Files
android/libwvdrmengine/oemcrypto/test/fuzz_tests/oemcrypto_load_license_fuzz.cc
Ian Benz 57b391c8b9 Fix bugs impacting fuzzing coverage
- Update ConvertDataToValidEnum to not use FuzzedDataProvider since it
  causes unexpected parsing results.
- Add OEMCryptoLicenseAPIFuzz::LoadLicenseWithGenericCryptoKeys so that
  generic crypto fuzz tests can load appropriate keys.
- Remove custom mutator from oemcrypto_generic_verify_fuzz because it
  provides minimal additional coverage.
- Refresh affected corpus files.

Merged from https://widevine-internal-review.googlesource.com/168557
Merged from https://widevine-internal-review.googlesource.com/171191
Merged from https://widevine-internal-review.googlesource.com/172170
Merged from https://widevine-internal-review.googlesource.com/172250

Change-Id: Ie676a36cbf4c12bdda9566fad3590a7b69168d9c
2024-01-26 15:15:36 -08:00

30 lines
1.1 KiB
C++

// Copyright 2020 Google LLC. All Rights Reserved. This file and proprietary
// source code may only be used and distributed under the Widevine
// License Agreement.
#include "oemcrypto_fuzz_helper.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
wvoec::RedirectStdoutToFile();
if (size < sizeof(ODK_ParsedLicense) + sizeof(wvoec::MessageData)) {
return 0;
}
wvoec::OEMCryptoLicenseAPIFuzz license_api_fuzz;
license_api_fuzz.Initialize();
license_api_fuzz.license_messages().SignAndVerifyRequest();
// Interpreting input fuzz data as unencrypted (core_response + license
// message data) from license server.
license_api_fuzz.license_messages().InjectFuzzedResponseData(data, size);
// Convert OEMCrypto_LicenseType in core_response to a valid enum value.
wvoec::ConvertDataToValidEnum(
OEMCrypto_LicenseType_MaxValue,
license_api_fuzz.license_messages().core_response().license_type);
license_api_fuzz.license_messages().EncryptAndSignResponse();
license_api_fuzz.license_messages().LoadResponse();
license_api_fuzz.Terminate();
return 0;
}