mock_decrypter.cc 2.5 KB

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  1. // Copyright 2017 The Chromium Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file.
  4. #include "net/quic/mock_decrypter.h"
  5. #include <limits>
  6. #include "net/third_party/quiche/src/quiche/quic/core/quic_utils.h"
  7. #include "net/third_party/quiche/src/quiche/quic/platform/api/quic_bug_tracker.h"
  8. using quic::DiversificationNonce;
  9. using quic::Perspective;
  10. using quic::QuicPacketNumber;
  11. namespace net {
  12. namespace {
  13. const size_t kPaddingSize = 12;
  14. } // namespace
  15. MockDecrypter::MockDecrypter(Perspective perspective) {}
  16. bool MockDecrypter::SetKey(absl::string_view key) {
  17. return key.empty();
  18. }
  19. bool MockDecrypter::SetNoncePrefix(absl::string_view nonce_prefix) {
  20. return nonce_prefix.empty();
  21. }
  22. bool MockDecrypter::SetIV(absl::string_view iv) {
  23. return iv.empty();
  24. }
  25. bool MockDecrypter::SetHeaderProtectionKey(absl::string_view key) {
  26. return key.empty();
  27. }
  28. size_t MockDecrypter::GetKeySize() const {
  29. return 0;
  30. }
  31. size_t MockDecrypter::GetIVSize() const {
  32. return 0;
  33. }
  34. size_t MockDecrypter::GetNoncePrefixSize() const {
  35. return 0;
  36. }
  37. bool MockDecrypter::SetPreliminaryKey(absl::string_view key) {
  38. LOG(DFATAL) << "Should not be called";
  39. return false;
  40. }
  41. bool MockDecrypter::SetDiversificationNonce(const DiversificationNonce& nonce) {
  42. LOG(DFATAL) << "Should not be called";
  43. return true;
  44. }
  45. bool MockDecrypter::DecryptPacket(uint64_t /*packet_number*/,
  46. absl::string_view associated_data,
  47. absl::string_view ciphertext,
  48. char* output,
  49. size_t* output_length,
  50. size_t max_output_length) {
  51. if (ciphertext.length() < kPaddingSize) {
  52. return false;
  53. }
  54. size_t plaintext_size = ciphertext.length() - kPaddingSize;
  55. if (plaintext_size > max_output_length) {
  56. return false;
  57. }
  58. memcpy(output, ciphertext.data(), plaintext_size);
  59. *output_length = plaintext_size;
  60. return true;
  61. }
  62. std::string MockDecrypter::GenerateHeaderProtectionMask(
  63. quic::QuicDataReader* sample_reader) {
  64. return std::string(5, 0);
  65. }
  66. uint32_t MockDecrypter::cipher_id() const {
  67. return 0;
  68. }
  69. quic::QuicPacketCount MockDecrypter::GetIntegrityLimit() const {
  70. return std::numeric_limits<quic::QuicPacketCount>::max();
  71. }
  72. absl::string_view MockDecrypter::GetKey() const {
  73. return absl::string_view();
  74. }
  75. absl::string_view MockDecrypter::GetNoncePrefix() const {
  76. return absl::string_view();
  77. }
  78. } // namespace net