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Diffstat (limited to 'third_party/libwebrtc/api/test/fake_frame_decryptor.h')
-rw-r--r-- | third_party/libwebrtc/api/test/fake_frame_decryptor.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/test/fake_frame_decryptor.h b/third_party/libwebrtc/api/test/fake_frame_decryptor.h new file mode 100644 index 0000000000..783bc805c4 --- /dev/null +++ b/third_party/libwebrtc/api/test/fake_frame_decryptor.h @@ -0,0 +1,70 @@ +/* + * Copyright 2018 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef API_TEST_FAKE_FRAME_DECRYPTOR_H_ +#define API_TEST_FAKE_FRAME_DECRYPTOR_H_ + +#include <stddef.h> +#include <stdint.h> + +#include <vector> + +#include "api/array_view.h" +#include "api/crypto/frame_decryptor_interface.h" +#include "api/media_types.h" + +namespace webrtc { + +// The FakeFrameDecryptor is a TEST ONLY fake implementation of the +// FrameDecryptorInterface. It is constructed with a simple single digit key and +// a fixed postfix byte. This is just to validate that the core code works +// as expected. +class FakeFrameDecryptor : public FrameDecryptorInterface { + public: + // Provide a key (0,255) and some postfix byte (0,255) this should match the + // byte you expect from the FakeFrameEncryptor. + explicit FakeFrameDecryptor(uint8_t fake_key = 0xAA, + uint8_t expected_postfix_byte = 255); + // Fake decryption that just xors the payload with the 1 byte key and checks + // the postfix byte. This will always fail if fail_decryption_ is set to true. + Result Decrypt(cricket::MediaType media_type, + const std::vector<uint32_t>& csrcs, + rtc::ArrayView<const uint8_t> additional_data, + rtc::ArrayView<const uint8_t> encrypted_frame, + rtc::ArrayView<uint8_t> frame) override; + // Always returns 1 less than the size of the encrypted frame. + size_t GetMaxPlaintextByteSize(cricket::MediaType media_type, + size_t encrypted_frame_size) override; + // Sets the fake key to use for encryption. + void SetFakeKey(uint8_t fake_key); + // Returns the fake key used for encryption. + uint8_t GetFakeKey() const; + // Set the Postfix byte that is expected in the encrypted payload. + void SetExpectedPostfixByte(uint8_t expected_postfix_byte); + // Returns the postfix byte that will be checked for in the encrypted payload. + uint8_t GetExpectedPostfixByte() const; + // If set to true will force all encryption to fail. + void SetFailDecryption(bool fail_decryption); + // Simple error codes for tests to validate against. + enum class FakeDecryptStatus : int { + OK = 0, + FORCED_FAILURE = 1, + INVALID_POSTFIX = 2 + }; + + private: + uint8_t fake_key_ = 0; + uint8_t expected_postfix_byte_ = 0; + bool fail_decryption_ = false; +}; + +} // namespace webrtc + +#endif // API_TEST_FAKE_FRAME_DECRYPTOR_H_ |