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Commit | Line | Data |
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97073441 KZ |
1 | /* |
2 | * mount(8) -- mount a filesystem | |
3 | * | |
4 | * Copyright (C) 2011 Red Hat, Inc. All rights reserved. | |
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. | |
97073441 KZ |
20 | */ |
21 | ||
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <errno.h> | |
25 | #include <string.h> | |
26 | #include <getopt.h> | |
97073441 KZ |
27 | #include <unistd.h> |
28 | #include <sys/types.h> | |
dbae36fe | 29 | #include <sys/mman.h> |
ce433404 | 30 | #include <sys/stat.h> |
2e86597f | 31 | #include <stdarg.h> |
2a1f429a | 32 | #include <libmount.h> |
5f7c1890 | 33 | #include <ctype.h> |
2a1f429a | 34 | |
97073441 KZ |
35 | #include "nls.h" |
36 | #include "c.h" | |
6189ace3 | 37 | #include "env.h" |
dbae36fe | 38 | #include "strutils.h" |
efb8854f | 39 | #include "closestream.h" |
5ebbc386 | 40 | #include "canonicalize.h" |
97073441 | 41 | |
778ca2a0 RM |
42 | #define XALLOC_EXIT_CODE MNT_EX_SYSERR |
43 | #include "xalloc.h" | |
44 | ||
e3a7a5f8 | 45 | #define OPTUTILS_EXIT_CODE MNT_EX_USAGE |
38483b86 SK |
46 | #include "optutils.h" |
47 | ||
d946359a KZ |
48 | static int mk_exit_code(struct libmnt_context *cxt, int rc); |
49 | ||
6497f2d9 | 50 | static void suid_drop(struct libmnt_context *cxt) |
97073441 KZ |
51 | { |
52 | const uid_t ruid = getuid(); | |
53 | const uid_t euid = geteuid(); | |
54 | ||
6497f2d9 KZ |
55 | if (ruid != 0 && euid == 0) { |
56 | if (setgid(getgid()) < 0) | |
57 | err(MNT_EX_FAIL, _("setgid() failed")); | |
58 | ||
59 | if (setuid(getuid()) < 0) | |
60 | err(MNT_EX_FAIL, _("setuid() failed")); | |
97073441 | 61 | } |
6497f2d9 KZ |
62 | |
63 | /* be paranoid and check it, setuid(0) has to fail */ | |
64 | if (ruid != 0 && setuid(0) == 0) | |
65 | errx(MNT_EX_FAIL, _("drop permissions failed.")); | |
66 | ||
67 | mnt_context_force_unrestricted(cxt); | |
97073441 KZ |
68 | } |
69 | ||
68224d10 | 70 | static void __attribute__((__noreturn__)) mount_print_version(void) |
97073441 KZ |
71 | { |
72 | const char *ver = NULL; | |
ac8ecab4 | 73 | const char **features = NULL, **p; |
97073441 KZ |
74 | |
75 | mnt_get_library_version(&ver); | |
ac8ecab4 KZ |
76 | mnt_get_library_features(&features); |
77 | ||
78 | printf(_("%s from %s (libmount %s"), | |
79 | program_invocation_short_name, | |
80 | PACKAGE_STRING, | |
81 | ver); | |
82 | p = features; | |
83 | while (p && *p) { | |
84 | fputs(p == features ? ": " : ", ", stdout); | |
85 | fputs(*p++, stdout); | |
86 | } | |
87 | fputs(")\n", stdout); | |
e3a7a5f8 | 88 | exit(MNT_EX_SUCCESS); |
97073441 KZ |
89 | } |
90 | ||
7fc6d2b8 | 91 | static int table_parser_errcb(struct libmnt_table *tb __attribute__((__unused__)), |
9f7472b0 KZ |
92 | const char *filename, int line) |
93 | { | |
94 | if (filename) | |
b779c1ae | 95 | warnx(_("%s: parse error at line %d -- ignored"), filename, line); |
1cd9d0d7 | 96 | return 1; |
9f7472b0 KZ |
97 | } |
98 | ||
5f7c1890 KZ |
99 | /* |
100 | * Replace control chars with '?' to be compatible with coreutils. For more | |
101 | * robust solution use findmnt(1) where we use \x?? hex encoding. | |
102 | */ | |
103 | static void safe_fputs(const char *data) | |
104 | { | |
105 | const char *p; | |
106 | ||
107 | for (p = data; p && *p; p++) { | |
108 | if (iscntrl((unsigned char) *p)) | |
109 | fputc('?', stdout); | |
110 | else | |
111 | fputc(*p, stdout); | |
112 | } | |
113 | } | |
114 | ||
11754572 | 115 | static void print_all(struct libmnt_context *cxt, char *pattern, int show_label) |
97073441 | 116 | { |
68164f6c | 117 | struct libmnt_table *tb; |
a0c014dc | 118 | struct libmnt_iter *itr = NULL; |
68164f6c KZ |
119 | struct libmnt_fs *fs; |
120 | struct libmnt_cache *cache = NULL; | |
97073441 | 121 | |
11754572 | 122 | if (mnt_context_get_mtab(cxt, &tb)) |
e3a7a5f8 | 123 | err(MNT_EX_SYSERR, _("failed to read mtab")); |
97073441 KZ |
124 | |
125 | itr = mnt_new_iter(MNT_ITER_FORWARD); | |
11754572 | 126 | if (!itr) |
e3a7a5f8 | 127 | err(MNT_EX_SYSERR, _("failed to initialize libmount iterator")); |
97073441 KZ |
128 | if (show_label) |
129 | cache = mnt_new_cache(); | |
130 | ||
9f7472b0 | 131 | while (mnt_table_next_fs(tb, itr, &fs) == 0) { |
97073441 KZ |
132 | const char *type = mnt_fs_get_fstype(fs); |
133 | const char *src = mnt_fs_get_source(fs); | |
7cf389f7 | 134 | const char *optstr = mnt_fs_get_options(fs); |
aa397ce5 | 135 | char *xsrc = NULL; |
97073441 KZ |
136 | |
137 | if (type && pattern && !mnt_match_fstype(type, pattern)) | |
138 | continue; | |
139 | ||
8487dbee | 140 | if (!mnt_fs_is_pseudofs(fs) && !mnt_fs_is_netfs(fs)) |
aa397ce5 | 141 | xsrc = mnt_pretty_path(src, cache); |
5f7c1890 KZ |
142 | printf ("%s on ", xsrc ? xsrc : src); |
143 | safe_fputs(mnt_fs_get_target(fs)); | |
144 | ||
97073441 KZ |
145 | if (type) |
146 | printf (" type %s", type); | |
147 | if (optstr) | |
148 | printf (" (%s)", optstr); | |
149 | if (show_label && src) { | |
150 | char *lb = mnt_cache_find_tag_value(cache, src, "LABEL"); | |
151 | if (lb) | |
152 | printf (" [%s]", lb); | |
153 | } | |
154 | fputc('\n', stdout); | |
2576b4e7 | 155 | free(xsrc); |
97073441 | 156 | } |
11754572 | 157 | |
6195f9e6 | 158 | mnt_unref_cache(cache); |
b192b7b9 | 159 | mnt_free_iter(itr); |
97073441 KZ |
160 | } |
161 | ||
9f7472b0 KZ |
162 | /* |
163 | * mount -a [-F] | |
9f7472b0 | 164 | */ |
d2c97887 | 165 | static int mount_all(struct libmnt_context *cxt) |
a9ae3955 | 166 | { |
9f7472b0 KZ |
167 | struct libmnt_iter *itr; |
168 | struct libmnt_fs *fs; | |
e3a7a5f8 | 169 | int mntrc, ignored, rc = MNT_EX_SUCCESS; |
9f7472b0 | 170 | |
16b73aae KZ |
171 | int nsucc = 0, nerrs = 0; |
172 | ||
9f7472b0 KZ |
173 | itr = mnt_new_iter(MNT_ITER_FORWARD); |
174 | if (!itr) { | |
175 | warn(_("failed to initialize libmount iterator")); | |
e3a7a5f8 | 176 | return MNT_EX_SYSERR; |
9f7472b0 KZ |
177 | } |
178 | ||
179 | while (mnt_context_next_mount(cxt, itr, &fs, &mntrc, &ignored) == 0) { | |
180 | ||
181 | const char *tgt = mnt_fs_get_target(fs); | |
182 | ||
183 | if (ignored) { | |
184 | if (mnt_context_is_verbose(cxt)) | |
b3f7a0ec KZ |
185 | printf(ignored == 1 ? _("%-25s: ignored\n") : |
186 | _("%-25s: already mounted\n"), | |
9f7472b0 | 187 | tgt); |
d2c97887 | 188 | } else if (mnt_context_is_fork(cxt)) { |
d946359a KZ |
189 | if (mnt_context_is_verbose(cxt)) |
190 | printf("%-25s: mount successfully forked\n", tgt); | |
9f7472b0 | 191 | } else { |
e3a7a5f8 | 192 | if (mk_exit_code(cxt, mntrc) == MNT_EX_SUCCESS) { |
16b73aae | 193 | nsucc++; |
d946359a | 194 | |
e3a7a5f8 | 195 | /* Note that MNT_EX_SUCCESS return code does |
8ab82185 KZ |
196 | * not mean that FS has been really mounted |
197 | * (e.g. nofail option) */ | |
2bb3aa36 | 198 | if (mnt_context_get_status(cxt) |
8ab82185 | 199 | && mnt_context_is_verbose(cxt)) |
d946359a | 200 | printf("%-25s: successfully mounted\n", tgt); |
16b73aae KZ |
201 | } else |
202 | nerrs++; | |
9f7472b0 KZ |
203 | } |
204 | } | |
205 | ||
d2c97887 KZ |
206 | if (mnt_context_is_parent(cxt)) { |
207 | /* wait for mount --fork children */ | |
16b73aae KZ |
208 | int nchildren = 0; |
209 | ||
210 | nerrs = 0, nsucc = 0; | |
d2c97887 KZ |
211 | |
212 | rc = mnt_context_wait_for_children(cxt, &nchildren, &nerrs); | |
213 | if (!rc && nchildren) | |
16b73aae | 214 | nsucc = nchildren - nerrs; |
d2c97887 KZ |
215 | } |
216 | ||
16b73aae | 217 | if (nerrs == 0) |
e3a7a5f8 | 218 | rc = MNT_EX_SUCCESS; /* all success */ |
16b73aae | 219 | else if (nsucc == 0) |
e3a7a5f8 | 220 | rc = MNT_EX_FAIL; /* all failed */ |
16b73aae | 221 | else |
e3a7a5f8 | 222 | rc = MNT_EX_SOMEOK; /* some success, some failed */ |
16b73aae | 223 | |
25609ee1 | 224 | mnt_free_iter(itr); |
9f7472b0 | 225 | return rc; |
a9ae3955 KZ |
226 | } |
227 | ||
189a1bf3 KZ |
228 | |
229 | /* | |
230 | * mount -a -o remount | |
231 | */ | |
232 | static int remount_all(struct libmnt_context *cxt) | |
233 | { | |
234 | struct libmnt_iter *itr; | |
235 | struct libmnt_fs *fs; | |
236 | int mntrc, ignored, rc = MNT_EX_SUCCESS; | |
237 | ||
238 | int nsucc = 0, nerrs = 0; | |
239 | ||
240 | itr = mnt_new_iter(MNT_ITER_FORWARD); | |
241 | if (!itr) { | |
242 | warn(_("failed to initialize libmount iterator")); | |
243 | return MNT_EX_SYSERR; | |
244 | } | |
245 | ||
246 | while (mnt_context_next_remount(cxt, itr, &fs, &mntrc, &ignored) == 0) { | |
247 | ||
248 | const char *tgt = mnt_fs_get_target(fs); | |
249 | ||
250 | if (ignored) { | |
251 | if (mnt_context_is_verbose(cxt)) | |
252 | printf(_("%-25s: ignored\n"), tgt); | |
253 | } else { | |
254 | if (mk_exit_code(cxt, mntrc) == MNT_EX_SUCCESS) { | |
255 | nsucc++; | |
256 | ||
257 | /* Note that MNT_EX_SUCCESS return code does | |
258 | * not mean that FS has been really mounted | |
259 | * (e.g. nofail option) */ | |
260 | if (mnt_context_get_status(cxt) | |
261 | && mnt_context_is_verbose(cxt)) | |
262 | printf("%-25s: successfully remounted\n", tgt); | |
263 | } else | |
264 | nerrs++; | |
265 | } | |
266 | } | |
267 | ||
268 | if (nerrs == 0) | |
269 | rc = MNT_EX_SUCCESS; /* all success */ | |
270 | else if (nsucc == 0) | |
271 | rc = MNT_EX_FAIL; /* all failed */ | |
272 | else | |
273 | rc = MNT_EX_SOMEOK; /* some success, some failed */ | |
274 | ||
275 | mnt_free_iter(itr); | |
276 | return rc; | |
277 | } | |
278 | ||
84600ddc KZ |
279 | static void success_message(struct libmnt_context *cxt) |
280 | { | |
281 | unsigned long mflags = 0; | |
f5ae1d70 | 282 | const char *tgt, *src, *pr = program_invocation_short_name; |
84600ddc KZ |
283 | |
284 | if (mnt_context_helper_executed(cxt) | |
285 | || mnt_context_get_status(cxt) != 1) | |
286 | return; | |
287 | ||
288 | mnt_context_get_mflags(cxt, &mflags); | |
289 | tgt = mnt_context_get_target(cxt); | |
290 | src = mnt_context_get_source(cxt); | |
291 | ||
292 | if (mflags & MS_MOVE) | |
f5ae1d70 | 293 | printf(_("%s: %s moved to %s.\n"), pr, src, tgt); |
84600ddc | 294 | else if (mflags & MS_BIND) |
9b4257c8 | 295 | printf(_("%s: %s bound on %s.\n"), pr, src, tgt); |
b4ec4573 KZ |
296 | else if (mflags & MS_PROPAGATION) { |
297 | if (src && strcmp(src, "none") != 0 && tgt) | |
298 | printf(_("%s: %s mounted on %s.\n"), pr, src, tgt); | |
299 | ||
f5ae1d70 | 300 | printf(_("%s: %s propagation flags changed.\n"), pr, tgt); |
b4ec4573 | 301 | } else |
f5ae1d70 | 302 | printf(_("%s: %s mounted on %s.\n"), pr, src, tgt); |
84600ddc KZ |
303 | } |
304 | ||
4e45dfb9 KZ |
305 | #if defined(HAVE_LIBSELINUX) && defined(HAVE_SECURITY_GET_INITIAL_CONTEXT) |
306 | #include <selinux/selinux.h> | |
307 | #include <selinux/context.h> | |
308 | ||
309 | static void selinux_warning(struct libmnt_context *cxt, const char *tgt) | |
310 | { | |
311 | ||
312 | if (tgt && mnt_context_is_verbose(cxt) && is_selinux_enabled() > 0) { | |
313 | security_context_t raw = NULL, def = NULL; | |
314 | ||
315 | if (getfilecon(tgt, &raw) > 0 | |
316 | && security_get_initial_context("file", &def) == 0) { | |
317 | ||
318 | if (!selinux_file_context_cmp(raw, def)) | |
319 | printf(_( | |
320 | "mount: %s does not contain SELinux labels.\n" | |
321 | " You just mounted an file system that supports labels which does not\n" | |
322 | " contain labels, onto an SELinux box. It is likely that confined\n" | |
323 | " applications will generate AVC messages and not be allowed access to\n" | |
324 | " this file system. For more details see restorecon(8) and mount(8).\n"), | |
325 | tgt); | |
326 | } | |
327 | freecon(raw); | |
328 | freecon(def); | |
329 | } | |
330 | } | |
331 | #else | |
b8c0f4fb | 332 | # define selinux_warning(_x, _y) |
4e45dfb9 KZ |
333 | #endif |
334 | ||
fcc0413a | 335 | /* |
e1706a67 | 336 | * Returns exit status (MNT_EX_*) and/or prints error message. |
ce433404 KZ |
337 | */ |
338 | static int mk_exit_code(struct libmnt_context *cxt, int rc) | |
339 | { | |
e1706a67 KZ |
340 | const char *tgt; |
341 | char buf[BUFSIZ] = { 0 }; | |
6dede2f2 | 342 | |
e1706a67 KZ |
343 | rc = mnt_context_get_excode(cxt, rc, buf, sizeof(buf)); |
344 | tgt = mnt_context_get_target(cxt); | |
ce433404 | 345 | |
e1706a67 KZ |
346 | if (*buf) { |
347 | const char *spec = tgt; | |
348 | if (!spec) | |
349 | spec = mnt_context_get_source(cxt); | |
350 | if (!spec) | |
351 | spec = "???"; | |
14056588 | 352 | warnx("%s: %s.", spec, buf); |
ce433404 | 353 | } |
ce433404 | 354 | |
0361cb6f KZ |
355 | if (rc == MNT_EX_SUCCESS && mnt_context_get_status(cxt) == 1) { |
356 | selinux_warning(cxt, tgt); | |
ce433404 | 357 | } |
e1706a67 | 358 | return rc; |
ce433404 KZ |
359 | } |
360 | ||
64b6bc4f KZ |
361 | static struct libmnt_table *append_fstab(struct libmnt_context *cxt, |
362 | struct libmnt_table *fstab, | |
363 | const char *path) | |
364 | { | |
365 | ||
366 | if (!fstab) { | |
367 | fstab = mnt_new_table(); | |
368 | if (!fstab) | |
e3a7a5f8 | 369 | err(MNT_EX_SYSERR, _("failed to initialize libmount table")); |
64b6bc4f KZ |
370 | |
371 | mnt_table_set_parser_errcb(fstab, table_parser_errcb); | |
372 | mnt_context_set_fstab(cxt, fstab); | |
50fccba1 KZ |
373 | |
374 | mnt_unref_table(fstab); /* reference is handled by @cxt now */ | |
64b6bc4f KZ |
375 | } |
376 | ||
377 | if (mnt_table_parse_fstab(fstab, path)) | |
e3a7a5f8 | 378 | errx(MNT_EX_USAGE,_("%s: failed to parse"), path); |
64b6bc4f KZ |
379 | |
380 | return fstab; | |
381 | } | |
382 | ||
5ebbc386 KZ |
383 | /* |
384 | * Check source and target paths -- non-root user should not be able to | |
385 | * resolve paths which are unreadable for him. | |
386 | */ | |
387 | static void sanitize_paths(struct libmnt_context *cxt) | |
388 | { | |
389 | const char *p; | |
390 | struct libmnt_fs *fs = mnt_context_get_fs(cxt); | |
391 | ||
392 | if (!fs) | |
393 | return; | |
394 | ||
395 | p = mnt_fs_get_target(fs); | |
396 | if (p) { | |
397 | char *np = canonicalize_path_restricted(p); | |
398 | if (!np) | |
e3a7a5f8 | 399 | err(MNT_EX_USAGE, "%s", p); |
5ebbc386 KZ |
400 | mnt_fs_set_target(fs, np); |
401 | free(np); | |
402 | } | |
403 | ||
404 | p = mnt_fs_get_srcpath(fs); | |
405 | if (p) { | |
406 | char *np = canonicalize_path_restricted(p); | |
407 | if (!np) | |
e3a7a5f8 | 408 | err(MNT_EX_USAGE, "%s", p); |
5ebbc386 KZ |
409 | mnt_fs_set_source(fs, np); |
410 | free(np); | |
411 | } | |
412 | } | |
413 | ||
be6904b9 KZ |
414 | static void append_option(struct libmnt_context *cxt, const char *opt) |
415 | { | |
8225bb78 | 416 | if (opt && (*opt == '=' || *opt == '\'' || *opt == '\"' || isblank(*opt))) |
e3a7a5f8 | 417 | errx(MNT_EX_USAGE, _("unsupported option format: %s"), opt); |
be6904b9 | 418 | if (mnt_context_append_options(cxt, opt)) |
e3a7a5f8 | 419 | err(MNT_EX_SYSERR, _("failed to append option '%s'"), opt); |
be6904b9 KZ |
420 | } |
421 | ||
ba986e81 KZ |
422 | static int has_remount_flag(struct libmnt_context *cxt) |
423 | { | |
424 | unsigned long mflags = 0; | |
425 | ||
426 | if (mnt_context_get_mflags(cxt, &mflags)) | |
427 | return 0; | |
428 | ||
429 | return mflags & MS_REMOUNT; | |
430 | } | |
431 | ||
6e1eda6f | 432 | static void __attribute__((__noreturn__)) usage(void) |
97073441 | 433 | { |
6e1eda6f | 434 | FILE *out = stdout; |
e4c92d06 KZ |
435 | fputs(USAGE_HEADER, out); |
436 | fprintf(out, _( | |
97073441 KZ |
437 | " %1$s [-lhV]\n" |
438 | " %1$s -a [options]\n" | |
aedeaa40 | 439 | " %1$s [options] [--source] <source> | [--target] <directory>\n" |
97073441 KZ |
440 | " %1$s [options] <source> <directory>\n" |
441 | " %1$s <operation> <mountpoint> [<target>]\n"), | |
442 | program_invocation_short_name); | |
443 | ||
451dbcfa BS |
444 | fputs(USAGE_SEPARATOR, out); |
445 | fputs(_("Mount a filesystem.\n"), out); | |
446 | ||
e4c92d06 | 447 | fputs(USAGE_OPTIONS, out); |
97073441 | 448 | fprintf(out, _( |
97073441 | 449 | " -a, --all mount all filesystems mentioned in fstab\n" |
97073441 | 450 | " -c, --no-canonicalize don't canonicalize paths\n" |
eaca47f7 | 451 | " -f, --fake dry run; skip the mount(2) syscall\n" |
64b6bc4f KZ |
452 | " -F, --fork fork off for each device (use with -a)\n" |
453 | " -T, --fstab <path> alternative file to /etc/fstab\n")); | |
eaca47f7 | 454 | fprintf(out, _( |
89de71b3 BS |
455 | " -i, --internal-only don't call the mount.<type> helpers\n")); |
456 | fprintf(out, _( | |
457 | " -l, --show-labels show also filesystem labels\n")); | |
458 | fprintf(out, _( | |
eaca47f7 BS |
459 | " -n, --no-mtab don't write to /etc/mtab\n")); |
460 | fprintf(out, _( | |
7238285b VD |
461 | " --options-mode <mode>\n" |
462 | " what to do with options loaded from fstab\n" | |
463 | " --options-source <source>\n" | |
464 | " mount options source\n" | |
465 | " --options-source-force\n" | |
466 | " force use of options from fstab/mtab\n")); | |
467 | fprintf(out, _( | |
eaca47f7 BS |
468 | " -o, --options <list> comma-separated list of mount options\n" |
469 | " -O, --test-opts <list> limit the set of filesystems (use with -a)\n" | |
470 | " -r, --read-only mount the filesystem read-only (same as -o ro)\n" | |
471 | " -t, --types <list> limit the set of filesystem types\n")); | |
472 | fprintf(out, _( | |
aedeaa40 KZ |
473 | " --source <src> explicitly specifies source (path, label, uuid)\n" |
474 | " --target <target> explicitly specifies mountpoint\n")); | |
475 | fprintf(out, _( | |
b231e0f7 KZ |
476 | " --target-prefix <path>\n" |
477 | " specifies path use for all mountpoints\n")); | |
478 | fprintf(out, _( | |
89de71b3 BS |
479 | " -v, --verbose say what is being done\n")); |
480 | fprintf(out, _( | |
6d402bbe | 481 | " -w, --rw, --read-write mount the filesystem read-write (default)\n")); |
d45e8ef9 VD |
482 | fprintf(out, _( |
483 | " -N, --namespace <ns> perform mount in another namespace\n")); | |
97073441 | 484 | |
e4c92d06 | 485 | fputs(USAGE_SEPARATOR, out); |
f45f3ec3 | 486 | printf(USAGE_HELP_OPTIONS(25)); |
e4c92d06 | 487 | |
eaca47f7 | 488 | fprintf(out, _( |
97073441 KZ |
489 | "\nSource:\n" |
490 | " -L, --label <label> synonym for LABEL=<label>\n" | |
491 | " -U, --uuid <uuid> synonym for UUID=<uuid>\n" | |
492 | " LABEL=<label> specifies device by filesystem label\n" | |
eb0eb262 KZ |
493 | " UUID=<uuid> specifies device by filesystem UUID\n" |
494 | " PARTLABEL=<label> specifies device by partition label\n" | |
495 | " PARTUUID=<uuid> specifies device by partition UUID\n")); | |
496 | ||
eaca47f7 | 497 | fprintf(out, _( |
97073441 KZ |
498 | " <device> specifies device by path\n" |
499 | " <directory> mountpoint for bind mounts (see --bind/rbind)\n" | |
eaca47f7 | 500 | " <file> regular file for loopdev setup\n")); |
97073441 | 501 | |
eaca47f7 | 502 | fprintf(out, _( |
97073441 KZ |
503 | "\nOperations:\n" |
504 | " -B, --bind mount a subtree somewhere else (same as -o bind)\n" | |
505 | " -M, --move move a subtree to some other place\n" | |
eaca47f7 BS |
506 | " -R, --rbind mount a subtree and all submounts somewhere else\n")); |
507 | fprintf(out, _( | |
97073441 KZ |
508 | " --make-shared mark a subtree as shared\n" |
509 | " --make-slave mark a subtree as slave\n" | |
510 | " --make-private mark a subtree as private\n" | |
eaca47f7 BS |
511 | " --make-unbindable mark a subtree as unbindable\n")); |
512 | fprintf(out, _( | |
97073441 KZ |
513 | " --make-rshared recursively mark a whole subtree as shared\n" |
514 | " --make-rslave recursively mark a whole subtree as slave\n" | |
515 | " --make-rprivate recursively mark a whole subtree as private\n" | |
eaca47f7 | 516 | " --make-runbindable recursively mark a whole subtree as unbindable\n")); |
97073441 | 517 | |
f45f3ec3 | 518 | printf(USAGE_MAN_TAIL("mount(8)")); |
97073441 | 519 | |
6e1eda6f | 520 | exit(MNT_EX_SUCCESS); |
97073441 KZ |
521 | } |
522 | ||
db9185bf VD |
523 | struct flag_str { |
524 | int value; | |
525 | char *str; | |
526 | }; | |
527 | ||
9730aa40 | 528 | static int omode2mask(const char *str) |
db9185bf | 529 | { |
9730aa40 VD |
530 | size_t i; |
531 | ||
532 | static const struct flag_str flags[] = { | |
533 | { MNT_OMODE_IGNORE, "ignore" }, | |
534 | { MNT_OMODE_APPEND, "append" }, | |
535 | { MNT_OMODE_PREPEND, "prepend" }, | |
536 | { MNT_OMODE_REPLACE, "replace" }, | |
537 | }; | |
538 | ||
539 | for (i = 0; i < ARRAY_SIZE(flags); i++) { | |
540 | if (!strcmp(str, flags[i].str)) | |
541 | return flags[i].value; | |
db9185bf VD |
542 | } |
543 | return -EINVAL; | |
544 | } | |
545 | ||
9730aa40 | 546 | static long osrc2mask(const char *str, size_t len) |
db9185bf | 547 | { |
9730aa40 VD |
548 | size_t i; |
549 | ||
550 | static const struct flag_str flags[] = { | |
551 | { MNT_OMODE_FSTAB, "fstab" }, | |
552 | { MNT_OMODE_MTAB, "mtab" }, | |
553 | { MNT_OMODE_NOTAB, "disable" }, | |
554 | }; | |
555 | ||
556 | for (i = 0; i < ARRAY_SIZE(flags); i++) { | |
557 | if (!strncmp(str, flags[i].str, len) && !flags[i].str[len]) | |
558 | return flags[i].value; | |
db9185bf | 559 | } |
9730aa40 | 560 | return -EINVAL; |
db9185bf VD |
561 | } |
562 | ||
d59766a6 VD |
563 | static pid_t parse_pid(const char *str) |
564 | { | |
565 | char *end; | |
566 | pid_t ret; | |
567 | ||
568 | errno = 0; | |
569 | ret = strtoul(str, &end, 10); | |
570 | ||
571 | if (ret < 0 || errno || end == str || (end && *end)) | |
572 | return 0; | |
573 | return ret; | |
574 | } | |
575 | ||
97073441 KZ |
576 | int main(int argc, char **argv) |
577 | { | |
e3a7a5f8 | 578 | int c, rc = MNT_EX_SUCCESS, all = 0, show_labels = 0; |
68164f6c | 579 | struct libmnt_context *cxt; |
64b6bc4f | 580 | struct libmnt_table *fstab = NULL; |
aedeaa40 | 581 | char *srcbuf = NULL; |
97073441 | 582 | char *types = NULL; |
6691d537 | 583 | int oper = 0, is_move = 0; |
be6904b9 | 584 | int propa = 0; |
db9185bf | 585 | int optmode = 0, optmode_mode = 0, optmode_src = 0; |
97073441 | 586 | |
2492f713 KZ |
587 | enum { |
588 | MOUNT_OPT_SHARED = CHAR_MAX + 1, | |
589 | MOUNT_OPT_SLAVE, | |
590 | MOUNT_OPT_PRIVATE, | |
591 | MOUNT_OPT_UNBINDABLE, | |
592 | MOUNT_OPT_RSHARED, | |
593 | MOUNT_OPT_RSLAVE, | |
594 | MOUNT_OPT_RPRIVATE, | |
aedeaa40 KZ |
595 | MOUNT_OPT_RUNBINDABLE, |
596 | MOUNT_OPT_TARGET, | |
b231e0f7 | 597 | MOUNT_OPT_TARGET_PREFIX, |
db9185bf VD |
598 | MOUNT_OPT_SOURCE, |
599 | MOUNT_OPT_OPTMODE, | |
600 | MOUNT_OPT_OPTSRC, | |
601 | MOUNT_OPT_OPTSRC_FORCE | |
2492f713 KZ |
602 | }; |
603 | ||
6c7d5ae9 | 604 | static const struct option longopts[] = { |
87918040 SK |
605 | { "all", no_argument, NULL, 'a' }, |
606 | { "fake", no_argument, NULL, 'f' }, | |
607 | { "fstab", required_argument, NULL, 'T' }, | |
608 | { "fork", no_argument, NULL, 'F' }, | |
609 | { "help", no_argument, NULL, 'h' }, | |
610 | { "no-mtab", no_argument, NULL, 'n' }, | |
611 | { "read-only", no_argument, NULL, 'r' }, | |
612 | { "ro", no_argument, NULL, 'r' }, | |
613 | { "verbose", no_argument, NULL, 'v' }, | |
614 | { "version", no_argument, NULL, 'V' }, | |
615 | { "read-write", no_argument, NULL, 'w' }, | |
616 | { "rw", no_argument, NULL, 'w' }, | |
617 | { "options", required_argument, NULL, 'o' }, | |
618 | { "test-opts", required_argument, NULL, 'O' }, | |
619 | { "types", required_argument, NULL, 't' }, | |
620 | { "uuid", required_argument, NULL, 'U' }, | |
621 | { "label", required_argument, NULL, 'L' }, | |
622 | { "bind", no_argument, NULL, 'B' }, | |
623 | { "move", no_argument, NULL, 'M' }, | |
624 | { "rbind", no_argument, NULL, 'R' }, | |
625 | { "make-shared", no_argument, NULL, MOUNT_OPT_SHARED }, | |
626 | { "make-slave", no_argument, NULL, MOUNT_OPT_SLAVE }, | |
627 | { "make-private", no_argument, NULL, MOUNT_OPT_PRIVATE }, | |
628 | { "make-unbindable", no_argument, NULL, MOUNT_OPT_UNBINDABLE }, | |
629 | { "make-rshared", no_argument, NULL, MOUNT_OPT_RSHARED }, | |
630 | { "make-rslave", no_argument, NULL, MOUNT_OPT_RSLAVE }, | |
631 | { "make-rprivate", no_argument, NULL, MOUNT_OPT_RPRIVATE }, | |
632 | { "make-runbindable", no_argument, NULL, MOUNT_OPT_RUNBINDABLE }, | |
633 | { "no-canonicalize", no_argument, NULL, 'c' }, | |
634 | { "internal-only", no_argument, NULL, 'i' }, | |
635 | { "show-labels", no_argument, NULL, 'l' }, | |
636 | { "target", required_argument, NULL, MOUNT_OPT_TARGET }, | |
b231e0f7 | 637 | { "target-prefix", required_argument, NULL, MOUNT_OPT_TARGET_PREFIX }, |
87918040 | 638 | { "source", required_argument, NULL, MOUNT_OPT_SOURCE }, |
db9185bf VD |
639 | { "options-mode", required_argument, NULL, MOUNT_OPT_OPTMODE }, |
640 | { "options-source", required_argument, NULL, MOUNT_OPT_OPTSRC }, | |
641 | { "options-source-force", no_argument, NULL, MOUNT_OPT_OPTSRC_FORCE}, | |
21edc0f7 | 642 | { "namespace", required_argument, NULL, 'N' }, |
87918040 | 643 | { NULL, 0, NULL, 0 } |
97073441 KZ |
644 | }; |
645 | ||
a7349ee3 | 646 | static const ul_excl_t excl[] = { /* rows and cols in ASCII order */ |
be6904b9 | 647 | { 'B','M','R' }, /* bind,move,rbind */ |
51a37c19 KZ |
648 | { 'L','U', MOUNT_OPT_SOURCE }, /* label,uuid,source */ |
649 | { 0 } | |
650 | }; | |
651 | int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT; | |
652 | ||
6189ace3 | 653 | sanitize_env(); |
97073441 KZ |
654 | setlocale(LC_ALL, ""); |
655 | bindtextdomain(PACKAGE, LOCALEDIR); | |
656 | textdomain(PACKAGE); | |
2c308875 | 657 | close_stdout_atexit(); |
97073441 | 658 | |
0b2b32e8 RM |
659 | strutils_set_exitcode(MNT_EX_USAGE); |
660 | ||
97073441 KZ |
661 | mnt_init_debug(0); |
662 | cxt = mnt_new_context(); | |
663 | if (!cxt) | |
e3a7a5f8 | 664 | err(MNT_EX_SYSERR, _("libmount context allocation failed")); |
97073441 | 665 | |
9f7472b0 KZ |
666 | mnt_context_set_tables_errcb(cxt, table_parser_errcb); |
667 | ||
21edc0f7 | 668 | while ((c = getopt_long(argc, argv, "aBcfFhilL:Mno:O:rRsU:vVwt:T:N:", |
97073441 KZ |
669 | longopts, NULL)) != -1) { |
670 | ||
671 | /* only few options are allowed for non-root users */ | |
aedeaa40 | 672 | if (mnt_context_is_restricted(cxt) && |
961d69f7 | 673 | !strchr("hlLUVvrist", c) && |
aedeaa40 KZ |
674 | c != MOUNT_OPT_TARGET && |
675 | c != MOUNT_OPT_SOURCE) | |
6497f2d9 | 676 | suid_drop(cxt); |
97073441 | 677 | |
51a37c19 KZ |
678 | err_exclusive_options(c, longopts, excl, excl_st); |
679 | ||
97073441 KZ |
680 | switch(c) { |
681 | case 'a': | |
682 | all = 1; | |
97073441 KZ |
683 | break; |
684 | case 'c': | |
685 | mnt_context_disable_canonicalize(cxt, TRUE); | |
686 | break; | |
687 | case 'f': | |
688 | mnt_context_enable_fake(cxt, TRUE); | |
689 | break; | |
690 | case 'F': | |
d2c97887 | 691 | mnt_context_enable_fork(cxt, TRUE); |
97073441 | 692 | break; |
97073441 KZ |
693 | case 'i': |
694 | mnt_context_disable_helpers(cxt, TRUE); | |
695 | break; | |
696 | case 'n': | |
697 | mnt_context_disable_mtab(cxt, TRUE); | |
698 | break; | |
699 | case 'r': | |
be6904b9 | 700 | append_option(cxt, "ro"); |
6dede2f2 | 701 | mnt_context_enable_rwonly_mount(cxt, FALSE); |
97073441 KZ |
702 | break; |
703 | case 'v': | |
704 | mnt_context_enable_verbose(cxt, TRUE); | |
705 | break; | |
97073441 | 706 | case 'w': |
be6904b9 | 707 | append_option(cxt, "rw"); |
6dede2f2 | 708 | mnt_context_enable_rwonly_mount(cxt, TRUE); |
97073441 KZ |
709 | break; |
710 | case 'o': | |
be6904b9 | 711 | append_option(cxt, optarg); |
97073441 KZ |
712 | break; |
713 | case 'O': | |
714 | if (mnt_context_set_options_pattern(cxt, optarg)) | |
e3a7a5f8 | 715 | err(MNT_EX_SYSERR, _("failed to set options pattern")); |
97073441 KZ |
716 | break; |
717 | case 'L': | |
aedeaa40 KZ |
718 | xasprintf(&srcbuf, "LABEL=\"%s\"", optarg); |
719 | mnt_context_disable_swapmatch(cxt, 1); | |
720 | mnt_context_set_source(cxt, srcbuf); | |
721 | free(srcbuf); | |
722 | break; | |
97073441 | 723 | case 'U': |
aedeaa40 KZ |
724 | xasprintf(&srcbuf, "UUID=\"%s\"", optarg); |
725 | mnt_context_disable_swapmatch(cxt, 1); | |
726 | mnt_context_set_source(cxt, srcbuf); | |
727 | free(srcbuf); | |
97073441 KZ |
728 | break; |
729 | case 'l': | |
730 | show_labels = 1; | |
731 | break; | |
732 | case 't': | |
733 | types = optarg; | |
734 | break; | |
64b6bc4f KZ |
735 | case 'T': |
736 | fstab = append_fstab(cxt, fstab, optarg); | |
737 | break; | |
97073441 KZ |
738 | case 's': |
739 | mnt_context_enable_sloppy(cxt, TRUE); | |
740 | break; | |
741 | case 'B': | |
4ebea84b KZ |
742 | oper = 1; |
743 | append_option(cxt, "bind"); | |
97073441 KZ |
744 | break; |
745 | case 'M': | |
4ebea84b | 746 | oper = 1; |
6691d537 | 747 | is_move = 1; |
97073441 KZ |
748 | break; |
749 | case 'R': | |
4ebea84b KZ |
750 | oper = 1; |
751 | append_option(cxt, "rbind"); | |
97073441 | 752 | break; |
21edc0f7 | 753 | case 'N': |
d59766a6 VD |
754 | { |
755 | char path[PATH_MAX]; | |
756 | pid_t pid = parse_pid(optarg); | |
757 | ||
758 | if (pid) | |
759 | snprintf(path, sizeof(path), "/proc/%i/ns/mnt", pid); | |
760 | ||
761 | if (mnt_context_set_target_ns(cxt, pid ? path : optarg)) | |
762 | err(MNT_EX_SYSERR, _("failed to set target namespace to %s"), pid ? path : optarg); | |
21edc0f7 | 763 | break; |
d59766a6 | 764 | } |
2492f713 | 765 | case MOUNT_OPT_SHARED: |
be6904b9 KZ |
766 | append_option(cxt, "shared"); |
767 | propa = 1; | |
97073441 | 768 | break; |
2492f713 | 769 | case MOUNT_OPT_SLAVE: |
be6904b9 KZ |
770 | append_option(cxt, "slave"); |
771 | propa = 1; | |
97073441 | 772 | break; |
2492f713 | 773 | case MOUNT_OPT_PRIVATE: |
be6904b9 KZ |
774 | append_option(cxt, "private"); |
775 | propa = 1; | |
97073441 | 776 | break; |
2492f713 | 777 | case MOUNT_OPT_UNBINDABLE: |
be6904b9 KZ |
778 | append_option(cxt, "unbindable"); |
779 | propa = 1; | |
97073441 | 780 | break; |
2492f713 | 781 | case MOUNT_OPT_RSHARED: |
be6904b9 KZ |
782 | append_option(cxt, "rshared"); |
783 | propa = 1; | |
97073441 | 784 | break; |
2492f713 | 785 | case MOUNT_OPT_RSLAVE: |
be6904b9 KZ |
786 | append_option(cxt, "rslave"); |
787 | propa = 1; | |
97073441 | 788 | break; |
2492f713 | 789 | case MOUNT_OPT_RPRIVATE: |
be6904b9 KZ |
790 | append_option(cxt, "rprivate"); |
791 | propa = 1; | |
97073441 | 792 | break; |
2492f713 | 793 | case MOUNT_OPT_RUNBINDABLE: |
be6904b9 KZ |
794 | append_option(cxt, "runbindable"); |
795 | propa = 1; | |
97073441 | 796 | break; |
aedeaa40 KZ |
797 | case MOUNT_OPT_TARGET: |
798 | mnt_context_disable_swapmatch(cxt, 1); | |
799 | mnt_context_set_target(cxt, optarg); | |
800 | break; | |
b231e0f7 KZ |
801 | case MOUNT_OPT_TARGET_PREFIX: |
802 | mnt_context_set_target_prefix(cxt, optarg); | |
803 | break; | |
aedeaa40 | 804 | case MOUNT_OPT_SOURCE: |
aedeaa40 KZ |
805 | mnt_context_disable_swapmatch(cxt, 1); |
806 | mnt_context_set_source(cxt, optarg); | |
807 | break; | |
db9185bf | 808 | case MOUNT_OPT_OPTMODE: |
9730aa40 | 809 | optmode_mode = omode2mask(optarg); |
db9185bf VD |
810 | if (optmode_mode == -EINVAL) { |
811 | warnx(_("bad usage")); | |
812 | errtryhelp(MNT_EX_USAGE); | |
813 | } | |
814 | break; | |
815 | case MOUNT_OPT_OPTSRC: | |
9730aa40 VD |
816 | { |
817 | unsigned long tmp = 0; | |
818 | if (string_to_bitmask(optarg, &tmp, osrc2mask)) { | |
db9185bf VD |
819 | warnx(_("bad usage")); |
820 | errtryhelp(MNT_EX_USAGE); | |
821 | } | |
9730aa40 | 822 | optmode_src = tmp; |
db9185bf | 823 | break; |
9730aa40 | 824 | } |
db9185bf VD |
825 | case MOUNT_OPT_OPTSRC_FORCE: |
826 | optmode |= MNT_OMODE_FORCE; | |
827 | break; | |
2c308875 KZ |
828 | |
829 | case 'h': | |
830 | mnt_free_context(cxt); | |
831 | usage(); | |
832 | case 'V': | |
833 | mnt_free_context(cxt); | |
834 | mount_print_version(); | |
97073441 | 835 | default: |
e3a7a5f8 | 836 | errtryhelp(MNT_EX_USAGE); |
97073441 KZ |
837 | } |
838 | } | |
839 | ||
840 | argc -= optind; | |
841 | argv += optind; | |
842 | ||
db9185bf VD |
843 | optmode |= optmode_mode | optmode_src; |
844 | if (optmode) { | |
845 | if (!optmode_mode) | |
846 | optmode |= MNT_OMODE_PREPEND; | |
847 | if (!optmode_src) | |
848 | optmode |= MNT_OMODE_FSTAB | MNT_OMODE_MTAB; | |
849 | mnt_context_set_optsmode(cxt, optmode); | |
850 | } | |
851 | ||
59414c6b KZ |
852 | if (fstab && !mnt_context_is_nocanonicalize(cxt)) { |
853 | /* | |
854 | * We have external (context independent) fstab instance, let's | |
855 | * make a connection between the fstab and the canonicalization | |
856 | * cache. | |
857 | */ | |
6195f9e6 | 858 | mnt_table_set_cache(fstab, mnt_context_get_cache(cxt)); |
59414c6b KZ |
859 | } |
860 | ||
aedeaa40 KZ |
861 | if (!mnt_context_get_source(cxt) && |
862 | !mnt_context_get_target(cxt) && | |
863 | !argc && | |
864 | !all) { | |
6e1eda6f RM |
865 | if (oper || mnt_context_get_options(cxt)) { |
866 | warnx(_("bad usage")); | |
867 | errtryhelp(MNT_EX_USAGE); | |
868 | } | |
11754572 | 869 | print_all(cxt, types, show_labels); |
97073441 KZ |
870 | goto done; |
871 | } | |
872 | ||
1707b9b1 RT |
873 | /* Non-root users are allowed to use -t to print_all(), |
874 | but not to mount */ | |
875 | if (mnt_context_is_restricted(cxt) && types) | |
6497f2d9 | 876 | suid_drop(cxt); |
1707b9b1 | 877 | |
6e1eda6f RM |
878 | if (oper && (types || all || mnt_context_get_source(cxt))) { |
879 | warnx(_("bad usage")); | |
880 | errtryhelp(MNT_EX_USAGE); | |
881 | } | |
97073441 | 882 | |
9f7472b0 KZ |
883 | if (types && (all || strchr(types, ',') || |
884 | strncmp(types, "no", 2) == 0)) | |
97073441 KZ |
885 | mnt_context_set_fstype_pattern(cxt, types); |
886 | else if (types) | |
887 | mnt_context_set_fstype(cxt, types); | |
888 | ||
a9ae3955 KZ |
889 | if (all) { |
890 | /* | |
891 | * A) Mount all | |
892 | */ | |
189a1bf3 KZ |
893 | if (has_remount_flag(cxt)) |
894 | rc = remount_all(cxt); | |
895 | else | |
896 | rc = mount_all(cxt); | |
11754572 | 897 | goto done; |
a9ae3955 | 898 | |
aedeaa40 KZ |
899 | } else if (argc == 0 && (mnt_context_get_source(cxt) || |
900 | mnt_context_get_target(cxt))) { | |
a9ae3955 | 901 | /* |
aedeaa40 | 902 | * B) mount -L|-U|--source|--target |
6751f062 KZ |
903 | * |
904 | * non-root may specify source *or* target, but not both | |
a9ae3955 | 905 | */ |
aedeaa40 KZ |
906 | if (mnt_context_is_restricted(cxt) && |
907 | mnt_context_get_source(cxt) && | |
908 | mnt_context_get_target(cxt)) | |
6497f2d9 | 909 | suid_drop(cxt); |
97073441 | 910 | |
6751f062 KZ |
911 | } else if (argc == 1 && (!mnt_context_get_source(cxt) || |
912 | !mnt_context_get_target(cxt))) { | |
a9ae3955 | 913 | /* |
aedeaa40 | 914 | * C) mount [-L|-U|--source] <target> |
6751f062 | 915 | * mount [--target <dir>] <source> |
a9ae3955 | 916 | * mount <source|target> |
aedeaa40 KZ |
917 | * |
918 | * non-root may specify source *or* target, but not both | |
6751f062 KZ |
919 | * |
920 | * It does not matter for libmount if we set source or target | |
921 | * here (the library is able to swap it), but it matters for | |
922 | * sanitize_paths(). | |
a9ae3955 | 923 | */ |
6751f062 KZ |
924 | int istag = mnt_tag_is_valid(argv[0]); |
925 | ||
926 | if (istag && mnt_context_get_source(cxt)) | |
927 | /* -L, -U or --source together with LABEL= or UUID= */ | |
e3a7a5f8 | 928 | errx(MNT_EX_USAGE, _("source specified more than once")); |
6751f062 KZ |
929 | else if (istag || mnt_context_get_target(cxt)) |
930 | mnt_context_set_source(cxt, argv[0]); | |
931 | else | |
932 | mnt_context_set_target(cxt, argv[0]); | |
933 | ||
aedeaa40 | 934 | if (mnt_context_is_restricted(cxt) && |
6751f062 KZ |
935 | mnt_context_get_source(cxt) && |
936 | mnt_context_get_target(cxt)) | |
6497f2d9 | 937 | suid_drop(cxt); |
aedeaa40 | 938 | |
aedeaa40 KZ |
939 | } else if (argc == 2 && !mnt_context_get_source(cxt) |
940 | && !mnt_context_get_target(cxt)) { | |
a9ae3955 KZ |
941 | /* |
942 | * D) mount <source> <target> | |
943 | */ | |
97073441 | 944 | if (mnt_context_is_restricted(cxt)) |
6497f2d9 | 945 | suid_drop(cxt); |
6751f062 | 946 | |
97073441 KZ |
947 | mnt_context_set_source(cxt, argv[0]); |
948 | mnt_context_set_target(cxt, argv[1]); | |
aedeaa40 | 949 | |
6e1eda6f RM |
950 | } else { |
951 | warnx(_("bad usage")); | |
952 | errtryhelp(MNT_EX_USAGE); | |
953 | } | |
97073441 | 954 | |
5ebbc386 KZ |
955 | if (mnt_context_is_restricted(cxt)) |
956 | sanitize_paths(cxt); | |
957 | ||
6691d537 KZ |
958 | if (is_move) |
959 | /* "move" as option string is not supported by libmount */ | |
960 | mnt_context_set_mflags(cxt, MS_MOVE); | |
961 | ||
ba986e81 KZ |
962 | if ((oper && !has_remount_flag(cxt)) || propa) |
963 | /* For --make-* or --bind is fstab/mtab unnecessary */ | |
374fd21a | 964 | mnt_context_set_optsmode(cxt, MNT_OMODE_NOTAB); |
374fd21a | 965 | |
cfb9db30 | 966 | rc = mnt_context_mount(cxt); |
6497f2d9 KZ |
967 | |
968 | if (rc == -EPERM | |
969 | && mnt_context_is_restricted(cxt) | |
970 | && !mnt_context_syscall_called(cxt)) { | |
971 | /* Try it again without permissions */ | |
972 | suid_drop(cxt); | |
973 | rc = mnt_context_mount(cxt); | |
974 | } | |
ce433404 KZ |
975 | rc = mk_exit_code(cxt, rc); |
976 | ||
e3a7a5f8 | 977 | if (rc == MNT_EX_SUCCESS && mnt_context_is_verbose(cxt)) |
84600ddc | 978 | success_message(cxt); |
97073441 | 979 | done: |
97073441 KZ |
980 | mnt_free_context(cxt); |
981 | return rc; | |
982 | } | |
983 |