5f209e6980
Note that this version does not have Widevine Provisioning 4.0 support. It is only suitable for device upgrades. A new patch with provisioning 4.0 support will be made later.
96 lines
3.0 KiB
C++
96 lines
3.0 KiB
C++
// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine Master
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// License Agreement.
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#include "widevine_media_cas.h"
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#include <memory>
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#include "cas_util.h"
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#include "crypto_session.h"
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#include "utils/Errors.h"
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#include "widevine_media_cas_plugin.h"
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using android::BAD_VALUE;
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using android::OK;
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// Widevine Technologies CA system ID.
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static constexpr int32_t kWidevineCAID = 0x4AD4;
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// New Widevine CAS IDs 0x56C0 to 0x56C9 (all inclusive).
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static constexpr int32_t kWidevineNewCasIdLowerBound = 0x56C0;
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static constexpr int32_t kWidevineNewCasIdUpperBound = 0x56C9;
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// Total number of supported Widevine CAS ids.
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static constexpr size_t kWidevineCasIdCount = 11;
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static constexpr char kName[] = "WidevineCas";
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// Implements extern android::CasFactory *createCasFactory() entry point.
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CasFactory* createCasFactory() {
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return wvcas::WidevineCasFactory::createCasFactory();
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}
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namespace wvcas {
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/************************ Cas factory implementation *********************/
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// The widevine cas implementation of the cas plugin factory.
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WidevineCasFactory* WidevineCasFactory::createCasFactory() {
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return new WidevineCasFactory();
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}
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bool WidevineCasFactory::isSystemIdSupported(int32_t CA_system_id) const {
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return (CA_system_id == kWidevineCAID) ||
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(CA_system_id >= kWidevineNewCasIdLowerBound &&
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CA_system_id <= kWidevineNewCasIdUpperBound);
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}
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status_t WidevineCasFactory::queryPlugins(
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std::vector<CasPluginDescriptor>* descriptors) const {
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if (nullptr == descriptors) {
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return BAD_VALUE;
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}
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descriptors->clear();
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descriptors->reserve(kWidevineCasIdCount);
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descriptors->push_back({kWidevineCAID, String8(kName)});
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for (int32_t new_id = kWidevineNewCasIdLowerBound;
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new_id <= kWidevineNewCasIdUpperBound; ++new_id) {
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descriptors->push_back({new_id, String8(kName)});
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}
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return OK;
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}
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status_t WidevineCasFactory::createPlugin(int32_t CA_system_id, void* appData,
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CasPluginCallback callback,
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CasPlugin** plugin) {
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if (nullptr == plugin || !isSystemIdSupported(CA_system_id)) {
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return BAD_VALUE;
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}
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std::unique_ptr<WidevineCasPlugin> new_plugin =
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make_unique<WidevineCasPlugin>(appData, callback);
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status_t status = new_plugin->initialize();
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if (status != OK) {
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return status;
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}
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*plugin = new_plugin.release();
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return OK;
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}
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status_t WidevineCasFactory::createPlugin(int32_t CA_system_id, void* appData,
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CasPluginCallbackExt callback,
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CasPlugin** plugin) {
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if (nullptr == plugin || !isSystemIdSupported(CA_system_id)) {
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return BAD_VALUE;
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}
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std::unique_ptr<WidevineCasPlugin> new_plugin =
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make_unique<WidevineCasPlugin>(appData, callback);
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status_t status = new_plugin->initialize();
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if (status != OK) {
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return status;
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}
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*plugin = new_plugin.release();
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return OK;
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}
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} // namespace wvcas
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