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|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/socket/tcp_server_socket.h"
#include <memory>
#include <string>
#include <vector>
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/strings/string_view_util.h"
#include "net/base/address_list.h"
#include "net/base/io_buffer.h"
#include "net/base/ip_address.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/base/test_completion_callback.h"
#include "net/log/net_log_source.h"
#include "net/socket/tcp_client_socket.h"
#include "net/test/gtest_util.h"
#include "net/test/test_with_task_environment.h"
#include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"
using net::test::IsError;
using net::test::IsOk;
namespace net {
namespace {
const int kListenBacklog = 5;
class TCPServerSocketTest : public PlatformTest, public WithTaskEnvironment {
protected:
TCPServerSocketTest() : socket_(nullptr, NetLogSource()) {}
void SetUpIPv4() {
IPEndPoint address(IPAddress::IPv4Localhost(), 0);
ASSERT_THAT(
socket_.Listen(address, kListenBacklog, /*ipv6_only=*/std::nullopt),
IsOk());
ASSERT_THAT(socket_.GetLocalAddress(&local_address_), IsOk());
}
void SetUpIPv6(bool* success) {
*success = false;
IPEndPoint address(IPAddress::IPv6Localhost(), 0);
if (socket_.Listen(address, kListenBacklog, /*ipv6_only=*/std::nullopt) !=
0) {
LOG(ERROR) << "Failed to listen on ::1 - probably because IPv6 is "
"disabled. Skipping the test";
return;
}
ASSERT_THAT(socket_.GetLocalAddress(&local_address_), IsOk());
*success = true;
}
void SetUpIPv6AllInterfaces(bool ipv6_only) {
IPEndPoint address(IPAddress::IPv6AllZeros(), 0);
ASSERT_THAT(socket_.Listen(address, kListenBacklog, ipv6_only), IsOk());
ASSERT_THAT(socket_.GetLocalAddress(&local_address_), IsOk());
}
static IPEndPoint GetPeerAddress(StreamSocket* socket) {
IPEndPoint address;
EXPECT_THAT(socket->GetPeerAddress(&address), IsOk());
return address;
}
AddressList local_address_list() const {
return AddressList(local_address_);
}
TCPServerSocket socket_;
IPEndPoint local_address_;
};
TEST_F(TCPServerSocketTest, Accept) {
ASSERT_NO_FATAL_FAILURE(SetUpIPv4());
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(), nullptr, nullptr,
nullptr, NetLogSource());
int connect_result = connecting_socket.Connect(connect_callback.callback());
TestCompletionCallback accept_callback;
std::unique_ptr<StreamSocket> accepted_socket;
IPEndPoint peer_address;
int result = socket_.Accept(&accepted_socket, accept_callback.callback(),
&peer_address);
result = accept_callback.GetResult(result);
ASSERT_THAT(result, IsOk());
ASSERT_TRUE(accepted_socket.get() != nullptr);
// |peer_address| should be correctly populated.
EXPECT_EQ(peer_address.address(), local_address_.address());
// Both sockets should be on the loopback network interface.
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
EXPECT_THAT(connect_callback.GetResult(connect_result), IsOk());
}
// Test Accept() callback.
TEST_F(TCPServerSocketTest, AcceptAsync) {
ASSERT_NO_FATAL_FAILURE(SetUpIPv4());
TestCompletionCallback accept_callback;
std::unique_ptr<StreamSocket> accepted_socket;
IPEndPoint peer_address;
ASSERT_THAT(socket_.Accept(&accepted_socket, accept_callback.callback(),
&peer_address),
IsError(ERR_IO_PENDING));
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(), nullptr, nullptr,
nullptr, NetLogSource());
int connect_result = connecting_socket.Connect(connect_callback.callback());
EXPECT_THAT(connect_callback.GetResult(connect_result), IsOk());
EXPECT_THAT(accept_callback.WaitForResult(), IsOk());
EXPECT_TRUE(accepted_socket != nullptr);
// |peer_address| should be correctly populated.
EXPECT_EQ(peer_address.address(), local_address_.address());
// Both sockets should be on the loopback network interface.
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
}
// Test Accept() when client disconnects right after trying to connect.
TEST_F(TCPServerSocketTest, AcceptClientDisconnectAfterConnect) {
ASSERT_NO_FATAL_FAILURE(SetUpIPv4());
TestCompletionCallback accept_callback;
std::unique_ptr<StreamSocket> accepted_socket;
IPEndPoint peer_address;
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(), nullptr, nullptr,
nullptr, NetLogSource());
int connect_result = connecting_socket.Connect(connect_callback.callback());
EXPECT_THAT(connect_callback.GetResult(connect_result), IsOk());
int accept_result = socket_.Accept(&accepted_socket,
accept_callback.callback(), &peer_address);
connecting_socket.Disconnect();
EXPECT_THAT(accept_callback.GetResult(accept_result), IsOk());
EXPECT_TRUE(accepted_socket != nullptr);
// |peer_address| should be correctly populated.
EXPECT_EQ(peer_address.address(), local_address_.address());
}
// Accept two connections simultaneously.
TEST_F(TCPServerSocketTest, Accept2Connections) {
ASSERT_NO_FATAL_FAILURE(SetUpIPv4());
TestCompletionCallback accept_callback;
std::unique_ptr<StreamSocket> accepted_socket;
IPEndPoint peer_address;
ASSERT_EQ(ERR_IO_PENDING,
socket_.Accept(&accepted_socket, accept_callback.callback(),
&peer_address));
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(), nullptr, nullptr,
nullptr, NetLogSource());
int connect_result = connecting_socket.Connect(connect_callback.callback());
TestCompletionCallback connect_callback2;
TCPClientSocket connecting_socket2(local_address_list(), nullptr, nullptr,
nullptr, NetLogSource());
int connect_result2 =
connecting_socket2.Connect(connect_callback2.callback());
EXPECT_THAT(accept_callback.WaitForResult(), IsOk());
TestCompletionCallback accept_callback2;
std::unique_ptr<StreamSocket> accepted_socket2;
IPEndPoint peer_address2;
int result = socket_.Accept(&accepted_socket2, accept_callback2.callback(),
&peer_address2);
result = accept_callback2.GetResult(result);
ASSERT_THAT(result, IsOk());
EXPECT_THAT(connect_callback.GetResult(connect_result), IsOk());
EXPECT_THAT(connect_callback2.GetResult(connect_result2), IsOk());
EXPECT_TRUE(accepted_socket != nullptr);
EXPECT_TRUE(accepted_socket2 != nullptr);
EXPECT_NE(accepted_socket.get(), accepted_socket2.get());
EXPECT_EQ(peer_address.address(), local_address_.address());
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
EXPECT_EQ(peer_address2.address(), local_address_.address());
EXPECT_EQ(GetPeerAddress(accepted_socket2.get()).address(),
local_address_.address());
}
TEST_F(TCPServerSocketTest, AcceptIPv6) {
bool initialized = false;
ASSERT_NO_FATAL_FAILURE(SetUpIPv6(&initialized));
if (!initialized)
return;
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(), nullptr, nullptr,
nullptr, NetLogSource());
int connect_result = connecting_socket.Connect(connect_callback.callback());
TestCompletionCallback accept_callback;
std::unique_ptr<StreamSocket> accepted_socket;
IPEndPoint peer_address;
int result = socket_.Accept(&accepted_socket, accept_callback.callback(),
&peer_address);
result = accept_callback.GetResult(result);
ASSERT_THAT(result, IsOk());
ASSERT_TRUE(accepted_socket.get() != nullptr);
// |peer_address| should be correctly populated.
EXPECT_EQ(peer_address.address(), local_address_.address());
// Both sockets should be on the loopback network interface.
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
EXPECT_THAT(connect_callback.GetResult(connect_result), IsOk());
}
class TCPServerSocketTestWithIPv6Only
: public TCPServerSocketTest,
public testing::WithParamInterface<bool> {
public:
void AttemptToConnect(const IPAddress& dest_addr, bool should_succeed) {
TCPClientSocket connecting_socket(
AddressList(IPEndPoint(dest_addr, local_address_.port())), nullptr,
nullptr, nullptr, NetLogSource());
TestCompletionCallback connect_cb;
int connect_result = connecting_socket.Connect(connect_cb.callback());
if (!should_succeed) {
connect_result = connect_cb.GetResult(connect_result);
ASSERT_EQ(connect_result, net::ERR_CONNECTION_REFUSED);
return;
}
std::unique_ptr<StreamSocket> accepted_socket;
IPEndPoint peer_address;
TestCompletionCallback accept_cb;
int accept_result =
socket_.Accept(&accepted_socket, accept_cb.callback(), &peer_address);
ASSERT_EQ(accept_cb.GetResult(accept_result), net::OK);
ASSERT_EQ(connect_cb.GetResult(connect_result), net::OK);
// |accepted_socket| should be available.
ASSERT_NE(accepted_socket.get(), nullptr);
// |peer_address| should be correctly populated.
if (peer_address.address().IsIPv4MappedIPv6()) {
ASSERT_EQ(ConvertIPv4MappedIPv6ToIPv4(peer_address.address()), dest_addr);
} else {
ASSERT_EQ(peer_address.address(), dest_addr);
}
}
};
TEST_P(TCPServerSocketTestWithIPv6Only, AcceptIPv6Only) {
const bool ipv6_only = GetParam();
ASSERT_NO_FATAL_FAILURE(SetUpIPv6AllInterfaces(ipv6_only));
ASSERT_FALSE(local_address_list().empty());
// 127.0.0.1 succeeds when |ipv6_only| is false and vice versa.
AttemptToConnect(IPAddress::IPv4Localhost(), /*should_succeed=*/!ipv6_only);
// ::1 succeeds regardless of |ipv6_only|.
AttemptToConnect(IPAddress::IPv6Localhost(), /*should_succeed=*/true);
}
INSTANTIATE_TEST_SUITE_P(All, TCPServerSocketTestWithIPv6Only, testing::Bool());
TEST_F(TCPServerSocketTest, AcceptIO) {
ASSERT_NO_FATAL_FAILURE(SetUpIPv4());
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(), nullptr, nullptr,
nullptr, NetLogSource());
int connect_result = connecting_socket.Connect(connect_callback.callback());
TestCompletionCallback accept_callback;
std::unique_ptr<StreamSocket> accepted_socket;
IPEndPoint peer_address;
int result = socket_.Accept(&accepted_socket, accept_callback.callback(),
&peer_address);
ASSERT_THAT(accept_callback.GetResult(result), IsOk());
ASSERT_TRUE(accepted_socket.get() != nullptr);
// |peer_address| should be correctly populated.
EXPECT_EQ(peer_address.address(), local_address_.address());
// Both sockets should be on the loopback network interface.
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
EXPECT_THAT(connect_callback.GetResult(connect_result), IsOk());
const std::string message("test message");
auto write_buffer = base::MakeRefCounted<DrainableIOBuffer>(
base::MakeRefCounted<StringIOBuffer>(message), message.size());
while (write_buffer->size() > 0u) {
TestCompletionCallback write_callback;
int write_result = accepted_socket->Write(
write_buffer.get(), write_buffer->size(), write_callback.callback(),
TRAFFIC_ANNOTATION_FOR_TESTS);
write_result = write_callback.GetResult(write_result);
ASSERT_GE(write_result, 0);
ASSERT_LE(write_result, write_buffer->size());
write_buffer->DidConsume(write_result);
}
auto read_buffer = base::MakeRefCounted<DrainableIOBuffer>(
base::MakeRefCounted<IOBufferWithSize>(message.size()), message.size());
while (read_buffer->size() > 0u) {
TestCompletionCallback read_callback;
int read_result = connecting_socket.Read(
read_buffer.get(), read_buffer->size(), read_callback.callback());
read_result = read_callback.GetResult(read_result);
ASSERT_GE(read_result, 0);
ASSERT_LE(read_result, read_buffer->size());
read_buffer->DidConsume(read_result);
}
read_buffer->SetOffset(0);
ASSERT_EQ(message, base::as_string_view(read_buffer->span()));
}
} // namespace
} // namespace net
|
