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Commit | Line | Data |
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64c4757e | 1 | /* |
9a9dab36 | 2 | * mdadm - manage Linux "md" devices aka RAID arrays. |
64c4757e | 3 | * |
4f589ad0 | 4 | * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de> |
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 | ||
4ccdb956 | 30 | #define _GNU_SOURCE |
64c4757e | 31 | #include <unistd.h> |
98c6faba | 32 | #ifndef __dietlibc__ |
64c4757e | 33 | extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); |
f783ca4f NB |
34 | #else |
35 | # ifdef __NO_STAT64 | |
36 | # define lseek64 lseek | |
37 | # endif | |
98c6faba | 38 | #endif |
64c4757e NB |
39 | |
40 | #include <sys/types.h> | |
41 | #include <sys/stat.h> | |
42 | #include <stdlib.h> | |
43 | #include <time.h> | |
11018a45 | 44 | #include <sys/time.h> |
64c4757e NB |
45 | #include <getopt.h> |
46 | #include <fcntl.h> | |
47 | #include <stdio.h> | |
48 | #include <errno.h> | |
49 | #include <string.h> | |
773135f5 | 50 | #include <syslog.h> |
b56c3630 NB |
51 | #ifdef __dietlibc__ |
52 | #include <strings.h> | |
280a927d NB |
53 | /* dietlibc has deprecated random and srandom!! */ |
54 | #define random rand | |
55 | #define srandom srand | |
98c6faba NB |
56 | #endif |
57 | ||
64c4757e NB |
58 | |
59 | #include <linux/kdev_t.h> | |
e0d19036 NB |
60 | /*#include <linux/fs.h> */ |
61 | #include <sys/mount.h> | |
62 | #include <asm/types.h> | |
64c4757e NB |
63 | #include <sys/ioctl.h> |
64 | #define MD_MAJOR 9 | |
dd0781e5 | 65 | #define MdpMinorShift 6 |
64c4757e | 66 | |
e0d19036 | 67 | #ifndef BLKGETSIZE64 |
98c6faba | 68 | #define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 *arg) */ |
e0d19036 | 69 | #endif |
56eb10c0 | 70 | |
c82f047c NB |
71 | #define DEFAULT_BITMAP_CHUNK 4096 |
72 | #define DEFAULT_BITMAP_DELAY 5 | |
dfd4d8ee | 73 | #define DEFAULT_MAX_WRITE_BEHIND 256 |
64c4757e NB |
74 | |
75 | #include "md_u.h" | |
e0d19036 | 76 | #include "md_p.h" |
c82f047c | 77 | #include "bitmap.h" |
64c4757e | 78 | |
1e0d770c | 79 | #include <endian.h> |
efd441d1 NB |
80 | /* Redhat don't like to #include <asm/byteorder.h>, and |
81 | * some time include <linux/byteorder/xxx_endian.h> isn't enough, | |
82 | * and there is no standard conversion function so... */ | |
0ae03b8a NB |
83 | /* And dietlibc doesn't think byteswap is ok, so.. */ |
84 | /* #include <byteswap.h> */ | |
85 | #define bswap_16(x) (((x) & 0x00ffU) << 8 | \ | |
86 | ((x) & 0xff00U) >> 8) | |
87 | #define bswap_32(x) (((x) & 0x000000ffU) << 24 | \ | |
88 | ((x) & 0xff000000U) >> 24 | \ | |
89 | ((x) & 0x0000ff00U) << 8 | \ | |
90 | ((x) & 0x00ff0000U) >> 8) | |
91 | #define bswap_64(x) (((x) & 0x00000000000000ffULL) << 56 | \ | |
92 | ((x) & 0xff00000000000000ULL) >> 56 | \ | |
93 | ((x) & 0x000000000000ff00ULL) << 40 | \ | |
94 | ((x) & 0x00ff000000000000ULL) >> 40 | \ | |
95 | ((x) & 0x0000000000ff0000ULL) << 24 | \ | |
96 | ((x) & 0x0000ff0000000000ULL) >> 24 | \ | |
97 | ((x) & 0x00000000ff000000ULL) << 8 | \ | |
98 | ((x) & 0x000000ff00000000ULL) >> 8) | |
99 | ||
efd441d1 NB |
100 | #if BYTE_ORDER == LITTLE_ENDIAN |
101 | #define __cpu_to_le16(_x) (_x) | |
102 | #define __cpu_to_le32(_x) (_x) | |
103 | #define __cpu_to_le64(_x) (_x) | |
104 | #define __le16_to_cpu(_x) (_x) | |
105 | #define __le32_to_cpu(_x) (_x) | |
106 | #define __le64_to_cpu(_x) (_x) | |
107 | #elif BYTE_ORDER == BIG_ENDIAN | |
108 | #define __cpu_to_le16(_x) bswap_16(_x) | |
109 | #define __cpu_to_le32(_x) bswap_32(_x) | |
110 | #define __cpu_to_le64(_x) bswap_64(_x) | |
111 | #define __le16_to_cpu(_x) bswap_16(_x) | |
112 | #define __le32_to_cpu(_x) bswap_32(_x) | |
113 | #define __le64_to_cpu(_x) bswap_64(_x) | |
1e0d770c NB |
114 | #else |
115 | # error "unknown endianness." | |
116 | #endif | |
117 | ||
118 | ||
119 | ||
4b1ac34b NB |
120 | /* general information that might be extracted from a superblock */ |
121 | struct mdinfo { | |
122 | mdu_array_info_t array; | |
123 | mdu_disk_info_t disk; | |
124 | __u64 events; | |
fbf8a0b7 | 125 | int uuid[4]; |
31317663 | 126 | char name[33]; |
353632d9 NB |
127 | unsigned long long data_offset; |
128 | unsigned long long component_size; | |
129 | int reshape_active; | |
130 | unsigned long long reshape_progress; | |
131 | int new_level, delta_disks, new_layout, new_chunk; | |
4b1ac34b NB |
132 | }; |
133 | ||
5bbb4842 NB |
134 | struct createinfo { |
135 | int uid; | |
136 | int gid; | |
137 | int autof; | |
138 | int mode; | |
38098016 | 139 | int symlinks; |
058574b1 | 140 | struct supertype *supertype; |
5bbb4842 NB |
141 | }; |
142 | ||
9a9dab36 | 143 | #define Name "mdadm" |
682c7051 | 144 | |
e0d19036 NB |
145 | enum mode { |
146 | ASSEMBLE=1, | |
147 | BUILD, | |
148 | CREATE, | |
149 | MANAGE, | |
150 | MISC, | |
151 | MONITOR, | |
dd0781e5 | 152 | GROW, |
8382f19b | 153 | INCREMENTAL, |
e0d19036 NB |
154 | }; |
155 | ||
64c4757e | 156 | extern char short_options[]; |
c06487ce | 157 | extern char short_bitmap_auto_options[]; |
64c4757e | 158 | extern struct option long_options[]; |
56eedc1a | 159 | extern char Version[], Usage[], Help[], OptionHelp[], |
dd0781e5 | 160 | Help_create[], Help_build[], Help_assemble[], Help_grow[], |
8382f19b | 161 | Help_incr[], |
e0d19036 | 162 | Help_manage[], Help_misc[], Help_monitor[], Help_config[]; |
64c4757e | 163 | |
997aed5d NB |
164 | /* for option that don't have short equivilents, we assign arbitrary |
165 | * small numbers. '1' means an undecorated option, so we start at '2'. | |
166 | */ | |
167 | enum special_options { | |
168 | AssumeClean = 2, | |
169 | BitmapChunk, | |
170 | WriteBehind, | |
171 | ReAdd, | |
172 | NoDegraded, | |
173 | Sparc22, | |
174 | BackupFile, | |
175 | HomeHost, | |
589395d6 | 176 | AutoHomeHost, |
38098016 | 177 | Symlinks, |
997aed5d NB |
178 | }; |
179 | ||
64c4757e | 180 | /* structures read from config file */ |
52826846 NB |
181 | /* List of mddevice names and identifiers |
182 | * Identifiers can be: | |
183 | * uuid=128-hex-uuid | |
184 | * super-minor=decimal-minor-number-from-superblock | |
185 | * devices=comma,separated,list,of,device,names,with,wildcards | |
186 | * | |
187 | * If multiple fields are present, the intersection of all matching | |
188 | * devices is considered | |
189 | */ | |
98c6faba | 190 | #define UnSet (0xfffe) |
52826846 | 191 | typedef struct mddev_ident_s { |
dd0781e5 | 192 | char *devname; |
52826846 | 193 | |
dd0781e5 | 194 | int uuid_set; |
3fa06e9d | 195 | int uuid[4]; |
947fd4dd | 196 | char name[33]; |
52826846 | 197 | |
98c6faba | 198 | unsigned int super_minor; |
52826846 | 199 | |
dd0781e5 | 200 | char *devices; /* comma separated list of device |
52826846 NB |
201 | * names with wild cards |
202 | */ | |
dd0781e5 | 203 | int level; |
98c6faba NB |
204 | unsigned int raid_disks; |
205 | unsigned int spare_disks; | |
82d9eba6 | 206 | struct supertype *st; |
dd0781e5 NB |
207 | int autof; /* 1 for normal, 2 for partitioned */ |
208 | char *spare_group; | |
7ef02d01 | 209 | char *bitmap_file; |
c82f047c | 210 | int bitmap_fd; |
dd0781e5 | 211 | |
52826846 NB |
212 | struct mddev_ident_s *next; |
213 | } *mddev_ident_t; | |
64c4757e NB |
214 | |
215 | /* List of device names - wildcards expanded */ | |
216 | typedef struct mddev_dev_s { | |
217 | char *devname; | |
cd29a5c8 NB |
218 | char disposition; /* 'a' for add, 'r' for remove, 'f' for fail. |
219 | * Not set for names read from .config | |
220 | */ | |
dfd4d8ee | 221 | char writemostly; |
fe80f49b | 222 | char re_add; |
811e6cbe | 223 | char used; /* set when used */ |
64c4757e NB |
224 | struct mddev_dev_s *next; |
225 | } *mddev_dev_t; | |
226 | ||
682c7051 NB |
227 | typedef struct mapping { |
228 | char *name; | |
229 | int num; | |
230 | } mapping_t; | |
231 | ||
e0d19036 NB |
232 | |
233 | struct mdstat_ent { | |
234 | char *dev; | |
235 | int devnum; | |
236 | int active; | |
237 | char *level; | |
238 | char *pattern; /* U or up, _ for down */ | |
239 | int percent; /* -1 if no resync */ | |
e5329c37 | 240 | int resync; /* 1 if resync, 0 if recovery */ |
e0d19036 NB |
241 | struct mdstat_ent *next; |
242 | }; | |
243 | ||
22a88995 | 244 | extern struct mdstat_ent *mdstat_read(int hold, int start); |
e0d19036 | 245 | extern void free_mdstat(struct mdstat_ent *ms); |
dd0781e5 | 246 | extern void mdstat_wait(int seconds); |
8382f19b NB |
247 | extern int mddev_busy(int devnum); |
248 | ||
249 | struct map_ent { | |
250 | struct map_ent *next; | |
251 | int devnum; | |
252 | int major,minor; | |
253 | int uuid[4]; | |
254 | char *path; | |
255 | }; | |
256 | extern int map_update(struct map_ent **mpp, int devnum, int major, int minor, | |
257 | int uuid[4], char *path); | |
258 | extern struct map_ent *map_by_uuid(struct map_ent **map, int uuid[4]); | |
259 | extern void map_read(struct map_ent **melp); | |
260 | extern int map_write(struct map_ent *mel); | |
261 | extern void map_delete(struct map_ent **mapp, int devnum); | |
262 | extern void map_free(struct map_ent *map); | |
263 | extern void map_add(struct map_ent **melp, | |
264 | int devnum, int major, int minor, int uuid[4], char *path); | |
e0d19036 | 265 | |
e86c9dd6 NB |
266 | /* Data structure for holding info read from sysfs */ |
267 | struct sysdev { | |
268 | char name[20]; | |
269 | int role; | |
270 | int major, minor; | |
271 | unsigned long long offset, size; | |
272 | int state; | |
273 | int errors; | |
274 | struct sysdev *next; | |
275 | }; | |
276 | struct sysarray { | |
277 | char name[20]; | |
278 | struct sysdev *devs; | |
279 | int chunk; | |
280 | unsigned long long component_size; | |
281 | int layout; | |
282 | int level; | |
283 | int spares; | |
758d3a8e | 284 | int cache_size; |
37dfc3d6 | 285 | int mismatch_cnt; |
8382f19b | 286 | int major_version, minor_version; |
e86c9dd6 NB |
287 | }; |
288 | /* various details can be requested */ | |
289 | #define GET_LEVEL 1 | |
290 | #define GET_LAYOUT 2 | |
291 | #define GET_COMPONENT 4 | |
292 | #define GET_CHUNK 8 | |
758d3a8e | 293 | #define GET_CACHE 16 |
37dfc3d6 | 294 | #define GET_MISMATCH 32 |
8382f19b | 295 | #define GET_VERSION 64 |
e86c9dd6 NB |
296 | |
297 | #define GET_DEVS 1024 /* gets role, major, minor */ | |
298 | #define GET_OFFSET 2048 | |
299 | #define GET_SIZE 4096 | |
300 | #define GET_STATE 8192 | |
301 | #define GET_ERROR 16384 | |
302 | ||
303 | /* If fd >= 0, get the array it is open on, | |
304 | * else use devnum. >=0 -> major9. <0..... | |
305 | */ | |
8382f19b | 306 | extern void sysfs_free(struct sysarray *sra); |
e86c9dd6 NB |
307 | extern struct sysarray *sysfs_read(int fd, int devnum, unsigned long options); |
308 | extern int sysfs_set_str(struct sysarray *sra, struct sysdev *dev, | |
309 | char *name, char *val); | |
310 | extern int sysfs_set_num(struct sysarray *sra, struct sysdev *dev, | |
311 | char *name, unsigned long long val); | |
312 | extern int sysfs_get_ll(struct sysarray *sra, struct sysdev *dev, | |
313 | char *name, unsigned long long *val); | |
314 | ||
315 | ||
316 | extern int save_stripes(int *source, unsigned long long *offsets, | |
317 | int raid_disks, int chunk_size, int level, int layout, | |
318 | int nwrites, int *dest, | |
319 | unsigned long long start, unsigned long long length); | |
353632d9 NB |
320 | extern int restore_stripes(int *dest, unsigned long long *offsets, |
321 | int raid_disks, int chunk_size, int level, int layout, | |
322 | int source, unsigned long long read_offset, | |
323 | unsigned long long start, unsigned long long length); | |
e86c9dd6 | 324 | |
52826846 NB |
325 | #ifndef Sendmail |
326 | #define Sendmail "/usr/lib/sendmail -t" | |
327 | #endif | |
328 | ||
773135f5 NB |
329 | #define SYSLOG_FACILITY LOG_DAEMON |
330 | ||
682c7051 NB |
331 | extern char *map_num(mapping_t *map, int num); |
332 | extern int map_name(mapping_t *map, char *name); | |
b5e64645 | 333 | extern mapping_t r5layout[], pers[], modes[], faultylayout[]; |
682c7051 | 334 | |
16c6fa80 | 335 | extern char *map_dev(int major, int minor, int create); |
64c4757e NB |
336 | |
337 | ||
f9ce90ba | 338 | extern struct superswitch { |
a1cbd7d0 | 339 | void (*examine_super)(void *sbv, char *homehost); |
f9ce90ba | 340 | void (*brief_examine_super)(void *sbv); |
b6750aa8 | 341 | void (*detail_super)(void *sbv, char *homehost); |
f9ce90ba NB |
342 | void (*brief_detail_super)(void *sbv); |
343 | void (*uuid_from_super)(int uuid[4], void *sbv); | |
31317663 | 344 | void (*getinfo_super)(struct mdinfo *info, void *sbv); |
83b6208e | 345 | int (*match_home)(void *sbv, char *homehost); |
e5eac01f NB |
346 | int (*update_super)(struct mdinfo *info, void *sbv, char *update, |
347 | char *devname, int verbose, | |
348 | int uuid_set, char *homehost); | |
3d3dd91e | 349 | int (*init_super)(struct supertype *st, void **sbp, mdu_array_info_t *info, unsigned long long size, char *name, char *homehost, int *uuid); |
f9ce90ba | 350 | void (*add_to_super)(void *sbv, mdu_disk_info_t *dinfo); |
96395475 | 351 | int (*store_super)(struct supertype *st, int fd, void *sbv); |
1bf4e2d9 | 352 | int (*write_init_super)(struct supertype *st, void *sbv, mdu_disk_info_t *dinfo, char *devname); |
f9ce90ba | 353 | int (*compare_super)(void **firstp, void *secondv); |
82d9eba6 NB |
354 | int (*load_super)(struct supertype *st, int fd, void **sbp, char *devname); |
355 | struct supertype * (*match_metadata_desc)(char *arg); | |
1bf4e2d9 | 356 | __u64 (*avail_size)(struct supertype *st, __u64 size); |
199171a2 NB |
357 | int (*add_internal_bitmap)(struct supertype *st, void *sbv, int *chunkp, |
358 | int delay, int write_behind, | |
f9c25f1d | 359 | unsigned long long size, int may_change, int major); |
f6d75de8 | 360 | void (*locate_bitmap)(struct supertype *st, int fd, void *sbv); |
f5e166fe | 361 | int (*write_bitmap)(struct supertype *st, int fd, void *sbv); |
82d9eba6 | 362 | int major; |
f277ce36 | 363 | int swapuuid; /* true if uuid is bigending rather than hostendian */ |
82d9eba6 NB |
364 | } super0, super1, *superlist[]; |
365 | ||
366 | struct supertype { | |
367 | struct superswitch *ss; | |
368 | int minor_version; | |
ea329559 | 369 | int max_devs; |
82d9eba6 | 370 | }; |
f9ce90ba | 371 | |
82d9eba6 NB |
372 | extern struct supertype *super_by_version(int vers, int minor); |
373 | extern struct supertype *guess_super(int fd); | |
beae1dfe | 374 | extern int get_dev_size(int fd, char *dname, unsigned long long *sizep); |
8382f19b NB |
375 | extern void get_one_disk(int mdfd, mdu_array_info_t *ainf, |
376 | mdu_disk_info_t *disk); | |
f9ce90ba | 377 | |
838acbc2 NB |
378 | #if __GNUC__ < 3 |
379 | struct stat64; | |
380 | #endif | |
381 | ||
45e878bb NB |
382 | #define HAVE_NFTW we assume |
383 | #define HAVE_FTW | |
384 | ||
173fc515 | 385 | #ifdef UCLIBC |
45e878bb NB |
386 | # include <features.h> |
387 | # ifndef __UCLIBC_HAS_FTW__ | |
388 | # undef HAVE_FTW | |
389 | # undef HAVE_NFTW | |
390 | # endif | |
391 | #endif | |
392 | ||
393 | #ifdef __dietlibc__ | |
394 | # undef HAVE_NFTW | |
395 | #endif | |
396 | ||
397 | #ifndef HAVE_NFTW | |
173fc515 | 398 | # define FTW_PHYS 1 |
45e878bb NB |
399 | # ifndef HAVE_FTW |
400 | struct FTW {}; | |
173fc515 NB |
401 | # endif |
402 | #endif | |
403 | ||
45e878bb NB |
404 | #ifdef HAVE_FTW |
405 | # include <ftw.h> | |
406 | #endif | |
407 | ||
173fc515 NB |
408 | extern int add_dev(const char *name, const struct stat *stb, int flag, struct FTW *s); |
409 | ||
f9ce90ba | 410 | |
64c4757e | 411 | extern int Manage_ro(char *devname, int fd, int readonly); |
91f068bf | 412 | extern int Manage_runstop(char *devname, int fd, int runstop, int quiet); |
dd0781e5 | 413 | extern int Manage_resize(char *devname, int fd, long long size, int raid_disks); |
b5e64645 | 414 | extern int Manage_reconfig(char *devname, int fd, int layout); |
64c4757e | 415 | extern int Manage_subdevs(char *devname, int fd, |
dab6685f | 416 | mddev_dev_t devlist, int verbose); |
e5329c37 | 417 | extern int Grow_Add_device(char *devname, int fd, char *newdev); |
8fac0577 | 418 | extern int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int write_behind, int force); |
06b0d786 | 419 | extern int Grow_reshape(char *devname, int fd, int quiet, char *backup_file, |
e86c9dd6 NB |
420 | long long size, |
421 | int level, int layout, int chunksize, int raid_disks); | |
06b0d786 NB |
422 | extern int Grow_restart(struct supertype *st, struct mdinfo *info, |
423 | int *fdlist, int cnt, char *backup_file); | |
64c4757e NB |
424 | |
425 | ||
82d9eba6 | 426 | extern int Assemble(struct supertype *st, char *mddev, int mdfd, |
52826846 | 427 | mddev_ident_t ident, |
06b0d786 | 428 | mddev_dev_t devlist, char *backup_file, |
64c4757e | 429 | int readonly, int runstop, |
e5eac01f | 430 | char *update, char *homehost, |
64c4757e NB |
431 | int verbose, int force); |
432 | ||
b5e64645 | 433 | extern int Build(char *mddev, int mdfd, int chunk, int level, int layout, |
64c4757e | 434 | int raiddisks, |
c82f047c | 435 | mddev_dev_t devlist, int assume_clean, |
dab6685f | 436 | char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int verbose); |
64c4757e NB |
437 | |
438 | ||
82d9eba6 | 439 | extern int Create(struct supertype *st, char *mddev, int mdfd, |
5dd497ee | 440 | int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks, |
3d3dd91e | 441 | char *name, char *homehost, int *uuid, |
cd29a5c8 | 442 | int subdevs, mddev_dev_t devlist, |
47d79ef8 | 443 | int runstop, int verbose, int force, int assume_clean, |
dfd4d8ee | 444 | char *bitmap_file, int bitmap_chunk, int write_behind, int delay); |
64c4757e | 445 | |
b6750aa8 | 446 | extern int Detail(char *dev, int brief, int test, char *homehost); |
e0d19036 | 447 | extern int Query(char *dev); |
82d9eba6 | 448 | extern int Examine(mddev_dev_t devlist, int brief, int scan, int SparcAdjust, |
a1cbd7d0 | 449 | struct supertype *forcest, char *homehost); |
cd29a5c8 | 450 | extern int Monitor(mddev_dev_t devlist, |
e0d19036 | 451 | char *mailaddr, char *alert_cmd, |
aa88f531 | 452 | int period, int daemonise, int scan, int oneshot, |
8aec876d | 453 | int dosyslog, int test, char *pidfile); |
64c4757e | 454 | |
6409687b | 455 | extern int Kill(char *dev, int force, int quiet); |
b90c0e9a | 456 | extern int Wait(char *dev); |
9a9dab36 | 457 | |
8382f19b NB |
458 | extern int Incremental(char *devname, int verbose, int runstop, |
459 | struct supertype *st, char *homehost, int autof); | |
460 | extern void RebuildMap(void); | |
461 | extern int IncrementalScan(int verbose); | |
462 | ||
c82f047c NB |
463 | extern int CreateBitmap(char *filename, int force, char uuid[16], |
464 | unsigned long chunksize, unsigned long daemon_sleep, | |
dfd4d8ee | 465 | unsigned long write_behind, |
dcec9ee5 NB |
466 | unsigned long long array_size, |
467 | int major); | |
55935d51 | 468 | extern int ExamineBitmap(char *filename, int brief, struct supertype *st); |
bf4fb153 | 469 | extern int bitmap_update_uuid(int fd, int *uuid, int swap); |
c82f047c | 470 | |
64c4757e | 471 | extern int md_get_version(int fd); |
e0d19036 | 472 | extern int get_linux_version(void); |
64c4757e | 473 | extern int parse_uuid(char *str, int uuid[4]); |
682c7051 NB |
474 | extern int check_ext2(int fd, char *name); |
475 | extern int check_reiser(int fd, char *name); | |
476 | extern int check_raid(int fd, char *name); | |
64c4757e | 477 | |
dd0781e5 | 478 | extern int get_mdp_major(void); |
8b0dabea | 479 | extern int dev_open(char *dev, int flags); |
8d80900b | 480 | extern int is_standard(char *dev, int *nump); |
dd0781e5 | 481 | |
f1ae21c4 | 482 | extern int parse_auto(char *str, char *msg, int config); |
8aec876d NB |
483 | extern mddev_ident_t conf_get_ident(char *dev); |
484 | extern mddev_dev_t conf_get_devs(void); | |
8382f19b | 485 | extern int conf_test_dev(char *devname); |
8aec876d NB |
486 | extern struct createinfo *conf_get_create_info(void); |
487 | extern void set_conffile(char *file); | |
488 | extern char *conf_get_mailaddr(void); | |
489 | extern char *conf_get_mailfrom(void); | |
490 | extern char *conf_get_program(void); | |
491 | extern char *conf_get_homehost(void); | |
e0d19036 | 492 | extern char *conf_line(FILE *file); |
98c6faba | 493 | extern char *conf_word(FILE *file, int allow_key); |
e0d19036 NB |
494 | extern void free_line(char *line); |
495 | extern int match_oneof(char *devices, char *devname); | |
e0d19036 | 496 | extern void uuid_from_super(int uuid[4], mdp_super_t *super); |
f277ce36 | 497 | extern int same_uuid(int a[4], int b[4], int swapuuid); |
350f29f9 | 498 | extern void copy_uuid(void *a, int b[4], int swapuuid); |
4b1ac34b NB |
499 | /* extern int compare_super(mdp_super_t *first, mdp_super_t *second);*/ |
500 | extern unsigned long calc_csum(void *super, int bytes); | |
583315d9 | 501 | extern int enough(int level, int raid_disks, int layout, int clean, |
265e0f17 | 502 | char *avail, int avail_disks); |
e0d19036 | 503 | extern int ask(char *mesg); |
8fac0577 | 504 | extern unsigned long long get_component_size(int fd); |
0430ed48 | 505 | extern void remove_partitions(int fd); |
e0d19036 | 506 | |
cd29a5c8 | 507 | |
56eb10c0 | 508 | extern char *human_size(long long bytes); |
e0d19036 NB |
509 | char *human_size_brief(long long bytes); |
510 | ||
511 | extern void put_md_name(char *name); | |
512 | extern char *get_md_name(int dev); | |
513 | ||
c913b90e | 514 | extern char DefaultConfFile[]; |
b5e64645 NB |
515 | |
516 | extern int open_mddev(char *dev, int autof); | |
8382f19b NB |
517 | extern int open_mddev_devnum(char *devname, int devnum, char *name, |
518 | char *chosen_name); | |
b5e64645 NB |
519 | |
520 | ||
521 | #define LEVEL_MULTIPATH (-4) | |
522 | #define LEVEL_LINEAR (-1) | |
523 | #define LEVEL_FAULTY (-5) | |
524 | ||
525 | ||
526 | /* faulty stuff */ | |
527 | ||
528 | #define WriteTransient 0 | |
529 | #define ReadTransient 1 | |
530 | #define WritePersistent 2 | |
531 | #define ReadPersistent 3 | |
532 | #define WriteAll 4 /* doesn't go to device */ | |
533 | #define ReadFixable 5 | |
534 | #define Modes 6 | |
535 | ||
536 | #define ClearErrors 31 | |
537 | #define ClearFaults 30 | |
538 | ||
539 | #define AllPersist 100 /* internal use only */ | |
540 | #define NoPersist 101 | |
541 | ||
542 | #define ModeMask 0x1f | |
543 | #define ModeShift 5 | |
fe6729fa NB |
544 | |
545 | ||
546 | #ifdef __TINYC__ | |
547 | #undef minor | |
548 | #undef major | |
549 | #undef makedev | |
550 | #define minor(x) ((x)&0xff) | |
551 | #define major(x) (((x)>>8)&0xff) | |
552 | #define makedev(M,m) (((M)<<8) | (m)) | |
553 | #endif | |
554 | ||
e86c9dd6 NB |
555 | /* for raid5 */ |
556 | #define ALGORITHM_LEFT_ASYMMETRIC 0 | |
557 | #define ALGORITHM_RIGHT_ASYMMETRIC 1 | |
558 | #define ALGORITHM_LEFT_SYMMETRIC 2 | |
559 | #define ALGORITHM_RIGHT_SYMMETRIC 3 |