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1 | /* | |
2 | * mdadm - manage Linux "md" devices aka RAID arrays. | |
3 | * | |
4 | * Copyright (C) 2001-2013 Neil Brown <neilb@suse.de> | |
5 | * | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | * Author: Neil Brown | |
22 | * Email: <neilb@suse.de> | |
23 | * | |
24 | * Additions for bitmap and write-behind RAID options, Copyright (C) 2003-2004, | |
25 | * Paul Clements, SteelEye Technology, Inc. | |
26 | */ | |
27 | ||
28 | #include "mdadm.h" | |
29 | #include "md_p.h" | |
30 | #include <ctype.h> | |
31 | ||
32 | /** | |
33 | * set_bitmap_value() - set bitmap value. | |
34 | * @s: Shape. | |
35 | * @c: Context. | |
36 | * @val: value to set. | |
37 | * | |
38 | * Validate and set bitmap. Context is needed for setting nodes for clustered bitmap. | |
39 | */ | |
40 | static mdadm_status_t set_bitmap_value(struct shape *s, struct context *c, char *val) | |
41 | { | |
42 | if (s->bitmap_file) { | |
43 | pr_err("--bitmap cannot be set twice. Second value: \"%s\".\n", val); | |
44 | return MDADM_STATUS_ERROR; | |
45 | } | |
46 | ||
47 | if (strcmp(val, "internal") == 0 || strcmp(optarg, STR_COMMON_NONE) == 0) { | |
48 | s->bitmap_file = val; | |
49 | return MDADM_STATUS_SUCCESS; | |
50 | } | |
51 | ||
52 | if (strcmp(val, "clustered") == 0) { | |
53 | s->bitmap_file = val; | |
54 | /* Set the default number of cluster nodes | |
55 | * to 4 if not already set by user | |
56 | */ | |
57 | if (c->nodes < 1) | |
58 | c->nodes = 4; | |
59 | return MDADM_STATUS_SUCCESS; | |
60 | } | |
61 | ||
62 | if (strchr(val, '/')) { | |
63 | pr_info("Custom write-intent bitmap file option is deprecated.\n"); | |
64 | if (ask("Do you want to continue? (y/n)")) { | |
65 | s->bitmap_file = val; | |
66 | return MDADM_STATUS_SUCCESS; | |
67 | } | |
68 | ||
69 | return MDADM_STATUS_ERROR; | |
70 | } | |
71 | ||
72 | pr_err("--bitmap value must contain a '/' or be 'internal', 'clustered' or 'none'\n"); | |
73 | pr_err("Current value is \"%s\"", val); | |
74 | return MDADM_STATUS_ERROR; | |
75 | } | |
76 | ||
77 | static int scan_assemble(struct supertype *ss, | |
78 | struct context *c, | |
79 | struct mddev_ident *ident); | |
80 | static int misc_scan(char devmode, struct context *c); | |
81 | static int stop_scan(int verbose); | |
82 | static int misc_list(struct mddev_dev *devlist, | |
83 | struct mddev_ident *ident, | |
84 | char *dump_directory, | |
85 | struct supertype *ss, struct context *c); | |
86 | const char Name[] = "mdadm"; | |
87 | ||
88 | int main(int argc, char *argv[]) | |
89 | { | |
90 | int mode = 0; | |
91 | int opt; | |
92 | int option_index; | |
93 | int rv; | |
94 | int i; | |
95 | ||
96 | unsigned long long array_size = 0; | |
97 | struct mddev_ident ident; | |
98 | char *configfile = NULL; | |
99 | int devmode = 0; | |
100 | int bitmap_fd = -1; | |
101 | struct mddev_dev *devlist = NULL; | |
102 | struct mddev_dev **devlistend = & devlist; | |
103 | struct mddev_dev *dv; | |
104 | mdu_array_info_t array; | |
105 | int devs_found = 0; | |
106 | int grow_continue = 0; | |
107 | /* autof indicates whether and how to create device node. | |
108 | * bottom 3 bits are style. Rest (when shifted) are number of parts | |
109 | * 0 - unset | |
110 | * 1 - don't create (no) | |
111 | * 2 - if is_standard, then create (yes) | |
112 | * 3 - create as 'md' - reject is_standard mdp (md) | |
113 | * 4 - create as 'mdp' - reject is_standard md (mdp) | |
114 | * 5 - default to md if not is_standard (md in config file) | |
115 | * 6 - default to mdp if not is_standard (part, or mdp in config file) | |
116 | */ | |
117 | struct context c = { | |
118 | .require_homehost = 1, | |
119 | }; | |
120 | struct shape s = { | |
121 | .journaldisks = 0, | |
122 | .level = UnSet, | |
123 | .layout = UnSet, | |
124 | .bitmap_chunk = UnSet, | |
125 | .consistency_policy = CONSISTENCY_POLICY_UNKNOWN, | |
126 | .data_offset = INVALID_SECTORS, | |
127 | }; | |
128 | ||
129 | char sys_hostname[256]; | |
130 | char *mailaddr = NULL; | |
131 | char *program = NULL; | |
132 | int increments = 20; | |
133 | int daemonise = 0; | |
134 | char *pidfile = NULL; | |
135 | int oneshot = 0; | |
136 | int spare_sharing = 1; | |
137 | struct supertype *ss = NULL; | |
138 | enum flag_mode writemostly = FlagDefault; | |
139 | enum flag_mode failfast = FlagDefault; | |
140 | char *shortopt = short_options; | |
141 | int dosyslog = 0; | |
142 | int rebuild_map = 0; | |
143 | char *remove_path = NULL; | |
144 | char *udev_filename = NULL; | |
145 | char *dump_directory = NULL; | |
146 | ||
147 | int print_help = 0; | |
148 | FILE *outf = NULL; | |
149 | ||
150 | int mdfd = -1; | |
151 | int locked = 0; | |
152 | ||
153 | srandom(time(0) ^ getpid()); | |
154 | ||
155 | if (get_linux_version() < 2006032) { | |
156 | pr_err("This version of mdadm does not support kernels older than 2.6.32\n"); | |
157 | exit(1); | |
158 | } | |
159 | ||
160 | ident_init(&ident); | |
161 | ||
162 | while ((option_index = -1), | |
163 | (opt = getopt_long(argc, argv, shortopt, long_options, | |
164 | &option_index)) != -1) { | |
165 | int newmode = mode; | |
166 | /* firstly, some mode-independent options */ | |
167 | switch(opt) { | |
168 | case HelpOptions: | |
169 | print_help = 2; | |
170 | continue; | |
171 | case 'h': | |
172 | print_help = 1; | |
173 | continue; | |
174 | ||
175 | case 'V': | |
176 | fputs(Version, stderr); | |
177 | exit(0); | |
178 | ||
179 | case 'v': c.verbose++; | |
180 | continue; | |
181 | ||
182 | case 'q': c.verbose--; | |
183 | continue; | |
184 | ||
185 | case 'b': | |
186 | if (mode == ASSEMBLE || mode == BUILD || | |
187 | mode == CREATE || mode == GROW || | |
188 | mode == INCREMENTAL || mode == MANAGE) | |
189 | break; /* b means bitmap */ | |
190 | case Brief: | |
191 | c.brief = 1; | |
192 | continue; | |
193 | ||
194 | case NoDevices: | |
195 | c.no_devices = 1; | |
196 | continue; | |
197 | ||
198 | case 'Y': c.export++; | |
199 | continue; | |
200 | ||
201 | case HomeHost: | |
202 | if (is_devname_ignore(optarg) == true) | |
203 | c.require_homehost = 0; | |
204 | else | |
205 | c.homehost = optarg; | |
206 | continue; | |
207 | ||
208 | case OffRootOpt: | |
209 | /* Silently ignore old option */ | |
210 | continue; | |
211 | ||
212 | case Prefer: | |
213 | if (c.prefer) | |
214 | free(c.prefer); | |
215 | if (asprintf(&c.prefer, "/%s/", optarg) <= 0) | |
216 | c.prefer = NULL; | |
217 | continue; | |
218 | ||
219 | case ':': | |
220 | case '?': | |
221 | fputs(Usage, stderr); | |
222 | exit(2); | |
223 | } | |
224 | /* second, figure out the mode. | |
225 | * Some options force the mode. Others | |
226 | * set the mode if it isn't already | |
227 | */ | |
228 | ||
229 | switch(opt) { | |
230 | case ManageOpt: | |
231 | newmode = MANAGE; | |
232 | shortopt = short_bitmap_options; | |
233 | break; | |
234 | case 'a': | |
235 | case Add: | |
236 | case AddSpare: | |
237 | case AddJournal: | |
238 | case 'r': | |
239 | case Remove: | |
240 | case Replace: | |
241 | case With: | |
242 | case 'f': | |
243 | case Fail: | |
244 | case ReAdd: /* re-add */ | |
245 | case ClusterConfirm: | |
246 | if (!mode) { | |
247 | newmode = MANAGE; | |
248 | shortopt = short_bitmap_options; | |
249 | } | |
250 | break; | |
251 | ||
252 | case 'A': newmode = ASSEMBLE; | |
253 | shortopt = short_bitmap_auto_options; | |
254 | break; | |
255 | case 'B': newmode = BUILD; | |
256 | shortopt = short_bitmap_auto_options; | |
257 | break; | |
258 | case 'C': newmode = CREATE; | |
259 | shortopt = short_bitmap_auto_options; | |
260 | break; | |
261 | case 'F': newmode = MONITOR; | |
262 | shortopt = short_monitor_options; | |
263 | break; | |
264 | case 'G': newmode = GROW; | |
265 | shortopt = short_bitmap_options; | |
266 | break; | |
267 | case 'I': newmode = INCREMENTAL; | |
268 | shortopt = short_bitmap_auto_options; | |
269 | break; | |
270 | case AutoDetect: | |
271 | newmode = AUTODETECT; | |
272 | break; | |
273 | ||
274 | case MiscOpt: | |
275 | case 'D': | |
276 | case 'E': | |
277 | case 'X': | |
278 | case 'Q': | |
279 | case ExamineBB: | |
280 | case Dump: | |
281 | case Restore: | |
282 | case Action: | |
283 | newmode = MISC; | |
284 | break; | |
285 | ||
286 | case 'R': | |
287 | case 'S': | |
288 | case 'o': | |
289 | case 'w': | |
290 | case 'W': | |
291 | case WaitOpt: | |
292 | case Waitclean: | |
293 | case DetailPlatform: | |
294 | case KillSubarray: | |
295 | case UpdateSubarray: | |
296 | case UdevRules: | |
297 | case KillOpt: | |
298 | if (!mode) | |
299 | newmode = MISC; | |
300 | break; | |
301 | ||
302 | case NoSharing: | |
303 | newmode = MONITOR; | |
304 | break; | |
305 | } | |
306 | if (mode && newmode == mode) { | |
307 | /* everybody happy ! */ | |
308 | } else if (mode && newmode != mode) { | |
309 | /* not allowed.. */ | |
310 | pr_err(""); | |
311 | if (option_index >= 0) | |
312 | fprintf(stderr, "--%s", long_options[option_index].name); | |
313 | else | |
314 | fprintf(stderr, "-%c", opt); | |
315 | fprintf(stderr, " would set mdadm mode to \"%s\", but it is already set to \"%s\".\n", | |
316 | map_num_s(modes, newmode), | |
317 | map_num_s(modes, mode)); | |
318 | exit(2); | |
319 | } else if (!mode && newmode) { | |
320 | mode = newmode; | |
321 | if (mode == MISC && devs_found) { | |
322 | pr_err("No action given for %s in --misc mode\n", | |
323 | devlist->devname); | |
324 | cont_err("Action options must come before device names\n"); | |
325 | exit(2); | |
326 | } | |
327 | } else { | |
328 | /* special case of -c --help */ | |
329 | if ((opt == 'c' || opt == ConfigFile) && | |
330 | (strncmp(optarg, "--h", 3) == 0 || | |
331 | strncmp(optarg, "-h", 2) == 0)) { | |
332 | fputs(Help_config, stdout); | |
333 | exit(0); | |
334 | } | |
335 | ||
336 | /* If first option is a device, don't force the mode yet */ | |
337 | if (opt == 1) { | |
338 | if (devs_found == 0) { | |
339 | dv = xmalloc(sizeof(*dv)); | |
340 | dv->devname = optarg; | |
341 | dv->disposition = devmode; | |
342 | dv->writemostly = writemostly; | |
343 | dv->failfast = failfast; | |
344 | dv->used = 0; | |
345 | dv->next = NULL; | |
346 | *devlistend = dv; | |
347 | devlistend = &dv->next; | |
348 | ||
349 | devs_found++; | |
350 | continue; | |
351 | } | |
352 | /* No mode yet, and this is the second device ... */ | |
353 | pr_err("An option must be given to set the mode before a second device\n" | |
354 | " (%s) is listed\n", optarg); | |
355 | exit(2); | |
356 | } | |
357 | if (option_index >= 0) | |
358 | pr_err("--%s", long_options[option_index].name); | |
359 | else | |
360 | pr_err("-%c", opt); | |
361 | fprintf(stderr, " does not set the mode, and so cannot be the first option.\n"); | |
362 | exit(2); | |
363 | } | |
364 | ||
365 | /* if we just set the mode, then done */ | |
366 | switch(opt) { | |
367 | case ManageOpt: | |
368 | case MiscOpt: | |
369 | case 'A': | |
370 | case 'B': | |
371 | case 'C': | |
372 | case 'F': | |
373 | case 'G': | |
374 | case 'I': | |
375 | case AutoDetect: | |
376 | continue; | |
377 | } | |
378 | if (opt == 1) { | |
379 | /* an undecorated option - must be a device name. | |
380 | */ | |
381 | ||
382 | if (devs_found > 0 && devmode == DetailPlatform) { | |
383 | pr_err("controller may only be specified once. %s ignored\n", | |
384 | optarg); | |
385 | continue; | |
386 | } | |
387 | ||
388 | if (devs_found > 0 && mode == MANAGE && !devmode) { | |
389 | pr_err("Must give one of -a/-r/-f for subsequent devices at %s\n", optarg); | |
390 | exit(2); | |
391 | } | |
392 | if (devs_found > 0 && mode == GROW && !devmode) { | |
393 | pr_err("Must give -a/--add for devices to add: %s\n", optarg); | |
394 | exit(2); | |
395 | } | |
396 | dv = xmalloc(sizeof(*dv)); | |
397 | dv->devname = optarg; | |
398 | dv->disposition = devmode; | |
399 | dv->writemostly = writemostly; | |
400 | dv->failfast = failfast; | |
401 | dv->used = 0; | |
402 | dv->next = NULL; | |
403 | *devlistend = dv; | |
404 | devlistend = &dv->next; | |
405 | ||
406 | devs_found++; | |
407 | continue; | |
408 | } | |
409 | ||
410 | /* We've got a mode, and opt is now something else which | |
411 | * could depend on the mode */ | |
412 | #define O(a,b) ((a<<16)|b) | |
413 | switch (O(mode,opt)) { | |
414 | case O(GROW,'c'): | |
415 | case O(GROW,ChunkSize): | |
416 | case O(CREATE,'c'): | |
417 | case O(CREATE,ChunkSize): | |
418 | case O(BUILD,'c'): /* chunk or rounding */ | |
419 | case O(BUILD,ChunkSize): /* chunk or rounding */ | |
420 | if (s.chunk) { | |
421 | pr_err("chunk/rounding may only be specified once. Second value is %s.\n", optarg); | |
422 | exit(2); | |
423 | } | |
424 | s.chunk = parse_size(optarg); | |
425 | if (s.chunk == INVALID_SECTORS || | |
426 | s.chunk < 8 || (s.chunk&1)) { | |
427 | pr_err("invalid chunk/rounding value: %s\n", | |
428 | optarg); | |
429 | exit(2); | |
430 | } | |
431 | /* Convert sectors to K */ | |
432 | s.chunk /= 2; | |
433 | continue; | |
434 | ||
435 | case O(INCREMENTAL, 'e'): | |
436 | case O(CREATE,'e'): | |
437 | case O(ASSEMBLE,'e'): | |
438 | case O(MISC,'e'): /* set metadata (superblock) information */ | |
439 | if (ss) { | |
440 | pr_err("metadata information already given\n"); | |
441 | exit(2); | |
442 | } | |
443 | for(i = 0; !ss && superlist[i]; i++) | |
444 | ss = superlist[i]->match_metadata_desc(optarg); | |
445 | ||
446 | if (!ss) { | |
447 | pr_err("unrecognised metadata identifier: %s\n", optarg); | |
448 | exit(2); | |
449 | } | |
450 | continue; | |
451 | ||
452 | case O(MANAGE,'W'): | |
453 | case O(MANAGE,WriteMostly): | |
454 | case O(BUILD,'W'): | |
455 | case O(BUILD,WriteMostly): | |
456 | case O(CREATE,'W'): | |
457 | case O(CREATE,WriteMostly): | |
458 | /* set write-mostly for following devices */ | |
459 | writemostly = FlagSet; | |
460 | continue; | |
461 | ||
462 | case O(MANAGE,'w'): | |
463 | /* clear write-mostly for following devices */ | |
464 | writemostly = FlagClear; | |
465 | continue; | |
466 | ||
467 | case O(MANAGE,FailFast): | |
468 | case O(CREATE,FailFast): | |
469 | failfast = FlagSet; | |
470 | continue; | |
471 | case O(MANAGE,NoFailFast): | |
472 | failfast = FlagClear; | |
473 | continue; | |
474 | ||
475 | case O(GROW,'z'): | |
476 | case O(CREATE,'z'): | |
477 | case O(BUILD,'z'): /* size */ | |
478 | if (s.size > 0) { | |
479 | pr_err("size may only be specified once. Second value is %s.\n", optarg); | |
480 | exit(2); | |
481 | } | |
482 | if (strcmp(optarg, "max") == 0) | |
483 | s.size = MAX_SIZE; | |
484 | else { | |
485 | s.size = parse_size(optarg); | |
486 | if (s.size == INVALID_SECTORS || s.size < 8) { | |
487 | pr_err("invalid size: %s\n", optarg); | |
488 | exit(2); | |
489 | } | |
490 | /* convert sectors to K */ | |
491 | s.size /= 2; | |
492 | } | |
493 | continue; | |
494 | ||
495 | case O(GROW,'Z'): /* array size */ | |
496 | if (array_size > 0) { | |
497 | pr_err("array-size may only be specified once. Second value is %s.\n", optarg); | |
498 | exit(2); | |
499 | } | |
500 | if (strcmp(optarg, "max") == 0) | |
501 | array_size = MAX_SIZE; | |
502 | else { | |
503 | array_size = parse_size(optarg); | |
504 | if (array_size == 0 || | |
505 | array_size == INVALID_SECTORS) { | |
506 | pr_err("invalid array size: %s\n", | |
507 | optarg); | |
508 | exit(2); | |
509 | } | |
510 | } | |
511 | continue; | |
512 | ||
513 | case O(CREATE,DataOffset): | |
514 | case O(GROW,DataOffset): | |
515 | if (s.data_offset != INVALID_SECTORS) { | |
516 | pr_err("data-offset may only be specified one. Second value is %s.\n", optarg); | |
517 | exit(2); | |
518 | } | |
519 | if (mode == CREATE && strcmp(optarg, "variable") == 0) | |
520 | s.data_offset = VARIABLE_OFFSET; | |
521 | else | |
522 | s.data_offset = parse_size(optarg); | |
523 | if (s.data_offset == INVALID_SECTORS) { | |
524 | pr_err("invalid data-offset: %s\n", | |
525 | optarg); | |
526 | exit(2); | |
527 | } | |
528 | continue; | |
529 | ||
530 | case O(GROW,'l'): | |
531 | case O(CREATE,'l'): | |
532 | case O(BUILD,'l'): /* set raid level*/ | |
533 | if (s.level != UnSet) { | |
534 | pr_err("raid level may only be set once. Second value is %s.\n", optarg); | |
535 | exit(2); | |
536 | } | |
537 | s.level = map_name(pers, optarg); | |
538 | if (s.level == UnSet) { | |
539 | pr_err("invalid raid level: %s\n", | |
540 | optarg); | |
541 | exit(2); | |
542 | } | |
543 | if (s.level != 0 && s.level != LEVEL_LINEAR && | |
544 | s.level != 1 && s.level != LEVEL_MULTIPATH && | |
545 | s.level != LEVEL_FAULTY && s.level != 10 && | |
546 | mode == BUILD) { | |
547 | pr_err("Raid level %s not permitted with --build.\n", | |
548 | optarg); | |
549 | exit(2); | |
550 | } | |
551 | if (s.sparedisks > 0 && s.level < 1 && s.level >= -1) { | |
552 | pr_err("raid level %s is incompatible with spare-devices setting.\n", | |
553 | optarg); | |
554 | exit(2); | |
555 | } | |
556 | ident.level = s.level; | |
557 | continue; | |
558 | ||
559 | case O(GROW, 'p'): /* new layout */ | |
560 | case O(GROW, Layout): | |
561 | if (s.layout_str) { | |
562 | pr_err("layout may only be sent once. Second value was %s\n", optarg); | |
563 | exit(2); | |
564 | } | |
565 | s.layout_str = optarg; | |
566 | /* 'Grow' will parse the value */ | |
567 | continue; | |
568 | ||
569 | case O(CREATE,'p'): /* raid5 layout */ | |
570 | case O(CREATE,Layout): | |
571 | case O(BUILD,'p'): /* faulty layout */ | |
572 | case O(BUILD,Layout): | |
573 | if (s.layout != UnSet) { | |
574 | pr_err("layout may only be sent once. Second value was %s\n", optarg); | |
575 | exit(2); | |
576 | } | |
577 | switch(s.level) { | |
578 | default: | |
579 | pr_err("layout not meaningful for %s arrays.\n", | |
580 | map_num_s(pers, s.level)); | |
581 | exit(2); | |
582 | case UnSet: | |
583 | pr_err("raid level must be given before layout.\n"); | |
584 | exit(2); | |
585 | ||
586 | case 0: | |
587 | s.layout = map_name(r0layout, optarg); | |
588 | if (s.layout == UnSet) { | |
589 | pr_err("layout %s not understood for raid0.\n", | |
590 | optarg); | |
591 | exit(2); | |
592 | } | |
593 | break; | |
594 | case 5: | |
595 | s.layout = map_name(r5layout, optarg); | |
596 | if (s.layout == UnSet) { | |
597 | pr_err("layout %s not understood for raid5.\n", | |
598 | optarg); | |
599 | exit(2); | |
600 | } | |
601 | break; | |
602 | case 6: | |
603 | s.layout = map_name(r6layout, optarg); | |
604 | if (s.layout == UnSet) { | |
605 | pr_err("layout %s not understood for raid6.\n", | |
606 | optarg); | |
607 | exit(2); | |
608 | } | |
609 | break; | |
610 | ||
611 | case 10: | |
612 | s.layout = parse_layout_10(optarg); | |
613 | if (s.layout < 0) { | |
614 | pr_err("layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg); | |
615 | exit(2); | |
616 | } | |
617 | break; | |
618 | case LEVEL_FAULTY: | |
619 | /* Faulty | |
620 | * modeNNN | |
621 | */ | |
622 | s.layout = parse_layout_faulty(optarg); | |
623 | if (s.layout == -1) { | |
624 | pr_err("layout %s not understood for faulty.\n", | |
625 | optarg); | |
626 | exit(2); | |
627 | } | |
628 | break; | |
629 | } | |
630 | continue; | |
631 | ||
632 | case O(CREATE,AssumeClean): | |
633 | case O(BUILD,AssumeClean): /* assume clean */ | |
634 | case O(GROW,AssumeClean): | |
635 | s.assume_clean = 1; | |
636 | continue; | |
637 | ||
638 | case O(CREATE, WriteZeroes): | |
639 | s.write_zeroes = 1; | |
640 | continue; | |
641 | ||
642 | case O(GROW,'n'): | |
643 | case O(CREATE,'n'): | |
644 | case O(BUILD,'n'): /* number of raid disks */ | |
645 | if (s.raiddisks) { | |
646 | pr_err("raid-devices set twice: %d and %s\n", | |
647 | s.raiddisks, optarg); | |
648 | exit(2); | |
649 | } | |
650 | if (parse_num(&s.raiddisks, optarg) != 0 || s.raiddisks <= 0) { | |
651 | pr_err("invalid number of raid devices: %s\n", | |
652 | optarg); | |
653 | exit(2); | |
654 | } | |
655 | ident.raid_disks = s.raiddisks; | |
656 | continue; | |
657 | case O(ASSEMBLE, Nodes): | |
658 | case O(GROW, Nodes): | |
659 | case O(CREATE, Nodes): | |
660 | if (parse_num(&c.nodes, optarg) != 0 || c.nodes < 2) { | |
661 | pr_err("clustered array needs two nodes at least: %s\n", | |
662 | optarg); | |
663 | exit(2); | |
664 | } | |
665 | continue; | |
666 | case O(CREATE, ClusterName): | |
667 | case O(ASSEMBLE, ClusterName): | |
668 | c.homecluster = optarg; | |
669 | if (strlen(c.homecluster) > 64) { | |
670 | pr_err("Cluster name too big.\n"); | |
671 | exit(2); | |
672 | } | |
673 | continue; | |
674 | case O(CREATE,'x'): /* number of spare (eXtra) disks */ | |
675 | if (s.sparedisks) { | |
676 | pr_err("spare-devices set twice: %d and %s\n", | |
677 | s.sparedisks, optarg); | |
678 | exit(2); | |
679 | } | |
680 | if (s.level != UnSet && s.level <= 0 && s.level >= -1) { | |
681 | pr_err("spare-devices setting is incompatible with raid level %d\n", | |
682 | s.level); | |
683 | exit(2); | |
684 | } | |
685 | if (parse_num(&s.sparedisks, optarg) != 0 || s.sparedisks < 0) { | |
686 | pr_err("invalid number of spare-devices: %s\n", | |
687 | optarg); | |
688 | exit(2); | |
689 | } | |
690 | continue; | |
691 | ||
692 | case O(CREATE,'a'): | |
693 | case O(CREATE,Auto): | |
694 | case O(BUILD,'a'): | |
695 | case O(BUILD,Auto): | |
696 | case O(INCREMENTAL,'a'): | |
697 | case O(INCREMENTAL,Auto): | |
698 | case O(ASSEMBLE,'a'): | |
699 | case O(ASSEMBLE,Auto): /* auto-creation of device node */ | |
700 | c.autof = parse_auto(optarg, "--auto flag", 0); | |
701 | continue; | |
702 | case O(BUILD,'f'): /* force honouring '-n 1' */ | |
703 | case O(BUILD,Force): /* force honouring '-n 1' */ | |
704 | case O(GROW,'f'): /* ditto */ | |
705 | case O(GROW,Force): /* ditto */ | |
706 | case O(CREATE,'f'): /* force honouring of device list */ | |
707 | case O(CREATE,Force): /* force honouring of device list */ | |
708 | case O(ASSEMBLE,'f'): /* force assembly */ | |
709 | case O(ASSEMBLE,Force): /* force assembly */ | |
710 | case O(MISC,'f'): /* force zero */ | |
711 | case O(MISC,Force): /* force zero */ | |
712 | case O(MANAGE,Force): /* add device which is too large */ | |
713 | c.force = 1; | |
714 | continue; | |
715 | /* now for the Assemble options */ | |
716 | case O(ASSEMBLE, FreezeReshape): /* Freeze reshape during | |
717 | * initrd phase */ | |
718 | case O(INCREMENTAL, FreezeReshape): | |
719 | c.freeze_reshape = 1; | |
720 | continue; | |
721 | case O(CREATE,'u'): /* uuid of array */ | |
722 | case O(ASSEMBLE,'u'): /* uuid of array */ | |
723 | if (ident.uuid_set) { | |
724 | pr_err("uuid cannot be set twice. Second value %s.\n", optarg); | |
725 | exit(2); | |
726 | } | |
727 | if (parse_uuid(optarg, ident.uuid)) | |
728 | ident.uuid_set = 1; | |
729 | else { | |
730 | pr_err("Bad uuid: %s\n", optarg); | |
731 | exit(2); | |
732 | } | |
733 | continue; | |
734 | ||
735 | case O(CREATE,'N'): | |
736 | case O(ASSEMBLE,'N'): | |
737 | case O(MISC,'N'): | |
738 | if (mode == MISC && !c.subarray) { | |
739 | pr_err("-N/--name only valid with --update-subarray in misc mode\n"); | |
740 | exit(2); | |
741 | } | |
742 | ||
743 | if (ident_set_name(&ident, optarg) != MDADM_STATUS_SUCCESS) | |
744 | exit(2); | |
745 | ||
746 | continue; | |
747 | ||
748 | case O(ASSEMBLE,'m'): /* super-minor for array */ | |
749 | case O(ASSEMBLE,SuperMinor): | |
750 | if (ident.super_minor != UnSet) { | |
751 | pr_err("super-minor cannot be set twice. Second value: %s.\n", optarg); | |
752 | exit(2); | |
753 | } | |
754 | if (strcmp(optarg, "dev") == 0) | |
755 | ident.super_minor = -2; | |
756 | else if (parse_num(&ident.super_minor, optarg) != 0 || ident.super_minor < 0) { | |
757 | pr_err("Bad super-minor number: %s.\n", optarg); | |
758 | exit(2); | |
759 | } | |
760 | continue; | |
761 | ||
762 | case O(ASSEMBLE,'o'): | |
763 | case O(MANAGE,'o'): | |
764 | case O(CREATE,'o'): | |
765 | c.readonly = 1; | |
766 | continue; | |
767 | ||
768 | case O(ASSEMBLE,'U'): /* update the superblock */ | |
769 | case O(MISC,'U'): { | |
770 | enum update_opt print_mode = UOPT_HELP; | |
771 | const char *error_addon = "update option"; | |
772 | ||
773 | if (c.update) { | |
774 | pr_err("Can only update one aspect of superblock, both %s and %s given.\n", | |
775 | map_num(update_options, c.update), optarg); | |
776 | exit(2); | |
777 | } | |
778 | if (mode == MISC && !c.subarray) { | |
779 | pr_err("Only subarrays can be updated in misc mode\n"); | |
780 | exit(2); | |
781 | } | |
782 | ||
783 | c.update = map_name(update_options, optarg); | |
784 | ||
785 | if (devmode == UpdateSubarray) { | |
786 | print_mode = UOPT_SUBARRAY_ONLY; | |
787 | error_addon = "update-subarray option"; | |
788 | ||
789 | if (c.update > UOPT_SUBARRAY_ONLY && c.update < UOPT_HELP) | |
790 | c.update = UOPT_UNDEFINED; | |
791 | } | |
792 | ||
793 | switch (c.update) { | |
794 | case UOPT_UNDEFINED: | |
795 | pr_err("'--update=%s' is invalid %s. ", | |
796 | optarg, error_addon); | |
797 | outf = stderr; | |
798 | case UOPT_HELP: | |
799 | if (!outf) | |
800 | outf = stdout; | |
801 | fprint_update_options(outf, print_mode); | |
802 | exit(outf == stdout ? 0 : 2); | |
803 | case UOPT_BYTEORDER: | |
804 | if (ss) { | |
805 | pr_err("must not set metadata type with --update=byteorder.\n"); | |
806 | exit(2); | |
807 | } | |
808 | default: | |
809 | break; | |
810 | } | |
811 | continue; | |
812 | } | |
813 | case O(MANAGE,'U'): | |
814 | /* update=devicesize is allowed with --re-add */ | |
815 | if (devmode != 'A') { | |
816 | pr_err("--update in Manage mode only allowed with --re-add.\n"); | |
817 | exit(1); | |
818 | } | |
819 | if (c.update) { | |
820 | pr_err("Can only update one aspect of superblock, both %s and %s given.\n", | |
821 | map_num(update_options, c.update), optarg); | |
822 | exit(2); | |
823 | } | |
824 | c.update = map_name(update_options, optarg); | |
825 | if (c.update != UOPT_DEVICESIZE && | |
826 | c.update != UOPT_BBL && | |
827 | c.update != UOPT_NO_BBL && | |
828 | c.update != UOPT_FORCE_NO_BBL) { | |
829 | pr_err("only 'devicesize', 'bbl', 'no-bbl', and 'force-no-bbl' can be updated with --re-add\n"); | |
830 | exit(2); | |
831 | } | |
832 | continue; | |
833 | ||
834 | case O(INCREMENTAL,NoDegraded): | |
835 | pr_err("--no-degraded is deprecated in Incremental mode\n"); | |
836 | case O(ASSEMBLE,NoDegraded): /* --no-degraded */ | |
837 | c.runstop = -1; /* --stop isn't allowed for --assemble, | |
838 | * so we overload slightly */ | |
839 | continue; | |
840 | ||
841 | case O(ASSEMBLE,'c'): | |
842 | case O(ASSEMBLE,ConfigFile): | |
843 | case O(INCREMENTAL, 'c'): | |
844 | case O(INCREMENTAL, ConfigFile): | |
845 | case O(MISC, 'c'): | |
846 | case O(MISC, ConfigFile): | |
847 | case O(MONITOR,'c'): | |
848 | case O(MONITOR,ConfigFile): | |
849 | case O(CREATE,ConfigFile): | |
850 | if (configfile) { | |
851 | pr_err("configfile cannot be set twice. Second value is %s.\n", optarg); | |
852 | exit(2); | |
853 | } | |
854 | configfile = optarg; | |
855 | set_conffile(configfile); | |
856 | /* FIXME possibly check that config file exists. Even parse it */ | |
857 | continue; | |
858 | case O(ASSEMBLE,'s'): /* scan */ | |
859 | case O(MISC,'s'): | |
860 | case O(MONITOR,'s'): | |
861 | case O(INCREMENTAL,'s'): | |
862 | c.scan = 1; | |
863 | continue; | |
864 | ||
865 | case O(MONITOR,'m'): /* mail address */ | |
866 | case O(MONITOR,EMail): | |
867 | if (mailaddr) | |
868 | pr_err("only specify one mailaddress. %s ignored.\n", | |
869 | optarg); | |
870 | else | |
871 | mailaddr = optarg; | |
872 | continue; | |
873 | ||
874 | case O(MONITOR,'p'): /* alert program */ | |
875 | case O(MONITOR,ProgramOpt): /* alert program */ | |
876 | if (program) | |
877 | pr_err("only specify one alter program. %s ignored.\n", | |
878 | optarg); | |
879 | else | |
880 | program = optarg; | |
881 | continue; | |
882 | ||
883 | case O(MONITOR,'r'): /* rebuild increments */ | |
884 | case O(MONITOR,Increment): | |
885 | if (parse_num(&increments, optarg) != 0 | |
886 | || increments > 99 || increments < 1) { | |
887 | pr_err("please specify positive integer between 1 and 99 as rebuild increments.\n"); | |
888 | exit(2); | |
889 | } | |
890 | continue; | |
891 | ||
892 | case O(MONITOR,'d'): /* delay in seconds */ | |
893 | case O(GROW, 'd'): | |
894 | case O(BUILD,'d'): /* delay for bitmap updates */ | |
895 | case O(CREATE,'d'): | |
896 | if (c.delay) | |
897 | pr_err("only specify delay once. %s ignored.\n", optarg); | |
898 | else if (parse_num(&c.delay, optarg) != 0 || c.delay < 1) { | |
899 | pr_err("invalid delay: %s\n", optarg); | |
900 | exit(2); | |
901 | } | |
902 | continue; | |
903 | case O(MONITOR,'f'): /* daemonise */ | |
904 | case O(MONITOR,Fork): | |
905 | daemonise = 1; | |
906 | continue; | |
907 | case O(MONITOR,'i'): /* pid */ | |
908 | if (pidfile) | |
909 | pr_err("only specify one pid file. %s ignored.\n", | |
910 | optarg); | |
911 | else | |
912 | pidfile = optarg; | |
913 | continue; | |
914 | case O(MONITOR,'1'): /* oneshot */ | |
915 | oneshot = 1; | |
916 | spare_sharing = 0; | |
917 | continue; | |
918 | case O(MONITOR,'t'): /* test */ | |
919 | c.test = 1; | |
920 | continue; | |
921 | case O(MONITOR,'y'): /* log messages to syslog */ | |
922 | openlog("mdadm", LOG_PID, SYSLOG_FACILITY); | |
923 | dosyslog = 1; | |
924 | continue; | |
925 | case O(MONITOR, NoSharing): | |
926 | spare_sharing = 0; | |
927 | continue; | |
928 | ||
929 | /* now the general management options. Some are applicable | |
930 | * to other modes. None have arguments. | |
931 | */ | |
932 | case O(GROW,'a'): | |
933 | case O(GROW,Add): | |
934 | case O(MANAGE,'a'): | |
935 | case O(MANAGE,Add): /* add a drive */ | |
936 | devmode = 'a'; | |
937 | continue; | |
938 | case O(MANAGE,AddSpare): /* add drive - never re-add */ | |
939 | devmode = 'S'; | |
940 | continue; | |
941 | case O(MANAGE,AddJournal): /* add journal */ | |
942 | if (s.journaldisks && (s.level < 4 || s.level > 6)) { | |
943 | pr_err("--add-journal is only supported for RAID level 4/5/6.\n"); | |
944 | exit(2); | |
945 | } | |
946 | devmode = 'j'; | |
947 | continue; | |
948 | case O(MANAGE,ReAdd): | |
949 | devmode = 'A'; | |
950 | continue; | |
951 | case O(MANAGE,'r'): /* remove a drive */ | |
952 | case O(MANAGE,Remove): | |
953 | devmode = 'r'; | |
954 | continue; | |
955 | case O(MANAGE,'f'): /* set faulty */ | |
956 | case O(MANAGE,Fail): | |
957 | case O(INCREMENTAL,'f'): | |
958 | case O(INCREMENTAL,Remove): | |
959 | case O(INCREMENTAL,Fail): /* r for incremental is taken, use f | |
960 | * even though we will both fail and | |
961 | * remove the device */ | |
962 | devmode = 'f'; | |
963 | continue; | |
964 | case O(MANAGE, ClusterConfirm): | |
965 | devmode = 'c'; | |
966 | continue; | |
967 | case O(MANAGE,Replace): | |
968 | /* Mark these devices for replacement */ | |
969 | devmode = 'R'; | |
970 | continue; | |
971 | case O(MANAGE,With): | |
972 | /* These are the replacements to use */ | |
973 | if (devmode != 'R') { | |
974 | pr_err("--with must follow --replace\n"); | |
975 | exit(2); | |
976 | } | |
977 | devmode = 'W'; | |
978 | continue; | |
979 | case O(INCREMENTAL,'R'): | |
980 | case O(MANAGE,'R'): | |
981 | case O(ASSEMBLE,'R'): | |
982 | case O(BUILD,'R'): | |
983 | case O(CREATE,'R'): /* Run the array */ | |
984 | if (c.runstop < 0) { | |
985 | pr_err("Cannot both Stop and Run an array\n"); | |
986 | exit(2); | |
987 | } | |
988 | c.runstop = 1; | |
989 | continue; | |
990 | case O(MANAGE,'S'): | |
991 | if (c.runstop > 0) { | |
992 | pr_err("Cannot both Run and Stop an array\n"); | |
993 | exit(2); | |
994 | } | |
995 | c.runstop = -1; | |
996 | continue; | |
997 | case O(MANAGE,'t'): | |
998 | c.test = 1; | |
999 | continue; | |
1000 | ||
1001 | case O(MISC,'Q'): | |
1002 | case O(MISC,'D'): | |
1003 | case O(MISC,'E'): | |
1004 | case O(MISC,KillOpt): | |
1005 | case O(MISC,'R'): | |
1006 | case O(MISC,'S'): | |
1007 | case O(MISC,'X'): | |
1008 | case O(MISC, ExamineBB): | |
1009 | case O(MISC,'o'): | |
1010 | case O(MISC,'w'): | |
1011 | case O(MISC,'W'): | |
1012 | case O(MISC, WaitOpt): | |
1013 | case O(MISC, Waitclean): | |
1014 | case O(MISC, DetailPlatform): | |
1015 | case O(MISC, KillSubarray): | |
1016 | case O(MISC, UpdateSubarray): | |
1017 | case O(MISC, Dump): | |
1018 | case O(MISC, Restore): | |
1019 | case O(MISC ,Action): | |
1020 | if (opt == KillSubarray || opt == UpdateSubarray) { | |
1021 | if (c.subarray) { | |
1022 | pr_err("subarray can only be specified once\n"); | |
1023 | exit(2); | |
1024 | } | |
1025 | c.subarray = optarg; | |
1026 | } | |
1027 | if (opt == Action) { | |
1028 | if (c.action) { | |
1029 | pr_err("Only one --action can be specified\n"); | |
1030 | exit(2); | |
1031 | } | |
1032 | if (strcmp(optarg, "idle") == 0 || | |
1033 | strcmp(optarg, "frozen") == 0 || | |
1034 | strcmp(optarg, "check") == 0 || | |
1035 | strcmp(optarg, "repair") == 0) | |
1036 | c.action = optarg; | |
1037 | else { | |
1038 | pr_err("action must be one of idle, frozen, check, repair\n"); | |
1039 | exit(2); | |
1040 | } | |
1041 | } | |
1042 | if (devmode && devmode != opt && | |
1043 | (devmode == 'E' || | |
1044 | (opt == 'E' && devmode != 'Q'))) { | |
1045 | pr_err("--examine/-E cannot be given with "); | |
1046 | if (devmode == 'E') { | |
1047 | if (option_index >= 0) | |
1048 | fprintf(stderr, "--%s\n", | |
1049 | long_options[option_index].name); | |
1050 | else | |
1051 | fprintf(stderr, "-%c\n", opt); | |
1052 | } else if (isalpha(devmode)) | |
1053 | fprintf(stderr, "-%c\n", devmode); | |
1054 | else | |
1055 | fprintf(stderr, "previous option\n"); | |
1056 | exit(2); | |
1057 | } | |
1058 | devmode = opt; | |
1059 | if (opt == Dump || opt == Restore) { | |
1060 | if (dump_directory != NULL) { | |
1061 | pr_err("dump/restore directory specified twice: %s and %s\n", | |
1062 | dump_directory, optarg); | |
1063 | exit(2); | |
1064 | } | |
1065 | dump_directory = optarg; | |
1066 | } | |
1067 | continue; | |
1068 | case O(MISC, UdevRules): | |
1069 | if (devmode && devmode != opt) { | |
1070 | pr_err("--udev-rules must be the only option.\n"); | |
1071 | } else { | |
1072 | if (udev_filename) | |
1073 | pr_err("only specify one udev rule filename. %s ignored.\n", | |
1074 | optarg); | |
1075 | else | |
1076 | udev_filename = optarg; | |
1077 | } | |
1078 | devmode = opt; | |
1079 | continue; | |
1080 | case O(MISC,'t'): | |
1081 | c.test = 1; | |
1082 | continue; | |
1083 | ||
1084 | case O(MISC, Sparc22): | |
1085 | if (devmode != 'E') { | |
1086 | pr_err("--sparc2.2 only allowed with --examine\n"); | |
1087 | exit(2); | |
1088 | } | |
1089 | c.SparcAdjust = 1; | |
1090 | continue; | |
1091 | ||
1092 | case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */ | |
1093 | case O(ASSEMBLE,Bitmap): | |
1094 | if (!optarg) { | |
1095 | pr_err("bitmap file needed with -b in --assemble mode\n"); | |
1096 | exit(2); | |
1097 | } | |
1098 | if (strcmp(optarg, "internal") == 0 || | |
1099 | strcmp(optarg, "clustered") == 0) { | |
1100 | pr_err("no need to specify --bitmap when assembling" | |
1101 | " arrays with internal or clustered bitmap\n"); | |
1102 | continue; | |
1103 | } | |
1104 | bitmap_fd = open(optarg, O_RDWR); | |
1105 | if (!*optarg || bitmap_fd < 0) { | |
1106 | pr_err("cannot open bitmap file %s: %s\n", optarg, strerror(errno)); | |
1107 | exit(2); | |
1108 | } | |
1109 | ident.bitmap_fd = bitmap_fd; /* for Assemble */ | |
1110 | continue; | |
1111 | ||
1112 | case O(ASSEMBLE, BackupFile): | |
1113 | case O(GROW, BackupFile): | |
1114 | /* Specify a file into which grow might place a backup, | |
1115 | * or from which assemble might recover a backup | |
1116 | */ | |
1117 | if (c.backup_file) { | |
1118 | pr_err("backup file already specified, rejecting %s\n", optarg); | |
1119 | exit(2); | |
1120 | } | |
1121 | c.backup_file = optarg; | |
1122 | continue; | |
1123 | ||
1124 | case O(GROW, Continue): | |
1125 | /* Continue interrupted grow | |
1126 | */ | |
1127 | grow_continue = 1; | |
1128 | continue; | |
1129 | case O(ASSEMBLE, InvalidBackup): | |
1130 | /* Acknowledge that the backupfile is invalid, but ask | |
1131 | * to continue anyway | |
1132 | */ | |
1133 | c.invalid_backup = 1; | |
1134 | continue; | |
1135 | ||
1136 | case O(BUILD,'b'): | |
1137 | case O(BUILD,Bitmap): | |
1138 | case O(CREATE,'b'): | |
1139 | case O(CREATE,Bitmap): /* here we create the bitmap */ | |
1140 | case O(GROW,'b'): | |
1141 | case O(GROW,Bitmap): | |
1142 | if (set_bitmap_value(&s, &c, optarg)) | |
1143 | exit(2); | |
1144 | continue; | |
1145 | case O(GROW,BitmapChunk): | |
1146 | case O(BUILD,BitmapChunk): | |
1147 | case O(CREATE,BitmapChunk): /* bitmap chunksize */ | |
1148 | s.bitmap_chunk = parse_size(optarg); | |
1149 | if (s.bitmap_chunk == 0 || | |
1150 | s.bitmap_chunk == INVALID_SECTORS || | |
1151 | s.bitmap_chunk & (s.bitmap_chunk - 1)) { | |
1152 | pr_err("invalid bitmap chunksize: %s\n", | |
1153 | optarg); | |
1154 | exit(2); | |
1155 | } | |
1156 | s.bitmap_chunk = s.bitmap_chunk * 512; | |
1157 | continue; | |
1158 | ||
1159 | case O(GROW, WriteBehind): | |
1160 | case O(BUILD, WriteBehind): | |
1161 | case O(CREATE, WriteBehind): | |
1162 | s.write_behind = DEFAULT_MAX_WRITE_BEHIND; | |
1163 | if (optarg && | |
1164 | (parse_num(&s.write_behind, optarg) != 0 || | |
1165 | s.write_behind < 0 || s.write_behind > 16383)) { | |
1166 | pr_err("Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", | |
1167 | optarg); | |
1168 | exit(2); | |
1169 | } | |
1170 | continue; | |
1171 | case O(INCREMENTAL, 'r'): | |
1172 | case O(INCREMENTAL, RebuildMapOpt): | |
1173 | rebuild_map = 1; | |
1174 | continue; | |
1175 | case O(INCREMENTAL, IncrementalPath): | |
1176 | remove_path = optarg; | |
1177 | continue; | |
1178 | case O(CREATE, WriteJournal): | |
1179 | if (s.journaldisks) { | |
1180 | pr_err("Please specify only one journal device for the array.\n"); | |
1181 | pr_err("Ignoring --write-journal %s...\n", optarg); | |
1182 | continue; | |
1183 | } | |
1184 | dv = xmalloc(sizeof(*dv)); | |
1185 | dv->devname = optarg; | |
1186 | dv->disposition = 'j'; /* WriteJournal */ | |
1187 | dv->used = 0; | |
1188 | dv->next = NULL; | |
1189 | *devlistend = dv; | |
1190 | devlistend = &dv->next; | |
1191 | devs_found++; | |
1192 | ||
1193 | s.journaldisks = 1; | |
1194 | continue; | |
1195 | case O(CREATE, 'k'): | |
1196 | case O(GROW, 'k'): | |
1197 | s.consistency_policy = map_name(consistency_policies, | |
1198 | optarg); | |
1199 | if (s.consistency_policy < CONSISTENCY_POLICY_RESYNC) { | |
1200 | pr_err("Invalid consistency policy: %s\n", | |
1201 | optarg); | |
1202 | exit(2); | |
1203 | } | |
1204 | continue; | |
1205 | } | |
1206 | /* We have now processed all the valid options. Anything else is | |
1207 | * an error | |
1208 | */ | |
1209 | if (option_index > 0) | |
1210 | pr_err(":option --%s not valid in %s mode\n", | |
1211 | long_options[option_index].name, | |
1212 | map_num_s(modes, mode)); | |
1213 | else | |
1214 | pr_err("option -%c not valid in %s mode\n", | |
1215 | opt, map_num_s(modes, mode)); | |
1216 | exit(2); | |
1217 | ||
1218 | } | |
1219 | ||
1220 | if (print_help) { | |
1221 | char *help_text; | |
1222 | if (print_help == 2) | |
1223 | help_text = OptionHelp; | |
1224 | else | |
1225 | help_text = mode_help[mode]; | |
1226 | if (help_text == NULL) | |
1227 | help_text = Help; | |
1228 | fputs(help_text,stdout); | |
1229 | exit(0); | |
1230 | } | |
1231 | ||
1232 | if (s.journaldisks) { | |
1233 | if (s.level < 4 || s.level > 6) { | |
1234 | pr_err("--write-journal is only supported for RAID level 4/5/6.\n"); | |
1235 | exit(2); | |
1236 | } | |
1237 | if (s.consistency_policy != CONSISTENCY_POLICY_UNKNOWN && | |
1238 | s.consistency_policy != CONSISTENCY_POLICY_JOURNAL) { | |
1239 | pr_err("--write-journal is not supported with consistency policy: %s\n", | |
1240 | map_num_s(consistency_policies, s.consistency_policy)); | |
1241 | exit(2); | |
1242 | } | |
1243 | } | |
1244 | ||
1245 | if (mode == CREATE && | |
1246 | s.consistency_policy != CONSISTENCY_POLICY_UNKNOWN) { | |
1247 | if (s.level <= 0) { | |
1248 | pr_err("--consistency-policy not meaningful with level %s.\n", | |
1249 | map_num_s(pers, s.level)); | |
1250 | exit(2); | |
1251 | } else if (s.consistency_policy == CONSISTENCY_POLICY_JOURNAL && | |
1252 | !s.journaldisks) { | |
1253 | pr_err("--write-journal is required for consistency policy: %s\n", | |
1254 | map_num_s(consistency_policies, s.consistency_policy)); | |
1255 | exit(2); | |
1256 | } else if (s.consistency_policy == CONSISTENCY_POLICY_PPL && | |
1257 | s.level != 5) { | |
1258 | pr_err("PPL consistency policy is only supported for RAID level 5.\n"); | |
1259 | exit(2); | |
1260 | } else if (s.consistency_policy == CONSISTENCY_POLICY_BITMAP && | |
1261 | (!s.bitmap_file || str_is_none(s.bitmap_file) == true)) { | |
1262 | pr_err("--bitmap is required for consistency policy: %s\n", | |
1263 | map_num_s(consistency_policies, s.consistency_policy)); | |
1264 | exit(2); | |
1265 | } else if (s.bitmap_file && | |
1266 | str_is_none(s.bitmap_file) == false && | |
1267 | s.consistency_policy != CONSISTENCY_POLICY_BITMAP && | |
1268 | s.consistency_policy != CONSISTENCY_POLICY_JOURNAL) { | |
1269 | pr_err("--bitmap is not compatible with consistency policy: %s\n", | |
1270 | map_num_s(consistency_policies, s.consistency_policy)); | |
1271 | exit(2); | |
1272 | } | |
1273 | } | |
1274 | ||
1275 | if (s.write_zeroes && !s.assume_clean) { | |
1276 | pr_info("Disk zeroing requested, setting --assume-clean to skip resync\n"); | |
1277 | s.assume_clean = 1; | |
1278 | } | |
1279 | ||
1280 | if (!mode && devs_found) { | |
1281 | mode = MISC; | |
1282 | devmode = 'Q'; | |
1283 | if (devlist->disposition == 0) | |
1284 | devlist->disposition = devmode; | |
1285 | } | |
1286 | if (!mode) { | |
1287 | fputs(Usage, stderr); | |
1288 | exit(2); | |
1289 | } | |
1290 | ||
1291 | /* Ok, got the option parsing out of the way | |
1292 | * hopefully it's mostly right but there might be some stuff | |
1293 | * missing | |
1294 | * | |
1295 | * That is mostly checked in the per-mode stuff but... | |
1296 | * | |
1297 | * For @,B,C and A without -s, the first device listed must be | |
1298 | * an md device. We check that here and open it. | |
1299 | */ | |
1300 | ||
1301 | if (mode == MANAGE || mode == BUILD || mode == CREATE || | |
1302 | mode == GROW || (mode == ASSEMBLE && ! c.scan)) { | |
1303 | struct stat stb; | |
1304 | int ret; | |
1305 | ||
1306 | if (devs_found < 1) { | |
1307 | pr_err("an md device must be given in this mode\n"); | |
1308 | exit(2); | |
1309 | } | |
1310 | if (ident_set_devname(&ident, devlist->devname) != MDADM_STATUS_SUCCESS) | |
1311 | exit(1); | |
1312 | ||
1313 | if ((int)ident.super_minor == -2 && c.autof) { | |
1314 | pr_err("--super-minor=dev is incompatible with --auto\n"); | |
1315 | exit(2); | |
1316 | } | |
1317 | if (mode == MANAGE || mode == GROW) { | |
1318 | mdfd = open_mddev(ident.devname, 1); | |
1319 | if (mdfd < 0) | |
1320 | exit(1); | |
1321 | ||
1322 | ret = fstat(mdfd, &stb); | |
1323 | if (ret) { | |
1324 | pr_err("fstat failed on %s.\n", ident.devname); | |
1325 | exit(1); | |
1326 | } | |
1327 | } else { | |
1328 | ret = stat(ident.devname, &stb); | |
1329 | if (ident.super_minor == -2 && ret != 0) { | |
1330 | pr_err("--super-minor=dev given, and listed device %s doesn't exist.\n", | |
1331 | ident.devname); | |
1332 | exit(1); | |
1333 | } | |
1334 | ||
1335 | if (!ret && !stat_is_md_dev(&stb)) { | |
1336 | pr_err("device %s exists but is not an md array.\n", ident.devname); | |
1337 | exit(1); | |
1338 | } | |
1339 | } | |
1340 | if (ident.super_minor == -2) | |
1341 | ident.super_minor = minor(stb.st_rdev); | |
1342 | } | |
1343 | ||
1344 | if (s.raiddisks) { | |
1345 | if (s.raiddisks == 1 && !c.force && s.level != LEVEL_FAULTY) { | |
1346 | pr_err("'1' is an unusual number of drives for an array, so it is probably\n" | |
1347 | " a mistake. If you really mean it you will need to specify --force before\n" | |
1348 | " setting the number of drives.\n"); | |
1349 | exit(2); | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | if (c.homehost == NULL && c.require_homehost) | |
1354 | c.homehost = conf_get_homehost(&c.require_homehost); | |
1355 | if (c.homehost == NULL || strcasecmp(c.homehost, "<system>") == 0) { | |
1356 | if (s_gethostname(sys_hostname, sizeof(sys_hostname)) == 0) { | |
1357 | c.homehost = sys_hostname; | |
1358 | } | |
1359 | } | |
1360 | if (c.homehost && | |
1361 | (!c.homehost[0] || strcasecmp(c.homehost, "<none>") == 0)) { | |
1362 | c.homehost = NULL; | |
1363 | c.require_homehost = 0; | |
1364 | } | |
1365 | ||
1366 | rv = 0; | |
1367 | ||
1368 | set_hooks(); /* set hooks from libs */ | |
1369 | ||
1370 | if (c.homecluster == NULL && (c.nodes > 0)) { | |
1371 | c.homecluster = conf_get_homecluster(); | |
1372 | if (c.homecluster == NULL) | |
1373 | rv = get_cluster_name(&c.homecluster); | |
1374 | if (rv) { | |
1375 | pr_err("The md can't get cluster name\n"); | |
1376 | exit(1); | |
1377 | } | |
1378 | } | |
1379 | ||
1380 | if (c.update && c.update == UOPT_NODES && c.nodes == 0) { | |
1381 | pr_err("Please specify nodes number with --nodes\n"); | |
1382 | exit(1); | |
1383 | } | |
1384 | ||
1385 | if (c.backup_file && s.data_offset != INVALID_SECTORS) { | |
1386 | pr_err("--backup-file and --data-offset are incompatible\n"); | |
1387 | exit(2); | |
1388 | } | |
1389 | ||
1390 | if ((mode == MISC && devmode == 'E') || | |
1391 | (mode == MONITOR && spare_sharing == 0)) | |
1392 | /* Anyone may try this */; | |
1393 | else if (geteuid() != 0) { | |
1394 | pr_err("must be super-user to perform this action\n"); | |
1395 | exit(1); | |
1396 | } | |
1397 | ||
1398 | ident.autof = c.autof; | |
1399 | ||
1400 | if (c.scan && c.verbose < 2) | |
1401 | /* --scan implied --brief unless -vv */ | |
1402 | c.brief = 1; | |
1403 | ||
1404 | if (mode == CREATE) { | |
1405 | if (s.bitmap_file && strcmp(s.bitmap_file, "clustered") == 0) { | |
1406 | locked = cluster_get_dlmlock(); | |
1407 | if (locked != 1) | |
1408 | exit(1); | |
1409 | } | |
1410 | } else if (mode == MANAGE || mode == GROW || mode == INCREMENTAL) { | |
1411 | if (!md_get_array_info(mdfd, &array) && (devmode != 'c')) { | |
1412 | if (array.state & (1 << MD_SB_CLUSTERED)) { | |
1413 | locked = cluster_get_dlmlock(); | |
1414 | if (locked != 1) | |
1415 | exit(1); | |
1416 | } | |
1417 | } | |
1418 | } | |
1419 | ||
1420 | switch(mode) { | |
1421 | case MANAGE: | |
1422 | /* readonly, add/remove, readwrite, runstop */ | |
1423 | if (c.readonly > 0) | |
1424 | rv = Manage_ro(ident.devname, mdfd, c.readonly); | |
1425 | if (!rv && devs_found > 1) | |
1426 | rv = Manage_subdevs(ident.devname, mdfd, | |
1427 | devlist->next, c.verbose, | |
1428 | c.test, c.update, c.force); | |
1429 | if (!rv && c.readonly < 0) | |
1430 | rv = Manage_ro(ident.devname, mdfd, c.readonly); | |
1431 | if (!rv && c.runstop > 0) | |
1432 | rv = Manage_run(ident.devname, mdfd, &c); | |
1433 | if (!rv && c.runstop < 0) | |
1434 | rv = Manage_stop(ident.devname, mdfd, c.verbose, 0); | |
1435 | break; | |
1436 | case ASSEMBLE: | |
1437 | if (!c.scan && c.runstop == -1) { | |
1438 | pr_err("--no-degraded not meaningful without a --scan assembly.\n"); | |
1439 | exit(1); | |
1440 | } else if (devs_found == 1 && ident.uuid_set == 0 && | |
1441 | ident.super_minor == UnSet && ident.name[0] == 0 && | |
1442 | !c.scan) { | |
1443 | /* Only a device has been given, so get details from config file */ | |
1444 | struct mddev_ident *array_ident = conf_get_ident(ident.devname); | |
1445 | if (array_ident == NULL) { | |
1446 | pr_err("%s not identified in config file.\n", ident.devname); | |
1447 | rv |= 1; | |
1448 | if (mdfd >= 0) | |
1449 | close(mdfd); | |
1450 | } else { | |
1451 | if (array_ident->autof == 0) | |
1452 | array_ident->autof = c.autof; | |
1453 | rv |= Assemble(ss, ident.devname, array_ident, NULL, &c); | |
1454 | } | |
1455 | } else if (!c.scan) | |
1456 | rv = Assemble(ss, ident.devname, &ident, devlist->next, &c); | |
1457 | else if (devs_found > 0) { | |
1458 | if (c.update && devs_found > 1) { | |
1459 | pr_err("can only update a single array at a time\n"); | |
1460 | exit(1); | |
1461 | } | |
1462 | if (c.backup_file && devs_found > 1) { | |
1463 | pr_err("can only assemble a single array when providing a backup file.\n"); | |
1464 | exit(1); | |
1465 | } | |
1466 | for (dv = devlist; dv; dv = dv->next) { | |
1467 | struct mddev_ident *array_ident = conf_get_ident(dv->devname); | |
1468 | if (array_ident == NULL) { | |
1469 | pr_err("%s not identified in config file.\n", | |
1470 | dv->devname); | |
1471 | rv |= 1; | |
1472 | continue; | |
1473 | } | |
1474 | if (array_ident->autof == 0) | |
1475 | array_ident->autof = c.autof; | |
1476 | rv |= Assemble(ss, dv->devname, array_ident, | |
1477 | NULL, &c); | |
1478 | } | |
1479 | } else { | |
1480 | if (c.update) { | |
1481 | pr_err("--update not meaningful with a --scan assembly.\n"); | |
1482 | exit(1); | |
1483 | } | |
1484 | if (c.backup_file) { | |
1485 | pr_err("--backup_file not meaningful with a --scan assembly.\n"); | |
1486 | exit(1); | |
1487 | } | |
1488 | rv = scan_assemble(ss, &c, &ident); | |
1489 | } | |
1490 | ||
1491 | break; | |
1492 | case BUILD: | |
1493 | if (c.delay == 0) | |
1494 | c.delay = DEFAULT_BITMAP_DELAY; | |
1495 | if (s.write_behind && !s.bitmap_file) { | |
1496 | pr_err("write-behind mode requires a bitmap.\n"); | |
1497 | rv = 1; | |
1498 | break; | |
1499 | } | |
1500 | if (s.raiddisks == 0) { | |
1501 | pr_err("no raid-devices specified.\n"); | |
1502 | rv = 1; | |
1503 | break; | |
1504 | } | |
1505 | ||
1506 | if (s.bitmap_file) { | |
1507 | if (strcmp(s.bitmap_file, "internal") == 0 || | |
1508 | strcmp(s.bitmap_file, "clustered") == 0) { | |
1509 | pr_err("'internal' and 'clustered' bitmaps not supported with --build\n"); | |
1510 | rv |= 1; | |
1511 | break; | |
1512 | } | |
1513 | } | |
1514 | rv = Build(&ident, devlist->next, &s, &c); | |
1515 | break; | |
1516 | case CREATE: | |
1517 | if (c.delay == 0) | |
1518 | c.delay = DEFAULT_BITMAP_DELAY; | |
1519 | ||
1520 | if (c.nodes) { | |
1521 | if (!s.bitmap_file || | |
1522 | strcmp(s.bitmap_file, "clustered") != 0) { | |
1523 | pr_err("--nodes argument only compatible with --bitmap=clustered\n"); | |
1524 | rv = 1; | |
1525 | break; | |
1526 | } | |
1527 | ||
1528 | if (s.level != 1 && s.level != 10) { | |
1529 | pr_err("--bitmap=clustered is currently supported with raid1/10 only\n"); | |
1530 | rv = 1; | |
1531 | break; | |
1532 | } | |
1533 | if (s.level == 10 && !(is_near_layout_10(s.layout) || s.layout == UnSet)) { | |
1534 | pr_err("only near layout is supported with clustered raid10\n"); | |
1535 | rv = 1; | |
1536 | break; | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | if (s.write_behind && !s.bitmap_file) { | |
1541 | pr_err("write-behind mode requires a bitmap.\n"); | |
1542 | rv = 1; | |
1543 | break; | |
1544 | } | |
1545 | if (s.raiddisks == 0) { | |
1546 | pr_err("no raid-devices specified.\n"); | |
1547 | rv = 1; | |
1548 | break; | |
1549 | } | |
1550 | ||
1551 | rv = Create(ss, &ident, devs_found - 1, devlist->next, &s, &c); | |
1552 | break; | |
1553 | case MISC: | |
1554 | if (devmode == 'E') { | |
1555 | if (devlist == NULL && !c.scan) { | |
1556 | pr_err("No devices to examine\n"); | |
1557 | exit(2); | |
1558 | } | |
1559 | if (devlist == NULL) | |
1560 | devlist = conf_get_devs(); | |
1561 | if (devlist == NULL) { | |
1562 | pr_err("No devices listed in %s\n", configfile?configfile:DefaultConfFile); | |
1563 | exit(1); | |
1564 | } | |
1565 | rv = Examine(devlist, &c, ss); | |
1566 | } else if (devmode == DetailPlatform) { | |
1567 | rv = Detail_Platform(ss ? ss->ss : NULL, ss ? c.scan : 1, | |
1568 | c.verbose, c.export, | |
1569 | devlist ? devlist->devname : NULL); | |
1570 | } else if (devlist == NULL) { | |
1571 | if (devmode == 'S' && c.scan) | |
1572 | rv = stop_scan(c.verbose); | |
1573 | else if ((devmode == 'D' || devmode == Waitclean) && | |
1574 | c.scan) | |
1575 | rv = misc_scan(devmode, &c); | |
1576 | else if (devmode == UdevRules) | |
1577 | rv = Write_rules(udev_filename); | |
1578 | else { | |
1579 | pr_err("No devices given.\n"); | |
1580 | exit(2); | |
1581 | } | |
1582 | } else | |
1583 | rv = misc_list(devlist, &ident, dump_directory, ss, &c); | |
1584 | break; | |
1585 | case MONITOR: | |
1586 | if (!devlist && !c.scan) { | |
1587 | pr_err("Cannot monitor: need --scan or at least one device\n"); | |
1588 | rv = 1; | |
1589 | break; | |
1590 | } | |
1591 | if (pidfile && !daemonise) { | |
1592 | pr_err("Cannot write a pid file when not in daemon mode\n"); | |
1593 | rv = 1; | |
1594 | break; | |
1595 | } | |
1596 | if (c.delay == 0) { | |
1597 | c.delay = conf_get_monitor_delay(); | |
1598 | if (!c.delay) | |
1599 | c.delay = 60; | |
1600 | } | |
1601 | rv = Monitor(devlist, mailaddr, program, | |
1602 | &c, daemonise, oneshot, | |
1603 | dosyslog, pidfile, increments, | |
1604 | spare_sharing); | |
1605 | break; | |
1606 | ||
1607 | case GROW: | |
1608 | if (array_size > 0) { | |
1609 | /* alway impose array size first, independent of | |
1610 | * anything else | |
1611 | * Do not allow level or raid_disks changes at the | |
1612 | * same time as that can be irreversibly destructive. | |
1613 | */ | |
1614 | struct mdinfo sra; | |
1615 | int err; | |
1616 | if (s.raiddisks || s.level != UnSet) { | |
1617 | pr_err("cannot change array size in same operation as changing raiddisks or level.\n" | |
1618 | " Change size first, then check that data is still intact.\n"); | |
1619 | rv = 1; | |
1620 | break; | |
1621 | } | |
1622 | if (sysfs_init(&sra, mdfd, NULL)) { | |
1623 | rv = 1; | |
1624 | break; | |
1625 | } | |
1626 | if (array_size == MAX_SIZE) | |
1627 | err = sysfs_set_str(&sra, NULL, "array_size", "default"); | |
1628 | else | |
1629 | err = sysfs_set_num(&sra, NULL, "array_size", array_size / 2); | |
1630 | if (err < 0) { | |
1631 | if (errno == E2BIG) | |
1632 | pr_err("--array-size setting is too large.\n"); | |
1633 | else | |
1634 | pr_err("current kernel does not support setting --array-size\n"); | |
1635 | rv = 1; | |
1636 | break; | |
1637 | } | |
1638 | } | |
1639 | if (devs_found > 1 && s.raiddisks == 0 && s.level == UnSet) { | |
1640 | /* must be '-a'. */ | |
1641 | if (s.size > 0 || s.chunk || | |
1642 | s.layout_str || s.bitmap_file) { | |
1643 | pr_err("--add cannot be used with other geometry changes in --grow mode\n"); | |
1644 | rv = 1; | |
1645 | break; | |
1646 | } | |
1647 | for (dv = devlist->next; dv; dv = dv->next) { | |
1648 | rv = Grow_Add_device(ident.devname, mdfd, dv->devname); | |
1649 | if (rv) | |
1650 | break; | |
1651 | } | |
1652 | } else if (s.bitmap_file) { | |
1653 | if (s.size > 0 || s.raiddisks || s.chunk || | |
1654 | s.layout_str || devs_found > 1) { | |
1655 | pr_err("--bitmap changes cannot be used with other geometry changes in --grow mode\n"); | |
1656 | rv = 1; | |
1657 | break; | |
1658 | } | |
1659 | if (c.delay == 0) | |
1660 | c.delay = DEFAULT_BITMAP_DELAY; | |
1661 | rv = Grow_addbitmap(ident.devname, mdfd, &c, &s); | |
1662 | } else if (grow_continue) | |
1663 | rv = Grow_continue_command(ident.devname, mdfd, &c); | |
1664 | else if (s.size > 0 || s.raiddisks || s.layout_str || | |
1665 | s.chunk != 0 || s.level != UnSet || | |
1666 | s.data_offset != INVALID_SECTORS) { | |
1667 | rv = Grow_reshape(ident.devname, mdfd, devlist->next, &c, &s); | |
1668 | } else if (s.consistency_policy != CONSISTENCY_POLICY_UNKNOWN) { | |
1669 | rv = Grow_consistency_policy(ident.devname, mdfd, &c, &s); | |
1670 | } else if (array_size == 0) | |
1671 | pr_err("no changes to --grow\n"); | |
1672 | break; | |
1673 | case INCREMENTAL: | |
1674 | if (rebuild_map) { | |
1675 | RebuildMap(); | |
1676 | } | |
1677 | if (c.scan) { | |
1678 | rv = 1; | |
1679 | if (devlist) { | |
1680 | pr_err("In --incremental mode, a device cannot be given with --scan.\n"); | |
1681 | break; | |
1682 | } | |
1683 | if (c.runstop <= 0) { | |
1684 | pr_err("--incremental --scan meaningless without --run.\n"); | |
1685 | break; | |
1686 | } | |
1687 | if (devmode == 'f') { | |
1688 | pr_err("--incremental --scan --fail not supported.\n"); | |
1689 | break; | |
1690 | } | |
1691 | rv = IncrementalScan(&c, NULL); | |
1692 | } | |
1693 | if (!devlist) { | |
1694 | if (!rebuild_map && !c.scan) { | |
1695 | pr_err("--incremental requires a device.\n"); | |
1696 | rv = 1; | |
1697 | } | |
1698 | break; | |
1699 | } | |
1700 | if (devmode == 'f') { | |
1701 | if (devlist->next) { | |
1702 | pr_err("'--incremental --fail' can only handle one device.\n"); | |
1703 | rv = 1; | |
1704 | break; | |
1705 | } | |
1706 | rv = IncrementalRemove(devlist->devname, remove_path, | |
1707 | c.verbose); | |
1708 | } else | |
1709 | rv = Incremental(devlist, &c, ss); | |
1710 | break; | |
1711 | case AUTODETECT: | |
1712 | autodetect(); | |
1713 | break; | |
1714 | } | |
1715 | if (ss) { | |
1716 | ss->ss->free_super(ss); | |
1717 | free(ss); | |
1718 | } | |
1719 | if (locked) | |
1720 | cluster_release_dlmlock(); | |
1721 | close_fd(&mdfd); | |
1722 | exit(rv); | |
1723 | } | |
1724 | ||
1725 | static int scan_assemble(struct supertype *ss, | |
1726 | struct context *c, | |
1727 | struct mddev_ident *ident) | |
1728 | { | |
1729 | struct mddev_ident *a, *array_list = conf_get_ident(NULL); | |
1730 | struct mddev_dev *devlist = conf_get_devs(); | |
1731 | struct map_ent *map = NULL; | |
1732 | int cnt = 0; | |
1733 | int rv = 0; | |
1734 | int failures, successes; | |
1735 | ||
1736 | if (conf_verify_devnames(array_list)) { | |
1737 | pr_err("Duplicate MD device names in conf file were found.\n"); | |
1738 | return 1; | |
1739 | } | |
1740 | if (devlist == NULL) { | |
1741 | pr_err("No devices listed in conf file were found.\n"); | |
1742 | return 1; | |
1743 | } | |
1744 | for (a = array_list; a; a = a->next) { | |
1745 | a->assembled = 0; | |
1746 | if (a->autof == 0) | |
1747 | a->autof = c->autof; | |
1748 | } | |
1749 | if (map_lock(&map)) | |
1750 | pr_err("failed to get exclusive lock on mapfile\n"); | |
1751 | do { | |
1752 | failures = 0; | |
1753 | successes = 0; | |
1754 | rv = 0; | |
1755 | for (a = array_list; a; a = a->next) { | |
1756 | int r; | |
1757 | if (a->assembled) | |
1758 | continue; | |
1759 | if (a->devname && is_devname_ignore(a->devname) == true) | |
1760 | continue; | |
1761 | ||
1762 | r = Assemble(ss, a->devname, | |
1763 | a, NULL, c); | |
1764 | if (r == 0) { | |
1765 | a->assembled = 1; | |
1766 | successes++; | |
1767 | } else | |
1768 | failures++; | |
1769 | rv |= r; | |
1770 | cnt++; | |
1771 | } | |
1772 | } while (failures && successes); | |
1773 | if (c->homehost && cnt == 0) { | |
1774 | /* Maybe we can auto-assemble something. | |
1775 | * Repeatedly call Assemble in auto-assemble mode | |
1776 | * until it fails | |
1777 | */ | |
1778 | int rv2; | |
1779 | int acnt; | |
1780 | ident->autof = c->autof; | |
1781 | do { | |
1782 | struct mddev_dev *devlist = conf_get_devs(); | |
1783 | acnt = 0; | |
1784 | do { | |
1785 | rv2 = Assemble(ss, NULL, | |
1786 | ident, | |
1787 | devlist, c); | |
1788 | if (rv2 == 0) { | |
1789 | cnt++; | |
1790 | acnt++; | |
1791 | } | |
1792 | } while (rv2 != 2); | |
1793 | /* Incase there are stacked devices, we need to go around again */ | |
1794 | } while (acnt); | |
1795 | if (cnt == 0 && rv == 0) { | |
1796 | pr_err("No arrays found in config file or automatically\n"); | |
1797 | rv = 1; | |
1798 | } else if (cnt) | |
1799 | rv = 0; | |
1800 | } else if (cnt == 0 && rv == 0) { | |
1801 | pr_err("No arrays found in config file\n"); | |
1802 | rv = 1; | |
1803 | } | |
1804 | map_unlock(&map); | |
1805 | return rv; | |
1806 | } | |
1807 | ||
1808 | static int misc_scan(char devmode, struct context *c) | |
1809 | { | |
1810 | /* apply --detail or --wait-clean to | |
1811 | * all devices in /proc/mdstat | |
1812 | */ | |
1813 | struct mdstat_ent *ms = mdstat_read(0, 1); | |
1814 | struct mdstat_ent *e; | |
1815 | struct map_ent *map = NULL; | |
1816 | int members; | |
1817 | int rv = 0; | |
1818 | ||
1819 | for (members = 0; members <= 1; members++) { | |
1820 | for (e = ms; e; e = e->next) { | |
1821 | char *name = NULL; | |
1822 | struct map_ent *me; | |
1823 | struct stat stb; | |
1824 | int member = e->metadata_version && | |
1825 | strncmp(e->metadata_version, | |
1826 | "external:/", 10) == 0; | |
1827 | if (members != member) | |
1828 | continue; | |
1829 | me = map_by_devnm(&map, e->devnm); | |
1830 | if (me && me->path && strcmp(me->path, "/unknown") != 0) | |
1831 | name = me->path; | |
1832 | if (name == NULL || stat(name, &stb) != 0) | |
1833 | name = get_md_name(e->devnm); | |
1834 | ||
1835 | if (!name) { | |
1836 | pr_err("cannot find device file for %s\n", | |
1837 | e->devnm); | |
1838 | continue; | |
1839 | } | |
1840 | if (devmode == 'D') | |
1841 | rv |= Detail(name, c); | |
1842 | else | |
1843 | rv |= WaitClean(name, c->verbose); | |
1844 | put_md_name(name); | |
1845 | map_free(map); | |
1846 | map = NULL; | |
1847 | } | |
1848 | } | |
1849 | free_mdstat(ms); | |
1850 | return rv; | |
1851 | } | |
1852 | ||
1853 | static int stop_scan(int verbose) | |
1854 | { | |
1855 | /* apply --stop to all devices in /proc/mdstat */ | |
1856 | /* Due to possible stacking of devices, repeat until | |
1857 | * nothing more can be stopped | |
1858 | */ | |
1859 | int progress = 1, err; | |
1860 | int last = 0; | |
1861 | int rv = 0; | |
1862 | do { | |
1863 | struct mdstat_ent *ms = mdstat_read(0, 0); | |
1864 | struct mdstat_ent *e; | |
1865 | ||
1866 | if (!progress) last = 1; | |
1867 | progress = 0; err = 0; | |
1868 | for (e = ms; e; e = e->next) { | |
1869 | char *name = get_md_name(e->devnm); | |
1870 | int mdfd; | |
1871 | ||
1872 | if (!name) { | |
1873 | pr_err("cannot find device file for %s\n", | |
1874 | e->devnm); | |
1875 | continue; | |
1876 | } | |
1877 | mdfd = open_mddev(name, 1); | |
1878 | if (mdfd >= 0) { | |
1879 | if (Manage_stop(name, mdfd, verbose, !last)) | |
1880 | err = 1; | |
1881 | else | |
1882 | progress = 1; | |
1883 | close(mdfd); | |
1884 | } | |
1885 | ||
1886 | put_md_name(name); | |
1887 | } | |
1888 | free_mdstat(ms); | |
1889 | } while (!last && err); | |
1890 | if (err) | |
1891 | rv |= 1; | |
1892 | return rv; | |
1893 | } | |
1894 | ||
1895 | static int misc_list(struct mddev_dev *devlist, | |
1896 | struct mddev_ident *ident, | |
1897 | char *dump_directory, | |
1898 | struct supertype *ss, struct context *c) | |
1899 | { | |
1900 | struct mddev_dev *dv; | |
1901 | int rv = 0; | |
1902 | ||
1903 | for (dv = devlist; dv; dv = (rv & 16) ? NULL : dv->next) { | |
1904 | int mdfd = -1; | |
1905 | ||
1906 | switch(dv->disposition) { | |
1907 | case 'D': | |
1908 | rv |= Detail(dv->devname, c); | |
1909 | continue; | |
1910 | case KillOpt: /* Zero superblock */ | |
1911 | if (ss) | |
1912 | rv |= Kill(dv->devname, ss, c->force, c->verbose,0); | |
1913 | else { | |
1914 | int v = c->verbose; | |
1915 | do { | |
1916 | rv |= Kill(dv->devname, NULL, c->force, v, 0); | |
1917 | v = -1; | |
1918 | } while (rv == 0); | |
1919 | rv &= ~4; | |
1920 | } | |
1921 | continue; | |
1922 | case 'Q': | |
1923 | rv |= Query(dv->devname); | |
1924 | continue; | |
1925 | case 'X': | |
1926 | rv |= ExamineBitmap(dv->devname, c->brief, ss); | |
1927 | continue; | |
1928 | case ExamineBB: | |
1929 | rv |= ExamineBadblocks(dv->devname, c->brief, ss); | |
1930 | continue; | |
1931 | case 'W': | |
1932 | case WaitOpt: | |
1933 | rv |= Wait(dv->devname); | |
1934 | continue; | |
1935 | case Waitclean: | |
1936 | rv |= WaitClean(dv->devname, c->verbose); | |
1937 | continue; | |
1938 | case KillSubarray: | |
1939 | rv |= Kill_subarray(dv->devname, c->subarray, c->verbose); | |
1940 | continue; | |
1941 | case UpdateSubarray: | |
1942 | if (!c->update) { | |
1943 | pr_err("-U/--update must be specified with --update-subarray\n"); | |
1944 | rv |= 1; | |
1945 | continue; | |
1946 | } | |
1947 | rv |= Update_subarray(dv->devname, c->subarray, | |
1948 | c->update, ident, c->verbose); | |
1949 | continue; | |
1950 | case Dump: | |
1951 | rv |= Dump_metadata(dv->devname, dump_directory, c, ss); | |
1952 | continue; | |
1953 | case Restore: | |
1954 | rv |= Restore_metadata(dv->devname, dump_directory, c, ss, | |
1955 | (dv == devlist && dv->next == NULL)); | |
1956 | continue; | |
1957 | case Action: | |
1958 | rv |= SetAction(dv->devname, c->action); | |
1959 | continue; | |
1960 | } | |
1961 | ||
1962 | if (dv->devname[0] != '/') | |
1963 | mdfd = open_dev(dv->devname); | |
1964 | if (dv->devname[0] == '/' || mdfd < 0) | |
1965 | mdfd = open_mddev(dv->devname, 1); | |
1966 | ||
1967 | if (mdfd >= 0) { | |
1968 | switch(dv->disposition) { | |
1969 | case 'R': | |
1970 | c->runstop = 1; | |
1971 | rv |= Manage_run(dv->devname, mdfd, c); | |
1972 | break; | |
1973 | case 'S': | |
1974 | if (c->scan) { | |
1975 | pr_err("--stop not meaningful with both a --scan assembly and a device name.\n"); | |
1976 | rv |= 1; | |
1977 | break; | |
1978 | } | |
1979 | rv |= Manage_stop(dv->devname, mdfd, c->verbose, 0); | |
1980 | break; | |
1981 | case 'o': | |
1982 | rv |= Manage_ro(dv->devname, mdfd, 1); | |
1983 | break; | |
1984 | case 'w': | |
1985 | rv |= Manage_ro(dv->devname, mdfd, -1); | |
1986 | break; | |
1987 | } | |
1988 | close(mdfd); | |
1989 | } else | |
1990 | rv |= 1; | |
1991 | } | |
1992 | return rv; | |
1993 | } | |
1994 | ||
1995 | int SetAction(char *dev, char *action) | |
1996 | { | |
1997 | int fd = open(dev, O_RDONLY); | |
1998 | struct mdinfo mdi; | |
1999 | int retval; | |
2000 | ||
2001 | if (fd < 0) { | |
2002 | pr_err("Couldn't open %s: %s\n", dev, strerror(errno)); | |
2003 | return 1; | |
2004 | } | |
2005 | retval = sysfs_init(&mdi, fd, NULL); | |
2006 | close(fd); | |
2007 | if (retval) { | |
2008 | pr_err("%s is no an md array\n", dev); | |
2009 | return 1; | |
2010 | } | |
2011 | ||
2012 | if (sysfs_set_str(&mdi, NULL, "sync_action", action) < 0) { | |
2013 | pr_err("Count not set action for %s to %s: %s\n", | |
2014 | dev, action, strerror(errno)); | |
2015 | return 1; | |
2016 | } | |
2017 | return 0; | |
2018 | } |