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Commit | Line | Data |
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04fd7a9f KZ |
1 | /* |
2 | * findmnt(8) | |
3 | * | |
85c9ca5a | 4 | * Copyright (C) 2010-2014 Red Hat, Inc. All rights reserved. |
04fd7a9f KZ |
5 | * Written by Karel Zak <kzak@redhat.com> |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it would be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
7cebf0bb SK |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
04fd7a9f | 20 | */ |
04fd7a9f KZ |
21 | #include <stdio.h> |
22 | #include <stdlib.h> | |
23 | #include <errno.h> | |
04fd7a9f KZ |
24 | #include <unistd.h> |
25 | #include <getopt.h> | |
26 | #include <string.h> | |
9d67679b | 27 | #include <termios.h> |
9d67679b | 28 | #ifdef HAVE_SYS_IOCTL_H |
e346233e | 29 | # include <sys/ioctl.h> |
9d67679b | 30 | #endif |
9d67679b | 31 | #include <assert.h> |
32e5466a | 32 | #include <poll.h> |
a85ef33b DR |
33 | #include <sys/statvfs.h> |
34 | #include <sys/types.h> | |
e346233e KZ |
35 | #ifdef HAVE_LIBUDEV |
36 | # include <libudev.h> | |
37 | #endif | |
2a1f429a | 38 | #include <libmount.h> |
218a3a94 | 39 | #include <libsmartcols.h> |
fdedb45e | 40 | |
04fd7a9f KZ |
41 | #include "pathnames.h" |
42 | #include "nls.h" | |
c05a80ca | 43 | #include "closestream.h" |
9d67679b | 44 | #include "c.h" |
ad38fb9f | 45 | #include "strutils.h" |
6f312c89 | 46 | #include "xalloc.h" |
fb9a0042 | 47 | #include "optutils.h" |
e346233e | 48 | #include "mangle.h" |
04fd7a9f | 49 | |
9d67679b KZ |
50 | /* flags */ |
51 | enum { | |
52 | FL_EVALUATE = (1 << 1), | |
53 | FL_CANONICALIZE = (1 << 2), | |
54 | FL_FIRSTONLY = (1 << 3), | |
55 | FL_INVERT = (1 << 4), | |
9d67679b | 56 | FL_NOSWAPMATCH = (1 << 6), |
b2214e1f | 57 | FL_NOFSROOT = (1 << 7), |
049caefd | 58 | FL_SUBMOUNTS = (1 << 8), |
cd4ed46f KZ |
59 | FL_POLL = (1 << 9), |
60 | FL_DF = (1 << 10), | |
bebdda30 | 61 | FL_ALL = (1 << 11), |
2b6759df | 62 | FL_UNIQ = (1 << 12), |
85c9ca5a | 63 | FL_BYTES = (1 << 13), |
097e7f2f | 64 | FL_NOCACHE = (1 << 14), |
85c9ca5a KZ |
65 | |
66 | /* basic table settings */ | |
67 | FL_ASCII = (1 << 20), | |
68 | FL_RAW = (1 << 21), | |
69 | FL_NOHEADINGS = (1 << 22), | |
70 | FL_EXPORT = (1 << 23), | |
71 | FL_TREE = (1 << 24) | |
9d67679b KZ |
72 | }; |
73 | ||
74 | /* column IDs */ | |
04fd7a9f KZ |
75 | enum { |
76 | COL_SOURCE, | |
77 | COL_TARGET, | |
78 | COL_FSTYPE, | |
79 | COL_OPTIONS, | |
631280e0 KZ |
80 | COL_VFS_OPTIONS, |
81 | COL_FS_OPTIONS, | |
04fd7a9f KZ |
82 | COL_LABEL, |
83 | COL_UUID, | |
090b5e84 KZ |
84 | COL_PARTLABEL, |
85 | COL_PARTUUID, | |
46236388 | 86 | COL_MAJMIN, |
32e5466a KZ |
87 | COL_ACTION, |
88 | COL_OLD_TARGET, | |
89 | COL_OLD_OPTIONS, | |
a85ef33b DR |
90 | COL_SIZE, |
91 | COL_AVAIL, | |
92 | COL_USED, | |
93 | COL_USEPERC, | |
8b8cd87b | 94 | COL_FSROOT, |
7d8f4e0c | 95 | COL_TID, |
9238e0fa | 96 | COL_ID, |
327ea85a | 97 | COL_OPT_FIELDS, |
624f2b47 | 98 | COL_PROPAGATION, |
426f0cea | 99 | COL_FREQ, |
edaf38cf | 100 | COL_PASSNO |
04fd7a9f KZ |
101 | }; |
102 | ||
8c5eba3e KZ |
103 | enum { |
104 | TABTYPE_FSTAB = 1, | |
105 | TABTYPE_MTAB, | |
106 | TABTYPE_KERNEL | |
107 | }; | |
108 | ||
9d67679b KZ |
109 | /* column names */ |
110 | struct colinfo { | |
111 | const char *name; /* header */ | |
112 | double whint; /* width hint (N < 1 is in percent of termwidth) */ | |
218a3a94 | 113 | int flags; /* libsmartcols flags */ |
b152e359 | 114 | const char *help; /* column description */ |
9d67679b | 115 | const char *match; /* pattern for match_func() */ |
cd492186 | 116 | void *match_data; /* match specific data */ |
04fd7a9f KZ |
117 | }; |
118 | ||
af0dc7d3 | 119 | /* columns descriptions (don't use const, this is writable) */ |
edaf38cf | 120 | static struct colinfo infos[] = { |
218a3a94 OO |
121 | [COL_SOURCE] = { "SOURCE", 0.25, SCOLS_FL_NOEXTREMES, N_("source device") }, |
122 | [COL_TARGET] = { "TARGET", 0.30, SCOLS_FL_TREE| SCOLS_FL_NOEXTREMES, N_("mountpoint") }, | |
123 | [COL_FSTYPE] = { "FSTYPE", 0.10, SCOLS_FL_TRUNC, N_("filesystem type") }, | |
124 | [COL_OPTIONS] = { "OPTIONS", 0.10, SCOLS_FL_TRUNC, N_("all mount options") }, | |
125 | [COL_VFS_OPTIONS] = { "VFS-OPTIONS", 0.20, SCOLS_FL_TRUNC, N_("VFS specific mount options") }, | |
126 | [COL_FS_OPTIONS] = { "FS-OPTIONS", 0.10, SCOLS_FL_TRUNC, N_("FS specific mount options") }, | |
b152e359 KZ |
127 | [COL_LABEL] = { "LABEL", 0.10, 0, N_("filesystem label") }, |
128 | [COL_UUID] = { "UUID", 36, 0, N_("filesystem UUID") }, | |
090b5e84 KZ |
129 | [COL_PARTLABEL] = { "PARTLABEL", 0.10, 0, N_("partition label") }, |
130 | [COL_PARTUUID] = { "PARTUUID", 36, 0, N_("partition UUID") }, | |
b152e359 | 131 | [COL_MAJMIN] = { "MAJ:MIN", 6, 0, N_("major:minor device number") }, |
218a3a94 OO |
132 | [COL_ACTION] = { "ACTION", 10, SCOLS_FL_STRICTWIDTH, N_("action detected by --poll") }, |
133 | [COL_OLD_OPTIONS] = { "OLD-OPTIONS", 0.10, SCOLS_FL_TRUNC, N_("old mount options saved by --poll") }, | |
b152e359 | 134 | [COL_OLD_TARGET] = { "OLD-TARGET", 0.30, 0, N_("old mountpoint saved by --poll") }, |
218a3a94 OO |
135 | [COL_SIZE] = { "SIZE", 5, SCOLS_FL_RIGHT, N_("filesystem size") }, |
136 | [COL_AVAIL] = { "AVAIL", 5, SCOLS_FL_RIGHT, N_("filesystem size available") }, | |
137 | [COL_USED] = { "USED", 5, SCOLS_FL_RIGHT, N_("filesystem size used") }, | |
138 | [COL_USEPERC] = { "USE%", 3, SCOLS_FL_RIGHT, N_("filesystem use percentage") }, | |
139 | [COL_FSROOT] = { "FSROOT", 0.25, SCOLS_FL_NOEXTREMES, N_("filesystem root") }, | |
140 | [COL_TID] = { "TID", 4, SCOLS_FL_RIGHT, N_("task ID") }, | |
141 | [COL_ID] = { "ID", 2, SCOLS_FL_RIGHT, N_("mount ID") }, | |
142 | [COL_OPT_FIELDS] = { "OPT-FIELDS", 0.10, SCOLS_FL_TRUNC, N_("optional mount fields") }, | |
426f0cea | 143 | [COL_PROPAGATION] = { "PROPAGATION", 0.10, 0, N_("VFS propagation flags") }, |
218a3a94 OO |
144 | [COL_FREQ] = { "FREQ", 1, SCOLS_FL_RIGHT, N_("dump(8) period in days [fstab only]") }, |
145 | [COL_PASSNO] = { "PASSNO", 1, SCOLS_FL_RIGHT, N_("pass number on parallel fsck(8) [fstab only]") } | |
04fd7a9f KZ |
146 | }; |
147 | ||
edaf38cf KZ |
148 | /* columns[] array specifies all currently wanted output column. The columns |
149 | * are defined by infos[] array and you can specify (on command line) each | |
150 | * column twice. That's enough, dynamically allocated array of the columns is | |
151 | * unnecessary overkill and over-engineering in this case */ | |
152 | static int columns[ARRAY_SIZE(infos) * 2]; | |
153 | static int ncolumns; | |
154 | ||
155 | static inline size_t err_columns_index(size_t arysz, size_t idx) | |
156 | { | |
157 | if (idx >= arysz) | |
158 | errx(EXIT_FAILURE, _("too many columns specified, " | |
1d231190 | 159 | "the limit is %zu columns"), |
edaf38cf KZ |
160 | arysz - 1); |
161 | return idx; | |
162 | } | |
163 | ||
164 | #define add_column(ary, n, id) \ | |
165 | ((ary)[ err_columns_index(ARRAY_SIZE(ary), (n)) ] = (id)) | |
166 | ||
9d67679b | 167 | /* global flags */ |
af0dc7d3 | 168 | static int flags; |
9d67679b | 169 | |
9d67679b | 170 | |
582a5006 | 171 | /* poll actions (parsed --poll=<list> */ |
af0dc7d3 KZ |
172 | #define FINDMNT_NACTIONS 4 /* mount, umount, move, remount */ |
173 | static int actions[FINDMNT_NACTIONS]; | |
174 | static int nactions; | |
582a5006 | 175 | |
9d67679b | 176 | /* libmount cache */ |
af0dc7d3 | 177 | static struct libmnt_cache *cache; |
04fd7a9f | 178 | |
e346233e KZ |
179 | #ifdef HAVE_LIBUDEV |
180 | struct udev *udev; | |
181 | #endif | |
182 | ||
31f67453 KZ |
183 | static int match_func(struct libmnt_fs *fs, void *data __attribute__ ((__unused__))); |
184 | ||
185 | ||
00b4bcdf | 186 | static int get_column_id(int num) |
9d67679b | 187 | { |
9d67679b | 188 | assert(num < ncolumns); |
edaf38cf | 189 | assert((size_t) columns[num] < ARRAY_SIZE(infos)); |
fdedb45e | 190 | return columns[num]; |
9d67679b KZ |
191 | } |
192 | ||
00b4bcdf | 193 | static struct colinfo *get_column_info(int num) |
9d67679b KZ |
194 | { |
195 | return &infos[ get_column_id(num) ]; | |
196 | } | |
197 | ||
00b4bcdf | 198 | static const char *column_id_to_name(int id) |
9d67679b | 199 | { |
edaf38cf | 200 | assert((size_t) id < ARRAY_SIZE(infos)); |
9d67679b KZ |
201 | return infos[id].name; |
202 | } | |
203 | ||
00b4bcdf | 204 | static const char *get_column_name(int num) |
9d67679b | 205 | { |
fdedb45e | 206 | return get_column_info(num)->name; |
9d67679b KZ |
207 | } |
208 | ||
00b4bcdf | 209 | static float get_column_whint(int num) |
9d67679b | 210 | { |
fdedb45e | 211 | return get_column_info(num)->whint; |
9d67679b KZ |
212 | } |
213 | ||
32e5466a | 214 | static int get_column_flags(int num) |
9d67679b | 215 | { |
32e5466a | 216 | return get_column_info(num)->flags; |
9d67679b KZ |
217 | } |
218 | ||
00b4bcdf | 219 | static const char *get_match(int id) |
9d67679b | 220 | { |
edaf38cf | 221 | assert((size_t) id < ARRAY_SIZE(infos)); |
9d67679b KZ |
222 | return infos[id].match; |
223 | } | |
224 | ||
cd492186 KZ |
225 | static void *get_match_data(int id) |
226 | { | |
edaf38cf | 227 | assert((size_t) id < ARRAY_SIZE(infos)); |
cd492186 KZ |
228 | return infos[id].match_data; |
229 | } | |
230 | ||
00b4bcdf | 231 | static void set_match(int id, const char *match) |
9d67679b | 232 | { |
edaf38cf | 233 | assert((size_t) id < ARRAY_SIZE(infos)); |
9d67679b KZ |
234 | infos[id].match = match; |
235 | } | |
236 | ||
cd492186 KZ |
237 | static void set_match_data(int id, void *data) |
238 | { | |
edaf38cf | 239 | assert((size_t) id < ARRAY_SIZE(infos)); |
cd492186 KZ |
240 | infos[id].match_data = data; |
241 | } | |
242 | ||
4bfd4bff KZ |
243 | /* |
244 | * source match means COL_SOURCE *or* COL_MAJMIN, depends on | |
245 | * data format. | |
246 | */ | |
cd492186 KZ |
247 | static void set_source_match(const char *data) |
248 | { | |
249 | int maj, min; | |
250 | ||
251 | if (sscanf(data, "%d:%d", &maj, &min) == 2) { | |
252 | dev_t *devno = xmalloc(sizeof(dev_t)); | |
253 | ||
254 | *devno = makedev(maj, min); | |
255 | set_match(COL_MAJMIN, data); | |
256 | set_match_data(COL_MAJMIN, (void *) devno); | |
4bfd4bff | 257 | flags |= FL_NOSWAPMATCH; |
cd492186 KZ |
258 | } else |
259 | set_match(COL_SOURCE, data); | |
260 | } | |
261 | ||
48367e2d KZ |
262 | /* @tb has to be from kernel (so no fstab or so)! */ |
263 | static void enable_extra_target_match(struct libmnt_table *tb) | |
4bfd4bff | 264 | { |
48367e2d KZ |
265 | char *cn = NULL; |
266 | const char *tgt = NULL, *mnt = NULL; | |
267 | struct libmnt_fs *fs; | |
4bfd4bff KZ |
268 | |
269 | /* | |
270 | * Check if match pattern is mountpoint, if not use the | |
271 | * real mountpoint. | |
272 | */ | |
097e7f2f | 273 | if (flags & FL_NOCACHE) |
4631e254 | 274 | tgt = get_match(COL_TARGET); |
097e7f2f | 275 | else { |
4631e254 | 276 | tgt = cn = mnt_resolve_path(get_match(COL_TARGET), cache); |
097e7f2f KZ |
277 | if (!cn) |
278 | return; | |
279 | } | |
4bfd4bff | 280 | |
48367e2d KZ |
281 | fs = mnt_table_find_mountpoint(tb, tgt, MNT_ITER_BACKWARD); |
282 | if (fs) | |
283 | mnt = mnt_fs_get_target(fs); | |
4631e254 | 284 | if (mnt && strcmp(mnt, tgt) != 0) |
48367e2d | 285 | set_match(COL_TARGET, xstrdup(mnt)); /* replace the current setting */ |
4bfd4bff | 286 | |
4631e254 KZ |
287 | if (!cache) |
288 | free(cn); | |
4bfd4bff KZ |
289 | } |
290 | ||
cd492186 | 291 | |
32e5466a KZ |
292 | static int is_tabdiff_column(int id) |
293 | { | |
edaf38cf | 294 | assert((size_t) id < ARRAY_SIZE(infos)); |
32e5466a KZ |
295 | |
296 | switch(id) { | |
297 | case COL_ACTION: | |
298 | case COL_OLD_TARGET: | |
299 | case COL_OLD_OPTIONS: | |
300 | return 1; | |
301 | default: | |
302 | break; | |
303 | } | |
304 | return 0; | |
305 | } | |
306 | ||
9d67679b KZ |
307 | /* |
308 | * "findmnt" without any filter | |
309 | */ | |
00b4bcdf | 310 | static int is_listall_mode(void) |
9d67679b | 311 | { |
cd4ed46f KZ |
312 | if ((flags & FL_DF) && !(flags & FL_ALL)) |
313 | return 0; | |
314 | ||
9d67679b KZ |
315 | return (!get_match(COL_SOURCE) && |
316 | !get_match(COL_TARGET) && | |
317 | !get_match(COL_FSTYPE) && | |
cd492186 KZ |
318 | !get_match(COL_OPTIONS) && |
319 | !get_match(COL_MAJMIN)); | |
9d67679b KZ |
320 | } |
321 | ||
582a5006 KZ |
322 | /* |
323 | * Returns 1 if the @act is in the --poll=<list> | |
324 | */ | |
325 | static int has_poll_action(int act) | |
326 | { | |
327 | int i; | |
328 | ||
329 | if (!nactions) | |
330 | return 1; /* all actions enabled */ | |
331 | for (i = 0; i < nactions; i++) | |
332 | if (actions[i] == act) | |
333 | return 1; | |
334 | return 0; | |
335 | } | |
336 | ||
337 | static int poll_action_name_to_id(const char *name, size_t namesz) | |
338 | { | |
339 | int id = -1; | |
340 | ||
341 | if (strncasecmp(name, "move", namesz) == 0 && namesz == 4) | |
342 | id = MNT_TABDIFF_MOVE; | |
343 | else if (strncasecmp(name, "mount", namesz) == 0 && namesz == 5) | |
344 | id = MNT_TABDIFF_MOUNT; | |
345 | else if (strncasecmp(name, "umount", namesz) == 0 && namesz == 6) | |
346 | id = MNT_TABDIFF_UMOUNT; | |
347 | else if (strncasecmp(name, "remount", namesz) == 0 && namesz == 7) | |
348 | id = MNT_TABDIFF_REMOUNT; | |
349 | else | |
350 | warnx(_("unknown action: %s"), name); | |
351 | ||
352 | return id; | |
353 | } | |
354 | ||
9d67679b KZ |
355 | /* |
356 | * findmnt --first-only <devname|TAG=|mountpoint> | |
357 | * | |
358 | * ... it works like "mount <devname|TAG=|mountpoint>" | |
359 | */ | |
00b4bcdf | 360 | static int is_mount_compatible_mode(void) |
9d67679b KZ |
361 | { |
362 | if (!get_match(COL_SOURCE)) | |
363 | return 0; /* <devname|TAG=|mountpoint> is required */ | |
364 | if (get_match(COL_FSTYPE) || get_match(COL_OPTIONS)) | |
365 | return 0; /* cannot be restricted by -t or -O */ | |
366 | if (!(flags & FL_FIRSTONLY)) | |
367 | return 0; /* we have to return the first entry only */ | |
368 | ||
369 | return 1; /* ok */ | |
370 | } | |
371 | ||
32e5466a | 372 | static void disable_columns_truncate(void) |
9d67679b | 373 | { |
edaf38cf | 374 | size_t i; |
9d67679b | 375 | |
edaf38cf | 376 | for (i = 0; i < ARRAY_SIZE(infos); i++) |
218a3a94 | 377 | infos[i].flags &= ~SCOLS_FL_TRUNC; |
9d67679b KZ |
378 | } |
379 | ||
04fd7a9f KZ |
380 | /* |
381 | * converts @name to column ID | |
382 | */ | |
9d67679b | 383 | static int column_name_to_id(const char *name, size_t namesz) |
04fd7a9f | 384 | { |
edaf38cf | 385 | size_t i; |
04fd7a9f | 386 | |
edaf38cf | 387 | for (i = 0; i < ARRAY_SIZE(infos); i++) { |
9d67679b | 388 | const char *cn = column_id_to_name(i); |
04fd7a9f | 389 | |
9d67679b | 390 | if (!strncasecmp(name, cn, namesz) && !*(cn + namesz)) |
04fd7a9f KZ |
391 | return i; |
392 | } | |
fdedb45e | 393 | warnx(_("unknown column: %s"), name); |
04fd7a9f KZ |
394 | return -1; |
395 | } | |
396 | ||
e346233e KZ |
397 | |
398 | #ifdef HAVE_LIBUDEV | |
399 | static char *get_tag_from_udev(const char *devname, int col) | |
400 | { | |
401 | struct udev_device *dev; | |
402 | const char *data = NULL; | |
4ba4893b | 403 | char *res = NULL, *path; |
e346233e KZ |
404 | |
405 | if (!udev) | |
406 | udev = udev_new(); | |
407 | if (!udev) | |
408 | return NULL; | |
409 | ||
4ba4893b KZ |
410 | /* libudev don't like /dev/mapper/ symlinks */ |
411 | path = realpath(devname, NULL); | |
412 | if (path) | |
413 | devname = path; | |
414 | ||
e346233e KZ |
415 | if (strncmp(devname, "/dev/", 5) == 0) |
416 | devname += 5; | |
417 | ||
418 | dev = udev_device_new_from_subsystem_sysname(udev, "block", devname); | |
4ba4893b KZ |
419 | free(path); |
420 | ||
e346233e KZ |
421 | if (!dev) |
422 | return NULL; | |
423 | ||
424 | switch(col) { | |
425 | case COL_LABEL: | |
426 | data = udev_device_get_property_value(dev, "ID_FS_LABEL_ENC"); | |
427 | break; | |
428 | case COL_UUID: | |
429 | data = udev_device_get_property_value(dev, "ID_FS_UUID_ENC"); | |
430 | break; | |
431 | case COL_PARTUUID: | |
432 | data = udev_device_get_property_value(dev, "ID_PART_ENTRY_UUID"); | |
433 | break; | |
434 | case COL_PARTLABEL: | |
435 | data = udev_device_get_property_value(dev, "ID_PART_ENTRY_NAME"); | |
436 | break; | |
437 | default: | |
438 | break; | |
439 | } | |
440 | ||
441 | if (data) { | |
442 | res = xstrdup(data); | |
443 | unhexmangle_string(res); | |
444 | } | |
445 | ||
446 | udev_device_unref(dev); | |
447 | return res; | |
448 | } | |
449 | #endif /* HAVE_LIBUDEV */ | |
450 | ||
fdedb45e | 451 | /* Returns LABEL or UUID */ |
b3386c83 | 452 | static char *get_tag(struct libmnt_fs *fs, const char *tagname, int col |
81499ab2 KZ |
453 | #ifndef HAVE_LIBUDEV |
454 | __attribute__((__unused__)) | |
455 | #endif | |
456 | ) | |
9d67679b | 457 | { |
b3386c83 KZ |
458 | const char *t, *v; |
459 | char *res = NULL; | |
9d67679b KZ |
460 | |
461 | if (!mnt_fs_get_tag(fs, &t, &v) && !strcmp(t, tagname)) | |
b3386c83 | 462 | res = xstrdup(v); |
9d67679b | 463 | else { |
e346233e KZ |
464 | const char *dev = mnt_fs_get_source(fs); |
465 | ||
097e7f2f | 466 | if (dev && !(flags & FL_NOCACHE)) |
e346233e KZ |
467 | dev = mnt_resolve_spec(dev, cache); |
468 | #ifdef HAVE_LIBUDEV | |
469 | if (dev) | |
470 | res = get_tag_from_udev(dev, col); | |
471 | #endif | |
b3386c83 | 472 | if (!res) { |
e346233e | 473 | res = mnt_cache_find_tag_value(cache, dev, tagname); |
b3386c83 KZ |
474 | if (res && cache) |
475 | /* don't return pointer to cache */ | |
476 | res = xstrdup(res); | |
477 | } | |
9d67679b KZ |
478 | } |
479 | ||
480 | return res; | |
481 | } | |
482 | ||
b3386c83 | 483 | static char *get_vfs_attr(struct libmnt_fs *fs, int sizetype) |
a85ef33b DR |
484 | { |
485 | struct statvfs buf; | |
6901f22c | 486 | uint64_t vfs_attr = 0; |
a85ef33b DR |
487 | char *sizestr; |
488 | ||
489 | if (statvfs(mnt_fs_get_target(fs), &buf) != 0) | |
490 | return NULL; | |
491 | ||
492 | switch(sizetype) { | |
493 | case COL_SIZE: | |
494 | vfs_attr = buf.f_frsize * buf.f_blocks; | |
495 | break; | |
496 | case COL_AVAIL: | |
ed6c8c1b | 497 | vfs_attr = buf.f_frsize * buf.f_bavail; |
a85ef33b DR |
498 | break; |
499 | case COL_USED: | |
500 | vfs_attr = buf.f_frsize * (buf.f_blocks - buf.f_bfree); | |
501 | break; | |
502 | case COL_USEPERC: | |
503 | if (buf.f_blocks == 0) | |
203c945a | 504 | return xstrdup("-"); |
a85ef33b | 505 | |
d7bcb205 KZ |
506 | xasprintf(&sizestr, "%.0f%%", |
507 | (double)(buf.f_blocks - buf.f_bfree) / | |
508 | buf.f_blocks * 100); | |
a85ef33b DR |
509 | return sizestr; |
510 | } | |
511 | ||
2b6759df KZ |
512 | if (!vfs_attr) |
513 | sizestr = xstrdup("0"); | |
514 | else if (flags & FL_BYTES) | |
515 | xasprintf(&sizestr, "%ju", vfs_attr); | |
516 | else | |
517 | sizestr = size_to_human_string(SIZE_SUFFIX_1LETTER, vfs_attr); | |
518 | ||
519 | return sizestr; | |
a85ef33b DR |
520 | } |
521 | ||
46236388 | 522 | /* reads FS data from libmount |
46236388 | 523 | */ |
b3386c83 | 524 | static char *get_data(struct libmnt_fs *fs, int num) |
9d67679b | 525 | { |
b3386c83 | 526 | char *str = NULL; |
a85ef33b | 527 | int col_id = get_column_id(num); |
9d67679b | 528 | |
a85ef33b | 529 | switch (col_id) { |
04fd7a9f | 530 | case COL_SOURCE: |
b2214e1f KZ |
531 | { |
532 | const char *root = mnt_fs_get_root(fs); | |
b3386c83 | 533 | const char *spec = mnt_fs_get_srcpath(fs); |
4631e254 | 534 | char *cn = NULL; |
b2214e1f | 535 | |
b3386c83 | 536 | if (spec && (flags & FL_CANONICALIZE)) |
4631e254 | 537 | spec = cn = mnt_resolve_path(spec, cache); |
b3386c83 KZ |
538 | if (!spec) { |
539 | spec = mnt_fs_get_source(fs); | |
9d67679b | 540 | |
b3386c83 | 541 | if (spec && (flags & FL_EVALUATE)) |
4631e254 | 542 | spec = cn = mnt_resolve_spec(spec, cache); |
b2214e1f | 543 | } |
b3386c83 KZ |
544 | if (root && spec && !(flags & FL_NOFSROOT) && strcmp(root, "/")) |
545 | xasprintf(&str, "%s[%s]", spec, root); | |
546 | else if (spec) | |
547 | str = xstrdup(spec); | |
4631e254 KZ |
548 | if (!cache) |
549 | free(cn); | |
04fd7a9f | 550 | break; |
b2214e1f | 551 | } |
04fd7a9f | 552 | case COL_TARGET: |
b3386c83 | 553 | str = xstrdup(mnt_fs_get_target(fs)); |
04fd7a9f KZ |
554 | break; |
555 | case COL_FSTYPE: | |
b3386c83 | 556 | str = xstrdup(mnt_fs_get_fstype(fs)); |
04fd7a9f KZ |
557 | break; |
558 | case COL_OPTIONS: | |
b3386c83 | 559 | str = xstrdup(mnt_fs_get_options(fs)); |
04fd7a9f | 560 | break; |
631280e0 | 561 | case COL_VFS_OPTIONS: |
b3386c83 | 562 | str = xstrdup(mnt_fs_get_vfs_options(fs)); |
631280e0 KZ |
563 | break; |
564 | case COL_FS_OPTIONS: | |
b3386c83 | 565 | str = xstrdup(mnt_fs_get_fs_options(fs)); |
631280e0 | 566 | break; |
327ea85a | 567 | case COL_OPT_FIELDS: |
b3386c83 | 568 | str = xstrdup(mnt_fs_get_optional_fields(fs)); |
327ea85a | 569 | break; |
9d67679b | 570 | case COL_UUID: |
e346233e | 571 | str = get_tag(fs, "UUID", col_id); |
9d67679b | 572 | break; |
090b5e84 | 573 | case COL_PARTUUID: |
e346233e | 574 | str = get_tag(fs, "PARTUUID", col_id); |
090b5e84 | 575 | break; |
9d67679b | 576 | case COL_LABEL: |
e346233e | 577 | str = get_tag(fs, "LABEL", col_id); |
9d67679b | 578 | break; |
090b5e84 | 579 | case COL_PARTLABEL: |
e346233e | 580 | str = get_tag(fs, "PARTLABEL", col_id); |
090b5e84 KZ |
581 | break; |
582 | ||
46236388 KZ |
583 | case COL_MAJMIN: |
584 | { | |
585 | dev_t devno = mnt_fs_get_devno(fs); | |
60b17c6f KZ |
586 | if (!devno) |
587 | break; | |
588 | ||
85c9ca5a | 589 | if ((flags & FL_RAW) || (flags & FL_EXPORT)) |
b3386c83 | 590 | xasprintf(&str, "%u:%u", major(devno), minor(devno)); |
60b17c6f | 591 | else |
b3386c83 | 592 | xasprintf(&str, "%3u:%-3u", major(devno), minor(devno)); |
a85ef33b | 593 | break; |
46236388 | 594 | } |
a85ef33b DR |
595 | case COL_SIZE: |
596 | case COL_AVAIL: | |
597 | case COL_USED: | |
598 | case COL_USEPERC: | |
599 | str = get_vfs_attr(fs, col_id); | |
600 | break; | |
8b8cd87b | 601 | case COL_FSROOT: |
b3386c83 | 602 | str = xstrdup(mnt_fs_get_root(fs)); |
8b8cd87b | 603 | break; |
7d8f4e0c | 604 | case COL_TID: |
b3386c83 KZ |
605 | if (mnt_fs_get_tid(fs)) |
606 | xasprintf(&str, "%d", mnt_fs_get_tid(fs)); | |
7d8f4e0c | 607 | break; |
9238e0fa | 608 | case COL_ID: |
b3386c83 KZ |
609 | if (mnt_fs_get_id(fs)) |
610 | xasprintf(&str, "%d", mnt_fs_get_id(fs)); | |
9238e0fa | 611 | break; |
624f2b47 KZ |
612 | case COL_PROPAGATION: |
613 | if (mnt_fs_is_kernel(fs)) { | |
614 | unsigned long fl = 0; | |
615 | char *n = NULL; | |
616 | ||
617 | if (mnt_fs_get_propagation(fs, &fl) != 0) | |
618 | break; | |
619 | ||
620 | n = xstrdup((fl & MS_SHARED) ? "shared" : "private"); | |
621 | ||
622 | if (fl & MS_SLAVE) { | |
b3386c83 | 623 | xasprintf(&str, "%s,slave", n); |
624f2b47 | 624 | free(n); |
b3386c83 | 625 | n = str; |
624f2b47 KZ |
626 | } |
627 | if (fl & MS_UNBINDABLE) { | |
b3386c83 | 628 | xasprintf(&str, "%s,unbindable", n); |
624f2b47 | 629 | free(n); |
b3386c83 | 630 | n = str; |
624f2b47 KZ |
631 | } |
632 | str = n; | |
633 | } | |
634 | break; | |
426f0cea | 635 | case COL_FREQ: |
b3386c83 KZ |
636 | if (!mnt_fs_is_kernel(fs)) |
637 | xasprintf(&str, "%d", mnt_fs_get_freq(fs)); | |
426f0cea KZ |
638 | break; |
639 | case COL_PASSNO: | |
b3386c83 KZ |
640 | if (!mnt_fs_is_kernel(fs)) |
641 | xasprintf(&str, "%d", mnt_fs_get_passno(fs)); | |
426f0cea | 642 | break; |
04fd7a9f | 643 | default: |
9d67679b | 644 | break; |
04fd7a9f | 645 | } |
fdedb45e | 646 | return str; |
9d67679b KZ |
647 | } |
648 | ||
b3386c83 | 649 | static char *get_tabdiff_data(struct libmnt_fs *old_fs, |
32e5466a KZ |
650 | struct libmnt_fs *new_fs, |
651 | int change, | |
652 | int num) | |
653 | { | |
b3386c83 | 654 | char *str = NULL; |
32e5466a KZ |
655 | |
656 | switch (get_column_id(num)) { | |
657 | case COL_ACTION: | |
658 | switch (change) { | |
659 | case MNT_TABDIFF_MOUNT: | |
660 | str = _("mount"); | |
661 | break; | |
662 | case MNT_TABDIFF_UMOUNT: | |
663 | str = _("umount"); | |
664 | break; | |
665 | case MNT_TABDIFF_REMOUNT: | |
666 | str = _("remount"); | |
667 | break; | |
668 | case MNT_TABDIFF_MOVE: | |
669 | str = _("move"); | |
670 | break; | |
671 | default: | |
672 | str = _("unknown"); | |
673 | break; | |
674 | } | |
b3386c83 | 675 | str = xstrdup(str); |
32e5466a KZ |
676 | break; |
677 | case COL_OLD_OPTIONS: | |
77a1c5f7 KZ |
678 | if (old_fs && (change == MNT_TABDIFF_REMOUNT || |
679 | change == MNT_TABDIFF_UMOUNT)) | |
b3386c83 | 680 | str = xstrdup(mnt_fs_get_options(old_fs)); |
32e5466a KZ |
681 | break; |
682 | case COL_OLD_TARGET: | |
77a1c5f7 KZ |
683 | if (old_fs && (change == MNT_TABDIFF_MOVE || |
684 | change == MNT_TABDIFF_UMOUNT)) | |
b3386c83 | 685 | str = xstrdup(mnt_fs_get_target(old_fs)); |
32e5466a KZ |
686 | break; |
687 | default: | |
688 | if (new_fs) | |
689 | str = get_data(new_fs, num); | |
690 | else | |
691 | str = get_data(old_fs, num); | |
692 | break; | |
693 | } | |
694 | return str; | |
695 | } | |
696 | ||
fdedb45e | 697 | /* adds one line to the output @tab */ |
218a3a94 OO |
698 | static struct libscols_line *add_line(struct libscols_table *table, struct libmnt_fs *fs, |
699 | struct libscols_line *parent) | |
9d67679b | 700 | { |
fdedb45e | 701 | int i; |
218a3a94 | 702 | struct libscols_line *line = scols_table_new_line(table, parent); |
9d67679b | 703 | |
fdedb45e KZ |
704 | if (!line) { |
705 | warn(_("failed to add line to output")); | |
706 | return NULL; | |
9d67679b | 707 | } |
fdedb45e | 708 | for (i = 0; i < ncolumns; i++) |
85c9ca5a | 709 | scols_line_refer_data(line, i, get_data(fs, i)); |
9d67679b | 710 | |
218a3a94 | 711 | scols_line_set_userdata(line, fs); |
fdedb45e | 712 | return line; |
9d67679b KZ |
713 | } |
714 | ||
218a3a94 | 715 | static struct libscols_line *add_tabdiff_line(struct libscols_table *table, struct libmnt_fs *new_fs, |
32e5466a KZ |
716 | struct libmnt_fs *old_fs, int change) |
717 | { | |
718 | int i; | |
218a3a94 | 719 | struct libscols_line *line = scols_table_new_line(table, NULL); |
32e5466a KZ |
720 | |
721 | if (!line) { | |
722 | warn(_("failed to add line to output")); | |
723 | return NULL; | |
724 | } | |
725 | for (i = 0; i < ncolumns; i++) | |
85c9ca5a | 726 | scols_line_refer_data(line, i, |
32e5466a KZ |
727 | get_tabdiff_data(old_fs, new_fs, change, i)); |
728 | ||
729 | return line; | |
730 | } | |
731 | ||
218a3a94 | 732 | static int has_line(struct libscols_table *table, struct libmnt_fs *fs) |
049caefd | 733 | { |
218a3a94 OO |
734 | struct libscols_line *ln; |
735 | struct libscols_iter *itr; | |
aea3a3ba | 736 | int rc = 0; |
218a3a94 OO |
737 | |
738 | itr = scols_new_iter(SCOLS_ITER_FORWARD); | |
739 | if (!itr) | |
740 | return 0; | |
049caefd | 741 | |
aea3a3ba KZ |
742 | while (scols_table_next_line(table, itr, &ln) == 0) { |
743 | if ((struct libmnt_fs *) scols_line_get_userdata(ln) == fs) { | |
744 | rc = 1; | |
745 | break; | |
746 | } | |
049caefd | 747 | } |
aea3a3ba KZ |
748 | |
749 | scols_free_iter(itr); | |
750 | return rc; | |
049caefd KZ |
751 | } |
752 | ||
218a3a94 OO |
753 | /* reads filesystems from @tb (libmount) and fillin @table (output table) */ |
754 | static int create_treenode(struct libscols_table *table, struct libmnt_table *tb, | |
755 | struct libmnt_fs *fs, struct libscols_line *parent_line) | |
04fd7a9f | 756 | { |
68164f6c KZ |
757 | struct libmnt_fs *chld = NULL; |
758 | struct libmnt_iter *itr = NULL; | |
218a3a94 | 759 | struct libscols_line *line; |
fdedb45e | 760 | int rc = -1; |
9d67679b | 761 | |
fdedb45e KZ |
762 | if (!fs) { |
763 | /* first call, get root FS */ | |
68164f6c | 764 | if (mnt_table_get_root_fs(tb, &fs)) |
fdedb45e KZ |
765 | goto leave; |
766 | parent_line = NULL; | |
049caefd | 767 | |
218a3a94 | 768 | } else if ((flags & FL_SUBMOUNTS) && has_line(table, fs)) |
049caefd | 769 | return 0; |
9d67679b | 770 | |
fdedb45e KZ |
771 | itr = mnt_new_iter(MNT_ITER_FORWARD); |
772 | if (!itr) | |
773 | goto leave; | |
9d67679b | 774 | |
31f67453 | 775 | if ((flags & FL_SUBMOUNTS) || match_func(fs, NULL)) { |
218a3a94 | 776 | line = add_line(table, fs, parent_line); |
31f67453 KZ |
777 | if (!line) |
778 | goto leave; | |
779 | } else | |
780 | line = parent_line; | |
9d67679b | 781 | |
fdedb45e KZ |
782 | /* |
783 | * add all children to the output table | |
784 | */ | |
68164f6c | 785 | while(mnt_table_next_child_fs(tb, itr, fs, &chld) == 0) { |
218a3a94 | 786 | if (create_treenode(table, tb, chld, line)) |
fdedb45e | 787 | goto leave; |
9d67679b | 788 | } |
fdedb45e KZ |
789 | rc = 0; |
790 | leave: | |
791 | mnt_free_iter(itr); | |
792 | return rc; | |
04fd7a9f KZ |
793 | } |
794 | ||
20055151 | 795 | /* error callback */ |
6e5c0fc2 KZ |
796 | static int parser_errcb(struct libmnt_table *tb __attribute__ ((__unused__)), |
797 | const char *filename, int line) | |
20055151 | 798 | { |
b1b9f1c1 | 799 | warnx(_("%s: parse error at line %d"), filename, line); |
20055151 KZ |
800 | return 0; |
801 | } | |
802 | ||
8c5eba3e KZ |
803 | static char **append_tabfile(char **files, int *nfiles, char *filename) |
804 | { | |
99d618c0 | 805 | files = xrealloc(files, sizeof(char *) * (*nfiles + 1)); |
8c5eba3e KZ |
806 | files[(*nfiles)++] = filename; |
807 | return files; | |
808 | } | |
809 | ||
c7fcc830 KZ |
810 | static char **append_pid_tabfile(char **files, int *nfiles, pid_t pid) |
811 | { | |
812 | char *path = NULL; | |
813 | ||
814 | xasprintf(&path, "/proc/%d/mountinfo", (int) pid); | |
815 | return append_tabfile(files, nfiles, path); | |
816 | } | |
817 | ||
fdedb45e | 818 | /* calls libmount fstab/mtab/mountinfo parser */ |
8c5eba3e KZ |
819 | static struct libmnt_table *parse_tabfiles(char **files, |
820 | int nfiles, | |
821 | int tabtype) | |
04fd7a9f | 822 | { |
8c5eba3e | 823 | struct libmnt_table *tb; |
762ef0e1 | 824 | int rc = 0; |
20055151 | 825 | |
8c5eba3e | 826 | tb = mnt_new_table(); |
fdedb45e | 827 | if (!tb) { |
32e5466a | 828 | warn(_("failed to initialize libmount table")); |
04fd7a9f | 829 | return NULL; |
fdedb45e | 830 | } |
68164f6c | 831 | mnt_table_set_parser_errcb(tb, parser_errcb); |
20055151 | 832 | |
8c5eba3e KZ |
833 | do { |
834 | /* NULL means that libmount will use default paths */ | |
835 | const char *path = nfiles ? *files++ : NULL; | |
836 | ||
837 | switch (tabtype) { | |
838 | case TABTYPE_FSTAB: | |
839 | rc = mnt_table_parse_fstab(tb, path); | |
840 | break; | |
841 | case TABTYPE_MTAB: | |
842 | rc = mnt_table_parse_mtab(tb, path); | |
843 | break; | |
844 | case TABTYPE_KERNEL: | |
845 | if (!path) | |
846 | path = access(_PATH_PROC_MOUNTINFO, R_OK) == 0 ? | |
847 | _PATH_PROC_MOUNTINFO : | |
848 | _PATH_PROC_MOUNTS; | |
849 | ||
850 | rc = mnt_table_parse_file(tb, path); | |
851 | break; | |
852 | } | |
853 | if (rc) { | |
50fccba1 | 854 | mnt_unref_table(tb); |
8c5eba3e KZ |
855 | warn(_("can't read %s"), path); |
856 | return NULL; | |
857 | } | |
858 | } while (--nfiles > 0); | |
20055151 | 859 | |
04fd7a9f | 860 | return tb; |
04fd7a9f KZ |
861 | } |
862 | ||
fb329bbc ER |
863 | /* |
864 | * Parses mountinfo and calls mnt_cache_set_targets(cache, mtab). Only | |
865 | * necessary if @tb in main() was read from a non-kernel source. | |
866 | */ | |
7ee26cbf | 867 | static void cache_set_targets(struct libmnt_cache *tmp) |
fb329bbc | 868 | { |
23deb5ac KZ |
869 | struct libmnt_table *tb; |
870 | const char *path; | |
fb329bbc ER |
871 | |
872 | tb = mnt_new_table(); | |
873 | if (!tb) | |
23deb5ac | 874 | return; |
fb329bbc ER |
875 | |
876 | path = access(_PATH_PROC_MOUNTINFO, R_OK) == 0 ? | |
877 | _PATH_PROC_MOUNTINFO : | |
878 | _PATH_PROC_MOUNTS; | |
879 | ||
23deb5ac | 880 | if (mnt_table_parse_file(tb, path) == 0) |
7ee26cbf | 881 | mnt_cache_set_targets(tmp, tb); |
fb329bbc | 882 | |
fb329bbc ER |
883 | mnt_unref_table(tb); |
884 | } | |
885 | ||
2f1ac44b KZ |
886 | /* checks if @tb contains parent->child relations */ |
887 | static int tab_is_tree(struct libmnt_table *tb) | |
888 | { | |
889 | struct libmnt_fs *fs = NULL; | |
890 | struct libmnt_iter *itr = NULL; | |
891 | int rc = 0; | |
892 | ||
893 | itr = mnt_new_iter(MNT_ITER_BACKWARD); | |
894 | if (!itr) | |
895 | return 0; | |
896 | ||
6c373810 KZ |
897 | rc = (mnt_table_next_fs(tb, itr, &fs) == 0 && |
898 | mnt_fs_is_kernel(fs) && | |
899 | mnt_fs_get_root(fs)); | |
2f1ac44b KZ |
900 | |
901 | mnt_free_iter(itr); | |
902 | return rc; | |
903 | } | |
904 | ||
9c277ede KZ |
905 | /* checks if all fs in @tb are from kernel */ |
906 | static int tab_is_kernel(struct libmnt_table *tb) | |
907 | { | |
908 | struct libmnt_fs *fs = NULL; | |
909 | struct libmnt_iter *itr = NULL; | |
910 | ||
911 | itr = mnt_new_iter(MNT_ITER_BACKWARD); | |
912 | if (!itr) | |
913 | return 0; | |
914 | ||
915 | while (mnt_table_next_fs(tb, itr, &fs) == 0) { | |
916 | if (!mnt_fs_is_kernel(fs)) { | |
917 | mnt_free_iter(itr); | |
918 | return 0; | |
919 | } | |
920 | } | |
921 | ||
922 | mnt_free_iter(itr); | |
923 | return 1; | |
924 | } | |
b215d8e9 | 925 | |
68164f6c | 926 | /* filter function for libmount (mnt_table_find_next_fs()) */ |
6e5c0fc2 KZ |
927 | static int match_func(struct libmnt_fs *fs, |
928 | void *data __attribute__ ((__unused__))) | |
04fd7a9f | 929 | { |
04fd7a9f | 930 | int rc = flags & FL_INVERT ? 1 : 0; |
9d67679b | 931 | const char *m; |
cd492186 | 932 | void *md; |
04fd7a9f | 933 | |
9d67679b KZ |
934 | m = get_match(COL_FSTYPE); |
935 | if (m && !mnt_fs_match_fstype(fs, m)) | |
04fd7a9f | 936 | return rc; |
9d67679b KZ |
937 | |
938 | m = get_match(COL_OPTIONS); | |
939 | if (m && !mnt_fs_match_options(fs, m)) | |
04fd7a9f KZ |
940 | return rc; |
941 | ||
cd492186 KZ |
942 | md = get_match_data(COL_MAJMIN); |
943 | if (md && mnt_fs_get_devno(fs) != *((dev_t *) md)) | |
944 | return rc; | |
945 | ||
4096946f KZ |
946 | m = get_match(COL_TARGET); |
947 | if (m && !mnt_fs_match_target(fs, m, cache)) | |
948 | return rc; | |
949 | ||
950 | m = get_match(COL_SOURCE); | |
951 | if (m && !mnt_fs_match_source(fs, m, cache)) | |
952 | return rc; | |
953 | ||
cd4ed46f KZ |
954 | if ((flags & FL_DF) && !(flags & FL_ALL)) { |
955 | const char *type = mnt_fs_get_fstype(fs); | |
956 | ||
957 | if (type && strstr(type, "tmpfs")) /* tmpfs is wanted */ | |
958 | return !rc; | |
959 | ||
960 | if (mnt_fs_is_pseudofs(fs)) | |
961 | return rc; | |
962 | } | |
963 | ||
04fd7a9f KZ |
964 | return !rc; |
965 | } | |
966 | ||
fdedb45e | 967 | /* iterate over filesystems in @tb */ |
68164f6c KZ |
968 | static struct libmnt_fs *get_next_fs(struct libmnt_table *tb, |
969 | struct libmnt_iter *itr) | |
04fd7a9f | 970 | { |
68164f6c | 971 | struct libmnt_fs *fs = NULL; |
9d67679b KZ |
972 | |
973 | if (is_listall_mode()) { | |
974 | /* | |
975 | * Print whole file | |
976 | */ | |
e3963f60 KZ |
977 | if (mnt_table_next_fs(tb, itr, &fs) != 0) |
978 | return NULL; | |
9d67679b KZ |
979 | |
980 | } else if (is_mount_compatible_mode()) { | |
981 | /* | |
982 | * Look up for FS in the same way how mount(8) searchs in fstab | |
983 | * | |
984 | * findmnt -f <spec> | |
985 | */ | |
68164f6c | 986 | fs = mnt_table_find_source(tb, get_match(COL_SOURCE), |
9d67679b | 987 | mnt_iter_get_direction(itr)); |
9a30c6ef KZ |
988 | |
989 | if (!fs && !(flags & FL_NOSWAPMATCH)) | |
68164f6c | 990 | fs = mnt_table_find_target(tb, get_match(COL_SOURCE), |
9d67679b KZ |
991 | mnt_iter_get_direction(itr)); |
992 | } else { | |
993 | /* | |
994 | * Look up for all matching entries | |
995 | * | |
996 | * findmnt [-l] <source> <target> [-O <options>] [-t <types>] | |
997 | * findmnt [-l] <spec> [-O <options>] [-t <types>] | |
998 | */ | |
999 | again: | |
68164f6c | 1000 | mnt_table_find_next_fs(tb, itr, match_func, NULL, &fs); |
9d67679b KZ |
1001 | |
1002 | if (!fs && | |
1003 | !(flags & FL_NOSWAPMATCH) && | |
1004 | !get_match(COL_TARGET) && get_match(COL_SOURCE)) { | |
1005 | ||
1006 | /* swap 'spec' and target. */ | |
1007 | set_match(COL_TARGET, get_match(COL_SOURCE)); | |
1008 | set_match(COL_SOURCE, NULL); | |
1009 | mnt_reset_iter(itr, -1); | |
1010 | ||
1011 | goto again; | |
1012 | } | |
1013 | } | |
9d67679b | 1014 | |
fdedb45e | 1015 | return fs; |
04fd7a9f KZ |
1016 | } |
1017 | ||
31f67453 KZ |
1018 | /* |
1019 | * Filter out unwanted lines for --list output or top level lines for | |
1020 | * --submounts tree output. | |
1021 | */ | |
68164f6c | 1022 | static int add_matching_lines(struct libmnt_table *tb, |
218a3a94 | 1023 | struct libscols_table *table, int direction) |
049caefd | 1024 | { |
68164f6c KZ |
1025 | struct libmnt_iter *itr = NULL; |
1026 | struct libmnt_fs *fs; | |
049caefd KZ |
1027 | int nlines = 0, rc = -1; |
1028 | ||
1029 | itr = mnt_new_iter(direction); | |
1030 | if (!itr) { | |
1031 | warn(_("failed to initialize libmount iterator")); | |
1032 | goto done; | |
1033 | } | |
1034 | ||
1035 | while((fs = get_next_fs(tb, itr))) { | |
85c9ca5a | 1036 | if ((flags & FL_TREE) || (flags & FL_SUBMOUNTS)) |
218a3a94 | 1037 | rc = create_treenode(table, tb, fs, NULL); |
049caefd | 1038 | else |
218a3a94 | 1039 | rc = !add_line(table, fs, NULL); |
049caefd KZ |
1040 | if (rc) |
1041 | goto done; | |
1042 | nlines++; | |
1043 | if (flags & FL_FIRSTONLY) | |
1044 | break; | |
1045 | flags |= FL_NOSWAPMATCH; | |
1046 | } | |
1047 | ||
1048 | if (nlines) | |
1049 | rc = 0; | |
1050 | done: | |
1051 | mnt_free_iter(itr); | |
1052 | return rc; | |
1053 | } | |
1054 | ||
582a5006 KZ |
1055 | static int poll_match(struct libmnt_fs *fs) |
1056 | { | |
1057 | int rc = match_func(fs, NULL); | |
1058 | ||
1059 | if (rc == 0 && !(flags & FL_NOSWAPMATCH) && | |
1060 | get_match(COL_SOURCE) && !get_match(COL_TARGET)) { | |
1061 | /* | |
1062 | * findmnt --poll /foo | |
cd492186 | 1063 | * The '/foo' maybe source as well as target. |
582a5006 KZ |
1064 | */ |
1065 | const char *str = get_match(COL_SOURCE); | |
1066 | ||
1067 | set_match(COL_TARGET, str); /* swap */ | |
1068 | set_match(COL_SOURCE, NULL); | |
1069 | ||
1070 | rc = match_func(fs, NULL); | |
1071 | ||
1072 | set_match(COL_TARGET, NULL); /* restore */ | |
1073 | set_match(COL_SOURCE, str); | |
1074 | ||
1075 | } | |
1076 | return rc; | |
1077 | } | |
1078 | ||
32e5466a | 1079 | static int poll_table(struct libmnt_table *tb, const char *tabfile, |
218a3a94 | 1080 | int timeout, struct libscols_table *table, int direction) |
32e5466a | 1081 | { |
d1cabd5c | 1082 | FILE *f = NULL; |
32e5466a KZ |
1083 | int rc = -1; |
1084 | struct libmnt_iter *itr = NULL; | |
1085 | struct libmnt_table *tb_new = NULL; | |
1086 | struct libmnt_tabdiff *diff = NULL; | |
1087 | struct pollfd fds[1]; | |
1088 | ||
1089 | tb_new = mnt_new_table(); | |
1090 | if (!tb_new) { | |
1091 | warn(_("failed to initialize libmount table")); | |
1092 | goto done; | |
1093 | } | |
1094 | ||
1095 | itr = mnt_new_iter(direction); | |
1096 | if (!itr) { | |
1097 | warn(_("failed to initialize libmount iterator")); | |
1098 | goto done; | |
1099 | } | |
1100 | ||
1101 | diff = mnt_new_tabdiff(); | |
1102 | if (!diff) { | |
1103 | warn(_("failed to initialize libmount tabdiff")); | |
1104 | goto done; | |
1105 | } | |
1106 | ||
1107 | /* cache is unnecessary to detect changes */ | |
1108 | mnt_table_set_cache(tb, NULL); | |
1109 | mnt_table_set_cache(tb_new, NULL); | |
1110 | ||
1111 | f = fopen(tabfile, "r"); | |
1112 | if (!f) { | |
289dcc90 | 1113 | warn(_("cannot open %s"), tabfile); |
32e5466a KZ |
1114 | goto done; |
1115 | } | |
1116 | ||
1117 | mnt_table_set_parser_errcb(tb_new, parser_errcb); | |
1118 | ||
1119 | fds[0].fd = fileno(f); | |
1120 | fds[0].events = POLLPRI; | |
1121 | ||
1122 | while (1) { | |
1123 | struct libmnt_table *tmp; | |
1124 | struct libmnt_fs *old, *new; | |
582a5006 | 1125 | int change, count; |
32e5466a | 1126 | |
582a5006 KZ |
1127 | count = poll(fds, 1, timeout); |
1128 | if (count == 0) | |
ad38fb9f | 1129 | break; /* timeout */ |
582a5006 | 1130 | if (count < 0) { |
32e5466a KZ |
1131 | warn(_("poll() failed")); |
1132 | goto done; | |
1133 | } | |
1134 | ||
1135 | rewind(f); | |
1136 | rc = mnt_table_parse_stream(tb_new, f, tabfile); | |
1137 | if (!rc) | |
1138 | rc = mnt_diff_tables(diff, tb, tb_new); | |
1139 | if (rc < 0) | |
1140 | goto done; | |
1141 | ||
582a5006 | 1142 | count = 0; |
32e5466a KZ |
1143 | mnt_reset_iter(itr, direction); |
1144 | while(mnt_tabdiff_next_change( | |
1145 | diff, itr, &old, &new, &change) == 0) { | |
1146 | ||
582a5006 KZ |
1147 | if (!has_poll_action(change)) |
1148 | continue; | |
1149 | if (!poll_match(new ? new : old)) | |
1150 | continue; | |
1151 | count++; | |
218a3a94 | 1152 | rc = !add_tabdiff_line(table, new, old, change); |
32e5466a KZ |
1153 | if (rc) |
1154 | goto done; | |
1155 | if (flags & FL_FIRSTONLY) | |
1156 | break; | |
1157 | } | |
1158 | ||
582a5006 | 1159 | if (count) { |
218a3a94 | 1160 | rc = scols_print_table(table); |
582a5006 KZ |
1161 | if (rc) |
1162 | goto done; | |
1163 | } | |
32e5466a KZ |
1164 | |
1165 | /* swap tables */ | |
1166 | tmp = tb; | |
1167 | tb = tb_new; | |
1168 | tb_new = tmp; | |
1169 | ||
218a3a94 | 1170 | scols_table_remove_lines(table); |
32e5466a | 1171 | mnt_reset_table(tb_new); |
582a5006 KZ |
1172 | |
1173 | if (count && (flags & FL_FIRSTONLY)) | |
1174 | break; | |
32e5466a KZ |
1175 | } |
1176 | ||
1177 | rc = 0; | |
1178 | done: | |
50fccba1 | 1179 | mnt_unref_table(tb_new); |
32e5466a KZ |
1180 | mnt_free_tabdiff(diff); |
1181 | mnt_free_iter(itr); | |
d1cabd5c KZ |
1182 | if (f) |
1183 | fclose(f); | |
32e5466a KZ |
1184 | return rc; |
1185 | } | |
1186 | ||
bebdda30 KZ |
1187 | static int uniq_fs_target_cmp( |
1188 | struct libmnt_table *tb __attribute__((__unused__)), | |
1189 | struct libmnt_fs *a, | |
1190 | struct libmnt_fs *b) | |
1191 | { | |
1192 | return !mnt_fs_match_target(a, mnt_fs_get_target(b), cache); | |
1193 | } | |
1194 | ||
abafd686 | 1195 | static void __attribute__((__noreturn__)) usage(FILE *out) |
04fd7a9f | 1196 | { |
edaf38cf | 1197 | size_t i; |
9ead0006 | 1198 | |
5cc12c40 | 1199 | fputs(USAGE_HEADER, out); |
9d67679b | 1200 | fprintf(out, _( |
9d67679b KZ |
1201 | " %1$s [options]\n" |
1202 | " %1$s [options] <device> | <mountpoint>\n" | |
1203 | " %1$s [options] <device> <mountpoint>\n" | |
1204 | " %1$s [options] [--source <device>] [--target <mountpoint>]\n"), | |
1205 | program_invocation_short_name); | |
04fd7a9f | 1206 | |
451dbcfa BS |
1207 | fputs(USAGE_SEPARATOR, out); |
1208 | fputs(_("Find a (mounted) filesystem.\n"), out); | |
1209 | ||
b95c6e88 KZ |
1210 | fputs(USAGE_OPTIONS, out); |
1211 | fputs(_(" -s, --fstab search in static table of filesystems\n"), out); | |
1212 | fputs(_(" -m, --mtab search in table of mounted filesystems\n"), out); | |
1213 | fputs(_(" -k, --kernel search in kernel table of mounted\n" | |
ab5b4f83 | 1214 | " filesystems (default)\n"), out); |
b95c6e88 KZ |
1215 | fputc('\n', out); |
1216 | fputs(_(" -p, --poll[=<list>] monitor changes in table of mounted filesystems\n"), out); | |
1217 | fputs(_(" -w, --timeout <num> upper limit in milliseconds that --poll will block\n"), out); | |
1218 | fputc('\n', out); | |
1219 | ||
1220 | fputs(_(" -A, --all disable all built-in filters, print all filesystems\n"), out); | |
1221 | fputs(_(" -a, --ascii use ASCII chars for tree formatting\n"), out); | |
2b6759df | 1222 | fputs(_(" -b, --bytes print sizes in bytes rather than in human readable format\n"), out); |
ab5b4f83 | 1223 | fputs(_(" -C, --nocanonicalize don't canonicalize when comparing paths\n"), out); |
b95c6e88 KZ |
1224 | fputs(_(" -c, --canonicalize canonicalize printed paths\n"), out); |
1225 | fputs(_(" -D, --df imitate the output of df(1)\n"), out); | |
1226 | fputs(_(" -d, --direction <word> direction of search, 'forward' or 'backward'\n"), out); | |
1227 | fputs(_(" -e, --evaluate convert tags (LABEL,UUID,PARTUUID,PARTLABEL) \n" | |
1228 | " to device names\n"), out); | |
1229 | fputs(_(" -F, --tab-file <path> alternative file for -s, -m or -k options\n"), out); | |
1230 | fputs(_(" -f, --first-only print the first found filesystem only\n"), out); | |
1231 | fputs(_(" -i, --invert invert the sense of matching\n"), out); | |
1232 | fputs(_(" -l, --list use list format output\n"), out); | |
1233 | fputs(_(" -N, --task <tid> use alternative namespace (/proc/<tid>/mountinfo file)\n"), out); | |
1234 | fputs(_(" -n, --noheadings don't print column headings\n"), out); | |
b95c6e88 KZ |
1235 | fputs(_(" -O, --options <list> limit the set of filesystems by mount options\n"), out); |
1236 | fputs(_(" -o, --output <list> the output columns to be shown\n"), out); | |
1237 | fputs(_(" -P, --pairs use key=\"value\" output format\n"), out); | |
b95c6e88 | 1238 | fputs(_(" -R, --submounts print all submounts for the matching filesystems\n"), out); |
ab5b4f83 | 1239 | fputs(_(" -r, --raw use raw output format\n"), out); |
b95c6e88 KZ |
1240 | fputs(_(" -S, --source <string> the device to mount (by name, maj:min, \n" |
1241 | " LABEL=, UUID=, PARTUUID=, PARTLABEL=)\n"), out); | |
1242 | fputs(_(" -T, --target <string> the mountpoint to use\n"), out); | |
ab5b4f83 BS |
1243 | fputs(_(" -t, --types <list> limit the set of filesystems by FS types\n"), out); |
1244 | fputs(_(" -U, --uniq ignore filesystems with duplicate target\n"), out); | |
1245 | fputs(_(" -u, --notruncate don't truncate text in columns\n"), out); | |
1246 | fputs(_(" -v, --nofsroot don't print [/dir] for bind or btrfs mounts\n"), out); | |
04fd7a9f | 1247 | |
5cc12c40 SK |
1248 | fputs(USAGE_SEPARATOR, out); |
1249 | fputs(USAGE_HELP, out); | |
1250 | fputs(USAGE_VERSION, out); | |
9ead0006 KZ |
1251 | |
1252 | fprintf(out, _("\nAvailable columns:\n")); | |
1253 | ||
edaf38cf | 1254 | for (i = 0; i < ARRAY_SIZE(infos); i++) |
b152e359 | 1255 | fprintf(out, " %11s %s\n", infos[i].name, _(infos[i].help)); |
9ead0006 | 1256 | |
beda9dd3 | 1257 | fprintf(out, USAGE_MAN_TAIL("findmnt(8)")); |
04fd7a9f KZ |
1258 | |
1259 | exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); | |
1260 | } | |
1261 | ||
1262 | int main(int argc, char *argv[]) | |
1263 | { | |
68164f6c | 1264 | struct libmnt_table *tb = NULL; |
8c5eba3e | 1265 | char **tabfiles = NULL; |
9d67679b | 1266 | int direction = MNT_ITER_FORWARD; |
cd4ed46f | 1267 | int i, c, rc = -1, timeout = -1; |
8c5eba3e | 1268 | int ntabfiles = 0, tabtype = 0; |
c57dca68 | 1269 | char *outarg = NULL; |
fdedb45e | 1270 | |
218a3a94 | 1271 | struct libscols_table *table = NULL; |
fdedb45e | 1272 | |
6c7d5ae9 | 1273 | static const struct option longopts[] = { |
cd4ed46f | 1274 | { "all", 0, 0, 'A' }, |
9d67679b | 1275 | { "ascii", 0, 0, 'a' }, |
2b6759df | 1276 | { "bytes", 0, 0, 'b' }, |
04fd7a9f KZ |
1277 | { "canonicalize", 0, 0, 'c' }, |
1278 | { "direction", 1, 0, 'd' }, | |
eda399b9 | 1279 | { "df", 0, 0, 'D' }, |
04fd7a9f | 1280 | { "evaluate", 0, 0, 'e' }, |
9d67679b | 1281 | { "first-only", 0, 0, 'f' }, |
2f1ac44b | 1282 | { "fstab", 0, 0, 's' }, |
04fd7a9f KZ |
1283 | { "help", 0, 0, 'h' }, |
1284 | { "invert", 0, 0, 'i' }, | |
9d67679b KZ |
1285 | { "kernel", 0, 0, 'k' }, |
1286 | { "list", 0, 0, 'l' }, | |
1287 | { "mtab", 0, 0, 'm' }, | |
1288 | { "noheadings", 0, 0, 'n' }, | |
1289 | { "notruncate", 0, 0, 'u' }, | |
04fd7a9f | 1290 | { "options", 1, 0, 'O' }, |
9d67679b | 1291 | { "output", 1, 0, 'o' }, |
582a5006 | 1292 | { "poll", 2, 0, 'p' }, |
49e9fd3a | 1293 | { "pairs", 0, 0, 'P' }, |
9d67679b | 1294 | { "raw", 0, 0, 'r' }, |
04fd7a9f | 1295 | { "types", 1, 0, 't' }, |
097e7f2f | 1296 | { "nocanonicalize", 0, 0, 'C' }, |
395eb05d | 1297 | { "nofsroot", 0, 0, 'v' }, |
049caefd | 1298 | { "submounts", 0, 0, 'R' }, |
9d67679b | 1299 | { "source", 1, 0, 'S' }, |
2f1ac44b | 1300 | { "tab-file", 1, 0, 'F' }, |
c7fcc830 | 1301 | { "task", 1, 0, 'N' }, |
9d67679b | 1302 | { "target", 1, 0, 'T' }, |
ad38fb9f | 1303 | { "timeout", 1, 0, 'w' }, |
bebdda30 | 1304 | { "uniq", 0, 0, 'U' }, |
5cc12c40 | 1305 | { "version", 0, 0, 'V' }, |
9d67679b | 1306 | |
04fd7a9f KZ |
1307 | { NULL, 0, 0, 0 } |
1308 | }; | |
1309 | ||
f1622b57 | 1310 | static const ul_excl_t excl[] = { /* rows and cols in in ASCII order */ |
097e7f2f KZ |
1311 | { 'C', 'c'}, /* [no]canonicalize */ |
1312 | { 'C', 'e' }, /* nocanonicalize, evaluate */ | |
f1622b57 KZ |
1313 | { 'N','k','m','s' }, /* task,kernel,mtab,fstab */ |
1314 | { 'P','l','r' }, /* pairs,list,raw */ | |
1315 | { 'm','p','s' }, /* mtab,poll,fstab */ | |
1316 | { 0 } | |
1317 | }; | |
1318 | int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT; | |
1319 | ||
04fd7a9f KZ |
1320 | setlocale(LC_ALL, ""); |
1321 | bindtextdomain(PACKAGE, LOCALEDIR); | |
1322 | textdomain(PACKAGE); | |
c05a80ca | 1323 | atexit(close_stdout); |
04fd7a9f | 1324 | |
9d67679b | 1325 | /* default output format */ |
85c9ca5a | 1326 | flags |= FL_TREE; |
04fd7a9f | 1327 | |
9d67679b | 1328 | while ((c = getopt_long(argc, argv, |
097e7f2f | 1329 | "AabCcDd:ehifF:o:O:p::PklmnN:rst:uvRS:T:Uw:V", |
d466c6a1 | 1330 | longopts, NULL)) != -1) { |
f1622b57 KZ |
1331 | |
1332 | err_exclusive_options(c, longopts, excl, excl_st); | |
1333 | ||
04fd7a9f | 1334 | switch(c) { |
cd4ed46f KZ |
1335 | case 'A': |
1336 | flags |= FL_ALL; | |
1337 | break; | |
9d67679b | 1338 | case 'a': |
85c9ca5a | 1339 | flags |= FL_ASCII; |
9d67679b | 1340 | break; |
2b6759df KZ |
1341 | case 'b': |
1342 | flags |= FL_BYTES; | |
1343 | break; | |
097e7f2f KZ |
1344 | case 'C': |
1345 | flags |= FL_NOCACHE; | |
1346 | break; | |
04fd7a9f KZ |
1347 | case 'c': |
1348 | flags |= FL_CANONICALIZE; | |
1349 | break; | |
eda399b9 | 1350 | case 'D': |
85c9ca5a | 1351 | flags &= ~FL_TREE; |
cd4ed46f | 1352 | flags |= FL_DF; |
eda399b9 | 1353 | break; |
04fd7a9f | 1354 | case 'd': |
4e6bd74c | 1355 | if (!strcmp(optarg, "forward")) |
04fd7a9f | 1356 | direction = MNT_ITER_FORWARD; |
4e6bd74c | 1357 | else if (!strcmp(optarg, "backward")) |
04fd7a9f KZ |
1358 | direction = MNT_ITER_BACKWARD; |
1359 | else | |
1360 | errx(EXIT_FAILURE, | |
8e350e48 | 1361 | _("unknown direction '%s'"), optarg); |
04fd7a9f KZ |
1362 | break; |
1363 | case 'e': | |
1364 | flags |= FL_EVALUATE; | |
1365 | break; | |
1366 | case 'h': | |
1367 | usage(stdout); | |
1368 | break; | |
1369 | case 'i': | |
1370 | flags |= FL_INVERT; | |
1371 | break; | |
9d67679b | 1372 | case 'f': |
04fd7a9f KZ |
1373 | flags |= FL_FIRSTONLY; |
1374 | break; | |
2f1ac44b | 1375 | case 'F': |
8c5eba3e | 1376 | tabfiles = append_tabfile(tabfiles, &ntabfiles, optarg); |
2f1ac44b | 1377 | break; |
9d67679b | 1378 | case 'u': |
32e5466a | 1379 | disable_columns_truncate(); |
9d67679b | 1380 | break; |
04fd7a9f | 1381 | case 'o': |
c57dca68 | 1382 | outarg = optarg; |
04fd7a9f KZ |
1383 | break; |
1384 | case 'O': | |
9d67679b | 1385 | set_match(COL_OPTIONS, optarg); |
04fd7a9f | 1386 | break; |
32e5466a | 1387 | case 'p': |
bdc3ed66 | 1388 | if (optarg) { |
c87638ad | 1389 | nactions = string_to_idarray(optarg, |
bdc3ed66 KZ |
1390 | actions, ARRAY_SIZE(actions), |
1391 | poll_action_name_to_id); | |
1392 | if (nactions < 0) | |
1393 | exit(EXIT_FAILURE); | |
1394 | } | |
32e5466a | 1395 | flags |= FL_POLL; |
85c9ca5a | 1396 | flags &= ~FL_TREE; |
32e5466a | 1397 | break; |
49e9fd3a | 1398 | case 'P': |
85c9ca5a KZ |
1399 | flags |= FL_EXPORT; |
1400 | flags &= ~FL_TREE; | |
49e9fd3a | 1401 | break; |
fdedb45e | 1402 | case 'm': /* mtab */ |
8c5eba3e | 1403 | tabtype = TABTYPE_MTAB; |
85c9ca5a | 1404 | flags &= ~FL_TREE; |
04fd7a9f | 1405 | break; |
fdedb45e | 1406 | case 's': /* fstab */ |
8c5eba3e | 1407 | tabtype = TABTYPE_FSTAB; |
85c9ca5a | 1408 | flags &= ~FL_TREE; |
04fd7a9f | 1409 | break; |
fdedb45e | 1410 | case 'k': /* kernel (mountinfo) */ |
8c5eba3e | 1411 | tabtype = TABTYPE_KERNEL; |
04fd7a9f KZ |
1412 | break; |
1413 | case 't': | |
9d67679b KZ |
1414 | set_match(COL_FSTYPE, optarg); |
1415 | break; | |
1416 | case 'r': | |
85c9ca5a KZ |
1417 | flags &= ~FL_TREE; /* disable the default */ |
1418 | flags |= FL_RAW; /* enable raw */ | |
9d67679b KZ |
1419 | break; |
1420 | case 'l': | |
85c9ca5a | 1421 | flags &= ~FL_TREE; /* disable the default */ |
9d67679b KZ |
1422 | break; |
1423 | case 'n': | |
85c9ca5a | 1424 | flags |= FL_NOHEADINGS; |
9d67679b | 1425 | break; |
c7fcc830 | 1426 | case 'N': |
c7fcc830 KZ |
1427 | tabtype = TABTYPE_KERNEL; |
1428 | tabfiles = append_pid_tabfile(tabfiles, &ntabfiles, | |
1429 | strtou32_or_err(optarg, | |
1430 | _("invalid TID argument"))); | |
1431 | break; | |
b2214e1f KZ |
1432 | case 'v': |
1433 | flags |= FL_NOFSROOT; | |
1434 | break; | |
049caefd KZ |
1435 | case 'R': |
1436 | flags |= FL_SUBMOUNTS; | |
1437 | break; | |
9d67679b | 1438 | case 'S': |
cd492186 | 1439 | set_source_match(optarg); |
9d67679b KZ |
1440 | flags |= FL_NOSWAPMATCH; |
1441 | break; | |
1442 | case 'T': | |
1443 | set_match(COL_TARGET, optarg); | |
1444 | flags |= FL_NOSWAPMATCH; | |
04fd7a9f | 1445 | break; |
bebdda30 KZ |
1446 | case 'U': |
1447 | flags |= FL_UNIQ; | |
1448 | break; | |
ad38fb9f | 1449 | case 'w': |
db41a429 | 1450 | timeout = strtos32_or_err(optarg, _("invalid timeout argument")); |
ad38fb9f | 1451 | break; |
5cc12c40 SK |
1452 | case 'V': |
1453 | printf(UTIL_LINUX_VERSION); | |
1454 | return EXIT_SUCCESS; | |
04fd7a9f KZ |
1455 | default: |
1456 | usage(stderr); | |
1457 | break; | |
1458 | } | |
1459 | } | |
1460 | ||
cd4ed46f | 1461 | if (!ncolumns && (flags & FL_DF)) { |
edaf38cf KZ |
1462 | add_column(columns, ncolumns++, COL_SOURCE); |
1463 | add_column(columns, ncolumns++, COL_FSTYPE); | |
1464 | add_column(columns, ncolumns++, COL_SIZE); | |
1465 | add_column(columns, ncolumns++, COL_USED); | |
1466 | add_column(columns, ncolumns++, COL_AVAIL); | |
1467 | add_column(columns, ncolumns++, COL_USEPERC); | |
1468 | add_column(columns, ncolumns++, COL_TARGET); | |
eda399b9 DR |
1469 | } |
1470 | ||
32e5466a KZ |
1471 | /* default columns */ |
1472 | if (!ncolumns) { | |
1473 | if (flags & FL_POLL) | |
edaf38cf | 1474 | add_column(columns, ncolumns++, COL_ACTION); |
32e5466a | 1475 | |
edaf38cf KZ |
1476 | add_column(columns, ncolumns++, COL_TARGET); |
1477 | add_column(columns, ncolumns++, COL_SOURCE); | |
1478 | add_column(columns, ncolumns++, COL_FSTYPE); | |
1479 | add_column(columns, ncolumns++, COL_OPTIONS); | |
32e5466a KZ |
1480 | } |
1481 | ||
c57dca68 MB |
1482 | if (outarg && string_add_to_idarray(outarg, columns, ARRAY_SIZE(columns), |
1483 | &ncolumns, column_name_to_id) < 0) | |
1484 | return EXIT_FAILURE; | |
1485 | ||
8c5eba3e KZ |
1486 | if (!tabtype) |
1487 | tabtype = TABTYPE_KERNEL; | |
2f1ac44b | 1488 | |
f1622b57 KZ |
1489 | if ((flags & FL_POLL) && ntabfiles > 1) |
1490 | errx(EXIT_FAILURE, _("--poll accepts only one file, but more specified by --tab-file")); | |
b2214e1f | 1491 | |
9d67679b KZ |
1492 | if (optind < argc && (get_match(COL_SOURCE) || get_match(COL_TARGET))) |
1493 | errx(EXIT_FAILURE, _( | |
1494 | "options --target and --source can't be used together " | |
1495 | "with command line element that is not an option")); | |
1496 | ||
04fd7a9f | 1497 | if (optind < argc) |
cd492186 | 1498 | set_source_match(argv[optind++]); /* dev/tag/mountpoint/maj:min */ |
04fd7a9f | 1499 | if (optind < argc) |
9d67679b | 1500 | set_match(COL_TARGET, argv[optind++]); /* mountpoint */ |
04fd7a9f | 1501 | |
049caefd KZ |
1502 | if ((flags & FL_SUBMOUNTS) && is_listall_mode()) |
1503 | /* don't care about submounts if list all mounts */ | |
1504 | flags &= ~FL_SUBMOUNTS; | |
1505 | ||
31f67453 KZ |
1506 | if (!(flags & FL_SUBMOUNTS) && ((flags & FL_FIRSTONLY) |
1507 | || get_match(COL_TARGET) | |
1508 | || get_match(COL_SOURCE) | |
1509 | || get_match(COL_MAJMIN))) | |
85c9ca5a | 1510 | flags &= ~FL_TREE; |
fdedb45e | 1511 | |
ac808156 KZ |
1512 | if (!(flags & FL_NOSWAPMATCH) && |
1513 | !get_match(COL_TARGET) && get_match(COL_SOURCE)) { | |
1514 | /* | |
1515 | * Check if we can swap source and target, it's | |
1516 | * not possible if the source is LABEL=/UUID= | |
1517 | */ | |
1518 | const char *x = get_match(COL_SOURCE); | |
1519 | ||
090b5e84 KZ |
1520 | if (!strncmp(x, "LABEL=", 6) || !strncmp(x, "UUID=", 5) || |
1521 | !strncmp(x, "PARTLABEL=", 10) || !strncmp(x, "PARTUUID=", 9)) | |
ac808156 KZ |
1522 | flags |= FL_NOSWAPMATCH; |
1523 | } | |
1524 | ||
fdedb45e KZ |
1525 | /* |
1526 | * initialize libmount | |
1527 | */ | |
ac808156 | 1528 | mnt_init_debug(0); |
710ed55d | 1529 | scols_init_debug(0); |
ac808156 | 1530 | |
8c5eba3e | 1531 | tb = parse_tabfiles(tabfiles, ntabfiles, tabtype); |
04fd7a9f | 1532 | if (!tb) |
fdedb45e | 1533 | goto leave; |
04fd7a9f | 1534 | |
9c277ede KZ |
1535 | if (tabtype == TABTYPE_MTAB && tab_is_kernel(tb)) |
1536 | tabtype = TABTYPE_KERNEL; | |
1537 | ||
85c9ca5a KZ |
1538 | if ((flags & FL_TREE) && (ntabfiles > 1 || !tab_is_tree(tb))) |
1539 | flags &= ~FL_TREE; | |
2f1ac44b | 1540 | |
097e7f2f KZ |
1541 | if (!(flags & FL_NOCACHE)) { |
1542 | cache = mnt_new_cache(); | |
1543 | if (!cache) { | |
1544 | warn(_("failed to initialize libmount cache")); | |
1545 | goto leave; | |
1546 | } | |
1547 | mnt_table_set_cache(tb, cache); | |
fb329bbc ER |
1548 | |
1549 | if (tabtype != TABTYPE_KERNEL) | |
1550 | cache_set_targets(cache); | |
fdedb45e | 1551 | } |
04fd7a9f | 1552 | |
bebdda30 KZ |
1553 | if (flags & FL_UNIQ) |
1554 | mnt_table_uniq_fs(tb, MNT_UNIQ_KEEPTREE, uniq_fs_target_cmp); | |
4bfd4bff | 1555 | |
fdedb45e | 1556 | /* |
218a3a94 | 1557 | * initialize output formatting (libsmartcols.h) |
fdedb45e | 1558 | */ |
0925a9dd | 1559 | table = scols_new_table(); |
218a3a94 | 1560 | if (!table) { |
fdedb45e KZ |
1561 | warn(_("failed to initialize output table")); |
1562 | goto leave; | |
1563 | } | |
0925a9dd KZ |
1564 | scols_table_enable_raw(table, !!(flags & FL_RAW)); |
1565 | scols_table_enable_export(table, !!(flags & FL_EXPORT)); | |
1566 | scols_table_enable_ascii(table, !!(flags & FL_ASCII)); | |
1567 | scols_table_enable_noheadings(table, !!(flags & FL_NOHEADINGS)); | |
ac808156 | 1568 | |
fdedb45e | 1569 | for (i = 0; i < ncolumns; i++) { |
32e5466a KZ |
1570 | int fl = get_column_flags(i); |
1571 | int id = get_column_id(i); | |
1572 | ||
85c9ca5a | 1573 | if (!(flags & FL_TREE)) |
218a3a94 | 1574 | fl &= ~SCOLS_FL_TREE; |
04fd7a9f | 1575 | |
32e5466a | 1576 | if (!(flags & FL_POLL) && is_tabdiff_column(id)) { |
77a1c5f7 | 1577 | warnx(_("%s column is requested, but --poll " |
32e5466a KZ |
1578 | "is not enabled"), get_column_name(i)); |
1579 | goto leave; | |
1580 | } | |
218a3a94 | 1581 | if (!scols_table_new_column(table, get_column_name(i), |
fdedb45e KZ |
1582 | get_column_whint(i), fl)) { |
1583 | warn(_("failed to initialize output column")); | |
1584 | goto leave; | |
9d67679b | 1585 | } |
fdedb45e | 1586 | } |
9d67679b | 1587 | |
fdedb45e KZ |
1588 | /* |
1589 | * Fill in data to the output table | |
1590 | */ | |
275c9a48 | 1591 | if (flags & FL_POLL) { |
8c5eba3e | 1592 | /* poll mode (accept the first tabfile only) */ |
218a3a94 | 1593 | rc = poll_table(tb, tabfiles ? *tabfiles : _PATH_PROC_MOUNTINFO, timeout, table, direction); |
32e5466a | 1594 | |
85c9ca5a | 1595 | } else if ((flags & FL_TREE) && !(flags & FL_SUBMOUNTS)) { |
049caefd | 1596 | /* whole tree */ |
218a3a94 | 1597 | rc = create_treenode(table, tb, NULL, NULL); |
31f67453 | 1598 | } else { |
049caefd | 1599 | /* whole lits of sub-tree */ |
218a3a94 | 1600 | rc = add_matching_lines(tb, table, direction); |
fdedb45e | 1601 | |
3e373967 KZ |
1602 | if (rc != 0 |
1603 | && tabtype == TABTYPE_KERNEL | |
1604 | && (flags & FL_NOSWAPMATCH) | |
1605 | && get_match(COL_TARGET)) { | |
1606 | /* | |
1607 | * Found nothing, maybe the --target is regular file, | |
1608 | * try it again with extra functionality for target | |
1609 | * match | |
1610 | */ | |
48367e2d | 1611 | enable_extra_target_match(tb); |
218a3a94 | 1612 | rc = add_matching_lines(tb, table, direction); |
3e373967 KZ |
1613 | } |
1614 | } | |
1615 | ||
fdedb45e | 1616 | /* |
32e5466a | 1617 | * Print the output table for non-poll modes |
fdedb45e | 1618 | */ |
32e5466a | 1619 | if (!rc && !(flags & FL_POLL)) |
218a3a94 | 1620 | scols_print_table(table); |
fdedb45e | 1621 | leave: |
218a3a94 | 1622 | scols_unref_table(table); |
fdedb45e | 1623 | |
50fccba1 | 1624 | mnt_unref_table(tb); |
6195f9e6 | 1625 | mnt_unref_cache(cache); |
50fccba1 | 1626 | |
8c5eba3e | 1627 | free(tabfiles); |
e346233e KZ |
1628 | #ifdef HAVE_LIBUDEV |
1629 | udev_unref(udev); | |
1630 | #endif | |
049caefd | 1631 | return rc ? EXIT_FAILURE : EXIT_SUCCESS; |
04fd7a9f | 1632 | } |