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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 | 65 | */ |
cf80bce8 KR |
66 | #ifndef _POSIX_C_SOURCE |
67 | #define _POSIX_C_SOURCE 200809L | |
68 | #endif | |
64c4757e | 69 | |
11a3e71d NB |
70 | #ifndef CONFFILE |
71 | #define CONFFILE "/etc/mdadm.conf" | |
72 | #endif | |
ce4fafd6 NB |
73 | #ifndef CONFFILE2 |
74 | /* for Debian compatibility .... */ | |
75 | #define CONFFILE2 "/etc/mdadm/mdadm.conf" | |
76 | #endif | |
11a3e71d | 77 | char DefaultConfFile[] = CONFFILE; |
9dc70cbc | 78 | char DefaultConfDir[] = CONFFILE ".d"; |
ce4fafd6 | 79 | char DefaultAltConfFile[] = CONFFILE2; |
9dc70cbc | 80 | char DefaultAltConfDir[] = CONFFILE2 ".d"; |
64c4757e | 81 | |
31015d57 | 82 | enum linetype { Devices, Array, Mailaddr, Mailfrom, Program, CreateDev, |
7716570e | 83 | Homehost, HomeCluster, AutoMode, Policy, PartPolicy, 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", |
7716570e | 92 | [HomeCluster] = "homecluster", |
31015d57 | 93 | [AutoMode] = "auto", |
5527fc74 N |
94 | [Policy] = "policy", |
95 | [PartPolicy]="part-policy", | |
8fe9db0f NB |
96 | [LTEnd] = NULL |
97 | }; | |
82b27616 NB |
98 | |
99 | /* | |
100 | * match_keyword returns an index into the keywords array, or -1 for no match | |
101 | * case is ignored, and at least three characters must be given | |
102 | */ | |
103 | ||
104 | int match_keyword(char *word) | |
105 | { | |
52826846 NB |
106 | int len = strlen(word); |
107 | int n; | |
aba69144 | 108 | |
52826846 NB |
109 | if (len < 3) return -1; |
110 | for (n=0; keywords[n]; n++) { | |
111 | if (strncasecmp(word, keywords[n], len)==0) | |
112 | return n; | |
113 | } | |
114 | return -1; | |
82b27616 NB |
115 | } |
116 | ||
82b27616 | 117 | struct conf_dev { |
5d500228 N |
118 | struct conf_dev *next; |
119 | char *name; | |
82b27616 NB |
120 | } *cdevlist = NULL; |
121 | ||
a655e550 | 122 | struct mddev_dev *load_partitions(void) |
5787fa49 NB |
123 | { |
124 | FILE *f = fopen("/proc/partitions", "r"); | |
125 | char buf[1024]; | |
a655e550 | 126 | struct mddev_dev *rv = NULL; |
5787fa49 | 127 | if (f == NULL) { |
e7b84f9d | 128 | pr_err("cannot open /proc/partitions\n"); |
057bd352 | 129 | return NULL; |
5787fa49 NB |
130 | } |
131 | while (fgets(buf, 1024, f)) { | |
132 | int major, minor; | |
98c6faba | 133 | char *name, *mp; |
a655e550 | 134 | struct mddev_dev *d; |
8b0dabea | 135 | |
5787fa49 NB |
136 | buf[1023] = '\0'; |
137 | if (buf[0] != ' ') | |
138 | continue; | |
98c6faba | 139 | major = strtoul(buf, &mp, 10); |
aba69144 | 140 | if (mp == buf || *mp != ' ') |
5787fa49 | 141 | continue; |
98c6faba NB |
142 | minor = strtoul(mp, NULL, 10); |
143 | ||
16c6fa80 | 144 | name = map_dev(major, minor, 1); |
e81cdd9f NB |
145 | if (!name) |
146 | continue; | |
6a674388 | 147 | d = xcalloc(1, sizeof(*d)); |
503975b9 | 148 | d->devname = xstrdup(name); |
8b0dabea NB |
149 | d->next = rv; |
150 | rv = d; | |
5787fa49 | 151 | } |
dd0781e5 | 152 | fclose(f); |
057bd352 | 153 | return rv; |
5787fa49 | 154 | } |
82b27616 | 155 | |
a655e550 | 156 | struct mddev_dev *load_containers(void) |
f64165f7 | 157 | { |
b4924f46 | 158 | struct mdstat_ent *mdstat = mdstat_read(0, 0); |
f64165f7 | 159 | struct mdstat_ent *ent; |
a655e550 N |
160 | struct mddev_dev *d; |
161 | struct mddev_dev *rv = NULL; | |
eb2306f8 | 162 | struct map_ent *map = NULL, *me; |
f64165f7 DW |
163 | |
164 | if (!mdstat) | |
165 | return NULL; | |
166 | ||
167 | for (ent = mdstat; ent; ent = ent->next) | |
168 | if (ent->metadata_version && | |
169 | strncmp(ent->metadata_version, "external:", 9) == 0 && | |
170 | !is_subarray(&ent->metadata_version[9])) { | |
6a674388 | 171 | d = xcalloc(1, sizeof(*d)); |
9581efb1 | 172 | me = map_by_devnm(&map, ent->devnm); |
eb2306f8 N |
173 | if (me) |
174 | d->devname = xstrdup(me->path); | |
9581efb1 | 175 | else if (asprintf(&d->devname, "/dev/%s", ent->devnm) < 0) { |
f64165f7 DW |
176 | free(d); |
177 | continue; | |
178 | } | |
179 | d->next = rv; | |
f64165f7 DW |
180 | rv = d; |
181 | } | |
182 | free_mdstat(mdstat); | |
eb2306f8 | 183 | map_free(map); |
f64165f7 DW |
184 | |
185 | return rv; | |
186 | } | |
187 | ||
5bbb4842 | 188 | struct createinfo createinfo = { |
75723446 | 189 | .autof = 2, /* by default, create devices with standard names */ |
38098016 | 190 | .symlinks = 1, |
eca944fa | 191 | .names = 0, /* By default, stick with numbered md devices. */ |
e2efe9e7 | 192 | .bblist = 1, /* Use a bad block list by default */ |
5bbb4842 NB |
193 | #ifdef DEBIAN |
194 | .gid = 6, /* disk */ | |
195 | .mode = 0660, | |
196 | #else | |
197 | .mode = 0600, | |
198 | #endif | |
199 | }; | |
200 | ||
f1ae21c4 | 201 | int parse_auto(char *str, char *msg, int config) |
5bbb4842 NB |
202 | { |
203 | int autof; | |
204 | if (str == NULL || *str == 0) | |
f1ae21c4 | 205 | autof = 2; |
5bbb4842 | 206 | else if (strcasecmp(str,"no")==0) |
f1ae21c4 | 207 | autof = 1; |
5bbb4842 | 208 | else if (strcasecmp(str,"yes")==0) |
f1ae21c4 | 209 | autof = 2; |
5bbb4842 | 210 | else if (strcasecmp(str,"md")==0) |
f1ae21c4 | 211 | autof = config?5:3; |
5bbb4842 NB |
212 | else { |
213 | /* There might be digits, and maybe a hypen, at the end */ | |
214 | char *e = str + strlen(str); | |
215 | int num = 4; | |
216 | int len; | |
217 | while (e > str && isdigit(e[-1])) | |
218 | e--; | |
219 | if (*e) { | |
220 | num = atoi(e); | |
221 | if (num <= 0) num = 1; | |
222 | } | |
223 | if (e > str && e[-1] == '-') | |
224 | e--; | |
225 | len = e - str; | |
f1ae21c4 NB |
226 | if ((len == 2 && strncasecmp(str,"md",2)==0)) { |
227 | autof = config ? 5 : 3; | |
6ba83b5f NB |
228 | } else if ((len == 3 && strncasecmp(str,"yes",3)==0)) { |
229 | autof = 2; | |
f1ae21c4 NB |
230 | } else if ((len == 3 && strncasecmp(str,"mdp",3)==0)) { |
231 | autof = config ? 6 : 4; | |
232 | } else if ((len == 1 && strncasecmp(str,"p",1)==0) || | |
233 | (len >= 4 && strncasecmp(str,"part",4)==0)) { | |
234 | autof = 6; | |
235 | } else { | |
e7b84f9d | 236 | pr_err("%s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" |
5bbb4842 NB |
237 | " optionally followed by a number.\n", |
238 | msg, str); | |
239 | exit(2); | |
240 | } | |
f1ae21c4 | 241 | autof |= num << 3; |
5bbb4842 NB |
242 | } |
243 | return autof; | |
244 | } | |
f1ae21c4 | 245 | |
5bbb4842 NB |
246 | static void createline(char *line) |
247 | { | |
248 | char *w; | |
249 | char *ep; | |
250 | ||
251 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
252 | if (strncasecmp(w, "auto=", 5) == 0) | |
f1ae21c4 | 253 | createinfo.autof = parse_auto(w+5, "auto=", 1); |
5bbb4842 NB |
254 | else if (strncasecmp(w, "owner=", 6) == 0) { |
255 | if (w[6] == 0) { | |
e7b84f9d | 256 | pr_err("missing owner name\n"); |
5bbb4842 NB |
257 | continue; |
258 | } | |
259 | createinfo.uid = strtoul(w+6, &ep, 10); | |
260 | if (*ep != 0) { | |
5bbb4842 NB |
261 | struct passwd *pw; |
262 | /* must be a name */ | |
263 | pw = getpwnam(w+6); | |
264 | if (pw) | |
265 | createinfo.uid = pw->pw_uid; | |
266 | else | |
e7b84f9d | 267 | pr_err("CREATE user %s not found\n", w+6); |
5bbb4842 NB |
268 | } |
269 | } else if (strncasecmp(w, "group=", 6) == 0) { | |
270 | if (w[6] == 0) { | |
e7b84f9d | 271 | pr_err("missing group name\n"); |
5bbb4842 NB |
272 | continue; |
273 | } | |
274 | createinfo.gid = strtoul(w+6, &ep, 10); | |
275 | if (*ep != 0) { | |
5bbb4842 NB |
276 | struct group *gr; |
277 | /* must be a name */ | |
278 | gr = getgrnam(w+6); | |
279 | if (gr) | |
280 | createinfo.gid = gr->gr_gid; | |
281 | else | |
e7b84f9d | 282 | pr_err("CREATE group %s not found\n", w+6); |
5bbb4842 NB |
283 | } |
284 | } else if (strncasecmp(w, "mode=", 5) == 0) { | |
285 | if (w[5] == 0) { | |
e7b84f9d | 286 | pr_err("missing CREATE mode\n"); |
5bbb4842 NB |
287 | continue; |
288 | } | |
289 | createinfo.mode = strtoul(w+5, &ep, 8); | |
290 | if (*ep != 0) { | |
291 | createinfo.mode = 0600; | |
e7b84f9d | 292 | pr_err("unrecognised CREATE mode %s\n", |
5bbb4842 NB |
293 | w+5); |
294 | } | |
058574b1 NB |
295 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
296 | /* style of metadata to use by default */ | |
297 | int i; | |
298 | for (i=0; superlist[i] && !createinfo.supertype; i++) | |
299 | createinfo.supertype = | |
300 | superlist[i]->match_metadata_desc(w+9); | |
301 | if (!createinfo.supertype) | |
e7b84f9d | 302 | pr_err("metadata format %s unknown, ignoring\n", |
058574b1 | 303 | w+9); |
38098016 NB |
304 | } else if (strncasecmp(w, "symlinks=yes", 12) == 0) |
305 | createinfo.symlinks = 1; | |
306 | else if (strncasecmp(w, "symlinks=no", 11) == 0) | |
307 | createinfo.symlinks = 0; | |
eca944fa N |
308 | else if (strncasecmp(w, "names=yes", 12) == 0) |
309 | createinfo.names = 1; | |
310 | else if (strncasecmp(w, "names=no", 11) == 0) | |
311 | createinfo.names = 0; | |
e2efe9e7 N |
312 | else if (strncasecmp(w, "bbl=no", 11) == 0) |
313 | createinfo.bblist = 0; | |
314 | else if (strncasecmp(w, "bbl=yes", 11) == 0) | |
315 | createinfo.bblist = 1; | |
38098016 | 316 | else { |
e7b84f9d | 317 | pr_err("unrecognised word on CREATE line: %s\n", |
5bbb4842 NB |
318 | w); |
319 | } | |
320 | } | |
321 | } | |
82b27616 | 322 | |
aba69144 | 323 | void devline(char *line) |
82b27616 | 324 | { |
52826846 NB |
325 | char *w; |
326 | struct conf_dev *cd; | |
327 | ||
328 | for (w=dl_next(line); w != line; w=dl_next(w)) { | |
f64165f7 DW |
329 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0 || |
330 | strcasecmp(w, "containers") == 0) { | |
503975b9 N |
331 | cd = xmalloc(sizeof(*cd)); |
332 | cd->name = xstrdup(w); | |
52826846 NB |
333 | cd->next = cdevlist; |
334 | cdevlist = cd; | |
335 | } else { | |
e7b84f9d | 336 | pr_err("unreconised word on DEVICE line: %s\n", |
52826846 NB |
337 | w); |
338 | } | |
82b27616 | 339 | } |
82b27616 NB |
340 | } |
341 | ||
fa56eddb N |
342 | struct mddev_ident *mddevlist = NULL; |
343 | struct mddev_ident **mddevlp = &mddevlist; | |
82b27616 | 344 | |
db2d001c N |
345 | static int is_number(char *w) |
346 | { | |
347 | /* check if there are 1 or more digits and nothing else */ | |
348 | int digits = 0; | |
349 | while (*w && isdigit(*w)) { | |
350 | digits++; | |
351 | w++; | |
352 | } | |
353 | return (digits && ! *w); | |
354 | } | |
355 | ||
82b27616 NB |
356 | void arrayline(char *line) |
357 | { | |
52826846 NB |
358 | char *w; |
359 | ||
fa56eddb N |
360 | struct mddev_ident mis; |
361 | struct mddev_ident *mi; | |
52826846 NB |
362 | |
363 | mis.uuid_set = 0; | |
98c6faba NB |
364 | mis.super_minor = UnSet; |
365 | mis.level = UnSet; | |
366 | mis.raid_disks = UnSet; | |
4ccdb956 | 367 | mis.spare_disks = 0; |
52826846 NB |
368 | mis.devices = NULL; |
369 | mis.devname = NULL; | |
e0d19036 | 370 | mis.spare_group = NULL; |
dd0781e5 | 371 | mis.autof = 0; |
92919398 | 372 | mis.next = NULL; |
f277ce36 NB |
373 | mis.st = NULL; |
374 | mis.bitmap_fd = -1; | |
7ef02d01 | 375 | mis.bitmap_file = NULL; |
947fd4dd | 376 | mis.name[0] = 0; |
71d60c48 DW |
377 | mis.container = NULL; |
378 | mis.member = NULL; | |
52826846 NB |
379 | |
380 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
db2d001c N |
381 | if (w[0] == '/' || strchr(w, '=') == NULL) { |
382 | /* This names the device, or is '<ignore>'. | |
383 | * The rules match those in create_mddev. | |
384 | * 'w' must be: | |
385 | * /dev/md/{anything} | |
386 | * /dev/mdNN | |
387 | * /dev/md_dNN | |
388 | * <ignore> | |
389 | * or anything that doesn't start '/' or '<' | |
390 | */ | |
391 | if (strcasecmp(w, "<ignore>") == 0 || | |
392 | strncmp(w, "/dev/md/", 8) == 0 || | |
393 | (w[0] != '/' && w[0] != '<') || | |
1011e834 | 394 | (strncmp(w, "/dev/md", 7) == 0 && |
db2d001c N |
395 | is_number(w+7)) || |
396 | (strncmp(w, "/dev/md_d", 9) == 0 && | |
397 | is_number(w+9)) | |
398 | ) { | |
399 | /* This is acceptable */; | |
400 | if (mis.devname) | |
7a862a02 | 401 | pr_err("only give one device per ARRAY line: %s and %s\n", |
db2d001c N |
402 | mis.devname, w); |
403 | else | |
404 | mis.devname = w; | |
405 | }else { | |
7a862a02 | 406 | pr_err("%s is an invalid name for an md device - ignored.\n", w); |
db2d001c | 407 | } |
52826846 NB |
408 | } else if (strncasecmp(w, "uuid=", 5)==0 ) { |
409 | if (mis.uuid_set) | |
e7b84f9d | 410 | pr_err("only specify uuid once, %s ignored.\n", |
52826846 NB |
411 | w); |
412 | else { | |
413 | if (parse_uuid(w+5, mis.uuid)) | |
414 | mis.uuid_set = 1; | |
415 | else | |
e7b84f9d | 416 | pr_err("bad uuid: %s\n", w); |
52826846 NB |
417 | } |
418 | } else if (strncasecmp(w, "super-minor=", 12)==0 ) { | |
f277ce36 | 419 | if (mis.super_minor != UnSet) |
e7b84f9d | 420 | pr_err("only specify super-minor once, %s ignored.\n", |
52826846 NB |
421 | w); |
422 | else { | |
423 | char *endptr; | |
f21e18ca N |
424 | int minor = strtol(w+12, &endptr, 10); |
425 | ||
426 | if (w[12]==0 || endptr[0]!=0 || minor < 0) | |
e7b84f9d | 427 | pr_err("invalid super-minor number: %s\n", |
52826846 | 428 | w); |
f21e18ca N |
429 | else |
430 | mis.super_minor = minor; | |
52826846 | 431 | } |
947fd4dd NB |
432 | } else if (strncasecmp(w, "name=", 5)==0) { |
433 | if (mis.name[0]) | |
e7b84f9d | 434 | pr_err("only specify name once, %s ignored.\n", |
947fd4dd NB |
435 | w); |
436 | else if (strlen(w+5) > 32) | |
e7b84f9d | 437 | pr_err("name too long, ignoring %s\n", w); |
947fd4dd NB |
438 | else |
439 | strcpy(mis.name, w+5); | |
440 | ||
7ef02d01 NB |
441 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { |
442 | if (mis.bitmap_file) | |
e7b84f9d | 443 | pr_err("only specify bitmap file once. %s ignored\n", |
7ef02d01 NB |
444 | w); |
445 | else | |
503975b9 | 446 | mis.bitmap_file = xstrdup(w+7); |
7ef02d01 | 447 | |
52826846 NB |
448 | } else if (strncasecmp(w, "devices=", 8 ) == 0 ) { |
449 | if (mis.devices) | |
e7b84f9d | 450 | pr_err("only specify devices once (use a comma separated list). %s ignored\n", |
52826846 NB |
451 | w); |
452 | else | |
503975b9 | 453 | mis.devices = xstrdup(w+8); |
52826846 NB |
454 | } else if (strncasecmp(w, "spare-group=", 12) == 0 ) { |
455 | if (mis.spare_group) | |
e7b84f9d | 456 | pr_err("only specify one spare group per array. %s ignored.\n", |
52826846 NB |
457 | w); |
458 | else | |
503975b9 | 459 | mis.spare_group = xstrdup(w+12); |
cd29a5c8 NB |
460 | } else if (strncasecmp(w, "level=", 6) == 0 ) { |
461 | /* this is mainly for compatability with --brief output */ | |
462 | mis.level = map_name(pers, w+6); | |
463 | } else if (strncasecmp(w, "disks=", 6) == 0 ) { | |
464 | /* again, for compat */ | |
feb716e9 | 465 | mis.raid_disks = atoi(w+6); |
b83d95f3 NB |
466 | } else if (strncasecmp(w, "num-devices=", 12) == 0 ) { |
467 | /* again, for compat */ | |
feb716e9 NB |
468 | mis.raid_disks = atoi(w+12); |
469 | } else if (strncasecmp(w, "spares=", 7) == 0 ) { | |
470 | /* for warning if not all spares present */ | |
471 | mis.spare_disks = atoi(w+7); | |
f9ce90ba NB |
472 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
473 | /* style of metadata on the devices. */ | |
474 | int i; | |
aba69144 | 475 | |
82d9eba6 NB |
476 | for(i=0; superlist[i] && !mis.st; i++) |
477 | mis.st = superlist[i]->match_metadata_desc(w+9); | |
478 | ||
479 | if (!mis.st) | |
e7b84f9d | 480 | pr_err("metadata format %s unknown, ignored.\n", w+9); |
dd0781e5 NB |
481 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { |
482 | /* whether to create device special files as needed */ | |
f1ae21c4 | 483 | mis.autof = parse_auto(w+5, "auto type", 0); |
dbb44303 N |
484 | } else if (strncasecmp(w, "member=", 7) == 0) { |
485 | /* subarray within a container */ | |
503975b9 | 486 | mis.member = xstrdup(w+7); |
dbb44303 | 487 | } else if (strncasecmp(w, "container=", 10) == 0) { |
1771a6e2 N |
488 | /* the container holding this subarray. Either a device name |
489 | * or a uuid */ | |
503975b9 | 490 | mis.container = xstrdup(w+10); |
52826846 | 491 | } else { |
e7b84f9d | 492 | pr_err("unrecognised word on ARRAY line: %s\n", |
52826846 NB |
493 | w); |
494 | } | |
495 | } | |
b1b12d58 N |
496 | if (mis.uuid_set == 0 && mis.devices == NULL && |
497 | mis.super_minor == UnSet && mis.name[0] == 0 && | |
aa7c284c | 498 | (mis.container == NULL || mis.member == NULL)) |
e7b84f9d | 499 | pr_err("ARRAY line %s has no identity information.\n", mis.devname); |
52826846 | 500 | else { |
503975b9 | 501 | mi = xmalloc(sizeof(*mi)); |
52826846 | 502 | *mi = mis; |
503975b9 | 503 | mi->devname = mis.devname ? xstrdup(mis.devname) : NULL; |
52826846 NB |
504 | mi->next = NULL; |
505 | *mddevlp = mi; | |
506 | mddevlp = &mi->next; | |
82b27616 | 507 | } |
82b27616 | 508 | } |
e0d19036 NB |
509 | |
510 | static char *alert_email = NULL; | |
511 | void mailline(char *line) | |
512 | { | |
513 | char *w; | |
514 | ||
3c6e95c1 | 515 | for (w=dl_next(line); w != line ; w=dl_next(w)) |
e0d19036 | 516 | if (alert_email == NULL) |
503975b9 | 517 | alert_email = xstrdup(w); |
e0d19036 NB |
518 | } |
519 | ||
4948b8f7 NB |
520 | static char *alert_mail_from = NULL; |
521 | void mailfromline(char *line) | |
522 | { | |
523 | char *w; | |
524 | ||
525 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
526 | if (alert_mail_from == NULL) | |
503975b9 | 527 | alert_mail_from = xstrdup(w); |
4948b8f7 | 528 | else { |
3d2c4fc7 DW |
529 | char *t = NULL; |
530 | ||
78fbcc10 | 531 | if (xasprintf(&t, "%s %s", alert_mail_from, w) > 0) { |
3d2c4fc7 DW |
532 | free(alert_mail_from); |
533 | alert_mail_from = t; | |
534 | } | |
4948b8f7 NB |
535 | } |
536 | } | |
537 | } | |
538 | ||
e0d19036 NB |
539 | static char *alert_program = NULL; |
540 | void programline(char *line) | |
541 | { | |
542 | char *w; | |
543 | ||
3c6e95c1 | 544 | for (w=dl_next(line); w != line ; w=dl_next(w)) |
e0d19036 | 545 | if (alert_program == NULL) |
503975b9 | 546 | alert_program = xstrdup(w); |
e0d19036 NB |
547 | } |
548 | ||
997aed5d | 549 | static char *home_host = NULL; |
0ac91628 | 550 | static int require_homehost = 1; |
997aed5d NB |
551 | void homehostline(char *line) |
552 | { | |
553 | char *w; | |
554 | ||
555 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
0ac91628 N |
556 | if (strcasecmp(w, "<ignore>")==0) |
557 | require_homehost = 0; | |
0f23aa88 N |
558 | else if (home_host == NULL) { |
559 | if (strcasecmp(w, "<none>")==0) | |
503975b9 | 560 | home_host = xstrdup(""); |
0f23aa88 | 561 | else |
503975b9 | 562 | home_host = xstrdup(w); |
3c6e95c1 | 563 | } |
997aed5d NB |
564 | } |
565 | } | |
566 | ||
7716570e GJ |
567 | static char *home_cluster = NULL; |
568 | void homeclusterline(char *line) | |
569 | { | |
570 | char *w; | |
571 | ||
572 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
573 | if (home_cluster == NULL) { | |
574 | if (strcasecmp(w, "<none>")==0) | |
575 | home_cluster = xstrdup(""); | |
576 | else | |
577 | home_cluster = xstrdup(w); | |
578 | } | |
579 | } | |
580 | } | |
581 | ||
4e8d9f0a N |
582 | char auto_yes[] = "yes"; |
583 | char auto_no[] = "no"; | |
584 | char auto_homehost[] = "homehost"; | |
585 | ||
586 | static int auto_seen = 0; | |
31015d57 N |
587 | void autoline(char *line) |
588 | { | |
4d0b563b | 589 | char *w; |
4e8d9f0a N |
590 | char *seen; |
591 | int super_cnt; | |
592 | char *dflt = auto_yes; | |
593 | int homehost = 0; | |
594 | int i; | |
4d0b563b | 595 | |
3c6e95c1 | 596 | if (auto_seen) |
31015d57 | 597 | return; |
dbdf3f15 | 598 | auto_seen = 1; |
3c6e95c1 | 599 | |
4e8d9f0a N |
600 | /* Parse the 'auto' line creating policy statements for the 'auto' policy. |
601 | * | |
602 | * The default is 'yes' but the 'auto' line might over-ride that. | |
603 | * Words in the line are processed in order with the first | |
604 | * match winning. | |
605 | * word can be: | |
606 | * +version - that version can be assembled | |
607 | * -version - that version cannot be auto-assembled | |
608 | * yes or +all - any other version can be assembled | |
609 | * no or -all - no other version can be assembled. | |
610 | * homehost - any array associated by 'homehost' to this | |
611 | * host can be assembled. | |
612 | * | |
613 | * Thus: | |
614 | * +ddf -0.90 homehost -all | |
615 | * will auto-assemble any ddf array, no 0.90 array, and | |
616 | * any other array (imsm, 1.x) if and only if it is identified | |
617 | * as belonging to this host. | |
618 | * | |
619 | * We translate that to policy by creating 'auto=yes' when we see | |
620 | * a '+version' line, 'auto=no' if we see '-version' before 'homehost', | |
621 | * or 'auto=homehost' if we see '-version' after 'homehost'. | |
b10c663e | 622 | * When we see yes, no, +all or -all we stop and any version that hasn't |
4e8d9f0a N |
623 | * been seen gets an appropriate auto= entry. |
624 | */ | |
4d0b563b | 625 | |
2dfb675b N |
626 | /* If environment variable MDADM_CONF_AUTO is defined, then |
627 | * it is prepended to the auto line. This allow a script | |
628 | * to easily disable some metadata types. | |
629 | */ | |
630 | w = getenv("MDADM_CONF_AUTO"); | |
631 | if (w && *w) { | |
632 | char *l = xstrdup(w); | |
633 | char *head = line; | |
634 | w = strtok(l, " \t"); | |
635 | while (w) { | |
636 | char *nw = dl_strdup(w); | |
637 | dl_insert(head, nw); | |
638 | head = nw; | |
639 | w = strtok(NULL, " \t"); | |
640 | } | |
641 | free(l); | |
642 | } | |
643 | ||
4e8d9f0a N |
644 | for (super_cnt = 0; superlist[super_cnt]; super_cnt++) |
645 | ; | |
503975b9 | 646 | seen = xcalloc(super_cnt, 1); |
4d0b563b | 647 | |
4e8d9f0a N |
648 | for (w = dl_next(line); w != line ; w = dl_next(w)) { |
649 | char *val; | |
650 | ||
651 | if (strcasecmp(w, "yes") == 0) { | |
652 | dflt = auto_yes; | |
653 | break; | |
654 | } | |
655 | if (strcasecmp(w, "no") == 0) { | |
656 | if (homehost) | |
657 | dflt = auto_homehost; | |
658 | else | |
659 | dflt = auto_no; | |
660 | break; | |
661 | } | |
662 | if (strcasecmp(w, "homehost") == 0) { | |
663 | homehost = 1; | |
664 | continue; | |
665 | } | |
666 | if (w[0] == '+') | |
667 | val = auto_yes; | |
668 | else if (w[0] == '-') { | |
669 | if (homehost) | |
670 | val = auto_homehost; | |
671 | else | |
672 | val = auto_no; | |
673 | } else | |
674 | continue; | |
675 | ||
676 | if (strcasecmp(w+1, "all") == 0) { | |
677 | dflt = val; | |
678 | break; | |
679 | } | |
680 | for (i = 0; superlist[i]; i++) { | |
681 | const char *version = superlist[i]->name; | |
682 | if (strcasecmp(w+1, version) == 0) | |
683 | break; | |
684 | /* 1 matches 1.x, 0 matches 0.90 */ | |
685 | if (version[1] == '.' && | |
686 | strlen(w+1) == 1 && | |
687 | w[1] == version[0]) | |
688 | break; | |
689 | /* 1.anything matches 1.x */ | |
690 | if (strcmp(version, "1.x") == 0 && | |
691 | strncmp(w+1, "1.", 2) == 0) | |
692 | break; | |
693 | } | |
694 | if (superlist[i] == NULL) | |
695 | /* ignore this word */ | |
696 | continue; | |
697 | if (seen[i]) | |
698 | /* already know about this metadata */ | |
699 | continue; | |
700 | policy_add(rule_policy, pol_auto, val, pol_metadata, superlist[i]->name, NULL); | |
701 | seen[i] = 1; | |
4d0b563b | 702 | } |
4e8d9f0a N |
703 | for (i = 0; i < super_cnt; i++) |
704 | if (!seen[i]) | |
705 | policy_add(rule_policy, pol_auto, dflt, pol_metadata, superlist[i]->name, NULL); | |
42de2ac2 TJ |
706 | |
707 | free(seen); | |
31015d57 | 708 | } |
e0d19036 | 709 | |
82b27616 NB |
710 | int loaded = 0; |
711 | ||
8aec876d NB |
712 | static char *conffile = NULL; |
713 | void set_conffile(char *file) | |
714 | { | |
715 | conffile = file; | |
716 | } | |
717 | ||
15af9692 | 718 | void conf_file(FILE *f) |
82b27616 | 719 | { |
52826846 | 720 | char *line; |
52826846 NB |
721 | while ((line=conf_line(f))) { |
722 | switch(match_keyword(line)) { | |
8fe9db0f | 723 | case Devices: |
52826846 NB |
724 | devline(line); |
725 | break; | |
8fe9db0f | 726 | case Array: |
52826846 NB |
727 | arrayline(line); |
728 | break; | |
8fe9db0f | 729 | case Mailaddr: |
e0d19036 NB |
730 | mailline(line); |
731 | break; | |
8fe9db0f | 732 | case Mailfrom: |
4948b8f7 NB |
733 | mailfromline(line); |
734 | break; | |
8fe9db0f NB |
735 | case Program: |
736 | programline(line); | |
737 | break; | |
738 | case CreateDev: | |
5bbb4842 NB |
739 | createline(line); |
740 | break; | |
997aed5d NB |
741 | case Homehost: |
742 | homehostline(line); | |
743 | break; | |
7716570e GJ |
744 | case HomeCluster: |
745 | homeclusterline(line); | |
746 | break; | |
31015d57 N |
747 | case AutoMode: |
748 | autoline(line); | |
749 | break; | |
5527fc74 N |
750 | case Policy: |
751 | policyline(line, rule_policy); | |
752 | break; | |
753 | case PartPolicy: | |
754 | policyline(line, rule_part); | |
755 | break; | |
52826846 | 756 | default: |
e7b84f9d | 757 | pr_err("Unknown keyword %s\n", line); |
52826846 NB |
758 | } |
759 | free_line(line); | |
82b27616 | 760 | } |
15af9692 N |
761 | } |
762 | ||
343b7e75 N |
763 | struct fname { |
764 | struct fname *next; | |
765 | char name[]; | |
766 | }; | |
767 | ||
768 | void conf_file_or_dir(FILE *f) | |
769 | { | |
770 | struct stat st; | |
771 | DIR *dir; | |
772 | struct dirent *dp; | |
773 | struct fname *list = NULL; | |
774 | ||
775 | fstat(fileno(f), &st); | |
776 | if (S_ISREG(st.st_mode)) | |
777 | conf_file(f); | |
778 | else if (!S_ISDIR(st.st_mode)) | |
779 | return; | |
780 | #if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L | |
781 | dir = fdopendir(fileno(f)); | |
782 | if (!dir) | |
783 | return; | |
784 | while ((dp = readdir(dir)) != NULL) { | |
785 | int l; | |
786 | struct fname *fn, **p; | |
787 | if (dp->d_ino == 0) | |
788 | continue; | |
789 | if (dp->d_name[0] == '.') | |
790 | continue; | |
791 | l = strlen(dp->d_name); | |
792 | if (l < 6 || strcmp(dp->d_name+l-5, ".conf") != 0) | |
793 | continue; | |
794 | fn = xmalloc(sizeof(*fn)+l+1); | |
795 | strcpy(fn->name, dp->d_name); | |
796 | for (p = &list; | |
797 | *p && strcmp((*p)->name, fn->name) < 0; | |
798 | p = & (*p)->next) | |
799 | ; | |
800 | fn->next = *p; | |
801 | *p = fn; | |
802 | } | |
803 | while (list) { | |
804 | int fd; | |
805 | FILE *f2; | |
806 | struct fname *fn = list; | |
807 | list = list->next; | |
808 | fd = openat(fileno(f), fn->name, O_RDONLY); | |
809 | free(fn); | |
810 | if (fd < 0) | |
811 | continue; | |
812 | f2 = fdopen(fd, "r"); | |
813 | if (!f2) { | |
814 | close(fd); | |
815 | continue; | |
816 | } | |
817 | conf_file(f2); | |
818 | fclose(f2); | |
819 | } | |
820 | closedir(dir); | |
821 | #endif | |
822 | } | |
823 | ||
15af9692 N |
824 | void load_conffile(void) |
825 | { | |
826 | FILE *f; | |
9dc70cbc | 827 | char *confdir = NULL; |
2dfb675b | 828 | char *head; |
15af9692 | 829 | |
824e5727 N |
830 | if (loaded) |
831 | return; | |
9dc70cbc | 832 | if (conffile == NULL) { |
15af9692 | 833 | conffile = DefaultConfFile; |
9dc70cbc N |
834 | confdir = DefaultConfDir; |
835 | } | |
15af9692 | 836 | |
15af9692 N |
837 | if (strcmp(conffile, "partitions")==0) { |
838 | char *list = dl_strdup("DEV"); | |
839 | dl_init(list); | |
840 | dl_add(list, dl_strdup("partitions")); | |
841 | devline(list); | |
842 | free_line(list); | |
824e5727 N |
843 | } else if (strcmp(conffile, "none") != 0) { |
844 | f = fopen(conffile, "r"); | |
845 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. | |
846 | * To allow Debian users to compile from clean source and still | |
847 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
848 | * if /etc/mdadm.conf doesn't exist | |
849 | */ | |
850 | if (f == NULL && | |
851 | conffile == DefaultConfFile) { | |
852 | f = fopen(DefaultAltConfFile, "r"); | |
853 | if (f) { | |
854 | conffile = DefaultAltConfFile; | |
855 | confdir = DefaultAltConfDir; | |
856 | } | |
9dc70cbc | 857 | } |
9dc70cbc | 858 | if (f) { |
9dc70cbc N |
859 | conf_file_or_dir(f); |
860 | fclose(f); | |
861 | } | |
824e5727 N |
862 | if (confdir) { |
863 | f = fopen(confdir, "r"); | |
864 | if (f) { | |
865 | conf_file_or_dir(f); | |
866 | fclose(f); | |
867 | } | |
868 | } | |
15af9692 | 869 | } |
2dfb675b N |
870 | /* If there was no AUTO line, process an empty line |
871 | * now so that the MDADM_CONF_AUTO env var gets processed. | |
872 | */ | |
873 | head = dl_strdup("AUTO"); | |
874 | dl_init(head); | |
875 | autoline(head); | |
876 | free_line(head); | |
877 | ||
824e5727 | 878 | loaded = 1; |
82b27616 NB |
879 | } |
880 | ||
8aec876d | 881 | char *conf_get_mailaddr(void) |
e0d19036 | 882 | { |
8aec876d | 883 | load_conffile(); |
e0d19036 NB |
884 | return alert_email; |
885 | } | |
886 | ||
8aec876d | 887 | char *conf_get_mailfrom(void) |
4948b8f7 | 888 | { |
8aec876d | 889 | load_conffile(); |
4948b8f7 NB |
890 | return alert_mail_from; |
891 | } | |
892 | ||
8aec876d | 893 | char *conf_get_program(void) |
e0d19036 | 894 | { |
8aec876d | 895 | load_conffile(); |
e0d19036 NB |
896 | return alert_program; |
897 | } | |
898 | ||
0ac91628 | 899 | char *conf_get_homehost(int *require_homehostp) |
997aed5d | 900 | { |
8aec876d | 901 | load_conffile(); |
0ac91628 N |
902 | if (require_homehostp) |
903 | *require_homehostp = require_homehost; | |
997aed5d NB |
904 | return home_host; |
905 | } | |
906 | ||
7716570e GJ |
907 | char *conf_get_homecluster(void) |
908 | { | |
909 | load_conffile(); | |
910 | return home_cluster; | |
911 | } | |
912 | ||
8aec876d | 913 | struct createinfo *conf_get_create_info(void) |
5bbb4842 | 914 | { |
8aec876d | 915 | load_conffile(); |
5bbb4842 NB |
916 | return &createinfo; |
917 | } | |
82b27616 | 918 | |
fa56eddb | 919 | struct mddev_ident *conf_get_ident(char *dev) |
64c4757e | 920 | { |
fa56eddb | 921 | struct mddev_ident *rv; |
8aec876d | 922 | load_conffile(); |
52826846 | 923 | rv = mddevlist; |
fe056d1f | 924 | while (dev && rv && (rv->devname == NULL |
5c4c9ab1 | 925 | || !devname_matches(dev, rv->devname))) |
52826846 NB |
926 | rv = rv->next; |
927 | return rv; | |
64c4757e NB |
928 | } |
929 | ||
a655e550 | 930 | static void append_dlist(struct mddev_dev **dlp, struct mddev_dev *list) |
f64165f7 DW |
931 | { |
932 | while (*dlp) | |
933 | dlp = &(*dlp)->next; | |
934 | *dlp = list; | |
935 | } | |
936 | ||
a655e550 | 937 | struct mddev_dev *conf_get_devs() |
64c4757e | 938 | { |
52826846 NB |
939 | glob_t globbuf; |
940 | struct conf_dev *cd; | |
941 | int flags = 0; | |
a655e550 | 942 | static struct mddev_dev *dlist = NULL; |
98c6faba | 943 | unsigned int i; |
52826846 NB |
944 | |
945 | while (dlist) { | |
a655e550 | 946 | struct mddev_dev *t = dlist; |
52826846 NB |
947 | dlist = dlist->next; |
948 | free(t->devname); | |
949 | free(t); | |
950 | } | |
aba69144 | 951 | |
8aec876d | 952 | load_conffile(); |
a99d6b66 | 953 | |
f8f84cd5 DW |
954 | if (cdevlist == NULL) { |
955 | /* default to 'partitions' and 'containers' */ | |
a99d6b66 | 956 | dlist = load_partitions(); |
f8f84cd5 DW |
957 | append_dlist(&dlist, load_containers()); |
958 | } | |
a99d6b66 | 959 | |
52826846 | 960 | for (cd=cdevlist; cd; cd=cd->next) { |
f64165f7 DW |
961 | if (strcasecmp(cd->name, "partitions")==0) |
962 | append_dlist(&dlist, load_partitions()); | |
963 | else if (strcasecmp(cd->name, "containers")==0) | |
964 | append_dlist(&dlist, load_containers()); | |
057bd352 NB |
965 | else { |
966 | glob(cd->name, flags, NULL, &globbuf); | |
967 | flags |= GLOB_APPEND; | |
968 | } | |
52826846 | 969 | } |
e0d19036 NB |
970 | if (flags & GLOB_APPEND) { |
971 | for (i=0; i<globbuf.gl_pathc; i++) { | |
6a674388 JS |
972 | struct mddev_dev *t; |
973 | t = xcalloc(1, sizeof(*t)); | |
503975b9 | 974 | t->devname = xstrdup(globbuf.gl_pathv[i]); |
e0d19036 NB |
975 | t->next = dlist; |
976 | dlist = t; | |
82b27616 | 977 | /* printf("one dev is %s\n", t->devname);*/ |
e0d19036 NB |
978 | } |
979 | globfree(&globbuf); | |
52826846 | 980 | } |
82b27616 | 981 | |
52826846 | 982 | return dlist; |
64c4757e NB |
983 | } |
984 | ||
8382f19b NB |
985 | int conf_test_dev(char *devname) |
986 | { | |
987 | struct conf_dev *cd; | |
988 | if (cdevlist == NULL) | |
989 | /* allow anything by default */ | |
990 | return 1; | |
991 | for (cd = cdevlist ; cd ; cd = cd->next) { | |
992 | if (strcasecmp(cd->name, "partitions") == 0) | |
993 | return 1; | |
994 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
995 | return 1; | |
996 | } | |
997 | return 0; | |
998 | } | |
999 | ||
4e8d9f0a | 1000 | int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost) |
31015d57 | 1001 | { |
4e8d9f0a N |
1002 | /* If anyone said 'yes', that sticks. |
1003 | * else if homehost applies, use that | |
1004 | * else if there is a 'no', say 'no'. | |
1005 | * else 'yes'. | |
31015d57 | 1006 | */ |
4e8d9f0a | 1007 | struct dev_policy *p; |
b10c663e | 1008 | int no=0, found_homehost=0; |
31015d57 | 1009 | load_conffile(); |
4e8d9f0a N |
1010 | |
1011 | pol = pol_find(pol, pol_auto); | |
1012 | pol_for_each(p, pol, version) { | |
1013 | if (strcmp(p->value, "yes") == 0) | |
31015d57 | 1014 | return 1; |
b10c663e N |
1015 | if (strcmp(p->value, "homehost") == 0) |
1016 | found_homehost = 1; | |
4e8d9f0a N |
1017 | if (strcmp(p->value, "no") == 0) |
1018 | no = 1; | |
31015d57 | 1019 | } |
b10c663e | 1020 | if (is_homehost && found_homehost) |
4e8d9f0a N |
1021 | return 1; |
1022 | if (no) | |
1023 | return 0; | |
31015d57 N |
1024 | return 1; |
1025 | } | |
8382f19b | 1026 | |
52826846 NB |
1027 | int match_oneof(char *devices, char *devname) |
1028 | { | |
5d500228 N |
1029 | /* check if one of the comma separated patterns in devices |
1030 | * matches devname | |
1031 | */ | |
1032 | ||
1033 | while (devices && *devices) { | |
1034 | char patn[1024]; | |
1035 | char *p = devices; | |
1036 | devices = strchr(devices, ','); | |
1037 | if (!devices) | |
1038 | devices = p + strlen(p); | |
1039 | if (devices-p < 1024) { | |
1040 | strncpy(patn, p, devices-p); | |
1041 | patn[devices-p] = 0; | |
1042 | if (fnmatch(patn, devname, FNM_PATHNAME)==0) | |
1043 | return 1; | |
1044 | } | |
1045 | if (*devices == ',') | |
1046 | devices++; | |
52826846 | 1047 | } |
5d500228 | 1048 | return 0; |
52826846 | 1049 | } |
0ac91628 N |
1050 | |
1051 | int devname_matches(char *name, char *match) | |
1052 | { | |
1053 | /* See if the given array name matches the | |
1054 | * given match from config file. | |
1055 | * | |
1056 | * First strip and /dev/md/ or /dev/, then | |
1057 | * see if there might be a numeric match of | |
1058 | * mdNN with NN | |
1059 | * then just strcmp | |
1060 | */ | |
1061 | if (strncmp(name, "/dev/md/", 8) == 0) | |
1062 | name += 8; | |
1063 | else if (strncmp(name, "/dev/", 5) == 0) | |
1064 | name += 5; | |
1065 | ||
1066 | if (strncmp(match, "/dev/md/", 8) == 0) | |
1067 | match += 8; | |
1068 | else if (strncmp(match, "/dev/", 5) == 0) | |
1069 | match += 5; | |
1070 | ||
0ac91628 N |
1071 | if (strncmp(name, "md", 2) == 0 && |
1072 | isdigit(name[2])) | |
1073 | name += 2; | |
1074 | if (strncmp(match, "md", 2) == 0 && | |
1075 | isdigit(match[2])) | |
1076 | match += 2; | |
1077 | ||
1078 | return (strcmp(name, match) == 0); | |
1079 | } | |
1080 | ||
1081 | int conf_name_is_free(char *name) | |
1082 | { | |
4dd2df09 | 1083 | /* Check if this name is already taken by an ARRAY entry in |
0ac91628 N |
1084 | * the config file. |
1085 | * It can be taken either by a match on devname, name, or | |
1086 | * even super-minor. | |
1087 | */ | |
fa56eddb | 1088 | struct mddev_ident *dev; |
0ac91628 N |
1089 | |
1090 | load_conffile(); | |
1091 | for (dev = mddevlist; dev; dev = dev->next) { | |
1092 | char nbuf[100]; | |
1093 | if (dev->devname && devname_matches(name, dev->devname)) | |
1094 | return 0; | |
1095 | if (dev->name[0] && devname_matches(name, dev->name)) | |
1096 | return 0; | |
1097 | sprintf(nbuf, "%d", dev->super_minor); | |
1098 | if (dev->super_minor != UnSet && | |
1099 | devname_matches(name, nbuf)) | |
1100 | return 0; | |
1101 | } | |
1102 | return 1; | |
1103 | } | |
360b4636 | 1104 | |
2244d1a9 N |
1105 | struct mddev_ident *conf_match(struct supertype *st, |
1106 | struct mdinfo *info, | |
1107 | char *devname, | |
1108 | int verbose, int *rvp) | |
360b4636 | 1109 | { |
fa56eddb | 1110 | struct mddev_ident *array_list, *match; |
360b4636 N |
1111 | array_list = conf_get_ident(NULL); |
1112 | match = NULL; | |
1113 | for (; array_list; array_list = array_list->next) { | |
1114 | if (array_list->uuid_set && | |
1115 | same_uuid(array_list->uuid, info->uuid, st->ss->swapuuid) | |
1116 | == 0) { | |
1117 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1118 | pr_err("UUID differs from %s.\n", |
1119 | array_list->devname); | |
360b4636 N |
1120 | continue; |
1121 | } | |
1122 | if (array_list->name[0] && | |
1123 | strcasecmp(array_list->name, info->name) != 0) { | |
1124 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1125 | pr_err("Name differs from %s.\n", |
1126 | array_list->devname); | |
360b4636 N |
1127 | continue; |
1128 | } | |
9f1b0f0f | 1129 | if (array_list->devices && devname && |
360b4636 N |
1130 | !match_oneof(array_list->devices, devname)) { |
1131 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1132 | pr_err("Not a listed device for %s.\n", |
1133 | array_list->devname); | |
360b4636 N |
1134 | continue; |
1135 | } | |
1136 | if (array_list->super_minor != UnSet && | |
1137 | array_list->super_minor != info->array.md_minor) { | |
1138 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1139 | pr_err("Different super-minor to %s.\n", |
1140 | array_list->devname); | |
360b4636 N |
1141 | continue; |
1142 | } | |
1143 | if (!array_list->uuid_set && | |
1144 | !array_list->name[0] && | |
1145 | !array_list->devices && | |
1146 | array_list->super_minor == UnSet) { | |
1147 | if (verbose >= 2 && array_list->devname) | |
7a862a02 | 1148 | pr_err("%s doesn't have any identifying information.\n", |
e7b84f9d | 1149 | array_list->devname); |
360b4636 N |
1150 | continue; |
1151 | } | |
1152 | /* FIXME, should I check raid_disks and level too?? */ | |
1153 | ||
1154 | if (match) { | |
1155 | if (verbose >= 0) { | |
1156 | if (match->devname && array_list->devname) | |
7a862a02 | 1157 | pr_err("we match both %s and %s - cannot decide which to use.\n", |
e7b84f9d N |
1158 | match->devname, |
1159 | array_list->devname); | |
360b4636 | 1160 | else |
7a862a02 | 1161 | pr_err("multiple lines in mdadm.conf match\n"); |
360b4636 | 1162 | } |
2244d1a9 N |
1163 | if (rvp) |
1164 | *rvp = 2; | |
1165 | match = NULL; | |
1166 | break; | |
360b4636 N |
1167 | } |
1168 | match = array_list; | |
1169 | } | |
1170 | return match; | |
1171 | } | |
7c336758 LO |
1172 | |
1173 | int conf_verify_devnames(struct mddev_ident *array_list) | |
1174 | { | |
1175 | struct mddev_ident *a1, *a2; | |
1176 | ||
1177 | for (a1 = array_list; a1; a1 = a1->next) { | |
1178 | if (!a1->devname) | |
1179 | continue; | |
13f2dd6b N |
1180 | if (strcmp(a1->devname, "<ignore>") == 0) |
1181 | continue; | |
7c336758 LO |
1182 | for (a2 = a1->next; a2; a2 = a2->next) { |
1183 | if (!a2->devname) | |
1184 | continue; | |
1185 | if (strcmp(a1->devname, a2->devname) != 0) | |
1186 | continue; | |
1187 | ||
1188 | if (a1->uuid_set && a2->uuid_set) { | |
1189 | char nbuf[64]; | |
1190 | __fname_from_uuid(a1->uuid, 0, nbuf, ':'); | |
e7b84f9d N |
1191 | pr_err("Devices %s and ", |
1192 | nbuf); | |
7c336758 LO |
1193 | __fname_from_uuid(a2->uuid, 0, nbuf, ':'); |
1194 | fprintf(stderr, | |
1195 | "%s have the same name: %s\n", | |
1196 | nbuf, a1->devname); | |
1197 | } else | |
7a862a02 | 1198 | pr_err("Device %s given twice in config file\n", a1->devname); |
7c336758 LO |
1199 | return 1; |
1200 | } | |
1201 | } | |
1202 | ||
1203 | return 0; | |
1204 | } |