am: e2e2d308df
Change-Id: I94d4cec05b76ade916cda42ae0b215f8272d7d51
gugelfrei
commit
fce5bc8f14
@ -0,0 +1,37 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (C) 2017 The Android Open Source Project
|
||||||
|
*
|
||||||
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "KeyBuffer.h"
|
||||||
|
|
||||||
|
#include <algorithm>
|
||||||
|
#include <cstring>
|
||||||
|
|
||||||
|
namespace android {
|
||||||
|
namespace vold {
|
||||||
|
|
||||||
|
KeyBuffer operator+(KeyBuffer&& lhs, const KeyBuffer& rhs) {
|
||||||
|
std::copy(rhs.begin(), rhs.end(), std::back_inserter(lhs));
|
||||||
|
return std::move(lhs);
|
||||||
|
}
|
||||||
|
|
||||||
|
KeyBuffer operator+(KeyBuffer&& lhs, const char* rhs) {
|
||||||
|
std::copy(rhs, rhs + strlen(rhs), std::back_inserter(lhs));
|
||||||
|
return std::move(lhs);
|
||||||
|
}
|
||||||
|
|
||||||
|
} // namespace vold
|
||||||
|
} // namespace android
|
||||||
|
|
@ -0,0 +1,63 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (C) 2017 The Android Open Source Project
|
||||||
|
*
|
||||||
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
* you may not use this file except in compliance with the License.
|
||||||
|
* You may obtain a copy of the License at
|
||||||
|
*
|
||||||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
*
|
||||||
|
* Unless required by applicable law or agreed to in writing, software
|
||||||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
* See the License for the specific language governing permissions and
|
||||||
|
* limitations under the License.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef ANDROID_VOLD_KEYBUFFER_H
|
||||||
|
#define ANDROID_VOLD_KEYBUFFER_H
|
||||||
|
|
||||||
|
#include <cstring>
|
||||||
|
#include <memory>
|
||||||
|
#include <vector>
|
||||||
|
|
||||||
|
namespace android {
|
||||||
|
namespace vold {
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Variant of memset() that should never be optimized away. Borrowed from keymaster code.
|
||||||
|
*/
|
||||||
|
#ifdef __clang__
|
||||||
|
#define OPTNONE __attribute__((optnone))
|
||||||
|
#else // not __clang__
|
||||||
|
#define OPTNONE __attribute__((optimize("O0")))
|
||||||
|
#endif // not __clang__
|
||||||
|
inline OPTNONE void* memset_s(void* s, int c, size_t n) {
|
||||||
|
if (!s)
|
||||||
|
return s;
|
||||||
|
return memset(s, c, n);
|
||||||
|
}
|
||||||
|
#undef OPTNONE
|
||||||
|
|
||||||
|
// Allocator that delegates useful work to standard one but zeroes data before deallocating.
|
||||||
|
class ZeroingAllocator : public std::allocator<char> {
|
||||||
|
public:
|
||||||
|
void deallocate(pointer p, size_type n)
|
||||||
|
{
|
||||||
|
memset_s(p, 0, n);
|
||||||
|
std::allocator<char>::deallocate(p, n);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// Char vector that zeroes memory when deallocating.
|
||||||
|
using KeyBuffer = std::vector<char, ZeroingAllocator>;
|
||||||
|
|
||||||
|
// Convenience methods to concatenate key buffers.
|
||||||
|
KeyBuffer operator+(KeyBuffer&& lhs, const KeyBuffer& rhs);
|
||||||
|
KeyBuffer operator+(KeyBuffer&& lhs, const char* rhs);
|
||||||
|
|
||||||
|
} // namespace vold
|
||||||
|
} // namespace android
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
Loading…
Reference in new issue