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/*
* Copyright 2011 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <memory>
#include "webrtc/base/fakesslidentity.h"
#include "webrtc/base/gunit.h"
#include "webrtc/base/network.h"
#include "webrtc/p2p/base/faketransportcontroller.h"
#include "webrtc/p2p/base/p2ptransport.h"
using cricket::Transport;
using cricket::FakeTransport;
using cricket::TransportChannel;
using cricket::FakeTransportChannel;
using cricket::IceRole;
using cricket::TransportDescription;
using rtc::SocketAddress;
static const char kIceUfrag1[] = "TESTICEUFRAG0001";
static const char kIcePwd1[] = "TESTICEPWD00000000000001";
static const char kIceUfrag2[] = "TESTICEUFRAG0002";
static const char kIcePwd2[] = "TESTICEPWD00000000000002";
class TransportTest : public testing::Test,
public sigslot::has_slots<> {
public:
TransportTest()
: transport_(new FakeTransport("test content name")), channel_(NULL) {}
~TransportTest() {
transport_->DestroyAllChannels();
}
bool SetupChannel() {
channel_ = CreateChannel(1);
return (channel_ != NULL);
}
FakeTransportChannel* CreateChannel(int component) {
return static_cast<FakeTransportChannel*>(
transport_->CreateChannel(component));
}
void DestroyChannel() {
transport_->DestroyChannel(1);
channel_ = NULL;
}
protected:
std::unique_ptr<FakeTransport> transport_;
FakeTransportChannel* channel_;
};
// This test verifies channels are created with proper ICE
// role, tiebreaker and remote ice mode and credentials after offer and
// answer negotiations.
TEST_F(TransportTest, TestChannelIceParameters) {
transport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
transport_->SetIceTiebreaker(99U);
cricket::TransportDescription local_desc(kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(local_desc,
cricket::CA_OFFER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_TRUE(SetupChannel());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
EXPECT_EQ(cricket::ICEMODE_FULL, channel_->remote_ice_mode());
EXPECT_EQ(kIceUfrag1, channel_->ice_ufrag());
EXPECT_EQ(kIcePwd1, channel_->ice_pwd());
cricket::TransportDescription remote_desc(kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetRemoteTransportDescription(remote_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
EXPECT_EQ(99U, channel_->IceTiebreaker());
EXPECT_EQ(cricket::ICEMODE_FULL, channel_->remote_ice_mode());
// Changing the transport role from CONTROLLING to CONTROLLED.
transport_->SetIceRole(cricket::ICEROLE_CONTROLLED);
EXPECT_EQ(cricket::ICEROLE_CONTROLLED, channel_->GetIceRole());
EXPECT_EQ(cricket::ICEMODE_FULL, channel_->remote_ice_mode());
EXPECT_EQ(kIceUfrag1, channel_->remote_ice_ufrag());
EXPECT_EQ(kIcePwd1, channel_->remote_ice_pwd());
}
// Verifies that IceCredentialsChanged returns true when either ufrag or pwd
// changed, and false in other cases.
TEST_F(TransportTest, TestIceCredentialsChanged) {
EXPECT_TRUE(cricket::IceCredentialsChanged("u1", "p1", "u2", "p2"));
EXPECT_TRUE(cricket::IceCredentialsChanged("u1", "p1", "u2", "p1"));
EXPECT_TRUE(cricket::IceCredentialsChanged("u1", "p1", "u1", "p2"));
EXPECT_FALSE(cricket::IceCredentialsChanged("u1", "p1", "u1", "p1"));
}
// This test verifies that the callee's ICE role remains the same when the
// callee triggers an ICE restart.
//
// RFC5245 currently says that the role *should* change on an ICE restart,
// but this rule was intended for an ICE restart that occurs when an endpoint
// is changing to ICE lite (which we already handle). See discussion here:
// https://mailarchive.ietf.org/arch/msg/ice/C0_QRCTNcwtvUF12y28jQicPR10
TEST_F(TransportTest, TestIceControlledToControllingOnIceRestart) {
EXPECT_TRUE(SetupChannel());
transport_->SetIceRole(cricket::ICEROLE_CONTROLLED);
cricket::TransportDescription desc(kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetRemoteTransportDescription(desc,
cricket::CA_OFFER,
NULL));
ASSERT_TRUE(transport_->SetLocalTransportDescription(desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLED, transport_->ice_role());
cricket::TransportDescription new_local_desc(kIceUfrag2, kIcePwd2);
ASSERT_TRUE(transport_->SetLocalTransportDescription(new_local_desc,
cricket::CA_OFFER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLED, transport_->ice_role());
EXPECT_EQ(cricket::ICEROLE_CONTROLLED, channel_->GetIceRole());
}
// This test verifies that the caller's ICE role remains the same when the
// callee triggers an ICE restart.
//
// RFC5245 currently says that the role *should* change on an ICE restart,
// but this rule was intended for an ICE restart that occurs when an endpoint
// is changing to ICE lite (which we already handle). See discussion here:
// https://mailarchive.ietf.org/arch/msg/ice/C0_QRCTNcwtvUF12y28jQicPR10
TEST_F(TransportTest, TestIceControllingToControlledOnIceRestart) {
EXPECT_TRUE(SetupChannel());
transport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
cricket::TransportDescription desc(kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(desc,
cricket::CA_OFFER,
NULL));
ASSERT_TRUE(transport_->SetRemoteTransportDescription(desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
cricket::TransportDescription new_local_desc(kIceUfrag2, kIcePwd2);
ASSERT_TRUE(transport_->SetLocalTransportDescription(new_local_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
}
// This test verifies that the caller's ICE role is still controlling after the
// callee triggers ICE restart if the callee's ICE mode is LITE.
TEST_F(TransportTest, TestIceControllingOnIceRestartIfRemoteIsIceLite) {
EXPECT_TRUE(SetupChannel());
transport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
cricket::TransportDescription desc(kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(desc,
cricket::CA_OFFER,
NULL));
cricket::TransportDescription remote_desc(
std::vector<std::string>(), kIceUfrag1, kIcePwd1, cricket::ICEMODE_LITE,
cricket::CONNECTIONROLE_NONE, NULL);
ASSERT_TRUE(transport_->SetRemoteTransportDescription(remote_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
cricket::TransportDescription new_local_desc(kIceUfrag2, kIcePwd2);
ASSERT_TRUE(transport_->SetLocalTransportDescription(new_local_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
}
// Tests channel role is reversed after receiving ice-lite from remote.
TEST_F(TransportTest, TestSetRemoteIceLiteInOffer) {
transport_->SetIceRole(cricket::ICEROLE_CONTROLLED);
cricket::TransportDescription remote_desc(
std::vector<std::string>(), kIceUfrag1, kIcePwd1, cricket::ICEMODE_LITE,
cricket::CONNECTIONROLE_ACTPASS, NULL);
ASSERT_TRUE(transport_->SetRemoteTransportDescription(remote_desc,
cricket::CA_OFFER,
NULL));
cricket::TransportDescription local_desc(kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(local_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_TRUE(SetupChannel());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
EXPECT_EQ(cricket::ICEMODE_LITE, channel_->remote_ice_mode());
}
// Tests ice-lite in remote answer.
TEST_F(TransportTest, TestSetRemoteIceLiteInAnswer) {
transport_->SetIceRole(cricket::ICEROLE_CONTROLLING);
cricket::TransportDescription local_desc(kIceUfrag1, kIcePwd1);
ASSERT_TRUE(transport_->SetLocalTransportDescription(local_desc,
cricket::CA_OFFER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, transport_->ice_role());
EXPECT_TRUE(SetupChannel());
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
// Channels will be created in ICEFULL_MODE.
EXPECT_EQ(cricket::ICEMODE_FULL, channel_->remote_ice_mode());
cricket::TransportDescription remote_desc(
std::vector<std::string>(), kIceUfrag1, kIcePwd1, cricket::ICEMODE_LITE,
cricket::CONNECTIONROLE_NONE, NULL);
ASSERT_TRUE(transport_->SetRemoteTransportDescription(remote_desc,
cricket::CA_ANSWER,
NULL));
EXPECT_EQ(cricket::ICEROLE_CONTROLLING, channel_->GetIceRole());
// After receiving remote description with ICEMODE_LITE, channel should
// have mode set to ICEMODE_LITE.
EXPECT_EQ(cricket::ICEMODE_LITE, channel_->remote_ice_mode());
}
TEST_F(TransportTest, TestGetStats) {
EXPECT_TRUE(SetupChannel());
cricket::TransportStats stats;
EXPECT_TRUE(transport_->GetStats(&stats));
// Note that this tests the behavior of a FakeTransportChannel.
ASSERT_EQ(1U, stats.channel_stats.size());
EXPECT_EQ(1, stats.channel_stats[0].component);
// Set local transport description for FakeTransport before connecting.
TransportDescription faketransport_desc(
std::vector<std::string>(),
rtc::CreateRandomString(cricket::ICE_UFRAG_LENGTH),
rtc::CreateRandomString(cricket::ICE_PWD_LENGTH), cricket::ICEMODE_FULL,
cricket::CONNECTIONROLE_NONE, nullptr);
transport_->SetLocalTransportDescription(faketransport_desc,
cricket::CA_OFFER, nullptr);
transport_->ConnectChannels();
EXPECT_TRUE(transport_->GetStats(&stats));
ASSERT_EQ(1U, stats.channel_stats.size());
EXPECT_EQ(1, stats.channel_stats[0].component);
}
// Tests that VerifyCertificateFingerprint only returns true when the
// certificate matches the fingerprint.
TEST_F(TransportTest, TestVerifyCertificateFingerprint) {
std::string error_desc;
EXPECT_FALSE(
transport_->VerifyCertificateFingerprint(nullptr, nullptr, &error_desc));
rtc::KeyType key_types[] = {rtc::KT_RSA, rtc::KT_ECDSA};
for (auto& key_type : key_types) {
rtc::scoped_refptr<rtc::RTCCertificate> certificate =
rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>(
rtc::SSLIdentity::Generate("testing", key_type)));
ASSERT_NE(nullptr, certificate);
std::string digest_algorithm;
ASSERT_TRUE(certificate->ssl_certificate().GetSignatureDigestAlgorithm(
&digest_algorithm));
ASSERT_FALSE(digest_algorithm.empty());
std::unique_ptr<rtc::SSLFingerprint> good_fingerprint(
rtc::SSLFingerprint::Create(digest_algorithm, certificate->identity()));
ASSERT_NE(nullptr, good_fingerprint);
EXPECT_TRUE(transport_->VerifyCertificateFingerprint(
certificate.get(), good_fingerprint.get(), &error_desc));
EXPECT_FALSE(transport_->VerifyCertificateFingerprint(
certificate.get(), nullptr, &error_desc));
EXPECT_FALSE(transport_->VerifyCertificateFingerprint(
nullptr, good_fingerprint.get(), &error_desc));
rtc::SSLFingerprint bad_fingerprint = *good_fingerprint;
bad_fingerprint.digest.AppendData("0", 1);
EXPECT_FALSE(transport_->VerifyCertificateFingerprint(
certificate.get(), &bad_fingerprint, &error_desc));
}
}
// Tests that NegotiateRole sets the SSL role correctly.
TEST_F(TransportTest, TestNegotiateRole) {
TransportDescription local_desc(kIceUfrag1, kIcePwd1);
TransportDescription remote_desc(kIceUfrag2, kIcePwd2);
struct NegotiateRoleParams {
cricket::ConnectionRole local_role;
cricket::ConnectionRole remote_role;
cricket::ContentAction local_action;
cricket::ContentAction remote_action;
};
rtc::SSLRole ssl_role;
std::string error_desc;
// Parameters which set the SSL role to SSL_CLIENT.
NegotiateRoleParams valid_client_params[] = {
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_ANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_PRANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_OFFER, cricket::CA_ANSWER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_OFFER, cricket::CA_PRANSWER}};
for (auto& param : valid_client_params) {
local_desc.connection_role = param.local_role;
remote_desc.connection_role = param.remote_role;
ASSERT_TRUE(transport_->SetRemoteTransportDescription(
remote_desc, param.remote_action, nullptr));
ASSERT_TRUE(transport_->SetLocalTransportDescription(
local_desc, param.local_action, nullptr));
EXPECT_TRUE(
transport_->NegotiateRole(param.local_action, &ssl_role, &error_desc));
EXPECT_EQ(rtc::SSL_CLIENT, ssl_role);
}
// Parameters which set the SSL role to SSL_SERVER.
NegotiateRoleParams valid_server_params[] = {
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_ANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_PRANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_OFFER, cricket::CA_ANSWER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_OFFER, cricket::CA_PRANSWER}};
for (auto& param : valid_server_params) {
local_desc.connection_role = param.local_role;
remote_desc.connection_role = param.remote_role;
ASSERT_TRUE(transport_->SetRemoteTransportDescription(
remote_desc, param.remote_action, nullptr));
ASSERT_TRUE(transport_->SetLocalTransportDescription(
local_desc, param.local_action, nullptr));
EXPECT_TRUE(
transport_->NegotiateRole(param.local_action, &ssl_role, &error_desc));
EXPECT_EQ(rtc::SSL_SERVER, ssl_role);
}
// Invalid parameters due to both peers having a duplicate role.
NegotiateRoleParams duplicate_params[] = {
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_ANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_ANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_ANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_PRANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_PRANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_PRANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_OFFER, cricket::CA_ANSWER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_OFFER, cricket::CA_ANSWER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_OFFER, cricket::CA_ANSWER},
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_OFFER, cricket::CA_PRANSWER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_OFFER, cricket::CA_PRANSWER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_OFFER, cricket::CA_PRANSWER}};
for (auto& param : duplicate_params) {
local_desc.connection_role = param.local_role;
remote_desc.connection_role = param.remote_role;
ASSERT_TRUE(transport_->SetRemoteTransportDescription(
remote_desc, param.remote_action, nullptr));
ASSERT_TRUE(transport_->SetLocalTransportDescription(
local_desc, param.local_action, nullptr));
EXPECT_FALSE(
transport_->NegotiateRole(param.local_action, &ssl_role, &error_desc));
}
// Invalid parameters due to the offerer not using ACTPASS.
NegotiateRoleParams offerer_without_actpass_params[] = {
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_ANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_ANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_ANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_PRANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_PRANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTPASS, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_PRANSWER, cricket::CA_OFFER},
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_OFFER, cricket::CA_ANSWER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_OFFER, cricket::CA_ANSWER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_OFFER, cricket::CA_ANSWER},
{cricket::CONNECTIONROLE_ACTIVE, cricket::CONNECTIONROLE_PASSIVE,
cricket::CA_OFFER, cricket::CA_PRANSWER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_ACTIVE,
cricket::CA_OFFER, cricket::CA_PRANSWER},
{cricket::CONNECTIONROLE_PASSIVE, cricket::CONNECTIONROLE_ACTPASS,
cricket::CA_OFFER, cricket::CA_PRANSWER}};
for (auto& param : offerer_without_actpass_params) {
local_desc.connection_role = param.local_role;
remote_desc.connection_role = param.remote_role;
ASSERT_TRUE(transport_->SetRemoteTransportDescription(
remote_desc, param.remote_action, nullptr));
ASSERT_TRUE(transport_->SetLocalTransportDescription(
local_desc, param.local_action, nullptr));
EXPECT_FALSE(
transport_->NegotiateRole(param.local_action, &ssl_role, &error_desc));
}
}