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1 | /* | |
2 | * mdadm - manage Linux "md" devices aka RAID arrays. | |
3 | * | |
4 | * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au> | |
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@cse.unsw.edu.au> | |
23 | * Paper: Neil Brown | |
24 | * School of Computer Science and Engineering | |
25 | * The University of New South Wales | |
26 | * Sydney, 2052 | |
27 | * Australia | |
28 | * | |
29 | * Additions for bitmap and write-behind RAID options, Copyright (C) 2003-2004, | |
30 | * Paul Clements, SteelEye Technology, Inc. | |
31 | */ | |
32 | ||
33 | #include "mdadm.h" | |
34 | #include "md_p.h" | |
35 | #include <ctype.h> | |
36 | ||
37 | ||
38 | int main(int argc, char *argv[]) | |
39 | { | |
40 | int mode = 0; | |
41 | int opt; | |
42 | int option_index; | |
43 | char *c; | |
44 | int rv; | |
45 | int i; | |
46 | ||
47 | int chunk = 0; | |
48 | long long size = -1; | |
49 | int level = UnSet; | |
50 | int layout = UnSet; | |
51 | int raiddisks = 0; | |
52 | int max_disks = MD_SB_DISKS; /* just a default */ | |
53 | int sparedisks = 0; | |
54 | struct mddev_ident_s ident; | |
55 | char *configfile = NULL; | |
56 | char *cp; | |
57 | char *update = NULL; | |
58 | int scan = 0; | |
59 | char devmode = 0; | |
60 | int runstop = 0; | |
61 | int readonly = 0; | |
62 | int write_behind = 0; | |
63 | int bitmap_fd = -1; | |
64 | char *bitmap_file = NULL; | |
65 | char *backup_file = NULL; | |
66 | int bitmap_chunk = UnSet; | |
67 | int SparcAdjust = 0; | |
68 | mddev_dev_t devlist = NULL; | |
69 | mddev_dev_t *devlistend = & devlist; | |
70 | mddev_dev_t dv; | |
71 | int devs_found = 0; | |
72 | int verbose = 0; | |
73 | int quiet = 0; | |
74 | int brief = 0; | |
75 | int force = 0; | |
76 | int test = 0; | |
77 | int assume_clean = 0; | |
78 | int autof = 0; /* -3 means don't create anything, | |
79 | * -2 means create device based on name: | |
80 | * if it ends mdN, then non-partitioned array N | |
81 | * if it ends dN, then partitions array N | |
82 | * -1 means create non-partitioned, choose N | |
83 | * 1 or more to create partitioned | |
84 | * If -1 or 1 and name is a 'standard' name, then | |
85 | * insist on a match of type and number. | |
86 | */ | |
87 | ||
88 | char *mailaddr = NULL; | |
89 | char *program = NULL; | |
90 | int delay = 0; | |
91 | int daemonise = 0; | |
92 | char *pidfile = NULL; | |
93 | int oneshot = 0; | |
94 | struct supertype *ss = NULL; | |
95 | int writemostly = 0; | |
96 | int re_add = 0; | |
97 | char *shortopt = short_options; | |
98 | int dosyslog = 0; | |
99 | ||
100 | int copies; | |
101 | int print_help = 0; | |
102 | ||
103 | int mdfd = -1; | |
104 | ||
105 | srandom(time(0) ^ getpid()); | |
106 | ||
107 | ident.uuid_set=0; | |
108 | ident.level = UnSet; | |
109 | ident.raid_disks = UnSet; | |
110 | ident.super_minor= UnSet; | |
111 | ident.devices=0; | |
112 | ident.spare_group = NULL; | |
113 | ident.autof = 0; | |
114 | ident.st = NULL; | |
115 | ident.bitmap_fd = -1; | |
116 | ident.bitmap_file = NULL; | |
117 | ident.name[0] = 0; | |
118 | ||
119 | while ((option_index = -1) , | |
120 | (opt=getopt_long(argc, argv, | |
121 | shortopt, long_options, | |
122 | &option_index)) != -1) { | |
123 | int newmode = mode; | |
124 | /* firstly, some mode-independant options */ | |
125 | switch(opt) { | |
126 | case 'h': | |
127 | if (option_index > 0 && | |
128 | strcmp(long_options[option_index].name, "help-options")==0) | |
129 | print_help = 2; | |
130 | else | |
131 | print_help = 1; | |
132 | continue; | |
133 | ||
134 | case 'V': | |
135 | fputs(Version, stderr); | |
136 | exit(0); | |
137 | ||
138 | case 'v': verbose++; | |
139 | continue; | |
140 | ||
141 | case 'q': quiet++; | |
142 | continue; | |
143 | ||
144 | case 'b': | |
145 | if (mode == ASSEMBLE || mode == BUILD || mode == CREATE || mode == GROW) | |
146 | break; /* b means bitmap */ | |
147 | brief = 1; | |
148 | if (optarg) { | |
149 | fprintf(stderr, Name ": -b cannot have any extra immediately after it, sorry.\n"); | |
150 | exit(2); | |
151 | } | |
152 | continue; | |
153 | ||
154 | case ':': | |
155 | case '?': | |
156 | fputs(Usage, stderr); | |
157 | exit(2); | |
158 | } | |
159 | /* second, figure out the mode. | |
160 | * Some options force the mode. Others | |
161 | * set the mode if it isn't already | |
162 | */ | |
163 | ||
164 | switch(opt) { | |
165 | case '@': /* just incase they say --manage */ | |
166 | newmode = MANAGE; | |
167 | shortopt = short_bitmap_auto_options; | |
168 | break; | |
169 | case 'a': | |
170 | case 'r': | |
171 | case 'f': | |
172 | case 6: /* re-add */ | |
173 | if (!mode) { | |
174 | newmode = MANAGE; | |
175 | shortopt = short_bitmap_auto_options; | |
176 | } | |
177 | break; | |
178 | ||
179 | case 'A': newmode = ASSEMBLE; shortopt = short_bitmap_auto_options; break; | |
180 | case 'B': newmode = BUILD; shortopt = short_bitmap_auto_options; break; | |
181 | case 'C': newmode = CREATE; shortopt = short_bitmap_auto_options; break; | |
182 | case 'F': newmode = MONITOR;break; | |
183 | case 'G': newmode = GROW; shortopt = short_bitmap_auto_options; break; | |
184 | ||
185 | case '#': | |
186 | case 'D': | |
187 | case 'E': | |
188 | case 'X': | |
189 | case 'Q': newmode = MISC; break; | |
190 | case 'R': | |
191 | case 'S': | |
192 | case 'o': | |
193 | case 'w': | |
194 | case 'K': if (!mode) newmode = MISC; break; | |
195 | } | |
196 | if (mode && newmode == mode) { | |
197 | /* everybody happy ! */ | |
198 | } else if (mode && newmode != mode) { | |
199 | /* not allowed.. */ | |
200 | fprintf(stderr, Name ": "); | |
201 | if (option_index >= 0) | |
202 | fprintf(stderr, "--%s", long_options[option_index].name); | |
203 | else | |
204 | fprintf(stderr, "-%c", opt); | |
205 | fprintf(stderr, " would set mdadm mode to \"%s\", but it is already set to \"%s\".\n", | |
206 | map_num(modes, newmode), | |
207 | map_num(modes, mode)); | |
208 | exit(2); | |
209 | } else if (!mode && newmode) { | |
210 | mode = newmode; | |
211 | } else { | |
212 | /* special case of -c --help */ | |
213 | if (opt == 'c' && | |
214 | ( strncmp(optarg, "--h", 3)==0 || | |
215 | strncmp(optarg, "-h", 2)==0)) { | |
216 | fputs(Help_config, stderr); | |
217 | exit(0); | |
218 | } | |
219 | ||
220 | /* If first option is a device, don't force the mode yet */ | |
221 | if (opt == 1) { | |
222 | if (devs_found == 0) { | |
223 | dv = malloc(sizeof(*dv)); | |
224 | if (dv == NULL) { | |
225 | fprintf(stderr, Name ": malloc failed\n"); | |
226 | exit(3); | |
227 | } | |
228 | dv->devname = optarg; | |
229 | dv->disposition = devmode; | |
230 | dv->writemostly = writemostly; | |
231 | dv->re_add = re_add; | |
232 | dv->next = NULL; | |
233 | *devlistend = dv; | |
234 | devlistend = &dv->next; | |
235 | ||
236 | devs_found++; | |
237 | continue; | |
238 | } | |
239 | /* No mode yet, and this is the second device ... */ | |
240 | fprintf(stderr, Name ": An option must be given to set the mode before a second device is listed\n"); | |
241 | exit(2); | |
242 | } | |
243 | if (option_index >= 0) | |
244 | fprintf(stderr, Name ": --%s", long_options[option_index].name); | |
245 | else | |
246 | fprintf(stderr, Name ": -%c", opt); | |
247 | fprintf(stderr, " does not set the mode, and so cannot be the first option.\n"); | |
248 | exit(2); | |
249 | } | |
250 | ||
251 | /* if we just set the mode, then done */ | |
252 | switch(opt) { | |
253 | case '@': | |
254 | case '#': | |
255 | case 'A': | |
256 | case 'B': | |
257 | case 'C': | |
258 | case 'F': | |
259 | case 'G': | |
260 | continue; | |
261 | } | |
262 | if (opt == 1) { | |
263 | /* an undecorated option - must be a device name. | |
264 | */ | |
265 | if (devs_found > 0 && mode == '@' && !devmode) { | |
266 | fprintf(stderr, Name ": Must give one of -a/-r/-f for subsequent devices at %s\n", optarg); | |
267 | exit(2); | |
268 | } | |
269 | if (devs_found > 0 && mode == 'G' && !devmode) { | |
270 | fprintf(stderr, Name ": Must give one of -a for devices do add: %s\n", optarg); | |
271 | exit(2); | |
272 | } | |
273 | dv = malloc(sizeof(*dv)); | |
274 | if (dv == NULL) { | |
275 | fprintf(stderr, Name ": malloc failed\n"); | |
276 | exit(3); | |
277 | } | |
278 | dv->devname = optarg; | |
279 | dv->disposition = devmode; | |
280 | dv->writemostly = writemostly; | |
281 | dv->re_add = re_add; | |
282 | dv->next = NULL; | |
283 | *devlistend = dv; | |
284 | devlistend = &dv->next; | |
285 | ||
286 | devs_found++; | |
287 | continue; | |
288 | } | |
289 | ||
290 | /* We've got a mode, and opt is now something else which | |
291 | * could depend on the mode */ | |
292 | #define O(a,b) ((a<<8)|b) | |
293 | switch (O(mode,opt)) { | |
294 | case O(CREATE,'c'): | |
295 | case O(BUILD,'c'): /* chunk or rounding */ | |
296 | if (chunk) { | |
297 | fprintf(stderr, Name ": chunk/rounding may only be specified once. " | |
298 | "Second value is %s.\n", optarg); | |
299 | exit(2); | |
300 | } | |
301 | chunk = strtol(optarg, &c, 10); | |
302 | if (!optarg[0] || *c || chunk<4 || ((chunk-1)&chunk)) { | |
303 | fprintf(stderr, Name ": invalid chunk/rounding value: %s\n", | |
304 | optarg); | |
305 | exit(2); | |
306 | } | |
307 | continue; | |
308 | ||
309 | case O(CREATE,'e'): | |
310 | case O(ASSEMBLE,'e'): | |
311 | case O(MISC,'e'): /* set metadata (superblock) information */ | |
312 | if (ss) { | |
313 | fprintf(stderr, Name ": metadata information already given\n"); | |
314 | exit(2); | |
315 | } | |
316 | for(i=0; !ss && superlist[i]; i++) | |
317 | ss = superlist[i]->match_metadata_desc(optarg); | |
318 | ||
319 | if (!ss) { | |
320 | fprintf(stderr, Name ": unrecognised metadata identifier: %s\n", optarg); | |
321 | exit(2); | |
322 | } | |
323 | max_disks = ss->max_devs; | |
324 | continue; | |
325 | ||
326 | case O(MANAGE,'W'): | |
327 | case O(BUILD,'W'): | |
328 | case O(CREATE,'W'): | |
329 | /* set write-mostly for following devices */ | |
330 | writemostly = 1; | |
331 | continue; | |
332 | ||
333 | case O(GROW,'z'): | |
334 | case O(CREATE,'z'): /* size */ | |
335 | if (size >= 0) { | |
336 | fprintf(stderr, Name ": size may only be specified once. " | |
337 | "Second value is %s.\n", optarg); | |
338 | exit(2); | |
339 | } | |
340 | if (strcmp(optarg, "max")==0) | |
341 | size = 0; | |
342 | else { | |
343 | size = strtoll(optarg, &c, 10); | |
344 | if (!optarg[0] || *c || size < 4) { | |
345 | fprintf(stderr, Name ": invalid size: %s\n", | |
346 | optarg); | |
347 | exit(2); | |
348 | } | |
349 | } | |
350 | continue; | |
351 | ||
352 | case O(GROW,'l'): /* hack - needed to understand layout */ | |
353 | case O(CREATE,'l'): | |
354 | case O(BUILD,'l'): /* set raid level*/ | |
355 | if (level != UnSet) { | |
356 | fprintf(stderr, Name ": raid level may only be set once. " | |
357 | "Second value is %s.\n", optarg); | |
358 | exit(2); | |
359 | } | |
360 | level = map_name(pers, optarg); | |
361 | if (level == UnSet) { | |
362 | fprintf(stderr, Name ": invalid raid level: %s\n", | |
363 | optarg); | |
364 | exit(2); | |
365 | } | |
366 | if (level != 0 && level != -1 && level != 1 && level != -4 && level != -5 && mode == BUILD) { | |
367 | fprintf(stderr, Name ": Raid level %s not permitted with --build.\n", | |
368 | optarg); | |
369 | exit(2); | |
370 | } | |
371 | if (sparedisks > 0 && level < 1 && level >= -1) { | |
372 | fprintf(stderr, Name ": raid level %s is incompatible with spare-devices setting.\n", | |
373 | optarg); | |
374 | exit(2); | |
375 | } | |
376 | ident.level = level; | |
377 | continue; | |
378 | ||
379 | case O(CREATE,'p'): /* raid5 layout */ | |
380 | case O(BUILD,'p'): /* faulty layout */ | |
381 | case O(GROW, 'p'): /* faulty reconfig */ | |
382 | if (layout != UnSet) { | |
383 | fprintf(stderr,Name ": layout may only be sent once. " | |
384 | "Second value was %s\n", optarg); | |
385 | exit(2); | |
386 | } | |
387 | switch(level) { | |
388 | default: | |
389 | fprintf(stderr, Name ": layout not meaningful for %s arrays.\n", | |
390 | map_num(pers, level)); | |
391 | exit(2); | |
392 | case UnSet: | |
393 | fprintf(stderr, Name ": raid level must be given before layout.\n"); | |
394 | exit(2); | |
395 | ||
396 | case 5: | |
397 | case 6: | |
398 | layout = map_name(r5layout, optarg); | |
399 | if (layout==UnSet) { | |
400 | fprintf(stderr, Name ": layout %s not understood for raid5.\n", | |
401 | optarg); | |
402 | exit(2); | |
403 | } | |
404 | break; | |
405 | ||
406 | case 10: | |
407 | /* 'f', 'o' or 'n' followed by a number <= raid_disks */ | |
408 | if ((optarg[0] != 'n' && optarg[0] != 'f' && optarg[0] != 'o') || | |
409 | (copies = strtoul(optarg+1, &cp, 10)) < 1 || | |
410 | copies > 200 || | |
411 | *cp) { | |
412 | fprintf(stderr, Name ": layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg); | |
413 | exit(2); | |
414 | } | |
415 | if (optarg[0] == 'n') | |
416 | layout = 256 + copies; | |
417 | else if (optarg[0] == 'o') | |
418 | layout = 0x10000 + (copies<<8) + 1; | |
419 | else | |
420 | layout = 1 + (copies<<8); | |
421 | break; | |
422 | case -5: /* Faulty | |
423 | * modeNNN | |
424 | */ | |
425 | ||
426 | { | |
427 | int ln = strcspn(optarg, "0123456789"); | |
428 | char *m = strdup(optarg); | |
429 | int mode; | |
430 | m[ln] = 0; | |
431 | mode = map_name(faultylayout, m); | |
432 | if (mode == UnSet) { | |
433 | fprintf(stderr, Name ": layout %s not understood for faulty.\n", | |
434 | optarg); | |
435 | exit(2); | |
436 | } | |
437 | layout = mode | (atoi(optarg+ln)<< ModeShift); | |
438 | } | |
439 | } | |
440 | continue; | |
441 | ||
442 | case O(CREATE,3): | |
443 | case O(BUILD,3): /* assume clean */ | |
444 | assume_clean = 1; | |
445 | continue; | |
446 | ||
447 | case O(GROW,'n'): | |
448 | case O(CREATE,'n'): | |
449 | case O(BUILD,'n'): /* number of raid disks */ | |
450 | if (raiddisks) { | |
451 | fprintf(stderr, Name ": raid-devices set twice: %d and %s\n", | |
452 | raiddisks, optarg); | |
453 | exit(2); | |
454 | } | |
455 | raiddisks = strtol(optarg, &c, 10); | |
456 | if (!optarg[0] || *c || raiddisks<=0) { | |
457 | fprintf(stderr, Name ": invalid number of raid devices: %s\n", | |
458 | optarg); | |
459 | exit(2); | |
460 | } | |
461 | ident.raid_disks = raiddisks; | |
462 | continue; | |
463 | ||
464 | case O(CREATE,'x'): /* number of spare (eXtra) discs */ | |
465 | if (sparedisks) { | |
466 | fprintf(stderr,Name ": spare-devices set twice: %d and %s\n", | |
467 | sparedisks, optarg); | |
468 | exit(2); | |
469 | } | |
470 | if (level != UnSet && level <= 0 && level >= -1) { | |
471 | fprintf(stderr, Name ": spare-devices setting is incompatible with raid level %d\n", | |
472 | level); | |
473 | exit(2); | |
474 | } | |
475 | sparedisks = strtol(optarg, &c, 10); | |
476 | if (!optarg[0] || *c || sparedisks < 0) { | |
477 | fprintf(stderr, Name ": invalid number of spare-devices: %s\n", | |
478 | optarg); | |
479 | exit(2); | |
480 | } | |
481 | continue; | |
482 | ||
483 | case O(CREATE,'a'): | |
484 | case O(BUILD,'a'): | |
485 | case O(ASSEMBLE,'a'): /* auto-creation of device node */ | |
486 | autof = parse_auto(optarg, "--auto flag"); | |
487 | continue; | |
488 | ||
489 | case O(BUILD,'f'): /* force honouring '-n 1' */ | |
490 | case O(GROW,'f'): /* ditto */ | |
491 | case O(CREATE,'f'): /* force honouring of device list */ | |
492 | case O(ASSEMBLE,'f'): /* force assembly */ | |
493 | case O(MISC,'f'): /* force zero */ | |
494 | force=1; | |
495 | continue; | |
496 | ||
497 | /* now for the Assemble options */ | |
498 | case O(ASSEMBLE,'u'): /* uuid of array */ | |
499 | if (ident.uuid_set) { | |
500 | fprintf(stderr, Name ": uuid cannot be set twice. " | |
501 | "Second value %s.\n", optarg); | |
502 | exit(2); | |
503 | } | |
504 | if (parse_uuid(optarg, ident.uuid)) | |
505 | ident.uuid_set = 1; | |
506 | else { | |
507 | fprintf(stderr,Name ": Bad uuid: %s\n", optarg); | |
508 | exit(2); | |
509 | } | |
510 | continue; | |
511 | ||
512 | case O(CREATE,'N'): | |
513 | case O(ASSEMBLE,'N'): | |
514 | if (ident.name[0]) { | |
515 | fprintf(stderr, Name ": name cannot be set twice. " | |
516 | "Second value %s.\n", optarg); | |
517 | exit(2); | |
518 | } | |
519 | if (strlen(optarg) > 32) { | |
520 | fprintf(stderr, Name ": name '%s' is too long, 32 chars max.\n", | |
521 | optarg); | |
522 | exit(2); | |
523 | } | |
524 | strcpy(ident.name, optarg); | |
525 | continue; | |
526 | ||
527 | case O(ASSEMBLE,'m'): /* super-minor for array */ | |
528 | if (ident.super_minor != UnSet) { | |
529 | fprintf(stderr, Name ": super-minor cannot be set twice. " | |
530 | "Second value: %s.\n", optarg); | |
531 | exit(2); | |
532 | } | |
533 | if (strcmp(optarg, "dev")==0) | |
534 | ident.super_minor = -2; | |
535 | else { | |
536 | ident.super_minor = strtoul(optarg, &cp, 10); | |
537 | if (!optarg[0] || *cp) { | |
538 | fprintf(stderr, Name ": Bad super-minor number: %s.\n", optarg); | |
539 | exit(2); | |
540 | } | |
541 | } | |
542 | continue; | |
543 | ||
544 | case O(ASSEMBLE,'U'): /* update the superblock */ | |
545 | if (update) { | |
546 | fprintf(stderr, Name ": Can only update one aspect of superblock, both %s and %s given.\n", | |
547 | update, optarg); | |
548 | exit(2); | |
549 | } | |
550 | update = optarg; | |
551 | if (strcmp(update, "sparc2.2")==0) | |
552 | continue; | |
553 | if (strcmp(update, "super-minor") == 0) | |
554 | continue; | |
555 | if (strcmp(update, "summaries")==0) | |
556 | continue; | |
557 | if (strcmp(update, "resync")==0) | |
558 | continue; | |
559 | if (strcmp(update, "uuid")==0) | |
560 | continue; | |
561 | if (strcmp(update, "byteorder")==0) { | |
562 | if (ss) { | |
563 | fprintf(stderr, Name ": must not set metadata type with --update=byteorder.\n"); | |
564 | exit(2); | |
565 | } | |
566 | for(i=0; !ss && superlist[i]; i++) | |
567 | ss = superlist[i]->match_metadata_desc("0.swap"); | |
568 | if (!ss) { | |
569 | fprintf(stderr, Name ": INTERNAL ERROR cannot find 0.swap\n"); | |
570 | exit(2); | |
571 | } | |
572 | ||
573 | continue; | |
574 | } | |
575 | fprintf(stderr, Name ": '--update %s' invalid. Only 'sparc2.2', 'super-minor', 'uuid', 'resync' or 'summaries' supported\n",update); | |
576 | exit(2); | |
577 | ||
578 | case O(ASSEMBLE,'c'): /* config file */ | |
579 | case O(MISC, 'c'): | |
580 | case O(MONITOR,'c'): | |
581 | if (configfile) { | |
582 | fprintf(stderr, Name ": configfile cannot be set twice. " | |
583 | "Second value is %s.\n", optarg); | |
584 | exit(2); | |
585 | } | |
586 | configfile = optarg; | |
587 | /* FIXME possibly check that config file exists. Even parse it */ | |
588 | continue; | |
589 | case O(ASSEMBLE,'s'): /* scan */ | |
590 | case O(MISC,'s'): | |
591 | case O(MONITOR,'s'): | |
592 | scan = 1; | |
593 | continue; | |
594 | ||
595 | case O(MONITOR,'m'): /* mail address */ | |
596 | if (mailaddr) | |
597 | fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n", | |
598 | optarg); | |
599 | else | |
600 | mailaddr = optarg; | |
601 | continue; | |
602 | ||
603 | case O(MONITOR,'p'): /* alert program */ | |
604 | if (program) | |
605 | fprintf(stderr, Name ": only specify one alter program. %s ignored.\n", | |
606 | optarg); | |
607 | else | |
608 | program = optarg; | |
609 | continue; | |
610 | ||
611 | case O(MONITOR,'d'): /* delay in seconds */ | |
612 | case O(GROW, 'd'): | |
613 | case O(BUILD,'d'): /* delay for bitmap updates */ | |
614 | case O(CREATE,'d'): | |
615 | if (delay) | |
616 | fprintf(stderr, Name ": only specify delay once. %s ignored.\n", | |
617 | optarg); | |
618 | else { | |
619 | delay = strtol(optarg, &c, 10); | |
620 | if (!optarg[0] || *c || delay<1) { | |
621 | fprintf(stderr, Name ": invalid delay: %s\n", | |
622 | optarg); | |
623 | exit(2); | |
624 | } | |
625 | } | |
626 | continue; | |
627 | case O(MONITOR,'f'): /* daemonise */ | |
628 | daemonise = 1; | |
629 | continue; | |
630 | case O(MONITOR,'i'): /* pid */ | |
631 | if (pidfile) | |
632 | fprintf(stderr, Name ": only specify one pid file. %s ignored.\n", | |
633 | optarg); | |
634 | else | |
635 | pidfile = optarg; | |
636 | continue; | |
637 | case O(MONITOR,'1'): /* oneshot */ | |
638 | oneshot = 1; | |
639 | continue; | |
640 | case O(MONITOR,'t'): /* test */ | |
641 | test = 1; | |
642 | continue; | |
643 | case O(MONITOR,'y'): /* log messages to syslog */ | |
644 | openlog("mdadm", 0, SYSLOG_FACILITY); | |
645 | dosyslog = 1; | |
646 | continue; | |
647 | ||
648 | /* now the general management options. Some are applicable | |
649 | * to other modes. None have arguments. | |
650 | */ | |
651 | case O(GROW,'a'): | |
652 | case O(MANAGE,'a'): /* add a drive */ | |
653 | devmode = 'a'; | |
654 | re_add = 0; | |
655 | continue; | |
656 | case O(MANAGE,6): | |
657 | devmode = 'a'; | |
658 | re_add = 1; | |
659 | continue; | |
660 | case O(MANAGE,'r'): /* remove a drive */ | |
661 | devmode = 'r'; | |
662 | continue; | |
663 | case O(MANAGE,'f'): /* set faulty */ | |
664 | devmode = 'f'; | |
665 | continue; | |
666 | case O(MANAGE,'R'): | |
667 | case O(ASSEMBLE,'R'): | |
668 | case O(BUILD,'R'): | |
669 | case O(CREATE,'R'): /* Run the array */ | |
670 | if (runstop < 0) { | |
671 | fprintf(stderr, Name ": Cannot both Stop and Run an array\n"); | |
672 | exit(2); | |
673 | } | |
674 | runstop = 1; | |
675 | continue; | |
676 | case O(MANAGE,'S'): | |
677 | if (runstop > 0) { | |
678 | fprintf(stderr, Name ": Cannot both Run and Stop an array\n"); | |
679 | exit(2); | |
680 | } | |
681 | runstop = -1; | |
682 | continue; | |
683 | ||
684 | case O(MANAGE,'o'): | |
685 | if (readonly < 0) { | |
686 | fprintf(stderr, Name ": Cannot have both readonly and readwrite\n"); | |
687 | exit(2); | |
688 | } | |
689 | readonly = 1; | |
690 | continue; | |
691 | case O(MANAGE,'w'): | |
692 | if (readonly > 0) { | |
693 | fprintf(stderr, Name ": Cannot have both readwrite and readonly.\n"); | |
694 | exit(2); | |
695 | } | |
696 | readonly = -1; | |
697 | continue; | |
698 | ||
699 | case O(MISC,'Q'): | |
700 | case O(MISC,'D'): | |
701 | case O(MISC,'E'): | |
702 | case O(MISC,'K'): | |
703 | case O(MISC,'R'): | |
704 | case O(MISC,'S'): | |
705 | case O(MISC,'X'): | |
706 | case O(MISC,'o'): | |
707 | case O(MISC,'w'): | |
708 | if (devmode && devmode != opt && | |
709 | (devmode == 'E' || (opt == 'E' && devmode != 'Q'))) { | |
710 | fprintf(stderr, Name ": --examine/-E cannot be given with -%c\n", | |
711 | devmode =='E'?opt:devmode); | |
712 | exit(2); | |
713 | } | |
714 | devmode = opt; | |
715 | continue; | |
716 | case O(MISC,'t'): | |
717 | test = 1; | |
718 | continue; | |
719 | ||
720 | case O(MISC, 22): | |
721 | if (devmode != 'E') { | |
722 | fprintf(stderr, Name ": --sparc2.2 only allowed with --examine\n"); | |
723 | exit(2); | |
724 | } | |
725 | SparcAdjust = 1; | |
726 | continue; | |
727 | ||
728 | case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */ | |
729 | if (!optarg) { | |
730 | fprintf(stderr, Name ": bitmap file needed with -b in --assemble mode\n"); | |
731 | exit(2); | |
732 | } | |
733 | if (strcmp(optarg, "internal")==0) { | |
734 | fprintf(stderr, Name ": there is no need to specify --bitmap when assembling arrays with internal bitmaps\n"); | |
735 | continue; | |
736 | } | |
737 | bitmap_fd = open(optarg, O_RDWR); | |
738 | if (!*optarg || bitmap_fd < 0) { | |
739 | fprintf(stderr, Name ": cannot open bitmap file %s: %s\n", optarg, strerror(errno)); | |
740 | exit(2); | |
741 | } | |
742 | ident.bitmap_fd = bitmap_fd; /* for Assemble */ | |
743 | continue; | |
744 | ||
745 | case O(ASSEMBLE, 7): | |
746 | case O(GROW, 7): | |
747 | /* Specify a file into which grow might place a backup, | |
748 | * or from which assemble might recover a backup | |
749 | */ | |
750 | if (backup_file) { | |
751 | fprintf(stderr, Name ": backup file already specified, rejecting %s\n", optarg); | |
752 | exit(2); | |
753 | } | |
754 | backup_file = optarg; | |
755 | continue; | |
756 | ||
757 | case O(GROW,'b'): | |
758 | case O(BUILD,'b'): | |
759 | case O(CREATE,'b'): /* here we create the bitmap */ | |
760 | if (strcmp(optarg, "internal")== 0 || | |
761 | strcmp(optarg, "none")== 0 || | |
762 | strchr(optarg, '/') != NULL) { | |
763 | bitmap_file = optarg; | |
764 | continue; | |
765 | } | |
766 | /* probable typo */ | |
767 | fprintf(stderr, Name ": bitmap file must contain a '/', or be 'internal', or 'none'\n"); | |
768 | exit(2); | |
769 | ||
770 | case O(GROW,4): | |
771 | case O(BUILD,4): | |
772 | case O(CREATE,4): /* bitmap chunksize */ | |
773 | bitmap_chunk = strtol(optarg, &c, 10); | |
774 | if (!optarg[0] || *c || bitmap_chunk < 0 || | |
775 | bitmap_chunk & (bitmap_chunk - 1)) { | |
776 | fprintf(stderr, Name ": invalid bitmap chunksize: %s\n", | |
777 | optarg); | |
778 | exit(2); | |
779 | } | |
780 | /* convert K to B, chunk of 0K means 512B */ | |
781 | bitmap_chunk = bitmap_chunk ? bitmap_chunk * 1024 : 512; | |
782 | continue; | |
783 | ||
784 | case O(BUILD, 5): | |
785 | case O(CREATE, 5): /* write-behind mode */ | |
786 | write_behind = DEFAULT_MAX_WRITE_BEHIND; | |
787 | if (optarg) { | |
788 | write_behind = strtol(optarg, &c, 10); | |
789 | if (write_behind < 0 || *c || | |
790 | write_behind > 16383) { | |
791 | fprintf(stderr, Name ": Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", optarg); | |
792 | exit(2); | |
793 | } | |
794 | } | |
795 | continue; | |
796 | } | |
797 | /* We have now processed all the valid options. Anything else is | |
798 | * an error | |
799 | */ | |
800 | if (option_index > 0) | |
801 | fprintf(stderr, Name ":option --%s not valid in %s mode\n", | |
802 | long_options[option_index].name, | |
803 | map_num(modes, mode)); | |
804 | else | |
805 | fprintf(stderr, Name ": option -%c not valid in %s mode\n", | |
806 | opt, map_num(modes, mode)); | |
807 | exit(2); | |
808 | ||
809 | } | |
810 | ||
811 | if (print_help) { | |
812 | char *help_text = Help; | |
813 | if (print_help == 2) | |
814 | help_text = OptionHelp; | |
815 | else | |
816 | switch (mode) { | |
817 | case ASSEMBLE : help_text = Help_assemble; break; | |
818 | case BUILD : help_text = Help_build; break; | |
819 | case CREATE : help_text = Help_create; break; | |
820 | case MANAGE : help_text = Help_manage; break; | |
821 | case MISC : help_text = Help_misc; break; | |
822 | case MONITOR : help_text = Help_monitor; break; | |
823 | case GROW : help_text = Help_grow; break; | |
824 | } | |
825 | fputs(help_text,stderr); | |
826 | exit(0); | |
827 | } | |
828 | ||
829 | if (!mode && devs_found) { | |
830 | mode = MISC; | |
831 | devmode = 'Q'; | |
832 | if (devlist->disposition == 0) | |
833 | devlist->disposition = devmode; | |
834 | } | |
835 | if (!mode) { | |
836 | fputs(Usage, stderr); | |
837 | exit(2); | |
838 | } | |
839 | /* Ok, got the option parsing out of the way | |
840 | * hopefully it's mostly right but there might be some stuff | |
841 | * missing | |
842 | * | |
843 | * That is mosty checked in the per-mode stuff but... | |
844 | * | |
845 | * For @,B,C and A without -s, the first device listed must be an md device | |
846 | * we check that here and open it. | |
847 | */ | |
848 | ||
849 | if (mode==MANAGE || mode == BUILD || mode == CREATE || mode == GROW || | |
850 | (mode == ASSEMBLE && ! scan)) { | |
851 | if (devs_found < 1) { | |
852 | fprintf(stderr, Name ": an md device must be given in this mode\n"); | |
853 | exit(2); | |
854 | } | |
855 | if ((int)ident.super_minor == -2 && autof) { | |
856 | fprintf(stderr, Name ": --super-minor=dev is incompatible with --auto\n"); | |
857 | exit(2); | |
858 | } | |
859 | mdfd = open_mddev(devlist->devname, autof); | |
860 | if (mdfd < 0) | |
861 | exit(1); | |
862 | if ((int)ident.super_minor == -2) { | |
863 | struct stat stb; | |
864 | fstat(mdfd, &stb); | |
865 | ident.super_minor = minor(stb.st_rdev); | |
866 | } | |
867 | } | |
868 | ||
869 | if (raiddisks) { | |
870 | if (raiddisks > max_disks) { | |
871 | fprintf(stderr, Name ": invalid number of raid devices: %d\n", | |
872 | raiddisks); | |
873 | exit(2); | |
874 | } | |
875 | if (raiddisks == 1 && !force && level != -5) { | |
876 | fprintf(stderr, Name ": '1' is an unusual number of drives for an array, so it is probably\n" | |
877 | " a mistake. If you really mean it you will need to specify --force before\n" | |
878 | " setting the number of drives.\n"); | |
879 | exit(2); | |
880 | } | |
881 | } | |
882 | if (sparedisks) { | |
883 | if ( sparedisks > max_disks - raiddisks) { | |
884 | fprintf(stderr, Name ": invalid number of spare-devices: %d\n", | |
885 | sparedisks); | |
886 | exit(2); | |
887 | } | |
888 | } | |
889 | ||
890 | rv = 0; | |
891 | switch(mode) { | |
892 | case MANAGE: | |
893 | /* readonly, add/remove, readwrite, runstop */ | |
894 | if (readonly>0) | |
895 | rv = Manage_ro(devlist->devname, mdfd, readonly); | |
896 | if (!rv && devs_found>1) | |
897 | rv = Manage_subdevs(devlist->devname, mdfd, | |
898 | devlist->next, verbose-quiet); | |
899 | if (!rv && readonly < 0) | |
900 | rv = Manage_ro(devlist->devname, mdfd, readonly); | |
901 | if (!rv && runstop) | |
902 | rv = Manage_runstop(devlist->devname, mdfd, runstop, 0); | |
903 | break; | |
904 | case ASSEMBLE: | |
905 | if (devs_found == 1 && ident.uuid_set == 0 && | |
906 | ident.super_minor == UnSet && ident.name[0] == 0 && !scan ) { | |
907 | /* Only a device has been given, so get details from config file */ | |
908 | mddev_ident_t array_ident = conf_get_ident(configfile, devlist->devname); | |
909 | if (array_ident == NULL) { | |
910 | fprintf(stderr, Name ": %s not identified in config file.\n", | |
911 | devlist->devname); | |
912 | rv |= 1; | |
913 | } else { | |
914 | mdfd = open_mddev(devlist->devname, | |
915 | array_ident->autof ? array_ident->autof : autof); | |
916 | if (mdfd < 0) | |
917 | rv |= 1; | |
918 | else { | |
919 | rv |= Assemble(ss, devlist->devname, mdfd, array_ident, configfile, | |
920 | NULL, backup_file, | |
921 | readonly, runstop, update, verbose-quiet, force); | |
922 | close(mdfd); | |
923 | } | |
924 | } | |
925 | } else if (!scan) | |
926 | rv = Assemble(ss, devlist->devname, mdfd, &ident, configfile, | |
927 | devlist->next, backup_file, | |
928 | readonly, runstop, update, verbose-quiet, force); | |
929 | else if (devs_found>0) { | |
930 | if (update && devs_found > 1) { | |
931 | fprintf(stderr, Name ": can only update a single array at a time\n"); | |
932 | exit(1); | |
933 | } | |
934 | if (backup_file && devs_found > 1) { | |
935 | fprintf(stderr, Name ": can only assemble a single array when providing a backup file.\n"); | |
936 | exit(1); | |
937 | } | |
938 | for (dv = devlist ; dv ; dv=dv->next) { | |
939 | mddev_ident_t array_ident = conf_get_ident(configfile, dv->devname); | |
940 | if (array_ident == NULL) { | |
941 | fprintf(stderr, Name ": %s not identified in config file.\n", | |
942 | dv->devname); | |
943 | rv |= 1; | |
944 | continue; | |
945 | } | |
946 | mdfd = open_mddev(dv->devname, | |
947 | array_ident->autof ?array_ident->autof : autof); | |
948 | if (mdfd < 0) { | |
949 | rv |= 1; | |
950 | continue; | |
951 | } | |
952 | rv |= Assemble(ss, dv->devname, mdfd, array_ident, configfile, | |
953 | NULL, backup_file, | |
954 | readonly, runstop, update, verbose-quiet, force); | |
955 | close(mdfd); | |
956 | } | |
957 | } else { | |
958 | mddev_ident_t array_list = conf_get_ident(configfile, NULL); | |
959 | if (!array_list) { | |
960 | fprintf(stderr, Name ": No arrays found in config file\n"); | |
961 | rv = 1; | |
962 | } else | |
963 | if (update) { | |
964 | fprintf(stderr, Name ": --update not meaningful with a --scan assembly.\n"); | |
965 | exit(1); | |
966 | } | |
967 | if (backup_file) { | |
968 | fprintf(stderr, Name ": --backup_file not meaningful with a --scan assembly.\n"); | |
969 | exit(1); | |
970 | } | |
971 | for (; array_list; array_list = array_list->next) { | |
972 | mdu_array_info_t array; | |
973 | mdfd = open_mddev(array_list->devname, | |
974 | array_list->autof ? array_list->autof : autof); | |
975 | if (mdfd < 0) { | |
976 | rv |= 1; | |
977 | continue; | |
978 | } | |
979 | if (ioctl(mdfd, GET_ARRAY_INFO, &array)>=0) | |
980 | /* already assembled, skip */ | |
981 | ; | |
982 | else | |
983 | rv |= Assemble(ss, array_list->devname, mdfd, | |
984 | array_list, configfile, | |
985 | NULL, NULL, | |
986 | readonly, runstop, NULL, verbose-quiet, force); | |
987 | close(mdfd); | |
988 | } | |
989 | } | |
990 | break; | |
991 | case BUILD: | |
992 | if (delay == 0) delay = DEFAULT_BITMAP_DELAY; | |
993 | if (write_behind && !bitmap_file) { | |
994 | fprintf(stderr, Name ": write-behind mode requires a bitmap.\n"); | |
995 | rv = 1; | |
996 | break; | |
997 | } | |
998 | ||
999 | if (bitmap_file) { | |
1000 | if (strcmp(bitmap_file, "internal")==0) { | |
1001 | fprintf(stderr, Name ": 'internal' bitmaps not supported with --build\n"); | |
1002 | rv |= 1; | |
1003 | break; | |
1004 | } | |
1005 | } | |
1006 | rv = Build(devlist->devname, mdfd, chunk, level, layout, | |
1007 | raiddisks, devlist->next, assume_clean, | |
1008 | bitmap_file, bitmap_chunk, write_behind, delay, verbose-quiet); | |
1009 | break; | |
1010 | case CREATE: | |
1011 | if (delay == 0) delay = DEFAULT_BITMAP_DELAY; | |
1012 | if (write_behind && !bitmap_file) { | |
1013 | fprintf(stderr, Name ": write-behind mode requires a bitmap.\n"); | |
1014 | rv = 1; | |
1015 | break; | |
1016 | } | |
1017 | ||
1018 | rv = Create(ss, devlist->devname, mdfd, chunk, level, layout, size<0 ? 0 : size, | |
1019 | raiddisks, sparedisks, ident.name, | |
1020 | devs_found-1, devlist->next, runstop, verbose-quiet, force, assume_clean, | |
1021 | bitmap_file, bitmap_chunk, write_behind, delay); | |
1022 | break; | |
1023 | case MISC: | |
1024 | ||
1025 | if (devmode == 'E') { | |
1026 | if (devlist == NULL && !scan) { | |
1027 | fprintf(stderr, Name ": No devices to examine\n"); | |
1028 | exit(2); | |
1029 | } | |
1030 | if (devlist == NULL) | |
1031 | devlist = conf_get_devs(configfile); | |
1032 | if (devlist == NULL) { | |
1033 | fprintf(stderr, Name ": No devices listed in %s\n", configfile?configfile:DefaultConfFile); | |
1034 | exit(1); | |
1035 | } | |
1036 | rv = Examine(devlist, scan?(verbose>1?0:verbose+1):brief, scan, SparcAdjust, ss); | |
1037 | } else { | |
1038 | if (devlist == NULL) { | |
1039 | if (devmode=='D' && scan) { | |
1040 | /* apply --detail to all devices in /proc/mdstat */ | |
1041 | struct mdstat_ent *ms = mdstat_read(0, 1); | |
1042 | struct mdstat_ent *e; | |
1043 | for (e=ms ; e ; e=e->next) { | |
1044 | char *name = get_md_name(e->devnum); | |
1045 | ||
1046 | if (!name) { | |
1047 | fprintf(stderr, Name ": cannot find device file for %s\n", | |
1048 | e->dev); | |
1049 | continue; | |
1050 | } | |
1051 | rv |= Detail(name, verbose>1?0:verbose+1, test); | |
1052 | put_md_name(name); | |
1053 | } | |
1054 | } else if (devmode == 'S' && scan) { | |
1055 | /* apply --stop to all devices in /proc/mdstat */ | |
1056 | /* Due to possible stacking of devices, repeat until | |
1057 | * nothing more can be stopped | |
1058 | */ | |
1059 | int progress=1, err; | |
1060 | int last = 0; | |
1061 | do { | |
1062 | struct mdstat_ent *ms = mdstat_read(0, 0); | |
1063 | struct mdstat_ent *e; | |
1064 | ||
1065 | if (!progress) last = 1; | |
1066 | progress = 0; err = 0; | |
1067 | for (e=ms ; e ; e=e->next) { | |
1068 | char *name = get_md_name(e->devnum); | |
1069 | ||
1070 | if (!name) { | |
1071 | fprintf(stderr, Name ": cannot find device file for %s\n", | |
1072 | e->dev); | |
1073 | continue; | |
1074 | } | |
1075 | mdfd = open_mddev(name, 0); | |
1076 | if (mdfd >= 0) { | |
1077 | if (Manage_runstop(name, mdfd, -1, !last)) | |
1078 | err = 1; | |
1079 | else | |
1080 | progress = 1; | |
1081 | close(mdfd); | |
1082 | } | |
1083 | ||
1084 | put_md_name(name); | |
1085 | } | |
1086 | } while (!last && err); | |
1087 | if (err) rv |= 1; | |
1088 | } else { | |
1089 | fprintf(stderr, Name ": No devices given.\n"); | |
1090 | exit(2); | |
1091 | } | |
1092 | } | |
1093 | for (dv=devlist ; dv; dv=dv->next) { | |
1094 | switch(dv->disposition) { | |
1095 | case 'D': | |
1096 | rv |= Detail(dv->devname, brief?1+verbose:0, test); continue; | |
1097 | case 'K': /* Zero superblock */ | |
1098 | rv |= Kill(dv->devname, force, quiet); continue; | |
1099 | case 'Q': | |
1100 | rv |= Query(dv->devname); continue; | |
1101 | case 'X': | |
1102 | rv |= ExamineBitmap(dv->devname, brief, ss); continue; | |
1103 | } | |
1104 | mdfd = open_mddev(dv->devname, 0); | |
1105 | if (mdfd>=0) { | |
1106 | switch(dv->disposition) { | |
1107 | case 'R': | |
1108 | rv |= Manage_runstop(dv->devname, mdfd, 1, 0); break; | |
1109 | case 'S': | |
1110 | rv |= Manage_runstop(dv->devname, mdfd, -1, 0); break; | |
1111 | case 'o': | |
1112 | rv |= Manage_ro(dv->devname, mdfd, 1); break; | |
1113 | case 'w': | |
1114 | rv |= Manage_ro(dv->devname, mdfd, -1); break; | |
1115 | } | |
1116 | close(mdfd); | |
1117 | } else | |
1118 | rv |= 1; | |
1119 | } | |
1120 | } | |
1121 | break; | |
1122 | case MONITOR: | |
1123 | if (!devlist && !scan) { | |
1124 | fprintf(stderr, Name ": Cannot monitor: need --scan or at least one device\n"); | |
1125 | rv = 1; | |
1126 | break; | |
1127 | } | |
1128 | if (pidfile && !daemonise) { | |
1129 | fprintf(stderr, Name ": Cannot write a pid file when not in daemon mode\n"); | |
1130 | rv = 1; | |
1131 | break; | |
1132 | } | |
1133 | rv= Monitor(devlist, mailaddr, program, | |
1134 | delay?delay:60, daemonise, scan, oneshot, | |
1135 | dosyslog, configfile, test, pidfile); | |
1136 | break; | |
1137 | ||
1138 | case GROW: | |
1139 | if (devs_found > 1) { | |
1140 | ||
1141 | /* must be '-a'. */ | |
1142 | if (size >= 0 || raiddisks) { | |
1143 | fprintf(stderr, Name ": --size, --raiddisks, and --add are exclusing in --grow mode\n"); | |
1144 | rv = 1; | |
1145 | break; | |
1146 | } | |
1147 | for (dv=devlist->next; dv ; dv=dv->next) { | |
1148 | rv = Grow_Add_device(devlist->devname, mdfd, dv->devname); | |
1149 | if (rv) | |
1150 | break; | |
1151 | } | |
1152 | } else if ((size >= 0) + (raiddisks != 0) + (layout != UnSet) + (bitmap_file != NULL)> 1) { | |
1153 | fprintf(stderr, Name ": can change at most one of size, raiddisks, bitmap, and layout\n"); | |
1154 | rv = 1; | |
1155 | break; | |
1156 | } else if (layout != UnSet) | |
1157 | rv = Manage_reconfig(devlist->devname, mdfd, layout); | |
1158 | else if (size >= 0 || raiddisks) | |
1159 | rv = Grow_reshape(devlist->devname, mdfd, quiet, backup_file, | |
1160 | size, level, layout, chunk, raiddisks); | |
1161 | else if (bitmap_file) { | |
1162 | if (delay == 0) delay = DEFAULT_BITMAP_DELAY; | |
1163 | rv = Grow_addbitmap(devlist->devname, mdfd, bitmap_file, | |
1164 | bitmap_chunk, delay, write_behind, force); | |
1165 | } else | |
1166 | fprintf(stderr, Name ": no changes to --grow\n"); | |
1167 | break; | |
1168 | } | |
1169 | exit(rv); | |
1170 | } |