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Commit | Line | Data |
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64c4757e | 1 | /* |
9a9dab36 | 2 | * mdadm - manage Linux "md" devices aka RAID arrays. |
64c4757e | 3 | * |
cd29a5c8 | 4 | * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au> |
64c4757e NB |
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 | ||
9a9dab36 | 30 | #include "mdadm.h" |
64c4757e | 31 | #include "md_p.h" |
dd0781e5 | 32 | #include <ctype.h> |
64c4757e | 33 | |
dd0781e5 NB |
34 | |
35 | void make_parts(char *dev, int cnt) | |
64c4757e | 36 | { |
dd0781e5 NB |
37 | /* make 'cnt' partition devices for 'dev' |
38 | * We use the major/minor from dev and add 1..cnt | |
39 | * If dev ends with a digit, we add "_p%d" else "%d" | |
40 | * If the name exists, we use it's owner/mode, | |
41 | * else that of dev | |
42 | */ | |
43 | struct stat stb; | |
44 | int major, minor; | |
45 | int i; | |
46 | char *name = malloc(strlen(dev) + 20); | |
47 | int dig = isdigit(dev[strlen(dev)-1]); | |
48 | ||
49 | if (stat(dev, &stb)!= 0) | |
50 | return; | |
51 | if (!S_ISBLK(stb.st_mode)) | |
52 | return; | |
53 | major = MAJOR(stb.st_rdev); | |
54 | minor = MINOR(stb.st_rdev); | |
55 | for (i=1; i <= cnt ; i++) { | |
56 | struct stat stb2; | |
57 | sprintf(name, "%s%s%d", dev, dig?"_p":"", i); | |
58 | if (stat(name, &stb2)==0) { | |
59 | if (!S_ISBLK(stb2.st_mode)) | |
60 | continue; | |
61 | if (stb2.st_rdev == MKDEV(major, minor+i)) | |
62 | continue; | |
63 | unlink(name); | |
64 | } else { | |
65 | stb2 = stb; | |
66 | } | |
67 | mknod(name, S_IFBLK | 0600, MKDEV(major, minor+i)); | |
68 | chown(name, stb2.st_uid, stb2.st_gid); | |
69 | chmod(name, stb2.st_mode & 07777); | |
70 | } | |
71 | } | |
72 | ||
73 | /* | |
74 | * Open a given md device, and check that it really is one. | |
75 | * If 'autof' is given, then we need to create, or recreate, the md device. | |
76 | * If the name already exists, and is not a block device, we fail. | |
77 | * If it exists and is not an md device, is not the right type (partitioned or not), | |
78 | * or is currently in-use, we remove the device, but remember the owner and mode. | |
79 | * If it now doesn't exist, we find a few md array and create the device. | |
80 | * Default ownership is user=0, group=0 perm=0600 | |
81 | */ | |
82 | int open_mddev(char *dev, int autof) | |
83 | { | |
84 | int mdfd; | |
85 | struct stat stb; | |
86 | int major = MD_MAJOR; | |
87 | int minor; | |
88 | int must_remove = 0; | |
89 | struct mdstat_ent *mdlist; | |
90 | int num; | |
91 | ||
92 | if (autof) { | |
93 | /* autof is set, so we need to check that the name is ok, | |
94 | * and possibly create one if not | |
95 | */ | |
96 | stb.st_mode = 0; | |
97 | if (lstat(dev, &stb)==0 && ! S_ISBLK(stb.st_mode)) { | |
98 | fprintf(stderr, Name ": %s is not a block device.\n", | |
99 | dev); | |
100 | return -1; | |
101 | } | |
102 | /* check major number is correct */ | |
103 | if (autof>0) | |
104 | major = get_mdp_major(); | |
105 | if (stb.st_mode && MAJOR(stb.st_rdev) != major) | |
106 | must_remove = 1; | |
107 | if (stb.st_mode && !must_remove) { | |
108 | mdu_array_info_t array; | |
109 | /* looks ok, see if it is available */ | |
110 | mdfd = open(dev, O_RDWR, 0); | |
111 | if (mdfd < 0) { | |
112 | fprintf(stderr, Name ": error opening %s: %s\n", | |
113 | dev, strerror(errno)); | |
114 | return -1; | |
115 | } else if (md_get_version(mdfd) <= 0) { | |
116 | fprintf(stderr, Name ": %s does not appear to be an md device\n", | |
117 | dev); | |
118 | close(mdfd); | |
119 | return -1; | |
120 | } | |
121 | if (ioctl(mdfd, GET_ARRAY_INFO, &array)==0) { | |
122 | /* already active */ | |
123 | must_remove = 1; | |
124 | close(mdfd); | |
125 | } else { | |
126 | if (autof > 0) | |
127 | make_parts(dev, autof); | |
128 | return mdfd; | |
129 | } | |
130 | } | |
131 | /* Ok, need to find a minor that is not in use. | |
132 | * Easiest to read /proc/mdstat, and hunt through for | |
133 | * an unused number | |
134 | */ | |
135 | mdlist = mdstat_read(0); | |
136 | for (num= (autof>0)?-1:0 ; ; num+= (autof>2)?-1:1) { | |
137 | struct mdstat_ent *me; | |
138 | for (me=mdlist; me; me=me->next) | |
139 | if (me->devnum == num) | |
140 | break; | |
141 | if (!me) { | |
142 | /* doesn't exist if mdstat. | |
143 | * make sure it is new to /dev too | |
144 | */ | |
145 | char *dn; | |
146 | if (autof > 0) | |
147 | minor = (-1-num) << MdpMinorShift; | |
148 | else | |
149 | minor = num; | |
150 | dn = map_dev(major,minor); | |
151 | if (dn==NULL || is_standard(dn)) { | |
152 | /* this number only used by a 'standard' name, | |
153 | * so it is safe to use | |
154 | */ | |
155 | break; | |
156 | } | |
157 | } | |
158 | } | |
159 | /* 'num' is the number to use, >=0 for md, <0 for mdp */ | |
160 | if (must_remove) { | |
161 | /* never remove a device name that ends /mdNN or /dNN, | |
162 | * that would be confusing | |
163 | */ | |
164 | if (is_standard(dev)) { | |
165 | fprintf(stderr, Name ": --auto refusing to remove %s as it looks like a standard name.\n", | |
166 | dev); | |
167 | return -1; | |
168 | } | |
169 | unlink(dev); | |
170 | } | |
171 | ||
172 | if (mknod(dev, S_IFBLK|0600, MKDEV(major, minor))!= 0) { | |
173 | fprintf(stderr, Name ": failed to create %s\n", dev); | |
174 | return -1; | |
175 | } | |
176 | if (must_remove) { | |
177 | chown(dev, stb.st_uid, stb.st_gid); | |
178 | chmod(dev, stb.st_mode & 07777); | |
179 | } | |
180 | make_parts(dev,autof); | |
181 | } | |
182 | mdfd = open(dev, O_RDWR, 0); | |
52826846 | 183 | if (mdfd < 0) |
e0d19036 | 184 | fprintf(stderr, Name ": error opening %s: %s\n", |
52826846 NB |
185 | dev, strerror(errno)); |
186 | else if (md_get_version(mdfd) <= 0) { | |
187 | fprintf(stderr, Name ": %s does not appear to be an md device\n", | |
188 | dev); | |
189 | close(mdfd); | |
190 | mdfd = -1; | |
64c4757e | 191 | } |
52826846 NB |
192 | return mdfd; |
193 | } | |
64c4757e | 194 | |
64c4757e | 195 | |
52826846 NB |
196 | |
197 | int main(int argc, char *argv[]) | |
198 | { | |
e0d19036 | 199 | int mode = 0; |
52826846 | 200 | int opt; |
e0d19036 | 201 | int option_index; |
52826846 NB |
202 | char *help_text; |
203 | char *c; | |
204 | int rv; | |
52826846 NB |
205 | |
206 | int chunk = 0; | |
dd0781e5 | 207 | int size = -1; |
98c6faba NB |
208 | int level = UnSet; |
209 | int layout = UnSet; | |
52826846 NB |
210 | int raiddisks = 0; |
211 | int sparedisks = 0; | |
212 | struct mddev_ident_s ident; | |
213 | char *configfile = NULL; | |
cd29a5c8 | 214 | char *cp; |
5787fa49 | 215 | char *update = NULL; |
52826846 NB |
216 | int scan = 0; |
217 | char devmode = 0; | |
218 | int runstop = 0; | |
219 | int readonly = 0; | |
bd526cee | 220 | int SparcAdjust = 0; |
cd29a5c8 NB |
221 | mddev_dev_t devlist = NULL; |
222 | mddev_dev_t *devlistend = & devlist; | |
223 | mddev_dev_t dv; | |
52826846 NB |
224 | int devs_found = 0; |
225 | int verbose = 0; | |
cd29a5c8 | 226 | int brief = 0; |
52826846 | 227 | int force = 0; |
feb716e9 | 228 | int test = 0; |
dd0781e5 NB |
229 | int assume_clean = 0; |
230 | int autof = 0; /* -1 for non-partitions, 1 or more to create partitions */ | |
52826846 NB |
231 | |
232 | char *mailaddr = NULL; | |
233 | char *program = NULL; | |
234 | int delay = 0; | |
d013a55e | 235 | int daemonise = 0; |
aa88f531 | 236 | int oneshot = 0; |
52826846 | 237 | |
e5329c37 NB |
238 | int copies; |
239 | ||
52826846 NB |
240 | int mdfd = -1; |
241 | ||
242 | ident.uuid_set=0; | |
98c6faba NB |
243 | ident.level = UnSet; |
244 | ident.raid_disks = UnSet; | |
245 | ident.super_minor= UnSet; | |
52826846 NB |
246 | ident.devices=0; |
247 | ||
e0d19036 NB |
248 | while ((option_index = -1) , |
249 | (opt=getopt_long(argc, argv, | |
52826846 | 250 | short_options, long_options, |
e0d19036 NB |
251 | &option_index)) != -1) { |
252 | int newmode = mode; | |
253 | /* firstly, so mode-independant options */ | |
52826846 | 254 | switch(opt) { |
52826846 NB |
255 | case 'h': |
256 | help_text = Help; | |
56eedc1a NB |
257 | if (option_index > 0 && |
258 | strcmp(long_options[option_index].name, "help-options")==0) | |
259 | help_text = OptionHelp; | |
260 | else | |
261 | switch (mode) { | |
262 | case ASSEMBLE : help_text = Help_assemble; break; | |
263 | case BUILD : help_text = Help_build; break; | |
264 | case CREATE : help_text = Help_create; break; | |
265 | case MANAGE : help_text = Help_manage; break; | |
266 | case MISC : help_text = Help_misc; break; | |
267 | case MONITOR : help_text = Help_monitor; break; | |
dd0781e5 | 268 | case GROW : help_text = Help_grow; break; |
56eedc1a | 269 | } |
52826846 NB |
270 | fputs(help_text,stderr); |
271 | exit(0); | |
272 | ||
273 | case 'V': | |
274 | fputs(Version, stderr); | |
275 | exit(0); | |
276 | ||
277 | case 'v': verbose = 1; | |
278 | continue; | |
279 | ||
cd29a5c8 NB |
280 | case 'b': brief = 1; |
281 | continue; | |
282 | ||
e0d19036 NB |
283 | case ':': |
284 | case '?': | |
285 | fputs(Usage, stderr); | |
286 | exit(2); | |
287 | } | |
288 | /* second, figure out the mode. | |
289 | * Some options force the mode. Others | |
290 | * set the mode if it isn't already | |
291 | */ | |
292 | ||
293 | switch(opt) { | |
294 | case '@': /* just incase they say --manage */ | |
295 | newmode = MANAGE; break; | |
296 | case 'a': | |
297 | case 'r': | |
298 | case 'f': | |
299 | case 1 : if (!mode) newmode = MANAGE; break; | |
300 | ||
301 | case 'A': newmode = ASSEMBLE; break; | |
302 | case 'B': newmode = BUILD; break; | |
303 | case 'C': newmode = CREATE; break; | |
304 | case 'F': newmode = MONITOR;break; | |
dd0781e5 | 305 | case 'G': newmode = GROW; break; |
e0d19036 NB |
306 | |
307 | case '#': | |
308 | case 'D': | |
309 | case 'E': | |
310 | case 'Q': newmode = MISC; break; | |
311 | case 'R': | |
312 | case 'S': | |
313 | case 'o': | |
314 | case 'w': | |
315 | case 'K': if (!mode) newmode = MISC; break; | |
316 | } | |
317 | if (mode && newmode == mode) { | |
318 | /* everybody happy ! */ | |
319 | } else if (mode && newmode != mode) { | |
320 | /* not allowed.. */ | |
321 | fprintf(stderr, Name ": "); | |
322 | if (option_index >= 0) | |
323 | fprintf(stderr, "--%s", long_options[option_index].name); | |
324 | else | |
325 | fprintf(stderr, "-%c", opt); | |
326 | fprintf(stderr, " would set mode to %s, but it is already %s.\n", | |
327 | map_num(modes, newmode), | |
328 | map_num(modes, mode)); | |
329 | exit(2); | |
330 | } else if (!mode && newmode) { | |
331 | mode = newmode; | |
332 | } else { | |
333 | /* special case of -c --help */ | |
334 | if (opt == 'c' && | |
335 | ( strncmp(optarg, "--h", 3)==0 || | |
336 | strncmp(optarg, "-h", 2)==0)) { | |
337 | fputs(Help_config, stderr); | |
338 | exit(0); | |
cd29a5c8 | 339 | } |
e0d19036 NB |
340 | if (option_index >= 0) |
341 | fprintf(stderr, "--%s", long_options[option_index].name); | |
342 | else | |
343 | fprintf(stderr, "-%c", opt); | |
344 | fprintf(stderr, " does not set the mode, and so cannot be first.\n"); | |
345 | exit(2); | |
346 | } | |
347 | ||
348 | /* if we just set the mode, then done */ | |
349 | switch(opt) { | |
350 | case '@': | |
351 | case '#': | |
352 | case 'A': | |
353 | case 'B': | |
354 | case 'C': | |
355 | case 'F': | |
dd0781e5 | 356 | case 'G': |
e0d19036 NB |
357 | continue; |
358 | } | |
359 | if (opt == 1) { | |
360 | /* an undecorated option - must be a device name. | |
361 | */ | |
cd29a5c8 | 362 | if (devs_found > 0 && mode == '@' && !devmode) { |
dd0781e5 | 363 | fprintf(stderr, Name ": Must give one of -a/-r/-f for subsequent devices at %s\n", optarg); |
52826846 NB |
364 | exit(2); |
365 | } | |
e5329c37 NB |
366 | if (devs_found > 0 && mode == 'G' && !devmode) { |
367 | fprintf(stderr, Name ": Must give one of -a for devices do add: %s\n", optarg); | |
368 | exit(2); | |
369 | } | |
cd29a5c8 NB |
370 | dv = malloc(sizeof(*dv)); |
371 | if (dv == NULL) { | |
372 | fprintf(stderr, Name ": malloc failed\n"); | |
373 | exit(3); | |
374 | } | |
375 | dv->devname = optarg; | |
376 | dv->disposition = devmode; | |
377 | dv->next = NULL; | |
378 | *devlistend = dv; | |
379 | devlistend = &dv->next; | |
380 | ||
52826846 NB |
381 | devs_found++; |
382 | continue; | |
682c7051 | 383 | } |
682c7051 | 384 | |
52826846 NB |
385 | /* We've got a mode, and opt is now something else which |
386 | * could depend on the mode */ | |
387 | #define O(a,b) ((a<<8)|b) | |
388 | switch (O(mode,opt)) { | |
e0d19036 NB |
389 | case O(CREATE,'c'): |
390 | case O(BUILD,'c'): /* chunk or rounding */ | |
52826846 NB |
391 | if (chunk) { |
392 | fprintf(stderr, Name ": chunk/rounding may only be specified once. " | |
393 | "Second value is %s.\n", optarg); | |
394 | exit(2); | |
395 | } | |
396 | chunk = strtol(optarg, &c, 10); | |
397 | if (!optarg[0] || *c || chunk<4 || ((chunk-1)&chunk)) { | |
398 | fprintf(stderr, Name ": invalid chunk/rounding value: %s\n", | |
399 | optarg); | |
400 | exit(2); | |
401 | } | |
402 | continue; | |
64c4757e | 403 | |
dd0781e5 | 404 | case O(GROW,'z'): |
e0d19036 | 405 | case O(CREATE,'z'): /* size */ |
dd0781e5 | 406 | if (size >= 0) { |
52826846 NB |
407 | fprintf(stderr, Name ": size may only be specified once. " |
408 | "Second value is %s.\n", optarg); | |
409 | exit(2); | |
410 | } | |
dd0781e5 NB |
411 | if (strcmp(optarg, "max")==0) |
412 | size = 0; | |
413 | else { | |
414 | size = strtol(optarg, &c, 10); | |
415 | if (!optarg[0] || *c || size < 4) { | |
416 | fprintf(stderr, Name ": invalid size: %s\n", | |
417 | optarg); | |
418 | exit(2); | |
419 | } | |
52826846 NB |
420 | } |
421 | continue; | |
64c4757e | 422 | |
e0d19036 NB |
423 | case O(CREATE,'l'): |
424 | case O(BUILD,'l'): /* set raid level*/ | |
98c6faba | 425 | if (level != UnSet) { |
52826846 NB |
426 | fprintf(stderr, Name ": raid level may only be set once. " |
427 | "Second value is %s.\n", optarg); | |
428 | exit(2); | |
429 | } | |
430 | level = map_name(pers, optarg); | |
98c6faba | 431 | if (level == UnSet) { |
52826846 NB |
432 | fprintf(stderr, Name ": invalid raid level: %s\n", |
433 | optarg); | |
434 | exit(2); | |
435 | } | |
dd0781e5 | 436 | if (level != 0 && level != -1 && level != 1 && level != -4 && mode == BUILD) { |
52826846 NB |
437 | fprintf(stderr, Name ": Raid level %s not permitted with --build.\n", |
438 | optarg); | |
439 | exit(2); | |
440 | } | |
e0d19036 | 441 | if (sparedisks > 0 && level < 1 && level >= -1) { |
b83d95f3 | 442 | fprintf(stderr, Name ": raid level %s is incompatible with spare-devices setting.\n", |
52826846 NB |
443 | optarg); |
444 | exit(2); | |
445 | } | |
cd29a5c8 | 446 | ident.level = level; |
52826846 | 447 | continue; |
64c4757e | 448 | |
e0d19036 | 449 | case O(CREATE,'p'): /* raid5 layout */ |
e5329c37 | 450 | if (layout != UnSet) { |
52826846 NB |
451 | fprintf(stderr,Name ": layout may only be sent once. " |
452 | "Second value was %s\n", optarg); | |
453 | exit(2); | |
454 | } | |
455 | switch(level) { | |
456 | default: | |
56eb10c0 | 457 | fprintf(stderr, Name ": layout not meaningful for %s arrays.\n", |
52826846 NB |
458 | map_num(pers, level)); |
459 | exit(2); | |
98c6faba | 460 | case UnSet: |
52826846 NB |
461 | fprintf(stderr, Name ": raid level must be given before layout.\n"); |
462 | exit(2); | |
463 | ||
464 | case 5: | |
98c6faba | 465 | case 6: |
52826846 | 466 | layout = map_name(r5layout, optarg); |
98c6faba | 467 | if (layout==UnSet) { |
52826846 NB |
468 | fprintf(stderr, Name ": layout %s not understood for raid5.\n", |
469 | optarg); | |
470 | exit(2); | |
471 | } | |
472 | break; | |
e5329c37 NB |
473 | |
474 | case 10: | |
475 | /* 'f' or 'n' followed by a number <= raid_disks */ | |
476 | if ((optarg[0] != 'n' && optarg[0] != 'f') || | |
477 | (copies = strtoul(optarg+1, &cp, 10)) < 1 || | |
478 | copies > 200 || | |
479 | *cp) { | |
480 | fprintf(stderr, Name ": layout for raid10 must be 'nNN' or 'fNN' where NN is a number, not %s\n", optarg); | |
481 | exit(2); | |
482 | } | |
483 | if (optarg[0] == 'n') | |
484 | layout = 256 + copies; | |
485 | else | |
486 | layout = 1 + (copies<<8); | |
487 | break; | |
52826846 NB |
488 | } |
489 | continue; | |
490 | ||
dd0781e5 NB |
491 | case O(CREATE,3): |
492 | case O(BUILD,3): /* assume clean */ | |
493 | assume_clean = 1; | |
494 | continue; | |
495 | ||
496 | case O(GROW,'n'): | |
e0d19036 NB |
497 | case O(CREATE,'n'): |
498 | case O(BUILD,'n'): /* number of raid disks */ | |
52826846 | 499 | if (raiddisks) { |
b83d95f3 | 500 | fprintf(stderr, Name ": raid-devices set twice: %d and %s\n", |
52826846 NB |
501 | raiddisks, optarg); |
502 | exit(2); | |
503 | } | |
504 | raiddisks = strtol(optarg, &c, 10); | |
505 | if (!optarg[0] || *c || raiddisks<=0 || raiddisks > MD_SB_DISKS) { | |
b83d95f3 | 506 | fprintf(stderr, Name ": invalid number of raid devices: %s\n", |
52826846 NB |
507 | optarg); |
508 | exit(2); | |
509 | } | |
aa88f531 NB |
510 | if (raiddisks == 1 && !force) { |
511 | fprintf(stderr, Name ": '1' is an unusual number of drives for an array, so it is probably\n" | |
512 | " a mistake. If you really mean it you will need to specify --force before\n" | |
513 | " setting the number of drives.\n"); | |
514 | exit(2); | |
515 | } | |
cd29a5c8 | 516 | ident.raid_disks = raiddisks; |
52826846 NB |
517 | continue; |
518 | ||
e0d19036 | 519 | case O(CREATE,'x'): /* number of spare (eXtra) discs */ |
52826846 | 520 | if (sparedisks) { |
b83d95f3 | 521 | fprintf(stderr,Name ": spare-devices set twice: %d and %s\n", |
52826846 NB |
522 | sparedisks, optarg); |
523 | exit(2); | |
524 | } | |
98c6faba | 525 | if (level != UnSet && level <= 0 && level >= -1) { |
b83d95f3 | 526 | fprintf(stderr, Name ": spare-devices setting is incompatible with raid level %d\n", |
52826846 NB |
527 | level); |
528 | exit(2); | |
529 | } | |
530 | sparedisks = strtol(optarg, &c, 10); | |
531 | if (!optarg[0] || *c || sparedisks < 0 || sparedisks > MD_SB_DISKS - raiddisks) { | |
b83d95f3 | 532 | fprintf(stderr, Name ": invalid number of spare-devices: %s\n", |
52826846 NB |
533 | optarg); |
534 | exit(2); | |
535 | } | |
536 | continue; | |
dd0781e5 NB |
537 | |
538 | case O(CREATE,'a'): | |
539 | case O(BUILD,'a'): | |
540 | case O(ASSEMBLE,'a'): /* auto-creation of device node */ | |
541 | if (optarg == NULL) | |
542 | autof = -1; | |
543 | else if (strcasecmp(optarg,"no")==0) | |
544 | autof = 0; | |
545 | else if (strcasecmp(optarg,"yes")==0 || strcasecmp(optarg,"md")==0) | |
546 | autof = -1; | |
547 | else { | |
548 | /* There might be digits, and maybe a hypen, at the end */ | |
549 | char *e = optarg + strlen(optarg); | |
550 | int num = 4; | |
551 | int len; | |
552 | while (e > optarg && isdigit(e[-1])) | |
553 | e--; | |
554 | if (*e) { | |
555 | num = atoi(e); | |
556 | if (num <= 0) num = 1; | |
557 | } | |
558 | if (e > optarg && e[-1] == '-') | |
559 | e--; | |
560 | len = e - optarg; | |
561 | if ((len == 3 && strncasecmp(optarg,"mdp",3)==0) || | |
562 | (len == 1 && strncasecmp(optarg,"p",1)==0) || | |
563 | (len >= 4 && strncasecmp(optarg,"part",4)==0)) | |
564 | autof = num; | |
565 | else { | |
566 | fprintf(stderr, Name ": --auto flag arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" | |
567 | " optionally followed by a number.\n", | |
568 | optarg); | |
569 | exit(2); | |
570 | } | |
571 | } | |
572 | continue; | |
573 | ||
aa88f531 | 574 | case O(BUILD,'f'): /* force honouring '-n 1' */ |
e0d19036 NB |
575 | case O(CREATE,'f'): /* force honouring of device list */ |
576 | case O(ASSEMBLE,'f'): /* force assembly */ | |
577 | case O(MISC,'f'): /* force zero */ | |
52826846 NB |
578 | force=1; |
579 | continue; | |
580 | ||
581 | /* now for the Assemble options */ | |
e0d19036 | 582 | case O(ASSEMBLE,'u'): /* uuid of array */ |
52826846 | 583 | if (ident.uuid_set) { |
cd29a5c8 | 584 | fprintf(stderr, Name ": uuid cannot be set twice. " |
52826846 NB |
585 | "Second value %s.\n", optarg); |
586 | exit(2); | |
587 | } | |
588 | if (parse_uuid(optarg, ident.uuid)) | |
589 | ident.uuid_set = 1; | |
590 | else { | |
591 | fprintf(stderr,Name ": Bad uuid: %s\n", optarg); | |
592 | exit(2); | |
593 | } | |
594 | continue; | |
595 | ||
e0d19036 | 596 | case O(ASSEMBLE,'m'): /* super-minor for array */ |
98c6faba | 597 | if (ident.super_minor != UnSet) { |
cd29a5c8 NB |
598 | fprintf(stderr, Name ": super-minor cannot be set twice. " |
599 | "Second value: %s.\n", optarg); | |
600 | exit(2); | |
601 | } | |
d013a55e NB |
602 | if (strcmp(optarg, "dev")==0) |
603 | ident.super_minor = -2; | |
604 | else { | |
605 | ident.super_minor = strtoul(optarg, &cp, 10); | |
606 | if (!optarg[0] || *cp) { | |
607 | fprintf(stderr, Name ": Bad super-minor number: %s.\n", optarg); | |
608 | exit(2); | |
609 | } | |
cd29a5c8 NB |
610 | } |
611 | continue; | |
612 | ||
5787fa49 NB |
613 | case O(ASSEMBLE,'U'): /* update the superblock */ |
614 | if (update) { | |
615 | fprintf(stderr, Name ": Can only update one aspect of superblock, both %s and %s given.\n", | |
616 | update, optarg); | |
617 | exit(2); | |
618 | } | |
619 | update = optarg; | |
e5329c37 NB |
620 | if (strcmp(update, "sparc2.2")==0) |
621 | continue; | |
5787fa49 NB |
622 | if (strcmp(update, "super-minor") == 0) |
623 | continue; | |
feb716e9 NB |
624 | if (strcmp(update, "summaries")==0) |
625 | continue; | |
e5329c37 NB |
626 | if (strcmp(update, "resync")==0) |
627 | continue; | |
628 | fprintf(stderr, Name ": '--update %s' invalid. Only 'sparc2.2', 'super-minor', 'resync' or 'summaries' supported\n",update); | |
5787fa49 NB |
629 | exit(2); |
630 | ||
e0d19036 | 631 | case O(ASSEMBLE,'c'): /* config file */ |
2d465520 | 632 | case O(MISC, 'c'): |
e0d19036 | 633 | case O(MONITOR,'c'): |
52826846 NB |
634 | if (configfile) { |
635 | fprintf(stderr, Name ": configfile cannot be set twice. " | |
636 | "Second value is %s.\n", optarg); | |
637 | exit(2); | |
638 | } | |
639 | configfile = optarg; | |
640 | /* FIXME possibly check that config file exists. Even parse it */ | |
641 | continue; | |
e0d19036 NB |
642 | case O(ASSEMBLE,'s'): /* scan */ |
643 | case O(MISC,'s'): | |
644 | case O(MONITOR,'s'): | |
52826846 NB |
645 | scan = 1; |
646 | continue; | |
647 | ||
e0d19036 | 648 | case O(MONITOR,'m'): /* mail address */ |
52826846 NB |
649 | if (mailaddr) |
650 | fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n", | |
651 | optarg); | |
652 | else | |
653 | mailaddr = optarg; | |
654 | continue; | |
655 | ||
e0d19036 | 656 | case O(MONITOR,'p'): /* alert program */ |
52826846 NB |
657 | if (program) |
658 | fprintf(stderr, Name ": only specify one alter program. %s ignored.\n", | |
659 | optarg); | |
660 | else | |
661 | program = optarg; | |
662 | continue; | |
64c4757e | 663 | |
e0d19036 | 664 | case O(MONITOR,'d'): /* delay in seconds */ |
52826846 NB |
665 | if (delay) |
666 | fprintf(stderr, Name ": only specify delay once. %s ignored.\n", | |
667 | optarg); | |
668 | else { | |
669 | delay = strtol(optarg, &c, 10); | |
670 | if (!optarg[0] || *c || delay<1) { | |
671 | fprintf(stderr, Name ": invalid delay: %s\n", | |
672 | optarg); | |
673 | exit(2); | |
674 | } | |
675 | } | |
676 | continue; | |
d013a55e NB |
677 | case O(MONITOR,'f'): /* daemonise */ |
678 | daemonise = 1; | |
679 | continue; | |
aa88f531 NB |
680 | case O(MONITOR,'1'): /* oneshot */ |
681 | oneshot = 1; | |
682 | continue; | |
98c6faba NB |
683 | case O(MONITOR,'t'): /* test */ |
684 | test = 1; | |
685 | continue; | |
52826846 NB |
686 | |
687 | /* now the general management options. Some are applicable | |
688 | * to other modes. None have arguments. | |
689 | */ | |
e5329c37 | 690 | case O(GROW,'a'): |
dd0781e5 | 691 | case O(MANAGE,'a'): /* add a drive */ |
52826846 NB |
692 | devmode = 'a'; |
693 | continue; | |
e0d19036 | 694 | case O(MANAGE,'r'): /* remove a drive */ |
52826846 NB |
695 | devmode = 'r'; |
696 | continue; | |
e0d19036 | 697 | case O(MANAGE,'f'): /* set faulty */ |
52826846 NB |
698 | devmode = 'f'; |
699 | continue; | |
e0d19036 NB |
700 | case O(MANAGE,'R'): |
701 | case O(ASSEMBLE,'R'): | |
702 | case O(BUILD,'R'): | |
703 | case O(CREATE,'R'): /* Run the array */ | |
52826846 NB |
704 | if (runstop < 0) { |
705 | fprintf(stderr, Name ": Cannot both Stop and Run an array\n"); | |
706 | exit(2); | |
707 | } | |
708 | runstop = 1; | |
709 | continue; | |
e0d19036 | 710 | case O(MANAGE,'S'): |
52826846 NB |
711 | if (runstop > 0) { |
712 | fprintf(stderr, Name ": Cannot both Run and Stop an array\n"); | |
713 | exit(2); | |
714 | } | |
715 | runstop = -1; | |
716 | continue; | |
717 | ||
e0d19036 | 718 | case O(MANAGE,'o'): |
52826846 NB |
719 | if (readonly < 0) { |
720 | fprintf(stderr, Name ": Cannot have both readonly and readwrite\n"); | |
721 | exit(2); | |
722 | } | |
723 | readonly = 1; | |
724 | continue; | |
e0d19036 | 725 | case O(MANAGE,'w'): |
52826846 | 726 | if (readonly > 0) { |
e0d19036 | 727 | fprintf(stderr, Name ": Cannot have both readwrite and readonly.\n"); |
52826846 NB |
728 | exit(2); |
729 | } | |
730 | readonly = -1; | |
731 | continue; | |
e0d19036 NB |
732 | |
733 | case O(MISC,'Q'): | |
734 | case O(MISC,'D'): | |
735 | case O(MISC,'E'): | |
736 | case O(MISC,'K'): | |
737 | case O(MISC,'R'): | |
738 | case O(MISC,'S'): | |
739 | case O(MISC,'o'): | |
740 | case O(MISC,'w'): | |
741 | if (devmode && devmode != opt && | |
742 | (devmode == 'E' || (opt == 'E' && devmode != 'Q'))) { | |
743 | fprintf(stderr, Name ": --examine/-E cannot be given with -%c\n", | |
744 | devmode =='E'?opt:devmode); | |
745 | exit(2); | |
746 | } | |
747 | devmode = opt; | |
748 | continue; | |
feb716e9 NB |
749 | case O(MISC,'t'): |
750 | test = 1; | |
751 | continue; | |
e0d19036 | 752 | |
bd526cee NB |
753 | case O(MISC, 22): |
754 | if (devmode != 'E') { | |
755 | fprintf(stderr, Name ": --sparc2.2 only allowed with --examine\n"); | |
756 | exit(2); | |
757 | } | |
758 | SparcAdjust = 1; | |
759 | continue; | |
52826846 NB |
760 | } |
761 | /* We have now processed all the valid options. Anything else is | |
762 | * an error | |
763 | */ | |
e0d19036 NB |
764 | fprintf(stderr, Name ": option %c not valid in %s mode\n", |
765 | opt, map_num(modes, mode)); | |
64c4757e | 766 | exit(2); |
52826846 NB |
767 | |
768 | } | |
769 | ||
770 | if (!mode) { | |
771 | fputs(Usage, stderr); | |
64c4757e | 772 | exit(2); |
64c4757e | 773 | } |
52826846 NB |
774 | /* Ok, got the option parsing out of the way |
775 | * hopefully it's mostly right but there might be some stuff | |
776 | * missing | |
777 | * | |
e0d19036 | 778 | * That is mosty checked in the per-mode stuff but... |
52826846 NB |
779 | * |
780 | * For @,B,C and A without -s, the first device listed must be an md device | |
781 | * we check that here and open it. | |
64c4757e | 782 | */ |
52826846 | 783 | |
dd0781e5 NB |
784 | if (mode==MANAGE || mode == BUILD || mode == CREATE || mode == GROW || |
785 | (mode == ASSEMBLE && ! scan)) { | |
52826846 NB |
786 | if (devs_found < 1) { |
787 | fprintf(stderr, Name ": an md device must be given in this mode\n"); | |
788 | exit(2); | |
789 | } | |
dd0781e5 NB |
790 | if ((int)ident.super_minor == -2 && autof) { |
791 | fprintf(stderr, Name ": --super-minor=dev is incompatible with --auto\n"); | |
792 | exit(2); | |
793 | } | |
794 | mdfd = open_mddev(devlist->devname, autof); | |
52826846 NB |
795 | if (mdfd < 0) |
796 | exit(1); | |
98c6faba | 797 | if ((int)ident.super_minor == -2) { |
d013a55e NB |
798 | struct stat stb; |
799 | fstat(mdfd, &stb); | |
800 | ident.super_minor = MINOR(stb.st_rdev); | |
801 | } | |
64c4757e | 802 | } |
52826846 | 803 | |
52826846 NB |
804 | rv = 0; |
805 | switch(mode) { | |
e0d19036 | 806 | case MANAGE: |
52826846 NB |
807 | /* readonly, add/remove, readwrite, runstop */ |
808 | if (readonly>0) | |
cd29a5c8 | 809 | rv = Manage_ro(devlist->devname, mdfd, readonly); |
52826846 | 810 | if (!rv && devs_found>1) |
cd29a5c8 NB |
811 | rv = Manage_subdevs(devlist->devname, mdfd, |
812 | devlist->next); | |
52826846 | 813 | if (!rv && readonly < 0) |
cd29a5c8 | 814 | rv = Manage_ro(devlist->devname, mdfd, readonly); |
52826846 | 815 | if (!rv && runstop) |
cd29a5c8 | 816 | rv = Manage_runstop(devlist->devname, mdfd, runstop); |
52826846 | 817 | break; |
e0d19036 | 818 | case ASSEMBLE: |
d013a55e | 819 | if (devs_found == 1 && ident.uuid_set == 0 && |
98c6faba | 820 | ident.super_minor == UnSet && !scan ) { |
d013a55e NB |
821 | /* Only a device has been given, so get details from config file */ |
822 | mddev_ident_t array_ident = conf_get_ident(configfile, devlist->devname); | |
dd0781e5 | 823 | mdfd = open_mddev(devlist->devname, array_ident->autof); |
d013a55e NB |
824 | if (mdfd < 0) |
825 | rv |= 1; | |
826 | else { | |
827 | if (array_ident == NULL) { | |
828 | fprintf(stderr, Name ": %s not identified in config file.\n", | |
829 | devlist->devname); | |
830 | rv |= 1; | |
831 | } | |
832 | else | |
833 | rv |= Assemble(devlist->devname, mdfd, array_ident, configfile, | |
834 | NULL, | |
835 | readonly, runstop, update, verbose, force); | |
836 | } | |
837 | } else if (!scan) | |
cd29a5c8 NB |
838 | rv = Assemble(devlist->devname, mdfd, &ident, configfile, |
839 | devlist->next, | |
5787fa49 NB |
840 | readonly, runstop, update, verbose, force); |
841 | else if (devs_found>0) { | |
842 | if (update && devs_found > 1) { | |
843 | fprintf(stderr, Name ": can only update a single array at a time\n"); | |
844 | exit(1); | |
845 | } | |
cd29a5c8 NB |
846 | for (dv = devlist ; dv ; dv=dv->next) { |
847 | mddev_ident_t array_ident = conf_get_ident(configfile, dv->devname); | |
dd0781e5 | 848 | mdfd = open_mddev(dv->devname, array_ident->autof); |
52826846 NB |
849 | if (mdfd < 0) { |
850 | rv |= 1; | |
851 | continue; | |
852 | } | |
853 | if (array_ident == NULL) { | |
854 | fprintf(stderr, Name ": %s not identified in config file.\n", | |
cd29a5c8 | 855 | dv->devname); |
52826846 NB |
856 | rv |= 1; |
857 | continue; | |
858 | } | |
cd29a5c8 NB |
859 | rv |= Assemble(dv->devname, mdfd, array_ident, configfile, |
860 | NULL, | |
5787fa49 | 861 | readonly, runstop, update, verbose, force); |
52826846 | 862 | } |
5787fa49 | 863 | } else { |
52826846 NB |
864 | mddev_ident_t array_list = conf_get_ident(configfile, NULL); |
865 | if (!array_list) { | |
866 | fprintf(stderr, Name ": No arrays found in config file\n"); | |
867 | rv = 1; | |
868 | } else | |
869 | for (; array_list; array_list = array_list->next) { | |
cd29a5c8 | 870 | mdu_array_info_t array; |
dd0781e5 | 871 | mdfd = open_mddev(array_list->devname, array_list->autof); |
52826846 NB |
872 | if (mdfd < 0) { |
873 | rv |= 1; | |
874 | continue; | |
875 | } | |
cd29a5c8 NB |
876 | if (ioctl(mdfd, GET_ARRAY_INFO, &array)>=0) |
877 | /* already assembled, skip */ | |
878 | continue; | |
52826846 NB |
879 | rv |= Assemble(array_list->devname, mdfd, |
880 | array_list, configfile, | |
cd29a5c8 | 881 | NULL, |
5787fa49 | 882 | readonly, runstop, NULL, verbose, force); |
52826846 NB |
883 | } |
884 | } | |
885 | break; | |
e0d19036 | 886 | case BUILD: |
dd0781e5 | 887 | rv = Build(devlist->devname, mdfd, chunk, level, raiddisks, devlist->next, assume_clean); |
52826846 | 888 | break; |
e0d19036 | 889 | case CREATE: |
dd0781e5 | 890 | rv = Create(devlist->devname, mdfd, chunk, level, layout, size<0 ? 0 : size, |
52826846 | 891 | raiddisks, sparedisks, |
cd29a5c8 | 892 | devs_found-1, devlist->next, runstop, verbose, force); |
52826846 | 893 | break; |
e0d19036 NB |
894 | case MISC: |
895 | ||
896 | if (devmode == 'E') { | |
897 | if (devlist == NULL && !scan) { | |
898 | fprintf(stderr, Name ": No devices to examine\n"); | |
899 | exit(2); | |
900 | } | |
901 | if (devlist == NULL) | |
902 | devlist = conf_get_devs(configfile); | |
903 | if (devlist == NULL) { | |
c913b90e | 904 | fprintf(stderr, Name ": No devices listed in %s\n", configfile?configfile:DefaultConfFile); |
e0d19036 NB |
905 | exit(1); |
906 | } | |
bd526cee | 907 | rv = Examine(devlist, scan?!verbose:brief, scan, SparcAdjust); |
e0d19036 NB |
908 | } else { |
909 | if (devlist == NULL) { | |
910 | if ((devmode == 'S' ||devmode=='D') && scan) { | |
911 | /* apply to all devices in /proc/mdstat */ | |
dd0781e5 | 912 | struct mdstat_ent *ms = mdstat_read(0); |
e0d19036 NB |
913 | struct mdstat_ent *e; |
914 | for (e=ms ; e ; e=e->next) { | |
915 | char *name = get_md_name(e->devnum); | |
916 | ||
917 | if (!name) { | |
918 | fprintf(stderr, Name ": cannot find device file for %s\n", | |
919 | e->dev); | |
920 | continue; | |
921 | } | |
922 | if (devmode == 'D') | |
feb716e9 | 923 | rv |= Detail(name, !verbose, test); |
e0d19036 | 924 | else if (devmode=='S') { |
dd0781e5 | 925 | mdfd = open_mddev(name, 0); |
e0d19036 NB |
926 | if (mdfd >= 0) |
927 | rv |= Manage_runstop(name, mdfd, -1); | |
928 | } | |
929 | put_md_name(name); | |
930 | } | |
931 | } else { | |
932 | fprintf(stderr, Name ": No devices given.\n"); | |
933 | exit(2); | |
934 | } | |
935 | } | |
936 | for (dv=devlist ; dv; dv=dv->next) { | |
937 | switch(dv->disposition) { | |
938 | case 'D': | |
feb716e9 | 939 | rv |= Detail(dv->devname, brief, test); continue; |
e0d19036 NB |
940 | case 'K': /* Zero superblock */ |
941 | rv |= Kill(dv->devname, force); continue; | |
942 | case 'Q': | |
943 | rv |= Query(dv->devname); continue; | |
944 | } | |
dd0781e5 | 945 | mdfd = open_mddev(dv->devname, 0); |
e0d19036 NB |
946 | if (mdfd>=0) |
947 | switch(dv->disposition) { | |
948 | case 'R': | |
949 | rv |= Manage_runstop(dv->devname, mdfd, 1); break; | |
950 | case 'S': | |
951 | rv |= Manage_runstop(dv->devname, mdfd, -1); break; | |
952 | case 'o': | |
953 | rv |= Manage_ro(dv->devname, mdfd, 1); break; | |
954 | case 'w': | |
955 | rv |= Manage_ro(dv->devname, mdfd, -1); break; | |
956 | } | |
957 | } | |
cd29a5c8 | 958 | } |
9a9dab36 | 959 | break; |
e0d19036 | 960 | case MONITOR: |
e0d19036 NB |
961 | if (!devlist && !scan) { |
962 | fprintf(stderr, Name ": Cannot monitor: need --scan or at least one device\n"); | |
963 | rv = 1; | |
964 | break; | |
965 | } | |
d013a55e | 966 | rv= Monitor(devlist, mailaddr, program, |
98c6faba | 967 | delay?delay:60, daemonise, scan, oneshot, configfile, test); |
9a9dab36 | 968 | break; |
dd0781e5 NB |
969 | |
970 | case GROW: | |
971 | if (devs_found > 1) { | |
e5329c37 NB |
972 | |
973 | /* must be '-a'. */ | |
974 | if (size >= 0 || raiddisks) { | |
975 | fprintf(stderr, Name ": --size, --raiddisks, and --add are exclusing in --grow mode\n"); | |
976 | rv = 1; | |
977 | break; | |
978 | } | |
979 | for (dv=devlist->next; dv ; dv=dv->next) { | |
980 | rv = Grow_Add_device(devlist->devname, mdfd, dv->devname); | |
981 | if (rv) | |
982 | break; | |
983 | } | |
984 | } else if (size >= 0 && raiddisks) { | |
dd0781e5 NB |
985 | fprintf(stderr, Name ": can only grow size OR raiddisks, not both\n"); |
986 | rv = 1; | |
987 | break; | |
e5329c37 NB |
988 | } else |
989 | rv = Manage_resize(devlist->devname, mdfd, size, raiddisks); | |
dd0781e5 | 990 | break; |
64c4757e | 991 | } |
52826846 | 992 | exit(rv); |
64c4757e | 993 | } |