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52ad194e | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
663996b3 | 2 | |
60f067b4 | 3 | #include "sd-bus.h" |
db2df898 MP |
4 | |
5 | #include "alloc-util.h" | |
f5e65279 | 6 | #include "bpf-firewall.h" |
db2df898 MP |
7 | #include "bus-common-errors.h" |
8 | #include "cgroup-util.h" | |
1d42b86d | 9 | #include "condition.h" |
2897b343 | 10 | #include "dbus-job.h" |
db2df898 | 11 | #include "dbus-unit.h" |
1d42b86d | 12 | #include "dbus-util.h" |
db2df898 | 13 | #include "dbus.h" |
aa27b158 | 14 | #include "fd-util.h" |
db2df898 | 15 | #include "locale-util.h" |
663996b3 | 16 | #include "log.h" |
1d42b86d | 17 | #include "path-util.h" |
aa27b158 | 18 | #include "process-util.h" |
663996b3 | 19 | #include "selinux-access.h" |
aa27b158 | 20 | #include "signal-util.h" |
d9dfd233 | 21 | #include "special.h" |
db2df898 MP |
22 | #include "string-util.h" |
23 | #include "strv.h" | |
24 | #include "user-util.h" | |
1d42b86d | 25 | #include "web-util.h" |
663996b3 | 26 | |
b012e921 MB |
27 | static bool unit_can_start_refuse_manual(Unit *u) { |
28 | return unit_can_start(u) && !u->refuse_manual_start; | |
29 | } | |
30 | ||
31 | static bool unit_can_stop_refuse_manual(Unit *u) { | |
32 | return unit_can_stop(u) && !u->refuse_manual_stop; | |
33 | } | |
34 | ||
35 | static bool unit_can_isolate_refuse_manual(Unit *u) { | |
36 | return unit_can_isolate(u) && !u->refuse_manual_start; | |
37 | } | |
38 | ||
52ad194e | 39 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_collect_mode, collect_mode, CollectMode); |
60f067b4 JS |
40 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_load_state, unit_load_state, UnitLoadState); |
41 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_job_mode, job_mode, JobMode); | |
8a584da2 | 42 | static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_emergency_action, emergency_action, EmergencyAction); |
b012e921 MB |
43 | static BUS_DEFINE_PROPERTY_GET(property_get_description, "s", Unit, unit_description); |
44 | static BUS_DEFINE_PROPERTY_GET2(property_get_active_state, "s", Unit, unit_active_state, unit_active_state_to_string); | |
45 | static BUS_DEFINE_PROPERTY_GET(property_get_sub_state, "s", Unit, unit_sub_state_to_string); | |
46 | static BUS_DEFINE_PROPERTY_GET2(property_get_unit_file_state, "s", Unit, unit_get_unit_file_state, unit_file_state_to_string); | |
47 | static BUS_DEFINE_PROPERTY_GET(property_get_can_reload, "b", Unit, unit_can_reload); | |
48 | static BUS_DEFINE_PROPERTY_GET(property_get_can_start, "b", Unit, unit_can_start_refuse_manual); | |
49 | static BUS_DEFINE_PROPERTY_GET(property_get_can_stop, "b", Unit, unit_can_stop_refuse_manual); | |
50 | static BUS_DEFINE_PROPERTY_GET(property_get_can_isolate, "b", Unit, unit_can_isolate_refuse_manual); | |
51 | static BUS_DEFINE_PROPERTY_GET(property_get_need_daemon_reload, "b", Unit, unit_need_daemon_reload); | |
52 | static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_empty_strv, "as", 0); | |
60f067b4 JS |
53 | |
54 | static int property_get_names( | |
55 | sd_bus *bus, | |
56 | const char *path, | |
57 | const char *interface, | |
58 | const char *property, | |
59 | sd_bus_message *reply, | |
60 | void *userdata, | |
61 | sd_bus_error *error) { | |
62 | ||
b012e921 | 63 | Set **s = userdata; |
60f067b4 JS |
64 | Iterator i; |
65 | const char *t; | |
66 | int r; | |
663996b3 | 67 | |
60f067b4 JS |
68 | assert(bus); |
69 | assert(reply); | |
b012e921 | 70 | assert(s); |
663996b3 | 71 | |
60f067b4 JS |
72 | r = sd_bus_message_open_container(reply, 'a', "s"); |
73 | if (r < 0) | |
74 | return r; | |
663996b3 | 75 | |
b012e921 | 76 | SET_FOREACH(t, *s, i) { |
60f067b4 JS |
77 | r = sd_bus_message_append(reply, "s", t); |
78 | if (r < 0) | |
79 | return r; | |
80 | } | |
663996b3 | 81 | |
60f067b4 | 82 | return sd_bus_message_close_container(reply); |
663996b3 MS |
83 | } |
84 | ||
60f067b4 JS |
85 | static int property_get_following( |
86 | sd_bus *bus, | |
87 | const char *path, | |
88 | const char *interface, | |
89 | const char *property, | |
90 | sd_bus_message *reply, | |
91 | void *userdata, | |
92 | sd_bus_error *error) { | |
93 | ||
94 | Unit *u = userdata, *f; | |
663996b3 | 95 | |
60f067b4 JS |
96 | assert(bus); |
97 | assert(reply); | |
663996b3 MS |
98 | assert(u); |
99 | ||
100 | f = unit_following(u); | |
b012e921 | 101 | return sd_bus_message_append(reply, "s", f ? f->id : NULL); |
663996b3 MS |
102 | } |
103 | ||
60f067b4 JS |
104 | static int property_get_dependencies( |
105 | sd_bus *bus, | |
106 | const char *path, | |
107 | const char *interface, | |
108 | const char *property, | |
109 | sd_bus_message *reply, | |
110 | void *userdata, | |
111 | sd_bus_error *error) { | |
14228c0d | 112 | |
b012e921 | 113 | Hashmap **h = userdata; |
663996b3 | 114 | Iterator j; |
60f067b4 | 115 | Unit *u; |
52ad194e | 116 | void *v; |
60f067b4 | 117 | int r; |
663996b3 | 118 | |
60f067b4 JS |
119 | assert(bus); |
120 | assert(reply); | |
b012e921 | 121 | assert(h); |
663996b3 | 122 | |
60f067b4 JS |
123 | r = sd_bus_message_open_container(reply, 'a', "s"); |
124 | if (r < 0) | |
125 | return r; | |
663996b3 | 126 | |
b012e921 | 127 | HASHMAP_FOREACH_KEY(v, u, *h, j) { |
60f067b4 JS |
128 | r = sd_bus_message_append(reply, "s", u->id); |
129 | if (r < 0) | |
130 | return r; | |
131 | } | |
663996b3 | 132 | |
60f067b4 | 133 | return sd_bus_message_close_container(reply); |
663996b3 MS |
134 | } |
135 | ||
52ad194e MB |
136 | static int property_get_requires_mounts_for( |
137 | sd_bus *bus, | |
138 | const char *path, | |
139 | const char *interface, | |
140 | const char *property, | |
141 | sd_bus_message *reply, | |
142 | void *userdata, | |
143 | sd_bus_error *error) { | |
144 | ||
b012e921 | 145 | Hashmap **h = userdata; |
52ad194e MB |
146 | const char *p; |
147 | Iterator j; | |
148 | void *v; | |
149 | int r; | |
150 | ||
151 | assert(bus); | |
152 | assert(reply); | |
b012e921 | 153 | assert(h); |
52ad194e MB |
154 | |
155 | r = sd_bus_message_open_container(reply, 'a', "s"); | |
156 | if (r < 0) | |
157 | return r; | |
158 | ||
b012e921 | 159 | HASHMAP_FOREACH_KEY(v, p, *h, j) { |
52ad194e MB |
160 | r = sd_bus_message_append(reply, "s", p); |
161 | if (r < 0) | |
162 | return r; | |
163 | } | |
164 | ||
165 | return sd_bus_message_close_container(reply); | |
166 | } | |
167 | ||
f47781d8 MP |
168 | static int property_get_unit_file_preset( |
169 | sd_bus *bus, | |
170 | const char *path, | |
171 | const char *interface, | |
172 | const char *property, | |
173 | sd_bus_message *reply, | |
174 | void *userdata, | |
175 | sd_bus_error *error) { | |
176 | ||
177 | Unit *u = userdata; | |
178 | int r; | |
179 | ||
180 | assert(bus); | |
181 | assert(reply); | |
182 | assert(u); | |
183 | ||
184 | r = unit_get_unit_file_preset(u); | |
185 | ||
186 | return sd_bus_message_append(reply, "s", | |
b012e921 | 187 | r < 0 ? NULL: |
f47781d8 MP |
188 | r > 0 ? "enabled" : "disabled"); |
189 | } | |
190 | ||
60f067b4 JS |
191 | static int property_get_job( |
192 | sd_bus *bus, | |
193 | const char *path, | |
194 | const char *interface, | |
195 | const char *property, | |
196 | sd_bus_message *reply, | |
197 | void *userdata, | |
198 | sd_bus_error *error) { | |
199 | ||
663996b3 | 200 | _cleanup_free_ char *p = NULL; |
b012e921 | 201 | Job **j = userdata; |
663996b3 | 202 | |
60f067b4 JS |
203 | assert(bus); |
204 | assert(reply); | |
b012e921 | 205 | assert(j); |
663996b3 | 206 | |
b012e921 | 207 | if (!*j) |
60f067b4 | 208 | return sd_bus_message_append(reply, "(uo)", 0, "/"); |
663996b3 | 209 | |
b012e921 | 210 | p = job_dbus_path(*j); |
60f067b4 | 211 | if (!p) |
663996b3 MS |
212 | return -ENOMEM; |
213 | ||
b012e921 | 214 | return sd_bus_message_append(reply, "(uo)", (*j)->id, p); |
663996b3 MS |
215 | } |
216 | ||
60f067b4 JS |
217 | static int property_get_conditions( |
218 | sd_bus *bus, | |
219 | const char *path, | |
220 | const char *interface, | |
221 | const char *property, | |
222 | sd_bus_message *reply, | |
223 | void *userdata, | |
224 | sd_bus_error *error) { | |
663996b3 | 225 | |
f47781d8 MP |
226 | const char *(*to_string)(ConditionType type) = NULL; |
227 | Condition **list = userdata, *c; | |
60f067b4 | 228 | int r; |
663996b3 | 229 | |
60f067b4 JS |
230 | assert(bus); |
231 | assert(reply); | |
f47781d8 MP |
232 | assert(list); |
233 | ||
234 | to_string = streq(property, "Asserts") ? assert_type_to_string : condition_type_to_string; | |
663996b3 | 235 | |
60f067b4 JS |
236 | r = sd_bus_message_open_container(reply, 'a', "(sbbsi)"); |
237 | if (r < 0) | |
238 | return r; | |
663996b3 | 239 | |
f47781d8 MP |
240 | LIST_FOREACH(conditions, c, *list) { |
241 | int tristate; | |
242 | ||
243 | tristate = | |
244 | c->result == CONDITION_UNTESTED ? 0 : | |
245 | c->result == CONDITION_SUCCEEDED ? 1 : -1; | |
246 | ||
60f067b4 | 247 | r = sd_bus_message_append(reply, "(sbbsi)", |
f47781d8 | 248 | to_string(c->type), |
60f067b4 | 249 | c->trigger, c->negate, |
f47781d8 | 250 | c->parameter, tristate); |
60f067b4 JS |
251 | if (r < 0) |
252 | return r; | |
14228c0d | 253 | |
60f067b4 | 254 | } |
663996b3 | 255 | |
60f067b4 | 256 | return sd_bus_message_close_container(reply); |
663996b3 MS |
257 | } |
258 | ||
60f067b4 JS |
259 | static int property_get_load_error( |
260 | sd_bus *bus, | |
261 | const char *path, | |
262 | const char *interface, | |
263 | const char *property, | |
264 | sd_bus_message *reply, | |
265 | void *userdata, | |
266 | sd_bus_error *error) { | |
663996b3 | 267 | |
4c89c718 | 268 | _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL; |
60f067b4 | 269 | Unit *u = userdata; |
b012e921 | 270 | int r; |
663996b3 | 271 | |
60f067b4 JS |
272 | assert(bus); |
273 | assert(reply); | |
274 | assert(u); | |
663996b3 | 275 | |
b012e921 MB |
276 | r = bus_unit_validate_load_state(u, &e); |
277 | if (r < 0) | |
278 | return sd_bus_message_append(reply, "(ss)", e.name, e.message); | |
663996b3 | 279 | |
b012e921 | 280 | return sd_bus_message_append(reply, "(ss)", NULL, NULL); |
663996b3 MS |
281 | } |
282 | ||
d9dfd233 MP |
283 | static int bus_verify_manage_units_async_full( |
284 | Unit *u, | |
285 | const char *verb, | |
286 | int capability, | |
287 | const char *polkit_message, | |
8a584da2 | 288 | bool interactive, |
d9dfd233 MP |
289 | sd_bus_message *call, |
290 | sd_bus_error *error) { | |
291 | ||
292 | const char *details[9] = { | |
293 | "unit", u->id, | |
294 | "verb", verb, | |
295 | }; | |
296 | ||
297 | if (polkit_message) { | |
298 | details[4] = "polkit.message"; | |
299 | details[5] = polkit_message; | |
300 | details[6] = "polkit.gettext_domain"; | |
301 | details[7] = GETTEXT_PACKAGE; | |
302 | } | |
303 | ||
8a584da2 MP |
304 | return bus_verify_polkit_async( |
305 | call, | |
306 | capability, | |
307 | "org.freedesktop.systemd1.manage-units", | |
308 | details, | |
309 | interactive, | |
310 | UID_INVALID, | |
311 | &u->manager->polkit_registry, | |
312 | error); | |
d9dfd233 MP |
313 | } |
314 | ||
bb4f798a MB |
315 | static const char *const polkit_message_for_job[_JOB_TYPE_MAX] = { |
316 | [JOB_START] = N_("Authentication is required to start '$(unit)'."), | |
317 | [JOB_STOP] = N_("Authentication is required to stop '$(unit)'."), | |
318 | [JOB_RELOAD] = N_("Authentication is required to reload '$(unit)'."), | |
319 | [JOB_RESTART] = N_("Authentication is required to restart '$(unit)'."), | |
320 | [JOB_TRY_RESTART] = N_("Authentication is required to restart '$(unit)'."), | |
321 | }; | |
322 | ||
e3bff60a MP |
323 | int bus_unit_method_start_generic( |
324 | sd_bus_message *message, | |
325 | Unit *u, | |
326 | JobType job_type, | |
327 | bool reload_if_possible, | |
328 | sd_bus_error *error) { | |
329 | ||
bb4f798a | 330 | const char *smode, *verb; |
60f067b4 | 331 | JobMode mode; |
663996b3 MS |
332 | int r; |
333 | ||
60f067b4 JS |
334 | assert(message); |
335 | assert(u); | |
336 | assert(job_type >= 0 && job_type < _JOB_TYPE_MAX); | |
663996b3 | 337 | |
4c89c718 MP |
338 | r = mac_selinux_unit_access_check( |
339 | u, message, | |
340 | job_type_to_access_method(job_type), | |
341 | error); | |
e3bff60a MP |
342 | if (r < 0) |
343 | return r; | |
344 | ||
60f067b4 JS |
345 | r = sd_bus_message_read(message, "s", &smode); |
346 | if (r < 0) | |
347 | return r; | |
663996b3 | 348 | |
60f067b4 JS |
349 | mode = job_mode_from_string(smode); |
350 | if (mode < 0) | |
351 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode); | |
663996b3 | 352 | |
d9dfd233 | 353 | if (reload_if_possible) |
bb4f798a | 354 | verb = strjoina("reload-or-", job_type_to_string(job_type)); |
d9dfd233 | 355 | else |
bb4f798a | 356 | verb = job_type_to_string(job_type); |
d9dfd233 MP |
357 | |
358 | r = bus_verify_manage_units_async_full( | |
359 | u, | |
360 | verb, | |
361 | CAP_SYS_ADMIN, | |
bb4f798a | 362 | polkit_message_for_job[job_type], |
8a584da2 | 363 | true, |
d9dfd233 MP |
364 | message, |
365 | error); | |
e3bff60a MP |
366 | if (r < 0) |
367 | return r; | |
368 | if (r == 0) | |
369 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
370 | ||
bb4f798a MB |
371 | return bus_unit_queue_job(message, u, job_type, mode, |
372 | reload_if_possible ? BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE : 0, error); | |
60f067b4 | 373 | } |
663996b3 | 374 | |
e3bff60a MP |
375 | static int method_start(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
376 | return bus_unit_method_start_generic(message, userdata, JOB_START, false, error); | |
60f067b4 | 377 | } |
663996b3 | 378 | |
e3bff60a MP |
379 | static int method_stop(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
380 | return bus_unit_method_start_generic(message, userdata, JOB_STOP, false, error); | |
60f067b4 | 381 | } |
663996b3 | 382 | |
e3bff60a MP |
383 | static int method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
384 | return bus_unit_method_start_generic(message, userdata, JOB_RELOAD, false, error); | |
60f067b4 | 385 | } |
663996b3 | 386 | |
e3bff60a MP |
387 | static int method_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
388 | return bus_unit_method_start_generic(message, userdata, JOB_RESTART, false, error); | |
60f067b4 | 389 | } |
663996b3 | 390 | |
e3bff60a MP |
391 | static int method_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
392 | return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, false, error); | |
60f067b4 | 393 | } |
663996b3 | 394 | |
e3bff60a MP |
395 | static int method_reload_or_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
396 | return bus_unit_method_start_generic(message, userdata, JOB_RESTART, true, error); | |
60f067b4 | 397 | } |
663996b3 | 398 | |
e3bff60a MP |
399 | static int method_reload_or_try_restart(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
400 | return bus_unit_method_start_generic(message, userdata, JOB_TRY_RESTART, true, error); | |
60f067b4 | 401 | } |
663996b3 | 402 | |
bb4f798a MB |
403 | int bus_unit_method_enqueue_job(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
404 | BusUnitQueueFlags flags = BUS_UNIT_QUEUE_VERBOSE_REPLY; | |
405 | const char *jtype, *smode; | |
406 | Unit *u = userdata; | |
407 | JobType type; | |
408 | JobMode mode; | |
409 | int r; | |
410 | ||
411 | assert(message); | |
412 | assert(u); | |
413 | ||
414 | r = sd_bus_message_read(message, "ss", &jtype, &smode); | |
415 | if (r < 0) | |
416 | return r; | |
417 | ||
418 | /* Parse the two magic reload types "reload-or-…" manually */ | |
419 | if (streq(jtype, "reload-or-restart")) { | |
420 | type = JOB_RESTART; | |
421 | flags |= BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE; | |
422 | } else if (streq(jtype, "reload-or-try-restart")) { | |
423 | type = JOB_TRY_RESTART; | |
424 | flags |= BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE; | |
425 | } else { | |
426 | /* And the rest generically */ | |
427 | type = job_type_from_string(jtype); | |
428 | if (type < 0) | |
429 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job type %s invalid", jtype); | |
430 | } | |
431 | ||
432 | mode = job_mode_from_string(smode); | |
433 | if (mode < 0) | |
434 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s invalid", smode); | |
435 | ||
436 | r = mac_selinux_unit_access_check( | |
437 | u, message, | |
438 | job_type_to_access_method(type), | |
439 | error); | |
440 | if (r < 0) | |
441 | return r; | |
442 | ||
443 | r = bus_verify_manage_units_async_full( | |
444 | u, | |
445 | jtype, | |
446 | CAP_SYS_ADMIN, | |
447 | polkit_message_for_job[type], | |
448 | true, | |
449 | message, | |
450 | error); | |
451 | if (r < 0) | |
452 | return r; | |
453 | if (r == 0) | |
454 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
455 | ||
456 | return bus_unit_queue_job(message, u, type, mode, flags, error); | |
457 | } | |
458 | ||
e3bff60a | 459 | int bus_unit_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
60f067b4 JS |
460 | Unit *u = userdata; |
461 | const char *swho; | |
462 | int32_t signo; | |
463 | KillWho who; | |
464 | int r; | |
663996b3 | 465 | |
60f067b4 JS |
466 | assert(message); |
467 | assert(u); | |
663996b3 | 468 | |
e3bff60a | 469 | r = mac_selinux_unit_access_check(u, message, "stop", error); |
5eef597e MP |
470 | if (r < 0) |
471 | return r; | |
5eef597e | 472 | |
60f067b4 JS |
473 | r = sd_bus_message_read(message, "si", &swho, &signo); |
474 | if (r < 0) | |
475 | return r; | |
476 | ||
477 | if (isempty(swho)) | |
478 | who = KILL_ALL; | |
479 | else { | |
480 | who = kill_who_from_string(swho); | |
481 | if (who < 0) | |
482 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid who argument %s", swho); | |
663996b3 MS |
483 | } |
484 | ||
aa27b158 | 485 | if (!SIGNAL_VALID(signo)) |
60f067b4 JS |
486 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Signal number out of range."); |
487 | ||
d9dfd233 MP |
488 | r = bus_verify_manage_units_async_full( |
489 | u, | |
490 | "kill", | |
491 | CAP_KILL, | |
6e866b33 | 492 | N_("Authentication is required to send a UNIX signal to the processes of '$(unit)'."), |
8a584da2 | 493 | true, |
d9dfd233 MP |
494 | message, |
495 | error); | |
60f067b4 JS |
496 | if (r < 0) |
497 | return r; | |
e3bff60a MP |
498 | if (r == 0) |
499 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
663996b3 | 500 | |
60f067b4 JS |
501 | r = unit_kill(u, who, signo, error); |
502 | if (r < 0) | |
503 | return r; | |
663996b3 | 504 | |
60f067b4 | 505 | return sd_bus_reply_method_return(message, NULL); |
663996b3 MS |
506 | } |
507 | ||
e3bff60a | 508 | int bus_unit_method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
60f067b4 | 509 | Unit *u = userdata; |
663996b3 | 510 | int r; |
663996b3 | 511 | |
663996b3 | 512 | assert(message); |
60f067b4 | 513 | assert(u); |
663996b3 | 514 | |
e3bff60a | 515 | r = mac_selinux_unit_access_check(u, message, "reload", error); |
5eef597e MP |
516 | if (r < 0) |
517 | return r; | |
5eef597e | 518 | |
d9dfd233 MP |
519 | r = bus_verify_manage_units_async_full( |
520 | u, | |
521 | "reset-failed", | |
522 | CAP_SYS_ADMIN, | |
523 | N_("Authentication is required to reset the \"failed\" state of '$(unit)'."), | |
8a584da2 | 524 | true, |
d9dfd233 MP |
525 | message, |
526 | error); | |
60f067b4 JS |
527 | if (r < 0) |
528 | return r; | |
e3bff60a MP |
529 | if (r == 0) |
530 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
663996b3 | 531 | |
60f067b4 | 532 | unit_reset_failed(u); |
663996b3 | 533 | |
60f067b4 JS |
534 | return sd_bus_reply_method_return(message, NULL); |
535 | } | |
663996b3 | 536 | |
e3bff60a | 537 | int bus_unit_method_set_properties(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
60f067b4 JS |
538 | Unit *u = userdata; |
539 | int runtime, r; | |
663996b3 | 540 | |
60f067b4 JS |
541 | assert(message); |
542 | assert(u); | |
663996b3 | 543 | |
e3bff60a | 544 | r = mac_selinux_unit_access_check(u, message, "start", error); |
5eef597e MP |
545 | if (r < 0) |
546 | return r; | |
5eef597e | 547 | |
60f067b4 JS |
548 | r = sd_bus_message_read(message, "b", &runtime); |
549 | if (r < 0) | |
550 | return r; | |
663996b3 | 551 | |
d9dfd233 MP |
552 | r = bus_verify_manage_units_async_full( |
553 | u, | |
554 | "set-property", | |
555 | CAP_SYS_ADMIN, | |
556 | N_("Authentication is required to set properties on '$(unit)'."), | |
8a584da2 | 557 | true, |
d9dfd233 MP |
558 | message, |
559 | error); | |
60f067b4 JS |
560 | if (r < 0) |
561 | return r; | |
e3bff60a MP |
562 | if (r == 0) |
563 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
663996b3 | 564 | |
60f067b4 JS |
565 | r = bus_unit_set_properties(u, message, runtime ? UNIT_RUNTIME : UNIT_PERSISTENT, true, error); |
566 | if (r < 0) | |
567 | return r; | |
663996b3 | 568 | |
60f067b4 JS |
569 | return sd_bus_reply_method_return(message, NULL); |
570 | } | |
663996b3 | 571 | |
8a584da2 MP |
572 | int bus_unit_method_ref(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
573 | Unit *u = userdata; | |
574 | int r; | |
575 | ||
576 | assert(message); | |
577 | assert(u); | |
578 | ||
579 | r = mac_selinux_unit_access_check(u, message, "start", error); | |
580 | if (r < 0) | |
581 | return r; | |
582 | ||
583 | r = bus_verify_manage_units_async_full( | |
584 | u, | |
585 | "ref", | |
586 | CAP_SYS_ADMIN, | |
587 | NULL, | |
588 | false, | |
589 | message, | |
590 | error); | |
591 | if (r < 0) | |
592 | return r; | |
593 | if (r == 0) | |
594 | return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ | |
595 | ||
596 | r = bus_unit_track_add_sender(u, message); | |
597 | if (r < 0) | |
598 | return r; | |
599 | ||
600 | return sd_bus_reply_method_return(message, NULL); | |
601 | } | |
602 | ||
603 | int bus_unit_method_unref(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
604 | Unit *u = userdata; | |
605 | int r; | |
606 | ||
607 | assert(message); | |
608 | assert(u); | |
609 | ||
610 | r = bus_unit_track_remove_sender(u, message); | |
611 | if (r == -EUNATCH) | |
612 | return sd_bus_error_setf(error, BUS_ERROR_NOT_REFERENCED, "Unit has not been referenced yet."); | |
613 | if (r < 0) | |
614 | return r; | |
615 | ||
616 | return sd_bus_reply_method_return(message, NULL); | |
617 | } | |
618 | ||
6e866b33 MB |
619 | static int property_get_refs( |
620 | sd_bus *bus, | |
621 | const char *path, | |
622 | const char *interface, | |
623 | const char *property, | |
624 | sd_bus_message *reply, | |
625 | void *userdata, | |
626 | sd_bus_error *error) { | |
627 | ||
628 | Unit *u = userdata; | |
629 | const char *i; | |
630 | int r; | |
631 | ||
632 | assert(bus); | |
633 | assert(reply); | |
634 | ||
635 | r = sd_bus_message_open_container(reply, 'a', "s"); | |
636 | if (r < 0) | |
637 | return r; | |
638 | ||
639 | for (i = sd_bus_track_first(u->bus_track); i; i = sd_bus_track_next(u->bus_track)) { | |
640 | int c, k; | |
641 | ||
642 | c = sd_bus_track_count_name(u->bus_track, i); | |
643 | if (c < 0) | |
644 | return c; | |
645 | ||
646 | /* Add the item multiple times if the ref count for each is above 1 */ | |
647 | for (k = 0; k < c; k++) { | |
648 | r = sd_bus_message_append(reply, "s", i); | |
649 | if (r < 0) | |
650 | return r; | |
651 | } | |
652 | } | |
653 | ||
654 | return sd_bus_message_close_container(reply); | |
655 | } | |
656 | ||
60f067b4 JS |
657 | const sd_bus_vtable bus_unit_vtable[] = { |
658 | SD_BUS_VTABLE_START(0), | |
659 | ||
660 | SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Unit, id), SD_BUS_VTABLE_PROPERTY_CONST), | |
b012e921 | 661 | SD_BUS_PROPERTY("Names", "as", property_get_names, offsetof(Unit, names), SD_BUS_VTABLE_PROPERTY_CONST), |
60f067b4 JS |
662 | SD_BUS_PROPERTY("Following", "s", property_get_following, 0, 0), |
663 | SD_BUS_PROPERTY("Requires", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRES]), SD_BUS_VTABLE_PROPERTY_CONST), | |
60f067b4 | 664 | SD_BUS_PROPERTY("Requisite", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE]), SD_BUS_VTABLE_PROPERTY_CONST), |
60f067b4 JS |
665 | SD_BUS_PROPERTY("Wants", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTS]), SD_BUS_VTABLE_PROPERTY_CONST), |
666 | SD_BUS_PROPERTY("BindsTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BINDS_TO]), SD_BUS_VTABLE_PROPERTY_CONST), | |
667 | SD_BUS_PROPERTY("PartOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PART_OF]), SD_BUS_VTABLE_PROPERTY_CONST), | |
668 | SD_BUS_PROPERTY("RequiredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUIRED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
e3bff60a | 669 | SD_BUS_PROPERTY("RequisiteOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_REQUISITE_OF]), SD_BUS_VTABLE_PROPERTY_CONST), |
60f067b4 JS |
670 | SD_BUS_PROPERTY("WantedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_WANTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), |
671 | SD_BUS_PROPERTY("BoundBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BOUND_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
672 | SD_BUS_PROPERTY("ConsistsOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONSISTS_OF]), SD_BUS_VTABLE_PROPERTY_CONST), | |
673 | SD_BUS_PROPERTY("Conflicts", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTS]), SD_BUS_VTABLE_PROPERTY_CONST), | |
674 | SD_BUS_PROPERTY("ConflictedBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_CONFLICTED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
675 | SD_BUS_PROPERTY("Before", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_BEFORE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
676 | SD_BUS_PROPERTY("After", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_AFTER]), SD_BUS_VTABLE_PROPERTY_CONST), | |
677 | SD_BUS_PROPERTY("OnFailure", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_ON_FAILURE]), SD_BUS_VTABLE_PROPERTY_CONST), | |
678 | SD_BUS_PROPERTY("Triggers", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERS]), SD_BUS_VTABLE_PROPERTY_CONST), | |
679 | SD_BUS_PROPERTY("TriggeredBy", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_TRIGGERED_BY]), SD_BUS_VTABLE_PROPERTY_CONST), | |
680 | SD_BUS_PROPERTY("PropagatesReloadTo", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_PROPAGATES_RELOAD_TO]), SD_BUS_VTABLE_PROPERTY_CONST), | |
681 | SD_BUS_PROPERTY("ReloadPropagatedFrom", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_RELOAD_PROPAGATED_FROM]), SD_BUS_VTABLE_PROPERTY_CONST), | |
682 | SD_BUS_PROPERTY("JoinsNamespaceOf", "as", property_get_dependencies, offsetof(Unit, dependencies[UNIT_JOINS_NAMESPACE_OF]), SD_BUS_VTABLE_PROPERTY_CONST), | |
52ad194e | 683 | SD_BUS_PROPERTY("RequiresMountsFor", "as", property_get_requires_mounts_for, offsetof(Unit, requires_mounts_for), SD_BUS_VTABLE_PROPERTY_CONST), |
60f067b4 JS |
684 | SD_BUS_PROPERTY("Documentation", "as", NULL, offsetof(Unit, documentation), SD_BUS_VTABLE_PROPERTY_CONST), |
685 | SD_BUS_PROPERTY("Description", "s", property_get_description, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
686 | SD_BUS_PROPERTY("LoadState", "s", property_get_load_state, offsetof(Unit, load_state), SD_BUS_VTABLE_PROPERTY_CONST), | |
687 | SD_BUS_PROPERTY("ActiveState", "s", property_get_active_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
688 | SD_BUS_PROPERTY("SubState", "s", property_get_sub_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
689 | SD_BUS_PROPERTY("FragmentPath", "s", NULL, offsetof(Unit, fragment_path), SD_BUS_VTABLE_PROPERTY_CONST), | |
690 | SD_BUS_PROPERTY("SourcePath", "s", NULL, offsetof(Unit, source_path), SD_BUS_VTABLE_PROPERTY_CONST), | |
691 | SD_BUS_PROPERTY("DropInPaths", "as", NULL, offsetof(Unit, dropin_paths), SD_BUS_VTABLE_PROPERTY_CONST), | |
692 | SD_BUS_PROPERTY("UnitFileState", "s", property_get_unit_file_state, 0, 0), | |
f47781d8 | 693 | SD_BUS_PROPERTY("UnitFilePreset", "s", property_get_unit_file_preset, 0, 0), |
4c89c718 | 694 | BUS_PROPERTY_DUAL_TIMESTAMP("StateChangeTimestamp", offsetof(Unit, state_change_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
60f067b4 JS |
695 | BUS_PROPERTY_DUAL_TIMESTAMP("InactiveExitTimestamp", offsetof(Unit, inactive_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
696 | BUS_PROPERTY_DUAL_TIMESTAMP("ActiveEnterTimestamp", offsetof(Unit, active_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
697 | BUS_PROPERTY_DUAL_TIMESTAMP("ActiveExitTimestamp", offsetof(Unit, active_exit_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
698 | BUS_PROPERTY_DUAL_TIMESTAMP("InactiveEnterTimestamp", offsetof(Unit, inactive_enter_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
699 | SD_BUS_PROPERTY("CanStart", "b", property_get_can_start, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
700 | SD_BUS_PROPERTY("CanStop", "b", property_get_can_stop, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
701 | SD_BUS_PROPERTY("CanReload", "b", property_get_can_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
702 | SD_BUS_PROPERTY("CanIsolate", "b", property_get_can_isolate, 0, SD_BUS_VTABLE_PROPERTY_CONST), | |
b012e921 | 703 | SD_BUS_PROPERTY("Job", "(uo)", property_get_job, offsetof(Unit, job), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
60f067b4 JS |
704 | SD_BUS_PROPERTY("StopWhenUnneeded", "b", bus_property_get_bool, offsetof(Unit, stop_when_unneeded), SD_BUS_VTABLE_PROPERTY_CONST), |
705 | SD_BUS_PROPERTY("RefuseManualStart", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_start), SD_BUS_VTABLE_PROPERTY_CONST), | |
706 | SD_BUS_PROPERTY("RefuseManualStop", "b", bus_property_get_bool, offsetof(Unit, refuse_manual_stop), SD_BUS_VTABLE_PROPERTY_CONST), | |
707 | SD_BUS_PROPERTY("AllowIsolate", "b", bus_property_get_bool, offsetof(Unit, allow_isolate), SD_BUS_VTABLE_PROPERTY_CONST), | |
708 | SD_BUS_PROPERTY("DefaultDependencies", "b", bus_property_get_bool, offsetof(Unit, default_dependencies), SD_BUS_VTABLE_PROPERTY_CONST), | |
709 | SD_BUS_PROPERTY("OnFailureJobMode", "s", property_get_job_mode, offsetof(Unit, on_failure_job_mode), SD_BUS_VTABLE_PROPERTY_CONST), | |
710 | SD_BUS_PROPERTY("IgnoreOnIsolate", "b", bus_property_get_bool, offsetof(Unit, ignore_on_isolate), SD_BUS_VTABLE_PROPERTY_CONST), | |
60f067b4 JS |
711 | SD_BUS_PROPERTY("NeedDaemonReload", "b", property_get_need_daemon_reload, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
712 | SD_BUS_PROPERTY("JobTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_timeout), SD_BUS_VTABLE_PROPERTY_CONST), | |
81c58355 | 713 | SD_BUS_PROPERTY("JobRunningTimeoutUSec", "t", bus_property_get_usec, offsetof(Unit, job_running_timeout), SD_BUS_VTABLE_PROPERTY_CONST), |
8a584da2 | 714 | SD_BUS_PROPERTY("JobTimeoutAction", "s", property_get_emergency_action, offsetof(Unit, job_timeout_action), SD_BUS_VTABLE_PROPERTY_CONST), |
5eef597e | 715 | SD_BUS_PROPERTY("JobTimeoutRebootArgument", "s", NULL, offsetof(Unit, job_timeout_reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST), |
60f067b4 | 716 | SD_BUS_PROPERTY("ConditionResult", "b", bus_property_get_bool, offsetof(Unit, condition_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
f47781d8 | 717 | SD_BUS_PROPERTY("AssertResult", "b", bus_property_get_bool, offsetof(Unit, assert_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
60f067b4 | 718 | BUS_PROPERTY_DUAL_TIMESTAMP("ConditionTimestamp", offsetof(Unit, condition_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
f47781d8 | 719 | BUS_PROPERTY_DUAL_TIMESTAMP("AssertTimestamp", offsetof(Unit, assert_timestamp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
6e866b33 MB |
720 | SD_BUS_PROPERTY("Conditions", "a(sbbsi)", property_get_conditions, offsetof(Unit, conditions), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION), |
721 | SD_BUS_PROPERTY("Asserts", "a(sbbsi)", property_get_conditions, offsetof(Unit, asserts), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION), | |
60f067b4 JS |
722 | SD_BUS_PROPERTY("LoadError", "(ss)", property_get_load_error, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
723 | SD_BUS_PROPERTY("Transient", "b", bus_property_get_bool, offsetof(Unit, transient), SD_BUS_VTABLE_PROPERTY_CONST), | |
8a584da2 | 724 | SD_BUS_PROPERTY("Perpetual", "b", bus_property_get_bool, offsetof(Unit, perpetual), SD_BUS_VTABLE_PROPERTY_CONST), |
1d42b86d | 725 | SD_BUS_PROPERTY("StartLimitIntervalUSec", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST), |
4c89c718 | 726 | SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned, offsetof(Unit, start_limit.burst), SD_BUS_VTABLE_PROPERTY_CONST), |
8a584da2 | 727 | SD_BUS_PROPERTY("StartLimitAction", "s", property_get_emergency_action, offsetof(Unit, start_limit_action), SD_BUS_VTABLE_PROPERTY_CONST), |
52ad194e | 728 | SD_BUS_PROPERTY("FailureAction", "s", property_get_emergency_action, offsetof(Unit, failure_action), SD_BUS_VTABLE_PROPERTY_CONST), |
6e866b33 | 729 | SD_BUS_PROPERTY("FailureActionExitStatus", "i", bus_property_get_int, offsetof(Unit, failure_action_exit_status), SD_BUS_VTABLE_PROPERTY_CONST), |
52ad194e | 730 | SD_BUS_PROPERTY("SuccessAction", "s", property_get_emergency_action, offsetof(Unit, success_action), SD_BUS_VTABLE_PROPERTY_CONST), |
6e866b33 | 731 | SD_BUS_PROPERTY("SuccessActionExitStatus", "i", bus_property_get_int, offsetof(Unit, success_action_exit_status), SD_BUS_VTABLE_PROPERTY_CONST), |
4c89c718 | 732 | SD_BUS_PROPERTY("RebootArgument", "s", NULL, offsetof(Unit, reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST), |
6e866b33 MB |
733 | SD_BUS_PROPERTY("InvocationID", "ay", bus_property_get_id128, offsetof(Unit, invocation_id), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
734 | SD_BUS_PROPERTY("CollectMode", "s", property_get_collect_mode, offsetof(Unit, collect_mode), SD_BUS_VTABLE_PROPERTY_CONST), | |
735 | SD_BUS_PROPERTY("Refs", "as", property_get_refs, 0, 0), | |
60f067b4 | 736 | |
e3bff60a MP |
737 | SD_BUS_METHOD("Start", "s", "o", method_start, SD_BUS_VTABLE_UNPRIVILEGED), |
738 | SD_BUS_METHOD("Stop", "s", "o", method_stop, SD_BUS_VTABLE_UNPRIVILEGED), | |
739 | SD_BUS_METHOD("Reload", "s", "o", method_reload, SD_BUS_VTABLE_UNPRIVILEGED), | |
740 | SD_BUS_METHOD("Restart", "s", "o", method_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
741 | SD_BUS_METHOD("TryRestart", "s", "o", method_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
742 | SD_BUS_METHOD("ReloadOrRestart", "s", "o", method_reload_or_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
743 | SD_BUS_METHOD("ReloadOrTryRestart", "s", "o", method_reload_or_try_restart, SD_BUS_VTABLE_UNPRIVILEGED), | |
bb4f798a | 744 | SD_BUS_METHOD("EnqueueJob", "ss", "uososa(uosos)", bus_unit_method_enqueue_job, SD_BUS_VTABLE_UNPRIVILEGED), |
e3bff60a MP |
745 | SD_BUS_METHOD("Kill", "si", NULL, bus_unit_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), |
746 | SD_BUS_METHOD("ResetFailed", NULL, NULL, bus_unit_method_reset_failed, SD_BUS_VTABLE_UNPRIVILEGED), | |
747 | SD_BUS_METHOD("SetProperties", "ba(sv)", NULL, bus_unit_method_set_properties, SD_BUS_VTABLE_UNPRIVILEGED), | |
8a584da2 MP |
748 | SD_BUS_METHOD("Ref", NULL, NULL, bus_unit_method_ref, SD_BUS_VTABLE_UNPRIVILEGED), |
749 | SD_BUS_METHOD("Unref", NULL, NULL, bus_unit_method_unref, SD_BUS_VTABLE_UNPRIVILEGED), | |
60f067b4 | 750 | |
b012e921 MB |
751 | /* For dependency types we don't support anymore always return an empty array */ |
752 | SD_BUS_PROPERTY("RequiresOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN), | |
753 | SD_BUS_PROPERTY("RequisiteOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN), | |
754 | SD_BUS_PROPERTY("RequiredByOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN), | |
755 | SD_BUS_PROPERTY("RequisiteOfOverridable", "as", property_get_empty_strv, 0, SD_BUS_VTABLE_HIDDEN), | |
756 | /* Obsolete alias names */ | |
8a584da2 | 757 | SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), |
1d42b86d | 758 | SD_BUS_PROPERTY("StartLimitIntervalSec", "t", bus_property_get_usec, offsetof(Unit, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), |
60f067b4 JS |
759 | SD_BUS_VTABLE_END |
760 | }; | |
663996b3 | 761 | |
60f067b4 JS |
762 | static int property_get_slice( |
763 | sd_bus *bus, | |
764 | const char *path, | |
765 | const char *interface, | |
766 | const char *property, | |
767 | sd_bus_message *reply, | |
768 | void *userdata, | |
769 | sd_bus_error *error) { | |
663996b3 | 770 | |
60f067b4 | 771 | Unit *u = userdata; |
663996b3 | 772 | |
60f067b4 JS |
773 | assert(bus); |
774 | assert(reply); | |
775 | assert(u); | |
663996b3 | 776 | |
60f067b4 JS |
777 | return sd_bus_message_append(reply, "s", unit_slice_name(u)); |
778 | } | |
663996b3 | 779 | |
e735f4d4 MP |
780 | static int property_get_current_memory( |
781 | sd_bus *bus, | |
782 | const char *path, | |
783 | const char *interface, | |
784 | const char *property, | |
785 | sd_bus_message *reply, | |
786 | void *userdata, | |
787 | sd_bus_error *error) { | |
788 | ||
e735f4d4 | 789 | uint64_t sz = (uint64_t) -1; |
e3bff60a | 790 | Unit *u = userdata; |
e735f4d4 MP |
791 | int r; |
792 | ||
793 | assert(bus); | |
794 | assert(reply); | |
795 | assert(u); | |
796 | ||
e3bff60a MP |
797 | r = unit_get_memory_current(u, &sz); |
798 | if (r < 0 && r != -ENODATA) | |
799 | log_unit_warning_errno(u, r, "Failed to get memory.usage_in_bytes attribute: %m"); | |
e735f4d4 | 800 | |
e3bff60a MP |
801 | return sd_bus_message_append(reply, "t", sz); |
802 | } | |
e735f4d4 | 803 | |
6300502b MP |
804 | static int property_get_current_tasks( |
805 | sd_bus *bus, | |
806 | const char *path, | |
807 | const char *interface, | |
808 | const char *property, | |
809 | sd_bus_message *reply, | |
810 | void *userdata, | |
811 | sd_bus_error *error) { | |
812 | ||
813 | uint64_t cn = (uint64_t) -1; | |
814 | Unit *u = userdata; | |
815 | int r; | |
816 | ||
817 | assert(bus); | |
818 | assert(reply); | |
819 | assert(u); | |
820 | ||
821 | r = unit_get_tasks_current(u, &cn); | |
822 | if (r < 0 && r != -ENODATA) | |
823 | log_unit_warning_errno(u, r, "Failed to get pids.current attribute: %m"); | |
824 | ||
825 | return sd_bus_message_append(reply, "t", cn); | |
826 | } | |
827 | ||
e3bff60a MP |
828 | static int property_get_cpu_usage( |
829 | sd_bus *bus, | |
830 | const char *path, | |
831 | const char *interface, | |
832 | const char *property, | |
833 | sd_bus_message *reply, | |
834 | void *userdata, | |
835 | sd_bus_error *error) { | |
e735f4d4 | 836 | |
e3bff60a MP |
837 | nsec_t ns = (nsec_t) -1; |
838 | Unit *u = userdata; | |
839 | int r; | |
840 | ||
841 | assert(bus); | |
842 | assert(reply); | |
843 | assert(u); | |
844 | ||
845 | r = unit_get_cpu_usage(u, &ns); | |
846 | if (r < 0 && r != -ENODATA) | |
847 | log_unit_warning_errno(u, r, "Failed to get cpuacct.usage attribute: %m"); | |
848 | ||
849 | return sd_bus_message_append(reply, "t", ns); | |
e735f4d4 MP |
850 | } |
851 | ||
13d276d0 MP |
852 | static int property_get_cgroup( |
853 | sd_bus *bus, | |
854 | const char *path, | |
855 | const char *interface, | |
856 | const char *property, | |
857 | sd_bus_message *reply, | |
858 | void *userdata, | |
859 | sd_bus_error *error) { | |
860 | ||
861 | Unit *u = userdata; | |
b012e921 | 862 | const char *t = NULL; |
13d276d0 MP |
863 | |
864 | assert(bus); | |
865 | assert(reply); | |
866 | assert(u); | |
867 | ||
868 | /* Three cases: a) u->cgroup_path is NULL, in which case the | |
869 | * unit has no control group, which we report as the empty | |
870 | * string. b) u->cgroup_path is the empty string, which | |
871 | * indicates the root cgroup, which we report as "/". c) all | |
872 | * other cases we report as-is. */ | |
873 | ||
874 | if (u->cgroup_path) | |
b012e921 | 875 | t = empty_to_root(u->cgroup_path); |
13d276d0 MP |
876 | |
877 | return sd_bus_message_append(reply, "s", t); | |
878 | } | |
879 | ||
aa27b158 MP |
880 | static int append_process(sd_bus_message *reply, const char *p, pid_t pid, Set *pids) { |
881 | _cleanup_free_ char *buf = NULL, *cmdline = NULL; | |
882 | int r; | |
883 | ||
884 | assert(reply); | |
885 | assert(pid > 0); | |
886 | ||
887 | r = set_put(pids, PID_TO_PTR(pid)); | |
f5e65279 | 888 | if (IN_SET(r, 0, -EEXIST)) |
aa27b158 MP |
889 | return 0; |
890 | if (r < 0) | |
891 | return r; | |
892 | ||
893 | if (!p) { | |
894 | r = cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, pid, &buf); | |
895 | if (r == -ESRCH) | |
896 | return 0; | |
897 | if (r < 0) | |
898 | return r; | |
899 | ||
900 | p = buf; | |
901 | } | |
902 | ||
903 | (void) get_process_cmdline(pid, 0, true, &cmdline); | |
904 | ||
905 | return sd_bus_message_append(reply, | |
906 | "(sus)", | |
907 | p, | |
908 | (uint32_t) pid, | |
909 | cmdline); | |
910 | } | |
911 | ||
912 | static int append_cgroup(sd_bus_message *reply, const char *p, Set *pids) { | |
913 | _cleanup_closedir_ DIR *d = NULL; | |
914 | _cleanup_fclose_ FILE *f = NULL; | |
915 | int r; | |
916 | ||
917 | assert(reply); | |
918 | assert(p); | |
919 | ||
920 | r = cg_enumerate_processes(SYSTEMD_CGROUP_CONTROLLER, p, &f); | |
b012e921 | 921 | if (r == -ENOENT) |
aa27b158 MP |
922 | return 0; |
923 | if (r < 0) | |
924 | return r; | |
925 | ||
926 | for (;;) { | |
927 | pid_t pid; | |
928 | ||
929 | r = cg_read_pid(f, &pid); | |
930 | if (r < 0) | |
931 | return r; | |
932 | if (r == 0) | |
933 | break; | |
934 | ||
935 | if (is_kernel_thread(pid) > 0) | |
936 | continue; | |
937 | ||
938 | r = append_process(reply, p, pid, pids); | |
939 | if (r < 0) | |
940 | return r; | |
941 | } | |
942 | ||
943 | r = cg_enumerate_subgroups(SYSTEMD_CGROUP_CONTROLLER, p, &d); | |
944 | if (r == -ENOENT) | |
945 | return 0; | |
946 | if (r < 0) | |
947 | return r; | |
948 | ||
949 | for (;;) { | |
950 | _cleanup_free_ char *g = NULL, *j = NULL; | |
951 | ||
952 | r = cg_read_subgroup(d, &g); | |
953 | if (r < 0) | |
954 | return r; | |
955 | if (r == 0) | |
956 | break; | |
957 | ||
2897b343 | 958 | j = strjoin(p, "/", g); |
aa27b158 MP |
959 | if (!j) |
960 | return -ENOMEM; | |
961 | ||
962 | r = append_cgroup(reply, j, pids); | |
963 | if (r < 0) | |
964 | return r; | |
965 | } | |
966 | ||
967 | return 0; | |
968 | } | |
969 | ||
970 | int bus_unit_method_get_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
971 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
b012e921 | 972 | _cleanup_set_free_ Set *pids = NULL; |
aa27b158 MP |
973 | Unit *u = userdata; |
974 | pid_t pid; | |
975 | int r; | |
976 | ||
977 | assert(message); | |
978 | ||
2897b343 MP |
979 | r = mac_selinux_unit_access_check(u, message, "status", error); |
980 | if (r < 0) | |
981 | return r; | |
982 | ||
aa27b158 MP |
983 | pids = set_new(NULL); |
984 | if (!pids) | |
985 | return -ENOMEM; | |
986 | ||
987 | r = sd_bus_message_new_method_return(message, &reply); | |
988 | if (r < 0) | |
989 | return r; | |
990 | ||
991 | r = sd_bus_message_open_container(reply, 'a', "(sus)"); | |
992 | if (r < 0) | |
993 | return r; | |
994 | ||
995 | if (u->cgroup_path) { | |
996 | r = append_cgroup(reply, u->cgroup_path, pids); | |
997 | if (r < 0) | |
998 | return r; | |
999 | } | |
1000 | ||
1001 | /* The main and control pids might live outside of the cgroup, hence fetch them separately */ | |
1002 | pid = unit_main_pid(u); | |
1003 | if (pid > 0) { | |
1004 | r = append_process(reply, NULL, pid, pids); | |
1005 | if (r < 0) | |
1006 | return r; | |
1007 | } | |
1008 | ||
1009 | pid = unit_control_pid(u); | |
1010 | if (pid > 0) { | |
1011 | r = append_process(reply, NULL, pid, pids); | |
1012 | if (r < 0) | |
1013 | return r; | |
1014 | } | |
1015 | ||
1016 | r = sd_bus_message_close_container(reply); | |
1017 | if (r < 0) | |
1018 | return r; | |
1019 | ||
1020 | return sd_bus_send(NULL, reply, NULL); | |
1021 | } | |
1022 | ||
f5e65279 MB |
1023 | static int property_get_ip_counter( |
1024 | sd_bus *bus, | |
1025 | const char *path, | |
1026 | const char *interface, | |
1027 | const char *property, | |
1028 | sd_bus_message *reply, | |
1029 | void *userdata, | |
1030 | sd_bus_error *error) { | |
1031 | ||
1032 | CGroupIPAccountingMetric metric; | |
1033 | uint64_t value = (uint64_t) -1; | |
1034 | Unit *u = userdata; | |
1035 | ||
1036 | assert(bus); | |
1037 | assert(reply); | |
1038 | assert(property); | |
1039 | assert(u); | |
1040 | ||
1041 | if (streq(property, "IPIngressBytes")) | |
1042 | metric = CGROUP_IP_INGRESS_BYTES; | |
1043 | else if (streq(property, "IPIngressPackets")) | |
1044 | metric = CGROUP_IP_INGRESS_PACKETS; | |
1045 | else if (streq(property, "IPEgressBytes")) | |
1046 | metric = CGROUP_IP_EGRESS_BYTES; | |
1047 | else { | |
1048 | assert(streq(property, "IPEgressPackets")); | |
1049 | metric = CGROUP_IP_EGRESS_PACKETS; | |
1050 | } | |
1051 | ||
1052 | (void) unit_get_ip_accounting(u, metric, &value); | |
1053 | return sd_bus_message_append(reply, "t", value); | |
1054 | } | |
1055 | ||
98393f85 MB |
1056 | int bus_unit_method_attach_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
1057 | ||
1058 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; | |
b012e921 | 1059 | _cleanup_set_free_ Set *pids = NULL; |
98393f85 MB |
1060 | Unit *u = userdata; |
1061 | const char *path; | |
1062 | int r; | |
1063 | ||
1064 | assert(message); | |
1065 | ||
1066 | /* This migrates the processes with the specified PIDs into the cgroup of this unit, optionally below a | |
1067 | * specified cgroup path. Obviously this only works for units that actually maintain a cgroup | |
1068 | * representation. If a process is already in the cgroup no operation is executed – in this case the specified | |
1069 | * subcgroup path has no effect! */ | |
1070 | ||
1071 | r = mac_selinux_unit_access_check(u, message, "start", error); | |
1072 | if (r < 0) | |
1073 | return r; | |
1074 | ||
1075 | r = sd_bus_message_read(message, "s", &path); | |
1076 | if (r < 0) | |
1077 | return r; | |
1078 | ||
1079 | path = empty_to_null(path); | |
1080 | if (path) { | |
1081 | if (!path_is_absolute(path)) | |
1082 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Control group path is not absolute: %s", path); | |
1083 | ||
1084 | if (!path_is_normalized(path)) | |
1085 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Control group path is not normalized: %s", path); | |
1086 | } | |
1087 | ||
1088 | if (!unit_cgroup_delegate(u)) | |
1089 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Process migration not available on non-delegated units."); | |
1090 | ||
1091 | if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u))) | |
1092 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit is not active, refusing."); | |
1093 | ||
1094 | r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID, &creds); | |
1095 | if (r < 0) | |
1096 | return r; | |
1097 | ||
1098 | r = sd_bus_message_enter_container(message, 'a', "u"); | |
1099 | if (r < 0) | |
1100 | return r; | |
1101 | for (;;) { | |
1102 | uid_t process_uid, sender_uid; | |
1103 | uint32_t upid; | |
1104 | pid_t pid; | |
1105 | ||
1106 | r = sd_bus_message_read(message, "u", &upid); | |
1107 | if (r < 0) | |
1108 | return r; | |
1109 | if (r == 0) | |
1110 | break; | |
1111 | ||
1112 | if (upid == 0) { | |
1113 | r = sd_bus_creds_get_pid(creds, &pid); | |
1114 | if (r < 0) | |
1115 | return r; | |
1116 | } else | |
1117 | pid = (uid_t) upid; | |
1118 | ||
1119 | /* Filter out duplicates */ | |
1120 | if (set_contains(pids, PID_TO_PTR(pid))) | |
1121 | continue; | |
1122 | ||
1123 | /* Check if this process is suitable for attaching to this unit */ | |
1124 | r = unit_pid_attachable(u, pid, error); | |
1125 | if (r < 0) | |
1126 | return r; | |
1127 | ||
1128 | /* Let's query the sender's UID, so that we can make our security decisions */ | |
1129 | r = sd_bus_creds_get_euid(creds, &sender_uid); | |
1130 | if (r < 0) | |
1131 | return r; | |
1132 | ||
6e866b33 | 1133 | /* Let's validate security: if the sender is root, then all is OK. If the sender is any other unit, |
98393f85 MB |
1134 | * then the process' UID and the target unit's UID have to match the sender's UID */ |
1135 | if (sender_uid != 0 && sender_uid != getuid()) { | |
1136 | r = get_process_uid(pid, &process_uid); | |
1137 | if (r < 0) | |
1138 | return sd_bus_error_set_errnof(error, r, "Failed to retrieve process UID: %m"); | |
1139 | ||
1140 | if (process_uid != sender_uid) | |
1141 | return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Process " PID_FMT " not owned by client's UID. Refusing.", pid); | |
1142 | if (process_uid != u->ref_uid) | |
1143 | return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Process " PID_FMT " not owned by target unit's UID. Refusing.", pid); | |
1144 | } | |
1145 | ||
1146 | if (!pids) { | |
1147 | pids = set_new(NULL); | |
1148 | if (!pids) | |
1149 | return -ENOMEM; | |
1150 | } | |
1151 | ||
1152 | r = set_put(pids, PID_TO_PTR(pid)); | |
1153 | if (r < 0) | |
1154 | return r; | |
1155 | } | |
1156 | ||
1157 | r = sd_bus_message_exit_container(message); | |
1158 | if (r < 0) | |
1159 | return r; | |
1160 | ||
1161 | r = unit_attach_pids_to_cgroup(u, pids, path); | |
1162 | if (r < 0) | |
1163 | return sd_bus_error_set_errnof(error, r, "Failed to attach processes to control group: %m"); | |
1164 | ||
1165 | return sd_bus_reply_method_return(message, NULL); | |
1166 | } | |
1167 | ||
60f067b4 JS |
1168 | const sd_bus_vtable bus_unit_cgroup_vtable[] = { |
1169 | SD_BUS_VTABLE_START(0), | |
1170 | SD_BUS_PROPERTY("Slice", "s", property_get_slice, 0, 0), | |
13d276d0 | 1171 | SD_BUS_PROPERTY("ControlGroup", "s", property_get_cgroup, 0, 0), |
e735f4d4 | 1172 | SD_BUS_PROPERTY("MemoryCurrent", "t", property_get_current_memory, 0, 0), |
e3bff60a | 1173 | SD_BUS_PROPERTY("CPUUsageNSec", "t", property_get_cpu_usage, 0, 0), |
6300502b | 1174 | SD_BUS_PROPERTY("TasksCurrent", "t", property_get_current_tasks, 0, 0), |
f5e65279 MB |
1175 | SD_BUS_PROPERTY("IPIngressBytes", "t", property_get_ip_counter, 0, 0), |
1176 | SD_BUS_PROPERTY("IPIngressPackets", "t", property_get_ip_counter, 0, 0), | |
1177 | SD_BUS_PROPERTY("IPEgressBytes", "t", property_get_ip_counter, 0, 0), | |
1178 | SD_BUS_PROPERTY("IPEgressPackets", "t", property_get_ip_counter, 0, 0), | |
aa27b158 | 1179 | SD_BUS_METHOD("GetProcesses", NULL, "a(sus)", bus_unit_method_get_processes, SD_BUS_VTABLE_UNPRIVILEGED), |
98393f85 | 1180 | SD_BUS_METHOD("AttachProcesses", "sau", NULL, bus_unit_method_attach_processes, SD_BUS_VTABLE_UNPRIVILEGED), |
60f067b4 JS |
1181 | SD_BUS_VTABLE_END |
1182 | }; | |
663996b3 | 1183 | |
60f067b4 | 1184 | static int send_new_signal(sd_bus *bus, void *userdata) { |
4c89c718 | 1185 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
60f067b4 JS |
1186 | _cleanup_free_ char *p = NULL; |
1187 | Unit *u = userdata; | |
1188 | int r; | |
663996b3 | 1189 | |
60f067b4 JS |
1190 | assert(bus); |
1191 | assert(u); | |
663996b3 | 1192 | |
60f067b4 | 1193 | p = unit_dbus_path(u); |
e3bff60a | 1194 | if (!p) |
60f067b4 | 1195 | return -ENOMEM; |
663996b3 | 1196 | |
60f067b4 JS |
1197 | r = sd_bus_message_new_signal( |
1198 | bus, | |
1199 | &m, | |
1200 | "/org/freedesktop/systemd1", | |
1201 | "org.freedesktop.systemd1.Manager", | |
1202 | "UnitNew"); | |
1203 | if (r < 0) | |
1204 | return r; | |
663996b3 | 1205 | |
60f067b4 JS |
1206 | r = sd_bus_message_append(m, "so", u->id, p); |
1207 | if (r < 0) | |
1208 | return r; | |
663996b3 | 1209 | |
60f067b4 JS |
1210 | return sd_bus_send(bus, m, NULL); |
1211 | } | |
663996b3 | 1212 | |
60f067b4 JS |
1213 | static int send_changed_signal(sd_bus *bus, void *userdata) { |
1214 | _cleanup_free_ char *p = NULL; | |
1215 | Unit *u = userdata; | |
1216 | int r; | |
663996b3 | 1217 | |
60f067b4 JS |
1218 | assert(bus); |
1219 | assert(u); | |
663996b3 | 1220 | |
60f067b4 JS |
1221 | p = unit_dbus_path(u); |
1222 | if (!p) | |
1223 | return -ENOMEM; | |
663996b3 | 1224 | |
60f067b4 JS |
1225 | /* Send a properties changed signal. First for the specific |
1226 | * type, then for the generic unit. The clients may rely on | |
1227 | * this order to get atomic behavior if needed. */ | |
663996b3 | 1228 | |
60f067b4 JS |
1229 | r = sd_bus_emit_properties_changed_strv( |
1230 | bus, p, | |
d9dfd233 | 1231 | unit_dbus_interface_from_type(u->type), |
60f067b4 JS |
1232 | NULL); |
1233 | if (r < 0) | |
1234 | return r; | |
663996b3 | 1235 | |
60f067b4 JS |
1236 | return sd_bus_emit_properties_changed_strv( |
1237 | bus, p, | |
1238 | "org.freedesktop.systemd1.Unit", | |
1239 | NULL); | |
1240 | } | |
663996b3 MS |
1241 | |
1242 | void bus_unit_send_change_signal(Unit *u) { | |
14228c0d | 1243 | int r; |
663996b3 MS |
1244 | assert(u); |
1245 | ||
1246 | if (u->in_dbus_queue) { | |
60f067b4 | 1247 | LIST_REMOVE(dbus_queue, u->manager->dbus_unit_queue, u); |
663996b3 MS |
1248 | u->in_dbus_queue = false; |
1249 | } | |
1250 | ||
1251 | if (!u->id) | |
1252 | return; | |
1253 | ||
2897b343 | 1254 | r = bus_foreach_bus(u->manager, u->bus_track, u->sent_dbus_new_signal ? send_changed_signal : send_new_signal, u); |
60f067b4 | 1255 | if (r < 0) |
e3bff60a | 1256 | log_unit_debug_errno(u, r, "Failed to send unit change signal for %s: %m", u->id); |
663996b3 | 1257 | |
60f067b4 JS |
1258 | u->sent_dbus_new_signal = true; |
1259 | } | |
663996b3 | 1260 | |
6e866b33 MB |
1261 | void bus_unit_send_pending_change_signal(Unit *u, bool including_new) { |
1262 | ||
1263 | /* Sends out any pending change signals, but only if they really are pending. This call is used when we are | |
1264 | * about to change state in order to force out a PropertiesChanged signal beforehand if there was one pending | |
1265 | * so that clients can follow the full state transition */ | |
1266 | ||
1267 | if (!u->in_dbus_queue) /* If not enqueued, don't bother */ | |
1268 | return; | |
1269 | ||
1270 | if (!u->sent_dbus_new_signal && !including_new) /* If the unit was never announced, don't bother, it's fine if | |
1271 | * the unit appears in the new state right-away (except if the | |
1272 | * caller explicitly asked us to send it anyway) */ | |
1273 | return; | |
1274 | ||
1275 | if (MANAGER_IS_RELOADING(u->manager)) /* Don't generate unnecessary PropertiesChanged signals for the same unit | |
1276 | * when we are reloading. */ | |
1277 | return; | |
1278 | ||
1279 | bus_unit_send_change_signal(u); | |
1280 | } | |
1281 | ||
60f067b4 | 1282 | static int send_removed_signal(sd_bus *bus, void *userdata) { |
4c89c718 | 1283 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
60f067b4 JS |
1284 | _cleanup_free_ char *p = NULL; |
1285 | Unit *u = userdata; | |
1286 | int r; | |
663996b3 | 1287 | |
60f067b4 JS |
1288 | assert(bus); |
1289 | assert(u); | |
663996b3 | 1290 | |
60f067b4 | 1291 | p = unit_dbus_path(u); |
e3bff60a | 1292 | if (!p) |
60f067b4 | 1293 | return -ENOMEM; |
663996b3 | 1294 | |
60f067b4 JS |
1295 | r = sd_bus_message_new_signal( |
1296 | bus, | |
1297 | &m, | |
1298 | "/org/freedesktop/systemd1", | |
1299 | "org.freedesktop.systemd1.Manager", | |
1300 | "UnitRemoved"); | |
1301 | if (r < 0) | |
1302 | return r; | |
663996b3 | 1303 | |
60f067b4 JS |
1304 | r = sd_bus_message_append(m, "so", u->id, p); |
1305 | if (r < 0) | |
1306 | return r; | |
663996b3 | 1307 | |
60f067b4 | 1308 | return sd_bus_send(bus, m, NULL); |
663996b3 MS |
1309 | } |
1310 | ||
1311 | void bus_unit_send_removed_signal(Unit *u) { | |
60f067b4 | 1312 | int r; |
663996b3 MS |
1313 | assert(u); |
1314 | ||
8a584da2 | 1315 | if (!u->sent_dbus_new_signal || u->in_dbus_queue) |
663996b3 MS |
1316 | bus_unit_send_change_signal(u); |
1317 | ||
1318 | if (!u->id) | |
1319 | return; | |
1320 | ||
2897b343 | 1321 | r = bus_foreach_bus(u->manager, u->bus_track, send_removed_signal, u); |
60f067b4 | 1322 | if (r < 0) |
e3bff60a | 1323 | log_unit_debug_errno(u, r, "Failed to send unit remove signal for %s: %m", u->id); |
663996b3 MS |
1324 | } |
1325 | ||
60f067b4 | 1326 | int bus_unit_queue_job( |
60f067b4 | 1327 | sd_bus_message *message, |
663996b3 MS |
1328 | Unit *u, |
1329 | JobType type, | |
1330 | JobMode mode, | |
bb4f798a | 1331 | BusUnitQueueFlags flags, |
60f067b4 | 1332 | sd_bus_error *error) { |
663996b3 | 1333 | |
bb4f798a MB |
1334 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
1335 | _cleanup_free_ char *job_path = NULL, *unit_path = NULL; | |
1336 | _cleanup_(set_freep) Set *affected = NULL; | |
1337 | Iterator i; | |
1338 | Job *j, *a; | |
663996b3 MS |
1339 | int r; |
1340 | ||
663996b3 MS |
1341 | assert(message); |
1342 | assert(u); | |
1343 | assert(type >= 0 && type < _JOB_TYPE_MAX); | |
1344 | assert(mode >= 0 && mode < _JOB_MODE_MAX); | |
1345 | ||
4c89c718 MP |
1346 | r = mac_selinux_unit_access_check( |
1347 | u, message, | |
1348 | job_type_to_access_method(type), | |
1349 | error); | |
1350 | if (r < 0) | |
1351 | return r; | |
1352 | ||
bb4f798a | 1353 | if (FLAGS_SET(flags, BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE) && unit_can_reload(u)) { |
663996b3 MS |
1354 | if (type == JOB_RESTART) |
1355 | type = JOB_RELOAD_OR_START; | |
1356 | else if (type == JOB_TRY_RESTART) | |
4c89c718 | 1357 | type = JOB_TRY_RELOAD; |
663996b3 MS |
1358 | } |
1359 | ||
60f067b4 | 1360 | if (type == JOB_STOP && |
b012e921 | 1361 | IN_SET(u->load_state, UNIT_NOT_FOUND, UNIT_ERROR, UNIT_BAD_SETTING) && |
60f067b4 JS |
1362 | unit_active_state(u) == UNIT_INACTIVE) |
1363 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", u->id); | |
663996b3 MS |
1364 | |
1365 | if ((type == JOB_START && u->refuse_manual_start) || | |
1366 | (type == JOB_STOP && u->refuse_manual_stop) || | |
f5e65279 | 1367 | (IN_SET(type, JOB_RESTART, JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop)) || |
db2df898 | 1368 | (type == JOB_RELOAD_OR_START && job_type_collapse(type, u) == JOB_START && u->refuse_manual_start)) |
2897b343 | 1369 | return sd_bus_error_setf(error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only (it is configured to refuse manual start/stop).", u->id); |
663996b3 | 1370 | |
bb4f798a MB |
1371 | if (FLAGS_SET(flags, BUS_UNIT_QUEUE_VERBOSE_REPLY)) { |
1372 | affected = set_new(NULL); | |
1373 | if (!affected) | |
1374 | return -ENOMEM; | |
1375 | } | |
1376 | ||
1377 | r = manager_add_job(u->manager, type, u, mode, affected, error, &j); | |
663996b3 | 1378 | if (r < 0) |
60f067b4 | 1379 | return r; |
663996b3 | 1380 | |
2897b343 MP |
1381 | r = bus_job_track_sender(j, message); |
1382 | if (r < 0) | |
1383 | return r; | |
663996b3 | 1384 | |
6e866b33 MB |
1385 | /* Before we send the method reply, force out the announcement JobNew for this job */ |
1386 | bus_job_send_pending_change_signal(j, true); | |
1387 | ||
bb4f798a MB |
1388 | job_path = job_dbus_path(j); |
1389 | if (!job_path) | |
1390 | return -ENOMEM; | |
1391 | ||
1392 | /* The classic response is just a job object path */ | |
1393 | if (!FLAGS_SET(flags, BUS_UNIT_QUEUE_VERBOSE_REPLY)) | |
1394 | return sd_bus_reply_method_return(message, "o", job_path); | |
1395 | ||
1396 | /* In verbose mode respond with the anchor job plus everything that has been affected */ | |
1397 | r = sd_bus_message_new_method_return(message, &reply); | |
1398 | if (r < 0) | |
1399 | return r; | |
1400 | ||
1401 | unit_path = unit_dbus_path(j->unit); | |
1402 | if (!unit_path) | |
1403 | return -ENOMEM; | |
1404 | ||
1405 | r = sd_bus_message_append(reply, "uosos", | |
1406 | j->id, job_path, | |
1407 | j->unit->id, unit_path, | |
1408 | job_type_to_string(j->type)); | |
1409 | if (r < 0) | |
1410 | return r; | |
1411 | ||
1412 | r = sd_bus_message_open_container(reply, 'a', "(uosos)"); | |
1413 | if (r < 0) | |
1414 | return r; | |
1415 | ||
1416 | SET_FOREACH(a, affected, i) { | |
1417 | ||
1418 | if (a->id == j->id) | |
1419 | continue; | |
1420 | ||
1421 | /* Free paths from previous iteration */ | |
1422 | job_path = mfree(job_path); | |
1423 | unit_path = mfree(unit_path); | |
1424 | ||
1425 | job_path = job_dbus_path(a); | |
1426 | if (!job_path) | |
1427 | return -ENOMEM; | |
1428 | ||
1429 | unit_path = unit_dbus_path(a->unit); | |
1430 | if (!unit_path) | |
1431 | return -ENOMEM; | |
1432 | ||
1433 | r = sd_bus_message_append(reply, "(uosos)", | |
1434 | a->id, job_path, | |
1435 | a->unit->id, unit_path, | |
1436 | job_type_to_string(a->type)); | |
1437 | if (r < 0) | |
1438 | return r; | |
1439 | } | |
1440 | ||
1441 | r = sd_bus_message_close_container(reply); | |
1442 | if (r < 0) | |
1443 | return r; | |
1444 | ||
1445 | return sd_bus_send(NULL, reply, NULL); | |
663996b3 MS |
1446 | } |
1447 | ||
52ad194e | 1448 | static int bus_unit_set_live_property( |
14228c0d MB |
1449 | Unit *u, |
1450 | const char *name, | |
60f067b4 | 1451 | sd_bus_message *message, |
52ad194e | 1452 | UnitWriteFlags flags, |
60f067b4 | 1453 | sd_bus_error *error) { |
663996b3 | 1454 | |
663996b3 MS |
1455 | int r; |
1456 | ||
1457 | assert(u); | |
14228c0d | 1458 | assert(name); |
60f067b4 | 1459 | assert(message); |
663996b3 | 1460 | |
52ad194e MB |
1461 | /* Handles setting properties both "live" (i.e. at any time during runtime), and during creation (for transient |
1462 | * units that are being created). */ | |
1463 | ||
14228c0d | 1464 | if (streq(name, "Description")) { |
60f067b4 | 1465 | const char *d; |
663996b3 | 1466 | |
60f067b4 JS |
1467 | r = sd_bus_message_read(message, "s", &d); |
1468 | if (r < 0) | |
1469 | return r; | |
663996b3 | 1470 | |
52ad194e | 1471 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
60f067b4 | 1472 | r = unit_set_description(u, d); |
14228c0d MB |
1473 | if (r < 0) |
1474 | return r; | |
663996b3 | 1475 | |
52ad194e | 1476 | unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "Description=%s", d); |
14228c0d | 1477 | } |
663996b3 | 1478 | |
14228c0d | 1479 | return 1; |
52ad194e | 1480 | } |
e735f4d4 | 1481 | |
52ad194e MB |
1482 | return 0; |
1483 | } | |
1484 | ||
6e866b33 MB |
1485 | static int bus_set_transient_emergency_action( |
1486 | Unit *u, | |
1487 | const char *name, | |
1488 | EmergencyAction *p, | |
1489 | sd_bus_message *message, | |
1490 | UnitWriteFlags flags, | |
1491 | sd_bus_error *error) { | |
1492 | ||
1493 | const char *s; | |
1494 | EmergencyAction v; | |
1495 | int r; | |
1496 | bool system; | |
1497 | ||
1498 | assert(p); | |
1499 | ||
1500 | r = sd_bus_message_read(message, "s", &s); | |
1501 | if (r < 0) | |
1502 | return r; | |
1503 | ||
1504 | system = MANAGER_IS_SYSTEM(u->manager); | |
1505 | r = parse_emergency_action(s, system, &v); | |
7c20daf6 | 1506 | if (r < 0) |
6e866b33 | 1507 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
7c20daf6 | 1508 | r == -EOPNOTSUPP ? "%s setting invalid for manager type: %s" |
6e866b33 MB |
1509 | : "Invalid %s setting: %s", |
1510 | name, s); | |
1511 | ||
1512 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
1513 | *p = v; | |
1514 | unit_write_settingf(u, flags, name, | |
1515 | "%s=%s", name, s); | |
1516 | } | |
1517 | ||
1518 | return 1; | |
1519 | } | |
1520 | ||
1521 | static int bus_set_transient_exit_status( | |
1522 | Unit *u, | |
1523 | const char *name, | |
1524 | int *p, | |
1525 | sd_bus_message *message, | |
1526 | UnitWriteFlags flags, | |
1527 | sd_bus_error *error) { | |
1528 | ||
1529 | int32_t k; | |
1530 | int r; | |
1531 | ||
1532 | assert(p); | |
1533 | ||
1534 | r = sd_bus_message_read(message, "i", &k); | |
1535 | if (r < 0) | |
1536 | return r; | |
1537 | ||
1538 | if (k > 255) | |
1539 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Exit status must be in range 0…255 or negative."); | |
1540 | ||
1541 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
1542 | *p = k < 0 ? -1 : k; | |
1543 | ||
1544 | if (k < 0) | |
1545 | unit_write_settingf(u, flags, name, "%s=", name); | |
1546 | else | |
1547 | unit_write_settingf(u, flags, name, "%s=%i", name, k); | |
1548 | } | |
1549 | ||
1550 | return 1; | |
1551 | } | |
1552 | ||
1d42b86d | 1553 | static BUS_DEFINE_SET_TRANSIENT_PARSE(collect_mode, CollectMode, collect_mode_from_string); |
1d42b86d MB |
1554 | static BUS_DEFINE_SET_TRANSIENT_PARSE(job_mode, JobMode, job_mode_from_string); |
1555 | ||
1556 | static int bus_set_transient_conditions( | |
1557 | Unit *u, | |
1558 | const char *name, | |
1559 | Condition **list, | |
1560 | bool is_condition, | |
1561 | sd_bus_message *message, | |
1562 | UnitWriteFlags flags, | |
1563 | sd_bus_error *error) { | |
1564 | ||
1565 | const char *type_name, *param; | |
1566 | int trigger, negate, r; | |
1567 | bool empty = true; | |
1568 | ||
1569 | assert(list); | |
1570 | ||
1571 | r = sd_bus_message_enter_container(message, 'a', "(sbbs)"); | |
1572 | if (r < 0) | |
1573 | return r; | |
1574 | ||
1575 | while ((r = sd_bus_message_read(message, "(sbbs)", &type_name, &trigger, &negate, ¶m)) > 0) { | |
1576 | ConditionType t; | |
1577 | ||
1578 | t = is_condition ? condition_type_from_string(type_name) : assert_type_from_string(type_name); | |
1579 | if (t < 0) | |
1580 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid condition type: %s", type_name); | |
1581 | ||
1582 | if (t != CONDITION_NULL) { | |
1583 | if (isempty(param)) | |
1584 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Condition parameter in %s is empty", type_name); | |
1585 | ||
1586 | if (condition_takes_path(t) && !path_is_absolute(param)) | |
1587 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path in condition %s is not absolute: %s", type_name, param); | |
1588 | } else | |
1589 | param = NULL; | |
1590 | ||
1591 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
1592 | Condition *c; | |
1593 | ||
1594 | c = condition_new(t, param, trigger, negate); | |
1595 | if (!c) | |
1596 | return -ENOMEM; | |
1597 | ||
1598 | LIST_PREPEND(conditions, *list, c); | |
1599 | ||
1600 | if (t != CONDITION_NULL) | |
1601 | unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, | |
1602 | "%s=%s%s%s", type_name, | |
1603 | trigger ? "|" : "", negate ? "!" : "", param); | |
1604 | else | |
1605 | unit_write_settingf(u, flags, name, | |
1606 | "%s=%s%s", type_name, | |
1607 | trigger ? "|" : "", yes_no(!negate)); | |
1608 | } | |
1609 | ||
1610 | empty = false; | |
1611 | } | |
1612 | if (r < 0) | |
1613 | return r; | |
1614 | ||
1615 | r = sd_bus_message_exit_container(message); | |
1616 | if (r < 0) | |
1617 | return r; | |
1618 | ||
1619 | if (!UNIT_WRITE_FLAGS_NOOP(flags) && empty) { | |
1620 | *list = condition_free_list(*list); | |
1621 | unit_write_settingf(u, flags, name, "%sNull=", is_condition ? "Condition" : "Assert"); | |
1622 | } | |
1623 | ||
1624 | return 1; | |
1625 | } | |
1626 | ||
52ad194e MB |
1627 | static int bus_unit_set_transient_property( |
1628 | Unit *u, | |
1629 | const char *name, | |
1630 | sd_bus_message *message, | |
1631 | UnitWriteFlags flags, | |
1632 | sd_bus_error *error) { | |
1633 | ||
1d42b86d | 1634 | UnitDependency d = _UNIT_DEPENDENCY_INVALID; |
52ad194e MB |
1635 | int r; |
1636 | ||
1637 | assert(u); | |
1638 | assert(name); | |
1639 | assert(message); | |
1640 | ||
1641 | /* Handles settings when transient units are created. This settings cannot be altered anymore after the unit | |
1642 | * has been created. */ | |
1643 | ||
1d42b86d MB |
1644 | if (streq(name, "SourcePath")) |
1645 | return bus_set_transient_path(u, name, &u->source_path, message, flags, error); | |
e735f4d4 | 1646 | |
1d42b86d MB |
1647 | if (streq(name, "StopWhenUnneeded")) |
1648 | return bus_set_transient_bool(u, name, &u->stop_when_unneeded, message, flags, error); | |
e735f4d4 | 1649 | |
1d42b86d MB |
1650 | if (streq(name, "RefuseManualStart")) |
1651 | return bus_set_transient_bool(u, name, &u->refuse_manual_start, message, flags, error); | |
52ad194e | 1652 | |
1d42b86d MB |
1653 | if (streq(name, "RefuseManualStop")) |
1654 | return bus_set_transient_bool(u, name, &u->refuse_manual_stop, message, flags, error); | |
52ad194e | 1655 | |
1d42b86d MB |
1656 | if (streq(name, "AllowIsolate")) |
1657 | return bus_set_transient_bool(u, name, &u->allow_isolate, message, flags, error); | |
52ad194e | 1658 | |
1d42b86d MB |
1659 | if (streq(name, "DefaultDependencies")) |
1660 | return bus_set_transient_bool(u, name, &u->default_dependencies, message, flags, error); | |
1661 | ||
1662 | if (streq(name, "OnFailureJobMode")) | |
1663 | return bus_set_transient_job_mode(u, name, &u->on_failure_job_mode, message, flags, error); | |
1664 | ||
1665 | if (streq(name, "IgnoreOnIsolate")) | |
1666 | return bus_set_transient_bool(u, name, &u->ignore_on_isolate, message, flags, error); | |
1667 | ||
1668 | if (streq(name, "JobTimeoutUSec")) { | |
1669 | r = bus_set_transient_usec_fix_0(u, name, &u->job_timeout, message, flags, error); | |
1670 | if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags) && !u->job_running_timeout_set) | |
1671 | u->job_running_timeout = u->job_timeout; | |
1672 | } | |
1673 | ||
1674 | if (streq(name, "JobRunningTimeoutUSec")) { | |
1675 | r = bus_set_transient_usec_fix_0(u, name, &u->job_running_timeout, message, flags, error); | |
1676 | if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags)) | |
1677 | u->job_running_timeout_set = true; | |
1678 | ||
1679 | return r; | |
1680 | } | |
1681 | ||
1682 | if (streq(name, "JobTimeoutAction")) | |
1683 | return bus_set_transient_emergency_action(u, name, &u->job_timeout_action, message, flags, error); | |
1684 | ||
1685 | if (streq(name, "JobTimeoutRebootArgument")) | |
1686 | return bus_set_transient_string(u, name, &u->job_timeout_reboot_arg, message, flags, error); | |
1687 | ||
1688 | if (streq(name, "StartLimitIntervalUSec")) | |
1689 | return bus_set_transient_usec(u, name, &u->start_limit.interval, message, flags, error); | |
1690 | ||
1691 | if (streq(name, "StartLimitBurst")) | |
1692 | return bus_set_transient_unsigned(u, name, &u->start_limit.burst, message, flags, error); | |
1693 | ||
1694 | if (streq(name, "StartLimitAction")) | |
1695 | return bus_set_transient_emergency_action(u, name, &u->start_limit_action, message, flags, error); | |
1696 | ||
1697 | if (streq(name, "FailureAction")) | |
1698 | return bus_set_transient_emergency_action(u, name, &u->failure_action, message, flags, error); | |
1699 | ||
1700 | if (streq(name, "SuccessAction")) | |
1701 | return bus_set_transient_emergency_action(u, name, &u->success_action, message, flags, error); | |
1702 | ||
6e866b33 MB |
1703 | if (streq(name, "FailureActionExitStatus")) |
1704 | return bus_set_transient_exit_status(u, name, &u->failure_action_exit_status, message, flags, error); | |
1705 | ||
1706 | if (streq(name, "SuccessActionExitStatus")) | |
1707 | return bus_set_transient_exit_status(u, name, &u->success_action_exit_status, message, flags, error); | |
1708 | ||
1d42b86d MB |
1709 | if (streq(name, "RebootArgument")) |
1710 | return bus_set_transient_string(u, name, &u->reboot_arg, message, flags, error); | |
1711 | ||
1712 | if (streq(name, "CollectMode")) | |
1713 | return bus_set_transient_collect_mode(u, name, &u->collect_mode, message, flags, error); | |
1714 | ||
1715 | if (streq(name, "Conditions")) | |
1716 | return bus_set_transient_conditions(u, name, &u->conditions, true, message, flags, error); | |
1717 | ||
1718 | if (streq(name, "Asserts")) | |
1719 | return bus_set_transient_conditions(u, name, &u->asserts, false, message, flags, error); | |
1720 | ||
1721 | if (streq(name, "Documentation")) { | |
1722 | _cleanup_strv_free_ char **l = NULL; | |
1723 | char **p; | |
1724 | ||
1725 | r = sd_bus_message_read_strv(message, &l); | |
52ad194e MB |
1726 | if (r < 0) |
1727 | return r; | |
1728 | ||
1d42b86d MB |
1729 | STRV_FOREACH(p, l) { |
1730 | if (!documentation_url_is_valid(*p)) | |
1731 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid URL in %s: %s", name, *p); | |
1732 | } | |
52ad194e MB |
1733 | |
1734 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { | |
1d42b86d MB |
1735 | if (strv_isempty(l)) { |
1736 | u->documentation = strv_free(u->documentation); | |
1737 | unit_write_settingf(u, flags, name, "%s=", name); | |
1738 | } else { | |
1739 | strv_extend_strv(&u->documentation, l, false); | |
1740 | ||
1741 | STRV_FOREACH(p, l) | |
1742 | unit_write_settingf(u, flags, name, "%s=%s", name, *p); | |
1743 | } | |
e735f4d4 MP |
1744 | } |
1745 | ||
1746 | return 1; | |
663996b3 | 1747 | |
d9dfd233 MP |
1748 | } else if (streq(name, "Slice")) { |
1749 | Unit *slice; | |
14228c0d | 1750 | const char *s; |
663996b3 | 1751 | |
d9dfd233 MP |
1752 | if (!UNIT_HAS_CGROUP_CONTEXT(u)) |
1753 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "The slice property is only available for units with control groups."); | |
1754 | if (u->type == UNIT_SLICE) | |
1755 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Slice may not be set for slice units."); | |
1756 | if (unit_has_name(u, SPECIAL_INIT_SCOPE)) | |
1757 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot set slice for init.scope"); | |
1758 | ||
60f067b4 JS |
1759 | r = sd_bus_message_read(message, "s", &s); |
1760 | if (r < 0) | |
1761 | return r; | |
663996b3 | 1762 | |
d9dfd233 MP |
1763 | if (!unit_name_is_valid(s, UNIT_NAME_PLAIN)) |
1764 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name '%s'", s); | |
663996b3 | 1765 | |
aa27b158 MP |
1766 | /* Note that we do not dispatch the load queue here yet, as we don't want our own transient unit to be |
1767 | * loaded while we are still setting it up. Or in other words, we use manager_load_unit_prepare() | |
1768 | * instead of manager_load_unit() on purpose, here. */ | |
1769 | r = manager_load_unit_prepare(u->manager, s, NULL, error, &slice); | |
d9dfd233 MP |
1770 | if (r < 0) |
1771 | return r; | |
663996b3 | 1772 | |
d9dfd233 MP |
1773 | if (slice->type != UNIT_SLICE) |
1774 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit name '%s' is not a slice", s); | |
1775 | ||
52ad194e | 1776 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
d9dfd233 | 1777 | r = unit_set_slice(u, slice); |
14228c0d MB |
1778 | if (r < 0) |
1779 | return r; | |
663996b3 | 1780 | |
52ad194e | 1781 | unit_write_settingf(u, flags|UNIT_PRIVATE, name, "Slice=%s", s); |
14228c0d | 1782 | } |
663996b3 | 1783 | |
14228c0d | 1784 | return 1; |
d9dfd233 | 1785 | |
1d42b86d MB |
1786 | } else if (streq(name, "RequiresMountsFor")) { |
1787 | _cleanup_strv_free_ char **l = NULL; | |
1788 | char **p; | |
1789 | ||
1790 | r = sd_bus_message_read_strv(message, &l); | |
1791 | if (r < 0) | |
1792 | return r; | |
1793 | ||
1794 | STRV_FOREACH(p, l) { | |
bb4f798a MB |
1795 | path_simplify(*p, true); |
1796 | ||
1d42b86d MB |
1797 | if (!path_is_absolute(*p)) |
1798 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s is not absolute: %s", name, *p); | |
1799 | ||
bb4f798a MB |
1800 | if (!path_is_valid(*p)) |
1801 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s has invalid length: %s", name, *p); | |
1802 | ||
1803 | if (!path_is_normalized(*p)) | |
1804 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path specified in %s is not normalized: %s", name, *p); | |
1805 | ||
1d42b86d MB |
1806 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
1807 | r = unit_require_mounts_for(u, *p, UNIT_DEPENDENCY_FILE); | |
1808 | if (r < 0) | |
1809 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Failed to add required mount \"%s\": %m", *p); | |
14228c0d | 1810 | |
1d42b86d MB |
1811 | unit_write_settingf(u, flags, name, "%s=%s", name, *p); |
1812 | } | |
db2df898 | 1813 | } |
663996b3 | 1814 | |
1d42b86d MB |
1815 | return 1; |
1816 | } | |
1817 | ||
1818 | if (streq(name, "RequiresOverridable")) | |
1819 | d = UNIT_REQUIRES; /* redirect for obsolete unit dependency type */ | |
1820 | else if (streq(name, "RequisiteOverridable")) | |
1821 | d = UNIT_REQUISITE; /* same here */ | |
1822 | else | |
1823 | d = unit_dependency_from_string(name); | |
1824 | ||
1825 | if (d >= 0) { | |
1826 | const char *other; | |
1827 | ||
60f067b4 JS |
1828 | r = sd_bus_message_enter_container(message, 'a', "s"); |
1829 | if (r < 0) | |
1830 | return r; | |
663996b3 | 1831 | |
60f067b4 | 1832 | while ((r = sd_bus_message_read(message, "s", &other)) > 0) { |
e3bff60a | 1833 | if (!unit_name_is_valid(other, UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE)) |
60f067b4 | 1834 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name %s", other); |
663996b3 | 1835 | |
52ad194e | 1836 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
14228c0d | 1837 | _cleanup_free_ char *label = NULL; |
663996b3 | 1838 | |
6e866b33 | 1839 | r = unit_add_dependency_by_name(u, d, other, true, UNIT_DEPENDENCY_FILE); |
14228c0d MB |
1840 | if (r < 0) |
1841 | return r; | |
663996b3 | 1842 | |
2897b343 | 1843 | label = strjoin(name, "-", other); |
14228c0d MB |
1844 | if (!label) |
1845 | return -ENOMEM; | |
663996b3 | 1846 | |
1d42b86d | 1847 | unit_write_settingf(u, flags, label, "%s=%s", unit_dependency_to_string(d), other); |
14228c0d | 1848 | } |
663996b3 | 1849 | |
14228c0d | 1850 | } |
60f067b4 JS |
1851 | if (r < 0) |
1852 | return r; | |
1853 | ||
1854 | r = sd_bus_message_exit_container(message); | |
1855 | if (r < 0) | |
1856 | return r; | |
663996b3 | 1857 | |
14228c0d | 1858 | return 1; |
8a584da2 MP |
1859 | |
1860 | } else if (streq(name, "AddRef")) { | |
1861 | ||
1862 | int b; | |
1863 | ||
1864 | /* Why is this called "AddRef" rather than just "Ref", or "Reference"? There's already a "Ref()" method | |
1865 | * on the Unit interface, and it's probably not a good idea to expose a property and a method on the | |
1866 | * same interface (well, strictly speaking AddRef isn't exposed as full property, we just read it for | |
1867 | * transient units, but still). And "References" and "ReferencedBy" is already used as unit reference | |
1868 | * dependency type, hence let's not confuse things with that. | |
1869 | * | |
1870 | * Note that we don't acually add the reference to the bus track. We do that only after the setup of | |
1871 | * the transient unit is complete, so that setting this property multiple times in the same transient | |
1872 | * unit creation call doesn't count as individual references. */ | |
1873 | ||
1874 | r = sd_bus_message_read(message, "b", &b); | |
1875 | if (r < 0) | |
1876 | return r; | |
1877 | ||
52ad194e | 1878 | if (!UNIT_WRITE_FLAGS_NOOP(flags)) |
8a584da2 MP |
1879 | u->bus_track_add = b; |
1880 | ||
1881 | return 1; | |
663996b3 MS |
1882 | } |
1883 | ||
1884 | return 0; | |
1885 | } | |
1886 | ||
14228c0d MB |
1887 | int bus_unit_set_properties( |
1888 | Unit *u, | |
60f067b4 | 1889 | sd_bus_message *message, |
52ad194e | 1890 | UnitWriteFlags flags, |
14228c0d | 1891 | bool commit, |
60f067b4 | 1892 | sd_bus_error *error) { |
14228c0d MB |
1893 | |
1894 | bool for_real = false; | |
14228c0d | 1895 | unsigned n = 0; |
663996b3 MS |
1896 | int r; |
1897 | ||
1898 | assert(u); | |
60f067b4 | 1899 | assert(message); |
663996b3 | 1900 | |
14228c0d MB |
1901 | /* We iterate through the array twice. First run we just check |
1902 | * if all passed data is valid, second run actually applies | |
1903 | * it. This is to implement transaction-like behaviour without | |
1904 | * actually providing full transactions. */ | |
663996b3 | 1905 | |
60f067b4 JS |
1906 | r = sd_bus_message_enter_container(message, 'a', "(sv)"); |
1907 | if (r < 0) | |
1908 | return r; | |
663996b3 | 1909 | |
14228c0d | 1910 | for (;;) { |
14228c0d | 1911 | const char *name; |
52ad194e | 1912 | UnitWriteFlags f; |
663996b3 | 1913 | |
60f067b4 JS |
1914 | r = sd_bus_message_enter_container(message, 'r', "sv"); |
1915 | if (r < 0) | |
1916 | return r; | |
1917 | if (r == 0) { | |
52ad194e | 1918 | if (for_real || UNIT_WRITE_FLAGS_NOOP(flags)) |
14228c0d | 1919 | break; |
663996b3 | 1920 | |
14228c0d | 1921 | /* Reached EOF. Let's try again, and this time for realz... */ |
60f067b4 JS |
1922 | r = sd_bus_message_rewind(message, false); |
1923 | if (r < 0) | |
1924 | return r; | |
1925 | ||
14228c0d | 1926 | for_real = true; |
663996b3 | 1927 | continue; |
663996b3 | 1928 | } |
663996b3 | 1929 | |
60f067b4 JS |
1930 | r = sd_bus_message_read(message, "s", &name); |
1931 | if (r < 0) | |
1932 | return r; | |
663996b3 | 1933 | |
60f067b4 JS |
1934 | if (!UNIT_VTABLE(u)->bus_set_property) |
1935 | return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Objects of this type do not support setting properties."); | |
663996b3 | 1936 | |
60f067b4 JS |
1937 | r = sd_bus_message_enter_container(message, 'v', NULL); |
1938 | if (r < 0) | |
1939 | return r; | |
663996b3 | 1940 | |
52ad194e MB |
1941 | /* If not for real, then mask out the two target flags */ |
1942 | f = for_real ? flags : (flags & ~(UNIT_RUNTIME|UNIT_PERSISTENT)); | |
1943 | ||
1944 | r = UNIT_VTABLE(u)->bus_set_property(u, name, message, f, error); | |
14228c0d | 1945 | if (r == 0 && u->transient && u->load_state == UNIT_STUB) |
52ad194e MB |
1946 | r = bus_unit_set_transient_property(u, name, message, f, error); |
1947 | if (r == 0) | |
1948 | r = bus_unit_set_live_property(u, name, message, f, error); | |
663996b3 MS |
1949 | if (r < 0) |
1950 | return r; | |
52ad194e | 1951 | |
60f067b4 JS |
1952 | if (r == 0) |
1953 | return sd_bus_error_setf(error, SD_BUS_ERROR_PROPERTY_READ_ONLY, "Cannot set property %s, or unknown property.", name); | |
663996b3 | 1954 | |
60f067b4 JS |
1955 | r = sd_bus_message_exit_container(message); |
1956 | if (r < 0) | |
1957 | return r; | |
1958 | ||
1959 | r = sd_bus_message_exit_container(message); | |
1960 | if (r < 0) | |
1961 | return r; | |
663996b3 | 1962 | |
14228c0d MB |
1963 | n += for_real; |
1964 | } | |
663996b3 | 1965 | |
60f067b4 JS |
1966 | r = sd_bus_message_exit_container(message); |
1967 | if (r < 0) | |
1968 | return r; | |
1969 | ||
14228c0d MB |
1970 | if (commit && n > 0 && UNIT_VTABLE(u)->bus_commit_properties) |
1971 | UNIT_VTABLE(u)->bus_commit_properties(u); | |
663996b3 | 1972 | |
14228c0d | 1973 | return n; |
663996b3 | 1974 | } |
4c89c718 | 1975 | |
b012e921 | 1976 | int bus_unit_validate_load_state(Unit *u, sd_bus_error *error) { |
aa27b158 | 1977 | assert(u); |
4c89c718 | 1978 | |
b012e921 | 1979 | /* Generates a pretty error if a unit isn't properly loaded. */ |
4c89c718 | 1980 | |
b012e921 MB |
1981 | switch (u->load_state) { |
1982 | ||
1983 | case UNIT_LOADED: | |
1984 | return 0; | |
4c89c718 | 1985 | |
b012e921 | 1986 | case UNIT_NOT_FOUND: |
4c89c718 MP |
1987 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not found.", u->id); |
1988 | ||
b012e921 MB |
1989 | case UNIT_BAD_SETTING: |
1990 | return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING, "Unit %s has a bad unit file setting.", u->id); | |
1991 | ||
1992 | case UNIT_ERROR: /* Only show .load_error in UNIT_ERROR state */ | |
6e866b33 | 1993 | return sd_bus_error_set_errnof(error, u->load_error, "Unit %s failed to load properly: %m.", u->id); |
b012e921 MB |
1994 | |
1995 | case UNIT_MASKED: | |
1996 | return sd_bus_error_setf(error, BUS_ERROR_UNIT_MASKED, "Unit %s is masked.", u->id); | |
1997 | ||
1998 | case UNIT_STUB: | |
1999 | case UNIT_MERGED: | |
2000 | default: | |
2001 | return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unexpected load state of unit %s", u->id); | |
2002 | } | |
4c89c718 | 2003 | } |
8a584da2 | 2004 | |
2897b343 | 2005 | static int bus_unit_track_handler(sd_bus_track *t, void *userdata) { |
8a584da2 MP |
2006 | Unit *u = userdata; |
2007 | ||
2008 | assert(t); | |
2009 | assert(u); | |
2010 | ||
2011 | u->bus_track = sd_bus_track_unref(u->bus_track); /* make sure we aren't called again */ | |
2012 | ||
6e866b33 MB |
2013 | /* If the client that tracks us disappeared, then there's reason to believe that the cgroup is empty now too, |
2014 | * let's see */ | |
2015 | unit_add_to_cgroup_empty_queue(u); | |
2016 | ||
2017 | /* Also add the unit to the GC queue, after all if the client left it might be time to GC this unit */ | |
8a584da2 | 2018 | unit_add_to_gc_queue(u); |
6e866b33 | 2019 | |
8a584da2 MP |
2020 | return 0; |
2021 | } | |
2022 | ||
2897b343 | 2023 | static int bus_unit_allocate_bus_track(Unit *u) { |
8a584da2 MP |
2024 | int r; |
2025 | ||
2026 | assert(u); | |
2027 | ||
2028 | if (u->bus_track) | |
2029 | return 0; | |
2030 | ||
2897b343 | 2031 | r = sd_bus_track_new(u->manager->api_bus, &u->bus_track, bus_unit_track_handler, u); |
8a584da2 MP |
2032 | if (r < 0) |
2033 | return r; | |
2034 | ||
2035 | r = sd_bus_track_set_recursive(u->bus_track, true); | |
2036 | if (r < 0) { | |
2037 | u->bus_track = sd_bus_track_unref(u->bus_track); | |
2038 | return r; | |
2039 | } | |
2040 | ||
2041 | return 0; | |
2042 | } | |
2043 | ||
2044 | int bus_unit_track_add_name(Unit *u, const char *name) { | |
2045 | int r; | |
2046 | ||
2047 | assert(u); | |
2048 | ||
2897b343 | 2049 | r = bus_unit_allocate_bus_track(u); |
8a584da2 MP |
2050 | if (r < 0) |
2051 | return r; | |
2052 | ||
2053 | return sd_bus_track_add_name(u->bus_track, name); | |
2054 | } | |
2055 | ||
2056 | int bus_unit_track_add_sender(Unit *u, sd_bus_message *m) { | |
2057 | int r; | |
2058 | ||
2059 | assert(u); | |
2060 | ||
2897b343 | 2061 | r = bus_unit_allocate_bus_track(u); |
8a584da2 MP |
2062 | if (r < 0) |
2063 | return r; | |
2064 | ||
2065 | return sd_bus_track_add_sender(u->bus_track, m); | |
2066 | } | |
2067 | ||
2068 | int bus_unit_track_remove_sender(Unit *u, sd_bus_message *m) { | |
2069 | assert(u); | |
2070 | ||
2071 | /* If we haven't allocated the bus track object yet, then there's definitely no reference taken yet, return an | |
2072 | * error */ | |
2073 | if (!u->bus_track) | |
2074 | return -EUNATCH; | |
2075 | ||
2076 | return sd_bus_track_remove_sender(u->bus_track, m); | |
2077 | } |