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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, |
b0681598 | 83 | Homehost, HomeCluster, AutoMode, Policy, PartPolicy, Sysfs, |
0663137c | 84 | MonitorDelay, LTEnd }; |
8fe9db0f NB |
85 | char *keywords[] = { |
86 | [Devices] = "devices", | |
87 | [Array] = "array", | |
88 | [Mailaddr] = "mailaddr", | |
89 | [Mailfrom] = "mailfrom", | |
90 | [Program] = "program", | |
8382f19b | 91 | [CreateDev]= "create", |
8fe9db0f | 92 | [Homehost] = "homehost", |
7716570e | 93 | [HomeCluster] = "homecluster", |
31015d57 | 94 | [AutoMode] = "auto", |
5527fc74 N |
95 | [Policy] = "policy", |
96 | [PartPolicy]="part-policy", | |
b0681598 | 97 | [Sysfs] = "sysfs", |
0663137c | 98 | [MonitorDelay] = "monitordelay", |
8fe9db0f NB |
99 | [LTEnd] = NULL |
100 | }; | |
82b27616 NB |
101 | |
102 | /* | |
103 | * match_keyword returns an index into the keywords array, or -1 for no match | |
104 | * case is ignored, and at least three characters must be given | |
105 | */ | |
106 | ||
107 | int match_keyword(char *word) | |
108 | { | |
52826846 NB |
109 | int len = strlen(word); |
110 | int n; | |
aba69144 | 111 | |
421c6c04 JS |
112 | if (len < 3) |
113 | return -1; | |
114 | for (n = 0; keywords[n]; n++) { | |
115 | if (strncasecmp(word, keywords[n], len) == 0) | |
52826846 NB |
116 | return n; |
117 | } | |
421c6c04 | 118 | |
52826846 | 119 | return -1; |
82b27616 NB |
120 | } |
121 | ||
7b3b691b MT |
122 | /** |
123 | * is_devname_ignore() - check if &devname is a special "<ignore>" keyword. | |
124 | */ | |
125 | bool is_devname_ignore(char *devname) | |
126 | { | |
127 | static const char keyword[] = "<ignore>"; | |
128 | ||
129 | if (strcasecmp(devname, keyword) == 0) | |
130 | return true; | |
131 | return false; | |
132 | } | |
133 | ||
7fcbfd7c MT |
134 | /** |
135 | * ident_init() - Set defaults. | |
136 | * @ident: ident pointer, not NULL. | |
137 | */ | |
138 | inline void ident_init(struct mddev_ident *ident) | |
139 | { | |
140 | assert(ident); | |
141 | ||
142 | ident->assembled = false; | |
143 | ident->autof = 0; | |
144 | ident->bitmap_fd = -1; | |
145 | ident->bitmap_file = NULL; | |
146 | ident->container = NULL; | |
147 | ident->devices = NULL; | |
148 | ident->devname = NULL; | |
149 | ident->level = UnSet; | |
150 | ident->member = NULL; | |
151 | ident->name[0] = 0; | |
152 | ident->next = NULL; | |
153 | ident->raid_disks = UnSet; | |
154 | ident->spare_group = NULL; | |
155 | ident->spare_disks = 0; | |
156 | ident->st = NULL; | |
157 | ident->super_minor = UnSet; | |
158 | ident->uuid[0] = 0; | |
159 | ident->uuid_set = 0; | |
160 | } | |
161 | ||
82b27616 | 162 | struct conf_dev { |
5d500228 N |
163 | struct conf_dev *next; |
164 | char *name; | |
82b27616 NB |
165 | } *cdevlist = NULL; |
166 | ||
a655e550 | 167 | struct mddev_dev *load_partitions(void) |
5787fa49 NB |
168 | { |
169 | FILE *f = fopen("/proc/partitions", "r"); | |
170 | char buf[1024]; | |
a655e550 | 171 | struct mddev_dev *rv = NULL; |
421c6c04 | 172 | |
5787fa49 | 173 | if (f == NULL) { |
e7b84f9d | 174 | pr_err("cannot open /proc/partitions\n"); |
057bd352 | 175 | return NULL; |
5787fa49 NB |
176 | } |
177 | while (fgets(buf, 1024, f)) { | |
178 | int major, minor; | |
98c6faba | 179 | char *name, *mp; |
a655e550 | 180 | struct mddev_dev *d; |
8b0dabea | 181 | |
5787fa49 NB |
182 | buf[1023] = '\0'; |
183 | if (buf[0] != ' ') | |
184 | continue; | |
98c6faba | 185 | major = strtoul(buf, &mp, 10); |
aba69144 | 186 | if (mp == buf || *mp != ' ') |
5787fa49 | 187 | continue; |
98c6faba NB |
188 | minor = strtoul(mp, NULL, 10); |
189 | ||
16c6fa80 | 190 | name = map_dev(major, minor, 1); |
e81cdd9f NB |
191 | if (!name) |
192 | continue; | |
6a674388 | 193 | d = xcalloc(1, sizeof(*d)); |
503975b9 | 194 | d->devname = xstrdup(name); |
8b0dabea NB |
195 | d->next = rv; |
196 | rv = d; | |
5787fa49 | 197 | } |
dd0781e5 | 198 | fclose(f); |
057bd352 | 199 | return rv; |
5787fa49 | 200 | } |
82b27616 | 201 | |
a655e550 | 202 | struct mddev_dev *load_containers(void) |
f64165f7 | 203 | { |
b4924f46 | 204 | struct mdstat_ent *mdstat = mdstat_read(0, 0); |
f64165f7 | 205 | struct mdstat_ent *ent; |
a655e550 N |
206 | struct mddev_dev *d; |
207 | struct mddev_dev *rv = NULL; | |
eb2306f8 | 208 | struct map_ent *map = NULL, *me; |
f64165f7 DW |
209 | |
210 | if (!mdstat) | |
211 | return NULL; | |
212 | ||
213 | for (ent = mdstat; ent; ent = ent->next) | |
214 | if (ent->metadata_version && | |
215 | strncmp(ent->metadata_version, "external:", 9) == 0 && | |
216 | !is_subarray(&ent->metadata_version[9])) { | |
6a674388 | 217 | d = xcalloc(1, sizeof(*d)); |
9581efb1 | 218 | me = map_by_devnm(&map, ent->devnm); |
eb2306f8 N |
219 | if (me) |
220 | d->devname = xstrdup(me->path); | |
9581efb1 | 221 | else if (asprintf(&d->devname, "/dev/%s", ent->devnm) < 0) { |
f64165f7 DW |
222 | free(d); |
223 | continue; | |
224 | } | |
225 | d->next = rv; | |
f64165f7 | 226 | rv = d; |
898bd1ec GJ |
227 | map_free(map); |
228 | map = NULL; | |
f64165f7 DW |
229 | } |
230 | free_mdstat(mdstat); | |
231 | ||
232 | return rv; | |
233 | } | |
234 | ||
5bbb4842 | 235 | struct createinfo createinfo = { |
75723446 | 236 | .autof = 2, /* by default, create devices with standard names */ |
eca944fa | 237 | .names = 0, /* By default, stick with numbered md devices. */ |
e2efe9e7 | 238 | .bblist = 1, /* Use a bad block list by default */ |
5bbb4842 NB |
239 | #ifdef DEBIAN |
240 | .gid = 6, /* disk */ | |
241 | .mode = 0660, | |
242 | #else | |
243 | .mode = 0600, | |
244 | #endif | |
245 | }; | |
246 | ||
f1ae21c4 | 247 | int parse_auto(char *str, char *msg, int config) |
5bbb4842 NB |
248 | { |
249 | int autof; | |
250 | if (str == NULL || *str == 0) | |
f1ae21c4 | 251 | autof = 2; |
421c6c04 | 252 | else if (strcasecmp(str, "no") == 0) |
f1ae21c4 | 253 | autof = 1; |
421c6c04 | 254 | else if (strcasecmp(str, "yes") == 0) |
f1ae21c4 | 255 | autof = 2; |
421c6c04 JS |
256 | else if (strcasecmp(str, "md") == 0) |
257 | autof = config ? 5:3; | |
5bbb4842 NB |
258 | else { |
259 | /* There might be digits, and maybe a hypen, at the end */ | |
260 | char *e = str + strlen(str); | |
261 | int num = 4; | |
262 | int len; | |
263 | while (e > str && isdigit(e[-1])) | |
264 | e--; | |
265 | if (*e) { | |
266 | num = atoi(e); | |
421c6c04 JS |
267 | if (num <= 0) |
268 | num = 1; | |
5bbb4842 NB |
269 | } |
270 | if (e > str && e[-1] == '-') | |
271 | e--; | |
272 | len = e - str; | |
421c6c04 | 273 | if ((len == 2 && strncasecmp(str, "md", 2) == 0)) { |
f1ae21c4 | 274 | autof = config ? 5 : 3; |
421c6c04 | 275 | } else if ((len == 3 && strncasecmp(str, "yes", 3) == 0)) { |
6ba83b5f | 276 | autof = 2; |
421c6c04 | 277 | } else if ((len == 3 && strncasecmp(str, "mdp", 3) == 0)) { |
f1ae21c4 | 278 | autof = config ? 6 : 4; |
421c6c04 JS |
279 | } else if ((len == 1 && strncasecmp(str, "p", 1) == 0) || |
280 | (len >= 4 && strncasecmp(str, "part", 4) == 0)) { | |
f1ae21c4 NB |
281 | autof = 6; |
282 | } else { | |
e7b84f9d | 283 | pr_err("%s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" |
5bbb4842 NB |
284 | " optionally followed by a number.\n", |
285 | msg, str); | |
286 | exit(2); | |
287 | } | |
f1ae21c4 | 288 | autof |= num << 3; |
5bbb4842 NB |
289 | } |
290 | return autof; | |
291 | } | |
f1ae21c4 | 292 | |
5bbb4842 NB |
293 | static void createline(char *line) |
294 | { | |
295 | char *w; | |
296 | char *ep; | |
297 | ||
421c6c04 | 298 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
5bbb4842 | 299 | if (strncasecmp(w, "auto=", 5) == 0) |
421c6c04 | 300 | createinfo.autof = parse_auto(w + 5, "auto=", 1); |
5bbb4842 NB |
301 | else if (strncasecmp(w, "owner=", 6) == 0) { |
302 | if (w[6] == 0) { | |
e7b84f9d | 303 | pr_err("missing owner name\n"); |
5bbb4842 NB |
304 | continue; |
305 | } | |
421c6c04 | 306 | createinfo.uid = strtoul(w + 6, &ep, 10); |
5bbb4842 | 307 | if (*ep != 0) { |
5bbb4842 NB |
308 | struct passwd *pw; |
309 | /* must be a name */ | |
421c6c04 | 310 | pw = getpwnam(w + 6); |
5bbb4842 NB |
311 | if (pw) |
312 | createinfo.uid = pw->pw_uid; | |
313 | else | |
421c6c04 JS |
314 | pr_err("CREATE user %s not found\n", |
315 | w + 6); | |
5bbb4842 NB |
316 | } |
317 | } else if (strncasecmp(w, "group=", 6) == 0) { | |
318 | if (w[6] == 0) { | |
e7b84f9d | 319 | pr_err("missing group name\n"); |
5bbb4842 NB |
320 | continue; |
321 | } | |
421c6c04 | 322 | createinfo.gid = strtoul(w + 6, &ep, 10); |
5bbb4842 | 323 | if (*ep != 0) { |
5bbb4842 NB |
324 | struct group *gr; |
325 | /* must be a name */ | |
421c6c04 | 326 | gr = getgrnam(w + 6); |
5bbb4842 NB |
327 | if (gr) |
328 | createinfo.gid = gr->gr_gid; | |
329 | else | |
421c6c04 JS |
330 | pr_err("CREATE group %s not found\n", |
331 | w + 6); | |
5bbb4842 NB |
332 | } |
333 | } else if (strncasecmp(w, "mode=", 5) == 0) { | |
334 | if (w[5] == 0) { | |
e7b84f9d | 335 | pr_err("missing CREATE mode\n"); |
5bbb4842 NB |
336 | continue; |
337 | } | |
421c6c04 | 338 | createinfo.mode = strtoul(w + 5, &ep, 8); |
5bbb4842 NB |
339 | if (*ep != 0) { |
340 | createinfo.mode = 0600; | |
e7b84f9d | 341 | pr_err("unrecognised CREATE mode %s\n", |
421c6c04 | 342 | w + 5); |
5bbb4842 | 343 | } |
058574b1 NB |
344 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
345 | /* style of metadata to use by default */ | |
346 | int i; | |
421c6c04 JS |
347 | for (i = 0; superlist[i] && !createinfo.supertype; i++) |
348 | createinfo.supertype = superlist[i]->match_metadata_desc(w + 9); | |
058574b1 | 349 | if (!createinfo.supertype) |
e7b84f9d | 350 | pr_err("metadata format %s unknown, ignoring\n", |
058574b1 | 351 | w+9); |
e4a030a0 | 352 | } else if (strncasecmp(w, "names=yes", 12) == 0) |
eca944fa N |
353 | createinfo.names = 1; |
354 | else if (strncasecmp(w, "names=no", 11) == 0) | |
355 | createinfo.names = 0; | |
e2efe9e7 N |
356 | else if (strncasecmp(w, "bbl=no", 11) == 0) |
357 | createinfo.bblist = 0; | |
358 | else if (strncasecmp(w, "bbl=yes", 11) == 0) | |
359 | createinfo.bblist = 1; | |
38098016 | 360 | else { |
e7b84f9d | 361 | pr_err("unrecognised word on CREATE line: %s\n", |
5bbb4842 NB |
362 | w); |
363 | } | |
364 | } | |
365 | } | |
82b27616 | 366 | |
aba69144 | 367 | void devline(char *line) |
82b27616 | 368 | { |
52826846 NB |
369 | char *w; |
370 | struct conf_dev *cd; | |
371 | ||
421c6c04 | 372 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
f64165f7 DW |
373 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0 || |
374 | strcasecmp(w, "containers") == 0) { | |
503975b9 N |
375 | cd = xmalloc(sizeof(*cd)); |
376 | cd->name = xstrdup(w); | |
52826846 NB |
377 | cd->next = cdevlist; |
378 | cdevlist = cd; | |
379 | } else { | |
421c6c04 | 380 | pr_err("unreconised word on DEVICE line: %s\n", w); |
52826846 | 381 | } |
82b27616 | 382 | } |
82b27616 NB |
383 | } |
384 | ||
fa56eddb N |
385 | struct mddev_ident *mddevlist = NULL; |
386 | struct mddev_ident **mddevlp = &mddevlist; | |
82b27616 | 387 | |
db2d001c N |
388 | static int is_number(char *w) |
389 | { | |
390 | /* check if there are 1 or more digits and nothing else */ | |
391 | int digits = 0; | |
392 | while (*w && isdigit(*w)) { | |
393 | digits++; | |
394 | w++; | |
395 | } | |
396 | return (digits && ! *w); | |
397 | } | |
398 | ||
82b27616 NB |
399 | void arrayline(char *line) |
400 | { | |
52826846 NB |
401 | char *w; |
402 | ||
fa56eddb N |
403 | struct mddev_ident mis; |
404 | struct mddev_ident *mi; | |
52826846 | 405 | |
7fcbfd7c | 406 | ident_init(&mis); |
52826846 | 407 | |
421c6c04 | 408 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
db2d001c N |
409 | if (w[0] == '/' || strchr(w, '=') == NULL) { |
410 | /* This names the device, or is '<ignore>'. | |
411 | * The rules match those in create_mddev. | |
412 | * 'w' must be: | |
413 | * /dev/md/{anything} | |
414 | * /dev/mdNN | |
415 | * /dev/md_dNN | |
416 | * <ignore> | |
417 | * or anything that doesn't start '/' or '<' | |
418 | */ | |
7b3b691b | 419 | if (is_devname_ignore(w) == true || |
b9ce7ab0 | 420 | strncmp(w, DEV_MD_DIR, DEV_MD_DIR_LEN) == 0 || |
db2d001c | 421 | (w[0] != '/' && w[0] != '<') || |
0f8347d4 MT |
422 | (strncmp(w, DEV_NUM_PREF, DEV_NUM_PREF_LEN) == 0 && |
423 | is_number(w + DEV_NUM_PREF_LEN)) || | |
db2d001c | 424 | (strncmp(w, "/dev/md_d", 9) == 0 && |
421c6c04 | 425 | is_number(w + 9))) { |
db2d001c N |
426 | /* This is acceptable */; |
427 | if (mis.devname) | |
7a862a02 | 428 | pr_err("only give one device per ARRAY line: %s and %s\n", |
db2d001c N |
429 | mis.devname, w); |
430 | else | |
431 | mis.devname = w; | |
432 | }else { | |
7a862a02 | 433 | pr_err("%s is an invalid name for an md device - ignored.\n", w); |
db2d001c | 434 | } |
421c6c04 | 435 | } else if (strncasecmp(w, "uuid=", 5) == 0) { |
52826846 | 436 | if (mis.uuid_set) |
e7b84f9d | 437 | pr_err("only specify uuid once, %s ignored.\n", |
421c6c04 | 438 | w); |
52826846 | 439 | else { |
421c6c04 | 440 | if (parse_uuid(w + 5, mis.uuid)) |
52826846 NB |
441 | mis.uuid_set = 1; |
442 | else | |
e7b84f9d | 443 | pr_err("bad uuid: %s\n", w); |
52826846 | 444 | } |
421c6c04 | 445 | } else if (strncasecmp(w, "super-minor=", 12) == 0) { |
f277ce36 | 446 | if (mis.super_minor != UnSet) |
e7b84f9d | 447 | pr_err("only specify super-minor once, %s ignored.\n", |
52826846 NB |
448 | w); |
449 | else { | |
450 | char *endptr; | |
421c6c04 | 451 | int minor = strtol(w + 12, &endptr, 10); |
f21e18ca | 452 | |
421c6c04 | 453 | if (w[12] == 0 || endptr[0] != 0 || minor < 0) |
e7b84f9d | 454 | pr_err("invalid super-minor number: %s\n", |
421c6c04 | 455 | w); |
f21e18ca N |
456 | else |
457 | mis.super_minor = minor; | |
52826846 | 458 | } |
421c6c04 | 459 | } else if (strncasecmp(w, "name=", 5) == 0) { |
947fd4dd | 460 | if (mis.name[0]) |
e7b84f9d | 461 | pr_err("only specify name once, %s ignored.\n", |
947fd4dd | 462 | w); |
421c6c04 | 463 | else if (strlen(w + 5) > 32) |
e7b84f9d | 464 | pr_err("name too long, ignoring %s\n", w); |
947fd4dd | 465 | else |
421c6c04 | 466 | strcpy(mis.name, w + 5); |
947fd4dd | 467 | |
7ef02d01 NB |
468 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { |
469 | if (mis.bitmap_file) | |
e7b84f9d | 470 | pr_err("only specify bitmap file once. %s ignored\n", |
7ef02d01 NB |
471 | w); |
472 | else | |
421c6c04 | 473 | mis.bitmap_file = xstrdup(w + 7); |
7ef02d01 | 474 | |
421c6c04 | 475 | } else if (strncasecmp(w, "devices=", 8 ) == 0) { |
52826846 | 476 | if (mis.devices) |
e7b84f9d | 477 | pr_err("only specify devices once (use a comma separated list). %s ignored\n", |
52826846 NB |
478 | w); |
479 | else | |
421c6c04 JS |
480 | mis.devices = xstrdup(w + 8); |
481 | } else if (strncasecmp(w, "spare-group=", 12) == 0) { | |
52826846 | 482 | if (mis.spare_group) |
e7b84f9d | 483 | pr_err("only specify one spare group per array. %s ignored.\n", |
52826846 NB |
484 | w); |
485 | else | |
421c6c04 | 486 | mis.spare_group = xstrdup(w + 12); |
cd29a5c8 NB |
487 | } else if (strncasecmp(w, "level=", 6) == 0 ) { |
488 | /* this is mainly for compatability with --brief output */ | |
421c6c04 JS |
489 | mis.level = map_name(pers, w + 6); |
490 | } else if (strncasecmp(w, "disks=", 6) == 0) { | |
cd29a5c8 | 491 | /* again, for compat */ |
421c6c04 JS |
492 | mis.raid_disks = atoi(w + 6); |
493 | } else if (strncasecmp(w, "num-devices=", 12) == 0) { | |
b83d95f3 | 494 | /* again, for compat */ |
421c6c04 JS |
495 | mis.raid_disks = atoi(w + 12); |
496 | } else if (strncasecmp(w, "spares=", 7) == 0) { | |
feb716e9 | 497 | /* for warning if not all spares present */ |
421c6c04 | 498 | mis.spare_disks = atoi(w + 7); |
f9ce90ba NB |
499 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
500 | /* style of metadata on the devices. */ | |
501 | int i; | |
aba69144 | 502 | |
82d9eba6 | 503 | for(i=0; superlist[i] && !mis.st; i++) |
421c6c04 JS |
504 | mis.st = superlist[i]-> |
505 | match_metadata_desc(w + 9); | |
82d9eba6 NB |
506 | |
507 | if (!mis.st) | |
421c6c04 JS |
508 | pr_err("metadata format %s unknown, ignored.\n", |
509 | w + 9); | |
dd0781e5 NB |
510 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { |
511 | /* whether to create device special files as needed */ | |
421c6c04 | 512 | mis.autof = parse_auto(w + 5, "auto type", 0); |
dbb44303 N |
513 | } else if (strncasecmp(w, "member=", 7) == 0) { |
514 | /* subarray within a container */ | |
421c6c04 | 515 | mis.member = xstrdup(w + 7); |
dbb44303 | 516 | } else if (strncasecmp(w, "container=", 10) == 0) { |
421c6c04 JS |
517 | /* The container holding this subarray. |
518 | * Either a device name or a uuid */ | |
519 | mis.container = xstrdup(w + 10); | |
52826846 | 520 | } else { |
e7b84f9d | 521 | pr_err("unrecognised word on ARRAY line: %s\n", |
52826846 NB |
522 | w); |
523 | } | |
524 | } | |
b1b12d58 N |
525 | if (mis.uuid_set == 0 && mis.devices == NULL && |
526 | mis.super_minor == UnSet && mis.name[0] == 0 && | |
aa7c284c | 527 | (mis.container == NULL || mis.member == NULL)) |
421c6c04 JS |
528 | pr_err("ARRAY line %s has no identity information.\n", |
529 | mis.devname); | |
52826846 | 530 | else { |
503975b9 | 531 | mi = xmalloc(sizeof(*mi)); |
52826846 | 532 | *mi = mis; |
503975b9 | 533 | mi->devname = mis.devname ? xstrdup(mis.devname) : NULL; |
52826846 NB |
534 | mi->next = NULL; |
535 | *mddevlp = mi; | |
536 | mddevlp = &mi->next; | |
82b27616 | 537 | } |
82b27616 | 538 | } |
e0d19036 NB |
539 | |
540 | static char *alert_email = NULL; | |
541 | void mailline(char *line) | |
542 | { | |
543 | char *w; | |
544 | ||
421c6c04 | 545 | for (w = dl_next(line); w != line; w = dl_next(w)) |
e0d19036 | 546 | if (alert_email == NULL) |
503975b9 | 547 | alert_email = xstrdup(w); |
e0d19036 NB |
548 | } |
549 | ||
4948b8f7 NB |
550 | static char *alert_mail_from = NULL; |
551 | void mailfromline(char *line) | |
552 | { | |
553 | char *w; | |
554 | ||
421c6c04 | 555 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
4948b8f7 | 556 | if (alert_mail_from == NULL) |
503975b9 | 557 | alert_mail_from = xstrdup(w); |
4948b8f7 | 558 | else { |
3d2c4fc7 DW |
559 | char *t = NULL; |
560 | ||
78fbcc10 | 561 | if (xasprintf(&t, "%s %s", alert_mail_from, w) > 0) { |
3d2c4fc7 DW |
562 | free(alert_mail_from); |
563 | alert_mail_from = t; | |
564 | } | |
4948b8f7 NB |
565 | } |
566 | } | |
567 | } | |
568 | ||
e0d19036 NB |
569 | static char *alert_program = NULL; |
570 | void programline(char *line) | |
571 | { | |
572 | char *w; | |
573 | ||
421c6c04 | 574 | for (w = dl_next(line); w != line; w = dl_next(w)) |
e0d19036 | 575 | if (alert_program == NULL) |
503975b9 | 576 | alert_program = xstrdup(w); |
e0d19036 NB |
577 | } |
578 | ||
997aed5d | 579 | static char *home_host = NULL; |
0ac91628 | 580 | static int require_homehost = 1; |
997aed5d NB |
581 | void homehostline(char *line) |
582 | { | |
583 | char *w; | |
584 | ||
421c6c04 | 585 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
7b3b691b | 586 | if (is_devname_ignore(w) == true) |
0ac91628 | 587 | require_homehost = 0; |
0f23aa88 | 588 | else if (home_host == NULL) { |
421c6c04 | 589 | if (strcasecmp(w, "<none>") == 0) |
503975b9 | 590 | home_host = xstrdup(""); |
0f23aa88 | 591 | else |
503975b9 | 592 | home_host = xstrdup(w); |
3c6e95c1 | 593 | } |
997aed5d NB |
594 | } |
595 | } | |
596 | ||
7716570e GJ |
597 | static char *home_cluster = NULL; |
598 | void homeclusterline(char *line) | |
599 | { | |
600 | char *w; | |
601 | ||
421c6c04 | 602 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
7716570e | 603 | if (home_cluster == NULL) { |
421c6c04 | 604 | if (strcasecmp(w, "<none>") == 0) |
7716570e GJ |
605 | home_cluster = xstrdup(""); |
606 | else | |
607 | home_cluster = xstrdup(w); | |
608 | } | |
609 | } | |
610 | } | |
611 | ||
0663137c | 612 | static int monitor_delay; |
613 | void monitordelayline(char *line) | |
614 | { | |
615 | char *w; | |
616 | ||
617 | for (w = dl_next(line); w != line; w = dl_next(w)) { | |
618 | if (monitor_delay == 0) | |
619 | monitor_delay = strtol(w, NULL, 10); | |
620 | } | |
621 | } | |
622 | ||
4e8d9f0a N |
623 | char auto_yes[] = "yes"; |
624 | char auto_no[] = "no"; | |
625 | char auto_homehost[] = "homehost"; | |
626 | ||
627 | static int auto_seen = 0; | |
31015d57 N |
628 | void autoline(char *line) |
629 | { | |
4d0b563b | 630 | char *w; |
4e8d9f0a N |
631 | char *seen; |
632 | int super_cnt; | |
633 | char *dflt = auto_yes; | |
634 | int homehost = 0; | |
635 | int i; | |
4d0b563b | 636 | |
3c6e95c1 | 637 | if (auto_seen) |
31015d57 | 638 | return; |
dbdf3f15 | 639 | auto_seen = 1; |
3c6e95c1 | 640 | |
421c6c04 JS |
641 | /* |
642 | * Parse the 'auto' line creating policy statements for the 'auto' | |
643 | * policy. | |
4e8d9f0a N |
644 | * |
645 | * The default is 'yes' but the 'auto' line might over-ride that. | |
646 | * Words in the line are processed in order with the first | |
647 | * match winning. | |
648 | * word can be: | |
649 | * +version - that version can be assembled | |
650 | * -version - that version cannot be auto-assembled | |
651 | * yes or +all - any other version can be assembled | |
652 | * no or -all - no other version can be assembled. | |
653 | * homehost - any array associated by 'homehost' to this | |
654 | * host can be assembled. | |
655 | * | |
656 | * Thus: | |
657 | * +ddf -0.90 homehost -all | |
658 | * will auto-assemble any ddf array, no 0.90 array, and | |
659 | * any other array (imsm, 1.x) if and only if it is identified | |
660 | * as belonging to this host. | |
661 | * | |
662 | * We translate that to policy by creating 'auto=yes' when we see | |
663 | * a '+version' line, 'auto=no' if we see '-version' before 'homehost', | |
664 | * or 'auto=homehost' if we see '-version' after 'homehost'. | |
b10c663e | 665 | * When we see yes, no, +all or -all we stop and any version that hasn't |
4e8d9f0a N |
666 | * been seen gets an appropriate auto= entry. |
667 | */ | |
4d0b563b | 668 | |
421c6c04 JS |
669 | /* |
670 | * If environment variable MDADM_CONF_AUTO is defined, then | |
2dfb675b N |
671 | * it is prepended to the auto line. This allow a script |
672 | * to easily disable some metadata types. | |
673 | */ | |
674 | w = getenv("MDADM_CONF_AUTO"); | |
675 | if (w && *w) { | |
676 | char *l = xstrdup(w); | |
677 | char *head = line; | |
678 | w = strtok(l, " \t"); | |
679 | while (w) { | |
680 | char *nw = dl_strdup(w); | |
681 | dl_insert(head, nw); | |
682 | head = nw; | |
683 | w = strtok(NULL, " \t"); | |
684 | } | |
685 | free(l); | |
686 | } | |
687 | ||
4e8d9f0a N |
688 | for (super_cnt = 0; superlist[super_cnt]; super_cnt++) |
689 | ; | |
503975b9 | 690 | seen = xcalloc(super_cnt, 1); |
4d0b563b | 691 | |
421c6c04 | 692 | for (w = dl_next(line); w != line; w = dl_next(w)) { |
4e8d9f0a N |
693 | char *val; |
694 | ||
695 | if (strcasecmp(w, "yes") == 0) { | |
696 | dflt = auto_yes; | |
697 | break; | |
698 | } | |
699 | if (strcasecmp(w, "no") == 0) { | |
700 | if (homehost) | |
701 | dflt = auto_homehost; | |
702 | else | |
703 | dflt = auto_no; | |
704 | break; | |
705 | } | |
706 | if (strcasecmp(w, "homehost") == 0) { | |
707 | homehost = 1; | |
708 | continue; | |
709 | } | |
710 | if (w[0] == '+') | |
711 | val = auto_yes; | |
712 | else if (w[0] == '-') { | |
713 | if (homehost) | |
714 | val = auto_homehost; | |
715 | else | |
716 | val = auto_no; | |
717 | } else | |
718 | continue; | |
719 | ||
421c6c04 | 720 | if (strcasecmp(w + 1, "all") == 0) { |
4e8d9f0a N |
721 | dflt = val; |
722 | break; | |
723 | } | |
724 | for (i = 0; superlist[i]; i++) { | |
725 | const char *version = superlist[i]->name; | |
421c6c04 | 726 | if (strcasecmp(w + 1, version) == 0) |
4e8d9f0a N |
727 | break; |
728 | /* 1 matches 1.x, 0 matches 0.90 */ | |
421c6c04 | 729 | if (version[1] == '.' && strlen(w + 1) == 1 && |
4e8d9f0a N |
730 | w[1] == version[0]) |
731 | break; | |
732 | /* 1.anything matches 1.x */ | |
733 | if (strcmp(version, "1.x") == 0 && | |
421c6c04 | 734 | strncmp(w + 1, "1.", 2) == 0) |
4e8d9f0a N |
735 | break; |
736 | } | |
737 | if (superlist[i] == NULL) | |
738 | /* ignore this word */ | |
739 | continue; | |
740 | if (seen[i]) | |
741 | /* already know about this metadata */ | |
742 | continue; | |
421c6c04 JS |
743 | policy_add(rule_policy, pol_auto, val, pol_metadata, |
744 | superlist[i]->name, NULL); | |
4e8d9f0a | 745 | seen[i] = 1; |
4d0b563b | 746 | } |
4e8d9f0a N |
747 | for (i = 0; i < super_cnt; i++) |
748 | if (!seen[i]) | |
421c6c04 JS |
749 | policy_add(rule_policy, pol_auto, dflt, pol_metadata, |
750 | superlist[i]->name, NULL); | |
42de2ac2 TJ |
751 | |
752 | free(seen); | |
31015d57 | 753 | } |
e0d19036 | 754 | |
82b27616 NB |
755 | int loaded = 0; |
756 | ||
8aec876d NB |
757 | static char *conffile = NULL; |
758 | void set_conffile(char *file) | |
759 | { | |
760 | conffile = file; | |
761 | } | |
762 | ||
15af9692 | 763 | void conf_file(FILE *f) |
82b27616 | 764 | { |
52826846 | 765 | char *line; |
421c6c04 | 766 | while ((line = conf_line(f))) { |
52826846 | 767 | switch(match_keyword(line)) { |
8fe9db0f | 768 | case Devices: |
52826846 NB |
769 | devline(line); |
770 | break; | |
8fe9db0f | 771 | case Array: |
52826846 NB |
772 | arrayline(line); |
773 | break; | |
8fe9db0f | 774 | case Mailaddr: |
e0d19036 NB |
775 | mailline(line); |
776 | break; | |
8fe9db0f | 777 | case Mailfrom: |
4948b8f7 NB |
778 | mailfromline(line); |
779 | break; | |
8fe9db0f NB |
780 | case Program: |
781 | programline(line); | |
782 | break; | |
783 | case CreateDev: | |
5bbb4842 NB |
784 | createline(line); |
785 | break; | |
997aed5d NB |
786 | case Homehost: |
787 | homehostline(line); | |
788 | break; | |
7716570e GJ |
789 | case HomeCluster: |
790 | homeclusterline(line); | |
791 | break; | |
31015d57 N |
792 | case AutoMode: |
793 | autoline(line); | |
794 | break; | |
5527fc74 N |
795 | case Policy: |
796 | policyline(line, rule_policy); | |
797 | break; | |
798 | case PartPolicy: | |
799 | policyline(line, rule_part); | |
800 | break; | |
b0681598 MD |
801 | case Sysfs: |
802 | sysfsline(line); | |
803 | break; | |
0663137c | 804 | case MonitorDelay: |
805 | monitordelayline(line); | |
806 | break; | |
52826846 | 807 | default: |
e7b84f9d | 808 | pr_err("Unknown keyword %s\n", line); |
52826846 NB |
809 | } |
810 | free_line(line); | |
82b27616 | 811 | } |
15af9692 N |
812 | } |
813 | ||
343b7e75 N |
814 | struct fname { |
815 | struct fname *next; | |
816 | char name[]; | |
817 | }; | |
818 | ||
819 | void conf_file_or_dir(FILE *f) | |
820 | { | |
821 | struct stat st; | |
822 | DIR *dir; | |
823 | struct dirent *dp; | |
824 | struct fname *list = NULL; | |
825 | ||
826 | fstat(fileno(f), &st); | |
827 | if (S_ISREG(st.st_mode)) | |
828 | conf_file(f); | |
829 | else if (!S_ISDIR(st.st_mode)) | |
830 | return; | |
831 | #if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L | |
832 | dir = fdopendir(fileno(f)); | |
833 | if (!dir) | |
834 | return; | |
835 | while ((dp = readdir(dir)) != NULL) { | |
836 | int l; | |
837 | struct fname *fn, **p; | |
838 | if (dp->d_ino == 0) | |
839 | continue; | |
840 | if (dp->d_name[0] == '.') | |
841 | continue; | |
842 | l = strlen(dp->d_name); | |
421c6c04 | 843 | if (l < 6 || strcmp(dp->d_name + l - 5, ".conf") != 0) |
343b7e75 | 844 | continue; |
421c6c04 | 845 | fn = xmalloc(sizeof(*fn) + l + 1); |
343b7e75 N |
846 | strcpy(fn->name, dp->d_name); |
847 | for (p = &list; | |
848 | *p && strcmp((*p)->name, fn->name) < 0; | |
849 | p = & (*p)->next) | |
850 | ; | |
851 | fn->next = *p; | |
852 | *p = fn; | |
853 | } | |
854 | while (list) { | |
855 | int fd; | |
856 | FILE *f2; | |
857 | struct fname *fn = list; | |
858 | list = list->next; | |
859 | fd = openat(fileno(f), fn->name, O_RDONLY); | |
860 | free(fn); | |
861 | if (fd < 0) | |
862 | continue; | |
863 | f2 = fdopen(fd, "r"); | |
864 | if (!f2) { | |
865 | close(fd); | |
866 | continue; | |
867 | } | |
868 | conf_file(f2); | |
869 | fclose(f2); | |
870 | } | |
871 | closedir(dir); | |
872 | #endif | |
873 | } | |
874 | ||
15af9692 N |
875 | void load_conffile(void) |
876 | { | |
877 | FILE *f; | |
9dc70cbc | 878 | char *confdir = NULL; |
2dfb675b | 879 | char *head; |
15af9692 | 880 | |
824e5727 N |
881 | if (loaded) |
882 | return; | |
9dc70cbc | 883 | if (conffile == NULL) { |
15af9692 | 884 | conffile = DefaultConfFile; |
9dc70cbc N |
885 | confdir = DefaultConfDir; |
886 | } | |
15af9692 | 887 | |
421c6c04 | 888 | if (strcmp(conffile, "partitions") == 0) { |
15af9692 N |
889 | char *list = dl_strdup("DEV"); |
890 | dl_init(list); | |
891 | dl_add(list, dl_strdup("partitions")); | |
892 | devline(list); | |
893 | free_line(list); | |
824e5727 N |
894 | } else if (strcmp(conffile, "none") != 0) { |
895 | f = fopen(conffile, "r"); | |
896 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. | |
897 | * To allow Debian users to compile from clean source and still | |
898 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
899 | * if /etc/mdadm.conf doesn't exist | |
900 | */ | |
421c6c04 | 901 | if (f == NULL && conffile == DefaultConfFile) { |
824e5727 N |
902 | f = fopen(DefaultAltConfFile, "r"); |
903 | if (f) { | |
904 | conffile = DefaultAltConfFile; | |
905 | confdir = DefaultAltConfDir; | |
906 | } | |
9dc70cbc | 907 | } |
9dc70cbc | 908 | if (f) { |
9dc70cbc N |
909 | conf_file_or_dir(f); |
910 | fclose(f); | |
911 | } | |
824e5727 N |
912 | if (confdir) { |
913 | f = fopen(confdir, "r"); | |
914 | if (f) { | |
915 | conf_file_or_dir(f); | |
916 | fclose(f); | |
917 | } | |
918 | } | |
15af9692 | 919 | } |
2dfb675b N |
920 | /* If there was no AUTO line, process an empty line |
921 | * now so that the MDADM_CONF_AUTO env var gets processed. | |
922 | */ | |
923 | head = dl_strdup("AUTO"); | |
924 | dl_init(head); | |
925 | autoline(head); | |
926 | free_line(head); | |
927 | ||
824e5727 | 928 | loaded = 1; |
82b27616 NB |
929 | } |
930 | ||
8aec876d | 931 | char *conf_get_mailaddr(void) |
e0d19036 | 932 | { |
8aec876d | 933 | load_conffile(); |
e0d19036 NB |
934 | return alert_email; |
935 | } | |
936 | ||
8aec876d | 937 | char *conf_get_mailfrom(void) |
4948b8f7 | 938 | { |
8aec876d | 939 | load_conffile(); |
4948b8f7 NB |
940 | return alert_mail_from; |
941 | } | |
942 | ||
8aec876d | 943 | char *conf_get_program(void) |
e0d19036 | 944 | { |
8aec876d | 945 | load_conffile(); |
e0d19036 NB |
946 | return alert_program; |
947 | } | |
948 | ||
0ac91628 | 949 | char *conf_get_homehost(int *require_homehostp) |
997aed5d | 950 | { |
8aec876d | 951 | load_conffile(); |
0ac91628 N |
952 | if (require_homehostp) |
953 | *require_homehostp = require_homehost; | |
997aed5d NB |
954 | return home_host; |
955 | } | |
956 | ||
7716570e GJ |
957 | char *conf_get_homecluster(void) |
958 | { | |
959 | load_conffile(); | |
960 | return home_cluster; | |
961 | } | |
962 | ||
0663137c | 963 | int conf_get_monitor_delay(void) |
964 | { | |
965 | load_conffile(); | |
966 | return monitor_delay; | |
967 | } | |
968 | ||
8aec876d | 969 | struct createinfo *conf_get_create_info(void) |
5bbb4842 | 970 | { |
8aec876d | 971 | load_conffile(); |
5bbb4842 NB |
972 | return &createinfo; |
973 | } | |
82b27616 | 974 | |
fa56eddb | 975 | struct mddev_ident *conf_get_ident(char *dev) |
64c4757e | 976 | { |
fa56eddb | 977 | struct mddev_ident *rv; |
8aec876d | 978 | load_conffile(); |
52826846 | 979 | rv = mddevlist; |
421c6c04 JS |
980 | while (dev && rv && (rv->devname == NULL || |
981 | !devname_matches(dev, rv->devname))) | |
52826846 NB |
982 | rv = rv->next; |
983 | return rv; | |
64c4757e NB |
984 | } |
985 | ||
a655e550 | 986 | static void append_dlist(struct mddev_dev **dlp, struct mddev_dev *list) |
f64165f7 DW |
987 | { |
988 | while (*dlp) | |
989 | dlp = &(*dlp)->next; | |
990 | *dlp = list; | |
991 | } | |
992 | ||
a655e550 | 993 | struct mddev_dev *conf_get_devs() |
64c4757e | 994 | { |
52826846 NB |
995 | glob_t globbuf; |
996 | struct conf_dev *cd; | |
997 | int flags = 0; | |
a655e550 | 998 | static struct mddev_dev *dlist = NULL; |
98c6faba | 999 | unsigned int i; |
52826846 NB |
1000 | |
1001 | while (dlist) { | |
a655e550 | 1002 | struct mddev_dev *t = dlist; |
52826846 NB |
1003 | dlist = dlist->next; |
1004 | free(t->devname); | |
1005 | free(t); | |
1006 | } | |
aba69144 | 1007 | |
8aec876d | 1008 | load_conffile(); |
a99d6b66 | 1009 | |
f8f84cd5 DW |
1010 | if (cdevlist == NULL) { |
1011 | /* default to 'partitions' and 'containers' */ | |
a99d6b66 | 1012 | dlist = load_partitions(); |
f8f84cd5 DW |
1013 | append_dlist(&dlist, load_containers()); |
1014 | } | |
a99d6b66 | 1015 | |
421c6c04 JS |
1016 | for (cd = cdevlist; cd; cd = cd->next) { |
1017 | if (strcasecmp(cd->name, "partitions") == 0) | |
f64165f7 | 1018 | append_dlist(&dlist, load_partitions()); |
421c6c04 | 1019 | else if (strcasecmp(cd->name, "containers") == 0) |
f64165f7 | 1020 | append_dlist(&dlist, load_containers()); |
057bd352 NB |
1021 | else { |
1022 | glob(cd->name, flags, NULL, &globbuf); | |
1023 | flags |= GLOB_APPEND; | |
1024 | } | |
52826846 | 1025 | } |
e0d19036 | 1026 | if (flags & GLOB_APPEND) { |
421c6c04 | 1027 | for (i = 0; i < globbuf.gl_pathc; i++) { |
6a674388 JS |
1028 | struct mddev_dev *t; |
1029 | t = xcalloc(1, sizeof(*t)); | |
503975b9 | 1030 | t->devname = xstrdup(globbuf.gl_pathv[i]); |
e0d19036 NB |
1031 | t->next = dlist; |
1032 | dlist = t; | |
82b27616 | 1033 | /* printf("one dev is %s\n", t->devname);*/ |
e0d19036 NB |
1034 | } |
1035 | globfree(&globbuf); | |
52826846 | 1036 | } |
82b27616 | 1037 | |
52826846 | 1038 | return dlist; |
64c4757e NB |
1039 | } |
1040 | ||
8382f19b NB |
1041 | int conf_test_dev(char *devname) |
1042 | { | |
1043 | struct conf_dev *cd; | |
1044 | if (cdevlist == NULL) | |
1045 | /* allow anything by default */ | |
1046 | return 1; | |
421c6c04 | 1047 | for (cd = cdevlist; cd; cd = cd->next) { |
8382f19b NB |
1048 | if (strcasecmp(cd->name, "partitions") == 0) |
1049 | return 1; | |
1050 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
1051 | return 1; | |
1052 | } | |
1053 | return 0; | |
1054 | } | |
1055 | ||
4e8d9f0a | 1056 | int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost) |
31015d57 | 1057 | { |
4e8d9f0a N |
1058 | /* If anyone said 'yes', that sticks. |
1059 | * else if homehost applies, use that | |
1060 | * else if there is a 'no', say 'no'. | |
1061 | * else 'yes'. | |
31015d57 | 1062 | */ |
4e8d9f0a | 1063 | struct dev_policy *p; |
421c6c04 | 1064 | int no = 0, found_homehost = 0; |
31015d57 | 1065 | load_conffile(); |
4e8d9f0a N |
1066 | |
1067 | pol = pol_find(pol, pol_auto); | |
1068 | pol_for_each(p, pol, version) { | |
1069 | if (strcmp(p->value, "yes") == 0) | |
31015d57 | 1070 | return 1; |
b10c663e N |
1071 | if (strcmp(p->value, "homehost") == 0) |
1072 | found_homehost = 1; | |
4e8d9f0a N |
1073 | if (strcmp(p->value, "no") == 0) |
1074 | no = 1; | |
31015d57 | 1075 | } |
b10c663e | 1076 | if (is_homehost && found_homehost) |
4e8d9f0a N |
1077 | return 1; |
1078 | if (no) | |
1079 | return 0; | |
31015d57 N |
1080 | return 1; |
1081 | } | |
8382f19b | 1082 | |
52826846 NB |
1083 | int match_oneof(char *devices, char *devname) |
1084 | { | |
5d500228 N |
1085 | /* check if one of the comma separated patterns in devices |
1086 | * matches devname | |
1087 | */ | |
1088 | ||
1089 | while (devices && *devices) { | |
1090 | char patn[1024]; | |
1091 | char *p = devices; | |
1092 | devices = strchr(devices, ','); | |
1093 | if (!devices) | |
1094 | devices = p + strlen(p); | |
1095 | if (devices-p < 1024) { | |
421c6c04 | 1096 | strncpy(patn, p, devices - p); |
5d500228 | 1097 | patn[devices-p] = 0; |
421c6c04 | 1098 | if (fnmatch(patn, devname, FNM_PATHNAME) == 0) |
5d500228 N |
1099 | return 1; |
1100 | } | |
1101 | if (*devices == ',') | |
1102 | devices++; | |
52826846 | 1103 | } |
5d500228 | 1104 | return 0; |
52826846 | 1105 | } |
0ac91628 N |
1106 | |
1107 | int devname_matches(char *name, char *match) | |
1108 | { | |
1109 | /* See if the given array name matches the | |
1110 | * given match from config file. | |
1111 | * | |
1112 | * First strip and /dev/md/ or /dev/, then | |
1113 | * see if there might be a numeric match of | |
1114 | * mdNN with NN | |
1115 | * then just strcmp | |
1116 | */ | |
b9ce7ab0 MT |
1117 | if (strncmp(name, DEV_MD_DIR, DEV_MD_DIR_LEN) == 0) |
1118 | name += DEV_MD_DIR_LEN; | |
0ac91628 N |
1119 | else if (strncmp(name, "/dev/", 5) == 0) |
1120 | name += 5; | |
1121 | ||
b9ce7ab0 MT |
1122 | if (strncmp(match, DEV_MD_DIR, DEV_MD_DIR_LEN) == 0) |
1123 | match += DEV_MD_DIR_LEN; | |
0ac91628 N |
1124 | else if (strncmp(match, "/dev/", 5) == 0) |
1125 | match += 5; | |
1126 | ||
421c6c04 | 1127 | if (strncmp(name, "md", 2) == 0 && isdigit(name[2])) |
0ac91628 | 1128 | name += 2; |
421c6c04 | 1129 | if (strncmp(match, "md", 2) == 0 && isdigit(match[2])) |
0ac91628 N |
1130 | match += 2; |
1131 | ||
1132 | return (strcmp(name, match) == 0); | |
1133 | } | |
1134 | ||
1135 | int conf_name_is_free(char *name) | |
1136 | { | |
4dd2df09 | 1137 | /* Check if this name is already taken by an ARRAY entry in |
0ac91628 N |
1138 | * the config file. |
1139 | * It can be taken either by a match on devname, name, or | |
1140 | * even super-minor. | |
1141 | */ | |
fa56eddb | 1142 | struct mddev_ident *dev; |
0ac91628 N |
1143 | |
1144 | load_conffile(); | |
1145 | for (dev = mddevlist; dev; dev = dev->next) { | |
1146 | char nbuf[100]; | |
1147 | if (dev->devname && devname_matches(name, dev->devname)) | |
1148 | return 0; | |
1149 | if (dev->name[0] && devname_matches(name, dev->name)) | |
1150 | return 0; | |
1151 | sprintf(nbuf, "%d", dev->super_minor); | |
421c6c04 | 1152 | if (dev->super_minor != UnSet && devname_matches(name, nbuf)) |
0ac91628 N |
1153 | return 0; |
1154 | } | |
1155 | return 1; | |
1156 | } | |
360b4636 | 1157 | |
2244d1a9 N |
1158 | struct mddev_ident *conf_match(struct supertype *st, |
1159 | struct mdinfo *info, | |
1160 | char *devname, | |
1161 | int verbose, int *rvp) | |
360b4636 | 1162 | { |
fa56eddb | 1163 | struct mddev_ident *array_list, *match; |
360b4636 N |
1164 | array_list = conf_get_ident(NULL); |
1165 | match = NULL; | |
1166 | for (; array_list; array_list = array_list->next) { | |
1167 | if (array_list->uuid_set && | |
b831b299 JS |
1168 | same_uuid(array_list->uuid, info->uuid, |
1169 | st->ss->swapuuid) == 0) { | |
360b4636 | 1170 | if (verbose >= 2 && array_list->devname) |
e7b84f9d N |
1171 | pr_err("UUID differs from %s.\n", |
1172 | array_list->devname); | |
360b4636 N |
1173 | continue; |
1174 | } | |
1175 | if (array_list->name[0] && | |
1176 | strcasecmp(array_list->name, info->name) != 0) { | |
1177 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1178 | pr_err("Name differs from %s.\n", |
1179 | array_list->devname); | |
360b4636 N |
1180 | continue; |
1181 | } | |
9f1b0f0f | 1182 | if (array_list->devices && devname && |
360b4636 N |
1183 | !match_oneof(array_list->devices, devname)) { |
1184 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1185 | pr_err("Not a listed device for %s.\n", |
1186 | array_list->devname); | |
360b4636 N |
1187 | continue; |
1188 | } | |
1189 | if (array_list->super_minor != UnSet && | |
1190 | array_list->super_minor != info->array.md_minor) { | |
1191 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1192 | pr_err("Different super-minor to %s.\n", |
1193 | array_list->devname); | |
360b4636 N |
1194 | continue; |
1195 | } | |
421c6c04 JS |
1196 | if (!array_list->uuid_set && !array_list->name[0] && |
1197 | !array_list->devices && array_list->super_minor == UnSet) { | |
360b4636 | 1198 | if (verbose >= 2 && array_list->devname) |
7a862a02 | 1199 | pr_err("%s doesn't have any identifying information.\n", |
e7b84f9d | 1200 | array_list->devname); |
360b4636 N |
1201 | continue; |
1202 | } | |
1203 | /* FIXME, should I check raid_disks and level too?? */ | |
1204 | ||
1205 | if (match) { | |
1206 | if (verbose >= 0) { | |
1207 | if (match->devname && array_list->devname) | |
7a862a02 | 1208 | pr_err("we match both %s and %s - cannot decide which to use.\n", |
e7b84f9d N |
1209 | match->devname, |
1210 | array_list->devname); | |
360b4636 | 1211 | else |
7a862a02 | 1212 | pr_err("multiple lines in mdadm.conf match\n"); |
360b4636 | 1213 | } |
2244d1a9 N |
1214 | if (rvp) |
1215 | *rvp = 2; | |
1216 | match = NULL; | |
1217 | break; | |
360b4636 N |
1218 | } |
1219 | match = array_list; | |
1220 | } | |
1221 | return match; | |
1222 | } | |
7c336758 LO |
1223 | |
1224 | int conf_verify_devnames(struct mddev_ident *array_list) | |
1225 | { | |
1226 | struct mddev_ident *a1, *a2; | |
1227 | ||
1228 | for (a1 = array_list; a1; a1 = a1->next) { | |
1229 | if (!a1->devname) | |
1230 | continue; | |
13f2dd6b N |
1231 | if (strcmp(a1->devname, "<ignore>") == 0) |
1232 | continue; | |
7c336758 LO |
1233 | for (a2 = a1->next; a2; a2 = a2->next) { |
1234 | if (!a2->devname) | |
1235 | continue; | |
1236 | if (strcmp(a1->devname, a2->devname) != 0) | |
1237 | continue; | |
1238 | ||
1239 | if (a1->uuid_set && a2->uuid_set) { | |
1240 | char nbuf[64]; | |
1241 | __fname_from_uuid(a1->uuid, 0, nbuf, ':'); | |
e7b84f9d N |
1242 | pr_err("Devices %s and ", |
1243 | nbuf); | |
7c336758 LO |
1244 | __fname_from_uuid(a2->uuid, 0, nbuf, ':'); |
1245 | fprintf(stderr, | |
1246 | "%s have the same name: %s\n", | |
1247 | nbuf, a1->devname); | |
1248 | } else | |
7a862a02 | 1249 | pr_err("Device %s given twice in config file\n", a1->devname); |
7c336758 LO |
1250 | return 1; |
1251 | } | |
1252 | } | |
1253 | ||
1254 | return 0; | |
1255 | } |