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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
a7334b09 | 2 | |
718db961 | 3 | #include "sd-bus.h" |
07630cea | 4 | |
b5efdb8a | 5 | #include "alloc-util.h" |
906c06f6 | 6 | #include "bpf-firewall.h" |
07630cea | 7 | #include "bus-common-errors.h" |
40af3d02 | 8 | #include "bus-get-properties.h" |
269e4d2d | 9 | #include "bus-polkit.h" |
4ac08d8a | 10 | #include "bus-util.h" |
07630cea | 11 | #include "cgroup-util.h" |
faa781cf | 12 | #include "condition.h" |
c5a97ed1 | 13 | #include "dbus-job.h" |
c44a285c | 14 | #include "dbus-manager.h" |
8752c575 | 15 | #include "dbus-unit.h" |
faa781cf | 16 | #include "dbus-util.h" |
07630cea | 17 | #include "dbus.h" |
291d565a | 18 | #include "fd-util.h" |
5cfa33e0 | 19 | #include "install.h" |
8752c575 | 20 | #include "locale-util.h" |
ea430986 | 21 | #include "log.h" |
faa781cf | 22 | #include "path-util.h" |
291d565a | 23 | #include "process-util.h" |
e2417e41 | 24 | #include "selinux-access.h" |
53964fd2 | 25 | #include "service.h" |
6eb7c172 | 26 | #include "signal-util.h" |
efdb0237 | 27 | #include "special.h" |
83f18c91 | 28 | #include "string-table.h" |
07630cea LP |
29 | #include "string-util.h" |
30 | #include "strv.h" | |
ee104e11 | 31 | #include "user-util.h" |
faa781cf | 32 | #include "web-util.h" |
718db961 | 33 | |
5afe510c | 34 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_collect_mode, collect_mode, CollectMode); |
718db961 | 35 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_load_state, unit_load_state, UnitLoadState); |
d420282b | 36 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_job_mode, job_mode, JobMode); |
cb7f88fc YW |
37 | static BUS_DEFINE_PROPERTY_GET(property_get_description, "s", Unit, unit_description); |
38 | static BUS_DEFINE_PROPERTY_GET2(property_get_active_state, "s", Unit, unit_active_state, unit_active_state_to_string); | |
d9e45bc3 | 39 | static BUS_DEFINE_PROPERTY_GET2(property_get_freezer_state, "s", Unit, unit_freezer_state, freezer_state_to_string); |
cb7f88fc YW |
40 | static BUS_DEFINE_PROPERTY_GET(property_get_sub_state, "s", Unit, unit_sub_state_to_string); |
41 | static BUS_DEFINE_PROPERTY_GET2(property_get_unit_file_state, "s", Unit, unit_get_unit_file_state, unit_file_state_to_string); | |
42 | static BUS_DEFINE_PROPERTY_GET(property_get_can_reload, "b", Unit, unit_can_reload); | |
874bd264 YW |
43 | static BUS_DEFINE_PROPERTY_GET(property_get_can_start, "b", Unit, unit_can_start_refuse_manual); |
44 | static BUS_DEFINE_PROPERTY_GET(property_get_can_stop, "b", Unit, unit_can_stop_refuse_manual); | |
45 | static BUS_DEFINE_PROPERTY_GET(property_get_can_isolate, "b", Unit, unit_can_isolate_refuse_manual); | |
d9e45bc3 | 46 | static BUS_DEFINE_PROPERTY_GET(property_get_can_freeze, "b", Unit, unit_can_freeze); |
cb7f88fc | 47 | static BUS_DEFINE_PROPERTY_GET(property_get_need_daemon_reload, "b", Unit, unit_need_daemon_reload); |
92c23c5a | 48 | static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_empty_strv, "as", 0); |
718db961 | 49 | |
4d3bac56 LP |
50 | static int property_get_can_clean( |
51 | sd_bus *bus, | |
52 | const char *path, | |
53 | const char *interface, | |
54 | const char *property, | |
55 | sd_bus_message *reply, | |
56 | void *userdata, | |
57 | sd_bus_error *error) { | |
58 | ||
59 | Unit *u = userdata; | |
60 | ExecCleanMask mask; | |
61 | int r; | |
62 | ||
63 | assert(bus); | |
64 | assert(reply); | |
65 | ||
66 | r = unit_can_clean(u, &mask); | |
67 | if (r < 0) | |
68 | return r; | |
69 | ||
70 | r = sd_bus_message_open_container(reply, 'a', "s"); | |
71 | if (r < 0) | |
72 | return r; | |
73 | ||
74 | for (ExecDirectoryType t = 0; t < _EXEC_DIRECTORY_TYPE_MAX; t++) { | |
75 | if (!FLAGS_SET(mask, 1U << t)) | |
76 | continue; | |
77 | ||
78 | r = sd_bus_message_append(reply, "s", exec_resource_type_to_string(t)); | |
79 | if (r < 0) | |
80 | return r; | |
81 | } | |
82 | ||
4fb8f1e8 LP |
83 | if (FLAGS_SET(mask, EXEC_CLEAN_FDSTORE)) { |
84 | r = sd_bus_message_append(reply, "s", "fdstore"); | |
85 | if (r < 0) | |
86 | return r; | |
87 | } | |
88 | ||
4d3bac56 LP |
89 | return sd_bus_message_close_container(reply); |
90 | } | |
91 | ||
718db961 LP |
92 | 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, | |
ebcf1f97 LP |
98 | void *userdata, |
99 | sd_bus_error *error) { | |
718db961 | 100 | |
99534007 | 101 | Unit *u = ASSERT_PTR(userdata); |
718db961 LP |
102 | const char *t; |
103 | int r; | |
ea430986 | 104 | |
718db961 LP |
105 | assert(bus); |
106 | assert(reply); | |
4139c1b2 | 107 | |
718db961 LP |
108 | r = sd_bus_message_open_container(reply, 'a', "s"); |
109 | if (r < 0) | |
110 | return r; | |
4139c1b2 | 111 | |
4562c355 ZJS |
112 | r = sd_bus_message_append(reply, "s", u->id); |
113 | if (r < 0) | |
114 | return r; | |
115 | ||
90e74a66 | 116 | SET_FOREACH(t, u->aliases) { |
718db961 LP |
117 | r = sd_bus_message_append(reply, "s", t); |
118 | if (r < 0) | |
119 | return r; | |
120 | } | |
4139c1b2 | 121 | |
718db961 | 122 | return sd_bus_message_close_container(reply); |
4139c1b2 LP |
123 | } |
124 | ||
718db961 LP |
125 | static int property_get_following( |
126 | sd_bus *bus, | |
127 | const char *path, | |
128 | const char *interface, | |
129 | const char *property, | |
130 | sd_bus_message *reply, | |
ebcf1f97 LP |
131 | void *userdata, |
132 | sd_bus_error *error) { | |
718db961 LP |
133 | |
134 | Unit *u = userdata, *f; | |
8fe914ec | 135 | |
718db961 LP |
136 | assert(bus); |
137 | assert(reply); | |
8fe914ec LP |
138 | assert(u); |
139 | ||
a7f241db | 140 | f = unit_following(u); |
79a60375 | 141 | return sd_bus_message_append(reply, "s", f ? f->id : NULL); |
8fe914ec LP |
142 | } |
143 | ||
718db961 LP |
144 | static int property_get_dependencies( |
145 | sd_bus *bus, | |
146 | const char *path, | |
147 | const char *interface, | |
148 | const char *property, | |
149 | sd_bus_message *reply, | |
ebcf1f97 LP |
150 | void *userdata, |
151 | sd_bus_error *error) { | |
4ec9a8a4 | 152 | |
15ed3c3a LP |
153 | Unit *u = userdata, *other; |
154 | UnitDependency d; | |
155 | Hashmap *deps; | |
eef85c4a | 156 | void *v; |
718db961 | 157 | int r; |
5301be81 | 158 | |
718db961 LP |
159 | assert(bus); |
160 | assert(reply); | |
15ed3c3a LP |
161 | assert(u); |
162 | ||
163 | d = unit_dependency_from_string(property); | |
164 | assert_se(d >= 0); | |
165 | ||
166 | deps = unit_get_dependencies(u, d); | |
5301be81 | 167 | |
718db961 LP |
168 | r = sd_bus_message_open_container(reply, 'a', "s"); |
169 | if (r < 0) | |
170 | return r; | |
5301be81 | 171 | |
15ed3c3a LP |
172 | HASHMAP_FOREACH_KEY(v, other, deps) { |
173 | r = sd_bus_message_append(reply, "s", other->id); | |
718db961 LP |
174 | if (r < 0) |
175 | return r; | |
176 | } | |
5301be81 | 177 | |
718db961 | 178 | return sd_bus_message_close_container(reply); |
5301be81 LP |
179 | } |
180 | ||
9e615fa3 | 181 | static int property_get_mounts_for( |
99c14018 YW |
182 | sd_bus *bus, |
183 | const char *path, | |
184 | const char *interface, | |
185 | const char *property, | |
186 | sd_bus_message *reply, | |
187 | void *userdata, | |
188 | sd_bus_error *error) { | |
189 | ||
99534007 | 190 | Hashmap **h = ASSERT_PTR(userdata); |
99c14018 YW |
191 | const char *p; |
192 | void *v; | |
193 | int r; | |
194 | ||
195 | assert(bus); | |
196 | assert(reply); | |
197 | ||
198 | r = sd_bus_message_open_container(reply, 'a', "s"); | |
199 | if (r < 0) | |
200 | return r; | |
201 | ||
90e74a66 | 202 | HASHMAP_FOREACH_KEY(v, p, *h) { |
99c14018 YW |
203 | r = sd_bus_message_append(reply, "s", p); |
204 | if (r < 0) | |
205 | return r; | |
206 | } | |
207 | ||
208 | return sd_bus_message_close_container(reply); | |
209 | } | |
210 | ||
d2dc52db LP |
211 | static int property_get_unit_file_preset( |
212 | sd_bus *bus, | |
213 | const char *path, | |
214 | const char *interface, | |
215 | const char *property, | |
216 | sd_bus_message *reply, | |
217 | void *userdata, | |
218 | sd_bus_error *error) { | |
219 | ||
99534007 | 220 | Unit *u = ASSERT_PTR(userdata); |
d2dc52db LP |
221 | int r; |
222 | ||
223 | assert(bus); | |
224 | assert(reply); | |
d2dc52db LP |
225 | |
226 | r = unit_get_unit_file_preset(u); | |
227 | ||
e77e07f6 | 228 | return sd_bus_message_append(reply, "s", preset_action_past_tense_to_string(r)); |
d2dc52db LP |
229 | } |
230 | ||
718db961 LP |
231 | static int property_get_job( |
232 | sd_bus *bus, | |
233 | const char *path, | |
234 | const char *interface, | |
235 | const char *property, | |
236 | sd_bus_message *reply, | |
ebcf1f97 LP |
237 | void *userdata, |
238 | sd_bus_error *error) { | |
718db961 | 239 | |
f93891f3 | 240 | _cleanup_free_ char *p = NULL; |
99534007 | 241 | Job **j = ASSERT_PTR(userdata); |
38131695 | 242 | |
718db961 LP |
243 | assert(bus); |
244 | assert(reply); | |
38131695 | 245 | |
14f7edb0 | 246 | if (!*j) |
718db961 | 247 | return sd_bus_message_append(reply, "(uo)", 0, "/"); |
38131695 | 248 | |
14f7edb0 | 249 | p = job_dbus_path(*j); |
718db961 LP |
250 | if (!p) |
251 | return -ENOMEM; | |
38131695 | 252 | |
14f7edb0 | 253 | return sd_bus_message_append(reply, "(uo)", (*j)->id, p); |
718db961 | 254 | } |
38131695 | 255 | |
718db961 LP |
256 | static int property_get_conditions( |
257 | sd_bus *bus, | |
258 | const char *path, | |
259 | const char *interface, | |
260 | const char *property, | |
261 | sd_bus_message *reply, | |
ebcf1f97 LP |
262 | void *userdata, |
263 | sd_bus_error *error) { | |
45fb0699 | 264 | |
59fccdc5 | 265 | const char *(*to_string)(ConditionType type) = NULL; |
99534007 | 266 | Condition **list = ASSERT_PTR(userdata); |
718db961 | 267 | int r; |
45fb0699 | 268 | |
718db961 LP |
269 | assert(bus); |
270 | assert(reply); | |
59fccdc5 LP |
271 | |
272 | to_string = streq(property, "Asserts") ? assert_type_to_string : condition_type_to_string; | |
45fb0699 | 273 | |
718db961 LP |
274 | r = sd_bus_message_open_container(reply, 'a', "(sbbsi)"); |
275 | if (r < 0) | |
276 | return r; | |
45fb0699 | 277 | |
59fccdc5 | 278 | LIST_FOREACH(conditions, c, *list) { |
cc50ef13 LP |
279 | int tristate; |
280 | ||
281 | tristate = | |
282 | c->result == CONDITION_UNTESTED ? 0 : | |
283 | c->result == CONDITION_SUCCEEDED ? 1 : -1; | |
284 | ||
2c7e050f | 285 | r = sd_bus_message_append(reply, "(sbbsi)", |
59fccdc5 | 286 | to_string(c->type), |
2c7e050f | 287 | c->trigger, c->negate, |
cc50ef13 | 288 | c->parameter, tristate); |
718db961 LP |
289 | if (r < 0) |
290 | return r; | |
45fb0699 | 291 | |
718db961 | 292 | } |
52990c2e | 293 | |
718db961 | 294 | return sd_bus_message_close_container(reply); |
52990c2e ZJS |
295 | } |
296 | ||
718db961 LP |
297 | 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, | |
ebcf1f97 LP |
303 | void *userdata, |
304 | sd_bus_error *error) { | |
52990c2e | 305 | |
4afd3348 | 306 | _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL; |
99534007 | 307 | Unit *u = ASSERT_PTR(userdata); |
fd1e3fd8 | 308 | int r; |
52990c2e | 309 | |
718db961 LP |
310 | assert(bus); |
311 | assert(reply); | |
52990c2e | 312 | |
fd1e3fd8 LP |
313 | r = bus_unit_validate_load_state(u, &e); |
314 | if (r < 0) | |
315 | return sd_bus_message_append(reply, "(ss)", e.name, e.message); | |
52990c2e | 316 | |
fd1e3fd8 | 317 | return sd_bus_message_append(reply, "(ss)", NULL, NULL); |
52990c2e ZJS |
318 | } |
319 | ||
ff68472a ZJS |
320 | static int property_get_markers( |
321 | sd_bus *bus, | |
322 | const char *path, | |
323 | const char *interface, | |
324 | const char *property, | |
325 | sd_bus_message *reply, | |
326 | void *userdata, | |
327 | sd_bus_error *error) { | |
328 | ||
99534007 | 329 | unsigned *markers = ASSERT_PTR(userdata); |
ff68472a ZJS |
330 | int r; |
331 | ||
332 | assert(bus); | |
333 | assert(reply); | |
ff68472a ZJS |
334 | |
335 | r = sd_bus_message_open_container(reply, 'a', "s"); | |
336 | if (r < 0) | |
337 | return r; | |
338 | ||
339 | /* Make sure out values fit in the bitfield. */ | |
340 | assert_cc(_UNIT_MARKER_MAX <= sizeof(((Unit){}).markers) * 8); | |
341 | ||
342 | for (UnitMarker m = 0; m < _UNIT_MARKER_MAX; m++) | |
343 | if (FLAGS_SET(*markers, 1u << m)) { | |
344 | r = sd_bus_message_append(reply, "s", unit_marker_to_string(m)); | |
345 | if (r < 0) | |
346 | return r; | |
347 | } | |
348 | ||
349 | return sd_bus_message_close_container(reply); | |
350 | } | |
351 | ||
50cbaba4 LP |
352 | static const char *const polkit_message_for_job[_JOB_TYPE_MAX] = { |
353 | [JOB_START] = N_("Authentication is required to start '$(unit)'."), | |
354 | [JOB_STOP] = N_("Authentication is required to stop '$(unit)'."), | |
355 | [JOB_RELOAD] = N_("Authentication is required to reload '$(unit)'."), | |
356 | [JOB_RESTART] = N_("Authentication is required to restart '$(unit)'."), | |
357 | [JOB_TRY_RESTART] = N_("Authentication is required to restart '$(unit)'."), | |
358 | }; | |
359 | ||
1d22e906 | 360 | int bus_unit_method_start_generic( |
1d22e906 LP |
361 | sd_bus_message *message, |
362 | Unit *u, | |
363 | JobType job_type, | |
364 | bool reload_if_possible, | |
365 | sd_bus_error *error) { | |
366 | ||
f4328267 | 367 | BusUnitQueueFlags job_flags = reload_if_possible ? BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE : 0; |
e59ba56d | 368 | const char *smode, *verb; |
718db961 LP |
369 | JobMode mode; |
370 | int r; | |
9f39404c | 371 | |
718db961 | 372 | assert(message); |
9f39404c | 373 | assert(u); |
718db961 | 374 | assert(job_type >= 0 && job_type < _JOB_TYPE_MAX); |
9f39404c | 375 | |
61ea63f1 EV |
376 | r = mac_selinux_unit_access_check( |
377 | u, message, | |
94bd7323 EV |
378 | job_type_to_access_method(job_type), |
379 | error); | |
1d22e906 LP |
380 | if (r < 0) |
381 | return r; | |
382 | ||
718db961 LP |
383 | r = sd_bus_message_read(message, "s", &smode); |
384 | if (r < 0) | |
ebcf1f97 | 385 | return r; |
9f39404c | 386 | |
718db961 LP |
387 | mode = job_mode_from_string(smode); |
388 | if (mode < 0) | |
ebcf1f97 | 389 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode); |
9f39404c | 390 | |
88ced61b | 391 | if (reload_if_possible) |
e59ba56d | 392 | verb = strjoina("reload-or-", job_type_to_string(job_type)); |
88ced61b | 393 | else |
e59ba56d | 394 | verb = job_type_to_string(job_type); |
88ced61b | 395 | |
f4328267 LB |
396 | if (sd_bus_message_is_method_call(message, NULL, "StartUnitWithFlags")) { |
397 | uint64_t input_flags = 0; | |
398 | ||
399 | r = sd_bus_message_read(message, "t", &input_flags); | |
400 | if (r < 0) | |
401 | return r; | |
402 | /* Let clients know that this version doesn't support any flags at the moment. */ | |
403 | if (input_flags != 0) | |
404 | return sd_bus_reply_method_errorf(message, SD_BUS_ERROR_INVALID_ARGS, | |
405 | "Invalid 'flags' parameter '%" PRIu64 "'", | |
406 | input_flags); | |
f4328267 LB |
407 | } |
408 | ||
88ced61b MC |
409 | r = bus_verify_manage_units_async_full( |
410 | u, | |
411 | verb, | |
ebfb1b57 | 412 | polkit_message_for_job[job_type], |
88ced61b MC |
413 | message, |
414 | error); | |
1d22e906 LP |
415 | if (r < 0) |
416 | return r; | |
417 | if (r == 0) | |
418 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
419 | ||
f4328267 | 420 | return bus_unit_queue_job(message, u, job_type, mode, job_flags, error); |
9f39404c LP |
421 | } |
422 | ||
7e570d57 | 423 | static int bus_unit_method_start(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
19070062 | 424 | return bus_unit_method_start_generic(message, userdata, JOB_START, false, error); |
718db961 | 425 | } |
b548631a | 426 | |
7e570d57 | 427 | static int bus_unit_method_stop(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
19070062 | 428 | return bus_unit_method_start_generic(message, userdata, JOB_STOP, false, error); |
718db961 LP |
429 | } |
430 | ||
7e570d57 | 431 | static int bus_unit_method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
19070062 | 432 | return bus_unit_method_start_generic(message, userdata, JOB_RELOAD, false, error); |
718db961 | 433 | } |
0a524ba7 | 434 | |
7e570d57 | 435 | static int bus_unit_method_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
19070062 | 436 | return bus_unit_method_start_generic(message, userdata, JOB_RESTART, false, error); |
718db961 | 437 | } |
8a0867d6 | 438 | |
7e570d57 | 439 | static int bus_unit_method_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
19070062 | 440 | return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, false, error); |
718db961 | 441 | } |
cad45ba1 | 442 | |
7e570d57 | 443 | static int bus_unit_method_reload_or_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
19070062 | 444 | return bus_unit_method_start_generic(message, userdata, JOB_RESTART, true, error); |
718db961 | 445 | } |
8a0867d6 | 446 | |
7e570d57 | 447 | static int bus_unit_method_reload_or_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
19070062 | 448 | return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, true, error); |
718db961 | 449 | } |
8a0867d6 | 450 | |
50cbaba4 LP |
451 | int bus_unit_method_enqueue_job(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
452 | BusUnitQueueFlags flags = BUS_UNIT_QUEUE_VERBOSE_REPLY; | |
453 | const char *jtype, *smode; | |
99534007 | 454 | Unit *u = ASSERT_PTR(userdata); |
50cbaba4 LP |
455 | JobType type; |
456 | JobMode mode; | |
457 | int r; | |
458 | ||
459 | assert(message); | |
50cbaba4 LP |
460 | |
461 | r = sd_bus_message_read(message, "ss", &jtype, &smode); | |
462 | if (r < 0) | |
463 | return r; | |
464 | ||
465 | /* Parse the two magic reload types "reload-or-…" manually */ | |
466 | if (streq(jtype, "reload-or-restart")) { | |
467 | type = JOB_RESTART; | |
468 | flags |= BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE; | |
469 | } else if (streq(jtype, "reload-or-try-restart")) { | |
470 | type = JOB_TRY_RESTART; | |
471 | flags |= BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE; | |
472 | } else { | |
473 | /* And the rest generically */ | |
474 | type = job_type_from_string(jtype); | |
475 | if (type < 0) | |
476 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job type %s invalid", jtype); | |
477 | } | |
478 | ||
479 | mode = job_mode_from_string(smode); | |
480 | if (mode < 0) | |
481 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode); | |
482 | ||
483 | r = mac_selinux_unit_access_check( | |
484 | u, message, | |
485 | job_type_to_access_method(type), | |
486 | error); | |
487 | if (r < 0) | |
488 | return r; | |
489 | ||
490 | r = bus_verify_manage_units_async_full( | |
491 | u, | |
492 | jtype, | |
50cbaba4 | 493 | polkit_message_for_job[type], |
50cbaba4 LP |
494 | message, |
495 | error); | |
496 | if (r < 0) | |
497 | return r; | |
498 | if (r == 0) | |
499 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
500 | ||
501 | return bus_unit_queue_job(message, u, type, mode, flags, error); | |
502 | } | |
503 | ||
19070062 | 504 | int bus_unit_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
99534007 | 505 | Unit *u = ASSERT_PTR(userdata); |
a721cd00 | 506 | int32_t value = 0; |
718db961 LP |
507 | const char *swho; |
508 | int32_t signo; | |
509 | KillWho who; | |
a721cd00 | 510 | int r, code; |
5632e374 | 511 | |
718db961 | 512 | assert(message); |
cad45ba1 | 513 | |
1d22e906 | 514 | r = mac_selinux_unit_access_check(u, message, "stop", error); |
283868e1 SW |
515 | if (r < 0) |
516 | return r; | |
283868e1 | 517 | |
718db961 LP |
518 | r = sd_bus_message_read(message, "si", &swho, &signo); |
519 | if (r < 0) | |
ebcf1f97 | 520 | return r; |
718db961 | 521 | |
a721cd00 LP |
522 | if (startswith(sd_bus_message_get_member(message), "QueueSignal")) { |
523 | r = sd_bus_message_read(message, "i", &value); | |
524 | if (r < 0) | |
525 | return r; | |
526 | ||
527 | code = SI_QUEUE; | |
528 | } else | |
529 | code = SI_USER; | |
530 | ||
718db961 LP |
531 | if (isempty(swho)) |
532 | who = KILL_ALL; | |
533 | else { | |
534 | who = kill_who_from_string(swho); | |
535 | if (who < 0) | |
a721cd00 | 536 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid who argument: %s", swho); |
718db961 | 537 | } |
5632e374 | 538 | |
6eb7c172 | 539 | if (!SIGNAL_VALID(signo)) |
1b09b81c | 540 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Signal number out of range."); |
8e2af478 | 541 | |
a721cd00 LP |
542 | if (code == SI_QUEUE && !((signo >= SIGRTMIN) && (signo <= SIGRTMAX))) |
543 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, | |
544 | "Value parameter only accepted for realtime signals (SIGRTMIN…SIGRTMAX), refusing for signal SIG%s.", signal_to_string(signo)); | |
545 | ||
88ced61b MC |
546 | r = bus_verify_manage_units_async_full( |
547 | u, | |
548 | "kill", | |
1d445eda | 549 | N_("Authentication is required to send a UNIX signal to the processes of '$(unit)'."), |
88ced61b MC |
550 | message, |
551 | error); | |
ebcf1f97 LP |
552 | if (r < 0) |
553 | return r; | |
1d22e906 LP |
554 | if (r == 0) |
555 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
8e2af478 | 556 | |
a721cd00 | 557 | r = unit_kill(u, who, signo, code, value, error); |
718db961 | 558 | if (r < 0) |
ebcf1f97 | 559 | return r; |
8e2af478 | 560 | |
df2d202e | 561 | return sd_bus_reply_method_return(message, NULL); |
718db961 | 562 | } |
8e2af478 | 563 | |
19070062 | 564 | int bus_unit_method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
99534007 | 565 | Unit *u = ASSERT_PTR(userdata); |
ebcf1f97 | 566 | int r; |
b548631a | 567 | |
718db961 | 568 | assert(message); |
b548631a | 569 | |
1d22e906 | 570 | r = mac_selinux_unit_access_check(u, message, "reload", error); |
283868e1 SW |
571 | if (r < 0) |
572 | return r; | |
283868e1 | 573 | |
88ced61b MC |
574 | r = bus_verify_manage_units_async_full( |
575 | u, | |
576 | "reset-failed", | |
88ced61b MC |
577 | N_("Authentication is required to reset the \"failed\" state of '$(unit)'."), |
578 | message, | |
579 | error); | |
ebcf1f97 LP |
580 | if (r < 0) |
581 | return r; | |
1d22e906 LP |
582 | if (r == 0) |
583 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
b548631a | 584 | |
718db961 | 585 | unit_reset_failed(u); |
b548631a | 586 | |
df2d202e | 587 | return sd_bus_reply_method_return(message, NULL); |
ea430986 LP |
588 | } |
589 | ||
19070062 | 590 | int bus_unit_method_set_properties(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
99534007 | 591 | Unit *u = ASSERT_PTR(userdata); |
718db961 | 592 | int runtime, r; |
ea430986 | 593 | |
ea430986 | 594 | assert(message); |
80fbf05e | 595 | |
1d22e906 | 596 | r = mac_selinux_unit_access_check(u, message, "start", error); |
283868e1 SW |
597 | if (r < 0) |
598 | return r; | |
283868e1 | 599 | |
718db961 LP |
600 | r = sd_bus_message_read(message, "b", &runtime); |
601 | if (r < 0) | |
ebcf1f97 | 602 | return r; |
2cccbca4 | 603 | |
88ced61b MC |
604 | r = bus_verify_manage_units_async_full( |
605 | u, | |
606 | "set-property", | |
88ced61b MC |
607 | N_("Authentication is required to set properties on '$(unit)'."), |
608 | message, | |
609 | error); | |
ebcf1f97 LP |
610 | if (r < 0) |
611 | return r; | |
1d22e906 LP |
612 | if (r == 0) |
613 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
cad45ba1 | 614 | |
ebcf1f97 | 615 | r = bus_unit_set_properties(u, message, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, error); |
718db961 | 616 | if (r < 0) |
ebcf1f97 | 617 | return r; |
2cccbca4 | 618 | |
df2d202e | 619 | return sd_bus_reply_method_return(message, NULL); |
718db961 | 620 | } |
2cccbca4 | 621 | |
05a98afd | 622 | int bus_unit_method_ref(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
99534007 | 623 | Unit *u = ASSERT_PTR(userdata); |
05a98afd LP |
624 | int r; |
625 | ||
626 | assert(message); | |
05a98afd LP |
627 | |
628 | r = mac_selinux_unit_access_check(u, message, "start", error); | |
629 | if (r < 0) | |
630 | return r; | |
631 | ||
632 | r = bus_verify_manage_units_async_full( | |
633 | u, | |
634 | "ref", | |
7b36fb9f | 635 | /* polkit_message= */ NULL, |
05a98afd LP |
636 | message, |
637 | error); | |
638 | if (r < 0) | |
639 | return r; | |
640 | if (r == 0) | |
641 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
642 | ||
643 | r = bus_unit_track_add_sender(u, message); | |
644 | if (r < 0) | |
645 | return r; | |
646 | ||
647 | return sd_bus_reply_method_return(message, NULL); | |
648 | } | |
649 | ||
650 | int bus_unit_method_unref(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
99534007 | 651 | Unit *u = ASSERT_PTR(userdata); |
05a98afd LP |
652 | int r; |
653 | ||
654 | assert(message); | |
05a98afd LP |
655 | |
656 | r = bus_unit_track_remove_sender(u, message); | |
657 | if (r == -EUNATCH) | |
1b09b81c | 658 | return sd_bus_error_set(error, BUS_ERROR_NOT_REFERENCED, "Unit has not been referenced yet."); |
05a98afd LP |
659 | if (r < 0) |
660 | return r; | |
661 | ||
662 | return sd_bus_reply_method_return(message, NULL); | |
663 | } | |
664 | ||
4d3bac56 LP |
665 | int bus_unit_method_clean(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
666 | ExecCleanMask mask = 0; | |
99534007 | 667 | Unit *u = ASSERT_PTR(userdata); |
4d3bac56 LP |
668 | int r; |
669 | ||
670 | assert(message); | |
4d3bac56 LP |
671 | |
672 | r = mac_selinux_unit_access_check(u, message, "stop", error); | |
673 | if (r < 0) | |
674 | return r; | |
675 | ||
676 | r = sd_bus_message_enter_container(message, 'a', "s"); | |
677 | if (r < 0) | |
678 | return r; | |
679 | ||
680 | for (;;) { | |
4fb8f1e8 | 681 | ExecCleanMask m; |
4d3bac56 LP |
682 | const char *i; |
683 | ||
684 | r = sd_bus_message_read(message, "s", &i); | |
685 | if (r < 0) | |
686 | return r; | |
687 | if (r == 0) | |
688 | break; | |
689 | ||
4fb8f1e8 LP |
690 | m = exec_clean_mask_from_string(i); |
691 | if (m < 0) | |
692 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid resource type: %s", i); | |
4d3bac56 | 693 | |
4fb8f1e8 | 694 | mask |= m; |
4d3bac56 LP |
695 | } |
696 | ||
697 | r = sd_bus_message_exit_container(message); | |
698 | if (r < 0) | |
699 | return r; | |
700 | ||
701 | r = bus_verify_manage_units_async_full( | |
702 | u, | |
703 | "clean", | |
4d3bac56 | 704 | N_("Authentication is required to delete files and directories associated with '$(unit)'."), |
4d3bac56 LP |
705 | message, |
706 | error); | |
707 | if (r < 0) | |
708 | return r; | |
709 | if (r == 0) | |
710 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
711 | ||
712 | r = unit_clean(u, mask); | |
713 | if (r == -EOPNOTSUPP) | |
0017be9d | 714 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Unit '%s' does not support cleaning.", u->id); |
4d3bac56 | 715 | if (r == -EUNATCH) |
1b09b81c | 716 | return sd_bus_error_set(error, BUS_ERROR_NOTHING_TO_CLEAN, "No matching resources found."); |
4d3bac56 | 717 | if (r == -EBUSY) |
1b09b81c | 718 | return sd_bus_error_set(error, BUS_ERROR_UNIT_BUSY, "Unit is not inactive or has pending job."); |
4d3bac56 LP |
719 | if (r < 0) |
720 | return r; | |
721 | ||
722 | return sd_bus_reply_method_return(message, NULL); | |
723 | } | |
724 | ||
d9e45bc3 MS |
725 | static int bus_unit_method_freezer_generic(sd_bus_message *message, void *userdata, sd_bus_error *error, FreezerAction action) { |
726 | const char* perm; | |
99534007 | 727 | Unit *u = ASSERT_PTR(userdata); |
d9e45bc3 MS |
728 | bool reply_no_delay = false; |
729 | int r; | |
730 | ||
731 | assert(message); | |
d9e45bc3 MS |
732 | assert(IN_SET(action, FREEZER_FREEZE, FREEZER_THAW)); |
733 | ||
16b6af6a | 734 | perm = action == FREEZER_FREEZE ? "stop" : "start"; |
d9e45bc3 MS |
735 | |
736 | r = mac_selinux_unit_access_check(u, message, perm, error); | |
737 | if (r < 0) | |
738 | return r; | |
739 | ||
740 | r = bus_verify_manage_units_async_full( | |
741 | u, | |
742 | perm, | |
d9e45bc3 | 743 | N_("Authentication is required to freeze or thaw the processes of '$(unit)' unit."), |
d9e45bc3 MS |
744 | message, |
745 | error); | |
746 | if (r < 0) | |
747 | return r; | |
748 | if (r == 0) | |
749 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
750 | ||
16b6af6a | 751 | r = unit_freezer_action(u, action); |
d9e45bc3 | 752 | if (r == -EOPNOTSUPP) |
16b6af6a | 753 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Unit does not support freeze/thaw."); |
d9e45bc3 | 754 | if (r == -EBUSY) |
1b09b81c | 755 | return sd_bus_error_set(error, BUS_ERROR_UNIT_BUSY, "Unit has a pending job."); |
d9e45bc3 | 756 | if (r == -EHOSTDOWN) |
1b09b81c | 757 | return sd_bus_error_set(error, BUS_ERROR_UNIT_INACTIVE, "Unit is inactive."); |
d9e45bc3 | 758 | if (r == -EALREADY) |
16b6af6a AV |
759 | return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Previously requested freezer operation for unit is still in progress."); |
760 | if (r == -ECHILD) | |
761 | return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Unit is frozen by a parent slice."); | |
d9e45bc3 MS |
762 | if (r < 0) |
763 | return r; | |
764 | if (r == 0) | |
765 | reply_no_delay = true; | |
766 | ||
af1e3365 | 767 | if (u->pending_freezer_invocation) { |
3d19e122 | 768 | bus_unit_send_pending_freezer_message(u, true); |
af1e3365 | 769 | assert(!u->pending_freezer_invocation); |
3d19e122 | 770 | } |
d9e45bc3 | 771 | |
af1e3365 | 772 | u->pending_freezer_invocation = sd_bus_message_ref(message); |
d9e45bc3 MS |
773 | |
774 | if (reply_no_delay) { | |
3d19e122 | 775 | r = bus_unit_send_pending_freezer_message(u, false); |
d9e45bc3 MS |
776 | if (r < 0) |
777 | return r; | |
778 | } | |
779 | ||
780 | return 1; | |
781 | } | |
782 | ||
783 | int bus_unit_method_thaw(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
784 | return bus_unit_method_freezer_generic(message, userdata, error, FREEZER_THAW); | |
785 | } | |
786 | ||
787 | int bus_unit_method_freeze(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
788 | return bus_unit_method_freezer_generic(message, userdata, error, FREEZER_FREEZE); | |
789 | } | |
790 | ||
bedea99d LP |
791 | static int property_get_refs( |
792 | sd_bus *bus, | |
793 | const char *path, | |
794 | const char *interface, | |
795 | const char *property, | |
796 | sd_bus_message *reply, | |
797 | void *userdata, | |
798 | sd_bus_error *error) { | |
799 | ||
800 | Unit *u = userdata; | |
bedea99d LP |
801 | int r; |
802 | ||
803 | assert(bus); | |
804 | assert(reply); | |
805 | ||
806 | r = sd_bus_message_open_container(reply, 'a', "s"); | |
807 | if (r < 0) | |
808 | return r; | |
809 | ||
95d1e21e ZJS |
810 | for (const char *i = sd_bus_track_first(u->bus_track); i; i = sd_bus_track_next(u->bus_track)) { |
811 | int c; | |
bedea99d LP |
812 | |
813 | c = sd_bus_track_count_name(u->bus_track, i); | |
814 | if (c < 0) | |
815 | return c; | |
816 | ||
817 | /* Add the item multiple times if the ref count for each is above 1 */ | |
95d1e21e | 818 | for (int k = 0; k < c; k++) { |
bedea99d LP |
819 | r = sd_bus_message_append(reply, "s", i); |
820 | if (r < 0) | |
821 | return r; | |
822 | } | |
823 | } | |
824 | ||
825 | return sd_bus_message_close_container(reply); | |
826 | } | |
827 | ||
718db961 LP |
828 | const sd_bus_vtable bus_unit_vtable[] = { |
829 | SD_BUS_VTABLE_START(0), | |
830 | ||
556089dc | 831 | SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Unit, id), SD_BUS_VTABLE_PROPERTY_CONST), |
4562c355 | 832 | SD_BUS_PROPERTY("Names", "as", property_get_names, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
718db961 | 833 | SD_BUS_PROPERTY("Following", "s", property_get_following, 0, 0), |
15ed3c3a LP |
834 | SD_BUS_PROPERTY("Requires", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
835 | SD_BUS_PROPERTY("Requisite", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
836 | SD_BUS_PROPERTY("Wants", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
837 | SD_BUS_PROPERTY("BindsTo", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
838 | SD_BUS_PROPERTY("PartOf", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
adc1b76c | 839 | SD_BUS_PROPERTY("Upholds", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
15ed3c3a LP |
840 | SD_BUS_PROPERTY("RequiredBy", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
841 | SD_BUS_PROPERTY("RequisiteOf", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
842 | SD_BUS_PROPERTY("WantedBy", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
843 | SD_BUS_PROPERTY("BoundBy", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
adc1b76c | 844 | SD_BUS_PROPERTY("UpheldBy", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
15ed3c3a LP |
845 | SD_BUS_PROPERTY("ConsistsOf", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
846 | SD_BUS_PROPERTY("Conflicts", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
847 | SD_BUS_PROPERTY("ConflictedBy", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
848 | SD_BUS_PROPERTY("Before", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
849 | SD_BUS_PROPERTY("After", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
294446dc LP |
850 | SD_BUS_PROPERTY("OnSuccess", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
851 | SD_BUS_PROPERTY("OnSuccessOf", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
adc1b76c YW |
852 | SD_BUS_PROPERTY("OnFailure", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
853 | SD_BUS_PROPERTY("OnFailureOf", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
15ed3c3a LP |
854 | SD_BUS_PROPERTY("Triggers", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
855 | SD_BUS_PROPERTY("TriggeredBy", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
856 | SD_BUS_PROPERTY("PropagatesReloadTo", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
857 | SD_BUS_PROPERTY("ReloadPropagatedFrom", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
ffec78c0 LP |
858 | SD_BUS_PROPERTY("PropagatesStopTo", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
859 | SD_BUS_PROPERTY("StopPropagatedFrom", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
15ed3c3a | 860 | SD_BUS_PROPERTY("JoinsNamespaceOf", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
d219a2b0 | 861 | SD_BUS_PROPERTY("SliceOf", "as", property_get_dependencies, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
9e615fa3 LB |
862 | SD_BUS_PROPERTY("RequiresMountsFor", "as", property_get_mounts_for, offsetof(Unit, mounts_for[UNIT_MOUNT_REQUIRES]), SD_BUS_VTABLE_PROPERTY_CONST), |
863 | SD_BUS_PROPERTY("WantsMountsFor", "as", property_get_mounts_for, offsetof(Unit, mounts_for[UNIT_MOUNT_WANTS]), SD_BUS_VTABLE_PROPERTY_CONST), | |
556089dc LP |
864 | SD_BUS_PROPERTY("Documentation", "as", NULL, offsetof(Unit, documentation), SD_BUS_VTABLE_PROPERTY_CONST), |
865 | SD_BUS_PROPERTY("Description", "s", property_get_description, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
23e9a7dd | 866 | SD_BUS_PROPERTY("AccessSELinuxContext", "s", NULL, offsetof(Unit, access_selinux_context), SD_BUS_VTABLE_PROPERTY_CONST), |
556089dc | 867 | SD_BUS_PROPERTY("LoadState", "s", property_get_load_state, offsetof(Unit, load_state), SD_BUS_VTABLE_PROPERTY_CONST), |
718db961 | 868 | SD_BUS_PROPERTY("ActiveState", "s", property_get_active_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
d9e45bc3 | 869 | SD_BUS_PROPERTY("FreezerState", "s", property_get_freezer_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
718db961 | 870 | SD_BUS_PROPERTY("SubState", "s", property_get_sub_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
556089dc LP |
871 | SD_BUS_PROPERTY("FragmentPath", "s", NULL, offsetof(Unit, fragment_path), SD_BUS_VTABLE_PROPERTY_CONST), |
872 | SD_BUS_PROPERTY("SourcePath", "s", NULL, offsetof(Unit, source_path), SD_BUS_VTABLE_PROPERTY_CONST), | |
873 | SD_BUS_PROPERTY("DropInPaths", "as", NULL, offsetof(Unit, dropin_paths), SD_BUS_VTABLE_PROPERTY_CONST), | |
718db961 | 874 | SD_BUS_PROPERTY("UnitFileState", "s", property_get_unit_file_state, 0, 0), |
d2dc52db | 875 | SD_BUS_PROPERTY("UnitFilePreset", "s", property_get_unit_file_preset, 0, 0), |
a483fb59 | 876 | BUS_PROPERTY_DUAL_TIMESTAMP("StateChangeTimestamp", offsetof(Unit, state_change_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
718db961 LP |
877 | BUS_PROPERTY_DUAL_TIMESTAMP("InactiveExitTimestamp", offsetof(Unit, inactive_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
878 | BUS_PROPERTY_DUAL_TIMESTAMP("ActiveEnterTimestamp", offsetof(Unit, active_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
879 | BUS_PROPERTY_DUAL_TIMESTAMP("ActiveExitTimestamp", offsetof(Unit, active_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
880 | BUS_PROPERTY_DUAL_TIMESTAMP("InactiveEnterTimestamp", offsetof(Unit, inactive_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
556089dc LP |
881 | SD_BUS_PROPERTY("CanStart", "b", property_get_can_start, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
882 | SD_BUS_PROPERTY("CanStop", "b", property_get_can_stop, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
883 | SD_BUS_PROPERTY("CanReload", "b", property_get_can_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
884 | SD_BUS_PROPERTY("CanIsolate", "b", property_get_can_isolate, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
4d3bac56 | 885 | SD_BUS_PROPERTY("CanClean", "as", property_get_can_clean, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
d9e45bc3 | 886 | SD_BUS_PROPERTY("CanFreeze", "b", property_get_can_freeze, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
14f7edb0 | 887 | SD_BUS_PROPERTY("Job", "(uo)", property_get_job, offsetof(Unit, job), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
556089dc LP |
888 | SD_BUS_PROPERTY("StopWhenUnneeded", "b", bus_property_get_bool, offsetof(Unit, stop_when_unneeded), SD_BUS_VTABLE_PROPERTY_CONST), |
889 | SD_BUS_PROPERTY("RefuseManualStart", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_start), SD_BUS_VTABLE_PROPERTY_CONST), | |
890 | SD_BUS_PROPERTY("RefuseManualStop", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_stop), SD_BUS_VTABLE_PROPERTY_CONST), | |
891 | SD_BUS_PROPERTY("AllowIsolate", "b", bus_property_get_bool, offsetof(Unit, allow_isolate), SD_BUS_VTABLE_PROPERTY_CONST), | |
892 | SD_BUS_PROPERTY("DefaultDependencies", "b", bus_property_get_bool, offsetof(Unit, default_dependencies), SD_BUS_VTABLE_PROPERTY_CONST), | |
559214cb | 893 | SD_BUS_PROPERTY("SurviveFinalKillSignal", "b", bus_property_get_bool, offsetof(Unit, survive_final_kill_signal), SD_BUS_VTABLE_PROPERTY_CONST), |
ecfcf024 VP |
894 | SD_BUS_PROPERTY("OnSuccesJobMode", "s", property_get_job_mode, offsetof(Unit, on_success_job_mode), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), /* deprecated */ |
895 | SD_BUS_PROPERTY("OnSuccessJobMode", "s", property_get_job_mode, offsetof(Unit, on_success_job_mode), SD_BUS_VTABLE_PROPERTY_CONST), | |
556089dc LP |
896 | SD_BUS_PROPERTY("OnFailureJobMode", "s", property_get_job_mode, offsetof(Unit, on_failure_job_mode), SD_BUS_VTABLE_PROPERTY_CONST), |
897 | SD_BUS_PROPERTY("IgnoreOnIsolate", "b", bus_property_get_bool, offsetof(Unit, ignore_on_isolate), SD_BUS_VTABLE_PROPERTY_CONST), | |
e30a3ba1 | 898 | SD_BUS_PROPERTY("NeedDaemonReload", "b", property_get_need_daemon_reload, 0, 0), |
ff68472a | 899 | SD_BUS_PROPERTY("Markers", "as", property_get_markers, offsetof(Unit, markers), 0), |
556089dc | 900 | SD_BUS_PROPERTY("JobTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_timeout), SD_BUS_VTABLE_PROPERTY_CONST), |
a2df3ea4 | 901 | SD_BUS_PROPERTY("JobRunningTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_running_timeout), SD_BUS_VTABLE_PROPERTY_CONST), |
c44a285c | 902 | SD_BUS_PROPERTY("JobTimeoutAction", "s", bus_property_get_emergency_action, offsetof(Unit, job_timeout_action), SD_BUS_VTABLE_PROPERTY_CONST), |
f189ab18 | 903 | SD_BUS_PROPERTY("JobTimeoutRebootArgument", "s", NULL, offsetof(Unit, job_timeout_reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST), |
718db961 | 904 | SD_BUS_PROPERTY("ConditionResult", "b", bus_property_get_bool, offsetof(Unit, condition_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
59fccdc5 | 905 | SD_BUS_PROPERTY("AssertResult", "b", bus_property_get_bool, offsetof(Unit, assert_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
718db961 | 906 | BUS_PROPERTY_DUAL_TIMESTAMP("ConditionTimestamp", offsetof(Unit, condition_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
59fccdc5 | 907 | BUS_PROPERTY_DUAL_TIMESTAMP("AssertTimestamp", offsetof(Unit, assert_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
e18f8852 LP |
908 | SD_BUS_PROPERTY("Conditions", "a(sbbsi)", property_get_conditions, offsetof(Unit, conditions), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION), |
909 | SD_BUS_PROPERTY("Asserts", "a(sbbsi)", property_get_conditions, offsetof(Unit, asserts), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION), | |
fd1e3fd8 | 910 | SD_BUS_PROPERTY("LoadError", "(ss)", property_get_load_error, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
556089dc | 911 | SD_BUS_PROPERTY("Transient", "b", bus_property_get_bool, offsetof(Unit, transient), SD_BUS_VTABLE_PROPERTY_CONST), |
f5869324 | 912 | SD_BUS_PROPERTY("Perpetual", "b", bus_property_get_bool, offsetof(Unit, perpetual), SD_BUS_VTABLE_PROPERTY_CONST), |
7bf081a1 ZJS |
913 | SD_BUS_PROPERTY("StartLimitIntervalUSec", "t", bus_property_get_usec, offsetof(Unit, start_ratelimit.interval), SD_BUS_VTABLE_PROPERTY_CONST), |
914 | SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned, offsetof(Unit, start_ratelimit.burst), SD_BUS_VTABLE_PROPERTY_CONST), | |
c44a285c FL |
915 | SD_BUS_PROPERTY("StartLimitAction", "s", bus_property_get_emergency_action, offsetof(Unit, start_limit_action), SD_BUS_VTABLE_PROPERTY_CONST), |
916 | SD_BUS_PROPERTY("FailureAction", "s", bus_property_get_emergency_action, offsetof(Unit, failure_action), SD_BUS_VTABLE_PROPERTY_CONST), | |
7af67e9a | 917 | SD_BUS_PROPERTY("FailureActionExitStatus", "i", bus_property_get_int, offsetof(Unit, failure_action_exit_status), SD_BUS_VTABLE_PROPERTY_CONST), |
c44a285c | 918 | SD_BUS_PROPERTY("SuccessAction", "s", bus_property_get_emergency_action, offsetof(Unit, success_action), SD_BUS_VTABLE_PROPERTY_CONST), |
7af67e9a | 919 | SD_BUS_PROPERTY("SuccessActionExitStatus", "i", bus_property_get_int, offsetof(Unit, success_action_exit_status), SD_BUS_VTABLE_PROPERTY_CONST), |
6bf0f408 | 920 | SD_BUS_PROPERTY("RebootArgument", "s", NULL, offsetof(Unit, reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST), |
af92c603 | 921 | SD_BUS_PROPERTY("InvocationID", "ay", bus_property_get_id128, offsetof(Unit, invocation_id), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
641e0d7a | 922 | SD_BUS_PROPERTY("CollectMode", "s", property_get_collect_mode, offsetof(Unit, collect_mode), SD_BUS_VTABLE_PROPERTY_CONST), |
bedea99d | 923 | SD_BUS_PROPERTY("Refs", "as", property_get_refs, 0, 0), |
48b92b37 | 924 | SD_BUS_PROPERTY("ActivationDetails", "a(ss)", bus_property_get_activation_details, offsetof(Unit, activation_details), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
718db961 | 925 | |
a008b6d7 | 926 | SD_BUS_METHOD_WITH_ARGS("Start", |
927 | SD_BUS_ARGS("s", mode), | |
928 | SD_BUS_RESULT("o", job), | |
929 | bus_unit_method_start, | |
930 | SD_BUS_VTABLE_UNPRIVILEGED), | |
931 | SD_BUS_METHOD_WITH_ARGS("Stop", | |
932 | SD_BUS_ARGS("s", mode), | |
933 | SD_BUS_RESULT("o", job), | |
934 | bus_unit_method_stop, | |
935 | SD_BUS_VTABLE_UNPRIVILEGED), | |
936 | SD_BUS_METHOD_WITH_ARGS("Reload", | |
937 | SD_BUS_ARGS("s", mode), | |
938 | SD_BUS_RESULT("o", job), | |
939 | bus_unit_method_reload, | |
940 | SD_BUS_VTABLE_UNPRIVILEGED), | |
941 | SD_BUS_METHOD_WITH_ARGS("Restart", | |
942 | SD_BUS_ARGS("s", mode), | |
943 | SD_BUS_RESULT("o", job), | |
944 | bus_unit_method_restart, | |
945 | SD_BUS_VTABLE_UNPRIVILEGED), | |
946 | SD_BUS_METHOD_WITH_ARGS("TryRestart", | |
947 | SD_BUS_ARGS("s", mode), | |
948 | SD_BUS_RESULT("o", job), | |
949 | bus_unit_method_try_restart, | |
950 | SD_BUS_VTABLE_UNPRIVILEGED), | |
951 | SD_BUS_METHOD_WITH_ARGS("ReloadOrRestart", | |
952 | SD_BUS_ARGS("s", mode), | |
953 | SD_BUS_RESULT("o", job), | |
954 | bus_unit_method_reload_or_restart, | |
955 | SD_BUS_VTABLE_UNPRIVILEGED), | |
956 | SD_BUS_METHOD_WITH_ARGS("ReloadOrTryRestart", | |
957 | SD_BUS_ARGS("s", mode), | |
958 | SD_BUS_RESULT("o", job), | |
959 | bus_unit_method_reload_or_try_restart, | |
960 | SD_BUS_VTABLE_UNPRIVILEGED), | |
961 | SD_BUS_METHOD_WITH_ARGS("EnqueueJob", | |
962 | SD_BUS_ARGS("s", job_type, "s", job_mode), | |
963 | SD_BUS_RESULT("u", job_id, "o", job_path, "s", unit_id, "o", unit_path, "s", job_type, "a(uosos)", affected_jobs), | |
964 | bus_unit_method_enqueue_job, | |
965 | SD_BUS_VTABLE_UNPRIVILEGED), | |
966 | SD_BUS_METHOD_WITH_ARGS("Kill", | |
967 | SD_BUS_ARGS("s", whom, "i", signal), | |
968 | SD_BUS_NO_RESULT, | |
969 | bus_unit_method_kill, | |
970 | SD_BUS_VTABLE_UNPRIVILEGED), | |
a721cd00 LP |
971 | SD_BUS_METHOD_WITH_ARGS("QueueSignal", |
972 | SD_BUS_ARGS("s", whom, "i", signal, "i", value), | |
973 | SD_BUS_NO_RESULT, | |
974 | bus_unit_method_kill, | |
975 | SD_BUS_VTABLE_UNPRIVILEGED), | |
dad97f04 ZJS |
976 | SD_BUS_METHOD("ResetFailed", |
977 | NULL, | |
978 | NULL, | |
979 | bus_unit_method_reset_failed, | |
980 | SD_BUS_VTABLE_UNPRIVILEGED), | |
a008b6d7 | 981 | SD_BUS_METHOD_WITH_ARGS("SetProperties", |
982 | SD_BUS_ARGS("b", runtime, "a(sv)", properties), | |
983 | SD_BUS_NO_RESULT, | |
984 | bus_unit_method_set_properties, | |
985 | SD_BUS_VTABLE_UNPRIVILEGED), | |
dad97f04 ZJS |
986 | SD_BUS_METHOD("Ref", |
987 | NULL, | |
988 | NULL, | |
989 | bus_unit_method_ref, | |
990 | SD_BUS_VTABLE_UNPRIVILEGED), | |
991 | SD_BUS_METHOD("Unref", | |
992 | NULL, | |
993 | NULL, | |
994 | bus_unit_method_unref, | |
995 | SD_BUS_VTABLE_UNPRIVILEGED), | |
a008b6d7 | 996 | SD_BUS_METHOD_WITH_ARGS("Clean", |
997 | SD_BUS_ARGS("as", mask), | |
998 | SD_BUS_NO_RESULT, | |
999 | bus_unit_method_clean, | |
1000 | SD_BUS_VTABLE_UNPRIVILEGED), | |
d9e45bc3 MS |
1001 | SD_BUS_METHOD("Freeze", |
1002 | NULL, | |
1003 | NULL, | |
1004 | bus_unit_method_freeze, | |
1005 | SD_BUS_VTABLE_UNPRIVILEGED), | |
1006 | SD_BUS_METHOD("Thaw", | |
1007 | NULL, | |
1008 | NULL, | |
1009 | bus_unit_method_thaw, | |
1010 | SD_BUS_VTABLE_UNPRIVILEGED), | |
718db961 | 1011 | |
92c23c5a YW |
1012 | /* For dependency types we don't support anymore always return an empty array */ |
1013 | SD_BUS_PROPERTY("RequiresOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN), | |
1014 | SD_BUS_PROPERTY("RequisiteOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN), | |
1015 | SD_BUS_PROPERTY("RequiredByOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN), | |
1016 | SD_BUS_PROPERTY("RequisiteOfOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN), | |
1017 | /* Obsolete alias names */ | |
7bf081a1 ZJS |
1018 | SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec, offsetof(Unit, start_ratelimit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), |
1019 | SD_BUS_PROPERTY("StartLimitIntervalSec", "t", bus_property_get_usec, offsetof(Unit, start_ratelimit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), | |
dad97f04 | 1020 | |
718db961 LP |
1021 | SD_BUS_VTABLE_END |
1022 | }; | |
2cccbca4 | 1023 | |
718db961 LP |
1024 | static int property_get_slice( |
1025 | sd_bus *bus, | |
1026 | const char *path, | |
1027 | const char *interface, | |
1028 | const char *property, | |
1029 | sd_bus_message *reply, | |
ebcf1f97 LP |
1030 | void *userdata, |
1031 | sd_bus_error *error) { | |
2cccbca4 | 1032 | |
99534007 | 1033 | Unit *u = ASSERT_PTR(userdata); |
2cccbca4 | 1034 | |
718db961 LP |
1035 | assert(bus); |
1036 | assert(reply); | |
2cccbca4 | 1037 | |
718db961 LP |
1038 | return sd_bus_message_append(reply, "s", unit_slice_name(u)); |
1039 | } | |
2cccbca4 | 1040 | |
934277fe LP |
1041 | static int property_get_current_memory( |
1042 | sd_bus *bus, | |
1043 | const char *path, | |
1044 | const char *interface, | |
1045 | const char *property, | |
1046 | sd_bus_message *reply, | |
1047 | void *userdata, | |
1048 | sd_bus_error *error) { | |
1049 | ||
f5fbe71d | 1050 | uint64_t sz = UINT64_MAX; |
99534007 | 1051 | Unit *u = ASSERT_PTR(userdata); |
934277fe LP |
1052 | int r; |
1053 | ||
1054 | assert(bus); | |
1055 | assert(reply); | |
934277fe | 1056 | |
5ad096b3 LP |
1057 | r = unit_get_memory_current(u, &sz); |
1058 | if (r < 0 && r != -ENODATA) | |
35c08a56 | 1059 | log_unit_warning_errno(u, r, "Failed to get current memory usage from cgroup: %m"); |
934277fe | 1060 | |
5ad096b3 LP |
1061 | return sd_bus_message_append(reply, "t", sz); |
1062 | } | |
934277fe | 1063 | |
9824ab1f | 1064 | static int property_get_available_memory( |
aac3384e FS |
1065 | sd_bus *bus, |
1066 | const char *path, | |
1067 | const char *interface, | |
1068 | const char *property, | |
1069 | sd_bus_message *reply, | |
1070 | void *userdata, | |
1071 | sd_bus_error *error) { | |
1072 | ||
1073 | uint64_t sz = UINT64_MAX; | |
1074 | Unit *u = ASSERT_PTR(userdata); | |
1075 | int r; | |
1076 | ||
1077 | assert(bus); | |
1078 | assert(reply); | |
1079 | ||
9824ab1f | 1080 | r = unit_get_memory_available(u, &sz); |
aac3384e | 1081 | if (r < 0 && r != -ENODATA) |
9824ab1f | 1082 | log_unit_warning_errno(u, r, "Failed to get total available memory from cgroup: %m"); |
aac3384e FS |
1083 | |
1084 | return sd_bus_message_append(reply, "t", sz); | |
1085 | } | |
1086 | ||
9824ab1f | 1087 | static int property_get_memory_accounting( |
26caa668 FS |
1088 | sd_bus *bus, |
1089 | const char *path, | |
1090 | const char *interface, | |
1091 | const char *property, | |
1092 | sd_bus_message *reply, | |
1093 | void *userdata, | |
1094 | sd_bus_error *error) { | |
1095 | ||
26caa668 | 1096 | Unit *u = ASSERT_PTR(userdata); |
9824ab1f | 1097 | CGroupMemoryAccountingMetric metric; |
93ff34e4 | 1098 | uint64_t sz = UINT64_MAX; |
93ff34e4 LB |
1099 | |
1100 | assert(bus); | |
1101 | assert(reply); | |
93ff34e4 | 1102 | |
9824ab1f MY |
1103 | assert_se((metric = cgroup_memory_accounting_metric_from_string(property)) >= 0); |
1104 | (void) unit_get_memory_accounting(u, metric, &sz); | |
93ff34e4 LB |
1105 | return sd_bus_message_append(reply, "t", sz); |
1106 | } | |
1107 | ||
03a7b521 LP |
1108 | static int property_get_current_tasks( |
1109 | sd_bus *bus, | |
1110 | const char *path, | |
1111 | const char *interface, | |
1112 | const char *property, | |
1113 | sd_bus_message *reply, | |
1114 | void *userdata, | |
1115 | sd_bus_error *error) { | |
1116 | ||
f5fbe71d | 1117 | uint64_t cn = UINT64_MAX; |
99534007 | 1118 | Unit *u = ASSERT_PTR(userdata); |
03a7b521 LP |
1119 | int r; |
1120 | ||
1121 | assert(bus); | |
1122 | assert(reply); | |
03a7b521 LP |
1123 | |
1124 | r = unit_get_tasks_current(u, &cn); | |
1125 | if (r < 0 && r != -ENODATA) | |
1126 | log_unit_warning_errno(u, r, "Failed to get pids.current attribute: %m"); | |
1127 | ||
1128 | return sd_bus_message_append(reply, "t", cn); | |
1129 | } | |
1130 | ||
5ad096b3 LP |
1131 | static int property_get_cpu_usage( |
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) { | |
934277fe | 1139 | |
f5fbe71d | 1140 | nsec_t ns = NSEC_INFINITY; |
99534007 | 1141 | Unit *u = ASSERT_PTR(userdata); |
5ad096b3 LP |
1142 | int r; |
1143 | ||
1144 | assert(bus); | |
1145 | assert(reply); | |
5ad096b3 LP |
1146 | |
1147 | r = unit_get_cpu_usage(u, &ns); | |
1148 | if (r < 0 && r != -ENODATA) | |
f2341e0a | 1149 | log_unit_warning_errno(u, r, "Failed to get cpuacct.usage attribute: %m"); |
5ad096b3 LP |
1150 | |
1151 | return sd_bus_message_append(reply, "t", ns); | |
934277fe LP |
1152 | } |
1153 | ||
047f5d63 PH |
1154 | static int property_get_cpuset_cpus( |
1155 | sd_bus *bus, | |
1156 | const char *path, | |
1157 | const char *interface, | |
1158 | const char *property, | |
1159 | sd_bus_message *reply, | |
1160 | void *userdata, | |
1161 | sd_bus_error *error) { | |
1162 | ||
99534007 | 1163 | Unit *u = ASSERT_PTR(userdata); |
047f5d63 PH |
1164 | _cleanup_(cpu_set_reset) CPUSet cpus = {}; |
1165 | _cleanup_free_ uint8_t *array = NULL; | |
1166 | size_t allocated; | |
1167 | ||
1168 | assert(bus); | |
1169 | assert(reply); | |
047f5d63 PH |
1170 | |
1171 | (void) unit_get_cpuset(u, &cpus, "cpuset.cpus.effective"); | |
1172 | (void) cpu_set_to_dbus(&cpus, &array, &allocated); | |
1173 | return sd_bus_message_append_array(reply, 'y', array, allocated); | |
1174 | } | |
1175 | ||
1176 | static int property_get_cpuset_mems( | |
1177 | sd_bus *bus, | |
1178 | const char *path, | |
1179 | const char *interface, | |
1180 | const char *property, | |
1181 | sd_bus_message *reply, | |
1182 | void *userdata, | |
1183 | sd_bus_error *error) { | |
1184 | ||
99534007 | 1185 | Unit *u = ASSERT_PTR(userdata); |
047f5d63 PH |
1186 | _cleanup_(cpu_set_reset) CPUSet mems = {}; |
1187 | _cleanup_free_ uint8_t *array = NULL; | |
1188 | size_t allocated; | |
1189 | ||
1190 | assert(bus); | |
1191 | assert(reply); | |
047f5d63 PH |
1192 | |
1193 | (void) unit_get_cpuset(u, &mems, "cpuset.mems.effective"); | |
1194 | (void) cpu_set_to_dbus(&mems, &array, &allocated); | |
1195 | return sd_bus_message_append_array(reply, 'y', array, allocated); | |
1196 | } | |
1197 | ||
98bac605 LP |
1198 | static int property_get_cgroup( |
1199 | sd_bus *bus, | |
1200 | const char *path, | |
1201 | const char *interface, | |
1202 | const char *property, | |
1203 | sd_bus_message *reply, | |
1204 | void *userdata, | |
1205 | sd_bus_error *error) { | |
1206 | ||
99534007 | 1207 | Unit *u = ASSERT_PTR(userdata); |
79a60375 | 1208 | const char *t = NULL; |
98bac605 LP |
1209 | |
1210 | assert(bus); | |
1211 | assert(reply); | |
98bac605 LP |
1212 | |
1213 | /* Three cases: a) u->cgroup_path is NULL, in which case the | |
1214 | * unit has no control group, which we report as the empty | |
1215 | * string. b) u->cgroup_path is the empty string, which | |
1216 | * indicates the root cgroup, which we report as "/". c) all | |
1217 | * other cases we report as-is. */ | |
1218 | ||
9cc54544 LP |
1219 | CGroupRuntime *crt = unit_get_cgroup_runtime(u); |
1220 | ||
1221 | if (crt && crt->cgroup_path) | |
1222 | t = empty_to_root(crt->cgroup_path); | |
98bac605 LP |
1223 | |
1224 | return sd_bus_message_append(reply, "s", t); | |
1225 | } | |
1226 | ||
9cc54544 LP |
1227 | static int property_get_cgroup_id( |
1228 | sd_bus *bus, | |
1229 | const char *path, | |
1230 | const char *interface, | |
1231 | const char *property, | |
1232 | sd_bus_message *reply, | |
1233 | void *userdata, | |
1234 | sd_bus_error *error) { | |
1235 | ||
1236 | Unit *u = ASSERT_PTR(userdata); | |
1237 | ||
1238 | assert(bus); | |
1239 | assert(reply); | |
1240 | ||
1241 | CGroupRuntime *crt = unit_get_cgroup_runtime(u); | |
04a3af3c | 1242 | return sd_bus_message_append(reply, "t", crt ? crt->cgroup_id : UINT64_C(0)); |
9cc54544 LP |
1243 | } |
1244 | ||
d57d521c | 1245 | static int append_process(sd_bus_message *reply, const char *p, PidRef *pid, Set *pids) { |
291d565a LP |
1246 | _cleanup_free_ char *buf = NULL, *cmdline = NULL; |
1247 | int r; | |
1248 | ||
1249 | assert(reply); | |
d57d521c | 1250 | assert(pidref_is_set(pid)); |
291d565a | 1251 | |
d57d521c | 1252 | r = set_put(pids, PID_TO_PTR(pid->pid)); |
4c701096 | 1253 | if (IN_SET(r, 0, -EEXIST)) |
291d565a LP |
1254 | return 0; |
1255 | if (r < 0) | |
1256 | return r; | |
1257 | ||
1258 | if (!p) { | |
d57d521c | 1259 | r = cg_pidref_get_path(SYSTEMD_CGROUP_CONTROLLER, pid, &buf); |
291d565a LP |
1260 | if (r == -ESRCH) |
1261 | return 0; | |
1262 | if (r < 0) | |
1263 | return r; | |
1264 | ||
1265 | p = buf; | |
1266 | } | |
1267 | ||
d57d521c | 1268 | (void) pidref_get_cmdline( |
a034620f LP |
1269 | pid, |
1270 | SIZE_MAX, | |
1271 | PROCESS_CMDLINE_COMM_FALLBACK | PROCESS_CMDLINE_QUOTE, | |
1272 | &cmdline); | |
291d565a LP |
1273 | |
1274 | return sd_bus_message_append(reply, | |
1275 | "(sus)", | |
1276 | p, | |
d57d521c | 1277 | (uint32_t) pid->pid, |
291d565a LP |
1278 | cmdline); |
1279 | } | |
1280 | ||
1281 | static int append_cgroup(sd_bus_message *reply, const char *p, Set *pids) { | |
1282 | _cleanup_closedir_ DIR *d = NULL; | |
1283 | _cleanup_fclose_ FILE *f = NULL; | |
1284 | int r; | |
1285 | ||
1286 | assert(reply); | |
1287 | assert(p); | |
1288 | ||
1289 | r = cg_enumerate_processes(SYSTEMD_CGROUP_CONTROLLER, p, &f); | |
24715314 | 1290 | if (r == -ENOENT) |
291d565a LP |
1291 | return 0; |
1292 | if (r < 0) | |
1293 | return r; | |
1294 | ||
1295 | for (;;) { | |
d57d521c | 1296 | _cleanup_(pidref_done) PidRef pidref = PIDREF_NULL; |
291d565a | 1297 | |
1fb50408 | 1298 | /* libvirt / qemu uses threaded mode and cgroup.procs cannot be read at the lower levels. |
d57d521c LP |
1299 | * From https://docs.kernel.org/admin-guide/cgroup-v2.html#threads, “cgroup.procs” in a |
1300 | * threaded domain cgroup contains the PIDs of all processes in the subtree and is not | |
1301 | * readable in the subtree proper. */ | |
1302 | ||
00f17143 | 1303 | r = cg_read_pidref(f, &pidref, /* flags = */ 0); |
1fb50408 YW |
1304 | if (IN_SET(r, 0, -EOPNOTSUPP)) |
1305 | break; | |
291d565a LP |
1306 | if (r < 0) |
1307 | return r; | |
291d565a | 1308 | |
d57d521c LP |
1309 | r = pidref_is_kernel_thread(&pidref); |
1310 | if (r == -ESRCH) /* gone by now */ | |
1311 | continue; | |
1312 | if (r < 0) | |
1313 | log_debug_errno(r, "Failed to determine if " PID_FMT " is a kernel thread, assuming not: %m", pidref.pid); | |
1314 | if (r > 0) | |
291d565a LP |
1315 | continue; |
1316 | ||
d57d521c | 1317 | r = append_process(reply, p, &pidref, pids); |
291d565a LP |
1318 | if (r < 0) |
1319 | return r; | |
1320 | } | |
1321 | ||
1322 | r = cg_enumerate_subgroups(SYSTEMD_CGROUP_CONTROLLER, p, &d); | |
1323 | if (r == -ENOENT) | |
1324 | return 0; | |
1325 | if (r < 0) | |
1326 | return r; | |
1327 | ||
1328 | for (;;) { | |
1329 | _cleanup_free_ char *g = NULL, *j = NULL; | |
1330 | ||
1331 | r = cg_read_subgroup(d, &g); | |
1332 | if (r < 0) | |
1333 | return r; | |
1334 | if (r == 0) | |
1335 | break; | |
1336 | ||
624e4fcf | 1337 | j = path_join(empty_to_root(p), g); |
291d565a LP |
1338 | if (!j) |
1339 | return -ENOMEM; | |
1340 | ||
1341 | r = append_cgroup(reply, j, pids); | |
1342 | if (r < 0) | |
1343 | return r; | |
1344 | } | |
1345 | ||
1346 | return 0; | |
1347 | } | |
1348 | ||
1349 | int bus_unit_method_get_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
1350 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
af4fa99d | 1351 | _cleanup_set_free_ Set *pids = NULL; |
291d565a | 1352 | Unit *u = userdata; |
291d565a LP |
1353 | int r; |
1354 | ||
1355 | assert(message); | |
1356 | ||
807fa5d9 LP |
1357 | r = mac_selinux_unit_access_check(u, message, "status", error); |
1358 | if (r < 0) | |
1359 | return r; | |
1360 | ||
291d565a LP |
1361 | pids = set_new(NULL); |
1362 | if (!pids) | |
1363 | return -ENOMEM; | |
1364 | ||
1365 | r = sd_bus_message_new_method_return(message, &reply); | |
1366 | if (r < 0) | |
1367 | return r; | |
1368 | ||
1369 | r = sd_bus_message_open_container(reply, 'a', "(sus)"); | |
1370 | if (r < 0) | |
1371 | return r; | |
1372 | ||
9cc54544 LP |
1373 | CGroupRuntime *crt; |
1374 | crt = unit_get_cgroup_runtime(u); | |
1375 | if (crt && crt->cgroup_path) { | |
1376 | r = append_cgroup(reply, crt->cgroup_path, pids); | |
291d565a LP |
1377 | if (r < 0) |
1378 | return r; | |
1379 | } | |
1380 | ||
1381 | /* The main and control pids might live outside of the cgroup, hence fetch them separately */ | |
37eb258e LP |
1382 | PidRef *pid = unit_main_pid(u); |
1383 | if (pidref_is_set(pid)) { | |
d57d521c | 1384 | r = append_process(reply, NULL, pid, pids); |
291d565a LP |
1385 | if (r < 0) |
1386 | return r; | |
1387 | } | |
1388 | ||
1389 | pid = unit_control_pid(u); | |
37eb258e | 1390 | if (pidref_is_set(pid)) { |
d57d521c | 1391 | r = append_process(reply, NULL, pid, pids); |
291d565a LP |
1392 | if (r < 0) |
1393 | return r; | |
1394 | } | |
1395 | ||
1396 | r = sd_bus_message_close_container(reply); | |
1397 | if (r < 0) | |
1398 | return r; | |
1399 | ||
1400 | return sd_bus_send(NULL, reply, NULL); | |
1401 | } | |
1402 | ||
906c06f6 DM |
1403 | static int property_get_ip_counter( |
1404 | sd_bus *bus, | |
1405 | const char *path, | |
1406 | const char *interface, | |
1407 | const char *property, | |
1408 | sd_bus_message *reply, | |
1409 | void *userdata, | |
1410 | sd_bus_error *error) { | |
1411 | ||
83f18c91 | 1412 | uint64_t value = UINT64_MAX; |
99534007 | 1413 | Unit *u = ASSERT_PTR(userdata); |
435996e6 | 1414 | CGroupIPAccountingMetric metric; |
906c06f6 DM |
1415 | |
1416 | assert(bus); | |
1417 | assert(reply); | |
1418 | assert(property); | |
906c06f6 | 1419 | |
435996e6 | 1420 | assert_se((metric = cgroup_ip_accounting_metric_from_string(property)) >= 0); |
906c06f6 DM |
1421 | (void) unit_get_ip_accounting(u, metric, &value); |
1422 | return sd_bus_message_append(reply, "t", value); | |
1423 | } | |
1424 | ||
fbe14fc9 LP |
1425 | static int property_get_io_counter( |
1426 | sd_bus *bus, | |
1427 | const char *path, | |
1428 | const char *interface, | |
1429 | const char *property, | |
1430 | sd_bus_message *reply, | |
1431 | void *userdata, | |
1432 | sd_bus_error *error) { | |
1433 | ||
fbe14fc9 | 1434 | uint64_t value = UINT64_MAX; |
99534007 | 1435 | Unit *u = ASSERT_PTR(userdata); |
fbe14fc9 LP |
1436 | ssize_t metric; |
1437 | ||
1438 | assert(bus); | |
1439 | assert(reply); | |
1440 | assert(property); | |
fbe14fc9 | 1441 | |
435996e6 DDM |
1442 | assert_se((metric = cgroup_io_accounting_metric_from_string(property)) >= 0); |
1443 | (void) unit_get_io_accounting(u, metric, /* allow_cache= */ false, &value); | |
fbe14fc9 LP |
1444 | return sd_bus_message_append(reply, "t", value); |
1445 | } | |
1446 | ||
4fb0d2dc MK |
1447 | static int property_get_effective_limit( |
1448 | sd_bus *bus, | |
1449 | const char *path, | |
1450 | const char *interface, | |
1451 | const char *property, | |
1452 | sd_bus_message *reply, | |
1453 | void *userdata, | |
1454 | sd_bus_error *error) { | |
1455 | ||
1456 | uint64_t value = CGROUP_LIMIT_MAX; | |
1457 | Unit *u = ASSERT_PTR(userdata); | |
1458 | ssize_t type; | |
1459 | ||
1460 | assert(bus); | |
1461 | assert(reply); | |
1462 | assert(property); | |
1463 | ||
8ad61489 | 1464 | assert_se((type = cgroup_effective_limit_type_from_string(property)) >= 0); |
4fb0d2dc MK |
1465 | (void) unit_get_effective_limit(u, type, &value); |
1466 | return sd_bus_message_append(reply, "t", value); | |
1467 | } | |
1468 | ||
6592b975 | 1469 | int bus_unit_method_attach_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
6592b975 | 1470 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
af4fa99d | 1471 | _cleanup_set_free_ Set *pids = NULL; |
6592b975 LP |
1472 | Unit *u = userdata; |
1473 | const char *path; | |
1474 | int r; | |
1475 | ||
1476 | assert(message); | |
1477 | ||
1478 | /* This migrates the processes with the specified PIDs into the cgroup of this unit, optionally below a | |
1479 | * specified cgroup path. Obviously this only works for units that actually maintain a cgroup | |
1480 | * representation. If a process is already in the cgroup no operation is executed – in this case the specified | |
1481 | * subcgroup path has no effect! */ | |
1482 | ||
1483 | r = mac_selinux_unit_access_check(u, message, "start", error); | |
1484 | if (r < 0) | |
1485 | return r; | |
1486 | ||
1487 | r = sd_bus_message_read(message, "s", &path); | |
1488 | if (r < 0) | |
1489 | return r; | |
1490 | ||
1491 | path = empty_to_null(path); | |
1492 | if (path) { | |
1493 | if (!path_is_absolute(path)) | |
1494 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Control group path is not absolute: %s", path); | |
1495 | ||
1496 | if (!path_is_normalized(path)) | |
1497 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Control group path is not normalized: %s", path); | |
1498 | } | |
1499 | ||
1500 | if (!unit_cgroup_delegate(u)) | |
1b09b81c | 1501 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Process migration not available on non-delegated units."); |
6592b975 LP |
1502 | |
1503 | if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u))) | |
1b09b81c | 1504 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Unit is not active, refusing."); |
6592b975 | 1505 | |
4ac08d8a | 1506 | r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID|SD_BUS_CREDS_PIDFD, &creds); |
6592b975 LP |
1507 | if (r < 0) |
1508 | return r; | |
1509 | ||
1510 | r = sd_bus_message_enter_container(message, 'a', "u"); | |
1511 | if (r < 0) | |
1512 | return r; | |
1513 | for (;;) { | |
495e75ed | 1514 | _cleanup_(pidref_freep) PidRef *pidref = NULL; |
6592b975 LP |
1515 | uid_t process_uid, sender_uid; |
1516 | uint32_t upid; | |
6592b975 LP |
1517 | |
1518 | r = sd_bus_message_read(message, "u", &upid); | |
1519 | if (r < 0) | |
1520 | return r; | |
1521 | if (r == 0) | |
1522 | break; | |
1523 | ||
1524 | if (upid == 0) { | |
4ac08d8a LP |
1525 | _cleanup_(pidref_done) PidRef p = PIDREF_NULL; |
1526 | r = bus_creds_get_pidref(creds, &p); | |
6592b975 LP |
1527 | if (r < 0) |
1528 | return r; | |
6592b975 | 1529 | |
4ac08d8a LP |
1530 | r = pidref_dup(&p, &pidref); |
1531 | } else | |
1532 | r = pidref_new_from_pid(upid, &pidref); | |
495e75ed LP |
1533 | if (r < 0) |
1534 | return r; | |
1535 | ||
6592b975 | 1536 | /* Filter out duplicates */ |
495e75ed | 1537 | if (set_contains(pids, pidref)) |
6592b975 LP |
1538 | continue; |
1539 | ||
1540 | /* Check if this process is suitable for attaching to this unit */ | |
495e75ed | 1541 | r = unit_pid_attachable(u, pidref, error); |
6592b975 LP |
1542 | if (r < 0) |
1543 | return r; | |
1544 | ||
1545 | /* Let's query the sender's UID, so that we can make our security decisions */ | |
1546 | r = sd_bus_creds_get_euid(creds, &sender_uid); | |
1547 | if (r < 0) | |
1548 | return r; | |
1549 | ||
874b5ad2 | 1550 | /* Let's validate security: if the sender is root, then all is OK. If the sender is any other unit, |
6592b975 LP |
1551 | * then the process' UID and the target unit's UID have to match the sender's UID */ |
1552 | if (sender_uid != 0 && sender_uid != getuid()) { | |
8b513415 | 1553 | r = pidref_get_uid(pidref, &process_uid); |
6592b975 LP |
1554 | if (r < 0) |
1555 | return sd_bus_error_set_errnof(error, r, "Failed to retrieve process UID: %m"); | |
1556 | ||
1557 | if (process_uid != sender_uid) | |
4ac08d8a | 1558 | return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Process " PID_FMT " not owned by client's UID. Refusing.", pidref->pid); |
6592b975 | 1559 | if (process_uid != u->ref_uid) |
4ac08d8a | 1560 | return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Process " PID_FMT " not owned by target unit's UID. Refusing.", pidref->pid); |
6592b975 LP |
1561 | } |
1562 | ||
4c8d5f02 | 1563 | r = set_ensure_consume(&pids, &pidref_hash_ops_free, TAKE_PTR(pidref)); |
6592b975 LP |
1564 | if (r < 0) |
1565 | return r; | |
1566 | } | |
1567 | ||
1568 | r = sd_bus_message_exit_container(message); | |
1569 | if (r < 0) | |
1570 | return r; | |
1571 | ||
1572 | r = unit_attach_pids_to_cgroup(u, pids, path); | |
1573 | if (r < 0) | |
1574 | return sd_bus_error_set_errnof(error, r, "Failed to attach processes to control group: %m"); | |
1575 | ||
1576 | return sd_bus_reply_method_return(message, NULL); | |
1577 | } | |
1578 | ||
718db961 LP |
1579 | const sd_bus_vtable bus_unit_cgroup_vtable[] = { |
1580 | SD_BUS_VTABLE_START(0), | |
1581 | SD_BUS_PROPERTY("Slice", "s", property_get_slice, 0, 0), | |
98bac605 | 1582 | SD_BUS_PROPERTY("ControlGroup", "s", property_get_cgroup, 0, 0), |
9cc54544 | 1583 | SD_BUS_PROPERTY("ControlGroupId", "t", property_get_cgroup_id, 0, 0), |
934277fe | 1584 | SD_BUS_PROPERTY("MemoryCurrent", "t", property_get_current_memory, 0, 0), |
9824ab1f MY |
1585 | SD_BUS_PROPERTY("MemoryPeak", "t", property_get_memory_accounting, 0, 0), |
1586 | SD_BUS_PROPERTY("MemorySwapCurrent", "t", property_get_memory_accounting, 0, 0), | |
1587 | SD_BUS_PROPERTY("MemorySwapPeak", "t", property_get_memory_accounting, 0, 0), | |
1588 | SD_BUS_PROPERTY("MemoryZSwapCurrent", "t", property_get_memory_accounting, 0, 0), | |
93ff34e4 | 1589 | SD_BUS_PROPERTY("MemoryAvailable", "t", property_get_available_memory, 0, 0), |
4fb0d2dc MK |
1590 | SD_BUS_PROPERTY("EffectiveMemoryMax", "t", property_get_effective_limit, 0, 0), |
1591 | SD_BUS_PROPERTY("EffectiveMemoryHigh", "t", property_get_effective_limit, 0, 0), | |
5ad096b3 | 1592 | SD_BUS_PROPERTY("CPUUsageNSec", "t", property_get_cpu_usage, 0, 0), |
047f5d63 PH |
1593 | SD_BUS_PROPERTY("EffectiveCPUs", "ay", property_get_cpuset_cpus, 0, 0), |
1594 | SD_BUS_PROPERTY("EffectiveMemoryNodes", "ay", property_get_cpuset_mems, 0, 0), | |
03a7b521 | 1595 | SD_BUS_PROPERTY("TasksCurrent", "t", property_get_current_tasks, 0, 0), |
4fb0d2dc | 1596 | SD_BUS_PROPERTY("EffectiveTasksMax", "t", property_get_effective_limit, 0, 0), |
906c06f6 DM |
1597 | SD_BUS_PROPERTY("IPIngressBytes", "t", property_get_ip_counter, 0, 0), |
1598 | SD_BUS_PROPERTY("IPIngressPackets", "t", property_get_ip_counter, 0, 0), | |
1599 | SD_BUS_PROPERTY("IPEgressBytes", "t", property_get_ip_counter, 0, 0), | |
1600 | SD_BUS_PROPERTY("IPEgressPackets", "t", property_get_ip_counter, 0, 0), | |
fbe14fc9 LP |
1601 | SD_BUS_PROPERTY("IOReadBytes", "t", property_get_io_counter, 0, 0), |
1602 | SD_BUS_PROPERTY("IOReadOperations", "t", property_get_io_counter, 0, 0), | |
1603 | SD_BUS_PROPERTY("IOWriteBytes", "t", property_get_io_counter, 0, 0), | |
1604 | SD_BUS_PROPERTY("IOWriteOperations", "t", property_get_io_counter, 0, 0), | |
dad97f04 | 1605 | |
a008b6d7 | 1606 | SD_BUS_METHOD_WITH_ARGS("GetProcesses", |
696a8ec0 MY |
1607 | SD_BUS_NO_ARGS, |
1608 | SD_BUS_ARGS("a(sus)", processes), | |
1609 | bus_unit_method_get_processes, | |
1610 | SD_BUS_VTABLE_UNPRIVILEGED), | |
dad97f04 | 1611 | |
a008b6d7 | 1612 | SD_BUS_METHOD_WITH_ARGS("AttachProcesses", |
696a8ec0 MY |
1613 | SD_BUS_ARGS("s", subcgroup, "au", pids), |
1614 | SD_BUS_NO_RESULT, | |
1615 | bus_unit_method_attach_processes, | |
1616 | SD_BUS_VTABLE_UNPRIVILEGED), | |
dad97f04 | 1617 | |
718db961 LP |
1618 | SD_BUS_VTABLE_END |
1619 | }; | |
2cccbca4 | 1620 | |
8f8f05a9 | 1621 | static int send_new_signal(sd_bus *bus, void *userdata) { |
4afd3348 | 1622 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
718db961 | 1623 | _cleanup_free_ char *p = NULL; |
99534007 | 1624 | Unit *u = ASSERT_PTR(userdata); |
718db961 | 1625 | int r; |
2cccbca4 | 1626 | |
718db961 | 1627 | assert(bus); |
2cccbca4 | 1628 | |
718db961 | 1629 | p = unit_dbus_path(u); |
e861098b | 1630 | if (!p) |
718db961 | 1631 | return -ENOMEM; |
2cccbca4 | 1632 | |
718db961 LP |
1633 | r = sd_bus_message_new_signal( |
1634 | bus, | |
151b9b96 | 1635 | &m, |
718db961 LP |
1636 | "/org/freedesktop/systemd1", |
1637 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 1638 | "UnitNew"); |
718db961 LP |
1639 | if (r < 0) |
1640 | return r; | |
2cccbca4 | 1641 | |
718db961 LP |
1642 | r = sd_bus_message_append(m, "so", u->id, p); |
1643 | if (r < 0) | |
1644 | return r; | |
2cccbca4 | 1645 | |
8f8f05a9 | 1646 | return sd_bus_send(bus, m, NULL); |
718db961 | 1647 | } |
2cccbca4 | 1648 | |
8f8f05a9 | 1649 | static int send_changed_signal(sd_bus *bus, void *userdata) { |
718db961 | 1650 | _cleanup_free_ char *p = NULL; |
99534007 | 1651 | Unit *u = ASSERT_PTR(userdata); |
718db961 | 1652 | int r; |
2cccbca4 | 1653 | |
718db961 | 1654 | assert(bus); |
2cccbca4 | 1655 | |
718db961 | 1656 | p = unit_dbus_path(u); |
9ceefc81 | 1657 | if (!p) |
718db961 | 1658 | return -ENOMEM; |
2cccbca4 | 1659 | |
718db961 LP |
1660 | /* Send a properties changed signal. First for the specific |
1661 | * type, then for the generic unit. The clients may rely on | |
1662 | * this order to get atomic behavior if needed. */ | |
ea430986 | 1663 | |
aec8de63 LP |
1664 | r = sd_bus_emit_properties_changed_strv( |
1665 | bus, p, | |
21b735e7 | 1666 | unit_dbus_interface_from_type(u->type), |
aec8de63 | 1667 | NULL); |
fe7f06f1 | 1668 | if (r < 0) |
aec8de63 | 1669 | return r; |
80fbf05e | 1670 | |
fe7f06f1 | 1671 | return sd_bus_emit_properties_changed_strv( |
718db961 LP |
1672 | bus, p, |
1673 | "org.freedesktop.systemd1.Unit", | |
718db961 | 1674 | NULL); |
ea430986 LP |
1675 | } |
1676 | ||
c1e1601e | 1677 | void bus_unit_send_change_signal(Unit *u) { |
b170dd80 | 1678 | int r; |
c1e1601e | 1679 | assert(u); |
c1e1601e | 1680 | |
ac155bb8 | 1681 | if (u->in_dbus_queue) { |
71fda00f | 1682 | LIST_REMOVE(dbus_queue, u->manager->dbus_unit_queue, u); |
ac155bb8 | 1683 | u->in_dbus_queue = false; |
af05bb97 LP |
1684 | |
1685 | /* The unit might be good to be GC once its pending signals have been sent */ | |
1686 | unit_add_to_gc_queue(u); | |
c0bd0cf7 | 1687 | } |
c1e1601e | 1688 | |
ac155bb8 | 1689 | if (!u->id) |
04ade7d2 LP |
1690 | return; |
1691 | ||
ae572acd | 1692 | r = bus_foreach_bus(u->manager, u->bus_track, u->sent_dbus_new_signal ? send_changed_signal : send_new_signal, u); |
718db961 | 1693 | if (r < 0) |
f2341e0a | 1694 | log_unit_debug_errno(u, r, "Failed to send unit change signal for %s: %m", u->id); |
c1e1601e | 1695 | |
718db961 LP |
1696 | u->sent_dbus_new_signal = true; |
1697 | } | |
c4e2ceae | 1698 | |
6fcbec6f LP |
1699 | void bus_unit_send_pending_change_signal(Unit *u, bool including_new) { |
1700 | ||
1701 | /* Sends out any pending change signals, but only if they really are pending. This call is used when we are | |
1702 | * about to change state in order to force out a PropertiesChanged signal beforehand if there was one pending | |
1703 | * so that clients can follow the full state transition */ | |
1704 | ||
1705 | if (!u->in_dbus_queue) /* If not enqueued, don't bother */ | |
1706 | return; | |
1707 | ||
1708 | if (!u->sent_dbus_new_signal && !including_new) /* If the unit was never announced, don't bother, it's fine if | |
1709 | * the unit appears in the new state right-away (except if the | |
1710 | * caller explicitly asked us to send it anyway) */ | |
1711 | return; | |
1712 | ||
1713 | if (MANAGER_IS_RELOADING(u->manager)) /* Don't generate unnecessary PropertiesChanged signals for the same unit | |
1714 | * when we are reloading. */ | |
1715 | return; | |
1716 | ||
1717 | bus_unit_send_change_signal(u); | |
1718 | } | |
1719 | ||
3d19e122 | 1720 | int bus_unit_send_pending_freezer_message(Unit *u, bool cancelled) { |
1721 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
d9e45bc3 MS |
1722 | int r; |
1723 | ||
1724 | assert(u); | |
1725 | ||
af1e3365 | 1726 | if (!u->pending_freezer_invocation) |
d9e45bc3 MS |
1727 | return 0; |
1728 | ||
3d19e122 | 1729 | if (cancelled) |
1730 | r = sd_bus_message_new_method_error( | |
af1e3365 | 1731 | u->pending_freezer_invocation, |
3d19e122 | 1732 | &reply, |
1733 | &SD_BUS_ERROR_MAKE_CONST( | |
1734 | BUS_ERROR_FREEZE_CANCELLED, "Freeze operation aborted")); | |
1735 | else | |
af1e3365 | 1736 | r = sd_bus_message_new_method_return(u->pending_freezer_invocation, &reply); |
3d19e122 | 1737 | if (r < 0) |
1738 | return r; | |
1739 | ||
1740 | r = sd_bus_send(NULL, reply, NULL); | |
d9e45bc3 MS |
1741 | if (r < 0) |
1742 | log_warning_errno(r, "Failed to send queued message, ignoring: %m"); | |
1743 | ||
af1e3365 | 1744 | u->pending_freezer_invocation = sd_bus_message_unref(u->pending_freezer_invocation); |
d9e45bc3 MS |
1745 | |
1746 | return 0; | |
1747 | } | |
1748 | ||
8f8f05a9 | 1749 | static int send_removed_signal(sd_bus *bus, void *userdata) { |
4afd3348 | 1750 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
718db961 | 1751 | _cleanup_free_ char *p = NULL; |
99534007 | 1752 | Unit *u = ASSERT_PTR(userdata); |
718db961 | 1753 | int r; |
c4e2ceae | 1754 | |
718db961 | 1755 | assert(bus); |
c1e1601e | 1756 | |
718db961 | 1757 | p = unit_dbus_path(u); |
e861098b | 1758 | if (!p) |
718db961 | 1759 | return -ENOMEM; |
c1e1601e | 1760 | |
718db961 LP |
1761 | r = sd_bus_message_new_signal( |
1762 | bus, | |
151b9b96 | 1763 | &m, |
718db961 LP |
1764 | "/org/freedesktop/systemd1", |
1765 | "org.freedesktop.systemd1.Manager", | |
151b9b96 | 1766 | "UnitRemoved"); |
718db961 LP |
1767 | if (r < 0) |
1768 | return r; | |
c1e1601e | 1769 | |
718db961 LP |
1770 | r = sd_bus_message_append(m, "so", u->id, p); |
1771 | if (r < 0) | |
1772 | return r; | |
c1e1601e | 1773 | |
8f8f05a9 | 1774 | return sd_bus_send(bus, m, NULL); |
c1e1601e LP |
1775 | } |
1776 | ||
1777 | void bus_unit_send_removed_signal(Unit *u) { | |
718db961 | 1778 | int r; |
c1e1601e LP |
1779 | assert(u); |
1780 | ||
0dd99f86 | 1781 | if (!u->sent_dbus_new_signal || u->in_dbus_queue) |
7535cc78 LP |
1782 | bus_unit_send_change_signal(u); |
1783 | ||
ac155bb8 | 1784 | if (!u->id) |
04ade7d2 LP |
1785 | return; |
1786 | ||
ae572acd | 1787 | r = bus_foreach_bus(u->manager, u->bus_track, send_removed_signal, u); |
718db961 | 1788 | if (r < 0) |
f2341e0a | 1789 | log_unit_debug_errno(u, r, "Failed to send unit remove signal for %s: %m", u->id); |
c1e1601e | 1790 | } |
e2110e5d | 1791 | |
70666e28 | 1792 | int bus_unit_queue_job_one( |
718db961 | 1793 | sd_bus_message *message, |
cad45ba1 LP |
1794 | Unit *u, |
1795 | JobType type, | |
1796 | JobMode mode, | |
50cbaba4 | 1797 | BusUnitQueueFlags flags, |
70666e28 | 1798 | sd_bus_message *reply, |
ebcf1f97 | 1799 | sd_bus_error *error) { |
cad45ba1 | 1800 | |
e57ac1b0 | 1801 | _cleanup_set_free_ Set *affected = NULL; |
70666e28 | 1802 | _cleanup_free_ char *job_path = NULL, *unit_path = NULL; |
50cbaba4 | 1803 | Job *j, *a; |
cad45ba1 LP |
1804 | int r; |
1805 | ||
8ea8e23f ZJS |
1806 | if (FLAGS_SET(flags, BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE) && unit_can_reload(u)) { |
1807 | if (type == JOB_RESTART) | |
1808 | type = JOB_RELOAD_OR_START; | |
1809 | else if (type == JOB_TRY_RESTART) | |
1810 | type = JOB_TRY_RELOAD; | |
1811 | } | |
1812 | ||
1813 | if (type == JOB_STOP && | |
1814 | IN_SET(u->load_state, UNIT_NOT_FOUND, UNIT_ERROR, UNIT_BAD_SETTING) && | |
1815 | unit_active_state(u) == UNIT_INACTIVE) | |
1816 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id); | |
1817 | ||
1818 | if ((type == JOB_START && u->refuse_manual_start) || | |
1819 | (type == JOB_STOP && u->refuse_manual_stop) || | |
1820 | (IN_SET(type, JOB_RESTART, JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop)) || | |
1821 | (type == JOB_RELOAD_OR_START && job_type_collapse(type, u) == JOB_START && u->refuse_manual_start)) | |
1822 | return sd_bus_error_setf(error, | |
1823 | BUS_ERROR_ONLY_BY_DEPENDENCY, | |
1824 | "Operation refused, unit %s may be requested by dependency only (it is configured to refuse manual start/stop).", | |
1825 | u->id); | |
1826 | ||
1827 | /* dbus-broker issues StartUnit for activation requests, and Type=dbus services automatically | |
1828 | * gain dependency on dbus.socket. Therefore, if dbus has a pending stop job, the new start | |
1829 | * job that pulls in dbus again would cause job type conflict. Let's avoid that by rejecting | |
1830 | * job enqueuing early. | |
1831 | * | |
1832 | * Note that unlike signal_activation_request(), we can't use unit_inactive_or_pending() | |
1833 | * here. StartUnit is a more generic interface, and thus users are allowed to use e.g. systemctl | |
1834 | * to start Type=dbus services even when dbus is inactive. */ | |
1835 | if (type == JOB_START && u->type == UNIT_SERVICE && SERVICE(u)->type == SERVICE_DBUS) | |
1836 | FOREACH_STRING(dbus_unit, SPECIAL_DBUS_SOCKET, SPECIAL_DBUS_SERVICE) { | |
1837 | Unit *dbus; | |
1838 | ||
1839 | dbus = manager_get_unit(u->manager, dbus_unit); | |
1840 | if (dbus && unit_stop_pending(dbus)) | |
1841 | return sd_bus_error_setf(error, | |
1842 | BUS_ERROR_SHUTTING_DOWN, | |
1843 | "Operation for unit %s refused, D-Bus is shutting down.", | |
1844 | u->id); | |
1845 | } | |
1846 | ||
50cbaba4 LP |
1847 | if (FLAGS_SET(flags, BUS_UNIT_QUEUE_VERBOSE_REPLY)) { |
1848 | affected = set_new(NULL); | |
1849 | if (!affected) | |
1850 | return -ENOMEM; | |
1851 | } | |
1852 | ||
1853 | r = manager_add_job(u->manager, type, u, mode, affected, error, &j); | |
cad45ba1 | 1854 | if (r < 0) |
ebcf1f97 | 1855 | return r; |
cad45ba1 | 1856 | |
c5a97ed1 LP |
1857 | r = bus_job_track_sender(j, message); |
1858 | if (r < 0) | |
1859 | return r; | |
cad45ba1 | 1860 | |
13142276 LP |
1861 | /* Before we send the method reply, force out the announcement JobNew for this job */ |
1862 | bus_job_send_pending_change_signal(j, true); | |
1863 | ||
50cbaba4 LP |
1864 | job_path = job_dbus_path(j); |
1865 | if (!job_path) | |
1866 | return -ENOMEM; | |
1867 | ||
1868 | /* The classic response is just a job object path */ | |
1869 | if (!FLAGS_SET(flags, BUS_UNIT_QUEUE_VERBOSE_REPLY)) | |
70666e28 | 1870 | return sd_bus_message_append(reply, "o", job_path); |
50cbaba4 LP |
1871 | |
1872 | /* In verbose mode respond with the anchor job plus everything that has been affected */ | |
50cbaba4 LP |
1873 | |
1874 | unit_path = unit_dbus_path(j->unit); | |
1875 | if (!unit_path) | |
1876 | return -ENOMEM; | |
1877 | ||
1878 | r = sd_bus_message_append(reply, "uosos", | |
1879 | j->id, job_path, | |
1880 | j->unit->id, unit_path, | |
1881 | job_type_to_string(j->type)); | |
1882 | if (r < 0) | |
1883 | return r; | |
1884 | ||
1885 | r = sd_bus_message_open_container(reply, 'a', "(uosos)"); | |
1886 | if (r < 0) | |
1887 | return r; | |
1888 | ||
90e74a66 | 1889 | SET_FOREACH(a, affected) { |
50cbaba4 LP |
1890 | if (a->id == j->id) |
1891 | continue; | |
1892 | ||
1893 | /* Free paths from previous iteration */ | |
1894 | job_path = mfree(job_path); | |
1895 | unit_path = mfree(unit_path); | |
1896 | ||
1897 | job_path = job_dbus_path(a); | |
1898 | if (!job_path) | |
1899 | return -ENOMEM; | |
1900 | ||
1901 | unit_path = unit_dbus_path(a->unit); | |
1902 | if (!unit_path) | |
1903 | return -ENOMEM; | |
1904 | ||
1905 | r = sd_bus_message_append(reply, "(uosos)", | |
1906 | a->id, job_path, | |
1907 | a->unit->id, unit_path, | |
1908 | job_type_to_string(a->type)); | |
1909 | if (r < 0) | |
1910 | return r; | |
1911 | } | |
1912 | ||
70666e28 ZJS |
1913 | return sd_bus_message_close_container(reply); |
1914 | } | |
1915 | ||
1916 | int bus_unit_queue_job( | |
1917 | sd_bus_message *message, | |
1918 | Unit *u, | |
1919 | JobType type, | |
1920 | JobMode mode, | |
1921 | BusUnitQueueFlags flags, | |
1922 | sd_bus_error *error) { | |
1923 | ||
1924 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
1925 | int r; | |
1926 | ||
1927 | assert(message); | |
1928 | assert(u); | |
1929 | assert(type >= 0 && type < _JOB_TYPE_MAX); | |
1930 | assert(mode >= 0 && mode < _JOB_MODE_MAX); | |
1931 | ||
1932 | r = mac_selinux_unit_access_check( | |
1933 | u, message, | |
1934 | job_type_to_access_method(type), | |
1935 | error); | |
1936 | if (r < 0) | |
1937 | return r; | |
1938 | ||
70666e28 ZJS |
1939 | r = sd_bus_message_new_method_return(message, &reply); |
1940 | if (r < 0) | |
1941 | return r; | |
1942 | ||
1943 | r = bus_unit_queue_job_one(message, u, type, mode, flags, reply, error); | |
50cbaba4 LP |
1944 | if (r < 0) |
1945 | return r; | |
1946 | ||
1947 | return sd_bus_send(NULL, reply, NULL); | |
cad45ba1 LP |
1948 | } |
1949 | ||
721060d4 | 1950 | static int bus_unit_set_live_property( |
9f2e86af LP |
1951 | Unit *u, |
1952 | const char *name, | |
718db961 | 1953 | sd_bus_message *message, |
2e59b241 | 1954 | UnitWriteFlags flags, |
718db961 | 1955 | sd_bus_error *error) { |
9f2e86af LP |
1956 | |
1957 | int r; | |
1958 | ||
1959 | assert(u); | |
1960 | assert(name); | |
718db961 | 1961 | assert(message); |
9f2e86af | 1962 | |
cb31470f ZJS |
1963 | /* Handles setting properties both "live" (i.e. at any time during runtime), and during creation (for |
1964 | * transient units that are being created). */ | |
721060d4 | 1965 | |
9f2e86af | 1966 | if (streq(name, "Description")) { |
718db961 | 1967 | const char *d; |
9f2e86af | 1968 | |
718db961 LP |
1969 | r = sd_bus_message_read(message, "s", &d); |
1970 | if (r < 0) | |
1971 | return r; | |
8aec412f | 1972 | |
2e59b241 | 1973 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
718db961 | 1974 | r = unit_set_description(u, d); |
8aec412f LP |
1975 | if (r < 0) |
1976 | return r; | |
b9316fb0 | 1977 | |
2e59b241 | 1978 | unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "Description=%s", d); |
8aec412f | 1979 | } |
9f2e86af LP |
1980 | |
1981 | return 1; | |
721060d4 LP |
1982 | } |
1983 | ||
0dd3c090 ZJS |
1984 | /* A setting that only applies to active units. We don't actually write this to /run, this state is |
1985 | * managed internally. "+foo" sets flag foo, "-foo" unsets flag foo, just "foo" resets flags to | |
1986 | * foo. The last type cannot be mixed with "+" or "-". */ | |
1987 | ||
1988 | if (streq(name, "Markers")) { | |
1989 | unsigned settings = 0, mask = 0; | |
1990 | bool some_plus_minus = false, some_absolute = false; | |
1991 | ||
1992 | r = sd_bus_message_enter_container(message, 'a', "s"); | |
1993 | if (r < 0) | |
1994 | return r; | |
1995 | ||
1996 | for (;;) { | |
1997 | const char *word; | |
1998 | bool b; | |
1999 | ||
2000 | r = sd_bus_message_read(message, "s", &word); | |
2001 | if (r < 0) | |
2002 | return r; | |
2003 | if (r == 0) | |
2004 | break; | |
2005 | ||
2006 | if (IN_SET(word[0], '+', '-')) { | |
2007 | b = word[0] == '+'; | |
2008 | word++; | |
2009 | some_plus_minus = true; | |
2010 | } else { | |
2011 | b = true; | |
2012 | some_absolute = true; | |
2013 | } | |
2014 | ||
2015 | UnitMarker m = unit_marker_from_string(word); | |
2016 | if (m < 0) | |
2017 | return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING, | |
2018 | "Unknown marker \"%s\".", word); | |
2019 | ||
2020 | SET_FLAG(settings, 1u << m, b); | |
2021 | SET_FLAG(mask, 1u << m, true); | |
2022 | } | |
2023 | ||
2024 | r = sd_bus_message_exit_container(message); | |
2025 | if (r < 0) | |
2026 | return r; | |
2027 | ||
2028 | if (some_plus_minus && some_absolute) | |
1b09b81c | 2029 | return sd_bus_error_set(error, BUS_ERROR_BAD_UNIT_SETTING, "Bad marker syntax."); |
0dd3c090 ZJS |
2030 | |
2031 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
2032 | if (some_absolute) | |
2033 | u->markers = settings; | |
2034 | else | |
2035 | u->markers = settings | (u->markers & ~mask); | |
2036 | } | |
2037 | ||
2038 | return 1; | |
2039 | } | |
2040 | ||
721060d4 LP |
2041 | return 0; |
2042 | } | |
2043 | ||
54fcb619 ZJS |
2044 | static int bus_set_transient_emergency_action( |
2045 | Unit *u, | |
2046 | const char *name, | |
2047 | EmergencyAction *p, | |
2048 | sd_bus_message *message, | |
2049 | UnitWriteFlags flags, | |
2050 | sd_bus_error *error) { | |
2051 | ||
2052 | const char *s; | |
2053 | EmergencyAction v; | |
2054 | int r; | |
54fcb619 ZJS |
2055 | |
2056 | assert(p); | |
2057 | ||
2058 | r = sd_bus_message_read(message, "s", &s); | |
2059 | if (r < 0) | |
2060 | return r; | |
2061 | ||
4870133b | 2062 | r = parse_emergency_action(s, u->manager->runtime_scope, &v); |
db2df550 | 2063 | if (r < 0) |
54fcb619 | 2064 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
119f0f28 | 2065 | r == -EOPNOTSUPP ? "%s setting invalid for manager type: %s" |
54fcb619 ZJS |
2066 | : "Invalid %s setting: %s", |
2067 | name, s); | |
2068 | ||
2069 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
2070 | *p = v; | |
2071 | unit_write_settingf(u, flags, name, | |
2072 | "%s=%s", name, s); | |
2073 | } | |
2074 | ||
2075 | return 1; | |
2076 | } | |
2077 | ||
7af67e9a LP |
2078 | static int bus_set_transient_exit_status( |
2079 | Unit *u, | |
2080 | const char *name, | |
2081 | int *p, | |
2082 | sd_bus_message *message, | |
2083 | UnitWriteFlags flags, | |
2084 | sd_bus_error *error) { | |
2085 | ||
2086 | int32_t k; | |
2087 | int r; | |
2088 | ||
2089 | assert(p); | |
2090 | ||
2091 | r = sd_bus_message_read(message, "i", &k); | |
2092 | if (r < 0) | |
2093 | return r; | |
2094 | ||
2095 | if (k > 255) | |
1b09b81c | 2096 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Exit status must be in range 0…255 or negative."); |
7af67e9a LP |
2097 | |
2098 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
2099 | *p = k < 0 ? -1 : k; | |
2100 | ||
2101 | if (k < 0) | |
2102 | unit_write_settingf(u, flags, name, "%s=", name); | |
2103 | else | |
2104 | unit_write_settingf(u, flags, name, "%s=%i", name, k); | |
2105 | } | |
2106 | ||
2107 | return 1; | |
2108 | } | |
2109 | ||
faa781cf | 2110 | static BUS_DEFINE_SET_TRANSIENT_PARSE(collect_mode, CollectMode, collect_mode_from_string); |
faa781cf YW |
2111 | static BUS_DEFINE_SET_TRANSIENT_PARSE(job_mode, JobMode, job_mode_from_string); |
2112 | ||
2113 | static int bus_set_transient_conditions( | |
2114 | Unit *u, | |
2115 | const char *name, | |
2116 | Condition **list, | |
2117 | bool is_condition, | |
2118 | sd_bus_message *message, | |
2119 | UnitWriteFlags flags, | |
2120 | sd_bus_error *error) { | |
2121 | ||
2122 | const char *type_name, *param; | |
2123 | int trigger, negate, r; | |
2124 | bool empty = true; | |
2125 | ||
2126 | assert(list); | |
2127 | ||
2128 | r = sd_bus_message_enter_container(message, 'a', "(sbbs)"); | |
2129 | if (r < 0) | |
2130 | return r; | |
2131 | ||
2132 | while ((r = sd_bus_message_read(message, "(sbbs)", &type_name, &trigger, &negate, ¶m)) > 0) { | |
2133 | ConditionType t; | |
2134 | ||
2135 | t = is_condition ? condition_type_from_string(type_name) : assert_type_from_string(type_name); | |
2136 | if (t < 0) | |
2137 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid condition type: %s", type_name); | |
2138 | ||
476cfe62 LP |
2139 | if (isempty(param)) |
2140 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Condition parameter in %s is empty", type_name); | |
faa781cf | 2141 | |
476cfe62 LP |
2142 | if (condition_takes_path(t) && !path_is_absolute(param)) |
2143 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path in condition %s is not absolute: %s", type_name, param); | |
faa781cf YW |
2144 | |
2145 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
2146 | Condition *c; | |
2147 | ||
2148 | c = condition_new(t, param, trigger, negate); | |
2149 | if (!c) | |
2150 | return -ENOMEM; | |
2151 | ||
2152 | LIST_PREPEND(conditions, *list, c); | |
2153 | ||
476cfe62 LP |
2154 | unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, |
2155 | "%s=%s%s%s", type_name, | |
2156 | trigger ? "|" : "", negate ? "!" : "", param); | |
faa781cf YW |
2157 | } |
2158 | ||
2159 | empty = false; | |
2160 | } | |
2161 | if (r < 0) | |
2162 | return r; | |
2163 | ||
2164 | r = sd_bus_message_exit_container(message); | |
2165 | if (r < 0) | |
2166 | return r; | |
2167 | ||
2168 | if (!UNIT_WRITE_FLAGS_NOOP(flags) && empty) { | |
2169 | *list = condition_free_list(*list); | |
2170 | unit_write_settingf(u, flags, name, "%sNull=", is_condition ? "Condition" : "Assert"); | |
2171 | } | |
2172 | ||
2173 | return 1; | |
2174 | } | |
2175 | ||
721060d4 LP |
2176 | static int bus_unit_set_transient_property( |
2177 | Unit *u, | |
2178 | const char *name, | |
2179 | sd_bus_message *message, | |
2180 | UnitWriteFlags flags, | |
2181 | sd_bus_error *error) { | |
2182 | ||
170d4026 | 2183 | UnitDependency d; |
721060d4 | 2184 | int r; |
261420ba | 2185 | |
721060d4 LP |
2186 | assert(u); |
2187 | assert(name); | |
2188 | assert(message); | |
2189 | ||
cb31470f ZJS |
2190 | /* Handles settings when transient units are created. This settings cannot be altered anymore after |
2191 | * the unit has been created. */ | |
721060d4 | 2192 | |
faa781cf YW |
2193 | if (streq(name, "SourcePath")) |
2194 | return bus_set_transient_path(u, name, &u->source_path, message, flags, error); | |
261420ba | 2195 | |
faa781cf YW |
2196 | if (streq(name, "StopWhenUnneeded")) |
2197 | return bus_set_transient_bool(u, name, &u->stop_when_unneeded, message, flags, error); | |
261420ba | 2198 | |
faa781cf YW |
2199 | if (streq(name, "RefuseManualStart")) |
2200 | return bus_set_transient_bool(u, name, &u->refuse_manual_start, message, flags, error); | |
261420ba | 2201 | |
faa781cf YW |
2202 | if (streq(name, "RefuseManualStop")) |
2203 | return bus_set_transient_bool(u, name, &u->refuse_manual_stop, message, flags, error); | |
c221420b | 2204 | |
faa781cf YW |
2205 | if (streq(name, "AllowIsolate")) |
2206 | return bus_set_transient_bool(u, name, &u->allow_isolate, message, flags, error); | |
5afe510c | 2207 | |
faa781cf YW |
2208 | if (streq(name, "DefaultDependencies")) |
2209 | return bus_set_transient_bool(u, name, &u->default_dependencies, message, flags, error); | |
2210 | ||
559214cb LB |
2211 | if (streq(name, "SurviveFinalKillSignal")) |
2212 | return bus_set_transient_bool(u, name, &u->survive_final_kill_signal, message, flags, error); | |
2213 | ||
294446dc LP |
2214 | if (streq(name, "OnSuccessJobMode")) |
2215 | return bus_set_transient_job_mode(u, name, &u->on_success_job_mode, message, flags, error); | |
2216 | ||
faa781cf YW |
2217 | if (streq(name, "OnFailureJobMode")) |
2218 | return bus_set_transient_job_mode(u, name, &u->on_failure_job_mode, message, flags, error); | |
2219 | ||
2220 | if (streq(name, "IgnoreOnIsolate")) | |
2221 | return bus_set_transient_bool(u, name, &u->ignore_on_isolate, message, flags, error); | |
2222 | ||
2223 | if (streq(name, "JobTimeoutUSec")) { | |
2224 | r = bus_set_transient_usec_fix_0(u, name, &u->job_timeout, message, flags, error); | |
2225 | if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags) && !u->job_running_timeout_set) | |
2226 | u->job_running_timeout = u->job_timeout; | |
2227 | } | |
2228 | ||
2229 | if (streq(name, "JobRunningTimeoutUSec")) { | |
2230 | r = bus_set_transient_usec_fix_0(u, name, &u->job_running_timeout, message, flags, error); | |
2231 | if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags)) | |
2232 | u->job_running_timeout_set = true; | |
2233 | ||
2234 | return r; | |
2235 | } | |
2236 | ||
2237 | if (streq(name, "JobTimeoutAction")) | |
2238 | return bus_set_transient_emergency_action(u, name, &u->job_timeout_action, message, flags, error); | |
2239 | ||
2240 | if (streq(name, "JobTimeoutRebootArgument")) | |
b7ad4778 | 2241 | return bus_set_transient_reboot_parameter(u, name, &u->job_timeout_reboot_arg, message, flags, error); |
faa781cf YW |
2242 | |
2243 | if (streq(name, "StartLimitIntervalUSec")) | |
7bf081a1 | 2244 | return bus_set_transient_usec(u, name, &u->start_ratelimit.interval, message, flags, error); |
faa781cf YW |
2245 | |
2246 | if (streq(name, "StartLimitBurst")) | |
7bf081a1 | 2247 | return bus_set_transient_unsigned(u, name, &u->start_ratelimit.burst, message, flags, error); |
faa781cf YW |
2248 | |
2249 | if (streq(name, "StartLimitAction")) | |
2250 | return bus_set_transient_emergency_action(u, name, &u->start_limit_action, message, flags, error); | |
2251 | ||
2252 | if (streq(name, "FailureAction")) | |
2253 | return bus_set_transient_emergency_action(u, name, &u->failure_action, message, flags, error); | |
2254 | ||
2255 | if (streq(name, "SuccessAction")) | |
2256 | return bus_set_transient_emergency_action(u, name, &u->success_action, message, flags, error); | |
2257 | ||
7af67e9a LP |
2258 | if (streq(name, "FailureActionExitStatus")) |
2259 | return bus_set_transient_exit_status(u, name, &u->failure_action_exit_status, message, flags, error); | |
2260 | ||
2261 | if (streq(name, "SuccessActionExitStatus")) | |
2262 | return bus_set_transient_exit_status(u, name, &u->success_action_exit_status, message, flags, error); | |
2263 | ||
faa781cf | 2264 | if (streq(name, "RebootArgument")) |
b7ad4778 | 2265 | return bus_set_transient_reboot_parameter(u, name, &u->reboot_arg, message, flags, error); |
faa781cf YW |
2266 | |
2267 | if (streq(name, "CollectMode")) | |
2268 | return bus_set_transient_collect_mode(u, name, &u->collect_mode, message, flags, error); | |
2269 | ||
2270 | if (streq(name, "Conditions")) | |
2271 | return bus_set_transient_conditions(u, name, &u->conditions, true, message, flags, error); | |
2272 | ||
2273 | if (streq(name, "Asserts")) | |
2274 | return bus_set_transient_conditions(u, name, &u->asserts, false, message, flags, error); | |
2275 | ||
2276 | if (streq(name, "Documentation")) { | |
2277 | _cleanup_strv_free_ char **l = NULL; | |
faa781cf YW |
2278 | |
2279 | r = sd_bus_message_read_strv(message, &l); | |
5afe510c LP |
2280 | if (r < 0) |
2281 | return r; | |
2282 | ||
de010b0b | 2283 | STRV_FOREACH(p, l) |
faa781cf YW |
2284 | if (!documentation_url_is_valid(*p)) |
2285 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid URL in %s: %s", name, *p); | |
5afe510c | 2286 | |
2e59b241 | 2287 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
faa781cf YW |
2288 | if (strv_isempty(l)) { |
2289 | u->documentation = strv_free(u->documentation); | |
2290 | unit_write_settingf(u, flags, name, "%s=", name); | |
2291 | } else { | |
42126367 LP |
2292 | r = strv_extend_strv(&u->documentation, l, /* filter_duplicates= */ false); |
2293 | if (r < 0) | |
2294 | return r; | |
faa781cf YW |
2295 | |
2296 | STRV_FOREACH(p, l) | |
2297 | unit_write_settingf(u, flags, name, "%s=%s", name, *p); | |
2298 | } | |
5afe510c LP |
2299 | } |
2300 | ||
2301 | return 1; | |
2302 | ||
d79200e2 LP |
2303 | } else if (streq(name, "Slice")) { |
2304 | Unit *slice; | |
c221420b | 2305 | const char *s; |
c221420b | 2306 | |
d79200e2 | 2307 | if (!UNIT_HAS_CGROUP_CONTEXT(u)) |
1b09b81c | 2308 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "The slice property is only available for units with control groups."); |
d79200e2 | 2309 | if (u->type == UNIT_SLICE) |
1b09b81c | 2310 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Slice may not be set for slice units."); |
efdb0237 | 2311 | if (unit_has_name(u, SPECIAL_INIT_SCOPE)) |
1b09b81c | 2312 | return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot set slice for init.scope"); |
d79200e2 | 2313 | |
718db961 LP |
2314 | r = sd_bus_message_read(message, "s", &s); |
2315 | if (r < 0) | |
2316 | return r; | |
c221420b | 2317 | |
d79200e2 LP |
2318 | if (!unit_name_is_valid(s, UNIT_NAME_PLAIN)) |
2319 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name '%s'", s); | |
2320 | ||
aea529e5 LP |
2321 | /* Note that we do not dispatch the load queue here yet, as we don't want our own transient unit to be |
2322 | * loaded while we are still setting it up. Or in other words, we use manager_load_unit_prepare() | |
2323 | * instead of manager_load_unit() on purpose, here. */ | |
2324 | r = manager_load_unit_prepare(u->manager, s, NULL, error, &slice); | |
d79200e2 LP |
2325 | if (r < 0) |
2326 | return r; | |
c221420b | 2327 | |
d79200e2 LP |
2328 | if (slice->type != UNIT_SLICE) |
2329 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit name '%s' is not a slice", s); | |
b9316fb0 | 2330 | |
2e59b241 | 2331 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
899acf5c | 2332 | r = unit_set_slice(u, slice); |
8aec412f LP |
2333 | if (r < 0) |
2334 | return r; | |
c221420b | 2335 | |
2e59b241 | 2336 | unit_write_settingf(u, flags|UNIT_PRIVATE, name, "Slice=%s", s); |
8aec412f | 2337 | } |
b9ec9359 | 2338 | |
c221420b | 2339 | return 1; |
d79200e2 | 2340 | |
9e615fa3 | 2341 | } else if (STR_IN_SET(name, "RequiresMountsFor", "WantsMountsFor")) { |
faa781cf | 2342 | _cleanup_strv_free_ char **l = NULL; |
faa781cf YW |
2343 | |
2344 | r = sd_bus_message_read_strv(message, &l); | |
2345 | if (r < 0) | |
2346 | return r; | |
2347 | ||
2348 | STRV_FOREACH(p, l) { | |
4ff361cc | 2349 | path_simplify(*p); |
b459700b | 2350 | |
faa781cf YW |
2351 | if (!path_is_absolute(*p)) |
2352 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s is not absolute: %s", name, *p); | |
2353 | ||
b459700b YW |
2354 | if (!path_is_valid(*p)) |
2355 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s has invalid length: %s", name, *p); | |
2356 | ||
2357 | if (!path_is_normalized(*p)) | |
2358 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s is not normalized: %s", name, *p); | |
2359 | ||
faa781cf | 2360 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
9e615fa3 | 2361 | r = unit_add_mounts_for(u, *p, UNIT_DEPENDENCY_FILE, unit_mount_dependency_type_from_string(name)); |
faa781cf | 2362 | if (r < 0) |
9e615fa3 | 2363 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Failed to add requested mount \"%s\": %m", *p); |
7fb3ee51 | 2364 | |
faa781cf YW |
2365 | unit_write_settingf(u, flags, name, "%s=%s", name, *p); |
2366 | } | |
f32b43bd | 2367 | } |
7fb3ee51 | 2368 | |
faa781cf YW |
2369 | return 1; |
2370 | } | |
2371 | ||
2372 | if (streq(name, "RequiresOverridable")) | |
2373 | d = UNIT_REQUIRES; /* redirect for obsolete unit dependency type */ | |
2374 | else if (streq(name, "RequisiteOverridable")) | |
2375 | d = UNIT_REQUISITE; /* same here */ | |
2376 | else | |
2377 | d = unit_dependency_from_string(name); | |
2378 | ||
2379 | if (d >= 0) { | |
2380 | const char *other; | |
2381 | ||
40430848 LP |
2382 | if (!IN_SET(d, |
2383 | UNIT_REQUIRES, | |
2384 | UNIT_REQUISITE, | |
2385 | UNIT_WANTS, | |
2386 | UNIT_BINDS_TO, | |
2387 | UNIT_PART_OF, | |
0bc488c9 | 2388 | UNIT_UPHOLDS, |
40430848 LP |
2389 | UNIT_CONFLICTS, |
2390 | UNIT_BEFORE, | |
2391 | UNIT_AFTER, | |
294446dc | 2392 | UNIT_ON_SUCCESS, |
40430848 LP |
2393 | UNIT_ON_FAILURE, |
2394 | UNIT_PROPAGATES_RELOAD_TO, | |
2395 | UNIT_RELOAD_PROPAGATED_FROM, | |
ffec78c0 LP |
2396 | UNIT_PROPAGATES_STOP_TO, |
2397 | UNIT_STOP_PROPAGATED_FROM, | |
40430848 LP |
2398 | UNIT_JOINS_NAMESPACE_OF)) |
2399 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Dependency type %s may not be created transiently.", unit_dependency_to_string(d)); | |
2400 | ||
718db961 LP |
2401 | r = sd_bus_message_enter_container(message, 'a', "s"); |
2402 | if (r < 0) | |
2403 | return r; | |
7fb3ee51 | 2404 | |
718db961 | 2405 | while ((r = sd_bus_message_read(message, "s", &other)) > 0) { |
7410616c | 2406 | if (!unit_name_is_valid(other, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) |
718db961 | 2407 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name %s", other); |
7fb3ee51 | 2408 | |
2e59b241 | 2409 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
b9ec9359 | 2410 | _cleanup_free_ char *label = NULL; |
7fb3ee51 | 2411 | |
35d8c19a | 2412 | r = unit_add_dependency_by_name(u, d, other, true, UNIT_DEPENDENCY_FILE); |
7fb3ee51 LP |
2413 | if (r < 0) |
2414 | return r; | |
2415 | ||
605405c6 | 2416 | label = strjoin(name, "-", other); |
7fb3ee51 LP |
2417 | if (!label) |
2418 | return -ENOMEM; | |
2419 | ||
faa781cf | 2420 | unit_write_settingf(u, flags, label, "%s=%s", unit_dependency_to_string(d), other); |
7fb3ee51 LP |
2421 | } |
2422 | ||
7fb3ee51 | 2423 | } |
718db961 LP |
2424 | if (r < 0) |
2425 | return r; | |
7fb3ee51 | 2426 | |
6ce270b1 LP |
2427 | r = sd_bus_message_exit_container(message); |
2428 | if (r < 0) | |
2429 | return r; | |
2430 | ||
7fb3ee51 | 2431 | return 1; |
05a98afd LP |
2432 | |
2433 | } else if (streq(name, "AddRef")) { | |
2434 | ||
2435 | int b; | |
2436 | ||
2437 | /* Why is this called "AddRef" rather than just "Ref", or "Reference"? There's already a "Ref()" method | |
2438 | * on the Unit interface, and it's probably not a good idea to expose a property and a method on the | |
2439 | * same interface (well, strictly speaking AddRef isn't exposed as full property, we just read it for | |
2440 | * transient units, but still). And "References" and "ReferencedBy" is already used as unit reference | |
2441 | * dependency type, hence let's not confuse things with that. | |
2442 | * | |
5238e957 | 2443 | * Note that we don't actually add the reference to the bus track. We do that only after the setup of |
05a98afd LP |
2444 | * the transient unit is complete, so that setting this property multiple times in the same transient |
2445 | * unit creation call doesn't count as individual references. */ | |
2446 | ||
2447 | r = sd_bus_message_read(message, "b", &b); | |
2448 | if (r < 0) | |
2449 | return r; | |
2450 | ||
2e59b241 | 2451 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) |
05a98afd LP |
2452 | u->bus_track_add = b; |
2453 | ||
2454 | return 1; | |
9f2e86af LP |
2455 | } |
2456 | ||
2457 | return 0; | |
2458 | } | |
2459 | ||
c2756a68 LP |
2460 | int bus_unit_set_properties( |
2461 | Unit *u, | |
718db961 | 2462 | sd_bus_message *message, |
2e59b241 | 2463 | UnitWriteFlags flags, |
c2756a68 | 2464 | bool commit, |
718db961 | 2465 | sd_bus_error *error) { |
c2756a68 | 2466 | |
8e2af478 | 2467 | bool for_real = false; |
8e2af478 LP |
2468 | unsigned n = 0; |
2469 | int r; | |
2470 | ||
2471 | assert(u); | |
718db961 | 2472 | assert(message); |
8e2af478 | 2473 | |
4a055e5a ZJS |
2474 | /* We iterate through the array twice. First run just checks if all passed data is valid, second run |
2475 | * actually applies it. This implements transaction-like behaviour without actually providing full | |
2476 | * transactions. */ | |
8e2af478 | 2477 | |
718db961 LP |
2478 | r = sd_bus_message_enter_container(message, 'a', "(sv)"); |
2479 | if (r < 0) | |
44d82df4 | 2480 | goto error; |
8e2af478 | 2481 | |
8e2af478 | 2482 | for (;;) { |
8e2af478 | 2483 | const char *name; |
2e59b241 | 2484 | UnitWriteFlags f; |
8e2af478 | 2485 | |
718db961 LP |
2486 | r = sd_bus_message_enter_container(message, 'r', "sv"); |
2487 | if (r < 0) | |
44d82df4 | 2488 | goto error; |
718db961 | 2489 | if (r == 0) { |
2e59b241 | 2490 | if (for_real || UNIT_WRITE_FLAGS_NOOP(flags)) |
8e2af478 LP |
2491 | break; |
2492 | ||
2493 | /* Reached EOF. Let's try again, and this time for realz... */ | |
718db961 LP |
2494 | r = sd_bus_message_rewind(message, false); |
2495 | if (r < 0) | |
44d82df4 | 2496 | goto error; |
6ce270b1 | 2497 | |
8e2af478 LP |
2498 | for_real = true; |
2499 | continue; | |
2500 | } | |
2501 | ||
718db961 LP |
2502 | r = sd_bus_message_read(message, "s", &name); |
2503 | if (r < 0) | |
44d82df4 | 2504 | goto error; |
8e2af478 | 2505 | |
718db961 LP |
2506 | r = sd_bus_message_enter_container(message, 'v', NULL); |
2507 | if (r < 0) | |
44d82df4 | 2508 | goto error; |
8e2af478 | 2509 | |
2e59b241 LP |
2510 | /* If not for real, then mask out the two target flags */ |
2511 | f = for_real ? flags : (flags & ~(UNIT_RUNTIME|UNIT_PERSISTENT)); | |
2512 | ||
eab62c01 ZJS |
2513 | if (UNIT_VTABLE(u)->bus_set_property) |
2514 | r = UNIT_VTABLE(u)->bus_set_property(u, name, message, f, error); | |
2515 | else | |
2516 | r = 0; | |
9f2e86af | 2517 | if (r == 0 && u->transient && u->load_state == UNIT_STUB) |
2e59b241 | 2518 | r = bus_unit_set_transient_property(u, name, message, f, error); |
721060d4 LP |
2519 | if (r == 0) |
2520 | r = bus_unit_set_live_property(u, name, message, f, error); | |
718db961 | 2521 | if (r < 0) |
44d82df4 | 2522 | goto error; |
721060d4 | 2523 | |
718db961 | 2524 | if (r == 0) |
cb31470f ZJS |
2525 | return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, |
2526 | "Cannot set property %s, or unknown property.", name); | |
718db961 LP |
2527 | |
2528 | r = sd_bus_message_exit_container(message); | |
8e2af478 | 2529 | if (r < 0) |
44d82df4 | 2530 | goto error; |
8e2af478 | 2531 | |
718db961 LP |
2532 | r = sd_bus_message_exit_container(message); |
2533 | if (r < 0) | |
44d82df4 | 2534 | goto error; |
8e2af478 LP |
2535 | |
2536 | n += for_real; | |
2537 | } | |
2538 | ||
6ce270b1 LP |
2539 | r = sd_bus_message_exit_container(message); |
2540 | if (r < 0) | |
44d82df4 | 2541 | goto error; |
6ce270b1 | 2542 | |
c2756a68 | 2543 | if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties) |
8e2af478 LP |
2544 | UNIT_VTABLE(u)->bus_commit_properties(u); |
2545 | ||
241da328 | 2546 | return n; |
44d82df4 ZJS |
2547 | |
2548 | error: | |
2549 | /* Pretty much any of the calls above can fail if the message is not formed properly | |
2550 | * or if it has unexpected contents. Fill in a more informative error message here. */ | |
2551 | if (sd_bus_error_is_set(error)) | |
2552 | return r; | |
2553 | return sd_bus_error_set_errnof(error, r, | |
2554 | r == -ENXIO ? "Failed to set unit properties: Unexpected message contents" | |
2555 | : "Failed to set unit properties: %m"); | |
8e2af478 | 2556 | } |
000a996d | 2557 | |
e49da001 | 2558 | int bus_unit_validate_load_state(Unit *u, sd_bus_error *error) { |
6eb7c172 | 2559 | assert(u); |
000a996d | 2560 | |
e49da001 | 2561 | /* Generates a pretty error if a unit isn't properly loaded. */ |
000a996d | 2562 | |
e49da001 LP |
2563 | switch (u->load_state) { |
2564 | ||
2565 | case UNIT_LOADED: | |
2566 | return 0; | |
000a996d | 2567 | |
e49da001 | 2568 | case UNIT_NOT_FOUND: |
b21d2f81 | 2569 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not found.", u->id); |
000a996d | 2570 | |
c4555ad8 LP |
2571 | case UNIT_BAD_SETTING: |
2572 | return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING, "Unit %s has a bad unit file setting.", u->id); | |
2573 | ||
e49da001 | 2574 | case UNIT_ERROR: /* Only show .load_error in UNIT_ERROR state */ |
6b10a2e0 LP |
2575 | return sd_bus_error_set_errnof(error, u->load_error, |
2576 | "Unit %s failed to load properly, please adjust/correct and reload service manager: %m", u->id); | |
e49da001 LP |
2577 | |
2578 | case UNIT_MASKED: | |
2579 | return sd_bus_error_setf(error, BUS_ERROR_UNIT_MASKED, "Unit %s is masked.", u->id); | |
2580 | ||
2581 | case UNIT_STUB: | |
2582 | case UNIT_MERGED: | |
2583 | default: | |
2584 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unexpected load state of unit %s", u->id); | |
2585 | } | |
000a996d | 2586 | } |
05a98afd | 2587 | |
c5a97ed1 | 2588 | static int bus_unit_track_handler(sd_bus_track *t, void *userdata) { |
99534007 | 2589 | Unit *u = ASSERT_PTR(userdata); |
05a98afd LP |
2590 | |
2591 | assert(t); | |
05a98afd LP |
2592 | |
2593 | u->bus_track = sd_bus_track_unref(u->bus_track); /* make sure we aren't called again */ | |
2594 | ||
e5c36295 LP |
2595 | /* If the client that tracks us disappeared, then there's reason to believe that the cgroup is empty now too, |
2596 | * let's see */ | |
2597 | unit_add_to_cgroup_empty_queue(u); | |
2598 | ||
2599 | /* Also add the unit to the GC queue, after all if the client left it might be time to GC this unit */ | |
05a98afd | 2600 | unit_add_to_gc_queue(u); |
e5c36295 | 2601 | |
05a98afd LP |
2602 | return 0; |
2603 | } | |
2604 | ||
c5a97ed1 | 2605 | static int bus_unit_allocate_bus_track(Unit *u) { |
05a98afd LP |
2606 | int r; |
2607 | ||
2608 | assert(u); | |
2609 | ||
2610 | if (u->bus_track) | |
2611 | return 0; | |
2612 | ||
c5a97ed1 | 2613 | r = sd_bus_track_new(u->manager->api_bus, &u->bus_track, bus_unit_track_handler, u); |
05a98afd LP |
2614 | if (r < 0) |
2615 | return r; | |
2616 | ||
2617 | r = sd_bus_track_set_recursive(u->bus_track, true); | |
2618 | if (r < 0) { | |
2619 | u->bus_track = sd_bus_track_unref(u->bus_track); | |
2620 | return r; | |
2621 | } | |
2622 | ||
2623 | return 0; | |
2624 | } | |
2625 | ||
2626 | int bus_unit_track_add_name(Unit *u, const char *name) { | |
2627 | int r; | |
2628 | ||
2629 | assert(u); | |
2630 | ||
c5a97ed1 | 2631 | r = bus_unit_allocate_bus_track(u); |
05a98afd LP |
2632 | if (r < 0) |
2633 | return r; | |
2634 | ||
2635 | return sd_bus_track_add_name(u->bus_track, name); | |
2636 | } | |
2637 | ||
2638 | int bus_unit_track_add_sender(Unit *u, sd_bus_message *m) { | |
2639 | int r; | |
2640 | ||
2641 | assert(u); | |
2642 | ||
c5a97ed1 | 2643 | r = bus_unit_allocate_bus_track(u); |
05a98afd LP |
2644 | if (r < 0) |
2645 | return r; | |
2646 | ||
2647 | return sd_bus_track_add_sender(u->bus_track, m); | |
2648 | } | |
2649 | ||
2650 | int bus_unit_track_remove_sender(Unit *u, sd_bus_message *m) { | |
2651 | assert(u); | |
2652 | ||
cb31470f ZJS |
2653 | /* If we haven't allocated the bus track object yet, then there's definitely no reference taken yet, |
2654 | * return an error */ | |
05a98afd LP |
2655 | if (!u->bus_track) |
2656 | return -EUNATCH; | |
2657 | ||
2658 | return sd_bus_track_remove_sender(u->bus_track, m); | |
2659 | } |