Devmapper.h revision b78a32c1d5eeb243bdac0eaf18effb1897f1ee67
1b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat/* 2b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * Copyright (C) 2008 The Android Open Source Project 3b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * 4b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * Licensed under the Apache License, Version 2.0 (the "License"); 5b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * you may not use this file except in compliance with the License. 6b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * You may obtain a copy of the License at 7b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * 8b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * http://www.apache.org/licenses/LICENSE-2.0 9b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * 10b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * Unless required by applicable law or agreed to in writing, software 11b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * distributed under the License is distributed on an "AS IS" BASIS, 12b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * See the License for the specific language governing permissions and 14b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat * limitations under the License. 15b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat */ 16b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 17b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat#ifndef _DEVMAPPER_H 18b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat#define _DEVMAPPER_H 19b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 20b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat#include <unistd.h> 21b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat#include <linux/dm-ioctl.h> 22b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 23b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehatclass Devmapper { 24b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehatpublic: 25b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat static int create(const char *name, const char *loopFile, const char *key, int sizeMb, 26b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat char *buffer, size_t len); 27b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat static int destroy(const char *name); 28b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat static int lookupActive(const char *name, char *buffer, size_t len); 29b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehatprivate: 30b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat static void *_align(void *ptr, unsigned int a); 31b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat static void ioctlInit(struct dm_ioctl *io, size_t data_size, 32b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat const char *name, unsigned flags); 33b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat}; 34b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 35b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat#endif 36