266 lines
9.2 KiB
C++
266 lines
9.2 KiB
C++
/*
|
|
* 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
|