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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
3abaabda LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2016 Lennart Poettering | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU Lesser General Public License as published by | |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
21 | #include "alloc-util.h" | |
04b764bf | 22 | #include "bus-common-errors.h" |
3abaabda LP |
23 | #include "bus-util.h" |
24 | #include "parse-util.h" | |
25 | #include "resolve-util.h" | |
26 | #include "resolved-bus.h" | |
27 | #include "resolved-link-bus.h" | |
7207052d | 28 | #include "resolved-resolv-conf.h" |
3abaabda LP |
29 | #include "strv.h" |
30 | ||
a3712979 LP |
31 | static int property_get_dnssec_mode( |
32 | sd_bus *bus, | |
33 | const char *path, | |
34 | const char *interface, | |
35 | const char *property, | |
36 | sd_bus_message *reply, | |
37 | void *userdata, | |
38 | sd_bus_error *error) { | |
39 | ||
40 | Link *l = userdata; | |
41 | ||
42 | assert(reply); | |
43 | assert(l); | |
44 | ||
45 | return sd_bus_message_append(reply, "s", dnssec_mode_to_string(link_get_dnssec_mode(l))); | |
46 | } | |
3abaabda LP |
47 | |
48 | static int property_get_dns( | |
49 | sd_bus *bus, | |
50 | const char *path, | |
51 | const char *interface, | |
52 | const char *property, | |
53 | sd_bus_message *reply, | |
54 | void *userdata, | |
55 | sd_bus_error *error) { | |
56 | ||
57 | Link *l = userdata; | |
58 | DnsServer *s; | |
59 | int r; | |
60 | ||
61 | assert(reply); | |
62 | assert(l); | |
63 | ||
64 | r = sd_bus_message_open_container(reply, 'a', "(iay)"); | |
65 | if (r < 0) | |
66 | return r; | |
67 | ||
68 | LIST_FOREACH(servers, s, l->dns_servers) { | |
69 | r = bus_dns_server_append(reply, s, false); | |
70 | if (r < 0) | |
71 | return r; | |
72 | } | |
73 | ||
74 | return sd_bus_message_close_container(reply); | |
75 | } | |
76 | ||
77 | static int property_get_domains( | |
78 | sd_bus *bus, | |
79 | const char *path, | |
80 | const char *interface, | |
81 | const char *property, | |
82 | sd_bus_message *reply, | |
83 | void *userdata, | |
84 | sd_bus_error *error) { | |
85 | ||
86 | Link *l = userdata; | |
87 | DnsSearchDomain *d; | |
88 | int r; | |
89 | ||
90 | assert(reply); | |
91 | assert(l); | |
92 | ||
ad44b56b | 93 | r = sd_bus_message_open_container(reply, 'a', "(sb)"); |
3abaabda LP |
94 | if (r < 0) |
95 | return r; | |
96 | ||
97 | LIST_FOREACH(domains, d, l->search_domains) { | |
ad44b56b | 98 | r = sd_bus_message_append(reply, "(sb)", d->name, d->route_only); |
3abaabda LP |
99 | if (r < 0) |
100 | return r; | |
101 | } | |
102 | ||
103 | return sd_bus_message_close_container(reply); | |
104 | } | |
105 | ||
106 | static int property_get_scopes_mask( | |
107 | sd_bus *bus, | |
108 | const char *path, | |
109 | const char *interface, | |
110 | const char *property, | |
111 | sd_bus_message *reply, | |
112 | void *userdata, | |
113 | sd_bus_error *error) { | |
114 | ||
115 | Link *l = userdata; | |
116 | uint64_t mask; | |
117 | ||
118 | assert(reply); | |
119 | assert(l); | |
120 | ||
121 | mask = (l->unicast_scope ? SD_RESOLVED_DNS : 0) | | |
122 | (l->llmnr_ipv4_scope ? SD_RESOLVED_LLMNR_IPV4 : 0) | | |
123 | (l->llmnr_ipv6_scope ? SD_RESOLVED_LLMNR_IPV6 : 0) | | |
124 | (l->mdns_ipv4_scope ? SD_RESOLVED_MDNS_IPV4 : 0) | | |
125 | (l->mdns_ipv6_scope ? SD_RESOLVED_MDNS_IPV6 : 0); | |
126 | ||
127 | return sd_bus_message_append(reply, "t", mask); | |
128 | } | |
129 | ||
130 | static int property_get_ntas( | |
131 | sd_bus *bus, | |
132 | const char *path, | |
133 | const char *interface, | |
134 | const char *property, | |
135 | sd_bus_message *reply, | |
136 | void *userdata, | |
137 | sd_bus_error *error) { | |
138 | ||
139 | Link *l = userdata; | |
140 | const char *name; | |
141 | Iterator i; | |
142 | int r; | |
143 | ||
144 | assert(reply); | |
145 | assert(l); | |
146 | ||
147 | r = sd_bus_message_open_container(reply, 'a', "s"); | |
148 | if (r < 0) | |
149 | return r; | |
150 | ||
151 | SET_FOREACH(name, l->dnssec_negative_trust_anchors, i) { | |
152 | r = sd_bus_message_append(reply, "s", name); | |
153 | if (r < 0) | |
154 | return r; | |
155 | } | |
156 | ||
157 | return sd_bus_message_close_container(reply); | |
158 | } | |
159 | ||
c69fa7e3 LP |
160 | static int property_get_dnssec_supported( |
161 | sd_bus *bus, | |
162 | const char *path, | |
163 | const char *interface, | |
164 | const char *property, | |
165 | sd_bus_message *reply, | |
166 | void *userdata, | |
167 | sd_bus_error *error) { | |
168 | ||
169 | Link *l = userdata; | |
170 | ||
171 | assert(reply); | |
172 | assert(l); | |
173 | ||
174 | return sd_bus_message_append(reply, "b", link_dnssec_supported(l)); | |
175 | } | |
176 | ||
04b764bf LP |
177 | static int verify_unmanaged_link(Link *l, sd_bus_error *error) { |
178 | assert(l); | |
179 | ||
180 | if (l->flags & IFF_LOOPBACK) | |
181 | return sd_bus_error_setf(error, BUS_ERROR_LINK_BUSY, "Link %s is loopback device.", l->name); | |
182 | if (l->is_managed) | |
183 | return sd_bus_error_setf(error, BUS_ERROR_LINK_BUSY, "Link %s is managed.", l->name); | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
d2ec6608 LP |
188 | int bus_link_method_set_dns_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
189 | _cleanup_free_ struct in_addr_data *dns = NULL; | |
190 | size_t allocated = 0, n = 0; | |
191 | Link *l = userdata; | |
192 | unsigned i; | |
193 | int r; | |
194 | ||
195 | assert(message); | |
196 | assert(l); | |
197 | ||
04b764bf LP |
198 | r = verify_unmanaged_link(l, error); |
199 | if (r < 0) | |
200 | return r; | |
201 | ||
d2ec6608 LP |
202 | r = sd_bus_message_enter_container(message, 'a', "(iay)"); |
203 | if (r < 0) | |
204 | return r; | |
205 | ||
206 | for (;;) { | |
207 | int family; | |
208 | size_t sz; | |
209 | const void *d; | |
210 | ||
211 | assert_cc(sizeof(int) == sizeof(int32_t)); | |
212 | ||
213 | r = sd_bus_message_enter_container(message, 'r', "iay"); | |
214 | if (r < 0) | |
215 | return r; | |
216 | if (r == 0) | |
217 | break; | |
218 | ||
219 | r = sd_bus_message_read(message, "i", &family); | |
220 | if (r < 0) | |
221 | return r; | |
222 | ||
223 | if (!IN_SET(family, AF_INET, AF_INET6)) | |
224 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown address family %i", family); | |
225 | ||
226 | r = sd_bus_message_read_array(message, 'y', &d, &sz); | |
227 | if (r < 0) | |
228 | return r; | |
229 | if (sz != FAMILY_ADDRESS_SIZE(family)) | |
230 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid address size"); | |
231 | ||
b30bf55d LP |
232 | if (!dns_server_address_valid(family, d)) |
233 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid DNS server address"); | |
234 | ||
d2ec6608 LP |
235 | r = sd_bus_message_exit_container(message); |
236 | if (r < 0) | |
237 | return r; | |
238 | ||
239 | if (!GREEDY_REALLOC(dns, allocated, n+1)) | |
240 | return -ENOMEM; | |
241 | ||
242 | dns[n].family = family; | |
243 | memcpy(&dns[n].address, d, sz); | |
244 | n++; | |
245 | } | |
246 | ||
247 | r = sd_bus_message_exit_container(message); | |
248 | if (r < 0) | |
249 | return r; | |
250 | ||
251 | dns_server_mark_all(l->dns_servers); | |
252 | ||
253 | for (i = 0; i < n; i++) { | |
254 | DnsServer *s; | |
255 | ||
2817157b | 256 | s = dns_server_find(l->dns_servers, dns[i].family, &dns[i].address, 0); |
d2ec6608 LP |
257 | if (s) |
258 | dns_server_move_back_and_unmark(s); | |
259 | else { | |
2817157b | 260 | r = dns_server_new(l->manager, NULL, DNS_SERVER_LINK, l, dns[i].family, &dns[i].address, 0); |
d2ec6608 LP |
261 | if (r < 0) |
262 | goto clear; | |
263 | } | |
264 | ||
265 | } | |
266 | ||
267 | dns_server_unlink_marked(l->dns_servers); | |
268 | link_allocate_scopes(l); | |
269 | ||
943ef07c | 270 | (void) link_save_user(l); |
7207052d LP |
271 | (void) manager_write_resolv_conf(l->manager); |
272 | ||
d2ec6608 LP |
273 | return sd_bus_reply_method_return(message, NULL); |
274 | ||
275 | clear: | |
276 | dns_server_unlink_all(l->dns_servers); | |
277 | return r; | |
278 | } | |
279 | ||
ee116b54 | 280 | int bus_link_method_set_domains(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
d2ec6608 | 281 | Link *l = userdata; |
d2ec6608 LP |
282 | int r; |
283 | ||
284 | assert(message); | |
285 | assert(l); | |
286 | ||
04b764bf LP |
287 | r = verify_unmanaged_link(l, error); |
288 | if (r < 0) | |
289 | return r; | |
290 | ||
ad44b56b | 291 | r = sd_bus_message_enter_container(message, 'a', "(sb)"); |
d2ec6608 LP |
292 | if (r < 0) |
293 | return r; | |
294 | ||
ad44b56b LP |
295 | for (;;) { |
296 | const char *name; | |
297 | int route_only; | |
d2ec6608 | 298 | |
ad44b56b | 299 | r = sd_bus_message_read(message, "(sb)", &name, &route_only); |
d2ec6608 LP |
300 | if (r < 0) |
301 | return r; | |
302 | if (r == 0) | |
ad44b56b LP |
303 | break; |
304 | ||
305 | r = dns_name_is_valid(name); | |
306 | if (r < 0) | |
307 | return r; | |
308 | if (r == 0) | |
309 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid search domain %s", name); | |
310 | if (!route_only && dns_name_is_root(name)) | |
d2ec6608 LP |
311 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Root domain is not suitable as search domain"); |
312 | } | |
313 | ||
314 | dns_search_domain_mark_all(l->search_domains); | |
315 | ||
ad44b56b LP |
316 | r = sd_bus_message_rewind(message, false); |
317 | if (r < 0) | |
318 | return r; | |
319 | ||
320 | for (;;) { | |
d2ec6608 | 321 | DnsSearchDomain *d; |
ad44b56b LP |
322 | const char *name; |
323 | int route_only; | |
d2ec6608 | 324 | |
ad44b56b LP |
325 | r = sd_bus_message_read(message, "(sb)", &name, &route_only); |
326 | if (r < 0) | |
327 | goto clear; | |
328 | if (r == 0) | |
329 | break; | |
330 | ||
331 | r = dns_search_domain_find(l->search_domains, name, &d); | |
d2ec6608 LP |
332 | if (r < 0) |
333 | goto clear; | |
334 | ||
335 | if (r > 0) | |
336 | dns_search_domain_move_back_and_unmark(d); | |
337 | else { | |
ad44b56b | 338 | r = dns_search_domain_new(l->manager, &d, DNS_SEARCH_DOMAIN_LINK, l, name); |
d2ec6608 LP |
339 | if (r < 0) |
340 | goto clear; | |
341 | } | |
ad44b56b LP |
342 | |
343 | d->route_only = route_only; | |
d2ec6608 LP |
344 | } |
345 | ||
ad44b56b LP |
346 | r = sd_bus_message_exit_container(message); |
347 | if (r < 0) | |
348 | goto clear; | |
349 | ||
d2ec6608 | 350 | dns_search_domain_unlink_marked(l->search_domains); |
7207052d | 351 | |
943ef07c | 352 | (void) link_save_user(l); |
7207052d LP |
353 | (void) manager_write_resolv_conf(l->manager); |
354 | ||
d2ec6608 LP |
355 | return sd_bus_reply_method_return(message, NULL); |
356 | ||
357 | clear: | |
358 | dns_search_domain_unlink_all(l->search_domains); | |
359 | return r; | |
360 | } | |
361 | ||
362 | int bus_link_method_set_llmnr(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
363 | Link *l = userdata; | |
364 | ResolveSupport mode; | |
365 | const char *llmnr; | |
366 | int r; | |
367 | ||
368 | assert(message); | |
369 | assert(l); | |
370 | ||
04b764bf LP |
371 | r = verify_unmanaged_link(l, error); |
372 | if (r < 0) | |
373 | return r; | |
374 | ||
d2ec6608 LP |
375 | r = sd_bus_message_read(message, "s", &llmnr); |
376 | if (r < 0) | |
377 | return r; | |
378 | ||
379 | if (isempty(llmnr)) | |
380 | mode = RESOLVE_SUPPORT_YES; | |
381 | else { | |
382 | mode = resolve_support_from_string(llmnr); | |
383 | if (mode < 0) | |
384 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid LLMNR setting: %s", llmnr); | |
385 | } | |
386 | ||
387 | l->llmnr_support = mode; | |
388 | link_allocate_scopes(l); | |
389 | link_add_rrs(l, false); | |
390 | ||
943ef07c LP |
391 | (void) link_save_user(l); |
392 | ||
d2ec6608 LP |
393 | return sd_bus_reply_method_return(message, NULL); |
394 | } | |
395 | ||
396 | int bus_link_method_set_mdns(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
397 | Link *l = userdata; | |
398 | ResolveSupport mode; | |
399 | const char *mdns; | |
400 | int r; | |
401 | ||
402 | assert(message); | |
403 | assert(l); | |
404 | ||
04b764bf LP |
405 | r = verify_unmanaged_link(l, error); |
406 | if (r < 0) | |
407 | return r; | |
408 | ||
d2ec6608 LP |
409 | r = sd_bus_message_read(message, "s", &mdns); |
410 | if (r < 0) | |
411 | return r; | |
412 | ||
413 | if (isempty(mdns)) | |
414 | mode = RESOLVE_SUPPORT_NO; | |
415 | else { | |
416 | mode = resolve_support_from_string(mdns); | |
417 | if (mode < 0) | |
418 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid MulticastDNS setting: %s", mdns); | |
419 | } | |
420 | ||
421 | l->mdns_support = mode; | |
422 | link_allocate_scopes(l); | |
423 | link_add_rrs(l, false); | |
424 | ||
943ef07c LP |
425 | (void) link_save_user(l); |
426 | ||
d2ec6608 LP |
427 | return sd_bus_reply_method_return(message, NULL); |
428 | } | |
429 | ||
430 | int bus_link_method_set_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
431 | Link *l = userdata; | |
432 | const char *dnssec; | |
433 | DnssecMode mode; | |
434 | int r; | |
435 | ||
436 | assert(message); | |
437 | assert(l); | |
438 | ||
04b764bf LP |
439 | r = verify_unmanaged_link(l, error); |
440 | if (r < 0) | |
441 | return r; | |
442 | ||
d2ec6608 LP |
443 | r = sd_bus_message_read(message, "s", &dnssec); |
444 | if (r < 0) | |
445 | return r; | |
446 | ||
447 | if (isempty(dnssec)) | |
448 | mode = _DNSSEC_MODE_INVALID; | |
449 | else { | |
450 | mode = dnssec_mode_from_string(dnssec); | |
451 | if (mode < 0) | |
452 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid DNSSEC setting: %s", dnssec); | |
453 | } | |
454 | ||
455 | link_set_dnssec_mode(l, mode); | |
456 | ||
943ef07c LP |
457 | (void) link_save_user(l); |
458 | ||
d2ec6608 LP |
459 | return sd_bus_reply_method_return(message, NULL); |
460 | } | |
461 | ||
462 | int bus_link_method_set_dnssec_negative_trust_anchors(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
463 | _cleanup_set_free_free_ Set *ns = NULL; | |
c6d92582 | 464 | _cleanup_strv_free_ char **ntas = NULL; |
d2ec6608 LP |
465 | Link *l = userdata; |
466 | int r; | |
467 | char **i; | |
468 | ||
469 | assert(message); | |
470 | assert(l); | |
471 | ||
04b764bf LP |
472 | r = verify_unmanaged_link(l, error); |
473 | if (r < 0) | |
474 | return r; | |
475 | ||
d2ec6608 LP |
476 | r = sd_bus_message_read_strv(message, &ntas); |
477 | if (r < 0) | |
478 | return r; | |
479 | ||
480 | STRV_FOREACH(i, ntas) { | |
481 | r = dns_name_is_valid(*i); | |
482 | if (r < 0) | |
483 | return r; | |
484 | if (r == 0) | |
55abd6da | 485 | return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid negative trust anchor domain: %s", *i); |
d2ec6608 LP |
486 | } |
487 | ||
488 | ns = set_new(&dns_name_hash_ops); | |
489 | if (!ns) | |
490 | return -ENOMEM; | |
491 | ||
492 | STRV_FOREACH(i, ntas) { | |
493 | r = set_put_strdup(ns, *i); | |
494 | if (r < 0) | |
495 | return r; | |
496 | } | |
497 | ||
498 | set_free_free(l->dnssec_negative_trust_anchors); | |
499 | l->dnssec_negative_trust_anchors = ns; | |
500 | ns = NULL; | |
501 | ||
943ef07c LP |
502 | (void) link_save_user(l); |
503 | ||
d2ec6608 LP |
504 | return sd_bus_reply_method_return(message, NULL); |
505 | } | |
506 | ||
507 | int bus_link_method_revert(sd_bus_message *message, void *userdata, sd_bus_error *error) { | |
508 | Link *l = userdata; | |
04b764bf | 509 | int r; |
d2ec6608 LP |
510 | |
511 | assert(message); | |
512 | assert(l); | |
513 | ||
04b764bf LP |
514 | r = verify_unmanaged_link(l, error); |
515 | if (r < 0) | |
516 | return r; | |
517 | ||
d2ec6608 LP |
518 | link_flush_settings(l); |
519 | link_allocate_scopes(l); | |
520 | link_add_rrs(l, false); | |
521 | ||
943ef07c | 522 | (void) link_save_user(l); |
7207052d LP |
523 | (void) manager_write_resolv_conf(l->manager); |
524 | ||
d2ec6608 LP |
525 | return sd_bus_reply_method_return(message, NULL); |
526 | } | |
527 | ||
3abaabda LP |
528 | const sd_bus_vtable link_vtable[] = { |
529 | SD_BUS_VTABLE_START(0), | |
530 | ||
531 | SD_BUS_PROPERTY("ScopesMask", "t", property_get_scopes_mask, 0, 0), | |
532 | SD_BUS_PROPERTY("DNS", "a(iay)", property_get_dns, 0, 0), | |
ad44b56b | 533 | SD_BUS_PROPERTY("Domains", "a(sb)", property_get_domains, 0, 0), |
bf4e5c4c YW |
534 | SD_BUS_PROPERTY("LLMNR", "s", bus_property_get_resolve_support, offsetof(Link, llmnr_support), 0), |
535 | SD_BUS_PROPERTY("MulticastDNS", "s", bus_property_get_resolve_support, offsetof(Link, mdns_support), 0), | |
a3712979 | 536 | SD_BUS_PROPERTY("DNSSEC", "s", property_get_dnssec_mode, 0, 0), |
3abaabda | 537 | SD_BUS_PROPERTY("DNSSECNegativeTrustAnchors", "as", property_get_ntas, 0, 0), |
c2cf6e0b | 538 | SD_BUS_PROPERTY("DNSSECSupported", "b", property_get_dnssec_supported, 0, 0), |
3abaabda | 539 | |
d2ec6608 | 540 | SD_BUS_METHOD("SetDNS", "a(iay)", NULL, bus_link_method_set_dns_servers, 0), |
ee116b54 | 541 | SD_BUS_METHOD("SetDomains", "a(sb)", NULL, bus_link_method_set_domains, 0), |
d2ec6608 LP |
542 | SD_BUS_METHOD("SetLLMNR", "s", NULL, bus_link_method_set_llmnr, 0), |
543 | SD_BUS_METHOD("SetMulticastDNS", "s", NULL, bus_link_method_set_mdns, 0), | |
544 | SD_BUS_METHOD("SetDNSSEC", "s", NULL, bus_link_method_set_dnssec, 0), | |
545 | SD_BUS_METHOD("SetDNSSECNegativeTrustAnchors", "as", NULL, bus_link_method_set_dnssec_negative_trust_anchors, 0), | |
546 | SD_BUS_METHOD("Revert", NULL, NULL, bus_link_method_revert, 0), | |
547 | ||
3abaabda LP |
548 | SD_BUS_VTABLE_END |
549 | }; | |
550 | ||
551 | int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { | |
552 | _cleanup_free_ char *e = NULL; | |
553 | Manager *m = userdata; | |
554 | int ifindex; | |
555 | Link *link; | |
556 | int r; | |
557 | ||
558 | assert(bus); | |
559 | assert(path); | |
560 | assert(interface); | |
561 | assert(found); | |
562 | assert(m); | |
563 | ||
564 | r = sd_bus_path_decode(path, "/org/freedesktop/resolve1/link", &e); | |
565 | if (r <= 0) | |
566 | return 0; | |
567 | ||
568 | r = parse_ifindex(e, &ifindex); | |
569 | if (r < 0) | |
570 | return 0; | |
571 | ||
572 | link = hashmap_get(m->links, INT_TO_PTR(ifindex)); | |
573 | if (!link) | |
574 | return 0; | |
575 | ||
576 | *found = link; | |
577 | return 1; | |
578 | } | |
579 | ||
580 | char *link_bus_path(Link *link) { | |
581 | _cleanup_free_ char *ifindex = NULL; | |
582 | char *p; | |
583 | int r; | |
584 | ||
585 | assert(link); | |
586 | ||
587 | if (asprintf(&ifindex, "%i", link->ifindex) < 0) | |
588 | return NULL; | |
589 | ||
590 | r = sd_bus_path_encode("/org/freedesktop/resolve1/link", ifindex, &p); | |
591 | if (r < 0) | |
592 | return NULL; | |
593 | ||
594 | return p; | |
595 | } | |
596 | ||
597 | int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { | |
598 | _cleanup_strv_free_ char **l = NULL; | |
599 | Manager *m = userdata; | |
600 | Link *link; | |
601 | Iterator i; | |
602 | unsigned c = 0; | |
603 | ||
604 | assert(bus); | |
605 | assert(path); | |
606 | assert(m); | |
607 | assert(nodes); | |
608 | ||
609 | l = new0(char*, hashmap_size(m->links) + 1); | |
610 | if (!l) | |
611 | return -ENOMEM; | |
612 | ||
613 | HASHMAP_FOREACH(link, m->links, i) { | |
614 | char *p; | |
615 | ||
616 | p = link_bus_path(link); | |
617 | if (!p) | |
618 | return -ENOMEM; | |
619 | ||
620 | l[c++] = p; | |
621 | } | |
622 | ||
623 | l[c] = NULL; | |
624 | *nodes = l; | |
625 | l = NULL; | |
626 | ||
627 | return 1; | |
628 | } |