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