826576315c
This import syncs to the widevine git repostiory change commit ab3e1e43642cf36900f55169597a33f222709fdb Change-Id: I3a6f1e2969e5fe7ed1ca12f90b0eb0a3b7899835
83 lines
1.9 KiB
C++
83 lines
1.9 KiB
C++
// Copyright 2012 Google Inc. All Rights Reserved.
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//
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// OEMCrypto Client - wrapper class for C-style OEMCrypto interface
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//
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#ifndef CDM_BASE_CRYPTO_ENGINE_H_
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#define CDM_BASE_CRYPTO_ENGINE_H_
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#include "crypto_session.h"
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#include "lock.h"
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#include "wv_cdm_types.h"
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namespace wvcdm {
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typedef std::map<CdmSessionId,CryptoSession*> CryptoSessionMap;
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class CryptoEngine {
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friend class CryptoSession;
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private:
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CryptoEngine();
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~CryptoEngine();
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public:
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// get an instance of Crypto engine
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static CryptoEngine* GetInstance();
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bool Init();
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bool Terminate();
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bool ValidateKeybox();
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CryptoSession* CreateSession(const CdmSessionId& session_id);
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CryptoSession* FindSession(const CdmSessionId& session_id);
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bool DestroySession(const CdmSessionId& session_id);
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bool DestroySessions();
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bool GetToken(std::string* token);
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typedef enum {
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kSecurityLevelL1,
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kSecurityLevelL2,
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kSecurityLevelL3,
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kSecurityLevelUnknown
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} SecurityLevel;
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SecurityLevel GetSecurityLevel();
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bool properties_valid() const { return properties_valid_; }
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bool oem_crypto_use_secure_buffers() const
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{ return oem_crypto_use_secure_buffers_; }
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bool oem_crypto_use_fifo() const { return oem_crypto_use_fifo_; }
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bool oem_crypto_use_userspace_buffers() const
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{ return oem_crypto_use_userspace_buffers_; }
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private:
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void DeleteInstance();
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static CryptoEngine* CreateSingleton();
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CryptoSession* FindSessionInternal(const CdmSessionId& session_id);
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static CryptoEngine* crypto_engine_;
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static Lock crypto_engine_lock_;
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bool initialized_;
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mutable Lock crypto_lock_;
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mutable Lock sessions_lock_;
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CryptoSessionMap sessions_;
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bool properties_valid_;
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bool oem_crypto_use_secure_buffers_;
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bool oem_crypto_use_fifo_;
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bool oem_crypto_use_userspace_buffers_;
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CORE_DISALLOW_COPY_AND_ASSIGN(CryptoEngine);
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};
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}; // namespace wvcdm
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#endif // CDM_BASE_CRYPTO_ENGINE_H_
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