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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 | ||
82b27616 | 150 | struct conf_dev { |
5d500228 N |
151 | struct conf_dev *next; |
152 | char *name; | |
82b27616 NB |
153 | } *cdevlist = NULL; |
154 | ||
a655e550 | 155 | struct mddev_dev *load_partitions(void) |
5787fa49 NB |
156 | { |
157 | FILE *f = fopen("/proc/partitions", "r"); | |
158 | char buf[1024]; | |
a655e550 | 159 | struct mddev_dev *rv = NULL; |
5787fa49 | 160 | if (f == NULL) { |
e7b84f9d | 161 | pr_err("cannot open /proc/partitions\n"); |
057bd352 | 162 | return NULL; |
5787fa49 NB |
163 | } |
164 | while (fgets(buf, 1024, f)) { | |
165 | int major, minor; | |
98c6faba | 166 | char *name, *mp; |
a655e550 | 167 | struct mddev_dev *d; |
8b0dabea | 168 | |
5787fa49 NB |
169 | buf[1023] = '\0'; |
170 | if (buf[0] != ' ') | |
171 | continue; | |
98c6faba | 172 | major = strtoul(buf, &mp, 10); |
aba69144 | 173 | if (mp == buf || *mp != ' ') |
5787fa49 | 174 | continue; |
98c6faba NB |
175 | minor = strtoul(mp, NULL, 10); |
176 | ||
16c6fa80 | 177 | name = map_dev(major, minor, 1); |
e81cdd9f NB |
178 | if (!name) |
179 | continue; | |
503975b9 | 180 | d = xmalloc(sizeof(*d)); |
5e73b024 | 181 | memset(d, 0, sizeof(*d)); |
503975b9 | 182 | d->devname = xstrdup(name); |
8b0dabea NB |
183 | d->next = rv; |
184 | rv = d; | |
5787fa49 | 185 | } |
dd0781e5 | 186 | fclose(f); |
057bd352 | 187 | return rv; |
5787fa49 | 188 | } |
82b27616 | 189 | |
a655e550 | 190 | struct mddev_dev *load_containers(void) |
f64165f7 DW |
191 | { |
192 | struct mdstat_ent *mdstat = mdstat_read(1, 0); | |
193 | struct mdstat_ent *ent; | |
a655e550 N |
194 | struct mddev_dev *d; |
195 | struct mddev_dev *rv = NULL; | |
f64165f7 DW |
196 | |
197 | if (!mdstat) | |
198 | return NULL; | |
199 | ||
200 | for (ent = mdstat; ent; ent = ent->next) | |
201 | if (ent->metadata_version && | |
202 | strncmp(ent->metadata_version, "external:", 9) == 0 && | |
203 | !is_subarray(&ent->metadata_version[9])) { | |
503975b9 | 204 | d = xmalloc(sizeof(*d)); |
5e73b024 | 205 | memset(d, 0, sizeof(*d)); |
f64165f7 DW |
206 | if (asprintf(&d->devname, "/dev/%s", ent->dev) < 0) { |
207 | free(d); | |
208 | continue; | |
209 | } | |
210 | d->next = rv; | |
f64165f7 DW |
211 | rv = d; |
212 | } | |
213 | free_mdstat(mdstat); | |
214 | ||
215 | return rv; | |
216 | } | |
217 | ||
5bbb4842 | 218 | struct createinfo createinfo = { |
75723446 | 219 | .autof = 2, /* by default, create devices with standard names */ |
38098016 | 220 | .symlinks = 1, |
eca944fa | 221 | .names = 0, /* By default, stick with numbered md devices. */ |
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; | |
eca944fa N |
337 | else if (strncasecmp(w, "names=yes", 12) == 0) |
338 | createinfo.names = 1; | |
339 | else if (strncasecmp(w, "names=no", 11) == 0) | |
340 | createinfo.names = 0; | |
38098016 | 341 | else { |
e7b84f9d | 342 | pr_err("unrecognised word on CREATE line: %s\n", |
5bbb4842 NB |
343 | w); |
344 | } | |
345 | } | |
346 | } | |
82b27616 | 347 | |
aba69144 | 348 | void devline(char *line) |
82b27616 | 349 | { |
52826846 NB |
350 | char *w; |
351 | struct conf_dev *cd; | |
352 | ||
353 | for (w=dl_next(line); w != line; w=dl_next(w)) { | |
f64165f7 DW |
354 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0 || |
355 | strcasecmp(w, "containers") == 0) { | |
503975b9 N |
356 | cd = xmalloc(sizeof(*cd)); |
357 | cd->name = xstrdup(w); | |
52826846 NB |
358 | cd->next = cdevlist; |
359 | cdevlist = cd; | |
360 | } else { | |
e7b84f9d | 361 | pr_err("unreconised word on DEVICE line: %s\n", |
52826846 NB |
362 | w); |
363 | } | |
82b27616 | 364 | } |
82b27616 NB |
365 | } |
366 | ||
fa56eddb N |
367 | struct mddev_ident *mddevlist = NULL; |
368 | struct mddev_ident **mddevlp = &mddevlist; | |
82b27616 | 369 | |
db2d001c N |
370 | static int is_number(char *w) |
371 | { | |
372 | /* check if there are 1 or more digits and nothing else */ | |
373 | int digits = 0; | |
374 | while (*w && isdigit(*w)) { | |
375 | digits++; | |
376 | w++; | |
377 | } | |
378 | return (digits && ! *w); | |
379 | } | |
380 | ||
82b27616 NB |
381 | void arrayline(char *line) |
382 | { | |
52826846 NB |
383 | char *w; |
384 | ||
fa56eddb N |
385 | struct mddev_ident mis; |
386 | struct mddev_ident *mi; | |
52826846 NB |
387 | |
388 | mis.uuid_set = 0; | |
98c6faba NB |
389 | mis.super_minor = UnSet; |
390 | mis.level = UnSet; | |
391 | mis.raid_disks = UnSet; | |
4ccdb956 | 392 | mis.spare_disks = 0; |
52826846 NB |
393 | mis.devices = NULL; |
394 | mis.devname = NULL; | |
e0d19036 | 395 | mis.spare_group = NULL; |
dd0781e5 | 396 | mis.autof = 0; |
92919398 | 397 | mis.next = NULL; |
f277ce36 NB |
398 | mis.st = NULL; |
399 | mis.bitmap_fd = -1; | |
7ef02d01 | 400 | mis.bitmap_file = NULL; |
947fd4dd | 401 | mis.name[0] = 0; |
71d60c48 DW |
402 | mis.container = NULL; |
403 | mis.member = NULL; | |
52826846 NB |
404 | |
405 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
db2d001c N |
406 | if (w[0] == '/' || strchr(w, '=') == NULL) { |
407 | /* This names the device, or is '<ignore>'. | |
408 | * The rules match those in create_mddev. | |
409 | * 'w' must be: | |
410 | * /dev/md/{anything} | |
411 | * /dev/mdNN | |
412 | * /dev/md_dNN | |
413 | * <ignore> | |
414 | * or anything that doesn't start '/' or '<' | |
415 | */ | |
416 | if (strcasecmp(w, "<ignore>") == 0 || | |
417 | strncmp(w, "/dev/md/", 8) == 0 || | |
418 | (w[0] != '/' && w[0] != '<') || | |
1011e834 | 419 | (strncmp(w, "/dev/md", 7) == 0 && |
db2d001c N |
420 | is_number(w+7)) || |
421 | (strncmp(w, "/dev/md_d", 9) == 0 && | |
422 | is_number(w+9)) | |
423 | ) { | |
424 | /* This is acceptable */; | |
425 | if (mis.devname) | |
e7b84f9d | 426 | pr_err("only give one " |
db2d001c N |
427 | "device per ARRAY line: %s and %s\n", |
428 | mis.devname, w); | |
429 | else | |
430 | mis.devname = w; | |
431 | }else { | |
e7b84f9d | 432 | pr_err("%s is an invalid name for " |
db2d001c N |
433 | "an md device - ignored.\n", w); |
434 | } | |
52826846 NB |
435 | } else if (strncasecmp(w, "uuid=", 5)==0 ) { |
436 | if (mis.uuid_set) | |
e7b84f9d | 437 | pr_err("only specify uuid once, %s ignored.\n", |
52826846 NB |
438 | w); |
439 | else { | |
440 | if (parse_uuid(w+5, mis.uuid)) | |
441 | mis.uuid_set = 1; | |
442 | else | |
e7b84f9d | 443 | pr_err("bad uuid: %s\n", w); |
52826846 NB |
444 | } |
445 | } else if (strncasecmp(w, "super-minor=", 12)==0 ) { | |
f277ce36 | 446 | if (mis.super_minor != UnSet) |
e7b84f9d | 447 | pr_err("only specify super-minor once, %s ignored.\n", |
52826846 NB |
448 | w); |
449 | else { | |
450 | char *endptr; | |
f21e18ca N |
451 | int minor = strtol(w+12, &endptr, 10); |
452 | ||
453 | if (w[12]==0 || endptr[0]!=0 || minor < 0) | |
e7b84f9d | 454 | pr_err("invalid super-minor number: %s\n", |
52826846 | 455 | w); |
f21e18ca N |
456 | else |
457 | mis.super_minor = minor; | |
52826846 | 458 | } |
947fd4dd NB |
459 | } else if (strncasecmp(w, "name=", 5)==0) { |
460 | if (mis.name[0]) | |
e7b84f9d | 461 | pr_err("only specify name once, %s ignored.\n", |
947fd4dd NB |
462 | w); |
463 | else if (strlen(w+5) > 32) | |
e7b84f9d | 464 | pr_err("name too long, ignoring %s\n", w); |
947fd4dd NB |
465 | else |
466 | strcpy(mis.name, w+5); | |
467 | ||
7ef02d01 NB |
468 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { |
469 | if (mis.bitmap_file) | |
e7b84f9d | 470 | pr_err("only specify bitmap file once. %s ignored\n", |
7ef02d01 NB |
471 | w); |
472 | else | |
503975b9 | 473 | mis.bitmap_file = xstrdup(w+7); |
7ef02d01 | 474 | |
52826846 NB |
475 | } else if (strncasecmp(w, "devices=", 8 ) == 0 ) { |
476 | if (mis.devices) | |
e7b84f9d | 477 | pr_err("only specify devices once (use a comma separated list). %s ignored\n", |
52826846 NB |
478 | w); |
479 | else | |
503975b9 | 480 | mis.devices = xstrdup(w+8); |
52826846 NB |
481 | } else if (strncasecmp(w, "spare-group=", 12) == 0 ) { |
482 | if (mis.spare_group) | |
e7b84f9d | 483 | pr_err("only specify one spare group per array. %s ignored.\n", |
52826846 NB |
484 | w); |
485 | else | |
503975b9 | 486 | mis.spare_group = xstrdup(w+12); |
cd29a5c8 NB |
487 | } else if (strncasecmp(w, "level=", 6) == 0 ) { |
488 | /* this is mainly for compatability with --brief output */ | |
489 | mis.level = map_name(pers, w+6); | |
490 | } else if (strncasecmp(w, "disks=", 6) == 0 ) { | |
491 | /* again, for compat */ | |
feb716e9 | 492 | mis.raid_disks = atoi(w+6); |
b83d95f3 NB |
493 | } else if (strncasecmp(w, "num-devices=", 12) == 0 ) { |
494 | /* again, for compat */ | |
feb716e9 NB |
495 | mis.raid_disks = atoi(w+12); |
496 | } else if (strncasecmp(w, "spares=", 7) == 0 ) { | |
497 | /* for warning if not all spares present */ | |
498 | mis.spare_disks = atoi(w+7); | |
f9ce90ba NB |
499 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
500 | /* style of metadata on the devices. */ | |
501 | int i; | |
aba69144 | 502 | |
82d9eba6 NB |
503 | for(i=0; superlist[i] && !mis.st; i++) |
504 | mis.st = superlist[i]->match_metadata_desc(w+9); | |
505 | ||
506 | if (!mis.st) | |
e7b84f9d | 507 | pr_err("metadata format %s unknown, ignored.\n", w+9); |
dd0781e5 NB |
508 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { |
509 | /* whether to create device special files as needed */ | |
f1ae21c4 | 510 | mis.autof = parse_auto(w+5, "auto type", 0); |
dbb44303 N |
511 | } else if (strncasecmp(w, "member=", 7) == 0) { |
512 | /* subarray within a container */ | |
503975b9 | 513 | mis.member = xstrdup(w+7); |
dbb44303 | 514 | } else if (strncasecmp(w, "container=", 10) == 0) { |
1771a6e2 N |
515 | /* the container holding this subarray. Either a device name |
516 | * or a uuid */ | |
503975b9 | 517 | mis.container = xstrdup(w+10); |
52826846 | 518 | } else { |
e7b84f9d | 519 | pr_err("unrecognised word on ARRAY line: %s\n", |
52826846 NB |
520 | w); |
521 | } | |
522 | } | |
b1b12d58 N |
523 | if (mis.uuid_set == 0 && mis.devices == NULL && |
524 | mis.super_minor == UnSet && mis.name[0] == 0 && | |
aa7c284c | 525 | (mis.container == NULL || mis.member == NULL)) |
e7b84f9d | 526 | pr_err("ARRAY line %s has no identity information.\n", mis.devname); |
52826846 | 527 | else { |
503975b9 | 528 | mi = xmalloc(sizeof(*mi)); |
52826846 | 529 | *mi = mis; |
503975b9 | 530 | mi->devname = mis.devname ? xstrdup(mis.devname) : NULL; |
52826846 NB |
531 | mi->next = NULL; |
532 | *mddevlp = mi; | |
533 | mddevlp = &mi->next; | |
82b27616 | 534 | } |
82b27616 | 535 | } |
e0d19036 NB |
536 | |
537 | static char *alert_email = NULL; | |
538 | void mailline(char *line) | |
539 | { | |
540 | char *w; | |
541 | ||
542 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
543 | if (alert_email == NULL) | |
503975b9 | 544 | alert_email = xstrdup(w); |
e0d19036 | 545 | else |
e7b84f9d | 546 | pr_err("excess address on MAIL line: %s - ignored\n", |
e0d19036 NB |
547 | w); |
548 | } | |
549 | } | |
550 | ||
4948b8f7 NB |
551 | static char *alert_mail_from = NULL; |
552 | void mailfromline(char *line) | |
553 | { | |
554 | char *w; | |
555 | ||
556 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
557 | if (alert_mail_from == NULL) | |
503975b9 | 558 | alert_mail_from = xstrdup(w); |
4948b8f7 | 559 | else { |
3d2c4fc7 DW |
560 | char *t = NULL; |
561 | ||
78fbcc10 | 562 | if (xasprintf(&t, "%s %s", alert_mail_from, w) > 0) { |
3d2c4fc7 DW |
563 | free(alert_mail_from); |
564 | alert_mail_from = t; | |
565 | } | |
4948b8f7 NB |
566 | } |
567 | } | |
568 | } | |
569 | ||
e0d19036 NB |
570 | static char *alert_program = NULL; |
571 | void programline(char *line) | |
572 | { | |
573 | char *w; | |
574 | ||
575 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
576 | if (alert_program == NULL) | |
503975b9 | 577 | alert_program = xstrdup(w); |
e0d19036 | 578 | else |
e7b84f9d | 579 | pr_err("excess program on PROGRAM line: %s - ignored\n", |
e0d19036 NB |
580 | w); |
581 | } | |
582 | } | |
583 | ||
997aed5d | 584 | static char *home_host = NULL; |
0ac91628 | 585 | static int require_homehost = 1; |
997aed5d NB |
586 | void homehostline(char *line) |
587 | { | |
588 | char *w; | |
589 | ||
590 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
0ac91628 N |
591 | if (strcasecmp(w, "<ignore>")==0) |
592 | require_homehost = 0; | |
0f23aa88 N |
593 | else if (home_host == NULL) { |
594 | if (strcasecmp(w, "<none>")==0) | |
503975b9 | 595 | home_host = xstrdup(""); |
0f23aa88 | 596 | else |
503975b9 | 597 | home_host = xstrdup(w); |
0f23aa88 | 598 | }else |
e7b84f9d | 599 | pr_err("excess host name on HOMEHOST line: %s - ignored\n", |
997aed5d NB |
600 | w); |
601 | } | |
602 | } | |
603 | ||
4e8d9f0a N |
604 | char auto_yes[] = "yes"; |
605 | char auto_no[] = "no"; | |
606 | char auto_homehost[] = "homehost"; | |
607 | ||
608 | static int auto_seen = 0; | |
31015d57 N |
609 | void autoline(char *line) |
610 | { | |
4d0b563b | 611 | char *w; |
4e8d9f0a N |
612 | char *seen; |
613 | int super_cnt; | |
614 | char *dflt = auto_yes; | |
615 | int homehost = 0; | |
616 | int i; | |
4d0b563b | 617 | |
4e8d9f0a | 618 | if (auto_seen) { |
e7b84f9d | 619 | pr_err("AUTO line may only be give once." |
31015d57 N |
620 | " Subsequent lines ignored\n"); |
621 | return; | |
622 | } | |
4e8d9f0a N |
623 | /* Parse the 'auto' line creating policy statements for the 'auto' policy. |
624 | * | |
625 | * The default is 'yes' but the 'auto' line might over-ride that. | |
626 | * Words in the line are processed in order with the first | |
627 | * match winning. | |
628 | * word can be: | |
629 | * +version - that version can be assembled | |
630 | * -version - that version cannot be auto-assembled | |
631 | * yes or +all - any other version can be assembled | |
632 | * no or -all - no other version can be assembled. | |
633 | * homehost - any array associated by 'homehost' to this | |
634 | * host can be assembled. | |
635 | * | |
636 | * Thus: | |
637 | * +ddf -0.90 homehost -all | |
638 | * will auto-assemble any ddf array, no 0.90 array, and | |
639 | * any other array (imsm, 1.x) if and only if it is identified | |
640 | * as belonging to this host. | |
641 | * | |
642 | * We translate that to policy by creating 'auto=yes' when we see | |
643 | * a '+version' line, 'auto=no' if we see '-version' before 'homehost', | |
644 | * or 'auto=homehost' if we see '-version' after 'homehost'. | |
b10c663e | 645 | * When we see yes, no, +all or -all we stop and any version that hasn't |
4e8d9f0a N |
646 | * been seen gets an appropriate auto= entry. |
647 | */ | |
4d0b563b | 648 | |
4e8d9f0a N |
649 | for (super_cnt = 0; superlist[super_cnt]; super_cnt++) |
650 | ; | |
503975b9 | 651 | seen = xcalloc(super_cnt, 1); |
4d0b563b | 652 | |
4e8d9f0a N |
653 | for (w = dl_next(line); w != line ; w = dl_next(w)) { |
654 | char *val; | |
655 | ||
656 | if (strcasecmp(w, "yes") == 0) { | |
657 | dflt = auto_yes; | |
658 | break; | |
659 | } | |
660 | if (strcasecmp(w, "no") == 0) { | |
661 | if (homehost) | |
662 | dflt = auto_homehost; | |
663 | else | |
664 | dflt = auto_no; | |
665 | break; | |
666 | } | |
667 | if (strcasecmp(w, "homehost") == 0) { | |
668 | homehost = 1; | |
669 | continue; | |
670 | } | |
671 | if (w[0] == '+') | |
672 | val = auto_yes; | |
673 | else if (w[0] == '-') { | |
674 | if (homehost) | |
675 | val = auto_homehost; | |
676 | else | |
677 | val = auto_no; | |
678 | } else | |
679 | continue; | |
680 | ||
681 | if (strcasecmp(w+1, "all") == 0) { | |
682 | dflt = val; | |
683 | break; | |
684 | } | |
685 | for (i = 0; superlist[i]; i++) { | |
686 | const char *version = superlist[i]->name; | |
687 | if (strcasecmp(w+1, version) == 0) | |
688 | break; | |
689 | /* 1 matches 1.x, 0 matches 0.90 */ | |
690 | if (version[1] == '.' && | |
691 | strlen(w+1) == 1 && | |
692 | w[1] == version[0]) | |
693 | break; | |
694 | /* 1.anything matches 1.x */ | |
695 | if (strcmp(version, "1.x") == 0 && | |
696 | strncmp(w+1, "1.", 2) == 0) | |
697 | break; | |
698 | } | |
699 | if (superlist[i] == NULL) | |
700 | /* ignore this word */ | |
701 | continue; | |
702 | if (seen[i]) | |
703 | /* already know about this metadata */ | |
704 | continue; | |
705 | policy_add(rule_policy, pol_auto, val, pol_metadata, superlist[i]->name, NULL); | |
706 | seen[i] = 1; | |
4d0b563b | 707 | } |
4e8d9f0a N |
708 | for (i = 0; i < super_cnt; i++) |
709 | if (!seen[i]) | |
710 | policy_add(rule_policy, pol_auto, dflt, pol_metadata, superlist[i]->name, NULL); | |
42de2ac2 TJ |
711 | |
712 | free(seen); | |
31015d57 | 713 | } |
e0d19036 | 714 | |
82b27616 NB |
715 | int loaded = 0; |
716 | ||
8aec876d NB |
717 | static char *conffile = NULL; |
718 | void set_conffile(char *file) | |
719 | { | |
720 | conffile = file; | |
721 | } | |
722 | ||
723 | void load_conffile(void) | |
82b27616 | 724 | { |
52826846 NB |
725 | FILE *f; |
726 | char *line; | |
727 | ||
728 | if (loaded) return; | |
729 | if (conffile == NULL) | |
730 | conffile = DefaultConfFile; | |
731 | ||
d013a55e NB |
732 | if (strcmp(conffile, "none") == 0) { |
733 | loaded = 1; | |
734 | return; | |
735 | } | |
5787fa49 | 736 | if (strcmp(conffile, "partitions")==0) { |
b5687415 NB |
737 | char *list = dl_strdup("DEV"); |
738 | dl_init(list); | |
739 | dl_add(list, dl_strdup("partitions")); | |
740 | devline(list); | |
741 | free_line(list); | |
d013a55e | 742 | loaded = 1; |
5787fa49 NB |
743 | return; |
744 | } | |
52826846 | 745 | f = fopen(conffile, "r"); |
ce4fafd6 NB |
746 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. |
747 | * To allow Debian users to compile from clean source and still | |
748 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
749 | * if /etc/mdadm.conf doesn't exist | |
750 | */ | |
751 | if (f == NULL && | |
752 | conffile == DefaultConfFile) { | |
753 | f = fopen(DefaultAltConfFile, "r"); | |
754 | if (f) | |
755 | conffile = DefaultAltConfFile; | |
756 | } | |
757 | if (f == NULL) | |
52826846 NB |
758 | return; |
759 | ||
760 | loaded = 1; | |
761 | while ((line=conf_line(f))) { | |
762 | switch(match_keyword(line)) { | |
8fe9db0f | 763 | case Devices: |
52826846 NB |
764 | devline(line); |
765 | break; | |
8fe9db0f | 766 | case Array: |
52826846 NB |
767 | arrayline(line); |
768 | break; | |
8fe9db0f | 769 | case Mailaddr: |
e0d19036 NB |
770 | mailline(line); |
771 | break; | |
8fe9db0f | 772 | case Mailfrom: |
4948b8f7 NB |
773 | mailfromline(line); |
774 | break; | |
8fe9db0f NB |
775 | case Program: |
776 | programline(line); | |
777 | break; | |
778 | case CreateDev: | |
5bbb4842 NB |
779 | createline(line); |
780 | break; | |
997aed5d NB |
781 | case Homehost: |
782 | homehostline(line); | |
783 | break; | |
31015d57 N |
784 | case AutoMode: |
785 | autoline(line); | |
786 | break; | |
5527fc74 N |
787 | case Policy: |
788 | policyline(line, rule_policy); | |
789 | break; | |
790 | case PartPolicy: | |
791 | policyline(line, rule_part); | |
792 | break; | |
52826846 | 793 | default: |
e7b84f9d | 794 | pr_err("Unknown keyword %s\n", line); |
52826846 NB |
795 | } |
796 | free_line(line); | |
82b27616 | 797 | } |
aba69144 | 798 | |
dd0781e5 | 799 | fclose(f); |
82b27616 NB |
800 | |
801 | /* printf("got file\n"); */ | |
802 | } | |
803 | ||
8aec876d | 804 | char *conf_get_mailaddr(void) |
e0d19036 | 805 | { |
8aec876d | 806 | load_conffile(); |
e0d19036 NB |
807 | return alert_email; |
808 | } | |
809 | ||
8aec876d | 810 | char *conf_get_mailfrom(void) |
4948b8f7 | 811 | { |
8aec876d | 812 | load_conffile(); |
4948b8f7 NB |
813 | return alert_mail_from; |
814 | } | |
815 | ||
8aec876d | 816 | char *conf_get_program(void) |
e0d19036 | 817 | { |
8aec876d | 818 | load_conffile(); |
e0d19036 NB |
819 | return alert_program; |
820 | } | |
821 | ||
0ac91628 | 822 | char *conf_get_homehost(int *require_homehostp) |
997aed5d | 823 | { |
8aec876d | 824 | load_conffile(); |
0ac91628 N |
825 | if (require_homehostp) |
826 | *require_homehostp = require_homehost; | |
997aed5d NB |
827 | return home_host; |
828 | } | |
829 | ||
8aec876d | 830 | struct createinfo *conf_get_create_info(void) |
5bbb4842 | 831 | { |
8aec876d | 832 | load_conffile(); |
5bbb4842 NB |
833 | return &createinfo; |
834 | } | |
82b27616 | 835 | |
fa56eddb | 836 | struct mddev_ident *conf_get_ident(char *dev) |
64c4757e | 837 | { |
fa56eddb | 838 | struct mddev_ident *rv; |
8aec876d | 839 | load_conffile(); |
52826846 | 840 | rv = mddevlist; |
fe056d1f | 841 | while (dev && rv && (rv->devname == NULL |
5c4c9ab1 | 842 | || !devname_matches(dev, rv->devname))) |
52826846 NB |
843 | rv = rv->next; |
844 | return rv; | |
64c4757e NB |
845 | } |
846 | ||
a655e550 | 847 | static void append_dlist(struct mddev_dev **dlp, struct mddev_dev *list) |
f64165f7 DW |
848 | { |
849 | while (*dlp) | |
850 | dlp = &(*dlp)->next; | |
851 | *dlp = list; | |
852 | } | |
853 | ||
a655e550 | 854 | struct mddev_dev *conf_get_devs() |
64c4757e | 855 | { |
52826846 NB |
856 | glob_t globbuf; |
857 | struct conf_dev *cd; | |
858 | int flags = 0; | |
a655e550 | 859 | static struct mddev_dev *dlist = NULL; |
98c6faba | 860 | unsigned int i; |
52826846 NB |
861 | |
862 | while (dlist) { | |
a655e550 | 863 | struct mddev_dev *t = dlist; |
52826846 NB |
864 | dlist = dlist->next; |
865 | free(t->devname); | |
866 | free(t); | |
867 | } | |
aba69144 | 868 | |
8aec876d | 869 | load_conffile(); |
a99d6b66 | 870 | |
f8f84cd5 DW |
871 | if (cdevlist == NULL) { |
872 | /* default to 'partitions' and 'containers' */ | |
a99d6b66 | 873 | dlist = load_partitions(); |
f8f84cd5 DW |
874 | append_dlist(&dlist, load_containers()); |
875 | } | |
a99d6b66 | 876 | |
52826846 | 877 | for (cd=cdevlist; cd; cd=cd->next) { |
f64165f7 DW |
878 | if (strcasecmp(cd->name, "partitions")==0) |
879 | append_dlist(&dlist, load_partitions()); | |
880 | else if (strcasecmp(cd->name, "containers")==0) | |
881 | append_dlist(&dlist, load_containers()); | |
057bd352 NB |
882 | else { |
883 | glob(cd->name, flags, NULL, &globbuf); | |
884 | flags |= GLOB_APPEND; | |
885 | } | |
52826846 | 886 | } |
e0d19036 NB |
887 | if (flags & GLOB_APPEND) { |
888 | for (i=0; i<globbuf.gl_pathc; i++) { | |
503975b9 | 889 | struct mddev_dev *t = xmalloc(sizeof(*t)); |
5e73b024 | 890 | memset(t, 0, sizeof(*t)); |
503975b9 | 891 | t->devname = xstrdup(globbuf.gl_pathv[i]); |
e0d19036 NB |
892 | t->next = dlist; |
893 | dlist = t; | |
82b27616 | 894 | /* printf("one dev is %s\n", t->devname);*/ |
e0d19036 NB |
895 | } |
896 | globfree(&globbuf); | |
52826846 | 897 | } |
82b27616 | 898 | |
52826846 | 899 | return dlist; |
64c4757e NB |
900 | } |
901 | ||
8382f19b NB |
902 | int conf_test_dev(char *devname) |
903 | { | |
904 | struct conf_dev *cd; | |
905 | if (cdevlist == NULL) | |
906 | /* allow anything by default */ | |
907 | return 1; | |
908 | for (cd = cdevlist ; cd ; cd = cd->next) { | |
909 | if (strcasecmp(cd->name, "partitions") == 0) | |
910 | return 1; | |
911 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
912 | return 1; | |
913 | } | |
914 | return 0; | |
915 | } | |
916 | ||
4e8d9f0a | 917 | int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost) |
31015d57 | 918 | { |
4e8d9f0a N |
919 | /* If anyone said 'yes', that sticks. |
920 | * else if homehost applies, use that | |
921 | * else if there is a 'no', say 'no'. | |
922 | * else 'yes'. | |
31015d57 | 923 | */ |
4e8d9f0a | 924 | struct dev_policy *p; |
b10c663e | 925 | int no=0, found_homehost=0; |
31015d57 | 926 | load_conffile(); |
4e8d9f0a N |
927 | |
928 | pol = pol_find(pol, pol_auto); | |
929 | pol_for_each(p, pol, version) { | |
930 | if (strcmp(p->value, "yes") == 0) | |
31015d57 | 931 | return 1; |
b10c663e N |
932 | if (strcmp(p->value, "homehost") == 0) |
933 | found_homehost = 1; | |
4e8d9f0a N |
934 | if (strcmp(p->value, "no") == 0) |
935 | no = 1; | |
31015d57 | 936 | } |
b10c663e | 937 | if (is_homehost && found_homehost) |
4e8d9f0a N |
938 | return 1; |
939 | if (no) | |
940 | return 0; | |
31015d57 N |
941 | return 1; |
942 | } | |
8382f19b | 943 | |
52826846 NB |
944 | int match_oneof(char *devices, char *devname) |
945 | { | |
5d500228 N |
946 | /* check if one of the comma separated patterns in devices |
947 | * matches devname | |
948 | */ | |
949 | ||
950 | while (devices && *devices) { | |
951 | char patn[1024]; | |
952 | char *p = devices; | |
953 | devices = strchr(devices, ','); | |
954 | if (!devices) | |
955 | devices = p + strlen(p); | |
956 | if (devices-p < 1024) { | |
957 | strncpy(patn, p, devices-p); | |
958 | patn[devices-p] = 0; | |
959 | if (fnmatch(patn, devname, FNM_PATHNAME)==0) | |
960 | return 1; | |
961 | } | |
962 | if (*devices == ',') | |
963 | devices++; | |
52826846 | 964 | } |
5d500228 | 965 | return 0; |
52826846 | 966 | } |
0ac91628 N |
967 | |
968 | int devname_matches(char *name, char *match) | |
969 | { | |
970 | /* See if the given array name matches the | |
971 | * given match from config file. | |
972 | * | |
973 | * First strip and /dev/md/ or /dev/, then | |
974 | * see if there might be a numeric match of | |
975 | * mdNN with NN | |
976 | * then just strcmp | |
977 | */ | |
978 | if (strncmp(name, "/dev/md/", 8) == 0) | |
979 | name += 8; | |
980 | else if (strncmp(name, "/dev/", 5) == 0) | |
981 | name += 5; | |
982 | ||
983 | if (strncmp(match, "/dev/md/", 8) == 0) | |
984 | match += 8; | |
985 | else if (strncmp(match, "/dev/", 5) == 0) | |
986 | match += 5; | |
987 | ||
0ac91628 N |
988 | if (strncmp(name, "md", 2) == 0 && |
989 | isdigit(name[2])) | |
990 | name += 2; | |
991 | if (strncmp(match, "md", 2) == 0 && | |
992 | isdigit(match[2])) | |
993 | match += 2; | |
994 | ||
995 | return (strcmp(name, match) == 0); | |
996 | } | |
997 | ||
998 | int conf_name_is_free(char *name) | |
999 | { | |
4dd2df09 | 1000 | /* Check if this name is already taken by an ARRAY entry in |
0ac91628 N |
1001 | * the config file. |
1002 | * It can be taken either by a match on devname, name, or | |
1003 | * even super-minor. | |
1004 | */ | |
fa56eddb | 1005 | struct mddev_ident *dev; |
0ac91628 N |
1006 | |
1007 | load_conffile(); | |
1008 | for (dev = mddevlist; dev; dev = dev->next) { | |
1009 | char nbuf[100]; | |
1010 | if (dev->devname && devname_matches(name, dev->devname)) | |
1011 | return 0; | |
1012 | if (dev->name[0] && devname_matches(name, dev->name)) | |
1013 | return 0; | |
1014 | sprintf(nbuf, "%d", dev->super_minor); | |
1015 | if (dev->super_minor != UnSet && | |
1016 | devname_matches(name, nbuf)) | |
1017 | return 0; | |
1018 | } | |
1019 | return 1; | |
1020 | } | |
360b4636 | 1021 | |
2244d1a9 N |
1022 | struct mddev_ident *conf_match(struct supertype *st, |
1023 | struct mdinfo *info, | |
1024 | char *devname, | |
1025 | int verbose, int *rvp) | |
360b4636 | 1026 | { |
fa56eddb | 1027 | struct mddev_ident *array_list, *match; |
360b4636 N |
1028 | array_list = conf_get_ident(NULL); |
1029 | match = NULL; | |
1030 | for (; array_list; array_list = array_list->next) { | |
1031 | if (array_list->uuid_set && | |
1032 | same_uuid(array_list->uuid, info->uuid, st->ss->swapuuid) | |
1033 | == 0) { | |
1034 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1035 | pr_err("UUID differs from %s.\n", |
1036 | array_list->devname); | |
360b4636 N |
1037 | continue; |
1038 | } | |
1039 | if (array_list->name[0] && | |
1040 | strcasecmp(array_list->name, info->name) != 0) { | |
1041 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1042 | pr_err("Name differs from %s.\n", |
1043 | array_list->devname); | |
360b4636 N |
1044 | continue; |
1045 | } | |
9f1b0f0f | 1046 | if (array_list->devices && devname && |
360b4636 N |
1047 | !match_oneof(array_list->devices, devname)) { |
1048 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1049 | pr_err("Not a listed device for %s.\n", |
1050 | array_list->devname); | |
360b4636 N |
1051 | continue; |
1052 | } | |
1053 | if (array_list->super_minor != UnSet && | |
1054 | array_list->super_minor != info->array.md_minor) { | |
1055 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1056 | pr_err("Different super-minor to %s.\n", |
1057 | array_list->devname); | |
360b4636 N |
1058 | continue; |
1059 | } | |
1060 | if (!array_list->uuid_set && | |
1061 | !array_list->name[0] && | |
1062 | !array_list->devices && | |
1063 | array_list->super_minor == UnSet) { | |
1064 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1065 | pr_err("%s doesn't have any identifying" |
1066 | " information.\n", | |
1067 | array_list->devname); | |
360b4636 N |
1068 | continue; |
1069 | } | |
1070 | /* FIXME, should I check raid_disks and level too?? */ | |
1071 | ||
1072 | if (match) { | |
1073 | if (verbose >= 0) { | |
1074 | if (match->devname && array_list->devname) | |
e7b84f9d N |
1075 | pr_err("we match both %s and %s - " |
1076 | "cannot decide which to use.\n", | |
1077 | match->devname, | |
1078 | array_list->devname); | |
360b4636 | 1079 | else |
e7b84f9d N |
1080 | pr_err("multiple lines in mdadm.conf" |
1081 | " match\n"); | |
360b4636 | 1082 | } |
2244d1a9 N |
1083 | if (rvp) |
1084 | *rvp = 2; | |
1085 | match = NULL; | |
1086 | break; | |
360b4636 N |
1087 | } |
1088 | match = array_list; | |
1089 | } | |
1090 | return match; | |
1091 | } | |
7c336758 LO |
1092 | |
1093 | int conf_verify_devnames(struct mddev_ident *array_list) | |
1094 | { | |
1095 | struct mddev_ident *a1, *a2; | |
1096 | ||
1097 | for (a1 = array_list; a1; a1 = a1->next) { | |
1098 | if (!a1->devname) | |
1099 | continue; | |
13f2dd6b N |
1100 | if (strcmp(a1->devname, "<ignore>") == 0) |
1101 | continue; | |
7c336758 LO |
1102 | for (a2 = a1->next; a2; a2 = a2->next) { |
1103 | if (!a2->devname) | |
1104 | continue; | |
1105 | if (strcmp(a1->devname, a2->devname) != 0) | |
1106 | continue; | |
1107 | ||
1108 | if (a1->uuid_set && a2->uuid_set) { | |
1109 | char nbuf[64]; | |
1110 | __fname_from_uuid(a1->uuid, 0, nbuf, ':'); | |
e7b84f9d N |
1111 | pr_err("Devices %s and ", |
1112 | nbuf); | |
7c336758 LO |
1113 | __fname_from_uuid(a2->uuid, 0, nbuf, ':'); |
1114 | fprintf(stderr, | |
1115 | "%s have the same name: %s\n", | |
1116 | nbuf, a1->devname); | |
1117 | } else | |
e7b84f9d | 1118 | pr_err("Device %s given twice" |
7c336758 LO |
1119 | " in config file\n", a1->devname); |
1120 | return 1; | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | return 0; | |
1125 | } |