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64c4757e | 1 | /* |
9a9dab36 | 2 | * mdadm - manage Linux "md" devices aka RAID arrays. |
64c4757e | 3 | * |
e736b623 | 4 | * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de> |
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 | |
e736b623 | 22 | * Email: <neilb@suse.de> |
64c4757e NB |
23 | */ |
24 | ||
9a9dab36 | 25 | #include "mdadm.h" |
82b27616 | 26 | #include "dlink.h" |
ff7f2ebb | 27 | #include <dirent.h> |
82b27616 | 28 | #include <glob.h> |
52826846 | 29 | #include <fnmatch.h> |
dd0781e5 | 30 | #include <ctype.h> |
5bbb4842 NB |
31 | #include <pwd.h> |
32 | #include <grp.h> | |
52826846 | 33 | |
64c4757e NB |
34 | /* |
35 | * Read the config file | |
36 | * | |
37 | * conf_get_uuids gets a list of devicename+uuid pairs | |
38 | * conf_get_devs gets device names after expanding wildcards | |
39 | * | |
40 | * Each keeps the returned list and frees it when asked to make | |
41 | * a new list. | |
42 | * | |
82b27616 NB |
43 | * The format of the config file needs to be fairly extensible. |
44 | * Now, arrays only have names and uuids and devices merely are. | |
45 | * But later arrays might want names, and devices might want superblock | |
46 | * versions, and who knows what else. | |
47 | * I like free format, abhore backslash line continuation, adore | |
48 | * indentation for structure and am ok about # comments. | |
49 | * | |
50 | * So, each line that isn't blank or a #comment must either start | |
51 | * with a key word, and not be indented, or must start with a | |
52 | * non-key-word and must be indented. | |
53 | * | |
31015d57 | 54 | * Keywords are DEVICE and ARRAY ... and several others. |
82b27616 NB |
55 | * DEV{ICE} introduces some devices that might contain raid components. |
56 | * e.g. | |
57 | * DEV style=0 /dev/sda* /dev/hd* | |
58 | * DEV style=1 /dev/sd[b-f]* | |
59 | * ARR{AY} describes an array giving md device and attributes like uuid=whatever | |
60 | * e.g. | |
61 | * ARRAY /dev/md0 uuid=whatever name=something | |
62 | * Spaces separate words on each line. Quoting, with "" or '' protects them, | |
63 | * but may not wrap over lines | |
64 | * | |
64c4757e NB |
65 | */ |
66 | ||
11a3e71d NB |
67 | #ifndef CONFFILE |
68 | #define CONFFILE "/etc/mdadm.conf" | |
69 | #endif | |
ce4fafd6 NB |
70 | #ifndef CONFFILE2 |
71 | /* for Debian compatibility .... */ | |
72 | #define CONFFILE2 "/etc/mdadm/mdadm.conf" | |
73 | #endif | |
11a3e71d | 74 | char DefaultConfFile[] = CONFFILE; |
ce4fafd6 | 75 | char DefaultAltConfFile[] = CONFFILE2; |
64c4757e | 76 | |
31015d57 | 77 | enum linetype { Devices, Array, Mailaddr, Mailfrom, Program, CreateDev, |
5527fc74 | 78 | Homehost, AutoMode, Policy, PartPolicy, LTEnd }; |
8fe9db0f NB |
79 | char *keywords[] = { |
80 | [Devices] = "devices", | |
81 | [Array] = "array", | |
82 | [Mailaddr] = "mailaddr", | |
83 | [Mailfrom] = "mailfrom", | |
84 | [Program] = "program", | |
8382f19b | 85 | [CreateDev]= "create", |
8fe9db0f | 86 | [Homehost] = "homehost", |
31015d57 | 87 | [AutoMode] = "auto", |
5527fc74 N |
88 | [Policy] = "policy", |
89 | [PartPolicy]="part-policy", | |
8fe9db0f NB |
90 | [LTEnd] = NULL |
91 | }; | |
82b27616 NB |
92 | |
93 | /* | |
94 | * match_keyword returns an index into the keywords array, or -1 for no match | |
95 | * case is ignored, and at least three characters must be given | |
96 | */ | |
97 | ||
98 | int match_keyword(char *word) | |
99 | { | |
52826846 NB |
100 | int len = strlen(word); |
101 | int n; | |
aba69144 | 102 | |
52826846 NB |
103 | if (len < 3) return -1; |
104 | for (n=0; keywords[n]; n++) { | |
105 | if (strncasecmp(word, keywords[n], len)==0) | |
106 | return n; | |
107 | } | |
108 | return -1; | |
82b27616 NB |
109 | } |
110 | ||
82b27616 NB |
111 | /* |
112 | * conf_line reads one logical line from the conffile. | |
113 | * It skips comments and continues until it finds a line that starts | |
114 | * with a non blank/comment. This character is pushed back for the next call | |
115 | * A doubly linked list of words is returned. | |
116 | * the first word will be a keyword. Other words will have had quotes removed. | |
117 | */ | |
118 | ||
119 | char *conf_line(FILE *file) | |
120 | { | |
52826846 NB |
121 | char *w; |
122 | char *list; | |
82b27616 | 123 | |
52826846 NB |
124 | w = conf_word(file, 1); |
125 | if (w == NULL) return NULL; | |
82b27616 | 126 | |
52826846 | 127 | list = dl_strdup(w); |
82b27616 | 128 | free(w); |
52826846 NB |
129 | dl_init(list); |
130 | ||
131 | while ((w = conf_word(file,0))){ | |
132 | char *w2 = dl_strdup(w); | |
133 | free(w); | |
134 | dl_add(list, w2); | |
135 | } | |
82b27616 | 136 | /* printf("got a line\n");*/ |
52826846 | 137 | return list; |
82b27616 NB |
138 | } |
139 | ||
140 | void free_line(char *line) | |
141 | { | |
52826846 NB |
142 | char *w; |
143 | for (w=dl_next(line); w != line; w=dl_next(line)) { | |
144 | dl_del(w); | |
145 | dl_free(w); | |
146 | } | |
147 | dl_free(line); | |
82b27616 NB |
148 | } |
149 | ||
150 | ||
151 | struct conf_dev { | |
5d500228 N |
152 | struct conf_dev *next; |
153 | char *name; | |
82b27616 NB |
154 | } *cdevlist = NULL; |
155 | ||
a655e550 | 156 | struct mddev_dev *load_partitions(void) |
5787fa49 NB |
157 | { |
158 | FILE *f = fopen("/proc/partitions", "r"); | |
159 | char buf[1024]; | |
a655e550 | 160 | struct mddev_dev *rv = NULL; |
5787fa49 | 161 | if (f == NULL) { |
e7b84f9d | 162 | pr_err("cannot open /proc/partitions\n"); |
057bd352 | 163 | return NULL; |
5787fa49 NB |
164 | } |
165 | while (fgets(buf, 1024, f)) { | |
166 | int major, minor; | |
98c6faba | 167 | char *name, *mp; |
a655e550 | 168 | struct mddev_dev *d; |
8b0dabea | 169 | |
5787fa49 NB |
170 | buf[1023] = '\0'; |
171 | if (buf[0] != ' ') | |
172 | continue; | |
98c6faba | 173 | major = strtoul(buf, &mp, 10); |
aba69144 | 174 | if (mp == buf || *mp != ' ') |
5787fa49 | 175 | continue; |
98c6faba NB |
176 | minor = strtoul(mp, NULL, 10); |
177 | ||
16c6fa80 | 178 | name = map_dev(major, minor, 1); |
e81cdd9f NB |
179 | if (!name) |
180 | continue; | |
503975b9 N |
181 | d = xmalloc(sizeof(*d)); |
182 | d->devname = xstrdup(name); | |
8b0dabea | 183 | d->next = rv; |
da6b5ca9 | 184 | d->used = 0; |
8b0dabea | 185 | rv = d; |
5787fa49 | 186 | } |
dd0781e5 | 187 | fclose(f); |
057bd352 | 188 | return rv; |
5787fa49 | 189 | } |
82b27616 | 190 | |
a655e550 | 191 | struct mddev_dev *load_containers(void) |
f64165f7 DW |
192 | { |
193 | struct mdstat_ent *mdstat = mdstat_read(1, 0); | |
194 | struct mdstat_ent *ent; | |
a655e550 N |
195 | struct mddev_dev *d; |
196 | struct mddev_dev *rv = NULL; | |
f64165f7 DW |
197 | |
198 | if (!mdstat) | |
199 | return NULL; | |
200 | ||
201 | for (ent = mdstat; ent; ent = ent->next) | |
202 | if (ent->metadata_version && | |
203 | strncmp(ent->metadata_version, "external:", 9) == 0 && | |
204 | !is_subarray(&ent->metadata_version[9])) { | |
503975b9 | 205 | d = xmalloc(sizeof(*d)); |
f64165f7 DW |
206 | if (asprintf(&d->devname, "/dev/%s", ent->dev) < 0) { |
207 | free(d); | |
208 | continue; | |
209 | } | |
210 | d->next = rv; | |
211 | d->used = 0; | |
212 | rv = d; | |
213 | } | |
214 | free_mdstat(mdstat); | |
215 | ||
216 | return rv; | |
217 | } | |
218 | ||
5bbb4842 | 219 | struct createinfo createinfo = { |
75723446 | 220 | .autof = 2, /* by default, create devices with standard names */ |
38098016 | 221 | .symlinks = 1, |
5bbb4842 NB |
222 | #ifdef DEBIAN |
223 | .gid = 6, /* disk */ | |
224 | .mode = 0660, | |
225 | #else | |
226 | .mode = 0600, | |
227 | #endif | |
228 | }; | |
229 | ||
f1ae21c4 | 230 | int parse_auto(char *str, char *msg, int config) |
5bbb4842 NB |
231 | { |
232 | int autof; | |
233 | if (str == NULL || *str == 0) | |
f1ae21c4 | 234 | autof = 2; |
5bbb4842 | 235 | else if (strcasecmp(str,"no")==0) |
f1ae21c4 | 236 | autof = 1; |
5bbb4842 | 237 | else if (strcasecmp(str,"yes")==0) |
f1ae21c4 | 238 | autof = 2; |
5bbb4842 | 239 | else if (strcasecmp(str,"md")==0) |
f1ae21c4 | 240 | autof = config?5:3; |
5bbb4842 NB |
241 | else { |
242 | /* There might be digits, and maybe a hypen, at the end */ | |
243 | char *e = str + strlen(str); | |
244 | int num = 4; | |
245 | int len; | |
246 | while (e > str && isdigit(e[-1])) | |
247 | e--; | |
248 | if (*e) { | |
249 | num = atoi(e); | |
250 | if (num <= 0) num = 1; | |
251 | } | |
252 | if (e > str && e[-1] == '-') | |
253 | e--; | |
254 | len = e - str; | |
f1ae21c4 NB |
255 | if ((len == 2 && strncasecmp(str,"md",2)==0)) { |
256 | autof = config ? 5 : 3; | |
6ba83b5f NB |
257 | } else if ((len == 3 && strncasecmp(str,"yes",3)==0)) { |
258 | autof = 2; | |
f1ae21c4 NB |
259 | } else if ((len == 3 && strncasecmp(str,"mdp",3)==0)) { |
260 | autof = config ? 6 : 4; | |
261 | } else if ((len == 1 && strncasecmp(str,"p",1)==0) || | |
262 | (len >= 4 && strncasecmp(str,"part",4)==0)) { | |
263 | autof = 6; | |
264 | } else { | |
e7b84f9d | 265 | pr_err("%s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" |
5bbb4842 NB |
266 | " optionally followed by a number.\n", |
267 | msg, str); | |
268 | exit(2); | |
269 | } | |
f1ae21c4 | 270 | autof |= num << 3; |
5bbb4842 NB |
271 | } |
272 | return autof; | |
273 | } | |
f1ae21c4 | 274 | |
5bbb4842 NB |
275 | static void createline(char *line) |
276 | { | |
277 | char *w; | |
278 | char *ep; | |
279 | ||
280 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
281 | if (strncasecmp(w, "auto=", 5) == 0) | |
f1ae21c4 | 282 | createinfo.autof = parse_auto(w+5, "auto=", 1); |
5bbb4842 NB |
283 | else if (strncasecmp(w, "owner=", 6) == 0) { |
284 | if (w[6] == 0) { | |
e7b84f9d | 285 | pr_err("missing owner name\n"); |
5bbb4842 NB |
286 | continue; |
287 | } | |
288 | createinfo.uid = strtoul(w+6, &ep, 10); | |
289 | if (*ep != 0) { | |
5bbb4842 NB |
290 | struct passwd *pw; |
291 | /* must be a name */ | |
292 | pw = getpwnam(w+6); | |
293 | if (pw) | |
294 | createinfo.uid = pw->pw_uid; | |
295 | else | |
e7b84f9d | 296 | pr_err("CREATE user %s not found\n", w+6); |
5bbb4842 NB |
297 | } |
298 | } else if (strncasecmp(w, "group=", 6) == 0) { | |
299 | if (w[6] == 0) { | |
e7b84f9d | 300 | pr_err("missing group name\n"); |
5bbb4842 NB |
301 | continue; |
302 | } | |
303 | createinfo.gid = strtoul(w+6, &ep, 10); | |
304 | if (*ep != 0) { | |
5bbb4842 NB |
305 | struct group *gr; |
306 | /* must be a name */ | |
307 | gr = getgrnam(w+6); | |
308 | if (gr) | |
309 | createinfo.gid = gr->gr_gid; | |
310 | else | |
e7b84f9d | 311 | pr_err("CREATE group %s not found\n", w+6); |
5bbb4842 NB |
312 | } |
313 | } else if (strncasecmp(w, "mode=", 5) == 0) { | |
314 | if (w[5] == 0) { | |
e7b84f9d | 315 | pr_err("missing CREATE mode\n"); |
5bbb4842 NB |
316 | continue; |
317 | } | |
318 | createinfo.mode = strtoul(w+5, &ep, 8); | |
319 | if (*ep != 0) { | |
320 | createinfo.mode = 0600; | |
e7b84f9d | 321 | pr_err("unrecognised CREATE mode %s\n", |
5bbb4842 NB |
322 | w+5); |
323 | } | |
058574b1 NB |
324 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
325 | /* style of metadata to use by default */ | |
326 | int i; | |
327 | for (i=0; superlist[i] && !createinfo.supertype; i++) | |
328 | createinfo.supertype = | |
329 | superlist[i]->match_metadata_desc(w+9); | |
330 | if (!createinfo.supertype) | |
e7b84f9d | 331 | pr_err("metadata format %s unknown, ignoring\n", |
058574b1 | 332 | w+9); |
38098016 NB |
333 | } else if (strncasecmp(w, "symlinks=yes", 12) == 0) |
334 | createinfo.symlinks = 1; | |
335 | else if (strncasecmp(w, "symlinks=no", 11) == 0) | |
336 | createinfo.symlinks = 0; | |
337 | else { | |
e7b84f9d | 338 | pr_err("unrecognised word on CREATE line: %s\n", |
5bbb4842 NB |
339 | w); |
340 | } | |
341 | } | |
342 | } | |
82b27616 | 343 | |
aba69144 | 344 | void devline(char *line) |
82b27616 | 345 | { |
52826846 NB |
346 | char *w; |
347 | struct conf_dev *cd; | |
348 | ||
349 | for (w=dl_next(line); w != line; w=dl_next(w)) { | |
f64165f7 DW |
350 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0 || |
351 | strcasecmp(w, "containers") == 0) { | |
503975b9 N |
352 | cd = xmalloc(sizeof(*cd)); |
353 | cd->name = xstrdup(w); | |
52826846 NB |
354 | cd->next = cdevlist; |
355 | cdevlist = cd; | |
356 | } else { | |
e7b84f9d | 357 | pr_err("unreconised word on DEVICE line: %s\n", |
52826846 NB |
358 | w); |
359 | } | |
82b27616 | 360 | } |
82b27616 NB |
361 | } |
362 | ||
fa56eddb N |
363 | struct mddev_ident *mddevlist = NULL; |
364 | struct mddev_ident **mddevlp = &mddevlist; | |
82b27616 | 365 | |
db2d001c N |
366 | static int is_number(char *w) |
367 | { | |
368 | /* check if there are 1 or more digits and nothing else */ | |
369 | int digits = 0; | |
370 | while (*w && isdigit(*w)) { | |
371 | digits++; | |
372 | w++; | |
373 | } | |
374 | return (digits && ! *w); | |
375 | } | |
376 | ||
82b27616 NB |
377 | void arrayline(char *line) |
378 | { | |
52826846 NB |
379 | char *w; |
380 | ||
fa56eddb N |
381 | struct mddev_ident mis; |
382 | struct mddev_ident *mi; | |
52826846 NB |
383 | |
384 | mis.uuid_set = 0; | |
98c6faba NB |
385 | mis.super_minor = UnSet; |
386 | mis.level = UnSet; | |
387 | mis.raid_disks = UnSet; | |
4ccdb956 | 388 | mis.spare_disks = 0; |
52826846 NB |
389 | mis.devices = NULL; |
390 | mis.devname = NULL; | |
e0d19036 | 391 | mis.spare_group = NULL; |
dd0781e5 | 392 | mis.autof = 0; |
92919398 | 393 | mis.next = NULL; |
f277ce36 NB |
394 | mis.st = NULL; |
395 | mis.bitmap_fd = -1; | |
7ef02d01 | 396 | mis.bitmap_file = NULL; |
947fd4dd | 397 | mis.name[0] = 0; |
71d60c48 DW |
398 | mis.container = NULL; |
399 | mis.member = NULL; | |
52826846 NB |
400 | |
401 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
db2d001c N |
402 | if (w[0] == '/' || strchr(w, '=') == NULL) { |
403 | /* This names the device, or is '<ignore>'. | |
404 | * The rules match those in create_mddev. | |
405 | * 'w' must be: | |
406 | * /dev/md/{anything} | |
407 | * /dev/mdNN | |
408 | * /dev/md_dNN | |
409 | * <ignore> | |
410 | * or anything that doesn't start '/' or '<' | |
411 | */ | |
412 | if (strcasecmp(w, "<ignore>") == 0 || | |
413 | strncmp(w, "/dev/md/", 8) == 0 || | |
414 | (w[0] != '/' && w[0] != '<') || | |
415 | (strncmp(w, "/dev/md", 7) == 0 && | |
416 | is_number(w+7)) || | |
417 | (strncmp(w, "/dev/md_d", 9) == 0 && | |
418 | is_number(w+9)) | |
419 | ) { | |
420 | /* This is acceptable */; | |
421 | if (mis.devname) | |
e7b84f9d | 422 | pr_err("only give one " |
db2d001c N |
423 | "device per ARRAY line: %s and %s\n", |
424 | mis.devname, w); | |
425 | else | |
426 | mis.devname = w; | |
427 | }else { | |
e7b84f9d | 428 | pr_err("%s is an invalid name for " |
db2d001c N |
429 | "an md device - ignored.\n", w); |
430 | } | |
52826846 NB |
431 | } else if (strncasecmp(w, "uuid=", 5)==0 ) { |
432 | if (mis.uuid_set) | |
e7b84f9d | 433 | pr_err("only specify uuid once, %s ignored.\n", |
52826846 NB |
434 | w); |
435 | else { | |
436 | if (parse_uuid(w+5, mis.uuid)) | |
437 | mis.uuid_set = 1; | |
438 | else | |
e7b84f9d | 439 | pr_err("bad uuid: %s\n", w); |
52826846 NB |
440 | } |
441 | } else if (strncasecmp(w, "super-minor=", 12)==0 ) { | |
f277ce36 | 442 | if (mis.super_minor != UnSet) |
e7b84f9d | 443 | pr_err("only specify super-minor once, %s ignored.\n", |
52826846 NB |
444 | w); |
445 | else { | |
446 | char *endptr; | |
f21e18ca N |
447 | int minor = strtol(w+12, &endptr, 10); |
448 | ||
449 | if (w[12]==0 || endptr[0]!=0 || minor < 0) | |
e7b84f9d | 450 | pr_err("invalid super-minor number: %s\n", |
52826846 | 451 | w); |
f21e18ca N |
452 | else |
453 | mis.super_minor = minor; | |
52826846 | 454 | } |
947fd4dd NB |
455 | } else if (strncasecmp(w, "name=", 5)==0) { |
456 | if (mis.name[0]) | |
e7b84f9d | 457 | pr_err("only specify name once, %s ignored.\n", |
947fd4dd NB |
458 | w); |
459 | else if (strlen(w+5) > 32) | |
e7b84f9d | 460 | pr_err("name too long, ignoring %s\n", w); |
947fd4dd NB |
461 | else |
462 | strcpy(mis.name, w+5); | |
463 | ||
7ef02d01 NB |
464 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { |
465 | if (mis.bitmap_file) | |
e7b84f9d | 466 | pr_err("only specify bitmap file once. %s ignored\n", |
7ef02d01 NB |
467 | w); |
468 | else | |
503975b9 | 469 | mis.bitmap_file = xstrdup(w+7); |
7ef02d01 | 470 | |
52826846 NB |
471 | } else if (strncasecmp(w, "devices=", 8 ) == 0 ) { |
472 | if (mis.devices) | |
e7b84f9d | 473 | pr_err("only specify devices once (use a comma separated list). %s ignored\n", |
52826846 NB |
474 | w); |
475 | else | |
503975b9 | 476 | mis.devices = xstrdup(w+8); |
52826846 NB |
477 | } else if (strncasecmp(w, "spare-group=", 12) == 0 ) { |
478 | if (mis.spare_group) | |
e7b84f9d | 479 | pr_err("only specify one spare group per array. %s ignored.\n", |
52826846 NB |
480 | w); |
481 | else | |
503975b9 | 482 | mis.spare_group = xstrdup(w+12); |
cd29a5c8 NB |
483 | } else if (strncasecmp(w, "level=", 6) == 0 ) { |
484 | /* this is mainly for compatability with --brief output */ | |
485 | mis.level = map_name(pers, w+6); | |
486 | } else if (strncasecmp(w, "disks=", 6) == 0 ) { | |
487 | /* again, for compat */ | |
feb716e9 | 488 | mis.raid_disks = atoi(w+6); |
b83d95f3 NB |
489 | } else if (strncasecmp(w, "num-devices=", 12) == 0 ) { |
490 | /* again, for compat */ | |
feb716e9 NB |
491 | mis.raid_disks = atoi(w+12); |
492 | } else if (strncasecmp(w, "spares=", 7) == 0 ) { | |
493 | /* for warning if not all spares present */ | |
494 | mis.spare_disks = atoi(w+7); | |
f9ce90ba NB |
495 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
496 | /* style of metadata on the devices. */ | |
497 | int i; | |
aba69144 | 498 | |
82d9eba6 NB |
499 | for(i=0; superlist[i] && !mis.st; i++) |
500 | mis.st = superlist[i]->match_metadata_desc(w+9); | |
501 | ||
502 | if (!mis.st) | |
e7b84f9d | 503 | pr_err("metadata format %s unknown, ignored.\n", w+9); |
dd0781e5 NB |
504 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { |
505 | /* whether to create device special files as needed */ | |
f1ae21c4 | 506 | mis.autof = parse_auto(w+5, "auto type", 0); |
dbb44303 N |
507 | } else if (strncasecmp(w, "member=", 7) == 0) { |
508 | /* subarray within a container */ | |
503975b9 | 509 | mis.member = xstrdup(w+7); |
dbb44303 | 510 | } else if (strncasecmp(w, "container=", 10) == 0) { |
1771a6e2 N |
511 | /* the container holding this subarray. Either a device name |
512 | * or a uuid */ | |
503975b9 | 513 | mis.container = xstrdup(w+10); |
52826846 | 514 | } else { |
e7b84f9d | 515 | pr_err("unrecognised word on ARRAY line: %s\n", |
52826846 NB |
516 | w); |
517 | } | |
518 | } | |
b1b12d58 N |
519 | if (mis.uuid_set == 0 && mis.devices == NULL && |
520 | mis.super_minor == UnSet && mis.name[0] == 0 && | |
aa7c284c | 521 | (mis.container == NULL || mis.member == NULL)) |
e7b84f9d | 522 | pr_err("ARRAY line %s has no identity information.\n", mis.devname); |
52826846 | 523 | else { |
503975b9 | 524 | mi = xmalloc(sizeof(*mi)); |
52826846 | 525 | *mi = mis; |
503975b9 | 526 | mi->devname = mis.devname ? xstrdup(mis.devname) : NULL; |
52826846 NB |
527 | mi->next = NULL; |
528 | *mddevlp = mi; | |
529 | mddevlp = &mi->next; | |
82b27616 | 530 | } |
82b27616 | 531 | } |
e0d19036 NB |
532 | |
533 | static char *alert_email = NULL; | |
534 | void mailline(char *line) | |
535 | { | |
536 | char *w; | |
537 | ||
538 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
539 | if (alert_email == NULL) | |
503975b9 | 540 | alert_email = xstrdup(w); |
e0d19036 | 541 | else |
e7b84f9d | 542 | pr_err("excess address on MAIL line: %s - ignored\n", |
e0d19036 NB |
543 | w); |
544 | } | |
545 | } | |
546 | ||
4948b8f7 NB |
547 | static char *alert_mail_from = NULL; |
548 | void mailfromline(char *line) | |
549 | { | |
550 | char *w; | |
551 | ||
552 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
553 | if (alert_mail_from == NULL) | |
503975b9 | 554 | alert_mail_from = xstrdup(w); |
4948b8f7 | 555 | else { |
3d2c4fc7 DW |
556 | char *t = NULL; |
557 | ||
78fbcc10 | 558 | if (xasprintf(&t, "%s %s", alert_mail_from, w) > 0) { |
3d2c4fc7 DW |
559 | free(alert_mail_from); |
560 | alert_mail_from = t; | |
561 | } | |
4948b8f7 NB |
562 | } |
563 | } | |
564 | } | |
565 | ||
e0d19036 NB |
566 | |
567 | static char *alert_program = NULL; | |
568 | void programline(char *line) | |
569 | { | |
570 | char *w; | |
571 | ||
572 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
573 | if (alert_program == NULL) | |
503975b9 | 574 | alert_program = xstrdup(w); |
e0d19036 | 575 | else |
e7b84f9d | 576 | pr_err("excess program on PROGRAM line: %s - ignored\n", |
e0d19036 NB |
577 | w); |
578 | } | |
579 | } | |
580 | ||
997aed5d | 581 | static char *home_host = NULL; |
0ac91628 | 582 | static int require_homehost = 1; |
997aed5d NB |
583 | void homehostline(char *line) |
584 | { | |
585 | char *w; | |
586 | ||
587 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
0ac91628 N |
588 | if (strcasecmp(w, "<ignore>")==0) |
589 | require_homehost = 0; | |
0f23aa88 N |
590 | else if (home_host == NULL) { |
591 | if (strcasecmp(w, "<none>")==0) | |
503975b9 | 592 | home_host = xstrdup(""); |
0f23aa88 | 593 | else |
503975b9 | 594 | home_host = xstrdup(w); |
0f23aa88 | 595 | }else |
e7b84f9d | 596 | pr_err("excess host name on HOMEHOST line: %s - ignored\n", |
997aed5d NB |
597 | w); |
598 | } | |
599 | } | |
600 | ||
4e8d9f0a N |
601 | char auto_yes[] = "yes"; |
602 | char auto_no[] = "no"; | |
603 | char auto_homehost[] = "homehost"; | |
604 | ||
605 | static int auto_seen = 0; | |
31015d57 N |
606 | void autoline(char *line) |
607 | { | |
4d0b563b | 608 | char *w; |
4e8d9f0a N |
609 | char *seen; |
610 | int super_cnt; | |
611 | char *dflt = auto_yes; | |
612 | int homehost = 0; | |
613 | int i; | |
4d0b563b | 614 | |
4e8d9f0a | 615 | if (auto_seen) { |
e7b84f9d | 616 | pr_err("AUTO line may only be give once." |
31015d57 N |
617 | " Subsequent lines ignored\n"); |
618 | return; | |
619 | } | |
4e8d9f0a N |
620 | /* Parse the 'auto' line creating policy statements for the 'auto' policy. |
621 | * | |
622 | * The default is 'yes' but the 'auto' line might over-ride that. | |
623 | * Words in the line are processed in order with the first | |
624 | * match winning. | |
625 | * word can be: | |
626 | * +version - that version can be assembled | |
627 | * -version - that version cannot be auto-assembled | |
628 | * yes or +all - any other version can be assembled | |
629 | * no or -all - no other version can be assembled. | |
630 | * homehost - any array associated by 'homehost' to this | |
631 | * host can be assembled. | |
632 | * | |
633 | * Thus: | |
634 | * +ddf -0.90 homehost -all | |
635 | * will auto-assemble any ddf array, no 0.90 array, and | |
636 | * any other array (imsm, 1.x) if and only if it is identified | |
637 | * as belonging to this host. | |
638 | * | |
639 | * We translate that to policy by creating 'auto=yes' when we see | |
640 | * a '+version' line, 'auto=no' if we see '-version' before 'homehost', | |
641 | * or 'auto=homehost' if we see '-version' after 'homehost'. | |
b10c663e | 642 | * When we see yes, no, +all or -all we stop and any version that hasn't |
4e8d9f0a N |
643 | * been seen gets an appropriate auto= entry. |
644 | */ | |
4d0b563b | 645 | |
4e8d9f0a N |
646 | for (super_cnt = 0; superlist[super_cnt]; super_cnt++) |
647 | ; | |
503975b9 | 648 | seen = xcalloc(super_cnt, 1); |
4d0b563b | 649 | |
4e8d9f0a N |
650 | for (w = dl_next(line); w != line ; w = dl_next(w)) { |
651 | char *val; | |
652 | ||
653 | if (strcasecmp(w, "yes") == 0) { | |
654 | dflt = auto_yes; | |
655 | break; | |
656 | } | |
657 | if (strcasecmp(w, "no") == 0) { | |
658 | if (homehost) | |
659 | dflt = auto_homehost; | |
660 | else | |
661 | dflt = auto_no; | |
662 | break; | |
663 | } | |
664 | if (strcasecmp(w, "homehost") == 0) { | |
665 | homehost = 1; | |
666 | continue; | |
667 | } | |
668 | if (w[0] == '+') | |
669 | val = auto_yes; | |
670 | else if (w[0] == '-') { | |
671 | if (homehost) | |
672 | val = auto_homehost; | |
673 | else | |
674 | val = auto_no; | |
675 | } else | |
676 | continue; | |
677 | ||
678 | if (strcasecmp(w+1, "all") == 0) { | |
679 | dflt = val; | |
680 | break; | |
681 | } | |
682 | for (i = 0; superlist[i]; i++) { | |
683 | const char *version = superlist[i]->name; | |
684 | if (strcasecmp(w+1, version) == 0) | |
685 | break; | |
686 | /* 1 matches 1.x, 0 matches 0.90 */ | |
687 | if (version[1] == '.' && | |
688 | strlen(w+1) == 1 && | |
689 | w[1] == version[0]) | |
690 | break; | |
691 | /* 1.anything matches 1.x */ | |
692 | if (strcmp(version, "1.x") == 0 && | |
693 | strncmp(w+1, "1.", 2) == 0) | |
694 | break; | |
695 | } | |
696 | if (superlist[i] == NULL) | |
697 | /* ignore this word */ | |
698 | continue; | |
699 | if (seen[i]) | |
700 | /* already know about this metadata */ | |
701 | continue; | |
702 | policy_add(rule_policy, pol_auto, val, pol_metadata, superlist[i]->name, NULL); | |
703 | seen[i] = 1; | |
4d0b563b | 704 | } |
4e8d9f0a N |
705 | for (i = 0; i < super_cnt; i++) |
706 | if (!seen[i]) | |
707 | policy_add(rule_policy, pol_auto, dflt, pol_metadata, superlist[i]->name, NULL); | |
42de2ac2 TJ |
708 | |
709 | free(seen); | |
31015d57 | 710 | } |
e0d19036 | 711 | |
82b27616 NB |
712 | int loaded = 0; |
713 | ||
8aec876d NB |
714 | static char *conffile = NULL; |
715 | void set_conffile(char *file) | |
716 | { | |
717 | conffile = file; | |
718 | } | |
719 | ||
720 | void load_conffile(void) | |
82b27616 | 721 | { |
52826846 NB |
722 | FILE *f; |
723 | char *line; | |
724 | ||
725 | if (loaded) return; | |
726 | if (conffile == NULL) | |
727 | conffile = DefaultConfFile; | |
728 | ||
d013a55e NB |
729 | if (strcmp(conffile, "none") == 0) { |
730 | loaded = 1; | |
731 | return; | |
732 | } | |
5787fa49 | 733 | if (strcmp(conffile, "partitions")==0) { |
b5687415 NB |
734 | char *list = dl_strdup("DEV"); |
735 | dl_init(list); | |
736 | dl_add(list, dl_strdup("partitions")); | |
737 | devline(list); | |
738 | free_line(list); | |
d013a55e | 739 | loaded = 1; |
5787fa49 NB |
740 | return; |
741 | } | |
52826846 | 742 | f = fopen(conffile, "r"); |
ce4fafd6 NB |
743 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. |
744 | * To allow Debian users to compile from clean source and still | |
745 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
746 | * if /etc/mdadm.conf doesn't exist | |
747 | */ | |
748 | if (f == NULL && | |
749 | conffile == DefaultConfFile) { | |
750 | f = fopen(DefaultAltConfFile, "r"); | |
751 | if (f) | |
752 | conffile = DefaultAltConfFile; | |
753 | } | |
754 | if (f == NULL) | |
52826846 NB |
755 | return; |
756 | ||
757 | loaded = 1; | |
758 | while ((line=conf_line(f))) { | |
759 | switch(match_keyword(line)) { | |
8fe9db0f | 760 | case Devices: |
52826846 NB |
761 | devline(line); |
762 | break; | |
8fe9db0f | 763 | case Array: |
52826846 NB |
764 | arrayline(line); |
765 | break; | |
8fe9db0f | 766 | case Mailaddr: |
e0d19036 NB |
767 | mailline(line); |
768 | break; | |
8fe9db0f | 769 | case Mailfrom: |
4948b8f7 NB |
770 | mailfromline(line); |
771 | break; | |
8fe9db0f NB |
772 | case Program: |
773 | programline(line); | |
774 | break; | |
775 | case CreateDev: | |
5bbb4842 NB |
776 | createline(line); |
777 | break; | |
997aed5d NB |
778 | case Homehost: |
779 | homehostline(line); | |
780 | break; | |
31015d57 N |
781 | case AutoMode: |
782 | autoline(line); | |
783 | break; | |
5527fc74 N |
784 | case Policy: |
785 | policyline(line, rule_policy); | |
786 | break; | |
787 | case PartPolicy: | |
788 | policyline(line, rule_part); | |
789 | break; | |
52826846 | 790 | default: |
e7b84f9d | 791 | pr_err("Unknown keyword %s\n", line); |
52826846 NB |
792 | } |
793 | free_line(line); | |
82b27616 | 794 | } |
aba69144 | 795 | |
dd0781e5 | 796 | fclose(f); |
82b27616 NB |
797 | |
798 | /* printf("got file\n"); */ | |
799 | } | |
800 | ||
8aec876d | 801 | char *conf_get_mailaddr(void) |
e0d19036 | 802 | { |
8aec876d | 803 | load_conffile(); |
e0d19036 NB |
804 | return alert_email; |
805 | } | |
806 | ||
8aec876d | 807 | char *conf_get_mailfrom(void) |
4948b8f7 | 808 | { |
8aec876d | 809 | load_conffile(); |
4948b8f7 NB |
810 | return alert_mail_from; |
811 | } | |
812 | ||
8aec876d | 813 | char *conf_get_program(void) |
e0d19036 | 814 | { |
8aec876d | 815 | load_conffile(); |
e0d19036 NB |
816 | return alert_program; |
817 | } | |
818 | ||
0ac91628 | 819 | char *conf_get_homehost(int *require_homehostp) |
997aed5d | 820 | { |
8aec876d | 821 | load_conffile(); |
0ac91628 N |
822 | if (require_homehostp) |
823 | *require_homehostp = require_homehost; | |
997aed5d NB |
824 | return home_host; |
825 | } | |
826 | ||
8aec876d | 827 | struct createinfo *conf_get_create_info(void) |
5bbb4842 | 828 | { |
8aec876d | 829 | load_conffile(); |
5bbb4842 NB |
830 | return &createinfo; |
831 | } | |
82b27616 | 832 | |
fa56eddb | 833 | struct mddev_ident *conf_get_ident(char *dev) |
64c4757e | 834 | { |
fa56eddb | 835 | struct mddev_ident *rv; |
8aec876d | 836 | load_conffile(); |
52826846 | 837 | rv = mddevlist; |
fe056d1f | 838 | while (dev && rv && (rv->devname == NULL |
5c4c9ab1 | 839 | || !devname_matches(dev, rv->devname))) |
52826846 NB |
840 | rv = rv->next; |
841 | return rv; | |
64c4757e NB |
842 | } |
843 | ||
a655e550 | 844 | static void append_dlist(struct mddev_dev **dlp, struct mddev_dev *list) |
f64165f7 DW |
845 | { |
846 | while (*dlp) | |
847 | dlp = &(*dlp)->next; | |
848 | *dlp = list; | |
849 | } | |
850 | ||
a655e550 | 851 | struct mddev_dev *conf_get_devs() |
64c4757e | 852 | { |
52826846 NB |
853 | glob_t globbuf; |
854 | struct conf_dev *cd; | |
855 | int flags = 0; | |
a655e550 | 856 | static struct mddev_dev *dlist = NULL; |
98c6faba | 857 | unsigned int i; |
52826846 NB |
858 | |
859 | while (dlist) { | |
a655e550 | 860 | struct mddev_dev *t = dlist; |
52826846 NB |
861 | dlist = dlist->next; |
862 | free(t->devname); | |
863 | free(t); | |
864 | } | |
aba69144 | 865 | |
8aec876d | 866 | load_conffile(); |
a99d6b66 | 867 | |
f8f84cd5 DW |
868 | if (cdevlist == NULL) { |
869 | /* default to 'partitions' and 'containers' */ | |
a99d6b66 | 870 | dlist = load_partitions(); |
f8f84cd5 DW |
871 | append_dlist(&dlist, load_containers()); |
872 | } | |
a99d6b66 | 873 | |
52826846 | 874 | for (cd=cdevlist; cd; cd=cd->next) { |
f64165f7 DW |
875 | if (strcasecmp(cd->name, "partitions")==0) |
876 | append_dlist(&dlist, load_partitions()); | |
877 | else if (strcasecmp(cd->name, "containers")==0) | |
878 | append_dlist(&dlist, load_containers()); | |
057bd352 NB |
879 | else { |
880 | glob(cd->name, flags, NULL, &globbuf); | |
881 | flags |= GLOB_APPEND; | |
882 | } | |
52826846 | 883 | } |
e0d19036 NB |
884 | if (flags & GLOB_APPEND) { |
885 | for (i=0; i<globbuf.gl_pathc; i++) { | |
503975b9 N |
886 | struct mddev_dev *t = xmalloc(sizeof(*t)); |
887 | t->devname = xstrdup(globbuf.gl_pathv[i]); | |
e0d19036 | 888 | t->next = dlist; |
da6b5ca9 | 889 | t->used = 0; |
e0d19036 | 890 | dlist = t; |
82b27616 | 891 | /* printf("one dev is %s\n", t->devname);*/ |
e0d19036 NB |
892 | } |
893 | globfree(&globbuf); | |
52826846 | 894 | } |
82b27616 | 895 | |
52826846 | 896 | return dlist; |
64c4757e NB |
897 | } |
898 | ||
8382f19b NB |
899 | int conf_test_dev(char *devname) |
900 | { | |
901 | struct conf_dev *cd; | |
902 | if (cdevlist == NULL) | |
903 | /* allow anything by default */ | |
904 | return 1; | |
905 | for (cd = cdevlist ; cd ; cd = cd->next) { | |
906 | if (strcasecmp(cd->name, "partitions") == 0) | |
907 | return 1; | |
908 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
909 | return 1; | |
910 | } | |
911 | return 0; | |
912 | } | |
913 | ||
4e8d9f0a | 914 | int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost) |
31015d57 | 915 | { |
4e8d9f0a N |
916 | /* If anyone said 'yes', that sticks. |
917 | * else if homehost applies, use that | |
918 | * else if there is a 'no', say 'no'. | |
919 | * else 'yes'. | |
31015d57 | 920 | */ |
4e8d9f0a | 921 | struct dev_policy *p; |
b10c663e | 922 | int no=0, found_homehost=0; |
31015d57 | 923 | load_conffile(); |
4e8d9f0a N |
924 | |
925 | pol = pol_find(pol, pol_auto); | |
926 | pol_for_each(p, pol, version) { | |
927 | if (strcmp(p->value, "yes") == 0) | |
31015d57 | 928 | return 1; |
b10c663e N |
929 | if (strcmp(p->value, "homehost") == 0) |
930 | found_homehost = 1; | |
4e8d9f0a N |
931 | if (strcmp(p->value, "no") == 0) |
932 | no = 1; | |
31015d57 | 933 | } |
b10c663e | 934 | if (is_homehost && found_homehost) |
4e8d9f0a N |
935 | return 1; |
936 | if (no) | |
937 | return 0; | |
31015d57 N |
938 | return 1; |
939 | } | |
8382f19b | 940 | |
52826846 NB |
941 | int match_oneof(char *devices, char *devname) |
942 | { | |
5d500228 N |
943 | /* check if one of the comma separated patterns in devices |
944 | * matches devname | |
945 | */ | |
946 | ||
947 | while (devices && *devices) { | |
948 | char patn[1024]; | |
949 | char *p = devices; | |
950 | devices = strchr(devices, ','); | |
951 | if (!devices) | |
952 | devices = p + strlen(p); | |
953 | if (devices-p < 1024) { | |
954 | strncpy(patn, p, devices-p); | |
955 | patn[devices-p] = 0; | |
956 | if (fnmatch(patn, devname, FNM_PATHNAME)==0) | |
957 | return 1; | |
958 | } | |
959 | if (*devices == ',') | |
960 | devices++; | |
52826846 | 961 | } |
5d500228 | 962 | return 0; |
52826846 | 963 | } |
0ac91628 N |
964 | |
965 | int devname_matches(char *name, char *match) | |
966 | { | |
967 | /* See if the given array name matches the | |
968 | * given match from config file. | |
969 | * | |
970 | * First strip and /dev/md/ or /dev/, then | |
971 | * see if there might be a numeric match of | |
972 | * mdNN with NN | |
973 | * then just strcmp | |
974 | */ | |
975 | if (strncmp(name, "/dev/md/", 8) == 0) | |
976 | name += 8; | |
977 | else if (strncmp(name, "/dev/", 5) == 0) | |
978 | name += 5; | |
979 | ||
980 | if (strncmp(match, "/dev/md/", 8) == 0) | |
981 | match += 8; | |
982 | else if (strncmp(match, "/dev/", 5) == 0) | |
983 | match += 5; | |
984 | ||
985 | ||
986 | if (strncmp(name, "md", 2) == 0 && | |
987 | isdigit(name[2])) | |
988 | name += 2; | |
989 | if (strncmp(match, "md", 2) == 0 && | |
990 | isdigit(match[2])) | |
991 | match += 2; | |
992 | ||
993 | return (strcmp(name, match) == 0); | |
994 | } | |
995 | ||
996 | int conf_name_is_free(char *name) | |
997 | { | |
998 | /* Check if this name is already take by an ARRAY entry in | |
999 | * the config file. | |
1000 | * It can be taken either by a match on devname, name, or | |
1001 | * even super-minor. | |
1002 | */ | |
fa56eddb | 1003 | struct mddev_ident *dev; |
0ac91628 N |
1004 | |
1005 | load_conffile(); | |
1006 | for (dev = mddevlist; dev; dev = dev->next) { | |
1007 | char nbuf[100]; | |
1008 | if (dev->devname && devname_matches(name, dev->devname)) | |
1009 | return 0; | |
1010 | if (dev->name[0] && devname_matches(name, dev->name)) | |
1011 | return 0; | |
1012 | sprintf(nbuf, "%d", dev->super_minor); | |
1013 | if (dev->super_minor != UnSet && | |
1014 | devname_matches(name, nbuf)) | |
1015 | return 0; | |
1016 | } | |
1017 | return 1; | |
1018 | } | |
360b4636 | 1019 | |
2244d1a9 N |
1020 | struct mddev_ident *conf_match(struct supertype *st, |
1021 | struct mdinfo *info, | |
1022 | char *devname, | |
1023 | int verbose, int *rvp) | |
360b4636 | 1024 | { |
fa56eddb | 1025 | struct mddev_ident *array_list, *match; |
360b4636 N |
1026 | array_list = conf_get_ident(NULL); |
1027 | match = NULL; | |
1028 | for (; array_list; array_list = array_list->next) { | |
1029 | if (array_list->uuid_set && | |
1030 | same_uuid(array_list->uuid, info->uuid, st->ss->swapuuid) | |
1031 | == 0) { | |
1032 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1033 | pr_err("UUID differs from %s.\n", |
1034 | array_list->devname); | |
360b4636 N |
1035 | continue; |
1036 | } | |
1037 | if (array_list->name[0] && | |
1038 | strcasecmp(array_list->name, info->name) != 0) { | |
1039 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1040 | pr_err("Name differs from %s.\n", |
1041 | array_list->devname); | |
360b4636 N |
1042 | continue; |
1043 | } | |
9f1b0f0f | 1044 | if (array_list->devices && devname && |
360b4636 N |
1045 | !match_oneof(array_list->devices, devname)) { |
1046 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1047 | pr_err("Not a listed device for %s.\n", |
1048 | array_list->devname); | |
360b4636 N |
1049 | continue; |
1050 | } | |
1051 | if (array_list->super_minor != UnSet && | |
1052 | array_list->super_minor != info->array.md_minor) { | |
1053 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1054 | pr_err("Different super-minor to %s.\n", |
1055 | array_list->devname); | |
360b4636 N |
1056 | continue; |
1057 | } | |
1058 | if (!array_list->uuid_set && | |
1059 | !array_list->name[0] && | |
1060 | !array_list->devices && | |
1061 | array_list->super_minor == UnSet) { | |
1062 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1063 | pr_err("%s doesn't have any identifying" |
1064 | " information.\n", | |
1065 | array_list->devname); | |
360b4636 N |
1066 | continue; |
1067 | } | |
1068 | /* FIXME, should I check raid_disks and level too?? */ | |
1069 | ||
1070 | if (match) { | |
1071 | if (verbose >= 0) { | |
1072 | if (match->devname && array_list->devname) | |
e7b84f9d N |
1073 | pr_err("we match both %s and %s - " |
1074 | "cannot decide which to use.\n", | |
1075 | match->devname, | |
1076 | array_list->devname); | |
360b4636 | 1077 | else |
e7b84f9d N |
1078 | pr_err("multiple lines in mdadm.conf" |
1079 | " match\n"); | |
360b4636 | 1080 | } |
2244d1a9 N |
1081 | if (rvp) |
1082 | *rvp = 2; | |
1083 | match = NULL; | |
1084 | break; | |
360b4636 N |
1085 | } |
1086 | match = array_list; | |
1087 | } | |
1088 | return match; | |
1089 | } | |
7c336758 LO |
1090 | |
1091 | int conf_verify_devnames(struct mddev_ident *array_list) | |
1092 | { | |
1093 | struct mddev_ident *a1, *a2; | |
1094 | ||
1095 | for (a1 = array_list; a1; a1 = a1->next) { | |
1096 | if (!a1->devname) | |
1097 | continue; | |
1098 | for (a2 = a1->next; a2; a2 = a2->next) { | |
1099 | if (!a2->devname) | |
1100 | continue; | |
1101 | if (strcmp(a1->devname, a2->devname) != 0) | |
1102 | continue; | |
1103 | ||
1104 | if (a1->uuid_set && a2->uuid_set) { | |
1105 | char nbuf[64]; | |
1106 | __fname_from_uuid(a1->uuid, 0, nbuf, ':'); | |
e7b84f9d N |
1107 | pr_err("Devices %s and ", |
1108 | nbuf); | |
7c336758 LO |
1109 | __fname_from_uuid(a2->uuid, 0, nbuf, ':'); |
1110 | fprintf(stderr, | |
1111 | "%s have the same name: %s\n", | |
1112 | nbuf, a1->devname); | |
1113 | } else | |
e7b84f9d | 1114 | pr_err("Device %s given twice" |
7c336758 LO |
1115 | " in config file\n", a1->devname); |
1116 | return 1; | |
1117 | } | |
1118 | } | |
1119 | ||
1120 | return 0; | |
1121 | } |