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/*
* 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
*/
#define __USE_LARGEFILE64
#include <unistd.h>
extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence));
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <time.h>
#include <getopt.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <linux/kdev_t.h>
/*#include <linux/fs.h> */
#include <sys/mount.h>
#include <asm/types.h>
#include <sys/ioctl.h>
#define MD_MAJOR 9
#ifndef BLKGETSIZE64
#define BLKGETSIZE64 _IOR(0x12,114,sizeof(__u64)) /* return device size in bytes (u64 *arg) */
#endif
#include "md_u.h"
#include "md_p.h"
#define Name "mdadm"
enum mode {
ASSEMBLE=1,
BUILD,
CREATE,
MANAGE,
MISC,
MONITOR,
};
extern char short_options[];
extern struct option long_options[];
extern char Version[], Usage[], Help[],
Help_create[], Help_build[], Help_assemble[],
Help_manage[], Help_misc[], Help_monitor[], Help_config[];
/* structures read from config file */
/* List of mddevice names and identifiers
* Identifiers can be:
* uuid=128-hex-uuid
* super-minor=decimal-minor-number-from-superblock
* devices=comma,separated,list,of,device,names,with,wildcards
*
* If multiple fields are present, the intersection of all matching
* devices is considered
*/
typedef struct mddev_ident_s {
char *devname;
int uuid_set;
__u32 uuid[4];
int super_minor; /* -1 if not set */
char *devices; /* comma separated list of device
* names with wild cards
*/
int level; /* -10 if not set */
int raid_disks; /* -1 if not set */
char *spare_group;
struct mddev_ident_s *next;
} *mddev_ident_t;
/* List of device names - wildcards expanded */
typedef struct mddev_dev_s {
char *devname;
char disposition; /* 'a' for add, 'r' for remove, 'f' for fail.
* Not set for names read from .config
*/
struct mddev_dev_s *next;
} *mddev_dev_t;
typedef struct mapping {
char *name;
int num;
} mapping_t;
struct mdstat_ent {
char *dev;
int devnum;
int active;
char *level;
char *pattern; /* U or up, _ for down */
int percent; /* -1 if no resync */
struct mdstat_ent *next;
};
extern struct mdstat_ent *mdstat_read(void);
extern void free_mdstat(struct mdstat_ent *ms);
#ifndef Sendmail
#define Sendmail "/usr/lib/sendmail -t"
#endif
extern char *map_num(mapping_t *map, int num);
extern int map_name(mapping_t *map, char *name);
extern mapping_t r5layout[], pers[], modes[];
extern char *map_dev(int major, int minor);
extern int Manage_ro(char *devname, int fd, int readonly);
extern int Manage_runstop(char *devname, int fd, int runstop);
extern int Manage_subdevs(char *devname, int fd,
mddev_dev_t devlist);
extern int Assemble(char *mddev, int mdfd,
mddev_ident_t ident,
char *conffile,
mddev_dev_t devlist,
int readonly, int runstop,
int verbose, int force);
extern int Build(char *mddev, int mdfd, int chunk, int level,
int raiddisks,
mddev_dev_t devlist);
extern int Create(char *mddev, int mdfd,
int chunk, int level, int layout, int size, int raiddisks, int sparedisks,
int subdevs, mddev_dev_t devlist,
int runstop, int verbose, int force);
extern int Detail(char *dev, int brief);
extern int Query(char *dev);
extern int Examine(mddev_dev_t devlist, int brief, int scan);
extern int Monitor(mddev_dev_t devlist,
char *mailaddr, char *alert_cmd,
int period, int scan,
char *config);
extern int Kill(char *dev, int force);
extern int md_get_version(int fd);
extern int get_linux_version(void);
extern int parse_uuid(char *str, int uuid[4]);
extern int check_ext2(int fd, char *name);
extern int check_reiser(int fd, char *name);
extern int check_raid(int fd, char *name);
extern mddev_ident_t conf_get_ident(char *conffile, char *dev);
extern mddev_dev_t conf_get_devs(char *conffile);
extern char *conf_get_mailaddr(char *conffile);
extern char *conf_get_program(char *conffile);
extern char *conf_line(FILE *file);
extern void free_line(char *line);
extern int match_oneof(char *devices, char *devname);
extern int load_super(int fd, mdp_super_t *super);
extern void uuid_from_super(int uuid[4], mdp_super_t *super);
extern int same_uuid(int a[4], int b[4]);
extern int compare_super(mdp_super_t *first, mdp_super_t *second);
extern int calc_sb_csum(mdp_super_t *super);
extern int store_super(int fd, mdp_super_t *super);
extern int enough(int level, int raid_disks, int avail_disks);
extern int ask(char *mesg);
extern char *human_size(long long bytes);
char *human_size_brief(long long bytes);
extern void put_md_name(char *name);
extern char *get_md_name(int dev);
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