return csl;
}
+struct csl *csl_join(struct csl *c1, struct csl *c2)
+{
+ int cnt1, cnt2;
+ if (c1 == NULL)
+ return c2;
+ if (c2 == NULL)
+ return c1;
+
+ for (cnt1 = 0; c1[cnt1].len; cnt1++)
+ ;
+ for (cnt2 = 0; c2[cnt2].len; cnt2++)
+ ;
+ c1 = realloc(c1, (cnt1+cnt2+1)*sizeof(*c1));
+ while (cnt2 >= 0) {
+ c1[cnt1+cnt2] = c2[cnt2];
+ cnt2--;
+ }
+ free(c2);
+ return c1;
+}
+
+/* When rediffing a patch, we *must* make sure the hunk headers
+ * line up. So don't do a full diff, but rather find the hunk
+ * headers and diff the bits between them.
+ */
+struct csl *diff_patch(struct file a, struct file b)
+{
+ int ap, bp;
+ struct csl *csl = NULL;
+ if (a.list[0].start[0] != '\0' ||
+ b.list[0].start[0] != '\0')
+ /* this is not a patch */
+ return diff(a, b);
+
+ ap = 0; bp = 0;
+ while (ap < a.elcnt && bp < b.elcnt) {
+ int alo = ap;
+ int blo = bp;
+ struct csl *cs;
+
+ do
+ ap++;
+ while (ap < a.elcnt &&
+ a.list[ap].start[0] != '\0');
+ do
+ bp++;
+ while (bp < b.elcnt &&
+ b.list[bp].start[0] != '\0');
+ cs = diff_partial(a, b, alo, ap, blo, bp);
+ csl = csl_join(csl, cs);
+ }
+ return csl;
+}
+
#ifdef MAIN
main(int argc, char *argv[])
#undef IO_ERROR
#undef REDIRECT_SECTOR
-
-static int init_resync (conf_t *conf)
-{
-*** 1144,16 **** 8
<<<<<<<
+static void raid1syncd (void *data)
+{
raid1_conf_t *conf = data;
- mddev_t *mddev = conf->mddev;
|||||||
+static void raid1syncd(void *data)
+{
conf_t *conf = data;
- mddev_t *mddev = conf->mddev;
=======
- sector_t max_sector, nr_sectors;
- int disk, partial;
>>>>>>>
- if (sector_nr == 0)
- if (init_resync(conf))
- return -ENOMEM;
-
-<<<<<<<
- close_sync(conf);
-
-}
-
/*
* perform a "sync" on one "block"
*
md_sync_acct(bh->b_dev, bh->b_size/512);
return (bsize >> 9);
-|||||||
- close_sync(conf);
-
-}
-static int init_resync(conf_t *conf)
-{
-*** 1170,9 **** 8
- sector_t max_sector, nr_sectors;
- int disk, partial;
-=======
- max_sector = mddev->sb->size << 1;
->>>>>>>
nomem:
<<<<<<<
raid1_shrink_buffers(conf);
return -ENOMEM;
/*
=======
+ if (sector_nr == 0)
+ if (init_resync(conf))
+ return -ENOMEM;
+
+ max_sector = mddev->sb->size << 1;
if (sector_nr >= max_sector) {
close_sync(conf);
return 0;
--- /dev/null
+/*
+ * mdadm - manage Linux "md" devices aka RAID arrays.
+ *
+ * Copyright (C) 2001-2012 Neil Brown <neilb@suse.de>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Neil Brown
+ * Email: <neilb@suse.de>
+ *
+ * Additions for bitmap and write-behind RAID options, Copyright (C) 2003-2004,
+ * Paul Clements, SteelEye Technology, Inc.
+ */
+
+#include "mdadm.h"
+#include "md_p.h"
+#include <ctype.h>
+
+
+static int scan_assemble(struct supertype *ss,
+ struct context *c,
+ struct mddev_ident *ident);
+static int misc_scan(char devmode, struct context *c);
+static int stop_scan(int verbose);
+static int misc_list(struct mddev_dev *devlist,
+ struct mddev_ident *ident,
+ struct supertype *ss, struct context *c);
+
+
+int main(int argc, char *argv[])
+{
+ int mode = 0;
+ int opt;
+ int option_index;
+ int rv;
+ int i;
+
+ unsigned long long array_size = 0;
+ unsigned long long data_offset = INVALID_SECTORS;
+ struct mddev_ident ident;
+ char *configfile = NULL;
+ int devmode = 0;
+ int bitmap_fd = -1;
+ struct mddev_dev *devlist = NULL;
+ struct mddev_dev **devlistend = & devlist;
+ struct mddev_dev *dv;
+ int devs_found = 0;
+ char *symlinks = NULL;
+ int grow_continue = 0;
+ /* 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)
+ */
+ struct context c = {
+ .require_homehost = 1,
+ };
+ struct shape s = {
+ .level = UnSet,
+ .layout = UnSet,
+ .bitmap_chunk = UnSet,
+ };
+
+ char sys_hostname[256];
+ char *mailaddr = NULL;
+ char *program = NULL;
+ int increments = 20;
+ int daemonise = 0;
+ char *pidfile = NULL;
+ int oneshot = 0;
+ int spare_sharing = 1;
+ struct supertype *ss = NULL;
+ int writemostly = 0;
+ char *shortopt = short_options;
+ int dosyslog = 0;
+ int rebuild_map = 0;
+ char *remove_path = NULL;
+ char *udev_filename = NULL;
+
+ 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;
+ ident.container = NULL;
+ ident.member = NULL;
+
+ /*
+ * set first char of argv[0] to @. This is used by
+ * systemd to signal that the task was launched from
+ * initrd/initramfs and should be preserved during shutdown
+ */
+ argv[0][0] = '@';
+
+ while ((option_index = -1) ,
+ (opt=getopt_long(argc, argv,
+ shortopt, long_options,
+ &option_index)) != -1) {
+ int newmode = mode;
+ /* firstly, some mode-independent options */
+ switch(opt) {
+ case HelpOptions:
+ print_help = 2;
+ continue;
+ case 'h':
+ print_help = 1;
+ continue;
+
+ case 'V':
+ fputs(Version, stderr);
+ exit(0);
+
+ case 'v': c.verbose++;
+ continue;
+
+ case 'q': c.verbose--;
+ continue;
+
+ case 'b':
+ if (mode == ASSEMBLE || mode == BUILD || mode == CREATE
+ || mode == GROW || mode == INCREMENTAL
+ || mode == MANAGE)
+ break; /* b means bitmap */
+ case Brief:
+ c.brief = 1;
+ continue;
+
+ case 'Y': c.export++;
+ continue;
+
+ case HomeHost:
+ if (strcasecmp(optarg, "<ignore>") == 0)
+ c.require_homehost = 0;
+ else
+ c.homehost = optarg;
+ continue;
+
+ case Prefer:
+ if (c.prefer)
+ free(c.prefer);
+ if (asprintf(&c.prefer, "/%s/", optarg) <= 0)
+ c.prefer = NULL;
+ continue;
+
+ case ':':
+ case '?':
+ fputs(Usage, stderr);
+ exit(2);
+ }
+ /* second, figure out the mode.
+ * Some options force the mode. Others
+ * set the mode if it isn't already
+ */
+
+ switch(opt) {
+ case ManageOpt:
+ newmode = MANAGE;
+ shortopt = short_bitmap_options;
+ break;
+ case 'a':
+ case Add:
+ case 'r':
+ case Remove:
+ case Replace:
+ case With:
+ case 'f':
+ case Fail:
+ case ReAdd: /* re-add */
+ if (!mode) {
+ newmode = MANAGE;
+ shortopt = short_bitmap_options;
+ }
+ 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;
+ shortopt = short_bitmap_options;
+ break;
+ case 'I': newmode = INCREMENTAL;
+ shortopt = short_bitmap_auto_options;
+ break;
+ case AutoDetect:
+ newmode = AUTODETECT;
+ break;
+
+ case MiscOpt:
+ case 'D':
+ case 'E':
+ case 'X':
+ case 'Q':
+ case ExamineBB:
+ newmode = MISC;
+ break;
+
+ case 'R':
+ case 'S':
+ case 'o':
+ case 'w':
+ case 'W':
+ case WaitOpt:
+ case Waitclean:
+ case DetailPlatform:
+ case KillSubarray:
+ case UpdateSubarray:
+ case UdevRules:
+ case KillOpt:
+ if (!mode)
+ newmode = MISC;
+ break;
+
+ case NoSharing:
+ newmode = MONITOR;
+ break;
+ }
+ if (mode && newmode == mode) {
+ /* everybody happy ! */
+ } else if (mode && newmode != mode) {
+ /* not allowed.. */
+ pr_err("");
+ if (option_index >= 0)
+ fprintf(stderr, "--%s", long_options[option_index].name);
+ else
+ fprintf(stderr, "-%c", opt);
+ 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);
+ } else if (!mode && newmode) {
+ mode = newmode;
+ if (mode == MISC && devs_found) {
+ pr_err("No action given for %s in --misc mode\n",
+ devlist->devname);
+ fprintf(stderr," Action options must come before device names\n");
+ exit(2);
+ }
+ } else {
+ /* special case of -c --help */
+ if ((opt == 'c' || opt == ConfigFile) &&
+ ( strncmp(optarg, "--h", 3)==0 ||
+ strncmp(optarg, "-h", 2)==0)) {
+ 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 = xmalloc(sizeof(*dv));
+ dv->devname = optarg;
+ dv->disposition = devmode;
+ dv->writemostly = writemostly;
+ dv->used = 0;
+ dv->next = NULL;
+ *devlistend = dv;
+ devlistend = &dv->next;
+
+ devs_found++;
+ continue;
+ }
+ /* No mode yet, and this is the second device ... */
+ pr_err("An option must be given to set the mode before a second device\n"
+ " (%s) is listed\n", optarg);
+ exit(2);
+ }
+ if (option_index >= 0)
+ pr_err("--%s", long_options[option_index].name);
+ else
+ pr_err("-%c", opt);
+ fprintf(stderr, " does not set the mode, and so cannot be the first option.\n");
+ exit(2);
+ }
+
+ /* if we just set the mode, then done */
+ switch(opt) {
+ case ManageOpt:
+ case MiscOpt:
+ case 'A':
+ case 'B':
+ case 'C':
+ case 'F':
+ case 'G':
+ case 'I':
+ case AutoDetect:
+ continue;
+ }
+ if (opt == 1) {
+ /* an undecorated option - must be a device name.
+ */
+
+ if (devs_found > 0 && devmode == DetailPlatform) {
+ pr_err("controller may only be specified once. %s ignored\n",
+ optarg);
+ continue;
+ }
+
+ if (devs_found > 0 && mode == MANAGE && !devmode) {
+ pr_err("Must give one of -a/-r/-f"
+ " for subsequent devices at %s\n", optarg);
+ exit(2);
+ }
+ if (devs_found > 0 && mode == GROW && !devmode) {
+ pr_err("Must give -a/--add for"
+ " devices to add: %s\n", optarg);
+ exit(2);
+ }
+ dv = xmalloc(sizeof(*dv));
+ dv->devname = optarg;
+ dv->disposition = devmode;
+ dv->writemostly = writemostly;
+ dv->used = 0;
+ dv->next = NULL;
+ *devlistend = dv;
+ devlistend = &dv->next;
+
+ devs_found++;
+ continue;
+ }
+
+ /* We've got a mode, and opt is now something else which
+ * could depend on the mode */
+#define O(a,b) ((a<<16)|b)
+ switch (O(mode,opt)) {
+ case O(GROW,'c'):
+ case O(GROW,ChunkSize):
+ case O(CREATE,'c'):
+ case O(CREATE,ChunkSize):
+ case O(BUILD,'c'): /* chunk or rounding */
+ case O(BUILD,ChunkSize): /* chunk or rounding */
+ if (s.chunk) {
+ pr_err("chunk/rounding may only be specified once. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ s.chunk = parse_size(optarg);
+ if (s.chunk == INVALID_SECTORS ||
+ s.chunk < 8 || (s.chunk&1)) {
+ pr_err("invalid chunk/rounding value: %s\n",
+ optarg);
+ exit(2);
+ }
+ /* Convert sectors to K */
+ s.chunk /= 2;
+ continue;
+
+ case O(INCREMENTAL, 'e'):
+ case O(CREATE,'e'):
+ case O(ASSEMBLE,'e'):
+ case O(MISC,'e'): /* set metadata (superblock) information */
+ if (ss) {
+ pr_err("metadata information already given\n");
+ exit(2);
+ }
+ for(i=0; !ss && superlist[i]; i++)
+ ss = superlist[i]->match_metadata_desc(optarg);
+
+ if (!ss) {
+ pr_err("unrecognised metadata identifier: %s\n", optarg);
+ exit(2);
+ }
+ continue;
+
+ case O(MANAGE,'W'):
+ case O(MANAGE,WriteMostly):
+ case O(BUILD,'W'):
+ case O(BUILD,WriteMostly):
+ case O(CREATE,'W'):
+ case O(CREATE,WriteMostly):
+ /* set write-mostly for following devices */
+ writemostly = 1;
+ continue;
+
+ case O(MANAGE,'w'):
+ /* clear write-mostly for following devices */
+ writemostly = 2;
+ continue;
+
+
+ case O(GROW,'z'):
+ case O(CREATE,'z'):
+ case O(BUILD,'z'): /* size */
+ if (s.size > 0) {
+ pr_err("size may only be specified once. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ if (strcmp(optarg, "max")==0)
+ s.size = MAX_SIZE;
+ else {
+ s.size = parse_size(optarg);
+ if (s.size == INVALID_SECTORS ||
+ s.size < 8) {
+ pr_err("invalid size: %s\n",
+ optarg);
+ exit(2);
+ }
+ /* convert sectors to K */
+ s.size /= 2;
+ }
+ continue;
+
+ case O(GROW,'Z'): /* array size */
+ if (array_size > 0) {
+ pr_err("array-size may only be specified once. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ if (strcmp(optarg, "max") == 0)
+ array_size = MAX_SIZE;
+ else {
+ array_size = parse_size(optarg);
+ if (array_size == 0 ||
+ array_size == INVALID_SECTORS) {
+ pr_err("invalid array size: %s\n",
+ optarg);
+ exit(2);
+ }
+ }
+ continue;
+
+ case O(CREATE,DataOffset):
+ case O(GROW,DataOffset):
+ if (data_offset != INVALID_SECTORS) {
+ fprintf(stderr, Name ": data-offset may only be specified one. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ if (mode == CREATE &&
+ strcmp(optarg, "variable") == 0)
+ data_offset = VARIABLE_OFFSET;
+ else
+ data_offset = parse_size(optarg);
+ if (data_offset == INVALID_SECTORS) {
+ fprintf(stderr, Name ": invalid data-offset: %s\n",
+ optarg);
+ exit(2);
+ }
+ continue;
+
+ case O(GROW,'l'):
+ case O(CREATE,'l'):
+ case O(BUILD,'l'): /* set raid level*/
+ if (s.level != UnSet) {
+ pr_err("raid level may only be set once. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ s.level = map_name(pers, optarg);
+ if (s.level == UnSet) {
+ pr_err("invalid raid level: %s\n",
+ optarg);
+ exit(2);
+ }
+ if (s.level != 0 && s.level != LEVEL_LINEAR && s.level != 1 &&
+ s.level != LEVEL_MULTIPATH && s.level != LEVEL_FAULTY &&
+ s.level != 10 &&
+ mode == BUILD) {
+ pr_err("Raid level %s not permitted with --build.\n",
+ optarg);
+ exit(2);
+ }
+ if (s.sparedisks > 0 && s.level < 1 && s.level >= -1) {
+ pr_err("raid level %s is incompatible with spare-devices setting.\n",
+ optarg);
+ exit(2);
+ }
+ ident.level = s.level;
+ continue;
+
+ case O(GROW, 'p'): /* new layout */
+ case O(GROW, Layout):
+ if (s.layout_str) {
+ pr_err("layout may only be sent once. "
+ "Second value was %s\n", optarg);
+ exit(2);
+ }
+ s.layout_str = optarg;
+ /* 'Grow' will parse the value */
+ continue;
+
+ case O(CREATE,'p'): /* raid5 layout */
+ case O(CREATE,Layout):
+ case O(BUILD,'p'): /* faulty layout */
+ case O(BUILD,Layout):
+ if (s.layout != UnSet) {
+ pr_err("layout may only be sent once. "
+ "Second value was %s\n", optarg);
+ exit(2);
+ }
+ switch(s.level) {
+ default:
+ pr_err("layout not meaningful for %s arrays.\n",
+ map_num(pers, s.level));
+ exit(2);
+ case UnSet:
+ pr_err("raid level must be given before layout.\n");
+ exit(2);
+
+ case 5:
+ s.layout = map_name(r5layout, optarg);
+ if (s.layout==UnSet) {
+ pr_err("layout %s not understood for raid5.\n",
+ optarg);
+ exit(2);
+ }
+ break;
+ case 6:
+ s.layout = map_name(r6layout, optarg);
+ if (s.layout==UnSet) {
+ pr_err("layout %s not understood for raid6.\n",
+ optarg);
+ exit(2);
+ }
+ break;
+
+ case 10:
+ s.layout = parse_layout_10(optarg);
+ if (s.layout < 0) {
+ pr_err("layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg);
+ exit(2);
+ }
+ break;
+ case LEVEL_FAULTY:
+ /* Faulty
+ * modeNNN
+ */
+ s.layout = parse_layout_faulty(optarg);
+ if (s.layout == -1) {
+ pr_err("layout %s not understood for faulty.\n",
+ optarg);
+ exit(2);
+ }
+ break;
+ }
+ continue;
+
+ case O(CREATE,AssumeClean):
+ case O(BUILD,AssumeClean): /* assume clean */
+ case O(GROW,AssumeClean):
+ s.assume_clean = 1;
+ continue;
+
+ case O(GROW,'n'):
+ case O(CREATE,'n'):
+ case O(BUILD,'n'): /* number of raid disks */
+ if (s.raiddisks) {
+ pr_err("raid-devices set twice: %d and %s\n",
+ s.raiddisks, optarg);
+ exit(2);
+ }
+ s.raiddisks = parse_num(optarg);
+ if (s.raiddisks <= 0) {
+ pr_err("invalid number of raid devices: %s\n",
+ optarg);
+ exit(2);
+ }
+ ident.raid_disks = s.raiddisks;
+ continue;
+
+ case O(CREATE,'x'): /* number of spare (eXtra) disks */
+ if (s.sparedisks) {
+ pr_err("spare-devices set twice: %d and %s\n",
+ s.sparedisks, optarg);
+ exit(2);
+ }
+ if (s.level != UnSet && s.level <= 0 && s.level >= -1) {
+ pr_err("spare-devices setting is incompatible with raid level %d\n",
+ s.level);
+ exit(2);
+ }
+ s.sparedisks = parse_num(optarg);
+ if (s.sparedisks < 0) {
+ pr_err("invalid number of spare-devices: %s\n",
+ optarg);
+ exit(2);
+ }
+ continue;
+
+ case O(CREATE,'a'):
+ case O(CREATE,Auto):
+ case O(BUILD,'a'):
+ case O(BUILD,Auto):
+ case O(INCREMENTAL,'a'):
+ case O(INCREMENTAL,Auto):
+ case O(ASSEMBLE,'a'):
+ case O(ASSEMBLE,Auto): /* auto-creation of device node */
+ c.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(BUILD,Force): /* force honouring '-n 1' */
+ case O(GROW,'f'): /* ditto */
+ case O(GROW,Force): /* ditto */
+ case O(CREATE,'f'): /* force honouring of device list */
+ case O(CREATE,Force): /* force honouring of device list */
+ case O(ASSEMBLE,'f'): /* force assembly */
+ case O(ASSEMBLE,Force): /* force assembly */
+ case O(MISC,'f'): /* force zero */
+ case O(MISC,Force): /* force zero */
+ case O(MANAGE,Force): /* add device which is too large */
+ c.force=1;
+ continue;
+ /* now for the Assemble options */
+ case O(ASSEMBLE, FreezeReshape): /* Freeze reshape during
+ * initrd phase */
+ case O(INCREMENTAL, FreezeReshape):
+ c.freeze_reshape = 1;
+ continue;
+ case O(CREATE,'u'): /* uuid of array */
+ case O(ASSEMBLE,'u'): /* uuid of array */
+ if (ident.uuid_set) {
+ pr_err("uuid cannot be set twice. "
+ "Second value %s.\n", optarg);
+ exit(2);
+ }
+ if (parse_uuid(optarg, ident.uuid))
+ ident.uuid_set = 1;
+ else {
+ pr_err("Bad uuid: %s\n", optarg);
+ exit(2);
+ }
+ continue;
+
+ case O(CREATE,'N'):
+ case O(ASSEMBLE,'N'):
+ case O(MISC,'N'):
+ if (ident.name[0]) {
+ pr_err("name cannot be set twice. "
+ "Second value %s.\n", optarg);
+ exit(2);
+ }
+ if (mode == MISC && !c.subarray) {
+ pr_err("-N/--name only valid with --update-subarray in misc mode\n");
+ exit(2);
+ }
+ if (strlen(optarg) > 32) {
+ pr_err("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 */
+ case O(ASSEMBLE,SuperMinor):
+ if (ident.super_minor != UnSet) {
+ pr_err("super-minor cannot be set twice. "
+ "Second value: %s.\n", optarg);
+ exit(2);
+ }
+ if (strcmp(optarg, "dev")==0)
+ ident.super_minor = -2;
+ else {
+ ident.super_minor = parse_num(optarg);
+ if (ident.super_minor < 0) {
+ pr_err("Bad super-minor number: %s.\n", optarg);
+ exit(2);
+ }
+ }
+ continue;
+
+ case O(ASSEMBLE,'o'):
+ case O(MANAGE,'o'):
+ case O(CREATE,'o'):
+ c.readonly = 1;
+ continue;
+
+ case O(ASSEMBLE,'U'): /* update the superblock */
+ case O(MISC,'U'):
+ if (c.update) {
+ pr_err("Can only update one aspect"
+ " of superblock, both %s and %s given.\n",
+ c.update, optarg);
+ exit(2);
+ }
+ if (mode == MISC && !c.subarray) {
+ pr_err("Only subarrays can be"
+ " updated in misc mode\n");
+ exit(2);
+ }
+ c.update = optarg;
+ if (strcmp(c.update, "sparc2.2")==0)
+ continue;
+ if (strcmp(c.update, "super-minor") == 0)
+ continue;
+ if (strcmp(c.update, "summaries")==0)
+ continue;
+ if (strcmp(c.update, "resync")==0)
+ continue;
+ if (strcmp(c.update, "uuid")==0)
+ continue;
+ if (strcmp(c.update, "name")==0)
+ continue;
+ if (strcmp(c.update, "homehost")==0)
+ continue;
+ if (strcmp(c.update, "devicesize")==0)
+ continue;
+ if (strcmp(c.update, "no-bitmap")==0)
+ continue;
+ if (strcmp(c.update, "bbl") == 0)
+ continue;
+ if (strcmp(c.update, "no-bbl") == 0)
+ continue;
+ if (strcmp(c.update, "byteorder")==0) {
+ if (ss) {
+ pr_err("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) {
+ pr_err("INTERNAL ERROR"
+ " cannot find 0.swap\n");
+ exit(2);
+ }
+
+ continue;
+ }
+ if (strcmp(c.update,"?") == 0 ||
+ strcmp(c.update, "help") == 0) {
+ outf = stdout;
+ fprintf(outf, Name ": ");
+ } else {
+ outf = stderr;
+ fprintf(outf,
+ Name ": '--update=%s' is invalid. ",
+ c.update);
+ }
+ fprintf(outf, "Valid --update options are:\n"
+ " 'sparc2.2', 'super-minor', 'uuid', 'name', 'resync',\n"
+ " 'summaries', 'homehost', 'byteorder', 'devicesize',\n"
+ " 'no-bitmap'\n");
+ exit(outf == stdout ? 0 : 2);
+
+ case O(MANAGE,'U'):
+ /* update=devicesize is allowed with --re-add */
+ if (devmode != 'A') {
+ pr_err("--update in Manage mode only"
+ " allowed with --re-add.\n");
+ exit(1);
+ }
+ if (c.update) {
+ pr_err("Can only update one aspect"
+ " of superblock, both %s and %s given.\n",
+ c.update, optarg);
+ exit(2);
+ }
+ c.update = optarg;
+ if (strcmp(c.update, "devicesize") != 0 &&
+ strcmp(c.update, "bbl") != 0 &&
+ strcmp(c.update, "no-bbl") != 0) {
+ pr_err("only 'devicesize', 'bbl' and 'no-bbl' can be"
+ " updated with --re-add\n");
+ exit(2);
+ }
+ continue;
+
+ case O(INCREMENTAL,NoDegraded):
+ pr_err("--no-degraded is deprecated in Incremental mode\n");
+ case O(ASSEMBLE,NoDegraded): /* --no-degraded */
+ c.runstop = -1; /* --stop isn't allowed for --assemble,
+ * so we overload slightly */
+ continue;
+
+ case O(ASSEMBLE,'c'):
+ case O(ASSEMBLE,ConfigFile):
+ case O(INCREMENTAL, 'c'):
+ case O(INCREMENTAL, ConfigFile):
+ case O(MISC, 'c'):
+ case O(MISC, ConfigFile):
+ case O(MONITOR,'c'):
+ case O(MONITOR,ConfigFile):
+ if (configfile) {
+ pr_err("configfile cannot be set twice. "
+ "Second value is %s.\n", optarg);
+ 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'):
+ c.scan = 1;
+ continue;
+
+ case O(MONITOR,'m'): /* mail address */
+ case O(MONITOR,EMail):
+ if (mailaddr)
+ pr_err("only specify one mailaddress. %s ignored.\n",
+ optarg);
+ else
+ mailaddr = optarg;
+ continue;
+
+ case O(MONITOR,'p'): /* alert program */
+ case O(MONITOR,ProgramOpt): /* alert program */
+ if (program)
+ pr_err("only specify one alter program. %s ignored.\n",
+ optarg);
+ else
+ program = optarg;
+ continue;
+
+ case O(MONITOR,'r'): /* rebuild increments */
+ case O(MONITOR,Increment):
+ increments = atoi(optarg);
+ if (increments > 99 || increments < 1) {
+ pr_err("please specify positive integer between 1 and 99 as rebuild increments.\n");
+ exit(2);
+ }
+ 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 (c.delay)
+ pr_err("only specify delay once. %s ignored.\n",
+ optarg);
+ else {
+ c.delay = parse_num(optarg);
+ if (c.delay < 1) {
+ pr_err("invalid delay: %s\n",
+ optarg);
+ exit(2);
+ }
+ }
+ continue;
+ case O(MONITOR,'f'): /* daemonise */
+ case O(MONITOR,Fork):
+ daemonise = 1;
+ continue;
+ case O(MONITOR,'i'): /* pid */
+ if (pidfile)
+ pr_err("only specify one pid file. %s ignored.\n",
+ optarg);
+ else
+ pidfile = optarg;
+ continue;
+ case O(MONITOR,'1'): /* oneshot */
+ oneshot = 1;
+ spare_sharing = 0;
+ continue;
+ case O(MONITOR,'t'): /* test */
+ c.test = 1;
+ continue;
+ case O(MONITOR,'y'): /* log messages to syslog */
+ openlog("mdadm", LOG_PID, SYSLOG_FACILITY);
+ dosyslog = 1;
+ continue;
+ case O(MONITOR, NoSharing):
+ spare_sharing = 0;
+ continue;
+
+ /* now the general management options. Some are applicable
+ * to other modes. None have arguments.
+ */
+ case O(GROW,'a'):
+ case O(GROW,Add):
+ case O(MANAGE,'a'):
+ case O(MANAGE,Add): /* add a drive */
+ devmode = 'a';
+ continue;
+ case O(MANAGE,ReAdd):
+ devmode = 'A';
+ continue;
+ case O(MANAGE,'r'): /* remove a drive */
+ case O(MANAGE,Remove):
+ devmode = 'r';
+ continue;
+ case O(MANAGE,'f'): /* set faulty */
+ case O(MANAGE,Fail):
+ case O(INCREMENTAL,'f'):
+ case O(INCREMENTAL,Remove):
+ case O(INCREMENTAL,Fail): /* r for incremental is taken, use f
+ * even though we will both fail and
+ * remove the device */
+ devmode = 'f';
+ continue;
+ case O(MANAGE,Replace):
+ /* Mark these devices for replacement */
+ devmode = 'R';
+ continue;
+ case O(MANAGE,With):
+ /* These are the replacements to use */
+ if (devmode != 'R') {
+ pr_err("--with must follow --replace\n");
+ exit(2);
+ }
+ devmode = 'W';
+ continue;
+ case O(INCREMENTAL,'R'):
+ case O(MANAGE,'R'):
+ case O(ASSEMBLE,'R'):
+ case O(BUILD,'R'):
+ case O(CREATE,'R'): /* Run the array */
+ if (c.runstop < 0) {
+ pr_err("Cannot both Stop and Run an array\n");
+ exit(2);
+ }
+ c.runstop = 1;
+ continue;
+ case O(MANAGE,'S'):
+ if (c.runstop > 0) {
+ pr_err("Cannot both Run and Stop an array\n");
+ exit(2);
+ }
+ c.runstop = -1;
+ continue;
+ case O(MANAGE,'t'):
+ c.test = 1;
+ continue;
+
+ case O(MISC,'Q'):
+ case O(MISC,'D'):
+ case O(MISC,'E'):
+ case O(MISC,KillOpt):
+ case O(MISC,'R'):
+ case O(MISC,'S'):
+ case O(MISC,'X'):
+ case O(MISC, ExamineBB):
+ case O(MISC,'o'):
+ case O(MISC,'w'):
+ case O(MISC,'W'):
+ case O(MISC, WaitOpt):
+ case O(MISC, Waitclean):
+ case O(MISC, DetailPlatform):
+ case O(MISC, KillSubarray):
+ case O(MISC, UpdateSubarray):
+ if (opt == KillSubarray || opt == UpdateSubarray) {
+ if (c.subarray) {
+ pr_err("subarray can only"
+ " be specified once\n");
+ exit(2);
+ }
+ c.subarray = optarg;
+ }
+ if (devmode && devmode != opt &&
+ (devmode == 'E' || (opt == 'E' && devmode != 'Q'))) {
+ pr_err("--examine/-E cannot be given with ");
+ if (devmode == 'E') {
+ if (option_index >= 0)
+ fprintf(stderr, "--%s\n",
+ long_options[option_index].name);
+ else
+ fprintf(stderr, "-%c\n", opt);
+ } else if (isalpha(devmode))
+ fprintf(stderr, "-%c\n", devmode);
+ else
+ fprintf(stderr, "previous option\n");
+ exit(2);
+ }
+ devmode = opt;
+ continue;
+ case O(MISC, UdevRules):
+ if (devmode && devmode != opt) {
+ pr_err("--udev-rules must"
+ " be the only option.\n");
+ } else {
+ if (udev_filename)
+ pr_err("only specify one udev "
+ "rule filename. %s ignored.\n",
+ optarg);
+ else
+ udev_filename = optarg;
+ }
+ devmode = opt;
+ continue;
+ case O(MISC,'t'):
+ c.test = 1;
+ continue;
+
+ case O(MISC, Sparc22):
+ if (devmode != 'E') {
+ pr_err("--sparc2.2 only allowed with --examine\n");
+ exit(2);
+ }
+ c.SparcAdjust = 1;
+ continue;
+
+ case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */
+ case O(ASSEMBLE,Bitmap):
+ if (!optarg) {
+ pr_err("bitmap file needed with -b in --assemble mode\n");
+ exit(2);
+ }
+ if (strcmp(optarg, "internal")==0) {
+ pr_err("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) {
+ pr_err("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 (c.backup_file) {
+ pr_err("backup file already specified, rejecting %s\n", optarg);
+ exit(2);
+ }
+ c.backup_file = optarg;
+ continue;
+
+ case O(GROW, Continue):
+ /* Continue interrupted grow
+ */
+ grow_continue = 1;
+ continue;
+ case O(ASSEMBLE, InvalidBackup):
+ /* Acknowledge that the backupfile is invalid, but ask
+ * to continue anyway
+ */
+ c.invalid_backup = 1;
+ continue;
+
+ case O(BUILD,'b'):
+ case O(BUILD,Bitmap):
+ case O(CREATE,'b'):
+ case O(CREATE,Bitmap): /* here we create the bitmap */
+ if (strcmp(optarg, "none") == 0) {
+ pr_err("'--bitmap none' only"
+ " supported for --grow\n");
+ exit(2);
+ }
+ /* FALL THROUGH */
+ case O(GROW,'b'):
+ case O(GROW,Bitmap):
+ if (strcmp(optarg, "internal")== 0 ||
+ strcmp(optarg, "none")== 0 ||
+ strchr(optarg, '/') != NULL) {
+ s.bitmap_file = optarg;
+ continue;
+ }
+ /* probable typo */
+ pr_err("bitmap file must contain a '/', or be 'internal', or 'none'\n"
+ " not '%s'\n", optarg);
+ exit(2);
+
+ case O(GROW,BitmapChunk):
+ case O(BUILD,BitmapChunk):
+ case O(CREATE,BitmapChunk): /* bitmap chunksize */
+ s.bitmap_chunk = parse_size(optarg);
+ if (s.bitmap_chunk == 0 ||
+ s.bitmap_chunk == INVALID_SECTORS ||
+ s.bitmap_chunk & (s.bitmap_chunk - 1)) {
+ pr_err("invalid bitmap chunksize: %s\n",
+ optarg);
+ exit(2);
+ }
+ s.bitmap_chunk = s.bitmap_chunk * 512;
+ continue;
+
+ case O(GROW, WriteBehind):
+ case O(BUILD, WriteBehind):
+ case O(CREATE, WriteBehind): /* write-behind mode */
+ s.write_behind = DEFAULT_MAX_WRITE_BEHIND;
+ if (optarg) {
+ s.write_behind = parse_num(optarg);
+ if (s.write_behind < 0 ||
+ s.write_behind > 16383) {
+ pr_err("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'):
+ case O(INCREMENTAL, RebuildMapOpt):
+ rebuild_map = 1;
+ continue;
+ case O(INCREMENTAL, IncrementalPath):
+ remove_path = optarg;
+ continue;
+ }
+ /* We have now processed all the valid options. Anything else is
+ * an error
+ */
+ if (option_index > 0)
+ pr_err(":option --%s not valid in %s mode\n",
+ long_options[option_index].name,
+ map_num(modes, mode));
+ else
+ pr_err("option -%c not valid in %s mode\n",
+ opt, map_num(modes, mode));
+ exit(2);
+
+ }
+
+ if (print_help) {
+ char *help_text;
+ if (print_help == 2)
+ help_text = OptionHelp;
+ else
+ help_text = mode_help[mode];
+ if (help_text == NULL)
+ help_text = Help;
+ 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 {
+ pr_err("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
+ *
+ * That is mosty checked in the per-mode stuff but...
+ *
+ * For @,B,C and A without -s, the first device listed must be
+ * an md device. We check that here and open it.
+ */
+
+ if (mode == MANAGE || mode == BUILD || mode == CREATE
+ || mode == GROW
+ || (mode == ASSEMBLE && ! c.scan)) {
+ if (devs_found < 1) {
+ pr_err("an md device must be given in this mode\n");
+ exit(2);
+ }
+ if ((int)ident.super_minor == -2 && c.autof) {
+ pr_err("--super-minor=dev is incompatible with --auto\n");
+ exit(2);
+ }
+ if (mode == MANAGE || mode == GROW) {
+ mdfd = open_mddev(devlist->devname, 1);
+ if (mdfd < 0)
+ exit(1);
+ } else
+ /* non-existent device is OK */
+ mdfd = open_mddev(devlist->devname, 0);
+ if (mdfd == -2) {
+ pr_err("device %s exists but is not an "
+ "md array.\n", devlist->devname);
+ exit(1);
+ }
+ if ((int)ident.super_minor == -2) {
+ struct stat stb;
+ if (mdfd < 0) {
+ pr_err("--super-minor=dev given, and "
+ "listed device %s doesn't exist.\n",
+ devlist->devname);
+ exit(1);
+ }
+ fstat(mdfd, &stb);
+ ident.super_minor = minor(stb.st_rdev);
+ }
+ if (mdfd >= 0 && mode != MANAGE && mode != GROW) {
+ /* We don't really want this open yet, we just might
+ * have wanted to check some things
+ */
+ close(mdfd);
+ mdfd = -1;
+ }
+ }
+
+ if (s.raiddisks) {
+ if (s.raiddisks == 1 && !c.force && s.level != LEVEL_FAULTY) {
+ pr_err("'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 (c.homehost == NULL)
+ c.homehost = conf_get_homehost(&c.require_homehost);
+ if (c.homehost == NULL || strcasecmp(c.homehost, "<system>")==0) {
+ if (gethostname(sys_hostname, sizeof(sys_hostname)) == 0) {
+ sys_hostname[sizeof(sys_hostname)-1] = 0;
+ c.homehost = sys_hostname;
+ }
+ }
+ if (c.homehost && (!c.homehost[0] || strcasecmp(c.homehost, "<none>") == 0)) {
+ c.homehost = NULL;
+ c.require_homehost = 0;
+ }
+
+ if ((mode == MISC && devmode == 'E')
+ || (mode == MONITOR && spare_sharing == 0))
+ /* Anyone may try this */;
+ else if (geteuid() != 0) {
+ pr_err("must be super-user to perform this action\n");
+ exit(1);
+ }
+
+ ident.autof = c.autof;
+
+ if (c.scan && c.verbose < 2)
+ /* --scan implied --brief unless -vv */
+ c.brief = 1;
+
+ rv = 0;
+ switch(mode) {
+ case MANAGE:
+ /* readonly, add/remove, readwrite, runstop */
+ if (c.readonly > 0)
+ rv = Manage_ro(devlist->devname, mdfd, c.readonly);
+ if (!rv && devs_found>1)
+ rv = Manage_subdevs(devlist->devname, mdfd,
+ devlist->next, c.verbose, c.test,
+ c.update, c.force);
+ if (!rv && c.readonly < 0)
+ rv = Manage_ro(devlist->devname, mdfd, c.readonly);
+ if (!rv && c.runstop)
+ rv = Manage_runstop(devlist->devname, mdfd, c.runstop, c.verbose, 0);
+ break;
+ case ASSEMBLE:
+ if (devs_found == 1 && ident.uuid_set == 0 &&
+ ident.super_minor == UnSet && ident.name[0] == 0 && !c.scan ) {
+ /* Only a device has been given, so get details from config file */
+ struct mddev_ident *array_ident = conf_get_ident(devlist->devname);
+ if (array_ident == NULL) {
+ pr_err("%s not identified in config file.\n",
+ devlist->devname);
+ rv |= 1;
+ if (mdfd >= 0)
+ close(mdfd);
+ } else {
+ if (array_ident->autof == 0)
+ array_ident->autof = c.autof;
+ rv |= Assemble(ss, devlist->devname, array_ident,
+ NULL, &c);
+ }
+ } else if (!c.scan)
+ rv = Assemble(ss, devlist->devname, &ident,
+ devlist->next, &c);
+ else if (devs_found > 0) {
+ if (c.update && devs_found > 1) {
+ pr_err("can only update a single array at a time\n");
+ exit(1);
+ }
+ if (c.backup_file && devs_found > 1) {
+ pr_err("can only assemble a single array when providing a backup file.\n");
+ exit(1);
+ }
+ for (dv = devlist ; dv ; dv=dv->next) {
+ struct mddev_ident *array_ident = conf_get_ident(dv->devname);
+ if (array_ident == NULL) {
+ pr_err("%s not identified in config file.\n",
+ dv->devname);
+ rv |= 1;
+ continue;
+ }
+ if (array_ident->autof == 0)
+ array_ident->autof = c.autof;
+ rv |= Assemble(ss, dv->devname, array_ident,
+ NULL, &c);
+ }
+ } else {
+ if (c.update) {
+ pr_err("--update not meaningful with a --scan assembly.\n");
+ exit(1);
+ }
+ if (c.backup_file) {
+ pr_err("--backup_file not meaningful with a --scan assembly.\n");
+ exit(1);
+ }
+ rv = scan_assemble(ss, &c, &ident);
+ }
+
+ break;
+ case BUILD:
+ if (c.delay == 0)
+ c.delay = DEFAULT_BITMAP_DELAY;
+ if (s.write_behind && !s.bitmap_file) {
+ pr_err("write-behind mode requires a bitmap.\n");
+ rv = 1;
+ break;
+ }
+ if (s.raiddisks == 0) {
+ pr_err("no raid-devices specified.\n");
+ rv = 1;
+ break;
+ }
+
+ if (s.bitmap_file) {
+ if (strcmp(s.bitmap_file, "internal")==0) {
+ pr_err("'internal' bitmaps not supported with --build\n");
+ rv |= 1;
+ break;
+ }
+ }
+ rv = Build(devlist->devname, devlist->next, &s, &c);
+ break;
+ case CREATE:
+ if (c.delay == 0)
+ c.delay = DEFAULT_BITMAP_DELAY;
+ if (s.write_behind && !s.bitmap_file) {
+ pr_err("write-behind mode requires a bitmap.\n");
+ rv = 1;
+ break;
+ }
+ if (s.raiddisks == 0) {
+ pr_err("no raid-devices specified.\n");
+ rv = 1;
+ break;
+ }
+
+ rv = Create(ss, devlist->devname,
+ ident.name, ident.uuid_set ? ident.uuid : NULL,
+ devs_found-1, devlist->next,
+ &s, &c, data_offset);
+ break;
+ case MISC:
+ if (devmode == 'E') {
+ if (devlist == NULL && !c.scan) {
+ pr_err("No devices to examine\n");
+ exit(2);
+ }
+ if (devlist == NULL)
+ devlist = conf_get_devs();
+ if (devlist == NULL) {
+ pr_err("No devices listed in %s\n", configfile?configfile:DefaultConfFile);
+ exit(1);
+ }
+ rv = Examine(devlist, &c, ss);
+ } else if (devmode == DetailPlatform) {
+ rv = Detail_Platform(ss ? ss->ss : NULL, ss ? c.scan : 1,
+ c.verbose, c.export,
+ devlist ? devlist->devname : NULL);
+ } else if (devlist == NULL) {
+ if (devmode == 'S' && c.scan)
+ rv = stop_scan(c.verbose);
+ else if ((devmode == 'D' || devmode == Waitclean) && c.scan)
+ rv = misc_scan(devmode, &c);
+ else if (devmode == UdevRules)
+ rv = Write_rules(udev_filename);
+ else {
+ pr_err("No devices given.\n");
+ exit(2);
+ }
+ } else
+ rv = misc_list(devlist, &ident, ss, &c);
+ break;
+ case MONITOR:
+ if (!devlist && !c.scan) {
+ pr_err("Cannot monitor: need --scan or at least one device\n");
+ rv = 1;
+ break;
+ }
+ if (pidfile && !daemonise) {
+ pr_err("Cannot write a pid file when not in daemon mode\n");
+ rv = 1;
+ break;
+ }
+ if (c.delay == 0) {
+ if (get_linux_version() > 2006016)
+ /* mdstat responds to poll */
+ c.delay = 1000;
+ else
+ c.delay = 60;
+ }
+ if (c.delay == 0)
+ c.delay = 60;
+ rv= Monitor(devlist, mailaddr, program,
+ &c, daemonise, oneshot,
+ dosyslog, pidfile, increments,
+ spare_sharing);
+ break;
+
+ case GROW:
+ if (array_size > 0) {
+ /* alway impose array size first, independent of
+ * anything else
+ * Do not allow level or raid_disks changes at the
+ * same time as that can be irreversibly destructive.
+ */
+ struct mdinfo sra;
+ int err;
+ if (s.raiddisks || s.level != UnSet) {
+ pr_err("cannot change array size in same operation "
+ "as changing raiddisks or level.\n"
+ " Change size first, then check that data is still intact.\n");
+ rv = 1;
+ break;
+ }
+ sysfs_init(&sra, mdfd, 0);
+ if (array_size == MAX_SIZE)
+ err = sysfs_set_str(&sra, NULL, "array_size", "default");
+ else
+ err = sysfs_set_num(&sra, NULL, "array_size", array_size / 2);
+ if (err < 0) {
+ if (errno == E2BIG)
+ pr_err("--array-size setting"
+ " is too large.\n");
+ else
+ pr_err("current kernel does"
+ " not support setting --array-size\n");
+ rv = 1;
+ break;
+ }
+ }
+ if (devs_found > 1 && s.raiddisks == 0) {
+ /* must be '-a'. */
+ if (s.size > 0 || s.chunk || s.layout_str != NULL || s.bitmap_file) {
+ pr_err("--add cannot be used with "
+ "other geometry changes in --grow mode\n");
+ rv = 1;
+ break;
+ }
+ for (dv=devlist->next; dv ; dv=dv->next) {
+ rv = Grow_Add_device(devlist->devname, mdfd,
+ dv->devname);
+ if (rv)
+ break;
+ }
+ } else if (s.bitmap_file) {
+ if (s.size > 0 || s.raiddisks || s.chunk ||
+ s.layout_str != NULL || devs_found > 1) {
+ pr_err("--bitmap changes cannot be "
+ "used with other geometry changes "
+ "in --grow mode\n");
+ rv = 1;
+ break;
+ }
+ if (c.delay == 0)
+ c.delay = DEFAULT_BITMAP_DELAY;
+ rv = Grow_addbitmap(devlist->devname, mdfd, &c, &s);
+ } else if (grow_continue)
+ rv = Grow_continue_command(devlist->devname,
+ mdfd, c.backup_file,
+ c.verbose);
+ else if (s.size > 0 || s.raiddisks || s.layout_str != NULL
+ || s.chunk != 0 || s.level != UnSet) {
+ rv = Grow_reshape(devlist->devname, mdfd,
+ devlist->next,
+ data_offset, &c, &s);
+ } else if (array_size == 0)
+ pr_err("no changes to --grow\n");
+ break;
+ case INCREMENTAL:
+ if (rebuild_map) {
+ RebuildMap();
+ }
+ if (c.scan) {
+ if (c.runstop <= 0) {
+ pr_err("--incremental --scan meaningless without --run.\n");
+ break;
+ }
+ if (devmode == 'f') {
+ pr_err("--incremental --scan --fail not supported.\n");
+ break;
+ }
+ rv = IncrementalScan(c.verbose);
+ }
+ if (!devlist) {
+ if (!rebuild_map && !c.scan) {
+ pr_err("--incremental requires a device.\n");
+ rv = 1;
+ }
+ break;
+ }
+ if (devlist->next) {
+ pr_err("--incremental can only handle one device.\n");
+ rv = 1;
+ break;
+ }
+ if (devmode == 'f')
+ rv = IncrementalRemove(devlist->devname, remove_path,
+ c.verbose);
+ else
+ rv = Incremental(devlist->devname, &c, ss);
+ break;
+ case AUTODETECT:
+ autodetect();
+ break;
+ }
+ exit(rv);
+}
+
+static int scan_assemble(struct supertype *ss,
+ struct context *c,
+ struct mddev_ident *ident)
+{
+ struct mddev_ident *a, *array_list = conf_get_ident(NULL);
+ struct mddev_dev *devlist = conf_get_devs();
+ struct map_ent *map = NULL;
+ int cnt = 0;
+ int rv = 0;
+ int failures, successes;
+
+ if (conf_verify_devnames(array_list)) {
+ pr_err("Duplicate MD device names in "
+ "conf file were found.\n");
+ return 1;
+ }
+ if (devlist == NULL) {
+ pr_err("No devices listed in conf file were found.\n");
+ return 1;
+ }
+ for (a = array_list; a ; a = a->next) {
+ a->assembled = 0;
+ if (a->autof == 0)
+ a->autof = c->autof;
+ }
+ if (map_lock(&map))
+ pr_err("%s: failed to get "
+ "exclusive lock on mapfile\n",
+ __func__);
+ do {
+ failures = 0;
+ successes = 0;
+ rv = 0;
+ for (a = array_list; a ; a = a->next) {
+ int r;
+ if (a->assembled)
+ continue;
+ if (a->devname &&
+ strcasecmp(a->devname, "<ignore>") == 0)
+ continue;
+
+ r = Assemble(ss, a->devname,
+ a, NULL, c);
+ if (r == 0) {
+ a->assembled = 1;
+ successes++;
+ } else
+ failures++;
+ rv |= r;
+ cnt++;
+ }
+ } while (failures && successes);
+ if (c->homehost && cnt == 0) {
+ /* Maybe we can auto-assemble something.
+ * Repeatedly call Assemble in auto-assemble mode
+ * until it fails
+ */
+ int rv2;
+ int acnt;
+ ident->autof = c->autof;
+ do {
+ struct mddev_dev *devlist = conf_get_devs();
+ acnt = 0;
+ do {
+ rv2 = Assemble(ss, NULL,
+ ident,
+ devlist, c);
+ 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) {
+ pr_err("No arrays found in config file or automatically\n");
+ rv = 1;
+ } else if (cnt)
+ rv = 0;
+ } else if (cnt == 0 && rv == 0) {
+ pr_err("No arrays found in config file\n");
+ rv = 1;
+ }
+ map_unlock(&map);
+ return rv;
+}
+
+static int misc_scan(char devmode, struct context *c)
+{
+ /* apply --detail or --wait-clean to
+ * all devices in /proc/mdstat
+ */
+ struct mdstat_ent *ms = mdstat_read(0, 1);
+ struct mdstat_ent *e;
+ struct map_ent *map = NULL;
+ int members;
+ int rv = 0;
+
+ for (members = 0; members <= 1; members++) {
+ for (e=ms ; e ; e=e->next) {
+ char *name;
+ struct map_ent *me;
+ int member = e->metadata_version &&
+ strncmp(e->metadata_version,
+ "external:/", 10) == 0;
+ if (members != member)
+ continue;
+ me = map_by_devnum(&map, e->devnum);
+ if (me && me->path
+ && strcmp(me->path, "/unknown") != 0)
+ name = me->path;
+ else
+ name = get_md_name(e->devnum);
+
+ if (!name) {
+ pr_err("cannot find device file for %s\n",
+ e->dev);
+ continue;
+ }
+ if (devmode == 'D')
+ rv |= Detail(name, c);
+ else
+ rv |= WaitClean(name, -1, c->verbose);
+ put_md_name(name);
+ }
+ }
+ free_mdstat(ms);
+ return rv;
+}
+
+static int stop_scan(int verbose)
+{
+ /* 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;
+ int rv = 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);
+ int mdfd;
+
+ if (!name) {
+ pr_err("cannot find device file for %s\n",
+ e->dev);
+ continue;
+ }
+ mdfd = open_mddev(name, 1);
+ if (mdfd >= 0) {
+ if (Manage_runstop(name, mdfd, -1, verbose, !last))
+ err = 1;
+ else
+ progress = 1;
+ close(mdfd);
+ }
+
+ put_md_name(name);
+ }
+ free_mdstat(ms);
+ } while (!last && err);
+ if (err)
+ rv |= 1;
+ return rv;
+}
+
+static int misc_list(struct mddev_dev *devlist,
+ struct mddev_ident *ident,
+ struct supertype *ss, struct context *c)
+{
+ struct mddev_dev *dv;
+ int rv = 0;
+
+ for (dv=devlist ; dv; dv=dv->next) {
+ int mdfd;
+
+ switch(dv->disposition) {
+ case 'D':
+ rv |= Detail(dv->devname, c);
+ continue;
+ case KillOpt: /* Zero superblock */
+ if (ss)
+ rv |= Kill(dv->devname, ss, c->force, c->verbose,0);
+ else {
+ int v = c->verbose;
+ do {
+ rv |= Kill(dv->devname, NULL, c->force, v, 0);
+ v = -1;
+ } while (rv == 0);
+ rv &= ~2;
+ }
+ continue;
+ case 'Q':
+ rv |= Query(dv->devname); continue;
+ case 'X':
+ rv |= ExamineBitmap(dv->devname, c->brief, ss); continue;
+ case ExamineBB:
+ rv |= ExamineBadblocks(dv->devname, c->brief, ss); continue;
+ case 'W':
+ case WaitOpt:
+ rv |= Wait(dv->devname); continue;
+ case Waitclean:
+ rv |= WaitClean(dv->devname, -1, c->verbose); continue;
+ case KillSubarray:
+ rv |= Kill_subarray(dv->devname, c->subarray, c->verbose);
+ continue;
+ case UpdateSubarray:
+ if (c->update == NULL) {
+ pr_err("-U/--update must be specified with --update-subarray\n");
+ rv |= 1;
+ continue;
+ }
+ rv |= Update_subarray(dv->devname, c->subarray,
+ c->update, ident, c->verbose);
+ continue;
+ }
+ mdfd = open_mddev(dv->devname, 1);
+ if (mdfd>=0) {
+ switch(dv->disposition) {
+ case 'R':
+ rv |= Manage_runstop(dv->devname, mdfd, 1, c->verbose, 0); break;
+ case 'S':
+ rv |= Manage_runstop(dv->devname, mdfd, -1, c->verbose, 0); 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;
+ }
+ return rv;
+}
--- /dev/null
+/*
+ * mdadm - manage Linux "md" devices aka RAID arrays.
+ *
+ * Copyright (C) 2001-2012 Neil Brown <neilb@suse.de>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Neil Brown
+ * Email: <neilb@suse.de>
+ *
+ * Additions for bitmap and write-behind RAID options, Copyright (C) 2003-2004,
+ * Paul Clements, SteelEye Technology, Inc.
+ */
+
+#include "mdadm.h"
+#include "md_p.h"
+#include <ctype.h>
+
+
+static int scan_assemble(struct supertype *ss,
+ struct context *c,
+ struct mddev_ident *ident);
+static int misc_scan(char devmode, struct context *c);
+static int stop_scan(int verbose);
+static int misc_list(struct mddev_dev *devlist,
+ struct mddev_ident *ident,
+ struct supertype *ss, struct context *c);
+
+
+int main(int argc, char *argv[])
+{
+ int mode = 0;
+ int opt;
+ int option_index;
+ int rv;
+ int i;
+
+ unsigned long long array_size = 0;
+ unsigned long long data_offset = INVALID_SECTORS;
+ struct mddev_ident ident;
+ char *configfile = NULL;
+ int devmode = 0;
+ int bitmap_fd = -1;
+ struct mddev_dev *devlist = NULL;
+ struct mddev_dev **devlistend = & devlist;
+ struct mddev_dev *dv;
+ int devs_found = 0;
+ char *symlinks = NULL;
+ int grow_continue = 0;
+ /* 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)
+ */
+ struct context c = {
+ .require_homehost = 1,
+ };
+ struct shape s = {
+ .level = UnSet,
+ .layout = UnSet,
+ .bitmap_chunk = UnSet,
+ };
+
+ char sys_hostname[256];
+ char *mailaddr = NULL;
+ char *program = NULL;
+ int increments = 20;
+ int daemonise = 0;
+ char *pidfile = NULL;
+ int oneshot = 0;
+ int spare_sharing = 1;
+ struct supertype *ss = NULL;
+ int writemostly = 0;
+ char *shortopt = short_options;
+ int dosyslog = 0;
+ int rebuild_map = 0;
+ char *remove_path = NULL;
+ char *udev_filename = NULL;
+
+ 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;
+ ident.container = NULL;
+ ident.member = NULL;
+
+ while ((option_index = -1) ,
+ (opt=getopt_long(argc, argv,
+ shortopt, long_options,
+ &option_index)) != -1) {
+ int newmode = mode;
+ /* firstly, some mode-independent options */
+ switch(opt) {
+ case HelpOptions:
+ print_help = 2;
+ continue;
+ case 'h':
+ print_help = 1;
+ continue;
+
+ case 'V':
+ fputs(Version, stderr);
+ exit(0);
+
+ case 'v': c.verbose++;
+ continue;
+
+ case 'q': c.verbose--;
+ continue;
+
+ case 'b':
+ if (mode == ASSEMBLE || mode == BUILD || mode == CREATE
+ || mode == GROW || mode == INCREMENTAL
+ || mode == MANAGE)
+ break; /* b means bitmap */
+ case Brief:
+ c.brief = 1;
+ continue;
+
+ case 'Y': c.export++;
+ continue;
+
+ case HomeHost:
+ if (strcasecmp(optarg, "<ignore>") == 0)
+ c.require_homehost = 0;
+ else
+ c.homehost = optarg;
+ continue;
+
+ /*
+ * --offroot sets first char of argv[0] to @. This is used
+ * by systemd to signal that the task was launched from
+ * initrd/initramfs and should be preserved during shutdown
+ */
+ case OffRootOpt:
+ argv[0][0] = '@';
+ __offroot = 1;
+ continue;
+
+ case Prefer:
+ if (c.prefer)
+ free(c.prefer);
+ if (asprintf(&c.prefer, "/%s/", optarg) <= 0)
+ c.prefer = NULL;
+ continue;
+
+ case ':':
+ case '?':
+ fputs(Usage, stderr);
+ exit(2);
+ }
+ /* second, figure out the mode.
+ * Some options force the mode. Others
+ * set the mode if it isn't already
+ */
+
+ switch(opt) {
+ case ManageOpt:
+ newmode = MANAGE;
+ shortopt = short_bitmap_options;
+ break;
+ case 'a':
+ case Add:
+ case 'r':
+ case Remove:
+ case Replace:
+ case With:
+ case 'f':
+ case Fail:
+ case ReAdd: /* re-add */
+ if (!mode) {
+ newmode = MANAGE;
+ shortopt = short_bitmap_options;
+ }
+ 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;
+ shortopt = short_bitmap_options;
+ break;
+ case 'I': newmode = INCREMENTAL;
+ shortopt = short_bitmap_auto_options;
+ break;
+ case AutoDetect:
+ newmode = AUTODETECT;
+ break;
+
+ case MiscOpt:
+ case 'D':
+ case 'E':
+ case 'X':
+ case 'Q':
+ case ExamineBB:
+ newmode = MISC;
+ break;
+
+ case 'R':
+ case 'S':
+ case 'o':
+ case 'w':
+ case 'W':
+ case WaitOpt:
+ case Waitclean:
+ case DetailPlatform:
+ case KillSubarray:
+ case UpdateSubarray:
+ case UdevRules:
+ case KillOpt:
+ if (!mode)
+ newmode = MISC;
+ break;
+
+ case NoSharing:
+ newmode = MONITOR;
+ break;
+ }
+ if (mode && newmode == mode) {
+ /* everybody happy ! */
+ } else if (mode && newmode != mode) {
+ /* not allowed.. */
+ pr_err("");
+ if (option_index >= 0)
+ fprintf(stderr, "--%s", long_options[option_index].name);
+ else
+ fprintf(stderr, "-%c", opt);
+ 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);
+ } else if (!mode && newmode) {
+ mode = newmode;
+ if (mode == MISC && devs_found) {
+ pr_err("No action given for %s in --misc mode\n",
+ devlist->devname);
+ fprintf(stderr," Action options must come before device names\n");
+ exit(2);
+ }
+ } else {
+ /* special case of -c --help */
+ if ((opt == 'c' || opt == ConfigFile) &&
+ ( strncmp(optarg, "--h", 3)==0 ||
+ strncmp(optarg, "-h", 2)==0)) {
+ 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 = xmalloc(sizeof(*dv));
+ dv->devname = optarg;
+ dv->disposition = devmode;
+ dv->writemostly = writemostly;
+ dv->used = 0;
+ dv->next = NULL;
+ *devlistend = dv;
+ devlistend = &dv->next;
+
+ devs_found++;
+ continue;
+ }
+ /* No mode yet, and this is the second device ... */
+ pr_err("An option must be given to set the mode before a second device\n"
+ " (%s) is listed\n", optarg);
+ exit(2);
+ }
+ if (option_index >= 0)
+ pr_err("--%s", long_options[option_index].name);
+ else
+ pr_err("-%c", opt);
+ fprintf(stderr, " does not set the mode, and so cannot be the first option.\n");
+ exit(2);
+ }
+
+ /* if we just set the mode, then done */
+ switch(opt) {
+ case ManageOpt:
+ case MiscOpt:
+ case 'A':
+ case 'B':
+ case 'C':
+ case 'F':
+ case 'G':
+ case 'I':
+ case AutoDetect:
+ continue;
+ }
+ if (opt == 1) {
+ /* an undecorated option - must be a device name.
+ */
+
+ if (devs_found > 0 && devmode == DetailPlatform) {
+ pr_err("controller may only be specified once. %s ignored\n",
+ optarg);
+ continue;
+ }
+
+ if (devs_found > 0 && mode == MANAGE && !devmode) {
+ pr_err("Must give one of -a/-r/-f"
+ " for subsequent devices at %s\n", optarg);
+ exit(2);
+ }
+ if (devs_found > 0 && mode == GROW && !devmode) {
+ pr_err("Must give -a/--add for"
+ " devices to add: %s\n", optarg);
+ exit(2);
+ }
+ dv = xmalloc(sizeof(*dv));
+ dv->devname = optarg;
+ dv->disposition = devmode;
+ dv->writemostly = writemostly;
+ dv->used = 0;
+ dv->next = NULL;
+ *devlistend = dv;
+ devlistend = &dv->next;
+
+ devs_found++;
+ continue;
+ }
+
+ /* We've got a mode, and opt is now something else which
+ * could depend on the mode */
+#define O(a,b) ((a<<16)|b)
+ switch (O(mode,opt)) {
+ case O(GROW,'c'):
+ case O(GROW,ChunkSize):
+ case O(CREATE,'c'):
+ case O(CREATE,ChunkSize):
+ case O(BUILD,'c'): /* chunk or rounding */
+ case O(BUILD,ChunkSize): /* chunk or rounding */
+ if (s.chunk) {
+ pr_err("chunk/rounding may only be specified once. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ s.chunk = parse_size(optarg);
+ if (s.chunk == INVALID_SECTORS ||
+ s.chunk < 8 || (s.chunk&1)) {
+ pr_err("invalid chunk/rounding value: %s\n",
+ optarg);
+ exit(2);
+ }
+ /* Convert sectors to K */
+ s.chunk /= 2;
+ continue;
+
+ case O(INCREMENTAL, 'e'):
+ case O(CREATE,'e'):
+ case O(ASSEMBLE,'e'):
+ case O(MISC,'e'): /* set metadata (superblock) information */
+ if (ss) {
+ pr_err("metadata information already given\n");
+ exit(2);
+ }
+ for(i=0; !ss && superlist[i]; i++)
+ ss = superlist[i]->match_metadata_desc(optarg);
+
+ if (!ss) {
+ pr_err("unrecognised metadata identifier: %s\n", optarg);
+ exit(2);
+ }
+ continue;
+
+ case O(MANAGE,'W'):
+ case O(MANAGE,WriteMostly):
+ case O(BUILD,'W'):
+ case O(BUILD,WriteMostly):
+ case O(CREATE,'W'):
+ case O(CREATE,WriteMostly):
+ /* set write-mostly for following devices */
+ writemostly = 1;
+ continue;
+
+ case O(MANAGE,'w'):
+ /* clear write-mostly for following devices */
+ writemostly = 2;
+ continue;
+
+
+ case O(GROW,'z'):
+ case O(CREATE,'z'):
+ case O(BUILD,'z'): /* size */
+ if (s.size > 0) {
+ pr_err("size may only be specified once. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ if (strcmp(optarg, "max")==0)
+ s.size = MAX_SIZE;
+ else {
+ s.size = parse_size(optarg);
+ if (s.size == INVALID_SECTORS ||
+ s.size < 8) {
+ pr_err("invalid size: %s\n",
+ optarg);
+ exit(2);
+ }
+ /* convert sectors to K */
+ s.size /= 2;
+ }
+ continue;
+
+ case O(GROW,'Z'): /* array size */
+ if (array_size > 0) {
+ pr_err("array-size may only be specified once. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ if (strcmp(optarg, "max") == 0)
+ array_size = MAX_SIZE;
+ else {
+ array_size = parse_size(optarg);
+ if (array_size == 0 ||
+ array_size == INVALID_SECTORS) {
+ pr_err("invalid array size: %s\n",
+ optarg);
+ exit(2);
+ }
+ }
+ continue;
+
+ case O(CREATE,DataOffset):
+ case O(GROW,DataOffset):
+ if (data_offset != INVALID_SECTORS) {
+ fprintf(stderr, Name ": data-offset may only be specified one. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ if (mode == CREATE &&
+ strcmp(optarg, "variable") == 0)
+ data_offset = VARIABLE_OFFSET;
+ else
+ data_offset = parse_size(optarg);
+ if (data_offset == INVALID_SECTORS) {
+ fprintf(stderr, Name ": invalid data-offset: %s\n",
+ optarg);
+ exit(2);
+ }
+ continue;
+
+ case O(GROW,'l'):
+ case O(CREATE,'l'):
+ case O(BUILD,'l'): /* set raid level*/
+ if (s.level != UnSet) {
+ pr_err("raid level may only be set once. "
+ "Second value is %s.\n", optarg);
+ exit(2);
+ }
+ s.level = map_name(pers, optarg);
+ if (s.level == UnSet) {
+ pr_err("invalid raid level: %s\n",
+ optarg);
+ exit(2);
+ }
+ if (s.level != 0 && s.level != LEVEL_LINEAR && s.level != 1 &&
+ s.level != LEVEL_MULTIPATH && s.level != LEVEL_FAULTY &&
+ s.level != 10 &&
+ mode == BUILD) {
+ pr_err("Raid level %s not permitted with --build.\n",
+ optarg);
+ exit(2);
+ }
+ if (s.sparedisks > 0 && s.level < 1 && s.level >= -1) {
+ pr_err("raid level %s is incompatible with spare-devices setting.\n",
+ optarg);
+ exit(2);
+ }
+ ident.level = s.level;
+ continue;
+
+ case O(GROW, 'p'): /* new layout */
+ case O(GROW, Layout):
+ if (s.layout_str) {
+ pr_err("layout may only be sent once. "
+ "Second value was %s\n", optarg);
+ exit(2);
+ }
+ s.layout_str = optarg;
+ /* 'Grow' will parse the value */
+ continue;
+
+ case O(CREATE,'p'): /* raid5 layout */
+ case O(CREATE,Layout):
+ case O(BUILD,'p'): /* faulty layout */
+ case O(BUILD,Layout):
+ if (s.layout != UnSet) {
+ pr_err("layout may only be sent once. "
+ "Second value was %s\n", optarg);
+ exit(2);
+ }
+ switch(s.level) {
+ default:
+ pr_err("layout not meaningful for %s arrays.\n",
+ map_num(pers, s.level));
+ exit(2);
+ case UnSet:
+ pr_err("raid level must be given before layout.\n");
+ exit(2);
+
+ case 5:
+ s.layout = map_name(r5layout, optarg);
+ if (s.layout==UnSet) {
+ pr_err("layout %s not understood for raid5.\n",
+ optarg);
+ exit(2);
+ }
+ break;
+ case 6:
+ s.layout = map_name(r6layout, optarg);
+ if (s.layout==UnSet) {
+ pr_err("layout %s not understood for raid6.\n",
+ optarg);
+ exit(2);
+ }
+ break;
+
+ case 10:
+ s.layout = parse_layout_10(optarg);
+ if (s.layout < 0) {
+ pr_err("layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg);
+ exit(2);
+ }
+ break;
+ case LEVEL_FAULTY:
+ /* Faulty
+ * modeNNN
+ */
+ s.layout = parse_layout_faulty(optarg);
+ if (s.layout == -1) {
+ pr_err("layout %s not understood for faulty.\n",
+ optarg);
+ exit(2);
+ }
+ break;
+ }
+ continue;
+
+ case O(CREATE,AssumeClean):
+ case O(BUILD,AssumeClean): /* assume clean */
+ case O(GROW,AssumeClean):
+ s.assume_clean = 1;
+ continue;
+
+ case O(GROW,'n'):
+ case O(CREATE,'n'):
+ case O(BUILD,'n'): /* number of raid disks */
+ if (s.raiddisks) {
+ pr_err("raid-devices set twice: %d and %s\n",
+ s.raiddisks, optarg);
+ exit(2);
+ }
+ s.raiddisks = parse_num(optarg);
+ if (s.raiddisks <= 0) {
+ pr_err("invalid number of raid devices: %s\n",
+ optarg);
+ exit(2);
+ }
+ ident.raid_disks = s.raiddisks;
+ continue;
+
+ case O(CREATE,'x'): /* number of spare (eXtra) disks */
+ if (s.sparedisks) {
+ pr_err("spare-devices set twice: %d and %s\n",
+ s.sparedisks, optarg);
+ exit(2);
+ }
+ if (s.level != UnSet && s.level <= 0 && s.level >= -1) {
+ pr_err("spare-devices setting is incompatible with raid level %d\n",
+ s.level);
+ exit(2);
+ }
+ s.sparedisks = parse_num(optarg);
+ if (s.sparedisks < 0) {
+ pr_err("invalid number of spare-devices: %s\n",
+ optarg);
+ exit(2);
+ }
+ continue;
+
+ case O(CREATE,'a'):
+ case O(CREATE,Auto):
+ case O(BUILD,'a'):
+ case O(BUILD,Auto):
+ case O(INCREMENTAL,'a'):
+ case O(INCREMENTAL,Auto):
+ case O(ASSEMBLE,'a'):
+ case O(ASSEMBLE,Auto): /* auto-creation of device node */
+ c.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(BUILD,Force): /* force honouring '-n 1' */
+ case O(GROW,'f'): /* ditto */
+ case O(GROW,Force): /* ditto */
+ case O(CREATE,'f'): /* force honouring of device list */
+ case O(CREATE,Force): /* force honouring of device list */
+ case O(ASSEMBLE,'f'): /* force assembly */
+ case O(ASSEMBLE,Force): /* force assembly */
+ case O(MISC,'f'): /* force zero */
+ case O(MISC,Force): /* force zero */
+ case O(MANAGE,Force): /* add device which is too large */
+ c.force=1;
+ continue;
+ /* now for the Assemble options */
+ case O(ASSEMBLE, FreezeReshape): /* Freeze reshape during
+ * initrd phase */
+ case O(INCREMENTAL, FreezeReshape):
+ c.freeze_reshape = 1;
+ continue;
+ case O(CREATE,'u'): /* uuid of array */
+ case O(ASSEMBLE,'u'): /* uuid of array */
+ if (ident.uuid_set) {
+ pr_err("uuid cannot be set twice. "
+ "Second value %s.\n", optarg);
+ exit(2);
+ }
+ if (parse_uuid(optarg, ident.uuid))
+ ident.uuid_set = 1;
+ else {
+ pr_err("Bad uuid: %s\n", optarg);
+ exit(2);
+ }
+ continue;
+
+ case O(CREATE,'N'):
+ case O(ASSEMBLE,'N'):
+ case O(MISC,'N'):
+ if (ident.name[0]) {
+ pr_err("name cannot be set twice. "
+ "Second value %s.\n", optarg);
+ exit(2);
+ }
+ if (mode == MISC && !c.subarray) {
+ pr_err("-N/--name only valid with --update-subarray in misc mode\n");
+ exit(2);
+ }
+ if (strlen(optarg) > 32) {
+ pr_err("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 */
+ case O(ASSEMBLE,SuperMinor):
+ if (ident.super_minor != UnSet) {
+ pr_err("super-minor cannot be set twice. "
+ "Second value: %s.\n", optarg);
+ exit(2);
+ }
+ if (strcmp(optarg, "dev")==0)
+ ident.super_minor = -2;
+ else {
+ ident.super_minor = parse_num(optarg);
+ if (ident.super_minor < 0) {
+ pr_err("Bad super-minor number: %s.\n", optarg);
+ exit(2);
+ }
+ }
+ continue;
+
+ case O(ASSEMBLE,'o'):
+ case O(MANAGE,'o'):
+ case O(CREATE,'o'):
+ c.readonly = 1;
+ continue;
+
+ case O(ASSEMBLE,'U'): /* update the superblock */
+ case O(MISC,'U'):
+ if (c.update) {
+ pr_err("Can only update one aspect"
+ " of superblock, both %s and %s given.\n",
+ c.update, optarg);
+ exit(2);
+ }
+ if (mode == MISC && !c.subarray) {
+ pr_err("Only subarrays can be"
+ " updated in misc mode\n");
+ exit(2);
+ }
+ c.update = optarg;
+ if (strcmp(c.update, "sparc2.2")==0)
+ continue;
+ if (strcmp(c.update, "super-minor") == 0)
+ continue;
+ if (strcmp(c.update, "summaries")==0)
+ continue;
+ if (strcmp(c.update, "resync")==0)
+ continue;
+ if (strcmp(c.update, "uuid")==0)
+ continue;
+ if (strcmp(c.update, "name")==0)
+ continue;
+ if (strcmp(c.update, "homehost")==0)
+ continue;
+ if (strcmp(c.update, "devicesize")==0)
+ continue;
+ if (strcmp(c.update, "no-bitmap")==0)
+ continue;
+ if (strcmp(c.update, "bbl") == 0)
+ continue;
+ if (strcmp(c.update, "no-bbl") == 0)
+ continue;
+ if (strcmp(c.update, "byteorder")==0) {
+ if (ss) {
+ pr_err("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) {
+ pr_err("INTERNAL ERROR"
+ " cannot find 0.swap\n");
+ exit(2);
+ }
+
+ continue;
+ }
+ if (strcmp(c.update,"?") == 0 ||
+ strcmp(c.update, "help") == 0) {
+ outf = stdout;
+ fprintf(outf, Name ": ");
+ } else {
+ outf = stderr;
+ fprintf(outf,
+ Name ": '--update=%s' is invalid. ",
+ c.update);
+ }
+ fprintf(outf, "Valid --update options are:\n"
+ " 'sparc2.2', 'super-minor', 'uuid', 'name', 'resync',\n"
+ " 'summaries', 'homehost', 'byteorder', 'devicesize',\n"
+ " 'no-bitmap'\n");
+ exit(outf == stdout ? 0 : 2);
+
+ case O(MANAGE,'U'):
+ /* update=devicesize is allowed with --re-add */
+ if (devmode != 'A') {
+ pr_err("--update in Manage mode only"
+ " allowed with --re-add.\n");
+ exit(1);
+ }
+ if (c.update) {
+ pr_err("Can only update one aspect"
+ " of superblock, both %s and %s given.\n",
+ c.update, optarg);
+ exit(2);
+ }
+ c.update = optarg;
+ if (strcmp(c.update, "devicesize") != 0 &&
+ strcmp(c.update, "bbl") != 0 &&
+ strcmp(c.update, "no-bbl") != 0) {
+ pr_err("only 'devicesize', 'bbl' and 'no-bbl' can be"
+ " updated with --re-add\n");
+ exit(2);
+ }
+ continue;
+
+ case O(INCREMENTAL,NoDegraded):
+ pr_err("--no-degraded is deprecated in Incremental mode\n");
+ case O(ASSEMBLE,NoDegraded): /* --no-degraded */
+ c.runstop = -1; /* --stop isn't allowed for --assemble,
+ * so we overload slightly */
+ continue;
+
+ case O(ASSEMBLE,'c'):
+ case O(ASSEMBLE,ConfigFile):
+ case O(INCREMENTAL, 'c'):
+ case O(INCREMENTAL, ConfigFile):
+ case O(MISC, 'c'):
+ case O(MISC, ConfigFile):
+ case O(MONITOR,'c'):
+ case O(MONITOR,ConfigFile):
+ if (configfile) {
+ pr_err("configfile cannot be set twice. "
+ "Second value is %s.\n", optarg);
+ 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'):
+ c.scan = 1;
+ continue;
+
+ case O(MONITOR,'m'): /* mail address */
+ case O(MONITOR,EMail):
+ if (mailaddr)
+ pr_err("only specify one mailaddress. %s ignored.\n",
+ optarg);
+ else
+ mailaddr = optarg;
+ continue;
+
+ case O(MONITOR,'p'): /* alert program */
+ case O(MONITOR,ProgramOpt): /* alert program */
+ if (program)
+ pr_err("only specify one alter program. %s ignored.\n",
+ optarg);
+ else
+ program = optarg;
+ continue;
+
+ case O(MONITOR,'r'): /* rebuild increments */
+ case O(MONITOR,Increment):
+ increments = atoi(optarg);
+ if (increments > 99 || increments < 1) {
+ pr_err("please specify positive integer between 1 and 99 as rebuild increments.\n");
+ exit(2);
+ }
+ 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 (c.delay)
+ pr_err("only specify delay once. %s ignored.\n",
+ optarg);
+ else {
+ c.delay = parse_num(optarg);
+ if (c.delay < 1) {
+ pr_err("invalid delay: %s\n",
+ optarg);
+ exit(2);
+ }
+ }
+ continue;
+ case O(MONITOR,'f'): /* daemonise */
+ case O(MONITOR,Fork):
+ daemonise = 1;
+ continue;
+ case O(MONITOR,'i'): /* pid */
+ if (pidfile)
+ pr_err("only specify one pid file. %s ignored.\n",
+ optarg);
+ else
+ pidfile = optarg;
+ continue;
+ case O(MONITOR,'1'): /* oneshot */
+ oneshot = 1;
+ spare_sharing = 0;
+ continue;
+ case O(MONITOR,'t'): /* test */
+ c.test = 1;
+ continue;
+ case O(MONITOR,'y'): /* log messages to syslog */
+ openlog("mdadm", LOG_PID, SYSLOG_FACILITY);
+ dosyslog = 1;
+ continue;
+ case O(MONITOR, NoSharing):
+ spare_sharing = 0;
+ continue;
+
+ /* now the general management options. Some are applicable
+ * to other modes. None have arguments.
+ */
+ case O(GROW,'a'):
+ case O(GROW,Add):
+ case O(MANAGE,'a'):
+ case O(MANAGE,Add): /* add a drive */
+ devmode = 'a';
+ continue;
+ case O(MANAGE,ReAdd):
+ devmode = 'A';
+ continue;
+ case O(MANAGE,'r'): /* remove a drive */
+ case O(MANAGE,Remove):
+ devmode = 'r';
+ continue;
+ case O(MANAGE,'f'): /* set faulty */
+ case O(MANAGE,Fail):
+ case O(INCREMENTAL,'f'):
+ case O(INCREMENTAL,Remove):
+ case O(INCREMENTAL,Fail): /* r for incremental is taken, use f
+ * even though we will both fail and
+ * remove the device */
+ devmode = 'f';
+ continue;
+ case O(MANAGE,Replace):
+ /* Mark these devices for replacement */
+ devmode = 'R';
+ continue;
+ case O(MANAGE,With):
+ /* These are the replacements to use */
+ if (devmode != 'R') {
+ pr_err("--with must follow --replace\n");
+ exit(2);
+ }
+ devmode = 'W';
+ continue;
+ case O(INCREMENTAL,'R'):
+ case O(MANAGE,'R'):
+ case O(ASSEMBLE,'R'):
+ case O(BUILD,'R'):
+ case O(CREATE,'R'): /* Run the array */
+ if (c.runstop < 0) {
+ pr_err("Cannot both Stop and Run an array\n");
+ exit(2);
+ }
+ c.runstop = 1;
+ continue;
+ case O(MANAGE,'S'):
+ if (c.runstop > 0) {
+ pr_err("Cannot both Run and Stop an array\n");
+ exit(2);
+ }
+ c.runstop = -1;
+ continue;
+ case O(MANAGE,'t'):
+ c.test = 1;
+ continue;
+
+ case O(MISC,'Q'):
+ case O(MISC,'D'):
+ case O(MISC,'E'):
+ case O(MISC,KillOpt):
+ case O(MISC,'R'):
+ case O(MISC,'S'):
+ case O(MISC,'X'):
+ case O(MISC, ExamineBB):
+ case O(MISC,'o'):
+ case O(MISC,'w'):
+ case O(MISC,'W'):
+ case O(MISC, WaitOpt):
+ case O(MISC, Waitclean):
+ case O(MISC, DetailPlatform):
+ case O(MISC, KillSubarray):
+ case O(MISC, UpdateSubarray):
+ if (opt == KillSubarray || opt == UpdateSubarray) {
+ if (c.subarray) {
+ pr_err("subarray can only"
+ " be specified once\n");
+ exit(2);
+ }
+ c.subarray = optarg;
+ }
+ if (devmode && devmode != opt &&
+ (devmode == 'E' || (opt == 'E' && devmode != 'Q'))) {
+ pr_err("--examine/-E cannot be given with ");
+ if (devmode == 'E') {
+ if (option_index >= 0)
+ fprintf(stderr, "--%s\n",
+ long_options[option_index].name);
+ else
+ fprintf(stderr, "-%c\n", opt);
+ } else if (isalpha(devmode))
+ fprintf(stderr, "-%c\n", devmode);
+ else
+ fprintf(stderr, "previous option\n");
+ exit(2);
+ }
+ devmode = opt;
+ continue;
+ case O(MISC, UdevRules):
+ if (devmode && devmode != opt) {
+ pr_err("--udev-rules must"
+ " be the only option.\n");
+ } else {
+ if (udev_filename)
+ pr_err("only specify one udev "
+ "rule filename. %s ignored.\n",
+ optarg);
+ else
+ udev_filename = optarg;
+ }
+ devmode = opt;
+ continue;
+ case O(MISC,'t'):
+ c.test = 1;
+ continue;
+
+ case O(MISC, Sparc22):
+ if (devmode != 'E') {
+ pr_err("--sparc2.2 only allowed with --examine\n");
+ exit(2);
+ }
+ c.SparcAdjust = 1;
+ continue;
+
+ case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */
+ case O(ASSEMBLE,Bitmap):
+ if (!optarg) {
+ pr_err("bitmap file needed with -b in --assemble mode\n");
+ exit(2);
+ }
+ if (strcmp(optarg, "internal")==0) {
+ pr_err("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) {
+ pr_err("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 (c.backup_file) {
+ pr_err("backup file already specified, rejecting %s\n", optarg);
+ exit(2);
+ }
+ c.backup_file = optarg;
+ continue;
+
+ case O(GROW, Continue):
+ /* Continue interrupted grow
+ */
+ grow_continue = 1;
+ continue;
+ case O(ASSEMBLE, InvalidBackup):
+ /* Acknowledge that the backupfile is invalid, but ask
+ * to continue anyway
+ */
+ c.invalid_backup = 1;
+ continue;
+
+ case O(BUILD,'b'):
+ case O(BUILD,Bitmap):
+ case O(CREATE,'b'):
+ case O(CREATE,Bitmap): /* here we create the bitmap */
+ if (strcmp(optarg, "none") == 0) {
+ pr_err("'--bitmap none' only"
+ " supported for --grow\n");
+ exit(2);
+ }
+ /* FALL THROUGH */
+ case O(GROW,'b'):
+ case O(GROW,Bitmap):
+ if (strcmp(optarg, "internal")== 0 ||
+ strcmp(optarg, "none")== 0 ||
+ strchr(optarg, '/') != NULL) {
+ s.bitmap_file = optarg;
+ continue;
+ }
+ /* probable typo */
+ pr_err("bitmap file must contain a '/', or be 'internal', or 'none'\n"
+ " not '%s'\n", optarg);
+ exit(2);
+
+ case O(GROW,BitmapChunk):
+ case O(BUILD,BitmapChunk):
+ case O(CREATE,BitmapChunk): /* bitmap chunksize */
+ s.bitmap_chunk = parse_size(optarg);
+ if (s.bitmap_chunk == 0 ||
+ s.bitmap_chunk == INVALID_SECTORS ||
+ s.bitmap_chunk & (s.bitmap_chunk - 1)) {
+ pr_err("invalid bitmap chunksize: %s\n",
+ optarg);
+ exit(2);
+ }
+ s.bitmap_chunk = s.bitmap_chunk * 512;
+ continue;
+
+ case O(GROW, WriteBehind):
+ case O(BUILD, WriteBehind):
+ case O(CREATE, WriteBehind): /* write-behind mode */
+ s.write_behind = DEFAULT_MAX_WRITE_BEHIND;
+ if (optarg) {
+ s.write_behind = parse_num(optarg);
+ if (s.write_behind < 0 ||
+ s.write_behind > 16383) {
+ pr_err("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'):
+ case O(INCREMENTAL, RebuildMapOpt):
+ rebuild_map = 1;
+ continue;
+ case O(INCREMENTAL, IncrementalPath):
+ remove_path = optarg;
+ continue;
+ }
+ /* We have now processed all the valid options. Anything else is
+ * an error
+ */
+ if (option_index > 0)
+ pr_err(":option --%s not valid in %s mode\n",
+ long_options[option_index].name,
+ map_num(modes, mode));
+ else
+ pr_err("option -%c not valid in %s mode\n",
+ opt, map_num(modes, mode));
+ exit(2);
+
+ }
+
+ if (print_help) {
+ char *help_text;
+ if (print_help == 2)
+ help_text = OptionHelp;
+ else
+ help_text = mode_help[mode];
+ if (help_text == NULL)
+ help_text = Help;
+ 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 {
+ pr_err("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
+ *
+ * That is mosty checked in the per-mode stuff but...
+ *
+ * For @,B,C and A without -s, the first device listed must be
+ * an md device. We check that here and open it.
+ */
+
+ if (mode == MANAGE || mode == BUILD || mode == CREATE
+ || mode == GROW
+ || (mode == ASSEMBLE && ! c.scan)) {
+ if (devs_found < 1) {
+ pr_err("an md device must be given in this mode\n");
+ exit(2);
+ }
+ if ((int)ident.super_minor == -2 && c.autof) {
+ pr_err("--super-minor=dev is incompatible with --auto\n");
+ exit(2);
+ }
+ if (mode == MANAGE || mode == GROW) {
+ mdfd = open_mddev(devlist->devname, 1);
+ if (mdfd < 0)
+ exit(1);
+ } else
+ /* non-existent device is OK */
+ mdfd = open_mddev(devlist->devname, 0);
+ if (mdfd == -2) {
+ pr_err("device %s exists but is not an "
+ "md array.\n", devlist->devname);
+ exit(1);
+ }
+ if ((int)ident.super_minor == -2) {
+ struct stat stb;
+ if (mdfd < 0) {
+ pr_err("--super-minor=dev given, and "
+ "listed device %s doesn't exist.\n",
+ devlist->devname);
+ exit(1);
+ }
+ fstat(mdfd, &stb);
+ ident.super_minor = minor(stb.st_rdev);
+ }
+ if (mdfd >= 0 && mode != MANAGE && mode != GROW) {
+ /* We don't really want this open yet, we just might
+ * have wanted to check some things
+ */
+ close(mdfd);
+ mdfd = -1;
+ }
+ }
+
+ if (s.raiddisks) {
+ if (s.raiddisks == 1 && !c.force && s.level != LEVEL_FAULTY) {
+ pr_err("'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 (c.homehost == NULL)
+ c.homehost = conf_get_homehost(&c.require_homehost);
+ if (c.homehost == NULL || strcasecmp(c.homehost, "<system>")==0) {
+ if (gethostname(sys_hostname, sizeof(sys_hostname)) == 0) {
+ sys_hostname[sizeof(sys_hostname)-1] = 0;
+ c.homehost = sys_hostname;
+ }
+ }
+ if (c.homehost && (!c.homehost[0] || strcasecmp(c.homehost, "<none>") == 0)) {
+ c.homehost = NULL;
+ c.require_homehost = 0;
+ }
+
+ if ((mode == MISC && devmode == 'E')
+ || (mode == MONITOR && spare_sharing == 0))
+ /* Anyone may try this */;
+ else if (geteuid() != 0) {
+ pr_err("must be super-user to perform this action\n");
+ exit(1);
+ }
+
+ ident.autof = c.autof;
+
+ if (c.scan && c.verbose < 2)
+ /* --scan implied --brief unless -vv */
+ c.brief = 1;
+
+ rv = 0;
+ switch(mode) {
+ case MANAGE:
+ /* readonly, add/remove, readwrite, runstop */
+ if (c.readonly > 0)
+ rv = Manage_ro(devlist->devname, mdfd, c.readonly);
+ if (!rv && devs_found>1)
+ rv = Manage_subdevs(devlist->devname, mdfd,
+ devlist->next, c.verbose, c.test,
+ c.update, c.force);
+ if (!rv && c.readonly < 0)
+ rv = Manage_ro(devlist->devname, mdfd, c.readonly);
+ if (!rv && c.runstop)
+ rv = Manage_runstop(devlist->devname, mdfd, c.runstop, c.verbose, 0);
+ break;
+ case ASSEMBLE:
+ if (devs_found == 1 && ident.uuid_set == 0 &&
+ ident.super_minor == UnSet && ident.name[0] == 0 && !c.scan ) {
+ /* Only a device has been given, so get details from config file */
+ struct mddev_ident *array_ident = conf_get_ident(devlist->devname);
+ if (array_ident == NULL) {
+ pr_err("%s not identified in config file.\n",
+ devlist->devname);
+ rv |= 1;
+ if (mdfd >= 0)
+ close(mdfd);
+ } else {
+ if (array_ident->autof == 0)
+ array_ident->autof = c.autof;
+ rv |= Assemble(ss, devlist->devname, array_ident,
+ NULL, &c);
+ }
+ } else if (!c.scan)
+ rv = Assemble(ss, devlist->devname, &ident,
+ devlist->next, &c);
+ else if (devs_found > 0) {
+ if (c.update && devs_found > 1) {
+ pr_err("can only update a single array at a time\n");
+ exit(1);
+ }
+ if (c.backup_file && devs_found > 1) {
+ pr_err("can only assemble a single array when providing a backup file.\n");
+ exit(1);
+ }
+ for (dv = devlist ; dv ; dv=dv->next) {
+ struct mddev_ident *array_ident = conf_get_ident(dv->devname);
+ if (array_ident == NULL) {
+ pr_err("%s not identified in config file.\n",
+ dv->devname);
+ rv |= 1;
+ continue;
+ }
+ if (array_ident->autof == 0)
+ array_ident->autof = c.autof;
+ rv |= Assemble(ss, dv->devname, array_ident,
+ NULL, &c);
+ }
+ } else {
+ if (c.update) {
+ pr_err("--update not meaningful with a --scan assembly.\n");
+ exit(1);
+ }
+ if (c.backup_file) {
+ pr_err("--backup_file not meaningful with a --scan assembly.\n");
+ exit(1);
+ }
+ rv = scan_assemble(ss, &c, &ident);
+ }
+
+ break;
+ case BUILD:
+ if (c.delay == 0)
+ c.delay = DEFAULT_BITMAP_DELAY;
+ if (s.write_behind && !s.bitmap_file) {
+ pr_err("write-behind mode requires a bitmap.\n");
+ rv = 1;
+ break;
+ }
+ if (s.raiddisks == 0) {
+ pr_err("no raid-devices specified.\n");
+ rv = 1;
+ break;
+ }
+
+ if (s.bitmap_file) {
+ if (strcmp(s.bitmap_file, "internal")==0) {
+ pr_err("'internal' bitmaps not supported with --build\n");
+ rv |= 1;
+ break;
+ }
+ }
+ rv = Build(devlist->devname, devlist->next, &s, &c);
+ break;
+ case CREATE:
+ if (c.delay == 0)
+ c.delay = DEFAULT_BITMAP_DELAY;
+ if (s.write_behind && !s.bitmap_file) {
+ pr_err("write-behind mode requires a bitmap.\n");
+ rv = 1;
+ break;
+ }
+ if (s.raiddisks == 0) {
+ pr_err("no raid-devices specified.\n");
+ rv = 1;
+ break;
+ }
+
+ rv = Create(ss, devlist->devname,
+ ident.name, ident.uuid_set ? ident.uuid : NULL,
+ devs_found-1, devlist->next,
+ &s, &c, data_offset);
+ break;
+ case MISC:
+ if (devmode == 'E') {
+ if (devlist == NULL && !c.scan) {
+ pr_err("No devices to examine\n");
+ exit(2);
+ }
+ if (devlist == NULL)
+ devlist = conf_get_devs();
+ if (devlist == NULL) {
+ pr_err("No devices listed in %s\n", configfile?configfile:DefaultConfFile);
+ exit(1);
+ }
+ rv = Examine(devlist, &c, ss);
+ } else if (devmode == DetailPlatform) {
+ rv = Detail_Platform(ss ? ss->ss : NULL, ss ? c.scan : 1,
+ c.verbose, c.export,
+ devlist ? devlist->devname : NULL);
+ } else if (devlist == NULL) {
+ if (devmode == 'S' && c.scan)
+ rv = stop_scan(c.verbose);
+ else if ((devmode == 'D' || devmode == Waitclean) && c.scan)
+ rv = misc_scan(devmode, &c);
+ else if (devmode == UdevRules)
+ rv = Write_rules(udev_filename);
+ else {
+ pr_err("No devices given.\n");
+ exit(2);
+ }
+ } else
+ rv = misc_list(devlist, &ident, ss, &c);
+ break;
+ case MONITOR:
+ if (!devlist && !c.scan) {
+ pr_err("Cannot monitor: need --scan or at least one device\n");
+ rv = 1;
+ break;
+ }
+ if (pidfile && !daemonise) {
+ pr_err("Cannot write a pid file when not in daemon mode\n");
+ rv = 1;
+ break;
+ }
+ if (c.delay == 0) {
+ if (get_linux_version() > 2006016)
+ /* mdstat responds to poll */
+ c.delay = 1000;
+ else
+ c.delay = 60;
+ }
+ if (c.delay == 0)
+ c.delay = 60;
+ rv= Monitor(devlist, mailaddr, program,
+ &c, daemonise, oneshot,
+ dosyslog, pidfile, increments,
+ spare_sharing);
+ break;
+
+ case GROW:
+ if (array_size > 0) {
+ /* alway impose array size first, independent of
+ * anything else
+ * Do not allow level or raid_disks changes at the
+ * same time as that can be irreversibly destructive.
+ */
+ struct mdinfo sra;
+ int err;
+ if (s.raiddisks || s.level != UnSet) {
+ pr_err("cannot change array size in same operation "
+ "as changing raiddisks or level.\n"
+ " Change size first, then check that data is still intact.\n");
+ rv = 1;
+ break;
+ }
+ sysfs_init(&sra, mdfd, 0);
+ if (array_size == MAX_SIZE)
+ err = sysfs_set_str(&sra, NULL, "array_size", "default");
+ else
+ err = sysfs_set_num(&sra, NULL, "array_size", array_size / 2);
+ if (err < 0) {
+ if (errno == E2BIG)
+ pr_err("--array-size setting"
+ " is too large.\n");
+ else
+ pr_err("current kernel does"
+ " not support setting --array-size\n");
+ rv = 1;
+ break;
+ }
+ }
+ if (devs_found > 1 && s.raiddisks == 0) {
+ /* must be '-a'. */
+ if (s.size > 0 || s.chunk || s.layout_str != NULL || s.bitmap_file) {
+ pr_err("--add cannot be used with "
+ "other geometry changes in --grow mode\n");
+ rv = 1;
+ break;
+ }
+ for (dv=devlist->next; dv ; dv=dv->next) {
+ rv = Grow_Add_device(devlist->devname, mdfd,
+ dv->devname);
+ if (rv)
+ break;
+ }
+ } else if (s.bitmap_file) {
+ if (s.size > 0 || s.raiddisks || s.chunk ||
+ s.layout_str != NULL || devs_found > 1) {
+ pr_err("--bitmap changes cannot be "
+ "used with other geometry changes "
+ "in --grow mode\n");
+ rv = 1;
+ break;
+ }
+ if (c.delay == 0)
+ c.delay = DEFAULT_BITMAP_DELAY;
+ rv = Grow_addbitmap(devlist->devname, mdfd, &c, &s);
+ } else if (grow_continue)
+ rv = Grow_continue_command(devlist->devname,
+ mdfd, c.backup_file,
+ c.verbose);
+ else if (s.size > 0 || s.raiddisks || s.layout_str != NULL
+ || s.chunk != 0 || s.level != UnSet) {
+ rv = Grow_reshape(devlist->devname, mdfd,
+ devlist->next,
+ data_offset, &c, &s);
+ } else if (array_size == 0)
+ pr_err("no changes to --grow\n");
+ break;
+ case INCREMENTAL:
+ if (rebuild_map) {
+ RebuildMap();
+ }
+ if (c.scan) {
+ if (c.runstop <= 0) {
+ pr_err("--incremental --scan meaningless without --run.\n");
+ break;
+ }
+ if (devmode == 'f') {
+ pr_err("--incremental --scan --fail not supported.\n");
+ break;
+ }
+ rv = IncrementalScan(c.verbose);
+ }
+ if (!devlist) {
+ if (!rebuild_map && !c.scan) {
+ pr_err("--incremental requires a device.\n");
+ rv = 1;
+ }
+ break;
+ }
+ if (devlist->next) {
+ pr_err("--incremental can only handle one device.\n");
+ rv = 1;
+ break;
+ }
+ if (devmode == 'f')
+ rv = IncrementalRemove(devlist->devname, remove_path,
+ c.verbose);
+ else
+ rv = Incremental(devlist->devname, &c, ss);
+ break;
+ case AUTODETECT:
+ autodetect();
+ break;
+ }
+ exit(rv);
+}
+
+static int scan_assemble(struct supertype *ss,
+ struct context *c,
+ struct mddev_ident *ident)
+{
+ struct mddev_ident *a, *array_list = conf_get_ident(NULL);
+ struct mddev_dev *devlist = conf_get_devs();
+ struct map_ent *map = NULL;
+ int cnt = 0;
+ int rv = 0;
+ int failures, successes;
+
+ if (conf_verify_devnames(array_list)) {
+ pr_err("Duplicate MD device names in "
+ "conf file were found.\n");
+ return 1;
+ }
+ if (devlist == NULL) {
+ pr_err("No devices listed in conf file were found.\n");
+ return 1;
+ }
+ for (a = array_list; a ; a = a->next) {
+ a->assembled = 0;
+ if (a->autof == 0)
+ a->autof = c->autof;
+ }
+ if (map_lock(&map))
+ pr_err("%s: failed to get "
+ "exclusive lock on mapfile\n",
+ __func__);
+ do {
+ failures = 0;
+ successes = 0;
+ rv = 0;
+ for (a = array_list; a ; a = a->next) {
+ int r;
+ if (a->assembled)
+ continue;
+ if (a->devname &&
+ strcasecmp(a->devname, "<ignore>") == 0)
+ continue;
+
+ r = Assemble(ss, a->devname,
+ a, NULL, c);
+ if (r == 0) {
+ a->assembled = 1;
+ successes++;
+ } else
+ failures++;
+ rv |= r;
+ cnt++;
+ }
+ } while (failures && successes);
+ if (c->homehost && cnt == 0) {
+ /* Maybe we can auto-assemble something.
+ * Repeatedly call Assemble in auto-assemble mode
+ * until it fails
+ */
+ int rv2;
+ int acnt;
+ ident->autof = c->autof;
+ do {
+ struct mddev_dev *devlist = conf_get_devs();
+ acnt = 0;
+ do {
+ rv2 = Assemble(ss, NULL,
+ ident,
+ devlist, c);
+ 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) {
+ pr_err("No arrays found in config file or automatically\n");
+ rv = 1;
+ } else if (cnt)
+ rv = 0;
+ } else if (cnt == 0 && rv == 0) {
+ pr_err("No arrays found in config file\n");
+ rv = 1;
+ }
+ map_unlock(&map);
+ return rv;
+}
+
+static int misc_scan(char devmode, struct context *c)
+{
+ /* apply --detail or --wait-clean to
+ * all devices in /proc/mdstat
+ */
+ struct mdstat_ent *ms = mdstat_read(0, 1);
+ struct mdstat_ent *e;
+ struct map_ent *map = NULL;
+ int members;
+ int rv = 0;
+
+ for (members = 0; members <= 1; members++) {
+ for (e=ms ; e ; e=e->next) {
+ char *name;
+ struct map_ent *me;
+ int member = e->metadata_version &&
+ strncmp(e->metadata_version,
+ "external:/", 10) == 0;
+ if (members != member)
+ continue;
+ me = map_by_devnum(&map, e->devnum);
+ if (me && me->path
+ && strcmp(me->path, "/unknown") != 0)
+ name = me->path;
+ else
+ name = get_md_name(e->devnum);
+
+ if (!name) {
+ pr_err("cannot find device file for %s\n",
+ e->dev);
+ continue;
+ }
+ if (devmode == 'D')
+ rv |= Detail(name, c);
+ else
+ rv |= WaitClean(name, -1, c->verbose);
+ put_md_name(name);
+ }
+ }
+ free_mdstat(ms);
+ return rv;
+}
+
+static int stop_scan(int verbose)
+{
+ /* 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;
+ int rv = 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);
+ int mdfd;
+
+ if (!name) {
+ pr_err("cannot find device file for %s\n",
+ e->dev);
+ continue;
+ }
+ mdfd = open_mddev(name, 1);
+ if (mdfd >= 0) {
+ if (Manage_runstop(name, mdfd, -1, verbose, !last))
+ err = 1;
+ else
+ progress = 1;
+ close(mdfd);
+ }
+
+ put_md_name(name);
+ }
+ free_mdstat(ms);
+ } while (!last && err);
+ if (err)
+ rv |= 1;
+ return rv;
+}
+
+static int misc_list(struct mddev_dev *devlist,
+ struct mddev_ident *ident,
+ struct supertype *ss, struct context *c)
+{
+ struct mddev_dev *dv;
+ int rv = 0;
+
+ for (dv=devlist ; dv; dv=dv->next) {
+ int mdfd;
+
+ switch(dv->disposition) {
+ case 'D':
+ rv |= Detail(dv->devname, c);
+ continue;
+ case KillOpt: /* Zero superblock */
+ if (ss)
+ rv |= Kill(dv->devname, ss, c->force, c->verbose,0);
+ else {
+ int v = c->verbose;
+ do {
+ rv |= Kill(dv->devname, NULL, c->force, v, 0);
+ v = -1;
+ } while (rv == 0);
+ rv &= ~2;
+ }
+ continue;
+ case 'Q':
+ rv |= Query(dv->devname); continue;
+ case 'X':
+ rv |= ExamineBitmap(dv->devname, c->brief, ss); continue;
+ case ExamineBB:
+ rv |= ExamineBadblocks(dv->devname, c->brief, ss); continue;
+ case 'W':
+ case WaitOpt:
+ rv |= Wait(dv->devname); continue;
+ case Waitclean:
+ rv |= WaitClean(dv->devname, -1, c->verbose); continue;
+ case KillSubarray:
+ rv |= Kill_subarray(dv->devname, c->subarray, c->verbose);
+ continue;
+ case UpdateSubarray:
+ if (c->update == NULL) {
+ pr_err("-U/--update must be specified with --update-subarray\n");
+ rv |= 1;
+ continue;
+ }
+ rv |= Update_subarray(dv->devname, c->subarray,
+ c->update, ident, c->verbose);
+ continue;
+ }
+ mdfd = open_mddev(dv->devname, 1);
+ if (mdfd>=0) {
+ switch(dv->disposition) {
+ case 'R':
+ rv |= Manage_runstop(dv->devname, mdfd, 1, c->verbose, 0); break;
+ case 'S':
+ rv |= Manage_runstop(dv->devname, mdfd, -1, c->verbose, 0); 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;
+ }
+ return rv;
+}
--- /dev/null
+diff --git a/mdadm.c b/mdadm.c
+index 11016e7..63962d1 100644
+--- a/mdadm.c
++++ b/mdadm.c
+@@ -116,6 +116,13 @@ int main(int argc, char *argv[])
+ ident.container = NULL;
+ ident.member = NULL;
+
++ /*
++ * set first char of argv[0] to @. This is used by
++ * systemd to signal that the task was launched from
++ * initrd/initramfs and should be preserved during shutdown
++ */
++ argv[0][0] = '@';
++
+ while ((option_index = -1) ,
+ (opt=getopt_long(argc, argv,
+ shortopt, long_options,
+@@ -159,16 +166,6 @@ int main(int argc, char *argv[])
+ c.homehost = optarg;
+ continue;
+
+- /*
+- * --offroot sets first char of argv[0] to @. This is used
+- * by systemd to signal that the task was launched from
+- * initrd/initramfs and should be preserved during shutdown
+- */
+- case OffRootOpt:
+- argv[0][0] = '@';
+- __offroot = 1;
+- continue;
+-
+ case Prefer:
+ if (c.prefer)
+ free(c.prefer);
csl1 = pdiff(fm, fb, ch);
else
csl1 = diff(fm, fb);
- csl2 = diff(fb, fa);
+ csl2 = diff_patch(fb, fa);
ci = make_merger(fm, fb, fa, csl1, csl2, 0, 1, 0);
csl1 = pdiff(ff, fp1, pl->chunks);
else
csl1 = diff(ff, fp1);
- csl2 = diff(fp1, fp2);
+ csl2 = diff_patch(fp1, fp2);
ci = make_merger(ff, fp1, fp2, csl1, csl2, 0, 1, 0);
pl->wiggles = ci.wiggles;
pl->conflicts = ci.conflicts;
sm = load_file(pl->file);
fm = split_stream(sm, ByWord);
csl1 = pdiff(fm, fb, chunks);
- csl2 = diff(fb, fa);
+ csl2 = diff_patch(fb, fa);
ci = make_merger(fm, fb, fa, csl1, csl2, 0, 1, 0);
return save_merge(fm, fb, fa, ci.merger,
pl->file, 1);
if (chunks2 && !chunks1)
csl = pdiff(fl[0], fl[1], chunks2);
else
- csl = diff(fl[0], fl[1]);
+ csl = diff_patch(fl[0], fl[1]);
if (obj == 'l') {
if (!chunks1)
printf("@@ -1,%d +1,%d @@\n",
csl1 = pdiff(fl[0], fl[1], chunks2);
else
csl1 = diff(fl[0], fl[1]);
- csl2 = diff(fl[1], fl[2]);
+ csl2 = diff_patch(fl[1], fl[2]);
ci = make_merger(fl[0], fl[1], fl[2], csl1, csl2,
obj == 'w', ignore, show_wiggles);
extern struct file split_stream(struct stream s, int type);
extern struct csl *pdiff(struct file a, struct file b, int chunks);
extern struct csl *diff(struct file a, struct file b);
+extern struct csl *diff_patch(struct file a, struct file b);
extern struct csl *diff_partial(struct file a, struct file b,
int alo, int ahi, int blo, int bhi);
extern struct csl *worddiff(struct stream f1, struct stream f2,
projects / wiggle.git / commitdiff