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40ca29a1 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
0c842e0a TG |
22 | #include <sys/socket.h> |
23 | ||
4f5dd394 | 24 | #include "sd-bus.h" |
ebd011d9 LP |
25 | #include "sd-daemon.h" |
26 | #include "sd-event.h" | |
d53d9474 LP |
27 | |
28 | #include "bus-error.h" | |
29 | #include "bus-internal.h" | |
30 | #include "bus-label.h" | |
31 | #include "bus-message.h" | |
32 | #include "cgroup-util.h" | |
40ca29a1 | 33 | #include "def.h" |
e9876fc9 | 34 | #include "env-util.h" |
4f5dd394 | 35 | #include "escape.h" |
d53d9474 | 36 | #include "macro.h" |
2bba9a57 | 37 | #include "missing.h" |
d53d9474 | 38 | #include "path-util.h" |
ebd011d9 | 39 | #include "set.h" |
24882e06 | 40 | #include "signal-util.h" |
07630cea | 41 | #include "string-util.h" |
d53d9474 | 42 | #include "strv.h" |
d5cad221 | 43 | #include "unit-name.h" |
08596068 | 44 | #include "utf8.h" |
d53d9474 | 45 | #include "util.h" |
40ca29a1 LP |
46 | #include "bus-util.h" |
47 | ||
19070062 | 48 | static int name_owner_change_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
40ca29a1 LP |
49 | sd_event *e = userdata; |
50 | ||
40ca29a1 LP |
51 | assert(m); |
52 | assert(e); | |
53 | ||
19070062 | 54 | sd_bus_close(sd_bus_message_get_bus(m)); |
6203e07a | 55 | sd_event_exit(e, 0); |
b27adf35 | 56 | |
40ca29a1 LP |
57 | return 1; |
58 | } | |
59 | ||
6203e07a | 60 | int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name) { |
40ca29a1 | 61 | _cleanup_free_ char *match = NULL; |
11846aa7 | 62 | const char *unique; |
40ca29a1 LP |
63 | int r; |
64 | ||
65 | assert(e); | |
66 | assert(bus); | |
67 | assert(name); | |
68 | ||
6203e07a LP |
69 | /* We unregister the name here and then wait for the |
70 | * NameOwnerChanged signal for this event to arrive before we | |
71 | * quit. We do this in order to make sure that any queued | |
72 | * requests are still processed before we really exit. */ | |
73 | ||
11846aa7 | 74 | r = sd_bus_get_unique_name(bus, &unique); |
40ca29a1 LP |
75 | if (r < 0) |
76 | return r; | |
77 | ||
11846aa7 LP |
78 | r = asprintf(&match, |
79 | "sender='org.freedesktop.DBus'," | |
80 | "type='signal'," | |
81 | "interface='org.freedesktop.DBus'," | |
82 | "member='NameOwnerChanged'," | |
83 | "path='/org/freedesktop/DBus'," | |
84 | "arg0='%s'," | |
85 | "arg1='%s'," | |
86 | "arg2=''", name, unique); | |
87 | if (r < 0) | |
88 | return -ENOMEM; | |
89 | ||
19befb2d | 90 | r = sd_bus_add_match(bus, NULL, match, name_owner_change_callback, e); |
40ca29a1 LP |
91 | if (r < 0) |
92 | return r; | |
93 | ||
94 | r = sd_bus_release_name(bus, name); | |
95 | if (r < 0) | |
96 | return r; | |
97 | ||
40ca29a1 LP |
98 | return 0; |
99 | } | |
100 | ||
37224a5f LP |
101 | int bus_event_loop_with_idle( |
102 | sd_event *e, | |
103 | sd_bus *bus, | |
104 | const char *name, | |
105 | usec_t timeout, | |
106 | check_idle_t check_idle, | |
107 | void *userdata) { | |
40ca29a1 | 108 | bool exiting = false; |
6203e07a | 109 | int r, code; |
40ca29a1 LP |
110 | |
111 | assert(e); | |
112 | assert(bus); | |
113 | assert(name); | |
114 | ||
115 | for (;;) { | |
37224a5f LP |
116 | bool idle; |
117 | ||
40ca29a1 LP |
118 | r = sd_event_get_state(e); |
119 | if (r < 0) | |
120 | return r; | |
40ca29a1 LP |
121 | if (r == SD_EVENT_FINISHED) |
122 | break; | |
123 | ||
37224a5f LP |
124 | if (check_idle) |
125 | idle = check_idle(userdata); | |
126 | else | |
127 | idle = true; | |
128 | ||
129 | r = sd_event_run(e, exiting || !idle ? (uint64_t) -1 : timeout); | |
40ca29a1 LP |
130 | if (r < 0) |
131 | return r; | |
132 | ||
a8ba6cd1 | 133 | if (r == 0 && !exiting && idle) { |
b27adf35 LP |
134 | |
135 | r = sd_bus_try_close(bus); | |
136 | if (r == -EBUSY) | |
137 | continue; | |
138 | ||
430e21c2 LP |
139 | /* Fallback for dbus1 connections: we |
140 | * unregister the name and wait for the | |
141 | * response to come through for it */ | |
15411c0c | 142 | if (r == -EOPNOTSUPP) { |
430e21c2 LP |
143 | |
144 | /* Inform the service manager that we | |
145 | * are going down, so that it will | |
146 | * queue all further start requests, | |
147 | * instead of assuming we are already | |
148 | * running. */ | |
149 | sd_notify(false, "STOPPING=1"); | |
b27adf35 LP |
150 | |
151 | r = bus_async_unregister_and_exit(e, bus, name); | |
152 | if (r < 0) | |
153 | return r; | |
154 | ||
155 | exiting = true; | |
156 | continue; | |
157 | } | |
158 | ||
40ca29a1 LP |
159 | if (r < 0) |
160 | return r; | |
161 | ||
b27adf35 LP |
162 | sd_event_exit(e, 0); |
163 | break; | |
40ca29a1 LP |
164 | } |
165 | } | |
166 | ||
6203e07a LP |
167 | r = sd_event_get_exit_code(e, &code); |
168 | if (r < 0) | |
169 | return r; | |
170 | ||
171 | return code; | |
40ca29a1 LP |
172 | } |
173 | ||
5fd38859 DH |
174 | int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error) { |
175 | _cleanup_bus_message_unref_ sd_bus_message *rep = NULL; | |
176 | int r, has_owner = 0; | |
177 | ||
178 | assert(c); | |
179 | assert(name); | |
180 | ||
181 | r = sd_bus_call_method(c, | |
182 | "org.freedesktop.DBus", | |
183 | "/org/freedesktop/dbus", | |
184 | "org.freedesktop.DBus", | |
185 | "NameHasOwner", | |
186 | error, | |
187 | &rep, | |
188 | "s", | |
189 | name); | |
190 | if (r < 0) | |
191 | return r; | |
192 | ||
193 | r = sd_bus_message_read_basic(rep, 'b', &has_owner); | |
194 | if (r < 0) | |
195 | return sd_bus_error_set_errno(error, r); | |
196 | ||
197 | return has_owner; | |
198 | } | |
199 | ||
c529695e LP |
200 | static int check_good_user(sd_bus_message *m, uid_t good_user) { |
201 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; | |
202 | uid_t sender_uid; | |
203 | int r; | |
204 | ||
205 | assert(m); | |
206 | ||
207 | if (good_user == UID_INVALID) | |
208 | return 0; | |
209 | ||
210 | r = sd_bus_query_sender_creds(m, SD_BUS_CREDS_EUID, &creds); | |
211 | if (r < 0) | |
212 | return r; | |
213 | ||
0f514420 LP |
214 | /* Don't trust augmented credentials for authorization */ |
215 | assert_return((sd_bus_creds_get_augmented_mask(creds) & SD_BUS_CREDS_EUID) == 0, -EPERM); | |
216 | ||
c529695e LP |
217 | r = sd_bus_creds_get_euid(creds, &sender_uid); |
218 | if (r < 0) | |
219 | return r; | |
220 | ||
221 | return sender_uid == good_user; | |
222 | } | |
223 | ||
ceb24229 | 224 | int bus_test_polkit( |
f3885791 | 225 | sd_bus_message *call, |
def9a7aa | 226 | int capability, |
40ca29a1 | 227 | const char *action, |
403ed0e5 | 228 | const char **details, |
c529695e | 229 | uid_t good_user, |
40ca29a1 LP |
230 | bool *_challenge, |
231 | sd_bus_error *e) { | |
232 | ||
40ca29a1 LP |
233 | int r; |
234 | ||
f3885791 | 235 | assert(call); |
40ca29a1 LP |
236 | assert(action); |
237 | ||
ceb24229 LP |
238 | /* Tests non-interactively! */ |
239 | ||
c529695e LP |
240 | r = check_good_user(call, good_user); |
241 | if (r != 0) | |
242 | return r; | |
243 | ||
f3885791 | 244 | r = sd_bus_query_sender_privilege(call, capability); |
5b12334d LP |
245 | if (r < 0) |
246 | return r; | |
f3885791 | 247 | else if (r > 0) |
40ca29a1 | 248 | return 1; |
40ca29a1 LP |
249 | #ifdef ENABLE_POLKIT |
250 | else { | |
403ed0e5 | 251 | _cleanup_bus_message_unref_ sd_bus_message *request = NULL; |
40ca29a1 | 252 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
ceb24229 | 253 | int authorized = false, challenge = false; |
403ed0e5 | 254 | const char *sender, **k, **v; |
5b12334d | 255 | |
f3885791 | 256 | sender = sd_bus_message_get_sender(call); |
5b12334d LP |
257 | if (!sender) |
258 | return -EBADMSG; | |
40ca29a1 | 259 | |
403ed0e5 | 260 | r = sd_bus_message_new_method_call( |
f3885791 | 261 | call->bus, |
403ed0e5 | 262 | &request, |
40ca29a1 LP |
263 | "org.freedesktop.PolicyKit1", |
264 | "/org/freedesktop/PolicyKit1/Authority", | |
265 | "org.freedesktop.PolicyKit1.Authority", | |
403ed0e5 MC |
266 | "CheckAuthorization"); |
267 | if (r < 0) | |
268 | return r; | |
269 | ||
270 | r = sd_bus_message_append( | |
271 | request, | |
272 | "(sa{sv})s", | |
40ca29a1 | 273 | "system-bus-name", 1, "name", "s", sender, |
403ed0e5 MC |
274 | action); |
275 | if (r < 0) | |
276 | return r; | |
277 | ||
278 | r = sd_bus_message_open_container(request, 'a', "{ss}"); | |
279 | if (r < 0) | |
280 | return r; | |
40ca29a1 | 281 | |
403ed0e5 MC |
282 | STRV_FOREACH_PAIR(k, v, details) { |
283 | r = sd_bus_message_append(request, "{ss}", *k, *v); | |
284 | if (r < 0) | |
285 | return r; | |
286 | } | |
287 | ||
288 | r = sd_bus_message_close_container(request); | |
289 | if (r < 0) | |
290 | return r; | |
291 | ||
292 | r = sd_bus_message_append(request, "us", 0, NULL); | |
293 | if (r < 0) | |
294 | return r; | |
295 | ||
296 | r = sd_bus_call(call->bus, request, 0, e, &reply); | |
40ca29a1 LP |
297 | if (r < 0) { |
298 | /* Treat no PK available as access denied */ | |
299 | if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) { | |
300 | sd_bus_error_free(e); | |
301 | return -EACCES; | |
302 | } | |
303 | ||
304 | return r; | |
305 | } | |
306 | ||
313333b4 | 307 | r = sd_bus_message_enter_container(reply, 'r', "bba{ss}"); |
2b49a470 TA |
308 | if (r < 0) |
309 | return r; | |
310 | ||
311 | r = sd_bus_message_read(reply, "bb", &authorized, &challenge); | |
312 | if (r < 0) | |
313 | return r; | |
40ca29a1 LP |
314 | |
315 | if (authorized) | |
316 | return 1; | |
317 | ||
318 | if (_challenge) { | |
319 | *_challenge = challenge; | |
320 | return 0; | |
321 | } | |
322 | } | |
323 | #endif | |
324 | ||
325 | return -EACCES; | |
326 | } | |
327 | ||
328 | #ifdef ENABLE_POLKIT | |
329 | ||
330 | typedef struct AsyncPolkitQuery { | |
331 | sd_bus_message *request, *reply; | |
332 | sd_bus_message_handler_t callback; | |
333 | void *userdata; | |
19befb2d | 334 | sd_bus_slot *slot; |
ebcf1f97 | 335 | Hashmap *registry; |
40ca29a1 LP |
336 | } AsyncPolkitQuery; |
337 | ||
19befb2d | 338 | static void async_polkit_query_free(AsyncPolkitQuery *q) { |
ebcf1f97 LP |
339 | |
340 | if (!q) | |
341 | return; | |
342 | ||
19befb2d | 343 | sd_bus_slot_unref(q->slot); |
ebcf1f97 LP |
344 | |
345 | if (q->registry && q->request) | |
346 | hashmap_remove(q->registry, q->request); | |
347 | ||
348 | sd_bus_message_unref(q->request); | |
349 | sd_bus_message_unref(q->reply); | |
350 | ||
351 | free(q); | |
352 | } | |
353 | ||
19070062 | 354 | static int async_polkit_callback(sd_bus_message *reply, void *userdata, sd_bus_error *error) { |
ebcf1f97 | 355 | _cleanup_bus_error_free_ sd_bus_error error_buffer = SD_BUS_ERROR_NULL; |
ebcf1f97 | 356 | AsyncPolkitQuery *q = userdata; |
40ca29a1 LP |
357 | int r; |
358 | ||
40ca29a1 LP |
359 | assert(reply); |
360 | assert(q); | |
361 | ||
19befb2d | 362 | q->slot = sd_bus_slot_unref(q->slot); |
40ca29a1 | 363 | q->reply = sd_bus_message_ref(reply); |
40ca29a1 | 364 | |
ebcf1f97 LP |
365 | r = sd_bus_message_rewind(q->request, true); |
366 | if (r < 0) { | |
367 | r = sd_bus_reply_method_errno(q->request, r, NULL); | |
368 | goto finish; | |
369 | } | |
40ca29a1 | 370 | |
19070062 | 371 | r = q->callback(q->request, q->userdata, &error_buffer); |
ebcf1f97 | 372 | r = bus_maybe_reply_error(q->request, r, &error_buffer); |
40ca29a1 | 373 | |
ebcf1f97 | 374 | finish: |
19befb2d LP |
375 | async_polkit_query_free(q); |
376 | ||
ebcf1f97 | 377 | return r; |
40ca29a1 LP |
378 | } |
379 | ||
380 | #endif | |
381 | ||
382 | int bus_verify_polkit_async( | |
f3885791 | 383 | sd_bus_message *call, |
def9a7aa | 384 | int capability, |
40ca29a1 | 385 | const char *action, |
403ed0e5 | 386 | const char **details, |
40ca29a1 | 387 | bool interactive, |
c529695e | 388 | uid_t good_user, |
f3885791 LP |
389 | Hashmap **registry, |
390 | sd_bus_error *error) { | |
40ca29a1 LP |
391 | |
392 | #ifdef ENABLE_POLKIT | |
393 | _cleanup_bus_message_unref_ sd_bus_message *pk = NULL; | |
394 | AsyncPolkitQuery *q; | |
403ed0e5 | 395 | const char *sender, **k, **v; |
f3885791 LP |
396 | sd_bus_message_handler_t callback; |
397 | void *userdata; | |
b911eb15 | 398 | int c; |
5b12334d | 399 | #endif |
40ca29a1 LP |
400 | int r; |
401 | ||
f3885791 | 402 | assert(call); |
40ca29a1 | 403 | assert(action); |
f3885791 | 404 | assert(registry); |
40ca29a1 | 405 | |
c529695e LP |
406 | r = check_good_user(call, good_user); |
407 | if (r != 0) | |
408 | return r; | |
409 | ||
40ca29a1 | 410 | #ifdef ENABLE_POLKIT |
f3885791 | 411 | q = hashmap_get(*registry, call); |
40ca29a1 | 412 | if (q) { |
102d8f81 | 413 | int authorized, challenge; |
40ca29a1 LP |
414 | |
415 | /* This is the second invocation of this function, and | |
416 | * there's already a response from polkit, let's | |
417 | * process it */ | |
418 | assert(q->reply); | |
419 | ||
420 | if (sd_bus_message_is_method_error(q->reply, NULL)) { | |
421 | const sd_bus_error *e; | |
422 | ||
ebcf1f97 | 423 | /* Copy error from polkit reply */ |
40ca29a1 LP |
424 | e = sd_bus_message_get_error(q->reply); |
425 | sd_bus_error_copy(error, e); | |
40ca29a1 | 426 | |
ebcf1f97 LP |
427 | /* Treat no PK available as access denied */ |
428 | if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) | |
429 | return -EACCES; | |
430 | ||
5958d089 | 431 | return -sd_bus_error_get_errno(e); |
40ca29a1 LP |
432 | } |
433 | ||
434 | r = sd_bus_message_enter_container(q->reply, 'r', "bba{ss}"); | |
435 | if (r >= 0) | |
436 | r = sd_bus_message_read(q->reply, "bb", &authorized, &challenge); | |
437 | ||
40ca29a1 LP |
438 | if (r < 0) |
439 | return r; | |
440 | ||
441 | if (authorized) | |
442 | return 1; | |
443 | ||
f2288cc6 LP |
444 | if (challenge) |
445 | return sd_bus_error_set(error, SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED, "Interactive authentication required."); | |
446 | ||
40ca29a1 LP |
447 | return -EACCES; |
448 | } | |
449 | #endif | |
450 | ||
f3885791 | 451 | r = sd_bus_query_sender_privilege(call, capability); |
5b12334d LP |
452 | if (r < 0) |
453 | return r; | |
f3885791 | 454 | else if (r > 0) |
40ca29a1 | 455 | return 1; |
5b12334d | 456 | |
40ca29a1 | 457 | #ifdef ENABLE_POLKIT |
f3885791 LP |
458 | if (sd_bus_get_current_message(call->bus) != call) |
459 | return -EINVAL; | |
460 | ||
461 | callback = sd_bus_get_current_handler(call->bus); | |
462 | if (!callback) | |
463 | return -EINVAL; | |
464 | ||
465 | userdata = sd_bus_get_current_userdata(call->bus); | |
466 | ||
467 | sender = sd_bus_message_get_sender(call); | |
5b12334d LP |
468 | if (!sender) |
469 | return -EBADMSG; | |
40ca29a1 | 470 | |
b911eb15 LP |
471 | c = sd_bus_message_get_allow_interactive_authorization(call); |
472 | if (c < 0) | |
473 | return c; | |
474 | if (c > 0) | |
475 | interactive = true; | |
476 | ||
d5099efc | 477 | r = hashmap_ensure_allocated(registry, NULL); |
40ca29a1 LP |
478 | if (r < 0) |
479 | return r; | |
480 | ||
481 | r = sd_bus_message_new_method_call( | |
f3885791 | 482 | call->bus, |
151b9b96 | 483 | &pk, |
40ca29a1 LP |
484 | "org.freedesktop.PolicyKit1", |
485 | "/org/freedesktop/PolicyKit1/Authority", | |
486 | "org.freedesktop.PolicyKit1.Authority", | |
151b9b96 | 487 | "CheckAuthorization"); |
40ca29a1 LP |
488 | if (r < 0) |
489 | return r; | |
490 | ||
491 | r = sd_bus_message_append( | |
492 | pk, | |
403ed0e5 | 493 | "(sa{sv})s", |
40ca29a1 | 494 | "system-bus-name", 1, "name", "s", sender, |
403ed0e5 MC |
495 | action); |
496 | if (r < 0) | |
497 | return r; | |
498 | ||
499 | r = sd_bus_message_open_container(pk, 'a', "{ss}"); | |
500 | if (r < 0) | |
501 | return r; | |
502 | ||
503 | STRV_FOREACH_PAIR(k, v, details) { | |
504 | r = sd_bus_message_append(pk, "{ss}", *k, *v); | |
505 | if (r < 0) | |
506 | return r; | |
507 | } | |
508 | ||
509 | r = sd_bus_message_close_container(pk); | |
510 | if (r < 0) | |
511 | return r; | |
512 | ||
513 | r = sd_bus_message_append(pk, "us", !!interactive, NULL); | |
40ca29a1 LP |
514 | if (r < 0) |
515 | return r; | |
516 | ||
517 | q = new0(AsyncPolkitQuery, 1); | |
518 | if (!q) | |
519 | return -ENOMEM; | |
520 | ||
f3885791 | 521 | q->request = sd_bus_message_ref(call); |
40ca29a1 LP |
522 | q->callback = callback; |
523 | q->userdata = userdata; | |
524 | ||
f3885791 | 525 | r = hashmap_put(*registry, call, q); |
40ca29a1 | 526 | if (r < 0) { |
19befb2d | 527 | async_polkit_query_free(q); |
40ca29a1 LP |
528 | return r; |
529 | } | |
530 | ||
ebcf1f97 LP |
531 | q->registry = *registry; |
532 | ||
f3885791 | 533 | r = sd_bus_call_async(call->bus, &q->slot, pk, async_polkit_callback, q, 0); |
ebcf1f97 | 534 | if (r < 0) { |
19befb2d | 535 | async_polkit_query_free(q); |
40ca29a1 | 536 | return r; |
ebcf1f97 | 537 | } |
40ca29a1 LP |
538 | |
539 | return 0; | |
540 | #endif | |
541 | ||
542 | return -EACCES; | |
543 | } | |
544 | ||
36e34057 | 545 | void bus_verify_polkit_async_registry_free(Hashmap *registry) { |
40ca29a1 LP |
546 | #ifdef ENABLE_POLKIT |
547 | AsyncPolkitQuery *q; | |
548 | ||
549 | while ((q = hashmap_steal_first(registry))) | |
19befb2d | 550 | async_polkit_query_free(q); |
40ca29a1 LP |
551 | |
552 | hashmap_free(registry); | |
553 | #endif | |
554 | } | |
0c842e0a | 555 | |
718db961 | 556 | int bus_check_peercred(sd_bus *c) { |
0c842e0a TG |
557 | struct ucred ucred; |
558 | socklen_t l; | |
0f8bd8de | 559 | int fd; |
0c842e0a TG |
560 | |
561 | assert(c); | |
562 | ||
563 | fd = sd_bus_get_fd(c); | |
0f8bd8de LP |
564 | if (fd < 0) |
565 | return fd; | |
0c842e0a TG |
566 | |
567 | l = sizeof(struct ucred); | |
0f8bd8de | 568 | if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0) |
0c842e0a | 569 | return -errno; |
0c842e0a | 570 | |
0f8bd8de | 571 | if (l != sizeof(struct ucred)) |
0c842e0a | 572 | return -E2BIG; |
0c842e0a TG |
573 | |
574 | if (ucred.uid != 0 && ucred.uid != geteuid()) | |
575 | return -EPERM; | |
576 | ||
577 | return 1; | |
578 | } | |
579 | ||
266f3e26 | 580 | int bus_connect_system_systemd(sd_bus **_bus) { |
0f8bd8de | 581 | _cleanup_bus_unref_ sd_bus *bus = NULL; |
0c842e0a | 582 | int r; |
0c842e0a TG |
583 | |
584 | assert(_bus); | |
585 | ||
0f8bd8de | 586 | if (geteuid() != 0) |
266f3e26 | 587 | return sd_bus_default_system(_bus); |
a1da8583 | 588 | |
a6aa8912 LP |
589 | /* If we are root and kdbus is not available, then let's talk |
590 | * directly to the system instance, instead of going via the | |
591 | * bus */ | |
a1da8583 | 592 | |
0f8bd8de LP |
593 | r = sd_bus_new(&bus); |
594 | if (r < 0) | |
595 | return r; | |
a1da8583 | 596 | |
e3afaf6b | 597 | r = sd_bus_set_address(bus, KERNEL_SYSTEM_BUS_ADDRESS); |
0f8bd8de LP |
598 | if (r < 0) |
599 | return r; | |
a1da8583 | 600 | |
a6aa8912 LP |
601 | bus->bus_client = true; |
602 | ||
0f8bd8de | 603 | r = sd_bus_start(bus); |
a6aa8912 LP |
604 | if (r >= 0) { |
605 | *_bus = bus; | |
606 | bus = NULL; | |
607 | return 0; | |
608 | } | |
609 | ||
610 | bus = sd_bus_unref(bus); | |
a6aa8912 LP |
611 | |
612 | r = sd_bus_new(&bus); | |
0f8bd8de LP |
613 | if (r < 0) |
614 | return r; | |
a1da8583 | 615 | |
a6aa8912 LP |
616 | r = sd_bus_set_address(bus, "unix:path=/run/systemd/private"); |
617 | if (r < 0) | |
618 | return r; | |
619 | ||
620 | r = sd_bus_start(bus); | |
621 | if (r < 0) | |
266f3e26 | 622 | return sd_bus_default_system(_bus); |
a6aa8912 | 623 | |
0f8bd8de | 624 | r = bus_check_peercred(bus); |
a1da8583 TG |
625 | if (r < 0) |
626 | return r; | |
627 | ||
628 | *_bus = bus; | |
0f8bd8de LP |
629 | bus = NULL; |
630 | ||
a1da8583 TG |
631 | return 0; |
632 | } | |
633 | ||
266f3e26 | 634 | int bus_connect_user_systemd(sd_bus **_bus) { |
41dd15e4 | 635 | _cleanup_bus_unref_ sd_bus *bus = NULL; |
a6aa8912 | 636 | _cleanup_free_ char *ee = NULL; |
41dd15e4 LP |
637 | const char *e; |
638 | int r; | |
639 | ||
a6aa8912 | 640 | /* Try via kdbus first, and then directly */ |
41dd15e4 LP |
641 | |
642 | assert(_bus); | |
643 | ||
a6aa8912 LP |
644 | r = sd_bus_new(&bus); |
645 | if (r < 0) | |
646 | return r; | |
647 | ||
e3afaf6b | 648 | if (asprintf(&bus->address, KERNEL_USER_BUS_ADDRESS_FMT, getuid()) < 0) |
a6aa8912 LP |
649 | return -ENOMEM; |
650 | ||
651 | bus->bus_client = true; | |
652 | ||
653 | r = sd_bus_start(bus); | |
654 | if (r >= 0) { | |
655 | *_bus = bus; | |
656 | bus = NULL; | |
657 | return 0; | |
658 | } | |
659 | ||
660 | bus = sd_bus_unref(bus); | |
a6aa8912 | 661 | |
41dd15e4 | 662 | e = secure_getenv("XDG_RUNTIME_DIR"); |
537220d9 | 663 | if (!e) |
266f3e26 | 664 | return sd_bus_default_user(_bus); |
537220d9 | 665 | |
a6aa8912 LP |
666 | ee = bus_address_escape(e); |
667 | if (!ee) | |
537220d9 | 668 | return -ENOMEM; |
41dd15e4 LP |
669 | |
670 | r = sd_bus_new(&bus); | |
671 | if (r < 0) | |
672 | return r; | |
673 | ||
a6aa8912 LP |
674 | bus->address = strjoin("unix:path=", ee, "/systemd/private", NULL); |
675 | if (!bus->address) | |
676 | return -ENOMEM; | |
41dd15e4 LP |
677 | |
678 | r = sd_bus_start(bus); | |
679 | if (r < 0) | |
266f3e26 | 680 | return sd_bus_default_user(_bus); |
41dd15e4 LP |
681 | |
682 | r = bus_check_peercred(bus); | |
683 | if (r < 0) | |
684 | return r; | |
685 | ||
686 | *_bus = bus; | |
687 | bus = NULL; | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
9f6eb1cd | 692 | int bus_print_property(const char *name, sd_bus_message *property, bool all) { |
a1da8583 TG |
693 | char type; |
694 | const char *contents; | |
9f6eb1cd | 695 | int r; |
a1da8583 TG |
696 | |
697 | assert(name); | |
698 | assert(property); | |
699 | ||
9f6eb1cd KS |
700 | r = sd_bus_message_peek_type(property, &type, &contents); |
701 | if (r < 0) | |
702 | return r; | |
a1da8583 TG |
703 | |
704 | switch (type) { | |
705 | ||
706 | case SD_BUS_TYPE_STRING: { | |
707 | const char *s; | |
9f6eb1cd KS |
708 | |
709 | r = sd_bus_message_read_basic(property, type, &s); | |
710 | if (r < 0) | |
711 | return r; | |
a1da8583 | 712 | |
27e9c5af LP |
713 | if (all || !isempty(s)) { |
714 | _cleanup_free_ char *escaped = NULL; | |
715 | ||
716 | escaped = xescape(s, "\n"); | |
717 | if (!escaped) | |
718 | return -ENOMEM; | |
719 | ||
720 | printf("%s=%s\n", name, escaped); | |
721 | } | |
a1da8583 TG |
722 | |
723 | return 1; | |
724 | } | |
725 | ||
726 | case SD_BUS_TYPE_BOOLEAN: { | |
c2fa048c | 727 | int b; |
a1da8583 | 728 | |
9f6eb1cd KS |
729 | r = sd_bus_message_read_basic(property, type, &b); |
730 | if (r < 0) | |
731 | return r; | |
732 | ||
a1da8583 TG |
733 | printf("%s=%s\n", name, yes_no(b)); |
734 | ||
735 | return 1; | |
736 | } | |
737 | ||
738 | case SD_BUS_TYPE_UINT64: { | |
739 | uint64_t u; | |
740 | ||
9f6eb1cd KS |
741 | r = sd_bus_message_read_basic(property, type, &u); |
742 | if (r < 0) | |
743 | return r; | |
a1da8583 TG |
744 | |
745 | /* Yes, heuristics! But we can change this check | |
746 | * should it turn out to not be sufficient */ | |
747 | ||
748 | if (endswith(name, "Timestamp")) { | |
749 | char timestamp[FORMAT_TIMESTAMP_MAX], *t; | |
750 | ||
751 | t = format_timestamp(timestamp, sizeof(timestamp), u); | |
752 | if (t || all) | |
753 | printf("%s=%s\n", name, strempty(t)); | |
754 | ||
755 | } else if (strstr(name, "USec")) { | |
756 | char timespan[FORMAT_TIMESPAN_MAX]; | |
757 | ||
758 | printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u, 0)); | |
759 | } else | |
760 | printf("%s=%llu\n", name, (unsigned long long) u); | |
761 | ||
762 | return 1; | |
763 | } | |
764 | ||
d7161865 DM |
765 | case SD_BUS_TYPE_INT64: { |
766 | int64_t i; | |
767 | ||
768 | r = sd_bus_message_read_basic(property, type, &i); | |
769 | if (r < 0) | |
770 | return r; | |
771 | ||
772 | printf("%s=%lld\n", name, (long long) i); | |
773 | ||
774 | return 1; | |
775 | } | |
776 | ||
a1da8583 TG |
777 | case SD_BUS_TYPE_UINT32: { |
778 | uint32_t u; | |
779 | ||
9f6eb1cd KS |
780 | r = sd_bus_message_read_basic(property, type, &u); |
781 | if (r < 0) | |
782 | return r; | |
a1da8583 TG |
783 | |
784 | if (strstr(name, "UMask") || strstr(name, "Mode")) | |
785 | printf("%s=%04o\n", name, u); | |
786 | else | |
787 | printf("%s=%u\n", name, (unsigned) u); | |
788 | ||
789 | return 1; | |
790 | } | |
791 | ||
792 | case SD_BUS_TYPE_INT32: { | |
793 | int32_t i; | |
794 | ||
9f6eb1cd KS |
795 | r = sd_bus_message_read_basic(property, type, &i); |
796 | if (r < 0) | |
797 | return r; | |
a1da8583 TG |
798 | |
799 | printf("%s=%i\n", name, (int) i); | |
800 | return 1; | |
801 | } | |
802 | ||
803 | case SD_BUS_TYPE_DOUBLE: { | |
804 | double d; | |
805 | ||
9f6eb1cd KS |
806 | r = sd_bus_message_read_basic(property, type, &d); |
807 | if (r < 0) | |
808 | return r; | |
a1da8583 TG |
809 | |
810 | printf("%s=%g\n", name, d); | |
811 | return 1; | |
812 | } | |
813 | ||
814 | case SD_BUS_TYPE_ARRAY: | |
a1da8583 | 815 | if (streq(contents, "s")) { |
261afec5 MAP |
816 | bool first = true; |
817 | const char *str; | |
a1da8583 | 818 | |
9f6eb1cd KS |
819 | r = sd_bus_message_enter_container(property, SD_BUS_TYPE_ARRAY, contents); |
820 | if (r < 0) | |
821 | return r; | |
822 | ||
261afec5 | 823 | while((r = sd_bus_message_read_basic(property, SD_BUS_TYPE_STRING, &str)) > 0) { |
27e9c5af LP |
824 | _cleanup_free_ char *escaped = NULL; |
825 | ||
261afec5 MAP |
826 | if (first) |
827 | printf("%s=", name); | |
828 | ||
27e9c5af LP |
829 | escaped = xescape(str, "\n "); |
830 | if (!escaped) | |
831 | return -ENOMEM; | |
832 | ||
833 | printf("%s%s", first ? "" : " ", escaped); | |
261afec5 MAP |
834 | |
835 | first = false; | |
836 | } | |
9f6eb1cd KS |
837 | if (r < 0) |
838 | return r; | |
a1da8583 | 839 | |
261afec5 | 840 | if (first && all) |
a1da8583 | 841 | printf("%s=", name); |
261afec5 | 842 | if (!first || all) |
a1da8583 | 843 | puts(""); |
a1da8583 | 844 | |
9f6eb1cd KS |
845 | r = sd_bus_message_exit_container(property); |
846 | if (r < 0) | |
847 | return r; | |
a1da8583 TG |
848 | |
849 | return 1; | |
850 | ||
851 | } else if (streq(contents, "y")) { | |
852 | const uint8_t *u; | |
853 | size_t n; | |
854 | ||
9f6eb1cd KS |
855 | r = sd_bus_message_read_array(property, SD_BUS_TYPE_BYTE, (const void**) &u, &n); |
856 | if (r < 0) | |
857 | return r; | |
858 | ||
a1da8583 TG |
859 | if (all || n > 0) { |
860 | unsigned int i; | |
861 | ||
862 | printf("%s=", name); | |
863 | ||
864 | for (i = 0; i < n; i++) | |
865 | printf("%02x", u[i]); | |
866 | ||
867 | puts(""); | |
868 | } | |
869 | ||
870 | return 1; | |
871 | ||
872 | } else if (streq(contents, "u")) { | |
873 | uint32_t *u; | |
874 | size_t n; | |
875 | ||
9f6eb1cd KS |
876 | r = sd_bus_message_read_array(property, SD_BUS_TYPE_UINT32, (const void**) &u, &n); |
877 | if (r < 0) | |
878 | return r; | |
879 | ||
a1da8583 TG |
880 | if (all || n > 0) { |
881 | unsigned int i; | |
882 | ||
883 | printf("%s=", name); | |
884 | ||
885 | for (i = 0; i < n; i++) | |
886 | printf("%08x", u[i]); | |
887 | ||
888 | puts(""); | |
889 | } | |
890 | ||
891 | return 1; | |
892 | } | |
893 | ||
894 | break; | |
895 | } | |
896 | ||
897 | return 0; | |
898 | } | |
d21ed1ea | 899 | |
27e72d6b | 900 | int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool all) { |
9f6eb1cd | 901 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
ffc06c35 KS |
902 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
903 | int r; | |
904 | ||
9f6eb1cd KS |
905 | assert(bus); |
906 | assert(path); | |
907 | ||
908 | r = sd_bus_call_method(bus, | |
27e72d6b | 909 | dest, |
ffc06c35 KS |
910 | path, |
911 | "org.freedesktop.DBus.Properties", | |
912 | "GetAll", | |
913 | &error, | |
9f6eb1cd | 914 | &reply, |
ffc06c35 | 915 | "s", ""); |
9f6eb1cd | 916 | if (r < 0) |
ffc06c35 | 917 | return r; |
ffc06c35 | 918 | |
9f6eb1cd | 919 | r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}"); |
ffc06c35 KS |
920 | if (r < 0) |
921 | return r; | |
922 | ||
9f6eb1cd | 923 | while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { |
ffc06c35 | 924 | const char *name; |
ffc06c35 | 925 | const char *contents; |
ffc06c35 | 926 | |
9f6eb1cd | 927 | r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &name); |
ffc06c35 KS |
928 | if (r < 0) |
929 | return r; | |
930 | ||
9f6eb1cd KS |
931 | if (!filter || strv_find(filter, name)) { |
932 | r = sd_bus_message_peek_type(reply, NULL, &contents); | |
933 | if (r < 0) | |
934 | return r; | |
935 | ||
936 | r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents); | |
937 | if (r < 0) | |
938 | return r; | |
ffc06c35 | 939 | |
9f6eb1cd KS |
940 | r = bus_print_property(name, reply, all); |
941 | if (r < 0) | |
942 | return r; | |
27e72d6b SP |
943 | if (r == 0) { |
944 | if (all) | |
945 | printf("%s=[unprintable]\n", name); | |
946 | /* skip what we didn't read */ | |
947 | r = sd_bus_message_skip(reply, contents); | |
948 | if (r < 0) | |
949 | return r; | |
950 | } | |
9f6eb1cd KS |
951 | |
952 | r = sd_bus_message_exit_container(reply); | |
953 | if (r < 0) | |
954 | return r; | |
955 | } else { | |
956 | r = sd_bus_message_skip(reply, "v"); | |
957 | if (r < 0) | |
958 | return r; | |
959 | } | |
960 | ||
961 | r = sd_bus_message_exit_container(reply); | |
ffc06c35 KS |
962 | if (r < 0) |
963 | return r; | |
9f6eb1cd KS |
964 | } |
965 | if (r < 0) | |
966 | return r; | |
ffc06c35 | 967 | |
9f6eb1cd KS |
968 | r = sd_bus_message_exit_container(reply); |
969 | if (r < 0) | |
970 | return r; | |
ffc06c35 | 971 | |
9f6eb1cd KS |
972 | return 0; |
973 | } | |
ffc06c35 | 974 | |
9f6eb1cd KS |
975 | int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { |
976 | sd_id128_t *p = userdata; | |
977 | const void *v; | |
978 | size_t n; | |
979 | int r; | |
ffc06c35 | 980 | |
9f6eb1cd KS |
981 | r = sd_bus_message_read_array(m, SD_BUS_TYPE_BYTE, &v, &n); |
982 | if (r < 0) | |
983 | return r; | |
ffc06c35 | 984 | |
9f6eb1cd KS |
985 | if (n == 0) |
986 | *p = SD_ID128_NULL; | |
987 | else if (n == 16) | |
988 | memcpy((*p).bytes, v, n); | |
989 | else | |
990 | return -EINVAL; | |
ffc06c35 | 991 | |
9f6eb1cd KS |
992 | return 0; |
993 | } | |
ffc06c35 | 994 | |
9f6eb1cd KS |
995 | static int map_basic(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { |
996 | char type; | |
997 | int r; | |
ffc06c35 | 998 | |
9f6eb1cd KS |
999 | r = sd_bus_message_peek_type(m, &type, NULL); |
1000 | if (r < 0) | |
1001 | return r; | |
ffc06c35 | 1002 | |
9f6eb1cd KS |
1003 | switch (type) { |
1004 | case SD_BUS_TYPE_STRING: { | |
1005 | const char *s; | |
9f6eb1cd | 1006 | char **p = userdata; |
ffc06c35 | 1007 | |
9f6eb1cd KS |
1008 | r = sd_bus_message_read_basic(m, type, &s); |
1009 | if (r < 0) | |
1010 | break; | |
ffc06c35 | 1011 | |
9f6eb1cd KS |
1012 | if (isempty(s)) |
1013 | break; | |
ffc06c35 | 1014 | |
0704ea57 | 1015 | r = free_and_strdup(p, s); |
9f6eb1cd KS |
1016 | break; |
1017 | } | |
ffc06c35 | 1018 | |
9f6eb1cd | 1019 | case SD_BUS_TYPE_ARRAY: { |
7d6884b6 TA |
1020 | _cleanup_strv_free_ char **l = NULL; |
1021 | char ***p = userdata; | |
ffc06c35 | 1022 | |
9f6eb1cd KS |
1023 | r = bus_message_read_strv_extend(m, &l); |
1024 | if (r < 0) | |
1025 | break; | |
ffc06c35 | 1026 | |
9f6eb1cd KS |
1027 | strv_free(*p); |
1028 | *p = l; | |
1029 | l = NULL; | |
ffc06c35 | 1030 | |
9f6eb1cd KS |
1031 | break; |
1032 | } | |
ffc06c35 | 1033 | |
9f6eb1cd KS |
1034 | case SD_BUS_TYPE_BOOLEAN: { |
1035 | unsigned b; | |
1036 | bool *p = userdata; | |
ffc06c35 | 1037 | |
9f6eb1cd KS |
1038 | r = sd_bus_message_read_basic(m, type, &b); |
1039 | if (r < 0) | |
1040 | break; | |
ffc06c35 | 1041 | |
9f6eb1cd | 1042 | *p = b; |
ffc06c35 | 1043 | |
9f6eb1cd KS |
1044 | break; |
1045 | } | |
ffc06c35 | 1046 | |
9f6eb1cd KS |
1047 | case SD_BUS_TYPE_UINT32: { |
1048 | uint64_t u; | |
1049 | uint32_t *p = userdata; | |
1050 | ||
1051 | r = sd_bus_message_read_basic(m, type, &u); | |
1052 | if (r < 0) | |
ffc06c35 | 1053 | break; |
ffc06c35 | 1054 | |
9f6eb1cd KS |
1055 | *p = u; |
1056 | ||
1057 | break; | |
1058 | } | |
1059 | ||
1060 | case SD_BUS_TYPE_UINT64: { | |
1061 | uint64_t t; | |
1062 | uint64_t *p = userdata; | |
1063 | ||
1064 | r = sd_bus_message_read_basic(m, type, &t); | |
1065 | if (r < 0) | |
ffc06c35 | 1066 | break; |
ffc06c35 | 1067 | |
9f6eb1cd KS |
1068 | *p = t; |
1069 | ||
1070 | break; | |
1071 | } | |
1072 | ||
1073 | default: | |
1074 | break; | |
1075 | } | |
1076 | ||
1077 | return r; | |
1078 | } | |
1079 | ||
fe506d56 LP |
1080 | int bus_message_map_all_properties( |
1081 | sd_bus_message *m, | |
1082 | const struct bus_properties_map *map, | |
1083 | void *userdata) { | |
1084 | ||
9f6eb1cd KS |
1085 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
1086 | int r; | |
1087 | ||
aae2b488 | 1088 | assert(m); |
9f6eb1cd KS |
1089 | assert(map); |
1090 | ||
9f6eb1cd KS |
1091 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}"); |
1092 | if (r < 0) | |
1093 | return r; | |
1094 | ||
1095 | while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { | |
1096 | const struct bus_properties_map *prop; | |
1097 | const char *member; | |
1098 | const char *contents; | |
1099 | void *v; | |
1100 | unsigned i; | |
1101 | ||
1102 | r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &member); | |
ffc06c35 KS |
1103 | if (r < 0) |
1104 | return r; | |
1105 | ||
9f6eb1cd KS |
1106 | for (i = 0, prop = NULL; map[i].member; i++) |
1107 | if (streq(map[i].member, member)) { | |
1108 | prop = &map[i]; | |
1109 | break; | |
1110 | } | |
1111 | ||
1112 | if (prop) { | |
1113 | r = sd_bus_message_peek_type(m, NULL, &contents); | |
1114 | if (r < 0) | |
1115 | return r; | |
1116 | ||
1117 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, contents); | |
1118 | if (r < 0) | |
1119 | return r; | |
1120 | ||
1121 | v = (uint8_t *)userdata + prop->offset; | |
27e72d6b | 1122 | if (map[i].set) |
fe506d56 | 1123 | r = prop->set(sd_bus_message_get_bus(m), member, m, &error, v); |
9f6eb1cd | 1124 | else |
fe506d56 | 1125 | r = map_basic(sd_bus_message_get_bus(m), member, m, &error, v); |
2b49a470 TA |
1126 | if (r < 0) |
1127 | return r; | |
9f6eb1cd KS |
1128 | |
1129 | r = sd_bus_message_exit_container(m); | |
1130 | if (r < 0) | |
1131 | return r; | |
1132 | } else { | |
1133 | r = sd_bus_message_skip(m, "v"); | |
1134 | if (r < 0) | |
6c1508b8 | 1135 | return r; |
9f6eb1cd KS |
1136 | } |
1137 | ||
ffc06c35 KS |
1138 | r = sd_bus_message_exit_container(m); |
1139 | if (r < 0) | |
1140 | return r; | |
1141 | } | |
fe506d56 LP |
1142 | if (r < 0) |
1143 | return r; | |
ffc06c35 | 1144 | |
aae2b488 DH |
1145 | return sd_bus_message_exit_container(m); |
1146 | } | |
1147 | ||
fe506d56 LP |
1148 | int bus_message_map_properties_changed( |
1149 | sd_bus_message *m, | |
1150 | const struct bus_properties_map *map, | |
1151 | void *userdata) { | |
1152 | ||
aae2b488 DH |
1153 | const char *member; |
1154 | int r, invalidated, i; | |
1155 | ||
aae2b488 DH |
1156 | assert(m); |
1157 | assert(map); | |
1158 | ||
fe506d56 | 1159 | r = bus_message_map_all_properties(m, map, userdata); |
aae2b488 DH |
1160 | if (r < 0) |
1161 | return r; | |
1162 | ||
1163 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "s"); | |
1164 | if (r < 0) | |
1165 | return r; | |
1166 | ||
1167 | invalidated = 0; | |
1168 | while ((r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &member)) > 0) | |
1169 | for (i = 0; map[i].member; i++) | |
1170 | if (streq(map[i].member, member)) { | |
1171 | ++invalidated; | |
1172 | break; | |
1173 | } | |
fe506d56 LP |
1174 | if (r < 0) |
1175 | return r; | |
aae2b488 DH |
1176 | |
1177 | r = sd_bus_message_exit_container(m); | |
1178 | if (r < 0) | |
1179 | return r; | |
1180 | ||
1181 | return invalidated; | |
1182 | } | |
1183 | ||
fe506d56 LP |
1184 | int bus_map_all_properties( |
1185 | sd_bus *bus, | |
1186 | const char *destination, | |
1187 | const char *path, | |
1188 | const struct bus_properties_map *map, | |
1189 | void *userdata) { | |
1190 | ||
aae2b488 DH |
1191 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; |
1192 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
1193 | int r; | |
1194 | ||
1195 | assert(bus); | |
1196 | assert(destination); | |
1197 | assert(path); | |
1198 | assert(map); | |
1199 | ||
1200 | r = sd_bus_call_method( | |
1201 | bus, | |
1202 | destination, | |
1203 | path, | |
1204 | "org.freedesktop.DBus.Properties", | |
1205 | "GetAll", | |
1206 | &error, | |
1207 | &m, | |
1208 | "s", ""); | |
1209 | if (r < 0) | |
1210 | return r; | |
1211 | ||
fe506d56 | 1212 | return bus_message_map_all_properties(m, map, userdata); |
ffc06c35 KS |
1213 | } |
1214 | ||
266f3e26 | 1215 | int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **bus) { |
d21ed1ea LP |
1216 | int r; |
1217 | ||
1218 | assert(transport >= 0); | |
1219 | assert(transport < _BUS_TRANSPORT_MAX); | |
1220 | assert(bus); | |
1221 | ||
1222 | assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); | |
15411c0c | 1223 | assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); |
d21ed1ea LP |
1224 | |
1225 | switch (transport) { | |
1226 | ||
1227 | case BUS_TRANSPORT_LOCAL: | |
1228 | if (user) | |
76b54375 | 1229 | r = sd_bus_default_user(bus); |
d21ed1ea | 1230 | else |
76b54375 | 1231 | r = sd_bus_default_system(bus); |
d21ed1ea LP |
1232 | |
1233 | break; | |
1234 | ||
1235 | case BUS_TRANSPORT_REMOTE: | |
3db729cb | 1236 | r = sd_bus_open_system_remote(bus, host); |
41dd15e4 LP |
1237 | break; |
1238 | ||
de33fc62 LP |
1239 | case BUS_TRANSPORT_MACHINE: |
1240 | r = sd_bus_open_system_machine(bus, host); | |
41dd15e4 LP |
1241 | break; |
1242 | ||
1243 | default: | |
1244 | assert_not_reached("Hmm, unknown transport type."); | |
1245 | } | |
1246 | ||
1247 | return r; | |
1248 | } | |
1249 | ||
266f3e26 | 1250 | int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus) { |
41dd15e4 LP |
1251 | int r; |
1252 | ||
1253 | assert(transport >= 0); | |
1254 | assert(transport < _BUS_TRANSPORT_MAX); | |
1255 | assert(bus); | |
1256 | ||
1257 | assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); | |
15411c0c | 1258 | assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); |
41dd15e4 LP |
1259 | |
1260 | switch (transport) { | |
1261 | ||
1262 | case BUS_TRANSPORT_LOCAL: | |
1263 | if (user) | |
266f3e26 | 1264 | r = bus_connect_user_systemd(bus); |
41dd15e4 | 1265 | else |
266f3e26 | 1266 | r = bus_connect_system_systemd(bus); |
41dd15e4 LP |
1267 | |
1268 | break; | |
1269 | ||
1270 | case BUS_TRANSPORT_REMOTE: | |
3db729cb | 1271 | r = sd_bus_open_system_remote(bus, host); |
d21ed1ea LP |
1272 | break; |
1273 | ||
de33fc62 LP |
1274 | case BUS_TRANSPORT_MACHINE: |
1275 | r = sd_bus_open_system_machine(bus, host); | |
d21ed1ea LP |
1276 | break; |
1277 | ||
1278 | default: | |
1279 | assert_not_reached("Hmm, unknown transport type."); | |
1280 | } | |
1281 | ||
1282 | return r; | |
1283 | } | |
e6504030 LP |
1284 | |
1285 | int bus_property_get_bool( | |
1286 | sd_bus *bus, | |
1287 | const char *path, | |
1288 | const char *interface, | |
1289 | const char *property, | |
1290 | sd_bus_message *reply, | |
ebcf1f97 LP |
1291 | void *userdata, |
1292 | sd_bus_error *error) { | |
e6504030 LP |
1293 | |
1294 | int b = *(bool*) userdata; | |
1295 | ||
1296 | return sd_bus_message_append_basic(reply, 'b', &b); | |
1297 | } | |
1298 | ||
718db961 LP |
1299 | #if __SIZEOF_SIZE_T__ != 8 |
1300 | int bus_property_get_size( | |
e6504030 LP |
1301 | sd_bus *bus, |
1302 | const char *path, | |
1303 | const char *interface, | |
1304 | const char *property, | |
1305 | sd_bus_message *reply, | |
ebcf1f97 LP |
1306 | void *userdata, |
1307 | sd_bus_error *error) { | |
e6504030 | 1308 | |
718db961 | 1309 | uint64_t sz = *(size_t*) userdata; |
e6504030 | 1310 | |
718db961 | 1311 | return sd_bus_message_append_basic(reply, 't', &sz); |
e6504030 | 1312 | } |
718db961 LP |
1313 | #endif |
1314 | ||
1315 | #if __SIZEOF_LONG__ != 8 | |
1316 | int bus_property_get_long( | |
1317 | sd_bus *bus, | |
1318 | const char *path, | |
1319 | const char *interface, | |
1320 | const char *property, | |
1321 | sd_bus_message *reply, | |
ebcf1f97 LP |
1322 | void *userdata, |
1323 | sd_bus_error *error) { | |
718db961 LP |
1324 | |
1325 | int64_t l = *(long*) userdata; | |
1326 | ||
1327 | return sd_bus_message_append_basic(reply, 'x', &l); | |
1328 | } | |
1329 | ||
1330 | int bus_property_get_ulong( | |
1331 | sd_bus *bus, | |
1332 | const char *path, | |
1333 | const char *interface, | |
1334 | const char *property, | |
1335 | sd_bus_message *reply, | |
ebcf1f97 LP |
1336 | void *userdata, |
1337 | sd_bus_error *error) { | |
718db961 LP |
1338 | |
1339 | uint64_t ul = *(unsigned long*) userdata; | |
1340 | ||
1341 | return sd_bus_message_append_basic(reply, 't', &ul); | |
1342 | } | |
1343 | #endif | |
5b30bef8 LP |
1344 | |
1345 | int bus_log_parse_error(int r) { | |
23bbb0de | 1346 | return log_error_errno(r, "Failed to parse bus message: %m"); |
5b30bef8 | 1347 | } |
f459b602 MAP |
1348 | |
1349 | int bus_log_create_error(int r) { | |
23bbb0de | 1350 | return log_error_errno(r, "Failed to create bus message: %m"); |
f459b602 MAP |
1351 | } |
1352 | ||
1353 | int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u) { | |
1354 | assert(message); | |
1355 | assert(u); | |
1356 | ||
1238ee09 LP |
1357 | u->machine = NULL; |
1358 | ||
f459b602 MAP |
1359 | return sd_bus_message_read( |
1360 | message, | |
1361 | "(ssssssouso)", | |
1362 | &u->id, | |
1363 | &u->description, | |
1364 | &u->load_state, | |
1365 | &u->active_state, | |
1366 | &u->sub_state, | |
1367 | &u->following, | |
1368 | &u->unit_path, | |
1369 | &u->job_id, | |
1370 | &u->job_type, | |
1371 | &u->job_path); | |
1372 | } | |
ebcf1f97 | 1373 | |
df31a6c0 LP |
1374 | int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment) { |
1375 | const char *eq, *field; | |
1376 | int r; | |
1377 | ||
1378 | assert(m); | |
1379 | assert(assignment); | |
1380 | ||
1381 | eq = strchr(assignment, '='); | |
1382 | if (!eq) { | |
1383 | log_error("Not an assignment: %s", assignment); | |
1384 | return -EINVAL; | |
1385 | } | |
1386 | ||
1387 | field = strndupa(assignment, eq - assignment); | |
1388 | eq ++; | |
1389 | ||
b2f8b02e LP |
1390 | if (streq(field, "CPUQuota")) { |
1391 | ||
1392 | if (isempty(eq)) { | |
1393 | ||
1394 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, "CPUQuotaPerSecUSec"); | |
1395 | if (r < 0) | |
1396 | return bus_log_create_error(r); | |
1397 | ||
3a43da28 | 1398 | r = sd_bus_message_append(m, "v", "t", USEC_INFINITY); |
b2f8b02e LP |
1399 | |
1400 | } else if (endswith(eq, "%")) { | |
1401 | double percent; | |
1402 | ||
1403 | if (sscanf(eq, "%lf%%", &percent) != 1 || percent <= 0) { | |
1404 | log_error("CPU quota '%s' invalid.", eq); | |
1405 | return -EINVAL; | |
1406 | } | |
1407 | ||
1408 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, "CPUQuotaPerSecUSec"); | |
1409 | if (r < 0) | |
1410 | return bus_log_create_error(r); | |
1411 | ||
1412 | r = sd_bus_message_append(m, "v", "t", (usec_t) percent * USEC_PER_SEC / 100); | |
1413 | } else { | |
9a054909 | 1414 | log_error("CPU quota needs to be in percent."); |
b2f8b02e LP |
1415 | return -EINVAL; |
1416 | } | |
1417 | ||
b2f8b02e LP |
1418 | if (r < 0) |
1419 | return bus_log_create_error(r); | |
1420 | ||
1421 | return 0; | |
ceb728cf NC |
1422 | } else if (streq(field, "EnvironmentFile")) { |
1423 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, "EnvironmentFiles"); | |
1424 | if (r < 0) | |
1425 | return r; | |
1426 | ||
1427 | r = sd_bus_message_append(m, "v", "a(sb)", 1, | |
1428 | eq[0] == '-' ? eq + 1 : eq, | |
1429 | eq[0] == '-'); | |
1430 | if (r < 0) | |
1431 | return r; | |
1432 | return 0; | |
b2f8b02e LP |
1433 | } |
1434 | ||
df31a6c0 LP |
1435 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); |
1436 | if (r < 0) | |
1437 | return bus_log_create_error(r); | |
1438 | ||
e567439e | 1439 | if (STR_IN_SET(field, |
03a7b521 | 1440 | "CPUAccounting", "MemoryAccounting", "BlockIOAccounting", "TasksAccounting", |
8bed4cbc | 1441 | "SendSIGHUP", "SendSIGKILL", "WakeSystem", "DefaultDependencies", |
b9c50073 | 1442 | "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "RemainAfterExit", |
047d9933 EV |
1443 | "PrivateTmp", "PrivateDevices", "PrivateNetwork", "NoNewPrivileges", |
1444 | "SyslogLevelPrefix")) { | |
df31a6c0 LP |
1445 | |
1446 | r = parse_boolean(eq); | |
1447 | if (r < 0) { | |
1448 | log_error("Failed to parse boolean assignment %s.", assignment); | |
1449 | return -EINVAL; | |
1450 | } | |
1451 | ||
1452 | r = sd_bus_message_append(m, "v", "b", r); | |
1453 | ||
1454 | } else if (streq(field, "MemoryLimit")) { | |
59f448cf | 1455 | uint64_t bytes; |
df31a6c0 | 1456 | |
03a7b521 LP |
1457 | if (isempty(eq) || streq(eq, "infinity")) |
1458 | bytes = (uint64_t) -1; | |
1459 | else { | |
1460 | r = parse_size(eq, 1024, &bytes); | |
1461 | if (r < 0) { | |
1462 | log_error("Failed to parse bytes specification %s", assignment); | |
1463 | return -EINVAL; | |
1464 | } | |
df31a6c0 LP |
1465 | } |
1466 | ||
59f448cf | 1467 | r = sd_bus_message_append(m, "v", "t", bytes); |
df31a6c0 | 1468 | |
03a7b521 LP |
1469 | } else if (streq(field, "TasksMax")) { |
1470 | uint64_t n; | |
1471 | ||
1472 | if (isempty(eq) || streq(eq, "infinity")) | |
1473 | n = (uint64_t) -1; | |
1474 | else { | |
1475 | r = safe_atou64(eq, &n); | |
1476 | if (r < 0) { | |
1477 | log_error("Failed to parse maximum tasks specification %s", assignment); | |
1478 | return -EINVAL; | |
1479 | } | |
1480 | } | |
1481 | ||
1482 | r = sd_bus_message_append(m, "v", "t", n); | |
1483 | ||
d53d9474 LP |
1484 | } else if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) { |
1485 | uint64_t u; | |
1486 | ||
1487 | r = cg_cpu_shares_parse(eq, &u); | |
1488 | if (r < 0) { | |
1489 | log_error("Failed to parse %s value %s.", field, eq); | |
1490 | return -EINVAL; | |
1491 | } | |
1492 | ||
1493 | r = sd_bus_message_append(m, "v", "t", u); | |
1494 | ||
1495 | } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) { | |
df31a6c0 LP |
1496 | uint64_t u; |
1497 | ||
d53d9474 | 1498 | r = cg_cpu_shares_parse(eq, &u); |
df31a6c0 LP |
1499 | if (r < 0) { |
1500 | log_error("Failed to parse %s value %s.", field, eq); | |
1501 | return -EINVAL; | |
1502 | } | |
1503 | ||
1504 | r = sd_bus_message_append(m, "v", "t", u); | |
1505 | ||
8bed4cbc LP |
1506 | } else if (STR_IN_SET(field, |
1507 | "User", "Group", "DevicePolicy", "KillMode", | |
1508 | "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath", | |
1509 | "StandardInput", "StandardOutput", "StandardError", | |
602b8355 | 1510 | "Description", "Slice", "Type", "WorkingDirectory", |
de53c417 | 1511 | "RootDirectory", "SyslogIdentifier")) |
df31a6c0 LP |
1512 | r = sd_bus_message_append(m, "v", "s", eq); |
1513 | ||
a8a13575 EV |
1514 | else if (streq(field, "SyslogLevel")) { |
1515 | int level; | |
1516 | ||
1517 | level = log_level_from_string(eq); | |
1518 | if (level < 0) { | |
1519 | log_error("Failed to parse %s value %s.", field, eq); | |
1520 | return -EINVAL; | |
1521 | } | |
1522 | ||
1523 | r = sd_bus_message_append(m, "v", "i", level); | |
1524 | ||
460ed929 EV |
1525 | } else if (streq(field, "SyslogFacility")) { |
1526 | int facility; | |
1527 | ||
1528 | facility = log_facility_unshifted_from_string(eq); | |
1529 | if (facility < 0) { | |
1530 | log_error("Failed to parse %s value %s.", field, eq); | |
1531 | return -EINVAL; | |
1532 | } | |
1533 | ||
1534 | r = sd_bus_message_append(m, "v", "i", facility); | |
1535 | ||
a8a13575 | 1536 | } else if (streq(field, "DeviceAllow")) { |
df31a6c0 LP |
1537 | |
1538 | if (isempty(eq)) | |
1539 | r = sd_bus_message_append(m, "v", "a(ss)", 0); | |
1540 | else { | |
1541 | const char *path, *rwm, *e; | |
1542 | ||
1543 | e = strchr(eq, ' '); | |
1544 | if (e) { | |
1545 | path = strndupa(eq, e - eq); | |
1546 | rwm = e+1; | |
1547 | } else { | |
1548 | path = eq; | |
1549 | rwm = ""; | |
1550 | } | |
1551 | ||
1552 | if (!path_startswith(path, "/dev")) { | |
1553 | log_error("%s is not a device file in /dev.", path); | |
1554 | return -EINVAL; | |
1555 | } | |
1556 | ||
1557 | r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm); | |
1558 | } | |
1559 | ||
1560 | } else if (STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { | |
1561 | ||
1562 | if (isempty(eq)) | |
1563 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
1564 | else { | |
1565 | const char *path, *bandwidth, *e; | |
59f448cf | 1566 | uint64_t bytes; |
df31a6c0 LP |
1567 | |
1568 | e = strchr(eq, ' '); | |
1569 | if (e) { | |
1570 | path = strndupa(eq, e - eq); | |
1571 | bandwidth = e+1; | |
1572 | } else { | |
1573 | log_error("Failed to parse %s value %s.", field, eq); | |
1574 | return -EINVAL; | |
1575 | } | |
1576 | ||
1577 | if (!path_startswith(path, "/dev")) { | |
1578 | log_error("%s is not a device file in /dev.", path); | |
1579 | return -EINVAL; | |
1580 | } | |
1581 | ||
1582 | r = parse_size(bandwidth, 1000, &bytes); | |
1583 | if (r < 0) { | |
1584 | log_error("Failed to parse byte value %s.", bandwidth); | |
1585 | return -EINVAL; | |
1586 | } | |
1587 | ||
59f448cf | 1588 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes); |
df31a6c0 LP |
1589 | } |
1590 | ||
1591 | } else if (streq(field, "BlockIODeviceWeight")) { | |
1592 | ||
1593 | if (isempty(eq)) | |
1594 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
1595 | else { | |
1596 | const char *path, *weight, *e; | |
1597 | uint64_t u; | |
1598 | ||
1599 | e = strchr(eq, ' '); | |
1600 | if (e) { | |
1601 | path = strndupa(eq, e - eq); | |
1602 | weight = e+1; | |
1603 | } else { | |
1604 | log_error("Failed to parse %s value %s.", field, eq); | |
1605 | return -EINVAL; | |
1606 | } | |
1607 | ||
1608 | if (!path_startswith(path, "/dev")) { | |
1609 | log_error("%s is not a device file in /dev.", path); | |
1610 | return -EINVAL; | |
1611 | } | |
1612 | ||
1613 | r = safe_atou64(weight, &u); | |
1614 | if (r < 0) { | |
1615 | log_error("Failed to parse %s value %s.", field, weight); | |
1616 | return -EINVAL; | |
1617 | } | |
1618 | r = sd_bus_message_append(m, "v", "a(st)", path, u); | |
1619 | } | |
1620 | ||
d584f638 LP |
1621 | } else if (rlimit_from_string(field) >= 0) { |
1622 | uint64_t rl; | |
1623 | ||
1624 | if (streq(eq, "infinity")) | |
1625 | rl = (uint64_t) -1; | |
1626 | else { | |
1627 | r = safe_atou64(eq, &rl); | |
1628 | if (r < 0) { | |
1629 | log_error("Invalid resource limit: %s", eq); | |
1630 | return -EINVAL; | |
1631 | } | |
1632 | } | |
1633 | ||
1634 | r = sd_bus_message_append(m, "v", "t", rl); | |
1635 | ||
e567439e LP |
1636 | } else if (streq(field, "Nice")) { |
1637 | int32_t i; | |
1638 | ||
1639 | r = safe_atoi32(eq, &i); | |
1640 | if (r < 0) { | |
1641 | log_error("Failed to parse %s value %s.", field, eq); | |
1642 | return -EINVAL; | |
1643 | } | |
1644 | ||
1645 | r = sd_bus_message_append(m, "v", "i", i); | |
1646 | ||
1647 | } else if (streq(field, "Environment")) { | |
e9876fc9 | 1648 | const char *p; |
e567439e | 1649 | |
e9876fc9 EV |
1650 | r = sd_bus_message_open_container(m, 'v', "as"); |
1651 | if (r < 0) | |
1652 | return bus_log_create_error(r); | |
1653 | ||
1654 | r = sd_bus_message_open_container(m, 'a', "s"); | |
1655 | if (r < 0) | |
1656 | return bus_log_create_error(r); | |
1657 | ||
1658 | p = eq; | |
1659 | ||
1660 | for (;;) { | |
1661 | _cleanup_free_ char *word = NULL; | |
1662 | ||
1663 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); | |
1664 | if (r < 0) { | |
1665 | log_error("Failed to parse Environment value %s", eq); | |
1666 | return -EINVAL; | |
1667 | } | |
1668 | if (r == 0) | |
1669 | break; | |
1670 | ||
1671 | if (!env_assignment_is_valid(word)) { | |
1672 | log_error("Invalid environment assignment: %s", eq); | |
1673 | return -EINVAL; | |
1674 | } | |
1675 | ||
1676 | r = sd_bus_message_append_basic(m, 's', word); | |
1677 | if (r < 0) | |
1678 | return bus_log_create_error(r); | |
1679 | } | |
1680 | ||
1681 | r = sd_bus_message_close_container(m); | |
1682 | if (r < 0) | |
1683 | return bus_log_create_error(r); | |
1684 | ||
1685 | r = sd_bus_message_close_container(m); | |
e567439e LP |
1686 | |
1687 | } else if (streq(field, "KillSignal")) { | |
1688 | int sig; | |
1689 | ||
1690 | sig = signal_from_string_try_harder(eq); | |
1691 | if (sig < 0) { | |
1692 | log_error("Failed to parse %s value %s.", field, eq); | |
1693 | return -EINVAL; | |
1694 | } | |
1695 | ||
1696 | r = sd_bus_message_append(m, "v", "i", sig); | |
1697 | ||
4c213d6c WC |
1698 | } else if (streq(field, "AccuracySec")) { |
1699 | usec_t u; | |
1700 | ||
1701 | r = parse_sec(eq, &u); | |
1702 | if (r < 0) { | |
1703 | log_error("Failed to parse %s value %s", field, eq); | |
1704 | return -EINVAL; | |
1705 | } | |
1706 | ||
1707 | r = sd_bus_message_append(m, "v", "t", u); | |
f1db3327 EV |
1708 | } else if (streq(field, "TimerSlackNSec")) { |
1709 | nsec_t n; | |
4c213d6c | 1710 | |
f1db3327 EV |
1711 | r = parse_nsec(eq, &n); |
1712 | if (r < 0) { | |
1713 | log_error("Failed to parse %s value %s", field, eq); | |
1714 | return -EINVAL; | |
1715 | } | |
1716 | ||
1717 | r = sd_bus_message_append(m, "v", "t", n); | |
6b862936 EV |
1718 | } else if (streq(field, "OOMScoreAdjust")) { |
1719 | int oa; | |
1720 | ||
1721 | r = safe_atoi(eq, &oa); | |
1722 | if (r < 0) { | |
1723 | log_error("Failed to parse %s value %s", field, eq); | |
1724 | return -EINVAL; | |
1725 | } | |
1726 | ||
1727 | if (!oom_score_adjust_is_valid(oa)) { | |
1728 | log_error("OOM score adjust value out of range"); | |
1729 | return -EINVAL; | |
1730 | } | |
1731 | ||
1732 | r = sd_bus_message_append(m, "v", "i", oa); | |
08596068 EV |
1733 | } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories")) { |
1734 | const char *p; | |
1735 | ||
1736 | r = sd_bus_message_open_container(m, 'v', "as"); | |
1737 | if (r < 0) | |
1738 | return bus_log_create_error(r); | |
1739 | ||
1740 | r = sd_bus_message_open_container(m, 'a', "s"); | |
1741 | if (r < 0) | |
1742 | return bus_log_create_error(r); | |
1743 | ||
1744 | p = eq; | |
1745 | ||
1746 | for (;;) { | |
1747 | _cleanup_free_ char *word = NULL; | |
1748 | int offset; | |
1749 | ||
1750 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
1751 | if (r < 0) { | |
1752 | log_error("Failed to parse %s value %s", field, eq); | |
1753 | return -EINVAL; | |
1754 | } | |
1755 | if (r == 0) | |
1756 | break; | |
1757 | ||
1758 | if (!utf8_is_valid(word)) { | |
1759 | log_error("Failed to parse %s value %s", field, eq); | |
1760 | return -EINVAL; | |
1761 | } | |
1762 | ||
1763 | offset = word[0] == '-'; | |
1764 | if (!path_is_absolute(word + offset)) { | |
1765 | log_error("Failed to parse %s value %s", field, eq); | |
1766 | return -EINVAL; | |
1767 | } | |
1768 | ||
1769 | path_kill_slashes(word + offset); | |
1770 | ||
1771 | r = sd_bus_message_append_basic(m, 's', word); | |
1772 | if (r < 0) | |
1773 | return bus_log_create_error(r); | |
1774 | } | |
1775 | ||
1776 | r = sd_bus_message_close_container(m); | |
1777 | if (r < 0) | |
1778 | return bus_log_create_error(r); | |
1779 | ||
1780 | r = sd_bus_message_close_container(m); | |
1781 | ||
df31a6c0 LP |
1782 | } else { |
1783 | log_error("Unknown assignment %s.", assignment); | |
1784 | return -EINVAL; | |
1785 | } | |
1786 | ||
1787 | if (r < 0) | |
1788 | return bus_log_create_error(r); | |
1789 | ||
1790 | return 0; | |
1791 | } | |
ebd011d9 LP |
1792 | |
1793 | typedef struct BusWaitForJobs { | |
1794 | sd_bus *bus; | |
1795 | Set *jobs; | |
1796 | ||
1797 | char *name; | |
1798 | char *result; | |
1799 | ||
1800 | sd_bus_slot *slot_job_removed; | |
1801 | sd_bus_slot *slot_disconnected; | |
1802 | } BusWaitForJobs; | |
1803 | ||
19070062 | 1804 | static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
ebd011d9 LP |
1805 | assert(m); |
1806 | ||
1807 | log_error("Warning! D-Bus connection terminated."); | |
19070062 | 1808 | sd_bus_close(sd_bus_message_get_bus(m)); |
ebd011d9 LP |
1809 | |
1810 | return 0; | |
1811 | } | |
1812 | ||
19070062 | 1813 | static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
ebd011d9 LP |
1814 | const char *path, *unit, *result; |
1815 | BusWaitForJobs *d = userdata; | |
1816 | uint32_t id; | |
1817 | char *found; | |
1818 | int r; | |
1819 | ||
ebd011d9 LP |
1820 | assert(m); |
1821 | assert(d); | |
1822 | ||
1823 | r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result); | |
1824 | if (r < 0) { | |
1825 | bus_log_parse_error(r); | |
1826 | return 0; | |
1827 | } | |
1828 | ||
1829 | found = set_remove(d->jobs, (char*) path); | |
1830 | if (!found) | |
1831 | return 0; | |
1832 | ||
1833 | free(found); | |
1834 | ||
1835 | if (!isempty(result)) | |
1836 | d->result = strdup(result); | |
1837 | ||
1838 | if (!isempty(unit)) | |
1839 | d->name = strdup(unit); | |
1840 | ||
1841 | return 0; | |
1842 | } | |
1843 | ||
1844 | void bus_wait_for_jobs_free(BusWaitForJobs *d) { | |
1845 | if (!d) | |
1846 | return; | |
1847 | ||
1848 | set_free_free(d->jobs); | |
1849 | ||
1850 | sd_bus_slot_unref(d->slot_disconnected); | |
1851 | sd_bus_slot_unref(d->slot_job_removed); | |
1852 | ||
1853 | sd_bus_unref(d->bus); | |
1854 | ||
1855 | free(d->name); | |
1856 | free(d->result); | |
1857 | ||
1858 | free(d); | |
1859 | } | |
1860 | ||
1861 | int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) { | |
1862 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL; | |
1863 | int r; | |
1864 | ||
1865 | assert(bus); | |
1866 | assert(ret); | |
1867 | ||
1868 | d = new0(BusWaitForJobs, 1); | |
1869 | if (!d) | |
1870 | return -ENOMEM; | |
1871 | ||
1872 | d->bus = sd_bus_ref(bus); | |
1873 | ||
b798e7ba LP |
1874 | /* When we are a bus client we match by sender. Direct |
1875 | * connections OTOH have no initialized sender field, and | |
1876 | * hence we ignore the sender then */ | |
ebd011d9 LP |
1877 | r = sd_bus_add_match( |
1878 | bus, | |
1879 | &d->slot_job_removed, | |
b798e7ba | 1880 | bus->bus_client ? |
ebd011d9 LP |
1881 | "type='signal'," |
1882 | "sender='org.freedesktop.systemd1'," | |
1883 | "interface='org.freedesktop.systemd1.Manager'," | |
1884 | "member='JobRemoved'," | |
b798e7ba LP |
1885 | "path='/org/freedesktop/systemd1'" : |
1886 | "type='signal'," | |
1887 | "interface='org.freedesktop.systemd1.Manager'," | |
1888 | "member='JobRemoved'," | |
ebd011d9 LP |
1889 | "path='/org/freedesktop/systemd1'", |
1890 | match_job_removed, d); | |
1891 | if (r < 0) | |
1892 | return r; | |
1893 | ||
1894 | r = sd_bus_add_match( | |
1895 | bus, | |
1896 | &d->slot_disconnected, | |
1897 | "type='signal'," | |
1898 | "sender='org.freedesktop.DBus.Local'," | |
1899 | "interface='org.freedesktop.DBus.Local'," | |
1900 | "member='Disconnected'", | |
1901 | match_disconnected, d); | |
1902 | if (r < 0) | |
1903 | return r; | |
1904 | ||
1905 | *ret = d; | |
1906 | d = NULL; | |
1907 | ||
1908 | return 0; | |
1909 | } | |
1910 | ||
1911 | static int bus_process_wait(sd_bus *bus) { | |
1912 | int r; | |
1913 | ||
1914 | for (;;) { | |
1915 | r = sd_bus_process(bus, NULL); | |
1916 | if (r < 0) | |
1917 | return r; | |
1918 | if (r > 0) | |
1919 | return 0; | |
1920 | ||
1921 | r = sd_bus_wait(bus, (uint64_t) -1); | |
1922 | if (r < 0) | |
1923 | return r; | |
1924 | } | |
1925 | } | |
1926 | ||
d5cad221 MS |
1927 | static int bus_job_get_service_result(BusWaitForJobs *d, char **result) { |
1928 | _cleanup_free_ char *dbus_path = NULL; | |
1929 | ||
1930 | assert(d); | |
1931 | assert(d->name); | |
1932 | assert(result); | |
1933 | ||
1934 | dbus_path = unit_dbus_path_from_name(d->name); | |
1935 | if (!dbus_path) | |
1936 | return -ENOMEM; | |
1937 | ||
1938 | return sd_bus_get_property_string(d->bus, | |
1939 | "org.freedesktop.systemd1", | |
1940 | dbus_path, | |
1941 | "org.freedesktop.systemd1.Service", | |
1942 | "Result", | |
1943 | NULL, | |
1944 | result); | |
1945 | } | |
1946 | ||
1947 | static const struct { | |
1948 | const char *result, *explanation; | |
1949 | } explanations [] = { | |
a61cc460 ZJS |
1950 | { "resources", "a configured resource limit was exceeded" }, |
1951 | { "timeout", "a timeout was exceeded" }, | |
1952 | { "exit-code", "the control process exited with error code" }, | |
1953 | { "signal", "a fatal signal was delivered to the control process" }, | |
1954 | { "core-dump", "a fatal signal was delivered causing the control process to dump core" }, | |
1955 | { "watchdog", "the service failed to send watchdog ping" }, | |
1956 | { "start-limit", "start of the service was attempted too often" } | |
d5cad221 MS |
1957 | }; |
1958 | ||
1959 | static void log_job_error_with_service_result(const char* service, const char *result) { | |
d5cad221 MS |
1960 | _cleanup_free_ char *service_shell_quoted = NULL; |
1961 | ||
1962 | assert(service); | |
d5cad221 MS |
1963 | |
1964 | service_shell_quoted = shell_maybe_quote(service); | |
1965 | ||
373a99e4 LP |
1966 | if (!isempty(result)) { |
1967 | unsigned i; | |
d5cad221 | 1968 | |
373a99e4 LP |
1969 | for (i = 0; i < ELEMENTSOF(explanations); ++i) |
1970 | if (streq(result, explanations[i].result)) | |
1971 | break; | |
1972 | ||
1973 | if (i < ELEMENTSOF(explanations)) { | |
1974 | log_error("Job for %s failed because %s. See \"systemctl status %s\" and \"journalctl -xe\" for details.\n", | |
1975 | service, | |
1976 | explanations[i].explanation, | |
1977 | strna(service_shell_quoted)); | |
d5cad221 | 1978 | |
373a99e4 LP |
1979 | goto finish; |
1980 | } | |
1981 | } | |
1982 | ||
1983 | log_error("Job for %s failed. See \"systemctl status %s\" and \"journalctl -xe\" for details.\n", | |
1984 | service, | |
1985 | strna(service_shell_quoted)); | |
1986 | ||
1987 | finish: | |
d5cad221 MS |
1988 | /* For some results maybe additional explanation is required */ |
1989 | if (streq_ptr(result, "start-limit")) | |
a61cc460 | 1990 | log_info("To force a start use \"systemctl reset-failed %1$s\" followed by \"systemctl start %1$s\" again.", |
d5cad221 MS |
1991 | strna(service_shell_quoted)); |
1992 | } | |
1993 | ||
ebd011d9 LP |
1994 | static int check_wait_response(BusWaitForJobs *d, bool quiet) { |
1995 | int r = 0; | |
1996 | ||
1997 | assert(d->result); | |
1998 | ||
1999 | if (!quiet) { | |
2000 | if (streq(d->result, "canceled")) | |
2001 | log_error("Job for %s canceled.", strna(d->name)); | |
2002 | else if (streq(d->result, "timeout")) | |
2003 | log_error("Job for %s timed out.", strna(d->name)); | |
2004 | else if (streq(d->result, "dependency")) | |
2005 | log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name)); | |
2006 | else if (streq(d->result, "invalid")) | |
2007 | log_error("Job for %s invalid.", strna(d->name)); | |
2008 | else if (streq(d->result, "assert")) | |
2009 | log_error("Assertion failed on job for %s.", strna(d->name)); | |
2010 | else if (streq(d->result, "unsupported")) | |
2011 | log_error("Operation on or unit type of %s not supported on this system.", strna(d->name)); | |
2012 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) { | |
d5cad221 MS |
2013 | if (d->name) { |
2014 | int q; | |
2015 | _cleanup_free_ char *result = NULL; | |
ebd011d9 | 2016 | |
d5cad221 MS |
2017 | q = bus_job_get_service_result(d, &result); |
2018 | if (q < 0) | |
2019 | log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name); | |
ebd011d9 | 2020 | |
d5cad221 MS |
2021 | log_job_error_with_service_result(d->name, result); |
2022 | } else | |
2023 | log_error("Job failed. See \"journalctl -xe\" for details."); | |
ebd011d9 LP |
2024 | } |
2025 | } | |
2026 | ||
2027 | if (streq(d->result, "canceled")) | |
2028 | r = -ECANCELED; | |
2029 | else if (streq(d->result, "timeout")) | |
2030 | r = -ETIME; | |
2031 | else if (streq(d->result, "dependency")) | |
2032 | r = -EIO; | |
2033 | else if (streq(d->result, "invalid")) | |
2034 | r = -ENOEXEC; | |
2035 | else if (streq(d->result, "assert")) | |
2036 | r = -EPROTO; | |
2037 | else if (streq(d->result, "unsupported")) | |
15411c0c | 2038 | r = -EOPNOTSUPP; |
ebd011d9 LP |
2039 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) |
2040 | r = -EIO; | |
2041 | ||
2042 | return r; | |
2043 | } | |
2044 | ||
2045 | int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet) { | |
2046 | int r = 0; | |
2047 | ||
2048 | assert(d); | |
2049 | ||
2050 | while (!set_isempty(d->jobs)) { | |
2051 | int q; | |
2052 | ||
2053 | q = bus_process_wait(d->bus); | |
2054 | if (q < 0) | |
2055 | return log_error_errno(q, "Failed to wait for response: %m"); | |
2056 | ||
2057 | if (d->result) { | |
2058 | q = check_wait_response(d, quiet); | |
2059 | /* Return the first error as it is most likely to be | |
2060 | * meaningful. */ | |
2061 | if (q < 0 && r == 0) | |
2062 | r = q; | |
2063 | ||
2064 | log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name)); | |
2065 | } | |
2066 | ||
a1e58e8e LP |
2067 | d->name = mfree(d->name); |
2068 | d->result = mfree(d->result); | |
ebd011d9 LP |
2069 | } |
2070 | ||
2071 | return r; | |
2072 | } | |
2073 | ||
2074 | int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) { | |
2075 | int r; | |
2076 | ||
2077 | assert(d); | |
2078 | ||
2079 | r = set_ensure_allocated(&d->jobs, &string_hash_ops); | |
2080 | if (r < 0) | |
2081 | return r; | |
2082 | ||
2083 | return set_put_strdup(d->jobs, path); | |
2084 | } | |
d8f52ed2 | 2085 | |
de158ed2 LP |
2086 | int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) { |
2087 | int r; | |
2088 | ||
2089 | r = bus_wait_for_jobs_add(d, path); | |
2090 | if (r < 0) | |
2091 | return log_oom(); | |
2092 | ||
2093 | return bus_wait_for_jobs(d, quiet); | |
2094 | } | |
2095 | ||
57ab2eab | 2096 | int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) { |
d8f52ed2 LP |
2097 | const char *type, *path, *source; |
2098 | int r; | |
2099 | ||
2100 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)"); | |
2101 | if (r < 0) | |
2102 | return bus_log_parse_error(r); | |
2103 | ||
2104 | while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) { | |
2105 | if (!quiet) { | |
2106 | if (streq(type, "symlink")) | |
2107 | log_info("Created symlink from %s to %s.", path, source); | |
2108 | else | |
2109 | log_info("Removed symlink %s.", path); | |
2110 | } | |
57ab2eab JS |
2111 | |
2112 | r = unit_file_changes_add(changes, n_changes, streq(type, "symlink") ? UNIT_FILE_SYMLINK : UNIT_FILE_UNLINK, path, source); | |
2113 | if (r < 0) | |
2114 | return r; | |
d8f52ed2 LP |
2115 | } |
2116 | if (r < 0) | |
2117 | return bus_log_parse_error(r); | |
2118 | ||
2119 | r = sd_bus_message_exit_container(m); | |
2120 | if (r < 0) | |
2121 | return bus_log_parse_error(r); | |
2122 | ||
2123 | return 0; | |
2124 | } | |
98a4c30b DH |
2125 | |
2126 | /** | |
2127 | * bus_path_encode_unique() - encode unique object path | |
2128 | * @b: bus connection or NULL | |
2129 | * @prefix: object path prefix | |
2130 | * @sender_id: unique-name of client, or NULL | |
2131 | * @external_id: external ID to be chosen by client, or NULL | |
2132 | * @ret_path: storage for encoded object path pointer | |
2133 | * | |
2134 | * Whenever we provide a bus API that allows clients to create and manage | |
2135 | * server-side objects, we need to provide a unique name for these objects. If | |
2136 | * we let the server choose the name, we suffer from a race condition: If a | |
2137 | * client creates an object asynchronously, it cannot destroy that object until | |
2138 | * it received the method reply. It cannot know the name of the new object, | |
2139 | * thus, it cannot destroy it. Furthermore, it enforces a round-trip. | |
2140 | * | |
2141 | * Therefore, many APIs allow the client to choose the unique name for newly | |
2142 | * created objects. There're two problems to solve, though: | |
2143 | * 1) Object names are usually defined via dbus object paths, which are | |
2144 | * usually globally namespaced. Therefore, multiple clients must be able | |
2145 | * to choose unique object names without interference. | |
2146 | * 2) If multiple libraries share the same bus connection, they must be | |
2147 | * able to choose unique object names without interference. | |
2148 | * The first problem is solved easily by prefixing a name with the | |
2149 | * unique-bus-name of a connection. The server side must enforce this and | |
2150 | * reject any other name. The second problem is solved by providing unique | |
2151 | * suffixes from within sd-bus. | |
2152 | * | |
2153 | * This helper allows clients to create unique object-paths. It uses the | |
2154 | * template '/prefix/sender_id/external_id' and returns the new path in | |
2155 | * @ret_path (must be freed by the caller). | |
2156 | * If @sender_id is NULL, the unique-name of @b is used. If @external_id is | |
2157 | * NULL, this function allocates a unique suffix via @b (by requesting a new | |
2158 | * cookie). If both @sender_id and @external_id are given, @b can be passed as | |
2159 | * NULL. | |
2160 | * | |
2161 | * Returns: 0 on success, negative error code on failure. | |
2162 | */ | |
2163 | int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path) { | |
2164 | _cleanup_free_ char *sender_label = NULL, *external_label = NULL; | |
2165 | char external_buf[DECIMAL_STR_MAX(uint64_t)], *p; | |
2166 | int r; | |
2167 | ||
2168 | assert_return(b || (sender_id && external_id), -EINVAL); | |
2169 | assert_return(object_path_is_valid(prefix), -EINVAL); | |
2170 | assert_return(ret_path, -EINVAL); | |
2171 | ||
2172 | if (!sender_id) { | |
2173 | r = sd_bus_get_unique_name(b, &sender_id); | |
2174 | if (r < 0) | |
2175 | return r; | |
2176 | } | |
2177 | ||
2178 | if (!external_id) { | |
2179 | xsprintf(external_buf, "%"PRIu64, ++b->cookie); | |
2180 | external_id = external_buf; | |
2181 | } | |
2182 | ||
2183 | sender_label = bus_label_escape(sender_id); | |
2184 | if (!sender_label) | |
2185 | return -ENOMEM; | |
2186 | ||
2187 | external_label = bus_label_escape(external_id); | |
2188 | if (!external_label) | |
2189 | return -ENOMEM; | |
2190 | ||
2191 | p = strjoin(prefix, "/", sender_label, "/", external_label, NULL); | |
2192 | if (!p) | |
2193 | return -ENOMEM; | |
2194 | ||
2195 | *ret_path = p; | |
2196 | return 0; | |
2197 | } | |
2198 | ||
2199 | /** | |
2200 | * bus_path_decode_unique() - decode unique object path | |
2201 | * @path: object path to decode | |
2202 | * @prefix: object path prefix | |
2203 | * @ret_sender: output parameter for sender-id label | |
2204 | * @ret_external: output parameter for external-id label | |
2205 | * | |
2206 | * This does the reverse of bus_path_encode_unique() (see its description for | |
2207 | * details). Both trailing labels, sender-id and external-id, are unescaped and | |
2208 | * returned in the given output parameters (the caller must free them). | |
2209 | * | |
2210 | * Note that this function returns 0 if the path does not match the template | |
2211 | * (see bus_path_encode_unique()), 1 if it matched. | |
2212 | * | |
2213 | * Returns: Negative error code on failure, 0 if the given object path does not | |
2214 | * match the template (return parameters are set to NULL), 1 if it was | |
2215 | * parsed successfully (return parameters contain allocated labels). | |
2216 | */ | |
2217 | int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external) { | |
2218 | const char *p, *q; | |
2219 | char *sender, *external; | |
2220 | ||
2221 | assert(object_path_is_valid(path)); | |
2222 | assert(object_path_is_valid(prefix)); | |
2223 | assert(ret_sender); | |
2224 | assert(ret_external); | |
2225 | ||
2226 | p = object_path_startswith(path, prefix); | |
2227 | if (!p) { | |
2228 | *ret_sender = NULL; | |
2229 | *ret_external = NULL; | |
2230 | return 0; | |
2231 | } | |
2232 | ||
2233 | q = strchr(p, '/'); | |
2234 | if (!q) { | |
2235 | *ret_sender = NULL; | |
2236 | *ret_external = NULL; | |
2237 | return 0; | |
2238 | } | |
2239 | ||
2240 | sender = bus_label_unescape_n(p, q - p); | |
2241 | external = bus_label_unescape(q + 1); | |
2242 | if (!sender || !external) { | |
2243 | free(sender); | |
2244 | free(external); | |
2245 | return -ENOMEM; | |
2246 | } | |
2247 | ||
2248 | *ret_sender = sender; | |
2249 | *ret_external = external; | |
2250 | return 1; | |
2251 | } | |
057171ef DH |
2252 | |
2253 | bool is_kdbus_wanted(void) { | |
2254 | _cleanup_free_ char *value = NULL; | |
2255 | #ifdef ENABLE_KDBUS | |
2256 | const bool configured = true; | |
2257 | #else | |
2258 | const bool configured = false; | |
2259 | #endif | |
2260 | ||
2261 | int r; | |
2262 | ||
2263 | if (get_proc_cmdline_key("kdbus", NULL) > 0) | |
2264 | return true; | |
2265 | ||
2266 | r = get_proc_cmdline_key("kdbus=", &value); | |
2267 | if (r <= 0) | |
2268 | return configured; | |
2269 | ||
2270 | return parse_boolean(value) == 1; | |
2271 | } | |
2272 | ||
2273 | bool is_kdbus_available(void) { | |
2274 | _cleanup_close_ int fd = -1; | |
2275 | struct kdbus_cmd cmd = { .size = sizeof(cmd), .flags = KDBUS_FLAG_NEGOTIATE }; | |
2276 | ||
2277 | if (!is_kdbus_wanted()) | |
2278 | return false; | |
2279 | ||
2280 | fd = open("/sys/fs/kdbus/control", O_RDWR | O_CLOEXEC | O_NONBLOCK | O_NOCTTY); | |
2281 | if (fd < 0) | |
2282 | return false; | |
2283 | ||
2284 | return ioctl(fd, KDBUS_CMD_BUS_MAKE, &cmd) >= 0; | |
2285 | } | |
c9d031c3 EV |
2286 | |
2287 | int bus_property_get_rlimit( | |
2288 | sd_bus *bus, | |
2289 | const char *path, | |
2290 | const char *interface, | |
2291 | const char *property, | |
2292 | sd_bus_message *reply, | |
2293 | void *userdata, | |
2294 | sd_bus_error *error) { | |
2295 | ||
2296 | struct rlimit *rl; | |
2297 | uint64_t u; | |
2298 | rlim_t x; | |
2299 | ||
2300 | assert(bus); | |
2301 | assert(reply); | |
2302 | assert(userdata); | |
2303 | ||
2304 | rl = *(struct rlimit**) userdata; | |
2305 | if (rl) | |
2306 | x = rl->rlim_max; | |
2307 | else { | |
2308 | struct rlimit buf = {}; | |
2309 | int z; | |
2310 | ||
f6bcaf4c | 2311 | z = rlimit_from_string(strstr(property, "Limit")); |
c9d031c3 EV |
2312 | assert(z >= 0); |
2313 | ||
2314 | getrlimit(z, &buf); | |
2315 | x = buf.rlim_max; | |
2316 | } | |
2317 | ||
2318 | /* rlim_t might have different sizes, let's map | |
2319 | * RLIMIT_INFINITY to (uint64_t) -1, so that it is the same on | |
2320 | * all archs */ | |
2321 | u = x == RLIM_INFINITY ? (uint64_t) -1 : (uint64_t) x; | |
2322 | ||
2323 | return sd_bus_message_append(reply, "t", u); | |
2324 | } |