Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | FUSE: Filesystem in Userspace |
| 3 | Copyright (C) 2001 Miklos Szeredi (mszeredi@inf.bme.hu) |
| 4 | |
| 5 | This program can be distributed under the terms of the GNU GPL. |
| 6 | See the file COPYING. |
| 7 | */ |
| 8 | |
| 9 | #include "fuse_i.h" |
| 10 | #include <linux/fuse.h> |
| 11 | |
| 12 | #include <string.h> |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 13 | #include <stdlib.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 14 | #include <unistd.h> |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 15 | #include <limits.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 16 | #include <errno.h> |
| 17 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 18 | #define FUSE_MAX_PATH 4096 |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 19 | |
Miklos Szeredi | cc8c975 | 2001-11-21 10:03:39 +0000 | [diff] [blame^] | 20 | #define FUSE_KERNEL_VERSION_ENV "_FUSE_KERNEL_VERSION" |
| 21 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 22 | static struct node *__get_node(struct fuse *f, fino_t ino) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 23 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 24 | size_t hash = ino % f->ino_table_size; |
| 25 | struct node *node; |
| 26 | |
| 27 | for(node = f->ino_table[hash]; node != NULL; node = node->ino_next) |
| 28 | if(node->ino == ino) |
| 29 | return node; |
| 30 | |
| 31 | return NULL; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 32 | } |
| 33 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 34 | static struct node *get_node(struct fuse *f, fino_t ino) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 35 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 36 | struct node *node = __get_node(f, ino); |
| 37 | if(node != NULL) |
| 38 | return node; |
| 39 | |
| 40 | fprintf(stderr, "fuse internal error: inode %lu not found\n", ino); |
| 41 | abort(); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 42 | } |
| 43 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 44 | static void hash_ino(struct fuse *f, struct node *node, fino_t ino) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 45 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 46 | size_t hash = ino % f->ino_table_size; |
| 47 | node->ino = ino; |
| 48 | |
| 49 | node->ino_next = f->ino_table[hash]; |
| 50 | f->ino_table[hash] = node; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 51 | } |
| 52 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 53 | static void unhash_ino(struct fuse *f, struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 54 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 55 | size_t hash = node->ino % f->ino_table_size; |
| 56 | struct node **nodep = &f->ino_table[hash]; |
| 57 | |
| 58 | for(; *nodep != NULL; nodep = &(*nodep)->ino_next) |
| 59 | if(*nodep == node) { |
| 60 | *nodep = node->ino_next; |
| 61 | return; |
| 62 | } |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 63 | } |
| 64 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 65 | static fino_t get_ino(struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 66 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 67 | return node->ino; |
| 68 | } |
| 69 | |
| 70 | static fino_t next_ino(struct fuse *f) |
| 71 | { |
| 72 | while(f->ctr == 0 || __get_node(f, f->ctr) != NULL) |
| 73 | f->ctr++; |
| 74 | |
| 75 | return f->ctr; |
| 76 | } |
| 77 | |
| 78 | static void free_node(struct node *node) |
| 79 | { |
| 80 | free(node->name); |
| 81 | free(node); |
| 82 | } |
| 83 | |
| 84 | static unsigned int name_hash(struct fuse *f, fino_t parent, const char *name) |
| 85 | { |
| 86 | unsigned int hash = *name; |
| 87 | |
| 88 | if(hash) |
| 89 | for(name += 1; *name != '\0'; name++) |
| 90 | hash = (hash << 5) - hash + *name; |
| 91 | |
| 92 | return (hash + parent) % f->name_table_size; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 93 | } |
| 94 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 95 | static struct node *lookup_node(struct fuse *f, fino_t parent, |
| 96 | const char *name) |
| 97 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 98 | size_t hash = name_hash(f, parent, name); |
| 99 | struct node *node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 100 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 101 | for(node = f->name_table[hash]; node != NULL; node = node->name_next) |
| 102 | if(node->parent == parent && strcmp(node->name, name) == 0) |
| 103 | return node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 104 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 105 | return NULL; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 106 | } |
| 107 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 108 | static void hash_name(struct fuse *f, struct node *node, fino_t parent, |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 109 | const char *name) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 110 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 111 | size_t hash = name_hash(f, parent, name); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 112 | node->parent = parent; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 113 | node->name = strdup(name); |
| 114 | node->name_next = f->name_table[hash]; |
| 115 | f->name_table[hash] = node; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 116 | } |
| 117 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 118 | static void unhash_name(struct fuse *f, struct node *node) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 119 | { |
| 120 | if(node->name != NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 121 | size_t hash = name_hash(f, node->parent, node->name); |
| 122 | struct node **nodep = &f->name_table[hash]; |
| 123 | |
| 124 | for(; *nodep != NULL; nodep = &(*nodep)->name_next) |
| 125 | if(*nodep == node) { |
| 126 | *nodep = node->name_next; |
| 127 | node->name_next = NULL; |
| 128 | free(node->name); |
| 129 | node->name = NULL; |
| 130 | node->parent = 0; |
| 131 | return; |
| 132 | } |
| 133 | fprintf(stderr, "fuse internal error: unable to unhash node: %lu\n", |
| 134 | node->ino); |
| 135 | abort(); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 136 | } |
| 137 | } |
| 138 | |
| 139 | static fino_t find_node(struct fuse *f, fino_t parent, char *name, |
| 140 | struct fuse_attr *attr, int version) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 141 | { |
| 142 | struct node *node; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 143 | int mode = attr->mode & S_IFMT; |
| 144 | int rdev = 0; |
| 145 | |
| 146 | if(S_ISCHR(mode) || S_ISBLK(mode)) |
| 147 | rdev = attr->rdev; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 148 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 149 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 150 | node = lookup_node(f, parent, name); |
| 151 | if(node != NULL) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 152 | if(node->mode == mode && node->rdev == rdev) |
| 153 | goto out; |
| 154 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 155 | unhash_name(f, node); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 156 | } |
| 157 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 158 | node = (struct node *) calloc(1, sizeof(struct node)); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 159 | node->mode = mode; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 160 | node->rdev = rdev; |
| 161 | hash_ino(f, node, next_ino(f)); |
| 162 | hash_name(f, node, parent, name); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 163 | |
| 164 | out: |
| 165 | node->version = version; |
| 166 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 167 | return get_ino(node); |
| 168 | } |
| 169 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 170 | static char *add_name(char *buf, char *s, const char *name) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 171 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 172 | size_t len = strlen(name); |
| 173 | s -= len; |
| 174 | if(s <= buf) { |
| 175 | fprintf(stderr, "fuse: path too long: ...%s\n", s + len); |
| 176 | return NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 177 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 178 | strncpy(s, name, len); |
| 179 | s--; |
| 180 | *s = '/'; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 181 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 182 | return s; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 183 | } |
| 184 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 185 | static char *get_path_name(struct fuse *f, fino_t ino, const char *name) |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 186 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 187 | char buf[FUSE_MAX_PATH]; |
| 188 | char *s = buf + FUSE_MAX_PATH - 1; |
| 189 | struct node *node; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 190 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 191 | *s = '\0'; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 192 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 193 | if(name != NULL) { |
| 194 | s = add_name(buf, s, name); |
| 195 | if(s == NULL) |
| 196 | return NULL; |
| 197 | } |
| 198 | |
| 199 | pthread_mutex_lock(&f->lock); |
| 200 | for(node = get_node(f, ino); node->ino != FUSE_ROOT_INO; |
| 201 | node = get_node(f, node->parent)) { |
| 202 | if(node->name == NULL) { |
| 203 | s = NULL; |
| 204 | break; |
| 205 | } |
| 206 | |
| 207 | s = add_name(buf, s, node->name); |
| 208 | if(s == NULL) |
| 209 | break; |
| 210 | } |
| 211 | pthread_mutex_unlock(&f->lock); |
| 212 | |
| 213 | if(s == NULL) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 214 | return NULL; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 215 | else if(*s == '\0') |
| 216 | return strdup("/"); |
| 217 | else |
| 218 | return strdup(s); |
| 219 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 220 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 221 | static char *get_path(struct fuse *f, fino_t ino) |
| 222 | { |
| 223 | return get_path_name(f, ino, NULL); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 224 | } |
| 225 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 226 | static void destroy_node(struct fuse *f, fino_t ino, int version) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 227 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 228 | struct node *node; |
| 229 | |
| 230 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 231 | node = get_node(f, ino); |
Miklos Szeredi | 39f2867 | 2001-11-14 14:52:54 +0000 | [diff] [blame] | 232 | if(node->version == version && ino != FUSE_ROOT_INO) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 233 | unhash_name(f, node); |
| 234 | unhash_ino(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 235 | free_node(node); |
| 236 | } |
| 237 | pthread_mutex_unlock(&f->lock); |
| 238 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 239 | } |
| 240 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 241 | static void remove_node(struct fuse *f, fino_t dir, const char *name) |
| 242 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 243 | struct node *node; |
| 244 | |
| 245 | pthread_mutex_lock(&f->lock); |
| 246 | node = lookup_node(f, dir, name); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 247 | if(node == NULL) { |
| 248 | fprintf(stderr, "fuse internal error: unable to remove node %lu/%s\n", |
| 249 | dir, name); |
| 250 | abort(); |
| 251 | } |
| 252 | unhash_name(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 253 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 254 | } |
| 255 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 256 | static void rename_node(struct fuse *f, fino_t olddir, const char *oldname, |
| 257 | fino_t newdir, const char *newname) |
| 258 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 259 | struct node *node; |
| 260 | struct node *newnode; |
| 261 | |
| 262 | pthread_mutex_lock(&f->lock); |
| 263 | node = lookup_node(f, olddir, oldname); |
| 264 | newnode = lookup_node(f, newdir, newname); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 265 | if(node == NULL) { |
| 266 | fprintf(stderr, "fuse internal error: unable to rename node %lu/%s\n", |
| 267 | olddir, oldname); |
| 268 | abort(); |
| 269 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 270 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 271 | if(newnode != NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 272 | unhash_name(f, newnode); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 273 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 274 | unhash_name(f, node); |
| 275 | hash_name(f, node, newdir, newname); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 276 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 277 | } |
| 278 | |
| 279 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 280 | static void convert_stat(struct stat *stbuf, struct fuse_attr *attr) |
| 281 | { |
| 282 | attr->mode = stbuf->st_mode; |
| 283 | attr->nlink = stbuf->st_nlink; |
| 284 | attr->uid = stbuf->st_uid; |
| 285 | attr->gid = stbuf->st_gid; |
| 286 | attr->rdev = stbuf->st_rdev; |
| 287 | attr->size = stbuf->st_size; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 288 | attr->blocks = stbuf->st_blocks; |
| 289 | attr->atime = stbuf->st_atime; |
| 290 | attr->mtime = stbuf->st_mtime; |
| 291 | attr->ctime = stbuf->st_ctime; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 292 | attr->_dummy = 4096; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 293 | } |
| 294 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 295 | static int fill_dir(struct fuse_dirhandle *dh, char *name, int type) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 296 | { |
| 297 | struct fuse_dirent dirent; |
| 298 | size_t reclen; |
| 299 | size_t res; |
| 300 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 301 | dirent.ino = (unsigned long) -1; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 302 | dirent.namelen = strlen(name); |
| 303 | strncpy(dirent.name, name, sizeof(dirent.name)); |
| 304 | dirent.type = type; |
| 305 | reclen = FUSE_DIRENT_SIZE(&dirent); |
| 306 | res = fwrite(&dirent, reclen, 1, dh->fp); |
| 307 | if(res == 0) { |
| 308 | perror("writing directory file"); |
| 309 | return -EIO; |
| 310 | } |
| 311 | return 0; |
| 312 | } |
| 313 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 314 | static void send_reply_raw(struct fuse *f, char *outbuf, size_t outsize) |
| 315 | { |
| 316 | int res; |
| 317 | |
| 318 | if((f->flags & FUSE_DEBUG)) { |
| 319 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 320 | printf(" unique: %i, error: %i (%s), outsize: %i\n", out->unique, |
| 321 | out->error, strerror(-out->error), outsize); |
| 322 | fflush(stdout); |
| 323 | } |
Miklos Szeredi | 3323203 | 2001-11-19 17:55:51 +0000 | [diff] [blame] | 324 | |
| 325 | pthread_mutex_lock(&f->lock); |
| 326 | f->numavail ++; |
| 327 | pthread_mutex_unlock(&f->lock); |
| 328 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 329 | res = write(f->fd, outbuf, outsize); |
| 330 | if(res == -1) { |
| 331 | /* ENOENT means the operation was interrupted */ |
| 332 | if(errno != ENOENT) |
| 333 | perror("writing fuse device"); |
| 334 | } |
| 335 | } |
| 336 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 337 | static void send_reply(struct fuse *f, struct fuse_in_header *in, int error, |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 338 | void *arg, size_t argsize) |
| 339 | { |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 340 | char *outbuf; |
| 341 | size_t outsize; |
| 342 | struct fuse_out_header *out; |
| 343 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 344 | if(error > 0) { |
| 345 | fprintf(stderr, "positive error code: %i\n", error); |
| 346 | error = -ERANGE; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 347 | } |
| 348 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 349 | if(error) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 350 | argsize = 0; |
| 351 | |
| 352 | outsize = sizeof(struct fuse_out_header) + argsize; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 353 | outbuf = (char *) malloc(outsize); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 354 | out = (struct fuse_out_header *) outbuf; |
| 355 | out->unique = in->unique; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 356 | out->error = error; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 357 | if(argsize != 0) |
| 358 | memcpy(outbuf + sizeof(struct fuse_out_header), arg, argsize); |
| 359 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 360 | send_reply_raw(f, outbuf, outsize); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 361 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 362 | free(outbuf); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 363 | } |
| 364 | |
| 365 | static void do_lookup(struct fuse *f, struct fuse_in_header *in, char *name) |
| 366 | { |
| 367 | int res; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 368 | char *path; |
| 369 | struct stat buf; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 370 | struct fuse_lookup_out arg; |
| 371 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 372 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 373 | path = get_path_name(f, in->ino, name); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 374 | if(path != NULL) { |
| 375 | res = -ENOSYS; |
| 376 | if(f->op.getattr) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 377 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 378 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 379 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 380 | if(res == 0) { |
| 381 | convert_stat(&buf, &arg.attr); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 382 | arg.ino = find_node(f, in->ino, name, &arg.attr, in->unique); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 383 | } |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 384 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 385 | } |
| 386 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 387 | static void do_forget(struct fuse *f, struct fuse_in_header *in, |
| 388 | struct fuse_forget_in *arg) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 389 | { |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 390 | if(f->flags & FUSE_DEBUG) { |
| 391 | printf("FORGET %li/%i\n", in->ino, arg->version); |
| 392 | fflush(stdout); |
| 393 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 394 | destroy_node(f, in->ino, arg->version); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 395 | } |
| 396 | |
| 397 | static void do_getattr(struct fuse *f, struct fuse_in_header *in) |
| 398 | { |
| 399 | int res; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 400 | char *path; |
| 401 | struct stat buf; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 402 | struct fuse_getattr_out arg; |
| 403 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 404 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 405 | path = get_path(f, in->ino); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 406 | if(path != NULL) { |
| 407 | res = -ENOSYS; |
| 408 | if(f->op.getattr) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 409 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 410 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 411 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 412 | if(res == 0) |
| 413 | convert_stat(&buf, &arg.attr); |
| 414 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 415 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 416 | } |
| 417 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 418 | 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] | 419 | { |
| 420 | int res; |
| 421 | |
| 422 | res = -ENOSYS; |
| 423 | if(f->op.chmod) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 424 | res = f->op.chmod(path, attr->mode); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 425 | |
| 426 | return res; |
| 427 | } |
| 428 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 429 | static int do_chown(struct fuse *f, const char *path, struct fuse_attr *attr, |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 430 | int valid) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 431 | { |
| 432 | int res; |
| 433 | uid_t uid = (valid & FATTR_UID) ? attr->uid : (uid_t) -1; |
| 434 | gid_t gid = (valid & FATTR_GID) ? attr->gid : (gid_t) -1; |
| 435 | |
| 436 | res = -ENOSYS; |
| 437 | if(f->op.chown) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 438 | res = f->op.chown(path, uid, gid); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 439 | |
| 440 | return res; |
| 441 | } |
| 442 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 443 | static int do_truncate(struct fuse *f, const char *path, |
| 444 | struct fuse_attr *attr) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 445 | { |
| 446 | int res; |
| 447 | |
| 448 | res = -ENOSYS; |
| 449 | if(f->op.truncate) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 450 | res = f->op.truncate(path, attr->size); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 451 | |
| 452 | return res; |
| 453 | } |
| 454 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 455 | 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] | 456 | { |
| 457 | int res; |
| 458 | struct utimbuf buf; |
| 459 | buf.actime = attr->atime; |
| 460 | buf.modtime = attr->mtime; |
| 461 | res = -ENOSYS; |
| 462 | if(f->op.utime) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 463 | res = f->op.utime(path, &buf); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 464 | |
| 465 | return res; |
| 466 | } |
| 467 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 468 | static void do_setattr(struct fuse *f, struct fuse_in_header *in, |
| 469 | struct fuse_setattr_in *arg) |
| 470 | { |
| 471 | int res; |
| 472 | char *path; |
| 473 | int valid = arg->valid; |
| 474 | struct fuse_attr *attr = &arg->attr; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 475 | struct fuse_setattr_out outarg; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 476 | |
| 477 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 478 | path = get_path(f, in->ino); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 479 | if(path != NULL) { |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 480 | res = -ENOSYS; |
| 481 | if(f->op.getattr) { |
| 482 | res = 0; |
| 483 | if(!res && (valid & FATTR_MODE)) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 484 | res = do_chmod(f, path, attr); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 485 | if(!res && (valid & (FATTR_UID | FATTR_GID))) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 486 | res = do_chown(f, path, attr, valid); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 487 | if(!res && (valid & FATTR_SIZE)) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 488 | res = do_truncate(f, path, attr); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 489 | if(!res && (valid & FATTR_UTIME)) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 490 | res = do_utime(f, path, attr); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 491 | if(!res) { |
| 492 | struct stat buf; |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 493 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 494 | if(!res) |
| 495 | convert_stat(&buf, &outarg.attr); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 496 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 497 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 498 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 499 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 500 | send_reply(f, in, res, &outarg, sizeof(outarg)); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 501 | } |
| 502 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 503 | static void do_readlink(struct fuse *f, struct fuse_in_header *in) |
| 504 | { |
| 505 | int res; |
| 506 | char link[PATH_MAX + 1]; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 507 | char *path; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 508 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 509 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 510 | path = get_path(f, in->ino); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 511 | if(path != NULL) { |
| 512 | res = -ENOSYS; |
| 513 | if(f->op.readlink) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 514 | res = f->op.readlink(path, link, sizeof(link)); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 515 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 516 | } |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 517 | link[PATH_MAX] = '\0'; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 518 | send_reply(f, in, res, link, !res ? strlen(link) : 0); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 519 | } |
| 520 | |
| 521 | static void do_getdir(struct fuse *f, struct fuse_in_header *in) |
| 522 | { |
| 523 | int res; |
| 524 | struct fuse_getdir_out arg; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 525 | struct fuse_dirhandle dh; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 526 | char *path; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 527 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 528 | dh.fuse = f; |
| 529 | dh.fp = tmpfile(); |
| 530 | dh.dir = in->ino; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 531 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 532 | path = get_path(f, in->ino); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 533 | if(path != NULL) { |
| 534 | res = -ENOSYS; |
| 535 | if(f->op.getdir) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 536 | res = f->op.getdir(path, &dh, (fuse_dirfil_t) fill_dir); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 537 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 538 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 539 | fflush(dh.fp); |
| 540 | arg.fd = fileno(dh.fp); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 541 | send_reply(f, in, res, &arg, sizeof(arg)); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 542 | fclose(dh.fp); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 543 | } |
| 544 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 545 | static void do_mknod(struct fuse *f, struct fuse_in_header *in, |
| 546 | struct fuse_mknod_in *inarg) |
| 547 | { |
| 548 | int res; |
| 549 | char *path; |
| 550 | struct fuse_mknod_out outarg; |
| 551 | struct stat buf; |
| 552 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 553 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 554 | path = get_path_name(f, in->ino, inarg->name); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 555 | if(path != NULL) { |
| 556 | res = -ENOSYS; |
| 557 | if(f->op.mknod && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 558 | res = f->op.mknod(path, inarg->mode, inarg->rdev); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 559 | if(res == 0) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 560 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 561 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 562 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 563 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 564 | if(res == 0) { |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 565 | convert_stat(&buf, &outarg.attr); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 566 | outarg.ino = find_node(f, in->ino, inarg->name, &outarg.attr, |
| 567 | in->unique); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 568 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 569 | |
| 570 | send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 571 | } |
| 572 | |
| 573 | static void do_mkdir(struct fuse *f, struct fuse_in_header *in, |
| 574 | struct fuse_mkdir_in *inarg) |
| 575 | { |
| 576 | int res; |
| 577 | char *path; |
| 578 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 579 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 580 | path = get_path_name(f, in->ino, inarg->name); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 581 | if(path != NULL) { |
| 582 | res = -ENOSYS; |
| 583 | if(f->op.mkdir) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 584 | res = f->op.mkdir(path, inarg->mode); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 585 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 586 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 587 | send_reply(f, in, res, NULL, 0); |
| 588 | } |
| 589 | |
| 590 | static void do_remove(struct fuse *f, struct fuse_in_header *in, char *name) |
| 591 | { |
| 592 | int res; |
| 593 | char *path; |
| 594 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 595 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 596 | path = get_path_name(f, in->ino, name); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 597 | if(path != NULL) { |
| 598 | res = -ENOSYS; |
| 599 | if(in->opcode == FUSE_UNLINK) { |
| 600 | if(f->op.unlink) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 601 | res = f->op.unlink(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 602 | } |
| 603 | else { |
| 604 | if(f->op.rmdir) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 605 | res = f->op.rmdir(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 606 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 607 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 608 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 609 | if(res == 0) |
| 610 | remove_node(f, in->ino, name); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 611 | send_reply(f, in, res, NULL, 0); |
| 612 | } |
| 613 | |
| 614 | static void do_symlink(struct fuse *f, struct fuse_in_header *in, char *name, |
| 615 | char *link) |
| 616 | { |
| 617 | int res; |
| 618 | char *path; |
| 619 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 620 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 621 | path = get_path_name(f, in->ino, name); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 622 | if(path != NULL) { |
| 623 | res = -ENOSYS; |
| 624 | if(f->op.symlink) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 625 | res = f->op.symlink(link, path); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 626 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 627 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 628 | send_reply(f, in, res, NULL, 0); |
| 629 | } |
| 630 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 631 | static void do_rename(struct fuse *f, struct fuse_in_header *in, |
| 632 | struct fuse_rename_in *inarg) |
| 633 | { |
| 634 | int res; |
| 635 | fino_t olddir = in->ino; |
| 636 | fino_t newdir = inarg->newdir; |
| 637 | char *oldname = inarg->names; |
| 638 | char *newname = inarg->names + strlen(oldname) + 1; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 639 | char *oldpath; |
| 640 | char *newpath; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 641 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 642 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 643 | oldpath = get_path_name(f, olddir, oldname); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 644 | if(oldpath != NULL) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 645 | newpath = get_path_name(f, newdir, newname); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 646 | if(newpath != NULL) { |
| 647 | res = -ENOSYS; |
| 648 | if(f->op.rename) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 649 | res = f->op.rename(oldpath, newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 650 | if(res == 0) |
| 651 | rename_node(f, olddir, oldname, newdir, newname); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 652 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 653 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 654 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 655 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 656 | send_reply(f, in, res, NULL, 0); |
| 657 | } |
| 658 | |
| 659 | static void do_link(struct fuse *f, struct fuse_in_header *in, |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 660 | struct fuse_link_in *arg) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 661 | { |
| 662 | int res; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 663 | char *oldpath; |
| 664 | char *newpath; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 665 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 666 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 667 | oldpath = get_path(f, in->ino); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 668 | if(oldpath != NULL) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 669 | newpath = get_path_name(f, arg->newdir, arg->name); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 670 | if(newpath != NULL) { |
| 671 | res = -ENOSYS; |
| 672 | if(f->op.link) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 673 | res = f->op.link(oldpath, newpath); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 674 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 675 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 676 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 677 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 678 | send_reply(f, in, res, NULL, 0); |
| 679 | } |
| 680 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 681 | static void do_open(struct fuse *f, struct fuse_in_header *in, |
| 682 | struct fuse_open_in *arg) |
| 683 | { |
| 684 | int res; |
| 685 | char *path; |
| 686 | |
| 687 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 688 | path = get_path(f, in->ino); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 689 | if(path != NULL) { |
| 690 | res = -ENOSYS; |
| 691 | if(f->op.open) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 692 | res = f->op.open(path, arg->flags); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 693 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 694 | } |
| 695 | send_reply(f, in, res, NULL, 0); |
| 696 | } |
| 697 | |
| 698 | static void do_read(struct fuse *f, struct fuse_in_header *in, |
| 699 | struct fuse_read_in *arg) |
| 700 | { |
| 701 | int res; |
| 702 | char *path; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 703 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + arg->size); |
| 704 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 705 | char *buf = outbuf + sizeof(struct fuse_out_header); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 706 | size_t size; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 707 | size_t outsize; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 708 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 709 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 710 | path = get_path(f, in->ino); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 711 | if(path != NULL) { |
| 712 | res = -ENOSYS; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 713 | if(f->op.read) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 714 | res = f->op.read(path, buf, arg->size, arg->offset); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 715 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 716 | } |
| 717 | |
| 718 | size = 0; |
| 719 | if(res > 0) { |
| 720 | size = res; |
| 721 | res = 0; |
| 722 | } |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 723 | out->unique = in->unique; |
| 724 | out->error = res; |
| 725 | outsize = sizeof(struct fuse_out_header) + size; |
| 726 | |
| 727 | send_reply_raw(f, outbuf, outsize); |
| 728 | free(outbuf); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 729 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 730 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 731 | static void do_write(struct fuse *f, struct fuse_in_header *in, |
| 732 | struct fuse_write_in *arg) |
| 733 | { |
| 734 | int res; |
| 735 | char *path; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 736 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 737 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 738 | path = get_path(f, in->ino); |
| 739 | if(path != NULL) { |
| 740 | res = -ENOSYS; |
| 741 | if(f->op.write) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 742 | res = f->op.write(path, arg->buf, arg->size, arg->offset); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 743 | free(path); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 744 | } |
| 745 | |
| 746 | if(res > 0) { |
| 747 | if((size_t) res != arg->size) { |
| 748 | fprintf(stderr, "short write: %u (should be %u)\n", res, |
| 749 | arg->size); |
| 750 | res = -EIO; |
| 751 | } |
| 752 | else |
| 753 | res = 0; |
| 754 | } |
| 755 | |
| 756 | send_reply(f, in, res, NULL, 0); |
| 757 | } |
| 758 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 759 | static void free_cmd(struct fuse_cmd *cmd) |
| 760 | { |
| 761 | free(cmd->buf); |
| 762 | free(cmd); |
| 763 | } |
| 764 | |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 765 | void __fuse_process_cmd(struct fuse *f, struct fuse_cmd *cmd) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 766 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 767 | struct fuse_in_header *in = (struct fuse_in_header *) cmd->buf; |
| 768 | void *inarg = cmd->buf + sizeof(struct fuse_in_header); |
| 769 | size_t argsize; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 770 | |
Miklos Szeredi | 3323203 | 2001-11-19 17:55:51 +0000 | [diff] [blame] | 771 | pthread_mutex_lock(&f->lock); |
| 772 | f->numavail --; |
| 773 | pthread_mutex_unlock(&f->lock); |
| 774 | |
Miklos Szeredi | c0938ea | 2001-11-07 12:35:06 +0000 | [diff] [blame] | 775 | if((f->flags & FUSE_DEBUG)) { |
| 776 | printf("unique: %i, opcode: %i, ino: %li, insize: %i\n", in->unique, |
| 777 | in->opcode, in->ino, cmd->buflen); |
| 778 | fflush(stdout); |
| 779 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 780 | |
| 781 | argsize = cmd->buflen - sizeof(struct fuse_in_header); |
| 782 | |
| 783 | switch(in->opcode) { |
| 784 | case FUSE_LOOKUP: |
| 785 | do_lookup(f, in, (char *) inarg); |
| 786 | break; |
| 787 | |
Miklos Szeredi | fe42812 | 2001-11-20 19:12:28 +0000 | [diff] [blame] | 788 | case FUSE_FORGET: |
| 789 | do_forget(f, in, (struct fuse_forget_in *) inarg); |
| 790 | break; |
| 791 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 792 | case FUSE_GETATTR: |
| 793 | do_getattr(f, in); |
| 794 | break; |
| 795 | |
| 796 | case FUSE_SETATTR: |
| 797 | do_setattr(f, in, (struct fuse_setattr_in *) inarg); |
| 798 | break; |
| 799 | |
| 800 | case FUSE_READLINK: |
| 801 | do_readlink(f, in); |
| 802 | break; |
| 803 | |
| 804 | case FUSE_GETDIR: |
| 805 | do_getdir(f, in); |
| 806 | break; |
| 807 | |
| 808 | case FUSE_MKNOD: |
| 809 | do_mknod(f, in, (struct fuse_mknod_in *) inarg); |
| 810 | break; |
| 811 | |
| 812 | case FUSE_MKDIR: |
| 813 | do_mkdir(f, in, (struct fuse_mkdir_in *) inarg); |
| 814 | break; |
| 815 | |
| 816 | case FUSE_UNLINK: |
| 817 | case FUSE_RMDIR: |
| 818 | do_remove(f, in, (char *) inarg); |
| 819 | break; |
| 820 | |
| 821 | case FUSE_SYMLINK: |
| 822 | do_symlink(f, in, (char *) inarg, |
| 823 | ((char *) inarg) + strlen((char *) inarg) + 1); |
| 824 | break; |
| 825 | |
| 826 | case FUSE_RENAME: |
| 827 | do_rename(f, in, (struct fuse_rename_in *) inarg); |
| 828 | break; |
| 829 | |
| 830 | case FUSE_LINK: |
| 831 | do_link(f, in, (struct fuse_link_in *) inarg); |
| 832 | break; |
| 833 | |
| 834 | case FUSE_OPEN: |
| 835 | do_open(f, in, (struct fuse_open_in *) inarg); |
| 836 | break; |
| 837 | |
| 838 | case FUSE_READ: |
| 839 | do_read(f, in, (struct fuse_read_in *) inarg); |
| 840 | break; |
| 841 | |
| 842 | case FUSE_WRITE: |
| 843 | do_write(f, in, (struct fuse_write_in *) inarg); |
| 844 | break; |
| 845 | |
| 846 | default: |
| 847 | fprintf(stderr, "Operation %i not implemented\n", in->opcode); |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 848 | send_reply(f, in, -ENOSYS, NULL, 0); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 849 | } |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 850 | |
| 851 | free_cmd(cmd); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 852 | } |
| 853 | |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 854 | struct fuse_cmd *__fuse_read_cmd(struct fuse *f) |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 855 | { |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 856 | ssize_t res; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 857 | struct fuse_cmd *cmd; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 858 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 859 | cmd = (struct fuse_cmd *) malloc(sizeof(struct fuse_cmd)); |
| 860 | cmd->buf = (char *) malloc(FUSE_MAX_IN); |
| 861 | |
Miklos Szeredi | fe42812 | 2001-11-20 19:12:28 +0000 | [diff] [blame] | 862 | res = read(f->fd, cmd->buf, FUSE_MAX_IN); |
| 863 | if(res == -1) { |
| 864 | perror("reading fuse device"); |
| 865 | /* BAD... This will happen again */ |
| 866 | free_cmd(cmd); |
| 867 | return NULL; |
| 868 | } |
| 869 | if((size_t) res < sizeof(struct fuse_in_header)) { |
| 870 | fprintf(stderr, "short read on fuse device\n"); |
| 871 | /* Cannot happen */ |
| 872 | free_cmd(cmd); |
| 873 | return NULL; |
| 874 | } |
| 875 | cmd->buflen = res; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 876 | return cmd; |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 877 | } |
| 878 | |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 879 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 880 | void fuse_loop(struct fuse *f) |
| 881 | { |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 882 | while(1) { |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 883 | struct fuse_cmd *cmd = __fuse_read_cmd(f); |
| 884 | if(cmd == NULL) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 885 | exit(1); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 886 | |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 887 | __fuse_process_cmd(f, cmd); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 888 | } |
| 889 | } |
| 890 | |
Miklos Szeredi | 8cffdb9 | 2001-11-09 14:49:18 +0000 | [diff] [blame] | 891 | struct fuse *fuse_new(int fd, int flags) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 892 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 893 | struct fuse *f; |
| 894 | struct node *root; |
Miklos Szeredi | fe42812 | 2001-11-20 19:12:28 +0000 | [diff] [blame] | 895 | char verstr[128]; |
Miklos Szeredi | cc8c975 | 2001-11-21 10:03:39 +0000 | [diff] [blame^] | 896 | char *realver = getenv(FUSE_KERNEL_VERSION_ENV); |
Miklos Szeredi | fe42812 | 2001-11-20 19:12:28 +0000 | [diff] [blame] | 897 | |
| 898 | if(realver != NULL) { |
| 899 | sprintf(verstr, "%i", FUSE_KERNEL_VERSION); |
| 900 | if(strcmp(verstr, realver) != 0) { |
| 901 | fprintf(stderr, |
| 902 | "Warning: FUSE version mismatch: using %s, kernel is %s\n", |
| 903 | realver, verstr); |
| 904 | } |
| 905 | } |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 906 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 907 | f = (struct fuse *) calloc(1, sizeof(struct fuse)); |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 908 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 909 | f->flags = flags; |
Miklos Szeredi | 8cffdb9 | 2001-11-09 14:49:18 +0000 | [diff] [blame] | 910 | f->fd = fd; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 911 | f->ctr = 0; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 912 | /* FIXME: Dynamic hash table */ |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 913 | f->name_table_size = 14057; |
| 914 | f->name_table = (struct node **) |
| 915 | calloc(1, sizeof(struct node *) * f->name_table_size); |
| 916 | f->ino_table_size = 14057; |
| 917 | f->ino_table = (struct node **) |
| 918 | calloc(1, sizeof(struct node *) * f->ino_table_size); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 919 | pthread_mutex_init(&f->lock, NULL); |
Miklos Szeredi | 3323203 | 2001-11-19 17:55:51 +0000 | [diff] [blame] | 920 | f->numworker = 0; |
| 921 | f->numavail = 0; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 922 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 923 | root = (struct node *) calloc(1, sizeof(struct node)); |
Miklos Szeredi | 8cffdb9 | 2001-11-09 14:49:18 +0000 | [diff] [blame] | 924 | root->mode = 0; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 925 | root->rdev = 0; |
| 926 | root->name = strdup("/"); |
| 927 | root->parent = 0; |
| 928 | hash_ino(f, root, FUSE_ROOT_INO); |
| 929 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 930 | return f; |
| 931 | } |
| 932 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 933 | void fuse_set_operations(struct fuse *f, const struct fuse_operations *op) |
| 934 | { |
| 935 | f->op = *op; |
| 936 | } |
| 937 | |
| 938 | void fuse_destroy(struct fuse *f) |
| 939 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 940 | size_t i; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 941 | for(i = 0; i < f->ino_table_size; i++) { |
| 942 | struct node *node; |
| 943 | struct node *next; |
| 944 | for(node = f->ino_table[i]; node != NULL; node = next) { |
| 945 | next = node->ino_next; |
| 946 | free_node(node); |
| 947 | } |
| 948 | } |
| 949 | free(f->ino_table); |
| 950 | free(f->name_table); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 951 | pthread_mutex_destroy(&f->lock); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 952 | free(f); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 953 | } |