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110 lines
3.3 KiB
110 lines
3.3 KiB
/*
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* Copyright (C) 2017 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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#ifndef CRYPTO_HAL_H_
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#define CRYPTO_HAL_H_
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#include <android/hardware/drm/1.0/ICryptoFactory.h>
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#include <android/hardware/drm/1.0/ICryptoPlugin.h>
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#include <android/hardware/drm/1.1/ICryptoFactory.h>
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#include <android/hardware/drm/1.2/ICryptoPlugin.h>
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#include <android/hardware/drm/1.4/ICryptoPlugin.h>
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#include <mediadrm/ICrypto.h>
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#include <utils/KeyedVector.h>
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#include <utils/threads.h>
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namespace drm = ::android::hardware::drm;
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using drm::V1_0::ICryptoFactory;
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using drm::V1_0::ICryptoPlugin;
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using drm::V1_0::SharedBuffer;
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using drm::V1_0::DestinationBuffer;
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using ::android::hardware::HidlMemory;
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class IMemoryHeap;
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namespace android {
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struct CryptoHal : public ICrypto {
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CryptoHal();
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virtual ~CryptoHal();
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virtual status_t initCheck() const;
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virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
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virtual status_t createPlugin(
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const uint8_t uuid[16], const void *data, size_t size);
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virtual status_t destroyPlugin();
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virtual bool requiresSecureDecoderComponent(
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const char *mime) const;
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virtual void notifyResolution(uint32_t width, uint32_t height);
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virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId);
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virtual ssize_t decrypt(const uint8_t key[16], const uint8_t iv[16],
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CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
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const ::SharedBuffer &source, size_t offset,
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const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
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const ::DestinationBuffer &destination,
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AString *errorDetailMsg);
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virtual int32_t setHeap(const sp<HidlMemory>& heap) {
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return setHeapBase(heap);
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}
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virtual void unsetHeap(int32_t seqNum) { clearHeapBase(seqNum); }
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virtual status_t getLogMessages(Vector<drm::V1_4::LogMessage> &logs) const;
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private:
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mutable Mutex mLock;
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const Vector<sp<ICryptoFactory>> mFactories;
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sp<ICryptoPlugin> mPlugin;
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sp<drm::V1_2::ICryptoPlugin> mPluginV1_2;
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/**
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* mInitCheck is:
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* NO_INIT if a plugin hasn't been created yet
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* ERROR_UNSUPPORTED if a plugin can't be created for the uuid
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* OK after a plugin has been created and mPlugin is valid
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*/
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status_t mInitCheck;
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KeyedVector<int32_t, size_t> mHeapSizes;
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int32_t mHeapSeqNum;
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Vector<sp<ICryptoFactory>> makeCryptoFactories();
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sp<ICryptoPlugin> makeCryptoPlugin(const sp<ICryptoFactory>& factory,
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const uint8_t uuid[16], const void *initData, size_t size);
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int32_t setHeapBase(const sp<HidlMemory>& heap);
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void clearHeapBase(int32_t seqNum);
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status_t checkSharedBuffer(const ::SharedBuffer& buffer);
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DISALLOW_EVIL_CONSTRUCTORS(CryptoHal);
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};
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} // namespace android
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#endif // CRYPTO_HAL_H_
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