Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | FUSE: Filesystem in Userspace |
Miklos Szeredi | 2e6b6f2 | 2004-07-07 19:19:53 +0000 | [diff] [blame] | 3 | Copyright (C) 2001-2004 Miklos Szeredi <miklos@szeredi.hu> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 4 | |
Miklos Szeredi | 8b39a9f | 2002-10-25 12:41:16 +0000 | [diff] [blame] | 5 | This program can be distributed under the terms of the GNU LGPL. |
| 6 | See the file COPYING.LIB |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
Miklos Szeredi | cb26451 | 2004-06-23 18:52:50 +0000 | [diff] [blame] | 9 | #include <config.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 10 | #include "fuse_i.h" |
Miklos Szeredi | b9b94cd | 2004-12-01 18:56:39 +0000 | [diff] [blame] | 11 | #include "fuse_kernel.h" |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 12 | |
| 13 | #include <string.h> |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 14 | #include <stdlib.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 15 | #include <unistd.h> |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 16 | #include <limits.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 17 | #include <errno.h> |
Miklos Szeredi | 019b4e9 | 2001-12-26 18:08:09 +0000 | [diff] [blame] | 18 | #include <sys/param.h> |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 19 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 20 | #define FUSE_KERNEL_MINOR_VERSION_NEED 1 |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 21 | #define FUSE_VERSION_FILE_OLD "/proc/fs/fuse/version" |
Miklos Szeredi | 162bcbb | 2004-11-29 23:43:44 +0000 | [diff] [blame] | 22 | #define FUSE_VERSION_FILE_NEW "/sys/fs/fuse/version" |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 23 | #define FUSE_DEV_OLD "/proc/fs/fuse/dev" |
| 24 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 25 | #define FUSE_MAX_PATH 4096 |
Miklos Szeredi | 6bf8b68 | 2002-10-28 08:49:39 +0000 | [diff] [blame] | 26 | #define PARAM(inarg) (((char *)(inarg)) + sizeof(*inarg)) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 27 | |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 28 | #define ENTRY_REVALIDATE_TIME 1 /* sec */ |
| 29 | #define ATTR_REVALIDATE_TIME 1 /* sec */ |
| 30 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 31 | static struct fuse_context *(*fuse_getcontext)(void) = NULL; |
| 32 | |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 33 | static const char *opname(enum fuse_opcode opcode) |
| 34 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 35 | switch (opcode) { |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 36 | case FUSE_LOOKUP: return "LOOKUP"; |
| 37 | case FUSE_FORGET: return "FORGET"; |
| 38 | case FUSE_GETATTR: return "GETATTR"; |
| 39 | case FUSE_SETATTR: return "SETATTR"; |
| 40 | case FUSE_READLINK: return "READLINK"; |
| 41 | case FUSE_SYMLINK: return "SYMLINK"; |
| 42 | case FUSE_GETDIR: return "GETDIR"; |
| 43 | case FUSE_MKNOD: return "MKNOD"; |
| 44 | case FUSE_MKDIR: return "MKDIR"; |
| 45 | case FUSE_UNLINK: return "UNLINK"; |
| 46 | case FUSE_RMDIR: return "RMDIR"; |
| 47 | case FUSE_RENAME: return "RENAME"; |
| 48 | case FUSE_LINK: return "LINK"; |
| 49 | case FUSE_OPEN: return "OPEN"; |
| 50 | case FUSE_READ: return "READ"; |
| 51 | case FUSE_WRITE: return "WRITE"; |
| 52 | case FUSE_STATFS: return "STATFS"; |
Miklos Szeredi | 99f2074 | 2004-05-19 08:01:10 +0000 | [diff] [blame] | 53 | case FUSE_FLUSH: return "FLUSH"; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 54 | case FUSE_RELEASE: return "RELEASE"; |
| 55 | case FUSE_FSYNC: return "FSYNC"; |
| 56 | case FUSE_SETXATTR: return "SETXATTR"; |
| 57 | case FUSE_GETXATTR: return "GETXATTR"; |
| 58 | case FUSE_LISTXATTR: return "LISTXATTR"; |
| 59 | case FUSE_REMOVEXATTR: return "REMOVEXATTR"; |
Miklos Szeredi | 99f2074 | 2004-05-19 08:01:10 +0000 | [diff] [blame] | 60 | default: return "???"; |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 61 | } |
| 62 | } |
| 63 | |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 64 | static inline void dec_avail(struct fuse *f) |
| 65 | { |
| 66 | pthread_mutex_lock(&f->lock); |
| 67 | f->numavail --; |
| 68 | pthread_mutex_unlock(&f->lock); |
| 69 | } |
| 70 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 71 | static struct node *get_node_nocheck(struct fuse *f, nodeid_t nodeid) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 72 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 73 | size_t hash = nodeid % f->id_table_size; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 74 | struct node *node; |
| 75 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 76 | for (node = f->id_table[hash]; node != NULL; node = node->id_next) |
| 77 | if (node->nodeid == nodeid) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 78 | return node; |
| 79 | |
| 80 | return NULL; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 81 | } |
| 82 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 83 | static struct node *get_node(struct fuse *f, nodeid_t nodeid) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 84 | { |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 85 | struct node *node = get_node_nocheck(f, nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 86 | if (node != NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 87 | return node; |
| 88 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 89 | fprintf(stderr, "fuse internal error: inode %lu not found\n", nodeid); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 90 | abort(); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 91 | } |
| 92 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 93 | static void hash_id(struct fuse *f, struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 94 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 95 | size_t hash = node->nodeid % f->id_table_size; |
| 96 | node->id_next = f->id_table[hash]; |
| 97 | f->id_table[hash] = node; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 98 | } |
| 99 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 100 | static void unhash_id(struct fuse *f, struct node *node) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 101 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 102 | size_t hash = node->nodeid % f->id_table_size; |
| 103 | struct node **nodep = &f->id_table[hash]; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 104 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 105 | for (; *nodep != NULL; nodep = &(*nodep)->id_next) |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 106 | if (*nodep == node) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 107 | *nodep = node->id_next; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 108 | return; |
| 109 | } |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 110 | } |
| 111 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 112 | static nodeid_t next_id(struct fuse *f) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 113 | { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 114 | do { |
| 115 | f->ctr++; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 116 | if (!f->ctr) |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 117 | f->generation ++; |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 118 | } while (f->ctr == 0 || get_node_nocheck(f, f->ctr) != NULL); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 119 | return f->ctr; |
| 120 | } |
| 121 | |
| 122 | static void free_node(struct node *node) |
| 123 | { |
| 124 | free(node->name); |
| 125 | free(node); |
| 126 | } |
| 127 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 128 | 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] | 129 | { |
| 130 | unsigned int hash = *name; |
| 131 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 132 | if (hash) |
| 133 | for (name += 1; *name != '\0'; name++) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 134 | hash = (hash << 5) - hash + *name; |
| 135 | |
| 136 | return (hash + parent) % f->name_table_size; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 137 | } |
| 138 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 139 | static struct node *lookup_node(struct fuse *f, nodeid_t parent, |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 140 | const char *name) |
| 141 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 142 | size_t hash = name_hash(f, parent, name); |
| 143 | struct node *node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 144 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 145 | for (node = f->name_table[hash]; node != NULL; node = node->name_next) |
| 146 | if (node->parent == parent && strcmp(node->name, name) == 0) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 147 | return node; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 148 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 149 | return NULL; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 150 | } |
| 151 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 152 | static int hash_name(struct fuse *f, struct node *node, nodeid_t parent, |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 153 | const char *name) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 154 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 155 | size_t hash = name_hash(f, parent, name); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 156 | node->parent = parent; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 157 | node->name = strdup(name); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 158 | if (node->name == NULL) |
| 159 | return -1; |
| 160 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 161 | node->name_next = f->name_table[hash]; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 162 | f->name_table[hash] = node; |
| 163 | return 0; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 164 | } |
| 165 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 166 | static void unhash_name(struct fuse *f, struct node *node) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 167 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 168 | if (node->name != NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 169 | size_t hash = name_hash(f, node->parent, node->name); |
| 170 | struct node **nodep = &f->name_table[hash]; |
| 171 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 172 | for (; *nodep != NULL; nodep = &(*nodep)->name_next) |
| 173 | if (*nodep == node) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 174 | *nodep = node->name_next; |
| 175 | node->name_next = NULL; |
| 176 | free(node->name); |
| 177 | node->name = NULL; |
| 178 | node->parent = 0; |
| 179 | return; |
| 180 | } |
| 181 | fprintf(stderr, "fuse internal error: unable to unhash node: %lu\n", |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 182 | node->nodeid); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 183 | abort(); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 184 | } |
| 185 | } |
| 186 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 187 | static struct node *find_node(struct fuse *f, nodeid_t parent, char *name, |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 188 | struct fuse_attr *attr, int version) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 189 | { |
| 190 | struct node *node; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 191 | int mode = attr->mode & S_IFMT; |
| 192 | int rdev = 0; |
| 193 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 194 | if (S_ISCHR(mode) || S_ISBLK(mode)) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 195 | rdev = attr->rdev; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 196 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 197 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 198 | node = lookup_node(f, parent, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 199 | if (node != NULL) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 200 | if (node->mode == mode && node->rdev == rdev && |
| 201 | (!(f->flags & FUSE_USE_INO) || node->ino == attr->ino)) { |
| 202 | if (!(f->flags & FUSE_USE_INO)) |
| 203 | attr->ino = node->nodeid; |
| 204 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 205 | goto out; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 206 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 207 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 208 | unhash_name(f, node); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 209 | } |
| 210 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 211 | node = (struct node *) calloc(1, sizeof(struct node)); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 212 | if (node == NULL) |
Miklos Szeredi | c230991 | 2004-09-21 13:40:38 +0000 | [diff] [blame] | 213 | goto out_err; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 214 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 215 | node->nodeid = next_id(f); |
| 216 | if (!(f->flags & FUSE_USE_INO)) |
| 217 | attr->ino = node->nodeid; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 218 | node->mode = mode; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 219 | node->rdev = rdev; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 220 | node->ino = attr->ino; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 221 | node->open_count = 0; |
| 222 | node->is_hidden = 0; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 223 | node->generation = f->generation; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 224 | if (hash_name(f, node, parent, name) == -1) { |
| 225 | free(node); |
Miklos Szeredi | c230991 | 2004-09-21 13:40:38 +0000 | [diff] [blame] | 226 | node = NULL; |
| 227 | goto out_err; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 228 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 229 | hash_id(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 230 | |
Miklos Szeredi | c230991 | 2004-09-21 13:40:38 +0000 | [diff] [blame] | 231 | out: |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 232 | node->version = version; |
Miklos Szeredi | c230991 | 2004-09-21 13:40:38 +0000 | [diff] [blame] | 233 | out_err: |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 234 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 235 | return node; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 236 | } |
| 237 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 238 | static char *add_name(char *buf, char *s, const char *name) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 239 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 240 | size_t len = strlen(name); |
| 241 | s -= len; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 242 | if (s <= buf) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 243 | fprintf(stderr, "fuse: path too long: ...%s\n", s + len); |
| 244 | return NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 245 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 246 | strncpy(s, name, len); |
| 247 | s--; |
| 248 | *s = '/'; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 249 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 250 | return s; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 251 | } |
| 252 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 253 | 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] | 254 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 255 | char buf[FUSE_MAX_PATH]; |
| 256 | char *s = buf + FUSE_MAX_PATH - 1; |
| 257 | struct node *node; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 258 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 259 | *s = '\0'; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 260 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 261 | if (name != NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 262 | s = add_name(buf, s, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 263 | if (s == NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 264 | return NULL; |
| 265 | } |
| 266 | |
| 267 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 268 | for (node = get_node(f, nodeid); node->nodeid != FUSE_ROOT_ID; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 269 | node = get_node(f, node->parent)) { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 270 | if (node->name == NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 271 | s = NULL; |
| 272 | break; |
| 273 | } |
| 274 | |
| 275 | s = add_name(buf, s, node->name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 276 | if (s == NULL) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 277 | break; |
| 278 | } |
| 279 | pthread_mutex_unlock(&f->lock); |
| 280 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 281 | if (s == NULL) |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 282 | return NULL; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 283 | else if (*s == '\0') |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 284 | return strdup("/"); |
| 285 | else |
| 286 | return strdup(s); |
| 287 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 288 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 289 | static char *get_path(struct fuse *f, nodeid_t nodeid) |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 290 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 291 | return get_path_name(f, nodeid, NULL); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 292 | } |
| 293 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 294 | static void destroy_node(struct fuse *f, nodeid_t nodeid, int version) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 295 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 296 | struct node *node; |
| 297 | |
| 298 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 299 | node = get_node_nocheck(f, nodeid); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 300 | if (node && node->version == version && nodeid != FUSE_ROOT_ID) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 301 | unhash_name(f, node); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 302 | unhash_id(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 303 | free_node(node); |
| 304 | } |
| 305 | pthread_mutex_unlock(&f->lock); |
| 306 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 307 | } |
| 308 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 309 | 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] | 310 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 311 | struct node *node; |
| 312 | |
| 313 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 314 | node = lookup_node(f, dir, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 315 | if (node == NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 316 | fprintf(stderr, "fuse internal error: unable to remove node %lu/%s\n", |
| 317 | dir, name); |
| 318 | abort(); |
| 319 | } |
| 320 | unhash_name(f, node); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 321 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 322 | } |
| 323 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 324 | static int rename_node(struct fuse *f, nodeid_t olddir, const char *oldname, |
| 325 | nodeid_t newdir, const char *newname, int hide) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 326 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 327 | struct node *node; |
| 328 | struct node *newnode; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 329 | int err = 0; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 330 | |
| 331 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 332 | node = lookup_node(f, olddir, oldname); |
| 333 | newnode = lookup_node(f, newdir, newname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 334 | if (node == NULL) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 335 | fprintf(stderr, "fuse internal error: unable to rename node %lu/%s\n", |
| 336 | olddir, oldname); |
| 337 | abort(); |
| 338 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 339 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 340 | if (newnode != NULL) { |
| 341 | if (hide) { |
| 342 | fprintf(stderr, "fuse: hidden file got created during hiding\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 343 | err = -EBUSY; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 344 | goto out; |
| 345 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 346 | unhash_name(f, newnode); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 347 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 348 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 349 | unhash_name(f, node); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 350 | if (hash_name(f, node, newdir, newname) == -1) { |
| 351 | err = -ENOMEM; |
| 352 | goto out; |
| 353 | } |
| 354 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 355 | if (hide) |
| 356 | node->is_hidden = 1; |
| 357 | |
| 358 | out: |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 359 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 360 | return err; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 361 | } |
| 362 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 363 | static void convert_stat(struct stat *stbuf, struct fuse_attr *attr) |
| 364 | { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 365 | attr->ino = stbuf->st_ino; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 366 | attr->mode = stbuf->st_mode; |
| 367 | attr->nlink = stbuf->st_nlink; |
| 368 | attr->uid = stbuf->st_uid; |
| 369 | attr->gid = stbuf->st_gid; |
| 370 | attr->rdev = stbuf->st_rdev; |
| 371 | attr->size = stbuf->st_size; |
| 372 | attr->blocks = stbuf->st_blocks; |
| 373 | attr->atime = stbuf->st_atime; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 374 | attr->mtime = stbuf->st_mtime; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 375 | attr->ctime = stbuf->st_ctime; |
Miklos Szeredi | cb26451 | 2004-06-23 18:52:50 +0000 | [diff] [blame] | 376 | #ifdef HAVE_STRUCT_STAT_ST_ATIM |
| 377 | attr->atimensec = stbuf->st_atim.tv_nsec; |
| 378 | attr->mtimensec = stbuf->st_mtim.tv_nsec; |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 379 | attr->ctimensec = stbuf->st_ctim.tv_nsec; |
Miklos Szeredi | cb26451 | 2004-06-23 18:52:50 +0000 | [diff] [blame] | 380 | #endif |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 381 | } |
| 382 | |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 383 | static int fill_dir(struct fuse_dirhandle *dh, const char *name, int type, |
| 384 | ino_t ino) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 385 | { |
| 386 | struct fuse_dirent dirent; |
| 387 | size_t reclen; |
| 388 | size_t res; |
| 389 | |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 390 | if ((dh->fuse->flags & FUSE_USE_INO)) |
| 391 | dirent.ino = ino; |
| 392 | else |
| 393 | dirent.ino = (unsigned long) -1; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 394 | dirent.namelen = strlen(name); |
| 395 | strncpy(dirent.name, name, sizeof(dirent.name)); |
| 396 | dirent.type = type; |
| 397 | reclen = FUSE_DIRENT_SIZE(&dirent); |
| 398 | res = fwrite(&dirent, reclen, 1, dh->fp); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 399 | if (res == 0) { |
Miklos Szeredi | 9624998 | 2001-11-21 12:21:19 +0000 | [diff] [blame] | 400 | perror("fuse: writing directory file"); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 401 | return -EIO; |
| 402 | } |
| 403 | return 0; |
| 404 | } |
| 405 | |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 406 | static int send_reply_raw(struct fuse *f, char *outbuf, size_t outsize, |
| 407 | int locked) |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 408 | { |
| 409 | int res; |
| 410 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 411 | if ((f->flags & FUSE_DEBUG)) { |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 412 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 413 | printf(" unique: %i, error: %i (%s), outsize: %i\n", out->unique, |
| 414 | out->error, strerror(-out->error), outsize); |
| 415 | fflush(stdout); |
| 416 | } |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 417 | |
Miklos Szeredi | 4e71c9f | 2004-02-09 12:05:14 +0000 | [diff] [blame] | 418 | /* This needs to be done before the reply, otherwise the scheduler |
| 419 | could play tricks with us, and only let the counter be increased |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 420 | long after the operation is done */ |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 421 | if (!locked) |
| 422 | pthread_mutex_lock(&f->lock); |
| 423 | f->numavail ++; |
| 424 | if (!locked) |
| 425 | pthread_mutex_unlock(&f->lock); |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 426 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 427 | res = write(f->fd, outbuf, outsize); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 428 | if (res == -1) { |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 429 | /* ENOENT means the operation was interrupted */ |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 430 | if (!f->exited && errno != ENOENT) |
Miklos Szeredi | 9624998 | 2001-11-21 12:21:19 +0000 | [diff] [blame] | 431 | perror("fuse: writing device"); |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 432 | return -errno; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 433 | } |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 434 | return 0; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 435 | } |
| 436 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 437 | static int do_send_reply(struct fuse *f, struct fuse_in_header *in, int error, |
| 438 | void *arg, size_t argsize, int locked) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 439 | { |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 440 | int res; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 441 | char *outbuf; |
| 442 | size_t outsize; |
| 443 | struct fuse_out_header *out; |
| 444 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 445 | if (error <= -1000 || error > 0) { |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 446 | fprintf(stderr, "fuse: bad error value: %i\n", error); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 447 | error = -ERANGE; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 448 | } |
| 449 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 450 | if (error) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 451 | argsize = 0; |
| 452 | |
| 453 | outsize = sizeof(struct fuse_out_header) + argsize; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 454 | outbuf = (char *) malloc(outsize); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 455 | if (outbuf == NULL) { |
| 456 | fprintf(stderr, "fuse: failed to allocate reply buffer\n"); |
| 457 | res = -ENOMEM; |
| 458 | } else { |
| 459 | out = (struct fuse_out_header *) outbuf; |
| 460 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 461 | out->unique = in->unique; |
| 462 | out->error = error; |
| 463 | if (argsize != 0) |
| 464 | memcpy(outbuf + sizeof(struct fuse_out_header), arg, argsize); |
| 465 | |
| 466 | res = send_reply_raw(f, outbuf, outsize, locked); |
| 467 | free(outbuf); |
| 468 | } |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 469 | |
| 470 | return res; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 471 | } |
| 472 | |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 473 | static int send_reply(struct fuse *f, struct fuse_in_header *in, int error, |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 474 | void *arg, size_t argsize) |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 475 | { |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 476 | return do_send_reply(f, in, error, arg, argsize, 0); |
| 477 | } |
| 478 | |
| 479 | static int send_reply_locked(struct fuse *f, struct fuse_in_header *in, |
| 480 | int error, void *arg, size_t argsize) |
| 481 | { |
| 482 | return do_send_reply(f, in, error, arg, argsize, 1); |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 483 | } |
| 484 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 485 | 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] | 486 | { |
| 487 | struct node *node; |
| 488 | int isopen = 0; |
| 489 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 490 | node = lookup_node(f, dir, name); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 491 | if (node && node->open_count > 0) |
| 492 | isopen = 1; |
| 493 | pthread_mutex_unlock(&f->lock); |
| 494 | return isopen; |
| 495 | } |
| 496 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 497 | 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] | 498 | char *newname, size_t bufsize) |
| 499 | { |
| 500 | struct stat buf; |
| 501 | struct node *node; |
| 502 | struct node *newnode; |
| 503 | char *newpath; |
| 504 | int res; |
| 505 | int failctr = 10; |
| 506 | |
| 507 | if (!f->op.getattr) |
| 508 | return NULL; |
| 509 | |
| 510 | do { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 511 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 512 | node = lookup_node(f, dir, oldname); |
| 513 | if (node == NULL) { |
| 514 | fprintf(stderr, "fuse internal error: node %lu/%s not found\n", |
| 515 | dir, oldname); |
| 516 | abort(); |
| 517 | } |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 518 | do { |
| 519 | f->hidectr ++; |
| 520 | snprintf(newname, bufsize, ".fuse_hidden%08x%08x", |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 521 | (unsigned int) node->nodeid, f->hidectr); |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 522 | newnode = lookup_node(f, dir, newname); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 523 | } while(newnode); |
| 524 | pthread_mutex_unlock(&f->lock); |
| 525 | |
| 526 | newpath = get_path_name(f, dir, newname); |
| 527 | if (!newpath) |
| 528 | break; |
| 529 | |
| 530 | res = f->op.getattr(newpath, &buf); |
| 531 | if (res != 0) |
| 532 | break; |
| 533 | free(newpath); |
| 534 | newpath = NULL; |
| 535 | } while(--failctr); |
| 536 | |
| 537 | return newpath; |
| 538 | } |
| 539 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 540 | 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] | 541 | const char *oldname) |
| 542 | { |
| 543 | char newname[64]; |
| 544 | char *newpath; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 545 | int err = -EBUSY; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 546 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 547 | if (f->op.rename && f->op.unlink) { |
| 548 | newpath = hidden_name(f, dir, oldname, newname, sizeof(newname)); |
| 549 | if (newpath) { |
| 550 | int res = f->op.rename(oldpath, newpath); |
| 551 | if (res == 0) |
| 552 | err = rename_node(f, dir, oldname, dir, newname, 1); |
| 553 | free(newpath); |
| 554 | } |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 555 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 556 | return err; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 557 | } |
| 558 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 559 | static int lookup_path(struct fuse *f, nodeid_t nodeid, int version, char *name, |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 560 | const char *path, struct fuse_entry_out *arg) |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 561 | { |
| 562 | int res; |
| 563 | struct stat buf; |
| 564 | |
| 565 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 566 | if (res == 0) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 567 | struct node *node; |
| 568 | |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 569 | memset(arg, 0, sizeof(struct fuse_entry_out)); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 570 | convert_stat(&buf, &arg->attr); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 571 | node = find_node(f, nodeid, name, &arg->attr, version); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 572 | if (node == NULL) |
| 573 | res = -ENOMEM; |
| 574 | else { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 575 | arg->nodeid = node->nodeid; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 576 | arg->generation = node->generation; |
| 577 | arg->entry_valid = ENTRY_REVALIDATE_TIME; |
| 578 | arg->entry_valid_nsec = 0; |
| 579 | arg->attr_valid = ATTR_REVALIDATE_TIME; |
| 580 | arg->attr_valid_nsec = 0; |
| 581 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 582 | printf(" NODEID: %li\n", arg->nodeid); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 583 | fflush(stdout); |
| 584 | } |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 585 | } |
| 586 | } |
| 587 | return res; |
| 588 | } |
| 589 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 590 | static void do_lookup(struct fuse *f, struct fuse_in_header *in, char *name) |
| 591 | { |
| 592 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 593 | int res2; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 594 | char *path; |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 595 | struct fuse_entry_out arg; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 596 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 597 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 598 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 599 | if (path != NULL) { |
| 600 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 601 | printf("LOOKUP %s\n", path); |
| 602 | fflush(stdout); |
| 603 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 604 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 605 | if (f->op.getattr) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 606 | res = lookup_path(f, in->nodeid, in->unique, name, path, &arg); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 607 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 608 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 609 | res2 = send_reply(f, in, res, &arg, sizeof(arg)); |
| 610 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 611 | destroy_node(f, arg.nodeid, in->unique); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 612 | } |
| 613 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 614 | static void do_forget(struct fuse *f, struct fuse_in_header *in, |
| 615 | struct fuse_forget_in *arg) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 616 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 617 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 618 | printf("FORGET %li/%i\n", in->nodeid, arg->version); |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 619 | fflush(stdout); |
| 620 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 621 | destroy_node(f, in->nodeid, arg->version); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 622 | } |
| 623 | |
| 624 | static void do_getattr(struct fuse *f, struct fuse_in_header *in) |
| 625 | { |
| 626 | int res; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 627 | char *path; |
| 628 | struct stat buf; |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 629 | struct fuse_attr_out arg; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 630 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 631 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 632 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 633 | if (path != NULL) { |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 634 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 635 | if (f->op.getattr) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 636 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 637 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 638 | } |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 639 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 640 | if (res == 0) { |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 641 | memset(&arg, 0, sizeof(struct fuse_attr_out)); |
| 642 | arg.attr_valid = ATTR_REVALIDATE_TIME; |
| 643 | arg.attr_valid_nsec = 0; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 644 | convert_stat(&buf, &arg.attr); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 645 | if (!(f->flags & FUSE_USE_INO)) |
| 646 | arg.attr.ino = in->nodeid; |
| 647 | else { |
| 648 | struct node *node = get_node(f, in->nodeid); |
| 649 | node->ino = arg.attr.ino; |
| 650 | } |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 651 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 652 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 653 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 654 | } |
| 655 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 656 | 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] | 657 | { |
| 658 | int res; |
| 659 | |
| 660 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 661 | if (f->op.chmod) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 662 | res = f->op.chmod(path, attr->mode); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 663 | |
| 664 | return res; |
| 665 | } |
| 666 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 667 | 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] | 668 | int valid) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 669 | { |
| 670 | int res; |
| 671 | uid_t uid = (valid & FATTR_UID) ? attr->uid : (uid_t) -1; |
| 672 | gid_t gid = (valid & FATTR_GID) ? attr->gid : (gid_t) -1; |
| 673 | |
| 674 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 675 | if (f->op.chown) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 676 | res = f->op.chown(path, uid, gid); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 677 | |
| 678 | return res; |
| 679 | } |
| 680 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 681 | static int do_truncate(struct fuse *f, const char *path, |
| 682 | struct fuse_attr *attr) |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 683 | { |
| 684 | int res; |
| 685 | |
| 686 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 687 | if (f->op.truncate) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 688 | res = f->op.truncate(path, attr->size); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 689 | |
| 690 | return res; |
| 691 | } |
| 692 | |
Miklos Szeredi | 680a69a | 2001-11-16 13:31:14 +0000 | [diff] [blame] | 693 | 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] | 694 | { |
| 695 | int res; |
| 696 | struct utimbuf buf; |
| 697 | buf.actime = attr->atime; |
| 698 | buf.modtime = attr->mtime; |
| 699 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 700 | if (f->op.utime) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 701 | res = f->op.utime(path, &buf); |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 702 | |
| 703 | return res; |
| 704 | } |
| 705 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 706 | static void do_setattr(struct fuse *f, struct fuse_in_header *in, |
| 707 | struct fuse_setattr_in *arg) |
| 708 | { |
| 709 | int res; |
| 710 | char *path; |
| 711 | int valid = arg->valid; |
| 712 | struct fuse_attr *attr = &arg->attr; |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 713 | struct fuse_attr_out outarg; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 714 | |
| 715 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 716 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 717 | if (path != NULL) { |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 718 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 719 | if (f->op.getattr) { |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 720 | res = 0; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 721 | if (!res && (valid & FATTR_MODE)) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 722 | res = do_chmod(f, path, attr); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 723 | if (!res && (valid & (FATTR_UID | FATTR_GID))) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 724 | res = do_chown(f, path, attr, valid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 725 | if (!res && (valid & FATTR_SIZE)) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 726 | res = do_truncate(f, path, attr); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 727 | if (!res && (valid & (FATTR_ATIME | FATTR_MTIME)) == |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 728 | (FATTR_ATIME | FATTR_MTIME)) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 729 | res = do_utime(f, path, attr); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 730 | if (!res) { |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 731 | struct stat buf; |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 732 | res = f->op.getattr(path, &buf); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 733 | if (!res) { |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 734 | memset(&outarg, 0, sizeof(struct fuse_attr_out)); |
| 735 | outarg.attr_valid = ATTR_REVALIDATE_TIME; |
| 736 | outarg.attr_valid_nsec = 0; |
Miklos Szeredi | f3ea83b | 2001-11-07 14:55:16 +0000 | [diff] [blame] | 737 | convert_stat(&buf, &outarg.attr); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 738 | if (!(f->flags & FUSE_USE_INO)) |
| 739 | outarg.attr.ino = in->nodeid; |
| 740 | else { |
| 741 | struct node *node = get_node(f, in->nodeid); |
| 742 | node->ino = outarg.attr.ino; |
| 743 | } |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 744 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 745 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 746 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 747 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 748 | } |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 749 | send_reply(f, in, res, &outarg, sizeof(outarg)); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 750 | } |
| 751 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 752 | static void do_readlink(struct fuse *f, struct fuse_in_header *in) |
| 753 | { |
| 754 | int res; |
| 755 | char link[PATH_MAX + 1]; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 756 | char *path; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 757 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 758 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 759 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 760 | if (path != NULL) { |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 761 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 762 | if (f->op.readlink) |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 763 | res = f->op.readlink(path, link, sizeof(link)); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 764 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 765 | } |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 766 | link[PATH_MAX] = '\0'; |
Miklos Szeredi | 4b2bef4 | 2002-01-09 12:23:27 +0000 | [diff] [blame] | 767 | send_reply(f, in, res, link, res == 0 ? strlen(link) : 0); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 768 | } |
| 769 | |
| 770 | static void do_getdir(struct fuse *f, struct fuse_in_header *in) |
| 771 | { |
| 772 | int res; |
| 773 | struct fuse_getdir_out arg; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 774 | struct fuse_dirhandle dh; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 775 | char *path; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 776 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 777 | dh.fuse = f; |
| 778 | dh.fp = tmpfile(); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 779 | dh.dir = in->nodeid; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 780 | |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 781 | res = -EIO; |
| 782 | if (dh.fp == NULL) |
| 783 | perror("fuse: failed to create temporary file"); |
| 784 | else { |
| 785 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 786 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 787 | if (path != NULL) { |
| 788 | res = -ENOSYS; |
| 789 | if (f->op.getdir) |
Miklos Szeredi | 8fb48fe | 2004-11-08 14:48:52 +0000 | [diff] [blame] | 790 | res = f->op.getdir(path, &dh, fill_dir); |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 791 | free(path); |
| 792 | } |
| 793 | fflush(dh.fp); |
| 794 | } |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 795 | memset(&arg, 0, sizeof(struct fuse_getdir_out)); |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 796 | if (res == 0) |
| 797 | arg.fd = fileno(dh.fp); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 798 | send_reply(f, in, res, &arg, sizeof(arg)); |
Miklos Szeredi | 65afea1 | 2004-09-14 07:13:45 +0000 | [diff] [blame] | 799 | if (dh.fp != NULL) |
| 800 | fclose(dh.fp); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 801 | } |
| 802 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 803 | static void do_mknod(struct fuse *f, struct fuse_in_header *in, |
| 804 | struct fuse_mknod_in *inarg) |
| 805 | { |
| 806 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 807 | int res2; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 808 | char *path; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 809 | char *name = PARAM(inarg); |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 810 | struct fuse_entry_out outarg; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 811 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 812 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 813 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 814 | if (path != NULL) { |
| 815 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 816 | printf("MKNOD %s\n", path); |
| 817 | fflush(stdout); |
| 818 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 819 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 820 | if (f->op.mknod && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 821 | res = f->op.mknod(path, inarg->mode, inarg->rdev); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 822 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 823 | res = lookup_path(f, in->nodeid, in->unique, name, path, &outarg); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 824 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 825 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 826 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 827 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 828 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 829 | destroy_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 830 | } |
| 831 | |
| 832 | static void do_mkdir(struct fuse *f, struct fuse_in_header *in, |
| 833 | struct fuse_mkdir_in *inarg) |
| 834 | { |
| 835 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 836 | int res2; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 837 | char *path; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 838 | char *name = PARAM(inarg); |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 839 | struct fuse_entry_out outarg; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 840 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 841 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 842 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 843 | if (path != NULL) { |
| 844 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 845 | printf("MKDIR %s\n", path); |
| 846 | fflush(stdout); |
| 847 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 848 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 849 | if (f->op.mkdir && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 850 | res = f->op.mkdir(path, inarg->mode); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 851 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 852 | res = lookup_path(f, in->nodeid, in->unique, name, path, &outarg); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 853 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 854 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 855 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 856 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 857 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 858 | destroy_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 859 | } |
| 860 | |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 861 | 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] | 862 | { |
| 863 | int res; |
| 864 | char *path; |
| 865 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 866 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 867 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 868 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 869 | if (f->flags & FUSE_DEBUG) { |
| 870 | printf("UNLINK %s\n", path); |
| 871 | fflush(stdout); |
| 872 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 873 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 874 | if (f->op.unlink) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 875 | if (!(f->flags & FUSE_HARD_REMOVE) && is_open(f, in->nodeid, name)) |
| 876 | res = hide_node(f, path, in->nodeid, name); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 877 | else { |
| 878 | res = f->op.unlink(path); |
| 879 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 880 | remove_node(f, in->nodeid, name); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 881 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 882 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 883 | free(path); |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 884 | } |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 885 | send_reply(f, in, res, NULL, 0); |
| 886 | } |
| 887 | |
| 888 | static void do_rmdir(struct fuse *f, struct fuse_in_header *in, char *name) |
| 889 | { |
| 890 | int res; |
| 891 | char *path; |
| 892 | |
| 893 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 894 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 895 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 896 | if (f->flags & FUSE_DEBUG) { |
| 897 | printf("RMDIR %s\n", path); |
| 898 | fflush(stdout); |
| 899 | } |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 900 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 901 | if (f->op.rmdir) { |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 902 | res = f->op.rmdir(path); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 903 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 904 | remove_node(f, in->nodeid, name); |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 905 | } |
| 906 | free(path); |
| 907 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 908 | send_reply(f, in, res, NULL, 0); |
| 909 | } |
| 910 | |
| 911 | static void do_symlink(struct fuse *f, struct fuse_in_header *in, char *name, |
| 912 | char *link) |
| 913 | { |
| 914 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 915 | int res2; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 916 | char *path; |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 917 | struct fuse_entry_out outarg; |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 918 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 919 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 920 | path = get_path_name(f, in->nodeid, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 921 | if (path != NULL) { |
| 922 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 923 | printf("SYMLINK %s\n", path); |
| 924 | fflush(stdout); |
| 925 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 926 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 927 | if (f->op.symlink && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 928 | res = f->op.symlink(link, path); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 929 | if (res == 0) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 930 | res = lookup_path(f, in->nodeid, in->unique, name, path, &outarg); |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 931 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 932 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 933 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 934 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 935 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 936 | destroy_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 937 | |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 938 | } |
| 939 | |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 940 | static void do_rename(struct fuse *f, struct fuse_in_header *in, |
| 941 | struct fuse_rename_in *inarg) |
| 942 | { |
| 943 | int res; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 944 | nodeid_t olddir = in->nodeid; |
| 945 | nodeid_t newdir = inarg->newdir; |
Miklos Szeredi | 6bf8b68 | 2002-10-28 08:49:39 +0000 | [diff] [blame] | 946 | char *oldname = PARAM(inarg); |
| 947 | char *newname = oldname + strlen(oldname) + 1; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 948 | char *oldpath; |
| 949 | char *newpath; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 950 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 951 | res = -ENOENT; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 952 | oldpath = get_path_name(f, olddir, oldname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 953 | if (oldpath != NULL) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 954 | newpath = get_path_name(f, newdir, newname); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 955 | if (newpath != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 956 | if (f->flags & FUSE_DEBUG) { |
| 957 | printf("RENAME %s -> %s\n", oldpath, newpath); |
| 958 | fflush(stdout); |
| 959 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 960 | res = -ENOSYS; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 961 | if (f->op.rename) { |
| 962 | res = 0; |
Miklos Szeredi | 2529ca2 | 2004-07-13 15:36:52 +0000 | [diff] [blame] | 963 | if (!(f->flags & FUSE_HARD_REMOVE) && |
| 964 | is_open(f, newdir, newname)) |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 965 | res = hide_node(f, newpath, newdir, newname); |
| 966 | if (res == 0) { |
| 967 | res = f->op.rename(oldpath, newpath); |
| 968 | if (res == 0) |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 969 | res = rename_node(f, olddir, oldname, newdir, newname, 0); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 970 | } |
| 971 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 972 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 973 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 974 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 975 | } |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 976 | send_reply(f, in, res, NULL, 0); |
| 977 | } |
| 978 | |
| 979 | static void do_link(struct fuse *f, struct fuse_in_header *in, |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 980 | struct fuse_link_in *arg) |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 981 | { |
| 982 | int res; |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 983 | int res2; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 984 | char *oldpath; |
| 985 | char *newpath; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 986 | char *name = PARAM(arg); |
Miklos Szeredi | 254d5ed | 2004-03-02 11:11:24 +0000 | [diff] [blame] | 987 | struct fuse_entry_out outarg; |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 988 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 989 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 990 | oldpath = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 991 | if (oldpath != NULL) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 992 | newpath = get_path_name(f, arg->newdir, name); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 993 | if (newpath != NULL) { |
| 994 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 995 | printf("LINK %s\n", newpath); |
| 996 | fflush(stdout); |
| 997 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 998 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 999 | if (f->op.link && f->op.getattr) { |
Miklos Szeredi | 0a7077f | 2001-11-11 18:20:17 +0000 | [diff] [blame] | 1000 | res = f->op.link(oldpath, newpath); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1001 | if (res == 0) |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1002 | res = lookup_path(f, arg->newdir, in->unique, name, |
| 1003 | newpath, &outarg); |
| 1004 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1005 | free(newpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1006 | } |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1007 | free(oldpath); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1008 | } |
Miklos Szeredi | 2778f6c | 2004-06-21 09:45:30 +0000 | [diff] [blame] | 1009 | res2 = send_reply(f, in, res, &outarg, sizeof(outarg)); |
| 1010 | if (res == 0 && res2 == -ENOENT) |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1011 | destroy_node(f, outarg.nodeid, in->unique); |
Miklos Szeredi | 19dff1b | 2001-10-30 15:06:52 +0000 | [diff] [blame] | 1012 | } |
| 1013 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1014 | static void do_open(struct fuse *f, struct fuse_in_header *in, |
| 1015 | struct fuse_open_in *arg) |
| 1016 | { |
| 1017 | int res; |
| 1018 | char *path; |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1019 | struct fuse_open_out outarg; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1020 | struct fuse_file_info fi; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1021 | |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1022 | memset(&fi, 0, sizeof(fi)); |
| 1023 | fi.flags = arg->flags; |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1024 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1025 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1026 | if (path != NULL) { |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1027 | res = -ENOSYS; |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1028 | if (f->op.open.curr) { |
| 1029 | if (!f->compat) |
| 1030 | res = f->op.open.curr(path, &fi); |
| 1031 | else |
| 1032 | res = f->op.open.compat2(path, fi.flags); |
| 1033 | } |
Miklos Szeredi | 40b9a5a | 2002-12-10 16:09:02 +0000 | [diff] [blame] | 1034 | } |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1035 | if (res == 0) { |
| 1036 | int res2; |
| 1037 | |
| 1038 | /* If the request is interrupted the lock must be held until |
| 1039 | the cancellation is finished. Otherwise there could be |
| 1040 | races with rename/unlink, against which the kernel can't |
| 1041 | protect */ |
| 1042 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1043 | outarg.fh = fi.fh; |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1044 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 1eea032 | 2004-09-27 18:50:11 +0000 | [diff] [blame] | 1045 | printf("OPEN[%lu] flags: 0x%x\n", outarg.fh, arg->flags); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1046 | fflush(stdout); |
| 1047 | } |
| 1048 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1049 | res2 = send_reply_locked(f, in, res, &outarg, sizeof(outarg)); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1050 | if(res2 == -ENOENT) { |
| 1051 | /* The open syscall was interrupted, so it must be cancelled */ |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1052 | if(f->op.release.curr) { |
| 1053 | if (!f->compat) |
| 1054 | f->op.release.curr(path, &fi); |
| 1055 | else |
| 1056 | f->op.release.compat2(path, fi.flags); |
| 1057 | } |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1058 | } else |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1059 | get_node(f, in->nodeid)->open_count ++; |
Miklos Szeredi | 73798f9 | 2004-07-12 15:55:11 +0000 | [diff] [blame] | 1060 | pthread_mutex_unlock(&f->lock); |
| 1061 | |
| 1062 | } else |
| 1063 | send_reply(f, in, res, NULL, 0); |
| 1064 | |
Miklos Szeredi | 9a31cca | 2004-06-26 21:11:25 +0000 | [diff] [blame] | 1065 | if (path) |
| 1066 | free(path); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1067 | } |
| 1068 | |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1069 | static void do_flush(struct fuse *f, struct fuse_in_header *in, |
| 1070 | struct fuse_flush_in *arg) |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1071 | { |
| 1072 | char *path; |
| 1073 | int res; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1074 | struct fuse_file_info fi; |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1075 | |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1076 | memset(&fi, 0, sizeof(fi)); |
| 1077 | fi.fh = arg->fh; |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1078 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1079 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1080 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1081 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 1eea032 | 2004-09-27 18:50:11 +0000 | [diff] [blame] | 1082 | printf("FLUSH[%lu]\n", arg->fh); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1083 | fflush(stdout); |
| 1084 | } |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1085 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1086 | if (f->op.flush) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1087 | res = f->op.flush(path, &fi); |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1088 | free(path); |
| 1089 | } |
| 1090 | send_reply(f, in, res, NULL, 0); |
| 1091 | } |
| 1092 | |
Miklos Szeredi | 9478e86 | 2002-12-11 09:50:26 +0000 | [diff] [blame] | 1093 | static void do_release(struct fuse *f, struct fuse_in_header *in, |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1094 | struct fuse_release_in *arg) |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1095 | { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1096 | struct node *node; |
| 1097 | char *path; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1098 | struct fuse_file_info fi; |
| 1099 | |
| 1100 | memset(&fi, 0, sizeof(fi)); |
| 1101 | fi.flags = arg->flags; |
| 1102 | fi.fh = arg->fh; |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1103 | |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1104 | pthread_mutex_lock(&f->lock); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1105 | node = get_node(f, in->nodeid); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1106 | --node->open_count; |
| 1107 | pthread_mutex_unlock(&f->lock); |
| 1108 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1109 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1110 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1111 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 1eea032 | 2004-09-27 18:50:11 +0000 | [diff] [blame] | 1112 | printf("RELEASE[%lu]\n", arg->fh); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1113 | fflush(stdout); |
| 1114 | } |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1115 | if (f->op.release.curr) { |
| 1116 | if (!f->compat) |
| 1117 | f->op.release.curr(path, &fi); |
| 1118 | else |
| 1119 | f->op.release.compat2(path, fi.flags); |
| 1120 | } |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1121 | |
| 1122 | if(node->is_hidden && node->open_count == 0) |
| 1123 | /* can now clean up this hidden file */ |
| 1124 | f->op.unlink(path); |
| 1125 | |
| 1126 | free(path); |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1127 | } |
Miklos Szeredi | 556d03d | 2004-06-30 11:13:41 +0000 | [diff] [blame] | 1128 | send_reply(f, in, 0, NULL, 0); |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1129 | } |
| 1130 | |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1131 | static void do_read(struct fuse *f, struct fuse_in_header *in, |
| 1132 | struct fuse_read_in *arg) |
| 1133 | { |
| 1134 | int res; |
| 1135 | char *path; |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1136 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + arg->size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1137 | if (outbuf == NULL) |
| 1138 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1139 | else { |
| 1140 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1141 | char *buf = outbuf + sizeof(struct fuse_out_header); |
| 1142 | size_t size; |
| 1143 | size_t outsize; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1144 | struct fuse_file_info fi; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1145 | |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1146 | memset(&fi, 0, sizeof(fi)); |
| 1147 | fi.fh = arg->fh; |
| 1148 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1149 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1150 | path = get_path(f, in->nodeid); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1151 | if (path != NULL) { |
| 1152 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 1eea032 | 2004-09-27 18:50:11 +0000 | [diff] [blame] | 1153 | printf("READ[%lu] %u bytes from %llu\n", arg->fh, arg->size, |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1154 | arg->offset); |
| 1155 | fflush(stdout); |
| 1156 | } |
| 1157 | |
| 1158 | res = -ENOSYS; |
| 1159 | if (f->op.read) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1160 | res = f->op.read(path, buf, arg->size, arg->offset, &fi); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1161 | free(path); |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1162 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1163 | |
| 1164 | size = 0; |
| 1165 | if (res >= 0) { |
| 1166 | size = res; |
| 1167 | res = 0; |
| 1168 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 1eea032 | 2004-09-27 18:50:11 +0000 | [diff] [blame] | 1169 | printf(" READ[%lu] %u bytes\n", arg->fh, size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1170 | fflush(stdout); |
| 1171 | } |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1172 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1173 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1174 | out->unique = in->unique; |
| 1175 | out->error = res; |
| 1176 | outsize = sizeof(struct fuse_out_header) + size; |
| 1177 | |
| 1178 | send_reply_raw(f, outbuf, outsize, 0); |
| 1179 | free(outbuf); |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1180 | } |
Miklos Szeredi | 5e18348 | 2001-10-31 14:52:35 +0000 | [diff] [blame] | 1181 | } |
Miklos Szeredi | b483c93 | 2001-10-29 14:57:57 +0000 | [diff] [blame] | 1182 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1183 | static void do_write(struct fuse *f, struct fuse_in_header *in, |
| 1184 | struct fuse_write_in *arg) |
| 1185 | { |
| 1186 | int res; |
| 1187 | char *path; |
Miklos Szeredi | ad051c3 | 2004-07-02 09:22:50 +0000 | [diff] [blame] | 1188 | struct fuse_write_out outarg; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1189 | struct fuse_file_info fi; |
| 1190 | |
| 1191 | memset(&fi, 0, sizeof(fi)); |
| 1192 | fi.fh = arg->fh; |
Miklos Szeredi | d59bb9d | 2004-12-07 10:04:24 +0000 | [diff] [blame] | 1193 | fi.writepage = arg->writepage; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1194 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1195 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1196 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1197 | if (path != NULL) { |
| 1198 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 1eea032 | 2004-09-27 18:50:11 +0000 | [diff] [blame] | 1199 | printf("WRITE%s[%lu] %u bytes to %llu\n", |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1200 | arg->writepage ? "PAGE" : "", arg->fh, arg->size, |
| 1201 | arg->offset); |
Miklos Szeredi | 6ebe234 | 2002-01-06 21:44:16 +0000 | [diff] [blame] | 1202 | fflush(stdout); |
| 1203 | } |
| 1204 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1205 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1206 | if (f->op.write) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1207 | res = f->op.write(path, PARAM(arg), arg->size, arg->offset, &fi); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1208 | free(path); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1209 | } |
| 1210 | |
Miklos Szeredi | ad051c3 | 2004-07-02 09:22:50 +0000 | [diff] [blame] | 1211 | if (res >= 0) { |
| 1212 | outarg.size = res; |
| 1213 | res = 0; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1214 | } |
| 1215 | |
Miklos Szeredi | ad051c3 | 2004-07-02 09:22:50 +0000 | [diff] [blame] | 1216 | send_reply(f, in, res, &outarg, sizeof(outarg)); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1217 | } |
| 1218 | |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1219 | static int default_statfs(struct statfs *buf) |
| 1220 | { |
| 1221 | buf->f_namelen = 255; |
| 1222 | buf->f_bsize = 512; |
| 1223 | return 0; |
| 1224 | } |
| 1225 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1226 | static void convert_statfs_compat(struct fuse_statfs_compat1 *compatbuf, |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1227 | struct statfs *statfs) |
| 1228 | { |
| 1229 | statfs->f_bsize = compatbuf->block_size; |
| 1230 | statfs->f_blocks = compatbuf->blocks; |
| 1231 | statfs->f_bfree = compatbuf->blocks_free; |
| 1232 | statfs->f_bavail = compatbuf->blocks_free; |
| 1233 | statfs->f_files = compatbuf->files; |
| 1234 | statfs->f_ffree = compatbuf->files_free; |
| 1235 | statfs->f_namelen = compatbuf->namelen; |
| 1236 | } |
| 1237 | |
Miklos Szeredi | 18e75e4 | 2004-02-19 14:23:27 +0000 | [diff] [blame] | 1238 | static void convert_statfs(struct statfs *statfs, struct fuse_kstatfs *kstatfs) |
| 1239 | { |
| 1240 | kstatfs->bsize = statfs->f_bsize; |
| 1241 | kstatfs->blocks = statfs->f_blocks; |
| 1242 | kstatfs->bfree = statfs->f_bfree; |
| 1243 | kstatfs->bavail = statfs->f_bavail; |
| 1244 | kstatfs->files = statfs->f_files; |
| 1245 | kstatfs->ffree = statfs->f_ffree; |
| 1246 | kstatfs->namelen = statfs->f_namelen; |
| 1247 | } |
| 1248 | |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1249 | static void do_statfs(struct fuse *f, struct fuse_in_header *in) |
| 1250 | { |
| 1251 | int res; |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1252 | struct fuse_statfs_out arg; |
Miklos Szeredi | 18e75e4 | 2004-02-19 14:23:27 +0000 | [diff] [blame] | 1253 | struct statfs buf; |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1254 | |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1255 | memset(&buf, 0, sizeof(struct statfs)); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1256 | if (f->op.statfs.curr) { |
| 1257 | if (!f->compat || f->compat > 11) |
| 1258 | res = f->op.statfs.curr("/", &buf); |
| 1259 | else { |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1260 | struct fuse_statfs_compat1 compatbuf; |
| 1261 | memset(&compatbuf, 0, sizeof(struct fuse_statfs_compat1)); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1262 | res = f->op.statfs.compat1(&compatbuf); |
| 1263 | if (res == 0) |
| 1264 | convert_statfs_compat(&compatbuf, &buf); |
| 1265 | } |
| 1266 | } |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1267 | else |
| 1268 | res = default_statfs(&buf); |
| 1269 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1270 | if (res == 0) |
Miklos Szeredi | 77f3994 | 2004-03-25 11:17:52 +0000 | [diff] [blame] | 1271 | convert_statfs(&buf, &arg.st); |
Miklos Szeredi | 4b2bef4 | 2002-01-09 12:23:27 +0000 | [diff] [blame] | 1272 | |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1273 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 1274 | } |
| 1275 | |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1276 | static void do_fsync(struct fuse *f, struct fuse_in_header *in, |
| 1277 | struct fuse_fsync_in *inarg) |
| 1278 | { |
| 1279 | int res; |
| 1280 | char *path; |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1281 | struct fuse_file_info fi; |
| 1282 | |
| 1283 | memset(&fi, 0, sizeof(fi)); |
| 1284 | fi.fh = inarg->fh; |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1285 | |
| 1286 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1287 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1288 | if (path != NULL) { |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1289 | if (f->flags & FUSE_DEBUG) { |
Miklos Szeredi | 1eea032 | 2004-09-27 18:50:11 +0000 | [diff] [blame] | 1290 | printf("FSYNC[%lu]\n", inarg->fh); |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1291 | fflush(stdout); |
| 1292 | } |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1293 | res = -ENOSYS; |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1294 | if (f->op.fsync) |
Miklos Szeredi | fb28c5e | 2004-11-26 12:15:06 +0000 | [diff] [blame] | 1295 | res = f->op.fsync(path, inarg->datasync, &fi); |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1296 | free(path); |
| 1297 | } |
| 1298 | send_reply(f, in, res, NULL, 0); |
| 1299 | } |
| 1300 | |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1301 | static void do_setxattr(struct fuse *f, struct fuse_in_header *in, |
| 1302 | struct fuse_setxattr_in *arg) |
| 1303 | { |
| 1304 | int res; |
| 1305 | char *path; |
| 1306 | char *name = PARAM(arg); |
| 1307 | unsigned char *value = name + strlen(name) + 1; |
| 1308 | |
| 1309 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1310 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1311 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1312 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1313 | if (f->op.setxattr) |
| 1314 | res = f->op.setxattr(path, name, value, arg->size, arg->flags); |
| 1315 | free(path); |
| 1316 | } |
| 1317 | send_reply(f, in, res, NULL, 0); |
| 1318 | } |
| 1319 | |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1320 | static int common_getxattr(struct fuse *f, struct fuse_in_header *in, |
| 1321 | const char *name, char *value, size_t size) |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1322 | { |
| 1323 | int res; |
| 1324 | char *path; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1325 | |
| 1326 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1327 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1328 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1329 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1330 | if (f->op.getxattr) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1331 | res = f->op.getxattr(path, name, value, size); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1332 | free(path); |
| 1333 | } |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1334 | return res; |
| 1335 | } |
| 1336 | |
| 1337 | static void do_getxattr_read(struct fuse *f, struct fuse_in_header *in, |
| 1338 | const char *name, size_t size) |
| 1339 | { |
| 1340 | int res; |
| 1341 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1342 | if (outbuf == NULL) |
| 1343 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1344 | else { |
| 1345 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1346 | char *value = outbuf + sizeof(struct fuse_out_header); |
| 1347 | |
| 1348 | res = common_getxattr(f, in, name, value, size); |
| 1349 | size = 0; |
| 1350 | if (res > 0) { |
| 1351 | size = res; |
| 1352 | res = 0; |
| 1353 | } |
| 1354 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1355 | out->unique = in->unique; |
| 1356 | out->error = res; |
| 1357 | |
| 1358 | send_reply_raw(f, outbuf, sizeof(struct fuse_out_header) + size, 0); |
| 1359 | free(outbuf); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1360 | } |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1361 | } |
| 1362 | |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1363 | static void do_getxattr_size(struct fuse *f, struct fuse_in_header *in, |
| 1364 | const char *name) |
| 1365 | { |
| 1366 | int res; |
| 1367 | struct fuse_getxattr_out arg; |
| 1368 | |
| 1369 | res = common_getxattr(f, in, name, NULL, 0); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1370 | if (res >= 0) { |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1371 | arg.size = res; |
| 1372 | res = 0; |
| 1373 | } |
| 1374 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 1375 | } |
| 1376 | |
| 1377 | static void do_getxattr(struct fuse *f, struct fuse_in_header *in, |
| 1378 | struct fuse_getxattr_in *arg) |
| 1379 | { |
| 1380 | char *name = PARAM(arg); |
| 1381 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1382 | if (arg->size) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1383 | do_getxattr_read(f, in, name, arg->size); |
| 1384 | else |
| 1385 | do_getxattr_size(f, in, name); |
| 1386 | } |
| 1387 | |
| 1388 | static int common_listxattr(struct fuse *f, struct fuse_in_header *in, |
| 1389 | char *list, size_t size) |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1390 | { |
| 1391 | int res; |
| 1392 | char *path; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1393 | |
| 1394 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1395 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1396 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1397 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1398 | if (f->op.listxattr) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1399 | res = f->op.listxattr(path, list, size); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1400 | free(path); |
| 1401 | } |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1402 | return res; |
| 1403 | } |
| 1404 | |
| 1405 | static void do_listxattr_read(struct fuse *f, struct fuse_in_header *in, |
| 1406 | size_t size) |
| 1407 | { |
| 1408 | int res; |
| 1409 | char *outbuf = (char *) malloc(sizeof(struct fuse_out_header) + size); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1410 | if (outbuf == NULL) |
| 1411 | send_reply(f, in, -ENOMEM, NULL, 0); |
| 1412 | else { |
| 1413 | struct fuse_out_header *out = (struct fuse_out_header *) outbuf; |
| 1414 | char *list = outbuf + sizeof(struct fuse_out_header); |
| 1415 | |
| 1416 | res = common_listxattr(f, in, list, size); |
| 1417 | size = 0; |
| 1418 | if (res > 0) { |
| 1419 | size = res; |
| 1420 | res = 0; |
| 1421 | } |
| 1422 | memset(out, 0, sizeof(struct fuse_out_header)); |
| 1423 | out->unique = in->unique; |
| 1424 | out->error = res; |
| 1425 | |
| 1426 | send_reply_raw(f, outbuf, sizeof(struct fuse_out_header) + size, 0); |
| 1427 | free(outbuf); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1428 | } |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1429 | } |
| 1430 | |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1431 | static void do_listxattr_size(struct fuse *f, struct fuse_in_header *in) |
| 1432 | { |
| 1433 | int res; |
| 1434 | struct fuse_getxattr_out arg; |
| 1435 | |
| 1436 | res = common_listxattr(f, in, NULL, 0); |
| 1437 | if (res >= 0) { |
| 1438 | arg.size = res; |
| 1439 | res = 0; |
| 1440 | } |
| 1441 | send_reply(f, in, res, &arg, sizeof(arg)); |
| 1442 | } |
| 1443 | |
| 1444 | static void do_listxattr(struct fuse *f, struct fuse_in_header *in, |
| 1445 | struct fuse_getxattr_in *arg) |
| 1446 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1447 | if (arg->size) |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1448 | do_listxattr_read(f, in, arg->size); |
| 1449 | else |
| 1450 | do_listxattr_size(f, in); |
| 1451 | } |
| 1452 | |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1453 | static void do_removexattr(struct fuse *f, struct fuse_in_header *in, |
| 1454 | char *name) |
| 1455 | { |
| 1456 | int res; |
| 1457 | char *path; |
| 1458 | |
| 1459 | res = -ENOENT; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1460 | path = get_path(f, in->nodeid); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1461 | if (path != NULL) { |
Miklos Szeredi | 63b8c1c | 2004-06-03 14:45:04 +0000 | [diff] [blame] | 1462 | res = -ENOSYS; |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1463 | if (f->op.removexattr) |
| 1464 | res = f->op.removexattr(path, name); |
| 1465 | free(path); |
| 1466 | } |
| 1467 | send_reply(f, in, res, NULL, 0); |
| 1468 | } |
| 1469 | |
| 1470 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1471 | static void free_cmd(struct fuse_cmd *cmd) |
| 1472 | { |
| 1473 | free(cmd->buf); |
| 1474 | free(cmd); |
| 1475 | } |
| 1476 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1477 | void fuse_process_cmd(struct fuse *f, struct fuse_cmd *cmd) |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1478 | { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1479 | struct fuse_in_header *in = (struct fuse_in_header *) cmd->buf; |
| 1480 | void *inarg = cmd->buf + sizeof(struct fuse_in_header); |
| 1481 | size_t argsize; |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1482 | struct fuse_context *ctx = fuse_get_context(); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1483 | |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1484 | dec_avail(f); |
Miklos Szeredi | 3323203 | 2001-11-19 17:55:51 +0000 | [diff] [blame] | 1485 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1486 | if ((f->flags & FUSE_DEBUG)) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1487 | printf("unique: %i, opcode: %s (%i), nodeid: %li, insize: %i\n", |
| 1488 | in->unique, opname(in->opcode), in->opcode, in->nodeid, |
Miklos Szeredi | c8ba237 | 2002-12-10 12:26:00 +0000 | [diff] [blame] | 1489 | cmd->buflen); |
Miklos Szeredi | c0938ea | 2001-11-07 12:35:06 +0000 | [diff] [blame] | 1490 | fflush(stdout); |
| 1491 | } |
Miklos Szeredi | fe25def | 2001-12-20 15:38:05 +0000 | [diff] [blame] | 1492 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1493 | ctx->fuse = f; |
Miklos Szeredi | fe25def | 2001-12-20 15:38:05 +0000 | [diff] [blame] | 1494 | ctx->uid = in->uid; |
| 1495 | ctx->gid = in->gid; |
Miklos Szeredi | 1f18db5 | 2004-09-27 06:54:49 +0000 | [diff] [blame] | 1496 | ctx->pid = in->pid; |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1497 | |
| 1498 | argsize = cmd->buflen - sizeof(struct fuse_in_header); |
| 1499 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1500 | switch (in->opcode) { |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1501 | case FUSE_LOOKUP: |
| 1502 | do_lookup(f, in, (char *) inarg); |
| 1503 | break; |
| 1504 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1505 | case FUSE_GETATTR: |
| 1506 | do_getattr(f, in); |
| 1507 | break; |
| 1508 | |
| 1509 | case FUSE_SETATTR: |
| 1510 | do_setattr(f, in, (struct fuse_setattr_in *) inarg); |
| 1511 | break; |
| 1512 | |
| 1513 | case FUSE_READLINK: |
| 1514 | do_readlink(f, in); |
| 1515 | break; |
| 1516 | |
| 1517 | case FUSE_GETDIR: |
| 1518 | do_getdir(f, in); |
| 1519 | break; |
| 1520 | |
| 1521 | case FUSE_MKNOD: |
| 1522 | do_mknod(f, in, (struct fuse_mknod_in *) inarg); |
| 1523 | break; |
| 1524 | |
| 1525 | case FUSE_MKDIR: |
| 1526 | do_mkdir(f, in, (struct fuse_mkdir_in *) inarg); |
| 1527 | break; |
| 1528 | |
| 1529 | case FUSE_UNLINK: |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 1530 | do_unlink(f, in, (char *) inarg); |
| 1531 | break; |
| 1532 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1533 | case FUSE_RMDIR: |
Miklos Szeredi | b595861 | 2004-02-20 14:10:49 +0000 | [diff] [blame] | 1534 | do_rmdir(f, in, (char *) inarg); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1535 | break; |
| 1536 | |
| 1537 | case FUSE_SYMLINK: |
| 1538 | do_symlink(f, in, (char *) inarg, |
| 1539 | ((char *) inarg) + strlen((char *) inarg) + 1); |
| 1540 | break; |
| 1541 | |
| 1542 | case FUSE_RENAME: |
| 1543 | do_rename(f, in, (struct fuse_rename_in *) inarg); |
| 1544 | break; |
| 1545 | |
| 1546 | case FUSE_LINK: |
| 1547 | do_link(f, in, (struct fuse_link_in *) inarg); |
| 1548 | break; |
| 1549 | |
| 1550 | case FUSE_OPEN: |
| 1551 | do_open(f, in, (struct fuse_open_in *) inarg); |
| 1552 | break; |
| 1553 | |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1554 | case FUSE_FLUSH: |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1555 | do_flush(f, in, (struct fuse_flush_in *) inarg); |
Miklos Szeredi | e2e4ac2 | 2004-05-18 08:45:28 +0000 | [diff] [blame] | 1556 | break; |
| 1557 | |
Miklos Szeredi | 9478e86 | 2002-12-11 09:50:26 +0000 | [diff] [blame] | 1558 | case FUSE_RELEASE: |
Miklos Szeredi | 209f5d0 | 2004-07-24 19:56:16 +0000 | [diff] [blame] | 1559 | do_release(f, in, (struct fuse_release_in *) inarg); |
Miklos Szeredi | 9478e86 | 2002-12-11 09:50:26 +0000 | [diff] [blame] | 1560 | break; |
| 1561 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1562 | case FUSE_READ: |
| 1563 | do_read(f, in, (struct fuse_read_in *) inarg); |
| 1564 | break; |
| 1565 | |
| 1566 | case FUSE_WRITE: |
| 1567 | do_write(f, in, (struct fuse_write_in *) inarg); |
| 1568 | break; |
| 1569 | |
Mark Glines | d84b39a | 2002-01-07 16:32:02 +0000 | [diff] [blame] | 1570 | case FUSE_STATFS: |
| 1571 | do_statfs(f, in); |
| 1572 | break; |
| 1573 | |
Miklos Szeredi | 5e43f2c | 2003-12-12 14:06:41 +0000 | [diff] [blame] | 1574 | case FUSE_FSYNC: |
| 1575 | do_fsync(f, in, (struct fuse_fsync_in *) inarg); |
| 1576 | break; |
| 1577 | |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1578 | case FUSE_SETXATTR: |
| 1579 | do_setxattr(f, in, (struct fuse_setxattr_in *) inarg); |
| 1580 | break; |
| 1581 | |
| 1582 | case FUSE_GETXATTR: |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1583 | do_getxattr(f, in, (struct fuse_getxattr_in *) inarg); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1584 | break; |
| 1585 | |
| 1586 | case FUSE_LISTXATTR: |
Miklos Szeredi | 03cebae | 2004-03-31 10:19:18 +0000 | [diff] [blame] | 1587 | do_listxattr(f, in, (struct fuse_getxattr_in *) inarg); |
Miklos Szeredi | 3ed8423 | 2004-03-30 15:17:26 +0000 | [diff] [blame] | 1588 | break; |
| 1589 | |
| 1590 | case FUSE_REMOVEXATTR: |
| 1591 | do_removexattr(f, in, (char *) inarg); |
| 1592 | break; |
| 1593 | |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1594 | default: |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1595 | send_reply(f, in, -ENOSYS, NULL, 0); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1596 | } |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1597 | |
| 1598 | free_cmd(cmd); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1599 | } |
| 1600 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1601 | int fuse_exited(struct fuse* f) |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1602 | { |
| 1603 | return f->exited; |
| 1604 | } |
| 1605 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1606 | struct fuse_cmd *fuse_read_cmd(struct fuse *f) |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1607 | { |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1608 | ssize_t res; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1609 | struct fuse_cmd *cmd; |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1610 | struct fuse_in_header *in; |
| 1611 | void *inarg; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1612 | |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1613 | cmd = (struct fuse_cmd *) malloc(sizeof(struct fuse_cmd)); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1614 | if (cmd == NULL) { |
| 1615 | fprintf(stderr, "fuse: failed to allocate cmd in read\n"); |
| 1616 | return NULL; |
| 1617 | } |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1618 | cmd->buf = (char *) malloc(FUSE_MAX_IN); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1619 | if (cmd->buf == NULL) { |
| 1620 | fprintf(stderr, "fuse: failed to allocate read buffer\n"); |
| 1621 | free(cmd); |
| 1622 | return NULL; |
| 1623 | } |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1624 | in = (struct fuse_in_header *) cmd->buf; |
| 1625 | inarg = cmd->buf + sizeof(struct fuse_in_header); |
Miklos Szeredi | 4369643 | 2001-11-18 19:15:05 +0000 | [diff] [blame] | 1626 | |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1627 | res = read(f->fd, cmd->buf, FUSE_MAX_IN); |
| 1628 | if (res == -1) { |
| 1629 | free_cmd(cmd); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1630 | if (fuse_exited(f) || errno == EINTR || errno == ENOENT) |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1631 | return NULL; |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1632 | |
Miklos Szeredi | 65cf7c7 | 2004-06-30 11:34:56 +0000 | [diff] [blame] | 1633 | /* ENODEV means we got unmounted, so we silenty return failure */ |
| 1634 | if (errno != ENODEV) { |
| 1635 | /* BAD... This will happen again */ |
| 1636 | perror("fuse: reading device"); |
| 1637 | } |
| 1638 | |
| 1639 | fuse_exit(f); |
| 1640 | return NULL; |
| 1641 | } |
| 1642 | if ((size_t) res < sizeof(struct fuse_in_header)) { |
| 1643 | free_cmd(cmd); |
| 1644 | /* Cannot happen */ |
| 1645 | fprintf(stderr, "short read on fuse device\n"); |
| 1646 | fuse_exit(f); |
| 1647 | return NULL; |
| 1648 | } |
| 1649 | cmd->buflen = res; |
| 1650 | |
| 1651 | /* Forget is special, it can be done without messing with threads. */ |
| 1652 | if (in->opcode == FUSE_FORGET) { |
| 1653 | do_forget(f, in, (struct fuse_forget_in *) inarg); |
| 1654 | free_cmd(cmd); |
| 1655 | return NULL; |
| 1656 | } |
Miklos Szeredi | 99ddf0e | 2001-11-25 17:19:59 +0000 | [diff] [blame] | 1657 | |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1658 | return cmd; |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1659 | } |
| 1660 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1661 | int fuse_loop(struct fuse *f) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1662 | { |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1663 | if (f == NULL) |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1664 | return -1; |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1665 | |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1666 | while (1) { |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1667 | struct fuse_cmd *cmd; |
| 1668 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1669 | if (fuse_exited(f)) |
Miklos Szeredi | 874e3c1 | 2004-11-01 23:15:20 +0000 | [diff] [blame] | 1670 | break; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1671 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1672 | cmd = fuse_read_cmd(f); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1673 | if (cmd == NULL) |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1674 | continue; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1675 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1676 | fuse_process_cmd(f, cmd); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1677 | } |
Miklos Szeredi | 874e3c1 | 2004-11-01 23:15:20 +0000 | [diff] [blame] | 1678 | f->exited = 0; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1679 | return 0; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1680 | } |
| 1681 | |
Miklos Szeredi | 891b874 | 2004-07-29 09:27:49 +0000 | [diff] [blame] | 1682 | int fuse_invalidate(struct fuse *f, const char *path) |
| 1683 | { |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1684 | (void) f; |
| 1685 | (void) path; |
| 1686 | return -EINVAL; |
Miklos Szeredi | 891b874 | 2004-07-29 09:27:49 +0000 | [diff] [blame] | 1687 | } |
| 1688 | |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1689 | void fuse_exit(struct fuse *f) |
| 1690 | { |
| 1691 | f->exited = 1; |
| 1692 | } |
| 1693 | |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1694 | struct fuse_context *fuse_get_context() |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1695 | { |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1696 | static struct fuse_context context; |
| 1697 | if (fuse_getcontext) |
| 1698 | return fuse_getcontext(); |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1699 | else |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1700 | return &context; |
| 1701 | } |
| 1702 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1703 | void fuse_set_getcontext_func(struct fuse_context *(*func)(void)) |
Miklos Szeredi | d169f31 | 2004-09-22 08:48:26 +0000 | [diff] [blame] | 1704 | { |
| 1705 | fuse_getcontext = func; |
Miklos Szeredi | 2e50d43 | 2001-12-20 12:17:25 +0000 | [diff] [blame] | 1706 | } |
| 1707 | |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1708 | static int check_version(struct fuse *f) |
| 1709 | { |
| 1710 | int res; |
Miklos Szeredi | 162bcbb | 2004-11-29 23:43:44 +0000 | [diff] [blame] | 1711 | const char *version_file = FUSE_VERSION_FILE_NEW; |
Miklos Szeredi | f3845c4 | 2004-11-20 11:18:34 +0000 | [diff] [blame] | 1712 | FILE *vf = fopen(version_file, "r"); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1713 | if (vf == NULL) { |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1714 | version_file = FUSE_VERSION_FILE_OLD; |
Miklos Szeredi | f3845c4 | 2004-11-20 11:18:34 +0000 | [diff] [blame] | 1715 | vf = fopen(version_file, "r"); |
| 1716 | if (vf == NULL) { |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1717 | struct stat tmp; |
| 1718 | if (stat(FUSE_DEV_OLD, &tmp) != -1) { |
| 1719 | fprintf(stderr, "fuse: kernel interface too old, need >= %i.%i\n", |
| 1720 | FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION); |
| 1721 | return -1; |
| 1722 | } else { |
| 1723 | fprintf(stderr, "fuse: warning: version of kernel interface unknown\n"); |
| 1724 | return 0; |
| 1725 | } |
Miklos Szeredi | f3845c4 | 2004-11-20 11:18:34 +0000 | [diff] [blame] | 1726 | } |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1727 | } |
| 1728 | res = fscanf(vf, "%i.%i", &f->majorver, &f->minorver); |
| 1729 | fclose(vf); |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1730 | if (res != 2) { |
Miklos Szeredi | f3845c4 | 2004-11-20 11:18:34 +0000 | [diff] [blame] | 1731 | fprintf(stderr, "fuse: error reading %s\n", version_file); |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1732 | return -1; |
| 1733 | } |
Miklos Szeredi | 7eafcce | 2004-06-19 22:42:38 +0000 | [diff] [blame] | 1734 | if (f->majorver != FUSE_KERNEL_VERSION) { |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1735 | fprintf(stderr, "fuse: bad kernel interface major version: needs %i\n", |
| 1736 | FUSE_KERNEL_VERSION); |
| 1737 | return -1; |
| 1738 | } |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1739 | if (f->minorver < FUSE_KERNEL_MINOR_VERSION_NEED) { |
Miklos Szeredi | 256739a | 2004-11-20 12:22:37 +0000 | [diff] [blame] | 1740 | fprintf(stderr, "fuse: kernel interface too old: need >= %i.%i\n", |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1741 | FUSE_KERNEL_VERSION, FUSE_KERNEL_MINOR_VERSION); |
| 1742 | return -1; |
| 1743 | } |
| 1744 | |
| 1745 | return 0; |
| 1746 | } |
| 1747 | |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1748 | |
| 1749 | int fuse_is_lib_option(const char *opt) |
| 1750 | { |
| 1751 | if (strcmp(opt, "debug") == 0 || |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1752 | strcmp(opt, "hard_remove") == 0 || |
| 1753 | strcmp(opt, "use_ino") == 0) |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1754 | return 1; |
| 1755 | else |
| 1756 | return 0; |
| 1757 | } |
| 1758 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1759 | static int parse_lib_opts(struct fuse *f, const char *opts) |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1760 | { |
| 1761 | if (opts) { |
| 1762 | char *xopts = strdup(opts); |
| 1763 | char *s = xopts; |
| 1764 | char *opt; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1765 | |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1766 | if (xopts == NULL) { |
| 1767 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1768 | return -1; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1769 | } |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1770 | |
| 1771 | while((opt = strsep(&s, ","))) { |
| 1772 | if (strcmp(opt, "debug") == 0) |
| 1773 | f->flags |= FUSE_DEBUG; |
| 1774 | else if (strcmp(opt, "hard_remove") == 0) |
| 1775 | f->flags |= FUSE_HARD_REMOVE; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1776 | else if (strcmp(opt, "use_ino") == 0) |
| 1777 | f->flags |= FUSE_USE_INO; |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1778 | else |
| 1779 | fprintf(stderr, "fuse: warning: unknown option `%s'\n", opt); |
| 1780 | } |
| 1781 | free(xopts); |
| 1782 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1783 | return 0; |
Miklos Szeredi | bd7661b | 2004-07-23 17:16:29 +0000 | [diff] [blame] | 1784 | } |
| 1785 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1786 | struct fuse *fuse_new_common(int fd, const char *opts, |
| 1787 | const struct fuse_operations *op, |
| 1788 | size_t op_size, int compat) |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1789 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1790 | struct fuse *f; |
| 1791 | struct node *root; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1792 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1793 | if (sizeof(struct fuse_operations_i) < op_size) { |
| 1794 | fprintf(stderr, "fuse: warning: library too old, some operations may not not work\n"); |
| 1795 | op_size = sizeof(struct fuse_operations_i); |
| 1796 | } |
| 1797 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1798 | f = (struct fuse *) calloc(1, sizeof(struct fuse)); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1799 | if (f == NULL) { |
| 1800 | fprintf(stderr, "fuse: failed to allocate fuse object\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1801 | goto out; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1802 | } |
Miklos Szeredi | 2df1c04 | 2001-11-06 15:07:17 +0000 | [diff] [blame] | 1803 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1804 | if (check_version(f) == -1) |
| 1805 | goto out_free; |
Miklos Szeredi | c40748a | 2004-02-20 16:38:45 +0000 | [diff] [blame] | 1806 | |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1807 | if (parse_lib_opts(f, opts) == -1) |
| 1808 | goto out_free; |
| 1809 | |
Miklos Szeredi | 8cffdb9 | 2001-11-09 14:49:18 +0000 | [diff] [blame] | 1810 | f->fd = fd; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1811 | f->ctr = 0; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1812 | f->generation = 0; |
Miklos Szeredi | fff56ab | 2001-11-16 10:12:59 +0000 | [diff] [blame] | 1813 | /* FIXME: Dynamic hash table */ |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1814 | f->name_table_size = 14057; |
| 1815 | f->name_table = (struct node **) |
| 1816 | calloc(1, sizeof(struct node *) * f->name_table_size); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1817 | if (f->name_table == NULL) { |
| 1818 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1819 | goto out_free; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1820 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1821 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1822 | f->id_table_size = 14057; |
| 1823 | f->id_table = (struct node **) |
| 1824 | calloc(1, sizeof(struct node *) * f->id_table_size); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1825 | if (f->id_table == NULL) { |
| 1826 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1827 | goto out_free_name_table; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1828 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1829 | |
Miklos Szeredi | a25d4c2 | 2004-11-23 22:32:16 +0000 | [diff] [blame] | 1830 | #ifndef USE_UCLIBC |
| 1831 | pthread_mutex_init(&f->lock, NULL); |
| 1832 | #else |
| 1833 | { |
| 1834 | pthread_mutexattr_t attr; |
| 1835 | pthread_mutexattr_init(&attr); |
| 1836 | pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ADAPTIVE_NP); |
| 1837 | pthread_mutex_init(&f->lock, &attr); |
| 1838 | pthread_mutexattr_destroy(&attr); |
| 1839 | } |
| 1840 | #endif |
Miklos Szeredi | 3323203 | 2001-11-19 17:55:51 +0000 | [diff] [blame] | 1841 | f->numworker = 0; |
| 1842 | f->numavail = 0; |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1843 | memcpy(&f->op, op, op_size); |
| 1844 | f->compat = compat; |
Miklos Szeredi | 0f48a26 | 2002-12-05 14:23:01 +0000 | [diff] [blame] | 1845 | f->exited = 0; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1846 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1847 | root = (struct node *) calloc(1, sizeof(struct node)); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1848 | if (root == NULL) { |
| 1849 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1850 | goto out_free_id_table; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1851 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1852 | |
Miklos Szeredi | 8cffdb9 | 2001-11-09 14:49:18 +0000 | [diff] [blame] | 1853 | root->mode = 0; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1854 | root->rdev = 0; |
| 1855 | root->name = strdup("/"); |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1856 | if (root->name == NULL) { |
| 1857 | fprintf(stderr, "fuse: memory allocation failed\n"); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1858 | goto out_free_root; |
Miklos Szeredi | e56818b | 2004-12-12 11:45:24 +0000 | [diff] [blame^] | 1859 | } |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1860 | |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1861 | root->parent = 0; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1862 | root->nodeid = FUSE_ROOT_ID; |
Miklos Szeredi | 76f6578 | 2004-02-19 16:55:40 +0000 | [diff] [blame] | 1863 | root->generation = 0; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1864 | hash_id(f, root); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1865 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1866 | return f; |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1867 | |
| 1868 | out_free_root: |
| 1869 | free(root); |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1870 | out_free_id_table: |
| 1871 | free(f->id_table); |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1872 | out_free_name_table: |
| 1873 | free(f->name_table); |
| 1874 | out_free: |
| 1875 | free(f); |
| 1876 | out: |
Miklos Szeredi | b2cf956 | 2004-09-16 08:42:40 +0000 | [diff] [blame] | 1877 | return NULL; |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1878 | } |
| 1879 | |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1880 | struct fuse *fuse_new(int fd, const char *opts, |
| 1881 | const struct fuse_operations *op, size_t op_size) |
| 1882 | { |
| 1883 | return fuse_new_common(fd, opts, op, op_size, 0); |
| 1884 | } |
| 1885 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1886 | struct fuse *fuse_new_compat2(int fd, const char *opts, |
| 1887 | const struct fuse_operations_compat2 *op) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1888 | { |
| 1889 | return fuse_new_common(fd, opts, (struct fuse_operations *) op, |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1890 | sizeof(struct fuse_operations_compat2), 21); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1891 | } |
| 1892 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1893 | struct fuse *fuse_new_compat1(int fd, int flags, |
| 1894 | const struct fuse_operations_compat1 *op) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1895 | { |
| 1896 | char *opts = NULL; |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1897 | if (flags & FUSE_DEBUG_COMPAT1) |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1898 | opts = "debug"; |
| 1899 | return fuse_new_common(fd, opts, (struct fuse_operations *) op, |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1900 | sizeof(struct fuse_operations_compat1), 11); |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1901 | } |
| 1902 | |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1903 | void fuse_destroy(struct fuse *f) |
| 1904 | { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1905 | size_t i; |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1906 | for (i = 0; i < f->id_table_size; i++) { |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1907 | struct node *node; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1908 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1909 | for (node = f->id_table[i]; node != NULL; node = node->id_next) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1910 | if (node->is_hidden) { |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1911 | char *path = get_path(f, node->nodeid); |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1912 | if (path) |
| 1913 | f->op.unlink(path); |
| 1914 | } |
| 1915 | } |
| 1916 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1917 | for (i = 0; i < f->id_table_size; i++) { |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1918 | struct node *node; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1919 | struct node *next; |
Miklos Szeredi | 1ea9c96 | 2004-06-24 21:00:00 +0000 | [diff] [blame] | 1920 | |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1921 | for (node = f->id_table[i]; node != NULL; node = next) { |
| 1922 | next = node->id_next; |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1923 | free_node(node); |
| 1924 | } |
| 1925 | } |
Miklos Szeredi | a13d900 | 2004-11-02 17:32:03 +0000 | [diff] [blame] | 1926 | free(f->id_table); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1927 | free(f->name_table); |
Miklos Szeredi | a181e61 | 2001-11-06 12:03:23 +0000 | [diff] [blame] | 1928 | pthread_mutex_destroy(&f->lock); |
Miklos Szeredi | 97c61e9 | 2001-11-07 12:09:43 +0000 | [diff] [blame] | 1929 | free(f); |
Miklos Szeredi | 85c74fc | 2001-10-28 19:44:14 +0000 | [diff] [blame] | 1930 | } |
Miklos Szeredi | 0b6a0ad | 2004-12-04 00:40:50 +0000 | [diff] [blame] | 1931 | |
Miklos Szeredi | f458b8c | 2004-12-07 16:46:42 +0000 | [diff] [blame] | 1932 | __asm__(".symver fuse_exited,__fuse_exited@"); |
| 1933 | __asm__(".symver fuse_process_cmd,__fuse_process_cmd@"); |
| 1934 | __asm__(".symver fuse_read_cmd,__fuse_read_cmd@"); |
| 1935 | __asm__(".symver fuse_set_getcontext_func,__fuse_set_getcontext_func@"); |
| 1936 | __asm__(".symver fuse_new_compat2,fuse_new@"); |