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Commit | Line | Data |
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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> | |
017f8da4 | 15 | #include <linux/nls.h> |
1da177e4 LT |
16 | |
17 | #include "hfsplus_fs.h" | |
18 | #include "hfsplus_raw.h" | |
324ef39a | 19 | #include "xattr.h" |
b4c1107c | 20 | #include "acl.h" |
1da177e4 LT |
21 | |
22 | static inline void hfsplus_instantiate(struct dentry *dentry, | |
23 | struct inode *inode, u32 cnid) | |
24 | { | |
25 | dentry->d_fsdata = (void *)(unsigned long)cnid; | |
26 | d_instantiate(dentry, inode); | |
27 | } | |
28 | ||
29 | /* Find the entry inside dir named dentry->d_name */ | |
30 | static struct dentry *hfsplus_lookup(struct inode *dir, struct dentry *dentry, | |
00cd8dd3 | 31 | unsigned int flags) |
1da177e4 LT |
32 | { |
33 | struct inode *inode = NULL; | |
34 | struct hfs_find_data fd; | |
35 | struct super_block *sb; | |
36 | hfsplus_cat_entry entry; | |
37 | int err; | |
38 | u32 cnid, linkid = 0; | |
39 | u16 type; | |
40 | ||
41 | sb = dir->i_sb; | |
d45bce8f | 42 | |
1da177e4 | 43 | dentry->d_fsdata = NULL; |
5bd9d99d AK |
44 | err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd); |
45 | if (err) | |
46 | return ERR_PTR(err); | |
1da177e4 LT |
47 | hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, &dentry->d_name); |
48 | again: | |
49 | err = hfs_brec_read(&fd, &entry, sizeof(entry)); | |
50 | if (err) { | |
51 | if (err == -ENOENT) { | |
52 | hfs_find_exit(&fd); | |
53 | /* No such entry */ | |
54 | inode = NULL; | |
55 | goto out; | |
56 | } | |
57 | goto fail; | |
58 | } | |
59 | type = be16_to_cpu(entry.type); | |
60 | if (type == HFSPLUS_FOLDER) { | |
61 | if (fd.entrylength < sizeof(struct hfsplus_cat_folder)) { | |
62 | err = -EIO; | |
63 | goto fail; | |
64 | } | |
65 | cnid = be32_to_cpu(entry.folder.id); | |
66 | dentry->d_fsdata = (void *)(unsigned long)cnid; | |
67 | } else if (type == HFSPLUS_FILE) { | |
68 | if (fd.entrylength < sizeof(struct hfsplus_cat_file)) { | |
69 | err = -EIO; | |
70 | goto fail; | |
71 | } | |
72 | cnid = be32_to_cpu(entry.file.id); | |
2753cc28 AS |
73 | if (entry.file.user_info.fdType == |
74 | cpu_to_be32(HFSP_HARDLINK_TYPE) && | |
75 | entry.file.user_info.fdCreator == | |
76 | cpu_to_be32(HFSP_HFSPLUS_CREATOR) && | |
77 | (entry.file.create_date == | |
78 | HFSPLUS_I(HFSPLUS_SB(sb)->hidden_dir)-> | |
79 | create_date || | |
80 | entry.file.create_date == | |
81 | HFSPLUS_I(sb->s_root->d_inode)-> | |
82 | create_date) && | |
83 | HFSPLUS_SB(sb)->hidden_dir) { | |
1da177e4 LT |
84 | struct qstr str; |
85 | char name[32]; | |
86 | ||
87 | if (dentry->d_fsdata) { | |
af8c85bb RZ |
88 | /* |
89 | * We found a link pointing to another link, | |
90 | * so ignore it and treat it as regular file. | |
91 | */ | |
92 | cnid = (unsigned long)dentry->d_fsdata; | |
93 | linkid = 0; | |
94 | } else { | |
95 | dentry->d_fsdata = (void *)(unsigned long)cnid; | |
2753cc28 AS |
96 | linkid = |
97 | be32_to_cpu(entry.file.permissions.dev); | |
af8c85bb RZ |
98 | str.len = sprintf(name, "iNode%d", linkid); |
99 | str.name = name; | |
dd73a01a | 100 | hfsplus_cat_build_key(sb, fd.search_key, |
2753cc28 AS |
101 | HFSPLUS_SB(sb)->hidden_dir->i_ino, |
102 | &str); | |
af8c85bb | 103 | goto again; |
1da177e4 | 104 | } |
1da177e4 LT |
105 | } else if (!dentry->d_fsdata) |
106 | dentry->d_fsdata = (void *)(unsigned long)cnid; | |
107 | } else { | |
d6142673 | 108 | pr_err("invalid catalog entry type in lookup\n"); |
1da177e4 LT |
109 | err = -EIO; |
110 | goto fail; | |
111 | } | |
112 | hfs_find_exit(&fd); | |
63525391 DH |
113 | inode = hfsplus_iget(dir->i_sb, cnid); |
114 | if (IS_ERR(inode)) | |
115 | return ERR_CAST(inode); | |
1da177e4 | 116 | if (S_ISREG(inode->i_mode)) |
f6089ff8 | 117 | HFSPLUS_I(inode)->linkid = linkid; |
1da177e4 LT |
118 | out: |
119 | d_add(dentry, inode); | |
120 | return NULL; | |
121 | fail: | |
122 | hfs_find_exit(&fd); | |
123 | return ERR_PTR(err); | |
124 | } | |
125 | ||
e72514e7 | 126 | static int hfsplus_readdir(struct file *file, struct dir_context *ctx) |
1da177e4 | 127 | { |
e72514e7 | 128 | struct inode *inode = file_inode(file); |
1da177e4 LT |
129 | struct super_block *sb = inode->i_sb; |
130 | int len, err; | |
017f8da4 | 131 | char *strbuf; |
1da177e4 LT |
132 | hfsplus_cat_entry entry; |
133 | struct hfs_find_data fd; | |
134 | struct hfsplus_readdir_data *rd; | |
135 | u16 type; | |
136 | ||
e72514e7 | 137 | if (file->f_pos >= inode->i_size) |
1da177e4 LT |
138 | return 0; |
139 | ||
5bd9d99d AK |
140 | err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd); |
141 | if (err) | |
142 | return err; | |
017f8da4 HTL |
143 | strbuf = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_MAX_STRLEN + 1, GFP_KERNEL); |
144 | if (!strbuf) { | |
145 | err = -ENOMEM; | |
146 | goto out; | |
147 | } | |
1da177e4 | 148 | hfsplus_cat_build_key(sb, fd.search_key, inode->i_ino, NULL); |
324ef39a | 149 | err = hfs_brec_find(&fd, hfs_find_rec_by_key); |
1da177e4 LT |
150 | if (err) |
151 | goto out; | |
152 | ||
e72514e7 | 153 | if (ctx->pos == 0) { |
1da177e4 | 154 | /* This is completely artificial... */ |
e72514e7 | 155 | if (!dir_emit_dot(file, ctx)) |
1da177e4 | 156 | goto out; |
e72514e7 AV |
157 | ctx->pos = 1; |
158 | } | |
159 | if (ctx->pos == 1) { | |
6f24f892 GKH |
160 | if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) { |
161 | err = -EIO; | |
162 | goto out; | |
163 | } | |
164 | ||
2753cc28 AS |
165 | hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, |
166 | fd.entrylength); | |
1da177e4 | 167 | if (be16_to_cpu(entry.type) != HFSPLUS_FOLDER_THREAD) { |
d6142673 | 168 | pr_err("bad catalog folder thread\n"); |
1da177e4 LT |
169 | err = -EIO; |
170 | goto out; | |
171 | } | |
172 | if (fd.entrylength < HFSPLUS_MIN_THREAD_SZ) { | |
d6142673 | 173 | pr_err("truncated catalog thread\n"); |
1da177e4 LT |
174 | err = -EIO; |
175 | goto out; | |
176 | } | |
e72514e7 | 177 | if (!dir_emit(ctx, "..", 2, |
1da177e4 LT |
178 | be32_to_cpu(entry.thread.parentID), DT_DIR)) |
179 | goto out; | |
e72514e7 | 180 | ctx->pos = 2; |
1da177e4 | 181 | } |
e72514e7 AV |
182 | if (ctx->pos >= inode->i_size) |
183 | goto out; | |
184 | err = hfs_brec_goto(&fd, ctx->pos - 1); | |
185 | if (err) | |
186 | goto out; | |
1da177e4 LT |
187 | for (;;) { |
188 | if (be32_to_cpu(fd.key->cat.parent) != inode->i_ino) { | |
d6142673 | 189 | pr_err("walked past end of dir\n"); |
1da177e4 LT |
190 | err = -EIO; |
191 | goto out; | |
192 | } | |
6f24f892 GKH |
193 | |
194 | if (fd.entrylength > sizeof(entry) || fd.entrylength < 0) { | |
195 | err = -EIO; | |
196 | goto out; | |
197 | } | |
198 | ||
2753cc28 AS |
199 | hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, |
200 | fd.entrylength); | |
1da177e4 | 201 | type = be16_to_cpu(entry.type); |
017f8da4 | 202 | len = NLS_MAX_CHARSET_SIZE * HFSPLUS_MAX_STRLEN; |
1da177e4 LT |
203 | err = hfsplus_uni2asc(sb, &fd.key->cat.name, strbuf, &len); |
204 | if (err) | |
205 | goto out; | |
206 | if (type == HFSPLUS_FOLDER) { | |
2753cc28 AS |
207 | if (fd.entrylength < |
208 | sizeof(struct hfsplus_cat_folder)) { | |
d6142673 | 209 | pr_err("small dir entry\n"); |
1da177e4 LT |
210 | err = -EIO; |
211 | goto out; | |
212 | } | |
dd73a01a CH |
213 | if (HFSPLUS_SB(sb)->hidden_dir && |
214 | HFSPLUS_SB(sb)->hidden_dir->i_ino == | |
215 | be32_to_cpu(entry.folder.id)) | |
1da177e4 | 216 | goto next; |
e72514e7 | 217 | if (!dir_emit(ctx, strbuf, len, |
1da177e4 LT |
218 | be32_to_cpu(entry.folder.id), DT_DIR)) |
219 | break; | |
220 | } else if (type == HFSPLUS_FILE) { | |
97a62eae SA |
221 | u16 mode; |
222 | unsigned type = DT_UNKNOWN; | |
223 | ||
1da177e4 | 224 | if (fd.entrylength < sizeof(struct hfsplus_cat_file)) { |
d6142673 | 225 | pr_err("small file entry\n"); |
1da177e4 LT |
226 | err = -EIO; |
227 | goto out; | |
228 | } | |
97a62eae SA |
229 | |
230 | mode = be16_to_cpu(entry.file.permissions.mode); | |
231 | if (S_ISREG(mode)) | |
232 | type = DT_REG; | |
233 | else if (S_ISLNK(mode)) | |
234 | type = DT_LNK; | |
235 | else if (S_ISFIFO(mode)) | |
236 | type = DT_FIFO; | |
237 | else if (S_ISCHR(mode)) | |
238 | type = DT_CHR; | |
239 | else if (S_ISBLK(mode)) | |
240 | type = DT_BLK; | |
241 | else if (S_ISSOCK(mode)) | |
242 | type = DT_SOCK; | |
243 | ||
e72514e7 | 244 | if (!dir_emit(ctx, strbuf, len, |
97a62eae | 245 | be32_to_cpu(entry.file.id), type)) |
1da177e4 LT |
246 | break; |
247 | } else { | |
d6142673 | 248 | pr_err("bad catalog entry type\n"); |
1da177e4 LT |
249 | err = -EIO; |
250 | goto out; | |
251 | } | |
20b7643d | 252 | next: |
e72514e7 AV |
253 | ctx->pos++; |
254 | if (ctx->pos >= inode->i_size) | |
1da177e4 LT |
255 | goto out; |
256 | err = hfs_brec_goto(&fd, 1); | |
257 | if (err) | |
258 | goto out; | |
259 | } | |
e72514e7 | 260 | rd = file->private_data; |
1da177e4 LT |
261 | if (!rd) { |
262 | rd = kmalloc(sizeof(struct hfsplus_readdir_data), GFP_KERNEL); | |
263 | if (!rd) { | |
264 | err = -ENOMEM; | |
265 | goto out; | |
266 | } | |
e72514e7 AV |
267 | file->private_data = rd; |
268 | rd->file = file; | |
6af502de | 269 | list_add(&rd->list, &HFSPLUS_I(inode)->open_dir_list); |
1da177e4 LT |
270 | } |
271 | memcpy(&rd->key, fd.key, sizeof(struct hfsplus_cat_key)); | |
272 | out: | |
017f8da4 | 273 | kfree(strbuf); |
1da177e4 LT |
274 | hfs_find_exit(&fd); |
275 | return err; | |
276 | } | |
277 | ||
278 | static int hfsplus_dir_release(struct inode *inode, struct file *file) | |
279 | { | |
280 | struct hfsplus_readdir_data *rd = file->private_data; | |
281 | if (rd) { | |
89755dca | 282 | mutex_lock(&inode->i_mutex); |
1da177e4 | 283 | list_del(&rd->list); |
89755dca | 284 | mutex_unlock(&inode->i_mutex); |
1da177e4 LT |
285 | kfree(rd); |
286 | } | |
287 | return 0; | |
288 | } | |
289 | ||
1da177e4 LT |
290 | static int hfsplus_link(struct dentry *src_dentry, struct inode *dst_dir, |
291 | struct dentry *dst_dentry) | |
292 | { | |
dd73a01a | 293 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dst_dir->i_sb); |
1da177e4 LT |
294 | struct inode *inode = src_dentry->d_inode; |
295 | struct inode *src_dir = src_dentry->d_parent->d_inode; | |
296 | struct qstr str; | |
297 | char name[32]; | |
298 | u32 cnid, id; | |
299 | int res; | |
300 | ||
301 | if (HFSPLUS_IS_RSRC(inode)) | |
302 | return -EPERM; | |
f6089ff8 CH |
303 | if (!S_ISREG(inode->i_mode)) |
304 | return -EPERM; | |
1da177e4 | 305 | |
7ac9fb9c | 306 | mutex_lock(&sbi->vh_mutex); |
1da177e4 LT |
307 | if (inode->i_ino == (u32)(unsigned long)src_dentry->d_fsdata) { |
308 | for (;;) { | |
309 | get_random_bytes(&id, sizeof(cnid)); | |
310 | id &= 0x3fffffff; | |
311 | str.name = name; | |
312 | str.len = sprintf(name, "iNode%d", id); | |
313 | res = hfsplus_rename_cat(inode->i_ino, | |
314 | src_dir, &src_dentry->d_name, | |
dd73a01a | 315 | sbi->hidden_dir, &str); |
1da177e4 LT |
316 | if (!res) |
317 | break; | |
318 | if (res != -EEXIST) | |
7ac9fb9c | 319 | goto out; |
1da177e4 | 320 | } |
f6089ff8 | 321 | HFSPLUS_I(inode)->linkid = id; |
dd73a01a | 322 | cnid = sbi->next_cnid++; |
1da177e4 | 323 | src_dentry->d_fsdata = (void *)(unsigned long)cnid; |
2753cc28 AS |
324 | res = hfsplus_create_cat(cnid, src_dir, |
325 | &src_dentry->d_name, inode); | |
1da177e4 LT |
326 | if (res) |
327 | /* panic? */ | |
7ac9fb9c | 328 | goto out; |
dd73a01a | 329 | sbi->file_count++; |
1da177e4 | 330 | } |
dd73a01a | 331 | cnid = sbi->next_cnid++; |
1da177e4 LT |
332 | res = hfsplus_create_cat(cnid, dst_dir, &dst_dentry->d_name, inode); |
333 | if (res) | |
7ac9fb9c | 334 | goto out; |
1da177e4 | 335 | |
d8c76e6f | 336 | inc_nlink(inode); |
1da177e4 | 337 | hfsplus_instantiate(dst_dentry, inode, cnid); |
7de9c6ee | 338 | ihold(inode); |
1da177e4 LT |
339 | inode->i_ctime = CURRENT_TIME_SEC; |
340 | mark_inode_dirty(inode); | |
dd73a01a | 341 | sbi->file_count++; |
9e6c5829 | 342 | hfsplus_mark_mdb_dirty(dst_dir->i_sb); |
7ac9fb9c CH |
343 | out: |
344 | mutex_unlock(&sbi->vh_mutex); | |
345 | return res; | |
1da177e4 LT |
346 | } |
347 | ||
348 | static int hfsplus_unlink(struct inode *dir, struct dentry *dentry) | |
349 | { | |
dd73a01a | 350 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb); |
1da177e4 LT |
351 | struct inode *inode = dentry->d_inode; |
352 | struct qstr str; | |
353 | char name[32]; | |
354 | u32 cnid; | |
355 | int res; | |
356 | ||
357 | if (HFSPLUS_IS_RSRC(inode)) | |
358 | return -EPERM; | |
359 | ||
7ac9fb9c | 360 | mutex_lock(&sbi->vh_mutex); |
1da177e4 LT |
361 | cnid = (u32)(unsigned long)dentry->d_fsdata; |
362 | if (inode->i_ino == cnid && | |
6af502de | 363 | atomic_read(&HFSPLUS_I(inode)->opencnt)) { |
1da177e4 LT |
364 | str.name = name; |
365 | str.len = sprintf(name, "temp%lu", inode->i_ino); | |
366 | res = hfsplus_rename_cat(inode->i_ino, | |
367 | dir, &dentry->d_name, | |
dd73a01a | 368 | sbi->hidden_dir, &str); |
85b8fe8c | 369 | if (!res) { |
1da177e4 | 370 | inode->i_flags |= S_DEAD; |
85b8fe8c CH |
371 | drop_nlink(inode); |
372 | } | |
7ac9fb9c | 373 | goto out; |
1da177e4 LT |
374 | } |
375 | res = hfsplus_delete_cat(cnid, dir, &dentry->d_name); | |
376 | if (res) | |
7ac9fb9c | 377 | goto out; |
1da177e4 | 378 | |
af8c85bb | 379 | if (inode->i_nlink > 0) |
9a53c3a7 | 380 | drop_nlink(inode); |
76b0c26a RZ |
381 | if (inode->i_ino == cnid) |
382 | clear_nlink(inode); | |
383 | if (!inode->i_nlink) { | |
384 | if (inode->i_ino != cnid) { | |
dd73a01a | 385 | sbi->file_count--; |
6af502de | 386 | if (!atomic_read(&HFSPLUS_I(inode)->opencnt)) { |
76b0c26a | 387 | res = hfsplus_delete_cat(inode->i_ino, |
dd73a01a | 388 | sbi->hidden_dir, |
76b0c26a RZ |
389 | NULL); |
390 | if (!res) | |
391 | hfsplus_delete_inode(inode); | |
392 | } else | |
393 | inode->i_flags |= S_DEAD; | |
1da177e4 | 394 | } else |
76b0c26a | 395 | hfsplus_delete_inode(inode); |
af8c85bb | 396 | } else |
dd73a01a | 397 | sbi->file_count--; |
1da177e4 LT |
398 | inode->i_ctime = CURRENT_TIME_SEC; |
399 | mark_inode_dirty(inode); | |
7ac9fb9c CH |
400 | out: |
401 | mutex_unlock(&sbi->vh_mutex); | |
1da177e4 LT |
402 | return res; |
403 | } | |
404 | ||
1da177e4 LT |
405 | static int hfsplus_rmdir(struct inode *dir, struct dentry *dentry) |
406 | { | |
7ac9fb9c CH |
407 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb); |
408 | struct inode *inode = dentry->d_inode; | |
1da177e4 LT |
409 | int res; |
410 | ||
1da177e4 LT |
411 | if (inode->i_size != 2) |
412 | return -ENOTEMPTY; | |
7ac9fb9c CH |
413 | |
414 | mutex_lock(&sbi->vh_mutex); | |
1da177e4 LT |
415 | res = hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name); |
416 | if (res) | |
7ac9fb9c | 417 | goto out; |
ce71ec36 | 418 | clear_nlink(inode); |
1da177e4 LT |
419 | inode->i_ctime = CURRENT_TIME_SEC; |
420 | hfsplus_delete_inode(inode); | |
421 | mark_inode_dirty(inode); | |
7ac9fb9c CH |
422 | out: |
423 | mutex_unlock(&sbi->vh_mutex); | |
424 | return res; | |
1da177e4 LT |
425 | } |
426 | ||
427 | static int hfsplus_symlink(struct inode *dir, struct dentry *dentry, | |
428 | const char *symname) | |
429 | { | |
7ac9fb9c | 430 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb); |
1da177e4 | 431 | struct inode *inode; |
7ac9fb9c | 432 | int res = -ENOSPC; |
1da177e4 | 433 | |
7ac9fb9c | 434 | mutex_lock(&sbi->vh_mutex); |
f17c89bf | 435 | inode = hfsplus_new_inode(dir->i_sb, S_IFLNK | S_IRWXUGO); |
1da177e4 | 436 | if (!inode) |
7ac9fb9c | 437 | goto out; |
1da177e4 LT |
438 | |
439 | res = page_symlink(inode, symname, strlen(symname) + 1); | |
f17c89bf CH |
440 | if (res) |
441 | goto out_err; | |
1da177e4 | 442 | |
1da177e4 | 443 | res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode); |
f17c89bf CH |
444 | if (res) |
445 | goto out_err; | |
1da177e4 | 446 | |
324ef39a VD |
447 | res = hfsplus_init_inode_security(inode, dir, &dentry->d_name); |
448 | if (res == -EOPNOTSUPP) | |
449 | res = 0; /* Operation is not supported. */ | |
450 | else if (res) { | |
451 | /* Try to delete anyway without error analysis. */ | |
452 | hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name); | |
453 | goto out_err; | |
454 | } | |
455 | ||
f17c89bf CH |
456 | hfsplus_instantiate(dentry, inode, inode->i_ino); |
457 | mark_inode_dirty(inode); | |
7ac9fb9c | 458 | goto out; |
1da177e4 | 459 | |
f17c89bf | 460 | out_err: |
6d6b77f1 | 461 | clear_nlink(inode); |
f17c89bf CH |
462 | hfsplus_delete_inode(inode); |
463 | iput(inode); | |
7ac9fb9c CH |
464 | out: |
465 | mutex_unlock(&sbi->vh_mutex); | |
1da177e4 LT |
466 | return res; |
467 | } | |
468 | ||
469 | static int hfsplus_mknod(struct inode *dir, struct dentry *dentry, | |
1a67aafb | 470 | umode_t mode, dev_t rdev) |
1da177e4 | 471 | { |
7ac9fb9c | 472 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb); |
1da177e4 | 473 | struct inode *inode; |
7ac9fb9c | 474 | int res = -ENOSPC; |
1da177e4 | 475 | |
7ac9fb9c | 476 | mutex_lock(&sbi->vh_mutex); |
30d3abbe | 477 | inode = hfsplus_new_inode(dir->i_sb, mode); |
1da177e4 | 478 | if (!inode) |
7ac9fb9c | 479 | goto out; |
1da177e4 | 480 | |
90e61690 CH |
481 | if (S_ISBLK(mode) || S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) |
482 | init_special_inode(inode, mode, rdev); | |
483 | ||
1da177e4 | 484 | res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode); |
324ef39a VD |
485 | if (res) |
486 | goto failed_mknod; | |
487 | ||
488 | res = hfsplus_init_inode_security(inode, dir, &dentry->d_name); | |
489 | if (res == -EOPNOTSUPP) | |
490 | res = 0; /* Operation is not supported. */ | |
491 | else if (res) { | |
492 | /* Try to delete anyway without error analysis. */ | |
493 | hfsplus_delete_cat(inode->i_ino, dir, &dentry->d_name); | |
494 | goto failed_mknod; | |
1da177e4 | 495 | } |
30d3abbe | 496 | |
1da177e4 LT |
497 | hfsplus_instantiate(dentry, inode, inode->i_ino); |
498 | mark_inode_dirty(inode); | |
324ef39a VD |
499 | goto out; |
500 | ||
501 | failed_mknod: | |
502 | clear_nlink(inode); | |
503 | hfsplus_delete_inode(inode); | |
504 | iput(inode); | |
7ac9fb9c CH |
505 | out: |
506 | mutex_unlock(&sbi->vh_mutex); | |
507 | return res; | |
1da177e4 LT |
508 | } |
509 | ||
4acdaf27 | 510 | static int hfsplus_create(struct inode *dir, struct dentry *dentry, umode_t mode, |
ebfc3b49 | 511 | bool excl) |
30d3abbe CH |
512 | { |
513 | return hfsplus_mknod(dir, dentry, mode, 0); | |
514 | } | |
515 | ||
18bb1db3 | 516 | static int hfsplus_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) |
30d3abbe CH |
517 | { |
518 | return hfsplus_mknod(dir, dentry, mode | S_IFDIR, 0); | |
519 | } | |
520 | ||
1da177e4 LT |
521 | static int hfsplus_rename(struct inode *old_dir, struct dentry *old_dentry, |
522 | struct inode *new_dir, struct dentry *new_dentry) | |
523 | { | |
524 | int res; | |
525 | ||
526 | /* Unlink destination if it already exists */ | |
527 | if (new_dentry->d_inode) { | |
e3911785 | 528 | if (S_ISDIR(new_dentry->d_inode->i_mode)) |
40de9a7c | 529 | res = hfsplus_rmdir(new_dir, new_dentry); |
e3911785 | 530 | else |
40de9a7c | 531 | res = hfsplus_unlink(new_dir, new_dentry); |
1da177e4 LT |
532 | if (res) |
533 | return res; | |
534 | } | |
535 | ||
536 | res = hfsplus_rename_cat((u32)(unsigned long)old_dentry->d_fsdata, | |
537 | old_dir, &old_dentry->d_name, | |
538 | new_dir, &new_dentry->d_name); | |
539 | if (!res) | |
540 | new_dentry->d_fsdata = old_dentry->d_fsdata; | |
541 | return res; | |
542 | } | |
543 | ||
92e1d5be | 544 | const struct inode_operations hfsplus_dir_inode_operations = { |
324ef39a VD |
545 | .lookup = hfsplus_lookup, |
546 | .create = hfsplus_create, | |
547 | .link = hfsplus_link, | |
548 | .unlink = hfsplus_unlink, | |
549 | .mkdir = hfsplus_mkdir, | |
550 | .rmdir = hfsplus_rmdir, | |
551 | .symlink = hfsplus_symlink, | |
552 | .mknod = hfsplus_mknod, | |
553 | .rename = hfsplus_rename, | |
554 | .setxattr = generic_setxattr, | |
555 | .getxattr = generic_getxattr, | |
556 | .listxattr = hfsplus_listxattr, | |
b168fff7 | 557 | .removexattr = generic_removexattr, |
b4c1107c VD |
558 | #ifdef CONFIG_HFSPLUS_FS_POSIX_ACL |
559 | .get_acl = hfsplus_get_posix_acl, | |
b0a7ab57 | 560 | .set_acl = hfsplus_set_posix_acl, |
b4c1107c | 561 | #endif |
1da177e4 LT |
562 | }; |
563 | ||
4b6f5d20 | 564 | const struct file_operations hfsplus_dir_operations = { |
eb29d66d | 565 | .fsync = hfsplus_file_fsync, |
1da177e4 | 566 | .read = generic_read_dir, |
e72514e7 | 567 | .iterate = hfsplus_readdir, |
7cc4bcc6 | 568 | .unlocked_ioctl = hfsplus_ioctl, |
1da177e4 LT |
569 | .llseek = generic_file_llseek, |
570 | .release = hfsplus_dir_release, | |
571 | }; |