Line data Source code
1 : /* SPDX-License-Identifier: LGPL-2.1+ */
2 :
3 : #include "sd-bus.h"
4 :
5 : #include "alloc-util.h"
6 : #include "bpf-firewall.h"
7 : #include "bus-common-errors.h"
8 : #include "cgroup-util.h"
9 : #include "condition.h"
10 : #include "dbus-job.h"
11 : #include "dbus-unit.h"
12 : #include "dbus-util.h"
13 : #include "dbus.h"
14 : #include "fd-util.h"
15 : #include "install.h"
16 : #include "locale-util.h"
17 : #include "log.h"
18 : #include "path-util.h"
19 : #include "process-util.h"
20 : #include "selinux-access.h"
21 : #include "signal-util.h"
22 : #include "special.h"
23 : #include "string-table.h"
24 : #include "string-util.h"
25 : #include "strv.h"
26 : #include "user-util.h"
27 : #include "web-util.h"
28 :
29 0 : static bool unit_can_start_refuse_manual(Unit *u) {
30 0 : return unit_can_start(u) && !u->refuse_manual_start;
31 : }
32 :
33 0 : static bool unit_can_stop_refuse_manual(Unit *u) {
34 0 : return unit_can_stop(u) && !u->refuse_manual_stop;
35 : }
36 :
37 0 : static bool unit_can_isolate_refuse_manual(Unit *u) {
38 0 : return unit_can_isolate(u) && !u->refuse_manual_start;
39 : }
40 :
41 0 : static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_collect_mode, collect_mode, CollectMode);
42 0 : static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_load_state, unit_load_state, UnitLoadState);
43 0 : static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_job_mode, job_mode, JobMode);
44 0 : static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_emergency_action, emergency_action, EmergencyAction);
45 0 : static BUS_DEFINE_PROPERTY_GET(property_get_description, "s", Unit, unit_description);
46 0 : static BUS_DEFINE_PROPERTY_GET2(property_get_active_state, "s", Unit, unit_active_state, unit_active_state_to_string);
47 0 : static BUS_DEFINE_PROPERTY_GET(property_get_sub_state, "s", Unit, unit_sub_state_to_string);
48 0 : static BUS_DEFINE_PROPERTY_GET2(property_get_unit_file_state, "s", Unit, unit_get_unit_file_state, unit_file_state_to_string);
49 0 : static BUS_DEFINE_PROPERTY_GET(property_get_can_reload, "b", Unit, unit_can_reload);
50 0 : static BUS_DEFINE_PROPERTY_GET(property_get_can_start, "b", Unit, unit_can_start_refuse_manual);
51 0 : static BUS_DEFINE_PROPERTY_GET(property_get_can_stop, "b", Unit, unit_can_stop_refuse_manual);
52 0 : static BUS_DEFINE_PROPERTY_GET(property_get_can_isolate, "b", Unit, unit_can_isolate_refuse_manual);
53 0 : static BUS_DEFINE_PROPERTY_GET(property_get_need_daemon_reload, "b", Unit, unit_need_daemon_reload);
54 0 : static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_empty_strv, "as", 0);
55 :
56 0 : static int property_get_can_clean(
57 : sd_bus *bus,
58 : const char *path,
59 : const char *interface,
60 : const char *property,
61 : sd_bus_message *reply,
62 : void *userdata,
63 : sd_bus_error *error) {
64 :
65 0 : Unit *u = userdata;
66 : ExecCleanMask mask;
67 : int r;
68 :
69 0 : assert(bus);
70 0 : assert(reply);
71 :
72 0 : r = unit_can_clean(u, &mask);
73 0 : if (r < 0)
74 0 : return r;
75 :
76 0 : r = sd_bus_message_open_container(reply, 'a', "s");
77 0 : if (r < 0)
78 0 : return r;
79 :
80 0 : for (ExecDirectoryType t = 0; t < _EXEC_DIRECTORY_TYPE_MAX; t++) {
81 0 : if (!FLAGS_SET(mask, 1U << t))
82 0 : continue;
83 :
84 0 : r = sd_bus_message_append(reply, "s", exec_resource_type_to_string(t));
85 0 : if (r < 0)
86 0 : return r;
87 : }
88 :
89 0 : return sd_bus_message_close_container(reply);
90 : }
91 :
92 0 : static int property_get_names(
93 : sd_bus *bus,
94 : const char *path,
95 : const char *interface,
96 : const char *property,
97 : sd_bus_message *reply,
98 : void *userdata,
99 : sd_bus_error *error) {
100 :
101 0 : Set **s = userdata;
102 : Iterator i;
103 : const char *t;
104 : int r;
105 :
106 0 : assert(bus);
107 0 : assert(reply);
108 0 : assert(s);
109 :
110 0 : r = sd_bus_message_open_container(reply, 'a', "s");
111 0 : if (r < 0)
112 0 : return r;
113 :
114 0 : SET_FOREACH(t, *s, i) {
115 0 : r = sd_bus_message_append(reply, "s", t);
116 0 : if (r < 0)
117 0 : return r;
118 : }
119 :
120 0 : return sd_bus_message_close_container(reply);
121 : }
122 :
123 0 : static int property_get_following(
124 : sd_bus *bus,
125 : const char *path,
126 : const char *interface,
127 : const char *property,
128 : sd_bus_message *reply,
129 : void *userdata,
130 : sd_bus_error *error) {
131 :
132 0 : Unit *u = userdata, *f;
133 :
134 0 : assert(bus);
135 0 : assert(reply);
136 0 : assert(u);
137 :
138 0 : f = unit_following(u);
139 0 : return sd_bus_message_append(reply, "s", f ? f->id : NULL);
140 : }
141 :
142 0 : static int property_get_dependencies(
143 : sd_bus *bus,
144 : const char *path,
145 : const char *interface,
146 : const char *property,
147 : sd_bus_message *reply,
148 : void *userdata,
149 : sd_bus_error *error) {
150 :
151 0 : Hashmap **h = userdata;
152 : Iterator j;
153 : Unit *u;
154 : void *v;
155 : int r;
156 :
157 0 : assert(bus);
158 0 : assert(reply);
159 0 : assert(h);
160 :
161 0 : r = sd_bus_message_open_container(reply, 'a', "s");
162 0 : if (r < 0)
163 0 : return r;
164 :
165 0 : HASHMAP_FOREACH_KEY(v, u, *h, j) {
166 0 : r = sd_bus_message_append(reply, "s", u->id);
167 0 : if (r < 0)
168 0 : return r;
169 : }
170 :
171 0 : return sd_bus_message_close_container(reply);
172 : }
173 :
174 0 : static int property_get_requires_mounts_for(
175 : sd_bus *bus,
176 : const char *path,
177 : const char *interface,
178 : const char *property,
179 : sd_bus_message *reply,
180 : void *userdata,
181 : sd_bus_error *error) {
182 :
183 0 : Hashmap **h = userdata;
184 : const char *p;
185 : Iterator j;
186 : void *v;
187 : int r;
188 :
189 0 : assert(bus);
190 0 : assert(reply);
191 0 : assert(h);
192 :
193 0 : r = sd_bus_message_open_container(reply, 'a', "s");
194 0 : if (r < 0)
195 0 : return r;
196 :
197 0 : HASHMAP_FOREACH_KEY(v, p, *h, j) {
198 0 : r = sd_bus_message_append(reply, "s", p);
199 0 : if (r < 0)
200 0 : return r;
201 : }
202 :
203 0 : return sd_bus_message_close_container(reply);
204 : }
205 :
206 0 : static int property_get_unit_file_preset(
207 : sd_bus *bus,
208 : const char *path,
209 : const char *interface,
210 : const char *property,
211 : sd_bus_message *reply,
212 : void *userdata,
213 : sd_bus_error *error) {
214 :
215 0 : Unit *u = userdata;
216 : int r;
217 :
218 0 : assert(bus);
219 0 : assert(reply);
220 0 : assert(u);
221 :
222 0 : r = unit_get_unit_file_preset(u);
223 :
224 0 : return sd_bus_message_append(reply, "s",
225 : r < 0 ? NULL:
226 0 : r > 0 ? "enabled" : "disabled");
227 : }
228 :
229 0 : static int property_get_job(
230 : sd_bus *bus,
231 : const char *path,
232 : const char *interface,
233 : const char *property,
234 : sd_bus_message *reply,
235 : void *userdata,
236 : sd_bus_error *error) {
237 :
238 0 : _cleanup_free_ char *p = NULL;
239 0 : Job **j = userdata;
240 :
241 0 : assert(bus);
242 0 : assert(reply);
243 0 : assert(j);
244 :
245 0 : if (!*j)
246 0 : return sd_bus_message_append(reply, "(uo)", 0, "/");
247 :
248 0 : p = job_dbus_path(*j);
249 0 : if (!p)
250 0 : return -ENOMEM;
251 :
252 0 : return sd_bus_message_append(reply, "(uo)", (*j)->id, p);
253 : }
254 :
255 0 : static int property_get_conditions(
256 : sd_bus *bus,
257 : const char *path,
258 : const char *interface,
259 : const char *property,
260 : sd_bus_message *reply,
261 : void *userdata,
262 : sd_bus_error *error) {
263 :
264 0 : const char *(*to_string)(ConditionType type) = NULL;
265 0 : Condition **list = userdata, *c;
266 : int r;
267 :
268 0 : assert(bus);
269 0 : assert(reply);
270 0 : assert(list);
271 :
272 0 : to_string = streq(property, "Asserts") ? assert_type_to_string : condition_type_to_string;
273 :
274 0 : r = sd_bus_message_open_container(reply, 'a', "(sbbsi)");
275 0 : if (r < 0)
276 0 : return r;
277 :
278 0 : LIST_FOREACH(conditions, c, *list) {
279 : int tristate;
280 :
281 0 : tristate =
282 0 : c->result == CONDITION_UNTESTED ? 0 :
283 0 : c->result == CONDITION_SUCCEEDED ? 1 : -1;
284 :
285 0 : r = sd_bus_message_append(reply, "(sbbsi)",
286 0 : to_string(c->type),
287 0 : c->trigger, c->negate,
288 : c->parameter, tristate);
289 0 : if (r < 0)
290 0 : return r;
291 :
292 : }
293 :
294 0 : return sd_bus_message_close_container(reply);
295 : }
296 :
297 0 : static int property_get_load_error(
298 : sd_bus *bus,
299 : const char *path,
300 : const char *interface,
301 : const char *property,
302 : sd_bus_message *reply,
303 : void *userdata,
304 : sd_bus_error *error) {
305 :
306 0 : _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL;
307 0 : Unit *u = userdata;
308 : int r;
309 :
310 0 : assert(bus);
311 0 : assert(reply);
312 0 : assert(u);
313 :
314 0 : r = bus_unit_validate_load_state(u, &e);
315 0 : if (r < 0)
316 0 : return sd_bus_message_append(reply, "(ss)", e.name, e.message);
317 :
318 0 : return sd_bus_message_append(reply, "(ss)", NULL, NULL);
319 : }
320 :
321 0 : static int bus_verify_manage_units_async_full(
322 : Unit *u,
323 : const char *verb,
324 : int capability,
325 : const char *polkit_message,
326 : bool interactive,
327 : sd_bus_message *call,
328 : sd_bus_error *error) {
329 :
330 0 : const char *details[9] = {
331 0 : "unit", u->id,
332 : "verb", verb,
333 : };
334 :
335 0 : if (polkit_message) {
336 0 : details[4] = "polkit.message";
337 0 : details[5] = polkit_message;
338 0 : details[6] = "polkit.gettext_domain";
339 0 : details[7] = GETTEXT_PACKAGE;
340 : }
341 :
342 0 : return bus_verify_polkit_async(
343 : call,
344 : capability,
345 : "org.freedesktop.systemd1.manage-units",
346 : details,
347 : interactive,
348 : UID_INVALID,
349 0 : &u->manager->polkit_registry,
350 : error);
351 : }
352 :
353 : static const char *const polkit_message_for_job[_JOB_TYPE_MAX] = {
354 : [JOB_START] = N_("Authentication is required to start '$(unit)'."),
355 : [JOB_STOP] = N_("Authentication is required to stop '$(unit)'."),
356 : [JOB_RELOAD] = N_("Authentication is required to reload '$(unit)'."),
357 : [JOB_RESTART] = N_("Authentication is required to restart '$(unit)'."),
358 : [JOB_TRY_RESTART] = N_("Authentication is required to restart '$(unit)'."),
359 : };
360 :
361 0 : int bus_unit_method_start_generic(
362 : sd_bus_message *message,
363 : Unit *u,
364 : JobType job_type,
365 : bool reload_if_possible,
366 : sd_bus_error *error) {
367 :
368 : const char *smode, *verb;
369 : JobMode mode;
370 : int r;
371 :
372 0 : assert(message);
373 0 : assert(u);
374 0 : assert(job_type >= 0 && job_type < _JOB_TYPE_MAX);
375 :
376 0 : r = mac_selinux_unit_access_check(
377 : u, message,
378 : job_type_to_access_method(job_type),
379 : error);
380 0 : if (r < 0)
381 0 : return r;
382 :
383 0 : r = sd_bus_message_read(message, "s", &smode);
384 0 : if (r < 0)
385 0 : return r;
386 :
387 0 : mode = job_mode_from_string(smode);
388 0 : if (mode < 0)
389 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode);
390 :
391 0 : if (reload_if_possible)
392 0 : verb = strjoina("reload-or-", job_type_to_string(job_type));
393 : else
394 0 : verb = job_type_to_string(job_type);
395 :
396 0 : r = bus_verify_manage_units_async_full(
397 : u,
398 : verb,
399 : CAP_SYS_ADMIN,
400 : polkit_message_for_job[job_type],
401 : true,
402 : message,
403 : error);
404 0 : if (r < 0)
405 0 : return r;
406 0 : if (r == 0)
407 0 : return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
408 :
409 0 : return bus_unit_queue_job(message, u, job_type, mode,
410 : reload_if_possible ? BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE : 0, error);
411 : }
412 :
413 0 : static int method_start(sd_bus_message *message, void *userdata, sd_bus_error *error) {
414 0 : return bus_unit_method_start_generic(message, userdata, JOB_START, false, error);
415 : }
416 :
417 0 : static int method_stop(sd_bus_message *message, void *userdata, sd_bus_error *error) {
418 0 : return bus_unit_method_start_generic(message, userdata, JOB_STOP, false, error);
419 : }
420 :
421 0 : static int method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) {
422 0 : return bus_unit_method_start_generic(message, userdata, JOB_RELOAD, false, error);
423 : }
424 :
425 0 : static int method_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) {
426 0 : return bus_unit_method_start_generic(message, userdata, JOB_RESTART, false, error);
427 : }
428 :
429 0 : static int method_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) {
430 0 : return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, false, error);
431 : }
432 :
433 0 : static int method_reload_or_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) {
434 0 : return bus_unit_method_start_generic(message, userdata, JOB_RESTART, true, error);
435 : }
436 :
437 0 : static int method_reload_or_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) {
438 0 : return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, true, error);
439 : }
440 :
441 0 : int bus_unit_method_enqueue_job(sd_bus_message *message, void *userdata, sd_bus_error *error) {
442 0 : BusUnitQueueFlags flags = BUS_UNIT_QUEUE_VERBOSE_REPLY;
443 : const char *jtype, *smode;
444 0 : Unit *u = userdata;
445 : JobType type;
446 : JobMode mode;
447 : int r;
448 :
449 0 : assert(message);
450 0 : assert(u);
451 :
452 0 : r = sd_bus_message_read(message, "ss", &jtype, &smode);
453 0 : if (r < 0)
454 0 : return r;
455 :
456 : /* Parse the two magic reload types "reload-or-…" manually */
457 0 : if (streq(jtype, "reload-or-restart")) {
458 0 : type = JOB_RESTART;
459 0 : flags |= BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE;
460 0 : } else if (streq(jtype, "reload-or-try-restart")) {
461 0 : type = JOB_TRY_RESTART;
462 0 : flags |= BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE;
463 : } else {
464 : /* And the rest generically */
465 0 : type = job_type_from_string(jtype);
466 0 : if (type < 0)
467 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job type %s invalid", jtype);
468 : }
469 :
470 0 : mode = job_mode_from_string(smode);
471 0 : if (mode < 0)
472 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode);
473 :
474 0 : r = mac_selinux_unit_access_check(
475 : u, message,
476 : job_type_to_access_method(type),
477 : error);
478 0 : if (r < 0)
479 0 : return r;
480 :
481 0 : r = bus_verify_manage_units_async_full(
482 : u,
483 : jtype,
484 : CAP_SYS_ADMIN,
485 : polkit_message_for_job[type],
486 : true,
487 : message,
488 : error);
489 0 : if (r < 0)
490 0 : return r;
491 0 : if (r == 0)
492 0 : return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
493 :
494 0 : return bus_unit_queue_job(message, u, type, mode, flags, error);
495 : }
496 :
497 0 : int bus_unit_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) {
498 0 : Unit *u = userdata;
499 : const char *swho;
500 : int32_t signo;
501 : KillWho who;
502 : int r;
503 :
504 0 : assert(message);
505 0 : assert(u);
506 :
507 0 : r = mac_selinux_unit_access_check(u, message, "stop", error);
508 0 : if (r < 0)
509 0 : return r;
510 :
511 0 : r = sd_bus_message_read(message, "si", &swho, &signo);
512 0 : if (r < 0)
513 0 : return r;
514 :
515 0 : if (isempty(swho))
516 0 : who = KILL_ALL;
517 : else {
518 0 : who = kill_who_from_string(swho);
519 0 : if (who < 0)
520 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid who argument %s", swho);
521 : }
522 :
523 0 : if (!SIGNAL_VALID(signo))
524 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Signal number out of range.");
525 :
526 0 : r = bus_verify_manage_units_async_full(
527 : u,
528 : "kill",
529 : CAP_KILL,
530 : N_("Authentication is required to send a UNIX signal to the processes of '$(unit)'."),
531 : true,
532 : message,
533 : error);
534 0 : if (r < 0)
535 0 : return r;
536 0 : if (r == 0)
537 0 : return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
538 :
539 0 : r = unit_kill(u, who, signo, error);
540 0 : if (r < 0)
541 0 : return r;
542 :
543 0 : return sd_bus_reply_method_return(message, NULL);
544 : }
545 :
546 0 : int bus_unit_method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error) {
547 0 : Unit *u = userdata;
548 : int r;
549 :
550 0 : assert(message);
551 0 : assert(u);
552 :
553 0 : r = mac_selinux_unit_access_check(u, message, "reload", error);
554 0 : if (r < 0)
555 0 : return r;
556 :
557 0 : r = bus_verify_manage_units_async_full(
558 : u,
559 : "reset-failed",
560 : CAP_SYS_ADMIN,
561 : N_("Authentication is required to reset the \"failed\" state of '$(unit)'."),
562 : true,
563 : message,
564 : error);
565 0 : if (r < 0)
566 0 : return r;
567 0 : if (r == 0)
568 0 : return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
569 :
570 0 : unit_reset_failed(u);
571 :
572 0 : return sd_bus_reply_method_return(message, NULL);
573 : }
574 :
575 0 : int bus_unit_method_set_properties(sd_bus_message *message, void *userdata, sd_bus_error *error) {
576 0 : Unit *u = userdata;
577 : int runtime, r;
578 :
579 0 : assert(message);
580 0 : assert(u);
581 :
582 0 : r = mac_selinux_unit_access_check(u, message, "start", error);
583 0 : if (r < 0)
584 0 : return r;
585 :
586 0 : r = sd_bus_message_read(message, "b", &runtime);
587 0 : if (r < 0)
588 0 : return r;
589 :
590 0 : r = bus_verify_manage_units_async_full(
591 : u,
592 : "set-property",
593 : CAP_SYS_ADMIN,
594 : N_("Authentication is required to set properties on '$(unit)'."),
595 : true,
596 : message,
597 : error);
598 0 : if (r < 0)
599 0 : return r;
600 0 : if (r == 0)
601 0 : return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
602 :
603 0 : r = bus_unit_set_properties(u, message, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, error);
604 0 : if (r < 0)
605 0 : return r;
606 :
607 0 : return sd_bus_reply_method_return(message, NULL);
608 : }
609 :
610 0 : int bus_unit_method_ref(sd_bus_message *message, void *userdata, sd_bus_error *error) {
611 0 : Unit *u = userdata;
612 : int r;
613 :
614 0 : assert(message);
615 0 : assert(u);
616 :
617 0 : r = mac_selinux_unit_access_check(u, message, "start", error);
618 0 : if (r < 0)
619 0 : return r;
620 :
621 0 : r = bus_verify_manage_units_async_full(
622 : u,
623 : "ref",
624 : CAP_SYS_ADMIN,
625 : NULL,
626 : false,
627 : message,
628 : error);
629 0 : if (r < 0)
630 0 : return r;
631 0 : if (r == 0)
632 0 : return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
633 :
634 0 : r = bus_unit_track_add_sender(u, message);
635 0 : if (r < 0)
636 0 : return r;
637 :
638 0 : return sd_bus_reply_method_return(message, NULL);
639 : }
640 :
641 0 : int bus_unit_method_unref(sd_bus_message *message, void *userdata, sd_bus_error *error) {
642 0 : Unit *u = userdata;
643 : int r;
644 :
645 0 : assert(message);
646 0 : assert(u);
647 :
648 0 : r = bus_unit_track_remove_sender(u, message);
649 0 : if (r == -EUNATCH)
650 0 : return sd_bus_error_setf(error, BUS_ERROR_NOT_REFERENCED, "Unit has not been referenced yet.");
651 0 : if (r < 0)
652 0 : return r;
653 :
654 0 : return sd_bus_reply_method_return(message, NULL);
655 : }
656 :
657 0 : int bus_unit_method_clean(sd_bus_message *message, void *userdata, sd_bus_error *error) {
658 0 : ExecCleanMask mask = 0;
659 0 : Unit *u = userdata;
660 : int r;
661 :
662 0 : assert(message);
663 0 : assert(u);
664 :
665 0 : r = mac_selinux_unit_access_check(u, message, "stop", error);
666 0 : if (r < 0)
667 0 : return r;
668 :
669 0 : r = sd_bus_message_enter_container(message, 'a', "s");
670 0 : if (r < 0)
671 0 : return r;
672 :
673 0 : for (;;) {
674 : const char *i;
675 :
676 0 : r = sd_bus_message_read(message, "s", &i);
677 0 : if (r < 0)
678 0 : return r;
679 0 : if (r == 0)
680 0 : break;
681 :
682 0 : if (streq(i, "all"))
683 0 : mask |= EXEC_CLEAN_ALL;
684 : else {
685 : ExecDirectoryType t;
686 :
687 0 : t = exec_resource_type_from_string(i);
688 0 : if (t < 0)
689 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid resource type: %s", i);
690 :
691 0 : mask |= 1U << t;
692 : }
693 : }
694 :
695 0 : r = sd_bus_message_exit_container(message);
696 0 : if (r < 0)
697 0 : return r;
698 :
699 0 : r = bus_verify_manage_units_async_full(
700 : u,
701 : "clean",
702 : CAP_DAC_OVERRIDE,
703 : N_("Authentication is required to delete files and directories associated with '$(unit)'."),
704 : true,
705 : message,
706 : error);
707 0 : if (r < 0)
708 0 : return r;
709 0 : if (r == 0)
710 0 : return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
711 :
712 0 : r = unit_clean(u, mask);
713 0 : if (r == -EOPNOTSUPP)
714 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Unit '%s' does not supporting cleaning.", u->id);
715 0 : if (r == -EUNATCH)
716 0 : return sd_bus_error_setf(error, BUS_ERROR_NOTHING_TO_CLEAN, "No matching resources found.");
717 0 : if (r == -EBUSY)
718 0 : return sd_bus_error_setf(error, BUS_ERROR_UNIT_BUSY, "Unit is not inactive or has pending job.");
719 0 : if (r < 0)
720 0 : return r;
721 :
722 0 : return sd_bus_reply_method_return(message, NULL);
723 : }
724 :
725 0 : static int property_get_refs(
726 : sd_bus *bus,
727 : const char *path,
728 : const char *interface,
729 : const char *property,
730 : sd_bus_message *reply,
731 : void *userdata,
732 : sd_bus_error *error) {
733 :
734 0 : Unit *u = userdata;
735 : const char *i;
736 : int r;
737 :
738 0 : assert(bus);
739 0 : assert(reply);
740 :
741 0 : r = sd_bus_message_open_container(reply, 'a', "s");
742 0 : if (r < 0)
743 0 : return r;
744 :
745 0 : for (i = sd_bus_track_first(u->bus_track); i; i = sd_bus_track_next(u->bus_track)) {
746 : int c, k;
747 :
748 0 : c = sd_bus_track_count_name(u->bus_track, i);
749 0 : if (c < 0)
750 0 : return c;
751 :
752 : /* Add the item multiple times if the ref count for each is above 1 */
753 0 : for (k = 0; k < c; k++) {
754 0 : r = sd_bus_message_append(reply, "s", i);
755 0 : if (r < 0)
756 0 : return r;
757 : }
758 : }
759 :
760 0 : return sd_bus_message_close_container(reply);
761 : }
762 :
763 : const sd_bus_vtable bus_unit_vtable[] = {
764 : SD_BUS_VTABLE_START(0),
765 :
766 : SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Unit, id), SD_BUS_VTABLE_PROPERTY_CONST),
767 : SD_BUS_PROPERTY("Names", "as", property_get_names, offsetof(Unit, names), SD_BUS_VTABLE_PROPERTY_CONST),
768 : SD_BUS_PROPERTY("Following", "s", property_get_following, 0, 0),
769 : SD_BUS_PROPERTY("Requires", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRES]), SD_BUS_VTABLE_PROPERTY_CONST),
770 : SD_BUS_PROPERTY("Requisite", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE]), SD_BUS_VTABLE_PROPERTY_CONST),
771 : SD_BUS_PROPERTY("Wants", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTS]), SD_BUS_VTABLE_PROPERTY_CONST),
772 : SD_BUS_PROPERTY("BindsTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BINDS_TO]), SD_BUS_VTABLE_PROPERTY_CONST),
773 : SD_BUS_PROPERTY("PartOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PART_OF]), SD_BUS_VTABLE_PROPERTY_CONST),
774 : SD_BUS_PROPERTY("RequiredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRED_BY]), SD_BUS_VTABLE_PROPERTY_CONST),
775 : SD_BUS_PROPERTY("RequisiteOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE_OF]), SD_BUS_VTABLE_PROPERTY_CONST),
776 : SD_BUS_PROPERTY("WantedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST),
777 : SD_BUS_PROPERTY("BoundBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BOUND_BY]), SD_BUS_VTABLE_PROPERTY_CONST),
778 : SD_BUS_PROPERTY("ConsistsOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONSISTS_OF]), SD_BUS_VTABLE_PROPERTY_CONST),
779 : SD_BUS_PROPERTY("Conflicts", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTS]), SD_BUS_VTABLE_PROPERTY_CONST),
780 : SD_BUS_PROPERTY("ConflictedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST),
781 : SD_BUS_PROPERTY("Before", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BEFORE]), SD_BUS_VTABLE_PROPERTY_CONST),
782 : SD_BUS_PROPERTY("After", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_AFTER]), SD_BUS_VTABLE_PROPERTY_CONST),
783 : SD_BUS_PROPERTY("OnFailure", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_ON_FAILURE]), SD_BUS_VTABLE_PROPERTY_CONST),
784 : SD_BUS_PROPERTY("Triggers", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERS]), SD_BUS_VTABLE_PROPERTY_CONST),
785 : SD_BUS_PROPERTY("TriggeredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERED_BY]), SD_BUS_VTABLE_PROPERTY_CONST),
786 : SD_BUS_PROPERTY("PropagatesReloadTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PROPAGATES_RELOAD_TO]), SD_BUS_VTABLE_PROPERTY_CONST),
787 : SD_BUS_PROPERTY("ReloadPropagatedFrom", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_RELOAD_PROPAGATED_FROM]), SD_BUS_VTABLE_PROPERTY_CONST),
788 : SD_BUS_PROPERTY("JoinsNamespaceOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_JOINS_NAMESPACE_OF]), SD_BUS_VTABLE_PROPERTY_CONST),
789 : SD_BUS_PROPERTY("RequiresMountsFor", "as", property_get_requires_mounts_for, offsetof(Unit, requires_mounts_for), SD_BUS_VTABLE_PROPERTY_CONST),
790 : SD_BUS_PROPERTY("Documentation", "as", NULL, offsetof(Unit, documentation), SD_BUS_VTABLE_PROPERTY_CONST),
791 : SD_BUS_PROPERTY("Description", "s", property_get_description, 0, SD_BUS_VTABLE_PROPERTY_CONST),
792 : SD_BUS_PROPERTY("LoadState", "s", property_get_load_state, offsetof(Unit, load_state), SD_BUS_VTABLE_PROPERTY_CONST),
793 : SD_BUS_PROPERTY("ActiveState", "s", property_get_active_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
794 : SD_BUS_PROPERTY("SubState", "s", property_get_sub_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
795 : SD_BUS_PROPERTY("FragmentPath", "s", NULL, offsetof(Unit, fragment_path), SD_BUS_VTABLE_PROPERTY_CONST),
796 : SD_BUS_PROPERTY("SourcePath", "s", NULL, offsetof(Unit, source_path), SD_BUS_VTABLE_PROPERTY_CONST),
797 : SD_BUS_PROPERTY("DropInPaths", "as", NULL, offsetof(Unit, dropin_paths), SD_BUS_VTABLE_PROPERTY_CONST),
798 : SD_BUS_PROPERTY("UnitFileState", "s", property_get_unit_file_state, 0, 0),
799 : SD_BUS_PROPERTY("UnitFilePreset", "s", property_get_unit_file_preset, 0, 0),
800 : BUS_PROPERTY_DUAL_TIMESTAMP("StateChangeTimestamp", offsetof(Unit, state_change_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
801 : BUS_PROPERTY_DUAL_TIMESTAMP("InactiveExitTimestamp", offsetof(Unit, inactive_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
802 : BUS_PROPERTY_DUAL_TIMESTAMP("ActiveEnterTimestamp", offsetof(Unit, active_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
803 : BUS_PROPERTY_DUAL_TIMESTAMP("ActiveExitTimestamp", offsetof(Unit, active_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
804 : BUS_PROPERTY_DUAL_TIMESTAMP("InactiveEnterTimestamp", offsetof(Unit, inactive_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
805 : SD_BUS_PROPERTY("CanStart", "b", property_get_can_start, 0, SD_BUS_VTABLE_PROPERTY_CONST),
806 : SD_BUS_PROPERTY("CanStop", "b", property_get_can_stop, 0, SD_BUS_VTABLE_PROPERTY_CONST),
807 : SD_BUS_PROPERTY("CanReload", "b", property_get_can_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST),
808 : SD_BUS_PROPERTY("CanIsolate", "b", property_get_can_isolate, 0, SD_BUS_VTABLE_PROPERTY_CONST),
809 : SD_BUS_PROPERTY("CanClean", "as", property_get_can_clean, 0, SD_BUS_VTABLE_PROPERTY_CONST),
810 : SD_BUS_PROPERTY("Job", "(uo)", property_get_job, offsetof(Unit, job), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
811 : SD_BUS_PROPERTY("StopWhenUnneeded", "b", bus_property_get_bool, offsetof(Unit, stop_when_unneeded), SD_BUS_VTABLE_PROPERTY_CONST),
812 : SD_BUS_PROPERTY("RefuseManualStart", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_start), SD_BUS_VTABLE_PROPERTY_CONST),
813 : SD_BUS_PROPERTY("RefuseManualStop", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_stop), SD_BUS_VTABLE_PROPERTY_CONST),
814 : SD_BUS_PROPERTY("AllowIsolate", "b", bus_property_get_bool, offsetof(Unit, allow_isolate), SD_BUS_VTABLE_PROPERTY_CONST),
815 : SD_BUS_PROPERTY("DefaultDependencies", "b", bus_property_get_bool, offsetof(Unit, default_dependencies), SD_BUS_VTABLE_PROPERTY_CONST),
816 : SD_BUS_PROPERTY("OnFailureJobMode", "s", property_get_job_mode, offsetof(Unit, on_failure_job_mode), SD_BUS_VTABLE_PROPERTY_CONST),
817 : SD_BUS_PROPERTY("IgnoreOnIsolate", "b", bus_property_get_bool, offsetof(Unit, ignore_on_isolate), SD_BUS_VTABLE_PROPERTY_CONST),
818 : SD_BUS_PROPERTY("NeedDaemonReload", "b", property_get_need_daemon_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST),
819 : SD_BUS_PROPERTY("JobTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_timeout), SD_BUS_VTABLE_PROPERTY_CONST),
820 : SD_BUS_PROPERTY("JobRunningTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_running_timeout), SD_BUS_VTABLE_PROPERTY_CONST),
821 : SD_BUS_PROPERTY("JobTimeoutAction", "s", property_get_emergency_action, offsetof(Unit, job_timeout_action), SD_BUS_VTABLE_PROPERTY_CONST),
822 : SD_BUS_PROPERTY("JobTimeoutRebootArgument", "s", NULL, offsetof(Unit, job_timeout_reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST),
823 : SD_BUS_PROPERTY("ConditionResult", "b", bus_property_get_bool, offsetof(Unit, condition_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
824 : SD_BUS_PROPERTY("AssertResult", "b", bus_property_get_bool, offsetof(Unit, assert_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
825 : BUS_PROPERTY_DUAL_TIMESTAMP("ConditionTimestamp", offsetof(Unit, condition_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
826 : BUS_PROPERTY_DUAL_TIMESTAMP("AssertTimestamp", offsetof(Unit, assert_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
827 : SD_BUS_PROPERTY("Conditions", "a(sbbsi)", property_get_conditions, offsetof(Unit, conditions), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
828 : SD_BUS_PROPERTY("Asserts", "a(sbbsi)", property_get_conditions, offsetof(Unit, asserts), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
829 : SD_BUS_PROPERTY("LoadError", "(ss)", property_get_load_error, 0, SD_BUS_VTABLE_PROPERTY_CONST),
830 : SD_BUS_PROPERTY("Transient", "b", bus_property_get_bool, offsetof(Unit, transient), SD_BUS_VTABLE_PROPERTY_CONST),
831 : SD_BUS_PROPERTY("Perpetual", "b", bus_property_get_bool, offsetof(Unit, perpetual), SD_BUS_VTABLE_PROPERTY_CONST),
832 : SD_BUS_PROPERTY("StartLimitIntervalUSec", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST),
833 : SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned, offsetof(Unit, start_limit.burst), SD_BUS_VTABLE_PROPERTY_CONST),
834 : SD_BUS_PROPERTY("StartLimitAction", "s", property_get_emergency_action, offsetof(Unit, start_limit_action), SD_BUS_VTABLE_PROPERTY_CONST),
835 : SD_BUS_PROPERTY("FailureAction", "s", property_get_emergency_action, offsetof(Unit, failure_action), SD_BUS_VTABLE_PROPERTY_CONST),
836 : SD_BUS_PROPERTY("FailureActionExitStatus", "i", bus_property_get_int, offsetof(Unit, failure_action_exit_status), SD_BUS_VTABLE_PROPERTY_CONST),
837 : SD_BUS_PROPERTY("SuccessAction", "s", property_get_emergency_action, offsetof(Unit, success_action), SD_BUS_VTABLE_PROPERTY_CONST),
838 : SD_BUS_PROPERTY("SuccessActionExitStatus", "i", bus_property_get_int, offsetof(Unit, success_action_exit_status), SD_BUS_VTABLE_PROPERTY_CONST),
839 : SD_BUS_PROPERTY("RebootArgument", "s", NULL, offsetof(Unit, reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST),
840 : SD_BUS_PROPERTY("InvocationID", "ay", bus_property_get_id128, offsetof(Unit, invocation_id), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
841 : SD_BUS_PROPERTY("CollectMode", "s", property_get_collect_mode, offsetof(Unit, collect_mode), SD_BUS_VTABLE_PROPERTY_CONST),
842 : SD_BUS_PROPERTY("Refs", "as", property_get_refs, 0, 0),
843 :
844 : SD_BUS_METHOD("Start", "s", "o", method_start, SD_BUS_VTABLE_UNPRIVILEGED),
845 : SD_BUS_METHOD("Stop", "s", "o", method_stop, SD_BUS_VTABLE_UNPRIVILEGED),
846 : SD_BUS_METHOD("Reload", "s", "o", method_reload, SD_BUS_VTABLE_UNPRIVILEGED),
847 : SD_BUS_METHOD("Restart", "s", "o", method_restart, SD_BUS_VTABLE_UNPRIVILEGED),
848 : SD_BUS_METHOD("TryRestart", "s", "o", method_try_restart, SD_BUS_VTABLE_UNPRIVILEGED),
849 : SD_BUS_METHOD("ReloadOrRestart", "s", "o", method_reload_or_restart, SD_BUS_VTABLE_UNPRIVILEGED),
850 : SD_BUS_METHOD("ReloadOrTryRestart", "s", "o", method_reload_or_try_restart, SD_BUS_VTABLE_UNPRIVILEGED),
851 : SD_BUS_METHOD("EnqueueJob", "ss", "uososa(uosos)", bus_unit_method_enqueue_job, SD_BUS_VTABLE_UNPRIVILEGED),
852 : SD_BUS_METHOD("Kill", "si", NULL, bus_unit_method_kill, SD_BUS_VTABLE_UNPRIVILEGED),
853 : SD_BUS_METHOD("ResetFailed", NULL, NULL, bus_unit_method_reset_failed, SD_BUS_VTABLE_UNPRIVILEGED),
854 : SD_BUS_METHOD("SetProperties", "ba(sv)", NULL, bus_unit_method_set_properties, SD_BUS_VTABLE_UNPRIVILEGED),
855 : SD_BUS_METHOD("Ref", NULL, NULL, bus_unit_method_ref, SD_BUS_VTABLE_UNPRIVILEGED),
856 : SD_BUS_METHOD("Unref", NULL, NULL, bus_unit_method_unref, SD_BUS_VTABLE_UNPRIVILEGED),
857 : SD_BUS_METHOD("Clean", "as", NULL, bus_unit_method_clean, SD_BUS_VTABLE_UNPRIVILEGED),
858 :
859 : /* For dependency types we don't support anymore always return an empty array */
860 : SD_BUS_PROPERTY("RequiresOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN),
861 : SD_BUS_PROPERTY("RequisiteOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN),
862 : SD_BUS_PROPERTY("RequiredByOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN),
863 : SD_BUS_PROPERTY("RequisiteOfOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN),
864 : /* Obsolete alias names */
865 : SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
866 : SD_BUS_PROPERTY("StartLimitIntervalSec", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
867 : SD_BUS_VTABLE_END
868 : };
869 :
870 0 : static int property_get_slice(
871 : sd_bus *bus,
872 : const char *path,
873 : const char *interface,
874 : const char *property,
875 : sd_bus_message *reply,
876 : void *userdata,
877 : sd_bus_error *error) {
878 :
879 0 : Unit *u = userdata;
880 :
881 0 : assert(bus);
882 0 : assert(reply);
883 0 : assert(u);
884 :
885 0 : return sd_bus_message_append(reply, "s", unit_slice_name(u));
886 : }
887 :
888 0 : static int property_get_current_memory(
889 : sd_bus *bus,
890 : const char *path,
891 : const char *interface,
892 : const char *property,
893 : sd_bus_message *reply,
894 : void *userdata,
895 : sd_bus_error *error) {
896 :
897 0 : uint64_t sz = (uint64_t) -1;
898 0 : Unit *u = userdata;
899 : int r;
900 :
901 0 : assert(bus);
902 0 : assert(reply);
903 0 : assert(u);
904 :
905 0 : r = unit_get_memory_current(u, &sz);
906 0 : if (r < 0 && r != -ENODATA)
907 0 : log_unit_warning_errno(u, r, "Failed to get memory.usage_in_bytes attribute: %m");
908 :
909 0 : return sd_bus_message_append(reply, "t", sz);
910 : }
911 :
912 0 : static int property_get_current_tasks(
913 : sd_bus *bus,
914 : const char *path,
915 : const char *interface,
916 : const char *property,
917 : sd_bus_message *reply,
918 : void *userdata,
919 : sd_bus_error *error) {
920 :
921 0 : uint64_t cn = (uint64_t) -1;
922 0 : Unit *u = userdata;
923 : int r;
924 :
925 0 : assert(bus);
926 0 : assert(reply);
927 0 : assert(u);
928 :
929 0 : r = unit_get_tasks_current(u, &cn);
930 0 : if (r < 0 && r != -ENODATA)
931 0 : log_unit_warning_errno(u, r, "Failed to get pids.current attribute: %m");
932 :
933 0 : return sd_bus_message_append(reply, "t", cn);
934 : }
935 :
936 0 : static int property_get_cpu_usage(
937 : sd_bus *bus,
938 : const char *path,
939 : const char *interface,
940 : const char *property,
941 : sd_bus_message *reply,
942 : void *userdata,
943 : sd_bus_error *error) {
944 :
945 0 : nsec_t ns = (nsec_t) -1;
946 0 : Unit *u = userdata;
947 : int r;
948 :
949 0 : assert(bus);
950 0 : assert(reply);
951 0 : assert(u);
952 :
953 0 : r = unit_get_cpu_usage(u, &ns);
954 0 : if (r < 0 && r != -ENODATA)
955 0 : log_unit_warning_errno(u, r, "Failed to get cpuacct.usage attribute: %m");
956 :
957 0 : return sd_bus_message_append(reply, "t", ns);
958 : }
959 :
960 0 : static int property_get_cgroup(
961 : sd_bus *bus,
962 : const char *path,
963 : const char *interface,
964 : const char *property,
965 : sd_bus_message *reply,
966 : void *userdata,
967 : sd_bus_error *error) {
968 :
969 0 : Unit *u = userdata;
970 0 : const char *t = NULL;
971 :
972 0 : assert(bus);
973 0 : assert(reply);
974 0 : assert(u);
975 :
976 : /* Three cases: a) u->cgroup_path is NULL, in which case the
977 : * unit has no control group, which we report as the empty
978 : * string. b) u->cgroup_path is the empty string, which
979 : * indicates the root cgroup, which we report as "/". c) all
980 : * other cases we report as-is. */
981 :
982 0 : if (u->cgroup_path)
983 0 : t = empty_to_root(u->cgroup_path);
984 :
985 0 : return sd_bus_message_append(reply, "s", t);
986 : }
987 :
988 0 : static int append_process(sd_bus_message *reply, const char *p, pid_t pid, Set *pids) {
989 0 : _cleanup_free_ char *buf = NULL, *cmdline = NULL;
990 : int r;
991 :
992 0 : assert(reply);
993 0 : assert(pid > 0);
994 :
995 0 : r = set_put(pids, PID_TO_PTR(pid));
996 0 : if (IN_SET(r, 0, -EEXIST))
997 0 : return 0;
998 0 : if (r < 0)
999 0 : return r;
1000 :
1001 0 : if (!p) {
1002 0 : r = cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, pid, &buf);
1003 0 : if (r == -ESRCH)
1004 0 : return 0;
1005 0 : if (r < 0)
1006 0 : return r;
1007 :
1008 0 : p = buf;
1009 : }
1010 :
1011 0 : (void) get_process_cmdline(pid, SIZE_MAX, PROCESS_CMDLINE_COMM_FALLBACK, &cmdline);
1012 :
1013 0 : return sd_bus_message_append(reply,
1014 : "(sus)",
1015 : p,
1016 : (uint32_t) pid,
1017 : cmdline);
1018 : }
1019 :
1020 0 : static int append_cgroup(sd_bus_message *reply, const char *p, Set *pids) {
1021 0 : _cleanup_closedir_ DIR *d = NULL;
1022 0 : _cleanup_fclose_ FILE *f = NULL;
1023 : int r;
1024 :
1025 0 : assert(reply);
1026 0 : assert(p);
1027 :
1028 0 : r = cg_enumerate_processes(SYSTEMD_CGROUP_CONTROLLER, p, &f);
1029 0 : if (r == -ENOENT)
1030 0 : return 0;
1031 0 : if (r < 0)
1032 0 : return r;
1033 :
1034 0 : for (;;) {
1035 : pid_t pid;
1036 :
1037 0 : r = cg_read_pid(f, &pid);
1038 0 : if (r < 0)
1039 0 : return r;
1040 0 : if (r == 0)
1041 0 : break;
1042 :
1043 0 : if (is_kernel_thread(pid) > 0)
1044 0 : continue;
1045 :
1046 0 : r = append_process(reply, p, pid, pids);
1047 0 : if (r < 0)
1048 0 : return r;
1049 : }
1050 :
1051 0 : r = cg_enumerate_subgroups(SYSTEMD_CGROUP_CONTROLLER, p, &d);
1052 0 : if (r == -ENOENT)
1053 0 : return 0;
1054 0 : if (r < 0)
1055 0 : return r;
1056 :
1057 0 : for (;;) {
1058 0 : _cleanup_free_ char *g = NULL, *j = NULL;
1059 :
1060 0 : r = cg_read_subgroup(d, &g);
1061 0 : if (r < 0)
1062 0 : return r;
1063 0 : if (r == 0)
1064 0 : break;
1065 :
1066 0 : j = path_join(empty_to_root(p), g);
1067 0 : if (!j)
1068 0 : return -ENOMEM;
1069 :
1070 0 : r = append_cgroup(reply, j, pids);
1071 0 : if (r < 0)
1072 0 : return r;
1073 : }
1074 :
1075 0 : return 0;
1076 : }
1077 :
1078 0 : int bus_unit_method_get_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1079 0 : _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1080 0 : _cleanup_set_free_ Set *pids = NULL;
1081 0 : Unit *u = userdata;
1082 : pid_t pid;
1083 : int r;
1084 :
1085 0 : assert(message);
1086 :
1087 0 : r = mac_selinux_unit_access_check(u, message, "status", error);
1088 0 : if (r < 0)
1089 0 : return r;
1090 :
1091 0 : pids = set_new(NULL);
1092 0 : if (!pids)
1093 0 : return -ENOMEM;
1094 :
1095 0 : r = sd_bus_message_new_method_return(message, &reply);
1096 0 : if (r < 0)
1097 0 : return r;
1098 :
1099 0 : r = sd_bus_message_open_container(reply, 'a', "(sus)");
1100 0 : if (r < 0)
1101 0 : return r;
1102 :
1103 0 : if (u->cgroup_path) {
1104 0 : r = append_cgroup(reply, u->cgroup_path, pids);
1105 0 : if (r < 0)
1106 0 : return r;
1107 : }
1108 :
1109 : /* The main and control pids might live outside of the cgroup, hence fetch them separately */
1110 0 : pid = unit_main_pid(u);
1111 0 : if (pid > 0) {
1112 0 : r = append_process(reply, NULL, pid, pids);
1113 0 : if (r < 0)
1114 0 : return r;
1115 : }
1116 :
1117 0 : pid = unit_control_pid(u);
1118 0 : if (pid > 0) {
1119 0 : r = append_process(reply, NULL, pid, pids);
1120 0 : if (r < 0)
1121 0 : return r;
1122 : }
1123 :
1124 0 : r = sd_bus_message_close_container(reply);
1125 0 : if (r < 0)
1126 0 : return r;
1127 :
1128 0 : return sd_bus_send(NULL, reply, NULL);
1129 : }
1130 :
1131 0 : static int property_get_ip_counter(
1132 : sd_bus *bus,
1133 : const char *path,
1134 : const char *interface,
1135 : const char *property,
1136 : sd_bus_message *reply,
1137 : void *userdata,
1138 : sd_bus_error *error) {
1139 :
1140 : static const char *const table[_CGROUP_IP_ACCOUNTING_METRIC_MAX] = {
1141 : [CGROUP_IP_INGRESS_BYTES] = "IPIngressBytes",
1142 : [CGROUP_IP_EGRESS_BYTES] = "IPEgressBytes",
1143 : [CGROUP_IP_INGRESS_PACKETS] = "IPIngressPackets",
1144 : [CGROUP_IP_EGRESS_PACKETS] = "IPEgressPackets",
1145 : };
1146 :
1147 0 : uint64_t value = UINT64_MAX;
1148 0 : Unit *u = userdata;
1149 : ssize_t metric;
1150 :
1151 0 : assert(bus);
1152 0 : assert(reply);
1153 0 : assert(property);
1154 0 : assert(u);
1155 :
1156 0 : assert_se((metric = string_table_lookup(table, ELEMENTSOF(table), property)) >= 0);
1157 0 : (void) unit_get_ip_accounting(u, metric, &value);
1158 0 : return sd_bus_message_append(reply, "t", value);
1159 : }
1160 :
1161 0 : static int property_get_io_counter(
1162 : sd_bus *bus,
1163 : const char *path,
1164 : const char *interface,
1165 : const char *property,
1166 : sd_bus_message *reply,
1167 : void *userdata,
1168 : sd_bus_error *error) {
1169 :
1170 : static const char *const table[_CGROUP_IO_ACCOUNTING_METRIC_MAX] = {
1171 : [CGROUP_IO_READ_BYTES] = "IOReadBytes",
1172 : [CGROUP_IO_WRITE_BYTES] = "IOWriteBytes",
1173 : [CGROUP_IO_READ_OPERATIONS] = "IOReadOperations",
1174 : [CGROUP_IO_WRITE_OPERATIONS] = "IOWriteOperations",
1175 : };
1176 :
1177 0 : uint64_t value = UINT64_MAX;
1178 0 : Unit *u = userdata;
1179 : ssize_t metric;
1180 :
1181 0 : assert(bus);
1182 0 : assert(reply);
1183 0 : assert(property);
1184 0 : assert(u);
1185 :
1186 0 : assert_se((metric = string_table_lookup(table, ELEMENTSOF(table), property)) >= 0);
1187 0 : (void) unit_get_io_accounting(u, metric, false, &value);
1188 0 : return sd_bus_message_append(reply, "t", value);
1189 : }
1190 :
1191 0 : int bus_unit_method_attach_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1192 :
1193 0 : _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
1194 0 : _cleanup_set_free_ Set *pids = NULL;
1195 0 : Unit *u = userdata;
1196 : const char *path;
1197 : int r;
1198 :
1199 0 : assert(message);
1200 :
1201 : /* This migrates the processes with the specified PIDs into the cgroup of this unit, optionally below a
1202 : * specified cgroup path. Obviously this only works for units that actually maintain a cgroup
1203 : * representation. If a process is already in the cgroup no operation is executed – in this case the specified
1204 : * subcgroup path has no effect! */
1205 :
1206 0 : r = mac_selinux_unit_access_check(u, message, "start", error);
1207 0 : if (r < 0)
1208 0 : return r;
1209 :
1210 0 : r = sd_bus_message_read(message, "s", &path);
1211 0 : if (r < 0)
1212 0 : return r;
1213 :
1214 0 : path = empty_to_null(path);
1215 0 : if (path) {
1216 0 : if (!path_is_absolute(path))
1217 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Control group path is not absolute: %s", path);
1218 :
1219 0 : if (!path_is_normalized(path))
1220 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Control group path is not normalized: %s", path);
1221 : }
1222 :
1223 0 : if (!unit_cgroup_delegate(u))
1224 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Process migration not available on non-delegated units.");
1225 :
1226 0 : if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u)))
1227 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit is not active, refusing.");
1228 :
1229 0 : r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID, &creds);
1230 0 : if (r < 0)
1231 0 : return r;
1232 :
1233 0 : r = sd_bus_message_enter_container(message, 'a', "u");
1234 0 : if (r < 0)
1235 0 : return r;
1236 0 : for (;;) {
1237 : uid_t process_uid, sender_uid;
1238 : uint32_t upid;
1239 : pid_t pid;
1240 :
1241 0 : r = sd_bus_message_read(message, "u", &upid);
1242 0 : if (r < 0)
1243 0 : return r;
1244 0 : if (r == 0)
1245 0 : break;
1246 :
1247 0 : if (upid == 0) {
1248 0 : r = sd_bus_creds_get_pid(creds, &pid);
1249 0 : if (r < 0)
1250 0 : return r;
1251 : } else
1252 0 : pid = (uid_t) upid;
1253 :
1254 : /* Filter out duplicates */
1255 0 : if (set_contains(pids, PID_TO_PTR(pid)))
1256 0 : continue;
1257 :
1258 : /* Check if this process is suitable for attaching to this unit */
1259 0 : r = unit_pid_attachable(u, pid, error);
1260 0 : if (r < 0)
1261 0 : return r;
1262 :
1263 : /* Let's query the sender's UID, so that we can make our security decisions */
1264 0 : r = sd_bus_creds_get_euid(creds, &sender_uid);
1265 0 : if (r < 0)
1266 0 : return r;
1267 :
1268 : /* Let's validate security: if the sender is root, then all is OK. If the sender is any other unit,
1269 : * then the process' UID and the target unit's UID have to match the sender's UID */
1270 0 : if (sender_uid != 0 && sender_uid != getuid()) {
1271 0 : r = get_process_uid(pid, &process_uid);
1272 0 : if (r < 0)
1273 0 : return sd_bus_error_set_errnof(error, r, "Failed to retrieve process UID: %m");
1274 :
1275 0 : if (process_uid != sender_uid)
1276 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Process " PID_FMT " not owned by client's UID. Refusing.", pid);
1277 0 : if (process_uid != u->ref_uid)
1278 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Process " PID_FMT " not owned by target unit's UID. Refusing.", pid);
1279 : }
1280 :
1281 0 : if (!pids) {
1282 0 : pids = set_new(NULL);
1283 0 : if (!pids)
1284 0 : return -ENOMEM;
1285 : }
1286 :
1287 0 : r = set_put(pids, PID_TO_PTR(pid));
1288 0 : if (r < 0)
1289 0 : return r;
1290 : }
1291 :
1292 0 : r = sd_bus_message_exit_container(message);
1293 0 : if (r < 0)
1294 0 : return r;
1295 :
1296 0 : r = unit_attach_pids_to_cgroup(u, pids, path);
1297 0 : if (r < 0)
1298 0 : return sd_bus_error_set_errnof(error, r, "Failed to attach processes to control group: %m");
1299 :
1300 0 : return sd_bus_reply_method_return(message, NULL);
1301 : }
1302 :
1303 : const sd_bus_vtable bus_unit_cgroup_vtable[] = {
1304 : SD_BUS_VTABLE_START(0),
1305 : SD_BUS_PROPERTY("Slice", "s", property_get_slice, 0, 0),
1306 : SD_BUS_PROPERTY("ControlGroup", "s", property_get_cgroup, 0, 0),
1307 : SD_BUS_PROPERTY("MemoryCurrent", "t", property_get_current_memory, 0, 0),
1308 : SD_BUS_PROPERTY("CPUUsageNSec", "t", property_get_cpu_usage, 0, 0),
1309 : SD_BUS_PROPERTY("TasksCurrent", "t", property_get_current_tasks, 0, 0),
1310 : SD_BUS_PROPERTY("IPIngressBytes", "t", property_get_ip_counter, 0, 0),
1311 : SD_BUS_PROPERTY("IPIngressPackets", "t", property_get_ip_counter, 0, 0),
1312 : SD_BUS_PROPERTY("IPEgressBytes", "t", property_get_ip_counter, 0, 0),
1313 : SD_BUS_PROPERTY("IPEgressPackets", "t", property_get_ip_counter, 0, 0),
1314 : SD_BUS_PROPERTY("IOReadBytes", "t", property_get_io_counter, 0, 0),
1315 : SD_BUS_PROPERTY("IOReadOperations", "t", property_get_io_counter, 0, 0),
1316 : SD_BUS_PROPERTY("IOWriteBytes", "t", property_get_io_counter, 0, 0),
1317 : SD_BUS_PROPERTY("IOWriteOperations", "t", property_get_io_counter, 0, 0),
1318 : SD_BUS_METHOD("GetProcesses", NULL, "a(sus)", bus_unit_method_get_processes, SD_BUS_VTABLE_UNPRIVILEGED),
1319 : SD_BUS_METHOD("AttachProcesses", "sau", NULL, bus_unit_method_attach_processes, SD_BUS_VTABLE_UNPRIVILEGED),
1320 : SD_BUS_VTABLE_END
1321 : };
1322 :
1323 0 : static int send_new_signal(sd_bus *bus, void *userdata) {
1324 0 : _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1325 0 : _cleanup_free_ char *p = NULL;
1326 0 : Unit *u = userdata;
1327 : int r;
1328 :
1329 0 : assert(bus);
1330 0 : assert(u);
1331 :
1332 0 : p = unit_dbus_path(u);
1333 0 : if (!p)
1334 0 : return -ENOMEM;
1335 :
1336 0 : r = sd_bus_message_new_signal(
1337 : bus,
1338 : &m,
1339 : "/org/freedesktop/systemd1",
1340 : "org.freedesktop.systemd1.Manager",
1341 : "UnitNew");
1342 0 : if (r < 0)
1343 0 : return r;
1344 :
1345 0 : r = sd_bus_message_append(m, "so", u->id, p);
1346 0 : if (r < 0)
1347 0 : return r;
1348 :
1349 0 : return sd_bus_send(bus, m, NULL);
1350 : }
1351 :
1352 0 : static int send_changed_signal(sd_bus *bus, void *userdata) {
1353 0 : _cleanup_free_ char *p = NULL;
1354 0 : Unit *u = userdata;
1355 : int r;
1356 :
1357 0 : assert(bus);
1358 0 : assert(u);
1359 :
1360 0 : p = unit_dbus_path(u);
1361 0 : if (!p)
1362 0 : return -ENOMEM;
1363 :
1364 : /* Send a properties changed signal. First for the specific
1365 : * type, then for the generic unit. The clients may rely on
1366 : * this order to get atomic behavior if needed. */
1367 :
1368 0 : r = sd_bus_emit_properties_changed_strv(
1369 : bus, p,
1370 : unit_dbus_interface_from_type(u->type),
1371 : NULL);
1372 0 : if (r < 0)
1373 0 : return r;
1374 :
1375 0 : return sd_bus_emit_properties_changed_strv(
1376 : bus, p,
1377 : "org.freedesktop.systemd1.Unit",
1378 : NULL);
1379 : }
1380 :
1381 5 : void bus_unit_send_change_signal(Unit *u) {
1382 : int r;
1383 5 : assert(u);
1384 :
1385 5 : if (u->in_dbus_queue) {
1386 0 : LIST_REMOVE(dbus_queue, u->manager->dbus_unit_queue, u);
1387 0 : u->in_dbus_queue = false;
1388 : }
1389 :
1390 5 : if (!u->id)
1391 2 : return;
1392 :
1393 3 : r = bus_foreach_bus(u->manager, u->bus_track, u->sent_dbus_new_signal ? send_changed_signal : send_new_signal, u);
1394 3 : if (r < 0)
1395 0 : log_unit_debug_errno(u, r, "Failed to send unit change signal for %s: %m", u->id);
1396 :
1397 3 : u->sent_dbus_new_signal = true;
1398 : }
1399 :
1400 1849 : void bus_unit_send_pending_change_signal(Unit *u, bool including_new) {
1401 :
1402 : /* Sends out any pending change signals, but only if they really are pending. This call is used when we are
1403 : * about to change state in order to force out a PropertiesChanged signal beforehand if there was one pending
1404 : * so that clients can follow the full state transition */
1405 :
1406 1849 : if (!u->in_dbus_queue) /* If not enqueued, don't bother */
1407 1849 : return;
1408 :
1409 0 : if (!u->sent_dbus_new_signal && !including_new) /* If the unit was never announced, don't bother, it's fine if
1410 : * the unit appears in the new state right-away (except if the
1411 : * caller explicitly asked us to send it anyway) */
1412 0 : return;
1413 :
1414 0 : if (MANAGER_IS_RELOADING(u->manager)) /* Don't generate unnecessary PropertiesChanged signals for the same unit
1415 : * when we are reloading. */
1416 0 : return;
1417 :
1418 0 : bus_unit_send_change_signal(u);
1419 : }
1420 :
1421 0 : static int send_removed_signal(sd_bus *bus, void *userdata) {
1422 0 : _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1423 0 : _cleanup_free_ char *p = NULL;
1424 0 : Unit *u = userdata;
1425 : int r;
1426 :
1427 0 : assert(bus);
1428 0 : assert(u);
1429 :
1430 0 : p = unit_dbus_path(u);
1431 0 : if (!p)
1432 0 : return -ENOMEM;
1433 :
1434 0 : r = sd_bus_message_new_signal(
1435 : bus,
1436 : &m,
1437 : "/org/freedesktop/systemd1",
1438 : "org.freedesktop.systemd1.Manager",
1439 : "UnitRemoved");
1440 0 : if (r < 0)
1441 0 : return r;
1442 :
1443 0 : r = sd_bus_message_append(m, "so", u->id, p);
1444 0 : if (r < 0)
1445 0 : return r;
1446 :
1447 0 : return sd_bus_send(bus, m, NULL);
1448 : }
1449 :
1450 2160 : void bus_unit_send_removed_signal(Unit *u) {
1451 : int r;
1452 2160 : assert(u);
1453 :
1454 2160 : if (!u->sent_dbus_new_signal || u->in_dbus_queue)
1455 5 : bus_unit_send_change_signal(u);
1456 :
1457 2160 : if (!u->id)
1458 2 : return;
1459 :
1460 2158 : r = bus_foreach_bus(u->manager, u->bus_track, send_removed_signal, u);
1461 2158 : if (r < 0)
1462 0 : log_unit_debug_errno(u, r, "Failed to send unit remove signal for %s: %m", u->id);
1463 : }
1464 :
1465 0 : int bus_unit_queue_job(
1466 : sd_bus_message *message,
1467 : Unit *u,
1468 : JobType type,
1469 : JobMode mode,
1470 : BusUnitQueueFlags flags,
1471 : sd_bus_error *error) {
1472 :
1473 0 : _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1474 0 : _cleanup_free_ char *job_path = NULL, *unit_path = NULL;
1475 0 : _cleanup_(set_freep) Set *affected = NULL;
1476 : Iterator i;
1477 : Job *j, *a;
1478 : int r;
1479 :
1480 0 : assert(message);
1481 0 : assert(u);
1482 0 : assert(type >= 0 && type < _JOB_TYPE_MAX);
1483 0 : assert(mode >= 0 && mode < _JOB_MODE_MAX);
1484 :
1485 0 : r = mac_selinux_unit_access_check(
1486 : u, message,
1487 : job_type_to_access_method(type),
1488 : error);
1489 0 : if (r < 0)
1490 0 : return r;
1491 :
1492 0 : if (FLAGS_SET(flags, BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE) && unit_can_reload(u)) {
1493 0 : if (type == JOB_RESTART)
1494 0 : type = JOB_RELOAD_OR_START;
1495 0 : else if (type == JOB_TRY_RESTART)
1496 0 : type = JOB_TRY_RELOAD;
1497 : }
1498 :
1499 0 : if (type == JOB_STOP &&
1500 0 : IN_SET(u->load_state, UNIT_NOT_FOUND, UNIT_ERROR, UNIT_BAD_SETTING) &&
1501 0 : unit_active_state(u) == UNIT_INACTIVE)
1502 0 : return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id);
1503 :
1504 0 : if ((type == JOB_START && u->refuse_manual_start) ||
1505 0 : (type == JOB_STOP && u->refuse_manual_stop) ||
1506 0 : (IN_SET(type, JOB_RESTART, JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop)) ||
1507 0 : (type == JOB_RELOAD_OR_START && job_type_collapse(type, u) == JOB_START && u->refuse_manual_start))
1508 0 : return sd_bus_error_setf(error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only (it is configured to refuse manual start/stop).", u->id);
1509 :
1510 0 : if (FLAGS_SET(flags, BUS_UNIT_QUEUE_VERBOSE_REPLY)) {
1511 0 : affected = set_new(NULL);
1512 0 : if (!affected)
1513 0 : return -ENOMEM;
1514 : }
1515 :
1516 0 : r = manager_add_job(u->manager, type, u, mode, affected, error, &j);
1517 0 : if (r < 0)
1518 0 : return r;
1519 :
1520 0 : r = bus_job_track_sender(j, message);
1521 0 : if (r < 0)
1522 0 : return r;
1523 :
1524 : /* Before we send the method reply, force out the announcement JobNew for this job */
1525 0 : bus_job_send_pending_change_signal(j, true);
1526 :
1527 0 : job_path = job_dbus_path(j);
1528 0 : if (!job_path)
1529 0 : return -ENOMEM;
1530 :
1531 : /* The classic response is just a job object path */
1532 0 : if (!FLAGS_SET(flags, BUS_UNIT_QUEUE_VERBOSE_REPLY))
1533 0 : return sd_bus_reply_method_return(message, "o", job_path);
1534 :
1535 : /* In verbose mode respond with the anchor job plus everything that has been affected */
1536 0 : r = sd_bus_message_new_method_return(message, &reply);
1537 0 : if (r < 0)
1538 0 : return r;
1539 :
1540 0 : unit_path = unit_dbus_path(j->unit);
1541 0 : if (!unit_path)
1542 0 : return -ENOMEM;
1543 :
1544 0 : r = sd_bus_message_append(reply, "uosos",
1545 0 : j->id, job_path,
1546 0 : j->unit->id, unit_path,
1547 0 : job_type_to_string(j->type));
1548 0 : if (r < 0)
1549 0 : return r;
1550 :
1551 0 : r = sd_bus_message_open_container(reply, 'a', "(uosos)");
1552 0 : if (r < 0)
1553 0 : return r;
1554 :
1555 0 : SET_FOREACH(a, affected, i) {
1556 :
1557 0 : if (a->id == j->id)
1558 0 : continue;
1559 :
1560 : /* Free paths from previous iteration */
1561 0 : job_path = mfree(job_path);
1562 0 : unit_path = mfree(unit_path);
1563 :
1564 0 : job_path = job_dbus_path(a);
1565 0 : if (!job_path)
1566 0 : return -ENOMEM;
1567 :
1568 0 : unit_path = unit_dbus_path(a->unit);
1569 0 : if (!unit_path)
1570 0 : return -ENOMEM;
1571 :
1572 0 : r = sd_bus_message_append(reply, "(uosos)",
1573 0 : a->id, job_path,
1574 0 : a->unit->id, unit_path,
1575 0 : job_type_to_string(a->type));
1576 0 : if (r < 0)
1577 0 : return r;
1578 : }
1579 :
1580 0 : r = sd_bus_message_close_container(reply);
1581 0 : if (r < 0)
1582 0 : return r;
1583 :
1584 0 : return sd_bus_send(NULL, reply, NULL);
1585 : }
1586 :
1587 0 : static int bus_unit_set_live_property(
1588 : Unit *u,
1589 : const char *name,
1590 : sd_bus_message *message,
1591 : UnitWriteFlags flags,
1592 : sd_bus_error *error) {
1593 :
1594 : int r;
1595 :
1596 0 : assert(u);
1597 0 : assert(name);
1598 0 : assert(message);
1599 :
1600 : /* Handles setting properties both "live" (i.e. at any time during runtime), and during creation (for transient
1601 : * units that are being created). */
1602 :
1603 0 : if (streq(name, "Description")) {
1604 : const char *d;
1605 :
1606 0 : r = sd_bus_message_read(message, "s", &d);
1607 0 : if (r < 0)
1608 0 : return r;
1609 :
1610 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1611 0 : r = unit_set_description(u, d);
1612 0 : if (r < 0)
1613 0 : return r;
1614 :
1615 0 : unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "Description=%s", d);
1616 : }
1617 :
1618 0 : return 1;
1619 : }
1620 :
1621 0 : return 0;
1622 : }
1623 :
1624 0 : static int bus_set_transient_emergency_action(
1625 : Unit *u,
1626 : const char *name,
1627 : EmergencyAction *p,
1628 : sd_bus_message *message,
1629 : UnitWriteFlags flags,
1630 : sd_bus_error *error) {
1631 :
1632 : const char *s;
1633 : EmergencyAction v;
1634 : int r;
1635 : bool system;
1636 :
1637 0 : assert(p);
1638 :
1639 0 : r = sd_bus_message_read(message, "s", &s);
1640 0 : if (r < 0)
1641 0 : return r;
1642 :
1643 0 : system = MANAGER_IS_SYSTEM(u->manager);
1644 0 : r = parse_emergency_action(s, system, &v);
1645 0 : if (r < 0)
1646 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1647 : r == -EOPNOTSUPP ? "%s setting invalid for manager type: %s"
1648 : : "Invalid %s setting: %s",
1649 : name, s);
1650 :
1651 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1652 0 : *p = v;
1653 0 : unit_write_settingf(u, flags, name,
1654 : "%s=%s", name, s);
1655 : }
1656 :
1657 0 : return 1;
1658 : }
1659 :
1660 0 : static int bus_set_transient_exit_status(
1661 : Unit *u,
1662 : const char *name,
1663 : int *p,
1664 : sd_bus_message *message,
1665 : UnitWriteFlags flags,
1666 : sd_bus_error *error) {
1667 :
1668 : int32_t k;
1669 : int r;
1670 :
1671 0 : assert(p);
1672 :
1673 0 : r = sd_bus_message_read(message, "i", &k);
1674 0 : if (r < 0)
1675 0 : return r;
1676 :
1677 0 : if (k > 255)
1678 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Exit status must be in range 0…255 or negative.");
1679 :
1680 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1681 0 : *p = k < 0 ? -1 : k;
1682 :
1683 0 : if (k < 0)
1684 0 : unit_write_settingf(u, flags, name, "%s=", name);
1685 : else
1686 0 : unit_write_settingf(u, flags, name, "%s=%i", name, k);
1687 : }
1688 :
1689 0 : return 1;
1690 : }
1691 :
1692 0 : static BUS_DEFINE_SET_TRANSIENT_PARSE(collect_mode, CollectMode, collect_mode_from_string);
1693 0 : static BUS_DEFINE_SET_TRANSIENT_PARSE(job_mode, JobMode, job_mode_from_string);
1694 :
1695 0 : static int bus_set_transient_conditions(
1696 : Unit *u,
1697 : const char *name,
1698 : Condition **list,
1699 : bool is_condition,
1700 : sd_bus_message *message,
1701 : UnitWriteFlags flags,
1702 : sd_bus_error *error) {
1703 :
1704 : const char *type_name, *param;
1705 : int trigger, negate, r;
1706 0 : bool empty = true;
1707 :
1708 0 : assert(list);
1709 :
1710 0 : r = sd_bus_message_enter_container(message, 'a', "(sbbs)");
1711 0 : if (r < 0)
1712 0 : return r;
1713 :
1714 0 : while ((r = sd_bus_message_read(message, "(sbbs)", &type_name, &trigger, &negate, ¶m)) > 0) {
1715 : ConditionType t;
1716 :
1717 0 : t = is_condition ? condition_type_from_string(type_name) : assert_type_from_string(type_name);
1718 0 : if (t < 0)
1719 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid condition type: %s", type_name);
1720 :
1721 0 : if (t != CONDITION_NULL) {
1722 0 : if (isempty(param))
1723 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Condition parameter in %s is empty", type_name);
1724 :
1725 0 : if (condition_takes_path(t) && !path_is_absolute(param))
1726 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path in condition %s is not absolute: %s", type_name, param);
1727 : } else
1728 0 : param = NULL;
1729 :
1730 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1731 : Condition *c;
1732 :
1733 0 : c = condition_new(t, param, trigger, negate);
1734 0 : if (!c)
1735 0 : return -ENOMEM;
1736 :
1737 0 : LIST_PREPEND(conditions, *list, c);
1738 :
1739 0 : if (t != CONDITION_NULL)
1740 0 : unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name,
1741 : "%s=%s%s%s", type_name,
1742 0 : trigger ? "|" : "", negate ? "!" : "", param);
1743 : else
1744 0 : unit_write_settingf(u, flags, name,
1745 : "%s=%s%s", type_name,
1746 0 : trigger ? "|" : "", yes_no(!negate));
1747 : }
1748 :
1749 0 : empty = false;
1750 : }
1751 0 : if (r < 0)
1752 0 : return r;
1753 :
1754 0 : r = sd_bus_message_exit_container(message);
1755 0 : if (r < 0)
1756 0 : return r;
1757 :
1758 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags) && empty) {
1759 0 : *list = condition_free_list(*list);
1760 0 : unit_write_settingf(u, flags, name, "%sNull=", is_condition ? "Condition" : "Assert");
1761 : }
1762 :
1763 0 : return 1;
1764 : }
1765 :
1766 0 : static int bus_unit_set_transient_property(
1767 : Unit *u,
1768 : const char *name,
1769 : sd_bus_message *message,
1770 : UnitWriteFlags flags,
1771 : sd_bus_error *error) {
1772 :
1773 0 : UnitDependency d = _UNIT_DEPENDENCY_INVALID;
1774 : int r;
1775 :
1776 0 : assert(u);
1777 0 : assert(name);
1778 0 : assert(message);
1779 :
1780 : /* Handles settings when transient units are created. This settings cannot be altered anymore after the unit
1781 : * has been created. */
1782 :
1783 0 : if (streq(name, "SourcePath"))
1784 0 : return bus_set_transient_path(u, name, &u->source_path, message, flags, error);
1785 :
1786 0 : if (streq(name, "StopWhenUnneeded"))
1787 0 : return bus_set_transient_bool(u, name, &u->stop_when_unneeded, message, flags, error);
1788 :
1789 0 : if (streq(name, "RefuseManualStart"))
1790 0 : return bus_set_transient_bool(u, name, &u->refuse_manual_start, message, flags, error);
1791 :
1792 0 : if (streq(name, "RefuseManualStop"))
1793 0 : return bus_set_transient_bool(u, name, &u->refuse_manual_stop, message, flags, error);
1794 :
1795 0 : if (streq(name, "AllowIsolate"))
1796 0 : return bus_set_transient_bool(u, name, &u->allow_isolate, message, flags, error);
1797 :
1798 0 : if (streq(name, "DefaultDependencies"))
1799 0 : return bus_set_transient_bool(u, name, &u->default_dependencies, message, flags, error);
1800 :
1801 0 : if (streq(name, "OnFailureJobMode"))
1802 0 : return bus_set_transient_job_mode(u, name, &u->on_failure_job_mode, message, flags, error);
1803 :
1804 0 : if (streq(name, "IgnoreOnIsolate"))
1805 0 : return bus_set_transient_bool(u, name, &u->ignore_on_isolate, message, flags, error);
1806 :
1807 0 : if (streq(name, "JobTimeoutUSec")) {
1808 0 : r = bus_set_transient_usec_fix_0(u, name, &u->job_timeout, message, flags, error);
1809 0 : if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags) && !u->job_running_timeout_set)
1810 0 : u->job_running_timeout = u->job_timeout;
1811 : }
1812 :
1813 0 : if (streq(name, "JobRunningTimeoutUSec")) {
1814 0 : r = bus_set_transient_usec_fix_0(u, name, &u->job_running_timeout, message, flags, error);
1815 0 : if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags))
1816 0 : u->job_running_timeout_set = true;
1817 :
1818 0 : return r;
1819 : }
1820 :
1821 0 : if (streq(name, "JobTimeoutAction"))
1822 0 : return bus_set_transient_emergency_action(u, name, &u->job_timeout_action, message, flags, error);
1823 :
1824 0 : if (streq(name, "JobTimeoutRebootArgument"))
1825 0 : return bus_set_transient_string(u, name, &u->job_timeout_reboot_arg, message, flags, error);
1826 :
1827 0 : if (streq(name, "StartLimitIntervalUSec"))
1828 0 : return bus_set_transient_usec(u, name, &u->start_limit.interval, message, flags, error);
1829 :
1830 0 : if (streq(name, "StartLimitBurst"))
1831 0 : return bus_set_transient_unsigned(u, name, &u->start_limit.burst, message, flags, error);
1832 :
1833 0 : if (streq(name, "StartLimitAction"))
1834 0 : return bus_set_transient_emergency_action(u, name, &u->start_limit_action, message, flags, error);
1835 :
1836 0 : if (streq(name, "FailureAction"))
1837 0 : return bus_set_transient_emergency_action(u, name, &u->failure_action, message, flags, error);
1838 :
1839 0 : if (streq(name, "SuccessAction"))
1840 0 : return bus_set_transient_emergency_action(u, name, &u->success_action, message, flags, error);
1841 :
1842 0 : if (streq(name, "FailureActionExitStatus"))
1843 0 : return bus_set_transient_exit_status(u, name, &u->failure_action_exit_status, message, flags, error);
1844 :
1845 0 : if (streq(name, "SuccessActionExitStatus"))
1846 0 : return bus_set_transient_exit_status(u, name, &u->success_action_exit_status, message, flags, error);
1847 :
1848 0 : if (streq(name, "RebootArgument"))
1849 0 : return bus_set_transient_string(u, name, &u->reboot_arg, message, flags, error);
1850 :
1851 0 : if (streq(name, "CollectMode"))
1852 0 : return bus_set_transient_collect_mode(u, name, &u->collect_mode, message, flags, error);
1853 :
1854 0 : if (streq(name, "Conditions"))
1855 0 : return bus_set_transient_conditions(u, name, &u->conditions, true, message, flags, error);
1856 :
1857 0 : if (streq(name, "Asserts"))
1858 0 : return bus_set_transient_conditions(u, name, &u->asserts, false, message, flags, error);
1859 :
1860 0 : if (streq(name, "Documentation")) {
1861 0 : _cleanup_strv_free_ char **l = NULL;
1862 : char **p;
1863 :
1864 0 : r = sd_bus_message_read_strv(message, &l);
1865 0 : if (r < 0)
1866 0 : return r;
1867 :
1868 0 : STRV_FOREACH(p, l) {
1869 0 : if (!documentation_url_is_valid(*p))
1870 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid URL in %s: %s", name, *p);
1871 : }
1872 :
1873 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1874 0 : if (strv_isempty(l)) {
1875 0 : u->documentation = strv_free(u->documentation);
1876 0 : unit_write_settingf(u, flags, name, "%s=", name);
1877 : } else {
1878 0 : strv_extend_strv(&u->documentation, l, false);
1879 :
1880 0 : STRV_FOREACH(p, l)
1881 0 : unit_write_settingf(u, flags, name, "%s=%s", name, *p);
1882 : }
1883 : }
1884 :
1885 0 : return 1;
1886 :
1887 0 : } else if (streq(name, "Slice")) {
1888 : Unit *slice;
1889 : const char *s;
1890 :
1891 0 : if (!UNIT_HAS_CGROUP_CONTEXT(u))
1892 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "The slice property is only available for units with control groups.");
1893 0 : if (u->type == UNIT_SLICE)
1894 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Slice may not be set for slice units.");
1895 0 : if (unit_has_name(u, SPECIAL_INIT_SCOPE))
1896 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot set slice for init.scope");
1897 :
1898 0 : r = sd_bus_message_read(message, "s", &s);
1899 0 : if (r < 0)
1900 0 : return r;
1901 :
1902 0 : if (!unit_name_is_valid(s, UNIT_NAME_PLAIN))
1903 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name '%s'", s);
1904 :
1905 : /* Note that we do not dispatch the load queue here yet, as we don't want our own transient unit to be
1906 : * loaded while we are still setting it up. Or in other words, we use manager_load_unit_prepare()
1907 : * instead of manager_load_unit() on purpose, here. */
1908 0 : r = manager_load_unit_prepare(u->manager, s, NULL, error, &slice);
1909 0 : if (r < 0)
1910 0 : return r;
1911 :
1912 0 : if (slice->type != UNIT_SLICE)
1913 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit name '%s' is not a slice", s);
1914 :
1915 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1916 0 : r = unit_set_slice(u, slice);
1917 0 : if (r < 0)
1918 0 : return r;
1919 :
1920 0 : unit_write_settingf(u, flags|UNIT_PRIVATE, name, "Slice=%s", s);
1921 : }
1922 :
1923 0 : return 1;
1924 :
1925 0 : } else if (streq(name, "RequiresMountsFor")) {
1926 0 : _cleanup_strv_free_ char **l = NULL;
1927 : char **p;
1928 :
1929 0 : r = sd_bus_message_read_strv(message, &l);
1930 0 : if (r < 0)
1931 0 : return r;
1932 :
1933 0 : STRV_FOREACH(p, l) {
1934 0 : path_simplify(*p, true);
1935 :
1936 0 : if (!path_is_absolute(*p))
1937 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s is not absolute: %s", name, *p);
1938 :
1939 0 : if (!path_is_valid(*p))
1940 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s has invalid length: %s", name, *p);
1941 :
1942 0 : if (!path_is_normalized(*p))
1943 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s is not normalized: %s", name, *p);
1944 :
1945 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1946 0 : r = unit_require_mounts_for(u, *p, UNIT_DEPENDENCY_FILE);
1947 0 : if (r < 0)
1948 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Failed to add required mount \"%s\": %m", *p);
1949 :
1950 0 : unit_write_settingf(u, flags, name, "%s=%s", name, *p);
1951 : }
1952 : }
1953 :
1954 0 : return 1;
1955 : }
1956 :
1957 0 : if (streq(name, "RequiresOverridable"))
1958 0 : d = UNIT_REQUIRES; /* redirect for obsolete unit dependency type */
1959 0 : else if (streq(name, "RequisiteOverridable"))
1960 0 : d = UNIT_REQUISITE; /* same here */
1961 : else
1962 0 : d = unit_dependency_from_string(name);
1963 :
1964 0 : if (d >= 0) {
1965 : const char *other;
1966 :
1967 0 : r = sd_bus_message_enter_container(message, 'a', "s");
1968 0 : if (r < 0)
1969 0 : return r;
1970 :
1971 0 : while ((r = sd_bus_message_read(message, "s", &other)) > 0) {
1972 0 : if (!unit_name_is_valid(other, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE))
1973 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name %s", other);
1974 :
1975 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1976 0 : _cleanup_free_ char *label = NULL;
1977 :
1978 0 : r = unit_add_dependency_by_name(u, d, other, true, UNIT_DEPENDENCY_FILE);
1979 0 : if (r < 0)
1980 0 : return r;
1981 :
1982 0 : label = strjoin(name, "-", other);
1983 0 : if (!label)
1984 0 : return -ENOMEM;
1985 :
1986 0 : unit_write_settingf(u, flags, label, "%s=%s", unit_dependency_to_string(d), other);
1987 : }
1988 :
1989 : }
1990 0 : if (r < 0)
1991 0 : return r;
1992 :
1993 0 : r = sd_bus_message_exit_container(message);
1994 0 : if (r < 0)
1995 0 : return r;
1996 :
1997 0 : return 1;
1998 :
1999 0 : } else if (streq(name, "AddRef")) {
2000 :
2001 : int b;
2002 :
2003 : /* Why is this called "AddRef" rather than just "Ref", or "Reference"? There's already a "Ref()" method
2004 : * on the Unit interface, and it's probably not a good idea to expose a property and a method on the
2005 : * same interface (well, strictly speaking AddRef isn't exposed as full property, we just read it for
2006 : * transient units, but still). And "References" and "ReferencedBy" is already used as unit reference
2007 : * dependency type, hence let's not confuse things with that.
2008 : *
2009 : * Note that we don't actually add the reference to the bus track. We do that only after the setup of
2010 : * the transient unit is complete, so that setting this property multiple times in the same transient
2011 : * unit creation call doesn't count as individual references. */
2012 :
2013 0 : r = sd_bus_message_read(message, "b", &b);
2014 0 : if (r < 0)
2015 0 : return r;
2016 :
2017 0 : if (!UNIT_WRITE_FLAGS_NOOP(flags))
2018 0 : u->bus_track_add = b;
2019 :
2020 0 : return 1;
2021 : }
2022 :
2023 0 : return 0;
2024 : }
2025 :
2026 0 : int bus_unit_set_properties(
2027 : Unit *u,
2028 : sd_bus_message *message,
2029 : UnitWriteFlags flags,
2030 : bool commit,
2031 : sd_bus_error *error) {
2032 :
2033 0 : bool for_real = false;
2034 0 : unsigned n = 0;
2035 : int r;
2036 :
2037 0 : assert(u);
2038 0 : assert(message);
2039 :
2040 : /* We iterate through the array twice. First run we just check
2041 : * if all passed data is valid, second run actually applies
2042 : * it. This is to implement transaction-like behaviour without
2043 : * actually providing full transactions. */
2044 :
2045 0 : r = sd_bus_message_enter_container(message, 'a', "(sv)");
2046 0 : if (r < 0)
2047 0 : return r;
2048 :
2049 0 : for (;;) {
2050 : const char *name;
2051 : UnitWriteFlags f;
2052 :
2053 0 : r = sd_bus_message_enter_container(message, 'r', "sv");
2054 0 : if (r < 0)
2055 0 : return r;
2056 0 : if (r == 0) {
2057 0 : if (for_real || UNIT_WRITE_FLAGS_NOOP(flags))
2058 : break;
2059 :
2060 : /* Reached EOF. Let's try again, and this time for realz... */
2061 0 : r = sd_bus_message_rewind(message, false);
2062 0 : if (r < 0)
2063 0 : return r;
2064 :
2065 0 : for_real = true;
2066 0 : continue;
2067 : }
2068 :
2069 0 : r = sd_bus_message_read(message, "s", &name);
2070 0 : if (r < 0)
2071 0 : return r;
2072 :
2073 0 : if (!UNIT_VTABLE(u)->bus_set_property)
2074 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Objects of this type do not support setting properties.");
2075 :
2076 0 : r = sd_bus_message_enter_container(message, 'v', NULL);
2077 0 : if (r < 0)
2078 0 : return r;
2079 :
2080 : /* If not for real, then mask out the two target flags */
2081 0 : f = for_real ? flags : (flags & ~(UNIT_RUNTIME|UNIT_PERSISTENT));
2082 :
2083 0 : r = UNIT_VTABLE(u)->bus_set_property(u, name, message, f, error);
2084 0 : if (r == 0 && u->transient && u->load_state == UNIT_STUB)
2085 0 : r = bus_unit_set_transient_property(u, name, message, f, error);
2086 0 : if (r == 0)
2087 0 : r = bus_unit_set_live_property(u, name, message, f, error);
2088 0 : if (r < 0)
2089 0 : return r;
2090 :
2091 0 : if (r == 0)
2092 0 : return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Cannot set property %s, or unknown property.", name);
2093 :
2094 0 : r = sd_bus_message_exit_container(message);
2095 0 : if (r < 0)
2096 0 : return r;
2097 :
2098 0 : r = sd_bus_message_exit_container(message);
2099 0 : if (r < 0)
2100 0 : return r;
2101 :
2102 0 : n += for_real;
2103 : }
2104 :
2105 0 : r = sd_bus_message_exit_container(message);
2106 0 : if (r < 0)
2107 0 : return r;
2108 :
2109 0 : if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties)
2110 0 : UNIT_VTABLE(u)->bus_commit_properties(u);
2111 :
2112 0 : return n;
2113 : }
2114 :
2115 284 : int bus_unit_validate_load_state(Unit *u, sd_bus_error *error) {
2116 284 : assert(u);
2117 :
2118 : /* Generates a pretty error if a unit isn't properly loaded. */
2119 :
2120 284 : switch (u->load_state) {
2121 :
2122 214 : case UNIT_LOADED:
2123 214 : return 0;
2124 :
2125 70 : case UNIT_NOT_FOUND:
2126 70 : return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not found.", u->id);
2127 :
2128 0 : case UNIT_BAD_SETTING:
2129 0 : return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING, "Unit %s has a bad unit file setting.", u->id);
2130 :
2131 0 : case UNIT_ERROR: /* Only show .load_error in UNIT_ERROR state */
2132 0 : return sd_bus_error_set_errnof(error, u->load_error, "Unit %s failed to load properly: %m.", u->id);
2133 :
2134 0 : case UNIT_MASKED:
2135 0 : return sd_bus_error_setf(error, BUS_ERROR_UNIT_MASKED, "Unit %s is masked.", u->id);
2136 :
2137 0 : case UNIT_STUB:
2138 : case UNIT_MERGED:
2139 : default:
2140 0 : return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unexpected load state of unit %s", u->id);
2141 : }
2142 : }
2143 :
2144 0 : static int bus_unit_track_handler(sd_bus_track *t, void *userdata) {
2145 0 : Unit *u = userdata;
2146 :
2147 0 : assert(t);
2148 0 : assert(u);
2149 :
2150 0 : u->bus_track = sd_bus_track_unref(u->bus_track); /* make sure we aren't called again */
2151 :
2152 : /* If the client that tracks us disappeared, then there's reason to believe that the cgroup is empty now too,
2153 : * let's see */
2154 0 : unit_add_to_cgroup_empty_queue(u);
2155 :
2156 : /* Also add the unit to the GC queue, after all if the client left it might be time to GC this unit */
2157 0 : unit_add_to_gc_queue(u);
2158 :
2159 0 : return 0;
2160 : }
2161 :
2162 0 : static int bus_unit_allocate_bus_track(Unit *u) {
2163 : int r;
2164 :
2165 0 : assert(u);
2166 :
2167 0 : if (u->bus_track)
2168 0 : return 0;
2169 :
2170 0 : r = sd_bus_track_new(u->manager->api_bus, &u->bus_track, bus_unit_track_handler, u);
2171 0 : if (r < 0)
2172 0 : return r;
2173 :
2174 0 : r = sd_bus_track_set_recursive(u->bus_track, true);
2175 0 : if (r < 0) {
2176 0 : u->bus_track = sd_bus_track_unref(u->bus_track);
2177 0 : return r;
2178 : }
2179 :
2180 0 : return 0;
2181 : }
2182 :
2183 0 : int bus_unit_track_add_name(Unit *u, const char *name) {
2184 : int r;
2185 :
2186 0 : assert(u);
2187 :
2188 0 : r = bus_unit_allocate_bus_track(u);
2189 0 : if (r < 0)
2190 0 : return r;
2191 :
2192 0 : return sd_bus_track_add_name(u->bus_track, name);
2193 : }
2194 :
2195 0 : int bus_unit_track_add_sender(Unit *u, sd_bus_message *m) {
2196 : int r;
2197 :
2198 0 : assert(u);
2199 :
2200 0 : r = bus_unit_allocate_bus_track(u);
2201 0 : if (r < 0)
2202 0 : return r;
2203 :
2204 0 : return sd_bus_track_add_sender(u->bus_track, m);
2205 : }
2206 :
2207 0 : int bus_unit_track_remove_sender(Unit *u, sd_bus_message *m) {
2208 0 : assert(u);
2209 :
2210 : /* If we haven't allocated the bus track object yet, then there's definitely no reference taken yet, return an
2211 : * error */
2212 0 : if (!u->bus_track)
2213 0 : return -EUNATCH;
2214 :
2215 0 : return sd_bus_track_remove_sender(u->bus_track, m);
2216 : }
|
