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[thirdparty/mdadm.git] / Detail.c
1 /*
2 * mdadm - manage Linux "md" devices aka RAID arrays.
3 *
4 * Copyright (C) 2001-2013 Neil Brown <neilb@suse.de>
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@suse.de>
23 */
24
25 #include "mdadm.h"
26 #include "xmalloc.h"
27
28 #include <ctype.h>
29 #include <dirent.h>
30
31 static int cmpstringp(const void *p1, const void *p2)
32 {
33 return strcmp(* (char * const *) p1, * (char * const *) p2);
34 }
35
36 static int add_device(const char *dev, char ***p_devices,
37 int *p_max_devices, int n_devices)
38 {
39 if (n_devices + 1 >= *p_max_devices) {
40 *p_max_devices += 16;
41 *p_devices = xrealloc(*p_devices, *p_max_devices *
42 sizeof(**p_devices));
43 if (!*p_devices) {
44 *p_max_devices = 0;
45 return 0;
46 }
47 };
48 (*p_devices)[n_devices] = xstrdup(dev);
49 return n_devices + 1;
50 }
51
52 /**
53 * detail_fname_from_uuid() - generate uuid string with special super1 handling.
54 * @mp: map entry to parse.
55 * @buf: buf to write.
56 *
57 * Hack to workaround an issue with super1 superblocks. It swapuuid set in order for assembly
58 * to work, but can't have it set if we want this printout to match all the other uuid printouts
59 * in super1.c, so we force swapuuid to 1 to make our printout match the rest of super1.
60 *
61 * Always convert uuid if host is big endian.
62 */
63 char *detail_fname_from_uuid(struct map_ent *mp, char *buf)
64 {
65 #if __BYTE_ORDER == BIG_ENDIAN
66 bool swap = true;
67 #else
68 bool swap = false;
69 #endif
70 if (strncmp(mp->metadata, "1.", 2) == 0)
71 swap = true;
72
73 return __fname_from_uuid(mp->uuid, swap, buf, ':');
74 }
75
76 int Detail(char *dev, struct context *c)
77 {
78 /*
79 * Print out details for an md array
80 */
81 int fd = open(dev, O_RDONLY);
82 mdu_array_info_t array;
83 mdu_disk_info_t *disks = NULL;
84 int next;
85 int d;
86 time_t atime;
87 char *str;
88 char **devices = NULL;
89 int max_devices = 0, n_devices = 0;
90 int spares = 0;
91 struct stat stb;
92 int failed = 0;
93 struct supertype *st = NULL;
94 char *subarray = NULL;
95 int max_disks = MD_SB_DISKS; /* just a default */
96 struct mdinfo *info = NULL;
97 struct mdinfo *sra = NULL;
98 struct mdinfo *subdev;
99 char *member = NULL;
100 char *container = NULL;
101
102 int rv = c->test ? 4 : 1;
103 int avail_disks = 0;
104 char *avail = NULL;
105 int external;
106 int inactive;
107 int is_container = 0;
108 char *arrayst;
109
110 if (fd < 0) {
111 pr_err("cannot open %s: %s\n",
112 dev, strerror(errno));
113 return rv;
114 }
115 sra = sysfs_read(fd, NULL, GET_VERSION | GET_DEVS |
116 GET_ARRAY_STATE | GET_STATE);
117 if (!sra) {
118 if (md_get_array_info(fd, &array)) {
119 pr_err("%s does not appear to be an md device\n", dev);
120 goto out;
121 }
122 }
123 external = (sra != NULL && sra->array.major_version == -1 &&
124 sra->array.minor_version == -2);
125 inactive = (sra != NULL && !md_array_is_active(sra));
126 st = super_by_fd(fd, &subarray);
127 if (md_get_array_info(fd, &array)) {
128 if (errno == ENODEV) {
129 if (sra->array.major_version == -1 &&
130 sra->array.minor_version == -1 &&
131 sra->devs == NULL) {
132 pr_err("Array associated with md device %s does not exist.\n",
133 dev);
134 goto out;
135 }
136 array = sra->array;
137 } else {
138 pr_err("cannot get array detail for %s: %s\n",
139 dev, strerror(errno));
140 goto out;
141 }
142 }
143
144 if (array.raid_disks == 0 && external)
145 is_container = 1;
146 if (fstat(fd, &stb) != 0 && !S_ISBLK(stb.st_mode))
147 stb.st_rdev = 0;
148 rv = 0;
149
150 if (st)
151 max_disks = st->max_devs;
152
153 if (subarray) {
154 /* This is a subarray of some container.
155 * We want the name of the container, and the member
156 */
157 dev_t devid = devnm2devid(st->container_devnm);
158 int cfd, err;
159
160 member = subarray;
161 container = map_dev_preferred(major(devid), minor(devid),
162 1, c->prefer);
163 cfd = open_dev(st->container_devnm);
164 if (cfd >= 0) {
165 err = st->ss->load_container(st, cfd, NULL);
166 close(cfd);
167 if (err == 0)
168 info = st->ss->container_content(st, subarray);
169 }
170 }
171
172 /* try to load a superblock. Try sra->devs first, then try ioctl */
173 if (st && !info)
174 for (d = 0, subdev = sra ? sra->devs : NULL;
175 d < max_disks || subdev;
176 subdev ? (void)(subdev = subdev->next) : (void)(d++)){
177 mdu_disk_info_t disk;
178 char *dv;
179 int fd2;
180 int err;
181
182 if (subdev)
183 disk = subdev->disk;
184 else {
185 disk.number = d;
186 if (md_get_disk_info(fd, &disk) < 0)
187 continue;
188 if (d >= array.raid_disks &&
189 disk.major == 0 && disk.minor == 0)
190 continue;
191 }
192
193 if (array.raid_disks > 0 &&
194 (disk.state & (1 << MD_DISK_ACTIVE)) == 0)
195 continue;
196
197 dv = map_dev(disk.major, disk.minor, 1);
198 if (!dv)
199 continue;
200
201 fd2 = dev_open(dv, O_RDONLY);
202 if (fd2 < 0)
203 continue;
204
205 if (st->sb)
206 st->ss->free_super(st);
207
208 err = st->ss->load_super(st, fd2, NULL);
209 close(fd2);
210 if (err)
211 continue;
212 if (info)
213 free(info);
214 if (subarray)
215 info = st->ss->container_content(st, subarray);
216 else {
217 info = xmalloc(sizeof(*info));
218 st->ss->getinfo_super(st, info, NULL);
219 }
220 if (!info)
221 continue;
222
223 if (array.raid_disks != 0 && /* container */
224 (info->array.ctime != array.ctime ||
225 info->array.level != array.level)) {
226 st->ss->free_super(st);
227 continue;
228 }
229 /* some formats (imsm) have free-floating-spares
230 * with a uuid of uuid_zero, they don't
231 * have very good info about the rest of the
232 * container, so keep searching when
233 * encountering such a device. Otherwise, stop
234 * after the first successful call to
235 * ->load_super.
236 */
237 if (memcmp(uuid_zero,
238 info->uuid,
239 sizeof(uuid_zero)) == 0) {
240 st->ss->free_super(st);
241 continue;
242 }
243 break;
244 }
245
246 /* Ok, we have some info to print... */
247 if (inactive && info)
248 str = map_num(pers, info->array.level);
249 else
250 str = map_num(pers, array.level);
251
252 if (c->export) {
253 char nbuf[64];
254 struct map_ent *mp = NULL, *map = NULL;
255
256 if (array.raid_disks) {
257 if (str)
258 printf("MD_LEVEL=%s\n", str);
259 printf("MD_DEVICES=%d\n", array.raid_disks);
260 } else {
261 if (is_container)
262 printf("MD_LEVEL=container\n");
263 printf("MD_DEVICES=%d\n", array.nr_disks);
264 }
265 if (container) {
266 printf("MD_CONTAINER=%s\n", container);
267 printf("MD_MEMBER=%s\n", member);
268 } else {
269 if (sra && sra->array.major_version < 0)
270 printf("MD_METADATA=%s\n", sra->text_version);
271 else
272 printf("MD_METADATA=%d.%d\n",
273 array.major_version,
274 array.minor_version);
275 }
276
277 if (info && memcmp(info->uuid, uuid_zero, sizeof(int[4])) != 0)
278 mp = map_by_uuid(&map, info->uuid);
279 if (!mp)
280 mp = map_by_devnm(&map, fd2devnm(fd));
281
282 if (mp) {
283 detail_fname_from_uuid(mp, nbuf);
284 printf("MD_UUID=%s\n", nbuf + 5);
285 if (mp->path && strncmp(mp->path, DEV_MD_DIR, DEV_MD_DIR_LEN) == 0)
286 printf("MD_DEVNAME=%s\n", mp->path + DEV_MD_DIR_LEN);
287 }
288
289 map_free(map);
290 if (st && st->sb) {
291 if (info)
292 printf("MD_RESHAPE_ACTIVE=%s\n",
293 info->reshape_active ? "True" : "False");
294 if (st->ss->export_detail_super)
295 st->ss->export_detail_super(st);
296 }
297 if (!c->no_devices && sra) {
298 struct mdinfo *mdi;
299 for (mdi = sra->devs; mdi; mdi = mdi->next) {
300 char *path;
301 char *sysdev = xstrdup(mdi->sys_name);
302 char *cp;
303
304 path = map_dev(mdi->disk.major,
305 mdi->disk.minor, 0);
306 for (cp = sysdev; *cp; cp++)
307 if (!isalnum(*cp))
308 *cp = '_';
309
310 if (mdi->disk.raid_disk >= 0)
311 printf("MD_DEVICE_%s_ROLE=%d\n",
312 sysdev,
313 mdi->disk.raid_disk);
314 else
315 printf("MD_DEVICE_%s_ROLE=spare\n",
316 sysdev);
317 if (path)
318 printf("MD_DEVICE_%s_DEV=%s\n",
319 sysdev, path);
320 free(sysdev);
321 }
322 }
323 goto out;
324 }
325
326 disks = xmalloc(max_disks * 2 * sizeof(mdu_disk_info_t));
327 for (d = 0; d < max_disks * 2; d++) {
328 disks[d].state = (1 << MD_DISK_REMOVED);
329 disks[d].major = disks[d].minor = 0;
330 disks[d].number = -1;
331 disks[d].raid_disk = d / 2;
332 }
333
334 next = array.raid_disks * 2;
335 if (inactive) {
336 struct mdinfo *mdi;
337 for (mdi = sra->devs; mdi; mdi = mdi->next) {
338 disks[next++] = mdi->disk;
339 disks[next - 1].number = -1;
340 }
341 } else for (d = 0; d < max_disks; d++) {
342 mdu_disk_info_t disk;
343 disk.number = d;
344 if (md_get_disk_info(fd, &disk) < 0) {
345 if (d < array.raid_disks)
346 pr_err("cannot get device detail for device %d: %s\n",
347 d, strerror(errno));
348 continue;
349 }
350 if (disk.major == 0 && disk.minor == 0)
351 continue;
352 if (disk.raid_disk >= 0 && disk.raid_disk < array.raid_disks &&
353 disks[disk.raid_disk * 2].state == (1 << MD_DISK_REMOVED) &&
354 ((disk.state & (1 << MD_DISK_JOURNAL)) == 0))
355 disks[disk.raid_disk * 2] = disk;
356 else if (disk.raid_disk >= 0 &&
357 disk.raid_disk < array.raid_disks &&
358 disks[disk.raid_disk * 2 + 1].state ==
359 (1 << MD_DISK_REMOVED) &&
360 !(disk.state & (1 << MD_DISK_JOURNAL)))
361 disks[disk.raid_disk * 2 + 1] = disk;
362 else if (next < max_disks * 2)
363 disks[next++] = disk;
364 }
365
366 avail = xcalloc(array.raid_disks, 1);
367
368 for (d = 0; d < array.raid_disks; d++) {
369 char dv[PATH_MAX], dv_rep[PATH_MAX];
370 snprintf(dv, PATH_MAX, "/sys/dev/block/%d:%d",
371 disks[d*2].major, disks[d*2].minor);
372 snprintf(dv_rep, PATH_MAX, "/sys/dev/block/%d:%d",
373 disks[d*2+1].major, disks[d*2+1].minor);
374
375 if ((is_dev_alive(dv) && (disks[d*2].state & (1<<MD_DISK_SYNC))) ||
376 (is_dev_alive(dv_rep) && (disks[d*2+1].state & (1<<MD_DISK_SYNC)))) {
377 avail_disks ++;
378 avail[d] = 1;
379 } else
380 rv |= !! c->test;
381 }
382
383 if (c->brief) {
384 mdu_bitmap_file_t bmf;
385 if (inactive && !is_container)
386 printf("INACTIVE-ARRAY %s", dev);
387 else
388 printf("ARRAY %s", dev);
389 if (c->verbose > 0) {
390 if (array.raid_disks)
391 printf(" level=%s num-devices=%d",
392 str ? str : "-unknown-",
393 array.raid_disks);
394 else if (is_container)
395 printf(" level=container num-devices=%d",
396 array.nr_disks);
397 else
398 printf(" num-devices=%d", array.nr_disks);
399 }
400 if (container) {
401 printf(" container=%s", container);
402 printf(" member=%s", member);
403 } else {
404 if (sra && sra->array.major_version < 0)
405 printf(" metadata=%s", sra->text_version);
406 else
407 printf(" metadata=%d.%d", array.major_version,
408 array.minor_version);
409 }
410
411 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
412 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
413 printf(" bitmap=%s", bmf.pathname);
414 }
415 } else {
416 mdu_bitmap_file_t bmf;
417 unsigned long long larray_size;
418 struct mdstat_ent *ms = mdstat_read(0, 0);
419 struct mdstat_ent *e;
420 char *devnm;
421
422 devnm = stat2devnm(&stb);
423 for (e = ms; e; e = e->next)
424 if (strcmp(e->devnm, devnm) == 0)
425 break;
426 if (!get_dev_size(fd, NULL, &larray_size))
427 larray_size = 0;
428
429 printf("%s:\n", dev);
430
431 if (container)
432 printf(" Container : %s, member %s\n",
433 container, member);
434 else {
435 if (sra && sra->array.major_version < 0)
436 printf(" Version : %s\n",
437 sra->text_version);
438 else
439 printf(" Version : %d.%d\n",
440 array.major_version,
441 array.minor_version);
442 }
443
444 atime = array.ctime;
445 if (atime)
446 printf(" Creation Time : %.24s\n", ctime(&atime));
447 if (is_container)
448 str = "container";
449 if (str)
450 printf(" Raid Level : %s\n", str);
451 if (larray_size)
452 printf(" Array Size : %llu%s\n",
453 (larray_size >> 10),
454 human_size(larray_size));
455 if (array.level >= 1) {
456 if (sra)
457 array.major_version = sra->array.major_version;
458 if (array.major_version != 0 &&
459 (larray_size >= 0xFFFFFFFFULL|| array.size == 0)) {
460 unsigned long long dsize;
461
462 dsize = get_component_size(fd);
463 if (dsize > 0)
464 printf(" Used Dev Size : %llu%s\n",
465 dsize/2,
466 human_size((long long)dsize<<9));
467 else
468 printf(" Used Dev Size : unknown\n");
469 } else
470 printf(" Used Dev Size : %lu%s\n",
471 (unsigned long)array.size,
472 human_size((unsigned long long)
473 array.size << 10));
474 }
475 if (array.raid_disks)
476 printf(" Raid Devices : %d\n", array.raid_disks);
477 printf(" Total Devices : %d\n", array.nr_disks);
478 if (!container &&
479 ((sra == NULL && array.major_version == 0) ||
480 (sra && sra->array.major_version == 0)))
481 printf(" Preferred Minor : %d\n", array.md_minor);
482 if (sra == NULL || sra->array.major_version >= 0)
483 printf(" Persistence : Superblock is %spersistent\n",
484 array.not_persistent ? "not " : "");
485 printf("\n");
486 /* Only try GET_BITMAP_FILE for 0.90.01 and later */
487 if (ioctl(fd, GET_BITMAP_FILE, &bmf) == 0 && bmf.pathname[0]) {
488 printf(" Intent Bitmap : %s\n", bmf.pathname);
489 printf("\n");
490 } else if (array.state & (1<<MD_SB_CLUSTERED))
491 printf(" Intent Bitmap : Internal(Clustered)\n\n");
492 else if (array.state & (1<<MD_SB_BITMAP_PRESENT))
493 printf(" Intent Bitmap : Internal\n\n");
494 atime = array.utime;
495 if (atime)
496 printf(" Update Time : %.24s\n", ctime(&atime));
497 if (array.raid_disks) {
498 static char *sync_action[] = {
499 ", recovering", ", resyncing",
500 ", reshaping", ", checking" };
501 char *st;
502 if (avail_disks == array.raid_disks)
503 st = "";
504 else if (!enough(array.level, array.raid_disks,
505 array.layout, 1, avail))
506 st = ", FAILED";
507 else
508 st = ", degraded";
509
510 if (array.state & (1 << MD_SB_CLEAN)) {
511 if ((array.level == 0) ||
512 (array.level == LEVEL_LINEAR))
513 arrayst = map_num_s(sysfs_array_states,
514 sra->array_state);
515 else
516 arrayst = "clean";
517 } else {
518 arrayst = "active";
519 if (array.state & (1<<MD_SB_CLUSTERED)) {
520 for (d = 0; d < max_disks * 2; d++) {
521 char *dv;
522 mdu_disk_info_t disk = disks[d];
523
524 /* only check first valid disk in cluster env */
525 if ((disk.state & (MD_DISK_SYNC | MD_DISK_ACTIVE))
526 && (disk.major | disk.minor)) {
527 dv = map_dev_preferred(disk.major, disk.minor, 0,
528 c->prefer);
529 if (!dv)
530 continue;
531 arrayst = IsBitmapDirty(dv) ? "active" : "clean";
532 break;
533 }
534 }
535 }
536 }
537
538 printf(" State : %s%s%s%s%s%s%s \n",
539 arrayst, st,
540 (!e || (e->percent < 0 &&
541 e->percent != RESYNC_PENDING &&
542 e->percent != RESYNC_DELAYED &&
543 e->percent != RESYNC_REMOTE)) ?
544 "" : sync_action[e->resync],
545 larray_size ? "": ", Not Started",
546 (e && e->percent == RESYNC_DELAYED) ?
547 " (DELAYED)": "",
548 (e && e->percent == RESYNC_PENDING) ?
549 " (PENDING)": "",
550 (e && e->percent == RESYNC_REMOTE) ?
551 " (REMOTE)": "");
552 } else if (inactive && !is_container) {
553 printf(" State : inactive\n");
554 }
555 printf(" Active Devices : %d\n", array.active_disks);
556 printf(" Working Devices : %d\n", array.working_disks);
557 printf(" Failed Devices : %d\n", array.failed_disks);
558 printf(" Spare Devices : %d\n", array.spare_disks);
559 printf("\n");
560 if (array.level == 5) {
561 str = map_num(r5layout, array.layout);
562 printf(" Layout : %s\n",
563 str ? str : "-unknown-");
564 }
565 if (array.level == 0 && array.layout) {
566 str = map_num(r0layout, array.layout);
567 printf(" Layout : %s\n",
568 str ? str : "-unknown-");
569 }
570 if (array.level == 6) {
571 str = map_num(r6layout, array.layout);
572 printf(" Layout : %s\n",
573 str ? str : "-unknown-");
574 }
575 if (array.level == 10) {
576 printf(" Layout :");
577 print_r10_layout(array.layout);
578 printf("\n");
579 }
580 switch (array.level) {
581 case 0:
582 case 4:
583 case 5:
584 case 10:
585 case 6:
586 if (array.chunk_size)
587 printf(" Chunk Size : %dK\n\n",
588 array.chunk_size/1024);
589 break;
590 case -1:
591 printf(" Rounding : %dK\n\n",
592 array.chunk_size/1024);
593 break;
594 default:
595 break;
596 }
597
598 if (array.raid_disks) {
599 struct mdinfo *mdi;
600
601 mdi = sysfs_read(fd, NULL, GET_CONSISTENCY_POLICY);
602 if (mdi) {
603 char *policy = map_num(consistency_policies,
604 mdi->consistency_policy);
605 sysfs_free(mdi);
606 if (policy)
607 printf("Consistency Policy : %s\n\n",
608 policy);
609 }
610 }
611
612 if (e && e->percent >= 0) {
613 static char *sync_action[] = {
614 "Rebuild", "Resync", "Reshape", "Check"};
615 printf(" %7s Status : %d%% complete\n",
616 sync_action[e->resync], e->percent);
617 }
618
619 if ((st && st->sb) && (info && info->reshape_active)) {
620 if (info->delta_disks != 0)
621 printf(" Delta Devices : %d, (%d->%d)\n",
622 info->delta_disks,
623 array.raid_disks - info->delta_disks,
624 array.raid_disks);
625 if (info->new_level != array.level) {
626 str = map_num(pers, info->new_level);
627 printf(" New Level : %s\n",
628 str ? str : "-unknown-");
629 }
630 if (info->new_level != array.level ||
631 info->new_layout != array.layout) {
632 if (info->new_level == 5) {
633 str = map_num(r5layout,
634 info->new_layout);
635 printf(" New Layout : %s\n",
636 str ? str : "-unknown-");
637 }
638 if (info->new_level == 6) {
639 str = map_num(r6layout,
640 info->new_layout);
641 printf(" New Layout : %s\n",
642 str ? str : "-unknown-");
643 }
644 if (info->new_level == 10) {
645 printf(" New Layout : near=%d, %s=%d\n",
646 info->new_layout & 255,
647 (info->new_layout & 0x10000) ?
648 "offset" : "far",
649 (info->new_layout >> 8) & 255);
650 }
651 }
652 if (info->new_chunk != array.chunk_size)
653 printf(" New Chunksize : %dK\n",
654 info->new_chunk/1024);
655 printf("\n");
656 } else if (e && e->percent >= 0)
657 printf("\n");
658 free_mdstat(ms);
659
660 if (st && st->sb)
661 st->ss->detail_super(st, c->homehost, subarray);
662
663 if (array.raid_disks == 0 && sra &&
664 sra->array.major_version == -1 &&
665 sra->array.minor_version == -2 &&
666 sra->text_version[0] != '/') {
667 /* This looks like a container. Find any active arrays
668 * That claim to be a member.
669 */
670 DIR *dir = opendir("/sys/block");
671 struct dirent *de;
672
673 printf(" Member Arrays :");
674
675 while (dir && (de = readdir(dir)) != NULL) {
676 char path[287];
677 char vbuf[1024];
678 int nlen = strlen(sra->sys_name);
679 dev_t devid;
680 if (de->d_name[0] == '.')
681 continue;
682 sprintf(path,
683 "/sys/block/%s/md/metadata_version",
684 de->d_name);
685 if (load_sys(path, vbuf, sizeof(vbuf)) < 0)
686 continue;
687 if (strncmp(vbuf, "external:", 9) ||
688 !is_subarray(vbuf + 9) ||
689 strncmp(vbuf + 10, sra->sys_name, nlen) ||
690 vbuf[10 + nlen] != '/')
691 continue;
692 devid = devnm2devid(de->d_name);
693 printf(" %s",
694 map_dev_preferred(major(devid),
695 minor(devid), 1,
696 c->prefer));
697 }
698 if (dir)
699 closedir(dir);
700 printf("\n\n");
701 }
702
703 if (!c->no_devices) {
704 if (array.raid_disks)
705 printf(" Number Major Minor RaidDevice State\n");
706 else
707 printf(" Number Major Minor RaidDevice\n");
708 }
709 }
710
711 /* if --no_devices specified, not print component devices info */
712 if (c->no_devices)
713 goto skip_devices_state;
714
715 for (d = 0; d < max_disks * 2; d++) {
716 char *dv;
717 mdu_disk_info_t disk = disks[d];
718
719 if (d >= array.raid_disks * 2 &&
720 disk.major == 0 && disk.minor == 0)
721 continue;
722 if ((d & 1) && disk.major == 0 && disk.minor == 0)
723 continue;
724 if (!c->brief) {
725 if (d == array.raid_disks*2)
726 printf("\n");
727 if (disk.number < 0 && disk.raid_disk < 0)
728 printf(" - %5d %5d - ",
729 disk.major, disk.minor);
730 else if (disk.raid_disk < 0 ||
731 disk.state & (1 << MD_DISK_JOURNAL))
732 printf(" %5d %5d %5d - ",
733 disk.number, disk.major, disk.minor);
734 else if (disk.number < 0)
735 printf(" - %5d %5d %5d ",
736 disk.major, disk.minor, disk.raid_disk);
737 else
738 printf(" %5d %5d %5d %5d ",
739 disk.number, disk.major, disk.minor,
740 disk.raid_disk);
741 }
742 if (!c->brief && array.raid_disks) {
743 if (disk.state & (1 << MD_DISK_FAULTY)) {
744 printf(" faulty");
745 if (disk.raid_disk < array.raid_disks &&
746 disk.raid_disk >= 0)
747 failed++;
748 }
749 if (disk.state & (1 << MD_DISK_ACTIVE))
750 printf(" active");
751 if (disk.state & (1 << MD_DISK_SYNC)) {
752 printf(" sync");
753 if (array.level == 10 &&
754 (array.layout & ~0x1FFFF) == 0) {
755 int nc = array.layout & 0xff;
756 int fc = (array.layout >> 8) & 0xff;
757 int copies = nc*fc;
758 if (fc == 1 &&
759 array.raid_disks % copies == 0 &&
760 copies <= 26) {
761 /* We can divide the devices
762 into 'sets' */
763 int set;
764 set = disk.raid_disk % copies;
765 printf(" set-%c", set + 'A');
766 }
767 }
768 }
769 if (disk.state & (1 << MD_DISK_REMOVED))
770 printf(" removed");
771 if (disk.state & (1 << MD_DISK_WRITEMOSTLY))
772 printf(" writemostly");
773 if (disk.state & (1 << MD_DISK_FAILFAST))
774 printf(" failfast");
775 if (disk.state & (1 << MD_DISK_JOURNAL))
776 printf(" journal");
777 if ((disk.state &
778 ((1 << MD_DISK_ACTIVE) | (1 << MD_DISK_SYNC) |
779 (1 << MD_DISK_REMOVED) | (1 << MD_DISK_FAULTY) |
780 (1 << MD_DISK_JOURNAL))) == 0) {
781 printf(" spare");
782 if (disk.raid_disk < array.raid_disks &&
783 disk.raid_disk >= 0)
784 printf(" rebuilding");
785 }
786 }
787 if (disk.state == 0)
788 spares++;
789 dv = map_dev_preferred(disk.major, disk.minor, 0, c->prefer);
790 if (dv != NULL) {
791 if (c->brief)
792 n_devices = add_device(dv, &devices,
793 &max_devices, n_devices);
794 else
795 printf(" %s", dv);
796 } else if (disk.major | disk.minor)
797 printf(" missing");
798 if (!c->brief)
799 printf("\n");
800 }
801
802 skip_devices_state:
803 if (spares && c->brief && array.raid_disks)
804 printf(" spares=%d", spares);
805 if (c->brief && st && st->sb)
806 st->ss->brief_detail_super(st, subarray);
807 if (st)
808 st->ss->free_super(st);
809
810 if (c->brief && c->verbose > 0 && devices) {
811 qsort(devices, n_devices, sizeof(*devices), cmpstringp);
812 printf("\n devices=%s", devices[0]);
813 for (d = 1; d < n_devices; d++)
814 printf(",%s", devices[d]);
815 }
816 if (c->brief)
817 printf("\n");
818 if (c->test &&
819 !enough(array.level, array.raid_disks, array.layout, 1, avail))
820 rv = 2;
821
822 out:
823 free(info);
824 free(disks);
825 close(fd);
826 free(subarray);
827 free(avail);
828 if (devices)
829 for (d = 0; d < n_devices; d++)
830 free(devices[d]);
831 free(devices);
832 sysfs_free(sra);
833 free(st);
834 return rv;
835 }
836
837 int Detail_Platform(struct superswitch *ss, int scan, int verbose, int export, char *controller_path)
838 {
839 /* display platform capabilities for the given metadata format
840 * 'scan' in this context means iterate over all metadata types
841 */
842 int i;
843 int err = 1;
844
845 if (ss && export && ss->export_detail_platform)
846 err = ss->export_detail_platform(verbose, controller_path);
847 else if (ss && ss->detail_platform)
848 err = ss->detail_platform(verbose, 0, controller_path);
849 else if (ss) {
850 if (verbose > 0)
851 pr_err("%s metadata is platform independent\n",
852 ss->name ? : "[no name]");
853 } else if (!scan) {
854 if (verbose > 0)
855 pr_err("specify a metadata type or --scan\n");
856 }
857
858 if (!scan)
859 return err;
860
861 err = 0;
862 for (i = 0; superlist[i]; i++) {
863 struct superswitch *meta = superlist[i];
864
865 if (meta == ss)
866 continue;
867 if (verbose > 0)
868 pr_err("checking metadata %s\n",
869 meta->name ? : "[no name]");
870 if (!meta->detail_platform) {
871 if (verbose > 0)
872 pr_err("%s metadata is platform independent\n",
873 meta->name ? : "[no name]");
874 } else if (export && meta->export_detail_platform) {
875 err |= meta->export_detail_platform(verbose, controller_path);
876 } else
877 err |= meta->detail_platform(verbose, 0, controller_path);
878 }
879
880 return err;
881 }
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