]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * mdadm - manage Linux "md" devices aka RAID arrays. | |
3 | * | |
4 | * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de> | |
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 | ||
30 | #include "mdadm.h" | |
31 | #include "dlink.h" | |
32 | #include <dirent.h> | |
33 | #include <glob.h> | |
34 | #include <fnmatch.h> | |
35 | #include <ctype.h> | |
36 | #include <pwd.h> | |
37 | #include <grp.h> | |
38 | ||
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 | * | |
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 | * | |
59 | * Keywords are DEVICE and ARRAY | |
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 | * | |
70 | */ | |
71 | ||
72 | #ifndef CONFFILE | |
73 | #define CONFFILE "/etc/mdadm.conf" | |
74 | #endif | |
75 | #ifndef CONFFILE2 | |
76 | /* for Debian compatibility .... */ | |
77 | #define CONFFILE2 "/etc/mdadm/mdadm.conf" | |
78 | #endif | |
79 | char DefaultConfFile[] = CONFFILE; | |
80 | char DefaultAltConfFile[] = CONFFILE2; | |
81 | ||
82 | enum linetype { Devices, Array, Mailaddr, Mailfrom, Program, CreateDev, Homehost, LTEnd }; | |
83 | char *keywords[] = { | |
84 | [Devices] = "devices", | |
85 | [Array] = "array", | |
86 | [Mailaddr] = "mailaddr", | |
87 | [Mailfrom] = "mailfrom", | |
88 | [Program] = "program", | |
89 | [CreateDev]= "create", | |
90 | [Homehost] = "homehost", | |
91 | [LTEnd] = NULL | |
92 | }; | |
93 | ||
94 | /* | |
95 | * match_keyword returns an index into the keywords array, or -1 for no match | |
96 | * case is ignored, and at least three characters must be given | |
97 | */ | |
98 | ||
99 | int match_keyword(char *word) | |
100 | { | |
101 | int len = strlen(word); | |
102 | int n; | |
103 | ||
104 | if (len < 3) return -1; | |
105 | for (n=0; keywords[n]; n++) { | |
106 | if (strncasecmp(word, keywords[n], len)==0) | |
107 | return n; | |
108 | } | |
109 | return -1; | |
110 | } | |
111 | ||
112 | /* conf_word gets one word from the conf file. | |
113 | * if "allow_key", then accept words at the start of a line, | |
114 | * otherwise stop when such a word is found. | |
115 | * We assume that the file pointer is at the end of a word, so the | |
116 | * next character is a space, or a newline. If not, it is the start of a line. | |
117 | */ | |
118 | ||
119 | char *conf_word(FILE *file, int allow_key) | |
120 | { | |
121 | int wsize = 100; | |
122 | int len = 0; | |
123 | int c; | |
124 | int quote; | |
125 | int wordfound = 0; | |
126 | char *word = malloc(wsize); | |
127 | ||
128 | if (!word) abort(); | |
129 | ||
130 | while (wordfound==0) { | |
131 | /* at the end of a word.. */ | |
132 | c = getc(file); | |
133 | if (c == '#') | |
134 | while (c != EOF && c != '\n') | |
135 | c = getc(file); | |
136 | if (c == EOF) break; | |
137 | if (c == '\n') continue; | |
138 | ||
139 | if (c != ' ' && c != '\t' && ! allow_key) { | |
140 | ungetc(c, file); | |
141 | break; | |
142 | } | |
143 | /* looks like it is safe to get a word here, if there is one */ | |
144 | quote = 0; | |
145 | /* first, skip any spaces */ | |
146 | while (c == ' ' || c == '\t') | |
147 | c = getc(file); | |
148 | if (c != EOF && c != '\n' && c != '#') { | |
149 | /* we really have a character of a word, so start saving it */ | |
150 | while (c != EOF && c != '\n' && (quote || (c!=' ' && c != '\t'))) { | |
151 | wordfound = 1; | |
152 | if (quote && c == quote) quote = 0; | |
153 | else if (quote == 0 && (c == '\'' || c == '"')) | |
154 | quote = c; | |
155 | else { | |
156 | if (len == wsize-1) { | |
157 | wsize += 100; | |
158 | word = realloc(word, wsize); | |
159 | if (!word) abort(); | |
160 | } | |
161 | word[len++] = c; | |
162 | } | |
163 | c = getc(file); | |
164 | } | |
165 | } | |
166 | if (c != EOF) ungetc(c, file); | |
167 | } | |
168 | word[len] = 0; | |
169 | /* printf("word is <%s>\n", word); */ | |
170 | if (!wordfound) { | |
171 | free(word); | |
172 | word = NULL; | |
173 | } | |
174 | return word; | |
175 | } | |
176 | ||
177 | /* | |
178 | * conf_line reads one logical line from the conffile. | |
179 | * It skips comments and continues until it finds a line that starts | |
180 | * with a non blank/comment. This character is pushed back for the next call | |
181 | * A doubly linked list of words is returned. | |
182 | * the first word will be a keyword. Other words will have had quotes removed. | |
183 | */ | |
184 | ||
185 | char *conf_line(FILE *file) | |
186 | { | |
187 | char *w; | |
188 | char *list; | |
189 | ||
190 | w = conf_word(file, 1); | |
191 | if (w == NULL) return NULL; | |
192 | ||
193 | list = dl_strdup(w); | |
194 | free(w); | |
195 | dl_init(list); | |
196 | ||
197 | while ((w = conf_word(file,0))){ | |
198 | char *w2 = dl_strdup(w); | |
199 | free(w); | |
200 | dl_add(list, w2); | |
201 | } | |
202 | /* printf("got a line\n");*/ | |
203 | return list; | |
204 | } | |
205 | ||
206 | void free_line(char *line) | |
207 | { | |
208 | char *w; | |
209 | for (w=dl_next(line); w != line; w=dl_next(line)) { | |
210 | dl_del(w); | |
211 | dl_free(w); | |
212 | } | |
213 | dl_free(line); | |
214 | } | |
215 | ||
216 | ||
217 | struct conf_dev { | |
218 | struct conf_dev *next; | |
219 | char *name; | |
220 | } *cdevlist = NULL; | |
221 | ||
222 | mddev_dev_t load_partitions(void) | |
223 | { | |
224 | FILE *f = fopen("/proc/partitions", "r"); | |
225 | char buf[1024]; | |
226 | mddev_dev_t rv = NULL; | |
227 | if (f == NULL) { | |
228 | fprintf(stderr, Name ": cannot open /proc/partitions\n"); | |
229 | return NULL; | |
230 | } | |
231 | while (fgets(buf, 1024, f)) { | |
232 | int major, minor; | |
233 | char *name, *mp; | |
234 | mddev_dev_t d; | |
235 | ||
236 | buf[1023] = '\0'; | |
237 | if (buf[0] != ' ') | |
238 | continue; | |
239 | major = strtoul(buf, &mp, 10); | |
240 | if (mp == buf || *mp != ' ') | |
241 | continue; | |
242 | minor = strtoul(mp, NULL, 10); | |
243 | ||
244 | name = map_dev(major, minor, 1); | |
245 | if (!name) | |
246 | continue; | |
247 | d = malloc(sizeof(*d)); | |
248 | d->devname = strdup(name); | |
249 | d->next = rv; | |
250 | d->used = 0; | |
251 | rv = d; | |
252 | } | |
253 | fclose(f); | |
254 | return rv; | |
255 | } | |
256 | ||
257 | struct createinfo createinfo = { | |
258 | .autof = 2, /* by default, create devices with standard names */ | |
259 | .symlinks = 1, | |
260 | #ifdef DEBIAN | |
261 | .gid = 6, /* disk */ | |
262 | .mode = 0660, | |
263 | #else | |
264 | .mode = 0600, | |
265 | #endif | |
266 | }; | |
267 | ||
268 | int parse_auto(char *str, char *msg, int config) | |
269 | { | |
270 | int autof; | |
271 | if (str == NULL || *str == 0) | |
272 | autof = 2; | |
273 | else if (strcasecmp(str,"no")==0) | |
274 | autof = 1; | |
275 | else if (strcasecmp(str,"yes")==0) | |
276 | autof = 2; | |
277 | else if (strcasecmp(str,"md")==0) | |
278 | autof = config?5:3; | |
279 | else { | |
280 | /* There might be digits, and maybe a hypen, at the end */ | |
281 | char *e = str + strlen(str); | |
282 | int num = 4; | |
283 | int len; | |
284 | while (e > str && isdigit(e[-1])) | |
285 | e--; | |
286 | if (*e) { | |
287 | num = atoi(e); | |
288 | if (num <= 0) num = 1; | |
289 | } | |
290 | if (e > str && e[-1] == '-') | |
291 | e--; | |
292 | len = e - str; | |
293 | if ((len == 2 && strncasecmp(str,"md",2)==0)) { | |
294 | autof = config ? 5 : 3; | |
295 | } else if ((len == 3 && strncasecmp(str,"yes",3)==0)) { | |
296 | autof = 2; | |
297 | } else if ((len == 3 && strncasecmp(str,"mdp",3)==0)) { | |
298 | autof = config ? 6 : 4; | |
299 | } else if ((len == 1 && strncasecmp(str,"p",1)==0) || | |
300 | (len >= 4 && strncasecmp(str,"part",4)==0)) { | |
301 | autof = 6; | |
302 | } else { | |
303 | fprintf(stderr, Name ": %s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" | |
304 | " optionally followed by a number.\n", | |
305 | msg, str); | |
306 | exit(2); | |
307 | } | |
308 | autof |= num << 3; | |
309 | } | |
310 | return autof; | |
311 | } | |
312 | ||
313 | static void createline(char *line) | |
314 | { | |
315 | char *w; | |
316 | char *ep; | |
317 | ||
318 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
319 | if (strncasecmp(w, "auto=", 5) == 0) | |
320 | createinfo.autof = parse_auto(w+5, "auto=", 1); | |
321 | else if (strncasecmp(w, "owner=", 6) == 0) { | |
322 | if (w[6] == 0) { | |
323 | fprintf(stderr, Name ": missing owner name\n"); | |
324 | continue; | |
325 | } | |
326 | createinfo.uid = strtoul(w+6, &ep, 10); | |
327 | if (*ep != 0) { | |
328 | struct passwd *pw; | |
329 | /* must be a name */ | |
330 | pw = getpwnam(w+6); | |
331 | if (pw) | |
332 | createinfo.uid = pw->pw_uid; | |
333 | else | |
334 | fprintf(stderr, Name ": CREATE user %s not found\n", w+6); | |
335 | } | |
336 | } else if (strncasecmp(w, "group=", 6) == 0) { | |
337 | if (w[6] == 0) { | |
338 | fprintf(stderr, Name ": missing group name\n"); | |
339 | continue; | |
340 | } | |
341 | createinfo.gid = strtoul(w+6, &ep, 10); | |
342 | if (*ep != 0) { | |
343 | struct group *gr; | |
344 | /* must be a name */ | |
345 | gr = getgrnam(w+6); | |
346 | if (gr) | |
347 | createinfo.gid = gr->gr_gid; | |
348 | else | |
349 | fprintf(stderr, Name ": CREATE group %s not found\n", w+6); | |
350 | } | |
351 | } else if (strncasecmp(w, "mode=", 5) == 0) { | |
352 | if (w[5] == 0) { | |
353 | fprintf(stderr, Name ": missing CREATE mode\n"); | |
354 | continue; | |
355 | } | |
356 | createinfo.mode = strtoul(w+5, &ep, 8); | |
357 | if (*ep != 0) { | |
358 | createinfo.mode = 0600; | |
359 | fprintf(stderr, Name ": unrecognised CREATE mode %s\n", | |
360 | w+5); | |
361 | } | |
362 | } else if (strncasecmp(w, "metadata=", 9) == 0) { | |
363 | /* style of metadata to use by default */ | |
364 | int i; | |
365 | for (i=0; superlist[i] && !createinfo.supertype; i++) | |
366 | createinfo.supertype = | |
367 | superlist[i]->match_metadata_desc(w+9); | |
368 | if (!createinfo.supertype) | |
369 | fprintf(stderr, Name ": metadata format %s unknown, ignoring\n", | |
370 | w+9); | |
371 | } else if (strncasecmp(w, "symlinks=yes", 12) == 0) | |
372 | createinfo.symlinks = 1; | |
373 | else if (strncasecmp(w, "symlinks=no", 11) == 0) | |
374 | createinfo.symlinks = 0; | |
375 | else { | |
376 | fprintf(stderr, Name ": unrecognised word on CREATE line: %s\n", | |
377 | w); | |
378 | } | |
379 | } | |
380 | } | |
381 | ||
382 | void devline(char *line) | |
383 | { | |
384 | char *w; | |
385 | struct conf_dev *cd; | |
386 | ||
387 | for (w=dl_next(line); w != line; w=dl_next(w)) { | |
388 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0) { | |
389 | cd = malloc(sizeof(*cd)); | |
390 | cd->name = strdup(w); | |
391 | cd->next = cdevlist; | |
392 | cdevlist = cd; | |
393 | } else { | |
394 | fprintf(stderr, Name ": unreconised word on DEVICE line: %s\n", | |
395 | w); | |
396 | } | |
397 | } | |
398 | } | |
399 | ||
400 | mddev_ident_t mddevlist = NULL; | |
401 | mddev_ident_t *mddevlp = &mddevlist; | |
402 | ||
403 | void arrayline(char *line) | |
404 | { | |
405 | char *w; | |
406 | ||
407 | struct mddev_ident_s mis; | |
408 | mddev_ident_t mi; | |
409 | ||
410 | mis.uuid_set = 0; | |
411 | mis.super_minor = UnSet; | |
412 | mis.level = UnSet; | |
413 | mis.raid_disks = UnSet; | |
414 | mis.spare_disks = 0; | |
415 | mis.devices = NULL; | |
416 | mis.devname = NULL; | |
417 | mis.spare_group = NULL; | |
418 | mis.autof = 0; | |
419 | mis.next = NULL; | |
420 | mis.st = NULL; | |
421 | mis.bitmap_fd = -1; | |
422 | mis.bitmap_file = NULL; | |
423 | mis.name[0] = 0; | |
424 | ||
425 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
426 | if (w[0] == '/') { | |
427 | if (mis.devname) | |
428 | fprintf(stderr, Name ": only give one device per ARRAY line: %s and %s\n", | |
429 | mis.devname, w); | |
430 | else mis.devname = w; | |
431 | } else if (strncasecmp(w, "uuid=", 5)==0 ) { | |
432 | if (mis.uuid_set) | |
433 | fprintf(stderr, Name ": only specify uuid once, %s ignored.\n", | |
434 | w); | |
435 | else { | |
436 | if (parse_uuid(w+5, mis.uuid)) | |
437 | mis.uuid_set = 1; | |
438 | else | |
439 | fprintf(stderr, Name ": bad uuid: %s\n", w); | |
440 | } | |
441 | } else if (strncasecmp(w, "super-minor=", 12)==0 ) { | |
442 | if (mis.super_minor != UnSet) | |
443 | fprintf(stderr, Name ": only specify super-minor once, %s ignored.\n", | |
444 | w); | |
445 | else { | |
446 | char *endptr; | |
447 | mis.super_minor= strtol(w+12, &endptr, 10); | |
448 | if (w[12]==0 || endptr[0]!=0 || mis.super_minor < 0) { | |
449 | fprintf(stderr, Name ": invalid super-minor number: %s\n", | |
450 | w); | |
451 | mis.super_minor = UnSet; | |
452 | } | |
453 | } | |
454 | } else if (strncasecmp(w, "name=", 5)==0) { | |
455 | if (mis.name[0]) | |
456 | fprintf(stderr, Name ": only specify name once, %s ignored.\n", | |
457 | w); | |
458 | else if (strlen(w+5) > 32) | |
459 | fprintf(stderr, Name ": name too long, ignoring %s\n", w); | |
460 | else | |
461 | strcpy(mis.name, w+5); | |
462 | ||
463 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { | |
464 | if (mis.bitmap_file) | |
465 | fprintf(stderr, Name ": only specify bitmap file once. %s ignored\n", | |
466 | w); | |
467 | else | |
468 | mis.bitmap_file = strdup(w+7); | |
469 | ||
470 | } else if (strncasecmp(w, "devices=", 8 ) == 0 ) { | |
471 | if (mis.devices) | |
472 | fprintf(stderr, Name ": only specify devices once (use a comma separated list). %s ignored\n", | |
473 | w); | |
474 | else | |
475 | mis.devices = strdup(w+8); | |
476 | } else if (strncasecmp(w, "spare-group=", 12) == 0 ) { | |
477 | if (mis.spare_group) | |
478 | fprintf(stderr, Name ": only specify one spare group per array. %s ignored.\n", | |
479 | w); | |
480 | else | |
481 | mis.spare_group = strdup(w+12); | |
482 | } else if (strncasecmp(w, "level=", 6) == 0 ) { | |
483 | /* this is mainly for compatability with --brief output */ | |
484 | mis.level = map_name(pers, w+6); | |
485 | } else if (strncasecmp(w, "disks=", 6) == 0 ) { | |
486 | /* again, for compat */ | |
487 | mis.raid_disks = atoi(w+6); | |
488 | } else if (strncasecmp(w, "num-devices=", 12) == 0 ) { | |
489 | /* again, for compat */ | |
490 | mis.raid_disks = atoi(w+12); | |
491 | } else if (strncasecmp(w, "spares=", 7) == 0 ) { | |
492 | /* for warning if not all spares present */ | |
493 | mis.spare_disks = atoi(w+7); | |
494 | } else if (strncasecmp(w, "metadata=", 9) == 0) { | |
495 | /* style of metadata on the devices. */ | |
496 | int i; | |
497 | ||
498 | for(i=0; superlist[i] && !mis.st; i++) | |
499 | mis.st = superlist[i]->match_metadata_desc(w+9); | |
500 | ||
501 | if (!mis.st) | |
502 | fprintf(stderr, Name ": metadata format %s unknown, ignored.\n", w+9); | |
503 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { | |
504 | /* whether to create device special files as needed */ | |
505 | mis.autof = parse_auto(w+5, "auto type", 0); | |
506 | } else { | |
507 | fprintf(stderr, Name ": unrecognised word on ARRAY line: %s\n", | |
508 | w); | |
509 | } | |
510 | } | |
511 | if (mis.devname == NULL) | |
512 | fprintf(stderr, Name ": ARRAY line with no device\n"); | |
513 | else if (mis.uuid_set == 0 && mis.devices == NULL && mis.super_minor == UnSet && mis.name[0] == 0) | |
514 | fprintf(stderr, Name ": ARRAY line %s has no identity information.\n", mis.devname); | |
515 | else { | |
516 | mi = malloc(sizeof(*mi)); | |
517 | *mi = mis; | |
518 | mi->devname = strdup(mis.devname); | |
519 | mi->next = NULL; | |
520 | *mddevlp = mi; | |
521 | mddevlp = &mi->next; | |
522 | } | |
523 | } | |
524 | ||
525 | static char *alert_email = NULL; | |
526 | void mailline(char *line) | |
527 | { | |
528 | char *w; | |
529 | ||
530 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
531 | if (alert_email == NULL) | |
532 | alert_email = strdup(w); | |
533 | else | |
534 | fprintf(stderr, Name ": excess address on MAIL line: %s - ignored\n", | |
535 | w); | |
536 | } | |
537 | } | |
538 | ||
539 | static char *alert_mail_from = NULL; | |
540 | void mailfromline(char *line) | |
541 | { | |
542 | char *w; | |
543 | ||
544 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
545 | if (alert_mail_from == NULL) | |
546 | alert_mail_from = strdup(w); | |
547 | else { | |
548 | char *t= NULL; | |
549 | asprintf(&t, "%s %s", alert_mail_from, w); | |
550 | free(alert_mail_from); | |
551 | alert_mail_from = t; | |
552 | } | |
553 | } | |
554 | } | |
555 | ||
556 | ||
557 | static char *alert_program = NULL; | |
558 | void programline(char *line) | |
559 | { | |
560 | char *w; | |
561 | ||
562 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
563 | if (alert_program == NULL) | |
564 | alert_program = strdup(w); | |
565 | else | |
566 | fprintf(stderr, Name ": excess program on PROGRAM line: %s - ignored\n", | |
567 | w); | |
568 | } | |
569 | } | |
570 | ||
571 | static char *home_host = NULL; | |
572 | void homehostline(char *line) | |
573 | { | |
574 | char *w; | |
575 | ||
576 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
577 | if (home_host == NULL) | |
578 | home_host = strdup(w); | |
579 | else | |
580 | fprintf(stderr, Name ": excess host name on HOMEHOST line: %s - ignored\n", | |
581 | w); | |
582 | } | |
583 | } | |
584 | ||
585 | ||
586 | int loaded = 0; | |
587 | ||
588 | static char *conffile = NULL; | |
589 | void set_conffile(char *file) | |
590 | { | |
591 | conffile = file; | |
592 | } | |
593 | ||
594 | void load_conffile(void) | |
595 | { | |
596 | FILE *f; | |
597 | char *line; | |
598 | ||
599 | if (loaded) return; | |
600 | if (conffile == NULL) | |
601 | conffile = DefaultConfFile; | |
602 | ||
603 | if (strcmp(conffile, "none") == 0) { | |
604 | loaded = 1; | |
605 | return; | |
606 | } | |
607 | if (strcmp(conffile, "partitions")==0) { | |
608 | char *list = dl_strdup("DEV"); | |
609 | dl_init(list); | |
610 | dl_add(list, dl_strdup("partitions")); | |
611 | devline(list); | |
612 | free_line(list); | |
613 | loaded = 1; | |
614 | return; | |
615 | } | |
616 | f = fopen(conffile, "r"); | |
617 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. | |
618 | * To allow Debian users to compile from clean source and still | |
619 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
620 | * if /etc/mdadm.conf doesn't exist | |
621 | */ | |
622 | if (f == NULL && | |
623 | conffile == DefaultConfFile) { | |
624 | f = fopen(DefaultAltConfFile, "r"); | |
625 | if (f) | |
626 | conffile = DefaultAltConfFile; | |
627 | } | |
628 | if (f == NULL) | |
629 | return; | |
630 | ||
631 | loaded = 1; | |
632 | while ((line=conf_line(f))) { | |
633 | switch(match_keyword(line)) { | |
634 | case Devices: | |
635 | devline(line); | |
636 | break; | |
637 | case Array: | |
638 | arrayline(line); | |
639 | break; | |
640 | case Mailaddr: | |
641 | mailline(line); | |
642 | break; | |
643 | case Mailfrom: | |
644 | mailfromline(line); | |
645 | break; | |
646 | case Program: | |
647 | programline(line); | |
648 | break; | |
649 | case CreateDev: | |
650 | createline(line); | |
651 | break; | |
652 | case Homehost: | |
653 | homehostline(line); | |
654 | break; | |
655 | default: | |
656 | fprintf(stderr, Name ": Unknown keyword %s\n", line); | |
657 | } | |
658 | free_line(line); | |
659 | } | |
660 | ||
661 | fclose(f); | |
662 | ||
663 | /* printf("got file\n"); */ | |
664 | } | |
665 | ||
666 | char *conf_get_mailaddr(void) | |
667 | { | |
668 | load_conffile(); | |
669 | return alert_email; | |
670 | } | |
671 | ||
672 | char *conf_get_mailfrom(void) | |
673 | { | |
674 | load_conffile(); | |
675 | return alert_mail_from; | |
676 | } | |
677 | ||
678 | char *conf_get_program(void) | |
679 | { | |
680 | load_conffile(); | |
681 | return alert_program; | |
682 | } | |
683 | ||
684 | char *conf_get_homehost(void) | |
685 | { | |
686 | load_conffile(); | |
687 | return home_host; | |
688 | } | |
689 | ||
690 | struct createinfo *conf_get_create_info(void) | |
691 | { | |
692 | load_conffile(); | |
693 | return &createinfo; | |
694 | } | |
695 | ||
696 | mddev_ident_t conf_get_ident(char *dev) | |
697 | { | |
698 | mddev_ident_t rv; | |
699 | load_conffile(); | |
700 | rv = mddevlist; | |
701 | while (dev && rv && strcmp(dev, rv->devname)!=0) | |
702 | rv = rv->next; | |
703 | return rv; | |
704 | } | |
705 | ||
706 | mddev_dev_t conf_get_devs() | |
707 | { | |
708 | glob_t globbuf; | |
709 | struct conf_dev *cd; | |
710 | int flags = 0; | |
711 | static mddev_dev_t dlist = NULL; | |
712 | unsigned int i; | |
713 | ||
714 | while (dlist) { | |
715 | mddev_dev_t t = dlist; | |
716 | dlist = dlist->next; | |
717 | free(t->devname); | |
718 | free(t); | |
719 | } | |
720 | ||
721 | load_conffile(); | |
722 | ||
723 | if (cdevlist == NULL) | |
724 | /* default to 'partitions */ | |
725 | dlist = load_partitions(); | |
726 | ||
727 | for (cd=cdevlist; cd; cd=cd->next) { | |
728 | if (strcasecmp(cd->name, "partitions")==0 && dlist == NULL) | |
729 | dlist = load_partitions(); | |
730 | else { | |
731 | glob(cd->name, flags, NULL, &globbuf); | |
732 | flags |= GLOB_APPEND; | |
733 | } | |
734 | } | |
735 | if (flags & GLOB_APPEND) { | |
736 | for (i=0; i<globbuf.gl_pathc; i++) { | |
737 | mddev_dev_t t = malloc(sizeof(*t)); | |
738 | t->devname = strdup(globbuf.gl_pathv[i]); | |
739 | t->next = dlist; | |
740 | t->used = 0; | |
741 | dlist = t; | |
742 | /* printf("one dev is %s\n", t->devname);*/ | |
743 | } | |
744 | globfree(&globbuf); | |
745 | } | |
746 | ||
747 | return dlist; | |
748 | } | |
749 | ||
750 | int conf_test_dev(char *devname) | |
751 | { | |
752 | struct conf_dev *cd; | |
753 | if (cdevlist == NULL) | |
754 | /* allow anything by default */ | |
755 | return 1; | |
756 | for (cd = cdevlist ; cd ; cd = cd->next) { | |
757 | if (strcasecmp(cd->name, "partitions") == 0) | |
758 | return 1; | |
759 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
760 | return 1; | |
761 | } | |
762 | return 0; | |
763 | } | |
764 | ||
765 | ||
766 | int match_oneof(char *devices, char *devname) | |
767 | { | |
768 | /* check if one of the comma separated patterns in devices | |
769 | * matches devname | |
770 | */ | |
771 | ||
772 | ||
773 | while (devices && *devices) { | |
774 | char patn[1024]; | |
775 | char *p = devices; | |
776 | devices = strchr(devices, ','); | |
777 | if (!devices) | |
778 | devices = p + strlen(p); | |
779 | if (devices-p < 1024) { | |
780 | strncpy(patn, p, devices-p); | |
781 | patn[devices-p] = 0; | |
782 | if (fnmatch(patn, devname, FNM_PATHNAME)==0) | |
783 | return 1; | |
784 | } | |
785 | if (*devices == ',') | |
786 | devices++; | |
787 | } | |
788 | return 0; | |
789 | } |