/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
#include <sys/dir.h>
#include <glob.h>
#include <fnmatch.h>
+#include <ctype.h>
+#include <pwd.h>
+#include <grp.h>
/*
* Read the config file
#ifndef CONFFILE
#define CONFFILE "/etc/mdadm.conf"
#endif
+#ifndef CONFFILE2
+/* for Debian compatibility .... */
+#define CONFFILE2 "/etc/mdadm/mdadm.conf"
+#endif
char DefaultConfFile[] = CONFFILE;
-
-char *keywords[] = { "device", "array", "mailaddr", "program", NULL };
+char DefaultAltConfFile[] = CONFFILE2;
+
+enum linetype { Devices, Array, Mailaddr, Mailfrom, Program, CreateDev, Homehost, LTEnd };
+char *keywords[] = {
+ [Devices] = "devices",
+ [Array] = "array",
+ [Mailaddr] = "mailaddr",
+ [Mailfrom] = "mailfrom",
+ [Program] = "program",
+ [CreateDev] = "create",
+ [Homehost] = "homehost",
+ [LTEnd] = NULL
+};
/*
* match_keyword returns an index into the keywords array, or -1 for no match
char *name;
} *cdevlist = NULL;
+mddev_dev_t load_partitions(void)
+{
+ FILE *f = fopen("/proc/partitions", "r");
+ char buf[1024];
+ mddev_dev_t rv = NULL;
+ if (f == NULL) {
+ fprintf(stderr, Name ": cannot open /proc/partitions\n");
+ return NULL;
+ }
+ while (fgets(buf, 1024, f)) {
+ int major, minor;
+ char *name, *mp;
+ mddev_dev_t d;
+
+ buf[1023] = '\0';
+ if (buf[0] != ' ')
+ continue;
+ major = strtoul(buf, &mp, 10);
+ if (mp == buf || *mp != ' ')
+ continue;
+ minor = strtoul(mp, NULL, 10);
+
+ name = map_dev(major, minor, 1);
+
+ d = malloc(sizeof(*d));
+ d->devname = strdup(name);
+ d->next = rv;
+ rv = d;
+ }
+ fclose(f);
+ return rv;
+}
+struct createinfo createinfo = {
+#ifdef DEBIAN
+ .gid = 6, /* disk */
+ .mode = 0660,
+#else
+ .mode = 0600,
+#endif
+};
+
+int parse_auto(char *str, char *msg, int config)
+{
+ int autof;
+ if (str == NULL || *str == 0)
+ autof = 2;
+ else if (strcasecmp(str,"no")==0)
+ autof = 1;
+ else if (strcasecmp(str,"yes")==0)
+ autof = 2;
+ 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);
+ int num = 4;
+ int len;
+ while (e > str && isdigit(e[-1]))
+ e--;
+ if (*e) {
+ num = atoi(e);
+ if (num <= 0) num = 1;
+ }
+ if (e > str && e[-1] == '-')
+ e--;
+ len = e - str;
+ if ((len == 2 && strncasecmp(str,"md",2)==0)) {
+ autof = config ? 5 : 3;
+ } 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)) {
+ autof = 6;
+ } else {
+ fprintf(stderr, Name ": %s arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n"
+ " optionally followed by a number.\n",
+ msg, str);
+ exit(2);
+ }
+ autof |= num << 3;
+ }
+ return autof;
+}
+
+static void createline(char *line)
+{
+ char *w;
+ char *ep;
+
+ 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);
+ else if (strncasecmp(w, "owner=", 6) == 0) {
+ if (w[6] == 0) {
+ fprintf(stderr, Name ": missing owner name\n");
+ continue;
+ }
+ createinfo.uid = strtoul(w+6, &ep, 10);
+ if (*ep != 0) {
+#ifndef STATIC
+ struct passwd *pw;
+ /* must be a name */
+ pw = getpwnam(w+6);
+ if (pw)
+ createinfo.uid = pw->pw_uid;
+ else
+#endif /* STATIC */
+ fprintf(stderr, Name ": 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");
+ continue;
+ }
+ createinfo.gid = strtoul(w+6, &ep, 10);
+ if (*ep != 0) {
+#ifndef STATIC
+ struct group *gr;
+ /* must be a name */
+ gr = getgrnam(w+6);
+ if (gr)
+ createinfo.gid = gr->gr_gid;
+ else
+#endif /* STATIC */
+ fprintf(stderr, Name ": 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");
+ continue;
+ }
+ createinfo.mode = strtoul(w+5, &ep, 8);
+ if (*ep != 0) {
+ createinfo.mode = 0600;
+ fprintf(stderr, Name ": unrecognised CREATE mode %s\n",
+ w+5);
+ }
+ } else {
+ fprintf(stderr, Name ": unrecognised word on CREATE line: %s\n",
+ w);
+ }
+ }
+}
void devline(char *line)
{
struct conf_dev *cd;
for (w=dl_next(line); w != line; w=dl_next(w)) {
- if (w[0] == '/') {
+ if (w[0] == '/' || strcasecmp(w, "partitions") == 0) {
cd = malloc(sizeof(*cd));
cd->name = strdup(w);
cd->next = cdevlist;
mddev_ident_t mi;
mis.uuid_set = 0;
- mis.super_minor = -1;
- mis.level = -10;
- mis.raid_disks = -1;
+ mis.super_minor = UnSet;
+ mis.level = UnSet;
+ mis.raid_disks = UnSet;
+ mis.spare_disks = 0;
mis.devices = NULL;
mis.devname = NULL;
mis.spare_group = NULL;
+ mis.autof = 0;
+ mis.next = NULL;
+ mis.st = NULL;
+ 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] == '/') {
fprintf(stderr, Name ": bad uuid: %s\n", w);
}
} else if (strncasecmp(w, "super-minor=", 12)==0 ) {
- if (mis.super_minor >= 0)
+ if (mis.super_minor != UnSet)
fprintf(stderr, Name ": only specify super-minor once, %s ignored.\n",
w);
else {
if (w[12]==0 || endptr[0]!=0 || mis.super_minor < 0) {
fprintf(stderr, Name ": invalid super-minor number: %s\n",
w);
- mis.super_minor = -1;
+ mis.super_minor = UnSet;
}
}
+ } else if (strncasecmp(w, "name=", 5)==0) {
+ if (mis.name[0])
+ fprintf(stderr, Name ": 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
+ 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",
+ w);
+ else
+ mis.bitmap_file = w+7;
+
} 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",
mis.level = map_name(pers, w+6);
} else if (strncasecmp(w, "disks=", 6) == 0 ) {
/* again, for compat */
- mis.raid_disks = atoi(w+6);
+ mis.raid_disks = atoi(w+6);
} else if (strncasecmp(w, "num-devices=", 12) == 0 ) {
/* again, for compat */
- mis.raid_disks = atoi(w+12);
+ 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);
+ } 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);
+
+ if (!mis.st)
+ fprintf(stderr, Name ": 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);
} else {
fprintf(stderr, Name ": unrecognised word on ARRAY line: %s\n",
w);
}
}
if (mis.devname == NULL)
- fprintf(stderr, Name ": ARRAY line with a device\n");
- else if (mis.uuid_set == 0 && mis.devices == NULL && mis.super_minor < 0)
+ 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);
else {
mi = malloc(sizeof(*mi));
}
}
+static char *alert_mail_from = NULL;
+void mailfromline(char *line)
+{
+ char *w;
+
+ for (w=dl_next(line); w != line ; w=dl_next(w)) {
+ if (alert_mail_from == NULL)
+ alert_mail_from = strdup(w);
+ else {
+ char *t= NULL;
+ asprintf(&t, "%s %s", alert_mail_from, w);
+ free(alert_mail_from);
+ alert_mail_from = t;
+ }
+ }
+}
+
static char *alert_program = NULL;
void programline(char *line)
}
}
+static char *home_host = NULL;
+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);
+ }
+}
+
int loaded = 0;
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");
- if (f ==NULL)
+ /* 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))) {
switch(match_keyword(line)) {
- case 0: /* DEVICE */
+ case Devices:
devline(line);
break;
- case 1: /* ARRAY */
+ case Array:
arrayline(line);
break;
- case 2: /* MAIL */
+ case Mailaddr:
mailline(line);
break;
- case 3: /* PROGRAM */
+ case Mailfrom:
+ mailfromline(line);
+ break;
+ case Program:
programline(line);
break;
+ case CreateDev:
+ createline(line);
+ break;
+ case Homehost:
+ homehostline(line);
+ break;
default:
fprintf(stderr, Name ": Unknown keyword %s\n", line);
}
free_line(line);
}
+ fclose(f);
/* printf("got file\n"); */
}
return alert_email;
}
+char *conf_get_mailfrom(char *conffile)
+{
+ load_conffile(conffile);
+ return alert_mail_from;
+}
+
char *conf_get_program(char *conffile)
{
load_conffile(conffile);
return alert_program;
}
+char *conf_get_homehost(char *conffile)
+{
+ load_conffile(conffile);
+ return home_host;
+}
+
+struct createinfo *conf_get_create_info(char *conffile)
+{
+ load_conffile(conffile);
+ return &createinfo;
+}
mddev_ident_t conf_get_ident(char *conffile, char *dev)
{
struct conf_dev *cd;
int flags = 0;
static mddev_dev_t dlist = NULL;
- int i;
+ unsigned int i;
while (dlist) {
mddev_dev_t t = dlist;
}
load_conffile(conffile);
-
+
+ if (cdevlist == NULL)
+ /* default to 'partitions */
+ dlist = load_partitions();
+
for (cd=cdevlist; cd; cd=cd->next) {
- glob(cd->name, flags, NULL, &globbuf);
- flags |= GLOB_APPEND;
+ if (strcasecmp(cd->name, "partitions")==0 && dlist == NULL)
+ dlist = load_partitions();
+ else {
+ glob(cd->name, flags, NULL, &globbuf);
+ flags |= GLOB_APPEND;
+ }
}
if (flags & GLOB_APPEND) {
for (i=0; i<globbuf.gl_pathc; i++) {