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Commit | Line | Data |
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2a4c734b | 1 | /* |
f77fa578 | 2 | * lsblk(8) - list block devices |
2a4c734b | 3 | * |
28ffc2b7 | 4 | * Copyright (C) 2010,2011,2012 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 | * | |
7cebf0bb SK |
18 | * You should have received a copy of the GNU General Public License along |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
2a4c734b MB |
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> | |
9554f7ab | 43 | #include <libmount.h> |
9bd4e5c0 | 44 | #include <libsmartcols.h> |
2a4c734b | 45 | |
f17f5f48 IM |
46 | #ifdef HAVE_LIBUDEV |
47 | #include <libudev.h> | |
48 | #endif | |
49 | ||
2a4c734b MB |
50 | #include <assert.h> |
51 | ||
540d506f | 52 | #include "c.h" |
2a4c734b MB |
53 | #include "pathnames.h" |
54 | #include "blkdev.h" | |
55 | #include "canonicalize.h" | |
2a4c734b | 56 | #include "nls.h" |
2a4c734b MB |
57 | #include "xalloc.h" |
58 | #include "strutils.h" | |
540d506f | 59 | #include "at.h" |
766ab9b0 | 60 | #include "sysfs.h" |
c05a80ca | 61 | #include "closestream.h" |
d324270e | 62 | #include "mangle.h" |
05187653 | 63 | #include "optutils.h" |
2a4c734b MB |
64 | |
65 | /* column IDs */ | |
66 | enum { | |
67 | COL_NAME = 0, | |
68 | COL_KNAME, | |
69 | COL_MAJMIN, | |
70 | COL_FSTYPE, | |
71 | COL_TARGET, | |
72 | COL_LABEL, | |
73 | COL_UUID, | |
4686ba17 | 74 | COL_PARTTYPE, |
aa0903e0 KZ |
75 | COL_PARTLABEL, |
76 | COL_PARTUUID, | |
5a2fd932 | 77 | COL_PARTFLAGS, |
150db7a9 | 78 | COL_RA, |
2a4c734b | 79 | COL_RO, |
627970a7 | 80 | COL_RM, |
2a4c734b | 81 | COL_MODEL, |
460c7afb | 82 | COL_SERIAL, |
2a4c734b | 83 | COL_SIZE, |
01e487c0 | 84 | COL_STATE, |
2a4c734b MB |
85 | COL_OWNER, |
86 | COL_GROUP, | |
87 | COL_MODE, | |
88 | COL_ALIOFF, | |
89 | COL_MINIO, | |
90 | COL_OPTIO, | |
91 | COL_PHYSEC, | |
92 | COL_LOGSEC, | |
93 | COL_ROTA, | |
94 | COL_SCHED, | |
64c9e22a | 95 | COL_RQ_SIZE, |
18eac5ba | 96 | COL_TYPE, |
2d232246 MP |
97 | COL_DALIGN, |
98 | COL_DGRAN, | |
99 | COL_DMAX, | |
100 | COL_DZERO, | |
2adb1a44 | 101 | COL_WSAME, |
88ca32b3 | 102 | COL_WWN, |
12b06c3d | 103 | COL_RAND, |
310c0603 | 104 | COL_PKNAME, |
699e5c4f | 105 | COL_HCTL, |
a5fb4d23 | 106 | COL_TRANSPORT, |
d6681cee | 107 | COL_REV, |
99f43b72 | 108 | COL_VENDOR, |
2a4c734b MB |
109 | }; |
110 | ||
9bd4e5c0 OO |
111 | /* basic table settings */ |
112 | enum { | |
113 | LSBLK_ASCII = (1 << 0), | |
114 | LSBLK_RAW = (1 << 1), | |
115 | LSBLK_NOHEADINGS = (1 << 2), | |
bb6e822a KZ |
116 | LSBLK_EXPORT = (1 << 3), |
117 | LSBLK_TREE = (1 << 4), | |
9bd4e5c0 OO |
118 | }; |
119 | ||
642048e4 KZ |
120 | enum { |
121 | SORT_STRING = 0, /* default is to use scols_cell_get_data() */ | |
122 | SORT_U64 = 1 /* use private pointer from scols_cell_get_userdata() */ | |
123 | }; | |
124 | ||
2a4c734b MB |
125 | /* column names */ |
126 | struct colinfo { | |
127 | const char *name; /* header */ | |
128 | double whint; /* width hint (N < 1 is in percent of termwidth) */ | |
9bd4e5c0 | 129 | int flags; /* SCOLS_FL_* */ |
2a4c734b | 130 | const char *help; |
642048e4 KZ |
131 | |
132 | int sort_type; /* SORT_* */ | |
2a4c734b MB |
133 | }; |
134 | ||
135 | /* columns descriptions */ | |
507d39c2 | 136 | static struct colinfo infos[] = { |
9bd4e5c0 | 137 | [COL_NAME] = { "NAME", 0.25, SCOLS_FL_TREE | SCOLS_FL_NOEXTREMES, N_("device name") }, |
e22d8b95 | 138 | [COL_KNAME] = { "KNAME", 0.3, 0, N_("internal kernel device name") }, |
310c0603 | 139 | [COL_PKNAME] = { "PKNAME", 0.3, 0, N_("internal parent kernel device name") }, |
642048e4 | 140 | [COL_MAJMIN] = { "MAJ:MIN", 6, 0, N_("major:minor device number"), SORT_U64 }, |
9bd4e5c0 OO |
141 | [COL_FSTYPE] = { "FSTYPE", 0.1, SCOLS_FL_TRUNC, N_("filesystem type") }, |
142 | [COL_TARGET] = { "MOUNTPOINT", 0.10, SCOLS_FL_TRUNC, N_("where the device is mounted") }, | |
2a4c734b MB |
143 | [COL_LABEL] = { "LABEL", 0.1, 0, N_("filesystem LABEL") }, |
144 | [COL_UUID] = { "UUID", 36, 0, N_("filesystem UUID") }, | |
aa0903e0 | 145 | |
4686ba17 | 146 | [COL_PARTTYPE] = { "PARTTYPE", 36, 0, N_("partition type UUID") }, |
aa0903e0 KZ |
147 | [COL_PARTLABEL] = { "PARTLABEL", 0.1, 0, N_("partition LABEL") }, |
148 | [COL_PARTUUID] = { "PARTUUID", 36, 0, N_("partition UUID") }, | |
5a2fd932 | 149 | [COL_PARTFLAGS] = { "PARTFLAGS", 36, 0, N_("partition flags") }, |
aa0903e0 | 150 | |
642048e4 | 151 | [COL_RA] = { "RA", 3, SCOLS_FL_RIGHT, N_("read-ahead of the device"), SORT_U64 }, |
9bd4e5c0 OO |
152 | [COL_RO] = { "RO", 1, SCOLS_FL_RIGHT, N_("read-only device") }, |
153 | [COL_RM] = { "RM", 1, SCOLS_FL_RIGHT, N_("removable device") }, | |
154 | [COL_ROTA] = { "ROTA", 1, SCOLS_FL_RIGHT, N_("rotational device") }, | |
155 | [COL_RAND] = { "RAND", 1, SCOLS_FL_RIGHT, N_("adds randomness") }, | |
156 | [COL_MODEL] = { "MODEL", 0.1, SCOLS_FL_TRUNC, N_("device identifier") }, | |
157 | [COL_SERIAL] = { "SERIAL", 0.1, SCOLS_FL_TRUNC, N_("disk serial number") }, | |
642048e4 | 158 | [COL_SIZE] = { "SIZE", 5, SCOLS_FL_RIGHT, N_("size of the device"), SORT_U64 }, |
9bd4e5c0 OO |
159 | [COL_STATE] = { "STATE", 7, SCOLS_FL_TRUNC, N_("state of the device") }, |
160 | [COL_OWNER] = { "OWNER", 0.1, SCOLS_FL_TRUNC, N_("user name"), }, | |
161 | [COL_GROUP] = { "GROUP", 0.1, SCOLS_FL_TRUNC, N_("group name") }, | |
2a4c734b | 162 | [COL_MODE] = { "MODE", 10, 0, N_("device node permissions") }, |
642048e4 KZ |
163 | [COL_ALIOFF] = { "ALIGNMENT", 6, SCOLS_FL_RIGHT, N_("alignment offset"), SORT_U64 }, |
164 | [COL_MINIO] = { "MIN-IO", 6, SCOLS_FL_RIGHT, N_("minimum I/O size"), SORT_U64 }, | |
165 | [COL_OPTIO] = { "OPT-IO", 6, SCOLS_FL_RIGHT, N_("optimal I/O size"), SORT_U64 }, | |
166 | [COL_PHYSEC] = { "PHY-SEC", 7, SCOLS_FL_RIGHT, N_("physical sector size"), SORT_U64 }, | |
167 | [COL_LOGSEC] = { "LOG-SEC", 7, SCOLS_FL_RIGHT, N_("logical sector size"), SORT_U64 }, | |
18eac5ba | 168 | [COL_SCHED] = { "SCHED", 0.1, 0, N_("I/O scheduler name") }, |
642048e4 | 169 | [COL_RQ_SIZE]= { "RQ-SIZE", 5, SCOLS_FL_RIGHT, N_("request queue size"), SORT_U64 }, |
2d232246 | 170 | [COL_TYPE] = { "TYPE", 4, 0, N_("device type") }, |
642048e4 KZ |
171 | [COL_DALIGN] = { "DISC-ALN", 6, SCOLS_FL_RIGHT, N_("discard alignment offset"), SORT_U64 }, |
172 | [COL_DGRAN] = { "DISC-GRAN", 6, SCOLS_FL_RIGHT, N_("discard granularity"), SORT_U64 }, | |
173 | [COL_DMAX] = { "DISC-MAX", 6, SCOLS_FL_RIGHT, N_("discard max bytes"), SORT_U64 }, | |
9bd4e5c0 | 174 | [COL_DZERO] = { "DISC-ZERO", 1, SCOLS_FL_RIGHT, N_("discard zeroes data") }, |
642048e4 | 175 | [COL_WSAME] = { "WSAME", 6, SCOLS_FL_RIGHT, N_("write same max bytes"), SORT_U64 }, |
88ca32b3 | 176 | [COL_WWN] = { "WWN", 18, 0, N_("unique storage identifier") }, |
699e5c4f | 177 | [COL_HCTL] = { "HCTL", 10, 0, N_("Host:Channel:Target:Lun for SCSI") }, |
a5fb4d23 | 178 | [COL_TRANSPORT] = { "TRAN", 6, 0, N_("device transport type") }, |
9bd4e5c0 OO |
179 | [COL_REV] = { "REV", 4, SCOLS_FL_RIGHT, N_("device revision") }, |
180 | [COL_VENDOR] = { "VENDOR", 0.1, SCOLS_FL_TRUNC, N_("device vendor") }, | |
2a4c734b MB |
181 | }; |
182 | ||
183 | struct lsblk { | |
9bd4e5c0 | 184 | struct libscols_table *table; /* output table */ |
642048e4 KZ |
185 | struct libscols_column *sort_col;/* sort output by this colum */ |
186 | int sort_id; | |
187 | ||
2dc03af7 | 188 | unsigned int all_devices:1; /* print all devices, including empty */ |
9feec79c | 189 | unsigned int bytes:1; /* print SIZE in bytes */ |
09a71aa1 | 190 | unsigned int inverse:1; /* print inverse dependencies */ |
9feec79c | 191 | unsigned int nodeps:1; /* don't print slaves/holders */ |
28ffc2b7 | 192 | unsigned int scsi:1; /* print only device with HCTL (SCSI) */ |
c7e76cd1 | 193 | unsigned int paths:1; /* print devnames with "/dev" prefix */ |
2a4c734b MB |
194 | }; |
195 | ||
196 | struct lsblk *lsblk; /* global handler */ | |
507d39c2 DB |
197 | |
198 | #define NCOLS ARRAY_SIZE(infos) | |
2ef4e8ba KZ |
199 | static int columns[NCOLS];/* enabled columns */ |
200 | static int ncolumns; /* number of enabled columns */ | |
2a4c734b | 201 | |
f6da50d4 BV |
202 | static int excludes[256]; |
203 | static size_t nexcludes; | |
2a4c734b | 204 | |
2ef4e8ba KZ |
205 | static int includes[256]; |
206 | static size_t nincludes; | |
207 | ||
9554f7ab KZ |
208 | static struct libmnt_table *mtab, *swaps; |
209 | static struct libmnt_cache *mntcache; | |
210 | ||
d44e3391 KZ |
211 | #ifdef HAVE_LIBUDEV |
212 | struct udev *udev; | |
213 | #endif | |
214 | ||
2a4c734b MB |
215 | struct blkdev_cxt { |
216 | struct blkdev_cxt *parent; | |
217 | ||
9bd4e5c0 | 218 | struct libscols_line *scols_line; |
2a4c734b MB |
219 | struct stat st; |
220 | ||
221 | char *name; /* kernel name in /sys/block */ | |
222 | char *dm_name; /* DM name (dm/block) */ | |
223 | ||
224 | char *filename; /* path to device node */ | |
766ab9b0 KZ |
225 | |
226 | struct sysfs_cxt sysfs; | |
2a4c734b MB |
227 | |
228 | int partition; /* is partition? TRUE/FALSE */ | |
229 | ||
230 | int probed; /* already probed */ | |
231 | char *fstype; /* detected fs, NULL or "?" if cannot detect */ | |
aa0903e0 KZ |
232 | char *uuid; /* filesystem UUID (or stack uuid) */ |
233 | char *label; /* filesystem label */ | |
4686ba17 | 234 | char *parttype; /* partiton type UUID */ |
aa0903e0 KZ |
235 | char *partuuid; /* partition UUID */ |
236 | char *partlabel; /* partiton label */ | |
5a2fd932 | 237 | char *partflags; /* partition flags */ |
88ca32b3 | 238 | char *wwn; /* storage WWN */ |
460c7afb | 239 | char *serial; /* disk serial number */ |
2a4c734b | 240 | |
09a71aa1 | 241 | int npartitions; /* # of partitions this device has */ |
2a4c734b | 242 | int nholders; /* # of devices mapped directly to this device |
09a71aa1 | 243 | * /sys/block/.../holders */ |
2a4c734b MB |
244 | int nslaves; /* # of devices this device maps to */ |
245 | int maj, min; /* devno */ | |
98055888 | 246 | int discard; /* supports discard */ |
2a4c734b MB |
247 | |
248 | uint64_t size; /* device size */ | |
249 | }; | |
250 | ||
251 | static int is_maj_excluded(int maj) | |
252 | { | |
6aace32f | 253 | size_t i; |
2a4c734b MB |
254 | |
255 | assert(ARRAY_SIZE(excludes) > nexcludes); | |
256 | ||
2ef4e8ba KZ |
257 | if (!nexcludes) |
258 | return 0; /* filter not enabled, device not exluded */ | |
259 | ||
2a4c734b MB |
260 | for (i = 0; i < nexcludes; i++) |
261 | if (excludes[i] == maj) | |
262 | return 1; | |
263 | return 0; | |
264 | } | |
265 | ||
2ef4e8ba KZ |
266 | static int is_maj_included(int maj) |
267 | { | |
268 | size_t i; | |
269 | ||
270 | assert(ARRAY_SIZE(includes) > nincludes); | |
271 | ||
272 | if (!nincludes) | |
273 | return 1; /* filter not enabled, device is included */ | |
274 | ||
275 | for (i = 0; i < nincludes; i++) | |
276 | if (includes[i] == maj) | |
277 | return 1; | |
278 | return 0; | |
279 | } | |
280 | ||
2a4c734b MB |
281 | /* array with IDs of enabled columns */ |
282 | static int get_column_id(int num) | |
283 | { | |
507d39c2 | 284 | assert(ARRAY_SIZE(columns) == NCOLS); |
2a4c734b | 285 | assert(num < ncolumns); |
507d39c2 | 286 | assert(columns[num] < (int) NCOLS); |
2a4c734b MB |
287 | return columns[num]; |
288 | } | |
289 | ||
290 | static struct colinfo *get_column_info(int num) | |
291 | { | |
292 | return &infos[ get_column_id(num) ]; | |
293 | } | |
294 | ||
2a4c734b MB |
295 | static int column_name_to_id(const char *name, size_t namesz) |
296 | { | |
507d39c2 | 297 | size_t i; |
2a4c734b | 298 | |
507d39c2 | 299 | for (i = 0; i < NCOLS; i++) { |
2a4c734b MB |
300 | const char *cn = infos[i].name; |
301 | ||
302 | if (!strncasecmp(name, cn, namesz) && !*(cn + namesz)) | |
303 | return i; | |
304 | } | |
305 | warnx(_("unknown column: %s"), name); | |
306 | return -1; | |
307 | } | |
308 | ||
642048e4 KZ |
309 | static int column_id_to_number(int id) |
310 | { | |
311 | size_t i; | |
312 | ||
313 | for (i = 0; i < (size_t) ncolumns; i++) | |
314 | if (columns[i] == id) | |
315 | return i; | |
316 | return -1; | |
317 | } | |
318 | ||
2a4c734b MB |
319 | static void reset_blkdev_cxt(struct blkdev_cxt *cxt) |
320 | { | |
321 | if (!cxt) | |
322 | return; | |
323 | free(cxt->name); | |
324 | free(cxt->dm_name); | |
325 | free(cxt->filename); | |
326 | free(cxt->fstype); | |
327 | free(cxt->uuid); | |
328 | free(cxt->label); | |
4686ba17 | 329 | free(cxt->parttype); |
aa0903e0 KZ |
330 | free(cxt->partuuid); |
331 | free(cxt->partlabel); | |
88ca32b3 | 332 | free(cxt->wwn); |
460c7afb | 333 | free(cxt->serial); |
2a4c734b | 334 | |
766ab9b0 | 335 | sysfs_deinit(&cxt->sysfs); |
2a4c734b MB |
336 | |
337 | memset(cxt, 0, sizeof(*cxt)); | |
338 | } | |
339 | ||
340 | static int is_dm(const char *name) | |
341 | { | |
342 | return strncmp(name, "dm-", 3) ? 0 : 1; | |
343 | } | |
344 | ||
345 | static struct dirent *xreaddir(DIR *dp) | |
346 | { | |
347 | struct dirent *d; | |
348 | ||
349 | assert(dp); | |
350 | ||
351 | while ((d = readdir(dp))) { | |
352 | if (!strcmp(d->d_name, ".") || | |
353 | !strcmp(d->d_name, "..")) | |
354 | continue; | |
355 | ||
356 | /* blacklist here? */ | |
357 | break; | |
358 | } | |
359 | return d; | |
360 | } | |
361 | ||
2a4c734b MB |
362 | static char *get_device_path(struct blkdev_cxt *cxt) |
363 | { | |
364 | char path[PATH_MAX]; | |
365 | ||
366 | assert(cxt); | |
367 | assert(cxt->name); | |
368 | ||
369 | if (is_dm(cxt->name)) | |
370 | return canonicalize_dm_name(cxt->name); | |
371 | ||
372 | snprintf(path, sizeof(path), "/dev/%s", cxt->name); | |
373 | return xstrdup(path); | |
374 | } | |
375 | ||
9554f7ab KZ |
376 | static int is_active_swap(const char *filename) |
377 | { | |
378 | if (!swaps) { | |
379 | swaps = mnt_new_table(); | |
380 | if (!swaps) | |
381 | return 0; | |
382 | if (!mntcache) | |
383 | mntcache = mnt_new_cache(); | |
384 | ||
385 | mnt_table_set_cache(swaps, mntcache); | |
386 | mnt_table_parse_swaps(swaps, NULL); | |
387 | } | |
388 | ||
389 | return mnt_table_find_srcpath(swaps, filename, MNT_ITER_BACKWARD) != 0; | |
390 | } | |
391 | ||
2a4c734b MB |
392 | static char *get_device_mountpoint(struct blkdev_cxt *cxt) |
393 | { | |
9554f7ab KZ |
394 | struct libmnt_fs *fs; |
395 | const char *fsroot; | |
2a4c734b | 396 | |
270e66ec MB |
397 | assert(cxt); |
398 | assert(cxt->filename); | |
399 | ||
9554f7ab KZ |
400 | if (!mtab) { |
401 | mtab = mnt_new_table(); | |
402 | if (!mtab) | |
403 | return NULL; | |
404 | if (!mntcache) | |
405 | mntcache = mnt_new_cache(); | |
2a4c734b | 406 | |
9554f7ab KZ |
407 | mnt_table_set_cache(mtab, mntcache); |
408 | mnt_table_parse_mtab(mtab, NULL); | |
2a4c734b | 409 | } |
9554f7ab | 410 | |
da531dd8 KZ |
411 | /* Note that maj:min in /proc/self/mouninfo does not have to match with |
412 | * devno as returned by stat(), so we have to try devname too | |
413 | */ | |
414 | fs = mnt_table_find_devno(mtab, makedev(cxt->maj, cxt->min), MNT_ITER_BACKWARD); | |
415 | if (!fs) | |
416 | fs = mnt_table_find_srcpath(mtab, cxt->filename, MNT_ITER_BACKWARD); | |
9554f7ab KZ |
417 | if (!fs) |
418 | return is_active_swap(cxt->filename) ? xstrdup("[SWAP]") : NULL; | |
419 | ||
420 | /* found */ | |
421 | fsroot = mnt_fs_get_root(fs); | |
422 | if (fsroot && strcmp(fsroot, "/") != 0) { | |
423 | /* hmm.. we found bind mount or btrfs subvolume, let's try to | |
424 | * get real FS root mountpoint */ | |
425 | struct libmnt_fs *rfs; | |
426 | struct libmnt_iter *itr = mnt_new_iter(MNT_ITER_BACKWARD); | |
427 | ||
428 | mnt_table_set_iter(mtab, itr, fs); | |
429 | while (mnt_table_next_fs(mtab, itr, &rfs) == 0) { | |
430 | fsroot = mnt_fs_get_root(rfs); | |
431 | if ((!fsroot || strcmp(fsroot, "/") == 0) | |
432 | && mnt_fs_match_source(rfs, cxt->filename, mntcache)) { | |
433 | fs = rfs; | |
434 | break; | |
435 | } | |
436 | } | |
437 | mnt_free_iter(itr); | |
438 | } | |
439 | ||
440 | return xstrdup(mnt_fs_get_target(fs)); | |
2a4c734b MB |
441 | } |
442 | ||
f17f5f48 | 443 | #ifndef HAVE_LIBUDEV |
88ca32b3 | 444 | static int get_udev_properties(struct blkdev_cxt *cxt |
f17f5f48 IM |
445 | __attribute__((__unused__))) |
446 | { | |
447 | return -1; | |
448 | } | |
449 | #else | |
88ca32b3 | 450 | static int get_udev_properties(struct blkdev_cxt *cxt) |
f17f5f48 | 451 | { |
f17f5f48 IM |
452 | struct udev_device *dev; |
453 | ||
88ca32b3 KZ |
454 | if (cxt->probed) |
455 | return 0; /* already done */ | |
456 | ||
d44e3391 KZ |
457 | if (!udev) |
458 | udev = udev_new(); | |
f17f5f48 IM |
459 | if (!udev) |
460 | return -1; | |
461 | ||
462 | dev = udev_device_new_from_subsystem_sysname(udev, "block", cxt->name); | |
463 | if (dev) { | |
464 | const char *data; | |
465 | ||
88ca32b3 | 466 | if ((data = udev_device_get_property_value(dev, "ID_FS_LABEL_ENC"))) { |
f17f5f48 | 467 | cxt->label = xstrdup(data); |
d324270e KZ |
468 | unhexmangle_string(cxt->label); |
469 | } | |
88ca32b3 | 470 | if ((data = udev_device_get_property_value(dev, "ID_FS_UUID_ENC"))) { |
f17f5f48 | 471 | cxt->uuid = xstrdup(data); |
88ca32b3 KZ |
472 | unhexmangle_string(cxt->uuid); |
473 | } | |
d324270e | 474 | if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_NAME"))) { |
aa0903e0 | 475 | cxt->partlabel = xstrdup(data); |
d324270e KZ |
476 | unhexmangle_string(cxt->partlabel); |
477 | } | |
88ca32b3 KZ |
478 | if ((data = udev_device_get_property_value(dev, "ID_FS_TYPE"))) |
479 | cxt->fstype = xstrdup(data); | |
4686ba17 MM |
480 | if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE"))) |
481 | cxt->parttype = xstrdup(data); | |
88ca32b3 KZ |
482 | if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_UUID"))) |
483 | cxt->partuuid = xstrdup(data); | |
5a2fd932 KZ |
484 | if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_FLAGS"))) |
485 | cxt->partflags = xstrdup(data); | |
88ca32b3 KZ |
486 | if ((data = udev_device_get_property_value(dev, "ID_WWN"))) |
487 | cxt->wwn = xstrdup(data); | |
460c7afb KZ |
488 | if ((data = udev_device_get_property_value(dev, "ID_SERIAL_SHORT"))) |
489 | cxt->serial = xstrdup(data); | |
f17f5f48 | 490 | udev_device_unref(dev); |
88ca32b3 | 491 | cxt->probed = 1; |
f17f5f48 IM |
492 | } |
493 | ||
88ca32b3 KZ |
494 | return cxt->probed == 1 ? 0 : -1; |
495 | ||
f17f5f48 IM |
496 | } |
497 | #endif /* HAVE_LIBUDEV */ | |
498 | ||
2a4c734b MB |
499 | static void probe_device(struct blkdev_cxt *cxt) |
500 | { | |
2a4c734b MB |
501 | blkid_probe pr = NULL; |
502 | ||
503 | if (cxt->probed) | |
504 | return; | |
f17f5f48 | 505 | |
2a4c734b MB |
506 | if (!cxt->size) |
507 | return; | |
508 | ||
f17f5f48 | 509 | /* try udev DB */ |
88ca32b3 | 510 | if (get_udev_properties(cxt) == 0) |
f17f5f48 IM |
511 | return; /* success */ |
512 | ||
88ca32b3 KZ |
513 | cxt->probed = 1; |
514 | ||
515 | /* try libblkid (fallback) */ | |
516 | if (getuid() != 0) | |
517 | return; /* no permissions to read from the device */ | |
518 | ||
2a4c734b MB |
519 | pr = blkid_new_probe_from_filename(cxt->filename); |
520 | if (!pr) | |
521 | return; | |
522 | ||
2a4c734b MB |
523 | blkid_probe_enable_superblocks(pr, 1); |
524 | blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_LABEL | | |
525 | BLKID_SUBLKS_UUID | | |
526 | BLKID_SUBLKS_TYPE); | |
aa0903e0 KZ |
527 | blkid_probe_enable_partitions(pr, 1); |
528 | blkid_probe_set_partitions_flags(pr, BLKID_PARTS_ENTRY_DETAILS); | |
529 | ||
2a4c734b MB |
530 | if (!blkid_do_safeprobe(pr)) { |
531 | const char *data = NULL; | |
532 | ||
533 | if (!blkid_probe_lookup_value(pr, "TYPE", &data, NULL)) | |
534 | cxt->fstype = xstrdup(data); | |
535 | if (!blkid_probe_lookup_value(pr, "UUID", &data, NULL)) | |
536 | cxt->uuid = xstrdup(data); | |
537 | if (!blkid_probe_lookup_value(pr, "LABEL", &data, NULL)) | |
538 | cxt->label = xstrdup(data); | |
4686ba17 MM |
539 | if (!blkid_probe_lookup_value(pr, "PART_ENTRY_TYPE", &data, NULL)) |
540 | cxt->parttype = xstrdup(data); | |
aa0903e0 KZ |
541 | if (!blkid_probe_lookup_value(pr, "PART_ENTRY_UUID", &data, NULL)) |
542 | cxt->partuuid = xstrdup(data); | |
543 | if (!blkid_probe_lookup_value(pr, "PART_ENTRY_NAME", &data, NULL)) | |
544 | cxt->partlabel = xstrdup(data); | |
5a2fd932 KZ |
545 | if (!blkid_probe_lookup_value(pr, "PART_ENTRY_FLAGS", &data, NULL)) |
546 | cxt->partflags = xstrdup(data); | |
2a4c734b MB |
547 | } |
548 | ||
2a4c734b MB |
549 | blkid_free_probe(pr); |
550 | return; | |
551 | } | |
552 | ||
553 | static int is_readonly_device(struct blkdev_cxt *cxt) | |
554 | { | |
555 | int fd, ro = 0; | |
556 | ||
1ea962b2 | 557 | if (sysfs_scanf(&cxt->sysfs, "ro", "%d", &ro) == 1) |
2a4c734b MB |
558 | return ro; |
559 | ||
560 | /* fallback if "ro" attribute does not exist */ | |
561 | fd = open(cxt->filename, O_RDONLY); | |
562 | if (fd != -1) { | |
9c53a49c KZ |
563 | if (ioctl(fd, BLKROGET, &ro) != 0) |
564 | ro = 0; | |
2a4c734b MB |
565 | close(fd); |
566 | } | |
567 | return ro; | |
568 | } | |
569 | ||
570 | static char *get_scheduler(struct blkdev_cxt *cxt) | |
571 | { | |
766ab9b0 | 572 | char *str = sysfs_strdup(&cxt->sysfs, "queue/scheduler"); |
2a4c734b MB |
573 | char *p, *res = NULL; |
574 | ||
575 | if (!str) | |
576 | return NULL; | |
577 | p = strchr(str, '['); | |
578 | if (p) { | |
579 | res = p + 1; | |
580 | p = strchr(res, ']'); | |
581 | if (p) { | |
582 | *p = '\0'; | |
583 | res = xstrdup(res); | |
584 | } else | |
585 | res = NULL; | |
586 | } | |
587 | free(str); | |
588 | return res; | |
589 | } | |
590 | ||
18eac5ba MB |
591 | static char *get_type(struct blkdev_cxt *cxt) |
592 | { | |
593 | char *res = NULL, *p; | |
594 | ||
595 | if (is_dm(cxt->name)) { | |
766ab9b0 | 596 | char *dm_uuid = sysfs_strdup(&cxt->sysfs, "dm/uuid"); |
18eac5ba MB |
597 | |
598 | /* The DM_UUID prefix should be set to subsystem owning | |
599 | * the device - LVM, CRYPT, DMRAID, MPATH, PART */ | |
600 | if (dm_uuid) { | |
601 | char *tmp = dm_uuid; | |
602 | char *dm_uuid_prefix = strsep(&tmp, "-"); | |
603 | ||
604 | if (dm_uuid_prefix) { | |
605 | /* kpartx hack to remove partition number */ | |
606 | if (strncasecmp(dm_uuid_prefix, "part", 4) == 0) | |
607 | dm_uuid_prefix[4] = '\0'; | |
608 | ||
609 | res = xstrdup(dm_uuid_prefix); | |
610 | } | |
611 | } | |
612 | ||
613 | free(dm_uuid); | |
614 | if (!res) | |
615 | /* No UUID or no prefix - just mark it as DM device */ | |
616 | res = xstrdup("dm"); | |
617 | ||
618 | } else if (!strncmp(cxt->name, "loop", 4)) { | |
619 | res = xstrdup("loop"); | |
620 | ||
621 | } else if (!strncmp(cxt->name, "md", 2)) { | |
766ab9b0 | 622 | char *md_level = sysfs_strdup(&cxt->sysfs, "md/level"); |
18eac5ba MB |
623 | res = md_level ? md_level : xstrdup("md"); |
624 | ||
625 | } else { | |
8d687180 | 626 | const char *type = NULL; |
90e9fcda | 627 | int x = 0; |
9d738ff8 | 628 | |
8d687180 PR |
629 | if (!sysfs_read_int(&cxt->sysfs, "device/type", &x)) |
630 | type = blkdev_scsi_type_to_name(x); | |
9d738ff8 | 631 | |
9d738ff8 KZ |
632 | if (!type) |
633 | type = cxt->partition ? "part" : "disk"; | |
634 | res = xstrdup(type); | |
18eac5ba MB |
635 | } |
636 | ||
637 | for (p = res; p && *p; p++) | |
638 | *p = tolower((unsigned char) *p); | |
639 | return res; | |
640 | } | |
641 | ||
a5fb4d23 MB |
642 | /* Thanks to lsscsi code for idea of detection logic used here */ |
643 | static char *get_transport(struct blkdev_cxt *cxt) | |
644 | { | |
23a11c74 | 645 | struct sysfs_cxt *sysfs = &cxt->sysfs; |
2f2f7e80 KZ |
646 | char *attr = NULL; |
647 | const char *trans = NULL; | |
a5fb4d23 | 648 | |
28ffc2b7 | 649 | /* SCSI - Serial Peripheral Interface */ |
23a11c74 | 650 | if (sysfs_scsi_host_is(sysfs, "spi")) |
2f2f7e80 | 651 | trans = "spi"; |
a5fb4d23 MB |
652 | |
653 | /* FC/FCoE - Fibre Channel / Fibre Channel over Ethernet */ | |
2f2f7e80 | 654 | else if (sysfs_scsi_host_is(sysfs, "fc")) { |
23a11c74 KZ |
655 | attr = sysfs_scsi_host_strdup_attribute(sysfs, "fc", "symbolic_name"); |
656 | if (!attr) | |
a5fb4d23 | 657 | return NULL; |
2f2f7e80 KZ |
658 | trans = strstr(attr, " over ") ? "fcoe" : "fc"; |
659 | free(attr); | |
a5fb4d23 MB |
660 | } |
661 | ||
662 | /* SAS - Serial Attached SCSI */ | |
2f2f7e80 KZ |
663 | else if (sysfs_scsi_host_is(sysfs, "sas") || |
664 | sysfs_scsi_has_attribute(sysfs, "sas_device")) | |
665 | trans = "sas"; | |
a5fb4d23 | 666 | |
a5fb4d23 MB |
667 | |
668 | /* SBP - Serial Bus Protocol (FireWire) */ | |
2f2f7e80 KZ |
669 | else if (sysfs_scsi_has_attribute(sysfs, "ieee1394_id")) |
670 | trans = "sbp"; | |
a5fb4d23 MB |
671 | |
672 | /* iSCSI */ | |
2f2f7e80 KZ |
673 | else if (sysfs_scsi_host_is(sysfs, "iscsi")) |
674 | trans ="iscsi"; | |
a5fb4d23 MB |
675 | |
676 | /* USB - Universal Serial Bus */ | |
2f2f7e80 KZ |
677 | else if (sysfs_scsi_path_contains(sysfs, "usb")) |
678 | trans = "usb"; | |
a5fb4d23 MB |
679 | |
680 | /* ATA, SATA */ | |
2f2f7e80 | 681 | else if (sysfs_scsi_host_is(sysfs, "scsi")) { |
23a11c74 KZ |
682 | attr = sysfs_scsi_host_strdup_attribute(sysfs, "scsi", "proc_name"); |
683 | if (!attr) | |
a5fb4d23 | 684 | return NULL; |
2f2f7e80 KZ |
685 | if (!strncmp(attr, "ahci", 4) || !strncmp(attr, "sata", 4)) |
686 | trans = "sata"; | |
687 | else if (strstr(attr, "ata")) | |
688 | trans = "ata"; | |
689 | free(attr); | |
a5fb4d23 MB |
690 | } |
691 | ||
2f2f7e80 | 692 | return trans ? xstrdup(trans) : NULL; |
a5fb4d23 MB |
693 | } |
694 | ||
9bd4e5c0 OO |
695 | #define is_parsable(_l) (scols_table_is_raw((_l)->table) || \ |
696 | scols_table_is_export((_l)->table)) | |
7c9c872c | 697 | |
c7e76cd1 KZ |
698 | static char *mk_name(const char *name) |
699 | { | |
700 | char *p; | |
701 | if (!name) | |
702 | return NULL; | |
703 | if (lsblk->paths) | |
704 | xasprintf(&p, "/dev/%s", name); | |
705 | else | |
706 | p = xstrdup(name); | |
707 | return p; | |
708 | } | |
709 | ||
710 | static char *mk_dm_name(const char *name) | |
711 | { | |
712 | char *p; | |
713 | if (!name) | |
714 | return NULL; | |
715 | if (lsblk->paths) | |
716 | xasprintf(&p, "/dev/mapper/%s", name); | |
717 | else | |
718 | p = xstrdup(name); | |
719 | return p; | |
720 | } | |
721 | ||
642048e4 KZ |
722 | /* stores data to scols cell userdata (invisible and independent on output) |
723 | * to make the original values accessible for sort functions | |
724 | */ | |
725 | static void set_sortdata_u64(struct libscols_line *ln, int col, uint64_t x) | |
726 | { | |
727 | struct libscols_cell *ce = scols_line_get_cell(ln, col); | |
728 | uint64_t *data; | |
729 | ||
730 | if (!ce) | |
731 | return; | |
732 | data = xmalloc(sizeof(uint64_t)); | |
733 | *data = x; | |
734 | scols_cell_set_userdata(ce, data); | |
735 | } | |
736 | ||
737 | static void set_sortdata_u64_from_string(struct libscols_line *ln, int col, const char *str) | |
738 | { | |
739 | uint64_t x; | |
740 | ||
741 | if (!str || sscanf(str, "%"SCNu64, &x) != 1) | |
742 | return; | |
743 | ||
744 | set_sortdata_u64(ln, col, x); | |
745 | } | |
746 | ||
747 | static void unref_sortdata(struct libscols_table *tb) | |
748 | { | |
749 | struct libscols_iter *itr; | |
750 | struct libscols_line *ln; | |
751 | ||
752 | if (!tb || !lsblk->sort_col) | |
753 | return; | |
754 | itr = scols_new_iter(SCOLS_ITER_FORWARD); | |
755 | if (!itr) | |
756 | return; | |
757 | while (scols_table_next_line(tb, itr, &ln) == 0) { | |
758 | struct libscols_cell *ce = scols_line_get_column_cell(ln, | |
759 | lsblk->sort_col); | |
760 | void *data = scols_cell_get_userdata(ce); | |
761 | free(data); | |
762 | } | |
763 | ||
764 | scols_free_iter(itr); | |
765 | } | |
766 | ||
9bd4e5c0 | 767 | static void set_scols_data(struct blkdev_cxt *cxt, int col, int id, struct libscols_line *ln) |
2a4c734b | 768 | { |
642048e4 | 769 | int sort = 0, st_rc = 0; |
bb6e822a | 770 | char *str = NULL; |
2a4c734b MB |
771 | |
772 | if (!cxt->st.st_rdev && (id == COL_OWNER || id == COL_GROUP || | |
773 | id == COL_MODE)) | |
1dc42eb6 | 774 | st_rc = stat(cxt->filename, &cxt->st); |
2a4c734b | 775 | |
642048e4 KZ |
776 | if (lsblk->sort_id == id) |
777 | sort = 1; | |
778 | ||
2a4c734b MB |
779 | switch(id) { |
780 | case COL_NAME: | |
bb6e822a | 781 | str = cxt->dm_name ? mk_dm_name(cxt->dm_name) : mk_name(cxt->name); |
c7e76cd1 | 782 | break; |
2a4c734b | 783 | case COL_KNAME: |
bb6e822a | 784 | str = mk_name(cxt->name); |
2a4c734b | 785 | break; |
310c0603 MB |
786 | case COL_PKNAME: |
787 | if (cxt->parent) | |
bb6e822a | 788 | str = mk_name(cxt->parent->name); |
310c0603 | 789 | break; |
2a4c734b MB |
790 | case COL_OWNER: |
791 | { | |
1dc42eb6 | 792 | struct passwd *pw = st_rc ? NULL : getpwuid(cxt->st.st_uid); |
2a4c734b | 793 | if (pw) |
bb6e822a | 794 | str = xstrdup(pw->pw_name); |
2a4c734b MB |
795 | break; |
796 | } | |
797 | case COL_GROUP: | |
798 | { | |
1dc42eb6 | 799 | struct group *gr = st_rc ? NULL : getgrgid(cxt->st.st_gid); |
2a4c734b | 800 | if (gr) |
bb6e822a | 801 | str = xstrdup(gr->gr_name); |
2a4c734b MB |
802 | break; |
803 | } | |
804 | case COL_MODE: | |
805 | { | |
806 | char md[11]; | |
1dc42eb6 KZ |
807 | |
808 | if (!st_rc) { | |
809 | strmode(cxt->st.st_mode, md); | |
bb6e822a | 810 | str = xstrdup(md); |
1dc42eb6 | 811 | } |
2a4c734b MB |
812 | break; |
813 | } | |
814 | case COL_MAJMIN: | |
7c9c872c | 815 | if (is_parsable(lsblk)) |
bb6e822a | 816 | xasprintf(&str, "%u:%u", cxt->maj, cxt->min); |
2a4c734b | 817 | else |
bb6e822a | 818 | xasprintf(&str, "%3u:%-3u", cxt->maj, cxt->min); |
642048e4 KZ |
819 | if (sort) |
820 | set_sortdata_u64(ln, col, makedev(cxt->maj, cxt->min)); | |
2a4c734b MB |
821 | break; |
822 | case COL_FSTYPE: | |
823 | probe_device(cxt); | |
824 | if (cxt->fstype) | |
bb6e822a | 825 | str = xstrdup(cxt->fstype); |
2a4c734b MB |
826 | break; |
827 | case COL_TARGET: | |
bb6e822a KZ |
828 | if (!(cxt->nholders + cxt->npartitions)) |
829 | str = get_device_mountpoint(cxt); | |
2a4c734b MB |
830 | break; |
831 | case COL_LABEL: | |
832 | probe_device(cxt); | |
bb6e822a KZ |
833 | if (cxt->label) |
834 | str = xstrdup(cxt->label); | |
2a4c734b MB |
835 | break; |
836 | case COL_UUID: | |
837 | probe_device(cxt); | |
838 | if (cxt->uuid) | |
bb6e822a | 839 | str = xstrdup(cxt->uuid); |
2a4c734b | 840 | break; |
4686ba17 MM |
841 | case COL_PARTTYPE: |
842 | probe_device(cxt); | |
843 | if (cxt->parttype) | |
bb6e822a | 844 | str = xstrdup(cxt->parttype); |
4686ba17 | 845 | break; |
aa0903e0 KZ |
846 | case COL_PARTLABEL: |
847 | probe_device(cxt); | |
bb6e822a KZ |
848 | if (cxt->partlabel) |
849 | str = xstrdup(cxt->partlabel); | |
aa0903e0 KZ |
850 | break; |
851 | case COL_PARTUUID: | |
852 | probe_device(cxt); | |
742b877b | 853 | if (cxt->partuuid) |
bb6e822a | 854 | str = xstrdup(cxt->partuuid); |
aa0903e0 | 855 | break; |
5a2fd932 KZ |
856 | case COL_PARTFLAGS: |
857 | probe_device(cxt); | |
858 | if (cxt->partflags) | |
bb6e822a | 859 | str = xstrdup(cxt->partflags); |
5a2fd932 | 860 | break; |
88ca32b3 KZ |
861 | case COL_WWN: |
862 | get_udev_properties(cxt); | |
863 | if (cxt->wwn) | |
bb6e822a | 864 | str = xstrdup(cxt->wwn); |
88ca32b3 | 865 | break; |
150db7a9 | 866 | case COL_RA: |
bb6e822a | 867 | str = sysfs_strdup(&cxt->sysfs, "queue/read_ahead_kb"); |
642048e4 KZ |
868 | if (sort) |
869 | set_sortdata_u64_from_string(ln, col, str); | |
150db7a9 | 870 | break; |
2a4c734b | 871 | case COL_RO: |
bb6e822a | 872 | str = xstrdup(is_readonly_device(cxt) ? "1" : "0"); |
2a4c734b | 873 | break; |
627970a7 | 874 | case COL_RM: |
bb6e822a KZ |
875 | str = sysfs_strdup(&cxt->sysfs, "removable"); |
876 | if (!str && cxt->sysfs.parent) | |
877 | str = sysfs_strdup(cxt->sysfs.parent, "removable"); | |
2a4c734b MB |
878 | break; |
879 | case COL_ROTA: | |
bb6e822a | 880 | str = sysfs_strdup(&cxt->sysfs, "queue/rotational"); |
2a4c734b | 881 | break; |
12b06c3d | 882 | case COL_RAND: |
bb6e822a | 883 | str = sysfs_strdup(&cxt->sysfs, "queue/add_random"); |
12b06c3d | 884 | break; |
2a4c734b | 885 | case COL_MODEL: |
bb6e822a KZ |
886 | if (!cxt->partition && cxt->nslaves == 0) |
887 | str = sysfs_strdup(&cxt->sysfs, "device/model"); | |
d6681cee | 888 | break; |
460c7afb KZ |
889 | case COL_SERIAL: |
890 | if (!cxt->partition && cxt->nslaves == 0) { | |
891 | get_udev_properties(cxt); | |
892 | if (cxt->serial) | |
bb6e822a | 893 | str = xstrdup(cxt->serial); |
460c7afb KZ |
894 | } |
895 | break; | |
d6681cee | 896 | case COL_REV: |
bb6e822a KZ |
897 | if (!cxt->partition && cxt->nslaves == 0) |
898 | str = sysfs_strdup(&cxt->sysfs, "device/rev"); | |
99f43b72 MB |
899 | break; |
900 | case COL_VENDOR: | |
bb6e822a KZ |
901 | if (!cxt->partition && cxt->nslaves == 0) |
902 | str = sysfs_strdup(&cxt->sysfs, "device/vendor"); | |
2a4c734b MB |
903 | break; |
904 | case COL_SIZE: | |
bb6e822a KZ |
905 | if (!cxt->size) |
906 | break; | |
907 | if (lsblk->bytes) | |
908 | xasprintf(&str, "%jd", cxt->size); | |
909 | else | |
910 | str = size_to_human_string(SIZE_SUFFIX_1LETTER, cxt->size); | |
642048e4 KZ |
911 | if (sort) |
912 | set_sortdata_u64(ln, col, cxt->size); | |
2a4c734b | 913 | break; |
01e487c0 | 914 | case COL_STATE: |
bb6e822a KZ |
915 | if (!cxt->partition && !cxt->dm_name) |
916 | str = sysfs_strdup(&cxt->sysfs, "device/state"); | |
917 | else if (cxt->dm_name) { | |
01e487c0 MB |
918 | int x = 0; |
919 | if (sysfs_read_int(&cxt->sysfs, "dm/suspended", &x) == 0) | |
bb6e822a | 920 | str = xstrdup(x ? "suspended" : "running"); |
01e487c0 | 921 | } |
01e487c0 | 922 | break; |
2a4c734b | 923 | case COL_ALIOFF: |
bb6e822a | 924 | str = sysfs_strdup(&cxt->sysfs, "alignment_offset"); |
642048e4 KZ |
925 | if (sort) |
926 | set_sortdata_u64_from_string(ln, col, str); | |
2a4c734b MB |
927 | break; |
928 | case COL_MINIO: | |
bb6e822a | 929 | str = sysfs_strdup(&cxt->sysfs, "queue/minimum_io_size"); |
642048e4 KZ |
930 | if (sort) |
931 | set_sortdata_u64_from_string(ln, col, str); | |
2a4c734b MB |
932 | break; |
933 | case COL_OPTIO: | |
bb6e822a | 934 | str = sysfs_strdup(&cxt->sysfs, "queue/optimal_io_size"); |
642048e4 KZ |
935 | if (sort) |
936 | set_sortdata_u64_from_string(ln, col, str); | |
2a4c734b MB |
937 | break; |
938 | case COL_PHYSEC: | |
bb6e822a | 939 | str = sysfs_strdup(&cxt->sysfs, "queue/physical_block_size"); |
642048e4 KZ |
940 | if (sort) |
941 | set_sortdata_u64_from_string(ln, col, str); | |
2a4c734b MB |
942 | break; |
943 | case COL_LOGSEC: | |
bb6e822a | 944 | str = sysfs_strdup(&cxt->sysfs, "queue/logical_block_size"); |
642048e4 KZ |
945 | if (sort) |
946 | set_sortdata_u64_from_string(ln, col, str); | |
2a4c734b MB |
947 | break; |
948 | case COL_SCHED: | |
bb6e822a | 949 | str = get_scheduler(cxt); |
2a4c734b | 950 | break; |
64c9e22a | 951 | case COL_RQ_SIZE: |
bb6e822a | 952 | str = sysfs_strdup(&cxt->sysfs, "queue/nr_requests"); |
642048e4 KZ |
953 | if (sort) |
954 | set_sortdata_u64_from_string(ln, col, str); | |
64c9e22a | 955 | break; |
18eac5ba | 956 | case COL_TYPE: |
bb6e822a | 957 | str = get_type(cxt); |
18eac5ba | 958 | break; |
699e5c4f MB |
959 | case COL_HCTL: |
960 | { | |
961 | int h, c, t, l; | |
bb6e822a KZ |
962 | if (sysfs_scsi_get_hctl(&cxt->sysfs, &h, &c, &t, &l) == 0) |
963 | xasprintf(&str, "%d:%d:%d:%d", h, c, t, l); | |
699e5c4f MB |
964 | break; |
965 | } | |
a5fb4d23 | 966 | case COL_TRANSPORT: |
bb6e822a | 967 | str = get_transport(cxt); |
a5fb4d23 | 968 | break; |
2d232246 | 969 | case COL_DALIGN: |
bb6e822a KZ |
970 | if (cxt->discard) |
971 | str = sysfs_strdup(&cxt->sysfs, "discard_alignment"); | |
972 | if (!str) | |
973 | str = xstrdup("0"); | |
642048e4 KZ |
974 | if (sort) |
975 | set_sortdata_u64_from_string(ln, col, str); | |
2d232246 MP |
976 | break; |
977 | case COL_DGRAN: | |
642048e4 | 978 | if (lsblk->bytes) { |
bb6e822a | 979 | str = sysfs_strdup(&cxt->sysfs, "queue/discard_granularity"); |
642048e4 KZ |
980 | if (sort) |
981 | set_sortdata_u64_from_string(ln, col, str); | |
982 | } else { | |
9cfe1b9c | 983 | uint64_t x; |
9cfe1b9c | 984 | if (sysfs_read_u64(&cxt->sysfs, |
642048e4 | 985 | "queue/discard_granularity", &x) == 0) { |
bb6e822a | 986 | str = size_to_human_string(SIZE_SUFFIX_1LETTER, x); |
642048e4 KZ |
987 | if (sort) |
988 | set_sortdata_u64(ln, col, x); | |
989 | } | |
9cfe1b9c | 990 | } |
2d232246 MP |
991 | break; |
992 | case COL_DMAX: | |
642048e4 | 993 | if (lsblk->bytes) { |
bb6e822a | 994 | str = sysfs_strdup(&cxt->sysfs, "queue/discard_max_bytes"); |
642048e4 KZ |
995 | if (sort) |
996 | set_sortdata_u64_from_string(ln, col, str); | |
997 | } else { | |
9cfe1b9c | 998 | uint64_t x; |
9cfe1b9c | 999 | if (sysfs_read_u64(&cxt->sysfs, |
642048e4 | 1000 | "queue/discard_max_bytes", &x) == 0) { |
bb6e822a | 1001 | str = size_to_human_string(SIZE_SUFFIX_1LETTER, x); |
642048e4 KZ |
1002 | if (sort) |
1003 | set_sortdata_u64(ln, col, x); | |
1004 | } | |
9cfe1b9c | 1005 | } |
2d232246 MP |
1006 | break; |
1007 | case COL_DZERO: | |
bb6e822a KZ |
1008 | if (cxt->discard) |
1009 | str = sysfs_strdup(&cxt->sysfs, "queue/discard_zeroes_data"); | |
1010 | if (!str) | |
1011 | str = xstrdup("0"); | |
2d232246 | 1012 | break; |
2adb1a44 | 1013 | case COL_WSAME: |
642048e4 | 1014 | if (lsblk->bytes) { |
bb6e822a | 1015 | str = sysfs_strdup(&cxt->sysfs, "queue/write_same_max_bytes"); |
642048e4 KZ |
1016 | if (sort) |
1017 | set_sortdata_u64_from_string(ln, col, str); | |
1018 | } else { | |
2adb1a44 MB |
1019 | uint64_t x; |
1020 | ||
1021 | if (sysfs_read_u64(&cxt->sysfs, | |
642048e4 | 1022 | "queue/write_same_max_bytes", &x) == 0) { |
bb6e822a | 1023 | str = size_to_human_string(SIZE_SUFFIX_1LETTER, x); |
642048e4 KZ |
1024 | if (sort) |
1025 | set_sortdata_u64(ln, col, x); | |
1026 | } | |
2adb1a44 | 1027 | } |
bb6e822a KZ |
1028 | if (!str) |
1029 | str = xstrdup("0"); | |
2adb1a44 | 1030 | break; |
2a4c734b | 1031 | }; |
bb6e822a KZ |
1032 | |
1033 | if (str) | |
1034 | scols_line_refer_data(ln, col, str); | |
2a4c734b MB |
1035 | } |
1036 | ||
642048e4 | 1037 | static void fill_table_line(struct blkdev_cxt *cxt, struct libscols_line *scols_parent) |
2a4c734b MB |
1038 | { |
1039 | int i; | |
1040 | ||
9bd4e5c0 OO |
1041 | cxt->scols_line = scols_table_new_line(lsblk->table, scols_parent); |
1042 | if (!cxt->scols_line) | |
1043 | return; | |
2a4c734b MB |
1044 | |
1045 | for (i = 0; i < ncolumns; i++) | |
9bd4e5c0 | 1046 | set_scols_data(cxt, i, get_column_id(i), cxt->scols_line); |
2a4c734b MB |
1047 | } |
1048 | ||
1049 | static int set_cxt(struct blkdev_cxt *cxt, | |
1050 | struct blkdev_cxt *parent, | |
09a71aa1 PR |
1051 | struct blkdev_cxt *wholedisk, |
1052 | const char *name) | |
2a4c734b | 1053 | { |
766ab9b0 | 1054 | dev_t devno; |
2a4c734b MB |
1055 | |
1056 | cxt->parent = parent; | |
1057 | cxt->name = xstrdup(name); | |
09a71aa1 | 1058 | cxt->partition = wholedisk != NULL; |
2a4c734b MB |
1059 | |
1060 | cxt->filename = get_device_path(cxt); | |
270e66ec MB |
1061 | if (!cxt->filename) { |
1062 | warnx(_("%s: failed to get device path"), name); | |
1063 | return -1; | |
1064 | } | |
2a4c734b | 1065 | |
09a71aa1 PR |
1066 | devno = sysfs_devname_to_devno(name, wholedisk ? wholedisk->name : NULL); |
1067 | ||
270e66ec MB |
1068 | if (!devno) { |
1069 | warnx(_("%s: unknown device name"), name); | |
1070 | return -1; | |
1071 | } | |
2a4c734b | 1072 | |
09a71aa1 PR |
1073 | if (lsblk->inverse) { |
1074 | if (sysfs_init(&cxt->sysfs, devno, wholedisk ? &wholedisk->sysfs : NULL)) { | |
1075 | warnx(_("%s: failed to initialize sysfs handler"), name); | |
1076 | return -1; | |
1077 | } | |
1078 | if (parent) | |
1079 | parent->sysfs.parent = &cxt->sysfs; | |
1080 | } else { | |
1081 | if (sysfs_init(&cxt->sysfs, devno, parent ? &parent->sysfs : NULL)) { | |
1082 | warnx(_("%s: failed to initialize sysfs handler"), name); | |
1083 | return -1; | |
1084 | } | |
270e66ec | 1085 | } |
766ab9b0 KZ |
1086 | |
1087 | cxt->maj = major(devno); | |
1088 | cxt->min = minor(devno); | |
32c67d2c | 1089 | cxt->size = 0; |
2a4c734b | 1090 | |
32c67d2c KZ |
1091 | if (sysfs_read_u64(&cxt->sysfs, "size", &cxt->size) == 0) /* in sectors */ |
1092 | cxt->size <<= 9; /* in bytes */ | |
90e9fcda | 1093 | |
65060bd0 KZ |
1094 | if (sysfs_read_int(&cxt->sysfs, |
1095 | "queue/discard_granularity", &cxt->discard) != 0) | |
1096 | cxt->discard = 0; | |
2a4c734b MB |
1097 | |
1098 | /* Ignore devices of zero size */ | |
1099 | if (!lsblk->all_devices && cxt->size == 0) | |
1100 | return -1; | |
1101 | ||
766ab9b0 KZ |
1102 | if (is_dm(name)) { |
1103 | cxt->dm_name = sysfs_strdup(&cxt->sysfs, "dm/name"); | |
270e66ec MB |
1104 | if (!cxt->dm_name) { |
1105 | warnx(_("%s: failed to get dm name"), name); | |
1106 | return -1; | |
1107 | } | |
766ab9b0 | 1108 | } |
2a4c734b | 1109 | |
09a71aa1 PR |
1110 | cxt->npartitions = sysfs_count_partitions(&cxt->sysfs, name); |
1111 | cxt->nholders = sysfs_count_dirents(&cxt->sysfs, "holders"); | |
766ab9b0 | 1112 | cxt->nslaves = sysfs_count_dirents(&cxt->sysfs, "slaves"); |
2a4c734b | 1113 | |
28ffc2b7 MB |
1114 | /* ignore non-SCSI devices */ |
1115 | if (lsblk->scsi && sysfs_scsi_get_hctl(&cxt->sysfs, NULL, NULL, NULL, NULL)) | |
1116 | return -1; | |
1117 | ||
2a4c734b MB |
1118 | return 0; |
1119 | } | |
1120 | ||
09a71aa1 PR |
1121 | static int process_blkdev(struct blkdev_cxt *cxt, struct blkdev_cxt *parent, |
1122 | int do_partitions, const char *part_name); | |
1123 | ||
2a4c734b | 1124 | /* |
09a71aa1 | 1125 | * List device partitions if any. |
2a4c734b | 1126 | */ |
09a71aa1 PR |
1127 | static int list_partitions(struct blkdev_cxt *wholedisk_cxt, struct blkdev_cxt *parent_cxt, |
1128 | const char *part_name) | |
2a4c734b MB |
1129 | { |
1130 | DIR *dir; | |
1131 | struct dirent *d; | |
09a71aa1 PR |
1132 | struct blkdev_cxt part_cxt = {}; |
1133 | int r = -1; | |
2a4c734b | 1134 | |
09a71aa1 | 1135 | assert(wholedisk_cxt); |
f31505fe | 1136 | |
09a71aa1 PR |
1137 | /* |
1138 | * Do not process further if there are no partitions for | |
1139 | * this device or the device itself is a partition. | |
1140 | */ | |
1141 | if (!wholedisk_cxt->npartitions || wholedisk_cxt->partition) | |
1142 | return -1; | |
2a4c734b | 1143 | |
09a71aa1 | 1144 | dir = sysfs_opendir(&wholedisk_cxt->sysfs, NULL); |
2a4c734b MB |
1145 | if (!dir) |
1146 | err(EXIT_FAILURE, _("failed to open device directory in sysfs")); | |
1147 | ||
1148 | while ((d = xreaddir(dir))) { | |
09a71aa1 PR |
1149 | /* Process particular partition only? */ |
1150 | if (part_name && strcmp(part_name, d->d_name)) | |
2a4c734b MB |
1151 | continue; |
1152 | ||
09a71aa1 | 1153 | if (!(sysfs_is_partition_dirent(dir, d, wholedisk_cxt->name))) |
270e66ec | 1154 | continue; |
09a71aa1 PR |
1155 | |
1156 | if (lsblk->inverse) { | |
1157 | /* | |
1158 | * <parent_cxt> | |
1159 | * `-<part_cxt> | |
1160 | * `-<wholedisk_cxt> | |
1161 | * `-... | |
1162 | */ | |
1163 | if (set_cxt(&part_cxt, parent_cxt, wholedisk_cxt, d->d_name)) | |
1164 | goto next; | |
1165 | ||
1166 | if (!parent_cxt && part_cxt.nholders) | |
1167 | goto next; | |
1168 | ||
1169 | wholedisk_cxt->parent = &part_cxt; | |
642048e4 | 1170 | fill_table_line(&part_cxt, parent_cxt ? parent_cxt->scols_line : NULL); |
09a71aa1 PR |
1171 | if (!lsblk->nodeps) |
1172 | process_blkdev(wholedisk_cxt, &part_cxt, 0, NULL); | |
1173 | } else { | |
1174 | /* | |
1175 | * <parent_cxt> | |
1176 | * `-<wholedisk_cxt> | |
1177 | * `-<part_cxt> | |
1178 | * `-... | |
1179 | */ | |
a0e3e3de KZ |
1180 | int ps = set_cxt(&part_cxt, wholedisk_cxt, wholedisk_cxt, d->d_name); |
1181 | ||
09a71aa1 PR |
1182 | /* Print whole disk only once */ |
1183 | if (r) | |
642048e4 | 1184 | fill_table_line(wholedisk_cxt, parent_cxt ? parent_cxt->scols_line : NULL); |
a0e3e3de | 1185 | if (ps == 0 && !lsblk->nodeps) |
09a71aa1 | 1186 | process_blkdev(&part_cxt, wholedisk_cxt, 0, NULL); |
270e66ec | 1187 | } |
09a71aa1 PR |
1188 | next: |
1189 | reset_blkdev_cxt(&part_cxt); | |
1190 | r = 0; | |
2a4c734b | 1191 | } |
09a71aa1 | 1192 | |
2a4c734b | 1193 | closedir(dir); |
09a71aa1 PR |
1194 | return r; |
1195 | } | |
1196 | ||
540d506f KZ |
1197 | static int get_wholedisk_from_partition_dirent(DIR *dir, const char *dirname, |
1198 | struct dirent *d, struct blkdev_cxt *cxt) | |
09a71aa1 PR |
1199 | { |
1200 | char path[PATH_MAX]; | |
1201 | char *p; | |
1202 | int len; | |
1203 | ||
540d506f | 1204 | if ((len = readlink_at(dirfd(dir), dirname, |
9f51089e | 1205 | d->d_name, path, sizeof(path) - 1)) < 0) |
09a71aa1 | 1206 | return 0; |
540d506f KZ |
1207 | |
1208 | path[len] = '\0'; | |
09a71aa1 PR |
1209 | |
1210 | /* The path ends with ".../<device>/<partition>" */ | |
540d506f KZ |
1211 | p = strrchr(path, '/'); |
1212 | if (!p) | |
1213 | return 0; | |
1214 | *p = '\0'; | |
1215 | ||
1216 | p = strrchr(path, '/'); | |
1217 | if (!p) | |
1218 | return 0; | |
1219 | p++; | |
2a4c734b | 1220 | |
09a71aa1 PR |
1221 | return set_cxt(cxt, NULL, NULL, p); |
1222 | } | |
1223 | ||
1224 | /* | |
1225 | * List device dependencies: partitions, holders (inverse = 0) or slaves (inverse = 1). | |
1226 | */ | |
1227 | static int list_deps(struct blkdev_cxt *cxt) | |
1228 | { | |
1229 | DIR *dir; | |
1230 | struct dirent *d; | |
1231 | struct blkdev_cxt dep = {}; | |
540d506f KZ |
1232 | char dirname[PATH_MAX]; |
1233 | const char *depname; | |
09a71aa1 PR |
1234 | |
1235 | assert(cxt); | |
1236 | ||
1237 | if (lsblk->nodeps) | |
1238 | return 0; | |
1239 | ||
1240 | if (!(lsblk->inverse ? cxt->nslaves : cxt->nholders)) | |
1241 | return 0; | |
1242 | ||
540d506f KZ |
1243 | depname = lsblk->inverse ? "slaves" : "holders"; |
1244 | dir = sysfs_opendir(&cxt->sysfs, depname); | |
2a4c734b MB |
1245 | if (!dir) |
1246 | return 0; | |
1247 | ||
540d506f KZ |
1248 | snprintf(dirname, sizeof(dirname), "%s/%s", cxt->sysfs.dir_path, depname); |
1249 | ||
2a4c734b | 1250 | while ((d = xreaddir(dir))) { |
09a71aa1 PR |
1251 | /* Is the dependency a partition? */ |
1252 | if (sysfs_is_partition_dirent(dir, d, NULL)) { | |
540d506f | 1253 | if (!get_wholedisk_from_partition_dirent(dir, dirname, d, &dep)) |
09a71aa1 | 1254 | process_blkdev(&dep, cxt, 1, d->d_name); |
270e66ec | 1255 | } |
09a71aa1 PR |
1256 | /* The dependency is a whole device. */ |
1257 | else if (!set_cxt(&dep, cxt, NULL, d->d_name)) | |
1258 | process_blkdev(&dep, cxt, 1, NULL); | |
1259 | ||
1260 | reset_blkdev_cxt(&dep); | |
2a4c734b MB |
1261 | } |
1262 | closedir(dir); | |
1263 | ||
1264 | return 0; | |
1265 | } | |
1266 | ||
09a71aa1 PR |
1267 | static int process_blkdev(struct blkdev_cxt *cxt, struct blkdev_cxt *parent, |
1268 | int do_partitions, const char *part_name) | |
1269 | { | |
1270 | if (do_partitions && cxt->npartitions) | |
1271 | return list_partitions(cxt, parent, part_name); | |
1272 | ||
642048e4 | 1273 | fill_table_line(cxt, parent ? parent->scols_line : NULL); |
09a71aa1 PR |
1274 | return list_deps(cxt); |
1275 | } | |
1276 | ||
1277 | /* Iterate devices in sysfs */ | |
2a4c734b MB |
1278 | static int iterate_block_devices(void) |
1279 | { | |
1280 | DIR *dir; | |
1281 | struct dirent *d; | |
1282 | struct blkdev_cxt cxt = {}; | |
1283 | ||
1284 | if (!(dir = opendir(_PATH_SYS_BLOCK))) | |
1285 | return EXIT_FAILURE; | |
1286 | ||
1287 | while ((d = xreaddir(dir))) { | |
09a71aa1 | 1288 | if (set_cxt(&cxt, NULL, NULL, d->d_name)) |
2a4c734b MB |
1289 | goto next; |
1290 | ||
2ef4e8ba | 1291 | if (is_maj_excluded(cxt.maj) || !is_maj_included(cxt.maj)) |
2a4c734b MB |
1292 | goto next; |
1293 | ||
09a71aa1 PR |
1294 | /* Skip devices in the middle of dependency tree. */ |
1295 | if ((lsblk->inverse ? cxt.nholders : cxt.nslaves) > 0) | |
2a4c734b MB |
1296 | goto next; |
1297 | ||
09a71aa1 | 1298 | process_blkdev(&cxt, NULL, 1, NULL); |
2a4c734b MB |
1299 | next: |
1300 | reset_blkdev_cxt(&cxt); | |
1301 | } | |
1302 | ||
1303 | closedir(dir); | |
1304 | ||
1305 | return EXIT_SUCCESS; | |
1306 | } | |
1307 | ||
da30cb2a PR |
1308 | static char *devno_to_sysfs_name(dev_t devno, char *devname, char *buf, size_t buf_size) |
1309 | { | |
1310 | char path[PATH_MAX]; | |
1311 | ssize_t len; | |
1312 | ||
1313 | if (!sysfs_devno_path(devno, path, sizeof(path))) { | |
1314 | warn(_("%s: failed to compose sysfs path"), devname); | |
1315 | return NULL; | |
1316 | } | |
1317 | ||
9f51089e | 1318 | len = readlink(path, buf, buf_size - 1); |
da30cb2a PR |
1319 | if (len < 0) { |
1320 | warn(_("%s: failed to read link"), path); | |
1321 | return NULL; | |
1322 | } | |
1323 | buf[len] = '\0'; | |
1324 | ||
1325 | return xstrdup(strrchr(buf, '/') + 1); | |
1326 | } | |
1327 | ||
2a4c734b MB |
1328 | static int process_one_device(char *devname) |
1329 | { | |
1330 | struct blkdev_cxt parent = {}, cxt = {}; | |
1331 | struct stat st; | |
da30cb2a | 1332 | char buf[PATH_MAX + 1], *name, *diskname = NULL; |
2a4c734b | 1333 | dev_t disk = 0; |
da30cb2a | 1334 | int real_part = 0; |
270e66ec | 1335 | int status = EXIT_FAILURE; |
2a4c734b MB |
1336 | |
1337 | if (stat(devname, &st) || !S_ISBLK(st.st_mode)) { | |
1338 | warnx(_("%s: not a block device"), devname); | |
1339 | return EXIT_FAILURE; | |
1340 | } | |
da30cb2a PR |
1341 | |
1342 | if (!(name = devno_to_sysfs_name(st.st_rdev, devname, buf, PATH_MAX))) { | |
1343 | warn(_("%s: failed to get sysfs name"), devname); | |
2a4c734b MB |
1344 | return EXIT_FAILURE; |
1345 | } | |
da30cb2a PR |
1346 | |
1347 | if (!strncmp(name, "dm-", 3)) { | |
1348 | /* dm mapping is never a real partition! */ | |
1349 | real_part = 0; | |
1350 | } else { | |
1351 | if (blkid_devno_to_wholedisk(st.st_rdev, buf, sizeof(buf), &disk)) { | |
1352 | warn(_("%s: failed to get whole-disk device number"), devname); | |
1353 | return EXIT_FAILURE; | |
1354 | } | |
1355 | diskname = buf; | |
1356 | real_part = st.st_rdev != disk; | |
1357 | } | |
1358 | ||
1359 | if (!real_part) { | |
2a4c734b | 1360 | /* |
09a71aa1 | 1361 | * Device is not a partition. |
2a4c734b | 1362 | */ |
da30cb2a | 1363 | if (set_cxt(&cxt, NULL, NULL, name)) |
270e66ec | 1364 | goto leave; |
09a71aa1 | 1365 | process_blkdev(&cxt, NULL, !lsblk->inverse, NULL); |
270e66ec | 1366 | } else { |
2a4c734b | 1367 | /* |
09a71aa1 | 1368 | * Partition, read sysfs name of the device. |
2a4c734b | 1369 | */ |
09a71aa1 | 1370 | if (set_cxt(&parent, NULL, NULL, diskname)) |
270e66ec | 1371 | goto leave; |
09a71aa1 | 1372 | if (set_cxt(&cxt, &parent, &parent, name)) |
270e66ec | 1373 | goto leave; |
09a71aa1 PR |
1374 | |
1375 | if (lsblk->inverse) | |
1376 | process_blkdev(&parent, &cxt, 1, cxt.name); | |
1377 | else | |
1378 | process_blkdev(&cxt, &parent, 1, NULL); | |
2a4c734b MB |
1379 | } |
1380 | ||
270e66ec MB |
1381 | status = EXIT_SUCCESS; |
1382 | leave: | |
da30cb2a | 1383 | free(name); |
2a4c734b MB |
1384 | reset_blkdev_cxt(&cxt); |
1385 | ||
da30cb2a | 1386 | if (real_part) |
2a4c734b MB |
1387 | reset_blkdev_cxt(&parent); |
1388 | ||
270e66ec | 1389 | return status; |
2a4c734b MB |
1390 | } |
1391 | ||
2dc03af7 | 1392 | static void parse_excludes(const char *str0) |
2a4c734b | 1393 | { |
2dc03af7 KZ |
1394 | const char *str = str0; |
1395 | ||
2a4c734b MB |
1396 | while (str && *str) { |
1397 | char *end = NULL; | |
ed34643c | 1398 | unsigned long n; |
2a4c734b MB |
1399 | |
1400 | errno = 0; | |
1401 | n = strtoul(str, &end, 10); | |
1402 | ||
2dc03af7 KZ |
1403 | if (end == str || (end && *end && *end != ',')) |
1404 | errx(EXIT_FAILURE, _("failed to parse list '%s'"), str0); | |
1405 | if (errno != 0 && (n == ULONG_MAX || n == 0)) | |
1406 | err(EXIT_FAILURE, _("failed to parse list '%s'"), str0); | |
2a4c734b MB |
1407 | excludes[nexcludes++] = n; |
1408 | ||
1409 | if (nexcludes == ARRAY_SIZE(excludes)) | |
f14f02f5 | 1410 | /* TRANSLATORS: The standard value for %d is 256. */ |
2a4c734b MB |
1411 | errx(EXIT_FAILURE, _("the list of excluded devices is " |
1412 | "too large (limit is %d devices)"), | |
1413 | (int)ARRAY_SIZE(excludes)); | |
2dc03af7 | 1414 | |
2a4c734b MB |
1415 | str = end && *end ? end + 1 : NULL; |
1416 | } | |
1417 | } | |
1418 | ||
2dc03af7 | 1419 | static void parse_includes(const char *str0) |
2ef4e8ba | 1420 | { |
2dc03af7 KZ |
1421 | const char *str = str0; |
1422 | ||
2ef4e8ba KZ |
1423 | while (str && *str) { |
1424 | char *end = NULL; | |
1425 | unsigned long n; | |
1426 | ||
1427 | errno = 0; | |
1428 | n = strtoul(str, &end, 10); | |
1429 | ||
2dc03af7 KZ |
1430 | if (end == str || (end && *end && *end != ',')) |
1431 | errx(EXIT_FAILURE, _("failed to parse list '%s'"), str0); | |
1432 | if (errno != 0 && (n == ULONG_MAX || n == 0)) | |
1433 | err(EXIT_FAILURE, _("failed to parse list '%s'"), str0); | |
2ef4e8ba KZ |
1434 | includes[nincludes++] = n; |
1435 | ||
1436 | if (nincludes == ARRAY_SIZE(includes)) | |
1437 | /* TRANSLATORS: The standard value for %d is 256. */ | |
1438 | errx(EXIT_FAILURE, _("the list of included devices is " | |
1439 | "too large (limit is %d devices)"), | |
1440 | (int)ARRAY_SIZE(includes)); | |
1441 | str = end && *end ? end + 1 : NULL; | |
1442 | } | |
1443 | } | |
1444 | ||
642048e4 KZ |
1445 | /* |
1446 | * see set_sortdata_u64() and columns initialization in main() | |
1447 | */ | |
1448 | static int cmp_u64_cells(struct libscols_cell *a, | |
1449 | struct libscols_cell *b, | |
1450 | __attribute__((__unused__)) void *data) | |
1451 | { | |
1452 | uint64_t *adata = (uint64_t *) scols_cell_get_userdata(a), | |
1453 | *bdata = (uint64_t *) scols_cell_get_userdata(b); | |
1454 | ||
1455 | if (adata == NULL && bdata == NULL) | |
1456 | return 0; | |
1457 | if (adata == NULL) | |
1458 | return -1; | |
1459 | if (bdata == NULL) | |
1460 | return 1; | |
1461 | return *adata == *bdata ? 0 : *adata >= *bdata ? 1 : -1; | |
1462 | } | |
1463 | ||
abafd686 | 1464 | static void __attribute__((__noreturn__)) help(FILE *out) |
2a4c734b | 1465 | { |
507d39c2 | 1466 | size_t i; |
2a4c734b | 1467 | |
39b232c1 SK |
1468 | fputs(USAGE_HEADER, out); |
1469 | fprintf(out, _(" %s [options] [<device> ...]\n"), program_invocation_short_name); | |
1470 | fputs(USAGE_OPTIONS, out); | |
1471 | fputs(_(" -a, --all print all devices\n"), out); | |
1472 | fputs(_(" -b, --bytes print SIZE in bytes rather than in human readable format\n"), out); | |
1473 | fputs(_(" -d, --nodeps don't print slaves or holders\n"), out); | |
1474 | fputs(_(" -D, --discard print discard capabilities\n"), out); | |
1475 | fputs(_(" -e, --exclude <list> exclude devices by major number (default: RAM disks)\n"), out); | |
39b232c1 | 1476 | fputs(_(" -f, --fs output info about filesystems\n"), out); |
39b232c1 | 1477 | fputs(_(" -i, --ascii use ascii characters only\n"), out); |
3e59c481 | 1478 | fputs(_(" -I, --include <list> show only devices with specified major numbers\n"), out); |
39b232c1 | 1479 | fputs(_(" -l, --list use list format output\n"), out); |
3e59c481 | 1480 | fputs(_(" -m, --perms output info about permissions\n"), out); |
39b232c1 SK |
1481 | fputs(_(" -n, --noheadings don't print headings\n"), out); |
1482 | fputs(_(" -o, --output <list> output columns\n"), out); | |
1b4d2a4a | 1483 | fputs(_(" -O, --output-all output all columns\n"), out); |
ef75bc88 | 1484 | fputs(_(" -p, --paths print complete device path\n"), out); |
39b232c1 SK |
1485 | fputs(_(" -P, --pairs use key=\"value\" output format\n"), out); |
1486 | fputs(_(" -r, --raw use raw output format\n"), out); | |
1487 | fputs(_(" -s, --inverse inverse dependencies\n"), out); | |
39b232c1 | 1488 | fputs(_(" -S, --scsi output info about SCSI devices\n"), out); |
3e59c481 | 1489 | fputs(_(" -t, --topology output info about topology\n"), out); |
642048e4 | 1490 | fputs(_(" -x, --sort <column> sort output by <colum>\n"), out); |
39b232c1 SK |
1491 | fputs(USAGE_SEPARATOR, out); |
1492 | fputs(USAGE_HELP, out); | |
1493 | fputs(USAGE_VERSION, out); | |
2a4c734b | 1494 | |
57912387 | 1495 | fprintf(out, _("\nAvailable columns (for --output):\n")); |
2a4c734b | 1496 | |
507d39c2 | 1497 | for (i = 0; i < NCOLS; i++) |
57912387 | 1498 | fprintf(out, " %11s %s\n", infos[i].name, _(infos[i].help)); |
2a4c734b | 1499 | |
57912387 | 1500 | fprintf(out, USAGE_MAN_TAIL("lsblk(8)")); |
2a4c734b MB |
1501 | |
1502 | exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); | |
1503 | } | |
1504 | ||
f65b3bb6 SK |
1505 | static void check_sysdevblock(void) |
1506 | { | |
1507 | if (access(_PATH_SYS_DEVBLOCK, R_OK) != 0) | |
1508 | err(EXIT_FAILURE, _("failed to access sysfs directory: %s"), | |
1509 | _PATH_SYS_DEVBLOCK); | |
1510 | } | |
1511 | ||
2a4c734b MB |
1512 | int main(int argc, char *argv[]) |
1513 | { | |
642048e4 | 1514 | struct lsblk _ls = { .sort_id = -1 }; |
9bd4e5c0 | 1515 | int scols_flags = LSBLK_TREE; |
2a4c734b | 1516 | int i, c, status = EXIT_FAILURE; |
43bca827 | 1517 | char *outarg = NULL; |
2a4c734b | 1518 | |
6c7d5ae9 | 1519 | static const struct option longopts[] = { |
2a4c734b | 1520 | { "all", 0, 0, 'a' }, |
f31505fe KZ |
1521 | { "bytes", 0, 0, 'b' }, |
1522 | { "nodeps", 0, 0, 'd' }, | |
2d232246 | 1523 | { "discard", 0, 0, 'D' }, |
2a4c734b MB |
1524 | { "help", 0, 0, 'h' }, |
1525 | { "output", 1, 0, 'o' }, | |
1b4d2a4a | 1526 | { "output-all", 0, 0, 'O' }, |
2a4c734b MB |
1527 | { "perms", 0, 0, 'm' }, |
1528 | { "noheadings", 0, 0, 'n' }, | |
1529 | { "list", 0, 0, 'l' }, | |
1530 | { "ascii", 0, 0, 'i' }, | |
1531 | { "raw", 0, 0, 'r' }, | |
09a71aa1 | 1532 | { "inverse", 0, 0, 's' }, |
2a4c734b MB |
1533 | { "fs", 0, 0, 'f' }, |
1534 | { "exclude", 1, 0, 'e' }, | |
2ef4e8ba | 1535 | { "include", 1, 0, 'I' }, |
2a4c734b | 1536 | { "topology", 0, 0, 't' }, |
c7e76cd1 | 1537 | { "paths", 0, 0, 'p' }, |
6ea1bdd3 | 1538 | { "pairs", 0, 0, 'P' }, |
28ffc2b7 | 1539 | { "scsi", 0, 0, 'S' }, |
642048e4 | 1540 | { "sort", 1, 0, 'x' }, |
57912387 | 1541 | { "version", 0, 0, 'V' }, |
2a4c734b MB |
1542 | { NULL, 0, 0, 0 }, |
1543 | }; | |
1544 | ||
98f2dc7a | 1545 | static const ul_excl_t excl[] = { /* rows and cols in in ASCII order */ |
1b4d2a4a | 1546 | { 'D','O' }, |
98f2dc7a | 1547 | { 'I','e' }, |
1b4d2a4a MY |
1548 | { 'O','S' }, |
1549 | { 'O','f' }, | |
1550 | { 'O','m' }, | |
1551 | { 'O','t' }, | |
98f2dc7a KZ |
1552 | { 'P','l','r' }, |
1553 | { 0 } | |
1554 | }; | |
1555 | int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT; | |
1556 | ||
2a4c734b MB |
1557 | setlocale(LC_ALL, ""); |
1558 | bindtextdomain(PACKAGE, LOCALEDIR); | |
1559 | textdomain(PACKAGE); | |
c05a80ca | 1560 | atexit(close_stdout); |
2a4c734b MB |
1561 | |
1562 | lsblk = &_ls; | |
2a4c734b | 1563 | |
98f2dc7a | 1564 | while((c = getopt_long(argc, argv, |
642048e4 | 1565 | "abdDe:fhlnmo:OpPiI:rstVSx:", longopts, NULL)) != -1) { |
98f2dc7a KZ |
1566 | |
1567 | err_exclusive_options(c, longopts, excl, excl_st); | |
1568 | ||
2a4c734b MB |
1569 | switch(c) { |
1570 | case 'a': | |
1571 | lsblk->all_devices = 1; | |
1572 | break; | |
1573 | case 'b': | |
1574 | lsblk->bytes = 1; | |
1575 | break; | |
f31505fe KZ |
1576 | case 'd': |
1577 | lsblk->nodeps = 1; | |
1578 | break; | |
2d232246 MP |
1579 | case 'D': |
1580 | columns[ncolumns++] = COL_NAME; | |
1581 | columns[ncolumns++] = COL_DALIGN; | |
1582 | columns[ncolumns++] = COL_DGRAN; | |
1583 | columns[ncolumns++] = COL_DMAX; | |
1584 | columns[ncolumns++] = COL_DZERO; | |
1585 | break; | |
2a4c734b MB |
1586 | case 'e': |
1587 | parse_excludes(optarg); | |
1588 | break; | |
1589 | case 'h': | |
1590 | help(stdout); | |
1591 | break; | |
1592 | case 'l': | |
9bd4e5c0 | 1593 | scols_flags &= ~LSBLK_TREE; /* disable the default */ |
2a4c734b MB |
1594 | break; |
1595 | case 'n': | |
9bd4e5c0 | 1596 | scols_flags |= LSBLK_NOHEADINGS; |
2a4c734b MB |
1597 | break; |
1598 | case 'o': | |
43bca827 | 1599 | outarg = optarg; |
2a4c734b | 1600 | break; |
1b4d2a4a MY |
1601 | case 'O': |
1602 | for (ncolumns = 0 ; ncolumns < (int) NCOLS; ncolumns++) | |
1603 | columns[ncolumns] = ncolumns; | |
1604 | break; | |
c7e76cd1 KZ |
1605 | case 'p': |
1606 | lsblk->paths = 1; | |
1607 | break; | |
6ea1bdd3 | 1608 | case 'P': |
9bd4e5c0 OO |
1609 | scols_flags |= LSBLK_EXPORT; |
1610 | scols_flags &= ~LSBLK_TREE; /* disable the default */ | |
6ea1bdd3 | 1611 | break; |
2a4c734b | 1612 | case 'i': |
9bd4e5c0 | 1613 | scols_flags |= LSBLK_ASCII; |
2a4c734b | 1614 | break; |
2ef4e8ba | 1615 | case 'I': |
2ef4e8ba KZ |
1616 | parse_includes(optarg); |
1617 | break; | |
2a4c734b | 1618 | case 'r': |
9bd4e5c0 OO |
1619 | scols_flags &= ~LSBLK_TREE; /* disable the default */ |
1620 | scols_flags |= LSBLK_RAW; /* enable raw */ | |
2a4c734b | 1621 | break; |
09a71aa1 PR |
1622 | case 's': |
1623 | lsblk->inverse = 1; | |
1624 | break; | |
2a4c734b MB |
1625 | case 'f': |
1626 | columns[ncolumns++] = COL_NAME; | |
1627 | columns[ncolumns++] = COL_FSTYPE; | |
1628 | columns[ncolumns++] = COL_LABEL; | |
38a8d69e | 1629 | columns[ncolumns++] = COL_UUID; |
2a4c734b MB |
1630 | columns[ncolumns++] = COL_TARGET; |
1631 | break; | |
1632 | case 'm': | |
1633 | columns[ncolumns++] = COL_NAME; | |
1634 | columns[ncolumns++] = COL_SIZE; | |
1635 | columns[ncolumns++] = COL_OWNER; | |
1636 | columns[ncolumns++] = COL_GROUP; | |
1637 | columns[ncolumns++] = COL_MODE; | |
1638 | break; | |
1639 | case 't': | |
1640 | columns[ncolumns++] = COL_NAME; | |
1641 | columns[ncolumns++] = COL_ALIOFF; | |
1642 | columns[ncolumns++] = COL_MINIO; | |
1643 | columns[ncolumns++] = COL_OPTIO; | |
1644 | columns[ncolumns++] = COL_PHYSEC; | |
1645 | columns[ncolumns++] = COL_LOGSEC; | |
1646 | columns[ncolumns++] = COL_ROTA; | |
1647 | columns[ncolumns++] = COL_SCHED; | |
64c9e22a | 1648 | columns[ncolumns++] = COL_RQ_SIZE; |
150db7a9 | 1649 | columns[ncolumns++] = COL_RA; |
2adb1a44 | 1650 | columns[ncolumns++] = COL_WSAME; |
2a4c734b | 1651 | break; |
28ffc2b7 MB |
1652 | case 'S': |
1653 | lsblk->nodeps = 1; | |
1654 | lsblk->scsi = 1; | |
1655 | columns[ncolumns++] = COL_NAME; | |
1656 | columns[ncolumns++] = COL_HCTL; | |
1657 | columns[ncolumns++] = COL_TYPE; | |
1658 | columns[ncolumns++] = COL_VENDOR; | |
1659 | columns[ncolumns++] = COL_MODEL; | |
1660 | columns[ncolumns++] = COL_REV; | |
9b5535b3 | 1661 | columns[ncolumns++] = COL_TRANSPORT; |
28ffc2b7 | 1662 | break; |
57912387 | 1663 | case 'V': |
e421313d | 1664 | printf(UTIL_LINUX_VERSION); |
57912387 | 1665 | return EXIT_SUCCESS; |
642048e4 KZ |
1666 | case 'x': |
1667 | scols_flags &= ~LSBLK_TREE; /* disable the default */ | |
1668 | lsblk->sort_id = column_name_to_id(optarg, strlen(optarg)); | |
1669 | if (lsblk->sort_id >= 0) | |
1670 | break; | |
1671 | /* fallthrough */ | |
2a4c734b MB |
1672 | default: |
1673 | help(stderr); | |
1674 | } | |
1675 | } | |
1676 | ||
f65b3bb6 SK |
1677 | check_sysdevblock(); |
1678 | ||
2a4c734b MB |
1679 | if (!ncolumns) { |
1680 | columns[ncolumns++] = COL_NAME; | |
1681 | columns[ncolumns++] = COL_MAJMIN; | |
627970a7 | 1682 | columns[ncolumns++] = COL_RM; |
2a4c734b MB |
1683 | columns[ncolumns++] = COL_SIZE; |
1684 | columns[ncolumns++] = COL_RO; | |
18eac5ba | 1685 | columns[ncolumns++] = COL_TYPE; |
2a4c734b MB |
1686 | columns[ncolumns++] = COL_TARGET; |
1687 | } | |
1688 | ||
43bca827 MB |
1689 | if (outarg && string_add_to_idarray(outarg, columns, ARRAY_SIZE(columns), |
1690 | &ncolumns, column_name_to_id) < 0) | |
1691 | return EXIT_FAILURE; | |
1692 | ||
2ef4e8ba | 1693 | if (nexcludes == 0 && nincludes == 0) |
2a4c734b | 1694 | excludes[nexcludes++] = 1; /* default: ignore RAM disks */ |
9554f7ab | 1695 | |
642048e4 KZ |
1696 | if (lsblk->sort_id >= 0 && column_id_to_number(lsblk->sort_id) < 0) |
1697 | errx(EXIT_FAILURE, _("the sort column has to be between output columns.")); | |
1698 | ||
9554f7ab | 1699 | mnt_init_debug(0); |
710ed55d | 1700 | scols_init_debug(0); |
9554f7ab | 1701 | |
2a4c734b MB |
1702 | /* |
1703 | * initialize output columns | |
1704 | */ | |
0925a9dd | 1705 | if (!(lsblk->table = scols_new_table())) |
2a4c734b | 1706 | errx(EXIT_FAILURE, _("failed to initialize output table")); |
0925a9dd KZ |
1707 | scols_table_enable_raw(lsblk->table, !!(scols_flags & LSBLK_RAW)); |
1708 | scols_table_enable_export(lsblk->table, !!(scols_flags & LSBLK_EXPORT)); | |
1709 | scols_table_enable_ascii(lsblk->table, !!(scols_flags & LSBLK_ASCII)); | |
1710 | scols_table_enable_noheadings(lsblk->table, !!(scols_flags & LSBLK_NOHEADINGS)); | |
2a4c734b MB |
1711 | |
1712 | for (i = 0; i < ncolumns; i++) { | |
1713 | struct colinfo *ci = get_column_info(i); | |
642048e4 KZ |
1714 | struct libscols_column *cl; |
1715 | int id = get_column_id(i), fl = ci->flags; | |
2a4c734b | 1716 | |
642048e4 | 1717 | if (!(scols_flags & LSBLK_TREE) && id == COL_NAME) |
9bd4e5c0 | 1718 | fl &= ~SCOLS_FL_TREE; |
2a4c734b | 1719 | |
642048e4 KZ |
1720 | cl = scols_table_new_column(lsblk->table, ci->name, ci->whint, fl); |
1721 | if (!cl) { | |
2a4c734b MB |
1722 | warn(_("failed to initialize output column")); |
1723 | goto leave; | |
1724 | } | |
642048e4 KZ |
1725 | if (!lsblk->sort_col && lsblk->sort_id == id) { |
1726 | lsblk->sort_col = cl; | |
1727 | scols_column_set_cmpfunc(cl, | |
1728 | ci->sort_type == SORT_STRING ? | |
1729 | scols_cmpstr_cells : cmp_u64_cells, NULL); | |
1730 | } | |
2a4c734b MB |
1731 | } |
1732 | ||
1733 | if (optind == argc) | |
1734 | status = iterate_block_devices(); | |
1735 | else while (optind < argc) | |
1736 | status = process_one_device(argv[optind++]); | |
1737 | ||
642048e4 KZ |
1738 | if (lsblk->sort_col) |
1739 | scols_sort_table(lsblk->table, lsblk->sort_col); | |
1740 | ||
9bd4e5c0 | 1741 | scols_print_table(lsblk->table); |
2a4c734b MB |
1742 | |
1743 | leave: | |
642048e4 KZ |
1744 | if (lsblk->sort_col) |
1745 | unref_sortdata(lsblk->table); | |
1746 | ||
9bd4e5c0 | 1747 | scols_unref_table(lsblk->table); |
50fccba1 KZ |
1748 | |
1749 | mnt_unref_table(mtab); | |
1750 | mnt_unref_table(swaps); | |
6195f9e6 | 1751 | mnt_unref_cache(mntcache); |
d44e3391 KZ |
1752 | #ifdef HAVE_LIBUDEV |
1753 | udev_unref(udev); | |
1754 | #endif | |
2a4c734b MB |
1755 | return status; |
1756 | } |