fuse.h revision 1.25
1 /* $NetBSD: fuse.h,v 1.25 2022/01/22 07:53:06 pho Exp $ */ 2 3 /* 4 * Copyright 2007 Alistair Crooks. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote 15 * products derived from this software without specific prior written 16 * permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 24 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 #ifndef FUSE_H_ 31 #define FUSE_H_ 20211204 32 33 #include <refuse/session.h> 34 #include <sys/cdefs.h> 35 #include <sys/stat.h> 36 #include <sys/statvfs.h> 37 #include <sys/types.h> 38 #include <utime.h> 39 40 /* The latest version of FUSE API currently provided by refuse. */ 41 #define FUSE_MAJOR_VERSION 2 42 #define FUSE_MINOR_VERSION 6 43 44 #define FUSE_MAKE_VERSION(maj, min) ((maj) * 10 + (min)) 45 #define FUSE_VERSION FUSE_MAKE_VERSION(FUSE_MAJOR_VERSION, FUSE_MINOR_VERSION) 46 47 /* FUSE_USE_VERSION is expected to be defined by user code to 48 * determine the API to be used. Although defining this macro is 49 * mandatory in the original FUSE implementation, refuse hasn't 50 * required this so we only emit a warning if it's undefined. */ 51 #if defined(FUSE_USE_VERSION) 52 # if FUSE_USE_VERSION > FUSE_VERSION 53 # warning "The requested API version is higher than the latest one supported by refuse." 54 # endif 55 #else 56 # warning "User code including <fuse.h> should define FUSE_USE_VERSION before including this header. Defaulting to the latest version." 57 # define FUSE_USE_VERSION FUSE_VERSION 58 #endif 59 60 #ifdef __cplusplus 61 extern "C" { 62 #endif 63 64 struct fuse; 65 struct fuse_args; /* XXXsupportme */ 66 67 struct fuse_file_info { 68 int32_t flags; 69 uint32_t fh_old; 70 int32_t writepage; 71 uint32_t direct_io:1; 72 uint32_t keep_cache:1; 73 uint32_t flush:1; 74 uint32_t padding:29; 75 uint64_t fh; 76 uint64_t lock_owner; 77 }; 78 79 struct fuse_conn_info { 80 uint32_t proto_major; 81 uint32_t proto_minor; 82 uint32_t async_read; 83 uint32_t max_write; 84 uint32_t max_readahead; 85 uint32_t reserved[27]; 86 }; 87 88 /* equivalent'ish of puffs_cc */ 89 struct fuse_context { 90 struct fuse *fuse; 91 uid_t uid; 92 gid_t gid; 93 pid_t pid; 94 void *private_data; 95 }; 96 97 /** 98 * Argument list 99 */ 100 struct fuse_args { 101 int argc; 102 char **argv; 103 int allocated; 104 }; 105 106 /** 107 * Initializer for 'struct fuse_args' 108 */ 109 #define FUSE_ARGS_INIT(argc, argv) { argc, argv, 0 } 110 111 typedef struct puffs_fuse_dirh *fuse_dirh_t; 112 113 typedef int (*fuse_fill_dir_t)(void *, const char *, const struct stat *, off_t); 114 typedef int (*fuse_dirfil_t)(fuse_dirh_t, const char *, int, ino_t); 115 116 /* 117 * These operations shadow those in puffs_usermount, and are used 118 * as a table of callbacks to make when file system requests come 119 * in. 120 * 121 * NOTE: keep same order as fuse 122 */ 123 struct fuse_operations { 124 int (*getattr)(const char *, struct stat *); 125 int (*readlink)(const char *, char *, size_t); 126 int (*getdir)(const char *, fuse_dirh_t, fuse_dirfil_t); 127 int (*mknod)(const char *, mode_t, dev_t); 128 int (*mkdir)(const char *, mode_t); 129 int (*unlink)(const char *); 130 int (*rmdir)(const char *); 131 int (*symlink)(const char *, const char *); 132 int (*rename)(const char *, const char *); 133 int (*link)(const char *, const char *); 134 int (*chmod)(const char *, mode_t); 135 int (*chown)(const char *, uid_t, gid_t); 136 int (*truncate)(const char *, off_t); 137 int (*utime)(const char *, struct utimbuf *); 138 int (*open)(const char *, struct fuse_file_info *); 139 int (*read)(const char *, char *, size_t, off_t, struct fuse_file_info *); 140 int (*write)(const char *, const char *, size_t, off_t, struct fuse_file_info *); 141 int (*statfs)(const char *, struct statvfs *); 142 int (*flush)(const char *, struct fuse_file_info *); 143 int (*release)(const char *, struct fuse_file_info *); 144 int (*fsync)(const char *, int, struct fuse_file_info *); 145 int (*setxattr)(const char *, const char *, const char *, size_t, int); 146 int (*getxattr)(const char *, const char *, char *, size_t); 147 int (*listxattr)(const char *, char *, size_t); 148 int (*removexattr)(const char *, const char *); 149 int (*opendir)(const char *, struct fuse_file_info *); 150 int (*readdir)(const char *, void *, fuse_fill_dir_t, off_t, struct fuse_file_info *); 151 int (*releasedir)(const char *, struct fuse_file_info *); 152 int (*fsyncdir)(const char *, int, struct fuse_file_info *); 153 void *(*init)(struct fuse_conn_info *); 154 void (*destroy)(void *); 155 int (*access)(const char *, int); 156 int (*create)(const char *, mode_t, struct fuse_file_info *); 157 int (*ftruncate)(const char *, off_t, struct fuse_file_info *); 158 int (*fgetattr)(const char *, struct stat *, struct fuse_file_info *); 159 int (*lock)(const char *, struct fuse_file_info *, int, struct flock *); 160 int (*utimens)(const char *, const struct timespec *); 161 int (*bmap)(const char *, size_t , uint64_t *); 162 }; 163 164 165 struct fuse *fuse_new(struct fuse_args *, 166 const struct fuse_operations *, size_t, void *); 167 168 int fuse_mount(struct fuse *, const char *); 169 void fuse_unmount(struct fuse *); 170 171 int fuse_daemonize(struct fuse *); 172 173 int fuse_main_real(int, char **, const struct fuse_operations *, size_t, void *); 174 int fuse_loop(struct fuse *); 175 struct fuse_context *fuse_get_context(void); 176 void fuse_exit(struct fuse *); 177 void fuse_destroy(struct fuse *); 178 int fuse_version(void); 179 180 #if FUSE_USE_VERSION == 22 181 #define fuse_unmount fuse_unmount_compat22 182 #endif 183 184 void fuse_unmount_compat22(const char *); 185 186 #if FUSE_USE_VERSION >= 26 187 #define fuse_main(argc, argv, op, user_data) \ 188 fuse_main_real(argc, argv, op, sizeof(*(op)), user_data) 189 #else 190 #define fuse_main(argc, argv, op) \ 191 fuse_main_real(argc, argv, op, sizeof(*(op)), NULL) 192 #endif 193 194 #ifdef __cplusplus 195 } 196 #endif 197 198 #include <fuse_opt.h> 199 200 #endif 201
Indexes created Mon Oct 20 05:10:11 GMT 2025