Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | FUSE: Filesystem in Userspace |
Miklos Szeredi | 2e6b6f2 | 2004-07-07 19:19:53 +0000 | [diff] [blame] | 3 | Copyright (C) 2001-2004 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 | cb26451 | 2004-06-23 18:52:50 +0000 | [diff] [blame] | 9 | #include <config.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 10 | #include "fuse_i.h" |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 11 | #include "fuse_compat.h" |
Miklos Szeredi | b9b94cd | 2004-12-01 18:56:39 +0000 | [diff] [blame] | 12 | #include "fuse_kernel.h" |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 13 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 14 | #include <stdio.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 15 | #include <string.h> |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 16 | #include <stdlib.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 17 | #include <unistd.h> |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 18 | #include <limits.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 19 | #include <errno.h> |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 20 | #include <assert.h> |
| 21 | #include <stdint.h> |
Miklos Szeredi | 019b4e9 | 2001-12-26 18:08:09 +0000 | [diff] [blame] | 22 | #include <sys/param.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 23 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 24 | /* FUSE flags: */ |
| 25 | |
| 26 | /** Enable debuging output */ |
| 27 | #define FUSE_DEBUG (1 << 1) |
| 28 | |
| 29 | /** If a file is removed but it's still open, don't hide the file but |
| 30 | remove it immediately */ |
| 31 | #define FUSE_HARD_REMOVE (1 << 2) |
| 32 | |
| 33 | /** Use st_ino field in getattr instead of generating inode numbers */ |
| 34 | #define FUSE_USE_INO (1 << 3) |
| 35 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 36 | #define FUSE_KERNEL_MINOR_VERSION_NEED 1 |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 37 | #define FUSE_VERSION_FILE_OLD "/proc/fs/fuse/version" |
Miklos Szeredi | 162bcbb | 2004-11-29 23:43:44 +0000 | [diff] [blame] | 38 | #define FUSE_VERSION_FILE_NEW "/sys/fs/fuse/version" |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 39 | #define FUSE_DEV_OLD "/proc/fs/fuse/dev" |
| 40 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 41 | #define FUSE_MAX_PATH 4096 |
Miklos Szeredi | 6bf8b68 | 2002-10-28 08:49:39 +0000 | [diff] [blame] | 42 | #define PARAM(inarg) (((char *)(inarg)) + sizeof(*inarg)) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 43 | |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 44 | #define ENTRY_REVALIDATE_TIME 1 /* sec */ |
| 45 | #define ATTR_REVALIDATE_TIME 1 /* sec */ |
| 46 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 47 | |
| 48 | struct node { |
| 49 | struct node *name_next; |
| 50 | struct node *id_next; |
| 51 | nodeid_t nodeid; |
| 52 | unsigned int generation; |
| 53 | int refctr; |
| 54 | nodeid_t parent; |
| 55 | char *name; |
| 56 | uint64_t version; |
| 57 | int open_count; |
| 58 | int is_hidden; |
| 59 | }; |
| 60 | |
| 61 | struct fuse_dirhandle { |
| 62 | struct fuse *fuse; |
| 63 | nodeid_t dir; |
| 64 | FILE *fp; |
| 65 | }; |
| 66 | |
| 67 | struct fuse_cmd { |
| 68 | char *buf; |
| 69 | size_t buflen; |
| 70 | }; |
| 71 | |
| 72 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 73 | static struct fuse_context *(*fuse_getcontext)(void) = NULL; |
| 74 | |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 75 | static const char *opname(enum fuse_opcode opcode) |
| 76 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 77 | switch (opcode) { |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 78 | case FUSE_LOOKUP: return "LOOKUP"; |
| 79 | case FUSE_FORGET: return "FORGET"; |
| 80 | case FUSE_GETATTR: return "GETATTR"; |
| 81 | case FUSE_SETATTR: return "SETATTR"; |
| 82 | case FUSE_READLINK: return "READLINK"; |
| 83 | case FUSE_SYMLINK: return "SYMLINK"; |
| 84 | case FUSE_GETDIR: return "GETDIR"; |
| 85 | case FUSE_MKNOD: return "MKNOD"; |
| 86 | case FUSE_MKDIR: return "MKDIR"; |
| 87 | case FUSE_UNLINK: return "UNLINK"; |
| 88 | case FUSE_RMDIR: return "RMDIR"; |
| 89 | case FUSE_RENAME: return "RENAME"; |
| 90 | case FUSE_LINK: return "LINK"; |
| 91 | case FUSE_OPEN: return "OPEN"; |
| 92 | case FUSE_READ: return "READ"; |
| 93 | case FUSE_WRITE: return "WRITE"; |
| 94 | case FUSE_STATFS: return "STATFS"; |
Miklos Szeredi | 99f2074 | 2004-05-19 08:01:10 +0000 | [diff] [blame] | 95 | case FUSE_FLUSH: return "FLUSH"; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 96 | case FUSE_RELEASE: return "RELEASE"; |
| 97 | case FUSE_FSYNC: return "FSYNC"; |
| 98 | case FUSE_SETXATTR: return "SETXATTR"; |
| 99 | case FUSE_GETXATTR: return "GETXATTR"; |
| 100 | case FUSE_LISTXATTR: return "LISTXATTR"; |
| 101 | case FUSE_REMOVEXATTR: return "REMOVEXATTR"; |
Miklos Szeredi | 99f2074 | 2004-05-19 08:01:10 +0000 | [diff] [blame] | 102 | default: return "???"; |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 103 | } |
| 104 | } |
| 105 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 106 | static inline void fuse_dec_avail(struct fuse *f) |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 107 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 108 | pthread_mutex_lock(&f->worker_lock); |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 109 | f->numavail --; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 110 | pthread_mutex_unlock(&f->worker_lock); |
| 111 | } |
| 112 | |
| 113 | static inline void fuse_inc_avail(struct fuse *f) |
| 114 | { |
| 115 | pthread_mutex_lock(&f->worker_lock); |
| 116 | f->numavail ++; |
| 117 | pthread_mutex_unlock(&f->worker_lock); |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 118 | } |
| 119 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 120 | static struct node *get_node_nocheck(struct fuse *f, nodeid_t nodeid) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 121 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 122 | size_t hash = nodeid % f->id_table_size; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 123 | struct node *node; |
| 124 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 125 | for (node = f->id_table[hash]; node != NULL; node = node->id_next) |
| 126 | if (node->nodeid == nodeid) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 127 | return node; |
| 128 | |
| 129 | return NULL; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 130 | } |
| 131 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 132 | static struct node *get_node(struct fuse *f, nodeid_t nodeid) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 133 | { |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 134 | struct node *node = get_node_nocheck(f, nodeid); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 135 | if (!node) { |
| 136 | fprintf(stderr, "fuse internal error: node %lu not found\n", |
| 137 | nodeid); |
| 138 | abort(); |
| 139 | } |
| 140 | return node; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 141 | } |
| 142 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 143 | static void free_node(struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 144 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 145 | free(node->name); |
| 146 | free(node); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 147 | } |
| 148 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 149 | static void unhash_id(struct fuse *f, struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 150 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 151 | size_t hash = node->nodeid % f->id_table_size; |
| 152 | struct node **nodep = &f->id_table[hash]; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 153 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 154 | for (; *nodep != NULL; nodep = &(*nodep)->id_next) |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 155 | if (*nodep == node) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 156 | *nodep = node->id_next; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 157 | return; |
| 158 | } |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 159 | } |
| 160 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 161 | static void hash_id(struct fuse *f, struct node *node) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 162 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 163 | size_t hash = node->nodeid % f->id_table_size; |
| 164 | node->id_next = f->id_table[hash]; |
| 165 | f->id_table[hash] = node; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 166 | } |
| 167 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 168 | static unsigned int name_hash(struct fuse *f, nodeid_t parent, const char *name) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 169 | { |
| 170 | unsigned int hash = *name; |
| 171 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 172 | if (hash) |
| 173 | for (name += 1; *name != '\0'; name++) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 174 | hash = (hash << 5) - hash + *name; |
| 175 | |
| 176 | return (hash + parent) % f->name_table_size; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 177 | } |
| 178 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 179 | static void unref_node(struct fuse *f, struct node *node); |
| 180 | |
| 181 | static void unhash_name(struct fuse *f, struct node *node) |
| 182 | { |
| 183 | if (node->name) { |
| 184 | size_t hash = name_hash(f, node->parent, node->name); |
| 185 | struct node **nodep = &f->name_table[hash]; |
| 186 | |
| 187 | for (; *nodep != NULL; nodep = &(*nodep)->name_next) |
| 188 | if (*nodep == node) { |
| 189 | *nodep = node->name_next; |
| 190 | node->name_next = NULL; |
| 191 | unref_node(f, get_node(f, node->parent)); |
| 192 | free(node->name); |
| 193 | node->name = NULL; |
| 194 | node->parent = 0; |
| 195 | return; |
| 196 | } |
| 197 | fprintf(stderr, "fuse internal error: unable to unhash node: %lu\n", |
| 198 | node->nodeid); |
| 199 | abort(); |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | static int hash_name(struct fuse *f, struct node *node, nodeid_t parent, |
| 204 | const char *name) |
| 205 | { |
| 206 | size_t hash = name_hash(f, parent, name); |
| 207 | node->name = strdup(name); |
| 208 | if (node->name == NULL) |
| 209 | return -1; |
| 210 | |
| 211 | get_node(f, parent)->refctr ++; |
| 212 | node->parent = parent; |
| 213 | node->name_next = f->name_table[hash]; |
| 214 | f->name_table[hash] = node; |
| 215 | return 0; |
| 216 | } |
| 217 | |
| 218 | static void delete_node(struct fuse *f, struct node *node) |
| 219 | { |
| 220 | assert(!node->name); |
| 221 | unhash_id(f, node); |
| 222 | free_node(node); |
| 223 | } |
| 224 | |
| 225 | static void unref_node(struct fuse *f, struct node *node) |
| 226 | { |
| 227 | assert(node->refctr > 0); |
| 228 | node->refctr --; |
| 229 | if (!node->refctr) |
| 230 | delete_node(f, node); |
| 231 | } |
| 232 | |
| 233 | static nodeid_t next_id(struct fuse *f) |
| 234 | { |
| 235 | do { |
| 236 | f->ctr++; |
| 237 | if (!f->ctr) |
| 238 | f->generation ++; |
| 239 | } while (f->ctr == 0 || get_node_nocheck(f, f->ctr) != NULL); |
| 240 | return f->ctr; |
| 241 | } |
| 242 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 243 | static struct node *lookup_node(struct fuse *f, nodeid_t parent, |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 244 | const char *name) |
| 245 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 246 | size_t hash = name_hash(f, parent, name); |
| 247 | struct node *node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 248 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 249 | for (node = f->name_table[hash]; node != NULL; node = node->name_next) |
| 250 | if (node->parent == parent && strcmp(node->name, name) == 0) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 251 | return node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 252 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 253 | return NULL; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 254 | } |
| 255 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 256 | static struct node *find_node(struct fuse *f, nodeid_t parent, char *name, |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 257 | struct fuse_attr *attr, uint64_t version) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 258 | { |
| 259 | struct node *node; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 260 | int mode = attr->mode & S_IFMT; |
| 261 | int rdev = 0; |
| 262 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 263 | if (S_ISCHR(mode) || S_ISBLK(mode)) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 264 | rdev = attr->rdev; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 265 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 266 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 267 | node = lookup_node(f, parent, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 268 | if (node != NULL) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 269 | if (!(f->flags & FUSE_USE_INO)) |
| 270 | attr->ino = node->nodeid; |
| 271 | } else { |
| 272 | node = (struct node *) calloc(1, sizeof(struct node)); |
| 273 | if (node == NULL) |
| 274 | goto out_err; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 275 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 276 | node->refctr = 1; |
| 277 | node->nodeid = next_id(f); |
| 278 | if (!(f->flags & FUSE_USE_INO)) |
| 279 | attr->ino = node->nodeid; |
| 280 | node->open_count = 0; |
| 281 | node->is_hidden = 0; |
| 282 | node->generation = f->generation; |
| 283 | if (hash_name(f, node, parent, name) == -1) { |
| 284 | free(node); |
| 285 | node = NULL; |
| 286 | goto out_err; |
| 287 | } |
| 288 | hash_id(f, node); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 289 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 290 | node->version = version; |
Miklos Szeredi | c230991 | 2004-09-21 13:40:38 +0000 | [diff] [blame] | 291 | out_err: |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 292 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 293 | return node; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 294 | } |
| 295 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 296 | static char *add_name(char *buf, char *s, const char *name) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 297 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 298 | size_t len = strlen(name); |
| 299 | s -= len; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 300 | if (s <= buf) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 301 | fprintf(stderr, "fuse: path too long: ...%s\n", s + len); |
| 302 | return NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 303 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 304 | strncpy(s, name, len); |
| 305 | s--; |
| 306 | *s = '/'; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 307 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 308 | return s; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 309 | } |
| 310 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 311 | static char *get_path_name(struct fuse *f, nodeid_t nodeid, const char *name) |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 312 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 313 | char buf[FUSE_MAX_PATH]; |
| 314 | char *s = buf + FUSE_MAX_PATH - 1; |
| 315 | struct node *node; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 316 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 317 | *s = '\0'; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 318 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 319 | if (name != NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 320 | s = add_name(buf, s, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 321 | if (s == NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 322 | return NULL; |
| 323 | } |
| 324 | |
| 325 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 326 | for (node = get_node(f, nodeid); node && node->nodeid != FUSE_ROOT_ID; |
| 327 | node = get_node(f, node->parent)) { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 328 | if (node->name == NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 329 | s = NULL; |
| 330 | break; |
| 331 | } |
| 332 | |
| 333 | s = add_name(buf, s, node->name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 334 | if (s == NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 335 | break; |
| 336 | } |
| 337 | pthread_mutex_unlock(&f->lock); |
| 338 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 339 | if (node == NULL || s == NULL) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 340 | return NULL; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 341 | else if (*s == '\0') |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 342 | return strdup("/"); |
| 343 | else |
| 344 | return strdup(s); |
| 345 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 346 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 347 | static char *get_path(struct fuse *f, nodeid_t nodeid) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 348 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 349 | return get_path_name(f, nodeid, NULL); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 350 | } |
| 351 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 352 | static void forget_node(struct fuse *f, nodeid_t nodeid, uint64_t version) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 353 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 354 | struct node *node; |
| 355 | |
| 356 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 357 | node = get_node(f, nodeid); |
| 358 | if (node->version == version && nodeid != FUSE_ROOT_ID) { |
| 359 | node->version = 0; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 360 | unhash_name(f, node); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 361 | unref_node(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 362 | } |
| 363 | pthread_mutex_unlock(&f->lock); |
| 364 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 365 | } |
| 366 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 367 | static void remove_node(struct fuse *f, nodeid_t dir, const char *name) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 368 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 369 | struct node *node; |
| 370 | |
| 371 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 372 | node = lookup_node(f, dir, name); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 373 | if (node != NULL) |
| 374 | unhash_name(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 375 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 376 | } |
| 377 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 378 | static int rename_node(struct fuse *f, nodeid_t olddir, const char *oldname, |
| 379 | nodeid_t newdir, const char *newname, int hide) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 380 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 381 | struct node *node; |
| 382 | struct node *newnode; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 383 | int err = 0; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 384 | |
| 385 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 386 | node = lookup_node(f, olddir, oldname); |
| 387 | newnode = lookup_node(f, newdir, newname); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 388 | if (node == NULL) |
| 389 | goto out; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 390 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 391 | if (newnode != NULL) { |
| 392 | if (hide) { |
| 393 | fprintf(stderr, "fuse: hidden file got created during hiding\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 394 | err = -EBUSY; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 395 | goto out; |
| 396 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 397 | unhash_name(f, newnode); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 398 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 399 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 400 | unhash_name(f, node); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 401 | if (hash_name(f, node, newdir, newname) == -1) { |
| 402 | err = -ENOMEM; |
| 403 | goto out; |
| 404 | } |
| 405 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 406 | if (hide) |
| 407 | node->is_hidden = 1; |
| 408 | |
| 409 | out: |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 410 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 411 | return err; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 412 | } |
| 413 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 414 | static void convert_stat(struct stat *stbuf, struct fuse_attr *attr) |
| 415 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 416 | attr->ino = stbuf->st_ino; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 417 | attr->mode = stbuf->st_mode; |
| 418 | attr->nlink = stbuf->st_nlink; |
| 419 | attr->uid = stbuf->st_uid; |
| 420 | attr->gid = stbuf->st_gid; |
| 421 | attr->rdev = stbuf->st_rdev; |
| 422 | attr->size = stbuf->st_size; |
| 423 | attr->blocks = stbuf->st_blocks; |
| 424 | attr->atime = stbuf->st_atime; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 425 | attr->mtime = stbuf->st_mtime; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 426 | attr->ctime = stbuf->st_ctime; |
Miklos Szeredi | cb26451 | 2004-06-23 18:52:50 +0000 | [diff] [blame] | 427 | #ifdef HAVE_STRUCT_STAT_ST_ATIM |
| 428 | attr->atimensec = stbuf->st_atim.tv_nsec; |
| 429 | attr->mtimensec = stbuf->st_mtim.tv_nsec; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 430 | attr->ctimensec = stbuf->st_ctim.tv_nsec; |
Miklos Szeredi | cb26451 | 2004-06-23 18:52:50 +0000 | [diff] [blame] | 431 | #endif |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 432 | } |
| 433 | |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 434 | static int fill_dir(struct fuse_dirhandle *dh, const char *name, int type, |
| 435 | ino_t ino) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 436 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 437 | size_t namelen = strlen(name); |
| 438 | struct fuse_dirent *dirent; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 439 | size_t reclen; |
| 440 | size_t res; |
| 441 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 442 | if (namelen > FUSE_NAME_MAX) |
| 443 | namelen = FUSE_NAME_MAX; |
| 444 | |
| 445 | dirent = calloc(1, sizeof(struct fuse_dirent) + namelen + 8); |
| 446 | if (dirent == NULL) |
| 447 | return -ENOMEM; |
| 448 | |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 449 | if ((dh->fuse->flags & FUSE_USE_INO)) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 450 | dirent->ino = ino; |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 451 | else |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 452 | dirent->ino = (unsigned long) -1; |
| 453 | dirent->namelen = namelen; |
| 454 | strncpy(dirent->name, name, namelen); |
| 455 | dirent->type = type; |
| 456 | reclen = FUSE_DIRENT_SIZE(dirent); |
| 457 | res = fwrite(dirent, reclen, 1, dh->fp); |
| 458 | free(dirent); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 459 | if (res == 0) { |
Miklos Szeredi | 9624998 | 2001-11-21 12:21:19 +0000 | [diff] [blame] | 460 | perror("fuse: writing directory file"); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 461 | return -EIO; |
| 462 | } |
| 463 | return 0; |
| 464 | } |
| 465 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 466 | static int send_reply_raw(struct fuse *f, char *outbuf, size_t outsize) |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 467 | { |
| 468 | int res; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 469 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 470 | out->len = outsize; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 471 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 472 | if ((f->flags & FUSE_DEBUG)) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 473 | printf(" unique: %llu, error: %i (%s), outsize: %i\n", |
| 474 | out->unique, out->error, strerror(-out->error), outsize); |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 475 | fflush(stdout); |
| 476 | } |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 477 | |
Miklos Szeredi | 4e71c9f | 2004-02-09 12:05:14 +0000 | [diff] [blame] | 478 | /* This needs to be done before the reply, otherwise the scheduler |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 479 | could play tricks with us, and only let the counter be |
| 480 | increased long after the operation is done */ |
| 481 | fuse_inc_avail(f); |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 482 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 483 | res = write(f->fd, outbuf, outsize); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 484 | if (res == -1) { |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 485 | /* ENOENT means the operation was interrupted */ |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 486 | if (!f->exited && errno != ENOENT) |
Miklos Szeredi | 9624998 | 2001-11-21 12:21:19 +0000 | [diff] [blame] | 487 | perror("fuse: writing device"); |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 488 | return -errno; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 489 | } |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 490 | return 0; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 491 | } |
| 492 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 493 | static int send_reply(struct fuse *f, struct fuse_in_header *in, int error, |
| 494 | void *arg, size_t argsize) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 495 | { |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 496 | int res; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 497 | char *outbuf; |
| 498 | size_t outsize; |
| 499 | struct fuse_out_header *out; |
| 500 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 501 | if (error <= -1000 || error > 0) { |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 502 | fprintf(stderr, "fuse: bad error value: %i\n", error); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 503 | error = -ERANGE; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 504 | } |
| 505 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 506 | if (error) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 507 | argsize = 0; |
| 508 | |
| 509 | outsize = sizeof(struct fuse_out_header) + argsize; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 510 | outbuf = (char *) malloc(outsize); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 511 | if (outbuf == NULL) { |
| 512 | fprintf(stderr, "fuse: failed to allocate reply buffer\n"); |
| 513 | res = -ENOMEM; |
| 514 | } else { |
| 515 | out = (struct fuse_out_header *) outbuf; |
| 516 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 517 | out->unique = in->unique; |
| 518 | out->error = error; |
| 519 | if (argsize != 0) |
| 520 | memcpy(outbuf + sizeof(struct fuse_out_header), arg, argsize); |
| 521 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 522 | res = send_reply_raw(f, outbuf, outsize); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 523 | free(outbuf); |
| 524 | } |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 525 | |
| 526 | return res; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 527 | } |
| 528 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 529 | static int is_open(struct fuse *f, nodeid_t dir, const char *name) |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 530 | { |
| 531 | struct node *node; |
| 532 | int isopen = 0; |
| 533 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 534 | node = lookup_node(f, dir, name); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 535 | if (node && node->open_count > 0) |
| 536 | isopen = 1; |
| 537 | pthread_mutex_unlock(&f->lock); |
| 538 | return isopen; |
| 539 | } |
| 540 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 541 | static char *hidden_name(struct fuse *f, nodeid_t dir, const char *oldname, |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 542 | char *newname, size_t bufsize) |
| 543 | { |
| 544 | struct stat buf; |
| 545 | struct node *node; |
| 546 | struct node *newnode; |
| 547 | char *newpath; |
| 548 | int res; |
| 549 | int failctr = 10; |
| 550 | |
| 551 | if (!f->op.getattr) |
| 552 | return NULL; |
| 553 | |
| 554 | do { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 555 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 556 | node = lookup_node(f, dir, oldname); |
| 557 | if (node == NULL) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 558 | pthread_mutex_unlock(&f->lock); |
| 559 | return NULL; |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 560 | } |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 561 | do { |
| 562 | f->hidectr ++; |
| 563 | snprintf(newname, bufsize, ".fuse_hidden%08x%08x", |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 564 | (unsigned int) node->nodeid, f->hidectr); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 565 | newnode = lookup_node(f, dir, newname); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 566 | } while(newnode); |
| 567 | pthread_mutex_unlock(&f->lock); |
| 568 | |
| 569 | newpath = get_path_name(f, dir, newname); |
| 570 | if (!newpath) |
| 571 | break; |
| 572 | |
| 573 | res = f->op.getattr(newpath, &buf); |
| 574 | if (res != 0) |
| 575 | break; |
| 576 | free(newpath); |
| 577 | newpath = NULL; |
| 578 | } while(--failctr); |
| 579 | |
| 580 | return newpath; |
| 581 | } |
| 582 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 583 | static int hide_node(struct fuse *f, const char *oldpath, nodeid_t dir, |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 584 | const char *oldname) |
| 585 | { |
| 586 | char newname[64]; |
| 587 | char *newpath; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 588 | int err = -EBUSY; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 589 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 590 | if (f->op.rename && f->op.unlink) { |
| 591 | newpath = hidden_name(f, dir, oldname, newname, sizeof(newname)); |
| 592 | if (newpath) { |
| 593 | int res = f->op.rename(oldpath, newpath); |
| 594 | if (res == 0) |
| 595 | err = rename_node(f, dir, oldname, dir, newname, 1); |
| 596 | free(newpath); |
| 597 | } |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 598 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 599 | return err; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 600 | } |
| 601 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 602 | static int lookup_path(struct fuse *f, nodeid_t nodeid, uint64_t version, |
| 603 | char *name, const char *path, |
| 604 | struct fuse_entry_out *arg) |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 605 | { |
| 606 | int res; |
| 607 | struct stat buf; |
| 608 | |
| 609 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 610 | if (res == 0) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 611 | struct node *node; |
| 612 | |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 613 | memset(arg, 0, sizeof(struct fuse_entry_out)); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 614 | convert_stat(&buf, &arg->attr); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 615 | node = find_node(f, nodeid, name, &arg->attr, version); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 616 | if (node == NULL) |
| 617 | res = -ENOMEM; |
| 618 | else { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 619 | arg->nodeid = node->nodeid; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 620 | arg->generation = node->generation; |
| 621 | arg->entry_valid = ENTRY_REVALIDATE_TIME; |
| 622 | arg->entry_valid_nsec = 0; |
| 623 | arg->attr_valid = ATTR_REVALIDATE_TIME; |
| 624 | arg->attr_valid_nsec = 0; |
| 625 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 626 | printf(" NODEID: %lu\n", (unsigned long) arg->nodeid); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 627 | fflush(stdout); |
| 628 | } |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 629 | } |
| 630 | } |
| 631 | return res; |
| 632 | } |
| 633 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 634 | static void do_lookup(struct fuse *f, struct fuse_in_header *in, char *name) |
| 635 | { |
| 636 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 637 | int res2; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 638 | char *path; |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 639 | struct fuse_entry_out arg; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 640 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 641 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 642 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 643 | if (path != NULL) { |
| 644 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 645 | printf("LOOKUP %s\n", path); |
| 646 | fflush(stdout); |
| 647 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 648 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 649 | if (f->op.getattr) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 650 | res = lookup_path(f, in->nodeid, in->unique, name, path, &arg); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 651 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 652 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 653 | res2 = send_reply(f, in, res, &arg, sizeof(arg)); |
| 654 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 655 | forget_node(f, arg.nodeid, in->unique); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 656 | } |
| 657 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 658 | static void do_forget(struct fuse *f, struct fuse_in_header *in, |
| 659 | struct fuse_forget_in *arg) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 660 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 661 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 662 | printf("FORGET %lu/%llu\n", (unsigned long) in->nodeid, |
| 663 | arg->version); |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 664 | fflush(stdout); |
| 665 | } |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 666 | forget_node(f, in->nodeid, arg->version); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 667 | } |
| 668 | |
| 669 | static void do_getattr(struct fuse *f, struct fuse_in_header *in) |
| 670 | { |
| 671 | int res; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 672 | char *path; |
| 673 | struct stat buf; |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 674 | struct fuse_attr_out arg; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 675 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 676 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 677 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 678 | if (path != NULL) { |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 679 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 680 | if (f->op.getattr) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 681 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 682 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 683 | } |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 684 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 685 | if (res == 0) { |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 686 | memset(&arg, 0, sizeof(struct fuse_attr_out)); |
| 687 | arg.attr_valid = ATTR_REVALIDATE_TIME; |
| 688 | arg.attr_valid_nsec = 0; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 689 | convert_stat(&buf, &arg.attr); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 690 | if (!(f->flags & FUSE_USE_INO)) |
| 691 | arg.attr.ino = in->nodeid; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 692 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 693 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 694 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 695 | } |
| 696 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 697 | static int do_chmod(struct fuse *f, const char *path, struct fuse_attr *attr) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 698 | { |
| 699 | int res; |
| 700 | |
| 701 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 702 | if (f->op.chmod) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 703 | res = f->op.chmod(path, attr->mode); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 704 | |
| 705 | return res; |
| 706 | } |
| 707 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 708 | static int do_chown(struct fuse *f, const char *path, struct fuse_attr *attr, |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 709 | int valid) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 710 | { |
| 711 | int res; |
| 712 | uid_t uid = (valid & FATTR_UID) ? attr->uid : (uid_t) -1; |
| 713 | gid_t gid = (valid & FATTR_GID) ? attr->gid : (gid_t) -1; |
| 714 | |
| 715 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 716 | if (f->op.chown) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 717 | res = f->op.chown(path, uid, gid); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 718 | |
| 719 | return res; |
| 720 | } |
| 721 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 722 | static int do_truncate(struct fuse *f, const char *path, |
| 723 | struct fuse_attr *attr) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 724 | { |
| 725 | int res; |
| 726 | |
| 727 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 728 | if (f->op.truncate) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 729 | res = f->op.truncate(path, attr->size); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 730 | |
| 731 | return res; |
| 732 | } |
| 733 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 734 | static int do_utime(struct fuse *f, const char *path, struct fuse_attr *attr) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 735 | { |
| 736 | int res; |
| 737 | struct utimbuf buf; |
| 738 | buf.actime = attr->atime; |
| 739 | buf.modtime = attr->mtime; |
| 740 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 741 | if (f->op.utime) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 742 | res = f->op.utime(path, &buf); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 743 | |
| 744 | return res; |
| 745 | } |
| 746 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 747 | static void do_setattr(struct fuse *f, struct fuse_in_header *in, |
| 748 | struct fuse_setattr_in *arg) |
| 749 | { |
| 750 | int res; |
| 751 | char *path; |
| 752 | int valid = arg->valid; |
| 753 | struct fuse_attr *attr = &arg->attr; |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 754 | struct fuse_attr_out outarg; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 755 | |
| 756 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 757 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 758 | if (path != NULL) { |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 759 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 760 | if (f->op.getattr) { |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 761 | res = 0; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 762 | if (!res && (valid & FATTR_MODE)) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 763 | res = do_chmod(f, path, attr); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 764 | if (!res && (valid & (FATTR_UID | FATTR_GID))) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 765 | res = do_chown(f, path, attr, valid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 766 | if (!res && (valid & FATTR_SIZE)) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 767 | res = do_truncate(f, path, attr); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 768 | if (!res && (valid & (FATTR_ATIME | FATTR_MTIME)) == |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 769 | (FATTR_ATIME | FATTR_MTIME)) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 770 | res = do_utime(f, path, attr); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 771 | if (!res) { |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 772 | struct stat buf; |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 773 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 774 | if (!res) { |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 775 | memset(&outarg, 0, sizeof(struct fuse_attr_out)); |
| 776 | outarg.attr_valid = ATTR_REVALIDATE_TIME; |
| 777 | outarg.attr_valid_nsec = 0; |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 778 | convert_stat(&buf, &outarg.attr); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 779 | if (!(f->flags & FUSE_USE_INO)) |
| 780 | outarg.attr.ino = in->nodeid; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 781 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 782 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 783 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 784 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 785 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 786 | send_reply(f, in, res, &outarg, sizeof(outarg)); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 787 | } |
| 788 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 789 | static void do_readlink(struct fuse *f, struct fuse_in_header *in) |
| 790 | { |
| 791 | int res; |
| 792 | char link[PATH_MAX + 1]; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 793 | char *path; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 794 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 795 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 796 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 797 | if (path != NULL) { |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 798 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 799 | if (f->op.readlink) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 800 | res = f->op.readlink(path, link, sizeof(link)); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 801 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 802 | } |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 803 | link[PATH_MAX] = '\0'; |
Miklos Szeredi | 4b2bef4 | 2002-01-09 12:23:27 +0000 | [diff] [blame] | 804 | send_reply(f, in, res, link, res == 0 ? strlen(link) : 0); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 805 | } |
| 806 | |
| 807 | static void do_getdir(struct fuse *f, struct fuse_in_header *in) |
| 808 | { |
| 809 | int res; |
| 810 | struct fuse_getdir_out arg; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 811 | struct fuse_dirhandle dh; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 812 | char *path; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 813 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 814 | dh.fuse = f; |
| 815 | dh.fp = tmpfile(); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 816 | dh.dir = in->nodeid; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 817 | |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 818 | res = -EIO; |
| 819 | if (dh.fp == NULL) |
| 820 | perror("fuse: failed to create temporary file"); |
| 821 | else { |
| 822 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 823 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 824 | if (path != NULL) { |
| 825 | res = -ENOSYS; |
| 826 | if (f->op.getdir) |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 827 | res = f->op.getdir(path, &dh, fill_dir); |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 828 | free(path); |
| 829 | } |
| 830 | fflush(dh.fp); |
| 831 | } |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 832 | memset(&arg, 0, sizeof(struct fuse_getdir_out)); |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 833 | if (res == 0) |
| 834 | arg.fd = fileno(dh.fp); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 835 | send_reply(f, in, res, &arg, sizeof(arg)); |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 836 | if (dh.fp != NULL) |
| 837 | fclose(dh.fp); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 838 | } |
| 839 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 840 | static void do_mknod(struct fuse *f, struct fuse_in_header *in, |
| 841 | struct fuse_mknod_in *inarg) |
| 842 | { |
| 843 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 844 | int res2; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 845 | char *path; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 846 | char *name = PARAM(inarg); |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 847 | struct fuse_entry_out outarg; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 848 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 849 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 850 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 851 | if (path != NULL) { |
| 852 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 853 | printf("MKNOD %s\n", path); |
| 854 | fflush(stdout); |
| 855 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 856 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 857 | if (f->op.mknod && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 858 | res = f->op.mknod(path, inarg->mode, inarg->rdev); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 859 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 860 | res = lookup_path(f, in->nodeid, in->unique, name, path, &outarg); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 861 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 862 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 863 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 864 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 865 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 866 | forget_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 867 | } |
| 868 | |
| 869 | static void do_mkdir(struct fuse *f, struct fuse_in_header *in, |
| 870 | struct fuse_mkdir_in *inarg) |
| 871 | { |
| 872 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 873 | int res2; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 874 | char *path; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 875 | char *name = PARAM(inarg); |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 876 | struct fuse_entry_out outarg; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 877 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 878 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 879 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 880 | if (path != NULL) { |
| 881 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 882 | printf("MKDIR %s\n", path); |
| 883 | fflush(stdout); |
| 884 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 885 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 886 | if (f->op.mkdir && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 887 | res = f->op.mkdir(path, inarg->mode); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 888 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 889 | res = lookup_path(f, in->nodeid, in->unique, name, path, &outarg); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 890 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 891 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 892 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 893 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 894 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 895 | forget_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 896 | } |
| 897 | |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 898 | static void do_unlink(struct fuse *f, struct fuse_in_header *in, char *name) |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 899 | { |
| 900 | int res; |
| 901 | char *path; |
| 902 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 903 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 904 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 905 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 906 | if (f->flags & FUSE_DEBUG) { |
| 907 | printf("UNLINK %s\n", path); |
| 908 | fflush(stdout); |
| 909 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 910 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 911 | if (f->op.unlink) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 912 | if (!(f->flags & FUSE_HARD_REMOVE) && is_open(f, in->nodeid, name)) |
| 913 | res = hide_node(f, path, in->nodeid, name); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 914 | else { |
| 915 | res = f->op.unlink(path); |
| 916 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 917 | remove_node(f, in->nodeid, name); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 918 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 919 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 920 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 921 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 922 | } |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 923 | send_reply(f, in, res, NULL, 0); |
| 924 | } |
| 925 | |
| 926 | static void do_rmdir(struct fuse *f, struct fuse_in_header *in, char *name) |
| 927 | { |
| 928 | int res; |
| 929 | char *path; |
| 930 | |
| 931 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 932 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 933 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 934 | if (f->flags & FUSE_DEBUG) { |
| 935 | printf("RMDIR %s\n", path); |
| 936 | fflush(stdout); |
| 937 | } |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 938 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 939 | if (f->op.rmdir) { |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 940 | res = f->op.rmdir(path); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 941 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 942 | remove_node(f, in->nodeid, name); |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 943 | } |
| 944 | free(path); |
| 945 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 946 | send_reply(f, in, res, NULL, 0); |
| 947 | } |
| 948 | |
| 949 | static void do_symlink(struct fuse *f, struct fuse_in_header *in, char *name, |
| 950 | char *link) |
| 951 | { |
| 952 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 953 | int res2; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 954 | char *path; |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 955 | struct fuse_entry_out outarg; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 956 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 957 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 958 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 959 | if (path != NULL) { |
| 960 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 961 | printf("SYMLINK %s\n", path); |
| 962 | fflush(stdout); |
| 963 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 964 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 965 | if (f->op.symlink && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 966 | res = f->op.symlink(link, path); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 967 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 968 | res = lookup_path(f, in->nodeid, in->unique, name, path, &outarg); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 969 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 970 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 971 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 972 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 973 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 974 | forget_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 975 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 976 | } |
| 977 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 978 | static void do_rename(struct fuse *f, struct fuse_in_header *in, |
| 979 | struct fuse_rename_in *inarg) |
| 980 | { |
| 981 | int res; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 982 | nodeid_t olddir = in->nodeid; |
| 983 | nodeid_t newdir = inarg->newdir; |
Miklos Szeredi | 6bf8b68 | 2002-10-28 08:49:39 +0000 | [diff] [blame] | 984 | char *oldname = PARAM(inarg); |
| 985 | char *newname = oldname + strlen(oldname) + 1; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 986 | char *oldpath; |
| 987 | char *newpath; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 988 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 989 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 990 | oldpath = get_path_name(f, olddir, oldname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 991 | if (oldpath != NULL) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 992 | newpath = get_path_name(f, newdir, newname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 993 | if (newpath != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 994 | if (f->flags & FUSE_DEBUG) { |
| 995 | printf("RENAME %s -> %s\n", oldpath, newpath); |
| 996 | fflush(stdout); |
| 997 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 998 | res = -ENOSYS; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 999 | if (f->op.rename) { |
| 1000 | res = 0; |
Miklos Szeredi | 2529ca2 | 2004-07-13 15:36:52 +0000 | [diff] [blame] | 1001 | if (!(f->flags & FUSE_HARD_REMOVE) && |
| 1002 | is_open(f, newdir, newname)) |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1003 | res = hide_node(f, newpath, newdir, newname); |
| 1004 | if (res == 0) { |
| 1005 | res = f->op.rename(oldpath, newpath); |
| 1006 | if (res == 0) |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1007 | res = rename_node(f, olddir, oldname, newdir, newname, 0); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1008 | } |
| 1009 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1010 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1011 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1012 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1013 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 1014 | send_reply(f, in, res, NULL, 0); |
| 1015 | } |
| 1016 | |
| 1017 | static void do_link(struct fuse *f, struct fuse_in_header *in, |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1018 | struct fuse_link_in *arg) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 1019 | { |
| 1020 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 1021 | int res2; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1022 | char *oldpath; |
| 1023 | char *newpath; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1024 | char *name = PARAM(arg); |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 1025 | struct fuse_entry_out outarg; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 1026 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1027 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1028 | oldpath = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1029 | if (oldpath != NULL) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1030 | newpath = get_path_name(f, arg->newdir, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1031 | if (newpath != NULL) { |
| 1032 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1033 | printf("LINK %s\n", newpath); |
| 1034 | fflush(stdout); |
| 1035 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1036 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1037 | if (f->op.link && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 1038 | res = f->op.link(oldpath, newpath); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1039 | if (res == 0) |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1040 | res = lookup_path(f, arg->newdir, in->unique, name, |
| 1041 | newpath, &outarg); |
| 1042 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1043 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1044 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1045 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1046 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 1047 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 1048 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1049 | forget_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 1050 | } |
| 1051 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1052 | static void do_open(struct fuse *f, struct fuse_in_header *in, |
| 1053 | struct fuse_open_in *arg) |
| 1054 | { |
| 1055 | int res; |
| 1056 | char *path; |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1057 | struct fuse_open_out outarg; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1058 | struct fuse_file_info fi; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1059 | |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1060 | memset(&fi, 0, sizeof(fi)); |
| 1061 | fi.flags = arg->flags; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1062 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1063 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1064 | if (path != NULL) { |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1065 | res = -ENOSYS; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1066 | if (f->op.open) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1067 | if (!f->compat) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1068 | res = f->op.open(path, &fi); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1069 | else |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1070 | res = ((struct fuse_operations_compat2 *) &f->op)->open(path, fi.flags); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1071 | } |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 1072 | } |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1073 | if (res == 0) { |
| 1074 | int res2; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1075 | outarg.fh = fi.fh; |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1076 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1077 | printf("OPEN[%lu] flags: 0x%x\n", fi.fh, arg->flags); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1078 | fflush(stdout); |
| 1079 | } |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1080 | |
| 1081 | pthread_mutex_lock(&f->lock); |
| 1082 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1083 | if(res2 == -ENOENT) { |
| 1084 | /* The open syscall was interrupted, so it must be cancelled */ |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1085 | if(f->op.release) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1086 | if (!f->compat) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1087 | f->op.release(path, &fi); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1088 | else |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1089 | ((struct fuse_operations_compat2 *) &f->op)->release(path, fi.flags); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1090 | } |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1091 | } else { |
| 1092 | struct node *node = get_node(f, in->nodeid); |
| 1093 | node->open_count ++; |
| 1094 | } |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1095 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1096 | } else |
| 1097 | send_reply(f, in, res, NULL, 0); |
| 1098 | |
Miklos Szeredi | 9a31cca | 2004-06-26 21:11:25 +0000 | [diff] [blame] | 1099 | if (path) |
| 1100 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1101 | } |
| 1102 | |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1103 | static void do_flush(struct fuse *f, struct fuse_in_header *in, |
| 1104 | struct fuse_flush_in *arg) |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1105 | { |
| 1106 | char *path; |
| 1107 | int res; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1108 | struct fuse_file_info fi; |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1109 | |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1110 | memset(&fi, 0, sizeof(fi)); |
| 1111 | fi.fh = arg->fh; |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1112 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1113 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1114 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1115 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1116 | printf("FLUSH[%lu]\n", (unsigned long) arg->fh); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1117 | fflush(stdout); |
| 1118 | } |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1119 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1120 | if (f->op.flush) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1121 | res = f->op.flush(path, &fi); |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1122 | free(path); |
| 1123 | } |
| 1124 | send_reply(f, in, res, NULL, 0); |
| 1125 | } |
| 1126 | |
Miklos Szeredi | 9478e86 | 2002-12-11 09:50:26 +0000 | [diff] [blame] | 1127 | static void do_release(struct fuse *f, struct fuse_in_header *in, |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1128 | struct fuse_release_in *arg) |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1129 | { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1130 | struct node *node; |
| 1131 | char *path; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1132 | struct fuse_file_info fi; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1133 | int unlink_hidden; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1134 | |
| 1135 | memset(&fi, 0, sizeof(fi)); |
| 1136 | fi.flags = arg->flags; |
| 1137 | fi.fh = arg->fh; |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1138 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1139 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1140 | node = get_node(f, in->nodeid); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1141 | assert(node->open_count > 0); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1142 | --node->open_count; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1143 | unlink_hidden = (node->is_hidden && !node->open_count); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1144 | pthread_mutex_unlock(&f->lock); |
| 1145 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1146 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1147 | if (f->flags & FUSE_DEBUG) { |
| 1148 | printf("RELEASE[%lu] flags: 0x%x\n", fi.fh, fi.flags); |
| 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) |
| 1153 | f->op.release(path ? path : "-", &fi); |
| 1154 | else if (path) |
| 1155 | ((struct fuse_operations_compat2 *) &f->op)->release(path, fi.flags); |
| 1156 | } |
| 1157 | |
| 1158 | if(unlink_hidden && path) |
| 1159 | f->op.unlink(path); |
| 1160 | |
| 1161 | if (path) |
| 1162 | free(path); |
| 1163 | |
Miklos Szeredi | 556d03d | 2004-06-30 11:13:41 +0000 | [diff] [blame] | 1164 | send_reply(f, in, 0, NULL, 0); |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1165 | } |
| 1166 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1167 | static void do_read(struct fuse *f, struct fuse_in_header *in, |
| 1168 | struct fuse_read_in *arg) |
| 1169 | { |
| 1170 | int res; |
| 1171 | char *path; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1172 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + arg->size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1173 | if (outbuf == NULL) |
| 1174 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1175 | else { |
| 1176 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1177 | char *buf = outbuf + sizeof(struct fuse_out_header); |
| 1178 | size_t size; |
| 1179 | size_t outsize; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1180 | struct fuse_file_info fi; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1181 | |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1182 | memset(&fi, 0, sizeof(fi)); |
| 1183 | fi.fh = arg->fh; |
| 1184 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1185 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1186 | path = get_path(f, in->nodeid); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1187 | if (path != NULL) { |
| 1188 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1189 | printf("READ[%lu] %u bytes from %llu\n", |
| 1190 | (unsigned long) arg->fh, arg->size, arg->offset); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1191 | fflush(stdout); |
| 1192 | } |
| 1193 | |
| 1194 | res = -ENOSYS; |
| 1195 | if (f->op.read) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1196 | res = f->op.read(path, buf, arg->size, arg->offset, &fi); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1197 | free(path); |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1198 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1199 | |
| 1200 | size = 0; |
| 1201 | if (res >= 0) { |
| 1202 | size = res; |
| 1203 | res = 0; |
| 1204 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1205 | printf(" READ[%lu] %u bytes\n", (unsigned long) arg->fh, |
| 1206 | size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1207 | fflush(stdout); |
| 1208 | } |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1209 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1210 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1211 | out->unique = in->unique; |
| 1212 | out->error = res; |
| 1213 | outsize = sizeof(struct fuse_out_header) + size; |
| 1214 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1215 | send_reply_raw(f, outbuf, outsize); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1216 | free(outbuf); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1217 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1218 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 1219 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1220 | static void do_write(struct fuse *f, struct fuse_in_header *in, |
| 1221 | struct fuse_write_in *arg) |
| 1222 | { |
| 1223 | int res; |
| 1224 | char *path; |
Miklos Szeredi | ad051c3 | 2004-07-02 09:22:50 +0000 | [diff] [blame] | 1225 | struct fuse_write_out outarg; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1226 | struct fuse_file_info fi; |
| 1227 | |
| 1228 | memset(&fi, 0, sizeof(fi)); |
| 1229 | fi.fh = arg->fh; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1230 | fi.writepage = arg->write_flags & 1; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1231 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1232 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1233 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1234 | if (path != NULL) { |
| 1235 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 1eea032 | 2004-09-27 18:50:11 +0000 | [diff] [blame] | 1236 | printf("WRITE%s[%lu] %u bytes to %llu\n", |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1237 | (arg->write_flags & 1) ? "PAGE" : "", |
| 1238 | (unsigned long) arg->fh, arg->size, arg->offset); |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1239 | fflush(stdout); |
| 1240 | } |
| 1241 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1242 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1243 | if (f->op.write) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1244 | res = f->op.write(path, PARAM(arg), arg->size, arg->offset, &fi); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1245 | free(path); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1246 | } |
| 1247 | |
Miklos Szeredi | ad051c3 | 2004-07-02 09:22:50 +0000 | [diff] [blame] | 1248 | if (res >= 0) { |
| 1249 | outarg.size = res; |
| 1250 | res = 0; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1251 | } |
| 1252 | |
Miklos Szeredi | ad051c3 | 2004-07-02 09:22:50 +0000 | [diff] [blame] | 1253 | send_reply(f, in, res, &outarg, sizeof(outarg)); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1254 | } |
| 1255 | |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1256 | static int default_statfs(struct statfs *buf) |
| 1257 | { |
| 1258 | buf->f_namelen = 255; |
| 1259 | buf->f_bsize = 512; |
| 1260 | return 0; |
| 1261 | } |
| 1262 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1263 | static void convert_statfs_compat(struct fuse_statfs_compat1 *compatbuf, |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1264 | struct statfs *statfs) |
| 1265 | { |
| 1266 | statfs->f_bsize = compatbuf->block_size; |
| 1267 | statfs->f_blocks = compatbuf->blocks; |
| 1268 | statfs->f_bfree = compatbuf->blocks_free; |
| 1269 | statfs->f_bavail = compatbuf->blocks_free; |
| 1270 | statfs->f_files = compatbuf->files; |
| 1271 | statfs->f_ffree = compatbuf->files_free; |
| 1272 | statfs->f_namelen = compatbuf->namelen; |
| 1273 | } |
| 1274 | |
Miklos Szeredi | 18e75e4 | 2004-02-19 14:23:27 +0000 | [diff] [blame] | 1275 | static void convert_statfs(struct statfs *statfs, struct fuse_kstatfs *kstatfs) |
| 1276 | { |
| 1277 | kstatfs->bsize = statfs->f_bsize; |
| 1278 | kstatfs->blocks = statfs->f_blocks; |
| 1279 | kstatfs->bfree = statfs->f_bfree; |
| 1280 | kstatfs->bavail = statfs->f_bavail; |
| 1281 | kstatfs->files = statfs->f_files; |
| 1282 | kstatfs->ffree = statfs->f_ffree; |
| 1283 | kstatfs->namelen = statfs->f_namelen; |
| 1284 | } |
| 1285 | |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1286 | static void do_statfs(struct fuse *f, struct fuse_in_header *in) |
| 1287 | { |
| 1288 | int res; |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1289 | struct fuse_statfs_out arg; |
Miklos Szeredi | 18e75e4 | 2004-02-19 14:23:27 +0000 | [diff] [blame] | 1290 | struct statfs buf; |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1291 | |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1292 | memset(&buf, 0, sizeof(struct statfs)); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1293 | if (f->op.statfs) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1294 | if (!f->compat || f->compat > 11) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1295 | res = f->op.statfs("/", &buf); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1296 | else { |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1297 | struct fuse_statfs_compat1 compatbuf; |
| 1298 | memset(&compatbuf, 0, sizeof(struct fuse_statfs_compat1)); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1299 | res = ((struct fuse_operations_compat1 *) &f->op)->statfs(&compatbuf); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1300 | if (res == 0) |
| 1301 | convert_statfs_compat(&compatbuf, &buf); |
| 1302 | } |
| 1303 | } |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1304 | else |
| 1305 | res = default_statfs(&buf); |
| 1306 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1307 | if (res == 0) |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1308 | convert_statfs(&buf, &arg.st); |
Miklos Szeredi | 4b2bef4 | 2002-01-09 12:23:27 +0000 | [diff] [blame] | 1309 | |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1310 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 1311 | } |
| 1312 | |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1313 | static void do_fsync(struct fuse *f, struct fuse_in_header *in, |
| 1314 | struct fuse_fsync_in *inarg) |
| 1315 | { |
| 1316 | int res; |
| 1317 | char *path; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1318 | struct fuse_file_info fi; |
| 1319 | |
| 1320 | memset(&fi, 0, sizeof(fi)); |
| 1321 | fi.fh = inarg->fh; |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1322 | |
| 1323 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1324 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1325 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1326 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1327 | printf("FSYNC[%lu]\n", (unsigned long) inarg->fh); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1328 | fflush(stdout); |
| 1329 | } |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1330 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1331 | if (f->op.fsync) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1332 | res = f->op.fsync(path, inarg->fsync_flags & 1, &fi); |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1333 | free(path); |
| 1334 | } |
| 1335 | send_reply(f, in, res, NULL, 0); |
| 1336 | } |
| 1337 | |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1338 | static void do_setxattr(struct fuse *f, struct fuse_in_header *in, |
| 1339 | struct fuse_setxattr_in *arg) |
| 1340 | { |
| 1341 | int res; |
| 1342 | char *path; |
| 1343 | char *name = PARAM(arg); |
| 1344 | unsigned char *value = name + strlen(name) + 1; |
| 1345 | |
| 1346 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1347 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1348 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1349 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1350 | if (f->op.setxattr) |
| 1351 | res = f->op.setxattr(path, name, value, arg->size, arg->flags); |
| 1352 | free(path); |
| 1353 | } |
| 1354 | send_reply(f, in, res, NULL, 0); |
| 1355 | } |
| 1356 | |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1357 | static int common_getxattr(struct fuse *f, struct fuse_in_header *in, |
| 1358 | const char *name, char *value, size_t size) |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1359 | { |
| 1360 | int res; |
| 1361 | char *path; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1362 | |
| 1363 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1364 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1365 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1366 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1367 | if (f->op.getxattr) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1368 | res = f->op.getxattr(path, name, value, size); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1369 | free(path); |
| 1370 | } |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1371 | return res; |
| 1372 | } |
| 1373 | |
| 1374 | static void do_getxattr_read(struct fuse *f, struct fuse_in_header *in, |
| 1375 | const char *name, size_t size) |
| 1376 | { |
| 1377 | int res; |
| 1378 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1379 | if (outbuf == NULL) |
| 1380 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1381 | else { |
| 1382 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1383 | char *value = outbuf + sizeof(struct fuse_out_header); |
| 1384 | |
| 1385 | res = common_getxattr(f, in, name, value, size); |
| 1386 | size = 0; |
| 1387 | if (res > 0) { |
| 1388 | size = res; |
| 1389 | res = 0; |
| 1390 | } |
| 1391 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1392 | out->unique = in->unique; |
| 1393 | out->error = res; |
| 1394 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1395 | send_reply_raw(f, outbuf, sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1396 | free(outbuf); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1397 | } |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1398 | } |
| 1399 | |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1400 | static void do_getxattr_size(struct fuse *f, struct fuse_in_header *in, |
| 1401 | const char *name) |
| 1402 | { |
| 1403 | int res; |
| 1404 | struct fuse_getxattr_out arg; |
| 1405 | |
| 1406 | res = common_getxattr(f, in, name, NULL, 0); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1407 | if (res >= 0) { |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1408 | arg.size = res; |
| 1409 | res = 0; |
| 1410 | } |
| 1411 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 1412 | } |
| 1413 | |
| 1414 | static void do_getxattr(struct fuse *f, struct fuse_in_header *in, |
| 1415 | struct fuse_getxattr_in *arg) |
| 1416 | { |
| 1417 | char *name = PARAM(arg); |
| 1418 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1419 | if (arg->size) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1420 | do_getxattr_read(f, in, name, arg->size); |
| 1421 | else |
| 1422 | do_getxattr_size(f, in, name); |
| 1423 | } |
| 1424 | |
| 1425 | static int common_listxattr(struct fuse *f, struct fuse_in_header *in, |
| 1426 | char *list, size_t size) |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1427 | { |
| 1428 | int res; |
| 1429 | char *path; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1430 | |
| 1431 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1432 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1433 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1434 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1435 | if (f->op.listxattr) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1436 | res = f->op.listxattr(path, list, size); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1437 | free(path); |
| 1438 | } |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1439 | return res; |
| 1440 | } |
| 1441 | |
| 1442 | static void do_listxattr_read(struct fuse *f, struct fuse_in_header *in, |
| 1443 | size_t size) |
| 1444 | { |
| 1445 | int res; |
| 1446 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1447 | if (outbuf == NULL) |
| 1448 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1449 | else { |
| 1450 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1451 | char *list = outbuf + sizeof(struct fuse_out_header); |
| 1452 | |
| 1453 | res = common_listxattr(f, in, list, size); |
| 1454 | size = 0; |
| 1455 | if (res > 0) { |
| 1456 | size = res; |
| 1457 | res = 0; |
| 1458 | } |
| 1459 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1460 | out->unique = in->unique; |
| 1461 | out->error = res; |
| 1462 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1463 | send_reply_raw(f, outbuf, sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1464 | free(outbuf); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1465 | } |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1466 | } |
| 1467 | |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1468 | static void do_listxattr_size(struct fuse *f, struct fuse_in_header *in) |
| 1469 | { |
| 1470 | int res; |
| 1471 | struct fuse_getxattr_out arg; |
| 1472 | |
| 1473 | res = common_listxattr(f, in, NULL, 0); |
| 1474 | if (res >= 0) { |
| 1475 | arg.size = res; |
| 1476 | res = 0; |
| 1477 | } |
| 1478 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 1479 | } |
| 1480 | |
| 1481 | static void do_listxattr(struct fuse *f, struct fuse_in_header *in, |
| 1482 | struct fuse_getxattr_in *arg) |
| 1483 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1484 | if (arg->size) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1485 | do_listxattr_read(f, in, arg->size); |
| 1486 | else |
| 1487 | do_listxattr_size(f, in); |
| 1488 | } |
| 1489 | |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1490 | static void do_removexattr(struct fuse *f, struct fuse_in_header *in, |
| 1491 | char *name) |
| 1492 | { |
| 1493 | int res; |
| 1494 | char *path; |
| 1495 | |
| 1496 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1497 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1498 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1499 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1500 | if (f->op.removexattr) |
| 1501 | res = f->op.removexattr(path, name); |
| 1502 | free(path); |
| 1503 | } |
| 1504 | send_reply(f, in, res, NULL, 0); |
| 1505 | } |
| 1506 | |
| 1507 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1508 | static void free_cmd(struct fuse_cmd *cmd) |
| 1509 | { |
| 1510 | free(cmd->buf); |
| 1511 | free(cmd); |
| 1512 | } |
| 1513 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1514 | void fuse_process_cmd(struct fuse *f, struct fuse_cmd *cmd) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1515 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1516 | struct fuse_in_header *in = (struct fuse_in_header *) cmd->buf; |
| 1517 | void *inarg = cmd->buf + sizeof(struct fuse_in_header); |
| 1518 | size_t argsize; |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1519 | struct fuse_context *ctx = fuse_get_context(); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1520 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1521 | fuse_dec_avail(f); |
Miklos Szeredi | 3323203 | 2001-11-19 17:55:51 +0000 | [diff] [blame] | 1522 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1523 | if ((f->flags & FUSE_DEBUG)) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1524 | printf("unique: %llu, opcode: %s (%i), nodeid: %lu, insize: %i\n", |
| 1525 | in->unique, opname(in->opcode), in->opcode, |
| 1526 | (unsigned long) in->nodeid, cmd->buflen); |
Miklos Szeredi | c0938ea | 2001-11-07 12:35:06 +0000 | [diff] [blame] | 1527 | fflush(stdout); |
| 1528 | } |
Miklos Szeredi | fe25def | 2001-12-20 15:38:05 +0000 | [diff] [blame] | 1529 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1530 | ctx->fuse = f; |
Miklos Szeredi | fe25def | 2001-12-20 15:38:05 +0000 | [diff] [blame] | 1531 | ctx->uid = in->uid; |
| 1532 | ctx->gid = in->gid; |
Miklos Szeredi | 1f18db5 | 2004-09-27 06:54:49 +0000 | [diff] [blame] | 1533 | ctx->pid = in->pid; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1534 | |
| 1535 | argsize = cmd->buflen - sizeof(struct fuse_in_header); |
| 1536 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1537 | switch (in->opcode) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1538 | case FUSE_LOOKUP: |
| 1539 | do_lookup(f, in, (char *) inarg); |
| 1540 | break; |
| 1541 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1542 | case FUSE_GETATTR: |
| 1543 | do_getattr(f, in); |
| 1544 | break; |
| 1545 | |
| 1546 | case FUSE_SETATTR: |
| 1547 | do_setattr(f, in, (struct fuse_setattr_in *) inarg); |
| 1548 | break; |
| 1549 | |
| 1550 | case FUSE_READLINK: |
| 1551 | do_readlink(f, in); |
| 1552 | break; |
| 1553 | |
| 1554 | case FUSE_GETDIR: |
| 1555 | do_getdir(f, in); |
| 1556 | break; |
| 1557 | |
| 1558 | case FUSE_MKNOD: |
| 1559 | do_mknod(f, in, (struct fuse_mknod_in *) inarg); |
| 1560 | break; |
| 1561 | |
| 1562 | case FUSE_MKDIR: |
| 1563 | do_mkdir(f, in, (struct fuse_mkdir_in *) inarg); |
| 1564 | break; |
| 1565 | |
| 1566 | case FUSE_UNLINK: |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 1567 | do_unlink(f, in, (char *) inarg); |
| 1568 | break; |
| 1569 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1570 | case FUSE_RMDIR: |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 1571 | do_rmdir(f, in, (char *) inarg); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1572 | break; |
| 1573 | |
| 1574 | case FUSE_SYMLINK: |
| 1575 | do_symlink(f, in, (char *) inarg, |
| 1576 | ((char *) inarg) + strlen((char *) inarg) + 1); |
| 1577 | break; |
| 1578 | |
| 1579 | case FUSE_RENAME: |
| 1580 | do_rename(f, in, (struct fuse_rename_in *) inarg); |
| 1581 | break; |
| 1582 | |
| 1583 | case FUSE_LINK: |
| 1584 | do_link(f, in, (struct fuse_link_in *) inarg); |
| 1585 | break; |
| 1586 | |
| 1587 | case FUSE_OPEN: |
| 1588 | do_open(f, in, (struct fuse_open_in *) inarg); |
| 1589 | break; |
| 1590 | |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1591 | case FUSE_FLUSH: |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1592 | do_flush(f, in, (struct fuse_flush_in *) inarg); |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1593 | break; |
| 1594 | |
Miklos Szeredi | 9478e86 | 2002-12-11 09:50:26 +0000 | [diff] [blame] | 1595 | case FUSE_RELEASE: |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1596 | do_release(f, in, (struct fuse_release_in *) inarg); |
Miklos Szeredi | 9478e86 | 2002-12-11 09:50:26 +0000 | [diff] [blame] | 1597 | break; |
| 1598 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1599 | case FUSE_READ: |
| 1600 | do_read(f, in, (struct fuse_read_in *) inarg); |
| 1601 | break; |
| 1602 | |
| 1603 | case FUSE_WRITE: |
| 1604 | do_write(f, in, (struct fuse_write_in *) inarg); |
| 1605 | break; |
| 1606 | |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1607 | case FUSE_STATFS: |
| 1608 | do_statfs(f, in); |
| 1609 | break; |
| 1610 | |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1611 | case FUSE_FSYNC: |
| 1612 | do_fsync(f, in, (struct fuse_fsync_in *) inarg); |
| 1613 | break; |
| 1614 | |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1615 | case FUSE_SETXATTR: |
| 1616 | do_setxattr(f, in, (struct fuse_setxattr_in *) inarg); |
| 1617 | break; |
| 1618 | |
| 1619 | case FUSE_GETXATTR: |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1620 | do_getxattr(f, in, (struct fuse_getxattr_in *) inarg); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1621 | break; |
| 1622 | |
| 1623 | case FUSE_LISTXATTR: |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1624 | do_listxattr(f, in, (struct fuse_getxattr_in *) inarg); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1625 | break; |
| 1626 | |
| 1627 | case FUSE_REMOVEXATTR: |
| 1628 | do_removexattr(f, in, (char *) inarg); |
| 1629 | break; |
| 1630 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1631 | default: |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1632 | send_reply(f, in, -ENOSYS, NULL, 0); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1633 | } |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1634 | |
| 1635 | free_cmd(cmd); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1636 | } |
| 1637 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1638 | int fuse_exited(struct fuse* f) |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1639 | { |
| 1640 | return f->exited; |
| 1641 | } |
| 1642 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1643 | struct fuse_cmd *fuse_read_cmd(struct fuse *f) |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1644 | { |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1645 | ssize_t res; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1646 | struct fuse_cmd *cmd; |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1647 | struct fuse_in_header *in; |
| 1648 | void *inarg; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1649 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1650 | cmd = (struct fuse_cmd *) malloc(sizeof(struct fuse_cmd)); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1651 | if (cmd == NULL) { |
| 1652 | fprintf(stderr, "fuse: failed to allocate cmd in read\n"); |
| 1653 | return NULL; |
| 1654 | } |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1655 | cmd->buf = (char *) malloc(FUSE_MAX_IN); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1656 | if (cmd->buf == NULL) { |
| 1657 | fprintf(stderr, "fuse: failed to allocate read buffer\n"); |
| 1658 | free(cmd); |
| 1659 | return NULL; |
| 1660 | } |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1661 | in = (struct fuse_in_header *) cmd->buf; |
| 1662 | inarg = cmd->buf + sizeof(struct fuse_in_header); |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1663 | |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1664 | res = read(f->fd, cmd->buf, FUSE_MAX_IN); |
| 1665 | if (res == -1) { |
| 1666 | free_cmd(cmd); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1667 | if (fuse_exited(f) || errno == EINTR || errno == ENOENT) |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1668 | return NULL; |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1669 | |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1670 | /* ENODEV means we got unmounted, so we silenty return failure */ |
| 1671 | if (errno != ENODEV) { |
| 1672 | /* BAD... This will happen again */ |
| 1673 | perror("fuse: reading device"); |
| 1674 | } |
| 1675 | |
| 1676 | fuse_exit(f); |
| 1677 | return NULL; |
| 1678 | } |
| 1679 | if ((size_t) res < sizeof(struct fuse_in_header)) { |
| 1680 | free_cmd(cmd); |
| 1681 | /* Cannot happen */ |
| 1682 | fprintf(stderr, "short read on fuse device\n"); |
| 1683 | fuse_exit(f); |
| 1684 | return NULL; |
| 1685 | } |
| 1686 | cmd->buflen = res; |
| 1687 | |
| 1688 | /* Forget is special, it can be done without messing with threads. */ |
| 1689 | if (in->opcode == FUSE_FORGET) { |
| 1690 | do_forget(f, in, (struct fuse_forget_in *) inarg); |
| 1691 | free_cmd(cmd); |
| 1692 | return NULL; |
| 1693 | } |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1694 | |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1695 | return cmd; |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1696 | } |
| 1697 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1698 | int fuse_loop(struct fuse *f) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1699 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1700 | if (f == NULL) |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1701 | return -1; |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1702 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1703 | while (1) { |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1704 | struct fuse_cmd *cmd; |
| 1705 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1706 | if (fuse_exited(f)) |
Miklos Szeredi | 874e3c1 | 2004-11-01 23:15:20 +0000 | [diff] [blame] | 1707 | break; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1708 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1709 | cmd = fuse_read_cmd(f); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1710 | if (cmd == NULL) |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1711 | continue; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1712 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1713 | fuse_process_cmd(f, cmd); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1714 | } |
Miklos Szeredi | 874e3c1 | 2004-11-01 23:15:20 +0000 | [diff] [blame] | 1715 | f->exited = 0; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1716 | return 0; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1717 | } |
| 1718 | |
Miklos Szeredi | 891b874 | 2004-07-29 09:27:49 +0000 | [diff] [blame] | 1719 | int fuse_invalidate(struct fuse *f, const char *path) |
| 1720 | { |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1721 | (void) f; |
| 1722 | (void) path; |
| 1723 | return -EINVAL; |
Miklos Szeredi | 891b874 | 2004-07-29 09:27:49 +0000 | [diff] [blame] | 1724 | } |
| 1725 | |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1726 | void fuse_exit(struct fuse *f) |
| 1727 | { |
| 1728 | f->exited = 1; |
| 1729 | } |
| 1730 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1731 | struct fuse_context *fuse_get_context() |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1732 | { |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1733 | static struct fuse_context context; |
| 1734 | if (fuse_getcontext) |
| 1735 | return fuse_getcontext(); |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1736 | else |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1737 | return &context; |
| 1738 | } |
| 1739 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1740 | void fuse_set_getcontext_func(struct fuse_context *(*func)(void)) |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1741 | { |
| 1742 | fuse_getcontext = func; |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1743 | } |
| 1744 | |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1745 | static int check_version(struct fuse *f) |
| 1746 | { |
| 1747 | int res; |
Miklos Szeredi | 162bcbb | 2004-11-29 23:43:44 +0000 | [diff] [blame] | 1748 | const char *version_file = FUSE_VERSION_FILE_NEW; |
Miklos Szeredi | f3845c4 | 2004-11-20 11:18:34 +0000 | [diff] [blame] | 1749 | FILE *vf = fopen(version_file, "r"); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1750 | if (vf == NULL) { |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1751 | version_file = FUSE_VERSION_FILE_OLD; |
Miklos Szeredi | f3845c4 | 2004-11-20 11:18:34 +0000 | [diff] [blame] | 1752 | vf = fopen(version_file, "r"); |
| 1753 | if (vf == NULL) { |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1754 | struct stat tmp; |
| 1755 | if (stat(FUSE_DEV_OLD, &tmp) != -1) { |
| 1756 | fprintf(stderr, "fuse: kernel interface too old, need >= %i.%i\n", |
| 1757 | FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION); |
| 1758 | return -1; |
| 1759 | } else { |
| 1760 | fprintf(stderr, "fuse: warning: version of kernel interface unknown\n"); |
| 1761 | return 0; |
| 1762 | } |
Miklos Szeredi | f3845c4 | 2004-11-20 11:18:34 +0000 | [diff] [blame] | 1763 | } |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1764 | } |
| 1765 | res = fscanf(vf, "%i.%i", &f->majorver, &f->minorver); |
| 1766 | fclose(vf); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1767 | if (res != 2) { |
Miklos Szeredi | f3845c4 | 2004-11-20 11:18:34 +0000 | [diff] [blame] | 1768 | fprintf(stderr, "fuse: error reading %s\n", version_file); |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1769 | return -1; |
| 1770 | } |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1771 | if (f->majorver != FUSE_KERNEL_VERSION) { |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1772 | fprintf(stderr, "fuse: bad kernel interface major version: needs %i\n", |
| 1773 | FUSE_KERNEL_VERSION); |
| 1774 | return -1; |
| 1775 | } |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1776 | if (f->minorver < FUSE_KERNEL_MINOR_VERSION_NEED) { |
Miklos Szeredi | 256739a | 2004-11-20 12:22:37 +0000 | [diff] [blame] | 1777 | fprintf(stderr, "fuse: kernel interface too old: need >= %i.%i\n", |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1778 | FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION); |
| 1779 | return -1; |
| 1780 | } |
| 1781 | |
| 1782 | return 0; |
| 1783 | } |
| 1784 | |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1785 | |
| 1786 | int fuse_is_lib_option(const char *opt) |
| 1787 | { |
| 1788 | if (strcmp(opt, "debug") == 0 || |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1789 | strcmp(opt, "hard_remove") == 0 || |
| 1790 | strcmp(opt, "use_ino") == 0) |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1791 | return 1; |
| 1792 | else |
| 1793 | return 0; |
| 1794 | } |
| 1795 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1796 | static int parse_lib_opts(struct fuse *f, const char *opts) |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1797 | { |
| 1798 | if (opts) { |
| 1799 | char *xopts = strdup(opts); |
| 1800 | char *s = xopts; |
| 1801 | char *opt; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1802 | |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1803 | if (xopts == NULL) { |
| 1804 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1805 | return -1; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1806 | } |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1807 | |
| 1808 | while((opt = strsep(&s, ","))) { |
| 1809 | if (strcmp(opt, "debug") == 0) |
| 1810 | f->flags |= FUSE_DEBUG; |
| 1811 | else if (strcmp(opt, "hard_remove") == 0) |
| 1812 | f->flags |= FUSE_HARD_REMOVE; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1813 | else if (strcmp(opt, "use_ino") == 0) |
| 1814 | f->flags |= FUSE_USE_INO; |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1815 | else |
| 1816 | fprintf(stderr, "fuse: warning: unknown option `%s'\n", opt); |
| 1817 | } |
| 1818 | free(xopts); |
| 1819 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1820 | return 0; |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1821 | } |
| 1822 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1823 | struct fuse *fuse_new_common(int fd, const char *opts, |
| 1824 | const struct fuse_operations *op, |
| 1825 | size_t op_size, int compat) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1826 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1827 | struct fuse *f; |
| 1828 | struct node *root; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1829 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1830 | if (sizeof(struct fuse_operations) < op_size) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1831 | 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^] | 1832 | op_size = sizeof(struct fuse_operations); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1833 | } |
| 1834 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1835 | f = (struct fuse *) calloc(1, sizeof(struct fuse)); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1836 | if (f == NULL) { |
| 1837 | fprintf(stderr, "fuse: failed to allocate fuse object\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1838 | goto out; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1839 | } |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1840 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1841 | if (check_version(f) == -1) |
| 1842 | goto out_free; |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1843 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1844 | if (parse_lib_opts(f, opts) == -1) |
| 1845 | goto out_free; |
| 1846 | |
Miklos Szeredi | 8cffdb9 | 2001-11-09 14:49:18 +0000 | [diff] [blame] | 1847 | f->fd = fd; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1848 | f->ctr = 0; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1849 | f->generation = 0; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1850 | /* FIXME: Dynamic hash table */ |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1851 | f->name_table_size = 14057; |
| 1852 | f->name_table = (struct node **) |
| 1853 | calloc(1, sizeof(struct node *) * f->name_table_size); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1854 | if (f->name_table == NULL) { |
| 1855 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1856 | goto out_free; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1857 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1858 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1859 | f->id_table_size = 14057; |
| 1860 | f->id_table = (struct node **) |
| 1861 | calloc(1, sizeof(struct node *) * f->id_table_size); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1862 | if (f->id_table == NULL) { |
| 1863 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1864 | goto out_free_name_table; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1865 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1866 | |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1867 | #ifndef USE_UCLIBC |
| 1868 | pthread_mutex_init(&f->lock, NULL); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1869 | pthread_mutex_init(&f->worker_lock, NULL); |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1870 | #else |
| 1871 | { |
| 1872 | pthread_mutexattr_t attr; |
| 1873 | pthread_mutexattr_init(&attr); |
| 1874 | pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ADAPTIVE_NP); |
| 1875 | pthread_mutex_init(&f->lock, &attr); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1876 | pthread_mutex_init(&f->worker_lock, &attr); |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1877 | pthread_mutexattr_destroy(&attr); |
| 1878 | } |
| 1879 | #endif |
Miklos Szeredi | 3323203 | 2001-11-19 17:55:51 +0000 | [diff] [blame] | 1880 | f->numworker = 0; |
| 1881 | f->numavail = 0; |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1882 | memcpy(&f->op, op, op_size); |
| 1883 | f->compat = compat; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1884 | f->exited = 0; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1885 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1886 | root = (struct node *) calloc(1, sizeof(struct node)); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1887 | if (root == NULL) { |
| 1888 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1889 | goto out_free_id_table; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1890 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1891 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1892 | root->name = strdup("/"); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1893 | if (root->name == NULL) { |
| 1894 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1895 | goto out_free_root; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1896 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1897 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1898 | root->parent = 0; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1899 | root->nodeid = FUSE_ROOT_ID; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1900 | root->generation = 0; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1901 | root->refctr = 1; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1902 | hash_id(f, root); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1903 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1904 | return f; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1905 | |
| 1906 | out_free_root: |
| 1907 | free(root); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1908 | out_free_id_table: |
| 1909 | free(f->id_table); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1910 | out_free_name_table: |
| 1911 | free(f->name_table); |
| 1912 | out_free: |
| 1913 | free(f); |
| 1914 | out: |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1915 | return NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1916 | } |
| 1917 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1918 | struct fuse *fuse_new(int fd, const char *opts, |
| 1919 | const struct fuse_operations *op, size_t op_size) |
| 1920 | { |
| 1921 | return fuse_new_common(fd, opts, op, op_size, 0); |
| 1922 | } |
| 1923 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1924 | struct fuse *fuse_new_compat2(int fd, const char *opts, |
| 1925 | const struct fuse_operations_compat2 *op) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1926 | { |
| 1927 | return fuse_new_common(fd, opts, (struct fuse_operations *) op, |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1928 | sizeof(struct fuse_operations_compat2), 21); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1929 | } |
| 1930 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1931 | struct fuse *fuse_new_compat1(int fd, int flags, |
| 1932 | const struct fuse_operations_compat1 *op) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1933 | { |
| 1934 | char *opts = NULL; |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1935 | if (flags & FUSE_DEBUG_COMPAT1) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1936 | opts = "debug"; |
| 1937 | return fuse_new_common(fd, opts, (struct fuse_operations *) op, |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1938 | sizeof(struct fuse_operations_compat1), 11); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1939 | } |
| 1940 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1941 | void fuse_destroy(struct fuse *f) |
| 1942 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1943 | size_t i; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1944 | for (i = 0; i < f->id_table_size; i++) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1945 | struct node *node; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1946 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1947 | for (node = f->id_table[i]; node != NULL; node = node->id_next) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1948 | if (node->is_hidden) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1949 | char *path = get_path(f, node->nodeid); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1950 | if (path) |
| 1951 | f->op.unlink(path); |
| 1952 | } |
| 1953 | } |
| 1954 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1955 | for (i = 0; i < f->id_table_size; i++) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1956 | struct node *node; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1957 | struct node *next; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1958 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1959 | for (node = f->id_table[i]; node != NULL; node = next) { |
| 1960 | next = node->id_next; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1961 | free_node(node); |
| 1962 | } |
| 1963 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1964 | free(f->id_table); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1965 | free(f->name_table); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1966 | pthread_mutex_destroy(&f->lock); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame^] | 1967 | pthread_mutex_destroy(&f->worker_lock); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1968 | free(f); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1969 | } |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1970 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1971 | __asm__(".symver fuse_exited,__fuse_exited@"); |
| 1972 | __asm__(".symver fuse_process_cmd,__fuse_process_cmd@"); |
| 1973 | __asm__(".symver fuse_read_cmd,__fuse_read_cmd@"); |
| 1974 | __asm__(".symver fuse_set_getcontext_func,__fuse_set_getcontext_func@"); |
| 1975 | __asm__(".symver fuse_new_compat2,fuse_new@"); |