platform_system_vold/Devmapper.h
San Mehat b78a32c1d5 vold: Add encrypted ASEC support via devmapper
- Supports up to 4096 containers
- Keys are now implemented - specifying a key of 'none' means no encryption.
  Otherwise, the key must be a string of 32 characters

Signed-off-by: San Mehat <san@google.com>
2010-01-11 08:12:52 -08:00

35 lines
1.2 KiB
C++

/*
* Copyright (C) 2008 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 _DEVMAPPER_H
#define _DEVMAPPER_H
#include <unistd.h>
#include <linux/dm-ioctl.h>
class Devmapper {
public:
static int create(const char *name, const char *loopFile, const char *key, int sizeMb,
char *buffer, size_t len);
static int destroy(const char *name);
static int lookupActive(const char *name, char *buffer, size_t len);
private:
static void *_align(void *ptr, unsigned int a);
static void ioctlInit(struct dm_ioctl *io, size_t data_size,
const char *name, unsigned flags);
};
#endif