1 files changed, 118 insertions, 0 deletions
diff --git a/security/nss/gtests/ssl_gtest/ssl_keylog_unittest.cc b/security/nss/gtests/ssl_gtest/ssl_keylog_unittest.cc
new file mode 100644
index 000000000..322b64837
--- /dev/null
+++ b/security/nss/gtests/ssl_gtest/ssl_keylog_unittest.cc
@@ -0,0 +1,118 @@
+/* -*- 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/. */
+
+#ifdef NSS_ALLOW_SSLKEYLOGFILE
+
+#include <cstdlib>
+#include <fstream>
+#include <sstream>
+
+#include "gtest_utils.h"
+#include "tls_connect.h"
+
+namespace nss_test {
+
+static const std::string keylog_file_path = "keylog.txt";
+static const std::string keylog_env = "SSLKEYLOGFILE=" + keylog_file_path;
+
+class KeyLogFileTest : public TlsConnectGeneric {
+ public:
+  void SetUp() override {
+    TlsConnectGeneric::SetUp();
+    // Remove previous results (if any).
+    (void)remove(keylog_file_path.c_str());
+    PR_SetEnv(keylog_env.c_str());
+  }
+
+  void CheckKeyLog() {
+    std::ifstream f(keylog_file_path);
+    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"]);
+    }
+  }
+
+  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);
+  }
+};
+
+// 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
+
+}  // namespace nss_test
+
+#endif  // NSS_ALLOW_SSLKEYLOGFILE