_items();
|
|
if(obj.find("proxy")!=obj.end()){
|
|
Json::object proxy=obj["proxy"].object_items();
|
|
lastTestedProxyServer=proxy["server"].string_value();
|
|
proxySupportsUDP=proxy["udp"].bool_value();
|
|
proxySupportsTCP=proxy["tcp"].bool_value();
|
|
}
|
|
}
|
|
|
|
vector<uint8_t> VoIPController::GetPersistentState(){
|
|
using namespace json11;
|
|
|
|
Json::object obj=Json::object{
|
|
{"ver", 1},
|
|
};
|
|
if(proxyProtocol==PROXY_SOCKS5){
|
|
char pbuf[128];
|
|
snprintf(pbuf, sizeof(pbuf), "%s:%u", proxyAddress.c_str(), proxyPort);
|
|
obj.insert({"proxy", Json::object{
|
|
{"server", string(pbuf)},
|
|
{"udp", proxySupportsUDP},
|
|
{"tcp", proxySupportsTCP}
|
|
}});
|
|
}
|
|
string _jstr=Json(obj).dump();
|
|
const char* jstr=_jstr.c_str();
|
|
return vector<uint8_t>(jstr, jstr+strlen(jstr));
|
|
}
|
|
|
|
void VoIPController::SetOutputVolume(float level){
|
|
outputVolume.SetLevel(level);
|
|
}
|
|
|
|
void VoIPController::SetInputVolume(float level){
|
|
inputVolume.SetLevel(level);
|
|
}
|
|
|
|
#if defined(__APPLE__) && TARGET_OS_OSX
|
|
void VoIPController::SetAudioOutputDuckingEnabled(bool enabled){
|
|
macAudioDuckingEnabled=enabled;
|
|
audio::AudioUnitIO* osxAudio=dynamic_cast<audio::AudioUnitIO*>(audioIO);
|
|
if(osxAudio){
|
|
osxAudio->SetDuckingEnabled(enabled);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#pragma mark - Internal intialization
|
|
|
|
void VoIPController::InitializeTimers(){
|
|
initTimeoutID=messageThread.Post([this]{
|
|
LOGW("Init timeout, disconnecting");
|
|
lastError=ERROR_TIMEOUT;
|
|
SetState(STATE_FAILED);
|
|
}, config.initTimeout);
|
|
|
|
if(!config.statsDumpFilePath.empty()){
|
|
messageThread.Post([this]{
|
|
if(statsDump && incomingStreams.size()==1){
|
|
shared_ptr<JitterBuffer>& jitterBuffer=incomingStreams[0]->jitterBuffer;
|
|
//fprintf(statsDump, "Time\tRTT\tLISeq\tLASeq\tCWnd\tBitrate\tJitter\tJDelay\tAJDelay\n");
|
|
fprintf(statsDump, "%.3f\t%.3f\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%.3f\t%.3f\t%.3f\n",
|
|
GetCurrentTime()-connectionInitTime,
|
|
endpoints.at(currentEndpoint).rtts[0],
|
|
lastRemoteSeq,
|
|
(uint32_t)seq,
|
|
lastRemoteAckSeq,
|
|
recvLossCount,
|
|
conctl ? conctl->GetSendLossCount() : 0,
|
|
conctl ? (int)conctl->GetInflightDataSize() : 0,
|
|
encoder ? encoder->GetBitrate() : 0,
|
|
encoder ? encoder->GetPacketLoss() : 0,
|
|
jitterBuffer ? jitterBuffer->GetLastMeasuredJitter() : 0,
|
|
jitterBuffer ? jitterBuffer->GetLastMeasuredDelay()*0.06 : 0,
|
|
jitterBuffer ? jitterBuffer->GetAverageDelay()*0.06 : 0);
|
|
}
|
|
}, 0.1, 0.1);
|
|
}
|
|
|
|
messageThread.Post(std::bind(&VoIPController::SendRelayPings, this), 0.0, 2.0);
|
|
}
|
|
|
|
void VoIPController::RunSendThread(){
|
|
InitializeAudio();
|
|
InitializeTimers();
|
|
SendInit();
|
|
LOGI("=== send thread exiting ===");
|
|
}
|
|
|
|
#pragma mark - Miscellaneous
|
|
|
|
void VoIPController::SetState(int state){
|
|
this->state=state;
|
|
LOGV("Call state changed to %d", state);
|
|
stateChangeTime=GetCurrentTime();
|
|
messageThread.Post([this, state]{
|
|
if(callbacks.connectionStateChanged)
|
|
callbacks.connectionStateChanged(this, state);
|
|
});
|
|
if(state==STATE_ESTABLISHED){
|
|
SetMicMute(micMuted);
|
|
if(!wasEstablished){
|
|
wasEstablished=true;
|
|
messageThread.Post(std::bind(&VoIPController::UpdateRTT, this), 0.1, 0.5);
|
|
messageThread.Post(std::bind(&VoIPController::UpdateAudioBitrate, this), 0.0, 0.3);
|
|
messageThread.Post(std::bind(&VoIPController::UpdateCongestion, this), 0.0, 1.0);
|
|
messageThread.Post(std::bind(&VoIPController::UpdateSignalBars, this), 1.0, 1.0);
|
|
messageThread.Post(std::bind(&VoIPController::TickJitterBufferAngCongestionControl, this), 0.0, 0.1);
|
|
}
|
|
}
|
|
}
|
|
|
|
void VoIPController::SendStreamFlags(Stream& stream){
|
|
BufferOutputStream s(5);
|
|
s.WriteByte(stream.id);
|
|
uint32_t flags=0;
|
|
if(stream.enabled)
|
|
flags|=STREAM_FLAG_ENABLED;
|
|
if(stream.extraECEnabled)
|
|
flags|=STREAM_FLAG_EXTRA_EC;
|
|
s.WriteInt32(flags);
|
|
LOGV("My stream state: id %u flags %u", (unsigned int)stream.id, (unsigned int)flags);
|
|
Buffer buf(move(s));
|
|
SendExtra(buf, EXTRA_TYPE_STREAM_FLAGS);
|
|
}
|
|
|
|
shared_ptr<VoIPController::Stream> VoIPController::GetStreamByType(int type, bool outgoing){
|
|
shared_ptr<Stream> s;
|
|
for(shared_ptr<Stream>& ss:(outgoing ? outgoingStreams : incomingStreams)){
|
|
if(ss->type==type)
|
|
return ss;
|
|
}
|
|
return s;
|
|
}
|
|
|
|
CellularCarrierInfo VoIPController::GetCarrierInfo(){
|
|
#if defined(__APPLE__) && TARGET_OS_IOS
|
|
return DarwinSpecific::GetCarrierInfo();
|
|
#elif defined(__ANDROID__)
|
|
CellularCarrierInfo carrier;
|
|
jni::DoWithJNI([&carrier](JNIEnv* env){
|
|
jmethodID getCarrierInfoMethod=env->GetStaticMethodID(jniUtilitiesClass, "getCarrierInfo", "()[Ljava/lang/String;");
|
|
jobjectArray jinfo=(jobjectArray) env->CallStaticObjectMethod(jniUtilitiesClass, getCarrierInfoMethod);
|
|
if(jinfo && env->GetArrayLength(jinfo)==4){
|
|
carrier.name=jni::JavaStringToStdString(env, (jstring)env->GetObjectArrayElement(jinfo, 0));
|
|
carrier.countryCode=jni::JavaStringToStdString(env, (jstring)env->GetObjectArrayElement(jinfo, 1));
|
|
carrier.mcc=jni::JavaStringToStdString(env, (jstring)env->GetObjectArrayElement(jinfo, 2));
|
|
carrier.mnc=jni::JavaStringToStdString(env, (jstring)env->GetObjectArrayElement(jinfo, 3));
|
|
}else{
|
|
LOGW("Failed to get carrier info");
|
|
}
|
|
});
|
|
return carrier;
|
|
#else
|
|
return CellularCarrierInfo();
|
|
#endif
|
|
}
|
|
|
|
#pragma mark - Audio I/O
|
|
|
|
void VoIPController::AudioInputCallback(unsigned char* data, size_t length, unsigned char* secondaryData, size_t secondaryLength, void* param){
|
|
((VoIPController*)param)->HandleAudioInput(data, length, secondaryData, secondaryLength);
|
|
}
|
|
|
|
void VoIPController::HandleAudioInput(unsigned char *data, size_t len, unsigned char* secondaryData, size_t secondaryLen){
|
|
if(stopping)
|
|
return;
|
|
unsentStreamPacketsHistory.Add(static_cast<unsigned int>(unsentStreamPackets));
|
|
if(unsentStreamPacketsHistory.Average()>=maxUnsentStreamPackets && !videoSource){
|
|
LOGW("Resetting stalled send queue");
|
|
sendQueue.clear();
|
|
unsentStreamPacketsHistory.Reset();
|
|
unsentStreamPackets=0;
|
|
}
|
|
if(waitingForAcks || dontSendPackets>0 || ((unsigned int)unsentStreamPackets>=maxUnsentStreamPackets /*&& endpoints[currentEndpoint].type==Endpoint::Type::TCP_RELAY*/)){
|
|
LOGV("waiting for queue, dropping outgoing audio packet, %d %d %d [%d]", (unsigned int)unsentStreamPackets, waitingForAcks, dontSendPackets, maxUnsentStreamPackets);
|
|
return;
|
|
}
|
|
//LOGV("Audio packet size %u", (unsigned int)len);
|
|
if(!receivedInitAck)
|
|
return;
|
|
|
|
BufferOutputStream pkt(1500);
|
|
|
|
bool hasExtraFEC=peerVersion>=7 && secondaryData && secondaryLen && shittyInternetMode;
|
|
unsigned char flags=(unsigned char) (len>255 || hasExtraFEC ? STREAM_DATA_FLAG_LEN16 : 0);
|
|
pkt.WriteByte((unsigned char) (1 | flags)); // streamID + flags
|
|
if(len>255 || hasExtraFEC){
|
|
int16_t lenAndFlags=static_cast<int16_t>(len);
|
|
if(hasExtraFEC)
|
|
lenAndFlags|=STREAM_DATA_XFLAG_EXTRA_FEC;
|
|
pkt.WriteInt16(lenAndFlags);
|
|
}else{
|
|
pkt.WriteByte((unsigned char) len);
|
|
}
|
|
pkt.WriteInt32(audioTimestampOut);
|
|
pkt.WriteBytes(data, len);
|
|
|
|
if(hasExtraFEC){
|
|
Buffer ecBuf(secondaryLen);
|
|
ecBuf.CopyFrom(secondaryData, 0, secondaryLen);
|
|
ecAudioPackets.push_back(move(ecBuf));
|
|
while(ecAudioPackets.size()>4)
|
|
ecAudioPackets.erase(ecAudioPackets.begin());
|
|
pkt.WriteByte((unsigned char)MIN(ecAudioPackets.size(), extraEcLevel));
|
|
for(vector<Buffer>::iterator ecData=ecAudioPackets.begin()+MAX(0, (int)ecAudioPackets.size()-extraEcLevel);ecData!=ecAudioPackets.end();++ecData){
|
|
pkt.WriteByte((unsigned char)ecData->Length());
|
|
pkt.WriteBytes(*ecData);
|
|
}
|
|
}
|
|
|
|
unsentStreamPackets++;
|
|
PendingOutgoingPacket p{
|
|
/*.seq=*/GenerateOutSeq(),
|
|
/*.type=*/PKT_STREAM_DATA,
|
|
/*.len=*/pkt.GetLength(),
|
|
/*.data=*/Buffer(move(pkt)),
|
|
/*.endpoint=*/0,
|
|
};
|
|
|
|
conctl->PacketSent(p.seq, p.len);
|
|
|
|
SendOrEnqueuePacket(move(p));
|
|
if(peerVersion<7 && secondaryData && secondaryLen && shittyInternetMode){
|
|
Buffer ecBuf(secondaryLen);
|
|
ecBuf.CopyFrom(secondaryData, 0, secondaryLen);
|
|
ecAudioPackets.push_back(move(ecBuf));
|
|
while(ecAudioPackets.size()>4)
|
|
ecAudioPackets.erase(ecAudioPackets.begin());
|
|
pkt=BufferOutputStream(1500);
|
|
pkt.WriteByte(outgoingStreams[0]->id);
|
|
pkt.WriteInt32(audioTimestampOut);
|
|
pkt.WriteByte((unsigned char)MIN(ecAudioPackets.size(), extraEcLevel));
|
|
for(vector<Buffer>::iterator ecData=ecAudioPackets.begin()+MAX(0, (int)ecAudioPackets.size()-extraEcLevel);ecData!=ecAudioPackets.end();++ecData){
|
|
pkt.WriteByte((unsigned char)ecData->Length());
|
|
pkt.WriteBytes(*ecData);
|
|
}
|
|
|
|
PendingOutgoingPacket p{
|
|
GenerateOutSeq(),
|
|
PKT_STREAM_EC,
|
|
pkt.GetLength(),
|
|
Buffer(move(pkt)),
|
|
0
|
|
};
|
|
SendOrEnqueuePacket(move(p));
|
|
}
|
|
|
|
audioTimestampOut+=outgoingStreams[0]->frameDuration;
|
|
}
|
|
|
|
void VoIPController::InitializeAudio(){
|
|
double t=GetCurrentTime();
|
|
shared_ptr<Stream> outgoingAudioStream=GetStreamByType(STREAM_TYPE_AUDIO, true);
|
|
LOGI("before create audio io");
|
|
audioIO=audio::AudioIO::Create(currentAudioInput, currentAudioOutput);
|
|
audioInput=audioIO->GetInput();
|
|
audioOutput=audioIO->GetOutput();
|
|
#ifdef __ANDROID__
|
|
audio::AudioInputAndroid* androidInput=dynamic_cast<audio::AudioInputAndroid*>(audioInput);
|
|
if(androidInput){
|
|
unsigned int effects=androidInput->GetEnabledEffects();
|
|
if(!(effects & audio::AudioInputAndroid::EFFECT_AEC)){
|
|
config.enableAEC=true;
|
|
LOGI("Forcing software AEC because built-in is not good");
|
|
}
|
|
if(!(effects & audio::AudioInputAndroid::EFFECT_NS)){
|
|
config.enableNS=true;
|
|
LOGI("Forcing software NS because built-in is not good");
|
|
}
|
|
}
|
|
#elif defined(__APPLE__) && TARGET_OS_OSX
|
|
SetAudioOutputDuckingEnabled(macAudioDuckingEnabled);
|
|
#endif
|
|
LOGI("AEC: %d NS: %d AGC: %d", config.enableAEC, config.enableNS, config.enableAGC);
|
|
echoCanceller=new EchoCanceller(config.enableAEC, config.enableNS, config.enableAGC);
|
|
encoder=new OpusEncoder(audioInput, true);
|
|
encoder->SetCallback(AudioInputCallback, this);
|
|
encoder->SetOutputFrameDuration(outgoingAudioStream->frameDuration);
|
|
encoder->SetEchoCanceller(echoCanceller);
|
|
encoder->SetSecondaryEncoderEnabled(false);
|
|
if(config.enableVolumeControl){
|
|
encoder->AddAudioEffect(&inputVolume);
|
|
}
|
|
|
|
#if defined(TGVOIP_USE_CALLBACK_AUDIO_IO)
|
|
dynamic_cast<audio::AudioInputCallback*>(audioInput)->SetDataCallback(audioInputDataCallback);
|
|
dynamic_cast<audio::AudioOutputCallback*>(audioOutput)->SetDataCallback(audioOutputDataCallback);
|
|
#endif
|
|
|
|
if(!audioOutput->IsInitialized()){
|
|
LOGE("Error initializing audio playback");
|
|
lastError=ERROR_AUDIO_IO;
|
|
|
|
SetState(STATE_FAILED);
|
|
return;
|
|
}
|
|
UpdateAudioBitrateLimit();
|
|
LOGI("Audio initialization took %f seconds", GetCurrentTime()-t);
|
|
}
|
|
|
|
void VoIPController::StartAudio(){
|
|
OnAudioOutputReady();
|
|
|
|
encoder->Start();
|
|
if(!micMuted){
|
|
audioInput->Start();
|
|
if(!audioInput->IsInitialized()){
|
|
LOGE("Erorr initializing audio capture");
|
|
lastError=ERROR_AUDIO_IO;
|
|
|
|
SetState(STATE_FAILED);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void VoIPController::OnAudioOutputReady(){
|
|
LOGI("Audio I/O ready");
|
|
shared_ptr<Stream>& stm=incomingStreams[0];
|
|
stm->decoder=make_shared<OpusDecoder>(audioOutput, true, peerVersion>=6);
|
|
stm->decoder->SetEchoCanceller(echoCanceller);
|
|
if(config.enableVolumeControl){
|
|
stm->decoder->AddAudioEffect(&outputVolume);
|
|
}
|
|
stm->decoder->SetJitterBuffer(stm->jitterBuffer);
|
|
stm->decoder->SetFrameDuration(stm->frameDuration);
|
|
stm->decoder->Start();
|
|
}
|
|
|
|
void VoIPController::UpdateAudioOutputState(){
|
|
bool areAnyAudioStreamsEnabled=false;
|
|
for(vector<shared_ptr<Stream>>::iterator s=incomingStreams.begin();s!=incomingStreams.end();++s){
|
|
if((*s)->type==STREAM_TYPE_AUDIO && (*s)->enabled)
|
|
areAnyAudioStreamsEnabled=true;
|
|
}
|
|
if(audioOutput){
|
|
LOGV("New audio output state: %d", areAnyAudioStreamsEnabled);
|
|
if(audioOutput->IsPlaying()!=areAnyAudioStreamsEnabled){
|
|
if(areAnyAudioStreamsEnabled)
|
|
audioOutput->Start();
|
|
else
|
|
audioOutput->Stop();
|
|
}
|
|
}
|
|
}
|
|
|
|
#pragma mark - Bandwidth management
|
|
|
|
void VoIPController::UpdateAudioBitrateLimit(){
|
|
if(encoder){
|
|
if(dataSavingMode || dataSavingRequestedByPeer){
|
|
maxBitrate=maxAudioBitrateSaving;
|
|
encoder->SetBitrate(initAudioBitrateSaving);
|
|
}else if(networkType==NET_TYPE_GPRS){
|
|
maxBitrate=maxAudioBitrateGPRS;
|
|
encoder->SetBitrate(initAudioBitrateGPRS);
|
|
}else if(networkType==NET_TYPE_EDGE){
|
|
maxBitrate=maxAudioBitrateEDGE;
|
|
encoder->SetBitrate(initAudioBitrateEDGE);
|
|
}else{
|
|
maxBitrate=maxAudioBitrate;
|
|
encoder->SetBitrate(initAudioBitrate);
|
|
}
|
|
encoder->SetVadMode(dataSavingMode || dataSavingRequestedByPeer);
|
|
if(echoCanceller)
|
|
echoCanceller->SetVoiceDetectionEnabled(dataSavingMode || dataSavingRequestedByPeer);
|
|
}
|
|
}
|
|
|
|
void VoIPController::UpdateDataSavingState(){
|
|
if(config.dataSaving==DATA_SAVING_ALWAYS){
|
|
dataSavingMode=true;
|
|
}else if(config.dataSaving==DATA_SAVING_MOBILE){
|
|
dataSavingMode=networkType==NET_TYPE_GPRS || networkType==NET_TYPE_EDGE ||
|
|
networkType==NET_TYPE_3G || networkType==NET_TYPE_HSPA || networkType==NET_TYPE_LTE || networkType==NET_TYPE_OTHER_MOBILE;
|
|
}else{
|
|
dataSavingMode=false;
|
|
}
|
|
LOGI("update data saving mode, config %d, enabled %d, reqd by peer %d", config.dataSaving, dataSavingMode, dataSavingRequestedByPeer);
|
|
}
|
|
|
|
#pragma mark - Networking & crypto
|
|
|
|
uint32_t VoIPController::GenerateOutSeq(){
|
|
return seq++;
|
|
}
|
|
|
|
void VoIPController::WritePacketHeader(uint32_t pseq, BufferOutputStream *s, unsigned char type, uint32_t length){
|
|
uint32_t acks=0;
|
|
int i;
|
|
for(i=0;i<32;i++){
|
|
if(recvPacketTimes[i]>0)
|
|
acks|=1;
|
|
if(i<31)
|
|
acks<<=1;
|
|
}
|
|
|
|
if(peerVersion>=8 || (!peerVersion && connectionMaxLayer>=92)){
|
|
s->WriteByte(type);
|
|
s->WriteInt32(lastRemoteSeq);
|
|
s->WriteInt32(pseq);
|
|
s->WriteInt32(acks);
|
|
MutexGuard m(queuedPacketsMutex);
|
|
if(currentExtras.empty()){
|
|
s->WriteByte(0);
|
|
}else{
|
|
s->WriteByte(XPFLAG_HAS_EXTRA);
|
|
s->WriteByte(static_cast<unsigned char>(currentExtras.size()));
|
|
for(vector<UnacknowledgedExtraData>::iterator x=currentExtras.begin(); x!=currentExtras.end(); ++x){
|
|
LOGV("Writing extra into header: type %u, length %lu", x->type, x->data.Length());
|
|
assert(x->data.Length()<=254);
|
|
s->WriteByte(static_cast<unsigned char>(x->data.Length()+1));
|
|
s->WriteByte(x->type);
|
|
s->WriteBytes(*x->data, x->data.Length());
|
|
if(x->firstContainingSeq==0)
|
|
x->firstContainingSeq=pseq;
|
|
}
|
|
}
|
|
}else{
|
|
if(state==STATE_WAIT_INIT || state==STATE_WAIT_INIT_ACK){
|
|
s->WriteInt32(TLID_DECRYPTED_AUDIO_BLOCK);
|
|
int64_t randomID;
|
|
crypto.rand_bytes((uint8_t *) &randomID, 8);
|
|
s->WriteInt64(randomID);
|
|
unsigned char randBytes[7];
|
|
crypto.rand_bytes(randBytes, 7);
|
|
s->WriteByte(7);
|
|
s->WriteBytes(randBytes, 7);
|
|
uint32_t pflags=PFLAG_HAS_RECENT_RECV | PFLAG_HAS_SEQ;
|
|
if(length>0)
|
|
pflags|=PFLAG_HAS_DATA;
|
|
if(state==STATE_WAIT_INIT || state==STATE_WAIT_INIT_ACK){
|
|
pflags|=PFLAG_HAS_CALL_ID | PFLAG_HAS_PROTO;
|
|
}
|
|
pflags|=((uint32_t) type) << 24;
|
|
s->WriteInt32(pflags);
|
|
|
|
if(pflags & PFLAG_HAS_CALL_ID){
|
|
s->WriteBytes(callID, 16);
|
|
}
|
|
s->WriteInt32(lastRemoteSeq);
|
|
s->WriteInt32(pseq);
|
|
s->WriteInt32(acks);
|
|
if(pflags & PFLAG_HAS_PROTO){
|
|
s->WriteInt32(PROTOCOL_NAME);
|
|
}
|
|
if(length>0){
|
|
if(length<=253){
|
|
s->WriteByte((unsigned char) length);
|
|
}else{
|
|
s->WriteByte(254);
|
|
s->WriteByte((unsigned char) (length & 0xFF));
|
|
s->WriteByte((unsigned char) ((length >> 8) & 0xFF));
|
|
s->WriteByte((unsigned char) ((length >> 16) & 0xFF));
|
|
}
|
|
}
|
|
}else{
|
|
s->WriteInt32(TLID_SIMPLE_AUDIO_BLOCK);
|
|
int64_t randomID;
|
|
crypto.rand_bytes((uint8_t *) &randomID, 8);
|
|
s->WriteInt64(randomID);
|
|
unsigned char randBytes[7];
|
|
crypto.rand_bytes(randBytes, 7);
|
|
s->WriteByte(7);
|
|
s->WriteBytes(randBytes, 7);
|
|
uint32_t lenWithHeader=length+13;
|
|
if(lenWithHeader>0){
|
|
if(lenWithHeader<=253){
|
|
s->WriteByte((unsigned char) lenWithHeader);
|
|
}else{
|
|
s->WriteByte(254);
|
|
s->WriteByte((unsigned char) (lenWithHeader & 0xFF));
|
|
s->WriteByte((unsigned char) ((lenWithHeader >> 8) & 0xFF));
|
|
s->WriteByte((unsigned char) ((lenWithHeader >> 16) & 0xFF));
|
|
}
|
|
}
|
|
s->WriteByte(type);
|
|
s->WriteInt32(lastRemoteSeq);
|
|
s->WriteInt32(pseq);
|
|
s->WriteInt32(acks);
|
|
if(peerVersion>=6){
|
|
MutexGuard m(queuedPacketsMutex);
|
|
if(currentExtras.empty()){
|
|
s->WriteByte(0);
|
|
}else{
|
|
s->WriteByte(XPFLAG_HAS_EXTRA);
|
|
s->WriteByte(static_cast<unsigned char>(currentExtras.size()));
|
|
for(vector<UnacknowledgedExtraData>::iterator x=currentExtras.begin(); x!=currentExtras.end(); ++x){
|
|
LOGV("Writing extra into header: type %u, length %lu", x->type, x->data.Length());
|
|
assert(x->data.Length()<=254);
|
|
s->WriteByte(static_cast<unsigned char>(x->data.Length()+1));
|
|
s->WriteByte(x->type);
|
|
s->WriteBytes(*x->data, x->data.Length());
|
|
if(x->firstContainingSeq==0)
|
|
x->firstContainingSeq=pseq;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
MutexGuard m(queuedPacketsMutex);
|
|
recentOutgoingPackets.push_back(RecentOutgoingPacket{
|
|
pseq,
|
|
0,
|
|
GetCurrentTime(),
|
|
0
|
|
});
|
|
while(recentOutgoingPackets.size()>MAX_RECENT_PACKETS)
|
|
recentOutgoingPackets.erase(recentOutgoingPackets.begin());
|
|
lastSentSeq=pseq;
|
|
//LOGI("packet header size %d", s->GetLength());
|
|
}
|
|
|
|
|
|
|
|
void VoIPController::SendInit(){
|
|
{
|
|
MutexGuard m(endpointsMutex);
|
|
uint32_t initSeq=GenerateOutSeq();
|
|
for(pair<const int64_t, Endpoint>& _e:endpoints){
|
|
Endpoint& e=_e.second;
|
|
if(e.type==Endpoint::Type::TCP_RELAY && !useTCP)
|
|
continue;
|
|
BufferOutputStream out(1024);
|
|
out.WriteInt32(PROTOCOL_VERSION);
|
|
out.WriteInt32(MIN_PROTOCOL_VERSION);
|
|
uint32_t flags=0;
|
|
if(config.enableCallUpgrade)
|
|
flags|=INIT_FLAG_GROUP_CALLS_SUPPORTED;
|
|
if(config.enableVideoReceive)
|
|
flags|=INIT_FLAG_VIDEO_RECV_SUPPORTED;
|
|
if(config.enableVideoSend)
|
|
flags|=INIT_FLAG_VIDEO_SEND_SUPPORTED;
|
|
if(dataSavingMode)
|
|
flags|=INIT_FLAG_DATA_SAVING_ENABLED;
|
|
out.WriteInt32(flags);
|
|
if(connectionMaxLayer<74){
|
|
out.WriteByte(2); // audio codecs count
|
|
out.WriteByte(CODEC_OPUS_OLD);
|
|
out.WriteByte(0);
|
|
out.WriteByte(0);
|
|
out.WriteByte(0);
|
|
out.WriteInt32(CODEC_OPUS);
|
|
out.WriteByte(0); // video codecs count (decode)
|
|
out.WriteByte(0); // video codecs count (encode)
|
|
}else{
|
|
out.WriteByte(1);
|
|
out.WriteInt32(CODEC_OPUS);
|
|
vector<uint32_t> decoders=config.enableVideoReceive ? video::VideoRenderer::GetAvailableDecoders() : vector<uint32_t>();
|
|
vector<uint32_t> encoders=config.enableVideoSend ? video::VideoSource::GetAvailableEncoders() : vector<uint32_t>();
|
|
out.WriteByte((unsigned char)decoders.size());
|
|
for(uint32_t id:decoders){
|
|
out.WriteInt32(id);
|
|
}
|
|
if(connectionMaxLayer>=92)
|
|
out.WriteByte((unsigned char)video::VideoRenderer::GetMaximumResolution());
|
|
else
|
|
out.WriteByte(0);
|
|
/*out.WriteByte((unsigned char)encoders.size());
|
|
for(uint32_t id:encoders){
|
|
out.WriteInt32(id);
|
|
}*/
|
|
}
|
|
SendOrEnqueuePacket(PendingOutgoingPacket{
|
|
/*.seq=*/initSeq,
|
|
/*.type=*/PKT_INIT,
|
|
/*.len=*/out.GetLength(),
|
|
/*.data=*/Buffer(move(out)),
|
|
/*.endpoint=*/e.id
|
|
});
|
|
}
|
|
}
|
|
if(state==STATE_WAIT_INIT)
|
|
SetState(STATE_WAIT_INIT_ACK);
|
|
messageThread.Post([this]{
|
|
if(state==STATE_WAIT_INIT_ACK){
|
|
SendInit();
|
|
}
|
|
}, 0.5);
|
|
}
|
|
|
|
void VoIPController::InitUDPProxy(){
|
|
if(realUdpSocket!=udpSocket){
|
|
udpSocket->Close();
|
|
delete udpSocket;
|
|
udpSocket=realUdpSocket;
|
|
}
|
|
char sbuf[128];
|
|
snprintf(sbuf, sizeof(sbuf), "%s:%u", proxyAddress.c_str(), proxyPort);
|
|
string proxyHostPort(sbuf);
|
|
if(proxyHostPort==lastTestedProxyServer && !proxySupportsUDP){
|
|
LOGI("Proxy does not support UDP - using UDP directly instead");
|
|
ResetUdpAvailability();
|
|
return;
|
|
}
|
|
|
|
NetworkSocket* tcp=NetworkSocket::Create(PROTO_TCP);
|
|
tcp->Connect(resolvedProxyAddress, proxyPort);
|
|
|
|
vector<NetworkSocket*> writeSockets;
|
|
vector<NetworkSocket*> readSockets;
|
|
vector<NetworkSocket*> errorSockets;
|
|
|
|
while(!tcp->IsFailed() && !tcp->IsReadyToSend()){
|
|
writeSockets.push_back(tcp);
|
|
if(!NetworkSocket::Select(readSockets, writeSockets, errorSockets, selectCanceller)){
|
|
LOGW("Select canceled while waiting for proxy control socket to connect");
|
|
delete tcp;
|
|
return;
|
|
}
|
|
}
|
|
LOGV("UDP proxy control socket ready to send");
|
|
NetworkSocketSOCKS5Proxy* udpProxy=new NetworkSocketSOCKS5Proxy(tcp, realUdpSocket, proxyUsername, proxyPassword);
|
|
udpProxy->OnReadyToSend();
|
|
writeSockets.clear();
|
|
while(!udpProxy->IsFailed() && !tcp->IsFailed() && !udpProxy->IsReadyToSend()){
|
|
readSockets.clear();
|
|
errorSockets.clear();
|
|
readSockets.push_back(tcp);
|
|
errorSockets.push_back(tcp);
|
|
if(!NetworkSocket::Select(readSockets, writeSockets, errorSockets, selectCanceller)){
|
|
LOGW("Select canceled while waiting for UDP proxy to initialize");
|
|
delete udpProxy;
|
|
return;
|
|
}
|
|
if(!readSockets.empty())
|
|
udpProxy->OnReadyToReceive();
|
|
}
|
|
LOGV("UDP proxy initialized");
|
|
|
|
if(udpProxy->IsFailed()){
|
|
udpProxy->Close();
|
|
delete udpProxy;
|
|
proxySupportsUDP=false;
|
|
}else{
|
|
udpSocket=udpProxy;
|
|
}
|
|
ResetUdpAvailability();
|
|
}
|
|
|
|
void VoIPController::RunRecvThread(){
|
|
LOGI("Receive thread starting");
|
|
Buffer buffer(1500);
|
|
NetworkPacket packet={0};
|
|
if(proxyProtocol==PROXY_SOCKS5){
|
|
resolvedProxyAddress=NetworkSocket::ResolveDomainName(proxyAddress);
|
|
if(!resolvedProxyAddress){
|
|
LOGW("Error resolving proxy address %s", proxyAddress.c_str());
|
|
SetState(STATE_FAILED);
|
|
return;
|
|
}
|
|
}else{
|
|
udpConnectivityState=UDP_PING_PENDING;
|
|
udpPingTimeoutID=messageThread.Post(std::bind(&VoIPController::SendUdpPings, this), 0.0, 0.5);
|
|
}
|
|
while(runReceiver){
|
|
|
|
if(proxyProtocol==PROXY_SOCKS5 && needReInitUdpProxy){
|
|
InitUDPProxy();
|
|
needReInitUdpProxy=false;
|
|
}
|
|
|
|
packet.data=*buffer;
|
|
packet.length=buffer.Length();
|
|
|
|
vector<NetworkSocket*> readSockets;
|
|
vector<NetworkSocket*> errorSockets;
|
|
vector<NetworkSocket*> writeSockets;
|
|
readSockets.push_back(udpSocket);
|
|
errorSockets.push_back(realUdpSocket);
|
|
if(!realUdpSocket->IsReadyToSend())
|
|
writeSockets.push_back(realUdpSocket);
|
|
|
|
{
|
|
MutexGuard m(endpointsMutex);
|
|
for(pair<const int64_t, Endpoint>& _e:endpoints){
|
|
const Endpoint& e=_e.second;
|
|
if(e.type==Endpoint::Type::TCP_RELAY){
|
|
if(e.socket){
|
|
readSockets.push_back(e.socket);
|
|
errorSockets.push_back(e.socket);
|
|
if(!e.socket->IsReadyToSend()){
|
|
NetworkSocketSOCKS5Proxy* proxy=dynamic_cast<NetworkSocketSOCKS5Proxy*>(e.socket);
|
|
if(!proxy || proxy->NeedSelectForSending())
|
|
writeSockets.push_back(e.socket);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
{
|
|
MutexGuard m(socketSelectMutex);
|
|
bool selRes=NetworkSocket::Select(readSockets, writeSockets, errorSockets, selectCanceller);
|
|
if(!selRes){
|
|
LOGV("Select canceled");
|
|
continue;
|
|
}
|
|
}
|
|
if(!runReceiver)
|
|
return;
|
|
|
|
if(!errorSockets.empty()){
|
|
if(find(errorSockets.begin(), errorSockets.end(), realUdpSocket)!=errorSockets.end()){
|
|
LOGW("UDP socket failed");
|
|
SetState(STATE_FAILED);
|
|
return;
|
|
}
|
|
MutexGuard m(endpointsMutex);
|
|
for(NetworkSocket*& socket:errorSockets){
|
|
for(pair<const int64_t, Endpoint>& _e:endpoints){
|
|
Endpoint& e=_e.second;
|
|
if(e.socket && e.socket==socket){
|
|
e.socket->Close();
|
|
delete e.socket;
|
|
e.socket=NULL;
|
|
LOGI("Closing failed TCP socket for %s:%u", e.GetAddress().ToString().c_str(), e.port);
|
|
}
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
for(NetworkSocket*& socket:readSockets){
|
|
//while(packet.length){
|
|
packet.length=1500;
|
|
socket->Receive(&packet);
|
|
if(!packet.address){
|
|
LOGE("Packet has null address. This shouldn't happen.");
|
|
continue;
|
|
}
|
|
size_t len=packet.length;
|
|
if(!len){
|
|
LOGE("Packet has zero length.");
|
|
continue;
|
|
}
|
|
//LOGV("Received %d bytes from %s:%d at %.5lf", len, packet.address->ToString().c_str(), packet.port, GetCurrentTime());
|
|
int64_t srcEndpointID=0;
|
|
|
|
IPv4Address *src4=dynamic_cast<IPv4Address *>(packet.address);
|
|
if(src4){
|
|
MutexGuard m(endpointsMutex);
|
|
for(pair<const int64_t, Endpoint>& _e:endpoints){
|
|
const Endpoint& e=_e.second;
|
|
if(e.address==*src4 && e.port==packet.port){
|
|
if((e.type!=Endpoint::Type::TCP_RELAY && packet.protocol==PROTO_UDP) || (e.type==Endpoint::Type::TCP_RELAY && packet.protocol==PROTO_TCP)){
|
|
srcEndpointID=e.id;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if(!srcEndpointID && packet.protocol==PROTO_UDP){
|
|
try{
|
|
Endpoint &p2p=GetEndpointByType(Endpoint::Type::UDP_P2P_INET);
|
|
if(p2p.rtts[0]==0.0 && p2p.address.PrefixMatches(24, *packet.address)){
|
|
LOGD("Packet source matches p2p endpoint partially: %s:%u", packet.address->ToString().c_str(), packet.port);
|
|
srcEndpointID=p2p.id;
|
|
}
|
|
}catch(out_of_range& ex){}
|
|
}
|
|
}else{
|
|
IPv6Address *src6=dynamic_cast<IPv6Address *>(packet.address);
|
|
if(src6){
|
|
MutexGuard m(endpointsMutex);
|
|
for(pair<const int64_t, Endpoint> &_e:endpoints){
|
|
const Endpoint& e=_e.second;
|
|
if(e.v6address==*src6 && e.port==packet.port && e.IsIPv6Only()){
|
|
if((e.type!=Endpoint::Type::TCP_RELAY && packet.protocol==PROTO_UDP) || (e.type==Endpoint::Type::TCP_RELAY && packet.protocol==PROTO_TCP)){
|
|
srcEndpointID=e.id;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if(!srcEndpointID){
|
|
LOGW("Received a packet from unknown source %s:%u", packet.address->ToString().c_str(), packet.port);
|
|
continue;
|
|
}
|
|
if(len<=0){
|
|
//LOGW("error receiving: %d / %s", errno, strerror(errno));
|
|
continue;
|
|
}
|
|
if(IS_MOBILE_NETWORK(networkType))
|
|
stats.bytesRecvdMobile+=(uint64_t) len;
|
|
else
|
|
stats.bytesRecvdWifi+=(uint64_t) len;
|
|
try{
|
|
ProcessIncomingPacket(packet, endpoints.at(srcEndpointID));
|
|
}catch(out_of_range& x){
|
|
LOGW("Error parsing packet: %s", x.what());
|
|
}
|
|
//}
|
|
}
|
|
|
|
for(vector<PendingOutgoingPacket>::iterator opkt=sendQueue.begin();opkt!=sendQueue.end();){
|
|
Endpoint* endpoint=GetEndpointForPacket(*opkt);
|
|
if(!endpoint){
|
|
opkt=sendQueue.erase(opkt);
|
|
LOGE("SendQueue contained packet for nonexistent endpoint");
|
|
continue;
|
|
}
|
|
bool canSend;
|
|
if(endpoint->type!=Endpoint::Type::TCP_RELAY)
|
|
canSend=realUdpSocket->IsReadyToSend();
|
|
else
|
|
canSend=endpoint->socket && endpoint->socket->IsReadyToSend();
|
|
if(canSend){
|
|
LOGI("Sending queued packet");
|
|
SendOrEnqueuePacket(move(*opkt), false);
|
|
opkt=sendQueue.erase(opkt);
|
|
}else{
|
|
++opkt;
|
|
}
|
|
}
|
|
}
|
|
LOGI("=== recv thread exiting ===");
|
|
}
|
|
|
|
bool VoIPController::WasOutgoingPacketAcknowledged(uint32_t seq){
|
|
for(RecentOutgoingPacket& opkt:recentOutgoingPackets){
|
|
if(opkt.seq==seq && opkt.ackTime!=0.0){
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void VoIPController::ProcessIncomingPacket(NetworkPacket &packet, Endpoint& srcEndpoint){
|
|
unsigned char *buffer=packet.data;
|
|
size_t len=packet.length;
|
|
BufferInputStream in(buffer, (size_t) len);
|
|
bool hasPeerTag=false;
|
|
if(peerVersion<9 || srcEndpoint.type==Endpoint::Type::UDP_RELAY || srcEndpoint.type==Endpoint::Type::TCP_RELAY){
|
|
if(memcmp(buffer, srcEndpoint.type==Endpoint::Type::UDP_RELAY || srcEndpoint.type==Endpoint::Type::TCP_RELAY ? (void *) srcEndpoint.peerTag : (void *) callID, 16)!=0){
|
|
LOGW("Received packet has wrong peerTag");
|
|
return;
|
|
}
|
|
in.Seek(16);
|
|
hasPeerTag=true;
|
|
}
|
|
if(in.Remaining()>=16 && (srcEndpoint.type==Endpoint::Type::UDP_RELAY || srcEndpoint.type==Endpoint::Type::TCP_RELAY)
|
|
&& *reinterpret_cast<uint64_t *>(buffer+16)==0xFFFFFFFFFFFFFFFFLL && *reinterpret_cast<uint32_t *>(buffer+24)==0xFFFFFFFF){
|
|
// relay special request response
|
|
in.Seek(16+12);
|
|
uint32_t tlid=(uint32_t) in.ReadInt32();
|
|
|
|
if(tlid==TLID_UDP_REFLECTOR_SELF_INFO){
|
|
if(srcEndpoint.type==Endpoint::Type::UDP_RELAY /*&& udpConnectivityState==UDP_PING_SENT*/ && in.Remaining()>=32){
|
|
int32_t date=in.ReadInt32();
|
|
int64_t queryID=in.ReadInt64();
|
|
unsigned char myIP[16];
|
|
in.ReadBytes(myIP, 16);
|
|
int32_t myPort=in.ReadInt32();
|
|
//udpConnectivityState=UDP_AVAILABLE;
|
|
LOGV("Received UDP ping reply from %s:%d: date=%d, queryID=%ld, my IP=%s, my port=%d", srcEndpoint.address.ToString().c_str(), srcEndpoint.port, date, (long int) queryID, IPv4Address(*reinterpret_cast<uint32_t *>(myIP+12)).ToString().c_str(), myPort);
|
|
srcEndpoint.udpPongCount++;
|
|
if(srcEndpoint.IsIPv6Only() && !didSendIPv6Endpoint){
|
|
IPv6Address realAddr(myIP);
|
|
if(realAddr==myIPv6){
|
|
LOGI("Public IPv6 matches local address");
|
|
useIPv6=true;
|
|
if(allowP2p){
|
|
didSendIPv6Endpoint=true;
|
|
BufferOutputStream o(18);
|
|
o.WriteBytes(myIP, 16);
|
|
o.WriteInt16(udpSocket->GetLocalPort());
|
|
Buffer b(move(o));
|
|
SendExtra(b, EXTRA_TYPE_IPV6_ENDPOINT);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}else if(tlid==TLID_UDP_REFLECTOR_PEER_INFO){
|
|
if(in.Remaining()>=16){
|
|
MutexGuard _m(endpointsMutex);
|
|
uint32_t myAddr=(uint32_t) in.ReadInt32();
|
|
uint32_t myPort=(uint32_t) in.ReadInt32();
|
|
uint32_t peerAddr=(uint32_t) in.ReadInt32();
|
|
uint32_t peerPort=(uint32_t) in.ReadInt32();
|
|
|
|
constexpr int64_t p2pID=(int64_t) (FOURCC('P', '2', 'P', '4')) << 32;
|
|
constexpr int64_t lanID=(int64_t) (FOURCC('L', 'A', 'N', '4')) << 32;
|
|
|
|
if(currentEndpoint==p2pID || currentEndpoint==lanID)
|
|
currentEndpoint=preferredRelay;
|
|
|
|
endpoints.erase(lanID);
|
|
|
|
IPv4Address _peerAddr(peerAddr);
|
|
IPv6Address emptyV6(string("::0"));
|
|
unsigned char peerTag[16];
|
|
LOGW("Received reflector peer info, my=%s:%u, peer=%s:%u", IPv4Address(myAddr).ToString().c_str(), myPort, IPv4Address(peerAddr).ToString().c_str(), peerPort);
|
|
if(waitingForRelayPeerInfo){
|
|
Endpoint p2p(p2pID, (uint16_t) peerPort, _peerAddr, emptyV6, Endpoint::Type::UDP_P2P_INET, peerTag);
|
|
endpoints[p2pID]=p2p;
|
|
if(myAddr==peerAddr){
|
|
LOGW("Detected LAN");
|
|
IPv4Address lanAddr(0);
|
|
udpSocket->GetLocalInterfaceInfo(&lanAddr, NULL);
|
|
|
|
BufferOutputStream pkt(8);
|
|
pkt.WriteInt32(lanAddr.GetAddress());
|
|
pkt.WriteInt32(udpSocket->GetLocalPort());
|
|
if(peerVersion<6){
|
|
SendPacketReliably(PKT_LAN_ENDPOINT, pkt.GetBuffer(), pkt.GetLength(), 0.5, 10);
|
|
}else{
|
|
Buffer buf(move(pkt));
|
|
SendExtra(buf, EXTRA_TYPE_LAN_ENDPOINT);
|
|
}
|
|
}
|
|
waitingForRelayPeerInfo=false;
|
|
}
|
|
}
|
|
}else{
|
|
LOGV("Received relay response with unknown tl id: 0x%08X", tlid);
|
|
}
|
|
return;
|
|
}
|
|
if(in.Remaining()<40){
|
|
LOGV("Received packet is too small");
|
|
return;
|
|
}
|
|
|
|
bool retryWith2=false;
|
|
size_t innerLen=0;
|
|
bool shortFormat=peerVersion>=8 || (!peerVersion && connectionMaxLayer>=92);
|
|
|
|
if(!useMTProto2){
|
|
unsigned char fingerprint[8], msgHash[16];
|
|
in.ReadBytes(fingerprint, 8);
|
|
in.ReadBytes(msgHash, 16);
|
|
unsigned char key[32], iv[32];
|
|
KDF(msgHash, isOutgoing ? 8 : 0, key, iv);
|
|
unsigned char aesOut[MSC_STACK_FALLBACK(in.Remaining(), 1500)];
|
|
if(in.Remaining()>sizeof(aesOut))
|
|
return;
|
|
crypto.aes_ige_decrypt((unsigned char *) buffer+in.GetOffset(), aesOut, in.Remaining(), key, iv);
|
|
BufferInputStream _in(aesOut, in.Remaining());
|
|
unsigned char sha[SHA1_LENGTH];
|
|
uint32_t _len=(uint32_t) _in.ReadInt32();
|
|
if(_len>_in.Remaining())
|
|
_len=(uint32_t) _in.Remaining();
|
|
crypto.sha1((uint8_t *) (aesOut), (size_t) (_len+4), sha);
|
|
if(memcmp(msgHash, sha+(SHA1_LENGTH-16), 16)!=0){
|
|
LOGW("Received packet has wrong hash after decryption");
|
|
if(state==STATE_WAIT_INIT || state==STATE_WAIT_INIT_ACK)
|
|
retryWith2=true;
|
|
else
|
|
return;
|
|
}else{
|
|
memcpy(buffer+in.GetOffset(), aesOut, in.Remaining());
|
|
in.ReadInt32();
|
|
}
|
|
}
|
|
|
|
if(useMTProto2 || retryWith2){
|
|
if(hasPeerTag)
|
|
in.Seek(16); // peer tag
|
|
|
|
unsigned char fingerprint[8], msgKey[16];
|
|
if(!shortFormat){
|
|
in.ReadBytes(fingerprint, 8);
|
|
if(memcmp(fingerprint, keyFingerprint, 8)!=0){
|
|
LOGW("Received packet has wrong key fingerprint");
|
|
return;
|
|
}
|
|
}
|
|
in.ReadBytes(msgKey, 16);
|
|
|
|
unsigned char decrypted[1500];
|
|
unsigned char aesKey[32], aesIv[32];
|
|
KDF2(msgKey, isOutgoing ? 8 : 0, aesKey, aesIv);
|
|
size_t decryptedLen=in.Remaining();
|
|
if(decryptedLen>sizeof(decrypted))
|
|
return;
|
|
if(decryptedLen%16!=0){
|
|
LOGW("wrong decrypted length");
|
|
return;
|
|
}
|
|
|
|
crypto.aes_ige_decrypt(packet.data+in.GetOffset(), decrypted, decryptedLen, aesKey, aesIv);
|
|
|
|
in=BufferInputStream(decrypted, decryptedLen);
|
|
//LOGD("received packet length: %d", in.ReadInt32());
|
|
size_t sizeSize=shortFormat ? 0 : 4;
|
|
|
|
BufferOutputStream buf(decryptedLen+32);
|
|
size_t x=isOutgoing ? 8 : 0;
|
|
buf.WriteBytes(encryptionKey+88+x, 32);
|
|
buf.WriteBytes(decrypted+sizeSize, decryptedLen-sizeSize);
|
|
unsigned char msgKeyLarge[32];
|
|
crypto.sha256(buf.GetBuffer(), buf.GetLength(), msgKeyLarge);
|
|
|
|
if(memcmp(msgKey, msgKeyLarge+8, 16)!=0){
|
|
LOGW("Received packet has wrong hash");
|
|
return;
|
|
}
|
|
|
|
innerLen=(uint32_t) (shortFormat ? in.ReadInt16() : in.ReadInt32());
|
|
if(innerLen>decryptedLen-sizeSize){
|
|
LOGW("Received packet has wrong inner length (%d with total of %u)", (int) innerLen, (unsigned int) decryptedLen);
|
|
return;
|
|
}
|
|
if(decryptedLen-innerLen<(shortFormat ? 16 : 12)){
|
|
LOGW("Received packet has too little padding (%u)", (unsigned int) (decryptedLen-innerLen));
|
|
return;
|
|
}
|
|
memcpy(buffer, decrypted+(shortFormat ? 2 : 4), innerLen);
|
|
in=BufferInputStream(buffer, (size_t) innerLen);
|
|
if(retryWith2){
|
|
LOGD("Successfully decrypted packet in MTProto2.0 fallback, upgrading");
|
|
useMTProto2=true;
|
|
}
|
|
}
|
|
|
|
lastRecvPacketTime=GetCurrentTime();
|
|
|
|
if(state==STATE_RECONNECTING){
|
|
LOGI("Received a valid packet while reconnecting - setting state to established");
|
|
SetState(STATE_ESTABLISHED);
|
|
}
|
|
|
|
if(srcEndpoint.type==Endpoint::Type::UDP_P2P_INET && !srcEndpoint.IsIPv6Only()){
|
|
if(srcEndpoint.port!=packet.port || srcEndpoint.address!=*packet.address){
|
|
IPv4Address *v4=dynamic_cast<IPv4Address *>(packet.address);
|
|
if(v4){
|
|
LOGI("Incoming packet was decrypted successfully, changing P2P endpoint to %s:%u", packet.address->ToString().c_str(), packet.port);
|
|
srcEndpoint.address=*v4;
|
|
srcEndpoint.port=packet.port;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*decryptedAudioBlock random_id:long random_bytes:string flags:# voice_call_id:flags.2?int128 in_seq_no:flags.4?int out_seq_no:flags.4?int
|
|
* recent_received_mask:flags.5?int proto:flags.3?int extra:flags.1?string raw_data:flags.0?string = DecryptedAudioBlock
|
|
simpleAudioBlock random_id:long random_bytes:string raw_data:string = DecryptedAudioBlock;
|
|
*/
|
|
uint32_t ackId, pseq, acks;
|
|
unsigned char type, pflags;
|
|
size_t packetInnerLen=0;
|
|
if(shortFormat){
|
|
type=in.ReadByte();
|
|
ackId=(uint32_t) in.ReadInt32();
|
|
pseq=(uint32_t) in.ReadInt32();
|
|
acks=(uint32_t) in.ReadInt32();
|
|
pflags=in.ReadByte();
|
|
packetInnerLen=innerLen-14;
|
|
}else{
|
|
uint32_t tlid=(uint32_t) in.ReadInt32();
|
|
if(tlid==TLID_DECRYPTED_AUDIO_BLOCK){
|
|
in.ReadInt64(); // random id
|
|
uint32_t randLen=(uint32_t) in.ReadTlLength();
|
|
in.Seek(in.GetOffset()+randLen+pad4(randLen));
|
|
uint32_t flags=(uint32_t) in.ReadInt32();
|
|
type=(unsigned char) ((flags >> 24) & 0xFF);
|
|
if(!(flags & PFLAG_HAS_SEQ && flags & PFLAG_HAS_RECENT_RECV)){
|
|
LOGW("Received packet doesn't have PFLAG_HAS_SEQ, PFLAG_HAS_RECENT_RECV, or both");
|
|
|
|
return;
|
|
}
|
|
if(flags & PFLAG_HAS_CALL_ID){
|
|
unsigned char pktCallID[16];
|
|
in.ReadBytes(pktCallID, 16);
|
|
if(memcmp(pktCallID, callID, 16)!=0){
|
|
LOGW("Received packet has wrong call id");
|
|
|
|
lastError=ERROR_UNKNOWN;
|
|
SetState(STATE_FAILED);
|
|
return;
|
|
}
|
|
}
|
|
ackId=(uint32_t) in.ReadInt32();
|
|
pseq=(uint32_t) in.ReadInt32();
|
|
acks=(uint32_t) in.ReadInt32();
|
|
if(flags & PFLAG_HAS_PROTO){
|
|
uint32_t proto=(uint32_t) in.ReadInt32();
|
|
if(proto!=PROTOCOL_NAME){
|
|
LOGW("Received packet uses wrong protocol");
|
|
|
|
lastError=ERROR_INCOMPATIBLE;
|
|
SetState(STATE_FAILED);
|
|
return;
|
|
}
|
|
}
|
|
if(flags & PFLAG_HAS_EXTRA){
|
|
uint32_t extraLen=(uint32_t) in.ReadTlLength();
|
|
in.Seek(in.GetOffset()+extraLen+pad4(extraLen));
|
|
}
|
|
if(flags & PFLAG_HAS_DATA){
|
|
packetInnerLen=in.ReadTlLength();
|
|
}
|
|
pflags=0;
|
|
}else if(tlid==TLID_SIMPLE_AUDIO_BLOCK){
|
|
in.ReadInt64(); // random id
|
|
uint32_t randLen=(uint32_t) in.ReadTlLength();
|
|
in.Seek(in.GetOffset()+randLen+pad4(randLen));
|
|
packetInnerLen=in.ReadTlLength();
|
|
type=in.ReadByte();
|
|
ackId=(uint32_t) in.ReadInt32();
|
|
pseq=(uint32_t) in.ReadInt32();
|
|
acks=(uint32_t) in.ReadInt32();
|
|
if(peerVersion>=6)
|
|
pflags=in.ReadByte();
|
|
else
|
|
pflags=0;
|
|
}else{
|
|
LOGW("Received a packet of unknown type %08X", tlid);
|
|
|
|
return;
|
|
}
|
|
}
|
|
packetsReceived++;
|
|
if(seqgt(pseq, lastRemoteSeq)){
|
|
uint32_t diff=pseq-lastRemoteSeq;
|
|
if(diff>31){
|
|
memset(recvPacketTimes, 0, 32*sizeof(double));
|
|
}else{
|
|
memmove(&recvPacketTimes[diff], recvPacketTimes, (32-diff)*sizeof(double));
|
|
if(diff>1){
|
|
memset(recvPacketTimes, 0, diff*sizeof(double));
|
|
}
|
|
recvPacketTimes[0]=GetCurrentTime();
|
|
}
|
|
lastRemoteSeq=pseq;
|
|
}else if(!seqgt(pseq, lastRemoteSeq) && lastRemoteSeq-pseq<32){
|
|
if(recvPacketTimes[lastRemoteSeq-pseq]!=0){
|
|
LOGW("Received duplicated packet for seq %u", pseq);
|
|
|
|
return;
|
|
}
|
|
recvPacketTimes[lastRemoteSeq-pseq]=GetCurrentTime();
|
|
}else if(lastRemoteSeq-pseq>=32){
|
|
LOGW("Packet %u is out of order and too late", pseq);
|
|
|
|
return;
|
|
}
|
|
if(seqgt(ackId, lastRemoteAckSeq)){
|
|
//uint32_t diff=ackId-lastRemoteAckSeq;
|
|
/*if(diff>31){
|
|
memset(remoteAcks, 0, 32*sizeof(double));
|
|
}else{
|
|
memmove(&remoteAcks[diff], remoteAcks, (32-diff)*sizeof(double));
|
|
if(diff>1){
|
|
memset(remoteAcks, 0, diff*sizeof(double));
|
|
}
|
|
remoteAcks[0]=GetCurrentTime();
|
|
}*/
|
|
MutexGuard _m(queuedPacketsMutex);
|
|
if(waitingForAcks && lastRemoteAckSeq>=firstSentPing){
|
|
rttHistory.Reset();
|
|
waitingForAcks=false;
|
|
dontSendPackets=10;
|
|
messageThread.Post([this]{
|
|
dontSendPackets=0;
|
|
}, 1.0);
|
|
LOGI("resuming sending");
|
|
}
|
|
lastRemoteAckSeq=ackId;
|
|
conctl->PacketAcknowledged(ackId);
|
|
unsigned int i;
|
|
for(i=0;i<31;i++){
|
|
for(vector<RecentOutgoingPacket>::iterator itr=recentOutgoingPackets.begin();itr!=recentOutgoingPackets.end();++itr){
|
|
if(itr->ackTime!=0)
|
|
continue;
|
|
if(((acks >> (31-i)) & 1) && itr->seq==ackId-(i+1)){
|
|
itr->ackTime=GetCurrentTime();
|
|
conctl->PacketAcknowledged(itr->seq);
|
|
}
|
|
}
|
|
/*if(remoteAcks[i+1]==0){
|
|
if((acks >> (31-i)) & 1){
|
|
remoteAcks[i+1]=GetCurrentTime();
|
|
conctl->PacketAcknowledged(ackId-(i+1));
|
|
}
|
|
}*/
|
|
}
|
|
for(i=0;i<queuedPackets.size();i++){
|
|
QueuedPacket& qp=queuedPackets[i];
|
|
int j;
|
|
bool didAck=false;
|
|
for(j=0;j<16;j++){
|
|
LOGD("queued packet %u, seq %u=%u", i, j, qp.seqs[j]);
|
|
if(qp.seqs[j]==0)
|
|
break;
|
|
int remoteAcksIndex=lastRemoteAckSeq-qp.seqs[j];
|
|
//LOGV("remote acks index %u, value %f", remoteAcksIndex, remoteAcksIndex>=0 && remoteAcksIndex<32 ? remoteAcks[remoteAcksIndex] : -1);
|
|
if(seqgt(lastRemoteAckSeq, qp.seqs[j]) && remoteAcksIndex>=0 && remoteAcksIndex<32){
|
|
for(RecentOutgoingPacket& opkt:recentOutgoingPackets){
|
|
if(opkt.seq==qp.seqs[j] && opkt.ackTime>0){
|
|
LOGD("did ack seq %u, removing", qp.seqs[j]);
|
|
didAck=true;
|
|
break;
|
|
}
|
|
}
|
|
if(didAck)
|
|
break;
|
|
}
|
|
}
|
|
if(didAck){
|
|
queuedPackets.erase(queuedPackets.begin()+i);
|
|
i--;
|
|
continue;
|
|
}
|
|
}
|
|
for(vector<UnacknowledgedExtraData>::iterator x=currentExtras.begin();x!=currentExtras.end();){
|
|
if(x->firstContainingSeq!=0 && (lastRemoteAckSeq==x->firstContainingSeq || seqgt(lastRemoteAckSeq, x->firstContainingSeq))){
|
|
LOGV("Peer acknowledged extra type %u length %lu", x->type, x->data.Length());
|
|
ProcessAcknowledgedOutgoingExtra(*x);
|
|
x=currentExtras.erase(x);
|
|
continue;
|
|
}
|
|
++x;
|
|
}
|
|
if(videoSource && !videoKeyframeRequested){
|
|
// video frames are stored in sentVideoFrames in order of increasing numbers
|
|
// so if a frame (or part of it) is acknowledged but isn't sentVideoFrames[0], we know there was a packet loss
|
|
MutexGuard m(sentVideoFramesMutex);
|
|
for(SentVideoFrame& f:sentVideoFrames){
|
|
for(vector<uint32_t>::iterator s=f.unacknowledgedPackets.begin(); s!=f.unacknowledgedPackets.end();){
|
|
if(WasOutgoingPacketAcknowledged(*s)){
|
|
s=f.unacknowledgedPackets.erase(s);
|
|
}else{
|
|
++s;
|
|
}
|
|
}
|
|
}
|
|
bool first=true;
|
|
for(vector<SentVideoFrame>::iterator f=sentVideoFrames.begin();f!=sentVideoFrames.end();){
|
|
if(f->unacknowledgedPackets.empty()){
|
|
LOGV("Video frame %u was acknowledged", f->num);
|
|
if(first){
|
|
f=sentVideoFrames.erase(f);
|
|
continue;
|
|
}else{
|
|
LOGE("!!!!!!!!!!!!!!11 VIDEO FRAME LOSS DETECTED [1]");
|
|
videoKeyframeRequested=true;
|
|
videoSource->RequestKeyFrame();
|
|
break;
|
|
}
|
|
}else if(first){
|
|
first=false;
|
|
}else if(!first && f->unacknowledgedPackets.size()<f->fragmentCount){
|
|
LOGE("!!!!!!!!!!!!!!11 VIDEO FRAME LOSS DETECTED [2]");
|
|
videoKeyframeRequested=true;
|
|
videoSource->RequestKeyFrame();
|
|
break;
|
|
}
|
|
++f;
|
|
}
|
|
}
|
|
}
|
|
|
|
Endpoint* _currentEndpoint=&endpoints.at(currentEndpoint);
|
|
if(srcEndpoint.id!=currentEndpoint && (srcEndpoint.type==Endpoint::Type::UDP_RELAY || srcEndpoint.type==Endpoint::Type::TCP_RELAY) && ((_currentEndpoint->type!=Endpoint::Type::UDP_RELAY && _currentEndpoint->type!=Endpoint::Type::TCP_RELAY) || _currentEndpoint->averageRTT==0)){
|
|
if(seqgt(lastSentSeq-32, lastRemoteAckSeq)){
|
|
currentEndpoint=srcEndpoint.id;
|
|
_currentEndpoint=&srcEndpoint;
|
|
LOGI("Peer network address probably changed, switching to relay");
|
|
if(allowP2p)
|
|
SendPublicEndpointsRequest();
|
|
}
|
|
}
|
|
|
|
if(pflags & XPFLAG_HAS_EXTRA){
|
|
unsigned char extraCount=in.ReadByte();
|
|
for(int i=0;i<extraCount;i++){
|
|
size_t extraLen=in.ReadByte();
|
|
Buffer xbuffer(extraLen);
|
|
in.ReadBytes(*xbuffer, extraLen);
|
|
ProcessExtraData(xbuffer);
|
|
}
|
|
}
|
|
|
|
if(config.logPacketStats){
|
|
DebugLoggedPacket dpkt={
|
|
static_cast<int32_t>(pseq),
|
|
GetCurrentTime()-connectionInitTime,
|
|
static_cast<int32_t>(packet.length)
|
|
};
|
|
debugLoggedPackets.push_back(dpkt);
|
|
if(debugLoggedPackets.size()>=2500){
|
|
debugLoggedPackets.erase(debugLoggedPackets.begin(), debugLoggedPackets.begin()+500);
|
|
}
|
|
}
|
|
|
|
#ifdef LOG_PACKETS
|
|
LOGV("Received: from=%s:%u, seq=%u, length=%u, type=%s", srcEndpoint.GetAddress().ToString().c_str(), srcEndpoint.port, pseq, packet.length, GetPacketTypeString(type).c_str());
|
|
#endif
|
|
|
|
//LOGV("acks: %u -> %.2lf, %.2lf, %.2lf, %.2lf, %.2lf, %.2lf, %.2lf, %.2lf", lastRemoteAckSeq, remoteAcks[0], remoteAcks[1], remoteAcks[2], remoteAcks[3], remoteAcks[4], remoteAcks[5], remoteAcks[6], remoteAcks[7]);
|
|
//LOGD("recv: %u -> %.2lf, %.2lf, %.2lf, %.2lf, %.2lf, %.2lf, %.2lf, %.2lf", lastRemoteSeq, recvPacketTimes[0], recvPacketTimes[1], recvPacketTimes[2], recvPacketTimes[3], recvPacketTimes[4], recvPacketTimes[5], recvPacketTimes[6], recvPacketTimes[7]);
|
|
//LOGI("RTT = %.3lf", GetAverageRTT());
|
|
//LOGV("Packet %u type is %d", pseq, type);
|
|
if(type==PKT_INIT){
|
|
LOGD("Received init");
|
|
uint32_t ver=(uint32_t)in.ReadInt32();
|
|
if(!receivedInit)
|
|
peerVersion=ver;
|
|
LOGI("Peer version is %d", peerVersion);
|
|
uint32_t minVer=(uint32_t) in.ReadInt32();
|
|
if(minVer>PROTOCOL_VERSION || peerVersion<MIN_PROTOCOL_VERSION){
|
|
lastError=ERROR_INCOMPATIBLE;
|
|
|
|
SetState(STATE_FAILED);
|
|
return;
|
|
}
|
|
uint32_t flags=(uint32_t) in.ReadInt32();
|
|
if(!receivedInit){
|
|
if(flags & INIT_FLAG_DATA_SAVING_ENABLED){
|
|
dataSavingRequestedByPeer=true;
|
|
UpdateDataSavingState();
|
|
UpdateAudioBitrateLimit();
|
|
}
|
|
if(flags & INIT_FLAG_GROUP_CALLS_SUPPORTED){
|
|
peerCapabilities|=TGVOIP_PEER_CAP_GROUP_CALLS;
|
|
}
|
|
if(flags & INIT_FLAG_VIDEO_RECV_SUPPORTED){
|
|
peerCapabilities|=TGVOIP_PEER_CAP_VIDEO_DISPLAY;
|
|
}
|
|
if(flags & INIT_FLAG_VIDEO_SEND_SUPPORTED){
|
|
peerCapabilities|=TGVOIP_PEER_CAP_VIDEO_CAPTURE;
|
|
}
|
|
}
|
|
|
|
unsigned int i;
|
|
unsigned int numSupportedAudioCodecs=in.ReadByte();
|
|
for(i=0; i<numSupportedAudioCodecs; i++){
|
|
if(peerVersion<5)
|
|
in.ReadByte(); // ignore for now
|
|
else
|
|
in.ReadInt32();
|
|
}
|
|
if(!receivedInit && ((flags & INIT_FLAG_VIDEO_SEND_SUPPORTED && config.enableVideoReceive) || (flags & INIT_FLAG_VIDEO_RECV_SUPPORTED && config.enableVideoSend))){
|
|
LOGD("Peer video decoders:");
|
|
unsigned int numSupportedVideoDecoders=in.ReadByte();
|
|
for(i=0; i<numSupportedVideoDecoders; i++){
|
|
uint32_t id=static_cast<uint32_t>(in.ReadInt32());
|
|
peerVideoDecoders.push_back(id);
|
|
char* _id=reinterpret_cast<char*>(&id);
|
|
LOGD("%c%c%c%c", _id[3], _id[2], _id[1], _id[0]);
|
|
}
|
|
peerMaxVideoResolution=in.ReadByte();
|
|
|
|
SetupOutgoingVideoStream();
|
|
}
|
|
|
|
BufferOutputStream out(1024);
|
|
|
|
out.WriteInt32(PROTOCOL_VERSION);
|
|
out.WriteInt32(MIN_PROTOCOL_VERSION);
|
|
|
|
out.WriteByte((unsigned char) outgoingStreams.size());
|
|
for(vector<shared_ptr<Stream>>::iterator s=outgoingStreams.begin(); s!=outgoingStreams.end(); ++s){
|
|
out.WriteByte((*s)->id);
|
|
out.WriteByte((*s)->type);
|
|
if(peerVersion<5)
|
|
out.WriteByte((unsigned char) ((*s)->codec==CODEC_OPUS ? CODEC_OPUS_OLD : 0));
|
|
else
|
|
out.WriteInt32((*s)->codec);
|
|
out.WriteInt16((*s)->frameDuration);
|
|
out.WriteByte((unsigned char) ((*s)->enabled ? 1 : 0));
|
|
}
|
|
LOGI("Sending init ack");
|
|
SendOrEnqueuePacket(PendingOutgoingPacket{
|
|
/*.seq=*/GenerateOutSeq(),
|
|
/*.type=*/PKT_INIT_ACK,
|
|
/*.len=*/out.GetLength(),
|
|
/*.data=*/Buffer(move(out)),
|
|
/*.endpoint=*/0
|
|
});
|
|
if(!receivedInit){
|
|
receivedInit=true;
|
|
if((srcEndpoint.type==Endpoint::Type::UDP_RELAY && udpConnectivityState!=UDP_BAD && udpConnectivityState!=UDP_NOT_AVAILABLE) || srcEndpoint.type==Endpoint::Type::TCP_RELAY){
|
|
currentEndpoint=srcEndpoint.id;
|
|
if(srcEndpoint.type==Endpoint::Type::UDP_RELAY || (useTCP && srcEndpoint.type==Endpoint::Type::TCP_RELAY))
|
|
preferredRelay=srcEndpoint.id;
|
|
}
|
|
}
|
|
if(!audioStarted && receivedInitAck){
|
|
StartAudio();
|
|
audioStarted=true;
|
|
}
|
|
}
|
|
if(type==PKT_INIT_ACK){
|
|
LOGD("Received init ack");
|
|
|
|
if(!receivedInitAck){
|
|
receivedInitAck=true;
|
|
|
|
messageThread.Cancel(initTimeoutID);
|
|
initTimeoutID=MessageThread::INVALID_ID;
|
|
|
|
if(packetInnerLen>10){
|
|
peerVersion=in.ReadInt32();
|
|
uint32_t minVer=(uint32_t) in.ReadInt32();
|
|
if(minVer>PROTOCOL_VERSION || peerVersion<MIN_PROTOCOL_VERSION){
|
|
lastError=ERROR_INCOMPATIBLE;
|
|
|
|
SetState(STATE_FAILED);
|
|
return;
|
|
}
|
|
}else{
|
|
peerVersion=1;
|
|
}
|
|
|
|
LOGI("peer version from init ack %d", peerVersion);
|
|
|
|
unsigned char streamCount=in.ReadByte();
|
|
if(streamCount==0)
|
|
return;
|
|
|
|
int i;
|
|
shared_ptr<Stream> incomingAudioStream=NULL;
|
|
for(i=0; i<streamCount; i++){
|
|
shared_ptr<Stream> stm=make_shared<Stream>();
|
|
stm->id=in.ReadByte();
|
|
stm->type=in.ReadByte();
|
|
if(peerVersion<5){
|
|
unsigned char codec=in.ReadByte();
|
|
if(codec==CODEC_OPUS_OLD)
|
|
stm->codec=CODEC_OPUS;
|
|
}else{
|
|
stm->codec=(uint32_t) in.ReadInt32();
|
|
}
|
|
in.ReadInt16();
|
|
stm->frameDuration=60;
|
|
stm->enabled=in.ReadByte()==1;
|
|
if(stm->type==STREAM_TYPE_AUDIO){
|
|
stm->jitterBuffer=make_shared<JitterBuffer>(nullptr, stm->frameDuration);
|
|
if(stm->frameDuration>50)
|
|
stm->jitterBuffer->SetMinPacketCount((uint32_t) ServerConfig::GetSharedInstance()->GetInt("jitter_initial_delay_60", 2));
|
|
else if(stm->frameDuration>30)
|
|
stm->jitterBuffer->SetMinPacketCount((uint32_t) ServerConfig::GetSharedInstance()->GetInt("jitter_initial_delay_40", 4));
|
|
else
|
|
stm->jitterBuffer->SetMinPacketCount((uint32_t) ServerConfig::GetSharedInstance()->GetInt("jitter_initial_delay_20", 6));
|
|
stm->decoder=NULL;
|
|
}else if(stm->type==STREAM_TYPE_VIDEO){
|
|
if(!stm->packetReassembler){
|
|
stm->packetReassembler=make_shared<PacketReassembler>();
|
|
stm->packetReassembler->SetCallback(bind(&VoIPController::ProcessIncomingVideoFrame, this, placeholders::_1, placeholders::_2, placeholders::_3));
|
|
}
|
|
}else{
|
|
LOGW("Unknown incoming stream type: %d", stm->type);
|
|
continue;
|
|
}
|
|
incomingStreams.push_back(stm);
|
|
if(stm->type==STREAM_TYPE_AUDIO && !incomingAudioStream)
|
|
incomingAudioStream=stm;
|
|
}
|
|
if(!incomingAudioStream)
|
|
return;
|
|
|
|
if(peerVersion>=5 && !useMTProto2){
|
|
useMTProto2=true;
|
|
LOGD("MTProto2 wasn't initially enabled for whatever reason but peer supports it; upgrading");
|
|
}
|
|
|
|
if(!audioStarted && receivedInit){
|
|
StartAudio();
|
|
audioStarted=true;
|
|
}
|
|
messageThread.Post([this]{
|
|
if(state==STATE_WAIT_INIT_ACK){
|
|
SetState(STATE_ESTABLISHED);
|
|
}
|
|
}, ServerConfig::GetSharedInstance()->GetDouble("established_delay_if_no_stream_data", 1.5));
|
|
if(allowP2p)
|
|
SendPublicEndpointsRequest();
|
|
}
|
|
}
|
|
if(type==PKT_STREAM_DATA || type==PKT_STREAM_DATA_X2 || type==PKT_STREAM_DATA_X3){
|
|
if(!receivedFirstStreamPacket){
|
|
receivedFirstStreamPacket=true;
|
|
if(state!=STATE_ESTABLISHED && receivedInitAck){
|
|
messageThread.Post([this](){
|
|
SetState(STATE_ESTABLISHED);
|
|
}, .5);
|
|
LOGW("First audio packet - setting state to ESTABLISHED");
|
|
}
|
|
}
|
|
int count;
|
|
switch(type){
|
|
case PKT_STREAM_DATA_X2:
|
|
count=2;
|
|
break;
|
|
case PKT_STREAM_DATA_X3:
|
|
count=3;
|
|
break;
|
|
case PKT_STREAM_DATA:
|
|
default:
|
|
count=1;
|
|
break;
|
|
}
|
|
int i;
|
|
if(srcEndpoint.type==Endpoint::Type::UDP_RELAY && srcEndpoint.id!=peerPreferredRelay){
|
|
peerPreferredRelay=srcEndpoint.id;
|
|
}
|
|
for(i=0;i<count;i++){
|
|
unsigned char streamID=in.ReadByte();
|
|
unsigned char flags=(unsigned char) (streamID & 0xC0);
|
|
streamID&=0x3F;
|
|
uint16_t sdlen=(uint16_t) (flags & STREAM_DATA_FLAG_LEN16 ? in.ReadInt16() : in.ReadByte());
|
|
uint32_t pts=(uint32_t) in.ReadInt32();
|
|
unsigned char fragmentCount=0;
|
|
unsigned char fragmentIndex=0;
|
|
//LOGD("stream data, pts=%d, len=%d, rem=%d", pts, sdlen, in.Remaining());
|
|
audioTimestampIn=pts;
|
|
if(!audioOutStarted && audioOutput){
|
|
MutexGuard m(audioIOMutex);
|
|
audioOutput->Start();
|
|
audioOutStarted=true;
|
|
}
|
|
bool fragmented=static_cast<bool>(sdlen & STREAM_DATA_XFLAG_FRAGMENTED);
|
|
bool extraFEC=static_cast<bool>(sdlen & STREAM_DATA_XFLAG_EXTRA_FEC);
|
|
bool keyframe=static_cast<bool>(sdlen & STREAM_DATA_XFLAG_KEYFRAME);
|
|
if(fragmented){
|
|
fragmentIndex=in.ReadByte();
|
|
fragmentCount=in.ReadByte();
|
|
}
|
|
sdlen&=0x7FF;
|
|
if(in.GetOffset()+sdlen>len){
|
|
return;
|
|
}
|
|
shared_ptr<Stream> stm;
|
|
for(shared_ptr<Stream>& ss:incomingStreams){
|
|
if(ss->id==streamID){
|
|
stm=ss;
|
|
break;
|
|
}
|
|
}
|
|
if(stm && stm->type==STREAM_TYPE_AUDIO){
|
|
if(stm->jitterBuffer){
|
|
stm->jitterBuffer->HandleInput((unsigned char *) (buffer+in.GetOffset()), sdlen, pts, false);
|
|
if(extraFEC){
|
|
in.Seek(in.GetOffset()+sdlen);
|
|
unsigned int fecCount=in.ReadByte();
|
|
for(unsigned int j=0;j<fecCount;j++){
|
|
unsigned char dlen=in.ReadByte();
|
|
unsigned char data[256];
|
|
in.ReadBytes(data, dlen);
|
|
stm->jitterBuffer->HandleInput(data, dlen, pts-(fecCount-j-1)*stm->frameDuration, true);
|
|
}
|
|
}
|
|
}
|
|
}else if(stm && stm->type==STREAM_TYPE_VIDEO){
|
|
if(stm->packetReassembler){
|
|
Buffer pdata(sdlen);
|
|
pdata.CopyFrom(buffer+in.GetOffset(), 0, sdlen);
|
|
stm->packetReassembler->AddFragment(std::move(pdata), fragmentIndex, fragmentCount, pts, keyframe);
|
|
}
|
|
//LOGV("Received video fragment %u of %u", fragmentIndex, fragmentCount);
|
|
}else{
|
|
LOGW("received packet for unknown stream %u", (unsigned int)streamID);
|
|
}
|
|
if(i<count-1)
|
|
in.Seek(in.GetOffset()+sdlen);
|
|
}
|
|
}
|
|
if(type==PKT_PING){
|
|
//LOGD("Received ping from %s:%d", srcEndpoint.address.ToString().c_str(), srcEndpoint.port);
|
|
if(srcEndpoint.type!=Endpoint::Type::UDP_RELAY && srcEndpoint.type!=Endpoint::Type::TCP_RELAY && !allowP2p){
|
|
LOGW("Received p2p ping but p2p is disabled by manual override");
|
|
return;
|
|
}
|
|
BufferOutputStream pkt(128);
|
|
pkt.WriteInt32(pseq);
|
|
SendOrEnqueuePacket(PendingOutgoingPacket{
|
|
/*.seq=*/GenerateOutSeq(),
|
|
/*.type=*/PKT_PONG,
|
|
/*.len=*/pkt.GetLength(),
|
|
/*.data=*/Buffer(move(pkt)),
|
|
/*.endpoint=*/srcEndpoint.id,
|
|
});
|
|
}
|
|
if(type==PKT_PONG){
|
|
if(packetInnerLen>=4){
|
|
uint32_t pingSeq=(uint32_t) in.ReadInt32();
|
|
#ifdef LOG_PACKETS
|
|
LOGD("Received pong for ping in seq %u", pingSeq);
|
|
#endif
|
|
if(pingSeq==srcEndpoint.lastPingSeq){
|
|
srcEndpoint.rtts.Add(GetCurrentTime()-srcEndpoint.lastPingTime);
|
|
srcEndpoint.averageRTT=srcEndpoint.rtts.NonZeroAverage();
|
|
LOGD("Current RTT via %s: %.3f, average: %.3f", packet.address->ToString().c_str(), srcEndpoint.rtts[0], srcEndpoint.averageRTT);
|
|
if(srcEndpoint.averageRTT>rateMaxAcceptableRTT)
|
|
needRate=true;
|
|
}
|
|
}
|
|
}
|
|
if(type==PKT_STREAM_STATE){
|
|
unsigned char id=in.ReadByte();
|
|
unsigned char enabled=in.ReadByte();
|
|
LOGV("Peer stream state: id %u flags %u", (int)id, (int)enabled);
|
|
for(vector<shared_ptr<Stream>>::iterator s=incomingStreams.begin();s!=incomingStreams.end();++s){
|
|
if((*s)->id==id){
|
|
(*s)->enabled=enabled==1;
|
|
UpdateAudioOutputState();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if(type==PKT_LAN_ENDPOINT){
|
|
LOGV("received lan endpoint");
|
|
uint32_t peerAddr=(uint32_t) in.ReadInt32();
|
|
uint16_t peerPort=(uint16_t) in.ReadInt32();
|
|
MutexGuard m(endpointsMutex);
|
|
constexpr int64_t lanID=(int64_t)(FOURCC('L','A','N','4')) << 32;
|
|
IPv4Address v4addr(peerAddr);
|
|
IPv6Address v6addr(string("::0"));
|
|
unsigned char peerTag[16];
|
|
Endpoint lan(lanID, peerPort, v4addr, v6addr, Endpoint::Type::UDP_P2P_LAN, peerTag);
|
|
|
|
if(currentEndpoint==lanID)
|
|
currentEndpoint=preferredRelay;
|
|
endpoints[lanID]=lan;
|
|
}
|
|
if(type==PKT_NETWORK_CHANGED && _currentEndpoint->type!=Endpoint::Type::UDP_RELAY && _currentEndpoint->type!=Endpoint::Type::TCP_RELAY){
|
|
currentEndpoint=preferredRelay;
|
|
if(allowP2p)
|
|
SendPublicEndpointsRequest();
|
|
if(peerVersion>=2){
|
|
uint32_t flags=(uint32_t) in.ReadInt32();
|
|
dataSavingRequestedByPeer=(flags & INIT_FLAG_DATA_SAVING_ENABLED)==INIT_FLAG_DATA_SAVING_ENABLED;
|
|
UpdateDataSavingState();
|
|
UpdateAudioBitrateLimit();
|
|
ResetEndpointPingStats();
|
|
}
|
|
}
|
|
if(type==PKT_STREAM_EC){
|
|
unsigned char streamID=in.ReadByte();
|
|
uint32_t lastTimestamp=(uint32_t)in.ReadInt32();
|
|
unsigned char count=in.ReadByte();
|
|
for(shared_ptr<Stream>& stm:incomingStreams){
|
|
if(stm->id==streamID){
|
|
for(unsigned int i=0;i<count;i++){
|
|
unsigned char dlen=in.ReadByte();
|
|
unsigned char data[256];
|
|
in.ReadBytes(data, dlen);
|
|
if(stm->jitterBuffer){
|
|
stm->jitterBuffer->HandleInput(data, dlen, lastTimestamp-(count-i-1)*stm->frameDuration, true);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void VoIPController::ProcessExtraData(Buffer &data){
|
|
BufferInputStream in(*data, data.Length());
|
|
unsigned char type=in.ReadByte();
|
|
unsigned char fullHash[SHA1_LENGTH];
|
|
crypto.sha1(*data, data.Length(), fullHash);
|
|
uint64_t hash=*reinterpret_cast<uint64_t*>(fullHash);
|
|
if(lastReceivedExtrasByType[type]==hash){
|
|
return;
|
|
}
|
|
LOGE("ProcessExtraData");
|
|
lastReceivedExtrasByType[type]=hash;
|
|
if(type==EXTRA_TYPE_STREAM_FLAGS){
|
|
unsigned char id=in.ReadByte();
|
|
uint32_t flags=static_cast<uint32_t>(in.ReadInt32());
|
|
LOGV("Peer stream state: id %u flags %u", (unsigned int)id, (unsigned int)flags);
|
|
for(shared_ptr<Stream>& s:incomingStreams){
|
|
if(s->id==id){
|
|
bool prevEnabled=s->enabled;
|
|
s->enabled=(flags & STREAM_FLAG_ENABLED)==STREAM_FLAG_ENABLED;
|
|
if(flags & STREAM_FLAG_EXTRA_EC){
|
|
if(!s->extraECEnabled){
|
|
s->extraECEnabled=true;
|
|
if(s->jitterBuffer)
|
|
s->jitterBuffer->SetMinPacketCount(4);
|
|
}
|
|
}else{
|
|
if(s->extraECEnabled){
|
|
s->extraECEnabled=false;
|
|
if(s->jitterBuffer)
|
|
s->jitterBuffer->SetMinPacketCount(2);
|
|
}
|
|
}
|
|
if(prevEnabled!=s->enabled && s->type==STREAM_TYPE_VIDEO && videoRenderer)
|
|
videoRenderer->SetStreamEnabled(s->enabled);
|
|
UpdateAudioOutputState();
|
|
break;
|
|
}
|
|
}
|
|
}else if(type==EXTRA_TYPE_STREAM_CSD){
|
|
LOGI("Received codec specific data");
|
|
/*
|
|
os.WriteByte(stream.id);
|
|
os.WriteByte(static_cast<unsigned char>(stream.codecSpecificData.size()));
|
|
for(Buffer& b:stream.codecSpecificData){
|
|
assert(b.Length()<255);
|
|
os.WriteByte(static_cast<unsigned char>(b.Length()));
|
|
os.WriteBytes(b);
|
|
}
|
|
Buffer buf(move(os));
|
|
SendExtra(buf, EXTRA_TYPE_STREAM_CSD);
|
|
*/
|
|
unsigned char streamID=in.ReadByte();
|
|
for(shared_ptr<Stream>& stm:incomingStreams){
|
|
if(stm->id==streamID){
|
|
stm->codecSpecificData.clear();
|
|
stm->csdIsValid=false;
|
|
stm->width=static_cast<unsigned int>(in.ReadInt16());
|
|
stm->height=static_cast<unsigned int>(in.ReadInt16());
|
|
size_t count=(size_t)in.ReadByte();
|
|
for(size_t i=0;i<count;i++){
|
|
size_t len=(size_t)in.ReadByte();
|
|
Buffer csd(len);
|
|
in.ReadBytes(*csd, len);
|
|
stm->codecSpecificData.push_back(move(csd));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}else if(type==EXTRA_TYPE_LAN_ENDPOINT){
|
|
if(!allowP2p)
|
|
return;
|
|
LOGV("received lan endpoint (extra)");
|
|
uint32_t peerAddr=(uint32_t) in.ReadInt32();
|
|
uint16_t peerPort=(uint16_t) in.ReadInt32();
|
|
MutexGuard m(endpointsMutex);
|
|
constexpr int64_t lanID=(int64_t)(FOURCC('L','A','N','4')) << 32;
|
|
if(currentEndpoint==lanID)
|
|
currentEndpoint=preferredRelay;
|
|
|
|
IPv4Address v4addr(peerAddr);
|
|
IPv6Address v6addr(string("::0"));
|
|
unsigned char peerTag[16];
|
|
Endpoint lan(lanID, peerPort, v4addr, v6addr, Endpoint::Type::UDP_P2P_LAN, peerTag);
|
|
endpoints[lanID]=lan;
|
|
}else if(type==EXTRA_TYPE_NETWORK_CHANGED){
|
|
LOGI("Peer network changed");
|
|
wasNetworkHandover=true;
|
|
const Endpoint& _currentEndpoint=endpoints.at(currentEndpoint);
|
|
if(_currentEndpoint.type!=Endpoint::Type::UDP_RELAY && _currentEndpoint.type!=Endpoint::Type::TCP_RELAY)
|
|
currentEndpoint=preferredRelay;
|
|
if(allowP2p)
|
|
SendPublicEndpointsRequest();
|
|
uint32_t flags=(uint32_t) in.ReadInt32();
|
|
dataSavingRequestedByPeer=(flags & INIT_FLAG_DATA_SAVING_ENABLED)==INIT_FLAG_DATA_SAVING_ENABLED;
|
|
UpdateDataSavingState();
|
|
UpdateAudioBitrateLimit();
|
|
ResetEndpointPingStats();
|
|
}else if(type==EXTRA_TYPE_GROUP_CALL_KEY){
|
|
if(!didReceiveGroupCallKey && !didSendGroupCallKey){
|
|
unsigned char groupKey[256];
|
|
in.ReadBytes(groupKey, 256);
|
|
messageThread.Post([this, &groupKey]{
|
|
if(callbacks.groupCallKeyReceived)
|
|
callbacks.groupCallKeyReceived(this, groupKey);
|
|
});
|
|
didReceiveGroupCallKey=true;
|
|
}
|
|
}else if(type==EXTRA_TYPE_REQUEST_GROUP){
|
|
if(!didInvokeUpgradeCallback){
|
|
messageThread.Post([this]{
|
|
if(callbacks.upgradeToGroupCallRequested)
|
|
callbacks.upgradeToGroupCallRequested(this);
|
|
});
|
|
didInvokeUpgradeCallback=true;
|
|
}
|
|
}else if(type==EXTRA_TYPE_IPV6_ENDPOINT){
|
|
if(!allowP2p)
|
|
return;
|
|
unsigned char _addr[16];
|
|
in.ReadBytes(_addr, 16);
|
|
IPv6Address addr(_addr);
|
|
uint16_t port=static_cast<uint16_t>(in.ReadInt16());
|
|
MutexGuard m(endpointsMutex);
|
|
peerIPv6Available=true;
|
|
LOGV("Received peer IPv6 endpoint [%s]:%u", addr.ToString().c_str(), port);
|
|
|
|
constexpr int64_t p2pID=(int64_t)(FOURCC('P','2','P','6')) << 32;
|
|
|
|
Endpoint ep;
|
|
ep.type=Endpoint::Type::UDP_P2P_INET;
|
|
ep.port=port;
|
|
ep.v6address=addr;
|
|
ep.id=p2pID;
|
|
endpoints[p2pID]=ep;
|
|
if(!myIPv6.IsEmpty())
|
|
currentEndpoint=p2pID;
|
|
}
|
|
}
|
|
|
|
void VoIPController::ProcessAcknowledgedOutgoingExtra(UnacknowledgedExtraData &extra){
|
|
if(extra.type==EXTRA_TYPE_GROUP_CALL_KEY){
|
|
if(!didReceiveGroupCallKeyAck){
|
|
didReceiveGroupCallKeyAck=true;
|
|
messageThread.Post([this]{
|
|
if(callbacks.groupCallKeySent)
|
|
callbacks.groupCallKeySent(this);
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
Endpoint& VoIPController::GetRemoteEndpoint(){
|
|
return endpoints.at(currentEndpoint);
|
|
}
|
|
|
|
Endpoint* VoIPController::GetEndpointForPacket(const PendingOutgoingPacket& pkt){
|
|
Endpoint* endpoint=NULL;
|
|
if(pkt.endpoint){
|
|
try{
|
|
endpoint=&endpoints.at(pkt.endpoint);
|
|
}catch(out_of_range& x){
|
|
LOGW("Unable to send packet via nonexistent endpoint %" PRIu64, pkt.endpoint);
|
|
return NULL;
|
|
}
|
|
}
|
|
if(!endpoint)
|
|
endpoint=&endpoints.at(currentEndpoint);
|
|
return endpoint;
|
|
}
|
|
|
|
bool VoIPController::SendOrEnqueuePacket(PendingOutgoingPacket pkt, bool enqueue){
|
|
Endpoint* endpoint=GetEndpointForPacket(pkt);
|
|
if(!endpoint){
|
|
abort();
|
|
return false;
|
|
}
|
|
|
|
|
|
bool canSend;
|
|
if(endpoint->type!=Endpoint::Type::TCP_RELAY){
|
|
canSend=realUdpSocket->IsReadyToSend();
|
|
}else{
|
|
if(!endpoint->socket){
|
|
LOGV("Connecting to %s:%u", endpoint->GetAddress().ToString().c_str(), endpoint->port);
|
|
if(proxyProtocol==PROXY_NONE){
|
|
endpoint->socket=new NetworkSocketTCPObfuscated(NetworkSocket::Create(NetworkProtocol::PROTO_TCP));
|
|
endpoint->socket->Connect(&endpoint->GetAddress(), endpoint->port);
|
|
}else if(proxyProtocol==PROXY_SOCKS5){
|
|
NetworkSocket* tcp=NetworkSocket::Create(NetworkProtocol::PROTO_TCP);
|
|
tcp->Connect(resolvedProxyAddress, proxyPort);
|
|
NetworkSocketSOCKS5Proxy* proxy=new NetworkSocketSOCKS5Proxy(tcp, NULL, proxyUsername, proxyPassword);
|
|
endpoint->socket=proxy;
|
|
endpoint->socket->Connect(&endpoint->GetAddress(), endpoint->port);
|
|
}
|
|
selectCanceller->CancelSelect();
|
|
}
|
|
canSend=endpoint->socket && endpoint->socket->IsReadyToSend();
|
|
}
|
|
if(!canSend){
|
|
if(enqueue){
|
|
LOGW("Not ready to send - enqueueing");
|
|
sendQueue.push_back(move(pkt));
|
|
}
|
|
return false;
|
|
}
|
|
if((endpoint->type==Endpoint::Type::TCP_RELAY && useTCP) || (endpoint->type!=Endpoint::Type::TCP_RELAY && useUDP)){
|
|
//BufferOutputStream p(buf, sizeof(buf));
|
|
BufferOutputStream p(1500);
|
|
WritePacketHeader(pkt.seq, &p, pkt.type, (uint32_t)pkt.len);
|
|
p.WriteBytes(pkt.data);
|
|
SendPacket(p.GetBuffer(), p.GetLength(), *endpoint, pkt);
|
|
if(pkt.type==PKT_STREAM_DATA){
|
|
unsentStreamPackets--;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void VoIPController::SendPacket(unsigned char *data, size_t len, Endpoint& ep, PendingOutgoingPacket& srcPacket){
|
|
if(stopping)
|
|
return;
|
|
if(ep.type==Endpoint::Type::TCP_RELAY && !useTCP)
|
|
return;
|
|
BufferOutputStream out(len+128);
|
|
if(ep.type==Endpoint::Type::UDP_RELAY || ep.type==Endpoint::Type::TCP_RELAY)
|
|
out.WriteBytes((unsigned char*)ep.peerTag, 16);
|
|
else if(peerVersion<9)
|
|
out.WriteBytes(callID, 16);
|
|
if(len>0){
|
|
if(useMTProto2){
|
|
BufferOutputStream inner(len+128);
|
|
size_t sizeSize;
|
|
if(peerVersion>=8 || (!peerVersion && connectionMaxLayer>=92)){
|
|
inner.WriteInt16((uint16_t) len);
|
|
sizeSize=0;
|
|
}else{
|
|
inner.WriteInt32((uint32_t) len);
|
|
out.WriteBytes(keyFingerprint, 8);
|
|
sizeSize=4;
|
|
}
|
|
inner.WriteBytes(data, len);
|
|
|
|
size_t padLen=16-inner.GetLength()%16;
|
|
if(padLen<16)
|
|
padLen+=16;
|
|
unsigned char padding[32];
|
|
crypto.rand_bytes((uint8_t *) padding, padLen);
|
|
inner.WriteBytes(padding, padLen);
|
|
assert(inner.GetLength()%16==0);
|
|
|
|
unsigned char key[32], iv[32], msgKey[16];
|
|
BufferOutputStream buf(len+32);
|
|
size_t x=isOutgoing ? 0 : 8;
|
|
buf.WriteBytes(encryptionKey+88+x, 32);
|
|
buf.WriteBytes(inner.GetBuffer()+sizeSize, inner.GetLength()-sizeSize);
|
|
unsigned char msgKeyLarge[32];
|
|
crypto.sha256(buf.GetBuffer(), buf.GetLength(), msgKeyLarge);
|
|
memcpy(msgKey, msgKeyLarge+8, 16);
|
|
KDF2(msgKey, isOutgoing ? 0 : 8, key, iv);
|
|
out.WriteBytes(msgKey, 16);
|
|
//LOGV("<- MSG KEY: %08x %08x %08x %08x, hashed %u", *reinterpret_cast<int32_t*>(msgKey), *reinterpret_cast<int32_t*>(msgKey+4), *reinterpret_cast<int32_t*>(msgKey+8), *reinterpret_cast<int32_t*>(msgKey+12), inner.GetLength()-4);
|
|
|
|
unsigned char aesOut[MSC_STACK_FALLBACK(inner.GetLength(), 1500)];
|
|
crypto.aes_ige_encrypt(inner.GetBuffer(), aesOut, inner.GetLength(), key, iv);
|
|
out.WriteBytes(aesOut, inner.GetLength());
|
|
}else{
|
|
BufferOutputStream inner(len+128);
|
|
inner.WriteInt32((int32_t)len);
|
|
inner.WriteBytes(data, len);
|
|
if(inner.GetLength()%16!=0){
|
|
size_t padLen=16-inner.GetLength()%16;
|
|
unsigned char padding[16];
|
|
crypto.rand_bytes((uint8_t *) padding, padLen);
|
|
inner.WriteBytes(padding, padLen);
|
|
}
|
|
assert(inner.GetLength()%16==0);
|
|
unsigned char key[32], iv[32], msgHash[SHA1_LENGTH];
|
|
crypto.sha1((uint8_t *) inner.GetBuffer(), len+4, msgHash);
|
|
out.WriteBytes(keyFingerprint, 8);
|
|
out.WriteBytes((msgHash+(SHA1_LENGTH-16)), 16);
|
|
KDF(msgHash+(SHA1_LENGTH-16), isOutgoing ? 0 : 8, key, iv);
|
|
unsigned char aesOut[MSC_STACK_FALLBACK(inner.GetLength(), 1500)];
|
|
crypto.aes_ige_encrypt(inner.GetBuffer(), aesOut, inner.GetLength(), key, iv);
|
|
out.WriteBytes(aesOut, inner.GetLength());
|
|
}
|
|
}
|
|
//LOGV("Sending %d bytes to %s:%d", out.GetLength(), ep.address.ToString().c_str(), ep.port);
|
|
#ifdef LOG_PACKETS
|
|
LOGV("Sending: to=%s:%u, seq=%u, length=%u, type=%s", ep.GetAddress().ToString().c_str(), ep.port, srcPacket.seq, out.GetLength(), GetPacketTypeString(srcPacket.type).c_str());
|
|
#endif
|
|
|
|
NetworkPacket pkt={0};
|
|
pkt.address=&ep.GetAddress();
|
|
pkt.port=ep.port;
|
|
pkt.length=out.GetLength();
|
|
pkt.data=out.GetBuffer();
|
|
pkt.protocol=ep.type==Endpoint::Type::TCP_RELAY ? PROTO_TCP : PROTO_UDP;
|
|
ActuallySendPacket(pkt, ep);
|
|
}
|
|
|
|
void VoIPController::ActuallySendPacket(NetworkPacket &pkt, Endpoint& ep){
|
|
//LOGI("Sending packet of %d bytes", pkt.length);
|
|
if(IS_MOBILE_NETWORK(networkType))
|
|
stats.bytesSentMobile+=(uint64_t)pkt.length;
|
|
else
|
|
stats.bytesSentWifi+=(uint64_t)pkt.length;
|
|
if(ep.type==Endpoint::Type::TCP_RELAY){
|
|
if(ep.socket && !ep.socket->IsFailed()){
|
|
ep.socket->Send(&pkt);
|
|
}
|
|
}else{
|
|
udpSocket->Send(&pkt);
|
|
}
|
|
}
|
|
|
|
|
|
std::string VoIPController::NetworkTypeToString(int type){
|
|
switch(type){
|
|
case NET_TYPE_WIFI:
|
|
return "wifi";
|
|
case NET_TYPE_GPRS:
|
|
return "gprs";
|
|
case NET_TYPE_EDGE:
|
|
return "edge";
|
|
case NET_TYPE_3G:
|
|
return "3g";
|
|
case NET_TYPE_HSPA:
|
|
return "hspa";
|
|
case NET_TYPE_LTE:
|
|
return "lte";
|
|
case NET_TYPE_ETHERNET:
|
|
return "ethernet";
|
|
case NET_TYPE_OTHER_HIGH_SPEED:
|
|
return "other_high_speed";
|
|
case NET_TYPE_OTHER_LOW_SPEED:
|
|
return "other_low_speed";
|
|
case NET_TYPE_DIALUP:
|
|
return "dialup";
|
|
case NET_TYPE_OTHER_MOBILE:
|
|
return "other_mobile";
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
|
|
std::string VoIPController::GetPacketTypeString(unsigned char type){
|
|
switch(type){
|
|
case PKT_INIT:
|
|
return "init";
|
|
case PKT_INIT_ACK:
|
|
return "init_ack";
|
|
case PKT_STREAM_STATE:
|
|
return "stream_state";
|
|
case PKT_STREAM_DATA:
|
|
return "stream_data";
|
|
case PKT_PING:
|
|
return "ping";
|
|
case PKT_PONG:
|
|
return "pong";
|
|
case PKT_LAN_ENDPOINT:
|
|
return "lan_endpoint";
|
|
case PKT_NETWORK_CHANGED:
|
|
return "network_changed";
|
|
case PKT_NOP:
|
|
return "nop";
|
|
case PKT_STREAM_EC:
|
|
return "stream_ec";
|
|
}
|
|
char buf[255];
|
|
snprintf(buf, sizeof(buf), "unknown(%u)", type);
|
|
return string(buf);
|
|
}
|
|
|
|
void VoIPController::AddIPv6Relays(){
|
|
if(!myIPv6.IsEmpty() && !didAddIPv6Relays){
|
|
unordered_map<string, vector<Endpoint>> endpointsByAddress;
|
|
MutexGuard m(endpointsMutex);
|
|
for(pair<const int64_t, Endpoint>& _e:endpoints){
|
|
Endpoint& e=_e.second;
|
|
if((e.type==Endpoint::Type::UDP_RELAY || e.type==Endpoint::Type::TCP_RELAY) && !e.v6address.IsEmpty() && !e.address.IsEmpty()){
|
|
endpointsByAddress[e.v6address.ToString()].push_back(e);
|
|
}
|
|
}
|
|
for(pair<const string, vector<Endpoint>>& addr:endpointsByAddress){
|
|
for(Endpoint& e:addr.second){
|
|
didAddIPv6Relays=true;
|
|
e.address=IPv4Address(0);
|
|
e.id=e.id ^ ((int64_t)(FOURCC('I','P','v','6')) << 32);
|
|
e.averageRTT=0;
|
|
e.lastPingSeq=0;
|
|
e.lastPingTime=0;
|
|
e.rtts.Reset();
|
|
e.udpPongCount=0;
|
|
endpoints[e.id]=e;
|
|
LOGD("Adding IPv6-only endpoint [%s]:%u", e.v6address.ToString().c_str(), e.port);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void VoIPController::AddTCPRelays(){
|
|
if(!didAddTcpRelays){
|
|
bool wasSetCurrentToTCP=setCurrentEndpointToTCP;
|
|
LOGV("Adding TCP relays");
|
|
MutexGuard m(endpointsMutex);
|
|
vector<Endpoint> relays;
|
|
for(pair<const int64_t, Endpoint> &_e:endpoints){
|
|
Endpoint& e=_e.second;
|
|
if(e.type!=Endpoint::Type::UDP_RELAY)
|
|
continue;
|
|
if(wasSetCurrentToTCP && !useUDP){
|
|
e.rtts.Reset();
|
|
e.averageRTT=0;
|
|
e.lastPingSeq=0;
|
|
}
|
|
Endpoint tcpRelay(e);
|
|
tcpRelay.type=Endpoint::Type::TCP_RELAY;
|
|
tcpRelay.averageRTT=0;
|
|
tcpRelay.lastPingSeq=0;
|
|
tcpRelay.lastPingTime=0;
|
|
tcpRelay.rtts.Reset();
|
|
tcpRelay.udpPongCount=0;
|
|
tcpRelay.id=tcpRelay.id ^ ((int64_t) (FOURCC('T', 'C', 'P', 0)) << 32);
|
|
if(setCurrentEndpointToTCP && endpoints.at(currentEndpoint).type!=Endpoint::Type::TCP_RELAY){
|
|
LOGV("Setting current endpoint to TCP");
|
|
setCurrentEndpointToTCP=false;
|
|
currentEndpoint=tcpRelay.id;
|
|
preferredRelay=tcpRelay.id;
|
|
}
|
|
relays.push_back(tcpRelay);
|
|
}
|
|
for(Endpoint& e:relays){
|
|
endpoints[e.id]=move(e);
|
|
}
|
|
didAddTcpRelays=true;
|
|
}
|
|
}
|
|
|
|
#if defined(__APPLE__)
|
|
static void initMachTimestart() {
|
|
mach_timebase_info_data_t tb = { 0, 0 };
|
|
mach_timebase_info(&tb);
|
|
VoIPController::machTimebase = tb.numer;
|
|
VoIPController::machTimebase /= tb.denom;
|
|
VoIPController::machTimestart = mach_absolute_time();
|
|
}
|
|
#endif
|
|
|
|
double VoIPController::GetCurrentTime(){
|
|
#if defined(__linux__)
|
|
struct timespec ts;
|
|
clock_gettime(CLOCK_MONOTONIC, &ts);
|
|
return ts.tv_sec+(double)ts.tv_nsec/1000000000.0;
|
|
#elif defined(__APPLE__)
|
|
static pthread_once_t token = PTHREAD_ONCE_INIT;
|
|
pthread_once(&token, &initMachTimestart);
|
|
return (mach_absolute_time() - machTimestart) * machTimebase / 1000000000.0f;
|
|
#elif defined(_WIN32)
|
|
if(!didInitWin32TimeScale){
|
|
LARGE_INTEGER scale;
|
|
QueryPerformanceFrequency(&scale);
|
|
win32TimeScale=scale.QuadPart;
|
|
didInitWin32TimeScale=true;
|
|
}
|
|
LARGE_INTEGER t;
|
|
QueryPerformanceCounter(&t);
|
|
return (double)t.QuadPart/(double)win32TimeScale;
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
void VoIPController::KDF(unsigned char* msgKey, size_t x, unsigned char* aesKey, unsigned char* aesIv){
|
|
uint8_t sA[SHA1_LENGTH], sB[SHA1_LENGTH], sC[SHA1_LENGTH], sD[SHA1_LENGTH];
|
|
BufferOutputStream buf(128);
|
|
buf.WriteBytes(msgKey, 16);
|
|
buf.WriteBytes(encryptionKey+x, 32);
|
|
crypto.sha1(buf.GetBuffer(), buf.GetLength(), sA);
|
|
buf.Reset();
|
|
buf.WriteBytes(encryptionKey+32+x, 16);
|
|
buf.WriteBytes(msgKey, 16);
|
|
buf.WriteBytes(encryptionKey+48+x, 16);
|
|
crypto.sha1(buf.GetBuffer(), buf.GetLength(), sB);
|
|
buf.Reset();
|
|
buf.WriteBytes(encryptionKey+64+x, 32);
|
|
buf.WriteBytes(msgKey, 16);
|
|
crypto.sha1(buf.GetBuffer(), buf.GetLength(), sC);
|
|
buf.Reset();
|
|
buf.WriteBytes(msgKey, 16);
|
|
buf.WriteBytes(encryptionKey+96+x, 32);
|
|
crypto.sha1(buf.GetBuffer(), buf.GetLength(), sD);
|
|
buf.Reset();
|
|
buf.WriteBytes(sA, 8);
|
|
buf.WriteBytes(sB+8, 12);
|
|
buf.WriteBytes(sC+4, 12);
|
|
assert(buf.GetLength()==32);
|
|
memcpy(aesKey, buf.GetBuffer(), 32);
|
|
buf.Reset();
|
|
buf.WriteBytes(sA+8, 12);
|
|
buf.WriteBytes(sB, 8);
|
|
buf.WriteBytes(sC+16, 4);
|
|
buf.WriteBytes(sD, 8);
|
|
assert(buf.GetLength()==32);
|
|
memcpy(aesIv, buf.GetBuffer(), 32);
|
|
}
|
|
|
|
void VoIPController::KDF2(unsigned char* msgKey, size_t x, unsigned char *aesKey, unsigned char *aesIv){
|
|
uint8_t sA[32], sB[32];
|
|
BufferOutputStream buf(128);
|
|
buf.WriteBytes(msgKey, 16);
|
|
buf.WriteBytes(encryptionKey+x, 36);
|
|
crypto.sha256(buf.GetBuffer(), buf.GetLength(), sA);
|
|
buf.Reset();
|
|
buf.WriteBytes(encryptionKey+40+x, 36);
|
|
buf.WriteBytes(msgKey, 16);
|
|
crypto.sha256(buf.GetBuffer(), buf.GetLength(), sB);
|
|
buf.Reset();
|
|
buf.WriteBytes(sA, 8);
|
|
buf.WriteBytes(sB+8, 16);
|
|
buf.WriteBytes(sA+24, 8);
|
|
memcpy(aesKey, buf.GetBuffer(), 32);
|
|
buf.Reset();
|
|
buf.WriteBytes(sB, 8);
|
|
buf.WriteBytes(sA+8, 16);
|
|
buf.WriteBytes(sB+24, 8);
|
|
memcpy(aesIv, buf.GetBuffer(), 32);
|
|
}
|
|
|
|
|
|
void VoIPController::SendPublicEndpointsRequest(const Endpoint& relay){
|
|
if(!useUDP)
|
|
return;
|
|
LOGD("Sending public endpoints request to %s:%d", relay.address.ToString().c_str(), relay.port);
|
|
publicEndpointsReqTime=GetCurrentTime();
|
|
waitingForRelayPeerInfo=true;
|
|
unsigned char buf[32];
|
|
memcpy(buf, relay.peerTag, 16);
|
|
memset(buf+16, 0xFF, 16);
|
|
NetworkPacket pkt={0};
|
|
pkt.data=buf;
|
|
pkt.length=32;
|
|
pkt.address=(NetworkAddress*)&relay.address;
|
|
pkt.port=relay.port;
|
|
pkt.protocol=PROTO_UDP;
|
|
udpSocket->Send(&pkt);
|
|
}
|
|
|
|
Endpoint& VoIPController::GetEndpointByType(int type){
|
|
if(type==Endpoint::Type::UDP_RELAY && preferredRelay)
|
|
return endpoints.at(preferredRelay);
|
|
for(pair<const int64_t, Endpoint>& e:endpoints){
|
|
if(e.second.type==type)
|
|
return e.second;
|
|
}
|
|
throw out_of_range("no endpoint");
|
|
}
|
|
|
|
|
|
void VoIPController::SendPacketReliably(unsigned char type, unsigned char *data, size_t len, double retryInterval, double timeout){
|
|
LOGD("Send reliably, type=%u, len=%u, retry=%.3f, timeout=%.3f", type, unsigned(len), retryInterval, timeout);
|
|
QueuedPacket pkt;
|
|
if(data){
|
|
Buffer b(len);
|
|
b.CopyFrom(data, 0, len);
|
|
pkt.data=move(b);
|
|
}
|
|
pkt.type=type;
|
|
pkt.retryInterval=retryInterval;
|
|
pkt.timeout=timeout;
|
|
pkt.firstSentTime=0;
|
|
pkt.lastSentTime=0;
|
|
{
|
|
MutexGuard m(queuedPacketsMutex);
|
|
queuedPackets.push_back(move(pkt));
|
|
}
|
|
messageThread.Post(std::bind(&VoIPController::UpdateQueuedPackets, this));
|
|
if(timeout>0.0){
|
|
messageThread.Post(std::bind(&VoIPController::UpdateQueuedPackets, this), timeout);
|
|
}
|
|
}
|
|
|
|
void VoIPController::SendExtra(Buffer &data, unsigned char type){
|
|
MutexGuard m(queuedPacketsMutex);
|
|
LOGV("Sending extra type %u length %lu", type, data.Length());
|
|
for(vector<UnacknowledgedExtraData>::iterator x=currentExtras.begin();x!=currentExtras.end();++x){
|
|
if(x->type==type){
|
|
x->firstContainingSeq=0;
|
|
x->data=move(data);
|
|
return;
|
|
}
|
|
}
|
|
UnacknowledgedExtraData xd={type, move(data), 0};
|
|
currentExtras.push_back(move(xd));
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void VoIPController::DebugCtl(int request, int param){
|
|
if(request==1){ // set bitrate
|
|
maxBitrate=param;
|
|
if(encoder){
|
|
encoder->SetBitrate(maxBitrate);
|
|
}
|
|
}else if(request==2){ // set packet loss
|
|
if(encoder){
|
|
encoder->SetPacketLoss(param);
|
|
}
|
|
}else if(request==3){ // force enable/disable p2p
|
|
allowP2p=param==1;
|
|
/*if(!allowP2p && currentEndpoint && currentEndpoint->type!=Endpoint::Type::UDP_RELAY){
|
|
currentEndpoint=preferredRelay;
|
|
}else if(allowP2p){
|
|
SendPublicEndpointsRequest();
|
|
}*/
|
|
BufferOutputStream s(4);
|
|
s.WriteInt32(dataSavingMode ? INIT_FLAG_DATA_SAVING_ENABLED : 0);
|
|
SendPacketReliably(PKT_NETWORK_CHANGED, s.GetBuffer(), s.GetLength(), 1, 20);
|
|
}else if(request==4){
|
|
if(echoCanceller)
|
|
echoCanceller->Enable(param==1);
|
|
}
|
|
}
|
|
|
|
void VoIPController::SendUdpPing(Endpoint& endpoint){
|
|
if(endpoint.type!=Endpoint::Type::UDP_RELAY)
|
|
return;
|
|
BufferOutputStream p(1024);
|
|
p.WriteBytes(endpoint.peerTag, 16);
|
|
p.WriteInt32(-1);
|
|
p.WriteInt32(-1);
|
|
p.WriteInt32(-1);
|
|
p.WriteInt32(-2);
|
|
int64_t id;
|
|
crypto.rand_bytes(reinterpret_cast<uint8_t*>(&id), 8);
|
|
p.WriteInt64(id);
|
|
NetworkPacket pkt={0};
|
|
pkt.address=&endpoint.GetAddress();
|
|
pkt.port=endpoint.port;
|
|
pkt.protocol=PROTO_UDP;
|
|
pkt.data=p.GetBuffer();
|
|
pkt.length=p.GetLength();
|
|
udpSocket->Send(&pkt);
|
|
LOGV("Sending UDP ping to %s:%d, id %" PRId64, endpoint.GetAddress().ToString().c_str(), endpoint.port, id);
|
|
}
|
|
|
|
|
|
void VoIPController::ResetUdpAvailability(){
|
|
LOGI("Resetting UDP availability");
|
|
if(udpPingTimeoutID!=MessageThread::INVALID_ID){
|
|
messageThread.Cancel(udpPingTimeoutID);
|
|
}
|
|
{
|
|
MutexGuard m(endpointsMutex);
|
|
for(pair<const int64_t, Endpoint>& e:endpoints){
|
|
e.second.udpPongCount=0;
|
|
}
|
|
}
|
|
udpPingCount=0;
|
|
udpConnectivityState=UDP_PING_PENDING;
|
|
udpPingTimeoutID=messageThread.Post(std::bind(&VoIPController::SendUdpPings, this), 0.0, 0.5);
|
|
}
|
|
|
|
void VoIPController::ResetEndpointPingStats(){
|
|
MutexGuard m(endpointsMutex);
|
|
for(pair<const int64_t, Endpoint>& e:endpoints){
|
|
e.second.averageRTT=0.0;
|
|
e.second.rtts.Reset();
|
|
}
|
|
}
|
|
|
|
|
|
|
|
#pragma mark - Video
|
|
|
|
void VoIPController::SetVideoSource(video::VideoSource *source){
|
|
if(videoSource){
|
|
videoSource->Stop();
|
|
videoSource->SetCallback(nullptr);
|
|
}
|
|
videoSource=source;
|
|
shared_ptr<Stream> stm=GetStreamByType(STREAM_TYPE_VIDEO, true);
|
|
if(videoSource){
|
|
if(!stm->enabled){
|
|
stm->enabled=true;
|
|
SendStreamFlags(*stm);
|
|
}
|
|
videoSource->Reset(stm->codec, min(peerMaxVideoResolution, INIT_VIDEO_RES_1080));
|
|
videoSource->Start();
|
|
videoSource->SetCallback(bind(&VoIPController::SendVideoFrame, this, placeholders::_1, placeholders::_2));
|
|
}else{
|
|
if(stm->enabled){
|
|
stm->enabled=false;
|
|
SendStreamFlags(*stm);
|
|
}
|
|
}
|
|
}
|
|
|
|
void VoIPController::SetVideoRenderer(video::VideoRenderer *renderer){
|
|
videoRenderer=renderer;
|
|
}
|
|
|
|
void VoIPController::SetVideoCodecSpecificData(const std::vector<Buffer>& data){
|
|
outgoingStreams[1]->codecSpecificData.clear();
|
|
for(const Buffer& csd:data){
|
|
outgoingStreams[1]->codecSpecificData.push_back(Buffer::CopyOf(csd));
|
|
}
|
|
LOGI("Set outgoing video stream CSD");
|
|
}
|
|
|
|
void VoIPController::SendVideoFrame(const Buffer &frame, uint32_t flags){
|
|
LOGI("Send video frame %u flags %u", (unsigned int)frame.Length(), flags);
|
|
shared_ptr<Stream> stm=GetStreamByType(STREAM_TYPE_VIDEO, true);
|
|
if(stm){
|
|
if(firstVideoFrameTime==0.0)
|
|
firstVideoFrameTime=GetCurrentTime();
|
|
|
|
if(videoKeyframeRequested){
|
|
if(flags & VIDEO_FRAME_FLAG_KEYFRAME){
|
|
sentVideoFrames.clear();
|
|
videoKeyframeRequested=false;
|
|
}else{
|
|
LOGV("Dropping input video frame waiting for key frame");
|
|
return;
|
|
}
|
|
}
|
|
|
|
uint32_t pts=videoFrameCount++;
|
|
if(!stm->csdIsValid){
|
|
vector<Buffer>& csd=videoSource->GetCodecSpecificData();
|
|
stm->codecSpecificData.clear();
|
|
for(Buffer& b:csd){
|
|
stm->codecSpecificData.push_back(Buffer::CopyOf(b));
|
|
}
|
|
stm->csdIsValid=true;
|
|
stm->width=videoSource->GetFrameWidth();
|
|
stm->height=videoSource->GetFrameHeight();
|
|
SendStreamCSD(*stm);
|
|
}
|
|
|
|
size_t segmentCount=frame.Length()/1024;
|
|
if(frame.Length()%1024>0)
|
|
segmentCount++;
|
|
SentVideoFrame sentFrame;
|
|
sentFrame.num=pts;
|
|
sentFrame.fragmentCount=static_cast<uint32_t>(segmentCount);
|
|
for(size_t seg=0;seg<segmentCount;seg++){
|
|
BufferOutputStream pkt(1500);
|
|
size_t offset=seg*1024;
|
|
size_t len=MIN(1024, frame.Length()-offset);
|
|
unsigned char pflags=STREAM_DATA_FLAG_LEN16;
|
|
//pflags |= STREAM_DATA_FLAG_HAS_MORE_FLAGS;
|
|
pkt.WriteByte((unsigned char) (stm->id | pflags)); // streamID + flags
|
|
int16_t lengthAndFlags=static_cast<int16_t>(len & 0x7FF);
|
|
if(segmentCount>1)
|
|
lengthAndFlags |= STREAM_DATA_XFLAG_FRAGMENTED;
|
|
if(flags & VIDEO_FRAME_FLAG_KEYFRAME)
|
|
lengthAndFlags |= STREAM_DATA_XFLAG_KEYFRAME;
|
|
pkt.WriteInt16(lengthAndFlags);
|
|
//pkt.WriteInt32(audioTimestampOut);
|
|
pkt.WriteInt32(pts);
|
|
if(segmentCount>1){
|
|
pkt.WriteByte((unsigned char)seg);
|
|
pkt.WriteByte((unsigned char)segmentCount);
|
|
}
|
|
//LOGV("Sending segment %u of %u", (unsigned int)seg, (unsigned int)segmentCount);
|
|
pkt.WriteBytes(frame, offset, len);
|
|
unsentStreamPackets++;
|
|
|
|
uint32_t seq=GenerateOutSeq();
|
|
PendingOutgoingPacket p{
|
|
/*.seq=*/seq,
|
|
/*.type=*/PKT_STREAM_DATA,
|
|
/*.len=*/pkt.GetLength(),
|
|
/*.data=*/Buffer(move(pkt)),
|
|
/*.endpoint=*/0,
|
|
};
|
|
SendOrEnqueuePacket(move(p));
|
|
sentFrame.unacknowledgedPackets.push_back(seq);
|
|
}
|
|
MutexGuard m(sentVideoFramesMutex);
|
|
sentVideoFrames.push_back(sentFrame);
|
|
}
|
|
}
|
|
|
|
void VoIPController::SendStreamCSD(VoIPController::Stream &stream){
|
|
assert(stream.csdIsValid);
|
|
|
|
BufferOutputStream os(256);
|
|
os.WriteByte(stream.id);
|
|
os.WriteInt16((int16_t)stream.width);
|
|
os.WriteInt16((int16_t)stream.height);
|
|
os.WriteByte(static_cast<unsigned char>(stream.codecSpecificData.size()));
|
|
for(Buffer& b:stream.codecSpecificData){
|
|
assert(b.Length()<255);
|
|
os.WriteByte(static_cast<unsigned char>(b.Length()));
|
|
os.WriteBytes(b);
|
|
}
|
|
Buffer buf(move(os));
|
|
SendExtra(buf, EXTRA_TYPE_STREAM_CSD);
|
|
}
|
|
|
|
void VoIPController::ProcessIncomingVideoFrame(Buffer frame, uint32_t pts, bool keyframe){
|
|
//LOGI("Incoming video frame size %u pts %u", (unsigned int)frame.Length(), pts);
|
|
if(frame.Length()==0){
|
|
LOGE("EMPTY FRAME");
|
|
}
|
|
if(videoRenderer){
|
|
shared_ptr<Stream> stm=GetStreamByType(STREAM_TYPE_VIDEO, false);
|
|
if(!stm->csdIsValid){
|
|
videoRenderer->Reset(stm->codec, stm->width, stm->height, stm->codecSpecificData);
|
|
stm->csdIsValid=true;
|
|
}
|
|
if(lastReceivedVideoFrameNumber==UINT32_MAX || lastReceivedVideoFrameNumber==pts-1 || keyframe){
|
|
lastReceivedVideoFrameNumber=pts;
|
|
//LOGV("3 before decode %u", (unsigned int)frame.Length());
|
|
videoRenderer->DecodeAndDisplay(move(frame), pts);
|
|
}else{
|
|
LOGW("Skipping non-keyframe after packet loss...");
|
|
}
|
|
}
|
|
}
|
|
|
|
void VoIPController::SetupOutgoingVideoStream(){
|
|
vector<uint32_t> myEncoders=video::VideoSource::GetAvailableEncoders();
|
|
shared_ptr<Stream> vstm=make_shared<Stream>();
|
|
vstm->id=2;
|
|
vstm->type=STREAM_TYPE_VIDEO;
|
|
|
|
if(find(myEncoders.begin(), myEncoders.end(), CODEC_HEVC)!=myEncoders.end() && find(peerVideoDecoders.begin(), peerVideoDecoders.end(), CODEC_HEVC)!=peerVideoDecoders.end()){
|
|
vstm->codec=CODEC_HEVC;
|
|
}else if(find(myEncoders.begin(), myEncoders.end(), CODEC_AVC)!=myEncoders.end() && find(peerVideoDecoders.begin(), peerVideoDecoders.end(), CODEC_AVC)!=peerVideoDecoders.end()){
|
|
vstm->codec=CODEC_AVC;
|
|
}else if(find(myEncoders.begin(), myEncoders.end(), CODEC_VP8)!=myEncoders.end() && find(peerVideoDecoders.begin(), peerVideoDecoders.end(), CODEC_VP8)!=peerVideoDecoders.end()){
|
|
vstm->codec=CODEC_VP8;
|
|
}else{
|
|
LOGW("Can't setup outgoing video stream: no codecs in common");
|
|
return;
|
|
}
|
|
|
|
vstm->enabled=false;
|
|
outgoingStreams.push_back(vstm);
|
|
}
|
|
|
|
#pragma mark - Timer methods
|
|
|
|
void VoIPController::SendUdpPings(){
|
|
LOGW("Send udp pings");
|
|
MutexGuard m(endpointsMutex);
|
|
for(pair<const int64_t, Endpoint>& e:endpoints){
|
|
if(e.second.type==Endpoint::Type::UDP_RELAY){
|
|
SendUdpPing(e.second);
|
|
}
|
|
}
|
|
if(udpConnectivityState==UDP_UNKNOWN || udpConnectivityState==UDP_PING_PENDING)
|
|
udpConnectivityState=UDP_PING_SENT;
|
|
udpPingCount++;
|
|
if(udpPingCount==4 || udpPingCount==10){
|
|
messageThread.CancelSelf();
|
|
udpPingTimeoutID=messageThread.Post(std::bind(&VoIPController::EvaluateUdpPingResults, this), 1.0);
|
|
}
|
|
}
|
|
|
|
void VoIPController::EvaluateUdpPingResults(){
|
|
double avgPongs=0;
|
|
int count=0;
|
|
for(pair<const int64_t, Endpoint>& _e:endpoints){
|
|
Endpoint& e=_e.second;
|
|
if(e.type==Endpoint::Type::UDP_RELAY){
|
|
if(e.udpPongCount>0){
|
|
avgPongs+=(double) e.udpPongCount;
|
|
count++;
|
|
}
|
|
}
|
|
}
|
|
if(count>0)
|
|
avgPongs/=(double)count;
|
|
else
|
|
avgPongs=0.0;
|
|
LOGI("UDP ping reply count: %.2f", avgPongs);
|
|
if(avgPongs==0.0 && proxyProtocol==PROXY_SOCKS5 && udpSocket!=realUdpSocket){
|
|
LOGI("Proxy does not let UDP through, closing proxy connection and using UDP directly");
|
|
NetworkSocket* proxySocket=udpSocket;
|
|
proxySocket->Close();
|
|
udpSocket=realUdpSocket;
|
|
selectCanceller->CancelSelect();
|
|
delete proxySocket;
|
|
proxySupportsUDP=false;
|
|
ResetUdpAvailability();
|
|
return;
|
|
}
|
|
bool configUseTCP=ServerConfig::GetSharedInstance()->GetBoolean("use_tcp", true);
|
|
if(configUseTCP){
|
|
if(avgPongs==0.0 || (udpConnectivityState==UDP_BAD && avgPongs<7.0)){
|
|
if(needRateFlags & NEED_RATE_FLAG_UDP_NA)
|
|
needRate=true;
|
|
udpConnectivityState=UDP_NOT_AVAILABLE;
|
|
useTCP=true;
|
|
useUDP=avgPongs>1.0;
|
|
if(endpoints.at(currentEndpoint).type!=Endpoint::Type::TCP_RELAY)
|
|
setCurrentEndpointToTCP=true;
|
|
AddTCPRelays();
|
|
waitingForRelayPeerInfo=false;
|
|
}else if(avgPongs<3.0){
|
|
if(needRateFlags & NEED_RATE_FLAG_UDP_BAD)
|
|
needRate=true;
|
|
udpConnectivityState=UDP_BAD;
|
|
useTCP=true;
|
|
setCurrentEndpointToTCP=true;
|
|
AddTCPRelays();
|
|
udpPingTimeoutID=messageThread.Post(std::bind(&VoIPController::SendUdpPings, this), 0.5, 0.5);
|
|
}else{
|
|
udpPingTimeoutID=MessageThread::INVALID_ID;
|
|
udpConnectivityState=UDP_AVAILABLE;
|
|
}
|
|
}else{
|
|
udpPingTimeoutID=MessageThread::INVALID_ID;
|
|
udpConnectivityState=UDP_NOT_AVAILABLE;
|
|
}
|
|
}
|
|
|
|
void VoIPController::SendRelayPings(){
|
|
MutexGuard m(endpointsMutex);
|
|
if((state==STATE_ESTABLISHED || state==STATE_RECONNECTING) && endpoints.size()>1){
|
|
Endpoint* _preferredRelay=&endpoints.at(preferredRelay);
|
|
Endpoint* _currentEndpoint=&endpoints.at(currentEndpoint);
|
|
Endpoint* minPingRelay=_preferredRelay;
|
|
double minPing=_preferredRelay->averageRTT*(_preferredRelay->type==Endpoint::Type::TCP_RELAY ? 2 : 1);
|
|
if(minPing==0.0) // force the switch to an available relay, if any
|
|
minPing=DBL_MAX;
|
|
for(pair<const int64_t, Endpoint>& _endpoint:endpoints){
|
|
Endpoint& endpoint=_endpoint.second;
|
|
if(endpoint.type==Endpoint::Type::TCP_RELAY && !useTCP)
|
|
continue;
|
|
if(endpoint.type==Endpoint::Type::UDP_RELAY && !useUDP)
|
|
continue;
|
|
if(GetCurrentTime()-endpoint.lastPingTime>=10){
|
|
LOGV("Sending ping to %s", endpoint.GetAddress().ToString().c_str());
|
|
SendOrEnqueuePacket(PendingOutgoingPacket{
|
|
/*.seq=*/(endpoint.lastPingSeq=GenerateOutSeq()),
|
|
/*.type=*/PKT_PING,
|
|
/*.len=*/0,
|
|
/*.data=*/Buffer(),
|
|
/*.endpoint=*/endpoint.id
|
|
});
|
|
endpoint.lastPingTime=GetCurrentTime();
|
|
}
|
|
if((useUDP && endpoint.type==Endpoint::Type::UDP_RELAY) || (useTCP && endpoint.type==Endpoint::Type::TCP_RELAY)){
|
|
double k=endpoint.type==Endpoint::Type::UDP_RELAY ? 1 : 2;
|
|
if(endpoint.averageRTT>0 && endpoint.averageRTT*k<minPing*relaySwitchThreshold){
|
|
minPing=endpoint.averageRTT*k;
|
|
minPingRelay=&endpoint;
|
|
}
|
|
}
|
|
}
|
|
if(minPingRelay->id!=preferredRelay){
|
|
preferredRelay=minPingRelay->id;
|
|
_preferredRelay=minPingRelay;
|
|
LOGV("set preferred relay to %s", _preferredRelay->address.ToString().c_str());
|
|
if(_currentEndpoint->type==Endpoint::Type::UDP_RELAY || _currentEndpoint->type==Endpoint::Type::TCP_RELAY){
|
|
currentEndpoint=preferredRelay;
|
|
_currentEndpoint=_preferredRelay;
|
|
}
|
|
}
|
|
if(_currentEndpoint->type==Endpoint::Type::UDP_RELAY && useUDP){
|
|
constexpr int64_t p2pID=(int64_t)(FOURCC('P','2','P','4')) << 32;
|
|
constexpr int64_t lanID=(int64_t)(FOURCC('L','A','N','4')) << 32;
|
|
|
|
if(endpoints.find(p2pID)!=endpoints.end()){
|
|
Endpoint& p2p=endpoints[p2pID];
|
|
if(endpoints.find(lanID)!=endpoints.end() && endpoints[lanID].averageRTT>0 && endpoints[lanID].averageRTT<minPing*relayToP2pSwitchThreshold){
|
|
currentEndpoint=lanID;
|
|
LOGI("Switching to p2p (LAN)");
|
|
}else{
|
|
if(p2p.averageRTT>0 && p2p.averageRTT<minPing*relayToP2pSwitchThreshold){
|
|
currentEndpoint=p2pID;
|
|
LOGI("Switching to p2p (Inet)");
|
|
}
|
|
}
|
|
}
|
|
}else{
|
|
if(minPing>0 && minPing<_currentEndpoint->averageRTT*p2pToRelaySwitchThreshold){
|
|
LOGI("Switching to relay");
|
|
currentEndpoint=preferredRelay;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void VoIPController::UpdateRTT(){
|
|
rttHistory.Add(GetAverageRTT());
|
|
//double v=rttHistory.Average();
|
|
if(rttHistory[0]>10.0 && rttHistory[8]>10.0 && (networkType==NET_TYPE_EDGE || networkType==NET_TYPE_GPRS)){
|
|
waitingForAcks=true;
|
|
}else{
|
|
waitingForAcks=false;
|
|
}
|
|
//LOGI("%.3lf/%.3lf, rtt diff %.3lf, waiting=%d, queue=%d", rttHistory[0], rttHistory[8], v, waitingForAcks, sendQueue->Size());
|
|
for(vector<shared_ptr<Stream>>::iterator stm=incomingStreams.begin();stm!=incomingStreams.end();++stm){
|
|
if((*stm)->jitterBuffer){
|
|
int lostCount=(*stm)->jitterBuffer->GetAndResetLostPacketCount();
|
|
if(lostCount>0 || (lostCount<0 && recvLossCount>((uint32_t) -lostCount)))
|
|
recvLossCount+=lostCount;
|
|
}
|
|
}
|
|
}
|
|
|
|
void VoIPController::UpdateCongestion(){
|
|
if(conctl && encoder){
|
|
uint32_t sendLossCount=conctl->GetSendLossCount();
|
|
sendLossCountHistory.Add(sendLossCount-prevSendLossCount);
|
|
prevSendLossCount=sendLossCount;
|
|
double packetsPerSec=1000/(double) outgoingStreams[0]->frameDuration;
|
|
double avgSendLossCount=sendLossCountHistory.Average()/packetsPerSec;
|
|
//LOGV("avg send loss: %.3f%%", avgSendLossCount*100);
|
|
|
|
if(avgSendLossCount>packetLossToEnableExtraEC && networkType!=NET_TYPE_GPRS && networkType!=NET_TYPE_EDGE){
|
|
if(!shittyInternetMode){
|
|
// Shitty Internet Mode™. Redundant redundancy you can trust.
|
|
shittyInternetMode=true;
|
|
for(shared_ptr<Stream> &s:outgoingStreams){
|
|
if(s->type==STREAM_TYPE_AUDIO){
|
|
s->extraECEnabled=true;
|
|
SendStreamFlags(*s);
|
|
break;
|
|
}
|
|
}
|
|
if(encoder)
|
|
encoder->SetSecondaryEncoderEnabled(true);
|
|
LOGW("Enabling extra EC");
|
|
if(needRateFlags & NEED_RATE_FLAG_SHITTY_INTERNET_MODE)
|
|
needRate=true;
|
|
wasExtraEC=true;
|
|
}
|
|
}
|
|
|
|
if(avgSendLossCount>0.08){
|
|
encoder->SetPacketLoss(40);
|
|
extraEcLevel=4;
|
|
}else if(avgSendLossCount>0.075){
|
|
encoder->SetPacketLoss(35);
|
|
extraEcLevel=3;
|
|
}else if(avgSendLossCount>0.05){
|
|
encoder->SetPacketLoss(30);
|
|
extraEcLevel=3;
|
|
}else if(avgSendLossCount>0.03){
|
|
encoder->SetPacketLoss(25);
|
|
extraEcLevel=2;
|
|
}else if(avgSendLossCount>0.02){
|
|
encoder->SetPacketLoss(20);
|
|
extraEcLevel=2;
|
|
}else if(avgSendLossCount>0.01){
|
|
encoder->SetPacketLoss(17);
|
|
}else{
|
|
encoder->SetPacketLoss(15);
|
|
}
|
|
if(avgSendLossCount>rateMaxAcceptableSendLoss)
|
|
needRate=true;
|
|
|
|
if((avgSendLossCount<packetLossToEnableExtraEC || networkType==NET_TYPE_EDGE || networkType==NET_TYPE_GPRS) && shittyInternetMode){
|
|
shittyInternetMode=false;
|
|
for(shared_ptr<Stream> &s:outgoingStreams){
|
|
if(s->type==STREAM_TYPE_AUDIO){
|
|
s->extraECEnabled=false;
|
|
SendStreamFlags(*s);
|
|
break;
|
|
}
|
|
}
|
|
if(encoder)
|
|
encoder->SetSecondaryEncoderEnabled(false);
|
|
LOGW("Disabling extra EC");
|
|
}
|
|
if(!wasEncoderLaggy && encoder->GetComplexity()<10)
|
|
wasEncoderLaggy=true;
|
|
}
|
|
}
|
|
|
|
void VoIPController::UpdateAudioBitrate(){
|
|
if(encoder && conctl){
|
|
double time=GetCurrentTime();
|
|
if((audioInput && !audioInput->IsInitialized()) || (audioOutput && !audioOutput->IsInitialized())){
|
|
LOGE("Audio I/O failed");
|
|
lastError=ERROR_AUDIO_IO;
|
|
SetState(STATE_FAILED);
|
|
}
|
|
|
|
int act=conctl->GetBandwidthControlAction();
|
|
if(shittyInternetMode){
|
|
encoder->SetBitrate(8000);
|
|
}else if(act==TGVOIP_CONCTL_ACT_DECREASE){
|
|
uint32_t bitrate=encoder->GetBitrate();
|
|
if(bitrate>8000)
|
|
encoder->SetBitrate(bitrate<(minAudioBitrate+audioBitrateStepDecr) ? minAudioBitrate : (bitrate-audioBitrateStepDecr));
|
|
}else if(act==TGVOIP_CONCTL_ACT_INCREASE){
|
|
uint32_t bitrate=encoder->GetBitrate();
|
|
if(bitrate<maxBitrate)
|
|
encoder->SetBitrate(bitrate+audioBitrateStepIncr);
|
|
}
|
|
|
|
if(state==STATE_ESTABLISHED && time-lastRecvPacketTime>=reconnectingTimeout){
|
|
SetState(STATE_RECONNECTING);
|
|
if(needRateFlags & NEED_RATE_FLAG_RECONNECTING)
|
|
needRate=true;
|
|
wasReconnecting=true;
|
|
ResetUdpAvailability();
|
|
}
|
|
|
|
if(state==STATE_ESTABLISHED || state==STATE_RECONNECTING){
|
|
if(time-lastRecvPacketTime>=config.recvTimeout){
|
|
const Endpoint& _currentEndpoint=endpoints.at(currentEndpoint);
|
|
if(_currentEndpoint.type!=Endpoint::Type::UDP_RELAY && _currentEndpoint.type!=Endpoint::Type::TCP_RELAY){
|
|
LOGW("Packet receive timeout, switching to relay");
|
|
currentEndpoint=preferredRelay;
|
|
for(pair<const int64_t, Endpoint>& _e:endpoints){
|
|
Endpoint& e=_e.second;
|
|
if(e.type==Endpoint::Type::UDP_P2P_INET || e.type==Endpoint::Type::UDP_P2P_LAN){
|
|
e.averageRTT=0;
|
|
e.rtts.Reset();
|
|
}
|
|
}
|
|
if(allowP2p){
|
|
SendPublicEndpointsRequest();
|
|
}
|
|
UpdateDataSavingState();
|
|
UpdateAudioBitrateLimit();
|
|
BufferOutputStream s(4);
|
|
s.WriteInt32(dataSavingMode ? INIT_FLAG_DATA_SAVING_ENABLED : 0);
|
|
if(peerVersion<6){
|
|
SendPacketReliably(PKT_NETWORK_CHANGED, s.GetBuffer(), s.GetLength(), 1, 20);
|
|
}else{
|
|
Buffer buf(move(s));
|
|
SendExtra(buf, EXTRA_TYPE_NETWORK_CHANGED);
|
|
}
|
|
lastRecvPacketTime=time;
|
|
}else{
|
|
LOGW("Packet receive timeout, disconnecting");
|
|
lastError=ERROR_TIMEOUT;
|
|
SetState(STATE_FAILED);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void VoIPController::UpdateSignalBars(){
|
|
int prevSignalBarCount=GetSignalBarsCount();
|
|
double packetsPerSec=1000/(double) outgoingStreams[0]->frameDuration;
|
|
double avgSendLossCount=sendLossCountHistory.Average()/packetsPerSec;
|
|
|
|
int signalBarCount=4;
|
|
if(state==STATE_RECONNECTING || waitingForAcks)
|
|
signalBarCount=1;
|
|
if(endpoints.at(currentEndpoint).type==Endpoint::Type::TCP_RELAY){
|
|
signalBarCount=MIN(signalBarCount, 3);
|
|
}
|
|
if(avgSendLossCount>0.1){
|
|
signalBarCount=1;
|
|
}else if(avgSendLossCount>0.0625){
|
|
signalBarCount=MIN(signalBarCount, 2);
|
|
}else if(avgSendLossCount>0.025){
|
|
signalBarCount=MIN(signalBarCount, 3);
|
|
}
|
|
|
|
for(shared_ptr<Stream>& stm:incomingStreams){
|
|
if(stm->jitterBuffer){
|
|
double avgLateCount[3];
|
|
stm->jitterBuffer->GetAverageLateCount(avgLateCount);
|
|
if(avgLateCount[2]>=0.2)
|
|
signalBarCount=1;
|
|
else if(avgLateCount[2]>=0.1)
|
|
signalBarCount=MIN(signalBarCount, 2);
|
|
}
|
|
}
|
|
|
|
signalBarsHistory.Add(static_cast<unsigned char>(signalBarCount));
|
|
//LOGV("Signal bar count history %08X", *reinterpret_cast<uint32_t *>(&signalBarsHistory));
|
|
int _signalBarCount=GetSignalBarsCount();
|
|
if(_signalBarCount!=prevSignalBarCount){
|
|
LOGD("SIGNAL BAR COUNT CHANGED: %d", _signalBarCount);
|
|
if(callbacks.signalBarCountChanged)
|
|
callbacks.signalBarCountChanged(this, _signalBarCount);
|
|
}
|
|
}
|
|
|
|
void VoIPController::UpdateQueuedPackets(){
|
|
vector<PendingOutgoingPacket> packetsToSend;
|
|
{
|
|
MutexGuard m(queuedPacketsMutex);
|
|
for(std::vector<QueuedPacket>::iterator qp=queuedPackets.begin(); qp!=queuedPackets.end();){
|
|
if(qp->timeout>0 && qp->firstSentTime>0 && GetCurrentTime()-qp->firstSentTime>=qp->timeout){
|
|
LOGD("Removing queued packet because of timeout");
|
|
qp=queuedPackets.erase(qp);
|
|
continue;
|
|
}
|
|
if(GetCurrentTime()-qp->lastSentTime>=qp->retryInterval){
|
|
messageThread.Post(std::bind(&VoIPController::UpdateQueuedPackets, this), qp->retryInterval);
|
|
uint32_t seq=GenerateOutSeq();
|
|
qp->seqs.Add(seq);
|
|
qp->lastSentTime=GetCurrentTime();
|
|
//LOGD("Sending queued packet, seq=%u, type=%u, len=%u", seq, qp.type, qp.data.Length());
|
|
Buffer buf(qp->data.Length());
|
|
if(qp->firstSentTime==0)
|
|
qp->firstSentTime=qp->lastSentTime;
|
|
if(qp->data.Length())
|
|
buf.CopyFrom(qp->data, qp->data.Length());
|
|
packetsToSend.push_back(PendingOutgoingPacket{
|
|
/*.seq=*/seq,
|
|
/*.type=*/qp->type,
|
|
/*.len=*/qp->data.Length(),
|
|
/*.data=*/move(buf),
|
|
/*.endpoint=*/0
|
|
});
|
|
}
|
|
++qp;
|
|
}
|
|
}
|
|
for(PendingOutgoingPacket& pkt:packetsToSend){
|
|
SendOrEnqueuePacket(move(pkt));
|
|
}
|
|
}
|
|
|
|
void VoIPController::SendNopPacket(){
|
|
if(state!=STATE_ESTABLISHED)
|
|
return;
|
|
SendOrEnqueuePacket(PendingOutgoingPacket{
|
|
/*.seq=*/(firstSentPing=GenerateOutSeq()),
|
|
/*.type=*/PKT_NOP,
|
|
/*.len=*/0,
|
|
/*.data=*/Buffer(),
|
|
/*.endpoint=*/0
|
|
});
|
|
}
|
|
|
|
void VoIPController::SendPublicEndpointsRequest(){
|
|
if(!allowP2p)
|
|
return;
|
|
LOGI("Sending public endpoints request");
|
|
MutexGuard m(endpointsMutex);
|
|
for(pair<const int64_t, Endpoint>& e:endpoints){
|
|
if(e.second.type==Endpoint::Type::UDP_RELAY && !e.second.IsIPv6Only()){
|
|
SendPublicEndpointsRequest(e.second);
|
|
}
|
|
}
|
|
publicEndpointsReqCount++;
|
|
if(publicEndpointsReqCount<10){
|
|
messageThread.Post([this]{
|
|
if(waitingForRelayPeerInfo){
|
|
LOGW("Resending peer relay info request");
|
|
SendPublicEndpointsRequest();
|
|
}
|
|
}, 5.0);
|
|
}else{
|
|
publicEndpointsReqCount=0;
|
|
}
|
|
}
|
|
|
|
void VoIPController::TickJitterBufferAngCongestionControl(){
|
|
// TODO get rid of this and update states of these things internally and retroactively
|
|
for(shared_ptr<Stream>& stm:incomingStreams){
|
|
if(stm->jitterBuffer){
|
|
stm->jitterBuffer->Tick();
|
|
}
|
|
}
|
|
if(conctl){
|
|
conctl->Tick();
|
|
}
|
|
}
|
|
|
|
#pragma mark - Endpoint
|
|
|
|
Endpoint::Endpoint(int64_t id, uint16_t port, IPv4Address& _address, IPv6Address& _v6address, Type type, unsigned char peerTag[16]) : address(_address), v6address(_v6address){
|
|
this->id=id;
|
|
this->port=port;
|
|
this->type=type;
|
|
memcpy(this->peerTag, peerTag, 16);
|
|
if(type==Type::UDP_RELAY && ServerConfig::GetSharedInstance()->GetBoolean("force_tcp", false))
|
|
this->type=Type::TCP_RELAY;
|
|
|
|
lastPingSeq=0;
|
|
lastPingTime=0;
|
|
averageRTT=0;
|
|
socket=NULL;
|
|
udpPongCount=0;
|
|
}
|
|
|
|
Endpoint::Endpoint() : address(0), v6address(string("::0")) {
|
|
lastPingSeq=0;
|
|
lastPingTime=0;
|
|
averageRTT=0;
|
|
socket=NULL;
|
|
udpPongCount=0;
|
|
}
|
|
|
|
const NetworkAddress &Endpoint::GetAddress() const{
|
|
return IsIPv6Only() ? (NetworkAddress&)v6address : (NetworkAddress&)address;
|
|
}
|
|
|
|
NetworkAddress &Endpoint::GetAddress(){
|
|
return IsIPv6Only() ? (NetworkAddress&)v6address : (NetworkAddress&)address;
|
|
}
|
|
|
|
bool Endpoint::IsIPv6Only() const{
|
|
return address.IsEmpty() && !v6address.IsEmpty();
|
|
}
|
|
|
|
Endpoint::~Endpoint(){
|
|
if(socket){
|
|
socket->Close();
|
|
delete socket;
|
|
}
|
|
}
|
|
|
|
#pragma mark - AudioInputTester
|
|
|
|
AudioInputTester::AudioInputTester(std::string deviceID) : deviceID(deviceID){
|
|
io=audio::AudioIO::Create(deviceID, "default");
|
|
if(io->Failed()){
|
|
LOGE("Audio IO failed");
|
|
return;
|
|
}
|
|
input=io->GetInput();
|
|
input->SetCallback([](unsigned char* data, size_t size, void* ctx) -> size_t{
|
|
reinterpret_cast<AudioInputTester*>(ctx)->Update(reinterpret_cast<int16_t*>(data), size/2);
|
|
return 0;
|
|
}, this);
|
|
input->Start();
|
|
/*thread=new MessageThread();
|
|
thread->Start();
|
|
thread->Post([this]{
|
|
this->callback(maxSample/(float)INT16_MAX);
|
|
maxSample=0;
|
|
}, updateInterval, updateInterval);*/
|
|
}
|
|
|
|
AudioInputTester::~AudioInputTester(){
|
|
//thread->Stop();
|
|
//delete thread;
|
|
input->Stop();
|
|
delete io;
|
|
}
|
|
|
|
void AudioInputTester::Update(int16_t *samples, size_t count){
|
|
for(size_t i=0;i<count;i++){
|
|
int16_t s=abs(samples[i]);
|
|
if(s>maxSample)
|
|
maxSample=s;
|
|
}
|
|
}
|
|
|
|
float AudioInputTester::GetAndResetLevel(){
|
|
float s=maxSample;
|
|
maxSample=0;
|
|
return s/(float)INT16_MAX;
|
|
}
|