1 /* 2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved. 3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, this list of 9 * conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 12 * of conditions and the following disclaimer in the documentation and/or other materials 13 * provided with the distribution. 14 * 15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used 16 * to endorse or promote products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _FS_OPERATIONS_H_ 33 #define _FS_OPERATIONS_H_ 34 35 #include "fcntl.h" 36 #include "dirent.h" 37 #include "unistd.h" 38 #include "sys/mount.h" 39 #include "sys/stat.h" 40 #include "sys/statfs.h" 41 42 #define FS_SUCCESS 0 43 #define FS_FAILURE (-1) 44 #define MAX_FILESYSTEM_LEN 2 45 46 struct MountOps { 47 int (*Mount)(const char *source, const char *target, const char *filesystemtype, unsigned long mountflags, 48 const void *data); 49 int (*Umount)(const char* target); 50 int (*Umount2)(const char* target, int flag); 51 int (*Statfs)(const char *path, struct statfs *buf); 52 }; 53 54 struct FsMap { 55 const char *fileSystemtype; 56 const struct MountOps *fsMops; 57 const struct FileOps *fsFops; 58 }; 59 60 struct FileOps { 61 int (*Open)(const char *path, int openFlag, ...); 62 int (*Close)(int fd); 63 int (*Unlink)(const char *fileName); 64 int (*Rmdir)(const char *dirName); 65 int (*Mkdir)(const char *dirName, mode_t mode); 66 struct dirent *(*Readdir)(DIR *dir); 67 DIR *(*Opendir)(const char *dirName); 68 int (*Closedir)(DIR *dir); 69 int (*Read)(int fd, void *buf, size_t len); 70 int (*Write)(int fd, const void *buf, size_t len); 71 off_t (*Seek)(int fd, off_t offset, int whence); 72 int (*Getattr)(const char *path, struct stat *buf); 73 int (*Rename)(const char *oldName, const char *newName); 74 int (*Fsync)(int fd); 75 int (*Fstat)(int fd, struct stat *buf); 76 int (*Stat)(const char *path, struct stat *buf); 77 int (*Ftruncate)(int fd, off_t length); 78 int (*Pread)(int fd, void *buf, size_t nbyte, off_t offset); 79 int (*Pwrite)(int fd, const void *buf, size_t nbyte, off_t offset); 80 }; 81 82 #endif /* _FS_OPERATIONS_H_ */ 83