Files
android/libwvdrmengine/aidl_src/WVCryptoFactory.cpp
Edwin 96a8ccd4a1 Use aidl interface for Widevine service.
The interface is defined in
hardware/interfaces/drm/aidl(http://go/ag/15329852).

Test: build
  m android.hardware.drm-service.widevine -j128

Test: build_and_run_all_unit_tests.sh
  for hidl tests

Test: atest VtsAidlHalDrmTargetTest

Bug: 200055138
Bug: 170964303
Change-Id: If2f2a129914436ba5cef1c46f6cb9415e12c3d1c
2022-01-28 20:29:14 -08:00

66 lines
2.0 KiB
C++

//
// Copyright 2021 Google LLC. All Rights Reserved. This file and proprietary
// source code may only be used and distributed under the Widevine License
// Agreement.
//
//#define LOG_NDEBUG 0
#define LOG_TAG "WVCdm"
#include "WVCryptoFactory.h"
#include <android/binder_ibinder_platform.h>
#include <binder/IPCThreadState.h>
#include <utils/Log.h>
#include "Utils.h"
#include "WVCDMSingleton.h"
#include "WVCryptoPlugin.h"
#include "WVUUID.h"
namespace wvdrm {
namespace hardware {
namespace drm {
namespace widevine {
using ::aidl::android::hardware::drm::Status;
using ::aidl::android::hardware::drm::Uuid;
::ndk::ScopedAStatus WVCryptoFactory::isCryptoSchemeSupported(
const Uuid& in_uuid, bool* _aidl_return) {
*_aidl_return = isWidevineUUID(in_uuid.uuid.data());
return ::ndk::ScopedAStatus::ok();
}
::ndk::ScopedAStatus WVCryptoFactory::createPlugin(
const ::aidl::android::hardware::drm::Uuid& in_uuid,
const std::vector<uint8_t>& in_initData,
std::shared_ptr<::aidl::android::hardware::drm::ICryptoPlugin>*
_aidl_return) {
const auto& self = android::IPCThreadState::self();
const char* sid = self->getCallingSid();
sid = sid ? (std::strstr(sid, "mediadrmserver") ? sid : "app") : "nullptr";
ALOGI("[%s] calling %s", sid, __PRETTY_FUNCTION__);
bool isSupported = false;
isCryptoSchemeSupported(in_uuid, &isSupported);
if (!isSupported) {
ALOGE(
"Widevine Drm HAL: failed to create crypto plugin, "
"invalid crypto scheme");
*_aidl_return = nullptr;
return toNdkScopedAStatus(Status::ERROR_DRM_CANNOT_HANDLE);
}
std::shared_ptr<WVCryptoPlugin> plugin =
::ndk::SharedRefBase::make<WVCryptoPlugin>(in_initData.data(),
in_initData.size(), getCDM());
AIBinder_setRequestingSid(plugin->asBinder().get(), true);
*_aidl_return = std::move(plugin);
return toNdkScopedAStatus(Status::OK);
}
} // namespace widevine
} // namespace drm
} // namespace hardware
} // namespace wvdrm