Robert Shih
5 years ago
committed by
Android (Google) Code Review
commit
bb4a40fb13
@ -1,181 +0,0 @@
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/*
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**
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** Copyright 2013, 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_NDEBUG 0
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#define LOG_TAG "IDrmClient"
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#include <utils/Errors.h>
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#include <utils/Log.h>
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#include <utils/RefBase.h>
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#include <binder/IInterface.h>
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#include <binder/Parcel.h>
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#include <hidl/HidlSupport.h>
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#include <media/IMediaPlayerClient.h>
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#include <mediadrm/DrmUtils.h>
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#include <mediadrm/IDrmClient.h>
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#include <cstddef>
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#include <cstdint>
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#include <vector>
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namespace android {
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enum {
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SEND_EVENT = IBinder::FIRST_CALL_TRANSACTION,
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SEND_EXPIRATION_UPDATE,
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SEND_KEYS_CHANGE,
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SEND_SESSION_LOST_STATE,
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};
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namespace {
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hardware::hidl_vec<uint8_t> ReadByteArray(const Parcel &obj, status_t *err)
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{
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int32_t len = obj.readInt32();
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hardware::hidl_vec<uint8_t> ret;
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if (len < 0) {
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ALOGE("Invalid array len");
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*err = BAD_VALUE;
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return ret;
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}
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ret.resize(static_cast<size_t>(len));
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*err = obj.read(ret.data(), ret.size());
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return ret;
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}
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}
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class BpDrmClient: public BpInterface<IDrmClient>
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{
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template <typename F>
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void notify(uint32_t code, F fillParcel) {
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Parcel obj, reply;
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obj.writeInterfaceToken(IDrmClient::getInterfaceDescriptor());
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fillParcel(obj);
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remote()->transact(code, obj, &reply, IBinder::FLAG_ONEWAY);
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}
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public:
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explicit BpDrmClient(const sp<IBinder>& impl)
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: BpInterface<IDrmClient>(impl)
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{
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}
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virtual void sendEvent(
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DrmPlugin::EventType eventType,
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const hardware::hidl_vec<uint8_t> &sessionId,
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const hardware::hidl_vec<uint8_t> &data)
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{
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auto fillParcel = [&] (Parcel &p) {
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DrmUtils::WriteEventToParcel(p, eventType, sessionId, data);
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};
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notify(SEND_EVENT, fillParcel);
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}
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virtual void sendExpirationUpdate(
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const hardware::hidl_vec<uint8_t> &sessionId,
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int64_t expiryTimeInMS)
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{
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auto fillParcel = [&] (Parcel &p) {
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DrmUtils::WriteExpirationUpdateToParcel(p, sessionId, expiryTimeInMS);
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};
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notify(SEND_EXPIRATION_UPDATE, fillParcel);
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}
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virtual void sendKeysChange(
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const hardware::hidl_vec<uint8_t> &sessionId,
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const std::vector<DrmKeyStatus> &keyStatusList,
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bool hasNewUsableKey)
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{
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auto fillParcel = [&] (Parcel &p) {
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DrmUtils::WriteKeysChange(p, sessionId, keyStatusList, hasNewUsableKey);
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};
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notify(SEND_KEYS_CHANGE, fillParcel);
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}
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virtual void sendSessionLostState(
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const hardware::hidl_vec<uint8_t> &sessionId)
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{
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auto fillParcel = [&] (Parcel &p) {
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DrmUtils::WriteByteArray(p, sessionId);
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};
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notify(SEND_SESSION_LOST_STATE, fillParcel);
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}
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};
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IMPLEMENT_META_INTERFACE(DrmClient, "android.media.IDrmClient");
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// ----------------------------------------------------------------------
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status_t BnDrmClient::onTransact(
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uint32_t code, const Parcel& obj, Parcel* reply, uint32_t flags)
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{
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CHECK_INTERFACE(IDrmClient, obj, reply);
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status_t err = NO_ERROR;
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hardware::hidl_vec<uint8_t> sessionId(ReadByteArray(obj, &err));
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if (err != NO_ERROR) {
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ALOGE("Failed to read session id, error=%d", err);
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return err;
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}
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switch (code) {
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case SEND_EVENT: {
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hardware::hidl_vec<uint8_t> data(ReadByteArray(obj, &err));
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int eventType = obj.readInt32();
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if (err == NO_ERROR) {
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sendEvent(static_cast<DrmPlugin::EventType>(eventType), sessionId, data);
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}
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return err;
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} break;
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case SEND_EXPIRATION_UPDATE: {
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int64_t expiryTimeInMS = obj.readInt64();
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sendExpirationUpdate(sessionId, expiryTimeInMS);
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return NO_ERROR;
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} break;
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case SEND_KEYS_CHANGE: {
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// ...
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int32_t n = obj.readInt32();
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if (n < 0) {
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return BAD_VALUE;
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}
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std::vector<DrmKeyStatus> keyStatusList;
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for (int32_t i = 0; i < n; ++i) {
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hardware::hidl_vec<uint8_t> keyId(ReadByteArray(obj, &err));
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if (err != NO_ERROR) {
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return err;
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}
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int32_t type = obj.readInt32();
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if (type < 0) {
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return BAD_VALUE;
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}
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keyStatusList.push_back({static_cast<uint32_t>(type), keyId});
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}
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int32_t hasNewUsableKey = obj.readInt32();
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sendKeysChange(sessionId, keyStatusList, hasNewUsableKey);
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return NO_ERROR;
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} break;
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case SEND_SESSION_LOST_STATE: {
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sendSessionLostState(sessionId);
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, obj, reply, flags);
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}
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}
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} // namespace android
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