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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
40ca29a1 | 2 | |
a8fbdf54 TA |
3 | #include <errno.h> |
4 | #include <fcntl.h> | |
5 | #include <inttypes.h> | |
6 | #include <stdio.h> | |
7 | #include <stdlib.h> | |
8 | #include <string.h> | |
9 | #include <sys/ioctl.h> | |
10 | #include <sys/resource.h> | |
0c842e0a | 11 | #include <sys/socket.h> |
a8fbdf54 | 12 | #include <unistd.h> |
0c842e0a | 13 | |
a8fbdf54 | 14 | #include "sd-bus-protocol.h" |
4f5dd394 | 15 | #include "sd-bus.h" |
ebd011d9 LP |
16 | #include "sd-daemon.h" |
17 | #include "sd-event.h" | |
a8fbdf54 | 18 | #include "sd-id128.h" |
d53d9474 | 19 | |
b5efdb8a | 20 | #include "alloc-util.h" |
d53d9474 LP |
21 | #include "bus-internal.h" |
22 | #include "bus-label.h" | |
23 | #include "bus-message.h" | |
3ffd4af2 | 24 | #include "bus-util.h" |
52610b02 | 25 | #include "cap-list.h" |
21771f33 | 26 | #include "cgroup-util.h" |
40ca29a1 | 27 | #include "def.h" |
4f5dd394 | 28 | #include "escape.h" |
3ffd4af2 | 29 | #include "fd-util.h" |
2bba9a57 | 30 | #include "missing.h" |
049af8ad | 31 | #include "mountpoint-util.h" |
73186d53 | 32 | #include "nsflags.h" |
6bedfcbb | 33 | #include "parse-util.h" |
657ee2d8 | 34 | #include "path-util.h" |
ee104e11 | 35 | #include "proc-cmdline.h" |
78f22b97 | 36 | #include "rlimit-util.h" |
15a5e950 | 37 | #include "stdio-util.h" |
d53d9474 | 38 | #include "strv.h" |
ee104e11 | 39 | #include "user-util.h" |
40ca29a1 | 40 | |
19070062 | 41 | static int name_owner_change_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
40ca29a1 LP |
42 | sd_event *e = userdata; |
43 | ||
40ca29a1 LP |
44 | assert(m); |
45 | assert(e); | |
46 | ||
19070062 | 47 | sd_bus_close(sd_bus_message_get_bus(m)); |
6203e07a | 48 | sd_event_exit(e, 0); |
b27adf35 | 49 | |
40ca29a1 LP |
50 | return 1; |
51 | } | |
52 | ||
6203e07a | 53 | int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name) { |
75152a4d | 54 | const char *match; |
11846aa7 | 55 | const char *unique; |
40ca29a1 LP |
56 | int r; |
57 | ||
58 | assert(e); | |
59 | assert(bus); | |
60 | assert(name); | |
61 | ||
6203e07a LP |
62 | /* We unregister the name here and then wait for the |
63 | * NameOwnerChanged signal for this event to arrive before we | |
64 | * quit. We do this in order to make sure that any queued | |
65 | * requests are still processed before we really exit. */ | |
66 | ||
11846aa7 | 67 | r = sd_bus_get_unique_name(bus, &unique); |
40ca29a1 LP |
68 | if (r < 0) |
69 | return r; | |
70 | ||
75152a4d LP |
71 | match = strjoina( |
72 | "sender='org.freedesktop.DBus'," | |
73 | "type='signal'," | |
74 | "interface='org.freedesktop.DBus'," | |
75 | "member='NameOwnerChanged'," | |
76 | "path='/org/freedesktop/DBus'," | |
77 | "arg0='", name, "',", | |
78 | "arg1='", unique, "',", | |
79 | "arg2=''"); | |
80 | ||
81 | r = sd_bus_add_match_async(bus, NULL, match, name_owner_change_callback, NULL, e); | |
40ca29a1 LP |
82 | if (r < 0) |
83 | return r; | |
84 | ||
75152a4d | 85 | r = sd_bus_release_name_async(bus, NULL, name, NULL, NULL); |
40ca29a1 LP |
86 | if (r < 0) |
87 | return r; | |
88 | ||
40ca29a1 LP |
89 | return 0; |
90 | } | |
91 | ||
37224a5f LP |
92 | int bus_event_loop_with_idle( |
93 | sd_event *e, | |
94 | sd_bus *bus, | |
95 | const char *name, | |
96 | usec_t timeout, | |
97 | check_idle_t check_idle, | |
98 | void *userdata) { | |
40ca29a1 | 99 | bool exiting = false; |
6203e07a | 100 | int r, code; |
40ca29a1 LP |
101 | |
102 | assert(e); | |
103 | assert(bus); | |
104 | assert(name); | |
105 | ||
106 | for (;;) { | |
37224a5f LP |
107 | bool idle; |
108 | ||
40ca29a1 LP |
109 | r = sd_event_get_state(e); |
110 | if (r < 0) | |
111 | return r; | |
40ca29a1 LP |
112 | if (r == SD_EVENT_FINISHED) |
113 | break; | |
114 | ||
37224a5f LP |
115 | if (check_idle) |
116 | idle = check_idle(userdata); | |
117 | else | |
118 | idle = true; | |
119 | ||
120 | r = sd_event_run(e, exiting || !idle ? (uint64_t) -1 : timeout); | |
40ca29a1 LP |
121 | if (r < 0) |
122 | return r; | |
123 | ||
a8ba6cd1 | 124 | if (r == 0 && !exiting && idle) { |
b27adf35 LP |
125 | |
126 | r = sd_bus_try_close(bus); | |
127 | if (r == -EBUSY) | |
128 | continue; | |
129 | ||
430e21c2 LP |
130 | /* Fallback for dbus1 connections: we |
131 | * unregister the name and wait for the | |
132 | * response to come through for it */ | |
15411c0c | 133 | if (r == -EOPNOTSUPP) { |
430e21c2 LP |
134 | |
135 | /* Inform the service manager that we | |
136 | * are going down, so that it will | |
137 | * queue all further start requests, | |
138 | * instead of assuming we are already | |
139 | * running. */ | |
140 | sd_notify(false, "STOPPING=1"); | |
b27adf35 LP |
141 | |
142 | r = bus_async_unregister_and_exit(e, bus, name); | |
143 | if (r < 0) | |
144 | return r; | |
145 | ||
146 | exiting = true; | |
147 | continue; | |
148 | } | |
149 | ||
40ca29a1 LP |
150 | if (r < 0) |
151 | return r; | |
152 | ||
b27adf35 LP |
153 | sd_event_exit(e, 0); |
154 | break; | |
40ca29a1 LP |
155 | } |
156 | } | |
157 | ||
6203e07a LP |
158 | r = sd_event_get_exit_code(e, &code); |
159 | if (r < 0) | |
160 | return r; | |
161 | ||
162 | return code; | |
40ca29a1 LP |
163 | } |
164 | ||
5fd38859 | 165 | int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error) { |
4afd3348 | 166 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *rep = NULL; |
5fd38859 DH |
167 | int r, has_owner = 0; |
168 | ||
169 | assert(c); | |
170 | assert(name); | |
171 | ||
172 | r = sd_bus_call_method(c, | |
173 | "org.freedesktop.DBus", | |
174 | "/org/freedesktop/dbus", | |
175 | "org.freedesktop.DBus", | |
176 | "NameHasOwner", | |
177 | error, | |
178 | &rep, | |
179 | "s", | |
180 | name); | |
181 | if (r < 0) | |
182 | return r; | |
183 | ||
184 | r = sd_bus_message_read_basic(rep, 'b', &has_owner); | |
185 | if (r < 0) | |
186 | return sd_bus_error_set_errno(error, r); | |
187 | ||
188 | return has_owner; | |
189 | } | |
190 | ||
c529695e | 191 | static int check_good_user(sd_bus_message *m, uid_t good_user) { |
4afd3348 | 192 | _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
c529695e LP |
193 | uid_t sender_uid; |
194 | int r; | |
195 | ||
196 | assert(m); | |
197 | ||
198 | if (good_user == UID_INVALID) | |
199 | return 0; | |
200 | ||
201 | r = sd_bus_query_sender_creds(m, SD_BUS_CREDS_EUID, &creds); | |
202 | if (r < 0) | |
203 | return r; | |
204 | ||
0f514420 LP |
205 | /* Don't trust augmented credentials for authorization */ |
206 | assert_return((sd_bus_creds_get_augmented_mask(creds) & SD_BUS_CREDS_EUID) == 0, -EPERM); | |
207 | ||
c529695e LP |
208 | r = sd_bus_creds_get_euid(creds, &sender_uid); |
209 | if (r < 0) | |
210 | return r; | |
211 | ||
212 | return sender_uid == good_user; | |
213 | } | |
214 | ||
ceb24229 | 215 | int bus_test_polkit( |
f3885791 | 216 | sd_bus_message *call, |
def9a7aa | 217 | int capability, |
40ca29a1 | 218 | const char *action, |
403ed0e5 | 219 | const char **details, |
c529695e | 220 | uid_t good_user, |
40ca29a1 LP |
221 | bool *_challenge, |
222 | sd_bus_error *e) { | |
223 | ||
40ca29a1 LP |
224 | int r; |
225 | ||
f3885791 | 226 | assert(call); |
40ca29a1 LP |
227 | assert(action); |
228 | ||
ceb24229 LP |
229 | /* Tests non-interactively! */ |
230 | ||
c529695e LP |
231 | r = check_good_user(call, good_user); |
232 | if (r != 0) | |
233 | return r; | |
234 | ||
f3885791 | 235 | r = sd_bus_query_sender_privilege(call, capability); |
5b12334d LP |
236 | if (r < 0) |
237 | return r; | |
f3885791 | 238 | else if (r > 0) |
40ca29a1 | 239 | return 1; |
349cc4a5 | 240 | #if ENABLE_POLKIT |
40ca29a1 | 241 | else { |
4afd3348 LP |
242 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *request = NULL; |
243 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
ceb24229 | 244 | int authorized = false, challenge = false; |
403ed0e5 | 245 | const char *sender, **k, **v; |
5b12334d | 246 | |
f3885791 | 247 | sender = sd_bus_message_get_sender(call); |
5b12334d LP |
248 | if (!sender) |
249 | return -EBADMSG; | |
40ca29a1 | 250 | |
403ed0e5 | 251 | r = sd_bus_message_new_method_call( |
f3885791 | 252 | call->bus, |
403ed0e5 | 253 | &request, |
40ca29a1 LP |
254 | "org.freedesktop.PolicyKit1", |
255 | "/org/freedesktop/PolicyKit1/Authority", | |
256 | "org.freedesktop.PolicyKit1.Authority", | |
403ed0e5 MC |
257 | "CheckAuthorization"); |
258 | if (r < 0) | |
259 | return r; | |
260 | ||
261 | r = sd_bus_message_append( | |
262 | request, | |
263 | "(sa{sv})s", | |
40ca29a1 | 264 | "system-bus-name", 1, "name", "s", sender, |
403ed0e5 MC |
265 | action); |
266 | if (r < 0) | |
267 | return r; | |
268 | ||
269 | r = sd_bus_message_open_container(request, 'a', "{ss}"); | |
270 | if (r < 0) | |
271 | return r; | |
40ca29a1 | 272 | |
403ed0e5 MC |
273 | STRV_FOREACH_PAIR(k, v, details) { |
274 | r = sd_bus_message_append(request, "{ss}", *k, *v); | |
275 | if (r < 0) | |
276 | return r; | |
277 | } | |
278 | ||
279 | r = sd_bus_message_close_container(request); | |
280 | if (r < 0) | |
281 | return r; | |
282 | ||
283 | r = sd_bus_message_append(request, "us", 0, NULL); | |
284 | if (r < 0) | |
285 | return r; | |
286 | ||
287 | r = sd_bus_call(call->bus, request, 0, e, &reply); | |
40ca29a1 LP |
288 | if (r < 0) { |
289 | /* Treat no PK available as access denied */ | |
290 | if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) { | |
291 | sd_bus_error_free(e); | |
292 | return -EACCES; | |
293 | } | |
294 | ||
295 | return r; | |
296 | } | |
297 | ||
313333b4 | 298 | r = sd_bus_message_enter_container(reply, 'r', "bba{ss}"); |
2b49a470 TA |
299 | if (r < 0) |
300 | return r; | |
301 | ||
302 | r = sd_bus_message_read(reply, "bb", &authorized, &challenge); | |
303 | if (r < 0) | |
304 | return r; | |
40ca29a1 LP |
305 | |
306 | if (authorized) | |
307 | return 1; | |
308 | ||
309 | if (_challenge) { | |
310 | *_challenge = challenge; | |
311 | return 0; | |
312 | } | |
313 | } | |
314 | #endif | |
315 | ||
316 | return -EACCES; | |
317 | } | |
318 | ||
349cc4a5 | 319 | #if ENABLE_POLKIT |
40ca29a1 LP |
320 | |
321 | typedef struct AsyncPolkitQuery { | |
322 | sd_bus_message *request, *reply; | |
323 | sd_bus_message_handler_t callback; | |
324 | void *userdata; | |
19befb2d | 325 | sd_bus_slot *slot; |
ebcf1f97 | 326 | Hashmap *registry; |
40ca29a1 LP |
327 | } AsyncPolkitQuery; |
328 | ||
19befb2d | 329 | static void async_polkit_query_free(AsyncPolkitQuery *q) { |
ebcf1f97 LP |
330 | |
331 | if (!q) | |
332 | return; | |
333 | ||
19befb2d | 334 | sd_bus_slot_unref(q->slot); |
ebcf1f97 LP |
335 | |
336 | if (q->registry && q->request) | |
337 | hashmap_remove(q->registry, q->request); | |
338 | ||
339 | sd_bus_message_unref(q->request); | |
340 | sd_bus_message_unref(q->reply); | |
341 | ||
342 | free(q); | |
343 | } | |
344 | ||
19070062 | 345 | static int async_polkit_callback(sd_bus_message *reply, void *userdata, sd_bus_error *error) { |
4afd3348 | 346 | _cleanup_(sd_bus_error_free) sd_bus_error error_buffer = SD_BUS_ERROR_NULL; |
ebcf1f97 | 347 | AsyncPolkitQuery *q = userdata; |
40ca29a1 LP |
348 | int r; |
349 | ||
40ca29a1 LP |
350 | assert(reply); |
351 | assert(q); | |
352 | ||
19befb2d | 353 | q->slot = sd_bus_slot_unref(q->slot); |
40ca29a1 | 354 | q->reply = sd_bus_message_ref(reply); |
40ca29a1 | 355 | |
ebcf1f97 LP |
356 | r = sd_bus_message_rewind(q->request, true); |
357 | if (r < 0) { | |
358 | r = sd_bus_reply_method_errno(q->request, r, NULL); | |
359 | goto finish; | |
360 | } | |
40ca29a1 | 361 | |
19070062 | 362 | r = q->callback(q->request, q->userdata, &error_buffer); |
ebcf1f97 | 363 | r = bus_maybe_reply_error(q->request, r, &error_buffer); |
40ca29a1 | 364 | |
ebcf1f97 | 365 | finish: |
19befb2d LP |
366 | async_polkit_query_free(q); |
367 | ||
ebcf1f97 | 368 | return r; |
40ca29a1 LP |
369 | } |
370 | ||
371 | #endif | |
372 | ||
373 | int bus_verify_polkit_async( | |
f3885791 | 374 | sd_bus_message *call, |
def9a7aa | 375 | int capability, |
40ca29a1 | 376 | const char *action, |
403ed0e5 | 377 | const char **details, |
40ca29a1 | 378 | bool interactive, |
c529695e | 379 | uid_t good_user, |
f3885791 LP |
380 | Hashmap **registry, |
381 | sd_bus_error *error) { | |
40ca29a1 | 382 | |
349cc4a5 | 383 | #if ENABLE_POLKIT |
4afd3348 | 384 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *pk = NULL; |
40ca29a1 | 385 | AsyncPolkitQuery *q; |
403ed0e5 | 386 | const char *sender, **k, **v; |
f3885791 LP |
387 | sd_bus_message_handler_t callback; |
388 | void *userdata; | |
b911eb15 | 389 | int c; |
5b12334d | 390 | #endif |
40ca29a1 LP |
391 | int r; |
392 | ||
f3885791 | 393 | assert(call); |
40ca29a1 | 394 | assert(action); |
f3885791 | 395 | assert(registry); |
40ca29a1 | 396 | |
c529695e LP |
397 | r = check_good_user(call, good_user); |
398 | if (r != 0) | |
399 | return r; | |
400 | ||
349cc4a5 | 401 | #if ENABLE_POLKIT |
f3885791 | 402 | q = hashmap_get(*registry, call); |
40ca29a1 | 403 | if (q) { |
102d8f81 | 404 | int authorized, challenge; |
40ca29a1 LP |
405 | |
406 | /* This is the second invocation of this function, and | |
407 | * there's already a response from polkit, let's | |
408 | * process it */ | |
409 | assert(q->reply); | |
410 | ||
411 | if (sd_bus_message_is_method_error(q->reply, NULL)) { | |
412 | const sd_bus_error *e; | |
413 | ||
40ca29a1 | 414 | e = sd_bus_message_get_error(q->reply); |
40ca29a1 | 415 | |
ebcf1f97 LP |
416 | /* Treat no PK available as access denied */ |
417 | if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) | |
418 | return -EACCES; | |
419 | ||
8c69fe79 YW |
420 | /* Copy error from polkit reply */ |
421 | sd_bus_error_copy(error, e); | |
5958d089 | 422 | return -sd_bus_error_get_errno(e); |
40ca29a1 LP |
423 | } |
424 | ||
425 | r = sd_bus_message_enter_container(q->reply, 'r', "bba{ss}"); | |
426 | if (r >= 0) | |
427 | r = sd_bus_message_read(q->reply, "bb", &authorized, &challenge); | |
428 | ||
40ca29a1 LP |
429 | if (r < 0) |
430 | return r; | |
431 | ||
432 | if (authorized) | |
433 | return 1; | |
434 | ||
f2288cc6 LP |
435 | if (challenge) |
436 | return sd_bus_error_set(error, SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED, "Interactive authentication required."); | |
437 | ||
40ca29a1 LP |
438 | return -EACCES; |
439 | } | |
440 | #endif | |
441 | ||
f3885791 | 442 | r = sd_bus_query_sender_privilege(call, capability); |
5b12334d LP |
443 | if (r < 0) |
444 | return r; | |
f3885791 | 445 | else if (r > 0) |
40ca29a1 | 446 | return 1; |
5b12334d | 447 | |
349cc4a5 | 448 | #if ENABLE_POLKIT |
f3885791 LP |
449 | if (sd_bus_get_current_message(call->bus) != call) |
450 | return -EINVAL; | |
451 | ||
452 | callback = sd_bus_get_current_handler(call->bus); | |
453 | if (!callback) | |
454 | return -EINVAL; | |
455 | ||
456 | userdata = sd_bus_get_current_userdata(call->bus); | |
457 | ||
458 | sender = sd_bus_message_get_sender(call); | |
5b12334d LP |
459 | if (!sender) |
460 | return -EBADMSG; | |
40ca29a1 | 461 | |
b911eb15 LP |
462 | c = sd_bus_message_get_allow_interactive_authorization(call); |
463 | if (c < 0) | |
464 | return c; | |
465 | if (c > 0) | |
466 | interactive = true; | |
467 | ||
d5099efc | 468 | r = hashmap_ensure_allocated(registry, NULL); |
40ca29a1 LP |
469 | if (r < 0) |
470 | return r; | |
471 | ||
472 | r = sd_bus_message_new_method_call( | |
f3885791 | 473 | call->bus, |
151b9b96 | 474 | &pk, |
40ca29a1 LP |
475 | "org.freedesktop.PolicyKit1", |
476 | "/org/freedesktop/PolicyKit1/Authority", | |
477 | "org.freedesktop.PolicyKit1.Authority", | |
151b9b96 | 478 | "CheckAuthorization"); |
40ca29a1 LP |
479 | if (r < 0) |
480 | return r; | |
481 | ||
482 | r = sd_bus_message_append( | |
483 | pk, | |
403ed0e5 | 484 | "(sa{sv})s", |
40ca29a1 | 485 | "system-bus-name", 1, "name", "s", sender, |
403ed0e5 MC |
486 | action); |
487 | if (r < 0) | |
488 | return r; | |
489 | ||
490 | r = sd_bus_message_open_container(pk, 'a', "{ss}"); | |
491 | if (r < 0) | |
492 | return r; | |
493 | ||
494 | STRV_FOREACH_PAIR(k, v, details) { | |
495 | r = sd_bus_message_append(pk, "{ss}", *k, *v); | |
496 | if (r < 0) | |
497 | return r; | |
498 | } | |
499 | ||
500 | r = sd_bus_message_close_container(pk); | |
501 | if (r < 0) | |
502 | return r; | |
503 | ||
031651a5 | 504 | r = sd_bus_message_append(pk, "us", interactive, NULL); |
40ca29a1 LP |
505 | if (r < 0) |
506 | return r; | |
507 | ||
508 | q = new0(AsyncPolkitQuery, 1); | |
509 | if (!q) | |
510 | return -ENOMEM; | |
511 | ||
f3885791 | 512 | q->request = sd_bus_message_ref(call); |
40ca29a1 LP |
513 | q->callback = callback; |
514 | q->userdata = userdata; | |
515 | ||
f3885791 | 516 | r = hashmap_put(*registry, call, q); |
40ca29a1 | 517 | if (r < 0) { |
19befb2d | 518 | async_polkit_query_free(q); |
40ca29a1 LP |
519 | return r; |
520 | } | |
521 | ||
ebcf1f97 LP |
522 | q->registry = *registry; |
523 | ||
f3885791 | 524 | r = sd_bus_call_async(call->bus, &q->slot, pk, async_polkit_callback, q, 0); |
ebcf1f97 | 525 | if (r < 0) { |
19befb2d | 526 | async_polkit_query_free(q); |
40ca29a1 | 527 | return r; |
ebcf1f97 | 528 | } |
40ca29a1 LP |
529 | |
530 | return 0; | |
531 | #endif | |
532 | ||
533 | return -EACCES; | |
534 | } | |
535 | ||
36e34057 | 536 | void bus_verify_polkit_async_registry_free(Hashmap *registry) { |
349cc4a5 | 537 | #if ENABLE_POLKIT |
224b0e7a | 538 | hashmap_free_with_destructor(registry, async_polkit_query_free); |
40ca29a1 LP |
539 | #endif |
540 | } | |
0c842e0a | 541 | |
718db961 | 542 | int bus_check_peercred(sd_bus *c) { |
0c842e0a | 543 | struct ucred ucred; |
3e641e36 | 544 | int fd, r; |
0c842e0a TG |
545 | |
546 | assert(c); | |
547 | ||
548 | fd = sd_bus_get_fd(c); | |
0f8bd8de LP |
549 | if (fd < 0) |
550 | return fd; | |
0c842e0a | 551 | |
3e641e36 LP |
552 | r = getpeercred(fd, &ucred); |
553 | if (r < 0) | |
554 | return r; | |
0c842e0a TG |
555 | |
556 | if (ucred.uid != 0 && ucred.uid != geteuid()) | |
557 | return -EPERM; | |
558 | ||
559 | return 1; | |
560 | } | |
561 | ||
266f3e26 | 562 | int bus_connect_system_systemd(sd_bus **_bus) { |
b1a4981a | 563 | _cleanup_(sd_bus_close_unrefp) sd_bus *bus = NULL; |
0c842e0a | 564 | int r; |
0c842e0a TG |
565 | |
566 | assert(_bus); | |
567 | ||
0f8bd8de | 568 | if (geteuid() != 0) |
266f3e26 | 569 | return sd_bus_default_system(_bus); |
a1da8583 | 570 | |
a132bef0 ZJS |
571 | /* If we are root then let's talk directly to the system |
572 | * instance, instead of going via the bus */ | |
a6aa8912 LP |
573 | |
574 | r = sd_bus_new(&bus); | |
0f8bd8de LP |
575 | if (r < 0) |
576 | return r; | |
a1da8583 | 577 | |
a6aa8912 LP |
578 | r = sd_bus_set_address(bus, "unix:path=/run/systemd/private"); |
579 | if (r < 0) | |
580 | return r; | |
581 | ||
582 | r = sd_bus_start(bus); | |
583 | if (r < 0) | |
266f3e26 | 584 | return sd_bus_default_system(_bus); |
a6aa8912 | 585 | |
0f8bd8de | 586 | r = bus_check_peercred(bus); |
a1da8583 TG |
587 | if (r < 0) |
588 | return r; | |
589 | ||
1cc6c93a | 590 | *_bus = TAKE_PTR(bus); |
0f8bd8de | 591 | |
a1da8583 TG |
592 | return 0; |
593 | } | |
594 | ||
266f3e26 | 595 | int bus_connect_user_systemd(sd_bus **_bus) { |
b1a4981a | 596 | _cleanup_(sd_bus_close_unrefp) sd_bus *bus = NULL; |
a6aa8912 | 597 | _cleanup_free_ char *ee = NULL; |
41dd15e4 LP |
598 | const char *e; |
599 | int r; | |
600 | ||
41dd15e4 LP |
601 | assert(_bus); |
602 | ||
603 | e = secure_getenv("XDG_RUNTIME_DIR"); | |
537220d9 | 604 | if (!e) |
266f3e26 | 605 | return sd_bus_default_user(_bus); |
537220d9 | 606 | |
a6aa8912 LP |
607 | ee = bus_address_escape(e); |
608 | if (!ee) | |
537220d9 | 609 | return -ENOMEM; |
41dd15e4 LP |
610 | |
611 | r = sd_bus_new(&bus); | |
612 | if (r < 0) | |
613 | return r; | |
614 | ||
605405c6 | 615 | bus->address = strjoin("unix:path=", ee, "/systemd/private"); |
a6aa8912 LP |
616 | if (!bus->address) |
617 | return -ENOMEM; | |
41dd15e4 LP |
618 | |
619 | r = sd_bus_start(bus); | |
620 | if (r < 0) | |
266f3e26 | 621 | return sd_bus_default_user(_bus); |
41dd15e4 LP |
622 | |
623 | r = bus_check_peercred(bus); | |
624 | if (r < 0) | |
625 | return r; | |
626 | ||
1cc6c93a | 627 | *_bus = TAKE_PTR(bus); |
41dd15e4 LP |
628 | |
629 | return 0; | |
630 | } | |
631 | ||
102b0214 YW |
632 | int bus_print_property_value(const char *name, const char *expected_value, bool only_value, const char *value) { |
633 | assert(name); | |
634 | ||
635 | if (expected_value && !streq_ptr(expected_value, value)) | |
636 | return 0; | |
637 | ||
638 | if (only_value) | |
639 | puts(value); | |
640 | else | |
641 | printf("%s=%s\n", name, value); | |
642 | ||
643 | return 0; | |
644 | } | |
645 | ||
646 | int bus_print_property_valuef(const char *name, const char *expected_value, bool only_value, const char *fmt, ...) { | |
eda19357 YW |
647 | va_list ap; |
648 | int r; | |
649 | ||
650 | assert(name); | |
651 | assert(fmt); | |
652 | ||
653 | if (expected_value) { | |
654 | _cleanup_free_ char *s = NULL; | |
655 | ||
656 | va_start(ap, fmt); | |
657 | r = vasprintf(&s, fmt, ap); | |
658 | va_end(ap); | |
659 | if (r < 0) | |
660 | return -ENOMEM; | |
661 | ||
662 | if (streq_ptr(expected_value, s)) { | |
663 | if (only_value) | |
664 | puts(s); | |
665 | else | |
666 | printf("%s=%s\n", name, s); | |
667 | } | |
668 | ||
669 | return 0; | |
670 | } | |
671 | ||
672 | if (!only_value) | |
673 | printf("%s=", name); | |
674 | va_start(ap, fmt); | |
675 | vprintf(fmt, ap); | |
676 | va_end(ap); | |
677 | puts(""); | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
682 | static int bus_print_property(const char *name, const char *expected_value, sd_bus_message *m, bool value, bool all) { | |
a1da8583 TG |
683 | char type; |
684 | const char *contents; | |
9f6eb1cd | 685 | int r; |
a1da8583 TG |
686 | |
687 | assert(name); | |
07636114 | 688 | assert(m); |
a1da8583 | 689 | |
07636114 | 690 | r = sd_bus_message_peek_type(m, &type, &contents); |
9f6eb1cd KS |
691 | if (r < 0) |
692 | return r; | |
a1da8583 TG |
693 | |
694 | switch (type) { | |
695 | ||
696 | case SD_BUS_TYPE_STRING: { | |
697 | const char *s; | |
9f6eb1cd | 698 | |
07636114 | 699 | r = sd_bus_message_read_basic(m, type, &s); |
9f6eb1cd KS |
700 | if (r < 0) |
701 | return r; | |
a1da8583 | 702 | |
5993d46a ZJS |
703 | if (all || !isempty(s)) { |
704 | bool good; | |
705 | ||
706 | /* This property has a single value, so we need to take | |
707 | * care not to print a new line, everything else is OK. */ | |
708 | good = !strchr(s, '\n'); | |
102b0214 | 709 | bus_print_property_value(name, expected_value, value, good ? s : "[unprintable]"); |
5993d46a | 710 | } |
a1da8583 TG |
711 | |
712 | return 1; | |
713 | } | |
714 | ||
715 | case SD_BUS_TYPE_BOOLEAN: { | |
c2fa048c | 716 | int b; |
a1da8583 | 717 | |
07636114 | 718 | r = sd_bus_message_read_basic(m, type, &b); |
9f6eb1cd KS |
719 | if (r < 0) |
720 | return r; | |
721 | ||
eda19357 YW |
722 | if (expected_value && parse_boolean(expected_value) != b) |
723 | return 1; | |
a1da8583 | 724 | |
102b0214 | 725 | bus_print_property_value(name, NULL, value, yes_no(b)); |
a1da8583 TG |
726 | return 1; |
727 | } | |
728 | ||
729 | case SD_BUS_TYPE_UINT64: { | |
730 | uint64_t u; | |
731 | ||
07636114 | 732 | r = sd_bus_message_read_basic(m, type, &u); |
9f6eb1cd KS |
733 | if (r < 0) |
734 | return r; | |
a1da8583 TG |
735 | |
736 | /* Yes, heuristics! But we can change this check | |
737 | * should it turn out to not be sufficient */ | |
738 | ||
ead0adb1 YW |
739 | if (endswith(name, "Timestamp") || |
740 | STR_IN_SET(name, "NextElapseUSecRealtime", "LastTriggerUSec", "TimeUSec", "RTCTimeUSec")) { | |
4d9685be ZJS |
741 | char timestamp[FORMAT_TIMESTAMP_MAX]; |
742 | const char *t; | |
a1da8583 TG |
743 | |
744 | t = format_timestamp(timestamp, sizeof(timestamp), u); | |
745 | if (t || all) | |
102b0214 | 746 | bus_print_property_value(name, expected_value, value, strempty(t)); |
a1da8583 TG |
747 | |
748 | } else if (strstr(name, "USec")) { | |
749 | char timespan[FORMAT_TIMESPAN_MAX]; | |
750 | ||
eda19357 | 751 | (void) format_timespan(timespan, sizeof(timespan), u, 0); |
102b0214 | 752 | bus_print_property_value(name, expected_value, value, timespan); |
eda19357 | 753 | |
73186d53 DH |
754 | } else if (streq(name, "RestrictNamespaces")) { |
755 | _cleanup_free_ char *s = NULL; | |
ae978b9f | 756 | const char *result; |
73186d53 DH |
757 | |
758 | if ((u & NAMESPACE_FLAGS_ALL) == 0) | |
759 | result = "yes"; | |
0c21dafb | 760 | else if (FLAGS_SET(u, NAMESPACE_FLAGS_ALL)) |
73186d53 DH |
761 | result = "no"; |
762 | else { | |
86c2a9f1 | 763 | r = namespace_flags_to_string(u, &s); |
73186d53 DH |
764 | if (r < 0) |
765 | return r; | |
766 | ||
767 | result = s; | |
768 | } | |
769 | ||
102b0214 | 770 | bus_print_property_value(name, expected_value, value, result); |
21771f33 YW |
771 | |
772 | } else if (streq(name, "MountFlags")) { | |
ae978b9f | 773 | const char *result; |
21771f33 YW |
774 | |
775 | result = mount_propagation_flags_to_string(u); | |
776 | if (!result) | |
777 | return -EINVAL; | |
778 | ||
102b0214 | 779 | bus_print_property_value(name, expected_value, value, result); |
21771f33 | 780 | |
52610b02 YW |
781 | } else if (STR_IN_SET(name, "CapabilityBoundingSet", "AmbientCapabilities")) { |
782 | _cleanup_free_ char *s = NULL; | |
783 | ||
784 | r = capability_set_to_string_alloc(u, &s); | |
785 | if (r < 0) | |
786 | return r; | |
787 | ||
102b0214 | 788 | bus_print_property_value(name, expected_value, value, s); |
52610b02 | 789 | |
21771f33 YW |
790 | } else if ((STR_IN_SET(name, "CPUWeight", "StartupCPUWeight", "IOWeight", "StartupIOWeight") && u == CGROUP_WEIGHT_INVALID) || |
791 | (STR_IN_SET(name, "CPUShares", "StartupCPUShares") && u == CGROUP_CPU_SHARES_INVALID) || | |
792 | (STR_IN_SET(name, "BlockIOWeight", "StartupBlockIOWeight") && u == CGROUP_BLKIO_WEIGHT_INVALID) || | |
793 | (STR_IN_SET(name, "MemoryCurrent", "TasksCurrent") && u == (uint64_t) -1) || | |
794 | (endswith(name, "NSec") && u == (uint64_t) -1)) | |
795 | ||
102b0214 | 796 | bus_print_property_value(name, expected_value, value, "[not set]"); |
21771f33 | 797 | |
7e7223b3 | 798 | else if ((STR_IN_SET(name, "DefaultMemoryLow", "DefaultMemoryMin", "MemoryLow", "MemoryHigh", "MemoryMax", "MemorySwapMax", "MemoryLimit") && u == CGROUP_LIMIT_MAX) || |
21771f33 YW |
799 | (STR_IN_SET(name, "TasksMax", "DefaultTasksMax") && u == (uint64_t) -1) || |
800 | (startswith(name, "Limit") && u == (uint64_t) -1) || | |
801 | (startswith(name, "DefaultLimit") && u == (uint64_t) -1)) | |
802 | ||
102b0214 | 803 | bus_print_property_value(name, expected_value, value, "infinity"); |
56c6b690 YW |
804 | else if (STR_IN_SET(name, "IPIngressBytes", "IPIngressPackets", "IPEgressBytes", "IPEgressPackets") && u == (uint64_t) -1) |
805 | bus_print_property_value(name, expected_value, value, "[no data]"); | |
21771f33 | 806 | else |
102b0214 | 807 | bus_print_property_valuef(name, expected_value, value, "%"PRIu64, u); |
a1da8583 TG |
808 | |
809 | return 1; | |
810 | } | |
811 | ||
d7161865 DM |
812 | case SD_BUS_TYPE_INT64: { |
813 | int64_t i; | |
814 | ||
07636114 | 815 | r = sd_bus_message_read_basic(m, type, &i); |
d7161865 DM |
816 | if (r < 0) |
817 | return r; | |
818 | ||
102b0214 | 819 | bus_print_property_valuef(name, expected_value, value, "%"PRIi64, i); |
d7161865 DM |
820 | return 1; |
821 | } | |
822 | ||
a1da8583 TG |
823 | case SD_BUS_TYPE_UINT32: { |
824 | uint32_t u; | |
825 | ||
07636114 | 826 | r = sd_bus_message_read_basic(m, type, &u); |
9f6eb1cd KS |
827 | if (r < 0) |
828 | return r; | |
a1da8583 TG |
829 | |
830 | if (strstr(name, "UMask") || strstr(name, "Mode")) | |
102b0214 | 831 | bus_print_property_valuef(name, expected_value, value, "%04o", u); |
eda19357 | 832 | |
c533658a ZJS |
833 | else if (streq(name, "UID")) { |
834 | if (u == UID_INVALID) | |
102b0214 | 835 | bus_print_property_value(name, expected_value, value, "[not set]"); |
c533658a | 836 | else |
102b0214 | 837 | bus_print_property_valuef(name, expected_value, value, "%"PRIu32, u); |
c533658a ZJS |
838 | } else if (streq(name, "GID")) { |
839 | if (u == GID_INVALID) | |
102b0214 | 840 | bus_print_property_value(name, expected_value, value, "[not set]"); |
c533658a | 841 | else |
102b0214 | 842 | bus_print_property_valuef(name, expected_value, value, "%"PRIu32, u); |
c533658a | 843 | } else |
102b0214 | 844 | bus_print_property_valuef(name, expected_value, value, "%"PRIu32, u); |
a1da8583 TG |
845 | |
846 | return 1; | |
847 | } | |
848 | ||
849 | case SD_BUS_TYPE_INT32: { | |
850 | int32_t i; | |
851 | ||
07636114 | 852 | r = sd_bus_message_read_basic(m, type, &i); |
9f6eb1cd KS |
853 | if (r < 0) |
854 | return r; | |
a1da8583 | 855 | |
102b0214 | 856 | bus_print_property_valuef(name, expected_value, value, "%"PRIi32, i); |
a1da8583 TG |
857 | return 1; |
858 | } | |
859 | ||
860 | case SD_BUS_TYPE_DOUBLE: { | |
861 | double d; | |
862 | ||
07636114 | 863 | r = sd_bus_message_read_basic(m, type, &d); |
9f6eb1cd KS |
864 | if (r < 0) |
865 | return r; | |
a1da8583 | 866 | |
102b0214 | 867 | bus_print_property_valuef(name, expected_value, value, "%g", d); |
a1da8583 TG |
868 | return 1; |
869 | } | |
870 | ||
871 | case SD_BUS_TYPE_ARRAY: | |
a1da8583 | 872 | if (streq(contents, "s")) { |
261afec5 MAP |
873 | bool first = true; |
874 | const char *str; | |
a1da8583 | 875 | |
07636114 | 876 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, contents); |
9f6eb1cd KS |
877 | if (r < 0) |
878 | return r; | |
879 | ||
07636114 | 880 | while ((r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &str)) > 0) { |
5993d46a ZJS |
881 | bool good; |
882 | ||
4f9a9105 | 883 | if (first && !value) |
261afec5 MAP |
884 | printf("%s=", name); |
885 | ||
ed88a900 | 886 | /* This property has multiple space-separated values, so |
ead6bd25 | 887 | * neither spaces nor newlines can be allowed in a value. */ |
5993d46a ZJS |
888 | good = str[strcspn(str, " \n")] == '\0'; |
889 | ||
890 | printf("%s%s", first ? "" : " ", good ? str : "[unprintable]"); | |
261afec5 MAP |
891 | |
892 | first = false; | |
893 | } | |
9f6eb1cd KS |
894 | if (r < 0) |
895 | return r; | |
a1da8583 | 896 | |
4f9a9105 | 897 | if (first && all && !value) |
a1da8583 | 898 | printf("%s=", name); |
261afec5 | 899 | if (!first || all) |
a1da8583 | 900 | puts(""); |
a1da8583 | 901 | |
07636114 | 902 | r = sd_bus_message_exit_container(m); |
9f6eb1cd KS |
903 | if (r < 0) |
904 | return r; | |
a1da8583 TG |
905 | |
906 | return 1; | |
907 | ||
908 | } else if (streq(contents, "y")) { | |
909 | const uint8_t *u; | |
910 | size_t n; | |
911 | ||
07636114 | 912 | r = sd_bus_message_read_array(m, SD_BUS_TYPE_BYTE, (const void**) &u, &n); |
9f6eb1cd KS |
913 | if (r < 0) |
914 | return r; | |
915 | ||
a1da8583 | 916 | if (all || n > 0) { |
14cb109d | 917 | unsigned i; |
a1da8583 | 918 | |
4f9a9105 ZJS |
919 | if (!value) |
920 | printf("%s=", name); | |
a1da8583 TG |
921 | |
922 | for (i = 0; i < n; i++) | |
923 | printf("%02x", u[i]); | |
924 | ||
925 | puts(""); | |
926 | } | |
927 | ||
928 | return 1; | |
929 | ||
930 | } else if (streq(contents, "u")) { | |
931 | uint32_t *u; | |
932 | size_t n; | |
933 | ||
07636114 | 934 | r = sd_bus_message_read_array(m, SD_BUS_TYPE_UINT32, (const void**) &u, &n); |
9f6eb1cd KS |
935 | if (r < 0) |
936 | return r; | |
937 | ||
a1da8583 | 938 | if (all || n > 0) { |
14cb109d | 939 | unsigned i; |
a1da8583 | 940 | |
4f9a9105 ZJS |
941 | if (!value) |
942 | printf("%s=", name); | |
a1da8583 TG |
943 | |
944 | for (i = 0; i < n; i++) | |
945 | printf("%08x", u[i]); | |
946 | ||
947 | puts(""); | |
948 | } | |
949 | ||
950 | return 1; | |
951 | } | |
952 | ||
953 | break; | |
954 | } | |
955 | ||
956 | return 0; | |
957 | } | |
d21ed1ea | 958 | |
07636114 YW |
959 | int bus_message_print_all_properties( |
960 | sd_bus_message *m, | |
961 | bus_message_print_t func, | |
962 | char **filter, | |
963 | bool value, | |
964 | bool all, | |
965 | Set **found_properties) { | |
ffc06c35 | 966 | |
07636114 | 967 | int r; |
9f6eb1cd | 968 | |
07636114 | 969 | assert(m); |
ffc06c35 | 970 | |
07636114 | 971 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}"); |
ffc06c35 KS |
972 | if (r < 0) |
973 | return r; | |
974 | ||
07636114 | 975 | while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { |
eda19357 YW |
976 | _cleanup_free_ char *name_with_equal = NULL; |
977 | const char *name, *contents, *expected_value = NULL; | |
ffc06c35 | 978 | |
07636114 | 979 | r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &name); |
ffc06c35 KS |
980 | if (r < 0) |
981 | return r; | |
982 | ||
07636114 YW |
983 | if (found_properties) { |
984 | r = set_ensure_allocated(found_properties, &string_hash_ops); | |
985 | if (r < 0) | |
986 | return log_oom(); | |
987 | ||
988 | r = set_put(*found_properties, name); | |
0ceff906 | 989 | if (r < 0 && r != -EEXIST) |
07636114 YW |
990 | return log_oom(); |
991 | } | |
992 | ||
b910cc72 | 993 | name_with_equal = strjoin(name, "="); |
eda19357 YW |
994 | if (!name_with_equal) |
995 | return log_oom(); | |
996 | ||
997 | if (!filter || strv_find(filter, name) || | |
998 | (expected_value = strv_find_startswith(filter, name_with_equal))) { | |
07636114 | 999 | r = sd_bus_message_peek_type(m, NULL, &contents); |
9f6eb1cd KS |
1000 | if (r < 0) |
1001 | return r; | |
1002 | ||
07636114 | 1003 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, contents); |
9f6eb1cd KS |
1004 | if (r < 0) |
1005 | return r; | |
ffc06c35 | 1006 | |
07636114 | 1007 | if (func) |
eda19357 | 1008 | r = func(name, expected_value, m, value, all); |
07636114 | 1009 | if (!func || r == 0) |
eda19357 | 1010 | r = bus_print_property(name, expected_value, m, value, all); |
9f6eb1cd KS |
1011 | if (r < 0) |
1012 | return r; | |
27e72d6b | 1013 | if (r == 0) { |
eda19357 | 1014 | if (all && !expected_value) |
27e72d6b SP |
1015 | printf("%s=[unprintable]\n", name); |
1016 | /* skip what we didn't read */ | |
07636114 | 1017 | r = sd_bus_message_skip(m, contents); |
27e72d6b SP |
1018 | if (r < 0) |
1019 | return r; | |
1020 | } | |
9f6eb1cd | 1021 | |
07636114 | 1022 | r = sd_bus_message_exit_container(m); |
9f6eb1cd KS |
1023 | if (r < 0) |
1024 | return r; | |
1025 | } else { | |
07636114 | 1026 | r = sd_bus_message_skip(m, "v"); |
9f6eb1cd KS |
1027 | if (r < 0) |
1028 | return r; | |
1029 | } | |
1030 | ||
07636114 | 1031 | r = sd_bus_message_exit_container(m); |
ffc06c35 KS |
1032 | if (r < 0) |
1033 | return r; | |
9f6eb1cd KS |
1034 | } |
1035 | if (r < 0) | |
1036 | return r; | |
ffc06c35 | 1037 | |
07636114 | 1038 | r = sd_bus_message_exit_container(m); |
9f6eb1cd KS |
1039 | if (r < 0) |
1040 | return r; | |
ffc06c35 | 1041 | |
9f6eb1cd KS |
1042 | return 0; |
1043 | } | |
ffc06c35 | 1044 | |
07636114 YW |
1045 | int bus_print_all_properties( |
1046 | sd_bus *bus, | |
1047 | const char *dest, | |
1048 | const char *path, | |
1049 | bus_message_print_t func, | |
1050 | char **filter, | |
1051 | bool value, | |
1052 | bool all, | |
1053 | Set **found_properties) { | |
1054 | ||
1055 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
1056 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
1057 | int r; | |
1058 | ||
1059 | assert(bus); | |
1060 | assert(path); | |
1061 | ||
1062 | r = sd_bus_call_method(bus, | |
1063 | dest, | |
1064 | path, | |
1065 | "org.freedesktop.DBus.Properties", | |
1066 | "GetAll", | |
1067 | &error, | |
1068 | &reply, | |
1069 | "s", ""); | |
1070 | if (r < 0) | |
1071 | return r; | |
1072 | ||
1073 | return bus_message_print_all_properties(reply, func, filter, value, all, found_properties); | |
1074 | } | |
1075 | ||
9f6eb1cd KS |
1076 | int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { |
1077 | sd_id128_t *p = userdata; | |
1078 | const void *v; | |
1079 | size_t n; | |
1080 | int r; | |
ffc06c35 | 1081 | |
9f6eb1cd KS |
1082 | r = sd_bus_message_read_array(m, SD_BUS_TYPE_BYTE, &v, &n); |
1083 | if (r < 0) | |
1084 | return r; | |
ffc06c35 | 1085 | |
9f6eb1cd KS |
1086 | if (n == 0) |
1087 | *p = SD_ID128_NULL; | |
1088 | else if (n == 16) | |
1089 | memcpy((*p).bytes, v, n); | |
1090 | else | |
1091 | return -EINVAL; | |
ffc06c35 | 1092 | |
9f6eb1cd KS |
1093 | return 0; |
1094 | } | |
ffc06c35 | 1095 | |
a7e4861c | 1096 | static int map_basic(sd_bus *bus, const char *member, sd_bus_message *m, unsigned flags, sd_bus_error *error, void *userdata) { |
9f6eb1cd KS |
1097 | char type; |
1098 | int r; | |
ffc06c35 | 1099 | |
9f6eb1cd KS |
1100 | r = sd_bus_message_peek_type(m, &type, NULL); |
1101 | if (r < 0) | |
1102 | return r; | |
ffc06c35 | 1103 | |
9f6eb1cd | 1104 | switch (type) { |
8b3b6f58 | 1105 | |
9f6eb1cd | 1106 | case SD_BUS_TYPE_STRING: { |
f37f8a61 | 1107 | const char **p = userdata; |
8b3b6f58 | 1108 | const char *s; |
ffc06c35 | 1109 | |
9f6eb1cd KS |
1110 | r = sd_bus_message_read_basic(m, type, &s); |
1111 | if (r < 0) | |
8b3b6f58 | 1112 | return r; |
ffc06c35 | 1113 | |
9f6eb1cd | 1114 | if (isempty(s)) |
0b83b8a4 | 1115 | s = NULL; |
ffc06c35 | 1116 | |
a7e4861c | 1117 | if (flags & BUS_MAP_STRDUP) |
f37f8a61 YW |
1118 | return free_and_strdup((char **) userdata, s); |
1119 | ||
1120 | *p = s; | |
1121 | return 0; | |
9f6eb1cd | 1122 | } |
ffc06c35 | 1123 | |
9f6eb1cd | 1124 | case SD_BUS_TYPE_ARRAY: { |
7d6884b6 TA |
1125 | _cleanup_strv_free_ char **l = NULL; |
1126 | char ***p = userdata; | |
ffc06c35 | 1127 | |
9f6eb1cd KS |
1128 | r = bus_message_read_strv_extend(m, &l); |
1129 | if (r < 0) | |
8b3b6f58 | 1130 | return r; |
ffc06c35 | 1131 | |
130d3d22 | 1132 | return strv_free_and_replace(*p, l); |
9f6eb1cd | 1133 | } |
ffc06c35 | 1134 | |
9f6eb1cd | 1135 | case SD_BUS_TYPE_BOOLEAN: { |
a7e4861c | 1136 | int b; |
ffc06c35 | 1137 | |
9f6eb1cd KS |
1138 | r = sd_bus_message_read_basic(m, type, &b); |
1139 | if (r < 0) | |
8b3b6f58 | 1140 | return r; |
ffc06c35 | 1141 | |
a7e4861c | 1142 | if (flags & BUS_MAP_BOOLEAN_AS_BOOL) |
5d904a6a | 1143 | *(bool*) userdata = b; |
a7e4861c | 1144 | else |
5d904a6a | 1145 | *(int*) userdata = b; |
a7e4861c | 1146 | |
8b3b6f58 | 1147 | return 0; |
9f6eb1cd | 1148 | } |
ffc06c35 | 1149 | |
bdf97b8a | 1150 | case SD_BUS_TYPE_INT32: |
9f6eb1cd | 1151 | case SD_BUS_TYPE_UINT32: { |
bdf97b8a | 1152 | uint32_t u, *p = userdata; |
9f6eb1cd KS |
1153 | |
1154 | r = sd_bus_message_read_basic(m, type, &u); | |
1155 | if (r < 0) | |
8b3b6f58 | 1156 | return r; |
ffc06c35 | 1157 | |
9f6eb1cd | 1158 | *p = u; |
8b3b6f58 | 1159 | return 0; |
9f6eb1cd KS |
1160 | } |
1161 | ||
bdf97b8a | 1162 | case SD_BUS_TYPE_INT64: |
9f6eb1cd | 1163 | case SD_BUS_TYPE_UINT64: { |
bdf97b8a | 1164 | uint64_t t, *p = userdata; |
9f6eb1cd KS |
1165 | |
1166 | r = sd_bus_message_read_basic(m, type, &t); | |
1167 | if (r < 0) | |
8b3b6f58 | 1168 | return r; |
ffc06c35 | 1169 | |
9f6eb1cd | 1170 | *p = t; |
8b3b6f58 | 1171 | return 0; |
9f6eb1cd KS |
1172 | } |
1173 | ||
52e045f9 | 1174 | case SD_BUS_TYPE_DOUBLE: { |
8b3b6f58 | 1175 | double d, *p = userdata; |
52e045f9 SS |
1176 | |
1177 | r = sd_bus_message_read_basic(m, type, &d); | |
1178 | if (r < 0) | |
8b3b6f58 | 1179 | return r; |
52e045f9 SS |
1180 | |
1181 | *p = d; | |
8b3b6f58 LP |
1182 | return 0; |
1183 | }} | |
52e045f9 | 1184 | |
8b3b6f58 | 1185 | return -EOPNOTSUPP; |
9f6eb1cd KS |
1186 | } |
1187 | ||
fe506d56 LP |
1188 | int bus_message_map_all_properties( |
1189 | sd_bus_message *m, | |
1190 | const struct bus_properties_map *map, | |
a7e4861c | 1191 | unsigned flags, |
f9e0eefc | 1192 | sd_bus_error *error, |
fe506d56 LP |
1193 | void *userdata) { |
1194 | ||
9f6eb1cd KS |
1195 | int r; |
1196 | ||
aae2b488 | 1197 | assert(m); |
9f6eb1cd KS |
1198 | assert(map); |
1199 | ||
9f6eb1cd KS |
1200 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}"); |
1201 | if (r < 0) | |
1202 | return r; | |
1203 | ||
1204 | while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) { | |
1205 | const struct bus_properties_map *prop; | |
1206 | const char *member; | |
1207 | const char *contents; | |
1208 | void *v; | |
1209 | unsigned i; | |
1210 | ||
1211 | r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &member); | |
ffc06c35 KS |
1212 | if (r < 0) |
1213 | return r; | |
1214 | ||
9f6eb1cd KS |
1215 | for (i = 0, prop = NULL; map[i].member; i++) |
1216 | if (streq(map[i].member, member)) { | |
1217 | prop = &map[i]; | |
1218 | break; | |
1219 | } | |
1220 | ||
1221 | if (prop) { | |
1222 | r = sd_bus_message_peek_type(m, NULL, &contents); | |
1223 | if (r < 0) | |
1224 | return r; | |
1225 | ||
1226 | r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, contents); | |
1227 | if (r < 0) | |
1228 | return r; | |
1229 | ||
1230 | v = (uint8_t *)userdata + prop->offset; | |
27e72d6b | 1231 | if (map[i].set) |
f9e0eefc | 1232 | r = prop->set(sd_bus_message_get_bus(m), member, m, error, v); |
9f6eb1cd | 1233 | else |
a7e4861c | 1234 | r = map_basic(sd_bus_message_get_bus(m), member, m, flags, error, v); |
2b49a470 TA |
1235 | if (r < 0) |
1236 | return r; | |
9f6eb1cd KS |
1237 | |
1238 | r = sd_bus_message_exit_container(m); | |
1239 | if (r < 0) | |
1240 | return r; | |
1241 | } else { | |
1242 | r = sd_bus_message_skip(m, "v"); | |
1243 | if (r < 0) | |
6c1508b8 | 1244 | return r; |
9f6eb1cd KS |
1245 | } |
1246 | ||
ffc06c35 KS |
1247 | r = sd_bus_message_exit_container(m); |
1248 | if (r < 0) | |
1249 | return r; | |
1250 | } | |
fe506d56 LP |
1251 | if (r < 0) |
1252 | return r; | |
ffc06c35 | 1253 | |
aae2b488 DH |
1254 | return sd_bus_message_exit_container(m); |
1255 | } | |
1256 | ||
fe506d56 LP |
1257 | int bus_map_all_properties( |
1258 | sd_bus *bus, | |
1259 | const char *destination, | |
1260 | const char *path, | |
1261 | const struct bus_properties_map *map, | |
a7e4861c | 1262 | unsigned flags, |
f9e0eefc | 1263 | sd_bus_error *error, |
f37f8a61 | 1264 | sd_bus_message **reply, |
fe506d56 LP |
1265 | void *userdata) { |
1266 | ||
4afd3348 | 1267 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; |
aae2b488 DH |
1268 | int r; |
1269 | ||
1270 | assert(bus); | |
1271 | assert(destination); | |
1272 | assert(path); | |
1273 | assert(map); | |
a7e4861c | 1274 | assert(reply || (flags & BUS_MAP_STRDUP)); |
aae2b488 DH |
1275 | |
1276 | r = sd_bus_call_method( | |
1277 | bus, | |
1278 | destination, | |
1279 | path, | |
1280 | "org.freedesktop.DBus.Properties", | |
1281 | "GetAll", | |
f9e0eefc | 1282 | error, |
aae2b488 DH |
1283 | &m, |
1284 | "s", ""); | |
1285 | if (r < 0) | |
1286 | return r; | |
1287 | ||
a7e4861c | 1288 | r = bus_message_map_all_properties(m, map, flags, error, userdata); |
f37f8a61 YW |
1289 | if (r < 0) |
1290 | return r; | |
1291 | ||
1292 | if (reply) | |
1293 | *reply = sd_bus_message_ref(m); | |
1294 | ||
1295 | return r; | |
ffc06c35 KS |
1296 | } |
1297 | ||
38303498 | 1298 | int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **ret) { |
b1a4981a | 1299 | _cleanup_(sd_bus_close_unrefp) sd_bus *bus = NULL; |
d21ed1ea LP |
1300 | int r; |
1301 | ||
1302 | assert(transport >= 0); | |
1303 | assert(transport < _BUS_TRANSPORT_MAX); | |
38303498 | 1304 | assert(ret); |
d21ed1ea LP |
1305 | |
1306 | assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); | |
15411c0c | 1307 | assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); |
d21ed1ea LP |
1308 | |
1309 | switch (transport) { | |
1310 | ||
1311 | case BUS_TRANSPORT_LOCAL: | |
1312 | if (user) | |
38303498 | 1313 | r = sd_bus_default_user(&bus); |
fb507898 YW |
1314 | else { |
1315 | if (sd_booted() <= 0) { | |
1316 | /* Print a friendly message when the local system is actually not running systemd as PID 1. */ | |
1317 | log_error("System has not been booted with systemd as init system (PID 1). Can't operate."); | |
d21ed1ea | 1318 | |
fb507898 YW |
1319 | return -EHOSTDOWN; |
1320 | } | |
1321 | r = sd_bus_default_system(&bus); | |
1322 | } | |
d21ed1ea LP |
1323 | break; |
1324 | ||
1325 | case BUS_TRANSPORT_REMOTE: | |
38303498 | 1326 | r = sd_bus_open_system_remote(&bus, host); |
41dd15e4 LP |
1327 | break; |
1328 | ||
de33fc62 | 1329 | case BUS_TRANSPORT_MACHINE: |
38303498 | 1330 | r = sd_bus_open_system_machine(&bus, host); |
41dd15e4 LP |
1331 | break; |
1332 | ||
1333 | default: | |
1334 | assert_not_reached("Hmm, unknown transport type."); | |
1335 | } | |
38303498 LP |
1336 | if (r < 0) |
1337 | return r; | |
41dd15e4 | 1338 | |
38303498 LP |
1339 | r = sd_bus_set_exit_on_disconnect(bus, true); |
1340 | if (r < 0) | |
1341 | return r; | |
1342 | ||
1cc6c93a | 1343 | *ret = TAKE_PTR(bus); |
38303498 LP |
1344 | |
1345 | return 0; | |
41dd15e4 LP |
1346 | } |
1347 | ||
266f3e26 | 1348 | int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus) { |
41dd15e4 LP |
1349 | int r; |
1350 | ||
1351 | assert(transport >= 0); | |
1352 | assert(transport < _BUS_TRANSPORT_MAX); | |
1353 | assert(bus); | |
1354 | ||
1355 | assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); | |
15411c0c | 1356 | assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); |
41dd15e4 LP |
1357 | |
1358 | switch (transport) { | |
1359 | ||
1360 | case BUS_TRANSPORT_LOCAL: | |
1361 | if (user) | |
266f3e26 | 1362 | r = bus_connect_user_systemd(bus); |
fb507898 | 1363 | else { |
baaa35ad | 1364 | if (sd_booted() <= 0) |
fb507898 | 1365 | /* Print a friendly message when the local system is actually not running systemd as PID 1. */ |
baaa35ad ZJS |
1366 | return log_error_errno(SYNTHETIC_ERRNO(EHOSTDOWN), |
1367 | "System has not been booted with systemd as init system (PID 1). Can't operate."); | |
fb507898 YW |
1368 | r = bus_connect_system_systemd(bus); |
1369 | } | |
41dd15e4 LP |
1370 | break; |
1371 | ||
1372 | case BUS_TRANSPORT_REMOTE: | |
3db729cb | 1373 | r = sd_bus_open_system_remote(bus, host); |
d21ed1ea LP |
1374 | break; |
1375 | ||
de33fc62 LP |
1376 | case BUS_TRANSPORT_MACHINE: |
1377 | r = sd_bus_open_system_machine(bus, host); | |
d21ed1ea LP |
1378 | break; |
1379 | ||
1380 | default: | |
1381 | assert_not_reached("Hmm, unknown transport type."); | |
1382 | } | |
1383 | ||
1384 | return r; | |
1385 | } | |
e6504030 LP |
1386 | |
1387 | int bus_property_get_bool( | |
1388 | sd_bus *bus, | |
1389 | const char *path, | |
1390 | const char *interface, | |
1391 | const char *property, | |
1392 | sd_bus_message *reply, | |
ebcf1f97 LP |
1393 | void *userdata, |
1394 | sd_bus_error *error) { | |
e6504030 LP |
1395 | |
1396 | int b = *(bool*) userdata; | |
1397 | ||
1398 | return sd_bus_message_append_basic(reply, 'b', &b); | |
1399 | } | |
1400 | ||
43ce15ac JK |
1401 | int bus_property_set_bool( |
1402 | sd_bus *bus, | |
1403 | const char *path, | |
1404 | const char *interface, | |
1405 | const char *property, | |
1406 | sd_bus_message *value, | |
1407 | void *userdata, | |
1408 | sd_bus_error *error) { | |
1409 | ||
1410 | int b, r; | |
1411 | ||
1412 | r = sd_bus_message_read(value, "b", &b); | |
1413 | if (r < 0) | |
1414 | return r; | |
1415 | ||
5d904a6a | 1416 | *(bool*) userdata = b; |
43ce15ac JK |
1417 | return 0; |
1418 | } | |
1419 | ||
766c94ad LP |
1420 | int bus_property_get_id128( |
1421 | sd_bus *bus, | |
1422 | const char *path, | |
1423 | const char *interface, | |
1424 | const char *property, | |
1425 | sd_bus_message *reply, | |
1426 | void *userdata, | |
1427 | sd_bus_error *error) { | |
1428 | ||
1429 | sd_id128_t *id = userdata; | |
1430 | ||
1431 | if (sd_id128_is_null(*id)) /* Add an empty array if the ID is zero */ | |
1432 | return sd_bus_message_append(reply, "ay", 0); | |
1433 | else | |
4b58153d | 1434 | return sd_bus_message_append_array(reply, 'y', id->bytes, 16); |
766c94ad LP |
1435 | } |
1436 | ||
718db961 LP |
1437 | #if __SIZEOF_SIZE_T__ != 8 |
1438 | int bus_property_get_size( | |
e6504030 LP |
1439 | sd_bus *bus, |
1440 | const char *path, | |
1441 | const char *interface, | |
1442 | const char *property, | |
1443 | sd_bus_message *reply, | |
ebcf1f97 LP |
1444 | void *userdata, |
1445 | sd_bus_error *error) { | |
e6504030 | 1446 | |
718db961 | 1447 | uint64_t sz = *(size_t*) userdata; |
e6504030 | 1448 | |
718db961 | 1449 | return sd_bus_message_append_basic(reply, 't', &sz); |
e6504030 | 1450 | } |
718db961 LP |
1451 | #endif |
1452 | ||
1453 | #if __SIZEOF_LONG__ != 8 | |
1454 | int bus_property_get_long( | |
1455 | sd_bus *bus, | |
1456 | const char *path, | |
1457 | const char *interface, | |
1458 | const char *property, | |
1459 | sd_bus_message *reply, | |
ebcf1f97 LP |
1460 | void *userdata, |
1461 | sd_bus_error *error) { | |
718db961 LP |
1462 | |
1463 | int64_t l = *(long*) userdata; | |
1464 | ||
1465 | return sd_bus_message_append_basic(reply, 'x', &l); | |
1466 | } | |
1467 | ||
1468 | int bus_property_get_ulong( | |
1469 | sd_bus *bus, | |
1470 | const char *path, | |
1471 | const char *interface, | |
1472 | const char *property, | |
1473 | sd_bus_message *reply, | |
ebcf1f97 LP |
1474 | void *userdata, |
1475 | sd_bus_error *error) { | |
718db961 LP |
1476 | |
1477 | uint64_t ul = *(unsigned long*) userdata; | |
1478 | ||
1479 | return sd_bus_message_append_basic(reply, 't', &ul); | |
1480 | } | |
1481 | #endif | |
5b30bef8 | 1482 | |
98a4c30b DH |
1483 | /** |
1484 | * bus_path_encode_unique() - encode unique object path | |
1485 | * @b: bus connection or NULL | |
1486 | * @prefix: object path prefix | |
1487 | * @sender_id: unique-name of client, or NULL | |
1488 | * @external_id: external ID to be chosen by client, or NULL | |
1489 | * @ret_path: storage for encoded object path pointer | |
1490 | * | |
1491 | * Whenever we provide a bus API that allows clients to create and manage | |
1492 | * server-side objects, we need to provide a unique name for these objects. If | |
1493 | * we let the server choose the name, we suffer from a race condition: If a | |
1494 | * client creates an object asynchronously, it cannot destroy that object until | |
1495 | * it received the method reply. It cannot know the name of the new object, | |
1496 | * thus, it cannot destroy it. Furthermore, it enforces a round-trip. | |
1497 | * | |
1498 | * Therefore, many APIs allow the client to choose the unique name for newly | |
1499 | * created objects. There're two problems to solve, though: | |
1500 | * 1) Object names are usually defined via dbus object paths, which are | |
1501 | * usually globally namespaced. Therefore, multiple clients must be able | |
1502 | * to choose unique object names without interference. | |
1503 | * 2) If multiple libraries share the same bus connection, they must be | |
1504 | * able to choose unique object names without interference. | |
1505 | * The first problem is solved easily by prefixing a name with the | |
1506 | * unique-bus-name of a connection. The server side must enforce this and | |
1507 | * reject any other name. The second problem is solved by providing unique | |
1508 | * suffixes from within sd-bus. | |
1509 | * | |
1510 | * This helper allows clients to create unique object-paths. It uses the | |
1511 | * template '/prefix/sender_id/external_id' and returns the new path in | |
1512 | * @ret_path (must be freed by the caller). | |
1513 | * If @sender_id is NULL, the unique-name of @b is used. If @external_id is | |
1514 | * NULL, this function allocates a unique suffix via @b (by requesting a new | |
1515 | * cookie). If both @sender_id and @external_id are given, @b can be passed as | |
1516 | * NULL. | |
1517 | * | |
1518 | * Returns: 0 on success, negative error code on failure. | |
1519 | */ | |
1520 | int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path) { | |
1521 | _cleanup_free_ char *sender_label = NULL, *external_label = NULL; | |
1522 | char external_buf[DECIMAL_STR_MAX(uint64_t)], *p; | |
1523 | int r; | |
1524 | ||
1525 | assert_return(b || (sender_id && external_id), -EINVAL); | |
1526 | assert_return(object_path_is_valid(prefix), -EINVAL); | |
1527 | assert_return(ret_path, -EINVAL); | |
1528 | ||
1529 | if (!sender_id) { | |
1530 | r = sd_bus_get_unique_name(b, &sender_id); | |
1531 | if (r < 0) | |
1532 | return r; | |
1533 | } | |
1534 | ||
1535 | if (!external_id) { | |
1536 | xsprintf(external_buf, "%"PRIu64, ++b->cookie); | |
1537 | external_id = external_buf; | |
1538 | } | |
1539 | ||
1540 | sender_label = bus_label_escape(sender_id); | |
1541 | if (!sender_label) | |
1542 | return -ENOMEM; | |
1543 | ||
1544 | external_label = bus_label_escape(external_id); | |
1545 | if (!external_label) | |
1546 | return -ENOMEM; | |
1547 | ||
657ee2d8 | 1548 | p = path_join(prefix, sender_label, external_label); |
98a4c30b DH |
1549 | if (!p) |
1550 | return -ENOMEM; | |
1551 | ||
1552 | *ret_path = p; | |
1553 | return 0; | |
1554 | } | |
1555 | ||
1556 | /** | |
1557 | * bus_path_decode_unique() - decode unique object path | |
1558 | * @path: object path to decode | |
1559 | * @prefix: object path prefix | |
1560 | * @ret_sender: output parameter for sender-id label | |
1561 | * @ret_external: output parameter for external-id label | |
1562 | * | |
1563 | * This does the reverse of bus_path_encode_unique() (see its description for | |
1564 | * details). Both trailing labels, sender-id and external-id, are unescaped and | |
1565 | * returned in the given output parameters (the caller must free them). | |
1566 | * | |
1567 | * Note that this function returns 0 if the path does not match the template | |
1568 | * (see bus_path_encode_unique()), 1 if it matched. | |
1569 | * | |
1570 | * Returns: Negative error code on failure, 0 if the given object path does not | |
1571 | * match the template (return parameters are set to NULL), 1 if it was | |
1572 | * parsed successfully (return parameters contain allocated labels). | |
1573 | */ | |
1574 | int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external) { | |
1575 | const char *p, *q; | |
1576 | char *sender, *external; | |
1577 | ||
1578 | assert(object_path_is_valid(path)); | |
1579 | assert(object_path_is_valid(prefix)); | |
1580 | assert(ret_sender); | |
1581 | assert(ret_external); | |
1582 | ||
1583 | p = object_path_startswith(path, prefix); | |
1584 | if (!p) { | |
1585 | *ret_sender = NULL; | |
1586 | *ret_external = NULL; | |
1587 | return 0; | |
1588 | } | |
1589 | ||
1590 | q = strchr(p, '/'); | |
1591 | if (!q) { | |
1592 | *ret_sender = NULL; | |
1593 | *ret_external = NULL; | |
1594 | return 0; | |
1595 | } | |
1596 | ||
1597 | sender = bus_label_unescape_n(p, q - p); | |
1598 | external = bus_label_unescape(q + 1); | |
1599 | if (!sender || !external) { | |
1600 | free(sender); | |
1601 | free(external); | |
1602 | return -ENOMEM; | |
1603 | } | |
1604 | ||
1605 | *ret_sender = sender; | |
1606 | *ret_external = external; | |
1607 | return 1; | |
1608 | } | |
057171ef | 1609 | |
c9d031c3 EV |
1610 | int bus_property_get_rlimit( |
1611 | sd_bus *bus, | |
1612 | const char *path, | |
1613 | const char *interface, | |
1614 | const char *property, | |
1615 | sd_bus_message *reply, | |
1616 | void *userdata, | |
1617 | sd_bus_error *error) { | |
1618 | ||
6550c24c | 1619 | const char *is_soft; |
c9d031c3 EV |
1620 | struct rlimit *rl; |
1621 | uint64_t u; | |
1622 | rlim_t x; | |
1623 | ||
1624 | assert(bus); | |
1625 | assert(reply); | |
1626 | assert(userdata); | |
1627 | ||
147f6858 | 1628 | is_soft = endswith(property, "Soft"); |
6550c24c | 1629 | |
c9d031c3 EV |
1630 | rl = *(struct rlimit**) userdata; |
1631 | if (rl) | |
147f6858 | 1632 | x = is_soft ? rl->rlim_cur : rl->rlim_max; |
c9d031c3 EV |
1633 | else { |
1634 | struct rlimit buf = {}; | |
6550c24c | 1635 | const char *s, *p; |
c9d031c3 | 1636 | int z; |
147f6858 | 1637 | |
6550c24c | 1638 | /* Chop off "Soft" suffix */ |
147f6858 | 1639 | s = is_soft ? strndupa(property, is_soft - property) : property; |
c9d031c3 | 1640 | |
6550c24c LP |
1641 | /* Skip over any prefix, such as "Default" */ |
1642 | assert_se(p = strstr(s, "Limit")); | |
1643 | ||
1644 | z = rlimit_from_string(p + 5); | |
c9d031c3 EV |
1645 | assert(z >= 0); |
1646 | ||
6550c24c | 1647 | (void) getrlimit(z, &buf); |
147f6858 | 1648 | x = is_soft ? buf.rlim_cur : buf.rlim_max; |
c9d031c3 EV |
1649 | } |
1650 | ||
6550c24c LP |
1651 | /* rlim_t might have different sizes, let's map RLIMIT_INFINITY to (uint64_t) -1, so that it is the same on all |
1652 | * archs */ | |
c9d031c3 EV |
1653 | u = x == RLIM_INFINITY ? (uint64_t) -1 : (uint64_t) x; |
1654 | ||
1655 | return sd_bus_message_append(reply, "t", u); | |
1656 | } | |
984794ba LP |
1657 | |
1658 | int bus_track_add_name_many(sd_bus_track *t, char **l) { | |
1659 | int r = 0; | |
1660 | char **i; | |
1661 | ||
1662 | assert(t); | |
1663 | ||
1664 | /* Continues adding after failure, and returns the first failure. */ | |
1665 | ||
1666 | STRV_FOREACH(i, l) { | |
1667 | int k; | |
1668 | ||
1669 | k = sd_bus_track_add_name(t, *i); | |
1670 | if (k < 0 && r >= 0) | |
1671 | r = k; | |
1672 | } | |
1673 | ||
1674 | return r; | |
1675 | } | |
d7afd945 | 1676 | |
0ddf50ff | 1677 | int bus_open_system_watch_bind_with_description(sd_bus **ret, const char *description) { |
b1a4981a | 1678 | _cleanup_(sd_bus_close_unrefp) sd_bus *bus = NULL; |
d7afd945 LP |
1679 | const char *e; |
1680 | int r; | |
1681 | ||
1682 | assert(ret); | |
1683 | ||
61252bae ZJS |
1684 | /* Match like sd_bus_open_system(), but with the "watch_bind" feature and the Connected() signal |
1685 | * turned on. */ | |
d7afd945 LP |
1686 | |
1687 | r = sd_bus_new(&bus); | |
1688 | if (r < 0) | |
1689 | return r; | |
1690 | ||
0ddf50ff YW |
1691 | if (description) { |
1692 | r = sd_bus_set_description(bus, description); | |
1693 | if (r < 0) | |
1694 | return r; | |
1695 | } | |
1696 | ||
d7afd945 LP |
1697 | e = secure_getenv("DBUS_SYSTEM_BUS_ADDRESS"); |
1698 | if (!e) | |
1699 | e = DEFAULT_SYSTEM_BUS_ADDRESS; | |
1700 | ||
1701 | r = sd_bus_set_address(bus, e); | |
1702 | if (r < 0) | |
1703 | return r; | |
1704 | ||
1705 | r = sd_bus_set_bus_client(bus, true); | |
1706 | if (r < 0) | |
1707 | return r; | |
1708 | ||
d7afd945 LP |
1709 | r = sd_bus_negotiate_creds(bus, true, SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_EFFECTIVE_CAPS); |
1710 | if (r < 0) | |
1711 | return r; | |
1712 | ||
1713 | r = sd_bus_set_watch_bind(bus, true); | |
1714 | if (r < 0) | |
1715 | return r; | |
1716 | ||
1717 | r = sd_bus_set_connected_signal(bus, true); | |
1718 | if (r < 0) | |
1719 | return r; | |
1720 | ||
1721 | r = sd_bus_start(bus); | |
1722 | if (r < 0) | |
1723 | return r; | |
1724 | ||
1cc6c93a | 1725 | *ret = TAKE_PTR(bus); |
d7afd945 LP |
1726 | |
1727 | return 0; | |
1728 | } | |
906cb2eb | 1729 | |
19017acb LP |
1730 | int bus_reply_pair_array(sd_bus_message *m, char **l) { |
1731 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
1732 | char **k, **v; | |
1733 | int r; | |
1734 | ||
1735 | assert(m); | |
1736 | ||
61252bae ZJS |
1737 | /* Reply to the specified message with a message containing a dictionary put together from the |
1738 | * specified strv */ | |
19017acb LP |
1739 | |
1740 | r = sd_bus_message_new_method_return(m, &reply); | |
1741 | if (r < 0) | |
1742 | return r; | |
1743 | ||
1744 | r = sd_bus_message_open_container(reply, 'a', "{ss}"); | |
1745 | if (r < 0) | |
1746 | return r; | |
1747 | ||
1748 | STRV_FOREACH_PAIR(k, v, l) { | |
1749 | r = sd_bus_message_append(reply, "{ss}", *k, *v); | |
1750 | if (r < 0) | |
1751 | return r; | |
1752 | } | |
1753 | ||
1754 | r = sd_bus_message_close_container(reply); | |
1755 | if (r < 0) | |
1756 | return r; | |
1757 | ||
1758 | return sd_bus_send(NULL, reply, NULL); | |
1759 | } | |
2a66c2a1 LP |
1760 | |
1761 | static void bus_message_unref_wrapper(void *m) { | |
1762 | sd_bus_message_unref(m); | |
1763 | } | |
1764 | ||
1765 | const struct hash_ops bus_message_hash_ops = { | |
1766 | .hash = trivial_hash_func, | |
1767 | .compare = trivial_compare_func, | |
1768 | .free_value = bus_message_unref_wrapper, | |
1769 | }; |