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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" |
f461a28d | 13 | #include "chase.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" |
3cc7a9fd | 38 | #include "udev-util.h" |
9269296d | 39 | #include "umask-util.h" |
89ada3ba | 40 | #include "unit-def.h" |
450442cf | 41 | #include "unit-name.h" |
e09fc884 | 42 | #include "user-util.h" |
450442cf LP |
43 | |
44 | enum { | |
45 | ACTION_DEFAULT, | |
46 | ACTION_MOUNT, | |
47 | ACTION_AUTOMOUNT, | |
c37fb55b | 48 | ACTION_UMOUNT, |
450442cf LP |
49 | ACTION_LIST, |
50 | } arg_action = ACTION_DEFAULT; | |
51 | ||
52 | static bool arg_no_block = false; | |
0221d68a | 53 | static PagerFlags arg_pager_flags = 0; |
a5279634 | 54 | static bool arg_legend = true; |
a362c069 | 55 | static bool arg_full = false; |
450442cf LP |
56 | static bool arg_ask_password = true; |
57 | static bool arg_quiet = false; | |
58 | static BusTransport arg_transport = BUS_TRANSPORT_LOCAL; | |
4870133b | 59 | static RuntimeScope arg_runtime_scope = RUNTIME_SCOPE_SYSTEM; |
450442cf LP |
60 | static const char *arg_host = NULL; |
61 | static bool arg_discover = false; | |
62 | static char *arg_mount_what = NULL; | |
63 | static char *arg_mount_where = NULL; | |
64 | static char *arg_mount_type = NULL; | |
65 | static char *arg_mount_options = NULL; | |
66 | static char *arg_description = NULL; | |
67 | static char **arg_property = NULL; | |
68 | static usec_t arg_timeout_idle = USEC_INFINITY; | |
69 | static bool arg_timeout_idle_set = false; | |
70 | static char **arg_automount_property = NULL; | |
71 | static int arg_bind_device = -1; | |
e09fc884 ZJS |
72 | static uid_t arg_uid = UID_INVALID; |
73 | static gid_t arg_gid = GID_INVALID; | |
450442cf | 74 | static bool arg_fsck = true; |
dc336483 | 75 | static bool arg_aggressive_gc = false; |
2322c6c7 | 76 | static bool arg_tmpfs = false; |
450442cf | 77 | |
f2fae6fb YW |
78 | STATIC_DESTRUCTOR_REGISTER(arg_mount_what, freep); |
79 | STATIC_DESTRUCTOR_REGISTER(arg_mount_where, freep); | |
80 | STATIC_DESTRUCTOR_REGISTER(arg_mount_type, freep); | |
81 | STATIC_DESTRUCTOR_REGISTER(arg_mount_options, freep); | |
82 | STATIC_DESTRUCTOR_REGISTER(arg_description, freep); | |
83 | STATIC_DESTRUCTOR_REGISTER(arg_property, strv_freep); | |
84 | STATIC_DESTRUCTOR_REGISTER(arg_automount_property, strv_freep); | |
85 | ||
2322c6c7 | 86 | static int parse_where(const char *input, char **ret_where) { |
2322c6c7 LB |
87 | int r; |
88 | ||
89 | assert(input); | |
90 | assert(ret_where); | |
91 | ||
92 | if (arg_transport == BUS_TRANSPORT_LOCAL) { | |
660087dc | 93 | r = chase(input, NULL, CHASE_NONEXISTENT, ret_where, NULL); |
2322c6c7 LB |
94 | if (r < 0) |
95 | return log_error_errno(r, "Failed to make path %s absolute: %m", input); | |
96 | } else { | |
660087dc | 97 | if (!path_is_absolute(input)) |
2322c6c7 LB |
98 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
99 | "Path must be absolute when operating remotely: %s", | |
660087dc ZJS |
100 | input); |
101 | ||
102 | r = path_simplify_alloc(input, ret_where); | |
103 | if (r < 0) | |
104 | return log_error_errno(r, "Failed to simplify path %s: %m", input); | |
2322c6c7 LB |
105 | } |
106 | ||
2322c6c7 LB |
107 | return 0; |
108 | } | |
109 | ||
37ec0fdd LP |
110 | static int help(void) { |
111 | _cleanup_free_ char *link = NULL; | |
112 | int r; | |
113 | ||
114 | r = terminal_urlify_man("systemd-mount", "1", &link); | |
115 | if (r < 0) | |
116 | return log_oom(); | |
117 | ||
9017f5d8 | 118 | printf("systemd-mount [OPTIONS...] WHAT [WHERE]\n" |
2322c6c7 | 119 | "systemd-mount [OPTIONS...] --tmpfs [NAME] WHERE\n" |
9017f5d8 YW |
120 | "systemd-mount [OPTIONS...] --list\n" |
121 | "%s [OPTIONS...] %sWHAT|WHERE...\n\n" | |
450442cf LP |
122 | "Establish a mount or auto-mount point transiently.\n\n" |
123 | " -h --help Show this help\n" | |
124 | " --version Show package version\n" | |
125 | " --no-block Do not wait until operation finished\n" | |
126 | " --no-pager Do not pipe output into a pager\n" | |
a5279634 | 127 | " --no-legend Do not show the headers\n" |
a362c069 | 128 | " -l --full Do not ellipsize output\n" |
450442cf LP |
129 | " --no-ask-password Do not prompt for password\n" |
130 | " -q --quiet Suppress information messages during runtime\n" | |
131 | " --user Run as user unit\n" | |
132 | " -H --host=[USER@]HOST Operate on remote host\n" | |
133 | " -M --machine=CONTAINER Operate on local container\n" | |
134 | " --discover Discover mount device metadata\n" | |
135 | " -t --type=TYPE File system type\n" | |
136 | " -o --options=OPTIONS Mount options\n" | |
e09fc884 | 137 | " --owner=USER Add uid= and gid= options for USER\n" |
450442cf LP |
138 | " --fsck=no Don't run file system check before mount\n" |
139 | " --description=TEXT Description for unit\n" | |
140 | " -p --property=NAME=VALUE Set mount unit property\n" | |
141 | " -A --automount=BOOL Create an auto-mount point\n" | |
142 | " --timeout-idle-sec=SEC Specify automount idle timeout\n" | |
143 | " --automount-property=NAME=VALUE\n" | |
144 | " Set automount unit property\n" | |
145 | " --bind-device Bind automount unit to device\n" | |
146 | " --list List mountable block devices\n" | |
dc336483 | 147 | " -u --umount Unmount mount points\n" |
37ec0fdd | 148 | " -G --collect Unload unit after it stopped, even when failed\n" |
2322c6c7 | 149 | " -T --tmpfs Create a new tmpfs on the mount point\n" |
bc556335 DDM |
150 | "\nSee the %s for details.\n", |
151 | program_invocation_short_name, | |
152 | streq(program_invocation_short_name, "systemd-umount") ? "" : "--umount ", | |
153 | link); | |
37ec0fdd LP |
154 | |
155 | return 0; | |
450442cf LP |
156 | } |
157 | ||
158 | static int parse_argv(int argc, char *argv[]) { | |
159 | ||
160 | enum { | |
161 | ARG_VERSION = 0x100, | |
162 | ARG_NO_BLOCK, | |
163 | ARG_NO_PAGER, | |
a5279634 | 164 | ARG_NO_LEGEND, |
450442cf LP |
165 | ARG_NO_ASK_PASSWORD, |
166 | ARG_USER, | |
167 | ARG_SYSTEM, | |
168 | ARG_DISCOVER, | |
169 | ARG_MOUNT_TYPE, | |
170 | ARG_MOUNT_OPTIONS, | |
e09fc884 | 171 | ARG_OWNER, |
450442cf LP |
172 | ARG_FSCK, |
173 | ARG_DESCRIPTION, | |
174 | ARG_TIMEOUT_IDLE, | |
175 | ARG_AUTOMOUNT, | |
176 | ARG_AUTOMOUNT_PROPERTY, | |
177 | ARG_BIND_DEVICE, | |
178 | ARG_LIST, | |
179 | }; | |
180 | ||
181 | static const struct option options[] = { | |
182 | { "help", no_argument, NULL, 'h' }, | |
183 | { "version", no_argument, NULL, ARG_VERSION }, | |
184 | { "no-block", no_argument, NULL, ARG_NO_BLOCK }, | |
185 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
a5279634 | 186 | { "no-legend", no_argument, NULL, ARG_NO_LEGEND }, |
a362c069 | 187 | { "full", no_argument, NULL, 'l' }, |
450442cf LP |
188 | { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, |
189 | { "quiet", no_argument, NULL, 'q' }, | |
190 | { "user", no_argument, NULL, ARG_USER }, | |
191 | { "system", no_argument, NULL, ARG_SYSTEM }, | |
192 | { "host", required_argument, NULL, 'H' }, | |
193 | { "machine", required_argument, NULL, 'M' }, | |
194 | { "discover", no_argument, NULL, ARG_DISCOVER }, | |
195 | { "type", required_argument, NULL, 't' }, | |
196 | { "options", required_argument, NULL, 'o' }, | |
e09fc884 | 197 | { "owner", required_argument, NULL, ARG_OWNER }, |
0f923832 | 198 | { "fsck", required_argument, NULL, ARG_FSCK }, |
450442cf LP |
199 | { "description", required_argument, NULL, ARG_DESCRIPTION }, |
200 | { "property", required_argument, NULL, 'p' }, | |
201 | { "automount", required_argument, NULL, ARG_AUTOMOUNT }, | |
202 | { "timeout-idle-sec", required_argument, NULL, ARG_TIMEOUT_IDLE }, | |
203 | { "automount-property", required_argument, NULL, ARG_AUTOMOUNT_PROPERTY }, | |
204 | { "bind-device", no_argument, NULL, ARG_BIND_DEVICE }, | |
205 | { "list", no_argument, NULL, ARG_LIST }, | |
c37fb55b | 206 | { "umount", no_argument, NULL, 'u' }, |
52a1e91e | 207 | { "unmount", no_argument, NULL, 'u' }, /* Compat spelling */ |
dc336483 | 208 | { "collect", no_argument, NULL, 'G' }, |
2322c6c7 | 209 | { "tmpfs", no_argument, NULL, 'T' }, |
450442cf LP |
210 | {}, |
211 | }; | |
212 | ||
213 | int r, c; | |
214 | ||
215 | assert(argc >= 0); | |
216 | assert(argv); | |
217 | ||
2306d177 LP |
218 | if (invoked_as(argv, "systemd-umount")) |
219 | arg_action = ACTION_UMOUNT; | |
c37fb55b | 220 | |
2322c6c7 | 221 | while ((c = getopt_long(argc, argv, "hqH:M:t:o:p:AuGlT", options, NULL)) >= 0) |
450442cf LP |
222 | |
223 | switch (c) { | |
224 | ||
225 | case 'h': | |
37ec0fdd | 226 | return help(); |
450442cf LP |
227 | |
228 | case ARG_VERSION: | |
229 | return version(); | |
230 | ||
231 | case ARG_NO_BLOCK: | |
232 | arg_no_block = true; | |
233 | break; | |
234 | ||
235 | case ARG_NO_PAGER: | |
0221d68a | 236 | arg_pager_flags |= PAGER_DISABLE; |
450442cf LP |
237 | break; |
238 | ||
a5279634 YW |
239 | case ARG_NO_LEGEND: |
240 | arg_legend = false; | |
241 | break; | |
242 | ||
a362c069 YW |
243 | case 'l': |
244 | arg_full = true; | |
245 | break; | |
246 | ||
450442cf LP |
247 | case ARG_NO_ASK_PASSWORD: |
248 | arg_ask_password = false; | |
249 | break; | |
250 | ||
251 | case 'q': | |
252 | arg_quiet = true; | |
253 | break; | |
254 | ||
255 | case ARG_USER: | |
4870133b | 256 | arg_runtime_scope = RUNTIME_SCOPE_USER; |
450442cf LP |
257 | break; |
258 | ||
259 | case ARG_SYSTEM: | |
4870133b | 260 | arg_runtime_scope = RUNTIME_SCOPE_SYSTEM; |
450442cf LP |
261 | break; |
262 | ||
263 | case 'H': | |
264 | arg_transport = BUS_TRANSPORT_REMOTE; | |
265 | arg_host = optarg; | |
266 | break; | |
267 | ||
268 | case 'M': | |
269 | arg_transport = BUS_TRANSPORT_MACHINE; | |
270 | arg_host = optarg; | |
271 | break; | |
272 | ||
273 | case ARG_DISCOVER: | |
274 | arg_discover = true; | |
275 | break; | |
276 | ||
277 | case 't': | |
b3f9c17a YW |
278 | r = free_and_strdup_warn(&arg_mount_type, optarg); |
279 | if (r < 0) | |
280 | return r; | |
450442cf LP |
281 | break; |
282 | ||
283 | case 'o': | |
b3f9c17a YW |
284 | r = free_and_strdup_warn(&arg_mount_options, optarg); |
285 | if (r < 0) | |
286 | return r; | |
450442cf LP |
287 | break; |
288 | ||
e09fc884 ZJS |
289 | case ARG_OWNER: { |
290 | const char *user = optarg; | |
291 | ||
fafff8f1 | 292 | r = get_user_creds(&user, &arg_uid, &arg_gid, NULL, NULL, 0); |
e09fc884 ZJS |
293 | if (r < 0) |
294 | return log_error_errno(r, | |
295 | r == -EBADMSG ? "UID or GID of user %s are invalid." | |
296 | : "Cannot use \"%s\" as owner: %m", | |
297 | optarg); | |
298 | break; | |
299 | } | |
300 | ||
450442cf | 301 | case ARG_FSCK: |
599c7c54 | 302 | r = parse_boolean_argument("--fsck=", optarg, &arg_fsck); |
450442cf | 303 | if (r < 0) |
599c7c54 | 304 | return r; |
450442cf LP |
305 | break; |
306 | ||
307 | case ARG_DESCRIPTION: | |
b3f9c17a YW |
308 | r = free_and_strdup_warn(&arg_description, optarg); |
309 | if (r < 0) | |
310 | return r; | |
450442cf LP |
311 | break; |
312 | ||
313 | case 'p': | |
314 | if (strv_extend(&arg_property, optarg) < 0) | |
315 | return log_oom(); | |
316 | ||
317 | break; | |
318 | ||
319 | case 'A': | |
320 | arg_action = ACTION_AUTOMOUNT; | |
321 | break; | |
322 | ||
323 | case ARG_AUTOMOUNT: | |
c3470872 | 324 | r = parse_boolean_argument("--automount=", optarg, NULL); |
450442cf | 325 | if (r < 0) |
c3470872 | 326 | return r; |
450442cf LP |
327 | |
328 | arg_action = r ? ACTION_AUTOMOUNT : ACTION_MOUNT; | |
329 | break; | |
330 | ||
331 | case ARG_TIMEOUT_IDLE: | |
332 | r = parse_sec(optarg, &arg_timeout_idle); | |
333 | if (r < 0) | |
334 | return log_error_errno(r, "Failed to parse timeout: %s", optarg); | |
335 | ||
336 | break; | |
337 | ||
338 | case ARG_AUTOMOUNT_PROPERTY: | |
339 | if (strv_extend(&arg_automount_property, optarg) < 0) | |
340 | return log_oom(); | |
341 | ||
342 | break; | |
343 | ||
344 | case ARG_BIND_DEVICE: | |
345 | arg_bind_device = true; | |
346 | break; | |
347 | ||
348 | case ARG_LIST: | |
349 | arg_action = ACTION_LIST; | |
350 | break; | |
351 | ||
c37fb55b LR |
352 | case 'u': |
353 | arg_action = ACTION_UMOUNT; | |
354 | break; | |
355 | ||
dc336483 YW |
356 | case 'G': |
357 | arg_aggressive_gc = true; | |
358 | break; | |
359 | ||
2322c6c7 LB |
360 | case 'T': |
361 | arg_tmpfs = true; | |
362 | break; | |
363 | ||
450442cf LP |
364 | case '?': |
365 | return -EINVAL; | |
366 | ||
367 | default: | |
04499a70 | 368 | assert_not_reached(); |
450442cf LP |
369 | } |
370 | ||
4870133b | 371 | if (arg_runtime_scope == RUNTIME_SCOPE_USER) { |
966f3a24 LP |
372 | arg_ask_password = false; |
373 | ||
4870133b LP |
374 | if (arg_transport != BUS_TRANSPORT_LOCAL) |
375 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
376 | "Execution in user context is not supported on non-local systems."); | |
377 | } | |
450442cf LP |
378 | |
379 | if (arg_action == ACTION_LIST) { | |
baaa35ad ZJS |
380 | if (optind < argc) |
381 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
382 | "Too many arguments."); | |
450442cf | 383 | |
baaa35ad ZJS |
384 | if (arg_transport != BUS_TRANSPORT_LOCAL) |
385 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
386 | "Listing devices only supported locally."); | |
9017f5d8 | 387 | } else if (arg_action == ACTION_UMOUNT) { |
baaa35ad ZJS |
388 | if (optind >= argc) |
389 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
390 | "At least one argument required."); | |
9017f5d8 | 391 | |
857127f1 ZJS |
392 | if (arg_transport != BUS_TRANSPORT_LOCAL) |
393 | for (int i = optind; i < argc; i++) | |
394 | if (!path_is_absolute(argv[i])) | |
baaa35ad | 395 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
2322c6c7 LB |
396 | "Path must be absolute when operating remotely: %s", |
397 | argv[i]); | |
450442cf | 398 | } else { |
baaa35ad ZJS |
399 | if (optind >= argc) |
400 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
401 | "At least one argument required."); | |
450442cf | 402 | |
baaa35ad ZJS |
403 | if (argc > optind+2) |
404 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
52a1e91e | 405 | "More than two arguments are not allowed."); |
450442cf | 406 | |
2322c6c7 LB |
407 | if (arg_tmpfs) { |
408 | if (argc <= optind+1) { | |
409 | arg_mount_what = strdup("tmpfs"); | |
410 | if (!arg_mount_what) | |
411 | return log_oom(); | |
e2be442e | 412 | |
2322c6c7 LB |
413 | r = parse_where(argv[optind], &arg_mount_where); |
414 | if (r < 0) | |
415 | return r; | |
416 | } else { | |
417 | arg_mount_what = strdup(argv[optind]); | |
418 | if (!arg_mount_what) | |
419 | return log_oom(); | |
420 | } | |
450442cf | 421 | |
2322c6c7 LB |
422 | if (!strv_contains(arg_property, "Type=tmpfs") && |
423 | strv_extend(&arg_property, "Type=tmpfs") < 0) | |
afde5b16 | 424 | return log_oom(); |
afde5b16 | 425 | } else { |
2322c6c7 LB |
426 | if (arg_mount_type && !fstype_is_blockdev_backed(arg_mount_type)) { |
427 | arg_mount_what = strdup(argv[optind]); | |
428 | if (!arg_mount_what) | |
429 | return log_oom(); | |
afde5b16 | 430 | |
2322c6c7 LB |
431 | } else if (arg_transport == BUS_TRANSPORT_LOCAL) { |
432 | _cleanup_free_ char *u = NULL; | |
afde5b16 | 433 | |
2322c6c7 LB |
434 | u = fstab_node_to_udev_node(argv[optind]); |
435 | if (!u) | |
436 | return log_oom(); | |
afde5b16 | 437 | |
2322c6c7 | 438 | r = chase(u, NULL, 0, &arg_mount_what, NULL); |
afde5b16 | 439 | if (r < 0) |
2322c6c7 | 440 | return log_error_errno(r, "Failed to make path %s absolute: %m", u); |
afde5b16 | 441 | |
660087dc ZJS |
442 | } else { |
443 | if (!path_is_absolute(argv[optind])) | |
baaa35ad | 444 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
2322c6c7 | 445 | "Path must be absolute when operating remotely: %s", |
660087dc ZJS |
446 | argv[optind]); |
447 | ||
448 | r = path_simplify_alloc(argv[optind], &arg_mount_what); | |
449 | if (r < 0) | |
450 | return log_error_errno(r, "Failed to simplify path: %m"); | |
afde5b16 | 451 | } |
2322c6c7 LB |
452 | } |
453 | ||
454 | if (argc > optind+1) { | |
455 | r = parse_where(argv[optind+1], &arg_mount_where); | |
456 | if (r < 0) | |
457 | return r; | |
458 | } else if (!arg_tmpfs) | |
450442cf LP |
459 | arg_discover = true; |
460 | ||
baaa35ad ZJS |
461 | if (arg_discover && arg_transport != BUS_TRANSPORT_LOCAL) |
462 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
463 | "Automatic mount location discovery is only supported locally."); | |
450442cf LP |
464 | } |
465 | ||
466 | return 1; | |
467 | } | |
468 | ||
89ada3ba | 469 | static int transient_unit_set_properties(sd_bus_message *m, UnitType t, char **properties) { |
450442cf LP |
470 | int r; |
471 | ||
05b4d3b5 AK |
472 | if (!isempty(arg_description)) { |
473 | r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description); | |
474 | if (r < 0) | |
475 | return r; | |
476 | } | |
450442cf LP |
477 | |
478 | if (arg_bind_device && is_device_path(arg_mount_what)) { | |
479 | _cleanup_free_ char *device_unit = NULL; | |
480 | ||
481 | r = unit_name_from_path(arg_mount_what, ".device", &device_unit); | |
482 | if (r < 0) | |
483 | return r; | |
484 | ||
485 | r = sd_bus_message_append(m, "(sv)(sv)", | |
486 | "After", "as", 1, device_unit, | |
487 | "BindsTo", "as", 1, device_unit); | |
488 | if (r < 0) | |
489 | return r; | |
490 | } | |
491 | ||
dc336483 YW |
492 | if (arg_aggressive_gc) { |
493 | r = sd_bus_message_append(m, "(sv)", "CollectMode", "s", "inactive-or-failed"); | |
494 | if (r < 0) | |
495 | return r; | |
496 | } | |
497 | ||
89ada3ba | 498 | r = bus_append_unit_property_assignment_many(m, t, properties); |
450442cf LP |
499 | if (r < 0) |
500 | return r; | |
501 | ||
502 | return 0; | |
503 | } | |
504 | ||
505 | static int transient_mount_set_properties(sd_bus_message *m) { | |
506 | int r; | |
507 | ||
508 | assert(m); | |
509 | ||
89ada3ba | 510 | r = transient_unit_set_properties(m, UNIT_MOUNT, arg_property); |
450442cf LP |
511 | if (r < 0) |
512 | return r; | |
513 | ||
514 | if (arg_mount_what) { | |
515 | r = sd_bus_message_append(m, "(sv)", "What", "s", arg_mount_what); | |
516 | if (r < 0) | |
517 | return r; | |
518 | } | |
519 | ||
520 | if (arg_mount_type) { | |
521 | r = sd_bus_message_append(m, "(sv)", "Type", "s", arg_mount_type); | |
522 | if (r < 0) | |
523 | return r; | |
524 | } | |
525 | ||
9269296d ZJS |
526 | _cleanup_free_ char *options = NULL; |
527 | ||
e09fc884 ZJS |
528 | /* Prepend uid=…,gid=… if arg_uid is set */ |
529 | if (arg_uid != UID_INVALID) { | |
9269296d ZJS |
530 | r = strextendf_with_separator(&options, ",", |
531 | "uid="UID_FMT",gid="GID_FMT, arg_uid, arg_gid); | |
450442cf | 532 | if (r < 0) |
9269296d | 533 | return r; |
450442cf LP |
534 | } |
535 | ||
9269296d ZJS |
536 | /* Override the default for tmpfs mounts. The kernel sets the sticky bit on the root directory by |
537 | * default. This makes sense for the case when the user does 'mount -t tmpfs tmpfs /tmp', but less so | |
538 | * for other directories. | |
539 | * | |
540 | * Let's also set some reasonable limits. We use the current umask, to match what a command to create | |
541 | * directory would use, e.g. mkdir. */ | |
542 | if (arg_tmpfs) { | |
543 | mode_t mask; | |
544 | ||
545 | r = get_process_umask(0, &mask); | |
546 | if (r < 0) | |
547 | return r; | |
548 | ||
549 | assert((mask & ~0777) == 0); | |
550 | r = strextendf_with_separator(&options, ",", | |
551 | "mode=0%o,nodev,nosuid%s", 0777 & ~mask, NESTED_TMPFS_LIMITS); | |
552 | if (r < 0) | |
553 | return r; | |
554 | } | |
555 | ||
556 | if (arg_mount_options) | |
557 | if (!strextend_with_separator(&options, ",", arg_mount_options)) | |
82007efa | 558 | return -ENOMEM; |
e09fc884 | 559 | |
9269296d ZJS |
560 | if (options) { |
561 | log_debug("Using mount options: %s", options); | |
562 | r = sd_bus_message_append(m, "(sv)", "Options", "s", options); | |
e09fc884 ZJS |
563 | if (r < 0) |
564 | return r; | |
565 | } else | |
566 | log_debug("Not using any mount options"); | |
567 | ||
450442cf LP |
568 | if (arg_fsck) { |
569 | _cleanup_free_ char *fsck = NULL; | |
570 | ||
571 | r = unit_name_from_path_instance("systemd-fsck", arg_mount_what, ".service", &fsck); | |
572 | if (r < 0) | |
573 | return r; | |
574 | ||
575 | r = sd_bus_message_append(m, | |
576 | "(sv)(sv)", | |
577 | "Requires", "as", 1, fsck, | |
578 | "After", "as", 1, fsck); | |
579 | if (r < 0) | |
580 | return r; | |
581 | } | |
582 | ||
583 | return 0; | |
584 | } | |
585 | ||
586 | static int transient_automount_set_properties(sd_bus_message *m) { | |
587 | int r; | |
588 | ||
589 | assert(m); | |
590 | ||
89ada3ba | 591 | r = transient_unit_set_properties(m, UNIT_AUTOMOUNT, arg_automount_property); |
450442cf LP |
592 | if (r < 0) |
593 | return r; | |
594 | ||
595 | if (arg_timeout_idle != USEC_INFINITY) { | |
596 | r = sd_bus_message_append(m, "(sv)", "TimeoutIdleUSec", "t", arg_timeout_idle); | |
597 | if (r < 0) | |
598 | return r; | |
599 | } | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | static int start_transient_mount( | |
605 | sd_bus *bus, | |
606 | char **argv) { | |
607 | ||
608 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; | |
609 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
610 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL; | |
611 | _cleanup_free_ char *mount_unit = NULL; | |
612 | int r; | |
613 | ||
614 | if (!arg_no_block) { | |
615 | r = bus_wait_for_jobs_new(bus, &w); | |
616 | if (r < 0) | |
617 | return log_error_errno(r, "Could not watch jobs: %m"); | |
618 | } | |
619 | ||
620 | r = unit_name_from_path(arg_mount_where, ".mount", &mount_unit); | |
621 | if (r < 0) | |
622 | return log_error_errno(r, "Failed to make mount unit name: %m"); | |
623 | ||
92cb8ebc | 624 | r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, "StartTransientUnit"); |
450442cf LP |
625 | if (r < 0) |
626 | return bus_log_create_error(r); | |
627 | ||
628 | r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password); | |
629 | if (r < 0) | |
630 | return bus_log_create_error(r); | |
631 | ||
632 | /* Name and mode */ | |
633 | r = sd_bus_message_append(m, "ss", mount_unit, "fail"); | |
634 | if (r < 0) | |
635 | return bus_log_create_error(r); | |
636 | ||
637 | /* Properties */ | |
638 | r = sd_bus_message_open_container(m, 'a', "(sv)"); | |
639 | if (r < 0) | |
640 | return bus_log_create_error(r); | |
641 | ||
642 | r = transient_mount_set_properties(m); | |
643 | if (r < 0) | |
644 | return bus_log_create_error(r); | |
645 | ||
646 | r = sd_bus_message_close_container(m); | |
647 | if (r < 0) | |
648 | return bus_log_create_error(r); | |
649 | ||
650 | /* Auxiliary units */ | |
651 | r = sd_bus_message_append(m, "a(sa(sv))", 0); | |
652 | if (r < 0) | |
653 | return bus_log_create_error(r); | |
654 | ||
8a4b13c5 | 655 | polkit_agent_open_if_enabled(arg_transport, arg_ask_password); |
450442cf LP |
656 | |
657 | r = sd_bus_call(bus, m, 0, &error, &reply); | |
658 | if (r < 0) | |
659 | return log_error_errno(r, "Failed to start transient mount unit: %s", bus_error_message(&error, r)); | |
660 | ||
661 | if (w) { | |
662 | const char *object; | |
663 | ||
664 | r = sd_bus_message_read(reply, "o", &object); | |
665 | if (r < 0) | |
666 | return bus_log_parse_error(r); | |
667 | ||
86980de6 | 668 | r = bus_wait_for_jobs_one(w, object, arg_quiet, NULL); |
450442cf LP |
669 | if (r < 0) |
670 | return r; | |
671 | } | |
672 | ||
673 | if (!arg_quiet) | |
674 | log_info("Started unit %s%s%s for mount point: %s%s%s", | |
675 | ansi_highlight(), mount_unit, ansi_normal(), | |
676 | ansi_highlight(), arg_mount_where, ansi_normal()); | |
677 | ||
678 | return 0; | |
679 | } | |
680 | ||
681 | static int start_transient_automount( | |
682 | sd_bus *bus, | |
683 | char **argv) { | |
684 | ||
685 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; | |
686 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
687 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL; | |
688 | _cleanup_free_ char *automount_unit = NULL, *mount_unit = NULL; | |
689 | int r; | |
690 | ||
691 | if (!arg_no_block) { | |
692 | r = bus_wait_for_jobs_new(bus, &w); | |
693 | if (r < 0) | |
694 | return log_error_errno(r, "Could not watch jobs: %m"); | |
695 | } | |
696 | ||
697 | r = unit_name_from_path(arg_mount_where, ".automount", &automount_unit); | |
698 | if (r < 0) | |
699 | return log_error_errno(r, "Failed to make automount unit name: %m"); | |
700 | ||
701 | r = unit_name_from_path(arg_mount_where, ".mount", &mount_unit); | |
702 | if (r < 0) | |
703 | return log_error_errno(r, "Failed to make mount unit name: %m"); | |
704 | ||
92cb8ebc | 705 | r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, "StartTransientUnit"); |
450442cf LP |
706 | if (r < 0) |
707 | return bus_log_create_error(r); | |
708 | ||
709 | r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password); | |
710 | if (r < 0) | |
711 | return bus_log_create_error(r); | |
712 | ||
713 | /* Name and mode */ | |
714 | r = sd_bus_message_append(m, "ss", automount_unit, "fail"); | |
715 | if (r < 0) | |
716 | return bus_log_create_error(r); | |
717 | ||
718 | /* Properties */ | |
719 | r = sd_bus_message_open_container(m, 'a', "(sv)"); | |
720 | if (r < 0) | |
721 | return bus_log_create_error(r); | |
722 | ||
723 | r = transient_automount_set_properties(m); | |
724 | if (r < 0) | |
725 | return bus_log_create_error(r); | |
726 | ||
727 | r = sd_bus_message_close_container(m); | |
728 | if (r < 0) | |
729 | return bus_log_create_error(r); | |
730 | ||
731 | /* Auxiliary units */ | |
732 | r = sd_bus_message_open_container(m, 'a', "(sa(sv))"); | |
733 | if (r < 0) | |
734 | return bus_log_create_error(r); | |
735 | ||
736 | r = sd_bus_message_open_container(m, 'r', "sa(sv)"); | |
737 | if (r < 0) | |
738 | return bus_log_create_error(r); | |
739 | ||
740 | r = sd_bus_message_append(m, "s", mount_unit); | |
741 | if (r < 0) | |
742 | return bus_log_create_error(r); | |
743 | ||
744 | r = sd_bus_message_open_container(m, 'a', "(sv)"); | |
745 | if (r < 0) | |
746 | return bus_log_create_error(r); | |
747 | ||
748 | r = transient_mount_set_properties(m); | |
749 | if (r < 0) | |
750 | return bus_log_create_error(r); | |
751 | ||
752 | r = sd_bus_message_close_container(m); | |
753 | if (r < 0) | |
754 | return bus_log_create_error(r); | |
755 | ||
756 | r = sd_bus_message_close_container(m); | |
757 | if (r < 0) | |
758 | return bus_log_create_error(r); | |
759 | ||
760 | r = sd_bus_message_close_container(m); | |
761 | if (r < 0) | |
762 | return bus_log_create_error(r); | |
763 | ||
8a4b13c5 | 764 | polkit_agent_open_if_enabled(arg_transport, arg_ask_password); |
450442cf LP |
765 | |
766 | r = sd_bus_call(bus, m, 0, &error, &reply); | |
767 | if (r < 0) | |
768 | return log_error_errno(r, "Failed to start transient automount unit: %s", bus_error_message(&error, r)); | |
769 | ||
770 | if (w) { | |
771 | const char *object; | |
772 | ||
773 | r = sd_bus_message_read(reply, "o", &object); | |
774 | if (r < 0) | |
775 | return bus_log_parse_error(r); | |
776 | ||
86980de6 | 777 | r = bus_wait_for_jobs_one(w, object, arg_quiet, NULL); |
450442cf LP |
778 | if (r < 0) |
779 | return r; | |
780 | } | |
781 | ||
782 | if (!arg_quiet) | |
783 | log_info("Started unit %s%s%s for mount point: %s%s%s", | |
784 | ansi_highlight(), automount_unit, ansi_normal(), | |
785 | ansi_highlight(), arg_mount_where, ansi_normal()); | |
786 | ||
787 | return 0; | |
788 | } | |
789 | ||
f0aac575 | 790 | static int find_mount_points(const char *what, char ***list) { |
7d991d48 ZJS |
791 | _cleanup_(mnt_free_tablep) struct libmnt_table *table = NULL; |
792 | _cleanup_(mnt_free_iterp) struct libmnt_iter *iter = NULL; | |
f0aac575 | 793 | _cleanup_strv_free_ char **l = NULL; |
319a4f4b | 794 | size_t n = 0; |
7d991d48 | 795 | int r; |
f0aac575 YW |
796 | |
797 | assert(what); | |
798 | assert(list); | |
799 | ||
800 | /* Returns all mount points obtained from /proc/self/mountinfo in *list, | |
801 | * and the number of mount points as return value. */ | |
802 | ||
e2857b3d | 803 | r = libmount_parse(NULL, NULL, &table, &iter); |
7d991d48 ZJS |
804 | if (r < 0) |
805 | return log_error_errno(r, "Failed to parse /proc/self/mountinfo: %m"); | |
f0aac575 YW |
806 | |
807 | for (;;) { | |
7d991d48 ZJS |
808 | struct libmnt_fs *fs; |
809 | const char *source, *target; | |
f0aac575 | 810 | |
7d991d48 ZJS |
811 | r = mnt_table_next_fs(table, iter, &fs); |
812 | if (r == 1) | |
813 | break; | |
814 | if (r < 0) | |
815 | return log_error_errno(r, "Failed to get next entry from /proc/self/mountinfo: %m"); | |
f0aac575 | 816 | |
7d991d48 ZJS |
817 | source = mnt_fs_get_source(fs); |
818 | target = mnt_fs_get_target(fs); | |
819 | if (!source || !target) | |
f0aac575 YW |
820 | continue; |
821 | ||
7d991d48 | 822 | if (!path_equal(source, what)) |
f0aac575 YW |
823 | continue; |
824 | ||
825 | /* one extra slot is needed for the terminating NULL */ | |
319a4f4b | 826 | if (!GREEDY_REALLOC0(l, n + 2)) |
f0aac575 YW |
827 | return log_oom(); |
828 | ||
7d991d48 ZJS |
829 | l[n] = strdup(target); |
830 | if (!l[n]) | |
831 | return log_oom(); | |
832 | n++; | |
f0aac575 YW |
833 | } |
834 | ||
319a4f4b | 835 | if (!GREEDY_REALLOC0(l, n + 1)) |
290843c3 LP |
836 | return log_oom(); |
837 | ||
ae2a15bc | 838 | *list = TAKE_PTR(l); |
f0aac575 YW |
839 | return n; |
840 | } | |
841 | ||
1480c231 YW |
842 | static int find_loop_device(const char *backing_file, sd_device **ret) { |
843 | _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL; | |
1480c231 | 844 | int r; |
f0aac575 YW |
845 | |
846 | assert(backing_file); | |
1480c231 | 847 | assert(ret); |
f0aac575 | 848 | |
1480c231 YW |
849 | r = sd_device_enumerator_new(&e); |
850 | if (r < 0) | |
851 | return log_oom(); | |
f0aac575 | 852 | |
1480c231 YW |
853 | r = sd_device_enumerator_add_match_subsystem(e, "block", /* match = */ true); |
854 | if (r < 0) | |
855 | return log_error_errno(r, "Failed to add subsystem match: %m"); | |
f0aac575 | 856 | |
1480c231 YW |
857 | r = sd_device_enumerator_add_match_property(e, "ID_FS_USAGE", "filesystem"); |
858 | if (r < 0) | |
859 | return log_error_errno(r, "Failed to add property match: %m"); | |
f0aac575 | 860 | |
1480c231 YW |
861 | r = sd_device_enumerator_add_match_sysname(e, "loop*"); |
862 | if (r < 0) | |
863 | return log_error_errno(r, "Failed to add sysname match: %m"); | |
f0aac575 | 864 | |
1480c231 YW |
865 | r = sd_device_enumerator_add_match_sysattr(e, "loop/backing_file", /* value = */ NULL, /* match = */ true); |
866 | if (r < 0) | |
867 | return log_error_errno(r, "Failed to add sysattr match: %m"); | |
868 | ||
869 | FOREACH_DEVICE(e, dev) { | |
870 | const char *s; | |
f0aac575 | 871 | |
1480c231 | 872 | r = sd_device_get_sysattr_value(dev, "loop/backing_file", &s); |
a53dceb7 | 873 | if (r < 0) { |
1480c231 | 874 | log_device_debug_errno(dev, r, "Failed to read \"loop/backing_file\" sysattr, ignoring: %m"); |
f0aac575 | 875 | continue; |
a53dceb7 | 876 | } |
f0aac575 | 877 | |
563e6846 | 878 | if (inode_same(s, backing_file, 0) <= 0) |
f0aac575 YW |
879 | continue; |
880 | ||
1480c231 YW |
881 | *ret = sd_device_ref(dev); |
882 | return 0; | |
f0aac575 YW |
883 | } |
884 | ||
1480c231 | 885 | return -ENXIO; |
f0aac575 YW |
886 | } |
887 | ||
c37fb55b LR |
888 | static int stop_mount( |
889 | sd_bus *bus, | |
9017f5d8 | 890 | const char *where, |
6f6165bf | 891 | const char *suffix) { |
c37fb55b LR |
892 | |
893 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; | |
894 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
895 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL; | |
896 | _cleanup_free_ char *mount_unit = NULL; | |
897 | int r; | |
898 | ||
899 | if (!arg_no_block) { | |
900 | r = bus_wait_for_jobs_new(bus, &w); | |
901 | if (r < 0) | |
902 | return log_error_errno(r, "Could not watch jobs: %m"); | |
903 | } | |
904 | ||
9017f5d8 | 905 | r = unit_name_from_path(where, suffix, &mount_unit); |
c37fb55b | 906 | if (r < 0) |
6442c210 | 907 | return log_error_errno(r, "Failed to make %s unit name from path %s: %m", suffix + 1, where); |
c37fb55b | 908 | |
92cb8ebc | 909 | r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, "StopUnit"); |
c37fb55b LR |
910 | if (r < 0) |
911 | return bus_log_create_error(r); | |
912 | ||
913 | r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password); | |
914 | if (r < 0) | |
915 | return bus_log_create_error(r); | |
916 | ||
917 | /* Name and mode */ | |
918 | r = sd_bus_message_append(m, "ss", mount_unit, "fail"); | |
919 | if (r < 0) | |
920 | return bus_log_create_error(r); | |
921 | ||
8a4b13c5 | 922 | polkit_agent_open_if_enabled(arg_transport, arg_ask_password); |
c37fb55b LR |
923 | |
924 | r = sd_bus_call(bus, m, 0, &error, &reply); | |
6442c210 YW |
925 | if (r < 0) { |
926 | if (streq(suffix, ".automount") && | |
927 | sd_bus_error_has_name(&error, "org.freedesktop.systemd1.NoSuchUnit")) | |
928 | return 0; | |
929 | return log_error_errno(r, "Failed to stop %s unit: %s", suffix + 1, bus_error_message(&error, r)); | |
930 | } | |
c37fb55b LR |
931 | |
932 | if (w) { | |
933 | const char *object; | |
934 | ||
935 | r = sd_bus_message_read(reply, "o", &object); | |
936 | if (r < 0) | |
937 | return bus_log_parse_error(r); | |
938 | ||
86980de6 | 939 | r = bus_wait_for_jobs_one(w, object, arg_quiet, NULL); |
c37fb55b LR |
940 | if (r < 0) |
941 | return r; | |
942 | } | |
943 | ||
944 | if (!arg_quiet) | |
945 | log_info("Stopped unit %s%s%s for mount point: %s%s%s", | |
946 | ansi_highlight(), mount_unit, ansi_normal(), | |
9017f5d8 | 947 | ansi_highlight(), where, ansi_normal()); |
c37fb55b LR |
948 | |
949 | return 0; | |
950 | } | |
951 | ||
952 | static int stop_mounts( | |
953 | sd_bus *bus, | |
6f6165bf | 954 | const char *where) { |
c37fb55b LR |
955 | |
956 | int r; | |
957 | ||
baaa35ad ZJS |
958 | if (path_equal(where, "/")) |
959 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
960 | "Refusing to operate on root directory: %s", where); | |
9017f5d8 | 961 | |
baaa35ad ZJS |
962 | if (!path_is_normalized(where)) |
963 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
964 | "Path contains non-normalized components: %s", where); | |
9017f5d8 | 965 | |
6f6165bf | 966 | r = stop_mount(bus, where, ".mount"); |
c37fb55b LR |
967 | if (r < 0) |
968 | return r; | |
969 | ||
6f6165bf | 970 | r = stop_mount(bus, where, ".automount"); |
c37fb55b LR |
971 | if (r < 0) |
972 | return r; | |
973 | ||
974 | return 0; | |
975 | } | |
976 | ||
961d08ca | 977 | static int umount_by_device(sd_bus *bus, sd_device *dev) { |
f0aac575 | 978 | _cleanup_strv_free_ char **list = NULL; |
9017f5d8 | 979 | const char *v; |
961d08ca | 980 | int r, ret = 0; |
9017f5d8 | 981 | |
961d08ca YW |
982 | assert(bus); |
983 | assert(dev); | |
9017f5d8 | 984 | |
6e07f600 | 985 | if (sd_device_get_property_value(dev, "SYSTEMD_MOUNT_WHERE", &v) >= 0) |
961d08ca | 986 | ret = stop_mounts(bus, v); |
9017f5d8 | 987 | |
961d08ca | 988 | r = sd_device_get_devname(dev, &v); |
dcd26523 | 989 | if (r < 0) |
961d08ca | 990 | return r; |
9017f5d8 | 991 | |
961d08ca | 992 | r = find_mount_points(v, &list); |
f0aac575 YW |
993 | if (r < 0) |
994 | return r; | |
995 | ||
961d08ca | 996 | STRV_FOREACH(l, list) { |
f0aac575 | 997 | r = stop_mounts(bus, *l); |
6f6165bf | 998 | if (r < 0) |
961d08ca | 999 | ret = r; |
9017f5d8 YW |
1000 | } |
1001 | ||
961d08ca YW |
1002 | return ret; |
1003 | } | |
1004 | ||
1005 | static int umount_by_device_node(sd_bus *bus, const char *node) { | |
1006 | _cleanup_(sd_device_unrefp) sd_device *dev = NULL; | |
1007 | const char *v; | |
1008 | int r; | |
1009 | ||
1010 | assert(bus); | |
1011 | assert(node); | |
1012 | ||
1013 | r = sd_device_new_from_devname(&dev, node); | |
1014 | if (r < 0) | |
1015 | return log_error_errno(r, "Failed to get device from %s: %m", node); | |
1016 | ||
1017 | r = sd_device_get_property_value(dev, "ID_FS_USAGE", &v); | |
1018 | if (r < 0) | |
1019 | return log_device_error_errno(dev, r, "Failed to get \"ID_FS_USAGE\" device property: %m"); | |
1020 | ||
1021 | if (!streq(v, "filesystem")) | |
1022 | return log_device_error_errno(dev, SYNTHETIC_ERRNO(EINVAL), | |
1023 | "%s does not contain a known file system.", node); | |
1024 | ||
1025 | return umount_by_device(bus, dev); | |
6f6165bf YW |
1026 | } |
1027 | ||
1028 | static int umount_loop(sd_bus *bus, const char *backing_file) { | |
1480c231 | 1029 | _cleanup_(sd_device_unrefp) sd_device *dev = NULL; |
f0aac575 | 1030 | int r; |
6f6165bf YW |
1031 | |
1032 | assert(backing_file); | |
1033 | ||
1480c231 | 1034 | r = find_loop_device(backing_file, &dev); |
f0aac575 | 1035 | if (r < 0) |
aa46fa64 | 1036 | return log_error_errno(r, r == -ENXIO ? "File %s is not mounted." : "Can't get loop device for %s: %m", backing_file); |
6f6165bf | 1037 | |
1480c231 | 1038 | return umount_by_device(bus, dev); |
9017f5d8 YW |
1039 | } |
1040 | ||
1041 | static int action_umount( | |
1042 | sd_bus *bus, | |
1043 | int argc, | |
1044 | char **argv) { | |
1045 | ||
857127f1 | 1046 | int r, r2 = 0; |
9017f5d8 | 1047 | |
3747daa2 | 1048 | if (arg_transport != BUS_TRANSPORT_LOCAL) { |
857127f1 | 1049 | for (int i = optind; i < argc; i++) { |
3747daa2 YW |
1050 | _cleanup_free_ char *p = NULL; |
1051 | ||
660087dc ZJS |
1052 | r = path_simplify_alloc(argv[i], &p); |
1053 | if (r < 0) | |
1054 | return r; | |
3747daa2 YW |
1055 | |
1056 | r = stop_mounts(bus, p); | |
1057 | if (r < 0) | |
1058 | r2 = r; | |
1059 | } | |
1060 | return r2; | |
1061 | } | |
1062 | ||
857127f1 | 1063 | for (int i = optind; i < argc; i++) { |
5bc9f949 | 1064 | _cleanup_free_ char *u = NULL, *p = NULL; |
6f6165bf | 1065 | struct stat st; |
9017f5d8 YW |
1066 | |
1067 | u = fstab_node_to_udev_node(argv[i]); | |
1068 | if (!u) | |
1069 | return log_oom(); | |
9017f5d8 | 1070 | |
f461a28d | 1071 | r = chase(u, NULL, 0, &p, NULL); |
9017f5d8 | 1072 | if (r < 0) { |
02a8bd65 | 1073 | r2 = log_error_errno(r, "Failed to make path %s absolute: %m", argv[i]); |
9017f5d8 YW |
1074 | continue; |
1075 | } | |
1076 | ||
6f6165bf | 1077 | if (stat(p, &st) < 0) |
02a8bd65 | 1078 | return log_error_errno(errno, "Can't stat %s (from %s): %m", p, argv[i]); |
9017f5d8 | 1079 | |
6f6165bf | 1080 | if (S_ISBLK(st.st_mode)) |
961d08ca | 1081 | r = umount_by_device_node(bus, p); |
6f6165bf YW |
1082 | else if (S_ISREG(st.st_mode)) |
1083 | r = umount_loop(bus, p); | |
1084 | else if (S_ISDIR(st.st_mode)) | |
1085 | r = stop_mounts(bus, p); | |
1086 | else { | |
02a8bd65 | 1087 | log_error("Invalid file type: %s (from %s)", p, argv[i]); |
6f6165bf YW |
1088 | r = -EINVAL; |
1089 | } | |
1090 | ||
1091 | if (r < 0) | |
9017f5d8 YW |
1092 | r2 = r; |
1093 | } | |
1094 | ||
1095 | return r2; | |
1096 | } | |
1097 | ||
dcd26523 | 1098 | static int acquire_mount_type(sd_device *d) { |
450442cf LP |
1099 | const char *v; |
1100 | ||
1101 | assert(d); | |
1102 | ||
1103 | if (arg_mount_type) | |
1104 | return 0; | |
1105 | ||
dcd26523 | 1106 | if (sd_device_get_property_value(d, "ID_FS_TYPE", &v) < 0) |
450442cf LP |
1107 | return 0; |
1108 | ||
1109 | arg_mount_type = strdup(v); | |
1110 | if (!arg_mount_type) | |
1111 | return log_oom(); | |
1112 | ||
1113 | log_debug("Discovered type=%s", arg_mount_type); | |
1114 | return 1; | |
1115 | } | |
1116 | ||
dcd26523 | 1117 | static int acquire_mount_options(sd_device *d) { |
450442cf LP |
1118 | const char *v; |
1119 | ||
dcd26523 YW |
1120 | assert(d); |
1121 | ||
450442cf LP |
1122 | if (arg_mount_options) |
1123 | return 0; | |
1124 | ||
dcd26523 | 1125 | if (sd_device_get_property_value(d, "SYSTEMD_MOUNT_OPTIONS", &v) < 0) |
450442cf LP |
1126 | return 0; |
1127 | ||
1128 | arg_mount_options = strdup(v); | |
1129 | if (!arg_mount_options) | |
1130 | return log_oom(); | |
1131 | ||
1132 | log_debug("Discovered options=%s", arg_mount_options); | |
1133 | return 1; | |
1134 | } | |
1135 | ||
dcd26523 | 1136 | static const char* get_label(sd_device *d) { |
450442cf LP |
1137 | const char *label; |
1138 | ||
1139 | assert(d); | |
1140 | ||
dcd26523 YW |
1141 | if (sd_device_get_property_value(d, "ID_FS_LABEL", &label) >= 0) |
1142 | return label; | |
1143 | ||
1144 | if (sd_device_get_property_value(d, "ID_PART_ENTRY_NAME", &label) >= 0) | |
450442cf LP |
1145 | return label; |
1146 | ||
dcd26523 | 1147 | return NULL; |
450442cf LP |
1148 | } |
1149 | ||
dcd26523 | 1150 | static int acquire_mount_where(sd_device *d) { |
450442cf | 1151 | const char *v; |
451f0dba | 1152 | int r; |
450442cf LP |
1153 | |
1154 | if (arg_mount_where) | |
1155 | return 0; | |
1156 | ||
dcd26523 | 1157 | if (sd_device_get_property_value(d, "SYSTEMD_MOUNT_WHERE", &v) < 0) { |
451f0dba | 1158 | _cleanup_free_ char *escaped = NULL, *devname_bn = NULL; |
450442cf LP |
1159 | const char *name; |
1160 | ||
1161 | name = get_label(d); | |
1162 | if (!name) | |
3cc7a9fd | 1163 | (void) device_get_model_string(d, &name); |
450442cf LP |
1164 | if (!name) { |
1165 | const char *dn; | |
1166 | ||
dcd26523 | 1167 | if (sd_device_get_devname(d, &dn) < 0) |
450442cf LP |
1168 | return 0; |
1169 | ||
451f0dba LP |
1170 | r = path_extract_filename(dn, &devname_bn); |
1171 | if (r < 0) | |
1172 | return log_error_errno(r, "Failed to extract file name from '%s': %m", dn); | |
1173 | ||
1174 | name = devname_bn; | |
450442cf LP |
1175 | } |
1176 | ||
1177 | escaped = xescape(name, "\\"); | |
f0aac575 YW |
1178 | if (!escaped) |
1179 | return log_oom(); | |
450442cf LP |
1180 | if (!filename_is_valid(escaped)) |
1181 | return 0; | |
1182 | ||
657ee2d8 | 1183 | arg_mount_where = path_join("/run/media/system", escaped); |
450442cf LP |
1184 | } else |
1185 | arg_mount_where = strdup(v); | |
1186 | ||
1187 | if (!arg_mount_where) | |
1188 | return log_oom(); | |
1189 | ||
1190 | log_debug("Discovered where=%s", arg_mount_where); | |
1191 | return 1; | |
1192 | } | |
1193 | ||
95a45a87 | 1194 | static int acquire_mount_where_for_loop_dev(sd_device *dev) { |
f0aac575 | 1195 | _cleanup_strv_free_ char **list = NULL; |
95a45a87 | 1196 | const char *node; |
f0aac575 YW |
1197 | int r; |
1198 | ||
95a45a87 YW |
1199 | assert(dev); |
1200 | ||
f0aac575 YW |
1201 | if (arg_mount_where) |
1202 | return 0; | |
1203 | ||
95a45a87 | 1204 | r = sd_device_get_devname(dev, &node); |
f0aac575 YW |
1205 | if (r < 0) |
1206 | return r; | |
95a45a87 YW |
1207 | |
1208 | r = find_mount_points(node, &list); | |
1209 | if (r < 0) | |
1210 | return r; | |
1211 | if (r == 0) | |
1212 | return log_device_error_errno(dev, SYNTHETIC_ERRNO(EINVAL), | |
1213 | "Can't find mount point of %s. It is expected that %s is already mounted on a place.", | |
1214 | node, node); | |
1215 | if (r >= 2) | |
1216 | return log_device_error_errno(dev, SYNTHETIC_ERRNO(EINVAL), | |
1217 | "%s is mounted on %d places. It is expected that %s is mounted on a place.", | |
1218 | node, r, node); | |
f0aac575 YW |
1219 | |
1220 | arg_mount_where = strdup(list[0]); | |
1221 | if (!arg_mount_where) | |
1222 | return log_oom(); | |
1223 | ||
1224 | log_debug("Discovered where=%s", arg_mount_where); | |
1225 | return 1; | |
1226 | } | |
1227 | ||
dcd26523 | 1228 | static int acquire_description(sd_device *d) { |
3cc7a9fd | 1229 | const char *model = NULL, *label; |
450442cf LP |
1230 | |
1231 | if (arg_description) | |
1232 | return 0; | |
1233 | ||
3cc7a9fd | 1234 | (void) device_get_model_string(d, &model); |
450442cf LP |
1235 | |
1236 | label = get_label(d); | |
1237 | if (!label) | |
dcd26523 | 1238 | (void) sd_device_get_property_value(d, "ID_PART_ENTRY_NUMBER", &label); |
450442cf LP |
1239 | |
1240 | if (model && label) | |
605405c6 | 1241 | arg_description = strjoin(model, " ", label); |
450442cf LP |
1242 | else if (label) |
1243 | arg_description = strdup(label); | |
1244 | else if (model) | |
1245 | arg_description = strdup(model); | |
1246 | else | |
05b4d3b5 | 1247 | return 0; |
450442cf LP |
1248 | |
1249 | if (!arg_description) | |
1250 | return log_oom(); | |
1251 | ||
1252 | log_debug("Discovered description=%s", arg_description); | |
1253 | return 1; | |
1254 | } | |
1255 | ||
dcd26523 | 1256 | static int acquire_removable(sd_device *d) { |
450442cf LP |
1257 | const char *v; |
1258 | ||
1259 | /* Shortcut this if there's no reason to check it */ | |
1260 | if (arg_action != ACTION_DEFAULT && arg_timeout_idle_set && arg_bind_device >= 0) | |
1261 | return 0; | |
1262 | ||
1263 | for (;;) { | |
1f22fc38 | 1264 | if (sd_device_get_sysattr_value(d, "removable", &v) >= 0) |
450442cf LP |
1265 | break; |
1266 | ||
dcd26523 | 1267 | if (sd_device_get_parent(d, &d) < 0) |
450442cf LP |
1268 | return 0; |
1269 | ||
dcd26523 | 1270 | if (sd_device_get_subsystem(d, &v) < 0 || !streq(v, "block")) |
450442cf LP |
1271 | return 0; |
1272 | } | |
1273 | ||
1274 | if (parse_boolean(v) <= 0) | |
1275 | return 0; | |
1276 | ||
1277 | log_debug("Discovered removable device."); | |
1278 | ||
1279 | if (arg_action == ACTION_DEFAULT) { | |
1280 | log_debug("Automatically turning on automount."); | |
1281 | arg_action = ACTION_AUTOMOUNT; | |
1282 | } | |
1283 | ||
1284 | if (!arg_timeout_idle_set) { | |
1285 | log_debug("Setting idle timeout to 1s."); | |
1286 | arg_timeout_idle = USEC_PER_SEC; | |
1287 | } | |
1288 | ||
1289 | if (arg_bind_device < 0) { | |
1290 | log_debug("Binding automount unit to device."); | |
1291 | arg_bind_device = true; | |
1292 | } | |
1293 | ||
1294 | return 1; | |
1295 | } | |
1296 | ||
f0aac575 | 1297 | static int discover_loop_backing_file(void) { |
dcd26523 | 1298 | _cleanup_(sd_device_unrefp) sd_device *d = NULL; |
450442cf LP |
1299 | int r; |
1300 | ||
1480c231 | 1301 | r = find_loop_device(arg_mount_what, &d); |
aa46fa64 | 1302 | if (r < 0 && r != -ENXIO) |
f0aac575 YW |
1303 | return log_error_errno(errno, "Can't get loop device for %s: %m", arg_mount_what); |
1304 | ||
aa46fa64 | 1305 | if (r == -ENXIO) { |
451f0dba | 1306 | _cleanup_free_ char *escaped = NULL, *bn = NULL; |
f0aac575 YW |
1307 | |
1308 | if (arg_mount_where) | |
1309 | return 0; | |
1310 | ||
451f0dba LP |
1311 | r = path_extract_filename(arg_mount_what, &bn); |
1312 | if (r < 0) | |
1313 | return log_error_errno(r, "Failed to extract file name from backing file path '%s': %m", arg_mount_what); | |
1314 | ||
1315 | escaped = xescape(bn, "\\"); | |
f0aac575 YW |
1316 | if (!escaped) |
1317 | return log_oom(); | |
d7a0f1f4 FS |
1318 | if (!filename_is_valid(escaped)) |
1319 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1320 | "Escaped name %s is not a valid filename.", | |
1321 | escaped); | |
f0aac575 | 1322 | |
657ee2d8 | 1323 | arg_mount_where = path_join("/run/media/system", escaped); |
f0aac575 YW |
1324 | if (!arg_mount_where) |
1325 | return log_oom(); | |
1326 | ||
1327 | log_debug("Discovered where=%s", arg_mount_where); | |
450442cf | 1328 | return 0; |
f0aac575 YW |
1329 | } |
1330 | ||
f0aac575 YW |
1331 | r = acquire_mount_type(d); |
1332 | if (r < 0) | |
1333 | return r; | |
1334 | ||
1335 | r = acquire_mount_options(d); | |
1336 | if (r < 0) | |
1337 | return r; | |
1338 | ||
95a45a87 | 1339 | r = acquire_mount_where_for_loop_dev(d); |
f0aac575 YW |
1340 | if (r < 0) |
1341 | return r; | |
1342 | ||
1343 | r = acquire_description(d); | |
1344 | if (r < 0) | |
1345 | return r; | |
1346 | ||
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | static int discover_device(void) { | |
dcd26523 | 1351 | _cleanup_(sd_device_unrefp) sd_device *d = NULL; |
f0aac575 YW |
1352 | struct stat st; |
1353 | const char *v; | |
1354 | int r; | |
1355 | ||
450442cf LP |
1356 | if (stat(arg_mount_what, &st) < 0) |
1357 | return log_error_errno(errno, "Can't stat %s: %m", arg_mount_what); | |
1358 | ||
f0aac575 YW |
1359 | if (S_ISREG(st.st_mode)) |
1360 | return discover_loop_backing_file(); | |
1361 | ||
d7a0f1f4 FS |
1362 | if (!S_ISBLK(st.st_mode)) |
1363 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1364 | "Invalid file type: %s", | |
1365 | arg_mount_what); | |
450442cf | 1366 | |
930aa88f | 1367 | r = sd_device_new_from_stat_rdev(&d, &st); |
dcd26523 YW |
1368 | if (r < 0) |
1369 | return log_error_errno(r, "Failed to get device from device number: %m"); | |
450442cf | 1370 | |
d7a0f1f4 FS |
1371 | if (sd_device_get_property_value(d, "ID_FS_USAGE", &v) < 0 || !streq(v, "filesystem")) |
1372 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1373 | "%s does not contain a known file system.", | |
1374 | arg_mount_what); | |
450442cf LP |
1375 | |
1376 | r = acquire_mount_type(d); | |
1377 | if (r < 0) | |
1378 | return r; | |
1379 | ||
1380 | r = acquire_mount_options(d); | |
1381 | if (r < 0) | |
1382 | return r; | |
1383 | ||
1384 | r = acquire_mount_where(d); | |
1385 | if (r < 0) | |
1386 | return r; | |
1387 | ||
1388 | r = acquire_description(d); | |
1389 | if (r < 0) | |
1390 | return r; | |
1391 | ||
1392 | r = acquire_removable(d); | |
1393 | if (r < 0) | |
1394 | return r; | |
1395 | ||
1396 | return 0; | |
1397 | } | |
1398 | ||
450442cf | 1399 | static int list_devices(void) { |
4cbf9d52 LP |
1400 | enum { |
1401 | COLUMN_NODE, | |
1402 | COLUMN_PATH, | |
1403 | COLUMN_MODEL, | |
1404 | COLUMN_WWN, | |
1405 | COLUMN_FSTYPE, | |
1406 | COLUMN_LABEL, | |
1407 | COLUMN_UUID, | |
1408 | _COLUMN_MAX, | |
1409 | }; | |
1410 | ||
dcd26523 | 1411 | _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL; |
6ae6ea55 | 1412 | _cleanup_(table_unrefp) Table *table = NULL; |
450442cf LP |
1413 | int r; |
1414 | ||
dcd26523 YW |
1415 | r = sd_device_enumerator_new(&e); |
1416 | if (r < 0) | |
450442cf LP |
1417 | return log_oom(); |
1418 | ||
dcd26523 | 1419 | r = sd_device_enumerator_add_match_subsystem(e, "block", true); |
450442cf LP |
1420 | if (r < 0) |
1421 | return log_error_errno(r, "Failed to add block match: %m"); | |
1422 | ||
dcd26523 | 1423 | r = sd_device_enumerator_add_match_property(e, "ID_FS_USAGE", "filesystem"); |
450442cf LP |
1424 | if (r < 0) |
1425 | return log_error_errno(r, "Failed to add property match: %m"); | |
1426 | ||
b86155d0 | 1427 | table = table_new("NODE", "PATH", "MODEL", "WWN", "FSTYPE", "LABEL", "UUID"); |
6ae6ea55 YW |
1428 | if (!table) |
1429 | return log_oom(); | |
450442cf | 1430 | |
a362c069 YW |
1431 | if (arg_full) |
1432 | table_set_width(table, 0); | |
1433 | ||
ef1e0b9a | 1434 | r = table_set_sort(table, (size_t) 0); |
6ae6ea55 YW |
1435 | if (r < 0) |
1436 | return log_error_errno(r, "Failed to set sort index: %m"); | |
450442cf | 1437 | |
a5279634 | 1438 | table_set_header(table, arg_legend); |
40961438 | 1439 | table_set_ersatz_string(table, TABLE_ERSATZ_DASH); |
a5279634 | 1440 | |
6ae6ea55 | 1441 | FOREACH_DEVICE(e, d) { |
857127f1 | 1442 | for (unsigned c = 0; c < _COLUMN_MAX; c++) { |
6fd667e5 | 1443 | const char *x = NULL; |
450442cf LP |
1444 | |
1445 | switch (c) { | |
1446 | ||
1447 | case COLUMN_NODE: | |
dcd26523 | 1448 | (void) sd_device_get_devname(d, &x); |
450442cf LP |
1449 | break; |
1450 | ||
1451 | case COLUMN_PATH: | |
dcd26523 | 1452 | (void) sd_device_get_property_value(d, "ID_PATH", &x); |
450442cf LP |
1453 | break; |
1454 | ||
1455 | case COLUMN_MODEL: | |
3cc7a9fd | 1456 | (void) device_get_model_string(d, &x); |
450442cf LP |
1457 | break; |
1458 | ||
1459 | case COLUMN_WWN: | |
dcd26523 | 1460 | (void) sd_device_get_property_value(d, "ID_WWN", &x); |
450442cf LP |
1461 | break; |
1462 | ||
1463 | case COLUMN_FSTYPE: | |
dcd26523 | 1464 | (void) sd_device_get_property_value(d, "ID_FS_TYPE", &x); |
450442cf LP |
1465 | break; |
1466 | ||
1467 | case COLUMN_LABEL: | |
1468 | x = get_label(d); | |
1469 | break; | |
1470 | ||
1471 | case COLUMN_UUID: | |
dcd26523 | 1472 | (void) sd_device_get_property_value(d, "ID_FS_UUID", &x); |
450442cf LP |
1473 | break; |
1474 | } | |
1475 | ||
40961438 | 1476 | r = table_add_cell(table, NULL, c == COLUMN_NODE ? TABLE_PATH : TABLE_STRING, x); |
6ae6ea55 | 1477 | if (r < 0) |
bd17fa8c | 1478 | return table_log_add_error(r); |
450442cf LP |
1479 | } |
1480 | } | |
1481 | ||
384c2c32 | 1482 | pager_open(arg_pager_flags); |
450442cf | 1483 | |
6ae6ea55 YW |
1484 | r = table_print(table, NULL); |
1485 | if (r < 0) | |
4b6607d9 | 1486 | return table_log_print_error(r); |
450442cf | 1487 | |
6ae6ea55 | 1488 | return 0; |
450442cf LP |
1489 | } |
1490 | ||
f2fae6fb YW |
1491 | static int run(int argc, char* argv[]) { |
1492 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
450442cf LP |
1493 | int r; |
1494 | ||
1a043959 | 1495 | log_show_color(true); |
450442cf LP |
1496 | log_parse_environment(); |
1497 | log_open(); | |
1498 | ||
1499 | r = parse_argv(argc, argv); | |
1500 | if (r <= 0) | |
f2fae6fb | 1501 | return r; |
450442cf | 1502 | |
f2fae6fb YW |
1503 | if (arg_action == ACTION_LIST) |
1504 | return list_devices(); | |
450442cf | 1505 | |
4870133b | 1506 | r = bus_connect_transport_systemd(arg_transport, arg_host, arg_runtime_scope, &bus); |
f2fae6fb | 1507 | if (r < 0) |
10a7340a | 1508 | return bus_log_connect_error(r, arg_transport); |
9017f5d8 | 1509 | |
f2fae6fb YW |
1510 | if (arg_action == ACTION_UMOUNT) |
1511 | return action_umount(bus, argc, argv); | |
9017f5d8 | 1512 | |
c15ab81e | 1513 | if ((!arg_mount_type || fstype_is_blockdev_backed(arg_mount_type)) |
d7a0f1f4 FS |
1514 | && !path_is_normalized(arg_mount_what)) |
1515 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1516 | "Path contains non-normalized components: %s", | |
1517 | arg_mount_what); | |
f0aac575 YW |
1518 | |
1519 | if (arg_discover) { | |
1520 | r = discover_device(); | |
1521 | if (r < 0) | |
f2fae6fb | 1522 | return r; |
f0aac575 YW |
1523 | } |
1524 | ||
d7a0f1f4 FS |
1525 | if (!arg_mount_where) |
1526 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1527 | "Can't figure out where to mount %s.", | |
1528 | arg_mount_what); | |
450442cf | 1529 | |
d7a0f1f4 FS |
1530 | if (path_equal(arg_mount_where, "/")) |
1531 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1532 | "Refusing to operate on root directory."); | |
450442cf | 1533 | |
d7a0f1f4 FS |
1534 | if (!path_is_normalized(arg_mount_where)) |
1535 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1536 | "Path contains non-normalized components: %s", | |
1537 | arg_mount_where); | |
450442cf LP |
1538 | |
1539 | if (streq_ptr(arg_mount_type, "auto")) | |
1540 | arg_mount_type = mfree(arg_mount_type); | |
1541 | if (streq_ptr(arg_mount_options, "defaults")) | |
1542 | arg_mount_options = mfree(arg_mount_options); | |
1543 | ||
1544 | if (!is_device_path(arg_mount_what)) | |
1545 | arg_fsck = false; | |
1546 | ||
1547 | if (arg_fsck && arg_mount_type && arg_transport == BUS_TRANSPORT_LOCAL) { | |
13556724 | 1548 | r = fsck_exists_for_fstype(arg_mount_type); |
450442cf LP |
1549 | if (r < 0) |
1550 | log_warning_errno(r, "Couldn't determine whether fsck for %s exists, proceeding anyway.", arg_mount_type); | |
1551 | else if (r == 0) { | |
1552 | log_debug("Disabling file system check as fsck for %s doesn't exist.", arg_mount_type); | |
1553 | arg_fsck = false; /* fsck doesn't exist, let's not attempt it */ | |
1554 | } | |
1555 | } | |
1556 | ||
e09fc884 ZJS |
1557 | /* The kernel (properly) refuses mounting file systems with unknown uid=,gid= options, |
1558 | * but not for all filesystem types. Let's try to catch the cases where the option | |
1559 | * would be used if the file system does not support it. It is also possible to | |
1560 | * autodetect the file system, but that's only possible with disk-based file systems | |
1561 | * which incidentally seem to be implemented more carefully and reject unknown options, | |
1562 | * so it's probably OK that we do the check only when the type is specified. | |
1563 | */ | |
1564 | if (arg_mount_type && | |
1565 | !streq(arg_mount_type, "auto") && | |
1566 | arg_uid != UID_INVALID && | |
d7a0f1f4 FS |
1567 | !fstype_can_uid_gid(arg_mount_type)) |
1568 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
1569 | "File system type %s is not known to support uid=/gid=, refusing.", | |
1570 | arg_mount_type); | |
e09fc884 | 1571 | |
450442cf LP |
1572 | switch (arg_action) { |
1573 | ||
1574 | case ACTION_MOUNT: | |
1575 | case ACTION_DEFAULT: | |
1576 | r = start_transient_mount(bus, argv + optind); | |
1577 | break; | |
1578 | ||
1579 | case ACTION_AUTOMOUNT: | |
1580 | r = start_transient_automount(bus, argv + optind); | |
1581 | break; | |
1582 | ||
1583 | default: | |
04499a70 | 1584 | assert_not_reached(); |
450442cf LP |
1585 | } |
1586 | ||
f2fae6fb | 1587 | return r; |
450442cf | 1588 | } |
f2fae6fb YW |
1589 | |
1590 | DEFINE_MAIN_FUNCTION(run); |