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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 | /* Hack for broken kernels (2.6.14-.24) that put | |
165 | * "active(auto-read-only)" | |
166 | * in /proc/mdstat instead of | |
167 | * "active (auto-read-only)" | |
168 | */ | |
169 | if (c == '(' && len >= 6 | |
170 | && strncmp(word+len-6, "active", 6) == 0) | |
171 | c = ' '; | |
172 | } | |
173 | } | |
174 | if (c != EOF) ungetc(c, file); | |
175 | } | |
176 | word[len] = 0; | |
177 | ||
178 | /* Further HACK for broken kernels.. 2.6.14-2.6.24 */ | |
179 | if (strcmp(word, "auto-read-only)") == 0) | |
180 | strcpy(word, "(auto-read-only)"); | |
181 | ||
182 | /* printf("word is <%s>\n", word); */ | |
183 | if (!wordfound) { | |
184 | free(word); | |
185 | word = NULL; | |
186 | } | |
187 | return word; | |
188 | } | |
189 | ||
190 | /* | |
191 | * conf_line reads one logical line from the conffile. | |
192 | * It skips comments and continues until it finds a line that starts | |
193 | * with a non blank/comment. This character is pushed back for the next call | |
194 | * A doubly linked list of words is returned. | |
195 | * the first word will be a keyword. Other words will have had quotes removed. | |
196 | */ | |
197 | ||
198 | char *conf_line(FILE *file) | |
199 | { | |
200 | char *w; | |
201 | char *list; | |
202 | ||
203 | w = conf_word(file, 1); | |
204 | if (w == NULL) return NULL; | |
205 | ||
206 | list = dl_strdup(w); | |
207 | free(w); | |
208 | dl_init(list); | |
209 | ||
210 | while ((w = conf_word(file,0))){ | |
211 | char *w2 = dl_strdup(w); | |
212 | free(w); | |
213 | dl_add(list, w2); | |
214 | } | |
215 | /* printf("got a line\n");*/ | |
216 | return list; | |
217 | } | |
218 | ||
219 | void free_line(char *line) | |
220 | { | |
221 | char *w; | |
222 | for (w=dl_next(line); w != line; w=dl_next(line)) { | |
223 | dl_del(w); | |
224 | dl_free(w); | |
225 | } | |
226 | dl_free(line); | |
227 | } | |
228 | ||
229 | ||
230 | struct conf_dev { | |
231 | struct conf_dev *next; | |
232 | char *name; | |
233 | } *cdevlist = NULL; | |
234 | ||
235 | mddev_dev_t load_partitions(void) | |
236 | { | |
237 | FILE *f = fopen("/proc/partitions", "r"); | |
238 | char buf[1024]; | |
239 | mddev_dev_t rv = NULL; | |
240 | if (f == NULL) { | |
241 | fprintf(stderr, Name ": cannot open /proc/partitions\n"); | |
242 | return NULL; | |
243 | } | |
244 | while (fgets(buf, 1024, f)) { | |
245 | int major, minor; | |
246 | char *name, *mp; | |
247 | mddev_dev_t d; | |
248 | ||
249 | buf[1023] = '\0'; | |
250 | if (buf[0] != ' ') | |
251 | continue; | |
252 | major = strtoul(buf, &mp, 10); | |
253 | if (mp == buf || *mp != ' ') | |
254 | continue; | |
255 | minor = strtoul(mp, NULL, 10); | |
256 | ||
257 | name = map_dev(major, minor, 1); | |
258 | if (!name) | |
259 | continue; | |
260 | d = malloc(sizeof(*d)); | |
261 | d->devname = strdup(name); | |
262 | d->next = rv; | |
263 | d->used = 0; | |
264 | rv = d; | |
265 | } | |
266 | fclose(f); | |
267 | return rv; | |
268 | } | |
269 | ||
270 | struct createinfo createinfo = { | |
271 | .autof = 2, /* by default, create devices with standard names */ | |
272 | .symlinks = 1, | |
273 | #ifdef DEBIAN | |
274 | .gid = 6, /* disk */ | |
275 | .mode = 0660, | |
276 | #else | |
277 | .mode = 0600, | |
278 | #endif | |
279 | }; | |
280 | ||
281 | int parse_auto(char *str, char *msg, int config) | |
282 | { | |
283 | int autof; | |
284 | if (str == NULL || *str == 0) | |
285 | autof = 2; | |
286 | else if (strcasecmp(str,"no")==0) | |
287 | autof = 1; | |
288 | else if (strcasecmp(str,"yes")==0) | |
289 | autof = 2; | |
290 | else if (strcasecmp(str,"md")==0) | |
291 | autof = config?5:3; | |
292 | else { | |
293 | /* There might be digits, and maybe a hypen, at the end */ | |
294 | char *e = str + strlen(str); | |
295 | int num = 4; | |
296 | int len; | |
297 | while (e > str && isdigit(e[-1])) | |
298 | e--; | |
299 | if (*e) { | |
300 | num = atoi(e); | |
301 | if (num <= 0) num = 1; | |
302 | } | |
303 | if (e > str && e[-1] == '-') | |
304 | e--; | |
305 | len = e - str; | |
306 | if ((len == 2 && strncasecmp(str,"md",2)==0)) { | |
307 | autof = config ? 5 : 3; | |
308 | } else if ((len == 3 && strncasecmp(str,"yes",3)==0)) { | |
309 | autof = 2; | |
310 | } else if ((len == 3 && strncasecmp(str,"mdp",3)==0)) { | |
311 | autof = config ? 6 : 4; | |
312 | } else if ((len == 1 && strncasecmp(str,"p",1)==0) || | |
313 | (len >= 4 && strncasecmp(str,"part",4)==0)) { | |
314 | autof = 6; | |
315 | } else { | |
316 | fprintf(stderr, Name ": %s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" | |
317 | " optionally followed by a number.\n", | |
318 | msg, str); | |
319 | exit(2); | |
320 | } | |
321 | autof |= num << 3; | |
322 | } | |
323 | return autof; | |
324 | } | |
325 | ||
326 | static void createline(char *line) | |
327 | { | |
328 | char *w; | |
329 | char *ep; | |
330 | ||
331 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
332 | if (strncasecmp(w, "auto=", 5) == 0) | |
333 | createinfo.autof = parse_auto(w+5, "auto=", 1); | |
334 | else if (strncasecmp(w, "owner=", 6) == 0) { | |
335 | if (w[6] == 0) { | |
336 | fprintf(stderr, Name ": missing owner name\n"); | |
337 | continue; | |
338 | } | |
339 | createinfo.uid = strtoul(w+6, &ep, 10); | |
340 | if (*ep != 0) { | |
341 | struct passwd *pw; | |
342 | /* must be a name */ | |
343 | pw = getpwnam(w+6); | |
344 | if (pw) | |
345 | createinfo.uid = pw->pw_uid; | |
346 | else | |
347 | fprintf(stderr, Name ": CREATE user %s not found\n", w+6); | |
348 | } | |
349 | } else if (strncasecmp(w, "group=", 6) == 0) { | |
350 | if (w[6] == 0) { | |
351 | fprintf(stderr, Name ": missing group name\n"); | |
352 | continue; | |
353 | } | |
354 | createinfo.gid = strtoul(w+6, &ep, 10); | |
355 | if (*ep != 0) { | |
356 | struct group *gr; | |
357 | /* must be a name */ | |
358 | gr = getgrnam(w+6); | |
359 | if (gr) | |
360 | createinfo.gid = gr->gr_gid; | |
361 | else | |
362 | fprintf(stderr, Name ": CREATE group %s not found\n", w+6); | |
363 | } | |
364 | } else if (strncasecmp(w, "mode=", 5) == 0) { | |
365 | if (w[5] == 0) { | |
366 | fprintf(stderr, Name ": missing CREATE mode\n"); | |
367 | continue; | |
368 | } | |
369 | createinfo.mode = strtoul(w+5, &ep, 8); | |
370 | if (*ep != 0) { | |
371 | createinfo.mode = 0600; | |
372 | fprintf(stderr, Name ": unrecognised CREATE mode %s\n", | |
373 | w+5); | |
374 | } | |
375 | } else if (strncasecmp(w, "metadata=", 9) == 0) { | |
376 | /* style of metadata to use by default */ | |
377 | int i; | |
378 | for (i=0; superlist[i] && !createinfo.supertype; i++) | |
379 | createinfo.supertype = | |
380 | superlist[i]->match_metadata_desc(w+9); | |
381 | if (!createinfo.supertype) | |
382 | fprintf(stderr, Name ": metadata format %s unknown, ignoring\n", | |
383 | w+9); | |
384 | } else if (strncasecmp(w, "symlinks=yes", 12) == 0) | |
385 | createinfo.symlinks = 1; | |
386 | else if (strncasecmp(w, "symlinks=no", 11) == 0) | |
387 | createinfo.symlinks = 0; | |
388 | else { | |
389 | fprintf(stderr, Name ": unrecognised word on CREATE line: %s\n", | |
390 | w); | |
391 | } | |
392 | } | |
393 | } | |
394 | ||
395 | void devline(char *line) | |
396 | { | |
397 | char *w; | |
398 | struct conf_dev *cd; | |
399 | ||
400 | for (w=dl_next(line); w != line; w=dl_next(w)) { | |
401 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0) { | |
402 | cd = malloc(sizeof(*cd)); | |
403 | cd->name = strdup(w); | |
404 | cd->next = cdevlist; | |
405 | cdevlist = cd; | |
406 | } else { | |
407 | fprintf(stderr, Name ": unreconised word on DEVICE line: %s\n", | |
408 | w); | |
409 | } | |
410 | } | |
411 | } | |
412 | ||
413 | mddev_ident_t mddevlist = NULL; | |
414 | mddev_ident_t *mddevlp = &mddevlist; | |
415 | ||
416 | void arrayline(char *line) | |
417 | { | |
418 | char *w; | |
419 | ||
420 | struct mddev_ident_s mis; | |
421 | mddev_ident_t mi; | |
422 | ||
423 | mis.uuid_set = 0; | |
424 | mis.super_minor = UnSet; | |
425 | mis.level = UnSet; | |
426 | mis.raid_disks = UnSet; | |
427 | mis.spare_disks = 0; | |
428 | mis.devices = NULL; | |
429 | mis.devname = NULL; | |
430 | mis.spare_group = NULL; | |
431 | mis.autof = 0; | |
432 | mis.next = NULL; | |
433 | mis.st = NULL; | |
434 | mis.bitmap_fd = -1; | |
435 | mis.bitmap_file = NULL; | |
436 | mis.name[0] = 0; | |
437 | mis.container = NULL; | |
438 | mis.member = NULL; | |
439 | ||
440 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
441 | if (w[0] == '/') { | |
442 | if (mis.devname) | |
443 | fprintf(stderr, Name ": only give one device per ARRAY line: %s and %s\n", | |
444 | mis.devname, w); | |
445 | else mis.devname = w; | |
446 | } else if (strncasecmp(w, "uuid=", 5)==0 ) { | |
447 | if (mis.uuid_set) | |
448 | fprintf(stderr, Name ": only specify uuid once, %s ignored.\n", | |
449 | w); | |
450 | else { | |
451 | if (parse_uuid(w+5, mis.uuid)) | |
452 | mis.uuid_set = 1; | |
453 | else | |
454 | fprintf(stderr, Name ": bad uuid: %s\n", w); | |
455 | } | |
456 | } else if (strncasecmp(w, "super-minor=", 12)==0 ) { | |
457 | if (mis.super_minor != UnSet) | |
458 | fprintf(stderr, Name ": only specify super-minor once, %s ignored.\n", | |
459 | w); | |
460 | else { | |
461 | char *endptr; | |
462 | mis.super_minor= strtol(w+12, &endptr, 10); | |
463 | if (w[12]==0 || endptr[0]!=0 || mis.super_minor < 0) { | |
464 | fprintf(stderr, Name ": invalid super-minor number: %s\n", | |
465 | w); | |
466 | mis.super_minor = UnSet; | |
467 | } | |
468 | } | |
469 | } else if (strncasecmp(w, "name=", 5)==0) { | |
470 | if (mis.name[0]) | |
471 | fprintf(stderr, Name ": only specify name once, %s ignored.\n", | |
472 | w); | |
473 | else if (strlen(w+5) > 32) | |
474 | fprintf(stderr, Name ": name too long, ignoring %s\n", w); | |
475 | else | |
476 | strcpy(mis.name, w+5); | |
477 | ||
478 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { | |
479 | if (mis.bitmap_file) | |
480 | fprintf(stderr, Name ": only specify bitmap file once. %s ignored\n", | |
481 | w); | |
482 | else | |
483 | mis.bitmap_file = strdup(w+7); | |
484 | ||
485 | } else if (strncasecmp(w, "devices=", 8 ) == 0 ) { | |
486 | if (mis.devices) | |
487 | fprintf(stderr, Name ": only specify devices once (use a comma separated list). %s ignored\n", | |
488 | w); | |
489 | else | |
490 | mis.devices = strdup(w+8); | |
491 | } else if (strncasecmp(w, "spare-group=", 12) == 0 ) { | |
492 | if (mis.spare_group) | |
493 | fprintf(stderr, Name ": only specify one spare group per array. %s ignored.\n", | |
494 | w); | |
495 | else | |
496 | mis.spare_group = strdup(w+12); | |
497 | } else if (strncasecmp(w, "level=", 6) == 0 ) { | |
498 | /* this is mainly for compatability with --brief output */ | |
499 | mis.level = map_name(pers, w+6); | |
500 | } else if (strncasecmp(w, "disks=", 6) == 0 ) { | |
501 | /* again, for compat */ | |
502 | mis.raid_disks = atoi(w+6); | |
503 | } else if (strncasecmp(w, "num-devices=", 12) == 0 ) { | |
504 | /* again, for compat */ | |
505 | mis.raid_disks = atoi(w+12); | |
506 | } else if (strncasecmp(w, "spares=", 7) == 0 ) { | |
507 | /* for warning if not all spares present */ | |
508 | mis.spare_disks = atoi(w+7); | |
509 | } else if (strncasecmp(w, "metadata=", 9) == 0) { | |
510 | /* style of metadata on the devices. */ | |
511 | int i; | |
512 | ||
513 | for(i=0; superlist[i] && !mis.st; i++) | |
514 | mis.st = superlist[i]->match_metadata_desc(w+9); | |
515 | ||
516 | if (!mis.st) | |
517 | fprintf(stderr, Name ": metadata format %s unknown, ignored.\n", w+9); | |
518 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { | |
519 | /* whether to create device special files as needed */ | |
520 | mis.autof = parse_auto(w+5, "auto type", 0); | |
521 | } else if (strncasecmp(w, "member=", 7) == 0) { | |
522 | /* subarray within a container */ | |
523 | mis.member = strdup(w+7); | |
524 | } else if (strncasecmp(w, "container=", 10) == 0) { | |
525 | /* the container holding this subarray */ | |
526 | mis.container = strdup(w+10); | |
527 | } else { | |
528 | fprintf(stderr, Name ": unrecognised word on ARRAY line: %s\n", | |
529 | w); | |
530 | } | |
531 | } | |
532 | if (mis.devname == NULL) | |
533 | fprintf(stderr, Name ": ARRAY line with no device\n"); | |
534 | else if (mis.uuid_set == 0 && mis.devices == NULL && mis.super_minor == UnSet && mis.name[0] == 0) | |
535 | fprintf(stderr, Name ": ARRAY line %s has no identity information.\n", mis.devname); | |
536 | else { | |
537 | mi = malloc(sizeof(*mi)); | |
538 | *mi = mis; | |
539 | mi->devname = strdup(mis.devname); | |
540 | mi->next = NULL; | |
541 | *mddevlp = mi; | |
542 | mddevlp = &mi->next; | |
543 | } | |
544 | } | |
545 | ||
546 | static char *alert_email = NULL; | |
547 | void mailline(char *line) | |
548 | { | |
549 | char *w; | |
550 | ||
551 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
552 | if (alert_email == NULL) | |
553 | alert_email = strdup(w); | |
554 | else | |
555 | fprintf(stderr, Name ": excess address on MAIL line: %s - ignored\n", | |
556 | w); | |
557 | } | |
558 | } | |
559 | ||
560 | static char *alert_mail_from = NULL; | |
561 | void mailfromline(char *line) | |
562 | { | |
563 | char *w; | |
564 | ||
565 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
566 | if (alert_mail_from == NULL) | |
567 | alert_mail_from = strdup(w); | |
568 | else { | |
569 | char *t = NULL; | |
570 | ||
571 | if (asprintf(&t, "%s %s", alert_mail_from, w) > 0) { | |
572 | free(alert_mail_from); | |
573 | alert_mail_from = t; | |
574 | } | |
575 | } | |
576 | } | |
577 | } | |
578 | ||
579 | ||
580 | static char *alert_program = NULL; | |
581 | void programline(char *line) | |
582 | { | |
583 | char *w; | |
584 | ||
585 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
586 | if (alert_program == NULL) | |
587 | alert_program = strdup(w); | |
588 | else | |
589 | fprintf(stderr, Name ": excess program on PROGRAM line: %s - ignored\n", | |
590 | w); | |
591 | } | |
592 | } | |
593 | ||
594 | static char *home_host = NULL; | |
595 | void homehostline(char *line) | |
596 | { | |
597 | char *w; | |
598 | ||
599 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
600 | if (home_host == NULL) | |
601 | home_host = strdup(w); | |
602 | else | |
603 | fprintf(stderr, Name ": excess host name on HOMEHOST line: %s - ignored\n", | |
604 | w); | |
605 | } | |
606 | } | |
607 | ||
608 | ||
609 | int loaded = 0; | |
610 | ||
611 | static char *conffile = NULL; | |
612 | void set_conffile(char *file) | |
613 | { | |
614 | conffile = file; | |
615 | } | |
616 | ||
617 | void load_conffile(void) | |
618 | { | |
619 | FILE *f; | |
620 | char *line; | |
621 | ||
622 | if (loaded) return; | |
623 | if (conffile == NULL) | |
624 | conffile = DefaultConfFile; | |
625 | ||
626 | if (strcmp(conffile, "none") == 0) { | |
627 | loaded = 1; | |
628 | return; | |
629 | } | |
630 | if (strcmp(conffile, "partitions")==0) { | |
631 | char *list = dl_strdup("DEV"); | |
632 | dl_init(list); | |
633 | dl_add(list, dl_strdup("partitions")); | |
634 | devline(list); | |
635 | free_line(list); | |
636 | loaded = 1; | |
637 | return; | |
638 | } | |
639 | f = fopen(conffile, "r"); | |
640 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. | |
641 | * To allow Debian users to compile from clean source and still | |
642 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
643 | * if /etc/mdadm.conf doesn't exist | |
644 | */ | |
645 | if (f == NULL && | |
646 | conffile == DefaultConfFile) { | |
647 | f = fopen(DefaultAltConfFile, "r"); | |
648 | if (f) | |
649 | conffile = DefaultAltConfFile; | |
650 | } | |
651 | if (f == NULL) | |
652 | return; | |
653 | ||
654 | loaded = 1; | |
655 | while ((line=conf_line(f))) { | |
656 | switch(match_keyword(line)) { | |
657 | case Devices: | |
658 | devline(line); | |
659 | break; | |
660 | case Array: | |
661 | arrayline(line); | |
662 | break; | |
663 | case Mailaddr: | |
664 | mailline(line); | |
665 | break; | |
666 | case Mailfrom: | |
667 | mailfromline(line); | |
668 | break; | |
669 | case Program: | |
670 | programline(line); | |
671 | break; | |
672 | case CreateDev: | |
673 | createline(line); | |
674 | break; | |
675 | case Homehost: | |
676 | homehostline(line); | |
677 | break; | |
678 | default: | |
679 | fprintf(stderr, Name ": Unknown keyword %s\n", line); | |
680 | } | |
681 | free_line(line); | |
682 | } | |
683 | ||
684 | fclose(f); | |
685 | ||
686 | /* printf("got file\n"); */ | |
687 | } | |
688 | ||
689 | char *conf_get_mailaddr(void) | |
690 | { | |
691 | load_conffile(); | |
692 | return alert_email; | |
693 | } | |
694 | ||
695 | char *conf_get_mailfrom(void) | |
696 | { | |
697 | load_conffile(); | |
698 | return alert_mail_from; | |
699 | } | |
700 | ||
701 | char *conf_get_program(void) | |
702 | { | |
703 | load_conffile(); | |
704 | return alert_program; | |
705 | } | |
706 | ||
707 | char *conf_get_homehost(void) | |
708 | { | |
709 | load_conffile(); | |
710 | return home_host; | |
711 | } | |
712 | ||
713 | struct createinfo *conf_get_create_info(void) | |
714 | { | |
715 | load_conffile(); | |
716 | return &createinfo; | |
717 | } | |
718 | ||
719 | mddev_ident_t conf_get_ident(char *dev) | |
720 | { | |
721 | mddev_ident_t rv; | |
722 | load_conffile(); | |
723 | rv = mddevlist; | |
724 | while (dev && rv && strcmp(dev, rv->devname)!=0) | |
725 | rv = rv->next; | |
726 | return rv; | |
727 | } | |
728 | ||
729 | mddev_dev_t conf_get_devs() | |
730 | { | |
731 | glob_t globbuf; | |
732 | struct conf_dev *cd; | |
733 | int flags = 0; | |
734 | static mddev_dev_t dlist = NULL; | |
735 | unsigned int i; | |
736 | ||
737 | while (dlist) { | |
738 | mddev_dev_t t = dlist; | |
739 | dlist = dlist->next; | |
740 | free(t->devname); | |
741 | free(t); | |
742 | } | |
743 | ||
744 | load_conffile(); | |
745 | ||
746 | if (cdevlist == NULL) | |
747 | /* default to 'partitions */ | |
748 | dlist = load_partitions(); | |
749 | ||
750 | for (cd=cdevlist; cd; cd=cd->next) { | |
751 | if (strcasecmp(cd->name, "partitions")==0 && dlist == NULL) | |
752 | dlist = load_partitions(); | |
753 | else { | |
754 | glob(cd->name, flags, NULL, &globbuf); | |
755 | flags |= GLOB_APPEND; | |
756 | } | |
757 | } | |
758 | if (flags & GLOB_APPEND) { | |
759 | for (i=0; i<globbuf.gl_pathc; i++) { | |
760 | mddev_dev_t t = malloc(sizeof(*t)); | |
761 | t->devname = strdup(globbuf.gl_pathv[i]); | |
762 | t->next = dlist; | |
763 | t->used = 0; | |
764 | dlist = t; | |
765 | /* printf("one dev is %s\n", t->devname);*/ | |
766 | } | |
767 | globfree(&globbuf); | |
768 | } | |
769 | ||
770 | return dlist; | |
771 | } | |
772 | ||
773 | int conf_test_dev(char *devname) | |
774 | { | |
775 | struct conf_dev *cd; | |
776 | if (cdevlist == NULL) | |
777 | /* allow anything by default */ | |
778 | return 1; | |
779 | for (cd = cdevlist ; cd ; cd = cd->next) { | |
780 | if (strcasecmp(cd->name, "partitions") == 0) | |
781 | return 1; | |
782 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
783 | return 1; | |
784 | } | |
785 | return 0; | |
786 | } | |
787 | ||
788 | ||
789 | int match_oneof(char *devices, char *devname) | |
790 | { | |
791 | /* check if one of the comma separated patterns in devices | |
792 | * matches devname | |
793 | */ | |
794 | ||
795 | ||
796 | while (devices && *devices) { | |
797 | char patn[1024]; | |
798 | char *p = devices; | |
799 | devices = strchr(devices, ','); | |
800 | if (!devices) | |
801 | devices = p + strlen(p); | |
802 | if (devices-p < 1024) { | |
803 | strncpy(patn, p, devices-p); | |
804 | patn[devices-p] = 0; | |
805 | if (fnmatch(patn, devname, FNM_PATHNAME)==0) | |
806 | return 1; | |
807 | } | |
808 | if (*devices == ',') | |
809 | devices++; | |
810 | } | |
811 | return 0; | |
812 | } |