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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 |
c2c9bb6f | 31 | #define _FILE_OFFSET_BITS 64 |
64c4757e | 32 | #include <unistd.h> |
e39b673e | 33 | #if !defined(__dietlibc__) && !defined(__KLIBC__) |
64c4757e | 34 | extern __off64_t lseek64 __P ((int __fd, __off64_t __offset, int __whence)); |
f783ca4f | 35 | #else |
fffdbe5e | 36 | # if defined(__NO_STAT64) || __WORDSIZE != 32 |
f783ca4f NB |
37 | # define lseek64 lseek |
38 | # endif | |
98c6faba | 39 | #endif |
64c4757e NB |
40 | |
41 | #include <sys/types.h> | |
42 | #include <sys/stat.h> | |
43 | #include <stdlib.h> | |
44 | #include <time.h> | |
11018a45 | 45 | #include <sys/time.h> |
64c4757e NB |
46 | #include <getopt.h> |
47 | #include <fcntl.h> | |
48 | #include <stdio.h> | |
49 | #include <errno.h> | |
50 | #include <string.h> | |
773135f5 | 51 | #include <syslog.h> |
b56c3630 NB |
52 | #ifdef __dietlibc__ |
53 | #include <strings.h> | |
280a927d NB |
54 | /* dietlibc has deprecated random and srandom!! */ |
55 | #define random rand | |
56 | #define srandom srand | |
98c6faba NB |
57 | #endif |
58 | ||
64c4757e NB |
59 | |
60 | #include <linux/kdev_t.h> | |
e0d19036 NB |
61 | /*#include <linux/fs.h> */ |
62 | #include <sys/mount.h> | |
63 | #include <asm/types.h> | |
64c4757e NB |
64 | #include <sys/ioctl.h> |
65 | #define MD_MAJOR 9 | |
dd0781e5 | 66 | #define MdpMinorShift 6 |
64c4757e | 67 | |
e0d19036 | 68 | #ifndef BLKGETSIZE64 |
98c6faba | 69 | #define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 *arg) */ |
e0d19036 | 70 | #endif |
56eb10c0 | 71 | |
c82f047c NB |
72 | #define DEFAULT_BITMAP_CHUNK 4096 |
73 | #define DEFAULT_BITMAP_DELAY 5 | |
dfd4d8ee | 74 | #define DEFAULT_MAX_WRITE_BEHIND 256 |
64c4757e NB |
75 | |
76 | #include "md_u.h" | |
e0d19036 | 77 | #include "md_p.h" |
c82f047c | 78 | #include "bitmap.h" |
64c4757e | 79 | |
1e0d770c | 80 | #include <endian.h> |
efd441d1 NB |
81 | /* Redhat don't like to #include <asm/byteorder.h>, and |
82 | * some time include <linux/byteorder/xxx_endian.h> isn't enough, | |
83 | * and there is no standard conversion function so... */ | |
0ae03b8a NB |
84 | /* And dietlibc doesn't think byteswap is ok, so.. */ |
85 | /* #include <byteswap.h> */ | |
86 | #define bswap_16(x) (((x) & 0x00ffU) << 8 | \ | |
87 | ((x) & 0xff00U) >> 8) | |
88 | #define bswap_32(x) (((x) & 0x000000ffU) << 24 | \ | |
89 | ((x) & 0xff000000U) >> 24 | \ | |
90 | ((x) & 0x0000ff00U) << 8 | \ | |
91 | ((x) & 0x00ff0000U) >> 8) | |
92 | #define bswap_64(x) (((x) & 0x00000000000000ffULL) << 56 | \ | |
93 | ((x) & 0xff00000000000000ULL) >> 56 | \ | |
94 | ((x) & 0x000000000000ff00ULL) << 40 | \ | |
95 | ((x) & 0x00ff000000000000ULL) >> 40 | \ | |
96 | ((x) & 0x0000000000ff0000ULL) << 24 | \ | |
97 | ((x) & 0x0000ff0000000000ULL) >> 24 | \ | |
98 | ((x) & 0x00000000ff000000ULL) << 8 | \ | |
99 | ((x) & 0x000000ff00000000ULL) >> 8) | |
100 | ||
e39b673e | 101 | #if !defined(__KLIBC__) |
efd441d1 NB |
102 | #if BYTE_ORDER == LITTLE_ENDIAN |
103 | #define __cpu_to_le16(_x) (_x) | |
104 | #define __cpu_to_le32(_x) (_x) | |
105 | #define __cpu_to_le64(_x) (_x) | |
106 | #define __le16_to_cpu(_x) (_x) | |
107 | #define __le32_to_cpu(_x) (_x) | |
108 | #define __le64_to_cpu(_x) (_x) | |
974e620d NB |
109 | |
110 | #define __cpu_to_be16(_x) bswap_16(_x) | |
111 | #define __cpu_to_be32(_x) bswap_32(_x) | |
112 | #define __cpu_to_be64(_x) bswap_64(_x) | |
113 | #define __be16_to_cpu(_x) bswap_16(_x) | |
114 | #define __be32_to_cpu(_x) bswap_32(_x) | |
115 | #define __be64_to_cpu(_x) bswap_64(_x) | |
efd441d1 NB |
116 | #elif BYTE_ORDER == BIG_ENDIAN |
117 | #define __cpu_to_le16(_x) bswap_16(_x) | |
118 | #define __cpu_to_le32(_x) bswap_32(_x) | |
119 | #define __cpu_to_le64(_x) bswap_64(_x) | |
120 | #define __le16_to_cpu(_x) bswap_16(_x) | |
121 | #define __le32_to_cpu(_x) bswap_32(_x) | |
122 | #define __le64_to_cpu(_x) bswap_64(_x) | |
974e620d NB |
123 | |
124 | #define __cpu_to_be16(_x) (_x) | |
125 | #define __cpu_to_be32(_x) (_x) | |
126 | #define __cpu_to_be64(_x) (_x) | |
127 | #define __be16_to_cpu(_x) (_x) | |
128 | #define __be32_to_cpu(_x) (_x) | |
129 | #define __be64_to_cpu(_x) (_x) | |
1e0d770c NB |
130 | #else |
131 | # error "unknown endianness." | |
132 | #endif | |
e39b673e | 133 | #endif /* __KLIBC__ */ |
1e0d770c NB |
134 | |
135 | ||
136 | ||
4b1ac34b NB |
137 | /* general information that might be extracted from a superblock */ |
138 | struct mdinfo { | |
139 | mdu_array_info_t array; | |
140 | mdu_disk_info_t disk; | |
141 | __u64 events; | |
fbf8a0b7 | 142 | int uuid[4]; |
31317663 | 143 | char name[33]; |
353632d9 | 144 | unsigned long long data_offset; |
598f0d58 NB |
145 | unsigned long long component_size; /* same as array.size, except in |
146 | * sectors and up to 64bits. | |
147 | */ | |
353632d9 NB |
148 | int reshape_active; |
149 | unsigned long long reshape_progress; | |
150 | int new_level, delta_disks, new_layout, new_chunk; | |
06c7f68e | 151 | int errors; |
7e0f6979 NB |
152 | int cache_size; /* size of raid456 stripe cache*/ |
153 | int mismatch_cnt; | |
154 | char text_version[50]; | |
5f2aace8 | 155 | int container_member; /* for assembling external-metatdata arrays */ |
06c7f68e NB |
156 | |
157 | char sys_name[20]; | |
7e0f6979 | 158 | struct mdinfo *devs; |
06c7f68e | 159 | struct mdinfo *next; |
4b1ac34b NB |
160 | }; |
161 | ||
5bbb4842 NB |
162 | struct createinfo { |
163 | int uid; | |
164 | int gid; | |
165 | int autof; | |
166 | int mode; | |
38098016 | 167 | int symlinks; |
058574b1 | 168 | struct supertype *supertype; |
5bbb4842 NB |
169 | }; |
170 | ||
9a9dab36 | 171 | #define Name "mdadm" |
682c7051 | 172 | |
e0d19036 NB |
173 | enum mode { |
174 | ASSEMBLE=1, | |
175 | BUILD, | |
176 | CREATE, | |
177 | MANAGE, | |
178 | MISC, | |
179 | MONITOR, | |
dd0781e5 | 180 | GROW, |
8382f19b | 181 | INCREMENTAL, |
1f48664b | 182 | AUTODETECT, |
e0d19036 NB |
183 | }; |
184 | ||
64c4757e | 185 | extern char short_options[]; |
024768c4 | 186 | extern char short_bitmap_options[]; |
c06487ce | 187 | extern char short_bitmap_auto_options[]; |
64c4757e | 188 | extern struct option long_options[]; |
56eedc1a | 189 | extern char Version[], Usage[], Help[], OptionHelp[], |
dd0781e5 | 190 | Help_create[], Help_build[], Help_assemble[], Help_grow[], |
8382f19b | 191 | Help_incr[], |
e0d19036 | 192 | Help_manage[], Help_misc[], Help_monitor[], Help_config[]; |
64c4757e | 193 | |
997aed5d NB |
194 | /* for option that don't have short equivilents, we assign arbitrary |
195 | * small numbers. '1' means an undecorated option, so we start at '2'. | |
196 | */ | |
197 | enum special_options { | |
198 | AssumeClean = 2, | |
199 | BitmapChunk, | |
200 | WriteBehind, | |
201 | ReAdd, | |
202 | NoDegraded, | |
203 | Sparc22, | |
204 | BackupFile, | |
205 | HomeHost, | |
589395d6 | 206 | AutoHomeHost, |
38098016 | 207 | Symlinks, |
1f48664b | 208 | AutoDetect, |
997aed5d NB |
209 | }; |
210 | ||
64c4757e | 211 | /* structures read from config file */ |
52826846 NB |
212 | /* List of mddevice names and identifiers |
213 | * Identifiers can be: | |
214 | * uuid=128-hex-uuid | |
215 | * super-minor=decimal-minor-number-from-superblock | |
216 | * devices=comma,separated,list,of,device,names,with,wildcards | |
217 | * | |
218 | * If multiple fields are present, the intersection of all matching | |
219 | * devices is considered | |
220 | */ | |
98c6faba | 221 | #define UnSet (0xfffe) |
52826846 | 222 | typedef struct mddev_ident_s { |
dd0781e5 | 223 | char *devname; |
aba69144 | 224 | |
dd0781e5 | 225 | int uuid_set; |
3fa06e9d | 226 | int uuid[4]; |
947fd4dd | 227 | char name[33]; |
52826846 | 228 | |
98c6faba | 229 | unsigned int super_minor; |
52826846 | 230 | |
dd0781e5 | 231 | char *devices; /* comma separated list of device |
52826846 NB |
232 | * names with wild cards |
233 | */ | |
dd0781e5 | 234 | int level; |
98c6faba NB |
235 | unsigned int raid_disks; |
236 | unsigned int spare_disks; | |
82d9eba6 | 237 | struct supertype *st; |
dd0781e5 NB |
238 | int autof; /* 1 for normal, 2 for partitioned */ |
239 | char *spare_group; | |
7ef02d01 | 240 | char *bitmap_file; |
c82f047c | 241 | int bitmap_fd; |
dd0781e5 | 242 | |
52826846 NB |
243 | struct mddev_ident_s *next; |
244 | } *mddev_ident_t; | |
64c4757e NB |
245 | |
246 | /* List of device names - wildcards expanded */ | |
247 | typedef struct mddev_dev_s { | |
248 | char *devname; | |
cd29a5c8 NB |
249 | char disposition; /* 'a' for add, 'r' for remove, 'f' for fail. |
250 | * Not set for names read from .config | |
251 | */ | |
dfd4d8ee | 252 | char writemostly; |
fe80f49b | 253 | char re_add; |
811e6cbe | 254 | char used; /* set when used */ |
64c4757e NB |
255 | struct mddev_dev_s *next; |
256 | } *mddev_dev_t; | |
257 | ||
682c7051 NB |
258 | typedef struct mapping { |
259 | char *name; | |
260 | int num; | |
261 | } mapping_t; | |
262 | ||
e0d19036 NB |
263 | |
264 | struct mdstat_ent { | |
265 | char *dev; | |
266 | int devnum; | |
267 | int active; | |
268 | char *level; | |
269 | char *pattern; /* U or up, _ for down */ | |
270 | int percent; /* -1 if no resync */ | |
e5329c37 | 271 | int resync; /* 1 if resync, 0 if recovery */ |
e0d19036 NB |
272 | struct mdstat_ent *next; |
273 | }; | |
274 | ||
22a88995 | 275 | extern struct mdstat_ent *mdstat_read(int hold, int start); |
e0d19036 | 276 | extern void free_mdstat(struct mdstat_ent *ms); |
dd0781e5 | 277 | extern void mdstat_wait(int seconds); |
8382f19b NB |
278 | extern int mddev_busy(int devnum); |
279 | ||
280 | struct map_ent { | |
281 | struct map_ent *next; | |
282 | int devnum; | |
283 | int major,minor; | |
284 | int uuid[4]; | |
285 | char *path; | |
286 | }; | |
287 | extern int map_update(struct map_ent **mpp, int devnum, int major, int minor, | |
288 | int uuid[4], char *path); | |
289 | extern struct map_ent *map_by_uuid(struct map_ent **map, int uuid[4]); | |
290 | extern void map_read(struct map_ent **melp); | |
291 | extern int map_write(struct map_ent *mel); | |
292 | extern void map_delete(struct map_ent **mapp, int devnum); | |
293 | extern void map_free(struct map_ent *map); | |
294 | extern void map_add(struct map_ent **melp, | |
295 | int devnum, int major, int minor, int uuid[4], char *path); | |
e0d19036 | 296 | |
e86c9dd6 NB |
297 | /* various details can be requested */ |
298 | #define GET_LEVEL 1 | |
299 | #define GET_LAYOUT 2 | |
300 | #define GET_COMPONENT 4 | |
301 | #define GET_CHUNK 8 | |
758d3a8e | 302 | #define GET_CACHE 16 |
37dfc3d6 | 303 | #define GET_MISMATCH 32 |
8382f19b | 304 | #define GET_VERSION 64 |
e86c9dd6 NB |
305 | |
306 | #define GET_DEVS 1024 /* gets role, major, minor */ | |
307 | #define GET_OFFSET 2048 | |
308 | #define GET_SIZE 4096 | |
309 | #define GET_STATE 8192 | |
310 | #define GET_ERROR 16384 | |
311 | ||
312 | /* If fd >= 0, get the array it is open on, | |
313 | * else use devnum. >=0 -> major9. <0..... | |
314 | */ | |
7e0f6979 NB |
315 | extern void sysfs_free(struct mdinfo *sra); |
316 | extern struct mdinfo *sysfs_read(int fd, int devnum, unsigned long options); | |
317 | extern int sysfs_set_str(struct mdinfo *sra, struct mdinfo *dev, | |
e86c9dd6 | 318 | char *name, char *val); |
7e0f6979 | 319 | extern int sysfs_set_num(struct mdinfo *sra, struct mdinfo *dev, |
e86c9dd6 | 320 | char *name, unsigned long long val); |
7e0f6979 | 321 | extern int sysfs_get_ll(struct mdinfo *sra, struct mdinfo *dev, |
e86c9dd6 | 322 | char *name, unsigned long long *val); |
2503d23b | 323 | extern int sysfs_set_array(struct mdinfo *sra, |
598f0d58 | 324 | struct mdinfo *info); |
2503d23b NB |
325 | extern int sysfs_add_disk(struct mdinfo *sra, int fd, struct mdinfo *sd); |
326 | ||
327 | ||
e86c9dd6 NB |
328 | |
329 | ||
330 | extern int save_stripes(int *source, unsigned long long *offsets, | |
331 | int raid_disks, int chunk_size, int level, int layout, | |
332 | int nwrites, int *dest, | |
333 | unsigned long long start, unsigned long long length); | |
353632d9 NB |
334 | extern int restore_stripes(int *dest, unsigned long long *offsets, |
335 | int raid_disks, int chunk_size, int level, int layout, | |
336 | int source, unsigned long long read_offset, | |
337 | unsigned long long start, unsigned long long length); | |
e86c9dd6 | 338 | |
52826846 NB |
339 | #ifndef Sendmail |
340 | #define Sendmail "/usr/lib/sendmail -t" | |
341 | #endif | |
342 | ||
773135f5 NB |
343 | #define SYSLOG_FACILITY LOG_DAEMON |
344 | ||
682c7051 NB |
345 | extern char *map_num(mapping_t *map, int num); |
346 | extern int map_name(mapping_t *map, char *name); | |
b5e64645 | 347 | extern mapping_t r5layout[], pers[], modes[], faultylayout[]; |
682c7051 | 348 | |
16c6fa80 | 349 | extern char *map_dev(int major, int minor, int create); |
64c4757e NB |
350 | |
351 | ||
f9ce90ba | 352 | extern struct superswitch { |
3da92f27 NB |
353 | void (*examine_super)(struct supertype *st, char *homehost); |
354 | void (*brief_examine_super)(struct supertype *st); | |
0d726f17 | 355 | void (*export_examine_super)(struct supertype *st); |
3da92f27 | 356 | void (*detail_super)(struct supertype *st, char *homehost); |
3da92f27 | 357 | void (*brief_detail_super)(struct supertype *st); |
0d726f17 | 358 | void (*export_detail_super)(struct supertype *st); |
3da92f27 NB |
359 | void (*uuid_from_super)(struct supertype *st, int uuid[4]); |
360 | void (*getinfo_super)(struct supertype *st, struct mdinfo *info); | |
598f0d58 | 361 | void (*getinfo_super_n)(struct supertype *st, struct mdinfo *info); |
3da92f27 | 362 | int (*match_home)(struct supertype *st, char *homehost); |
68c7d6d7 | 363 | int (*update_super)(struct supertype *st, struct mdinfo *info, |
3da92f27 | 364 | char *update, |
e5eac01f NB |
365 | char *devname, int verbose, |
366 | int uuid_set, char *homehost); | |
3da92f27 NB |
367 | int (*init_super)(struct supertype *st, mdu_array_info_t *info, |
368 | unsigned long long size, char *name, | |
369 | char *homehost, int *uuid); | |
111d01fc NB |
370 | void (*add_to_super)(struct supertype *st, mdu_disk_info_t *dinfo, |
371 | int fd, char *devname); | |
3da92f27 | 372 | int (*store_super)(struct supertype *st, int fd); |
111d01fc | 373 | int (*write_init_super)(struct supertype *st); |
64557c33 | 374 | int (*compare_super)(struct supertype *st, struct supertype *tst); |
3da92f27 | 375 | int (*load_super)(struct supertype *st, int fd, char *devname); |
82d9eba6 | 376 | struct supertype * (*match_metadata_desc)(char *arg); |
1bf4e2d9 | 377 | __u64 (*avail_size)(struct supertype *st, __u64 size); |
3da92f27 | 378 | int (*add_internal_bitmap)(struct supertype *st, int *chunkp, |
199171a2 | 379 | int delay, int write_behind, |
f9c25f1d | 380 | unsigned long long size, int may_change, int major); |
3da92f27 NB |
381 | void (*locate_bitmap)(struct supertype *st, int fd); |
382 | int (*write_bitmap)(struct supertype *st, int fd); | |
383 | void (*free_super)(struct supertype *st); | |
17f25ca6 NB |
384 | int (*validate_geometry)(struct supertype *st, int level, int layout, |
385 | int raiddisks, | |
386 | int chunk, unsigned long long size, | |
387 | char *subdev, unsigned long long *freesize); | |
598f0d58 NB |
388 | |
389 | struct mdinfo *(*container_content)(struct supertype *st); | |
390 | ||
82d9eba6 | 391 | int major; |
d03373f1 | 392 | char *text_version; |
f277ce36 | 393 | int swapuuid; /* true if uuid is bigending rather than hostendian */ |
d03373f1 | 394 | int external; |
a322f70c | 395 | } super0, super1, super_ddf, super_ddf_bvd, super_ddf_svd, *superlist[]; |
82d9eba6 | 396 | |
cdddbdbc DW |
397 | extern struct superswitch super_imsm, super_imsm_raid; |
398 | ||
82d9eba6 NB |
399 | struct supertype { |
400 | struct superswitch *ss; | |
401 | int minor_version; | |
ea329559 | 402 | int max_devs; |
2f6079dc NB |
403 | int container_dev; /* devnum of container */ |
404 | int container_member; /* numerical position in container */ | |
64557c33 | 405 | void *sb; |
111d01fc | 406 | void *info; |
82d9eba6 | 407 | }; |
f9ce90ba | 408 | |
1686dc25 | 409 | extern struct supertype *super_by_fd(int fd); |
82d9eba6 | 410 | extern struct supertype *guess_super(int fd); |
3da92f27 | 411 | extern struct supertype *dup_super(struct supertype *st); |
beae1dfe | 412 | extern int get_dev_size(int fd, char *dname, unsigned long long *sizep); |
8382f19b NB |
413 | extern void get_one_disk(int mdfd, mdu_array_info_t *ainf, |
414 | mdu_disk_info_t *disk); | |
f9ce90ba | 415 | |
838acbc2 NB |
416 | #if __GNUC__ < 3 |
417 | struct stat64; | |
418 | #endif | |
419 | ||
45e878bb NB |
420 | #define HAVE_NFTW we assume |
421 | #define HAVE_FTW | |
422 | ||
173fc515 | 423 | #ifdef UCLIBC |
45e878bb NB |
424 | # include <features.h> |
425 | # ifndef __UCLIBC_HAS_FTW__ | |
426 | # undef HAVE_FTW | |
427 | # undef HAVE_NFTW | |
428 | # endif | |
429 | #endif | |
430 | ||
431 | #ifdef __dietlibc__ | |
432 | # undef HAVE_NFTW | |
433 | #endif | |
434 | ||
e39b673e | 435 | #if defined(__KLIBC__) |
436 | # undef HAVE_NFTW | |
437 | # undef HAVE_FTW | |
438 | #endif | |
439 | ||
45e878bb | 440 | #ifndef HAVE_NFTW |
173fc515 | 441 | # define FTW_PHYS 1 |
45e878bb NB |
442 | # ifndef HAVE_FTW |
443 | struct FTW {}; | |
173fc515 NB |
444 | # endif |
445 | #endif | |
446 | ||
45e878bb NB |
447 | #ifdef HAVE_FTW |
448 | # include <ftw.h> | |
449 | #endif | |
450 | ||
173fc515 NB |
451 | extern int add_dev(const char *name, const struct stat *stb, int flag, struct FTW *s); |
452 | ||
f9ce90ba | 453 | |
64c4757e | 454 | extern int Manage_ro(char *devname, int fd, int readonly); |
91f068bf | 455 | extern int Manage_runstop(char *devname, int fd, int runstop, int quiet); |
dd0781e5 | 456 | extern int Manage_resize(char *devname, int fd, long long size, int raid_disks); |
b5e64645 | 457 | extern int Manage_reconfig(char *devname, int fd, int layout); |
64c4757e | 458 | extern int Manage_subdevs(char *devname, int fd, |
dab6685f | 459 | mddev_dev_t devlist, int verbose); |
1f48664b | 460 | extern int autodetect(void); |
e5329c37 | 461 | extern int Grow_Add_device(char *devname, int fd, char *newdev); |
8fac0577 | 462 | extern int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int write_behind, int force); |
06b0d786 | 463 | extern int Grow_reshape(char *devname, int fd, int quiet, char *backup_file, |
e86c9dd6 NB |
464 | long long size, |
465 | int level, int layout, int chunksize, int raid_disks); | |
06b0d786 NB |
466 | extern int Grow_restart(struct supertype *st, struct mdinfo *info, |
467 | int *fdlist, int cnt, char *backup_file); | |
64c4757e NB |
468 | |
469 | ||
82d9eba6 | 470 | extern int Assemble(struct supertype *st, char *mddev, int mdfd, |
52826846 | 471 | mddev_ident_t ident, |
06b0d786 | 472 | mddev_dev_t devlist, char *backup_file, |
64c4757e | 473 | int readonly, int runstop, |
e5eac01f | 474 | char *update, char *homehost, |
64c4757e NB |
475 | int verbose, int force); |
476 | ||
b5e64645 | 477 | extern int Build(char *mddev, int mdfd, int chunk, int level, int layout, |
64c4757e | 478 | int raiddisks, |
c82f047c | 479 | mddev_dev_t devlist, int assume_clean, |
dab6685f | 480 | char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int verbose); |
64c4757e NB |
481 | |
482 | ||
82d9eba6 | 483 | extern int Create(struct supertype *st, char *mddev, int mdfd, |
5dd497ee | 484 | int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks, |
3d3dd91e | 485 | char *name, char *homehost, int *uuid, |
cd29a5c8 | 486 | int subdevs, mddev_dev_t devlist, |
47d79ef8 | 487 | int runstop, int verbose, int force, int assume_clean, |
dfd4d8ee | 488 | char *bitmap_file, int bitmap_chunk, int write_behind, int delay); |
64c4757e | 489 | |
54bad364 | 490 | extern int Detail(char *dev, int brief, int export, int test, char *homehost); |
e0d19036 | 491 | extern int Query(char *dev); |
0d726f17 KS |
492 | extern int Examine(mddev_dev_t devlist, int brief, int export, int scan, |
493 | int SparcAdjust, struct supertype *forcest, char *homehost); | |
cd29a5c8 | 494 | extern int Monitor(mddev_dev_t devlist, |
e0d19036 | 495 | char *mailaddr, char *alert_cmd, |
aa88f531 | 496 | int period, int daemonise, int scan, int oneshot, |
8aec876d | 497 | int dosyslog, int test, char *pidfile); |
64c4757e | 498 | |
111d01fc | 499 | extern int Kill(char *dev, int force, int quiet, int noexcl); |
b90c0e9a | 500 | extern int Wait(char *dev); |
9a9dab36 | 501 | |
8382f19b NB |
502 | extern int Incremental(char *devname, int verbose, int runstop, |
503 | struct supertype *st, char *homehost, int autof); | |
598f0d58 NB |
504 | extern int Incremental_container(struct supertype *st, char *devname, |
505 | int verbose, int runstop, int autof); | |
8382f19b NB |
506 | extern void RebuildMap(void); |
507 | extern int IncrementalScan(int verbose); | |
508 | ||
c82f047c NB |
509 | extern int CreateBitmap(char *filename, int force, char uuid[16], |
510 | unsigned long chunksize, unsigned long daemon_sleep, | |
dfd4d8ee | 511 | unsigned long write_behind, |
dcec9ee5 NB |
512 | unsigned long long array_size, |
513 | int major); | |
55935d51 | 514 | extern int ExamineBitmap(char *filename, int brief, struct supertype *st); |
bf4fb153 | 515 | extern int bitmap_update_uuid(int fd, int *uuid, int swap); |
c82f047c | 516 | |
64c4757e | 517 | extern int md_get_version(int fd); |
e0d19036 | 518 | extern int get_linux_version(void); |
64c4757e | 519 | extern int parse_uuid(char *str, int uuid[4]); |
682c7051 NB |
520 | extern int check_ext2(int fd, char *name); |
521 | extern int check_reiser(int fd, char *name); | |
522 | extern int check_raid(int fd, char *name); | |
64c4757e | 523 | |
dd0781e5 | 524 | extern int get_mdp_major(void); |
8b0dabea | 525 | extern int dev_open(char *dev, int flags); |
8d80900b | 526 | extern int is_standard(char *dev, int *nump); |
dd0781e5 | 527 | |
f1ae21c4 | 528 | extern int parse_auto(char *str, char *msg, int config); |
8aec876d NB |
529 | extern mddev_ident_t conf_get_ident(char *dev); |
530 | extern mddev_dev_t conf_get_devs(void); | |
8382f19b | 531 | extern int conf_test_dev(char *devname); |
8aec876d NB |
532 | extern struct createinfo *conf_get_create_info(void); |
533 | extern void set_conffile(char *file); | |
534 | extern char *conf_get_mailaddr(void); | |
535 | extern char *conf_get_mailfrom(void); | |
536 | extern char *conf_get_program(void); | |
537 | extern char *conf_get_homehost(void); | |
e0d19036 | 538 | extern char *conf_line(FILE *file); |
98c6faba | 539 | extern char *conf_word(FILE *file, int allow_key); |
e0d19036 NB |
540 | extern void free_line(char *line); |
541 | extern int match_oneof(char *devices, char *devname); | |
e0d19036 | 542 | extern void uuid_from_super(int uuid[4], mdp_super_t *super); |
f277ce36 | 543 | extern int same_uuid(int a[4], int b[4], int swapuuid); |
350f29f9 | 544 | extern void copy_uuid(void *a, int b[4], int swapuuid); |
4b1ac34b | 545 | extern unsigned long calc_csum(void *super, int bytes); |
583315d9 | 546 | extern int enough(int level, int raid_disks, int layout, int clean, |
265e0f17 | 547 | char *avail, int avail_disks); |
e0d19036 | 548 | extern int ask(char *mesg); |
8fac0577 | 549 | extern unsigned long long get_component_size(int fd); |
0430ed48 | 550 | extern void remove_partitions(int fd); |
5f8097be NB |
551 | extern unsigned long long calc_array_size(int level, int raid_disks, int layout, |
552 | int chunksize, unsigned long long devsize); | |
e0d19036 | 553 | |
cd29a5c8 | 554 | |
56eb10c0 | 555 | extern char *human_size(long long bytes); |
e0d19036 NB |
556 | char *human_size_brief(long long bytes); |
557 | ||
63152c1b NB |
558 | #define NoMdDev (1<<23) |
559 | extern int find_free_devnum(int use_partitions); | |
560 | ||
e0d19036 NB |
561 | extern void put_md_name(char *name); |
562 | extern char *get_md_name(int dev); | |
563 | ||
c913b90e | 564 | extern char DefaultConfFile[]; |
b5e64645 NB |
565 | |
566 | extern int open_mddev(char *dev, int autof); | |
8382f19b | 567 | extern int open_mddev_devnum(char *devname, int devnum, char *name, |
9a02c62a | 568 | char *chosen_name, int parts); |
a322f70c | 569 | extern int open_container(int fd); |
b5e64645 | 570 | |
2f6079dc NB |
571 | extern char *devnum2devname(int num); |
572 | extern int fd2devnum(int fd); | |
b5e64645 NB |
573 | |
574 | #define LEVEL_MULTIPATH (-4) | |
575 | #define LEVEL_LINEAR (-1) | |
576 | #define LEVEL_FAULTY (-5) | |
577 | ||
17f25ca6 NB |
578 | /* kernel module doesn't know about these */ |
579 | #define LEVEL_CONTAINER (-100) | |
a322f70c | 580 | #define LEVEL_UNSUPPORTED (-200) |
17f25ca6 | 581 | |
b5e64645 NB |
582 | |
583 | /* faulty stuff */ | |
584 | ||
585 | #define WriteTransient 0 | |
586 | #define ReadTransient 1 | |
587 | #define WritePersistent 2 | |
588 | #define ReadPersistent 3 | |
589 | #define WriteAll 4 /* doesn't go to device */ | |
590 | #define ReadFixable 5 | |
591 | #define Modes 6 | |
592 | ||
593 | #define ClearErrors 31 | |
594 | #define ClearFaults 30 | |
595 | ||
596 | #define AllPersist 100 /* internal use only */ | |
597 | #define NoPersist 101 | |
598 | ||
599 | #define ModeMask 0x1f | |
600 | #define ModeShift 5 | |
fe6729fa NB |
601 | |
602 | ||
603 | #ifdef __TINYC__ | |
604 | #undef minor | |
605 | #undef major | |
606 | #undef makedev | |
607 | #define minor(x) ((x)&0xff) | |
608 | #define major(x) (((x)>>8)&0xff) | |
609 | #define makedev(M,m) (((M)<<8) | (m)) | |
610 | #endif | |
611 | ||
e86c9dd6 NB |
612 | /* for raid5 */ |
613 | #define ALGORITHM_LEFT_ASYMMETRIC 0 | |
614 | #define ALGORITHM_RIGHT_ASYMMETRIC 1 | |
615 | #define ALGORITHM_LEFT_SYMMETRIC 2 | |
616 | #define ALGORITHM_RIGHT_SYMMETRIC 3 |