1 files changed, 60 insertions, 0 deletions
diff --git a/security/nss/gtests/ssl_gtest/tls_protect.h b/security/nss/gtests/ssl_gtest/tls_protect.h
new file mode 100644
index 0000000000..d7ea2aa128
--- /dev/null
+++ b/security/nss/gtests/ssl_gtest/tls_protect.h
@@ -0,0 +1,60 @@
+/* -*- 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/. */
+
+#ifndef tls_protection_h_
+#define tls_protection_h_
+
+#include <cstdint>
+#include <memory>
+
+#include "pk11pub.h"
+#include "sslt.h"
+#include "sslexp.h"
+
+#include "databuffer.h"
+#include "scoped_ptrs_ssl.h"
+
+namespace nss_test {
+class TlsRecordHeader;
+
+// Our analog of ssl3CipherSpec
+class TlsCipherSpec {
+ public:
+  TlsCipherSpec(bool dtls, uint16_t epoc);
+  bool SetKeys(SSLCipherSuiteInfo* cipherinfo, PK11SymKey* secret);
+
+  bool Protect(const TlsRecordHeader& header, const DataBuffer& plaintext,
+               DataBuffer* ciphertext, TlsRecordHeader* out_header);
+  bool Unprotect(const TlsRecordHeader& header, const DataBuffer& ciphertext,
+                 DataBuffer* plaintext, TlsRecordHeader* out_header);
+
+  uint16_t epoch() const { return epoch_; }
+  uint64_t next_in_seqno() const { return in_seqno_; }
+  void RecordUnprotected(uint64_t seqno) {
+    // Reordering happens, so don't let this go backwards.
+    in_seqno_ = (std::max)(in_seqno_, seqno + 1);
+  }
+  uint64_t next_out_seqno() { return out_seqno_; }
+  void RecordProtected() { out_seqno_++; }
+
+  void RecordDropped() { record_dropped_ = true; }
+  bool record_dropped() const { return record_dropped_; }
+
+  bool is_protected() const { return aead_ != nullptr; }
+
+ private:
+  bool dtls_;
+  uint16_t epoch_;
+  uint64_t in_seqno_;
+  uint64_t out_seqno_;
+  bool record_dropped_ = false;
+  ScopedSSLAeadContext aead_;
+  ScopedSSLMaskingContext mask_;
+};
+
+}  // namespace nss_test
+
+#endif