53fe55cb72
- Remove OEMCrypto state changes hidden in constructors and destructors. - Use composition instead of inheritance to structure classes. - Avoid calling non-trivial destructors for objects with static lifetime. Merged from https://widevine-internal-review.googlesource.com/168497 Merged from https://widevine-internal-review.googlesource.com/171170 Merged from https://widevine-internal-review.googlesource.com/171171 Merged from https://widevine-internal-review.googlesource.com/171870 Change-Id: I20476a7b1132d11f011b8650ec01e3c2dc3fc0e8
66 lines
2.4 KiB
C++
66 lines
2.4 KiB
C++
// Copyright 2020 Google LLC. All Rights Reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine
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// License Agreement.
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#include <vector>
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#include "FuzzedDataProvider.h"
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#include "OEMCryptoCENC.h"
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#include "oemcrypto_fuzz_helper.h"
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#include "oemcrypto_fuzz_structs.h"
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namespace {
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// Avoid calling non-trivial destructor.
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wvoec::OEMCryptoLicenseAPIFuzz& license_api_fuzz =
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*new wvoec::OEMCryptoLicenseAPIFuzz;
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} // namespace
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extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv) {
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wvoec::RedirectStdoutToFile();
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license_api_fuzz.Initialize();
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license_api_fuzz.LoadLicense();
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return 0;
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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// Split data using separator.
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const std::vector<wvoec::FuzzedData> inputs =
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wvoec::SplitFuzzedData(data, size);
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if (inputs.size() < 2) {
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return 0;
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}
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wvoec::OEMCrypto_Generic_Api_Fuzz fuzzed_structure;
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if (inputs[0].size < sizeof(fuzzed_structure)) {
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return 0;
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}
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// Copy OEMCrypto_Generic_Api_Fuzz from input data.
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FuzzedDataProvider fuzzed_data(inputs[0].data, inputs[0].size);
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fuzzed_data.ConsumeData(&fuzzed_structure, sizeof(fuzzed_structure));
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wvoec::ConvertDataToValidEnum(OEMCrypto_CipherMode_MaxValue,
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&fuzzed_structure.cipher_mode);
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wvoec::ConvertDataToValidEnum(OEMCrypto_Algorithm_MaxValue,
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&fuzzed_structure.algorithm);
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// Copy iv from input data.
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const std::vector<uint8_t> iv = fuzzed_data.ConsumeRemainingBytes<uint8_t>();
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// Initialize clear and encrypted buffers.
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const std::vector<uint8_t> clear_buffer(inputs[1].data,
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inputs[1].data + inputs[1].size);
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std::vector<uint8_t> encrypted_buffer(clear_buffer.size());
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wvoec::Session& session = license_api_fuzz.session();
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std::vector<uint8_t> key_handle;
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wvoec::GetKeyHandleIntoVector(session.session_id(),
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session.license().keys[0].key_id,
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session.license().keys[0].key_id_length,
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fuzzed_structure.cipher_mode, key_handle);
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OEMCrypto_Generic_Encrypt(key_handle.data(), key_handle.size(),
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clear_buffer.data(), clear_buffer.size(), iv.data(),
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fuzzed_structure.algorithm,
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encrypted_buffer.data());
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return 0;
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}
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