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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 | * |
4f589ad0 | 4 | * Copyright (C) 2001-2006 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 | |
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" |
82b27616 | 31 | #include "dlink.h" |
ff7f2ebb | 32 | #include <dirent.h> |
82b27616 | 33 | #include <glob.h> |
52826846 | 34 | #include <fnmatch.h> |
dd0781e5 | 35 | #include <ctype.h> |
5bbb4842 NB |
36 | #include <pwd.h> |
37 | #include <grp.h> | |
52826846 | 38 | |
64c4757e NB |
39 | /* |
40 | * Read the config file | |
41 | * | |
42 | * conf_get_uuids gets a list of devicename+uuid pairs | |
43 | * conf_get_devs gets device names after expanding wildcards | |
44 | * | |
45 | * Each keeps the returned list and frees it when asked to make | |
46 | * a new list. | |
47 | * | |
82b27616 NB |
48 | * The format of the config file needs to be fairly extensible. |
49 | * Now, arrays only have names and uuids and devices merely are. | |
50 | * But later arrays might want names, and devices might want superblock | |
51 | * versions, and who knows what else. | |
52 | * I like free format, abhore backslash line continuation, adore | |
53 | * indentation for structure and am ok about # comments. | |
54 | * | |
55 | * So, each line that isn't blank or a #comment must either start | |
56 | * with a key word, and not be indented, or must start with a | |
57 | * non-key-word and must be indented. | |
58 | * | |
31015d57 | 59 | * Keywords are DEVICE and ARRAY ... and several others. |
82b27616 NB |
60 | * DEV{ICE} introduces some devices that might contain raid components. |
61 | * e.g. | |
62 | * DEV style=0 /dev/sda* /dev/hd* | |
63 | * DEV style=1 /dev/sd[b-f]* | |
64 | * ARR{AY} describes an array giving md device and attributes like uuid=whatever | |
65 | * e.g. | |
66 | * ARRAY /dev/md0 uuid=whatever name=something | |
67 | * Spaces separate words on each line. Quoting, with "" or '' protects them, | |
68 | * but may not wrap over lines | |
69 | * | |
64c4757e NB |
70 | */ |
71 | ||
11a3e71d NB |
72 | #ifndef CONFFILE |
73 | #define CONFFILE "/etc/mdadm.conf" | |
74 | #endif | |
ce4fafd6 NB |
75 | #ifndef CONFFILE2 |
76 | /* for Debian compatibility .... */ | |
77 | #define CONFFILE2 "/etc/mdadm/mdadm.conf" | |
78 | #endif | |
11a3e71d | 79 | char DefaultConfFile[] = CONFFILE; |
ce4fafd6 | 80 | char DefaultAltConfFile[] = CONFFILE2; |
64c4757e | 81 | |
31015d57 N |
82 | enum linetype { Devices, Array, Mailaddr, Mailfrom, Program, CreateDev, |
83 | Homehost, AutoMode, LTEnd }; | |
8fe9db0f NB |
84 | char *keywords[] = { |
85 | [Devices] = "devices", | |
86 | [Array] = "array", | |
87 | [Mailaddr] = "mailaddr", | |
88 | [Mailfrom] = "mailfrom", | |
89 | [Program] = "program", | |
8382f19b | 90 | [CreateDev]= "create", |
8fe9db0f | 91 | [Homehost] = "homehost", |
31015d57 | 92 | [AutoMode] = "auto", |
8fe9db0f NB |
93 | [LTEnd] = NULL |
94 | }; | |
82b27616 NB |
95 | |
96 | /* | |
97 | * match_keyword returns an index into the keywords array, or -1 for no match | |
98 | * case is ignored, and at least three characters must be given | |
99 | */ | |
100 | ||
101 | int match_keyword(char *word) | |
102 | { | |
52826846 NB |
103 | int len = strlen(word); |
104 | int n; | |
aba69144 | 105 | |
52826846 NB |
106 | if (len < 3) return -1; |
107 | for (n=0; keywords[n]; n++) { | |
108 | if (strncasecmp(word, keywords[n], len)==0) | |
109 | return n; | |
110 | } | |
111 | return -1; | |
82b27616 NB |
112 | } |
113 | ||
114 | /* conf_word gets one word from the conf file. | |
115 | * if "allow_key", then accept words at the start of a line, | |
116 | * otherwise stop when such a word is found. | |
117 | * We assume that the file pointer is at the end of a word, so the | |
118 | * next character is a space, or a newline. If not, it is the start of a line. | |
119 | */ | |
120 | ||
121 | char *conf_word(FILE *file, int allow_key) | |
122 | { | |
52826846 NB |
123 | int wsize = 100; |
124 | int len = 0; | |
125 | int c; | |
126 | int quote; | |
127 | int wordfound = 0; | |
128 | char *word = malloc(wsize); | |
82b27616 | 129 | |
52826846 NB |
130 | if (!word) abort(); |
131 | ||
132 | while (wordfound==0) { | |
133 | /* at the end of a word.. */ | |
82b27616 | 134 | c = getc(file); |
52826846 NB |
135 | if (c == '#') |
136 | while (c != EOF && c != '\n') | |
137 | c = getc(file); | |
138 | if (c == EOF) break; | |
139 | if (c == '\n') continue; | |
140 | ||
141 | if (c != ' ' && c != '\t' && ! allow_key) { | |
142 | ungetc(c, file); | |
143 | break; | |
144 | } | |
145 | /* looks like it is safe to get a word here, if there is one */ | |
146 | quote = 0; | |
147 | /* first, skip any spaces */ | |
148 | while (c == ' ' || c == '\t') | |
149 | c = getc(file); | |
150 | if (c != EOF && c != '\n' && c != '#') { | |
151 | /* we really have a character of a word, so start saving it */ | |
152 | while (c != EOF && c != '\n' && (quote || (c!=' ' && c != '\t'))) { | |
153 | wordfound = 1; | |
154 | if (quote && c == quote) quote = 0; | |
155 | else if (quote == 0 && (c == '\'' || c == '"')) | |
156 | quote = c; | |
157 | else { | |
158 | if (len == wsize-1) { | |
159 | wsize += 100; | |
160 | word = realloc(word, wsize); | |
161 | if (!word) abort(); | |
162 | } | |
163 | word[len++] = c; | |
164 | } | |
165 | c = getc(file); | |
2cdb6489 NB |
166 | /* Hack for broken kernels (2.6.14-.24) that put |
167 | * "active(auto-read-only)" | |
168 | * in /proc/mdstat instead of | |
169 | * "active (auto-read-only)" | |
170 | */ | |
171 | if (c == '(' && len >= 6 | |
172 | && strncmp(word+len-6, "active", 6) == 0) | |
173 | c = ' '; | |
52826846 NB |
174 | } |
175 | } | |
176 | if (c != EOF) ungetc(c, file); | |
82b27616 | 177 | } |
52826846 | 178 | word[len] = 0; |
2cdb6489 NB |
179 | |
180 | /* Further HACK for broken kernels.. 2.6.14-2.6.24 */ | |
181 | if (strcmp(word, "auto-read-only)") == 0) | |
182 | strcpy(word, "(auto-read-only)"); | |
183 | ||
82b27616 | 184 | /* printf("word is <%s>\n", word); */ |
52826846 NB |
185 | if (!wordfound) { |
186 | free(word); | |
187 | word = NULL; | |
188 | } | |
189 | return word; | |
82b27616 | 190 | } |
aba69144 | 191 | |
82b27616 NB |
192 | /* |
193 | * conf_line reads one logical line from the conffile. | |
194 | * It skips comments and continues until it finds a line that starts | |
195 | * with a non blank/comment. This character is pushed back for the next call | |
196 | * A doubly linked list of words is returned. | |
197 | * the first word will be a keyword. Other words will have had quotes removed. | |
198 | */ | |
199 | ||
200 | char *conf_line(FILE *file) | |
201 | { | |
52826846 NB |
202 | char *w; |
203 | char *list; | |
82b27616 | 204 | |
52826846 NB |
205 | w = conf_word(file, 1); |
206 | if (w == NULL) return NULL; | |
82b27616 | 207 | |
52826846 | 208 | list = dl_strdup(w); |
82b27616 | 209 | free(w); |
52826846 NB |
210 | dl_init(list); |
211 | ||
212 | while ((w = conf_word(file,0))){ | |
213 | char *w2 = dl_strdup(w); | |
214 | free(w); | |
215 | dl_add(list, w2); | |
216 | } | |
82b27616 | 217 | /* printf("got a line\n");*/ |
52826846 | 218 | return list; |
82b27616 NB |
219 | } |
220 | ||
221 | void free_line(char *line) | |
222 | { | |
52826846 NB |
223 | char *w; |
224 | for (w=dl_next(line); w != line; w=dl_next(line)) { | |
225 | dl_del(w); | |
226 | dl_free(w); | |
227 | } | |
228 | dl_free(line); | |
82b27616 NB |
229 | } |
230 | ||
231 | ||
232 | struct conf_dev { | |
233 | struct conf_dev *next; | |
234 | char *name; | |
235 | } *cdevlist = NULL; | |
236 | ||
057bd352 | 237 | mddev_dev_t load_partitions(void) |
5787fa49 NB |
238 | { |
239 | FILE *f = fopen("/proc/partitions", "r"); | |
240 | char buf[1024]; | |
057bd352 | 241 | mddev_dev_t rv = NULL; |
5787fa49 NB |
242 | if (f == NULL) { |
243 | fprintf(stderr, Name ": cannot open /proc/partitions\n"); | |
057bd352 | 244 | return NULL; |
5787fa49 NB |
245 | } |
246 | while (fgets(buf, 1024, f)) { | |
247 | int major, minor; | |
98c6faba | 248 | char *name, *mp; |
8b0dabea NB |
249 | mddev_dev_t d; |
250 | ||
5787fa49 NB |
251 | buf[1023] = '\0'; |
252 | if (buf[0] != ' ') | |
253 | continue; | |
98c6faba | 254 | major = strtoul(buf, &mp, 10); |
aba69144 | 255 | if (mp == buf || *mp != ' ') |
5787fa49 | 256 | continue; |
98c6faba NB |
257 | minor = strtoul(mp, NULL, 10); |
258 | ||
16c6fa80 | 259 | name = map_dev(major, minor, 1); |
e81cdd9f NB |
260 | if (!name) |
261 | continue; | |
8b0dabea NB |
262 | d = malloc(sizeof(*d)); |
263 | d->devname = strdup(name); | |
264 | d->next = rv; | |
da6b5ca9 | 265 | d->used = 0; |
9008ed1c | 266 | d->content = NULL; |
8b0dabea | 267 | rv = d; |
5787fa49 | 268 | } |
dd0781e5 | 269 | fclose(f); |
057bd352 | 270 | return rv; |
5787fa49 | 271 | } |
82b27616 | 272 | |
f64165f7 DW |
273 | mddev_dev_t load_containers(void) |
274 | { | |
275 | struct mdstat_ent *mdstat = mdstat_read(1, 0); | |
276 | struct mdstat_ent *ent; | |
277 | mddev_dev_t d; | |
278 | mddev_dev_t rv = NULL; | |
279 | ||
280 | if (!mdstat) | |
281 | return NULL; | |
282 | ||
283 | for (ent = mdstat; ent; ent = ent->next) | |
284 | if (ent->metadata_version && | |
285 | strncmp(ent->metadata_version, "external:", 9) == 0 && | |
286 | !is_subarray(&ent->metadata_version[9])) { | |
287 | d = malloc(sizeof(*d)); | |
288 | if (!d) | |
289 | continue; | |
290 | if (asprintf(&d->devname, "/dev/%s", ent->dev) < 0) { | |
291 | free(d); | |
292 | continue; | |
293 | } | |
294 | d->next = rv; | |
295 | d->used = 0; | |
9008ed1c | 296 | d->content = NULL; |
f64165f7 DW |
297 | rv = d; |
298 | } | |
299 | free_mdstat(mdstat); | |
300 | ||
301 | return rv; | |
302 | } | |
303 | ||
5bbb4842 | 304 | struct createinfo createinfo = { |
75723446 | 305 | .autof = 2, /* by default, create devices with standard names */ |
38098016 | 306 | .symlinks = 1, |
5bbb4842 NB |
307 | #ifdef DEBIAN |
308 | .gid = 6, /* disk */ | |
309 | .mode = 0660, | |
310 | #else | |
311 | .mode = 0600, | |
312 | #endif | |
313 | }; | |
314 | ||
f1ae21c4 | 315 | int parse_auto(char *str, char *msg, int config) |
5bbb4842 NB |
316 | { |
317 | int autof; | |
318 | if (str == NULL || *str == 0) | |
f1ae21c4 | 319 | autof = 2; |
5bbb4842 | 320 | else if (strcasecmp(str,"no")==0) |
f1ae21c4 | 321 | autof = 1; |
5bbb4842 | 322 | else if (strcasecmp(str,"yes")==0) |
f1ae21c4 | 323 | autof = 2; |
5bbb4842 | 324 | else if (strcasecmp(str,"md")==0) |
f1ae21c4 | 325 | autof = config?5:3; |
5bbb4842 NB |
326 | else { |
327 | /* There might be digits, and maybe a hypen, at the end */ | |
328 | char *e = str + strlen(str); | |
329 | int num = 4; | |
330 | int len; | |
331 | while (e > str && isdigit(e[-1])) | |
332 | e--; | |
333 | if (*e) { | |
334 | num = atoi(e); | |
335 | if (num <= 0) num = 1; | |
336 | } | |
337 | if (e > str && e[-1] == '-') | |
338 | e--; | |
339 | len = e - str; | |
f1ae21c4 NB |
340 | if ((len == 2 && strncasecmp(str,"md",2)==0)) { |
341 | autof = config ? 5 : 3; | |
6ba83b5f NB |
342 | } else if ((len == 3 && strncasecmp(str,"yes",3)==0)) { |
343 | autof = 2; | |
f1ae21c4 NB |
344 | } else if ((len == 3 && strncasecmp(str,"mdp",3)==0)) { |
345 | autof = config ? 6 : 4; | |
346 | } else if ((len == 1 && strncasecmp(str,"p",1)==0) || | |
347 | (len >= 4 && strncasecmp(str,"part",4)==0)) { | |
348 | autof = 6; | |
349 | } else { | |
5bbb4842 NB |
350 | fprintf(stderr, Name ": %s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" |
351 | " optionally followed by a number.\n", | |
352 | msg, str); | |
353 | exit(2); | |
354 | } | |
f1ae21c4 | 355 | autof |= num << 3; |
5bbb4842 NB |
356 | } |
357 | return autof; | |
358 | } | |
f1ae21c4 | 359 | |
5bbb4842 NB |
360 | static void createline(char *line) |
361 | { | |
362 | char *w; | |
363 | char *ep; | |
364 | ||
365 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
366 | if (strncasecmp(w, "auto=", 5) == 0) | |
f1ae21c4 | 367 | createinfo.autof = parse_auto(w+5, "auto=", 1); |
5bbb4842 NB |
368 | else if (strncasecmp(w, "owner=", 6) == 0) { |
369 | if (w[6] == 0) { | |
370 | fprintf(stderr, Name ": missing owner name\n"); | |
371 | continue; | |
372 | } | |
373 | createinfo.uid = strtoul(w+6, &ep, 10); | |
374 | if (*ep != 0) { | |
5bbb4842 NB |
375 | struct passwd *pw; |
376 | /* must be a name */ | |
377 | pw = getpwnam(w+6); | |
378 | if (pw) | |
379 | createinfo.uid = pw->pw_uid; | |
380 | else | |
5bbb4842 NB |
381 | fprintf(stderr, Name ": CREATE user %s not found\n", w+6); |
382 | } | |
383 | } else if (strncasecmp(w, "group=", 6) == 0) { | |
384 | if (w[6] == 0) { | |
385 | fprintf(stderr, Name ": missing group name\n"); | |
386 | continue; | |
387 | } | |
388 | createinfo.gid = strtoul(w+6, &ep, 10); | |
389 | if (*ep != 0) { | |
5bbb4842 NB |
390 | struct group *gr; |
391 | /* must be a name */ | |
392 | gr = getgrnam(w+6); | |
393 | if (gr) | |
394 | createinfo.gid = gr->gr_gid; | |
395 | else | |
5bbb4842 NB |
396 | fprintf(stderr, Name ": CREATE group %s not found\n", w+6); |
397 | } | |
398 | } else if (strncasecmp(w, "mode=", 5) == 0) { | |
399 | if (w[5] == 0) { | |
400 | fprintf(stderr, Name ": missing CREATE mode\n"); | |
401 | continue; | |
402 | } | |
403 | createinfo.mode = strtoul(w+5, &ep, 8); | |
404 | if (*ep != 0) { | |
405 | createinfo.mode = 0600; | |
406 | fprintf(stderr, Name ": unrecognised CREATE mode %s\n", | |
407 | w+5); | |
408 | } | |
058574b1 NB |
409 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
410 | /* style of metadata to use by default */ | |
411 | int i; | |
412 | for (i=0; superlist[i] && !createinfo.supertype; i++) | |
413 | createinfo.supertype = | |
414 | superlist[i]->match_metadata_desc(w+9); | |
415 | if (!createinfo.supertype) | |
416 | fprintf(stderr, Name ": metadata format %s unknown, ignoring\n", | |
417 | w+9); | |
38098016 NB |
418 | } else if (strncasecmp(w, "symlinks=yes", 12) == 0) |
419 | createinfo.symlinks = 1; | |
420 | else if (strncasecmp(w, "symlinks=no", 11) == 0) | |
421 | createinfo.symlinks = 0; | |
422 | else { | |
5bbb4842 NB |
423 | fprintf(stderr, Name ": unrecognised word on CREATE line: %s\n", |
424 | w); | |
425 | } | |
426 | } | |
427 | } | |
82b27616 | 428 | |
aba69144 | 429 | void devline(char *line) |
82b27616 | 430 | { |
52826846 NB |
431 | char *w; |
432 | struct conf_dev *cd; | |
433 | ||
434 | for (w=dl_next(line); w != line; w=dl_next(w)) { | |
f64165f7 DW |
435 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0 || |
436 | strcasecmp(w, "containers") == 0) { | |
52826846 NB |
437 | cd = malloc(sizeof(*cd)); |
438 | cd->name = strdup(w); | |
439 | cd->next = cdevlist; | |
440 | cdevlist = cd; | |
441 | } else { | |
442 | fprintf(stderr, Name ": unreconised word on DEVICE line: %s\n", | |
443 | w); | |
444 | } | |
82b27616 | 445 | } |
82b27616 NB |
446 | } |
447 | ||
52826846 NB |
448 | mddev_ident_t mddevlist = NULL; |
449 | mddev_ident_t *mddevlp = &mddevlist; | |
82b27616 | 450 | |
db2d001c N |
451 | static int is_number(char *w) |
452 | { | |
453 | /* check if there are 1 or more digits and nothing else */ | |
454 | int digits = 0; | |
455 | while (*w && isdigit(*w)) { | |
456 | digits++; | |
457 | w++; | |
458 | } | |
459 | return (digits && ! *w); | |
460 | } | |
461 | ||
82b27616 NB |
462 | void arrayline(char *line) |
463 | { | |
52826846 NB |
464 | char *w; |
465 | ||
466 | struct mddev_ident_s mis; | |
467 | mddev_ident_t mi; | |
468 | ||
469 | mis.uuid_set = 0; | |
98c6faba NB |
470 | mis.super_minor = UnSet; |
471 | mis.level = UnSet; | |
472 | mis.raid_disks = UnSet; | |
4ccdb956 | 473 | mis.spare_disks = 0; |
52826846 NB |
474 | mis.devices = NULL; |
475 | mis.devname = NULL; | |
e0d19036 | 476 | mis.spare_group = NULL; |
dd0781e5 | 477 | mis.autof = 0; |
92919398 | 478 | mis.next = NULL; |
f277ce36 NB |
479 | mis.st = NULL; |
480 | mis.bitmap_fd = -1; | |
7ef02d01 | 481 | mis.bitmap_file = NULL; |
947fd4dd | 482 | mis.name[0] = 0; |
71d60c48 DW |
483 | mis.container = NULL; |
484 | mis.member = NULL; | |
52826846 NB |
485 | |
486 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
db2d001c N |
487 | if (w[0] == '/' || strchr(w, '=') == NULL) { |
488 | /* This names the device, or is '<ignore>'. | |
489 | * The rules match those in create_mddev. | |
490 | * 'w' must be: | |
491 | * /dev/md/{anything} | |
492 | * /dev/mdNN | |
493 | * /dev/md_dNN | |
494 | * <ignore> | |
495 | * or anything that doesn't start '/' or '<' | |
496 | */ | |
497 | if (strcasecmp(w, "<ignore>") == 0 || | |
498 | strncmp(w, "/dev/md/", 8) == 0 || | |
499 | (w[0] != '/' && w[0] != '<') || | |
500 | (strncmp(w, "/dev/md", 7) == 0 && | |
501 | is_number(w+7)) || | |
502 | (strncmp(w, "/dev/md_d", 9) == 0 && | |
503 | is_number(w+9)) | |
504 | ) { | |
505 | /* This is acceptable */; | |
506 | if (mis.devname) | |
507 | fprintf(stderr, Name ": only give one " | |
508 | "device per ARRAY line: %s and %s\n", | |
509 | mis.devname, w); | |
510 | else | |
511 | mis.devname = w; | |
512 | }else { | |
513 | fprintf(stderr, Name ": %s is an invalid name for " | |
514 | "an md device - ignored.\n", w); | |
515 | } | |
52826846 NB |
516 | } else if (strncasecmp(w, "uuid=", 5)==0 ) { |
517 | if (mis.uuid_set) | |
518 | fprintf(stderr, Name ": only specify uuid once, %s ignored.\n", | |
519 | w); | |
520 | else { | |
521 | if (parse_uuid(w+5, mis.uuid)) | |
522 | mis.uuid_set = 1; | |
523 | else | |
524 | fprintf(stderr, Name ": bad uuid: %s\n", w); | |
525 | } | |
526 | } else if (strncasecmp(w, "super-minor=", 12)==0 ) { | |
f277ce36 | 527 | if (mis.super_minor != UnSet) |
52826846 NB |
528 | fprintf(stderr, Name ": only specify super-minor once, %s ignored.\n", |
529 | w); | |
530 | else { | |
531 | char *endptr; | |
532 | mis.super_minor= strtol(w+12, &endptr, 10); | |
533 | if (w[12]==0 || endptr[0]!=0 || mis.super_minor < 0) { | |
534 | fprintf(stderr, Name ": invalid super-minor number: %s\n", | |
535 | w); | |
98c6faba | 536 | mis.super_minor = UnSet; |
52826846 NB |
537 | } |
538 | } | |
947fd4dd NB |
539 | } else if (strncasecmp(w, "name=", 5)==0) { |
540 | if (mis.name[0]) | |
541 | fprintf(stderr, Name ": only specify name once, %s ignored.\n", | |
542 | w); | |
543 | else if (strlen(w+5) > 32) | |
544 | fprintf(stderr, Name ": name too long, ignoring %s\n", w); | |
545 | else | |
546 | strcpy(mis.name, w+5); | |
547 | ||
7ef02d01 NB |
548 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { |
549 | if (mis.bitmap_file) | |
550 | fprintf(stderr, Name ": only specify bitmap file once. %s ignored\n", | |
551 | w); | |
552 | else | |
d87d0978 | 553 | mis.bitmap_file = strdup(w+7); |
7ef02d01 | 554 | |
52826846 NB |
555 | } else if (strncasecmp(w, "devices=", 8 ) == 0 ) { |
556 | if (mis.devices) | |
557 | fprintf(stderr, Name ": only specify devices once (use a comma separated list). %s ignored\n", | |
558 | w); | |
559 | else | |
560 | mis.devices = strdup(w+8); | |
561 | } else if (strncasecmp(w, "spare-group=", 12) == 0 ) { | |
562 | if (mis.spare_group) | |
563 | fprintf(stderr, Name ": only specify one spare group per array. %s ignored.\n", | |
564 | w); | |
565 | else | |
566 | mis.spare_group = strdup(w+12); | |
cd29a5c8 NB |
567 | } else if (strncasecmp(w, "level=", 6) == 0 ) { |
568 | /* this is mainly for compatability with --brief output */ | |
569 | mis.level = map_name(pers, w+6); | |
570 | } else if (strncasecmp(w, "disks=", 6) == 0 ) { | |
571 | /* again, for compat */ | |
feb716e9 | 572 | mis.raid_disks = atoi(w+6); |
b83d95f3 NB |
573 | } else if (strncasecmp(w, "num-devices=", 12) == 0 ) { |
574 | /* again, for compat */ | |
feb716e9 NB |
575 | mis.raid_disks = atoi(w+12); |
576 | } else if (strncasecmp(w, "spares=", 7) == 0 ) { | |
577 | /* for warning if not all spares present */ | |
578 | mis.spare_disks = atoi(w+7); | |
f9ce90ba NB |
579 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
580 | /* style of metadata on the devices. */ | |
581 | int i; | |
aba69144 | 582 | |
82d9eba6 NB |
583 | for(i=0; superlist[i] && !mis.st; i++) |
584 | mis.st = superlist[i]->match_metadata_desc(w+9); | |
585 | ||
586 | if (!mis.st) | |
f9ce90ba | 587 | fprintf(stderr, Name ": metadata format %s unknown, ignored.\n", w+9); |
dd0781e5 NB |
588 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { |
589 | /* whether to create device special files as needed */ | |
f1ae21c4 | 590 | mis.autof = parse_auto(w+5, "auto type", 0); |
dbb44303 N |
591 | } else if (strncasecmp(w, "member=", 7) == 0) { |
592 | /* subarray within a container */ | |
593 | mis.member = strdup(w+7); | |
594 | } else if (strncasecmp(w, "container=", 10) == 0) { | |
1771a6e2 N |
595 | /* the container holding this subarray. Either a device name |
596 | * or a uuid */ | |
dbb44303 | 597 | mis.container = strdup(w+10); |
52826846 NB |
598 | } else { |
599 | fprintf(stderr, Name ": unrecognised word on ARRAY line: %s\n", | |
600 | w); | |
601 | } | |
602 | } | |
b1b12d58 N |
603 | if (mis.uuid_set == 0 && mis.devices == NULL && |
604 | mis.super_minor == UnSet && mis.name[0] == 0 && | |
aa7c284c | 605 | (mis.container == NULL || mis.member == NULL)) |
52826846 NB |
606 | fprintf(stderr, Name ": ARRAY line %s has no identity information.\n", mis.devname); |
607 | else { | |
608 | mi = malloc(sizeof(*mi)); | |
609 | *mi = mis; | |
fe056d1f | 610 | mi->devname = mis.devname ? strdup(mis.devname) : NULL; |
52826846 NB |
611 | mi->next = NULL; |
612 | *mddevlp = mi; | |
613 | mddevlp = &mi->next; | |
82b27616 | 614 | } |
82b27616 | 615 | } |
e0d19036 NB |
616 | |
617 | static char *alert_email = NULL; | |
618 | void mailline(char *line) | |
619 | { | |
620 | char *w; | |
621 | ||
622 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
623 | if (alert_email == NULL) | |
624 | alert_email = strdup(w); | |
625 | else | |
626 | fprintf(stderr, Name ": excess address on MAIL line: %s - ignored\n", | |
627 | w); | |
628 | } | |
629 | } | |
630 | ||
4948b8f7 NB |
631 | static char *alert_mail_from = NULL; |
632 | void mailfromline(char *line) | |
633 | { | |
634 | char *w; | |
635 | ||
636 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
637 | if (alert_mail_from == NULL) | |
638 | alert_mail_from = strdup(w); | |
639 | else { | |
3d2c4fc7 DW |
640 | char *t = NULL; |
641 | ||
78fbcc10 | 642 | if (xasprintf(&t, "%s %s", alert_mail_from, w) > 0) { |
3d2c4fc7 DW |
643 | free(alert_mail_from); |
644 | alert_mail_from = t; | |
645 | } | |
4948b8f7 NB |
646 | } |
647 | } | |
648 | } | |
649 | ||
e0d19036 NB |
650 | |
651 | static char *alert_program = NULL; | |
652 | void programline(char *line) | |
653 | { | |
654 | char *w; | |
655 | ||
656 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
657 | if (alert_program == NULL) | |
658 | alert_program = strdup(w); | |
659 | else | |
660 | fprintf(stderr, Name ": excess program on PROGRAM line: %s - ignored\n", | |
661 | w); | |
662 | } | |
663 | } | |
664 | ||
997aed5d NB |
665 | static char *home_host = NULL; |
666 | void homehostline(char *line) | |
667 | { | |
668 | char *w; | |
669 | ||
670 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
671 | if (home_host == NULL) | |
672 | home_host = strdup(w); | |
673 | else | |
674 | fprintf(stderr, Name ": excess host name on HOMEHOST line: %s - ignored\n", | |
675 | w); | |
676 | } | |
677 | } | |
678 | ||
31015d57 N |
679 | static char *auto_options = NULL; |
680 | void autoline(char *line) | |
681 | { | |
682 | if (auto_options) { | |
683 | fprintf(stderr, Name ": AUTO line may only be give once." | |
684 | " Subsequent lines ignored\n"); | |
685 | return; | |
686 | } | |
687 | auto_options = line; | |
688 | } | |
e0d19036 | 689 | |
82b27616 NB |
690 | int loaded = 0; |
691 | ||
8aec876d NB |
692 | static char *conffile = NULL; |
693 | void set_conffile(char *file) | |
694 | { | |
695 | conffile = file; | |
696 | } | |
697 | ||
698 | void load_conffile(void) | |
82b27616 | 699 | { |
52826846 NB |
700 | FILE *f; |
701 | char *line; | |
702 | ||
703 | if (loaded) return; | |
704 | if (conffile == NULL) | |
705 | conffile = DefaultConfFile; | |
706 | ||
d013a55e NB |
707 | if (strcmp(conffile, "none") == 0) { |
708 | loaded = 1; | |
709 | return; | |
710 | } | |
5787fa49 | 711 | if (strcmp(conffile, "partitions")==0) { |
b5687415 NB |
712 | char *list = dl_strdup("DEV"); |
713 | dl_init(list); | |
714 | dl_add(list, dl_strdup("partitions")); | |
715 | devline(list); | |
716 | free_line(list); | |
d013a55e | 717 | loaded = 1; |
5787fa49 NB |
718 | return; |
719 | } | |
52826846 | 720 | f = fopen(conffile, "r"); |
ce4fafd6 NB |
721 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. |
722 | * To allow Debian users to compile from clean source and still | |
723 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
724 | * if /etc/mdadm.conf doesn't exist | |
725 | */ | |
726 | if (f == NULL && | |
727 | conffile == DefaultConfFile) { | |
728 | f = fopen(DefaultAltConfFile, "r"); | |
729 | if (f) | |
730 | conffile = DefaultAltConfFile; | |
731 | } | |
732 | if (f == NULL) | |
52826846 NB |
733 | return; |
734 | ||
735 | loaded = 1; | |
736 | while ((line=conf_line(f))) { | |
737 | switch(match_keyword(line)) { | |
8fe9db0f | 738 | case Devices: |
52826846 NB |
739 | devline(line); |
740 | break; | |
8fe9db0f | 741 | case Array: |
52826846 NB |
742 | arrayline(line); |
743 | break; | |
8fe9db0f | 744 | case Mailaddr: |
e0d19036 NB |
745 | mailline(line); |
746 | break; | |
8fe9db0f | 747 | case Mailfrom: |
4948b8f7 NB |
748 | mailfromline(line); |
749 | break; | |
8fe9db0f NB |
750 | case Program: |
751 | programline(line); | |
752 | break; | |
753 | case CreateDev: | |
5bbb4842 NB |
754 | createline(line); |
755 | break; | |
997aed5d NB |
756 | case Homehost: |
757 | homehostline(line); | |
758 | break; | |
31015d57 N |
759 | case AutoMode: |
760 | autoline(line); | |
761 | break; | |
52826846 NB |
762 | default: |
763 | fprintf(stderr, Name ": Unknown keyword %s\n", line); | |
764 | } | |
765 | free_line(line); | |
82b27616 | 766 | } |
aba69144 | 767 | |
dd0781e5 | 768 | fclose(f); |
82b27616 NB |
769 | |
770 | /* printf("got file\n"); */ | |
771 | } | |
772 | ||
8aec876d | 773 | char *conf_get_mailaddr(void) |
e0d19036 | 774 | { |
8aec876d | 775 | load_conffile(); |
e0d19036 NB |
776 | return alert_email; |
777 | } | |
778 | ||
8aec876d | 779 | char *conf_get_mailfrom(void) |
4948b8f7 | 780 | { |
8aec876d | 781 | load_conffile(); |
4948b8f7 NB |
782 | return alert_mail_from; |
783 | } | |
784 | ||
8aec876d | 785 | char *conf_get_program(void) |
e0d19036 | 786 | { |
8aec876d | 787 | load_conffile(); |
e0d19036 NB |
788 | return alert_program; |
789 | } | |
790 | ||
8aec876d | 791 | char *conf_get_homehost(void) |
997aed5d | 792 | { |
8aec876d | 793 | load_conffile(); |
997aed5d NB |
794 | return home_host; |
795 | } | |
796 | ||
8aec876d | 797 | struct createinfo *conf_get_create_info(void) |
5bbb4842 | 798 | { |
8aec876d | 799 | load_conffile(); |
5bbb4842 NB |
800 | return &createinfo; |
801 | } | |
82b27616 | 802 | |
8aec876d | 803 | mddev_ident_t conf_get_ident(char *dev) |
64c4757e | 804 | { |
52826846 | 805 | mddev_ident_t rv; |
8aec876d | 806 | load_conffile(); |
52826846 | 807 | rv = mddevlist; |
fe056d1f N |
808 | while (dev && rv && (rv->devname == NULL |
809 | || strcmp(dev, rv->devname)!=0)) | |
52826846 NB |
810 | rv = rv->next; |
811 | return rv; | |
64c4757e NB |
812 | } |
813 | ||
f64165f7 DW |
814 | static void append_dlist(mddev_dev_t *dlp, mddev_dev_t list) |
815 | { | |
816 | while (*dlp) | |
817 | dlp = &(*dlp)->next; | |
818 | *dlp = list; | |
819 | } | |
820 | ||
8aec876d | 821 | mddev_dev_t conf_get_devs() |
64c4757e | 822 | { |
52826846 NB |
823 | glob_t globbuf; |
824 | struct conf_dev *cd; | |
825 | int flags = 0; | |
826 | static mddev_dev_t dlist = NULL; | |
98c6faba | 827 | unsigned int i; |
52826846 NB |
828 | |
829 | while (dlist) { | |
830 | mddev_dev_t t = dlist; | |
831 | dlist = dlist->next; | |
832 | free(t->devname); | |
833 | free(t); | |
834 | } | |
aba69144 | 835 | |
8aec876d | 836 | load_conffile(); |
a99d6b66 | 837 | |
f8f84cd5 DW |
838 | if (cdevlist == NULL) { |
839 | /* default to 'partitions' and 'containers' */ | |
a99d6b66 | 840 | dlist = load_partitions(); |
f8f84cd5 DW |
841 | append_dlist(&dlist, load_containers()); |
842 | } | |
a99d6b66 | 843 | |
52826846 | 844 | for (cd=cdevlist; cd; cd=cd->next) { |
f64165f7 DW |
845 | if (strcasecmp(cd->name, "partitions")==0) |
846 | append_dlist(&dlist, load_partitions()); | |
847 | else if (strcasecmp(cd->name, "containers")==0) | |
848 | append_dlist(&dlist, load_containers()); | |
057bd352 NB |
849 | else { |
850 | glob(cd->name, flags, NULL, &globbuf); | |
851 | flags |= GLOB_APPEND; | |
852 | } | |
52826846 | 853 | } |
e0d19036 NB |
854 | if (flags & GLOB_APPEND) { |
855 | for (i=0; i<globbuf.gl_pathc; i++) { | |
856 | mddev_dev_t t = malloc(sizeof(*t)); | |
857 | t->devname = strdup(globbuf.gl_pathv[i]); | |
858 | t->next = dlist; | |
da6b5ca9 | 859 | t->used = 0; |
9008ed1c | 860 | t->content = NULL; |
e0d19036 | 861 | dlist = t; |
82b27616 | 862 | /* printf("one dev is %s\n", t->devname);*/ |
e0d19036 NB |
863 | } |
864 | globfree(&globbuf); | |
52826846 | 865 | } |
82b27616 | 866 | |
52826846 | 867 | return dlist; |
64c4757e NB |
868 | } |
869 | ||
8382f19b NB |
870 | int conf_test_dev(char *devname) |
871 | { | |
872 | struct conf_dev *cd; | |
873 | if (cdevlist == NULL) | |
874 | /* allow anything by default */ | |
875 | return 1; | |
876 | for (cd = cdevlist ; cd ; cd = cd->next) { | |
877 | if (strcasecmp(cd->name, "partitions") == 0) | |
878 | return 1; | |
879 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
880 | return 1; | |
881 | } | |
882 | return 0; | |
883 | } | |
884 | ||
31015d57 N |
885 | int conf_test_metadata(const char *version) |
886 | { | |
887 | /* Check if the given metadata version is allowed | |
888 | * to be auto-assembled. | |
889 | * The default is 'yes' but the 'auto' line might over-ride that. | |
890 | * Word in auto_options are processed in order with the first | |
891 | * match winning. | |
892 | * word can be: | |
893 | * +version - that version can be assembled | |
894 | * -version - that version cannot be auto-assembled | |
895 | * yes or +all - any other version can be assembled | |
896 | * no or -all - no other version can be assembled. | |
897 | */ | |
898 | char *w; | |
899 | load_conffile(); | |
900 | if (!auto_options) | |
901 | return 1; | |
902 | for (w = dl_next(auto_options); w != auto_options; w = dl_next(w)) { | |
903 | int rv; | |
904 | if (strcasecmp(w, "yes") == 0) | |
905 | return 1; | |
906 | if (strcasecmp(w, "no") == 0) | |
907 | return 0; | |
908 | if (w[0] == '+') | |
909 | rv = 1; | |
910 | else if (w[0] == '-') | |
911 | rv = 0; | |
912 | else continue; | |
913 | ||
914 | if (strcasecmp(w+1, "all") == 0) | |
915 | return rv; | |
916 | if (strcasecmp(w+1, version) == 0) | |
917 | return rv; | |
918 | /* allow '0' to match version '0.90' | |
919 | * and 1 or 1.whatever to match version '1.x' | |
920 | */ | |
921 | if (version[1] == '.' && | |
922 | strlen(w+1) == 1 && | |
923 | w[1] == version[0]) | |
924 | return rv; | |
925 | if (version[1] == '.' && version[2] == 'x' && | |
926 | strncmp(w+1, version, 2) == 0) | |
927 | return rv; | |
928 | } | |
929 | return 1; | |
930 | } | |
8382f19b | 931 | |
52826846 NB |
932 | int match_oneof(char *devices, char *devname) |
933 | { | |
934 | /* check if one of the comma separated patterns in devices | |
935 | * matches devname | |
936 | */ | |
937 | ||
938 | ||
939 | while (devices && *devices) { | |
940 | char patn[1024]; | |
941 | char *p = devices; | |
942 | devices = strchr(devices, ','); | |
943 | if (!devices) | |
944 | devices = p + strlen(p); | |
945 | if (devices-p < 1024) { | |
946 | strncpy(patn, p, devices-p); | |
947 | patn[devices-p] = 0; | |
948 | if (fnmatch(patn, devname, FNM_PATHNAME)==0) | |
949 | return 1; | |
950 | } | |
951 | if (*devices == ',') | |
952 | devices++; | |
953 | } | |
954 | return 0; | |
955 | } |