[thirdparty/mdadm.git] / mdadm.c

/*
 * mdadm - 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 "mdadm.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[])
{
	int mode = 0;
	int opt;
	int option_index;
	char *help_text;
	char *c;
	int rv;

	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;
	int SparcAdjust = 0;
	mddev_dev_t devlist = NULL;
	mddev_dev_t *devlistend = & devlist;
	mddev_dev_t dv;
	int devs_found = 0;
	int verbose = 0;
	int 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 ((option_index = -1) ,
	       (opt=getopt_long(argc, argv,
				short_options, long_options,
				&option_index)) != -1) {
		int newmode = mode;
		/* firstly, so mode-independant options */
		switch(opt) {
		case 'h':
			help_text = Help;
			switch (mode) {
			case ASSEMBLE : help_text = Help_assemble; break;
			case BUILD    : help_text = Help_build; break;
			case CREATE   : help_text = Help_create; break;
			case MANAGE   : help_text = Help_manage; break;
			case MISC     : help_text = Help_misc; break;
			case MONITOR  : help_text = Help_monitor; break;
			}
			fputs(help_text,stderr);
			exit(0);

		case 'V':
			fputs(Version, stderr);
			exit(0);

		case 'v': verbose = 1;
			continue;

		case 'b': brief = 1;
			continue;

		case ':':
		case '?':
			fputs(Usage, stderr);
			exit(2);
		}
		/* second, figure out the mode.
		 * Some options force the mode.  Others
		 * set the mode if it isn't already 
		 */

		switch(opt) {
		case '@': /* just incase they say --manage */
			newmode = MANAGE; break;
		case 'a':
		case 'r':
		case 'f':
		case 1 : if (!mode) newmode = MANAGE; break;

		case 'A': newmode = ASSEMBLE; break;
		case 'B': newmode = BUILD; break;
		case 'C': newmode = CREATE; break;
		case 'F': newmode = MONITOR;break;

		case '#':
		case 'D':
		case 'E':
		case 'Q': newmode = MISC; break;
		case 'R':
		case 'S':
		case 'o':
		case 'w':
		case 'K': if (!mode) newmode = MISC; break;
		}
		if (mode && newmode == mode) {
			/* everybody happy ! */
		} else if (mode && newmode != mode) {
			/* not allowed.. */
			fprintf(stderr, Name ": ");
			if (option_index >= 0)
				fprintf(stderr, "--%s", long_options[option_index].name);
			else
				fprintf(stderr, "-%c", opt);
			fprintf(stderr, " would set mode to %s, but it is already %s.\n",
				map_num(modes, newmode),
				map_num(modes, mode));
			exit(2);
		} else if (!mode && newmode) {
			mode = newmode;
		} else {
			/* special case of -c --help */
			if (opt == 'c' && 
			    ( strncmp(optarg, "--h", 3)==0 ||
			      strncmp(optarg, "-h", 2)==0)) {
				fputs(Help_config, stderr);
				exit(0);
			}
			if (option_index >= 0)
				fprintf(stderr, "--%s", long_options[option_index].name);
			else
				fprintf(stderr, "-%c", opt);
			fprintf(stderr, " does not set the mode, and so cannot be first.\n");
			exit(2);
		}

		/* if we just set the mode, then done */
		switch(opt) {
		case '@':
		case '#':
		case 'A':
		case 'B':
		case 'C':
		case 'F':
			continue;
		}
		if (opt == 1) {
		        /* an undecorated option - must be a device name.
			 */
			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;
		}

		/* 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(CREATE,'c'):
		case O(BUILD,'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(CREATE,'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(CREATE,'l'):
		case O(BUILD,'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 && level != -1 && mode == BUILD) {
				fprintf(stderr, Name ": Raid level %s not permitted with --build.\n",
					optarg);
				exit(2);
			}
			if (sparedisks > 0 && level < 1 && level >= -1) {
				fprintf(stderr, Name ": raid level %s is incompatible with spare-devices setting.\n",
					optarg);
				exit(2);
			}
			ident.level = level;
			continue;

		case O(CREATE,'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 not 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(CREATE,'n'):
		case O(BUILD,'n'): /* number of raid disks */
			if (raiddisks) {
				fprintf(stderr, Name ": raid-devices 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 devices: %s\n",
					optarg);
				exit(2);
			}
			ident.raid_disks = raiddisks;
			continue;

		case O(CREATE,'x'): /* number of spare (eXtra) discs */
			if (sparedisks) {
				fprintf(stderr,Name ": spare-devices set twice: %d and %s\n",
					sparedisks, optarg);
				exit(2);
			}
			if (level > -10 && level <= 0 && level >= -1) {
				fprintf(stderr, Name ": spare-devices 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-devices: %s\n",
					optarg);
				exit(2);
			}
			continue;
		case O(CREATE,'f'): /* force honouring of device list */
		case O(ASSEMBLE,'f'): /* force assembly */
		case O(MISC,'f'): /* force zero */
			force=1;
			continue;

			/* now for the Assemble options */
		case O(ASSEMBLE,'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(ASSEMBLE,'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(ASSEMBLE,'c'): /* config file */
		case O(MISC, 'c'):
		case O(MONITOR,'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(ASSEMBLE,'s'): /* scan */
		case O(MISC,'s'):
		case O(MONITOR,'s'):
			scan = 1;
			continue;

		case O(MONITOR,'m'): /* mail address */
			if (mailaddr)
				fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n",
					optarg);
			else
				mailaddr = optarg;
			continue;

		case O(MONITOR,'p'): /* alert program */
			if (program)
				fprintf(stderr, Name ": only specify one alter program. %s ignored.\n",
					optarg);
			else
				program = optarg;
			continue;

		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;
			

			/* now the general management options.  Some are applicable
			 * to other modes. None have arguments.
			 */
		case O(MANAGE,'a'):
		case O(CREATE,'a'):
		case O(BUILD,'a'):
		case O(ASSEMBLE,'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, 22):
			if (devmode != 'E') {
				fprintf(stderr, Name ": --sparc2.2 only allowed with --examine\n");
				exit(2);
			}
			SparcAdjust = 1;
			continue;
		case O(MISC,23):
			if (devmode != 'E') {
				fprintf(stderr, Name ": --sparc2.2update only allowed with --examine\n");
				exit(2);
			}
			SparcAdjust = 2;
			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 == ASSEMBLE && ! 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 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 (!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 BUILD:
		rv = Build(devlist->devname, mdfd, chunk, level, raiddisks, devlist->next);
		break;
	case CREATE:
		rv = Create(devlist->devname, mdfd, chunk, level, layout, 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();
					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);
						else if (devmode=='S') {
							mdfd = open_mddev(name);
							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); continue;
				case 'K': /* Zero superblock */
					rv |= Kill(dv->devname, force); continue;
				case 'Q':
					rv |= Query(dv->devname); continue;
				}
				mdfd = open_mddev(dv->devname);
				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;
		}
*/		rv= Monitor(devlist, mailaddr, program,
			    delay?delay:60, scan, configfile);
		break;
	}
	exit(rv);
}
Commit	Line	Data
64c4757e	1	/*
9a9dab36	2	* mdadm - manage Linux "md" devices aka RAID arrays.
64c4757e	3	*
cd29a5c8	4	* Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
64c4757e NB	5	*
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*
	21	* Author: Neil Brown
	22	* Email: <neilb@cse.unsw.edu.au>
	23	* Paper: Neil Brown
	24	* School of Computer Science and Engineering
	25	* The University of New South Wales
	26	* Sydney, 2052
	27	* Australia
	28	*/
	29
9a9dab36	30	#include "mdadm.h"
64c4757e NB	31	#include "md_p.h"
64c4757e NB	32
52826846	33	int open_mddev(char *dev)
64c4757e	34	{
52826846 NB	35	int mdfd = open(dev, O_RDWR, 0);
52826846 NB	36	if (mdfd < 0)
e0d19036	37	fprintf(stderr, Name ": error opening %s: %s\n",
52826846 NB	38	dev, strerror(errno));
	39	else if (md_get_version(mdfd) <= 0) {
	40	fprintf(stderr, Name ": %s does not appear to be an md device\n",
	41	dev);
	42	close(mdfd);
	43	mdfd = -1;
64c4757e	44	}
52826846 NB	45	return mdfd;
52826846 NB	46	}
64c4757e	47
64c4757e	48
52826846 NB	49
	50	int main(int argc, char *argv[])
	51	{
e0d19036	52	int mode = 0;
52826846	53	int opt;
e0d19036	54	int option_index;
52826846 NB	55	char *help_text;
	56	char *c;
	57	int rv;
52826846 NB	58
	59	int chunk = 0;
	60	int size = 0;
	61	int level = -10;
	62	int layout = -1;
	63	int raiddisks = 0;
	64	int sparedisks = 0;
	65	struct mddev_ident_s ident;
	66	char *configfile = NULL;
cd29a5c8	67	char *cp;
52826846 NB	68	int scan = 0;
	69	char devmode = 0;
	70	int runstop = 0;
	71	int readonly = 0;
bd526cee	72	int SparcAdjust = 0;
cd29a5c8 NB	73	mddev_dev_t devlist = NULL;
	74	mddev_dev_t *devlistend = & devlist;
	75	mddev_dev_t dv;
52826846 NB	76	int devs_found = 0;
52826846 NB	77	int verbose = 0;
cd29a5c8	78	int brief = 0;
52826846 NB	79	int force = 0;
	80
	81	char *mailaddr = NULL;
	82	char *program = NULL;
	83	int delay = 0;
	84
	85	int mdfd = -1;
	86
	87	ident.uuid_set=0;
cd29a5c8 NB	88	ident.level = -10;
cd29a5c8 NB	89	ident.raid_disks = -1;
52826846 NB	90	ident.super_minor= -1;
	91	ident.devices=0;
	92
e0d19036 NB	93	while ((option_index = -1) ,
e0d19036 NB	94	(opt=getopt_long(argc, argv,
52826846	95	short_options, long_options,
e0d19036 NB	96	&option_index)) != -1) {
	97	int newmode = mode;
	98	/* firstly, so mode-independant options */
52826846	99	switch(opt) {
52826846 NB	100	case 'h':
	101	help_text = Help;
	102	switch (mode) {
e0d19036 NB	103	case ASSEMBLE : help_text = Help_assemble; break;
	104	case BUILD : help_text = Help_build; break;
	105	case CREATE : help_text = Help_create; break;
	106	case MANAGE : help_text = Help_manage; break;
	107	case MISC : help_text = Help_misc; break;
	108	case MONITOR : help_text = Help_monitor; break;
52826846 NB	109	}
	110	fputs(help_text,stderr);
	111	exit(0);
	112
	113	case 'V':
	114	fputs(Version, stderr);
	115	exit(0);
	116
	117	case 'v': verbose = 1;
	118	continue;
	119
cd29a5c8 NB	120	case 'b': brief = 1;
	121	continue;
	122
e0d19036 NB	123	case ':':
	124	case '?':
	125	fputs(Usage, stderr);
	126	exit(2);
	127	}
	128	/* second, figure out the mode.
	129	* Some options force the mode. Others
	130	* set the mode if it isn't already
	131	*/
	132
	133	switch(opt) {
	134	case '@': /* just incase they say --manage */
	135	newmode = MANAGE; break;
	136	case 'a':
	137	case 'r':
	138	case 'f':
	139	case 1 : if (!mode) newmode = MANAGE; break;
	140
	141	case 'A': newmode = ASSEMBLE; break;
	142	case 'B': newmode = BUILD; break;
	143	case 'C': newmode = CREATE; break;
	144	case 'F': newmode = MONITOR;break;
	145
	146	case '#':
	147	case 'D':
	148	case 'E':
	149	case 'Q': newmode = MISC; break;
	150	case 'R':
	151	case 'S':
	152	case 'o':
	153	case 'w':
	154	case 'K': if (!mode) newmode = MISC; break;
	155	}
	156	if (mode && newmode == mode) {
	157	/* everybody happy ! */
	158	} else if (mode && newmode != mode) {
	159	/* not allowed.. */
	160	fprintf(stderr, Name ": ");
	161	if (option_index >= 0)
	162	fprintf(stderr, "--%s", long_options[option_index].name);
	163	else
	164	fprintf(stderr, "-%c", opt);
	165	fprintf(stderr, " would set mode to %s, but it is already %s.\n",
	166	map_num(modes, newmode),
	167	map_num(modes, mode));
	168	exit(2);
	169	} else if (!mode && newmode) {
	170	mode = newmode;
	171	} else {
	172	/* special case of -c --help */
	173	if (opt == 'c' &&
	174	( strncmp(optarg, "--h", 3)==0 \|\|
	175	strncmp(optarg, "-h", 2)==0)) {
	176	fputs(Help_config, stderr);
	177	exit(0);
cd29a5c8	178	}
e0d19036 NB	179	if (option_index >= 0)
	180	fprintf(stderr, "--%s", long_options[option_index].name);
	181	else
	182	fprintf(stderr, "-%c", opt);
	183	fprintf(stderr, " does not set the mode, and so cannot be first.\n");
	184	exit(2);
	185	}
	186
	187	/* if we just set the mode, then done */
	188	switch(opt) {
	189	case '@':
	190	case '#':
	191	case 'A':
	192	case 'B':
	193	case 'C':
	194	case 'F':
	195	continue;
	196	}
	197	if (opt == 1) {
	198	/* an undecorated option - must be a device name.
	199	*/
cd29a5c8 NB	200	if (devs_found > 0 && mode == '@' && !devmode) {
cd29a5c8 NB	201	fprintf(stderr, Name ": Must give on of -a/-r/-f for subsequent devices at %s\n", optarg);
52826846 NB	202	exit(2);
52826846 NB	203	}
cd29a5c8 NB	204	dv = malloc(sizeof(*dv));
	205	if (dv == NULL) {
	206	fprintf(stderr, Name ": malloc failed\n");
	207	exit(3);
	208	}
	209	dv->devname = optarg;
	210	dv->disposition = devmode;
	211	dv->next = NULL;
	212	*devlistend = dv;
	213	devlistend = &dv->next;
	214
52826846 NB	215	devs_found++;
52826846 NB	216	continue;
682c7051	217	}
682c7051	218
52826846 NB	219	/* We've got a mode, and opt is now something else which
	220	* could depend on the mode */
	221	#define O(a,b) ((a<<8)\|b)
	222	switch (O(mode,opt)) {
e0d19036 NB	223	case O(CREATE,'c'):
e0d19036 NB	224	case O(BUILD,'c'): /* chunk or rounding */
52826846 NB	225	if (chunk) {
	226	fprintf(stderr, Name ": chunk/rounding may only be specified once. "
	227	"Second value is %s.\n", optarg);
	228	exit(2);
	229	}
	230	chunk = strtol(optarg, &c, 10);
	231	if (!optarg[0] \|\| *c \|\| chunk<4 \|\| ((chunk-1)&chunk)) {
	232	fprintf(stderr, Name ": invalid chunk/rounding value: %s\n",
	233	optarg);
	234	exit(2);
	235	}
	236	continue;
64c4757e	237
e0d19036	238	case O(CREATE,'z'): /* size */
52826846 NB	239	if (size) {
	240	fprintf(stderr, Name ": size may only be specified once. "
	241	"Second value is %s.\n", optarg);
	242	exit(2);
	243	}
	244	size = strtol(optarg, &c, 10);
	245	if (!optarg[0] \|\| *c \|\| size < 4) {
	246	fprintf(stderr, Name ": invalid size: %s\n",
	247	optarg);
	248	exit(2);
	249	}
	250	continue;
64c4757e	251
e0d19036 NB	252	case O(CREATE,'l'):
e0d19036 NB	253	case O(BUILD,'l'): /* set raid level*/
52826846 NB	254	if (level != -10) {
	255	fprintf(stderr, Name ": raid level may only be set once. "
	256	"Second value is %s.\n", optarg);
	257	exit(2);
	258	}
	259	level = map_name(pers, optarg);
	260	if (level == -10) {
	261	fprintf(stderr, Name ": invalid raid level: %s\n",
	262	optarg);
	263	exit(2);
	264	}
e0d19036	265	if (level != 0 && level != -1 && mode == BUILD) {
52826846 NB	266	fprintf(stderr, Name ": Raid level %s not permitted with --build.\n",
	267	optarg);
	268	exit(2);
	269	}
e0d19036	270	if (sparedisks > 0 && level < 1 && level >= -1) {
b83d95f3	271	fprintf(stderr, Name ": raid level %s is incompatible with spare-devices setting.\n",
52826846 NB	272	optarg);
	273	exit(2);
	274	}
cd29a5c8	275	ident.level = level;
52826846	276	continue;
64c4757e	277
e0d19036	278	case O(CREATE,'p'): /* raid5 layout */
52826846 NB	279	if (layout >= 0) {
	280	fprintf(stderr,Name ": layout may only be sent once. "
	281	"Second value was %s\n", optarg);
	282	exit(2);
	283	}
	284	switch(level) {
	285	default:
56eb10c0	286	fprintf(stderr, Name ": layout not meaningful for %s arrays.\n",
52826846 NB	287	map_num(pers, level));
	288	exit(2);
	289	case -10:
	290	fprintf(stderr, Name ": raid level must be given before layout.\n");
	291	exit(2);
	292
	293	case 5:
	294	layout = map_name(r5layout, optarg);
	295	if (layout==-10) {
	296	fprintf(stderr, Name ": layout %s not understood for raid5.\n",
	297	optarg);
	298	exit(2);
	299	}
	300	break;
	301	}
	302	continue;
	303
e0d19036 NB	304	case O(CREATE,'n'):
e0d19036 NB	305	case O(BUILD,'n'): /* number of raid disks */
52826846	306	if (raiddisks) {
b83d95f3	307	fprintf(stderr, Name ": raid-devices set twice: %d and %s\n",
52826846 NB	308	raiddisks, optarg);
	309	exit(2);
	310	}
	311	raiddisks = strtol(optarg, &c, 10);
	312	if (!optarg[0] \|\| *c \|\| raiddisks<=0 \|\| raiddisks > MD_SB_DISKS) {
b83d95f3	313	fprintf(stderr, Name ": invalid number of raid devices: %s\n",
52826846 NB	314	optarg);
	315	exit(2);
	316	}
cd29a5c8	317	ident.raid_disks = raiddisks;
52826846 NB	318	continue;
52826846 NB	319
e0d19036	320	case O(CREATE,'x'): /* number of spare (eXtra) discs */
52826846	321	if (sparedisks) {
b83d95f3	322	fprintf(stderr,Name ": spare-devices set twice: %d and %s\n",
52826846 NB	323	sparedisks, optarg);
	324	exit(2);
	325	}
e0d19036	326	if (level > -10 && level <= 0 && level >= -1) {
b83d95f3	327	fprintf(stderr, Name ": spare-devices setting is incompatible with raid level %d\n",
52826846 NB	328	level);
	329	exit(2);
	330	}
	331	sparedisks = strtol(optarg, &c, 10);
	332	if (!optarg[0] \|\| *c \|\| sparedisks < 0 \|\| sparedisks > MD_SB_DISKS - raiddisks) {
b83d95f3	333	fprintf(stderr, Name ": invalid number of spare-devices: %s\n",
52826846 NB	334	optarg);
	335	exit(2);
	336	}
	337	continue;
e0d19036 NB	338	case O(CREATE,'f'): /* force honouring of device list */
	339	case O(ASSEMBLE,'f'): /* force assembly */
	340	case O(MISC,'f'): /* force zero */
52826846 NB	341	force=1;
	342	continue;
	343
	344	/* now for the Assemble options */
e0d19036	345	case O(ASSEMBLE,'u'): /* uuid of array */
52826846	346	if (ident.uuid_set) {
cd29a5c8	347	fprintf(stderr, Name ": uuid cannot be set twice. "
52826846 NB	348	"Second value %s.\n", optarg);
	349	exit(2);
	350	}
	351	if (parse_uuid(optarg, ident.uuid))
	352	ident.uuid_set = 1;
	353	else {
	354	fprintf(stderr,Name ": Bad uuid: %s\n", optarg);
	355	exit(2);
	356	}
	357	continue;
	358
e0d19036	359	case O(ASSEMBLE,'m'): /* super-minor for array */
cd29a5c8 NB	360	if (ident.super_minor >= 0) {
	361	fprintf(stderr, Name ": super-minor cannot be set twice. "
	362	"Second value: %s.\n", optarg);
	363	exit(2);
	364	}
	365	ident.super_minor = strtoul(optarg, &cp, 10);
	366	if (!optarg[0] \|\| *cp) {
	367	fprintf(stderr, Name ": Bad super-minor number: %s.\n", optarg);
	368	exit(2);
	369	}
	370	continue;
	371
e0d19036	372	case O(ASSEMBLE,'c'): /* config file */
2d465520	373	case O(MISC, 'c'):
e0d19036	374	case O(MONITOR,'c'):
52826846 NB	375	if (configfile) {
	376	fprintf(stderr, Name ": configfile cannot be set twice. "
	377	"Second value is %s.\n", optarg);
	378	exit(2);
	379	}
	380	configfile = optarg;
	381	/* FIXME possibly check that config file exists. Even parse it */
	382	continue;
e0d19036 NB	383	case O(ASSEMBLE,'s'): /* scan */
	384	case O(MISC,'s'):
	385	case O(MONITOR,'s'):
52826846 NB	386	scan = 1;
	387	continue;
	388
e0d19036	389	case O(MONITOR,'m'): /* mail address */
52826846 NB	390	if (mailaddr)
	391	fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n",
	392	optarg);
	393	else
	394	mailaddr = optarg;
	395	continue;
	396
e0d19036	397	case O(MONITOR,'p'): /* alert program */
52826846 NB	398	if (program)
	399	fprintf(stderr, Name ": only specify one alter program. %s ignored.\n",
	400	optarg);
	401	else
	402	program = optarg;
	403	continue;
64c4757e	404
e0d19036	405	case O(MONITOR,'d'): /* delay in seconds */
52826846 NB	406	if (delay)
	407	fprintf(stderr, Name ": only specify delay once. %s ignored.\n",
	408	optarg);
	409	else {
	410	delay = strtol(optarg, &c, 10);
	411	if (!optarg[0] \|\| *c \|\| delay<1) {
	412	fprintf(stderr, Name ": invalid delay: %s\n",
	413	optarg);
	414	exit(2);
	415	}
	416	}
	417	continue;
	418
	419
	420	/* now the general management options. Some are applicable
	421	* to other modes. None have arguments.
	422	*/
e0d19036 NB	423	case O(MANAGE,'a'):
	424	case O(CREATE,'a'):
	425	case O(BUILD,'a'):
	426	case O(ASSEMBLE,'a'): /* add a drive */
52826846 NB	427	devmode = 'a';
52826846 NB	428	continue;
e0d19036	429	case O(MANAGE,'r'): /* remove a drive */
52826846 NB	430	devmode = 'r';
52826846 NB	431	continue;
e0d19036	432	case O(MANAGE,'f'): /* set faulty */
52826846 NB	433	devmode = 'f';
52826846 NB	434	continue;
e0d19036 NB	435	case O(MANAGE,'R'):
	436	case O(ASSEMBLE,'R'):
	437	case O(BUILD,'R'):
	438	case O(CREATE,'R'): /* Run the array */
52826846 NB	439	if (runstop < 0) {
	440	fprintf(stderr, Name ": Cannot both Stop and Run an array\n");
	441	exit(2);
	442	}
	443	runstop = 1;
	444	continue;
e0d19036	445	case O(MANAGE,'S'):
52826846 NB	446	if (runstop > 0) {
	447	fprintf(stderr, Name ": Cannot both Run and Stop an array\n");
	448	exit(2);
	449	}
	450	runstop = -1;
	451	continue;
	452
e0d19036	453	case O(MANAGE,'o'):
52826846 NB	454	if (readonly < 0) {
	455	fprintf(stderr, Name ": Cannot have both readonly and readwrite\n");
	456	exit(2);
	457	}
	458	readonly = 1;
	459	continue;
e0d19036	460	case O(MANAGE,'w'):
52826846	461	if (readonly > 0) {
e0d19036	462	fprintf(stderr, Name ": Cannot have both readwrite and readonly.\n");
52826846 NB	463	exit(2);
	464	}
	465	readonly = -1;
	466	continue;
e0d19036 NB	467
	468	case O(MISC,'Q'):
	469	case O(MISC,'D'):
	470	case O(MISC,'E'):
	471	case O(MISC,'K'):
	472	case O(MISC,'R'):
	473	case O(MISC,'S'):
	474	case O(MISC,'o'):
	475	case O(MISC,'w'):
	476	if (devmode && devmode != opt &&
	477	(devmode == 'E' \|\| (opt == 'E' && devmode != 'Q'))) {
	478	fprintf(stderr, Name ": --examine/-E cannot be given with -%c\n",
	479	devmode =='E'?opt:devmode);
	480	exit(2);
	481	}
	482	devmode = opt;
	483	continue;
	484
bd526cee NB	485	case O(MISC, 22):
	486	if (devmode != 'E') {
	487	fprintf(stderr, Name ": --sparc2.2 only allowed with --examine\n");
	488	exit(2);
	489	}
	490	SparcAdjust = 1;
	491	continue;
	492	case O(MISC,23):
	493	if (devmode != 'E') {
	494	fprintf(stderr, Name ": --sparc2.2update only allowed with --examine\n");
	495	exit(2);
	496	}
	497	SparcAdjust = 2;
	498	continue;
52826846 NB	499	}
	500	/* We have now processed all the valid options. Anything else is
	501	* an error
	502	*/
e0d19036 NB	503	fprintf(stderr, Name ": option %c not valid in %s mode\n",
e0d19036 NB	504	opt, map_num(modes, mode));
64c4757e	505	exit(2);
52826846 NB	506
	507	}
	508
	509	if (!mode) {
	510	fputs(Usage, stderr);
64c4757e	511	exit(2);
64c4757e	512	}
52826846 NB	513	/* Ok, got the option parsing out of the way
	514	* hopefully it's mostly right but there might be some stuff
	515	* missing
	516	*
e0d19036	517	* That is mosty checked in the per-mode stuff but...
52826846 NB	518	*
	519	* For @,B,C and A without -s, the first device listed must be an md device
	520	* we check that here and open it.
64c4757e	521	*/
52826846	522
e0d19036	523	if (mode==MANAGE \|\| mode == BUILD \|\| mode == CREATE \|\| (mode == ASSEMBLE && ! scan)) {
52826846 NB	524	if (devs_found < 1) {
	525	fprintf(stderr, Name ": an md device must be given in this mode\n");
	526	exit(2);
	527	}
cd29a5c8	528	mdfd = open_mddev(devlist->devname);
52826846 NB	529	if (mdfd < 0)
52826846 NB	530	exit(1);
64c4757e	531	}
52826846	532
52826846 NB	533	rv = 0;
52826846 NB	534	switch(mode) {
e0d19036	535	case MANAGE:
52826846 NB	536	/* readonly, add/remove, readwrite, runstop */
52826846 NB	537	if (readonly>0)
cd29a5c8	538	rv = Manage_ro(devlist->devname, mdfd, readonly);
52826846	539	if (!rv && devs_found>1)
cd29a5c8 NB	540	rv = Manage_subdevs(devlist->devname, mdfd,
cd29a5c8 NB	541	devlist->next);
52826846	542	if (!rv && readonly < 0)
cd29a5c8	543	rv = Manage_ro(devlist->devname, mdfd, readonly);
52826846	544	if (!rv && runstop)
cd29a5c8	545	rv = Manage_runstop(devlist->devname, mdfd, runstop);
52826846	546	break;
e0d19036	547	case ASSEMBLE:
52826846	548	if (!scan)
cd29a5c8 NB	549	rv = Assemble(devlist->devname, mdfd, &ident, configfile,
cd29a5c8 NB	550	devlist->next,
52826846 NB	551	readonly, runstop, verbose, force);
52826846 NB	552	else if (devs_found>0)
cd29a5c8 NB	553	for (dv = devlist ; dv ; dv=dv->next) {
	554	mddev_ident_t array_ident = conf_get_ident(configfile, dv->devname);
	555	mdfd = open_mddev(dv->devname);
52826846 NB	556	if (mdfd < 0) {
	557	rv \|= 1;
	558	continue;
	559	}
	560	if (array_ident == NULL) {
	561	fprintf(stderr, Name ": %s not identified in config file.\n",
cd29a5c8	562	dv->devname);
52826846 NB	563	rv \|= 1;
	564	continue;
	565	}
cd29a5c8 NB	566	rv \|= Assemble(dv->devname, mdfd, array_ident, configfile,
cd29a5c8 NB	567	NULL,
52826846 NB	568	readonly, runstop, verbose, force);
	569	}
	570	else {
	571	mddev_ident_t array_list = conf_get_ident(configfile, NULL);
	572	if (!array_list) {
	573	fprintf(stderr, Name ": No arrays found in config file\n");
	574	rv = 1;
	575	} else
	576	for (; array_list; array_list = array_list->next) {
cd29a5c8	577	mdu_array_info_t array;
52826846 NB	578	mdfd = open_mddev(array_list->devname);
	579	if (mdfd < 0) {
	580	rv \|= 1;
	581	continue;
	582	}
cd29a5c8 NB	583	if (ioctl(mdfd, GET_ARRAY_INFO, &array)>=0)
	584	/* already assembled, skip */
	585	continue;
52826846 NB	586	rv \|= Assemble(array_list->devname, mdfd,
52826846 NB	587	array_list, configfile,
cd29a5c8	588	NULL,
52826846 NB	589	readonly, runstop, verbose, force);
	590	}
	591	}
	592	break;
e0d19036	593	case BUILD:
cd29a5c8	594	rv = Build(devlist->devname, mdfd, chunk, level, raiddisks, devlist->next);
52826846	595	break;
e0d19036	596	case CREATE:
cd29a5c8	597	rv = Create(devlist->devname, mdfd, chunk, level, layout, size,
52826846	598	raiddisks, sparedisks,
cd29a5c8	599	devs_found-1, devlist->next, runstop, verbose, force);
52826846	600	break;
e0d19036 NB	601	case MISC:
	602
	603	if (devmode == 'E') {
	604	if (devlist == NULL && !scan) {
	605	fprintf(stderr, Name ": No devices to examine\n");
	606	exit(2);
	607	}
	608	if (devlist == NULL)
	609	devlist = conf_get_devs(configfile);
	610	if (devlist == NULL) {
c913b90e	611	fprintf(stderr, Name ": No devices listed in %s\n", configfile?configfile:DefaultConfFile);
e0d19036 NB	612	exit(1);
e0d19036 NB	613	}
bd526cee	614	rv = Examine(devlist, scan?!verbose:brief, scan, SparcAdjust);
e0d19036 NB	615	} else {
	616	if (devlist == NULL) {
	617	if ((devmode == 'S' \|\|devmode=='D') && scan) {
	618	/* apply to all devices in /proc/mdstat */
	619	struct mdstat_ent *ms = mdstat_read();
	620	struct mdstat_ent *e;
	621	for (e=ms ; e ; e=e->next) {
	622	char *name = get_md_name(e->devnum);
	623
	624	if (!name) {
	625	fprintf(stderr, Name ": cannot find device file for %s\n",
	626	e->dev);
	627	continue;
	628	}
	629	if (devmode == 'D')
	630	rv \|= Detail(name, !verbose);
	631	else if (devmode=='S') {
	632	mdfd = open_mddev(name);
	633	if (mdfd >= 0)
	634	rv \|= Manage_runstop(name, mdfd, -1);
	635	}
	636	put_md_name(name);
	637	}
	638	} else {
	639	fprintf(stderr, Name ": No devices given.\n");
	640	exit(2);
	641	}
	642	}
	643	for (dv=devlist ; dv; dv=dv->next) {
	644	switch(dv->disposition) {
	645	case 'D':
	646	rv \|= Detail(dv->devname, brief); continue;
	647	case 'K': /* Zero superblock */
	648	rv \|= Kill(dv->devname, force); continue;
	649	case 'Q':
	650	rv \|= Query(dv->devname); continue;
	651	}
	652	mdfd = open_mddev(dv->devname);
	653	if (mdfd>=0)
	654	switch(dv->disposition) {
	655	case 'R':
	656	rv \|= Manage_runstop(dv->devname, mdfd, 1); break;
	657	case 'S':
	658	rv \|= Manage_runstop(dv->devname, mdfd, -1); break;
	659	case 'o':
	660	rv \|= Manage_ro(dv->devname, mdfd, 1); break;
	661	case 'w':
	662	rv \|= Manage_ro(dv->devname, mdfd, -1); break;
	663	}
	664	}
cd29a5c8	665	}
9a9dab36	666	break;
e0d19036 NB	667	case MONITOR:
	668	/*
	669	if (!devlist && !scan) {
	670	fprintf(stderr, Name ": Cannot monitor: need --scan or at least one device\n");
	671	rv = 1;
	672	break;
	673	}
	674	*/ rv= Monitor(devlist, mailaddr, program,
	675	delay?delay:60, scan, configfile);
9a9dab36	676	break;
64c4757e	677	}
52826846	678	exit(rv);
64c4757e	679	}