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Commit | Line | Data |
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959ef981 | 1 | // SPDX-License-Identifier: GPL-2.0 |
57c9fccb | 2 | /* |
da23017d NS |
3 | * Copyright (c) 2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
57c9fccb NS |
5 | */ |
6 | ||
6b803e5a | 7 | #include "libxfs.h" |
57c9fccb NS |
8 | #include "command.h" |
9 | #include "attrset.h" | |
10 | #include "io.h" | |
11 | #include "output.h" | |
12 | #include "type.h" | |
13 | #include "init.h" | |
501031ab CH |
14 | #include "fprint.h" |
15 | #include "faddr.h" | |
16 | #include "field.h" | |
57c9fccb NS |
17 | #include "inode.h" |
18 | #include "malloc.h" | |
a392fd5a | 19 | #include <sys/xattr.h> |
9b4c9c60 | 20 | #include "libfrog/fsproperties.h" |
dfcdf16c | 21 | #include "libxfs/listxattr.h" |
57c9fccb | 22 | |
dfcdf16c | 23 | static int attr_list_f(int argc, char **argv); |
9b4c9c60 | 24 | static int attr_get_f(int argc, char **argv); |
57c9fccb NS |
25 | static int attr_set_f(int argc, char **argv); |
26 | static int attr_remove_f(int argc, char **argv); | |
dfcdf16c DW |
27 | |
28 | static void attrlist_help(void); | |
9b4c9c60 | 29 | static void attrget_help(void); |
57c9fccb NS |
30 | static void attrset_help(void); |
31 | ||
dfcdf16c DW |
32 | static const cmdinfo_t attr_list_cmd = |
33 | { "attr_list", "alist", attr_list_f, 0, -1, 0, | |
34 | N_("[-r|-s|-u|-p|-Z] [-v]"), | |
35 | N_("list attributes on the current inode"), attrlist_help }; | |
9b4c9c60 DW |
36 | static const cmdinfo_t attr_get_cmd = |
37 | { "attr_get", "aget", attr_get_f, 1, -1, 0, | |
38 | N_("[-r|-s|-u|-p|-Z] name"), | |
39 | N_("get the named attribute on the current inode"), attrget_help }; | |
57c9fccb NS |
40 | static const cmdinfo_t attr_set_cmd = |
41 | { "attr_set", "aset", attr_set_f, 1, -1, 0, | |
9b4c9c60 | 42 | N_("[-r|-s|-u|-p|-Z] [-n] [-R|-C] [-v n] name"), |
9ee7055c | 43 | N_("set the named attribute on the current inode"), attrset_help }; |
57c9fccb NS |
44 | static const cmdinfo_t attr_remove_cmd = |
45 | { "attr_remove", "aremove", attr_remove_f, 1, -1, 0, | |
9b4c9c60 | 46 | N_("[-r|-s|-u|-p|-Z] [-n] name"), |
9ee7055c | 47 | N_("remove the named attribute from the current inode"), attrset_help }; |
57c9fccb | 48 | |
dfcdf16c DW |
49 | static void |
50 | attrlist_help(void) | |
51 | { | |
52 | dbprintf(_( | |
53 | "\n" | |
54 | " The attr_list command provide interfaces for listing all extended attributes\n" | |
55 | " attached to an inode.\n" | |
56 | " There are 4 namespace flags:\n" | |
57 | " -r -- 'root'\n" | |
58 | " -u -- 'user' (default)\n" | |
59 | " -s -- 'secure'\n" | |
60 | " -p -- 'parent'\n" | |
61 | " -Z -- fs property\n" | |
62 | "\n" | |
63 | " -v -- print the value of the attributes\n" | |
64 | "\n")); | |
65 | } | |
66 | ||
9b4c9c60 DW |
67 | static void |
68 | attrget_help(void) | |
69 | { | |
70 | dbprintf(_( | |
71 | "\n" | |
72 | " The attr_get command provide interfaces for retrieving the values of extended\n" | |
73 | " attributes of a file. This command requires attribute names to be specified.\n" | |
74 | " There are 4 namespace flags:\n" | |
75 | " -r -- 'root'\n" | |
76 | " -u -- 'user' (default)\n" | |
77 | " -s -- 'secure'\n" | |
78 | " -p -- 'parent'\n" | |
79 | " -Z -- fs property\n" | |
80 | "\n")); | |
81 | } | |
82 | ||
57c9fccb NS |
83 | static void |
84 | attrset_help(void) | |
85 | { | |
9ee7055c | 86 | dbprintf(_( |
57c9fccb NS |
87 | "\n" |
88 | " The 'attr_set' and 'attr_remove' commands provide interfaces for debugging\n" | |
89 | " the extended attribute allocation and removal code.\n" | |
90 | " Both commands require an attribute name to be specified, and the attr_set\n" | |
91 | " command allows an optional value length (-v) to be provided as well.\n" | |
92 | " There are 4 namespace flags:\n" | |
93 | " -r -- 'root'\n" | |
94 | " -u -- 'user' (default)\n" | |
95 | " -s -- 'secure'\n" | |
e65a67fb | 96 | " -p -- 'parent'\n" |
9b4c9c60 | 97 | " -Z -- fs property\n" |
57c9fccb | 98 | "\n" |
6239071d | 99 | " For attr_set, these options further define the type of set operation:\n" |
57c9fccb NS |
100 | " -C -- 'create' - create attribute, fail if it already exists\n" |
101 | " -R -- 'replace' - replace attribute, fail if it does not exist\n" | |
9b4c9c60 DW |
102 | "\n" |
103 | " If the attribute value is a string, it can be specified after the\n" | |
104 | " attribute name.\n" | |
105 | "\n" | |
6239071d | 106 | " The backward compatibility mode 'noattr2' can be emulated (-n) also.\n" |
9ee7055c | 107 | "\n")); |
57c9fccb NS |
108 | } |
109 | ||
110 | void | |
111 | attrset_init(void) | |
112 | { | |
113 | if (!expert_mode) | |
114 | return; | |
115 | ||
dfcdf16c | 116 | add_command(&attr_list_cmd); |
9b4c9c60 | 117 | add_command(&attr_get_cmd); |
57c9fccb NS |
118 | add_command(&attr_set_cmd); |
119 | add_command(&attr_remove_cmd); | |
120 | } | |
121 | ||
e65a67fb DW |
122 | static unsigned char * |
123 | get_buf_from_file( | |
124 | const char *fname, | |
125 | size_t bufsize, | |
126 | int *namelen) | |
127 | { | |
128 | FILE *fp; | |
129 | unsigned char *buf; | |
130 | size_t sz; | |
131 | ||
132 | buf = malloc(bufsize + 1); | |
133 | if (!buf) { | |
134 | perror("malloc"); | |
135 | return NULL; | |
136 | } | |
137 | ||
138 | fp = fopen(fname, "r"); | |
139 | if (!fp) { | |
140 | perror(fname); | |
141 | goto out_free; | |
142 | } | |
143 | ||
144 | sz = fread(buf, sizeof(char), bufsize, fp); | |
145 | if (sz == 0) { | |
146 | printf("%s: Could not read anything from file\n", fname); | |
147 | goto out_fp; | |
148 | } | |
149 | ||
150 | fclose(fp); | |
151 | ||
152 | *namelen = sz; | |
153 | return buf; | |
154 | out_fp: | |
155 | fclose(fp); | |
156 | out_free: | |
157 | free(buf); | |
158 | return NULL; | |
159 | } | |
160 | ||
161 | #define LIBXFS_ATTR_NS (LIBXFS_ATTR_SECURE | \ | |
162 | LIBXFS_ATTR_ROOT | \ | |
163 | LIBXFS_ATTR_PARENT) | |
164 | ||
9b4c9c60 DW |
165 | static bool |
166 | adjust_fsprop_attr_name( | |
167 | struct xfs_da_args *args, | |
168 | bool *free_name) | |
169 | { | |
170 | const char *o = (const char *)args->name; | |
171 | char *p; | |
172 | int ret; | |
173 | ||
174 | if ((args->attr_filter & LIBXFS_ATTR_NS) != LIBXFS_ATTR_ROOT) { | |
175 | dbprintf(_("fs properties must be ATTR_ROOT\n")); | |
176 | return false; | |
177 | } | |
178 | ||
179 | ret = fsprop_name_to_attr_name(o, &p); | |
180 | if (ret < 0) { | |
181 | dbprintf(_("could not allocate fs property name string\n")); | |
182 | return false; | |
183 | } | |
184 | args->namelen = ret; | |
185 | args->name = (const uint8_t *)p; | |
186 | ||
187 | if (*free_name) | |
188 | free((void *)o); | |
189 | *free_name = true; | |
190 | ||
191 | if (args->namelen > MAXNAMELEN) { | |
192 | dbprintf(_("%s: name too long\n"), args->name); | |
193 | return false; | |
194 | } | |
195 | ||
196 | if (args->valuelen > ATTR_MAX_VALUELEN) { | |
197 | dbprintf(_("%s: value too long\n"), args->name); | |
198 | return false; | |
199 | } | |
200 | ||
201 | return true; | |
202 | } | |
203 | ||
204 | static void | |
205 | print_fsprop( | |
206 | struct xfs_da_args *args) | |
207 | { | |
208 | const char *p = | |
209 | attr_name_to_fsprop_name((const char *)args->name); | |
210 | ||
211 | if (p) | |
212 | printf("%s=%.*s\n", p, args->valuelen, (char *)args->value); | |
213 | else | |
214 | fprintf(stderr, _("%s: not a fs property?\n"), args->name); | |
215 | } | |
216 | ||
57c9fccb NS |
217 | static int |
218 | attr_set_f( | |
b8e89b44 CH |
219 | int argc, |
220 | char **argv) | |
57c9fccb | 221 | { |
28488a35 DW |
222 | struct xfs_da_args args = { |
223 | .geo = mp->m_attr_geo, | |
224 | .whichfork = XFS_ATTR_FORK, | |
225 | .op_flags = XFS_DA_OP_OKNOENT, | |
226 | }; | |
8e9a788f | 227 | char *sp; |
e65a67fb DW |
228 | char *name_from_file = NULL; |
229 | char *value_from_file = NULL; | |
9b4c9c60 | 230 | bool free_name = false; |
8f07219c | 231 | enum xfs_attr_update op = XFS_ATTRUPDATE_UPSERT; |
9b4c9c60 | 232 | bool fsprop = false; |
8e9a788f | 233 | int c; |
361af16f | 234 | int error; |
57c9fccb NS |
235 | |
236 | if (cur_typ == NULL) { | |
9ee7055c | 237 | dbprintf(_("no current type\n")); |
57c9fccb NS |
238 | return 0; |
239 | } | |
240 | if (cur_typ->typnm != TYP_INODE) { | |
9ee7055c | 241 | dbprintf(_("current type is not inode\n")); |
57c9fccb NS |
242 | return 0; |
243 | } | |
244 | ||
9b4c9c60 | 245 | while ((c = getopt(argc, argv, "ruspCRnN:v:V:Z")) != EOF) { |
57c9fccb NS |
246 | switch (c) { |
247 | /* namespaces */ | |
9b4c9c60 DW |
248 | case 'Z': |
249 | fsprop = true; | |
250 | fallthrough; | |
57c9fccb | 251 | case 'r': |
e65a67fb | 252 | args.attr_filter &= ~LIBXFS_ATTR_NS; |
a392fd5a | 253 | args.attr_filter |= LIBXFS_ATTR_ROOT; |
57c9fccb NS |
254 | break; |
255 | case 'u': | |
e65a67fb | 256 | args.attr_filter &= ~LIBXFS_ATTR_NS; |
57c9fccb NS |
257 | break; |
258 | case 's': | |
e65a67fb | 259 | args.attr_filter &= ~LIBXFS_ATTR_NS; |
a392fd5a | 260 | args.attr_filter |= LIBXFS_ATTR_SECURE; |
e65a67fb DW |
261 | break; |
262 | case 'p': | |
263 | args.attr_filter &= ~LIBXFS_ATTR_NS; | |
264 | args.attr_filter |= XFS_ATTR_PARENT; | |
57c9fccb NS |
265 | break; |
266 | ||
267 | /* modifiers */ | |
268 | case 'C': | |
d55ab835 | 269 | op = XFS_ATTRUPDATE_CREATE; |
57c9fccb NS |
270 | break; |
271 | case 'R': | |
d55ab835 | 272 | op = XFS_ATTRUPDATE_REPLACE; |
57c9fccb NS |
273 | break; |
274 | ||
e65a67fb DW |
275 | case 'N': |
276 | name_from_file = optarg; | |
277 | break; | |
278 | ||
6239071d | 279 | case 'n': |
ed8f5980 DW |
280 | /* |
281 | * We never touch attr2 these days; leave this here to | |
282 | * avoid breaking scripts. | |
283 | */ | |
6239071d NS |
284 | break; |
285 | ||
57c9fccb NS |
286 | /* value length */ |
287 | case 'v': | |
e65a67fb DW |
288 | if (value_from_file) { |
289 | dbprintf(_("already set value file\n")); | |
290 | return 0; | |
291 | } | |
292 | ||
8e9a788f CH |
293 | args.valuelen = strtol(optarg, &sp, 0); |
294 | if (*sp != '\0' || | |
295 | args.valuelen < 0 || args.valuelen > 64 * 1024) { | |
9ee7055c | 296 | dbprintf(_("bad attr_set valuelen %s\n"), optarg); |
57c9fccb NS |
297 | return 0; |
298 | } | |
299 | break; | |
300 | ||
e65a67fb DW |
301 | case 'V': |
302 | if (args.valuelen != 0) { | |
303 | dbprintf(_("already set valuelen\n")); | |
304 | return 0; | |
305 | } | |
306 | ||
307 | value_from_file = optarg; | |
308 | break; | |
309 | ||
57c9fccb | 310 | default: |
9ee7055c | 311 | dbprintf(_("bad option for attr_set command\n")); |
57c9fccb NS |
312 | return 0; |
313 | } | |
314 | } | |
315 | ||
e65a67fb DW |
316 | if (name_from_file) { |
317 | int namelen; | |
57c9fccb | 318 | |
e65a67fb DW |
319 | if (optind != argc) { |
320 | dbprintf(_("too many options for attr_set (no name needed)\n")); | |
321 | return 0; | |
322 | } | |
38cff22d | 323 | |
e65a67fb DW |
324 | args.name = get_buf_from_file(name_from_file, MAXNAMELEN, |
325 | &namelen); | |
326 | if (!args.name) | |
327 | return 0; | |
328 | ||
9b4c9c60 | 329 | free_name = true; |
e65a67fb DW |
330 | args.namelen = namelen; |
331 | } else { | |
9b4c9c60 | 332 | if (optind != argc - 1 && optind != argc - 2) { |
e65a67fb DW |
333 | dbprintf(_("too few options for attr_set (no name given)\n")); |
334 | return 0; | |
335 | } | |
336 | ||
337 | args.name = (const unsigned char *)argv[optind]; | |
338 | if (!args.name) { | |
339 | dbprintf(_("invalid name\n")); | |
340 | return 0; | |
341 | } | |
342 | ||
343 | args.namelen = strlen(argv[optind]); | |
344 | if (args.namelen >= MAXNAMELEN) { | |
345 | dbprintf(_("name too long\n")); | |
346 | goto out; | |
347 | } | |
38cff22d | 348 | } |
57c9fccb | 349 | |
e65a67fb DW |
350 | if (value_from_file) { |
351 | int valuelen; | |
352 | ||
353 | args.value = get_buf_from_file(value_from_file, | |
354 | XFS_XATTR_SIZE_MAX, &valuelen); | |
355 | if (!args.value) | |
356 | goto out; | |
357 | ||
358 | args.valuelen = valuelen; | |
359 | } else if (args.valuelen) { | |
8e9a788f CH |
360 | args.value = memalign(getpagesize(), args.valuelen); |
361 | if (!args.value) { | |
362 | dbprintf(_("cannot allocate buffer (%d)\n"), | |
363 | args.valuelen); | |
57c9fccb NS |
364 | goto out; |
365 | } | |
8e9a788f | 366 | memset(args.value, 'v', args.valuelen); |
9b4c9c60 DW |
367 | } else if (optind == argc - 2) { |
368 | args.valuelen = strlen(argv[optind + 1]); | |
369 | args.value = strdup(argv[optind + 1]); | |
370 | if (!args.value) { | |
371 | dbprintf(_("cannot allocate buffer (%d)\n"), | |
372 | args.valuelen); | |
373 | goto out; | |
374 | } | |
375 | } | |
376 | ||
377 | if (fsprop) { | |
378 | if (!fsprop_validate((const char *)args.name, args.value)) { | |
379 | dbprintf(_("%s: invalid value \"%s\"\n"), | |
380 | args.name, args.value); | |
381 | goto out; | |
382 | } | |
383 | ||
384 | if (!adjust_fsprop_attr_name(&args, &free_name)) | |
385 | goto out; | |
57c9fccb NS |
386 | } |
387 | ||
1fecabf9 | 388 | if (libxfs_iget(mp, NULL, iocur_top->ino, 0, &args.dp)) { |
57c9fccb NS |
389 | dbprintf(_("failed to iget inode %llu\n"), |
390 | (unsigned long long)iocur_top->ino); | |
391 | goto out; | |
392 | } | |
393 | ||
28488a35 DW |
394 | args.owner = iocur_top->ino; |
395 | libxfs_attr_sethash(&args); | |
396 | ||
361af16f DW |
397 | error = -libxfs_attr_set(&args, op, false); |
398 | if (error) { | |
399 | dbprintf(_("failed to set attr %s on inode %llu: %s\n"), | |
400 | args.name, (unsigned long long)iocur_top->ino, | |
401 | strerror(error)); | |
57c9fccb NS |
402 | goto out; |
403 | } | |
404 | ||
9b4c9c60 DW |
405 | if (fsprop) |
406 | print_fsprop(&args); | |
407 | ||
57c9fccb NS |
408 | /* refresh with updated inode contents */ |
409 | set_cur_inode(iocur_top->ino); | |
410 | ||
411 | out: | |
8e9a788f CH |
412 | if (args.dp) |
413 | libxfs_irele(args.dp); | |
414 | if (args.value) | |
415 | free(args.value); | |
9b4c9c60 | 416 | if (free_name) |
e65a67fb | 417 | free((void *)args.name); |
57c9fccb NS |
418 | return 0; |
419 | } | |
420 | ||
421 | static int | |
422 | attr_remove_f( | |
b8e89b44 CH |
423 | int argc, |
424 | char **argv) | |
57c9fccb | 425 | { |
28488a35 DW |
426 | struct xfs_da_args args = { |
427 | .geo = mp->m_attr_geo, | |
428 | .whichfork = XFS_ATTR_FORK, | |
429 | .op_flags = XFS_DA_OP_OKNOENT, | |
430 | }; | |
e65a67fb | 431 | char *name_from_file = NULL; |
9b4c9c60 DW |
432 | bool free_name = false; |
433 | bool fsprop = false; | |
a392fd5a | 434 | int c; |
361af16f | 435 | int error; |
57c9fccb NS |
436 | |
437 | if (cur_typ == NULL) { | |
9ee7055c | 438 | dbprintf(_("no current type\n")); |
57c9fccb NS |
439 | return 0; |
440 | } | |
441 | if (cur_typ->typnm != TYP_INODE) { | |
9ee7055c | 442 | dbprintf(_("current type is not inode\n")); |
57c9fccb NS |
443 | return 0; |
444 | } | |
445 | ||
9b4c9c60 | 446 | while ((c = getopt(argc, argv, "ruspnN:Z")) != EOF) { |
57c9fccb NS |
447 | switch (c) { |
448 | /* namespaces */ | |
9b4c9c60 DW |
449 | case 'Z': |
450 | fsprop = true; | |
451 | fallthrough; | |
57c9fccb | 452 | case 'r': |
e65a67fb | 453 | args.attr_filter &= ~LIBXFS_ATTR_NS; |
a392fd5a | 454 | args.attr_filter |= LIBXFS_ATTR_ROOT; |
57c9fccb NS |
455 | break; |
456 | case 'u': | |
e65a67fb | 457 | args.attr_filter &= ~LIBXFS_ATTR_NS; |
57c9fccb NS |
458 | break; |
459 | case 's': | |
e65a67fb | 460 | args.attr_filter &= ~LIBXFS_ATTR_NS; |
a392fd5a | 461 | args.attr_filter |= LIBXFS_ATTR_SECURE; |
e65a67fb DW |
462 | break; |
463 | case 'p': | |
464 | args.attr_filter &= ~LIBXFS_ATTR_NS; | |
465 | args.attr_filter |= XFS_ATTR_PARENT; | |
466 | break; | |
467 | ||
468 | case 'N': | |
469 | name_from_file = optarg; | |
57c9fccb NS |
470 | break; |
471 | ||
6239071d | 472 | case 'n': |
ed8f5980 DW |
473 | /* |
474 | * We never touch attr2 these days; leave this here to | |
475 | * avoid breaking scripts. | |
476 | */ | |
6239071d NS |
477 | break; |
478 | ||
57c9fccb | 479 | default: |
9ee7055c | 480 | dbprintf(_("bad option for attr_remove command\n")); |
57c9fccb NS |
481 | return 0; |
482 | } | |
483 | } | |
484 | ||
e65a67fb DW |
485 | if (name_from_file) { |
486 | int namelen; | |
57c9fccb | 487 | |
e65a67fb DW |
488 | if (optind != argc) { |
489 | dbprintf(_("too many options for attr_set (no name needed)\n")); | |
490 | return 0; | |
491 | } | |
38cff22d | 492 | |
e65a67fb DW |
493 | args.name = get_buf_from_file(name_from_file, MAXNAMELEN, |
494 | &namelen); | |
495 | if (!args.name) | |
496 | return 0; | |
497 | ||
9b4c9c60 | 498 | free_name = true; |
e65a67fb DW |
499 | args.namelen = namelen; |
500 | } else { | |
501 | if (optind != argc - 1) { | |
502 | dbprintf(_("too few options for attr_remove (no name given)\n")); | |
503 | return 0; | |
504 | } | |
505 | ||
506 | args.name = (const unsigned char *)argv[optind]; | |
507 | if (!args.name) { | |
508 | dbprintf(_("invalid name\n")); | |
509 | return 0; | |
510 | } | |
511 | ||
512 | args.namelen = strlen(argv[optind]); | |
513 | if (args.namelen >= MAXNAMELEN) { | |
514 | dbprintf(_("name too long\n")); | |
515 | return 0; | |
516 | } | |
38cff22d | 517 | } |
57c9fccb | 518 | |
9b4c9c60 DW |
519 | if (fsprop && !adjust_fsprop_attr_name(&args, &free_name)) |
520 | goto out; | |
521 | ||
1fecabf9 | 522 | if (libxfs_iget(mp, NULL, iocur_top->ino, 0, &args.dp)) { |
57c9fccb NS |
523 | dbprintf(_("failed to iget inode %llu\n"), |
524 | (unsigned long long)iocur_top->ino); | |
525 | goto out; | |
526 | } | |
527 | ||
28488a35 DW |
528 | args.owner = iocur_top->ino; |
529 | libxfs_attr_sethash(&args); | |
530 | ||
361af16f DW |
531 | error = -libxfs_attr_set(&args, XFS_ATTRUPDATE_REMOVE, false); |
532 | if (error) { | |
533 | dbprintf(_("failed to remove attr %s from inode %llu: %s\n"), | |
8e9a788f | 534 | (unsigned char *)args.name, |
361af16f DW |
535 | (unsigned long long)iocur_top->ino, |
536 | strerror(error)); | |
57c9fccb NS |
537 | goto out; |
538 | } | |
539 | ||
540 | /* refresh with updated inode contents */ | |
541 | set_cur_inode(iocur_top->ino); | |
542 | ||
543 | out: | |
8e9a788f CH |
544 | if (args.dp) |
545 | libxfs_irele(args.dp); | |
9b4c9c60 DW |
546 | if (free_name) |
547 | free((void *)args.name); | |
548 | return 0; | |
549 | } | |
550 | ||
551 | static int | |
552 | attr_get_f( | |
553 | int argc, | |
554 | char **argv) | |
555 | { | |
556 | struct xfs_da_args args = { | |
557 | .geo = mp->m_attr_geo, | |
558 | .whichfork = XFS_ATTR_FORK, | |
559 | .op_flags = XFS_DA_OP_OKNOENT, | |
560 | }; | |
561 | char *name_from_file = NULL; | |
562 | bool free_name = false; | |
563 | bool fsprop = false; | |
564 | int c; | |
565 | int error; | |
566 | ||
567 | if (cur_typ == NULL) { | |
568 | dbprintf(_("no current type\n")); | |
569 | return 0; | |
570 | } | |
571 | if (cur_typ->typnm != TYP_INODE) { | |
572 | dbprintf(_("current type is not inode\n")); | |
573 | return 0; | |
574 | } | |
575 | ||
576 | while ((c = getopt(argc, argv, "ruspN:Z")) != EOF) { | |
577 | switch (c) { | |
578 | /* namespaces */ | |
579 | case 'Z': | |
580 | fsprop = true; | |
581 | fallthrough; | |
582 | case 'r': | |
583 | args.attr_filter &= ~LIBXFS_ATTR_NS; | |
584 | args.attr_filter |= LIBXFS_ATTR_ROOT; | |
585 | break; | |
586 | case 'u': | |
587 | args.attr_filter &= ~LIBXFS_ATTR_NS; | |
588 | break; | |
589 | case 's': | |
590 | args.attr_filter &= ~LIBXFS_ATTR_NS; | |
591 | args.attr_filter |= LIBXFS_ATTR_SECURE; | |
592 | break; | |
593 | case 'p': | |
594 | args.attr_filter &= ~LIBXFS_ATTR_NS; | |
595 | args.attr_filter |= XFS_ATTR_PARENT; | |
596 | break; | |
597 | ||
598 | case 'N': | |
599 | name_from_file = optarg; | |
600 | break; | |
601 | default: | |
602 | dbprintf(_("bad option for attr_get command\n")); | |
603 | return 0; | |
604 | } | |
605 | } | |
606 | ||
607 | if (name_from_file) { | |
608 | int namelen; | |
609 | ||
610 | if (optind != argc) { | |
611 | dbprintf(_("too many options for attr_get (no name needed)\n")); | |
612 | return 0; | |
613 | } | |
614 | ||
615 | args.name = get_buf_from_file(name_from_file, MAXNAMELEN, | |
616 | &namelen); | |
617 | if (!args.name) | |
618 | return 0; | |
619 | ||
620 | free_name = true; | |
621 | args.namelen = namelen; | |
622 | } else { | |
623 | if (optind != argc - 1) { | |
624 | dbprintf(_("too few options for attr_get (no name given)\n")); | |
625 | return 0; | |
626 | } | |
627 | ||
628 | args.name = (const unsigned char *)argv[optind]; | |
629 | if (!args.name) { | |
630 | dbprintf(_("invalid name\n")); | |
631 | return 0; | |
632 | } | |
633 | ||
634 | args.namelen = strlen(argv[optind]); | |
635 | if (args.namelen >= MAXNAMELEN) { | |
636 | dbprintf(_("name too long\n")); | |
637 | goto out; | |
638 | } | |
639 | } | |
640 | ||
641 | if (libxfs_iget(mp, NULL, iocur_top->ino, 0, &args.dp)) { | |
642 | dbprintf(_("failed to iget inode %llu\n"), | |
643 | (unsigned long long)iocur_top->ino); | |
644 | goto out; | |
645 | } | |
646 | ||
647 | if (fsprop && !adjust_fsprop_attr_name(&args, &free_name)) | |
648 | goto out; | |
649 | ||
650 | args.owner = iocur_top->ino; | |
651 | libxfs_attr_sethash(&args); | |
652 | ||
653 | /* | |
654 | * Look up attr value with a maximally long length and a null buffer | |
655 | * to return the value and the correct length. | |
656 | */ | |
657 | args.valuelen = XATTR_SIZE_MAX; | |
658 | error = -libxfs_attr_get(&args); | |
659 | if (error) { | |
660 | dbprintf(_("failed to get attr %s on inode %llu: %s\n"), | |
661 | args.name, (unsigned long long)iocur_top->ino, | |
662 | strerror(error)); | |
663 | goto out; | |
664 | } | |
665 | ||
666 | if (fsprop) | |
667 | print_fsprop(&args); | |
668 | else | |
669 | printf("%.*s\n", args.valuelen, (char *)args.value); | |
670 | ||
671 | out: | |
672 | if (args.dp) | |
673 | libxfs_irele(args.dp); | |
674 | if (args.value) | |
675 | free(args.value); | |
676 | if (free_name) | |
e65a67fb | 677 | free((void *)args.name); |
57c9fccb NS |
678 | return 0; |
679 | } | |
dfcdf16c DW |
680 | |
681 | struct attrlist_ctx { | |
682 | unsigned int attr_filter; | |
683 | bool print_values; | |
684 | bool fsprop; | |
685 | }; | |
686 | ||
687 | static int | |
688 | attrlist_print( | |
689 | struct xfs_trans *tp, | |
690 | struct xfs_inode *ip, | |
691 | unsigned int attr_flags, | |
692 | const unsigned char *name, | |
693 | unsigned int namelen, | |
694 | const void *value, | |
695 | unsigned int valuelen, | |
696 | void *priv) | |
697 | { | |
698 | struct attrlist_ctx *ctx = priv; | |
699 | struct xfs_da_args args = { | |
700 | .geo = mp->m_attr_geo, | |
701 | .whichfork = XFS_ATTR_FORK, | |
702 | .op_flags = XFS_DA_OP_OKNOENT, | |
703 | .dp = ip, | |
704 | .owner = ip->i_ino, | |
705 | .trans = tp, | |
706 | .attr_filter = attr_flags & XFS_ATTR_NSP_ONDISK_MASK, | |
707 | .name = name, | |
708 | .namelen = namelen, | |
709 | }; | |
710 | char namebuf[MAXNAMELEN + 1]; | |
711 | const char *print_name = namebuf; | |
712 | int error; | |
713 | ||
714 | if ((attr_flags & XFS_ATTR_NSP_ONDISK_MASK) != ctx->attr_filter) | |
715 | return 0; | |
716 | ||
717 | /* Make sure the name is null terminated. */ | |
718 | memcpy(namebuf, name, namelen); | |
719 | namebuf[MAXNAMELEN] = 0; | |
720 | ||
721 | if (ctx->fsprop) { | |
722 | const char *p = attr_name_to_fsprop_name(namebuf); | |
723 | ||
724 | if (!p) | |
725 | return 0; | |
726 | ||
727 | namelen -= (p - namebuf); | |
728 | print_name = p; | |
729 | } | |
730 | ||
731 | if (!ctx->print_values) { | |
732 | printf("%.*s\n", namelen, print_name); | |
733 | return 0; | |
734 | } | |
735 | ||
736 | if (value) { | |
737 | printf("%.*s=%.*s\n", namelen, print_name, valuelen, | |
738 | (char *)value); | |
739 | return 0; | |
740 | } | |
741 | ||
742 | libxfs_attr_sethash(&args); | |
743 | ||
744 | /* | |
745 | * Look up attr value with a maximally long length and a null buffer | |
746 | * to return the value and the correct length. | |
747 | */ | |
748 | args.valuelen = XATTR_SIZE_MAX; | |
749 | error = -libxfs_attr_get(&args); | |
750 | if (error) { | |
751 | dbprintf(_("failed to get attr %s on inode %llu: %s\n"), | |
752 | args.name, (unsigned long long)iocur_top->ino, | |
753 | strerror(error)); | |
754 | return error; | |
755 | } | |
756 | ||
757 | printf("%.*s=%.*s\n", namelen, print_name, args.valuelen, | |
758 | (char *)args.value); | |
759 | kfree(args.value); | |
760 | ||
761 | return 0; | |
762 | } | |
763 | ||
764 | static int | |
765 | attr_list_f( | |
766 | int argc, | |
767 | char **argv) | |
768 | { | |
769 | struct attrlist_ctx ctx = { }; | |
770 | struct xfs_trans *tp; | |
771 | struct xfs_inode *ip; | |
772 | int c; | |
773 | int error; | |
774 | ||
775 | if (cur_typ == NULL) { | |
776 | dbprintf(_("no current type\n")); | |
777 | return 0; | |
778 | } | |
779 | if (cur_typ->typnm != TYP_INODE) { | |
780 | dbprintf(_("current type is not inode\n")); | |
781 | return 0; | |
782 | } | |
783 | ||
784 | while ((c = getopt(argc, argv, "ruspvZ")) != EOF) { | |
785 | switch (c) { | |
786 | /* namespaces */ | |
787 | case 'Z': | |
788 | ctx.fsprop = true; | |
789 | fallthrough; | |
790 | case 'r': | |
791 | ctx.attr_filter &= ~LIBXFS_ATTR_NS; | |
792 | ctx.attr_filter |= LIBXFS_ATTR_ROOT; | |
793 | break; | |
794 | case 'u': | |
795 | ctx.attr_filter &= ~LIBXFS_ATTR_NS; | |
796 | break; | |
797 | case 's': | |
798 | ctx.attr_filter &= ~LIBXFS_ATTR_NS; | |
799 | ctx.attr_filter |= LIBXFS_ATTR_SECURE; | |
800 | break; | |
801 | case 'p': | |
802 | ctx.attr_filter &= ~LIBXFS_ATTR_NS; | |
803 | ctx.attr_filter |= XFS_ATTR_PARENT; | |
804 | break; | |
805 | ||
806 | case 'v': | |
807 | ctx.print_values = true; | |
808 | break; | |
809 | default: | |
810 | dbprintf(_("bad option for attr_list command\n")); | |
811 | return 0; | |
812 | } | |
813 | } | |
814 | ||
815 | if (ctx.fsprop && | |
816 | (ctx.attr_filter & LIBXFS_ATTR_NS) != LIBXFS_ATTR_ROOT) { | |
817 | dbprintf(_("fs properties must be ATTR_ROOT\n")); | |
818 | return false; | |
819 | } | |
820 | ||
821 | if (optind != argc) { | |
822 | dbprintf(_("too many options for attr_list (no name needed)\n")); | |
823 | return 0; | |
824 | } | |
825 | ||
826 | error = -libxfs_trans_alloc_empty(mp, &tp); | |
827 | if (error) { | |
828 | dbprintf(_("failed to allocate empty transaction\n")); | |
829 | return 0; | |
830 | } | |
831 | ||
832 | error = -libxfs_iget(mp, NULL, iocur_top->ino, 0, &ip); | |
833 | if (error) { | |
834 | dbprintf(_("failed to iget inode %llu: %s\n"), | |
835 | (unsigned long long)iocur_top->ino, | |
836 | strerror(error)); | |
837 | goto out_trans; | |
838 | } | |
839 | ||
840 | error = xattr_walk(tp, ip, attrlist_print, &ctx); | |
841 | if (error) { | |
842 | dbprintf(_("walking inode %llu xattrs: %s\n"), | |
843 | (unsigned long long)iocur_top->ino, | |
844 | strerror(error)); | |
845 | goto out_inode; | |
846 | } | |
847 | ||
848 | out_inode: | |
849 | libxfs_irele(ip); | |
850 | out_trans: | |
851 | libxfs_trans_cancel(tp); | |
852 | return 0; | |
853 | } |