Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/fs/hfsplus/dir.c | |
3 | * | |
4 | * Copyright (C) 2001 | |
5 | * Brad Boyer (flar@allandria.com) | |
6 | * (C) 2003 Ardis Technologies <roman@ardistech.com> | |
7 | * | |
8 | * Handling of directories | |
9 | */ | |
10 | ||
11 | #include <linux/errno.h> | |
12 | #include <linux/fs.h> | |
1da177e4 LT |
13 | #include <linux/slab.h> |
14 | #include <linux/random.h> | |
1da177e4 LT |
15 | |
16 | #include "hfsplus_fs.h" | |
17 | #include "hfsplus_raw.h" | |
324ef39a | 18 | #include "xattr.h" |
b4c1107c | 19 | #include "acl.h" |
1da177e4 LT |
20 | |
21 | static inline void hfsplus_instantiate(struct dentry *dentry, | |
22 | struct inode *inode, u32 cnid) | |
23 | { | |
24 | dentry->d_fsdata = (void *)(unsigned long)cnid; | |
25 | d_instantiate(dentry, inode); | |
26 | } | |
27 | ||
28 | /* Find the entry inside dir named dentry->d_name */ | |
29 | static struct dentry *hfsplus_lookup(struct inode *dir, struct dentry *dentry, | |
00cd8dd3 | 30 | unsigned int flags) |
1da177e4 LT |
31 | { |
32 | struct inode *inode = NULL; | |
33 | struct hfs_find_data fd; | |
34 | struct super_block *sb; | |
35 | hfsplus_cat_entry entry; | |
36 | int err; | |
37 | u32 cnid, linkid = 0; | |
38 | u16 type; | |
39 | ||
40 | sb = dir->i_sb; | |
d45bce8f | 41 | |
1da177e4 | 42 | dentry->d_fsdata = NULL; |
5bd9d99d AK |
43 | err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd); |
44 | if (err) | |
45 | return ERR_PTR(err); | |
1da177e4 LT |
46 | hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, &dentry->d_name); |
47 | again: | |
48 | err = hfs_brec_read(&fd, &entry, sizeof(entry)); | |
49 | if (err) { | |
50 | if (err == -ENOENT) { | |
51 | hfs_find_exit(&fd); | |
52 | /* No such entry */ | |
53 | inode = NULL; | |
54 | goto out; | |
55 | } | |
56 | goto fail; | |
57 | } | |
58 | type = be16_to_cpu(entry.type); | |
59 | if (type == HFSPLUS_FOLDER) { | |
60 | if (fd.entrylength < sizeof(struct hfsplus_cat_folder)) { | |
61 | err = -EIO; | |
62 | goto fail; | |
63 | } | |
64 | cnid = be32_to_cpu(entry.folder.id); | |
65 | dentry->d_fsdata = (void *)(unsigned long)cnid; | |
66 | } else if (type == HFSPLUS_FILE) { | |
67 | if (fd.entrylength < sizeof(struct hfsplus_cat_file)) { | |
68 | err = -EIO; | |
69 | goto fail; | |
70 | } | |
71 | cnid = be32_to_cpu(entry.file.id); | |
2753cc28 AS |
72 | if (entry.file.user_info.fdType == |
73 | cpu_to_be32(HFSP_HARDLINK_TYPE) && | |
74 | entry.file.user_info.fdCreator == | |
75 | cpu_to_be32(HFSP_HFSPLUS_CREATOR) && | |
76 | (entry.file.create_date == | |
77 | HFSPLUS_I(HFSPLUS_SB(sb)->hidden_dir)-> | |
78 | create_date || | |
79 | entry.file.create_date == | |
80 | HFSPLUS_I(sb->s_root->d_inode)-> | |
81 | create_date) && | |
82 | HFSPLUS_SB(sb)->hidden_dir) { | |
1da177e4 LT |
83 | struct qstr str; |
84 | char name[32]; | |
85 | ||
86 | if (dentry->d_fsdata) { | |
af8c85bb RZ |
87 | /* |
88 | * We found a link pointing to another link, | |
89 | * so ignore it and treat it as regular file. | |
90 | */ | |
91 | cnid = (unsigned long)dentry->d_fsdata; | |
92 | linkid = 0; | |
93 | } else { | |
94 | dentry->d_fsdata = (void *)(unsigned long)cnid; | |
2753cc28 AS |
95 | linkid = |
96 | be32_to_cpu(entry.file.permissions.dev); | |
af8c85bb RZ |
97 | str.len = sprintf(name, "iNode%d", linkid); |
98 | str.name = name; | |
dd73a01a | 99 | hfsplus_cat_build_key(sb, fd.search_key, |
2753cc28 AS |
100 | HFSPLUS_SB(sb)->hidden_dir->i_ino, |
101 | &str); | |
af8c85bb | 102 | goto again; |
1da177e4 | 103 | } |
1da177e4 LT |
104 | } else if (!dentry->d_fsdata) |
105 | dentry->d_fsdata = (void *)(unsigned long)cnid; | |
106 | } else { | |
d6142673 | 107 | pr_err("invalid catalog entry type in lookup\n"); |
1da177e4 LT |
108 | err = -EIO; |
109 | goto fail; | |
110 | } | |
111 | hfs_find_exit(&fd); | |
63525391 DH |
112 | inode = hfsplus_iget(dir->i_sb, cnid); |
113 | if (IS_ERR(inode)) | |
114 | return ERR_CAST(inode); | |
1da177e4 | 115 | if (S_ISREG(inode->i_mode)) |
f6089ff8 | 116 | HFSPLUS_I(inode)->linkid = linkid; |
1da177e4 LT |
117 | out: |
118 | d_add(dentry, inode); | |
119 | return NULL; | |
120 | fail: | |
121 | hfs_find_exit(&fd); | |
122 | return ERR_PTR(err); | |
123 | } | |
124 | ||
e72514e7 | 125 | static int hfsplus_readdir(struct file *file, struct dir_context *ctx) |
1da177e4 | 126 | { |
e72514e7 | 127 | struct inode *inode = file_inode(file); |
1da177e4 LT |
128 | struct super_block *sb = inode->i_sb; |
129 | int len, err; | |
130 | char strbuf[HFSPLUS_MAX_STRLEN + 1]; | |
131 | hfsplus_cat_entry entry; | |
132 | struct hfs_find_data fd; | |
133 | struct hfsplus_readdir_data *rd; | |
134 | u16 type; | |
135 | ||
e72514e7 | 136 | if (file->f_pos >= inode->i_size) |
1da177e4 LT |
137 | return 0; |
138 | ||
5bd9d99d AK |
139 | err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd); |
140 | if (err) | |
141 | return err; | |
1da177e4 | 142 | hfsplus_cat_build_key(sb, fd.search_key, inode->i_ino, NULL); |
324ef39a | 143 | err = hfs_brec_find(&fd, hfs_find_rec_by_key); |
1da177e4 LT |
144 | if (err) |
145 | goto out; | |
146 | ||
e72514e7 | 147 | if (ctx->pos == 0) { |
1da177e4 | 148 | /* This is completely artificial... */ |
e72514e7 | 149 | if (!dir_emit_dot(file, ctx)) |
1da177e4 | 150 | goto out; |
e72514e7 AV |
151 | ctx->pos = 1; |
152 | } | |
153 | if (ctx->pos == 1) { | |
6f24f892 GKH |
154 | if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) { |
155 | err = -EIO; | |
156 | goto out; | |
157 | } | |
158 | ||
2753cc28 AS |
159 | hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, |
160 | fd.entrylength); | |
1da177e4 | 161 | if (be16_to_cpu(entry.type) != HFSPLUS_FOLDER_THREAD) { |
d6142673 | 162 | pr_err("bad catalog folder thread\n"); |
1da177e4 LT |
163 | err = -EIO; |
164 | goto out; | |
165 | } | |
166 | if (fd.entrylength < HFSPLUS_MIN_THREAD_SZ) { | |
d6142673 | 167 | pr_err("truncated catalog thread\n"); |
1da177e4 LT |
168 | err = -EIO; |
169 | goto out; | |
170 | } | |
e72514e7 | 171 | if (!dir_emit(ctx, "..", 2, |
1da177e4 LT |
172 | be32_to_cpu(entry.thread.parentID), DT_DIR)) |
173 | goto out; | |
e72514e7 | 174 | ctx->pos = 2; |
1da177e4 | 175 | } |
e72514e7 AV |
176 | if (ctx->pos >= inode->i_size) |
177 | goto out; | |
178 | err = hfs_brec_goto(&fd, ctx->pos - 1); | |
179 | if (err) | |
180 | goto out; | |
1da177e4 LT |
181 | for (;;) { |
182 | if (be32_to_cpu(fd.key->cat.parent) != inode->i_ino) { | |
d6142673 | 183 | pr_err("walked past end of dir\n"); |
1da177e4 LT |
184 | err = -EIO; |
185 | goto out; | |
186 | } | |
6f24f892 GKH |
187 | |
188 | if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) { | |
189 | err = -EIO; | |
190 | goto out; | |
191 | } | |
192 | ||
2753cc28 AS |
193 | hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, |
194 | fd.entrylength); | |
1da177e4 LT |
195 | type = be16_to_cpu(entry.type); |
196 | len = HFSPLUS_MAX_STRLEN; | |
197 | err = hfsplus_uni2asc(sb, &fd.key->cat.name, strbuf, &len); | |
198 | if (err) | |
199 | goto out; | |
200 | if (type == HFSPLUS_FOLDER) { | |
2753cc28 AS |
201 | if (fd.entrylength < |
202 | sizeof(struct hfsplus_cat_folder)) { | |
d6142673 | 203 | pr_err("small dir entry\n"); |
1da177e4 LT |
204 | err = -EIO; |
205 | goto out; | |
206 | } | |
dd73a01a CH |
207 | if (HFSPLUS_SB(sb)->hidden_dir && |
208 | HFSPLUS_SB(sb)->hidden_dir->i_ino == | |
209 | be32_to_cpu(entry.folder.id)) | |
1da177e4 | 210 | goto next; |
e72514e7 | 211 | if (!dir_emit(ctx, strbuf, len, |
1da177e4 LT |
212 | be32_to_cpu(entry.folder.id), DT_DIR)) |
213 | break; | |
214 | } else if (type == HFSPLUS_FILE) { | |
215 | if (fd.entrylength < sizeof(struct hfsplus_cat_file)) { | |
d6142673 | 216 | pr_err("small file entry\n"); |
1da177e4 LT |
217 | err = -EIO; |
218 | goto out; | |
219 | } | |
e72514e7 | 220 | if (!dir_emit(ctx, strbuf, len, |
1da177e4 LT |
221 | be32_to_cpu(entry.file.id), DT_REG)) |
222 | break; | |
223 | } else { | |
d6142673 | 224 | pr_err("bad catalog entry type\n"); |
1da177e4 LT |
225 | err = -EIO; |
226 | goto out; | |
227 | } | |
20b7643d | 228 | next: |
e72514e7 AV |
229 | ctx->pos++; |
230 | if (ctx->pos >= inode->i_size) | |
1da177e4 LT |
231 | goto out; |
232 | err = hfs_brec_goto(&fd, 1); | |
233 | if (err) | |
234 | goto out; | |
235 | } | |
e72514e7 | 236 | rd = file->private_data; |
1da177e4 LT |
237 | if (!rd) { |
238 | rd = kmalloc(sizeof(struct hfsplus_readdir_data), GFP_KERNEL); | |
239 | if (!rd) { | |
240 | err = -ENOMEM; | |
241 | goto out; | |
242 | } | |
e72514e7 AV |
243 | file->private_data = rd; |
244 | rd->file = file; | |
6af502de | 245 | list_add(&rd->list, &HFSPLUS_I(inode)->open_dir_list); |
1da177e4 LT |
246 | } |
247 | memcpy(&rd->key, fd.key, sizeof(struct hfsplus_cat_key)); | |
248 | out: | |
249 | hfs_find_exit(&fd); | |
250 | return err; | |
251 | } | |
252 | ||
253 | static int hfsplus_dir_release(struct inode *inode, struct file *file) | |
254 | { | |
255 | struct hfsplus_readdir_data *rd = file->private_data; | |
256 | if (rd) { | |
89755dca | 257 | mutex_lock(&inode->i_mutex); |
1da177e4 | 258 | list_del(&rd->list); |
89755dca | 259 | mutex_unlock(&inode->i_mutex); |
1da177e4 LT |
260 | kfree(rd); |
261 | } | |
262 | return 0; | |
263 | } | |
264 | ||
1da177e4 LT |
265 | static int hfsplus_link(struct dentry *src_dentry, struct inode *dst_dir, |
266 | struct dentry *dst_dentry) | |
267 | { | |
dd73a01a | 268 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dst_dir->i_sb); |
1da177e4 LT |
269 | struct inode *inode = src_dentry->d_inode; |
270 | struct inode *src_dir = src_dentry->d_parent->d_inode; | |
271 | struct qstr str; | |
272 | char name[32]; | |
273 | u32 cnid, id; | |
274 | int res; | |
275 | ||
276 | if (HFSPLUS_IS_RSRC(inode)) | |
277 | return -EPERM; | |
f6089ff8 CH |
278 | if (!S_ISREG(inode->i_mode)) |
279 | return -EPERM; | |
1da177e4 | 280 | |
7ac9fb9c | 281 | mutex_lock(&sbi->vh_mutex); |
1da177e4 LT |
282 | if (inode->i_ino == (u32)(unsigned long)src_dentry->d_fsdata) { |
283 | for (;;) { | |
284 | get_random_bytes(&id, sizeof(cnid)); | |
285 | id &= 0x3fffffff; | |
286 | str.name = name; | |
287 | str.len = sprintf(name, "iNode%d", id); | |
288 | res = hfsplus_rename_cat(inode->i_ino, | |
289 | src_dir, &src_dentry->d_name, | |
dd73a01a | 290 | sbi->hidden_dir, &str); |
1da177e4 LT |
291 | if (!res) |
292 | break; | |
293 | if (res != -EEXIST) | |
7ac9fb9c | 294 | goto out; |
1da177e4 | 295 | } |
f6089ff8 | 296 | HFSPLUS_I(inode)->linkid = id; |
dd73a01a | 297 | cnid = sbi->next_cnid++; |
1da177e4 | 298 | src_dentry->d_fsdata = (void *)(unsigned long)cnid; |
2753cc28 AS |
299 | res = hfsplus_create_cat(cnid, src_dir, |
300 | &src_dentry->d_name, inode); | |
1da177e4 LT |
301 | if (res) |
302 | /* panic? */ | |
7ac9fb9c | 303 | goto out; |
dd73a01a | 304 | sbi->file_count++; |
1da177e4 | 305 | } |
dd73a01a | 306 | cnid = sbi->next_cnid++; |
1da177e4 LT |
307 | res = hfsplus_create_cat(cnid, dst_dir, &dst_dentry->d_name, inode); |
308 | if (res) | |
7ac9fb9c | 309 | goto out; |
1da177e4 | 310 | |
d8c76e6f | 311 | inc_nlink(inode); |
1da177e4 | 312 | hfsplus_instantiate(dst_dentry, inode, cnid); |
7de9c6ee | 313 | ihold(inode); |
1da177e4 LT |
314 | inode->i_ctime = CURRENT_TIME_SEC; |
315 | mark_inode_dirty(inode); | |
dd73a01a | 316 | sbi->file_count++; |
9e6c5829 | 317 | hfsplus_mark_mdb_dirty(dst_dir->i_sb); |
7ac9fb9c CH |
318 | out: |
319 | mutex_unlock(&sbi->vh_mutex); | |
320 | return res; | |
1da177e4 LT |
321 | } |
322 | ||
323 | static int hfsplus_unlink(struct inode *dir, struct dentry *dentry) | |
324 | { | |
dd73a01a | 325 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb); |
1da177e4 LT |
326 | struct inode *inode = dentry->d_inode; |
327 | struct qstr str; | |
328 | char name[32]; | |
329 | u32 cnid; | |
330 | int res; | |
331 | ||
332 | if (HFSPLUS_IS_RSRC(inode)) | |
333 | return -EPERM; | |
334 | ||
7ac9fb9c | 335 | mutex_lock(&sbi->vh_mutex); |
1da177e4 LT |
336 | cnid = (u32)(unsigned long)dentry->d_fsdata; |
337 | if (inode->i_ino == cnid && | |
6af502de | 338 | atomic_read(&HFSPLUS_I(inode)->opencnt)) { |
1da177e4 LT |
339 | str.name = name; |
340 | str.len = sprintf(name, "temp%lu", inode->i_ino); | |
341 | res = hfsplus_rename_cat(inode->i_ino, | |
342 | dir, &dentry->d_name, | |
dd73a01a | 343 | sbi->hidden_dir, &str); |
85b8fe8c | 344 | if (!res) { |
1da177e4 | 345 | inode->i_flags |= S_DEAD; |
85b8fe8c CH |
346 | drop_nlink(inode); |
347 | } | |
7ac9fb9c | 348 | goto out; |
1da177e4 LT |
349 | } |
350 | res = hfsplus_delete_cat(cnid, dir, &dentry->d_name); | |
351 | if (res) | |
7ac9fb9c | 352 | goto out; |
1da177e4 | 353 | |
af8c85bb | 354 | if (inode->i_nlink > 0) |
9a53c3a7 | 355 | drop_nlink(inode); |
76b0c26a RZ |
356 | if (inode->i_ino == cnid) |
357 | clear_nlink(inode); | |
358 | if (!inode->i_nlink) { | |
359 | if (inode->i_ino != cnid) { | |
dd73a01a | 360 | sbi->file_count--; |
6af502de | 361 | if (!atomic_read(&HFSPLUS_I(inode)->opencnt)) { |
76b0c26a | 362 | res = hfsplus_delete_cat(inode->i_ino, |
dd73a01a | 363 | sbi->hidden_dir, |
76b0c26a RZ |
364 | NULL); |
365 | if (!res) | |
366 | hfsplus_delete_inode(inode); | |
367 | } else | |
368 | inode->i_flags |= S_DEAD; | |
1da177e4 | 369 | } else |
76b0c26a | 370 | hfsplus_delete_inode(inode); |
af8c85bb | 371 | } else |
dd73a01a | 372 | sbi->file_count--; |
1da177e4 LT |
373 | inode->i_ctime = CURRENT_TIME_SEC; |
374 | mark_inode_dirty(inode); | |
7ac9fb9c CH |
375 | out: |
376 | mutex_unlock(&sbi->vh_mutex); | |
1da177e4 LT |
377 | return res; |
378 | } | |
379 | ||
1da177e4 LT |
380 | static int hfsplus_rmdir(struct inode *dir, struct dentry *dentry) |
381 | { | |
7ac9fb9c CH |
382 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb); |
383 | struct inode *inode = dentry->d_inode; | |
1da177e4 LT |
384 | int res; |
385 | ||
1da177e4 LT |
386 | if (inode->i_size != 2) |
387 | return -ENOTEMPTY; | |
7ac9fb9c CH |
388 | |
389 | mutex_lock(&sbi->vh_mutex); | |
1da177e4 LT |
390 | res = hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name); |
391 | if (res) | |
7ac9fb9c | 392 | goto out; |
ce71ec36 | 393 | clear_nlink(inode); |
1da177e4 LT |
394 | inode->i_ctime = CURRENT_TIME_SEC; |
395 | hfsplus_delete_inode(inode); | |
396 | mark_inode_dirty(inode); | |
7ac9fb9c CH |
397 | out: |
398 | mutex_unlock(&sbi->vh_mutex); | |
399 | return res; | |
1da177e4 LT |
400 | } |
401 | ||
402 | static int hfsplus_symlink(struct inode *dir, struct dentry *dentry, | |
403 | const char *symname) | |
404 | { | |
7ac9fb9c | 405 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb); |
1da177e4 | 406 | struct inode *inode; |
7ac9fb9c | 407 | int res = -ENOSPC; |
1da177e4 | 408 | |
7ac9fb9c | 409 | mutex_lock(&sbi->vh_mutex); |
f17c89bf | 410 | inode = hfsplus_new_inode(dir->i_sb, S_IFLNK | S_IRWXUGO); |
1da177e4 | 411 | if (!inode) |
7ac9fb9c | 412 | goto out; |
1da177e4 LT |
413 | |
414 | res = page_symlink(inode, symname, strlen(symname) + 1); | |
f17c89bf CH |
415 | if (res) |
416 | goto out_err; | |
1da177e4 | 417 | |
1da177e4 | 418 | res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode); |
f17c89bf CH |
419 | if (res) |
420 | goto out_err; | |
1da177e4 | 421 | |
324ef39a VD |
422 | res = hfsplus_init_inode_security(inode, dir, &dentry->d_name); |
423 | if (res == -EOPNOTSUPP) | |
424 | res = 0; /* Operation is not supported. */ | |
425 | else if (res) { | |
426 | /* Try to delete anyway without error analysis. */ | |
427 | hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name); | |
428 | goto out_err; | |
429 | } | |
430 | ||
f17c89bf CH |
431 | hfsplus_instantiate(dentry, inode, inode->i_ino); |
432 | mark_inode_dirty(inode); | |
7ac9fb9c | 433 | goto out; |
1da177e4 | 434 | |
f17c89bf | 435 | out_err: |
6d6b77f1 | 436 | clear_nlink(inode); |
f17c89bf CH |
437 | hfsplus_delete_inode(inode); |
438 | iput(inode); | |
7ac9fb9c CH |
439 | out: |
440 | mutex_unlock(&sbi->vh_mutex); | |
1da177e4 LT |
441 | return res; |
442 | } | |
443 | ||
444 | static int hfsplus_mknod(struct inode *dir, struct dentry *dentry, | |
1a67aafb | 445 | umode_t mode, dev_t rdev) |
1da177e4 | 446 | { |
7ac9fb9c | 447 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb); |
1da177e4 | 448 | struct inode *inode; |
7ac9fb9c | 449 | int res = -ENOSPC; |
1da177e4 | 450 | |
7ac9fb9c | 451 | mutex_lock(&sbi->vh_mutex); |
30d3abbe | 452 | inode = hfsplus_new_inode(dir->i_sb, mode); |
1da177e4 | 453 | if (!inode) |
7ac9fb9c | 454 | goto out; |
1da177e4 | 455 | |
90e61690 CH |
456 | if (S_ISBLK(mode) || S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) |
457 | init_special_inode(inode, mode, rdev); | |
458 | ||
1da177e4 | 459 | res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode); |
324ef39a VD |
460 | if (res) |
461 | goto failed_mknod; | |
462 | ||
463 | res = hfsplus_init_inode_security(inode, dir, &dentry->d_name); | |
464 | if (res == -EOPNOTSUPP) | |
465 | res = 0; /* Operation is not supported. */ | |
466 | else if (res) { | |
467 | /* Try to delete anyway without error analysis. */ | |
468 | hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name); | |
469 | goto failed_mknod; | |
1da177e4 | 470 | } |
30d3abbe | 471 | |
1da177e4 LT |
472 | hfsplus_instantiate(dentry, inode, inode->i_ino); |
473 | mark_inode_dirty(inode); | |
324ef39a VD |
474 | goto out; |
475 | ||
476 | failed_mknod: | |
477 | clear_nlink(inode); | |
478 | hfsplus_delete_inode(inode); | |
479 | iput(inode); | |
7ac9fb9c CH |
480 | out: |
481 | mutex_unlock(&sbi->vh_mutex); | |
482 | return res; | |
1da177e4 LT |
483 | } |
484 | ||
4acdaf27 | 485 | static int hfsplus_create(struct inode *dir, struct dentry *dentry, umode_t mode, |
ebfc3b49 | 486 | bool excl) |
30d3abbe CH |
487 | { |
488 | return hfsplus_mknod(dir, dentry, mode, 0); | |
489 | } | |
490 | ||
18bb1db3 | 491 | static int hfsplus_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) |
30d3abbe CH |
492 | { |
493 | return hfsplus_mknod(dir, dentry, mode | S_IFDIR, 0); | |
494 | } | |
495 | ||
1da177e4 LT |
496 | static int hfsplus_rename(struct inode *old_dir, struct dentry *old_dentry, |
497 | struct inode *new_dir, struct dentry *new_dentry) | |
498 | { | |
499 | int res; | |
500 | ||
501 | /* Unlink destination if it already exists */ | |
502 | if (new_dentry->d_inode) { | |
e3911785 | 503 | if (S_ISDIR(new_dentry->d_inode->i_mode)) |
40de9a7c | 504 | res = hfsplus_rmdir(new_dir, new_dentry); |
e3911785 | 505 | else |
40de9a7c | 506 | res = hfsplus_unlink(new_dir, new_dentry); |
1da177e4 LT |
507 | if (res) |
508 | return res; | |
509 | } | |
510 | ||
511 | res = hfsplus_rename_cat((u32)(unsigned long)old_dentry->d_fsdata, | |
512 | old_dir, &old_dentry->d_name, | |
513 | new_dir, &new_dentry->d_name); | |
514 | if (!res) | |
515 | new_dentry->d_fsdata = old_dentry->d_fsdata; | |
516 | return res; | |
517 | } | |
518 | ||
92e1d5be | 519 | const struct inode_operations hfsplus_dir_inode_operations = { |
324ef39a VD |
520 | .lookup = hfsplus_lookup, |
521 | .create = hfsplus_create, | |
522 | .link = hfsplus_link, | |
523 | .unlink = hfsplus_unlink, | |
524 | .mkdir = hfsplus_mkdir, | |
525 | .rmdir = hfsplus_rmdir, | |
526 | .symlink = hfsplus_symlink, | |
527 | .mknod = hfsplus_mknod, | |
528 | .rename = hfsplus_rename, | |
529 | .setxattr = generic_setxattr, | |
530 | .getxattr = generic_getxattr, | |
531 | .listxattr = hfsplus_listxattr, | |
532 | .removexattr = hfsplus_removexattr, | |
b4c1107c VD |
533 | #ifdef CONFIG_HFSPLUS_FS_POSIX_ACL |
534 | .get_acl = hfsplus_get_posix_acl, | |
b0a7ab57 | 535 | .set_acl = hfsplus_set_posix_acl, |
b4c1107c | 536 | #endif |
1da177e4 LT |
537 | }; |
538 | ||
4b6f5d20 | 539 | const struct file_operations hfsplus_dir_operations = { |
eb29d66d | 540 | .fsync = hfsplus_file_fsync, |
1da177e4 | 541 | .read = generic_read_dir, |
e72514e7 | 542 | .iterate = hfsplus_readdir, |
7cc4bcc6 | 543 | .unlocked_ioctl = hfsplus_ioctl, |
1da177e4 LT |
544 | .llseek = generic_file_llseek, |
545 | .release = hfsplus_dir_release, | |
546 | }; |