]>
git.ipfire.org Git - thirdparty/mdadm.git/blob - config.c
2 * mdadm - manage Linux "md" devices aka RAID arrays.
4 * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
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.
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.
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
22 * Email: <neilb@suse.de>
35 * Read the config file
37 * conf_get_uuids gets a list of devicename+uuid pairs
38 * conf_get_devs gets device names after expanding wildcards
40 * Each keeps the returned list and frees it when asked to make
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.
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.
54 * Keywords are DEVICE and ARRAY ... and several others.
55 * DEV{ICE} introduces some devices that might contain raid components.
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
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
68 #define CONFFILE "/etc/mdadm.conf"
71 /* for Debian compatibility .... */
72 #define CONFFILE2 "/etc/mdadm/mdadm.conf"
74 char DefaultConfFile
[] = CONFFILE
;
75 char DefaultAltConfFile
[] = CONFFILE2
;
77 enum linetype
{ Devices
, Array
, Mailaddr
, Mailfrom
, Program
, CreateDev
,
78 Homehost
, AutoMode
, Policy
, PartPolicy
, LTEnd
};
80 [Devices
] = "devices",
82 [Mailaddr
] = "mailaddr",
83 [Mailfrom
] = "mailfrom",
84 [Program
] = "program",
85 [CreateDev
]= "create",
86 [Homehost
] = "homehost",
89 [PartPolicy
]="part-policy",
94 * match_keyword returns an index into the keywords array, or -1 for no match
95 * case is ignored, and at least three characters must be given
98 int match_keyword(char *word
)
100 int len
= strlen(word
);
103 if (len
< 3) return -1;
104 for (n
=0; keywords
[n
]; n
++) {
105 if (strncasecmp(word
, keywords
[n
], len
)==0)
111 /* conf_word gets one word from the conf file.
112 * if "allow_key", then accept words at the start of a line,
113 * otherwise stop when such a word is found.
114 * We assume that the file pointer is at the end of a word, so the
115 * next character is a space, or a newline. If not, it is the start of a line.
118 char *conf_word(FILE *file
, int allow_key
)
125 char *word
= malloc(wsize
);
129 while (wordfound
==0) {
130 /* at the end of a word.. */
133 while (c
!= EOF
&& c
!= '\n')
136 if (c
== '\n') continue;
138 if (c
!= ' ' && c
!= '\t' && ! allow_key
) {
142 /* looks like it is safe to get a word here, if there is one */
144 /* first, skip any spaces */
145 while (c
== ' ' || c
== '\t')
147 if (c
!= EOF
&& c
!= '\n' && c
!= '#') {
148 /* we really have a character of a word, so start saving it */
149 while (c
!= EOF
&& c
!= '\n' && (quote
|| (c
!=' ' && c
!= '\t'))) {
151 if (quote
&& c
== quote
) quote
= 0;
152 else if (quote
== 0 && (c
== '\'' || c
== '"'))
155 if (len
== wsize
-1) {
157 word
= realloc(word
, wsize
);
163 /* Hack for broken kernels (2.6.14-.24) that put
164 * "active(auto-read-only)"
165 * in /proc/mdstat instead of
166 * "active (auto-read-only)"
168 if (c
== '(' && len
>= 6
169 && strncmp(word
+len
-6, "active", 6) == 0)
173 if (c
!= EOF
) ungetc(c
, file
);
177 /* Further HACK for broken kernels.. 2.6.14-2.6.24 */
178 if (strcmp(word
, "auto-read-only)") == 0)
179 strcpy(word
, "(auto-read-only)");
181 /* printf("word is <%s>\n", word); */
190 * conf_line reads one logical line from the conffile.
191 * It skips comments and continues until it finds a line that starts
192 * with a non blank/comment. This character is pushed back for the next call
193 * A doubly linked list of words is returned.
194 * the first word will be a keyword. Other words will have had quotes removed.
197 char *conf_line(FILE *file
)
202 w
= conf_word(file
, 1);
203 if (w
== NULL
) return NULL
;
209 while ((w
= conf_word(file
,0))){
210 char *w2
= dl_strdup(w
);
214 /* printf("got a line\n");*/
218 void free_line(char *line
)
221 for (w
=dl_next(line
); w
!= line
; w
=dl_next(line
)) {
230 struct conf_dev
*next
;
234 struct mddev_dev
*load_partitions(void)
236 FILE *f
= fopen("/proc/partitions", "r");
238 struct mddev_dev
*rv
= NULL
;
240 fprintf(stderr
, Name
": cannot open /proc/partitions\n");
243 while (fgets(buf
, 1024, f
)) {
251 major
= strtoul(buf
, &mp
, 10);
252 if (mp
== buf
|| *mp
!= ' ')
254 minor
= strtoul(mp
, NULL
, 10);
256 name
= map_dev(major
, minor
, 1);
259 d
= malloc(sizeof(*d
));
260 d
->devname
= strdup(name
);
269 struct mddev_dev
*load_containers(void)
271 struct mdstat_ent
*mdstat
= mdstat_read(1, 0);
272 struct mdstat_ent
*ent
;
274 struct mddev_dev
*rv
= NULL
;
279 for (ent
= mdstat
; ent
; ent
= ent
->next
)
280 if (ent
->metadata_version
&&
281 strncmp(ent
->metadata_version
, "external:", 9) == 0 &&
282 !is_subarray(&ent
->metadata_version
[9])) {
283 d
= malloc(sizeof(*d
));
286 if (asprintf(&d
->devname
, "/dev/%s", ent
->dev
) < 0) {
299 struct createinfo createinfo
= {
300 .autof
= 2, /* by default, create devices with standard names */
310 int parse_auto(char *str
, char *msg
, int config
)
313 if (str
== NULL
|| *str
== 0)
315 else if (strcasecmp(str
,"no")==0)
317 else if (strcasecmp(str
,"yes")==0)
319 else if (strcasecmp(str
,"md")==0)
322 /* There might be digits, and maybe a hypen, at the end */
323 char *e
= str
+ strlen(str
);
326 while (e
> str
&& isdigit(e
[-1]))
330 if (num
<= 0) num
= 1;
332 if (e
> str
&& e
[-1] == '-')
335 if ((len
== 2 && strncasecmp(str
,"md",2)==0)) {
336 autof
= config
? 5 : 3;
337 } else if ((len
== 3 && strncasecmp(str
,"yes",3)==0)) {
339 } else if ((len
== 3 && strncasecmp(str
,"mdp",3)==0)) {
340 autof
= config
? 6 : 4;
341 } else if ((len
== 1 && strncasecmp(str
,"p",1)==0) ||
342 (len
>= 4 && strncasecmp(str
,"part",4)==0)) {
345 fprintf(stderr
, Name
": %s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n"
346 " optionally followed by a number.\n",
355 static void createline(char *line
)
360 for (w
=dl_next(line
); w
!=line
; w
=dl_next(w
)) {
361 if (strncasecmp(w
, "auto=", 5) == 0)
362 createinfo
.autof
= parse_auto(w
+5, "auto=", 1);
363 else if (strncasecmp(w
, "owner=", 6) == 0) {
365 fprintf(stderr
, Name
": missing owner name\n");
368 createinfo
.uid
= strtoul(w
+6, &ep
, 10);
374 createinfo
.uid
= pw
->pw_uid
;
376 fprintf(stderr
, Name
": CREATE user %s not found\n", w
+6);
378 } else if (strncasecmp(w
, "group=", 6) == 0) {
380 fprintf(stderr
, Name
": missing group name\n");
383 createinfo
.gid
= strtoul(w
+6, &ep
, 10);
389 createinfo
.gid
= gr
->gr_gid
;
391 fprintf(stderr
, Name
": CREATE group %s not found\n", w
+6);
393 } else if (strncasecmp(w
, "mode=", 5) == 0) {
395 fprintf(stderr
, Name
": missing CREATE mode\n");
398 createinfo
.mode
= strtoul(w
+5, &ep
, 8);
400 createinfo
.mode
= 0600;
401 fprintf(stderr
, Name
": unrecognised CREATE mode %s\n",
404 } else if (strncasecmp(w
, "metadata=", 9) == 0) {
405 /* style of metadata to use by default */
407 for (i
=0; superlist
[i
] && !createinfo
.supertype
; i
++)
408 createinfo
.supertype
=
409 superlist
[i
]->match_metadata_desc(w
+9);
410 if (!createinfo
.supertype
)
411 fprintf(stderr
, Name
": metadata format %s unknown, ignoring\n",
413 } else if (strncasecmp(w
, "symlinks=yes", 12) == 0)
414 createinfo
.symlinks
= 1;
415 else if (strncasecmp(w
, "symlinks=no", 11) == 0)
416 createinfo
.symlinks
= 0;
418 fprintf(stderr
, Name
": unrecognised word on CREATE line: %s\n",
424 void devline(char *line
)
429 for (w
=dl_next(line
); w
!= line
; w
=dl_next(w
)) {
430 if (w
[0] == '/' || strcasecmp(w
, "partitions") == 0 ||
431 strcasecmp(w
, "containers") == 0) {
432 cd
= malloc(sizeof(*cd
));
433 cd
->name
= strdup(w
);
437 fprintf(stderr
, Name
": unreconised word on DEVICE line: %s\n",
443 struct mddev_ident
*mddevlist
= NULL
;
444 struct mddev_ident
**mddevlp
= &mddevlist
;
446 static int is_number(char *w
)
448 /* check if there are 1 or more digits and nothing else */
450 while (*w
&& isdigit(*w
)) {
454 return (digits
&& ! *w
);
457 void arrayline(char *line
)
461 struct mddev_ident mis
;
462 struct mddev_ident
*mi
;
465 mis
.super_minor
= UnSet
;
467 mis
.raid_disks
= UnSet
;
471 mis
.spare_group
= NULL
;
476 mis
.bitmap_file
= NULL
;
478 mis
.container
= NULL
;
481 for (w
=dl_next(line
); w
!=line
; w
=dl_next(w
)) {
482 if (w
[0] == '/' || strchr(w
, '=') == NULL
) {
483 /* This names the device, or is '<ignore>'.
484 * The rules match those in create_mddev.
490 * or anything that doesn't start '/' or '<'
492 if (strcasecmp(w
, "<ignore>") == 0 ||
493 strncmp(w
, "/dev/md/", 8) == 0 ||
494 (w
[0] != '/' && w
[0] != '<') ||
495 (strncmp(w
, "/dev/md", 7) == 0 &&
497 (strncmp(w
, "/dev/md_d", 9) == 0 &&
500 /* This is acceptable */;
502 fprintf(stderr
, Name
": only give one "
503 "device per ARRAY line: %s and %s\n",
508 fprintf(stderr
, Name
": %s is an invalid name for "
509 "an md device - ignored.\n", w
);
511 } else if (strncasecmp(w
, "uuid=", 5)==0 ) {
513 fprintf(stderr
, Name
": only specify uuid once, %s ignored.\n",
516 if (parse_uuid(w
+5, mis
.uuid
))
519 fprintf(stderr
, Name
": bad uuid: %s\n", w
);
521 } else if (strncasecmp(w
, "super-minor=", 12)==0 ) {
522 if (mis
.super_minor
!= UnSet
)
523 fprintf(stderr
, Name
": only specify super-minor once, %s ignored.\n",
527 int minor
= strtol(w
+12, &endptr
, 10);
529 if (w
[12]==0 || endptr
[0]!=0 || minor
< 0)
530 fprintf(stderr
, Name
": invalid super-minor number: %s\n",
533 mis
.super_minor
= minor
;
535 } else if (strncasecmp(w
, "name=", 5)==0) {
537 fprintf(stderr
, Name
": only specify name once, %s ignored.\n",
539 else if (strlen(w
+5) > 32)
540 fprintf(stderr
, Name
": name too long, ignoring %s\n", w
);
542 strcpy(mis
.name
, w
+5);
544 } else if (strncasecmp(w
, "bitmap=", 7) == 0) {
546 fprintf(stderr
, Name
": only specify bitmap file once. %s ignored\n",
549 mis
.bitmap_file
= strdup(w
+7);
551 } else if (strncasecmp(w
, "devices=", 8 ) == 0 ) {
553 fprintf(stderr
, Name
": only specify devices once (use a comma separated list). %s ignored\n",
556 mis
.devices
= strdup(w
+8);
557 } else if (strncasecmp(w
, "spare-group=", 12) == 0 ) {
559 fprintf(stderr
, Name
": only specify one spare group per array. %s ignored.\n",
562 mis
.spare_group
= strdup(w
+12);
563 } else if (strncasecmp(w
, "level=", 6) == 0 ) {
564 /* this is mainly for compatability with --brief output */
565 mis
.level
= map_name(pers
, w
+6);
566 } else if (strncasecmp(w
, "disks=", 6) == 0 ) {
567 /* again, for compat */
568 mis
.raid_disks
= atoi(w
+6);
569 } else if (strncasecmp(w
, "num-devices=", 12) == 0 ) {
570 /* again, for compat */
571 mis
.raid_disks
= atoi(w
+12);
572 } else if (strncasecmp(w
, "spares=", 7) == 0 ) {
573 /* for warning if not all spares present */
574 mis
.spare_disks
= atoi(w
+7);
575 } else if (strncasecmp(w
, "metadata=", 9) == 0) {
576 /* style of metadata on the devices. */
579 for(i
=0; superlist
[i
] && !mis
.st
; i
++)
580 mis
.st
= superlist
[i
]->match_metadata_desc(w
+9);
583 fprintf(stderr
, Name
": metadata format %s unknown, ignored.\n", w
+9);
584 } else if (strncasecmp(w
, "auto=", 5) == 0 ) {
585 /* whether to create device special files as needed */
586 mis
.autof
= parse_auto(w
+5, "auto type", 0);
587 } else if (strncasecmp(w
, "member=", 7) == 0) {
588 /* subarray within a container */
589 mis
.member
= strdup(w
+7);
590 } else if (strncasecmp(w
, "container=", 10) == 0) {
591 /* the container holding this subarray. Either a device name
593 mis
.container
= strdup(w
+10);
595 fprintf(stderr
, Name
": unrecognised word on ARRAY line: %s\n",
599 if (mis
.uuid_set
== 0 && mis
.devices
== NULL
&&
600 mis
.super_minor
== UnSet
&& mis
.name
[0] == 0 &&
601 (mis
.container
== NULL
|| mis
.member
== NULL
))
602 fprintf(stderr
, Name
": ARRAY line %s has no identity information.\n", mis
.devname
);
604 mi
= malloc(sizeof(*mi
));
606 mi
->devname
= mis
.devname
? strdup(mis
.devname
) : NULL
;
613 static char *alert_email
= NULL
;
614 void mailline(char *line
)
618 for (w
=dl_next(line
); w
!= line
; w
=dl_next(w
)) {
619 if (alert_email
== NULL
)
620 alert_email
= strdup(w
);
622 fprintf(stderr
, Name
": excess address on MAIL line: %s - ignored\n",
627 static char *alert_mail_from
= NULL
;
628 void mailfromline(char *line
)
632 for (w
=dl_next(line
); w
!= line
; w
=dl_next(w
)) {
633 if (alert_mail_from
== NULL
)
634 alert_mail_from
= strdup(w
);
638 if (xasprintf(&t
, "%s %s", alert_mail_from
, w
) > 0) {
639 free(alert_mail_from
);
647 static char *alert_program
= NULL
;
648 void programline(char *line
)
652 for (w
=dl_next(line
); w
!= line
; w
=dl_next(w
)) {
653 if (alert_program
== NULL
)
654 alert_program
= strdup(w
);
656 fprintf(stderr
, Name
": excess program on PROGRAM line: %s - ignored\n",
661 static char *home_host
= NULL
;
662 static int require_homehost
= 1;
663 void homehostline(char *line
)
667 for (w
=dl_next(line
); w
!= line
; w
=dl_next(w
)) {
668 if (strcasecmp(w
, "<ignore>")==0)
669 require_homehost
= 0;
670 else if (home_host
== NULL
)
671 home_host
= strdup(w
);
673 fprintf(stderr
, Name
": excess host name on HOMEHOST line: %s - ignored\n",
678 char auto_yes
[] = "yes";
679 char auto_no
[] = "no";
680 char auto_homehost
[] = "homehost";
682 static int auto_seen
= 0;
683 void autoline(char *line
)
688 char *dflt
= auto_yes
;
693 fprintf(stderr
, Name
": AUTO line may only be give once."
694 " Subsequent lines ignored\n");
697 /* Parse the 'auto' line creating policy statements for the 'auto' policy.
699 * The default is 'yes' but the 'auto' line might over-ride that.
700 * Words in the line are processed in order with the first
703 * +version - that version can be assembled
704 * -version - that version cannot be auto-assembled
705 * yes or +all - any other version can be assembled
706 * no or -all - no other version can be assembled.
707 * homehost - any array associated by 'homehost' to this
708 * host can be assembled.
711 * +ddf -0.90 homehost -all
712 * will auto-assemble any ddf array, no 0.90 array, and
713 * any other array (imsm, 1.x) if and only if it is identified
714 * as belonging to this host.
716 * We translate that to policy by creating 'auto=yes' when we see
717 * a '+version' line, 'auto=no' if we see '-version' before 'homehost',
718 * or 'auto=homehost' if we see '-version' after 'homehost'.
719 * When we see yes, no, +all or -all we stop an any version that hasn't
720 * been seen gets an appropriate auto= entry.
723 for (super_cnt
= 0; superlist
[super_cnt
]; super_cnt
++)
725 seen
= calloc(super_cnt
, 1);
727 for (w
= dl_next(line
); w
!= line
; w
= dl_next(w
)) {
730 if (strcasecmp(w
, "yes") == 0) {
734 if (strcasecmp(w
, "no") == 0) {
736 dflt
= auto_homehost
;
741 if (strcasecmp(w
, "homehost") == 0) {
747 else if (w
[0] == '-') {
755 if (strcasecmp(w
+1, "all") == 0) {
759 for (i
= 0; superlist
[i
]; i
++) {
760 const char *version
= superlist
[i
]->name
;
761 if (strcasecmp(w
+1, version
) == 0)
763 /* 1 matches 1.x, 0 matches 0.90 */
764 if (version
[1] == '.' &&
768 /* 1.anything matches 1.x */
769 if (strcmp(version
, "1.x") == 0 &&
770 strncmp(w
+1, "1.", 2) == 0)
773 if (superlist
[i
] == NULL
)
774 /* ignore this word */
777 /* already know about this metadata */
779 policy_add(rule_policy
, pol_auto
, val
, pol_metadata
, superlist
[i
]->name
, NULL
);
782 for (i
= 0; i
< super_cnt
; i
++)
784 policy_add(rule_policy
, pol_auto
, dflt
, pol_metadata
, superlist
[i
]->name
, NULL
);
789 static char *conffile
= NULL
;
790 void set_conffile(char *file
)
795 void load_conffile(void)
801 if (conffile
== NULL
)
802 conffile
= DefaultConfFile
;
804 if (strcmp(conffile
, "none") == 0) {
808 if (strcmp(conffile
, "partitions")==0) {
809 char *list
= dl_strdup("DEV");
811 dl_add(list
, dl_strdup("partitions"));
817 f
= fopen(conffile
, "r");
818 /* Debian chose to relocate mdadm.conf into /etc/mdadm/.
819 * To allow Debian users to compile from clean source and still
820 * have a working mdadm, we read /etc/mdadm/mdadm.conf
821 * if /etc/mdadm.conf doesn't exist
824 conffile
== DefaultConfFile
) {
825 f
= fopen(DefaultAltConfFile
, "r");
827 conffile
= DefaultAltConfFile
;
833 while ((line
=conf_line(f
))) {
834 switch(match_keyword(line
)) {
860 policyline(line
, rule_policy
);
863 policyline(line
, rule_part
);
866 fprintf(stderr
, Name
": Unknown keyword %s\n", line
);
873 /* printf("got file\n"); */
876 char *conf_get_mailaddr(void)
882 char *conf_get_mailfrom(void)
885 return alert_mail_from
;
888 char *conf_get_program(void)
891 return alert_program
;
894 char *conf_get_homehost(int *require_homehostp
)
897 if (require_homehostp
)
898 *require_homehostp
= require_homehost
;
902 struct createinfo
*conf_get_create_info(void)
908 struct mddev_ident
*conf_get_ident(char *dev
)
910 struct mddev_ident
*rv
;
913 while (dev
&& rv
&& (rv
->devname
== NULL
914 || !devname_matches(dev
, rv
->devname
)))
919 static void append_dlist(struct mddev_dev
**dlp
, struct mddev_dev
*list
)
926 struct mddev_dev
*conf_get_devs()
931 static struct mddev_dev
*dlist
= NULL
;
935 struct mddev_dev
*t
= dlist
;
943 if (cdevlist
== NULL
) {
944 /* default to 'partitions' and 'containers' */
945 dlist
= load_partitions();
946 append_dlist(&dlist
, load_containers());
949 for (cd
=cdevlist
; cd
; cd
=cd
->next
) {
950 if (strcasecmp(cd
->name
, "partitions")==0)
951 append_dlist(&dlist
, load_partitions());
952 else if (strcasecmp(cd
->name
, "containers")==0)
953 append_dlist(&dlist
, load_containers());
955 glob(cd
->name
, flags
, NULL
, &globbuf
);
956 flags
|= GLOB_APPEND
;
959 if (flags
& GLOB_APPEND
) {
960 for (i
=0; i
<globbuf
.gl_pathc
; i
++) {
961 struct mddev_dev
*t
= malloc(sizeof(*t
));
962 t
->devname
= strdup(globbuf
.gl_pathv
[i
]);
966 /* printf("one dev is %s\n", t->devname);*/
974 int conf_test_dev(char *devname
)
977 if (cdevlist
== NULL
)
978 /* allow anything by default */
980 for (cd
= cdevlist
; cd
; cd
= cd
->next
) {
981 if (strcasecmp(cd
->name
, "partitions") == 0)
983 if (fnmatch(cd
->name
, devname
, FNM_PATHNAME
) == 0)
989 int conf_test_metadata(const char *version
, struct dev_policy
*pol
, int is_homehost
)
991 /* If anyone said 'yes', that sticks.
992 * else if homehost applies, use that
993 * else if there is a 'no', say 'no'.
996 struct dev_policy
*p
;
997 int no
=0, found_auto
=0;
1000 pol
= pol_find(pol
, pol_auto
);
1001 pol_for_each(p
, pol
, version
) {
1002 if (strcmp(p
->value
, "yes") == 0)
1004 if (strcmp(p
->value
, "auto") == 0)
1006 if (strcmp(p
->value
, "no") == 0)
1009 if (is_homehost
&& found_auto
)
1016 int match_oneof(char *devices
, char *devname
)
1018 /* check if one of the comma separated patterns in devices
1022 while (devices
&& *devices
) {
1025 devices
= strchr(devices
, ',');
1027 devices
= p
+ strlen(p
);
1028 if (devices
-p
< 1024) {
1029 strncpy(patn
, p
, devices
-p
);
1030 patn
[devices
-p
] = 0;
1031 if (fnmatch(patn
, devname
, FNM_PATHNAME
)==0)
1034 if (*devices
== ',')
1040 int devname_matches(char *name
, char *match
)
1042 /* See if the given array name matches the
1043 * given match from config file.
1045 * First strip and /dev/md/ or /dev/, then
1046 * see if there might be a numeric match of
1050 if (strncmp(name
, "/dev/md/", 8) == 0)
1052 else if (strncmp(name
, "/dev/", 5) == 0)
1055 if (strncmp(match
, "/dev/md/", 8) == 0)
1057 else if (strncmp(match
, "/dev/", 5) == 0)
1061 if (strncmp(name
, "md", 2) == 0 &&
1064 if (strncmp(match
, "md", 2) == 0 &&
1068 return (strcmp(name
, match
) == 0);
1071 int conf_name_is_free(char *name
)
1073 /* Check if this name is already take by an ARRAY entry in
1075 * It can be taken either by a match on devname, name, or
1078 struct mddev_ident
*dev
;
1081 for (dev
= mddevlist
; dev
; dev
= dev
->next
) {
1083 if (dev
->devname
&& devname_matches(name
, dev
->devname
))
1085 if (dev
->name
[0] && devname_matches(name
, dev
->name
))
1087 sprintf(nbuf
, "%d", dev
->super_minor
);
1088 if (dev
->super_minor
!= UnSet
&&
1089 devname_matches(name
, nbuf
))
1095 struct mddev_ident
*conf_match(struct mdinfo
*info
, struct supertype
*st
)
1097 struct mddev_ident
*array_list
, *match
;
1099 char *devname
= NULL
;
1100 array_list
= conf_get_ident(NULL
);
1102 for (; array_list
; array_list
= array_list
->next
) {
1103 if (array_list
->uuid_set
&&
1104 same_uuid(array_list
->uuid
, info
->uuid
, st
->ss
->swapuuid
)
1106 if (verbose
>= 2 && array_list
->devname
)
1107 fprintf(stderr
, Name
1108 ": UUID differs from %s.\n",
1109 array_list
->devname
);
1112 if (array_list
->name
[0] &&
1113 strcasecmp(array_list
->name
, info
->name
) != 0) {
1114 if (verbose
>= 2 && array_list
->devname
)
1115 fprintf(stderr
, Name
1116 ": Name differs from %s.\n",
1117 array_list
->devname
);
1120 if (array_list
->devices
&& devname
&&
1121 !match_oneof(array_list
->devices
, devname
)) {
1122 if (verbose
>= 2 && array_list
->devname
)
1123 fprintf(stderr
, Name
1124 ": Not a listed device for %s.\n",
1125 array_list
->devname
);
1128 if (array_list
->super_minor
!= UnSet
&&
1129 array_list
->super_minor
!= info
->array
.md_minor
) {
1130 if (verbose
>= 2 && array_list
->devname
)
1131 fprintf(stderr
, Name
1132 ": Different super-minor to %s.\n",
1133 array_list
->devname
);
1136 if (!array_list
->uuid_set
&&
1137 !array_list
->name
[0] &&
1138 !array_list
->devices
&&
1139 array_list
->super_minor
== UnSet
) {
1140 if (verbose
>= 2 && array_list
->devname
)
1141 fprintf(stderr
, Name
1142 ": %s doesn't have any identifying information.\n",
1143 array_list
->devname
);
1146 /* FIXME, should I check raid_disks and level too?? */
1150 if (match
->devname
&& array_list
->devname
)
1151 fprintf(stderr
, Name
1152 ": we match both %s and %s - cannot decide which to use.\n",
1153 match
->devname
, array_list
->devname
);
1155 fprintf(stderr
, Name
1156 ": multiple lines in mdadm.conf match\n");