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rhubarb-lip-sync/rhubarb/lib/webrtc-8d2248ff/webrtc/base/sslstreamadapter_unittest.cc

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Added WebRTC library
2016-06-21 20:13:05 +00:00
/*
* Copyright 2011 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 <algorithm>
#include <memory>
#include <set>
#include <string>
#include "webrtc/base/bufferqueue.h"
#include "webrtc/base/gunit.h"
#include "webrtc/base/helpers.h"
#include "webrtc/base/ssladapter.h"
#include "webrtc/base/sslconfig.h"
#include "webrtc/base/sslidentity.h"
#include "webrtc/base/sslstreamadapter.h"
#include "webrtc/base/stream.h"
using ::testing::WithParamInterface;
using ::testing::Values;
using ::testing::Combine;
using ::testing::tuple;
static const int kBlockSize = 4096;
static const char kExporterLabel[] = "label";
static const unsigned char kExporterContext[] = "context";
static int kExporterContextLen = sizeof(kExporterContext);
static const char kRSA_PRIVATE_KEY_PEM[] =
"-----BEGIN RSA PRIVATE KEY-----\n"
"MIICdwIBADANBgkqhkiG9w0BAQEFAASCAmEwggJdAgEAAoGBAMYRkbhmI7kVA/rM\n"
"czsZ+6JDhDvnkF+vn6yCAGuRPV03zuRqZtDy4N4to7PZu9PjqrRl7nDMXrG3YG9y\n"
"rlIAZ72KjcKKFAJxQyAKLCIdawKRyp8RdK3LEySWEZb0AV58IadqPZDTNHHRX8dz\n"
"5aTSMsbbkZ+C/OzTnbiMqLL/vg6jAgMBAAECgYAvgOs4FJcgvp+TuREx7YtiYVsH\n"
"mwQPTum2z/8VzWGwR8BBHBvIpVe1MbD/Y4seyI2aco/7UaisatSgJhsU46/9Y4fq\n"
"2TwXH9QANf4at4d9n/R6rzwpAJOpgwZgKvdQjkfrKTtgLV+/dawvpxUYkRH4JZM1\n"
"CVGukMfKNrSVH4Ap4QJBAOJmGV1ASPnB4r4nc99at7JuIJmd7fmuVUwUgYi4XgaR\n"
"WhScBsgYwZ/JoywdyZJgnbcrTDuVcWG56B3vXbhdpMsCQQDf9zeJrjnPZ3Cqm79y\n"
"kdqANep0uwZciiNiWxsQrCHztywOvbFhdp8iYVFG9EK8DMY41Y5TxUwsHD+67zao\n"
"ZNqJAkEA1suLUP/GvL8IwuRneQd2tWDqqRQ/Td3qq03hP7e77XtF/buya3Ghclo5\n"
"54czUR89QyVfJEC6278nzA7n2h1uVQJAcG6mztNL6ja/dKZjYZye2CY44QjSlLo0\n"
"MTgTSjdfg/28fFn2Jjtqf9Pi/X+50LWI/RcYMC2no606wRk9kyOuIQJBAK6VSAim\n"
"1pOEjsYQn0X5KEIrz1G3bfCbB848Ime3U2/FWlCHMr6ch8kCZ5d1WUeJD3LbwMNG\n"
"UCXiYxSsu20QNVw=\n"
"-----END RSA PRIVATE KEY-----\n";
static const char kCERT_PEM[] =
"-----BEGIN CERTIFICATE-----\n"
"MIIBmTCCAQKgAwIBAgIEbzBSAjANBgkqhkiG9w0BAQsFADARMQ8wDQYDVQQDEwZX\n"
"ZWJSVEMwHhcNMTQwMTAyMTgyNDQ3WhcNMTQwMjAxMTgyNDQ3WjARMQ8wDQYDVQQD\n"
"EwZXZWJSVEMwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMYRkbhmI7kVA/rM\n"
"czsZ+6JDhDvnkF+vn6yCAGuRPV03zuRqZtDy4N4to7PZu9PjqrRl7nDMXrG3YG9y\n"
"rlIAZ72KjcKKFAJxQyAKLCIdawKRyp8RdK3LEySWEZb0AV58IadqPZDTNHHRX8dz\n"
"5aTSMsbbkZ+C/OzTnbiMqLL/vg6jAgMBAAEwDQYJKoZIhvcNAQELBQADgYEAUflI\n"
"VUe5Krqf5RVa5C3u/UTAOAUJBiDS3VANTCLBxjuMsvqOG0WvaYWP3HYPgrz0jXK2\n"
"LJE/mGw3MyFHEqi81jh95J+ypl6xKW6Rm8jKLR87gUvCaVYn/Z4/P3AqcQTB7wOv\n"
"UD0A8qfhfDM+LK6rPAnCsVN0NRDY3jvd6rzix9M=\n"
"-----END CERTIFICATE-----\n";
#define MAYBE_SKIP_TEST(feature) \
if (!(rtc::SSLStreamAdapter::feature())) { \
LOG(LS_INFO) << "Feature disabled... skipping"; \
return; \
}
class SSLStreamAdapterTestBase;
class SSLDummyStreamBase : public rtc::StreamInterface,
public sigslot::has_slots<> {
public:
SSLDummyStreamBase(SSLStreamAdapterTestBase* test,
const std::string &side,
rtc::StreamInterface* in,
rtc::StreamInterface* out) :
test_base_(test),
side_(side),
in_(in),
out_(out),
first_packet_(true) {
in_->SignalEvent.connect(this, &SSLDummyStreamBase::OnEventIn);
out_->SignalEvent.connect(this, &SSLDummyStreamBase::OnEventOut);
}
rtc::StreamState GetState() const override { return rtc::SS_OPEN; }
rtc::StreamResult Read(void* buffer, size_t buffer_len,
size_t* read, int* error) override {
rtc::StreamResult r;
r = in_->Read(buffer, buffer_len, read, error);
if (r == rtc::SR_BLOCK)
return rtc::SR_BLOCK;
if (r == rtc::SR_EOS)
return rtc::SR_EOS;
if (r != rtc::SR_SUCCESS) {
ADD_FAILURE();
return rtc::SR_ERROR;
}
return rtc::SR_SUCCESS;
}
// Catch readability events on in and pass them up.
void OnEventIn(rtc::StreamInterface* stream, int sig, int err) {
int mask = (rtc::SE_READ | rtc::SE_CLOSE);
if (sig & mask) {
LOG(LS_INFO) << "SSLDummyStreamBase::OnEvent side=" << side_ << " sig="
<< sig << " forwarding upward";
PostEvent(sig & mask, 0);
}
}
// Catch writeability events on out and pass them up.
void OnEventOut(rtc::StreamInterface* stream, int sig, int err) {
if (sig & rtc::SE_WRITE) {
LOG(LS_INFO) << "SSLDummyStreamBase::OnEvent side=" << side_ << " sig="
<< sig << " forwarding upward";
PostEvent(sig & rtc::SE_WRITE, 0);
}
}
// Write to the outgoing FifoBuffer
rtc::StreamResult WriteData(const void* data, size_t data_len,
size_t* written, int* error) {
return out_->Write(data, data_len, written, error);
}
rtc::StreamResult Write(const void* data, size_t data_len,
size_t* written, int* error) override;
void Close() override {
LOG(LS_INFO) << "Closing outbound stream";
out_->Close();
}
protected:
SSLStreamAdapterTestBase* test_base_;
const std::string side_;
rtc::StreamInterface* in_;
rtc::StreamInterface* out_;
bool first_packet_;
};
class SSLDummyStreamTLS : public SSLDummyStreamBase {
public:
SSLDummyStreamTLS(SSLStreamAdapterTestBase* test,
const std::string& side,
rtc::FifoBuffer* in,
rtc::FifoBuffer* out) :
SSLDummyStreamBase(test, side, in, out) {
}
};
class BufferQueueStream : public rtc::BufferQueue,
public rtc::StreamInterface {
public:
BufferQueueStream(size_t capacity, size_t default_size)
: rtc::BufferQueue(capacity, default_size) {
}
// Implementation of abstract StreamInterface methods.
// A buffer queue stream is always "open".
rtc::StreamState GetState() const override { return rtc::SS_OPEN; }
// Reading a buffer queue stream will either succeed or block.
rtc::StreamResult Read(void* buffer, size_t buffer_len,
size_t* read, int* error) override {
if (!ReadFront(buffer, buffer_len, read)) {
return rtc::SR_BLOCK;
}
return rtc::SR_SUCCESS;
}
// Writing to a buffer queue stream will either succeed or block.
rtc::StreamResult Write(const void* data, size_t data_len,
size_t* written, int* error) override {
if (!WriteBack(data, data_len, written)) {
return rtc::SR_BLOCK;
}
return rtc::SR_SUCCESS;
}
// A buffer queue stream can not be closed.
void Close() override {}
protected:
void NotifyReadableForTest() override {
PostEvent(rtc::SE_READ, 0);
}
void NotifyWritableForTest() override {
PostEvent(rtc::SE_WRITE, 0);
}
};
class SSLDummyStreamDTLS : public SSLDummyStreamBase {
public:
SSLDummyStreamDTLS(SSLStreamAdapterTestBase* test,
const std::string& side,
BufferQueueStream* in,
BufferQueueStream* out) :
SSLDummyStreamBase(test, side, in, out) {
}
};
static const int kFifoBufferSize = 4096;
static const int kBufferCapacity = 1;
static const size_t kDefaultBufferSize = 2048;
class SSLStreamAdapterTestBase : public testing::Test,
public sigslot::has_slots<> {
public:
SSLStreamAdapterTestBase(
const std::string& client_cert_pem,
const std::string& client_private_key_pem,
bool dtls,
rtc::KeyParams client_key_type = rtc::KeyParams(rtc::KT_DEFAULT),
rtc::KeyParams server_key_type = rtc::KeyParams(rtc::KT_DEFAULT))
: client_cert_pem_(client_cert_pem),
client_private_key_pem_(client_private_key_pem),
client_key_type_(client_key_type),
server_key_type_(server_key_type),
client_stream_(NULL),
server_stream_(NULL),
client_identity_(NULL),
server_identity_(NULL),
delay_(0),
mtu_(1460),
loss_(0),
lose_first_packet_(false),
damage_(false),
dtls_(dtls),
handshake_wait_(5000),
identities_set_(false) {
// Set use of the test RNG to get predictable loss patterns.
rtc::SetRandomTestMode(true);
}
~SSLStreamAdapterTestBase() {
// Put it back for the next test.
rtc::SetRandomTestMode(false);
}
void SetUp() override {
CreateStreams();
client_ssl_.reset(rtc::SSLStreamAdapter::Create(client_stream_));
server_ssl_.reset(rtc::SSLStreamAdapter::Create(server_stream_));
// Set up the slots
client_ssl_->SignalEvent.connect(this, &SSLStreamAdapterTestBase::OnEvent);
server_ssl_->SignalEvent.connect(this, &SSLStreamAdapterTestBase::OnEvent);
if (!client_cert_pem_.empty() && !client_private_key_pem_.empty()) {
client_identity_ = rtc::SSLIdentity::FromPEMStrings(
client_private_key_pem_, client_cert_pem_);
} else {
client_identity_ = rtc::SSLIdentity::Generate("client", client_key_type_);
}
server_identity_ = rtc::SSLIdentity::Generate("server", server_key_type_);
client_ssl_->SetIdentity(client_identity_);
server_ssl_->SetIdentity(server_identity_);
}
void TearDown() override {
client_ssl_.reset(nullptr);
server_ssl_.reset(nullptr);
}
virtual void CreateStreams() = 0;
// Recreate the client/server identities with the specified validity period.
// |not_before| and |not_after| are offsets from the current time in number
// of seconds.
void ResetIdentitiesWithValidity(int not_before, int not_after) {
CreateStreams();
client_ssl_.reset(rtc::SSLStreamAdapter::Create(client_stream_));
server_ssl_.reset(rtc::SSLStreamAdapter::Create(server_stream_));
client_ssl_->SignalEvent.connect(this, &SSLStreamAdapterTestBase::OnEvent);
server_ssl_->SignalEvent.connect(this, &SSLStreamAdapterTestBase::OnEvent);
time_t now = time(nullptr);
rtc::SSLIdentityParams client_params;
client_params.key_params = rtc::KeyParams(rtc::KT_DEFAULT);
client_params.common_name = "client";
client_params.not_before = now + not_before;
client_params.not_after = now + not_after;
client_identity_ = rtc::SSLIdentity::GenerateForTest(client_params);
rtc::SSLIdentityParams server_params;
server_params.key_params = rtc::KeyParams(rtc::KT_DEFAULT);
server_params.common_name = "server";
server_params.not_before = now + not_before;
server_params.not_after = now + not_after;
server_identity_ = rtc::SSLIdentity::GenerateForTest(server_params);
client_ssl_->SetIdentity(client_identity_);
server_ssl_->SetIdentity(server_identity_);
}
virtual void OnEvent(rtc::StreamInterface *stream, int sig, int err) {
LOG(LS_INFO) << "SSLStreamAdapterTestBase::OnEvent sig=" << sig;
if (sig & rtc::SE_READ) {
ReadData(stream);
}
if ((stream == client_ssl_.get()) && (sig & rtc::SE_WRITE)) {
WriteData();
}
}
void SetPeerIdentitiesByDigest(bool correct) {
unsigned char digest[20];
size_t digest_len;
bool rv;
LOG(LS_INFO) << "Setting peer identities by digest";
rv = server_identity_->certificate().ComputeDigest(rtc::DIGEST_SHA_1,
digest, 20,
&digest_len);
ASSERT_TRUE(rv);
if (!correct) {
LOG(LS_INFO) << "Setting bogus digest for server cert";
digest[0]++;
}
rv = client_ssl_->SetPeerCertificateDigest(rtc::DIGEST_SHA_1, digest,
digest_len);
ASSERT_TRUE(rv);
rv = client_identity_->certificate().ComputeDigest(rtc::DIGEST_SHA_1,
digest, 20, &digest_len);
ASSERT_TRUE(rv);
if (!correct) {
LOG(LS_INFO) << "Setting bogus digest for client cert";
digest[0]++;
}
rv = server_ssl_->SetPeerCertificateDigest(rtc::DIGEST_SHA_1, digest,
digest_len);
ASSERT_TRUE(rv);
identities_set_ = true;
}
void SetupProtocolVersions(rtc::SSLProtocolVersion server_version,
rtc::SSLProtocolVersion client_version) {
server_ssl_->SetMaxProtocolVersion(server_version);
client_ssl_->SetMaxProtocolVersion(client_version);
}
void TestHandshake(bool expect_success = true) {
server_ssl_->SetMode(dtls_ ? rtc::SSL_MODE_DTLS :
rtc::SSL_MODE_TLS);
client_ssl_->SetMode(dtls_ ? rtc::SSL_MODE_DTLS :
rtc::SSL_MODE_TLS);
if (!dtls_) {
// Make sure we simulate a reliable network for TLS.
// This is just a check to make sure that people don't write wrong
// tests.
ASSERT((mtu_ == 1460) && (loss_ == 0) && (lose_first_packet_ == 0));
}
if (!identities_set_)
SetPeerIdentitiesByDigest(true);
// Start the handshake
int rv;
server_ssl_->SetServerRole();
rv = server_ssl_->StartSSLWithPeer();
ASSERT_EQ(0, rv);
rv = client_ssl_->StartSSLWithPeer();
ASSERT_EQ(0, rv);
// Now run the handshake
if (expect_success) {
EXPECT_TRUE_WAIT((client_ssl_->GetState() == rtc::SS_OPEN)
&& (server_ssl_->GetState() == rtc::SS_OPEN),
handshake_wait_);
} else {
EXPECT_TRUE_WAIT(client_ssl_->GetState() == rtc::SS_CLOSED,
handshake_wait_);
}
}
rtc::StreamResult DataWritten(SSLDummyStreamBase *from, const void *data,
size_t data_len, size_t *written,
int *error) {
// Randomly drop loss_ percent of packets
if (rtc::CreateRandomId() % 100 < static_cast<uint32_t>(loss_)) {
LOG(LS_INFO) << "Randomly dropping packet, size=" << data_len;
*written = data_len;
return rtc::SR_SUCCESS;
}
if (dtls_ && (data_len > mtu_)) {
LOG(LS_INFO) << "Dropping packet > mtu, size=" << data_len;
*written = data_len;
return rtc::SR_SUCCESS;
}
// Optionally damage application data (type 23). Note that we don't damage
// handshake packets and we damage the last byte to keep the header
// intact but break the MAC.
if (damage_ && (*static_cast<const unsigned char *>(data) == 23)) {
std::vector<char> buf(data_len);
LOG(LS_INFO) << "Damaging packet";
memcpy(&buf[0], data, data_len);
buf[data_len - 1]++;
return from->WriteData(&buf[0], data_len, written, error);
}
return from->WriteData(data, data_len, written, error);
}
void SetDelay(int delay) {
delay_ = delay;
}
int GetDelay() { return delay_; }
void SetLoseFirstPacket(bool lose) {
lose_first_packet_ = lose;
}
bool GetLoseFirstPacket() { return lose_first_packet_; }
void SetLoss(int percent) {
loss_ = percent;
}
void SetDamage() {
damage_ = true;
}
void SetMtu(size_t mtu) {
mtu_ = mtu;
}
void SetHandshakeWait(int wait) {
handshake_wait_ = wait;
}
void SetDtlsSrtpCryptoSuites(const std::vector<int>& ciphers, bool client) {
if (client)
client_ssl_->SetDtlsSrtpCryptoSuites(ciphers);
else
server_ssl_->SetDtlsSrtpCryptoSuites(ciphers);
}
bool GetDtlsSrtpCryptoSuite(bool client, int* retval) {
if (client)
return client_ssl_->GetDtlsSrtpCryptoSuite(retval);
else
return server_ssl_->GetDtlsSrtpCryptoSuite(retval);
}
std::unique_ptr<rtc::SSLCertificate> GetPeerCertificate(bool client) {
if (client)
return client_ssl_->GetPeerCertificate();
else
return server_ssl_->GetPeerCertificate();
}
bool GetSslCipherSuite(bool client, int* retval) {
if (client)
return client_ssl_->GetSslCipherSuite(retval);
else
return server_ssl_->GetSslCipherSuite(retval);
}
int GetSslVersion(bool client) {
if (client)
return client_ssl_->GetSslVersion();
else
return server_ssl_->GetSslVersion();
}
bool ExportKeyingMaterial(const char *label,
const unsigned char *context,
size_t context_len,
bool use_context,
bool client,
unsigned char *result,
size_t result_len) {
if (client)
return client_ssl_->ExportKeyingMaterial(label,
context, context_len,
use_context,
result, result_len);
else
return server_ssl_->ExportKeyingMaterial(label,
context, context_len,
use_context,
result, result_len);
}
// To be implemented by subclasses.
virtual void WriteData() = 0;
virtual void ReadData(rtc::StreamInterface *stream) = 0;
virtual void TestTransfer(int size) = 0;
protected:
std::string client_cert_pem_;
std::string client_private_key_pem_;
rtc::KeyParams client_key_type_;
rtc::KeyParams server_key_type_;
SSLDummyStreamBase *client_stream_; // freed by client_ssl_ destructor
SSLDummyStreamBase *server_stream_; // freed by server_ssl_ destructor
std::unique_ptr<rtc::SSLStreamAdapter> client_ssl_;
std::unique_ptr<rtc::SSLStreamAdapter> server_ssl_;
rtc::SSLIdentity *client_identity_; // freed by client_ssl_ destructor
rtc::SSLIdentity *server_identity_; // freed by server_ssl_ destructor
int delay_;
size_t mtu_;
int loss_;
bool lose_first_packet_;
bool damage_;
bool dtls_;
int handshake_wait_;
bool identities_set_;
};
class SSLStreamAdapterTestTLS
: public SSLStreamAdapterTestBase,
public WithParamInterface<tuple<rtc::KeyParams, rtc::KeyParams>> {
public:
SSLStreamAdapterTestTLS()
: SSLStreamAdapterTestBase("",
"",
false,
::testing::get<0>(GetParam()),
::testing::get<1>(GetParam())),
client_buffer_(kFifoBufferSize),
server_buffer_(kFifoBufferSize) {
}
void CreateStreams() override {
client_stream_ =
new SSLDummyStreamTLS(this, "c2s", &client_buffer_, &server_buffer_);
server_stream_ =
new SSLDummyStreamTLS(this, "s2c", &server_buffer_, &client_buffer_);
}
// Test data transfer for TLS
void TestTransfer(int size) override {
LOG(LS_INFO) << "Starting transfer test with " << size << " bytes";
// Create some dummy data to send.
size_t received;
send_stream_.ReserveSize(size);
for (int i = 0; i < size; ++i) {
char ch = static_cast<char>(i);
send_stream_.Write(&ch, 1, NULL, NULL);
}
send_stream_.Rewind();
// Prepare the receive stream.
recv_stream_.ReserveSize(size);
// Start sending
WriteData();
// Wait for the client to close
EXPECT_TRUE_WAIT(server_ssl_->GetState() == rtc::SS_CLOSED, 10000);
// Now check the data
recv_stream_.GetSize(&received);
EXPECT_EQ(static_cast<size_t>(size), received);
EXPECT_EQ(0, memcmp(send_stream_.GetBuffer(),
recv_stream_.GetBuffer(), size));
}
void WriteData() override {
size_t position, tosend, size;
rtc::StreamResult rv;
size_t sent;
char block[kBlockSize];
send_stream_.GetSize(&size);
if (!size)
return;
for (;;) {
send_stream_.GetPosition(&position);
if (send_stream_.Read(block, sizeof(block), &tosend, NULL) !=
rtc::SR_EOS) {
rv = client_ssl_->Write(block, tosend, &sent, 0);
if (rv == rtc::SR_SUCCESS) {
send_stream_.SetPosition(position + sent);
LOG(LS_VERBOSE) << "Sent: " << position + sent;
} else if (rv == rtc::SR_BLOCK) {
LOG(LS_VERBOSE) << "Blocked...";
send_stream_.SetPosition(position);
break;
} else {
ADD_FAILURE();
break;
}
} else {
// Now close
LOG(LS_INFO) << "Wrote " << position << " bytes. Closing";
client_ssl_->Close();
break;
}
}
};
void ReadData(rtc::StreamInterface *stream) override {
char buffer[1600];
size_t bread;
int err2;
rtc::StreamResult r;
for (;;) {
r = stream->Read(buffer, sizeof(buffer), &bread, &err2);
if (r == rtc::SR_ERROR || r == rtc::SR_EOS) {
// Unfortunately, errors are the way that the stream adapter
// signals close in OpenSSL.
stream->Close();
return;
}
if (r == rtc::SR_BLOCK)
break;
ASSERT_EQ(rtc::SR_SUCCESS, r);
LOG(LS_INFO) << "Read " << bread;
recv_stream_.Write(buffer, bread, NULL, NULL);
}
}
private:
rtc::FifoBuffer client_buffer_;
rtc::FifoBuffer server_buffer_;
rtc::MemoryStream send_stream_;
rtc::MemoryStream recv_stream_;
};
class SSLStreamAdapterTestDTLS
: public SSLStreamAdapterTestBase,
public WithParamInterface<tuple<rtc::KeyParams, rtc::KeyParams>> {
public:
SSLStreamAdapterTestDTLS()
: SSLStreamAdapterTestBase("",
"",
true,
::testing::get<0>(GetParam()),
::testing::get<1>(GetParam())),
client_buffer_(kBufferCapacity, kDefaultBufferSize),
server_buffer_(kBufferCapacity, kDefaultBufferSize),
packet_size_(1000),
count_(0),
sent_(0) {}
SSLStreamAdapterTestDTLS(const std::string& cert_pem,
const std::string& private_key_pem) :
SSLStreamAdapterTestBase(cert_pem, private_key_pem, true),
client_buffer_(kBufferCapacity, kDefaultBufferSize),
server_buffer_(kBufferCapacity, kDefaultBufferSize),
packet_size_(1000), count_(0), sent_(0) {
}
void CreateStreams() override {
client_stream_ =
new SSLDummyStreamDTLS(this, "c2s", &client_buffer_, &server_buffer_);
server_stream_ =
new SSLDummyStreamDTLS(this, "s2c", &server_buffer_, &client_buffer_);
}
void WriteData() override {
unsigned char *packet = new unsigned char[1600];
while (sent_ < count_) {
unsigned int rand_state = sent_;
packet[0] = sent_;
for (size_t i = 1; i < packet_size_; i++) {
// This is a simple LC PRNG. Keep in synch with identical code below.
rand_state = (rand_state * 251 + 19937) >> 7;
packet[i] = rand_state & 0xff;
}
size_t sent;
rtc::StreamResult rv = client_ssl_->Write(packet, packet_size_, &sent, 0);
if (rv == rtc::SR_SUCCESS) {
LOG(LS_VERBOSE) << "Sent: " << sent_;
sent_++;
} else if (rv == rtc::SR_BLOCK) {
LOG(LS_VERBOSE) << "Blocked...";
break;
} else {
ADD_FAILURE();
break;
}
}
delete [] packet;
}
void ReadData(rtc::StreamInterface *stream) override {
unsigned char buffer[2000];
size_t bread;
int err2;
rtc::StreamResult r;
for (;;) {
r = stream->Read(buffer, 2000, &bread, &err2);
if (r == rtc::SR_ERROR) {
// Unfortunately, errors are the way that the stream adapter
// signals close right now
stream->Close();
return;
}
if (r == rtc::SR_BLOCK)
break;
ASSERT_EQ(rtc::SR_SUCCESS, r);
LOG(LS_INFO) << "Read " << bread;
// Now parse the datagram
ASSERT_EQ(packet_size_, bread);
unsigned char packet_num = buffer[0];
unsigned int rand_state = packet_num;
for (size_t i = 1; i < packet_size_; i++) {
// This is a simple LC PRNG. Keep in synch with identical code above.
rand_state = (rand_state * 251 + 19937) >> 7;
ASSERT_EQ(rand_state & 0xff, buffer[i]);
}
received_.insert(packet_num);
}
}
void TestTransfer(int count) override {
count_ = count;
WriteData();
EXPECT_TRUE_WAIT(sent_ == count_, 10000);
LOG(LS_INFO) << "sent_ == " << sent_;
if (damage_) {
WAIT(false, 2000);
EXPECT_EQ(0U, received_.size());
} else if (loss_ == 0) {
EXPECT_EQ_WAIT(static_cast<size_t>(sent_), received_.size(), 1000);
} else {
LOG(LS_INFO) << "Sent " << sent_ << " packets; received " <<
received_.size();
}
};
private:
BufferQueueStream client_buffer_;
BufferQueueStream server_buffer_;
size_t packet_size_;
int count_;
int sent_;
std::set<int> received_;
};
rtc::StreamResult SSLDummyStreamBase::Write(const void* data, size_t data_len,
size_t* written, int* error) {
LOG(LS_INFO) << "Writing to loopback " << data_len;
if (first_packet_) {
first_packet_ = false;
if (test_base_->GetLoseFirstPacket()) {
LOG(LS_INFO) << "Losing initial packet of length " << data_len;
*written = data_len; // Fake successful writing also to writer.
return rtc::SR_SUCCESS;
}
}
return test_base_->DataWritten(this, data, data_len, written, error);
};
class SSLStreamAdapterTestDTLSFromPEMStrings : public SSLStreamAdapterTestDTLS {
public:
SSLStreamAdapterTestDTLSFromPEMStrings() :
SSLStreamAdapterTestDTLS(kCERT_PEM, kRSA_PRIVATE_KEY_PEM) {
}
};
// Basic tests: TLS
// Test that we can make a handshake work
TEST_P(SSLStreamAdapterTestTLS, TestTLSConnect) {
TestHandshake();
};
// Test that closing the connection on one side updates the other side.
TEST_P(SSLStreamAdapterTestTLS, TestTLSClose) {
TestHandshake();
client_ssl_->Close();
EXPECT_EQ_WAIT(rtc::SS_CLOSED, server_ssl_->GetState(), handshake_wait_);
};
// Test transfer -- trivial
TEST_P(SSLStreamAdapterTestTLS, TestTLSTransfer) {
TestHandshake();
TestTransfer(100000);
};
// Test read-write after close.
TEST_P(SSLStreamAdapterTestTLS, ReadWriteAfterClose) {
TestHandshake();
TestTransfer(100000);
client_ssl_->Close();
rtc::StreamResult rv;
char block[kBlockSize];
size_t dummy;
// It's an error to write after closed.
rv = client_ssl_->Write(block, sizeof(block), &dummy, NULL);
ASSERT_EQ(rtc::SR_ERROR, rv);
// But after closed read gives you EOS.
rv = client_ssl_->Read(block, sizeof(block), &dummy, NULL);
ASSERT_EQ(rtc::SR_EOS, rv);
};
// Test a handshake with a bogus peer digest
TEST_P(SSLStreamAdapterTestTLS, TestTLSBogusDigest) {
SetPeerIdentitiesByDigest(false);
TestHandshake(false);
};
// Test moving a bunch of data
// Basic tests: DTLS
// Test that we can make a handshake work
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSConnect) {
MAYBE_SKIP_TEST(HaveDtls);
TestHandshake();
};
// Test that we can make a handshake work if the first packet in
// each direction is lost. This gives us predictable loss
// rather than having to tune random
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSConnectWithLostFirstPacket) {
MAYBE_SKIP_TEST(HaveDtls);
SetLoseFirstPacket(true);
TestHandshake();
};
// Test a handshake with loss and delay
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSConnectWithLostFirstPacketDelay2s) {
MAYBE_SKIP_TEST(HaveDtls);
SetLoseFirstPacket(true);
SetDelay(2000);
SetHandshakeWait(20000);
TestHandshake();
};
// Test a handshake with small MTU
// Disabled due to https://code.google.com/p/webrtc/issues/detail?id=3910
TEST_P(SSLStreamAdapterTestDTLS, DISABLED_TestDTLSConnectWithSmallMtu) {
MAYBE_SKIP_TEST(HaveDtls);
SetMtu(700);
SetHandshakeWait(20000);
TestHandshake();
};
// Test transfer -- trivial
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSTransfer) {
MAYBE_SKIP_TEST(HaveDtls);
TestHandshake();
TestTransfer(100);
};
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSTransferWithLoss) {
MAYBE_SKIP_TEST(HaveDtls);
TestHandshake();
SetLoss(10);
TestTransfer(100);
};
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSTransferWithDamage) {
MAYBE_SKIP_TEST(HaveDtls);
SetDamage(); // Must be called first because first packet
// write happens at end of handshake.
TestHandshake();
TestTransfer(100);
};
// Test DTLS-SRTP with all high ciphers
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSSrtpHigh) {
MAYBE_SKIP_TEST(HaveDtlsSrtp);
std::vector<int> high;
high.push_back(rtc::SRTP_AES128_CM_SHA1_80);
SetDtlsSrtpCryptoSuites(high, true);
SetDtlsSrtpCryptoSuites(high, false);
TestHandshake();
int client_cipher;
ASSERT_TRUE(GetDtlsSrtpCryptoSuite(true, &client_cipher));
int server_cipher;
ASSERT_TRUE(GetDtlsSrtpCryptoSuite(false, &server_cipher));
ASSERT_EQ(client_cipher, server_cipher);
ASSERT_EQ(client_cipher, rtc::SRTP_AES128_CM_SHA1_80);
};
// Test DTLS-SRTP with all low ciphers
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSSrtpLow) {
MAYBE_SKIP_TEST(HaveDtlsSrtp);
std::vector<int> low;
low.push_back(rtc::SRTP_AES128_CM_SHA1_32);
SetDtlsSrtpCryptoSuites(low, true);
SetDtlsSrtpCryptoSuites(low, false);
TestHandshake();
int client_cipher;
ASSERT_TRUE(GetDtlsSrtpCryptoSuite(true, &client_cipher));
int server_cipher;
ASSERT_TRUE(GetDtlsSrtpCryptoSuite(false, &server_cipher));
ASSERT_EQ(client_cipher, server_cipher);
ASSERT_EQ(client_cipher, rtc::SRTP_AES128_CM_SHA1_32);
};
// Test DTLS-SRTP with a mismatch -- should not converge
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSSrtpHighLow) {
MAYBE_SKIP_TEST(HaveDtlsSrtp);
std::vector<int> high;
high.push_back(rtc::SRTP_AES128_CM_SHA1_80);
std::vector<int> low;
low.push_back(rtc::SRTP_AES128_CM_SHA1_32);
SetDtlsSrtpCryptoSuites(high, true);
SetDtlsSrtpCryptoSuites(low, false);
TestHandshake();
int client_cipher;
ASSERT_FALSE(GetDtlsSrtpCryptoSuite(true, &client_cipher));
int server_cipher;
ASSERT_FALSE(GetDtlsSrtpCryptoSuite(false, &server_cipher));
};
// Test DTLS-SRTP with each side being mixed -- should select high
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSSrtpMixed) {
MAYBE_SKIP_TEST(HaveDtlsSrtp);
std::vector<int> mixed;
mixed.push_back(rtc::SRTP_AES128_CM_SHA1_80);
mixed.push_back(rtc::SRTP_AES128_CM_SHA1_32);
SetDtlsSrtpCryptoSuites(mixed, true);
SetDtlsSrtpCryptoSuites(mixed, false);
TestHandshake();
int client_cipher;
ASSERT_TRUE(GetDtlsSrtpCryptoSuite(true, &client_cipher));
int server_cipher;
ASSERT_TRUE(GetDtlsSrtpCryptoSuite(false, &server_cipher));
ASSERT_EQ(client_cipher, server_cipher);
ASSERT_EQ(client_cipher, rtc::SRTP_AES128_CM_SHA1_80);
};
// Test an exporter
TEST_P(SSLStreamAdapterTestDTLS, TestDTLSExporter) {
MAYBE_SKIP_TEST(HaveExporter);
TestHandshake();
unsigned char client_out[20];
unsigned char server_out[20];
bool result;
result = ExportKeyingMaterial(kExporterLabel,
kExporterContext, kExporterContextLen,
true, true,
client_out, sizeof(client_out));
ASSERT_TRUE(result);
result = ExportKeyingMaterial(kExporterLabel,
kExporterContext, kExporterContextLen,
true, false,
server_out, sizeof(server_out));
ASSERT_TRUE(result);
ASSERT_TRUE(!memcmp(client_out, server_out, sizeof(client_out)));
}
// Test not yet valid certificates are not rejected.
TEST_P(SSLStreamAdapterTestDTLS, TestCertNotYetValid) {
MAYBE_SKIP_TEST(HaveDtls);
long one_day = 60 * 60 * 24;
// Make the certificates not valid until one day later.
ResetIdentitiesWithValidity(one_day, one_day);
TestHandshake();
}
// Test expired certificates are not rejected.
TEST_P(SSLStreamAdapterTestDTLS, TestCertExpired) {
MAYBE_SKIP_TEST(HaveDtls);
long one_day = 60 * 60 * 24;
// Make the certificates already expired.
ResetIdentitiesWithValidity(-one_day, -one_day);
TestHandshake();
}
// Test data transfer using certs created from strings.
TEST_F(SSLStreamAdapterTestDTLSFromPEMStrings, TestTransfer) {
MAYBE_SKIP_TEST(HaveDtls);
TestHandshake();
TestTransfer(100);
}
// Test getting the remote certificate.
TEST_F(SSLStreamAdapterTestDTLSFromPEMStrings, TestDTLSGetPeerCertificate) {
MAYBE_SKIP_TEST(HaveDtls);
// Peer certificates haven't been received yet.
ASSERT_FALSE(GetPeerCertificate(true));
ASSERT_FALSE(GetPeerCertificate(false));
TestHandshake();
// The client should have a peer certificate after the handshake.
std::unique_ptr<rtc::SSLCertificate> client_peer_cert =
GetPeerCertificate(true);
ASSERT_TRUE(client_peer_cert);
// It's not kCERT_PEM.
std::string client_peer_string = client_peer_cert->ToPEMString();
ASSERT_NE(kCERT_PEM, client_peer_string);
// It must not have a chain, because the test certs are self-signed.
ASSERT_FALSE(client_peer_cert->GetChain());
// The server should have a peer certificate after the handshake.
std::unique_ptr<rtc::SSLCertificate> server_peer_cert =
GetPeerCertificate(false);
ASSERT_TRUE(server_peer_cert);
// It's kCERT_PEM
ASSERT_EQ(kCERT_PEM, server_peer_cert->ToPEMString());
// It must not have a chain, because the test certs are self-signed.
ASSERT_FALSE(server_peer_cert->GetChain());
}
// Test getting the used DTLS ciphers.
// DTLS 1.2 enabled for neither client nor server -> DTLS 1.0 will be used.
TEST_P(SSLStreamAdapterTestDTLS, TestGetSslCipherSuite) {
MAYBE_SKIP_TEST(HaveDtls);
SetupProtocolVersions(rtc::SSL_PROTOCOL_DTLS_10, rtc::SSL_PROTOCOL_DTLS_10);
TestHandshake();
int client_cipher;
ASSERT_TRUE(GetSslCipherSuite(true, &client_cipher));
int server_cipher;
ASSERT_TRUE(GetSslCipherSuite(false, &server_cipher));
ASSERT_EQ(rtc::SSL_PROTOCOL_DTLS_10, GetSslVersion(true));
ASSERT_EQ(rtc::SSL_PROTOCOL_DTLS_10, GetSslVersion(false));
ASSERT_EQ(client_cipher, server_cipher);
ASSERT_TRUE(rtc::SSLStreamAdapter::IsAcceptableCipher(
server_cipher, ::testing::get<1>(GetParam()).type()));
}
// Test getting the used DTLS 1.2 ciphers.
// DTLS 1.2 enabled for client and server -> DTLS 1.2 will be used.
TEST_P(SSLStreamAdapterTestDTLS, TestGetSslCipherSuiteDtls12Both) {
MAYBE_SKIP_TEST(HaveDtls);
SetupProtocolVersions(rtc::SSL_PROTOCOL_DTLS_12, rtc::SSL_PROTOCOL_DTLS_12);
TestHandshake();
int client_cipher;
ASSERT_TRUE(GetSslCipherSuite(true, &client_cipher));
int server_cipher;
ASSERT_TRUE(GetSslCipherSuite(false, &server_cipher));
ASSERT_EQ(rtc::SSL_PROTOCOL_DTLS_12, GetSslVersion(true));
ASSERT_EQ(rtc::SSL_PROTOCOL_DTLS_12, GetSslVersion(false));
ASSERT_EQ(client_cipher, server_cipher);
ASSERT_TRUE(rtc::SSLStreamAdapter::IsAcceptableCipher(
server_cipher, ::testing::get<1>(GetParam()).type()));
}
// DTLS 1.2 enabled for client only -> DTLS 1.0 will be used.
TEST_P(SSLStreamAdapterTestDTLS, TestGetSslCipherSuiteDtls12Client) {
MAYBE_SKIP_TEST(HaveDtls);
SetupProtocolVersions(rtc::SSL_PROTOCOL_DTLS_10, rtc::SSL_PROTOCOL_DTLS_12);
TestHandshake();
int client_cipher;
ASSERT_TRUE(GetSslCipherSuite(true, &client_cipher));
int server_cipher;
ASSERT_TRUE(GetSslCipherSuite(false, &server_cipher));
ASSERT_EQ(rtc::SSL_PROTOCOL_DTLS_10, GetSslVersion(true));
ASSERT_EQ(rtc::SSL_PROTOCOL_DTLS_10, GetSslVersion(false));
ASSERT_EQ(client_cipher, server_cipher);
ASSERT_TRUE(rtc::SSLStreamAdapter::IsAcceptableCipher(
server_cipher, ::testing::get<1>(GetParam()).type()));
}
// DTLS 1.2 enabled for server only -> DTLS 1.0 will be used.
TEST_P(SSLStreamAdapterTestDTLS, TestGetSslCipherSuiteDtls12Server) {
MAYBE_SKIP_TEST(HaveDtls);
SetupProtocolVersions(rtc::SSL_PROTOCOL_DTLS_12, rtc::SSL_PROTOCOL_DTLS_10);
TestHandshake();
int client_cipher;
ASSERT_TRUE(GetSslCipherSuite(true, &client_cipher));
int server_cipher;
ASSERT_TRUE(GetSslCipherSuite(false, &server_cipher));
ASSERT_EQ(rtc::SSL_PROTOCOL_DTLS_10, GetSslVersion(true));
ASSERT_EQ(rtc::SSL_PROTOCOL_DTLS_10, GetSslVersion(false));
ASSERT_EQ(client_cipher, server_cipher);
ASSERT_TRUE(rtc::SSLStreamAdapter::IsAcceptableCipher(
server_cipher, ::testing::get<1>(GetParam()).type()));
}
// The RSA keysizes here might look strange, why not include the RFC's size
// 2048?. The reason is test case slowness; testing two sizes to exercise
// parametrization is sufficient.
INSTANTIATE_TEST_CASE_P(
SSLStreamAdapterTestsTLS,
SSLStreamAdapterTestTLS,
Combine(Values(rtc::KeyParams::RSA(1024, 65537),
rtc::KeyParams::RSA(1152, 65537),
rtc::KeyParams::ECDSA(rtc::EC_NIST_P256)),
Values(rtc::KeyParams::RSA(1024, 65537),
rtc::KeyParams::RSA(1152, 65537),
rtc::KeyParams::ECDSA(rtc::EC_NIST_P256))));
INSTANTIATE_TEST_CASE_P(
SSLStreamAdapterTestsDTLS,
SSLStreamAdapterTestDTLS,
Combine(Values(rtc::KeyParams::RSA(1024, 65537),
rtc::KeyParams::RSA(1152, 65537),
rtc::KeyParams::ECDSA(rtc::EC_NIST_P256)),
Values(rtc::KeyParams::RSA(1024, 65537),
rtc::KeyParams::RSA(1152, 65537),
rtc::KeyParams::ECDSA(rtc::EC_NIST_P256))));