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mount: split umount_by_device() into two
[thirdparty/systemd.git] / src / mount / mount-tool.c
CommitLineData
db9ecf05 1/* SPDX-License-Identifier: LGPL-2.1-or-later */
450442cf
LP		 2
3#include <getopt.h>
4
450442cf 5#include "sd-bus.h"
dcd26523 6#include "sd-device.h"
450442cf 7
d6b4d1c7 8#include "build.h"
450442cf 9#include "bus-error.h"
9b71e4ab 10#include "bus-locator.h"
450442cf 11#include "bus-unit-util.h"
e45c81b8 12#include "bus-wait-for-jobs.h"
f4351959 13#include "chase-symlinks.h"
8437c059 14#include "device-util.h"
6f6165bf 15#include "dirent-util.h"
450442cf 16#include "escape.h"
9017f5d8 17#include "fd-util.h"
6f6165bf 18#include "fileio.h"
6ae6ea55 19#include "format-table.h"
ca78ad1d 20#include "format-util.h"
f4938c2e 21#include "fs-util.h"
450442cf 22#include "fstab-util.h"
7d991d48 23#include "libmount-util.h"
f2fae6fb 24#include "main-func.h"
e2be442e 25#include "mount-util.h"
049af8ad 26#include "mountpoint-util.h"
450442cf 27#include "pager.h"
599c7c54 28#include "parse-argument.h"
450442cf
LP		 29#include "parse-util.h"
30#include "path-util.h"
294bf0c3 31#include "pretty-print.h"
2306d177 32#include "process-util.h"
760877e9 33#include "sort-util.h"
450442cf 34#include "spawn-polkit-agent.h"
6f6165bf 35#include "stat-util.h"
450442cf 36#include "strv.h"
760877e9 37#include "terminal-util.h"
89ada3ba 38#include "unit-def.h"
450442cf 39#include "unit-name.h"
e09fc884 40#include "user-util.h"
450442cf
LP		 41
42enum {
43 ACTION_DEFAULT,
44 ACTION_MOUNT,
45 ACTION_AUTOMOUNT,
c37fb55b 46 ACTION_UMOUNT,
450442cf
LP		 47 ACTION_LIST,
48} arg_action = ACTION_DEFAULT;
49
50static bool arg_no_block = false;
0221d68a 51static PagerFlags arg_pager_flags = 0;
a5279634 52static bool arg_legend = true;
a362c069 53static bool arg_full = false;
450442cf
LP		 54static bool arg_ask_password = true;
55static bool arg_quiet = false;
56static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
57static bool arg_user = false;
58static const char *arg_host = NULL;
59static bool arg_discover = false;
60static char *arg_mount_what = NULL;
61static char *arg_mount_where = NULL;
62static char *arg_mount_type = NULL;
63static char *arg_mount_options = NULL;
64static char *arg_description = NULL;
65static char **arg_property = NULL;
66static usec_t arg_timeout_idle = USEC_INFINITY;
67static bool arg_timeout_idle_set = false;
68static char **arg_automount_property = NULL;
69static int arg_bind_device = -1;
e09fc884
ZJS		 70static uid_t arg_uid = UID_INVALID;
71static gid_t arg_gid = GID_INVALID;
450442cf 72static bool arg_fsck = true;
dc336483 73static bool arg_aggressive_gc = false;
450442cf 74
f2fae6fb
YW		 75STATIC_DESTRUCTOR_REGISTER(arg_mount_what, freep);
76STATIC_DESTRUCTOR_REGISTER(arg_mount_where, freep);
77STATIC_DESTRUCTOR_REGISTER(arg_mount_type, freep);
78STATIC_DESTRUCTOR_REGISTER(arg_mount_options, freep);
79STATIC_DESTRUCTOR_REGISTER(arg_description, freep);
80STATIC_DESTRUCTOR_REGISTER(arg_property, strv_freep);
81STATIC_DESTRUCTOR_REGISTER(arg_automount_property, strv_freep);
82
37ec0fdd
LP		 83static int help(void) {
84 _cleanup_free_ char *link = NULL;
85 int r;
86
87 r = terminal_urlify_man("systemd-mount", "1", &link);
88 if (r < 0)
89 return log_oom();
90
9017f5d8
YW		 91 printf("systemd-mount [OPTIONS...] WHAT [WHERE]\n"
92 "systemd-mount [OPTIONS...] --list\n"
93 "%s [OPTIONS...] %sWHAT|WHERE...\n\n"
450442cf
LP		 94 "Establish a mount or auto-mount point transiently.\n\n"
95 " -h --help Show this help\n"
96 " --version Show package version\n"
97 " --no-block Do not wait until operation finished\n"
98 " --no-pager Do not pipe output into a pager\n"
a5279634 99 " --no-legend Do not show the headers\n"
a362c069 100 " -l --full Do not ellipsize output\n"
450442cf
LP		 101 " --no-ask-password Do not prompt for password\n"
102 " -q --quiet Suppress information messages during runtime\n"
103 " --user Run as user unit\n"
104 " -H --host=[USER@]HOST Operate on remote host\n"
105 " -M --machine=CONTAINER Operate on local container\n"
106 " --discover Discover mount device metadata\n"
107 " -t --type=TYPE File system type\n"
108 " -o --options=OPTIONS Mount options\n"
e09fc884 109 " --owner=USER Add uid= and gid= options for USER\n"
450442cf
LP		 110 " --fsck=no Don't run file system check before mount\n"
111 " --description=TEXT Description for unit\n"
112 " -p --property=NAME=VALUE Set mount unit property\n"
113 " -A --automount=BOOL Create an auto-mount point\n"
114 " --timeout-idle-sec=SEC Specify automount idle timeout\n"
115 " --automount-property=NAME=VALUE\n"
116 " Set automount unit property\n"
117 " --bind-device Bind automount unit to device\n"
118 " --list List mountable block devices\n"
dc336483 119 " -u --umount Unmount mount points\n"
37ec0fdd 120 " -G --collect Unload unit after it stopped, even when failed\n"
bc556335
DDM		 121 "\nSee the %s for details.\n",
122 program_invocation_short_name,
123 streq(program_invocation_short_name, "systemd-umount") ? "" : "--umount ",
124 link);
37ec0fdd
LP		 125
126 return 0;
450442cf
LP		 127}
128
129static int parse_argv(int argc, char *argv[]) {
130
131 enum {
132 ARG_VERSION = 0x100,
133 ARG_NO_BLOCK,
134 ARG_NO_PAGER,
a5279634 135 ARG_NO_LEGEND,
450442cf
LP		 136 ARG_NO_ASK_PASSWORD,
137 ARG_USER,
138 ARG_SYSTEM,
139 ARG_DISCOVER,
140 ARG_MOUNT_TYPE,
141 ARG_MOUNT_OPTIONS,
e09fc884 142 ARG_OWNER,
450442cf
LP		 143 ARG_FSCK,
144 ARG_DESCRIPTION,
145 ARG_TIMEOUT_IDLE,
146 ARG_AUTOMOUNT,
147 ARG_AUTOMOUNT_PROPERTY,
148 ARG_BIND_DEVICE,
149 ARG_LIST,
150 };
151
152 static const struct option options[] = {
153 { "help", no_argument, NULL, 'h' },
154 { "version", no_argument, NULL, ARG_VERSION },
155 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
156 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
a5279634 157 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
a362c069 158 { "full", no_argument, NULL, 'l' },
450442cf
LP		 159 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
160 { "quiet", no_argument, NULL, 'q' },
161 { "user", no_argument, NULL, ARG_USER },
162 { "system", no_argument, NULL, ARG_SYSTEM },
163 { "host", required_argument, NULL, 'H' },
164 { "machine", required_argument, NULL, 'M' },
165 { "discover", no_argument, NULL, ARG_DISCOVER },
166 { "type", required_argument, NULL, 't' },
167 { "options", required_argument, NULL, 'o' },
e09fc884 168 { "owner", required_argument, NULL, ARG_OWNER },
0f923832 169 { "fsck", required_argument, NULL, ARG_FSCK },
450442cf
LP		 170 { "description", required_argument, NULL, ARG_DESCRIPTION },
171 { "property", required_argument, NULL, 'p' },
172 { "automount", required_argument, NULL, ARG_AUTOMOUNT },
173 { "timeout-idle-sec", required_argument, NULL, ARG_TIMEOUT_IDLE },
174 { "automount-property", required_argument, NULL, ARG_AUTOMOUNT_PROPERTY },
175 { "bind-device", no_argument, NULL, ARG_BIND_DEVICE },
176 { "list", no_argument, NULL, ARG_LIST },
c37fb55b
LR		 177 { "umount", no_argument, NULL, 'u' },
178 { "unmount", no_argument, NULL, 'u' },
dc336483 179 { "collect", no_argument, NULL, 'G' },
450442cf
LP		 180 {},
181 };
182
183 int r, c;
184
185 assert(argc >= 0);
186 assert(argv);
187
2306d177
LP		 188 if (invoked_as(argv, "systemd-umount"))
189 arg_action = ACTION_UMOUNT;
c37fb55b 190
a362c069 191 while ((c = getopt_long(argc, argv, "hqH:M:t:o:p:AuGl", options, NULL)) >= 0)
450442cf
LP		 192
193 switch (c) {
194
195 case 'h':
37ec0fdd 196 return help();
450442cf
LP		 197
198 case ARG_VERSION:
199 return version();
200
201 case ARG_NO_BLOCK:
202 arg_no_block = true;
203 break;
204
205 case ARG_NO_PAGER:
0221d68a 206 arg_pager_flags |= PAGER_DISABLE;
450442cf
LP		 207 break;
208
a5279634
YW		 209 case ARG_NO_LEGEND:
210 arg_legend = false;
211 break;
212
a362c069
YW		 213 case 'l':
214 arg_full = true;
215 break;
216
450442cf
LP		 217 case ARG_NO_ASK_PASSWORD:
218 arg_ask_password = false;
219 break;
220
221 case 'q':
222 arg_quiet = true;
223 break;
224
225 case ARG_USER:
226 arg_user = true;
227 break;
228
229 case ARG_SYSTEM:
230 arg_user = false;
231 break;
232
233 case 'H':
234 arg_transport = BUS_TRANSPORT_REMOTE;
235 arg_host = optarg;
236 break;
237
238 case 'M':
239 arg_transport = BUS_TRANSPORT_MACHINE;
240 arg_host = optarg;
241 break;
242
243 case ARG_DISCOVER:
244 arg_discover = true;
245 break;
246
247 case 't':
b3f9c17a
YW		 248 r = free_and_strdup_warn(&arg_mount_type, optarg);
249 if (r < 0)
250 return r;
450442cf
LP		 251 break;
252
253 case 'o':
b3f9c17a
YW		 254 r = free_and_strdup_warn(&arg_mount_options, optarg);
255 if (r < 0)
256 return r;
450442cf
LP		 257 break;
258
e09fc884
ZJS		 259 case ARG_OWNER: {
260 const char *user = optarg;
261
fafff8f1 262 r = get_user_creds(&user, &arg_uid, &arg_gid, NULL, NULL, 0);
e09fc884
ZJS		 263 if (r < 0)
264 return log_error_errno(r,
265 r == -EBADMSG ? "UID or GID of user %s are invalid."
266 : "Cannot use \"%s\" as owner: %m",
267 optarg);
268 break;
269 }
270
450442cf 271 case ARG_FSCK:
599c7c54 272 r = parse_boolean_argument("--fsck=", optarg, &arg_fsck);
450442cf 273 if (r < 0)
599c7c54 274 return r;
450442cf
LP		 275 break;
276
277 case ARG_DESCRIPTION:
b3f9c17a
YW		 278 r = free_and_strdup_warn(&arg_description, optarg);
279 if (r < 0)
280 return r;
450442cf
LP		 281 break;
282
283 case 'p':
284 if (strv_extend(&arg_property, optarg) < 0)
285 return log_oom();
286
287 break;
288
289 case 'A':
290 arg_action = ACTION_AUTOMOUNT;
291 break;
292
293 case ARG_AUTOMOUNT:
c3470872 294 r = parse_boolean_argument("--automount=", optarg, NULL);
450442cf 295 if (r < 0)
c3470872 296 return r;
450442cf
LP		 297
298 arg_action = r ? ACTION_AUTOMOUNT : ACTION_MOUNT;
299 break;
300
301 case ARG_TIMEOUT_IDLE:
302 r = parse_sec(optarg, &arg_timeout_idle);
303 if (r < 0)
304 return log_error_errno(r, "Failed to parse timeout: %s", optarg);
305
306 break;
307
308 case ARG_AUTOMOUNT_PROPERTY:
309 if (strv_extend(&arg_automount_property, optarg) < 0)
310 return log_oom();
311
312 break;
313
314 case ARG_BIND_DEVICE:
315 arg_bind_device = true;
316 break;
317
318 case ARG_LIST:
319 arg_action = ACTION_LIST;
320 break;
321
c37fb55b
LR		 322 case 'u':
323 arg_action = ACTION_UMOUNT;
324 break;
325
dc336483
YW		 326 case 'G':
327 arg_aggressive_gc = true;
328 break;
329
450442cf
LP		 330 case '?':
331 return -EINVAL;
332
333 default:
04499a70 334 assert_not_reached();
450442cf
LP		 335 }
336
966f3a24
LP		 337 if (arg_user)
338 arg_ask_password = false;
339
baaa35ad
ZJS		 340 if (arg_user && arg_transport != BUS_TRANSPORT_LOCAL)
341 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
342 "Execution in user context is not supported on non-local systems.");
450442cf
LP		 343
344 if (arg_action == ACTION_LIST) {
baaa35ad
ZJS		 345 if (optind < argc)
346 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
347 "Too many arguments.");
450442cf 348
baaa35ad
ZJS		 349 if (arg_transport != BUS_TRANSPORT_LOCAL)
350 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
351 "Listing devices only supported locally.");
9017f5d8 352 } else if (arg_action == ACTION_UMOUNT) {
baaa35ad
ZJS		 353 if (optind >= argc)
354 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
355 "At least one argument required.");
9017f5d8
YW		 356
357 if (arg_transport != BUS_TRANSPORT_LOCAL) {
3747daa2
YW		 358 int i;
359
360 for (i = optind; i < argc; i++)
baaa35ad
ZJS		 361 if (!path_is_absolute(argv[i]) )
362 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
363 "Only absolute path is supported: %s", argv[i]);
9017f5d8 364 }
450442cf 365 } else {
baaa35ad
ZJS		 366 if (optind >= argc)
367 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
368 "At least one argument required.");
450442cf 369
baaa35ad
ZJS		 370 if (argc > optind+2)
371 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
372 "At most two arguments required.");
450442cf 373
c15ab81e 374 if (arg_mount_type && !fstype_is_blockdev_backed(arg_mount_type)) {
e2be442e
YW		 375 arg_mount_what = strdup(argv[optind]);
376 if (!arg_mount_what)
377 return log_oom();
378
379 } else if (arg_transport == BUS_TRANSPORT_LOCAL) {
5bc9f949 380 _cleanup_free_ char *u = NULL;
450442cf 381
afde5b16
YW		 382 u = fstab_node_to_udev_node(argv[optind]);
383 if (!u)
384 return log_oom();
385
a5648b80 386 r = chase_symlinks(u, NULL, 0, &arg_mount_what, NULL);
450442cf 387 if (r < 0)
de345d34 388 return log_error_errno(r, "Failed to make path %s absolute: %m", u);
afde5b16 389 } else {
4185da7c 390 arg_mount_what = strdup(argv[optind]);
afde5b16
YW		 391 if (!arg_mount_what)
392 return log_oom();
393
4ff361cc 394 path_simplify(arg_mount_what);
afde5b16 395
baaa35ad
ZJS		 396 if (!path_is_absolute(arg_mount_what))
397 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
398 "Only absolute path is supported: %s", arg_mount_what);
afde5b16
YW		 399 }
400
401 if (argc > optind+1) {
402 if (arg_transport == BUS_TRANSPORT_LOCAL) {
a5648b80 403 r = chase_symlinks(argv[optind+1], NULL, CHASE_NONEXISTENT, &arg_mount_where, NULL);
afde5b16 404 if (r < 0)
de345d34 405 return log_error_errno(r, "Failed to make path %s absolute: %m", argv[optind+1]);
afde5b16
YW		 406 } else {
407 arg_mount_where = strdup(argv[optind+1]);
408 if (!arg_mount_where)
409 return log_oom();
410
4ff361cc 411 path_simplify(arg_mount_where);
afde5b16 412
baaa35ad
ZJS		 413 if (!path_is_absolute(arg_mount_where))
414 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
415 "Only absolute path is supported: %s", arg_mount_where);
afde5b16 416 }
450442cf
LP		 417 } else
418 arg_discover = true;
419
baaa35ad
ZJS		 420 if (arg_discover && arg_transport != BUS_TRANSPORT_LOCAL)
421 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
422 "Automatic mount location discovery is only supported locally.");
450442cf
LP		 423 }
424
425 return 1;
426}
427
89ada3ba 428static int transient_unit_set_properties(sd_bus_message *m, UnitType t, char **properties) {
450442cf
LP		 429 int r;
430
05b4d3b5
AK		 431 if (!isempty(arg_description)) {
432 r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description);
433 if (r < 0)
434 return r;
435 }
450442cf
LP		 436
437 if (arg_bind_device && is_device_path(arg_mount_what)) {
438 _cleanup_free_ char *device_unit = NULL;
439
440 r = unit_name_from_path(arg_mount_what, ".device", &device_unit);
441 if (r < 0)
442 return r;
443
444 r = sd_bus_message_append(m, "(sv)(sv)",
445 "After", "as", 1, device_unit,
446 "BindsTo", "as", 1, device_unit);
447 if (r < 0)
448 return r;
449 }
450
dc336483
YW		 451 if (arg_aggressive_gc) {
452 r = sd_bus_message_append(m, "(sv)", "CollectMode", "s", "inactive-or-failed");
453 if (r < 0)
454 return r;
455 }
456
89ada3ba 457 r = bus_append_unit_property_assignment_many(m, t, properties);
450442cf
LP		 458 if (r < 0)
459 return r;
460
461 return 0;
462}
463
464static int transient_mount_set_properties(sd_bus_message *m) {
e09fc884 465 _cleanup_free_ char *options = NULL;
450442cf
LP		 466 int r;
467
468 assert(m);
469
89ada3ba 470 r = transient_unit_set_properties(m, UNIT_MOUNT, arg_property);
450442cf
LP		 471 if (r < 0)
472 return r;
473
474 if (arg_mount_what) {
475 r = sd_bus_message_append(m, "(sv)", "What", "s", arg_mount_what);
476 if (r < 0)
477 return r;
478 }
479
480 if (arg_mount_type) {
481 r = sd_bus_message_append(m, "(sv)", "Type", "s", arg_mount_type);
482 if (r < 0)
483 return r;
484 }
485
e09fc884
ZJS		 486 /* Prepend uid=…,gid=… if arg_uid is set */
487 if (arg_uid != UID_INVALID) {
488 r = asprintf(&options,
489 "uid=" UID_FMT ",gid=" GID_FMT "%s%s",
490 arg_uid, arg_gid,
980982da 491 arg_mount_options ? "," : "", strempty(arg_mount_options));
450442cf 492 if (r < 0)
e09fc884 493 return -ENOMEM;
450442cf
LP		 494 }
495
e09fc884
ZJS		 496 if (options || arg_mount_options) {
497 log_debug("Using mount options: %s", options ?: arg_mount_options);
498
499 r = sd_bus_message_append(m, "(sv)", "Options", "s", options ?: arg_mount_options);
500 if (r < 0)
501 return r;
502 } else
503 log_debug("Not using any mount options");
504
450442cf
LP		 505 if (arg_fsck) {
506 _cleanup_free_ char *fsck = NULL;
507
508 r = unit_name_from_path_instance("systemd-fsck", arg_mount_what, ".service", &fsck);
509 if (r < 0)
510 return r;
511
512 r = sd_bus_message_append(m,
513 "(sv)(sv)",
514 "Requires", "as", 1, fsck,
515 "After", "as", 1, fsck);
516 if (r < 0)
517 return r;
518 }
519
520 return 0;
521}
522
523static int transient_automount_set_properties(sd_bus_message *m) {
524 int r;
525
526 assert(m);
527
89ada3ba 528 r = transient_unit_set_properties(m, UNIT_AUTOMOUNT, arg_automount_property);
450442cf
LP		 529 if (r < 0)
530 return r;
531
532 if (arg_timeout_idle != USEC_INFINITY) {
533 r = sd_bus_message_append(m, "(sv)", "TimeoutIdleUSec", "t", arg_timeout_idle);
534 if (r < 0)
535 return r;
536 }
537
538 return 0;
539}
540
541static int start_transient_mount(
542 sd_bus *bus,
543 char **argv) {
544
545 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
546 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
547 _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
548 _cleanup_free_ char *mount_unit = NULL;
549 int r;
550
551 if (!arg_no_block) {
552 r = bus_wait_for_jobs_new(bus, &w);
553 if (r < 0)
554 return log_error_errno(r, "Could not watch jobs: %m");
555 }
556
557 r = unit_name_from_path(arg_mount_where, ".mount", &mount_unit);
558 if (r < 0)
559 return log_error_errno(r, "Failed to make mount unit name: %m");
560
92cb8ebc 561 r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, "StartTransientUnit");
450442cf
LP		 562 if (r < 0)
563 return bus_log_create_error(r);
564
565 r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
566 if (r < 0)
567 return bus_log_create_error(r);
568
569 /* Name and mode */
570 r = sd_bus_message_append(m, "ss", mount_unit, "fail");
571 if (r < 0)
572 return bus_log_create_error(r);
573
574 /* Properties */
575 r = sd_bus_message_open_container(m, 'a', "(sv)");
576 if (r < 0)
577 return bus_log_create_error(r);
578
579 r = transient_mount_set_properties(m);
580 if (r < 0)
581 return bus_log_create_error(r);
582
583 r = sd_bus_message_close_container(m);
584 if (r < 0)
585 return bus_log_create_error(r);
586
587 /* Auxiliary units */
588 r = sd_bus_message_append(m, "a(sa(sv))", 0);
589 if (r < 0)
590 return bus_log_create_error(r);
591
8a4b13c5 592 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
450442cf
LP		 593
594 r = sd_bus_call(bus, m, 0, &error, &reply);
595 if (r < 0)
596 return log_error_errno(r, "Failed to start transient mount unit: %s", bus_error_message(&error, r));
597
598 if (w) {
599 const char *object;
600
601 r = sd_bus_message_read(reply, "o", &object);
602 if (r < 0)
603 return bus_log_parse_error(r);
604
86980de6 605 r = bus_wait_for_jobs_one(w, object, arg_quiet, NULL);
450442cf
LP		 606 if (r < 0)
607 return r;
608 }
609
610 if (!arg_quiet)
611 log_info("Started unit %s%s%s for mount point: %s%s%s",
612 ansi_highlight(), mount_unit, ansi_normal(),
613 ansi_highlight(), arg_mount_where, ansi_normal());
614
615 return 0;
616}
617
618static int start_transient_automount(
619 sd_bus *bus,
620 char **argv) {
621
622 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
623 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
624 _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
625 _cleanup_free_ char *automount_unit = NULL, *mount_unit = NULL;
626 int r;
627
628 if (!arg_no_block) {
629 r = bus_wait_for_jobs_new(bus, &w);
630 if (r < 0)
631 return log_error_errno(r, "Could not watch jobs: %m");
632 }
633
634 r = unit_name_from_path(arg_mount_where, ".automount", &automount_unit);
635 if (r < 0)
636 return log_error_errno(r, "Failed to make automount unit name: %m");
637
638 r = unit_name_from_path(arg_mount_where, ".mount", &mount_unit);
639 if (r < 0)
640 return log_error_errno(r, "Failed to make mount unit name: %m");
641
92cb8ebc 642 r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, "StartTransientUnit");
450442cf
LP		 643 if (r < 0)
644 return bus_log_create_error(r);
645
646 r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
647 if (r < 0)
648 return bus_log_create_error(r);
649
650 /* Name and mode */
651 r = sd_bus_message_append(m, "ss", automount_unit, "fail");
652 if (r < 0)
653 return bus_log_create_error(r);
654
655 /* Properties */
656 r = sd_bus_message_open_container(m, 'a', "(sv)");
657 if (r < 0)
658 return bus_log_create_error(r);
659
660 r = transient_automount_set_properties(m);
661 if (r < 0)
662 return bus_log_create_error(r);
663
664 r = sd_bus_message_close_container(m);
665 if (r < 0)
666 return bus_log_create_error(r);
667
668 /* Auxiliary units */
669 r = sd_bus_message_open_container(m, 'a', "(sa(sv))");
670 if (r < 0)
671 return bus_log_create_error(r);
672
673 r = sd_bus_message_open_container(m, 'r', "sa(sv)");
674 if (r < 0)
675 return bus_log_create_error(r);
676
677 r = sd_bus_message_append(m, "s", mount_unit);
678 if (r < 0)
679 return bus_log_create_error(r);
680
681 r = sd_bus_message_open_container(m, 'a', "(sv)");
682 if (r < 0)
683 return bus_log_create_error(r);
684
685 r = transient_mount_set_properties(m);
686 if (r < 0)
687 return bus_log_create_error(r);
688
689 r = sd_bus_message_close_container(m);
690 if (r < 0)
691 return bus_log_create_error(r);
692
693 r = sd_bus_message_close_container(m);
694 if (r < 0)
695 return bus_log_create_error(r);
696
697 r = sd_bus_message_close_container(m);
698 if (r < 0)
699 return bus_log_create_error(r);
700
8a4b13c5 701 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
450442cf
LP		 702
703 r = sd_bus_call(bus, m, 0, &error, &reply);
704 if (r < 0)
705 return log_error_errno(r, "Failed to start transient automount unit: %s", bus_error_message(&error, r));
706
707 if (w) {
708 const char *object;
709
710 r = sd_bus_message_read(reply, "o", &object);
711 if (r < 0)
712 return bus_log_parse_error(r);
713
86980de6 714 r = bus_wait_for_jobs_one(w, object, arg_quiet, NULL);
450442cf
LP		 715 if (r < 0)
716 return r;
717 }
718
719 if (!arg_quiet)
720 log_info("Started unit %s%s%s for mount point: %s%s%s",
721 ansi_highlight(), automount_unit, ansi_normal(),
722 ansi_highlight(), arg_mount_where, ansi_normal());
723
724 return 0;
725}
726
f0aac575 727static int find_mount_points(const char *what, char ***list) {
7d991d48
ZJS		 728 _cleanup_(mnt_free_tablep) struct libmnt_table *table = NULL;
729 _cleanup_(mnt_free_iterp) struct libmnt_iter *iter = NULL;
f0aac575 730 _cleanup_strv_free_ char **l = NULL;
319a4f4b 731 size_t n = 0;
7d991d48 732 int r;
f0aac575
YW		 733
734 assert(what);
735 assert(list);
736
737 /* Returns all mount points obtained from /proc/self/mountinfo in *list,
738 * and the number of mount points as return value. */
739
e2857b3d 740 r = libmount_parse(NULL, NULL, &table, &iter);
7d991d48
ZJS		 741 if (r < 0)
742 return log_error_errno(r, "Failed to parse /proc/self/mountinfo: %m");
f0aac575
YW		 743
744 for (;;) {
7d991d48
ZJS		 745 struct libmnt_fs *fs;
746 const char *source, *target;
f0aac575 747
7d991d48
ZJS		 748 r = mnt_table_next_fs(table, iter, &fs);
749 if (r == 1)
750 break;
751 if (r < 0)
752 return log_error_errno(r, "Failed to get next entry from /proc/self/mountinfo: %m");
f0aac575 753
7d991d48
ZJS		 754 source = mnt_fs_get_source(fs);
755 target = mnt_fs_get_target(fs);
756 if (!source || !target)
f0aac575
YW		 757 continue;
758
7d991d48 759 if (!path_equal(source, what))
f0aac575
YW		 760 continue;
761
762 /* one extra slot is needed for the terminating NULL */
319a4f4b 763 if (!GREEDY_REALLOC0(l, n + 2))
f0aac575
YW		 764 return log_oom();
765
7d991d48
ZJS		 766 l[n] = strdup(target);
767 if (!l[n])
768 return log_oom();
769 n++;
f0aac575
YW		 770 }
771
319a4f4b 772 if (!GREEDY_REALLOC0(l, n + 1))
290843c3
LP		 773 return log_oom();
774
ae2a15bc 775 *list = TAKE_PTR(l);
f0aac575
YW		 776 return n;
777}
778
779static int find_loop_device(const char *backing_file, char **loop_dev) {
780 _cleanup_closedir_ DIR *d = NULL;
f0aac575
YW		 781 _cleanup_free_ char *l = NULL;
782
783 assert(backing_file);
784 assert(loop_dev);
785
786 d = opendir("/sys/devices/virtual/block");
5c6803f5
LP		 787 if (!d)
788 return -errno;
f0aac575
YW		 789
790 FOREACH_DIRENT(de, d, return -errno) {
791 _cleanup_free_ char *sys = NULL, *fname = NULL;
792 int r;
793
f0aac575
YW		 794 if (de->d_type != DT_DIR)
795 continue;
796
797 if (!startswith(de->d_name, "loop"))
798 continue;
799
657ee2d8 800 sys = path_join("/sys/devices/virtual/block", de->d_name, "loop/backing_file");
f0aac575 801 if (!sys)
5c6803f5 802 return -ENOMEM;
f0aac575
YW		 803
804 r = read_one_line_file(sys, &fname);
a53dceb7
LP		 805 if (r < 0) {
806 log_debug_errno(r, "Failed to read %s, ignoring: %m", sys);
f0aac575 807 continue;
a53dceb7 808 }
f0aac575
YW		 809
810 if (files_same(fname, backing_file, 0) <= 0)
811 continue;
812
657ee2d8 813 l = path_join("/dev", de->d_name);
f0aac575 814 if (!l)
5c6803f5 815 return -ENOMEM;
f0aac575
YW		 816
817 break;
818 }
819
820 if (!l)
aa46fa64 821 return -ENXIO;
f0aac575 822
ae2a15bc 823 *loop_dev = TAKE_PTR(l);
f0aac575
YW		 824
825 return 0;
826}
827
c37fb55b
LR		 828static int stop_mount(
829 sd_bus *bus,
9017f5d8 830 const char *where,
6f6165bf 831 const char *suffix) {
c37fb55b
LR		 832
833 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
834 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
835 _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
836 _cleanup_free_ char *mount_unit = NULL;
837 int r;
838
839 if (!arg_no_block) {
840 r = bus_wait_for_jobs_new(bus, &w);
841 if (r < 0)
842 return log_error_errno(r, "Could not watch jobs: %m");
843 }
844
9017f5d8 845 r = unit_name_from_path(where, suffix, &mount_unit);
c37fb55b 846 if (r < 0)
6442c210 847 return log_error_errno(r, "Failed to make %s unit name from path %s: %m", suffix + 1, where);
c37fb55b 848
92cb8ebc 849 r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, "StopUnit");
c37fb55b
LR		 850 if (r < 0)
851 return bus_log_create_error(r);
852
853 r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
854 if (r < 0)
855 return bus_log_create_error(r);
856
857 /* Name and mode */
858 r = sd_bus_message_append(m, "ss", mount_unit, "fail");
859 if (r < 0)
860 return bus_log_create_error(r);
861
8a4b13c5 862 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
c37fb55b
LR		 863
864 r = sd_bus_call(bus, m, 0, &error, &reply);
6442c210
YW		 865 if (r < 0) {
866 if (streq(suffix, ".automount") &&
867 sd_bus_error_has_name(&error, "org.freedesktop.systemd1.NoSuchUnit"))
868 return 0;
869 return log_error_errno(r, "Failed to stop %s unit: %s", suffix + 1, bus_error_message(&error, r));
870 }
c37fb55b
LR		 871
872 if (w) {
873 const char *object;
874
875 r = sd_bus_message_read(reply, "o", &object);
876 if (r < 0)
877 return bus_log_parse_error(r);
878
86980de6 879 r = bus_wait_for_jobs_one(w, object, arg_quiet, NULL);
c37fb55b
LR		 880 if (r < 0)
881 return r;
882 }
883
884 if (!arg_quiet)
885 log_info("Stopped unit %s%s%s for mount point: %s%s%s",
886 ansi_highlight(), mount_unit, ansi_normal(),
9017f5d8 887 ansi_highlight(), where, ansi_normal());
c37fb55b
LR		 888
889 return 0;
890}
891
892static int stop_mounts(
893 sd_bus *bus,
6f6165bf 894 const char *where) {
c37fb55b
LR		 895
896 int r;
897
baaa35ad
ZJS		 898 if (path_equal(where, "/"))
899 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
900 "Refusing to operate on root directory: %s", where);
9017f5d8 901
baaa35ad
ZJS		 902 if (!path_is_normalized(where))
903 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
904 "Path contains non-normalized components: %s", where);
9017f5d8 905
6f6165bf 906 r = stop_mount(bus, where, ".mount");
c37fb55b
LR		 907 if (r < 0)
908 return r;
909
6f6165bf 910 r = stop_mount(bus, where, ".automount");
c37fb55b
LR		 911 if (r < 0)
912 return r;
913
914 return 0;
915}
916
961d08ca 917static int umount_by_device(sd_bus *bus, sd_device *dev) {
dcd26523 918 _cleanup_(sd_device_unrefp) sd_device *d = NULL;
f0aac575 919 _cleanup_strv_free_ char **list = NULL;
9017f5d8 920 const char *v;
961d08ca 921 int r, ret = 0;
9017f5d8 922
961d08ca
YW		 923 assert(bus);
924 assert(dev);
9017f5d8 925
961d08ca
YW		 926 if (sd_device_get_property_value(d, "SYSTEMD_MOUNT_WHERE", &v) >= 0)
927 ret = stop_mounts(bus, v);
9017f5d8 928
961d08ca 929 r = sd_device_get_devname(dev, &v);
dcd26523 930 if (r < 0)
961d08ca 931 return r;
9017f5d8 932
961d08ca 933 r = find_mount_points(v, &list);
f0aac575
YW		 934 if (r < 0)
935 return r;
936
961d08ca 937 STRV_FOREACH(l, list) {
f0aac575 938 r = stop_mounts(bus, *l);
6f6165bf 939 if (r < 0)
961d08ca 940 ret = r;
9017f5d8
YW		 941 }
942
961d08ca
YW		 943 return ret;
944}
945
946static int umount_by_device_node(sd_bus *bus, const char *node) {
947 _cleanup_(sd_device_unrefp) sd_device *dev = NULL;
948 const char *v;
949 int r;
950
951 assert(bus);
952 assert(node);
953
954 r = sd_device_new_from_devname(&dev, node);
955 if (r < 0)
956 return log_error_errno(r, "Failed to get device from %s: %m", node);
957
958 r = sd_device_get_property_value(dev, "ID_FS_USAGE", &v);
959 if (r < 0)
960 return log_device_error_errno(dev, r, "Failed to get \"ID_FS_USAGE\" device property: %m");
961
962 if (!streq(v, "filesystem"))
963 return log_device_error_errno(dev, SYNTHETIC_ERRNO(EINVAL),
964 "%s does not contain a known file system.", node);
965
966 return umount_by_device(bus, dev);
6f6165bf
YW		 967}
968
969static int umount_loop(sd_bus *bus, const char *backing_file) {
f0aac575
YW		 970 _cleanup_free_ char *loop_dev = NULL;
971 int r;
6f6165bf
YW		 972
973 assert(backing_file);
974
f0aac575
YW		 975 r = find_loop_device(backing_file, &loop_dev);
976 if (r < 0)
aa46fa64 977 return log_error_errno(r, r == -ENXIO ? "File %s is not mounted." : "Can't get loop device for %s: %m", backing_file);
6f6165bf 978
961d08ca 979 return umount_by_device_node(bus, loop_dev);
9017f5d8
YW		 980}
981
982static int action_umount(
983 sd_bus *bus,
984 int argc,
985 char **argv) {
986
987 int i, r, r2 = 0;
988
3747daa2
YW		 989 if (arg_transport != BUS_TRANSPORT_LOCAL) {
990 for (i = optind; i < argc; i++) {
991 _cleanup_free_ char *p = NULL;
992
993 p = strdup(argv[i]);
994 if (!p)
995 return log_oom();
996
4ff361cc 997 path_simplify(p);
3747daa2
YW		 998
999 r = stop_mounts(bus, p);
1000 if (r < 0)
1001 r2 = r;
1002 }
1003 return r2;
1004 }
1005
9017f5d8 1006 for (i = optind; i < argc; i++) {
5bc9f949 1007 _cleanup_free_ char *u = NULL, *p = NULL;
6f6165bf 1008 struct stat st;
9017f5d8
YW		 1009
1010 u = fstab_node_to_udev_node(argv[i]);
1011 if (!u)
1012 return log_oom();
9017f5d8 1013
a5648b80 1014 r = chase_symlinks(u, NULL, 0, &p, NULL);
9017f5d8 1015 if (r < 0) {
02a8bd65 1016 r2 = log_error_errno(r, "Failed to make path %s absolute: %m", argv[i]);
9017f5d8
YW		 1017 continue;
1018 }
1019
6f6165bf 1020 if (stat(p, &st) < 0)
02a8bd65 1021 return log_error_errno(errno, "Can't stat %s (from %s): %m", p, argv[i]);
9017f5d8 1022
6f6165bf 1023 if (S_ISBLK(st.st_mode))
961d08ca 1024 r = umount_by_device_node(bus, p);
6f6165bf
YW		 1025 else if (S_ISREG(st.st_mode))
1026 r = umount_loop(bus, p);
1027 else if (S_ISDIR(st.st_mode))
1028 r = stop_mounts(bus, p);
1029 else {
02a8bd65 1030 log_error("Invalid file type: %s (from %s)", p, argv[i]);
6f6165bf
YW		 1031 r = -EINVAL;
1032 }
1033
1034 if (r < 0)
9017f5d8
YW		 1035 r2 = r;
1036 }
1037
1038 return r2;
1039}
1040
dcd26523 1041static int acquire_mount_type(sd_device *d) {
450442cf
LP		 1042 const char *v;
1043
1044 assert(d);
1045
1046 if (arg_mount_type)
1047 return 0;
1048
dcd26523 1049 if (sd_device_get_property_value(d, "ID_FS_TYPE", &v) < 0)
450442cf
LP		 1050 return 0;
1051
1052 arg_mount_type = strdup(v);
1053 if (!arg_mount_type)
1054 return log_oom();
1055
1056 log_debug("Discovered type=%s", arg_mount_type);
1057 return 1;
1058}
1059
dcd26523 1060static int acquire_mount_options(sd_device *d) {
450442cf
LP		 1061 const char *v;
1062
dcd26523
YW		 1063 assert(d);
1064
450442cf
LP		 1065 if (arg_mount_options)
1066 return 0;
1067
dcd26523 1068 if (sd_device_get_property_value(d, "SYSTEMD_MOUNT_OPTIONS", &v) < 0)
450442cf
LP		 1069 return 0;
1070
1071 arg_mount_options = strdup(v);
1072 if (!arg_mount_options)
1073 return log_oom();
1074
1075 log_debug("Discovered options=%s", arg_mount_options);
1076 return 1;
1077}
1078
dcd26523 1079static const char *get_model(sd_device *d) {
450442cf
LP		 1080 const char *model;
1081
1082 assert(d);
1083
dcd26523 1084 if (sd_device_get_property_value(d, "ID_MODEL_FROM_DATABASE", &model) >= 0)
450442cf
LP		 1085 return model;
1086
dcd26523
YW		 1087 if (sd_device_get_property_value(d, "ID_MODEL", &model) >= 0)
1088 return model;
1089
1090 return NULL;
450442cf
LP		 1091}
1092
dcd26523 1093static const char* get_label(sd_device *d) {
450442cf
LP		 1094 const char *label;
1095
1096 assert(d);
1097
dcd26523
YW		 1098 if (sd_device_get_property_value(d, "ID_FS_LABEL", &label) >= 0)
1099 return label;
1100
1101 if (sd_device_get_property_value(d, "ID_PART_ENTRY_NAME", &label) >= 0)
450442cf
LP		 1102 return label;
1103
dcd26523 1104 return NULL;
450442cf
LP		 1105}
1106
dcd26523 1107static int acquire_mount_where(sd_device *d) {
450442cf
LP		 1108 const char *v;
1109
1110 if (arg_mount_where)
1111 return 0;
1112
dcd26523 1113 if (sd_device_get_property_value(d, "SYSTEMD_MOUNT_WHERE", &v) < 0) {
450442cf
LP		 1114 _cleanup_free_ char *escaped = NULL;
1115 const char *name;
1116
1117 name = get_label(d);
1118 if (!name)
1119 name = get_model(d);
1120 if (!name) {
1121 const char *dn;
1122
dcd26523 1123 if (sd_device_get_devname(d, &dn) < 0)
450442cf
LP		 1124 return 0;
1125
1126 name = basename(dn);
1127 }
1128
1129 escaped = xescape(name, "\\");
f0aac575
YW		 1130 if (!escaped)
1131 return log_oom();
450442cf
LP		 1132 if (!filename_is_valid(escaped))
1133 return 0;
1134
657ee2d8 1135 arg_mount_where = path_join("/run/media/system", escaped);
450442cf
LP		 1136 } else
1137 arg_mount_where = strdup(v);
1138
1139 if (!arg_mount_where)
1140 return log_oom();
1141
1142 log_debug("Discovered where=%s", arg_mount_where);
1143 return 1;
1144}
1145
95a45a87 1146static int acquire_mount_where_for_loop_dev(sd_device *dev) {
f0aac575 1147 _cleanup_strv_free_ char **list = NULL;
95a45a87 1148 const char *node;
f0aac575
YW		 1149 int r;
1150
95a45a87
YW		 1151 assert(dev);
1152
f0aac575
YW		 1153 if (arg_mount_where)
1154 return 0;
1155
95a45a87 1156 r = sd_device_get_devname(dev, &node);
f0aac575
YW		 1157 if (r < 0)
1158 return r;
95a45a87
YW		 1159
1160 r = find_mount_points(node, &list);
1161 if (r < 0)
1162 return r;
1163 if (r == 0)
1164 return log_device_error_errno(dev, SYNTHETIC_ERRNO(EINVAL),
1165 "Can't find mount point of %s. It is expected that %s is already mounted on a place.",
1166 node, node);
1167 if (r >= 2)
1168 return log_device_error_errno(dev, SYNTHETIC_ERRNO(EINVAL),
1169 "%s is mounted on %d places. It is expected that %s is mounted on a place.",
1170 node, r, node);
f0aac575
YW		 1171
1172 arg_mount_where = strdup(list[0]);
1173 if (!arg_mount_where)
1174 return log_oom();
1175
1176 log_debug("Discovered where=%s", arg_mount_where);
1177 return 1;
1178}
1179
dcd26523 1180static int acquire_description(sd_device *d) {
450442cf
LP		 1181 const char *model, *label;
1182
1183 if (arg_description)
1184 return 0;
1185
1186 model = get_model(d);
1187
1188 label = get_label(d);
1189 if (!label)
dcd26523 1190 (void) sd_device_get_property_value(d, "ID_PART_ENTRY_NUMBER", &label);
450442cf
LP		 1191
1192 if (model && label)
605405c6 1193 arg_description = strjoin(model, " ", label);
450442cf
LP		 1194 else if (label)
1195 arg_description = strdup(label);
1196 else if (model)
1197 arg_description = strdup(model);
1198 else
05b4d3b5 1199 return 0;
450442cf
LP		 1200
1201 if (!arg_description)
1202 return log_oom();
1203
1204 log_debug("Discovered description=%s", arg_description);
1205 return 1;
1206}
1207
dcd26523 1208static int acquire_removable(sd_device *d) {
450442cf
LP		 1209 const char *v;
1210
1211 /* Shortcut this if there's no reason to check it */
1212 if (arg_action != ACTION_DEFAULT && arg_timeout_idle_set && arg_bind_device >= 0)
1213 return 0;
1214
1215 for (;;) {
1f22fc38 1216 if (sd_device_get_sysattr_value(d, "removable", &v) >= 0)
450442cf
LP		 1217 break;
1218
dcd26523 1219 if (sd_device_get_parent(d, &d) < 0)
450442cf
LP		 1220 return 0;
1221
dcd26523 1222 if (sd_device_get_subsystem(d, &v) < 0 || !streq(v, "block"))
450442cf
LP		 1223 return 0;
1224 }
1225
1226 if (parse_boolean(v) <= 0)
1227 return 0;
1228
1229 log_debug("Discovered removable device.");
1230
1231 if (arg_action == ACTION_DEFAULT) {
1232 log_debug("Automatically turning on automount.");
1233 arg_action = ACTION_AUTOMOUNT;
1234 }
1235
1236 if (!arg_timeout_idle_set) {
1237 log_debug("Setting idle timeout to 1s.");
1238 arg_timeout_idle = USEC_PER_SEC;
1239 }
1240
1241 if (arg_bind_device < 0) {
1242 log_debug("Binding automount unit to device.");
1243 arg_bind_device = true;
1244 }
1245
1246 return 1;
1247}
1248
f0aac575 1249static int discover_loop_backing_file(void) {
dcd26523 1250 _cleanup_(sd_device_unrefp) sd_device *d = NULL;
f0aac575 1251 _cleanup_free_ char *loop_dev = NULL;
450442cf
LP		 1252 struct stat st;
1253 const char *v;
1254 int r;
1255
f0aac575 1256 r = find_loop_device(arg_mount_what, &loop_dev);
aa46fa64 1257 if (r < 0 && r != -ENXIO)
f0aac575
YW		 1258 return log_error_errno(errno, "Can't get loop device for %s: %m", arg_mount_what);
1259
aa46fa64 1260 if (r == -ENXIO) {
f0aac575
YW		 1261 _cleanup_free_ char *escaped = NULL;
1262
1263 if (arg_mount_where)
1264 return 0;
1265
1266 escaped = xescape(basename(arg_mount_what), "\\");
1267 if (!escaped)
1268 return log_oom();
d7a0f1f4
FS		 1269 if (!filename_is_valid(escaped))
1270 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1271 "Escaped name %s is not a valid filename.",
1272 escaped);
f0aac575 1273
657ee2d8 1274 arg_mount_where = path_join("/run/media/system", escaped);
f0aac575
YW		 1275 if (!arg_mount_where)
1276 return log_oom();
1277
1278 log_debug("Discovered where=%s", arg_mount_where);
450442cf 1279 return 0;
f0aac575
YW		 1280 }
1281
1282 if (stat(loop_dev, &st) < 0)
1283 return log_error_errno(errno, "Can't stat %s: %m", loop_dev);
450442cf 1284
d7a0f1f4
FS		 1285 if (!S_ISBLK(st.st_mode))
1286 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1287 "Invalid file type: %s", loop_dev);
450442cf 1288
930aa88f 1289 r = sd_device_new_from_stat_rdev(&d, &st);
dcd26523
YW		 1290 if (r < 0)
1291 return log_error_errno(r, "Failed to get device from device number: %m");
f0aac575 1292
9e791238
ZJS		 1293 if (sd_device_get_property_value(d, "ID_FS_USAGE", &v) < 0 || !streq(v, "filesystem"))
1294 return log_device_error_errno(d, SYNTHETIC_ERRNO(EINVAL),
1295 "%s does not contain a known file system.", arg_mount_what);
f0aac575
YW		 1296
1297 r = acquire_mount_type(d);
1298 if (r < 0)
1299 return r;
1300
1301 r = acquire_mount_options(d);
1302 if (r < 0)
1303 return r;
1304
95a45a87 1305 r = acquire_mount_where_for_loop_dev(d);
f0aac575
YW		 1306 if (r < 0)
1307 return r;
1308
1309 r = acquire_description(d);
1310 if (r < 0)
1311 return r;
1312
1313 return 0;
1314}
1315
1316static int discover_device(void) {
dcd26523 1317 _cleanup_(sd_device_unrefp) sd_device *d = NULL;
f0aac575
YW		 1318 struct stat st;
1319 const char *v;
1320 int r;
1321
450442cf
LP		 1322 if (stat(arg_mount_what, &st) < 0)
1323 return log_error_errno(errno, "Can't stat %s: %m", arg_mount_what);
1324
f0aac575
YW		 1325 if (S_ISREG(st.st_mode))
1326 return discover_loop_backing_file();
1327
d7a0f1f4
FS		 1328 if (!S_ISBLK(st.st_mode))
1329 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1330 "Invalid file type: %s",
1331 arg_mount_what);
450442cf 1332
930aa88f 1333 r = sd_device_new_from_stat_rdev(&d, &st);
dcd26523
YW		 1334 if (r < 0)
1335 return log_error_errno(r, "Failed to get device from device number: %m");
450442cf 1336
d7a0f1f4
FS		 1337 if (sd_device_get_property_value(d, "ID_FS_USAGE", &v) < 0 || !streq(v, "filesystem"))
1338 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1339 "%s does not contain a known file system.",
1340 arg_mount_what);
450442cf
LP		 1341
1342 r = acquire_mount_type(d);
1343 if (r < 0)
1344 return r;
1345
1346 r = acquire_mount_options(d);
1347 if (r < 0)
1348 return r;
1349
1350 r = acquire_mount_where(d);
1351 if (r < 0)
1352 return r;
1353
1354 r = acquire_description(d);
1355 if (r < 0)
1356 return r;
1357
1358 r = acquire_removable(d);
1359 if (r < 0)
1360 return r;
1361
1362 return 0;
1363}
1364
1365enum {
1366 COLUMN_NODE,
1367 COLUMN_PATH,
1368 COLUMN_MODEL,
1369 COLUMN_WWN,
1370 COLUMN_FSTYPE,
1371 COLUMN_LABEL,
1372 COLUMN_UUID,
1373 _COLUMN_MAX,
1374};
1375
450442cf 1376static int list_devices(void) {
dcd26523 1377 _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
6ae6ea55 1378 _cleanup_(table_unrefp) Table *table = NULL;
dcd26523 1379 sd_device *d;
450442cf
LP		 1380 unsigned c;
1381 int r;
1382
dcd26523
YW		 1383 r = sd_device_enumerator_new(&e);
1384 if (r < 0)
450442cf
LP		 1385 return log_oom();
1386
dcd26523 1387 r = sd_device_enumerator_add_match_subsystem(e, "block", true);
450442cf
LP		 1388 if (r < 0)
1389 return log_error_errno(r, "Failed to add block match: %m");
1390
dcd26523 1391 r = sd_device_enumerator_add_match_property(e, "ID_FS_USAGE", "filesystem");
450442cf
LP		 1392 if (r < 0)
1393 return log_error_errno(r, "Failed to add property match: %m");
1394
6ae6ea55
YW		 1395 table = table_new("NODE", "PATH", "MODEL", "WWN", "TYPE", "LABEL", "UUID");
1396 if (!table)
1397 return log_oom();
450442cf 1398
a362c069
YW		 1399 if (arg_full)
1400 table_set_width(table, 0);
1401
ef1e0b9a 1402 r = table_set_sort(table, (size_t) 0);
6ae6ea55
YW		 1403 if (r < 0)
1404 return log_error_errno(r, "Failed to set sort index: %m");
450442cf 1405
a5279634
YW		 1406 table_set_header(table, arg_legend);
1407
6ae6ea55 1408 FOREACH_DEVICE(e, d) {
450442cf 1409 for (c = 0; c < _COLUMN_MAX; c++) {
6fd667e5 1410 const char *x = NULL;
450442cf
LP		 1411
1412 switch (c) {
1413
1414 case COLUMN_NODE:
dcd26523 1415 (void) sd_device_get_devname(d, &x);
450442cf
LP		 1416 break;
1417
1418 case COLUMN_PATH:
dcd26523 1419 (void) sd_device_get_property_value(d, "ID_PATH", &x);
450442cf
LP		 1420 break;
1421
1422 case COLUMN_MODEL:
1423 x = get_model(d);
1424 break;
1425
1426 case COLUMN_WWN:
dcd26523 1427 (void) sd_device_get_property_value(d, "ID_WWN", &x);
450442cf
LP		 1428 break;
1429
1430 case COLUMN_FSTYPE:
dcd26523 1431 (void) sd_device_get_property_value(d, "ID_FS_TYPE", &x);
450442cf
LP		 1432 break;
1433
1434 case COLUMN_LABEL:
1435 x = get_label(d);
1436 break;
1437
1438 case COLUMN_UUID:
dcd26523 1439 (void) sd_device_get_property_value(d, "ID_FS_UUID", &x);
450442cf
LP		 1440 break;
1441 }
1442
6ae6ea55
YW		 1443 r = table_add_cell(table, NULL, c == COLUMN_NODE ? TABLE_PATH : TABLE_STRING, strna(x));
1444 if (r < 0)
bd17fa8c 1445 return table_log_add_error(r);
450442cf
LP		 1446 }
1447 }
1448
384c2c32 1449 pager_open(arg_pager_flags);
450442cf 1450
6ae6ea55
YW		 1451 r = table_print(table, NULL);
1452 if (r < 0)
4b6607d9 1453 return table_log_print_error(r);
450442cf 1454
6ae6ea55 1455 return 0;
450442cf
LP		 1456}
1457
f2fae6fb
YW		 1458static int run(int argc, char* argv[]) {
1459 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
450442cf
LP		 1460 int r;
1461
1a043959 1462 log_show_color(true);
450442cf
LP		 1463 log_parse_environment();
1464 log_open();
1465
1466 r = parse_argv(argc, argv);
1467 if (r <= 0)
f2fae6fb 1468 return r;
450442cf 1469
f2fae6fb
YW		 1470 if (arg_action == ACTION_LIST)
1471 return list_devices();
450442cf 1472
9017f5d8 1473 r = bus_connect_transport_systemd(arg_transport, arg_host, arg_user, &bus);
f2fae6fb 1474 if (r < 0)
10a7340a 1475 return bus_log_connect_error(r, arg_transport);
9017f5d8 1476
f2fae6fb
YW		 1477 if (arg_action == ACTION_UMOUNT)
1478 return action_umount(bus, argc, argv);
9017f5d8 1479
c15ab81e 1480 if ((!arg_mount_type || fstype_is_blockdev_backed(arg_mount_type))
d7a0f1f4
FS		 1481 && !path_is_normalized(arg_mount_what))
1482 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1483 "Path contains non-normalized components: %s",
1484 arg_mount_what);
f0aac575
YW		 1485
1486 if (arg_discover) {
1487 r = discover_device();
1488 if (r < 0)
f2fae6fb 1489 return r;
f0aac575
YW		 1490 }
1491
d7a0f1f4
FS		 1492 if (!arg_mount_where)
1493 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1494 "Can't figure out where to mount %s.",
1495 arg_mount_what);
450442cf 1496
d7a0f1f4
FS		 1497 if (path_equal(arg_mount_where, "/"))
1498 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1499 "Refusing to operate on root directory.");
450442cf 1500
d7a0f1f4
FS		 1501 if (!path_is_normalized(arg_mount_where))
1502 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1503 "Path contains non-normalized components: %s",
1504 arg_mount_where);
450442cf
LP		 1505
1506 if (streq_ptr(arg_mount_type, "auto"))
1507 arg_mount_type = mfree(arg_mount_type);
1508 if (streq_ptr(arg_mount_options, "defaults"))
1509 arg_mount_options = mfree(arg_mount_options);
1510
1511 if (!is_device_path(arg_mount_what))
1512 arg_fsck = false;
1513
1514 if (arg_fsck && arg_mount_type && arg_transport == BUS_TRANSPORT_LOCAL) {
13556724 1515 r = fsck_exists_for_fstype(arg_mount_type);
450442cf
LP		 1516 if (r < 0)
1517 log_warning_errno(r, "Couldn't determine whether fsck for %s exists, proceeding anyway.", arg_mount_type);
1518 else if (r == 0) {
1519 log_debug("Disabling file system check as fsck for %s doesn't exist.", arg_mount_type);
1520 arg_fsck = false; /* fsck doesn't exist, let's not attempt it */
1521 }
1522 }
1523
e09fc884
ZJS		 1524 /* The kernel (properly) refuses mounting file systems with unknown uid=,gid= options,
1525 * but not for all filesystem types. Let's try to catch the cases where the option
1526 * would be used if the file system does not support it. It is also possible to
1527 * autodetect the file system, but that's only possible with disk-based file systems
1528 * which incidentally seem to be implemented more carefully and reject unknown options,
1529 * so it's probably OK that we do the check only when the type is specified.
1530 */
1531 if (arg_mount_type &&
1532 !streq(arg_mount_type, "auto") &&
1533 arg_uid != UID_INVALID &&
d7a0f1f4
FS		 1534 !fstype_can_uid_gid(arg_mount_type))
1535 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
1536 "File system type %s is not known to support uid=/gid=, refusing.",
1537 arg_mount_type);
e09fc884 1538
450442cf
LP		 1539 switch (arg_action) {
1540
1541 case ACTION_MOUNT:
1542 case ACTION_DEFAULT:
1543 r = start_transient_mount(bus, argv + optind);
1544 break;
1545
1546 case ACTION_AUTOMOUNT:
1547 r = start_transient_automount(bus, argv + optind);
1548 break;
1549
1550 default:
04499a70 1551 assert_not_reached();
450442cf
LP		 1552 }
1553
f2fae6fb 1554 return r;
450442cf 1555}
f2fae6fb
YW		 1556
1557DEFINE_MAIN_FUNCTION(run);
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