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webrtc/p2p/client/basic_port_allocator_unittest.cc
Qingsi Wang cd8d1cf68e Surface ICE candidates that match an updated candidate filter. 
After this change an ICE agent can surface candidates that do not match
the previous filter but are allowed by the updated one. The candidate
filter, as part of the internal implementation in the ICE transport,
manifests the RTCIceTransportPolicy field in RTCConfiguration.

This new feature would allow an ICE agent to gather new candidates when
the transport policy changes from e.g. 'relay' to 'all' without an ICE
restart.

A caveat in the current implementation remains, and a candidate can
surface multiple times if the transport policy, or the candidate filter
directly, performs multiple transitions from a value that disallows to
one that allows the underlying candidate type. For example, if the
transport policy is updated by 'all' -> 'relay' -> 'all', the same host
candidate can surface after the second update.


Bug: webrtc:8939
Change-Id: I92c2e07dafab225c702c5de28f47958a0d3270cc
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132282
Commit-Queue: Qingsi Wang <qingsi@webrtc.org>
Reviewed-by: Jeroen de Borst <jeroendb@webrtc.org>
Reviewed-by: Seth Hampson <shampson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27674}
2019-04-17 19:29:31 +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 <memory>
#include <ostream> // no-presubmit-check TODO(webrtc:8982)
#include "absl/algorithm/container.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_relay_server.h"
#include "p2p/base/test_stun_server.h"
#include "p2p/base/test_turn_server.h"
#include "p2p/client/basic_port_allocator.h"
#include "rtc_base/fake_clock.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"
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 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 kRelayUdpIntAddr("99.99.99.2", 5000);
static const SocketAddress kRelayUdpExtAddr("99.99.99.3", 5001);
static const SocketAddress kRelayTcpIntAddr("99.99.99.2", 5002);
static const SocketAddress kRelayTcpExtAddr("99.99.99.3", 5003);
static const SocketAddress kRelaySslTcpIntAddr("99.99.99.2", 5004);
static const SocketAddress kRelaySslTcpExtAddr("99.99.99.3", 5005);
static const SocketAddress kTurnUdpIntAddr("99.99.99.4", 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;
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(rtc::Thread::Current(), kStunAddr)),
relay_server_(rtc::Thread::Current(),
kRelayUdpIntAddr,
kRelayUdpExtAddr,
kRelayTcpIntAddr,
kRelayTcpExtAddr,
kRelaySslTcpIntAddr,
kRelaySslTcpExtAddr),
turn_server_(rtc::Thread::Current(), kTurnUdpIntAddr, kTurnUdpExtAddr),
candidate_allocation_done_(false) {
ServerAddresses stun_servers;
stun_servers.insert(kStunAddr);
// Passing the addresses of GTURN servers will enable GTURN in
// Basicportallocator.
// TODO(deadbeef): Stop using GTURN by default in this test... Either the
// configuration should be blank by default (preferred), or it should use
// TURN instead.
allocator_.reset(new BasicPortAllocator(&network_manager_, stun_servers,
kRelayUdpIntAddr, kRelayTcpIntAddr,
kRelaySslTcpIntAddr));
allocator_->Initialize();
allocator_->set_step_delay(kMinimumStepDelay);
webrtc::metrics::Reset();
}
void AddInterface(const SocketAddress& addr) {
network_manager_.AddInterface(addr);
}
void AddInterface(const SocketAddress& addr, const std::string& if_name) {
network_manager_.AddInterface(addr, if_name);
}
void AddInterface(const SocketAddress& addr,
const std::string& if_name,
rtc::AdapterType type) {
network_manager_.AddInterface(addr, if_name, type);
}
// The default route 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. This may be different from the default local address
// which the endpoint observes. This can occur if the route to the public
// endpoint like 8.8.8.8 (specified as the default local address) is
// different from the route to the STUN server (the default route).
void AddInterfaceAsDefaultRoute(const SocketAddress& addr) {
AddInterface(addr);
// When a binding comes from the any address, the |addr| will be used as the
// srflx address.
vss_->SetDefaultRoute(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_));
allocator_->Initialize();
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);
}
void AddTurnServers(const rtc::SocketAddress& udp_turn,
const rtc::SocketAddress& tcp_turn) {
RelayServerConfig turn_server(RELAY_TURN);
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));
}
allocator_->AddTurnServer(turn_server);
}
bool CreateSession(int component) {
session_ = CreateSession("session", component);
if (!session_) {
return false;
}
return true;
}
bool CreateSession(int component, const std::string& content_name) {
session_ = CreateSession("session", content_name, component);
if (!session_) {
return false;
}
return true;
}
std::unique_ptr<PortAllocatorSession> CreateSession(const std::string& sid,
int component) {
return CreateSession(sid, kContentName, component);
}
std::unique_ptr<PortAllocatorSession> CreateSession(
const std::string& sid,
const std::string& content_name,
int component) {
return CreateSession(sid, content_name, component, kIceUfrag0, kIcePwd0);
}
std::unique_ptr<PortAllocatorSession> CreateSession(
const std::string& sid,
const std::string& content_name,
int component,
const std::string& ice_ufrag,
const std::string& 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);
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,
const std::string& 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,
const std::string& type,
const std::string& 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,
const std::string& type,
const std::string& 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,
const std::string& type,
const std::string& 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,
const std::string& type,
const std::string& 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);
}
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_.reset(new rtc::BasicPacketSocketFactory());
}
ServerAddresses stun_servers;
if (!stun_server.IsNil()) {
stun_servers.insert(stun_server);
}
allocator_.reset(new BasicPortAllocator(
&network_manager_, nat_socket_factory_.get(), stun_servers));
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_;
TestRelayServer relay_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_;
};
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_));
allocator_->Initialize();
allocator_->SetConfiguration(allocator_->stun_servers(),
allocator_->turn_servers(), 0, true);
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 TestUdpTurnPortPrunesTcpTurnPort() {
turn_server_.AddInternalSocket(kTurnTcpIntAddr, PROTO_TCP);
AddInterface(kClientAddr);
allocator_.reset(new BasicPortAllocator(&network_manager_));
allocator_->Initialize();
allocator_->SetConfiguration(allocator_->stun_servers(),
allocator_->turn_servers(), 0, true);
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));
EXPECT_EQ(1, CountPorts(ports_, "relay", PROTO_UDP, kClientAddr));
EXPECT_EQ(0, 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));
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_));
allocator_->Initialize();
allocator_->SetConfiguration(allocator_->stun_servers(),
allocator_->turn_servers(), 0, true);
// 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(1u, allocator().turn_servers().size());
EXPECT_EQ(RELAY_GTURN, allocator().turn_servers()[0].type);
// Empty relay credentials are used for GTURN.
EXPECT_TRUE(allocator().turn_servers()[0].credentials.username.empty());
EXPECT_TRUE(allocator().turn_servers()[0].credentials.password.empty());
EXPECT_TRUE(HasRelayAddress(ProtocolAddress(kRelayUdpIntAddr, PROTO_UDP)));
EXPECT_TRUE(HasRelayAddress(ProtocolAddress(kRelayTcpIntAddr, PROTO_TCP)));
EXPECT_TRUE(
HasRelayAddress(ProtocolAddress(kRelaySslTcpIntAddr, PROTO_SSLTCP)));
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(7U, candidates_.size());
EXPECT_EQ(4U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "local", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "stun", "udp", kClientAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpIntAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpExtAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "tcp", kRelayTcpIntAddr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
EXPECT_TRUE(
HasCandidate(candidates_, "relay", "ssltcp", kRelaySslTcpIntAddr));
}
// 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(7U, candidates_.size());
EXPECT_EQ(4U, 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();
// 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(7U, candidates_.size());
EXPECT_EQ(4U, 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(7U, candidates_.size());
EXPECT_EQ(4U, 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(6U, candidates_.size(), 2000, fake_clock);
EXPECT_EQ(3U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpIntAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpExtAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "tcp", kRelayTcpIntAddr));
EXPECT_TRUE(
HasCandidate(candidates_, "relay", "ssltcp", kRelaySslTcpIntAddr));
ASSERT_EQ_SIMULATED_WAIT(7U, candidates_.size(), 1500, fake_clock);
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
EXPECT_EQ(4U, 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(7U, 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(7U, candidates_.size());
EXPECT_EQ(4U, 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);
// Check the port number used to connect to the relay server.
EXPECT_TRUE(
CheckPort(relay_server_.GetConnection(0).source(), kMinPort, kMaxPort));
}
// 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);
AddInterfaceAsDefaultRoute(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));
}
// Disable for asan, see
// https://code.google.com/p/webrtc/issues/detail?id=4743 for details.
#if !defined(ADDRESS_SANITIZER)
// 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(5U, candidates_.size());
EXPECT_EQ(2U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpIntAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpExtAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "tcp", kRelayTcpIntAddr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
EXPECT_TRUE(
HasCandidate(candidates_, "relay", "ssltcp", kRelaySslTcpIntAddr));
}
#endif // if !defined(ADDRESS_SANITIZER)
// 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(5U, candidates_.size());
EXPECT_EQ(2U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpIntAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpExtAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "tcp", kRelayTcpIntAddr));
EXPECT_TRUE(HasCandidate(candidates_, "local", "tcp", kClientAddr));
EXPECT_TRUE(
HasCandidate(candidates_, "relay", "ssltcp", kRelaySslTcpIntAddr));
}
// 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));
// RelayPort connection timeout is 3sec. TCP connection with RelayServer
// will be tried after about 3 seconds.
EXPECT_EQ_SIMULATED_WAIT(6U, candidates_.size(), 3500, fake_clock);
EXPECT_EQ(3U, ports_.size());
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpIntAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "tcp", kRelayTcpIntAddr));
EXPECT_TRUE(
HasCandidate(candidates_, "relay", "ssltcp", kRelaySslTcpIntAddr));
EXPECT_TRUE(HasCandidate(candidates_, "relay", "udp", kRelayUdpExtAddr));
// We wait at least for a full STUN timeout, which
// cricket::STUN_TOTAL_TIMEOUT seconds. But since 3-3.5 seconds
// already passed (see above), we wait 3 seconds less than that.
EXPECT_TRUE_SIMULATED_WAIT(candidate_allocation_done_,
cricket::STUN_TOTAL_TIMEOUT - 3000, fake_clock);
}
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(7U, candidates_.size());
EXPECT_EQ(4U, 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(7U, candidates_.size());
EXPECT_EQ(4U, 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(7U, 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(4U, 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(6U, candidates_.size(), kDefaultAllocationTimeout,
fake_clock);
EXPECT_EQ(3U, 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_));
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 prune_turn_ports is set, 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);
TestUdpTurnPortPrunesTcpTurnPort();
}
// Test that if prune_turn_ports is set, 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);
TestUdpTurnPortPrunesTcpTurnPort();
}
// Tests that if prune_turn_ports is set, 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 prune_turn_ports is set, 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 prune_turn_ports is set, 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 prune_turn_ports is set, 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_));
allocator_->Initialize();
RelayServerConfig turn_server(RELAY_TURN);
RelayCredentials credentials(kTurnUsername, kTurnPassword);
turn_server.credentials = credentials;
turn_server.ports.push_back(
ProtocolAddress(rtc::SocketAddress("localhost", 3478), PROTO_UDP));
allocator_->AddTurnServer(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, false);
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, false);
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, false,
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, false,
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, false,
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, false,
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, false,
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_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_.CreateMdnsResponder(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);
}
} // namespace cricket
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