| /* |
| * Copyright 2013 The WebRTC Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <memory> |
| |
| #include "webrtc/p2p/base/asyncstuntcpsocket.h" |
| #include "webrtc/base/asyncsocket.h" |
| #include "webrtc/base/gunit.h" |
| #include "webrtc/base/physicalsocketserver.h" |
| #include "webrtc/base/virtualsocketserver.h" |
| |
| namespace cricket { |
| |
| static unsigned char kStunMessageWithZeroLength[] = { |
| 0x00, 0x01, 0x00, 0x00, // length of 0 (last 2 bytes) |
| 0x21, 0x12, 0xA4, 0x42, |
| '0', '1', '2', '3', |
| '4', '5', '6', '7', |
| '8', '9', 'a', 'b', |
| }; |
| |
| |
| static unsigned char kTurnChannelDataMessageWithZeroLength[] = { |
| 0x40, 0x00, 0x00, 0x00, // length of 0 (last 2 bytes) |
| }; |
| |
| static unsigned char kTurnChannelDataMessage[] = { |
| 0x40, 0x00, 0x00, 0x10, |
| 0x21, 0x12, 0xA4, 0x42, |
| '0', '1', '2', '3', |
| '4', '5', '6', '7', |
| '8', '9', 'a', 'b', |
| }; |
| |
| static unsigned char kStunMessageWithInvalidLength[] = { |
| 0x00, 0x01, 0x00, 0x10, |
| 0x21, 0x12, 0xA4, 0x42, |
| '0', '1', '2', '3', |
| '4', '5', '6', '7', |
| '8', '9', 'a', 'b', |
| }; |
| |
| static unsigned char kTurnChannelDataMessageWithInvalidLength[] = { |
| 0x80, 0x00, 0x00, 0x20, |
| 0x21, 0x12, 0xA4, 0x42, |
| '0', '1', '2', '3', |
| '4', '5', '6', '7', |
| '8', '9', 'a', 'b', |
| }; |
| |
| static unsigned char kTurnChannelDataMessageWithOddLength[] = { |
| 0x40, 0x00, 0x00, 0x05, |
| 0x21, 0x12, 0xA4, 0x42, |
| '0', |
| }; |
| |
| |
| static const rtc::SocketAddress kClientAddr("11.11.11.11", 0); |
| static const rtc::SocketAddress kServerAddr("22.22.22.22", 0); |
| |
| class AsyncStunTCPSocketTest : public testing::Test, |
| public sigslot::has_slots<> { |
| protected: |
| AsyncStunTCPSocketTest() |
| : vss_(new rtc::VirtualSocketServer(NULL)), |
| ss_scope_(vss_.get()) { |
| } |
| |
| virtual void SetUp() { |
| CreateSockets(); |
| } |
| |
| void CreateSockets() { |
| rtc::AsyncSocket* server = vss_->CreateAsyncSocket( |
| kServerAddr.family(), SOCK_STREAM); |
| server->Bind(kServerAddr); |
| recv_socket_.reset(new AsyncStunTCPSocket(server, true)); |
| recv_socket_->SignalNewConnection.connect( |
| this, &AsyncStunTCPSocketTest::OnNewConnection); |
| |
| rtc::AsyncSocket* client = vss_->CreateAsyncSocket( |
| kClientAddr.family(), SOCK_STREAM); |
| send_socket_.reset(AsyncStunTCPSocket::Create( |
| client, kClientAddr, recv_socket_->GetLocalAddress())); |
| ASSERT_TRUE(send_socket_.get() != NULL); |
| vss_->ProcessMessagesUntilIdle(); |
| } |
| |
| void OnReadPacket(rtc::AsyncPacketSocket* socket, const char* data, |
| size_t len, const rtc::SocketAddress& remote_addr, |
| const rtc::PacketTime& packet_time) { |
| recv_packets_.push_back(std::string(data, len)); |
| } |
| |
| void OnNewConnection(rtc::AsyncPacketSocket* server, |
| rtc::AsyncPacketSocket* new_socket) { |
| listen_socket_.reset(new_socket); |
| new_socket->SignalReadPacket.connect( |
| this, &AsyncStunTCPSocketTest::OnReadPacket); |
| } |
| |
| bool Send(const void* data, size_t len) { |
| rtc::PacketOptions options; |
| size_t ret = send_socket_->Send( |
| reinterpret_cast<const char*>(data), len, options); |
| vss_->ProcessMessagesUntilIdle(); |
| return (ret == len); |
| } |
| |
| bool CheckData(const void* data, int len) { |
| bool ret = false; |
| if (recv_packets_.size()) { |
| std::string packet = recv_packets_.front(); |
| recv_packets_.pop_front(); |
| ret = (memcmp(data, packet.c_str(), len) == 0); |
| } |
| return ret; |
| } |
| |
| std::unique_ptr<rtc::VirtualSocketServer> vss_; |
| rtc::SocketServerScope ss_scope_; |
| std::unique_ptr<AsyncStunTCPSocket> send_socket_; |
| std::unique_ptr<AsyncStunTCPSocket> recv_socket_; |
| std::unique_ptr<rtc::AsyncPacketSocket> listen_socket_; |
| std::list<std::string> recv_packets_; |
| }; |
| |
| // Testing a stun packet sent/recv properly. |
| TEST_F(AsyncStunTCPSocketTest, TestSingleStunPacket) { |
| EXPECT_TRUE(Send(kStunMessageWithZeroLength, |
| sizeof(kStunMessageWithZeroLength))); |
| EXPECT_EQ(1u, recv_packets_.size()); |
| EXPECT_TRUE(CheckData(kStunMessageWithZeroLength, |
| sizeof(kStunMessageWithZeroLength))); |
| } |
| |
| // Verify sending multiple packets. |
| TEST_F(AsyncStunTCPSocketTest, TestMultipleStunPackets) { |
| EXPECT_TRUE(Send(kStunMessageWithZeroLength, |
| sizeof(kStunMessageWithZeroLength))); |
| EXPECT_TRUE(Send(kStunMessageWithZeroLength, |
| sizeof(kStunMessageWithZeroLength))); |
| EXPECT_TRUE(Send(kStunMessageWithZeroLength, |
| sizeof(kStunMessageWithZeroLength))); |
| EXPECT_TRUE(Send(kStunMessageWithZeroLength, |
| sizeof(kStunMessageWithZeroLength))); |
| EXPECT_EQ(4u, recv_packets_.size()); |
| } |
| |
| // Verifying TURN channel data message with zero length. |
| TEST_F(AsyncStunTCPSocketTest, TestTurnChannelDataWithZeroLength) { |
| EXPECT_TRUE(Send(kTurnChannelDataMessageWithZeroLength, |
| sizeof(kTurnChannelDataMessageWithZeroLength))); |
| EXPECT_EQ(1u, recv_packets_.size()); |
| EXPECT_TRUE(CheckData(kTurnChannelDataMessageWithZeroLength, |
| sizeof(kTurnChannelDataMessageWithZeroLength))); |
| } |
| |
| // Verifying TURN channel data message. |
| TEST_F(AsyncStunTCPSocketTest, TestTurnChannelData) { |
| EXPECT_TRUE(Send(kTurnChannelDataMessage, |
| sizeof(kTurnChannelDataMessage))); |
| EXPECT_EQ(1u, recv_packets_.size()); |
| EXPECT_TRUE(CheckData(kTurnChannelDataMessage, |
| sizeof(kTurnChannelDataMessage))); |
| } |
| |
| // Verifying TURN channel messages which needs padding handled properly. |
| TEST_F(AsyncStunTCPSocketTest, TestTurnChannelDataPadding) { |
| EXPECT_TRUE(Send(kTurnChannelDataMessageWithOddLength, |
| sizeof(kTurnChannelDataMessageWithOddLength))); |
| EXPECT_EQ(1u, recv_packets_.size()); |
| EXPECT_TRUE(CheckData(kTurnChannelDataMessageWithOddLength, |
| sizeof(kTurnChannelDataMessageWithOddLength))); |
| } |
| |
| // Verifying stun message with invalid length. |
| TEST_F(AsyncStunTCPSocketTest, TestStunInvalidLength) { |
| EXPECT_FALSE(Send(kStunMessageWithInvalidLength, |
| sizeof(kStunMessageWithInvalidLength))); |
| EXPECT_EQ(0u, recv_packets_.size()); |
| |
| // Modify the message length to larger value. |
| kStunMessageWithInvalidLength[2] = 0xFF; |
| kStunMessageWithInvalidLength[3] = 0xFF; |
| EXPECT_FALSE(Send(kStunMessageWithInvalidLength, |
| sizeof(kStunMessageWithInvalidLength))); |
| |
| // Modify the message length to smaller value. |
| kStunMessageWithInvalidLength[2] = 0x00; |
| kStunMessageWithInvalidLength[3] = 0x01; |
| EXPECT_FALSE(Send(kStunMessageWithInvalidLength, |
| sizeof(kStunMessageWithInvalidLength))); |
| } |
| |
| // Verifying TURN channel data message with invalid length. |
| TEST_F(AsyncStunTCPSocketTest, TestTurnChannelDataWithInvalidLength) { |
| EXPECT_FALSE(Send(kTurnChannelDataMessageWithInvalidLength, |
| sizeof(kTurnChannelDataMessageWithInvalidLength))); |
| // Modify the length to larger value. |
| kTurnChannelDataMessageWithInvalidLength[2] = 0xFF; |
| kTurnChannelDataMessageWithInvalidLength[3] = 0xF0; |
| EXPECT_FALSE(Send(kTurnChannelDataMessageWithInvalidLength, |
| sizeof(kTurnChannelDataMessageWithInvalidLength))); |
| |
| // Modify the length to smaller value. |
| kTurnChannelDataMessageWithInvalidLength[2] = 0x00; |
| kTurnChannelDataMessageWithInvalidLength[3] = 0x00; |
| EXPECT_FALSE(Send(kTurnChannelDataMessageWithInvalidLength, |
| sizeof(kTurnChannelDataMessageWithInvalidLength))); |
| } |
| |
| // Verifying a small buffer handled (dropped) properly. This will be |
| // a common one for both stun and turn. |
| TEST_F(AsyncStunTCPSocketTest, TestTooSmallMessageBuffer) { |
| char data[1]; |
| EXPECT_FALSE(Send(data, sizeof(data))); |
| } |
| |
| // Verifying a legal large turn message. |
| TEST_F(AsyncStunTCPSocketTest, TestMaximumSizeTurnPacket) { |
| // We have problem in getting the SignalWriteEvent from the virtual socket |
| // server. So increasing the send buffer to 64k. |
| // TODO(mallinath) - Remove this setting after we fix vss issue. |
| vss_->set_send_buffer_capacity(64 * 1024); |
| unsigned char packet[65539]; |
| packet[0] = 0x40; |
| packet[1] = 0x00; |
| packet[2] = 0xFF; |
| packet[3] = 0xFF; |
| EXPECT_TRUE(Send(packet, sizeof(packet))); |
| } |
| |
| // Verifying a legal large stun message. |
| TEST_F(AsyncStunTCPSocketTest, TestMaximumSizeStunPacket) { |
| // We have problem in getting the SignalWriteEvent from the virtual socket |
| // server. So increasing the send buffer to 64k. |
| // TODO(mallinath) - Remove this setting after we fix vss issue. |
| vss_->set_send_buffer_capacity(64 * 1024); |
| unsigned char packet[65552]; |
| packet[0] = 0x00; |
| packet[1] = 0x01; |
| packet[2] = 0xFF; |
| packet[3] = 0xFC; |
| EXPECT_TRUE(Send(packet, sizeof(packet))); |
| } |
| |
| // Investigate why WriteEvent is not signaled from VSS. |
| TEST_F(AsyncStunTCPSocketTest, DISABLED_TestWithSmallSendBuffer) { |
| vss_->set_send_buffer_capacity(1); |
| Send(kTurnChannelDataMessageWithOddLength, |
| sizeof(kTurnChannelDataMessageWithOddLength)); |
| EXPECT_EQ(1u, recv_packets_.size()); |
| EXPECT_TRUE(CheckData(kTurnChannelDataMessageWithOddLength, |
| sizeof(kTurnChannelDataMessageWithOddLength))); |
| } |
| |
| } // namespace cricket |