зеркало из https://github.com/mozilla/gecko-dev.git
89 строки
2.0 KiB
C++
89 строки
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GMPEncryptedBufferDataImpl.h"
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#include "mozilla/gmp/GMPTypes.h"
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namespace mozilla {
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namespace gmp {
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GMPEncryptedBufferDataImpl::GMPEncryptedBufferDataImpl(const CryptoSample& aCrypto)
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: mKeyId(aCrypto.key)
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, mIV(aCrypto.iv)
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, mClearBytes(aCrypto.plain_sizes)
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, mCipherBytes(aCrypto.encrypted_sizes)
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{
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}
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GMPEncryptedBufferDataImpl::GMPEncryptedBufferDataImpl(const GMPDecryptionData& aData)
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{
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mKeyId = aData.mKeyId();
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mIV = aData.mIV();
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mClearBytes = aData.mClearBytes();
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mCipherBytes = aData.mCipherBytes();
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MOZ_ASSERT(mClearBytes.Length() == mCipherBytes.Length());
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}
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GMPEncryptedBufferDataImpl::~GMPEncryptedBufferDataImpl()
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{
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}
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void
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GMPEncryptedBufferDataImpl::RelinquishData(GMPDecryptionData& aData)
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{
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aData.mKeyId() = Move(mKeyId);
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aData.mIV() = Move(mIV);
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aData.mClearBytes() = Move(mClearBytes);
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aData.mCipherBytes() = Move(mCipherBytes);
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}
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const uint8_t*
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GMPEncryptedBufferDataImpl::KeyId() const
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{
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return mKeyId.Elements();
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}
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uint32_t
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GMPEncryptedBufferDataImpl::KeyIdSize() const
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{
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return mKeyId.Length();
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}
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const uint8_t*
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GMPEncryptedBufferDataImpl::IV() const
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{
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return mIV.Elements();
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}
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uint32_t
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GMPEncryptedBufferDataImpl::IVSize() const
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{
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return mIV.Length();
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}
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const uint16_t*
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GMPEncryptedBufferDataImpl::ClearBytes() const
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{
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return mClearBytes.Elements();
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}
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const uint32_t*
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GMPEncryptedBufferDataImpl::CipherBytes() const
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{
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return mCipherBytes.Elements();
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}
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uint32_t
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GMPEncryptedBufferDataImpl::NumSubsamples() const
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{
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MOZ_ASSERT(mClearBytes.Length() == mCipherBytes.Length());
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// Return the min of the two, to ensure there's not chance of array index
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// out-of-bounds shenanigans.
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return std::min<uint32_t>(mClearBytes.Length(), mCipherBytes.Length());
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}
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} // namespace gmp
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} // namespace mozilla
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