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