]>
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 | ||
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" | |
3ffd4af2 | 32 | #include "bus-util.h" |
d53d9474 | 33 | #include "cgroup-util.h" |
40ca29a1 | 34 | #include "def.h" |
e9876fc9 | 35 | #include "env-util.h" |
4f5dd394 | 36 | #include "escape.h" |
3ffd4af2 | 37 | #include "fd-util.h" |
d53d9474 | 38 | #include "macro.h" |
2bba9a57 | 39 | #include "missing.h" |
6bedfcbb | 40 | #include "parse-util.h" |
d53d9474 | 41 | #include "path-util.h" |
ee104e11 | 42 | #include "proc-cmdline.h" |
78f22b97 | 43 | #include "rlimit-util.h" |
ebd011d9 | 44 | #include "set.h" |
24882e06 | 45 | #include "signal-util.h" |
07630cea | 46 | #include "string-util.h" |
d53d9474 | 47 | #include "strv.h" |
7ccbd1ae | 48 | #include "syslog-util.h" |
d5cad221 | 49 | #include "unit-name.h" |
ee104e11 | 50 | #include "user-util.h" |
08596068 | 51 | #include "utf8.h" |
d53d9474 | 52 | #include "util.h" |
40ca29a1 | 53 | |
19070062 | 54 | static int name_owner_change_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
40ca29a1 LP |
55 | sd_event *e = userdata; |
56 | ||
40ca29a1 LP |
57 | assert(m); |
58 | assert(e); | |
59 | ||
19070062 | 60 | sd_bus_close(sd_bus_message_get_bus(m)); |
6203e07a | 61 | sd_event_exit(e, 0); |
b27adf35 | 62 | |
40ca29a1 LP |
63 | return 1; |
64 | } | |
65 | ||
6203e07a | 66 | int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name) { |
40ca29a1 | 67 | _cleanup_free_ char *match = NULL; |
11846aa7 | 68 | const char *unique; |
40ca29a1 LP |
69 | int r; |
70 | ||
71 | assert(e); | |
72 | assert(bus); | |
73 | assert(name); | |
74 | ||
6203e07a LP |
75 | /* We unregister the name here and then wait for the |
76 | * NameOwnerChanged signal for this event to arrive before we | |
77 | * quit. We do this in order to make sure that any queued | |
78 | * requests are still processed before we really exit. */ | |
79 | ||
11846aa7 | 80 | r = sd_bus_get_unique_name(bus, &unique); |
40ca29a1 LP |
81 | if (r < 0) |
82 | return r; | |
83 | ||
11846aa7 LP |
84 | r = asprintf(&match, |
85 | "sender='org.freedesktop.DBus'," | |
86 | "type='signal'," | |
87 | "interface='org.freedesktop.DBus'," | |
88 | "member='NameOwnerChanged'," | |
89 | "path='/org/freedesktop/DBus'," | |
90 | "arg0='%s'," | |
91 | "arg1='%s'," | |
92 | "arg2=''", name, unique); | |
93 | if (r < 0) | |
94 | return -ENOMEM; | |
95 | ||
19befb2d | 96 | r = sd_bus_add_match(bus, NULL, match, name_owner_change_callback, e); |
40ca29a1 LP |
97 | if (r < 0) |
98 | return r; | |
99 | ||
100 | r = sd_bus_release_name(bus, name); | |
101 | if (r < 0) | |
102 | return r; | |
103 | ||
40ca29a1 LP |
104 | return 0; |
105 | } | |
106 | ||
37224a5f LP |
107 | int bus_event_loop_with_idle( |
108 | sd_event *e, | |
109 | sd_bus *bus, | |
110 | const char *name, | |
111 | usec_t timeout, | |
112 | check_idle_t check_idle, | |
113 | void *userdata) { | |
40ca29a1 | 114 | bool exiting = false; |
6203e07a | 115 | int r, code; |
40ca29a1 LP |
116 | |
117 | assert(e); | |
118 | assert(bus); | |
119 | assert(name); | |
120 | ||
121 | for (;;) { | |
37224a5f LP |
122 | bool idle; |
123 | ||
40ca29a1 LP |
124 | r = sd_event_get_state(e); |
125 | if (r < 0) | |
126 | return r; | |
40ca29a1 LP |
127 | if (r == SD_EVENT_FINISHED) |
128 | break; | |
129 | ||
37224a5f LP |
130 | if (check_idle) |
131 | idle = check_idle(userdata); | |
132 | else | |
133 | idle = true; | |
134 | ||
135 | r = sd_event_run(e, exiting || !idle ? (uint64_t) -1 : timeout); | |
40ca29a1 LP |
136 | if (r < 0) |
137 | return r; | |
138 | ||
a8ba6cd1 | 139 | if (r == 0 && !exiting && idle) { |
b27adf35 LP |
140 | |
141 | r = sd_bus_try_close(bus); | |
142 | if (r == -EBUSY) | |
143 | continue; | |
144 | ||
430e21c2 LP |
145 | /* Fallback for dbus1 connections: we |
146 | * unregister the name and wait for the | |
147 | * response to come through for it */ | |
15411c0c | 148 | if (r == -EOPNOTSUPP) { |
430e21c2 LP |
149 | |
150 | /* Inform the service manager that we | |
151 | * are going down, so that it will | |
152 | * queue all further start requests, | |
153 | * instead of assuming we are already | |
154 | * running. */ | |
155 | sd_notify(false, "STOPPING=1"); | |
b27adf35 LP |
156 | |
157 | r = bus_async_unregister_and_exit(e, bus, name); | |
158 | if (r < 0) | |
159 | return r; | |
160 | ||
161 | exiting = true; | |
162 | continue; | |
163 | } | |
164 | ||
40ca29a1 LP |
165 | if (r < 0) |
166 | return r; | |
167 | ||
b27adf35 LP |
168 | sd_event_exit(e, 0); |
169 | break; | |
40ca29a1 LP |
170 | } |
171 | } | |
172 | ||
6203e07a LP |
173 | r = sd_event_get_exit_code(e, &code); |
174 | if (r < 0) | |
175 | return r; | |
176 | ||
177 | return code; | |
40ca29a1 LP |
178 | } |
179 | ||
5fd38859 DH |
180 | int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error) { |
181 | _cleanup_bus_message_unref_ sd_bus_message *rep = NULL; | |
182 | int r, has_owner = 0; | |
183 | ||
184 | assert(c); | |
185 | assert(name); | |
186 | ||
187 | r = sd_bus_call_method(c, | |
188 | "org.freedesktop.DBus", | |
189 | "/org/freedesktop/dbus", | |
190 | "org.freedesktop.DBus", | |
191 | "NameHasOwner", | |
192 | error, | |
193 | &rep, | |
194 | "s", | |
195 | name); | |
196 | if (r < 0) | |
197 | return r; | |
198 | ||
199 | r = sd_bus_message_read_basic(rep, 'b', &has_owner); | |
200 | if (r < 0) | |
201 | return sd_bus_error_set_errno(error, r); | |
202 | ||
203 | return has_owner; | |
204 | } | |
205 | ||
c529695e LP |
206 | static int check_good_user(sd_bus_message *m, uid_t good_user) { |
207 | _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; | |
208 | uid_t sender_uid; | |
209 | int r; | |
210 | ||
211 | assert(m); | |
212 | ||
213 | if (good_user == UID_INVALID) | |
214 | return 0; | |
215 | ||
216 | r = sd_bus_query_sender_creds(m, SD_BUS_CREDS_EUID, &creds); | |
217 | if (r < 0) | |
218 | return r; | |
219 | ||
0f514420 LP |
220 | /* Don't trust augmented credentials for authorization */ |
221 | assert_return((sd_bus_creds_get_augmented_mask(creds) & SD_BUS_CREDS_EUID) == 0, -EPERM); | |
222 | ||
c529695e LP |
223 | r = sd_bus_creds_get_euid(creds, &sender_uid); |
224 | if (r < 0) | |
225 | return r; | |
226 | ||
227 | return sender_uid == good_user; | |
228 | } | |
229 | ||
ceb24229 | 230 | int bus_test_polkit( |
f3885791 | 231 | sd_bus_message *call, |
def9a7aa | 232 | int capability, |
40ca29a1 | 233 | const char *action, |
403ed0e5 | 234 | const char **details, |
c529695e | 235 | uid_t good_user, |
40ca29a1 LP |
236 | bool *_challenge, |
237 | sd_bus_error *e) { | |
238 | ||
40ca29a1 LP |
239 | int r; |
240 | ||
f3885791 | 241 | assert(call); |
40ca29a1 LP |
242 | assert(action); |
243 | ||
ceb24229 LP |
244 | /* Tests non-interactively! */ |
245 | ||
c529695e LP |
246 | r = check_good_user(call, good_user); |
247 | if (r != 0) | |
248 | return r; | |
249 | ||
f3885791 | 250 | r = sd_bus_query_sender_privilege(call, capability); |
5b12334d LP |
251 | if (r < 0) |
252 | return r; | |
f3885791 | 253 | else if (r > 0) |
40ca29a1 | 254 | return 1; |
40ca29a1 LP |
255 | #ifdef ENABLE_POLKIT |
256 | else { | |
403ed0e5 | 257 | _cleanup_bus_message_unref_ sd_bus_message *request = NULL; |
40ca29a1 | 258 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
ceb24229 | 259 | int authorized = false, challenge = false; |
403ed0e5 | 260 | const char *sender, **k, **v; |
5b12334d | 261 | |
f3885791 | 262 | sender = sd_bus_message_get_sender(call); |
5b12334d LP |
263 | if (!sender) |
264 | return -EBADMSG; | |
40ca29a1 | 265 | |
403ed0e5 | 266 | r = sd_bus_message_new_method_call( |
f3885791 | 267 | call->bus, |
403ed0e5 | 268 | &request, |
40ca29a1 LP |
269 | "org.freedesktop.PolicyKit1", |
270 | "/org/freedesktop/PolicyKit1/Authority", | |
271 | "org.freedesktop.PolicyKit1.Authority", | |
403ed0e5 MC |
272 | "CheckAuthorization"); |
273 | if (r < 0) | |
274 | return r; | |
275 | ||
276 | r = sd_bus_message_append( | |
277 | request, | |
278 | "(sa{sv})s", | |
40ca29a1 | 279 | "system-bus-name", 1, "name", "s", sender, |
403ed0e5 MC |
280 | action); |
281 | if (r < 0) | |
282 | return r; | |
283 | ||
284 | r = sd_bus_message_open_container(request, 'a', "{ss}"); | |
285 | if (r < 0) | |
286 | return r; | |
40ca29a1 | 287 | |
403ed0e5 MC |
288 | STRV_FOREACH_PAIR(k, v, details) { |
289 | r = sd_bus_message_append(request, "{ss}", *k, *v); | |
290 | if (r < 0) | |
291 | return r; | |
292 | } | |
293 | ||
294 | r = sd_bus_message_close_container(request); | |
295 | if (r < 0) | |
296 | return r; | |
297 | ||
298 | r = sd_bus_message_append(request, "us", 0, NULL); | |
299 | if (r < 0) | |
300 | return r; | |
301 | ||
302 | r = sd_bus_call(call->bus, request, 0, e, &reply); | |
40ca29a1 LP |
303 | if (r < 0) { |
304 | /* Treat no PK available as access denied */ | |
305 | if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) { | |
306 | sd_bus_error_free(e); | |
307 | return -EACCES; | |
308 | } | |
309 | ||
310 | return r; | |
311 | } | |
312 | ||
313333b4 | 313 | r = sd_bus_message_enter_container(reply, 'r', "bba{ss}"); |
2b49a470 TA |
314 | if (r < 0) |
315 | return r; | |
316 | ||
317 | r = sd_bus_message_read(reply, "bb", &authorized, &challenge); | |
318 | if (r < 0) | |
319 | return r; | |
40ca29a1 LP |
320 | |
321 | if (authorized) | |
322 | return 1; | |
323 | ||
324 | if (_challenge) { | |
325 | *_challenge = challenge; | |
326 | return 0; | |
327 | } | |
328 | } | |
329 | #endif | |
330 | ||
331 | return -EACCES; | |
332 | } | |
333 | ||
334 | #ifdef ENABLE_POLKIT | |
335 | ||
336 | typedef struct AsyncPolkitQuery { | |
337 | sd_bus_message *request, *reply; | |
338 | sd_bus_message_handler_t callback; | |
339 | void *userdata; | |
19befb2d | 340 | sd_bus_slot *slot; |
ebcf1f97 | 341 | Hashmap *registry; |
40ca29a1 LP |
342 | } AsyncPolkitQuery; |
343 | ||
19befb2d | 344 | static void async_polkit_query_free(AsyncPolkitQuery *q) { |
ebcf1f97 LP |
345 | |
346 | if (!q) | |
347 | return; | |
348 | ||
19befb2d | 349 | sd_bus_slot_unref(q->slot); |
ebcf1f97 LP |
350 | |
351 | if (q->registry && q->request) | |
352 | hashmap_remove(q->registry, q->request); | |
353 | ||
354 | sd_bus_message_unref(q->request); | |
355 | sd_bus_message_unref(q->reply); | |
356 | ||
357 | free(q); | |
358 | } | |
359 | ||
19070062 | 360 | static int async_polkit_callback(sd_bus_message *reply, void *userdata, sd_bus_error *error) { |
ebcf1f97 | 361 | _cleanup_bus_error_free_ sd_bus_error error_buffer = SD_BUS_ERROR_NULL; |
ebcf1f97 | 362 | AsyncPolkitQuery *q = userdata; |
40ca29a1 LP |
363 | int r; |
364 | ||
40ca29a1 LP |
365 | assert(reply); |
366 | assert(q); | |
367 | ||
19befb2d | 368 | q->slot = sd_bus_slot_unref(q->slot); |
40ca29a1 | 369 | q->reply = sd_bus_message_ref(reply); |
40ca29a1 | 370 | |
ebcf1f97 LP |
371 | r = sd_bus_message_rewind(q->request, true); |
372 | if (r < 0) { | |
373 | r = sd_bus_reply_method_errno(q->request, r, NULL); | |
374 | goto finish; | |
375 | } | |
40ca29a1 | 376 | |
19070062 | 377 | r = q->callback(q->request, q->userdata, &error_buffer); |
ebcf1f97 | 378 | r = bus_maybe_reply_error(q->request, r, &error_buffer); |
40ca29a1 | 379 | |
ebcf1f97 | 380 | finish: |
19befb2d LP |
381 | async_polkit_query_free(q); |
382 | ||
ebcf1f97 | 383 | return r; |
40ca29a1 LP |
384 | } |
385 | ||
386 | #endif | |
387 | ||
388 | int bus_verify_polkit_async( | |
f3885791 | 389 | sd_bus_message *call, |
def9a7aa | 390 | int capability, |
40ca29a1 | 391 | const char *action, |
403ed0e5 | 392 | const char **details, |
40ca29a1 | 393 | bool interactive, |
c529695e | 394 | uid_t good_user, |
f3885791 LP |
395 | Hashmap **registry, |
396 | sd_bus_error *error) { | |
40ca29a1 LP |
397 | |
398 | #ifdef ENABLE_POLKIT | |
399 | _cleanup_bus_message_unref_ sd_bus_message *pk = NULL; | |
400 | AsyncPolkitQuery *q; | |
403ed0e5 | 401 | const char *sender, **k, **v; |
f3885791 LP |
402 | sd_bus_message_handler_t callback; |
403 | void *userdata; | |
b911eb15 | 404 | int c; |
5b12334d | 405 | #endif |
40ca29a1 LP |
406 | int r; |
407 | ||
f3885791 | 408 | assert(call); |
40ca29a1 | 409 | assert(action); |
f3885791 | 410 | assert(registry); |
40ca29a1 | 411 | |
c529695e LP |
412 | r = check_good_user(call, good_user); |
413 | if (r != 0) | |
414 | return r; | |
415 | ||
40ca29a1 | 416 | #ifdef ENABLE_POLKIT |
f3885791 | 417 | q = hashmap_get(*registry, call); |
40ca29a1 | 418 | if (q) { |
102d8f81 | 419 | int authorized, challenge; |
40ca29a1 LP |
420 | |
421 | /* This is the second invocation of this function, and | |
422 | * there's already a response from polkit, let's | |
423 | * process it */ | |
424 | assert(q->reply); | |
425 | ||
426 | if (sd_bus_message_is_method_error(q->reply, NULL)) { | |
427 | const sd_bus_error *e; | |
428 | ||
ebcf1f97 | 429 | /* Copy error from polkit reply */ |
40ca29a1 LP |
430 | e = sd_bus_message_get_error(q->reply); |
431 | sd_bus_error_copy(error, e); | |
40ca29a1 | 432 | |
ebcf1f97 LP |
433 | /* Treat no PK available as access denied */ |
434 | if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) | |
435 | return -EACCES; | |
436 | ||
5958d089 | 437 | return -sd_bus_error_get_errno(e); |
40ca29a1 LP |
438 | } |
439 | ||
440 | r = sd_bus_message_enter_container(q->reply, 'r', "bba{ss}"); | |
441 | if (r >= 0) | |
442 | r = sd_bus_message_read(q->reply, "bb", &authorized, &challenge); | |
443 | ||
40ca29a1 LP |
444 | if (r < 0) |
445 | return r; | |
446 | ||
447 | if (authorized) | |
448 | return 1; | |
449 | ||
f2288cc6 LP |
450 | if (challenge) |
451 | return sd_bus_error_set(error, SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED, "Interactive authentication required."); | |
452 | ||
40ca29a1 LP |
453 | return -EACCES; |
454 | } | |
455 | #endif | |
456 | ||
f3885791 | 457 | r = sd_bus_query_sender_privilege(call, capability); |
5b12334d LP |
458 | if (r < 0) |
459 | return r; | |
f3885791 | 460 | else if (r > 0) |
40ca29a1 | 461 | return 1; |
5b12334d | 462 | |
40ca29a1 | 463 | #ifdef ENABLE_POLKIT |
f3885791 LP |
464 | if (sd_bus_get_current_message(call->bus) != call) |
465 | return -EINVAL; | |
466 | ||
467 | callback = sd_bus_get_current_handler(call->bus); | |
468 | if (!callback) | |
469 | return -EINVAL; | |
470 | ||
471 | userdata = sd_bus_get_current_userdata(call->bus); | |
472 | ||
473 | sender = sd_bus_message_get_sender(call); | |
5b12334d LP |
474 | if (!sender) |
475 | return -EBADMSG; | |
40ca29a1 | 476 | |
b911eb15 LP |
477 | c = sd_bus_message_get_allow_interactive_authorization(call); |
478 | if (c < 0) | |
479 | return c; | |
480 | if (c > 0) | |
481 | interactive = true; | |
482 | ||
d5099efc | 483 | r = hashmap_ensure_allocated(registry, NULL); |
40ca29a1 LP |
484 | if (r < 0) |
485 | return r; | |
486 | ||
487 | r = sd_bus_message_new_method_call( | |
f3885791 | 488 | call->bus, |
151b9b96 | 489 | &pk, |
40ca29a1 LP |
490 | "org.freedesktop.PolicyKit1", |
491 | "/org/freedesktop/PolicyKit1/Authority", | |
492 | "org.freedesktop.PolicyKit1.Authority", | |
151b9b96 | 493 | "CheckAuthorization"); |
40ca29a1 LP |
494 | if (r < 0) |
495 | return r; | |
496 | ||
497 | r = sd_bus_message_append( | |
498 | pk, | |
403ed0e5 | 499 | "(sa{sv})s", |
40ca29a1 | 500 | "system-bus-name", 1, "name", "s", sender, |
403ed0e5 MC |
501 | action); |
502 | if (r < 0) | |
503 | return r; | |
504 | ||
505 | r = sd_bus_message_open_container(pk, 'a', "{ss}"); | |
506 | if (r < 0) | |
507 | return r; | |
508 | ||
509 | STRV_FOREACH_PAIR(k, v, details) { | |
510 | r = sd_bus_message_append(pk, "{ss}", *k, *v); | |
511 | if (r < 0) | |
512 | return r; | |
513 | } | |
514 | ||
515 | r = sd_bus_message_close_container(pk); | |
516 | if (r < 0) | |
517 | return r; | |
518 | ||
519 | r = sd_bus_message_append(pk, "us", !!interactive, NULL); | |
40ca29a1 LP |
520 | if (r < 0) |
521 | return r; | |
522 | ||
523 | q = new0(AsyncPolkitQuery, 1); | |
524 | if (!q) | |
525 | return -ENOMEM; | |
526 | ||
f3885791 | 527 | q->request = sd_bus_message_ref(call); |
40ca29a1 LP |
528 | q->callback = callback; |
529 | q->userdata = userdata; | |
530 | ||
f3885791 | 531 | r = hashmap_put(*registry, call, q); |
40ca29a1 | 532 | if (r < 0) { |
19befb2d | 533 | async_polkit_query_free(q); |
40ca29a1 LP |
534 | return r; |
535 | } | |
536 | ||
ebcf1f97 LP |
537 | q->registry = *registry; |
538 | ||
f3885791 | 539 | r = sd_bus_call_async(call->bus, &q->slot, pk, async_polkit_callback, q, 0); |
ebcf1f97 | 540 | if (r < 0) { |
19befb2d | 541 | async_polkit_query_free(q); |
40ca29a1 | 542 | return r; |
ebcf1f97 | 543 | } |
40ca29a1 LP |
544 | |
545 | return 0; | |
546 | #endif | |
547 | ||
548 | return -EACCES; | |
549 | } | |
550 | ||
36e34057 | 551 | void bus_verify_polkit_async_registry_free(Hashmap *registry) { |
40ca29a1 LP |
552 | #ifdef ENABLE_POLKIT |
553 | AsyncPolkitQuery *q; | |
554 | ||
555 | while ((q = hashmap_steal_first(registry))) | |
19befb2d | 556 | async_polkit_query_free(q); |
40ca29a1 LP |
557 | |
558 | hashmap_free(registry); | |
559 | #endif | |
560 | } | |
0c842e0a | 561 | |
718db961 | 562 | int bus_check_peercred(sd_bus *c) { |
0c842e0a TG |
563 | struct ucred ucred; |
564 | socklen_t l; | |
0f8bd8de | 565 | int fd; |
0c842e0a TG |
566 | |
567 | assert(c); | |
568 | ||
569 | fd = sd_bus_get_fd(c); | |
0f8bd8de LP |
570 | if (fd < 0) |
571 | return fd; | |
0c842e0a TG |
572 | |
573 | l = sizeof(struct ucred); | |
0f8bd8de | 574 | if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0) |
0c842e0a | 575 | return -errno; |
0c842e0a | 576 | |
0f8bd8de | 577 | if (l != sizeof(struct ucred)) |
0c842e0a | 578 | return -E2BIG; |
0c842e0a TG |
579 | |
580 | if (ucred.uid != 0 && ucred.uid != geteuid()) | |
581 | return -EPERM; | |
582 | ||
583 | return 1; | |
584 | } | |
585 | ||
266f3e26 | 586 | int bus_connect_system_systemd(sd_bus **_bus) { |
0f8bd8de | 587 | _cleanup_bus_unref_ sd_bus *bus = NULL; |
0c842e0a | 588 | int r; |
0c842e0a TG |
589 | |
590 | assert(_bus); | |
591 | ||
0f8bd8de | 592 | if (geteuid() != 0) |
266f3e26 | 593 | return sd_bus_default_system(_bus); |
a1da8583 | 594 | |
a6aa8912 LP |
595 | /* If we are root and kdbus is not available, then let's talk |
596 | * directly to the system instance, instead of going via the | |
597 | * bus */ | |
a1da8583 | 598 | |
0f8bd8de LP |
599 | r = sd_bus_new(&bus); |
600 | if (r < 0) | |
601 | return r; | |
a1da8583 | 602 | |
e3afaf6b | 603 | r = sd_bus_set_address(bus, KERNEL_SYSTEM_BUS_ADDRESS); |
0f8bd8de LP |
604 | if (r < 0) |
605 | return r; | |
a1da8583 | 606 | |
a6aa8912 LP |
607 | bus->bus_client = true; |
608 | ||
0f8bd8de | 609 | r = sd_bus_start(bus); |
a6aa8912 LP |
610 | if (r >= 0) { |
611 | *_bus = bus; | |
612 | bus = NULL; | |
613 | return 0; | |
614 | } | |
615 | ||
616 | bus = sd_bus_unref(bus); | |
a6aa8912 LP |
617 | |
618 | r = sd_bus_new(&bus); | |
0f8bd8de LP |
619 | if (r < 0) |
620 | return r; | |
a1da8583 | 621 | |
a6aa8912 LP |
622 | r = sd_bus_set_address(bus, "unix:path=/run/systemd/private"); |
623 | if (r < 0) | |
624 | return r; | |
625 | ||
626 | r = sd_bus_start(bus); | |
627 | if (r < 0) | |
266f3e26 | 628 | return sd_bus_default_system(_bus); |
a6aa8912 | 629 | |
0f8bd8de | 630 | r = bus_check_peercred(bus); |
a1da8583 TG |
631 | if (r < 0) |
632 | return r; | |
633 | ||
634 | *_bus = bus; | |
0f8bd8de LP |
635 | bus = NULL; |
636 | ||
a1da8583 TG |
637 | return 0; |
638 | } | |
639 | ||
266f3e26 | 640 | int bus_connect_user_systemd(sd_bus **_bus) { |
41dd15e4 | 641 | _cleanup_bus_unref_ sd_bus *bus = NULL; |
a6aa8912 | 642 | _cleanup_free_ char *ee = NULL; |
41dd15e4 LP |
643 | const char *e; |
644 | int r; | |
645 | ||
a6aa8912 | 646 | /* Try via kdbus first, and then directly */ |
41dd15e4 LP |
647 | |
648 | assert(_bus); | |
649 | ||
a6aa8912 LP |
650 | r = sd_bus_new(&bus); |
651 | if (r < 0) | |
652 | return r; | |
653 | ||
e3afaf6b | 654 | if (asprintf(&bus->address, KERNEL_USER_BUS_ADDRESS_FMT, getuid()) < 0) |
a6aa8912 LP |
655 | return -ENOMEM; |
656 | ||
657 | bus->bus_client = true; | |
658 | ||
659 | r = sd_bus_start(bus); | |
660 | if (r >= 0) { | |
661 | *_bus = bus; | |
662 | bus = NULL; | |
663 | return 0; | |
664 | } | |
665 | ||
666 | bus = sd_bus_unref(bus); | |
a6aa8912 | 667 | |
41dd15e4 | 668 | e = secure_getenv("XDG_RUNTIME_DIR"); |
537220d9 | 669 | if (!e) |
266f3e26 | 670 | return sd_bus_default_user(_bus); |
537220d9 | 671 | |
a6aa8912 LP |
672 | ee = bus_address_escape(e); |
673 | if (!ee) | |
537220d9 | 674 | return -ENOMEM; |
41dd15e4 LP |
675 | |
676 | r = sd_bus_new(&bus); | |
677 | if (r < 0) | |
678 | return r; | |
679 | ||
a6aa8912 LP |
680 | bus->address = strjoin("unix:path=", ee, "/systemd/private", NULL); |
681 | if (!bus->address) | |
682 | return -ENOMEM; | |
41dd15e4 LP |
683 | |
684 | r = sd_bus_start(bus); | |
685 | if (r < 0) | |
266f3e26 | 686 | return sd_bus_default_user(_bus); |
41dd15e4 LP |
687 | |
688 | r = bus_check_peercred(bus); | |
689 | if (r < 0) | |
690 | return r; | |
691 | ||
692 | *_bus = bus; | |
693 | bus = NULL; | |
694 | ||
695 | return 0; | |
696 | } | |
697 | ||
9f6eb1cd | 698 | int bus_print_property(const char *name, sd_bus_message *property, bool all) { |
a1da8583 TG |
699 | char type; |
700 | const char *contents; | |
9f6eb1cd | 701 | int r; |
a1da8583 TG |
702 | |
703 | assert(name); | |
704 | assert(property); | |
705 | ||
9f6eb1cd KS |
706 | r = sd_bus_message_peek_type(property, &type, &contents); |
707 | if (r < 0) | |
708 | return r; | |
a1da8583 TG |
709 | |
710 | switch (type) { | |
711 | ||
712 | case SD_BUS_TYPE_STRING: { | |
713 | const char *s; | |
9f6eb1cd KS |
714 | |
715 | r = sd_bus_message_read_basic(property, type, &s); | |
716 | if (r < 0) | |
717 | return r; | |
a1da8583 | 718 | |
27e9c5af LP |
719 | if (all || !isempty(s)) { |
720 | _cleanup_free_ char *escaped = NULL; | |
721 | ||
722 | escaped = xescape(s, "\n"); | |
723 | if (!escaped) | |
724 | return -ENOMEM; | |
725 | ||
726 | printf("%s=%s\n", name, escaped); | |
727 | } | |
a1da8583 TG |
728 | |
729 | return 1; | |
730 | } | |
731 | ||
732 | case SD_BUS_TYPE_BOOLEAN: { | |
c2fa048c | 733 | int b; |
a1da8583 | 734 | |
9f6eb1cd KS |
735 | r = sd_bus_message_read_basic(property, type, &b); |
736 | if (r < 0) | |
737 | return r; | |
738 | ||
a1da8583 TG |
739 | printf("%s=%s\n", name, yes_no(b)); |
740 | ||
741 | return 1; | |
742 | } | |
743 | ||
744 | case SD_BUS_TYPE_UINT64: { | |
745 | uint64_t u; | |
746 | ||
9f6eb1cd KS |
747 | r = sd_bus_message_read_basic(property, type, &u); |
748 | if (r < 0) | |
749 | return r; | |
a1da8583 TG |
750 | |
751 | /* Yes, heuristics! But we can change this check | |
752 | * should it turn out to not be sufficient */ | |
753 | ||
754 | if (endswith(name, "Timestamp")) { | |
755 | char timestamp[FORMAT_TIMESTAMP_MAX], *t; | |
756 | ||
757 | t = format_timestamp(timestamp, sizeof(timestamp), u); | |
758 | if (t || all) | |
759 | printf("%s=%s\n", name, strempty(t)); | |
760 | ||
761 | } else if (strstr(name, "USec")) { | |
762 | char timespan[FORMAT_TIMESPAN_MAX]; | |
763 | ||
764 | printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u, 0)); | |
765 | } else | |
766 | printf("%s=%llu\n", name, (unsigned long long) u); | |
767 | ||
768 | return 1; | |
769 | } | |
770 | ||
d7161865 DM |
771 | case SD_BUS_TYPE_INT64: { |
772 | int64_t i; | |
773 | ||
774 | r = sd_bus_message_read_basic(property, type, &i); | |
775 | if (r < 0) | |
776 | return r; | |
777 | ||
778 | printf("%s=%lld\n", name, (long long) i); | |
779 | ||
780 | return 1; | |
781 | } | |
782 | ||
a1da8583 TG |
783 | case SD_BUS_TYPE_UINT32: { |
784 | uint32_t u; | |
785 | ||
9f6eb1cd KS |
786 | r = sd_bus_message_read_basic(property, type, &u); |
787 | if (r < 0) | |
788 | return r; | |
a1da8583 TG |
789 | |
790 | if (strstr(name, "UMask") || strstr(name, "Mode")) | |
791 | printf("%s=%04o\n", name, u); | |
792 | else | |
793 | printf("%s=%u\n", name, (unsigned) u); | |
794 | ||
795 | return 1; | |
796 | } | |
797 | ||
798 | case SD_BUS_TYPE_INT32: { | |
799 | int32_t i; | |
800 | ||
9f6eb1cd KS |
801 | r = sd_bus_message_read_basic(property, type, &i); |
802 | if (r < 0) | |
803 | return r; | |
a1da8583 TG |
804 | |
805 | printf("%s=%i\n", name, (int) i); | |
806 | return 1; | |
807 | } | |
808 | ||
809 | case SD_BUS_TYPE_DOUBLE: { | |
810 | double d; | |
811 | ||
9f6eb1cd KS |
812 | r = sd_bus_message_read_basic(property, type, &d); |
813 | if (r < 0) | |
814 | return r; | |
a1da8583 TG |
815 | |
816 | printf("%s=%g\n", name, d); | |
817 | return 1; | |
818 | } | |
819 | ||
820 | case SD_BUS_TYPE_ARRAY: | |
a1da8583 | 821 | if (streq(contents, "s")) { |
261afec5 MAP |
822 | bool first = true; |
823 | const char *str; | |
a1da8583 | 824 | |
9f6eb1cd KS |
825 | r = sd_bus_message_enter_container(property, SD_BUS_TYPE_ARRAY, contents); |
826 | if (r < 0) | |
827 | return r; | |
828 | ||
261afec5 | 829 | while((r = sd_bus_message_read_basic(property, SD_BUS_TYPE_STRING, &str)) > 0) { |
27e9c5af LP |
830 | _cleanup_free_ char *escaped = NULL; |
831 | ||
261afec5 MAP |
832 | if (first) |
833 | printf("%s=", name); | |
834 | ||
27e9c5af LP |
835 | escaped = xescape(str, "\n "); |
836 | if (!escaped) | |
837 | return -ENOMEM; | |
838 | ||
839 | printf("%s%s", first ? "" : " ", escaped); | |
261afec5 MAP |
840 | |
841 | first = false; | |
842 | } | |
9f6eb1cd KS |
843 | if (r < 0) |
844 | return r; | |
a1da8583 | 845 | |
261afec5 | 846 | if (first && all) |
a1da8583 | 847 | printf("%s=", name); |
261afec5 | 848 | if (!first || all) |
a1da8583 | 849 | puts(""); |
a1da8583 | 850 | |
9f6eb1cd KS |
851 | r = sd_bus_message_exit_container(property); |
852 | if (r < 0) | |
853 | return r; | |
a1da8583 TG |
854 | |
855 | return 1; | |
856 | ||
857 | } else if (streq(contents, "y")) { | |
858 | const uint8_t *u; | |
859 | size_t n; | |
860 | ||
9f6eb1cd KS |
861 | r = sd_bus_message_read_array(property, SD_BUS_TYPE_BYTE, (const void**) &u, &n); |
862 | if (r < 0) | |
863 | return r; | |
864 | ||
a1da8583 TG |
865 | if (all || n > 0) { |
866 | unsigned int i; | |
867 | ||
868 | printf("%s=", name); | |
869 | ||
870 | for (i = 0; i < n; i++) | |
871 | printf("%02x", u[i]); | |
872 | ||
873 | puts(""); | |
874 | } | |
875 | ||
876 | return 1; | |
877 | ||
878 | } else if (streq(contents, "u")) { | |
879 | uint32_t *u; | |
880 | size_t n; | |
881 | ||
9f6eb1cd KS |
882 | r = sd_bus_message_read_array(property, SD_BUS_TYPE_UINT32, (const void**) &u, &n); |
883 | if (r < 0) | |
884 | return r; | |
885 | ||
a1da8583 TG |
886 | if (all || n > 0) { |
887 | unsigned int i; | |
888 | ||
889 | printf("%s=", name); | |
890 | ||
891 | for (i = 0; i < n; i++) | |
892 | printf("%08x", u[i]); | |
893 | ||
894 | puts(""); | |
895 | } | |
896 | ||
897 | return 1; | |
898 | } | |
899 | ||
900 | break; | |
901 | } | |
902 | ||
903 | return 0; | |
904 | } | |
d21ed1ea | 905 | |
27e72d6b | 906 | int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool all) { |
9f6eb1cd | 907 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
ffc06c35 KS |
908 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
909 | int r; | |
910 | ||
9f6eb1cd KS |
911 | assert(bus); |
912 | assert(path); | |
913 | ||
914 | r = sd_bus_call_method(bus, | |
27e72d6b | 915 | dest, |
ffc06c35 KS |
916 | path, |
917 | "org.freedesktop.DBus.Properties", | |
918 | "GetAll", | |
919 | &error, | |
9f6eb1cd | 920 | &reply, |
ffc06c35 | 921 | "s", ""); |
9f6eb1cd | 922 | if (r < 0) |
ffc06c35 | 923 | return r; |
ffc06c35 | 924 | |
9f6eb1cd | 925 | r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}"); |
ffc06c35 KS |
926 | if (r < 0) |
927 | return r; | |
928 | ||
9f6eb1cd | 929 | while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { |
ffc06c35 | 930 | const char *name; |
ffc06c35 | 931 | const char *contents; |
ffc06c35 | 932 | |
9f6eb1cd | 933 | r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &name); |
ffc06c35 KS |
934 | if (r < 0) |
935 | return r; | |
936 | ||
9f6eb1cd KS |
937 | if (!filter || strv_find(filter, name)) { |
938 | r = sd_bus_message_peek_type(reply, NULL, &contents); | |
939 | if (r < 0) | |
940 | return r; | |
941 | ||
942 | r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents); | |
943 | if (r < 0) | |
944 | return r; | |
ffc06c35 | 945 | |
9f6eb1cd KS |
946 | r = bus_print_property(name, reply, all); |
947 | if (r < 0) | |
948 | return r; | |
27e72d6b SP |
949 | if (r == 0) { |
950 | if (all) | |
951 | printf("%s=[unprintable]\n", name); | |
952 | /* skip what we didn't read */ | |
953 | r = sd_bus_message_skip(reply, contents); | |
954 | if (r < 0) | |
955 | return r; | |
956 | } | |
9f6eb1cd KS |
957 | |
958 | r = sd_bus_message_exit_container(reply); | |
959 | if (r < 0) | |
960 | return r; | |
961 | } else { | |
962 | r = sd_bus_message_skip(reply, "v"); | |
963 | if (r < 0) | |
964 | return r; | |
965 | } | |
966 | ||
967 | r = sd_bus_message_exit_container(reply); | |
ffc06c35 KS |
968 | if (r < 0) |
969 | return r; | |
9f6eb1cd KS |
970 | } |
971 | if (r < 0) | |
972 | return r; | |
ffc06c35 | 973 | |
9f6eb1cd KS |
974 | r = sd_bus_message_exit_container(reply); |
975 | if (r < 0) | |
976 | return r; | |
ffc06c35 | 977 | |
9f6eb1cd KS |
978 | return 0; |
979 | } | |
ffc06c35 | 980 | |
9f6eb1cd KS |
981 | int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { |
982 | sd_id128_t *p = userdata; | |
983 | const void *v; | |
984 | size_t n; | |
985 | int r; | |
ffc06c35 | 986 | |
9f6eb1cd KS |
987 | r = sd_bus_message_read_array(m, SD_BUS_TYPE_BYTE, &v, &n); |
988 | if (r < 0) | |
989 | return r; | |
ffc06c35 | 990 | |
9f6eb1cd KS |
991 | if (n == 0) |
992 | *p = SD_ID128_NULL; | |
993 | else if (n == 16) | |
994 | memcpy((*p).bytes, v, n); | |
995 | else | |
996 | return -EINVAL; | |
ffc06c35 | 997 | |
9f6eb1cd KS |
998 | return 0; |
999 | } | |
ffc06c35 | 1000 | |
9f6eb1cd KS |
1001 | static int map_basic(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { |
1002 | char type; | |
1003 | int r; | |
ffc06c35 | 1004 | |
9f6eb1cd KS |
1005 | r = sd_bus_message_peek_type(m, &type, NULL); |
1006 | if (r < 0) | |
1007 | return r; | |
ffc06c35 | 1008 | |
9f6eb1cd KS |
1009 | switch (type) { |
1010 | case SD_BUS_TYPE_STRING: { | |
1011 | const char *s; | |
9f6eb1cd | 1012 | char **p = userdata; |
ffc06c35 | 1013 | |
9f6eb1cd KS |
1014 | r = sd_bus_message_read_basic(m, type, &s); |
1015 | if (r < 0) | |
1016 | break; | |
ffc06c35 | 1017 | |
9f6eb1cd KS |
1018 | if (isempty(s)) |
1019 | break; | |
ffc06c35 | 1020 | |
0704ea57 | 1021 | r = free_and_strdup(p, s); |
9f6eb1cd KS |
1022 | break; |
1023 | } | |
ffc06c35 | 1024 | |
9f6eb1cd | 1025 | case SD_BUS_TYPE_ARRAY: { |
7d6884b6 TA |
1026 | _cleanup_strv_free_ char **l = NULL; |
1027 | char ***p = userdata; | |
ffc06c35 | 1028 | |
9f6eb1cd KS |
1029 | r = bus_message_read_strv_extend(m, &l); |
1030 | if (r < 0) | |
1031 | break; | |
ffc06c35 | 1032 | |
9f6eb1cd KS |
1033 | strv_free(*p); |
1034 | *p = l; | |
1035 | l = NULL; | |
ffc06c35 | 1036 | |
9f6eb1cd KS |
1037 | break; |
1038 | } | |
ffc06c35 | 1039 | |
9f6eb1cd KS |
1040 | case SD_BUS_TYPE_BOOLEAN: { |
1041 | unsigned b; | |
1042 | bool *p = userdata; | |
ffc06c35 | 1043 | |
9f6eb1cd KS |
1044 | r = sd_bus_message_read_basic(m, type, &b); |
1045 | if (r < 0) | |
1046 | break; | |
ffc06c35 | 1047 | |
9f6eb1cd | 1048 | *p = b; |
ffc06c35 | 1049 | |
9f6eb1cd KS |
1050 | break; |
1051 | } | |
ffc06c35 | 1052 | |
9f6eb1cd KS |
1053 | case SD_BUS_TYPE_UINT32: { |
1054 | uint64_t u; | |
1055 | uint32_t *p = userdata; | |
1056 | ||
1057 | r = sd_bus_message_read_basic(m, type, &u); | |
1058 | if (r < 0) | |
ffc06c35 | 1059 | break; |
ffc06c35 | 1060 | |
9f6eb1cd KS |
1061 | *p = u; |
1062 | ||
1063 | break; | |
1064 | } | |
1065 | ||
1066 | case SD_BUS_TYPE_UINT64: { | |
1067 | uint64_t t; | |
1068 | uint64_t *p = userdata; | |
1069 | ||
1070 | r = sd_bus_message_read_basic(m, type, &t); | |
1071 | if (r < 0) | |
ffc06c35 | 1072 | break; |
ffc06c35 | 1073 | |
9f6eb1cd KS |
1074 | *p = t; |
1075 | ||
1076 | break; | |
1077 | } | |
1078 | ||
1079 | default: | |
1080 | break; | |
1081 | } | |
1082 | ||
1083 | return r; | |
1084 | } | |
1085 | ||
fe506d56 LP |
1086 | int bus_message_map_all_properties( |
1087 | sd_bus_message *m, | |
1088 | const struct bus_properties_map *map, | |
1089 | void *userdata) { | |
1090 | ||
9f6eb1cd KS |
1091 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
1092 | int r; | |
1093 | ||
aae2b488 | 1094 | assert(m); |
9f6eb1cd KS |
1095 | assert(map); |
1096 | ||
9f6eb1cd KS |
1097 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}"); |
1098 | if (r < 0) | |
1099 | return r; | |
1100 | ||
1101 | while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { | |
1102 | const struct bus_properties_map *prop; | |
1103 | const char *member; | |
1104 | const char *contents; | |
1105 | void *v; | |
1106 | unsigned i; | |
1107 | ||
1108 | r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &member); | |
ffc06c35 KS |
1109 | if (r < 0) |
1110 | return r; | |
1111 | ||
9f6eb1cd KS |
1112 | for (i = 0, prop = NULL; map[i].member; i++) |
1113 | if (streq(map[i].member, member)) { | |
1114 | prop = &map[i]; | |
1115 | break; | |
1116 | } | |
1117 | ||
1118 | if (prop) { | |
1119 | r = sd_bus_message_peek_type(m, NULL, &contents); | |
1120 | if (r < 0) | |
1121 | return r; | |
1122 | ||
1123 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, contents); | |
1124 | if (r < 0) | |
1125 | return r; | |
1126 | ||
1127 | v = (uint8_t *)userdata + prop->offset; | |
27e72d6b | 1128 | if (map[i].set) |
fe506d56 | 1129 | r = prop->set(sd_bus_message_get_bus(m), member, m, &error, v); |
9f6eb1cd | 1130 | else |
fe506d56 | 1131 | r = map_basic(sd_bus_message_get_bus(m), member, m, &error, v); |
2b49a470 TA |
1132 | if (r < 0) |
1133 | return r; | |
9f6eb1cd KS |
1134 | |
1135 | r = sd_bus_message_exit_container(m); | |
1136 | if (r < 0) | |
1137 | return r; | |
1138 | } else { | |
1139 | r = sd_bus_message_skip(m, "v"); | |
1140 | if (r < 0) | |
6c1508b8 | 1141 | return r; |
9f6eb1cd KS |
1142 | } |
1143 | ||
ffc06c35 KS |
1144 | r = sd_bus_message_exit_container(m); |
1145 | if (r < 0) | |
1146 | return r; | |
1147 | } | |
fe506d56 LP |
1148 | if (r < 0) |
1149 | return r; | |
ffc06c35 | 1150 | |
aae2b488 DH |
1151 | return sd_bus_message_exit_container(m); |
1152 | } | |
1153 | ||
fe506d56 LP |
1154 | int bus_message_map_properties_changed( |
1155 | sd_bus_message *m, | |
1156 | const struct bus_properties_map *map, | |
1157 | void *userdata) { | |
1158 | ||
aae2b488 DH |
1159 | const char *member; |
1160 | int r, invalidated, i; | |
1161 | ||
aae2b488 DH |
1162 | assert(m); |
1163 | assert(map); | |
1164 | ||
fe506d56 | 1165 | r = bus_message_map_all_properties(m, map, userdata); |
aae2b488 DH |
1166 | if (r < 0) |
1167 | return r; | |
1168 | ||
1169 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "s"); | |
1170 | if (r < 0) | |
1171 | return r; | |
1172 | ||
1173 | invalidated = 0; | |
1174 | while ((r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &member)) > 0) | |
1175 | for (i = 0; map[i].member; i++) | |
1176 | if (streq(map[i].member, member)) { | |
1177 | ++invalidated; | |
1178 | break; | |
1179 | } | |
fe506d56 LP |
1180 | if (r < 0) |
1181 | return r; | |
aae2b488 DH |
1182 | |
1183 | r = sd_bus_message_exit_container(m); | |
1184 | if (r < 0) | |
1185 | return r; | |
1186 | ||
1187 | return invalidated; | |
1188 | } | |
1189 | ||
fe506d56 LP |
1190 | int bus_map_all_properties( |
1191 | sd_bus *bus, | |
1192 | const char *destination, | |
1193 | const char *path, | |
1194 | const struct bus_properties_map *map, | |
1195 | void *userdata) { | |
1196 | ||
aae2b488 DH |
1197 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; |
1198 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
1199 | int r; | |
1200 | ||
1201 | assert(bus); | |
1202 | assert(destination); | |
1203 | assert(path); | |
1204 | assert(map); | |
1205 | ||
1206 | r = sd_bus_call_method( | |
1207 | bus, | |
1208 | destination, | |
1209 | path, | |
1210 | "org.freedesktop.DBus.Properties", | |
1211 | "GetAll", | |
1212 | &error, | |
1213 | &m, | |
1214 | "s", ""); | |
1215 | if (r < 0) | |
1216 | return r; | |
1217 | ||
fe506d56 | 1218 | return bus_message_map_all_properties(m, map, userdata); |
ffc06c35 KS |
1219 | } |
1220 | ||
266f3e26 | 1221 | int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **bus) { |
d21ed1ea LP |
1222 | int r; |
1223 | ||
1224 | assert(transport >= 0); | |
1225 | assert(transport < _BUS_TRANSPORT_MAX); | |
1226 | assert(bus); | |
1227 | ||
1228 | assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); | |
15411c0c | 1229 | assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); |
d21ed1ea LP |
1230 | |
1231 | switch (transport) { | |
1232 | ||
1233 | case BUS_TRANSPORT_LOCAL: | |
1234 | if (user) | |
76b54375 | 1235 | r = sd_bus_default_user(bus); |
d21ed1ea | 1236 | else |
76b54375 | 1237 | r = sd_bus_default_system(bus); |
d21ed1ea LP |
1238 | |
1239 | break; | |
1240 | ||
1241 | case BUS_TRANSPORT_REMOTE: | |
3db729cb | 1242 | r = sd_bus_open_system_remote(bus, host); |
41dd15e4 LP |
1243 | break; |
1244 | ||
de33fc62 LP |
1245 | case BUS_TRANSPORT_MACHINE: |
1246 | r = sd_bus_open_system_machine(bus, host); | |
41dd15e4 LP |
1247 | break; |
1248 | ||
1249 | default: | |
1250 | assert_not_reached("Hmm, unknown transport type."); | |
1251 | } | |
1252 | ||
1253 | return r; | |
1254 | } | |
1255 | ||
266f3e26 | 1256 | int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus) { |
41dd15e4 LP |
1257 | int r; |
1258 | ||
1259 | assert(transport >= 0); | |
1260 | assert(transport < _BUS_TRANSPORT_MAX); | |
1261 | assert(bus); | |
1262 | ||
1263 | assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); | |
15411c0c | 1264 | assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); |
41dd15e4 LP |
1265 | |
1266 | switch (transport) { | |
1267 | ||
1268 | case BUS_TRANSPORT_LOCAL: | |
1269 | if (user) | |
266f3e26 | 1270 | r = bus_connect_user_systemd(bus); |
41dd15e4 | 1271 | else |
266f3e26 | 1272 | r = bus_connect_system_systemd(bus); |
41dd15e4 LP |
1273 | |
1274 | break; | |
1275 | ||
1276 | case BUS_TRANSPORT_REMOTE: | |
3db729cb | 1277 | r = sd_bus_open_system_remote(bus, host); |
d21ed1ea LP |
1278 | break; |
1279 | ||
de33fc62 LP |
1280 | case BUS_TRANSPORT_MACHINE: |
1281 | r = sd_bus_open_system_machine(bus, host); | |
d21ed1ea LP |
1282 | break; |
1283 | ||
1284 | default: | |
1285 | assert_not_reached("Hmm, unknown transport type."); | |
1286 | } | |
1287 | ||
1288 | return r; | |
1289 | } | |
e6504030 LP |
1290 | |
1291 | int bus_property_get_bool( | |
1292 | sd_bus *bus, | |
1293 | const char *path, | |
1294 | const char *interface, | |
1295 | const char *property, | |
1296 | sd_bus_message *reply, | |
ebcf1f97 LP |
1297 | void *userdata, |
1298 | sd_bus_error *error) { | |
e6504030 LP |
1299 | |
1300 | int b = *(bool*) userdata; | |
1301 | ||
1302 | return sd_bus_message_append_basic(reply, 'b', &b); | |
1303 | } | |
1304 | ||
718db961 LP |
1305 | #if __SIZEOF_SIZE_T__ != 8 |
1306 | int bus_property_get_size( | |
e6504030 LP |
1307 | sd_bus *bus, |
1308 | const char *path, | |
1309 | const char *interface, | |
1310 | const char *property, | |
1311 | sd_bus_message *reply, | |
ebcf1f97 LP |
1312 | void *userdata, |
1313 | sd_bus_error *error) { | |
e6504030 | 1314 | |
718db961 | 1315 | uint64_t sz = *(size_t*) userdata; |
e6504030 | 1316 | |
718db961 | 1317 | return sd_bus_message_append_basic(reply, 't', &sz); |
e6504030 | 1318 | } |
718db961 LP |
1319 | #endif |
1320 | ||
1321 | #if __SIZEOF_LONG__ != 8 | |
1322 | int bus_property_get_long( | |
1323 | sd_bus *bus, | |
1324 | const char *path, | |
1325 | const char *interface, | |
1326 | const char *property, | |
1327 | sd_bus_message *reply, | |
ebcf1f97 LP |
1328 | void *userdata, |
1329 | sd_bus_error *error) { | |
718db961 LP |
1330 | |
1331 | int64_t l = *(long*) userdata; | |
1332 | ||
1333 | return sd_bus_message_append_basic(reply, 'x', &l); | |
1334 | } | |
1335 | ||
1336 | int bus_property_get_ulong( | |
1337 | sd_bus *bus, | |
1338 | const char *path, | |
1339 | const char *interface, | |
1340 | const char *property, | |
1341 | sd_bus_message *reply, | |
ebcf1f97 LP |
1342 | void *userdata, |
1343 | sd_bus_error *error) { | |
718db961 LP |
1344 | |
1345 | uint64_t ul = *(unsigned long*) userdata; | |
1346 | ||
1347 | return sd_bus_message_append_basic(reply, 't', &ul); | |
1348 | } | |
1349 | #endif | |
5b30bef8 LP |
1350 | |
1351 | int bus_log_parse_error(int r) { | |
23bbb0de | 1352 | return log_error_errno(r, "Failed to parse bus message: %m"); |
5b30bef8 | 1353 | } |
f459b602 MAP |
1354 | |
1355 | int bus_log_create_error(int r) { | |
23bbb0de | 1356 | return log_error_errno(r, "Failed to create bus message: %m"); |
f459b602 MAP |
1357 | } |
1358 | ||
1359 | int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u) { | |
1360 | assert(message); | |
1361 | assert(u); | |
1362 | ||
1238ee09 LP |
1363 | u->machine = NULL; |
1364 | ||
f459b602 MAP |
1365 | return sd_bus_message_read( |
1366 | message, | |
1367 | "(ssssssouso)", | |
1368 | &u->id, | |
1369 | &u->description, | |
1370 | &u->load_state, | |
1371 | &u->active_state, | |
1372 | &u->sub_state, | |
1373 | &u->following, | |
1374 | &u->unit_path, | |
1375 | &u->job_id, | |
1376 | &u->job_type, | |
1377 | &u->job_path); | |
1378 | } | |
ebcf1f97 | 1379 | |
df31a6c0 LP |
1380 | int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment) { |
1381 | const char *eq, *field; | |
1382 | int r; | |
1383 | ||
1384 | assert(m); | |
1385 | assert(assignment); | |
1386 | ||
1387 | eq = strchr(assignment, '='); | |
1388 | if (!eq) { | |
1389 | log_error("Not an assignment: %s", assignment); | |
1390 | return -EINVAL; | |
1391 | } | |
1392 | ||
1393 | field = strndupa(assignment, eq - assignment); | |
1394 | eq ++; | |
1395 | ||
b2f8b02e LP |
1396 | if (streq(field, "CPUQuota")) { |
1397 | ||
1398 | if (isempty(eq)) { | |
1399 | ||
1400 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, "CPUQuotaPerSecUSec"); | |
1401 | if (r < 0) | |
1402 | return bus_log_create_error(r); | |
1403 | ||
3a43da28 | 1404 | r = sd_bus_message_append(m, "v", "t", USEC_INFINITY); |
b2f8b02e LP |
1405 | |
1406 | } else if (endswith(eq, "%")) { | |
1407 | double percent; | |
1408 | ||
1409 | if (sscanf(eq, "%lf%%", &percent) != 1 || percent <= 0) { | |
1410 | log_error("CPU quota '%s' invalid.", eq); | |
1411 | return -EINVAL; | |
1412 | } | |
1413 | ||
1414 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, "CPUQuotaPerSecUSec"); | |
1415 | if (r < 0) | |
1416 | return bus_log_create_error(r); | |
1417 | ||
1418 | r = sd_bus_message_append(m, "v", "t", (usec_t) percent * USEC_PER_SEC / 100); | |
1419 | } else { | |
9a054909 | 1420 | log_error("CPU quota needs to be in percent."); |
b2f8b02e LP |
1421 | return -EINVAL; |
1422 | } | |
1423 | ||
b2f8b02e LP |
1424 | if (r < 0) |
1425 | return bus_log_create_error(r); | |
1426 | ||
1427 | return 0; | |
ceb728cf NC |
1428 | } else if (streq(field, "EnvironmentFile")) { |
1429 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, "EnvironmentFiles"); | |
1430 | if (r < 0) | |
1431 | return r; | |
1432 | ||
1433 | r = sd_bus_message_append(m, "v", "a(sb)", 1, | |
1434 | eq[0] == '-' ? eq + 1 : eq, | |
1435 | eq[0] == '-'); | |
1436 | if (r < 0) | |
1437 | return r; | |
1438 | return 0; | |
b2f8b02e LP |
1439 | } |
1440 | ||
df31a6c0 LP |
1441 | r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); |
1442 | if (r < 0) | |
1443 | return bus_log_create_error(r); | |
1444 | ||
e567439e | 1445 | if (STR_IN_SET(field, |
03a7b521 | 1446 | "CPUAccounting", "MemoryAccounting", "BlockIOAccounting", "TasksAccounting", |
8bed4cbc | 1447 | "SendSIGHUP", "SendSIGKILL", "WakeSystem", "DefaultDependencies", |
b9c50073 | 1448 | "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "RemainAfterExit", |
047d9933 EV |
1449 | "PrivateTmp", "PrivateDevices", "PrivateNetwork", "NoNewPrivileges", |
1450 | "SyslogLevelPrefix")) { | |
df31a6c0 LP |
1451 | |
1452 | r = parse_boolean(eq); | |
1453 | if (r < 0) { | |
1454 | log_error("Failed to parse boolean assignment %s.", assignment); | |
1455 | return -EINVAL; | |
1456 | } | |
1457 | ||
1458 | r = sd_bus_message_append(m, "v", "b", r); | |
1459 | ||
1460 | } else if (streq(field, "MemoryLimit")) { | |
59f448cf | 1461 | uint64_t bytes; |
df31a6c0 | 1462 | |
03a7b521 LP |
1463 | if (isempty(eq) || streq(eq, "infinity")) |
1464 | bytes = (uint64_t) -1; | |
1465 | else { | |
1466 | r = parse_size(eq, 1024, &bytes); | |
1467 | if (r < 0) { | |
1468 | log_error("Failed to parse bytes specification %s", assignment); | |
1469 | return -EINVAL; | |
1470 | } | |
df31a6c0 LP |
1471 | } |
1472 | ||
59f448cf | 1473 | r = sd_bus_message_append(m, "v", "t", bytes); |
df31a6c0 | 1474 | |
03a7b521 LP |
1475 | } else if (streq(field, "TasksMax")) { |
1476 | uint64_t n; | |
1477 | ||
1478 | if (isempty(eq) || streq(eq, "infinity")) | |
1479 | n = (uint64_t) -1; | |
1480 | else { | |
1481 | r = safe_atou64(eq, &n); | |
1482 | if (r < 0) { | |
1483 | log_error("Failed to parse maximum tasks specification %s", assignment); | |
1484 | return -EINVAL; | |
1485 | } | |
1486 | } | |
1487 | ||
1488 | r = sd_bus_message_append(m, "v", "t", n); | |
1489 | ||
d53d9474 LP |
1490 | } else if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) { |
1491 | uint64_t u; | |
1492 | ||
1493 | r = cg_cpu_shares_parse(eq, &u); | |
1494 | if (r < 0) { | |
1495 | log_error("Failed to parse %s value %s.", field, eq); | |
1496 | return -EINVAL; | |
1497 | } | |
1498 | ||
1499 | r = sd_bus_message_append(m, "v", "t", u); | |
1500 | ||
1501 | } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) { | |
df31a6c0 LP |
1502 | uint64_t u; |
1503 | ||
d53d9474 | 1504 | r = cg_cpu_shares_parse(eq, &u); |
df31a6c0 LP |
1505 | if (r < 0) { |
1506 | log_error("Failed to parse %s value %s.", field, eq); | |
1507 | return -EINVAL; | |
1508 | } | |
1509 | ||
1510 | r = sd_bus_message_append(m, "v", "t", u); | |
1511 | ||
8bed4cbc LP |
1512 | } else if (STR_IN_SET(field, |
1513 | "User", "Group", "DevicePolicy", "KillMode", | |
1514 | "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath", | |
1515 | "StandardInput", "StandardOutput", "StandardError", | |
602b8355 | 1516 | "Description", "Slice", "Type", "WorkingDirectory", |
eff58074 EV |
1517 | "RootDirectory", "SyslogIdentifier", "ProtectSystem", |
1518 | "ProtectHome")) | |
df31a6c0 LP |
1519 | r = sd_bus_message_append(m, "v", "s", eq); |
1520 | ||
a8a13575 EV |
1521 | else if (streq(field, "SyslogLevel")) { |
1522 | int level; | |
1523 | ||
1524 | level = log_level_from_string(eq); | |
1525 | if (level < 0) { | |
1526 | log_error("Failed to parse %s value %s.", field, eq); | |
1527 | return -EINVAL; | |
1528 | } | |
1529 | ||
1530 | r = sd_bus_message_append(m, "v", "i", level); | |
1531 | ||
460ed929 EV |
1532 | } else if (streq(field, "SyslogFacility")) { |
1533 | int facility; | |
1534 | ||
1535 | facility = log_facility_unshifted_from_string(eq); | |
1536 | if (facility < 0) { | |
1537 | log_error("Failed to parse %s value %s.", field, eq); | |
1538 | return -EINVAL; | |
1539 | } | |
1540 | ||
1541 | r = sd_bus_message_append(m, "v", "i", facility); | |
1542 | ||
a8a13575 | 1543 | } else if (streq(field, "DeviceAllow")) { |
df31a6c0 LP |
1544 | |
1545 | if (isempty(eq)) | |
1546 | r = sd_bus_message_append(m, "v", "a(ss)", 0); | |
1547 | else { | |
1548 | const char *path, *rwm, *e; | |
1549 | ||
1550 | e = strchr(eq, ' '); | |
1551 | if (e) { | |
1552 | path = strndupa(eq, e - eq); | |
1553 | rwm = e+1; | |
1554 | } else { | |
1555 | path = eq; | |
1556 | rwm = ""; | |
1557 | } | |
1558 | ||
1559 | if (!path_startswith(path, "/dev")) { | |
1560 | log_error("%s is not a device file in /dev.", path); | |
1561 | return -EINVAL; | |
1562 | } | |
1563 | ||
1564 | r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm); | |
1565 | } | |
1566 | ||
1567 | } else if (STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { | |
1568 | ||
1569 | if (isempty(eq)) | |
1570 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
1571 | else { | |
1572 | const char *path, *bandwidth, *e; | |
59f448cf | 1573 | uint64_t bytes; |
df31a6c0 LP |
1574 | |
1575 | e = strchr(eq, ' '); | |
1576 | if (e) { | |
1577 | path = strndupa(eq, e - eq); | |
1578 | bandwidth = e+1; | |
1579 | } else { | |
1580 | log_error("Failed to parse %s value %s.", field, eq); | |
1581 | return -EINVAL; | |
1582 | } | |
1583 | ||
1584 | if (!path_startswith(path, "/dev")) { | |
1585 | log_error("%s is not a device file in /dev.", path); | |
1586 | return -EINVAL; | |
1587 | } | |
1588 | ||
1589 | r = parse_size(bandwidth, 1000, &bytes); | |
1590 | if (r < 0) { | |
1591 | log_error("Failed to parse byte value %s.", bandwidth); | |
1592 | return -EINVAL; | |
1593 | } | |
1594 | ||
59f448cf | 1595 | r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes); |
df31a6c0 LP |
1596 | } |
1597 | ||
1598 | } else if (streq(field, "BlockIODeviceWeight")) { | |
1599 | ||
1600 | if (isempty(eq)) | |
1601 | r = sd_bus_message_append(m, "v", "a(st)", 0); | |
1602 | else { | |
1603 | const char *path, *weight, *e; | |
1604 | uint64_t u; | |
1605 | ||
1606 | e = strchr(eq, ' '); | |
1607 | if (e) { | |
1608 | path = strndupa(eq, e - eq); | |
1609 | weight = e+1; | |
1610 | } else { | |
1611 | log_error("Failed to parse %s value %s.", field, eq); | |
1612 | return -EINVAL; | |
1613 | } | |
1614 | ||
1615 | if (!path_startswith(path, "/dev")) { | |
1616 | log_error("%s is not a device file in /dev.", path); | |
1617 | return -EINVAL; | |
1618 | } | |
1619 | ||
1620 | r = safe_atou64(weight, &u); | |
1621 | if (r < 0) { | |
1622 | log_error("Failed to parse %s value %s.", field, weight); | |
1623 | return -EINVAL; | |
1624 | } | |
1625 | r = sd_bus_message_append(m, "v", "a(st)", path, u); | |
1626 | } | |
1627 | ||
d584f638 LP |
1628 | } else if (rlimit_from_string(field) >= 0) { |
1629 | uint64_t rl; | |
1630 | ||
1631 | if (streq(eq, "infinity")) | |
1632 | rl = (uint64_t) -1; | |
1633 | else { | |
1634 | r = safe_atou64(eq, &rl); | |
1635 | if (r < 0) { | |
1636 | log_error("Invalid resource limit: %s", eq); | |
1637 | return -EINVAL; | |
1638 | } | |
1639 | } | |
1640 | ||
1641 | r = sd_bus_message_append(m, "v", "t", rl); | |
1642 | ||
e567439e LP |
1643 | } else if (streq(field, "Nice")) { |
1644 | int32_t i; | |
1645 | ||
1646 | r = safe_atoi32(eq, &i); | |
1647 | if (r < 0) { | |
1648 | log_error("Failed to parse %s value %s.", field, eq); | |
1649 | return -EINVAL; | |
1650 | } | |
1651 | ||
1652 | r = sd_bus_message_append(m, "v", "i", i); | |
1653 | ||
1654 | } else if (streq(field, "Environment")) { | |
e9876fc9 | 1655 | const char *p; |
e567439e | 1656 | |
e9876fc9 EV |
1657 | r = sd_bus_message_open_container(m, 'v', "as"); |
1658 | if (r < 0) | |
1659 | return bus_log_create_error(r); | |
1660 | ||
1661 | r = sd_bus_message_open_container(m, 'a', "s"); | |
1662 | if (r < 0) | |
1663 | return bus_log_create_error(r); | |
1664 | ||
1665 | p = eq; | |
1666 | ||
1667 | for (;;) { | |
1668 | _cleanup_free_ char *word = NULL; | |
1669 | ||
1670 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); | |
1671 | if (r < 0) { | |
1672 | log_error("Failed to parse Environment value %s", eq); | |
1673 | return -EINVAL; | |
1674 | } | |
1675 | if (r == 0) | |
1676 | break; | |
1677 | ||
1678 | if (!env_assignment_is_valid(word)) { | |
1679 | log_error("Invalid environment assignment: %s", eq); | |
1680 | return -EINVAL; | |
1681 | } | |
1682 | ||
1683 | r = sd_bus_message_append_basic(m, 's', word); | |
1684 | if (r < 0) | |
1685 | return bus_log_create_error(r); | |
1686 | } | |
1687 | ||
1688 | r = sd_bus_message_close_container(m); | |
1689 | if (r < 0) | |
1690 | return bus_log_create_error(r); | |
1691 | ||
1692 | r = sd_bus_message_close_container(m); | |
e567439e LP |
1693 | |
1694 | } else if (streq(field, "KillSignal")) { | |
1695 | int sig; | |
1696 | ||
1697 | sig = signal_from_string_try_harder(eq); | |
1698 | if (sig < 0) { | |
1699 | log_error("Failed to parse %s value %s.", field, eq); | |
1700 | return -EINVAL; | |
1701 | } | |
1702 | ||
1703 | r = sd_bus_message_append(m, "v", "i", sig); | |
1704 | ||
4c213d6c WC |
1705 | } else if (streq(field, "AccuracySec")) { |
1706 | usec_t u; | |
1707 | ||
1708 | r = parse_sec(eq, &u); | |
1709 | if (r < 0) { | |
1710 | log_error("Failed to parse %s value %s", field, eq); | |
1711 | return -EINVAL; | |
1712 | } | |
1713 | ||
1714 | r = sd_bus_message_append(m, "v", "t", u); | |
f1db3327 EV |
1715 | } else if (streq(field, "TimerSlackNSec")) { |
1716 | nsec_t n; | |
4c213d6c | 1717 | |
f1db3327 EV |
1718 | r = parse_nsec(eq, &n); |
1719 | if (r < 0) { | |
1720 | log_error("Failed to parse %s value %s", field, eq); | |
1721 | return -EINVAL; | |
1722 | } | |
1723 | ||
1724 | r = sd_bus_message_append(m, "v", "t", n); | |
6b862936 EV |
1725 | } else if (streq(field, "OOMScoreAdjust")) { |
1726 | int oa; | |
1727 | ||
1728 | r = safe_atoi(eq, &oa); | |
1729 | if (r < 0) { | |
1730 | log_error("Failed to parse %s value %s", field, eq); | |
1731 | return -EINVAL; | |
1732 | } | |
1733 | ||
1734 | if (!oom_score_adjust_is_valid(oa)) { | |
1735 | log_error("OOM score adjust value out of range"); | |
1736 | return -EINVAL; | |
1737 | } | |
1738 | ||
1739 | r = sd_bus_message_append(m, "v", "i", oa); | |
08596068 EV |
1740 | } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories")) { |
1741 | const char *p; | |
1742 | ||
1743 | r = sd_bus_message_open_container(m, 'v', "as"); | |
1744 | if (r < 0) | |
1745 | return bus_log_create_error(r); | |
1746 | ||
1747 | r = sd_bus_message_open_container(m, 'a', "s"); | |
1748 | if (r < 0) | |
1749 | return bus_log_create_error(r); | |
1750 | ||
1751 | p = eq; | |
1752 | ||
1753 | for (;;) { | |
1754 | _cleanup_free_ char *word = NULL; | |
1755 | int offset; | |
1756 | ||
1757 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
1758 | if (r < 0) { | |
1759 | log_error("Failed to parse %s value %s", field, eq); | |
1760 | return -EINVAL; | |
1761 | } | |
1762 | if (r == 0) | |
1763 | break; | |
1764 | ||
1765 | if (!utf8_is_valid(word)) { | |
1766 | log_error("Failed to parse %s value %s", field, eq); | |
1767 | return -EINVAL; | |
1768 | } | |
1769 | ||
1770 | offset = word[0] == '-'; | |
1771 | if (!path_is_absolute(word + offset)) { | |
1772 | log_error("Failed to parse %s value %s", field, eq); | |
1773 | return -EINVAL; | |
1774 | } | |
1775 | ||
1776 | path_kill_slashes(word + offset); | |
1777 | ||
1778 | r = sd_bus_message_append_basic(m, 's', word); | |
1779 | if (r < 0) | |
1780 | return bus_log_create_error(r); | |
1781 | } | |
1782 | ||
1783 | r = sd_bus_message_close_container(m); | |
1784 | if (r < 0) | |
1785 | return bus_log_create_error(r); | |
1786 | ||
1787 | r = sd_bus_message_close_container(m); | |
1788 | ||
df31a6c0 LP |
1789 | } else { |
1790 | log_error("Unknown assignment %s.", assignment); | |
1791 | return -EINVAL; | |
1792 | } | |
1793 | ||
1794 | if (r < 0) | |
1795 | return bus_log_create_error(r); | |
1796 | ||
1797 | return 0; | |
1798 | } | |
ebd011d9 LP |
1799 | |
1800 | typedef struct BusWaitForJobs { | |
1801 | sd_bus *bus; | |
1802 | Set *jobs; | |
1803 | ||
1804 | char *name; | |
1805 | char *result; | |
1806 | ||
1807 | sd_bus_slot *slot_job_removed; | |
1808 | sd_bus_slot *slot_disconnected; | |
1809 | } BusWaitForJobs; | |
1810 | ||
19070062 | 1811 | static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
ebd011d9 LP |
1812 | assert(m); |
1813 | ||
1814 | log_error("Warning! D-Bus connection terminated."); | |
19070062 | 1815 | sd_bus_close(sd_bus_message_get_bus(m)); |
ebd011d9 LP |
1816 | |
1817 | return 0; | |
1818 | } | |
1819 | ||
19070062 | 1820 | static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
ebd011d9 LP |
1821 | const char *path, *unit, *result; |
1822 | BusWaitForJobs *d = userdata; | |
1823 | uint32_t id; | |
1824 | char *found; | |
1825 | int r; | |
1826 | ||
ebd011d9 LP |
1827 | assert(m); |
1828 | assert(d); | |
1829 | ||
1830 | r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result); | |
1831 | if (r < 0) { | |
1832 | bus_log_parse_error(r); | |
1833 | return 0; | |
1834 | } | |
1835 | ||
1836 | found = set_remove(d->jobs, (char*) path); | |
1837 | if (!found) | |
1838 | return 0; | |
1839 | ||
1840 | free(found); | |
1841 | ||
1842 | if (!isempty(result)) | |
1843 | d->result = strdup(result); | |
1844 | ||
1845 | if (!isempty(unit)) | |
1846 | d->name = strdup(unit); | |
1847 | ||
1848 | return 0; | |
1849 | } | |
1850 | ||
1851 | void bus_wait_for_jobs_free(BusWaitForJobs *d) { | |
1852 | if (!d) | |
1853 | return; | |
1854 | ||
1855 | set_free_free(d->jobs); | |
1856 | ||
1857 | sd_bus_slot_unref(d->slot_disconnected); | |
1858 | sd_bus_slot_unref(d->slot_job_removed); | |
1859 | ||
1860 | sd_bus_unref(d->bus); | |
1861 | ||
1862 | free(d->name); | |
1863 | free(d->result); | |
1864 | ||
1865 | free(d); | |
1866 | } | |
1867 | ||
1868 | int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) { | |
1869 | _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL; | |
1870 | int r; | |
1871 | ||
1872 | assert(bus); | |
1873 | assert(ret); | |
1874 | ||
1875 | d = new0(BusWaitForJobs, 1); | |
1876 | if (!d) | |
1877 | return -ENOMEM; | |
1878 | ||
1879 | d->bus = sd_bus_ref(bus); | |
1880 | ||
b798e7ba LP |
1881 | /* When we are a bus client we match by sender. Direct |
1882 | * connections OTOH have no initialized sender field, and | |
1883 | * hence we ignore the sender then */ | |
ebd011d9 LP |
1884 | r = sd_bus_add_match( |
1885 | bus, | |
1886 | &d->slot_job_removed, | |
b798e7ba | 1887 | bus->bus_client ? |
ebd011d9 LP |
1888 | "type='signal'," |
1889 | "sender='org.freedesktop.systemd1'," | |
1890 | "interface='org.freedesktop.systemd1.Manager'," | |
1891 | "member='JobRemoved'," | |
b798e7ba LP |
1892 | "path='/org/freedesktop/systemd1'" : |
1893 | "type='signal'," | |
1894 | "interface='org.freedesktop.systemd1.Manager'," | |
1895 | "member='JobRemoved'," | |
ebd011d9 LP |
1896 | "path='/org/freedesktop/systemd1'", |
1897 | match_job_removed, d); | |
1898 | if (r < 0) | |
1899 | return r; | |
1900 | ||
1901 | r = sd_bus_add_match( | |
1902 | bus, | |
1903 | &d->slot_disconnected, | |
1904 | "type='signal'," | |
1905 | "sender='org.freedesktop.DBus.Local'," | |
1906 | "interface='org.freedesktop.DBus.Local'," | |
1907 | "member='Disconnected'", | |
1908 | match_disconnected, d); | |
1909 | if (r < 0) | |
1910 | return r; | |
1911 | ||
1912 | *ret = d; | |
1913 | d = NULL; | |
1914 | ||
1915 | return 0; | |
1916 | } | |
1917 | ||
1918 | static int bus_process_wait(sd_bus *bus) { | |
1919 | int r; | |
1920 | ||
1921 | for (;;) { | |
1922 | r = sd_bus_process(bus, NULL); | |
1923 | if (r < 0) | |
1924 | return r; | |
1925 | if (r > 0) | |
1926 | return 0; | |
1927 | ||
1928 | r = sd_bus_wait(bus, (uint64_t) -1); | |
1929 | if (r < 0) | |
1930 | return r; | |
1931 | } | |
1932 | } | |
1933 | ||
d5cad221 MS |
1934 | static int bus_job_get_service_result(BusWaitForJobs *d, char **result) { |
1935 | _cleanup_free_ char *dbus_path = NULL; | |
1936 | ||
1937 | assert(d); | |
1938 | assert(d->name); | |
1939 | assert(result); | |
1940 | ||
1941 | dbus_path = unit_dbus_path_from_name(d->name); | |
1942 | if (!dbus_path) | |
1943 | return -ENOMEM; | |
1944 | ||
1945 | return sd_bus_get_property_string(d->bus, | |
1946 | "org.freedesktop.systemd1", | |
1947 | dbus_path, | |
1948 | "org.freedesktop.systemd1.Service", | |
1949 | "Result", | |
1950 | NULL, | |
1951 | result); | |
1952 | } | |
1953 | ||
1954 | static const struct { | |
1955 | const char *result, *explanation; | |
1956 | } explanations [] = { | |
a61cc460 ZJS |
1957 | { "resources", "a configured resource limit was exceeded" }, |
1958 | { "timeout", "a timeout was exceeded" }, | |
1959 | { "exit-code", "the control process exited with error code" }, | |
1960 | { "signal", "a fatal signal was delivered to the control process" }, | |
1961 | { "core-dump", "a fatal signal was delivered causing the control process to dump core" }, | |
1962 | { "watchdog", "the service failed to send watchdog ping" }, | |
1963 | { "start-limit", "start of the service was attempted too often" } | |
d5cad221 MS |
1964 | }; |
1965 | ||
1966 | static void log_job_error_with_service_result(const char* service, const char *result) { | |
d5cad221 MS |
1967 | _cleanup_free_ char *service_shell_quoted = NULL; |
1968 | ||
1969 | assert(service); | |
d5cad221 MS |
1970 | |
1971 | service_shell_quoted = shell_maybe_quote(service); | |
1972 | ||
373a99e4 LP |
1973 | if (!isempty(result)) { |
1974 | unsigned i; | |
d5cad221 | 1975 | |
373a99e4 LP |
1976 | for (i = 0; i < ELEMENTSOF(explanations); ++i) |
1977 | if (streq(result, explanations[i].result)) | |
1978 | break; | |
1979 | ||
1980 | if (i < ELEMENTSOF(explanations)) { | |
1981 | log_error("Job for %s failed because %s. See \"systemctl status %s\" and \"journalctl -xe\" for details.\n", | |
1982 | service, | |
1983 | explanations[i].explanation, | |
1984 | strna(service_shell_quoted)); | |
d5cad221 | 1985 | |
373a99e4 LP |
1986 | goto finish; |
1987 | } | |
1988 | } | |
1989 | ||
1990 | log_error("Job for %s failed. See \"systemctl status %s\" and \"journalctl -xe\" for details.\n", | |
1991 | service, | |
1992 | strna(service_shell_quoted)); | |
1993 | ||
1994 | finish: | |
d5cad221 MS |
1995 | /* For some results maybe additional explanation is required */ |
1996 | if (streq_ptr(result, "start-limit")) | |
a61cc460 | 1997 | log_info("To force a start use \"systemctl reset-failed %1$s\" followed by \"systemctl start %1$s\" again.", |
d5cad221 MS |
1998 | strna(service_shell_quoted)); |
1999 | } | |
2000 | ||
ebd011d9 LP |
2001 | static int check_wait_response(BusWaitForJobs *d, bool quiet) { |
2002 | int r = 0; | |
2003 | ||
2004 | assert(d->result); | |
2005 | ||
2006 | if (!quiet) { | |
2007 | if (streq(d->result, "canceled")) | |
2008 | log_error("Job for %s canceled.", strna(d->name)); | |
2009 | else if (streq(d->result, "timeout")) | |
2010 | log_error("Job for %s timed out.", strna(d->name)); | |
2011 | else if (streq(d->result, "dependency")) | |
2012 | log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name)); | |
2013 | else if (streq(d->result, "invalid")) | |
2014 | log_error("Job for %s invalid.", strna(d->name)); | |
2015 | else if (streq(d->result, "assert")) | |
2016 | log_error("Assertion failed on job for %s.", strna(d->name)); | |
2017 | else if (streq(d->result, "unsupported")) | |
2018 | log_error("Operation on or unit type of %s not supported on this system.", strna(d->name)); | |
2019 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) { | |
d5cad221 MS |
2020 | if (d->name) { |
2021 | int q; | |
2022 | _cleanup_free_ char *result = NULL; | |
ebd011d9 | 2023 | |
d5cad221 MS |
2024 | q = bus_job_get_service_result(d, &result); |
2025 | if (q < 0) | |
2026 | log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name); | |
ebd011d9 | 2027 | |
d5cad221 MS |
2028 | log_job_error_with_service_result(d->name, result); |
2029 | } else | |
2030 | log_error("Job failed. See \"journalctl -xe\" for details."); | |
ebd011d9 LP |
2031 | } |
2032 | } | |
2033 | ||
2034 | if (streq(d->result, "canceled")) | |
2035 | r = -ECANCELED; | |
2036 | else if (streq(d->result, "timeout")) | |
2037 | r = -ETIME; | |
2038 | else if (streq(d->result, "dependency")) | |
2039 | r = -EIO; | |
2040 | else if (streq(d->result, "invalid")) | |
2041 | r = -ENOEXEC; | |
2042 | else if (streq(d->result, "assert")) | |
2043 | r = -EPROTO; | |
2044 | else if (streq(d->result, "unsupported")) | |
15411c0c | 2045 | r = -EOPNOTSUPP; |
ebd011d9 LP |
2046 | else if (!streq(d->result, "done") && !streq(d->result, "skipped")) |
2047 | r = -EIO; | |
2048 | ||
2049 | return r; | |
2050 | } | |
2051 | ||
2052 | int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet) { | |
2053 | int r = 0; | |
2054 | ||
2055 | assert(d); | |
2056 | ||
2057 | while (!set_isempty(d->jobs)) { | |
2058 | int q; | |
2059 | ||
2060 | q = bus_process_wait(d->bus); | |
2061 | if (q < 0) | |
2062 | return log_error_errno(q, "Failed to wait for response: %m"); | |
2063 | ||
2064 | if (d->result) { | |
2065 | q = check_wait_response(d, quiet); | |
2066 | /* Return the first error as it is most likely to be | |
2067 | * meaningful. */ | |
2068 | if (q < 0 && r == 0) | |
2069 | r = q; | |
2070 | ||
2071 | log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name)); | |
2072 | } | |
2073 | ||
a1e58e8e LP |
2074 | d->name = mfree(d->name); |
2075 | d->result = mfree(d->result); | |
ebd011d9 LP |
2076 | } |
2077 | ||
2078 | return r; | |
2079 | } | |
2080 | ||
2081 | int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) { | |
2082 | int r; | |
2083 | ||
2084 | assert(d); | |
2085 | ||
2086 | r = set_ensure_allocated(&d->jobs, &string_hash_ops); | |
2087 | if (r < 0) | |
2088 | return r; | |
2089 | ||
2090 | return set_put_strdup(d->jobs, path); | |
2091 | } | |
d8f52ed2 | 2092 | |
de158ed2 LP |
2093 | int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) { |
2094 | int r; | |
2095 | ||
2096 | r = bus_wait_for_jobs_add(d, path); | |
2097 | if (r < 0) | |
2098 | return log_oom(); | |
2099 | ||
2100 | return bus_wait_for_jobs(d, quiet); | |
2101 | } | |
2102 | ||
57ab2eab | 2103 | int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) { |
d8f52ed2 LP |
2104 | const char *type, *path, *source; |
2105 | int r; | |
2106 | ||
2107 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)"); | |
2108 | if (r < 0) | |
2109 | return bus_log_parse_error(r); | |
2110 | ||
2111 | while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) { | |
2112 | if (!quiet) { | |
2113 | if (streq(type, "symlink")) | |
2114 | log_info("Created symlink from %s to %s.", path, source); | |
2115 | else | |
2116 | log_info("Removed symlink %s.", path); | |
2117 | } | |
57ab2eab JS |
2118 | |
2119 | r = unit_file_changes_add(changes, n_changes, streq(type, "symlink") ? UNIT_FILE_SYMLINK : UNIT_FILE_UNLINK, path, source); | |
2120 | if (r < 0) | |
2121 | return r; | |
d8f52ed2 LP |
2122 | } |
2123 | if (r < 0) | |
2124 | return bus_log_parse_error(r); | |
2125 | ||
2126 | r = sd_bus_message_exit_container(m); | |
2127 | if (r < 0) | |
2128 | return bus_log_parse_error(r); | |
2129 | ||
2130 | return 0; | |
2131 | } | |
98a4c30b DH |
2132 | |
2133 | /** | |
2134 | * bus_path_encode_unique() - encode unique object path | |
2135 | * @b: bus connection or NULL | |
2136 | * @prefix: object path prefix | |
2137 | * @sender_id: unique-name of client, or NULL | |
2138 | * @external_id: external ID to be chosen by client, or NULL | |
2139 | * @ret_path: storage for encoded object path pointer | |
2140 | * | |
2141 | * Whenever we provide a bus API that allows clients to create and manage | |
2142 | * server-side objects, we need to provide a unique name for these objects. If | |
2143 | * we let the server choose the name, we suffer from a race condition: If a | |
2144 | * client creates an object asynchronously, it cannot destroy that object until | |
2145 | * it received the method reply. It cannot know the name of the new object, | |
2146 | * thus, it cannot destroy it. Furthermore, it enforces a round-trip. | |
2147 | * | |
2148 | * Therefore, many APIs allow the client to choose the unique name for newly | |
2149 | * created objects. There're two problems to solve, though: | |
2150 | * 1) Object names are usually defined via dbus object paths, which are | |
2151 | * usually globally namespaced. Therefore, multiple clients must be able | |
2152 | * to choose unique object names without interference. | |
2153 | * 2) If multiple libraries share the same bus connection, they must be | |
2154 | * able to choose unique object names without interference. | |
2155 | * The first problem is solved easily by prefixing a name with the | |
2156 | * unique-bus-name of a connection. The server side must enforce this and | |
2157 | * reject any other name. The second problem is solved by providing unique | |
2158 | * suffixes from within sd-bus. | |
2159 | * | |
2160 | * This helper allows clients to create unique object-paths. It uses the | |
2161 | * template '/prefix/sender_id/external_id' and returns the new path in | |
2162 | * @ret_path (must be freed by the caller). | |
2163 | * If @sender_id is NULL, the unique-name of @b is used. If @external_id is | |
2164 | * NULL, this function allocates a unique suffix via @b (by requesting a new | |
2165 | * cookie). If both @sender_id and @external_id are given, @b can be passed as | |
2166 | * NULL. | |
2167 | * | |
2168 | * Returns: 0 on success, negative error code on failure. | |
2169 | */ | |
2170 | int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path) { | |
2171 | _cleanup_free_ char *sender_label = NULL, *external_label = NULL; | |
2172 | char external_buf[DECIMAL_STR_MAX(uint64_t)], *p; | |
2173 | int r; | |
2174 | ||
2175 | assert_return(b || (sender_id && external_id), -EINVAL); | |
2176 | assert_return(object_path_is_valid(prefix), -EINVAL); | |
2177 | assert_return(ret_path, -EINVAL); | |
2178 | ||
2179 | if (!sender_id) { | |
2180 | r = sd_bus_get_unique_name(b, &sender_id); | |
2181 | if (r < 0) | |
2182 | return r; | |
2183 | } | |
2184 | ||
2185 | if (!external_id) { | |
2186 | xsprintf(external_buf, "%"PRIu64, ++b->cookie); | |
2187 | external_id = external_buf; | |
2188 | } | |
2189 | ||
2190 | sender_label = bus_label_escape(sender_id); | |
2191 | if (!sender_label) | |
2192 | return -ENOMEM; | |
2193 | ||
2194 | external_label = bus_label_escape(external_id); | |
2195 | if (!external_label) | |
2196 | return -ENOMEM; | |
2197 | ||
2198 | p = strjoin(prefix, "/", sender_label, "/", external_label, NULL); | |
2199 | if (!p) | |
2200 | return -ENOMEM; | |
2201 | ||
2202 | *ret_path = p; | |
2203 | return 0; | |
2204 | } | |
2205 | ||
2206 | /** | |
2207 | * bus_path_decode_unique() - decode unique object path | |
2208 | * @path: object path to decode | |
2209 | * @prefix: object path prefix | |
2210 | * @ret_sender: output parameter for sender-id label | |
2211 | * @ret_external: output parameter for external-id label | |
2212 | * | |
2213 | * This does the reverse of bus_path_encode_unique() (see its description for | |
2214 | * details). Both trailing labels, sender-id and external-id, are unescaped and | |
2215 | * returned in the given output parameters (the caller must free them). | |
2216 | * | |
2217 | * Note that this function returns 0 if the path does not match the template | |
2218 | * (see bus_path_encode_unique()), 1 if it matched. | |
2219 | * | |
2220 | * Returns: Negative error code on failure, 0 if the given object path does not | |
2221 | * match the template (return parameters are set to NULL), 1 if it was | |
2222 | * parsed successfully (return parameters contain allocated labels). | |
2223 | */ | |
2224 | int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external) { | |
2225 | const char *p, *q; | |
2226 | char *sender, *external; | |
2227 | ||
2228 | assert(object_path_is_valid(path)); | |
2229 | assert(object_path_is_valid(prefix)); | |
2230 | assert(ret_sender); | |
2231 | assert(ret_external); | |
2232 | ||
2233 | p = object_path_startswith(path, prefix); | |
2234 | if (!p) { | |
2235 | *ret_sender = NULL; | |
2236 | *ret_external = NULL; | |
2237 | return 0; | |
2238 | } | |
2239 | ||
2240 | q = strchr(p, '/'); | |
2241 | if (!q) { | |
2242 | *ret_sender = NULL; | |
2243 | *ret_external = NULL; | |
2244 | return 0; | |
2245 | } | |
2246 | ||
2247 | sender = bus_label_unescape_n(p, q - p); | |
2248 | external = bus_label_unescape(q + 1); | |
2249 | if (!sender || !external) { | |
2250 | free(sender); | |
2251 | free(external); | |
2252 | return -ENOMEM; | |
2253 | } | |
2254 | ||
2255 | *ret_sender = sender; | |
2256 | *ret_external = external; | |
2257 | return 1; | |
2258 | } | |
057171ef DH |
2259 | |
2260 | bool is_kdbus_wanted(void) { | |
2261 | _cleanup_free_ char *value = NULL; | |
2262 | #ifdef ENABLE_KDBUS | |
2263 | const bool configured = true; | |
2264 | #else | |
2265 | const bool configured = false; | |
2266 | #endif | |
2267 | ||
2268 | int r; | |
2269 | ||
2270 | if (get_proc_cmdline_key("kdbus", NULL) > 0) | |
2271 | return true; | |
2272 | ||
2273 | r = get_proc_cmdline_key("kdbus=", &value); | |
2274 | if (r <= 0) | |
2275 | return configured; | |
2276 | ||
2277 | return parse_boolean(value) == 1; | |
2278 | } | |
2279 | ||
2280 | bool is_kdbus_available(void) { | |
2281 | _cleanup_close_ int fd = -1; | |
2282 | struct kdbus_cmd cmd = { .size = sizeof(cmd), .flags = KDBUS_FLAG_NEGOTIATE }; | |
2283 | ||
2284 | if (!is_kdbus_wanted()) | |
2285 | return false; | |
2286 | ||
2287 | fd = open("/sys/fs/kdbus/control", O_RDWR | O_CLOEXEC | O_NONBLOCK | O_NOCTTY); | |
2288 | if (fd < 0) | |
2289 | return false; | |
2290 | ||
2291 | return ioctl(fd, KDBUS_CMD_BUS_MAKE, &cmd) >= 0; | |
2292 | } | |
c9d031c3 EV |
2293 | |
2294 | int bus_property_get_rlimit( | |
2295 | sd_bus *bus, | |
2296 | const char *path, | |
2297 | const char *interface, | |
2298 | const char *property, | |
2299 | sd_bus_message *reply, | |
2300 | void *userdata, | |
2301 | sd_bus_error *error) { | |
2302 | ||
2303 | struct rlimit *rl; | |
2304 | uint64_t u; | |
2305 | rlim_t x; | |
2306 | ||
2307 | assert(bus); | |
2308 | assert(reply); | |
2309 | assert(userdata); | |
2310 | ||
2311 | rl = *(struct rlimit**) userdata; | |
2312 | if (rl) | |
2313 | x = rl->rlim_max; | |
2314 | else { | |
2315 | struct rlimit buf = {}; | |
2316 | int z; | |
2317 | ||
f6bcaf4c | 2318 | z = rlimit_from_string(strstr(property, "Limit")); |
c9d031c3 EV |
2319 | assert(z >= 0); |
2320 | ||
2321 | getrlimit(z, &buf); | |
2322 | x = buf.rlim_max; | |
2323 | } | |
2324 | ||
2325 | /* rlim_t might have different sizes, let's map | |
2326 | * RLIMIT_INFINITY to (uint64_t) -1, so that it is the same on | |
2327 | * all archs */ | |
2328 | u = x == RLIM_INFINITY ? (uint64_t) -1 : (uint64_t) x; | |
2329 | ||
2330 | return sd_bus_message_append(reply, "t", u); | |
2331 | } |