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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) | |
109 | #elif BYTE_ORDER == BIG_ENDIAN | |
110 | #define __cpu_to_le16(_x) bswap_16(_x) | |
111 | #define __cpu_to_le32(_x) bswap_32(_x) | |
112 | #define __cpu_to_le64(_x) bswap_64(_x) | |
113 | #define __le16_to_cpu(_x) bswap_16(_x) | |
114 | #define __le32_to_cpu(_x) bswap_32(_x) | |
115 | #define __le64_to_cpu(_x) bswap_64(_x) | |
1e0d770c NB |
116 | #else |
117 | # error "unknown endianness." | |
118 | #endif | |
e39b673e | 119 | #endif /* __KLIBC__ */ |
1e0d770c NB |
120 | |
121 | ||
122 | ||
4b1ac34b NB |
123 | /* general information that might be extracted from a superblock */ |
124 | struct mdinfo { | |
125 | mdu_array_info_t array; | |
126 | mdu_disk_info_t disk; | |
127 | __u64 events; | |
fbf8a0b7 | 128 | int uuid[4]; |
31317663 | 129 | char name[33]; |
353632d9 NB |
130 | unsigned long long data_offset; |
131 | unsigned long long component_size; | |
132 | int reshape_active; | |
133 | unsigned long long reshape_progress; | |
134 | int new_level, delta_disks, new_layout, new_chunk; | |
06c7f68e | 135 | int errors; |
7e0f6979 NB |
136 | int cache_size; /* size of raid456 stripe cache*/ |
137 | int mismatch_cnt; | |
138 | char text_version[50]; | |
06c7f68e NB |
139 | |
140 | char sys_name[20]; | |
7e0f6979 | 141 | struct mdinfo *devs; |
06c7f68e | 142 | struct mdinfo *next; |
4b1ac34b NB |
143 | }; |
144 | ||
5bbb4842 NB |
145 | struct createinfo { |
146 | int uid; | |
147 | int gid; | |
148 | int autof; | |
149 | int mode; | |
38098016 | 150 | int symlinks; |
058574b1 | 151 | struct supertype *supertype; |
5bbb4842 NB |
152 | }; |
153 | ||
9a9dab36 | 154 | #define Name "mdadm" |
682c7051 | 155 | |
e0d19036 NB |
156 | enum mode { |
157 | ASSEMBLE=1, | |
158 | BUILD, | |
159 | CREATE, | |
160 | MANAGE, | |
161 | MISC, | |
162 | MONITOR, | |
dd0781e5 | 163 | GROW, |
8382f19b | 164 | INCREMENTAL, |
1f48664b | 165 | AUTODETECT, |
e0d19036 NB |
166 | }; |
167 | ||
64c4757e | 168 | extern char short_options[]; |
024768c4 | 169 | extern char short_bitmap_options[]; |
c06487ce | 170 | extern char short_bitmap_auto_options[]; |
64c4757e | 171 | extern struct option long_options[]; |
56eedc1a | 172 | extern char Version[], Usage[], Help[], OptionHelp[], |
dd0781e5 | 173 | Help_create[], Help_build[], Help_assemble[], Help_grow[], |
8382f19b | 174 | Help_incr[], |
e0d19036 | 175 | Help_manage[], Help_misc[], Help_monitor[], Help_config[]; |
64c4757e | 176 | |
997aed5d NB |
177 | /* for option that don't have short equivilents, we assign arbitrary |
178 | * small numbers. '1' means an undecorated option, so we start at '2'. | |
179 | */ | |
180 | enum special_options { | |
181 | AssumeClean = 2, | |
182 | BitmapChunk, | |
183 | WriteBehind, | |
184 | ReAdd, | |
185 | NoDegraded, | |
186 | Sparc22, | |
187 | BackupFile, | |
188 | HomeHost, | |
589395d6 | 189 | AutoHomeHost, |
38098016 | 190 | Symlinks, |
1f48664b | 191 | AutoDetect, |
997aed5d NB |
192 | }; |
193 | ||
64c4757e | 194 | /* structures read from config file */ |
52826846 NB |
195 | /* List of mddevice names and identifiers |
196 | * Identifiers can be: | |
197 | * uuid=128-hex-uuid | |
198 | * super-minor=decimal-minor-number-from-superblock | |
199 | * devices=comma,separated,list,of,device,names,with,wildcards | |
200 | * | |
201 | * If multiple fields are present, the intersection of all matching | |
202 | * devices is considered | |
203 | */ | |
98c6faba | 204 | #define UnSet (0xfffe) |
52826846 | 205 | typedef struct mddev_ident_s { |
dd0781e5 | 206 | char *devname; |
aba69144 | 207 | |
dd0781e5 | 208 | int uuid_set; |
3fa06e9d | 209 | int uuid[4]; |
947fd4dd | 210 | char name[33]; |
52826846 | 211 | |
98c6faba | 212 | unsigned int super_minor; |
52826846 | 213 | |
dd0781e5 | 214 | char *devices; /* comma separated list of device |
52826846 NB |
215 | * names with wild cards |
216 | */ | |
dd0781e5 | 217 | int level; |
98c6faba NB |
218 | unsigned int raid_disks; |
219 | unsigned int spare_disks; | |
82d9eba6 | 220 | struct supertype *st; |
dd0781e5 NB |
221 | int autof; /* 1 for normal, 2 for partitioned */ |
222 | char *spare_group; | |
7ef02d01 | 223 | char *bitmap_file; |
c82f047c | 224 | int bitmap_fd; |
dd0781e5 | 225 | |
52826846 NB |
226 | struct mddev_ident_s *next; |
227 | } *mddev_ident_t; | |
64c4757e NB |
228 | |
229 | /* List of device names - wildcards expanded */ | |
230 | typedef struct mddev_dev_s { | |
231 | char *devname; | |
cd29a5c8 NB |
232 | char disposition; /* 'a' for add, 'r' for remove, 'f' for fail. |
233 | * Not set for names read from .config | |
234 | */ | |
b3d31955 | 235 | char writemostly; /* 1 for 'set writemostly', 2 for 'clear writemostly' */ |
fe80f49b | 236 | char re_add; |
811e6cbe | 237 | char used; /* set when used */ |
64c4757e NB |
238 | struct mddev_dev_s *next; |
239 | } *mddev_dev_t; | |
240 | ||
682c7051 NB |
241 | typedef struct mapping { |
242 | char *name; | |
243 | int num; | |
244 | } mapping_t; | |
245 | ||
e0d19036 NB |
246 | |
247 | struct mdstat_ent { | |
248 | char *dev; | |
249 | int devnum; | |
250 | int active; | |
251 | char *level; | |
252 | char *pattern; /* U or up, _ for down */ | |
253 | int percent; /* -1 if no resync */ | |
e5329c37 | 254 | int resync; /* 1 if resync, 0 if recovery */ |
e0d19036 NB |
255 | struct mdstat_ent *next; |
256 | }; | |
257 | ||
22a88995 | 258 | extern struct mdstat_ent *mdstat_read(int hold, int start); |
e0d19036 | 259 | extern void free_mdstat(struct mdstat_ent *ms); |
dd0781e5 | 260 | extern void mdstat_wait(int seconds); |
8382f19b NB |
261 | extern int mddev_busy(int devnum); |
262 | ||
263 | struct map_ent { | |
264 | struct map_ent *next; | |
265 | int devnum; | |
266 | int major,minor; | |
267 | int uuid[4]; | |
268 | char *path; | |
269 | }; | |
270 | extern int map_update(struct map_ent **mpp, int devnum, int major, int minor, | |
271 | int uuid[4], char *path); | |
272 | extern struct map_ent *map_by_uuid(struct map_ent **map, int uuid[4]); | |
273 | extern void map_read(struct map_ent **melp); | |
274 | extern int map_write(struct map_ent *mel); | |
275 | extern void map_delete(struct map_ent **mapp, int devnum); | |
276 | extern void map_free(struct map_ent *map); | |
277 | extern void map_add(struct map_ent **melp, | |
278 | int devnum, int major, int minor, int uuid[4], char *path); | |
e0d19036 | 279 | |
e86c9dd6 NB |
280 | /* various details can be requested */ |
281 | #define GET_LEVEL 1 | |
282 | #define GET_LAYOUT 2 | |
283 | #define GET_COMPONENT 4 | |
284 | #define GET_CHUNK 8 | |
758d3a8e | 285 | #define GET_CACHE 16 |
37dfc3d6 | 286 | #define GET_MISMATCH 32 |
8382f19b | 287 | #define GET_VERSION 64 |
e86c9dd6 NB |
288 | |
289 | #define GET_DEVS 1024 /* gets role, major, minor */ | |
290 | #define GET_OFFSET 2048 | |
291 | #define GET_SIZE 4096 | |
292 | #define GET_STATE 8192 | |
293 | #define GET_ERROR 16384 | |
294 | ||
295 | /* If fd >= 0, get the array it is open on, | |
296 | * else use devnum. >=0 -> major9. <0..... | |
297 | */ | |
7e0f6979 NB |
298 | extern void sysfs_free(struct mdinfo *sra); |
299 | extern struct mdinfo *sysfs_read(int fd, int devnum, unsigned long options); | |
300 | extern int sysfs_set_str(struct mdinfo *sra, struct mdinfo *dev, | |
e86c9dd6 | 301 | char *name, char *val); |
7e0f6979 | 302 | extern int sysfs_set_num(struct mdinfo *sra, struct mdinfo *dev, |
e86c9dd6 | 303 | char *name, unsigned long long val); |
7e0f6979 | 304 | extern int sysfs_get_ll(struct mdinfo *sra, struct mdinfo *dev, |
e86c9dd6 NB |
305 | char *name, unsigned long long *val); |
306 | ||
307 | ||
308 | extern int save_stripes(int *source, unsigned long long *offsets, | |
309 | int raid_disks, int chunk_size, int level, int layout, | |
310 | int nwrites, int *dest, | |
311 | unsigned long long start, unsigned long long length); | |
353632d9 NB |
312 | extern int restore_stripes(int *dest, unsigned long long *offsets, |
313 | int raid_disks, int chunk_size, int level, int layout, | |
314 | int source, unsigned long long read_offset, | |
315 | unsigned long long start, unsigned long long length); | |
e86c9dd6 | 316 | |
52826846 NB |
317 | #ifndef Sendmail |
318 | #define Sendmail "/usr/lib/sendmail -t" | |
319 | #endif | |
320 | ||
773135f5 NB |
321 | #define SYSLOG_FACILITY LOG_DAEMON |
322 | ||
682c7051 NB |
323 | extern char *map_num(mapping_t *map, int num); |
324 | extern int map_name(mapping_t *map, char *name); | |
b5e64645 | 325 | extern mapping_t r5layout[], pers[], modes[], faultylayout[]; |
682c7051 | 326 | |
16c6fa80 | 327 | extern char *map_dev(int major, int minor, int create); |
64c4757e NB |
328 | |
329 | ||
f9ce90ba | 330 | extern struct superswitch { |
3da92f27 NB |
331 | void (*examine_super)(struct supertype *st, char *homehost); |
332 | void (*brief_examine_super)(struct supertype *st); | |
0d726f17 | 333 | void (*export_examine_super)(struct supertype *st); |
3da92f27 | 334 | void (*detail_super)(struct supertype *st, char *homehost); |
3da92f27 | 335 | void (*brief_detail_super)(struct supertype *st); |
0d726f17 | 336 | void (*export_detail_super)(struct supertype *st); |
3da92f27 NB |
337 | void (*uuid_from_super)(struct supertype *st, int uuid[4]); |
338 | void (*getinfo_super)(struct supertype *st, struct mdinfo *info); | |
339 | int (*match_home)(struct supertype *st, char *homehost); | |
68c7d6d7 | 340 | int (*update_super)(struct supertype *st, struct mdinfo *info, |
3da92f27 | 341 | char *update, |
e5eac01f NB |
342 | char *devname, int verbose, |
343 | int uuid_set, char *homehost); | |
3da92f27 NB |
344 | int (*init_super)(struct supertype *st, mdu_array_info_t *info, |
345 | unsigned long long size, char *name, | |
346 | char *homehost, int *uuid); | |
347 | void (*add_to_super)(struct supertype *st, mdu_disk_info_t *dinfo); | |
348 | int (*store_super)(struct supertype *st, int fd); | |
349 | int (*write_init_super)(struct supertype *st, mdu_disk_info_t *dinfo, | |
350 | char *devname); | |
64557c33 | 351 | int (*compare_super)(struct supertype *st, struct supertype *tst); |
3da92f27 | 352 | int (*load_super)(struct supertype *st, int fd, char *devname); |
82d9eba6 | 353 | struct supertype * (*match_metadata_desc)(char *arg); |
1bf4e2d9 | 354 | __u64 (*avail_size)(struct supertype *st, __u64 size); |
3da92f27 | 355 | int (*add_internal_bitmap)(struct supertype *st, int *chunkp, |
199171a2 | 356 | int delay, int write_behind, |
f9c25f1d | 357 | unsigned long long size, int may_change, int major); |
3da92f27 NB |
358 | void (*locate_bitmap)(struct supertype *st, int fd); |
359 | int (*write_bitmap)(struct supertype *st, int fd); | |
360 | void (*free_super)(struct supertype *st); | |
82d9eba6 | 361 | int major; |
f277ce36 | 362 | int swapuuid; /* true if uuid is bigending rather than hostendian */ |
82d9eba6 NB |
363 | } super0, super1, *superlist[]; |
364 | ||
365 | struct supertype { | |
366 | struct superswitch *ss; | |
367 | int minor_version; | |
ea329559 | 368 | int max_devs; |
64557c33 | 369 | void *sb; |
82d9eba6 | 370 | }; |
f9ce90ba | 371 | |
1686dc25 | 372 | extern struct supertype *super_by_fd(int fd); |
82d9eba6 | 373 | extern struct supertype *guess_super(int fd); |
3da92f27 | 374 | extern struct supertype *dup_super(struct supertype *st); |
beae1dfe | 375 | extern int get_dev_size(int fd, char *dname, unsigned long long *sizep); |
8382f19b NB |
376 | extern void get_one_disk(int mdfd, mdu_array_info_t *ainf, |
377 | mdu_disk_info_t *disk); | |
f9ce90ba | 378 | |
838acbc2 NB |
379 | #if __GNUC__ < 3 |
380 | struct stat64; | |
381 | #endif | |
382 | ||
45e878bb NB |
383 | #define HAVE_NFTW we assume |
384 | #define HAVE_FTW | |
385 | ||
173fc515 | 386 | #ifdef UCLIBC |
45e878bb NB |
387 | # include <features.h> |
388 | # ifndef __UCLIBC_HAS_FTW__ | |
389 | # undef HAVE_FTW | |
390 | # undef HAVE_NFTW | |
391 | # endif | |
392 | #endif | |
393 | ||
394 | #ifdef __dietlibc__ | |
395 | # undef HAVE_NFTW | |
396 | #endif | |
397 | ||
e39b673e | 398 | #if defined(__KLIBC__) |
399 | # undef HAVE_NFTW | |
400 | # undef HAVE_FTW | |
401 | #endif | |
402 | ||
45e878bb | 403 | #ifndef HAVE_NFTW |
173fc515 | 404 | # define FTW_PHYS 1 |
45e878bb NB |
405 | # ifndef HAVE_FTW |
406 | struct FTW {}; | |
173fc515 NB |
407 | # endif |
408 | #endif | |
409 | ||
45e878bb NB |
410 | #ifdef HAVE_FTW |
411 | # include <ftw.h> | |
412 | #endif | |
413 | ||
173fc515 NB |
414 | extern int add_dev(const char *name, const struct stat *stb, int flag, struct FTW *s); |
415 | ||
f9ce90ba | 416 | |
64c4757e | 417 | extern int Manage_ro(char *devname, int fd, int readonly); |
91f068bf | 418 | extern int Manage_runstop(char *devname, int fd, int runstop, int quiet); |
dd0781e5 | 419 | extern int Manage_resize(char *devname, int fd, long long size, int raid_disks); |
b5e64645 | 420 | extern int Manage_reconfig(char *devname, int fd, int layout); |
64c4757e | 421 | extern int Manage_subdevs(char *devname, int fd, |
dab6685f | 422 | mddev_dev_t devlist, int verbose); |
1f48664b | 423 | extern int autodetect(void); |
e5329c37 | 424 | extern int Grow_Add_device(char *devname, int fd, char *newdev); |
8fac0577 | 425 | extern int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int write_behind, int force); |
06b0d786 | 426 | extern int Grow_reshape(char *devname, int fd, int quiet, char *backup_file, |
e86c9dd6 NB |
427 | long long size, |
428 | int level, int layout, int chunksize, int raid_disks); | |
06b0d786 NB |
429 | extern int Grow_restart(struct supertype *st, struct mdinfo *info, |
430 | int *fdlist, int cnt, char *backup_file); | |
64c4757e NB |
431 | |
432 | ||
82d9eba6 | 433 | extern int Assemble(struct supertype *st, char *mddev, int mdfd, |
52826846 | 434 | mddev_ident_t ident, |
06b0d786 | 435 | mddev_dev_t devlist, char *backup_file, |
64c4757e | 436 | int readonly, int runstop, |
e5eac01f | 437 | char *update, char *homehost, |
64c4757e NB |
438 | int verbose, int force); |
439 | ||
b5e64645 | 440 | extern int Build(char *mddev, int mdfd, int chunk, int level, int layout, |
64c4757e | 441 | int raiddisks, |
c82f047c | 442 | mddev_dev_t devlist, int assume_clean, |
dab6685f | 443 | char *bitmap_file, int bitmap_chunk, int write_behind, int delay, int verbose); |
64c4757e NB |
444 | |
445 | ||
82d9eba6 | 446 | extern int Create(struct supertype *st, char *mddev, int mdfd, |
5dd497ee | 447 | int chunk, int level, int layout, unsigned long long size, int raiddisks, int sparedisks, |
3d3dd91e | 448 | char *name, char *homehost, int *uuid, |
cd29a5c8 | 449 | int subdevs, mddev_dev_t devlist, |
47d79ef8 | 450 | int runstop, int verbose, int force, int assume_clean, |
dfd4d8ee | 451 | char *bitmap_file, int bitmap_chunk, int write_behind, int delay); |
64c4757e | 452 | |
54bad364 | 453 | extern int Detail(char *dev, int brief, int export, int test, char *homehost); |
e0d19036 | 454 | extern int Query(char *dev); |
0d726f17 KS |
455 | extern int Examine(mddev_dev_t devlist, int brief, int export, int scan, |
456 | int SparcAdjust, struct supertype *forcest, char *homehost); | |
cd29a5c8 | 457 | extern int Monitor(mddev_dev_t devlist, |
e0d19036 | 458 | char *mailaddr, char *alert_cmd, |
aa88f531 | 459 | int period, int daemonise, int scan, int oneshot, |
8aec876d | 460 | int dosyslog, int test, char *pidfile); |
64c4757e | 461 | |
6409687b | 462 | extern int Kill(char *dev, int force, int quiet); |
b90c0e9a | 463 | extern int Wait(char *dev); |
9a9dab36 | 464 | |
8382f19b NB |
465 | extern int Incremental(char *devname, int verbose, int runstop, |
466 | struct supertype *st, char *homehost, int autof); | |
467 | extern void RebuildMap(void); | |
468 | extern int IncrementalScan(int verbose); | |
469 | ||
c82f047c NB |
470 | extern int CreateBitmap(char *filename, int force, char uuid[16], |
471 | unsigned long chunksize, unsigned long daemon_sleep, | |
dfd4d8ee | 472 | unsigned long write_behind, |
dcec9ee5 NB |
473 | unsigned long long array_size, |
474 | int major); | |
55935d51 | 475 | extern int ExamineBitmap(char *filename, int brief, struct supertype *st); |
bf4fb153 | 476 | extern int bitmap_update_uuid(int fd, int *uuid, int swap); |
2a528478 | 477 | extern unsigned long bitmap_sectors(struct bitmap_super_s *bsb); |
c82f047c | 478 | |
64c4757e | 479 | extern int md_get_version(int fd); |
e0d19036 | 480 | extern int get_linux_version(void); |
64c4757e | 481 | extern int parse_uuid(char *str, int uuid[4]); |
682c7051 NB |
482 | extern int check_ext2(int fd, char *name); |
483 | extern int check_reiser(int fd, char *name); | |
484 | extern int check_raid(int fd, char *name); | |
64c4757e | 485 | |
dd0781e5 | 486 | extern int get_mdp_major(void); |
8b0dabea | 487 | extern int dev_open(char *dev, int flags); |
8d80900b | 488 | extern int is_standard(char *dev, int *nump); |
dd0781e5 | 489 | |
f1ae21c4 | 490 | extern int parse_auto(char *str, char *msg, int config); |
8aec876d NB |
491 | extern mddev_ident_t conf_get_ident(char *dev); |
492 | extern mddev_dev_t conf_get_devs(void); | |
8382f19b | 493 | extern int conf_test_dev(char *devname); |
8aec876d NB |
494 | extern struct createinfo *conf_get_create_info(void); |
495 | extern void set_conffile(char *file); | |
496 | extern char *conf_get_mailaddr(void); | |
497 | extern char *conf_get_mailfrom(void); | |
498 | extern char *conf_get_program(void); | |
499 | extern char *conf_get_homehost(void); | |
e0d19036 | 500 | extern char *conf_line(FILE *file); |
98c6faba | 501 | extern char *conf_word(FILE *file, int allow_key); |
e0d19036 NB |
502 | extern void free_line(char *line); |
503 | extern int match_oneof(char *devices, char *devname); | |
e0d19036 | 504 | extern void uuid_from_super(int uuid[4], mdp_super_t *super); |
f277ce36 | 505 | extern int same_uuid(int a[4], int b[4], int swapuuid); |
350f29f9 | 506 | extern void copy_uuid(void *a, int b[4], int swapuuid); |
4b1ac34b | 507 | extern unsigned long calc_csum(void *super, int bytes); |
583315d9 | 508 | extern int enough(int level, int raid_disks, int layout, int clean, |
265e0f17 | 509 | char *avail, int avail_disks); |
e0d19036 | 510 | extern int ask(char *mesg); |
8fac0577 | 511 | extern unsigned long long get_component_size(int fd); |
0430ed48 | 512 | extern void remove_partitions(int fd); |
e0d19036 | 513 | |
cd29a5c8 | 514 | |
56eb10c0 | 515 | extern char *human_size(long long bytes); |
e4965ef8 N |
516 | extern char *human_size_brief(long long bytes); |
517 | extern void print_r10_layout(int layout); | |
e0d19036 | 518 | |
63152c1b NB |
519 | #define NoMdDev (1<<23) |
520 | extern int find_free_devnum(int use_partitions); | |
521 | ||
e0d19036 NB |
522 | extern void put_md_name(char *name); |
523 | extern char *get_md_name(int dev); | |
524 | ||
c913b90e | 525 | extern char DefaultConfFile[]; |
b5e64645 NB |
526 | |
527 | extern int open_mddev(char *dev, int autof); | |
8382f19b | 528 | extern int open_mddev_devnum(char *devname, int devnum, char *name, |
9a02c62a | 529 | char *chosen_name, int parts); |
b5e64645 NB |
530 | |
531 | ||
532 | #define LEVEL_MULTIPATH (-4) | |
533 | #define LEVEL_LINEAR (-1) | |
534 | #define LEVEL_FAULTY (-5) | |
535 | ||
536 | ||
537 | /* faulty stuff */ | |
538 | ||
539 | #define WriteTransient 0 | |
540 | #define ReadTransient 1 | |
541 | #define WritePersistent 2 | |
542 | #define ReadPersistent 3 | |
543 | #define WriteAll 4 /* doesn't go to device */ | |
544 | #define ReadFixable 5 | |
545 | #define Modes 6 | |
546 | ||
547 | #define ClearErrors 31 | |
548 | #define ClearFaults 30 | |
549 | ||
550 | #define AllPersist 100 /* internal use only */ | |
551 | #define NoPersist 101 | |
552 | ||
553 | #define ModeMask 0x1f | |
554 | #define ModeShift 5 | |
fe6729fa NB |
555 | |
556 | ||
557 | #ifdef __TINYC__ | |
558 | #undef minor | |
559 | #undef major | |
560 | #undef makedev | |
561 | #define minor(x) ((x)&0xff) | |
562 | #define major(x) (((x)>>8)&0xff) | |
563 | #define makedev(M,m) (((M)<<8) | (m)) | |
564 | #endif | |
565 | ||
e86c9dd6 NB |
566 | /* for raid5 */ |
567 | #define ALGORITHM_LEFT_ASYMMETRIC 0 | |
568 | #define ALGORITHM_RIGHT_ASYMMETRIC 1 | |
569 | #define ALGORITHM_LEFT_SYMMETRIC 2 | |
570 | #define ALGORITHM_RIGHT_SYMMETRIC 3 |