153 lines
4.2 KiB
C
153 lines
4.2 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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#define __USE_LARGEFILE64
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#include <unistd.h>
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extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence));
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <time.h>
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#include <getopt.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <linux/kdev_t.h>
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#include <linux/fs.h>
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#include <sys/ioctl.h>
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#define MD_MAJOR 9
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#include "md_u.h"
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#define Name "mdadm"
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extern char short_options[];
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extern struct option long_options[];
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extern char Version[], Usage[], Help[], Help_create[], Help_build[], Help_assemble[];
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/* structures read from config file */
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/* List of mddevice names and identifiers
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* Identifiers can be:
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* uuid=128-hex-uuid
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* super-minor=decimal-minor-number-from-superblock
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* devices=comma,separated,list,of,device,names,with,wildcards
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*
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* If multiple fields are present, the intersection of all matching
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* devices is considered
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*/
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typedef struct mddev_ident_s {
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char *devname;
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int uuid_set;
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__u32 uuid[4];
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int super_minor; /* -1 if not set */
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char *devices; /* comma separated list of device
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* names with wild cards
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*/
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int level; /* -10 if not set */
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int raid_disks; /* -1 if not set */
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char *spare_group;
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struct mddev_ident_s *next;
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} *mddev_ident_t;
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/* List of device names - wildcards expanded */
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typedef struct mddev_dev_s {
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char *devname;
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char disposition; /* 'a' for add, 'r' for remove, 'f' for fail.
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* Not set for names read from .config
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*/
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struct mddev_dev_s *next;
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} *mddev_dev_t;
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typedef struct mapping {
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char *name;
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int num;
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} mapping_t;
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#ifndef Sendmail
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#define Sendmail "/usr/lib/sendmail -t"
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#endif
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extern char *map_num(mapping_t *map, int num);
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extern int map_name(mapping_t *map, char *name);
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extern mapping_t r5layout[], pers[];
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extern char *map_dev(int major, int minor);
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extern int Manage_ro(char *devname, int fd, int readonly);
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extern int Manage_runstop(char *devname, int fd, int runstop);
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extern int Manage_subdevs(char *devname, int fd,
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mddev_dev_t devlist);
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extern int Assemble(char *mddev, int mdfd,
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mddev_ident_t ident,
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char *conffile,
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mddev_dev_t devlist,
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int readonly, int runstop,
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int verbose, int force);
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extern int Build(char *mddev, int mdfd, int chunk, int level,
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int raiddisks,
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mddev_dev_t devlist);
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extern int Create(char *mddev, int mdfd,
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int chunk, int level, int layout, int size, int raiddisks, int sparedisks,
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int subdevs, mddev_dev_t devlist,
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int runstop, int verbose, int force);
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extern int Detail(char *dev, int brief);
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extern int Examine(mddev_dev_t devlist, int brief, char *conffile);
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extern int Monitor(mddev_dev_t devlist,
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char *mailaddr, char *alert_cmd,
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int period,
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char *config);
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extern int Kill(char *dev, int force);
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extern int md_get_version(int fd);
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extern int get_linux_version();
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extern int parse_uuid(char *str, int uuid[4]);
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extern int check_ext2(int fd, char *name);
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extern int check_reiser(int fd, char *name);
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extern int check_raid(int fd, char *name);
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extern mddev_ident_t conf_get_ident(char *, char*);
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extern mddev_dev_t conf_get_devs(char *);
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extern char *human_size(long kbytes);
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