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henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001/*
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
Jonas Olssona4d87372019-07-05 19:08:33 +020011#include "p2p/base/port.h"
12
Yves Gerey3e707812018-11-28 16:47:49 +010013#include <string.h>
Jonas Olssona4d87372019-07-05 19:08:33 +020014
Yves Gerey3e707812018-11-28 16:47:49 +010015#include <cstdint>
Jonas Orelandef60c2b2020-03-26 15:10:39 +010016#include <limits>
deadbeef5c3c1042017-08-04 15:01:57 -070017#include <list>
kwiberg3ec46792016-04-27 07:22:53 -070018#include <memory>
Yves Gerey3e707812018-11-28 16:47:49 +010019#include <string>
20#include <utility>
21#include <vector>
kwiberg3ec46792016-04-27 07:22:53 -070022
Yves Gerey3e707812018-11-28 16:47:49 +010023#include "absl/types/optional.h"
24#include "api/candidate.h"
Patrik Höglund7d003422019-09-17 12:16:35 +020025#include "api/packet_socket_factory.h"
Patrik Höglund56d94522019-11-18 15:53:32 +010026#include "api/transport/stun.h"
Yves Gerey3e707812018-11-28 16:47:49 +010027#include "api/units/time_delta.h"
Steve Anton10542f22019-01-11 09:11:00 -080028#include "p2p/base/basic_packet_socket_factory.h"
29#include "p2p/base/p2p_constants.h"
Steve Anton10542f22019-01-11 09:11:00 -080030#include "p2p/base/port_allocator.h"
31#include "p2p/base/port_interface.h"
Steve Anton10542f22019-01-11 09:11:00 -080032#include "p2p/base/stun_port.h"
33#include "p2p/base/stun_server.h"
34#include "p2p/base/tcp_port.h"
Steve Anton10542f22019-01-11 09:11:00 -080035#include "p2p/base/test_stun_server.h"
36#include "p2p/base/test_turn_server.h"
37#include "p2p/base/transport_description.h"
38#include "p2p/base/turn_port.h"
39#include "p2p/base/turn_server.h"
40#include "p2p/client/relay_port_factory_interface.h"
Mirko Bonadei92ea95e2017-09-15 06:47:31 +020041#include "rtc_base/arraysize.h"
Steve Anton10542f22019-01-11 09:11:00 -080042#include "rtc_base/async_packet_socket.h"
Mirko Bonadei92ea95e2017-09-15 06:47:31 +020043#include "rtc_base/buffer.h"
Steve Anton10542f22019-01-11 09:11:00 -080044#include "rtc_base/byte_buffer.h"
Yves Gerey3e707812018-11-28 16:47:49 +010045#include "rtc_base/checks.h"
46#include "rtc_base/dscp.h"
Steve Anton10542f22019-01-11 09:11:00 -080047#include "rtc_base/fake_clock.h"
Mirko Bonadei92ea95e2017-09-15 06:47:31 +020048#include "rtc_base/gunit.h"
49#include "rtc_base/helpers.h"
50#include "rtc_base/logging.h"
Steve Anton10542f22019-01-11 09:11:00 -080051#include "rtc_base/nat_server.h"
52#include "rtc_base/nat_socket_factory.h"
53#include "rtc_base/nat_types.h"
54#include "rtc_base/net_helper.h"
Yves Gerey3e707812018-11-28 16:47:49 +010055#include "rtc_base/network.h"
56#include "rtc_base/network/sent_packet.h"
57#include "rtc_base/network_constants.h"
Steve Anton10542f22019-01-11 09:11:00 -080058#include "rtc_base/proxy_info.h"
Yves Gerey3e707812018-11-28 16:47:49 +010059#include "rtc_base/socket.h"
Steve Anton10542f22019-01-11 09:11:00 -080060#include "rtc_base/socket_adapters.h"
61#include "rtc_base/socket_address.h"
Yves Gerey3e707812018-11-28 16:47:49 +010062#include "rtc_base/third_party/sigslot/sigslot.h"
Mirko Bonadei92ea95e2017-09-15 06:47:31 +020063#include "rtc_base/thread.h"
Steve Anton10542f22019-01-11 09:11:00 -080064#include "rtc_base/time_utils.h"
65#include "rtc_base/virtual_socket_server.h"
Yves Gerey3e707812018-11-28 16:47:49 +010066#include "test/gtest.h"
Jonas Orelandc06fe8b2022-03-28 14:58:26 +020067#include "test/scoped_key_value_config.h"
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +000068
Niels Möller6d19d142021-10-06 11:19:03 +020069using rtc::AsyncListenSocket;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +000070using rtc::AsyncPacketSocket;
jbauchf1f87202016-03-30 06:43:37 -070071using rtc::ByteBufferReader;
72using rtc::ByteBufferWriter;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +000073using rtc::NAT_ADDR_RESTRICTED;
Jonas Olssona4d87372019-07-05 19:08:33 +020074using rtc::NAT_OPEN_CONE;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +000075using rtc::NAT_PORT_RESTRICTED;
76using rtc::NAT_SYMMETRIC;
Jonas Olssona4d87372019-07-05 19:08:33 +020077using rtc::NATType;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +000078using rtc::PacketSocketFactory;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +000079using rtc::Socket;
80using rtc::SocketAddress;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +000081
Steve Antonbabf9172017-11-29 10:19:02 -080082namespace cricket {
83namespace {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +000084
Steve Antonbabf9172017-11-29 10:19:02 -080085constexpr int kDefaultTimeout = 3000;
86constexpr int kShortTimeout = 1000;
Qingsi Wang22e623a2018-03-13 10:53:57 -070087constexpr int kMaxExpectedSimulatedRtt = 200;
Steve Antonbabf9172017-11-29 10:19:02 -080088const SocketAddress kLocalAddr1("192.168.1.2", 0);
89const SocketAddress kLocalAddr2("192.168.1.3", 0);
90const SocketAddress kNatAddr1("77.77.77.77", rtc::NAT_SERVER_UDP_PORT);
91const SocketAddress kNatAddr2("88.88.88.88", rtc::NAT_SERVER_UDP_PORT);
92const SocketAddress kStunAddr("99.99.99.1", STUN_SERVER_PORT);
Steve Antonbabf9172017-11-29 10:19:02 -080093const SocketAddress kTurnUdpIntAddr("99.99.99.4", STUN_SERVER_PORT);
94const SocketAddress kTurnTcpIntAddr("99.99.99.4", 5010);
95const SocketAddress kTurnUdpExtAddr("99.99.99.5", 0);
96const RelayCredentials kRelayCredentials("test", "test");
97
98// TODO(?): Update these when RFC5245 is completely supported.
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +000099// Magic value of 30 is from RFC3484, for IPv4 addresses.
Steve Antonbabf9172017-11-29 10:19:02 -0800100const uint32_t kDefaultPrflxPriority = ICE_TYPE_PREFERENCE_PRFLX << 24 |
101 30 << 8 |
102 (256 - ICE_CANDIDATE_COMPONENT_DEFAULT);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000103
Steve Antonbabf9172017-11-29 10:19:02 -0800104constexpr int kTiebreaker1 = 11111;
105constexpr int kTiebreaker2 = 22222;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000106
Steve Antonbabf9172017-11-29 10:19:02 -0800107const char* data = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700108
Steve Antonbabf9172017-11-29 10:19:02 -0800109Candidate GetCandidate(Port* port) {
110 RTC_DCHECK_GE(port->Candidates().size(), 1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000111 return port->Candidates()[0];
112}
113
Steve Antonbabf9172017-11-29 10:19:02 -0800114SocketAddress GetAddress(Port* port) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000115 return GetCandidate(port).address();
116}
117
Steve Anton11358fe2018-10-09 15:39:19 -0700118std::unique_ptr<IceMessage> CopyStunMessage(const IceMessage& src) {
Mirko Bonadei317a1f02019-09-17 17:06:18 +0200119 auto dst = std::make_unique<IceMessage>();
jbauchf1f87202016-03-30 06:43:37 -0700120 ByteBufferWriter buf;
Steve Anton11358fe2018-10-09 15:39:19 -0700121 src.Write(&buf);
jbauchf1f87202016-03-30 06:43:37 -0700122 ByteBufferReader read_buf(buf);
123 dst->Read(&read_buf);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000124 return dst;
125}
126
Steve Anton11358fe2018-10-09 15:39:19 -0700127bool WriteStunMessage(const StunMessage& msg, ByteBufferWriter* buf) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000128 buf->Resize(0); // clear out any existing buffer contents
Steve Anton11358fe2018-10-09 15:39:19 -0700129 return msg.Write(buf);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000130}
131
Steve Antonbabf9172017-11-29 10:19:02 -0800132} // namespace
133
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000134// Stub port class for testing STUN generation and processing.
135class TestPort : public Port {
136 public:
pkasting@chromium.org332331f2014-11-06 20:19:22 +0000137 TestPort(rtc::Thread* thread,
138 const std::string& type,
139 rtc::PacketSocketFactory* factory,
Niels Möllere0c6bdf2022-03-24 15:18:02 +0100140 const rtc::Network* network,
Peter Boström0c4e06b2015-10-07 12:23:21 +0200141 uint16_t min_port,
142 uint16_t max_port,
pkasting@chromium.org332331f2014-11-06 20:19:22 +0000143 const std::string& username_fragment,
144 const std::string& password)
Peter Boström0c4e06b2015-10-07 12:23:21 +0200145 : Port(thread,
146 type,
147 factory,
148 network,
Peter Boström0c4e06b2015-10-07 12:23:21 +0200149 min_port,
150 max_port,
151 username_fragment,
152 password) {}
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000153 ~TestPort() {}
154
155 // Expose GetStunMessage so that we can test it.
156 using cricket::Port::GetStunMessage;
157
158 // The last StunMessage that was sent on this Port.
Steve Antonbabf9172017-11-29 10:19:02 -0800159 // TODO(?): Make these const; requires changes to SendXXXXResponse.
Karl Wiberg4b6c2ec2018-10-03 15:17:14 +0200160 rtc::BufferT<uint8_t>* last_stun_buf() { return last_stun_buf_.get(); }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000161 IceMessage* last_stun_msg() { return last_stun_msg_.get(); }
162 int last_stun_error_code() {
163 int code = 0;
164 if (last_stun_msg_) {
165 const StunErrorCodeAttribute* error_attr = last_stun_msg_->GetErrorCode();
166 if (error_attr) {
167 code = error_attr->code();
168 }
169 }
170 return code;
171 }
172
173 virtual void PrepareAddress() {
deadbeef5c3c1042017-08-04 15:01:57 -0700174 // Act as if the socket was bound to the best IP on the network, to the
175 // first port in the allowed range.
176 rtc::SocketAddress addr(Network()->GetBestIP(), min_port());
Guo-wei Shieh3d564c12015-08-19 16:51:15 -0700177 AddAddress(addr, addr, rtc::SocketAddress(), "udp", "", "", Type(),
zhihuang26d99c22017-02-13 12:47:27 -0800178 ICE_TYPE_PREFERENCE_HOST, 0, "", true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000179 }
180
Honghai Zhangf9945b22015-12-15 12:20:13 -0800181 virtual bool SupportsProtocol(const std::string& protocol) const {
182 return true;
183 }
184
Honghai Zhangb9e7b4a2016-06-30 20:52:02 -0700185 virtual ProtocolType GetProtocol() const { return PROTO_UDP; }
186
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000187 // Exposed for testing candidate building.
188 void AddCandidateAddress(const rtc::SocketAddress& addr) {
Guo-wei Shieh3d564c12015-08-19 16:51:15 -0700189 AddAddress(addr, addr, rtc::SocketAddress(), "udp", "", "", Type(),
zhihuang26d99c22017-02-13 12:47:27 -0800190 type_preference_, 0, "", false);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000191 }
192 void AddCandidateAddress(const rtc::SocketAddress& addr,
193 const rtc::SocketAddress& base_address,
194 const std::string& type,
195 int type_preference,
196 bool final) {
Guo-wei Shieh3d564c12015-08-19 16:51:15 -0700197 AddAddress(addr, base_address, rtc::SocketAddress(), "udp", "", "", type,
zhihuang26d99c22017-02-13 12:47:27 -0800198 type_preference, 0, "", final);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000199 }
200
201 virtual Connection* CreateConnection(const Candidate& remote_candidate,
202 CandidateOrigin origin) {
Tommid7e5cfb2022-03-30 20:13:06 +0200203 Connection* conn = new ProxyConnection(NewWeakPtr(), 0, remote_candidate);
honghaiz36f50e82016-06-01 15:57:03 -0700204 AddOrReplaceConnection(conn);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000205 // Set use-candidate attribute flag as this will add USE-CANDIDATE attribute
206 // in STUN binding requests.
207 conn->set_use_candidate_attr(true);
208 return conn;
209 }
Yves Gerey665174f2018-06-19 15:03:05 +0200210 virtual int SendTo(const void* data,
211 size_t size,
212 const rtc::SocketAddress& addr,
213 const rtc::PacketOptions& options,
214 bool payload) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000215 if (!payload) {
Mirko Bonadei317a1f02019-09-17 17:06:18 +0200216 auto msg = std::make_unique<IceMessage>();
217 auto buf = std::make_unique<rtc::BufferT<uint8_t>>(
Steve Anton11358fe2018-10-09 15:39:19 -0700218 static_cast<const char*>(data), size);
jbauchf1f87202016-03-30 06:43:37 -0700219 ByteBufferReader read_buf(*buf);
220 if (!msg->Read(&read_buf)) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000221 return -1;
222 }
Steve Anton11358fe2018-10-09 15:39:19 -0700223 last_stun_buf_ = std::move(buf);
224 last_stun_msg_ = std::move(msg);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000225 }
226 return static_cast<int>(size);
227 }
Yves Gerey665174f2018-06-19 15:03:05 +0200228 virtual int SetOption(rtc::Socket::Option opt, int value) { return 0; }
229 virtual int GetOption(rtc::Socket::Option opt, int* value) { return -1; }
230 virtual int GetError() { return 0; }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000231 void Reset() {
232 last_stun_buf_.reset();
233 last_stun_msg_.reset();
234 }
235 void set_type_preference(int type_preference) {
236 type_preference_ = type_preference;
237 }
238
239 private:
Stefan Holmer55674ff2016-01-14 15:49:16 +0100240 void OnSentPacket(rtc::AsyncPacketSocket* socket,
241 const rtc::SentPacket& sent_packet) {
242 PortInterface::SignalSentPacket(sent_packet);
243 }
Karl Wiberg4b6c2ec2018-10-03 15:17:14 +0200244 std::unique_ptr<rtc::BufferT<uint8_t>> last_stun_buf_;
kwiberg3ec46792016-04-27 07:22:53 -0700245 std::unique_ptr<IceMessage> last_stun_msg_;
pbos7640ffa2015-11-30 09:16:59 -0800246 int type_preference_ = 0;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000247};
248
Yves Gerey665174f2018-06-19 15:03:05 +0200249static void SendPingAndReceiveResponse(Connection* lconn,
250 TestPort* lport,
251 Connection* rconn,
252 TestPort* rport,
253 rtc::ScopedFakeClock* clock,
254 int64_t ms) {
hbosbf8d3e52017-02-28 06:34:47 -0800255 lconn->Ping(rtc::TimeMillis());
256 ASSERT_TRUE_WAIT(lport->last_stun_msg(), kDefaultTimeout);
257 ASSERT_TRUE(lport->last_stun_buf());
258 rconn->OnReadPacket(lport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +0100259 lport->last_stun_buf()->size(), /* packet_time_us */ -1);
Danil Chapovalov0c626af2020-02-10 11:16:00 +0100260 clock->AdvanceTime(webrtc::TimeDelta::Millis(ms));
hbosbf8d3e52017-02-28 06:34:47 -0800261 ASSERT_TRUE_WAIT(rport->last_stun_msg(), kDefaultTimeout);
262 ASSERT_TRUE(rport->last_stun_buf());
263 lconn->OnReadPacket(rport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +0100264 rport->last_stun_buf()->size(), /* packet_time_us */ -1);
hbosbf8d3e52017-02-28 06:34:47 -0800265}
266
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000267class TestChannel : public sigslot::has_slots<> {
268 public:
Artem Titov2dbb4c92021-07-26 15:12:41 +0200269 // Takes ownership of `p1` (but not `p2`).
Steve Anton11358fe2018-10-09 15:39:19 -0700270 explicit TestChannel(std::unique_ptr<Port> p1) : port_(std::move(p1)) {
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700271 port_->SignalPortComplete.connect(this, &TestChannel::OnPortComplete);
272 port_->SignalUnknownAddress.connect(this, &TestChannel::OnUnknownAddress);
Lahiru Ginnaliya Gamathige3ba7beb2021-02-01 02:06:11 -0800273 port_->SubscribePortDestroyed(
274 [this](PortInterface* port) { OnSrcPortDestroyed(port); });
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000275 }
276
Tommi6fd77f32022-06-09 21:45:56 +0200277 ~TestChannel() { Stop(); }
Tommif564bfe2022-01-31 11:20:41 +0100278
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000279 int complete_count() { return complete_count_; }
280 Connection* conn() { return conn_; }
281 const SocketAddress& remote_address() { return remote_address_; }
282 const std::string remote_fragment() { return remote_frag_; }
283
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700284 void Start() { port_->PrepareAddress(); }
285 void CreateConnection(const Candidate& remote_candidate) {
Tommi6fd77f32022-06-09 21:45:56 +0200286 RTC_DCHECK(!conn_);
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700287 conn_ = port_->CreateConnection(remote_candidate, Port::ORIGIN_MESSAGE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000288 IceMode remote_ice_mode =
289 (ice_mode_ == ICEMODE_FULL) ? ICEMODE_LITE : ICEMODE_FULL;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000290 conn_->set_use_candidate_attr(remote_ice_mode == ICEMODE_FULL);
Yves Gerey665174f2018-06-19 15:03:05 +0200291 conn_->SignalStateChange.connect(this,
292 &TestChannel::OnConnectionStateChange);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700293 conn_->SignalDestroyed.connect(this, &TestChannel::OnDestroyed);
Guo-wei Shiehb5940412015-08-24 11:58:03 -0700294 conn_->SignalReadyToSend.connect(this,
295 &TestChannel::OnConnectionReadyToSend);
296 connection_ready_to_send_ = false;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000297 }
Tommi6fd77f32022-06-09 21:45:56 +0200298
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000299 void OnConnectionStateChange(Connection* conn) {
300 if (conn->write_state() == Connection::STATE_WRITABLE) {
301 conn->set_use_candidate_attr(true);
302 nominated_ = true;
303 }
304 }
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700305 void AcceptConnection(const Candidate& remote_candidate) {
Tommi6fd77f32022-06-09 21:45:56 +0200306 if (conn_) {
307 conn_->SignalDestroyed.disconnect(this);
308 conn_ = nullptr;
309 }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000310 ASSERT_TRUE(remote_request_.get() != NULL);
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700311 Candidate c = remote_candidate;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000312 c.set_address(remote_address_);
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700313 conn_ = port_->CreateConnection(c, Port::ORIGIN_MESSAGE);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700314 conn_->SignalDestroyed.connect(this, &TestChannel::OnDestroyed);
Jonas Oreland9a52bd72019-12-11 11:35:48 +0100315 conn_->SendStunBindingResponse(remote_request_.get());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000316 remote_request_.reset();
317 }
Yves Gerey665174f2018-06-19 15:03:05 +0200318 void Ping() { Ping(0); }
honghaiz34b11eb2016-03-16 08:55:44 -0700319 void Ping(int64_t now) { conn_->Ping(now); }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000320 void Stop() {
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700321 if (conn_) {
Tommi6fd77f32022-06-09 21:45:56 +0200322 port_->DestroyConnection(conn_);
Tommif564bfe2022-01-31 11:20:41 +0100323 conn_ = nullptr;
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700324 }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000325 }
326
Yves Gerey665174f2018-06-19 15:03:05 +0200327 void OnPortComplete(Port* port) { complete_count_++; }
328 void SetIceMode(IceMode ice_mode) { ice_mode_ = ice_mode; }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000329
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700330 int SendData(const char* data, size_t len) {
331 rtc::PacketOptions options;
332 return conn_->Send(data, len, options);
333 }
334
Yves Gerey665174f2018-06-19 15:03:05 +0200335 void OnUnknownAddress(PortInterface* port,
336 const SocketAddress& addr,
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000337 ProtocolType proto,
Yves Gerey665174f2018-06-19 15:03:05 +0200338 IceMessage* msg,
339 const std::string& rf,
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000340 bool /*port_muxed*/) {
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700341 ASSERT_EQ(port_.get(), port);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000342 if (!remote_address_.IsNil()) {
343 ASSERT_EQ(remote_address_, addr);
344 }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000345 const cricket::StunUInt32Attribute* priority_attr =
346 msg->GetUInt32(STUN_ATTR_PRIORITY);
347 const cricket::StunByteStringAttribute* mi_attr =
348 msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY);
349 const cricket::StunUInt32Attribute* fingerprint_attr =
350 msg->GetUInt32(STUN_ATTR_FINGERPRINT);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700351 EXPECT_TRUE(priority_attr != NULL);
352 EXPECT_TRUE(mi_attr != NULL);
353 EXPECT_TRUE(fingerprint_attr != NULL);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000354 remote_address_ = addr;
Steve Anton11358fe2018-10-09 15:39:19 -0700355 remote_request_ = CopyStunMessage(*msg);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000356 remote_frag_ = rf;
357 }
358
359 void OnDestroyed(Connection* conn) {
360 ASSERT_EQ(conn_, conn);
Harald Alvestrand97597c02021-11-04 12:01:23 +0000361 RTC_LOG(LS_INFO) << "OnDestroy connection " << conn << " deleted";
Tommi6fd77f32022-06-09 21:45:56 +0200362 conn_ = nullptr;
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700363 // When the connection is destroyed, also clear these fields so future
364 // connections are possible.
365 remote_request_.reset();
366 remote_address_.Clear();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000367 }
368
369 void OnSrcPortDestroyed(PortInterface* port) {
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700370 Port* destroyed_src = port_.release();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000371 ASSERT_EQ(destroyed_src, port);
372 }
373
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700374 Port* port() { return port_.get(); }
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700375
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000376 bool nominated() const { return nominated_; }
377
Guo-wei Shiehb5940412015-08-24 11:58:03 -0700378 void set_connection_ready_to_send(bool ready) {
379 connection_ready_to_send_ = ready;
380 }
Yves Gerey665174f2018-06-19 15:03:05 +0200381 bool connection_ready_to_send() const { return connection_ready_to_send_; }
Guo-wei Shiehb5940412015-08-24 11:58:03 -0700382
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000383 private:
skvladc309e0e2016-07-28 17:15:20 -0700384 // ReadyToSend will only issue after a Connection recovers from ENOTCONN
Guo-wei Shiehb5940412015-08-24 11:58:03 -0700385 void OnConnectionReadyToSend(Connection* conn) {
386 ASSERT_EQ(conn, conn_);
387 connection_ready_to_send_ = true;
388 }
389
Steve Anton11358fe2018-10-09 15:39:19 -0700390 IceMode ice_mode_ = ICEMODE_FULL;
kwiberg3ec46792016-04-27 07:22:53 -0700391 std::unique_ptr<Port> port_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000392
Steve Anton11358fe2018-10-09 15:39:19 -0700393 int complete_count_ = 0;
394 Connection* conn_ = nullptr;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000395 SocketAddress remote_address_;
kwiberg3ec46792016-04-27 07:22:53 -0700396 std::unique_ptr<StunMessage> remote_request_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000397 std::string remote_frag_;
Steve Anton11358fe2018-10-09 15:39:19 -0700398 bool nominated_ = false;
Guo-wei Shiehb5940412015-08-24 11:58:03 -0700399 bool connection_ready_to_send_ = false;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000400};
401
Mirko Bonadei6a489f22019-04-09 15:11:12 +0200402class PortTest : public ::testing::Test, public sigslot::has_slots<> {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000403 public:
404 PortTest()
deadbeef98e186c2017-05-16 18:00:06 -0700405 : ss_(new rtc::VirtualSocketServer()),
nisse7eaa4ea2017-05-08 05:25:41 -0700406 main_(ss_.get()),
Niels Möller9def9942021-09-07 09:16:49 +0200407 socket_factory_(ss_.get()),
deadbeefc5d0d952015-07-16 10:22:21 -0700408 nat_factory1_(ss_.get(), kNatAddr1, SocketAddress()),
409 nat_factory2_(ss_.get(), kNatAddr2, SocketAddress()),
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000410 nat_socket_factory1_(&nat_factory1_),
411 nat_socket_factory2_(&nat_factory2_),
Niels Möller091617d2020-12-02 15:32:08 +0100412 stun_server_(TestStunServer::Create(ss_.get(), kStunAddr)),
Niels Möller6dd49972021-11-24 14:05:55 +0100413 turn_server_(&main_, ss_.get(), kTurnUdpIntAddr, kTurnUdpExtAddr),
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000414 username_(rtc::CreateRandomString(ICE_UFRAG_LENGTH)),
415 password_(rtc::CreateRandomString(ICE_PWD_LENGTH)),
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000416 role_conflict_(false),
Yves Gerey665174f2018-06-19 15:03:05 +0200417 ports_destroyed_(0) {}
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000418
Mirko Bonadei83829682022-02-25 11:03:15 +0000419 ~PortTest() {
420 // Workaround for tests that trigger async destruction of objects that we
421 // need to give an opportunity here to run, before proceeding with other
422 // teardown.
423 rtc::Thread::Current()->ProcessMessages(0);
424 }
425
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000426 protected:
Jonas Oreland9a52bd72019-12-11 11:35:48 +0100427 std::string password() { return password_; }
428
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000429 void TestLocalToLocal() {
Steve Anton11358fe2018-10-09 15:39:19 -0700430 auto port1 = CreateUdpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700431 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Steve Anton11358fe2018-10-09 15:39:19 -0700432 auto port2 = CreateUdpPort(kLocalAddr2);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700433 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Steve Anton11358fe2018-10-09 15:39:19 -0700434 TestConnectivity("udp", std::move(port1), "udp", std::move(port2), true,
435 true, true, true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000436 }
437 void TestLocalToStun(NATType ntype) {
Steve Anton11358fe2018-10-09 15:39:19 -0700438 auto port1 = CreateUdpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700439 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Steve Anton11358fe2018-10-09 15:39:19 -0700440 nat_server2_ = CreateNatServer(kNatAddr2, ntype);
441 auto port2 = CreateStunPort(kLocalAddr2, &nat_socket_factory2_);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700442 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Steve Anton11358fe2018-10-09 15:39:19 -0700443 TestConnectivity("udp", std::move(port1), StunName(ntype), std::move(port2),
Yves Gerey665174f2018-06-19 15:03:05 +0200444 ntype == NAT_OPEN_CONE, true, ntype != NAT_SYMMETRIC,
445 true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000446 }
Niels Möller191e38f2019-11-04 08:49:12 +0100447 void TestLocalToRelay(ProtocolType proto) {
Steve Anton11358fe2018-10-09 15:39:19 -0700448 auto port1 = CreateUdpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700449 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Niels Möller191e38f2019-11-04 08:49:12 +0100450 auto port2 = CreateRelayPort(kLocalAddr2, proto, PROTO_UDP);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700451 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Niels Möller191e38f2019-11-04 08:49:12 +0100452 TestConnectivity("udp", std::move(port1), RelayName(proto),
453 std::move(port2), false, true, true, true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000454 }
455 void TestStunToLocal(NATType ntype) {
Steve Anton11358fe2018-10-09 15:39:19 -0700456 nat_server1_ = CreateNatServer(kNatAddr1, ntype);
457 auto port1 = CreateStunPort(kLocalAddr1, &nat_socket_factory1_);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700458 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Steve Anton11358fe2018-10-09 15:39:19 -0700459 auto port2 = CreateUdpPort(kLocalAddr2);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700460 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Steve Anton11358fe2018-10-09 15:39:19 -0700461 TestConnectivity(StunName(ntype), std::move(port1), "udp", std::move(port2),
462 true, ntype != NAT_SYMMETRIC, true, true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000463 }
464 void TestStunToStun(NATType ntype1, NATType ntype2) {
Steve Anton11358fe2018-10-09 15:39:19 -0700465 nat_server1_ = CreateNatServer(kNatAddr1, ntype1);
466 auto port1 = CreateStunPort(kLocalAddr1, &nat_socket_factory1_);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700467 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Steve Anton11358fe2018-10-09 15:39:19 -0700468 nat_server2_ = CreateNatServer(kNatAddr2, ntype2);
469 auto port2 = CreateStunPort(kLocalAddr2, &nat_socket_factory2_);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700470 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Steve Anton11358fe2018-10-09 15:39:19 -0700471 TestConnectivity(StunName(ntype1), std::move(port1), StunName(ntype2),
472 std::move(port2), ntype2 == NAT_OPEN_CONE,
473 ntype1 != NAT_SYMMETRIC, ntype2 != NAT_SYMMETRIC,
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000474 ntype1 + ntype2 < (NAT_PORT_RESTRICTED + NAT_SYMMETRIC));
475 }
Niels Möller191e38f2019-11-04 08:49:12 +0100476 void TestStunToRelay(NATType ntype, ProtocolType proto) {
Steve Anton11358fe2018-10-09 15:39:19 -0700477 nat_server1_ = CreateNatServer(kNatAddr1, ntype);
478 auto port1 = CreateStunPort(kLocalAddr1, &nat_socket_factory1_);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700479 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Niels Möller191e38f2019-11-04 08:49:12 +0100480 auto port2 = CreateRelayPort(kLocalAddr2, proto, PROTO_UDP);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700481 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Niels Möller191e38f2019-11-04 08:49:12 +0100482 TestConnectivity(StunName(ntype), std::move(port1), RelayName(proto),
483 std::move(port2), false, ntype != NAT_SYMMETRIC, true,
484 true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000485 }
486 void TestTcpToTcp() {
Steve Anton11358fe2018-10-09 15:39:19 -0700487 auto port1 = CreateTcpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700488 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Steve Anton11358fe2018-10-09 15:39:19 -0700489 auto port2 = CreateTcpPort(kLocalAddr2);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700490 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Steve Anton11358fe2018-10-09 15:39:19 -0700491 TestConnectivity("tcp", std::move(port1), "tcp", std::move(port2), true,
492 false, true, true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000493 }
Niels Möller191e38f2019-11-04 08:49:12 +0100494 void TestTcpToRelay(ProtocolType proto) {
Steve Anton11358fe2018-10-09 15:39:19 -0700495 auto port1 = CreateTcpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700496 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Niels Möller191e38f2019-11-04 08:49:12 +0100497 auto port2 = CreateRelayPort(kLocalAddr2, proto, PROTO_TCP);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700498 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Niels Möller191e38f2019-11-04 08:49:12 +0100499 TestConnectivity("tcp", std::move(port1), RelayName(proto),
500 std::move(port2), false, false, true, true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000501 }
Niels Möller191e38f2019-11-04 08:49:12 +0100502 void TestSslTcpToRelay(ProtocolType proto) {
Steve Anton11358fe2018-10-09 15:39:19 -0700503 auto port1 = CreateTcpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700504 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Niels Möller191e38f2019-11-04 08:49:12 +0100505 auto port2 = CreateRelayPort(kLocalAddr2, proto, PROTO_SSLTCP);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700506 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Niels Möller191e38f2019-11-04 08:49:12 +0100507 TestConnectivity("ssltcp", std::move(port1), RelayName(proto),
508 std::move(port2), false, false, true, true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000509 }
deadbeef5c3c1042017-08-04 15:01:57 -0700510
511 rtc::Network* MakeNetwork(const SocketAddress& addr) {
512 networks_.emplace_back("unittest", "unittest", addr.ipaddr(), 32);
513 networks_.back().AddIP(addr.ipaddr());
514 return &networks_.back();
515 }
516
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000517 // helpers for above functions
Steve Anton11358fe2018-10-09 15:39:19 -0700518 std::unique_ptr<UDPPort> CreateUdpPort(const SocketAddress& addr) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000519 return CreateUdpPort(addr, &socket_factory_);
520 }
Steve Anton11358fe2018-10-09 15:39:19 -0700521 std::unique_ptr<UDPPort> CreateUdpPort(const SocketAddress& addr,
522 PacketSocketFactory* socket_factory) {
Steve Antona8f1e562018-10-10 11:29:44 -0700523 return UDPPort::Create(&main_, socket_factory, MakeNetwork(addr), 0, 0,
Jonas Orelandc06fe8b2022-03-28 14:58:26 +0200524 username_, password_, true, absl::nullopt,
525 &field_trials_);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000526 }
Steve Anton11358fe2018-10-09 15:39:19 -0700527 std::unique_ptr<TCPPort> CreateTcpPort(const SocketAddress& addr) {
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700528 return CreateTcpPort(addr, &socket_factory_);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000529 }
Steve Anton11358fe2018-10-09 15:39:19 -0700530 std::unique_ptr<TCPPort> CreateTcpPort(const SocketAddress& addr,
531 PacketSocketFactory* socket_factory) {
Steve Antona8f1e562018-10-10 11:29:44 -0700532 return TCPPort::Create(&main_, socket_factory, MakeNetwork(addr), 0, 0,
Jonas Orelandc06fe8b2022-03-28 14:58:26 +0200533 username_, password_, true, &field_trials_);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000534 }
Steve Anton11358fe2018-10-09 15:39:19 -0700535 std::unique_ptr<StunPort> CreateStunPort(const SocketAddress& addr,
536 rtc::PacketSocketFactory* factory) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000537 ServerAddresses stun_servers;
538 stun_servers.insert(kStunAddr);
Steve Antona8f1e562018-10-10 11:29:44 -0700539 return StunPort::Create(&main_, factory, MakeNetwork(addr), 0, 0, username_,
Jonas Orelandc06fe8b2022-03-28 14:58:26 +0200540 password_, stun_servers, absl::nullopt,
541 &field_trials_);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000542 }
Steve Anton11358fe2018-10-09 15:39:19 -0700543 std::unique_ptr<Port> CreateRelayPort(const SocketAddress& addr,
Steve Anton11358fe2018-10-09 15:39:19 -0700544 ProtocolType int_proto,
545 ProtocolType ext_proto) {
Niels Möller191e38f2019-11-04 08:49:12 +0100546 return CreateTurnPort(addr, &socket_factory_, int_proto, ext_proto);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000547 }
Steve Anton11358fe2018-10-09 15:39:19 -0700548 std::unique_ptr<TurnPort> CreateTurnPort(const SocketAddress& addr,
549 PacketSocketFactory* socket_factory,
550 ProtocolType int_proto,
551 ProtocolType ext_proto) {
Honghai Zhang80f1db92016-01-27 11:54:45 -0800552 SocketAddress server_addr =
553 int_proto == PROTO_TCP ? kTurnTcpIntAddr : kTurnUdpIntAddr;
554 return CreateTurnPort(addr, socket_factory, int_proto, ext_proto,
555 server_addr);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000556 }
Steve Anton11358fe2018-10-09 15:39:19 -0700557 std::unique_ptr<TurnPort> CreateTurnPort(
558 const SocketAddress& addr,
559 PacketSocketFactory* socket_factory,
560 ProtocolType int_proto,
561 ProtocolType ext_proto,
562 const rtc::SocketAddress& server_addr) {
Jonas Orelandf11a04d2022-03-21 07:33:50 +0100563 RelayServerConfig config;
564 config.credentials = kRelayCredentials;
565 ProtocolAddress server_address(server_addr, int_proto);
566 CreateRelayPortArgs args;
567 args.network_thread = &main_;
568 args.socket_factory = socket_factory;
569 args.network = MakeNetwork(addr);
570 args.username = username_;
571 args.password = password_;
572 args.server_address = &server_address;
573 args.config = &config;
Jonas Orelandc06fe8b2022-03-28 14:58:26 +0200574 args.field_trials = &field_trials_;
Jonas Orelandf11a04d2022-03-21 07:33:50 +0100575
576 return TurnPort::Create(args, 0, 0);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000577 }
Jonas Orelandf11a04d2022-03-21 07:33:50 +0100578
Steve Anton11358fe2018-10-09 15:39:19 -0700579 std::unique_ptr<rtc::NATServer> CreateNatServer(const SocketAddress& addr,
580 rtc::NATType type) {
Mirko Bonadei317a1f02019-09-17 17:06:18 +0200581 return std::make_unique<rtc::NATServer>(type, ss_.get(), addr, addr,
582 ss_.get(), addr);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000583 }
584 static const char* StunName(NATType type) {
585 switch (type) {
hnsl277b2502016-12-13 05:17:23 -0800586 case NAT_OPEN_CONE:
587 return "stun(open cone)";
588 case NAT_ADDR_RESTRICTED:
589 return "stun(addr restricted)";
590 case NAT_PORT_RESTRICTED:
591 return "stun(port restricted)";
592 case NAT_SYMMETRIC:
593 return "stun(symmetric)";
594 default:
595 return "stun(?)";
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000596 }
597 }
Niels Möller191e38f2019-11-04 08:49:12 +0100598 static const char* RelayName(ProtocolType proto) {
599 switch (proto) {
600 case PROTO_UDP:
601 return "turn(udp)";
602 case PROTO_TCP:
603 return "turn(tcp)";
604 case PROTO_SSLTCP:
605 return "turn(ssltcp)";
606 case PROTO_TLS:
607 return "turn(tls)";
608 default:
609 return "turn(?)";
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000610 }
611 }
612
613 void TestCrossFamilyPorts(int type);
614
Peter Thatcherb8b01432015-07-07 16:45:53 -0700615 void ExpectPortsCanConnect(bool can_connect, Port* p1, Port* p2);
616
Artem Titov2dbb4c92021-07-26 15:12:41 +0200617 // This does all the work and then deletes `port1` and `port2`.
Yves Gerey665174f2018-06-19 15:03:05 +0200618 void TestConnectivity(const char* name1,
Steve Anton11358fe2018-10-09 15:39:19 -0700619 std::unique_ptr<Port> port1,
Yves Gerey665174f2018-06-19 15:03:05 +0200620 const char* name2,
Steve Anton11358fe2018-10-09 15:39:19 -0700621 std::unique_ptr<Port> port2,
Yves Gerey665174f2018-06-19 15:03:05 +0200622 bool accept,
623 bool same_addr1,
624 bool same_addr2,
625 bool possible);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000626
Artem Titov2dbb4c92021-07-26 15:12:41 +0200627 // This connects the provided channels which have already started. `ch1`
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700628 // should have its Connection created (either through CreateConnection() or
629 // TCP reconnecting mechanism before entering this function.
630 void ConnectStartedChannels(TestChannel* ch1, TestChannel* ch2) {
631 ASSERT_TRUE(ch1->conn());
Honghai Zhang161a5862016-10-20 11:47:02 -0700632 EXPECT_TRUE_WAIT(ch1->conn()->connected(),
633 kDefaultTimeout); // for TCP connect
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700634 ch1->Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -0700635 WAIT(!ch2->remote_address().IsNil(), kShortTimeout);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700636
637 // Send a ping from dst to src.
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700638 ch2->AcceptConnection(GetCandidate(ch1->port()));
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700639 ch2->Ping();
640 EXPECT_EQ_WAIT(Connection::STATE_WRITABLE, ch2->conn()->write_state(),
Honghai Zhang161a5862016-10-20 11:47:02 -0700641 kDefaultTimeout);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700642 }
643
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000644 // This connects and disconnects the provided channels in the same sequence as
Artem Titov2dbb4c92021-07-26 15:12:41 +0200645 // TestConnectivity with all options set to `true`. It does not delete either
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000646 // channel.
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700647 void StartConnectAndStopChannels(TestChannel* ch1, TestChannel* ch2) {
648 // Acquire addresses.
649 ch1->Start();
650 ch2->Start();
651
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700652 ch1->CreateConnection(GetCandidate(ch2->port()));
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700653 ConnectStartedChannels(ch1, ch2);
654
655 // Destroy the connections.
656 ch1->Stop();
657 ch2->Stop();
658 }
659
660 // This disconnects both end's Connection and make sure ch2 ready for new
661 // connection.
662 void DisconnectTcpTestChannels(TestChannel* ch1, TestChannel* ch2) {
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700663 TCPConnection* tcp_conn1 = static_cast<TCPConnection*>(ch1->conn());
664 TCPConnection* tcp_conn2 = static_cast<TCPConnection*>(ch2->conn());
665 ASSERT_TRUE(
666 ss_->CloseTcpConnections(tcp_conn1->socket()->GetLocalAddress(),
667 tcp_conn2->socket()->GetLocalAddress()));
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700668
669 // Wait for both OnClose are delivered.
Honghai Zhang161a5862016-10-20 11:47:02 -0700670 EXPECT_TRUE_WAIT(!ch1->conn()->connected(), kDefaultTimeout);
671 EXPECT_TRUE_WAIT(!ch2->conn()->connected(), kDefaultTimeout);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700672
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700673 // Ensure redundant SignalClose events on TcpConnection won't break tcp
674 // reconnection. Chromium will fire SignalClose for all outstanding IPC
675 // packets during reconnection.
Tomas Gunnarssonf15189d2022-04-13 09:03:52 +0000676 tcp_conn1->socket()->NotifyClosedForTest(0);
677 tcp_conn2->socket()->NotifyClosedForTest(0);
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700678
679 // Speed up destroying ch2's connection such that the test is ready to
680 // accept a new connection from ch1 before ch1's connection destroys itself.
Tommi6fd77f32022-06-09 21:45:56 +0200681 ch2->Stop();
Honghai Zhang161a5862016-10-20 11:47:02 -0700682 EXPECT_TRUE_WAIT(ch2->conn() == NULL, kDefaultTimeout);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700683 }
684
685 void TestTcpReconnect(bool ping_after_disconnected,
686 bool send_after_disconnected) {
Steve Anton11358fe2018-10-09 15:39:19 -0700687 auto port1 = CreateTcpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700688 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Steve Anton11358fe2018-10-09 15:39:19 -0700689 auto port2 = CreateTcpPort(kLocalAddr2);
Peter Thatcher7cbd1882015-09-17 18:54:52 -0700690 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700691
692 port1->set_component(cricket::ICE_CANDIDATE_COMPONENT_DEFAULT);
693 port2->set_component(cricket::ICE_CANDIDATE_COMPONENT_DEFAULT);
694
695 // Set up channels and ensure both ports will be deleted.
Steve Anton11358fe2018-10-09 15:39:19 -0700696 TestChannel ch1(std::move(port1));
697 TestChannel ch2(std::move(port2));
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700698 EXPECT_EQ(0, ch1.complete_count());
699 EXPECT_EQ(0, ch2.complete_count());
700
701 ch1.Start();
702 ch2.Start();
Honghai Zhang161a5862016-10-20 11:47:02 -0700703 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
704 ASSERT_EQ_WAIT(1, ch2.complete_count(), kDefaultTimeout);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700705
706 // Initial connecting the channel, create connection on channel1.
Steve Anton11358fe2018-10-09 15:39:19 -0700707 ch1.CreateConnection(GetCandidate(ch2.port()));
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700708 ConnectStartedChannels(&ch1, &ch2);
709
710 // Shorten the timeout period.
Honghai Zhang161a5862016-10-20 11:47:02 -0700711 const int kTcpReconnectTimeout = kDefaultTimeout;
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700712 static_cast<TCPConnection*>(ch1.conn())
713 ->set_reconnection_timeout(kTcpReconnectTimeout);
714 static_cast<TCPConnection*>(ch2.conn())
715 ->set_reconnection_timeout(kTcpReconnectTimeout);
716
Guo-wei Shiehb5940412015-08-24 11:58:03 -0700717 EXPECT_FALSE(ch1.connection_ready_to_send());
718 EXPECT_FALSE(ch2.connection_ready_to_send());
719
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700720 // Once connected, disconnect them.
721 DisconnectTcpTestChannels(&ch1, &ch2);
722
723 if (send_after_disconnected || ping_after_disconnected) {
724 if (send_after_disconnected) {
725 // First SendData after disconnect should fail but will trigger
726 // reconnect.
727 EXPECT_EQ(-1, ch1.SendData(data, static_cast<int>(strlen(data))));
728 }
729
730 if (ping_after_disconnected) {
731 // Ping should trigger reconnect.
732 ch1.Ping();
733 }
734
735 // Wait for channel's outgoing TCPConnection connected.
Honghai Zhang161a5862016-10-20 11:47:02 -0700736 EXPECT_TRUE_WAIT(ch1.conn()->connected(), kDefaultTimeout);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700737
738 // Verify that we could still connect channels.
739 ConnectStartedChannels(&ch1, &ch2);
Yves Gerey665174f2018-06-19 15:03:05 +0200740 EXPECT_TRUE_WAIT(ch1.connection_ready_to_send(), kTcpReconnectTimeout);
Guo-wei Shiehb5940412015-08-24 11:58:03 -0700741 // Channel2 is the passive one so a new connection is created during
skvladc309e0e2016-07-28 17:15:20 -0700742 // reconnect. This new connection should never have issued ENOTCONN
Guo-wei Shiehb5940412015-08-24 11:58:03 -0700743 // hence the connection_ready_to_send() should be false.
744 EXPECT_FALSE(ch2.connection_ready_to_send());
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700745 } else {
746 EXPECT_EQ(ch1.conn()->write_state(), Connection::STATE_WRITABLE);
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700747 // Since the reconnection never happens, the connections should have been
748 // destroyed after the timeout.
Honghai Zhang161a5862016-10-20 11:47:02 -0700749 EXPECT_TRUE_WAIT(!ch1.conn(), kTcpReconnectTimeout + kDefaultTimeout);
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700750 EXPECT_TRUE(!ch2.conn());
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700751 }
752
753 // Tear down and ensure that goes smoothly.
754 ch1.Stop();
755 ch2.Stop();
Honghai Zhang161a5862016-10-20 11:47:02 -0700756 EXPECT_TRUE_WAIT(ch1.conn() == NULL, kDefaultTimeout);
757 EXPECT_TRUE_WAIT(ch2.conn() == NULL, kDefaultTimeout);
Guo-wei Shiehbe508a12015-04-06 12:48:47 -0700758 }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000759
Tommi408143d2022-06-01 15:29:31 +0200760 std::unique_ptr<IceMessage> CreateStunMessage(StunMessageType type) {
761 auto msg = std::make_unique<IceMessage>(type, "TESTTESTTEST");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000762 return msg;
763 }
Steve Anton11358fe2018-10-09 15:39:19 -0700764 std::unique_ptr<IceMessage> CreateStunMessageWithUsername(
Tommi408143d2022-06-01 15:29:31 +0200765 StunMessageType type,
Steve Anton11358fe2018-10-09 15:39:19 -0700766 const std::string& username) {
767 std::unique_ptr<IceMessage> msg = CreateStunMessage(type);
Mirko Bonadei317a1f02019-09-17 17:06:18 +0200768 msg->AddAttribute(std::make_unique<StunByteStringAttribute>(
Karl Wiberg918f50c2018-07-05 11:40:33 +0200769 STUN_ATTR_USERNAME, username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000770 return msg;
771 }
Steve Anton11358fe2018-10-09 15:39:19 -0700772 std::unique_ptr<TestPort> CreateTestPort(const rtc::SocketAddress& addr,
773 const std::string& username,
774 const std::string& password) {
Mirko Bonadei317a1f02019-09-17 17:06:18 +0200775 auto port =
776 std::make_unique<TestPort>(&main_, "test", &socket_factory_,
777 MakeNetwork(addr), 0, 0, username, password);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000778 port->SignalRoleConflict.connect(this, &PortTest::OnRoleConflict);
779 return port;
780 }
Steve Anton11358fe2018-10-09 15:39:19 -0700781 std::unique_ptr<TestPort> CreateTestPort(const rtc::SocketAddress& addr,
782 const std::string& username,
783 const std::string& password,
784 cricket::IceRole role,
785 int tiebreaker) {
786 auto port = CreateTestPort(addr, username, password);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000787 port->SetIceRole(role);
788 port->SetIceTiebreaker(tiebreaker);
789 return port;
790 }
deadbeef5c3c1042017-08-04 15:01:57 -0700791 // Overload to create a test port given an rtc::Network directly.
Niels Möllere0c6bdf2022-03-24 15:18:02 +0100792 std::unique_ptr<TestPort> CreateTestPort(const rtc::Network* network,
Steve Anton11358fe2018-10-09 15:39:19 -0700793 const std::string& username,
794 const std::string& password) {
Mirko Bonadei317a1f02019-09-17 17:06:18 +0200795 auto port = std::make_unique<TestPort>(&main_, "test", &socket_factory_,
796 network, 0, 0, username, password);
deadbeef5c3c1042017-08-04 15:01:57 -0700797 port->SignalRoleConflict.connect(this, &PortTest::OnRoleConflict);
798 return port;
799 }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000800
Yves Gerey665174f2018-06-19 15:03:05 +0200801 void OnRoleConflict(PortInterface* port) { role_conflict_ = true; }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000802 bool role_conflict() const { return role_conflict_; }
803
804 void ConnectToSignalDestroyed(PortInterface* port) {
Lahiru Ginnaliya Gamathigec3a486c2021-02-09 00:31:39 -0800805 port->SubscribePortDestroyed(
806 [this](PortInterface* port) { OnDestroyed(port); });
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000807 }
808
Honghai Zhanga74363c2016-07-28 18:06:15 -0700809 void OnDestroyed(PortInterface* port) { ++ports_destroyed_; }
810 int ports_destroyed() const { return ports_destroyed_; }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000811
812 rtc::BasicPacketSocketFactory* nat_socket_factory1() {
813 return &nat_socket_factory1_;
814 }
815
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -0700816 rtc::VirtualSocketServer* vss() { return ss_.get(); }
817
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000818 private:
deadbeef5c3c1042017-08-04 15:01:57 -0700819 // When a "create port" helper method is called with an IP, we create a
820 // Network with that IP and add it to this list. Using a list instead of a
821 // vector so that when it grows, pointers aren't invalidated.
822 std::list<rtc::Network> networks_;
kwiberg3ec46792016-04-27 07:22:53 -0700823 std::unique_ptr<rtc::VirtualSocketServer> ss_;
nisse7eaa4ea2017-05-08 05:25:41 -0700824 rtc::AutoSocketServerThread main_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000825 rtc::BasicPacketSocketFactory socket_factory_;
kwiberg3ec46792016-04-27 07:22:53 -0700826 std::unique_ptr<rtc::NATServer> nat_server1_;
827 std::unique_ptr<rtc::NATServer> nat_server2_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000828 rtc::NATSocketFactory nat_factory1_;
829 rtc::NATSocketFactory nat_factory2_;
830 rtc::BasicPacketSocketFactory nat_socket_factory1_;
831 rtc::BasicPacketSocketFactory nat_socket_factory2_;
kwiberg3ec46792016-04-27 07:22:53 -0700832 std::unique_ptr<TestStunServer> stun_server_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000833 TestTurnServer turn_server_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000834 std::string username_;
835 std::string password_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000836 bool role_conflict_;
Honghai Zhanga74363c2016-07-28 18:06:15 -0700837 int ports_destroyed_;
Jonas Orelandc06fe8b2022-03-28 14:58:26 +0200838 webrtc::test::ScopedKeyValueConfig field_trials_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000839};
840
Yves Gerey665174f2018-06-19 15:03:05 +0200841void PortTest::TestConnectivity(const char* name1,
Steve Anton11358fe2018-10-09 15:39:19 -0700842 std::unique_ptr<Port> port1,
Yves Gerey665174f2018-06-19 15:03:05 +0200843 const char* name2,
Steve Anton11358fe2018-10-09 15:39:19 -0700844 std::unique_ptr<Port> port2,
Yves Gerey665174f2018-06-19 15:03:05 +0200845 bool accept,
846 bool same_addr1,
847 bool same_addr2,
848 bool possible) {
Honghai Zhang161a5862016-10-20 11:47:02 -0700849 rtc::ScopedFakeClock clock;
Mirko Bonadei675513b2017-11-09 11:09:25 +0100850 RTC_LOG(LS_INFO) << "Test: " << name1 << " to " << name2 << ": ";
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000851 port1->set_component(cricket::ICE_CANDIDATE_COMPONENT_DEFAULT);
852 port2->set_component(cricket::ICE_CANDIDATE_COMPONENT_DEFAULT);
853
854 // Set up channels and ensure both ports will be deleted.
Steve Anton11358fe2018-10-09 15:39:19 -0700855 TestChannel ch1(std::move(port1));
856 TestChannel ch2(std::move(port2));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000857 EXPECT_EQ(0, ch1.complete_count());
858 EXPECT_EQ(0, ch2.complete_count());
859
860 // Acquire addresses.
861 ch1.Start();
862 ch2.Start();
Honghai Zhang161a5862016-10-20 11:47:02 -0700863 ASSERT_EQ_SIMULATED_WAIT(1, ch1.complete_count(), kDefaultTimeout, clock);
864 ASSERT_EQ_SIMULATED_WAIT(1, ch2.complete_count(), kDefaultTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000865
866 // Send a ping from src to dst. This may or may not make it.
Steve Anton11358fe2018-10-09 15:39:19 -0700867 ch1.CreateConnection(GetCandidate(ch2.port()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000868 ASSERT_TRUE(ch1.conn() != NULL);
Honghai Zhang161a5862016-10-20 11:47:02 -0700869 EXPECT_TRUE_SIMULATED_WAIT(ch1.conn()->connected(), kDefaultTimeout,
870 clock); // for TCP connect
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000871 ch1.Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -0700872 SIMULATED_WAIT(!ch2.remote_address().IsNil(), kShortTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000873
874 if (accept) {
875 // We are able to send a ping from src to dst. This is the case when
876 // sending to UDP ports and cone NATs.
877 EXPECT_TRUE(ch1.remote_address().IsNil());
Steve Anton11358fe2018-10-09 15:39:19 -0700878 EXPECT_EQ(ch2.remote_fragment(), ch1.port()->username_fragment());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000879
880 // Ensure the ping came from the same address used for src.
881 // This is the case unless the source NAT was symmetric.
Yves Gerey665174f2018-06-19 15:03:05 +0200882 if (same_addr1)
Steve Anton11358fe2018-10-09 15:39:19 -0700883 EXPECT_EQ(ch2.remote_address(), GetAddress(ch1.port()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000884 EXPECT_TRUE(same_addr2);
885
886 // Send a ping from dst to src.
Steve Anton11358fe2018-10-09 15:39:19 -0700887 ch2.AcceptConnection(GetCandidate(ch1.port()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000888 ASSERT_TRUE(ch2.conn() != NULL);
889 ch2.Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -0700890 EXPECT_EQ_SIMULATED_WAIT(Connection::STATE_WRITABLE,
891 ch2.conn()->write_state(), kDefaultTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000892 } else {
893 // We can't send a ping from src to dst, so flip it around. This will happen
894 // when the destination NAT is addr/port restricted or symmetric.
895 EXPECT_TRUE(ch1.remote_address().IsNil());
896 EXPECT_TRUE(ch2.remote_address().IsNil());
897
898 // Send a ping from dst to src. Again, this may or may not make it.
Steve Anton11358fe2018-10-09 15:39:19 -0700899 ch2.CreateConnection(GetCandidate(ch1.port()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000900 ASSERT_TRUE(ch2.conn() != NULL);
901 ch2.Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -0700902 SIMULATED_WAIT(ch2.conn()->write_state() == Connection::STATE_WRITABLE,
903 kShortTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000904
905 if (same_addr1 && same_addr2) {
906 // The new ping got back to the source.
Peter Thatcher04ac81f2015-09-21 11:48:28 -0700907 EXPECT_TRUE(ch1.conn()->receiving());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000908 EXPECT_EQ(Connection::STATE_WRITABLE, ch2.conn()->write_state());
909
910 // First connection may not be writable if the first ping did not get
911 // through. So we will have to do another.
912 if (ch1.conn()->write_state() == Connection::STATE_WRITE_INIT) {
913 ch1.Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -0700914 EXPECT_EQ_SIMULATED_WAIT(Connection::STATE_WRITABLE,
915 ch1.conn()->write_state(), kDefaultTimeout,
916 clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000917 }
918 } else if (!same_addr1 && possible) {
919 // The new ping went to the candidate address, but that address was bad.
920 // This will happen when the source NAT is symmetric.
921 EXPECT_TRUE(ch1.remote_address().IsNil());
922 EXPECT_TRUE(ch2.remote_address().IsNil());
923
924 // However, since we have now sent a ping to the source IP, we should be
925 // able to get a ping from it. This gives us the real source address.
926 ch1.Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -0700927 EXPECT_TRUE_SIMULATED_WAIT(!ch2.remote_address().IsNil(), kDefaultTimeout,
928 clock);
Peter Thatcher04ac81f2015-09-21 11:48:28 -0700929 EXPECT_FALSE(ch2.conn()->receiving());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000930 EXPECT_TRUE(ch1.remote_address().IsNil());
931
932 // Pick up the actual address and establish the connection.
Steve Anton11358fe2018-10-09 15:39:19 -0700933 ch2.AcceptConnection(GetCandidate(ch1.port()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000934 ASSERT_TRUE(ch2.conn() != NULL);
935 ch2.Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -0700936 EXPECT_EQ_SIMULATED_WAIT(Connection::STATE_WRITABLE,
937 ch2.conn()->write_state(), kDefaultTimeout,
938 clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000939 } else if (!same_addr2 && possible) {
940 // The new ping came in, but from an unexpected address. This will happen
941 // when the destination NAT is symmetric.
942 EXPECT_FALSE(ch1.remote_address().IsNil());
Peter Thatcher04ac81f2015-09-21 11:48:28 -0700943 EXPECT_FALSE(ch1.conn()->receiving());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000944
945 // Update our address and complete the connection.
Steve Anton11358fe2018-10-09 15:39:19 -0700946 ch1.AcceptConnection(GetCandidate(ch2.port()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000947 ch1.Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -0700948 EXPECT_EQ_SIMULATED_WAIT(Connection::STATE_WRITABLE,
949 ch1.conn()->write_state(), kDefaultTimeout,
950 clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000951 } else { // (!possible)
952 // There should be s no way for the pings to reach each other. Check it.
953 EXPECT_TRUE(ch1.remote_address().IsNil());
954 EXPECT_TRUE(ch2.remote_address().IsNil());
955 ch1.Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -0700956 SIMULATED_WAIT(!ch2.remote_address().IsNil(), kShortTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000957 EXPECT_TRUE(ch1.remote_address().IsNil());
958 EXPECT_TRUE(ch2.remote_address().IsNil());
959 }
960 }
961
962 // Everything should be good, unless we know the situation is impossible.
963 ASSERT_TRUE(ch1.conn() != NULL);
964 ASSERT_TRUE(ch2.conn() != NULL);
965 if (possible) {
Peter Thatcher04ac81f2015-09-21 11:48:28 -0700966 EXPECT_TRUE(ch1.conn()->receiving());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000967 EXPECT_EQ(Connection::STATE_WRITABLE, ch1.conn()->write_state());
Peter Thatcher04ac81f2015-09-21 11:48:28 -0700968 EXPECT_TRUE(ch2.conn()->receiving());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000969 EXPECT_EQ(Connection::STATE_WRITABLE, ch2.conn()->write_state());
970 } else {
Peter Thatcher04ac81f2015-09-21 11:48:28 -0700971 EXPECT_FALSE(ch1.conn()->receiving());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000972 EXPECT_NE(Connection::STATE_WRITABLE, ch1.conn()->write_state());
Peter Thatcher04ac81f2015-09-21 11:48:28 -0700973 EXPECT_FALSE(ch2.conn()->receiving());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000974 EXPECT_NE(Connection::STATE_WRITABLE, ch2.conn()->write_state());
975 }
976
977 // Tear down and ensure that goes smoothly.
978 ch1.Stop();
979 ch2.Stop();
Honghai Zhang161a5862016-10-20 11:47:02 -0700980 EXPECT_TRUE_SIMULATED_WAIT(ch1.conn() == NULL, kDefaultTimeout, clock);
981 EXPECT_TRUE_SIMULATED_WAIT(ch2.conn() == NULL, kDefaultTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000982}
983
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000984class FakePacketSocketFactory : public rtc::PacketSocketFactory {
985 public:
986 FakePacketSocketFactory()
Jonas Oreland7a284e12020-01-28 09:21:54 +0100987 : next_udp_socket_(NULL), next_server_tcp_socket_(NULL) {}
Yves Gerey665174f2018-06-19 15:03:05 +0200988 ~FakePacketSocketFactory() override {}
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000989
pkasting@chromium.org332331f2014-11-06 20:19:22 +0000990 AsyncPacketSocket* CreateUdpSocket(const SocketAddress& address,
Peter Boström0c4e06b2015-10-07 12:23:21 +0200991 uint16_t min_port,
992 uint16_t max_port) override {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +0000993 EXPECT_TRUE(next_udp_socket_ != NULL);
994 AsyncPacketSocket* result = next_udp_socket_;
995 next_udp_socket_ = NULL;
996 return result;
997 }
998
Niels Möller6d19d142021-10-06 11:19:03 +0200999 AsyncListenSocket* CreateServerTcpSocket(const SocketAddress& local_address,
Peter Boström0c4e06b2015-10-07 12:23:21 +02001000 uint16_t min_port,
1001 uint16_t max_port,
pkasting@chromium.org332331f2014-11-06 20:19:22 +00001002 int opts) override {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001003 EXPECT_TRUE(next_server_tcp_socket_ != NULL);
Niels Möller6d19d142021-10-06 11:19:03 +02001004 AsyncListenSocket* result = next_server_tcp_socket_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001005 next_server_tcp_socket_ = NULL;
1006 return result;
1007 }
1008
Patrik Höglund662e31f2019-09-05 14:35:04 +02001009 AsyncPacketSocket* CreateClientTcpSocket(
1010 const SocketAddress& local_address,
1011 const SocketAddress& remote_address,
1012 const rtc::ProxyInfo& proxy_info,
1013 const std::string& user_agent,
1014 const rtc::PacketSocketTcpOptions& opts) override {
Jonas Oreland7a284e12020-01-28 09:21:54 +01001015 EXPECT_TRUE(next_client_tcp_socket_.has_value());
1016 AsyncPacketSocket* result = *next_client_tcp_socket_;
1017 next_client_tcp_socket_ = nullptr;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001018 return result;
1019 }
1020
1021 void set_next_udp_socket(AsyncPacketSocket* next_udp_socket) {
1022 next_udp_socket_ = next_udp_socket;
1023 }
Niels Möller6d19d142021-10-06 11:19:03 +02001024 void set_next_server_tcp_socket(AsyncListenSocket* next_server_tcp_socket) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001025 next_server_tcp_socket_ = next_server_tcp_socket;
1026 }
1027 void set_next_client_tcp_socket(AsyncPacketSocket* next_client_tcp_socket) {
1028 next_client_tcp_socket_ = next_client_tcp_socket;
1029 }
Harald Alvestrand6f8fa5a2021-10-14 13:57:07 +00001030 std::unique_ptr<webrtc::AsyncDnsResolverInterface> CreateAsyncDnsResolver()
1031 override {
1032 return nullptr;
1033 }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001034
1035 private:
1036 AsyncPacketSocket* next_udp_socket_;
Niels Möller6d19d142021-10-06 11:19:03 +02001037 AsyncListenSocket* next_server_tcp_socket_;
Jonas Oreland7a284e12020-01-28 09:21:54 +01001038 absl::optional<AsyncPacketSocket*> next_client_tcp_socket_;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001039};
1040
1041class FakeAsyncPacketSocket : public AsyncPacketSocket {
1042 public:
1043 // Returns current local address. Address may be set to NULL if the
1044 // socket is not bound yet (GetState() returns STATE_BINDING).
Jonas Oreland7a284e12020-01-28 09:21:54 +01001045 virtual SocketAddress GetLocalAddress() const { return local_address_; }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001046
1047 // Returns remote address. Returns zeroes if this is not a client TCP socket.
Jonas Oreland7a284e12020-01-28 09:21:54 +01001048 virtual SocketAddress GetRemoteAddress() const { return remote_address_; }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001049
1050 // Send a packet.
Yves Gerey665174f2018-06-19 15:03:05 +02001051 virtual int Send(const void* pv,
1052 size_t cb,
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001053 const rtc::PacketOptions& options) {
Jonas Oreland7a284e12020-01-28 09:21:54 +01001054 if (error_ == 0) {
1055 return static_cast<int>(cb);
1056 } else {
1057 return -1;
1058 }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001059 }
Yves Gerey665174f2018-06-19 15:03:05 +02001060 virtual int SendTo(const void* pv,
1061 size_t cb,
1062 const SocketAddress& addr,
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001063 const rtc::PacketOptions& options) {
Jonas Oreland7a284e12020-01-28 09:21:54 +01001064 if (error_ == 0) {
1065 return static_cast<int>(cb);
1066 } else {
1067 return -1;
1068 }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001069 }
Yves Gerey665174f2018-06-19 15:03:05 +02001070 virtual int Close() { return 0; }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001071
1072 virtual State GetState() const { return state_; }
1073 virtual int GetOption(Socket::Option opt, int* value) { return 0; }
1074 virtual int SetOption(Socket::Option opt, int value) { return 0; }
1075 virtual int GetError() const { return 0; }
Jonas Oreland7a284e12020-01-28 09:21:54 +01001076 virtual void SetError(int error) { error_ = error; }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001077
1078 void set_state(State state) { state_ = state; }
1079
Jonas Oreland7a284e12020-01-28 09:21:54 +01001080 SocketAddress local_address_;
1081 SocketAddress remote_address_;
1082
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001083 private:
Jonas Oreland7a284e12020-01-28 09:21:54 +01001084 int error_ = 0;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001085 State state_;
1086};
1087
Niels Möllerd30ece12021-10-19 10:11:02 +02001088class FakeAsyncListenSocket : public AsyncListenSocket {
1089 public:
1090 // Returns current local address. Address may be set to NULL if the
1091 // socket is not bound yet (GetState() returns STATE_BINDING).
1092 virtual SocketAddress GetLocalAddress() const { return local_address_; }
1093 void Bind(const SocketAddress& address) {
1094 local_address_ = address;
1095 state_ = State::kBound;
1096 }
1097 virtual int GetOption(Socket::Option opt, int* value) { return 0; }
1098 virtual int SetOption(Socket::Option opt, int value) { return 0; }
1099 virtual State GetState() const { return state_; }
1100
1101 private:
1102 SocketAddress local_address_;
1103 State state_ = State::kClosed;
1104};
1105
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001106// Local -> XXXX
1107TEST_F(PortTest, TestLocalToLocal) {
1108 TestLocalToLocal();
1109}
1110
1111TEST_F(PortTest, TestLocalToConeNat) {
1112 TestLocalToStun(NAT_OPEN_CONE);
1113}
1114
1115TEST_F(PortTest, TestLocalToARNat) {
1116 TestLocalToStun(NAT_ADDR_RESTRICTED);
1117}
1118
1119TEST_F(PortTest, TestLocalToPRNat) {
1120 TestLocalToStun(NAT_PORT_RESTRICTED);
1121}
1122
1123TEST_F(PortTest, TestLocalToSymNat) {
1124 TestLocalToStun(NAT_SYMMETRIC);
1125}
1126
1127// Flaky: https://code.google.com/p/webrtc/issues/detail?id=3316.
1128TEST_F(PortTest, DISABLED_TestLocalToTurn) {
Niels Möller191e38f2019-11-04 08:49:12 +01001129 TestLocalToRelay(PROTO_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001130}
1131
1132// Cone NAT -> XXXX
1133TEST_F(PortTest, TestConeNatToLocal) {
1134 TestStunToLocal(NAT_OPEN_CONE);
1135}
1136
1137TEST_F(PortTest, TestConeNatToConeNat) {
1138 TestStunToStun(NAT_OPEN_CONE, NAT_OPEN_CONE);
1139}
1140
1141TEST_F(PortTest, TestConeNatToARNat) {
1142 TestStunToStun(NAT_OPEN_CONE, NAT_ADDR_RESTRICTED);
1143}
1144
1145TEST_F(PortTest, TestConeNatToPRNat) {
1146 TestStunToStun(NAT_OPEN_CONE, NAT_PORT_RESTRICTED);
1147}
1148
1149TEST_F(PortTest, TestConeNatToSymNat) {
1150 TestStunToStun(NAT_OPEN_CONE, NAT_SYMMETRIC);
1151}
1152
1153TEST_F(PortTest, TestConeNatToTurn) {
Niels Möller191e38f2019-11-04 08:49:12 +01001154 TestStunToRelay(NAT_OPEN_CONE, PROTO_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001155}
1156
1157// Address-restricted NAT -> XXXX
1158TEST_F(PortTest, TestARNatToLocal) {
1159 TestStunToLocal(NAT_ADDR_RESTRICTED);
1160}
1161
1162TEST_F(PortTest, TestARNatToConeNat) {
1163 TestStunToStun(NAT_ADDR_RESTRICTED, NAT_OPEN_CONE);
1164}
1165
1166TEST_F(PortTest, TestARNatToARNat) {
1167 TestStunToStun(NAT_ADDR_RESTRICTED, NAT_ADDR_RESTRICTED);
1168}
1169
1170TEST_F(PortTest, TestARNatToPRNat) {
1171 TestStunToStun(NAT_ADDR_RESTRICTED, NAT_PORT_RESTRICTED);
1172}
1173
1174TEST_F(PortTest, TestARNatToSymNat) {
1175 TestStunToStun(NAT_ADDR_RESTRICTED, NAT_SYMMETRIC);
1176}
1177
1178TEST_F(PortTest, TestARNatToTurn) {
Niels Möller191e38f2019-11-04 08:49:12 +01001179 TestStunToRelay(NAT_ADDR_RESTRICTED, PROTO_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001180}
1181
1182// Port-restricted NAT -> XXXX
1183TEST_F(PortTest, TestPRNatToLocal) {
1184 TestStunToLocal(NAT_PORT_RESTRICTED);
1185}
1186
1187TEST_F(PortTest, TestPRNatToConeNat) {
1188 TestStunToStun(NAT_PORT_RESTRICTED, NAT_OPEN_CONE);
1189}
1190
1191TEST_F(PortTest, TestPRNatToARNat) {
1192 TestStunToStun(NAT_PORT_RESTRICTED, NAT_ADDR_RESTRICTED);
1193}
1194
1195TEST_F(PortTest, TestPRNatToPRNat) {
1196 TestStunToStun(NAT_PORT_RESTRICTED, NAT_PORT_RESTRICTED);
1197}
1198
1199TEST_F(PortTest, TestPRNatToSymNat) {
1200 // Will "fail"
1201 TestStunToStun(NAT_PORT_RESTRICTED, NAT_SYMMETRIC);
1202}
1203
1204TEST_F(PortTest, TestPRNatToTurn) {
Niels Möller191e38f2019-11-04 08:49:12 +01001205 TestStunToRelay(NAT_PORT_RESTRICTED, PROTO_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001206}
1207
1208// Symmetric NAT -> XXXX
1209TEST_F(PortTest, TestSymNatToLocal) {
1210 TestStunToLocal(NAT_SYMMETRIC);
1211}
1212
1213TEST_F(PortTest, TestSymNatToConeNat) {
1214 TestStunToStun(NAT_SYMMETRIC, NAT_OPEN_CONE);
1215}
1216
1217TEST_F(PortTest, TestSymNatToARNat) {
1218 TestStunToStun(NAT_SYMMETRIC, NAT_ADDR_RESTRICTED);
1219}
1220
1221TEST_F(PortTest, TestSymNatToPRNat) {
1222 // Will "fail"
1223 TestStunToStun(NAT_SYMMETRIC, NAT_PORT_RESTRICTED);
1224}
1225
1226TEST_F(PortTest, TestSymNatToSymNat) {
1227 // Will "fail"
1228 TestStunToStun(NAT_SYMMETRIC, NAT_SYMMETRIC);
1229}
1230
1231TEST_F(PortTest, TestSymNatToTurn) {
Niels Möller191e38f2019-11-04 08:49:12 +01001232 TestStunToRelay(NAT_SYMMETRIC, PROTO_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001233}
1234
1235// Outbound TCP -> XXXX
1236TEST_F(PortTest, TestTcpToTcp) {
1237 TestTcpToTcp();
1238}
1239
Guo-wei Shiehbe508a12015-04-06 12:48:47 -07001240TEST_F(PortTest, TestTcpReconnectOnSendPacket) {
1241 TestTcpReconnect(false /* ping */, true /* send */);
1242}
1243
1244TEST_F(PortTest, TestTcpReconnectOnPing) {
1245 TestTcpReconnect(true /* ping */, false /* send */);
1246}
1247
1248TEST_F(PortTest, TestTcpReconnectTimeout) {
1249 TestTcpReconnect(false /* ping */, false /* send */);
1250}
1251
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -07001252// Test when TcpConnection never connects, the OnClose() will be called to
1253// destroy the connection.
1254TEST_F(PortTest, TestTcpNeverConnect) {
Steve Anton11358fe2018-10-09 15:39:19 -07001255 auto port1 = CreateTcpPort(kLocalAddr1);
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -07001256 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
1257 port1->set_component(cricket::ICE_CANDIDATE_COMPONENT_DEFAULT);
1258
1259 // Set up a channel and ensure the port will be deleted.
Steve Anton11358fe2018-10-09 15:39:19 -07001260 TestChannel ch1(std::move(port1));
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -07001261 EXPECT_EQ(0, ch1.complete_count());
1262
1263 ch1.Start();
Honghai Zhang161a5862016-10-20 11:47:02 -07001264 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -07001265
Niels Möllerd0b88792021-08-12 10:32:30 +02001266 std::unique_ptr<rtc::Socket> server(
1267 vss()->CreateSocket(kLocalAddr2.family(), SOCK_STREAM));
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -07001268 // Bind but not listen.
1269 EXPECT_EQ(0, server->Bind(kLocalAddr2));
1270
Steve Anton11358fe2018-10-09 15:39:19 -07001271 Candidate c = GetCandidate(ch1.port());
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -07001272 c.set_address(server->GetLocalAddress());
1273
1274 ch1.CreateConnection(c);
1275 EXPECT_TRUE(ch1.conn());
Honghai Zhang161a5862016-10-20 11:47:02 -07001276 EXPECT_TRUE_WAIT(!ch1.conn(), kDefaultTimeout); // for TCP connect
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -07001277}
1278
Steve Antonbabf9172017-11-29 10:19:02 -08001279/* TODO(?): Enable these once testrelayserver can accept external TCP.
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001280TEST_F(PortTest, TestTcpToTcpRelay) {
1281 TestTcpToRelay(PROTO_TCP);
1282}
1283
1284TEST_F(PortTest, TestTcpToSslTcpRelay) {
1285 TestTcpToRelay(PROTO_SSLTCP);
1286}
1287*/
1288
1289// Outbound SSLTCP -> XXXX
Steve Antonbabf9172017-11-29 10:19:02 -08001290/* TODO(?): Enable these once testrelayserver can accept external SSL.
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001291TEST_F(PortTest, TestSslTcpToTcpRelay) {
1292 TestSslTcpToRelay(PROTO_TCP);
1293}
1294
1295TEST_F(PortTest, TestSslTcpToSslTcpRelay) {
1296 TestSslTcpToRelay(PROTO_SSLTCP);
1297}
1298*/
1299
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001300// Test that a connection will be dead and deleted if
1301// i) it has never received anything for MIN_CONNECTION_LIFETIME milliseconds
1302// since it was created, or
1303// ii) it has not received anything for DEAD_CONNECTION_RECEIVE_TIMEOUT
1304// milliseconds since last receiving.
1305TEST_F(PortTest, TestConnectionDead) {
Steve Anton11358fe2018-10-09 15:39:19 -07001306 TestChannel ch1(CreateUdpPort(kLocalAddr1));
1307 TestChannel ch2(CreateUdpPort(kLocalAddr2));
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001308 // Acquire address.
1309 ch1.Start();
1310 ch2.Start();
Honghai Zhang161a5862016-10-20 11:47:02 -07001311 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
1312 ASSERT_EQ_WAIT(1, ch2.complete_count(), kDefaultTimeout);
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001313
honghaiz37389b42016-01-04 21:57:33 -08001314 // Test case that the connection has never received anything.
nisse1bffc1d2016-05-02 08:18:55 -07001315 int64_t before_created = rtc::TimeMillis();
Steve Anton11358fe2018-10-09 15:39:19 -07001316 ch1.CreateConnection(GetCandidate(ch2.port()));
nisse1bffc1d2016-05-02 08:18:55 -07001317 int64_t after_created = rtc::TimeMillis();
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001318 Connection* conn = ch1.conn();
nissec8ee8822017-01-18 07:20:55 -08001319 ASSERT_NE(conn, nullptr);
honghaiz37389b42016-01-04 21:57:33 -08001320 // It is not dead if it is after MIN_CONNECTION_LIFETIME but not pruned.
1321 conn->UpdateState(after_created + MIN_CONNECTION_LIFETIME + 1);
1322 rtc::Thread::Current()->ProcessMessages(0);
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001323 EXPECT_TRUE(ch1.conn() != nullptr);
honghaiz37389b42016-01-04 21:57:33 -08001324 // It is not dead if it is before MIN_CONNECTION_LIFETIME and pruned.
1325 conn->UpdateState(before_created + MIN_CONNECTION_LIFETIME - 1);
1326 conn->Prune();
1327 rtc::Thread::Current()->ProcessMessages(0);
1328 EXPECT_TRUE(ch1.conn() != nullptr);
1329 // It will be dead after MIN_CONNECTION_LIFETIME and pruned.
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001330 conn->UpdateState(after_created + MIN_CONNECTION_LIFETIME + 1);
Honghai Zhang161a5862016-10-20 11:47:02 -07001331 EXPECT_TRUE_WAIT(ch1.conn() == nullptr, kDefaultTimeout);
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001332
honghaiz37389b42016-01-04 21:57:33 -08001333 // Test case that the connection has received something.
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001334 // Create a connection again and receive a ping.
Steve Anton11358fe2018-10-09 15:39:19 -07001335 ch1.CreateConnection(GetCandidate(ch2.port()));
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001336 conn = ch1.conn();
nissec8ee8822017-01-18 07:20:55 -08001337 ASSERT_NE(conn, nullptr);
nisse1bffc1d2016-05-02 08:18:55 -07001338 int64_t before_last_receiving = rtc::TimeMillis();
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001339 conn->ReceivedPing();
nisse1bffc1d2016-05-02 08:18:55 -07001340 int64_t after_last_receiving = rtc::TimeMillis();
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001341 // The connection will be dead after DEAD_CONNECTION_RECEIVE_TIMEOUT
Yves Gerey665174f2018-06-19 15:03:05 +02001342 conn->UpdateState(before_last_receiving + DEAD_CONNECTION_RECEIVE_TIMEOUT -
1343 1);
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001344 rtc::Thread::Current()->ProcessMessages(100);
1345 EXPECT_TRUE(ch1.conn() != nullptr);
1346 conn->UpdateState(after_last_receiving + DEAD_CONNECTION_RECEIVE_TIMEOUT + 1);
Honghai Zhang161a5862016-10-20 11:47:02 -07001347 EXPECT_TRUE_WAIT(ch1.conn() == nullptr, kDefaultTimeout);
Honghai Zhang2cd7afe2015-11-12 11:14:33 -08001348}
1349
Jonas Oreland21433ca2020-05-13 14:11:25 +02001350TEST_F(PortTest, TestConnectionDeadWithDeadConnectionTimeout) {
1351 TestChannel ch1(CreateUdpPort(kLocalAddr1));
1352 TestChannel ch2(CreateUdpPort(kLocalAddr2));
1353 // Acquire address.
1354 ch1.Start();
1355 ch2.Start();
1356 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
1357 ASSERT_EQ_WAIT(1, ch2.complete_count(), kDefaultTimeout);
1358
1359 // Note: set field trials manually since they are parsed by
1360 // P2PTransportChannel but P2PTransportChannel is not used in this test.
1361 IceFieldTrials field_trials;
1362 field_trials.dead_connection_timeout_ms = 90000;
1363
1364 // Create a connection again and receive a ping.
1365 ch1.CreateConnection(GetCandidate(ch2.port()));
1366 auto conn = ch1.conn();
1367 conn->SetIceFieldTrials(&field_trials);
1368
1369 ASSERT_NE(conn, nullptr);
1370 int64_t before_last_receiving = rtc::TimeMillis();
1371 conn->ReceivedPing();
1372 int64_t after_last_receiving = rtc::TimeMillis();
1373 // The connection will be dead after 90s
1374 conn->UpdateState(before_last_receiving + 90000 - 1);
1375 rtc::Thread::Current()->ProcessMessages(100);
1376 EXPECT_TRUE(ch1.conn() != nullptr);
1377 conn->UpdateState(after_last_receiving + 90000 + 1);
1378 EXPECT_TRUE_WAIT(ch1.conn() == nullptr, kDefaultTimeout);
1379}
1380
1381TEST_F(PortTest, TestConnectionDeadOutstandingPing) {
1382 auto port1 = CreateUdpPort(kLocalAddr1);
1383 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
1384 port1->SetIceTiebreaker(kTiebreaker1);
1385 auto port2 = CreateUdpPort(kLocalAddr2);
1386 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
1387 port2->SetIceTiebreaker(kTiebreaker2);
1388
1389 TestChannel ch1(std::move(port1));
1390 TestChannel ch2(std::move(port2));
1391 // Acquire address.
1392 ch1.Start();
1393 ch2.Start();
1394 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
1395 ASSERT_EQ_WAIT(1, ch2.complete_count(), kDefaultTimeout);
1396
1397 // Note: set field trials manually since they are parsed by
1398 // P2PTransportChannel but P2PTransportChannel is not used in this test.
1399 IceFieldTrials field_trials;
1400 field_trials.dead_connection_timeout_ms = 360000;
1401
1402 // Create a connection again and receive a ping and then send
1403 // a ping and keep it outstanding.
1404 ch1.CreateConnection(GetCandidate(ch2.port()));
1405 auto conn = ch1.conn();
1406 conn->SetIceFieldTrials(&field_trials);
1407
1408 ASSERT_NE(conn, nullptr);
1409 conn->ReceivedPing();
1410 int64_t send_ping_timestamp = rtc::TimeMillis();
1411 conn->Ping(send_ping_timestamp);
1412
1413 // The connection will be dead 30s after the ping was sent.
1414 conn->UpdateState(send_ping_timestamp + DEAD_CONNECTION_RECEIVE_TIMEOUT - 1);
1415 rtc::Thread::Current()->ProcessMessages(100);
1416 EXPECT_TRUE(ch1.conn() != nullptr);
1417 conn->UpdateState(send_ping_timestamp + DEAD_CONNECTION_RECEIVE_TIMEOUT + 1);
1418 EXPECT_TRUE_WAIT(ch1.conn() == nullptr, kDefaultTimeout);
1419}
1420
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001421// This test case verifies standard ICE features in STUN messages. Currently it
1422// verifies Message Integrity attribute in STUN messages and username in STUN
1423// binding request will have colon (":") between remote and local username.
Peter Thatcher7cbd1882015-09-17 18:54:52 -07001424TEST_F(PortTest, TestLocalToLocalStandard) {
Steve Anton11358fe2018-10-09 15:39:19 -07001425 auto port1 = CreateUdpPort(kLocalAddr1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001426 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
1427 port1->SetIceTiebreaker(kTiebreaker1);
Steve Anton11358fe2018-10-09 15:39:19 -07001428 auto port2 = CreateUdpPort(kLocalAddr2);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001429 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
1430 port2->SetIceTiebreaker(kTiebreaker2);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001431 // Same parameters as TestLocalToLocal above.
Steve Anton11358fe2018-10-09 15:39:19 -07001432 TestConnectivity("udp", std::move(port1), "udp", std::move(port2), true, true,
1433 true, true);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001434}
1435
1436// This test is trying to validate a successful and failure scenario in a
1437// loopback test when protocol is RFC5245. For success IceTiebreaker, username
1438// should remain equal to the request generated by the port and role of port
1439// must be in controlling.
Honghai Zhang161a5862016-10-20 11:47:02 -07001440TEST_F(PortTest, TestLoopbackCall) {
Steve Anton11358fe2018-10-09 15:39:19 -07001441 auto lport = CreateTestPort(kLocalAddr1, "lfrag", "lpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001442 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
1443 lport->SetIceTiebreaker(kTiebreaker1);
1444 lport->PrepareAddress();
1445 ASSERT_FALSE(lport->Candidates().empty());
Yves Gerey665174f2018-06-19 15:03:05 +02001446 Connection* conn =
1447 lport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001448 conn->Ping(0);
1449
Honghai Zhang161a5862016-10-20 11:47:02 -07001450 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001451 IceMessage* msg = lport->last_stun_msg();
1452 EXPECT_EQ(STUN_BINDING_REQUEST, msg->type());
jbauchf1f87202016-03-30 06:43:37 -07001453 conn->OnReadPacket(lport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01001454 lport->last_stun_buf()->size(), /* packet_time_us */ -1);
Honghai Zhang161a5862016-10-20 11:47:02 -07001455 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001456 msg = lport->last_stun_msg();
1457 EXPECT_EQ(STUN_BINDING_RESPONSE, msg->type());
1458
1459 // If the tiebreaker value is different from port, we expect a error
1460 // response.
1461 lport->Reset();
1462 lport->AddCandidateAddress(kLocalAddr2);
Artem Titov2dbb4c92021-07-26 15:12:41 +02001463 // Creating a different connection as `conn` is receiving.
Yves Gerey665174f2018-06-19 15:03:05 +02001464 Connection* conn1 =
1465 lport->CreateConnection(lport->Candidates()[1], Port::ORIGIN_MESSAGE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001466 conn1->Ping(0);
1467
Honghai Zhang161a5862016-10-20 11:47:02 -07001468 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001469 msg = lport->last_stun_msg();
1470 EXPECT_EQ(STUN_BINDING_REQUEST, msg->type());
kwiberg3ec46792016-04-27 07:22:53 -07001471 std::unique_ptr<IceMessage> modified_req(
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001472 CreateStunMessage(STUN_BINDING_REQUEST));
Yves Gerey665174f2018-06-19 15:03:05 +02001473 const StunByteStringAttribute* username_attr =
1474 msg->GetByteString(STUN_ATTR_USERNAME);
Mirko Bonadei317a1f02019-09-17 17:06:18 +02001475 modified_req->AddAttribute(std::make_unique<StunByteStringAttribute>(
Tommie83500e2022-06-03 14:28:59 +02001476 STUN_ATTR_USERNAME, username_attr->string_view()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001477 // To make sure we receive error response, adding tiebreaker less than
1478 // what's present in request.
Mirko Bonadei317a1f02019-09-17 17:06:18 +02001479 modified_req->AddAttribute(std::make_unique<StunUInt64Attribute>(
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001480 STUN_ATTR_ICE_CONTROLLING, kTiebreaker1 - 1));
1481 modified_req->AddMessageIntegrity("lpass");
1482 modified_req->AddFingerprint();
1483
1484 lport->Reset();
Mirko Bonadei317a1f02019-09-17 17:06:18 +02001485 auto buf = std::make_unique<ByteBufferWriter>();
Steve Anton11358fe2018-10-09 15:39:19 -07001486 WriteStunMessage(*modified_req, buf.get());
Niels Möllere6933812018-11-05 13:01:41 +01001487 conn1->OnReadPacket(buf->Data(), buf->Length(), /* packet_time_us */ -1);
Honghai Zhang161a5862016-10-20 11:47:02 -07001488 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001489 msg = lport->last_stun_msg();
1490 EXPECT_EQ(STUN_BINDING_ERROR_RESPONSE, msg->type());
1491}
1492
1493// This test verifies role conflict signal is received when there is
1494// conflict in the role. In this case both ports are in controlling and
Artem Titov2dbb4c92021-07-26 15:12:41 +02001495// `rport` has higher tiebreaker value than `lport`. Since `lport` has lower
1496// value of tiebreaker, when it receives ping request from `rport` it will
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001497// send role conflict signal.
1498TEST_F(PortTest, TestIceRoleConflict) {
Steve Anton11358fe2018-10-09 15:39:19 -07001499 auto lport = CreateTestPort(kLocalAddr1, "lfrag", "lpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001500 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
1501 lport->SetIceTiebreaker(kTiebreaker1);
Steve Anton11358fe2018-10-09 15:39:19 -07001502 auto rport = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001503 rport->SetIceRole(cricket::ICEROLE_CONTROLLING);
1504 rport->SetIceTiebreaker(kTiebreaker2);
1505
1506 lport->PrepareAddress();
1507 rport->PrepareAddress();
1508 ASSERT_FALSE(lport->Candidates().empty());
1509 ASSERT_FALSE(rport->Candidates().empty());
Yves Gerey665174f2018-06-19 15:03:05 +02001510 Connection* lconn =
1511 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
1512 Connection* rconn =
1513 rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001514 rconn->Ping(0);
1515
Honghai Zhang161a5862016-10-20 11:47:02 -07001516 ASSERT_TRUE_WAIT(rport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001517 IceMessage* msg = rport->last_stun_msg();
1518 EXPECT_EQ(STUN_BINDING_REQUEST, msg->type());
1519 // Send rport binding request to lport.
jbauchf1f87202016-03-30 06:43:37 -07001520 lconn->OnReadPacket(rport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01001521 rport->last_stun_buf()->size(), /* packet_time_us */ -1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001522
Honghai Zhang161a5862016-10-20 11:47:02 -07001523 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001524 EXPECT_EQ(STUN_BINDING_RESPONSE, lport->last_stun_msg()->type());
1525 EXPECT_TRUE(role_conflict());
1526}
1527
1528TEST_F(PortTest, TestTcpNoDelay) {
Niels Möller646fddc2021-11-02 15:56:05 +01001529 rtc::ScopedFakeClock clock;
Steve Anton11358fe2018-10-09 15:39:19 -07001530 auto port1 = CreateTcpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -07001531 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001532 int option_value = -1;
Yves Gerey665174f2018-06-19 15:03:05 +02001533 int success = port1->GetOption(rtc::Socket::OPT_NODELAY, &option_value);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001534 ASSERT_EQ(0, success); // GetOption() should complete successfully w/ 0
Niels Möller646fddc2021-11-02 15:56:05 +01001535 EXPECT_EQ(1, option_value);
1536
1537 auto port2 = CreateTcpPort(kLocalAddr2);
1538 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
1539
1540 // Set up a connection, and verify that option is set on connected sockets at
1541 // both ends.
1542 TestChannel ch1(std::move(port1));
1543 TestChannel ch2(std::move(port2));
1544 // Acquire addresses.
1545 ch1.Start();
1546 ch2.Start();
1547 ASSERT_EQ_SIMULATED_WAIT(1, ch1.complete_count(), kDefaultTimeout, clock);
1548 ASSERT_EQ_SIMULATED_WAIT(1, ch2.complete_count(), kDefaultTimeout, clock);
1549 // Connect and send a ping from src to dst.
1550 ch1.CreateConnection(GetCandidate(ch2.port()));
1551 ASSERT_TRUE(ch1.conn() != NULL);
1552 EXPECT_TRUE_SIMULATED_WAIT(ch1.conn()->connected(), kDefaultTimeout,
1553 clock); // for TCP connect
1554 ch1.Ping();
1555 SIMULATED_WAIT(!ch2.remote_address().IsNil(), kShortTimeout, clock);
1556
1557 // Accept the connection.
1558 ch2.AcceptConnection(GetCandidate(ch1.port()));
1559 ASSERT_TRUE(ch2.conn() != NULL);
1560
1561 option_value = -1;
1562 success = static_cast<TCPConnection*>(ch1.conn())
1563 ->socket()
1564 ->GetOption(rtc::Socket::OPT_NODELAY, &option_value);
1565 ASSERT_EQ(0, success);
1566 EXPECT_EQ(1, option_value);
1567
1568 option_value = -1;
1569 success = static_cast<TCPConnection*>(ch2.conn())
1570 ->socket()
1571 ->GetOption(rtc::Socket::OPT_NODELAY, &option_value);
1572 ASSERT_EQ(0, success);
1573 EXPECT_EQ(1, option_value);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001574}
1575
1576TEST_F(PortTest, TestDelayedBindingUdp) {
Benjamin Wrightd6f86e82018-05-08 13:12:25 -07001577 FakeAsyncPacketSocket* socket = new FakeAsyncPacketSocket();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001578 FakePacketSocketFactory socket_factory;
1579
1580 socket_factory.set_next_udp_socket(socket);
Steve Anton11358fe2018-10-09 15:39:19 -07001581 auto port = CreateUdpPort(kLocalAddr1, &socket_factory);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001582
1583 socket->set_state(AsyncPacketSocket::STATE_BINDING);
1584 port->PrepareAddress();
1585
1586 EXPECT_EQ(0U, port->Candidates().size());
1587 socket->SignalAddressReady(socket, kLocalAddr2);
1588
1589 EXPECT_EQ(1U, port->Candidates().size());
1590}
1591
Jonas Oreland7a284e12020-01-28 09:21:54 +01001592TEST_F(PortTest, TestDisableInterfaceOfTcpPort) {
Niels Möllerd30ece12021-10-19 10:11:02 +02001593 FakeAsyncListenSocket* lsocket = new FakeAsyncListenSocket();
1594 FakeAsyncListenSocket* rsocket = new FakeAsyncListenSocket();
Jonas Oreland7a284e12020-01-28 09:21:54 +01001595 FakePacketSocketFactory socket_factory;
1596
1597 socket_factory.set_next_server_tcp_socket(lsocket);
1598 auto lport = CreateTcpPort(kLocalAddr1, &socket_factory);
1599
1600 socket_factory.set_next_server_tcp_socket(rsocket);
1601 auto rport = CreateTcpPort(kLocalAddr2, &socket_factory);
1602
Niels Möllerd30ece12021-10-19 10:11:02 +02001603 lsocket->Bind(kLocalAddr1);
1604 rsocket->Bind(kLocalAddr2);
Jonas Oreland7a284e12020-01-28 09:21:54 +01001605
1606 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
1607 lport->SetIceTiebreaker(kTiebreaker1);
1608 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
1609 rport->SetIceTiebreaker(kTiebreaker2);
1610
1611 lport->PrepareAddress();
1612 rport->PrepareAddress();
1613 ASSERT_FALSE(rport->Candidates().empty());
1614
1615 // A client socket.
1616 FakeAsyncPacketSocket* socket = new FakeAsyncPacketSocket();
1617 socket->local_address_ = kLocalAddr1;
1618 socket->remote_address_ = kLocalAddr2;
1619 socket_factory.set_next_client_tcp_socket(socket);
1620 Connection* lconn =
1621 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
1622 ASSERT_NE(lconn, nullptr);
1623 socket->SignalConnect(socket);
1624 lconn->Ping(0);
1625
1626 // Now disconnect the client socket...
Tomas Gunnarssonf15189d2022-04-13 09:03:52 +00001627 socket->NotifyClosedForTest(1);
Jonas Oreland7a284e12020-01-28 09:21:54 +01001628
1629 // And prevent new sockets from being created.
1630 socket_factory.set_next_client_tcp_socket(nullptr);
1631
1632 // Test that Ping() does not cause SEGV.
1633 lconn->Ping(0);
1634}
1635
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001636void PortTest::TestCrossFamilyPorts(int type) {
1637 FakePacketSocketFactory factory;
kwiberg3ec46792016-04-27 07:22:53 -07001638 std::unique_ptr<Port> ports[4];
Yves Gerey665174f2018-06-19 15:03:05 +02001639 SocketAddress addresses[4] = {
1640 SocketAddress("192.168.1.3", 0), SocketAddress("192.168.1.4", 0),
1641 SocketAddress("2001:db8::1", 0), SocketAddress("2001:db8::2", 0)};
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001642 for (int i = 0; i < 4; i++) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001643 if (type == SOCK_DGRAM) {
Niels Möllerd30ece12021-10-19 10:11:02 +02001644 FakeAsyncPacketSocket* socket = new FakeAsyncPacketSocket();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001645 factory.set_next_udp_socket(socket);
Steve Anton11358fe2018-10-09 15:39:19 -07001646 ports[i] = CreateUdpPort(addresses[i], &factory);
Niels Möller4a1c2c42021-09-28 10:17:07 +02001647 socket->set_state(AsyncPacketSocket::STATE_BINDING);
1648 socket->SignalAddressReady(socket, addresses[i]);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001649 } else if (type == SOCK_STREAM) {
Niels Möllerd30ece12021-10-19 10:11:02 +02001650 FakeAsyncListenSocket* socket = new FakeAsyncListenSocket();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001651 factory.set_next_server_tcp_socket(socket);
Steve Anton11358fe2018-10-09 15:39:19 -07001652 ports[i] = CreateTcpPort(addresses[i], &factory);
Niels Möllerd30ece12021-10-19 10:11:02 +02001653 socket->Bind(addresses[i]);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001654 }
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001655 ports[i]->PrepareAddress();
1656 }
1657
1658 // IPv4 Port, connects to IPv6 candidate and then to IPv4 candidate.
1659 if (type == SOCK_STREAM) {
1660 FakeAsyncPacketSocket* clientsocket = new FakeAsyncPacketSocket();
1661 factory.set_next_client_tcp_socket(clientsocket);
1662 }
1663 Connection* c = ports[0]->CreateConnection(GetCandidate(ports[2].get()),
1664 Port::ORIGIN_MESSAGE);
1665 EXPECT_TRUE(NULL == c);
1666 EXPECT_EQ(0U, ports[0]->connections().size());
1667 c = ports[0]->CreateConnection(GetCandidate(ports[1].get()),
1668 Port::ORIGIN_MESSAGE);
1669 EXPECT_FALSE(NULL == c);
1670 EXPECT_EQ(1U, ports[0]->connections().size());
1671
1672 // IPv6 Port, connects to IPv4 candidate and to IPv6 candidate.
1673 if (type == SOCK_STREAM) {
1674 FakeAsyncPacketSocket* clientsocket = new FakeAsyncPacketSocket();
1675 factory.set_next_client_tcp_socket(clientsocket);
1676 }
1677 c = ports[2]->CreateConnection(GetCandidate(ports[0].get()),
1678 Port::ORIGIN_MESSAGE);
1679 EXPECT_TRUE(NULL == c);
1680 EXPECT_EQ(0U, ports[2]->connections().size());
1681 c = ports[2]->CreateConnection(GetCandidate(ports[3].get()),
1682 Port::ORIGIN_MESSAGE);
1683 EXPECT_FALSE(NULL == c);
1684 EXPECT_EQ(1U, ports[2]->connections().size());
1685}
1686
1687TEST_F(PortTest, TestSkipCrossFamilyTcp) {
1688 TestCrossFamilyPorts(SOCK_STREAM);
1689}
1690
1691TEST_F(PortTest, TestSkipCrossFamilyUdp) {
1692 TestCrossFamilyPorts(SOCK_DGRAM);
1693}
1694
Peter Thatcherb8b01432015-07-07 16:45:53 -07001695void PortTest::ExpectPortsCanConnect(bool can_connect, Port* p1, Port* p2) {
Yves Gerey665174f2018-06-19 15:03:05 +02001696 Connection* c = p1->CreateConnection(GetCandidate(p2), Port::ORIGIN_MESSAGE);
Peter Thatcherb8b01432015-07-07 16:45:53 -07001697 if (can_connect) {
1698 EXPECT_FALSE(NULL == c);
1699 EXPECT_EQ(1U, p1->connections().size());
1700 } else {
1701 EXPECT_TRUE(NULL == c);
1702 EXPECT_EQ(0U, p1->connections().size());
1703 }
1704}
1705
1706TEST_F(PortTest, TestUdpV6CrossTypePorts) {
1707 FakePacketSocketFactory factory;
kwiberg3ec46792016-04-27 07:22:53 -07001708 std::unique_ptr<Port> ports[4];
Yves Gerey665174f2018-06-19 15:03:05 +02001709 SocketAddress addresses[4] = {
1710 SocketAddress("2001:db8::1", 0), SocketAddress("fe80::1", 0),
1711 SocketAddress("fe80::2", 0), SocketAddress("::1", 0)};
Peter Thatcherb8b01432015-07-07 16:45:53 -07001712 for (int i = 0; i < 4; i++) {
Benjamin Wrightd6f86e82018-05-08 13:12:25 -07001713 FakeAsyncPacketSocket* socket = new FakeAsyncPacketSocket();
Peter Thatcherb8b01432015-07-07 16:45:53 -07001714 factory.set_next_udp_socket(socket);
Steve Anton11358fe2018-10-09 15:39:19 -07001715 ports[i] = CreateUdpPort(addresses[i], &factory);
Peter Thatcherb8b01432015-07-07 16:45:53 -07001716 socket->set_state(AsyncPacketSocket::STATE_BINDING);
1717 socket->SignalAddressReady(socket, addresses[i]);
1718 ports[i]->PrepareAddress();
1719 }
1720
1721 Port* standard = ports[0].get();
1722 Port* link_local1 = ports[1].get();
1723 Port* link_local2 = ports[2].get();
1724 Port* localhost = ports[3].get();
1725
1726 ExpectPortsCanConnect(false, link_local1, standard);
1727 ExpectPortsCanConnect(false, standard, link_local1);
1728 ExpectPortsCanConnect(false, link_local1, localhost);
1729 ExpectPortsCanConnect(false, localhost, link_local1);
1730
1731 ExpectPortsCanConnect(true, link_local1, link_local2);
1732 ExpectPortsCanConnect(true, localhost, standard);
1733 ExpectPortsCanConnect(true, standard, localhost);
1734}
1735
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001736// This test verifies DSCP value set through SetOption interface can be
1737// get through DefaultDscpValue.
1738TEST_F(PortTest, TestDefaultDscpValue) {
1739 int dscp;
Steve Anton11358fe2018-10-09 15:39:19 -07001740 auto udpport = CreateUdpPort(kLocalAddr1);
Yves Gerey665174f2018-06-19 15:03:05 +02001741 EXPECT_EQ(0, udpport->SetOption(rtc::Socket::OPT_DSCP, rtc::DSCP_CS6));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001742 EXPECT_EQ(0, udpport->GetOption(rtc::Socket::OPT_DSCP, &dscp));
Steve Anton11358fe2018-10-09 15:39:19 -07001743 auto tcpport = CreateTcpPort(kLocalAddr1);
Yves Gerey665174f2018-06-19 15:03:05 +02001744 EXPECT_EQ(0, tcpport->SetOption(rtc::Socket::OPT_DSCP, rtc::DSCP_AF31));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001745 EXPECT_EQ(0, tcpport->GetOption(rtc::Socket::OPT_DSCP, &dscp));
1746 EXPECT_EQ(rtc::DSCP_AF31, dscp);
Steve Anton11358fe2018-10-09 15:39:19 -07001747 auto stunport = CreateStunPort(kLocalAddr1, nat_socket_factory1());
Yves Gerey665174f2018-06-19 15:03:05 +02001748 EXPECT_EQ(0, stunport->SetOption(rtc::Socket::OPT_DSCP, rtc::DSCP_AF41));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001749 EXPECT_EQ(0, stunport->GetOption(rtc::Socket::OPT_DSCP, &dscp));
1750 EXPECT_EQ(rtc::DSCP_AF41, dscp);
Steve Anton11358fe2018-10-09 15:39:19 -07001751 auto turnport1 =
1752 CreateTurnPort(kLocalAddr1, nat_socket_factory1(), PROTO_UDP, PROTO_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001753 // Socket is created in PrepareAddress.
1754 turnport1->PrepareAddress();
Yves Gerey665174f2018-06-19 15:03:05 +02001755 EXPECT_EQ(0, turnport1->SetOption(rtc::Socket::OPT_DSCP, rtc::DSCP_CS7));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001756 EXPECT_EQ(0, turnport1->GetOption(rtc::Socket::OPT_DSCP, &dscp));
1757 EXPECT_EQ(rtc::DSCP_CS7, dscp);
1758 // This will verify correct value returned without the socket.
Steve Anton11358fe2018-10-09 15:39:19 -07001759 auto turnport2 =
1760 CreateTurnPort(kLocalAddr1, nat_socket_factory1(), PROTO_UDP, PROTO_UDP);
Yves Gerey665174f2018-06-19 15:03:05 +02001761 EXPECT_EQ(0, turnport2->SetOption(rtc::Socket::OPT_DSCP, rtc::DSCP_CS6));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001762 EXPECT_EQ(0, turnport2->GetOption(rtc::Socket::OPT_DSCP, &dscp));
1763 EXPECT_EQ(rtc::DSCP_CS6, dscp);
1764}
1765
Peter Thatcher7cbd1882015-09-17 18:54:52 -07001766// Test sending STUN messages.
1767TEST_F(PortTest, TestSendStunMessage) {
Steve Anton11358fe2018-10-09 15:39:19 -07001768 auto lport = CreateTestPort(kLocalAddr1, "lfrag", "lpass");
1769 auto rport = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001770 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
1771 lport->SetIceTiebreaker(kTiebreaker1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001772 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
1773 rport->SetIceTiebreaker(kTiebreaker2);
1774
1775 // Send a fake ping from lport to rport.
1776 lport->PrepareAddress();
1777 rport->PrepareAddress();
1778 ASSERT_FALSE(rport->Candidates().empty());
Yves Gerey665174f2018-06-19 15:03:05 +02001779 Connection* lconn =
1780 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
1781 Connection* rconn =
1782 rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001783 lconn->Ping(0);
1784
1785 // Check that it's a proper BINDING-REQUEST.
Honghai Zhang161a5862016-10-20 11:47:02 -07001786 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001787 IceMessage* msg = lport->last_stun_msg();
1788 EXPECT_EQ(STUN_BINDING_REQUEST, msg->type());
1789 EXPECT_FALSE(msg->IsLegacy());
1790 const StunByteStringAttribute* username_attr =
1791 msg->GetByteString(STUN_ATTR_USERNAME);
1792 ASSERT_TRUE(username_attr != NULL);
1793 const StunUInt32Attribute* priority_attr = msg->GetUInt32(STUN_ATTR_PRIORITY);
1794 ASSERT_TRUE(priority_attr != NULL);
1795 EXPECT_EQ(kDefaultPrflxPriority, priority_attr->value());
Tommie83500e2022-06-03 14:28:59 +02001796 EXPECT_EQ("rfrag:lfrag", username_attr->string_view());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001797 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY) != NULL);
Harald Alvestrand07d83c82021-03-02 08:09:53 +00001798 EXPECT_EQ(StunMessage::IntegrityStatus::kIntegrityOk,
1799 msg->ValidateMessageIntegrity("rpass"));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001800 const StunUInt64Attribute* ice_controlling_attr =
1801 msg->GetUInt64(STUN_ATTR_ICE_CONTROLLING);
1802 ASSERT_TRUE(ice_controlling_attr != NULL);
1803 EXPECT_EQ(lport->IceTiebreaker(), ice_controlling_attr->value());
1804 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_ICE_CONTROLLED) == NULL);
1805 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) != NULL);
1806 EXPECT_TRUE(msg->GetUInt32(STUN_ATTR_FINGERPRINT) != NULL);
1807 EXPECT_TRUE(StunMessage::ValidateFingerprint(
jbauchf1f87202016-03-30 06:43:37 -07001808 lport->last_stun_buf()->data<char>(), lport->last_stun_buf()->size()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001809
1810 // Request should not include ping count.
1811 ASSERT_TRUE(msg->GetUInt32(STUN_ATTR_RETRANSMIT_COUNT) == NULL);
1812
1813 // Save a copy of the BINDING-REQUEST for use below.
Steve Anton11358fe2018-10-09 15:39:19 -07001814 std::unique_ptr<IceMessage> request = CopyStunMessage(*msg);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001815
zhihuang5ecf16c2016-06-01 17:09:15 -07001816 // Receive the BINDING-REQUEST and respond with BINDING-RESPONSE.
1817 rconn->OnReadPacket(lport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01001818 lport->last_stun_buf()->size(), /* packet_time_us */ -1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001819 msg = rport->last_stun_msg();
1820 ASSERT_TRUE(msg != NULL);
1821 EXPECT_EQ(STUN_BINDING_RESPONSE, msg->type());
zhihuang5ecf16c2016-06-01 17:09:15 -07001822 // Received a BINDING-RESPONSE.
1823 lconn->OnReadPacket(rport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01001824 rport->last_stun_buf()->size(), /* packet_time_us */ -1);
zhihuang5ecf16c2016-06-01 17:09:15 -07001825 // Verify the STUN Stats.
1826 EXPECT_EQ(1U, lconn->stats().sent_ping_requests_total);
1827 EXPECT_EQ(1U, lconn->stats().sent_ping_requests_before_first_response);
1828 EXPECT_EQ(1U, lconn->stats().recv_ping_responses);
1829 EXPECT_EQ(1U, rconn->stats().recv_ping_requests);
1830 EXPECT_EQ(1U, rconn->stats().sent_ping_responses);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001831
1832 EXPECT_FALSE(msg->IsLegacy());
Yves Gerey665174f2018-06-19 15:03:05 +02001833 const StunAddressAttribute* addr_attr =
1834 msg->GetAddress(STUN_ATTR_XOR_MAPPED_ADDRESS);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001835 ASSERT_TRUE(addr_attr != NULL);
1836 EXPECT_EQ(lport->Candidates()[0].address(), addr_attr->GetAddress());
1837 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY) != NULL);
Harald Alvestrand07d83c82021-03-02 08:09:53 +00001838 EXPECT_EQ(StunMessage::IntegrityStatus::kIntegrityOk,
1839 msg->ValidateMessageIntegrity("rpass"));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001840 EXPECT_TRUE(msg->GetUInt32(STUN_ATTR_FINGERPRINT) != NULL);
1841 EXPECT_TRUE(StunMessage::ValidateFingerprint(
jbauchf1f87202016-03-30 06:43:37 -07001842 lport->last_stun_buf()->data<char>(), lport->last_stun_buf()->size()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001843 // No USERNAME or PRIORITY in ICE responses.
1844 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USERNAME) == NULL);
1845 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_PRIORITY) == NULL);
1846 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MAPPED_ADDRESS) == NULL);
1847 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_ICE_CONTROLLING) == NULL);
1848 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_ICE_CONTROLLED) == NULL);
1849 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) == NULL);
1850
1851 // Response should not include ping count.
1852 ASSERT_TRUE(msg->GetUInt32(STUN_ATTR_RETRANSMIT_COUNT) == NULL);
1853
1854 // Respond with a BINDING-ERROR-RESPONSE. This wouldn't happen in real life,
1855 // but we can do it here.
Yves Gerey665174f2018-06-19 15:03:05 +02001856 rport->SendBindingErrorResponse(
1857 request.get(), lport->Candidates()[0].address(), STUN_ERROR_SERVER_ERROR,
1858 STUN_ERROR_REASON_SERVER_ERROR);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001859 msg = rport->last_stun_msg();
1860 ASSERT_TRUE(msg != NULL);
1861 EXPECT_EQ(STUN_BINDING_ERROR_RESPONSE, msg->type());
1862 EXPECT_FALSE(msg->IsLegacy());
1863 const StunErrorCodeAttribute* error_attr = msg->GetErrorCode();
1864 ASSERT_TRUE(error_attr != NULL);
1865 EXPECT_EQ(STUN_ERROR_SERVER_ERROR, error_attr->code());
1866 EXPECT_EQ(std::string(STUN_ERROR_REASON_SERVER_ERROR), error_attr->reason());
1867 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_MESSAGE_INTEGRITY) != NULL);
Harald Alvestrand07d83c82021-03-02 08:09:53 +00001868 EXPECT_EQ(StunMessage::IntegrityStatus::kIntegrityOk,
1869 msg->ValidateMessageIntegrity("rpass"));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001870 EXPECT_TRUE(msg->GetUInt32(STUN_ATTR_FINGERPRINT) != NULL);
1871 EXPECT_TRUE(StunMessage::ValidateFingerprint(
jbauchf1f87202016-03-30 06:43:37 -07001872 lport->last_stun_buf()->data<char>(), lport->last_stun_buf()->size()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001873 // No USERNAME with ICE.
1874 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USERNAME) == NULL);
1875 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_PRIORITY) == NULL);
1876
1877 // Testing STUN binding requests from rport --> lport, having ICE_CONTROLLED
1878 // and (incremented) RETRANSMIT_COUNT attributes.
1879 rport->Reset();
1880 rport->set_send_retransmit_count_attribute(true);
1881 rconn->Ping(0);
1882 rconn->Ping(0);
1883 rconn->Ping(0);
Honghai Zhang161a5862016-10-20 11:47:02 -07001884 ASSERT_TRUE_WAIT(rport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001885 msg = rport->last_stun_msg();
1886 EXPECT_EQ(STUN_BINDING_REQUEST, msg->type());
1887 const StunUInt64Attribute* ice_controlled_attr =
1888 msg->GetUInt64(STUN_ATTR_ICE_CONTROLLED);
1889 ASSERT_TRUE(ice_controlled_attr != NULL);
1890 EXPECT_EQ(rport->IceTiebreaker(), ice_controlled_attr->value());
1891 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) == NULL);
1892
1893 // Request should include ping count.
1894 const StunUInt32Attribute* retransmit_attr =
1895 msg->GetUInt32(STUN_ATTR_RETRANSMIT_COUNT);
1896 ASSERT_TRUE(retransmit_attr != NULL);
1897 EXPECT_EQ(2U, retransmit_attr->value());
1898
1899 // Respond with a BINDING-RESPONSE.
Steve Anton11358fe2018-10-09 15:39:19 -07001900 request = CopyStunMessage(*msg);
zhihuang5ecf16c2016-06-01 17:09:15 -07001901 lconn->OnReadPacket(rport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01001902 rport->last_stun_buf()->size(), /* packet_time_us */ -1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001903 msg = lport->last_stun_msg();
zhihuang5ecf16c2016-06-01 17:09:15 -07001904 // Receive the BINDING-RESPONSE.
1905 rconn->OnReadPacket(lport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01001906 lport->last_stun_buf()->size(), /* packet_time_us */ -1);
zhihuang5ecf16c2016-06-01 17:09:15 -07001907
1908 // Verify the Stun ping stats.
1909 EXPECT_EQ(3U, rconn->stats().sent_ping_requests_total);
1910 EXPECT_EQ(3U, rconn->stats().sent_ping_requests_before_first_response);
1911 EXPECT_EQ(1U, rconn->stats().recv_ping_responses);
1912 EXPECT_EQ(1U, lconn->stats().sent_ping_responses);
1913 EXPECT_EQ(1U, lconn->stats().recv_ping_requests);
1914 // Ping after receiver the first response
1915 rconn->Ping(0);
1916 rconn->Ping(0);
1917 EXPECT_EQ(5U, rconn->stats().sent_ping_requests_total);
1918 EXPECT_EQ(3U, rconn->stats().sent_ping_requests_before_first_response);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00001919
1920 // Response should include same ping count.
1921 retransmit_attr = msg->GetUInt32(STUN_ATTR_RETRANSMIT_COUNT);
1922 ASSERT_TRUE(retransmit_attr != NULL);
1923 EXPECT_EQ(2U, retransmit_attr->value());
1924}
1925
hbos92eaec62017-02-27 01:38:08 -08001926TEST_F(PortTest, TestNomination) {
Steve Anton11358fe2018-10-09 15:39:19 -07001927 auto lport = CreateTestPort(kLocalAddr1, "lfrag", "lpass");
1928 auto rport = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
hbos92eaec62017-02-27 01:38:08 -08001929 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
1930 lport->SetIceTiebreaker(kTiebreaker1);
1931 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
1932 rport->SetIceTiebreaker(kTiebreaker2);
1933
1934 lport->PrepareAddress();
1935 rport->PrepareAddress();
1936 ASSERT_FALSE(lport->Candidates().empty());
1937 ASSERT_FALSE(rport->Candidates().empty());
Yves Gerey665174f2018-06-19 15:03:05 +02001938 Connection* lconn =
1939 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
1940 Connection* rconn =
1941 rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
hbos92eaec62017-02-27 01:38:08 -08001942
Artem Titov2dbb4c92021-07-26 15:12:41 +02001943 // `lconn` is controlling, `rconn` is controlled.
hbos92eaec62017-02-27 01:38:08 -08001944 uint32_t nomination = 1234;
1945 lconn->set_nomination(nomination);
1946
1947 EXPECT_FALSE(lconn->nominated());
1948 EXPECT_FALSE(rconn->nominated());
1949 EXPECT_EQ(lconn->nominated(), lconn->stats().nominated);
1950 EXPECT_EQ(rconn->nominated(), rconn->stats().nominated);
1951
Artem Titov2dbb4c92021-07-26 15:12:41 +02001952 // Send ping (including the nomination value) from `lconn` to `rconn`. This
1953 // should set the remote nomination of `rconn`.
hbos92eaec62017-02-27 01:38:08 -08001954 lconn->Ping(0);
1955 ASSERT_TRUE_WAIT(lport->last_stun_msg(), kDefaultTimeout);
1956 ASSERT_TRUE(lport->last_stun_buf());
1957 rconn->OnReadPacket(lport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01001958 lport->last_stun_buf()->size(), /* packet_time_us */ -1);
hbos92eaec62017-02-27 01:38:08 -08001959 EXPECT_EQ(nomination, rconn->remote_nomination());
1960 EXPECT_FALSE(lconn->nominated());
1961 EXPECT_TRUE(rconn->nominated());
1962 EXPECT_EQ(lconn->nominated(), lconn->stats().nominated);
1963 EXPECT_EQ(rconn->nominated(), rconn->stats().nominated);
1964
Artem Titov2dbb4c92021-07-26 15:12:41 +02001965 // This should result in an acknowledgment sent back from `rconn` to `lconn`,
1966 // updating the acknowledged nomination of `lconn`.
hbos92eaec62017-02-27 01:38:08 -08001967 ASSERT_TRUE_WAIT(rport->last_stun_msg(), kDefaultTimeout);
1968 ASSERT_TRUE(rport->last_stun_buf());
1969 lconn->OnReadPacket(rport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01001970 rport->last_stun_buf()->size(), /* packet_time_us */ -1);
hbos92eaec62017-02-27 01:38:08 -08001971 EXPECT_EQ(nomination, lconn->acked_nomination());
1972 EXPECT_TRUE(lconn->nominated());
1973 EXPECT_TRUE(rconn->nominated());
1974 EXPECT_EQ(lconn->nominated(), lconn->stats().nominated);
1975 EXPECT_EQ(rconn->nominated(), rconn->stats().nominated);
1976}
1977
hbosbf8d3e52017-02-28 06:34:47 -08001978TEST_F(PortTest, TestRoundTripTime) {
1979 rtc::ScopedFakeClock clock;
1980
Steve Anton11358fe2018-10-09 15:39:19 -07001981 auto lport = CreateTestPort(kLocalAddr1, "lfrag", "lpass");
1982 auto rport = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
hbosbf8d3e52017-02-28 06:34:47 -08001983 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
1984 lport->SetIceTiebreaker(kTiebreaker1);
1985 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
1986 rport->SetIceTiebreaker(kTiebreaker2);
1987
1988 lport->PrepareAddress();
1989 rport->PrepareAddress();
1990 ASSERT_FALSE(lport->Candidates().empty());
1991 ASSERT_FALSE(rport->Candidates().empty());
Yves Gerey665174f2018-06-19 15:03:05 +02001992 Connection* lconn =
1993 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
1994 Connection* rconn =
1995 rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
hbosbf8d3e52017-02-28 06:34:47 -08001996
1997 EXPECT_EQ(0u, lconn->stats().total_round_trip_time_ms);
1998 EXPECT_FALSE(lconn->stats().current_round_trip_time_ms);
1999
Yves Gerey665174f2018-06-19 15:03:05 +02002000 SendPingAndReceiveResponse(lconn, lport.get(), rconn, rport.get(), &clock,
2001 10);
hbosbf8d3e52017-02-28 06:34:47 -08002002 EXPECT_EQ(10u, lconn->stats().total_round_trip_time_ms);
2003 ASSERT_TRUE(lconn->stats().current_round_trip_time_ms);
2004 EXPECT_EQ(10u, *lconn->stats().current_round_trip_time_ms);
2005
Yves Gerey665174f2018-06-19 15:03:05 +02002006 SendPingAndReceiveResponse(lconn, lport.get(), rconn, rport.get(), &clock,
2007 20);
hbosbf8d3e52017-02-28 06:34:47 -08002008 EXPECT_EQ(30u, lconn->stats().total_round_trip_time_ms);
2009 ASSERT_TRUE(lconn->stats().current_round_trip_time_ms);
2010 EXPECT_EQ(20u, *lconn->stats().current_round_trip_time_ms);
2011
Yves Gerey665174f2018-06-19 15:03:05 +02002012 SendPingAndReceiveResponse(lconn, lport.get(), rconn, rport.get(), &clock,
2013 30);
hbosbf8d3e52017-02-28 06:34:47 -08002014 EXPECT_EQ(60u, lconn->stats().total_round_trip_time_ms);
2015 ASSERT_TRUE(lconn->stats().current_round_trip_time_ms);
2016 EXPECT_EQ(30u, *lconn->stats().current_round_trip_time_ms);
2017}
2018
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002019TEST_F(PortTest, TestUseCandidateAttribute) {
Steve Anton11358fe2018-10-09 15:39:19 -07002020 auto lport = CreateTestPort(kLocalAddr1, "lfrag", "lpass");
2021 auto rport = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002022 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
2023 lport->SetIceTiebreaker(kTiebreaker1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002024 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
2025 rport->SetIceTiebreaker(kTiebreaker2);
2026
2027 // Send a fake ping from lport to rport.
2028 lport->PrepareAddress();
2029 rport->PrepareAddress();
2030 ASSERT_FALSE(rport->Candidates().empty());
Yves Gerey665174f2018-06-19 15:03:05 +02002031 Connection* lconn =
2032 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002033 lconn->Ping(0);
Honghai Zhang161a5862016-10-20 11:47:02 -07002034 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002035 IceMessage* msg = lport->last_stun_msg();
2036 const StunUInt64Attribute* ice_controlling_attr =
2037 msg->GetUInt64(STUN_ATTR_ICE_CONTROLLING);
2038 ASSERT_TRUE(ice_controlling_attr != NULL);
Yves Gerey665174f2018-06-19 15:03:05 +02002039 const StunByteStringAttribute* use_candidate_attr =
2040 msg->GetByteString(STUN_ATTR_USE_CANDIDATE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002041 ASSERT_TRUE(use_candidate_attr != NULL);
2042}
2043
Honghai Zhang351d77b2016-05-20 15:08:29 -07002044// Tests that when the network type changes, the network cost of the port will
2045// change, the network cost of the local candidates will change. Also tests that
2046// the remote network costs are updated with the stun binding requests.
2047TEST_F(PortTest, TestNetworkCostChange) {
deadbeef5c3c1042017-08-04 15:01:57 -07002048 rtc::Network* test_network = MakeNetwork(kLocalAddr1);
Steve Anton11358fe2018-10-09 15:39:19 -07002049 auto lport = CreateTestPort(test_network, "lfrag", "lpass");
2050 auto rport = CreateTestPort(test_network, "rfrag", "rpass");
Honghai Zhang351d77b2016-05-20 15:08:29 -07002051 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
2052 lport->SetIceTiebreaker(kTiebreaker1);
2053 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
2054 rport->SetIceTiebreaker(kTiebreaker2);
2055 lport->PrepareAddress();
2056 rport->PrepareAddress();
2057
2058 // Default local port cost is rtc::kNetworkCostUnknown.
2059 EXPECT_EQ(rtc::kNetworkCostUnknown, lport->network_cost());
2060 ASSERT_TRUE(!lport->Candidates().empty());
2061 for (const cricket::Candidate& candidate : lport->Candidates()) {
2062 EXPECT_EQ(rtc::kNetworkCostUnknown, candidate.network_cost());
2063 }
2064
2065 // Change the network type to wifi.
deadbeef5c3c1042017-08-04 15:01:57 -07002066 test_network->set_type(rtc::ADAPTER_TYPE_WIFI);
Honghai Zhang351d77b2016-05-20 15:08:29 -07002067 EXPECT_EQ(rtc::kNetworkCostLow, lport->network_cost());
2068 for (const cricket::Candidate& candidate : lport->Candidates()) {
2069 EXPECT_EQ(rtc::kNetworkCostLow, candidate.network_cost());
2070 }
2071
2072 // Add a connection and then change the network type.
2073 Connection* lconn =
2074 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
2075 // Change the network type to cellular.
deadbeef5c3c1042017-08-04 15:01:57 -07002076 test_network->set_type(rtc::ADAPTER_TYPE_CELLULAR);
Honghai Zhang351d77b2016-05-20 15:08:29 -07002077 EXPECT_EQ(rtc::kNetworkCostHigh, lport->network_cost());
2078 for (const cricket::Candidate& candidate : lport->Candidates()) {
2079 EXPECT_EQ(rtc::kNetworkCostHigh, candidate.network_cost());
2080 }
2081
deadbeef5c3c1042017-08-04 15:01:57 -07002082 test_network->set_type(rtc::ADAPTER_TYPE_WIFI);
Honghai Zhang351d77b2016-05-20 15:08:29 -07002083 Connection* rconn =
2084 rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
deadbeef5c3c1042017-08-04 15:01:57 -07002085 test_network->set_type(rtc::ADAPTER_TYPE_CELLULAR);
Honghai Zhang351d77b2016-05-20 15:08:29 -07002086 lconn->Ping(0);
2087 // The rconn's remote candidate cost is rtc::kNetworkCostLow, but the ping
2088 // contains an attribute of network cost of rtc::kNetworkCostHigh. Once the
2089 // message is handled in rconn, The rconn's remote candidate will have cost
2090 // rtc::kNetworkCostHigh;
2091 EXPECT_EQ(rtc::kNetworkCostLow, rconn->remote_candidate().network_cost());
Honghai Zhang161a5862016-10-20 11:47:02 -07002092 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
Honghai Zhang351d77b2016-05-20 15:08:29 -07002093 IceMessage* msg = lport->last_stun_msg();
2094 EXPECT_EQ(STUN_BINDING_REQUEST, msg->type());
2095 // Pass the binding request to rport.
2096 rconn->OnReadPacket(lport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01002097 lport->last_stun_buf()->size(), /* packet_time_us */ -1);
Honghai Zhang351d77b2016-05-20 15:08:29 -07002098 // Wait until rport sends the response and then check the remote network cost.
Honghai Zhang161a5862016-10-20 11:47:02 -07002099 ASSERT_TRUE_WAIT(rport->last_stun_msg() != NULL, kDefaultTimeout);
Honghai Zhang351d77b2016-05-20 15:08:29 -07002100 EXPECT_EQ(rtc::kNetworkCostHigh, rconn->remote_candidate().network_cost());
2101}
2102
honghaiza0c44ea2016-03-23 16:07:48 -07002103TEST_F(PortTest, TestNetworkInfoAttribute) {
deadbeef5c3c1042017-08-04 15:01:57 -07002104 rtc::Network* test_network = MakeNetwork(kLocalAddr1);
Steve Anton11358fe2018-10-09 15:39:19 -07002105 auto lport = CreateTestPort(test_network, "lfrag", "lpass");
2106 auto rport = CreateTestPort(test_network, "rfrag", "rpass");
honghaiza0c44ea2016-03-23 16:07:48 -07002107 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
2108 lport->SetIceTiebreaker(kTiebreaker1);
2109 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
2110 rport->SetIceTiebreaker(kTiebreaker2);
2111
2112 uint16_t lnetwork_id = 9;
Niels Möllere0c6bdf2022-03-24 15:18:02 +01002113 test_network->set_id(lnetwork_id);
honghaiza0c44ea2016-03-23 16:07:48 -07002114 // Send a fake ping from lport to rport.
2115 lport->PrepareAddress();
2116 rport->PrepareAddress();
2117 Connection* lconn =
2118 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
2119 lconn->Ping(0);
Honghai Zhang161a5862016-10-20 11:47:02 -07002120 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
honghaiza0c44ea2016-03-23 16:07:48 -07002121 IceMessage* msg = lport->last_stun_msg();
2122 const StunUInt32Attribute* network_info_attr =
Jonas Orelandfa543642020-09-16 10:44:54 +02002123 msg->GetUInt32(STUN_ATTR_GOOG_NETWORK_INFO);
honghaiza0c44ea2016-03-23 16:07:48 -07002124 ASSERT_TRUE(network_info_attr != NULL);
2125 uint32_t network_info = network_info_attr->value();
2126 EXPECT_EQ(lnetwork_id, network_info >> 16);
Honghai Zhang351d77b2016-05-20 15:08:29 -07002127 // Default network has unknown type and cost kNetworkCostUnknown.
2128 EXPECT_EQ(rtc::kNetworkCostUnknown, network_info & 0xFFFF);
honghaiza0c44ea2016-03-23 16:07:48 -07002129
Honghai Zhang351d77b2016-05-20 15:08:29 -07002130 // Set the network type to be cellular so its cost will be kNetworkCostHigh.
honghaiza0c44ea2016-03-23 16:07:48 -07002131 // Send a fake ping from rport to lport.
deadbeef5c3c1042017-08-04 15:01:57 -07002132 test_network->set_type(rtc::ADAPTER_TYPE_CELLULAR);
honghaiza0c44ea2016-03-23 16:07:48 -07002133 uint16_t rnetwork_id = 8;
Niels Möllere0c6bdf2022-03-24 15:18:02 +01002134 test_network->set_id(rnetwork_id);
honghaiza0c44ea2016-03-23 16:07:48 -07002135 Connection* rconn =
2136 rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
2137 rconn->Ping(0);
Honghai Zhang161a5862016-10-20 11:47:02 -07002138 ASSERT_TRUE_WAIT(rport->last_stun_msg() != NULL, kDefaultTimeout);
honghaiza0c44ea2016-03-23 16:07:48 -07002139 msg = rport->last_stun_msg();
Jonas Orelandfa543642020-09-16 10:44:54 +02002140 network_info_attr = msg->GetUInt32(STUN_ATTR_GOOG_NETWORK_INFO);
honghaiza0c44ea2016-03-23 16:07:48 -07002141 ASSERT_TRUE(network_info_attr != NULL);
2142 network_info = network_info_attr->value();
2143 EXPECT_EQ(rnetwork_id, network_info >> 16);
Honghai Zhang351d77b2016-05-20 15:08:29 -07002144 EXPECT_EQ(rtc::kNetworkCostHigh, network_info & 0xFFFF);
honghaiza0c44ea2016-03-23 16:07:48 -07002145}
2146
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002147// Test handling STUN messages.
2148TEST_F(PortTest, TestHandleStunMessage) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002149 // Our port will act as the "remote" port.
Steve Anton11358fe2018-10-09 15:39:19 -07002150 auto port = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002151
kwiberg3ec46792016-04-27 07:22:53 -07002152 std::unique_ptr<IceMessage> in_msg, out_msg;
Mirko Bonadei317a1f02019-09-17 17:06:18 +02002153 auto buf = std::make_unique<ByteBufferWriter>();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002154 rtc::SocketAddress addr(kLocalAddr1);
2155 std::string username;
2156
2157 // BINDING-REQUEST from local to remote with valid ICE username,
2158 // MESSAGE-INTEGRITY, and FINGERPRINT.
Steve Anton11358fe2018-10-09 15:39:19 -07002159 in_msg = CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfrag:lfrag");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002160 in_msg->AddMessageIntegrity("rpass");
2161 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002162 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002163 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2164 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002165 EXPECT_TRUE(out_msg.get() != NULL);
2166 EXPECT_EQ("lfrag", username);
2167
2168 // BINDING-RESPONSE without username, with MESSAGE-INTEGRITY and FINGERPRINT.
Steve Anton11358fe2018-10-09 15:39:19 -07002169 in_msg = CreateStunMessage(STUN_BINDING_RESPONSE);
Mirko Bonadei317a1f02019-09-17 17:06:18 +02002170 in_msg->AddAttribute(std::make_unique<StunXorAddressAttribute>(
zsteinf42cc9d2017-03-27 16:17:19 -07002171 STUN_ATTR_XOR_MAPPED_ADDRESS, kLocalAddr2));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002172 in_msg->AddMessageIntegrity("rpass");
2173 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002174 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002175 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2176 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002177 EXPECT_TRUE(out_msg.get() != NULL);
2178 EXPECT_EQ("", username);
2179
2180 // BINDING-ERROR-RESPONSE without username, with error, M-I, and FINGERPRINT.
Steve Anton11358fe2018-10-09 15:39:19 -07002181 in_msg = CreateStunMessage(STUN_BINDING_ERROR_RESPONSE);
Mirko Bonadei317a1f02019-09-17 17:06:18 +02002182 in_msg->AddAttribute(std::make_unique<StunErrorCodeAttribute>(
zsteinf42cc9d2017-03-27 16:17:19 -07002183 STUN_ATTR_ERROR_CODE, STUN_ERROR_SERVER_ERROR,
2184 STUN_ERROR_REASON_SERVER_ERROR));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002185 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002186 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002187 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2188 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002189 EXPECT_TRUE(out_msg.get() != NULL);
2190 EXPECT_EQ("", username);
2191 ASSERT_TRUE(out_msg->GetErrorCode() != NULL);
2192 EXPECT_EQ(STUN_ERROR_SERVER_ERROR, out_msg->GetErrorCode()->code());
2193 EXPECT_EQ(std::string(STUN_ERROR_REASON_SERVER_ERROR),
Yves Gerey665174f2018-06-19 15:03:05 +02002194 out_msg->GetErrorCode()->reason());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002195}
2196
guoweisd12140a2015-09-10 13:32:11 -07002197// Tests handling of ICE binding requests with missing or incorrect usernames.
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002198TEST_F(PortTest, TestHandleStunMessageBadUsername) {
Steve Anton11358fe2018-10-09 15:39:19 -07002199 auto port = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002200
kwiberg3ec46792016-04-27 07:22:53 -07002201 std::unique_ptr<IceMessage> in_msg, out_msg;
Mirko Bonadei317a1f02019-09-17 17:06:18 +02002202 auto buf = std::make_unique<ByteBufferWriter>();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002203 rtc::SocketAddress addr(kLocalAddr1);
2204 std::string username;
2205
2206 // BINDING-REQUEST with no username.
Steve Anton11358fe2018-10-09 15:39:19 -07002207 in_msg = CreateStunMessage(STUN_BINDING_REQUEST);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002208 in_msg->AddMessageIntegrity("rpass");
2209 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002210 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002211 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2212 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002213 EXPECT_TRUE(out_msg.get() == NULL);
2214 EXPECT_EQ("", username);
2215 EXPECT_EQ(STUN_ERROR_BAD_REQUEST, port->last_stun_error_code());
2216
2217 // BINDING-REQUEST with empty username.
Steve Anton11358fe2018-10-09 15:39:19 -07002218 in_msg = CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002219 in_msg->AddMessageIntegrity("rpass");
2220 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002221 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002222 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2223 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002224 EXPECT_TRUE(out_msg.get() == NULL);
2225 EXPECT_EQ("", username);
2226 EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code());
2227
2228 // BINDING-REQUEST with too-short username.
Steve Anton11358fe2018-10-09 15:39:19 -07002229 in_msg = CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfra");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002230 in_msg->AddMessageIntegrity("rpass");
2231 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002232 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002233 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2234 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002235 EXPECT_TRUE(out_msg.get() == NULL);
2236 EXPECT_EQ("", username);
2237 EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code());
2238
2239 // BINDING-REQUEST with reversed username.
Steve Anton11358fe2018-10-09 15:39:19 -07002240 in_msg = CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "lfrag:rfrag");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002241 in_msg->AddMessageIntegrity("rpass");
2242 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002243 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002244 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2245 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002246 EXPECT_TRUE(out_msg.get() == NULL);
2247 EXPECT_EQ("", username);
2248 EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code());
2249
2250 // BINDING-REQUEST with garbage username.
Steve Anton11358fe2018-10-09 15:39:19 -07002251 in_msg = CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "abcd:efgh");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002252 in_msg->AddMessageIntegrity("rpass");
2253 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002254 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002255 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2256 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002257 EXPECT_TRUE(out_msg.get() == NULL);
2258 EXPECT_EQ("", username);
2259 EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code());
2260}
2261
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002262// Test handling STUN messages with missing or malformed M-I.
2263TEST_F(PortTest, TestHandleStunMessageBadMessageIntegrity) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002264 // Our port will act as the "remote" port.
Steve Anton11358fe2018-10-09 15:39:19 -07002265 auto port = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002266
kwiberg3ec46792016-04-27 07:22:53 -07002267 std::unique_ptr<IceMessage> in_msg, out_msg;
Mirko Bonadei317a1f02019-09-17 17:06:18 +02002268 auto buf = std::make_unique<ByteBufferWriter>();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002269 rtc::SocketAddress addr(kLocalAddr1);
2270 std::string username;
2271
2272 // BINDING-REQUEST from local to remote with valid ICE username and
2273 // FINGERPRINT, but no MESSAGE-INTEGRITY.
Steve Anton11358fe2018-10-09 15:39:19 -07002274 in_msg = CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfrag:lfrag");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002275 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002276 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002277 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2278 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002279 EXPECT_TRUE(out_msg.get() == NULL);
2280 EXPECT_EQ("", username);
2281 EXPECT_EQ(STUN_ERROR_BAD_REQUEST, port->last_stun_error_code());
2282
2283 // BINDING-REQUEST from local to remote with valid ICE username and
2284 // FINGERPRINT, but invalid MESSAGE-INTEGRITY.
Steve Anton11358fe2018-10-09 15:39:19 -07002285 in_msg = CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfrag:lfrag");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002286 in_msg->AddMessageIntegrity("invalid");
2287 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002288 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002289 EXPECT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2290 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002291 EXPECT_TRUE(out_msg.get() == NULL);
2292 EXPECT_EQ("", username);
2293 EXPECT_EQ(STUN_ERROR_UNAUTHORIZED, port->last_stun_error_code());
2294
Steve Antonbabf9172017-11-29 10:19:02 -08002295 // TODO(?): BINDING-RESPONSES and BINDING-ERROR-RESPONSES are checked
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002296 // by the Connection, not the Port, since they require the remote username.
2297 // Change this test to pass in data via Connection::OnReadPacket instead.
2298}
2299
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002300// Test handling STUN messages with missing or malformed FINGERPRINT.
2301TEST_F(PortTest, TestHandleStunMessageBadFingerprint) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002302 // Our port will act as the "remote" port.
Steve Anton11358fe2018-10-09 15:39:19 -07002303 auto port = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002304
kwiberg3ec46792016-04-27 07:22:53 -07002305 std::unique_ptr<IceMessage> in_msg, out_msg;
Mirko Bonadei317a1f02019-09-17 17:06:18 +02002306 auto buf = std::make_unique<ByteBufferWriter>();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002307 rtc::SocketAddress addr(kLocalAddr1);
2308 std::string username;
2309
2310 // BINDING-REQUEST from local to remote with valid ICE username and
2311 // MESSAGE-INTEGRITY, but no FINGERPRINT; GetStunMessage should fail.
Steve Anton11358fe2018-10-09 15:39:19 -07002312 in_msg = CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfrag:lfrag");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002313 in_msg->AddMessageIntegrity("rpass");
Steve Anton11358fe2018-10-09 15:39:19 -07002314 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002315 EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2316 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002317 EXPECT_EQ(0, port->last_stun_error_code());
2318
2319 // Now, add a fingerprint, but munge the message so it's not valid.
2320 in_msg->AddFingerprint();
Tommi408143d2022-06-01 15:29:31 +02002321 in_msg->SetTransactionIdForTesting("TESTTESTBADD");
Steve Anton11358fe2018-10-09 15:39:19 -07002322 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002323 EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2324 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002325 EXPECT_EQ(0, port->last_stun_error_code());
2326
2327 // Valid BINDING-RESPONSE, except no FINGERPRINT.
Steve Anton11358fe2018-10-09 15:39:19 -07002328 in_msg = CreateStunMessage(STUN_BINDING_RESPONSE);
Mirko Bonadei317a1f02019-09-17 17:06:18 +02002329 in_msg->AddAttribute(std::make_unique<StunXorAddressAttribute>(
zsteinf42cc9d2017-03-27 16:17:19 -07002330 STUN_ATTR_XOR_MAPPED_ADDRESS, kLocalAddr2));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002331 in_msg->AddMessageIntegrity("rpass");
Steve Anton11358fe2018-10-09 15:39:19 -07002332 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002333 EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2334 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002335 EXPECT_EQ(0, port->last_stun_error_code());
2336
2337 // Now, add a fingerprint, but munge the message so it's not valid.
2338 in_msg->AddFingerprint();
Tommi408143d2022-06-01 15:29:31 +02002339 in_msg->SetTransactionIdForTesting("TESTTESTBADD");
Steve Anton11358fe2018-10-09 15:39:19 -07002340 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002341 EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2342 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002343 EXPECT_EQ(0, port->last_stun_error_code());
2344
2345 // Valid BINDING-ERROR-RESPONSE, except no FINGERPRINT.
Steve Anton11358fe2018-10-09 15:39:19 -07002346 in_msg = CreateStunMessage(STUN_BINDING_ERROR_RESPONSE);
Mirko Bonadei317a1f02019-09-17 17:06:18 +02002347 in_msg->AddAttribute(std::make_unique<StunErrorCodeAttribute>(
zsteinf42cc9d2017-03-27 16:17:19 -07002348 STUN_ATTR_ERROR_CODE, STUN_ERROR_SERVER_ERROR,
2349 STUN_ERROR_REASON_SERVER_ERROR));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002350 in_msg->AddMessageIntegrity("rpass");
Steve Anton11358fe2018-10-09 15:39:19 -07002351 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002352 EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2353 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002354 EXPECT_EQ(0, port->last_stun_error_code());
2355
2356 // Now, add a fingerprint, but munge the message so it's not valid.
2357 in_msg->AddFingerprint();
Tommi408143d2022-06-01 15:29:31 +02002358 in_msg->SetTransactionIdForTesting("TESTTESTBADD");
Steve Anton11358fe2018-10-09 15:39:19 -07002359 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002360 EXPECT_FALSE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2361 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002362 EXPECT_EQ(0, port->last_stun_error_code());
2363}
2364
Taylor Brandstetterfb4351b2020-03-23 16:00:31 -07002365// Test handling a STUN message with unknown attributes in the
2366// "comprehension-required" range. Should respond with an error with the
2367// unknown attributes' IDs.
2368TEST_F(PortTest,
2369 TestHandleStunRequestWithUnknownComprehensionRequiredAttribute) {
2370 // Our port will act as the "remote" port.
2371 std::unique_ptr<TestPort> port(CreateTestPort(kLocalAddr2, "rfrag", "rpass"));
2372
2373 std::unique_ptr<IceMessage> in_msg, out_msg;
2374 auto buf = std::make_unique<ByteBufferWriter>();
2375 rtc::SocketAddress addr(kLocalAddr1);
2376 std::string username;
2377
2378 // Build ordinary message with valid ufrag/pass.
2379 in_msg = CreateStunMessageWithUsername(STUN_BINDING_REQUEST, "rfrag:lfrag");
2380 in_msg->AddMessageIntegrity("rpass");
2381 // Add a couple attributes with ID in comprehension-required range.
2382 in_msg->AddAttribute(StunAttribute::CreateUInt32(0x7777));
2383 in_msg->AddAttribute(StunAttribute::CreateUInt32(0x4567));
2384 // ... And one outside the range.
2385 in_msg->AddAttribute(StunAttribute::CreateUInt32(0xdead));
2386 in_msg->AddFingerprint();
2387 WriteStunMessage(*in_msg, buf.get());
2388 ASSERT_TRUE(port->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2389 &username));
2390 IceMessage* error_response = port->last_stun_msg();
2391 ASSERT_NE(nullptr, error_response);
2392
2393 // Verify that the "unknown attribute" error response has the right error
2394 // code, and includes an attribute that lists out the unrecognized attribute
2395 // types.
2396 EXPECT_EQ(STUN_ERROR_UNKNOWN_ATTRIBUTE, error_response->GetErrorCodeValue());
2397 const StunUInt16ListAttribute* unknown_attributes =
2398 error_response->GetUnknownAttributes();
2399 ASSERT_NE(nullptr, unknown_attributes);
2400 ASSERT_EQ(2u, unknown_attributes->Size());
2401 EXPECT_EQ(0x7777, unknown_attributes->GetType(0));
2402 EXPECT_EQ(0x4567, unknown_attributes->GetType(1));
2403}
2404
2405// Similar to the above, but with a response instead of a request. In this
2406// case the response should just be ignored and transaction treated is failed.
2407TEST_F(PortTest,
2408 TestHandleStunResponseWithUnknownComprehensionRequiredAttribute) {
2409 // Generic setup.
2410 auto lport = CreateTestPort(kLocalAddr1, "lfrag", "lpass");
2411 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
2412 auto rport = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
2413 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
2414 lport->PrepareAddress();
2415 rport->PrepareAddress();
2416 ASSERT_FALSE(lport->Candidates().empty());
2417 ASSERT_FALSE(rport->Candidates().empty());
2418 Connection* lconn =
2419 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
2420 Connection* rconn =
2421 rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
2422
2423 // Send request.
2424 lconn->Ping(0);
2425 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
2426 rconn->OnReadPacket(lport->last_stun_buf()->data<char>(),
2427 lport->last_stun_buf()->size(), /* packet_time_us */ -1);
2428
2429 // Intercept request and add comprehension required attribute.
2430 ASSERT_TRUE_WAIT(rport->last_stun_msg() != NULL, kDefaultTimeout);
2431 auto modified_response = rport->last_stun_msg()->Clone();
2432 modified_response->AddAttribute(StunAttribute::CreateUInt32(0x7777));
2433 modified_response->RemoveAttribute(STUN_ATTR_FINGERPRINT);
2434 modified_response->AddFingerprint();
2435 ByteBufferWriter buf;
2436 WriteStunMessage(*modified_response, &buf);
2437 lconn->OnReadPacket(buf.Data(), buf.Length(), /* packet_time_us */ -1);
2438 // Response should have been ignored, leaving us unwritable still.
2439 EXPECT_FALSE(lconn->writable());
2440}
2441
2442// Similar to the above, but with an indication. As with a response, it should
2443// just be ignored.
2444TEST_F(PortTest,
2445 TestHandleStunIndicationWithUnknownComprehensionRequiredAttribute) {
2446 // Generic set up.
2447 auto lport = CreateTestPort(kLocalAddr2, "lfrag", "lpass");
2448 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
2449 auto rport = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
2450 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
2451 lport->PrepareAddress();
2452 rport->PrepareAddress();
2453 ASSERT_FALSE(lport->Candidates().empty());
2454 ASSERT_FALSE(rport->Candidates().empty());
2455 Connection* lconn =
2456 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
2457
2458 // Generate indication with comprehension required attribute and verify it
2459 // doesn't update last_ping_received.
2460 auto in_msg = CreateStunMessage(STUN_BINDING_INDICATION);
2461 in_msg->AddAttribute(StunAttribute::CreateUInt32(0x7777));
2462 in_msg->AddFingerprint();
2463 ByteBufferWriter buf;
2464 WriteStunMessage(*in_msg, &buf);
2465 lconn->OnReadPacket(buf.Data(), buf.Length(), /* packet_time_us */ -1);
2466 EXPECT_EQ(0u, lconn->last_ping_received());
2467}
2468
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002469// Test handling of STUN binding indication messages . STUN binding
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002470// indications are allowed only to the connection which is in read mode.
2471TEST_F(PortTest, TestHandleStunBindingIndication) {
Steve Anton11358fe2018-10-09 15:39:19 -07002472 auto lport = CreateTestPort(kLocalAddr2, "lfrag", "lpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002473 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
2474 lport->SetIceTiebreaker(kTiebreaker1);
2475
2476 // Verifying encoding and decoding STUN indication message.
kwiberg3ec46792016-04-27 07:22:53 -07002477 std::unique_ptr<IceMessage> in_msg, out_msg;
2478 std::unique_ptr<ByteBufferWriter> buf(new ByteBufferWriter());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002479 rtc::SocketAddress addr(kLocalAddr1);
2480 std::string username;
2481
Steve Anton11358fe2018-10-09 15:39:19 -07002482 in_msg = CreateStunMessage(STUN_BINDING_INDICATION);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002483 in_msg->AddFingerprint();
Steve Anton11358fe2018-10-09 15:39:19 -07002484 WriteStunMessage(*in_msg, buf.get());
kwiberg6baec032016-03-15 11:09:39 -07002485 EXPECT_TRUE(lport->GetStunMessage(buf->Data(), buf->Length(), addr, &out_msg,
2486 &username));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002487 EXPECT_TRUE(out_msg.get() != NULL);
2488 EXPECT_EQ(out_msg->type(), STUN_BINDING_INDICATION);
2489 EXPECT_EQ("", username);
2490
2491 // Verify connection can handle STUN indication and updates
2492 // last_ping_received.
Steve Anton11358fe2018-10-09 15:39:19 -07002493 auto rport = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002494 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
2495 rport->SetIceTiebreaker(kTiebreaker2);
2496
2497 lport->PrepareAddress();
2498 rport->PrepareAddress();
2499 ASSERT_FALSE(lport->Candidates().empty());
2500 ASSERT_FALSE(rport->Candidates().empty());
2501
Yves Gerey665174f2018-06-19 15:03:05 +02002502 Connection* lconn =
2503 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
2504 Connection* rconn =
2505 rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002506 rconn->Ping(0);
2507
Honghai Zhang161a5862016-10-20 11:47:02 -07002508 ASSERT_TRUE_WAIT(rport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002509 IceMessage* msg = rport->last_stun_msg();
2510 EXPECT_EQ(STUN_BINDING_REQUEST, msg->type());
2511 // Send rport binding request to lport.
jbauchf1f87202016-03-30 06:43:37 -07002512 lconn->OnReadPacket(rport->last_stun_buf()->data<char>(),
Niels Möllere6933812018-11-05 13:01:41 +01002513 rport->last_stun_buf()->size(), /* packet_time_us */ -1);
Honghai Zhang161a5862016-10-20 11:47:02 -07002514 ASSERT_TRUE_WAIT(lport->last_stun_msg() != NULL, kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002515 EXPECT_EQ(STUN_BINDING_RESPONSE, lport->last_stun_msg()->type());
honghaiz34b11eb2016-03-16 08:55:44 -07002516 int64_t last_ping_received1 = lconn->last_ping_received();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002517
2518 // Adding a delay of 100ms.
2519 rtc::Thread::Current()->ProcessMessages(100);
2520 // Pinging lconn using stun indication message.
Niels Möllere6933812018-11-05 13:01:41 +01002521 lconn->OnReadPacket(buf->Data(), buf->Length(), /* packet_time_us */ -1);
honghaiz34b11eb2016-03-16 08:55:44 -07002522 int64_t last_ping_received2 = lconn->last_ping_received();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002523 EXPECT_GT(last_ping_received2, last_ping_received1);
2524}
2525
2526TEST_F(PortTest, TestComputeCandidatePriority) {
Steve Anton11358fe2018-10-09 15:39:19 -07002527 auto port = CreateTestPort(kLocalAddr1, "name", "pass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002528 port->set_type_preference(90);
2529 port->set_component(177);
2530 port->AddCandidateAddress(SocketAddress("192.168.1.4", 1234));
2531 port->AddCandidateAddress(SocketAddress("2001:db8::1234", 1234));
2532 port->AddCandidateAddress(SocketAddress("fc12:3456::1234", 1234));
2533 port->AddCandidateAddress(SocketAddress("::ffff:192.168.1.4", 1234));
2534 port->AddCandidateAddress(SocketAddress("::192.168.1.4", 1234));
2535 port->AddCandidateAddress(SocketAddress("2002::1234:5678", 1234));
2536 port->AddCandidateAddress(SocketAddress("2001::1234:5678", 1234));
2537 port->AddCandidateAddress(SocketAddress("fecf::1234:5678", 1234));
2538 port->AddCandidateAddress(SocketAddress("3ffe::1234:5678", 1234));
2539 // These should all be:
2540 // (90 << 24) | ([rfc3484 pref value] << 8) | (256 - 177)
Peter Boström0c4e06b2015-10-07 12:23:21 +02002541 uint32_t expected_priority_v4 = 1509957199U;
2542 uint32_t expected_priority_v6 = 1509959759U;
2543 uint32_t expected_priority_ula = 1509962319U;
2544 uint32_t expected_priority_v4mapped = expected_priority_v4;
2545 uint32_t expected_priority_v4compat = 1509949775U;
2546 uint32_t expected_priority_6to4 = 1509954639U;
2547 uint32_t expected_priority_teredo = 1509952079U;
2548 uint32_t expected_priority_sitelocal = 1509949775U;
2549 uint32_t expected_priority_6bone = 1509949775U;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002550 ASSERT_EQ(expected_priority_v4, port->Candidates()[0].priority());
2551 ASSERT_EQ(expected_priority_v6, port->Candidates()[1].priority());
2552 ASSERT_EQ(expected_priority_ula, port->Candidates()[2].priority());
2553 ASSERT_EQ(expected_priority_v4mapped, port->Candidates()[3].priority());
2554 ASSERT_EQ(expected_priority_v4compat, port->Candidates()[4].priority());
2555 ASSERT_EQ(expected_priority_6to4, port->Candidates()[5].priority());
2556 ASSERT_EQ(expected_priority_teredo, port->Candidates()[6].priority());
2557 ASSERT_EQ(expected_priority_sitelocal, port->Candidates()[7].priority());
2558 ASSERT_EQ(expected_priority_6bone, port->Candidates()[8].priority());
2559}
2560
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002561// In the case of shared socket, one port may be shared by local and stun.
2562// Test that candidates with different types will have different foundation.
2563TEST_F(PortTest, TestFoundation) {
Steve Anton11358fe2018-10-09 15:39:19 -07002564 auto testport = CreateTestPort(kLocalAddr1, "name", "pass");
Yves Gerey665174f2018-06-19 15:03:05 +02002565 testport->AddCandidateAddress(kLocalAddr1, kLocalAddr1, LOCAL_PORT_TYPE,
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002566 cricket::ICE_TYPE_PREFERENCE_HOST, false);
Yves Gerey665174f2018-06-19 15:03:05 +02002567 testport->AddCandidateAddress(kLocalAddr2, kLocalAddr1, STUN_PORT_TYPE,
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002568 cricket::ICE_TYPE_PREFERENCE_SRFLX, true);
2569 EXPECT_NE(testport->Candidates()[0].foundation(),
2570 testport->Candidates()[1].foundation());
2571}
2572
2573// This test verifies the foundation of different types of ICE candidates.
2574TEST_F(PortTest, TestCandidateFoundation) {
kwiberg3ec46792016-04-27 07:22:53 -07002575 std::unique_ptr<rtc::NATServer> nat_server(
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002576 CreateNatServer(kNatAddr1, NAT_OPEN_CONE));
Steve Anton11358fe2018-10-09 15:39:19 -07002577 auto udpport1 = CreateUdpPort(kLocalAddr1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002578 udpport1->PrepareAddress();
Steve Anton11358fe2018-10-09 15:39:19 -07002579 auto udpport2 = CreateUdpPort(kLocalAddr1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002580 udpport2->PrepareAddress();
2581 EXPECT_EQ(udpport1->Candidates()[0].foundation(),
2582 udpport2->Candidates()[0].foundation());
Steve Anton11358fe2018-10-09 15:39:19 -07002583 auto tcpport1 = CreateTcpPort(kLocalAddr1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002584 tcpport1->PrepareAddress();
Steve Anton11358fe2018-10-09 15:39:19 -07002585 auto tcpport2 = CreateTcpPort(kLocalAddr1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002586 tcpport2->PrepareAddress();
2587 EXPECT_EQ(tcpport1->Candidates()[0].foundation(),
2588 tcpport2->Candidates()[0].foundation());
Steve Anton11358fe2018-10-09 15:39:19 -07002589 auto stunport = CreateStunPort(kLocalAddr1, nat_socket_factory1());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002590 stunport->PrepareAddress();
Honghai Zhang161a5862016-10-20 11:47:02 -07002591 ASSERT_EQ_WAIT(1U, stunport->Candidates().size(), kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002592 EXPECT_NE(tcpport1->Candidates()[0].foundation(),
2593 stunport->Candidates()[0].foundation());
2594 EXPECT_NE(tcpport2->Candidates()[0].foundation(),
2595 stunport->Candidates()[0].foundation());
2596 EXPECT_NE(udpport1->Candidates()[0].foundation(),
2597 stunport->Candidates()[0].foundation());
2598 EXPECT_NE(udpport2->Candidates()[0].foundation(),
2599 stunport->Candidates()[0].foundation());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002600 // Verifying TURN candidate foundation.
Steve Anton11358fe2018-10-09 15:39:19 -07002601 auto turnport1 =
2602 CreateTurnPort(kLocalAddr1, nat_socket_factory1(), PROTO_UDP, PROTO_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002603 turnport1->PrepareAddress();
Honghai Zhang161a5862016-10-20 11:47:02 -07002604 ASSERT_EQ_WAIT(1U, turnport1->Candidates().size(), kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002605 EXPECT_NE(udpport1->Candidates()[0].foundation(),
2606 turnport1->Candidates()[0].foundation());
2607 EXPECT_NE(udpport2->Candidates()[0].foundation(),
2608 turnport1->Candidates()[0].foundation());
2609 EXPECT_NE(stunport->Candidates()[0].foundation(),
2610 turnport1->Candidates()[0].foundation());
Steve Anton11358fe2018-10-09 15:39:19 -07002611 auto turnport2 =
2612 CreateTurnPort(kLocalAddr1, nat_socket_factory1(), PROTO_UDP, PROTO_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002613 turnport2->PrepareAddress();
Honghai Zhang161a5862016-10-20 11:47:02 -07002614 ASSERT_EQ_WAIT(1U, turnport2->Candidates().size(), kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002615 EXPECT_EQ(turnport1->Candidates()[0].foundation(),
2616 turnport2->Candidates()[0].foundation());
2617
2618 // Running a second turn server, to get different base IP address.
2619 SocketAddress kTurnUdpIntAddr2("99.99.98.4", STUN_SERVER_PORT);
2620 SocketAddress kTurnUdpExtAddr2("99.99.98.5", 0);
Niels Möller6dd49972021-11-24 14:05:55 +01002621 TestTurnServer turn_server2(rtc::Thread::Current(), vss(), kTurnUdpIntAddr2,
Yves Gerey665174f2018-06-19 15:03:05 +02002622 kTurnUdpExtAddr2);
Steve Anton11358fe2018-10-09 15:39:19 -07002623 auto turnport3 = CreateTurnPort(kLocalAddr1, nat_socket_factory1(), PROTO_UDP,
2624 PROTO_UDP, kTurnUdpIntAddr2);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002625 turnport3->PrepareAddress();
Honghai Zhang161a5862016-10-20 11:47:02 -07002626 ASSERT_EQ_WAIT(1U, turnport3->Candidates().size(), kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002627 EXPECT_NE(turnport3->Candidates()[0].foundation(),
2628 turnport2->Candidates()[0].foundation());
Honghai Zhang80f1db92016-01-27 11:54:45 -08002629
2630 // Start a TCP turn server, and check that two turn candidates have
2631 // different foundations if their relay protocols are different.
Niels Möller6dd49972021-11-24 14:05:55 +01002632 TestTurnServer turn_server3(rtc::Thread::Current(), vss(), kTurnTcpIntAddr,
Honghai Zhang80f1db92016-01-27 11:54:45 -08002633 kTurnUdpExtAddr, PROTO_TCP);
Steve Anton11358fe2018-10-09 15:39:19 -07002634 auto turnport4 =
2635 CreateTurnPort(kLocalAddr1, nat_socket_factory1(), PROTO_TCP, PROTO_UDP);
Honghai Zhang80f1db92016-01-27 11:54:45 -08002636 turnport4->PrepareAddress();
Honghai Zhang161a5862016-10-20 11:47:02 -07002637 ASSERT_EQ_WAIT(1U, turnport4->Candidates().size(), kDefaultTimeout);
Honghai Zhang80f1db92016-01-27 11:54:45 -08002638 EXPECT_NE(turnport2->Candidates()[0].foundation(),
2639 turnport4->Candidates()[0].foundation());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002640}
2641
2642// This test verifies the related addresses of different types of
David Sanders60c588d2022-03-19 01:43:10 -07002643// ICE candidates.
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002644TEST_F(PortTest, TestCandidateRelatedAddress) {
Steve Anton11358fe2018-10-09 15:39:19 -07002645 auto nat_server = CreateNatServer(kNatAddr1, NAT_OPEN_CONE);
2646 auto udpport = CreateUdpPort(kLocalAddr1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002647 udpport->PrepareAddress();
2648 // For UDPPort, related address will be empty.
2649 EXPECT_TRUE(udpport->Candidates()[0].related_address().IsNil());
2650 // Testing related address for stun candidates.
2651 // For stun candidate related address must be equal to the base
2652 // socket address.
Steve Anton11358fe2018-10-09 15:39:19 -07002653 auto stunport = CreateStunPort(kLocalAddr1, nat_socket_factory1());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002654 stunport->PrepareAddress();
Honghai Zhang161a5862016-10-20 11:47:02 -07002655 ASSERT_EQ_WAIT(1U, stunport->Candidates().size(), kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002656 // Check STUN candidate address.
Yves Gerey665174f2018-06-19 15:03:05 +02002657 EXPECT_EQ(stunport->Candidates()[0].address().ipaddr(), kNatAddr1.ipaddr());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002658 // Check STUN candidate related address.
2659 EXPECT_EQ(stunport->Candidates()[0].related_address(),
2660 stunport->GetLocalAddress());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002661 // Verifying the related address for TURN candidate.
2662 // For TURN related address must be equal to the mapped address.
Steve Anton11358fe2018-10-09 15:39:19 -07002663 auto turnport =
2664 CreateTurnPort(kLocalAddr1, nat_socket_factory1(), PROTO_UDP, PROTO_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002665 turnport->PrepareAddress();
Honghai Zhang161a5862016-10-20 11:47:02 -07002666 ASSERT_EQ_WAIT(1U, turnport->Candidates().size(), kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002667 EXPECT_EQ(kTurnUdpExtAddr.ipaddr(),
2668 turnport->Candidates()[0].address().ipaddr());
2669 EXPECT_EQ(kNatAddr1.ipaddr(),
2670 turnport->Candidates()[0].related_address().ipaddr());
2671}
2672
2673// Test priority value overflow handling when preference is set to 3.
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002674TEST_F(PortTest, TestCandidatePriority) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002675 cricket::Candidate cand1;
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002676 cand1.set_priority(3);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002677 cricket::Candidate cand2;
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002678 cand2.set_priority(1);
2679 EXPECT_TRUE(cand1.priority() > cand2.priority());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002680}
2681
2682// Test the Connection priority is calculated correctly.
2683TEST_F(PortTest, TestConnectionPriority) {
Steve Anton11358fe2018-10-09 15:39:19 -07002684 auto lport = CreateTestPort(kLocalAddr1, "lfrag", "lpass");
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002685 lport->set_type_preference(cricket::ICE_TYPE_PREFERENCE_HOST);
Steve Anton11358fe2018-10-09 15:39:19 -07002686 auto rport = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
hnsl277b2502016-12-13 05:17:23 -08002687 rport->set_type_preference(cricket::ICE_TYPE_PREFERENCE_RELAY_UDP);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002688 lport->set_component(123);
2689 lport->AddCandidateAddress(SocketAddress("192.168.1.4", 1234));
2690 rport->set_component(23);
2691 rport->AddCandidateAddress(SocketAddress("10.1.1.100", 1234));
2692
2693 EXPECT_EQ(0x7E001E85U, lport->Candidates()[0].priority());
2694 EXPECT_EQ(0x2001EE9U, rport->Candidates()[0].priority());
2695
2696 // RFC 5245
2697 // pair priority = 2^32*MIN(G,D) + 2*MAX(G,D) + (G>D?1:0)
2698 lport->SetIceRole(cricket::ICEROLE_CONTROLLING);
2699 rport->SetIceRole(cricket::ICEROLE_CONTROLLED);
Yves Gerey665174f2018-06-19 15:03:05 +02002700 Connection* lconn =
2701 lport->CreateConnection(rport->Candidates()[0], Port::ORIGIN_MESSAGE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002702#if defined(WEBRTC_WIN)
2703 EXPECT_EQ(0x2001EE9FC003D0BU, lconn->priority());
2704#else
2705 EXPECT_EQ(0x2001EE9FC003D0BLLU, lconn->priority());
2706#endif
2707
2708 lport->SetIceRole(cricket::ICEROLE_CONTROLLED);
2709 rport->SetIceRole(cricket::ICEROLE_CONTROLLING);
Yves Gerey665174f2018-06-19 15:03:05 +02002710 Connection* rconn =
2711 rport->CreateConnection(lport->Candidates()[0], Port::ORIGIN_MESSAGE);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002712#if defined(WEBRTC_WIN)
2713 EXPECT_EQ(0x2001EE9FC003D0AU, rconn->priority());
2714#else
2715 EXPECT_EQ(0x2001EE9FC003D0ALLU, rconn->priority());
2716#endif
2717}
2718
Qingsi Wang22e623a2018-03-13 10:53:57 -07002719// Note that UpdateState takes into account the estimated RTT, and the
Artem Titov2dbb4c92021-07-26 15:12:41 +02002720// correctness of using `kMaxExpectedSimulatedRtt` as an upper bound of RTT in
Qingsi Wang22e623a2018-03-13 10:53:57 -07002721// the following tests depends on the link rate and the delay distriubtion
2722// configured in VirtualSocketServer::AddPacketToNetwork. The tests below use
2723// the default setup where the RTT is deterministically one, which generates an
Artem Titov2dbb4c92021-07-26 15:12:41 +02002724// estimate given by `MINIMUM_RTT` = 100.
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002725TEST_F(PortTest, TestWritableState) {
Honghai Zhang161a5862016-10-20 11:47:02 -07002726 rtc::ScopedFakeClock clock;
Steve Anton11358fe2018-10-09 15:39:19 -07002727 auto port1 = CreateUdpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002728 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Steve Anton11358fe2018-10-09 15:39:19 -07002729 auto port2 = CreateUdpPort(kLocalAddr2);
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002730 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002731
2732 // Set up channels.
Steve Anton11358fe2018-10-09 15:39:19 -07002733 TestChannel ch1(std::move(port1));
2734 TestChannel ch2(std::move(port2));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002735
2736 // Acquire addresses.
2737 ch1.Start();
2738 ch2.Start();
Honghai Zhang161a5862016-10-20 11:47:02 -07002739 ASSERT_EQ_SIMULATED_WAIT(1, ch1.complete_count(), kDefaultTimeout, clock);
2740 ASSERT_EQ_SIMULATED_WAIT(1, ch2.complete_count(), kDefaultTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002741
2742 // Send a ping from src to dst.
Steve Anton11358fe2018-10-09 15:39:19 -07002743 ch1.CreateConnection(GetCandidate(ch2.port()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002744 ASSERT_TRUE(ch1.conn() != NULL);
2745 EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state());
Honghai Zhang161a5862016-10-20 11:47:02 -07002746 // for TCP connect
2747 EXPECT_TRUE_SIMULATED_WAIT(ch1.conn()->connected(), kDefaultTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002748 ch1.Ping();
Honghai Zhang161a5862016-10-20 11:47:02 -07002749 SIMULATED_WAIT(!ch2.remote_address().IsNil(), kShortTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002750
Taylor Brandstetter6bb1ef22016-06-27 18:09:03 -07002751 // Data should be sendable before the connection is accepted.
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002752 char data[] = "abcd";
tfarina5237aaf2015-11-10 23:44:30 -08002753 int data_size = arraysize(data);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002754 rtc::PacketOptions options;
Taylor Brandstetter6bb1ef22016-06-27 18:09:03 -07002755 EXPECT_EQ(data_size, ch1.conn()->Send(data, data_size, options));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002756
2757 // Accept the connection to return the binding response, transition to
2758 // writable, and allow data to be sent.
Steve Anton11358fe2018-10-09 15:39:19 -07002759 ch2.AcceptConnection(GetCandidate(ch1.port()));
Honghai Zhang161a5862016-10-20 11:47:02 -07002760 EXPECT_EQ_SIMULATED_WAIT(Connection::STATE_WRITABLE,
2761 ch1.conn()->write_state(), kDefaultTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002762 EXPECT_EQ(data_size, ch1.conn()->Send(data, data_size, options));
2763
2764 // Ask the connection to update state as if enough time has passed to lose
2765 // full writability and 5 pings went unresponded to. We'll accomplish the
2766 // latter by sending pings but not pumping messages.
Peter Boström0c4e06b2015-10-07 12:23:21 +02002767 for (uint32_t i = 1; i <= CONNECTION_WRITE_CONNECT_FAILURES; ++i) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002768 ch1.Ping(i);
2769 }
Qingsi Wang22e623a2018-03-13 10:53:57 -07002770 int unreliable_timeout_delay =
2771 CONNECTION_WRITE_CONNECT_TIMEOUT + kMaxExpectedSimulatedRtt;
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002772 ch1.conn()->UpdateState(unreliable_timeout_delay);
2773 EXPECT_EQ(Connection::STATE_WRITE_UNRELIABLE, ch1.conn()->write_state());
2774
2775 // Data should be able to be sent in this state.
2776 EXPECT_EQ(data_size, ch1.conn()->Send(data, data_size, options));
2777
2778 // And now allow the other side to process the pings and send binding
2779 // responses.
Honghai Zhang161a5862016-10-20 11:47:02 -07002780 EXPECT_EQ_SIMULATED_WAIT(Connection::STATE_WRITABLE,
2781 ch1.conn()->write_state(), kDefaultTimeout, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002782 // Wait long enough for a full timeout (past however long we've already
2783 // waited).
Peter Boström0c4e06b2015-10-07 12:23:21 +02002784 for (uint32_t i = 1; i <= CONNECTION_WRITE_CONNECT_FAILURES; ++i) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002785 ch1.Ping(unreliable_timeout_delay + i);
2786 }
2787 ch1.conn()->UpdateState(unreliable_timeout_delay + CONNECTION_WRITE_TIMEOUT +
Qingsi Wang22e623a2018-03-13 10:53:57 -07002788 kMaxExpectedSimulatedRtt);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002789 EXPECT_EQ(Connection::STATE_WRITE_TIMEOUT, ch1.conn()->write_state());
2790
Taylor Brandstetter6bb1ef22016-06-27 18:09:03 -07002791 // Even if the connection has timed out, the Connection shouldn't block
2792 // the sending of data.
2793 EXPECT_EQ(data_size, ch1.conn()->Send(data, data_size, options));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002794
2795 ch1.Stop();
2796 ch2.Stop();
2797}
2798
Qingsi Wang22e623a2018-03-13 10:53:57 -07002799// Test writability states using the configured threshold value to replace
Artem Titov2dbb4c92021-07-26 15:12:41 +02002800// the default value given by `CONNECTION_WRITE_CONNECT_TIMEOUT` and
2801// `CONNECTION_WRITE_CONNECT_FAILURES`.
Qingsi Wang22e623a2018-03-13 10:53:57 -07002802TEST_F(PortTest, TestWritableStateWithConfiguredThreshold) {
2803 rtc::ScopedFakeClock clock;
Steve Anton11358fe2018-10-09 15:39:19 -07002804 auto port1 = CreateUdpPort(kLocalAddr1);
Qingsi Wang22e623a2018-03-13 10:53:57 -07002805 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Steve Anton11358fe2018-10-09 15:39:19 -07002806 auto port2 = CreateUdpPort(kLocalAddr2);
Qingsi Wang22e623a2018-03-13 10:53:57 -07002807 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
2808
2809 // Set up channels.
Steve Anton11358fe2018-10-09 15:39:19 -07002810 TestChannel ch1(std::move(port1));
2811 TestChannel ch2(std::move(port2));
Qingsi Wang22e623a2018-03-13 10:53:57 -07002812
2813 // Acquire addresses.
2814 ch1.Start();
2815 ch2.Start();
2816 ASSERT_EQ_SIMULATED_WAIT(1, ch1.complete_count(), kDefaultTimeout, clock);
2817 ASSERT_EQ_SIMULATED_WAIT(1, ch2.complete_count(), kDefaultTimeout, clock);
2818
2819 // Send a ping from src to dst.
Steve Anton11358fe2018-10-09 15:39:19 -07002820 ch1.CreateConnection(GetCandidate(ch2.port()));
Qingsi Wang22e623a2018-03-13 10:53:57 -07002821 ASSERT_TRUE(ch1.conn() != NULL);
2822 ch1.Ping();
2823 SIMULATED_WAIT(!ch2.remote_address().IsNil(), kShortTimeout, clock);
2824
2825 // Accept the connection to return the binding response, transition to
2826 // writable, and allow data to be sent.
Steve Anton11358fe2018-10-09 15:39:19 -07002827 ch2.AcceptConnection(GetCandidate(ch1.port()));
Qingsi Wang22e623a2018-03-13 10:53:57 -07002828 EXPECT_EQ_SIMULATED_WAIT(Connection::STATE_WRITABLE,
2829 ch1.conn()->write_state(), kDefaultTimeout, clock);
2830
2831 ch1.conn()->set_unwritable_timeout(1000);
2832 ch1.conn()->set_unwritable_min_checks(3);
2833 // Send two checks.
2834 ch1.Ping(1);
2835 ch1.Ping(2);
2836 // We have not reached the timeout nor have we sent the minimum number of
2837 // checks to change the state to Unreliable.
2838 ch1.conn()->UpdateState(999);
2839 EXPECT_EQ(Connection::STATE_WRITABLE, ch1.conn()->write_state());
2840 // We have not sent the minimum number of checks without responses.
2841 ch1.conn()->UpdateState(1000 + kMaxExpectedSimulatedRtt);
2842 EXPECT_EQ(Connection::STATE_WRITABLE, ch1.conn()->write_state());
2843 // Last ping after which the candidate pair should become Unreliable after
2844 // timeout.
2845 ch1.Ping(3);
2846 // We have not reached the timeout.
2847 ch1.conn()->UpdateState(999);
2848 EXPECT_EQ(Connection::STATE_WRITABLE, ch1.conn()->write_state());
2849 // We should be in the state Unreliable now.
2850 ch1.conn()->UpdateState(1000 + kMaxExpectedSimulatedRtt);
2851 EXPECT_EQ(Connection::STATE_WRITE_UNRELIABLE, ch1.conn()->write_state());
2852
2853 ch1.Stop();
2854 ch2.Stop();
2855}
2856
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002857TEST_F(PortTest, TestTimeoutForNeverWritable) {
Steve Anton11358fe2018-10-09 15:39:19 -07002858 auto port1 = CreateUdpPort(kLocalAddr1);
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002859 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
Steve Anton11358fe2018-10-09 15:39:19 -07002860 auto port2 = CreateUdpPort(kLocalAddr2);
Peter Thatcher7cbd1882015-09-17 18:54:52 -07002861 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002862
2863 // Set up channels.
Steve Anton11358fe2018-10-09 15:39:19 -07002864 TestChannel ch1(std::move(port1));
2865 TestChannel ch2(std::move(port2));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002866
2867 // Acquire addresses.
2868 ch1.Start();
2869 ch2.Start();
2870
Steve Anton11358fe2018-10-09 15:39:19 -07002871 ch1.CreateConnection(GetCandidate(ch2.port()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002872 ASSERT_TRUE(ch1.conn() != NULL);
2873 EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state());
2874
2875 // Attempt to go directly to write timeout.
Peter Boström0c4e06b2015-10-07 12:23:21 +02002876 for (uint32_t i = 1; i <= CONNECTION_WRITE_CONNECT_FAILURES; ++i) {
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002877 ch1.Ping(i);
2878 }
Qingsi Wang22e623a2018-03-13 10:53:57 -07002879 ch1.conn()->UpdateState(CONNECTION_WRITE_TIMEOUT + kMaxExpectedSimulatedRtt);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002880 EXPECT_EQ(Connection::STATE_WRITE_TIMEOUT, ch1.conn()->write_state());
2881}
2882
2883// This test verifies the connection setup between ICEMODE_FULL
2884// and ICEMODE_LITE.
Artem Titov2dbb4c92021-07-26 15:12:41 +02002885// In this test `ch1` behaves like FULL mode client and we have created
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002886// port which responds to the ping message just like LITE client.
2887TEST_F(PortTest, TestIceLiteConnectivity) {
Steve Anton11358fe2018-10-09 15:39:19 -07002888 auto ice_full_port =
Yves Gerey665174f2018-06-19 15:03:05 +02002889 CreateTestPort(kLocalAddr1, "lfrag", "lpass",
2890 cricket::ICEROLE_CONTROLLING, kTiebreaker1);
Steve Anton11358fe2018-10-09 15:39:19 -07002891 auto* ice_full_port_ptr = ice_full_port.get();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002892
Steve Anton11358fe2018-10-09 15:39:19 -07002893 auto ice_lite_port = CreateTestPort(
2894 kLocalAddr2, "rfrag", "rpass", cricket::ICEROLE_CONTROLLED, kTiebreaker2);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002895 // Setup TestChannel. This behaves like FULL mode client.
Steve Anton11358fe2018-10-09 15:39:19 -07002896 TestChannel ch1(std::move(ice_full_port));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002897 ch1.SetIceMode(ICEMODE_FULL);
2898
2899 // Start gathering candidates.
2900 ch1.Start();
2901 ice_lite_port->PrepareAddress();
2902
Honghai Zhang161a5862016-10-20 11:47:02 -07002903 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002904 ASSERT_FALSE(ice_lite_port->Candidates().empty());
2905
Guo-wei Shieh1eb87c72015-08-25 11:02:55 -07002906 ch1.CreateConnection(GetCandidate(ice_lite_port.get()));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002907 ASSERT_TRUE(ch1.conn() != NULL);
2908 EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state());
2909
2910 // Send ping from full mode client.
2911 // This ping must not have USE_CANDIDATE_ATTR.
2912 ch1.Ping();
2913
2914 // Verify stun ping is without USE_CANDIDATE_ATTR. Getting message directly
2915 // from port.
Steve Anton11358fe2018-10-09 15:39:19 -07002916 ASSERT_TRUE_WAIT(ice_full_port_ptr->last_stun_msg() != NULL, kDefaultTimeout);
2917 IceMessage* msg = ice_full_port_ptr->last_stun_msg();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002918 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) == NULL);
2919
2920 // Respond with a BINDING-RESPONSE from litemode client.
2921 // NOTE: Ideally we should't create connection at this stage from lite
2922 // port, as it should be done only after receiving ping with USE_CANDIDATE.
2923 // But we need a connection to send a response message.
Jonas Orelandd0036622019-11-29 15:58:13 +01002924 auto* con = ice_lite_port->CreateConnection(
2925 ice_full_port_ptr->Candidates()[0], cricket::Port::ORIGIN_MESSAGE);
Steve Anton11358fe2018-10-09 15:39:19 -07002926 std::unique_ptr<IceMessage> request = CopyStunMessage(*msg);
Jonas Oreland9a52bd72019-12-11 11:35:48 +01002927 con->SendStunBindingResponse(request.get());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002928
2929 // Feeding the respone message from litemode to the full mode connection.
jbauchf1f87202016-03-30 06:43:37 -07002930 ch1.conn()->OnReadPacket(ice_lite_port->last_stun_buf()->data<char>(),
2931 ice_lite_port->last_stun_buf()->size(),
Niels Möllere6933812018-11-05 13:01:41 +01002932 /* packet_time_us */ -1);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002933 // Verifying full mode connection becomes writable from the response.
2934 EXPECT_EQ_WAIT(Connection::STATE_WRITABLE, ch1.conn()->write_state(),
Honghai Zhang161a5862016-10-20 11:47:02 -07002935 kDefaultTimeout);
2936 EXPECT_TRUE_WAIT(ch1.nominated(), kDefaultTimeout);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002937
2938 // Clear existing stun messsages. Otherwise we will process old stun
2939 // message right after we send ping.
Steve Anton11358fe2018-10-09 15:39:19 -07002940 ice_full_port_ptr->Reset();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002941 // Send ping. This must have USE_CANDIDATE_ATTR.
2942 ch1.Ping();
Steve Anton11358fe2018-10-09 15:39:19 -07002943 ASSERT_TRUE_WAIT(ice_full_port_ptr->last_stun_msg() != NULL, kDefaultTimeout);
2944 msg = ice_full_port_ptr->last_stun_msg();
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00002945 EXPECT_TRUE(msg->GetByteString(STUN_ATTR_USE_CANDIDATE) != NULL);
2946 ch1.Stop();
2947}
2948
Jonas Oreland9a52bd72019-12-11 11:35:48 +01002949namespace {
2950
2951// Utility function for testing goog ping.
Jonas Oreland219d8ce2020-01-15 15:29:48 +01002952absl::optional<int> GetSupportedGoogPingVersion(const StunMessage* msg) {
2953 auto goog_misc = msg->GetUInt16List(STUN_ATTR_GOOG_MISC_INFO);
Jonas Oreland9a52bd72019-12-11 11:35:48 +01002954 if (goog_misc == nullptr) {
2955 return absl::nullopt;
2956 }
2957
Jonas Oreland219d8ce2020-01-15 15:29:48 +01002958 if (msg->type() == STUN_BINDING_REQUEST) {
2959 if (goog_misc->Size() <
2960 static_cast<int>(cricket::IceGoogMiscInfoBindingRequestAttributeIndex::
2961 SUPPORT_GOOG_PING_VERSION)) {
2962 return absl::nullopt;
2963 }
2964
2965 return goog_misc->GetType(
2966 static_cast<int>(cricket::IceGoogMiscInfoBindingRequestAttributeIndex::
2967 SUPPORT_GOOG_PING_VERSION));
Jonas Oreland9a52bd72019-12-11 11:35:48 +01002968 }
2969
Jonas Oreland219d8ce2020-01-15 15:29:48 +01002970 if (msg->type() == STUN_BINDING_RESPONSE) {
2971 if (goog_misc->Size() <
2972 static_cast<int>(cricket::IceGoogMiscInfoBindingResponseAttributeIndex::
2973 SUPPORT_GOOG_PING_VERSION)) {
2974 return absl::nullopt;
2975 }
2976
2977 return goog_misc->GetType(
2978 static_cast<int>(cricket::IceGoogMiscInfoBindingResponseAttributeIndex::
2979 SUPPORT_GOOG_PING_VERSION));
2980 }
2981 return absl::nullopt;
Jonas Oreland9a52bd72019-12-11 11:35:48 +01002982}
2983
2984} // namespace
2985
2986class GoogPingTest
2987 : public PortTest,
2988 public ::testing::WithParamInterface<std::pair<bool, bool>> {};
2989
2990// This test verifies the announce/enable on/off behavior
2991TEST_P(GoogPingTest, TestGoogPingAnnounceEnable) {
2992 IceFieldTrials trials;
2993 trials.announce_goog_ping = GetParam().first;
2994 trials.enable_goog_ping = GetParam().second;
2995 RTC_LOG(LS_INFO) << "Testing combination: "
Jonas Olssonb2b20312020-01-14 12:11:31 +01002996 " announce: "
2997 << trials.announce_goog_ping
Jonas Oreland9a52bd72019-12-11 11:35:48 +01002998 << " enable:" << trials.enable_goog_ping;
2999
3000 auto port1_unique =
3001 CreateTestPort(kLocalAddr1, "lfrag", "lpass",
3002 cricket::ICEROLE_CONTROLLING, kTiebreaker1);
3003 auto* port1 = port1_unique.get();
3004 auto port2 = CreateTestPort(kLocalAddr2, "rfrag", "rpass",
3005 cricket::ICEROLE_CONTROLLED, kTiebreaker2);
3006
3007 TestChannel ch1(std::move(port1_unique));
3008 // Block usage of STUN_ATTR_USE_CANDIDATE so that
3009 // ch1.conn() will sent GOOG_PING_REQUEST directly.
3010 // This only makes test a bit shorter...
3011 ch1.SetIceMode(ICEMODE_LITE);
3012 // Start gathering candidates.
3013 ch1.Start();
3014 port2->PrepareAddress();
3015
3016 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
3017 ASSERT_FALSE(port2->Candidates().empty());
3018
3019 ch1.CreateConnection(GetCandidate(port2.get()));
3020 ASSERT_TRUE(ch1.conn() != NULL);
3021 EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state());
3022 ch1.conn()->SetIceFieldTrials(&trials);
3023
3024 // Send ping.
3025 ch1.Ping();
3026
3027 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3028 const IceMessage* request1 = port1->last_stun_msg();
Jonas Oreland219d8ce2020-01-15 15:29:48 +01003029
3030 ASSERT_EQ(trials.enable_goog_ping,
3031 GetSupportedGoogPingVersion(request1) &&
3032 GetSupportedGoogPingVersion(request1) >= kGoogPingVersion);
3033
Jonas Oreland9a52bd72019-12-11 11:35:48 +01003034 auto* con = port2->CreateConnection(port1->Candidates()[0],
3035 cricket::Port::ORIGIN_MESSAGE);
3036 con->SetIceFieldTrials(&trials);
3037
3038 con->SendStunBindingResponse(request1);
3039
3040 // Then check the response matches the settings.
3041 const auto* response = port2->last_stun_msg();
Jonas Oreland219d8ce2020-01-15 15:29:48 +01003042 EXPECT_EQ(response->type(), STUN_BINDING_RESPONSE);
3043 EXPECT_EQ(trials.enable_goog_ping && trials.announce_goog_ping,
Jonas Oreland9a52bd72019-12-11 11:35:48 +01003044 GetSupportedGoogPingVersion(response) &&
3045 GetSupportedGoogPingVersion(response) >= kGoogPingVersion);
3046
3047 // Feeding the respone message back.
3048 ch1.conn()->OnReadPacket(port2->last_stun_buf()->data<char>(),
3049 port2->last_stun_buf()->size(),
3050 /* packet_time_us */ -1);
3051
3052 port1->Reset();
3053 port2->Reset();
3054
3055 ch1.Ping();
3056 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3057 const IceMessage* request2 = port1->last_stun_msg();
3058
3059 // It should be a GOOG_PING if both of these are TRUE
3060 if (trials.announce_goog_ping && trials.enable_goog_ping) {
3061 ASSERT_EQ(request2->type(), GOOG_PING_REQUEST);
3062 con->SendGoogPingResponse(request2);
3063 } else {
3064 ASSERT_EQ(request2->type(), STUN_BINDING_REQUEST);
Jonas Oreland219d8ce2020-01-15 15:29:48 +01003065 // If we sent a BINDING with enable, and we got a reply that
3066 // didn't contain announce, the next ping should not contain
3067 // the enable again.
3068 ASSERT_FALSE(GetSupportedGoogPingVersion(request2).has_value());
Jonas Oreland9a52bd72019-12-11 11:35:48 +01003069 con->SendStunBindingResponse(request2);
3070 }
3071
3072 const auto* response2 = port2->last_stun_msg();
3073 ASSERT_TRUE(response2 != nullptr);
3074
3075 // It should be a GOOG_PING_RESPONSE if both of these are TRUE
3076 if (trials.announce_goog_ping && trials.enable_goog_ping) {
3077 ASSERT_EQ(response2->type(), GOOG_PING_RESPONSE);
3078 } else {
3079 ASSERT_EQ(response2->type(), STUN_BINDING_RESPONSE);
3080 }
3081
3082 ch1.Stop();
3083}
3084
Jonas Oreland219d8ce2020-01-15 15:29:48 +01003085// This test if a someone send a STUN_BINDING with unsupported version
3086// (kGoogPingVersion == 0)
3087TEST_F(PortTest, TestGoogPingUnsupportedVersionInStunBinding) {
3088 IceFieldTrials trials;
3089 trials.announce_goog_ping = true;
3090 trials.enable_goog_ping = true;
3091
3092 auto port1_unique =
3093 CreateTestPort(kLocalAddr1, "lfrag", "lpass",
3094 cricket::ICEROLE_CONTROLLING, kTiebreaker1);
3095 auto* port1 = port1_unique.get();
3096 auto port2 = CreateTestPort(kLocalAddr2, "rfrag", "rpass",
3097 cricket::ICEROLE_CONTROLLED, kTiebreaker2);
3098
3099 TestChannel ch1(std::move(port1_unique));
3100 // Block usage of STUN_ATTR_USE_CANDIDATE so that
3101 // ch1.conn() will sent GOOG_PING_REQUEST directly.
3102 // This only makes test a bit shorter...
3103 ch1.SetIceMode(ICEMODE_LITE);
3104 // Start gathering candidates.
3105 ch1.Start();
3106 port2->PrepareAddress();
3107
3108 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
3109 ASSERT_FALSE(port2->Candidates().empty());
3110
3111 ch1.CreateConnection(GetCandidate(port2.get()));
3112 ASSERT_TRUE(ch1.conn() != NULL);
3113 EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state());
3114 ch1.conn()->SetIceFieldTrials(&trials);
3115
3116 // Send ping.
3117 ch1.Ping();
3118
3119 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3120 const IceMessage* request1 = port1->last_stun_msg();
3121
3122 ASSERT_TRUE(GetSupportedGoogPingVersion(request1) &&
3123 GetSupportedGoogPingVersion(request1) >= kGoogPingVersion);
3124
3125 // Modify the STUN message request1 to send GetSupportedGoogPingVersion == 0
3126 auto modified_request1 = request1->Clone();
3127 ASSERT_TRUE(modified_request1->RemoveAttribute(STUN_ATTR_GOOG_MISC_INFO) !=
3128 nullptr);
3129 ASSERT_TRUE(modified_request1->RemoveAttribute(STUN_ATTR_MESSAGE_INTEGRITY) !=
3130 nullptr);
3131 {
3132 auto list =
3133 StunAttribute::CreateUInt16ListAttribute(STUN_ATTR_GOOG_MISC_INFO);
3134 list->AddTypeAtIndex(
3135 static_cast<uint16_t>(
3136 cricket::IceGoogMiscInfoBindingRequestAttributeIndex::
3137 SUPPORT_GOOG_PING_VERSION),
3138 /* version */ 0);
3139 modified_request1->AddAttribute(std::move(list));
3140 modified_request1->AddMessageIntegrity("rpass");
3141 }
3142 auto* con = port2->CreateConnection(port1->Candidates()[0],
3143 cricket::Port::ORIGIN_MESSAGE);
3144 con->SetIceFieldTrials(&trials);
3145
3146 con->SendStunBindingResponse(modified_request1.get());
3147
3148 // Then check the response matches the settings.
3149 const auto* response = port2->last_stun_msg();
3150 EXPECT_EQ(response->type(), STUN_BINDING_RESPONSE);
3151 EXPECT_FALSE(GetSupportedGoogPingVersion(response));
3152
3153 ch1.Stop();
3154}
3155
3156// This test if a someone send a STUN_BINDING_RESPONSE with unsupported version
3157// (kGoogPingVersion == 0)
3158TEST_F(PortTest, TestGoogPingUnsupportedVersionInStunBindingResponse) {
3159 IceFieldTrials trials;
3160 trials.announce_goog_ping = true;
3161 trials.enable_goog_ping = true;
3162
3163 auto port1_unique =
3164 CreateTestPort(kLocalAddr1, "lfrag", "lpass",
3165 cricket::ICEROLE_CONTROLLING, kTiebreaker1);
3166 auto* port1 = port1_unique.get();
3167 auto port2 = CreateTestPort(kLocalAddr2, "rfrag", "rpass",
3168 cricket::ICEROLE_CONTROLLED, kTiebreaker2);
3169
3170 TestChannel ch1(std::move(port1_unique));
3171 // Block usage of STUN_ATTR_USE_CANDIDATE so that
3172 // ch1.conn() will sent GOOG_PING_REQUEST directly.
3173 // This only makes test a bit shorter...
3174 ch1.SetIceMode(ICEMODE_LITE);
3175 // Start gathering candidates.
3176 ch1.Start();
3177 port2->PrepareAddress();
3178
3179 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
3180 ASSERT_FALSE(port2->Candidates().empty());
3181
3182 ch1.CreateConnection(GetCandidate(port2.get()));
3183 ASSERT_TRUE(ch1.conn() != NULL);
3184 EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state());
3185 ch1.conn()->SetIceFieldTrials(&trials);
3186
3187 // Send ping.
3188 ch1.Ping();
3189
3190 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3191 const IceMessage* request1 = port1->last_stun_msg();
3192
3193 ASSERT_TRUE(GetSupportedGoogPingVersion(request1) &&
3194 GetSupportedGoogPingVersion(request1) >= kGoogPingVersion);
3195
3196 auto* con = port2->CreateConnection(port1->Candidates()[0],
3197 cricket::Port::ORIGIN_MESSAGE);
3198 con->SetIceFieldTrials(&trials);
3199
3200 con->SendStunBindingResponse(request1);
3201
3202 // Then check the response matches the settings.
3203 const auto* response = port2->last_stun_msg();
3204 EXPECT_EQ(response->type(), STUN_BINDING_RESPONSE);
3205 EXPECT_TRUE(GetSupportedGoogPingVersion(response));
3206
3207 // Modify the STUN message response to contain GetSupportedGoogPingVersion ==
3208 // 0
3209 auto modified_response = response->Clone();
3210 ASSERT_TRUE(modified_response->RemoveAttribute(STUN_ATTR_GOOG_MISC_INFO) !=
3211 nullptr);
3212 ASSERT_TRUE(modified_response->RemoveAttribute(STUN_ATTR_MESSAGE_INTEGRITY) !=
3213 nullptr);
3214 ASSERT_TRUE(modified_response->RemoveAttribute(STUN_ATTR_FINGERPRINT) !=
3215 nullptr);
3216 {
3217 auto list =
3218 StunAttribute::CreateUInt16ListAttribute(STUN_ATTR_GOOG_MISC_INFO);
3219 list->AddTypeAtIndex(
3220 static_cast<uint16_t>(
3221 cricket::IceGoogMiscInfoBindingResponseAttributeIndex::
3222 SUPPORT_GOOG_PING_VERSION),
3223 /* version */ 0);
3224 modified_response->AddAttribute(std::move(list));
3225 modified_response->AddMessageIntegrity("rpass");
3226 modified_response->AddFingerprint();
3227 }
3228
3229 rtc::ByteBufferWriter buf;
3230 modified_response->Write(&buf);
3231
3232 // Feeding the modified respone message back.
3233 ch1.conn()->OnReadPacket(buf.Data(), buf.Length(), /* packet_time_us */ -1);
3234
3235 port1->Reset();
3236 port2->Reset();
3237
3238 ch1.Ping();
3239 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3240
3241 // This should now be a STUN_BINDING...without a kGoogPingVersion
3242 const IceMessage* request2 = port1->last_stun_msg();
3243 EXPECT_EQ(request2->type(), STUN_BINDING_REQUEST);
3244 EXPECT_FALSE(GetSupportedGoogPingVersion(request2));
3245
3246 ch1.Stop();
3247}
3248
Jonas Oreland9a52bd72019-12-11 11:35:48 +01003249INSTANTIATE_TEST_SUITE_P(GoogPingTest,
3250 GoogPingTest,
3251 // test all combinations of <announce, enable> pairs.
3252 ::testing::Values(std::make_pair(false, false),
3253 std::make_pair(true, false),
3254 std::make_pair(false, true),
3255 std::make_pair(true, true)));
3256
3257// This test checks that a change in attributes falls back to STUN_BINDING
3258TEST_F(PortTest, TestChangeInAttributeMakesGoogPingFallsbackToStunBinding) {
3259 IceFieldTrials trials;
3260 trials.announce_goog_ping = true;
3261 trials.enable_goog_ping = true;
3262
3263 auto port1_unique =
3264 CreateTestPort(kLocalAddr1, "lfrag", "lpass",
3265 cricket::ICEROLE_CONTROLLING, kTiebreaker1);
3266 auto* port1 = port1_unique.get();
3267 auto port2 = CreateTestPort(kLocalAddr2, "rfrag", "rpass",
3268 cricket::ICEROLE_CONTROLLED, kTiebreaker2);
3269
3270 TestChannel ch1(std::move(port1_unique));
3271 // Block usage of STUN_ATTR_USE_CANDIDATE so that
3272 // ch1.conn() will sent GOOG_PING_REQUEST directly.
3273 // This only makes test a bit shorter...
3274 ch1.SetIceMode(ICEMODE_LITE);
3275 // Start gathering candidates.
3276 ch1.Start();
3277 port2->PrepareAddress();
3278
3279 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
3280 ASSERT_FALSE(port2->Candidates().empty());
3281
3282 ch1.CreateConnection(GetCandidate(port2.get()));
3283 ASSERT_TRUE(ch1.conn() != nullptr);
3284 EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state());
3285 ch1.conn()->SetIceFieldTrials(&trials);
3286
3287 // Send ping.
3288 ch1.Ping();
3289
3290 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3291 const IceMessage* msg = port1->last_stun_msg();
3292 auto* con = port2->CreateConnection(port1->Candidates()[0],
3293 cricket::Port::ORIGIN_MESSAGE);
3294 con->SetIceFieldTrials(&trials);
3295
3296 // Feed the message into the connection.
3297 con->SendStunBindingResponse(msg);
3298
3299 // The check reply wrt to settings.
3300 const auto* response = port2->last_stun_msg();
3301 ASSERT_EQ(response->type(), STUN_BINDING_RESPONSE);
3302 ASSERT_TRUE(GetSupportedGoogPingVersion(response) >= kGoogPingVersion);
3303
3304 // Feeding the respone message back.
3305 ch1.conn()->OnReadPacket(port2->last_stun_buf()->data<char>(),
3306 port2->last_stun_buf()->size(),
3307 /* packet_time_us */ -1);
3308
3309 port1->Reset();
3310 port2->Reset();
3311
3312 ch1.Ping();
3313 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3314 const IceMessage* msg2 = port1->last_stun_msg();
3315
3316 // It should be a GOOG_PING if both of these are TRUE
3317 ASSERT_EQ(msg2->type(), GOOG_PING_REQUEST);
3318 con->SendGoogPingResponse(msg2);
3319
3320 const auto* response2 = port2->last_stun_msg();
3321 ASSERT_TRUE(response2 != nullptr);
3322
3323 // It should be a GOOG_PING_RESPONSE.
3324 ASSERT_EQ(response2->type(), GOOG_PING_RESPONSE);
3325
3326 // And now the third ping.
3327 port1->Reset();
3328 port2->Reset();
3329
3330 // Modify the message to be sent.
3331 ch1.conn()->set_use_candidate_attr(!ch1.conn()->use_candidate_attr());
3332
3333 ch1.Ping();
3334 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3335 const IceMessage* msg3 = port1->last_stun_msg();
3336
3337 // It should be a STUN_BINDING_REQUEST
3338 ASSERT_EQ(msg3->type(), STUN_BINDING_REQUEST);
3339
3340 ch1.Stop();
3341}
3342
3343// This test that an error response fall back to STUN_BINDING.
3344TEST_F(PortTest, TestErrorResponseMakesGoogPingFallBackToStunBinding) {
3345 IceFieldTrials trials;
3346 trials.announce_goog_ping = true;
3347 trials.enable_goog_ping = true;
3348
3349 auto port1_unique =
3350 CreateTestPort(kLocalAddr1, "lfrag", "lpass",
3351 cricket::ICEROLE_CONTROLLING, kTiebreaker1);
3352 auto* port1 = port1_unique.get();
3353 auto port2 = CreateTestPort(kLocalAddr2, "rfrag", "rpass",
3354 cricket::ICEROLE_CONTROLLED, kTiebreaker2);
3355
3356 TestChannel ch1(std::move(port1_unique));
3357 // Block usage of STUN_ATTR_USE_CANDIDATE so that
3358 // ch1.conn() will sent GOOG_PING_REQUEST directly.
3359 // This only makes test a bit shorter...
3360 ch1.SetIceMode(ICEMODE_LITE);
3361 // Start gathering candidates.
3362 ch1.Start();
3363 port2->PrepareAddress();
3364
3365 ASSERT_EQ_WAIT(1, ch1.complete_count(), kDefaultTimeout);
3366 ASSERT_FALSE(port2->Candidates().empty());
3367
3368 ch1.CreateConnection(GetCandidate(port2.get()));
3369 ASSERT_TRUE(ch1.conn() != NULL);
3370 EXPECT_EQ(Connection::STATE_WRITE_INIT, ch1.conn()->write_state());
3371 ch1.conn()->SetIceFieldTrials(&trials);
3372
3373 // Send ping.
3374 ch1.Ping();
3375
3376 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3377 const IceMessage* msg = port1->last_stun_msg();
3378 auto* con = port2->CreateConnection(port1->Candidates()[0],
3379 cricket::Port::ORIGIN_MESSAGE);
3380 con->SetIceFieldTrials(&trials);
3381
3382 // Feed the message into the connection.
3383 con->SendStunBindingResponse(msg);
3384
3385 // The check reply wrt to settings.
3386 const auto* response = port2->last_stun_msg();
3387 ASSERT_EQ(response->type(), STUN_BINDING_RESPONSE);
3388 ASSERT_TRUE(GetSupportedGoogPingVersion(response) >= kGoogPingVersion);
3389
3390 // Feeding the respone message back.
3391 ch1.conn()->OnReadPacket(port2->last_stun_buf()->data<char>(),
3392 port2->last_stun_buf()->size(),
3393 /* packet_time_us */ -1);
3394
3395 port1->Reset();
3396 port2->Reset();
3397
3398 ch1.Ping();
3399 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3400 const IceMessage* msg2 = port1->last_stun_msg();
3401
3402 // It should be a GOOG_PING.
3403 ASSERT_EQ(msg2->type(), GOOG_PING_REQUEST);
3404 con->SendGoogPingResponse(msg2);
3405
3406 const auto* response2 = port2->last_stun_msg();
3407 ASSERT_TRUE(response2 != nullptr);
3408
3409 // It should be a GOOG_PING_RESPONSE.
3410 ASSERT_EQ(response2->type(), GOOG_PING_RESPONSE);
3411
3412 // But rather than the RESPONSE...feedback an error.
Tommib5af6ee2022-06-04 09:50:22 +02003413 StunMessage error_response(GOOG_PING_ERROR_RESPONSE);
Tommi408143d2022-06-01 15:29:31 +02003414 error_response.SetTransactionIdForTesting(response2->transaction_id());
Jonas Oreland9a52bd72019-12-11 11:35:48 +01003415 error_response.AddMessageIntegrity32("rpass");
3416 rtc::ByteBufferWriter buf;
3417 error_response.Write(&buf);
3418
3419 ch1.conn()->OnReadPacket(buf.Data(), buf.Length(),
3420 /* packet_time_us */ -1);
3421
3422 // And now the third ping...this should be a binding.
3423 port1->Reset();
3424 port2->Reset();
3425
3426 ch1.Ping();
3427 ASSERT_TRUE_WAIT(port1->last_stun_msg() != NULL, kDefaultTimeout);
3428 const IceMessage* msg3 = port1->last_stun_msg();
3429
3430 // It should be a STUN_BINDING_REQUEST
3431 ASSERT_EQ(msg3->type(), STUN_BINDING_REQUEST);
3432
3433 ch1.Stop();
3434}
3435
Honghai Zhanga74363c2016-07-28 18:06:15 -07003436// This test case verifies that both the controlling port and the controlled
3437// port will time out after connectivity is lost, if they are not marked as
3438// "keep alive until pruned."
3439TEST_F(PortTest, TestPortTimeoutIfNotKeptAlive) {
3440 rtc::ScopedFakeClock clock;
3441 int timeout_delay = 100;
Steve Anton11358fe2018-10-09 15:39:19 -07003442 auto port1 = CreateUdpPort(kLocalAddr1);
3443 ConnectToSignalDestroyed(port1.get());
Honghai Zhanga74363c2016-07-28 18:06:15 -07003444 port1->set_timeout_delay(timeout_delay); // milliseconds
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003445 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
3446 port1->SetIceTiebreaker(kTiebreaker1);
3447
Steve Anton11358fe2018-10-09 15:39:19 -07003448 auto port2 = CreateUdpPort(kLocalAddr2);
3449 ConnectToSignalDestroyed(port2.get());
Honghai Zhanga74363c2016-07-28 18:06:15 -07003450 port2->set_timeout_delay(timeout_delay); // milliseconds
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003451 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
3452 port2->SetIceTiebreaker(kTiebreaker2);
3453
3454 // Set up channels and ensure both ports will be deleted.
Steve Anton11358fe2018-10-09 15:39:19 -07003455 TestChannel ch1(std::move(port1));
3456 TestChannel ch2(std::move(port2));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003457
3458 // Simulate a connection that succeeds, and then is destroyed.
Guo-wei Shiehbe508a12015-04-06 12:48:47 -07003459 StartConnectAndStopChannels(&ch1, &ch2);
Honghai Zhanga74363c2016-07-28 18:06:15 -07003460 // After the connection is destroyed, the port will be destroyed because
3461 // none of them is marked as "keep alive until pruned.
3462 EXPECT_EQ_SIMULATED_WAIT(2, ports_destroyed(), 110, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003463}
3464
Honghai Zhanga74363c2016-07-28 18:06:15 -07003465// Test that if after all connection are destroyed, new connections are created
3466// and destroyed again, ports won't be destroyed until a timeout period passes
3467// after the last set of connections are all destroyed.
3468TEST_F(PortTest, TestPortTimeoutAfterNewConnectionCreatedAndDestroyed) {
Honghai Zhangb5db1ec2016-07-28 13:23:05 -07003469 rtc::ScopedFakeClock clock;
Honghai Zhanga74363c2016-07-28 18:06:15 -07003470 int timeout_delay = 100;
Steve Anton11358fe2018-10-09 15:39:19 -07003471 auto port1 = CreateUdpPort(kLocalAddr1);
3472 ConnectToSignalDestroyed(port1.get());
Honghai Zhanga74363c2016-07-28 18:06:15 -07003473 port1->set_timeout_delay(timeout_delay); // milliseconds
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003474 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
3475 port1->SetIceTiebreaker(kTiebreaker1);
3476
Steve Anton11358fe2018-10-09 15:39:19 -07003477 auto port2 = CreateUdpPort(kLocalAddr2);
3478 ConnectToSignalDestroyed(port2.get());
Honghai Zhanga74363c2016-07-28 18:06:15 -07003479 port2->set_timeout_delay(timeout_delay); // milliseconds
3480
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003481 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
3482 port2->SetIceTiebreaker(kTiebreaker2);
3483
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003484 // Set up channels and ensure both ports will be deleted.
Steve Anton11358fe2018-10-09 15:39:19 -07003485 TestChannel ch1(std::move(port1));
3486 TestChannel ch2(std::move(port2));
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003487
3488 // Simulate a connection that succeeds, and then is destroyed.
Guo-wei Shiehbe508a12015-04-06 12:48:47 -07003489 StartConnectAndStopChannels(&ch1, &ch2);
Honghai Zhanga74363c2016-07-28 18:06:15 -07003490 SIMULATED_WAIT(ports_destroyed() > 0, 80, clock);
3491 EXPECT_EQ(0, ports_destroyed());
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003492
Honghai Zhanga74363c2016-07-28 18:06:15 -07003493 // Start the second set of connection and destroy them.
3494 ch1.CreateConnection(GetCandidate(ch2.port()));
Honghai Zhangb5db1ec2016-07-28 13:23:05 -07003495 ch2.CreateConnection(GetCandidate(ch1.port()));
Honghai Zhanga74363c2016-07-28 18:06:15 -07003496 ch1.Stop();
Honghai Zhangb5db1ec2016-07-28 13:23:05 -07003497 ch2.Stop();
Honghai Zhangb5db1ec2016-07-28 13:23:05 -07003498
Honghai Zhanga74363c2016-07-28 18:06:15 -07003499 SIMULATED_WAIT(ports_destroyed() > 0, 80, clock);
3500 EXPECT_EQ(0, ports_destroyed());
3501
3502 // The ports on both sides should be destroyed after timeout.
3503 EXPECT_TRUE_SIMULATED_WAIT(ports_destroyed() == 2, 30, clock);
henrike@webrtc.org269fb4b2014-10-28 22:20:11 +00003504}
honghaizd0b31432015-09-30 12:42:17 -07003505
Honghai Zhanga74363c2016-07-28 18:06:15 -07003506// This test case verifies that neither the controlling port nor the controlled
3507// port will time out after connectivity is lost if they are marked as "keep
3508// alive until pruned". They will time out after they are pruned.
3509TEST_F(PortTest, TestPortNotTimeoutUntilPruned) {
3510 rtc::ScopedFakeClock clock;
3511 int timeout_delay = 100;
Steve Anton11358fe2018-10-09 15:39:19 -07003512 auto port1 = CreateUdpPort(kLocalAddr1);
3513 ConnectToSignalDestroyed(port1.get());
Honghai Zhanga74363c2016-07-28 18:06:15 -07003514 port1->set_timeout_delay(timeout_delay); // milliseconds
honghaizd0b31432015-09-30 12:42:17 -07003515 port1->SetIceRole(cricket::ICEROLE_CONTROLLING);
3516 port1->SetIceTiebreaker(kTiebreaker1);
3517
Steve Anton11358fe2018-10-09 15:39:19 -07003518 auto port2 = CreateUdpPort(kLocalAddr2);
3519 ConnectToSignalDestroyed(port2.get());
Honghai Zhanga74363c2016-07-28 18:06:15 -07003520 port2->set_timeout_delay(timeout_delay); // milliseconds
honghaizd0b31432015-09-30 12:42:17 -07003521 port2->SetIceRole(cricket::ICEROLE_CONTROLLED);
3522 port2->SetIceTiebreaker(kTiebreaker2);
honghaizd0b31432015-09-30 12:42:17 -07003523 // The connection must not be destroyed before a connection is attempted.
Honghai Zhanga74363c2016-07-28 18:06:15 -07003524 EXPECT_EQ(0, ports_destroyed());
honghaizd0b31432015-09-30 12:42:17 -07003525
3526 port1->set_component(cricket::ICE_CANDIDATE_COMPONENT_DEFAULT);
3527 port2->set_component(cricket::ICE_CANDIDATE_COMPONENT_DEFAULT);
3528
Honghai Zhanga74363c2016-07-28 18:06:15 -07003529 // Set up channels and keep the port alive.
Steve Anton11358fe2018-10-09 15:39:19 -07003530 TestChannel ch1(std::move(port1));
3531 TestChannel ch2(std::move(port2));
Honghai Zhanga74363c2016-07-28 18:06:15 -07003532 // Simulate a connection that succeeds, and then is destroyed. But ports
3533 // are kept alive. Ports won't be destroyed.
honghaizd0b31432015-09-30 12:42:17 -07003534 StartConnectAndStopChannels(&ch1, &ch2);
Steve Anton11358fe2018-10-09 15:39:19 -07003535 ch1.port()->KeepAliveUntilPruned();
3536 ch2.port()->KeepAliveUntilPruned();
Honghai Zhanga74363c2016-07-28 18:06:15 -07003537 SIMULATED_WAIT(ports_destroyed() > 0, 150, clock);
3538 EXPECT_EQ(0, ports_destroyed());
honghaizd0b31432015-09-30 12:42:17 -07003539
Honghai Zhanga74363c2016-07-28 18:06:15 -07003540 // If they are pruned now, they will be destroyed right away.
Steve Anton11358fe2018-10-09 15:39:19 -07003541 ch1.port()->Prune();
3542 ch2.port()->Prune();
Honghai Zhanga74363c2016-07-28 18:06:15 -07003543 // The ports on both sides should be destroyed after timeout.
3544 EXPECT_TRUE_SIMULATED_WAIT(ports_destroyed() == 2, 1, clock);
honghaizd0b31432015-09-30 12:42:17 -07003545}
Honghai Zhangf9945b22015-12-15 12:20:13 -08003546
3547TEST_F(PortTest, TestSupportsProtocol) {
Steve Anton11358fe2018-10-09 15:39:19 -07003548 auto udp_port = CreateUdpPort(kLocalAddr1);
Honghai Zhangf9945b22015-12-15 12:20:13 -08003549 EXPECT_TRUE(udp_port->SupportsProtocol(UDP_PROTOCOL_NAME));
3550 EXPECT_FALSE(udp_port->SupportsProtocol(TCP_PROTOCOL_NAME));
3551
Steve Anton11358fe2018-10-09 15:39:19 -07003552 auto stun_port = CreateStunPort(kLocalAddr1, nat_socket_factory1());
Honghai Zhangf9945b22015-12-15 12:20:13 -08003553 EXPECT_TRUE(stun_port->SupportsProtocol(UDP_PROTOCOL_NAME));
3554 EXPECT_FALSE(stun_port->SupportsProtocol(TCP_PROTOCOL_NAME));
3555
Steve Anton11358fe2018-10-09 15:39:19 -07003556 auto tcp_port = CreateTcpPort(kLocalAddr1);
Honghai Zhangf9945b22015-12-15 12:20:13 -08003557 EXPECT_TRUE(tcp_port->SupportsProtocol(TCP_PROTOCOL_NAME));
3558 EXPECT_TRUE(tcp_port->SupportsProtocol(SSLTCP_PROTOCOL_NAME));
3559 EXPECT_FALSE(tcp_port->SupportsProtocol(UDP_PROTOCOL_NAME));
3560
Steve Anton11358fe2018-10-09 15:39:19 -07003561 auto turn_port =
3562 CreateTurnPort(kLocalAddr1, nat_socket_factory1(), PROTO_UDP, PROTO_UDP);
Honghai Zhangf9945b22015-12-15 12:20:13 -08003563 EXPECT_TRUE(turn_port->SupportsProtocol(UDP_PROTOCOL_NAME));
3564 EXPECT_FALSE(turn_port->SupportsProtocol(TCP_PROTOCOL_NAME));
3565}
Taylor Brandstettera1c30352016-05-13 08:15:11 -07003566
3567// Test that SetIceParameters updates the component, ufrag and password
3568// on both the port itself and its candidates.
3569TEST_F(PortTest, TestSetIceParameters) {
Steve Anton11358fe2018-10-09 15:39:19 -07003570 auto port = CreateTestPort(kLocalAddr1, "ufrag1", "password1");
Taylor Brandstettera1c30352016-05-13 08:15:11 -07003571 port->PrepareAddress();
3572 EXPECT_EQ(1UL, port->Candidates().size());
3573 port->SetIceParameters(1, "ufrag2", "password2");
3574 EXPECT_EQ(1, port->component());
3575 EXPECT_EQ("ufrag2", port->username_fragment());
3576 EXPECT_EQ("password2", port->password());
3577 const Candidate& candidate = port->Candidates()[0];
3578 EXPECT_EQ(1, candidate.component());
3579 EXPECT_EQ("ufrag2", candidate.username());
3580 EXPECT_EQ("password2", candidate.password());
3581}
honghaiz36f50e82016-06-01 15:57:03 -07003582
3583TEST_F(PortTest, TestAddConnectionWithSameAddress) {
Steve Anton11358fe2018-10-09 15:39:19 -07003584 auto port = CreateTestPort(kLocalAddr1, "ufrag1", "password1");
honghaiz36f50e82016-06-01 15:57:03 -07003585 port->PrepareAddress();
3586 EXPECT_EQ(1u, port->Candidates().size());
3587 rtc::SocketAddress address("1.1.1.1", 5000);
3588 cricket::Candidate candidate(1, "udp", address, 0, "", "", "relay", 0, "");
3589 cricket::Connection* conn1 =
3590 port->CreateConnection(candidate, Port::ORIGIN_MESSAGE);
3591 cricket::Connection* conn_in_use = port->GetConnection(address);
3592 EXPECT_EQ(conn1, conn_in_use);
3593 EXPECT_EQ(0u, conn_in_use->remote_candidate().generation());
3594
3595 // Creating with a candidate with the same address again will get us a
3596 // different connection with the new candidate.
3597 candidate.set_generation(2);
3598 cricket::Connection* conn2 =
3599 port->CreateConnection(candidate, Port::ORIGIN_MESSAGE);
3600 EXPECT_NE(conn1, conn2);
3601 conn_in_use = port->GetConnection(address);
3602 EXPECT_EQ(conn2, conn_in_use);
3603 EXPECT_EQ(2u, conn_in_use->remote_candidate().generation());
3604
3605 // Make sure the new connection was not deleted.
3606 rtc::Thread::Current()->ProcessMessages(300);
3607 EXPECT_TRUE(port->GetConnection(address) != nullptr);
3608}
Steve Antonbabf9172017-11-29 10:19:02 -08003609
Jonas Orelandef60c2b2020-03-26 15:10:39 +01003610// TODO(webrtc:11463) : Move Connection tests into separate unit test
3611// splitting out shared test code as needed.
3612
3613class ConnectionTest : public PortTest {
3614 public:
3615 ConnectionTest() {
3616 lport_ = CreateTestPort(kLocalAddr1, "lfrag", "lpass");
3617 rport_ = CreateTestPort(kLocalAddr2, "rfrag", "rpass");
3618 lport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
3619 lport_->SetIceTiebreaker(kTiebreaker1);
3620 rport_->SetIceRole(cricket::ICEROLE_CONTROLLED);
3621 rport_->SetIceTiebreaker(kTiebreaker2);
3622
3623 lport_->PrepareAddress();
3624 rport_->PrepareAddress();
3625 }
3626
3627 rtc::ScopedFakeClock clock_;
3628 int num_state_changes_ = 0;
3629
3630 Connection* CreateConnection(IceRole role) {
3631 Connection* conn;
3632 if (role == cricket::ICEROLE_CONTROLLING) {
3633 conn = lport_->CreateConnection(rport_->Candidates()[0],
3634 Port::ORIGIN_MESSAGE);
3635 } else {
3636 conn = rport_->CreateConnection(lport_->Candidates()[0],
3637 Port::ORIGIN_MESSAGE);
3638 }
3639 conn->SignalStateChange.connect(this,
3640 &ConnectionTest::OnConnectionStateChange);
3641 return conn;
3642 }
3643
3644 void SendPingAndCaptureReply(Connection* lconn,
3645 Connection* rconn,
3646 int64_t ms,
3647 rtc::BufferT<uint8_t>* reply) {
3648 TestPort* lport =
3649 lconn->PortForTest() == lport_.get() ? lport_.get() : rport_.get();
3650 TestPort* rport =
3651 rconn->PortForTest() == rport_.get() ? rport_.get() : lport_.get();
3652 lconn->Ping(rtc::TimeMillis());
3653 ASSERT_TRUE_WAIT(lport->last_stun_msg(), kDefaultTimeout);
3654 ASSERT_TRUE(lport->last_stun_buf());
3655 rconn->OnReadPacket(lport->last_stun_buf()->data<char>(),
3656 lport->last_stun_buf()->size(),
3657 /* packet_time_us */ -1);
3658 clock_.AdvanceTime(webrtc::TimeDelta::Millis(ms));
3659 ASSERT_TRUE_WAIT(rport->last_stun_msg(), kDefaultTimeout);
3660 ASSERT_TRUE(rport->last_stun_buf());
3661 *reply = std::move(*rport->last_stun_buf());
3662 }
3663
3664 void SendPingAndReceiveResponse(Connection* lconn,
3665 Connection* rconn,
3666 int64_t ms) {
3667 rtc::BufferT<uint8_t> reply;
3668 SendPingAndCaptureReply(lconn, rconn, ms, &reply);
3669 lconn->OnReadPacket(reply.data<char>(), reply.size(),
3670 /* packet_time_us */ -1);
3671 }
3672
3673 void OnConnectionStateChange(Connection* connection) { num_state_changes_++; }
3674
3675 private:
3676 std::unique_ptr<TestPort> lport_;
3677 std::unique_ptr<TestPort> rport_;
3678};
3679
3680TEST_F(ConnectionTest, ConnectionForgetLearnedState) {
3681 Connection* lconn = CreateConnection(ICEROLE_CONTROLLING);
3682 Connection* rconn = CreateConnection(ICEROLE_CONTROLLED);
3683
3684 EXPECT_FALSE(lconn->writable());
3685 EXPECT_FALSE(lconn->receiving());
3686 EXPECT_TRUE(std::isnan(lconn->GetRttEstimate().GetAverage()));
3687 EXPECT_EQ(lconn->GetRttEstimate().GetVariance(),
3688 std::numeric_limits<double>::infinity());
3689
3690 SendPingAndReceiveResponse(lconn, rconn, 10);
3691
3692 EXPECT_TRUE(lconn->writable());
3693 EXPECT_TRUE(lconn->receiving());
3694 EXPECT_EQ(lconn->GetRttEstimate().GetAverage(), 10);
3695 EXPECT_EQ(lconn->GetRttEstimate().GetVariance(),
3696 std::numeric_limits<double>::infinity());
3697
3698 SendPingAndReceiveResponse(lconn, rconn, 11);
3699
3700 EXPECT_TRUE(lconn->writable());
3701 EXPECT_TRUE(lconn->receiving());
3702 EXPECT_NEAR(lconn->GetRttEstimate().GetAverage(), 10, 0.5);
3703 EXPECT_LT(lconn->GetRttEstimate().GetVariance(),
3704 std::numeric_limits<double>::infinity());
3705
3706 lconn->ForgetLearnedState();
3707
3708 EXPECT_FALSE(lconn->writable());
3709 EXPECT_FALSE(lconn->receiving());
3710 EXPECT_TRUE(std::isnan(lconn->GetRttEstimate().GetAverage()));
3711 EXPECT_EQ(lconn->GetRttEstimate().GetVariance(),
3712 std::numeric_limits<double>::infinity());
3713}
3714
3715TEST_F(ConnectionTest, ConnectionForgetLearnedStateDiscardsPendingPings) {
3716 Connection* lconn = CreateConnection(ICEROLE_CONTROLLING);
3717 Connection* rconn = CreateConnection(ICEROLE_CONTROLLED);
3718
3719 SendPingAndReceiveResponse(lconn, rconn, 10);
3720
3721 EXPECT_TRUE(lconn->writable());
3722 EXPECT_TRUE(lconn->receiving());
3723
3724 rtc::BufferT<uint8_t> reply;
3725 SendPingAndCaptureReply(lconn, rconn, 10, &reply);
3726
3727 lconn->ForgetLearnedState();
3728
3729 EXPECT_FALSE(lconn->writable());
3730 EXPECT_FALSE(lconn->receiving());
3731
3732 lconn->OnReadPacket(reply.data<char>(), reply.size(),
3733 /* packet_time_us */ -1);
3734
3735 // That reply was discarded due to the ForgetLearnedState() while it was
3736 // outstanding.
3737 EXPECT_FALSE(lconn->writable());
3738 EXPECT_FALSE(lconn->receiving());
3739
3740 // But sending a new ping and getting a reply works.
3741 SendPingAndReceiveResponse(lconn, rconn, 11);
3742 EXPECT_TRUE(lconn->writable());
3743 EXPECT_TRUE(lconn->receiving());
3744}
3745
3746TEST_F(ConnectionTest, ConnectionForgetLearnedStateDoesNotTriggerStateChange) {
3747 Connection* lconn = CreateConnection(ICEROLE_CONTROLLING);
3748 Connection* rconn = CreateConnection(ICEROLE_CONTROLLED);
3749
3750 EXPECT_EQ(num_state_changes_, 0);
3751 SendPingAndReceiveResponse(lconn, rconn, 10);
3752
3753 EXPECT_TRUE(lconn->writable());
3754 EXPECT_TRUE(lconn->receiving());
3755 EXPECT_EQ(num_state_changes_, 2);
3756
3757 lconn->ForgetLearnedState();
3758
3759 EXPECT_FALSE(lconn->writable());
3760 EXPECT_FALSE(lconn->receiving());
3761 EXPECT_EQ(num_state_changes_, 2);
3762}
3763
Steve Antonbabf9172017-11-29 10:19:02 -08003764} // namespace cricket