+++ /dev/null
-/*
- * mdctl - manage Linux "md" devices aka RAID arrays.
- *
- * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
- *
- *
- * 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@cse.unsw.edu.au>
- * Paper: Neil Brown
- * School of Computer Science and Engineering
- * The University of New South Wales
- * Sydney, 2052
- * Australia
- */
-
-#include "mdctl.h"
-#include "md_p.h"
-
-int open_mddev(char *dev)
-{
- int mdfd = open(dev, O_RDWR, 0);
- if (mdfd < 0)
- fprintf(stderr,Name ": error opening %s: %s\n",
- dev, strerror(errno));
- else if (md_get_version(mdfd) <= 0) {
- fprintf(stderr, Name ": %s does not appear to be an md device\n",
- dev);
- close(mdfd);
- mdfd = -1;
- }
- return mdfd;
-}
-
-
-
-int main(int argc, char *argv[])
-{
- char mode = '\0';
- int opt;
- char *help_text;
- char *c;
- int rv;
- int i;
-
- int chunk = 0;
- int size = 0;
- int level = -10;
- int layout = -1;
- int raiddisks = 0;
- int sparedisks = 0;
- struct mddev_ident_s ident;
- char *configfile = NULL;
- char *cp;
- int scan = 0;
- char devmode = 0;
- int runstop = 0;
- int readonly = 0;
- mddev_dev_t devlist = NULL;
- mddev_dev_t *devlistend = & devlist;
- mddev_dev_t dv;
- int devs_found = 0;
- int verbose = 0;
- int brief = 0;
- int force = 0;
-
- char *mailaddr = NULL;
- char *program = NULL;
- int delay = 0;
-
- int mdfd = -1;
-
- ident.uuid_set=0;
- ident.level = -10;
- ident.raid_disks = -1;
- ident.super_minor= -1;
- ident.devices=0;
-
- while ((opt=getopt_long(argc, argv,
- short_options, long_options,
- NULL)) != -1) {
-
- switch(opt) {
- case '@': /* just incase they say --manage */
- case 'A':
- case 'B':
- case 'C':
- case 'D':
- case 'E':
- case 'F':
- /* setting mode - only once */
- if (mode) {
- fprintf(stderr, Name ": --%s/-%c not allowed, mode already set to %s\n",
- long_options[opt-'A'+1].name,
- long_options[opt-'A'+1].val,
- long_options[mode-'A'+1].name);
- exit(2);
- }
- mode = opt;
- continue;
-
- case 'h':
- help_text = Help;
- switch (mode) {
- case 'C': help_text = Help_create; break;
- case 'B': help_text = Help_build; break;
- case 'A': help_text = Help_assemble; break;
- }
- fputs(help_text,stderr);
- exit(0);
-
- case 'V':
- fputs(Version, stderr);
- exit(0);
-
- case 'v': verbose = 1;
- continue;
-
- case 'b': brief = 1;
- continue;
-
- case 1: /* an undecorated option - must be a device name.
- * Depending on mode, it could be that:
- * All devices listed are "md" devices : --Detail, -As
- * No devices are "md" devices : --Examine
- * First device is "md", others are component: -A,-B,-C
- * Only accept on device before mode is determined.
- * If mode is @, then require devmode for other devices.
- */
- if (devs_found > 0 && !mode ) {
- fprintf(stderr, Name ": Must give mode flag before second device name at %s\n", optarg);
- exit(2);
- }
- if (devs_found > 0 && mode == '@' && !devmode) {
- fprintf(stderr, Name ": Must give on of -a/-r/-f for subsequent devices at %s\n", optarg);
- exit(2);
- }
- dv = malloc(sizeof(*dv));
- if (dv == NULL) {
- fprintf(stderr, Name ": malloc failed\n");
- exit(3);
- }
- dv->devname = optarg;
- dv->disposition = devmode;
- dv->next = NULL;
- *devlistend = dv;
- devlistend = &dv->next;
-
- devs_found++;
- continue;
-
- case ':':
- case '?':
- fputs(Usage, stderr);
- exit(2);
- default:
- /* force mode setting - @==manage if nothing else */
- if (!mode) mode = '@';
- }
-
- /* We've got a mode, and opt is now something else which
- * could depend on the mode */
-#define O(a,b) ((a<<8)|b)
- switch (O(mode,opt)) {
- case O('C','c'):
- case O('B','c'): /* chunk or rounding */
- if (chunk) {
- fprintf(stderr, Name ": chunk/rounding may only be specified once. "
- "Second value is %s.\n", optarg);
- exit(2);
- }
- chunk = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || chunk<4 || ((chunk-1)&chunk)) {
- fprintf(stderr, Name ": invalid chunk/rounding value: %s\n",
- optarg);
- exit(2);
- }
- continue;
-
- case O('C','z'): /* size */
- if (size) {
- fprintf(stderr, Name ": size may only be specified once. "
- "Second value is %s.\n", optarg);
- exit(2);
- }
- size = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || size < 4) {
- fprintf(stderr, Name ": invalid size: %s\n",
- optarg);
- exit(2);
- }
- continue;
-
- case O('C','l'):
- case O('B','l'): /* set raid level*/
- if (level != -10) {
- fprintf(stderr, Name ": raid level may only be set once. "
- "Second value is %s.\n", optarg);
- exit(2);
- }
- level = map_name(pers, optarg);
- if (level == -10) {
- fprintf(stderr, Name ": invalid raid level: %s\n",
- optarg);
- exit(2);
- }
- if (level > 0 && mode == 'B') {
- fprintf(stderr, Name ": Raid level %s not permitted with --build.\n",
- optarg);
- exit(2);
- }
- if (sparedisks > 0 && level < 1) {
- fprintf(stderr, Name ": raid level %s is incompatible with spare-disks setting.\n",
- optarg);
- exit(2);
- }
- ident.level = level;
- continue;
-
- case O('C','p'): /* raid5 layout */
- if (layout >= 0) {
- fprintf(stderr,Name ": layout may only be sent once. "
- "Second value was %s\n", optarg);
- exit(2);
- }
- switch(level) {
- default:
- fprintf(stderr, Name ": layout now meaningful for %s arrays.\n",
- map_num(pers, level));
- exit(2);
- case -10:
- fprintf(stderr, Name ": raid level must be given before layout.\n");
- exit(2);
-
- case 5:
- layout = map_name(r5layout, optarg);
- if (layout==-10) {
- fprintf(stderr, Name ": layout %s not understood for raid5.\n",
- optarg);
- exit(2);
- }
- break;
- }
- continue;
-
- case O('C','n'):
- case O('B','n'): /* number of raid disks */
- if (raiddisks) {
- fprintf(stderr, Name ": raid-disks set twice: %d and %s\n",
- raiddisks, optarg);
- exit(2);
- }
- raiddisks = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || raiddisks<=0 || raiddisks > MD_SB_DISKS) {
- fprintf(stderr, Name ": invalid number of raid disks: %s\n",
- optarg);
- exit(2);
- }
- ident.raid_disks = raiddisks;
- continue;
-
- case O('C','x'): /* number of spare (eXtra) discs */
- if (sparedisks) {
- fprintf(stderr,Name ": spare-disks set twice: %d and %s\n",
- sparedisks, optarg);
- exit(2);
- }
- if (level > -10 && level < 1) {
- fprintf(stderr, Name ": spare-disks setting is incompatible with raid level %d\n",
- level);
- exit(2);
- }
- sparedisks = strtol(optarg, &c, 10);
- if (!optarg[0] || *c || sparedisks < 0 || sparedisks > MD_SB_DISKS - raiddisks) {
- fprintf(stderr, Name ": invalid number of spare disks: %s\n",
- optarg);
- exit(2);
- }
- continue;
- case O('C','f'): /* force honouring of device list */
- force=1;
- continue;
-
- /* now for the Assemble options */
- case O('A','f'): /* force assembly */
- force = 1;
- continue;
- case O('A','u'): /* uuid of array */
- if (ident.uuid_set) {
- fprintf(stderr, Name ": uuid cannot be set twice. "
- "Second value %s.\n", optarg);
- exit(2);
- }
- if (parse_uuid(optarg, ident.uuid))
- ident.uuid_set = 1;
- else {
- fprintf(stderr,Name ": Bad uuid: %s\n", optarg);
- exit(2);
- }
- continue;
-
- case O('A','m'): /* super-minor for array */
- if (ident.super_minor >= 0) {
- fprintf(stderr, Name ": super-minor cannot be set twice. "
- "Second value: %s.\n", optarg);
- exit(2);
- }
- ident.super_minor = strtoul(optarg, &cp, 10);
- if (!optarg[0] || *cp) {
- fprintf(stderr, Name ": Bad super-minor number: %s.\n", optarg);
- exit(2);
- }
- continue;
-
- case O('A','c'): /* config file */
- case O('F','c'):
- if (configfile) {
- fprintf(stderr, Name ": configfile cannot be set twice. "
- "Second value is %s.\n", optarg);
- exit(2);
- }
- configfile = optarg;
- /* FIXME possibly check that config file exists. Even parse it */
- continue;
- case O('A','s'): /* scan */
- case O('E','s'):
- scan = 1;
- continue;
-
- case O('F','m'): /* mail address */
- if (mailaddr)
- fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n",
- optarg);
- else
- mailaddr = optarg;
- continue;
-
- case O('F','p'): /* alert program */
- if (program)
- fprintf(stderr, Name ": only specify one alter program. %s ignored.\n",
- optarg);
- else
- program = optarg;
- continue;
-
- 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);
- 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 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.
- */
-
- 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);
- }
- mdfd = open_mddev(devlist->devname);
- if (mdfd < 0)
- exit(1);
- }
-
-
- rv = 0;
- switch(mode) {
- case '@':/* Management */
- /* 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 'A': /* Assemble */
- if (!scan)
- rv = Assemble(devlist->devname, mdfd, &ident, configfile,
- devlist->next,
- readonly, runstop, verbose, force);
- else if (devs_found>0)
- for (dv = devlist ; dv ; dv=dv->next) {
- mddev_ident_t array_ident = conf_get_ident(configfile, dv->devname);
- mdfd = open_mddev(dv->devname);
- if (mdfd < 0) {
- rv |= 1;
- continue;
- }
- if (array_ident == NULL) {
- fprintf(stderr, Name ": %s not identified in config file.\n",
- dv->devname);
- rv |= 1;
- continue;
- }
- rv |= Assemble(dv->devname, mdfd, array_ident, configfile,
- NULL,
- readonly, runstop, 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) {
- mdu_array_info_t array;
- mdfd = open_mddev(array_list->devname);
- 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, verbose, force);
- }
- }
- break;
- case 'B': /* Build */
- rv = Build(devlist->devname, mdfd, chunk, level, raiddisks, devlist->next);
- break;
- case 'C': /* Create */
- rv = Create(devlist->devname, mdfd, chunk, level, layout, size,
- raiddisks, sparedisks,
- devs_found-1, devlist->next, runstop, verbose, force);
- break;
- case 'D': /* Detail */
- for (dv=devlist ; dv; dv=dv->next)
- rv |= Detail(dv->devname, brief);
- break;
- case 'E': /* Examine */
- if (devlist == NULL && scan==0) {
- fprintf(stderr, Name ": No devices to examine\n");
- exit(2);
- }
- rv = Examine(devlist, devlist?brief:!verbose, configfile);
- break;
- case 'F': /* Follow */
- rv= Monitor(devlist, mailaddr, program,
- delay?delay:60, configfile);
- }
- exit(rv);
-}
projects / thirdparty / mdadm.git / blobdiff