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Diffstat (limited to 'fs/reiserfs/xattr_acl.c')
-rw-r--r--fs/reiserfs/xattr_acl.c641
1 files changed, 317 insertions, 324 deletions
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index c312881c5f53..6703efa3c430 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -9,7 +9,8 @@
9#include <linux/reiserfs_acl.h> 9#include <linux/reiserfs_acl.h>
10#include <asm/uaccess.h> 10#include <asm/uaccess.h>
11 11
12static int reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl); 12static int reiserfs_set_acl(struct inode *inode, int type,
13 struct posix_acl *acl);
13 14
14static int 15static int
15xattr_set_acl(struct inode *inode, int type, const void *value, size_t size) 16xattr_set_acl(struct inode *inode, int type, const void *value, size_t size)
@@ -34,14 +35,13 @@ xattr_set_acl(struct inode *inode, int type, const void *value, size_t size)
34 } else 35 } else
35 acl = NULL; 36 acl = NULL;
36 37
37 error = reiserfs_set_acl (inode, type, acl); 38 error = reiserfs_set_acl(inode, type, acl);
38 39
39release_and_out: 40 release_and_out:
40 posix_acl_release(acl); 41 posix_acl_release(acl);
41 return error; 42 return error;
42} 43}
43 44
44
45static int 45static int
46xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size) 46xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
47{ 47{
@@ -51,7 +51,7 @@ xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
51 if (!reiserfs_posixacl(inode->i_sb)) 51 if (!reiserfs_posixacl(inode->i_sb))
52 return -EOPNOTSUPP; 52 return -EOPNOTSUPP;
53 53
54 acl = reiserfs_get_acl (inode, type); 54 acl = reiserfs_get_acl(inode, type);
55 if (IS_ERR(acl)) 55 if (IS_ERR(acl))
56 return PTR_ERR(acl); 56 return PTR_ERR(acl);
57 if (acl == NULL) 57 if (acl == NULL)
@@ -62,12 +62,10 @@ xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
62 return error; 62 return error;
63} 63}
64 64
65
66/* 65/*
67 * Convert from filesystem to in-memory representation. 66 * Convert from filesystem to in-memory representation.
68 */ 67 */
69static struct posix_acl * 68static struct posix_acl *posix_acl_from_disk(const void *value, size_t size)
70posix_acl_from_disk(const void *value, size_t size)
71{ 69{
72 const char *end = (char *)value + size; 70 const char *end = (char *)value + size;
73 int n, count; 71 int n, count;
@@ -76,8 +74,8 @@ posix_acl_from_disk(const void *value, size_t size)
76 if (!value) 74 if (!value)
77 return NULL; 75 return NULL;
78 if (size < sizeof(reiserfs_acl_header)) 76 if (size < sizeof(reiserfs_acl_header))
79 return ERR_PTR(-EINVAL); 77 return ERR_PTR(-EINVAL);
80 if (((reiserfs_acl_header *)value)->a_version != 78 if (((reiserfs_acl_header *) value)->a_version !=
81 cpu_to_le32(REISERFS_ACL_VERSION)) 79 cpu_to_le32(REISERFS_ACL_VERSION))
82 return ERR_PTR(-EINVAL); 80 return ERR_PTR(-EINVAL);
83 value = (char *)value + sizeof(reiserfs_acl_header); 81 value = (char *)value + sizeof(reiserfs_acl_header);
@@ -89,41 +87,39 @@ posix_acl_from_disk(const void *value, size_t size)
89 acl = posix_acl_alloc(count, GFP_NOFS); 87 acl = posix_acl_alloc(count, GFP_NOFS);
90 if (!acl) 88 if (!acl)
91 return ERR_PTR(-ENOMEM); 89 return ERR_PTR(-ENOMEM);
92 for (n=0; n < count; n++) { 90 for (n = 0; n < count; n++) {
93 reiserfs_acl_entry *entry = 91 reiserfs_acl_entry *entry = (reiserfs_acl_entry *) value;
94 (reiserfs_acl_entry *)value;
95 if ((char *)value + sizeof(reiserfs_acl_entry_short) > end) 92 if ((char *)value + sizeof(reiserfs_acl_entry_short) > end)
96 goto fail; 93 goto fail;
97 acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag); 94 acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag);
98 acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm); 95 acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
99 switch(acl->a_entries[n].e_tag) { 96 switch (acl->a_entries[n].e_tag) {
100 case ACL_USER_OBJ: 97 case ACL_USER_OBJ:
101 case ACL_GROUP_OBJ: 98 case ACL_GROUP_OBJ:
102 case ACL_MASK: 99 case ACL_MASK:
103 case ACL_OTHER: 100 case ACL_OTHER:
104 value = (char *)value + 101 value = (char *)value +
105 sizeof(reiserfs_acl_entry_short); 102 sizeof(reiserfs_acl_entry_short);
106 acl->a_entries[n].e_id = ACL_UNDEFINED_ID; 103 acl->a_entries[n].e_id = ACL_UNDEFINED_ID;
107 break; 104 break;
108 105
109 case ACL_USER: 106 case ACL_USER:
110 case ACL_GROUP: 107 case ACL_GROUP:
111 value = (char *)value + sizeof(reiserfs_acl_entry); 108 value = (char *)value + sizeof(reiserfs_acl_entry);
112 if ((char *)value > end) 109 if ((char *)value > end)
113 goto fail;
114 acl->a_entries[n].e_id =
115 le32_to_cpu(entry->e_id);
116 break;
117
118 default:
119 goto fail; 110 goto fail;
111 acl->a_entries[n].e_id = le32_to_cpu(entry->e_id);
112 break;
113
114 default:
115 goto fail;
120 } 116 }
121 } 117 }
122 if (value != end) 118 if (value != end)
123 goto fail; 119 goto fail;
124 return acl; 120 return acl;
125 121
126fail: 122 fail:
127 posix_acl_release(acl); 123 posix_acl_release(acl);
128 return ERR_PTR(-EINVAL); 124 return ERR_PTR(-EINVAL);
129} 125}
@@ -131,46 +127,46 @@ fail:
131/* 127/*
132 * Convert from in-memory to filesystem representation. 128 * Convert from in-memory to filesystem representation.
133 */ 129 */
134static void * 130static void *posix_acl_to_disk(const struct posix_acl *acl, size_t * size)
135posix_acl_to_disk(const struct posix_acl *acl, size_t *size)
136{ 131{
137 reiserfs_acl_header *ext_acl; 132 reiserfs_acl_header *ext_acl;
138 char *e; 133 char *e;
139 int n; 134 int n;
140 135
141 *size = reiserfs_acl_size(acl->a_count); 136 *size = reiserfs_acl_size(acl->a_count);
142 ext_acl = (reiserfs_acl_header *)kmalloc(sizeof(reiserfs_acl_header) + 137 ext_acl = (reiserfs_acl_header *) kmalloc(sizeof(reiserfs_acl_header) +
143 acl->a_count * sizeof(reiserfs_acl_entry), GFP_NOFS); 138 acl->a_count *
139 sizeof(reiserfs_acl_entry),
140 GFP_NOFS);
144 if (!ext_acl) 141 if (!ext_acl)
145 return ERR_PTR(-ENOMEM); 142 return ERR_PTR(-ENOMEM);
146 ext_acl->a_version = cpu_to_le32(REISERFS_ACL_VERSION); 143 ext_acl->a_version = cpu_to_le32(REISERFS_ACL_VERSION);
147 e = (char *)ext_acl + sizeof(reiserfs_acl_header); 144 e = (char *)ext_acl + sizeof(reiserfs_acl_header);
148 for (n=0; n < acl->a_count; n++) { 145 for (n = 0; n < acl->a_count; n++) {
149 reiserfs_acl_entry *entry = (reiserfs_acl_entry *)e; 146 reiserfs_acl_entry *entry = (reiserfs_acl_entry *) e;
150 entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag); 147 entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag);
151 entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm); 148 entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm);
152 switch(acl->a_entries[n].e_tag) { 149 switch (acl->a_entries[n].e_tag) {
153 case ACL_USER: 150 case ACL_USER:
154 case ACL_GROUP: 151 case ACL_GROUP:
155 entry->e_id = 152 entry->e_id = cpu_to_le32(acl->a_entries[n].e_id);
156 cpu_to_le32(acl->a_entries[n].e_id); 153 e += sizeof(reiserfs_acl_entry);
157 e += sizeof(reiserfs_acl_entry); 154 break;
158 break; 155
159 156 case ACL_USER_OBJ:
160 case ACL_USER_OBJ: 157 case ACL_GROUP_OBJ:
161 case ACL_GROUP_OBJ: 158 case ACL_MASK:
162 case ACL_MASK: 159 case ACL_OTHER:
163 case ACL_OTHER: 160 e += sizeof(reiserfs_acl_entry_short);
164 e += sizeof(reiserfs_acl_entry_short); 161 break;
165 break; 162
166 163 default:
167 default: 164 goto fail;
168 goto fail;
169 } 165 }
170 } 166 }
171 return (char *)ext_acl; 167 return (char *)ext_acl;
172 168
173fail: 169 fail:
174 kfree(ext_acl); 170 kfree(ext_acl);
175 return ERR_PTR(-EINVAL); 171 return ERR_PTR(-EINVAL);
176} 172}
@@ -181,59 +177,58 @@ fail:
181 * inode->i_sem: down 177 * inode->i_sem: down
182 * BKL held [before 2.5.x] 178 * BKL held [before 2.5.x]
183 */ 179 */
184struct posix_acl * 180struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
185reiserfs_get_acl(struct inode *inode, int type)
186{ 181{
187 char *name, *value; 182 char *name, *value;
188 struct posix_acl *acl, **p_acl; 183 struct posix_acl *acl, **p_acl;
189 size_t size; 184 size_t size;
190 int retval; 185 int retval;
191 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode); 186 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
192 187
193 switch (type) { 188 switch (type) {
194 case ACL_TYPE_ACCESS: 189 case ACL_TYPE_ACCESS:
195 name = POSIX_ACL_XATTR_ACCESS; 190 name = POSIX_ACL_XATTR_ACCESS;
196 p_acl = &reiserfs_i->i_acl_access; 191 p_acl = &reiserfs_i->i_acl_access;
197 break; 192 break;
198 case ACL_TYPE_DEFAULT: 193 case ACL_TYPE_DEFAULT:
199 name = POSIX_ACL_XATTR_DEFAULT; 194 name = POSIX_ACL_XATTR_DEFAULT;
200 p_acl = &reiserfs_i->i_acl_default; 195 p_acl = &reiserfs_i->i_acl_default;
201 break; 196 break;
202 default: 197 default:
203 return ERR_PTR (-EINVAL); 198 return ERR_PTR(-EINVAL);
204 } 199 }
205 200
206 if (IS_ERR (*p_acl)) { 201 if (IS_ERR(*p_acl)) {
207 if (PTR_ERR (*p_acl) == -ENODATA) 202 if (PTR_ERR(*p_acl) == -ENODATA)
208 return NULL; 203 return NULL;
209 } else if (*p_acl != NULL) 204 } else if (*p_acl != NULL)
210 return posix_acl_dup (*p_acl); 205 return posix_acl_dup(*p_acl);
211 206
212 size = reiserfs_xattr_get (inode, name, NULL, 0); 207 size = reiserfs_xattr_get(inode, name, NULL, 0);
213 if ((int)size < 0) { 208 if ((int)size < 0) {
214 if (size == -ENODATA || size == -ENOSYS) { 209 if (size == -ENODATA || size == -ENOSYS) {
215 *p_acl = ERR_PTR (-ENODATA); 210 *p_acl = ERR_PTR(-ENODATA);
216 return NULL; 211 return NULL;
217 } 212 }
218 return ERR_PTR (size); 213 return ERR_PTR(size);
219 } 214 }
220 215
221 value = kmalloc (size, GFP_NOFS); 216 value = kmalloc(size, GFP_NOFS);
222 if (!value) 217 if (!value)
223 return ERR_PTR (-ENOMEM); 218 return ERR_PTR(-ENOMEM);
224 219
225 retval = reiserfs_xattr_get(inode, name, value, size); 220 retval = reiserfs_xattr_get(inode, name, value, size);
226 if (retval == -ENODATA || retval == -ENOSYS) { 221 if (retval == -ENODATA || retval == -ENOSYS) {
227 /* This shouldn't actually happen as it should have 222 /* This shouldn't actually happen as it should have
228 been caught above.. but just in case */ 223 been caught above.. but just in case */
229 acl = NULL; 224 acl = NULL;
230 *p_acl = ERR_PTR (-ENODATA); 225 *p_acl = ERR_PTR(-ENODATA);
231 } else if (retval < 0) { 226 } else if (retval < 0) {
232 acl = ERR_PTR(retval); 227 acl = ERR_PTR(retval);
233 } else { 228 } else {
234 acl = posix_acl_from_disk(value, retval); 229 acl = posix_acl_from_disk(value, retval);
235 *p_acl = posix_acl_dup (acl); 230 *p_acl = posix_acl_dup(acl);
236 } 231 }
237 232
238 kfree(value); 233 kfree(value);
239 return acl; 234 return acl;
@@ -248,72 +243,72 @@ reiserfs_get_acl(struct inode *inode, int type)
248static int 243static int
249reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl) 244reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
250{ 245{
251 char *name; 246 char *name;
252 void *value = NULL; 247 void *value = NULL;
253 struct posix_acl **p_acl; 248 struct posix_acl **p_acl;
254 size_t size; 249 size_t size;
255 int error; 250 int error;
256 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode); 251 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
257 252
258 if (S_ISLNK(inode->i_mode)) 253 if (S_ISLNK(inode->i_mode))
259 return -EOPNOTSUPP; 254 return -EOPNOTSUPP;
260 255
261 switch (type) { 256 switch (type) {
262 case ACL_TYPE_ACCESS: 257 case ACL_TYPE_ACCESS:
263 name = POSIX_ACL_XATTR_ACCESS; 258 name = POSIX_ACL_XATTR_ACCESS;
264 p_acl = &reiserfs_i->i_acl_access; 259 p_acl = &reiserfs_i->i_acl_access;
265 if (acl) { 260 if (acl) {
266 mode_t mode = inode->i_mode; 261 mode_t mode = inode->i_mode;
267 error = posix_acl_equiv_mode (acl, &mode); 262 error = posix_acl_equiv_mode(acl, &mode);
268 if (error < 0) 263 if (error < 0)
269 return error; 264 return error;
270 else { 265 else {
271 inode->i_mode = mode; 266 inode->i_mode = mode;
272 if (error == 0) 267 if (error == 0)
273 acl = NULL; 268 acl = NULL;
274 } 269 }
275 } 270 }
276 break; 271 break;
277 case ACL_TYPE_DEFAULT: 272 case ACL_TYPE_DEFAULT:
278 name = POSIX_ACL_XATTR_DEFAULT; 273 name = POSIX_ACL_XATTR_DEFAULT;
279 p_acl = &reiserfs_i->i_acl_default; 274 p_acl = &reiserfs_i->i_acl_default;
280 if (!S_ISDIR (inode->i_mode)) 275 if (!S_ISDIR(inode->i_mode))
281 return acl ? -EACCES : 0; 276 return acl ? -EACCES : 0;
282 break; 277 break;
283 default: 278 default:
284 return -EINVAL; 279 return -EINVAL;
285 } 280 }
286 281
287 if (acl) { 282 if (acl) {
288 value = posix_acl_to_disk(acl, &size); 283 value = posix_acl_to_disk(acl, &size);
289 if (IS_ERR(value)) 284 if (IS_ERR(value))
290 return (int)PTR_ERR(value); 285 return (int)PTR_ERR(value);
291 error = reiserfs_xattr_set(inode, name, value, size, 0); 286 error = reiserfs_xattr_set(inode, name, value, size, 0);
292 } else { 287 } else {
293 error = reiserfs_xattr_del (inode, name); 288 error = reiserfs_xattr_del(inode, name);
294 if (error == -ENODATA) { 289 if (error == -ENODATA) {
295 /* This may seem odd here, but it means that the ACL was set 290 /* This may seem odd here, but it means that the ACL was set
296 * with a value representable with mode bits. If there was 291 * with a value representable with mode bits. If there was
297 * an ACL before, reiserfs_xattr_del already dirtied the inode. 292 * an ACL before, reiserfs_xattr_del already dirtied the inode.
298 */ 293 */
299 mark_inode_dirty (inode); 294 mark_inode_dirty(inode);
300 error = 0; 295 error = 0;
301 } 296 }
302 } 297 }
303 298
304 if (value) 299 if (value)
305 kfree(value); 300 kfree(value);
306 301
307 if (!error) { 302 if (!error) {
308 /* Release the old one */ 303 /* Release the old one */
309 if (!IS_ERR (*p_acl) && *p_acl) 304 if (!IS_ERR(*p_acl) && *p_acl)
310 posix_acl_release (*p_acl); 305 posix_acl_release(*p_acl);
311 306
312 if (acl == NULL) 307 if (acl == NULL)
313 *p_acl = ERR_PTR (-ENODATA); 308 *p_acl = ERR_PTR(-ENODATA);
314 else 309 else
315 *p_acl = posix_acl_dup (acl); 310 *p_acl = posix_acl_dup(acl);
316 } 311 }
317 312
318 return error; 313 return error;
319} 314}
@@ -321,192 +316,190 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
321/* dir->i_sem: down, 316/* dir->i_sem: down,
322 * inode is new and not released into the wild yet */ 317 * inode is new and not released into the wild yet */
323int 318int
324reiserfs_inherit_default_acl (struct inode *dir, struct dentry *dentry, struct inode *inode) 319reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
320 struct inode *inode)
325{ 321{
326 struct posix_acl *acl; 322 struct posix_acl *acl;
327 int err = 0; 323 int err = 0;
328 324
329 /* ACLs only get applied to files and directories */ 325 /* ACLs only get applied to files and directories */
330 if (S_ISLNK (inode->i_mode)) 326 if (S_ISLNK(inode->i_mode))
331 return 0; 327 return 0;
332 328
333 /* ACLs can only be used on "new" objects, so if it's an old object 329 /* ACLs can only be used on "new" objects, so if it's an old object
334 * there is nothing to inherit from */ 330 * there is nothing to inherit from */
335 if (get_inode_sd_version (dir) == STAT_DATA_V1) 331 if (get_inode_sd_version(dir) == STAT_DATA_V1)
336 goto apply_umask; 332 goto apply_umask;
337 333
338 /* Don't apply ACLs to objects in the .reiserfs_priv tree.. This 334 /* Don't apply ACLs to objects in the .reiserfs_priv tree.. This
339 * would be useless since permissions are ignored, and a pain because 335 * would be useless since permissions are ignored, and a pain because
340 * it introduces locking cycles */ 336 * it introduces locking cycles */
341 if (is_reiserfs_priv_object (dir)) { 337 if (is_reiserfs_priv_object(dir)) {
342 reiserfs_mark_inode_private (inode); 338 reiserfs_mark_inode_private(inode);
343 goto apply_umask; 339 goto apply_umask;
344 } 340 }
345 341
346 acl = reiserfs_get_acl (dir, ACL_TYPE_DEFAULT); 342 acl = reiserfs_get_acl(dir, ACL_TYPE_DEFAULT);
347 if (IS_ERR (acl)) { 343 if (IS_ERR(acl)) {
348 if (PTR_ERR (acl) == -ENODATA) 344 if (PTR_ERR(acl) == -ENODATA)
349 goto apply_umask; 345 goto apply_umask;
350 return PTR_ERR (acl); 346 return PTR_ERR(acl);
351 } 347 }
352 348
353 if (acl) { 349 if (acl) {
354 struct posix_acl *acl_copy; 350 struct posix_acl *acl_copy;
355 mode_t mode = inode->i_mode; 351 mode_t mode = inode->i_mode;
356 int need_acl; 352 int need_acl;
357 353
358 /* Copy the default ACL to the default ACL of a new directory */ 354 /* Copy the default ACL to the default ACL of a new directory */
359 if (S_ISDIR (inode->i_mode)) { 355 if (S_ISDIR(inode->i_mode)) {
360 err = reiserfs_set_acl (inode, ACL_TYPE_DEFAULT, acl); 356 err = reiserfs_set_acl(inode, ACL_TYPE_DEFAULT, acl);
361 if (err) 357 if (err)
362 goto cleanup; 358 goto cleanup;
363 } 359 }
364 360
365 /* Now we reconcile the new ACL and the mode, 361 /* Now we reconcile the new ACL and the mode,
366 potentially modifying both */ 362 potentially modifying both */
367 acl_copy = posix_acl_clone (acl, GFP_NOFS); 363 acl_copy = posix_acl_clone(acl, GFP_NOFS);
368 if (!acl_copy) { 364 if (!acl_copy) {
369 err = -ENOMEM; 365 err = -ENOMEM;
370 goto cleanup; 366 goto cleanup;
371 } 367 }
372 368
373 369 need_acl = posix_acl_create_masq(acl_copy, &mode);
374 need_acl = posix_acl_create_masq (acl_copy, &mode); 370 if (need_acl >= 0) {
375 if (need_acl >= 0) { 371 if (mode != inode->i_mode) {
376 if (mode != inode->i_mode) { 372 inode->i_mode = mode;
377 inode->i_mode = mode; 373 }
378 } 374
379 375 /* If we need an ACL.. */
380 /* If we need an ACL.. */ 376 if (need_acl > 0) {
381 if (need_acl > 0) { 377 err =
382 err = reiserfs_set_acl (inode, ACL_TYPE_ACCESS, acl_copy); 378 reiserfs_set_acl(inode, ACL_TYPE_ACCESS,
383 if (err) 379 acl_copy);
384 goto cleanup_copy; 380 if (err)
385 } 381 goto cleanup_copy;
386 } 382 }
387cleanup_copy: 383 }
388 posix_acl_release (acl_copy); 384 cleanup_copy:
389cleanup: 385 posix_acl_release(acl_copy);
390 posix_acl_release (acl); 386 cleanup:
391 } else { 387 posix_acl_release(acl);
392apply_umask: 388 } else {
393 /* no ACL, apply umask */ 389 apply_umask:
394 inode->i_mode &= ~current->fs->umask; 390 /* no ACL, apply umask */
395 } 391 inode->i_mode &= ~current->fs->umask;
396 392 }
397 return err; 393
394 return err;
398} 395}
399 396
400/* Looks up and caches the result of the default ACL. 397/* Looks up and caches the result of the default ACL.
401 * We do this so that we don't need to carry the xattr_sem into 398 * We do this so that we don't need to carry the xattr_sem into
402 * reiserfs_new_inode if we don't need to */ 399 * reiserfs_new_inode if we don't need to */
403int 400int reiserfs_cache_default_acl(struct inode *inode)
404reiserfs_cache_default_acl (struct inode *inode)
405{ 401{
406 int ret = 0; 402 int ret = 0;
407 if (reiserfs_posixacl (inode->i_sb) && 403 if (reiserfs_posixacl(inode->i_sb) && !is_reiserfs_priv_object(inode)) {
408 !is_reiserfs_priv_object (inode)) { 404 struct posix_acl *acl;
409 struct posix_acl *acl; 405 reiserfs_read_lock_xattr_i(inode);
410 reiserfs_read_lock_xattr_i (inode); 406 reiserfs_read_lock_xattrs(inode->i_sb);
411 reiserfs_read_lock_xattrs (inode->i_sb); 407 acl = reiserfs_get_acl(inode, ACL_TYPE_DEFAULT);
412 acl = reiserfs_get_acl (inode, ACL_TYPE_DEFAULT); 408 reiserfs_read_unlock_xattrs(inode->i_sb);
413 reiserfs_read_unlock_xattrs (inode->i_sb); 409 reiserfs_read_unlock_xattr_i(inode);
414 reiserfs_read_unlock_xattr_i (inode); 410 ret = acl ? 1 : 0;
415 ret = acl ? 1 : 0; 411 posix_acl_release(acl);
416 posix_acl_release (acl); 412 }
417 } 413
418 414 return ret;
419 return ret;
420} 415}
421 416
422int 417int reiserfs_acl_chmod(struct inode *inode)
423reiserfs_acl_chmod (struct inode *inode)
424{ 418{
425 struct posix_acl *acl, *clone; 419 struct posix_acl *acl, *clone;
426 int error; 420 int error;
427 421
428 if (S_ISLNK(inode->i_mode)) 422 if (S_ISLNK(inode->i_mode))
429 return -EOPNOTSUPP; 423 return -EOPNOTSUPP;
430 424
431 if (get_inode_sd_version (inode) == STAT_DATA_V1 || 425 if (get_inode_sd_version(inode) == STAT_DATA_V1 ||
432 !reiserfs_posixacl(inode->i_sb)) 426 !reiserfs_posixacl(inode->i_sb)) {
433 { 427 return 0;
434 return 0;
435 } 428 }
436 429
437 reiserfs_read_lock_xattrs (inode->i_sb); 430 reiserfs_read_lock_xattrs(inode->i_sb);
438 acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS); 431 acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
439 reiserfs_read_unlock_xattrs (inode->i_sb); 432 reiserfs_read_unlock_xattrs(inode->i_sb);
440 if (!acl) 433 if (!acl)
441 return 0; 434 return 0;
442 if (IS_ERR(acl)) 435 if (IS_ERR(acl))
443 return PTR_ERR(acl); 436 return PTR_ERR(acl);
444 clone = posix_acl_clone(acl, GFP_NOFS); 437 clone = posix_acl_clone(acl, GFP_NOFS);
445 posix_acl_release(acl); 438 posix_acl_release(acl);
446 if (!clone) 439 if (!clone)
447 return -ENOMEM; 440 return -ENOMEM;
448 error = posix_acl_chmod_masq(clone, inode->i_mode); 441 error = posix_acl_chmod_masq(clone, inode->i_mode);
449 if (!error) { 442 if (!error) {
450 int lock = !has_xattr_dir (inode); 443 int lock = !has_xattr_dir(inode);
451 reiserfs_write_lock_xattr_i (inode); 444 reiserfs_write_lock_xattr_i(inode);
452 if (lock) 445 if (lock)
453 reiserfs_write_lock_xattrs (inode->i_sb); 446 reiserfs_write_lock_xattrs(inode->i_sb);
454 else 447 else
455 reiserfs_read_lock_xattrs (inode->i_sb); 448 reiserfs_read_lock_xattrs(inode->i_sb);
456 error = reiserfs_set_acl(inode, ACL_TYPE_ACCESS, clone); 449 error = reiserfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
457 if (lock) 450 if (lock)
458 reiserfs_write_unlock_xattrs (inode->i_sb); 451 reiserfs_write_unlock_xattrs(inode->i_sb);
459 else 452 else
460 reiserfs_read_unlock_xattrs (inode->i_sb); 453 reiserfs_read_unlock_xattrs(inode->i_sb);
461 reiserfs_write_unlock_xattr_i (inode); 454 reiserfs_write_unlock_xattr_i(inode);
462 } 455 }
463 posix_acl_release(clone); 456 posix_acl_release(clone);
464 return error; 457 return error;
465} 458}
466 459
467static int 460static int
468posix_acl_access_get(struct inode *inode, const char *name, 461posix_acl_access_get(struct inode *inode, const char *name,
469 void *buffer, size_t size) 462 void *buffer, size_t size)
470{ 463{
471 if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS)-1) 464 if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS) - 1)
472 return -EINVAL; 465 return -EINVAL;
473 return xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size); 466 return xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
474} 467}
475 468
476static int 469static int
477posix_acl_access_set(struct inode *inode, const char *name, 470posix_acl_access_set(struct inode *inode, const char *name,
478 const void *value, size_t size, int flags) 471 const void *value, size_t size, int flags)
479{ 472{
480 if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS)-1) 473 if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS) - 1)
481 return -EINVAL; 474 return -EINVAL;
482 return xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size); 475 return xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
483} 476}
484 477
485static int 478static int posix_acl_access_del(struct inode *inode, const char *name)
486posix_acl_access_del (struct inode *inode, const char *name)
487{ 479{
488 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode); 480 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
489 struct posix_acl **acl = &reiserfs_i->i_acl_access; 481 struct posix_acl **acl = &reiserfs_i->i_acl_access;
490 if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS)-1) 482 if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS) - 1)
491 return -EINVAL; 483 return -EINVAL;
492 if (!IS_ERR (*acl) && *acl) { 484 if (!IS_ERR(*acl) && *acl) {
493 posix_acl_release (*acl); 485 posix_acl_release(*acl);
494 *acl = ERR_PTR (-ENODATA); 486 *acl = ERR_PTR(-ENODATA);
495 } 487 }
496 488
497 return 0; 489 return 0;
498} 490}
499 491
500static int 492static int
501posix_acl_access_list (struct inode *inode, const char *name, int namelen, char *out) 493posix_acl_access_list(struct inode *inode, const char *name, int namelen,
494 char *out)
502{ 495{
503 int len = namelen; 496 int len = namelen;
504 if (!reiserfs_posixacl (inode->i_sb)) 497 if (!reiserfs_posixacl(inode->i_sb))
505 return 0; 498 return 0;
506 if (out) 499 if (out)
507 memcpy (out, name, len); 500 memcpy(out, name, len);
508 501
509 return len; 502 return len;
510} 503}
511 504
512struct reiserfs_xattr_handler posix_acl_access_handler = { 505struct reiserfs_xattr_handler posix_acl_access_handler = {
@@ -518,48 +511,48 @@ struct reiserfs_xattr_handler posix_acl_access_handler = {
518}; 511};
519 512
520static int 513static int
521posix_acl_default_get (struct inode *inode, const char *name, 514posix_acl_default_get(struct inode *inode, const char *name,
522 void *buffer, size_t size) 515 void *buffer, size_t size)
523{ 516{
524 if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT)-1) 517 if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT) - 1)
525 return -EINVAL; 518 return -EINVAL;
526 return xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size); 519 return xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
527} 520}
528 521
529static int 522static int
530posix_acl_default_set(struct inode *inode, const char *name, 523posix_acl_default_set(struct inode *inode, const char *name,
531 const void *value, size_t size, int flags) 524 const void *value, size_t size, int flags)
532{ 525{
533 if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT)-1) 526 if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT) - 1)
534 return -EINVAL; 527 return -EINVAL;
535 return xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size); 528 return xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
536} 529}
537 530
538static int 531static int posix_acl_default_del(struct inode *inode, const char *name)
539posix_acl_default_del (struct inode *inode, const char *name)
540{ 532{
541 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode); 533 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
542 struct posix_acl **acl = &reiserfs_i->i_acl_default; 534 struct posix_acl **acl = &reiserfs_i->i_acl_default;
543 if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT)-1) 535 if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT) - 1)
544 return -EINVAL; 536 return -EINVAL;
545 if (!IS_ERR (*acl) && *acl) { 537 if (!IS_ERR(*acl) && *acl) {
546 posix_acl_release (*acl); 538 posix_acl_release(*acl);
547 *acl = ERR_PTR (-ENODATA); 539 *acl = ERR_PTR(-ENODATA);
548 } 540 }
549 541
550 return 0; 542 return 0;
551} 543}
552 544
553static int 545static int
554posix_acl_default_list (struct inode *inode, const char *name, int namelen, char *out) 546posix_acl_default_list(struct inode *inode, const char *name, int namelen,
547 char *out)
555{ 548{
556 int len = namelen; 549 int len = namelen;
557 if (!reiserfs_posixacl (inode->i_sb)) 550 if (!reiserfs_posixacl(inode->i_sb))
558 return 0; 551 return 0;
559 if (out) 552 if (out)
560 memcpy (out, name, len); 553 memcpy(out, name, len);
561 554
562 return len; 555 return len;
563} 556}
564 557
565struct reiserfs_xattr_handler posix_acl_default_handler = { 558struct reiserfs_xattr_handler posix_acl_default_handler = {
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-12 09:57:36 -0500