Files
android/libwvdrmengine/src_hidl/WVDrmFactory.cpp
Jeff Tinker 8084bd5375 Implement isCryptoSchemeSupported in the Widevine drm plugin
Support overloaded isCryptoSchemeSupported method that
accepts a security level parameter

bug:110701831
test: cts media test cases, widevine integration tests, gts media tests

Change-Id: Ia84e40ff8d4f13fc06478e338e3238061e283dac
2019-01-30 07:10:10 +00:00

99 lines
2.8 KiB
C++

//
// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
// source code may only be used and distributed under the Widevine Master
// License Agreement.
//
//#define LOG_NDEBUG 0
#define LOG_TAG "WVCdm"
#include <utils/Log.h>
#include "WVDrmFactory.h"
#include "android-base/properties.h"
#include "wv_cdm_constants.h"
#include "wv_content_decryption_module.h"
#include "HidlTypes.h"
#include "WVCDMSingleton.h"
#include "WVDrmPlugin.h"
#include "WVUUID.h"
namespace wvdrm {
namespace hardware {
namespace drm {
namespace V1_2 {
namespace widevine {
WVGenericCryptoInterface WVDrmFactory::sOemCryptoInterface;
Return<bool> WVDrmFactory::isCryptoSchemeSupported(
const hidl_array<uint8_t, 16>& uuid) {
return isWidevineUUID(uuid.data());
}
Return<bool> WVDrmFactory::isCryptoSchemeSupported_1_2(
const hidl_array<uint8_t, 16>& uuid,
const hidl_string& initDataType,
SecurityLevel level) {
if (!isWidevineUUID(uuid.data()) || !isContentTypeSupported(initDataType)) {
return false;
}
if (wvcdm::WvContentDecryptionModule::IsSecurityLevelSupported(
wvcdm::kSecurityLevelL1)) {
if (wvcdm::WvContentDecryptionModule::IsAudio(initDataType)) {
if (level < SecurityLevel::HW_SECURE_ALL) {
return true;
}
} else {
return true;
}
}
return level <= SecurityLevel::SW_SECURE_DECODE;
}
Return<bool> WVDrmFactory::isContentTypeSupported(
const hidl_string& initDataType) {
return wvcdm::WvContentDecryptionModule::IsSupported(initDataType.c_str());
}
Return<void> WVDrmFactory::createPlugin(
const hidl_array<uint8_t, 16>& uuid,
const hidl_string& appPackageName,
createPlugin_cb _hidl_cb) {
WVDrmPlugin *plugin = NULL;
if (!isCryptoSchemeSupported(uuid.data())) {
ALOGE("Widevine Drm HAL: failed to create drm plugin, " \
"invalid crypto scheme");
_hidl_cb(Status::ERROR_DRM_CANNOT_HANDLE, plugin);
return Void();
}
plugin = new WVDrmPlugin(getCDM(), appPackageName.c_str(),
&sOemCryptoInterface, areSpoidsEnabled());
_hidl_cb(Status::OK, plugin);
return Void();
}
bool WVDrmFactory::areSpoidsEnabled() {
// Check what this device's first API level was.
int32_t firstApiLevel =
android::base::GetIntProperty<int32_t>("ro.product.first_api_level", 0);
if (firstApiLevel == 0) {
// First API Level is 0 on factory ROMs, but we can assume the current SDK
// version is the first if it's a factory ROM.
firstApiLevel =
android::base::GetIntProperty<int32_t>("ro.build.version.sdk", 0);
}
return firstApiLevel >= 26; // Android O
}
} // namespace widevine
} // namespace V1_2
} // namespace drm
} // namespace hardware
} // namespace wvdrm