1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/*
* 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 <getopt.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <string.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
#include "md_u.h"
#include "md_p.h"
#define Name "mdadm"
enum mode {
ASSEMBLE=1,
BUILD,
CREATE,
MANAGE,
MISC,
MONITOR,
GROW,
};
extern char short_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;
__u32 uuid[4];
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;
int autof; /* 1 for normal, 2 for partitioned */
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(int);
extern void free_mdstat(struct mdstat_ent *ms);
extern void mdstat_wait(int seconds);
#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_resize(char *devname, int fd, long long size, int raid_disks);
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,
char *update,
int verbose, int force);
extern int Build(char *mddev, int mdfd, int chunk, int level,
int raiddisks,
mddev_dev_t devlist, int assume_clean);
extern int Create(char *mddev, int mdfd,
int chunk, int level, int layout, unsigned long size, int raiddisks, int sparedisks,
int subdevs, mddev_dev_t devlist,
int runstop, int verbose, int force);
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);
extern int Monitor(mddev_dev_t devlist,
char *mailaddr, char *alert_cmd,
int period, int daemonise, int scan, int oneshot,
char *config, int test);
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 int get_mdp_major(void);
extern int is_standard(char *dev);
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 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 unsigned long 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);
extern char DefaultConfFile[];
|
