Branch data 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 : 20 : void bus_unit_send_change_signal(Unit *u) {
1382 : : int r;
1383 [ - + ]: 20 : assert(u);
1384 : :
1385 [ - + ]: 20 : 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 [ + + ]: 20 : if (!u->id)
1391 : 8 : return;
1392 : :
1393 [ - + ]: 12 : r = bus_foreach_bus(u->manager, u->bus_track, u->sent_dbus_new_signal ? send_changed_signal : send_new_signal, u);
1394 [ - + ]: 12 : if (r < 0)
1395 [ # # ]: 0 : log_unit_debug_errno(u, r, "Failed to send unit change signal for %s: %m", u->id);
1396 : :
1397 : 12 : u->sent_dbus_new_signal = true;
1398 : : }
1399 : :
1400 : 7484 : 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 [ + - ]: 7484 : if (!u->in_dbus_queue) /* If not enqueued, don't bother */
1407 : 7484 : 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 : 8728 : void bus_unit_send_removed_signal(Unit *u) {
1451 : : int r;
1452 [ - + ]: 8728 : assert(u);
1453 : :
1454 [ + + - + ]: 8728 : if (!u->sent_dbus_new_signal || u->in_dbus_queue)
1455 : 20 : bus_unit_send_change_signal(u);
1456 : :
1457 [ + + ]: 8728 : if (!u->id)
1458 : 8 : return;
1459 : :
1460 : 8720 : r = bus_foreach_bus(u->manager, u->bus_track, send_removed_signal, u);
1461 [ - + ]: 8720 : 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 : 1136 : int bus_unit_validate_load_state(Unit *u, sd_bus_error *error) {
2116 [ - + ]: 1136 : assert(u);
2117 : :
2118 : : /* Generates a pretty error if a unit isn't properly loaded. */
2119 : :
2120 [ + + - - : 1136 : switch (u->load_state) {
- - ]
2121 : :
2122 : 856 : case UNIT_LOADED:
2123 : 856 : return 0;
2124 : :
2125 : 280 : case UNIT_NOT_FOUND:
2126 : 280 : 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 : : }
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