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Commit | Line | Data |
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9f107513 AL |
1 | /* |
2 | * Virtio 9p Posix callback | |
3 | * | |
4 | * Copyright IBM, Corp. 2010 | |
5 | * | |
6 | * Authors: | |
7 | * Anthony Liguori <aliguori@us.ibm.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
10 | * the COPYING file in the top-level directory. | |
11 | * | |
12 | */ | |
13 | #include "virtio.h" | |
14 | #include "virtio-9p.h" | |
c494dd6f | 15 | #include <arpa/inet.h> |
131dcb25 AL |
16 | #include <pwd.h> |
17 | #include <grp.h> | |
c494dd6f AL |
18 | #include <sys/socket.h> |
19 | #include <sys/un.h> | |
758e8e38 | 20 | #include <attr/xattr.h> |
131dcb25 AL |
21 | |
22 | static const char *rpath(FsContext *ctx, const char *path) | |
23 | { | |
24 | /* FIXME: so wrong... */ | |
25 | static char buffer[4096]; | |
26 | snprintf(buffer, sizeof(buffer), "%s/%s", ctx->fs_root, path); | |
27 | return buffer; | |
28 | } | |
29 | ||
1237ad76 VJJ |
30 | |
31 | static int local_lstat(FsContext *fs_ctx, const char *path, struct stat *stbuf) | |
131dcb25 | 32 | { |
1237ad76 VJJ |
33 | int err; |
34 | err = lstat(rpath(fs_ctx, path), stbuf); | |
35 | if (err) { | |
36 | return err; | |
37 | } | |
38 | if (fs_ctx->fs_sm == SM_MAPPED) { | |
39 | /* Actual credentials are part of extended attrs */ | |
40 | uid_t tmp_uid; | |
41 | gid_t tmp_gid; | |
42 | mode_t tmp_mode; | |
43 | dev_t tmp_dev; | |
44 | if (getxattr(rpath(fs_ctx, path), "user.virtfs.uid", &tmp_uid, | |
45 | sizeof(uid_t)) > 0) { | |
46 | stbuf->st_uid = tmp_uid; | |
47 | } | |
48 | if (getxattr(rpath(fs_ctx, path), "user.virtfs.gid", &tmp_gid, | |
49 | sizeof(gid_t)) > 0) { | |
50 | stbuf->st_gid = tmp_gid; | |
51 | } | |
52 | if (getxattr(rpath(fs_ctx, path), "user.virtfs.mode", &tmp_mode, | |
53 | sizeof(mode_t)) > 0) { | |
54 | stbuf->st_mode = tmp_mode; | |
55 | } | |
56 | if (getxattr(rpath(fs_ctx, path), "user.virtfs.rdev", &tmp_dev, | |
57 | sizeof(dev_t)) > 0) { | |
58 | stbuf->st_rdev = tmp_dev; | |
59 | } | |
60 | } | |
61 | return err; | |
131dcb25 AL |
62 | } |
63 | ||
758e8e38 | 64 | static int local_set_xattr(const char *path, FsCred *credp) |
131dcb25 | 65 | { |
758e8e38 VJJ |
66 | int err; |
67 | if (credp->fc_uid != -1) { | |
68 | err = setxattr(path, "user.virtfs.uid", &credp->fc_uid, sizeof(uid_t), | |
69 | 0); | |
70 | if (err) { | |
71 | return err; | |
72 | } | |
131dcb25 | 73 | } |
758e8e38 VJJ |
74 | if (credp->fc_gid != -1) { |
75 | err = setxattr(path, "user.virtfs.gid", &credp->fc_gid, sizeof(gid_t), | |
76 | 0); | |
77 | if (err) { | |
78 | return err; | |
79 | } | |
131dcb25 | 80 | } |
758e8e38 VJJ |
81 | if (credp->fc_mode != -1) { |
82 | err = setxattr(path, "user.virtfs.mode", &credp->fc_mode, | |
83 | sizeof(mode_t), 0); | |
84 | if (err) { | |
85 | return err; | |
86 | } | |
131dcb25 | 87 | } |
758e8e38 VJJ |
88 | if (credp->fc_rdev != -1) { |
89 | err = setxattr(path, "user.virtfs.rdev", &credp->fc_rdev, | |
90 | sizeof(dev_t), 0); | |
91 | if (err) { | |
92 | return err; | |
93 | } | |
131dcb25 | 94 | } |
131dcb25 AL |
95 | return 0; |
96 | } | |
97 | ||
4750a96f VJJ |
98 | static int local_post_create_passthrough(FsContext *fs_ctx, const char *path, |
99 | FsCred *credp) | |
100 | { | |
101 | if (chmod(rpath(fs_ctx, path), credp->fc_mode & 07777) < 0) { | |
102 | return -1; | |
103 | } | |
104 | if (chown(rpath(fs_ctx, path), credp->fc_uid, credp->fc_gid) < 0) { | |
12848bfc AK |
105 | /* |
106 | * If we fail to change ownership and if we are | |
107 | * using security model none. Ignore the error | |
108 | */ | |
109 | if (fs_ctx->fs_sm != SM_NONE) { | |
110 | return -1; | |
111 | } | |
4750a96f VJJ |
112 | } |
113 | return 0; | |
114 | } | |
115 | ||
879c2813 VJJ |
116 | static ssize_t local_readlink(FsContext *fs_ctx, const char *path, |
117 | char *buf, size_t bufsz) | |
131dcb25 | 118 | { |
879c2813 VJJ |
119 | ssize_t tsize = -1; |
120 | if (fs_ctx->fs_sm == SM_MAPPED) { | |
121 | int fd; | |
122 | fd = open(rpath(fs_ctx, path), O_RDONLY); | |
123 | if (fd == -1) { | |
124 | return -1; | |
125 | } | |
126 | do { | |
127 | tsize = read(fd, (void *)buf, bufsz); | |
128 | } while (tsize == -1 && errno == EINTR); | |
129 | close(fd); | |
130 | return tsize; | |
12848bfc AK |
131 | } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) || |
132 | (fs_ctx->fs_sm == SM_NONE)) { | |
879c2813 VJJ |
133 | tsize = readlink(rpath(fs_ctx, path), buf, bufsz); |
134 | } | |
135 | return tsize; | |
131dcb25 AL |
136 | } |
137 | ||
138 | static int local_close(FsContext *ctx, int fd) | |
139 | { | |
140 | return close(fd); | |
141 | } | |
142 | ||
143 | static int local_closedir(FsContext *ctx, DIR *dir) | |
144 | { | |
145 | return closedir(dir); | |
146 | } | |
9f107513 | 147 | |
a6568fe2 AL |
148 | static int local_open(FsContext *ctx, const char *path, int flags) |
149 | { | |
150 | return open(rpath(ctx, path), flags); | |
151 | } | |
152 | ||
153 | static DIR *local_opendir(FsContext *ctx, const char *path) | |
154 | { | |
155 | return opendir(rpath(ctx, path)); | |
156 | } | |
157 | ||
a9231555 AL |
158 | static void local_rewinddir(FsContext *ctx, DIR *dir) |
159 | { | |
160 | return rewinddir(dir); | |
161 | } | |
162 | ||
163 | static off_t local_telldir(FsContext *ctx, DIR *dir) | |
164 | { | |
165 | return telldir(dir); | |
166 | } | |
167 | ||
168 | static struct dirent *local_readdir(FsContext *ctx, DIR *dir) | |
169 | { | |
170 | return readdir(dir); | |
171 | } | |
172 | ||
173 | static void local_seekdir(FsContext *ctx, DIR *dir, off_t off) | |
174 | { | |
175 | return seekdir(dir, off); | |
176 | } | |
177 | ||
178 | static ssize_t local_readv(FsContext *ctx, int fd, const struct iovec *iov, | |
179 | int iovcnt) | |
180 | { | |
181 | return readv(fd, iov, iovcnt); | |
182 | } | |
183 | ||
184 | static off_t local_lseek(FsContext *ctx, int fd, off_t offset, int whence) | |
185 | { | |
186 | return lseek(fd, offset, whence); | |
187 | } | |
188 | ||
8449360c AL |
189 | static ssize_t local_writev(FsContext *ctx, int fd, const struct iovec *iov, |
190 | int iovcnt) | |
191 | { | |
192 | return writev(fd, iov, iovcnt); | |
193 | } | |
194 | ||
e95ead32 | 195 | static int local_chmod(FsContext *fs_ctx, const char *path, FsCred *credp) |
c494dd6f | 196 | { |
e95ead32 VJJ |
197 | if (fs_ctx->fs_sm == SM_MAPPED) { |
198 | return local_set_xattr(rpath(fs_ctx, path), credp); | |
12848bfc AK |
199 | } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) || |
200 | (fs_ctx->fs_sm == SM_NONE)) { | |
e95ead32 VJJ |
201 | return chmod(rpath(fs_ctx, path), credp->fc_mode); |
202 | } | |
203 | return -1; | |
c494dd6f AL |
204 | } |
205 | ||
1c293312 | 206 | static int local_mknod(FsContext *fs_ctx, const char *path, FsCred *credp) |
c494dd6f | 207 | { |
1c293312 VJJ |
208 | int err = -1; |
209 | int serrno = 0; | |
210 | ||
211 | /* Determine the security model */ | |
212 | if (fs_ctx->fs_sm == SM_MAPPED) { | |
213 | err = mknod(rpath(fs_ctx, path), SM_LOCAL_MODE_BITS|S_IFREG, 0); | |
214 | if (err == -1) { | |
215 | return err; | |
216 | } | |
217 | local_set_xattr(rpath(fs_ctx, path), credp); | |
218 | if (err == -1) { | |
219 | serrno = errno; | |
220 | goto err_end; | |
221 | } | |
12848bfc AK |
222 | } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) || |
223 | (fs_ctx->fs_sm == SM_NONE)) { | |
1c293312 VJJ |
224 | err = mknod(rpath(fs_ctx, path), credp->fc_mode, credp->fc_rdev); |
225 | if (err == -1) { | |
226 | return err; | |
227 | } | |
228 | err = local_post_create_passthrough(fs_ctx, path, credp); | |
229 | if (err == -1) { | |
230 | serrno = errno; | |
231 | goto err_end; | |
232 | } | |
233 | } | |
234 | return err; | |
235 | ||
236 | err_end: | |
237 | remove(rpath(fs_ctx, path)); | |
238 | errno = serrno; | |
239 | return err; | |
c494dd6f AL |
240 | } |
241 | ||
00ec5c37 | 242 | static int local_mkdir(FsContext *fs_ctx, const char *path, FsCred *credp) |
c494dd6f | 243 | { |
00ec5c37 VJJ |
244 | int err = -1; |
245 | int serrno = 0; | |
246 | ||
247 | /* Determine the security model */ | |
248 | if (fs_ctx->fs_sm == SM_MAPPED) { | |
249 | err = mkdir(rpath(fs_ctx, path), SM_LOCAL_DIR_MODE_BITS); | |
250 | if (err == -1) { | |
251 | return err; | |
252 | } | |
253 | credp->fc_mode = credp->fc_mode|S_IFDIR; | |
254 | err = local_set_xattr(rpath(fs_ctx, path), credp); | |
255 | if (err == -1) { | |
256 | serrno = errno; | |
257 | goto err_end; | |
258 | } | |
12848bfc AK |
259 | } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) || |
260 | (fs_ctx->fs_sm == SM_NONE)) { | |
00ec5c37 VJJ |
261 | err = mkdir(rpath(fs_ctx, path), credp->fc_mode); |
262 | if (err == -1) { | |
263 | return err; | |
264 | } | |
265 | err = local_post_create_passthrough(fs_ctx, path, credp); | |
266 | if (err == -1) { | |
267 | serrno = errno; | |
268 | goto err_end; | |
269 | } | |
270 | } | |
271 | return err; | |
272 | ||
273 | err_end: | |
274 | remove(rpath(fs_ctx, path)); | |
275 | errno = serrno; | |
276 | return err; | |
c494dd6f AL |
277 | } |
278 | ||
1237ad76 | 279 | static int local_fstat(FsContext *fs_ctx, int fd, struct stat *stbuf) |
c494dd6f | 280 | { |
1237ad76 VJJ |
281 | int err; |
282 | err = fstat(fd, stbuf); | |
283 | if (err) { | |
284 | return err; | |
285 | } | |
286 | if (fs_ctx->fs_sm == SM_MAPPED) { | |
287 | /* Actual credentials are part of extended attrs */ | |
288 | uid_t tmp_uid; | |
289 | gid_t tmp_gid; | |
290 | mode_t tmp_mode; | |
291 | dev_t tmp_dev; | |
292 | ||
293 | if (fgetxattr(fd, "user.virtfs.uid", &tmp_uid, sizeof(uid_t)) > 0) { | |
294 | stbuf->st_uid = tmp_uid; | |
295 | } | |
296 | if (fgetxattr(fd, "user.virtfs.gid", &tmp_gid, sizeof(gid_t)) > 0) { | |
297 | stbuf->st_gid = tmp_gid; | |
298 | } | |
299 | if (fgetxattr(fd, "user.virtfs.mode", &tmp_mode, sizeof(mode_t)) > 0) { | |
300 | stbuf->st_mode = tmp_mode; | |
301 | } | |
302 | if (fgetxattr(fd, "user.virtfs.rdev", &tmp_dev, sizeof(dev_t)) > 0) { | |
303 | stbuf->st_rdev = tmp_dev; | |
304 | } | |
305 | } | |
306 | return err; | |
c494dd6f AL |
307 | } |
308 | ||
4750a96f VJJ |
309 | static int local_open2(FsContext *fs_ctx, const char *path, int flags, |
310 | FsCred *credp) | |
c494dd6f | 311 | { |
4750a96f VJJ |
312 | int fd = -1; |
313 | int err = -1; | |
314 | int serrno = 0; | |
315 | ||
316 | /* Determine the security model */ | |
317 | if (fs_ctx->fs_sm == SM_MAPPED) { | |
318 | fd = open(rpath(fs_ctx, path), flags, SM_LOCAL_MODE_BITS); | |
319 | if (fd == -1) { | |
320 | return fd; | |
321 | } | |
322 | credp->fc_mode = credp->fc_mode|S_IFREG; | |
323 | /* Set cleint credentials in xattr */ | |
324 | err = local_set_xattr(rpath(fs_ctx, path), credp); | |
325 | if (err == -1) { | |
326 | serrno = errno; | |
327 | goto err_end; | |
328 | } | |
12848bfc AK |
329 | } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) || |
330 | (fs_ctx->fs_sm == SM_NONE)) { | |
4750a96f VJJ |
331 | fd = open(rpath(fs_ctx, path), flags, credp->fc_mode); |
332 | if (fd == -1) { | |
333 | return fd; | |
334 | } | |
335 | err = local_post_create_passthrough(fs_ctx, path, credp); | |
336 | if (err == -1) { | |
337 | serrno = errno; | |
338 | goto err_end; | |
339 | } | |
340 | } | |
341 | return fd; | |
342 | ||
343 | err_end: | |
344 | close(fd); | |
345 | remove(rpath(fs_ctx, path)); | |
346 | errno = serrno; | |
347 | return err; | |
c494dd6f AL |
348 | } |
349 | ||
758e8e38 | 350 | |
879c2813 VJJ |
351 | static int local_symlink(FsContext *fs_ctx, const char *oldpath, |
352 | const char *newpath, FsCred *credp) | |
c494dd6f | 353 | { |
879c2813 VJJ |
354 | int err = -1; |
355 | int serrno = 0; | |
356 | ||
357 | /* Determine the security model */ | |
358 | if (fs_ctx->fs_sm == SM_MAPPED) { | |
359 | int fd; | |
360 | ssize_t oldpath_size, write_size; | |
361 | fd = open(rpath(fs_ctx, newpath), O_CREAT|O_EXCL|O_RDWR, | |
362 | SM_LOCAL_MODE_BITS); | |
363 | if (fd == -1) { | |
364 | return fd; | |
365 | } | |
366 | /* Write the oldpath (target) to the file. */ | |
367 | oldpath_size = strlen(oldpath) + 1; | |
368 | do { | |
369 | write_size = write(fd, (void *)oldpath, oldpath_size); | |
370 | } while (write_size == -1 && errno == EINTR); | |
371 | ||
372 | if (write_size != oldpath_size) { | |
373 | serrno = errno; | |
374 | close(fd); | |
375 | err = -1; | |
376 | goto err_end; | |
377 | } | |
378 | close(fd); | |
379 | /* Set cleint credentials in symlink's xattr */ | |
380 | credp->fc_mode = credp->fc_mode|S_IFLNK; | |
381 | err = local_set_xattr(rpath(fs_ctx, newpath), credp); | |
382 | if (err == -1) { | |
383 | serrno = errno; | |
384 | goto err_end; | |
385 | } | |
12848bfc AK |
386 | } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) || |
387 | (fs_ctx->fs_sm == SM_NONE)) { | |
879c2813 VJJ |
388 | err = symlink(oldpath, rpath(fs_ctx, newpath)); |
389 | if (err) { | |
390 | return err; | |
391 | } | |
392 | err = lchown(rpath(fs_ctx, newpath), credp->fc_uid, credp->fc_gid); | |
393 | if (err == -1) { | |
12848bfc AK |
394 | /* |
395 | * If we fail to change ownership and if we are | |
396 | * using security model none. Ignore the error | |
397 | */ | |
398 | if (fs_ctx->fs_sm != SM_NONE) { | |
399 | serrno = errno; | |
400 | goto err_end; | |
401 | } else | |
402 | err = 0; | |
879c2813 VJJ |
403 | } |
404 | } | |
405 | return err; | |
406 | ||
407 | err_end: | |
408 | remove(rpath(fs_ctx, newpath)); | |
409 | errno = serrno; | |
410 | return err; | |
c494dd6f AL |
411 | } |
412 | ||
413 | static int local_link(FsContext *ctx, const char *oldpath, const char *newpath) | |
414 | { | |
415 | char *tmp = qemu_strdup(rpath(ctx, oldpath)); | |
416 | int err, serrno = 0; | |
417 | ||
418 | if (tmp == NULL) { | |
419 | return -ENOMEM; | |
420 | } | |
421 | ||
422 | err = link(tmp, rpath(ctx, newpath)); | |
423 | if (err == -1) { | |
424 | serrno = errno; | |
425 | } | |
426 | ||
427 | qemu_free(tmp); | |
428 | ||
429 | if (err == -1) { | |
430 | errno = serrno; | |
431 | } | |
432 | ||
433 | return err; | |
434 | } | |
435 | ||
8cf89e00 AL |
436 | static int local_truncate(FsContext *ctx, const char *path, off_t size) |
437 | { | |
438 | return truncate(rpath(ctx, path), size); | |
439 | } | |
440 | ||
441 | static int local_rename(FsContext *ctx, const char *oldpath, | |
442 | const char *newpath) | |
443 | { | |
444 | char *tmp; | |
445 | int err; | |
446 | ||
447 | tmp = qemu_strdup(rpath(ctx, oldpath)); | |
8cf89e00 AL |
448 | |
449 | err = rename(tmp, rpath(ctx, newpath)); | |
450 | if (err == -1) { | |
451 | int serrno = errno; | |
452 | qemu_free(tmp); | |
453 | errno = serrno; | |
454 | } else { | |
455 | qemu_free(tmp); | |
456 | } | |
457 | ||
458 | return err; | |
459 | ||
460 | } | |
461 | ||
f7613bee | 462 | static int local_chown(FsContext *fs_ctx, const char *path, FsCred *credp) |
8cf89e00 | 463 | { |
c79ce737 SK |
464 | if ((credp->fc_uid == -1 && credp->fc_gid == -1) || |
465 | (fs_ctx->fs_sm == SM_PASSTHROUGH)) { | |
466 | return lchown(rpath(fs_ctx, path), credp->fc_uid, credp->fc_gid); | |
467 | } else if (fs_ctx->fs_sm == SM_MAPPED) { | |
f7613bee | 468 | return local_set_xattr(rpath(fs_ctx, path), credp); |
12848bfc AK |
469 | } else if ((fs_ctx->fs_sm == SM_PASSTHROUGH) || |
470 | (fs_ctx->fs_sm == SM_NONE)) { | |
f7613bee VJJ |
471 | return lchown(rpath(fs_ctx, path), credp->fc_uid, credp->fc_gid); |
472 | } | |
473 | return -1; | |
8cf89e00 AL |
474 | } |
475 | ||
74bc02b2 MK |
476 | static int local_utimensat(FsContext *s, const char *path, |
477 | const struct timespec *buf) | |
8cf89e00 | 478 | { |
74bc02b2 | 479 | return utimensat(AT_FDCWD, rpath(s, path), buf, AT_SYMLINK_NOFOLLOW); |
8cf89e00 AL |
480 | } |
481 | ||
5bae1900 AL |
482 | static int local_remove(FsContext *ctx, const char *path) |
483 | { | |
484 | return remove(rpath(ctx, path)); | |
485 | } | |
486 | ||
8cf89e00 AL |
487 | static int local_fsync(FsContext *ctx, int fd) |
488 | { | |
489 | return fsync(fd); | |
490 | } | |
491 | ||
be940c87 MK |
492 | static int local_statfs(FsContext *s, const char *path, struct statfs *stbuf) |
493 | { | |
494 | return statfs(rpath(s, path), stbuf); | |
495 | } | |
496 | ||
fa32ef88 AK |
497 | static ssize_t local_lgetxattr(FsContext *ctx, const char *path, |
498 | const char *name, void *value, size_t size) | |
499 | { | |
61b6c499 AK |
500 | if ((ctx->fs_sm == SM_MAPPED) && |
501 | (strncmp(name, "user.virtfs.", 12) == 0)) { | |
502 | /* | |
503 | * Don't allow fetch of user.virtfs namesapce | |
504 | * in case of mapped security | |
505 | */ | |
506 | errno = ENOATTR; | |
507 | return -1; | |
508 | } | |
509 | ||
fa32ef88 AK |
510 | return lgetxattr(rpath(ctx, path), name, value, size); |
511 | } | |
512 | ||
513 | static ssize_t local_llistxattr(FsContext *ctx, const char *path, | |
514 | void *value, size_t size) | |
515 | { | |
61b6c499 AK |
516 | ssize_t retval; |
517 | ssize_t actual_len = 0; | |
518 | char *orig_value, *orig_value_start; | |
519 | char *temp_value, *temp_value_start; | |
520 | ssize_t xattr_len, parsed_len = 0, attr_len; | |
521 | ||
522 | if (ctx->fs_sm != SM_MAPPED) { | |
523 | return llistxattr(rpath(ctx, path), value, size); | |
524 | } | |
525 | ||
526 | /* Get the actual len */ | |
527 | xattr_len = llistxattr(rpath(ctx, path), value, 0); | |
528 | ||
529 | /* Now fetch the xattr and find the actual size */ | |
530 | orig_value = qemu_malloc(xattr_len); | |
531 | xattr_len = llistxattr(rpath(ctx, path), orig_value, xattr_len); | |
532 | ||
533 | /* | |
534 | * For mapped security model drop user.virtfs namespace | |
535 | * from the list | |
536 | */ | |
537 | temp_value = qemu_mallocz(xattr_len); | |
538 | temp_value_start = temp_value; | |
539 | orig_value_start = orig_value; | |
540 | while (xattr_len > parsed_len) { | |
541 | attr_len = strlen(orig_value) + 1; | |
542 | if (strncmp(orig_value, "user.virtfs.", 12) != 0) { | |
543 | /* Copy this entry */ | |
544 | strcat(temp_value, orig_value); | |
545 | temp_value += attr_len; | |
546 | actual_len += attr_len; | |
547 | } | |
548 | parsed_len += attr_len; | |
549 | orig_value += attr_len; | |
550 | } | |
551 | if (!size) { | |
552 | retval = actual_len; | |
553 | goto out; | |
554 | } else if (size >= actual_len) { | |
555 | /* now copy the parsed attribute list back */ | |
556 | memset(value, 0, size); | |
557 | memcpy(value, temp_value_start, actual_len); | |
558 | retval = actual_len; | |
559 | goto out; | |
560 | } | |
561 | errno = ERANGE; | |
562 | retval = -1; | |
563 | out: | |
564 | qemu_free(orig_value_start); | |
565 | qemu_free(temp_value_start); | |
566 | return retval; | |
fa32ef88 AK |
567 | } |
568 | ||
10b468bd AK |
569 | static int local_lsetxattr(FsContext *ctx, const char *path, const char *name, |
570 | void *value, size_t size, int flags) | |
571 | { | |
61b6c499 AK |
572 | if ((ctx->fs_sm == SM_MAPPED) && |
573 | (strncmp(name, "user.virtfs.", 12) == 0)) { | |
574 | /* | |
575 | * Don't allow fetch of user.virtfs namesapce | |
576 | * in case of mapped security | |
577 | */ | |
578 | errno = EACCES; | |
579 | return -1; | |
580 | } | |
10b468bd AK |
581 | return lsetxattr(rpath(ctx, path), name, value, size, flags); |
582 | } | |
583 | ||
9f107513 | 584 | FileOperations local_ops = { |
131dcb25 | 585 | .lstat = local_lstat, |
131dcb25 AL |
586 | .readlink = local_readlink, |
587 | .close = local_close, | |
588 | .closedir = local_closedir, | |
a6568fe2 AL |
589 | .open = local_open, |
590 | .opendir = local_opendir, | |
a9231555 AL |
591 | .rewinddir = local_rewinddir, |
592 | .telldir = local_telldir, | |
593 | .readdir = local_readdir, | |
594 | .seekdir = local_seekdir, | |
595 | .readv = local_readv, | |
596 | .lseek = local_lseek, | |
8449360c | 597 | .writev = local_writev, |
c494dd6f AL |
598 | .chmod = local_chmod, |
599 | .mknod = local_mknod, | |
c494dd6f AL |
600 | .mkdir = local_mkdir, |
601 | .fstat = local_fstat, | |
602 | .open2 = local_open2, | |
603 | .symlink = local_symlink, | |
604 | .link = local_link, | |
8cf89e00 AL |
605 | .truncate = local_truncate, |
606 | .rename = local_rename, | |
607 | .chown = local_chown, | |
74bc02b2 | 608 | .utimensat = local_utimensat, |
5bae1900 | 609 | .remove = local_remove, |
8cf89e00 | 610 | .fsync = local_fsync, |
be940c87 | 611 | .statfs = local_statfs, |
fa32ef88 AK |
612 | .lgetxattr = local_lgetxattr, |
613 | .llistxattr = local_llistxattr, | |
10b468bd | 614 | .lsetxattr = local_lsetxattr, |
9f107513 | 615 | }; |