/* * libjingle * Copyright 2004 Google Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "talk/base/crc32.h" #include "talk/base/gunit.h" #include "talk/base/helpers.h" #include "talk/base/logging.h" #include "talk/base/natserver.h" #include "talk/base/natsocketfactory.h" #include "talk/base/physicalsocketserver.h" #include "talk/base/scoped_ptr.h" #include "talk/base/socketaddress.h" #include "talk/base/stringutils.h" #include "talk/base/thread.h" #include "talk/base/virtualsocketserver.h" #include "talk/p2p/base/basicpacketsocketfactory.h" #include "talk/p2p/base/portproxy.h" #include "talk/p2p/base/relayport.h" #include "talk/p2p/base/stunport.h" #include "talk/p2p/base/tcpport.h" #include "talk/p2p/base/testrelayserver.h" #include "talk/p2p/base/teststunserver.h" #include "talk/p2p/base/testturnserver.h" #include "talk/p2p/base/transport.h" #include "talk/p2p/base/turnport.h" using talk_base::AsyncPacketSocket; using talk_base::ByteBuffer; using talk_base::NATType; using talk_base::NAT_OPEN_CONE; using talk_base::NAT_ADDR_RESTRICTED; using talk_base::NAT_PORT_RESTRICTED; using talk_base::NAT_SYMMETRIC; using talk_base::PacketSocketFactory; using talk_base::scoped_ptr; using talk_base::Socket; using talk_base::SocketAddress; using namespace cricket; static const int kTimeout = 1000; static const SocketAddress kLocalAddr1("192.168.1.2", 0); static const SocketAddress kLocalAddr2("192.168.1.3", 0); static const SocketAddress kNatAddr1("77.77.77.77", talk_base::NAT_SERVER_PORT); static const SocketAddress kNatAddr2("88.88.88.88", talk_base::NAT_SERVER_PORT); static const SocketAddress kStunAddr("99.99.99.1", STUN_SERVER_PORT); static const SocketAddress kRelayUdpIntAddr("99.99.99.2", 5000); static const SocketAddress kRelayUdpExtAddr("99.99.99.3", 5001); static const SocketAddress kRelayTcpIntAddr("99.99.99.2", 5002); static const SocketAddress kRelayTcpExtAddr("99.99.99.3", 5003); static const SocketAddress kRelaySslTcpIntAddr("99.99.99.2", 5004); static const SocketAddress kRelaySslTcpExtAddr("99.99.99.3", 5005); static const SocketAddress kTurnUdpIntAddr("99.99.99.4", STUN_SERVER_PORT); static const SocketAddress kTurnUdpExtAddr("99.99.99.5", 0); static const RelayCredentials kRelayCredentials("test", "test"); // TODO: Update these when RFC5245 is completely supported. // Magic value of 30 is from RFC3484, for IPv4 addresses. static const uint32 kDefaultPrflxPriority = ICE_TYPE_PREFERENCE_PRFLX << 24 | 30 << 8 | (256 - ICE_CANDIDATE_COMPONENT_DEFAULT); static const int STUN_ERROR_BAD_REQUEST_AS_GICE = STUN_ERROR_BAD_REQUEST / 256 * 100 + STUN_ERROR_BAD_REQUEST % 256; static const int STUN_ERROR_UNAUTHORIZED_AS_GICE = STUN_ERROR_UNAUTHORIZED / 256 * 100 + STUN_ERROR_UNAUTHORIZED % 256; static const int STUN_ERROR_SERVER_ERROR_AS_GICE = STUN_ERROR_SERVER_ERROR / 256 * 100 + STUN_ERROR_SERVER_ERROR % 256; static const int kTiebreaker1 = 11111; static const int kTiebreaker2 = 22222; static Candidate GetCandidate(Port* port) { assert(port->Candidates().size() == 1); return port->Candidates()[0]; } static SocketAddress GetAddress(Port* port) { return GetCandidate(port).address(); } static IceMessage* CopyStunMessage(const IceMessage* src) { IceMessage* dst = new IceMessage(); ByteBuffer buf; src->Write(&buf); dst->Read(&buf); return dst; } static bool WriteStunMessage(const StunMessage* msg, ByteBuffer* buf) { buf->Resize(0); // clear out any existing buffer contents return msg->Write(buf); } // Stub port class for testing STUN generation and processing. class TestPort : public Port { public: TestPort(talk_base::Thread* thread, const std::string& type, talk_base::PacketSocketFactory* factory, talk_base::Network* network, const talk_base::IPAddress& ip, int min_port, int max_port, const std::string& username_fragment, const std::string& password) : Port(thread, type, factory, network, ip, min_port, max_port, username_fragment, password) { } ~TestPort() {} // Expose GetStunMessage so that we can test it. using cricket::Port::GetStunMessage; // The last StunMessage that was sent on this Port. // TODO: Make these const; requires changes to SendXXXXResponse. ByteBuffer* last_stun_buf() { return last_stun_buf_.get(); } IceMessage* last_stun_msg() { return last_stun_msg_.get(); } int last_stun_error_code() { int code = 0; if (last_stun_msg_) { const StunErrorCodeAttribute* error_attr = last_stun_msg_->GetErrorCode(); if (error_attr) { code = error_attr->code(); } } return code; } virtual void PrepareAddress() { talk_base::SocketAddress addr(ip(), min_port()); AddAddress(addr, addr, "udp", Type(), ICE_TYPE_PREFERENCE_HOST, true); } // Exposed for testing candidate building. void AddCandidateAddress(const talk_base::SocketAddress& addr) { AddAddress(addr, addr, "udp", Type(), type_preference_, false); } void AddCandidateAddress(const talk_base::SocketAddress& addr, const talk_base::SocketAddress& base_address, const std::string& type, int type_preference, bool final) { AddAddress(addr, base_address, "udp", type, type_preference, final); } virtual Connection* CreateConnection(const Candidate& remote_candidate, CandidateOrigin origin) { Connection* conn = new ProxyConnection(this, 0, remote_candidate); AddConnection(conn); // Set use-candidate attribute flag as this will add USE-CANDIDATE attribute // in STUN binding requests. conn->set_use_candidate_attr(true); return conn; } virtual int SendTo( const void* data, size_t size, const talk_base::SocketAddress& addr, bool payload) { if (!payload) { IceMessage* msg = new IceMessage; ByteBuffer* buf = new ByteBuffer(static_cast(data), size); ByteBuffer::ReadPosition pos(buf->GetReadPosition()); if (!msg->Read(buf)) { delete msg; delete buf; return -1; } buf->SetReadPosition(pos); last_stun_buf_.reset(buf); last_stun_msg_.reset(msg); } return static_cast(size); } virtual int SetOption(talk_base::Socket::Option opt, int value) { return 0; } virtual int GetOption(talk_base::Socket::Option opt, int* value) { return -1; } virtual int GetError() { return 0; } void Reset() { last_stun_buf_.reset(); last_stun_msg_.reset(); } void set_type_preference(int type_preference) { type_preference_ = type_preference; } private: talk_base::scoped_ptr last_stun_buf_; talk_base::scoped_ptr last_stun_msg_; int type_preference_; }; class TestChannel : public sigslot::has_slots<> { public: TestChannel(Port* p1, Port* p2) : ice_mode_(ICEMODE_FULL), src_(p1), dst_(p2), complete_count_(0), conn_(NULL), remote_request_(NULL), nominated_(false) { src_->SignalPortComplete.connect( this, &TestChannel::OnPortComplete); src_->SignalUnknownAddress.connect(this, &TestChannel::OnUnknownAddress); } int complete_count() { return complete_count_; } Connection* conn() { return conn_; } const SocketAddress& remote_address() { return remote_address_; } const std::string remote_fragment() { return remote_frag_; } void Start() { src_->PrepareAddress(); } void CreateConnection() { conn_ = src_->CreateConnection(GetCandidate(dst_), Port::ORIGIN_MESSAGE); IceMode remote_ice_mode = (ice_mode_ == ICEMODE_FULL) ? ICEMODE_LITE : ICEMODE_FULL; conn_->set_remote_ice_mode(remote_ice_mode); conn_->set_use_candidate_attr(remote_ice_mode == ICEMODE_FULL); conn_->SignalStateChange.connect( this, &TestChannel::OnConnectionStateChange); } void OnConnectionStateChange(Connection* conn) { if (conn->write_state() == Connection::STATE_WRITABLE) { conn->set_use_candidate_attr(true); nominated_ = true; } } void AcceptConnection() { ASSERT_TRUE(remote_request_.get() != NULL); Candidate c = GetCandidate(dst_); c.set_address(remote_address_); conn_ = src_->CreateConnection(c, Port::ORIGIN_MESSAGE); src_->SendBindingResponse(remote_request_.get(), remote_address_); remote_request_.reset(); } void Ping() { Ping(0); } void Ping(uint32 now) { conn_->Ping(now); } void Stop() { conn_->SignalDestroyed.connect(this, &TestChannel::OnDestroyed); conn_->Destroy(); } void OnPortComplete(Port* port) { complete_count_++; } void SetIceMode(IceMode ice_mode) { ice_mode_ = ice_mode; } void OnUnknownAddress(PortInterface* port, const SocketAddress& addr, ProtocolType proto, IceMessage* msg, const std::string& rf, bool /*port_muxed*/) { ASSERT_EQ(src_.get(), port); if (!remote_address_.IsNil()) { ASSERT_EQ(remote_address_, addr); } // MI and PRIORITY attribute should be present in ping requests when port // is in ICEPROTO_RFC5245 mode. const cricket::StunUInt32Attribute* priority_attr = msg->GetUInt32(STUN_ATTR_PRIORITY); const cricket::StunByteStringAttribute* mi_attr = msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY); const cricket::StunUInt32Attribute* fingerprint_attr = msg->GetUInt32(STUN_ATTR_FINGERPRINT); if (src_->IceProtocol() == cricket::ICEPROTO_RFC5245) { EXPECT_TRUE(priority_attr != NULL); EXPECT_TRUE(mi_attr != NULL); EXPECT_TRUE(fingerprint_attr != NULL); } else { EXPECT_TRUE(priority_attr == NULL); EXPECT_TRUE(mi_attr == NULL); EXPECT_TRUE(fingerprint_attr == NULL); } remote_address_ = addr; remote_request_.reset(CopyStunMessage(msg)); remote_frag_ = rf; } void OnDestroyed(Connection* conn) { ASSERT_EQ(conn_, conn); conn_ = NULL; } bool nominated() const { return nominated_; } private: IceMode ice_mode_; talk_base::scoped_ptr src_; Port* dst_; int complete_count_; Connection* conn_; SocketAddress remote_address_; talk_base::scoped_ptr remote_request_; std::string remote_frag_; bool nominated_; }; class PortTest : public testing::Test, public sigslot::has_slots<> { public: PortTest() : main_(talk_base::Thread::Current()), pss_(new talk_base::PhysicalSocketServer), ss_(new talk_base::VirtualSocketServer(pss_.get())), ss_scope_(ss_.get()), network_("unittest", "unittest", talk_base::IPAddress(INADDR_ANY), 32), socket_factory_(talk_base::Thread::Current()), nat_factory1_(ss_.get(), kNatAddr1), nat_factory2_(ss_.get(), kNatAddr2), nat_socket_factory1_(&nat_factory1_), nat_socket_factory2_(&nat_factory2_), stun_server_(main_, kStunAddr), turn_server_(main_, kTurnUdpIntAddr, kTurnUdpExtAddr), relay_server_(main_, kRelayUdpIntAddr, kRelayUdpExtAddr, kRelayTcpIntAddr, kRelayTcpExtAddr, kRelaySslTcpIntAddr, kRelaySslTcpExtAddr), username_(talk_base::CreateRandomString(ICE_UFRAG_LENGTH)), password_(talk_base::CreateRandomString(ICE_PWD_LENGTH)), ice_protocol_(cricket::ICEPROTO_GOOGLE), role_conflict_(false) { network_.AddIP(talk_base::IPAddress(INADDR_ANY)); } protected: static void SetUpTestCase() { // Ensure the RNG is inited. talk_base::InitRandom(NULL, 0); } void TestLocalToLocal() { Port* port1 = CreateUdpPort(kLocalAddr1); Port* port2 = CreateUdpPort(kLocalAddr2); TestConnectivity("udp", port1, "udp", port2, true, true, true, true); } void TestLocalToStun(NATType ntype) { Port* port1 = CreateUdpPort(kLocalAddr1); nat_server2_.reset(CreateNatServer(kNatAddr2, ntype)); Port* port2 = CreateStunPort(kLocalAddr2, &nat_socket_factory2_); TestConnectivity("udp", port1, StunName(ntype), port2, ntype == NAT_OPEN_CONE, true, ntype != NAT_SYMMETRIC, true); } void TestLocalToRelay(RelayType rtype, ProtocolType proto) { Port* port1 = CreateUdpPort(kLocalAddr1); Port* port2 = CreateRelayPort(kLocalAddr2, rtype, proto, PROTO_UDP); TestConnectivity("udp", port1, RelayName(rtype, proto), port2, rtype == RELAY_GTURN, true, true, true); } void TestStunToLocal(NATType ntype) { nat_server1_.reset(CreateNatServer(kNatAddr1, ntype)); Port* port1 = CreateStunPort(kLocalAddr1, &nat_socket_factory1_); Port* port2 = CreateUdpPort(kLocalAddr2); TestConnectivity(StunName(ntype), port1, "udp", port2, true, ntype != NAT_SYMMETRIC, true, true); } void TestStunToStun(NATType ntype1, NATType ntype2) { nat_server1_.reset(CreateNatServer(kNatAddr1, ntype1)); Port* port1 = CreateStunPort(kLocalAddr1, &nat_socket_factory1_); nat_server2_.reset(CreateNatServer(kNatAddr2, ntype2)); Port* port2 = CreateStunPort(kLocalAddr2, &nat_socket_factory2_); TestConnectivity(StunName(ntype1), port1, StunName(ntype2), port2, ntype2 == NAT_OPEN_CONE, ntype1 != NAT_SYMMETRIC, ntype2 != NAT_SYMMETRIC, ntype1 + ntype2 < (NAT_PORT_RESTRICTED + NAT_SYMMETRIC)); } void TestStunToRelay(NATType ntype, RelayType rtype, ProtocolType proto) { nat_server1_.reset(CreateNatServer(kNatAddr1, ntype)); Port* port1 = CreateStunPort(kLocalAddr1, &nat_socket_factory1_); Port* port2 = CreateRelayPort(kLocalAddr2, rtype, proto, PROTO_UDP); TestConnectivity(StunName(ntype), port1, RelayName(rtype, proto), port2, rtype == RELAY_GTURN, ntype != NAT_SYMMETRIC, true, true); } void TestTcpToTcp() { Port* port1 = CreateTcpPort(kLocalAddr1); Port* port2 = CreateTcpPort(kLocalAddr2); TestConnectivity("tcp", port1, "tcp", port2, true, false, true, true); } void TestTcpToRelay(RelayType rtype, ProtocolType proto) { Port* port1 = CreateTcpPort(kLocalAddr1); Port* port2 = CreateRelayPort(kLocalAddr2, rtype, proto, PROTO_TCP); TestConnectivity("tcp", port1, RelayName(rtype, proto), port2, rtype == RELAY_GTURN, false, true, true); } void TestSslTcpToRelay(RelayType rtype, ProtocolType proto) { Port* port1 = CreateTcpPort(kLocalAddr1); Port* port2 = CreateRelayPort(kLocalAddr2, rtype, proto, PROTO_SSLTCP); TestConnectivity("ssltcp", port1, RelayName(rtype, proto), port2, rtype == RELAY_GTURN, false, true, true); } // helpers for above functions UDPPort* CreateUdpPort(const SocketAddress& addr) { return CreateUdpPort(addr, &socket_factory_); } UDPPort* CreateUdpPort(const SocketAddress& addr, PacketSocketFactory* socket_factory) { UDPPort* port = UDPPort::Create(main_, socket_factory, &network_, addr.ipaddr(), 0, 0, username_, password_); port->SetIceProtocolType(ice_protocol_); return port; } TCPPort* CreateTcpPort(const SocketAddress& addr) { TCPPort* port = CreateTcpPort(addr, &socket_factory_); port->SetIceProtocolType(ice_protocol_); return port; } TCPPort* CreateTcpPort(const SocketAddress& addr, PacketSocketFactory* socket_factory) { TCPPort* port = TCPPort::Create(main_, socket_factory, &network_, addr.ipaddr(), 0, 0, username_, password_, true); port->SetIceProtocolType(ice_protocol_); return port; } StunPort* CreateStunPort(const SocketAddress& addr, talk_base::PacketSocketFactory* factory) { StunPort* port = StunPort::Create(main_, factory, &network_, addr.ipaddr(), 0, 0, username_, password_, kStunAddr); port->SetIceProtocolType(ice_protocol_); return port; } Port* CreateRelayPort(const SocketAddress& addr, RelayType rtype, ProtocolType int_proto, ProtocolType ext_proto) { if (rtype == RELAY_TURN) { return CreateTurnPort(addr, &socket_factory_, int_proto, ext_proto); } else { return CreateGturnPort(addr, int_proto, ext_proto); } } TurnPort* CreateTurnPort(const SocketAddress& addr, PacketSocketFactory* socket_factory, ProtocolType int_proto, ProtocolType ext_proto) { TurnPort* port = TurnPort::Create(main_, socket_factory, &network_, addr.ipaddr(), 0, 0, username_, password_, ProtocolAddress( kTurnUdpIntAddr, PROTO_UDP), kRelayCredentials); port->SetIceProtocolType(ice_protocol_); return port; } RelayPort* CreateGturnPort(const SocketAddress& addr, ProtocolType int_proto, ProtocolType ext_proto) { RelayPort* port = CreateGturnPort(addr); SocketAddress addrs[] = { kRelayUdpIntAddr, kRelayTcpIntAddr, kRelaySslTcpIntAddr }; port->AddServerAddress(ProtocolAddress(addrs[int_proto], int_proto)); return port; } RelayPort* CreateGturnPort(const SocketAddress& addr) { RelayPort* port = RelayPort::Create(main_, &socket_factory_, &network_, addr.ipaddr(), 0, 0, username_, password_); // TODO: Add an external address for ext_proto, so that the // other side can connect to this port using a non-UDP protocol. port->SetIceProtocolType(ice_protocol_); return port; } talk_base::NATServer* CreateNatServer(const SocketAddress& addr, talk_base::NATType type) { return new talk_base::NATServer(type, ss_.get(), addr, ss_.get(), addr); } static const char* StunName(NATType type) { switch (type) { case NAT_OPEN_CONE: return "stun(open cone)"; case NAT_ADDR_RESTRICTED: return "stun(addr restricted)"; case NAT_PORT_RESTRICTED: return "stun(port restricted)"; case NAT_SYMMETRIC: return "stun(symmetric)"; default: return "stun(?)"; } } static const char* RelayName(RelayType type, ProtocolType proto) { if (type == RELAY_TURN) { switch (proto) { case PROTO_UDP: return "turn(udp)"; case PROTO_TCP: return "turn(tcp)"; case PROTO_SSLTCP: return "turn(ssltcp)"; default: return "turn(?)"; } } else { switch (proto) { case PROTO_UDP: return "gturn(udp)"; case PROTO_TCP: return "gturn(tcp)"; case PROTO_SSLTCP: return "gturn(ssltcp)"; default: return "gturn(?)"; } } } void TestCrossFamilyPorts(int type); // this does all the work void TestConnectivity(const char* name1, Port* port1, const char* name2, Port* port2, bool accept, bool same_addr1, bool same_addr2, bool possible); void SetIceProtocolType(cricket::IceProtocolType protocol) { ice_protocol_ = protocol; } IceMessage* CreateStunMessage(int type) { IceMessage* msg = new IceMessage(); msg->SetType(type); msg->SetTransactionID("TESTTESTTEST"); return msg; } IceMessage* CreateStunMessageWithUsername(int type, const std::string& username) { IceMessage* msg = CreateStunMessage(type); msg->AddAttribute( new StunByteStringAttribute(STUN_ATTR_USERNAME, username)); return msg; } TestPort* CreateTestPort(const talk_base::SocketAddress& addr, const std::string& username, const std::string& password) { TestPort* port = new TestPort(main_, "test", &socket_factory_, &network_, addr.ipaddr(), 0, 0, username, password); port->SignalRoleConflict.connect(this, &PortTest::OnRoleConflict); return port; } TestPort* CreateTestPort(const talk_base::SocketAddress& addr, const std::string& username, const std::string& password, cricket::IceProtocolType type, cricket::IceRole role, int tiebreaker) { TestPort* port = CreateTestPort(addr, username, password); port->SetIceProtocolType(type); port->SetIceRole(role); port->SetIceTiebreaker(tiebreaker); return port; } void OnRoleConflict(PortInterface* port) { role_conflict_ = true; } bool role_conflict() const { return role_conflict_; } talk_base::BasicPacketSocketFactory* nat_socket_factory1() { return &nat_socket_factory1_; } private: talk_base::Thread* main_; talk_base::scoped_ptr pss_; talk_base::scoped_ptr ss_; talk_base::SocketServerScope ss_scope_; talk_base::Network network_; talk_base::BasicPacketSocketFactory socket_factory_; talk_base::scoped_ptr nat_server1_; talk_base::scoped_ptr nat_server2_; talk_base::NATSocketFactory nat_factory1_; talk_base::NATSocketFactory nat_factory2_; talk_base::BasicPacketSocketFactory nat_socket_factory1_; talk_base::BasicPacketSocketFactory nat_socket_factory2_; TestStunServer stun_server_; TestTurnServer turn_server_; TestRelayServer relay_server_; std::string username_; std::string password_; cricket::IceProtocolType ice_protocol_; bool role_conflict_; }; void PortTest::TestConnectivity(const char* name1, Port* port1, const char* name2, Port* port2, bool accept, bool same_addr1, bool same_addr2, bool possible) { LOG(LS_INFO) << "Test: " << name1 << " to " << name2 << ": "; port1->set_component(cricket::ICE_CANDIDATE_COMPONENT_DEFAULT); port2->set_component(cricket::ICE_CANDIDATE_COMPONENT_DEFAULT); // Set up channels. TestChannel ch1(port1, port2); TestChannel ch2(port2, port1); EXPECT_EQ(0, ch1.complete_count()); EXPECT_EQ(0, ch2.complete_count()); // Acquire addresses. ch1.Start(); ch2.Start(); ASSERT_EQ_WAIT(1, ch1.complete_count(), kTimeout); ASSERT_EQ_WAIT(1, ch2.complete_count(), kTimeout); // Send a ping from src to dst. This may or may not make it. ch1.CreateConnection(); ASSERT_TRUE(ch1.conn() != NULL); EXPECT_TRUE_WAIT(ch1.conn()->connected(), kTimeout); // for TCP connect ch1.Ping(); WAIT(!ch2.remote_address().IsNil(), kTimeout); if (accept) { // We are able to send a ping from src to dst. This is the case when // sending to UDP ports and cone NATs. EXPECT_TRUE(ch1.remote_address().IsNil()); EXPECT_EQ(ch2.remote_fragment(), port1->username_fragment()); // Ensure the ping came from the same address used for src. // This is the case unless the source NAT was symmetric. if (same_addr1) EXPECT_EQ(ch2.remote_address(), GetAddress(port1)); EXPECT_TRUE(same_addr2); // Send a ping from dst to src. ch2.AcceptConnection(); ASSERT_TRUE(ch2.conn() != NULL); ch2.Ping(); EXPECT_EQ_WAIT(Connection::STATE_WRITABLE, ch2.conn()->write_state(), kTimeout); } else { // We can't send a ping from src to dst, so flip it around. This will happen // when the destination NAT is addr/port restricted or symmetric. EXPECT_TRUE(ch1.remote_address().IsNil()); EXPECT_TRUE(ch2.remote_address().IsNil()); // Send a ping from dst to src. Again, this may or may not make it. ch2.CreateConnection(); ASSERT_TRUE(ch2.conn() != NULL); ch2.Ping(); WAIT(ch2.conn()->write_state() == Connection::STATE_WRITABLE, kTimeout); if (same_addr1 && same_addr2) { // The new ping got back to the source. EXPECT_EQ(Connection::STATE_READABLE, ch1.conn()->read_state()); EXPECT_EQ(Connection::STATE_WRITABLE, ch2.conn()->write_state()); // First connection may not be writable if the first ping did not get // through. So we will have to do another. if (ch1.conn()->write_state() == Connection::STATE_WRITE_INIT) { ch1.Ping(); EXPECT_EQ_WAIT(Connection::STATE_WRITABLE, ch1.conn()->write_state(), kTimeout); } } else if (!same_addr1 && possible) { // The new ping went to the candidate address, but that address was bad. // This will happen when the source NAT is symmetric. EXPECT_TRUE(ch1.remote_address().IsNil()); EXPECT_TRUE(ch2.remote_address().IsNil()); // However, since we have now sent a ping to the source IP, we should be // able to get a ping from it. This gives us the real source address. ch1.Ping(); EXPECT_TRUE_WAIT(!ch2.remote_address().IsNil(), kTimeout); EXPECT_EQ(Connection::STATE_READ_INIT, ch2.conn()->read_state()); EXPECT_TRUE(ch1.remote_address().IsNil()); // Pick up the actual address and establish the connection. ch2.AcceptConnection(); ASSERT_TRUE(ch2.conn() != NULL); ch2.Ping(); EXPECT_EQ_WAIT(Connection::STATE_WRITABLE, ch2.conn()->write_state(), kTimeout); } else if (!same_addr2 && possible) { // The new ping came in, but from an unexpected address. This will happen // when the destination NAT is symmetric. EXPECT_FALSE(ch1.remote_address().IsNil()); EXPECT_EQ(Connection::STATE_READ_INIT, ch1.conn()->read_state()); // Update our address and complete the connection. ch1.AcceptConnection(); ch1.Ping(); EXPECT_EQ_WAIT(Connection::STATE_WRITABLE, ch1.conn()->write_state(), kTimeout); } else { // (!possible) // There should be s no way for the pings to reach each other. Check it. EXPECT_TRUE(ch1.remote_address().IsNil()); EXPECT_TRUE(ch2.remote_address().IsNil()); ch1.Ping(); WAIT(!ch2.remote_address().IsNil(), kTimeout); EXPECT_TRUE(ch1.remote_address().IsNil()); EXPECT_TRUE(ch2.remote_address().IsNil()); } } // Everything should be good, unless we know the situation is impossible. ASSERT_TRUE(ch1.conn() != NULL); ASSERT_TRUE(ch2.conn() != NULL); if (possible) { EXPECT_EQ(Connection::STATE_READABLE, ch1.conn()->read_state()); EXPECT_EQ(Connection::STATE_WRITABLE, ch1.conn()->write_state()); EXPECT_EQ(Connection::STATE_READABLE, ch2.conn()->read_state()); EXPECT_EQ(Connection::STATE_WRITABLE, ch2.conn()->write_state()); } else { EXPECT_NE(Connection::STATE_READABLE, ch1.conn()->read_state()); EXPECT_NE(Connection::STATE_WRITABLE, ch1.conn()->write_state()); EXPECT_NE(Connection::STATE_READABLE, ch2.conn()->read_state()); EXPECT_NE(Connection::STATE_WRITABLE, ch2.conn()->write_state()); } // Tear down and ensure that goes smoothly. ch1.Stop(); ch2.Stop(); EXPECT_TRUE_WAIT(ch1.conn() == NULL, kTimeout); EXPECT_TRUE_WAIT(ch2.conn() == NULL, kTimeout); } class FakePacketSocketFactory : public talk_base::PacketSocketFactory { public: FakePacketSocketFactory() : next_udp_socket_(NULL), next_server_tcp_socket_(NULL), next_client_tcp_socket_(NULL) { } virtual ~FakePacketSocketFactory() { } virtual AsyncPacketSocket* CreateUdpSocket( const SocketAddress& address, int min_port, int max_port) { EXPECT_TRUE(next_udp_socket_ != NULL); AsyncPacketSocket* result = next_udp_socket_; next_udp_socket_ = NULL; return result; } virtual AsyncPacketSocket* CreateServerTcpSocket( const SocketAddress& local_address, int min_port, int max_port, int opts) { EXPECT_TRUE(next_server_tcp_socket_ != NULL); AsyncPacketSocket* result = next_server_tcp_socket_; next_server_tcp_socket_ = NULL; return result; } // TODO: |proxy_info| and |user_agent| should be set // per-factory and not when socket is created. virtual AsyncPacketSocket* CreateClientTcpSocket( const SocketAddress& local_address, const SocketAddress& remote_address, const talk_base::ProxyInfo& proxy_info, const std::string& user_agent, int opts) { EXPECT_TRUE(next_client_tcp_socket_ != NULL); AsyncPacketSocket* result = next_client_tcp_socket_; next_client_tcp_socket_ = NULL; return result; } void set_next_udp_socket(AsyncPacketSocket* next_udp_socket) { next_udp_socket_ = next_udp_socket; } void set_next_server_tcp_socket(AsyncPacketSocket* next_server_tcp_socket) { next_server_tcp_socket_ = next_server_tcp_socket; } void set_next_client_tcp_socket(AsyncPacketSocket* next_client_tcp_socket) { next_client_tcp_socket_ = next_client_tcp_socket; } private: AsyncPacketSocket* next_udp_socket_; AsyncPacketSocket* next_server_tcp_socket_; AsyncPacketSocket* next_client_tcp_socket_; }; class FakeAsyncPacketSocket : public AsyncPacketSocket { public: // Returns current local address. Address may be set to NULL if the // socket is not bound yet (GetState() returns STATE_BINDING). virtual SocketAddress GetLocalAddress() const { return SocketAddress(); } // Returns remote address. Returns zeroes if this is not a client TCP socket. virtual SocketAddress GetRemoteAddress() const { return SocketAddress(); } // Send a packet. virtual int Send(const void *pv, size_t cb) { return static_cast(cb); } virtual int SendTo(const void *pv, size_t cb, const SocketAddress& addr) { return static_cast(cb); } virtual int Close() { return 0; } virtual State GetState() const { return state_; } virtual int GetOption(Socket::Option opt, int* value) { return 0; } virtual int SetOption(Socket::Option opt, int value) { return 0; } virtual int GetError() const { return 0; } virtual void SetError(int error) { } void set_state(State state) { state_ = state; } private: State state_; }; // Local -> XXXX TEST_F(PortTest, TestLocalToLocal) { TestLocalToLocal(); } TEST_F(PortTest, TestLocalToConeNat) { TestLocalToStun(NAT_OPEN_CONE); } TEST_F(PortTest, TestLocalToARNat) { TestLocalToStun(NAT_ADDR_RESTRICTED); } TEST_F(PortTest, TestLocalToPRNat) { TestLocalToStun(NAT_PORT_RESTRICTED); } TEST_F(PortTest, TestLocalToSymNat) { TestLocalToStun(NAT_SYMMETRIC); } TEST_F(PortTest, TestLocalToTurn) { TestLocalToRelay(RELAY_TURN, PROTO_UDP); } TEST_F(PortTest, TestLocalToGturn) { TestLocalToRelay(RELAY_GTURN, PROTO_UDP); } TEST_F(PortTest, TestLocalToTcpGturn) { TestLocalToRelay(RELAY_GTURN, PROTO_TCP); } TEST_F(PortTest, TestLocalToSslTcpGturn) { TestLocalToRelay(RELAY_GTURN, PROTO_SSLTCP); } // Cone NAT -> XXXX TEST_F(PortTest, TestConeNatToLocal) { TestStunToLocal(NAT_OPEN_CONE); } TEST_F(PortTest, TestConeNatToConeNat) { TestStunToStun(NAT_OPEN_CONE, NAT_OPEN_CONE); } TEST_F(PortTest, TestConeNatToARNat) { TestStunToStun(NAT_OPEN_CONE, NAT_ADDR_RESTRICTED); } TEST_F(PortTest, TestConeNatToPRNat) { TestStunToStun(NAT_OPEN_CONE, NAT_PORT_RESTRICTED); } TEST_F(PortTest, TestConeNatToSymNat) { TestStunToStun(NAT_OPEN_CONE, NAT_SYMMETRIC); } TEST_F(PortTest, TestConeNatToTurn) { TestStunToRelay(NAT_OPEN_CONE, RELAY_TURN, PROTO_UDP); } TEST_F(PortTest, TestConeNatToGturn) { TestStunToRelay(NAT_OPEN_CONE, RELAY_GTURN, PROTO_UDP); } TEST_F(PortTest, TestConeNatToTcpGturn) { TestStunToRelay(NAT_OPEN_CONE, RELAY_GTURN, PROTO_TCP); } // Address-restricted NAT -> XXXX TEST_F(PortTest, TestARNatToLocal) { TestStunToLocal(NAT_ADDR_RESTRICTED); } TEST_F(PortTest, TestARNatToConeNat) { TestStunToStun(NAT_ADDR_RESTRICTED, NAT_OPEN_CONE); } TEST_F(PortTest, TestARNatToARNat) { TestStunToStun(NAT_ADDR_RESTRICTED, NAT_ADDR_RESTRICTED); } TEST_F(PortTest, TestARNatToPRNat) { TestStunToStun(NAT_ADDR_RESTRICTED, NAT_PORT_RESTRICTED); } TEST_F(PortTest, TestARNatToSymNat) { TestStunToStun(NAT_ADDR_RESTRICTED, NAT_SYMMETRIC); } TEST_F(PortTest, TestARNatToTurn) { TestStunToRelay(NAT_ADDR_RESTRICTED, RELAY_TURN, PROTO_UDP); } TEST_F(PortTest, TestARNatToGturn) { TestStunToRelay(NAT_ADDR_RESTRICTED, RELAY_GTURN, PROTO_UDP); } TEST_F(PortTest, TestARNATNatToTcpGturn) { TestStunToRelay(NAT_ADDR_RESTRICTED, RELAY_GTURN, PROTO_TCP); } // Port-restricted NAT -> XXXX TEST_F(PortTest, TestPRNatToLocal) { TestStunToLocal(NAT_PORT_RESTRICTED); } TEST_F(PortTest, TestPRNatToConeNat) { TestStunToStun(NAT_PORT_RESTRICTED, NAT_OPEN_CONE); } TEST_F(PortTest, TestPRNatToARNat) { TestStunToStun(NAT_PORT_RESTRICTED, NAT_ADDR_RESTRICTED); } TEST_F(PortTest, TestPRNatToPRNat) { TestStunToStun(NAT_PORT_RESTRICTED, NAT_PORT_RESTRICTED); } TEST_F(PortTest, TestPRNatToSymNat) { // Will "fail" TestStunToStun(NAT_PORT_RESTRICTED, NAT_SYMMETRIC); } TEST_F(PortTest, TestPRNatToTurn) { TestStunToRelay(NAT_PORT_RESTRICTED, RELAY_TURN, PROTO_UDP); } TEST_F(PortTest, TestPRNatToGturn) { TestStunToRelay(NAT_PORT_RESTRICTED, RELAY_GTURN, PROTO_UDP); } TEST_F(PortTest, TestPRNatToTcpGturn) { TestStunToRelay(NAT_PORT_RESTRICTED, RELAY_GTURN, PROTO_TCP); } // Symmetric NAT -> XXXX TEST_F(PortTest, TestSymNatToLocal) { TestStunToLocal(NAT_SYMMETRIC); } TEST_F(PortTest, TestSymNatToConeNat) { TestStunToStun(NAT_SYMMETRIC, NAT_OPEN_CONE); } TEST_F(PortTest, TestSymNatToARNat) { TestStunToStun(NAT_SYMMETRIC, NAT_ADDR_RESTRICTED); } TEST_F(PortTest, TestSymNatToPRNat) { // Will "fail" TestStunToStun(NAT_SYMMETRIC, NAT_PORT_RESTRICTED); } TEST_F(PortTest, TestSymNatToSymNat) { // Will "fail" TestStunToStun(NAT_SYMMETRIC, NAT_SYMMETRIC); } TEST_F(PortTest, TestSymNatToTurn) { TestStunToRelay(NAT_SYMMETRIC, RELAY_TURN, PROTO_UDP); } TEST_F(PortTest, TestSymNatToGturn) { TestStunToRelay(NAT_SYMMETRIC, RELAY_GTURN, PROTO_UDP); } TEST_F(PortTest, TestSymNatToTcpGturn) { TestStunToRelay(NAT_SYMMETRIC, RELAY_GTURN, PROTO_TCP); } // Outbound TCP -> XXXX TEST_F(PortTest, TestTcpToTcp) { TestTcpToTcp(); } /* TODO: Enable these once testrelayserver can accept external TCP. TEST_F(PortTest, TestTcpToTcpRelay) { TestTcpToRelay(PROTO_TCP); } TEST_F(PortTest, TestTcpToSslTcpRelay) { TestTcpToRelay(PROTO_SSLTCP); } */ // Outbound SSLTCP -> XXXX /* TODO: Enable these once testrelayserver can accept external SSL. TEST_F(PortTest, TestSslTcpToTcpRelay) { TestSslTcpToRelay(PROTO_TCP); } TEST_F(PortTest, TestSslTcpToSslTcpRelay) { TestSslTcpToRelay(PROTO_SSLTCP); } */ // This test case verifies standard ICE features in STUN messages. Currently it // verifies Message Integrity attribute in STUN messages and username in STUN // binding request will have colon (":") between remote and local username. TEST_F(PortTest, TestLocalToLocalAsIce) { SetIceProtocolType(cricket::ICEPROTO_RFC5245); UDPPort* port1 = CreateUdpPort(kLocalAddr1); port1->SetIceRole(cricket::ICEROLE_CONTROLLING); port1->SetIceTiebreaker(kTiebreaker1); ASSERT_EQ(cricket::ICEPROTO_RFC5245, port1->IceProtocol()); UDPPort* port2 = CreateUdpPort(kLocalAddr2); port2->SetIceRole(cricket::ICEROLE_CONTROLLED); port2->SetIceTiebreaker(kTiebreaker2); ASSERT_EQ(cricket::ICEPROTO_RFC5245, port2->IceProtocol()); // Same parameters as TestLocalToLocal above. TestConnectivity("udp", port1, "udp", port2, true, true, true, true); } // This test is trying to validate a successful and failure scenario in a // loopback test when protocol is RFC5245. For success IceTiebreaker, username // should remain equal to the request generated by the port and role of port // must be in controlling. TEST_F(PortTest, TestLoopbackCallAsIce) { talk_base::scoped_ptr lport( CreateTestPort(kLocalAddr1, "lfrag", "lpass")); lport->SetIceProtocolType(ICEPROTO_RFC5245); lport->SetIceRole(cricket::ICEROLE_CONTROLLING); lport->SetIceTiebreaker(kTiebreaker1); lport->PrepareAddress(); ASSERT_FALSE(lport->Candidates().empty()); Connection* conn = lport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE); conn->Ping(0); ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, 1000); IceMessage* msg = lport->last_stun_msg(); EXPECT_EQ(STUN_BINDING_REQUEST, msg->type()); conn->OnReadPacket(lport->last_stun_buf()->Data(), lport->last_stun_buf()->Length()); ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, 1000); msg = lport->last_stun_msg(); EXPECT_EQ(STUN_BINDING_RESPONSE, msg->type()); // If the tiebreaker value is different from port, we expect a error // response. lport->Reset(); lport->AddCandidateAddress(kLocalAddr2); // Creating a different connection as |conn| is in STATE_READABLE. Connection* conn1 = lport->CreateConnection(lport->Candidates()[1], Port::ORIGIN_MESSAGE); conn1->Ping(0); ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, 1000); msg = lport->last_stun_msg(); EXPECT_EQ(STUN_BINDING_REQUEST, msg->type()); talk_base::scoped_ptr modified_req( CreateStunMessage(STUN_BINDING_REQUEST)); const StunByteStringAttribute* username_attr = msg->GetByteString( STUN_ATTR_USERNAME); modified_req->AddAttribute(new StunByteStringAttribute( STUN_ATTR_USERNAME, username_attr->GetString())); // To make sure we receive error response, adding tiebreaker less than // what's present in request. modified_req->AddAttribute(new StunUInt64Attribute( STUN_ATTR_ICE_CONTROLLING, kTiebreaker1 - 1)); modified_req->AddMessageIntegrity("lpass"); modified_req->AddFingerprint(); lport->Reset(); talk_base::scoped_ptr buf(new ByteBuffer()); WriteStunMessage(modified_req.get(), buf.get()); conn1->OnReadPacket(buf->Data(), buf->Length()); ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, 1000); msg = lport->last_stun_msg(); EXPECT_EQ(STUN_BINDING_ERROR_RESPONSE, msg->type()); } // This test verifies role conflict signal is received when there is // conflict in the role. In this case both ports are in controlling and // |rport| has higher tiebreaker value than |lport|. Since |lport| has lower // value of tiebreaker, when it receives ping request from |rport| it will // send role conflict signal. TEST_F(PortTest, TestIceRoleConflict) { talk_base::scoped_ptr lport( CreateTestPort(kLocalAddr1, "lfrag", "lpass")); lport->SetIceProtocolType(ICEPROTO_RFC5245); lport->SetIceRole(cricket::ICEROLE_CONTROLLING); lport->SetIceTiebreaker(kTiebreaker1); talk_base::scoped_ptr rport( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); rport->SetIceProtocolType(ICEPROTO_RFC5245); rport->SetIceRole(cricket::ICEROLE_CONTROLLING); rport->SetIceTiebreaker(kTiebreaker2); lport->PrepareAddress(); rport->PrepareAddress(); ASSERT_FALSE(lport->Candidates().empty()); ASSERT_FALSE(rport->Candidates().empty()); Connection* lconn = lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE); Connection* rconn = rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE); rconn->Ping(0); ASSERT_TRUE_WAIT(rport->last_stun_msg() != NULL, 1000); IceMessage* msg = rport->last_stun_msg(); EXPECT_EQ(STUN_BINDING_REQUEST, msg->type()); // Send rport binding request to lport. lconn->OnReadPacket(rport->last_stun_buf()->Data(), rport->last_stun_buf()->Length()); ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, 1000); EXPECT_EQ(STUN_BINDING_RESPONSE, lport->last_stun_msg()->type()); EXPECT_TRUE(role_conflict()); } TEST_F(PortTest, TestTcpNoDelay) { TCPPort* port1 = CreateTcpPort(kLocalAddr1); int option_value = -1; int success = port1->GetOption(talk_base::Socket::OPT_NODELAY, &option_value); ASSERT_EQ(0, success); // GetOption() should complete successfully w/ 0 ASSERT_EQ(1, option_value); delete port1; } TEST_F(PortTest, TestDelayedBindingUdp) { FakeAsyncPacketSocket *socket = new FakeAsyncPacketSocket(); FakePacketSocketFactory socket_factory; socket_factory.set_next_udp_socket(socket); scoped_ptr port( CreateUdpPort(kLocalAddr1, &socket_factory)); socket->set_state(AsyncPacketSocket::STATE_BINDING); port->PrepareAddress(); EXPECT_EQ(0U, port->Candidates().size()); socket->SignalAddressReady(socket, kLocalAddr2); EXPECT_EQ(1U, port->Candidates().size()); } TEST_F(PortTest, TestDelayedBindingTcp) { FakeAsyncPacketSocket *socket = new FakeAsyncPacketSocket(); FakePacketSocketFactory socket_factory; socket_factory.set_next_server_tcp_socket(socket); scoped_ptr port( CreateTcpPort(kLocalAddr1, &socket_factory)); socket->set_state(AsyncPacketSocket::STATE_BINDING); port->PrepareAddress(); EXPECT_EQ(0U, port->Candidates().size()); socket->SignalAddressReady(socket, kLocalAddr2); EXPECT_EQ(1U, port->Candidates().size()); } void PortTest::TestCrossFamilyPorts(int type) { FakePacketSocketFactory factory; scoped_ptr ports[4]; SocketAddress addresses[4] = {SocketAddress("192.168.1.3", 0), SocketAddress("192.168.1.4", 0), SocketAddress("2001:db8::1", 0), SocketAddress("2001:db8::2", 0)}; for (int i = 0; i < 4; i++) { FakeAsyncPacketSocket *socket = new FakeAsyncPacketSocket(); if (type == SOCK_DGRAM) { factory.set_next_udp_socket(socket); ports[i].reset(CreateUdpPort(addresses[i], &factory)); } else if (type == SOCK_STREAM) { factory.set_next_server_tcp_socket(socket); ports[i].reset(CreateTcpPort(addresses[i], &factory)); } socket->set_state(AsyncPacketSocket::STATE_BINDING); socket->SignalAddressReady(socket, addresses[i]); ports[i]->PrepareAddress(); } // IPv4 Port, connects to IPv6 candidate and then to IPv4 candidate. if (type == SOCK_STREAM) { FakeAsyncPacketSocket* clientsocket = new FakeAsyncPacketSocket(); factory.set_next_client_tcp_socket(clientsocket); } Connection* c = ports[0]->CreateConnection(GetCandidate(ports[2].get()), Port::ORIGIN_MESSAGE); EXPECT_TRUE(NULL == c); EXPECT_EQ(0U, ports[0]->connections().size()); c = ports[0]->CreateConnection(GetCandidate(ports[1].get()), Port::ORIGIN_MESSAGE); EXPECT_FALSE(NULL == c); EXPECT_EQ(1U, ports[0]->connections().size()); // IPv6 Port, connects to IPv4 candidate and to IPv6 candidate. if (type == SOCK_STREAM) { FakeAsyncPacketSocket* clientsocket = new FakeAsyncPacketSocket(); factory.set_next_client_tcp_socket(clientsocket); } c = ports[2]->CreateConnection(GetCandidate(ports[0].get()), Port::ORIGIN_MESSAGE); EXPECT_TRUE(NULL == c); EXPECT_EQ(0U, ports[2]->connections().size()); c = ports[2]->CreateConnection(GetCandidate(ports[3].get()), Port::ORIGIN_MESSAGE); EXPECT_FALSE(NULL == c); EXPECT_EQ(1U, ports[2]->connections().size()); } TEST_F(PortTest, TestSkipCrossFamilyTcp) { TestCrossFamilyPorts(SOCK_STREAM); } TEST_F(PortTest, TestSkipCrossFamilyUdp) { TestCrossFamilyPorts(SOCK_DGRAM); } // Test sending STUN messages in GICE format. TEST_F(PortTest, TestSendStunMessageAsGice) { talk_base::scoped_ptr lport( CreateTestPort(kLocalAddr1, "lfrag", "lpass")); talk_base::scoped_ptr rport( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); lport->SetIceProtocolType(ICEPROTO_GOOGLE); rport->SetIceProtocolType(ICEPROTO_GOOGLE); // Send a fake ping from lport to rport. lport->PrepareAddress(); rport->PrepareAddress(); ASSERT_FALSE(rport->Candidates().empty()); Connection* conn = lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE); rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE); conn->Ping(0); // Check that it's a proper BINDING-REQUEST. ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, 1000); IceMessage* msg = lport->last_stun_msg(); EXPECT_EQ(STUN_BINDING_REQUEST, msg->type()); EXPECT_FALSE(msg->IsLegacy()); const StunByteStringAttribute* username_attr = msg->GetByteString( STUN_ATTR_USERNAME); ASSERT_TRUE(username_attr != NULL); EXPECT_EQ("rfraglfrag", username_attr->GetString()); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_PRIORITY) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_FINGERPRINT) == NULL); // Save a copy of the BINDING-REQUEST for use below. talk_base::scoped_ptr request(CopyStunMessage(msg)); // Respond with a BINDING-RESPONSE. rport->SendBindingResponse(request.get(), lport->Candidates()[0].address()); msg = rport->last_stun_msg(); ASSERT_TRUE(msg != NULL); EXPECT_EQ(STUN_BINDING_RESPONSE, msg->type()); EXPECT_FALSE(msg->IsLegacy()); username_attr = msg->GetByteString(STUN_ATTR_USERNAME); ASSERT_TRUE(username_attr != NULL); // GICE has a username in the response. EXPECT_EQ("rfraglfrag", username_attr->GetString()); const StunAddressAttribute* addr_attr = msg->GetAddress( STUN_ATTR_MAPPED_ADDRESS); ASSERT_TRUE(addr_attr != NULL); EXPECT_EQ(lport->Candidates()[0].address(), addr_attr->GetAddress()); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_XOR_MAPPED_ADDRESS) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_PRIORITY) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_FINGERPRINT) == NULL); // Respond with a BINDING-ERROR-RESPONSE. This wouldn't happen in real life, // but we can do it here. rport->SendBindingErrorResponse(request.get(), rport->Candidates()[0].address(), STUN_ERROR_SERVER_ERROR, STUN_ERROR_REASON_SERVER_ERROR); msg = rport->last_stun_msg(); ASSERT_TRUE(msg != NULL); EXPECT_EQ(STUN_BINDING_ERROR_RESPONSE, msg->type()); EXPECT_FALSE(msg->IsLegacy()); username_attr = msg->GetByteString(STUN_ATTR_USERNAME); ASSERT_TRUE(username_attr != NULL); // GICE has a username in the response. EXPECT_EQ("rfraglfrag", username_attr->GetString()); const StunErrorCodeAttribute* error_attr = msg->GetErrorCode(); ASSERT_TRUE(error_attr != NULL); // The GICE wire format for error codes is incorrect. EXPECT_EQ(STUN_ERROR_SERVER_ERROR_AS_GICE, error_attr->code()); EXPECT_EQ(STUN_ERROR_SERVER_ERROR / 256, error_attr->eclass()); EXPECT_EQ(STUN_ERROR_SERVER_ERROR % 256, error_attr->number()); EXPECT_EQ(std::string(STUN_ERROR_REASON_SERVER_ERROR), error_attr->reason()); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_PRIORITY) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_FINGERPRINT) == NULL); } // Test sending STUN messages in ICE format. TEST_F(PortTest, TestSendStunMessageAsIce) { talk_base::scoped_ptr lport( CreateTestPort(kLocalAddr1, "lfrag", "lpass")); talk_base::scoped_ptr rport( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); lport->SetIceProtocolType(ICEPROTO_RFC5245); lport->SetIceRole(cricket::ICEROLE_CONTROLLING); lport->SetIceTiebreaker(kTiebreaker1); rport->SetIceProtocolType(ICEPROTO_RFC5245); rport->SetIceRole(cricket::ICEROLE_CONTROLLED); rport->SetIceTiebreaker(kTiebreaker2); // Send a fake ping from lport to rport. lport->PrepareAddress(); rport->PrepareAddress(); ASSERT_FALSE(rport->Candidates().empty()); Connection* lconn = lport->CreateConnection( rport->Candidates()[0], Port::ORIGIN_MESSAGE); Connection* rconn = rport->CreateConnection( lport->Candidates()[0], Port::ORIGIN_MESSAGE); lconn->Ping(0); // Check that it's a proper BINDING-REQUEST. ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, 1000); IceMessage* msg = lport->last_stun_msg(); EXPECT_EQ(STUN_BINDING_REQUEST, msg->type()); EXPECT_FALSE(msg->IsLegacy()); const StunByteStringAttribute* username_attr = msg->GetByteString(STUN_ATTR_USERNAME); ASSERT_TRUE(username_attr != NULL); const StunUInt32Attribute* priority_attr = msg->GetUInt32(STUN_ATTR_PRIORITY); ASSERT_TRUE(priority_attr != NULL); EXPECT_EQ(kDefaultPrflxPriority, priority_attr->value()); EXPECT_EQ("rfrag:lfrag", username_attr->GetString()); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY) != NULL); EXPECT_TRUE(StunMessage::ValidateMessageIntegrity( lport->last_stun_buf()->Data(), lport->last_stun_buf()->Length(), "rpass")); const StunUInt64Attribute* ice_controlling_attr = msg->GetUInt64(STUN_ATTR_ICE_CONTROLLING); ASSERT_TRUE(ice_controlling_attr != NULL); EXPECT_EQ(lport->IceTiebreaker(), ice_controlling_attr->value()); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_ICE_CONTROLLED) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) != NULL); EXPECT_TRUE(msg->GetUInt32(STUN_ATTR_FINGERPRINT) != NULL); EXPECT_TRUE(StunMessage::ValidateFingerprint( lport->last_stun_buf()->Data(), lport->last_stun_buf()->Length())); // Request should not include ping count. ASSERT_TRUE(msg->GetUInt32(STUN_ATTR_RETRANSMIT_COUNT) == NULL); // Save a copy of the BINDING-REQUEST for use below. talk_base::scoped_ptr request(CopyStunMessage(msg)); // Respond with a BINDING-RESPONSE. rport->SendBindingResponse(request.get(), lport->Candidates()[0].address()); msg = rport->last_stun_msg(); ASSERT_TRUE(msg != NULL); EXPECT_EQ(STUN_BINDING_RESPONSE, msg->type()); EXPECT_FALSE(msg->IsLegacy()); const StunAddressAttribute* addr_attr = msg->GetAddress( STUN_ATTR_XOR_MAPPED_ADDRESS); ASSERT_TRUE(addr_attr != NULL); EXPECT_EQ(lport->Candidates()[0].address(), addr_attr->GetAddress()); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY) != NULL); EXPECT_TRUE(StunMessage::ValidateMessageIntegrity( rport->last_stun_buf()->Data(), rport->last_stun_buf()->Length(), "rpass")); EXPECT_TRUE(msg->GetUInt32(STUN_ATTR_FINGERPRINT) != NULL); EXPECT_TRUE(StunMessage::ValidateFingerprint( lport->last_stun_buf()->Data(), lport->last_stun_buf()->Length())); // No USERNAME or PRIORITY in ICE responses. EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USERNAME) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_PRIORITY) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MAPPED_ADDRESS) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_ICE_CONTROLLING) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_ICE_CONTROLLED) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) == NULL); // Response should not include ping count. ASSERT_TRUE(msg->GetUInt32(STUN_ATTR_RETRANSMIT_COUNT) == NULL); // Respond with a BINDING-ERROR-RESPONSE. This wouldn't happen in real life, // but we can do it here. rport->SendBindingErrorResponse(request.get(), lport->Candidates()[0].address(), STUN_ERROR_SERVER_ERROR, STUN_ERROR_REASON_SERVER_ERROR); msg = rport->last_stun_msg(); ASSERT_TRUE(msg != NULL); EXPECT_EQ(STUN_BINDING_ERROR_RESPONSE, msg->type()); EXPECT_FALSE(msg->IsLegacy()); const StunErrorCodeAttribute* error_attr = msg->GetErrorCode(); ASSERT_TRUE(error_attr != NULL); EXPECT_EQ(STUN_ERROR_SERVER_ERROR, error_attr->code()); EXPECT_EQ(std::string(STUN_ERROR_REASON_SERVER_ERROR), error_attr->reason()); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY) != NULL); EXPECT_TRUE(StunMessage::ValidateMessageIntegrity( rport->last_stun_buf()->Data(), rport->last_stun_buf()->Length(), "rpass")); EXPECT_TRUE(msg->GetUInt32(STUN_ATTR_FINGERPRINT) != NULL); EXPECT_TRUE(StunMessage::ValidateFingerprint( lport->last_stun_buf()->Data(), lport->last_stun_buf()->Length())); // No USERNAME with ICE. EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USERNAME) == NULL); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_PRIORITY) == NULL); // Testing STUN binding requests from rport --> lport, having ICE_CONTROLLED // and (incremented) RETRANSMIT_COUNT attributes. rport->Reset(); rport->set_send_retransmit_count_attribute(true); rconn->Ping(0); rconn->Ping(0); rconn->Ping(0); ASSERT_TRUE_WAIT(rport->last_stun_msg() != NULL, 1000); msg = rport->last_stun_msg(); EXPECT_EQ(STUN_BINDING_REQUEST, msg->type()); const StunUInt64Attribute* ice_controlled_attr = msg->GetUInt64(STUN_ATTR_ICE_CONTROLLED); ASSERT_TRUE(ice_controlled_attr != NULL); EXPECT_EQ(rport->IceTiebreaker(), ice_controlled_attr->value()); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) == NULL); // Request should include ping count. const StunUInt32Attribute* retransmit_attr = msg->GetUInt32(STUN_ATTR_RETRANSMIT_COUNT); ASSERT_TRUE(retransmit_attr != NULL); EXPECT_EQ(2U, retransmit_attr->value()); // Respond with a BINDING-RESPONSE. request.reset(CopyStunMessage(msg)); lport->SendBindingResponse(request.get(), rport->Candidates()[0].address()); msg = lport->last_stun_msg(); // Response should include same ping count. retransmit_attr = msg->GetUInt32(STUN_ATTR_RETRANSMIT_COUNT); ASSERT_TRUE(retransmit_attr != NULL); EXPECT_EQ(2U, retransmit_attr->value()); } TEST_F(PortTest, TestUseCandidateAttribute) { talk_base::scoped_ptr lport( CreateTestPort(kLocalAddr1, "lfrag", "lpass")); talk_base::scoped_ptr rport( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); lport->SetIceProtocolType(ICEPROTO_RFC5245); lport->SetIceRole(cricket::ICEROLE_CONTROLLING); lport->SetIceTiebreaker(kTiebreaker1); rport->SetIceProtocolType(ICEPROTO_RFC5245); rport->SetIceRole(cricket::ICEROLE_CONTROLLED); rport->SetIceTiebreaker(kTiebreaker2); // Send a fake ping from lport to rport. lport->PrepareAddress(); rport->PrepareAddress(); ASSERT_FALSE(rport->Candidates().empty()); Connection* lconn = lport->CreateConnection( rport->Candidates()[0], Port::ORIGIN_MESSAGE); lconn->Ping(0); ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, 1000); IceMessage* msg = lport->last_stun_msg(); const StunUInt64Attribute* ice_controlling_attr = msg->GetUInt64(STUN_ATTR_ICE_CONTROLLING); ASSERT_TRUE(ice_controlling_attr != NULL); const StunByteStringAttribute* use_candidate_attr = msg->GetByteString( STUN_ATTR_USE_CANDIDATE); ASSERT_TRUE(use_candidate_attr != NULL); } // Test handling STUN messages in GICE format. TEST_F(PortTest, TestHandleStunMessageAsGice) { // Our port will act as the "remote" port. talk_base::scoped_ptr port( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); port->SetIceProtocolType(ICEPROTO_GOOGLE); talk_base::scoped_ptr in_msg, out_msg; talk_base::scoped_ptr buf(new ByteBuffer()); talk_base::SocketAddress addr(kLocalAddr1); std::string username; // BINDING-REQUEST from local to remote with valid GICE username and no M-I. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfraglfrag")); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() != NULL); // Succeeds, since this is GICE. EXPECT_EQ("lfrag", username); // Add M-I; should be ignored and rest of message parsed normally. in_msg->AddMessageIntegrity("password"); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() != NULL); EXPECT_EQ("lfrag", username); // BINDING-RESPONSE with username, as done in GICE. Should succeed. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_RESPONSE, "rfraglfrag")); in_msg->AddAttribute( new StunAddressAttribute(STUN_ATTR_MAPPED_ADDRESS, kLocalAddr2)); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() != NULL); EXPECT_EQ("", username); // BINDING-RESPONSE without username. Should be tolerated as well. in_msg.reset(CreateStunMessage(STUN_BINDING_RESPONSE)); in_msg->AddAttribute( new StunAddressAttribute(STUN_ATTR_MAPPED_ADDRESS, kLocalAddr2)); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() != NULL); EXPECT_EQ("", username); // BINDING-ERROR-RESPONSE with username and error code. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_ERROR_RESPONSE, "rfraglfrag")); in_msg->AddAttribute(new StunErrorCodeAttribute(STUN_ATTR_ERROR_CODE, STUN_ERROR_SERVER_ERROR_AS_GICE, STUN_ERROR_REASON_SERVER_ERROR)); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); ASSERT_TRUE(out_msg.get() != NULL); EXPECT_EQ("", username); ASSERT_TRUE(out_msg->GetErrorCode() != NULL); // GetStunMessage doesn't unmunge the GICE error code (happens downstream). EXPECT_EQ(STUN_ERROR_SERVER_ERROR_AS_GICE, out_msg->GetErrorCode()->code()); EXPECT_EQ(std::string(STUN_ERROR_REASON_SERVER_ERROR), out_msg->GetErrorCode()->reason()); } // Test handling STUN messages in ICE format. TEST_F(PortTest, TestHandleStunMessageAsIce) { // Our port will act as the "remote" port. talk_base::scoped_ptr port( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); port->SetIceProtocolType(ICEPROTO_RFC5245); talk_base::scoped_ptr in_msg, out_msg; talk_base::scoped_ptr buf(new ByteBuffer()); talk_base::SocketAddress addr(kLocalAddr1); std::string username; // BINDING-REQUEST from local to remote with valid ICE username, // MESSAGE-INTEGRITY, and FINGERPRINT. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfrag:lfrag")); in_msg->AddMessageIntegrity("rpass"); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() != NULL); EXPECT_EQ("lfrag", username); // BINDING-RESPONSE without username, with MESSAGE-INTEGRITY and FINGERPRINT. in_msg.reset(CreateStunMessage(STUN_BINDING_RESPONSE)); in_msg->AddAttribute( new StunXorAddressAttribute(STUN_ATTR_XOR_MAPPED_ADDRESS, kLocalAddr2)); in_msg->AddMessageIntegrity("rpass"); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() != NULL); EXPECT_EQ("", username); // BINDING-ERROR-RESPONSE without username, with error, M-I, and FINGERPRINT. in_msg.reset(CreateStunMessage(STUN_BINDING_ERROR_RESPONSE)); in_msg->AddAttribute(new StunErrorCodeAttribute(STUN_ATTR_ERROR_CODE, STUN_ERROR_SERVER_ERROR, STUN_ERROR_REASON_SERVER_ERROR)); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() != NULL); EXPECT_EQ("", username); ASSERT_TRUE(out_msg->GetErrorCode() != NULL); EXPECT_EQ(STUN_ERROR_SERVER_ERROR, out_msg->GetErrorCode()->code()); EXPECT_EQ(std::string(STUN_ERROR_REASON_SERVER_ERROR), out_msg->GetErrorCode()->reason()); } // Tests handling of GICE binding requests with missing or incorrect usernames. TEST_F(PortTest, TestHandleStunMessageAsGiceBadUsername) { talk_base::scoped_ptr port( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); port->SetIceProtocolType(ICEPROTO_GOOGLE); talk_base::scoped_ptr in_msg, out_msg; talk_base::scoped_ptr buf(new ByteBuffer()); talk_base::SocketAddress addr(kLocalAddr1); std::string username; // BINDING-REQUEST with no username. in_msg.reset(CreateStunMessage(STUN_BINDING_REQUEST)); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_BAD_REQUEST_AS_GICE, port->last_stun_error_code()); // BINDING-REQUEST with empty username. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "")); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_UNAUTHORIZED_AS_GICE, port->last_stun_error_code()); // BINDING-REQUEST with too-short username. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "lfra")); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_UNAUTHORIZED_AS_GICE, port->last_stun_error_code()); // BINDING-REQUEST with reversed username. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "lfragrfrag")); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_UNAUTHORIZED_AS_GICE, port->last_stun_error_code()); // BINDING-REQUEST with garbage username. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "abcdefgh")); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_UNAUTHORIZED_AS_GICE, port->last_stun_error_code()); } // Tests handling of ICE binding requests with missing or incorrect usernames. TEST_F(PortTest, TestHandleStunMessageAsIceBadUsername) { talk_base::scoped_ptr port( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); port->SetIceProtocolType(ICEPROTO_RFC5245); talk_base::scoped_ptr in_msg, out_msg; talk_base::scoped_ptr buf(new ByteBuffer()); talk_base::SocketAddress addr(kLocalAddr1); std::string username; // BINDING-REQUEST with no username. in_msg.reset(CreateStunMessage(STUN_BINDING_REQUEST)); in_msg->AddMessageIntegrity("rpass"); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_BAD_REQUEST, port->last_stun_error_code()); // BINDING-REQUEST with empty username. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "")); in_msg->AddMessageIntegrity("rpass"); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code()); // BINDING-REQUEST with too-short username. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfra")); in_msg->AddMessageIntegrity("rpass"); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code()); // BINDING-REQUEST with reversed username. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "lfrag:rfrag")); in_msg->AddMessageIntegrity("rpass"); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code()); // BINDING-REQUEST with garbage username. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "abcd:efgh")); in_msg->AddMessageIntegrity("rpass"); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code()); } // Test handling STUN messages (as ICE) with missing or malformed M-I. TEST_F(PortTest, TestHandleStunMessageAsIceBadMessageIntegrity) { // Our port will act as the "remote" port. talk_base::scoped_ptr port( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); port->SetIceProtocolType(ICEPROTO_RFC5245); talk_base::scoped_ptr in_msg, out_msg; talk_base::scoped_ptr buf(new ByteBuffer()); talk_base::SocketAddress addr(kLocalAddr1); std::string username; // BINDING-REQUEST from local to remote with valid ICE username and // FINGERPRINT, but no MESSAGE-INTEGRITY. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfrag:lfrag")); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_BAD_REQUEST, port->last_stun_error_code()); // BINDING-REQUEST from local to remote with valid ICE username and // FINGERPRINT, but invalid MESSAGE-INTEGRITY. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfrag:lfrag")); in_msg->AddMessageIntegrity("invalid"); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() == NULL); EXPECT_EQ("", username); EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code()); // TODO: BINDING-RESPONSES and BINDING-ERROR-RESPONSES are checked // by the Connection, not the Port, since they require the remote username. // Change this test to pass in data via Connection::OnReadPacket instead. } // Test handling STUN messages (as ICE) with missing or malformed FINGERPRINT. TEST_F(PortTest, TestHandleStunMessageAsIceBadFingerprint) { // Our port will act as the "remote" port. talk_base::scoped_ptr port( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); port->SetIceProtocolType(ICEPROTO_RFC5245); talk_base::scoped_ptr in_msg, out_msg; talk_base::scoped_ptr buf(new ByteBuffer()); talk_base::SocketAddress addr(kLocalAddr1); std::string username; // BINDING-REQUEST from local to remote with valid ICE username and // MESSAGE-INTEGRITY, but no FINGERPRINT; GetStunMessage should fail. in_msg.reset(CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfrag:lfrag")); in_msg->AddMessageIntegrity("rpass"); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_EQ(0, port->last_stun_error_code()); // Now, add a fingerprint, but munge the message so it's not valid. in_msg->AddFingerprint(); in_msg->SetTransactionID("TESTTESTBADD"); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_EQ(0, port->last_stun_error_code()); // Valid BINDING-RESPONSE, except no FINGERPRINT. in_msg.reset(CreateStunMessage(STUN_BINDING_RESPONSE)); in_msg->AddAttribute( new StunXorAddressAttribute(STUN_ATTR_XOR_MAPPED_ADDRESS, kLocalAddr2)); in_msg->AddMessageIntegrity("rpass"); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_EQ(0, port->last_stun_error_code()); // Now, add a fingerprint, but munge the message so it's not valid. in_msg->AddFingerprint(); in_msg->SetTransactionID("TESTTESTBADD"); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_EQ(0, port->last_stun_error_code()); // Valid BINDING-ERROR-RESPONSE, except no FINGERPRINT. in_msg.reset(CreateStunMessage(STUN_BINDING_ERROR_RESPONSE)); in_msg->AddAttribute(new StunErrorCodeAttribute(STUN_ATTR_ERROR_CODE, STUN_ERROR_SERVER_ERROR, STUN_ERROR_REASON_SERVER_ERROR)); in_msg->AddMessageIntegrity("rpass"); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_EQ(0, port->last_stun_error_code()); // Now, add a fingerprint, but munge the message so it's not valid. in_msg->AddFingerprint(); in_msg->SetTransactionID("TESTTESTBADD"); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_EQ(0, port->last_stun_error_code()); } // Test handling of STUN binding indication messages (as ICE). STUN binding // indications are allowed only to the connection which is in read mode. TEST_F(PortTest, TestHandleStunBindingIndication) { talk_base::scoped_ptr lport( CreateTestPort(kLocalAddr2, "lfrag", "lpass")); lport->SetIceProtocolType(ICEPROTO_RFC5245); lport->SetIceRole(cricket::ICEROLE_CONTROLLING); lport->SetIceTiebreaker(kTiebreaker1); // Verifying encoding and decoding STUN indication message. talk_base::scoped_ptr in_msg, out_msg; talk_base::scoped_ptr buf(new ByteBuffer()); talk_base::SocketAddress addr(kLocalAddr1); std::string username; in_msg.reset(CreateStunMessage(STUN_BINDING_INDICATION)); in_msg->AddFingerprint(); WriteStunMessage(in_msg.get(), buf.get()); EXPECT_TRUE(lport->GetStunMessage(buf->Data(), buf->Length(), addr, out_msg.accept(), &username)); EXPECT_TRUE(out_msg.get() != NULL); EXPECT_EQ(out_msg->type(), STUN_BINDING_INDICATION); EXPECT_EQ("", username); // Verify connection can handle STUN indication and updates // last_ping_received. talk_base::scoped_ptr rport( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); rport->SetIceProtocolType(ICEPROTO_RFC5245); rport->SetIceRole(cricket::ICEROLE_CONTROLLED); rport->SetIceTiebreaker(kTiebreaker2); lport->PrepareAddress(); rport->PrepareAddress(); ASSERT_FALSE(lport->Candidates().empty()); ASSERT_FALSE(rport->Candidates().empty()); Connection* lconn = lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE); Connection* rconn = rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE); rconn->Ping(0); ASSERT_TRUE_WAIT(rport->last_stun_msg() != NULL, 1000); IceMessage* msg = rport->last_stun_msg(); EXPECT_EQ(STUN_BINDING_REQUEST, msg->type()); // Send rport binding request to lport. lconn->OnReadPacket(rport->last_stun_buf()->Data(), rport->last_stun_buf()->Length()); ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, 1000); EXPECT_EQ(STUN_BINDING_RESPONSE, lport->last_stun_msg()->type()); uint32 last_ping_received1 = lconn->last_ping_received(); // Adding a delay of 100ms. talk_base::Thread::Current()->ProcessMessages(100); // Pinging lconn using stun indication message. lconn->OnReadPacket(buf->Data(), buf->Length()); uint32 last_ping_received2 = lconn->last_ping_received(); EXPECT_GT(last_ping_received2, last_ping_received1); } TEST_F(PortTest, TestComputeCandidatePriority) { talk_base::scoped_ptr port( CreateTestPort(kLocalAddr1, "name", "pass")); port->set_type_preference(90); port->set_component(177); port->AddCandidateAddress(SocketAddress("192.168.1.4", 1234)); port->AddCandidateAddress(SocketAddress("2001:db8::1234", 1234)); port->AddCandidateAddress(SocketAddress("fc12:3456::1234", 1234)); port->AddCandidateAddress(SocketAddress("::ffff:192.168.1.4", 1234)); port->AddCandidateAddress(SocketAddress("::192.168.1.4", 1234)); port->AddCandidateAddress(SocketAddress("2002::1234:5678", 1234)); port->AddCandidateAddress(SocketAddress("2001::1234:5678", 1234)); port->AddCandidateAddress(SocketAddress("fecf::1234:5678", 1234)); port->AddCandidateAddress(SocketAddress("3ffe::1234:5678", 1234)); // These should all be: // (90 << 24) | ([rfc3484 pref value] << 8) | (256 - 177) uint32 expected_priority_v4 = 1509957199U; uint32 expected_priority_v6 = 1509959759U; uint32 expected_priority_ula = 1509962319U; uint32 expected_priority_v4mapped = expected_priority_v4; uint32 expected_priority_v4compat = 1509949775U; uint32 expected_priority_6to4 = 1509954639U; uint32 expected_priority_teredo = 1509952079U; uint32 expected_priority_sitelocal = 1509949775U; uint32 expected_priority_6bone = 1509949775U; ASSERT_EQ(expected_priority_v4, port->Candidates()[0].priority()); ASSERT_EQ(expected_priority_v6, port->Candidates()[1].priority()); ASSERT_EQ(expected_priority_ula, port->Candidates()[2].priority()); ASSERT_EQ(expected_priority_v4mapped, port->Candidates()[3].priority()); ASSERT_EQ(expected_priority_v4compat, port->Candidates()[4].priority()); ASSERT_EQ(expected_priority_6to4, port->Candidates()[5].priority()); ASSERT_EQ(expected_priority_teredo, port->Candidates()[6].priority()); ASSERT_EQ(expected_priority_sitelocal, port->Candidates()[7].priority()); ASSERT_EQ(expected_priority_6bone, port->Candidates()[8].priority()); } TEST_F(PortTest, TestPortProxyProperties) { talk_base::scoped_ptr port( CreateTestPort(kLocalAddr1, "name", "pass")); port->SetIceRole(cricket::ICEROLE_CONTROLLING); port->SetIceTiebreaker(kTiebreaker1); // Create a proxy port. talk_base::scoped_ptr proxy(new PortProxy()); proxy->set_impl(port.get()); EXPECT_EQ(port->Type(), proxy->Type()); EXPECT_EQ(port->Network(), proxy->Network()); EXPECT_EQ(port->GetIceRole(), proxy->GetIceRole()); EXPECT_EQ(port->IceTiebreaker(), proxy->IceTiebreaker()); } // In the case of shared socket, one port may be shared by local and stun. // Test that candidates with different types will have different foundation. TEST_F(PortTest, TestFoundation) { talk_base::scoped_ptr testport( CreateTestPort(kLocalAddr1, "name", "pass")); testport->AddCandidateAddress(kLocalAddr1, kLocalAddr1, LOCAL_PORT_TYPE, cricket::ICE_TYPE_PREFERENCE_HOST, false); testport->AddCandidateAddress(kLocalAddr2, kLocalAddr1, STUN_PORT_TYPE, cricket::ICE_TYPE_PREFERENCE_SRFLX, true); EXPECT_NE(testport->Candidates()[0].foundation(), testport->Candidates()[1].foundation()); } // This test verifies the foundation of different types of ICE candidates. TEST_F(PortTest, TestCandidateFoundation) { talk_base::scoped_ptr nat_server( CreateNatServer(kNatAddr1, NAT_OPEN_CONE)); talk_base::scoped_ptr udpport1(CreateUdpPort(kLocalAddr1)); udpport1->PrepareAddress(); talk_base::scoped_ptr udpport2(CreateUdpPort(kLocalAddr1)); udpport2->PrepareAddress(); EXPECT_EQ(udpport1->Candidates()[0].foundation(), udpport2->Candidates()[0].foundation()); talk_base::scoped_ptr tcpport1(CreateTcpPort(kLocalAddr1)); tcpport1->PrepareAddress(); talk_base::scoped_ptr tcpport2(CreateTcpPort(kLocalAddr1)); tcpport2->PrepareAddress(); EXPECT_EQ(tcpport1->Candidates()[0].foundation(), tcpport2->Candidates()[0].foundation()); talk_base::scoped_ptr stunport( CreateStunPort(kLocalAddr1, nat_socket_factory1())); stunport->PrepareAddress(); ASSERT_EQ_WAIT(1U, stunport->Candidates().size(), kTimeout); EXPECT_NE(tcpport1->Candidates()[0].foundation(), stunport->Candidates()[0].foundation()); EXPECT_NE(tcpport2->Candidates()[0].foundation(), stunport->Candidates()[0].foundation()); EXPECT_NE(udpport1->Candidates()[0].foundation(), stunport->Candidates()[0].foundation()); EXPECT_NE(udpport2->Candidates()[0].foundation(), stunport->Candidates()[0].foundation()); // Verify GTURN candidate foundation. talk_base::scoped_ptr relayport( CreateGturnPort(kLocalAddr1)); relayport->AddServerAddress( cricket::ProtocolAddress(kRelayUdpIntAddr, cricket::PROTO_UDP)); relayport->PrepareAddress(); ASSERT_EQ_WAIT(1U, relayport->Candidates().size(), kTimeout); EXPECT_NE(udpport1->Candidates()[0].foundation(), relayport->Candidates()[0].foundation()); EXPECT_NE(udpport2->Candidates()[0].foundation(), relayport->Candidates()[0].foundation()); // Verifying TURN candidate foundation. talk_base::scoped_ptr turnport(CreateTurnPort( kLocalAddr1, nat_socket_factory1(), PROTO_UDP, PROTO_UDP)); turnport->PrepareAddress(); ASSERT_EQ_WAIT(1U, turnport->Candidates().size(), kTimeout); EXPECT_NE(udpport1->Candidates()[0].foundation(), turnport->Candidates()[0].foundation()); EXPECT_NE(udpport2->Candidates()[0].foundation(), turnport->Candidates()[0].foundation()); EXPECT_NE(stunport->Candidates()[0].foundation(), turnport->Candidates()[0].foundation()); } // This test verifies the related addresses of different types of // ICE candiates. TEST_F(PortTest, TestCandidateRelatedAddress) { talk_base::scoped_ptr nat_server( CreateNatServer(kNatAddr1, NAT_OPEN_CONE)); talk_base::scoped_ptr udpport(CreateUdpPort(kLocalAddr1)); udpport->PrepareAddress(); // For UDPPort, related address will be empty. EXPECT_TRUE(udpport->Candidates()[0].related_address().IsNil()); // Testing related address for stun candidates. // For stun candidate related address must be equal to the base // socket address. talk_base::scoped_ptr stunport( CreateStunPort(kLocalAddr1, nat_socket_factory1())); stunport->PrepareAddress(); ASSERT_EQ_WAIT(1U, stunport->Candidates().size(), kTimeout); // Check STUN candidate address. EXPECT_EQ(stunport->Candidates()[0].address().ipaddr(), kNatAddr1.ipaddr()); // Check STUN candidate related address. EXPECT_EQ(stunport->Candidates()[0].related_address(), stunport->GetLocalAddress()); // Verifying the related address for the GTURN candidates. // NOTE: In case of GTURN related address will be equal to the mapped // address, but address(mapped) will not be XOR. talk_base::scoped_ptr relayport( CreateGturnPort(kLocalAddr1)); relayport->AddServerAddress( cricket::ProtocolAddress(kRelayUdpIntAddr, cricket::PROTO_UDP)); relayport->PrepareAddress(); ASSERT_EQ_WAIT(1U, relayport->Candidates().size(), kTimeout); // For Gturn related address is set to "0.0.0.0:0" EXPECT_EQ(talk_base::SocketAddress(), relayport->Candidates()[0].related_address()); // Verifying the related address for TURN candidate. // For TURN related address must be equal to the mapped address. talk_base::scoped_ptr turnport(CreateTurnPort( kLocalAddr1, nat_socket_factory1(), PROTO_UDP, PROTO_UDP)); turnport->PrepareAddress(); ASSERT_EQ_WAIT(1U, turnport->Candidates().size(), kTimeout); EXPECT_EQ(kTurnUdpExtAddr.ipaddr(), turnport->Candidates()[0].address().ipaddr()); EXPECT_EQ(kNatAddr1.ipaddr(), turnport->Candidates()[0].related_address().ipaddr()); } // Test priority value overflow handling when preference is set to 3. TEST_F(PortTest, TestCandidatePreference) { cricket::Candidate cand1; cand1.set_preference(3); cricket::Candidate cand2; cand2.set_preference(1); EXPECT_TRUE(cand1.preference() > cand2.preference()); } // Test the Connection priority is calculated correctly. TEST_F(PortTest, TestConnectionPriority) { talk_base::scoped_ptr lport( CreateTestPort(kLocalAddr1, "lfrag", "lpass")); lport->set_type_preference(cricket::ICE_TYPE_PREFERENCE_HOST); talk_base::scoped_ptr rport( CreateTestPort(kLocalAddr2, "rfrag", "rpass")); rport->set_type_preference(cricket::ICE_TYPE_PREFERENCE_RELAY); lport->set_component(123); lport->AddCandidateAddress(SocketAddress("192.168.1.4", 1234)); rport->set_component(23); rport->AddCandidateAddress(SocketAddress("10.1.1.100", 1234)); EXPECT_EQ(0x7E001E85U, lport->Candidates()[0].priority()); EXPECT_EQ(0x2001EE9U, rport->Candidates()[0].priority()); // RFC 5245 // pair priority = 2^32*MIN(G,D) + 2*MAX(G,D) + (G>D?1:0) lport->SetIceRole(cricket::ICEROLE_CONTROLLING); rport->SetIceRole(cricket::ICEROLE_CONTROLLED); Connection* lconn = lport->CreateConnection( rport->Candidates()[0], Port::ORIGIN_MESSAGE); #if defined(WIN32) EXPECT_EQ(0x2001EE9FC003D0BU, lconn->priority()); #else EXPECT_EQ(0x2001EE9FC003D0BLLU, lconn->priority()); #endif lport->SetIceRole(cricket::ICEROLE_CONTROLLED); rport->SetIceRole(cricket::ICEROLE_CONTROLLING); Connection* rconn = rport->CreateConnection( lport->Candidates()[0], Port::ORIGIN_MESSAGE); #if defined(WIN32) EXPECT_EQ(0x2001EE9FC003D0AU, rconn->priority()); #else EXPECT_EQ(0x2001EE9FC003D0ALLU, rconn->priority()); #endif } TEST_F(PortTest, TestWritableState) { UDPPort* port1 = CreateUdpPort(kLocalAddr1); UDPPort* port2 = CreateUdpPort(kLocalAddr2); // Set up channels. TestChannel ch1(port1, port2); TestChannel ch2(port2, port1); // Acquire addresses. ch1.Start(); ch2.Start(); ASSERT_EQ_WAIT(1, ch1.complete_count(), kTimeout); ASSERT_EQ_WAIT(1, ch2.complete_count(), kTimeout); // Send a ping from src to dst. ch1.CreateConnection(); ASSERT_TRUE(ch1.conn() != NULL); EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state()); EXPECT_TRUE_WAIT(ch1.conn()->connected(), kTimeout); // for TCP connect ch1.Ping(); WAIT(!ch2.remote_address().IsNil(), kTimeout); // Data should be unsendable until the connection is accepted. char data[] = "abcd"; int data_size = ARRAY_SIZE(data); EXPECT_EQ(SOCKET_ERROR, ch1.conn()->Send(data, data_size)); // Accept the connection to return the binding response, transition to // writable, and allow data to be sent. ch2.AcceptConnection(); EXPECT_EQ_WAIT(Connection::STATE_WRITABLE, ch1.conn()->write_state(), kTimeout); EXPECT_EQ(data_size, ch1.conn()->Send(data, data_size)); // Ask the connection to update state as if enough time has passed to lose // full writability and 5 pings went unresponded to. We'll accomplish the // latter by sending pings but not pumping messages. for (uint32 i = 1; i <= CONNECTION_WRITE_CONNECT_FAILURES; ++i) { ch1.Ping(i); } uint32 unreliable_timeout_delay = CONNECTION_WRITE_CONNECT_TIMEOUT + 500u; ch1.conn()->UpdateState(unreliable_timeout_delay); EXPECT_EQ(Connection::STATE_WRITE_UNRELIABLE, ch1.conn()->write_state()); // Data should be able to be sent in this state. EXPECT_EQ(data_size, ch1.conn()->Send(data, data_size)); // And now allow the other side to process the pings and send binding // responses. EXPECT_EQ_WAIT(Connection::STATE_WRITABLE, ch1.conn()->write_state(), kTimeout); // Wait long enough for a full timeout (past however long we've already // waited). for (uint32 i = 1; i <= CONNECTION_WRITE_CONNECT_FAILURES; ++i) { ch1.Ping(unreliable_timeout_delay + i); } ch1.conn()->UpdateState(unreliable_timeout_delay + CONNECTION_WRITE_TIMEOUT + 500u); EXPECT_EQ(Connection::STATE_WRITE_TIMEOUT, ch1.conn()->write_state()); // Now that the connection has completely timed out, data send should fail. EXPECT_EQ(SOCKET_ERROR, ch1.conn()->Send(data, data_size)); ch1.Stop(); ch2.Stop(); } TEST_F(PortTest, TestTimeoutForNeverWritable) { UDPPort* port1 = CreateUdpPort(kLocalAddr1); UDPPort* port2 = CreateUdpPort(kLocalAddr2); // Set up channels. TestChannel ch1(port1, port2); TestChannel ch2(port2, port1); // Acquire addresses. ch1.Start(); ch2.Start(); ch1.CreateConnection(); ASSERT_TRUE(ch1.conn() != NULL); EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state()); // Attempt to go directly to write timeout. for (uint32 i = 1; i <= CONNECTION_WRITE_CONNECT_FAILURES; ++i) { ch1.Ping(i); } ch1.conn()->UpdateState(CONNECTION_WRITE_TIMEOUT + 500u); EXPECT_EQ(Connection::STATE_WRITE_TIMEOUT, ch1.conn()->write_state()); } // This test verifies the connection setup between ICEMODE_FULL // and ICEMODE_LITE. // In this test |ch1| behaves like FULL mode client and we have created // port which responds to the ping message just like LITE client. TEST_F(PortTest, TestIceLiteConnectivity) { TestPort* ice_full_port = CreateTestPort( kLocalAddr1, "lfrag", "lpass", cricket::ICEPROTO_RFC5245, cricket::ICEROLE_CONTROLLING, kTiebreaker1); talk_base::scoped_ptr ice_lite_port(CreateTestPort( kLocalAddr2, "rfrag", "rpass", cricket::ICEPROTO_RFC5245, cricket::ICEROLE_CONTROLLED, kTiebreaker2)); // Setup TestChannel. This behaves like FULL mode client. TestChannel ch1(ice_full_port, ice_lite_port.get()); ch1.SetIceMode(ICEMODE_FULL); // Start gathering candidates. ch1.Start(); ice_lite_port->PrepareAddress(); ASSERT_EQ_WAIT(1, ch1.complete_count(), kTimeout); ASSERT_FALSE(ice_lite_port->Candidates().empty()); ch1.CreateConnection(); ASSERT_TRUE(ch1.conn() != NULL); EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state()); // Send ping from full mode client. // This ping must not have USE_CANDIDATE_ATTR. ch1.Ping(); // Verify stun ping is without USE_CANDIDATE_ATTR. Getting message directly // from port. ASSERT_TRUE_WAIT(ice_full_port->last_stun_msg() != NULL, 1000); IceMessage* msg = ice_full_port->last_stun_msg(); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) == NULL); // Respond with a BINDING-RESPONSE from litemode client. // NOTE: Ideally we should't create connection at this stage from lite // port, as it should be done only after receiving ping with USE_CANDIDATE. // But we need a connection to send a response message. ice_lite_port->CreateConnection( ice_full_port->Candidates()[0], cricket::Port::ORIGIN_MESSAGE); talk_base::scoped_ptr request(CopyStunMessage(msg)); ice_lite_port->SendBindingResponse( request.get(), ice_full_port->Candidates()[0].address()); // Feeding the respone message from litemode to the full mode connection. ch1.conn()->OnReadPacket(ice_lite_port->last_stun_buf()->Data(), ice_lite_port->last_stun_buf()->Length()); // Verifying full mode connection becomes writable from the response. EXPECT_EQ_WAIT(Connection::STATE_WRITABLE, ch1.conn()->write_state(), kTimeout); EXPECT_TRUE_WAIT(ch1.nominated(), kTimeout); // Clear existing stun messsages. Otherwise we will process old stun // message right after we send ping. ice_full_port->Reset(); // Send ping. This must have USE_CANDIDATE_ATTR. ch1.Ping(); ASSERT_TRUE_WAIT(ice_full_port->last_stun_msg() != NULL, 1000); msg = ice_full_port->last_stun_msg(); EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) != NULL); ch1.Stop(); }