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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 | |
421c6c04 JS |
109 | if (len < 3) |
110 | return -1; | |
111 | for (n = 0; keywords[n]; n++) { | |
112 | if (strncasecmp(word, keywords[n], len) == 0) | |
52826846 NB |
113 | return n; |
114 | } | |
421c6c04 | 115 | |
52826846 | 116 | return -1; |
82b27616 NB |
117 | } |
118 | ||
82b27616 | 119 | struct conf_dev { |
5d500228 N |
120 | struct conf_dev *next; |
121 | char *name; | |
82b27616 NB |
122 | } *cdevlist = NULL; |
123 | ||
a655e550 | 124 | struct mddev_dev *load_partitions(void) |
5787fa49 NB |
125 | { |
126 | FILE *f = fopen("/proc/partitions", "r"); | |
127 | char buf[1024]; | |
a655e550 | 128 | struct mddev_dev *rv = NULL; |
421c6c04 | 129 | |
5787fa49 | 130 | if (f == NULL) { |
e7b84f9d | 131 | pr_err("cannot open /proc/partitions\n"); |
057bd352 | 132 | return NULL; |
5787fa49 NB |
133 | } |
134 | while (fgets(buf, 1024, f)) { | |
135 | int major, minor; | |
98c6faba | 136 | char *name, *mp; |
a655e550 | 137 | struct mddev_dev *d; |
8b0dabea | 138 | |
5787fa49 NB |
139 | buf[1023] = '\0'; |
140 | if (buf[0] != ' ') | |
141 | continue; | |
98c6faba | 142 | major = strtoul(buf, &mp, 10); |
aba69144 | 143 | if (mp == buf || *mp != ' ') |
5787fa49 | 144 | continue; |
98c6faba NB |
145 | minor = strtoul(mp, NULL, 10); |
146 | ||
16c6fa80 | 147 | name = map_dev(major, minor, 1); |
e81cdd9f NB |
148 | if (!name) |
149 | continue; | |
6a674388 | 150 | d = xcalloc(1, sizeof(*d)); |
503975b9 | 151 | d->devname = xstrdup(name); |
8b0dabea NB |
152 | d->next = rv; |
153 | rv = d; | |
5787fa49 | 154 | } |
dd0781e5 | 155 | fclose(f); |
057bd352 | 156 | return rv; |
5787fa49 | 157 | } |
82b27616 | 158 | |
a655e550 | 159 | struct mddev_dev *load_containers(void) |
f64165f7 | 160 | { |
b4924f46 | 161 | struct mdstat_ent *mdstat = mdstat_read(0, 0); |
f64165f7 | 162 | struct mdstat_ent *ent; |
a655e550 N |
163 | struct mddev_dev *d; |
164 | struct mddev_dev *rv = NULL; | |
eb2306f8 | 165 | struct map_ent *map = NULL, *me; |
f64165f7 DW |
166 | |
167 | if (!mdstat) | |
168 | return NULL; | |
169 | ||
170 | for (ent = mdstat; ent; ent = ent->next) | |
171 | if (ent->metadata_version && | |
172 | strncmp(ent->metadata_version, "external:", 9) == 0 && | |
173 | !is_subarray(&ent->metadata_version[9])) { | |
6a674388 | 174 | d = xcalloc(1, sizeof(*d)); |
9581efb1 | 175 | me = map_by_devnm(&map, ent->devnm); |
eb2306f8 N |
176 | if (me) |
177 | d->devname = xstrdup(me->path); | |
9581efb1 | 178 | else if (asprintf(&d->devname, "/dev/%s", ent->devnm) < 0) { |
f64165f7 DW |
179 | free(d); |
180 | continue; | |
181 | } | |
182 | d->next = rv; | |
f64165f7 | 183 | rv = d; |
898bd1ec GJ |
184 | map_free(map); |
185 | map = NULL; | |
f64165f7 DW |
186 | } |
187 | free_mdstat(mdstat); | |
188 | ||
189 | return rv; | |
190 | } | |
191 | ||
5bbb4842 | 192 | struct createinfo createinfo = { |
75723446 | 193 | .autof = 2, /* by default, create devices with standard names */ |
38098016 | 194 | .symlinks = 1, |
eca944fa | 195 | .names = 0, /* By default, stick with numbered md devices. */ |
e2efe9e7 | 196 | .bblist = 1, /* Use a bad block list by default */ |
5bbb4842 NB |
197 | #ifdef DEBIAN |
198 | .gid = 6, /* disk */ | |
199 | .mode = 0660, | |
200 | #else | |
201 | .mode = 0600, | |
202 | #endif | |
203 | }; | |
204 | ||
f1ae21c4 | 205 | int parse_auto(char *str, char *msg, int config) |
5bbb4842 NB |
206 | { |
207 | int autof; | |
208 | if (str == NULL || *str == 0) | |
f1ae21c4 | 209 | autof = 2; |
421c6c04 | 210 | else if (strcasecmp(str, "no") == 0) |
f1ae21c4 | 211 | autof = 1; |
421c6c04 | 212 | else if (strcasecmp(str, "yes") == 0) |
f1ae21c4 | 213 | autof = 2; |
421c6c04 JS |
214 | else if (strcasecmp(str, "md") == 0) |
215 | autof = config ? 5:3; | |
5bbb4842 NB |
216 | else { |
217 | /* There might be digits, and maybe a hypen, at the end */ | |
218 | char *e = str + strlen(str); | |
219 | int num = 4; | |
220 | int len; | |
221 | while (e > str && isdigit(e[-1])) | |
222 | e--; | |
223 | if (*e) { | |
224 | num = atoi(e); | |
421c6c04 JS |
225 | if (num <= 0) |
226 | num = 1; | |
5bbb4842 NB |
227 | } |
228 | if (e > str && e[-1] == '-') | |
229 | e--; | |
230 | len = e - str; | |
421c6c04 | 231 | if ((len == 2 && strncasecmp(str, "md", 2) == 0)) { |
f1ae21c4 | 232 | autof = config ? 5 : 3; |
421c6c04 | 233 | } else if ((len == 3 && strncasecmp(str, "yes", 3) == 0)) { |
6ba83b5f | 234 | autof = 2; |
421c6c04 | 235 | } else if ((len == 3 && strncasecmp(str, "mdp", 3) == 0)) { |
f1ae21c4 | 236 | autof = config ? 6 : 4; |
421c6c04 JS |
237 | } else if ((len == 1 && strncasecmp(str, "p", 1) == 0) || |
238 | (len >= 4 && strncasecmp(str, "part", 4) == 0)) { | |
f1ae21c4 NB |
239 | autof = 6; |
240 | } else { | |
e7b84f9d | 241 | pr_err("%s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" |
5bbb4842 NB |
242 | " optionally followed by a number.\n", |
243 | msg, str); | |
244 | exit(2); | |
245 | } | |
f1ae21c4 | 246 | autof |= num << 3; |
5bbb4842 NB |
247 | } |
248 | return autof; | |
249 | } | |
f1ae21c4 | 250 | |
5bbb4842 NB |
251 | static void createline(char *line) |
252 | { | |
253 | char *w; | |
254 | char *ep; | |
255 | ||
421c6c04 | 256 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
5bbb4842 | 257 | if (strncasecmp(w, "auto=", 5) == 0) |
421c6c04 | 258 | createinfo.autof = parse_auto(w + 5, "auto=", 1); |
5bbb4842 NB |
259 | else if (strncasecmp(w, "owner=", 6) == 0) { |
260 | if (w[6] == 0) { | |
e7b84f9d | 261 | pr_err("missing owner name\n"); |
5bbb4842 NB |
262 | continue; |
263 | } | |
421c6c04 | 264 | createinfo.uid = strtoul(w + 6, &ep, 10); |
5bbb4842 | 265 | if (*ep != 0) { |
5bbb4842 NB |
266 | struct passwd *pw; |
267 | /* must be a name */ | |
421c6c04 | 268 | pw = getpwnam(w + 6); |
5bbb4842 NB |
269 | if (pw) |
270 | createinfo.uid = pw->pw_uid; | |
271 | else | |
421c6c04 JS |
272 | pr_err("CREATE user %s not found\n", |
273 | w + 6); | |
5bbb4842 NB |
274 | } |
275 | } else if (strncasecmp(w, "group=", 6) == 0) { | |
276 | if (w[6] == 0) { | |
e7b84f9d | 277 | pr_err("missing group name\n"); |
5bbb4842 NB |
278 | continue; |
279 | } | |
421c6c04 | 280 | createinfo.gid = strtoul(w + 6, &ep, 10); |
5bbb4842 | 281 | if (*ep != 0) { |
5bbb4842 NB |
282 | struct group *gr; |
283 | /* must be a name */ | |
421c6c04 | 284 | gr = getgrnam(w + 6); |
5bbb4842 NB |
285 | if (gr) |
286 | createinfo.gid = gr->gr_gid; | |
287 | else | |
421c6c04 JS |
288 | pr_err("CREATE group %s not found\n", |
289 | w + 6); | |
5bbb4842 NB |
290 | } |
291 | } else if (strncasecmp(w, "mode=", 5) == 0) { | |
292 | if (w[5] == 0) { | |
e7b84f9d | 293 | pr_err("missing CREATE mode\n"); |
5bbb4842 NB |
294 | continue; |
295 | } | |
421c6c04 | 296 | createinfo.mode = strtoul(w + 5, &ep, 8); |
5bbb4842 NB |
297 | if (*ep != 0) { |
298 | createinfo.mode = 0600; | |
e7b84f9d | 299 | pr_err("unrecognised CREATE mode %s\n", |
421c6c04 | 300 | w + 5); |
5bbb4842 | 301 | } |
058574b1 NB |
302 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
303 | /* style of metadata to use by default */ | |
304 | int i; | |
421c6c04 JS |
305 | for (i = 0; superlist[i] && !createinfo.supertype; i++) |
306 | createinfo.supertype = superlist[i]->match_metadata_desc(w + 9); | |
058574b1 | 307 | if (!createinfo.supertype) |
e7b84f9d | 308 | pr_err("metadata format %s unknown, ignoring\n", |
058574b1 | 309 | w+9); |
38098016 NB |
310 | } else if (strncasecmp(w, "symlinks=yes", 12) == 0) |
311 | createinfo.symlinks = 1; | |
312 | else if (strncasecmp(w, "symlinks=no", 11) == 0) | |
313 | createinfo.symlinks = 0; | |
eca944fa N |
314 | else if (strncasecmp(w, "names=yes", 12) == 0) |
315 | createinfo.names = 1; | |
316 | else if (strncasecmp(w, "names=no", 11) == 0) | |
317 | createinfo.names = 0; | |
e2efe9e7 N |
318 | else if (strncasecmp(w, "bbl=no", 11) == 0) |
319 | createinfo.bblist = 0; | |
320 | else if (strncasecmp(w, "bbl=yes", 11) == 0) | |
321 | createinfo.bblist = 1; | |
38098016 | 322 | else { |
e7b84f9d | 323 | pr_err("unrecognised word on CREATE line: %s\n", |
5bbb4842 NB |
324 | w); |
325 | } | |
326 | } | |
327 | } | |
82b27616 | 328 | |
aba69144 | 329 | void devline(char *line) |
82b27616 | 330 | { |
52826846 NB |
331 | char *w; |
332 | struct conf_dev *cd; | |
333 | ||
421c6c04 | 334 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
f64165f7 DW |
335 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0 || |
336 | strcasecmp(w, "containers") == 0) { | |
503975b9 N |
337 | cd = xmalloc(sizeof(*cd)); |
338 | cd->name = xstrdup(w); | |
52826846 NB |
339 | cd->next = cdevlist; |
340 | cdevlist = cd; | |
341 | } else { | |
421c6c04 | 342 | pr_err("unreconised word on DEVICE line: %s\n", w); |
52826846 | 343 | } |
82b27616 | 344 | } |
82b27616 NB |
345 | } |
346 | ||
fa56eddb N |
347 | struct mddev_ident *mddevlist = NULL; |
348 | struct mddev_ident **mddevlp = &mddevlist; | |
82b27616 | 349 | |
db2d001c N |
350 | static int is_number(char *w) |
351 | { | |
352 | /* check if there are 1 or more digits and nothing else */ | |
353 | int digits = 0; | |
354 | while (*w && isdigit(*w)) { | |
355 | digits++; | |
356 | w++; | |
357 | } | |
358 | return (digits && ! *w); | |
359 | } | |
360 | ||
82b27616 NB |
361 | void arrayline(char *line) |
362 | { | |
52826846 NB |
363 | char *w; |
364 | ||
fa56eddb N |
365 | struct mddev_ident mis; |
366 | struct mddev_ident *mi; | |
52826846 NB |
367 | |
368 | mis.uuid_set = 0; | |
98c6faba NB |
369 | mis.super_minor = UnSet; |
370 | mis.level = UnSet; | |
371 | mis.raid_disks = UnSet; | |
4ccdb956 | 372 | mis.spare_disks = 0; |
52826846 NB |
373 | mis.devices = NULL; |
374 | mis.devname = NULL; | |
e0d19036 | 375 | mis.spare_group = NULL; |
dd0781e5 | 376 | mis.autof = 0; |
92919398 | 377 | mis.next = NULL; |
f277ce36 NB |
378 | mis.st = NULL; |
379 | mis.bitmap_fd = -1; | |
7ef02d01 | 380 | mis.bitmap_file = NULL; |
947fd4dd | 381 | mis.name[0] = 0; |
71d60c48 DW |
382 | mis.container = NULL; |
383 | mis.member = NULL; | |
52826846 | 384 | |
421c6c04 | 385 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
db2d001c N |
386 | if (w[0] == '/' || strchr(w, '=') == NULL) { |
387 | /* This names the device, or is '<ignore>'. | |
388 | * The rules match those in create_mddev. | |
389 | * 'w' must be: | |
390 | * /dev/md/{anything} | |
391 | * /dev/mdNN | |
392 | * /dev/md_dNN | |
393 | * <ignore> | |
394 | * or anything that doesn't start '/' or '<' | |
395 | */ | |
396 | if (strcasecmp(w, "<ignore>") == 0 || | |
397 | strncmp(w, "/dev/md/", 8) == 0 || | |
398 | (w[0] != '/' && w[0] != '<') || | |
1011e834 | 399 | (strncmp(w, "/dev/md", 7) == 0 && |
421c6c04 | 400 | is_number(w + 7)) || |
db2d001c | 401 | (strncmp(w, "/dev/md_d", 9) == 0 && |
421c6c04 | 402 | is_number(w + 9))) { |
db2d001c N |
403 | /* This is acceptable */; |
404 | if (mis.devname) | |
7a862a02 | 405 | pr_err("only give one device per ARRAY line: %s and %s\n", |
db2d001c N |
406 | mis.devname, w); |
407 | else | |
408 | mis.devname = w; | |
409 | }else { | |
7a862a02 | 410 | pr_err("%s is an invalid name for an md device - ignored.\n", w); |
db2d001c | 411 | } |
421c6c04 | 412 | } else if (strncasecmp(w, "uuid=", 5) == 0) { |
52826846 | 413 | if (mis.uuid_set) |
e7b84f9d | 414 | pr_err("only specify uuid once, %s ignored.\n", |
421c6c04 | 415 | w); |
52826846 | 416 | else { |
421c6c04 | 417 | if (parse_uuid(w + 5, mis.uuid)) |
52826846 NB |
418 | mis.uuid_set = 1; |
419 | else | |
e7b84f9d | 420 | pr_err("bad uuid: %s\n", w); |
52826846 | 421 | } |
421c6c04 | 422 | } else if (strncasecmp(w, "super-minor=", 12) == 0) { |
f277ce36 | 423 | if (mis.super_minor != UnSet) |
e7b84f9d | 424 | pr_err("only specify super-minor once, %s ignored.\n", |
52826846 NB |
425 | w); |
426 | else { | |
427 | char *endptr; | |
421c6c04 | 428 | int minor = strtol(w + 12, &endptr, 10); |
f21e18ca | 429 | |
421c6c04 | 430 | if (w[12] == 0 || endptr[0] != 0 || minor < 0) |
e7b84f9d | 431 | pr_err("invalid super-minor number: %s\n", |
421c6c04 | 432 | w); |
f21e18ca N |
433 | else |
434 | mis.super_minor = minor; | |
52826846 | 435 | } |
421c6c04 | 436 | } else if (strncasecmp(w, "name=", 5) == 0) { |
947fd4dd | 437 | if (mis.name[0]) |
e7b84f9d | 438 | pr_err("only specify name once, %s ignored.\n", |
947fd4dd | 439 | w); |
421c6c04 | 440 | else if (strlen(w + 5) > 32) |
e7b84f9d | 441 | pr_err("name too long, ignoring %s\n", w); |
947fd4dd | 442 | else |
421c6c04 | 443 | strcpy(mis.name, w + 5); |
947fd4dd | 444 | |
7ef02d01 NB |
445 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { |
446 | if (mis.bitmap_file) | |
e7b84f9d | 447 | pr_err("only specify bitmap file once. %s ignored\n", |
7ef02d01 NB |
448 | w); |
449 | else | |
421c6c04 | 450 | mis.bitmap_file = xstrdup(w + 7); |
7ef02d01 | 451 | |
421c6c04 | 452 | } else if (strncasecmp(w, "devices=", 8 ) == 0) { |
52826846 | 453 | if (mis.devices) |
e7b84f9d | 454 | pr_err("only specify devices once (use a comma separated list). %s ignored\n", |
52826846 NB |
455 | w); |
456 | else | |
421c6c04 JS |
457 | mis.devices = xstrdup(w + 8); |
458 | } else if (strncasecmp(w, "spare-group=", 12) == 0) { | |
52826846 | 459 | if (mis.spare_group) |
e7b84f9d | 460 | pr_err("only specify one spare group per array. %s ignored.\n", |
52826846 NB |
461 | w); |
462 | else | |
421c6c04 | 463 | mis.spare_group = xstrdup(w + 12); |
cd29a5c8 NB |
464 | } else if (strncasecmp(w, "level=", 6) == 0 ) { |
465 | /* this is mainly for compatability with --brief output */ | |
421c6c04 JS |
466 | mis.level = map_name(pers, w + 6); |
467 | } else if (strncasecmp(w, "disks=", 6) == 0) { | |
cd29a5c8 | 468 | /* again, for compat */ |
421c6c04 JS |
469 | mis.raid_disks = atoi(w + 6); |
470 | } else if (strncasecmp(w, "num-devices=", 12) == 0) { | |
b83d95f3 | 471 | /* again, for compat */ |
421c6c04 JS |
472 | mis.raid_disks = atoi(w + 12); |
473 | } else if (strncasecmp(w, "spares=", 7) == 0) { | |
feb716e9 | 474 | /* for warning if not all spares present */ |
421c6c04 | 475 | mis.spare_disks = atoi(w + 7); |
f9ce90ba NB |
476 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
477 | /* style of metadata on the devices. */ | |
478 | int i; | |
aba69144 | 479 | |
82d9eba6 | 480 | for(i=0; superlist[i] && !mis.st; i++) |
421c6c04 JS |
481 | mis.st = superlist[i]-> |
482 | match_metadata_desc(w + 9); | |
82d9eba6 NB |
483 | |
484 | if (!mis.st) | |
421c6c04 JS |
485 | pr_err("metadata format %s unknown, ignored.\n", |
486 | w + 9); | |
dd0781e5 NB |
487 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { |
488 | /* whether to create device special files as needed */ | |
421c6c04 | 489 | mis.autof = parse_auto(w + 5, "auto type", 0); |
dbb44303 N |
490 | } else if (strncasecmp(w, "member=", 7) == 0) { |
491 | /* subarray within a container */ | |
421c6c04 | 492 | mis.member = xstrdup(w + 7); |
dbb44303 | 493 | } else if (strncasecmp(w, "container=", 10) == 0) { |
421c6c04 JS |
494 | /* The container holding this subarray. |
495 | * Either a device name or a uuid */ | |
496 | mis.container = xstrdup(w + 10); | |
52826846 | 497 | } else { |
e7b84f9d | 498 | pr_err("unrecognised word on ARRAY line: %s\n", |
52826846 NB |
499 | w); |
500 | } | |
501 | } | |
b1b12d58 N |
502 | if (mis.uuid_set == 0 && mis.devices == NULL && |
503 | mis.super_minor == UnSet && mis.name[0] == 0 && | |
aa7c284c | 504 | (mis.container == NULL || mis.member == NULL)) |
421c6c04 JS |
505 | pr_err("ARRAY line %s has no identity information.\n", |
506 | mis.devname); | |
52826846 | 507 | else { |
503975b9 | 508 | mi = xmalloc(sizeof(*mi)); |
52826846 | 509 | *mi = mis; |
503975b9 | 510 | mi->devname = mis.devname ? xstrdup(mis.devname) : NULL; |
52826846 NB |
511 | mi->next = NULL; |
512 | *mddevlp = mi; | |
513 | mddevlp = &mi->next; | |
82b27616 | 514 | } |
82b27616 | 515 | } |
e0d19036 NB |
516 | |
517 | static char *alert_email = NULL; | |
518 | void mailline(char *line) | |
519 | { | |
520 | char *w; | |
521 | ||
421c6c04 | 522 | for (w = dl_next(line); w != line; w = dl_next(w)) |
e0d19036 | 523 | if (alert_email == NULL) |
503975b9 | 524 | alert_email = xstrdup(w); |
e0d19036 NB |
525 | } |
526 | ||
4948b8f7 NB |
527 | static char *alert_mail_from = NULL; |
528 | void mailfromline(char *line) | |
529 | { | |
530 | char *w; | |
531 | ||
421c6c04 | 532 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
4948b8f7 | 533 | if (alert_mail_from == NULL) |
503975b9 | 534 | alert_mail_from = xstrdup(w); |
4948b8f7 | 535 | else { |
3d2c4fc7 DW |
536 | char *t = NULL; |
537 | ||
78fbcc10 | 538 | if (xasprintf(&t, "%s %s", alert_mail_from, w) > 0) { |
3d2c4fc7 DW |
539 | free(alert_mail_from); |
540 | alert_mail_from = t; | |
541 | } | |
4948b8f7 NB |
542 | } |
543 | } | |
544 | } | |
545 | ||
e0d19036 NB |
546 | static char *alert_program = NULL; |
547 | void programline(char *line) | |
548 | { | |
549 | char *w; | |
550 | ||
421c6c04 | 551 | for (w = dl_next(line); w != line; w = dl_next(w)) |
e0d19036 | 552 | if (alert_program == NULL) |
503975b9 | 553 | alert_program = xstrdup(w); |
e0d19036 NB |
554 | } |
555 | ||
997aed5d | 556 | static char *home_host = NULL; |
0ac91628 | 557 | static int require_homehost = 1; |
997aed5d NB |
558 | void homehostline(char *line) |
559 | { | |
560 | char *w; | |
561 | ||
421c6c04 JS |
562 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
563 | if (strcasecmp(w, "<ignore>") == 0) | |
0ac91628 | 564 | require_homehost = 0; |
0f23aa88 | 565 | else if (home_host == NULL) { |
421c6c04 | 566 | if (strcasecmp(w, "<none>") == 0) |
503975b9 | 567 | home_host = xstrdup(""); |
0f23aa88 | 568 | else |
503975b9 | 569 | home_host = xstrdup(w); |
3c6e95c1 | 570 | } |
997aed5d NB |
571 | } |
572 | } | |
573 | ||
7716570e GJ |
574 | static char *home_cluster = NULL; |
575 | void homeclusterline(char *line) | |
576 | { | |
577 | char *w; | |
578 | ||
421c6c04 | 579 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
7716570e | 580 | if (home_cluster == NULL) { |
421c6c04 | 581 | if (strcasecmp(w, "<none>") == 0) |
7716570e GJ |
582 | home_cluster = xstrdup(""); |
583 | else | |
584 | home_cluster = xstrdup(w); | |
585 | } | |
586 | } | |
587 | } | |
588 | ||
4e8d9f0a N |
589 | char auto_yes[] = "yes"; |
590 | char auto_no[] = "no"; | |
591 | char auto_homehost[] = "homehost"; | |
592 | ||
593 | static int auto_seen = 0; | |
31015d57 N |
594 | void autoline(char *line) |
595 | { | |
4d0b563b | 596 | char *w; |
4e8d9f0a N |
597 | char *seen; |
598 | int super_cnt; | |
599 | char *dflt = auto_yes; | |
600 | int homehost = 0; | |
601 | int i; | |
4d0b563b | 602 | |
3c6e95c1 | 603 | if (auto_seen) |
31015d57 | 604 | return; |
dbdf3f15 | 605 | auto_seen = 1; |
3c6e95c1 | 606 | |
421c6c04 JS |
607 | /* |
608 | * Parse the 'auto' line creating policy statements for the 'auto' | |
609 | * policy. | |
4e8d9f0a N |
610 | * |
611 | * The default is 'yes' but the 'auto' line might over-ride that. | |
612 | * Words in the line are processed in order with the first | |
613 | * match winning. | |
614 | * word can be: | |
615 | * +version - that version can be assembled | |
616 | * -version - that version cannot be auto-assembled | |
617 | * yes or +all - any other version can be assembled | |
618 | * no or -all - no other version can be assembled. | |
619 | * homehost - any array associated by 'homehost' to this | |
620 | * host can be assembled. | |
621 | * | |
622 | * Thus: | |
623 | * +ddf -0.90 homehost -all | |
624 | * will auto-assemble any ddf array, no 0.90 array, and | |
625 | * any other array (imsm, 1.x) if and only if it is identified | |
626 | * as belonging to this host. | |
627 | * | |
628 | * We translate that to policy by creating 'auto=yes' when we see | |
629 | * a '+version' line, 'auto=no' if we see '-version' before 'homehost', | |
630 | * or 'auto=homehost' if we see '-version' after 'homehost'. | |
b10c663e | 631 | * When we see yes, no, +all or -all we stop and any version that hasn't |
4e8d9f0a N |
632 | * been seen gets an appropriate auto= entry. |
633 | */ | |
4d0b563b | 634 | |
421c6c04 JS |
635 | /* |
636 | * If environment variable MDADM_CONF_AUTO is defined, then | |
2dfb675b N |
637 | * it is prepended to the auto line. This allow a script |
638 | * to easily disable some metadata types. | |
639 | */ | |
640 | w = getenv("MDADM_CONF_AUTO"); | |
641 | if (w && *w) { | |
642 | char *l = xstrdup(w); | |
643 | char *head = line; | |
644 | w = strtok(l, " \t"); | |
645 | while (w) { | |
646 | char *nw = dl_strdup(w); | |
647 | dl_insert(head, nw); | |
648 | head = nw; | |
649 | w = strtok(NULL, " \t"); | |
650 | } | |
651 | free(l); | |
652 | } | |
653 | ||
4e8d9f0a N |
654 | for (super_cnt = 0; superlist[super_cnt]; super_cnt++) |
655 | ; | |
503975b9 | 656 | seen = xcalloc(super_cnt, 1); |
4d0b563b | 657 | |
421c6c04 | 658 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
4e8d9f0a N |
659 | char *val; |
660 | ||
661 | if (strcasecmp(w, "yes") == 0) { | |
662 | dflt = auto_yes; | |
663 | break; | |
664 | } | |
665 | if (strcasecmp(w, "no") == 0) { | |
666 | if (homehost) | |
667 | dflt = auto_homehost; | |
668 | else | |
669 | dflt = auto_no; | |
670 | break; | |
671 | } | |
672 | if (strcasecmp(w, "homehost") == 0) { | |
673 | homehost = 1; | |
674 | continue; | |
675 | } | |
676 | if (w[0] == '+') | |
677 | val = auto_yes; | |
678 | else if (w[0] == '-') { | |
679 | if (homehost) | |
680 | val = auto_homehost; | |
681 | else | |
682 | val = auto_no; | |
683 | } else | |
684 | continue; | |
685 | ||
421c6c04 | 686 | if (strcasecmp(w + 1, "all") == 0) { |
4e8d9f0a N |
687 | dflt = val; |
688 | break; | |
689 | } | |
690 | for (i = 0; superlist[i]; i++) { | |
691 | const char *version = superlist[i]->name; | |
421c6c04 | 692 | if (strcasecmp(w + 1, version) == 0) |
4e8d9f0a N |
693 | break; |
694 | /* 1 matches 1.x, 0 matches 0.90 */ | |
421c6c04 | 695 | if (version[1] == '.' && strlen(w + 1) == 1 && |
4e8d9f0a N |
696 | w[1] == version[0]) |
697 | break; | |
698 | /* 1.anything matches 1.x */ | |
699 | if (strcmp(version, "1.x") == 0 && | |
421c6c04 | 700 | strncmp(w + 1, "1.", 2) == 0) |
4e8d9f0a N |
701 | break; |
702 | } | |
703 | if (superlist[i] == NULL) | |
704 | /* ignore this word */ | |
705 | continue; | |
706 | if (seen[i]) | |
707 | /* already know about this metadata */ | |
708 | continue; | |
421c6c04 JS |
709 | policy_add(rule_policy, pol_auto, val, pol_metadata, |
710 | superlist[i]->name, NULL); | |
4e8d9f0a | 711 | seen[i] = 1; |
4d0b563b | 712 | } |
4e8d9f0a N |
713 | for (i = 0; i < super_cnt; i++) |
714 | if (!seen[i]) | |
421c6c04 JS |
715 | policy_add(rule_policy, pol_auto, dflt, pol_metadata, |
716 | superlist[i]->name, NULL); | |
42de2ac2 TJ |
717 | |
718 | free(seen); | |
31015d57 | 719 | } |
e0d19036 | 720 | |
82b27616 NB |
721 | int loaded = 0; |
722 | ||
8aec876d NB |
723 | static char *conffile = NULL; |
724 | void set_conffile(char *file) | |
725 | { | |
726 | conffile = file; | |
727 | } | |
728 | ||
15af9692 | 729 | void conf_file(FILE *f) |
82b27616 | 730 | { |
52826846 | 731 | char *line; |
421c6c04 | 732 | while ((line = conf_line(f))) { |
52826846 | 733 | switch(match_keyword(line)) { |
8fe9db0f | 734 | case Devices: |
52826846 NB |
735 | devline(line); |
736 | break; | |
8fe9db0f | 737 | case Array: |
52826846 NB |
738 | arrayline(line); |
739 | break; | |
8fe9db0f | 740 | case Mailaddr: |
e0d19036 NB |
741 | mailline(line); |
742 | break; | |
8fe9db0f | 743 | case Mailfrom: |
4948b8f7 NB |
744 | mailfromline(line); |
745 | break; | |
8fe9db0f NB |
746 | case Program: |
747 | programline(line); | |
748 | break; | |
749 | case CreateDev: | |
5bbb4842 NB |
750 | createline(line); |
751 | break; | |
997aed5d NB |
752 | case Homehost: |
753 | homehostline(line); | |
754 | break; | |
7716570e GJ |
755 | case HomeCluster: |
756 | homeclusterline(line); | |
757 | break; | |
31015d57 N |
758 | case AutoMode: |
759 | autoline(line); | |
760 | break; | |
5527fc74 N |
761 | case Policy: |
762 | policyline(line, rule_policy); | |
763 | break; | |
764 | case PartPolicy: | |
765 | policyline(line, rule_part); | |
766 | break; | |
52826846 | 767 | default: |
e7b84f9d | 768 | pr_err("Unknown keyword %s\n", line); |
52826846 NB |
769 | } |
770 | free_line(line); | |
82b27616 | 771 | } |
15af9692 N |
772 | } |
773 | ||
343b7e75 N |
774 | struct fname { |
775 | struct fname *next; | |
776 | char name[]; | |
777 | }; | |
778 | ||
779 | void conf_file_or_dir(FILE *f) | |
780 | { | |
781 | struct stat st; | |
782 | DIR *dir; | |
783 | struct dirent *dp; | |
784 | struct fname *list = NULL; | |
785 | ||
786 | fstat(fileno(f), &st); | |
787 | if (S_ISREG(st.st_mode)) | |
788 | conf_file(f); | |
789 | else if (!S_ISDIR(st.st_mode)) | |
790 | return; | |
791 | #if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L | |
792 | dir = fdopendir(fileno(f)); | |
793 | if (!dir) | |
794 | return; | |
795 | while ((dp = readdir(dir)) != NULL) { | |
796 | int l; | |
797 | struct fname *fn, **p; | |
798 | if (dp->d_ino == 0) | |
799 | continue; | |
800 | if (dp->d_name[0] == '.') | |
801 | continue; | |
802 | l = strlen(dp->d_name); | |
421c6c04 | 803 | if (l < 6 || strcmp(dp->d_name + l - 5, ".conf") != 0) |
343b7e75 | 804 | continue; |
421c6c04 | 805 | fn = xmalloc(sizeof(*fn) + l + 1); |
343b7e75 N |
806 | strcpy(fn->name, dp->d_name); |
807 | for (p = &list; | |
808 | *p && strcmp((*p)->name, fn->name) < 0; | |
809 | p = & (*p)->next) | |
810 | ; | |
811 | fn->next = *p; | |
812 | *p = fn; | |
813 | } | |
814 | while (list) { | |
815 | int fd; | |
816 | FILE *f2; | |
817 | struct fname *fn = list; | |
818 | list = list->next; | |
819 | fd = openat(fileno(f), fn->name, O_RDONLY); | |
820 | free(fn); | |
821 | if (fd < 0) | |
822 | continue; | |
823 | f2 = fdopen(fd, "r"); | |
824 | if (!f2) { | |
825 | close(fd); | |
826 | continue; | |
827 | } | |
828 | conf_file(f2); | |
829 | fclose(f2); | |
830 | } | |
831 | closedir(dir); | |
832 | #endif | |
833 | } | |
834 | ||
15af9692 N |
835 | void load_conffile(void) |
836 | { | |
837 | FILE *f; | |
9dc70cbc | 838 | char *confdir = NULL; |
2dfb675b | 839 | char *head; |
15af9692 | 840 | |
824e5727 N |
841 | if (loaded) |
842 | return; | |
9dc70cbc | 843 | if (conffile == NULL) { |
15af9692 | 844 | conffile = DefaultConfFile; |
9dc70cbc N |
845 | confdir = DefaultConfDir; |
846 | } | |
15af9692 | 847 | |
421c6c04 | 848 | if (strcmp(conffile, "partitions") == 0) { |
15af9692 N |
849 | char *list = dl_strdup("DEV"); |
850 | dl_init(list); | |
851 | dl_add(list, dl_strdup("partitions")); | |
852 | devline(list); | |
853 | free_line(list); | |
824e5727 N |
854 | } else if (strcmp(conffile, "none") != 0) { |
855 | f = fopen(conffile, "r"); | |
856 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. | |
857 | * To allow Debian users to compile from clean source and still | |
858 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
859 | * if /etc/mdadm.conf doesn't exist | |
860 | */ | |
421c6c04 | 861 | if (f == NULL && conffile == DefaultConfFile) { |
824e5727 N |
862 | f = fopen(DefaultAltConfFile, "r"); |
863 | if (f) { | |
864 | conffile = DefaultAltConfFile; | |
865 | confdir = DefaultAltConfDir; | |
866 | } | |
9dc70cbc | 867 | } |
9dc70cbc | 868 | if (f) { |
9dc70cbc N |
869 | conf_file_or_dir(f); |
870 | fclose(f); | |
871 | } | |
824e5727 N |
872 | if (confdir) { |
873 | f = fopen(confdir, "r"); | |
874 | if (f) { | |
875 | conf_file_or_dir(f); | |
876 | fclose(f); | |
877 | } | |
878 | } | |
15af9692 | 879 | } |
2dfb675b N |
880 | /* If there was no AUTO line, process an empty line |
881 | * now so that the MDADM_CONF_AUTO env var gets processed. | |
882 | */ | |
883 | head = dl_strdup("AUTO"); | |
884 | dl_init(head); | |
885 | autoline(head); | |
886 | free_line(head); | |
887 | ||
824e5727 | 888 | loaded = 1; |
82b27616 NB |
889 | } |
890 | ||
8aec876d | 891 | char *conf_get_mailaddr(void) |
e0d19036 | 892 | { |
8aec876d | 893 | load_conffile(); |
e0d19036 NB |
894 | return alert_email; |
895 | } | |
896 | ||
8aec876d | 897 | char *conf_get_mailfrom(void) |
4948b8f7 | 898 | { |
8aec876d | 899 | load_conffile(); |
4948b8f7 NB |
900 | return alert_mail_from; |
901 | } | |
902 | ||
8aec876d | 903 | char *conf_get_program(void) |
e0d19036 | 904 | { |
8aec876d | 905 | load_conffile(); |
e0d19036 NB |
906 | return alert_program; |
907 | } | |
908 | ||
0ac91628 | 909 | char *conf_get_homehost(int *require_homehostp) |
997aed5d | 910 | { |
8aec876d | 911 | load_conffile(); |
0ac91628 N |
912 | if (require_homehostp) |
913 | *require_homehostp = require_homehost; | |
997aed5d NB |
914 | return home_host; |
915 | } | |
916 | ||
7716570e GJ |
917 | char *conf_get_homecluster(void) |
918 | { | |
919 | load_conffile(); | |
920 | return home_cluster; | |
921 | } | |
922 | ||
8aec876d | 923 | struct createinfo *conf_get_create_info(void) |
5bbb4842 | 924 | { |
8aec876d | 925 | load_conffile(); |
5bbb4842 NB |
926 | return &createinfo; |
927 | } | |
82b27616 | 928 | |
fa56eddb | 929 | struct mddev_ident *conf_get_ident(char *dev) |
64c4757e | 930 | { |
fa56eddb | 931 | struct mddev_ident *rv; |
8aec876d | 932 | load_conffile(); |
52826846 | 933 | rv = mddevlist; |
421c6c04 JS |
934 | while (dev && rv && (rv->devname == NULL || |
935 | !devname_matches(dev, rv->devname))) | |
52826846 NB |
936 | rv = rv->next; |
937 | return rv; | |
64c4757e NB |
938 | } |
939 | ||
a655e550 | 940 | static void append_dlist(struct mddev_dev **dlp, struct mddev_dev *list) |
f64165f7 DW |
941 | { |
942 | while (*dlp) | |
943 | dlp = &(*dlp)->next; | |
944 | *dlp = list; | |
945 | } | |
946 | ||
a655e550 | 947 | struct mddev_dev *conf_get_devs() |
64c4757e | 948 | { |
52826846 NB |
949 | glob_t globbuf; |
950 | struct conf_dev *cd; | |
951 | int flags = 0; | |
a655e550 | 952 | static struct mddev_dev *dlist = NULL; |
98c6faba | 953 | unsigned int i; |
52826846 NB |
954 | |
955 | while (dlist) { | |
a655e550 | 956 | struct mddev_dev *t = dlist; |
52826846 NB |
957 | dlist = dlist->next; |
958 | free(t->devname); | |
959 | free(t); | |
960 | } | |
aba69144 | 961 | |
8aec876d | 962 | load_conffile(); |
a99d6b66 | 963 | |
f8f84cd5 DW |
964 | if (cdevlist == NULL) { |
965 | /* default to 'partitions' and 'containers' */ | |
a99d6b66 | 966 | dlist = load_partitions(); |
f8f84cd5 DW |
967 | append_dlist(&dlist, load_containers()); |
968 | } | |
a99d6b66 | 969 | |
421c6c04 JS |
970 | for (cd = cdevlist; cd; cd = cd->next) { |
971 | if (strcasecmp(cd->name, "partitions") == 0) | |
f64165f7 | 972 | append_dlist(&dlist, load_partitions()); |
421c6c04 | 973 | else if (strcasecmp(cd->name, "containers") == 0) |
f64165f7 | 974 | append_dlist(&dlist, load_containers()); |
057bd352 NB |
975 | else { |
976 | glob(cd->name, flags, NULL, &globbuf); | |
977 | flags |= GLOB_APPEND; | |
978 | } | |
52826846 | 979 | } |
e0d19036 | 980 | if (flags & GLOB_APPEND) { |
421c6c04 | 981 | for (i = 0; i < globbuf.gl_pathc; i++) { |
6a674388 JS |
982 | struct mddev_dev *t; |
983 | t = xcalloc(1, sizeof(*t)); | |
503975b9 | 984 | t->devname = xstrdup(globbuf.gl_pathv[i]); |
e0d19036 NB |
985 | t->next = dlist; |
986 | dlist = t; | |
82b27616 | 987 | /* printf("one dev is %s\n", t->devname);*/ |
e0d19036 NB |
988 | } |
989 | globfree(&globbuf); | |
52826846 | 990 | } |
82b27616 | 991 | |
52826846 | 992 | return dlist; |
64c4757e NB |
993 | } |
994 | ||
8382f19b NB |
995 | int conf_test_dev(char *devname) |
996 | { | |
997 | struct conf_dev *cd; | |
998 | if (cdevlist == NULL) | |
999 | /* allow anything by default */ | |
1000 | return 1; | |
421c6c04 | 1001 | for (cd = cdevlist; cd; cd = cd->next) { |
8382f19b NB |
1002 | if (strcasecmp(cd->name, "partitions") == 0) |
1003 | return 1; | |
1004 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
1005 | return 1; | |
1006 | } | |
1007 | return 0; | |
1008 | } | |
1009 | ||
4e8d9f0a | 1010 | int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost) |
31015d57 | 1011 | { |
4e8d9f0a N |
1012 | /* If anyone said 'yes', that sticks. |
1013 | * else if homehost applies, use that | |
1014 | * else if there is a 'no', say 'no'. | |
1015 | * else 'yes'. | |
31015d57 | 1016 | */ |
4e8d9f0a | 1017 | struct dev_policy *p; |
421c6c04 | 1018 | int no = 0, found_homehost = 0; |
31015d57 | 1019 | load_conffile(); |
4e8d9f0a N |
1020 | |
1021 | pol = pol_find(pol, pol_auto); | |
1022 | pol_for_each(p, pol, version) { | |
1023 | if (strcmp(p->value, "yes") == 0) | |
31015d57 | 1024 | return 1; |
b10c663e N |
1025 | if (strcmp(p->value, "homehost") == 0) |
1026 | found_homehost = 1; | |
4e8d9f0a N |
1027 | if (strcmp(p->value, "no") == 0) |
1028 | no = 1; | |
31015d57 | 1029 | } |
b10c663e | 1030 | if (is_homehost && found_homehost) |
4e8d9f0a N |
1031 | return 1; |
1032 | if (no) | |
1033 | return 0; | |
31015d57 N |
1034 | return 1; |
1035 | } | |
8382f19b | 1036 | |
52826846 NB |
1037 | int match_oneof(char *devices, char *devname) |
1038 | { | |
5d500228 N |
1039 | /* check if one of the comma separated patterns in devices |
1040 | * matches devname | |
1041 | */ | |
1042 | ||
1043 | while (devices && *devices) { | |
1044 | char patn[1024]; | |
1045 | char *p = devices; | |
1046 | devices = strchr(devices, ','); | |
1047 | if (!devices) | |
1048 | devices = p + strlen(p); | |
1049 | if (devices-p < 1024) { | |
421c6c04 | 1050 | strncpy(patn, p, devices - p); |
5d500228 | 1051 | patn[devices-p] = 0; |
421c6c04 | 1052 | if (fnmatch(patn, devname, FNM_PATHNAME) == 0) |
5d500228 N |
1053 | return 1; |
1054 | } | |
1055 | if (*devices == ',') | |
1056 | devices++; | |
52826846 | 1057 | } |
5d500228 | 1058 | return 0; |
52826846 | 1059 | } |
0ac91628 N |
1060 | |
1061 | int devname_matches(char *name, char *match) | |
1062 | { | |
1063 | /* See if the given array name matches the | |
1064 | * given match from config file. | |
1065 | * | |
1066 | * First strip and /dev/md/ or /dev/, then | |
1067 | * see if there might be a numeric match of | |
1068 | * mdNN with NN | |
1069 | * then just strcmp | |
1070 | */ | |
1071 | if (strncmp(name, "/dev/md/", 8) == 0) | |
1072 | name += 8; | |
1073 | else if (strncmp(name, "/dev/", 5) == 0) | |
1074 | name += 5; | |
1075 | ||
1076 | if (strncmp(match, "/dev/md/", 8) == 0) | |
1077 | match += 8; | |
1078 | else if (strncmp(match, "/dev/", 5) == 0) | |
1079 | match += 5; | |
1080 | ||
421c6c04 | 1081 | if (strncmp(name, "md", 2) == 0 && isdigit(name[2])) |
0ac91628 | 1082 | name += 2; |
421c6c04 | 1083 | if (strncmp(match, "md", 2) == 0 && isdigit(match[2])) |
0ac91628 N |
1084 | match += 2; |
1085 | ||
1086 | return (strcmp(name, match) == 0); | |
1087 | } | |
1088 | ||
1089 | int conf_name_is_free(char *name) | |
1090 | { | |
4dd2df09 | 1091 | /* Check if this name is already taken by an ARRAY entry in |
0ac91628 N |
1092 | * the config file. |
1093 | * It can be taken either by a match on devname, name, or | |
1094 | * even super-minor. | |
1095 | */ | |
fa56eddb | 1096 | struct mddev_ident *dev; |
0ac91628 N |
1097 | |
1098 | load_conffile(); | |
1099 | for (dev = mddevlist; dev; dev = dev->next) { | |
1100 | char nbuf[100]; | |
1101 | if (dev->devname && devname_matches(name, dev->devname)) | |
1102 | return 0; | |
1103 | if (dev->name[0] && devname_matches(name, dev->name)) | |
1104 | return 0; | |
1105 | sprintf(nbuf, "%d", dev->super_minor); | |
421c6c04 | 1106 | if (dev->super_minor != UnSet && devname_matches(name, nbuf)) |
0ac91628 N |
1107 | return 0; |
1108 | } | |
1109 | return 1; | |
1110 | } | |
360b4636 | 1111 | |
2244d1a9 N |
1112 | struct mddev_ident *conf_match(struct supertype *st, |
1113 | struct mdinfo *info, | |
1114 | char *devname, | |
1115 | int verbose, int *rvp) | |
360b4636 | 1116 | { |
fa56eddb | 1117 | struct mddev_ident *array_list, *match; |
360b4636 N |
1118 | array_list = conf_get_ident(NULL); |
1119 | match = NULL; | |
1120 | for (; array_list; array_list = array_list->next) { | |
1121 | if (array_list->uuid_set && | |
b831b299 JS |
1122 | same_uuid(array_list->uuid, info->uuid, |
1123 | st->ss->swapuuid) == 0) { | |
360b4636 | 1124 | if (verbose >= 2 && array_list->devname) |
e7b84f9d N |
1125 | pr_err("UUID differs from %s.\n", |
1126 | array_list->devname); | |
360b4636 N |
1127 | continue; |
1128 | } | |
1129 | if (array_list->name[0] && | |
1130 | strcasecmp(array_list->name, info->name) != 0) { | |
1131 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1132 | pr_err("Name differs from %s.\n", |
1133 | array_list->devname); | |
360b4636 N |
1134 | continue; |
1135 | } | |
9f1b0f0f | 1136 | if (array_list->devices && devname && |
360b4636 N |
1137 | !match_oneof(array_list->devices, devname)) { |
1138 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1139 | pr_err("Not a listed device for %s.\n", |
1140 | array_list->devname); | |
360b4636 N |
1141 | continue; |
1142 | } | |
1143 | if (array_list->super_minor != UnSet && | |
1144 | array_list->super_minor != info->array.md_minor) { | |
1145 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1146 | pr_err("Different super-minor to %s.\n", |
1147 | array_list->devname); | |
360b4636 N |
1148 | continue; |
1149 | } | |
421c6c04 JS |
1150 | if (!array_list->uuid_set && !array_list->name[0] && |
1151 | !array_list->devices && array_list->super_minor == UnSet) { | |
360b4636 | 1152 | if (verbose >= 2 && array_list->devname) |
7a862a02 | 1153 | pr_err("%s doesn't have any identifying information.\n", |
e7b84f9d | 1154 | array_list->devname); |
360b4636 N |
1155 | continue; |
1156 | } | |
1157 | /* FIXME, should I check raid_disks and level too?? */ | |
1158 | ||
1159 | if (match) { | |
1160 | if (verbose >= 0) { | |
1161 | if (match->devname && array_list->devname) | |
7a862a02 | 1162 | pr_err("we match both %s and %s - cannot decide which to use.\n", |
e7b84f9d N |
1163 | match->devname, |
1164 | array_list->devname); | |
360b4636 | 1165 | else |
7a862a02 | 1166 | pr_err("multiple lines in mdadm.conf match\n"); |
360b4636 | 1167 | } |
2244d1a9 N |
1168 | if (rvp) |
1169 | *rvp = 2; | |
1170 | match = NULL; | |
1171 | break; | |
360b4636 N |
1172 | } |
1173 | match = array_list; | |
1174 | } | |
1175 | return match; | |
1176 | } | |
7c336758 LO |
1177 | |
1178 | int conf_verify_devnames(struct mddev_ident *array_list) | |
1179 | { | |
1180 | struct mddev_ident *a1, *a2; | |
1181 | ||
1182 | for (a1 = array_list; a1; a1 = a1->next) { | |
1183 | if (!a1->devname) | |
1184 | continue; | |
13f2dd6b N |
1185 | if (strcmp(a1->devname, "<ignore>") == 0) |
1186 | continue; | |
7c336758 LO |
1187 | for (a2 = a1->next; a2; a2 = a2->next) { |
1188 | if (!a2->devname) | |
1189 | continue; | |
1190 | if (strcmp(a1->devname, a2->devname) != 0) | |
1191 | continue; | |
1192 | ||
1193 | if (a1->uuid_set && a2->uuid_set) { | |
1194 | char nbuf[64]; | |
1195 | __fname_from_uuid(a1->uuid, 0, nbuf, ':'); | |
e7b84f9d N |
1196 | pr_err("Devices %s and ", |
1197 | nbuf); | |
7c336758 LO |
1198 | __fname_from_uuid(a2->uuid, 0, nbuf, ':'); |
1199 | fprintf(stderr, | |
1200 | "%s have the same name: %s\n", | |
1201 | nbuf, a1->devname); | |
1202 | } else | |
7a862a02 | 1203 | pr_err("Device %s given twice in config file\n", a1->devname); |
7c336758 LO |
1204 | return 1; |
1205 | } | |
1206 | } | |
1207 | ||
1208 | return 0; | |
1209 | } |