2001-06-08 04:36:23 +02:00
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/*
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* mdctl - manage Linux "md" devices aka RAID arrays.
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*
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2002-03-07 00:17:40 +01:00
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* Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
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2001-06-08 04:36:23 +02:00
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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 "mdctl.h"
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#include "md_p.h"
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2001-08-23 04:33:20 +02:00
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int open_mddev(char *dev)
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2001-06-08 04:36:23 +02:00
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{
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2001-08-23 04:33:20 +02:00
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int mdfd = open(dev, O_RDWR, 0);
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if (mdfd < 0)
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fprintf(stderr,Name ": error opening %s: %s\n",
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dev, strerror(errno));
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else if (md_get_version(mdfd) <= 0) {
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fprintf(stderr, Name ": %s does not appear to be an md device\n",
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dev);
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close(mdfd);
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mdfd = -1;
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2001-06-08 04:36:23 +02:00
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}
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2001-08-23 04:33:20 +02:00
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return mdfd;
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}
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2001-06-08 04:36:23 +02:00
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2001-08-23 04:33:20 +02:00
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int main(int argc, char *argv[])
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{
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char mode = '\0';
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int opt;
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char *help_text;
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char *c;
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int rv;
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int i;
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int chunk = 0;
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int size = 0;
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int level = -10;
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int layout = -1;
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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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2002-03-07 00:17:40 +01:00
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char *cp;
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2001-08-23 04:33:20 +02:00
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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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2002-03-07 00:17:40 +01:00
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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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2001-08-23 04:33:20 +02:00
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int devs_found = 0;
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int verbose = 0;
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2002-03-07 00:17:40 +01:00
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int brief = 0;
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2001-08-23 04:33:20 +02:00
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int force = 0;
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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 mdfd = -1;
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ident.uuid_set=0;
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2002-03-07 00:17:40 +01:00
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ident.level = -10;
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ident.raid_disks = -1;
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2001-08-23 04:33:20 +02:00
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ident.super_minor= -1;
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ident.devices=0;
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while ((opt=getopt_long(argc, argv,
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short_options, long_options,
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NULL)) != -1) {
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switch(opt) {
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case '@': /* just incase they say --manage */
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case 'A':
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case 'B':
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case 'C':
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case 'D':
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case 'E':
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case 'F':
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/* setting mode - only once */
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if (mode) {
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fprintf(stderr, Name ": --%s/-%c not allowed, mode already set to %s\n",
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long_options[opt-'A'+1].name,
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long_options[opt-'A'+1].val,
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long_options[mode-'A'+1].name);
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exit(2);
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}
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mode = opt;
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continue;
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case 'h':
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help_text = Help;
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switch (mode) {
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case 'C': help_text = Help_create; break;
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case 'B': help_text = Help_build; break;
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case 'A': help_text = Help_assemble; 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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2002-03-07 00:17:40 +01:00
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case 'b': brief = 1;
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continue;
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2001-08-23 04:33:20 +02:00
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case 1: /* an undecorated option - must be a device name.
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* Depending on mode, it could be that:
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2002-03-07 00:17:40 +01:00
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* All devices listed are "md" devices : --Detail, -As
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* No devices are "md" devices : --Examine
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* First device is "md", others are component: -A,-B,-C
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* Only accept on device before mode is determined.
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* If mode is @, then require devmode for other devices.
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2001-08-23 04:33:20 +02:00
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*/
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2002-03-07 00:17:40 +01:00
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if (devs_found > 0 && !mode ) {
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fprintf(stderr, Name ": Must give mode flag before second device name at %s\n", optarg);
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exit(2);
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}
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if (devs_found > 0 && mode == '@' && !devmode) {
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fprintf(stderr, Name ": Must give on of -a/-r/-f for subsequent devices at %s\n", optarg);
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2001-08-23 04:33:20 +02:00
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exit(2);
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}
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2002-03-07 00:17:40 +01:00
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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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2001-08-23 04:33:20 +02:00
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devs_found++;
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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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2001-06-14 07:33:53 +02:00
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exit(2);
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2001-08-23 04:33:20 +02:00
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default:
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/* force mode setting - @==manage if nothing else */
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if (!mode) mode = '@';
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2001-06-14 07:33:53 +02:00
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}
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2001-08-23 04:33:20 +02:00
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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('C','c'):
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case O('B','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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2001-06-08 04:36:23 +02:00
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2001-08-23 04:33:20 +02:00
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case O('C','z'): /* size */
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if (size) {
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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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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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continue;
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2001-06-08 04:36:23 +02:00
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2001-08-23 04:33:20 +02:00
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case O('C','l'):
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case O('B','l'): /* set raid level*/
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if (level != -10) {
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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 == -10) {
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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 && mode == 'B') {
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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) {
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fprintf(stderr, Name ": raid level %s is incompatible with spare-disks setting.\n",
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optarg);
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exit(2);
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}
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2002-03-07 00:17:40 +01:00
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ident.level = level;
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2001-08-23 04:33:20 +02:00
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continue;
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2001-06-08 04:36:23 +02:00
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2001-08-23 04:33:20 +02:00
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case O('C','p'): /* raid5 layout */
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if (layout >= 0) {
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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 now meaningful for %s arrays.\n",
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map_num(pers, level));
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exit(2);
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case -10:
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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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layout = map_name(r5layout, optarg);
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if (layout==-10) {
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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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}
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continue;
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case O('C','n'):
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case O('B','n'): /* number of raid disks */
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if (raiddisks) {
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fprintf(stderr, Name ": raid-disks 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 disks: %s\n",
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optarg);
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exit(2);
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}
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2002-03-07 00:17:40 +01:00
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ident.raid_disks = raiddisks;
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2001-08-23 04:33:20 +02:00
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continue;
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case O('C','x'): /* number of spare (eXtra) discs */
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if (sparedisks) {
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fprintf(stderr,Name ": spare-disks 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 > -10 && level < 1) {
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fprintf(stderr, Name ": spare-disks 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 disks: %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('C','f'): /* force honouring of device list */
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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('A','f'): /* force assembly */
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force = 1;
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continue;
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case O('A','u'): /* uuid of array */
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if (ident.uuid_set) {
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2002-03-07 00:17:40 +01:00
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fprintf(stderr, Name ": uuid cannot be set twice. "
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2001-08-23 04:33:20 +02:00
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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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2002-03-07 00:17:40 +01:00
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case O('A','m'): /* super-minor for array */
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if (ident.super_minor >= 0) {
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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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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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continue;
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|
2001-08-23 04:33:20 +02:00
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case O('A','c'): /* config file */
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case O('F','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('A','s'): /* scan */
|
2002-03-07 00:17:40 +01:00
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case O('E','s'):
|
2001-08-23 04:33:20 +02:00
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scan = 1;
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continue;
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case O('F','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('F','p'): /* alert program */
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if (program)
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|
|
fprintf(stderr, Name ": only specify one alter program. %s ignored.\n",
|
|
|
|
optarg);
|
|
|
|
else
|
|
|
|
program = optarg;
|
|
|
|
continue;
|
2001-06-08 04:36:23 +02:00
|
|
|
|
2001-08-23 04:33:20 +02:00
|
|
|
case O('F','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;
|
|
|
|
|
|
|
|
|
|
|
|
/* now the general management options. Some are applicable
|
|
|
|
* to other modes. None have arguments.
|
|
|
|
*/
|
|
|
|
case O('@','a'):
|
|
|
|
case O('C','a'):
|
|
|
|
case O('B','a'):
|
|
|
|
case O('A','a'): /* add a drive */
|
|
|
|
devmode = 'a';
|
|
|
|
continue;
|
|
|
|
case O('@','r'): /* remove a drive */
|
|
|
|
devmode = 'r';
|
|
|
|
continue;
|
|
|
|
case O('@','f'): /* set faulty */
|
|
|
|
devmode = 'f';
|
|
|
|
continue;
|
|
|
|
case O('@','R'):
|
|
|
|
case O('A','R'):
|
|
|
|
case O('B','R'):
|
|
|
|
case O('C','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('@','S'):
|
|
|
|
if (runstop > 0) {
|
|
|
|
fprintf(stderr, Name ": Cannot both Run and Stop an array\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
runstop = -1;
|
|
|
|
continue;
|
|
|
|
|
|
|
|
case O('@','o'):
|
|
|
|
if (readonly < 0) {
|
|
|
|
fprintf(stderr, Name ": Cannot have both readonly and readwrite\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
readonly = 1;
|
|
|
|
continue;
|
|
|
|
case O('@','w'):
|
|
|
|
if (readonly > 0) {
|
|
|
|
fprintf(stderr, "mkdctl: Cannot have both readwrite and readonly.\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
readonly = -1;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
/* We have now processed all the valid options. Anything else is
|
|
|
|
* an error
|
|
|
|
*/
|
|
|
|
fprintf(stderr, Name ": option %c not valid in mode %c\n",
|
|
|
|
opt, mode);
|
2001-06-08 04:36:23 +02:00
|
|
|
exit(2);
|
2001-08-23 04:33:20 +02:00
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!mode) {
|
|
|
|
fputs(Usage, stderr);
|
2001-06-08 04:36:23 +02:00
|
|
|
exit(2);
|
|
|
|
}
|
2001-08-23 04:33:20 +02:00
|
|
|
/* 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 ther 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.
|
2001-06-08 04:36:23 +02:00
|
|
|
*/
|
2001-08-23 04:33:20 +02:00
|
|
|
|
|
|
|
if (mode=='@' || mode == 'B' || mode == 'C' || (mode == 'A' && ! scan)) {
|
|
|
|
if (devs_found < 1) {
|
|
|
|
fprintf(stderr, Name ": an md device must be given in this mode\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
2002-03-07 00:17:40 +01:00
|
|
|
mdfd = open_mddev(devlist->devname);
|
2001-08-23 04:33:20 +02:00
|
|
|
if (mdfd < 0)
|
|
|
|
exit(1);
|
2001-06-08 04:36:23 +02:00
|
|
|
}
|
2001-08-23 04:33:20 +02:00
|
|
|
|
|
|
|
|
|
|
|
rv = 0;
|
|
|
|
switch(mode) {
|
|
|
|
case '@':/* Management */
|
|
|
|
/* readonly, add/remove, readwrite, runstop */
|
|
|
|
if (readonly>0)
|
2002-03-07 00:17:40 +01:00
|
|
|
rv = Manage_ro(devlist->devname, mdfd, readonly);
|
2001-08-23 04:33:20 +02:00
|
|
|
if (!rv && devs_found>1)
|
2002-03-07 00:17:40 +01:00
|
|
|
rv = Manage_subdevs(devlist->devname, mdfd,
|
|
|
|
devlist->next);
|
2001-08-23 04:33:20 +02:00
|
|
|
if (!rv && readonly < 0)
|
2002-03-07 00:17:40 +01:00
|
|
|
rv = Manage_ro(devlist->devname, mdfd, readonly);
|
2001-08-23 04:33:20 +02:00
|
|
|
if (!rv && runstop)
|
2002-03-07 00:17:40 +01:00
|
|
|
rv = Manage_runstop(devlist->devname, mdfd, runstop);
|
2001-08-23 04:33:20 +02:00
|
|
|
break;
|
|
|
|
case 'A': /* Assemble */
|
|
|
|
if (!scan)
|
2002-03-07 00:17:40 +01:00
|
|
|
rv = Assemble(devlist->devname, mdfd, &ident, configfile,
|
|
|
|
devlist->next,
|
2001-08-23 04:33:20 +02:00
|
|
|
readonly, runstop, verbose, force);
|
|
|
|
else if (devs_found>0)
|
2002-03-07 00:17:40 +01:00
|
|
|
for (dv = devlist ; dv ; dv=dv->next) {
|
|
|
|
mddev_ident_t array_ident = conf_get_ident(configfile, dv->devname);
|
|
|
|
mdfd = open_mddev(dv->devname);
|
2001-08-23 04:33:20 +02:00
|
|
|
if (mdfd < 0) {
|
|
|
|
rv |= 1;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
if (array_ident == NULL) {
|
|
|
|
fprintf(stderr, Name ": %s not identified in config file.\n",
|
2002-03-07 00:17:40 +01:00
|
|
|
dv->devname);
|
2001-08-23 04:33:20 +02:00
|
|
|
rv |= 1;
|
|
|
|
continue;
|
|
|
|
}
|
2002-03-07 00:17:40 +01:00
|
|
|
rv |= Assemble(dv->devname, mdfd, array_ident, configfile,
|
|
|
|
NULL,
|
2001-08-23 04:33:20 +02:00
|
|
|
readonly, runstop, verbose, force);
|
|
|
|
}
|
|
|
|
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) {
|
2002-03-07 00:17:40 +01:00
|
|
|
mdu_array_info_t array;
|
2001-08-23 04:33:20 +02:00
|
|
|
mdfd = open_mddev(array_list->devname);
|
|
|
|
if (mdfd < 0) {
|
|
|
|
rv |= 1;
|
|
|
|
continue;
|
|
|
|
}
|
2002-03-07 00:17:40 +01:00
|
|
|
if (ioctl(mdfd, GET_ARRAY_INFO, &array)>=0)
|
|
|
|
/* already assembled, skip */
|
|
|
|
continue;
|
2001-08-23 04:33:20 +02:00
|
|
|
rv |= Assemble(array_list->devname, mdfd,
|
|
|
|
array_list, configfile,
|
2002-03-07 00:17:40 +01:00
|
|
|
NULL,
|
2001-08-23 04:33:20 +02:00
|
|
|
readonly, runstop, verbose, force);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'B': /* Build */
|
2002-03-07 00:17:40 +01:00
|
|
|
rv = Build(devlist->devname, mdfd, chunk, level, raiddisks, devlist->next);
|
2001-08-23 04:33:20 +02:00
|
|
|
break;
|
|
|
|
case 'C': /* Create */
|
2002-03-07 00:17:40 +01:00
|
|
|
rv = Create(devlist->devname, mdfd, chunk, level, layout, size,
|
2001-08-23 04:33:20 +02:00
|
|
|
raiddisks, sparedisks,
|
2002-03-07 00:17:40 +01:00
|
|
|
devs_found-1, devlist->next, runstop, verbose, force);
|
2001-08-23 04:33:20 +02:00
|
|
|
break;
|
|
|
|
case 'D': /* Detail */
|
2002-03-07 00:17:40 +01:00
|
|
|
for (dv=devlist ; dv; dv=dv->next)
|
|
|
|
rv |= Detail(dv->devname, brief);
|
2001-08-23 04:33:20 +02:00
|
|
|
break;
|
|
|
|
case 'E': /* Examine */
|
2002-03-07 00:17:40 +01:00
|
|
|
if (devlist == NULL && scan==0) {
|
|
|
|
fprintf(stderr, Name ": No devices to examine\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
rv = Examine(devlist, devlist?brief:!verbose, configfile);
|
2001-08-23 04:33:20 +02:00
|
|
|
break;
|
|
|
|
case 'F': /* Follow */
|
2002-03-07 00:17:40 +01:00
|
|
|
rv= Monitor(devlist, mailaddr, program,
|
2001-08-23 04:33:20 +02:00
|
|
|
delay?delay:60, configfile);
|
2001-06-08 04:36:23 +02:00
|
|
|
}
|
2001-08-23 04:33:20 +02:00
|
|
|
exit(rv);
|
2001-06-08 04:36:23 +02:00
|
|
|
}
|