1 /* 2 * libjingle 3 * Copyright 2009 Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include "talk/p2p/base/p2ptransportchannel.h" 29 #include "talk/p2p/base/testrelayserver.h" 30 #include "talk/p2p/base/teststunserver.h" 31 #include "talk/p2p/base/testturnserver.h" 32 #include "talk/p2p/client/basicportallocator.h" 33 #include "webrtc/base/dscp.h" 34 #include "webrtc/base/fakenetwork.h" 35 #include "webrtc/base/firewallsocketserver.h" 36 #include "webrtc/base/gunit.h" 37 #include "webrtc/base/helpers.h" 38 #include "webrtc/base/logging.h" 39 #include "webrtc/base/natserver.h" 40 #include "webrtc/base/natsocketfactory.h" 41 #include "webrtc/base/physicalsocketserver.h" 42 #include "webrtc/base/proxyserver.h" 43 #include "webrtc/base/socketaddress.h" 44 #include "webrtc/base/ssladapter.h" 45 #include "webrtc/base/thread.h" 46 #include "webrtc/base/virtualsocketserver.h" 47 48 using cricket::kDefaultPortAllocatorFlags; 49 using cricket::kMinimumStepDelay; 50 using cricket::kDefaultStepDelay; 51 using cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG; 52 using cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET; 53 using cricket::ServerAddresses; 54 using rtc::SocketAddress; 55 56 static const int kDefaultTimeout = 1000; 57 static const int kOnlyLocalPorts = cricket::PORTALLOCATOR_DISABLE_STUN | 58 cricket::PORTALLOCATOR_DISABLE_RELAY | 59 cricket::PORTALLOCATOR_DISABLE_TCP; 60 // Addresses on the public internet. 61 static const SocketAddress kPublicAddrs[2] = 62 { SocketAddress("11.11.11.11", 0), SocketAddress("22.22.22.22", 0) }; 63 // IPv6 Addresses on the public internet. 64 static const SocketAddress kIPv6PublicAddrs[2] = { 65 SocketAddress("2400:4030:1:2c00:be30:abcd:efab:cdef", 0), 66 SocketAddress("2620:0:1000:1b03:2e41:38ff:fea6:f2a4", 0) 67 }; 68 // For configuring multihomed clients. 69 static const SocketAddress kAlternateAddrs[2] = 70 { SocketAddress("11.11.11.101", 0), SocketAddress("22.22.22.202", 0) }; 71 // Addresses for HTTP proxy servers. 72 static const SocketAddress kHttpsProxyAddrs[2] = 73 { SocketAddress("11.11.11.1", 443), SocketAddress("22.22.22.1", 443) }; 74 // Addresses for SOCKS proxy servers. 75 static const SocketAddress kSocksProxyAddrs[2] = 76 { SocketAddress("11.11.11.1", 1080), SocketAddress("22.22.22.1", 1080) }; 77 // Internal addresses for NAT boxes. 78 static const SocketAddress kNatAddrs[2] = 79 { SocketAddress("192.168.1.1", 0), SocketAddress("192.168.2.1", 0) }; 80 // Private addresses inside the NAT private networks. 81 static const SocketAddress kPrivateAddrs[2] = 82 { SocketAddress("192.168.1.11", 0), SocketAddress("192.168.2.22", 0) }; 83 // For cascaded NATs, the internal addresses of the inner NAT boxes. 84 static const SocketAddress kCascadedNatAddrs[2] = 85 { SocketAddress("192.168.10.1", 0), SocketAddress("192.168.20.1", 0) }; 86 // For cascaded NATs, private addresses inside the inner private networks. 87 static const SocketAddress kCascadedPrivateAddrs[2] = 88 { SocketAddress("192.168.10.11", 0), SocketAddress("192.168.20.22", 0) }; 89 // The address of the public STUN server. 90 static const SocketAddress kStunAddr("99.99.99.1", cricket::STUN_SERVER_PORT); 91 // The addresses for the public relay server. 92 static const SocketAddress kRelayUdpIntAddr("99.99.99.2", 5000); 93 static const SocketAddress kRelayUdpExtAddr("99.99.99.3", 5001); 94 static const SocketAddress kRelayTcpIntAddr("99.99.99.2", 5002); 95 static const SocketAddress kRelayTcpExtAddr("99.99.99.3", 5003); 96 static const SocketAddress kRelaySslTcpIntAddr("99.99.99.2", 5004); 97 static const SocketAddress kRelaySslTcpExtAddr("99.99.99.3", 5005); 98 // The addresses for the public turn server. 99 static const SocketAddress kTurnUdpIntAddr("99.99.99.4", 100 cricket::STUN_SERVER_PORT); 101 static const SocketAddress kTurnUdpExtAddr("99.99.99.5", 0); 102 static const cricket::RelayCredentials kRelayCredentials("test", "test"); 103 104 // Based on ICE_UFRAG_LENGTH 105 static const char* kIceUfrag[4] = {"TESTICEUFRAG0000", "TESTICEUFRAG0001", 106 "TESTICEUFRAG0002", "TESTICEUFRAG0003"}; 107 // Based on ICE_PWD_LENGTH 108 static const char* kIcePwd[4] = {"TESTICEPWD00000000000000", 109 "TESTICEPWD00000000000001", 110 "TESTICEPWD00000000000002", 111 "TESTICEPWD00000000000003"}; 112 113 static const uint64 kTiebreaker1 = 11111; 114 static const uint64 kTiebreaker2 = 22222; 115 116 // This test simulates 2 P2P endpoints that want to establish connectivity 117 // with each other over various network topologies and conditions, which can be 118 // specified in each individial test. 119 // A virtual network (via VirtualSocketServer) along with virtual firewalls and 120 // NATs (via Firewall/NATSocketServer) are used to simulate the various network 121 // conditions. We can configure the IP addresses of the endpoints, 122 // block various types of connectivity, or add arbitrary levels of NAT. 123 // We also run a STUN server and a relay server on the virtual network to allow 124 // our typical P2P mechanisms to do their thing. 125 // For each case, we expect the P2P stack to eventually settle on a specific 126 // form of connectivity to the other side. The test checks that the P2P 127 // negotiation successfully establishes connectivity within a certain time, 128 // and that the result is what we expect. 129 // Note that this class is a base class for use by other tests, who will provide 130 // specialized test behavior. 131 class P2PTransportChannelTestBase : public testing::Test, 132 public rtc::MessageHandler, 133 public sigslot::has_slots<> { 134 public: 135 P2PTransportChannelTestBase() 136 : main_(rtc::Thread::Current()), 137 pss_(new rtc::PhysicalSocketServer), 138 vss_(new rtc::VirtualSocketServer(pss_.get())), 139 nss_(new rtc::NATSocketServer(vss_.get())), 140 ss_(new rtc::FirewallSocketServer(nss_.get())), 141 ss_scope_(ss_.get()), 142 stun_server_(main_, kStunAddr), 143 turn_server_(main_, kTurnUdpIntAddr, kTurnUdpExtAddr), 144 relay_server_(main_, kRelayUdpIntAddr, kRelayUdpExtAddr, 145 kRelayTcpIntAddr, kRelayTcpExtAddr, 146 kRelaySslTcpIntAddr, kRelaySslTcpExtAddr), 147 socks_server1_(ss_.get(), kSocksProxyAddrs[0], 148 ss_.get(), kSocksProxyAddrs[0]), 149 socks_server2_(ss_.get(), kSocksProxyAddrs[1], 150 ss_.get(), kSocksProxyAddrs[1]), 151 clear_remote_candidates_ufrag_pwd_(false), 152 force_relay_(false) { 153 ep1_.role_ = cricket::ICEROLE_CONTROLLING; 154 ep2_.role_ = cricket::ICEROLE_CONTROLLED; 155 156 ServerAddresses stun_servers; 157 stun_servers.insert(kStunAddr); 158 ep1_.allocator_.reset(new cricket::BasicPortAllocator( 159 &ep1_.network_manager_, 160 stun_servers, kRelayUdpIntAddr, kRelayTcpIntAddr, kRelaySslTcpIntAddr)); 161 ep2_.allocator_.reset(new cricket::BasicPortAllocator( 162 &ep2_.network_manager_, 163 stun_servers, kRelayUdpIntAddr, kRelayTcpIntAddr, kRelaySslTcpIntAddr)); 164 } 165 166 protected: 167 enum Config { 168 OPEN, // Open to the Internet 169 NAT_FULL_CONE, // NAT, no filtering 170 NAT_ADDR_RESTRICTED, // NAT, must send to an addr to recv 171 NAT_PORT_RESTRICTED, // NAT, must send to an addr+port to recv 172 NAT_SYMMETRIC, // NAT, endpoint-dependent bindings 173 NAT_DOUBLE_CONE, // Double NAT, both cone 174 NAT_SYMMETRIC_THEN_CONE, // Double NAT, symmetric outer, cone inner 175 BLOCK_UDP, // Firewall, UDP in/out blocked 176 BLOCK_UDP_AND_INCOMING_TCP, // Firewall, UDP in/out and TCP in blocked 177 BLOCK_ALL_BUT_OUTGOING_HTTP, // Firewall, only TCP out on 80/443 178 PROXY_HTTPS, // All traffic through HTTPS proxy 179 PROXY_SOCKS, // All traffic through SOCKS proxy 180 NUM_CONFIGS 181 }; 182 183 struct Result { 184 Result(const std::string& lt, const std::string& lp, 185 const std::string& rt, const std::string& rp, 186 const std::string& lt2, const std::string& lp2, 187 const std::string& rt2, const std::string& rp2, int wait) 188 : local_type(lt), local_proto(lp), remote_type(rt), remote_proto(rp), 189 local_type2(lt2), local_proto2(lp2), remote_type2(rt2), 190 remote_proto2(rp2), connect_wait(wait) { 191 } 192 std::string local_type; 193 std::string local_proto; 194 std::string remote_type; 195 std::string remote_proto; 196 std::string local_type2; 197 std::string local_proto2; 198 std::string remote_type2; 199 std::string remote_proto2; 200 int connect_wait; 201 }; 202 203 struct ChannelData { 204 bool CheckData(const char* data, int len) { 205 bool ret = false; 206 if (!ch_packets_.empty()) { 207 std::string packet = ch_packets_.front(); 208 ret = (packet == std::string(data, len)); 209 ch_packets_.pop_front(); 210 } 211 return ret; 212 } 213 214 std::string name_; // TODO - Currently not used. 215 std::list<std::string> ch_packets_; 216 rtc::scoped_ptr<cricket::P2PTransportChannel> ch_; 217 }; 218 219 struct Endpoint { 220 Endpoint() : signaling_delay_(0), role_(cricket::ICEROLE_UNKNOWN), 221 tiebreaker_(0), role_conflict_(false), 222 protocol_type_(cricket::ICEPROTO_GOOGLE) {} 223 bool HasChannel(cricket::TransportChannel* ch) { 224 return (ch == cd1_.ch_.get() || ch == cd2_.ch_.get()); 225 } 226 ChannelData* GetChannelData(cricket::TransportChannel* ch) { 227 if (!HasChannel(ch)) return NULL; 228 if (cd1_.ch_.get() == ch) 229 return &cd1_; 230 else 231 return &cd2_; 232 } 233 void SetSignalingDelay(int delay) { signaling_delay_ = delay; } 234 235 void SetIceRole(cricket::IceRole role) { role_ = role; } 236 cricket::IceRole ice_role() { return role_; } 237 void SetIceProtocolType(cricket::IceProtocolType type) { 238 protocol_type_ = type; 239 } 240 cricket::IceProtocolType protocol_type() { return protocol_type_; } 241 void SetIceTiebreaker(uint64 tiebreaker) { tiebreaker_ = tiebreaker; } 242 uint64 GetIceTiebreaker() { return tiebreaker_; } 243 void OnRoleConflict(bool role_conflict) { role_conflict_ = role_conflict; } 244 bool role_conflict() { return role_conflict_; } 245 void SetAllocationStepDelay(uint32 delay) { 246 allocator_->set_step_delay(delay); 247 } 248 void SetAllowTcpListen(bool allow_tcp_listen) { 249 allocator_->set_allow_tcp_listen(allow_tcp_listen); 250 } 251 252 rtc::FakeNetworkManager network_manager_; 253 rtc::scoped_ptr<cricket::BasicPortAllocator> allocator_; 254 ChannelData cd1_; 255 ChannelData cd2_; 256 int signaling_delay_; 257 cricket::IceRole role_; 258 uint64 tiebreaker_; 259 bool role_conflict_; 260 cricket::IceProtocolType protocol_type_; 261 }; 262 263 struct CandidateData : public rtc::MessageData { 264 CandidateData(cricket::TransportChannel* ch, const cricket::Candidate& c) 265 : channel(ch), candidate(c) { 266 } 267 cricket::TransportChannel* channel; 268 cricket::Candidate candidate; 269 }; 270 271 ChannelData* GetChannelData(cricket::TransportChannel* channel) { 272 if (ep1_.HasChannel(channel)) 273 return ep1_.GetChannelData(channel); 274 else 275 return ep2_.GetChannelData(channel); 276 } 277 278 void CreateChannels(int num) { 279 std::string ice_ufrag_ep1_cd1_ch = kIceUfrag[0]; 280 std::string ice_pwd_ep1_cd1_ch = kIcePwd[0]; 281 std::string ice_ufrag_ep2_cd1_ch = kIceUfrag[1]; 282 std::string ice_pwd_ep2_cd1_ch = kIcePwd[1]; 283 ep1_.cd1_.ch_.reset(CreateChannel( 284 0, cricket::ICE_CANDIDATE_COMPONENT_DEFAULT, 285 ice_ufrag_ep1_cd1_ch, ice_pwd_ep1_cd1_ch, 286 ice_ufrag_ep2_cd1_ch, ice_pwd_ep2_cd1_ch)); 287 ep2_.cd1_.ch_.reset(CreateChannel( 288 1, cricket::ICE_CANDIDATE_COMPONENT_DEFAULT, 289 ice_ufrag_ep2_cd1_ch, ice_pwd_ep2_cd1_ch, 290 ice_ufrag_ep1_cd1_ch, ice_pwd_ep1_cd1_ch)); 291 if (num == 2) { 292 std::string ice_ufrag_ep1_cd2_ch = kIceUfrag[2]; 293 std::string ice_pwd_ep1_cd2_ch = kIcePwd[2]; 294 std::string ice_ufrag_ep2_cd2_ch = kIceUfrag[3]; 295 std::string ice_pwd_ep2_cd2_ch = kIcePwd[3]; 296 // In BUNDLE each endpoint must share common ICE credentials. 297 if (ep1_.allocator_->flags() & cricket::PORTALLOCATOR_ENABLE_BUNDLE) { 298 ice_ufrag_ep1_cd2_ch = ice_ufrag_ep1_cd1_ch; 299 ice_pwd_ep1_cd2_ch = ice_pwd_ep1_cd1_ch; 300 } 301 if (ep2_.allocator_->flags() & cricket::PORTALLOCATOR_ENABLE_BUNDLE) { 302 ice_ufrag_ep2_cd2_ch = ice_ufrag_ep2_cd1_ch; 303 ice_pwd_ep2_cd2_ch = ice_pwd_ep2_cd1_ch; 304 } 305 ep1_.cd2_.ch_.reset(CreateChannel( 306 0, cricket::ICE_CANDIDATE_COMPONENT_DEFAULT, 307 ice_ufrag_ep1_cd2_ch, ice_pwd_ep1_cd2_ch, 308 ice_ufrag_ep2_cd2_ch, ice_pwd_ep2_cd2_ch)); 309 ep2_.cd2_.ch_.reset(CreateChannel( 310 1, cricket::ICE_CANDIDATE_COMPONENT_DEFAULT, 311 ice_ufrag_ep2_cd2_ch, ice_pwd_ep2_cd2_ch, 312 ice_ufrag_ep1_cd2_ch, ice_pwd_ep1_cd2_ch)); 313 } 314 } 315 cricket::P2PTransportChannel* CreateChannel( 316 int endpoint, 317 int component, 318 const std::string& local_ice_ufrag, 319 const std::string& local_ice_pwd, 320 const std::string& remote_ice_ufrag, 321 const std::string& remote_ice_pwd) { 322 cricket::P2PTransportChannel* channel = new cricket::P2PTransportChannel( 323 "test content name", component, NULL, GetAllocator(endpoint)); 324 channel->SignalRequestSignaling.connect( 325 this, &P2PTransportChannelTestBase::OnChannelRequestSignaling); 326 channel->SignalCandidateReady.connect(this, 327 &P2PTransportChannelTestBase::OnCandidate); 328 channel->SignalReadPacket.connect( 329 this, &P2PTransportChannelTestBase::OnReadPacket); 330 channel->SignalRoleConflict.connect( 331 this, &P2PTransportChannelTestBase::OnRoleConflict); 332 channel->SetIceProtocolType(GetEndpoint(endpoint)->protocol_type()); 333 channel->SetIceCredentials(local_ice_ufrag, local_ice_pwd); 334 if (clear_remote_candidates_ufrag_pwd_) { 335 // This only needs to be set if we're clearing them from the 336 // candidates. Some unit tests rely on this not being set. 337 channel->SetRemoteIceCredentials(remote_ice_ufrag, remote_ice_pwd); 338 } 339 channel->SetIceRole(GetEndpoint(endpoint)->ice_role()); 340 channel->SetIceTiebreaker(GetEndpoint(endpoint)->GetIceTiebreaker()); 341 channel->Connect(); 342 return channel; 343 } 344 void DestroyChannels() { 345 ep1_.cd1_.ch_.reset(); 346 ep2_.cd1_.ch_.reset(); 347 ep1_.cd2_.ch_.reset(); 348 ep2_.cd2_.ch_.reset(); 349 } 350 cricket::P2PTransportChannel* ep1_ch1() { return ep1_.cd1_.ch_.get(); } 351 cricket::P2PTransportChannel* ep1_ch2() { return ep1_.cd2_.ch_.get(); } 352 cricket::P2PTransportChannel* ep2_ch1() { return ep2_.cd1_.ch_.get(); } 353 cricket::P2PTransportChannel* ep2_ch2() { return ep2_.cd2_.ch_.get(); } 354 355 // Common results. 356 static const Result kLocalUdpToLocalUdp; 357 static const Result kLocalUdpToStunUdp; 358 static const Result kLocalUdpToPrflxUdp; 359 static const Result kPrflxUdpToLocalUdp; 360 static const Result kStunUdpToLocalUdp; 361 static const Result kStunUdpToStunUdp; 362 static const Result kPrflxUdpToStunUdp; 363 static const Result kLocalUdpToRelayUdp; 364 static const Result kPrflxUdpToRelayUdp; 365 static const Result kLocalTcpToLocalTcp; 366 static const Result kLocalTcpToPrflxTcp; 367 static const Result kPrflxTcpToLocalTcp; 368 369 static void SetUpTestCase() { 370 rtc::InitializeSSL(); 371 } 372 373 static void TearDownTestCase() { 374 rtc::CleanupSSL(); 375 } 376 377 rtc::NATSocketServer* nat() { return nss_.get(); } 378 rtc::FirewallSocketServer* fw() { return ss_.get(); } 379 380 Endpoint* GetEndpoint(int endpoint) { 381 if (endpoint == 0) { 382 return &ep1_; 383 } else if (endpoint == 1) { 384 return &ep2_; 385 } else { 386 return NULL; 387 } 388 } 389 cricket::PortAllocator* GetAllocator(int endpoint) { 390 return GetEndpoint(endpoint)->allocator_.get(); 391 } 392 void AddAddress(int endpoint, const SocketAddress& addr) { 393 GetEndpoint(endpoint)->network_manager_.AddInterface(addr); 394 } 395 void RemoveAddress(int endpoint, const SocketAddress& addr) { 396 GetEndpoint(endpoint)->network_manager_.RemoveInterface(addr); 397 } 398 void SetProxy(int endpoint, rtc::ProxyType type) { 399 rtc::ProxyInfo info; 400 info.type = type; 401 info.address = (type == rtc::PROXY_HTTPS) ? 402 kHttpsProxyAddrs[endpoint] : kSocksProxyAddrs[endpoint]; 403 GetAllocator(endpoint)->set_proxy("unittest/1.0", info); 404 } 405 void SetAllocatorFlags(int endpoint, int flags) { 406 GetAllocator(endpoint)->set_flags(flags); 407 } 408 void SetSignalingDelay(int endpoint, int delay) { 409 GetEndpoint(endpoint)->SetSignalingDelay(delay); 410 } 411 void SetIceProtocol(int endpoint, cricket::IceProtocolType type) { 412 GetEndpoint(endpoint)->SetIceProtocolType(type); 413 } 414 void SetIceRole(int endpoint, cricket::IceRole role) { 415 GetEndpoint(endpoint)->SetIceRole(role); 416 } 417 void SetIceTiebreaker(int endpoint, uint64 tiebreaker) { 418 GetEndpoint(endpoint)->SetIceTiebreaker(tiebreaker); 419 } 420 bool GetRoleConflict(int endpoint) { 421 return GetEndpoint(endpoint)->role_conflict(); 422 } 423 void SetAllocationStepDelay(int endpoint, uint32 delay) { 424 return GetEndpoint(endpoint)->SetAllocationStepDelay(delay); 425 } 426 void SetAllowTcpListen(int endpoint, bool allow_tcp_listen) { 427 return GetEndpoint(endpoint)->SetAllowTcpListen(allow_tcp_listen); 428 } 429 430 void Test(const Result& expected) { 431 int32 connect_start = rtc::Time(), connect_time; 432 433 // Create the channels and wait for them to connect. 434 CreateChannels(1); 435 EXPECT_TRUE_WAIT_MARGIN(ep1_ch1() != NULL && 436 ep2_ch1() != NULL && 437 ep1_ch1()->readable() && 438 ep1_ch1()->writable() && 439 ep2_ch1()->readable() && 440 ep2_ch1()->writable(), 441 expected.connect_wait, 442 1000); 443 connect_time = rtc::TimeSince(connect_start); 444 if (connect_time < expected.connect_wait) { 445 LOG(LS_INFO) << "Connect time: " << connect_time << " ms"; 446 } else { 447 LOG(LS_INFO) << "Connect time: " << "TIMEOUT (" 448 << expected.connect_wait << " ms)"; 449 } 450 451 // Allow a few turns of the crank for the best connections to emerge. 452 // This may take up to 2 seconds. 453 if (ep1_ch1()->best_connection() && 454 ep2_ch1()->best_connection()) { 455 int32 converge_start = rtc::Time(), converge_time; 456 int converge_wait = 2000; 457 EXPECT_TRUE_WAIT_MARGIN( 458 LocalCandidate(ep1_ch1())->type() == expected.local_type && 459 LocalCandidate(ep1_ch1())->protocol() == expected.local_proto && 460 RemoteCandidate(ep1_ch1())->type() == expected.remote_type && 461 RemoteCandidate(ep1_ch1())->protocol() == expected.remote_proto, 462 converge_wait, 463 converge_wait); 464 465 // Also do EXPECT_EQ on each part so that failures are more verbose. 466 EXPECT_EQ(expected.local_type, LocalCandidate(ep1_ch1())->type()); 467 EXPECT_EQ(expected.local_proto, LocalCandidate(ep1_ch1())->protocol()); 468 EXPECT_EQ(expected.remote_type, RemoteCandidate(ep1_ch1())->type()); 469 EXPECT_EQ(expected.remote_proto, RemoteCandidate(ep1_ch1())->protocol()); 470 471 // Verifying remote channel best connection information. This is done 472 // only for the RFC 5245 as controlled agent will use USE-CANDIDATE 473 // from controlling (ep1) agent. We can easily predict from EP1 result 474 // matrix. 475 if (ep2_.protocol_type_ == cricket::ICEPROTO_RFC5245) { 476 // Checking for best connection candidates information at remote. 477 EXPECT_TRUE_WAIT( 478 LocalCandidate(ep2_ch1())->type() == expected.local_type2 && 479 LocalCandidate(ep2_ch1())->protocol() == expected.local_proto2 && 480 RemoteCandidate(ep2_ch1())->protocol() == expected.remote_proto2, 481 kDefaultTimeout); 482 483 // For verbose 484 EXPECT_EQ(expected.local_type2, LocalCandidate(ep2_ch1())->type()); 485 EXPECT_EQ(expected.local_proto2, LocalCandidate(ep2_ch1())->protocol()); 486 EXPECT_EQ(expected.remote_proto2, 487 RemoteCandidate(ep2_ch1())->protocol()); 488 // Removed remote_type comparision aginst best connection remote 489 // candidate. This is done to handle remote type discrepancy from 490 // local to stun based on the test type. 491 // For example in case of Open -> NAT, ep2 channels will have LULU 492 // and in other cases like NAT -> NAT it will be LUSU. To avoid these 493 // mismatches and we are doing comparision in different way. 494 // i.e. when don't match its remote type is either local or stun. 495 // TODO(ronghuawu): Refine the test criteria. 496 // https://code.google.com/p/webrtc/issues/detail?id=1953 497 if (expected.remote_type2 != RemoteCandidate(ep2_ch1())->type()) { 498 EXPECT_TRUE(expected.remote_type2 == cricket::LOCAL_PORT_TYPE || 499 expected.remote_type2 == cricket::STUN_PORT_TYPE); 500 EXPECT_TRUE( 501 RemoteCandidate(ep2_ch1())->type() == cricket::LOCAL_PORT_TYPE || 502 RemoteCandidate(ep2_ch1())->type() == cricket::STUN_PORT_TYPE || 503 RemoteCandidate(ep2_ch1())->type() == cricket::PRFLX_PORT_TYPE); 504 } 505 } 506 507 converge_time = rtc::TimeSince(converge_start); 508 if (converge_time < converge_wait) { 509 LOG(LS_INFO) << "Converge time: " << converge_time << " ms"; 510 } else { 511 LOG(LS_INFO) << "Converge time: " << "TIMEOUT (" 512 << converge_wait << " ms)"; 513 } 514 } 515 // Try sending some data to other end. 516 TestSendRecv(1); 517 518 // Destroy the channels, and wait for them to be fully cleaned up. 519 DestroyChannels(); 520 } 521 522 void TestSendRecv(int channels) { 523 for (int i = 0; i < 10; ++i) { 524 const char* data = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"; 525 int len = static_cast<int>(strlen(data)); 526 // local_channel1 <==> remote_channel1 527 EXPECT_EQ_WAIT(len, SendData(ep1_ch1(), data, len), 1000); 528 EXPECT_TRUE_WAIT(CheckDataOnChannel(ep2_ch1(), data, len), 1000); 529 EXPECT_EQ_WAIT(len, SendData(ep2_ch1(), data, len), 1000); 530 EXPECT_TRUE_WAIT(CheckDataOnChannel(ep1_ch1(), data, len), 1000); 531 if (channels == 2 && ep1_ch2() && ep2_ch2()) { 532 // local_channel2 <==> remote_channel2 533 EXPECT_EQ_WAIT(len, SendData(ep1_ch2(), data, len), 1000); 534 EXPECT_TRUE_WAIT(CheckDataOnChannel(ep2_ch2(), data, len), 1000); 535 EXPECT_EQ_WAIT(len, SendData(ep2_ch2(), data, len), 1000); 536 EXPECT_TRUE_WAIT(CheckDataOnChannel(ep1_ch2(), data, len), 1000); 537 } 538 } 539 } 540 541 // This test waits for the transport to become readable and writable on both 542 // end points. Once they are, the end points set new local ice credentials to 543 // restart the ice gathering. Finally it waits for the transport to select a 544 // new connection using the newly generated ice candidates. 545 // Before calling this function the end points must be configured. 546 void TestHandleIceUfragPasswordChanged() { 547 ep1_ch1()->SetRemoteIceCredentials(kIceUfrag[1], kIcePwd[1]); 548 ep2_ch1()->SetRemoteIceCredentials(kIceUfrag[0], kIcePwd[0]); 549 EXPECT_TRUE_WAIT_MARGIN(ep1_ch1()->readable() && ep1_ch1()->writable() && 550 ep2_ch1()->readable() && ep2_ch1()->writable(), 551 1000, 1000); 552 553 const cricket::Candidate* old_local_candidate1 = LocalCandidate(ep1_ch1()); 554 const cricket::Candidate* old_local_candidate2 = LocalCandidate(ep2_ch1()); 555 const cricket::Candidate* old_remote_candidate1 = 556 RemoteCandidate(ep1_ch1()); 557 const cricket::Candidate* old_remote_candidate2 = 558 RemoteCandidate(ep2_ch1()); 559 560 ep1_ch1()->SetIceCredentials(kIceUfrag[2], kIcePwd[2]); 561 ep1_ch1()->SetRemoteIceCredentials(kIceUfrag[3], kIcePwd[3]); 562 ep2_ch1()->SetIceCredentials(kIceUfrag[3], kIcePwd[3]); 563 ep2_ch1()->SetRemoteIceCredentials(kIceUfrag[2], kIcePwd[2]); 564 565 EXPECT_TRUE_WAIT_MARGIN(LocalCandidate(ep1_ch1())->generation() != 566 old_local_candidate1->generation(), 567 1000, 1000); 568 EXPECT_TRUE_WAIT_MARGIN(LocalCandidate(ep2_ch1())->generation() != 569 old_local_candidate2->generation(), 570 1000, 1000); 571 EXPECT_TRUE_WAIT_MARGIN(RemoteCandidate(ep1_ch1())->generation() != 572 old_remote_candidate1->generation(), 573 1000, 1000); 574 EXPECT_TRUE_WAIT_MARGIN(RemoteCandidate(ep2_ch1())->generation() != 575 old_remote_candidate2->generation(), 576 1000, 1000); 577 EXPECT_EQ(1u, RemoteCandidate(ep2_ch1())->generation()); 578 EXPECT_EQ(1u, RemoteCandidate(ep1_ch1())->generation()); 579 } 580 581 void TestSignalRoleConflict() { 582 SetIceProtocol(0, cricket::ICEPROTO_RFC5245); 583 SetIceTiebreaker(0, kTiebreaker1); // Default EP1 is in controlling state. 584 585 SetIceProtocol(1, cricket::ICEPROTO_RFC5245); 586 SetIceRole(1, cricket::ICEROLE_CONTROLLING); 587 SetIceTiebreaker(1, kTiebreaker2); 588 589 // Creating channels with both channels role set to CONTROLLING. 590 CreateChannels(1); 591 // Since both the channels initiated with controlling state and channel2 592 // has higher tiebreaker value, channel1 should receive SignalRoleConflict. 593 EXPECT_TRUE_WAIT(GetRoleConflict(0), 1000); 594 EXPECT_FALSE(GetRoleConflict(1)); 595 596 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && 597 ep1_ch1()->writable() && 598 ep2_ch1()->readable() && 599 ep2_ch1()->writable(), 600 1000); 601 602 EXPECT_TRUE(ep1_ch1()->best_connection() && 603 ep2_ch1()->best_connection()); 604 605 TestSendRecv(1); 606 } 607 608 void TestHybridConnectivity(cricket::IceProtocolType proto) { 609 AddAddress(0, kPublicAddrs[0]); 610 AddAddress(1, kPublicAddrs[1]); 611 612 SetAllocationStepDelay(0, kMinimumStepDelay); 613 SetAllocationStepDelay(1, kMinimumStepDelay); 614 615 SetIceRole(0, cricket::ICEROLE_CONTROLLING); 616 SetIceProtocol(0, cricket::ICEPROTO_HYBRID); 617 SetIceTiebreaker(0, kTiebreaker1); 618 SetIceRole(1, cricket::ICEROLE_CONTROLLED); 619 SetIceProtocol(1, proto); 620 SetIceTiebreaker(1, kTiebreaker2); 621 622 CreateChannels(1); 623 // When channel is in hybrid and it's controlling agent, channel will 624 // receive ping request from the remote. Hence connection is readable. 625 // Since channel is in hybrid, it will not send any pings, so no writable 626 // connection. Since channel2 is in controlled state, it will not have 627 // any connections which are readable or writable, as it didn't received 628 // pings (or none) with USE-CANDIDATE attribute. 629 EXPECT_TRUE_WAIT(ep1_ch1()->readable(), 1000); 630 631 // Set real protocol type. 632 ep1_ch1()->SetIceProtocolType(proto); 633 634 // Channel should able to send ping requests and connections become writable 635 // in both directions. 636 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && ep1_ch1()->writable() && 637 ep2_ch1()->readable() && ep2_ch1()->writable(), 638 1000); 639 EXPECT_TRUE( 640 ep1_ch1()->best_connection() && ep2_ch1()->best_connection() && 641 LocalCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[0]) && 642 RemoteCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[1])); 643 644 TestSendRecv(1); 645 DestroyChannels(); 646 } 647 648 void OnChannelRequestSignaling(cricket::TransportChannelImpl* channel) { 649 channel->OnSignalingReady(); 650 } 651 // We pass the candidates directly to the other side. 652 void OnCandidate(cricket::TransportChannelImpl* ch, 653 const cricket::Candidate& c) { 654 if (force_relay_ && c.type() != cricket::RELAY_PORT_TYPE) 655 return; 656 657 main_->PostDelayed(GetEndpoint(ch)->signaling_delay_, this, 0, 658 new CandidateData(ch, c)); 659 } 660 void OnMessage(rtc::Message* msg) { 661 rtc::scoped_ptr<CandidateData> data( 662 static_cast<CandidateData*>(msg->pdata)); 663 cricket::P2PTransportChannel* rch = GetRemoteChannel(data->channel); 664 cricket::Candidate c = data->candidate; 665 if (clear_remote_candidates_ufrag_pwd_) { 666 c.set_username(""); 667 c.set_password(""); 668 } 669 LOG(LS_INFO) << "Candidate(" << data->channel->component() << "->" 670 << rch->component() << "): " << c.type() << ", " << c.protocol() 671 << ", " << c.address().ToString() << ", " << c.username() 672 << ", " << c.generation(); 673 rch->OnCandidate(c); 674 } 675 void OnReadPacket(cricket::TransportChannel* channel, const char* data, 676 size_t len, const rtc::PacketTime& packet_time, 677 int flags) { 678 std::list<std::string>& packets = GetPacketList(channel); 679 packets.push_front(std::string(data, len)); 680 } 681 void OnRoleConflict(cricket::TransportChannelImpl* channel) { 682 GetEndpoint(channel)->OnRoleConflict(true); 683 cricket::IceRole new_role = 684 GetEndpoint(channel)->ice_role() == cricket::ICEROLE_CONTROLLING ? 685 cricket::ICEROLE_CONTROLLED : cricket::ICEROLE_CONTROLLING; 686 channel->SetIceRole(new_role); 687 } 688 int SendData(cricket::TransportChannel* channel, 689 const char* data, size_t len) { 690 rtc::PacketOptions options; 691 return channel->SendPacket(data, len, options, 0); 692 } 693 bool CheckDataOnChannel(cricket::TransportChannel* channel, 694 const char* data, int len) { 695 return GetChannelData(channel)->CheckData(data, len); 696 } 697 static const cricket::Candidate* LocalCandidate( 698 cricket::P2PTransportChannel* ch) { 699 return (ch && ch->best_connection()) ? 700 &ch->best_connection()->local_candidate() : NULL; 701 } 702 static const cricket::Candidate* RemoteCandidate( 703 cricket::P2PTransportChannel* ch) { 704 return (ch && ch->best_connection()) ? 705 &ch->best_connection()->remote_candidate() : NULL; 706 } 707 Endpoint* GetEndpoint(cricket::TransportChannel* ch) { 708 if (ep1_.HasChannel(ch)) { 709 return &ep1_; 710 } else if (ep2_.HasChannel(ch)) { 711 return &ep2_; 712 } else { 713 return NULL; 714 } 715 } 716 cricket::P2PTransportChannel* GetRemoteChannel( 717 cricket::TransportChannel* ch) { 718 if (ch == ep1_ch1()) 719 return ep2_ch1(); 720 else if (ch == ep1_ch2()) 721 return ep2_ch2(); 722 else if (ch == ep2_ch1()) 723 return ep1_ch1(); 724 else if (ch == ep2_ch2()) 725 return ep1_ch2(); 726 else 727 return NULL; 728 } 729 std::list<std::string>& GetPacketList(cricket::TransportChannel* ch) { 730 return GetChannelData(ch)->ch_packets_; 731 } 732 733 void set_clear_remote_candidates_ufrag_pwd(bool clear) { 734 clear_remote_candidates_ufrag_pwd_ = clear; 735 } 736 737 void set_force_relay(bool relay) { 738 force_relay_ = relay; 739 } 740 741 private: 742 rtc::Thread* main_; 743 rtc::scoped_ptr<rtc::PhysicalSocketServer> pss_; 744 rtc::scoped_ptr<rtc::VirtualSocketServer> vss_; 745 rtc::scoped_ptr<rtc::NATSocketServer> nss_; 746 rtc::scoped_ptr<rtc::FirewallSocketServer> ss_; 747 rtc::SocketServerScope ss_scope_; 748 cricket::TestStunServer stun_server_; 749 cricket::TestTurnServer turn_server_; 750 cricket::TestRelayServer relay_server_; 751 rtc::SocksProxyServer socks_server1_; 752 rtc::SocksProxyServer socks_server2_; 753 Endpoint ep1_; 754 Endpoint ep2_; 755 bool clear_remote_candidates_ufrag_pwd_; 756 bool force_relay_; 757 }; 758 759 // The tests have only a few outcomes, which we predefine. 760 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 761 kLocalUdpToLocalUdp("local", "udp", "local", "udp", 762 "local", "udp", "local", "udp", 1000); 763 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 764 kLocalUdpToStunUdp("local", "udp", "stun", "udp", 765 "local", "udp", "stun", "udp", 1000); 766 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 767 kLocalUdpToPrflxUdp("local", "udp", "prflx", "udp", 768 "prflx", "udp", "local", "udp", 1000); 769 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 770 kPrflxUdpToLocalUdp("prflx", "udp", "local", "udp", 771 "local", "udp", "prflx", "udp", 1000); 772 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 773 kStunUdpToLocalUdp("stun", "udp", "local", "udp", 774 "local", "udp", "stun", "udp", 1000); 775 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 776 kStunUdpToStunUdp("stun", "udp", "stun", "udp", 777 "stun", "udp", "stun", "udp", 1000); 778 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 779 kPrflxUdpToStunUdp("prflx", "udp", "stun", "udp", 780 "local", "udp", "prflx", "udp", 1000); 781 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 782 kLocalUdpToRelayUdp("local", "udp", "relay", "udp", 783 "relay", "udp", "local", "udp", 2000); 784 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 785 kPrflxUdpToRelayUdp("prflx", "udp", "relay", "udp", 786 "relay", "udp", "prflx", "udp", 2000); 787 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 788 kLocalTcpToLocalTcp("local", "tcp", "local", "tcp", 789 "local", "tcp", "local", "tcp", 3000); 790 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 791 kLocalTcpToPrflxTcp("local", "tcp", "prflx", "tcp", 792 "prflx", "tcp", "local", "tcp", 3000); 793 const P2PTransportChannelTestBase::Result P2PTransportChannelTestBase:: 794 kPrflxTcpToLocalTcp("prflx", "tcp", "local", "tcp", 795 "local", "tcp", "prflx", "tcp", 3000); 796 797 // Test the matrix of all the connectivity types we expect to see in the wild. 798 // Just test every combination of the configs in the Config enum. 799 class P2PTransportChannelTest : public P2PTransportChannelTestBase { 800 protected: 801 static const Result* kMatrix[NUM_CONFIGS][NUM_CONFIGS]; 802 static const Result* kMatrixSharedUfrag[NUM_CONFIGS][NUM_CONFIGS]; 803 static const Result* kMatrixSharedSocketAsGice[NUM_CONFIGS][NUM_CONFIGS]; 804 static const Result* kMatrixSharedSocketAsIce[NUM_CONFIGS][NUM_CONFIGS]; 805 void ConfigureEndpoints(Config config1, Config config2, 806 int allocator_flags1, int allocator_flags2, 807 int delay1, int delay2, 808 cricket::IceProtocolType type) { 809 // Ideally we want to use TURN server for both GICE and ICE, but in case 810 // of GICE, TURN server usage is not producing results reliabally. 811 // TODO(mallinath): Remove Relay and use TURN server for all tests. 812 ServerAddresses stun_servers; 813 stun_servers.insert(kStunAddr); 814 GetEndpoint(0)->allocator_.reset( 815 new cricket::BasicPortAllocator(&(GetEndpoint(0)->network_manager_), 816 stun_servers, 817 rtc::SocketAddress(), rtc::SocketAddress(), 818 rtc::SocketAddress())); 819 GetEndpoint(1)->allocator_.reset( 820 new cricket::BasicPortAllocator(&(GetEndpoint(1)->network_manager_), 821 stun_servers, 822 rtc::SocketAddress(), rtc::SocketAddress(), 823 rtc::SocketAddress())); 824 825 cricket::RelayServerConfig relay_server(cricket::RELAY_GTURN); 826 if (type == cricket::ICEPROTO_RFC5245) { 827 relay_server.type = cricket::RELAY_TURN; 828 relay_server.credentials = kRelayCredentials; 829 relay_server.ports.push_back(cricket::ProtocolAddress( 830 kTurnUdpIntAddr, cricket::PROTO_UDP, false)); 831 } else { 832 relay_server.ports.push_back(cricket::ProtocolAddress( 833 kRelayUdpIntAddr, cricket::PROTO_UDP, false)); 834 relay_server.ports.push_back(cricket::ProtocolAddress( 835 kRelayTcpIntAddr, cricket::PROTO_TCP, false)); 836 relay_server.ports.push_back(cricket::ProtocolAddress( 837 kRelaySslTcpIntAddr, cricket::PROTO_SSLTCP, false)); 838 } 839 GetEndpoint(0)->allocator_->AddRelay(relay_server); 840 GetEndpoint(1)->allocator_->AddRelay(relay_server); 841 842 ConfigureEndpoint(0, config1); 843 SetIceProtocol(0, type); 844 SetAllocatorFlags(0, allocator_flags1); 845 SetAllocationStepDelay(0, delay1); 846 ConfigureEndpoint(1, config2); 847 SetIceProtocol(1, type); 848 SetAllocatorFlags(1, allocator_flags2); 849 SetAllocationStepDelay(1, delay2); 850 } 851 void ConfigureEndpoint(int endpoint, Config config) { 852 switch (config) { 853 case OPEN: 854 AddAddress(endpoint, kPublicAddrs[endpoint]); 855 break; 856 case NAT_FULL_CONE: 857 case NAT_ADDR_RESTRICTED: 858 case NAT_PORT_RESTRICTED: 859 case NAT_SYMMETRIC: 860 AddAddress(endpoint, kPrivateAddrs[endpoint]); 861 // Add a single NAT of the desired type 862 nat()->AddTranslator(kPublicAddrs[endpoint], kNatAddrs[endpoint], 863 static_cast<rtc::NATType>(config - NAT_FULL_CONE))-> 864 AddClient(kPrivateAddrs[endpoint]); 865 break; 866 case NAT_DOUBLE_CONE: 867 case NAT_SYMMETRIC_THEN_CONE: 868 AddAddress(endpoint, kCascadedPrivateAddrs[endpoint]); 869 // Add a two cascaded NATs of the desired types 870 nat()->AddTranslator(kPublicAddrs[endpoint], kNatAddrs[endpoint], 871 (config == NAT_DOUBLE_CONE) ? 872 rtc::NAT_OPEN_CONE : rtc::NAT_SYMMETRIC)-> 873 AddTranslator(kPrivateAddrs[endpoint], kCascadedNatAddrs[endpoint], 874 rtc::NAT_OPEN_CONE)-> 875 AddClient(kCascadedPrivateAddrs[endpoint]); 876 break; 877 case BLOCK_UDP: 878 case BLOCK_UDP_AND_INCOMING_TCP: 879 case BLOCK_ALL_BUT_OUTGOING_HTTP: 880 case PROXY_HTTPS: 881 case PROXY_SOCKS: 882 AddAddress(endpoint, kPublicAddrs[endpoint]); 883 // Block all UDP 884 fw()->AddRule(false, rtc::FP_UDP, rtc::FD_ANY, 885 kPublicAddrs[endpoint]); 886 if (config == BLOCK_UDP_AND_INCOMING_TCP) { 887 // Block TCP inbound to the endpoint 888 fw()->AddRule(false, rtc::FP_TCP, SocketAddress(), 889 kPublicAddrs[endpoint]); 890 } else if (config == BLOCK_ALL_BUT_OUTGOING_HTTP) { 891 // Block all TCP to/from the endpoint except 80/443 out 892 fw()->AddRule(true, rtc::FP_TCP, kPublicAddrs[endpoint], 893 SocketAddress(rtc::IPAddress(INADDR_ANY), 80)); 894 fw()->AddRule(true, rtc::FP_TCP, kPublicAddrs[endpoint], 895 SocketAddress(rtc::IPAddress(INADDR_ANY), 443)); 896 fw()->AddRule(false, rtc::FP_TCP, rtc::FD_ANY, 897 kPublicAddrs[endpoint]); 898 } else if (config == PROXY_HTTPS) { 899 // Block all TCP to/from the endpoint except to the proxy server 900 fw()->AddRule(true, rtc::FP_TCP, kPublicAddrs[endpoint], 901 kHttpsProxyAddrs[endpoint]); 902 fw()->AddRule(false, rtc::FP_TCP, rtc::FD_ANY, 903 kPublicAddrs[endpoint]); 904 SetProxy(endpoint, rtc::PROXY_HTTPS); 905 } else if (config == PROXY_SOCKS) { 906 // Block all TCP to/from the endpoint except to the proxy server 907 fw()->AddRule(true, rtc::FP_TCP, kPublicAddrs[endpoint], 908 kSocksProxyAddrs[endpoint]); 909 fw()->AddRule(false, rtc::FP_TCP, rtc::FD_ANY, 910 kPublicAddrs[endpoint]); 911 SetProxy(endpoint, rtc::PROXY_SOCKS5); 912 } 913 break; 914 default: 915 break; 916 } 917 } 918 }; 919 920 // Shorthands for use in the test matrix. 921 #define LULU &kLocalUdpToLocalUdp 922 #define LUSU &kLocalUdpToStunUdp 923 #define LUPU &kLocalUdpToPrflxUdp 924 #define PULU &kPrflxUdpToLocalUdp 925 #define SULU &kStunUdpToLocalUdp 926 #define SUSU &kStunUdpToStunUdp 927 #define PUSU &kPrflxUdpToStunUdp 928 #define LURU &kLocalUdpToRelayUdp 929 #define PURU &kPrflxUdpToRelayUdp 930 #define LTLT &kLocalTcpToLocalTcp 931 #define LTPT &kLocalTcpToPrflxTcp 932 #define PTLT &kPrflxTcpToLocalTcp 933 // TODO: Enable these once TestRelayServer can accept external TCP. 934 #define LTRT NULL 935 #define LSRS NULL 936 937 // Test matrix. Originator behavior defined by rows, receiever by columns. 938 939 // Currently the p2ptransportchannel.cc (specifically the 940 // P2PTransportChannel::OnUnknownAddress) operates in 2 modes depend on the 941 // remote candidates - ufrag per port or shared ufrag. 942 // For example, if the remote candidates have the shared ufrag, for the unknown 943 // address reaches the OnUnknownAddress, we will try to find the matched 944 // remote candidate based on the address and protocol, if not found, a new 945 // remote candidate will be created for this address. But if the remote 946 // candidates have different ufrags, we will try to find the matched remote 947 // candidate by comparing the ufrag. If not found, an error will be returned. 948 // Because currently the shared ufrag feature is under the experiment and will 949 // be rolled out gradually. We want to test the different combinations of peers 950 // with/without the shared ufrag enabled. And those different combinations have 951 // different expectation of the best connection. For example in the OpenToCONE 952 // case, an unknown address will be updated to a "host" remote candidate if the 953 // remote peer uses different ufrag per port. But in the shared ufrag case, 954 // a "stun" (should be peer-reflexive eventually) candidate will be created for 955 // that. So the expected best candidate will be LUSU instead of LULU. 956 // With all these, we have to keep 2 test matrixes for the tests: 957 // kMatrix - for the tests that the remote peer uses different ufrag per port. 958 // kMatrixSharedUfrag - for the tests that remote peer uses shared ufrag. 959 // The different between the two matrixes are on: 960 // OPToCONE, OPTo2CON, 961 // COToCONE, COToADDR, COToPORT, COToSYMM, COTo2CON, COToSCON, 962 // ADToCONE, ADToADDR, ADTo2CON, 963 // POToADDR, 964 // SYToADDR, 965 // 2CToCONE, 2CToADDR, 2CToPORT, 2CToSYMM, 2CTo2CON, 2CToSCON, 966 // SCToADDR, 967 968 // TODO: Fix NULLs caused by lack of TCP support in NATSocket. 969 // TODO: Fix NULLs caused by no HTTP proxy support. 970 // TODO: Rearrange rows/columns from best to worst. 971 // TODO(ronghuawu): Keep only one test matrix once the shared ufrag is enabled. 972 const P2PTransportChannelTest::Result* 973 P2PTransportChannelTest::kMatrix[NUM_CONFIGS][NUM_CONFIGS] = { 974 // OPEN CONE ADDR PORT SYMM 2CON SCON !UDP !TCP HTTP PRXH PRXS 975 /*OP*/ {LULU, LULU, LULU, LULU, LULU, LULU, LULU, LTLT, LTLT, LSRS, NULL, LTLT}, 976 /*CO*/ {LULU, LULU, LULU, SULU, SULU, LULU, SULU, NULL, NULL, LSRS, NULL, LTRT}, 977 /*AD*/ {LULU, LULU, LULU, SUSU, SUSU, LULU, SUSU, NULL, NULL, LSRS, NULL, LTRT}, 978 /*PO*/ {LULU, LUSU, LUSU, SUSU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 979 /*SY*/ {LULU, LUSU, LUSU, LURU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 980 /*2C*/ {LULU, LULU, LULU, SULU, SULU, LULU, SULU, NULL, NULL, LSRS, NULL, LTRT}, 981 /*SC*/ {LULU, LUSU, LUSU, LURU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 982 /*!U*/ {LTLT, NULL, NULL, NULL, NULL, NULL, NULL, LTLT, LTLT, LSRS, NULL, LTRT}, 983 /*!T*/ {LTRT, NULL, NULL, NULL, NULL, NULL, NULL, LTLT, LTRT, LSRS, NULL, LTRT}, 984 /*HT*/ {LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, NULL, LSRS}, 985 /*PR*/ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}, 986 /*PR*/ {LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LSRS, NULL, LTRT}, 987 }; 988 const P2PTransportChannelTest::Result* 989 P2PTransportChannelTest::kMatrixSharedUfrag[NUM_CONFIGS][NUM_CONFIGS] = { 990 // OPEN CONE ADDR PORT SYMM 2CON SCON !UDP !TCP HTTP PRXH PRXS 991 /*OP*/ {LULU, LUSU, LULU, LULU, LULU, LUSU, LULU, LTLT, LTLT, LSRS, NULL, LTLT}, 992 /*CO*/ {LULU, LUSU, LUSU, SUSU, SUSU, LUSU, SUSU, NULL, NULL, LSRS, NULL, LTRT}, 993 /*AD*/ {LULU, LUSU, LUSU, SUSU, SUSU, LUSU, SUSU, NULL, NULL, LSRS, NULL, LTRT}, 994 /*PO*/ {LULU, LUSU, LUSU, SUSU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 995 /*SY*/ {LULU, LUSU, LUSU, LURU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 996 /*2C*/ {LULU, LUSU, LUSU, SUSU, SUSU, LUSU, SUSU, NULL, NULL, LSRS, NULL, LTRT}, 997 /*SC*/ {LULU, LUSU, LUSU, LURU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 998 /*!U*/ {LTLT, NULL, NULL, NULL, NULL, NULL, NULL, LTLT, LTLT, LSRS, NULL, LTRT}, 999 /*!T*/ {LTRT, NULL, NULL, NULL, NULL, NULL, NULL, LTLT, LTRT, LSRS, NULL, LTRT}, 1000 /*HT*/ {LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, NULL, LSRS}, 1001 /*PR*/ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}, 1002 /*PR*/ {LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LSRS, NULL, LTRT}, 1003 }; 1004 const P2PTransportChannelTest::Result* 1005 P2PTransportChannelTest::kMatrixSharedSocketAsGice 1006 [NUM_CONFIGS][NUM_CONFIGS] = { 1007 // OPEN CONE ADDR PORT SYMM 2CON SCON !UDP !TCP HTTP PRXH PRXS 1008 /*OP*/ {LULU, LUSU, LUSU, LUSU, LUSU, LUSU, LUSU, LTLT, LTLT, LSRS, NULL, LTLT}, 1009 /*CO*/ {LULU, LUSU, LUSU, LUSU, LUSU, LUSU, LUSU, NULL, NULL, LSRS, NULL, LTRT}, 1010 /*AD*/ {LULU, LUSU, LUSU, LUSU, LUSU, LUSU, LUSU, NULL, NULL, LSRS, NULL, LTRT}, 1011 /*PO*/ {LULU, LUSU, LUSU, LUSU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 1012 /*SY*/ {LULU, LUSU, LUSU, LURU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 1013 /*2C*/ {LULU, LUSU, LUSU, LUSU, LUSU, LUSU, LUSU, NULL, NULL, LSRS, NULL, LTRT}, 1014 /*SC*/ {LULU, LUSU, LUSU, LURU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 1015 /*!U*/ {LTLT, NULL, NULL, NULL, NULL, NULL, NULL, LTLT, LTLT, LSRS, NULL, LTRT}, 1016 /*!T*/ {LTRT, NULL, NULL, NULL, NULL, NULL, NULL, LTLT, LTRT, LSRS, NULL, LTRT}, 1017 /*HT*/ {LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, NULL, LSRS}, 1018 /*PR*/ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}, 1019 /*PR*/ {LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LSRS, NULL, LTRT}, 1020 }; 1021 const P2PTransportChannelTest::Result* 1022 P2PTransportChannelTest::kMatrixSharedSocketAsIce 1023 [NUM_CONFIGS][NUM_CONFIGS] = { 1024 // OPEN CONE ADDR PORT SYMM 2CON SCON !UDP !TCP HTTP PRXH PRXS 1025 /*OP*/ {LULU, LUSU, LUSU, LUSU, LUPU, LUSU, LUPU, PTLT, LTPT, LSRS, NULL, PTLT}, 1026 /*CO*/ {LULU, LUSU, LUSU, LUSU, LUPU, LUSU, LUPU, NULL, NULL, LSRS, NULL, LTRT}, 1027 /*AD*/ {LULU, LUSU, LUSU, LUSU, LUPU, LUSU, LUPU, NULL, NULL, LSRS, NULL, LTRT}, 1028 /*PO*/ {LULU, LUSU, LUSU, LUSU, LURU, LUSU, LURU, NULL, NULL, LSRS, NULL, LTRT}, 1029 /*SY*/ {PULU, PUSU, PUSU, PURU, PURU, PUSU, PURU, NULL, NULL, LSRS, NULL, LTRT}, 1030 /*2C*/ {LULU, LUSU, LUSU, LUSU, LUPU, LUSU, LUPU, NULL, NULL, LSRS, NULL, LTRT}, 1031 /*SC*/ {PULU, PUSU, PUSU, PURU, PURU, PUSU, PURU, NULL, NULL, LSRS, NULL, LTRT}, 1032 /*!U*/ {PTLT, NULL, NULL, NULL, NULL, NULL, NULL, PTLT, LTPT, LSRS, NULL, LTRT}, 1033 /*!T*/ {LTRT, NULL, NULL, NULL, NULL, NULL, NULL, PTLT, LTRT, LSRS, NULL, LTRT}, 1034 /*HT*/ {LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, LSRS, NULL, LSRS}, 1035 /*PR*/ {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}, 1036 /*PR*/ {LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LTRT, LSRS, NULL, LTRT}, 1037 }; 1038 1039 // The actual tests that exercise all the various configurations. 1040 // Test names are of the form P2PTransportChannelTest_TestOPENToNAT_FULL_CONE 1041 // Same test case is run in both GICE and ICE mode. 1042 // kDefaultStepDelay - is used for all Gice cases. 1043 // kMinimumStepDelay - is used when both end points have 1044 // PORTALLOCATOR_ENABLE_SHARED_UFRAG flag enabled. 1045 // Technically we should be able to use kMinimumStepDelay irrespective of 1046 // protocol type. But which might need modifications to current result matrices 1047 // for tests in this file. 1048 #define P2P_TEST_DECLARATION(x, y, z) \ 1049 TEST_F(P2PTransportChannelTest, z##Test##x##To##y##AsGiceNoneSharedUfrag) { \ 1050 ConfigureEndpoints(x, y, kDefaultPortAllocatorFlags, \ 1051 kDefaultPortAllocatorFlags, \ 1052 kDefaultStepDelay, kDefaultStepDelay, \ 1053 cricket::ICEPROTO_GOOGLE); \ 1054 if (kMatrix[x][y] != NULL) \ 1055 Test(*kMatrix[x][y]); \ 1056 else \ 1057 LOG(LS_WARNING) << "Not yet implemented"; \ 1058 } \ 1059 TEST_F(P2PTransportChannelTest, z##Test##x##To##y##AsGiceP0SharedUfrag) { \ 1060 ConfigureEndpoints(x, y, PORTALLOCATOR_ENABLE_SHARED_UFRAG, \ 1061 kDefaultPortAllocatorFlags, \ 1062 kDefaultStepDelay, kDefaultStepDelay, \ 1063 cricket::ICEPROTO_GOOGLE); \ 1064 if (kMatrix[x][y] != NULL) \ 1065 Test(*kMatrix[x][y]); \ 1066 else \ 1067 LOG(LS_WARNING) << "Not yet implemented"; \ 1068 } \ 1069 TEST_F(P2PTransportChannelTest, z##Test##x##To##y##AsGiceP1SharedUfrag) { \ 1070 ConfigureEndpoints(x, y, kDefaultPortAllocatorFlags, \ 1071 PORTALLOCATOR_ENABLE_SHARED_UFRAG, \ 1072 kDefaultStepDelay, kDefaultStepDelay, \ 1073 cricket::ICEPROTO_GOOGLE); \ 1074 if (kMatrixSharedUfrag[x][y] != NULL) \ 1075 Test(*kMatrixSharedUfrag[x][y]); \ 1076 else \ 1077 LOG(LS_WARNING) << "Not yet implemented"; \ 1078 } \ 1079 TEST_F(P2PTransportChannelTest, z##Test##x##To##y##AsGiceBothSharedUfrag) { \ 1080 ConfigureEndpoints(x, y, PORTALLOCATOR_ENABLE_SHARED_UFRAG, \ 1081 PORTALLOCATOR_ENABLE_SHARED_UFRAG, \ 1082 kDefaultStepDelay, kDefaultStepDelay, \ 1083 cricket::ICEPROTO_GOOGLE); \ 1084 if (kMatrixSharedUfrag[x][y] != NULL) \ 1085 Test(*kMatrixSharedUfrag[x][y]); \ 1086 else \ 1087 LOG(LS_WARNING) << "Not yet implemented"; \ 1088 } \ 1089 TEST_F(P2PTransportChannelTest, \ 1090 z##Test##x##To##y##AsGiceBothSharedUfragWithMinimumStepDelay) { \ 1091 ConfigureEndpoints(x, y, PORTALLOCATOR_ENABLE_SHARED_UFRAG, \ 1092 PORTALLOCATOR_ENABLE_SHARED_UFRAG, \ 1093 kMinimumStepDelay, kMinimumStepDelay, \ 1094 cricket::ICEPROTO_GOOGLE); \ 1095 if (kMatrixSharedUfrag[x][y] != NULL) \ 1096 Test(*kMatrixSharedUfrag[x][y]); \ 1097 else \ 1098 LOG(LS_WARNING) << "Not yet implemented"; \ 1099 } \ 1100 TEST_F(P2PTransportChannelTest, \ 1101 z##Test##x##To##y##AsGiceBothSharedUfragSocket) { \ 1102 ConfigureEndpoints(x, y, PORTALLOCATOR_ENABLE_SHARED_UFRAG | \ 1103 PORTALLOCATOR_ENABLE_SHARED_SOCKET, \ 1104 PORTALLOCATOR_ENABLE_SHARED_UFRAG | \ 1105 PORTALLOCATOR_ENABLE_SHARED_SOCKET, \ 1106 kMinimumStepDelay, kMinimumStepDelay, \ 1107 cricket::ICEPROTO_GOOGLE); \ 1108 if (kMatrixSharedSocketAsGice[x][y] != NULL) \ 1109 Test(*kMatrixSharedSocketAsGice[x][y]); \ 1110 else \ 1111 LOG(LS_WARNING) << "Not yet implemented"; \ 1112 } \ 1113 TEST_F(P2PTransportChannelTest, z##Test##x##To##y##AsIce) { \ 1114 ConfigureEndpoints(x, y, PORTALLOCATOR_ENABLE_SHARED_UFRAG | \ 1115 PORTALLOCATOR_ENABLE_SHARED_SOCKET, \ 1116 PORTALLOCATOR_ENABLE_SHARED_UFRAG | \ 1117 PORTALLOCATOR_ENABLE_SHARED_SOCKET, \ 1118 kMinimumStepDelay, kMinimumStepDelay, \ 1119 cricket::ICEPROTO_RFC5245); \ 1120 if (kMatrixSharedSocketAsIce[x][y] != NULL) \ 1121 Test(*kMatrixSharedSocketAsIce[x][y]); \ 1122 else \ 1123 LOG(LS_WARNING) << "Not yet implemented"; \ 1124 } 1125 1126 #define P2P_TEST(x, y) \ 1127 P2P_TEST_DECLARATION(x, y,) 1128 1129 #define FLAKY_P2P_TEST(x, y) \ 1130 P2P_TEST_DECLARATION(x, y, DISABLED_) 1131 1132 // TODO(holmer): Disabled due to randomly failing on webrtc buildbots. 1133 // Issue: webrtc/2383 1134 #define P2P_TEST_SET(x) \ 1135 P2P_TEST(x, OPEN) \ 1136 FLAKY_P2P_TEST(x, NAT_FULL_CONE) \ 1137 FLAKY_P2P_TEST(x, NAT_ADDR_RESTRICTED) \ 1138 FLAKY_P2P_TEST(x, NAT_PORT_RESTRICTED) \ 1139 P2P_TEST(x, NAT_SYMMETRIC) \ 1140 FLAKY_P2P_TEST(x, NAT_DOUBLE_CONE) \ 1141 P2P_TEST(x, NAT_SYMMETRIC_THEN_CONE) \ 1142 P2P_TEST(x, BLOCK_UDP) \ 1143 P2P_TEST(x, BLOCK_UDP_AND_INCOMING_TCP) \ 1144 P2P_TEST(x, BLOCK_ALL_BUT_OUTGOING_HTTP) \ 1145 P2P_TEST(x, PROXY_HTTPS) \ 1146 P2P_TEST(x, PROXY_SOCKS) 1147 1148 #define FLAKY_P2P_TEST_SET(x) \ 1149 P2P_TEST(x, OPEN) \ 1150 P2P_TEST(x, NAT_FULL_CONE) \ 1151 P2P_TEST(x, NAT_ADDR_RESTRICTED) \ 1152 P2P_TEST(x, NAT_PORT_RESTRICTED) \ 1153 P2P_TEST(x, NAT_SYMMETRIC) \ 1154 P2P_TEST(x, NAT_DOUBLE_CONE) \ 1155 P2P_TEST(x, NAT_SYMMETRIC_THEN_CONE) \ 1156 P2P_TEST(x, BLOCK_UDP) \ 1157 P2P_TEST(x, BLOCK_UDP_AND_INCOMING_TCP) \ 1158 P2P_TEST(x, BLOCK_ALL_BUT_OUTGOING_HTTP) \ 1159 P2P_TEST(x, PROXY_HTTPS) \ 1160 P2P_TEST(x, PROXY_SOCKS) 1161 1162 P2P_TEST_SET(OPEN) 1163 P2P_TEST_SET(NAT_FULL_CONE) 1164 P2P_TEST_SET(NAT_ADDR_RESTRICTED) 1165 P2P_TEST_SET(NAT_PORT_RESTRICTED) 1166 P2P_TEST_SET(NAT_SYMMETRIC) 1167 P2P_TEST_SET(NAT_DOUBLE_CONE) 1168 P2P_TEST_SET(NAT_SYMMETRIC_THEN_CONE) 1169 P2P_TEST_SET(BLOCK_UDP) 1170 P2P_TEST_SET(BLOCK_UDP_AND_INCOMING_TCP) 1171 P2P_TEST_SET(BLOCK_ALL_BUT_OUTGOING_HTTP) 1172 P2P_TEST_SET(PROXY_HTTPS) 1173 P2P_TEST_SET(PROXY_SOCKS) 1174 1175 // Test that we restart candidate allocation when local ufrag&pwd changed. 1176 // Standard Ice protocol is used. 1177 TEST_F(P2PTransportChannelTest, HandleUfragPwdChangeAsIce) { 1178 ConfigureEndpoints(OPEN, OPEN, 1179 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1180 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1181 kMinimumStepDelay, kMinimumStepDelay, 1182 cricket::ICEPROTO_RFC5245); 1183 CreateChannels(1); 1184 TestHandleIceUfragPasswordChanged(); 1185 DestroyChannels(); 1186 } 1187 1188 // Test that we restart candidate allocation when local ufrag&pwd changed. 1189 // Standard Ice protocol is used. 1190 TEST_F(P2PTransportChannelTest, HandleUfragPwdChangeBundleAsIce) { 1191 ConfigureEndpoints(OPEN, OPEN, 1192 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1193 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1194 kMinimumStepDelay, kMinimumStepDelay, 1195 cricket::ICEPROTO_RFC5245); 1196 SetAllocatorFlags(0, cricket::PORTALLOCATOR_ENABLE_BUNDLE); 1197 SetAllocatorFlags(1, cricket::PORTALLOCATOR_ENABLE_BUNDLE); 1198 1199 CreateChannels(2); 1200 TestHandleIceUfragPasswordChanged(); 1201 DestroyChannels(); 1202 } 1203 1204 // Test that we restart candidate allocation when local ufrag&pwd changed. 1205 // Google Ice protocol is used. 1206 TEST_F(P2PTransportChannelTest, HandleUfragPwdChangeAsGice) { 1207 ConfigureEndpoints(OPEN, OPEN, 1208 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1209 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1210 kDefaultStepDelay, kDefaultStepDelay, 1211 cricket::ICEPROTO_GOOGLE); 1212 CreateChannels(1); 1213 TestHandleIceUfragPasswordChanged(); 1214 DestroyChannels(); 1215 } 1216 1217 // Test that ICE restart works when bundle is enabled. 1218 // Google Ice protocol is used. 1219 TEST_F(P2PTransportChannelTest, HandleUfragPwdChangeBundleAsGice) { 1220 ConfigureEndpoints(OPEN, OPEN, 1221 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1222 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1223 kDefaultStepDelay, kDefaultStepDelay, 1224 cricket::ICEPROTO_GOOGLE); 1225 SetAllocatorFlags(0, cricket::PORTALLOCATOR_ENABLE_BUNDLE); 1226 SetAllocatorFlags(1, cricket::PORTALLOCATOR_ENABLE_BUNDLE); 1227 1228 CreateChannels(2); 1229 TestHandleIceUfragPasswordChanged(); 1230 DestroyChannels(); 1231 } 1232 1233 // Test the operation of GetStats. 1234 TEST_F(P2PTransportChannelTest, GetStats) { 1235 ConfigureEndpoints(OPEN, OPEN, 1236 kDefaultPortAllocatorFlags, 1237 kDefaultPortAllocatorFlags, 1238 kDefaultStepDelay, kDefaultStepDelay, 1239 cricket::ICEPROTO_GOOGLE); 1240 CreateChannels(1); 1241 EXPECT_TRUE_WAIT_MARGIN(ep1_ch1()->readable() && ep1_ch1()->writable() && 1242 ep2_ch1()->readable() && ep2_ch1()->writable(), 1243 1000, 1000); 1244 TestSendRecv(1); 1245 cricket::ConnectionInfos infos; 1246 ASSERT_TRUE(ep1_ch1()->GetStats(&infos)); 1247 ASSERT_EQ(1U, infos.size()); 1248 EXPECT_TRUE(infos[0].new_connection); 1249 EXPECT_TRUE(infos[0].best_connection); 1250 EXPECT_TRUE(infos[0].readable); 1251 EXPECT_TRUE(infos[0].writable); 1252 EXPECT_FALSE(infos[0].timeout); 1253 EXPECT_EQ(10 * 36U, infos[0].sent_total_bytes); 1254 EXPECT_EQ(10 * 36U, infos[0].recv_total_bytes); 1255 EXPECT_GT(infos[0].rtt, 0U); 1256 DestroyChannels(); 1257 } 1258 1259 // Test that we properly handle getting a STUN error due to slow signaling. 1260 TEST_F(P2PTransportChannelTest, DISABLED_SlowSignaling) { 1261 ConfigureEndpoints(OPEN, NAT_SYMMETRIC, 1262 kDefaultPortAllocatorFlags, 1263 kDefaultPortAllocatorFlags, 1264 kDefaultStepDelay, kDefaultStepDelay, 1265 cricket::ICEPROTO_GOOGLE); 1266 // Make signaling from the callee take 500ms, so that the initial STUN pings 1267 // from the callee beat the signaling, and so the caller responds with a 1268 // unknown username error. We should just eat that and carry on; mishandling 1269 // this will instead cause all the callee's connections to be discarded. 1270 SetSignalingDelay(1, 1000); 1271 CreateChannels(1); 1272 const cricket::Connection* best_connection = NULL; 1273 // Wait until the callee's connections are created. 1274 WAIT((best_connection = ep2_ch1()->best_connection()) != NULL, 1000); 1275 // Wait to see if they get culled; they shouldn't. 1276 WAIT(ep2_ch1()->best_connection() != best_connection, 1000); 1277 EXPECT_TRUE(ep2_ch1()->best_connection() == best_connection); 1278 DestroyChannels(); 1279 } 1280 1281 // Test that if remote candidates don't have ufrag and pwd, we still work. 1282 TEST_F(P2PTransportChannelTest, RemoteCandidatesWithoutUfragPwd) { 1283 set_clear_remote_candidates_ufrag_pwd(true); 1284 ConfigureEndpoints(OPEN, OPEN, 1285 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1286 PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1287 kMinimumStepDelay, kMinimumStepDelay, 1288 cricket::ICEPROTO_GOOGLE); 1289 CreateChannels(1); 1290 const cricket::Connection* best_connection = NULL; 1291 // Wait until the callee's connections are created. 1292 WAIT((best_connection = ep2_ch1()->best_connection()) != NULL, 1000); 1293 // Wait to see if they get culled; they shouldn't. 1294 WAIT(ep2_ch1()->best_connection() != best_connection, 1000); 1295 EXPECT_TRUE(ep2_ch1()->best_connection() == best_connection); 1296 DestroyChannels(); 1297 } 1298 1299 // Test that a host behind NAT cannot be reached when incoming_only 1300 // is set to true. 1301 TEST_F(P2PTransportChannelTest, IncomingOnlyBlocked) { 1302 ConfigureEndpoints(NAT_FULL_CONE, OPEN, 1303 kDefaultPortAllocatorFlags, 1304 kDefaultPortAllocatorFlags, 1305 kDefaultStepDelay, kDefaultStepDelay, 1306 cricket::ICEPROTO_GOOGLE); 1307 1308 SetAllocatorFlags(0, kOnlyLocalPorts); 1309 CreateChannels(1); 1310 ep1_ch1()->set_incoming_only(true); 1311 1312 // Pump for 1 second and verify that the channels are not connected. 1313 rtc::Thread::Current()->ProcessMessages(1000); 1314 1315 EXPECT_FALSE(ep1_ch1()->readable()); 1316 EXPECT_FALSE(ep1_ch1()->writable()); 1317 EXPECT_FALSE(ep2_ch1()->readable()); 1318 EXPECT_FALSE(ep2_ch1()->writable()); 1319 1320 DestroyChannels(); 1321 } 1322 1323 // Test that a peer behind NAT can connect to a peer that has 1324 // incoming_only flag set. 1325 TEST_F(P2PTransportChannelTest, IncomingOnlyOpen) { 1326 ConfigureEndpoints(OPEN, NAT_FULL_CONE, 1327 kDefaultPortAllocatorFlags, 1328 kDefaultPortAllocatorFlags, 1329 kDefaultStepDelay, kDefaultStepDelay, 1330 cricket::ICEPROTO_GOOGLE); 1331 1332 SetAllocatorFlags(0, kOnlyLocalPorts); 1333 CreateChannels(1); 1334 ep1_ch1()->set_incoming_only(true); 1335 1336 EXPECT_TRUE_WAIT_MARGIN(ep1_ch1() != NULL && ep2_ch1() != NULL && 1337 ep1_ch1()->readable() && ep1_ch1()->writable() && 1338 ep2_ch1()->readable() && ep2_ch1()->writable(), 1339 1000, 1000); 1340 1341 DestroyChannels(); 1342 } 1343 1344 TEST_F(P2PTransportChannelTest, TestTcpConnectionsFromActiveToPassive) { 1345 AddAddress(0, kPublicAddrs[0]); 1346 AddAddress(1, kPublicAddrs[1]); 1347 1348 SetAllocationStepDelay(0, kMinimumStepDelay); 1349 SetAllocationStepDelay(1, kMinimumStepDelay); 1350 1351 int kOnlyLocalTcpPorts = cricket::PORTALLOCATOR_DISABLE_UDP | 1352 cricket::PORTALLOCATOR_DISABLE_STUN | 1353 cricket::PORTALLOCATOR_DISABLE_RELAY | 1354 cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG; 1355 // Disable all protocols except TCP. 1356 SetAllocatorFlags(0, kOnlyLocalTcpPorts); 1357 SetAllocatorFlags(1, kOnlyLocalTcpPorts); 1358 1359 SetAllowTcpListen(0, true); // actpass. 1360 SetAllowTcpListen(1, false); // active. 1361 1362 CreateChannels(1); 1363 1364 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && ep1_ch1()->writable() && 1365 ep2_ch1()->readable() && ep2_ch1()->writable(), 1366 1000); 1367 EXPECT_TRUE( 1368 ep1_ch1()->best_connection() && ep2_ch1()->best_connection() && 1369 LocalCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[0]) && 1370 RemoteCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[1])); 1371 1372 std::string kTcpProtocol = "tcp"; 1373 EXPECT_EQ(kTcpProtocol, RemoteCandidate(ep1_ch1())->protocol()); 1374 EXPECT_EQ(kTcpProtocol, LocalCandidate(ep1_ch1())->protocol()); 1375 EXPECT_EQ(kTcpProtocol, RemoteCandidate(ep2_ch1())->protocol()); 1376 EXPECT_EQ(kTcpProtocol, LocalCandidate(ep2_ch1())->protocol()); 1377 1378 TestSendRecv(1); 1379 DestroyChannels(); 1380 } 1381 1382 TEST_F(P2PTransportChannelTest, TestBundleAllocatorToBundleAllocator) { 1383 AddAddress(0, kPublicAddrs[0]); 1384 AddAddress(1, kPublicAddrs[1]); 1385 SetAllocatorFlags(0, cricket::PORTALLOCATOR_ENABLE_BUNDLE); 1386 SetAllocatorFlags(1, cricket::PORTALLOCATOR_ENABLE_BUNDLE); 1387 1388 CreateChannels(2); 1389 1390 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && 1391 ep1_ch1()->writable() && 1392 ep2_ch1()->readable() && 1393 ep2_ch1()->writable(), 1394 1000); 1395 EXPECT_TRUE(ep1_ch1()->best_connection() && 1396 ep2_ch1()->best_connection()); 1397 1398 EXPECT_FALSE(ep1_ch2()->readable()); 1399 EXPECT_FALSE(ep1_ch2()->writable()); 1400 EXPECT_FALSE(ep2_ch2()->readable()); 1401 EXPECT_FALSE(ep2_ch2()->writable()); 1402 1403 TestSendRecv(1); // Only 1 channel is writable per Endpoint. 1404 DestroyChannels(); 1405 } 1406 1407 TEST_F(P2PTransportChannelTest, TestBundleAllocatorToNonBundleAllocator) { 1408 AddAddress(0, kPublicAddrs[0]); 1409 AddAddress(1, kPublicAddrs[1]); 1410 // Enable BUNDLE flag at one side. 1411 SetAllocatorFlags(0, cricket::PORTALLOCATOR_ENABLE_BUNDLE); 1412 1413 CreateChannels(2); 1414 1415 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && 1416 ep1_ch1()->writable() && 1417 ep2_ch1()->readable() && 1418 ep2_ch1()->writable(), 1419 1000); 1420 EXPECT_TRUE_WAIT(ep1_ch2()->readable() && 1421 ep1_ch2()->writable() && 1422 ep2_ch2()->readable() && 1423 ep2_ch2()->writable(), 1424 1000); 1425 1426 EXPECT_TRUE(ep1_ch1()->best_connection() && 1427 ep2_ch1()->best_connection()); 1428 EXPECT_TRUE(ep1_ch2()->best_connection() && 1429 ep2_ch2()->best_connection()); 1430 1431 TestSendRecv(2); 1432 DestroyChannels(); 1433 } 1434 1435 TEST_F(P2PTransportChannelTest, TestIceRoleConflictWithoutBundle) { 1436 AddAddress(0, kPublicAddrs[0]); 1437 AddAddress(1, kPublicAddrs[1]); 1438 TestSignalRoleConflict(); 1439 } 1440 1441 TEST_F(P2PTransportChannelTest, TestIceRoleConflictWithBundle) { 1442 AddAddress(0, kPublicAddrs[0]); 1443 AddAddress(1, kPublicAddrs[1]); 1444 SetAllocatorFlags(0, cricket::PORTALLOCATOR_ENABLE_BUNDLE); 1445 SetAllocatorFlags(1, cricket::PORTALLOCATOR_ENABLE_BUNDLE); 1446 TestSignalRoleConflict(); 1447 } 1448 1449 // Tests that the ice configs (protocol, tiebreaker and role) can be passed 1450 // down to ports. 1451 TEST_F(P2PTransportChannelTest, TestIceConfigWillPassDownToPort) { 1452 AddAddress(0, kPublicAddrs[0]); 1453 AddAddress(1, kPublicAddrs[1]); 1454 1455 SetIceRole(0, cricket::ICEROLE_CONTROLLING); 1456 SetIceProtocol(0, cricket::ICEPROTO_GOOGLE); 1457 SetIceTiebreaker(0, kTiebreaker1); 1458 SetIceRole(1, cricket::ICEROLE_CONTROLLING); 1459 SetIceProtocol(1, cricket::ICEPROTO_RFC5245); 1460 SetIceTiebreaker(1, kTiebreaker2); 1461 1462 CreateChannels(1); 1463 1464 EXPECT_EQ_WAIT(2u, ep1_ch1()->ports().size(), 1000); 1465 1466 const std::vector<cricket::PortInterface *> ports_before = ep1_ch1()->ports(); 1467 for (size_t i = 0; i < ports_before.size(); ++i) { 1468 EXPECT_EQ(cricket::ICEROLE_CONTROLLING, ports_before[i]->GetIceRole()); 1469 EXPECT_EQ(cricket::ICEPROTO_GOOGLE, ports_before[i]->IceProtocol()); 1470 EXPECT_EQ(kTiebreaker1, ports_before[i]->IceTiebreaker()); 1471 } 1472 1473 ep1_ch1()->SetIceRole(cricket::ICEROLE_CONTROLLED); 1474 ep1_ch1()->SetIceProtocolType(cricket::ICEPROTO_RFC5245); 1475 ep1_ch1()->SetIceTiebreaker(kTiebreaker2); 1476 1477 const std::vector<cricket::PortInterface *> ports_after = ep1_ch1()->ports(); 1478 for (size_t i = 0; i < ports_after.size(); ++i) { 1479 EXPECT_EQ(cricket::ICEROLE_CONTROLLED, ports_before[i]->GetIceRole()); 1480 EXPECT_EQ(cricket::ICEPROTO_RFC5245, ports_before[i]->IceProtocol()); 1481 // SetIceTiebreaker after Connect() has been called will fail. So expect the 1482 // original value. 1483 EXPECT_EQ(kTiebreaker1, ports_before[i]->IceTiebreaker()); 1484 } 1485 1486 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && 1487 ep1_ch1()->writable() && 1488 ep2_ch1()->readable() && 1489 ep2_ch1()->writable(), 1490 1000); 1491 1492 EXPECT_TRUE(ep1_ch1()->best_connection() && 1493 ep2_ch1()->best_connection()); 1494 1495 TestSendRecv(1); 1496 DestroyChannels(); 1497 } 1498 1499 // This test verifies channel can handle ice messages when channel is in 1500 // hybrid mode. 1501 TEST_F(P2PTransportChannelTest, TestConnectivityBetweenHybridandIce) { 1502 TestHybridConnectivity(cricket::ICEPROTO_RFC5245); 1503 } 1504 1505 // This test verifies channel can handle Gice messages when channel is in 1506 // hybrid mode. 1507 TEST_F(P2PTransportChannelTest, TestConnectivityBetweenHybridandGice) { 1508 TestHybridConnectivity(cricket::ICEPROTO_GOOGLE); 1509 } 1510 1511 // Verify that we can set DSCP value and retrieve properly from P2PTC. 1512 TEST_F(P2PTransportChannelTest, TestDefaultDscpValue) { 1513 AddAddress(0, kPublicAddrs[0]); 1514 AddAddress(1, kPublicAddrs[1]); 1515 1516 CreateChannels(1); 1517 EXPECT_EQ(rtc::DSCP_NO_CHANGE, 1518 GetEndpoint(0)->cd1_.ch_->DefaultDscpValue()); 1519 EXPECT_EQ(rtc::DSCP_NO_CHANGE, 1520 GetEndpoint(1)->cd1_.ch_->DefaultDscpValue()); 1521 GetEndpoint(0)->cd1_.ch_->SetOption( 1522 rtc::Socket::OPT_DSCP, rtc::DSCP_CS6); 1523 GetEndpoint(1)->cd1_.ch_->SetOption( 1524 rtc::Socket::OPT_DSCP, rtc::DSCP_CS6); 1525 EXPECT_EQ(rtc::DSCP_CS6, 1526 GetEndpoint(0)->cd1_.ch_->DefaultDscpValue()); 1527 EXPECT_EQ(rtc::DSCP_CS6, 1528 GetEndpoint(1)->cd1_.ch_->DefaultDscpValue()); 1529 GetEndpoint(0)->cd1_.ch_->SetOption( 1530 rtc::Socket::OPT_DSCP, rtc::DSCP_AF41); 1531 GetEndpoint(1)->cd1_.ch_->SetOption( 1532 rtc::Socket::OPT_DSCP, rtc::DSCP_AF41); 1533 EXPECT_EQ(rtc::DSCP_AF41, 1534 GetEndpoint(0)->cd1_.ch_->DefaultDscpValue()); 1535 EXPECT_EQ(rtc::DSCP_AF41, 1536 GetEndpoint(1)->cd1_.ch_->DefaultDscpValue()); 1537 } 1538 1539 // Verify IPv6 connection is preferred over IPv4. 1540 // Flaky: https://code.google.com/p/webrtc/issues/detail?id=3317 1541 TEST_F(P2PTransportChannelTest, DISABLED_TestIPv6Connections) { 1542 AddAddress(0, kIPv6PublicAddrs[0]); 1543 AddAddress(0, kPublicAddrs[0]); 1544 AddAddress(1, kIPv6PublicAddrs[1]); 1545 AddAddress(1, kPublicAddrs[1]); 1546 1547 SetAllocationStepDelay(0, kMinimumStepDelay); 1548 SetAllocationStepDelay(1, kMinimumStepDelay); 1549 1550 // Enable IPv6 1551 SetAllocatorFlags(0, cricket::PORTALLOCATOR_ENABLE_IPV6); 1552 SetAllocatorFlags(1, cricket::PORTALLOCATOR_ENABLE_IPV6); 1553 1554 CreateChannels(1); 1555 1556 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && ep1_ch1()->writable() && 1557 ep2_ch1()->readable() && ep2_ch1()->writable(), 1558 1000); 1559 EXPECT_TRUE( 1560 ep1_ch1()->best_connection() && ep2_ch1()->best_connection() && 1561 LocalCandidate(ep1_ch1())->address().EqualIPs(kIPv6PublicAddrs[0]) && 1562 RemoteCandidate(ep1_ch1())->address().EqualIPs(kIPv6PublicAddrs[1])); 1563 1564 TestSendRecv(1); 1565 DestroyChannels(); 1566 } 1567 1568 // Testing forceful TURN connections. 1569 TEST_F(P2PTransportChannelTest, TestForceTurn) { 1570 ConfigureEndpoints(NAT_PORT_RESTRICTED, NAT_SYMMETRIC, 1571 kDefaultPortAllocatorFlags | 1572 cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET | 1573 cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1574 kDefaultPortAllocatorFlags | 1575 cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET | 1576 cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG, 1577 kDefaultStepDelay, kDefaultStepDelay, 1578 cricket::ICEPROTO_RFC5245); 1579 set_force_relay(true); 1580 1581 SetAllocationStepDelay(0, kMinimumStepDelay); 1582 SetAllocationStepDelay(1, kMinimumStepDelay); 1583 1584 CreateChannels(1); 1585 1586 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && 1587 ep1_ch1()->writable() && 1588 ep2_ch1()->readable() && 1589 ep2_ch1()->writable(), 1590 1000); 1591 1592 EXPECT_TRUE(ep1_ch1()->best_connection() && 1593 ep2_ch1()->best_connection()); 1594 1595 EXPECT_EQ("relay", RemoteCandidate(ep1_ch1())->type()); 1596 EXPECT_EQ("relay", LocalCandidate(ep1_ch1())->type()); 1597 EXPECT_EQ("relay", RemoteCandidate(ep2_ch1())->type()); 1598 EXPECT_EQ("relay", LocalCandidate(ep2_ch1())->type()); 1599 1600 TestSendRecv(1); 1601 DestroyChannels(); 1602 } 1603 1604 // Test what happens when we have 2 users behind the same NAT. This can lead 1605 // to interesting behavior because the STUN server will only give out the 1606 // address of the outermost NAT. 1607 class P2PTransportChannelSameNatTest : public P2PTransportChannelTestBase { 1608 protected: 1609 void ConfigureEndpoints(Config nat_type, Config config1, Config config2) { 1610 ASSERT(nat_type >= NAT_FULL_CONE && nat_type <= NAT_SYMMETRIC); 1611 rtc::NATSocketServer::Translator* outer_nat = 1612 nat()->AddTranslator(kPublicAddrs[0], kNatAddrs[0], 1613 static_cast<rtc::NATType>(nat_type - NAT_FULL_CONE)); 1614 ConfigureEndpoint(outer_nat, 0, config1); 1615 ConfigureEndpoint(outer_nat, 1, config2); 1616 } 1617 void ConfigureEndpoint(rtc::NATSocketServer::Translator* nat, 1618 int endpoint, Config config) { 1619 ASSERT(config <= NAT_SYMMETRIC); 1620 if (config == OPEN) { 1621 AddAddress(endpoint, kPrivateAddrs[endpoint]); 1622 nat->AddClient(kPrivateAddrs[endpoint]); 1623 } else { 1624 AddAddress(endpoint, kCascadedPrivateAddrs[endpoint]); 1625 nat->AddTranslator(kPrivateAddrs[endpoint], kCascadedNatAddrs[endpoint], 1626 static_cast<rtc::NATType>(config - NAT_FULL_CONE))->AddClient( 1627 kCascadedPrivateAddrs[endpoint]); 1628 } 1629 } 1630 }; 1631 1632 TEST_F(P2PTransportChannelSameNatTest, TestConesBehindSameCone) { 1633 ConfigureEndpoints(NAT_FULL_CONE, NAT_FULL_CONE, NAT_FULL_CONE); 1634 Test(kLocalUdpToStunUdp); 1635 } 1636 1637 // Test what happens when we have multiple available pathways. 1638 // In the future we will try different RTTs and configs for the different 1639 // interfaces, so that we can simulate a user with Ethernet and VPN networks. 1640 class P2PTransportChannelMultihomedTest : public P2PTransportChannelTestBase { 1641 }; 1642 1643 // Test that we can establish connectivity when both peers are multihomed. 1644 TEST_F(P2PTransportChannelMultihomedTest, DISABLED_TestBasic) { 1645 AddAddress(0, kPublicAddrs[0]); 1646 AddAddress(0, kAlternateAddrs[0]); 1647 AddAddress(1, kPublicAddrs[1]); 1648 AddAddress(1, kAlternateAddrs[1]); 1649 Test(kLocalUdpToLocalUdp); 1650 } 1651 1652 // Test that we can quickly switch links if an interface goes down. 1653 TEST_F(P2PTransportChannelMultihomedTest, TestFailover) { 1654 AddAddress(0, kPublicAddrs[0]); 1655 // Adding alternate address will make sure |kPublicAddrs| has the higher 1656 // priority than others. This is due to FakeNetwork::AddInterface method. 1657 AddAddress(1, kAlternateAddrs[1]); 1658 AddAddress(1, kPublicAddrs[1]); 1659 1660 // Use only local ports for simplicity. 1661 SetAllocatorFlags(0, kOnlyLocalPorts); 1662 SetAllocatorFlags(1, kOnlyLocalPorts); 1663 1664 // Create channels and let them go writable, as usual. 1665 CreateChannels(1); 1666 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && ep1_ch1()->writable() && 1667 ep2_ch1()->readable() && ep2_ch1()->writable(), 1668 1000); 1669 EXPECT_TRUE( 1670 ep1_ch1()->best_connection() && ep2_ch1()->best_connection() && 1671 LocalCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[0]) && 1672 RemoteCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[1])); 1673 1674 // Blackhole any traffic to or from the public addrs. 1675 LOG(LS_INFO) << "Failing over..."; 1676 fw()->AddRule(false, rtc::FP_ANY, rtc::FD_ANY, 1677 kPublicAddrs[1]); 1678 1679 // We should detect loss of connectivity within 5 seconds or so. 1680 EXPECT_TRUE_WAIT(!ep1_ch1()->writable(), 7000); 1681 1682 // We should switch over to use the alternate addr immediately 1683 // when we lose writability. 1684 EXPECT_TRUE_WAIT( 1685 ep1_ch1()->best_connection() && ep2_ch1()->best_connection() && 1686 LocalCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[0]) && 1687 RemoteCandidate(ep1_ch1())->address().EqualIPs(kAlternateAddrs[1]), 1688 3000); 1689 1690 DestroyChannels(); 1691 } 1692 1693 // Test that we can switch links in a coordinated fashion. 1694 TEST_F(P2PTransportChannelMultihomedTest, TestDrain) { 1695 AddAddress(0, kPublicAddrs[0]); 1696 AddAddress(1, kPublicAddrs[1]); 1697 // Use only local ports for simplicity. 1698 SetAllocatorFlags(0, kOnlyLocalPorts); 1699 SetAllocatorFlags(1, kOnlyLocalPorts); 1700 1701 // Create channels and let them go writable, as usual. 1702 CreateChannels(1); 1703 EXPECT_TRUE_WAIT(ep1_ch1()->readable() && ep1_ch1()->writable() && 1704 ep2_ch1()->readable() && ep2_ch1()->writable(), 1705 1000); 1706 EXPECT_TRUE( 1707 ep1_ch1()->best_connection() && ep2_ch1()->best_connection() && 1708 LocalCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[0]) && 1709 RemoteCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[1])); 1710 1711 // Remove the public interface, add the alternate interface, and allocate 1712 // a new generation of candidates for the new interface (via Connect()). 1713 LOG(LS_INFO) << "Draining..."; 1714 AddAddress(1, kAlternateAddrs[1]); 1715 RemoveAddress(1, kPublicAddrs[1]); 1716 ep2_ch1()->Connect(); 1717 1718 // We should switch over to use the alternate address after 1719 // an exchange of pings. 1720 EXPECT_TRUE_WAIT( 1721 ep1_ch1()->best_connection() && ep2_ch1()->best_connection() && 1722 LocalCandidate(ep1_ch1())->address().EqualIPs(kPublicAddrs[0]) && 1723 RemoteCandidate(ep1_ch1())->address().EqualIPs(kAlternateAddrs[1]), 1724 3000); 1725 1726 DestroyChannels(); 1727 } 1728
