/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Neil Brown
- * Email: <neilb@cse.unsw.edu.au>
- * Paper: Neil Brown
- * School of Computer Science and Engineering
- * The University of New South Wales
- * Sydney, 2052
- * Australia
+ * Email: <neilb@suse.de>
*/
#include "mdadm.h"
* with a key word, and not be indented, or must start with a
* non-key-word and must be indented.
*
- * Keywords are DEVICE and ARRAY
+ * Keywords are DEVICE and ARRAY ... and several others.
* DEV{ICE} introduces some devices that might contain raid components.
* e.g.
* DEV style=0 /dev/sda* /dev/hd*
* but may not wrap over lines
*
*/
+#ifndef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
+#endif
#ifndef CONFFILE
#define CONFFILE "/etc/mdadm.conf"
#define CONFFILE2 "/etc/mdadm/mdadm.conf"
#endif
char DefaultConfFile[] = CONFFILE;
+char DefaultConfDir[] = CONFFILE ".d";
char DefaultAltConfFile[] = CONFFILE2;
+char DefaultAltConfDir[] = CONFFILE2 ".d";
-enum linetype { Devices, Array, Mailaddr, Mailfrom, Program, CreateDev, Homehost, LTEnd };
+enum linetype { Devices, Array, Mailaddr, Mailfrom, Program, CreateDev,
+ Homehost, HomeCluster, AutoMode, Policy, PartPolicy, LTEnd };
char *keywords[] = {
[Devices] = "devices",
[Array] = "array",
[Program] = "program",
[CreateDev]= "create",
[Homehost] = "homehost",
+ [HomeCluster] = "homecluster",
+ [AutoMode] = "auto",
+ [Policy] = "policy",
+ [PartPolicy]="part-policy",
[LTEnd] = NULL
};
int len = strlen(word);
int n;
- if (len < 3) return -1;
- for (n=0; keywords[n]; n++) {
- if (strncasecmp(word, keywords[n], len)==0)
+ if (len < 3)
+ return -1;
+ for (n = 0; keywords[n]; n++) {
+ if (strncasecmp(word, keywords[n], len) == 0)
return n;
}
- return -1;
-}
-
-/* conf_word gets one word from the conf file.
- * if "allow_key", then accept words at the start of a line,
- * otherwise stop when such a word is found.
- * We assume that the file pointer is at the end of a word, so the
- * next character is a space, or a newline. If not, it is the start of a line.
- */
-
-char *conf_word(FILE *file, int allow_key)
-{
- int wsize = 100;
- int len = 0;
- int c;
- int quote;
- int wordfound = 0;
- char *word = malloc(wsize);
-
- if (!word) abort();
-
- while (wordfound==0) {
- /* at the end of a word.. */
- c = getc(file);
- if (c == '#')
- while (c != EOF && c != '\n')
- c = getc(file);
- if (c == EOF) break;
- if (c == '\n') continue;
-
- if (c != ' ' && c != '\t' && ! allow_key) {
- ungetc(c, file);
- break;
- }
- /* looks like it is safe to get a word here, if there is one */
- quote = 0;
- /* first, skip any spaces */
- while (c == ' ' || c == '\t')
- c = getc(file);
- if (c != EOF && c != '\n' && c != '#') {
- /* we really have a character of a word, so start saving it */
- while (c != EOF && c != '\n' && (quote || (c!=' ' && c != '\t'))) {
- wordfound = 1;
- if (quote && c == quote) quote = 0;
- else if (quote == 0 && (c == '\'' || c == '"'))
- quote = c;
- else {
- if (len == wsize-1) {
- wsize += 100;
- word = realloc(word, wsize);
- if (!word) abort();
- }
- word[len++] = c;
- }
- c = getc(file);
- /* Hack for broken kernels (2.6.14-.24) that put
- * "active(auto-read-only)"
- * in /proc/mdstat instead of
- * "active (auto-read-only)"
- */
- if (c == '(' && len >= 6
- && strncmp(word+len-6, "active", 6) == 0)
- c = ' ';
- }
- }
- if (c != EOF) ungetc(c, file);
- }
- word[len] = 0;
-
- /* Further HACK for broken kernels.. 2.6.14-2.6.24 */
- if (strcmp(word, "auto-read-only)") == 0)
- strcpy(word, "(auto-read-only)");
-
-/* printf("word is <%s>\n", word); */
- if (!wordfound) {
- free(word);
- word = NULL;
- }
- return word;
-}
-
-/*
- * conf_line reads one logical line from the conffile.
- * It skips comments and continues until it finds a line that starts
- * with a non blank/comment. This character is pushed back for the next call
- * A doubly linked list of words is returned.
- * the first word will be a keyword. Other words will have had quotes removed.
- */
-
-char *conf_line(FILE *file)
-{
- char *w;
- char *list;
-
- w = conf_word(file, 1);
- if (w == NULL) return NULL;
-
- list = dl_strdup(w);
- free(w);
- dl_init(list);
-
- while ((w = conf_word(file,0))){
- char *w2 = dl_strdup(w);
- free(w);
- dl_add(list, w2);
- }
-/* printf("got a line\n");*/
- return list;
-}
-void free_line(char *line)
-{
- char *w;
- for (w=dl_next(line); w != line; w=dl_next(line)) {
- dl_del(w);
- dl_free(w);
- }
- dl_free(line);
+ return -1;
}
-
struct conf_dev {
- struct conf_dev *next;
- char *name;
+ struct conf_dev *next;
+ char *name;
} *cdevlist = NULL;
-mddev_dev_t load_partitions(void)
+struct mddev_dev *load_partitions(void)
{
FILE *f = fopen("/proc/partitions", "r");
char buf[1024];
- mddev_dev_t rv = NULL;
+ struct mddev_dev *rv = NULL;
+
if (f == NULL) {
- fprintf(stderr, Name ": cannot open /proc/partitions\n");
+ pr_err("cannot open /proc/partitions\n");
return NULL;
}
while (fgets(buf, 1024, f)) {
int major, minor;
char *name, *mp;
- mddev_dev_t d;
+ struct mddev_dev *d;
buf[1023] = '\0';
if (buf[0] != ' ')
name = map_dev(major, minor, 1);
if (!name)
continue;
- d = malloc(sizeof(*d));
- d->devname = strdup(name);
+ d = xcalloc(1, sizeof(*d));
+ d->devname = xstrdup(name);
d->next = rv;
- d->used = 0;
rv = d;
}
fclose(f);
return rv;
}
+struct mddev_dev *load_containers(void)
+{
+ struct mdstat_ent *mdstat = mdstat_read(0, 0);
+ struct mdstat_ent *ent;
+ struct mddev_dev *d;
+ struct mddev_dev *rv = NULL;
+ struct map_ent *map = NULL, *me;
+
+ if (!mdstat)
+ return NULL;
+
+ for (ent = mdstat; ent; ent = ent->next)
+ if (ent->metadata_version &&
+ strncmp(ent->metadata_version, "external:", 9) == 0 &&
+ !is_subarray(&ent->metadata_version[9])) {
+ d = xcalloc(1, sizeof(*d));
+ me = map_by_devnm(&map, ent->devnm);
+ if (me)
+ d->devname = xstrdup(me->path);
+ else if (asprintf(&d->devname, "/dev/%s", ent->devnm) < 0) {
+ free(d);
+ continue;
+ }
+ d->next = rv;
+ rv = d;
+ }
+ free_mdstat(mdstat);
+ map_free(map);
+
+ return rv;
+}
+
struct createinfo createinfo = {
.autof = 2, /* by default, create devices with standard names */
.symlinks = 1,
+ .names = 0, /* By default, stick with numbered md devices. */
+ .bblist = 1, /* Use a bad block list by default */
#ifdef DEBIAN
.gid = 6, /* disk */
.mode = 0660,
int autof;
if (str == NULL || *str == 0)
autof = 2;
- else if (strcasecmp(str,"no")==0)
+ else if (strcasecmp(str, "no") == 0)
autof = 1;
- else if (strcasecmp(str,"yes")==0)
+ else if (strcasecmp(str, "yes") == 0)
autof = 2;
- else if (strcasecmp(str,"md")==0)
- autof = config?5:3;
+ else if (strcasecmp(str, "md") == 0)
+ autof = config ? 5:3;
else {
/* There might be digits, and maybe a hypen, at the end */
char *e = str + strlen(str);
e--;
if (*e) {
num = atoi(e);
- if (num <= 0) num = 1;
+ if (num <= 0)
+ num = 1;
}
if (e > str && e[-1] == '-')
e--;
len = e - str;
- if ((len == 2 && strncasecmp(str,"md",2)==0)) {
+ if ((len == 2 && strncasecmp(str, "md", 2) == 0)) {
autof = config ? 5 : 3;
- } else if ((len == 3 && strncasecmp(str,"yes",3)==0)) {
+ } else if ((len == 3 && strncasecmp(str, "yes", 3) == 0)) {
autof = 2;
- } else if ((len == 3 && strncasecmp(str,"mdp",3)==0)) {
+ } else if ((len == 3 && strncasecmp(str, "mdp", 3) == 0)) {
autof = config ? 6 : 4;
- } else if ((len == 1 && strncasecmp(str,"p",1)==0) ||
- (len >= 4 && strncasecmp(str,"part",4)==0)) {
+ } else if ((len == 1 && strncasecmp(str, "p", 1) == 0) ||
+ (len >= 4 && strncasecmp(str, "part", 4) == 0)) {
autof = 6;
} else {
- fprintf(stderr, Name ": %s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n"
+ pr_err("%s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n"
" optionally followed by a number.\n",
msg, str);
exit(2);
char *w;
char *ep;
- for (w=dl_next(line); w!=line; w=dl_next(w)) {
+ for (w = dl_next(line); w != line; w = dl_next(w)) {
if (strncasecmp(w, "auto=", 5) == 0)
- createinfo.autof = parse_auto(w+5, "auto=", 1);
+ createinfo.autof = parse_auto(w + 5, "auto=", 1);
else if (strncasecmp(w, "owner=", 6) == 0) {
if (w[6] == 0) {
- fprintf(stderr, Name ": missing owner name\n");
+ pr_err("missing owner name\n");
continue;
}
- createinfo.uid = strtoul(w+6, &ep, 10);
+ createinfo.uid = strtoul(w + 6, &ep, 10);
if (*ep != 0) {
struct passwd *pw;
/* must be a name */
- pw = getpwnam(w+6);
+ pw = getpwnam(w + 6);
if (pw)
createinfo.uid = pw->pw_uid;
else
- fprintf(stderr, Name ": CREATE user %s not found\n", w+6);
+ pr_err("CREATE user %s not found\n",
+ w + 6);
}
} else if (strncasecmp(w, "group=", 6) == 0) {
if (w[6] == 0) {
- fprintf(stderr, Name ": missing group name\n");
+ pr_err("missing group name\n");
continue;
}
- createinfo.gid = strtoul(w+6, &ep, 10);
+ createinfo.gid = strtoul(w + 6, &ep, 10);
if (*ep != 0) {
struct group *gr;
/* must be a name */
- gr = getgrnam(w+6);
+ gr = getgrnam(w + 6);
if (gr)
createinfo.gid = gr->gr_gid;
else
- fprintf(stderr, Name ": CREATE group %s not found\n", w+6);
+ pr_err("CREATE group %s not found\n",
+ w + 6);
}
} else if (strncasecmp(w, "mode=", 5) == 0) {
if (w[5] == 0) {
- fprintf(stderr, Name ": missing CREATE mode\n");
+ pr_err("missing CREATE mode\n");
continue;
}
- createinfo.mode = strtoul(w+5, &ep, 8);
+ createinfo.mode = strtoul(w + 5, &ep, 8);
if (*ep != 0) {
createinfo.mode = 0600;
- fprintf(stderr, Name ": unrecognised CREATE mode %s\n",
- w+5);
+ pr_err("unrecognised CREATE mode %s\n",
+ w + 5);
}
} else if (strncasecmp(w, "metadata=", 9) == 0) {
/* style of metadata to use by default */
int i;
- for (i=0; superlist[i] && !createinfo.supertype; i++)
- createinfo.supertype =
- superlist[i]->match_metadata_desc(w+9);
+ for (i = 0; superlist[i] && !createinfo.supertype; i++)
+ createinfo.supertype = superlist[i]->match_metadata_desc(w + 9);
if (!createinfo.supertype)
- fprintf(stderr, Name ": metadata format %s unknown, ignoring\n",
+ pr_err("metadata format %s unknown, ignoring\n",
w+9);
} else if (strncasecmp(w, "symlinks=yes", 12) == 0)
createinfo.symlinks = 1;
else if (strncasecmp(w, "symlinks=no", 11) == 0)
createinfo.symlinks = 0;
+ else if (strncasecmp(w, "names=yes", 12) == 0)
+ createinfo.names = 1;
+ else if (strncasecmp(w, "names=no", 11) == 0)
+ createinfo.names = 0;
+ else if (strncasecmp(w, "bbl=no", 11) == 0)
+ createinfo.bblist = 0;
+ else if (strncasecmp(w, "bbl=yes", 11) == 0)
+ createinfo.bblist = 1;
else {
- fprintf(stderr, Name ": unrecognised word on CREATE line: %s\n",
+ pr_err("unrecognised word on CREATE line: %s\n",
w);
}
}
char *w;
struct conf_dev *cd;
- for (w=dl_next(line); w != line; w=dl_next(w)) {
- if (w[0] == '/' || strcasecmp(w, "partitions") == 0) {
- cd = malloc(sizeof(*cd));
- cd->name = strdup(w);
+ for (w = dl_next(line); w != line; w = dl_next(w)) {
+ if (w[0] == '/' || strcasecmp(w, "partitions") == 0 ||
+ strcasecmp(w, "containers") == 0) {
+ cd = xmalloc(sizeof(*cd));
+ cd->name = xstrdup(w);
cd->next = cdevlist;
cdevlist = cd;
} else {
- fprintf(stderr, Name ": unreconised word on DEVICE line: %s\n",
- w);
+ pr_err("unreconised word on DEVICE line: %s\n", w);
}
}
}
-mddev_ident_t mddevlist = NULL;
-mddev_ident_t *mddevlp = &mddevlist;
+struct mddev_ident *mddevlist = NULL;
+struct mddev_ident **mddevlp = &mddevlist;
+
+static int is_number(char *w)
+{
+ /* check if there are 1 or more digits and nothing else */
+ int digits = 0;
+ while (*w && isdigit(*w)) {
+ digits++;
+ w++;
+ }
+ return (digits && ! *w);
+}
void arrayline(char *line)
{
char *w;
- struct mddev_ident_s mis;
- mddev_ident_t mi;
+ struct mddev_ident mis;
+ struct mddev_ident *mi;
mis.uuid_set = 0;
mis.super_minor = UnSet;
mis.bitmap_fd = -1;
mis.bitmap_file = NULL;
mis.name[0] = 0;
-
- for (w=dl_next(line); w!=line; w=dl_next(w)) {
- if (w[0] == '/') {
- if (mis.devname)
- fprintf(stderr, Name ": only give one device per ARRAY line: %s and %s\n",
- mis.devname, w);
- else mis.devname = w;
- } else if (strncasecmp(w, "uuid=", 5)==0 ) {
+ mis.container = NULL;
+ mis.member = NULL;
+
+ for (w = dl_next(line); w != line; w = dl_next(w)) {
+ if (w[0] == '/' || strchr(w, '=') == NULL) {
+ /* This names the device, or is '<ignore>'.
+ * The rules match those in create_mddev.
+ * 'w' must be:
+ * /dev/md/{anything}
+ * /dev/mdNN
+ * /dev/md_dNN
+ * <ignore>
+ * or anything that doesn't start '/' or '<'
+ */
+ if (strcasecmp(w, "<ignore>") == 0 ||
+ strncmp(w, "/dev/md/", 8) == 0 ||
+ (w[0] != '/' && w[0] != '<') ||
+ (strncmp(w, "/dev/md", 7) == 0 &&
+ is_number(w + 7)) ||
+ (strncmp(w, "/dev/md_d", 9) == 0 &&
+ is_number(w + 9))) {
+ /* This is acceptable */;
+ if (mis.devname)
+ pr_err("only give one device per ARRAY line: %s and %s\n",
+ mis.devname, w);
+ else
+ mis.devname = w;
+ }else {
+ pr_err("%s is an invalid name for an md device - ignored.\n", w);
+ }
+ } else if (strncasecmp(w, "uuid=", 5) == 0) {
if (mis.uuid_set)
- fprintf(stderr, Name ": only specify uuid once, %s ignored.\n",
- w);
+ pr_err("only specify uuid once, %s ignored.\n",
+ w);
else {
- if (parse_uuid(w+5, mis.uuid))
+ if (parse_uuid(w + 5, mis.uuid))
mis.uuid_set = 1;
else
- fprintf(stderr, Name ": bad uuid: %s\n", w);
+ pr_err("bad uuid: %s\n", w);
}
- } else if (strncasecmp(w, "super-minor=", 12)==0 ) {
+ } else if (strncasecmp(w, "super-minor=", 12) == 0) {
if (mis.super_minor != UnSet)
- fprintf(stderr, Name ": only specify super-minor once, %s ignored.\n",
+ pr_err("only specify super-minor once, %s ignored.\n",
w);
else {
char *endptr;
- mis.super_minor= strtol(w+12, &endptr, 10);
- if (w[12]==0 || endptr[0]!=0 || mis.super_minor < 0) {
- fprintf(stderr, Name ": invalid super-minor number: %s\n",
- w);
- mis.super_minor = UnSet;
- }
+ int minor = strtol(w + 12, &endptr, 10);
+
+ if (w[12] == 0 || endptr[0] != 0 || minor < 0)
+ pr_err("invalid super-minor number: %s\n",
+ w);
+ else
+ mis.super_minor = minor;
}
- } else if (strncasecmp(w, "name=", 5)==0) {
+ } else if (strncasecmp(w, "name=", 5) == 0) {
if (mis.name[0])
- fprintf(stderr, Name ": only specify name once, %s ignored.\n",
+ pr_err("only specify name once, %s ignored.\n",
w);
- else if (strlen(w+5) > 32)
- fprintf(stderr, Name ": name too long, ignoring %s\n", w);
+ else if (strlen(w + 5) > 32)
+ pr_err("name too long, ignoring %s\n", w);
else
- strcpy(mis.name, w+5);
+ strcpy(mis.name, w + 5);
} else if (strncasecmp(w, "bitmap=", 7) == 0) {
if (mis.bitmap_file)
- fprintf(stderr, Name ": only specify bitmap file once. %s ignored\n",
+ pr_err("only specify bitmap file once. %s ignored\n",
w);
else
- mis.bitmap_file = strdup(w+7);
+ mis.bitmap_file = xstrdup(w + 7);
- } else if (strncasecmp(w, "devices=", 8 ) == 0 ) {
+ } else if (strncasecmp(w, "devices=", 8 ) == 0) {
if (mis.devices)
- fprintf(stderr, Name ": only specify devices once (use a comma separated list). %s ignored\n",
+ pr_err("only specify devices once (use a comma separated list). %s ignored\n",
w);
else
- mis.devices = strdup(w+8);
- } else if (strncasecmp(w, "spare-group=", 12) == 0 ) {
+ mis.devices = xstrdup(w + 8);
+ } else if (strncasecmp(w, "spare-group=", 12) == 0) {
if (mis.spare_group)
- fprintf(stderr, Name ": only specify one spare group per array. %s ignored.\n",
+ pr_err("only specify one spare group per array. %s ignored.\n",
w);
else
- mis.spare_group = strdup(w+12);
+ mis.spare_group = xstrdup(w + 12);
} else if (strncasecmp(w, "level=", 6) == 0 ) {
/* this is mainly for compatability with --brief output */
- mis.level = map_name(pers, w+6);
- } else if (strncasecmp(w, "disks=", 6) == 0 ) {
+ mis.level = map_name(pers, w + 6);
+ } else if (strncasecmp(w, "disks=", 6) == 0) {
/* again, for compat */
- mis.raid_disks = atoi(w+6);
- } else if (strncasecmp(w, "num-devices=", 12) == 0 ) {
+ mis.raid_disks = atoi(w + 6);
+ } else if (strncasecmp(w, "num-devices=", 12) == 0) {
/* again, for compat */
- mis.raid_disks = atoi(w+12);
- } else if (strncasecmp(w, "spares=", 7) == 0 ) {
+ mis.raid_disks = atoi(w + 12);
+ } else if (strncasecmp(w, "spares=", 7) == 0) {
/* for warning if not all spares present */
- mis.spare_disks = atoi(w+7);
+ mis.spare_disks = atoi(w + 7);
} else if (strncasecmp(w, "metadata=", 9) == 0) {
/* style of metadata on the devices. */
int i;
for(i=0; superlist[i] && !mis.st; i++)
- mis.st = superlist[i]->match_metadata_desc(w+9);
+ mis.st = superlist[i]->
+ match_metadata_desc(w + 9);
if (!mis.st)
- fprintf(stderr, Name ": metadata format %s unknown, ignored.\n", w+9);
+ pr_err("metadata format %s unknown, ignored.\n",
+ w + 9);
} else if (strncasecmp(w, "auto=", 5) == 0 ) {
/* whether to create device special files as needed */
- mis.autof = parse_auto(w+5, "auto type", 0);
+ mis.autof = parse_auto(w + 5, "auto type", 0);
+ } else if (strncasecmp(w, "member=", 7) == 0) {
+ /* subarray within a container */
+ mis.member = xstrdup(w + 7);
+ } else if (strncasecmp(w, "container=", 10) == 0) {
+ /* The container holding this subarray.
+ * Either a device name or a uuid */
+ mis.container = xstrdup(w + 10);
} else {
- fprintf(stderr, Name ": unrecognised word on ARRAY line: %s\n",
+ pr_err("unrecognised word on ARRAY line: %s\n",
w);
}
}
- if (mis.devname == NULL)
- fprintf(stderr, Name ": ARRAY line with no device\n");
- else if (mis.uuid_set == 0 && mis.devices == NULL && mis.super_minor == UnSet && mis.name[0] == 0)
- fprintf(stderr, Name ": ARRAY line %s has no identity information.\n", mis.devname);
+ if (mis.uuid_set == 0 && mis.devices == NULL &&
+ mis.super_minor == UnSet && mis.name[0] == 0 &&
+ (mis.container == NULL || mis.member == NULL))
+ pr_err("ARRAY line %s has no identity information.\n",
+ mis.devname);
else {
- mi = malloc(sizeof(*mi));
+ mi = xmalloc(sizeof(*mi));
*mi = mis;
- mi->devname = strdup(mis.devname);
+ mi->devname = mis.devname ? xstrdup(mis.devname) : NULL;
mi->next = NULL;
*mddevlp = mi;
mddevlp = &mi->next;
{
char *w;
- for (w=dl_next(line); w != line ; w=dl_next(w)) {
+ for (w = dl_next(line); w != line; w = dl_next(w))
if (alert_email == NULL)
- alert_email = strdup(w);
- else
- fprintf(stderr, Name ": excess address on MAIL line: %s - ignored\n",
- w);
- }
+ alert_email = xstrdup(w);
}
static char *alert_mail_from = NULL;
{
char *w;
- for (w=dl_next(line); w != line ; w=dl_next(w)) {
+ for (w = dl_next(line); w != line; w = dl_next(w)) {
if (alert_mail_from == NULL)
- alert_mail_from = strdup(w);
+ alert_mail_from = xstrdup(w);
else {
- char *t= NULL;
- xasprintf(&t, "%s %s", alert_mail_from, w);
- free(alert_mail_from);
- alert_mail_from = t;
+ char *t = NULL;
+
+ if (xasprintf(&t, "%s %s", alert_mail_from, w) > 0) {
+ free(alert_mail_from);
+ alert_mail_from = t;
+ }
}
}
}
-
static char *alert_program = NULL;
void programline(char *line)
{
char *w;
- for (w=dl_next(line); w != line ; w=dl_next(w)) {
+ for (w = dl_next(line); w != line; w = dl_next(w))
if (alert_program == NULL)
- alert_program = strdup(w);
- else
- fprintf(stderr, Name ": excess program on PROGRAM line: %s - ignored\n",
- w);
- }
+ alert_program = xstrdup(w);
}
static char *home_host = NULL;
+static int require_homehost = 1;
void homehostline(char *line)
{
char *w;
- for (w=dl_next(line); w != line ; w=dl_next(w)) {
- if (home_host == NULL)
- home_host = strdup(w);
- else
- fprintf(stderr, Name ": excess host name on HOMEHOST line: %s - ignored\n",
- w);
+ for (w = dl_next(line); w != line; w = dl_next(w)) {
+ if (strcasecmp(w, "<ignore>") == 0)
+ require_homehost = 0;
+ else if (home_host == NULL) {
+ if (strcasecmp(w, "<none>") == 0)
+ home_host = xstrdup("");
+ else
+ home_host = xstrdup(w);
+ }
}
}
+static char *home_cluster = NULL;
+void homeclusterline(char *line)
+{
+ char *w;
+
+ for (w = dl_next(line); w != line; w = dl_next(w)) {
+ if (home_cluster == NULL) {
+ if (strcasecmp(w, "<none>") == 0)
+ home_cluster = xstrdup("");
+ else
+ home_cluster = xstrdup(w);
+ }
+ }
+}
+
+char auto_yes[] = "yes";
+char auto_no[] = "no";
+char auto_homehost[] = "homehost";
+
+static int auto_seen = 0;
+void autoline(char *line)
+{
+ char *w;
+ char *seen;
+ int super_cnt;
+ char *dflt = auto_yes;
+ int homehost = 0;
+ int i;
+
+ if (auto_seen)
+ return;
+ auto_seen = 1;
+
+ /*
+ * Parse the 'auto' line creating policy statements for the 'auto'
+ * policy.
+ *
+ * The default is 'yes' but the 'auto' line might over-ride that.
+ * Words in the line are processed in order with the first
+ * match winning.
+ * word can be:
+ * +version - that version can be assembled
+ * -version - that version cannot be auto-assembled
+ * yes or +all - any other version can be assembled
+ * no or -all - no other version can be assembled.
+ * homehost - any array associated by 'homehost' to this
+ * host can be assembled.
+ *
+ * Thus:
+ * +ddf -0.90 homehost -all
+ * will auto-assemble any ddf array, no 0.90 array, and
+ * any other array (imsm, 1.x) if and only if it is identified
+ * as belonging to this host.
+ *
+ * We translate that to policy by creating 'auto=yes' when we see
+ * a '+version' line, 'auto=no' if we see '-version' before 'homehost',
+ * or 'auto=homehost' if we see '-version' after 'homehost'.
+ * When we see yes, no, +all or -all we stop and any version that hasn't
+ * been seen gets an appropriate auto= entry.
+ */
+
+ /*
+ * If environment variable MDADM_CONF_AUTO is defined, then
+ * it is prepended to the auto line. This allow a script
+ * to easily disable some metadata types.
+ */
+ w = getenv("MDADM_CONF_AUTO");
+ if (w && *w) {
+ char *l = xstrdup(w);
+ char *head = line;
+ w = strtok(l, " \t");
+ while (w) {
+ char *nw = dl_strdup(w);
+ dl_insert(head, nw);
+ head = nw;
+ w = strtok(NULL, " \t");
+ }
+ free(l);
+ }
+
+ for (super_cnt = 0; superlist[super_cnt]; super_cnt++)
+ ;
+ seen = xcalloc(super_cnt, 1);
+
+ for (w = dl_next(line); w != line; w = dl_next(w)) {
+ char *val;
+
+ if (strcasecmp(w, "yes") == 0) {
+ dflt = auto_yes;
+ break;
+ }
+ if (strcasecmp(w, "no") == 0) {
+ if (homehost)
+ dflt = auto_homehost;
+ else
+ dflt = auto_no;
+ break;
+ }
+ if (strcasecmp(w, "homehost") == 0) {
+ homehost = 1;
+ continue;
+ }
+ if (w[0] == '+')
+ val = auto_yes;
+ else if (w[0] == '-') {
+ if (homehost)
+ val = auto_homehost;
+ else
+ val = auto_no;
+ } else
+ continue;
+
+ if (strcasecmp(w + 1, "all") == 0) {
+ dflt = val;
+ break;
+ }
+ for (i = 0; superlist[i]; i++) {
+ const char *version = superlist[i]->name;
+ if (strcasecmp(w + 1, version) == 0)
+ break;
+ /* 1 matches 1.x, 0 matches 0.90 */
+ if (version[1] == '.' && strlen(w + 1) == 1 &&
+ w[1] == version[0])
+ break;
+ /* 1.anything matches 1.x */
+ if (strcmp(version, "1.x") == 0 &&
+ strncmp(w + 1, "1.", 2) == 0)
+ break;
+ }
+ if (superlist[i] == NULL)
+ /* ignore this word */
+ continue;
+ if (seen[i])
+ /* already know about this metadata */
+ continue;
+ policy_add(rule_policy, pol_auto, val, pol_metadata,
+ superlist[i]->name, NULL);
+ seen[i] = 1;
+ }
+ for (i = 0; i < super_cnt; i++)
+ if (!seen[i])
+ policy_add(rule_policy, pol_auto, dflt, pol_metadata,
+ superlist[i]->name, NULL);
+
+ free(seen);
+}
int loaded = 0;
conffile = file;
}
-void load_conffile(void)
+void conf_file(FILE *f)
{
- FILE *f;
char *line;
-
- if (loaded) return;
- if (conffile == NULL)
- conffile = DefaultConfFile;
-
- if (strcmp(conffile, "none") == 0) {
- loaded = 1;
- return;
- }
- if (strcmp(conffile, "partitions")==0) {
- char *list = dl_strdup("DEV");
- dl_init(list);
- dl_add(list, dl_strdup("partitions"));
- devline(list);
- free_line(list);
- loaded = 1;
- return;
- }
- f = fopen(conffile, "r");
- /* Debian chose to relocate mdadm.conf into /etc/mdadm/.
- * To allow Debian users to compile from clean source and still
- * have a working mdadm, we read /etc/mdadm/mdadm.conf
- * if /etc/mdadm.conf doesn't exist
- */
- if (f == NULL &&
- conffile == DefaultConfFile) {
- f = fopen(DefaultAltConfFile, "r");
- if (f)
- conffile = DefaultAltConfFile;
- }
- if (f == NULL)
- return;
-
- loaded = 1;
- while ((line=conf_line(f))) {
+ while ((line = conf_line(f))) {
switch(match_keyword(line)) {
case Devices:
devline(line);
case Homehost:
homehostline(line);
break;
+ case HomeCluster:
+ homeclusterline(line);
+ break;
+ case AutoMode:
+ autoline(line);
+ break;
+ case Policy:
+ policyline(line, rule_policy);
+ break;
+ case PartPolicy:
+ policyline(line, rule_part);
+ break;
default:
- fprintf(stderr, Name ": Unknown keyword %s\n", line);
+ pr_err("Unknown keyword %s\n", line);
}
free_line(line);
}
+}
- fclose(f);
+struct fname {
+ struct fname *next;
+ char name[];
+};
+
+void conf_file_or_dir(FILE *f)
+{
+ struct stat st;
+ DIR *dir;
+ struct dirent *dp;
+ struct fname *list = NULL;
+
+ fstat(fileno(f), &st);
+ if (S_ISREG(st.st_mode))
+ conf_file(f);
+ else if (!S_ISDIR(st.st_mode))
+ return;
+#if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
+ dir = fdopendir(fileno(f));
+ if (!dir)
+ return;
+ while ((dp = readdir(dir)) != NULL) {
+ int l;
+ struct fname *fn, **p;
+ if (dp->d_ino == 0)
+ continue;
+ if (dp->d_name[0] == '.')
+ continue;
+ l = strlen(dp->d_name);
+ if (l < 6 || strcmp(dp->d_name + l - 5, ".conf") != 0)
+ continue;
+ fn = xmalloc(sizeof(*fn) + l + 1);
+ strcpy(fn->name, dp->d_name);
+ for (p = &list;
+ *p && strcmp((*p)->name, fn->name) < 0;
+ p = & (*p)->next)
+ ;
+ fn->next = *p;
+ *p = fn;
+ }
+ while (list) {
+ int fd;
+ FILE *f2;
+ struct fname *fn = list;
+ list = list->next;
+ fd = openat(fileno(f), fn->name, O_RDONLY);
+ free(fn);
+ if (fd < 0)
+ continue;
+ f2 = fdopen(fd, "r");
+ if (!f2) {
+ close(fd);
+ continue;
+ }
+ conf_file(f2);
+ fclose(f2);
+ }
+ closedir(dir);
+#endif
+}
+
+void load_conffile(void)
+{
+ FILE *f;
+ char *confdir = NULL;
+ char *head;
-/* printf("got file\n"); */
+ if (loaded)
+ return;
+ if (conffile == NULL) {
+ conffile = DefaultConfFile;
+ confdir = DefaultConfDir;
+ }
+
+ if (strcmp(conffile, "partitions") == 0) {
+ char *list = dl_strdup("DEV");
+ dl_init(list);
+ dl_add(list, dl_strdup("partitions"));
+ devline(list);
+ free_line(list);
+ } else if (strcmp(conffile, "none") != 0) {
+ f = fopen(conffile, "r");
+ /* Debian chose to relocate mdadm.conf into /etc/mdadm/.
+ * To allow Debian users to compile from clean source and still
+ * have a working mdadm, we read /etc/mdadm/mdadm.conf
+ * if /etc/mdadm.conf doesn't exist
+ */
+ if (f == NULL && conffile == DefaultConfFile) {
+ f = fopen(DefaultAltConfFile, "r");
+ if (f) {
+ conffile = DefaultAltConfFile;
+ confdir = DefaultAltConfDir;
+ }
+ }
+ if (f) {
+ conf_file_or_dir(f);
+ fclose(f);
+ }
+ if (confdir) {
+ f = fopen(confdir, "r");
+ if (f) {
+ conf_file_or_dir(f);
+ fclose(f);
+ }
+ }
+ }
+ /* If there was no AUTO line, process an empty line
+ * now so that the MDADM_CONF_AUTO env var gets processed.
+ */
+ head = dl_strdup("AUTO");
+ dl_init(head);
+ autoline(head);
+ free_line(head);
+
+ loaded = 1;
}
char *conf_get_mailaddr(void)
return alert_program;
}
-char *conf_get_homehost(void)
+char *conf_get_homehost(int *require_homehostp)
{
load_conffile();
+ if (require_homehostp)
+ *require_homehostp = require_homehost;
return home_host;
}
+char *conf_get_homecluster(void)
+{
+ load_conffile();
+ return home_cluster;
+}
+
struct createinfo *conf_get_create_info(void)
{
load_conffile();
return &createinfo;
}
-mddev_ident_t conf_get_ident(char *dev)
+struct mddev_ident *conf_get_ident(char *dev)
{
- mddev_ident_t rv;
+ struct mddev_ident *rv;
load_conffile();
rv = mddevlist;
- while (dev && rv && strcmp(dev, rv->devname)!=0)
+ while (dev && rv && (rv->devname == NULL ||
+ !devname_matches(dev, rv->devname)))
rv = rv->next;
return rv;
}
-mddev_dev_t conf_get_devs()
+static void append_dlist(struct mddev_dev **dlp, struct mddev_dev *list)
+{
+ while (*dlp)
+ dlp = &(*dlp)->next;
+ *dlp = list;
+}
+
+struct mddev_dev *conf_get_devs()
{
glob_t globbuf;
struct conf_dev *cd;
int flags = 0;
- static mddev_dev_t dlist = NULL;
+ static struct mddev_dev *dlist = NULL;
unsigned int i;
while (dlist) {
- mddev_dev_t t = dlist;
+ struct mddev_dev *t = dlist;
dlist = dlist->next;
free(t->devname);
free(t);
load_conffile();
- if (cdevlist == NULL)
- /* default to 'partitions */
+ if (cdevlist == NULL) {
+ /* default to 'partitions' and 'containers' */
dlist = load_partitions();
+ append_dlist(&dlist, load_containers());
+ }
- for (cd=cdevlist; cd; cd=cd->next) {
- if (strcasecmp(cd->name, "partitions")==0 && dlist == NULL)
- dlist = load_partitions();
+ for (cd = cdevlist; cd; cd = cd->next) {
+ if (strcasecmp(cd->name, "partitions") == 0)
+ append_dlist(&dlist, load_partitions());
+ else if (strcasecmp(cd->name, "containers") == 0)
+ append_dlist(&dlist, load_containers());
else {
glob(cd->name, flags, NULL, &globbuf);
flags |= GLOB_APPEND;
}
}
if (flags & GLOB_APPEND) {
- for (i=0; i<globbuf.gl_pathc; i++) {
- mddev_dev_t t = malloc(sizeof(*t));
- t->devname = strdup(globbuf.gl_pathv[i]);
+ for (i = 0; i < globbuf.gl_pathc; i++) {
+ struct mddev_dev *t;
+ t = xcalloc(1, sizeof(*t));
+ t->devname = xstrdup(globbuf.gl_pathv[i]);
t->next = dlist;
- t->used = 0;
dlist = t;
/* printf("one dev is %s\n", t->devname);*/
}
if (cdevlist == NULL)
/* allow anything by default */
return 1;
- for (cd = cdevlist ; cd ; cd = cd->next) {
+ for (cd = cdevlist; cd; cd = cd->next) {
if (strcasecmp(cd->name, "partitions") == 0)
return 1;
if (fnmatch(cd->name, devname, FNM_PATHNAME) == 0)
return 0;
}
+int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost)
+{
+ /* If anyone said 'yes', that sticks.
+ * else if homehost applies, use that
+ * else if there is a 'no', say 'no'.
+ * else 'yes'.
+ */
+ struct dev_policy *p;
+ int no = 0, found_homehost = 0;
+ load_conffile();
+
+ pol = pol_find(pol, pol_auto);
+ pol_for_each(p, pol, version) {
+ if (strcmp(p->value, "yes") == 0)
+ return 1;
+ if (strcmp(p->value, "homehost") == 0)
+ found_homehost = 1;
+ if (strcmp(p->value, "no") == 0)
+ no = 1;
+ }
+ if (is_homehost && found_homehost)
+ return 1;
+ if (no)
+ return 0;
+ return 1;
+}
int match_oneof(char *devices, char *devname)
{
- /* check if one of the comma separated patterns in devices
- * matches devname
- */
-
-
- while (devices && *devices) {
- char patn[1024];
- char *p = devices;
- devices = strchr(devices, ',');
- if (!devices)
- devices = p + strlen(p);
- if (devices-p < 1024) {
- strncpy(patn, p, devices-p);
- patn[devices-p] = 0;
- if (fnmatch(patn, devname, FNM_PATHNAME)==0)
+ /* check if one of the comma separated patterns in devices
+ * matches devname
+ */
+
+ while (devices && *devices) {
+ char patn[1024];
+ char *p = devices;
+ devices = strchr(devices, ',');
+ if (!devices)
+ devices = p + strlen(p);
+ if (devices-p < 1024) {
+ strncpy(patn, p, devices - p);
+ patn[devices-p] = 0;
+ if (fnmatch(patn, devname, FNM_PATHNAME) == 0)
+ return 1;
+ }
+ if (*devices == ',')
+ devices++;
+ }
+ return 0;
+}
+
+int devname_matches(char *name, char *match)
+{
+ /* See if the given array name matches the
+ * given match from config file.
+ *
+ * First strip and /dev/md/ or /dev/, then
+ * see if there might be a numeric match of
+ * mdNN with NN
+ * then just strcmp
+ */
+ if (strncmp(name, "/dev/md/", 8) == 0)
+ name += 8;
+ else if (strncmp(name, "/dev/", 5) == 0)
+ name += 5;
+
+ if (strncmp(match, "/dev/md/", 8) == 0)
+ match += 8;
+ else if (strncmp(match, "/dev/", 5) == 0)
+ match += 5;
+
+ if (strncmp(name, "md", 2) == 0 && isdigit(name[2]))
+ name += 2;
+ if (strncmp(match, "md", 2) == 0 && isdigit(match[2]))
+ match += 2;
+
+ return (strcmp(name, match) == 0);
+}
+
+int conf_name_is_free(char *name)
+{
+ /* Check if this name is already taken by an ARRAY entry in
+ * the config file.
+ * It can be taken either by a match on devname, name, or
+ * even super-minor.
+ */
+ struct mddev_ident *dev;
+
+ load_conffile();
+ for (dev = mddevlist; dev; dev = dev->next) {
+ char nbuf[100];
+ if (dev->devname && devname_matches(name, dev->devname))
+ return 0;
+ if (dev->name[0] && devname_matches(name, dev->name))
+ return 0;
+ sprintf(nbuf, "%d", dev->super_minor);
+ if (dev->super_minor != UnSet && devname_matches(name, nbuf))
+ return 0;
+ }
+ return 1;
+}
+
+struct mddev_ident *conf_match(struct supertype *st,
+ struct mdinfo *info,
+ char *devname,
+ int verbose, int *rvp)
+{
+ struct mddev_ident *array_list, *match;
+ array_list = conf_get_ident(NULL);
+ match = NULL;
+ for (; array_list; array_list = array_list->next) {
+ if (array_list->uuid_set &&
+ same_uuid(array_list->uuid, info->uuid,
+ st->ss->swapuuid) == 0) {
+ if (verbose >= 2 && array_list->devname)
+ pr_err("UUID differs from %s.\n",
+ array_list->devname);
+ continue;
+ }
+ if (array_list->name[0] &&
+ strcasecmp(array_list->name, info->name) != 0) {
+ if (verbose >= 2 && array_list->devname)
+ pr_err("Name differs from %s.\n",
+ array_list->devname);
+ continue;
+ }
+ if (array_list->devices && devname &&
+ !match_oneof(array_list->devices, devname)) {
+ if (verbose >= 2 && array_list->devname)
+ pr_err("Not a listed device for %s.\n",
+ array_list->devname);
+ continue;
+ }
+ if (array_list->super_minor != UnSet &&
+ array_list->super_minor != info->array.md_minor) {
+ if (verbose >= 2 && array_list->devname)
+ pr_err("Different super-minor to %s.\n",
+ array_list->devname);
+ continue;
+ }
+ if (!array_list->uuid_set && !array_list->name[0] &&
+ !array_list->devices && array_list->super_minor == UnSet) {
+ if (verbose >= 2 && array_list->devname)
+ pr_err("%s doesn't have any identifying information.\n",
+ array_list->devname);
+ continue;
+ }
+ /* FIXME, should I check raid_disks and level too?? */
+
+ if (match) {
+ if (verbose >= 0) {
+ if (match->devname && array_list->devname)
+ pr_err("we match both %s and %s - cannot decide which to use.\n",
+ match->devname,
+ array_list->devname);
+ else
+ pr_err("multiple lines in mdadm.conf match\n");
+ }
+ if (rvp)
+ *rvp = 2;
+ match = NULL;
+ break;
+ }
+ match = array_list;
+ }
+ return match;
+}
+
+int conf_verify_devnames(struct mddev_ident *array_list)
+{
+ struct mddev_ident *a1, *a2;
+
+ for (a1 = array_list; a1; a1 = a1->next) {
+ if (!a1->devname)
+ continue;
+ if (strcmp(a1->devname, "<ignore>") == 0)
+ continue;
+ for (a2 = a1->next; a2; a2 = a2->next) {
+ if (!a2->devname)
+ continue;
+ if (strcmp(a1->devname, a2->devname) != 0)
+ continue;
+
+ if (a1->uuid_set && a2->uuid_set) {
+ char nbuf[64];
+ __fname_from_uuid(a1->uuid, 0, nbuf, ':');
+ pr_err("Devices %s and ",
+ nbuf);
+ __fname_from_uuid(a2->uuid, 0, nbuf, ':');
+ fprintf(stderr,
+ "%s have the same name: %s\n",
+ nbuf, a1->devname);
+ } else
+ pr_err("Device %s given twice in config file\n", a1->devname);
return 1;
+ }
}
- if (*devices == ',')
- devices++;
- }
- return 0;
+
+ return 0;
}
projects / thirdparty / mdadm.git / blobdiff