c39f453c59
Implemented google c++ code style changes for cdm_engine_fuzzer exec/s: 323 Test: ./cdm_engine_fuzzer Bug: 312374669 Change-Id: Iddaeab285d591d77f16c10e62a88b1af3f8af7c5
508 lines
21 KiB
C++
508 lines
21 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include <cdm_engine.h>
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#include <cdm_engine_factory.h>
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#include <fuzzer/FuzzedDataProvider.h>
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#include <stdlib.h>
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#include <wv_cdm_constants.h>
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#include <wv_cdm_event_listener.h>
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#include <wv_cdm_types.h>
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#include <fstream>
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#include <iostream>
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#include <string>
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#include "vendor_widevine_fuzz_helper.h"
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const int32_t kMinByte = 0;
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const int32_t kMaxByte = 256;
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const int32_t kMinEnum = 0;
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const int32_t kMaxEnum = 4;
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const int32_t kMinValue = 0;
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const int32_t kMaxValue = 1;
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const int32_t kMinKey = 10;
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const int32_t kMaxKey = 1000;
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const int32_t kMinSize = 1;
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const int32_t kMaxSize = 100;
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const char *kKeySystem = "widevine";
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const char *kKeySetIdPrefix = "ksid";
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const char *kEmptyString = "";
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const std::string kUsageFilePrefixL1 = "/data/vendor/mediadrm/IDM0/L1/";
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const std::string kUsageFilePrefixL3 = "/data/vendor/mediadrm/IDM0/L3/";
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const std::string kCertFile = kUsageFilePrefixL3 + "cert.bin";
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const std::string kCertFile1 = kUsageFilePrefixL3 + "cert1.bin";
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static constexpr int32_t kMaxRuns = 500;
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using namespace wvutil;
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using namespace wvcdm::metrics;
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using namespace drm_metrics;
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using namespace wvcdm;
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std::string kQueryToken[] = {QUERY_KEY_SECURITY_LEVEL,
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QUERY_KEY_PLAY_ALLOWED,
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QUERY_KEY_CURRENT_HDCP_LEVEL,
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QUERY_KEY_MAX_HDCP_LEVEL,
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QUERY_KEY_USAGE_SUPPORT,
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QUERY_KEY_NUMBER_OF_OPEN_SESSIONS,
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QUERY_KEY_MAX_NUMBER_OF_SESSIONS,
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QUERY_KEY_OEMCRYPTO_API_VERSION,
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QUERY_KEY_CURRENT_SRM_VERSION,
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QUERY_KEY_SRM_UPDATE_SUPPORT,
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QUERY_KEY_WVCDM_VERSION,
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QUERY_KEY_RESOURCE_RATING_TIER,
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QUERY_KEY_OEMCRYPTO_BUILD_INFORMATION,
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QUERY_KEY_DECRYPT_HASH_SUPPORT,
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QUERY_KEY_PROVISIONING_MODEL,
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QUERY_KEY_MAX_USAGE_TABLE_ENTRIES,
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QUERY_KEY_OEMCRYPTO_API_MINOR_VERSION,
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QUERY_KEY_ANALOG_OUTPUT_CAPABILITIES,
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QUERY_KEY_CAN_DISABLE_ANALOG_OUTPUT,
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QUERY_KEY_WATERMARKING_SUPPORT,
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QUERY_KEY_PRODUCTION_READY,
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QUERY_KEY_SYSTEM_ID,
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QUERY_KEY_DEBUG_BOOT_CERTIFICATE_CHAIN,
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QUERY_KEY_DEVICE_ID,
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QUERY_KEY_PROVISIONING_ID};
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std::string kInitType[] = {ISO_BMFF_VIDEO_MIME_TYPE, WEBM_VIDEO_MIME_TYPE,
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HLS_INIT_DATA_FORMAT, CENC_INIT_DATA_FORMAT,
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ISO_BMFF_AUDIO_MIME_TYPE, WEBM_AUDIO_MIME_TYPE,
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WEBM_INIT_DATA_FORMAT};
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class FuzzWvCdmEventListener : public WvCdmEventListener {
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public:
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void OnSessionRenewalNeeded(const CdmSessionId & /*session_id*/) {}
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void OnSessionKeysChange(const CdmSessionId & /*session_id*/,
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const CdmKeyStatusMap & /*keys_status*/,
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bool /*has_new_usable_key*/) {}
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void OnExpirationUpdate(const CdmSessionId & /*session_id*/,
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int64_t /*new_expiry_time_seconds*/) {}
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};
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class CdmEngineFuzzer {
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public:
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CdmEngineFuzzer(const uint8_t *data, size_t size) : fdp_(data, size){};
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void Process();
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void Init(CdmEngine *cdm_engine);
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void CreateUsageFiles(std::string app_id_);
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std::vector<std::string> CreateVector(bool enable_key_set_id);
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private:
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FuzzedDataProvider fdp_;
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std::ofstream out_cert_file_1_;
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std::ofstream out_cert_file_2_;
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std::ofstream out_usage_file_1_;
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std::ofstream out_usage_file_2_;
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std::string app_id_;
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std::string key_id_;
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std::string sign_;
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std::string default_url_;
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std::unique_ptr<wvutil::FileSystem> file_system_ =
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std::make_unique<wvutil::FileSystem>();
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std::unique_ptr<FuzzCdmClientPropertySet> fuzz_cdm_client_property_ =
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std::make_unique<FuzzCdmClientPropertySet>(&fdp_);
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CdmSessionId session_id_;
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CdmKeySystem key_system_;
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CdmKeySetId key_set_id_;
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};
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void CdmEngineFuzzer::CreateUsageFiles(std::string app_id_) {
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/**
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* These files are being fetched by the GetUsageInfo() &
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* RemoveAllUsageInfo() APIs, since they were not created
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* by any other API calls in the fuzzer, we are creating them.
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*/
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DeviceFiles device_files(file_system_.get());
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std::string file_name = device_files.GetUsageInfoFileName(app_id_);
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std::string create_file_1 = kUsageFilePrefixL1 + file_name;
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std::string create_file_2 = kUsageFilePrefixL3 + file_name;
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out_usage_file_1_.open(create_file_1.c_str());
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out_usage_file_2_.open(create_file_2.c_str());
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}
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std::vector<std::string> CdmEngineFuzzer::CreateVector(bool enable_key_set_id) {
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int32_t size = fdp_.ConsumeIntegralInRange(kMinSize, kMaxSize);
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std::vector<std::string> vector;
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for (int i = 0; i < size; ++i) {
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vector.push_back(enable_key_set_id ? key_set_id_
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: fdp_.ConsumeRandomLengthString(kMaxByte));
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}
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return vector;
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}
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void CdmEngineFuzzer::Init(CdmEngine *cdm_engine) {
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app_id_ =
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std::to_string(fdp_.ConsumeIntegralInRange<uint32_t>(kMinSize, kMaxSize));
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key_id_ =
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std::to_string(fdp_.ConsumeIntegralInRange<uint32_t>(kMinSize, kMaxSize));
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sign_ = fdp_.ConsumeRandomLengthString(kMaxByte);
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key_system_ = fdp_.ConsumeBool() ? kKeySystem
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: fdp_.ConsumeRandomLengthString(kMaxByte);
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FuzzWvCdmEventListener fuzz_wv_cdm_event_listener;
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cdm_engine->OpenSession(
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key_system_,
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fdp_.ConsumeBool() ? fuzz_cdm_client_property_.get() : nullptr,
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fdp_.ConsumeBool() ? &fuzz_wv_cdm_event_listener : nullptr, &session_id_);
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std::string request;
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default_url_ = fdp_.ConsumeRandomLengthString(kMaxByte);
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cdm_engine->GetProvisioningRequest(
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(CdmCertificateType)fdp_.ConsumeIntegralInRange<int32_t>(kMinValue,
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kMaxValue),
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fdp_.ConsumeRandomLengthString(kMaxByte) /* cert_authority */,
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fdp_.ConsumeRandomLengthString(kMaxByte) /* service_certificate */,
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(RequestedSecurityLevel)fdp_.ConsumeIntegralInRange<uint32_t>(kMinValue,
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kMaxValue),
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fdp_.ConsumeBool() ? &request : nullptr, &default_url_);
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std::string cert;
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std::string wrapped_key;
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CdmProvisioningResponse response_message =
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fdp_.ConsumeRandomLengthString(kMaxByte);
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cdm_engine->HandleProvisioningResponse(
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response_message,
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(RequestedSecurityLevel)fdp_.ConsumeIntegralInRange<uint32_t>(kMinValue,
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kMaxValue),
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fdp_.ConsumeBool() ? &cert : nullptr,
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fdp_.ConsumeBool() ? &wrapped_key : nullptr);
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CdmAppParameterMap app_parameters;
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app_parameters.insert({fdp_.ConsumeRandomLengthString(kMaxByte),
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fdp_.ConsumeRandomLengthString(kMaxByte)});
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CdmInitData data = fdp_.ConsumeRandomLengthString(kMaxByte);
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const std::string oec_version =
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std::to_string(fdp_.ConsumeIntegralInRange<uint32_t>(kMinSize, kMaxSize));
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InitializationData init_data(fdp_.PickValueInArray<std::string>(kInitType),
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data, oec_version);
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key_set_id_ =
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kKeySetIdPrefix +
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std::to_string(fdp_.ConsumeIntegralInRange<uint32_t>(kMinKey, kMaxKey));
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CdmLicenseType generate_lic_type =
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static_cast<CdmLicenseType>(fdp_.ConsumeIntegralInRange(
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static_cast<int32_t>(CdmLicenseType::kLicenseTypeOffline),
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static_cast<int32_t>(CdmLicenseType::kLicenseTypeEmbeddedKeyData)));
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CdmKeyRequest key_request;
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key_request.message = fdp_.ConsumeRandomLengthString(kMaxByte);
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key_request.type = static_cast<CdmKeyRequestType>(fdp_.ConsumeIntegralInRange(
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static_cast<uint32_t>(CdmKeyRequestType::kKeyRequestTypeUnknown),
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static_cast<uint32_t>(CdmKeyRequestType::kKeyRequestTypeUpdate)));
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key_request.url = fdp_.ConsumeBool()
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? default_url_
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: fdp_.ConsumeRandomLengthString(kMaxByte);
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cdm_engine->GenerateKeyRequest(session_id_,
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fdp_.ConsumeBool() ? key_set_id_ : kEmptyString,
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init_data, generate_lic_type, app_parameters,
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fdp_.ConsumeBool() ? &key_request : nullptr);
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CdmLicenseType add_lic_type =
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static_cast<CdmLicenseType>(fdp_.ConsumeIntegralInRange(
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static_cast<int32_t>(CdmLicenseType::kLicenseTypeOffline),
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static_cast<int32_t>(CdmLicenseType::kLicenseTypeEmbeddedKeyData)));
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CdmKeyResponse key_data =
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std::to_string(fdp_.ConsumeIntegralInRange<uint32_t>(kMinKey, kMaxKey));
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cdm_engine->AddKey(session_id_, fdp_.ConsumeBool() ? key_data : kEmptyString,
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&add_lic_type, &key_set_id_);
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}
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void CdmEngineFuzzer::Process() {
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CdmEngine *cdm_engine = CdmEngineFactory::CreateCdmEngine(file_system_.get());
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CdmEngineFuzzer::Init(cdm_engine);
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int32_t runs = kMaxRuns;
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/* Limited the while loop to prevent a timeout caused by the
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/* CryptoSession constructor, which took time to initialize
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/* OEMCrypto in each iteration.*/
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while (fdp_.remaining_bytes() > 0 && --runs) {
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auto invoke_cdm_engine_API = fdp_.PickValueInArray<
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const std::function<void()>>({
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[&]() { cdm_engine->OnTimerEvent(); },
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[&]() { cdm_engine->IsOpenSession(session_id_); },
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[&]() { cdm_engine->SetDefaultOtaKeyboxFallbackDurationRules(); },
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[&]() { cdm_engine->SetFastOtaKeyboxFallbackDurationRules(); },
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[&]() {
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cdm_engine->OpenSession(
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key_system_, nullptr /* property_set */,
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fdp_.ConsumeRandomLengthString(kMaxByte) /* forced_session_id */,
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nullptr /* event_listener */);
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},
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[&]() {
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cdm_engine->StoreAtscLicense(
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static_cast<RequestedSecurityLevel>(fdp_.ConsumeIntegralInRange(
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static_cast<int32_t>(RequestedSecurityLevel::kLevelDefault),
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static_cast<int32_t>(RequestedSecurityLevel::kLevel3))),
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key_set_id_,
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fdp_.ConsumeRandomLengthString(
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kMaxByte) /* serialized_license_data */);
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},
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[&]() { cdm_engine->RestoreKey(session_id_, key_set_id_); },
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[&]() {
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cdm_engine->SetSessionServiceCertificate(
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session_id_, fdp_.ConsumeRandomLengthString(
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kMaxByte) /* service_certificate */);
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},
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[&]() {
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std::string query_response;
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cdm_engine->QueryStatus(
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static_cast<RequestedSecurityLevel>(fdp_.ConsumeIntegralInRange(
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static_cast<int32_t>(RequestedSecurityLevel::kLevelDefault),
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static_cast<int32_t>(RequestedSecurityLevel::kLevel3))),
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fdp_.PickValueInArray<std::string>(kQueryToken),
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fdp_.ConsumeBool() ? &query_response : nullptr);
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},
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[&]() {
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CdmQueryMap query_response;
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cdm_engine->QuerySessionStatus(session_id_, &query_response);
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},
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[&]() {
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CdmKeyRequest key_request;
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key_request.message = fdp_.ConsumeRandomLengthString(kMaxByte);
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key_request.type =
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static_cast<CdmKeyRequestType>(fdp_.ConsumeIntegralInRange(
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static_cast<uint32_t>(
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CdmKeyRequestType::kKeyRequestTypeUnknown),
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static_cast<uint32_t>(
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CdmKeyRequestType::kKeyRequestTypeUpdate)));
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key_request.url = default_url_;
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cdm_engine->GenerateRenewalRequest(
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session_id_, fdp_.ConsumeBool() ? &key_request : nullptr);
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CdmKeyResponse key_data =
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fdp_.ConsumeBool()
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? std::to_string(
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fdp_.ConsumeIntegralInRange<uint32_t>(kMinKey, kMaxKey))
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: kEmptyString;
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cdm_engine->RenewKey(session_id_, key_data);
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},
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[&]() { cdm_engine->IsReleaseSession(session_id_); },
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[&]() { cdm_engine->IsOfflineSession(session_id_); },
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[&]() {
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out_cert_file_1_.open(kCertFile.c_str());
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out_cert_file_2_.open(kCertFile1.c_str());
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cdm_engine->RemoveOfflineLicense(
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key_set_id_,
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static_cast<CdmSecurityLevel>(fdp_.ConsumeIntegralInRange(
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static_cast<int32_t>(
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CdmSecurityLevel::kSecurityLevelUninitialized),
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static_cast<int32_t>(
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CdmSecurityLevel::kSecurityLevelUnknown))));
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},
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[&]() {
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CdmQueryMap query_response;
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cdm_engine->QueryKeyStatus(session_id_, &query_response);
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},
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[&]() {
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cdm_engine->IsSecurityLevelSupported(
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(CdmSecurityLevel)fdp_.ConsumeIntegralInRange<int32_t>(kMinEnum,
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kMaxEnum));
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},
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[&]() {
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CdmKeyAllowedUsage key_usage;
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cdm_engine->QueryKeyAllowedUsage(
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session_id_, key_id_, fdp_.ConsumeBool() ? &key_usage : nullptr);
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},
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[&]() {
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CdmKeyAllowedUsage key_usage;
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cdm_engine->QueryKeyAllowedUsage(
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key_id_, fdp_.ConsumeBool() ? &key_usage : nullptr);
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},
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[&]() {
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CdmQueryMap query_response;
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cdm_engine->QueryOemCryptoSessionId(session_id_, &query_response);
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},
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[&]() {
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std::vector<std::string> key_set_ids = CreateVector(true);
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cdm_engine->ListStoredLicenses(
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(CdmSecurityLevel)fdp_.ConsumeIntegralInRange<int32_t>(kMinEnum,
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kMaxEnum),
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fdp_.ConsumeBool() ? &key_set_ids : nullptr);
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},
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[&]() {
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std::vector<std::string> key_set_ids = CreateVector(true);
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std::vector<std::string> provider_session_tokens = CreateVector(false);
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cdm_engine->ListUsageIds(
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app_id_,
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(CdmSecurityLevel)fdp_.ConsumeIntegralInRange<int32_t>(kMinEnum,
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kMaxEnum),
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fdp_.ConsumeBool() ? &key_set_ids : nullptr,
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fdp_.ConsumeBool() ? &provider_session_tokens : nullptr);
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},
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[&]() {
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cdm_engine->DeleteUsageRecord(
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app_id_,
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(CdmSecurityLevel)fdp_.ConsumeIntegralInRange<int32_t>(kMinEnum,
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kMaxEnum),
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key_set_id_);
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},
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[&]() {
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CdmOfflineLicenseState license_state =
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static_cast<CdmOfflineLicenseState>(fdp_.ConsumeIntegralInRange(
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static_cast<int32_t>(
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CdmOfflineLicenseState::kLicenseStateActive),
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static_cast<int32_t>(
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CdmOfflineLicenseState::kLicenseStateUnknown)));
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cdm_engine->GetOfflineLicenseState(
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key_set_id_,
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(CdmSecurityLevel)fdp_.ConsumeIntegralInRange<int32_t>(kMinEnum,
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kMaxEnum),
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fdp_.ConsumeBool() ? &license_state : nullptr);
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},
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[&]() {
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cdm_engine->SetPlaybackId(session_id_,
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fdp_.ConsumeRandomLengthString(kMaxByte));
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},
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[&]() {
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CdmUsageReport usage_report;
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CreateUsageFiles(app_id_);
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int error_detail;
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cdm_engine->GetUsageInfo(app_id_,
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fdp_.ConsumeBool() ? &error_detail : nullptr,
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fdp_.ConsumeBool() ? &usage_report : nullptr);
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},
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[&]() {
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CreateUsageFiles(app_id_);
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cdm_engine->RemoveAllUsageInfo(app_id_);
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},
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[&]() {
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cdm_engine->ReleaseUsageInfo(
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fdp_.ConsumeRandomLengthString(kMaxByte) /* message */);
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},
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[&]() {
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std::string release_message = fdp_.ConsumeRandomLengthString(kMaxByte);
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cdm_engine->LoadUsageSession(
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key_set_id_, fdp_.ConsumeBool() ? &release_message : nullptr);
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},
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[&]() {
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CdmDecryptionParametersV16 parameters(key_id_);
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cdm_engine->DecryptV16(session_id_, parameters);
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},
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[&]() {
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std::string out = fdp_.ConsumeRandomLengthString(kMaxByte);
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std::string iv_GE = fdp_.ConsumeRandomLengthString(kMaxByte);
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cdm_engine->GenericEncrypt(
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session_id_, fdp_.ConsumeRandomLengthString(kMaxByte), key_id_,
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iv_GE,
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(CdmEncryptionAlgorithm)fdp_.ConsumeIntegralInRange<int32_t>(
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kMinValue, kMaxValue),
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fdp_.ConsumeBool() ? &out : nullptr);
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},
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[&]() {
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std::string out = fdp_.ConsumeRandomLengthString(kMaxByte);
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std::string iv_GE = fdp_.ConsumeRandomLengthString(kMaxByte);
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cdm_engine->GenericDecrypt(
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session_id_, fdp_.ConsumeRandomLengthString(kMaxByte), key_id_,
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iv_GE,
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(CdmEncryptionAlgorithm)fdp_.ConsumeIntegralInRange<int32_t>(
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kMinValue, kMaxValue),
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fdp_.ConsumeBool() ? &out : nullptr);
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},
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[&]() {
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cdm_engine->GenericSign(
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session_id_, fdp_.ConsumeRandomLengthString(kMaxByte), key_id_,
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|
(CdmSigningAlgorithm)fdp_.ConsumeIntegralInRange<int32_t>(
|
|
kMinValue, kMaxValue),
|
|
fdp_.ConsumeBool() ? &sign_ : nullptr);
|
|
|
|
cdm_engine->GenericVerify(
|
|
session_id_, fdp_.ConsumeRandomLengthString(kMaxByte), key_id_,
|
|
(CdmSigningAlgorithm)fdp_.ConsumeIntegralInRange<int32_t>(
|
|
kMinValue, kMaxValue),
|
|
sign_);
|
|
},
|
|
[&]() {
|
|
cdm_engine->SetDebugIgnoreKeyboxCount(
|
|
fdp_.ConsumeIntegral<uint32_t>());
|
|
},
|
|
[&]() {
|
|
std::string sess_id = fdp_.ConsumeRandomLengthString(kMaxByte);
|
|
std::string hash;
|
|
std::string hash_string =
|
|
fdp_.ConsumeRandomLengthString(kMaxByte) + "," +
|
|
fdp_.ConsumeRandomLengthString(kMaxByte) + "," +
|
|
fdp_.ConsumeRandomLengthString(kMaxByte);
|
|
uint32_t frame_num = fdp_.ConsumeIntegral<uint32_t>();
|
|
cdm_engine->ParseDecryptHashString(
|
|
hash_string, fdp_.ConsumeBool() ? &sess_id : nullptr,
|
|
fdp_.ConsumeBool() ? &frame_num : nullptr,
|
|
fdp_.ConsumeBool() ? &hash : nullptr);
|
|
|
|
cdm_engine->SetDecryptHash(session_id_,
|
|
fdp_.ConsumeIntegral<uint32_t>(), hash);
|
|
|
|
std::string hash_error;
|
|
cdm_engine->GetDecryptHashError(
|
|
session_id_, fdp_.ConsumeBool() ? &hash_error : nullptr);
|
|
},
|
|
[&]() {
|
|
std::string session_id = fdp_.ConsumeRandomLengthString(kMaxByte);
|
|
cdm_engine->FindSessionForKey(
|
|
key_id_, fdp_.ConsumeBool() ? &session_id : nullptr);
|
|
},
|
|
[&]() {
|
|
cdm_engine->NotifyResolution(
|
|
session_id_, fdp_.ConsumeIntegral<uint32_t>() /* width */,
|
|
fdp_.ConsumeIntegral<uint32_t>() /* height */);
|
|
},
|
|
[&]() {
|
|
cdm_engine->ValidateServiceCertificate(
|
|
fdp_.ConsumeRandomLengthString(kMaxByte) /* cert */);
|
|
},
|
|
[&]() {
|
|
CdmUsageReport usage_report;
|
|
CreateUsageFiles(app_id_);
|
|
CdmSecureStopId ssid = fdp_.ConsumeRandomLengthString(kMaxByte);
|
|
int error_detail = fdp_.ConsumeIntegral<int32_t>();
|
|
cdm_engine->GetUsageInfo(app_id_, ssid,
|
|
fdp_.ConsumeBool() ? &error_detail : nullptr,
|
|
fdp_.ConsumeBool() ? &usage_report : nullptr);
|
|
},
|
|
[&]() {
|
|
CdmSecureStopId ssid = fdp_.ConsumeRandomLengthString(kMaxByte);
|
|
cdm_engine->RemoveUsageInfo(app_id_, ssid);
|
|
},
|
|
[&]() { cdm_engine->RemoveLicense(session_id_); },
|
|
[&]() { cdm_engine->IsKeyLoaded(key_id_); },
|
|
});
|
|
invoke_cdm_engine_API();
|
|
}
|
|
|
|
cdm_engine->Unprovision((CdmSecurityLevel)fdp_.ConsumeIntegralInRange<int32_t>(
|
|
kMinEnum, kMaxEnum));
|
|
|
|
cdm_engine->RemoveKeys(session_id_);
|
|
|
|
out_cert_file_1_.close();
|
|
out_cert_file_2_.close();
|
|
out_usage_file_1_.close();
|
|
out_usage_file_2_.close();
|
|
|
|
delete cdm_engine;
|
|
}
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
|
|
CdmEngineFuzzer cdm_engine_fuzzer(data, size);
|
|
cdm_engine_fuzzer.Process();
|
|
return 0;
|
|
}
|