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webrtc/p2p/client/basic_port_allocator_unittest.cc
Philipp Hancke b395f5bd5c move relay server priority assignment to port_allocator 
which knows more about the internals of ICE.
Remove the relay server config priority field which was used to
specify the relative priority of TURN servers. This is now handled
internally by CreateRelayPortArgs without being exposed.

Also rename BasicPortAllocator::AddTurnServer to
BasicPortAllocator::AddTurnServerForTesting since it is a test-only
method.

BUG=webrtc:13195,webrtc:14539

Change-Id: Id36cbf0187b7a84d1a9b53860f31994f3c7589f0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/280224
Commit-Queue: Philipp Hancke <phancke@microsoft.com>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Jonas Oreland <jonaso@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38520}
2022-11-01 09:59:37 +00:00

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/*
* Copyright 2009 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 "p2p/client/basic_port_allocator.h"
#include <memory>
#include <ostream> // no-presubmit-check TODO(webrtc:8982)
#include "absl/algorithm/container.h"
#include "absl/strings/string_view.h"
#include "p2p/base/basic_packet_socket_factory.h"
#include "p2p/base/p2p_constants.h"
#include "p2p/base/stun_port.h"
#include "p2p/base/stun_request.h"
#include "p2p/base/stun_server.h"
#include "p2p/base/test_stun_server.h"
#include "p2p/base/test_turn_server.h"
#include "rtc_base/fake_clock.h"
#include "rtc_base/fake_mdns_responder.h"
#include "rtc_base/fake_network.h"
#include "rtc_base/firewall_socket_server.h"
#include "rtc_base/gunit.h"
#include "rtc_base/ip_address.h"
#include "rtc_base/logging.h"
#include "rtc_base/nat_server.h"
#include "rtc_base/nat_socket_factory.h"
#include "rtc_base/nat_types.h"
#include "rtc_base/net_helper.h"
#include "rtc_base/net_helpers.h"
#include "rtc_base/network.h"
#include "rtc_base/network_constants.h"
#include "rtc_base/network_monitor.h"
#include "rtc_base/socket.h"
#include "rtc_base/socket_address.h"
#include "rtc_base/socket_address_pair.h"
#include "rtc_base/thread.h"
#include "rtc_base/virtual_socket_server.h"
#include "system_wrappers/include/metrics.h"
#include "test/gmock.h"
#include "test/gtest.h"
#include "test/scoped_key_value_config.h"
using rtc::IPAddress;
using rtc::SocketAddress;
using ::testing::Contains;
using ::testing::Not;
#define MAYBE_SKIP_IPV4 \
if (!rtc::HasIPv4Enabled()) { \
RTC_LOG(LS_INFO) << "No IPv4... skipping"; \
return; \
}
static const SocketAddress kAnyAddr("0.0.0.0", 0);
static const SocketAddress kClientAddr("11.11.11.11", 0);
static const SocketAddress kClientAddr2("22.22.22.22", 0);
static const SocketAddress kLoopbackAddr("127.0.0.1", 0);
static const SocketAddress kPrivateAddr("192.168.1.11", 0);
static const SocketAddress kPrivateAddr2("192.168.1.12", 0);
static const SocketAddress kClientIPv6Addr("2401:fa00:4:1000:be30:5bff:fee5:c3",
0);
static const SocketAddress kClientIPv6Addr2(
"2401:fa00:4:2000:be30:5bff:fee5:c3",
0);
static const SocketAddress kClientIPv6Addr3(
"2401:fa00:4:3000:be30:5bff:fee5:c3",
0);
static const SocketAddress kClientIPv6Addr4(
"2401:fa00:4:4000:be30:5bff:fee5:c3",
0);
static const SocketAddress kClientIPv6Addr5(
"2401:fa00:4:5000:be30:5bff:fee5:c3",
0);
static const SocketAddress kNatUdpAddr("77.77.77.77", rtc::NAT_SERVER_UDP_PORT);
static const SocketAddress kNatTcpAddr("77.77.77.77", rtc::NAT_SERVER_TCP_PORT);
static const SocketAddress kRemoteClientAddr("22.22.22.22", 0);
static const SocketAddress kStunAddr("99.99.99.1", cricket::STUN_SERVER_PORT);
static const SocketAddress kTurnUdpIntAddr("99.99.99.4", 3478);
static const SocketAddress kTurnUdpIntIPv6Addr(
"2402:fb00:4:1000:be30:5bff:fee5:c3",
3479);
static const SocketAddress kTurnTcpIntAddr("99.99.99.5", 3478);
static const SocketAddress kTurnTcpIntIPv6Addr(
"2402:fb00:4:2000:be30:5bff:fee5:c3",
3479);
static const SocketAddress kTurnUdpExtAddr("99.99.99.6", 0);
// Minimum and maximum port for port range tests.
static const int kMinPort = 10000;
static const int kMaxPort = 10099;
// Based on ICE_UFRAG_LENGTH
static const char kIceUfrag0[] = "UF00";
// Based on ICE_PWD_LENGTH
static const char kIcePwd0[] = "TESTICEPWD00000000000000";
static const char kContentName[] = "test content";
static const int kDefaultAllocationTimeout = 3000;
static const char kTurnUsername[] = "test";
static const char kTurnPassword[] = "test";
// STUN timeout (with all retries) is cricket::STUN_TOTAL_TIMEOUT.
// Add some margin of error for slow bots.
static const int kStunTimeoutMs = cricket::STUN_TOTAL_TIMEOUT;
constexpr uint64_t kTiebreakerDefault = 44444;
namespace {
void CheckStunKeepaliveIntervalOfAllReadyPorts(
const cricket::PortAllocatorSession* allocator_session,
int expected) {
auto ready_ports = allocator_session->ReadyPorts();
for (const auto* port : ready_ports) {
if (port->Type() == cricket::STUN_PORT_TYPE ||
(port->Type() == cricket::LOCAL_PORT_TYPE &&
port->GetProtocol() == cricket::PROTO_UDP)) {
EXPECT_EQ(
static_cast<const cricket::UDPPort*>(port)->stun_keepalive_delay(),
expected);
}
}
}
} // namespace
namespace cricket {
// Helper for dumping candidates
std::ostream& operator<<(std::ostream& os,
const std::vector<Candidate>& candidates) {
os << '[';
bool first = true;
for (const Candidate& c : candidates) {
if (!first) {
os << ", ";
}
os << c.ToString();
first = false;
}
os << ']';
return os;
}
class BasicPortAllocatorTestBase : public ::testing::Test,
public sigslot::has_slots<> {
public:
BasicPortAllocatorTestBase()
: vss_(new rtc::VirtualSocketServer()),
fss_(new rtc::FirewallSocketServer(vss_.get())),
thread_(fss_.get()),
// Note that the NAT is not used by default. ResetWithStunServerAndNat
// must be called.
nat_factory_(vss_.get(), kNatUdpAddr, kNatTcpAddr),
nat_socket_factory_(new rtc::BasicPacketSocketFactory(&nat_factory_)),
stun_server_(TestStunServer::Create(fss_.get(), kStunAddr)),
turn_server_(rtc::Thread::Current(),
fss_.get(),
kTurnUdpIntAddr,
kTurnUdpExtAddr),
candidate_allocation_done_(false) {
ServerAddresses stun_servers;
stun_servers.insert(kStunAddr);
allocator_ = std::make_unique<BasicPortAllocator>(
&network_manager_,
std::make_unique<rtc::BasicPacketSocketFactory>(fss_.get()),
stun_servers, &field_trials_);
allocator_->Initialize();
allocator_->set_step_delay(kMinimumStepDelay);
allocator_->SetIceTiebreaker(kTiebreakerDefault);
webrtc::metrics::Reset();
}
void AddInterface(const SocketAddress& addr) {
network_manager_.AddInterface(addr);
}
void AddInterface(const SocketAddress& addr, absl::string_view if_name) {
network_manager_.AddInterface(addr, if_name);
}
void AddInterface(const SocketAddress& addr,
absl::string_view if_name,
rtc::AdapterType type) {
network_manager_.AddInterface(addr, if_name, type);
}
// The default source address is the public address that STUN server will
// observe when the endpoint is sitting on the public internet and the local
// port is bound to the "any" address. Intended for simulating the situation
// that client binds the "any" address, and that's also the address returned
// by getsockname/GetLocalAddress, so that the client can learn the actual
// local address only from the STUN response.
void AddInterfaceAsDefaultSourceAddresss(const SocketAddress& addr) {
AddInterface(addr);
// When a binding comes from the any address, the `addr` will be used as the
// srflx address.
vss_->SetDefaultSourceAddress(addr.ipaddr());
}
void RemoveInterface(const SocketAddress& addr) {
network_manager_.RemoveInterface(addr);
}
bool SetPortRange(int min_port, int max_port) {
return allocator_->SetPortRange(min_port, max_port);
}
// Endpoint is on the public network. No STUN or TURN.
void ResetWithNoServersOrNat() {
allocator_.reset(new BasicPortAllocator(
&network_manager_,
std::make_unique<rtc::BasicPacketSocketFactory>(fss_.get())));
allocator_->Initialize();
allocator_->SetIceTiebreaker(kTiebreakerDefault);
allocator_->set_step_delay(kMinimumStepDelay);
}
// Endpoint is behind a NAT, with STUN specified.
void ResetWithStunServerAndNat(const rtc::SocketAddress& stun_server) {
ResetWithStunServer(stun_server, true);
}
// Endpoint is on the public network, with STUN specified.
void ResetWithStunServerNoNat(const rtc::SocketAddress& stun_server) {
ResetWithStunServer(stun_server, false);
}
// Endpoint is on the public network, with TURN specified.
void ResetWithTurnServersNoNat(const rtc::SocketAddress& udp_turn,
const rtc::SocketAddress& tcp_turn) {
ResetWithNoServersOrNat();
AddTurnServers(udp_turn, tcp_turn);
}
RelayServerConfig CreateTurnServers(const rtc::SocketAddress& udp_turn,
const rtc::SocketAddress& tcp_turn) {
RelayServerConfig turn_server;
RelayCredentials credentials(kTurnUsername, kTurnPassword);
turn_server.credentials = credentials;
if (!udp_turn.IsNil()) {
turn_server.ports.push_back(ProtocolAddress(udp_turn, PROTO_UDP));
}
if (!tcp_turn.IsNil()) {
turn_server.ports.push_back(ProtocolAddress(tcp_turn, PROTO_TCP));
}
return turn_server;
}
void AddTurnServers(const rtc::SocketAddress& udp_turn,
const rtc::SocketAddress& tcp_turn) {
RelayServerConfig turn_server = CreateTurnServers(udp_turn, tcp_turn);
allocator_->AddTurnServerForTesting(turn_server);
}
bool CreateSession(int component) {
session_ = CreateSession("session", component);
if (!session_) {
return false;
}
return true;
}
bool CreateSession(int component, absl::string_view content_name) {
session_ = CreateSession("session", content_name, component);
if (!session_) {
return false;
}
return true;
}
std::unique_ptr<PortAllocatorSession> CreateSession(absl::string_view sid,
int component) {
return CreateSession(sid, kContentName, component);
}
std::unique_ptr<PortAllocatorSession> CreateSession(
absl::string_view sid,
absl::string_view content_name,
int component) {
return CreateSession(sid, content_name, component, kIceUfrag0, kIcePwd0);
}
std::unique_ptr<PortAllocatorSession> CreateSession(
absl::string_view sid,
absl::string_view content_name,
int component,
absl::string_view ice_ufrag,
absl::string_view ice_pwd) {
std::unique_ptr<PortAllocatorSession> session =
allocator_->CreateSession(content_name, component, ice_ufrag, ice_pwd);
session->SignalPortReady.connect(this,
&BasicPortAllocatorTestBase::OnPortReady);
session->SignalPortsPruned.connect(
this, &BasicPortAllocatorTestBase::OnPortsPruned);
session->SignalCandidatesReady.connect(
this, &BasicPortAllocatorTestBase::OnCandidatesReady);
session->SignalCandidatesRemoved.connect(
this, &BasicPortAllocatorTestBase::OnCandidatesRemoved);
session->SignalCandidatesAllocationDone.connect(
this, &BasicPortAllocatorTestBase::OnCandidatesAllocationDone);
session->set_ice_tiebreaker(kTiebreakerDefault);
return session;
}
// Return true if the addresses are the same, or the port is 0 in `pattern`
// (acting as a wildcard) and the IPs are the same.
// Even with a wildcard port, the port of the address should be nonzero if
// the IP is nonzero.
static bool AddressMatch(const SocketAddress& address,
const SocketAddress& pattern) {
return address.ipaddr() == pattern.ipaddr() &&
((pattern.port() == 0 &&
(address.port() != 0 || IPIsAny(address.ipaddr()))) ||
(pattern.port() != 0 && address.port() == pattern.port()));
}
// Returns the number of ports that have matching type, protocol and
// address.
static int CountPorts(const std::vector<PortInterface*>& ports,
absl::string_view type,
ProtocolType protocol,
const SocketAddress& client_addr) {
return absl::c_count_if(
ports, [type, protocol, client_addr](PortInterface* port) {
return port->Type() == type && port->GetProtocol() == protocol &&
port->Network()->GetBestIP() == client_addr.ipaddr();
});
}
static int CountCandidates(const std::vector<Candidate>& candidates,
absl::string_view type,
absl::string_view proto,
const SocketAddress& addr) {
return absl::c_count_if(
candidates, [type, proto, addr](const Candidate& c) {
return c.type() == type && c.protocol() == proto &&
AddressMatch(c.address(), addr);
});
}
// Find a candidate and return it.
static bool FindCandidate(const std::vector<Candidate>& candidates,
absl::string_view type,
absl::string_view proto,
const SocketAddress& addr,
Candidate* found) {
auto it =
absl::c_find_if(candidates, [type, proto, addr](const Candidate& c) {
return c.type() == type && c.protocol() == proto &&
AddressMatch(c.address(), addr);
});
if (it != candidates.end() && found) {
*found = *it;
}
return it != candidates.end();
}
// Convenience method to call FindCandidate with no return.
static bool HasCandidate(const std::vector<Candidate>& candidates,
absl::string_view type,
absl::string_view proto,
const SocketAddress& addr) {
return FindCandidate(candidates, type, proto, addr, nullptr);
}
// Version of HasCandidate that also takes a related address.
static bool HasCandidateWithRelatedAddr(
const std::vector<Candidate>& candidates,
absl::string_view type,
absl::string_view proto,
const SocketAddress& addr,
const SocketAddress& related_addr) {
return absl::c_any_of(
candidates, [type, proto, addr, related_addr](const Candidate& c) {
return c.type() == type && c.protocol() == proto &&
AddressMatch(c.address(), addr) &&
AddressMatch(c.related_address(), related_addr);
});
}
static bool CheckPort(const rtc::SocketAddress& addr,
int min_port,
int max_port) {
return (addr.port() >= min_port && addr.port() <= max_port);
}
static bool HasNetwork(const std::vector<const rtc::Network*>& networks,
const rtc::Network& to_be_found) {
auto it =
absl::c_find_if(networks, [to_be_found](const rtc::Network* network) {
return network->description() == to_be_found.description() &&
network->name() == to_be_found.name() &&
network->prefix() == to_be_found.prefix();
});
return it != networks.end();
}
void OnCandidatesAllocationDone(PortAllocatorSession* session) {
// We should only get this callback once, except in the mux test where
// we have multiple port allocation sessions.
if (session == session_.get()) {
ASSERT_FALSE(candidate_allocation_done_);
candidate_allocation_done_ = true;
}
EXPECT_TRUE(session->CandidatesAllocationDone());
}
// Check if all ports allocated have send-buffer size `expected`. If
// `expected` == -1, check if GetOptions returns SOCKET_ERROR.
void CheckSendBufferSizesOfAllPorts(int expected) {
std::vector<PortInterface*>::iterator it;
for (it = ports_.begin(); it < ports_.end(); ++it) {
int send_buffer_size;
if (expected == -1) {
EXPECT_EQ(SOCKET_ERROR,
(*it)->GetOption(rtc::Socket::OPT_SNDBUF, &send_buffer_size));
} else {
EXPECT_EQ(0,
(*it)->GetOption(rtc::Socket::OPT_SNDBUF, &send_buffer_size));
ASSERT_EQ(expected, send_buffer_size);
}
}
}
rtc::VirtualSocketServer* virtual_socket_server() { return vss_.get(); }
protected:
BasicPortAllocator& allocator() { return *allocator_; }
void OnPortReady(PortAllocatorSession* ses, PortInterface* port) {
RTC_LOG(LS_INFO) << "OnPortReady: " << port->ToString();
ports_.push_back(port);
// Make sure the new port is added to ReadyPorts.
auto ready_ports = ses->ReadyPorts();
EXPECT_THAT(ready_ports, Contains(port));
}
void OnPortsPruned(PortAllocatorSession* ses,
const std::vector<PortInterface*>& pruned_ports) {
RTC_LOG(LS_INFO) << "Number of ports pruned: " << pruned_ports.size();
auto ready_ports = ses->ReadyPorts();
auto new_end = ports_.end();
for (PortInterface* port : pruned_ports) {
new_end = std::remove(ports_.begin(), new_end, port);
// Make sure the pruned port is not in ReadyPorts.
EXPECT_THAT(ready_ports, Not(Contains(port)));
}
ports_.erase(new_end, ports_.end());
}
void OnCandidatesReady(PortAllocatorSession* ses,
const std::vector<Candidate>& candidates) {
for (const Candidate& candidate : candidates) {
RTC_LOG(LS_INFO) << "OnCandidatesReady: " << candidate.ToString();
// Sanity check that the ICE component is set.
EXPECT_EQ(ICE_CANDIDATE_COMPONENT_RTP, candidate.component());
candidates_.push_back(candidate);
}
// Make sure the new candidates are added to Candidates.
auto ses_candidates = ses->ReadyCandidates();
for (const Candidate& candidate : candidates) {
EXPECT_THAT(ses_candidates, Contains(candidate));
}
}
void OnCandidatesRemoved(PortAllocatorSession* session,
const std::vector<Candidate>& removed_candidates) {
auto new_end = std::remove_if(
candidates_.begin(), candidates_.end(),
[removed_candidates](Candidate& candidate) {
for (const Candidate& removed_candidate : removed_candidates) {
if (candidate.MatchesForRemoval(removed_candidate)) {
return true;
}
}
return false;
});
candidates_.erase(new_end, candidates_.end());
}
bool HasRelayAddress(const ProtocolAddress& proto_addr) {
for (size_t i = 0; i < allocator_->turn_servers().size(); ++i) {
RelayServerConfig server_config = allocator_->turn_servers()[i];
PortList::const_iterator relay_port;
for (relay_port = server_config.ports.begin();
relay_port != server_config.ports.end(); ++relay_port) {
if (proto_addr.address == relay_port->address &&
proto_addr.proto == relay_port->proto)
return true;
}
}
return false;
}
void ResetWithStunServer(const rtc::SocketAddress& stun_server,
bool with_nat) {
if (with_nat) {
nat_server_.reset(new rtc::NATServer(
rtc::NAT_OPEN_CONE, vss_.get(), kNatUdpAddr, kNatTcpAddr, vss_.get(),
rtc::SocketAddress(kNatUdpAddr.ipaddr(), 0)));
} else {
nat_socket_factory_ =
std::make_unique<rtc::BasicPacketSocketFactory>(fss_.get());
}
ServerAddresses stun_servers;
if (!stun_server.IsNil()) {
stun_servers.insert(stun_server);
}
allocator_.reset(new BasicPortAllocator(&network_manager_,
nat_socket_factory_.get(),
stun_servers, &field_trials_));
allocator_->Initialize();
allocator_->set_step_delay(kMinimumStepDelay);
}
std::unique_ptr<rtc::VirtualSocketServer> vss_;
std::unique_ptr<rtc::FirewallSocketServer> fss_;
rtc::AutoSocketServerThread thread_;
std::unique_ptr<rtc::NATServer> nat_server_;
rtc::NATSocketFactory nat_factory_;
std::unique_ptr<rtc::BasicPacketSocketFactory> nat_socket_factory_;
std::unique_ptr<TestStunServer> stun_server_;
TestTurnServer turn_server_;
rtc::FakeNetworkManager network_manager_;
std::unique_ptr<BasicPortAllocator> allocator_;
std::unique_ptr<PortAllocatorSession> session_;
std::vector<PortInterface*> ports_;
std::vector<Candidate> candidates_;
bool candidate_allocation_done_;
webrtc::test::ScopedKeyValueConfig field_trials_;
};
class BasicPortAllocatorTestWithRealClock : public BasicPortAllocatorTestBase {
};
class FakeClockBase {
public:
rtc::ScopedFakeClock fake_clock;
};
class BasicPortAllocatorTest : public FakeClockBase,
public BasicPortAllocatorTestBase {
public:
// This function starts the port/address gathering and check the existence of
// candidates as specified. When `expect_stun_candidate` is true,
// `stun_candidate_addr` carries the expected reflective address, which is
// also the related address for TURN candidate if it is expected. Otherwise,
// it should be ignore.
void CheckDisableAdapterEnumeration(
uint32_t total_ports,
const rtc::IPAddress& host_candidate_addr,
const rtc::IPAddress& stun_candidate_addr,
const rtc::IPAddress& relay_candidate_udp_transport_addr,
const rtc::IPAddress& relay_candidate_tcp_transport_addr) {
network_manager_.set_default_local_addresses(kPrivateAddr.ipaddr(),
rtc::IPAddress());
if (!session_) {
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
}
session_->set_flags(session_->flags() |
PORTALLOCATOR_DISABLE_ADAPTER_ENUMERATION |
PORTALLOCATOR_ENABLE_SHARED_SOCKET);
allocator().set_allow_tcp_listen(false);
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
uint32_t total_candidates = 0;
if (!host_candidate_addr.IsNil()) {
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp",
rtc::SocketAddress(kPrivateAddr.ipaddr(), 0)));
++total_candidates;
}
if (!stun_candidate_addr.IsNil()) {
rtc::SocketAddress related_address(host_candidate_addr, 0);
if (host_candidate_addr.IsNil()) {
related_address.SetIP(rtc::GetAnyIP(stun_candidate_addr.family()));
}
EXPECT_TRUE(HasCandidateWithRelatedAddr(
candidates_, "stun", "udp",
rtc::SocketAddress(stun_candidate_addr, 0), related_address));
++total_candidates;
}
if (!relay_candidate_udp_transport_addr.IsNil()) {
EXPECT_TRUE(HasCandidateWithRelatedAddr(
candidates_, "relay", "udp",
rtc::SocketAddress(relay_candidate_udp_transport_addr, 0),
rtc::SocketAddress(stun_candidate_addr, 0)));
++total_candidates;
}
if (!relay_candidate_tcp_transport_addr.IsNil()) {
EXPECT_TRUE(HasCandidateWithRelatedAddr(
candidates_, "relay", "udp",
rtc::SocketAddress(relay_candidate_tcp_transport_addr, 0),
rtc::SocketAddress(stun_candidate_addr, 0)));
++total_candidates;
}
EXPECT_EQ(total_candidates, candidates_.size());
EXPECT_EQ(total_ports, ports_.size());
}
void TestIPv6TurnPortPrunesIPv4TurnPort() {
turn_server_.AddInternalSocket(kTurnUdpIntIPv6Addr, PROTO_UDP);
// Add two IP addresses on the same interface.
AddInterface(kClientAddr, "net1");
AddInterface(kClientIPv6Addr, "net1");
allocator_.reset(new BasicPortAllocator(
&network_manager_,
std::make_unique<rtc::BasicPacketSocketFactory>(fss_.get())));
allocator_->Initialize();
allocator_->SetConfiguration(allocator_->stun_servers(),
allocator_->turn_servers(), 0,
webrtc::PRUNE_BASED_ON_PRIORITY);
AddTurnServers(kTurnUdpIntIPv6Addr, rtc::SocketAddress());
AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
allocator_->set_step_delay(kMinimumStepDelay);
allocator_->set_flags(
allocator().flags() | PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_ENABLE_IPV6 | PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Three ports (one IPv4 STUN, one IPv6 STUN and one TURN) will be ready.
EXPECT_EQ(3U, session_->ReadyPorts().size());
EXPECT_EQ(3U, ports_.size());
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_UDP, kClientAddr));
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_UDP, kClientIPv6Addr));
EXPECT_EQ(1, CountPorts(ports_, "relay", PROTO_UDP, kClientIPv6Addr));
EXPECT_EQ(0, CountPorts(ports_, "relay", PROTO_UDP, kClientAddr));
// Now that we remove candidates when a TURN port is pruned, there will be
// exactly 3 candidates in both `candidates_` and `ready_candidates`.
EXPECT_EQ(3U, candidates_.size());
const std::vector<Candidate>& ready_candidates =
session_->ReadyCandidates();
EXPECT_EQ(3U, ready_candidates.size());
EXPECT_TRUE(HasCandidate(ready_candidates, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(ready_candidates, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0)));
}
void TestTurnPortPrunesWithUdpAndTcpPorts(
webrtc::PortPrunePolicy prune_policy,
bool tcp_pruned) {
turn_server_.AddInternalSocket(kTurnTcpIntAddr, PROTO_TCP);
AddInterface(kClientAddr);
allocator_.reset(new BasicPortAllocator(
&network_manager_,
std::make_unique<rtc::BasicPacketSocketFactory>(fss_.get())));
allocator_->Initialize();
allocator_->SetConfiguration(allocator_->stun_servers(),
allocator_->turn_servers(), 0, prune_policy);
AddTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
allocator_->set_step_delay(kMinimumStepDelay);
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Only 2 ports (one STUN and one TURN) are actually being used.
EXPECT_EQ(2U, session_->ReadyPorts().size());
// We have verified that each port, when it is added to `ports_`, it is
// found in `ready_ports`, and when it is pruned, it is not found in
// `ready_ports`, so we only need to verify the content in one of them.
EXPECT_EQ(2U, ports_.size());
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_UDP, kClientAddr));
int num_udp_ports = tcp_pruned ? 1 : 0;
EXPECT_EQ(num_udp_ports,
CountPorts(ports_, "relay", PROTO_UDP, kClientAddr));
EXPECT_EQ(1 - num_udp_ports,
CountPorts(ports_, "relay", PROTO_TCP, kClientAddr));
// Now that we remove candidates when a TURN port is pruned, `candidates_`
// should only contains two candidates regardless whether the TCP TURN port
// is created before or after the UDP turn port.
EXPECT_EQ(2U, candidates_.size());
// There will only be 2 candidates in `ready_candidates` because it only
// includes the candidates in the ready ports.
const std::vector<Candidate>& ready_candidates =
session_->ReadyCandidates();
EXPECT_EQ(2U, ready_candidates.size());
EXPECT_TRUE(HasCandidate(ready_candidates, "local", "udp", kClientAddr));
// The external candidate is always udp.
EXPECT_TRUE(HasCandidate(ready_candidates, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0)));
}
void TestEachInterfaceHasItsOwnTurnPorts() {
turn_server_.AddInternalSocket(kTurnTcpIntAddr, PROTO_TCP);
turn_server_.AddInternalSocket(kTurnUdpIntIPv6Addr, PROTO_UDP);
turn_server_.AddInternalSocket(kTurnTcpIntIPv6Addr, PROTO_TCP);
// Add two interfaces both having IPv4 and IPv6 addresses.
AddInterface(kClientAddr, "net1", rtc::ADAPTER_TYPE_WIFI);
AddInterface(kClientIPv6Addr, "net1", rtc::ADAPTER_TYPE_WIFI);
AddInterface(kClientAddr2, "net2", rtc::ADAPTER_TYPE_CELLULAR);
AddInterface(kClientIPv6Addr2, "net2", rtc::ADAPTER_TYPE_CELLULAR);
allocator_.reset(new BasicPortAllocator(
&network_manager_,
std::make_unique<rtc::BasicPacketSocketFactory>(fss_.get())));
allocator_->Initialize();
allocator_->SetConfiguration(allocator_->stun_servers(),
allocator_->turn_servers(), 0,
webrtc::PRUNE_BASED_ON_PRIORITY);
// Have both UDP/TCP and IPv4/IPv6 TURN ports.
AddTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
AddTurnServers(kTurnUdpIntIPv6Addr, kTurnTcpIntIPv6Addr);
allocator_->set_step_delay(kMinimumStepDelay);
allocator_->set_flags(
allocator().flags() | PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_ENABLE_IPV6 | PORTALLOCATOR_ENABLE_IPV6_ON_WIFI);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// 10 ports (4 STUN and 1 TURN ports on each interface) will be ready to
// use.
EXPECT_EQ(10U, session_->ReadyPorts().size());
EXPECT_EQ(10U, ports_.size());
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_UDP, kClientAddr));
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_UDP, kClientAddr2));
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_UDP, kClientIPv6Addr));
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_UDP, kClientIPv6Addr2));
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_TCP, kClientAddr));
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_TCP, kClientAddr2));
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_TCP, kClientIPv6Addr));
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_TCP, kClientIPv6Addr2));
EXPECT_EQ(1, CountPorts(ports_, "relay", PROTO_UDP, kClientIPv6Addr));
EXPECT_EQ(1, CountPorts(ports_, "relay", PROTO_UDP, kClientIPv6Addr2));
// Now that we remove candidates when TURN ports are pruned, there will be
// exactly 10 candidates in `candidates_`.
EXPECT_EQ(10U, candidates_.size());
const std::vector<Candidate>& ready_candidates =
session_->ReadyCandidates();
EXPECT_EQ(10U, ready_candidates.size());
EXPECT_TRUE(HasCandidate(ready_candidates, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(ready_candidates, "local", "udp", kClientAddr2));
EXPECT_TRUE(
HasCandidate(ready_candidates, "local", "udp", kClientIPv6Addr));
EXPECT_TRUE(
HasCandidate(ready_candidates, "local", "udp", kClientIPv6Addr2));
EXPECT_TRUE(HasCandidate(ready_candidates, "local", "tcp", kClientAddr));
EXPECT_TRUE(HasCandidate(ready_candidates, "local", "tcp", kClientAddr2));
EXPECT_TRUE(
HasCandidate(ready_candidates, "local", "tcp", kClientIPv6Addr));
EXPECT_TRUE(
HasCandidate(ready_candidates, "local", "tcp", kClientIPv6Addr2));
EXPECT_TRUE(HasCandidate(ready_candidates, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0)));
}
};
// Tests that we can init the port allocator and create a session.
TEST_F(BasicPortAllocatorTest, TestBasic) {
EXPECT_EQ(&network_manager_, allocator().network_manager());
EXPECT_EQ(kStunAddr, *allocator().stun_servers().begin());
ASSERT_EQ(0u, allocator().turn_servers().size());
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
EXPECT_FALSE(session_->CandidatesAllocationDone());
}
// Tests that our network filtering works properly.
TEST_F(BasicPortAllocatorTest, TestIgnoreOnlyLoopbackNetworkByDefault) {
AddInterface(SocketAddress(IPAddress(0x12345600U), 0), "test_eth0",
rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(SocketAddress(IPAddress(0x12345601U), 0), "test_wlan0",
rtc::ADAPTER_TYPE_WIFI);
AddInterface(SocketAddress(IPAddress(0x12345602U), 0), "test_cell0",
rtc::ADAPTER_TYPE_CELLULAR);
AddInterface(SocketAddress(IPAddress(0x12345603U), 0), "test_vpn0",
rtc::ADAPTER_TYPE_VPN);
AddInterface(SocketAddress(IPAddress(0x12345604U), 0), "test_lo",
rtc::ADAPTER_TYPE_LOOPBACK);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->set_flags(PORTALLOCATOR_DISABLE_STUN | PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_DISABLE_TCP);
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(4U, candidates_.size());
for (const Candidate& candidate : candidates_) {
EXPECT_LT(candidate.address().ip(), 0x12345604U);
}
}
TEST_F(BasicPortAllocatorTest, TestIgnoreNetworksAccordingToIgnoreMask) {
AddInterface(SocketAddress(IPAddress(0x12345600U), 0), "test_eth0",
rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(SocketAddress(IPAddress(0x12345601U), 0), "test_wlan0",
rtc::ADAPTER_TYPE_WIFI);
AddInterface(SocketAddress(IPAddress(0x12345602U), 0), "test_cell0",
rtc::ADAPTER_TYPE_CELLULAR);
allocator_->SetNetworkIgnoreMask(rtc::ADAPTER_TYPE_ETHERNET |
rtc::ADAPTER_TYPE_LOOPBACK |
rtc::ADAPTER_TYPE_WIFI);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->set_flags(PORTALLOCATOR_DISABLE_STUN | PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_DISABLE_TCP);
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(1U, candidates_.size());
EXPECT_EQ(0x12345602U, candidates_[0].address().ip());
}
// Test that when the PORTALLOCATOR_DISABLE_COSTLY_NETWORKS flag is set and
// both Wi-Fi and cell interfaces are available, only Wi-Fi is used.
TEST_F(BasicPortAllocatorTest,
WifiUsedInsteadOfCellWhenCostlyNetworksDisabled) {
SocketAddress wifi(IPAddress(0x12345600U), 0);
SocketAddress cell(IPAddress(0x12345601U), 0);
AddInterface(wifi, "test_wlan0", rtc::ADAPTER_TYPE_WIFI);
AddInterface(cell, "test_cell0", rtc::ADAPTER_TYPE_CELLULAR);
// Disable all but UDP candidates to make the test simpler.
allocator().set_flags(cricket::PORTALLOCATOR_DISABLE_STUN |
cricket::PORTALLOCATOR_DISABLE_RELAY |
cricket::PORTALLOCATOR_DISABLE_TCP |
cricket::PORTALLOCATOR_DISABLE_COSTLY_NETWORKS);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Should only get one Wi-Fi candidate.
EXPECT_EQ(1U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", wifi));
}
// Test that when the PORTALLOCATOR_DISABLE_COSTLY_NETWORKS flag is set and
// both "unknown" and cell interfaces are available, only the unknown are used.
// The unknown interface may be something that ultimately uses Wi-Fi, so we do
// this to be on the safe side.
TEST_F(BasicPortAllocatorTest,
UnknownInterfaceUsedInsteadOfCellWhenCostlyNetworksDisabled) {
SocketAddress cell(IPAddress(0x12345601U), 0);
SocketAddress unknown1(IPAddress(0x12345602U), 0);
SocketAddress unknown2(IPAddress(0x12345603U), 0);
AddInterface(cell, "test_cell0", rtc::ADAPTER_TYPE_CELLULAR);
AddInterface(unknown1, "test_unknown0", rtc::ADAPTER_TYPE_UNKNOWN);
AddInterface(unknown2, "test_unknown1", rtc::ADAPTER_TYPE_UNKNOWN);
// Disable all but UDP candidates to make the test simpler.
allocator().set_flags(cricket::PORTALLOCATOR_DISABLE_STUN |
cricket::PORTALLOCATOR_DISABLE_RELAY |
cricket::PORTALLOCATOR_DISABLE_TCP |
cricket::PORTALLOCATOR_DISABLE_COSTLY_NETWORKS);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Should only get two candidates, none of which is cell.
EXPECT_EQ(2U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", unknown1));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", unknown2));
}
// Test that when the PORTALLOCATOR_DISABLE_COSTLY_NETWORKS flag is set and
// there are a mix of Wi-Fi, "unknown" and cell interfaces, only the Wi-Fi
// interface is used.
TEST_F(BasicPortAllocatorTest,
WifiUsedInsteadOfUnknownOrCellWhenCostlyNetworksDisabled) {
SocketAddress wifi(IPAddress(0x12345600U), 0);
SocketAddress cellular(IPAddress(0x12345601U), 0);
SocketAddress unknown1(IPAddress(0x12345602U), 0);
SocketAddress unknown2(IPAddress(0x12345603U), 0);
AddInterface(wifi, "test_wlan0", rtc::ADAPTER_TYPE_WIFI);
AddInterface(cellular, "test_cell0", rtc::ADAPTER_TYPE_CELLULAR);
AddInterface(unknown1, "test_unknown0", rtc::ADAPTER_TYPE_UNKNOWN);
AddInterface(unknown2, "test_unknown1", rtc::ADAPTER_TYPE_UNKNOWN);
// Disable all but UDP candidates to make the test simpler.
allocator().set_flags(cricket::PORTALLOCATOR_DISABLE_STUN |
cricket::PORTALLOCATOR_DISABLE_RELAY |
cricket::PORTALLOCATOR_DISABLE_TCP |
cricket::PORTALLOCATOR_DISABLE_COSTLY_NETWORKS);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Should only get one Wi-Fi candidate.
EXPECT_EQ(1U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", wifi));
}
// Test that if the PORTALLOCATOR_DISABLE_COSTLY_NETWORKS flag is set, but the
// only interface available is cellular, it ends up used anyway. A costly
// connection is always better than no connection.
TEST_F(BasicPortAllocatorTest,
CellUsedWhenCostlyNetworksDisabledButThereAreNoOtherInterfaces) {
SocketAddress cellular(IPAddress(0x12345601U), 0);
AddInterface(cellular, "test_cell0", rtc::ADAPTER_TYPE_CELLULAR);
// Disable all but UDP candidates to make the test simpler.
allocator().set_flags(cricket::PORTALLOCATOR_DISABLE_STUN |
cricket::PORTALLOCATOR_DISABLE_RELAY |
cricket::PORTALLOCATOR_DISABLE_TCP |
cricket::PORTALLOCATOR_DISABLE_COSTLY_NETWORKS);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Make sure we got the cell candidate.
EXPECT_EQ(1U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", cellular));
}
// Test that if both PORTALLOCATOR_DISABLE_COSTLY_NETWORKS is set, and there is
// a WiFi network with link-local IP address and a cellular network, then the
// cellular candidate will still be gathered.
TEST_F(BasicPortAllocatorTest,
CellNotRemovedWhenCostlyNetworksDisabledAndWifiIsLinkLocal) {
SocketAddress wifi_link_local("169.254.0.1", 0);
SocketAddress cellular(IPAddress(0x12345601U), 0);
AddInterface(wifi_link_local, "test_wlan0", rtc::ADAPTER_TYPE_WIFI);
AddInterface(cellular, "test_cell0", rtc::ADAPTER_TYPE_CELLULAR);
allocator().set_flags(cricket::PORTALLOCATOR_DISABLE_STUN |
cricket::PORTALLOCATOR_DISABLE_RELAY |
cricket::PORTALLOCATOR_DISABLE_TCP |
cricket::PORTALLOCATOR_DISABLE_COSTLY_NETWORKS);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Make sure we got both wifi and cell candidates.
EXPECT_EQ(2U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", wifi_link_local));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", cellular));
}
// Test that if both PORTALLOCATOR_DISABLE_COSTLY_NETWORKS is set, and there is
// a WiFi network with link-local IP address, a WiFi network with a normal IP
// address and a cellular network, then the cellular candidate will not be
// gathered.
TEST_F(BasicPortAllocatorTest,
CellRemovedWhenCostlyNetworksDisabledAndBothWifisPresent) {
SocketAddress wifi(IPAddress(0x12345600U), 0);
SocketAddress wifi_link_local("169.254.0.1", 0);
SocketAddress cellular(IPAddress(0x12345601U), 0);
AddInterface(wifi, "test_wlan0", rtc::ADAPTER_TYPE_WIFI);
AddInterface(wifi_link_local, "test_wlan1", rtc::ADAPTER_TYPE_WIFI);
AddInterface(cellular, "test_cell0", rtc::ADAPTER_TYPE_CELLULAR);
allocator().set_flags(cricket::PORTALLOCATOR_DISABLE_STUN |
cricket::PORTALLOCATOR_DISABLE_RELAY |
cricket::PORTALLOCATOR_DISABLE_TCP |
cricket::PORTALLOCATOR_DISABLE_COSTLY_NETWORKS);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Make sure we got only wifi candidates.
EXPECT_EQ(2U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", wifi));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", wifi_link_local));
}
// Test that the adapter types of the Ethernet and the VPN can be correctly
// identified so that the Ethernet has a lower network cost than the VPN, and
// the Ethernet is not filtered out if PORTALLOCATOR_DISABLE_COSTLY_NETWORKS is
// set.
TEST_F(BasicPortAllocatorTest,
EthernetIsNotFilteredOutWhenCostlyNetworksDisabledAndVpnPresent) {
AddInterface(kClientAddr, "eth0", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientAddr2, "tap0", rtc::ADAPTER_TYPE_VPN);
allocator().set_flags(PORTALLOCATOR_DISABLE_COSTLY_NETWORKS |
PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// The VPN tap0 network should be filtered out as a costly network, and we
// should have a UDP port and a STUN port from the Ethernet eth0.
ASSERT_EQ(2U, ports_.size());
EXPECT_EQ(ports_[0]->Network()->name(), "eth0");
EXPECT_EQ(ports_[1]->Network()->name(), "eth0");
}
// Test that no more than allocator.max_ipv6_networks() IPv6 networks are used
// to gather candidates.
TEST_F(BasicPortAllocatorTest, MaxIpv6NetworksLimitEnforced) {
// Add three IPv6 network interfaces, but tell the allocator to only use two.
allocator().set_max_ipv6_networks(2);
AddInterface(kClientIPv6Addr, "eth0", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr2, "eth1", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr3, "eth2", rtc::ADAPTER_TYPE_ETHERNET);
// To simplify the test, only gather UDP host candidates.
allocator().set_flags(PORTALLOCATOR_ENABLE_IPV6 | PORTALLOCATOR_DISABLE_TCP |
PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_DISABLE_RELAY);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(2U, candidates_.size());
// Ensure the expected two interfaces (eth0 and eth1) were used.
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr2));
}
// Ensure that allocator.max_ipv6_networks() doesn't prevent IPv4 networks from
// being used.
TEST_F(BasicPortAllocatorTest, MaxIpv6NetworksLimitDoesNotImpactIpv4Networks) {
// Set the "max IPv6" limit to 1, adding two IPv6 and two IPv4 networks.
allocator().set_max_ipv6_networks(1);
AddInterface(kClientIPv6Addr, "eth0", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr2, "eth1", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientAddr, "eth2", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientAddr2, "eth3", rtc::ADAPTER_TYPE_ETHERNET);
// To simplify the test, only gather UDP host candidates.
allocator().set_flags(PORTALLOCATOR_ENABLE_IPV6 | PORTALLOCATOR_DISABLE_TCP |
PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_DISABLE_RELAY);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
// Ensure that only one IPv6 interface was used, but both IPv4 interfaces
// were used.
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr2));
}
// Test that we could use loopback interface as host candidate.
TEST_F(BasicPortAllocatorTest, TestLoopbackNetworkInterface) {
AddInterface(kLoopbackAddr, "test_loopback", rtc::ADAPTER_TYPE_LOOPBACK);
allocator_->SetNetworkIgnoreMask(0);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->set_flags(PORTALLOCATOR_DISABLE_STUN | PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_DISABLE_TCP);
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(1U, candidates_.size());
}
// Tests that we can get all the desired addresses successfully.
TEST_F(BasicPortAllocatorTest, TestGetAllPortsWithMinimumStepDelay) {
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
EXPECT_EQ(3U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "stun", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
}
// Test that when the same network interface is brought down and up, the
// port allocator session will restart a new allocation sequence if
// it is not stopped.
TEST_F(BasicPortAllocatorTest, TestSameNetworkDownAndUpWhenSessionNotStopped) {
std::string if_name("test_net0");
AddInterface(kClientAddr, if_name);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
EXPECT_EQ(3U, ports_.size());
candidate_allocation_done_ = false;
candidates_.clear();
ports_.clear();
// Disable socket creation to simulate the network interface being down. When
// no network interfaces are available, BasicPortAllocator will fall back to
// binding to the "ANY" address, so we need to make sure that fails too.
fss_->set_tcp_sockets_enabled(false);
fss_->set_udp_sockets_enabled(false);
RemoveInterface(kClientAddr);
SIMULATED_WAIT(false, 1000, fake_clock);
EXPECT_EQ(0U, candidates_.size());
ports_.clear();
candidate_allocation_done_ = false;
// When the same interfaces are added again, new candidates/ports should be
// generated.
fss_->set_tcp_sockets_enabled(true);
fss_->set_udp_sockets_enabled(true);
AddInterface(kClientAddr, if_name);
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
EXPECT_EQ(3U, ports_.size());
}
// Test that when the same network interface is brought down and up, the
// port allocator session will not restart a new allocation sequence if
// it is stopped.
TEST_F(BasicPortAllocatorTest, TestSameNetworkDownAndUpWhenSessionStopped) {
std::string if_name("test_net0");
AddInterface(kClientAddr, if_name);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
EXPECT_EQ(3U, ports_.size());
session_->StopGettingPorts();
candidates_.clear();
ports_.clear();
RemoveInterface(kClientAddr);
// Wait one (simulated) second and then verify no new candidates have
// appeared.
SIMULATED_WAIT(false, 1000, fake_clock);
EXPECT_EQ(0U, candidates_.size());
EXPECT_EQ(0U, ports_.size());
// When the same interfaces are added again, new candidates/ports should not
// be generated because the session has stopped.
AddInterface(kClientAddr, if_name);
SIMULATED_WAIT(false, 1000, fake_clock);
EXPECT_EQ(0U, candidates_.size());
EXPECT_EQ(0U, ports_.size());
}
// Similar to the above tests, but tests a situation when sockets can't be
// bound to a network interface, then after a network change event can be.
// Related bug: https://bugs.chromium.org/p/webrtc/issues/detail?id=8256
TEST_F(BasicPortAllocatorTest, CandidatesRegatheredAfterBindingFails) {
// Only test local ports to simplify test.
ResetWithNoServersOrNat();
// Provide a situation where the interface appears to be available, but
// binding the sockets fails. See bug for description of when this can
// happen.
std::string if_name("test_net0");
AddInterface(kClientAddr, if_name);
fss_->set_tcp_sockets_enabled(false);
fss_->set_udp_sockets_enabled(false);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Make sure we actually prevented candidates from being gathered (other than
// a single TCP active candidate, since that doesn't require creating a
// socket).
ASSERT_EQ(1U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
candidate_allocation_done_ = false;
// Now simulate the interface coming up, with the newfound ability to bind
// sockets.
fss_->set_tcp_sockets_enabled(true);
fss_->set_udp_sockets_enabled(true);
AddInterface(kClientAddr, if_name);
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Should get UDP and TCP candidate.
ASSERT_EQ(2U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
// TODO(deadbeef): This is actually the same active TCP candidate as before.
// We should extend this test to also verify that a server candidate is
// gathered.
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
}
// Verify candidates with default step delay of 1sec.
TEST_F(BasicPortAllocatorTest, TestGetAllPortsWithOneSecondStepDelay) {
AddInterface(kClientAddr);
allocator_->set_step_delay(kDefaultStepDelay);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_EQ_SIMULATED_WAIT(2U, candidates_.size(), 1000, fake_clock);
EXPECT_EQ(2U, ports_.size());
ASSERT_EQ_SIMULATED_WAIT(3U, candidates_.size(), 2000, fake_clock);
EXPECT_EQ(3U, ports_.size());
ASSERT_EQ_SIMULATED_WAIT(3U, candidates_.size(), 1500, fake_clock);
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
EXPECT_EQ(3U, ports_.size());
EXPECT_TRUE(candidate_allocation_done_);
// If we Stop gathering now, we shouldn't get a second "done" callback.
session_->StopGettingPorts();
}
TEST_F(BasicPortAllocatorTest, TestSetupVideoRtpPortsWithNormalSendBuffers) {
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP, CN_VIDEO));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
// If we Stop gathering now, we shouldn't get a second "done" callback.
session_->StopGettingPorts();
// All ports should have unset send-buffer sizes.
CheckSendBufferSizesOfAllPorts(-1);
}
// Tests that we can get callback after StopGetAllPorts when called in the
// middle of gathering.
TEST_F(BasicPortAllocatorTest, TestStopGetAllPorts) {
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_EQ_SIMULATED_WAIT(2U, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(2U, ports_.size());
session_->StopGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
}
// Test that we restrict client ports appropriately when a port range is set.
// We check the candidates for udp/stun/tcp ports, and the from address
// for relay ports.
TEST_F(BasicPortAllocatorTest, TestGetAllPortsPortRange) {
AddInterface(kClientAddr);
// Check that an invalid port range fails.
EXPECT_FALSE(SetPortRange(kMaxPort, kMinPort));
// Check that a null port range succeeds.
EXPECT_TRUE(SetPortRange(0, 0));
// Check that a valid port range succeeds.
EXPECT_TRUE(SetPortRange(kMinPort, kMaxPort));
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
EXPECT_EQ(3U, ports_.size());
int num_nonrelay_candidates = 0;
for (const Candidate& candidate : candidates_) {
// Check the port number for the UDP/STUN/TCP port objects.
if (candidate.type() != RELAY_PORT_TYPE) {
EXPECT_TRUE(CheckPort(candidate.address(), kMinPort, kMaxPort));
++num_nonrelay_candidates;
}
}
EXPECT_EQ(3, num_nonrelay_candidates);
}
// Test that if we have no network adapters, we bind to the ANY address and
// still get non-host candidates.
TEST_F(BasicPortAllocatorTest, TestGetAllPortsNoAdapters) {
// Default config uses GTURN and no NAT, so replace that with the
// desired setup (NAT, STUN server, TURN server, UDP/TCP).
ResetWithStunServerAndNat(kStunAddr);
turn_server_.AddInternalSocket(kTurnTcpIntAddr, PROTO_TCP);
AddTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
AddTurnServers(kTurnUdpIntIPv6Addr, kTurnTcpIntIPv6Addr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(4U, ports_.size());
EXPECT_EQ(1, CountPorts(ports_, "stun", PROTO_UDP, kAnyAddr));
EXPECT_EQ(1, CountPorts(ports_, "local", PROTO_TCP, kAnyAddr));
// Two TURN ports, using UDP/TCP for the first hop to the TURN server.
EXPECT_EQ(1, CountPorts(ports_, "relay", PROTO_UDP, kAnyAddr));
EXPECT_EQ(1, CountPorts(ports_, "relay", PROTO_TCP, kAnyAddr));
// The "any" address port should be in the signaled ready ports, but the host
// candidate for it is useless and shouldn't be signaled. So we only have
// STUN/TURN candidates.
EXPECT_EQ(3U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "stun", "udp",
rtc::SocketAddress(kNatUdpAddr.ipaddr(), 0)));
// Again, two TURN candidates, using UDP/TCP for the first hop to the TURN
// server.
EXPECT_EQ(2,
CountCandidates(candidates_, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0)));
}
// Test that when enumeration is disabled, we should not have any ports when
// candidate_filter() is set to CF_RELAY and no relay is specified.
TEST_F(BasicPortAllocatorTest,
TestDisableAdapterEnumerationWithoutNatRelayTransportOnly) {
ResetWithStunServerNoNat(kStunAddr);
allocator().SetCandidateFilter(CF_RELAY);
// Expect to see no ports and no candidates.
CheckDisableAdapterEnumeration(0U, rtc::IPAddress(), rtc::IPAddress(),
rtc::IPAddress(), rtc::IPAddress());
}
// Test that even with multiple interfaces, the result should still be a single
// default private, one STUN and one TURN candidate since we bind to any address
// (i.e. all 0s).
TEST_F(BasicPortAllocatorTest,
TestDisableAdapterEnumerationBehindNatMultipleInterfaces) {
AddInterface(kPrivateAddr);
AddInterface(kPrivateAddr2);
ResetWithStunServerAndNat(kStunAddr);
AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
// Enable IPv6 here. Since the network_manager doesn't have IPv6 default
// address set and we have no IPv6 STUN server, there should be no IPv6
// candidates.
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->set_flags(PORTALLOCATOR_ENABLE_IPV6);
// Expect to see 3 ports for IPv4: HOST/STUN, TURN/UDP and TCP ports, 2 ports
// for IPv6: HOST, and TCP. Only IPv4 candidates: a default private, STUN and
// TURN/UDP candidates.
CheckDisableAdapterEnumeration(5U, kPrivateAddr.ipaddr(),
kNatUdpAddr.ipaddr(), kTurnUdpExtAddr.ipaddr(),
rtc::IPAddress());
}
// Test that we should get a default private, STUN, TURN/UDP and TURN/TCP
// candidates when both TURN/UDP and TURN/TCP servers are specified.
TEST_F(BasicPortAllocatorTest, TestDisableAdapterEnumerationBehindNatWithTcp) {
turn_server_.AddInternalSocket(kTurnTcpIntAddr, PROTO_TCP);
AddInterface(kPrivateAddr);
ResetWithStunServerAndNat(kStunAddr);
AddTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
// Expect to see 4 ports - STUN, TURN/UDP, TURN/TCP and TCP port. A default
// private, STUN, TURN/UDP, and TURN/TCP candidates.
CheckDisableAdapterEnumeration(4U, kPrivateAddr.ipaddr(),
kNatUdpAddr.ipaddr(), kTurnUdpExtAddr.ipaddr(),
kTurnUdpExtAddr.ipaddr());
}
// Test that when adapter enumeration is disabled, for endpoints without
// STUN/TURN specified, a default private candidate is still generated.
TEST_F(BasicPortAllocatorTest,
TestDisableAdapterEnumerationWithoutNatOrServers) {
ResetWithNoServersOrNat();
// Expect to see 2 ports: STUN and TCP ports, one default private candidate.
CheckDisableAdapterEnumeration(2U, kPrivateAddr.ipaddr(), rtc::IPAddress(),
rtc::IPAddress(), rtc::IPAddress());
}
// Test that when adapter enumeration is disabled, with
// PORTALLOCATOR_DISABLE_LOCALHOST_CANDIDATE specified, for endpoints not behind
// a NAT, there is no local candidate.
TEST_F(BasicPortAllocatorTest,
TestDisableAdapterEnumerationWithoutNatLocalhostCandidateDisabled) {
ResetWithStunServerNoNat(kStunAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->set_flags(PORTALLOCATOR_DISABLE_DEFAULT_LOCAL_CANDIDATE);
// Expect to see 2 ports: STUN and TCP ports, localhost candidate and STUN
// candidate.
CheckDisableAdapterEnumeration(2U, rtc::IPAddress(), rtc::IPAddress(),
rtc::IPAddress(), rtc::IPAddress());
}
// Test that when adapter enumeration is disabled, with
// PORTALLOCATOR_DISABLE_LOCALHOST_CANDIDATE specified, for endpoints not behind
// a NAT, there is no local candidate. However, this specified default route
// (kClientAddr) which was discovered when sending STUN requests, will become
// the srflx addresses.
TEST_F(BasicPortAllocatorTest,
TestDisableAdapterEnumerationWithoutNatLocalhostCandDisabledDiffRoute) {
ResetWithStunServerNoNat(kStunAddr);
AddInterfaceAsDefaultSourceAddresss(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->set_flags(PORTALLOCATOR_DISABLE_DEFAULT_LOCAL_CANDIDATE);
// Expect to see 2 ports: STUN and TCP ports, localhost candidate and STUN
// candidate.
CheckDisableAdapterEnumeration(2U, rtc::IPAddress(), kClientAddr.ipaddr(),
rtc::IPAddress(), rtc::IPAddress());
}
// Test that when adapter enumeration is disabled, with
// PORTALLOCATOR_DISABLE_LOCALHOST_CANDIDATE specified, for endpoints behind a
// NAT, there is only one STUN candidate.
TEST_F(BasicPortAllocatorTest,
TestDisableAdapterEnumerationWithNatLocalhostCandidateDisabled) {
ResetWithStunServerAndNat(kStunAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->set_flags(PORTALLOCATOR_DISABLE_DEFAULT_LOCAL_CANDIDATE);
// Expect to see 2 ports: STUN and TCP ports, and single STUN candidate.
CheckDisableAdapterEnumeration(2U, rtc::IPAddress(), kNatUdpAddr.ipaddr(),
rtc::IPAddress(), rtc::IPAddress());
}
// Test that we disable relay over UDP, and only TCP is used when connecting to
// the relay server.
TEST_F(BasicPortAllocatorTest, TestDisableUdpTurn) {
turn_server_.AddInternalSocket(kTurnTcpIntAddr, PROTO_TCP);
AddInterface(kClientAddr);
ResetWithStunServerAndNat(kStunAddr);
AddTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->set_flags(PORTALLOCATOR_DISABLE_UDP_RELAY |
PORTALLOCATOR_DISABLE_UDP | PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_ENABLE_SHARED_SOCKET);
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Expect to see 2 ports and 2 candidates - TURN/TCP and TCP ports, TCP and
// TURN/TCP candidates.
EXPECT_EQ(2U, ports_.size());
EXPECT_EQ(2U, candidates_.size());
Candidate turn_candidate;
EXPECT_TRUE(FindCandidate(candidates_, "relay", "udp", kTurnUdpExtAddr,
&turn_candidate));
// The TURN candidate should use TCP to contact the TURN server.
EXPECT_EQ(TCP_PROTOCOL_NAME, turn_candidate.relay_protocol());
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
}
// Test that we can get OnCandidatesAllocationDone callback when all the ports
// are disabled.
TEST_F(BasicPortAllocatorTest, TestDisableAllPorts) {
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->set_flags(PORTALLOCATOR_DISABLE_UDP | PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_DISABLE_RELAY | PORTALLOCATOR_DISABLE_TCP);
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_, 1000, fake_clock);
EXPECT_EQ(0U, candidates_.size());
}
// Test that we don't crash or malfunction if we can't create UDP sockets.
TEST_F(BasicPortAllocatorTest, TestGetAllPortsNoUdpSockets) {
AddInterface(kClientAddr);
fss_->set_udp_sockets_enabled(false);
ASSERT_TRUE(CreateSession(1));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(1U, candidates_.size());
EXPECT_EQ(1U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
}
// Test that we don't crash or malfunction if we can't create UDP sockets or
// listen on TCP sockets. We still give out a local TCP address, since
// apparently this is needed for the remote side to accept our connection.
TEST_F(BasicPortAllocatorTest, TestGetAllPortsNoUdpSocketsNoTcpListen) {
AddInterface(kClientAddr);
fss_->set_udp_sockets_enabled(false);
fss_->set_tcp_listen_enabled(false);
ASSERT_TRUE(CreateSession(1));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(1U, candidates_.size());
EXPECT_EQ(1U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
}
// Test that we don't crash or malfunction if we can't create any sockets.
// TODO(deadbeef): Find a way to exit early here.
TEST_F(BasicPortAllocatorTest, TestGetAllPortsNoSockets) {
AddInterface(kClientAddr);
fss_->set_tcp_sockets_enabled(false);
fss_->set_udp_sockets_enabled(false);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
SIMULATED_WAIT(candidates_.size() > 0, 2000, fake_clock);
// TODO(deadbeef): Check candidate_allocation_done signal.
// In case of Relay, ports creation will succeed but sockets will fail.
// There is no error reporting from RelayEntry to handle this failure.
}
// Testing STUN timeout.
TEST_F(BasicPortAllocatorTest, TestGetAllPortsNoUdpAllowed) {
fss_->AddRule(false, rtc::FP_UDP, rtc::FD_ANY, kClientAddr);
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_EQ_SIMULATED_WAIT(2U, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(2U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
// We wait at least for a full STUN timeout, which
// cricket::STUN_TOTAL_TIMEOUT seconds.
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
cricket::STUN_TOTAL_TIMEOUT, fake_clock);
// No additional (STUN) candidates.
EXPECT_EQ(2U, candidates_.size());
}
TEST_F(BasicPortAllocatorTest, TestCandidatePriorityOfMultipleInterfaces) {
AddInterface(kClientAddr);
AddInterface(kClientAddr2);
// Allocating only host UDP ports. This is done purely for testing
// convenience.
allocator().set_flags(PORTALLOCATOR_DISABLE_TCP | PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_DISABLE_RELAY);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
ASSERT_EQ(2U, candidates_.size());
EXPECT_EQ(2U, ports_.size());
// Candidates priorities should be different.
EXPECT_NE(candidates_[0].priority(), candidates_[1].priority());
}
// Test to verify ICE restart process.
TEST_F(BasicPortAllocatorTest, TestGetAllPortsRestarts) {
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
EXPECT_EQ(3U, ports_.size());
// TODO(deadbeef): Extend this to verify ICE restart.
}
// Test that the allocator session uses the candidate filter it's created with,
// rather than the filter of its parent allocator.
// The filter of the allocator should only affect the next gathering phase,
// according to JSEP, which means the *next* allocator session returned.
TEST_F(BasicPortAllocatorTest, TestSessionUsesOwnCandidateFilter) {
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
// Set candidate filter *after* creating the session. Should have no effect.
allocator().SetCandidateFilter(CF_RELAY);
session_->StartGettingPorts();
// 7 candidates and 4 ports is what we would normally get (see the
// TestGetAllPorts* tests).
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
EXPECT_EQ(3U, ports_.size());
}
// Test ICE candidate filter mechanism with options Relay/Host/Reflexive.
// This test also verifies that when the allocator is only allowed to use
// relay (i.e. IceTransportsType is relay), the raddr is an empty
// address with the correct family. This is to prevent any local
// reflective address leakage in the sdp line.
TEST_F(BasicPortAllocatorTest, TestCandidateFilterWithRelayOnly) {
AddInterface(kClientAddr);
// GTURN is not configured here.
ResetWithTurnServersNoNat(kTurnUdpIntAddr, rtc::SocketAddress());
allocator().SetCandidateFilter(CF_RELAY);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0)));
EXPECT_EQ(1U, candidates_.size());
EXPECT_EQ(1U, ports_.size()); // Only Relay port will be in ready state.
EXPECT_EQ(std::string(RELAY_PORT_TYPE), candidates_[0].type());
EXPECT_EQ(
candidates_[0].related_address(),
rtc::EmptySocketAddressWithFamily(candidates_[0].address().family()));
}
TEST_F(BasicPortAllocatorTest, TestCandidateFilterWithHostOnly) {
AddInterface(kClientAddr);
allocator().set_flags(PORTALLOCATOR_ENABLE_SHARED_SOCKET);
allocator().SetCandidateFilter(CF_HOST);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(2U, candidates_.size()); // Host UDP/TCP candidates only.
EXPECT_EQ(2U, ports_.size()); // UDP/TCP ports only.
for (const Candidate& candidate : candidates_) {
EXPECT_EQ(std::string(LOCAL_PORT_TYPE), candidate.type());
}
}
// Host is behind the NAT.
TEST_F(BasicPortAllocatorTest, TestCandidateFilterWithReflexiveOnly) {
AddInterface(kPrivateAddr);
ResetWithStunServerAndNat(kStunAddr);
allocator().set_flags(PORTALLOCATOR_ENABLE_SHARED_SOCKET);
allocator().SetCandidateFilter(CF_REFLEXIVE);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Host is behind NAT, no private address will be exposed. Hence only UDP
// port with STUN candidate will be sent outside.
EXPECT_EQ(1U, candidates_.size()); // Only STUN candidate.
EXPECT_EQ(1U, ports_.size()); // Only UDP port will be in ready state.
EXPECT_EQ(std::string(STUN_PORT_TYPE), candidates_[0].type());
EXPECT_EQ(
candidates_[0].related_address(),
rtc::EmptySocketAddressWithFamily(candidates_[0].address().family()));
}
// Host is not behind the NAT.
TEST_F(BasicPortAllocatorTest, TestCandidateFilterWithReflexiveOnlyAndNoNAT) {
AddInterface(kClientAddr);
allocator().set_flags(PORTALLOCATOR_ENABLE_SHARED_SOCKET);
allocator().SetCandidateFilter(CF_REFLEXIVE);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Host has a public address, both UDP and TCP candidates will be exposed.
EXPECT_EQ(2U, candidates_.size()); // Local UDP + TCP candidate.
EXPECT_EQ(2U, ports_.size()); // UDP and TCP ports will be in ready state.
for (const Candidate& candidate : candidates_) {
EXPECT_EQ(std::string(LOCAL_PORT_TYPE), candidate.type());
}
}
// Test that we get the same ufrag and pwd for all candidates.
TEST_F(BasicPortAllocatorTest, TestEnableSharedUfrag) {
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "stun", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
EXPECT_EQ(3U, ports_.size());
for (const Candidate& candidate : candidates_) {
EXPECT_EQ(kIceUfrag0, candidate.username());
EXPECT_EQ(kIcePwd0, candidate.password());
}
}
// Test that when PORTALLOCATOR_ENABLE_SHARED_SOCKET is enabled only one port
// is allocated for udp and stun. Also verify there is only one candidate
// (local) if stun candidate is same as local candidate, which will be the case
// in a public network like the below test.
TEST_F(BasicPortAllocatorTest, TestSharedSocketWithoutNat) {
AddInterface(kClientAddr);
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_EQ_SIMULATED_WAIT(2U, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(2U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
}
// Test that when PORTALLOCATOR_ENABLE_SHARED_SOCKET is enabled only one port
// is allocated for udp and stun. In this test we should expect both stun and
// local candidates as client behind a nat.
TEST_F(BasicPortAllocatorTest, TestSharedSocketWithNat) {
AddInterface(kClientAddr);
ResetWithStunServerAndNat(kStunAddr);
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_EQ_SIMULATED_WAIT(3U, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
ASSERT_EQ(2U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "stun", "udp",
rtc::SocketAddress(kNatUdpAddr.ipaddr(), 0)));
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
}
// Test TURN port in shared socket mode with UDP and TCP TURN server addresses.
TEST_F(BasicPortAllocatorTest, TestSharedSocketWithoutNatUsingTurn) {
turn_server_.AddInternalSocket(kTurnTcpIntAddr, PROTO_TCP);
AddInterface(kClientAddr);
allocator_.reset(new BasicPortAllocator(
&network_manager_,
std::make_unique<rtc::BasicPacketSocketFactory>(fss_.get())));
allocator_->Initialize();
AddTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
allocator_->set_step_delay(kMinimumStepDelay);
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
ASSERT_EQ(3U, candidates_.size());
ASSERT_EQ(3U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0)));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0)));
}
// Test that if the turn port prune policy is PRUNE_BASED_ON_PRIORITY, TCP TURN
// port will not be used if UDP TurnPort is used, given that TCP TURN port
// becomes ready first.
TEST_F(BasicPortAllocatorTest,
TestUdpTurnPortPrunesTcpTurnPortWithTcpPortReadyFirst) {
// UDP has longer delay than TCP so that TCP TURN port becomes ready first.
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntAddr, 200);
virtual_socket_server()->SetDelayOnAddress(kTurnTcpIntAddr, 100);
TestTurnPortPrunesWithUdpAndTcpPorts(webrtc::PRUNE_BASED_ON_PRIORITY,
true /* tcp_pruned */);
}
// Test that if turn port prune policy is PRUNE_BASED_ON_PRIORITY, TCP TURN port
// will not be used if UDP TurnPort is used, given that UDP TURN port becomes
// ready first.
TEST_F(BasicPortAllocatorTest,
TestUdpTurnPortPrunesTcpTurnPortsWithUdpPortReadyFirst) {
// UDP has shorter delay than TCP so that UDP TURN port becomes ready first.
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntAddr, 100);
virtual_socket_server()->SetDelayOnAddress(kTurnTcpIntAddr, 200);
TestTurnPortPrunesWithUdpAndTcpPorts(webrtc::PRUNE_BASED_ON_PRIORITY,
true /* tcp_pruned */);
}
// Test that if turn_port_prune policy is KEEP_FIRST_READY, the first ready port
// will be kept regardless of the priority.
TEST_F(BasicPortAllocatorTest,
TestUdpTurnPortPrunesTcpTurnPortIfUdpReadyFirst) {
// UDP has shorter delay than TCP so that UDP TURN port becomes ready first.
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntAddr, 100);
virtual_socket_server()->SetDelayOnAddress(kTurnTcpIntAddr, 200);
TestTurnPortPrunesWithUdpAndTcpPorts(webrtc::KEEP_FIRST_READY,
true /* tcp_pruned */);
}
// Test that if turn_port_prune policy is KEEP_FIRST_READY, the first ready port
// will be kept regardless of the priority.
TEST_F(BasicPortAllocatorTest,
TestTcpTurnPortPrunesUdpTurnPortIfTcpReadyFirst) {
// UDP has longer delay than TCP so that TCP TURN port becomes ready first.
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntAddr, 200);
virtual_socket_server()->SetDelayOnAddress(kTurnTcpIntAddr, 100);
TestTurnPortPrunesWithUdpAndTcpPorts(webrtc::KEEP_FIRST_READY,
false /* tcp_pruned */);
}
// Tests that if turn port prune policy is PRUNE_BASED_ON_PRIORITY, IPv4
// TurnPort will not be used if IPv6 TurnPort is used, given that IPv4 TURN port
// becomes ready first.
TEST_F(BasicPortAllocatorTest,
TestIPv6TurnPortPrunesIPv4TurnPortWithIPv4PortReadyFirst) {
// IPv6 has longer delay than IPv4, so that IPv4 TURN port becomes ready
// first.
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntAddr, 100);
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntIPv6Addr, 200);
TestIPv6TurnPortPrunesIPv4TurnPort();
}
// Tests that if turn port prune policy is PRUNE_BASED_ON_PRIORITY, IPv4
// TurnPort will not be used if IPv6 TurnPort is used, given that IPv6 TURN port
// becomes ready first.
TEST_F(BasicPortAllocatorTest,
TestIPv6TurnPortPrunesIPv4TurnPortWithIPv6PortReadyFirst) {
// IPv6 has longer delay than IPv4, so that IPv6 TURN port becomes ready
// first.
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntAddr, 200);
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntIPv6Addr, 100);
TestIPv6TurnPortPrunesIPv4TurnPort();
}
// Tests that if turn port prune policy is PRUNE_BASED_ON_PRIORITY, each network
// interface will has its own set of TurnPorts based on their priorities, in the
// default case where no transit delay is set.
TEST_F(BasicPortAllocatorTest, TestEachInterfaceHasItsOwnTurnPortsNoDelay) {
TestEachInterfaceHasItsOwnTurnPorts();
}
// Tests that if turn port prune policy is PRUNE_BASED_ON_PRIORITY, each network
// interface will has its own set of TurnPorts based on their priorities, given
// that IPv4/TCP TURN port becomes ready first.
TEST_F(BasicPortAllocatorTest,
TestEachInterfaceHasItsOwnTurnPortsWithTcpIPv4ReadyFirst) {
// IPv6/UDP have longer delay than IPv4/TCP, so that IPv4/TCP TURN port
// becomes ready last.
virtual_socket_server()->SetDelayOnAddress(kTurnTcpIntAddr, 10);
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntAddr, 100);
virtual_socket_server()->SetDelayOnAddress(kTurnTcpIntIPv6Addr, 20);
virtual_socket_server()->SetDelayOnAddress(kTurnUdpIntIPv6Addr, 300);
TestEachInterfaceHasItsOwnTurnPorts();
}
// Testing DNS resolve for the TURN server, this will test AllocationSequence
// handling the unresolved address signal from TurnPort.
// TODO(pthatcher): Make this test work with SIMULATED_WAIT. It
// appears that it doesn't currently because of the DNS look up not
// using the fake clock.
TEST_F(BasicPortAllocatorTestWithRealClock,
TestSharedSocketWithServerAddressResolve) {
// This test relies on a real query for "localhost", so it won't work on an
// IPv6-only machine.
MAYBE_SKIP_IPV4;
turn_server_.AddInternalSocket(rtc::SocketAddress("127.0.0.1", 3478),
PROTO_UDP);
AddInterface(kClientAddr);
allocator_.reset(new BasicPortAllocator(
&network_manager_,
std::make_unique<rtc::BasicPacketSocketFactory>(fss_.get())));
allocator_->Initialize();
RelayServerConfig turn_server;
RelayCredentials credentials(kTurnUsername, kTurnPassword);
turn_server.credentials = credentials;
turn_server.ports.push_back(
ProtocolAddress(rtc::SocketAddress("localhost", 3478), PROTO_UDP));
allocator_->AddTurnServerForTesting(turn_server);
allocator_->set_step_delay(kMinimumStepDelay);
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_EQ_WAIT(2U, ports_.size(), kDefaultAllocationTimeout);
}
// Test that when PORTALLOCATOR_ENABLE_SHARED_SOCKET is enabled only one port
// is allocated for udp/stun/turn. In this test we should expect all local,
// stun and turn candidates.
TEST_F(BasicPortAllocatorTest, TestSharedSocketWithNatUsingTurn) {
AddInterface(kClientAddr);
ResetWithStunServerAndNat(kStunAddr);
AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
ASSERT_EQ(2U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "stun", "udp",
rtc::SocketAddress(kNatUdpAddr.ipaddr(), 0)));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0)));
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
// Local port will be created first and then TURN port.
// TODO(deadbeef): This isn't something the BasicPortAllocator API contract
// guarantees...
EXPECT_EQ(2U, ports_[0]->Candidates().size());
EXPECT_EQ(1U, ports_[1]->Candidates().size());
}
// Test that when PORTALLOCATOR_ENABLE_SHARED_SOCKET is enabled and the TURN
// server is also used as the STUN server, we should get 'local', 'stun', and
// 'relay' candidates.
TEST_F(BasicPortAllocatorTest, TestSharedSocketWithNatUsingTurnAsStun) {
AddInterface(kClientAddr);
// Use an empty SocketAddress to add a NAT without STUN server.
ResetWithStunServerAndNat(SocketAddress());
AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
// Must set the step delay to 0 to make sure the relay allocation phase is
// started before the STUN candidates are obtained, so that the STUN binding
// response is processed when both StunPort and TurnPort exist to reproduce
// webrtc issue 3537.
allocator_->set_step_delay(0);
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
Candidate stun_candidate;
EXPECT_TRUE(FindCandidate(candidates_, "stun", "udp",
rtc::SocketAddress(kNatUdpAddr.ipaddr(), 0),
&stun_candidate));
EXPECT_TRUE(HasCandidateWithRelatedAddr(
candidates_, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0),
stun_candidate.address()));
// Local port will be created first and then TURN port.
// TODO(deadbeef): This isn't something the BasicPortAllocator API contract
// guarantees...
EXPECT_EQ(2U, ports_[0]->Candidates().size());
EXPECT_EQ(1U, ports_[1]->Candidates().size());
}
// Test that when only a TCP TURN server is available, we do NOT use it as
// a UDP STUN server, as this could leak our IP address. Thus we should only
// expect two ports, a UDPPort and TurnPort.
TEST_F(BasicPortAllocatorTest, TestSharedSocketWithNatUsingTurnTcpOnly) {
turn_server_.AddInternalSocket(kTurnTcpIntAddr, PROTO_TCP);
AddInterface(kClientAddr);
ResetWithStunServerAndNat(rtc::SocketAddress());
AddTurnServers(rtc::SocketAddress(), kTurnTcpIntAddr);
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(2U, candidates_.size());
ASSERT_EQ(2U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0)));
EXPECT_EQ(1U, ports_[0]->Candidates().size());
EXPECT_EQ(1U, ports_[1]->Candidates().size());
}
// Test that even when PORTALLOCATOR_ENABLE_SHARED_SOCKET is NOT enabled, the
// TURN server is used as the STUN server and we get 'local', 'stun', and
// 'relay' candidates.
// TODO(deadbeef): Remove this test when support for non-shared socket mode
// is removed.
TEST_F(BasicPortAllocatorTest, TestNonSharedSocketWithNatUsingTurnAsStun) {
AddInterface(kClientAddr);
// Use an empty SocketAddress to add a NAT without STUN server.
ResetWithStunServerAndNat(SocketAddress());
AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
allocator_->set_flags(allocator().flags() | PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
ASSERT_EQ(3U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
Candidate stun_candidate;
EXPECT_TRUE(FindCandidate(candidates_, "stun", "udp",
rtc::SocketAddress(kNatUdpAddr.ipaddr(), 0),
&stun_candidate));
Candidate turn_candidate;
EXPECT_TRUE(FindCandidate(candidates_, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0),
&turn_candidate));
// Not using shared socket, so the STUN request's server reflexive address
// should be different than the TURN request's server reflexive address.
EXPECT_NE(turn_candidate.related_address(), stun_candidate.address());
EXPECT_EQ(1U, ports_[0]->Candidates().size());
EXPECT_EQ(1U, ports_[1]->Candidates().size());
EXPECT_EQ(1U, ports_[2]->Candidates().size());
}
// Test that even when both a STUN and TURN server are configured, the TURN
// server is used as a STUN server and we get a 'stun' candidate.
TEST_F(BasicPortAllocatorTest, TestSharedSocketWithNatUsingTurnAndStun) {
AddInterface(kClientAddr);
// Configure with STUN server but destroy it, so we can ensure that it's
// the TURN server actually being used as a STUN server.
ResetWithStunServerAndNat(kStunAddr);
stun_server_.reset();
AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_EQ_SIMULATED_WAIT(3U, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
Candidate stun_candidate;
EXPECT_TRUE(FindCandidate(candidates_, "stun", "udp",
rtc::SocketAddress(kNatUdpAddr.ipaddr(), 0),
&stun_candidate));
EXPECT_TRUE(HasCandidateWithRelatedAddr(
candidates_, "relay", "udp",
rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0),
stun_candidate.address()));
// Don't bother waiting for STUN timeout, since we already verified
// that we got a STUN candidate from the TURN server.
}
// This test verifies when PORTALLOCATOR_ENABLE_SHARED_SOCKET flag is enabled
// and fail to generate STUN candidate, local UDP candidate is generated
// properly.
TEST_F(BasicPortAllocatorTest, TestSharedSocketNoUdpAllowed) {
allocator().set_flags(allocator().flags() | PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_DISABLE_TCP |
PORTALLOCATOR_ENABLE_SHARED_SOCKET);
fss_->AddRule(false, rtc::FP_UDP, rtc::FD_ANY, kClientAddr);
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_EQ_SIMULATED_WAIT(1U, ports_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(1U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
// STUN timeout is 9.5sec. We need to wait to get candidate done signal.
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_, kStunTimeoutMs,
fake_clock);
EXPECT_EQ(1U, candidates_.size());
}
// Test that when the NetworkManager doesn't have permission to enumerate
// adapters, the PORTALLOCATOR_DISABLE_ADAPTER_ENUMERATION is specified
// automatically.
TEST_F(BasicPortAllocatorTest, TestNetworkPermissionBlocked) {
network_manager_.set_default_local_addresses(kPrivateAddr.ipaddr(),
rtc::IPAddress());
network_manager_.set_enumeration_permission(
rtc::NetworkManager::ENUMERATION_BLOCKED);
allocator().set_flags(allocator().flags() | PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_DISABLE_TCP |
PORTALLOCATOR_ENABLE_SHARED_SOCKET);
EXPECT_EQ(0U,
allocator_->flags() & PORTALLOCATOR_DISABLE_ADAPTER_ENUMERATION);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
EXPECT_EQ(0U, session_->flags() & PORTALLOCATOR_DISABLE_ADAPTER_ENUMERATION);
session_->StartGettingPorts();
EXPECT_EQ_SIMULATED_WAIT(1U, ports_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(1U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kPrivateAddr));
EXPECT_NE(0U, session_->flags() & PORTALLOCATOR_DISABLE_ADAPTER_ENUMERATION);
}
// This test verifies allocator can use IPv6 addresses along with IPv4.
TEST_F(BasicPortAllocatorTest, TestEnableIPv6Addresses) {
allocator().set_flags(allocator().flags() | PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_ENABLE_IPV6 |
PORTALLOCATOR_ENABLE_SHARED_SOCKET);
AddInterface(kClientIPv6Addr);
AddInterface(kClientAddr);
allocator_->set_step_delay(kMinimumStepDelay);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(4U, ports_.size());
EXPECT_EQ(4U, candidates_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientIPv6Addr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
}
TEST_F(BasicPortAllocatorTest, TestStopGettingPorts) {
AddInterface(kClientAddr);
allocator_->set_step_delay(kDefaultStepDelay);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_EQ_SIMULATED_WAIT(2U, candidates_.size(), 1000, fake_clock);
EXPECT_EQ(2U, ports_.size());
session_->StopGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_, 1000, fake_clock);
// After stopping getting ports, adding a new interface will not start
// getting ports again.
allocator_->set_step_delay(kMinimumStepDelay);
candidates_.clear();
ports_.clear();
candidate_allocation_done_ = false;
network_manager_.AddInterface(kClientAddr2);
SIMULATED_WAIT(false, 1000, fake_clock);
EXPECT_EQ(0U, candidates_.size());
EXPECT_EQ(0U, ports_.size());
}
TEST_F(BasicPortAllocatorTest, TestClearGettingPorts) {
AddInterface(kClientAddr);
allocator_->set_step_delay(kDefaultStepDelay);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_EQ_SIMULATED_WAIT(2U, candidates_.size(), 1000, fake_clock);
EXPECT_EQ(2U, ports_.size());
session_->ClearGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_, 1000, fake_clock);
// After clearing getting ports, adding a new interface will start getting
// ports again.
allocator_->set_step_delay(kMinimumStepDelay);
candidates_.clear();
ports_.clear();
candidate_allocation_done_ = false;
network_manager_.AddInterface(kClientAddr2);
ASSERT_EQ_SIMULATED_WAIT(2U, candidates_.size(), 1000, fake_clock);
EXPECT_EQ(2U, ports_.size());
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
}
// Test that the ports and candidates are updated with new ufrag/pwd/etc. when
// a pooled session is taken out of the pool.
TEST_F(BasicPortAllocatorTest, TestTransportInformationUpdated) {
AddInterface(kClientAddr);
int pool_size = 1;
allocator_->SetConfiguration(allocator_->stun_servers(),
allocator_->turn_servers(), pool_size,
webrtc::NO_PRUNE);
const PortAllocatorSession* peeked_session = allocator_->GetPooledSession();
ASSERT_NE(nullptr, peeked_session);
EXPECT_EQ_SIMULATED_WAIT(true, peeked_session->CandidatesAllocationDone(),
kDefaultAllocationTimeout, fake_clock);
// Expect that when TakePooledSession is called,
// UpdateTransportInformationInternal will be called and the
// BasicPortAllocatorSession will update the ufrag/pwd of ports and
// candidates.
session_ =
allocator_->TakePooledSession(kContentName, 1, kIceUfrag0, kIcePwd0);
ASSERT_NE(nullptr, session_.get());
auto ready_ports = session_->ReadyPorts();
auto candidates = session_->ReadyCandidates();
EXPECT_FALSE(ready_ports.empty());
EXPECT_FALSE(candidates.empty());
for (const PortInterface* port_interface : ready_ports) {
const Port* port = static_cast<const Port*>(port_interface);
EXPECT_EQ(kContentName, port->content_name());
EXPECT_EQ(1, port->component());
EXPECT_EQ(kIceUfrag0, port->username_fragment());
EXPECT_EQ(kIcePwd0, port->password());
}
for (const Candidate& candidate : candidates) {
EXPECT_EQ(1, candidate.component());
EXPECT_EQ(kIceUfrag0, candidate.username());
EXPECT_EQ(kIcePwd0, candidate.password());
}
}
// Test that a new candidate filter takes effect even on already-gathered
// candidates.
TEST_F(BasicPortAllocatorTest, TestSetCandidateFilterAfterCandidatesGathered) {
AddInterface(kClientAddr);
int pool_size = 1;
allocator_->SetConfiguration(allocator_->stun_servers(),
allocator_->turn_servers(), pool_size,
webrtc::NO_PRUNE);
const PortAllocatorSession* peeked_session = allocator_->GetPooledSession();
ASSERT_NE(nullptr, peeked_session);
EXPECT_EQ_SIMULATED_WAIT(true, peeked_session->CandidatesAllocationDone(),
kDefaultAllocationTimeout, fake_clock);
size_t initial_candidates_size = peeked_session->ReadyCandidates().size();
size_t initial_ports_size = peeked_session->ReadyPorts().size();
allocator_->SetCandidateFilter(CF_RELAY);
// Assume that when TakePooledSession is called, the candidate filter will be
// applied to the pooled session. This is tested by PortAllocatorTest.
session_ =
allocator_->TakePooledSession(kContentName, 1, kIceUfrag0, kIcePwd0);
ASSERT_NE(nullptr, session_.get());
auto candidates = session_->ReadyCandidates();
auto ports = session_->ReadyPorts();
// Sanity check that the number of candidates and ports decreased.
EXPECT_GT(initial_candidates_size, candidates.size());
EXPECT_GT(initial_ports_size, ports.size());
for (const PortInterface* port : ports) {
// Expect only relay ports.
EXPECT_EQ(RELAY_PORT_TYPE, port->Type());
}
for (const Candidate& candidate : candidates) {
// Expect only relay candidates now that the filter is applied.
EXPECT_EQ(std::string(RELAY_PORT_TYPE), candidate.type());
// Expect that the raddr is emptied due to the CF_RELAY filter.
EXPECT_EQ(candidate.related_address(),
rtc::EmptySocketAddressWithFamily(candidate.address().family()));
}
}
// Test that candidates that do not match a previous candidate filter can be
// surfaced if they match the new one after setting the filter value.
TEST_F(BasicPortAllocatorTest,
SurfaceNewCandidatesAfterSetCandidateFilterToAddCandidateTypes) {
// We would still surface a host candidate if the IP is public, even though it
// is disabled by the candidate filter. See
// BasicPortAllocatorSession::CheckCandidateFilter. Use the private address so
// that the srflx candidate is not equivalent to the host candidate.
AddInterface(kPrivateAddr);
ResetWithStunServerAndNat(kStunAddr);
AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
allocator_->SetCandidateFilter(CF_NONE);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_TRUE(candidates_.empty());
EXPECT_TRUE(ports_.empty());
// Surface the relay candidate previously gathered but not signaled.
session_->SetCandidateFilter(CF_RELAY);
ASSERT_EQ_SIMULATED_WAIT(1u, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(RELAY_PORT_TYPE, candidates_.back().type());
EXPECT_EQ(1u, ports_.size());
// Surface the srflx candidate previously gathered but not signaled.
session_->SetCandidateFilter(CF_RELAY | CF_REFLEXIVE);
ASSERT_EQ_SIMULATED_WAIT(2u, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(STUN_PORT_TYPE, candidates_.back().type());
EXPECT_EQ(2u, ports_.size());
// Surface the srflx candidate previously gathered but not signaled.
session_->SetCandidateFilter(CF_ALL);
ASSERT_EQ_SIMULATED_WAIT(3u, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(LOCAL_PORT_TYPE, candidates_.back().type());
EXPECT_EQ(2u, ports_.size());
}
// This is a similar test as
// SurfaceNewCandidatesAfterSetCandidateFilterToAddCandidateTypes, and we
// test the transitions for which the new filter value is not a super set of the
// previous value.
TEST_F(
BasicPortAllocatorTest,
SurfaceNewCandidatesAfterSetCandidateFilterToAllowDifferentCandidateTypes) {
// We would still surface a host candidate if the IP is public, even though it
// is disabled by the candidate filter. See
// BasicPortAllocatorSession::CheckCandidateFilter. Use the private address so
// that the srflx candidate is not equivalent to the host candidate.
AddInterface(kPrivateAddr);
ResetWithStunServerAndNat(kStunAddr);
AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
allocator_->SetCandidateFilter(CF_NONE);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_TRUE(candidates_.empty());
EXPECT_TRUE(ports_.empty());
// Surface the relay candidate previously gathered but not signaled.
session_->SetCandidateFilter(CF_RELAY);
EXPECT_EQ_SIMULATED_WAIT(1u, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(RELAY_PORT_TYPE, candidates_.back().type());
EXPECT_EQ(1u, ports_.size());
// Surface the srflx candidate previously gathered but not signaled.
session_->SetCandidateFilter(CF_REFLEXIVE);
EXPECT_EQ_SIMULATED_WAIT(2u, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(STUN_PORT_TYPE, candidates_.back().type());
EXPECT_EQ(2u, ports_.size());
// Surface the host candidate previously gathered but not signaled.
session_->SetCandidateFilter(CF_HOST);
EXPECT_EQ_SIMULATED_WAIT(3u, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(LOCAL_PORT_TYPE, candidates_.back().type());
// We use a shared socket and cricket::UDPPort handles the srflx candidate.
EXPECT_EQ(2u, ports_.size());
}
// Test that after an allocation session has stopped getting ports, changing the
// candidate filter to allow new types of gathered candidates does not surface
// any candidate.
TEST_F(BasicPortAllocatorTest,
NoCandidateSurfacedWhenUpdatingCandidateFilterIfSessionStopped) {
AddInterface(kPrivateAddr);
ResetWithStunServerAndNat(kStunAddr);
AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET |
PORTALLOCATOR_DISABLE_TCP);
allocator_->SetCandidateFilter(CF_NONE);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
auto test_invariants = [this]() {
EXPECT_TRUE(candidates_.empty());
EXPECT_TRUE(ports_.empty());
};
test_invariants();
session_->StopGettingPorts();
session_->SetCandidateFilter(CF_RELAY);
SIMULATED_WAIT(false, kDefaultAllocationTimeout, fake_clock);
test_invariants();
session_->SetCandidateFilter(CF_RELAY | CF_REFLEXIVE);
SIMULATED_WAIT(false, kDefaultAllocationTimeout, fake_clock);
test_invariants();
session_->SetCandidateFilter(CF_ALL);
SIMULATED_WAIT(false, kDefaultAllocationTimeout, fake_clock);
test_invariants();
}
TEST_F(BasicPortAllocatorTest, SetStunKeepaliveIntervalForPorts) {
const int pool_size = 1;
const int expected_stun_keepalive_interval = 123;
AddInterface(kClientAddr);
allocator_->SetConfiguration(
allocator_->stun_servers(), allocator_->turn_servers(), pool_size,
webrtc::NO_PRUNE, nullptr, expected_stun_keepalive_interval);
auto* pooled_session = allocator_->GetPooledSession();
ASSERT_NE(nullptr, pooled_session);
EXPECT_EQ_SIMULATED_WAIT(true, pooled_session->CandidatesAllocationDone(),
kDefaultAllocationTimeout, fake_clock);
CheckStunKeepaliveIntervalOfAllReadyPorts(pooled_session,
expected_stun_keepalive_interval);
}
TEST_F(BasicPortAllocatorTest,
ChangeStunKeepaliveIntervalForPortsAfterInitialConfig) {
const int pool_size = 1;
AddInterface(kClientAddr);
allocator_->SetConfiguration(
allocator_->stun_servers(), allocator_->turn_servers(), pool_size,
webrtc::NO_PRUNE, nullptr, 123 /* stun keepalive interval */);
auto* pooled_session = allocator_->GetPooledSession();
ASSERT_NE(nullptr, pooled_session);
EXPECT_EQ_SIMULATED_WAIT(true, pooled_session->CandidatesAllocationDone(),
kDefaultAllocationTimeout, fake_clock);
const int expected_stun_keepalive_interval = 321;
allocator_->SetConfiguration(
allocator_->stun_servers(), allocator_->turn_servers(), pool_size,
webrtc::NO_PRUNE, nullptr, expected_stun_keepalive_interval);
CheckStunKeepaliveIntervalOfAllReadyPorts(pooled_session,
expected_stun_keepalive_interval);
}
TEST_F(BasicPortAllocatorTest,
SetStunKeepaliveIntervalForPortsWithSharedSocket) {
const int pool_size = 1;
const int expected_stun_keepalive_interval = 123;
AddInterface(kClientAddr);
allocator_->set_flags(allocator().flags() |
PORTALLOCATOR_ENABLE_SHARED_SOCKET);
allocator_->SetConfiguration(
allocator_->stun_servers(), allocator_->turn_servers(), pool_size,
webrtc::NO_PRUNE, nullptr, expected_stun_keepalive_interval);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
CheckStunKeepaliveIntervalOfAllReadyPorts(session_.get(),
expected_stun_keepalive_interval);
}
TEST_F(BasicPortAllocatorTest,
SetStunKeepaliveIntervalForPortsWithoutSharedSocket) {
const int pool_size = 1;
const int expected_stun_keepalive_interval = 123;
AddInterface(kClientAddr);
allocator_->set_flags(allocator().flags() &
~(PORTALLOCATOR_ENABLE_SHARED_SOCKET));
allocator_->SetConfiguration(
allocator_->stun_servers(), allocator_->turn_servers(), pool_size,
webrtc::NO_PRUNE, nullptr, expected_stun_keepalive_interval);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
CheckStunKeepaliveIntervalOfAllReadyPorts(session_.get(),
expected_stun_keepalive_interval);
}
TEST_F(BasicPortAllocatorTest, IceRegatheringMetricsLoggedWhenNetworkChanges) {
// Only test local ports to simplify test.
ResetWithNoServersOrNat();
AddInterface(kClientAddr, "test_net0");
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
candidate_allocation_done_ = false;
AddInterface(kClientAddr2, "test_net1");
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_METRIC_EQ(1,
webrtc::metrics::NumEvents(
"WebRTC.PeerConnection.IceRegatheringReason",
static_cast<int>(IceRegatheringReason::NETWORK_CHANGE)));
}
// Test that when an mDNS responder is present, the local address of a host
// candidate is concealed by an mDNS hostname and the related address of a srflx
// candidate is set to 0.0.0.0 or ::0.
TEST_F(BasicPortAllocatorTest, HostCandidateAddressIsReplacedByHostname) {
// Default config uses GTURN and no NAT, so replace that with the
// desired setup (NAT, STUN server, TURN server, UDP/TCP).
ResetWithStunServerAndNat(kStunAddr);
turn_server_.AddInternalSocket(kTurnTcpIntAddr, PROTO_TCP);
AddTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
AddTurnServers(kTurnUdpIntIPv6Addr, kTurnTcpIntIPv6Addr);
ASSERT_EQ(&network_manager_, allocator().network_manager());
network_manager_.set_mdns_responder(
std::make_unique<webrtc::FakeMdnsResponder>(rtc::Thread::Current()));
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(5u, candidates_.size());
int num_host_udp_candidates = 0;
int num_host_tcp_candidates = 0;
int num_srflx_candidates = 0;
int num_relay_candidates = 0;
for (const auto& candidate : candidates_) {
const auto& raddr = candidate.related_address();
if (candidate.type() == LOCAL_PORT_TYPE) {
EXPECT_FALSE(candidate.address().hostname().empty());
EXPECT_TRUE(raddr.IsNil());
if (candidate.protocol() == UDP_PROTOCOL_NAME) {
++num_host_udp_candidates;
} else {
++num_host_tcp_candidates;
}
} else if (candidate.type() == STUN_PORT_TYPE) {
// For a srflx candidate, the related address should be set to 0.0.0.0 or
// ::0
EXPECT_TRUE(IPIsAny(raddr.ipaddr()));
EXPECT_EQ(raddr.port(), 0);
++num_srflx_candidates;
} else if (candidate.type() == RELAY_PORT_TYPE) {
EXPECT_EQ(kNatUdpAddr.ipaddr(), raddr.ipaddr());
EXPECT_EQ(kNatUdpAddr.family(), raddr.family());
++num_relay_candidates;
} else {
// prflx candidates are not expected
FAIL();
}
}
EXPECT_EQ(1, num_host_udp_candidates);
EXPECT_EQ(1, num_host_tcp_candidates);
EXPECT_EQ(1, num_srflx_candidates);
EXPECT_EQ(2, num_relay_candidates);
}
TEST_F(BasicPortAllocatorTest, TestUseTurnServerAsStunSever) {
ServerAddresses stun_servers;
stun_servers.insert(kStunAddr);
PortConfiguration port_config(stun_servers, "", "");
RelayServerConfig turn_servers =
CreateTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
port_config.AddRelay(turn_servers);
EXPECT_EQ(2U, port_config.StunServers().size());
}
TEST_F(BasicPortAllocatorTest, TestDoNotUseTurnServerAsStunSever) {
webrtc::test::ScopedKeyValueConfig field_trials(
"WebRTC-UseTurnServerAsStunServer/Disabled/");
ServerAddresses stun_servers;
stun_servers.insert(kStunAddr);
PortConfiguration port_config(stun_servers, "" /* user_name */,
"" /* password */, &field_trials);
RelayServerConfig turn_servers =
CreateTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
port_config.AddRelay(turn_servers);
EXPECT_EQ(1U, port_config.StunServers().size());
}
// Test that candidates from different servers get assigned a unique local
// preference (the middle 16 bits of the priority)
TEST_F(BasicPortAllocatorTest, AssignsUniqueLocalPreferencetoRelayCandidates) {
allocator_->SetCandidateFilter(CF_RELAY);
allocator_->AddTurnServerForTesting(
CreateTurnServers(kTurnUdpIntAddr, SocketAddress()));
allocator_->AddTurnServerForTesting(
CreateTurnServers(kTurnUdpIntAddr, SocketAddress()));
allocator_->AddTurnServerForTesting(
CreateTurnServers(kTurnUdpIntAddr, SocketAddress()));
AddInterface(kClientAddr);
ASSERT_TRUE(CreateSession(ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
ASSERT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3u, candidates_.size());
EXPECT_GT((candidates_[0].priority() >> 8) & 0xFFFF,
(candidates_[1].priority() >> 8) & 0xFFFF);
EXPECT_GT((candidates_[1].priority() >> 8) & 0xFFFF,
(candidates_[2].priority() >> 8) & 0xFFFF);
}
// Test that no more than allocator.max_ipv6_networks() IPv6 networks are used
// to gather candidates.
TEST_F(BasicPortAllocatorTest, TwoIPv6AreSelectedBecauseOfMaxIpv6Limit) {
rtc::Network wifi1("wifi1", "Test NetworkAdapter 1", kClientIPv6Addr.ipaddr(),
64, rtc::ADAPTER_TYPE_WIFI);
rtc::Network ethe1("ethe1", "Test NetworkAdapter 2",
kClientIPv6Addr2.ipaddr(), 64, rtc::ADAPTER_TYPE_ETHERNET);
rtc::Network wifi2("wifi2", "Test NetworkAdapter 3",
kClientIPv6Addr3.ipaddr(), 64, rtc::ADAPTER_TYPE_WIFI);
std::vector<const rtc::Network*> networks = {&wifi1, &ethe1, &wifi2};
// Ensure that only 2 interfaces were selected.
EXPECT_EQ(2U, BasicPortAllocatorSession::SelectIPv6Networks(
networks, /*max_ipv6_networks=*/2)
.size());
}
// Test that if the number of available IPv6 networks is less than
// allocator.max_ipv6_networks(), all IPv6 networks will be selected.
TEST_F(BasicPortAllocatorTest, AllIPv6AreSelected) {
rtc::Network wifi1("wifi1", "Test NetworkAdapter 1", kClientIPv6Addr.ipaddr(),
64, rtc::ADAPTER_TYPE_WIFI);
rtc::Network ethe1("ethe1", "Test NetworkAdapter 2",
kClientIPv6Addr2.ipaddr(), 64, rtc::ADAPTER_TYPE_ETHERNET);
std::vector<const rtc::Network*> networks = {&wifi1, &ethe1};
// Ensure that all 2 interfaces were selected.
EXPECT_EQ(2U, BasicPortAllocatorSession::SelectIPv6Networks(
networks, /*max_ipv6_networks=*/3)
.size());
}
// If there are some IPv6 networks with different types, diversify IPv6
// networks.
TEST_F(BasicPortAllocatorTest, TwoIPv6WifiAreSelectedIfThereAreTwo) {
rtc::Network wifi1("wifi1", "Test NetworkAdapter 1", kClientIPv6Addr.ipaddr(),
64, rtc::ADAPTER_TYPE_WIFI);
rtc::Network ethe1("ethe1", "Test NetworkAdapter 2",
kClientIPv6Addr2.ipaddr(), 64, rtc::ADAPTER_TYPE_ETHERNET);
rtc::Network ethe2("ethe2", "Test NetworkAdapter 3",
kClientIPv6Addr3.ipaddr(), 64, rtc::ADAPTER_TYPE_ETHERNET);
rtc::Network unknown1("unknown1", "Test NetworkAdapter 4",
kClientIPv6Addr2.ipaddr(), 64,
rtc::ADAPTER_TYPE_UNKNOWN);
rtc::Network cell1("cell1", "Test NetworkAdapter 5",
kClientIPv6Addr3.ipaddr(), 64,
rtc::ADAPTER_TYPE_CELLULAR_4G);
std::vector<const rtc::Network*> networks = {&wifi1, &ethe1, &ethe2,
&unknown1, &cell1};
networks = BasicPortAllocatorSession::SelectIPv6Networks(
networks, /*max_ipv6_networks=*/4);
EXPECT_EQ(4U, networks.size());
// Ensure the expected 4 interfaces (wifi1, ethe1, cell1, unknown1) were
// selected.
EXPECT_TRUE(HasNetwork(networks, wifi1));
EXPECT_TRUE(HasNetwork(networks, ethe1));
EXPECT_TRUE(HasNetwork(networks, cell1));
EXPECT_TRUE(HasNetwork(networks, unknown1));
}
// If there are some IPv6 networks with the same type, select them because there
// is no other option.
TEST_F(BasicPortAllocatorTest, IPv6WithSameTypeAreSelectedIfNoOtherOption) {
// Add 5 cellular interfaces
rtc::Network cell1("cell1", "Test NetworkAdapter 1", kClientIPv6Addr.ipaddr(),
64, rtc::ADAPTER_TYPE_CELLULAR_2G);
rtc::Network cell2("cell2", "Test NetworkAdapter 2",
kClientIPv6Addr2.ipaddr(), 64,
rtc::ADAPTER_TYPE_CELLULAR_3G);
rtc::Network cell3("cell3", "Test NetworkAdapter 3",
kClientIPv6Addr3.ipaddr(), 64,
rtc::ADAPTER_TYPE_CELLULAR_4G);
rtc::Network cell4("cell4", "Test NetworkAdapter 4",
kClientIPv6Addr2.ipaddr(), 64,
rtc::ADAPTER_TYPE_CELLULAR_5G);
rtc::Network cell5("cell5", "Test NetworkAdapter 5",
kClientIPv6Addr3.ipaddr(), 64,
rtc::ADAPTER_TYPE_CELLULAR_3G);
std::vector<const rtc::Network*> networks = {&cell1, &cell2, &cell3, &cell4,
&cell5};
// Ensure that 4 interfaces were selected.
EXPECT_EQ(4U, BasicPortAllocatorSession::SelectIPv6Networks(
networks, /*max_ipv6_networks=*/4)
.size());
}
TEST_F(BasicPortAllocatorTest, IPv6EthernetHasHigherPriorityThanWifi) {
rtc::Network wifi1("wifi1", "Test NetworkAdapter 1", kClientIPv6Addr.ipaddr(),
64, rtc::ADAPTER_TYPE_WIFI);
rtc::Network ethe1("ethe1", "Test NetworkAdapter 2",
kClientIPv6Addr2.ipaddr(), 64, rtc::ADAPTER_TYPE_ETHERNET);
rtc::Network wifi2("wifi2", "Test NetworkAdapter 3",
kClientIPv6Addr3.ipaddr(), 64, rtc::ADAPTER_TYPE_WIFI);
std::vector<const rtc::Network*> networks = {&wifi1, &ethe1, &wifi2};
networks = BasicPortAllocatorSession::SelectIPv6Networks(
networks, /*max_ipv6_networks=*/1);
EXPECT_EQ(1U, networks.size());
// Ensure ethe1 was selected.
EXPECT_TRUE(HasNetwork(networks, ethe1));
}
TEST_F(BasicPortAllocatorTest, IPv6EtherAndWifiHaveHigherPriorityThanOthers) {
rtc::Network cell1("cell1", "Test NetworkAdapter 1", kClientIPv6Addr.ipaddr(),
64, rtc::ADAPTER_TYPE_CELLULAR_3G);
rtc::Network ethe1("ethe1", "Test NetworkAdapter 2",
kClientIPv6Addr2.ipaddr(), 64, rtc::ADAPTER_TYPE_ETHERNET);
rtc::Network wifi1("wifi1", "Test NetworkAdapter 3",
kClientIPv6Addr3.ipaddr(), 64, rtc::ADAPTER_TYPE_WIFI);
rtc::Network unknown("unknown", "Test NetworkAdapter 4",
kClientIPv6Addr2.ipaddr(), 64,
rtc::ADAPTER_TYPE_UNKNOWN);
rtc::Network vpn1("vpn1", "Test NetworkAdapter 5", kClientIPv6Addr3.ipaddr(),
64, rtc::ADAPTER_TYPE_VPN);
std::vector<const rtc::Network*> networks = {&cell1, &ethe1, &wifi1, &unknown,
&vpn1};
networks = BasicPortAllocatorSession::SelectIPv6Networks(
networks, /*max_ipv6_networks=*/2);
EXPECT_EQ(2U, networks.size());
// Ensure ethe1 and wifi1 were selected.
EXPECT_TRUE(HasNetwork(networks, wifi1));
EXPECT_TRUE(HasNetwork(networks, ethe1));
}
// Do not change the default IPv6 selection behavior if
// IPv6NetworkResolutionFixes is disabled.
TEST_F(BasicPortAllocatorTest,
NotDiversifyIPv6NetworkTypesIfIPv6NetworkResolutionFixesDisabled) {
webrtc::test::ScopedKeyValueConfig field_trials(
field_trials_, "WebRTC-IPv6NetworkResolutionFixes/Disabled/");
// Add three IPv6 network interfaces, but tell the allocator to only use two.
allocator().set_max_ipv6_networks(2);
AddInterface(kClientIPv6Addr, "ethe1", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr2, "ethe2", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr3, "wifi1", rtc::ADAPTER_TYPE_WIFI);
// To simplify the test, only gather UDP host candidates.
allocator().set_flags(PORTALLOCATOR_ENABLE_IPV6 | PORTALLOCATOR_DISABLE_TCP |
PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_ENABLE_IPV6_ON_WIFI);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(2U, candidates_.size());
// Wifi1 was not selected because it comes after ethe1 and ethe2.
EXPECT_FALSE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr3));
}
// Do not change the default IPv6 selection behavior if
// IPv6NetworkResolutionFixes is enabled but DiversifyIpv6Interfaces is not
// enabled.
TEST_F(BasicPortAllocatorTest,
NotDiversifyIPv6NetworkTypesIfDiversifyIpv6InterfacesDisabled) {
webrtc::test::ScopedKeyValueConfig field_trials(
field_trials_,
"WebRTC-IPv6NetworkResolutionFixes/"
"Enabled,DiversifyIpv6Interfaces:false/");
// Add three IPv6 network interfaces, but tell the allocator to only use two.
allocator().set_max_ipv6_networks(2);
AddInterface(kClientIPv6Addr, "ethe1", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr2, "ethe2", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr3, "wifi1", rtc::ADAPTER_TYPE_WIFI);
// To simplify the test, only gather UDP host candidates.
allocator().set_flags(PORTALLOCATOR_ENABLE_IPV6 | PORTALLOCATOR_DISABLE_TCP |
PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_ENABLE_IPV6_ON_WIFI);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(2U, candidates_.size());
// Wifi1 was not selected because it comes after ethe1 and ethe2.
EXPECT_FALSE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr3));
}
TEST_F(BasicPortAllocatorTest,
Select2DifferentIntefacesIfDiversifyIpv6InterfacesEnabled) {
webrtc::test::ScopedKeyValueConfig field_trials(
field_trials_,
"WebRTC-IPv6NetworkResolutionFixes/"
"Enabled,DiversifyIpv6Interfaces:true/");
allocator().set_max_ipv6_networks(2);
AddInterface(kClientIPv6Addr, "ethe1", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr2, "ethe2", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr3, "wifi1", rtc::ADAPTER_TYPE_WIFI);
AddInterface(kClientIPv6Addr4, "wifi2", rtc::ADAPTER_TYPE_WIFI);
AddInterface(kClientIPv6Addr5, "cell1", rtc::ADAPTER_TYPE_CELLULAR_3G);
// To simplify the test, only gather UDP host candidates.
allocator().set_flags(PORTALLOCATOR_ENABLE_IPV6 | PORTALLOCATOR_DISABLE_TCP |
PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_ENABLE_IPV6_ON_WIFI);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(2U, candidates_.size());
// ethe1 and wifi1 were selected.
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr3));
}
TEST_F(BasicPortAllocatorTest,
Select3DifferentIntefacesIfDiversifyIpv6InterfacesEnabled) {
webrtc::test::ScopedKeyValueConfig field_trials(
field_trials_,
"WebRTC-IPv6NetworkResolutionFixes/"
"Enabled,DiversifyIpv6Interfaces:true/");
allocator().set_max_ipv6_networks(3);
AddInterface(kClientIPv6Addr, "ethe1", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr2, "ethe2", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr3, "wifi1", rtc::ADAPTER_TYPE_WIFI);
AddInterface(kClientIPv6Addr4, "wifi2", rtc::ADAPTER_TYPE_WIFI);
AddInterface(kClientIPv6Addr5, "cell1", rtc::ADAPTER_TYPE_CELLULAR_3G);
// To simplify the test, only gather UDP host candidates.
allocator().set_flags(PORTALLOCATOR_ENABLE_IPV6 | PORTALLOCATOR_DISABLE_TCP |
PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_ENABLE_IPV6_ON_WIFI);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(3U, candidates_.size());
// ethe1, wifi1, and cell1 were selected.
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr3));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr5));
}
TEST_F(BasicPortAllocatorTest,
Select4DifferentIntefacesIfDiversifyIpv6InterfacesEnabled) {
webrtc::test::ScopedKeyValueConfig field_trials(
field_trials_,
"WebRTC-IPv6NetworkResolutionFixes/"
"Enabled,DiversifyIpv6Interfaces:true/");
allocator().set_max_ipv6_networks(4);
AddInterface(kClientIPv6Addr, "ethe1", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr2, "ethe2", rtc::ADAPTER_TYPE_ETHERNET);
AddInterface(kClientIPv6Addr3, "wifi1", rtc::ADAPTER_TYPE_WIFI);
AddInterface(kClientIPv6Addr4, "wifi2", rtc::ADAPTER_TYPE_WIFI);
AddInterface(kClientIPv6Addr5, "cell1", rtc::ADAPTER_TYPE_CELLULAR_3G);
// To simplify the test, only gather UDP host candidates.
allocator().set_flags(PORTALLOCATOR_ENABLE_IPV6 | PORTALLOCATOR_DISABLE_TCP |
PORTALLOCATOR_DISABLE_STUN |
PORTALLOCATOR_DISABLE_RELAY |
PORTALLOCATOR_ENABLE_IPV6_ON_WIFI);
ASSERT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
session_->StartGettingPorts();
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
kDefaultAllocationTimeout, fake_clock);
EXPECT_EQ(4U, candidates_.size());
// ethe1, ethe2, wifi1, and cell1 were selected.
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr2));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr3));
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientIPv6Addr5));
}
} // namespace cricket
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