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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <cstdlib>
#include <fstream>
#include <sstream>
#include "gtest_utils.h"
#include "tls_connect.h"
namespace nss_test {
static const std::string kKeylogFilePath = "keylog.txt";
static const std::string kKeylogBlankEnv = "SSLKEYLOGFILE=";
static const std::string kKeylogSetEnv = kKeylogBlankEnv + kKeylogFilePath;
extern "C" {
extern FILE* ssl_keylog_iob;
}
class KeyLogFileTestBase : public TlsConnectGeneric {
private:
std::string env_to_set_;
public:
virtual void CheckKeyLog() = 0;
KeyLogFileTestBase(std::string env) : env_to_set_(env) {}
void SetUp() override {
TlsConnectGeneric::SetUp();
// Remove previous results (if any).
(void)remove(kKeylogFilePath.c_str());
PR_SetEnv(env_to_set_.c_str());
}
void ConnectAndCheck() {
// This is a child process, ensure that error messages immediately
// propagate or else it will not be visible.
::testing::GTEST_FLAG(throw_on_failure) = true;
if (version_ == SSL_LIBRARY_VERSION_TLS_1_3) {
SetupForZeroRtt();
client_->Set0RttEnabled(true);
server_->Set0RttEnabled(true);
ExpectResumption(RESUME_TICKET);
ZeroRttSendReceive(true, true);
Handshake();
ExpectEarlyDataAccepted(true);
CheckConnected();
SendReceive();
} else {
Connect();
}
CheckKeyLog();
_exit(0);
}
};
class KeyLogFileTest : public KeyLogFileTestBase {
public:
KeyLogFileTest() : KeyLogFileTestBase(kKeylogSetEnv) {}
void CheckKeyLog() override {
std::ifstream f(kKeylogFilePath);
std::map<std::string, size_t> labels;
std::set<std::string> client_randoms;
for (std::string line; std::getline(f, line);) {
if (line[0] == '#') {
continue;
}
std::istringstream iss(line);
std::string label, client_random, secret;
iss >> label >> client_random >> secret;
ASSERT_EQ(64U, client_random.size());
client_randoms.insert(client_random);
labels[label]++;
}
if (version_ < SSL_LIBRARY_VERSION_TLS_1_3) {
ASSERT_EQ(1U, client_randoms.size());
} else {
/* two handshakes for 0-RTT */
ASSERT_EQ(2U, client_randoms.size());
}
// Every entry occurs twice (one log from server, one from client).
if (version_ < SSL_LIBRARY_VERSION_TLS_1_3) {
ASSERT_EQ(2U, labels["CLIENT_RANDOM"]);
} else {
ASSERT_EQ(2U, labels["CLIENT_EARLY_TRAFFIC_SECRET"]);
ASSERT_EQ(2U, labels["EARLY_EXPORTER_SECRET"]);
ASSERT_EQ(4U, labels["CLIENT_HANDSHAKE_TRAFFIC_SECRET"]);
ASSERT_EQ(4U, labels["SERVER_HANDSHAKE_TRAFFIC_SECRET"]);
ASSERT_EQ(4U, labels["CLIENT_TRAFFIC_SECRET_0"]);
ASSERT_EQ(4U, labels["SERVER_TRAFFIC_SECRET_0"]);
ASSERT_EQ(4U, labels["EXPORTER_SECRET"]);
}
}
};
// Tests are run in a separate process to ensure that NSS is not initialized yet
// and can process the SSLKEYLOGFILE environment variable.
TEST_P(KeyLogFileTest, KeyLogFile) {
testing::GTEST_FLAG(death_test_style) = "threadsafe";
ASSERT_EXIT(ConnectAndCheck(), ::testing::ExitedWithCode(0), "");
}
INSTANTIATE_TEST_CASE_P(
KeyLogFileDTLS12, KeyLogFileTest,
::testing::Combine(TlsConnectTestBase::kTlsVariantsDatagram,
TlsConnectTestBase::kTlsV11V12));
INSTANTIATE_TEST_CASE_P(
KeyLogFileTLS12, KeyLogFileTest,
::testing::Combine(TlsConnectTestBase::kTlsVariantsStream,
TlsConnectTestBase::kTlsV10ToV12));
#ifndef NSS_DISABLE_TLS_1_3
INSTANTIATE_TEST_CASE_P(
KeyLogFileTLS13, KeyLogFileTest,
::testing::Combine(TlsConnectTestBase::kTlsVariantsStream,
TlsConnectTestBase::kTlsV13));
#endif
class KeyLogFileUnsetTest : public KeyLogFileTestBase {
public:
KeyLogFileUnsetTest() : KeyLogFileTestBase(kKeylogBlankEnv) {}
void CheckKeyLog() override {
std::ifstream f(kKeylogFilePath);
EXPECT_FALSE(f.good());
EXPECT_EQ(nullptr, ssl_keylog_iob);
}
};
TEST_P(KeyLogFileUnsetTest, KeyLogFile) {
testing::GTEST_FLAG(death_test_style) = "threadsafe";
ASSERT_EXIT(ConnectAndCheck(), ::testing::ExitedWithCode(0), "");
}
INSTANTIATE_TEST_CASE_P(
KeyLogFileDTLS12, KeyLogFileUnsetTest,
::testing::Combine(TlsConnectTestBase::kTlsVariantsDatagram,
TlsConnectTestBase::kTlsV11V12));
INSTANTIATE_TEST_CASE_P(
KeyLogFileTLS12, KeyLogFileUnsetTest,
::testing::Combine(TlsConnectTestBase::kTlsVariantsStream,
TlsConnectTestBase::kTlsV10ToV12));
#ifndef NSS_DISABLE_TLS_1_3
INSTANTIATE_TEST_CASE_P(
KeyLogFileTLS13, KeyLogFileUnsetTest,
::testing::Combine(TlsConnectTestBase::kTlsVariantsStream,
TlsConnectTestBase::kTlsV13));
#endif
} // namespace nss_test
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