[thirdparty/mdadm.git] / mdadm.h

/*
 * 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>
#ifndef __dietlibc__
extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence));
#endif

#include	<sys/types.h>
#include	<sys/stat.h>
#include	<stdlib.h>
#include	<time.h>
#include	<sys/time.h>
#include	<getopt.h>
#include	<fcntl.h>
#include	<stdio.h>
#include	<errno.h>
#include	<string.h>
#include	<syslog.h>
#ifdef __dietlibc__NONO
int strncmp(const char *s1, const char *s2, size_t n) __THROW __pure__;
char *strncpy(char *dest, const char *src, size_t n) __THROW;
#include    <strings.h>
#endif


#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
#define MdpMinorShift 6

#ifndef BLKGETSIZE64
#define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 *arg) */
#endif

#define DEFAULT_BITMAP_CHUNK 4096
#define DEFAULT_BITMAP_DELAY 5
#define DEFAULT_MAX_WRITE_BEHIND 256

#include	"md_u.h"
#include	"md_p.h"
#include	"bitmap.h"

/* general information that might be extracted from a superblock */
struct mdinfo {
	mdu_array_info_t	array;
	mdu_disk_info_t		disk;
	__u64			events;
	int			uuid[4];
};

#define Name "mdadm"

enum mode {
	ASSEMBLE=1,
	BUILD,
	CREATE,
	MANAGE,
	MISC,
	MONITOR,
	GROW,
};

extern char short_options[];
extern char short_bitmap_auto_options[];
extern struct option long_options[];
extern char Version[], Usage[], Help[], OptionHelp[],
	Help_create[], Help_build[], Help_assemble[], Help_grow[],
	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
 */
#define UnSet (0xfffe)
typedef struct mddev_ident_s {
	char	*devname;
	
	int	uuid_set;
	int	uuid[4];
	char	name[33];

	unsigned int super_minor;

	char	*devices;	/* comma separated list of device
				 * names with wild cards
				 */
	int	level;
	unsigned int raid_disks;
	unsigned int spare_disks;
	struct supertype *st;
	int	autof;		/* 1 for normal, 2 for partitioned */
	char	*spare_group;
	int	bitmap_fd;

	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
				 */
	char writemostly;
	char re_add;
	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 */
	int		resync; /* 1 if resync, 0 if recovery */
	struct mdstat_ent *next;
};

extern struct mdstat_ent *mdstat_read(int);
extern void free_mdstat(struct mdstat_ent *ms);
extern void mdstat_wait(int seconds);

#ifndef Sendmail
#define Sendmail "/usr/lib/sendmail -t"
#endif

#define SYSLOG_FACILITY LOG_DAEMON

extern char *map_num(mapping_t *map, int num);
extern int map_name(mapping_t *map, char *name);
extern mapping_t r5layout[], pers[], modes[], faultylayout[];

extern char *map_dev(int major, int minor);


extern struct superswitch {
	void (*examine_super)(void *sbv);
	void (*brief_examine_super)(void *sbv);
	void (*detail_super)(void *sbv);
	void (*brief_detail_super)(void *sbv);
	void (*uuid_from_super)(int uuid[4], void *sbv);
	void (*getinfo_super)(struct mdinfo *info, mddev_ident_t ident, void *sbv);
	int (*update_super)(struct mdinfo *info, void *sbv, char *update, char *devname, int verbose);
	__u64 (*event_super)(void *sbv);
	int (*init_super)(struct supertype *st, void **sbp, mdu_array_info_t *info, unsigned long long size, char *name);
	void (*add_to_super)(void *sbv, mdu_disk_info_t *dinfo);
	int (*store_super)(struct supertype *st, int fd, void *sbv);
	int (*write_init_super)(struct supertype *st, void *sbv, mdu_disk_info_t *dinfo, char *devname);
	int (*compare_super)(void **firstp, void *secondv);
	int (*load_super)(struct supertype *st, int fd, void **sbp, char *devname);
	struct supertype * (*match_metadata_desc)(char *arg);
	__u64 (*avail_size)(struct supertype *st, __u64 size);
	int (*add_internal_bitmap)(struct supertype *st, void *sbv, int chunk, int delay, int write_behind,
				   unsigned long long size, int may_change, int major);
	void (*locate_bitmap)(struct supertype *st, int fd, void *sbv);
	int (*write_bitmap)(struct supertype *st, int fd, void *sbv);
	int major;
	int swapuuid; /* true if uuid is bigending rather than hostendian */
} super0, super1, *superlist[];

struct supertype {
	struct superswitch *ss;
	int minor_version;
	int max_devs;
};

extern struct supertype *super_by_version(int vers, int minor);
extern struct supertype *guess_super(int fd);

#if __GNUC__ < 3
struct stat64;
#endif

#ifdef UCLIBC
  struct FTW {};
# define FTW_PHYS 1
#else
# define  __USE_XOPEN_EXTENDED
# include <ftw.h>
# ifdef __dietlibc__
#  define FTW_PHYS 1
# endif
#endif

extern int add_dev(const char *name, const struct stat *stb, int flag, struct FTW *s);


extern int Manage_ro(char *devname, int fd, int readonly);
extern int Manage_runstop(char *devname, int fd, int runstop, int quiet);
extern int Manage_resize(char *devname, int fd, long long size, int raid_disks);
extern int Manage_reconfig(char *devname, int fd, int layout);
extern int Manage_subdevs(char *devname, int fd,
			  mddev_dev_t devlist, int verbose);
extern int Grow_Add_device(char *devname, int fd, char *newdev);
extern int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int write_behind, int force);


extern int Assemble(struct supertype *st, char *mddev, int mdfd,
		    mddev_ident_t ident,
		    char *conffile,
		    mddev_dev_t devlist,
		    int readonly, int runstop,
		    char *update,
		    int verbose, int force);

extern int Build(char *mddev, int mdfd, int chunk, int level, int layout,
		 int raiddisks,
		 mddev_dev_t devlist, int assume_clean,
		 char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int verbose);


extern int Create(struct supertype *st, char *mddev, int mdfd,
		  int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks,
		  char *name,
		  int subdevs, mddev_dev_t devlist,
		  int runstop, int verbose, int force, int assume_clean,
		  char *bitmap_file, int bitmap_chunk, int write_behind, int delay);

extern int Detail(char *dev, int brief, int test);
extern int Query(char *dev);
extern int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust,
		   struct supertype *forcest);
extern int Monitor(mddev_dev_t devlist,
		   char *mailaddr, char *alert_cmd,
		   int period, int daemonise, int scan, int oneshot,
		   int dosyslog, char *config, int test, char *pidfile);

extern int Kill(char *dev, int force);

extern int CreateBitmap(char *filename, int force, char uuid[16],
			unsigned long chunksize, unsigned long daemon_sleep,
			unsigned long write_behind,
			unsigned long long array_size,
			int major);
extern int ExamineBitmap(char *filename, int brief, struct supertype *st);

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 int get_mdp_major(void);
extern int dev_open(char *dev, int flags);
extern int is_standard(char *dev, int *nump);


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 char *conf_word(FILE *file, int allow_key);
extern void free_line(char *line);
extern int match_oneof(char *devices, char *devname);
extern void uuid_from_super(int uuid[4], mdp_super_t *super);
extern int same_uuid(int a[4], int b[4], int swapuuid);
/* extern int compare_super(mdp_super_t *first, mdp_super_t *second);*/
extern unsigned long calc_csum(void *super, int bytes);
extern int enough(int level, int raid_disks, int layout,
		   char *avail, int avail_disks);
extern int ask(char *mesg);
extern unsigned long long get_component_size(int fd);


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);

extern char DefaultConfFile[];

extern int open_mddev(char *dev, int autof);


#define	LEVEL_MULTIPATH		(-4)
#define	LEVEL_LINEAR		(-1)
#define	LEVEL_FAULTY		(-5)


/* faulty stuff */

#define	WriteTransient	0
#define	ReadTransient	1
#define	WritePersistent	2
#define	ReadPersistent	3
#define	WriteAll	4 /* doesn't go to device */
#define	ReadFixable	5
#define	Modes	6

#define	ClearErrors	31
#define	ClearFaults	30

#define AllPersist	100 /* internal use only */
#define	NoPersist	101

#define	ModeMask	0x1f
#define	ModeShift	5


#ifdef __TINYC__
#undef minor
#undef major
#undef makedev
#define minor(x) ((x)&0xff)
#define major(x) (((x)>>8)&0xff)
#define makedev(M,m) (((M)<<8) | (m))
#endif
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
	30	#define __USE_LARGEFILE64
	31	#include <unistd.h>
98c6faba	32	#ifndef __dietlibc__
64c4757e	33	extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence));
98c6faba	34	#endif
64c4757e NB	35
	36	#include <sys/types.h>
	37	#include <sys/stat.h>
	38	#include <stdlib.h>
	39	#include <time.h>
11018a45	40	#include <sys/time.h>
64c4757e NB	41	#include <getopt.h>
	42	#include <fcntl.h>
	43	#include <stdio.h>
	44	#include <errno.h>
	45	#include <string.h>
773135f5	46	#include <syslog.h>
98c6faba NB	47	#ifdef __dietlibc__NONO
	48	int strncmp(const char s1, const char s2, size_t n) __THROW __pure__;
	49	char strncpy(char dest, const char *src, size_t n) __THROW;
	50	#include <strings.h>
	51	#endif
	52
64c4757e NB	53
64c4757e NB	54	#include <linux/kdev_t.h>
e0d19036 NB	55	/#include <linux/fs.h> /
	56	#include <sys/mount.h>
	57	#include <asm/types.h>
64c4757e NB	58	#include <sys/ioctl.h>
64c4757e NB	59	#define MD_MAJOR 9
dd0781e5	60	#define MdpMinorShift 6
64c4757e	61
e0d19036	62	#ifndef BLKGETSIZE64
98c6faba	63	#define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 arg) /
e0d19036	64	#endif
56eb10c0	65
c82f047c NB	66	#define DEFAULT_BITMAP_CHUNK 4096
c82f047c NB	67	#define DEFAULT_BITMAP_DELAY 5
dfd4d8ee	68	#define DEFAULT_MAX_WRITE_BEHIND 256
64c4757e NB	69
64c4757e NB	70	#include "md_u.h"
e0d19036	71	#include "md_p.h"
c82f047c	72	#include "bitmap.h"
64c4757e	73
4b1ac34b NB	74	/* general information that might be extracted from a superblock */
	75	struct mdinfo {
	76	mdu_array_info_t array;
	77	mdu_disk_info_t disk;
	78	__u64 events;
fbf8a0b7	79	int uuid[4];
4b1ac34b NB	80	};
4b1ac34b NB	81
9a9dab36	82	#define Name "mdadm"
682c7051	83
e0d19036 NB	84	enum mode {
	85	ASSEMBLE=1,
	86	BUILD,
	87	CREATE,
	88	MANAGE,
	89	MISC,
	90	MONITOR,
dd0781e5	91	GROW,
e0d19036 NB	92	};
e0d19036 NB	93
64c4757e	94	extern char short_options[];
c06487ce	95	extern char short_bitmap_auto_options[];
64c4757e	96	extern struct option long_options[];
56eedc1a	97	extern char Version[], Usage[], Help[], OptionHelp[],
dd0781e5	98	Help_create[], Help_build[], Help_assemble[], Help_grow[],
e0d19036	99	Help_manage[], Help_misc[], Help_monitor[], Help_config[];
64c4757e NB	100
64c4757e NB	101	/* structures read from config file */
52826846 NB	102	/* List of mddevice names and identifiers
	103	* Identifiers can be:
	104	* uuid=128-hex-uuid
	105	* super-minor=decimal-minor-number-from-superblock
	106	* devices=comma,separated,list,of,device,names,with,wildcards
	107	*
	108	* If multiple fields are present, the intersection of all matching
	109	* devices is considered
	110	*/
98c6faba	111	#define UnSet (0xfffe)
52826846	112	typedef struct mddev_ident_s {
dd0781e5	113	char *devname;
52826846	114
dd0781e5	115	int uuid_set;
3fa06e9d	116	int uuid[4];
947fd4dd	117	char name[33];
52826846	118
98c6faba	119	unsigned int super_minor;
52826846	120
dd0781e5	121	char devices; / comma separated list of device
52826846 NB	122	* names with wild cards
52826846 NB	123	*/
dd0781e5	124	int level;
98c6faba NB	125	unsigned int raid_disks;
98c6faba NB	126	unsigned int spare_disks;
82d9eba6	127	struct supertype *st;
dd0781e5 NB	128	int autof; /* 1 for normal, 2 for partitioned */
dd0781e5 NB	129	char *spare_group;
c82f047c	130	int bitmap_fd;
dd0781e5	131
52826846 NB	132	struct mddev_ident_s *next;
52826846 NB	133	} *mddev_ident_t;
64c4757e NB	134
	135	/* List of device names - wildcards expanded */
	136	typedef struct mddev_dev_s {
	137	char *devname;
cd29a5c8 NB	138	char disposition; /* 'a' for add, 'r' for remove, 'f' for fail.
	139	* Not set for names read from .config
	140	*/
dfd4d8ee	141	char writemostly;
fe80f49b	142	char re_add;
64c4757e NB	143	struct mddev_dev_s *next;
	144	} *mddev_dev_t;
	145
682c7051 NB	146	typedef struct mapping {
	147	char *name;
	148	int num;
	149	} mapping_t;
	150
e0d19036 NB	151
	152	struct mdstat_ent {
	153	char *dev;
	154	int devnum;
	155	int active;
	156	char *level;
	157	char pattern; / U or up, _ for down */
	158	int percent; /* -1 if no resync */
e5329c37	159	int resync; /* 1 if resync, 0 if recovery */
e0d19036 NB	160	struct mdstat_ent *next;
	161	};
	162
dd0781e5	163	extern struct mdstat_ent *mdstat_read(int);
e0d19036	164	extern void free_mdstat(struct mdstat_ent *ms);
dd0781e5	165	extern void mdstat_wait(int seconds);
e0d19036	166
52826846 NB	167	#ifndef Sendmail
	168	#define Sendmail "/usr/lib/sendmail -t"
	169	#endif
	170
773135f5 NB	171	#define SYSLOG_FACILITY LOG_DAEMON
773135f5 NB	172
682c7051 NB	173	extern char map_num(mapping_t map, int num);
682c7051 NB	174	extern int map_name(mapping_t map, char name);
b5e64645	175	extern mapping_t r5layout[], pers[], modes[], faultylayout[];
682c7051	176
82b27616	177	extern char *map_dev(int major, int minor);
64c4757e NB	178
64c4757e NB	179
f9ce90ba NB	180	extern struct superswitch {
	181	void (examine_super)(void sbv);
	182	void (brief_examine_super)(void sbv);
	183	void (detail_super)(void sbv);
	184	void (brief_detail_super)(void sbv);
	185	void (uuid_from_super)(int uuid[4], void sbv);
947fd4dd	186	void (getinfo_super)(struct mdinfo info, mddev_ident_t ident, void *sbv);
f9ce90ba NB	187	int (update_super)(struct mdinfo info, void sbv, char update, char *devname, int verbose);
f9ce90ba NB	188	__u64 (event_super)(void sbv);
5dd497ee	189	int (init_super)(struct supertype st, void *sbp, mdu_array_info_t info, unsigned long long size, char *name);
f9ce90ba	190	void (add_to_super)(void sbv, mdu_disk_info_t *dinfo);
96395475	191	int (store_super)(struct supertype st, int fd, void *sbv);
1bf4e2d9	192	int (write_init_super)(struct supertype st, void sbv, mdu_disk_info_t dinfo, char *devname);
f9ce90ba	193	int (compare_super)(void firstp, void secondv);
82d9eba6 NB	194	int (load_super)(struct supertype st, int fd, void *sbp, char devname);
82d9eba6 NB	195	struct supertype * (match_metadata_desc)(char arg);
1bf4e2d9	196	__u64 (avail_size)(struct supertype st, __u64 size);
f9c25f1d NB	197	int (add_internal_bitmap)(struct supertype st, void *sbv, int chunk, int delay, int write_behind,
f9c25f1d NB	198	unsigned long long size, int may_change, int major);
f6d75de8	199	void (locate_bitmap)(struct supertype st, int fd, void *sbv);
f5e166fe	200	int (write_bitmap)(struct supertype st, int fd, void *sbv);
82d9eba6	201	int major;
f277ce36	202	int swapuuid; /* true if uuid is bigending rather than hostendian */
82d9eba6 NB	203	} super0, super1, *superlist[];
	204
	205	struct supertype {
	206	struct superswitch *ss;
	207	int minor_version;
ea329559	208	int max_devs;
82d9eba6	209	};
f9ce90ba	210
82d9eba6 NB	211	extern struct supertype *super_by_version(int vers, int minor);
82d9eba6 NB	212	extern struct supertype *guess_super(int fd);
f9ce90ba	213
838acbc2 NB	214	#if __GNUC__ < 3
	215	struct stat64;
	216	#endif
	217
173fc515 NB	218	#ifdef UCLIBC
	219	struct FTW {};
	220	# define FTW_PHYS 1
	221	#else
	222	# define __USE_XOPEN_EXTENDED
	223	# include <ftw.h>
	224	# ifdef __dietlibc__
	225	# define FTW_PHYS 1
	226	# endif
	227	#endif
	228
	229	extern int add_dev(const char name, const struct stat stb, int flag, struct FTW *s);
	230
f9ce90ba	231
64c4757e	232	extern int Manage_ro(char *devname, int fd, int readonly);
91f068bf	233	extern int Manage_runstop(char *devname, int fd, int runstop, int quiet);
dd0781e5	234	extern int Manage_resize(char *devname, int fd, long long size, int raid_disks);
b5e64645	235	extern int Manage_reconfig(char *devname, int fd, int layout);
64c4757e	236	extern int Manage_subdevs(char *devname, int fd,
dab6685f	237	mddev_dev_t devlist, int verbose);
e5329c37	238	extern int Grow_Add_device(char devname, int fd, char newdev);
8fac0577	239	extern int Grow_addbitmap(char devname, int fd, char file, int chunk, int delay, int write_behind, int force);
64c4757e NB	240
64c4757e NB	241
82d9eba6	242	extern int Assemble(struct supertype st, char mddev, int mdfd,
52826846 NB	243	mddev_ident_t ident,
52826846 NB	244	char *conffile,
cd29a5c8	245	mddev_dev_t devlist,
64c4757e	246	int readonly, int runstop,
5787fa49	247	char *update,
64c4757e NB	248	int verbose, int force);
64c4757e NB	249
b5e64645	250	extern int Build(char *mddev, int mdfd, int chunk, int level, int layout,
64c4757e	251	int raiddisks,
c82f047c	252	mddev_dev_t devlist, int assume_clean,
dab6685f	253	char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int verbose);
64c4757e NB	254
64c4757e NB	255
82d9eba6	256	extern int Create(struct supertype st, char mddev, int mdfd,
5dd497ee	257	int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks,
947fd4dd	258	char *name,
cd29a5c8	259	int subdevs, mddev_dev_t devlist,
47d79ef8	260	int runstop, int verbose, int force, int assume_clean,
dfd4d8ee	261	char *bitmap_file, int bitmap_chunk, int write_behind, int delay);
64c4757e	262
feb716e9	263	extern int Detail(char *dev, int brief, int test);
e0d19036	264	extern int Query(char *dev);
82d9eba6 NB	265	extern int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust,
82d9eba6 NB	266	struct supertype *forcest);
cd29a5c8	267	extern int Monitor(mddev_dev_t devlist,
e0d19036	268	char mailaddr, char alert_cmd,
aa88f531	269	int period, int daemonise, int scan, int oneshot,
773135f5	270	int dosyslog, char config, int test, char pidfile);
64c4757e	271
9a9dab36 NB	272	extern int Kill(char *dev, int force);
9a9dab36 NB	273
c82f047c NB	274	extern int CreateBitmap(char *filename, int force, char uuid[16],
c82f047c NB	275	unsigned long chunksize, unsigned long daemon_sleep,
dfd4d8ee	276	unsigned long write_behind,
dcec9ee5 NB	277	unsigned long long array_size,
dcec9ee5 NB	278	int major);
55935d51	279	extern int ExamineBitmap(char filename, int brief, struct supertype st);
c82f047c	280
64c4757e	281	extern int md_get_version(int fd);
e0d19036	282	extern int get_linux_version(void);
64c4757e	283	extern int parse_uuid(char *str, int uuid[4]);
682c7051 NB	284	extern int check_ext2(int fd, char *name);
	285	extern int check_reiser(int fd, char *name);
	286	extern int check_raid(int fd, char *name);
64c4757e	287
dd0781e5	288	extern int get_mdp_major(void);
8b0dabea	289	extern int dev_open(char *dev, int flags);
8d80900b	290	extern int is_standard(char dev, int nump);
dd0781e5 NB	291
dd0781e5 NB	292
e0d19036 NB	293	extern mddev_ident_t conf_get_ident(char conffile, char dev);
	294	extern mddev_dev_t conf_get_devs(char *conffile);
	295	extern char conf_get_mailaddr(char conffile);
	296	extern char conf_get_program(char conffile);
	297	extern char conf_line(FILE file);
98c6faba	298	extern char conf_word(FILE file, int allow_key);
e0d19036 NB	299	extern void free_line(char *line);
e0d19036 NB	300	extern int match_oneof(char devices, char devname);
e0d19036	301	extern void uuid_from_super(int uuid[4], mdp_super_t *super);
f277ce36	302	extern int same_uuid(int a[4], int b[4], int swapuuid);
4b1ac34b NB	303	/* extern int compare_super(mdp_super_t first, mdp_super_t second);*/
4b1ac34b NB	304	extern unsigned long calc_csum(void *super, int bytes);
265e0f17 NB	305	extern int enough(int level, int raid_disks, int layout,
265e0f17 NB	306	char *avail, int avail_disks);
e0d19036	307	extern int ask(char *mesg);
8fac0577	308	extern unsigned long long get_component_size(int fd);
e0d19036	309
cd29a5c8	310
56eb10c0	311	extern char *human_size(long long bytes);
e0d19036 NB	312	char *human_size_brief(long long bytes);
	313
	314	extern void put_md_name(char *name);
	315	extern char *get_md_name(int dev);
	316
c913b90e	317	extern char DefaultConfFile[];
b5e64645 NB	318
	319	extern int open_mddev(char *dev, int autof);
	320
	321
	322	#define LEVEL_MULTIPATH (-4)
	323	#define LEVEL_LINEAR (-1)
	324	#define LEVEL_FAULTY (-5)
	325
	326
	327	/* faulty stuff */
	328
	329	#define WriteTransient 0
	330	#define ReadTransient 1
	331	#define WritePersistent 2
	332	#define ReadPersistent 3
	333	#define WriteAll 4 /* doesn't go to device */
	334	#define ReadFixable 5
	335	#define Modes 6
	336
	337	#define ClearErrors 31
	338	#define ClearFaults 30
	339
	340	#define AllPersist 100 /* internal use only */
	341	#define NoPersist 101
	342
	343	#define ModeMask 0x1f
	344	#define ModeShift 5
fe6729fa NB	345
	346
	347	#ifdef __TINYC__
	348	#undef minor
	349	#undef major
	350	#undef makedev
	351	#define minor(x) ((x)&0xff)
	352	#define major(x) (((x)>>8)&0xff)
	353	#define makedev(M,m) (((M)<<8) \| (m))
	354	#endif
	355