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64c4757e | 1 | /* |
9a9dab36 | 2 | * mdadm - manage Linux "md" devices aka RAID arrays. |
64c4757e | 3 | * |
e736b623 | 4 | * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de> |
64c4757e NB |
5 | * |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | * Author: Neil Brown | |
e736b623 | 22 | * Email: <neilb@suse.de> |
64c4757e NB |
23 | */ |
24 | ||
9a9dab36 | 25 | #include "mdadm.h" |
82b27616 | 26 | #include "dlink.h" |
ff7f2ebb | 27 | #include <dirent.h> |
82b27616 | 28 | #include <glob.h> |
52826846 | 29 | #include <fnmatch.h> |
dd0781e5 | 30 | #include <ctype.h> |
5bbb4842 NB |
31 | #include <pwd.h> |
32 | #include <grp.h> | |
52826846 | 33 | |
64c4757e NB |
34 | /* |
35 | * Read the config file | |
36 | * | |
37 | * conf_get_uuids gets a list of devicename+uuid pairs | |
38 | * conf_get_devs gets device names after expanding wildcards | |
39 | * | |
40 | * Each keeps the returned list and frees it when asked to make | |
41 | * a new list. | |
42 | * | |
82b27616 NB |
43 | * The format of the config file needs to be fairly extensible. |
44 | * Now, arrays only have names and uuids and devices merely are. | |
45 | * But later arrays might want names, and devices might want superblock | |
46 | * versions, and who knows what else. | |
47 | * I like free format, abhore backslash line continuation, adore | |
48 | * indentation for structure and am ok about # comments. | |
49 | * | |
50 | * So, each line that isn't blank or a #comment must either start | |
51 | * with a key word, and not be indented, or must start with a | |
52 | * non-key-word and must be indented. | |
53 | * | |
31015d57 | 54 | * Keywords are DEVICE and ARRAY ... and several others. |
82b27616 NB |
55 | * DEV{ICE} introduces some devices that might contain raid components. |
56 | * e.g. | |
57 | * DEV style=0 /dev/sda* /dev/hd* | |
58 | * DEV style=1 /dev/sd[b-f]* | |
59 | * ARR{AY} describes an array giving md device and attributes like uuid=whatever | |
60 | * e.g. | |
61 | * ARRAY /dev/md0 uuid=whatever name=something | |
62 | * Spaces separate words on each line. Quoting, with "" or '' protects them, | |
63 | * but may not wrap over lines | |
64 | * | |
64c4757e NB |
65 | */ |
66 | ||
11a3e71d NB |
67 | #ifndef CONFFILE |
68 | #define CONFFILE "/etc/mdadm.conf" | |
69 | #endif | |
ce4fafd6 NB |
70 | #ifndef CONFFILE2 |
71 | /* for Debian compatibility .... */ | |
72 | #define CONFFILE2 "/etc/mdadm/mdadm.conf" | |
73 | #endif | |
11a3e71d | 74 | char DefaultConfFile[] = CONFFILE; |
ce4fafd6 | 75 | char DefaultAltConfFile[] = CONFFILE2; |
64c4757e | 76 | |
31015d57 | 77 | enum linetype { Devices, Array, Mailaddr, Mailfrom, Program, CreateDev, |
5527fc74 | 78 | Homehost, AutoMode, Policy, PartPolicy, LTEnd }; |
8fe9db0f NB |
79 | char *keywords[] = { |
80 | [Devices] = "devices", | |
81 | [Array] = "array", | |
82 | [Mailaddr] = "mailaddr", | |
83 | [Mailfrom] = "mailfrom", | |
84 | [Program] = "program", | |
8382f19b | 85 | [CreateDev]= "create", |
8fe9db0f | 86 | [Homehost] = "homehost", |
31015d57 | 87 | [AutoMode] = "auto", |
5527fc74 N |
88 | [Policy] = "policy", |
89 | [PartPolicy]="part-policy", | |
8fe9db0f NB |
90 | [LTEnd] = NULL |
91 | }; | |
82b27616 NB |
92 | |
93 | /* | |
94 | * match_keyword returns an index into the keywords array, or -1 for no match | |
95 | * case is ignored, and at least three characters must be given | |
96 | */ | |
97 | ||
98 | int match_keyword(char *word) | |
99 | { | |
52826846 NB |
100 | int len = strlen(word); |
101 | int n; | |
aba69144 | 102 | |
52826846 NB |
103 | if (len < 3) return -1; |
104 | for (n=0; keywords[n]; n++) { | |
105 | if (strncasecmp(word, keywords[n], len)==0) | |
106 | return n; | |
107 | } | |
108 | return -1; | |
82b27616 NB |
109 | } |
110 | ||
82b27616 NB |
111 | /* |
112 | * conf_line reads one logical line from the conffile. | |
113 | * It skips comments and continues until it finds a line that starts | |
114 | * with a non blank/comment. This character is pushed back for the next call | |
115 | * A doubly linked list of words is returned. | |
116 | * the first word will be a keyword. Other words will have had quotes removed. | |
117 | */ | |
118 | ||
119 | char *conf_line(FILE *file) | |
120 | { | |
52826846 NB |
121 | char *w; |
122 | char *list; | |
82b27616 | 123 | |
52826846 NB |
124 | w = conf_word(file, 1); |
125 | if (w == NULL) return NULL; | |
82b27616 | 126 | |
52826846 | 127 | list = dl_strdup(w); |
82b27616 | 128 | free(w); |
52826846 NB |
129 | dl_init(list); |
130 | ||
131 | while ((w = conf_word(file,0))){ | |
132 | char *w2 = dl_strdup(w); | |
133 | free(w); | |
134 | dl_add(list, w2); | |
135 | } | |
82b27616 | 136 | /* printf("got a line\n");*/ |
52826846 | 137 | return list; |
82b27616 NB |
138 | } |
139 | ||
140 | void free_line(char *line) | |
141 | { | |
52826846 NB |
142 | char *w; |
143 | for (w=dl_next(line); w != line; w=dl_next(line)) { | |
144 | dl_del(w); | |
145 | dl_free(w); | |
146 | } | |
147 | dl_free(line); | |
82b27616 NB |
148 | } |
149 | ||
150 | ||
151 | struct conf_dev { | |
152 | struct conf_dev *next; | |
153 | char *name; | |
154 | } *cdevlist = NULL; | |
155 | ||
a655e550 | 156 | struct mddev_dev *load_partitions(void) |
5787fa49 NB |
157 | { |
158 | FILE *f = fopen("/proc/partitions", "r"); | |
159 | char buf[1024]; | |
a655e550 | 160 | struct mddev_dev *rv = NULL; |
5787fa49 NB |
161 | if (f == NULL) { |
162 | fprintf(stderr, Name ": cannot open /proc/partitions\n"); | |
057bd352 | 163 | return NULL; |
5787fa49 NB |
164 | } |
165 | while (fgets(buf, 1024, f)) { | |
166 | int major, minor; | |
98c6faba | 167 | char *name, *mp; |
a655e550 | 168 | struct mddev_dev *d; |
8b0dabea | 169 | |
5787fa49 NB |
170 | buf[1023] = '\0'; |
171 | if (buf[0] != ' ') | |
172 | continue; | |
98c6faba | 173 | major = strtoul(buf, &mp, 10); |
aba69144 | 174 | if (mp == buf || *mp != ' ') |
5787fa49 | 175 | continue; |
98c6faba NB |
176 | minor = strtoul(mp, NULL, 10); |
177 | ||
16c6fa80 | 178 | name = map_dev(major, minor, 1); |
e81cdd9f NB |
179 | if (!name) |
180 | continue; | |
8b0dabea NB |
181 | d = malloc(sizeof(*d)); |
182 | d->devname = strdup(name); | |
183 | d->next = rv; | |
da6b5ca9 | 184 | d->used = 0; |
8b0dabea | 185 | rv = d; |
5787fa49 | 186 | } |
dd0781e5 | 187 | fclose(f); |
057bd352 | 188 | return rv; |
5787fa49 | 189 | } |
82b27616 | 190 | |
a655e550 | 191 | struct mddev_dev *load_containers(void) |
f64165f7 DW |
192 | { |
193 | struct mdstat_ent *mdstat = mdstat_read(1, 0); | |
194 | struct mdstat_ent *ent; | |
a655e550 N |
195 | struct mddev_dev *d; |
196 | struct mddev_dev *rv = NULL; | |
f64165f7 DW |
197 | |
198 | if (!mdstat) | |
199 | return NULL; | |
200 | ||
201 | for (ent = mdstat; ent; ent = ent->next) | |
202 | if (ent->metadata_version && | |
203 | strncmp(ent->metadata_version, "external:", 9) == 0 && | |
204 | !is_subarray(&ent->metadata_version[9])) { | |
205 | d = malloc(sizeof(*d)); | |
206 | if (!d) | |
207 | continue; | |
208 | if (asprintf(&d->devname, "/dev/%s", ent->dev) < 0) { | |
209 | free(d); | |
210 | continue; | |
211 | } | |
212 | d->next = rv; | |
213 | d->used = 0; | |
214 | rv = d; | |
215 | } | |
216 | free_mdstat(mdstat); | |
217 | ||
218 | return rv; | |
219 | } | |
220 | ||
5bbb4842 | 221 | struct createinfo createinfo = { |
75723446 | 222 | .autof = 2, /* by default, create devices with standard names */ |
38098016 | 223 | .symlinks = 1, |
5bbb4842 NB |
224 | #ifdef DEBIAN |
225 | .gid = 6, /* disk */ | |
226 | .mode = 0660, | |
227 | #else | |
228 | .mode = 0600, | |
229 | #endif | |
230 | }; | |
231 | ||
f1ae21c4 | 232 | int parse_auto(char *str, char *msg, int config) |
5bbb4842 NB |
233 | { |
234 | int autof; | |
235 | if (str == NULL || *str == 0) | |
f1ae21c4 | 236 | autof = 2; |
5bbb4842 | 237 | else if (strcasecmp(str,"no")==0) |
f1ae21c4 | 238 | autof = 1; |
5bbb4842 | 239 | else if (strcasecmp(str,"yes")==0) |
f1ae21c4 | 240 | autof = 2; |
5bbb4842 | 241 | else if (strcasecmp(str,"md")==0) |
f1ae21c4 | 242 | autof = config?5:3; |
5bbb4842 NB |
243 | else { |
244 | /* There might be digits, and maybe a hypen, at the end */ | |
245 | char *e = str + strlen(str); | |
246 | int num = 4; | |
247 | int len; | |
248 | while (e > str && isdigit(e[-1])) | |
249 | e--; | |
250 | if (*e) { | |
251 | num = atoi(e); | |
252 | if (num <= 0) num = 1; | |
253 | } | |
254 | if (e > str && e[-1] == '-') | |
255 | e--; | |
256 | len = e - str; | |
f1ae21c4 NB |
257 | if ((len == 2 && strncasecmp(str,"md",2)==0)) { |
258 | autof = config ? 5 : 3; | |
6ba83b5f NB |
259 | } else if ((len == 3 && strncasecmp(str,"yes",3)==0)) { |
260 | autof = 2; | |
f1ae21c4 NB |
261 | } else if ((len == 3 && strncasecmp(str,"mdp",3)==0)) { |
262 | autof = config ? 6 : 4; | |
263 | } else if ((len == 1 && strncasecmp(str,"p",1)==0) || | |
264 | (len >= 4 && strncasecmp(str,"part",4)==0)) { | |
265 | autof = 6; | |
266 | } else { | |
5bbb4842 NB |
267 | fprintf(stderr, Name ": %s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" |
268 | " optionally followed by a number.\n", | |
269 | msg, str); | |
270 | exit(2); | |
271 | } | |
f1ae21c4 | 272 | autof |= num << 3; |
5bbb4842 NB |
273 | } |
274 | return autof; | |
275 | } | |
f1ae21c4 | 276 | |
5bbb4842 NB |
277 | static void createline(char *line) |
278 | { | |
279 | char *w; | |
280 | char *ep; | |
281 | ||
282 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
283 | if (strncasecmp(w, "auto=", 5) == 0) | |
f1ae21c4 | 284 | createinfo.autof = parse_auto(w+5, "auto=", 1); |
5bbb4842 NB |
285 | else if (strncasecmp(w, "owner=", 6) == 0) { |
286 | if (w[6] == 0) { | |
287 | fprintf(stderr, Name ": missing owner name\n"); | |
288 | continue; | |
289 | } | |
290 | createinfo.uid = strtoul(w+6, &ep, 10); | |
291 | if (*ep != 0) { | |
5bbb4842 NB |
292 | struct passwd *pw; |
293 | /* must be a name */ | |
294 | pw = getpwnam(w+6); | |
295 | if (pw) | |
296 | createinfo.uid = pw->pw_uid; | |
297 | else | |
5bbb4842 NB |
298 | fprintf(stderr, Name ": CREATE user %s not found\n", w+6); |
299 | } | |
300 | } else if (strncasecmp(w, "group=", 6) == 0) { | |
301 | if (w[6] == 0) { | |
302 | fprintf(stderr, Name ": missing group name\n"); | |
303 | continue; | |
304 | } | |
305 | createinfo.gid = strtoul(w+6, &ep, 10); | |
306 | if (*ep != 0) { | |
5bbb4842 NB |
307 | struct group *gr; |
308 | /* must be a name */ | |
309 | gr = getgrnam(w+6); | |
310 | if (gr) | |
311 | createinfo.gid = gr->gr_gid; | |
312 | else | |
5bbb4842 NB |
313 | fprintf(stderr, Name ": CREATE group %s not found\n", w+6); |
314 | } | |
315 | } else if (strncasecmp(w, "mode=", 5) == 0) { | |
316 | if (w[5] == 0) { | |
317 | fprintf(stderr, Name ": missing CREATE mode\n"); | |
318 | continue; | |
319 | } | |
320 | createinfo.mode = strtoul(w+5, &ep, 8); | |
321 | if (*ep != 0) { | |
322 | createinfo.mode = 0600; | |
323 | fprintf(stderr, Name ": unrecognised CREATE mode %s\n", | |
324 | w+5); | |
325 | } | |
058574b1 NB |
326 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
327 | /* style of metadata to use by default */ | |
328 | int i; | |
329 | for (i=0; superlist[i] && !createinfo.supertype; i++) | |
330 | createinfo.supertype = | |
331 | superlist[i]->match_metadata_desc(w+9); | |
332 | if (!createinfo.supertype) | |
333 | fprintf(stderr, Name ": metadata format %s unknown, ignoring\n", | |
334 | w+9); | |
38098016 NB |
335 | } else if (strncasecmp(w, "symlinks=yes", 12) == 0) |
336 | createinfo.symlinks = 1; | |
337 | else if (strncasecmp(w, "symlinks=no", 11) == 0) | |
338 | createinfo.symlinks = 0; | |
339 | else { | |
5bbb4842 NB |
340 | fprintf(stderr, Name ": unrecognised word on CREATE line: %s\n", |
341 | w); | |
342 | } | |
343 | } | |
344 | } | |
82b27616 | 345 | |
aba69144 | 346 | void devline(char *line) |
82b27616 | 347 | { |
52826846 NB |
348 | char *w; |
349 | struct conf_dev *cd; | |
350 | ||
351 | for (w=dl_next(line); w != line; w=dl_next(w)) { | |
f64165f7 DW |
352 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0 || |
353 | strcasecmp(w, "containers") == 0) { | |
52826846 NB |
354 | cd = malloc(sizeof(*cd)); |
355 | cd->name = strdup(w); | |
356 | cd->next = cdevlist; | |
357 | cdevlist = cd; | |
358 | } else { | |
359 | fprintf(stderr, Name ": unreconised word on DEVICE line: %s\n", | |
360 | w); | |
361 | } | |
82b27616 | 362 | } |
82b27616 NB |
363 | } |
364 | ||
fa56eddb N |
365 | struct mddev_ident *mddevlist = NULL; |
366 | struct mddev_ident **mddevlp = &mddevlist; | |
82b27616 | 367 | |
db2d001c N |
368 | static int is_number(char *w) |
369 | { | |
370 | /* check if there are 1 or more digits and nothing else */ | |
371 | int digits = 0; | |
372 | while (*w && isdigit(*w)) { | |
373 | digits++; | |
374 | w++; | |
375 | } | |
376 | return (digits && ! *w); | |
377 | } | |
378 | ||
82b27616 NB |
379 | void arrayline(char *line) |
380 | { | |
52826846 NB |
381 | char *w; |
382 | ||
fa56eddb N |
383 | struct mddev_ident mis; |
384 | struct mddev_ident *mi; | |
52826846 NB |
385 | |
386 | mis.uuid_set = 0; | |
98c6faba NB |
387 | mis.super_minor = UnSet; |
388 | mis.level = UnSet; | |
389 | mis.raid_disks = UnSet; | |
4ccdb956 | 390 | mis.spare_disks = 0; |
52826846 NB |
391 | mis.devices = NULL; |
392 | mis.devname = NULL; | |
e0d19036 | 393 | mis.spare_group = NULL; |
dd0781e5 | 394 | mis.autof = 0; |
92919398 | 395 | mis.next = NULL; |
f277ce36 NB |
396 | mis.st = NULL; |
397 | mis.bitmap_fd = -1; | |
7ef02d01 | 398 | mis.bitmap_file = NULL; |
947fd4dd | 399 | mis.name[0] = 0; |
71d60c48 DW |
400 | mis.container = NULL; |
401 | mis.member = NULL; | |
52826846 NB |
402 | |
403 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
db2d001c N |
404 | if (w[0] == '/' || strchr(w, '=') == NULL) { |
405 | /* This names the device, or is '<ignore>'. | |
406 | * The rules match those in create_mddev. | |
407 | * 'w' must be: | |
408 | * /dev/md/{anything} | |
409 | * /dev/mdNN | |
410 | * /dev/md_dNN | |
411 | * <ignore> | |
412 | * or anything that doesn't start '/' or '<' | |
413 | */ | |
414 | if (strcasecmp(w, "<ignore>") == 0 || | |
415 | strncmp(w, "/dev/md/", 8) == 0 || | |
416 | (w[0] != '/' && w[0] != '<') || | |
417 | (strncmp(w, "/dev/md", 7) == 0 && | |
418 | is_number(w+7)) || | |
419 | (strncmp(w, "/dev/md_d", 9) == 0 && | |
420 | is_number(w+9)) | |
421 | ) { | |
422 | /* This is acceptable */; | |
423 | if (mis.devname) | |
424 | fprintf(stderr, Name ": only give one " | |
425 | "device per ARRAY line: %s and %s\n", | |
426 | mis.devname, w); | |
427 | else | |
428 | mis.devname = w; | |
429 | }else { | |
430 | fprintf(stderr, Name ": %s is an invalid name for " | |
431 | "an md device - ignored.\n", w); | |
432 | } | |
52826846 NB |
433 | } else if (strncasecmp(w, "uuid=", 5)==0 ) { |
434 | if (mis.uuid_set) | |
435 | fprintf(stderr, Name ": only specify uuid once, %s ignored.\n", | |
436 | w); | |
437 | else { | |
438 | if (parse_uuid(w+5, mis.uuid)) | |
439 | mis.uuid_set = 1; | |
440 | else | |
441 | fprintf(stderr, Name ": bad uuid: %s\n", w); | |
442 | } | |
443 | } else if (strncasecmp(w, "super-minor=", 12)==0 ) { | |
f277ce36 | 444 | if (mis.super_minor != UnSet) |
52826846 NB |
445 | fprintf(stderr, Name ": only specify super-minor once, %s ignored.\n", |
446 | w); | |
447 | else { | |
448 | char *endptr; | |
f21e18ca N |
449 | int minor = strtol(w+12, &endptr, 10); |
450 | ||
451 | if (w[12]==0 || endptr[0]!=0 || minor < 0) | |
52826846 NB |
452 | fprintf(stderr, Name ": invalid super-minor number: %s\n", |
453 | w); | |
f21e18ca N |
454 | else |
455 | mis.super_minor = minor; | |
52826846 | 456 | } |
947fd4dd NB |
457 | } else if (strncasecmp(w, "name=", 5)==0) { |
458 | if (mis.name[0]) | |
459 | fprintf(stderr, Name ": only specify name once, %s ignored.\n", | |
460 | w); | |
461 | else if (strlen(w+5) > 32) | |
462 | fprintf(stderr, Name ": name too long, ignoring %s\n", w); | |
463 | else | |
464 | strcpy(mis.name, w+5); | |
465 | ||
7ef02d01 NB |
466 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { |
467 | if (mis.bitmap_file) | |
468 | fprintf(stderr, Name ": only specify bitmap file once. %s ignored\n", | |
469 | w); | |
470 | else | |
d87d0978 | 471 | mis.bitmap_file = strdup(w+7); |
7ef02d01 | 472 | |
52826846 NB |
473 | } else if (strncasecmp(w, "devices=", 8 ) == 0 ) { |
474 | if (mis.devices) | |
475 | fprintf(stderr, Name ": only specify devices once (use a comma separated list). %s ignored\n", | |
476 | w); | |
477 | else | |
478 | mis.devices = strdup(w+8); | |
479 | } else if (strncasecmp(w, "spare-group=", 12) == 0 ) { | |
480 | if (mis.spare_group) | |
481 | fprintf(stderr, Name ": only specify one spare group per array. %s ignored.\n", | |
482 | w); | |
483 | else | |
484 | mis.spare_group = strdup(w+12); | |
cd29a5c8 NB |
485 | } else if (strncasecmp(w, "level=", 6) == 0 ) { |
486 | /* this is mainly for compatability with --brief output */ | |
487 | mis.level = map_name(pers, w+6); | |
488 | } else if (strncasecmp(w, "disks=", 6) == 0 ) { | |
489 | /* again, for compat */ | |
feb716e9 | 490 | mis.raid_disks = atoi(w+6); |
b83d95f3 NB |
491 | } else if (strncasecmp(w, "num-devices=", 12) == 0 ) { |
492 | /* again, for compat */ | |
feb716e9 NB |
493 | mis.raid_disks = atoi(w+12); |
494 | } else if (strncasecmp(w, "spares=", 7) == 0 ) { | |
495 | /* for warning if not all spares present */ | |
496 | mis.spare_disks = atoi(w+7); | |
f9ce90ba NB |
497 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
498 | /* style of metadata on the devices. */ | |
499 | int i; | |
aba69144 | 500 | |
82d9eba6 NB |
501 | for(i=0; superlist[i] && !mis.st; i++) |
502 | mis.st = superlist[i]->match_metadata_desc(w+9); | |
503 | ||
504 | if (!mis.st) | |
f9ce90ba | 505 | fprintf(stderr, Name ": metadata format %s unknown, ignored.\n", w+9); |
dd0781e5 NB |
506 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { |
507 | /* whether to create device special files as needed */ | |
f1ae21c4 | 508 | mis.autof = parse_auto(w+5, "auto type", 0); |
dbb44303 N |
509 | } else if (strncasecmp(w, "member=", 7) == 0) { |
510 | /* subarray within a container */ | |
511 | mis.member = strdup(w+7); | |
512 | } else if (strncasecmp(w, "container=", 10) == 0) { | |
1771a6e2 N |
513 | /* the container holding this subarray. Either a device name |
514 | * or a uuid */ | |
dbb44303 | 515 | mis.container = strdup(w+10); |
52826846 NB |
516 | } else { |
517 | fprintf(stderr, Name ": unrecognised word on ARRAY line: %s\n", | |
518 | w); | |
519 | } | |
520 | } | |
b1b12d58 N |
521 | if (mis.uuid_set == 0 && mis.devices == NULL && |
522 | mis.super_minor == UnSet && mis.name[0] == 0 && | |
aa7c284c | 523 | (mis.container == NULL || mis.member == NULL)) |
52826846 NB |
524 | fprintf(stderr, Name ": ARRAY line %s has no identity information.\n", mis.devname); |
525 | else { | |
526 | mi = malloc(sizeof(*mi)); | |
527 | *mi = mis; | |
fe056d1f | 528 | mi->devname = mis.devname ? strdup(mis.devname) : NULL; |
52826846 NB |
529 | mi->next = NULL; |
530 | *mddevlp = mi; | |
531 | mddevlp = &mi->next; | |
82b27616 | 532 | } |
82b27616 | 533 | } |
e0d19036 NB |
534 | |
535 | static char *alert_email = NULL; | |
536 | void mailline(char *line) | |
537 | { | |
538 | char *w; | |
539 | ||
540 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
541 | if (alert_email == NULL) | |
542 | alert_email = strdup(w); | |
543 | else | |
544 | fprintf(stderr, Name ": excess address on MAIL line: %s - ignored\n", | |
545 | w); | |
546 | } | |
547 | } | |
548 | ||
4948b8f7 NB |
549 | static char *alert_mail_from = NULL; |
550 | void mailfromline(char *line) | |
551 | { | |
552 | char *w; | |
553 | ||
554 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
555 | if (alert_mail_from == NULL) | |
556 | alert_mail_from = strdup(w); | |
557 | else { | |
3d2c4fc7 DW |
558 | char *t = NULL; |
559 | ||
78fbcc10 | 560 | if (xasprintf(&t, "%s %s", alert_mail_from, w) > 0) { |
3d2c4fc7 DW |
561 | free(alert_mail_from); |
562 | alert_mail_from = t; | |
563 | } | |
4948b8f7 NB |
564 | } |
565 | } | |
566 | } | |
567 | ||
e0d19036 NB |
568 | |
569 | static char *alert_program = NULL; | |
570 | void programline(char *line) | |
571 | { | |
572 | char *w; | |
573 | ||
574 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
575 | if (alert_program == NULL) | |
576 | alert_program = strdup(w); | |
577 | else | |
578 | fprintf(stderr, Name ": excess program on PROGRAM line: %s - ignored\n", | |
579 | w); | |
580 | } | |
581 | } | |
582 | ||
997aed5d | 583 | static char *home_host = NULL; |
0ac91628 | 584 | static int require_homehost = 1; |
997aed5d NB |
585 | void homehostline(char *line) |
586 | { | |
587 | char *w; | |
588 | ||
589 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
0ac91628 N |
590 | if (strcasecmp(w, "<ignore>")==0) |
591 | require_homehost = 0; | |
0f23aa88 N |
592 | else if (home_host == NULL) { |
593 | if (strcasecmp(w, "<none>")==0) | |
594 | home_host = strdup(""); | |
595 | else | |
596 | home_host = strdup(w); | |
597 | }else | |
997aed5d NB |
598 | fprintf(stderr, Name ": excess host name on HOMEHOST line: %s - ignored\n", |
599 | w); | |
600 | } | |
601 | } | |
602 | ||
4e8d9f0a N |
603 | char auto_yes[] = "yes"; |
604 | char auto_no[] = "no"; | |
605 | char auto_homehost[] = "homehost"; | |
606 | ||
607 | static int auto_seen = 0; | |
31015d57 N |
608 | void autoline(char *line) |
609 | { | |
4d0b563b | 610 | char *w; |
4e8d9f0a N |
611 | char *seen; |
612 | int super_cnt; | |
613 | char *dflt = auto_yes; | |
614 | int homehost = 0; | |
615 | int i; | |
4d0b563b | 616 | |
4e8d9f0a | 617 | if (auto_seen) { |
31015d57 N |
618 | fprintf(stderr, Name ": AUTO line may only be give once." |
619 | " Subsequent lines ignored\n"); | |
620 | return; | |
621 | } | |
4e8d9f0a N |
622 | /* Parse the 'auto' line creating policy statements for the 'auto' policy. |
623 | * | |
624 | * The default is 'yes' but the 'auto' line might over-ride that. | |
625 | * Words in the line are processed in order with the first | |
626 | * match winning. | |
627 | * word can be: | |
628 | * +version - that version can be assembled | |
629 | * -version - that version cannot be auto-assembled | |
630 | * yes or +all - any other version can be assembled | |
631 | * no or -all - no other version can be assembled. | |
632 | * homehost - any array associated by 'homehost' to this | |
633 | * host can be assembled. | |
634 | * | |
635 | * Thus: | |
636 | * +ddf -0.90 homehost -all | |
637 | * will auto-assemble any ddf array, no 0.90 array, and | |
638 | * any other array (imsm, 1.x) if and only if it is identified | |
639 | * as belonging to this host. | |
640 | * | |
641 | * We translate that to policy by creating 'auto=yes' when we see | |
642 | * a '+version' line, 'auto=no' if we see '-version' before 'homehost', | |
643 | * or 'auto=homehost' if we see '-version' after 'homehost'. | |
644 | * When we see yes, no, +all or -all we stop an any version that hasn't | |
645 | * been seen gets an appropriate auto= entry. | |
646 | */ | |
4d0b563b | 647 | |
4e8d9f0a N |
648 | for (super_cnt = 0; superlist[super_cnt]; super_cnt++) |
649 | ; | |
650 | seen = calloc(super_cnt, 1); | |
4d0b563b | 651 | |
4e8d9f0a N |
652 | for (w = dl_next(line); w != line ; w = dl_next(w)) { |
653 | char *val; | |
654 | ||
655 | if (strcasecmp(w, "yes") == 0) { | |
656 | dflt = auto_yes; | |
657 | break; | |
658 | } | |
659 | if (strcasecmp(w, "no") == 0) { | |
660 | if (homehost) | |
661 | dflt = auto_homehost; | |
662 | else | |
663 | dflt = auto_no; | |
664 | break; | |
665 | } | |
666 | if (strcasecmp(w, "homehost") == 0) { | |
667 | homehost = 1; | |
668 | continue; | |
669 | } | |
670 | if (w[0] == '+') | |
671 | val = auto_yes; | |
672 | else if (w[0] == '-') { | |
673 | if (homehost) | |
674 | val = auto_homehost; | |
675 | else | |
676 | val = auto_no; | |
677 | } else | |
678 | continue; | |
679 | ||
680 | if (strcasecmp(w+1, "all") == 0) { | |
681 | dflt = val; | |
682 | break; | |
683 | } | |
684 | for (i = 0; superlist[i]; i++) { | |
685 | const char *version = superlist[i]->name; | |
686 | if (strcasecmp(w+1, version) == 0) | |
687 | break; | |
688 | /* 1 matches 1.x, 0 matches 0.90 */ | |
689 | if (version[1] == '.' && | |
690 | strlen(w+1) == 1 && | |
691 | w[1] == version[0]) | |
692 | break; | |
693 | /* 1.anything matches 1.x */ | |
694 | if (strcmp(version, "1.x") == 0 && | |
695 | strncmp(w+1, "1.", 2) == 0) | |
696 | break; | |
697 | } | |
698 | if (superlist[i] == NULL) | |
699 | /* ignore this word */ | |
700 | continue; | |
701 | if (seen[i]) | |
702 | /* already know about this metadata */ | |
703 | continue; | |
704 | policy_add(rule_policy, pol_auto, val, pol_metadata, superlist[i]->name, NULL); | |
705 | seen[i] = 1; | |
4d0b563b | 706 | } |
4e8d9f0a N |
707 | for (i = 0; i < super_cnt; i++) |
708 | if (!seen[i]) | |
709 | policy_add(rule_policy, pol_auto, dflt, pol_metadata, superlist[i]->name, NULL); | |
31015d57 | 710 | } |
e0d19036 | 711 | |
82b27616 NB |
712 | int loaded = 0; |
713 | ||
8aec876d NB |
714 | static char *conffile = NULL; |
715 | void set_conffile(char *file) | |
716 | { | |
717 | conffile = file; | |
718 | } | |
719 | ||
720 | void load_conffile(void) | |
82b27616 | 721 | { |
52826846 NB |
722 | FILE *f; |
723 | char *line; | |
724 | ||
725 | if (loaded) return; | |
726 | if (conffile == NULL) | |
727 | conffile = DefaultConfFile; | |
728 | ||
d013a55e NB |
729 | if (strcmp(conffile, "none") == 0) { |
730 | loaded = 1; | |
731 | return; | |
732 | } | |
5787fa49 | 733 | if (strcmp(conffile, "partitions")==0) { |
b5687415 NB |
734 | char *list = dl_strdup("DEV"); |
735 | dl_init(list); | |
736 | dl_add(list, dl_strdup("partitions")); | |
737 | devline(list); | |
738 | free_line(list); | |
d013a55e | 739 | loaded = 1; |
5787fa49 NB |
740 | return; |
741 | } | |
52826846 | 742 | f = fopen(conffile, "r"); |
ce4fafd6 NB |
743 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. |
744 | * To allow Debian users to compile from clean source and still | |
745 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
746 | * if /etc/mdadm.conf doesn't exist | |
747 | */ | |
748 | if (f == NULL && | |
749 | conffile == DefaultConfFile) { | |
750 | f = fopen(DefaultAltConfFile, "r"); | |
751 | if (f) | |
752 | conffile = DefaultAltConfFile; | |
753 | } | |
754 | if (f == NULL) | |
52826846 NB |
755 | return; |
756 | ||
757 | loaded = 1; | |
758 | while ((line=conf_line(f))) { | |
759 | switch(match_keyword(line)) { | |
8fe9db0f | 760 | case Devices: |
52826846 NB |
761 | devline(line); |
762 | break; | |
8fe9db0f | 763 | case Array: |
52826846 NB |
764 | arrayline(line); |
765 | break; | |
8fe9db0f | 766 | case Mailaddr: |
e0d19036 NB |
767 | mailline(line); |
768 | break; | |
8fe9db0f | 769 | case Mailfrom: |
4948b8f7 NB |
770 | mailfromline(line); |
771 | break; | |
8fe9db0f NB |
772 | case Program: |
773 | programline(line); | |
774 | break; | |
775 | case CreateDev: | |
5bbb4842 NB |
776 | createline(line); |
777 | break; | |
997aed5d NB |
778 | case Homehost: |
779 | homehostline(line); | |
780 | break; | |
31015d57 N |
781 | case AutoMode: |
782 | autoline(line); | |
783 | break; | |
5527fc74 N |
784 | case Policy: |
785 | policyline(line, rule_policy); | |
786 | break; | |
787 | case PartPolicy: | |
788 | policyline(line, rule_part); | |
789 | break; | |
52826846 NB |
790 | default: |
791 | fprintf(stderr, Name ": Unknown keyword %s\n", line); | |
792 | } | |
793 | free_line(line); | |
82b27616 | 794 | } |
aba69144 | 795 | |
dd0781e5 | 796 | fclose(f); |
82b27616 NB |
797 | |
798 | /* printf("got file\n"); */ | |
799 | } | |
800 | ||
8aec876d | 801 | char *conf_get_mailaddr(void) |
e0d19036 | 802 | { |
8aec876d | 803 | load_conffile(); |
e0d19036 NB |
804 | return alert_email; |
805 | } | |
806 | ||
8aec876d | 807 | char *conf_get_mailfrom(void) |
4948b8f7 | 808 | { |
8aec876d | 809 | load_conffile(); |
4948b8f7 NB |
810 | return alert_mail_from; |
811 | } | |
812 | ||
8aec876d | 813 | char *conf_get_program(void) |
e0d19036 | 814 | { |
8aec876d | 815 | load_conffile(); |
e0d19036 NB |
816 | return alert_program; |
817 | } | |
818 | ||
0ac91628 | 819 | char *conf_get_homehost(int *require_homehostp) |
997aed5d | 820 | { |
8aec876d | 821 | load_conffile(); |
0ac91628 N |
822 | if (require_homehostp) |
823 | *require_homehostp = require_homehost; | |
997aed5d NB |
824 | return home_host; |
825 | } | |
826 | ||
8aec876d | 827 | struct createinfo *conf_get_create_info(void) |
5bbb4842 | 828 | { |
8aec876d | 829 | load_conffile(); |
5bbb4842 NB |
830 | return &createinfo; |
831 | } | |
82b27616 | 832 | |
fa56eddb | 833 | struct mddev_ident *conf_get_ident(char *dev) |
64c4757e | 834 | { |
fa56eddb | 835 | struct mddev_ident *rv; |
8aec876d | 836 | load_conffile(); |
52826846 | 837 | rv = mddevlist; |
fe056d1f | 838 | while (dev && rv && (rv->devname == NULL |
5c4c9ab1 | 839 | || !devname_matches(dev, rv->devname))) |
52826846 NB |
840 | rv = rv->next; |
841 | return rv; | |
64c4757e NB |
842 | } |
843 | ||
a655e550 | 844 | static void append_dlist(struct mddev_dev **dlp, struct mddev_dev *list) |
f64165f7 DW |
845 | { |
846 | while (*dlp) | |
847 | dlp = &(*dlp)->next; | |
848 | *dlp = list; | |
849 | } | |
850 | ||
a655e550 | 851 | struct mddev_dev *conf_get_devs() |
64c4757e | 852 | { |
52826846 NB |
853 | glob_t globbuf; |
854 | struct conf_dev *cd; | |
855 | int flags = 0; | |
a655e550 | 856 | static struct mddev_dev *dlist = NULL; |
98c6faba | 857 | unsigned int i; |
52826846 NB |
858 | |
859 | while (dlist) { | |
a655e550 | 860 | struct mddev_dev *t = dlist; |
52826846 NB |
861 | dlist = dlist->next; |
862 | free(t->devname); | |
863 | free(t); | |
864 | } | |
aba69144 | 865 | |
8aec876d | 866 | load_conffile(); |
a99d6b66 | 867 | |
f8f84cd5 DW |
868 | if (cdevlist == NULL) { |
869 | /* default to 'partitions' and 'containers' */ | |
a99d6b66 | 870 | dlist = load_partitions(); |
f8f84cd5 DW |
871 | append_dlist(&dlist, load_containers()); |
872 | } | |
a99d6b66 | 873 | |
52826846 | 874 | for (cd=cdevlist; cd; cd=cd->next) { |
f64165f7 DW |
875 | if (strcasecmp(cd->name, "partitions")==0) |
876 | append_dlist(&dlist, load_partitions()); | |
877 | else if (strcasecmp(cd->name, "containers")==0) | |
878 | append_dlist(&dlist, load_containers()); | |
057bd352 NB |
879 | else { |
880 | glob(cd->name, flags, NULL, &globbuf); | |
881 | flags |= GLOB_APPEND; | |
882 | } | |
52826846 | 883 | } |
e0d19036 NB |
884 | if (flags & GLOB_APPEND) { |
885 | for (i=0; i<globbuf.gl_pathc; i++) { | |
a655e550 | 886 | struct mddev_dev *t = malloc(sizeof(*t)); |
e0d19036 NB |
887 | t->devname = strdup(globbuf.gl_pathv[i]); |
888 | t->next = dlist; | |
da6b5ca9 | 889 | t->used = 0; |
e0d19036 | 890 | dlist = t; |
82b27616 | 891 | /* printf("one dev is %s\n", t->devname);*/ |
e0d19036 NB |
892 | } |
893 | globfree(&globbuf); | |
52826846 | 894 | } |
82b27616 | 895 | |
52826846 | 896 | return dlist; |
64c4757e NB |
897 | } |
898 | ||
8382f19b NB |
899 | int conf_test_dev(char *devname) |
900 | { | |
901 | struct conf_dev *cd; | |
902 | if (cdevlist == NULL) | |
903 | /* allow anything by default */ | |
904 | return 1; | |
905 | for (cd = cdevlist ; cd ; cd = cd->next) { | |
906 | if (strcasecmp(cd->name, "partitions") == 0) | |
907 | return 1; | |
908 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
909 | return 1; | |
910 | } | |
911 | return 0; | |
912 | } | |
913 | ||
4e8d9f0a | 914 | int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost) |
31015d57 | 915 | { |
4e8d9f0a N |
916 | /* If anyone said 'yes', that sticks. |
917 | * else if homehost applies, use that | |
918 | * else if there is a 'no', say 'no'. | |
919 | * else 'yes'. | |
31015d57 | 920 | */ |
4e8d9f0a N |
921 | struct dev_policy *p; |
922 | int no=0, found_auto=0; | |
31015d57 | 923 | load_conffile(); |
4e8d9f0a N |
924 | |
925 | pol = pol_find(pol, pol_auto); | |
926 | pol_for_each(p, pol, version) { | |
927 | if (strcmp(p->value, "yes") == 0) | |
31015d57 | 928 | return 1; |
4e8d9f0a N |
929 | if (strcmp(p->value, "auto") == 0) |
930 | found_auto = 1; | |
931 | if (strcmp(p->value, "no") == 0) | |
932 | no = 1; | |
31015d57 | 933 | } |
4e8d9f0a N |
934 | if (is_homehost && found_auto) |
935 | return 1; | |
936 | if (no) | |
937 | return 0; | |
31015d57 N |
938 | return 1; |
939 | } | |
8382f19b | 940 | |
52826846 NB |
941 | int match_oneof(char *devices, char *devname) |
942 | { | |
943 | /* check if one of the comma separated patterns in devices | |
944 | * matches devname | |
945 | */ | |
946 | ||
52826846 NB |
947 | while (devices && *devices) { |
948 | char patn[1024]; | |
949 | char *p = devices; | |
950 | devices = strchr(devices, ','); | |
951 | if (!devices) | |
952 | devices = p + strlen(p); | |
953 | if (devices-p < 1024) { | |
954 | strncpy(patn, p, devices-p); | |
955 | patn[devices-p] = 0; | |
956 | if (fnmatch(patn, devname, FNM_PATHNAME)==0) | |
957 | return 1; | |
958 | } | |
959 | if (*devices == ',') | |
960 | devices++; | |
961 | } | |
962 | return 0; | |
963 | } | |
0ac91628 N |
964 | |
965 | int devname_matches(char *name, char *match) | |
966 | { | |
967 | /* See if the given array name matches the | |
968 | * given match from config file. | |
969 | * | |
970 | * First strip and /dev/md/ or /dev/, then | |
971 | * see if there might be a numeric match of | |
972 | * mdNN with NN | |
973 | * then just strcmp | |
974 | */ | |
975 | if (strncmp(name, "/dev/md/", 8) == 0) | |
976 | name += 8; | |
977 | else if (strncmp(name, "/dev/", 5) == 0) | |
978 | name += 5; | |
979 | ||
980 | if (strncmp(match, "/dev/md/", 8) == 0) | |
981 | match += 8; | |
982 | else if (strncmp(match, "/dev/", 5) == 0) | |
983 | match += 5; | |
984 | ||
985 | ||
986 | if (strncmp(name, "md", 2) == 0 && | |
987 | isdigit(name[2])) | |
988 | name += 2; | |
989 | if (strncmp(match, "md", 2) == 0 && | |
990 | isdigit(match[2])) | |
991 | match += 2; | |
992 | ||
993 | return (strcmp(name, match) == 0); | |
994 | } | |
995 | ||
996 | int conf_name_is_free(char *name) | |
997 | { | |
998 | /* Check if this name is already take by an ARRAY entry in | |
999 | * the config file. | |
1000 | * It can be taken either by a match on devname, name, or | |
1001 | * even super-minor. | |
1002 | */ | |
fa56eddb | 1003 | struct mddev_ident *dev; |
0ac91628 N |
1004 | |
1005 | load_conffile(); | |
1006 | for (dev = mddevlist; dev; dev = dev->next) { | |
1007 | char nbuf[100]; | |
1008 | if (dev->devname && devname_matches(name, dev->devname)) | |
1009 | return 0; | |
1010 | if (dev->name[0] && devname_matches(name, dev->name)) | |
1011 | return 0; | |
1012 | sprintf(nbuf, "%d", dev->super_minor); | |
1013 | if (dev->super_minor != UnSet && | |
1014 | devname_matches(name, nbuf)) | |
1015 | return 0; | |
1016 | } | |
1017 | return 1; | |
1018 | } | |
360b4636 | 1019 | |
fa56eddb | 1020 | struct mddev_ident *conf_match(struct mdinfo *info, struct supertype *st) |
360b4636 | 1021 | { |
fa56eddb | 1022 | struct mddev_ident *array_list, *match; |
360b4636 N |
1023 | int verbose = 0; |
1024 | char *devname = NULL; | |
1025 | array_list = conf_get_ident(NULL); | |
1026 | match = NULL; | |
1027 | for (; array_list; array_list = array_list->next) { | |
1028 | if (array_list->uuid_set && | |
1029 | same_uuid(array_list->uuid, info->uuid, st->ss->swapuuid) | |
1030 | == 0) { | |
1031 | if (verbose >= 2 && array_list->devname) | |
1032 | fprintf(stderr, Name | |
1033 | ": UUID differs from %s.\n", | |
1034 | array_list->devname); | |
1035 | continue; | |
1036 | } | |
1037 | if (array_list->name[0] && | |
1038 | strcasecmp(array_list->name, info->name) != 0) { | |
1039 | if (verbose >= 2 && array_list->devname) | |
1040 | fprintf(stderr, Name | |
1041 | ": Name differs from %s.\n", | |
1042 | array_list->devname); | |
1043 | continue; | |
1044 | } | |
1045 | if (array_list->devices && devname && | |
1046 | !match_oneof(array_list->devices, devname)) { | |
1047 | if (verbose >= 2 && array_list->devname) | |
1048 | fprintf(stderr, Name | |
1049 | ": Not a listed device for %s.\n", | |
1050 | array_list->devname); | |
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) | |
1056 | fprintf(stderr, Name | |
1057 | ": Different super-minor to %s.\n", | |
1058 | array_list->devname); | |
1059 | continue; | |
1060 | } | |
1061 | if (!array_list->uuid_set && | |
1062 | !array_list->name[0] && | |
1063 | !array_list->devices && | |
1064 | array_list->super_minor == UnSet) { | |
1065 | if (verbose >= 2 && array_list->devname) | |
1066 | fprintf(stderr, Name | |
1067 | ": %s doesn't have any identifying information.\n", | |
1068 | array_list->devname); | |
1069 | continue; | |
1070 | } | |
1071 | /* FIXME, should I check raid_disks and level too?? */ | |
1072 | ||
1073 | if (match) { | |
1074 | if (verbose >= 0) { | |
1075 | if (match->devname && array_list->devname) | |
1076 | fprintf(stderr, Name | |
1077 | ": we match both %s and %s - cannot decide which to use.\n", | |
1078 | match->devname, array_list->devname); | |
1079 | else | |
1080 | fprintf(stderr, Name | |
1081 | ": multiple lines in mdadm.conf match\n"); | |
1082 | } | |
1083 | return NULL; | |
1084 | } | |
1085 | match = array_list; | |
1086 | } | |
1087 | return match; | |
1088 | } |