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Commit | Line | Data |
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2a4c734b | 1 | /* |
f77fa578 | 2 | * lsblk(8) - list block devices |
2a4c734b | 3 | * |
270e66ec | 4 | * Copyright (C) 2010,2011 Red Hat, Inc. All rights reserved. |
2a4c734b MB |
5 | * Written by Milan Broz <mbroz@redhat.com> |
6 | * Karel Zak <kzak@redhat.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it would be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software Foundation, | |
20 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | */ | |
22 | ||
23 | #include <stdio.h> | |
24 | #include <errno.h> | |
25 | #include <getopt.h> | |
2a4c734b MB |
26 | #include <stdlib.h> |
27 | #include <unistd.h> | |
28 | #include <stdint.h> | |
29 | #include <sys/types.h> | |
30 | #include <sys/stat.h> | |
31 | #include <dirent.h> | |
32 | #include <fcntl.h> | |
33 | #include <string.h> | |
2a4c734b MB |
34 | #include <sys/ioctl.h> |
35 | #include <inttypes.h> | |
36 | #include <stdarg.h> | |
37 | #include <locale.h> | |
38 | #include <pwd.h> | |
39 | #include <grp.h> | |
18eac5ba | 40 | #include <ctype.h> |
2a4c734b MB |
41 | |
42 | #include <blkid.h> | |
43 | ||
f17f5f48 IM |
44 | #ifdef HAVE_LIBUDEV |
45 | #include <libudev.h> | |
46 | #endif | |
47 | ||
2a4c734b MB |
48 | #include <assert.h> |
49 | ||
50 | #include "pathnames.h" | |
51 | #include "blkdev.h" | |
52 | #include "canonicalize.h" | |
53 | #include "ismounted.h" | |
54 | #include "nls.h" | |
55 | #include "tt.h" | |
56 | #include "xalloc.h" | |
57 | #include "strutils.h" | |
eb76ca98 | 58 | #include "c.h" |
766ab9b0 | 59 | #include "sysfs.h" |
2a4c734b MB |
60 | |
61 | /* column IDs */ | |
62 | enum { | |
63 | COL_NAME = 0, | |
64 | COL_KNAME, | |
65 | COL_MAJMIN, | |
66 | COL_FSTYPE, | |
67 | COL_TARGET, | |
68 | COL_LABEL, | |
69 | COL_UUID, | |
70 | COL_RO, | |
627970a7 | 71 | COL_RM, |
2a4c734b MB |
72 | COL_MODEL, |
73 | COL_SIZE, | |
01e487c0 | 74 | COL_STATE, |
2a4c734b MB |
75 | COL_OWNER, |
76 | COL_GROUP, | |
77 | COL_MODE, | |
78 | COL_ALIOFF, | |
79 | COL_MINIO, | |
80 | COL_OPTIO, | |
81 | COL_PHYSEC, | |
82 | COL_LOGSEC, | |
83 | COL_ROTA, | |
84 | COL_SCHED, | |
64c9e22a | 85 | COL_RQ_SIZE, |
18eac5ba | 86 | COL_TYPE, |
2d232246 MP |
87 | COL_DALIGN, |
88 | COL_DGRAN, | |
89 | COL_DMAX, | |
90 | COL_DZERO, | |
2a4c734b MB |
91 | |
92 | __NCOLUMNS | |
93 | }; | |
94 | ||
95 | /* column names */ | |
96 | struct colinfo { | |
97 | const char *name; /* header */ | |
98 | double whint; /* width hint (N < 1 is in percent of termwidth) */ | |
99 | int flags; /* TT_FL_* */ | |
100 | const char *help; | |
101 | }; | |
102 | ||
103 | /* columns descriptions */ | |
104 | static struct colinfo infos[__NCOLUMNS] = { | |
105 | [COL_NAME] = { "NAME", 0.25, TT_FL_TREE, N_("device name") }, | |
e22d8b95 | 106 | [COL_KNAME] = { "KNAME", 0.3, 0, N_("internal kernel device name") }, |
2a4c734b MB |
107 | [COL_MAJMIN] = { "MAJ:MIN", 6, 0, N_("major:minor device number") }, |
108 | [COL_FSTYPE] = { "FSTYPE", 0.1, TT_FL_TRUNC, N_("filesystem type") }, | |
109 | [COL_TARGET] = { "MOUNTPOINT", 0.10, TT_FL_TRUNC, N_("where the device is mounted") }, | |
110 | [COL_LABEL] = { "LABEL", 0.1, 0, N_("filesystem LABEL") }, | |
111 | [COL_UUID] = { "UUID", 36, 0, N_("filesystem UUID") }, | |
112 | [COL_RO] = { "RO", 1, TT_FL_RIGHT, N_("read-only device") }, | |
627970a7 | 113 | [COL_RM] = { "RM", 1, TT_FL_RIGHT, N_("removable device") }, |
2a4c734b MB |
114 | [COL_ROTA] = { "ROTA", 1, TT_FL_RIGHT, N_("rotational device") }, |
115 | [COL_MODEL] = { "MODEL", 0.1, TT_FL_TRUNC, N_("device identifier") }, | |
116 | [COL_SIZE] = { "SIZE", 6, TT_FL_RIGHT, N_("size of the device") }, | |
01e487c0 | 117 | [COL_STATE] = { "STATE", 7, TT_FL_TRUNC, N_("state of the device") }, |
2a4c734b MB |
118 | [COL_OWNER] = { "OWNER", 0.1, TT_FL_TRUNC, N_("user name"), }, |
119 | [COL_GROUP] = { "GROUP", 0.1, TT_FL_TRUNC, N_("group name") }, | |
120 | [COL_MODE] = { "MODE", 10, 0, N_("device node permissions") }, | |
121 | [COL_ALIOFF] = { "ALIGNMENT", 6, TT_FL_RIGHT, N_("alignment offset") }, | |
122 | [COL_MINIO] = { "MIN-IO", 6, TT_FL_RIGHT, N_("minimum I/O size") }, | |
123 | [COL_OPTIO] = { "OPT-IO", 6, TT_FL_RIGHT, N_("optimal I/O size") }, | |
124 | [COL_PHYSEC] = { "PHY-SEC", 7, TT_FL_RIGHT, N_("physical sector size") }, | |
125 | [COL_LOGSEC] = { "LOG-SEC", 7, TT_FL_RIGHT, N_("logical sector size") }, | |
18eac5ba | 126 | [COL_SCHED] = { "SCHED", 0.1, 0, N_("I/O scheduler name") }, |
64c9e22a | 127 | [COL_RQ_SIZE]= { "RQ-SIZE", 5, TT_FL_RIGHT, N_("request queue size") }, |
2d232246 MP |
128 | [COL_TYPE] = { "TYPE", 4, 0, N_("device type") }, |
129 | [COL_DALIGN] = { "DISC-ALN", 6, TT_FL_RIGHT, N_("discard alignment offset") }, | |
130 | [COL_DGRAN] = { "DISC-GRAN", 6, TT_FL_RIGHT, N_("discard granularity") }, | |
131 | [COL_DMAX] = { "DISC-MAX", 6, TT_FL_RIGHT, N_("discard max bytes") }, | |
132 | [COL_DZERO] = { "DISC-ZERO", 1, TT_FL_RIGHT, N_("discard zeroes data") }, | |
2a4c734b MB |
133 | }; |
134 | ||
135 | struct lsblk { | |
9feec79c KZ |
136 | struct tt *tt; /* output table */ |
137 | unsigned int all_devices:1; /* print all devices */ | |
138 | unsigned int bytes:1; /* print SIZE in bytes */ | |
139 | unsigned int nodeps:1; /* don't print slaves/holders */ | |
2a4c734b MB |
140 | }; |
141 | ||
142 | struct lsblk *lsblk; /* global handler */ | |
143 | int columns[__NCOLUMNS];/* enabled columns */ | |
144 | int ncolumns; /* number of enabled columns */ | |
145 | ||
6aace32f KZ |
146 | int excludes[256]; |
147 | size_t nexcludes; | |
2a4c734b MB |
148 | |
149 | struct blkdev_cxt { | |
150 | struct blkdev_cxt *parent; | |
151 | ||
152 | struct tt_line *tt_line; | |
153 | struct stat st; | |
154 | ||
155 | char *name; /* kernel name in /sys/block */ | |
156 | char *dm_name; /* DM name (dm/block) */ | |
157 | ||
158 | char *filename; /* path to device node */ | |
766ab9b0 KZ |
159 | |
160 | struct sysfs_cxt sysfs; | |
2a4c734b MB |
161 | |
162 | int partition; /* is partition? TRUE/FALSE */ | |
163 | ||
164 | int probed; /* already probed */ | |
165 | char *fstype; /* detected fs, NULL or "?" if cannot detect */ | |
166 | char *uuid; /* UUID of device / filesystem */ | |
167 | char *label; /* FS label */ | |
168 | ||
169 | int nholders; /* # of devices mapped directly to this device | |
170 | * /sys/block/.../holders + number of partition */ | |
171 | int nslaves; /* # of devices this device maps to */ | |
172 | int maj, min; /* devno */ | |
98055888 | 173 | int discard; /* supports discard */ |
2a4c734b MB |
174 | |
175 | uint64_t size; /* device size */ | |
176 | }; | |
177 | ||
178 | static int is_maj_excluded(int maj) | |
179 | { | |
6aace32f | 180 | size_t i; |
2a4c734b MB |
181 | |
182 | assert(ARRAY_SIZE(excludes) > nexcludes); | |
183 | ||
184 | for (i = 0; i < nexcludes; i++) | |
185 | if (excludes[i] == maj) | |
186 | return 1; | |
187 | return 0; | |
188 | } | |
189 | ||
2a4c734b MB |
190 | /* array with IDs of enabled columns */ |
191 | static int get_column_id(int num) | |
192 | { | |
193 | assert(ARRAY_SIZE(columns) == __NCOLUMNS); | |
194 | assert(num < ncolumns); | |
195 | assert(columns[num] < __NCOLUMNS); | |
196 | return columns[num]; | |
197 | } | |
198 | ||
199 | static struct colinfo *get_column_info(int num) | |
200 | { | |
201 | return &infos[ get_column_id(num) ]; | |
202 | } | |
203 | ||
2a4c734b MB |
204 | static int column_name_to_id(const char *name, size_t namesz) |
205 | { | |
206 | int i; | |
207 | ||
208 | for (i = 0; i < __NCOLUMNS; i++) { | |
209 | const char *cn = infos[i].name; | |
210 | ||
211 | if (!strncasecmp(name, cn, namesz) && !*(cn + namesz)) | |
212 | return i; | |
213 | } | |
214 | warnx(_("unknown column: %s"), name); | |
215 | return -1; | |
216 | } | |
217 | ||
218 | static void reset_blkdev_cxt(struct blkdev_cxt *cxt) | |
219 | { | |
220 | if (!cxt) | |
221 | return; | |
222 | free(cxt->name); | |
223 | free(cxt->dm_name); | |
224 | free(cxt->filename); | |
225 | free(cxt->fstype); | |
226 | free(cxt->uuid); | |
227 | free(cxt->label); | |
228 | ||
766ab9b0 | 229 | sysfs_deinit(&cxt->sysfs); |
2a4c734b MB |
230 | |
231 | memset(cxt, 0, sizeof(*cxt)); | |
232 | } | |
233 | ||
234 | static int is_dm(const char *name) | |
235 | { | |
236 | return strncmp(name, "dm-", 3) ? 0 : 1; | |
237 | } | |
238 | ||
239 | static struct dirent *xreaddir(DIR *dp) | |
240 | { | |
241 | struct dirent *d; | |
242 | ||
243 | assert(dp); | |
244 | ||
245 | while ((d = readdir(dp))) { | |
246 | if (!strcmp(d->d_name, ".") || | |
247 | !strcmp(d->d_name, "..")) | |
248 | continue; | |
249 | ||
250 | /* blacklist here? */ | |
251 | break; | |
252 | } | |
253 | return d; | |
254 | } | |
255 | ||
2a4c734b MB |
256 | static char *get_device_path(struct blkdev_cxt *cxt) |
257 | { | |
258 | char path[PATH_MAX]; | |
259 | ||
260 | assert(cxt); | |
261 | assert(cxt->name); | |
262 | ||
263 | if (is_dm(cxt->name)) | |
264 | return canonicalize_dm_name(cxt->name); | |
265 | ||
266 | snprintf(path, sizeof(path), "/dev/%s", cxt->name); | |
267 | return xstrdup(path); | |
268 | } | |
269 | ||
2a4c734b MB |
270 | static char *get_device_mountpoint(struct blkdev_cxt *cxt) |
271 | { | |
272 | int fl = 0; | |
273 | char mnt[PATH_MAX]; | |
274 | ||
270e66ec MB |
275 | assert(cxt); |
276 | assert(cxt->filename); | |
277 | ||
2a4c734b MB |
278 | *mnt = '\0'; |
279 | ||
280 | /* | |
281 | * TODO: use libmount and parse /proc/mountinfo only once | |
282 | */ | |
283 | if (check_mount_point(cxt->filename, &fl, mnt, sizeof(mnt)) == 0 && | |
284 | (fl & MF_MOUNTED)) { | |
285 | if (fl & MF_SWAP) | |
286 | strcpy(mnt, "[SWAP]"); | |
287 | } | |
288 | return strlen(mnt) ? xstrdup(mnt) : NULL; | |
289 | } | |
290 | ||
f17f5f48 IM |
291 | #ifndef HAVE_LIBUDEV |
292 | static int probe_device_by_udev(struct blkdev_cxt *cxt | |
293 | __attribute__((__unused__))) | |
294 | { | |
295 | return -1; | |
296 | } | |
297 | #else | |
298 | static int probe_device_by_udev(struct blkdev_cxt *cxt) | |
299 | { | |
300 | struct udev *udev; | |
301 | struct udev_device *dev; | |
302 | ||
303 | udev = udev_new(); | |
304 | if (!udev) | |
305 | return -1; | |
306 | ||
307 | dev = udev_device_new_from_subsystem_sysname(udev, "block", cxt->name); | |
308 | if (dev) { | |
309 | const char *data; | |
310 | ||
311 | if ((data = udev_device_get_property_value(dev, "ID_FS_LABEL"))) | |
312 | cxt->label = xstrdup(data); | |
313 | if ((data = udev_device_get_property_value(dev, "ID_FS_TYPE"))) | |
314 | cxt->fstype = xstrdup(data); | |
315 | if ((data = udev_device_get_property_value(dev, "ID_FS_UUID"))) | |
316 | cxt->uuid = xstrdup(data); | |
317 | ||
318 | udev_device_unref(dev); | |
319 | } | |
320 | ||
321 | udev_unref(udev); | |
322 | return 0; | |
323 | } | |
324 | #endif /* HAVE_LIBUDEV */ | |
325 | ||
2a4c734b MB |
326 | static void probe_device(struct blkdev_cxt *cxt) |
327 | { | |
2a4c734b MB |
328 | blkid_probe pr = NULL; |
329 | ||
330 | if (cxt->probed) | |
331 | return; | |
f17f5f48 | 332 | |
2a4c734b MB |
333 | cxt->probed = 1; |
334 | ||
335 | if (!cxt->size) | |
336 | return; | |
337 | ||
f17f5f48 IM |
338 | /* try udev DB */ |
339 | if (probe_device_by_udev(cxt) == 0) | |
340 | return; /* success */ | |
341 | ||
342 | /* try libblkid */ | |
2a4c734b MB |
343 | pr = blkid_new_probe_from_filename(cxt->filename); |
344 | if (!pr) | |
345 | return; | |
346 | ||
347 | /* TODO: we have to enable partitions probing to avoid conflicts | |
348 | * between raids and PT -- see blkid(8) code for more details | |
349 | */ | |
350 | blkid_probe_enable_superblocks(pr, 1); | |
351 | blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_LABEL | | |
352 | BLKID_SUBLKS_UUID | | |
353 | BLKID_SUBLKS_TYPE); | |
354 | if (!blkid_do_safeprobe(pr)) { | |
355 | const char *data = NULL; | |
356 | ||
357 | if (!blkid_probe_lookup_value(pr, "TYPE", &data, NULL)) | |
358 | cxt->fstype = xstrdup(data); | |
359 | if (!blkid_probe_lookup_value(pr, "UUID", &data, NULL)) | |
360 | cxt->uuid = xstrdup(data); | |
361 | if (!blkid_probe_lookup_value(pr, "LABEL", &data, NULL)) | |
362 | cxt->label = xstrdup(data); | |
363 | } | |
364 | ||
2a4c734b MB |
365 | blkid_free_probe(pr); |
366 | return; | |
367 | } | |
368 | ||
369 | static int is_readonly_device(struct blkdev_cxt *cxt) | |
370 | { | |
371 | int fd, ro = 0; | |
372 | ||
766ab9b0 | 373 | if (sysfs_scanf(&cxt->sysfs, "ro", "%d", &ro) == 0) |
2a4c734b MB |
374 | return ro; |
375 | ||
376 | /* fallback if "ro" attribute does not exist */ | |
377 | fd = open(cxt->filename, O_RDONLY); | |
378 | if (fd != -1) { | |
379 | ioctl(fd, BLKROGET, &ro); | |
380 | close(fd); | |
381 | } | |
382 | return ro; | |
383 | } | |
384 | ||
385 | static char *get_scheduler(struct blkdev_cxt *cxt) | |
386 | { | |
766ab9b0 | 387 | char *str = sysfs_strdup(&cxt->sysfs, "queue/scheduler"); |
2a4c734b MB |
388 | char *p, *res = NULL; |
389 | ||
390 | if (!str) | |
391 | return NULL; | |
392 | p = strchr(str, '['); | |
393 | if (p) { | |
394 | res = p + 1; | |
395 | p = strchr(res, ']'); | |
396 | if (p) { | |
397 | *p = '\0'; | |
398 | res = xstrdup(res); | |
399 | } else | |
400 | res = NULL; | |
401 | } | |
402 | free(str); | |
403 | return res; | |
404 | } | |
405 | ||
18eac5ba MB |
406 | static char *get_type(struct blkdev_cxt *cxt) |
407 | { | |
408 | char *res = NULL, *p; | |
409 | ||
410 | if (is_dm(cxt->name)) { | |
766ab9b0 | 411 | char *dm_uuid = sysfs_strdup(&cxt->sysfs, "dm/uuid"); |
18eac5ba MB |
412 | |
413 | /* The DM_UUID prefix should be set to subsystem owning | |
414 | * the device - LVM, CRYPT, DMRAID, MPATH, PART */ | |
415 | if (dm_uuid) { | |
416 | char *tmp = dm_uuid; | |
417 | char *dm_uuid_prefix = strsep(&tmp, "-"); | |
418 | ||
419 | if (dm_uuid_prefix) { | |
420 | /* kpartx hack to remove partition number */ | |
421 | if (strncasecmp(dm_uuid_prefix, "part", 4) == 0) | |
422 | dm_uuid_prefix[4] = '\0'; | |
423 | ||
424 | res = xstrdup(dm_uuid_prefix); | |
425 | } | |
426 | } | |
427 | ||
428 | free(dm_uuid); | |
429 | if (!res) | |
430 | /* No UUID or no prefix - just mark it as DM device */ | |
431 | res = xstrdup("dm"); | |
432 | ||
433 | } else if (!strncmp(cxt->name, "loop", 4)) { | |
434 | res = xstrdup("loop"); | |
435 | ||
436 | } else if (!strncmp(cxt->name, "md", 2)) { | |
766ab9b0 | 437 | char *md_level = sysfs_strdup(&cxt->sysfs, "md/level"); |
18eac5ba MB |
438 | res = md_level ? md_level : xstrdup("md"); |
439 | ||
440 | } else { | |
441 | const char *type = cxt->partition ? "part" : "disk"; | |
90e9fcda | 442 | int x = 0; |
18eac5ba | 443 | |
90e9fcda KZ |
444 | sysfs_read_int(&cxt->sysfs, "device/type", &x); |
445 | ||
446 | switch (x) { | |
18eac5ba MB |
447 | case 0x0c: /* TYPE_RAID */ |
448 | type = "raid"; break; | |
449 | case 0x01: /* TYPE_TAPE */ | |
450 | type = "raid"; break; | |
451 | case 0x04: /* TYPE_WORM */ | |
452 | case 0x05: /* TYPE_ROM */ | |
453 | type = "rom"; break; | |
454 | case 0x07: /* TYPE_MOD */ | |
455 | type = "mo-disk"; break; | |
456 | case 0x0e: /* TYPE_RBC */ | |
457 | type = "rbc"; break; | |
458 | } | |
459 | ||
90e9fcda | 460 | res = xstrdup(type); |
18eac5ba MB |
461 | } |
462 | ||
463 | for (p = res; p && *p; p++) | |
464 | *p = tolower((unsigned char) *p); | |
465 | return res; | |
466 | } | |
467 | ||
2a4c734b MB |
468 | static void set_tt_data(struct blkdev_cxt *cxt, int col, int id, struct tt_line *ln) |
469 | { | |
470 | char buf[1024]; | |
9cfe1b9c | 471 | char *p = NULL; |
2a4c734b MB |
472 | |
473 | if (!cxt->st.st_rdev && (id == COL_OWNER || id == COL_GROUP || | |
474 | id == COL_MODE)) | |
475 | stat(cxt->filename, &cxt->st); | |
476 | ||
477 | switch(id) { | |
478 | case COL_NAME: | |
479 | if (cxt->dm_name) { | |
480 | snprintf(buf, sizeof(buf), "%s (%s)", | |
481 | cxt->dm_name, cxt->name); | |
482 | tt_line_set_data(ln, col, xstrdup(buf)); | |
483 | break; | |
484 | } | |
485 | case COL_KNAME: | |
486 | tt_line_set_data(ln, col, xstrdup(cxt->name)); | |
487 | break; | |
488 | case COL_OWNER: | |
489 | { | |
490 | struct passwd *pw = getpwuid(cxt->st.st_uid); | |
491 | if (pw) | |
492 | tt_line_set_data(ln, col, xstrdup(pw->pw_name)); | |
493 | break; | |
494 | } | |
495 | case COL_GROUP: | |
496 | { | |
497 | struct group *gr = getgrgid(cxt->st.st_gid); | |
498 | if (gr) | |
499 | tt_line_set_data(ln, col, xstrdup(gr->gr_name)); | |
500 | break; | |
501 | } | |
502 | case COL_MODE: | |
503 | { | |
504 | char md[11]; | |
505 | strmode(cxt->st.st_mode, md); | |
506 | tt_line_set_data(ln, col, xstrdup(md)); | |
507 | break; | |
508 | } | |
509 | case COL_MAJMIN: | |
6ea1bdd3 KZ |
510 | if ((lsblk->tt->flags & TT_FL_RAW) || |
511 | (lsblk->tt->flags & TT_FL_EXPORT)) | |
2a4c734b MB |
512 | snprintf(buf, sizeof(buf), "%u:%u", cxt->maj, cxt->min); |
513 | else | |
514 | snprintf(buf, sizeof(buf), "%3u:%-3u", cxt->maj, cxt->min); | |
515 | tt_line_set_data(ln, col, xstrdup(buf)); | |
516 | break; | |
517 | case COL_FSTYPE: | |
518 | probe_device(cxt); | |
519 | if (cxt->fstype) | |
520 | tt_line_set_data(ln, col, xstrdup(cxt->fstype)); | |
521 | break; | |
522 | case COL_TARGET: | |
523 | if (!cxt->nholders) { | |
524 | p = get_device_mountpoint(cxt); | |
525 | if (p) | |
526 | tt_line_set_data(ln, col, p); | |
527 | } | |
528 | break; | |
529 | case COL_LABEL: | |
530 | probe_device(cxt); | |
531 | if (cxt->label) | |
532 | tt_line_set_data(ln, col, xstrdup(cxt->label)); | |
533 | break; | |
534 | case COL_UUID: | |
535 | probe_device(cxt); | |
536 | if (cxt->uuid) | |
537 | tt_line_set_data(ln, col, xstrdup(cxt->uuid)); | |
538 | break; | |
539 | case COL_RO: | |
540 | tt_line_set_data(ln, col, is_readonly_device(cxt) ? | |
541 | xstrdup("1") : xstrdup("0")); | |
542 | break; | |
627970a7 | 543 | case COL_RM: |
766ab9b0 | 544 | p = sysfs_strdup(&cxt->sysfs, "removable"); |
2a4c734b | 545 | if (!p && cxt->parent) |
766ab9b0 | 546 | p = sysfs_strdup(&cxt->parent->sysfs, "removable"); |
2a4c734b MB |
547 | if (p) |
548 | tt_line_set_data(ln, col, p); | |
549 | break; | |
550 | case COL_ROTA: | |
766ab9b0 | 551 | p = sysfs_strdup(&cxt->sysfs, "queue/rotational"); |
2a4c734b MB |
552 | if (p) |
553 | tt_line_set_data(ln, col, p); | |
554 | break; | |
555 | case COL_MODEL: | |
556 | if (!cxt->partition && cxt->nslaves == 0) { | |
766ab9b0 | 557 | p = sysfs_strdup(&cxt->sysfs, "device/model"); |
2a4c734b MB |
558 | if (p) |
559 | tt_line_set_data(ln, col, p); | |
560 | } | |
561 | break; | |
562 | case COL_SIZE: | |
563 | if (cxt->size) { | |
564 | if (lsblk->bytes) { | |
565 | if (asprintf(&p, "%jd", cxt->size) < 0) | |
566 | p = NULL; | |
567 | } else | |
5d2a9849 | 568 | p = size_to_human_string(SIZE_SUFFIX_1LETTER, cxt->size); |
2a4c734b MB |
569 | if (p) |
570 | tt_line_set_data(ln, col, p); | |
571 | } | |
572 | break; | |
01e487c0 MB |
573 | case COL_STATE: |
574 | if (!cxt->partition && !cxt->dm_name) { | |
575 | p = sysfs_strdup(&cxt->sysfs, "device/state"); | |
576 | } else if (cxt->dm_name) { | |
577 | int x = 0; | |
578 | if (sysfs_read_int(&cxt->sysfs, "dm/suspended", &x) == 0) | |
579 | p = x ? xstrdup("suspended") : xstrdup("running"); | |
580 | } | |
581 | if (p) | |
582 | tt_line_set_data(ln, col, p); | |
583 | break; | |
2a4c734b | 584 | case COL_ALIOFF: |
766ab9b0 | 585 | p = sysfs_strdup(&cxt->sysfs, "alignment_offset"); |
2a4c734b MB |
586 | if (p) |
587 | tt_line_set_data(ln, col, p); | |
588 | break; | |
589 | case COL_MINIO: | |
766ab9b0 | 590 | p = sysfs_strdup(&cxt->sysfs, "queue/minimum_io_size"); |
2a4c734b MB |
591 | if (p) |
592 | tt_line_set_data(ln, col, p); | |
593 | break; | |
594 | case COL_OPTIO: | |
766ab9b0 | 595 | p = sysfs_strdup(&cxt->sysfs, "queue/optimal_io_size"); |
2a4c734b MB |
596 | if (p) |
597 | tt_line_set_data(ln, col, p); | |
598 | break; | |
599 | case COL_PHYSEC: | |
766ab9b0 | 600 | p = sysfs_strdup(&cxt->sysfs, "queue/physical_block_size"); |
2a4c734b MB |
601 | if (p) |
602 | tt_line_set_data(ln, col, p); | |
603 | break; | |
604 | case COL_LOGSEC: | |
766ab9b0 | 605 | p = sysfs_strdup(&cxt->sysfs, "queue/logical_block_size"); |
2a4c734b MB |
606 | if (p) |
607 | tt_line_set_data(ln, col, p); | |
608 | break; | |
609 | case COL_SCHED: | |
610 | p = get_scheduler(cxt); | |
611 | if (p) | |
612 | tt_line_set_data(ln, col, p); | |
613 | break; | |
64c9e22a MB |
614 | case COL_RQ_SIZE: |
615 | p = sysfs_strdup(&cxt->sysfs, "queue/nr_requests"); | |
616 | if (p) | |
617 | tt_line_set_data(ln, col, p); | |
618 | break; | |
18eac5ba MB |
619 | case COL_TYPE: |
620 | p = get_type(cxt); | |
621 | if (p) | |
622 | tt_line_set_data(ln, col, p); | |
623 | break; | |
2d232246 | 624 | case COL_DALIGN: |
766ab9b0 | 625 | p = sysfs_strdup(&cxt->sysfs, "discard_alignment"); |
98055888 | 626 | if (cxt->discard && p) |
2d232246 | 627 | tt_line_set_data(ln, col, p); |
98055888 MP |
628 | else |
629 | tt_line_set_data(ln, col, "0"); | |
2d232246 MP |
630 | break; |
631 | case COL_DGRAN: | |
9cfe1b9c KZ |
632 | if (lsblk->bytes) |
633 | p = sysfs_strdup(&cxt->sysfs, "queue/discard_granularity"); | |
634 | else { | |
635 | uint64_t x; | |
636 | ||
637 | if (sysfs_read_u64(&cxt->sysfs, | |
638 | "queue/discard_granularity", &x) == 0) | |
5d2a9849 | 639 | p = size_to_human_string(SIZE_SUFFIX_1LETTER, x); |
9cfe1b9c | 640 | } |
2d232246 MP |
641 | if (p) |
642 | tt_line_set_data(ln, col, p); | |
643 | break; | |
644 | case COL_DMAX: | |
9cfe1b9c KZ |
645 | if (lsblk->bytes) |
646 | p = sysfs_strdup(&cxt->sysfs, "queue/discard_max_bytes"); | |
647 | else { | |
648 | uint64_t x; | |
649 | ||
650 | if (sysfs_read_u64(&cxt->sysfs, | |
651 | "queue/discard_max_bytes", &x) == 0) | |
5d2a9849 | 652 | p = size_to_human_string(SIZE_SUFFIX_1LETTER, x); |
9cfe1b9c | 653 | } |
2d232246 MP |
654 | if (p) |
655 | tt_line_set_data(ln, col, p); | |
656 | break; | |
657 | case COL_DZERO: | |
766ab9b0 | 658 | p = sysfs_strdup(&cxt->sysfs, "queue/discard_zeroes_data"); |
98055888 | 659 | if (cxt->discard && p) |
2d232246 | 660 | tt_line_set_data(ln, col, p); |
98055888 MP |
661 | else |
662 | tt_line_set_data(ln, col, "0"); | |
2d232246 | 663 | break; |
2a4c734b MB |
664 | }; |
665 | } | |
666 | ||
667 | static void print_device(struct blkdev_cxt *cxt, struct tt_line *tt_parent) | |
668 | { | |
669 | int i; | |
670 | ||
671 | cxt->tt_line = tt_add_line(lsblk->tt, tt_parent); | |
672 | ||
673 | for (i = 0; i < ncolumns; i++) | |
674 | set_tt_data(cxt, i, get_column_id(i), cxt->tt_line); | |
675 | } | |
676 | ||
677 | static int set_cxt(struct blkdev_cxt *cxt, | |
678 | struct blkdev_cxt *parent, | |
679 | const char *name, | |
680 | int partition) | |
681 | { | |
766ab9b0 | 682 | dev_t devno; |
2a4c734b MB |
683 | |
684 | cxt->parent = parent; | |
685 | cxt->name = xstrdup(name); | |
686 | cxt->partition = partition; | |
687 | ||
688 | cxt->filename = get_device_path(cxt); | |
270e66ec MB |
689 | if (!cxt->filename) { |
690 | warnx(_("%s: failed to get device path"), name); | |
691 | return -1; | |
692 | } | |
2a4c734b | 693 | |
766ab9b0 KZ |
694 | devno = sysfs_devname_to_devno(name, |
695 | partition && parent ? parent->name : NULL); | |
270e66ec MB |
696 | if (!devno) { |
697 | warnx(_("%s: unknown device name"), name); | |
698 | return -1; | |
699 | } | |
2a4c734b | 700 | |
270e66ec MB |
701 | if (sysfs_init(&cxt->sysfs, devno, parent ? &parent->sysfs : NULL)) { |
702 | warnx(_("%s: failed to initialize sysfs handler"), name); | |
703 | return -1; | |
704 | } | |
766ab9b0 KZ |
705 | |
706 | cxt->maj = major(devno); | |
707 | cxt->min = minor(devno); | |
2a4c734b | 708 | |
90e9fcda KZ |
709 | sysfs_read_u64(&cxt->sysfs, "size", &cxt->size); /* in sectors */ |
710 | cxt->size <<= 9; /* in bytes */ | |
711 | ||
712 | sysfs_read_int(&cxt->sysfs, "queue/discard_granularity", &cxt->discard); | |
2a4c734b MB |
713 | |
714 | /* Ignore devices of zero size */ | |
715 | if (!lsblk->all_devices && cxt->size == 0) | |
716 | return -1; | |
717 | ||
766ab9b0 KZ |
718 | if (is_dm(name)) { |
719 | cxt->dm_name = sysfs_strdup(&cxt->sysfs, "dm/name"); | |
270e66ec MB |
720 | if (!cxt->dm_name) { |
721 | warnx(_("%s: failed to get dm name"), name); | |
722 | return -1; | |
723 | } | |
766ab9b0 KZ |
724 | } |
725 | cxt->nholders = sysfs_count_dirents(&cxt->sysfs, "holders") + | |
726 | sysfs_count_partitions(&cxt->sysfs, name); | |
2a4c734b | 727 | |
766ab9b0 | 728 | cxt->nslaves = sysfs_count_dirents(&cxt->sysfs, "slaves"); |
2a4c734b MB |
729 | |
730 | return 0; | |
731 | } | |
732 | ||
733 | /* | |
734 | * List devices (holders) mapped to device | |
735 | */ | |
736 | static int list_holders(struct blkdev_cxt *cxt) | |
737 | { | |
738 | DIR *dir; | |
739 | struct dirent *d; | |
740 | struct blkdev_cxt holder = {}; | |
741 | ||
742 | assert(cxt); | |
2a4c734b | 743 | |
f31505fe KZ |
744 | if (lsblk->nodeps) |
745 | return 0; | |
746 | ||
2a4c734b MB |
747 | if (!cxt->nholders) |
748 | return 0; | |
749 | ||
750 | /* Partitions */ | |
766ab9b0 | 751 | dir = sysfs_opendir(&cxt->sysfs, NULL); |
2a4c734b MB |
752 | if (!dir) |
753 | err(EXIT_FAILURE, _("failed to open device directory in sysfs")); | |
754 | ||
755 | while ((d = xreaddir(dir))) { | |
766ab9b0 | 756 | if (!sysfs_is_partition_dirent(dir, d, cxt->name)) |
2a4c734b MB |
757 | continue; |
758 | ||
270e66ec MB |
759 | if (set_cxt(&holder, cxt, d->d_name, 1)) { |
760 | reset_blkdev_cxt(&holder); | |
761 | continue; | |
762 | } | |
2a4c734b MB |
763 | print_device(&holder, cxt->tt_line); |
764 | list_holders(&holder); | |
765 | reset_blkdev_cxt(&holder); | |
766 | } | |
767 | closedir(dir); | |
768 | ||
769 | /* Holders */ | |
766ab9b0 | 770 | dir = sysfs_opendir(&cxt->sysfs, "holders"); |
2a4c734b MB |
771 | if (!dir) |
772 | return 0; | |
773 | ||
774 | while ((d = xreaddir(dir))) { | |
270e66ec MB |
775 | if (set_cxt(&holder, cxt, d->d_name, 0)) { |
776 | reset_blkdev_cxt(&holder); | |
777 | continue; | |
778 | } | |
2a4c734b MB |
779 | print_device(&holder, cxt->tt_line); |
780 | list_holders(&holder); | |
781 | reset_blkdev_cxt(&holder); | |
782 | } | |
783 | closedir(dir); | |
784 | ||
785 | return 0; | |
786 | } | |
787 | ||
788 | /* Iterate top-level devices in sysfs */ | |
789 | static int iterate_block_devices(void) | |
790 | { | |
791 | DIR *dir; | |
792 | struct dirent *d; | |
793 | struct blkdev_cxt cxt = {}; | |
794 | ||
795 | if (!(dir = opendir(_PATH_SYS_BLOCK))) | |
796 | return EXIT_FAILURE; | |
797 | ||
798 | while ((d = xreaddir(dir))) { | |
2a4c734b MB |
799 | if (set_cxt(&cxt, NULL, d->d_name, 0)) |
800 | goto next; | |
801 | ||
802 | /* Skip devices in the middle of dependence tree */ | |
803 | if (cxt.nslaves > 0) | |
804 | goto next; | |
805 | ||
806 | if (!lsblk->all_devices && is_maj_excluded(cxt.maj)) | |
807 | goto next; | |
808 | ||
809 | print_device(&cxt, NULL); | |
810 | list_holders(&cxt); | |
811 | next: | |
812 | reset_blkdev_cxt(&cxt); | |
813 | } | |
814 | ||
815 | closedir(dir); | |
816 | ||
817 | return EXIT_SUCCESS; | |
818 | } | |
819 | ||
820 | static int process_one_device(char *devname) | |
821 | { | |
822 | struct blkdev_cxt parent = {}, cxt = {}; | |
823 | struct stat st; | |
270e66ec | 824 | char buf[PATH_MAX + 1], *diskname = NULL; |
2a4c734b | 825 | dev_t disk = 0; |
270e66ec | 826 | int status = EXIT_FAILURE; |
2a4c734b MB |
827 | |
828 | if (stat(devname, &st) || !S_ISBLK(st.st_mode)) { | |
829 | warnx(_("%s: not a block device"), devname); | |
830 | return EXIT_FAILURE; | |
831 | } | |
832 | if (blkid_devno_to_wholedisk(st.st_rdev, buf, sizeof(buf), &disk)) { | |
1117f18f | 833 | warn(_("%s: failed to get whole-disk device number"), devname); |
2a4c734b MB |
834 | return EXIT_FAILURE; |
835 | } | |
270e66ec | 836 | if (st.st_rdev == disk) { |
2a4c734b MB |
837 | /* |
838 | * unpartitioned device | |
839 | */ | |
270e66ec MB |
840 | if (set_cxt(&cxt, NULL, buf, 0)) |
841 | goto leave; | |
842 | } else { | |
2a4c734b MB |
843 | /* |
844 | * Parititioned, read sysfs name of the device | |
845 | */ | |
eb9a65bb | 846 | ssize_t len; |
270e66ec | 847 | char path[PATH_MAX], *name; |
2a4c734b | 848 | |
270e66ec MB |
849 | if (!sysfs_devno_path(st.st_rdev, path, sizeof(path))) { |
850 | warn(_("failed to compose sysfs path for %s"), devname); | |
851 | goto leave; | |
852 | } | |
2a4c734b | 853 | |
766ab9b0 | 854 | diskname = xstrdup(buf); |
cc6b1d11 | 855 | len = readlink(path, buf, PATH_MAX); |
2a4c734b MB |
856 | if (len < 0) { |
857 | warn(_("%s: failed to read link"), path); | |
270e66ec | 858 | goto leave; |
2a4c734b MB |
859 | } |
860 | buf[len] = '\0'; | |
861 | ||
862 | /* sysfs device name */ | |
863 | name = strrchr(buf, '/') + 1; | |
864 | ||
270e66ec MB |
865 | if (set_cxt(&parent, NULL, diskname, 0)) |
866 | goto leave; | |
867 | if (set_cxt(&cxt, &parent, name, 1)) | |
868 | goto leave; | |
2a4c734b MB |
869 | } |
870 | ||
871 | print_device(&cxt, NULL); | |
872 | list_holders(&cxt); | |
270e66ec MB |
873 | status = EXIT_SUCCESS; |
874 | leave: | |
875 | free(diskname); | |
2a4c734b MB |
876 | reset_blkdev_cxt(&cxt); |
877 | ||
878 | if (st.st_rdev != disk) | |
879 | reset_blkdev_cxt(&parent); | |
880 | ||
270e66ec | 881 | return status; |
2a4c734b MB |
882 | } |
883 | ||
884 | static void parse_excludes(const char *str) | |
885 | { | |
886 | nexcludes = 0; | |
887 | ||
888 | while (str && *str) { | |
889 | char *end = NULL; | |
ed34643c | 890 | unsigned long n; |
2a4c734b MB |
891 | |
892 | errno = 0; | |
893 | n = strtoul(str, &end, 10); | |
894 | ||
895 | if (end == str || (errno != 0 && (n == ULONG_MAX || n == 0))) | |
896 | err(EXIT_FAILURE, _("failed to parse list '%s'"), str); | |
897 | excludes[nexcludes++] = n; | |
898 | ||
899 | if (nexcludes == ARRAY_SIZE(excludes)) | |
f14f02f5 | 900 | /* TRANSLATORS: The standard value for %d is 256. */ |
2a4c734b MB |
901 | errx(EXIT_FAILURE, _("the list of excluded devices is " |
902 | "too large (limit is %d devices)"), | |
903 | (int)ARRAY_SIZE(excludes)); | |
904 | str = end && *end ? end + 1 : NULL; | |
905 | } | |
906 | } | |
907 | ||
abafd686 | 908 | static void __attribute__((__noreturn__)) help(FILE *out) |
2a4c734b MB |
909 | { |
910 | int i; | |
911 | ||
912 | fprintf(out, _( | |
913 | "\nUsage:\n" | |
914 | " %s [options] [<device> ...]\n"), program_invocation_short_name); | |
915 | ||
916 | fprintf(out, _( | |
917 | "\nOptions:\n" | |
918 | " -a, --all print all devices\n" | |
919 | " -b, --bytes print SIZE in bytes rather than in human readable format\n" | |
f31505fe | 920 | " -d, --nodeps don't print slaves or holders\n" |
2d232246 | 921 | " -D, --discard print discard capabilities\n" |
2a4c734b MB |
922 | " -e, --exclude <list> exclude devices by major number (default: RAM disks)\n" |
923 | " -f, --fs output info about filesystems\n" | |
924 | " -h, --help usage information (this)\n" | |
925 | " -i, --ascii use ascii characters only\n" | |
926 | " -m, --perms output info about permissions\n" | |
927 | " -l, --list use list format ouput\n" | |
928 | " -n, --noheadings don't print headings\n" | |
929 | " -o, --output <list> output columns\n" | |
6ea1bdd3 KZ |
930 | " -P, --pairs use key=\"value\" output format\n" |
931 | " -r, --raw use raw output format\n" | |
2a4c734b MB |
932 | " -t, --topology output info about topology\n")); |
933 | ||
934 | fprintf(out, _("\nAvailable columns:\n")); | |
935 | ||
936 | for (i = 0; i < __NCOLUMNS; i++) | |
d015794e | 937 | fprintf(out, " %10s %s\n", infos[i].name, _(infos[i].help)); |
2a4c734b | 938 | |
f77fa578 | 939 | fprintf(out, _("\nFor more information see lsblk(8).\n")); |
2a4c734b MB |
940 | |
941 | exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); | |
942 | } | |
943 | ||
abafd686 | 944 | static void __attribute__((__noreturn__)) |
2a4c734b MB |
945 | errx_mutually_exclusive(const char *opts) |
946 | { | |
947 | errx(EXIT_FAILURE, "%s %s", opts, _("options are mutually exclusive")); | |
948 | } | |
949 | ||
f65b3bb6 SK |
950 | static void check_sysdevblock(void) |
951 | { | |
952 | if (access(_PATH_SYS_DEVBLOCK, R_OK) != 0) | |
953 | err(EXIT_FAILURE, _("failed to access sysfs directory: %s"), | |
954 | _PATH_SYS_DEVBLOCK); | |
955 | } | |
956 | ||
2a4c734b MB |
957 | int main(int argc, char *argv[]) |
958 | { | |
959 | struct lsblk _ls; | |
960 | int tt_flags = TT_FL_TREE; | |
961 | int i, c, status = EXIT_FAILURE; | |
962 | ||
6c7d5ae9 | 963 | static const struct option longopts[] = { |
2a4c734b | 964 | { "all", 0, 0, 'a' }, |
f31505fe KZ |
965 | { "bytes", 0, 0, 'b' }, |
966 | { "nodeps", 0, 0, 'd' }, | |
2d232246 | 967 | { "discard", 0, 0, 'D' }, |
2a4c734b MB |
968 | { "help", 0, 0, 'h' }, |
969 | { "output", 1, 0, 'o' }, | |
970 | { "perms", 0, 0, 'm' }, | |
971 | { "noheadings", 0, 0, 'n' }, | |
972 | { "list", 0, 0, 'l' }, | |
973 | { "ascii", 0, 0, 'i' }, | |
974 | { "raw", 0, 0, 'r' }, | |
975 | { "fs", 0, 0, 'f' }, | |
976 | { "exclude", 1, 0, 'e' }, | |
977 | { "topology", 0, 0, 't' }, | |
6ea1bdd3 | 978 | { "pairs", 0, 0, 'P' }, |
2a4c734b MB |
979 | { NULL, 0, 0, 0 }, |
980 | }; | |
981 | ||
982 | setlocale(LC_ALL, ""); | |
983 | bindtextdomain(PACKAGE, LOCALEDIR); | |
984 | textdomain(PACKAGE); | |
985 | ||
986 | lsblk = &_ls; | |
987 | memset(lsblk, 0, sizeof(*lsblk)); | |
988 | ||
6ea1bdd3 | 989 | while((c = getopt_long(argc, argv, "abdDe:fhlnmo:Pirt", longopts, NULL)) != -1) { |
2a4c734b MB |
990 | switch(c) { |
991 | case 'a': | |
992 | lsblk->all_devices = 1; | |
993 | break; | |
994 | case 'b': | |
995 | lsblk->bytes = 1; | |
996 | break; | |
f31505fe KZ |
997 | case 'd': |
998 | lsblk->nodeps = 1; | |
999 | break; | |
2d232246 MP |
1000 | case 'D': |
1001 | columns[ncolumns++] = COL_NAME; | |
1002 | columns[ncolumns++] = COL_DALIGN; | |
1003 | columns[ncolumns++] = COL_DGRAN; | |
1004 | columns[ncolumns++] = COL_DMAX; | |
1005 | columns[ncolumns++] = COL_DZERO; | |
1006 | break; | |
2a4c734b MB |
1007 | case 'e': |
1008 | parse_excludes(optarg); | |
1009 | break; | |
1010 | case 'h': | |
1011 | help(stdout); | |
1012 | break; | |
1013 | case 'l': | |
6ea1bdd3 KZ |
1014 | if ((tt_flags & TT_FL_RAW)|| (tt_flags & TT_FL_EXPORT)) |
1015 | errx_mutually_exclusive("--{raw,list,export}"); | |
2a4c734b MB |
1016 | |
1017 | tt_flags &= ~TT_FL_TREE; /* disable the default */ | |
1018 | break; | |
1019 | case 'n': | |
1020 | tt_flags |= TT_FL_NOHEADINGS; | |
1021 | break; | |
1022 | case 'o': | |
c87638ad | 1023 | ncolumns = string_to_idarray(optarg, |
bdc3ed66 KZ |
1024 | columns, ARRAY_SIZE(columns), |
1025 | column_name_to_id); | |
1026 | if (ncolumns < 0) | |
2a4c734b MB |
1027 | return EXIT_FAILURE; |
1028 | break; | |
6ea1bdd3 KZ |
1029 | case 'P': |
1030 | tt_flags |= TT_FL_EXPORT; | |
1031 | tt_flags &= ~TT_FL_TREE; /* disable the default */ | |
1032 | break; | |
2a4c734b | 1033 | case 'i': |
449f9336 | 1034 | tt_flags |= TT_FL_ASCII; |
2a4c734b MB |
1035 | break; |
1036 | case 'r': | |
1037 | tt_flags &= ~TT_FL_TREE; /* disable the default */ | |
1038 | tt_flags |= TT_FL_RAW; /* enable raw */ | |
1039 | break; | |
1040 | case 'f': | |
1041 | columns[ncolumns++] = COL_NAME; | |
1042 | columns[ncolumns++] = COL_FSTYPE; | |
1043 | columns[ncolumns++] = COL_LABEL; | |
1044 | columns[ncolumns++] = COL_TARGET; | |
1045 | break; | |
1046 | case 'm': | |
1047 | columns[ncolumns++] = COL_NAME; | |
1048 | columns[ncolumns++] = COL_SIZE; | |
1049 | columns[ncolumns++] = COL_OWNER; | |
1050 | columns[ncolumns++] = COL_GROUP; | |
1051 | columns[ncolumns++] = COL_MODE; | |
1052 | break; | |
1053 | case 't': | |
1054 | columns[ncolumns++] = COL_NAME; | |
1055 | columns[ncolumns++] = COL_ALIOFF; | |
1056 | columns[ncolumns++] = COL_MINIO; | |
1057 | columns[ncolumns++] = COL_OPTIO; | |
1058 | columns[ncolumns++] = COL_PHYSEC; | |
1059 | columns[ncolumns++] = COL_LOGSEC; | |
1060 | columns[ncolumns++] = COL_ROTA; | |
1061 | columns[ncolumns++] = COL_SCHED; | |
64c9e22a | 1062 | columns[ncolumns++] = COL_RQ_SIZE; |
2a4c734b MB |
1063 | break; |
1064 | default: | |
1065 | help(stderr); | |
1066 | } | |
1067 | } | |
1068 | ||
f65b3bb6 SK |
1069 | check_sysdevblock(); |
1070 | ||
2a4c734b MB |
1071 | if (!ncolumns) { |
1072 | columns[ncolumns++] = COL_NAME; | |
1073 | columns[ncolumns++] = COL_MAJMIN; | |
627970a7 | 1074 | columns[ncolumns++] = COL_RM; |
2a4c734b MB |
1075 | columns[ncolumns++] = COL_SIZE; |
1076 | columns[ncolumns++] = COL_RO; | |
18eac5ba | 1077 | columns[ncolumns++] = COL_TYPE; |
2a4c734b MB |
1078 | columns[ncolumns++] = COL_TARGET; |
1079 | } | |
1080 | ||
1081 | if (nexcludes && lsblk->all_devices) | |
1082 | errx_mutually_exclusive("--{all,exclude}"); | |
1083 | else if (!nexcludes) | |
1084 | excludes[nexcludes++] = 1; /* default: ignore RAM disks */ | |
1085 | /* | |
1086 | * initialize output columns | |
1087 | */ | |
1088 | if (!(lsblk->tt = tt_new_table(tt_flags))) | |
1089 | errx(EXIT_FAILURE, _("failed to initialize output table")); | |
1090 | ||
1091 | for (i = 0; i < ncolumns; i++) { | |
1092 | struct colinfo *ci = get_column_info(i); | |
1093 | int fl = ci->flags; | |
1094 | ||
1095 | if (!(tt_flags & TT_FL_TREE) && get_column_id(i) == COL_NAME) | |
1096 | fl &= ~TT_FL_TREE; | |
1097 | ||
1098 | if (!tt_define_column(lsblk->tt, ci->name, ci->whint, fl)) { | |
1099 | warn(_("failed to initialize output column")); | |
1100 | goto leave; | |
1101 | } | |
1102 | } | |
1103 | ||
1104 | if (optind == argc) | |
1105 | status = iterate_block_devices(); | |
1106 | else while (optind < argc) | |
1107 | status = process_one_device(argv[optind++]); | |
1108 | ||
1109 | tt_print_table(lsblk->tt); | |
1110 | ||
1111 | leave: | |
1112 | tt_free_table(lsblk->tt); | |
1113 | return status; | |
1114 | } |