Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | FUSE: Filesystem in Userspace |
Miklos Szeredi | 149f607 | 2005-01-10 12:29:28 +0000 | [diff] [blame] | 3 | Copyright (C) 2001-2005 Miklos Szeredi <miklos@szeredi.hu> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 4 | |
Miklos Szeredi | 8b39a9f | 2002-10-25 12:41:16 +0000 | [diff] [blame] | 5 | This program can be distributed under the terms of the GNU LGPL. |
| 6 | See the file COPYING.LIB |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
Miklos Szeredi | 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; |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 63 | unsigned char *contents; |
| 64 | unsigned len; |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 65 | int filled; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 66 | }; |
| 67 | |
| 68 | struct fuse_cmd { |
| 69 | char *buf; |
| 70 | size_t buflen; |
| 71 | }; |
| 72 | |
| 73 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 74 | static struct fuse_context *(*fuse_getcontext)(void) = NULL; |
| 75 | |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 76 | static const char *opname(enum fuse_opcode opcode) |
| 77 | { |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 78 | switch (opcode) { |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 79 | case FUSE_LOOKUP: return "LOOKUP"; |
| 80 | case FUSE_FORGET: return "FORGET"; |
| 81 | case FUSE_GETATTR: return "GETATTR"; |
| 82 | case FUSE_SETATTR: return "SETATTR"; |
| 83 | case FUSE_READLINK: return "READLINK"; |
| 84 | case FUSE_SYMLINK: return "SYMLINK"; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 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 | 3f0005f | 2005-01-04 19:24:31 +0000 | [diff] [blame] | 102 | case FUSE_INIT: return "INIT"; |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 103 | case FUSE_OPENDIR: return "OPENDIR"; |
| 104 | case FUSE_READDIR: return "READDIR"; |
| 105 | case FUSE_RELEASEDIR: return "RELEASEDIR"; |
Miklos Szeredi | 4283ee7 | 2005-03-21 12:09:04 +0000 | [diff] [blame^] | 106 | case FUSE_FSYNCDIR: return "FSYNCDIR"; |
Miklos Szeredi | 99f2074 | 2004-05-19 08:01:10 +0000 | [diff] [blame] | 107 | default: return "???"; |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 108 | } |
| 109 | } |
| 110 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 111 | static inline void fuse_dec_avail(struct fuse *f) |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 112 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 113 | pthread_mutex_lock(&f->worker_lock); |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 114 | f->numavail --; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 115 | pthread_mutex_unlock(&f->worker_lock); |
| 116 | } |
| 117 | |
| 118 | static inline void fuse_inc_avail(struct fuse *f) |
| 119 | { |
| 120 | pthread_mutex_lock(&f->worker_lock); |
| 121 | f->numavail ++; |
| 122 | pthread_mutex_unlock(&f->worker_lock); |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 123 | } |
| 124 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 125 | static struct node *get_node_nocheck(struct fuse *f, nodeid_t nodeid) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 126 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 127 | size_t hash = nodeid % f->id_table_size; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 128 | struct node *node; |
| 129 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 130 | for (node = f->id_table[hash]; node != NULL; node = node->id_next) |
| 131 | if (node->nodeid == nodeid) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 132 | return node; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 133 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 134 | return NULL; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 135 | } |
| 136 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 137 | static struct node *get_node(struct fuse *f, nodeid_t nodeid) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 138 | { |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 139 | struct node *node = get_node_nocheck(f, nodeid); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 140 | if (!node) { |
| 141 | fprintf(stderr, "fuse internal error: node %lu not found\n", |
| 142 | nodeid); |
| 143 | abort(); |
| 144 | } |
| 145 | return node; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 146 | } |
| 147 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 148 | static void free_node(struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 149 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 150 | free(node->name); |
| 151 | free(node); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 152 | } |
| 153 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 154 | static void unhash_id(struct fuse *f, struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 155 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 156 | size_t hash = node->nodeid % f->id_table_size; |
| 157 | struct node **nodep = &f->id_table[hash]; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 158 | |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 159 | for (; *nodep != NULL; nodep = &(*nodep)->id_next) |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 160 | if (*nodep == node) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 161 | *nodep = node->id_next; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 162 | return; |
| 163 | } |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 164 | } |
| 165 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 166 | static void hash_id(struct fuse *f, struct node *node) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 167 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 168 | size_t hash = node->nodeid % f->id_table_size; |
| 169 | node->id_next = f->id_table[hash]; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 170 | f->id_table[hash] = node; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 171 | } |
| 172 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 173 | 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] | 174 | { |
| 175 | unsigned int hash = *name; |
| 176 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 177 | if (hash) |
| 178 | for (name += 1; *name != '\0'; name++) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 179 | hash = (hash << 5) - hash + *name; |
| 180 | |
| 181 | return (hash + parent) % f->name_table_size; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 182 | } |
| 183 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 184 | static void unref_node(struct fuse *f, struct node *node); |
| 185 | |
| 186 | static void unhash_name(struct fuse *f, struct node *node) |
| 187 | { |
| 188 | if (node->name) { |
| 189 | size_t hash = name_hash(f, node->parent, node->name); |
| 190 | struct node **nodep = &f->name_table[hash]; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 191 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 192 | for (; *nodep != NULL; nodep = &(*nodep)->name_next) |
| 193 | if (*nodep == node) { |
| 194 | *nodep = node->name_next; |
| 195 | node->name_next = NULL; |
| 196 | unref_node(f, get_node(f, node->parent)); |
| 197 | free(node->name); |
| 198 | node->name = NULL; |
| 199 | node->parent = 0; |
| 200 | return; |
| 201 | } |
| 202 | fprintf(stderr, "fuse internal error: unable to unhash node: %lu\n", |
| 203 | node->nodeid); |
| 204 | abort(); |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | static int hash_name(struct fuse *f, struct node *node, nodeid_t parent, |
| 209 | const char *name) |
| 210 | { |
| 211 | size_t hash = name_hash(f, parent, name); |
| 212 | node->name = strdup(name); |
| 213 | if (node->name == NULL) |
| 214 | return -1; |
| 215 | |
| 216 | get_node(f, parent)->refctr ++; |
| 217 | node->parent = parent; |
| 218 | node->name_next = f->name_table[hash]; |
| 219 | f->name_table[hash] = node; |
| 220 | return 0; |
| 221 | } |
| 222 | |
| 223 | static void delete_node(struct fuse *f, struct node *node) |
| 224 | { |
| 225 | assert(!node->name); |
| 226 | unhash_id(f, node); |
| 227 | free_node(node); |
| 228 | } |
| 229 | |
| 230 | static void unref_node(struct fuse *f, struct node *node) |
| 231 | { |
| 232 | assert(node->refctr > 0); |
| 233 | node->refctr --; |
| 234 | if (!node->refctr) |
| 235 | delete_node(f, node); |
| 236 | } |
| 237 | |
| 238 | static nodeid_t next_id(struct fuse *f) |
| 239 | { |
| 240 | do { |
| 241 | f->ctr++; |
| 242 | if (!f->ctr) |
| 243 | f->generation ++; |
| 244 | } while (f->ctr == 0 || get_node_nocheck(f, f->ctr) != NULL); |
| 245 | return f->ctr; |
| 246 | } |
| 247 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 248 | static struct node *lookup_node(struct fuse *f, nodeid_t parent, |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 249 | const char *name) |
| 250 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 251 | size_t hash = name_hash(f, parent, name); |
| 252 | struct node *node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 253 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 254 | for (node = f->name_table[hash]; node != NULL; node = node->name_next) |
| 255 | if (node->parent == parent && strcmp(node->name, name) == 0) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 256 | return node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 257 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 258 | return NULL; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 259 | } |
| 260 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 261 | 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] | 262 | struct fuse_attr *attr, uint64_t version) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 263 | { |
| 264 | struct node *node; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 265 | int mode = attr->mode & S_IFMT; |
| 266 | int rdev = 0; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 267 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 268 | if (S_ISCHR(mode) || S_ISBLK(mode)) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 269 | rdev = attr->rdev; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 270 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 271 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 272 | node = lookup_node(f, parent, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 273 | if (node != NULL) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 274 | if (!(f->flags & FUSE_USE_INO)) |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 275 | attr->ino = node->nodeid; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 276 | } else { |
| 277 | node = (struct node *) calloc(1, sizeof(struct node)); |
| 278 | if (node == NULL) |
| 279 | goto out_err; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 280 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 281 | node->refctr = 1; |
| 282 | node->nodeid = next_id(f); |
| 283 | if (!(f->flags & FUSE_USE_INO)) |
| 284 | attr->ino = node->nodeid; |
| 285 | node->open_count = 0; |
| 286 | node->is_hidden = 0; |
| 287 | node->generation = f->generation; |
| 288 | if (hash_name(f, node, parent, name) == -1) { |
| 289 | free(node); |
| 290 | node = NULL; |
| 291 | goto out_err; |
| 292 | } |
| 293 | hash_id(f, node); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 294 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 295 | node->version = version; |
Miklos Szeredi | c230991 | 2004-09-21 13:40:38 +0000 | [diff] [blame] | 296 | out_err: |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 297 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 298 | return node; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 299 | } |
| 300 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 301 | static char *add_name(char *buf, char *s, const char *name) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 302 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 303 | size_t len = strlen(name); |
| 304 | s -= len; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 305 | if (s <= buf) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 306 | fprintf(stderr, "fuse: path too long: ...%s\n", s + len); |
| 307 | return NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 308 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 309 | strncpy(s, name, len); |
| 310 | s--; |
| 311 | *s = '/'; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 312 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 313 | return s; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 314 | } |
| 315 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 316 | 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] | 317 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 318 | char buf[FUSE_MAX_PATH]; |
| 319 | char *s = buf + FUSE_MAX_PATH - 1; |
| 320 | struct node *node; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 321 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 322 | *s = '\0'; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 323 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 324 | if (name != NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 325 | s = add_name(buf, s, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 326 | if (s == NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 327 | return NULL; |
| 328 | } |
| 329 | |
| 330 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 331 | for (node = get_node(f, nodeid); node && node->nodeid != FUSE_ROOT_ID; |
| 332 | node = get_node(f, node->parent)) { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 333 | if (node->name == NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 334 | s = NULL; |
| 335 | break; |
| 336 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 337 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 338 | s = add_name(buf, s, node->name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 339 | if (s == NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 340 | break; |
| 341 | } |
| 342 | pthread_mutex_unlock(&f->lock); |
| 343 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 344 | if (node == NULL || s == NULL) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 345 | return NULL; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 346 | else if (*s == '\0') |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 347 | return strdup("/"); |
| 348 | else |
| 349 | return strdup(s); |
| 350 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 351 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 352 | static char *get_path(struct fuse *f, nodeid_t nodeid) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 353 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 354 | return get_path_name(f, nodeid, NULL); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 355 | } |
| 356 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 357 | 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] | 358 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 359 | struct node *node; |
| 360 | |
| 361 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 362 | node = get_node(f, nodeid); |
| 363 | if (node->version == version && nodeid != FUSE_ROOT_ID) { |
| 364 | node->version = 0; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 365 | unhash_name(f, node); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 366 | unref_node(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 367 | } |
| 368 | pthread_mutex_unlock(&f->lock); |
| 369 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 370 | } |
| 371 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 372 | 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] | 373 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 374 | struct node *node; |
| 375 | |
| 376 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 377 | node = lookup_node(f, dir, name); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 378 | if (node != NULL) |
| 379 | unhash_name(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 380 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 381 | } |
| 382 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 383 | static int rename_node(struct fuse *f, nodeid_t olddir, const char *oldname, |
| 384 | nodeid_t newdir, const char *newname, int hide) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 385 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 386 | struct node *node; |
| 387 | struct node *newnode; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 388 | int err = 0; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 389 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 390 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 391 | node = lookup_node(f, olddir, oldname); |
| 392 | newnode = lookup_node(f, newdir, newname); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 393 | if (node == NULL) |
| 394 | goto out; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 395 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 396 | if (newnode != NULL) { |
| 397 | if (hide) { |
| 398 | fprintf(stderr, "fuse: hidden file got created during hiding\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 399 | err = -EBUSY; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 400 | goto out; |
| 401 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 402 | unhash_name(f, newnode); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 403 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 404 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 405 | unhash_name(f, node); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 406 | if (hash_name(f, node, newdir, newname) == -1) { |
| 407 | err = -ENOMEM; |
| 408 | goto out; |
| 409 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 410 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 411 | if (hide) |
| 412 | node->is_hidden = 1; |
| 413 | |
| 414 | out: |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 415 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 416 | return err; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 417 | } |
| 418 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 419 | static void convert_stat(struct stat *stbuf, struct fuse_attr *attr) |
| 420 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 421 | attr->ino = stbuf->st_ino; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 422 | attr->mode = stbuf->st_mode; |
| 423 | attr->nlink = stbuf->st_nlink; |
| 424 | attr->uid = stbuf->st_uid; |
| 425 | attr->gid = stbuf->st_gid; |
| 426 | attr->rdev = stbuf->st_rdev; |
| 427 | attr->size = stbuf->st_size; |
| 428 | attr->blocks = stbuf->st_blocks; |
| 429 | attr->atime = stbuf->st_atime; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 430 | attr->mtime = stbuf->st_mtime; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 431 | attr->ctime = stbuf->st_ctime; |
Miklos Szeredi | cb26451 | 2004-06-23 18:52:50 +0000 | [diff] [blame] | 432 | #ifdef HAVE_STRUCT_STAT_ST_ATIM |
| 433 | attr->atimensec = stbuf->st_atim.tv_nsec; |
| 434 | attr->mtimensec = stbuf->st_mtim.tv_nsec; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 435 | attr->ctimensec = stbuf->st_ctim.tv_nsec; |
Miklos Szeredi | cb26451 | 2004-06-23 18:52:50 +0000 | [diff] [blame] | 436 | #endif |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 437 | } |
| 438 | |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 439 | static int fill_dir(struct fuse_dirhandle *dh, const char *name, int type, |
| 440 | ino_t ino) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 441 | { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 442 | size_t namelen = strlen(name); |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 443 | size_t entsize = sizeof(struct fuse_dirhandle) + namelen + 8; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 444 | struct fuse_dirent *dirent; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 445 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 446 | if (namelen > FUSE_NAME_MAX) |
| 447 | namelen = FUSE_NAME_MAX; |
| 448 | |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 449 | dh->contents = realloc(dh->contents, dh->len + entsize); |
| 450 | if (dh->contents == NULL) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 451 | return -ENOMEM; |
| 452 | |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 453 | dirent = (struct fuse_dirent *) (dh->contents + dh->len); |
| 454 | memset(dirent, 0, entsize); |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 455 | if ((dh->fuse->flags & FUSE_USE_INO)) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 456 | dirent->ino = ino; |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 457 | else |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 458 | dirent->ino = (unsigned long) -1; |
| 459 | dirent->namelen = namelen; |
| 460 | strncpy(dirent->name, name, namelen); |
| 461 | dirent->type = type; |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 462 | dh->len += FUSE_DIRENT_SIZE(dirent); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 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 | e518374 | 2005-02-02 11:14:04 +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); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 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); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 568 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 569 | newpath = get_path_name(f, dir, newname); |
| 570 | if (!newpath) |
| 571 | break; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 572 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 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; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 706 | } |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 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; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 714 | |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 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 | e518374 | 2005-02-02 11:14:04 +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 | |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 807 | static int common_getdir(struct fuse *f, struct fuse_in_header *in, |
| 808 | struct fuse_dirhandle *dh) |
| 809 | { |
| 810 | int res; |
| 811 | char *path; |
| 812 | |
| 813 | res = -ENOENT; |
| 814 | path = get_path(f, in->nodeid); |
| 815 | if (path != NULL) { |
| 816 | res = -ENOSYS; |
| 817 | if (f->op.getdir) |
| 818 | res = f->op.getdir(path, dh, fill_dir); |
| 819 | free(path); |
| 820 | } |
| 821 | return res; |
| 822 | } |
| 823 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 824 | static void do_mknod(struct fuse *f, struct fuse_in_header *in, |
| 825 | struct fuse_mknod_in *inarg) |
| 826 | { |
| 827 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 828 | int res2; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 829 | char *path; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 830 | char *name = PARAM(inarg); |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 831 | struct fuse_entry_out outarg; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 832 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 833 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 834 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 835 | if (path != NULL) { |
| 836 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 837 | printf("MKNOD %s\n", path); |
| 838 | fflush(stdout); |
| 839 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 840 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 841 | if (f->op.mknod && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 842 | res = f->op.mknod(path, inarg->mode, inarg->rdev); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 843 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 844 | res = lookup_path(f, in->nodeid, in->unique, name, path, &outarg); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 845 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 846 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 847 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 848 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 849 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 850 | forget_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 851 | } |
| 852 | |
| 853 | static void do_mkdir(struct fuse *f, struct fuse_in_header *in, |
| 854 | struct fuse_mkdir_in *inarg) |
| 855 | { |
| 856 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 857 | int res2; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 858 | char *path; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 859 | char *name = PARAM(inarg); |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 860 | struct fuse_entry_out outarg; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 861 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 862 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 863 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 864 | if (path != NULL) { |
| 865 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 866 | printf("MKDIR %s\n", path); |
| 867 | fflush(stdout); |
| 868 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 869 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 870 | if (f->op.mkdir && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 871 | res = f->op.mkdir(path, inarg->mode); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 872 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 873 | res = lookup_path(f, in->nodeid, in->unique, name, path, &outarg); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 874 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 875 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 876 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 877 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 878 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 879 | forget_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 880 | } |
| 881 | |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 882 | 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] | 883 | { |
| 884 | int res; |
| 885 | char *path; |
| 886 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 887 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 888 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 889 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 890 | if (f->flags & FUSE_DEBUG) { |
| 891 | printf("UNLINK %s\n", path); |
| 892 | fflush(stdout); |
| 893 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 894 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 895 | if (f->op.unlink) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 896 | if (!(f->flags & FUSE_HARD_REMOVE) && is_open(f, in->nodeid, name)) |
| 897 | res = hide_node(f, path, in->nodeid, name); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 898 | else { |
| 899 | res = f->op.unlink(path); |
| 900 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 901 | remove_node(f, in->nodeid, name); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 902 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 903 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 904 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 905 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 906 | } |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 907 | send_reply(f, in, res, NULL, 0); |
| 908 | } |
| 909 | |
| 910 | static void do_rmdir(struct fuse *f, struct fuse_in_header *in, char *name) |
| 911 | { |
| 912 | int res; |
| 913 | char *path; |
| 914 | |
| 915 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 916 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 917 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 918 | if (f->flags & FUSE_DEBUG) { |
| 919 | printf("RMDIR %s\n", path); |
| 920 | fflush(stdout); |
| 921 | } |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 922 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 923 | if (f->op.rmdir) { |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 924 | res = f->op.rmdir(path); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 925 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 926 | remove_node(f, in->nodeid, name); |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 927 | } |
| 928 | free(path); |
| 929 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 930 | send_reply(f, in, res, NULL, 0); |
| 931 | } |
| 932 | |
| 933 | static void do_symlink(struct fuse *f, struct fuse_in_header *in, char *name, |
| 934 | char *link) |
| 935 | { |
| 936 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 937 | int res2; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 938 | char *path; |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 939 | struct fuse_entry_out outarg; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 940 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 941 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 942 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 943 | if (path != NULL) { |
| 944 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 945 | printf("SYMLINK %s\n", path); |
| 946 | fflush(stdout); |
| 947 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 948 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 949 | if (f->op.symlink && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 950 | res = f->op.symlink(link, path); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 951 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 952 | res = lookup_path(f, in->nodeid, in->unique, name, path, &outarg); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 953 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 954 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 955 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 956 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 957 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 958 | forget_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 959 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 960 | } |
| 961 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 962 | static void do_rename(struct fuse *f, struct fuse_in_header *in, |
| 963 | struct fuse_rename_in *inarg) |
| 964 | { |
| 965 | int res; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 966 | nodeid_t olddir = in->nodeid; |
| 967 | nodeid_t newdir = inarg->newdir; |
Miklos Szeredi | 6bf8b68 | 2002-10-28 08:49:39 +0000 | [diff] [blame] | 968 | char *oldname = PARAM(inarg); |
| 969 | char *newname = oldname + strlen(oldname) + 1; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 970 | char *oldpath; |
| 971 | char *newpath; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 972 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 973 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 974 | oldpath = get_path_name(f, olddir, oldname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 975 | if (oldpath != NULL) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 976 | newpath = get_path_name(f, newdir, newname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 977 | if (newpath != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 978 | if (f->flags & FUSE_DEBUG) { |
| 979 | printf("RENAME %s -> %s\n", oldpath, newpath); |
| 980 | fflush(stdout); |
| 981 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 982 | res = -ENOSYS; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 983 | if (f->op.rename) { |
| 984 | res = 0; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 985 | if (!(f->flags & FUSE_HARD_REMOVE) && |
Miklos Szeredi | 2529ca2 | 2004-07-13 15:36:52 +0000 | [diff] [blame] | 986 | is_open(f, newdir, newname)) |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 987 | res = hide_node(f, newpath, newdir, newname); |
| 988 | if (res == 0) { |
| 989 | res = f->op.rename(oldpath, newpath); |
| 990 | if (res == 0) |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 991 | res = rename_node(f, olddir, oldname, newdir, newname, 0); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 992 | } |
| 993 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 994 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 995 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 996 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 997 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 998 | send_reply(f, in, res, NULL, 0); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 999 | } |
| 1000 | |
| 1001 | static void do_link(struct fuse *f, struct fuse_in_header *in, |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1002 | struct fuse_link_in *arg) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 1003 | { |
| 1004 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 1005 | int res2; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1006 | char *oldpath; |
| 1007 | char *newpath; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1008 | char *name = PARAM(arg); |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 1009 | struct fuse_entry_out outarg; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 1010 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1011 | res = -ENOENT; |
Miklos Szeredi | ed6b5dd | 2005-01-26 17:07:59 +0000 | [diff] [blame] | 1012 | oldpath = get_path(f, arg->oldnodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1013 | if (oldpath != NULL) { |
Miklos Szeredi | ed6b5dd | 2005-01-26 17:07:59 +0000 | [diff] [blame] | 1014 | newpath = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1015 | if (newpath != NULL) { |
| 1016 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1017 | printf("LINK %s\n", newpath); |
| 1018 | fflush(stdout); |
| 1019 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1020 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1021 | if (f->op.link && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 1022 | res = f->op.link(oldpath, newpath); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1023 | if (res == 0) |
Miklos Szeredi | ed6b5dd | 2005-01-26 17:07:59 +0000 | [diff] [blame] | 1024 | res = lookup_path(f, in->nodeid, in->unique, name, |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1025 | newpath, &outarg); |
| 1026 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1027 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1028 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1029 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1030 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 1031 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 1032 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1033 | forget_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 1034 | } |
| 1035 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1036 | static void do_open(struct fuse *f, struct fuse_in_header *in, |
| 1037 | struct fuse_open_in *arg) |
| 1038 | { |
| 1039 | int res; |
| 1040 | char *path; |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1041 | struct fuse_open_out outarg; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1042 | struct fuse_file_info fi; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1043 | |
Miklos Szeredi | ed3c97c | 2005-02-15 17:04:50 +0000 | [diff] [blame] | 1044 | memset(&outarg, 0, sizeof(outarg)); |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1045 | memset(&fi, 0, sizeof(fi)); |
| 1046 | fi.flags = arg->flags; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1047 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1048 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1049 | if (path != NULL) { |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1050 | res = -ENOSYS; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1051 | if (f->op.open) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1052 | if (!f->compat) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1053 | res = f->op.open(path, &fi); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1054 | else |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1055 | res = ((struct fuse_operations_compat2 *) &f->op)->open(path, fi.flags); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1056 | } |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 1057 | } |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1058 | if (res == 0) { |
| 1059 | int res2; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1060 | outarg.fh = fi.fh; |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1061 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1062 | printf("OPEN[%lu] flags: 0x%x\n", fi.fh, arg->flags); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1063 | fflush(stdout); |
| 1064 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1065 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1066 | pthread_mutex_lock(&f->lock); |
| 1067 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1068 | if(res2 == -ENOENT) { |
| 1069 | /* The open syscall was interrupted, so it must be cancelled */ |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1070 | if(f->op.release) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1071 | if (!f->compat) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1072 | f->op.release(path, &fi); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1073 | else |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1074 | ((struct fuse_operations_compat2 *) &f->op)->release(path, fi.flags); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1075 | } |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1076 | } else { |
| 1077 | struct node *node = get_node(f, in->nodeid); |
| 1078 | node->open_count ++; |
| 1079 | } |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1080 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1081 | } else |
| 1082 | send_reply(f, in, res, NULL, 0); |
| 1083 | |
Miklos Szeredi | 9a31cca | 2004-06-26 21:11:25 +0000 | [diff] [blame] | 1084 | if (path) |
| 1085 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1086 | } |
| 1087 | |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1088 | static void do_flush(struct fuse *f, struct fuse_in_header *in, |
| 1089 | struct fuse_flush_in *arg) |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1090 | { |
| 1091 | char *path; |
| 1092 | int res; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1093 | struct fuse_file_info fi; |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1094 | |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1095 | memset(&fi, 0, sizeof(fi)); |
| 1096 | fi.fh = arg->fh; |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1097 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1098 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1099 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1100 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1101 | printf("FLUSH[%lu]\n", (unsigned long) arg->fh); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1102 | fflush(stdout); |
| 1103 | } |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1104 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1105 | if (f->op.flush) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1106 | res = f->op.flush(path, &fi); |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1107 | free(path); |
| 1108 | } |
| 1109 | send_reply(f, in, res, NULL, 0); |
| 1110 | } |
| 1111 | |
Miklos Szeredi | 9478e86 | 2002-12-11 09:50:26 +0000 | [diff] [blame] | 1112 | static void do_release(struct fuse *f, struct fuse_in_header *in, |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1113 | struct fuse_release_in *arg) |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1114 | { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1115 | struct node *node; |
| 1116 | char *path; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1117 | struct fuse_file_info fi; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1118 | int unlink_hidden; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1119 | |
| 1120 | memset(&fi, 0, sizeof(fi)); |
| 1121 | fi.flags = arg->flags; |
| 1122 | fi.fh = arg->fh; |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1123 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1124 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1125 | node = get_node(f, in->nodeid); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1126 | assert(node->open_count > 0); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1127 | --node->open_count; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1128 | unlink_hidden = (node->is_hidden && !node->open_count); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1129 | pthread_mutex_unlock(&f->lock); |
| 1130 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1131 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1132 | if (f->flags & FUSE_DEBUG) { |
| 1133 | printf("RELEASE[%lu] flags: 0x%x\n", fi.fh, fi.flags); |
| 1134 | fflush(stdout); |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1135 | } |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1136 | if (f->op.release) { |
| 1137 | if (!f->compat) |
| 1138 | f->op.release(path ? path : "-", &fi); |
| 1139 | else if (path) |
| 1140 | ((struct fuse_operations_compat2 *) &f->op)->release(path, fi.flags); |
| 1141 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1142 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1143 | if(unlink_hidden && path) |
| 1144 | f->op.unlink(path); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1145 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1146 | if (path) |
| 1147 | free(path); |
| 1148 | |
Miklos Szeredi | 556d03d | 2004-06-30 11:13:41 +0000 | [diff] [blame] | 1149 | send_reply(f, in, 0, NULL, 0); |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1150 | } |
| 1151 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1152 | static void do_read(struct fuse *f, struct fuse_in_header *in, |
| 1153 | struct fuse_read_in *arg) |
| 1154 | { |
| 1155 | int res; |
| 1156 | char *path; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1157 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + arg->size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1158 | if (outbuf == NULL) |
| 1159 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1160 | else { |
| 1161 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1162 | char *buf = outbuf + sizeof(struct fuse_out_header); |
| 1163 | size_t size; |
| 1164 | size_t outsize; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1165 | struct fuse_file_info fi; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1166 | |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1167 | memset(&fi, 0, sizeof(fi)); |
| 1168 | fi.fh = arg->fh; |
| 1169 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1170 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1171 | path = get_path(f, in->nodeid); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1172 | if (path != NULL) { |
| 1173 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1174 | printf("READ[%lu] %u bytes from %llu\n", |
| 1175 | (unsigned long) arg->fh, arg->size, arg->offset); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1176 | fflush(stdout); |
| 1177 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1178 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1179 | res = -ENOSYS; |
| 1180 | if (f->op.read) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1181 | res = f->op.read(path, buf, arg->size, arg->offset, &fi); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1182 | free(path); |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1183 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1184 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1185 | size = 0; |
| 1186 | if (res >= 0) { |
| 1187 | size = res; |
| 1188 | res = 0; |
| 1189 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1190 | printf(" READ[%lu] %u bytes\n", (unsigned long) arg->fh, |
| 1191 | size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1192 | fflush(stdout); |
| 1193 | } |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1194 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1195 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1196 | out->unique = in->unique; |
| 1197 | out->error = res; |
| 1198 | outsize = sizeof(struct fuse_out_header) + size; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1199 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1200 | send_reply_raw(f, outbuf, outsize); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1201 | free(outbuf); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1202 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1203 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 1204 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1205 | static void do_write(struct fuse *f, struct fuse_in_header *in, |
| 1206 | struct fuse_write_in *arg) |
| 1207 | { |
| 1208 | int res; |
| 1209 | char *path; |
Miklos Szeredi | ad051c3 | 2004-07-02 09:22:50 +0000 | [diff] [blame] | 1210 | struct fuse_write_out outarg; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1211 | struct fuse_file_info fi; |
| 1212 | |
| 1213 | memset(&fi, 0, sizeof(fi)); |
| 1214 | fi.fh = arg->fh; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1215 | fi.writepage = arg->write_flags & 1; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1216 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1217 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1218 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1219 | if (path != NULL) { |
| 1220 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 1eea032 | 2004-09-27 18:50:11 +0000 | [diff] [blame] | 1221 | printf("WRITE%s[%lu] %u bytes to %llu\n", |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1222 | (arg->write_flags & 1) ? "PAGE" : "", |
| 1223 | (unsigned long) arg->fh, arg->size, arg->offset); |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1224 | fflush(stdout); |
| 1225 | } |
| 1226 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1227 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1228 | if (f->op.write) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1229 | res = f->op.write(path, PARAM(arg), arg->size, arg->offset, &fi); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1230 | free(path); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1231 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1232 | |
| 1233 | if (res >= 0) { |
Miklos Szeredi | ad051c3 | 2004-07-02 09:22:50 +0000 | [diff] [blame] | 1234 | outarg.size = res; |
| 1235 | res = 0; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1236 | } |
| 1237 | |
Miklos Szeredi | ad051c3 | 2004-07-02 09:22:50 +0000 | [diff] [blame] | 1238 | send_reply(f, in, res, &outarg, sizeof(outarg)); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1239 | } |
| 1240 | |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1241 | static int default_statfs(struct statfs *buf) |
| 1242 | { |
| 1243 | buf->f_namelen = 255; |
| 1244 | buf->f_bsize = 512; |
| 1245 | return 0; |
| 1246 | } |
| 1247 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1248 | static void convert_statfs_compat(struct fuse_statfs_compat1 *compatbuf, |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1249 | struct statfs *statfs) |
| 1250 | { |
| 1251 | statfs->f_bsize = compatbuf->block_size; |
| 1252 | statfs->f_blocks = compatbuf->blocks; |
| 1253 | statfs->f_bfree = compatbuf->blocks_free; |
| 1254 | statfs->f_bavail = compatbuf->blocks_free; |
| 1255 | statfs->f_files = compatbuf->files; |
| 1256 | statfs->f_ffree = compatbuf->files_free; |
| 1257 | statfs->f_namelen = compatbuf->namelen; |
| 1258 | } |
| 1259 | |
Miklos Szeredi | 18e75e4 | 2004-02-19 14:23:27 +0000 | [diff] [blame] | 1260 | static void convert_statfs(struct statfs *statfs, struct fuse_kstatfs *kstatfs) |
| 1261 | { |
| 1262 | kstatfs->bsize = statfs->f_bsize; |
| 1263 | kstatfs->blocks = statfs->f_blocks; |
| 1264 | kstatfs->bfree = statfs->f_bfree; |
| 1265 | kstatfs->bavail = statfs->f_bavail; |
| 1266 | kstatfs->files = statfs->f_files; |
| 1267 | kstatfs->ffree = statfs->f_ffree; |
| 1268 | kstatfs->namelen = statfs->f_namelen; |
| 1269 | } |
| 1270 | |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1271 | static void do_statfs(struct fuse *f, struct fuse_in_header *in) |
| 1272 | { |
| 1273 | int res; |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1274 | struct fuse_statfs_out arg; |
Miklos Szeredi | 18e75e4 | 2004-02-19 14:23:27 +0000 | [diff] [blame] | 1275 | struct statfs buf; |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1276 | |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1277 | memset(&buf, 0, sizeof(struct statfs)); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1278 | if (f->op.statfs) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1279 | if (!f->compat || f->compat > 11) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1280 | res = f->op.statfs("/", &buf); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1281 | else { |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1282 | struct fuse_statfs_compat1 compatbuf; |
| 1283 | memset(&compatbuf, 0, sizeof(struct fuse_statfs_compat1)); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1284 | res = ((struct fuse_operations_compat1 *) &f->op)->statfs(&compatbuf); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1285 | if (res == 0) |
| 1286 | convert_statfs_compat(&compatbuf, &buf); |
| 1287 | } |
| 1288 | } |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1289 | else |
| 1290 | res = default_statfs(&buf); |
| 1291 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1292 | if (res == 0) |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1293 | convert_statfs(&buf, &arg.st); |
Miklos Szeredi | 4b2bef4 | 2002-01-09 12:23:27 +0000 | [diff] [blame] | 1294 | |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1295 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 1296 | } |
| 1297 | |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1298 | static void do_fsync(struct fuse *f, struct fuse_in_header *in, |
| 1299 | struct fuse_fsync_in *inarg) |
| 1300 | { |
| 1301 | int res; |
| 1302 | char *path; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1303 | struct fuse_file_info fi; |
| 1304 | |
| 1305 | memset(&fi, 0, sizeof(fi)); |
| 1306 | fi.fh = inarg->fh; |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1307 | |
| 1308 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1309 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1310 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1311 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1312 | printf("FSYNC[%lu]\n", (unsigned long) inarg->fh); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1313 | fflush(stdout); |
| 1314 | } |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1315 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1316 | if (f->op.fsync) |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1317 | res = f->op.fsync(path, inarg->fsync_flags & 1, &fi); |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1318 | free(path); |
| 1319 | } |
| 1320 | send_reply(f, in, res, NULL, 0); |
| 1321 | } |
| 1322 | |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1323 | static void do_setxattr(struct fuse *f, struct fuse_in_header *in, |
| 1324 | struct fuse_setxattr_in *arg) |
| 1325 | { |
| 1326 | int res; |
| 1327 | char *path; |
| 1328 | char *name = PARAM(arg); |
| 1329 | unsigned char *value = name + strlen(name) + 1; |
| 1330 | |
| 1331 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1332 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1333 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1334 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1335 | if (f->op.setxattr) |
| 1336 | res = f->op.setxattr(path, name, value, arg->size, arg->flags); |
| 1337 | free(path); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1338 | } |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1339 | send_reply(f, in, res, NULL, 0); |
| 1340 | } |
| 1341 | |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1342 | static int common_getxattr(struct fuse *f, struct fuse_in_header *in, |
| 1343 | const char *name, char *value, size_t size) |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1344 | { |
| 1345 | int res; |
| 1346 | char *path; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1347 | |
| 1348 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1349 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1350 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1351 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1352 | if (f->op.getxattr) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1353 | res = f->op.getxattr(path, name, value, size); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1354 | free(path); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1355 | } |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1356 | return res; |
| 1357 | } |
| 1358 | |
| 1359 | static void do_getxattr_read(struct fuse *f, struct fuse_in_header *in, |
| 1360 | const char *name, size_t size) |
| 1361 | { |
| 1362 | int res; |
| 1363 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1364 | if (outbuf == NULL) |
| 1365 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1366 | else { |
| 1367 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1368 | char *value = outbuf + sizeof(struct fuse_out_header); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1369 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1370 | res = common_getxattr(f, in, name, value, size); |
| 1371 | size = 0; |
| 1372 | if (res > 0) { |
| 1373 | size = res; |
| 1374 | res = 0; |
| 1375 | } |
| 1376 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1377 | out->unique = in->unique; |
| 1378 | out->error = res; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1379 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1380 | send_reply_raw(f, outbuf, sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1381 | free(outbuf); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1382 | } |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1383 | } |
| 1384 | |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1385 | static void do_getxattr_size(struct fuse *f, struct fuse_in_header *in, |
| 1386 | const char *name) |
| 1387 | { |
| 1388 | int res; |
| 1389 | struct fuse_getxattr_out arg; |
| 1390 | |
| 1391 | res = common_getxattr(f, in, name, NULL, 0); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1392 | if (res >= 0) { |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1393 | arg.size = res; |
| 1394 | res = 0; |
| 1395 | } |
| 1396 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 1397 | } |
| 1398 | |
| 1399 | static void do_getxattr(struct fuse *f, struct fuse_in_header *in, |
| 1400 | struct fuse_getxattr_in *arg) |
| 1401 | { |
| 1402 | char *name = PARAM(arg); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1403 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1404 | if (arg->size) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1405 | do_getxattr_read(f, in, name, arg->size); |
| 1406 | else |
| 1407 | do_getxattr_size(f, in, name); |
| 1408 | } |
| 1409 | |
| 1410 | static int common_listxattr(struct fuse *f, struct fuse_in_header *in, |
| 1411 | char *list, size_t size) |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1412 | { |
| 1413 | int res; |
| 1414 | char *path; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1415 | |
| 1416 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1417 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1418 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1419 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1420 | if (f->op.listxattr) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1421 | res = f->op.listxattr(path, list, size); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1422 | free(path); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1423 | } |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1424 | return res; |
| 1425 | } |
| 1426 | |
| 1427 | static void do_listxattr_read(struct fuse *f, struct fuse_in_header *in, |
| 1428 | size_t size) |
| 1429 | { |
| 1430 | int res; |
| 1431 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1432 | if (outbuf == NULL) |
| 1433 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1434 | else { |
| 1435 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1436 | char *list = outbuf + sizeof(struct fuse_out_header); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1437 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1438 | res = common_listxattr(f, in, list, size); |
| 1439 | size = 0; |
| 1440 | if (res > 0) { |
| 1441 | size = res; |
| 1442 | res = 0; |
| 1443 | } |
| 1444 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1445 | out->unique = in->unique; |
| 1446 | out->error = res; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1447 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1448 | send_reply_raw(f, outbuf, sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1449 | free(outbuf); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1450 | } |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1451 | } |
| 1452 | |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1453 | static void do_listxattr_size(struct fuse *f, struct fuse_in_header *in) |
| 1454 | { |
| 1455 | int res; |
| 1456 | struct fuse_getxattr_out arg; |
| 1457 | |
| 1458 | res = common_listxattr(f, in, NULL, 0); |
| 1459 | if (res >= 0) { |
| 1460 | arg.size = res; |
| 1461 | res = 0; |
| 1462 | } |
| 1463 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 1464 | } |
| 1465 | |
| 1466 | static void do_listxattr(struct fuse *f, struct fuse_in_header *in, |
| 1467 | struct fuse_getxattr_in *arg) |
| 1468 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1469 | if (arg->size) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1470 | do_listxattr_read(f, in, arg->size); |
| 1471 | else |
| 1472 | do_listxattr_size(f, in); |
| 1473 | } |
| 1474 | |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1475 | static void do_removexattr(struct fuse *f, struct fuse_in_header *in, |
| 1476 | char *name) |
| 1477 | { |
| 1478 | int res; |
| 1479 | char *path; |
| 1480 | |
| 1481 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1482 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1483 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1484 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1485 | if (f->op.removexattr) |
| 1486 | res = f->op.removexattr(path, name); |
| 1487 | free(path); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1488 | } |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1489 | send_reply(f, in, res, NULL, 0); |
| 1490 | } |
| 1491 | |
Miklos Szeredi | 3f0005f | 2005-01-04 19:24:31 +0000 | [diff] [blame] | 1492 | static void do_init(struct fuse *f, struct fuse_in_header *in, |
| 1493 | struct fuse_init_in_out *arg) |
| 1494 | { |
| 1495 | struct fuse_init_in_out outarg; |
| 1496 | if (f->flags & FUSE_DEBUG) { |
| 1497 | printf(" INIT: %u.%u\n", arg->major, arg->minor); |
| 1498 | fflush(stdout); |
| 1499 | } |
| 1500 | f->got_init = 1; |
Miklos Szeredi | 159bd7e | 2005-02-28 17:32:16 +0000 | [diff] [blame] | 1501 | if (f->op.init) |
| 1502 | f->user_data = f->op.init(); |
| 1503 | |
Miklos Szeredi | 3f0005f | 2005-01-04 19:24:31 +0000 | [diff] [blame] | 1504 | memset(&outarg, 0, sizeof(outarg)); |
| 1505 | outarg.major = FUSE_KERNEL_VERSION; |
| 1506 | outarg.minor = FUSE_KERNEL_MINOR_VERSION; |
| 1507 | send_reply(f, in, 0, &outarg, sizeof(outarg)); |
| 1508 | } |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1509 | |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1510 | static struct fuse_dirhandle *get_dirhandle(unsigned long fh) |
| 1511 | { |
| 1512 | return (struct fuse_dirhandle *) fh; |
| 1513 | } |
| 1514 | |
| 1515 | static void do_opendir(struct fuse *f, struct fuse_in_header *in, |
| 1516 | struct fuse_open_in *arg) |
| 1517 | { |
| 1518 | int res; |
| 1519 | struct fuse_open_out outarg; |
| 1520 | struct fuse_dirhandle *dh; |
| 1521 | |
Miklos Szeredi | f43f063 | 2005-02-28 11:46:56 +0000 | [diff] [blame] | 1522 | if (f->op.opendir) { |
| 1523 | char *path; |
| 1524 | res = -ENOENT; |
| 1525 | path = get_path(f, in->nodeid); |
| 1526 | if (path != NULL) { |
| 1527 | struct fuse_file_info fi; |
| 1528 | memset(&fi, 0, sizeof(fi)); |
| 1529 | fi.flags = arg->flags; |
| 1530 | res = f->op.opendir(path, &fi); |
| 1531 | free(path); |
| 1532 | } |
| 1533 | if (res != 0) { |
| 1534 | send_reply(f, in, res, NULL, 0); |
| 1535 | return; |
| 1536 | } |
| 1537 | } |
| 1538 | |
Miklos Szeredi | ed3c97c | 2005-02-15 17:04:50 +0000 | [diff] [blame] | 1539 | memset(&outarg, 0, sizeof(outarg)); |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1540 | res = -ENOMEM; |
| 1541 | dh = (struct fuse_dirhandle *) malloc(sizeof(struct fuse_dirhandle)); |
| 1542 | if (dh != NULL) { |
Miklos Szeredi | ed3c97c | 2005-02-15 17:04:50 +0000 | [diff] [blame] | 1543 | memset(dh, 0, sizeof(struct fuse_dirhandle)); |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1544 | dh->fuse = f; |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 1545 | dh->contents = NULL; |
| 1546 | dh->len = 0; |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1547 | dh->filled = 0; |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 1548 | outarg.fh = (unsigned long) dh; |
| 1549 | res = 0; |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1550 | } |
| 1551 | send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 1552 | } |
| 1553 | |
| 1554 | static void do_readdir(struct fuse *f, struct fuse_in_header *in, |
| 1555 | struct fuse_read_in *arg) |
| 1556 | { |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1557 | char *outbuf; |
| 1558 | struct fuse_dirhandle *dh = get_dirhandle(arg->fh); |
| 1559 | |
| 1560 | if (!dh->filled) { |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 1561 | int res = common_getdir(f, in, dh); |
Miklos Szeredi | 01fd89c | 2005-01-21 11:18:35 +0000 | [diff] [blame] | 1562 | if (res) { |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1563 | send_reply(f, in, res, NULL, 0); |
Miklos Szeredi | 01fd89c | 2005-01-21 11:18:35 +0000 | [diff] [blame] | 1564 | return; |
| 1565 | } |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1566 | dh->filled = 1; |
| 1567 | } |
| 1568 | outbuf = (char *) malloc(sizeof(struct fuse_out_header) + arg->size); |
| 1569 | if (outbuf == NULL) |
| 1570 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1571 | else { |
| 1572 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1573 | char *buf = outbuf + sizeof(struct fuse_out_header); |
| 1574 | size_t size = 0; |
| 1575 | size_t outsize; |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 1576 | if (arg->offset < dh->len) { |
| 1577 | size = arg->size; |
| 1578 | if (arg->offset + size > dh->len) |
| 1579 | size = dh->len - arg->offset; |
| 1580 | |
| 1581 | memcpy(buf, dh->contents + arg->offset, size); |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1582 | } |
| 1583 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1584 | out->unique = in->unique; |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 1585 | out->error = 0; |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1586 | outsize = sizeof(struct fuse_out_header) + size; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1587 | |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1588 | send_reply_raw(f, outbuf, outsize); |
| 1589 | free(outbuf); |
| 1590 | } |
| 1591 | } |
| 1592 | |
| 1593 | static void do_releasedir(struct fuse *f, struct fuse_in_header *in, |
| 1594 | struct fuse_release_in *arg) |
| 1595 | { |
| 1596 | struct fuse_dirhandle *dh = get_dirhandle(arg->fh); |
Miklos Szeredi | b92d978 | 2005-02-07 16:10:49 +0000 | [diff] [blame] | 1597 | free(dh->contents); |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1598 | free(dh); |
| 1599 | send_reply(f, in, 0, NULL, 0); |
| 1600 | } |
| 1601 | |
Miklos Szeredi | 4283ee7 | 2005-03-21 12:09:04 +0000 | [diff] [blame^] | 1602 | static void do_fsyncdir(struct fuse *f, struct fuse_in_header *in, |
| 1603 | struct fuse_fsync_in *inarg) |
| 1604 | { |
| 1605 | int res; |
| 1606 | char *path; |
| 1607 | struct fuse_file_info fi; |
| 1608 | |
| 1609 | memset(&fi, 0, sizeof(fi)); |
| 1610 | res = -ENOENT; |
| 1611 | path = get_path(f, in->nodeid); |
| 1612 | if (path != NULL) { |
| 1613 | res = -ENOSYS; |
| 1614 | if (f->op.fsyncdir) |
| 1615 | res = f->op.fsyncdir(path, inarg->fsync_flags & 1, &fi); |
| 1616 | free(path); |
| 1617 | } |
| 1618 | send_reply(f, in, res, NULL, 0); |
| 1619 | } |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1620 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1621 | static void free_cmd(struct fuse_cmd *cmd) |
| 1622 | { |
| 1623 | free(cmd->buf); |
| 1624 | free(cmd); |
| 1625 | } |
| 1626 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1627 | void fuse_process_cmd(struct fuse *f, struct fuse_cmd *cmd) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1628 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1629 | struct fuse_in_header *in = (struct fuse_in_header *) cmd->buf; |
| 1630 | void *inarg = cmd->buf + sizeof(struct fuse_in_header); |
| 1631 | size_t argsize; |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1632 | struct fuse_context *ctx = fuse_get_context(); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1633 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1634 | fuse_dec_avail(f); |
Miklos Szeredi | 3323203 | 2001-11-19 17:55:51 +0000 | [diff] [blame] | 1635 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1636 | if ((f->flags & FUSE_DEBUG)) { |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1637 | printf("unique: %llu, opcode: %s (%i), nodeid: %lu, insize: %i\n", |
| 1638 | in->unique, opname(in->opcode), in->opcode, |
| 1639 | (unsigned long) in->nodeid, cmd->buflen); |
Miklos Szeredi | c0938ea | 2001-11-07 12:35:06 +0000 | [diff] [blame] | 1640 | fflush(stdout); |
| 1641 | } |
Miklos Szeredi | fe25def | 2001-12-20 15:38:05 +0000 | [diff] [blame] | 1642 | |
Miklos Szeredi | 3f0005f | 2005-01-04 19:24:31 +0000 | [diff] [blame] | 1643 | if (!f->got_init && in->opcode != FUSE_INIT) { |
| 1644 | /* Old kernel version probably */ |
| 1645 | send_reply(f, in, -EPROTO, NULL, 0); |
| 1646 | goto out; |
| 1647 | } |
| 1648 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1649 | ctx->fuse = f; |
Miklos Szeredi | fe25def | 2001-12-20 15:38:05 +0000 | [diff] [blame] | 1650 | ctx->uid = in->uid; |
| 1651 | ctx->gid = in->gid; |
Miklos Szeredi | 1f18db5 | 2004-09-27 06:54:49 +0000 | [diff] [blame] | 1652 | ctx->pid = in->pid; |
Miklos Szeredi | 159bd7e | 2005-02-28 17:32:16 +0000 | [diff] [blame] | 1653 | ctx->private_data = f->user_data; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1654 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1655 | argsize = cmd->buflen - sizeof(struct fuse_in_header); |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1656 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1657 | switch (in->opcode) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1658 | case FUSE_LOOKUP: |
| 1659 | do_lookup(f, in, (char *) inarg); |
| 1660 | break; |
| 1661 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1662 | case FUSE_GETATTR: |
| 1663 | do_getattr(f, in); |
| 1664 | break; |
| 1665 | |
| 1666 | case FUSE_SETATTR: |
| 1667 | do_setattr(f, in, (struct fuse_setattr_in *) inarg); |
| 1668 | break; |
| 1669 | |
| 1670 | case FUSE_READLINK: |
| 1671 | do_readlink(f, in); |
| 1672 | break; |
| 1673 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1674 | case FUSE_MKNOD: |
| 1675 | do_mknod(f, in, (struct fuse_mknod_in *) inarg); |
| 1676 | break; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1677 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1678 | case FUSE_MKDIR: |
| 1679 | do_mkdir(f, in, (struct fuse_mkdir_in *) inarg); |
| 1680 | break; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1681 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1682 | case FUSE_UNLINK: |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 1683 | do_unlink(f, in, (char *) inarg); |
| 1684 | break; |
| 1685 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1686 | case FUSE_RMDIR: |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 1687 | do_rmdir(f, in, (char *) inarg); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1688 | break; |
| 1689 | |
| 1690 | case FUSE_SYMLINK: |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1691 | do_symlink(f, in, (char *) inarg, |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1692 | ((char *) inarg) + strlen((char *) inarg) + 1); |
| 1693 | break; |
| 1694 | |
| 1695 | case FUSE_RENAME: |
| 1696 | do_rename(f, in, (struct fuse_rename_in *) inarg); |
| 1697 | break; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1698 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1699 | case FUSE_LINK: |
| 1700 | do_link(f, in, (struct fuse_link_in *) inarg); |
| 1701 | break; |
| 1702 | |
| 1703 | case FUSE_OPEN: |
| 1704 | do_open(f, in, (struct fuse_open_in *) inarg); |
| 1705 | break; |
| 1706 | |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1707 | case FUSE_FLUSH: |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1708 | do_flush(f, in, (struct fuse_flush_in *) inarg); |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1709 | break; |
| 1710 | |
Miklos Szeredi | 9478e86 | 2002-12-11 09:50:26 +0000 | [diff] [blame] | 1711 | case FUSE_RELEASE: |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1712 | do_release(f, in, (struct fuse_release_in *) inarg); |
Miklos Szeredi | 9478e86 | 2002-12-11 09:50:26 +0000 | [diff] [blame] | 1713 | break; |
| 1714 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1715 | case FUSE_READ: |
| 1716 | do_read(f, in, (struct fuse_read_in *) inarg); |
| 1717 | break; |
| 1718 | |
| 1719 | case FUSE_WRITE: |
| 1720 | do_write(f, in, (struct fuse_write_in *) inarg); |
| 1721 | break; |
| 1722 | |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1723 | case FUSE_STATFS: |
| 1724 | do_statfs(f, in); |
| 1725 | break; |
| 1726 | |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1727 | case FUSE_FSYNC: |
| 1728 | do_fsync(f, in, (struct fuse_fsync_in *) inarg); |
| 1729 | break; |
| 1730 | |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1731 | case FUSE_SETXATTR: |
| 1732 | do_setxattr(f, in, (struct fuse_setxattr_in *) inarg); |
| 1733 | break; |
| 1734 | |
| 1735 | case FUSE_GETXATTR: |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1736 | do_getxattr(f, in, (struct fuse_getxattr_in *) inarg); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1737 | break; |
| 1738 | |
| 1739 | case FUSE_LISTXATTR: |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1740 | do_listxattr(f, in, (struct fuse_getxattr_in *) inarg); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1741 | break; |
| 1742 | |
| 1743 | case FUSE_REMOVEXATTR: |
| 1744 | do_removexattr(f, in, (char *) inarg); |
| 1745 | break; |
| 1746 | |
Miklos Szeredi | 3f0005f | 2005-01-04 19:24:31 +0000 | [diff] [blame] | 1747 | case FUSE_INIT: |
| 1748 | do_init(f, in, (struct fuse_init_in_out *) inarg); |
| 1749 | break; |
| 1750 | |
Miklos Szeredi | 3ead28e | 2005-01-18 21:23:41 +0000 | [diff] [blame] | 1751 | case FUSE_OPENDIR: |
| 1752 | do_opendir(f, in, (struct fuse_open_in *) inarg); |
| 1753 | break; |
| 1754 | |
| 1755 | case FUSE_READDIR: |
| 1756 | do_readdir(f, in, (struct fuse_read_in *) inarg); |
| 1757 | break; |
| 1758 | |
| 1759 | case FUSE_RELEASEDIR: |
| 1760 | do_releasedir(f, in, (struct fuse_release_in *) inarg); |
| 1761 | break; |
| 1762 | |
Miklos Szeredi | 4283ee7 | 2005-03-21 12:09:04 +0000 | [diff] [blame^] | 1763 | case FUSE_FSYNCDIR: |
| 1764 | do_fsyncdir(f, in, (struct fuse_fsync_in *) inarg); |
| 1765 | break; |
| 1766 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1767 | default: |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1768 | send_reply(f, in, -ENOSYS, NULL, 0); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1769 | } |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1770 | |
Miklos Szeredi | 3f0005f | 2005-01-04 19:24:31 +0000 | [diff] [blame] | 1771 | out: |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1772 | free_cmd(cmd); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1773 | } |
| 1774 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1775 | int fuse_exited(struct fuse* f) |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1776 | { |
| 1777 | return f->exited; |
| 1778 | } |
| 1779 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1780 | struct fuse_cmd *fuse_read_cmd(struct fuse *f) |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1781 | { |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1782 | ssize_t res; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1783 | struct fuse_cmd *cmd; |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1784 | struct fuse_in_header *in; |
| 1785 | void *inarg; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1786 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1787 | cmd = (struct fuse_cmd *) malloc(sizeof(struct fuse_cmd)); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1788 | if (cmd == NULL) { |
| 1789 | fprintf(stderr, "fuse: failed to allocate cmd in read\n"); |
| 1790 | return NULL; |
| 1791 | } |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1792 | cmd->buf = (char *) malloc(FUSE_MAX_IN); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1793 | if (cmd->buf == NULL) { |
| 1794 | fprintf(stderr, "fuse: failed to allocate read buffer\n"); |
| 1795 | free(cmd); |
| 1796 | return NULL; |
| 1797 | } |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1798 | in = (struct fuse_in_header *) cmd->buf; |
| 1799 | inarg = cmd->buf + sizeof(struct fuse_in_header); |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1800 | |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1801 | res = read(f->fd, cmd->buf, FUSE_MAX_IN); |
| 1802 | if (res == -1) { |
| 1803 | free_cmd(cmd); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1804 | if (fuse_exited(f) || errno == EINTR || errno == ENOENT) |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1805 | return NULL; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1806 | |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1807 | /* ENODEV means we got unmounted, so we silenty return failure */ |
| 1808 | if (errno != ENODEV) { |
| 1809 | /* BAD... This will happen again */ |
| 1810 | perror("fuse: reading device"); |
| 1811 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1812 | |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1813 | fuse_exit(f); |
| 1814 | return NULL; |
| 1815 | } |
| 1816 | if ((size_t) res < sizeof(struct fuse_in_header)) { |
| 1817 | free_cmd(cmd); |
| 1818 | /* Cannot happen */ |
| 1819 | fprintf(stderr, "short read on fuse device\n"); |
| 1820 | fuse_exit(f); |
| 1821 | return NULL; |
| 1822 | } |
| 1823 | cmd->buflen = res; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1824 | |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1825 | /* Forget is special, it can be done without messing with threads. */ |
| 1826 | if (in->opcode == FUSE_FORGET) { |
| 1827 | do_forget(f, in, (struct fuse_forget_in *) inarg); |
| 1828 | free_cmd(cmd); |
| 1829 | return NULL; |
| 1830 | } |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1831 | |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1832 | return cmd; |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1833 | } |
| 1834 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1835 | int fuse_loop(struct fuse *f) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1836 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1837 | if (f == NULL) |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1838 | return -1; |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1839 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1840 | while (1) { |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1841 | struct fuse_cmd *cmd; |
| 1842 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1843 | if (fuse_exited(f)) |
Miklos Szeredi | 874e3c1 | 2004-11-01 23:15:20 +0000 | [diff] [blame] | 1844 | break; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1845 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1846 | cmd = fuse_read_cmd(f); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1847 | if (cmd == NULL) |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1848 | continue; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1849 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1850 | fuse_process_cmd(f, cmd); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1851 | } |
Miklos Szeredi | 874e3c1 | 2004-11-01 23:15:20 +0000 | [diff] [blame] | 1852 | f->exited = 0; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1853 | return 0; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1854 | } |
| 1855 | |
Miklos Szeredi | 891b874 | 2004-07-29 09:27:49 +0000 | [diff] [blame] | 1856 | int fuse_invalidate(struct fuse *f, const char *path) |
| 1857 | { |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1858 | (void) f; |
| 1859 | (void) path; |
| 1860 | return -EINVAL; |
Miklos Szeredi | 891b874 | 2004-07-29 09:27:49 +0000 | [diff] [blame] | 1861 | } |
| 1862 | |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1863 | void fuse_exit(struct fuse *f) |
| 1864 | { |
| 1865 | f->exited = 1; |
| 1866 | } |
| 1867 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1868 | struct fuse_context *fuse_get_context() |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1869 | { |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1870 | static struct fuse_context context; |
| 1871 | if (fuse_getcontext) |
| 1872 | return fuse_getcontext(); |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1873 | else |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1874 | return &context; |
| 1875 | } |
| 1876 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1877 | void fuse_set_getcontext_func(struct fuse_context *(*func)(void)) |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1878 | { |
| 1879 | fuse_getcontext = func; |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1880 | } |
| 1881 | |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1882 | int fuse_is_lib_option(const char *opt) |
| 1883 | { |
| 1884 | if (strcmp(opt, "debug") == 0 || |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1885 | strcmp(opt, "hard_remove") == 0 || |
| 1886 | strcmp(opt, "use_ino") == 0) |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1887 | return 1; |
| 1888 | else |
| 1889 | return 0; |
| 1890 | } |
| 1891 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1892 | static int parse_lib_opts(struct fuse *f, const char *opts) |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1893 | { |
| 1894 | if (opts) { |
| 1895 | char *xopts = strdup(opts); |
| 1896 | char *s = xopts; |
| 1897 | char *opt; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1898 | |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1899 | if (xopts == NULL) { |
| 1900 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1901 | return -1; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1902 | } |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1903 | |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1904 | while((opt = strsep(&s, ","))) { |
| 1905 | if (strcmp(opt, "debug") == 0) |
| 1906 | f->flags |= FUSE_DEBUG; |
| 1907 | else if (strcmp(opt, "hard_remove") == 0) |
| 1908 | f->flags |= FUSE_HARD_REMOVE; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1909 | else if (strcmp(opt, "use_ino") == 0) |
| 1910 | f->flags |= FUSE_USE_INO; |
Miklos Szeredi | e518374 | 2005-02-02 11:14:04 +0000 | [diff] [blame] | 1911 | else |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1912 | fprintf(stderr, "fuse: warning: unknown option `%s'\n", opt); |
| 1913 | } |
| 1914 | free(xopts); |
| 1915 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1916 | return 0; |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1917 | } |
| 1918 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1919 | struct fuse *fuse_new_common(int fd, const char *opts, |
| 1920 | const struct fuse_operations *op, |
| 1921 | size_t op_size, int compat) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1922 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1923 | struct fuse *f; |
| 1924 | struct node *root; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1925 | |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1926 | if (sizeof(struct fuse_operations) < op_size) { |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1927 | 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] | 1928 | op_size = sizeof(struct fuse_operations); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1929 | } |
| 1930 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1931 | f = (struct fuse *) calloc(1, sizeof(struct fuse)); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1932 | if (f == NULL) { |
| 1933 | fprintf(stderr, "fuse: failed to allocate fuse object\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1934 | goto out; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1935 | } |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1936 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1937 | if (parse_lib_opts(f, opts) == -1) |
| 1938 | goto out_free; |
| 1939 | |
Miklos Szeredi | 8cffdb9 | 2001-11-09 14:49:18 +0000 | [diff] [blame] | 1940 | f->fd = fd; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1941 | f->ctr = 0; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1942 | f->generation = 0; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1943 | /* FIXME: Dynamic hash table */ |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1944 | f->name_table_size = 14057; |
| 1945 | f->name_table = (struct node **) |
| 1946 | calloc(1, sizeof(struct node *) * f->name_table_size); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1947 | if (f->name_table == NULL) { |
| 1948 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1949 | goto out_free; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1950 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1951 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1952 | f->id_table_size = 14057; |
| 1953 | f->id_table = (struct node **) |
| 1954 | calloc(1, sizeof(struct node *) * f->id_table_size); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1955 | if (f->id_table == NULL) { |
| 1956 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1957 | goto out_free_name_table; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1958 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1959 | |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1960 | #ifndef USE_UCLIBC |
| 1961 | pthread_mutex_init(&f->lock, NULL); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1962 | pthread_mutex_init(&f->worker_lock, NULL); |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1963 | #else |
| 1964 | { |
| 1965 | pthread_mutexattr_t attr; |
| 1966 | pthread_mutexattr_init(&attr); |
| 1967 | pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ADAPTIVE_NP); |
| 1968 | pthread_mutex_init(&f->lock, &attr); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1969 | pthread_mutex_init(&f->worker_lock, &attr); |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1970 | pthread_mutexattr_destroy(&attr); |
| 1971 | } |
| 1972 | #endif |
Miklos Szeredi | 3323203 | 2001-11-19 17:55:51 +0000 | [diff] [blame] | 1973 | f->numworker = 0; |
| 1974 | f->numavail = 0; |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1975 | memcpy(&f->op, op, op_size); |
| 1976 | f->compat = compat; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1977 | f->exited = 0; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1978 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1979 | root = (struct node *) calloc(1, sizeof(struct node)); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1980 | if (root == NULL) { |
| 1981 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1982 | goto out_free_id_table; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1983 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1984 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1985 | root->name = strdup("/"); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1986 | if (root->name == NULL) { |
| 1987 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1988 | goto out_free_root; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame] | 1989 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1990 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1991 | root->parent = 0; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1992 | root->nodeid = FUSE_ROOT_ID; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1993 | root->generation = 0; |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 1994 | root->refctr = 1; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1995 | hash_id(f, root); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1996 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1997 | return f; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1998 | |
| 1999 | out_free_root: |
| 2000 | free(root); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 2001 | out_free_id_table: |
| 2002 | free(f->id_table); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 2003 | out_free_name_table: |
| 2004 | free(f->name_table); |
| 2005 | out_free: |
| 2006 | free(f); |
| 2007 | out: |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 2008 | return NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 2009 | } |
| 2010 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 2011 | struct fuse *fuse_new(int fd, const char *opts, |
| 2012 | const struct fuse_operations *op, size_t op_size) |
| 2013 | { |
| 2014 | return fuse_new_common(fd, opts, op, op_size, 0); |
| 2015 | } |
| 2016 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 2017 | struct fuse *fuse_new_compat2(int fd, const char *opts, |
| 2018 | const struct fuse_operations_compat2 *op) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 2019 | { |
| 2020 | return fuse_new_common(fd, opts, (struct fuse_operations *) op, |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 2021 | sizeof(struct fuse_operations_compat2), 21); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 2022 | } |
| 2023 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 2024 | struct fuse *fuse_new_compat1(int fd, int flags, |
| 2025 | const struct fuse_operations_compat1 *op) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 2026 | { |
| 2027 | char *opts = NULL; |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 2028 | if (flags & FUSE_DEBUG_COMPAT1) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 2029 | opts = "debug"; |
| 2030 | return fuse_new_common(fd, opts, (struct fuse_operations *) op, |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 2031 | sizeof(struct fuse_operations_compat1), 11); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 2032 | } |
| 2033 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 2034 | void fuse_destroy(struct fuse *f) |
| 2035 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 2036 | size_t i; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 2037 | for (i = 0; i < f->id_table_size; i++) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 2038 | struct node *node; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 2039 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 2040 | for (node = f->id_table[i]; node != NULL; node = node->id_next) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 2041 | if (node->is_hidden) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 2042 | char *path = get_path(f, node->nodeid); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 2043 | if (path) |
| 2044 | f->op.unlink(path); |
| 2045 | } |
| 2046 | } |
| 2047 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 2048 | for (i = 0; i < f->id_table_size; i++) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 2049 | struct node *node; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 2050 | struct node *next; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 2051 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 2052 | for (node = f->id_table[i]; node != NULL; node = next) { |
| 2053 | next = node->id_next; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 2054 | free_node(node); |
| 2055 | } |
| 2056 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 2057 | free(f->id_table); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 2058 | free(f->name_table); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 2059 | pthread_mutex_destroy(&f->lock); |
Miklos Szeredi | 0f62d72 | 2005-01-04 12:45:54 +0000 | [diff] [blame] | 2060 | pthread_mutex_destroy(&f->worker_lock); |
Miklos Szeredi | 159bd7e | 2005-02-28 17:32:16 +0000 | [diff] [blame] | 2061 | if (f->op.destroy) |
| 2062 | f->op.destroy(f->user_data); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 2063 | free(f); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 2064 | } |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 2065 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 2066 | __asm__(".symver fuse_exited,__fuse_exited@"); |
| 2067 | __asm__(".symver fuse_process_cmd,__fuse_process_cmd@"); |
| 2068 | __asm__(".symver fuse_read_cmd,__fuse_read_cmd@"); |
| 2069 | __asm__(".symver fuse_set_getcontext_func,__fuse_set_getcontext_func@"); |
| 2070 | __asm__(".symver fuse_new_compat2,fuse_new@"); |