platform_system_vold/Devmapper.h
San Mehat d9a4e35861 vold: Bugfixes & cleanups
- Fix issue where container-names > 64 bytes were getting truncated in the
    kernel. lo_name is only 64 bytes in length, so we now hash the container
    id via md5
  - Add 'dump' command to dump loop and devicemapper status
  - Add 'debug' command to enable more detailed logging at runtime
  - Log vold IPC arguments (minus encryption keys)
  - Fix premature return from Loop::lookupActive() and friends

Change-Id: I0e833261a445ce9dc1a8187e5501d27daba1ca76
Signed-off-by: San Mehat <san@google.com>
2010-03-13 16:42:19 -08:00

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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 SocketClient;
class Devmapper {
public:
static int create(const char *name, const char *loopFile, const char *key,
unsigned int numSectors, char *buffer, size_t len);
static int destroy(const char *name);
static int lookupActive(const char *name, char *buffer, size_t len);
static int dumpState(SocketClient *c);
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