Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | FUSE: Filesystem in Userspace |
Miklos Szeredi | 149f607 | 2005-01-10 12:29:28 +0000 | [diff] [blame] | 3 | Copyright (C) 2001-2005 Miklos Szeredi <miklos@szeredi.hu> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 4 | |
Miklos Szeredi | 8b39a9f | 2002-10-25 12:41:16 +0000 | [diff] [blame] | 5 | This program can be distributed under the terms of the GNU LGPL. |
| 6 | See the file COPYING.LIB |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
Miklos Szeredi | e2aa2e2 | 2005-07-15 13:31:36 +0000 | [diff] [blame] | 9 | |
| 10 | /* For pthread_rwlock_t */ |
| 11 | #define _GNU_SOURCE |
| 12 | |
| 13 | #include "fuse.h" |
| 14 | #include "fuse_lowlevel.h" |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 15 | #include "fuse_compat.h" |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 16 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 17 | #include <stdio.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 18 | #include <string.h> |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 19 | #include <stdlib.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 20 | #include <unistd.h> |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 21 | #include <limits.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 22 | #include <errno.h> |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 23 | #include <assert.h> |
| 24 | #include <stdint.h> |
Miklos Szeredi | e2aa2e2 | 2005-07-15 13:31:36 +0000 | [diff] [blame] | 25 | #include <pthread.h> |
Miklos Szeredi | 019b4e9 | 2001-12-26 18:08:09 +0000 | [diff] [blame] | 26 | #include <sys/param.h> |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 27 | #include <sys/uio.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 28 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 29 | /* FUSE flags: */ |
| 30 | |
| 31 | /** Enable debuging output */ |
| 32 | #define FUSE_DEBUG (1 << 1) |
| 33 | |
| 34 | /** If a file is removed but it's still open, don't hide the file but |
| 35 | remove it immediately */ |
| 36 | #define FUSE_HARD_REMOVE (1 << 2) |
| 37 | |
| 38 | /** Use st_ino field in getattr instead of generating inode numbers */ |
| 39 | #define FUSE_USE_INO (1 << 3) |
| 40 | |
Miklos Szeredi | 33be22d | 2005-05-27 09:12:43 +0000 | [diff] [blame] | 41 | /** Make a best effort to fill in inode number in a readdir **/ |
| 42 | #define FUSE_READDIR_INO (1 << 5) |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 43 | |
Miklos Szeredi | e331c4b | 2005-07-06 13:34:02 +0000 | [diff] [blame] | 44 | /** Ignore file mode supplied by the filesystem, and create one based |
| 45 | on the 'umask' option */ |
| 46 | #define FUSE_SET_MODE (1 << 6) |
| 47 | |
| 48 | /** Ignore st_uid supplied by the filesystem and set it based on the |
| 49 | 'uid' option*/ |
| 50 | #define FUSE_SET_UID (1 << 7) |
| 51 | |
| 52 | /** Ignore st_gid supplied by the filesystem and set it based on the |
| 53 | 'gid' option*/ |
| 54 | #define FUSE_SET_GID (1 << 8) |
| 55 | |
Miklos Szeredi | e77cc07 | 2005-08-01 11:58:51 +0000 | [diff] [blame] | 56 | /** Bypass the page cache for read and write operations */ |
| 57 | #define FUSE_DIRECT_IO (1 << 9) |
| 58 | |
| 59 | /** If the FUSE_KERNEL_CACHE flag is given, then cached data will not |
| 60 | be flushed on open */ |
| 61 | #define FUSE_KERNEL_CACHE (1 << 10) |
Miklos Szeredi | e331c4b | 2005-07-06 13:34:02 +0000 | [diff] [blame] | 62 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 63 | #define FUSE_MAX_PATH 4096 |
Miklos Szeredi | 30e093a | 2005-04-03 17:44:54 +0000 | [diff] [blame] | 64 | |
Miklos Szeredi | e2aa2e2 | 2005-07-15 13:31:36 +0000 | [diff] [blame] | 65 | struct fuse { |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 66 | struct fuse_session *se; |
Miklos Szeredi | e2aa2e2 | 2005-07-15 13:31:36 +0000 | [diff] [blame] | 67 | int flags; |
| 68 | struct fuse_operations op; |
| 69 | int compat; |
| 70 | struct node **name_table; |
| 71 | size_t name_table_size; |
| 72 | struct node **id_table; |
| 73 | size_t id_table_size; |
| 74 | fuse_ino_t ctr; |
| 75 | unsigned int generation; |
| 76 | unsigned int hidectr; |
| 77 | pthread_mutex_t lock; |
| 78 | pthread_rwlock_t tree_lock; |
| 79 | void *user_data; |
| 80 | uid_t uid; |
| 81 | gid_t gid; |
| 82 | mode_t umask; |
Miklos Szeredi | 6c0209a | 2005-08-02 13:31:28 +0000 | [diff] [blame] | 83 | double entry_timeout; |
| 84 | double attr_timeout; |
Miklos Szeredi | e2aa2e2 | 2005-07-15 13:31:36 +0000 | [diff] [blame] | 85 | }; |
| 86 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 87 | struct node { |
| 88 | struct node *name_next; |
| 89 | struct node *id_next; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 90 | fuse_ino_t nodeid; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 91 | unsigned int generation; |
| 92 | int refctr; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 93 | fuse_ino_t parent; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 94 | char *name; |
Miklos Szeredi | 3800902 | 2005-05-08 19:47:22 +0000 | [diff] [blame] | 95 | uint64_t nlookup; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 96 | int open_count; |
| 97 | int is_hidden; |
| 98 | }; |
| 99 | |
| 100 | struct fuse_dirhandle { |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 101 | pthread_mutex_t lock; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 102 | struct fuse *fuse; |
Miklos Szeredi | 1b18802 | 2005-07-28 11:07:29 +0000 | [diff] [blame] | 103 | char *contents; |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 104 | int allocated; |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 105 | unsigned len; |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 106 | unsigned needlen; |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 107 | int filled; |
Miklos Szeredi | ede1f7a | 2005-04-01 21:08:57 +0000 | [diff] [blame] | 108 | unsigned long fh; |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 109 | int error; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 110 | fuse_ino_t nodeid; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 111 | }; |
| 112 | |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 113 | struct fuse_cmd { |
| 114 | char *buf; |
| 115 | size_t buflen; |
| 116 | }; |
| 117 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 118 | static struct fuse_context *(*fuse_getcontext)(void) = NULL; |
| 119 | |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 120 | #ifndef USE_UCLIBC |
| 121 | #define mutex_init(mut) pthread_mutex_init(mut, NULL) |
| 122 | #else |
Miklos Szeredi | 129ef8f | 2005-06-20 13:48:42 +0000 | [diff] [blame] | 123 | static void mutex_init(pthread_mutex_t *mut) |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 124 | { |
| 125 | pthread_mutexattr_t attr; |
| 126 | pthread_mutexattr_init(&attr); |
| 127 | pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ADAPTIVE_NP); |
| 128 | pthread_mutex_init(mut, &attr); |
| 129 | pthread_mutexattr_destroy(&attr); |
| 130 | } |
| 131 | #endif |
| 132 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 133 | static struct node *get_node_nocheck(struct fuse *f, fuse_ino_t nodeid) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 134 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 135 | size_t hash = nodeid % f->id_table_size; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 136 | struct node *node; |
| 137 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 138 | for (node = f->id_table[hash]; node != NULL; node = node->id_next) |
| 139 | if (node->nodeid == nodeid) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 140 | return node; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 141 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 142 | return NULL; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 143 | } |
| 144 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 145 | static struct node *get_node(struct fuse *f, fuse_ino_t nodeid) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 146 | { |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 147 | struct node *node = get_node_nocheck(f, nodeid); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 148 | if (!node) { |
| 149 | fprintf(stderr, "fuse internal error: node %lu not found\n", |
| 150 | nodeid); |
| 151 | abort(); |
| 152 | } |
| 153 | return node; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 154 | } |
| 155 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 156 | static void free_node(struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 157 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 158 | free(node->name); |
| 159 | free(node); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 160 | } |
| 161 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 162 | static void unhash_id(struct fuse *f, struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 163 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 164 | size_t hash = node->nodeid % f->id_table_size; |
| 165 | struct node **nodep = &f->id_table[hash]; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 166 | |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 167 | for (; *nodep != NULL; nodep = &(*nodep)->id_next) |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 168 | if (*nodep == node) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 169 | *nodep = node->id_next; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 170 | return; |
| 171 | } |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 172 | } |
| 173 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 174 | static void hash_id(struct fuse *f, struct node *node) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 175 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 176 | size_t hash = node->nodeid % f->id_table_size; |
| 177 | node->id_next = f->id_table[hash]; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 178 | f->id_table[hash] = node; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 179 | } |
| 180 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 181 | static unsigned int name_hash(struct fuse *f, fuse_ino_t parent, const char *name) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 182 | { |
| 183 | unsigned int hash = *name; |
| 184 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 185 | if (hash) |
| 186 | for (name += 1; *name != '\0'; name++) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 187 | hash = (hash << 5) - hash + *name; |
| 188 | |
| 189 | return (hash + parent) % f->name_table_size; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 190 | } |
| 191 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 192 | static void unref_node(struct fuse *f, struct node *node); |
| 193 | |
| 194 | static void unhash_name(struct fuse *f, struct node *node) |
| 195 | { |
| 196 | if (node->name) { |
| 197 | size_t hash = name_hash(f, node->parent, node->name); |
| 198 | struct node **nodep = &f->name_table[hash]; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 199 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 200 | for (; *nodep != NULL; nodep = &(*nodep)->name_next) |
| 201 | if (*nodep == node) { |
| 202 | *nodep = node->name_next; |
| 203 | node->name_next = NULL; |
| 204 | unref_node(f, get_node(f, node->parent)); |
| 205 | free(node->name); |
| 206 | node->name = NULL; |
| 207 | node->parent = 0; |
| 208 | return; |
| 209 | } |
| 210 | fprintf(stderr, "fuse internal error: unable to unhash node: %lu\n", |
| 211 | node->nodeid); |
| 212 | abort(); |
| 213 | } |
| 214 | } |
| 215 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 216 | static int hash_name(struct fuse *f, struct node *node, fuse_ino_t parent, |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 217 | const char *name) |
| 218 | { |
| 219 | size_t hash = name_hash(f, parent, name); |
| 220 | node->name = strdup(name); |
| 221 | if (node->name == NULL) |
| 222 | return -1; |
| 223 | |
| 224 | get_node(f, parent)->refctr ++; |
| 225 | node->parent = parent; |
| 226 | node->name_next = f->name_table[hash]; |
| 227 | f->name_table[hash] = node; |
| 228 | return 0; |
| 229 | } |
| 230 | |
| 231 | static void delete_node(struct fuse *f, struct node *node) |
| 232 | { |
Miklos Szeredi | 3800902 | 2005-05-08 19:47:22 +0000 | [diff] [blame] | 233 | if (f->flags & FUSE_DEBUG) { |
| 234 | printf("delete: %lu\n", node->nodeid); |
| 235 | fflush(stdout); |
| 236 | } |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 237 | assert(!node->name); |
| 238 | unhash_id(f, node); |
| 239 | free_node(node); |
| 240 | } |
| 241 | |
| 242 | static void unref_node(struct fuse *f, struct node *node) |
| 243 | { |
| 244 | assert(node->refctr > 0); |
| 245 | node->refctr --; |
| 246 | if (!node->refctr) |
| 247 | delete_node(f, node); |
| 248 | } |
| 249 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 250 | static fuse_ino_t next_id(struct fuse *f) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 251 | { |
| 252 | do { |
| 253 | f->ctr++; |
| 254 | if (!f->ctr) |
| 255 | f->generation ++; |
| 256 | } while (f->ctr == 0 || get_node_nocheck(f, f->ctr) != NULL); |
| 257 | return f->ctr; |
| 258 | } |
| 259 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 260 | static struct node *lookup_node(struct fuse *f, fuse_ino_t parent, |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 261 | const char *name) |
| 262 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 263 | size_t hash = name_hash(f, parent, name); |
| 264 | struct node *node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 265 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 266 | for (node = f->name_table[hash]; node != NULL; node = node->name_next) |
| 267 | if (node->parent == parent && strcmp(node->name, name) == 0) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 268 | return node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 269 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 270 | return NULL; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 271 | } |
| 272 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 273 | static struct node *find_node(struct fuse *f, fuse_ino_t parent, |
| 274 | const char *name) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 275 | { |
| 276 | struct node *node; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 277 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 278 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 279 | node = lookup_node(f, parent, name); |
Miklos Szeredi | e331c4b | 2005-07-06 13:34:02 +0000 | [diff] [blame] | 280 | if (node == NULL) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 281 | node = (struct node *) calloc(1, sizeof(struct node)); |
| 282 | if (node == NULL) |
| 283 | goto out_err; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 284 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 285 | node->refctr = 1; |
| 286 | node->nodeid = next_id(f); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 287 | node->open_count = 0; |
| 288 | node->is_hidden = 0; |
| 289 | node->generation = f->generation; |
| 290 | if (hash_name(f, node, parent, name) == -1) { |
| 291 | free(node); |
| 292 | node = NULL; |
| 293 | goto out_err; |
| 294 | } |
| 295 | hash_id(f, node); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 296 | } |
Miklos Szeredi | 3800902 | 2005-05-08 19:47:22 +0000 | [diff] [blame] | 297 | node->nlookup ++; |
Miklos Szeredi | c230991 | 2004-09-21 13:40:38 +0000 | [diff] [blame] | 298 | out_err: |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 299 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 300 | return node; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 301 | } |
| 302 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 303 | static char *add_name(char *buf, char *s, const char *name) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 304 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 305 | size_t len = strlen(name); |
| 306 | s -= len; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 307 | if (s <= buf) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 308 | fprintf(stderr, "fuse: path too long: ...%s\n", s + len); |
| 309 | return NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 310 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 311 | strncpy(s, name, len); |
| 312 | s--; |
| 313 | *s = '/'; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 314 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 315 | return s; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 316 | } |
| 317 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 318 | static char *get_path_name(struct fuse *f, fuse_ino_t nodeid, const char *name) |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 319 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 320 | char buf[FUSE_MAX_PATH]; |
| 321 | char *s = buf + FUSE_MAX_PATH - 1; |
| 322 | struct node *node; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 323 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 324 | *s = '\0'; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 325 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 326 | if (name != NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 327 | s = add_name(buf, s, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 328 | if (s == NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 329 | return NULL; |
| 330 | } |
| 331 | |
| 332 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 333 | for (node = get_node(f, nodeid); node && node->nodeid != FUSE_ROOT_ID; |
| 334 | node = get_node(f, node->parent)) { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 335 | if (node->name == NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 336 | s = NULL; |
| 337 | break; |
| 338 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 339 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 340 | s = add_name(buf, s, node->name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 341 | if (s == NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 342 | break; |
| 343 | } |
| 344 | pthread_mutex_unlock(&f->lock); |
| 345 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 346 | if (node == NULL || s == NULL) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 347 | return NULL; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 348 | else if (*s == '\0') |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 349 | return strdup("/"); |
| 350 | else |
| 351 | return strdup(s); |
| 352 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 353 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 354 | static char *get_path(struct fuse *f, fuse_ino_t nodeid) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 355 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 356 | return get_path_name(f, nodeid, NULL); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 357 | } |
| 358 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 359 | static void forget_node(struct fuse *f, fuse_ino_t nodeid, uint64_t nlookup) |
Miklos Szeredi | 3800902 | 2005-05-08 19:47:22 +0000 | [diff] [blame] | 360 | { |
| 361 | struct node *node; |
| 362 | if (nodeid == FUSE_ROOT_ID) |
| 363 | return; |
| 364 | pthread_mutex_lock(&f->lock); |
| 365 | node = get_node(f, nodeid); |
| 366 | assert(node->nlookup >= nlookup); |
| 367 | node->nlookup -= nlookup; |
| 368 | if (!node->nlookup) { |
| 369 | unhash_name(f, node); |
| 370 | unref_node(f, node); |
| 371 | } |
| 372 | pthread_mutex_unlock(&f->lock); |
| 373 | } |
| 374 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 375 | static void remove_node(struct fuse *f, fuse_ino_t dir, const char *name) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 376 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 377 | struct node *node; |
| 378 | |
| 379 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 380 | node = lookup_node(f, dir, name); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 381 | if (node != NULL) |
| 382 | unhash_name(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 383 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 384 | } |
| 385 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 386 | static int rename_node(struct fuse *f, fuse_ino_t olddir, const char *oldname, |
| 387 | fuse_ino_t newdir, const char *newname, int hide) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 388 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 389 | struct node *node; |
| 390 | struct node *newnode; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 391 | int err = 0; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 392 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 393 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 394 | node = lookup_node(f, olddir, oldname); |
| 395 | newnode = lookup_node(f, newdir, newname); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 396 | if (node == NULL) |
| 397 | goto out; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 398 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 399 | if (newnode != NULL) { |
| 400 | if (hide) { |
| 401 | fprintf(stderr, "fuse: hidden file got created during hiding\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 402 | err = -EBUSY; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 403 | goto out; |
| 404 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 405 | unhash_name(f, newnode); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 406 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 407 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 408 | unhash_name(f, node); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 409 | if (hash_name(f, node, newdir, newname) == -1) { |
| 410 | err = -ENOMEM; |
| 411 | goto out; |
| 412 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 413 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 414 | if (hide) |
| 415 | node->is_hidden = 1; |
| 416 | |
| 417 | out: |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 418 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 419 | return err; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 420 | } |
| 421 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 422 | static void set_stat(struct fuse *f, fuse_ino_t nodeid, struct stat *stbuf) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 423 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 424 | if (!(f->flags & FUSE_USE_INO)) |
| 425 | stbuf->st_ino = nodeid; |
Miklos Szeredi | e331c4b | 2005-07-06 13:34:02 +0000 | [diff] [blame] | 426 | if (f->flags & FUSE_SET_MODE) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 427 | stbuf->st_mode = (stbuf->st_mode & S_IFMT) | (0777 & ~f->umask); |
| 428 | if (f->flags & FUSE_SET_UID) |
| 429 | stbuf->st_uid = f->uid; |
| 430 | if (f->flags & FUSE_SET_GID) |
| 431 | stbuf->st_gid = f->gid; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 432 | } |
| 433 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 434 | static int is_open(struct fuse *f, fuse_ino_t dir, const char *name) |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 435 | { |
| 436 | struct node *node; |
| 437 | int isopen = 0; |
| 438 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 439 | node = lookup_node(f, dir, name); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 440 | if (node && node->open_count > 0) |
| 441 | isopen = 1; |
| 442 | pthread_mutex_unlock(&f->lock); |
| 443 | return isopen; |
| 444 | } |
| 445 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 446 | static char *hidden_name(struct fuse *f, fuse_ino_t dir, const char *oldname, |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 447 | char *newname, size_t bufsize) |
| 448 | { |
| 449 | struct stat buf; |
| 450 | struct node *node; |
| 451 | struct node *newnode; |
| 452 | char *newpath; |
| 453 | int res; |
| 454 | int failctr = 10; |
| 455 | |
| 456 | if (!f->op.getattr) |
| 457 | return NULL; |
| 458 | |
| 459 | do { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 460 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 461 | node = lookup_node(f, dir, oldname); |
| 462 | if (node == NULL) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 463 | pthread_mutex_unlock(&f->lock); |
| 464 | return NULL; |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 465 | } |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 466 | do { |
| 467 | f->hidectr ++; |
| 468 | snprintf(newname, bufsize, ".fuse_hidden%08x%08x", |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 469 | (unsigned int) node->nodeid, f->hidectr); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 470 | newnode = lookup_node(f, dir, newname); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 471 | } while(newnode); |
| 472 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 473 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 474 | newpath = get_path_name(f, dir, newname); |
| 475 | if (!newpath) |
| 476 | break; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 477 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 478 | res = f->op.getattr(newpath, &buf); |
| 479 | if (res != 0) |
| 480 | break; |
| 481 | free(newpath); |
| 482 | newpath = NULL; |
| 483 | } while(--failctr); |
| 484 | |
| 485 | return newpath; |
| 486 | } |
| 487 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 488 | static int hide_node(struct fuse *f, const char *oldpath, fuse_ino_t dir, |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 489 | const char *oldname) |
| 490 | { |
| 491 | char newname[64]; |
| 492 | char *newpath; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 493 | int err = -EBUSY; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 494 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 495 | if (f->op.rename && f->op.unlink) { |
| 496 | newpath = hidden_name(f, dir, oldname, newname, sizeof(newname)); |
| 497 | if (newpath) { |
| 498 | int res = f->op.rename(oldpath, newpath); |
| 499 | if (res == 0) |
| 500 | err = rename_node(f, dir, oldname, dir, newname, 1); |
| 501 | free(newpath); |
| 502 | } |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 503 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 504 | return err; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 505 | } |
| 506 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 507 | static int lookup_path(struct fuse *f, fuse_ino_t nodeid, const char *name, |
| 508 | const char *path, struct fuse_entry_param *e) |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 509 | { |
| 510 | int res; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 511 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 512 | memset(e, 0, sizeof(struct fuse_entry_param)); |
| 513 | res = f->op.getattr(path, &e->attr); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 514 | if (res == 0) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 515 | struct node *node; |
| 516 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 517 | node = find_node(f, nodeid, name); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 518 | if (node == NULL) |
| 519 | res = -ENOMEM; |
| 520 | else { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 521 | e->ino = node->nodeid; |
| 522 | e->generation = node->generation; |
Miklos Szeredi | 6c0209a | 2005-08-02 13:31:28 +0000 | [diff] [blame] | 523 | e->entry_timeout = f->entry_timeout; |
| 524 | e->attr_timeout = f->attr_timeout; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 525 | set_stat(f, e->ino, &e->attr); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 526 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 527 | printf(" NODEID: %lu\n", (unsigned long) e->ino); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 528 | fflush(stdout); |
| 529 | } |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 530 | } |
| 531 | } |
| 532 | return res; |
| 533 | } |
| 534 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 535 | static struct fuse *req_fuse(fuse_req_t req) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 536 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 537 | return (struct fuse *) fuse_req_userdata(req); |
| 538 | } |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 539 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 540 | static struct fuse *req_fuse_prepare(fuse_req_t req) |
| 541 | { |
| 542 | struct fuse_context *c = fuse_get_context(); |
| 543 | const struct fuse_ctx *ctx = fuse_req_ctx(req); |
| 544 | c->fuse = req_fuse(req); |
| 545 | c->uid = ctx->uid; |
| 546 | c->gid = ctx->gid; |
| 547 | c->pid = ctx->pid; |
| 548 | c->private_data = c->fuse->user_data; |
| 549 | |
| 550 | return c->fuse; |
| 551 | } |
| 552 | |
| 553 | static inline void reply_err(fuse_req_t req, int err) |
| 554 | { |
| 555 | /* fuse_reply_err() uses non-negated errno values */ |
| 556 | fuse_reply_err(req, -err); |
| 557 | } |
| 558 | |
| 559 | static void reply_entry(fuse_req_t req, const struct fuse_entry_param *e, |
| 560 | int err) |
| 561 | { |
| 562 | if (!err) { |
Miklos Szeredi | 9b813af | 2005-07-21 07:59:37 +0000 | [diff] [blame] | 563 | if (fuse_reply_entry(req, e) == -ENOENT) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 564 | forget_node(req_fuse(req), e->ino, 1); |
| 565 | } else |
| 566 | reply_err(req, err); |
| 567 | } |
| 568 | |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 569 | static void fuse_data_init(void *data) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 570 | { |
| 571 | struct fuse *f = (struct fuse *) data; |
| 572 | |
| 573 | if (f->op.init) |
| 574 | f->user_data = f->op.init(); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 575 | } |
| 576 | |
| 577 | static void fuse_data_destroy(void *data) |
| 578 | { |
| 579 | struct fuse *f = (struct fuse *) data; |
| 580 | |
| 581 | if (f->op.destroy) |
| 582 | f->op.destroy(f->user_data); |
| 583 | } |
| 584 | |
| 585 | static void fuse_lookup(fuse_req_t req, fuse_ino_t parent, const char *name) |
| 586 | { |
| 587 | struct fuse *f = req_fuse_prepare(req); |
| 588 | struct fuse_entry_param e; |
| 589 | char *path; |
| 590 | int err; |
| 591 | |
| 592 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 593 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 594 | path = get_path_name(f, parent, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 595 | if (path != NULL) { |
| 596 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 597 | printf("LOOKUP %s\n", path); |
| 598 | fflush(stdout); |
| 599 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 600 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 601 | if (f->op.getattr) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 602 | err = lookup_path(f, parent, name, path, &e); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 603 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 604 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 605 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 606 | reply_entry(req, &e, err); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 607 | } |
| 608 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 609 | static void fuse_forget(fuse_req_t req, fuse_ino_t ino, unsigned long nlookup) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 610 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 611 | struct fuse *f = req_fuse(req); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 612 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 613 | printf("FORGET %lu/%lu\n", ino, nlookup); |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 614 | fflush(stdout); |
| 615 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 616 | forget_node(f, ino, nlookup); |
| 617 | fuse_reply_none(req); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 618 | } |
| 619 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 620 | static void fuse_getattr(fuse_req_t req, fuse_ino_t ino) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 621 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 622 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 623 | struct stat buf; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 624 | char *path; |
| 625 | int err; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 626 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 627 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 628 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 629 | path = get_path(f, ino); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 630 | if (path != NULL) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 631 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 632 | if (f->op.getattr) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 633 | err = f->op.getattr(path, &buf); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 634 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 635 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 636 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 637 | if (!err) { |
| 638 | set_stat(f, ino, &buf); |
Miklos Szeredi | 6c0209a | 2005-08-02 13:31:28 +0000 | [diff] [blame] | 639 | fuse_reply_attr(req, &buf, f->attr_timeout); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 640 | } else |
| 641 | reply_err(req, err); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 642 | } |
| 643 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 644 | static int do_chmod(struct fuse *f, const char *path, struct stat *attr) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 645 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 646 | int err; |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 647 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 648 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 649 | if (f->op.chmod) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 650 | err = f->op.chmod(path, attr->st_mode); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 651 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 652 | return err; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 653 | } |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 654 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 655 | static int do_chown(struct fuse *f, const char *path, struct stat *attr, |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 656 | int valid) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 657 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 658 | int err; |
| 659 | uid_t uid = (valid & FUSE_SET_ATTR_UID) ? attr->st_uid : (uid_t) -1; |
| 660 | gid_t gid = (valid & FUSE_SET_ATTR_GID) ? attr->st_gid : (gid_t) -1; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 661 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 662 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 663 | if (f->op.chown) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 664 | err = f->op.chown(path, uid, gid); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 665 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 666 | return err; |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 667 | } |
| 668 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 669 | static int do_truncate(struct fuse *f, const char *path, struct stat *attr) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 670 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 671 | int err; |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 672 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 673 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 674 | if (f->op.truncate) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 675 | err = f->op.truncate(path, attr->st_size); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 676 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 677 | return err; |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 678 | } |
| 679 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 680 | static int do_utime(struct fuse *f, const char *path, struct stat *attr) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 681 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 682 | int err; |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 683 | struct utimbuf buf; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 684 | buf.actime = attr->st_atime; |
| 685 | buf.modtime = attr->st_mtime; |
| 686 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 687 | if (f->op.utime) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 688 | err = f->op.utime(path, &buf); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 689 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 690 | return err; |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 691 | } |
| 692 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 693 | static void fuse_setattr(fuse_req_t req, fuse_ino_t ino, struct stat *attr, |
| 694 | int valid) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 695 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 696 | struct fuse *f = req_fuse_prepare(req); |
| 697 | struct stat buf; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 698 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 699 | int err; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 700 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 701 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 702 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 703 | path = get_path(f, ino); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 704 | if (path != NULL) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 705 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 706 | if (f->op.getattr) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 707 | err = 0; |
| 708 | if (!err && (valid & FUSE_SET_ATTR_MODE)) |
| 709 | err = do_chmod(f, path, attr); |
| 710 | if (!err && (valid & (FUSE_SET_ATTR_UID | FUSE_SET_ATTR_GID))) |
| 711 | err = do_chown(f, path, attr, valid); |
| 712 | if (!err && (valid & FUSE_SET_ATTR_SIZE)) |
| 713 | err = do_truncate(f, path, attr); |
| 714 | if (!err && (valid & (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME)) == (FUSE_SET_ATTR_ATIME | FUSE_SET_ATTR_MTIME)) |
| 715 | err = do_utime(f, path, attr); |
| 716 | if (!err) |
| 717 | err = f->op.getattr(path, &buf); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 718 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 719 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 720 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 721 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 722 | if (!err) { |
| 723 | set_stat(f, ino, &buf); |
Miklos Szeredi | 6c0209a | 2005-08-02 13:31:28 +0000 | [diff] [blame] | 724 | fuse_reply_attr(req, &buf, f->attr_timeout); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 725 | } else |
| 726 | reply_err(req, err); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 727 | } |
| 728 | |
Miklos Szeredi | 7b28eae | 2005-08-01 12:48:30 +0000 | [diff] [blame] | 729 | static void fuse_access(fuse_req_t req, fuse_ino_t ino, int mask) |
| 730 | { |
| 731 | struct fuse *f = req_fuse_prepare(req); |
| 732 | char *path; |
| 733 | int err; |
| 734 | |
| 735 | err = -ENOENT; |
| 736 | pthread_rwlock_rdlock(&f->tree_lock); |
| 737 | path = get_path(f, ino); |
| 738 | if (path != NULL) { |
| 739 | err = -ENOSYS; |
| 740 | if (f->op.access) |
| 741 | err = f->op.access(path, mask); |
| 742 | free(path); |
| 743 | } |
| 744 | pthread_rwlock_unlock(&f->tree_lock); |
| 745 | reply_err(req, err); |
| 746 | } |
| 747 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 748 | static void fuse_readlink(fuse_req_t req, fuse_ino_t ino) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 749 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 750 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 751 | char linkname[PATH_MAX + 1]; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 752 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 753 | int err; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 754 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 755 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 756 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 757 | path = get_path(f, ino); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 758 | if (path != NULL) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 759 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 760 | if (f->op.readlink) |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 761 | err = f->op.readlink(path, linkname, sizeof(linkname)); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 762 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 763 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 764 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 765 | if (!err) { |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 766 | linkname[PATH_MAX] = '\0'; |
| 767 | fuse_reply_readlink(req, linkname); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 768 | } else |
| 769 | reply_err(req, err); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 770 | } |
| 771 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 772 | static void fuse_mknod(fuse_req_t req, fuse_ino_t parent, const char *name, |
| 773 | mode_t mode, dev_t rdev) |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 774 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 775 | struct fuse *f = req_fuse_prepare(req); |
| 776 | struct fuse_entry_param e; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 777 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 778 | int err; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 779 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 780 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 781 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 782 | path = get_path_name(f, parent, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 783 | if (path != NULL) { |
| 784 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 785 | printf("MKNOD %s\n", path); |
| 786 | fflush(stdout); |
| 787 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 788 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 789 | if (f->op.mknod && f->op.getattr) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 790 | err = f->op.mknod(path, mode, rdev); |
| 791 | if (!err) |
| 792 | err = lookup_path(f, parent, name, path, &e); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 793 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 794 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 795 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 796 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 797 | reply_entry(req, &e, err); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 798 | } |
| 799 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 800 | static void fuse_mkdir(fuse_req_t req, fuse_ino_t parent, const char *name, |
| 801 | mode_t mode) |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 802 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 803 | struct fuse *f = req_fuse_prepare(req); |
| 804 | struct fuse_entry_param e; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 805 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 806 | int err; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 807 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 808 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 809 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 810 | path = get_path_name(f, parent, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 811 | if (path != NULL) { |
| 812 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 813 | printf("MKDIR %s\n", path); |
| 814 | fflush(stdout); |
| 815 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 816 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 817 | if (f->op.mkdir && f->op.getattr) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 818 | err = f->op.mkdir(path, mode); |
| 819 | if (!err) |
| 820 | err = lookup_path(f, parent, name, path, &e); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 821 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 822 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 823 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 824 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 825 | reply_entry(req, &e, err); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 826 | } |
| 827 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 828 | static void fuse_unlink(fuse_req_t req, fuse_ino_t parent, const char *name) |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 829 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 830 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 831 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 832 | int err; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 833 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 834 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 835 | pthread_rwlock_wrlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 836 | path = get_path_name(f, parent, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 837 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 838 | if (f->flags & FUSE_DEBUG) { |
| 839 | printf("UNLINK %s\n", path); |
| 840 | fflush(stdout); |
| 841 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 842 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 843 | if (f->op.unlink) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 844 | if (!(f->flags & FUSE_HARD_REMOVE) && is_open(f, parent, name)) |
| 845 | err = hide_node(f, path, parent, name); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 846 | else { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 847 | err = f->op.unlink(path); |
| 848 | if (!err) |
| 849 | remove_node(f, parent, name); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 850 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 851 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 852 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 853 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 854 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 855 | reply_err(req, err); |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 856 | } |
| 857 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 858 | static void fuse_rmdir(fuse_req_t req, fuse_ino_t parent, const char *name) |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 859 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 860 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 861 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 862 | int err; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 863 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 864 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 865 | pthread_rwlock_wrlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 866 | path = get_path_name(f, parent, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 867 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 868 | if (f->flags & FUSE_DEBUG) { |
| 869 | printf("RMDIR %s\n", path); |
| 870 | fflush(stdout); |
| 871 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 872 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 873 | if (f->op.rmdir) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 874 | err = f->op.rmdir(path); |
| 875 | if (!err) |
| 876 | remove_node(f, parent, name); |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 877 | } |
| 878 | free(path); |
| 879 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 880 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 881 | reply_err(req, err); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 882 | } |
| 883 | |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 884 | static void fuse_symlink(fuse_req_t req, const char *linkname, |
| 885 | fuse_ino_t parent, const char *name) |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 886 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 887 | struct fuse *f = req_fuse_prepare(req); |
| 888 | struct fuse_entry_param e; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 889 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 890 | int err; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 891 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 892 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 893 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 894 | path = get_path_name(f, parent, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 895 | if (path != NULL) { |
| 896 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 897 | printf("SYMLINK %s\n", path); |
| 898 | fflush(stdout); |
| 899 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 900 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 901 | if (f->op.symlink && f->op.getattr) { |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 902 | err = f->op.symlink(linkname, path); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 903 | if (!err) |
| 904 | err = lookup_path(f, parent, name, path, &e); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 905 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 906 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 907 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 908 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 909 | reply_entry(req, &e, err); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 910 | } |
| 911 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 912 | static void fuse_rename(fuse_req_t req, fuse_ino_t olddir, const char *oldname, |
| 913 | fuse_ino_t newdir, const char *newname) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 914 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 915 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 916 | char *oldpath; |
| 917 | char *newpath; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 918 | int err; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 919 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 920 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 921 | pthread_rwlock_wrlock(&f->tree_lock); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 922 | oldpath = get_path_name(f, olddir, oldname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 923 | if (oldpath != NULL) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 924 | newpath = get_path_name(f, newdir, newname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 925 | if (newpath != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 926 | if (f->flags & FUSE_DEBUG) { |
| 927 | printf("RENAME %s -> %s\n", oldpath, newpath); |
| 928 | fflush(stdout); |
| 929 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 930 | err = -ENOSYS; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 931 | if (f->op.rename) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 932 | err = 0; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 933 | if (!(f->flags & FUSE_HARD_REMOVE) && |
Miklos Szeredi | 2529ca2 | 2004-07-13 15:36:52 +0000 | [diff] [blame] | 934 | is_open(f, newdir, newname)) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 935 | err = hide_node(f, newpath, newdir, newname); |
| 936 | if (!err) { |
| 937 | err = f->op.rename(oldpath, newpath); |
| 938 | if (!err) |
| 939 | err = rename_node(f, olddir, oldname, newdir, newname, 0); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 940 | } |
| 941 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 942 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 943 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 944 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 945 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 946 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 947 | reply_err(req, err); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 948 | } |
| 949 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 950 | static void fuse_link(fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent, |
| 951 | const char *newname) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 952 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 953 | struct fuse *f = req_fuse_prepare(req); |
| 954 | struct fuse_entry_param e; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 955 | char *oldpath; |
| 956 | char *newpath; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 957 | int err; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 958 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 959 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 960 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 961 | oldpath = get_path(f, ino); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 962 | if (oldpath != NULL) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 963 | newpath = get_path_name(f, newparent, newname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 964 | if (newpath != NULL) { |
| 965 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 966 | printf("LINK %s\n", newpath); |
| 967 | fflush(stdout); |
| 968 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 969 | err = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 970 | if (f->op.link && f->op.getattr) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 971 | err = f->op.link(oldpath, newpath); |
| 972 | if (!err) |
| 973 | err = lookup_path(f, newparent, newname, newpath, &e); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 974 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 975 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 976 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 977 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 978 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 979 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 980 | reply_entry(req, &e, err); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 981 | } |
| 982 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 983 | static void fuse_open(fuse_req_t req, fuse_ino_t ino, |
| 984 | struct fuse_file_info *fi) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 985 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 986 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | 31066bb | 2005-08-01 14:49:31 +0000 | [diff] [blame] | 987 | char *path = NULL; |
| 988 | int err = 0; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 989 | |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 990 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | 31066bb | 2005-08-01 14:49:31 +0000 | [diff] [blame] | 991 | if (f->op.open) { |
| 992 | err = -ENOENT; |
| 993 | path = get_path(f, ino); |
| 994 | if (path != NULL) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 995 | if (!f->compat) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 996 | err = f->op.open(path, fi); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 997 | else |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 998 | err = ((struct fuse_operations_compat2 *) &f->op)->open(path, fi->flags); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 999 | } |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 1000 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1001 | if (!err) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1002 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1003 | printf("OPEN[%lu] flags: 0x%x\n", fi->fh, fi->flags); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1004 | fflush(stdout); |
| 1005 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1006 | |
Miklos Szeredi | e77cc07 | 2005-08-01 11:58:51 +0000 | [diff] [blame] | 1007 | if (f->flags & FUSE_DIRECT_IO) |
| 1008 | fi->direct_io = 1; |
| 1009 | if (f->flags & FUSE_KERNEL_CACHE) |
| 1010 | fi->keep_cache = 1; |
| 1011 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1012 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1013 | if (fuse_reply_open(req, fi) == -ENOENT) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1014 | /* The open syscall was interrupted, so it must be cancelled */ |
Miklos Szeredi | 31066bb | 2005-08-01 14:49:31 +0000 | [diff] [blame] | 1015 | if(f->op.release && path != NULL) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1016 | if (!f->compat) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1017 | f->op.release(path, fi); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1018 | else |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1019 | ((struct fuse_operations_compat2 *) &f->op)->release(path, fi->flags); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1020 | } |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1021 | } else { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1022 | struct node *node = get_node(f, ino); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1023 | node->open_count ++; |
| 1024 | } |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1025 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1026 | } else |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1027 | reply_err(req, err); |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1028 | |
Miklos Szeredi | 9a31cca | 2004-06-26 21:11:25 +0000 | [diff] [blame] | 1029 | if (path) |
| 1030 | free(path); |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1031 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1032 | } |
| 1033 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1034 | static void fuse_read(fuse_req_t req, fuse_ino_t ino, size_t size, off_t off, |
| 1035 | struct fuse_file_info *fi) |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1036 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1037 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1038 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1039 | char *buf; |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1040 | int res; |
| 1041 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1042 | buf = (char *) malloc(size); |
| 1043 | if (buf == NULL) { |
| 1044 | reply_err(req, -ENOMEM); |
| 1045 | return; |
| 1046 | } |
| 1047 | |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1048 | res = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1049 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1050 | path = get_path(f, ino); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1051 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1052 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1053 | printf("READ[%lu] %u bytes from %llu\n", fi->fh, size, off); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1054 | fflush(stdout); |
| 1055 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1056 | |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1057 | res = -ENOSYS; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1058 | if (f->op.read) |
| 1059 | res = f->op.read(path, buf, size, off, fi); |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1060 | free(path); |
| 1061 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1062 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1063 | |
| 1064 | if (res >= 0) { |
| 1065 | if (f->flags & FUSE_DEBUG) { |
| 1066 | printf(" READ[%lu] %u bytes\n", fi->fh, res); |
| 1067 | fflush(stdout); |
| 1068 | } |
| 1069 | fuse_reply_buf(req, buf, res); |
| 1070 | } else |
| 1071 | reply_err(req, res); |
| 1072 | |
| 1073 | free(buf); |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1074 | } |
| 1075 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1076 | static void fuse_write(fuse_req_t req, fuse_ino_t ino, const char *buf, |
| 1077 | size_t size, off_t off, struct fuse_file_info *fi) |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1078 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1079 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1080 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1081 | int res; |
| 1082 | |
| 1083 | res = -ENOENT; |
| 1084 | pthread_rwlock_rdlock(&f->tree_lock); |
| 1085 | path = get_path(f, ino); |
| 1086 | if (path != NULL) { |
| 1087 | if (f->flags & FUSE_DEBUG) { |
| 1088 | printf("WRITE%s[%lu] %u bytes to %llu\n", |
| 1089 | fi->writepage ? "PAGE" : "", fi->fh, size, off); |
| 1090 | fflush(stdout); |
| 1091 | } |
| 1092 | |
| 1093 | res = -ENOSYS; |
| 1094 | if (f->op.write) |
| 1095 | res = f->op.write(path, buf, size, off, fi); |
| 1096 | free(path); |
| 1097 | } |
| 1098 | pthread_rwlock_unlock(&f->tree_lock); |
| 1099 | |
| 1100 | if (res >= 0) |
| 1101 | fuse_reply_write(req, res); |
| 1102 | else |
| 1103 | reply_err(req, res); |
| 1104 | } |
| 1105 | |
| 1106 | static void fuse_flush(fuse_req_t req, fuse_ino_t ino, |
| 1107 | struct fuse_file_info *fi) |
| 1108 | { |
| 1109 | struct fuse *f = req_fuse_prepare(req); |
| 1110 | char *path; |
| 1111 | int err; |
| 1112 | |
| 1113 | err = -ENOENT; |
| 1114 | pthread_rwlock_rdlock(&f->tree_lock); |
| 1115 | path = get_path(f, ino); |
| 1116 | if (path != NULL) { |
| 1117 | if (f->flags & FUSE_DEBUG) { |
| 1118 | printf("FLUSH[%lu]\n", fi->fh); |
| 1119 | fflush(stdout); |
| 1120 | } |
| 1121 | err = -ENOSYS; |
| 1122 | if (f->op.flush) |
| 1123 | err = f->op.flush(path, fi); |
| 1124 | free(path); |
| 1125 | } |
| 1126 | pthread_rwlock_unlock(&f->tree_lock); |
| 1127 | reply_err(req, err); |
| 1128 | } |
| 1129 | |
| 1130 | static void fuse_release(fuse_req_t req, fuse_ino_t ino, |
| 1131 | struct fuse_file_info *fi) |
| 1132 | { |
| 1133 | struct fuse *f = req_fuse_prepare(req); |
| 1134 | char *path; |
| 1135 | struct node *node; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1136 | int unlink_hidden; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1137 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1138 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1139 | node = get_node(f, ino); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1140 | assert(node->open_count > 0); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1141 | --node->open_count; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1142 | unlink_hidden = (node->is_hidden && !node->open_count); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1143 | pthread_mutex_unlock(&f->lock); |
| 1144 | |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1145 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1146 | path = get_path(f, ino); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1147 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1148 | printf("RELEASE[%lu] flags: 0x%x\n", fi->fh, fi->flags); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1149 | fflush(stdout); |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1150 | } |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1151 | if (f->op.release) { |
| 1152 | if (!f->compat) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1153 | f->op.release(path ? path : "-", fi); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1154 | else if (path) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1155 | ((struct fuse_operations_compat2 *) &f->op)->release(path, fi->flags); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1156 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1157 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1158 | if(unlink_hidden && path) |
| 1159 | f->op.unlink(path); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1160 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1161 | if (path) |
| 1162 | free(path); |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1163 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1164 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1165 | reply_err(req, 0); |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1166 | } |
| 1167 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1168 | static void fuse_fsync(fuse_req_t req, fuse_ino_t ino, int datasync, |
| 1169 | struct fuse_file_info *fi) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1170 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1171 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1172 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1173 | int err; |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1174 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1175 | err = -ENOENT; |
| 1176 | pthread_rwlock_rdlock(&f->tree_lock); |
| 1177 | path = get_path(f, ino); |
| 1178 | if (path != NULL) { |
| 1179 | if (f->flags & FUSE_DEBUG) { |
| 1180 | printf("FSYNC[%lu]\n", fi->fh); |
| 1181 | fflush(stdout); |
| 1182 | } |
| 1183 | err = -ENOSYS; |
| 1184 | if (f->op.fsync) |
| 1185 | err = f->op.fsync(path, datasync, fi); |
| 1186 | free(path); |
| 1187 | } |
| 1188 | pthread_rwlock_unlock(&f->tree_lock); |
| 1189 | reply_err(req, err); |
| 1190 | } |
| 1191 | |
| 1192 | static struct fuse_dirhandle *get_dirhandle(const struct fuse_file_info *llfi, |
| 1193 | struct fuse_file_info *fi) |
| 1194 | { |
| 1195 | struct fuse_dirhandle *dh = (struct fuse_dirhandle *) llfi->fh; |
| 1196 | memset(fi, 0, sizeof(struct fuse_file_info)); |
| 1197 | fi->fh = dh->fh; |
| 1198 | return dh; |
| 1199 | } |
| 1200 | |
| 1201 | static void fuse_opendir(fuse_req_t req, fuse_ino_t ino, |
| 1202 | struct fuse_file_info *llfi) |
| 1203 | { |
| 1204 | struct fuse *f = req_fuse_prepare(req); |
| 1205 | struct fuse_dirhandle *dh; |
| 1206 | |
| 1207 | dh = (struct fuse_dirhandle *) malloc(sizeof(struct fuse_dirhandle)); |
| 1208 | if (dh == NULL) { |
| 1209 | reply_err(req, -ENOMEM); |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1210 | return; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1211 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1212 | memset(dh, 0, sizeof(struct fuse_dirhandle)); |
| 1213 | dh->fuse = f; |
| 1214 | dh->contents = NULL; |
| 1215 | dh->len = 0; |
| 1216 | dh->filled = 0; |
| 1217 | dh->nodeid = ino; |
| 1218 | mutex_init(&dh->lock); |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1219 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1220 | llfi->fh = (unsigned long) dh; |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1221 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1222 | if (f->op.opendir) { |
| 1223 | struct fuse_file_info fi; |
| 1224 | char *path; |
| 1225 | int err; |
| 1226 | |
| 1227 | memset(&fi, 0, sizeof(fi)); |
| 1228 | fi.flags = llfi->flags; |
| 1229 | |
| 1230 | err = -ENOENT; |
| 1231 | pthread_rwlock_rdlock(&f->tree_lock); |
| 1232 | path = get_path(f, ino); |
| 1233 | if (path != NULL) { |
| 1234 | err = f->op.opendir(path, &fi); |
| 1235 | dh->fh = fi.fh; |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1236 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1237 | if (!err) { |
| 1238 | pthread_mutex_lock(&f->lock); |
| 1239 | if (fuse_reply_open(req, llfi) == -ENOENT) { |
| 1240 | /* The opendir syscall was interrupted, so it must be |
| 1241 | cancelled */ |
| 1242 | if(f->op.releasedir) |
| 1243 | f->op.releasedir(path, &fi); |
| 1244 | pthread_mutex_destroy(&dh->lock); |
| 1245 | free(dh); |
| 1246 | } |
| 1247 | pthread_mutex_unlock(&f->lock); |
| 1248 | } else { |
| 1249 | reply_err(req, err); |
| 1250 | free(dh); |
| 1251 | } |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1252 | free(path); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1253 | pthread_rwlock_unlock(&f->tree_lock); |
| 1254 | } else |
| 1255 | fuse_reply_open(req, llfi); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1256 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 1257 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1258 | static int fill_dir_common(struct fuse_dirhandle *dh, const char *name, |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 1259 | const struct stat *statp, off_t off) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1260 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1261 | struct stat stbuf; |
| 1262 | unsigned namelen = strlen(name); |
| 1263 | unsigned entsize; |
| 1264 | unsigned newlen; |
Miklos Szeredi | 1b18802 | 2005-07-28 11:07:29 +0000 | [diff] [blame] | 1265 | char *newptr; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1266 | |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 1267 | if (statp) |
| 1268 | stbuf = *statp; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1269 | else { |
| 1270 | memset(&stbuf, 0, sizeof(stbuf)); |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 1271 | stbuf.st_ino = (ino_t) -1; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1272 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1273 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1274 | if (!(dh->fuse->flags & FUSE_USE_INO)) { |
| 1275 | stbuf.st_ino = (ino_t) -1; |
| 1276 | if (dh->fuse->flags & FUSE_READDIR_INO) { |
| 1277 | struct node *node; |
| 1278 | pthread_mutex_lock(&dh->fuse->lock); |
| 1279 | node = lookup_node(dh->fuse, dh->nodeid, name); |
| 1280 | if (node) |
| 1281 | stbuf.st_ino = (ino_t) node->nodeid; |
| 1282 | pthread_mutex_unlock(&dh->fuse->lock); |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1283 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1284 | } |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1285 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1286 | entsize = fuse_dirent_size(namelen); |
| 1287 | newlen = dh->len + entsize; |
| 1288 | |
| 1289 | if (off) { |
| 1290 | dh->filled = 0; |
| 1291 | if (newlen > dh->needlen) |
| 1292 | return 1; |
| 1293 | } |
| 1294 | |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 1295 | newptr = (char *) realloc(dh->contents, newlen); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1296 | if (!newptr) { |
| 1297 | dh->error = -ENOMEM; |
| 1298 | return 1; |
| 1299 | } |
| 1300 | dh->contents = newptr; |
| 1301 | fuse_add_dirent(dh->contents + dh->len, name, &stbuf, off ? off : newlen); |
| 1302 | dh->len = newlen; |
| 1303 | return 0; |
| 1304 | } |
| 1305 | |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 1306 | static int fill_dir(void *buf, const char *name, const struct stat *stbuf, |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1307 | off_t off) |
| 1308 | { |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 1309 | return fill_dir_common((struct fuse_dirhandle *) buf, name, stbuf, off); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1310 | } |
| 1311 | |
| 1312 | static int fill_dir_old(struct fuse_dirhandle *dh, const char *name, int type, |
| 1313 | ino_t ino) |
| 1314 | { |
| 1315 | struct stat stbuf; |
| 1316 | |
| 1317 | memset(&stbuf, 0, sizeof(stbuf)); |
| 1318 | stbuf.st_mode = type << 12; |
| 1319 | stbuf.st_ino = ino; |
| 1320 | |
| 1321 | fill_dir_common(dh, name, &stbuf, 0); |
| 1322 | return dh->error; |
| 1323 | } |
| 1324 | |
| 1325 | static int readdir_fill(struct fuse *f, fuse_ino_t ino, size_t size, |
| 1326 | off_t off, struct fuse_dirhandle *dh, |
| 1327 | struct fuse_file_info *fi) |
| 1328 | { |
| 1329 | int err = -ENOENT; |
| 1330 | char *path; |
| 1331 | pthread_rwlock_rdlock(&f->tree_lock); |
| 1332 | path = get_path(f, ino); |
| 1333 | if (path != NULL) { |
| 1334 | dh->len = 0; |
| 1335 | dh->error = 0; |
| 1336 | dh->needlen = size; |
| 1337 | dh->filled = 1; |
| 1338 | err = -ENOSYS; |
| 1339 | if (f->op.readdir) |
| 1340 | err = f->op.readdir(path, dh, fill_dir, off, fi); |
| 1341 | else if (f->op.getdir) |
| 1342 | err = f->op.getdir(path, dh, fill_dir_old); |
| 1343 | if (!err) |
| 1344 | err = dh->error; |
| 1345 | if (err) |
| 1346 | dh->filled = 0; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1347 | free(path); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1348 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1349 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1350 | return err; |
| 1351 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1352 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1353 | static void fuse_readdir(fuse_req_t req, fuse_ino_t ino, size_t size, |
| 1354 | off_t off, struct fuse_file_info *llfi) |
| 1355 | { |
| 1356 | struct fuse *f = req_fuse_prepare(req); |
| 1357 | struct fuse_file_info fi; |
| 1358 | struct fuse_dirhandle *dh = get_dirhandle(llfi, &fi); |
| 1359 | |
| 1360 | pthread_mutex_lock(&dh->lock); |
| 1361 | if (!dh->filled) { |
| 1362 | int err = readdir_fill(f, ino, size, off, dh, &fi); |
| 1363 | if (err) { |
| 1364 | reply_err(req, err); |
| 1365 | goto out; |
| 1366 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1367 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1368 | if (dh->filled) { |
| 1369 | if (off < dh->len) { |
| 1370 | if (off + size > dh->len) |
| 1371 | size = dh->len - off; |
| 1372 | } else |
| 1373 | size = 0; |
| 1374 | } else { |
| 1375 | size = dh->len; |
| 1376 | off = 0; |
| 1377 | } |
| 1378 | fuse_reply_buf(req, dh->contents + off, size); |
| 1379 | out: |
| 1380 | pthread_mutex_unlock(&dh->lock); |
| 1381 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1382 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1383 | static void fuse_releasedir(fuse_req_t req, fuse_ino_t ino, |
| 1384 | struct fuse_file_info *llfi) |
| 1385 | { |
| 1386 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | 9b813af | 2005-07-21 07:59:37 +0000 | [diff] [blame] | 1387 | struct fuse_file_info fi; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1388 | struct fuse_dirhandle *dh = get_dirhandle(llfi, &fi); |
| 1389 | if (f->op.releasedir) { |
| 1390 | char *path; |
| 1391 | |
| 1392 | pthread_rwlock_rdlock(&f->tree_lock); |
| 1393 | path = get_path(f, ino); |
| 1394 | f->op.releasedir(path ? path : "-", &fi); |
| 1395 | free(path); |
| 1396 | pthread_rwlock_unlock(&f->tree_lock); |
| 1397 | } |
| 1398 | pthread_mutex_lock(&dh->lock); |
| 1399 | pthread_mutex_unlock(&dh->lock); |
| 1400 | pthread_mutex_destroy(&dh->lock); |
| 1401 | free(dh->contents); |
| 1402 | free(dh); |
| 1403 | reply_err(req, 0); |
| 1404 | } |
| 1405 | |
| 1406 | static void fuse_fsyncdir(fuse_req_t req, fuse_ino_t ino, int datasync, |
| 1407 | struct fuse_file_info *llfi) |
| 1408 | { |
| 1409 | struct fuse *f = req_fuse_prepare(req); |
| 1410 | struct fuse_file_info fi; |
| 1411 | char *path; |
| 1412 | int err; |
| 1413 | |
| 1414 | get_dirhandle(llfi, &fi); |
| 1415 | |
| 1416 | err = -ENOENT; |
| 1417 | pthread_rwlock_rdlock(&f->tree_lock); |
| 1418 | path = get_path(f, ino); |
| 1419 | if (path != NULL) { |
| 1420 | err = -ENOSYS; |
| 1421 | if (f->op.fsyncdir) |
| 1422 | err = f->op.fsyncdir(path, datasync, &fi); |
| 1423 | free(path); |
| 1424 | } |
| 1425 | pthread_rwlock_unlock(&f->tree_lock); |
| 1426 | reply_err(req, err); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1427 | } |
| 1428 | |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1429 | static int default_statfs(struct statfs *buf) |
| 1430 | { |
| 1431 | buf->f_namelen = 255; |
| 1432 | buf->f_bsize = 512; |
| 1433 | return 0; |
| 1434 | } |
| 1435 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1436 | static void convert_statfs_compat(struct fuse_statfs_compat1 *compatbuf, |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 1437 | struct statfs *stbuf) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1438 | { |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 1439 | stbuf->f_bsize = compatbuf->block_size; |
| 1440 | stbuf->f_blocks = compatbuf->blocks; |
| 1441 | stbuf->f_bfree = compatbuf->blocks_free; |
| 1442 | stbuf->f_bavail = compatbuf->blocks_free; |
| 1443 | stbuf->f_files = compatbuf->files; |
| 1444 | stbuf->f_ffree = compatbuf->files_free; |
| 1445 | stbuf->f_namelen = compatbuf->namelen; |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1446 | } |
| 1447 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1448 | static void fuse_statfs(fuse_req_t req) |
Miklos Szeredi | 18e75e4 | 2004-02-19 14:23:27 +0000 | [diff] [blame] | 1449 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1450 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | 18e75e4 | 2004-02-19 14:23:27 +0000 | [diff] [blame] | 1451 | struct statfs buf; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1452 | int err; |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1453 | |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1454 | memset(&buf, 0, sizeof(struct statfs)); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1455 | if (f->op.statfs) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1456 | if (!f->compat || f->compat > 11) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1457 | err = f->op.statfs("/", &buf); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1458 | else { |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1459 | struct fuse_statfs_compat1 compatbuf; |
| 1460 | memset(&compatbuf, 0, sizeof(struct fuse_statfs_compat1)); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1461 | err = ((struct fuse_operations_compat1 *) &f->op)->statfs(&compatbuf); |
| 1462 | if (!err) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1463 | convert_statfs_compat(&compatbuf, &buf); |
| 1464 | } |
| 1465 | } |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1466 | else |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1467 | err = default_statfs(&buf); |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1468 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1469 | if (!err) |
| 1470 | fuse_reply_statfs(req, &buf); |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1471 | else |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1472 | reply_err(req, err); |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1473 | } |
| 1474 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1475 | static void fuse_setxattr(fuse_req_t req, fuse_ino_t ino, const char *name, |
| 1476 | const char *value, size_t size, int flags) |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1477 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1478 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1479 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1480 | int err; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1481 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1482 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1483 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1484 | path = get_path(f, ino); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1485 | if (path != NULL) { |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1486 | err = -ENOSYS; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1487 | if (f->op.setxattr) |
| 1488 | err = f->op.setxattr(path, name, value, size, flags); |
| 1489 | free(path); |
| 1490 | } |
| 1491 | pthread_rwlock_unlock(&f->tree_lock); |
| 1492 | reply_err(req, err); |
| 1493 | } |
| 1494 | |
| 1495 | static int common_getxattr(struct fuse *f, fuse_ino_t ino, const char *name, |
| 1496 | char *value, size_t size) |
| 1497 | { |
| 1498 | int err; |
| 1499 | char *path; |
| 1500 | |
| 1501 | err = -ENOENT; |
| 1502 | pthread_rwlock_rdlock(&f->tree_lock); |
| 1503 | path = get_path(f, ino); |
| 1504 | if (path != NULL) { |
| 1505 | err = -ENOSYS; |
| 1506 | if (f->op.getxattr) |
| 1507 | err = f->op.getxattr(path, name, value, size); |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1508 | free(path); |
| 1509 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1510 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1511 | return err; |
| 1512 | } |
| 1513 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1514 | static void fuse_getxattr(fuse_req_t req, fuse_ino_t ino, const char *name, |
| 1515 | size_t size) |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1516 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1517 | struct fuse *f = req_fuse_prepare(req); |
Miklos Szeredi | 4283ee7 | 2005-03-21 12:09:04 +0000 | [diff] [blame] | 1518 | int res; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1519 | |
| 1520 | if (size) { |
| 1521 | char *value = (char *) malloc(size); |
| 1522 | if (value == NULL) { |
| 1523 | reply_err(req, -ENOMEM); |
| 1524 | return; |
| 1525 | } |
| 1526 | res = common_getxattr(f, ino, name, value, size); |
| 1527 | if (res > 0) |
| 1528 | fuse_reply_buf(req, value, res); |
| 1529 | else |
| 1530 | reply_err(req, res); |
| 1531 | free(value); |
| 1532 | } else { |
| 1533 | res = common_getxattr(f, ino, name, NULL, 0); |
| 1534 | if (res >= 0) |
| 1535 | fuse_reply_xattr(req, res); |
| 1536 | else |
| 1537 | reply_err(req, res); |
| 1538 | } |
| 1539 | } |
| 1540 | |
| 1541 | static int common_listxattr(struct fuse *f, fuse_ino_t ino, char *list, |
| 1542 | size_t size) |
| 1543 | { |
Miklos Szeredi | 4283ee7 | 2005-03-21 12:09:04 +0000 | [diff] [blame] | 1544 | char *path; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1545 | int err; |
Miklos Szeredi | 4283ee7 | 2005-03-21 12:09:04 +0000 | [diff] [blame] | 1546 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1547 | err = -ENOENT; |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1548 | pthread_rwlock_rdlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1549 | path = get_path(f, ino); |
Miklos Szeredi | 4283ee7 | 2005-03-21 12:09:04 +0000 | [diff] [blame] | 1550 | if (path != NULL) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1551 | err = -ENOSYS; |
| 1552 | if (f->op.listxattr) |
| 1553 | err = f->op.listxattr(path, list, size); |
Miklos Szeredi | 4283ee7 | 2005-03-21 12:09:04 +0000 | [diff] [blame] | 1554 | free(path); |
| 1555 | } |
Miklos Szeredi | c2a33ee | 2005-05-09 13:29:17 +0000 | [diff] [blame] | 1556 | pthread_rwlock_unlock(&f->tree_lock); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1557 | return err; |
Miklos Szeredi | 4283ee7 | 2005-03-21 12:09:04 +0000 | [diff] [blame] | 1558 | } |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1559 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1560 | static void fuse_listxattr(fuse_req_t req, fuse_ino_t ino, size_t size) |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1561 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1562 | struct fuse *f = req_fuse_prepare(req); |
| 1563 | int res; |
| 1564 | |
| 1565 | if (size) { |
| 1566 | char *list = (char *) malloc(size); |
| 1567 | if (list == NULL) { |
| 1568 | reply_err(req, -ENOMEM); |
| 1569 | return; |
| 1570 | } |
| 1571 | res = common_listxattr(f, ino, list, size); |
| 1572 | if (res > 0) |
| 1573 | fuse_reply_buf(req, list, res); |
| 1574 | else |
| 1575 | reply_err(req, res); |
| 1576 | free(list); |
| 1577 | } else { |
| 1578 | res = common_listxattr(f, ino, NULL, 0); |
| 1579 | if (res >= 0) |
| 1580 | fuse_reply_xattr(req, res); |
| 1581 | else |
| 1582 | reply_err(req, res); |
| 1583 | } |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1584 | } |
| 1585 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1586 | static void fuse_removexattr(fuse_req_t req, fuse_ino_t ino, const char *name) |
| 1587 | { |
| 1588 | struct fuse *f = req_fuse_prepare(req); |
| 1589 | char *path; |
| 1590 | int err; |
| 1591 | |
| 1592 | err = -ENOENT; |
| 1593 | pthread_rwlock_rdlock(&f->tree_lock); |
| 1594 | path = get_path(f, ino); |
| 1595 | if (path != NULL) { |
| 1596 | err = -ENOSYS; |
| 1597 | if (f->op.removexattr) |
| 1598 | err = f->op.removexattr(path, name); |
| 1599 | free(path); |
| 1600 | } |
| 1601 | pthread_rwlock_unlock(&f->tree_lock); |
| 1602 | reply_err(req, err); |
| 1603 | } |
| 1604 | |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1605 | static struct fuse_lowlevel_ops fuse_path_ops = { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1606 | .init = fuse_data_init, |
| 1607 | .destroy = fuse_data_destroy, |
| 1608 | .lookup = fuse_lookup, |
| 1609 | .forget = fuse_forget, |
| 1610 | .getattr = fuse_getattr, |
| 1611 | .setattr = fuse_setattr, |
Miklos Szeredi | 7b28eae | 2005-08-01 12:48:30 +0000 | [diff] [blame] | 1612 | .access = fuse_access, |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1613 | .readlink = fuse_readlink, |
| 1614 | .mknod = fuse_mknod, |
| 1615 | .mkdir = fuse_mkdir, |
| 1616 | .unlink = fuse_unlink, |
| 1617 | .rmdir = fuse_rmdir, |
| 1618 | .symlink = fuse_symlink, |
| 1619 | .rename = fuse_rename, |
| 1620 | .link = fuse_link, |
| 1621 | .open = fuse_open, |
| 1622 | .read = fuse_read, |
| 1623 | .write = fuse_write, |
| 1624 | .flush = fuse_flush, |
| 1625 | .release = fuse_release, |
| 1626 | .fsync = fuse_fsync, |
| 1627 | .opendir = fuse_opendir, |
| 1628 | .readdir = fuse_readdir, |
| 1629 | .releasedir = fuse_releasedir, |
| 1630 | .fsyncdir = fuse_fsyncdir, |
| 1631 | .statfs = fuse_statfs, |
| 1632 | .setxattr = fuse_setxattr, |
| 1633 | .getxattr = fuse_getxattr, |
| 1634 | .listxattr = fuse_listxattr, |
| 1635 | .removexattr = fuse_removexattr, |
| 1636 | }; |
| 1637 | |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1638 | static void free_cmd(struct fuse_cmd *cmd) |
| 1639 | { |
| 1640 | free(cmd->buf); |
| 1641 | free(cmd); |
| 1642 | } |
| 1643 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1644 | void fuse_process_cmd(struct fuse *f, struct fuse_cmd *cmd) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1645 | { |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1646 | struct fuse_chan *ch = fuse_session_next_chan(f->se, NULL); |
| 1647 | fuse_session_process(f->se, cmd->buf, cmd->buflen, ch); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1648 | } |
| 1649 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1650 | int fuse_exited(struct fuse *f) |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1651 | { |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1652 | return fuse_session_exited(f->se); |
| 1653 | } |
| 1654 | |
| 1655 | struct fuse_session *fuse_get_session(struct fuse *f) |
| 1656 | { |
| 1657 | return f->se; |
| 1658 | } |
| 1659 | |
| 1660 | static struct fuse_cmd *fuse_alloc_cmd(size_t bufsize) |
| 1661 | { |
| 1662 | struct fuse_cmd *cmd = (struct fuse_cmd *) malloc(sizeof(*cmd)); |
| 1663 | if (cmd == NULL) { |
| 1664 | fprintf(stderr, "fuse: failed to allocate cmd\n"); |
| 1665 | return NULL; |
| 1666 | } |
| 1667 | cmd->buf = (char *) malloc(bufsize); |
| 1668 | if (cmd->buf == NULL) { |
| 1669 | fprintf(stderr, "fuse: failed to allocate read buffer\n"); |
| 1670 | free(cmd); |
| 1671 | return NULL; |
| 1672 | } |
| 1673 | return cmd; |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1674 | } |
| 1675 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1676 | struct fuse_cmd *fuse_read_cmd(struct fuse *f) |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1677 | { |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1678 | struct fuse_chan *ch = fuse_session_next_chan(f->se, NULL); |
| 1679 | size_t bufsize = fuse_chan_bufsize(ch); |
| 1680 | struct fuse_cmd *cmd = fuse_alloc_cmd(bufsize); |
| 1681 | if (cmd != NULL) { |
| 1682 | int res = fuse_chan_receive(ch, cmd->buf, bufsize); |
| 1683 | if (res <= 0) { |
| 1684 | free_cmd(cmd); |
| 1685 | return NULL; |
| 1686 | } |
| 1687 | cmd->buflen = res; |
| 1688 | } |
| 1689 | return cmd; |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1690 | } |
| 1691 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1692 | int fuse_loop(struct fuse *f) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1693 | { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1694 | if (f) |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1695 | return fuse_session_loop(f->se); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1696 | else |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1697 | return -1; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1698 | } |
| 1699 | |
Miklos Szeredi | 891b874 | 2004-07-29 09:27:49 +0000 | [diff] [blame] | 1700 | int fuse_invalidate(struct fuse *f, const char *path) |
| 1701 | { |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1702 | (void) f; |
| 1703 | (void) path; |
| 1704 | return -EINVAL; |
Miklos Szeredi | 891b874 | 2004-07-29 09:27:49 +0000 | [diff] [blame] | 1705 | } |
| 1706 | |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1707 | void fuse_exit(struct fuse *f) |
| 1708 | { |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1709 | fuse_session_exit(f->se); |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1710 | } |
| 1711 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1712 | struct fuse_context *fuse_get_context() |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1713 | { |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1714 | static struct fuse_context context; |
| 1715 | if (fuse_getcontext) |
| 1716 | return fuse_getcontext(); |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1717 | else |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1718 | return &context; |
| 1719 | } |
| 1720 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1721 | void fuse_set_getcontext_func(struct fuse_context *(*func)(void)) |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1722 | { |
| 1723 | fuse_getcontext = func; |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1724 | } |
| 1725 | |
Miklos Szeredi | e331c4b | 2005-07-06 13:34:02 +0000 | [diff] [blame] | 1726 | static int begins_with(const char *s, const char *beg) |
| 1727 | { |
| 1728 | if (strncmp(s, beg, strlen(beg)) == 0) |
| 1729 | return 1; |
| 1730 | else |
| 1731 | return 0; |
| 1732 | } |
| 1733 | |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1734 | int fuse_is_lib_option(const char *opt) |
| 1735 | { |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1736 | if (fuse_lowlevel_is_lib_option(opt) || |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1737 | strcmp(opt, "debug") == 0 || |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1738 | strcmp(opt, "hard_remove") == 0 || |
Miklos Szeredi | 0111f9d | 2005-04-22 12:04:55 +0000 | [diff] [blame] | 1739 | strcmp(opt, "use_ino") == 0 || |
Miklos Szeredi | 33be22d | 2005-05-27 09:12:43 +0000 | [diff] [blame] | 1740 | strcmp(opt, "allow_root") == 0 || |
Miklos Szeredi | e331c4b | 2005-07-06 13:34:02 +0000 | [diff] [blame] | 1741 | strcmp(opt, "readdir_ino") == 0 || |
Miklos Szeredi | e77cc07 | 2005-08-01 11:58:51 +0000 | [diff] [blame] | 1742 | strcmp(opt, "direct_io") == 0 || |
| 1743 | strcmp(opt, "kernel_cache") == 0 || |
Miklos Szeredi | e331c4b | 2005-07-06 13:34:02 +0000 | [diff] [blame] | 1744 | begins_with(opt, "umask=") || |
| 1745 | begins_with(opt, "uid=") || |
Miklos Szeredi | 6c0209a | 2005-08-02 13:31:28 +0000 | [diff] [blame] | 1746 | begins_with(opt, "gid=") || |
| 1747 | begins_with(opt, "entry_timeout=") || |
| 1748 | begins_with(opt, "attr_timeout=")) |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1749 | return 1; |
| 1750 | else |
| 1751 | return 0; |
| 1752 | } |
| 1753 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1754 | static int parse_lib_opts(struct fuse *f, const char *opts, char **llopts) |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1755 | { |
| 1756 | if (opts) { |
| 1757 | char *xopts = strdup(opts); |
| 1758 | char *s = xopts; |
| 1759 | char *opt; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1760 | char *d = xopts; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1761 | |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1762 | if (xopts == NULL) { |
| 1763 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1764 | return -1; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1765 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1766 | |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1767 | while((opt = strsep(&s, ","))) { |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1768 | if (fuse_lowlevel_is_lib_option(opt)) { |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1769 | size_t optlen = strlen(opt); |
| 1770 | if (strcmp(opt, "debug") == 0) |
Miklos Szeredi | 9b813af | 2005-07-21 07:59:37 +0000 | [diff] [blame] | 1771 | f->flags |= FUSE_DEBUG; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1772 | memmove(d, opt, optlen); |
| 1773 | d += optlen; |
| 1774 | *d++ = ','; |
| 1775 | } else if (strcmp(opt, "hard_remove") == 0) |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1776 | f->flags |= FUSE_HARD_REMOVE; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1777 | else if (strcmp(opt, "use_ino") == 0) |
| 1778 | f->flags |= FUSE_USE_INO; |
Miklos Szeredi | 33be22d | 2005-05-27 09:12:43 +0000 | [diff] [blame] | 1779 | else if (strcmp(opt, "readdir_ino") == 0) |
| 1780 | f->flags |= FUSE_READDIR_INO; |
Miklos Szeredi | e77cc07 | 2005-08-01 11:58:51 +0000 | [diff] [blame] | 1781 | else if (strcmp(opt, "direct_io") == 0) |
| 1782 | f->flags |= FUSE_DIRECT_IO; |
| 1783 | else if (strcmp(opt, "kernel_cache") == 0) |
| 1784 | f->flags |= FUSE_KERNEL_CACHE; |
Miklos Szeredi | e331c4b | 2005-07-06 13:34:02 +0000 | [diff] [blame] | 1785 | else if (sscanf(opt, "umask=%o", &f->umask) == 1) |
| 1786 | f->flags |= FUSE_SET_MODE; |
| 1787 | else if (sscanf(opt, "uid=%u", &f->uid) == 1) |
| 1788 | f->flags |= FUSE_SET_UID; |
| 1789 | else if(sscanf(opt, "gid=%u", &f->gid) == 1) |
| 1790 | f->flags |= FUSE_SET_GID; |
Miklos Szeredi | 6c0209a | 2005-08-02 13:31:28 +0000 | [diff] [blame] | 1791 | else if (sscanf(opt, "entry_timeout=%lf", &f->entry_timeout) == 1) |
| 1792 | /* nop */; |
| 1793 | else if (sscanf(opt, "attr_timeout=%lf", &f->attr_timeout) == 1) |
| 1794 | /* nop */; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1795 | else |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1796 | fprintf(stderr, "fuse: warning: unknown option `%s'\n", opt); |
| 1797 | } |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1798 | if (d != xopts) { |
| 1799 | d[-1] = '\0'; |
| 1800 | *llopts = xopts; |
| 1801 | } |
| 1802 | else |
| 1803 | free(xopts); |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1804 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1805 | return 0; |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1806 | } |
| 1807 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1808 | struct fuse *fuse_new_common(int fd, const char *opts, |
| 1809 | const struct fuse_operations *op, |
| 1810 | size_t op_size, int compat) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1811 | { |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1812 | struct fuse_chan *ch; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1813 | struct fuse *f; |
| 1814 | struct node *root; |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1815 | char *llopts = NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1816 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1817 | if (sizeof(struct fuse_operations) < op_size) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1818 | fprintf(stderr, "fuse: warning: library too old, some operations may not not work\n"); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1819 | op_size = sizeof(struct fuse_operations); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1820 | } |
| 1821 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1822 | f = (struct fuse *) calloc(1, sizeof(struct fuse)); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1823 | if (f == NULL) { |
| 1824 | fprintf(stderr, "fuse: failed to allocate fuse object\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1825 | goto out; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1826 | } |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1827 | |
Miklos Szeredi | 6c0209a | 2005-08-02 13:31:28 +0000 | [diff] [blame] | 1828 | f->entry_timeout = 1.0; |
| 1829 | f->attr_timeout = 1.0; |
| 1830 | |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1831 | if (parse_lib_opts(f, opts, &llopts) == -1) |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1832 | goto out_free; |
| 1833 | |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1834 | f->se = fuse_lowlevel_new(llopts, &fuse_path_ops, sizeof(fuse_path_ops), f); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1835 | free(llopts); |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1836 | if (f->se == NULL) |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1837 | goto out_free; |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1838 | |
| 1839 | ch = fuse_kern_chan_new(fd); |
| 1840 | if (ch == NULL) |
| 1841 | goto out_free_session; |
| 1842 | |
| 1843 | fuse_session_add_chan(f->se, ch); |
Miklos Szeredi | bd10a7b | 2005-07-15 09:59:59 +0000 | [diff] [blame] | 1844 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1845 | f->ctr = 0; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1846 | f->generation = 0; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1847 | /* FIXME: Dynamic hash table */ |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1848 | f->name_table_size = 14057; |
| 1849 | f->name_table = (struct node **) |
| 1850 | calloc(1, sizeof(struct node *) * f->name_table_size); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1851 | if (f->name_table == NULL) { |
| 1852 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1853 | goto out_free_session; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1854 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1855 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1856 | f->id_table_size = 14057; |
| 1857 | f->id_table = (struct node **) |
| 1858 | calloc(1, sizeof(struct node *) * f->id_table_size); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1859 | if (f->id_table == NULL) { |
| 1860 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1861 | goto out_free_name_table; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1862 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1863 | |
Miklos Szeredi | ab97456 | 2005-04-07 15:40:21 +0000 | [diff] [blame] | 1864 | mutex_init(&f->lock); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1865 | memcpy(&f->op, op, op_size); |
| 1866 | f->compat = compat; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1867 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1868 | root = (struct node *) calloc(1, sizeof(struct node)); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1869 | if (root == NULL) { |
| 1870 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1871 | goto out_free_id_table; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1872 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1873 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1874 | root->name = strdup("/"); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1875 | if (root->name == NULL) { |
| 1876 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1877 | goto out_free_root; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1878 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1879 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1880 | root->parent = 0; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1881 | root->nodeid = FUSE_ROOT_ID; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1882 | root->generation = 0; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1883 | root->refctr = 1; |
Miklos Szeredi | 3800902 | 2005-05-08 19:47:22 +0000 | [diff] [blame] | 1884 | root->nlookup = 1; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1885 | hash_id(f, root); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1886 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1887 | return f; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1888 | |
| 1889 | out_free_root: |
| 1890 | free(root); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1891 | out_free_id_table: |
| 1892 | free(f->id_table); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1893 | out_free_name_table: |
| 1894 | free(f->name_table); |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1895 | out_free_session: |
| 1896 | fuse_session_destroy(f->se); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1897 | out_free: |
| 1898 | free(f); |
| 1899 | out: |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1900 | return NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1901 | } |
| 1902 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1903 | struct fuse *fuse_new(int fd, const char *opts, |
| 1904 | const struct fuse_operations *op, size_t op_size) |
| 1905 | { |
| 1906 | return fuse_new_common(fd, opts, op, op_size, 0); |
| 1907 | } |
| 1908 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1909 | struct fuse *fuse_new_compat2(int fd, const char *opts, |
| 1910 | const struct fuse_operations_compat2 *op) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1911 | { |
| 1912 | return fuse_new_common(fd, opts, (struct fuse_operations *) op, |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1913 | sizeof(struct fuse_operations_compat2), 21); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1914 | } |
| 1915 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1916 | struct fuse *fuse_new_compat1(int fd, int flags, |
| 1917 | const struct fuse_operations_compat1 *op) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1918 | { |
Miklos Szeredi | f6e0ec6 | 2005-08-03 09:11:06 +0000 | [diff] [blame] | 1919 | const char *opts = NULL; |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1920 | if (flags & FUSE_DEBUG_COMPAT1) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1921 | opts = "debug"; |
| 1922 | return fuse_new_common(fd, opts, (struct fuse_operations *) op, |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1923 | sizeof(struct fuse_operations_compat1), 11); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1924 | } |
| 1925 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1926 | void fuse_destroy(struct fuse *f) |
| 1927 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1928 | size_t i; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1929 | for (i = 0; i < f->id_table_size; i++) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1930 | struct node *node; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1931 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1932 | for (node = f->id_table[i]; node != NULL; node = node->id_next) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1933 | if (node->is_hidden) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1934 | char *path = get_path(f, node->nodeid); |
Miklos Szeredi | 21019c9 | 2005-05-09 11:22:41 +0000 | [diff] [blame] | 1935 | if (path) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1936 | f->op.unlink(path); |
Miklos Szeredi | 21019c9 | 2005-05-09 11:22:41 +0000 | [diff] [blame] | 1937 | free(path); |
| 1938 | } |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1939 | } |
| 1940 | } |
| 1941 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1942 | for (i = 0; i < f->id_table_size; i++) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1943 | struct node *node; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1944 | struct node *next; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1945 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1946 | for (node = f->id_table[i]; node != NULL; node = next) { |
| 1947 | next = node->id_next; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1948 | free_node(node); |
| 1949 | } |
| 1950 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1951 | free(f->id_table); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1952 | free(f->name_table); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1953 | pthread_mutex_destroy(&f->lock); |
Miklos Szeredi | a148242 | 2005-08-14 23:00:27 +0000 | [diff] [blame^] | 1954 | fuse_session_destroy(f->se); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1955 | free(f); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1956 | } |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1957 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1958 | __asm__(".symver fuse_exited,__fuse_exited@"); |
| 1959 | __asm__(".symver fuse_process_cmd,__fuse_process_cmd@"); |
| 1960 | __asm__(".symver fuse_read_cmd,__fuse_read_cmd@"); |
| 1961 | __asm__(".symver fuse_set_getcontext_func,__fuse_set_getcontext_func@"); |
| 1962 | __asm__(".symver fuse_new_compat2,fuse_new@"); |