60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef tls_protection_h_
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#define tls_protection_h_
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#include <cstdint>
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#include <memory>
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#include "pk11pub.h"
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#include "sslt.h"
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#include "sslexp.h"
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#include "databuffer.h"
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#include "scoped_ptrs_ssl.h"
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namespace nss_test {
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class TlsRecordHeader;
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// Our analog of ssl3CipherSpec
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class TlsCipherSpec {
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public:
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TlsCipherSpec(bool dtls, uint16_t epoc);
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bool SetKeys(SSLCipherSuiteInfo* cipherinfo, PK11SymKey* secret);
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bool Protect(const TlsRecordHeader& header, const DataBuffer& plaintext,
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DataBuffer* ciphertext, TlsRecordHeader* out_header);
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bool Unprotect(const TlsRecordHeader& header, const DataBuffer& ciphertext,
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DataBuffer* plaintext, TlsRecordHeader* out_header);
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uint16_t epoch() const { return epoch_; }
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uint64_t next_in_seqno() const { return in_seqno_; }
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void RecordUnprotected(uint64_t seqno) {
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// Reordering happens, so don't let this go backwards.
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in_seqno_ = (std::max)(in_seqno_, seqno + 1);
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}
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uint64_t next_out_seqno() { return out_seqno_; }
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void RecordProtected() { out_seqno_++; }
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void RecordDropped() { record_dropped_ = true; }
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bool record_dropped() const { return record_dropped_; }
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bool is_protected() const { return aead_ != nullptr; }
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private:
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bool dtls_;
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uint16_t epoch_;
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uint64_t in_seqno_;
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uint64_t out_seqno_;
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bool record_dropped_ = false;
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ScopedSSLAeadContext aead_;
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ScopedSSLMaskingContext mask_;
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};
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} // namespace nss_test
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#endif
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