100 lines
4.3 KiB
C++
100 lines
4.3 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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#define LOG_TAG "DrmRkpAdapter"
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#include "DrmRkpAdapter.h"
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#include <aidl/android/hardware/drm/IDrmFactory.h>
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#include <aidl/android/hardware/drm/IDrmPlugin.h>
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#include <aidl/android/hardware/security/keymint/BnRemotelyProvisionedComponent.h>
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#include <android/binder_manager.h>
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#include <log/log.h>
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#include "DrmRemotelyProvisionedComponent.h"
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namespace android::mediadrm {
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using CryptoSchemes = ::aidl::android::hardware::drm::CryptoSchemes;
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using IDrmFactory = ::aidl::android::hardware::drm::IDrmFactory;
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using IDrmPlugin = ::aidl::android::hardware::drm::IDrmPlugin;
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std::map<std::string, std::shared_ptr<IRemotelyProvisionedComponent>>
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getDrmRemotelyProvisionedComponents() {
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std::map<std::string, std::shared_ptr<IRemotelyProvisionedComponent>> comps;
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AServiceManager_forEachDeclaredInstance(
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IDrmFactory::descriptor, &comps, [](const char* instance, void* context) {
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auto fullName = std::string(IDrmFactory::descriptor) + "/" + std::string(instance);
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auto factory = IDrmFactory::fromBinder(
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::ndk::SpAIBinder(AServiceManager_waitForService(fullName.c_str())));
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if (factory == nullptr) {
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ALOGE("not found IDrmFactory. Instance name:[%s]", fullName.c_str());
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return;
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}
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ALOGI("found IDrmFactory. Instance name:[%s]", fullName.c_str());
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CryptoSchemes schemes{};
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auto status = factory->getSupportedCryptoSchemes(&schemes);
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if (!status.isOk()) {
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ALOGE("getSupportedCryptoSchemes failed.Detail: [%s].",
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status.getDescription().c_str());
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return;
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}
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if (schemes.uuids.empty()) {
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ALOGW("IDrmFactory Instance [%s] has empty supported schemes",
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fullName.c_str());
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return;
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}
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std::shared_ptr<IDrmPlugin> mDrm;
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status = factory->createDrmPlugin(schemes.uuids[0], "DrmRkpAdapter", &mDrm);
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if (!status.isOk()) {
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ALOGE("createDrmPlugin failed.Detail: [%s].", status.getDescription().c_str());
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return;
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}
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std::string drmVendor;
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status = mDrm->getPropertyString("vendor", &drmVendor);
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if (!status.isOk()) {
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ALOGE("mDrm->getPropertyString(\"vendor\") failed.Detail: [%s].",
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status.getDescription().c_str());
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return;
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}
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std::string drmDesc;
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status = mDrm->getPropertyString("description", &drmDesc);
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if (!status.isOk()) {
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ALOGE("mDrm->getPropertyString(\"description\") failed.Detail: [%s].",
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status.getDescription().c_str());
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return;
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}
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std::vector<uint8_t> bcc;
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status = mDrm->getPropertyByteArray("bootCertificateChain", &bcc);
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if (!status.isOk()) {
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ALOGE("mDrm->getPropertyByteArray(\"bootCertificateChain\") failed."
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"Detail: [%s].",
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status.getDescription().c_str());
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return;
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}
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std::string compName(instance);
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auto comps = static_cast<
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std::map<std::string, std::shared_ptr<IRemotelyProvisionedComponent>>*>(
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context);
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(*comps)[compName] = ::ndk::SharedRefBase::make<DrmRemotelyProvisionedComponent>(
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mDrm, drmVendor, drmDesc, bcc);
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});
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return comps;
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}
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} // namespace android::mediadrm
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