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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; | |
503975b9 | 147 | d = xmalloc(sizeof(*d)); |
5e73b024 | 148 | memset(d, 0, sizeof(*d)); |
503975b9 | 149 | d->devname = xstrdup(name); |
8b0dabea NB |
150 | d->next = rv; |
151 | rv = d; | |
5787fa49 | 152 | } |
dd0781e5 | 153 | fclose(f); |
057bd352 | 154 | return rv; |
5787fa49 | 155 | } |
82b27616 | 156 | |
a655e550 | 157 | struct mddev_dev *load_containers(void) |
f64165f7 | 158 | { |
b4924f46 | 159 | struct mdstat_ent *mdstat = mdstat_read(0, 0); |
f64165f7 | 160 | struct mdstat_ent *ent; |
a655e550 N |
161 | struct mddev_dev *d; |
162 | struct mddev_dev *rv = NULL; | |
eb2306f8 | 163 | struct map_ent *map = NULL, *me; |
f64165f7 DW |
164 | |
165 | if (!mdstat) | |
166 | return NULL; | |
167 | ||
168 | for (ent = mdstat; ent; ent = ent->next) | |
169 | if (ent->metadata_version && | |
170 | strncmp(ent->metadata_version, "external:", 9) == 0 && | |
171 | !is_subarray(&ent->metadata_version[9])) { | |
503975b9 | 172 | d = xmalloc(sizeof(*d)); |
5e73b024 | 173 | memset(d, 0, sizeof(*d)); |
9581efb1 | 174 | me = map_by_devnm(&map, ent->devnm); |
eb2306f8 N |
175 | if (me) |
176 | d->devname = xstrdup(me->path); | |
9581efb1 | 177 | else if (asprintf(&d->devname, "/dev/%s", ent->devnm) < 0) { |
f64165f7 DW |
178 | free(d); |
179 | continue; | |
180 | } | |
181 | d->next = rv; | |
f64165f7 DW |
182 | rv = d; |
183 | } | |
184 | free_mdstat(mdstat); | |
eb2306f8 | 185 | map_free(map); |
f64165f7 DW |
186 | |
187 | return rv; | |
188 | } | |
189 | ||
5bbb4842 | 190 | struct createinfo createinfo = { |
75723446 | 191 | .autof = 2, /* by default, create devices with standard names */ |
38098016 | 192 | .symlinks = 1, |
eca944fa | 193 | .names = 0, /* By default, stick with numbered md devices. */ |
e2efe9e7 | 194 | .bblist = 1, /* Use a bad block list by default */ |
5bbb4842 NB |
195 | #ifdef DEBIAN |
196 | .gid = 6, /* disk */ | |
197 | .mode = 0660, | |
198 | #else | |
199 | .mode = 0600, | |
200 | #endif | |
201 | }; | |
202 | ||
f1ae21c4 | 203 | int parse_auto(char *str, char *msg, int config) |
5bbb4842 NB |
204 | { |
205 | int autof; | |
206 | if (str == NULL || *str == 0) | |
f1ae21c4 | 207 | autof = 2; |
5bbb4842 | 208 | else if (strcasecmp(str,"no")==0) |
f1ae21c4 | 209 | autof = 1; |
5bbb4842 | 210 | else if (strcasecmp(str,"yes")==0) |
f1ae21c4 | 211 | autof = 2; |
5bbb4842 | 212 | else if (strcasecmp(str,"md")==0) |
f1ae21c4 | 213 | autof = config?5:3; |
5bbb4842 NB |
214 | else { |
215 | /* There might be digits, and maybe a hypen, at the end */ | |
216 | char *e = str + strlen(str); | |
217 | int num = 4; | |
218 | int len; | |
219 | while (e > str && isdigit(e[-1])) | |
220 | e--; | |
221 | if (*e) { | |
222 | num = atoi(e); | |
223 | if (num <= 0) num = 1; | |
224 | } | |
225 | if (e > str && e[-1] == '-') | |
226 | e--; | |
227 | len = e - str; | |
f1ae21c4 NB |
228 | if ((len == 2 && strncasecmp(str,"md",2)==0)) { |
229 | autof = config ? 5 : 3; | |
6ba83b5f NB |
230 | } else if ((len == 3 && strncasecmp(str,"yes",3)==0)) { |
231 | autof = 2; | |
f1ae21c4 NB |
232 | } else if ((len == 3 && strncasecmp(str,"mdp",3)==0)) { |
233 | autof = config ? 6 : 4; | |
234 | } else if ((len == 1 && strncasecmp(str,"p",1)==0) || | |
235 | (len >= 4 && strncasecmp(str,"part",4)==0)) { | |
236 | autof = 6; | |
237 | } else { | |
e7b84f9d | 238 | pr_err("%s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n" |
5bbb4842 NB |
239 | " optionally followed by a number.\n", |
240 | msg, str); | |
241 | exit(2); | |
242 | } | |
f1ae21c4 | 243 | autof |= num << 3; |
5bbb4842 NB |
244 | } |
245 | return autof; | |
246 | } | |
f1ae21c4 | 247 | |
5bbb4842 NB |
248 | static void createline(char *line) |
249 | { | |
250 | char *w; | |
251 | char *ep; | |
252 | ||
253 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
254 | if (strncasecmp(w, "auto=", 5) == 0) | |
f1ae21c4 | 255 | createinfo.autof = parse_auto(w+5, "auto=", 1); |
5bbb4842 NB |
256 | else if (strncasecmp(w, "owner=", 6) == 0) { |
257 | if (w[6] == 0) { | |
e7b84f9d | 258 | pr_err("missing owner name\n"); |
5bbb4842 NB |
259 | continue; |
260 | } | |
261 | createinfo.uid = strtoul(w+6, &ep, 10); | |
262 | if (*ep != 0) { | |
5bbb4842 NB |
263 | struct passwd *pw; |
264 | /* must be a name */ | |
265 | pw = getpwnam(w+6); | |
266 | if (pw) | |
267 | createinfo.uid = pw->pw_uid; | |
268 | else | |
e7b84f9d | 269 | pr_err("CREATE user %s not found\n", w+6); |
5bbb4842 NB |
270 | } |
271 | } else if (strncasecmp(w, "group=", 6) == 0) { | |
272 | if (w[6] == 0) { | |
e7b84f9d | 273 | pr_err("missing group name\n"); |
5bbb4842 NB |
274 | continue; |
275 | } | |
276 | createinfo.gid = strtoul(w+6, &ep, 10); | |
277 | if (*ep != 0) { | |
5bbb4842 NB |
278 | struct group *gr; |
279 | /* must be a name */ | |
280 | gr = getgrnam(w+6); | |
281 | if (gr) | |
282 | createinfo.gid = gr->gr_gid; | |
283 | else | |
e7b84f9d | 284 | pr_err("CREATE group %s not found\n", w+6); |
5bbb4842 NB |
285 | } |
286 | } else if (strncasecmp(w, "mode=", 5) == 0) { | |
287 | if (w[5] == 0) { | |
e7b84f9d | 288 | pr_err("missing CREATE mode\n"); |
5bbb4842 NB |
289 | continue; |
290 | } | |
291 | createinfo.mode = strtoul(w+5, &ep, 8); | |
292 | if (*ep != 0) { | |
293 | createinfo.mode = 0600; | |
e7b84f9d | 294 | pr_err("unrecognised CREATE mode %s\n", |
5bbb4842 NB |
295 | w+5); |
296 | } | |
058574b1 NB |
297 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
298 | /* style of metadata to use by default */ | |
299 | int i; | |
300 | for (i=0; superlist[i] && !createinfo.supertype; i++) | |
301 | createinfo.supertype = | |
302 | superlist[i]->match_metadata_desc(w+9); | |
303 | if (!createinfo.supertype) | |
e7b84f9d | 304 | pr_err("metadata format %s unknown, ignoring\n", |
058574b1 | 305 | w+9); |
38098016 NB |
306 | } else if (strncasecmp(w, "symlinks=yes", 12) == 0) |
307 | createinfo.symlinks = 1; | |
308 | else if (strncasecmp(w, "symlinks=no", 11) == 0) | |
309 | createinfo.symlinks = 0; | |
eca944fa N |
310 | else if (strncasecmp(w, "names=yes", 12) == 0) |
311 | createinfo.names = 1; | |
312 | else if (strncasecmp(w, "names=no", 11) == 0) | |
313 | createinfo.names = 0; | |
e2efe9e7 N |
314 | else if (strncasecmp(w, "bbl=no", 11) == 0) |
315 | createinfo.bblist = 0; | |
316 | else if (strncasecmp(w, "bbl=yes", 11) == 0) | |
317 | createinfo.bblist = 1; | |
38098016 | 318 | else { |
e7b84f9d | 319 | pr_err("unrecognised word on CREATE line: %s\n", |
5bbb4842 NB |
320 | w); |
321 | } | |
322 | } | |
323 | } | |
82b27616 | 324 | |
aba69144 | 325 | void devline(char *line) |
82b27616 | 326 | { |
52826846 NB |
327 | char *w; |
328 | struct conf_dev *cd; | |
329 | ||
330 | for (w=dl_next(line); w != line; w=dl_next(w)) { | |
f64165f7 DW |
331 | if (w[0] == '/' || strcasecmp(w, "partitions") == 0 || |
332 | strcasecmp(w, "containers") == 0) { | |
503975b9 N |
333 | cd = xmalloc(sizeof(*cd)); |
334 | cd->name = xstrdup(w); | |
52826846 NB |
335 | cd->next = cdevlist; |
336 | cdevlist = cd; | |
337 | } else { | |
e7b84f9d | 338 | pr_err("unreconised word on DEVICE line: %s\n", |
52826846 NB |
339 | w); |
340 | } | |
82b27616 | 341 | } |
82b27616 NB |
342 | } |
343 | ||
fa56eddb N |
344 | struct mddev_ident *mddevlist = NULL; |
345 | struct mddev_ident **mddevlp = &mddevlist; | |
82b27616 | 346 | |
db2d001c N |
347 | static int is_number(char *w) |
348 | { | |
349 | /* check if there are 1 or more digits and nothing else */ | |
350 | int digits = 0; | |
351 | while (*w && isdigit(*w)) { | |
352 | digits++; | |
353 | w++; | |
354 | } | |
355 | return (digits && ! *w); | |
356 | } | |
357 | ||
82b27616 NB |
358 | void arrayline(char *line) |
359 | { | |
52826846 NB |
360 | char *w; |
361 | ||
fa56eddb N |
362 | struct mddev_ident mis; |
363 | struct mddev_ident *mi; | |
52826846 NB |
364 | |
365 | mis.uuid_set = 0; | |
98c6faba NB |
366 | mis.super_minor = UnSet; |
367 | mis.level = UnSet; | |
368 | mis.raid_disks = UnSet; | |
4ccdb956 | 369 | mis.spare_disks = 0; |
52826846 NB |
370 | mis.devices = NULL; |
371 | mis.devname = NULL; | |
e0d19036 | 372 | mis.spare_group = NULL; |
dd0781e5 | 373 | mis.autof = 0; |
92919398 | 374 | mis.next = NULL; |
f277ce36 NB |
375 | mis.st = NULL; |
376 | mis.bitmap_fd = -1; | |
7ef02d01 | 377 | mis.bitmap_file = NULL; |
947fd4dd | 378 | mis.name[0] = 0; |
71d60c48 DW |
379 | mis.container = NULL; |
380 | mis.member = NULL; | |
52826846 NB |
381 | |
382 | for (w=dl_next(line); w!=line; w=dl_next(w)) { | |
db2d001c N |
383 | if (w[0] == '/' || strchr(w, '=') == NULL) { |
384 | /* This names the device, or is '<ignore>'. | |
385 | * The rules match those in create_mddev. | |
386 | * 'w' must be: | |
387 | * /dev/md/{anything} | |
388 | * /dev/mdNN | |
389 | * /dev/md_dNN | |
390 | * <ignore> | |
391 | * or anything that doesn't start '/' or '<' | |
392 | */ | |
393 | if (strcasecmp(w, "<ignore>") == 0 || | |
394 | strncmp(w, "/dev/md/", 8) == 0 || | |
395 | (w[0] != '/' && w[0] != '<') || | |
1011e834 | 396 | (strncmp(w, "/dev/md", 7) == 0 && |
db2d001c N |
397 | is_number(w+7)) || |
398 | (strncmp(w, "/dev/md_d", 9) == 0 && | |
399 | is_number(w+9)) | |
400 | ) { | |
401 | /* This is acceptable */; | |
402 | if (mis.devname) | |
7a862a02 | 403 | pr_err("only give one device per ARRAY line: %s and %s\n", |
db2d001c N |
404 | mis.devname, w); |
405 | else | |
406 | mis.devname = w; | |
407 | }else { | |
7a862a02 | 408 | pr_err("%s is an invalid name for an md device - ignored.\n", w); |
db2d001c | 409 | } |
52826846 NB |
410 | } else if (strncasecmp(w, "uuid=", 5)==0 ) { |
411 | if (mis.uuid_set) | |
e7b84f9d | 412 | pr_err("only specify uuid once, %s ignored.\n", |
52826846 NB |
413 | w); |
414 | else { | |
415 | if (parse_uuid(w+5, mis.uuid)) | |
416 | mis.uuid_set = 1; | |
417 | else | |
e7b84f9d | 418 | pr_err("bad uuid: %s\n", w); |
52826846 NB |
419 | } |
420 | } else if (strncasecmp(w, "super-minor=", 12)==0 ) { | |
f277ce36 | 421 | if (mis.super_minor != UnSet) |
e7b84f9d | 422 | pr_err("only specify super-minor once, %s ignored.\n", |
52826846 NB |
423 | w); |
424 | else { | |
425 | char *endptr; | |
f21e18ca N |
426 | int minor = strtol(w+12, &endptr, 10); |
427 | ||
428 | if (w[12]==0 || endptr[0]!=0 || minor < 0) | |
e7b84f9d | 429 | pr_err("invalid super-minor number: %s\n", |
52826846 | 430 | w); |
f21e18ca N |
431 | else |
432 | mis.super_minor = minor; | |
52826846 | 433 | } |
947fd4dd NB |
434 | } else if (strncasecmp(w, "name=", 5)==0) { |
435 | if (mis.name[0]) | |
e7b84f9d | 436 | pr_err("only specify name once, %s ignored.\n", |
947fd4dd NB |
437 | w); |
438 | else if (strlen(w+5) > 32) | |
e7b84f9d | 439 | pr_err("name too long, ignoring %s\n", w); |
947fd4dd NB |
440 | else |
441 | strcpy(mis.name, w+5); | |
442 | ||
7ef02d01 NB |
443 | } else if (strncasecmp(w, "bitmap=", 7) == 0) { |
444 | if (mis.bitmap_file) | |
e7b84f9d | 445 | pr_err("only specify bitmap file once. %s ignored\n", |
7ef02d01 NB |
446 | w); |
447 | else | |
503975b9 | 448 | mis.bitmap_file = xstrdup(w+7); |
7ef02d01 | 449 | |
52826846 NB |
450 | } else if (strncasecmp(w, "devices=", 8 ) == 0 ) { |
451 | if (mis.devices) | |
e7b84f9d | 452 | pr_err("only specify devices once (use a comma separated list). %s ignored\n", |
52826846 NB |
453 | w); |
454 | else | |
503975b9 | 455 | mis.devices = xstrdup(w+8); |
52826846 NB |
456 | } else if (strncasecmp(w, "spare-group=", 12) == 0 ) { |
457 | if (mis.spare_group) | |
e7b84f9d | 458 | pr_err("only specify one spare group per array. %s ignored.\n", |
52826846 NB |
459 | w); |
460 | else | |
503975b9 | 461 | mis.spare_group = xstrdup(w+12); |
cd29a5c8 NB |
462 | } else if (strncasecmp(w, "level=", 6) == 0 ) { |
463 | /* this is mainly for compatability with --brief output */ | |
464 | mis.level = map_name(pers, w+6); | |
465 | } else if (strncasecmp(w, "disks=", 6) == 0 ) { | |
466 | /* again, for compat */ | |
feb716e9 | 467 | mis.raid_disks = atoi(w+6); |
b83d95f3 NB |
468 | } else if (strncasecmp(w, "num-devices=", 12) == 0 ) { |
469 | /* again, for compat */ | |
feb716e9 NB |
470 | mis.raid_disks = atoi(w+12); |
471 | } else if (strncasecmp(w, "spares=", 7) == 0 ) { | |
472 | /* for warning if not all spares present */ | |
473 | mis.spare_disks = atoi(w+7); | |
f9ce90ba NB |
474 | } else if (strncasecmp(w, "metadata=", 9) == 0) { |
475 | /* style of metadata on the devices. */ | |
476 | int i; | |
aba69144 | 477 | |
82d9eba6 NB |
478 | for(i=0; superlist[i] && !mis.st; i++) |
479 | mis.st = superlist[i]->match_metadata_desc(w+9); | |
480 | ||
481 | if (!mis.st) | |
e7b84f9d | 482 | pr_err("metadata format %s unknown, ignored.\n", w+9); |
dd0781e5 NB |
483 | } else if (strncasecmp(w, "auto=", 5) == 0 ) { |
484 | /* whether to create device special files as needed */ | |
f1ae21c4 | 485 | mis.autof = parse_auto(w+5, "auto type", 0); |
dbb44303 N |
486 | } else if (strncasecmp(w, "member=", 7) == 0) { |
487 | /* subarray within a container */ | |
503975b9 | 488 | mis.member = xstrdup(w+7); |
dbb44303 | 489 | } else if (strncasecmp(w, "container=", 10) == 0) { |
1771a6e2 N |
490 | /* the container holding this subarray. Either a device name |
491 | * or a uuid */ | |
503975b9 | 492 | mis.container = xstrdup(w+10); |
52826846 | 493 | } else { |
e7b84f9d | 494 | pr_err("unrecognised word on ARRAY line: %s\n", |
52826846 NB |
495 | w); |
496 | } | |
497 | } | |
b1b12d58 N |
498 | if (mis.uuid_set == 0 && mis.devices == NULL && |
499 | mis.super_minor == UnSet && mis.name[0] == 0 && | |
aa7c284c | 500 | (mis.container == NULL || mis.member == NULL)) |
e7b84f9d | 501 | pr_err("ARRAY line %s has no identity information.\n", mis.devname); |
52826846 | 502 | else { |
503975b9 | 503 | mi = xmalloc(sizeof(*mi)); |
52826846 | 504 | *mi = mis; |
503975b9 | 505 | mi->devname = mis.devname ? xstrdup(mis.devname) : NULL; |
52826846 NB |
506 | mi->next = NULL; |
507 | *mddevlp = mi; | |
508 | mddevlp = &mi->next; | |
82b27616 | 509 | } |
82b27616 | 510 | } |
e0d19036 NB |
511 | |
512 | static char *alert_email = NULL; | |
513 | void mailline(char *line) | |
514 | { | |
515 | char *w; | |
516 | ||
3c6e95c1 | 517 | for (w=dl_next(line); w != line ; w=dl_next(w)) |
e0d19036 | 518 | if (alert_email == NULL) |
503975b9 | 519 | alert_email = xstrdup(w); |
e0d19036 NB |
520 | } |
521 | ||
4948b8f7 NB |
522 | static char *alert_mail_from = NULL; |
523 | void mailfromline(char *line) | |
524 | { | |
525 | char *w; | |
526 | ||
527 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
528 | if (alert_mail_from == NULL) | |
503975b9 | 529 | alert_mail_from = xstrdup(w); |
4948b8f7 | 530 | else { |
3d2c4fc7 DW |
531 | char *t = NULL; |
532 | ||
78fbcc10 | 533 | if (xasprintf(&t, "%s %s", alert_mail_from, w) > 0) { |
3d2c4fc7 DW |
534 | free(alert_mail_from); |
535 | alert_mail_from = t; | |
536 | } | |
4948b8f7 NB |
537 | } |
538 | } | |
539 | } | |
540 | ||
e0d19036 NB |
541 | static char *alert_program = NULL; |
542 | void programline(char *line) | |
543 | { | |
544 | char *w; | |
545 | ||
3c6e95c1 | 546 | for (w=dl_next(line); w != line ; w=dl_next(w)) |
e0d19036 | 547 | if (alert_program == NULL) |
503975b9 | 548 | alert_program = xstrdup(w); |
e0d19036 NB |
549 | } |
550 | ||
997aed5d | 551 | static char *home_host = NULL; |
0ac91628 | 552 | static int require_homehost = 1; |
997aed5d NB |
553 | void homehostline(char *line) |
554 | { | |
555 | char *w; | |
556 | ||
557 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
0ac91628 N |
558 | if (strcasecmp(w, "<ignore>")==0) |
559 | require_homehost = 0; | |
0f23aa88 N |
560 | else if (home_host == NULL) { |
561 | if (strcasecmp(w, "<none>")==0) | |
503975b9 | 562 | home_host = xstrdup(""); |
0f23aa88 | 563 | else |
503975b9 | 564 | home_host = xstrdup(w); |
3c6e95c1 | 565 | } |
997aed5d NB |
566 | } |
567 | } | |
568 | ||
7716570e GJ |
569 | static char *home_cluster = NULL; |
570 | void homeclusterline(char *line) | |
571 | { | |
572 | char *w; | |
573 | ||
574 | for (w=dl_next(line); w != line ; w=dl_next(w)) { | |
575 | if (home_cluster == NULL) { | |
576 | if (strcasecmp(w, "<none>")==0) | |
577 | home_cluster = xstrdup(""); | |
578 | else | |
579 | home_cluster = xstrdup(w); | |
580 | } | |
581 | } | |
582 | } | |
583 | ||
4e8d9f0a N |
584 | char auto_yes[] = "yes"; |
585 | char auto_no[] = "no"; | |
586 | char auto_homehost[] = "homehost"; | |
587 | ||
588 | static int auto_seen = 0; | |
31015d57 N |
589 | void autoline(char *line) |
590 | { | |
4d0b563b | 591 | char *w; |
4e8d9f0a N |
592 | char *seen; |
593 | int super_cnt; | |
594 | char *dflt = auto_yes; | |
595 | int homehost = 0; | |
596 | int i; | |
4d0b563b | 597 | |
3c6e95c1 | 598 | if (auto_seen) |
31015d57 | 599 | return; |
dbdf3f15 | 600 | auto_seen = 1; |
3c6e95c1 | 601 | |
4e8d9f0a N |
602 | /* Parse the 'auto' line creating policy statements for the 'auto' policy. |
603 | * | |
604 | * The default is 'yes' but the 'auto' line might over-ride that. | |
605 | * Words in the line are processed in order with the first | |
606 | * match winning. | |
607 | * word can be: | |
608 | * +version - that version can be assembled | |
609 | * -version - that version cannot be auto-assembled | |
610 | * yes or +all - any other version can be assembled | |
611 | * no or -all - no other version can be assembled. | |
612 | * homehost - any array associated by 'homehost' to this | |
613 | * host can be assembled. | |
614 | * | |
615 | * Thus: | |
616 | * +ddf -0.90 homehost -all | |
617 | * will auto-assemble any ddf array, no 0.90 array, and | |
618 | * any other array (imsm, 1.x) if and only if it is identified | |
619 | * as belonging to this host. | |
620 | * | |
621 | * We translate that to policy by creating 'auto=yes' when we see | |
622 | * a '+version' line, 'auto=no' if we see '-version' before 'homehost', | |
623 | * or 'auto=homehost' if we see '-version' after 'homehost'. | |
b10c663e | 624 | * When we see yes, no, +all or -all we stop and any version that hasn't |
4e8d9f0a N |
625 | * been seen gets an appropriate auto= entry. |
626 | */ | |
4d0b563b | 627 | |
2dfb675b N |
628 | /* If environment variable MDADM_CONF_AUTO is defined, then |
629 | * it is prepended to the auto line. This allow a script | |
630 | * to easily disable some metadata types. | |
631 | */ | |
632 | w = getenv("MDADM_CONF_AUTO"); | |
633 | if (w && *w) { | |
634 | char *l = xstrdup(w); | |
635 | char *head = line; | |
636 | w = strtok(l, " \t"); | |
637 | while (w) { | |
638 | char *nw = dl_strdup(w); | |
639 | dl_insert(head, nw); | |
640 | head = nw; | |
641 | w = strtok(NULL, " \t"); | |
642 | } | |
643 | free(l); | |
644 | } | |
645 | ||
4e8d9f0a N |
646 | for (super_cnt = 0; superlist[super_cnt]; super_cnt++) |
647 | ; | |
503975b9 | 648 | seen = xcalloc(super_cnt, 1); |
4d0b563b | 649 | |
4e8d9f0a N |
650 | for (w = dl_next(line); w != line ; w = dl_next(w)) { |
651 | char *val; | |
652 | ||
653 | if (strcasecmp(w, "yes") == 0) { | |
654 | dflt = auto_yes; | |
655 | break; | |
656 | } | |
657 | if (strcasecmp(w, "no") == 0) { | |
658 | if (homehost) | |
659 | dflt = auto_homehost; | |
660 | else | |
661 | dflt = auto_no; | |
662 | break; | |
663 | } | |
664 | if (strcasecmp(w, "homehost") == 0) { | |
665 | homehost = 1; | |
666 | continue; | |
667 | } | |
668 | if (w[0] == '+') | |
669 | val = auto_yes; | |
670 | else if (w[0] == '-') { | |
671 | if (homehost) | |
672 | val = auto_homehost; | |
673 | else | |
674 | val = auto_no; | |
675 | } else | |
676 | continue; | |
677 | ||
678 | if (strcasecmp(w+1, "all") == 0) { | |
679 | dflt = val; | |
680 | break; | |
681 | } | |
682 | for (i = 0; superlist[i]; i++) { | |
683 | const char *version = superlist[i]->name; | |
684 | if (strcasecmp(w+1, version) == 0) | |
685 | break; | |
686 | /* 1 matches 1.x, 0 matches 0.90 */ | |
687 | if (version[1] == '.' && | |
688 | strlen(w+1) == 1 && | |
689 | w[1] == version[0]) | |
690 | break; | |
691 | /* 1.anything matches 1.x */ | |
692 | if (strcmp(version, "1.x") == 0 && | |
693 | strncmp(w+1, "1.", 2) == 0) | |
694 | break; | |
695 | } | |
696 | if (superlist[i] == NULL) | |
697 | /* ignore this word */ | |
698 | continue; | |
699 | if (seen[i]) | |
700 | /* already know about this metadata */ | |
701 | continue; | |
702 | policy_add(rule_policy, pol_auto, val, pol_metadata, superlist[i]->name, NULL); | |
703 | seen[i] = 1; | |
4d0b563b | 704 | } |
4e8d9f0a N |
705 | for (i = 0; i < super_cnt; i++) |
706 | if (!seen[i]) | |
707 | policy_add(rule_policy, pol_auto, dflt, pol_metadata, superlist[i]->name, NULL); | |
42de2ac2 TJ |
708 | |
709 | free(seen); | |
31015d57 | 710 | } |
e0d19036 | 711 | |
82b27616 NB |
712 | int loaded = 0; |
713 | ||
8aec876d NB |
714 | static char *conffile = NULL; |
715 | void set_conffile(char *file) | |
716 | { | |
717 | conffile = file; | |
718 | } | |
719 | ||
15af9692 | 720 | void conf_file(FILE *f) |
82b27616 | 721 | { |
52826846 | 722 | char *line; |
52826846 NB |
723 | while ((line=conf_line(f))) { |
724 | switch(match_keyword(line)) { | |
8fe9db0f | 725 | case Devices: |
52826846 NB |
726 | devline(line); |
727 | break; | |
8fe9db0f | 728 | case Array: |
52826846 NB |
729 | arrayline(line); |
730 | break; | |
8fe9db0f | 731 | case Mailaddr: |
e0d19036 NB |
732 | mailline(line); |
733 | break; | |
8fe9db0f | 734 | case Mailfrom: |
4948b8f7 NB |
735 | mailfromline(line); |
736 | break; | |
8fe9db0f NB |
737 | case Program: |
738 | programline(line); | |
739 | break; | |
740 | case CreateDev: | |
5bbb4842 NB |
741 | createline(line); |
742 | break; | |
997aed5d NB |
743 | case Homehost: |
744 | homehostline(line); | |
745 | break; | |
7716570e GJ |
746 | case HomeCluster: |
747 | homeclusterline(line); | |
748 | break; | |
31015d57 N |
749 | case AutoMode: |
750 | autoline(line); | |
751 | break; | |
5527fc74 N |
752 | case Policy: |
753 | policyline(line, rule_policy); | |
754 | break; | |
755 | case PartPolicy: | |
756 | policyline(line, rule_part); | |
757 | break; | |
52826846 | 758 | default: |
e7b84f9d | 759 | pr_err("Unknown keyword %s\n", line); |
52826846 NB |
760 | } |
761 | free_line(line); | |
82b27616 | 762 | } |
15af9692 N |
763 | } |
764 | ||
343b7e75 N |
765 | struct fname { |
766 | struct fname *next; | |
767 | char name[]; | |
768 | }; | |
769 | ||
770 | void conf_file_or_dir(FILE *f) | |
771 | { | |
772 | struct stat st; | |
773 | DIR *dir; | |
774 | struct dirent *dp; | |
775 | struct fname *list = NULL; | |
776 | ||
777 | fstat(fileno(f), &st); | |
778 | if (S_ISREG(st.st_mode)) | |
779 | conf_file(f); | |
780 | else if (!S_ISDIR(st.st_mode)) | |
781 | return; | |
782 | #if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L | |
783 | dir = fdopendir(fileno(f)); | |
784 | if (!dir) | |
785 | return; | |
786 | while ((dp = readdir(dir)) != NULL) { | |
787 | int l; | |
788 | struct fname *fn, **p; | |
789 | if (dp->d_ino == 0) | |
790 | continue; | |
791 | if (dp->d_name[0] == '.') | |
792 | continue; | |
793 | l = strlen(dp->d_name); | |
794 | if (l < 6 || strcmp(dp->d_name+l-5, ".conf") != 0) | |
795 | continue; | |
796 | fn = xmalloc(sizeof(*fn)+l+1); | |
797 | strcpy(fn->name, dp->d_name); | |
798 | for (p = &list; | |
799 | *p && strcmp((*p)->name, fn->name) < 0; | |
800 | p = & (*p)->next) | |
801 | ; | |
802 | fn->next = *p; | |
803 | *p = fn; | |
804 | } | |
805 | while (list) { | |
806 | int fd; | |
807 | FILE *f2; | |
808 | struct fname *fn = list; | |
809 | list = list->next; | |
810 | fd = openat(fileno(f), fn->name, O_RDONLY); | |
811 | free(fn); | |
812 | if (fd < 0) | |
813 | continue; | |
814 | f2 = fdopen(fd, "r"); | |
815 | if (!f2) { | |
816 | close(fd); | |
817 | continue; | |
818 | } | |
819 | conf_file(f2); | |
820 | fclose(f2); | |
821 | } | |
822 | closedir(dir); | |
823 | #endif | |
824 | } | |
825 | ||
15af9692 N |
826 | void load_conffile(void) |
827 | { | |
828 | FILE *f; | |
9dc70cbc | 829 | char *confdir = NULL; |
2dfb675b | 830 | char *head; |
15af9692 | 831 | |
824e5727 N |
832 | if (loaded) |
833 | return; | |
9dc70cbc | 834 | if (conffile == NULL) { |
15af9692 | 835 | conffile = DefaultConfFile; |
9dc70cbc N |
836 | confdir = DefaultConfDir; |
837 | } | |
15af9692 | 838 | |
15af9692 N |
839 | if (strcmp(conffile, "partitions")==0) { |
840 | char *list = dl_strdup("DEV"); | |
841 | dl_init(list); | |
842 | dl_add(list, dl_strdup("partitions")); | |
843 | devline(list); | |
844 | free_line(list); | |
824e5727 N |
845 | } else if (strcmp(conffile, "none") != 0) { |
846 | f = fopen(conffile, "r"); | |
847 | /* Debian chose to relocate mdadm.conf into /etc/mdadm/. | |
848 | * To allow Debian users to compile from clean source and still | |
849 | * have a working mdadm, we read /etc/mdadm/mdadm.conf | |
850 | * if /etc/mdadm.conf doesn't exist | |
851 | */ | |
852 | if (f == NULL && | |
853 | conffile == DefaultConfFile) { | |
854 | f = fopen(DefaultAltConfFile, "r"); | |
855 | if (f) { | |
856 | conffile = DefaultAltConfFile; | |
857 | confdir = DefaultAltConfDir; | |
858 | } | |
9dc70cbc | 859 | } |
9dc70cbc | 860 | if (f) { |
9dc70cbc N |
861 | conf_file_or_dir(f); |
862 | fclose(f); | |
863 | } | |
824e5727 N |
864 | if (confdir) { |
865 | f = fopen(confdir, "r"); | |
866 | if (f) { | |
867 | conf_file_or_dir(f); | |
868 | fclose(f); | |
869 | } | |
870 | } | |
15af9692 | 871 | } |
2dfb675b N |
872 | /* If there was no AUTO line, process an empty line |
873 | * now so that the MDADM_CONF_AUTO env var gets processed. | |
874 | */ | |
875 | head = dl_strdup("AUTO"); | |
876 | dl_init(head); | |
877 | autoline(head); | |
878 | free_line(head); | |
879 | ||
824e5727 | 880 | loaded = 1; |
82b27616 NB |
881 | } |
882 | ||
8aec876d | 883 | char *conf_get_mailaddr(void) |
e0d19036 | 884 | { |
8aec876d | 885 | load_conffile(); |
e0d19036 NB |
886 | return alert_email; |
887 | } | |
888 | ||
8aec876d | 889 | char *conf_get_mailfrom(void) |
4948b8f7 | 890 | { |
8aec876d | 891 | load_conffile(); |
4948b8f7 NB |
892 | return alert_mail_from; |
893 | } | |
894 | ||
8aec876d | 895 | char *conf_get_program(void) |
e0d19036 | 896 | { |
8aec876d | 897 | load_conffile(); |
e0d19036 NB |
898 | return alert_program; |
899 | } | |
900 | ||
0ac91628 | 901 | char *conf_get_homehost(int *require_homehostp) |
997aed5d | 902 | { |
8aec876d | 903 | load_conffile(); |
0ac91628 N |
904 | if (require_homehostp) |
905 | *require_homehostp = require_homehost; | |
997aed5d NB |
906 | return home_host; |
907 | } | |
908 | ||
7716570e GJ |
909 | char *conf_get_homecluster(void) |
910 | { | |
911 | load_conffile(); | |
912 | return home_cluster; | |
913 | } | |
914 | ||
8aec876d | 915 | struct createinfo *conf_get_create_info(void) |
5bbb4842 | 916 | { |
8aec876d | 917 | load_conffile(); |
5bbb4842 NB |
918 | return &createinfo; |
919 | } | |
82b27616 | 920 | |
fa56eddb | 921 | struct mddev_ident *conf_get_ident(char *dev) |
64c4757e | 922 | { |
fa56eddb | 923 | struct mddev_ident *rv; |
8aec876d | 924 | load_conffile(); |
52826846 | 925 | rv = mddevlist; |
fe056d1f | 926 | while (dev && rv && (rv->devname == NULL |
5c4c9ab1 | 927 | || !devname_matches(dev, rv->devname))) |
52826846 NB |
928 | rv = rv->next; |
929 | return rv; | |
64c4757e NB |
930 | } |
931 | ||
a655e550 | 932 | static void append_dlist(struct mddev_dev **dlp, struct mddev_dev *list) |
f64165f7 DW |
933 | { |
934 | while (*dlp) | |
935 | dlp = &(*dlp)->next; | |
936 | *dlp = list; | |
937 | } | |
938 | ||
a655e550 | 939 | struct mddev_dev *conf_get_devs() |
64c4757e | 940 | { |
52826846 NB |
941 | glob_t globbuf; |
942 | struct conf_dev *cd; | |
943 | int flags = 0; | |
a655e550 | 944 | static struct mddev_dev *dlist = NULL; |
98c6faba | 945 | unsigned int i; |
52826846 NB |
946 | |
947 | while (dlist) { | |
a655e550 | 948 | struct mddev_dev *t = dlist; |
52826846 NB |
949 | dlist = dlist->next; |
950 | free(t->devname); | |
951 | free(t); | |
952 | } | |
aba69144 | 953 | |
8aec876d | 954 | load_conffile(); |
a99d6b66 | 955 | |
f8f84cd5 DW |
956 | if (cdevlist == NULL) { |
957 | /* default to 'partitions' and 'containers' */ | |
a99d6b66 | 958 | dlist = load_partitions(); |
f8f84cd5 DW |
959 | append_dlist(&dlist, load_containers()); |
960 | } | |
a99d6b66 | 961 | |
52826846 | 962 | for (cd=cdevlist; cd; cd=cd->next) { |
f64165f7 DW |
963 | if (strcasecmp(cd->name, "partitions")==0) |
964 | append_dlist(&dlist, load_partitions()); | |
965 | else if (strcasecmp(cd->name, "containers")==0) | |
966 | append_dlist(&dlist, load_containers()); | |
057bd352 NB |
967 | else { |
968 | glob(cd->name, flags, NULL, &globbuf); | |
969 | flags |= GLOB_APPEND; | |
970 | } | |
52826846 | 971 | } |
e0d19036 NB |
972 | if (flags & GLOB_APPEND) { |
973 | for (i=0; i<globbuf.gl_pathc; i++) { | |
503975b9 | 974 | struct mddev_dev *t = xmalloc(sizeof(*t)); |
5e73b024 | 975 | memset(t, 0, sizeof(*t)); |
503975b9 | 976 | t->devname = xstrdup(globbuf.gl_pathv[i]); |
e0d19036 NB |
977 | t->next = dlist; |
978 | dlist = t; | |
82b27616 | 979 | /* printf("one dev is %s\n", t->devname);*/ |
e0d19036 NB |
980 | } |
981 | globfree(&globbuf); | |
52826846 | 982 | } |
82b27616 | 983 | |
52826846 | 984 | return dlist; |
64c4757e NB |
985 | } |
986 | ||
8382f19b NB |
987 | int conf_test_dev(char *devname) |
988 | { | |
989 | struct conf_dev *cd; | |
990 | if (cdevlist == NULL) | |
991 | /* allow anything by default */ | |
992 | return 1; | |
993 | for (cd = cdevlist ; cd ; cd = cd->next) { | |
994 | if (strcasecmp(cd->name, "partitions") == 0) | |
995 | return 1; | |
996 | if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0) | |
997 | return 1; | |
998 | } | |
999 | return 0; | |
1000 | } | |
1001 | ||
4e8d9f0a | 1002 | int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost) |
31015d57 | 1003 | { |
4e8d9f0a N |
1004 | /* If anyone said 'yes', that sticks. |
1005 | * else if homehost applies, use that | |
1006 | * else if there is a 'no', say 'no'. | |
1007 | * else 'yes'. | |
31015d57 | 1008 | */ |
4e8d9f0a | 1009 | struct dev_policy *p; |
b10c663e | 1010 | int no=0, found_homehost=0; |
31015d57 | 1011 | load_conffile(); |
4e8d9f0a N |
1012 | |
1013 | pol = pol_find(pol, pol_auto); | |
1014 | pol_for_each(p, pol, version) { | |
1015 | if (strcmp(p->value, "yes") == 0) | |
31015d57 | 1016 | return 1; |
b10c663e N |
1017 | if (strcmp(p->value, "homehost") == 0) |
1018 | found_homehost = 1; | |
4e8d9f0a N |
1019 | if (strcmp(p->value, "no") == 0) |
1020 | no = 1; | |
31015d57 | 1021 | } |
b10c663e | 1022 | if (is_homehost && found_homehost) |
4e8d9f0a N |
1023 | return 1; |
1024 | if (no) | |
1025 | return 0; | |
31015d57 N |
1026 | return 1; |
1027 | } | |
8382f19b | 1028 | |
52826846 NB |
1029 | int match_oneof(char *devices, char *devname) |
1030 | { | |
5d500228 N |
1031 | /* check if one of the comma separated patterns in devices |
1032 | * matches devname | |
1033 | */ | |
1034 | ||
1035 | while (devices && *devices) { | |
1036 | char patn[1024]; | |
1037 | char *p = devices; | |
1038 | devices = strchr(devices, ','); | |
1039 | if (!devices) | |
1040 | devices = p + strlen(p); | |
1041 | if (devices-p < 1024) { | |
1042 | strncpy(patn, p, devices-p); | |
1043 | patn[devices-p] = 0; | |
1044 | if (fnmatch(patn, devname, FNM_PATHNAME)==0) | |
1045 | return 1; | |
1046 | } | |
1047 | if (*devices == ',') | |
1048 | devices++; | |
52826846 | 1049 | } |
5d500228 | 1050 | return 0; |
52826846 | 1051 | } |
0ac91628 N |
1052 | |
1053 | int devname_matches(char *name, char *match) | |
1054 | { | |
1055 | /* See if the given array name matches the | |
1056 | * given match from config file. | |
1057 | * | |
1058 | * First strip and /dev/md/ or /dev/, then | |
1059 | * see if there might be a numeric match of | |
1060 | * mdNN with NN | |
1061 | * then just strcmp | |
1062 | */ | |
1063 | if (strncmp(name, "/dev/md/", 8) == 0) | |
1064 | name += 8; | |
1065 | else if (strncmp(name, "/dev/", 5) == 0) | |
1066 | name += 5; | |
1067 | ||
1068 | if (strncmp(match, "/dev/md/", 8) == 0) | |
1069 | match += 8; | |
1070 | else if (strncmp(match, "/dev/", 5) == 0) | |
1071 | match += 5; | |
1072 | ||
0ac91628 N |
1073 | if (strncmp(name, "md", 2) == 0 && |
1074 | isdigit(name[2])) | |
1075 | name += 2; | |
1076 | if (strncmp(match, "md", 2) == 0 && | |
1077 | isdigit(match[2])) | |
1078 | match += 2; | |
1079 | ||
1080 | return (strcmp(name, match) == 0); | |
1081 | } | |
1082 | ||
1083 | int conf_name_is_free(char *name) | |
1084 | { | |
4dd2df09 | 1085 | /* Check if this name is already taken by an ARRAY entry in |
0ac91628 N |
1086 | * the config file. |
1087 | * It can be taken either by a match on devname, name, or | |
1088 | * even super-minor. | |
1089 | */ | |
fa56eddb | 1090 | struct mddev_ident *dev; |
0ac91628 N |
1091 | |
1092 | load_conffile(); | |
1093 | for (dev = mddevlist; dev; dev = dev->next) { | |
1094 | char nbuf[100]; | |
1095 | if (dev->devname && devname_matches(name, dev->devname)) | |
1096 | return 0; | |
1097 | if (dev->name[0] && devname_matches(name, dev->name)) | |
1098 | return 0; | |
1099 | sprintf(nbuf, "%d", dev->super_minor); | |
1100 | if (dev->super_minor != UnSet && | |
1101 | devname_matches(name, nbuf)) | |
1102 | return 0; | |
1103 | } | |
1104 | return 1; | |
1105 | } | |
360b4636 | 1106 | |
2244d1a9 N |
1107 | struct mddev_ident *conf_match(struct supertype *st, |
1108 | struct mdinfo *info, | |
1109 | char *devname, | |
1110 | int verbose, int *rvp) | |
360b4636 | 1111 | { |
fa56eddb | 1112 | struct mddev_ident *array_list, *match; |
360b4636 N |
1113 | array_list = conf_get_ident(NULL); |
1114 | match = NULL; | |
1115 | for (; array_list; array_list = array_list->next) { | |
1116 | if (array_list->uuid_set && | |
1117 | same_uuid(array_list->uuid, info->uuid, st->ss->swapuuid) | |
1118 | == 0) { | |
1119 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1120 | pr_err("UUID differs from %s.\n", |
1121 | array_list->devname); | |
360b4636 N |
1122 | continue; |
1123 | } | |
1124 | if (array_list->name[0] && | |
1125 | strcasecmp(array_list->name, info->name) != 0) { | |
1126 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1127 | pr_err("Name differs from %s.\n", |
1128 | array_list->devname); | |
360b4636 N |
1129 | continue; |
1130 | } | |
9f1b0f0f | 1131 | if (array_list->devices && devname && |
360b4636 N |
1132 | !match_oneof(array_list->devices, devname)) { |
1133 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1134 | pr_err("Not a listed device for %s.\n", |
1135 | array_list->devname); | |
360b4636 N |
1136 | continue; |
1137 | } | |
1138 | if (array_list->super_minor != UnSet && | |
1139 | array_list->super_minor != info->array.md_minor) { | |
1140 | if (verbose >= 2 && array_list->devname) | |
e7b84f9d N |
1141 | pr_err("Different super-minor to %s.\n", |
1142 | array_list->devname); | |
360b4636 N |
1143 | continue; |
1144 | } | |
1145 | if (!array_list->uuid_set && | |
1146 | !array_list->name[0] && | |
1147 | !array_list->devices && | |
1148 | array_list->super_minor == UnSet) { | |
1149 | if (verbose >= 2 && array_list->devname) | |
7a862a02 | 1150 | pr_err("%s doesn't have any identifying information.\n", |
e7b84f9d | 1151 | array_list->devname); |
360b4636 N |
1152 | continue; |
1153 | } | |
1154 | /* FIXME, should I check raid_disks and level too?? */ | |
1155 | ||
1156 | if (match) { | |
1157 | if (verbose >= 0) { | |
1158 | if (match->devname && array_list->devname) | |
7a862a02 | 1159 | pr_err("we match both %s and %s - cannot decide which to use.\n", |
e7b84f9d N |
1160 | match->devname, |
1161 | array_list->devname); | |
360b4636 | 1162 | else |
7a862a02 | 1163 | pr_err("multiple lines in mdadm.conf match\n"); |
360b4636 | 1164 | } |
2244d1a9 N |
1165 | if (rvp) |
1166 | *rvp = 2; | |
1167 | match = NULL; | |
1168 | break; | |
360b4636 N |
1169 | } |
1170 | match = array_list; | |
1171 | } | |
1172 | return match; | |
1173 | } | |
7c336758 LO |
1174 | |
1175 | int conf_verify_devnames(struct mddev_ident *array_list) | |
1176 | { | |
1177 | struct mddev_ident *a1, *a2; | |
1178 | ||
1179 | for (a1 = array_list; a1; a1 = a1->next) { | |
1180 | if (!a1->devname) | |
1181 | continue; | |
13f2dd6b N |
1182 | if (strcmp(a1->devname, "<ignore>") == 0) |
1183 | continue; | |
7c336758 LO |
1184 | for (a2 = a1->next; a2; a2 = a2->next) { |
1185 | if (!a2->devname) | |
1186 | continue; | |
1187 | if (strcmp(a1->devname, a2->devname) != 0) | |
1188 | continue; | |
1189 | ||
1190 | if (a1->uuid_set && a2->uuid_set) { | |
1191 | char nbuf[64]; | |
1192 | __fname_from_uuid(a1->uuid, 0, nbuf, ':'); | |
e7b84f9d N |
1193 | pr_err("Devices %s and ", |
1194 | nbuf); | |
7c336758 LO |
1195 | __fname_from_uuid(a2->uuid, 0, nbuf, ':'); |
1196 | fprintf(stderr, | |
1197 | "%s have the same name: %s\n", | |
1198 | nbuf, a1->devname); | |
1199 | } else | |
7a862a02 | 1200 | pr_err("Device %s given twice in config file\n", a1->devname); |
7c336758 LO |
1201 | return 1; |
1202 | } | |
1203 | } | |
1204 | ||
1205 | return 0; | |
1206 | } |