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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
40ca29a1 | 2 | |
a8fbdf54 TA |
3 | #include <errno.h> |
4 | #include <fcntl.h> | |
5 | #include <inttypes.h> | |
a8fbdf54 | 6 | #include <stdlib.h> |
a8fbdf54 TA |
7 | #include <sys/ioctl.h> |
8 | #include <sys/resource.h> | |
0c842e0a | 9 | #include <sys/socket.h> |
a8fbdf54 | 10 | #include <unistd.h> |
0c842e0a | 11 | |
4f5dd394 | 12 | #include "sd-bus.h" |
ebd011d9 LP |
13 | #include "sd-daemon.h" |
14 | #include "sd-event.h" | |
a8fbdf54 | 15 | #include "sd-id128.h" |
d53d9474 | 16 | |
73d3ac8e | 17 | #include "bus-common-errors.h" |
d53d9474 LP |
18 | #include "bus-internal.h" |
19 | #include "bus-label.h" | |
3ffd4af2 | 20 | #include "bus-util.h" |
657ee2d8 | 21 | #include "path-util.h" |
269e4d2d | 22 | #include "socket-util.h" |
15a5e950 | 23 | #include "stdio-util.h" |
40ca29a1 | 24 | |
19070062 | 25 | static int name_owner_change_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { |
40ca29a1 LP |
26 | sd_event *e = userdata; |
27 | ||
40ca29a1 LP |
28 | assert(m); |
29 | assert(e); | |
30 | ||
19070062 | 31 | sd_bus_close(sd_bus_message_get_bus(m)); |
6203e07a | 32 | sd_event_exit(e, 0); |
b27adf35 | 33 | |
40ca29a1 LP |
34 | return 1; |
35 | } | |
36 | ||
6203e07a | 37 | int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name) { |
75152a4d | 38 | const char *match; |
11846aa7 | 39 | const char *unique; |
40ca29a1 LP |
40 | int r; |
41 | ||
42 | assert(e); | |
43 | assert(bus); | |
44 | assert(name); | |
45 | ||
6203e07a LP |
46 | /* We unregister the name here and then wait for the |
47 | * NameOwnerChanged signal for this event to arrive before we | |
48 | * quit. We do this in order to make sure that any queued | |
49 | * requests are still processed before we really exit. */ | |
50 | ||
11846aa7 | 51 | r = sd_bus_get_unique_name(bus, &unique); |
40ca29a1 LP |
52 | if (r < 0) |
53 | return r; | |
54 | ||
75152a4d LP |
55 | match = strjoina( |
56 | "sender='org.freedesktop.DBus'," | |
57 | "type='signal'," | |
58 | "interface='org.freedesktop.DBus'," | |
59 | "member='NameOwnerChanged'," | |
60 | "path='/org/freedesktop/DBus'," | |
61 | "arg0='", name, "',", | |
62 | "arg1='", unique, "',", | |
63 | "arg2=''"); | |
64 | ||
65 | r = sd_bus_add_match_async(bus, NULL, match, name_owner_change_callback, NULL, e); | |
40ca29a1 LP |
66 | if (r < 0) |
67 | return r; | |
68 | ||
75152a4d | 69 | r = sd_bus_release_name_async(bus, NULL, name, NULL, NULL); |
40ca29a1 LP |
70 | if (r < 0) |
71 | return r; | |
72 | ||
40ca29a1 LP |
73 | return 0; |
74 | } | |
75 | ||
37224a5f LP |
76 | int bus_event_loop_with_idle( |
77 | sd_event *e, | |
78 | sd_bus *bus, | |
79 | const char *name, | |
80 | usec_t timeout, | |
81 | check_idle_t check_idle, | |
82 | void *userdata) { | |
40ca29a1 | 83 | bool exiting = false; |
6203e07a | 84 | int r, code; |
40ca29a1 LP |
85 | |
86 | assert(e); | |
87 | assert(bus); | |
88 | assert(name); | |
89 | ||
90 | for (;;) { | |
37224a5f LP |
91 | bool idle; |
92 | ||
40ca29a1 LP |
93 | r = sd_event_get_state(e); |
94 | if (r < 0) | |
95 | return r; | |
40ca29a1 LP |
96 | if (r == SD_EVENT_FINISHED) |
97 | break; | |
98 | ||
37224a5f LP |
99 | if (check_idle) |
100 | idle = check_idle(userdata); | |
101 | else | |
102 | idle = true; | |
103 | ||
104 | r = sd_event_run(e, exiting || !idle ? (uint64_t) -1 : timeout); | |
40ca29a1 LP |
105 | if (r < 0) |
106 | return r; | |
107 | ||
a8ba6cd1 | 108 | if (r == 0 && !exiting && idle) { |
99cde098 ZJS |
109 | /* Inform the service manager that we are going down, so that it will queue all |
110 | * further start requests, instead of assuming we are already running. */ | |
111 | sd_notify(false, "STOPPING=1"); | |
b27adf35 | 112 | |
99cde098 | 113 | r = bus_async_unregister_and_exit(e, bus, name); |
40ca29a1 LP |
114 | if (r < 0) |
115 | return r; | |
116 | ||
99cde098 ZJS |
117 | exiting = true; |
118 | continue; | |
40ca29a1 LP |
119 | } |
120 | } | |
121 | ||
6203e07a LP |
122 | r = sd_event_get_exit_code(e, &code); |
123 | if (r < 0) | |
124 | return r; | |
125 | ||
126 | return code; | |
40ca29a1 LP |
127 | } |
128 | ||
5fd38859 | 129 | int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error) { |
4afd3348 | 130 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *rep = NULL; |
5fd38859 DH |
131 | int r, has_owner = 0; |
132 | ||
133 | assert(c); | |
134 | assert(name); | |
135 | ||
136 | r = sd_bus_call_method(c, | |
137 | "org.freedesktop.DBus", | |
138 | "/org/freedesktop/dbus", | |
139 | "org.freedesktop.DBus", | |
140 | "NameHasOwner", | |
141 | error, | |
142 | &rep, | |
143 | "s", | |
144 | name); | |
145 | if (r < 0) | |
146 | return r; | |
147 | ||
148 | r = sd_bus_message_read_basic(rep, 'b', &has_owner); | |
149 | if (r < 0) | |
150 | return sd_bus_error_set_errno(error, r); | |
151 | ||
152 | return has_owner; | |
153 | } | |
154 | ||
73d3ac8e ZJS |
155 | bool bus_error_is_unknown_service(const sd_bus_error *error) { |
156 | return sd_bus_error_has_names(error, | |
157 | SD_BUS_ERROR_SERVICE_UNKNOWN, | |
158 | SD_BUS_ERROR_NAME_HAS_NO_OWNER, | |
159 | BUS_ERROR_NO_SUCH_UNIT); | |
160 | } | |
161 | ||
718db961 | 162 | int bus_check_peercred(sd_bus *c) { |
0c842e0a | 163 | struct ucred ucred; |
3e641e36 | 164 | int fd, r; |
0c842e0a TG |
165 | |
166 | assert(c); | |
167 | ||
168 | fd = sd_bus_get_fd(c); | |
0f8bd8de LP |
169 | if (fd < 0) |
170 | return fd; | |
0c842e0a | 171 | |
3e641e36 LP |
172 | r = getpeercred(fd, &ucred); |
173 | if (r < 0) | |
174 | return r; | |
0c842e0a TG |
175 | |
176 | if (ucred.uid != 0 && ucred.uid != geteuid()) | |
177 | return -EPERM; | |
178 | ||
179 | return 1; | |
180 | } | |
181 | ||
266f3e26 | 182 | int bus_connect_system_systemd(sd_bus **_bus) { |
b1a4981a | 183 | _cleanup_(sd_bus_close_unrefp) sd_bus *bus = NULL; |
0c842e0a | 184 | int r; |
0c842e0a TG |
185 | |
186 | assert(_bus); | |
187 | ||
0f8bd8de | 188 | if (geteuid() != 0) |
266f3e26 | 189 | return sd_bus_default_system(_bus); |
a1da8583 | 190 | |
a132bef0 ZJS |
191 | /* If we are root then let's talk directly to the system |
192 | * instance, instead of going via the bus */ | |
a6aa8912 LP |
193 | |
194 | r = sd_bus_new(&bus); | |
0f8bd8de LP |
195 | if (r < 0) |
196 | return r; | |
a1da8583 | 197 | |
a6aa8912 LP |
198 | r = sd_bus_set_address(bus, "unix:path=/run/systemd/private"); |
199 | if (r < 0) | |
200 | return r; | |
201 | ||
202 | r = sd_bus_start(bus); | |
203 | if (r < 0) | |
266f3e26 | 204 | return sd_bus_default_system(_bus); |
a6aa8912 | 205 | |
0f8bd8de | 206 | r = bus_check_peercred(bus); |
a1da8583 TG |
207 | if (r < 0) |
208 | return r; | |
209 | ||
1cc6c93a | 210 | *_bus = TAKE_PTR(bus); |
0f8bd8de | 211 | |
a1da8583 TG |
212 | return 0; |
213 | } | |
214 | ||
266f3e26 | 215 | int bus_connect_user_systemd(sd_bus **_bus) { |
b1a4981a | 216 | _cleanup_(sd_bus_close_unrefp) sd_bus *bus = NULL; |
a6aa8912 | 217 | _cleanup_free_ char *ee = NULL; |
41dd15e4 LP |
218 | const char *e; |
219 | int r; | |
220 | ||
41dd15e4 LP |
221 | assert(_bus); |
222 | ||
223 | e = secure_getenv("XDG_RUNTIME_DIR"); | |
537220d9 | 224 | if (!e) |
266f3e26 | 225 | return sd_bus_default_user(_bus); |
537220d9 | 226 | |
a6aa8912 LP |
227 | ee = bus_address_escape(e); |
228 | if (!ee) | |
537220d9 | 229 | return -ENOMEM; |
41dd15e4 LP |
230 | |
231 | r = sd_bus_new(&bus); | |
232 | if (r < 0) | |
233 | return r; | |
234 | ||
605405c6 | 235 | bus->address = strjoin("unix:path=", ee, "/systemd/private"); |
a6aa8912 LP |
236 | if (!bus->address) |
237 | return -ENOMEM; | |
41dd15e4 LP |
238 | |
239 | r = sd_bus_start(bus); | |
240 | if (r < 0) | |
266f3e26 | 241 | return sd_bus_default_user(_bus); |
41dd15e4 LP |
242 | |
243 | r = bus_check_peercred(bus); | |
244 | if (r < 0) | |
245 | return r; | |
246 | ||
1cc6c93a | 247 | *_bus = TAKE_PTR(bus); |
41dd15e4 LP |
248 | |
249 | return 0; | |
250 | } | |
251 | ||
38303498 | 252 | int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **ret) { |
b1a4981a | 253 | _cleanup_(sd_bus_close_unrefp) sd_bus *bus = NULL; |
d21ed1ea LP |
254 | int r; |
255 | ||
256 | assert(transport >= 0); | |
257 | assert(transport < _BUS_TRANSPORT_MAX); | |
38303498 | 258 | assert(ret); |
d21ed1ea LP |
259 | |
260 | assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); | |
15411c0c | 261 | assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); |
d21ed1ea LP |
262 | |
263 | switch (transport) { | |
264 | ||
265 | case BUS_TRANSPORT_LOCAL: | |
266 | if (user) | |
38303498 | 267 | r = sd_bus_default_user(&bus); |
fb507898 | 268 | else { |
d7a0f1f4 | 269 | if (sd_booted() <= 0) |
fb507898 | 270 | /* Print a friendly message when the local system is actually not running systemd as PID 1. */ |
d7a0f1f4 FS |
271 | return log_error_errno(SYNTHETIC_ERRNO(EHOSTDOWN), |
272 | "System has not been booted with systemd as init system (PID 1). Can't operate."); | |
fb507898 YW |
273 | r = sd_bus_default_system(&bus); |
274 | } | |
d21ed1ea LP |
275 | break; |
276 | ||
277 | case BUS_TRANSPORT_REMOTE: | |
38303498 | 278 | r = sd_bus_open_system_remote(&bus, host); |
41dd15e4 LP |
279 | break; |
280 | ||
de33fc62 | 281 | case BUS_TRANSPORT_MACHINE: |
38303498 | 282 | r = sd_bus_open_system_machine(&bus, host); |
41dd15e4 LP |
283 | break; |
284 | ||
285 | default: | |
286 | assert_not_reached("Hmm, unknown transport type."); | |
287 | } | |
38303498 LP |
288 | if (r < 0) |
289 | return r; | |
41dd15e4 | 290 | |
38303498 LP |
291 | r = sd_bus_set_exit_on_disconnect(bus, true); |
292 | if (r < 0) | |
293 | return r; | |
294 | ||
1cc6c93a | 295 | *ret = TAKE_PTR(bus); |
38303498 LP |
296 | |
297 | return 0; | |
41dd15e4 LP |
298 | } |
299 | ||
266f3e26 | 300 | int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus) { |
41dd15e4 LP |
301 | int r; |
302 | ||
303 | assert(transport >= 0); | |
304 | assert(transport < _BUS_TRANSPORT_MAX); | |
305 | assert(bus); | |
306 | ||
307 | assert_return((transport == BUS_TRANSPORT_LOCAL) == !host, -EINVAL); | |
15411c0c | 308 | assert_return(transport == BUS_TRANSPORT_LOCAL || !user, -EOPNOTSUPP); |
41dd15e4 LP |
309 | |
310 | switch (transport) { | |
311 | ||
312 | case BUS_TRANSPORT_LOCAL: | |
313 | if (user) | |
266f3e26 | 314 | r = bus_connect_user_systemd(bus); |
fb507898 | 315 | else { |
baaa35ad | 316 | if (sd_booted() <= 0) |
fb507898 | 317 | /* Print a friendly message when the local system is actually not running systemd as PID 1. */ |
baaa35ad ZJS |
318 | return log_error_errno(SYNTHETIC_ERRNO(EHOSTDOWN), |
319 | "System has not been booted with systemd as init system (PID 1). Can't operate."); | |
fb507898 YW |
320 | r = bus_connect_system_systemd(bus); |
321 | } | |
41dd15e4 LP |
322 | break; |
323 | ||
324 | case BUS_TRANSPORT_REMOTE: | |
3db729cb | 325 | r = sd_bus_open_system_remote(bus, host); |
d21ed1ea LP |
326 | break; |
327 | ||
de33fc62 LP |
328 | case BUS_TRANSPORT_MACHINE: |
329 | r = sd_bus_open_system_machine(bus, host); | |
d21ed1ea LP |
330 | break; |
331 | ||
332 | default: | |
333 | assert_not_reached("Hmm, unknown transport type."); | |
334 | } | |
335 | ||
336 | return r; | |
337 | } | |
e6504030 | 338 | |
98a4c30b DH |
339 | /** |
340 | * bus_path_encode_unique() - encode unique object path | |
341 | * @b: bus connection or NULL | |
342 | * @prefix: object path prefix | |
343 | * @sender_id: unique-name of client, or NULL | |
344 | * @external_id: external ID to be chosen by client, or NULL | |
345 | * @ret_path: storage for encoded object path pointer | |
346 | * | |
347 | * Whenever we provide a bus API that allows clients to create and manage | |
348 | * server-side objects, we need to provide a unique name for these objects. If | |
349 | * we let the server choose the name, we suffer from a race condition: If a | |
350 | * client creates an object asynchronously, it cannot destroy that object until | |
351 | * it received the method reply. It cannot know the name of the new object, | |
352 | * thus, it cannot destroy it. Furthermore, it enforces a round-trip. | |
353 | * | |
354 | * Therefore, many APIs allow the client to choose the unique name for newly | |
355 | * created objects. There're two problems to solve, though: | |
356 | * 1) Object names are usually defined via dbus object paths, which are | |
357 | * usually globally namespaced. Therefore, multiple clients must be able | |
358 | * to choose unique object names without interference. | |
359 | * 2) If multiple libraries share the same bus connection, they must be | |
360 | * able to choose unique object names without interference. | |
361 | * The first problem is solved easily by prefixing a name with the | |
362 | * unique-bus-name of a connection. The server side must enforce this and | |
363 | * reject any other name. The second problem is solved by providing unique | |
364 | * suffixes from within sd-bus. | |
365 | * | |
366 | * This helper allows clients to create unique object-paths. It uses the | |
367 | * template '/prefix/sender_id/external_id' and returns the new path in | |
368 | * @ret_path (must be freed by the caller). | |
369 | * If @sender_id is NULL, the unique-name of @b is used. If @external_id is | |
370 | * NULL, this function allocates a unique suffix via @b (by requesting a new | |
371 | * cookie). If both @sender_id and @external_id are given, @b can be passed as | |
372 | * NULL. | |
373 | * | |
374 | * Returns: 0 on success, negative error code on failure. | |
375 | */ | |
376 | int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path) { | |
377 | _cleanup_free_ char *sender_label = NULL, *external_label = NULL; | |
378 | char external_buf[DECIMAL_STR_MAX(uint64_t)], *p; | |
379 | int r; | |
380 | ||
381 | assert_return(b || (sender_id && external_id), -EINVAL); | |
5453a4b1 | 382 | assert_return(sd_bus_object_path_is_valid(prefix), -EINVAL); |
98a4c30b DH |
383 | assert_return(ret_path, -EINVAL); |
384 | ||
385 | if (!sender_id) { | |
386 | r = sd_bus_get_unique_name(b, &sender_id); | |
387 | if (r < 0) | |
388 | return r; | |
389 | } | |
390 | ||
391 | if (!external_id) { | |
392 | xsprintf(external_buf, "%"PRIu64, ++b->cookie); | |
393 | external_id = external_buf; | |
394 | } | |
395 | ||
396 | sender_label = bus_label_escape(sender_id); | |
397 | if (!sender_label) | |
398 | return -ENOMEM; | |
399 | ||
400 | external_label = bus_label_escape(external_id); | |
401 | if (!external_label) | |
402 | return -ENOMEM; | |
403 | ||
657ee2d8 | 404 | p = path_join(prefix, sender_label, external_label); |
98a4c30b DH |
405 | if (!p) |
406 | return -ENOMEM; | |
407 | ||
408 | *ret_path = p; | |
409 | return 0; | |
410 | } | |
411 | ||
412 | /** | |
413 | * bus_path_decode_unique() - decode unique object path | |
414 | * @path: object path to decode | |
415 | * @prefix: object path prefix | |
416 | * @ret_sender: output parameter for sender-id label | |
417 | * @ret_external: output parameter for external-id label | |
418 | * | |
419 | * This does the reverse of bus_path_encode_unique() (see its description for | |
420 | * details). Both trailing labels, sender-id and external-id, are unescaped and | |
421 | * returned in the given output parameters (the caller must free them). | |
422 | * | |
423 | * Note that this function returns 0 if the path does not match the template | |
424 | * (see bus_path_encode_unique()), 1 if it matched. | |
425 | * | |
426 | * Returns: Negative error code on failure, 0 if the given object path does not | |
427 | * match the template (return parameters are set to NULL), 1 if it was | |
428 | * parsed successfully (return parameters contain allocated labels). | |
429 | */ | |
430 | int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external) { | |
431 | const char *p, *q; | |
432 | char *sender, *external; | |
433 | ||
5453a4b1 ZJS |
434 | assert(sd_bus_object_path_is_valid(path)); |
435 | assert(sd_bus_object_path_is_valid(prefix)); | |
98a4c30b DH |
436 | assert(ret_sender); |
437 | assert(ret_external); | |
438 | ||
439 | p = object_path_startswith(path, prefix); | |
440 | if (!p) { | |
441 | *ret_sender = NULL; | |
442 | *ret_external = NULL; | |
443 | return 0; | |
444 | } | |
445 | ||
446 | q = strchr(p, '/'); | |
447 | if (!q) { | |
448 | *ret_sender = NULL; | |
449 | *ret_external = NULL; | |
450 | return 0; | |
451 | } | |
452 | ||
453 | sender = bus_label_unescape_n(p, q - p); | |
454 | external = bus_label_unescape(q + 1); | |
455 | if (!sender || !external) { | |
456 | free(sender); | |
457 | free(external); | |
458 | return -ENOMEM; | |
459 | } | |
460 | ||
461 | *ret_sender = sender; | |
462 | *ret_external = external; | |
463 | return 1; | |
464 | } | |
057171ef | 465 | |
984794ba LP |
466 | int bus_track_add_name_many(sd_bus_track *t, char **l) { |
467 | int r = 0; | |
468 | char **i; | |
469 | ||
470 | assert(t); | |
471 | ||
472 | /* Continues adding after failure, and returns the first failure. */ | |
473 | ||
474 | STRV_FOREACH(i, l) { | |
475 | int k; | |
476 | ||
477 | k = sd_bus_track_add_name(t, *i); | |
478 | if (k < 0 && r >= 0) | |
479 | r = k; | |
480 | } | |
481 | ||
482 | return r; | |
483 | } | |
d7afd945 | 484 | |
0ddf50ff | 485 | int bus_open_system_watch_bind_with_description(sd_bus **ret, const char *description) { |
b1a4981a | 486 | _cleanup_(sd_bus_close_unrefp) sd_bus *bus = NULL; |
d7afd945 LP |
487 | const char *e; |
488 | int r; | |
489 | ||
490 | assert(ret); | |
491 | ||
61252bae ZJS |
492 | /* Match like sd_bus_open_system(), but with the "watch_bind" feature and the Connected() signal |
493 | * turned on. */ | |
d7afd945 LP |
494 | |
495 | r = sd_bus_new(&bus); | |
496 | if (r < 0) | |
497 | return r; | |
498 | ||
0ddf50ff YW |
499 | if (description) { |
500 | r = sd_bus_set_description(bus, description); | |
501 | if (r < 0) | |
502 | return r; | |
503 | } | |
504 | ||
d7afd945 LP |
505 | e = secure_getenv("DBUS_SYSTEM_BUS_ADDRESS"); |
506 | if (!e) | |
507 | e = DEFAULT_SYSTEM_BUS_ADDRESS; | |
508 | ||
509 | r = sd_bus_set_address(bus, e); | |
510 | if (r < 0) | |
511 | return r; | |
512 | ||
513 | r = sd_bus_set_bus_client(bus, true); | |
514 | if (r < 0) | |
515 | return r; | |
516 | ||
d7afd945 LP |
517 | r = sd_bus_negotiate_creds(bus, true, SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_EFFECTIVE_CAPS); |
518 | if (r < 0) | |
519 | return r; | |
520 | ||
521 | r = sd_bus_set_watch_bind(bus, true); | |
522 | if (r < 0) | |
523 | return r; | |
524 | ||
525 | r = sd_bus_set_connected_signal(bus, true); | |
526 | if (r < 0) | |
527 | return r; | |
528 | ||
529 | r = sd_bus_start(bus); | |
530 | if (r < 0) | |
531 | return r; | |
532 | ||
1cc6c93a | 533 | *ret = TAKE_PTR(bus); |
d7afd945 LP |
534 | |
535 | return 0; | |
536 | } | |
906cb2eb | 537 | |
19017acb LP |
538 | int bus_reply_pair_array(sd_bus_message *m, char **l) { |
539 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
540 | char **k, **v; | |
541 | int r; | |
542 | ||
543 | assert(m); | |
544 | ||
61252bae ZJS |
545 | /* Reply to the specified message with a message containing a dictionary put together from the |
546 | * specified strv */ | |
19017acb LP |
547 | |
548 | r = sd_bus_message_new_method_return(m, &reply); | |
549 | if (r < 0) | |
550 | return r; | |
551 | ||
552 | r = sd_bus_message_open_container(reply, 'a', "{ss}"); | |
553 | if (r < 0) | |
554 | return r; | |
555 | ||
556 | STRV_FOREACH_PAIR(k, v, l) { | |
557 | r = sd_bus_message_append(reply, "{ss}", *k, *v); | |
558 | if (r < 0) | |
559 | return r; | |
560 | } | |
561 | ||
562 | r = sd_bus_message_close_container(reply); | |
563 | if (r < 0) | |
564 | return r; | |
565 | ||
566 | return sd_bus_send(NULL, reply, NULL); | |
567 | } | |
2a66c2a1 LP |
568 | |
569 | static void bus_message_unref_wrapper(void *m) { | |
570 | sd_bus_message_unref(m); | |
571 | } | |
572 | ||
573 | const struct hash_ops bus_message_hash_ops = { | |
574 | .hash = trivial_hash_func, | |
575 | .compare = trivial_compare_func, | |
576 | .free_value = bus_message_unref_wrapper, | |
577 | }; |