872 lines
23 KiB
C
872 lines
23 KiB
C
/*
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* mdadm - manage Linux "md" devices aka RAID arrays.
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*
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* Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Neil Brown
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* Email: <neilb@cse.unsw.edu.au>
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* Paper: Neil Brown
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* School of Computer Science and Engineering
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* The University of New South Wales
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* Sydney, 2052
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* Australia
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*/
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#include "mdadm.h"
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#include "md_p.h"
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#include <ctype.h>
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int main(int argc, char *argv[])
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{
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int mode = 0;
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int opt;
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int option_index;
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char *help_text;
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char *c;
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int rv;
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int chunk = 0;
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int size = -1;
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int level = UnSet;
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int layout = UnSet;
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int raiddisks = 0;
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int sparedisks = 0;
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struct mddev_ident_s ident;
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char *configfile = NULL;
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char *cp;
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char *update = NULL;
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int scan = 0;
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char devmode = 0;
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int runstop = 0;
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int readonly = 0;
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int SparcAdjust = 0;
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mddev_dev_t devlist = NULL;
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mddev_dev_t *devlistend = & devlist;
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mddev_dev_t dv;
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int devs_found = 0;
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int verbose = 0;
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int brief = 0;
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int force = 0;
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int test = 0;
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int assume_clean = 0;
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int autof = 0; /* -1 for non-partitions, 1 or more to create partitions */
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char *mailaddr = NULL;
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char *program = NULL;
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int delay = 0;
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int daemonise = 0;
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char *pidfile = NULL;
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int oneshot = 0;
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int copies;
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int mdfd = -1;
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ident.uuid_set=0;
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ident.level = UnSet;
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ident.raid_disks = UnSet;
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ident.super_minor= UnSet;
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ident.devices=0;
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while ((option_index = -1) ,
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(opt=getopt_long(argc, argv,
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short_options, long_options,
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&option_index)) != -1) {
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int newmode = mode;
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/* firstly, so mode-independant options */
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switch(opt) {
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case 'h':
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help_text = Help;
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if (option_index > 0 &&
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strcmp(long_options[option_index].name, "help-options")==0)
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help_text = OptionHelp;
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else
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switch (mode) {
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case ASSEMBLE : help_text = Help_assemble; break;
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case BUILD : help_text = Help_build; break;
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case CREATE : help_text = Help_create; break;
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case MANAGE : help_text = Help_manage; break;
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case MISC : help_text = Help_misc; break;
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case MONITOR : help_text = Help_monitor; break;
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case GROW : help_text = Help_grow; break;
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}
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fputs(help_text,stderr);
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exit(0);
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case 'V':
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fputs(Version, stderr);
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exit(0);
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case 'v': verbose = 1;
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continue;
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case 'b': brief = 1;
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continue;
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case ':':
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case '?':
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fputs(Usage, stderr);
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exit(2);
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}
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/* second, figure out the mode.
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* Some options force the mode. Others
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* set the mode if it isn't already
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*/
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switch(opt) {
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case '@': /* just incase they say --manage */
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newmode = MANAGE; break;
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case 'a':
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case 'r':
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case 'f':
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case 1 : if (!mode) newmode = MANAGE; break;
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case 'A': newmode = ASSEMBLE; break;
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case 'B': newmode = BUILD; break;
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case 'C': newmode = CREATE; break;
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case 'F': newmode = MONITOR;break;
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case 'G': newmode = GROW; break;
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case '#':
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case 'D':
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case 'E':
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case 'Q': newmode = MISC; break;
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case 'R':
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case 'S':
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case 'o':
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case 'w':
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case 'K': if (!mode) newmode = MISC; break;
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}
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if (mode && newmode == mode) {
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/* everybody happy ! */
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} else if (mode && newmode != mode) {
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/* not allowed.. */
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fprintf(stderr, Name ": ");
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if (option_index >= 0)
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fprintf(stderr, "--%s", long_options[option_index].name);
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else
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fprintf(stderr, "-%c", opt);
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fprintf(stderr, " would set mode to %s, but it is already %s.\n",
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map_num(modes, newmode),
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map_num(modes, mode));
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exit(2);
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} else if (!mode && newmode) {
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mode = newmode;
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} else {
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/* special case of -c --help */
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if (opt == 'c' &&
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( strncmp(optarg, "--h", 3)==0 ||
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strncmp(optarg, "-h", 2)==0)) {
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fputs(Help_config, stderr);
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exit(0);
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}
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if (option_index >= 0)
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fprintf(stderr, "--%s", long_options[option_index].name);
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else
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fprintf(stderr, "-%c", opt);
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fprintf(stderr, " does not set the mode, and so cannot be first.\n");
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exit(2);
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}
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/* if we just set the mode, then done */
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switch(opt) {
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case '@':
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case '#':
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case 'A':
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case 'B':
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case 'C':
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case 'F':
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case 'G':
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continue;
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}
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if (opt == 1) {
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/* an undecorated option - must be a device name.
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*/
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if (devs_found > 0 && mode == '@' && !devmode) {
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fprintf(stderr, Name ": Must give one of -a/-r/-f for subsequent devices at %s\n", optarg);
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exit(2);
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}
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if (devs_found > 0 && mode == 'G' && !devmode) {
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fprintf(stderr, Name ": Must give one of -a for devices do add: %s\n", optarg);
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exit(2);
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}
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dv = malloc(sizeof(*dv));
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if (dv == NULL) {
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fprintf(stderr, Name ": malloc failed\n");
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exit(3);
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}
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dv->devname = optarg;
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dv->disposition = devmode;
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dv->next = NULL;
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*devlistend = dv;
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devlistend = &dv->next;
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devs_found++;
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continue;
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}
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/* We've got a mode, and opt is now something else which
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* could depend on the mode */
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#define O(a,b) ((a<<8)|b)
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switch (O(mode,opt)) {
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case O(CREATE,'c'):
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case O(BUILD,'c'): /* chunk or rounding */
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if (chunk) {
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fprintf(stderr, Name ": chunk/rounding may only be specified once. "
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"Second value is %s.\n", optarg);
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exit(2);
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}
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chunk = strtol(optarg, &c, 10);
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if (!optarg[0] || *c || chunk<4 || ((chunk-1)&chunk)) {
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fprintf(stderr, Name ": invalid chunk/rounding value: %s\n",
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optarg);
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exit(2);
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}
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continue;
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case O(GROW,'z'):
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case O(CREATE,'z'): /* size */
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if (size >= 0) {
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fprintf(stderr, Name ": size may only be specified once. "
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"Second value is %s.\n", optarg);
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exit(2);
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}
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if (strcmp(optarg, "max")==0)
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size = 0;
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else {
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size = strtol(optarg, &c, 10);
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if (!optarg[0] || *c || size < 4) {
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fprintf(stderr, Name ": invalid size: %s\n",
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optarg);
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exit(2);
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}
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}
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continue;
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case O(GROW,'l'): /* hack - needed to understand layout */
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case O(CREATE,'l'):
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case O(BUILD,'l'): /* set raid level*/
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if (level != UnSet) {
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fprintf(stderr, Name ": raid level may only be set once. "
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"Second value is %s.\n", optarg);
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exit(2);
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}
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level = map_name(pers, optarg);
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if (level == UnSet) {
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fprintf(stderr, Name ": invalid raid level: %s\n",
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optarg);
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exit(2);
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}
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if (level != 0 && level != -1 && level != 1 && level != -4 && level != -5 && mode == BUILD) {
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fprintf(stderr, Name ": Raid level %s not permitted with --build.\n",
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optarg);
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exit(2);
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}
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if (sparedisks > 0 && level < 1 && level >= -1) {
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fprintf(stderr, Name ": raid level %s is incompatible with spare-devices setting.\n",
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optarg);
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exit(2);
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}
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ident.level = level;
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continue;
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case O(CREATE,'p'): /* raid5 layout */
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case O(BUILD,'p'): /* faulty layout */
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case O(GROW, 'p'): /* faulty reconfig */
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if (layout != UnSet) {
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fprintf(stderr,Name ": layout may only be sent once. "
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"Second value was %s\n", optarg);
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exit(2);
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}
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switch(level) {
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default:
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fprintf(stderr, Name ": layout not meaningful for %s arrays.\n",
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map_num(pers, level));
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exit(2);
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case UnSet:
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fprintf(stderr, Name ": raid level must be given before layout.\n");
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exit(2);
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case 5:
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case 6:
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layout = map_name(r5layout, optarg);
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if (layout==UnSet) {
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fprintf(stderr, Name ": layout %s not understood for raid5.\n",
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optarg);
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exit(2);
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}
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break;
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case 10:
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/* 'f' or 'n' followed by a number <= raid_disks */
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if ((optarg[0] != 'n' && optarg[0] != 'f') ||
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(copies = strtoul(optarg+1, &cp, 10)) < 1 ||
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copies > 200 ||
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*cp) {
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fprintf(stderr, Name ": layout for raid10 must be 'nNN' or 'fNN' where NN is a number, not %s\n", optarg);
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exit(2);
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}
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if (optarg[0] == 'n')
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layout = 256 + copies;
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else
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layout = 1 + (copies<<8);
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break;
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case -5: /* Faulty
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* modeNNN
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*/
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{
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int ln = strcspn(optarg, "0123456789");
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char *m = strdup(optarg);
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int mode;
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m[ln] = 0;
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mode = map_name(faultylayout, m);
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if (mode == UnSet) {
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fprintf(stderr, Name ": layout %s not understood for faulty.\n",
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optarg);
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exit(2);
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}
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layout = mode | (atoi(optarg+ln)<< ModeShift);
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}
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}
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continue;
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case O(CREATE,3):
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case O(BUILD,3): /* assume clean */
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assume_clean = 1;
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continue;
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case O(GROW,'n'):
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case O(CREATE,'n'):
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case O(BUILD,'n'): /* number of raid disks */
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if (raiddisks) {
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fprintf(stderr, Name ": raid-devices set twice: %d and %s\n",
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raiddisks, optarg);
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exit(2);
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}
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raiddisks = strtol(optarg, &c, 10);
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if (!optarg[0] || *c || raiddisks<=0 || raiddisks > MD_SB_DISKS) {
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fprintf(stderr, Name ": invalid number of raid devices: %s\n",
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optarg);
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exit(2);
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}
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if (raiddisks == 1 && !force && level != -5) {
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fprintf(stderr, Name ": '1' is an unusual number of drives for an array, so it is probably\n"
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" a mistake. If you really mean it you will need to specify --force before\n"
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" setting the number of drives.\n");
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exit(2);
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}
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ident.raid_disks = raiddisks;
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continue;
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case O(CREATE,'x'): /* number of spare (eXtra) discs */
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if (sparedisks) {
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fprintf(stderr,Name ": spare-devices set twice: %d and %s\n",
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sparedisks, optarg);
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exit(2);
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}
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if (level != UnSet && level <= 0 && level >= -1) {
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fprintf(stderr, Name ": spare-devices setting is incompatible with raid level %d\n",
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level);
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exit(2);
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}
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sparedisks = strtol(optarg, &c, 10);
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if (!optarg[0] || *c || sparedisks < 0 || sparedisks > MD_SB_DISKS - raiddisks) {
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fprintf(stderr, Name ": invalid number of spare-devices: %s\n",
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optarg);
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exit(2);
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}
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continue;
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case O(CREATE,'a'):
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case O(BUILD,'a'):
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case O(ASSEMBLE,'a'): /* auto-creation of device node */
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if (optarg == NULL)
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autof = -1;
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else if (strcasecmp(optarg,"no")==0)
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autof = 0;
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else if (strcasecmp(optarg,"yes")==0 || strcasecmp(optarg,"md")==0)
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autof = -1;
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else {
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/* There might be digits, and maybe a hypen, at the end */
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char *e = optarg + strlen(optarg);
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int num = 4;
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int len;
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while (e > optarg && isdigit(e[-1]))
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e--;
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if (*e) {
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num = atoi(e);
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if (num <= 0) num = 1;
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}
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if (e > optarg && e[-1] == '-')
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e--;
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len = e - optarg;
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if ((len == 3 && strncasecmp(optarg,"mdp",3)==0) ||
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(len == 1 && strncasecmp(optarg,"p",1)==0) ||
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(len >= 4 && strncasecmp(optarg,"part",4)==0))
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autof = num;
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else {
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fprintf(stderr, Name ": --auto flag arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n"
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" optionally followed by a number.\n",
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optarg);
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exit(2);
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}
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}
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continue;
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case O(BUILD,'f'): /* force honouring '-n 1' */
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case O(CREATE,'f'): /* force honouring of device list */
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case O(ASSEMBLE,'f'): /* force assembly */
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case O(MISC,'f'): /* force zero */
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force=1;
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continue;
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/* now for the Assemble options */
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case O(ASSEMBLE,'u'): /* uuid of array */
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if (ident.uuid_set) {
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fprintf(stderr, Name ": uuid cannot be set twice. "
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"Second value %s.\n", optarg);
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exit(2);
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}
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if (parse_uuid(optarg, ident.uuid))
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ident.uuid_set = 1;
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else {
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fprintf(stderr,Name ": Bad uuid: %s\n", optarg);
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exit(2);
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}
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continue;
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case O(ASSEMBLE,'m'): /* super-minor for array */
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if (ident.super_minor != UnSet) {
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fprintf(stderr, Name ": super-minor cannot be set twice. "
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"Second value: %s.\n", optarg);
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exit(2);
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}
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if (strcmp(optarg, "dev")==0)
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ident.super_minor = -2;
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else {
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ident.super_minor = strtoul(optarg, &cp, 10);
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if (!optarg[0] || *cp) {
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fprintf(stderr, Name ": Bad super-minor number: %s.\n", optarg);
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exit(2);
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}
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}
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continue;
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case O(ASSEMBLE,'U'): /* update the superblock */
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if (update) {
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fprintf(stderr, Name ": Can only update one aspect of superblock, both %s and %s given.\n",
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update, optarg);
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exit(2);
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}
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update = optarg;
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if (strcmp(update, "sparc2.2")==0)
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continue;
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if (strcmp(update, "super-minor") == 0)
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continue;
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if (strcmp(update, "summaries")==0)
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continue;
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if (strcmp(update, "resync")==0)
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continue;
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fprintf(stderr, Name ": '--update %s' invalid. Only 'sparc2.2', 'super-minor', 'resync' or 'summaries' supported\n",update);
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exit(2);
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case O(ASSEMBLE,'c'): /* config file */
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case O(MISC, 'c'):
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case O(MONITOR,'c'):
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if (configfile) {
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fprintf(stderr, Name ": configfile cannot be set twice. "
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"Second value is %s.\n", optarg);
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exit(2);
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}
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configfile = optarg;
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/* FIXME possibly check that config file exists. Even parse it */
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continue;
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case O(ASSEMBLE,'s'): /* scan */
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case O(MISC,'s'):
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case O(MONITOR,'s'):
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scan = 1;
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continue;
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case O(MONITOR,'m'): /* mail address */
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if (mailaddr)
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fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n",
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optarg);
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else
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mailaddr = optarg;
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continue;
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case O(MONITOR,'p'): /* alert program */
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if (program)
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fprintf(stderr, Name ": only specify one alter program. %s ignored.\n",
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optarg);
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else
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program = optarg;
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continue;
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|
|
case O(MONITOR,'d'): /* delay in seconds */
|
|
if (delay)
|
|
fprintf(stderr, Name ": only specify delay once. %s ignored.\n",
|
|
optarg);
|
|
else {
|
|
delay = strtol(optarg, &c, 10);
|
|
if (!optarg[0] || *c || delay<1) {
|
|
fprintf(stderr, Name ": invalid delay: %s\n",
|
|
optarg);
|
|
exit(2);
|
|
}
|
|
}
|
|
continue;
|
|
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;
|
|
|
|
/* 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';
|
|
continue;
|
|
case O(MANAGE,'r'): /* remove a drive */
|
|
devmode = 'r';
|
|
continue;
|
|
case O(MANAGE,'f'): /* set faulty */
|
|
devmode = 'f';
|
|
continue;
|
|
case O(MANAGE,'R'):
|
|
case O(ASSEMBLE,'R'):
|
|
case O(BUILD,'R'):
|
|
case O(CREATE,'R'): /* Run the array */
|
|
if (runstop < 0) {
|
|
fprintf(stderr, Name ": Cannot both Stop and Run an array\n");
|
|
exit(2);
|
|
}
|
|
runstop = 1;
|
|
continue;
|
|
case O(MANAGE,'S'):
|
|
if (runstop > 0) {
|
|
fprintf(stderr, Name ": Cannot both Run and Stop an array\n");
|
|
exit(2);
|
|
}
|
|
runstop = -1;
|
|
continue;
|
|
|
|
case O(MANAGE,'o'):
|
|
if (readonly < 0) {
|
|
fprintf(stderr, Name ": Cannot have both readonly and readwrite\n");
|
|
exit(2);
|
|
}
|
|
readonly = 1;
|
|
continue;
|
|
case O(MANAGE,'w'):
|
|
if (readonly > 0) {
|
|
fprintf(stderr, Name ": Cannot have both readwrite and readonly.\n");
|
|
exit(2);
|
|
}
|
|
readonly = -1;
|
|
continue;
|
|
|
|
case O(MISC,'Q'):
|
|
case O(MISC,'D'):
|
|
case O(MISC,'E'):
|
|
case O(MISC,'K'):
|
|
case O(MISC,'R'):
|
|
case O(MISC,'S'):
|
|
case O(MISC,'o'):
|
|
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",
|
|
devmode =='E'?opt:devmode);
|
|
exit(2);
|
|
}
|
|
devmode = opt;
|
|
continue;
|
|
case O(MISC,'t'):
|
|
test = 1;
|
|
continue;
|
|
|
|
case O(MISC, 22):
|
|
if (devmode != 'E') {
|
|
fprintf(stderr, Name ": --sparc2.2 only allowed with --examine\n");
|
|
exit(2);
|
|
}
|
|
SparcAdjust = 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));
|
|
exit(2);
|
|
|
|
}
|
|
|
|
if (!mode) {
|
|
fputs(Usage, stderr);
|
|
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 && ! scan)) {
|
|
if (devs_found < 1) {
|
|
fprintf(stderr, Name ": an md device must be given in this mode\n");
|
|
exit(2);
|
|
}
|
|
if ((int)ident.super_minor == -2 && autof) {
|
|
fprintf(stderr, Name ": --super-minor=dev is incompatible with --auto\n");
|
|
exit(2);
|
|
}
|
|
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);
|
|
}
|
|
}
|
|
|
|
rv = 0;
|
|
switch(mode) {
|
|
case MANAGE:
|
|
/* readonly, add/remove, readwrite, runstop */
|
|
if (readonly>0)
|
|
rv = Manage_ro(devlist->devname, mdfd, readonly);
|
|
if (!rv && devs_found>1)
|
|
rv = Manage_subdevs(devlist->devname, mdfd,
|
|
devlist->next);
|
|
if (!rv && readonly < 0)
|
|
rv = Manage_ro(devlist->devname, mdfd, readonly);
|
|
if (!rv && runstop)
|
|
rv = Manage_runstop(devlist->devname, mdfd, runstop);
|
|
break;
|
|
case ASSEMBLE:
|
|
if (devs_found == 1 && ident.uuid_set == 0 &&
|
|
ident.super_minor == UnSet && !scan ) {
|
|
/* Only a device has been given, so get details from config file */
|
|
mddev_ident_t array_ident = conf_get_ident(configfile, devlist->devname);
|
|
if (array_ident == NULL) {
|
|
fprintf(stderr, Name ": %s not identified in config file.\n",
|
|
devlist->devname);
|
|
rv |= 1;
|
|
} else {
|
|
mdfd = open_mddev(devlist->devname, array_ident->autof);
|
|
if (mdfd < 0)
|
|
rv |= 1;
|
|
else {
|
|
rv |= Assemble(devlist->devname, mdfd, array_ident, configfile,
|
|
NULL,
|
|
readonly, runstop, update, verbose, force);
|
|
close(mdfd);
|
|
}
|
|
}
|
|
} else if (!scan)
|
|
rv = Assemble(devlist->devname, mdfd, &ident, configfile,
|
|
devlist->next,
|
|
readonly, runstop, update, verbose, 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);
|
|
}
|
|
for (dv = devlist ; dv ; dv=dv->next) {
|
|
mddev_ident_t array_ident = conf_get_ident(configfile, dv->devname);
|
|
if (array_ident == NULL) {
|
|
fprintf(stderr, Name ": %s not identified in config file.\n",
|
|
dv->devname);
|
|
rv |= 1;
|
|
continue;
|
|
}
|
|
mdfd = open_mddev(dv->devname, array_ident->autof);
|
|
if (mdfd < 0) {
|
|
rv |= 1;
|
|
continue;
|
|
}
|
|
rv |= Assemble(dv->devname, mdfd, array_ident, configfile,
|
|
NULL,
|
|
readonly, runstop, update, verbose, force);
|
|
close(mdfd);
|
|
}
|
|
} else {
|
|
mddev_ident_t array_list = conf_get_ident(configfile, NULL);
|
|
if (!array_list) {
|
|
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, layout, raiddisks, devlist->next, assume_clean);
|
|
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);
|
|
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);
|
|
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);
|
|
} else {
|
|
if (devlist == NULL) {
|
|
if ((devmode == 'S' ||devmode=='D') && scan) {
|
|
/* apply to all devices in /proc/mdstat */
|
|
struct mdstat_ent *ms = mdstat_read(0);
|
|
struct mdstat_ent *e;
|
|
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;
|
|
}
|
|
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);
|
|
}
|
|
put_md_name(name);
|
|
}
|
|
} 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;
|
|
case 'K': /* Zero superblock */
|
|
rv |= Kill(dv->devname, force); continue;
|
|
case 'Q':
|
|
rv |= Query(dv->devname); continue;
|
|
}
|
|
mdfd = open_mddev(dv->devname, 0);
|
|
if (mdfd>=0)
|
|
switch(dv->disposition) {
|
|
case 'R':
|
|
rv |= Manage_runstop(dv->devname, mdfd, 1); break;
|
|
case 'S':
|
|
rv |= Manage_runstop(dv->devname, mdfd, -1); break;
|
|
case 'o':
|
|
rv |= Manage_ro(dv->devname, mdfd, 1); break;
|
|
case 'w':
|
|
rv |= Manage_ro(dv->devname, mdfd, -1); break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case MONITOR:
|
|
if (!devlist && !scan) {
|
|
fprintf(stderr, Name ": Cannot monitor: need --scan or at least one device\n");
|
|
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, 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");
|
|
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 ((size >= 0) + (raiddisks != 0) + (layout != UnSet) > 1) {
|
|
fprintf(stderr, Name ": can change at most one of size, raiddisks, and layout\n");
|
|
rv = 1;
|
|
break;
|
|
} else if (layout != UnSet)
|
|
rv = Manage_reconfig(devlist->devname, mdfd, layout);
|
|
else if (size >= 0 || raiddisks)
|
|
rv = Manage_resize(devlist->devname, mdfd, size, raiddisks);
|
|
else
|
|
fprintf(stderr, Name ": no changes to --grow\n");
|
|
break;
|
|
}
|
|
exit(rv);
|
|
}
|