/*
* 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
* The University of New South Wales
* Sydney, 2052
* Australia
+ *
+ * Additions for bitmap and write-behind RAID options, Copyright (C) 2003-2004,
+ * Paul Clements, SteelEye Technology, Inc.
*/
#include "mdadm.h"
#include <ctype.h>
-void make_parts(char *dev, int cnt)
-{
- /* make 'cnt' partition devices for 'dev'
- * We use the major/minor from dev and add 1..cnt
- * If dev ends with a digit, we add "_p%d" else "%d"
- * If the name exists, we use it's owner/mode,
- * else that of dev
- */
- struct stat stb;
- int major, minor;
- int i;
- char *name = malloc(strlen(dev) + 20);
- int dig = isdigit(dev[strlen(dev)-1]);
-
- if (stat(dev, &stb)!= 0)
- return;
- if (!S_ISBLK(stb.st_mode))
- return;
- major = MAJOR(stb.st_rdev);
- minor = MINOR(stb.st_rdev);
- for (i=1; i <= cnt ; i++) {
- struct stat stb2;
- sprintf(name, "%s%s%d", dev, dig?"_p":"", i);
- if (stat(name, &stb2)==0) {
- if (!S_ISBLK(stb2.st_mode))
- continue;
- if (stb2.st_rdev == MKDEV(major, minor+i))
- continue;
- unlink(name);
- } else {
- stb2 = stb;
- }
- mknod(name, S_IFBLK | 0600, MKDEV(major, minor+i));
- chown(name, stb2.st_uid, stb2.st_gid);
- chmod(name, stb2.st_mode & 07777);
- }
-}
-
-/*
- * Open a given md device, and check that it really is one.
- * If 'autof' is given, then we need to create, or recreate, the md device.
- * If the name already exists, and is not a block device, we fail.
- * If it exists and is not an md device, is not the right type (partitioned or not),
- * or is currently in-use, we remove the device, but remember the owner and mode.
- * If it now doesn't exist, we find a few md array and create the device.
- * Default ownership is user=0, group=0 perm=0600
- */
-int open_mddev(char *dev, int autof)
-{
- int mdfd;
- struct stat stb;
- int major = MD_MAJOR;
- int minor;
- int must_remove = 0;
- struct mdstat_ent *mdlist;
- int num;
-
- if (autof) {
- /* autof is set, so we need to check that the name is ok,
- * and possibly create one if not
- */
- stb.st_mode = 0;
- if (lstat(dev, &stb)==0 && ! S_ISBLK(stb.st_mode)) {
- fprintf(stderr, Name ": %s is not a block device.\n",
- dev);
- return -1;
- }
- /* check major number is correct */
- if (autof>0)
- major = get_mdp_major();
- if (stb.st_mode && MAJOR(stb.st_rdev) != major)
- must_remove = 1;
- if (stb.st_mode && !must_remove) {
- mdu_array_info_t array;
- /* looks ok, see if it is available */
- mdfd = open(dev, O_RDWR, 0);
- if (mdfd < 0) {
- fprintf(stderr, Name ": error opening %s: %s\n",
- dev, strerror(errno));
- return -1;
- } else if (md_get_version(mdfd) <= 0) {
- fprintf(stderr, Name ": %s does not appear to be an md device\n",
- dev);
- close(mdfd);
- return -1;
- }
- if (ioctl(mdfd, GET_ARRAY_INFO, &array)==0) {
- /* already active */
- must_remove = 1;
- close(mdfd);
- } else {
- if (autof > 0)
- make_parts(dev, autof);
- return mdfd;
- }
- }
- /* Ok, need to find a minor that is not in use.
- * Easiest to read /proc/mdstat, and hunt through for
- * an unused number
- */
- mdlist = mdstat_read(0);
- for (num= (autof>0)?-1:0 ; ; num+= (autof>2)?-1:1) {
- struct mdstat_ent *me;
- for (me=mdlist; me; me=me->next)
- if (me->devnum == num)
- break;
- if (!me) {
- /* doesn't exist if mdstat.
- * make sure it is new to /dev too
- */
- char *dn;
- if (autof > 0)
- minor = (-1-num) << MdpMinorShift;
- else
- minor = num;
- dn = map_dev(major,minor);
- if (dn==NULL || is_standard(dn)) {
- /* this number only used by a 'standard' name,
- * so it is safe to use
- */
- break;
- }
- }
- }
- /* 'num' is the number to use, >=0 for md, <0 for mdp */
- if (must_remove) {
- /* never remove a device name that ends /mdNN or /dNN,
- * that would be confusing
- */
- if (is_standard(dev)) {
- fprintf(stderr, Name ": --auto refusing to remove %s as it looks like a standard name.\n",
- dev);
- return -1;
- }
- unlink(dev);
- }
-
- if (mknod(dev, S_IFBLK|0600, MKDEV(major, minor))!= 0) {
- fprintf(stderr, Name ": failed to create %s\n", dev);
- return -1;
- }
- if (must_remove) {
- chown(dev, stb.st_uid, stb.st_gid);
- chmod(dev, stb.st_mode & 07777);
- }
- make_parts(dev,autof);
- }
- mdfd = open(dev, O_RDWR, 0);
- if (mdfd < 0)
- fprintf(stderr, Name ": error opening %s: %s\n",
- dev, strerror(errno));
- else if (md_get_version(mdfd) <= 0) {
- fprintf(stderr, Name ": %s does not appear to be an md device\n",
- dev);
- close(mdfd);
- mdfd = -1;
- }
- return mdfd;
-}
-
-
-
int main(int argc, char *argv[])
{
int mode = 0;
int opt;
int option_index;
- char *help_text;
char *c;
int rv;
+ int i;
int chunk = 0;
- int size = -1;
+ long long size = -1;
int level = UnSet;
int layout = UnSet;
int raiddisks = 0;
+ int max_disks = MD_SB_DISKS; /* just a default */
int sparedisks = 0;
struct mddev_ident_s ident;
char *configfile = NULL;
char devmode = 0;
int runstop = 0;
int readonly = 0;
+ int write_behind = 0;
+ int bitmap_fd = -1;
+ char *bitmap_file = NULL;
+ char *backup_file = NULL;
+ int bitmap_chunk = UnSet;
int SparcAdjust = 0;
mddev_dev_t devlist = NULL;
mddev_dev_t *devlistend = & devlist;
mddev_dev_t dv;
int devs_found = 0;
int verbose = 0;
+ int quiet = 0;
int brief = 0;
int force = 0;
int test = 0;
+ int export = 0;
int assume_clean = 0;
- int autof = 0; /* -1 for non-partitions, 1 or more to create partitions */
+ char *symlinks = NULL;
+ /* autof indicates whether and how to create device node.
+ * bottom 3 bits are style. Rest (when shifted) are number of parts
+ * 0 - unset
+ * 1 - don't create (no)
+ * 2 - if is_standard, then create (yes)
+ * 3 - create as 'md' - reject is_standard mdp (md)
+ * 4 - create as 'mdp' - reject is_standard md (mdp)
+ * 5 - default to md if not is_standard (md in config file)
+ * 6 - default to mdp if not is_standard (part, or mdp in config file)
+ */
+ int autof = 0;
+ char *homehost = NULL;
+ char sys_hostname[256];
char *mailaddr = NULL;
char *program = NULL;
int delay = 0;
int daemonise = 0;
+ char *pidfile = NULL;
int oneshot = 0;
+ struct supertype *ss = NULL;
+ int writemostly = 0;
+ int re_add = 0;
+ char *shortopt = short_options;
+ int dosyslog = 0;
+ int rebuild_map = 0;
+ int auto_update_home = 0;
int copies;
+ int print_help = 0;
+ FILE *outf;
int mdfd = -1;
+ srandom(time(0) ^ getpid());
+
ident.uuid_set=0;
ident.level = UnSet;
ident.raid_disks = UnSet;
ident.super_minor= UnSet;
ident.devices=0;
+ ident.spare_group = NULL;
+ ident.autof = 0;
+ ident.st = NULL;
+ ident.bitmap_fd = -1;
+ ident.bitmap_file = NULL;
+ ident.name[0] = 0;
while ((option_index = -1) ,
(opt=getopt_long(argc, argv,
- short_options, long_options,
+ shortopt, long_options,
&option_index)) != -1) {
int newmode = mode;
- /* firstly, so mode-independant options */
+ /* firstly, some mode-independant options */
switch(opt) {
case 'h':
- help_text = Help;
- if (option_index > 0 &&
+ if (option_index > 0 &&
strcmp(long_options[option_index].name, "help-options")==0)
- help_text = OptionHelp;
+ print_help = 2;
else
- switch (mode) {
- case ASSEMBLE : help_text = Help_assemble; break;
- case BUILD : help_text = Help_build; break;
- case CREATE : help_text = Help_create; break;
- case MANAGE : help_text = Help_manage; break;
- case MISC : help_text = Help_misc; break;
- case MONITOR : help_text = Help_monitor; break;
- case GROW : help_text = Help_grow; break;
- }
- fputs(help_text,stderr);
- exit(0);
+ print_help = 1;
+ continue;
case 'V':
fputs(Version, stderr);
exit(0);
- case 'v': verbose = 1;
+ case 'v': verbose++;
continue;
- case 'b': brief = 1;
+ case 'q': quiet++;
+ continue;
+
+ case 'b':
+ if (mode == ASSEMBLE || mode == BUILD || mode == CREATE || mode == GROW)
+ break; /* b means bitmap */
+ brief = 1;
+ if (optarg) {
+ fprintf(stderr, Name ": -b cannot have any extra immediately after it, sorry.\n");
+ exit(2);
+ }
+ continue;
+
+ case 'Y': export++;
+ continue;
+
+ case HomeHost:
+ homehost = optarg;
continue;
case ':':
}
/* second, figure out the mode.
* Some options force the mode. Others
- * set the mode if it isn't already
+ * set the mode if it isn't already
*/
switch(opt) {
case '@': /* just incase they say --manage */
- newmode = MANAGE; break;
+ newmode = MANAGE;
+ shortopt = short_bitmap_options;
+ break;
case 'a':
case 'r':
case 'f':
- case 1 : if (!mode) newmode = MANAGE; break;
+ case ReAdd: /* re-add */
+ if (!mode) {
+ newmode = MANAGE;
+ shortopt = short_bitmap_options;
+ }
+ break;
- case 'A': newmode = ASSEMBLE; break;
- case 'B': newmode = BUILD; break;
- case 'C': newmode = CREATE; break;
+ case 'A': newmode = ASSEMBLE; shortopt = short_bitmap_auto_options; break;
+ case 'B': newmode = BUILD; shortopt = short_bitmap_auto_options; break;
+ case 'C': newmode = CREATE; shortopt = short_bitmap_auto_options; break;
case 'F': newmode = MONITOR;break;
- case 'G': newmode = GROW; break;
+ case 'G': newmode = GROW;
+ shortopt = short_bitmap_options;
+ break;
+ case 'I': newmode = INCREMENTAL;
+ shortopt = short_bitmap_auto_options; break;
+ case AutoDetect:
+ newmode = AUTODETECT; break;
case '#':
case 'D':
case 'E':
+ case 'X':
case 'Q': newmode = MISC; break;
case 'R':
case 'S':
case 'o':
case 'w':
+ case 'W':
case 'K': if (!mode) newmode = MISC; break;
}
if (mode && newmode == mode) {
fprintf(stderr, "--%s", long_options[option_index].name);
else
fprintf(stderr, "-%c", opt);
- fprintf(stderr, " would set mode to %s, but it is already %s.\n",
+ fprintf(stderr, " would set mdadm mode to \"%s\", but it is already set to \"%s\".\n",
map_num(modes, newmode),
map_num(modes, mode));
exit(2);
mode = newmode;
} else {
/* special case of -c --help */
- if (opt == 'c' &&
+ if (opt == 'c' &&
( strncmp(optarg, "--h", 3)==0 ||
strncmp(optarg, "-h", 2)==0)) {
- fputs(Help_config, stderr);
+ fputs(Help_config, stdout);
exit(0);
}
+
+ /* If first option is a device, don't force the mode yet */
+ if (opt == 1) {
+ if (devs_found == 0) {
+ dv = malloc(sizeof(*dv));
+ if (dv == NULL) {
+ fprintf(stderr, Name ": malloc failed\n");
+ exit(3);
+ }
+ dv->devname = optarg;
+ dv->disposition = devmode;
+ dv->writemostly = writemostly;
+ dv->re_add = re_add;
+ dv->used = 0;
+ dv->next = NULL;
+ *devlistend = dv;
+ devlistend = &dv->next;
+
+ devs_found++;
+ continue;
+ }
+ /* No mode yet, and this is the second device ... */
+ fprintf(stderr, Name ": An option must be given to set the mode before a second device is listed\n");
+ exit(2);
+ }
if (option_index >= 0)
- fprintf(stderr, "--%s", long_options[option_index].name);
+ fprintf(stderr, Name ": --%s", long_options[option_index].name);
else
- fprintf(stderr, "-%c", opt);
- fprintf(stderr, " does not set the mode, and so cannot be first.\n");
+ fprintf(stderr, Name ": -%c", opt);
+ fprintf(stderr, " does not set the mode, and so cannot be the first option.\n");
exit(2);
}
case 'C':
case 'F':
case 'G':
+ case 'I':
+ case AutoDetect:
continue;
}
if (opt == 1) {
}
dv->devname = optarg;
dv->disposition = devmode;
+ dv->writemostly = writemostly;
+ dv->re_add = re_add;
dv->next = NULL;
*devlistend = dv;
devlistend = &dv->next;
-
+
devs_found++;
continue;
}
}
continue;
+ case O(ASSEMBLE,AutoHomeHost):
+ auto_update_home = 1;
+ continue;
+ case O(INCREMENTAL, 'e'):
+ case O(CREATE,'e'):
+ case O(ASSEMBLE,'e'):
+ case O(MISC,'e'): /* set metadata (superblock) information */
+ if (ss) {
+ fprintf(stderr, Name ": metadata information already given\n");
+ exit(2);
+ }
+ for(i=0; !ss && superlist[i]; i++)
+ ss = superlist[i]->match_metadata_desc(optarg);
+
+ if (!ss) {
+ fprintf(stderr, Name ": unrecognised metadata identifier: %s\n", optarg);
+ exit(2);
+ }
+ max_disks = ss->max_devs;
+ continue;
+
+ case O(MANAGE,'W'):
+ case O(BUILD,'W'):
+ case O(CREATE,'W'):
+ /* set write-mostly for following devices */
+ writemostly = 1;
+ continue;
+
case O(GROW,'z'):
case O(CREATE,'z'): /* size */
if (size >= 0) {
if (strcmp(optarg, "max")==0)
size = 0;
else {
- size = strtol(optarg, &c, 10);
+ size = strtoll(optarg, &c, 10);
if (!optarg[0] || *c || size < 4) {
fprintf(stderr, Name ": invalid size: %s\n",
optarg);
}
continue;
+ case O(GROW,'l'): /* hack - needed to understand layout */
case O(CREATE,'l'):
case O(BUILD,'l'): /* set raid level*/
if (level != UnSet) {
optarg);
exit(2);
}
- if (level != 0 && level != -1 && level != 1 && level != -4 && mode == BUILD) {
+ if (level != 0 && level != -1 && level != 1 && level != -4 && level != -5 && mode == BUILD) {
fprintf(stderr, Name ": Raid level %s not permitted with --build.\n",
optarg);
exit(2);
continue;
case O(CREATE,'p'): /* raid5 layout */
+ case O(BUILD,'p'): /* faulty layout */
+ case O(GROW, 'p'): /* faulty reconfig */
if (layout != UnSet) {
fprintf(stderr,Name ": layout may only be sent once. "
"Second value was %s\n", optarg);
break;
case 10:
- /* 'f' or 'n' followed by a number <= raid_disks */
- if ((optarg[0] != 'n' && optarg[0] != 'f') ||
+ /* 'f', 'o' or 'n' followed by a number <= raid_disks */
+ if ((optarg[0] != 'n' && optarg[0] != 'f' && optarg[0] != 'o') ||
(copies = strtoul(optarg+1, &cp, 10)) < 1 ||
copies > 200 ||
*cp) {
- fprintf(stderr, Name ": layout for raid10 must be 'nNN' or 'fNN' where NN is a number, not %s\n", optarg);
+ fprintf(stderr, Name ": layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg);
exit(2);
}
if (optarg[0] == 'n')
layout = 256 + copies;
+ else if (optarg[0] == 'o')
+ layout = 0x10000 + (copies<<8) + 1;
else
layout = 1 + (copies<<8);
break;
+ case -5: /* Faulty
+ * modeNNN
+ */
+
+ {
+ int ln = strcspn(optarg, "0123456789");
+ char *m = strdup(optarg);
+ int mode;
+ m[ln] = 0;
+ mode = map_name(faultylayout, m);
+ if (mode == UnSet) {
+ fprintf(stderr, Name ": layout %s not understood for faulty.\n",
+ optarg);
+ exit(2);
+ }
+ layout = mode | (atoi(optarg+ln)<< ModeShift);
+ }
}
continue;
- case O(CREATE,3):
- case O(BUILD,3): /* assume clean */
+ case O(CREATE,AssumeClean):
+ case O(BUILD,AssumeClean): /* assume clean */
assume_clean = 1;
continue;
exit(2);
}
raiddisks = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || raiddisks<=0 || raiddisks > MD_SB_DISKS) {
+ if (!optarg[0] || *c || raiddisks<=0) {
fprintf(stderr, Name ": invalid number of raid devices: %s\n",
optarg);
exit(2);
}
- if (raiddisks == 1 && !force) {
- fprintf(stderr, Name ": '1' is an unusual number of drives for an array, so it is probably\n"
- " a mistake. If you really mean it you will need to specify --force before\n"
- " setting the number of drives.\n");
- exit(2);
- }
ident.raid_disks = raiddisks;
continue;
exit(2);
}
sparedisks = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || sparedisks < 0 || sparedisks > MD_SB_DISKS - raiddisks) {
+ if (!optarg[0] || *c || sparedisks < 0) {
fprintf(stderr, Name ": invalid number of spare-devices: %s\n",
optarg);
exit(2);
case O(CREATE,'a'):
case O(BUILD,'a'):
+ case O(INCREMENTAL,'a'):
case O(ASSEMBLE,'a'): /* auto-creation of device node */
- if (optarg == NULL)
- autof = -1;
- else if (strcasecmp(optarg,"no")==0)
- autof = 0;
- else if (strcasecmp(optarg,"yes")==0 || strcasecmp(optarg,"md")==0)
- autof = -1;
- else {
- /* There might be digits, and maybe a hypen, at the end */
- char *e = optarg + strlen(optarg);
- int num = 4;
- int len;
- while (e > optarg && isdigit(e[-1]))
- e--;
- if (*e) {
- num = atoi(e);
- if (num <= 0) num = 1;
- }
- if (e > optarg && e[-1] == '-')
- e--;
- len = e - optarg;
- if ((len == 3 && strncasecmp(optarg,"mdp",3)==0) ||
- (len == 1 && strncasecmp(optarg,"p",1)==0) ||
- (len >= 4 && strncasecmp(optarg,"part",4)==0))
- autof = num;
- else {
- fprintf(stderr, Name ": --auto flag arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n"
- " optionally followed by a number.\n",
- optarg);
- exit(2);
- }
- }
+ autof = parse_auto(optarg, "--auto flag", 0);
+ continue;
+
+ case O(CREATE,Symlinks):
+ case O(BUILD,Symlinks):
+ case O(ASSEMBLE,Symlinks): /* auto creation of symlinks in /dev to /dev/md */
+ symlinks = optarg;
continue;
case O(BUILD,'f'): /* force honouring '-n 1' */
+ case O(GROW,'f'): /* ditto */
case O(CREATE,'f'): /* force honouring of device list */
case O(ASSEMBLE,'f'): /* force assembly */
case O(MISC,'f'): /* force zero */
continue;
/* now for the Assemble options */
+ case O(CREATE,'u'): /* uuid of array */
case O(ASSEMBLE,'u'): /* uuid of array */
if (ident.uuid_set) {
fprintf(stderr, Name ": uuid cannot be set twice. "
}
continue;
+ case O(CREATE,'N'):
+ case O(ASSEMBLE,'N'):
+ if (ident.name[0]) {
+ fprintf(stderr, Name ": name cannot be set twice. "
+ "Second value %s.\n", optarg);
+ exit(2);
+ }
+ if (strlen(optarg) > 32) {
+ fprintf(stderr, Name ": name '%s' is too long, 32 chars max.\n",
+ optarg);
+ exit(2);
+ }
+ strcpy(ident.name, optarg);
+ continue;
+
case O(ASSEMBLE,'m'): /* super-minor for array */
if (ident.super_minor != UnSet) {
fprintf(stderr, Name ": super-minor cannot be set twice. "
exit(2);
}
update = optarg;
- if (strcmp(update, "sparc2.2")==0)
+ if (strcmp(update, "sparc2.2")==0)
continue;
if (strcmp(update, "super-minor") == 0)
continue;
continue;
if (strcmp(update, "resync")==0)
continue;
- fprintf(stderr, Name ": '--update %s' invalid. Only 'sparc2.2', 'super-minor', 'resync' or 'summaries' supported\n",update);
- exit(2);
+ if (strcmp(update, "uuid")==0)
+ continue;
+ if (strcmp(update, "name")==0)
+ continue;
+ if (strcmp(update, "homehost")==0)
+ continue;
+ if (strcmp(update, "devicesize")==0)
+ continue;
+ if (strcmp(update, "byteorder")==0) {
+ if (ss) {
+ fprintf(stderr, Name ": must not set metadata type with --update=byteorder.\n");
+ exit(2);
+ }
+ for(i=0; !ss && superlist[i]; i++)
+ ss = superlist[i]->match_metadata_desc("0.swap");
+ if (!ss) {
+ fprintf(stderr, Name ": INTERNAL ERROR cannot find 0.swap\n");
+ exit(2);
+ }
+
+ continue;
+ }
+ if (strcmp(update,"?") == 0 ||
+ strcmp(update, "help") == 0) {
+ outf = stdout;
+ fprintf(outf, Name ": ");
+ } else {
+ outf = stderr;
+ fprintf(outf,
+ Name ": '--update=%s' is invalid. ",
+ update);
+ }
+ fprintf(outf, "Valid --update options are:\n"
+ " 'sparc2.2', 'super-minor', 'uuid', 'name', 'resync',\n"
+ " 'summaries', 'homehost', 'byteorder', 'devicesize'.\n");
+ exit(outf == stdout ? 0 : 2);
+
+ case O(ASSEMBLE,NoDegraded): /* --no-degraded */
+ runstop = -1; /* --stop isn't allowed for --assemble,
+ * so we overload slightly */
+ continue;
case O(ASSEMBLE,'c'): /* config file */
case O(MISC, 'c'):
exit(2);
}
configfile = optarg;
+ set_conffile(configfile);
/* FIXME possibly check that config file exists. Even parse it */
continue;
case O(ASSEMBLE,'s'): /* scan */
case O(MISC,'s'):
case O(MONITOR,'s'):
+ case O(INCREMENTAL,'s'):
scan = 1;
continue;
continue;
case O(MONITOR,'d'): /* delay in seconds */
+ case O(GROW, 'd'):
+ case O(BUILD,'d'): /* delay for bitmap updates */
+ case O(CREATE,'d'):
if (delay)
fprintf(stderr, Name ": only specify delay once. %s ignored.\n",
optarg);
case O(MONITOR,'f'): /* daemonise */
daemonise = 1;
continue;
+ case O(MONITOR,'i'): /* pid */
+ if (pidfile)
+ fprintf(stderr, Name ": only specify one pid file. %s ignored.\n",
+ optarg);
+ else
+ pidfile = optarg;
+ continue;
case O(MONITOR,'1'): /* oneshot */
oneshot = 1;
continue;
case O(MONITOR,'t'): /* test */
test = 1;
continue;
+ case O(MONITOR,'y'): /* log messages to syslog */
+ openlog("mdadm", LOG_PID, SYSLOG_FACILITY);
+ dosyslog = 1;
+ continue;
/* now the general management options. Some are applicable
* to other modes. None have arguments.
case O(GROW,'a'):
case O(MANAGE,'a'): /* add a drive */
devmode = 'a';
+ re_add = 0;
+ continue;
+ case O(MANAGE,ReAdd):
+ devmode = 'a';
+ re_add = 1;
continue;
case O(MANAGE,'r'): /* remove a drive */
devmode = 'r';
case O(MANAGE,'f'): /* set faulty */
devmode = 'f';
continue;
+ case O(INCREMENTAL,'R'):
case O(MANAGE,'R'):
case O(ASSEMBLE,'R'):
case O(BUILD,'R'):
case O(MISC,'K'):
case O(MISC,'R'):
case O(MISC,'S'):
+ case O(MISC,'X'):
case O(MISC,'o'):
case O(MISC,'w'):
+ case O(MISC,'W'):
if (devmode && devmode != opt &&
(devmode == 'E' || (opt == 'E' && devmode != 'Q'))) {
fprintf(stderr, Name ": --examine/-E cannot be given with -%c\n",
test = 1;
continue;
- case O(MISC, 22):
+ case O(MISC, Sparc22):
if (devmode != 'E') {
fprintf(stderr, Name ": --sparc2.2 only allowed with --examine\n");
exit(2);
}
SparcAdjust = 1;
continue;
+
+ case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */
+ if (!optarg) {
+ fprintf(stderr, Name ": bitmap file needed with -b in --assemble mode\n");
+ exit(2);
+ }
+ if (strcmp(optarg, "internal")==0) {
+ fprintf(stderr, Name ": there is no need to specify --bitmap when assembling arrays with internal bitmaps\n");
+ continue;
+ }
+ bitmap_fd = open(optarg, O_RDWR);
+ if (!*optarg || bitmap_fd < 0) {
+ fprintf(stderr, Name ": cannot open bitmap file %s: %s\n", optarg, strerror(errno));
+ exit(2);
+ }
+ ident.bitmap_fd = bitmap_fd; /* for Assemble */
+ continue;
+
+ case O(ASSEMBLE, BackupFile):
+ case O(GROW, BackupFile):
+ /* Specify a file into which grow might place a backup,
+ * or from which assemble might recover a backup
+ */
+ if (backup_file) {
+ fprintf(stderr, Name ": backup file already specified, rejecting %s\n", optarg);
+ exit(2);
+ }
+ backup_file = optarg;
+ continue;
+
+ case O(BUILD,'b'):
+ case O(CREATE,'b'): /* here we create the bitmap */
+ if (strcmp(optarg, "none") == 0) {
+ fprintf(stderr, Name ": '--bitmap none' only"
+ " support for --grow\n");
+ exit(2);
+ }
+ /* FALL THROUGH */
+ case O(GROW,'b'):
+ if (strcmp(optarg, "internal")== 0 ||
+ strcmp(optarg, "none")== 0 ||
+ strchr(optarg, '/') != NULL) {
+ bitmap_file = optarg;
+ continue;
+ }
+ /* probable typo */
+ fprintf(stderr, Name ": bitmap file must contain a '/', or be 'internal', or 'none'\n");
+ exit(2);
+
+ case O(GROW,BitmapChunk):
+ case O(BUILD,BitmapChunk):
+ case O(CREATE,BitmapChunk): /* bitmap chunksize */
+ bitmap_chunk = strtol(optarg, &c, 10);
+ if (!optarg[0] || *c || bitmap_chunk < 0 ||
+ bitmap_chunk & (bitmap_chunk - 1)) {
+ fprintf(stderr, Name ": invalid bitmap chunksize: %s\n",
+ optarg);
+ exit(2);
+ }
+ /* convert K to B, chunk of 0K means 512B */
+ bitmap_chunk = bitmap_chunk ? bitmap_chunk * 1024 : 512;
+ continue;
+
+ case O(GROW, WriteBehind):
+ case O(BUILD, WriteBehind):
+ case O(CREATE, WriteBehind): /* write-behind mode */
+ write_behind = DEFAULT_MAX_WRITE_BEHIND;
+ if (optarg) {
+ write_behind = strtol(optarg, &c, 10);
+ if (write_behind < 0 || *c ||
+ write_behind > 16383) {
+ fprintf(stderr, Name ": Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", optarg);
+ exit(2);
+ }
+ }
+ continue;
+
+ case O(INCREMENTAL, 'r'):
+ rebuild_map = 1;
+ continue;
}
/* We have now processed all the valid options. Anything else is
* an error
*/
- fprintf(stderr, Name ": option %c not valid in %s mode\n",
- opt, map_num(modes, mode));
+ if (option_index > 0)
+ fprintf(stderr, Name ":option --%s not valid in %s mode\n",
+ long_options[option_index].name,
+ map_num(modes, mode));
+ else
+ fprintf(stderr, Name ": option -%c not valid in %s mode\n",
+ opt, map_num(modes, mode));
exit(2);
}
+ if (print_help) {
+ char *help_text = Help;
+ if (print_help == 2)
+ help_text = OptionHelp;
+ else
+ switch (mode) {
+ case ASSEMBLE : help_text = Help_assemble; break;
+ case BUILD : help_text = Help_build; break;
+ case CREATE : help_text = Help_create; break;
+ case MANAGE : help_text = Help_manage; break;
+ case MISC : help_text = Help_misc; break;
+ case MONITOR : help_text = Help_monitor; break;
+ case GROW : help_text = Help_grow; break;
+ case INCREMENTAL:help_text= Help_incr; break;
+ }
+ fputs(help_text,stdout);
+ exit(0);
+ }
+
+ if (!mode && devs_found) {
+ mode = MISC;
+ devmode = 'Q';
+ if (devlist->disposition == 0)
+ devlist->disposition = devmode;
+ }
if (!mode) {
fputs(Usage, stderr);
exit(2);
}
+
+ if (symlinks) {
+ struct createinfo *ci = conf_get_create_info();
+
+ if (strcasecmp(symlinks, "yes") == 0)
+ ci->symlinks = 1;
+ else if (strcasecmp(symlinks, "no") == 0)
+ ci->symlinks = 0;
+ else {
+ fprintf(stderr, Name ": option --symlinks must be 'no' or 'yes'\n");
+ exit(2);
+ }
+ }
/* Ok, got the option parsing out of the way
* hopefully it's mostly right but there might be some stuff
* missing
exit(2);
}
if ((int)ident.super_minor == -2 && autof) {
- fprintf(stderr, Name ": --super-minor=dev is incompatible with --auto\n");
+ fprintf(stderr, Name ": --super-minor=dev is incompatible with --auto\n");
exit(2);
}
+ if (mode == MANAGE || mode == GROW)
+ autof=1; /* Don't create */
mdfd = open_mddev(devlist->devname, autof);
if (mdfd < 0)
exit(1);
if ((int)ident.super_minor == -2) {
struct stat stb;
fstat(mdfd, &stb);
- ident.super_minor = MINOR(stb.st_rdev);
+ ident.super_minor = minor(stb.st_rdev);
+ }
+ }
+
+ if (raiddisks) {
+ if (raiddisks > max_disks) {
+ fprintf(stderr, Name ": invalid number of raid devices: %d\n",
+ raiddisks);
+ exit(2);
+ }
+ if (raiddisks == 1 && !force && level != -5) {
+ fprintf(stderr, Name ": '1' is an unusual number of drives for an array, so it is probably\n"
+ " a mistake. If you really mean it you will need to specify --force before\n"
+ " setting the number of drives.\n");
+ exit(2);
+ }
+ }
+ if (sparedisks) {
+ if ( sparedisks > max_disks - raiddisks) {
+ fprintf(stderr, Name ": invalid number of spare-devices: %d\n",
+ sparedisks);
+ exit(2);
+ }
+ }
+
+ if (homehost == NULL)
+ homehost = conf_get_homehost();
+ if (homehost && strcmp(homehost, "<system>")==0) {
+ if (gethostname(sys_hostname, sizeof(sys_hostname)) == 0) {
+ sys_hostname[sizeof(sys_hostname)-1] = 0;
+ homehost = sys_hostname;
}
}
rv = Manage_ro(devlist->devname, mdfd, readonly);
if (!rv && devs_found>1)
rv = Manage_subdevs(devlist->devname, mdfd,
- devlist->next);
+ devlist->next, verbose-quiet);
if (!rv && readonly < 0)
rv = Manage_ro(devlist->devname, mdfd, readonly);
if (!rv && runstop)
- rv = Manage_runstop(devlist->devname, mdfd, runstop);
+ rv = Manage_runstop(devlist->devname, mdfd, runstop, quiet);
break;
case ASSEMBLE:
if (devs_found == 1 && ident.uuid_set == 0 &&
- ident.super_minor == UnSet && !scan ) {
+ ident.super_minor == UnSet && ident.name[0] == 0 && !scan ) {
/* Only a device has been given, so get details from config file */
- mddev_ident_t array_ident = conf_get_ident(configfile, devlist->devname);
- mdfd = open_mddev(devlist->devname, array_ident->autof);
- if (mdfd < 0)
+ mddev_ident_t array_ident = conf_get_ident(devlist->devname);
+ if (array_ident == NULL) {
+ fprintf(stderr, Name ": %s not identified in config file.\n",
+ devlist->devname);
rv |= 1;
- else {
- if (array_ident == NULL) {
- fprintf(stderr, Name ": %s not identified in config file.\n",
- devlist->devname);
+ } else {
+ mdfd = open_mddev(devlist->devname,
+ array_ident->autof ? array_ident->autof : autof);
+ if (mdfd < 0)
rv |= 1;
+ else {
+ rv |= Assemble(ss, devlist->devname, mdfd, array_ident,
+ NULL, backup_file,
+ readonly, runstop, update, homehost, verbose-quiet, force);
+ close(mdfd);
}
- else
- rv |= Assemble(devlist->devname, mdfd, array_ident, configfile,
- NULL,
- readonly, runstop, update, verbose, force);
}
} else if (!scan)
- rv = Assemble(devlist->devname, mdfd, &ident, configfile,
- devlist->next,
- readonly, runstop, update, verbose, force);
+ rv = Assemble(ss, devlist->devname, mdfd, &ident,
+ devlist->next, backup_file,
+ readonly, runstop, update, homehost, verbose-quiet, force);
else if (devs_found>0) {
if (update && devs_found > 1) {
fprintf(stderr, Name ": can only update a single array at a time\n");
exit(1);
}
+ if (backup_file && devs_found > 1) {
+ fprintf(stderr, Name ": can only assemble a single array when providing a backup file.\n");
+ exit(1);
+ }
for (dv = devlist ; dv ; dv=dv->next) {
- mddev_ident_t array_ident = conf_get_ident(configfile, dv->devname);
- mdfd = open_mddev(dv->devname, array_ident->autof);
- if (mdfd < 0) {
- rv |= 1;
- continue;
- }
+ mddev_ident_t array_ident = conf_get_ident(dv->devname);
if (array_ident == NULL) {
fprintf(stderr, Name ": %s not identified in config file.\n",
dv->devname);
rv |= 1;
continue;
}
- rv |= Assemble(dv->devname, mdfd, array_ident, configfile,
- NULL,
- readonly, runstop, update, verbose, force);
+ mdfd = open_mddev(dv->devname,
+ array_ident->autof ?array_ident->autof : autof);
+ if (mdfd < 0) {
+ rv |= 1;
+ continue;
+ }
+ rv |= Assemble(ss, dv->devname, mdfd, array_ident,
+ NULL, backup_file,
+ readonly, runstop, update, homehost, verbose-quiet, force);
+ close(mdfd);
}
} else {
- mddev_ident_t array_list = conf_get_ident(configfile, NULL);
- if (!array_list) {
+ mddev_ident_t array_list = conf_get_ident(NULL);
+ mddev_dev_t devlist = conf_get_devs();
+ int cnt = 0;
+ if (devlist == NULL) {
+ fprintf(stderr, Name ": No devices listed in conf file were found.\n");
+ exit(1);
+ }
+ if (update) {
+ fprintf(stderr, Name ": --update not meaningful with a --scan assembly.\n");
+ exit(1);
+ }
+ if (backup_file) {
+ fprintf(stderr, Name ": --backup_file not meaningful with a --scan assembly.\n");
+ exit(1);
+ }
+ for (; array_list; array_list = array_list->next) {
+ mdu_array_info_t array;
+ mdfd = open_mddev(array_list->devname,
+ array_list->autof ? array_list->autof : autof);
+ if (mdfd < 0) {
+ rv |= 1;
+ continue;
+ }
+ if (ioctl(mdfd, GET_ARRAY_INFO, &array)>=0)
+ /* already assembled, skip */
+ cnt++;
+ else {
+ rv |= Assemble(ss, array_list->devname, mdfd,
+ array_list,
+ NULL, NULL,
+ readonly, runstop, NULL, homehost, verbose-quiet, force);
+ if (rv == 0) cnt++;
+ }
+ close(mdfd);
+ }
+ if (homehost) {
+ /* Maybe we can auto-assemble something.
+ * Repeatedly call Assemble in auto-assmble mode
+ * until it fails
+ */
+ int rv2;
+ int acnt;
+ ident.autof = autof;
+ do {
+ mddev_dev_t devlist = conf_get_devs();
+ acnt = 0;
+ do {
+ rv2 = Assemble(ss, NULL, -1,
+ &ident,
+ devlist, NULL,
+ readonly, runstop, NULL, homehost, verbose-quiet, force);
+ if (rv2==0) {
+ cnt++;
+ acnt++;
+ }
+ if (rv2 == 1)
+ /* found something so even though assembly failed we
+ * want to avoid auto-updates
+ */
+ auto_update_home = 0;
+ } while (rv2!=2);
+ /* Incase there are stacked devices, we need to go around again */
+ } while (acnt);
+ if (cnt == 0 && auto_update_home && homehost) {
+ /* Nothing found, maybe we need to bootstrap homehost info */
+ do {
+ acnt = 0;
+ do {
+ rv2 = Assemble(ss, NULL, -1,
+ &ident,
+ NULL, NULL,
+ readonly, runstop, "homehost", homehost, verbose-quiet, force);
+ if (rv2==0) {
+ cnt++;
+ acnt++;
+ }
+ } while (rv2!=2);
+ /* Incase there are stacked devices, we need to go around again */
+ } while (acnt);
+ }
+ if (cnt == 0 && rv == 0) {
+ fprintf(stderr, Name ": No arrays found in config file or automatically\n");
+ rv = 1;
+ } else if (cnt)
+ rv = 0;
+ } else if (cnt == 0 && rv == 0) {
fprintf(stderr, Name ": No arrays found in config file\n");
rv = 1;
- } else
- for (; array_list; array_list = array_list->next) {
- mdu_array_info_t array;
- mdfd = open_mddev(array_list->devname, array_list->autof);
- if (mdfd < 0) {
- rv |= 1;
- continue;
- }
- if (ioctl(mdfd, GET_ARRAY_INFO, &array)>=0)
- /* already assembled, skip */
- continue;
- rv |= Assemble(array_list->devname, mdfd,
- array_list, configfile,
- NULL,
- readonly, runstop, NULL, verbose, force);
- }
+ }
}
break;
case BUILD:
- rv = Build(devlist->devname, mdfd, chunk, level, raiddisks, devlist->next, assume_clean);
+ if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
+ if (write_behind && !bitmap_file) {
+ fprintf(stderr, Name ": write-behind mode requires a bitmap.\n");
+ rv = 1;
+ break;
+ }
+ if (raiddisks == 0) {
+ fprintf(stderr, Name ": no raid-disks specified.\n");
+ rv = 1;
+ break;
+ }
+
+ if (bitmap_file) {
+ if (strcmp(bitmap_file, "internal")==0) {
+ fprintf(stderr, Name ": 'internal' bitmaps not supported with --build\n");
+ rv |= 1;
+ break;
+ }
+ }
+ rv = Build(devlist->devname, mdfd, chunk, level, layout,
+ raiddisks, devlist->next, assume_clean,
+ bitmap_file, bitmap_chunk, write_behind, delay, verbose-quiet);
break;
case CREATE:
- rv = Create(devlist->devname, mdfd, chunk, level, layout, size<0 ? 0 : size,
- raiddisks, sparedisks,
- devs_found-1, devlist->next, runstop, verbose, force);
+ if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
+ if (write_behind && !bitmap_file) {
+ fprintf(stderr, Name ": write-behind mode requires a bitmap.\n");
+ rv = 1;
+ break;
+ }
+ if (raiddisks == 0) {
+ fprintf(stderr, Name ": no raid-disks specified.\n");
+ rv = 1;
+ break;
+ }
+
+ rv = Create(ss, devlist->devname, mdfd, chunk, level, layout, size<0 ? 0 : size,
+ raiddisks, sparedisks, ident.name, homehost,
+ ident.uuid_set ? ident.uuid : NULL,
+ devs_found-1, devlist->next, runstop, verbose-quiet, force, assume_clean,
+ bitmap_file, bitmap_chunk, write_behind, delay);
break;
case MISC:
-
if (devmode == 'E') {
if (devlist == NULL && !scan) {
fprintf(stderr, Name ": No devices to examine\n");
exit(2);
}
if (devlist == NULL)
- devlist = conf_get_devs(configfile);
+ devlist = conf_get_devs();
if (devlist == NULL) {
fprintf(stderr, Name ": No devices listed in %s\n", configfile?configfile:DefaultConfFile);
exit(1);
}
- rv = Examine(devlist, scan?!verbose:brief, scan, SparcAdjust);
+ if (brief && verbose)
+ brief = 2;
+ rv = Examine(devlist, scan?(verbose>1?0:verbose+1):brief,
+ export, scan,
+ SparcAdjust, ss, homehost);
} else {
if (devlist == NULL) {
- if ((devmode == 'S' ||devmode=='D') && scan) {
- /* apply to all devices in /proc/mdstat */
- struct mdstat_ent *ms = mdstat_read(0);
+ if (devmode=='D' && scan) {
+ /* apply --detail to all devices in /proc/mdstat */
+ struct mdstat_ent *ms = mdstat_read(0, 1);
struct mdstat_ent *e;
for (e=ms ; e ; e=e->next) {
char *name = get_md_name(e->devnum);
e->dev);
continue;
}
- if (devmode == 'D')
- rv |= Detail(name, !verbose, test);
- else if (devmode=='S') {
- mdfd = open_mddev(name, 0);
- if (mdfd >= 0)
- rv |= Manage_runstop(name, mdfd, -1);
- }
+ rv |= Detail(name, verbose>1?0:verbose+1,
+ export, test, homehost);
put_md_name(name);
}
- } else {
+ } else if (devmode == 'S' && scan) {
+ /* apply --stop to all devices in /proc/mdstat */
+ /* Due to possible stacking of devices, repeat until
+ * nothing more can be stopped
+ */
+ int progress=1, err;
+ int last = 0;
+ do {
+ struct mdstat_ent *ms = mdstat_read(0, 0);
+ struct mdstat_ent *e;
+
+ if (!progress) last = 1;
+ progress = 0; err = 0;
+ for (e=ms ; e ; e=e->next) {
+ char *name = get_md_name(e->devnum);
+
+ if (!name) {
+ fprintf(stderr, Name ": cannot find device file for %s\n",
+ e->dev);
+ continue;
+ }
+ mdfd = open_mddev(name, 1);
+ if (mdfd >= 0) {
+ if (Manage_runstop(name, mdfd, -1, quiet?1:last?0:-1))
+ err = 1;
+ else
+ progress = 1;
+ close(mdfd);
+ }
+
+ put_md_name(name);
+ }
+ } while (!last && err);
+ if (err) rv |= 1;
+ } else {
fprintf(stderr, Name ": No devices given.\n");
exit(2);
}
for (dv=devlist ; dv; dv=dv->next) {
switch(dv->disposition) {
case 'D':
- rv |= Detail(dv->devname, brief, test); continue;
+ rv |= Detail(dv->devname,
+ brief?1+verbose:0,
+ export, test, homehost);
+ continue;
case 'K': /* Zero superblock */
- rv |= Kill(dv->devname, force); continue;
+ rv |= Kill(dv->devname, force, quiet,0);
+ continue;
case 'Q':
rv |= Query(dv->devname); continue;
+ case 'X':
+ rv |= ExamineBitmap(dv->devname, brief, ss); continue;
+ case 'W':
+ rv |= Wait(dv->devname); continue;
}
- mdfd = open_mddev(dv->devname, 0);
- if (mdfd>=0)
+ mdfd = open_mddev(dv->devname, 1);
+ if (mdfd>=0) {
switch(dv->disposition) {
case 'R':
- rv |= Manage_runstop(dv->devname, mdfd, 1); break;
+ rv |= Manage_runstop(dv->devname, mdfd, 1, quiet); break;
case 'S':
- rv |= Manage_runstop(dv->devname, mdfd, -1); break;
+ rv |= Manage_runstop(dv->devname, mdfd, -1, quiet); break;
case 'o':
rv |= Manage_ro(dv->devname, mdfd, 1); break;
case 'w':
rv |= Manage_ro(dv->devname, mdfd, -1); break;
}
+ close(mdfd);
+ } else
+ rv |= 1;
}
}
break;
rv = 1;
break;
}
+ if (pidfile && !daemonise) {
+ fprintf(stderr, Name ": Cannot write a pid file when not in daemon mode\n");
+ rv = 1;
+ break;
+ }
rv= Monitor(devlist, mailaddr, program,
- delay?delay:60, daemonise, scan, oneshot, configfile, test);
+ delay?delay:60, daemonise, scan, oneshot,
+ dosyslog, test, pidfile);
break;
case GROW:
if (devs_found > 1) {
-
+
/* must be '-a'. */
if (size >= 0 || raiddisks) {
fprintf(stderr, Name ": --size, --raiddisks, and --add are exclusing in --grow mode\n");
if (rv)
break;
}
- } else if (size >= 0 && raiddisks) {
- fprintf(stderr, Name ": can only grow size OR raiddisks, not both\n");
+ } else if ((size >= 0) + (raiddisks != 0) + (layout != UnSet) + (bitmap_file != NULL)> 1) {
+ fprintf(stderr, Name ": can change at most one of size, raiddisks, bitmap, and layout\n");
+ rv = 1;
+ break;
+ } else if (layout != UnSet)
+ rv = Manage_reconfig(devlist->devname, mdfd, layout);
+ else if (size >= 0 || raiddisks)
+ rv = Grow_reshape(devlist->devname, mdfd, quiet, backup_file,
+ size, level, layout, chunk, raiddisks);
+ else if (bitmap_file) {
+ if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
+ rv = Grow_addbitmap(devlist->devname, mdfd, bitmap_file,
+ bitmap_chunk, delay, write_behind, force);
+ } else
+ fprintf(stderr, Name ": no changes to --grow\n");
+ break;
+ case INCREMENTAL:
+ if (rebuild_map) {
+ RebuildMap();
+ }
+ if (scan) {
+ if (runstop <= 0) {
+ fprintf(stderr, Name
+ ": --incremental --scan meaningless without --run.\n");
+ break;
+ }
+ rv = IncrementalScan(verbose);
+ }
+ if (!devlist) {
+ if (!rebuild_map && !scan) {
+ fprintf(stderr, Name
+ ": --incremental requires a device.\n");
+ rv = 1;
+ }
+ break;
+ }
+ if (devlist->next) {
+ fprintf(stderr, Name
+ ": --incremental can only handle one device.\n");
rv = 1;
break;
- } else
- rv = Manage_resize(devlist->devname, mdfd, size, raiddisks);
+ }
+ rv = Incremental(devlist->devname, verbose-quiet, runstop,
+ ss, homehost, autof);
+ break;
+ case AUTODETECT:
+ autodetect();
break;
}
exit(rv);
projects / thirdparty / mdadm.git / blobdiff