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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
89489ef7 TG |
2 | |
3 | #include <netinet/in.h> | |
30746d60 | 4 | #include <linux/if_addrlabel.h> |
89489ef7 TG |
5 | #include <stdbool.h> |
6 | #include <unistd.h> | |
7 | ||
07630cea LP |
8 | #include "sd-netlink.h" |
9 | ||
f97b34a6 | 10 | #include "format-util.h" |
89489ef7 | 11 | #include "missing.h" |
89489ef7 TG |
12 | #include "netlink-internal.h" |
13 | #include "netlink-types.h" | |
07630cea LP |
14 | #include "netlink-util.h" |
15 | #include "refcnt.h" | |
16 | #include "socket-util.h" | |
17 | #include "util.h" | |
89489ef7 TG |
18 | |
19 | int sd_rtnl_message_route_set_dst_prefixlen(sd_netlink_message *m, unsigned char prefixlen) { | |
20 | struct rtmsg *rtm; | |
21 | ||
22 | assert_return(m, -EINVAL); | |
23 | assert_return(m->hdr, -EINVAL); | |
24 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
25 | ||
26 | rtm = NLMSG_DATA(m->hdr); | |
27 | ||
28 | if ((rtm->rtm_family == AF_INET && prefixlen > 32) || | |
29 | (rtm->rtm_family == AF_INET6 && prefixlen > 128)) | |
30 | return -ERANGE; | |
31 | ||
32 | rtm->rtm_dst_len = prefixlen; | |
33 | ||
34 | return 0; | |
35 | } | |
36 | ||
37 | int sd_rtnl_message_route_set_src_prefixlen(sd_netlink_message *m, unsigned char prefixlen) { | |
38 | struct rtmsg *rtm; | |
39 | ||
40 | assert_return(m, -EINVAL); | |
41 | assert_return(m->hdr, -EINVAL); | |
42 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
43 | ||
44 | rtm = NLMSG_DATA(m->hdr); | |
45 | ||
46 | if ((rtm->rtm_family == AF_INET && prefixlen > 32) || | |
47 | (rtm->rtm_family == AF_INET6 && prefixlen > 128)) | |
48 | return -ERANGE; | |
49 | ||
50 | rtm->rtm_src_len = prefixlen; | |
51 | ||
52 | return 0; | |
53 | } | |
54 | ||
55 | int sd_rtnl_message_route_set_scope(sd_netlink_message *m, unsigned char scope) { | |
56 | struct rtmsg *rtm; | |
57 | ||
58 | assert_return(m, -EINVAL); | |
59 | assert_return(m->hdr, -EINVAL); | |
60 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
61 | ||
62 | rtm = NLMSG_DATA(m->hdr); | |
63 | ||
64 | rtm->rtm_scope = scope; | |
65 | ||
66 | return 0; | |
67 | } | |
68 | ||
6b9e85a7 TG |
69 | int sd_rtnl_message_route_set_flags(sd_netlink_message *m, unsigned flags) { |
70 | struct rtmsg *rtm; | |
71 | ||
72 | assert_return(m, -EINVAL); | |
73 | assert_return(m->hdr, -EINVAL); | |
74 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
75 | ||
76 | rtm = NLMSG_DATA(m->hdr); | |
77 | ||
78 | rtm->rtm_flags = flags; | |
79 | ||
80 | return 0; | |
81 | } | |
82 | ||
83 | int sd_rtnl_message_route_get_flags(sd_netlink_message *m, unsigned *flags) { | |
84 | struct rtmsg *rtm; | |
85 | ||
86 | assert_return(m, -EINVAL); | |
87 | assert_return(m->hdr, -EINVAL); | |
88 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
89 | assert_return(flags, -EINVAL); | |
90 | ||
91 | rtm = NLMSG_DATA(m->hdr); | |
92 | ||
93 | *flags = rtm->rtm_flags; | |
94 | ||
95 | return 0; | |
96 | } | |
97 | ||
ec1bb279 SS |
98 | int sd_rtnl_message_route_set_table(sd_netlink_message *m, unsigned char table) { |
99 | struct rtmsg *rtm; | |
100 | ||
101 | assert_return(m, -EINVAL); | |
102 | assert_return(m->hdr, -EINVAL); | |
103 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
104 | ||
105 | rtm = NLMSG_DATA(m->hdr); | |
106 | ||
107 | rtm->rtm_table = table; | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
89489ef7 TG |
112 | int sd_rtnl_message_route_get_family(sd_netlink_message *m, int *family) { |
113 | struct rtmsg *rtm; | |
114 | ||
115 | assert_return(m, -EINVAL); | |
116 | assert_return(m->hdr, -EINVAL); | |
117 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
118 | assert_return(family, -EINVAL); | |
119 | ||
120 | rtm = NLMSG_DATA(m->hdr); | |
121 | ||
122 | *family = rtm->rtm_family; | |
123 | ||
124 | return 0; | |
125 | } | |
126 | ||
ec1bb279 SS |
127 | int sd_rtnl_message_route_set_family(sd_netlink_message *m, int family) { |
128 | struct rtmsg *rtm; | |
129 | ||
130 | assert_return(m, -EINVAL); | |
131 | assert_return(m->hdr, -EINVAL); | |
132 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
133 | ||
134 | rtm = NLMSG_DATA(m->hdr); | |
135 | ||
136 | rtm->rtm_family = family; | |
137 | ||
138 | return 0; | |
139 | } | |
140 | ||
983226f3 SS |
141 | int sd_rtnl_message_route_get_type(sd_netlink_message *m, unsigned char *type) { |
142 | struct rtmsg *rtm; | |
143 | ||
144 | assert_return(m, -EINVAL); | |
145 | assert_return(m->hdr, -EINVAL); | |
146 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
147 | assert_return(type, -EINVAL); | |
148 | ||
149 | rtm = NLMSG_DATA(m->hdr); | |
150 | ||
151 | *type = rtm->rtm_type; | |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
156 | int sd_rtnl_message_route_set_type(sd_netlink_message *m, unsigned char type) { | |
157 | struct rtmsg *rtm; | |
158 | ||
159 | assert_return(m, -EINVAL); | |
160 | assert_return(m->hdr, -EINVAL); | |
161 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
162 | ||
163 | rtm = NLMSG_DATA(m->hdr); | |
164 | ||
165 | rtm->rtm_type = type; | |
166 | ||
167 | return 0; | |
168 | } | |
169 | ||
ad70f789 TG |
170 | int sd_rtnl_message_route_get_protocol(sd_netlink_message *m, unsigned char *protocol) { |
171 | struct rtmsg *rtm; | |
172 | ||
173 | assert_return(m, -EINVAL); | |
174 | assert_return(m->hdr, -EINVAL); | |
175 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
176 | assert_return(protocol, -EINVAL); | |
177 | ||
178 | rtm = NLMSG_DATA(m->hdr); | |
179 | ||
180 | *protocol = rtm->rtm_protocol; | |
181 | ||
182 | return 0; | |
183 | } | |
184 | ||
185 | int sd_rtnl_message_route_get_scope(sd_netlink_message *m, unsigned char *scope) { | |
186 | struct rtmsg *rtm; | |
187 | ||
188 | assert_return(m, -EINVAL); | |
189 | assert_return(m->hdr, -EINVAL); | |
190 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
191 | assert_return(scope, -EINVAL); | |
192 | ||
193 | rtm = NLMSG_DATA(m->hdr); | |
194 | ||
195 | *scope = rtm->rtm_scope; | |
196 | ||
197 | return 0; | |
198 | } | |
199 | ||
200 | int sd_rtnl_message_route_get_tos(sd_netlink_message *m, unsigned char *tos) { | |
201 | struct rtmsg *rtm; | |
202 | ||
203 | assert_return(m, -EINVAL); | |
204 | assert_return(m->hdr, -EINVAL); | |
205 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
206 | assert_return(tos, -EINVAL); | |
207 | ||
208 | rtm = NLMSG_DATA(m->hdr); | |
209 | ||
210 | *tos = rtm->rtm_tos; | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
215 | int sd_rtnl_message_route_get_table(sd_netlink_message *m, unsigned char *table) { | |
216 | struct rtmsg *rtm; | |
217 | ||
218 | assert_return(m, -EINVAL); | |
219 | assert_return(m->hdr, -EINVAL); | |
220 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
221 | assert_return(table, -EINVAL); | |
222 | ||
223 | rtm = NLMSG_DATA(m->hdr); | |
224 | ||
225 | *table = rtm->rtm_table; | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
89489ef7 TG |
230 | int sd_rtnl_message_route_get_dst_prefixlen(sd_netlink_message *m, unsigned char *dst_len) { |
231 | struct rtmsg *rtm; | |
232 | ||
233 | assert_return(m, -EINVAL); | |
234 | assert_return(m->hdr, -EINVAL); | |
235 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
236 | assert_return(dst_len, -EINVAL); | |
237 | ||
238 | rtm = NLMSG_DATA(m->hdr); | |
239 | ||
240 | *dst_len = rtm->rtm_dst_len; | |
241 | ||
242 | return 0; | |
243 | } | |
244 | ||
245 | int sd_rtnl_message_route_get_src_prefixlen(sd_netlink_message *m, unsigned char *src_len) { | |
246 | struct rtmsg *rtm; | |
247 | ||
248 | assert_return(m, -EINVAL); | |
249 | assert_return(m->hdr, -EINVAL); | |
250 | assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL); | |
251 | assert_return(src_len, -EINVAL); | |
252 | ||
253 | rtm = NLMSG_DATA(m->hdr); | |
254 | ||
255 | *src_len = rtm->rtm_src_len; | |
256 | ||
257 | return 0; | |
258 | } | |
259 | ||
260 | int sd_rtnl_message_new_route(sd_netlink *rtnl, sd_netlink_message **ret, | |
261 | uint16_t nlmsg_type, int rtm_family, | |
262 | unsigned char rtm_protocol) { | |
263 | struct rtmsg *rtm; | |
264 | int r; | |
265 | ||
266 | assert_return(rtnl_message_type_is_route(nlmsg_type), -EINVAL); | |
267 | assert_return((nlmsg_type == RTM_GETROUTE && rtm_family == AF_UNSPEC) || | |
945c2931 | 268 | IN_SET(rtm_family, AF_INET, AF_INET6), -EINVAL); |
89489ef7 TG |
269 | assert_return(ret, -EINVAL); |
270 | ||
271 | r = message_new(rtnl, ret, nlmsg_type); | |
272 | if (r < 0) | |
273 | return r; | |
274 | ||
275 | if (nlmsg_type == RTM_NEWROUTE) | |
276 | (*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_APPEND; | |
277 | ||
278 | rtm = NLMSG_DATA((*ret)->hdr); | |
279 | ||
280 | rtm->rtm_family = rtm_family; | |
281 | rtm->rtm_scope = RT_SCOPE_UNIVERSE; | |
282 | rtm->rtm_type = RTN_UNICAST; | |
283 | rtm->rtm_table = RT_TABLE_MAIN; | |
284 | rtm->rtm_protocol = rtm_protocol; | |
285 | ||
286 | return 0; | |
287 | } | |
288 | ||
289 | int sd_rtnl_message_neigh_set_flags(sd_netlink_message *m, uint8_t flags) { | |
290 | struct ndmsg *ndm; | |
291 | ||
292 | assert_return(m, -EINVAL); | |
293 | assert_return(m->hdr, -EINVAL); | |
294 | assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL); | |
295 | ||
296 | ndm = NLMSG_DATA(m->hdr); | |
297 | ndm->ndm_flags |= flags; | |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
302 | int sd_rtnl_message_neigh_set_state(sd_netlink_message *m, uint16_t state) { | |
303 | struct ndmsg *ndm; | |
304 | ||
305 | assert_return(m, -EINVAL); | |
306 | assert_return(m->hdr, -EINVAL); | |
307 | assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL); | |
308 | ||
309 | ndm = NLMSG_DATA(m->hdr); | |
310 | ndm->ndm_state |= state; | |
311 | ||
312 | return 0; | |
313 | } | |
314 | ||
315 | int sd_rtnl_message_neigh_get_flags(sd_netlink_message *m, uint8_t *flags) { | |
316 | struct ndmsg *ndm; | |
317 | ||
318 | assert_return(m, -EINVAL); | |
319 | assert_return(m->hdr, -EINVAL); | |
320 | assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL); | |
321 | ||
322 | ndm = NLMSG_DATA(m->hdr); | |
323 | *flags = ndm->ndm_flags; | |
324 | ||
325 | return 0; | |
326 | } | |
327 | ||
328 | int sd_rtnl_message_neigh_get_state(sd_netlink_message *m, uint16_t *state) { | |
329 | struct ndmsg *ndm; | |
330 | ||
331 | assert_return(m, -EINVAL); | |
332 | assert_return(m->hdr, -EINVAL); | |
333 | assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL); | |
334 | ||
335 | ndm = NLMSG_DATA(m->hdr); | |
336 | *state = ndm->ndm_state; | |
337 | ||
338 | return 0; | |
339 | } | |
340 | ||
341 | int sd_rtnl_message_neigh_get_family(sd_netlink_message *m, int *family) { | |
342 | struct ndmsg *ndm; | |
343 | ||
344 | assert_return(m, -EINVAL); | |
345 | assert_return(m->hdr, -EINVAL); | |
346 | assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL); | |
347 | assert_return(family, -EINVAL); | |
348 | ||
349 | ndm = NLMSG_DATA(m->hdr); | |
350 | ||
351 | *family = ndm->ndm_family; | |
352 | ||
353 | return 0; | |
354 | } | |
355 | ||
356 | int sd_rtnl_message_neigh_get_ifindex(sd_netlink_message *m, int *index) { | |
357 | struct ndmsg *ndm; | |
358 | ||
359 | assert_return(m, -EINVAL); | |
360 | assert_return(m->hdr, -EINVAL); | |
361 | assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL); | |
362 | assert_return(index, -EINVAL); | |
363 | ||
364 | ndm = NLMSG_DATA(m->hdr); | |
365 | ||
366 | *index = ndm->ndm_ifindex; | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | int sd_rtnl_message_new_neigh(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nlmsg_type, int index, int ndm_family) { | |
372 | struct ndmsg *ndm; | |
373 | int r; | |
374 | ||
375 | assert_return(rtnl_message_type_is_neigh(nlmsg_type), -EINVAL); | |
945c2931 | 376 | assert_return(IN_SET(ndm_family, AF_INET, AF_INET6, PF_BRIDGE), -EINVAL); |
89489ef7 TG |
377 | assert_return(ret, -EINVAL); |
378 | ||
379 | r = message_new(rtnl, ret, nlmsg_type); | |
380 | if (r < 0) | |
381 | return r; | |
382 | ||
383 | if (nlmsg_type == RTM_NEWNEIGH) | |
384 | (*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_APPEND; | |
385 | ||
386 | ndm = NLMSG_DATA((*ret)->hdr); | |
387 | ||
388 | ndm->ndm_family = ndm_family; | |
389 | ndm->ndm_ifindex = index; | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
394 | int sd_rtnl_message_link_set_flags(sd_netlink_message *m, unsigned flags, unsigned change) { | |
395 | struct ifinfomsg *ifi; | |
396 | ||
397 | assert_return(m, -EINVAL); | |
398 | assert_return(m->hdr, -EINVAL); | |
399 | assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL); | |
400 | assert_return(change, -EINVAL); | |
401 | ||
402 | ifi = NLMSG_DATA(m->hdr); | |
403 | ||
404 | ifi->ifi_flags = flags; | |
405 | ifi->ifi_change = change; | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
410 | int sd_rtnl_message_link_set_type(sd_netlink_message *m, unsigned type) { | |
411 | struct ifinfomsg *ifi; | |
412 | ||
413 | assert_return(m, -EINVAL); | |
414 | assert_return(m->hdr, -EINVAL); | |
415 | assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL); | |
416 | ||
417 | ifi = NLMSG_DATA(m->hdr); | |
418 | ||
419 | ifi->ifi_type = type; | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
424 | int sd_rtnl_message_link_set_family(sd_netlink_message *m, unsigned family) { | |
425 | struct ifinfomsg *ifi; | |
426 | ||
427 | assert_return(m, -EINVAL); | |
428 | assert_return(m->hdr, -EINVAL); | |
429 | assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL); | |
430 | ||
431 | ifi = NLMSG_DATA(m->hdr); | |
432 | ||
433 | ifi->ifi_family = family; | |
434 | ||
435 | return 0; | |
436 | } | |
437 | ||
438 | int sd_rtnl_message_new_link(sd_netlink *rtnl, sd_netlink_message **ret, | |
439 | uint16_t nlmsg_type, int index) { | |
440 | struct ifinfomsg *ifi; | |
441 | int r; | |
442 | ||
443 | assert_return(rtnl_message_type_is_link(nlmsg_type), -EINVAL); | |
89489ef7 TG |
444 | assert_return(ret, -EINVAL); |
445 | ||
446 | r = message_new(rtnl, ret, nlmsg_type); | |
447 | if (r < 0) | |
448 | return r; | |
449 | ||
450 | if (nlmsg_type == RTM_NEWLINK) | |
451 | (*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_EXCL; | |
452 | ||
453 | ifi = NLMSG_DATA((*ret)->hdr); | |
454 | ||
455 | ifi->ifi_family = AF_UNSPEC; | |
456 | ifi->ifi_index = index; | |
457 | ||
458 | return 0; | |
459 | } | |
460 | ||
461 | int sd_rtnl_message_addr_set_prefixlen(sd_netlink_message *m, unsigned char prefixlen) { | |
462 | struct ifaddrmsg *ifa; | |
463 | ||
464 | assert_return(m, -EINVAL); | |
465 | assert_return(m->hdr, -EINVAL); | |
466 | assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL); | |
467 | ||
468 | ifa = NLMSG_DATA(m->hdr); | |
469 | ||
470 | if ((ifa->ifa_family == AF_INET && prefixlen > 32) || | |
471 | (ifa->ifa_family == AF_INET6 && prefixlen > 128)) | |
472 | return -ERANGE; | |
473 | ||
474 | ifa->ifa_prefixlen = prefixlen; | |
475 | ||
476 | return 0; | |
477 | } | |
478 | ||
479 | int sd_rtnl_message_addr_set_flags(sd_netlink_message *m, unsigned char flags) { | |
480 | struct ifaddrmsg *ifa; | |
481 | ||
482 | assert_return(m, -EINVAL); | |
483 | assert_return(m->hdr, -EINVAL); | |
484 | assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL); | |
485 | ||
486 | ifa = NLMSG_DATA(m->hdr); | |
487 | ||
488 | ifa->ifa_flags = flags; | |
489 | ||
490 | return 0; | |
491 | } | |
492 | ||
493 | int sd_rtnl_message_addr_set_scope(sd_netlink_message *m, unsigned char scope) { | |
494 | struct ifaddrmsg *ifa; | |
495 | ||
496 | assert_return(m, -EINVAL); | |
497 | assert_return(m->hdr, -EINVAL); | |
498 | assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL); | |
499 | ||
500 | ifa = NLMSG_DATA(m->hdr); | |
501 | ||
502 | ifa->ifa_scope = scope; | |
503 | ||
504 | return 0; | |
505 | } | |
506 | ||
507 | int sd_rtnl_message_addr_get_family(sd_netlink_message *m, int *family) { | |
508 | struct ifaddrmsg *ifa; | |
509 | ||
510 | assert_return(m, -EINVAL); | |
511 | assert_return(m->hdr, -EINVAL); | |
512 | assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL); | |
513 | assert_return(family, -EINVAL); | |
514 | ||
515 | ifa = NLMSG_DATA(m->hdr); | |
516 | ||
517 | *family = ifa->ifa_family; | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
522 | int sd_rtnl_message_addr_get_prefixlen(sd_netlink_message *m, unsigned char *prefixlen) { | |
523 | struct ifaddrmsg *ifa; | |
524 | ||
525 | assert_return(m, -EINVAL); | |
526 | assert_return(m->hdr, -EINVAL); | |
527 | assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL); | |
528 | assert_return(prefixlen, -EINVAL); | |
529 | ||
530 | ifa = NLMSG_DATA(m->hdr); | |
531 | ||
532 | *prefixlen = ifa->ifa_prefixlen; | |
533 | ||
534 | return 0; | |
535 | } | |
536 | ||
537 | int sd_rtnl_message_addr_get_scope(sd_netlink_message *m, unsigned char *scope) { | |
538 | struct ifaddrmsg *ifa; | |
539 | ||
540 | assert_return(m, -EINVAL); | |
541 | assert_return(m->hdr, -EINVAL); | |
542 | assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL); | |
543 | assert_return(scope, -EINVAL); | |
544 | ||
545 | ifa = NLMSG_DATA(m->hdr); | |
546 | ||
547 | *scope = ifa->ifa_scope; | |
548 | ||
549 | return 0; | |
550 | } | |
551 | ||
552 | int sd_rtnl_message_addr_get_flags(sd_netlink_message *m, unsigned char *flags) { | |
553 | struct ifaddrmsg *ifa; | |
554 | ||
555 | assert_return(m, -EINVAL); | |
556 | assert_return(m->hdr, -EINVAL); | |
557 | assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL); | |
558 | assert_return(flags, -EINVAL); | |
559 | ||
560 | ifa = NLMSG_DATA(m->hdr); | |
561 | ||
562 | *flags = ifa->ifa_flags; | |
563 | ||
564 | return 0; | |
565 | } | |
566 | ||
567 | int sd_rtnl_message_addr_get_ifindex(sd_netlink_message *m, int *ifindex) { | |
568 | struct ifaddrmsg *ifa; | |
569 | ||
570 | assert_return(m, -EINVAL); | |
571 | assert_return(m->hdr, -EINVAL); | |
572 | assert_return(rtnl_message_type_is_addr(m->hdr->nlmsg_type), -EINVAL); | |
573 | assert_return(ifindex, -EINVAL); | |
574 | ||
575 | ifa = NLMSG_DATA(m->hdr); | |
576 | ||
577 | *ifindex = ifa->ifa_index; | |
578 | ||
579 | return 0; | |
580 | } | |
581 | ||
582 | int sd_rtnl_message_new_addr(sd_netlink *rtnl, sd_netlink_message **ret, | |
583 | uint16_t nlmsg_type, int index, | |
584 | int family) { | |
585 | struct ifaddrmsg *ifa; | |
586 | int r; | |
587 | ||
588 | assert_return(rtnl_message_type_is_addr(nlmsg_type), -EINVAL); | |
589 | assert_return((nlmsg_type == RTM_GETADDR && index == 0) || | |
590 | index > 0, -EINVAL); | |
591 | assert_return((nlmsg_type == RTM_GETADDR && family == AF_UNSPEC) || | |
945c2931 | 592 | IN_SET(family, AF_INET, AF_INET6), -EINVAL); |
89489ef7 TG |
593 | assert_return(ret, -EINVAL); |
594 | ||
595 | r = message_new(rtnl, ret, nlmsg_type); | |
596 | if (r < 0) | |
597 | return r; | |
598 | ||
599 | if (nlmsg_type == RTM_GETADDR) | |
600 | (*ret)->hdr->nlmsg_flags |= NLM_F_DUMP; | |
601 | ||
602 | ifa = NLMSG_DATA((*ret)->hdr); | |
603 | ||
604 | ifa->ifa_index = index; | |
605 | ifa->ifa_family = family; | |
606 | if (family == AF_INET) | |
607 | ifa->ifa_prefixlen = 32; | |
608 | else if (family == AF_INET6) | |
609 | ifa->ifa_prefixlen = 128; | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
614 | int sd_rtnl_message_new_addr_update(sd_netlink *rtnl, sd_netlink_message **ret, | |
615 | int index, int family) { | |
616 | int r; | |
617 | ||
618 | r = sd_rtnl_message_new_addr(rtnl, ret, RTM_NEWADDR, index, family); | |
619 | if (r < 0) | |
620 | return r; | |
621 | ||
622 | (*ret)->hdr->nlmsg_flags |= NLM_F_REPLACE; | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
627 | int sd_rtnl_message_link_get_ifindex(sd_netlink_message *m, int *ifindex) { | |
628 | struct ifinfomsg *ifi; | |
629 | ||
630 | assert_return(m, -EINVAL); | |
631 | assert_return(m->hdr, -EINVAL); | |
632 | assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL); | |
633 | assert_return(ifindex, -EINVAL); | |
634 | ||
635 | ifi = NLMSG_DATA(m->hdr); | |
636 | ||
637 | *ifindex = ifi->ifi_index; | |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
642 | int sd_rtnl_message_link_get_flags(sd_netlink_message *m, unsigned *flags) { | |
643 | struct ifinfomsg *ifi; | |
644 | ||
645 | assert_return(m, -EINVAL); | |
646 | assert_return(m->hdr, -EINVAL); | |
647 | assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL); | |
648 | assert_return(flags, -EINVAL); | |
649 | ||
650 | ifi = NLMSG_DATA(m->hdr); | |
651 | ||
652 | *flags = ifi->ifi_flags; | |
653 | ||
654 | return 0; | |
655 | } | |
656 | ||
1c4a6088 | 657 | int sd_rtnl_message_link_get_type(sd_netlink_message *m, unsigned short *type) { |
89489ef7 TG |
658 | struct ifinfomsg *ifi; |
659 | ||
660 | assert_return(m, -EINVAL); | |
661 | assert_return(m->hdr, -EINVAL); | |
662 | assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL); | |
663 | assert_return(type, -EINVAL); | |
664 | ||
665 | ifi = NLMSG_DATA(m->hdr); | |
666 | ||
667 | *type = ifi->ifi_type; | |
668 | ||
669 | return 0; | |
670 | } | |
671 | ||
672 | int sd_rtnl_message_get_family(sd_netlink_message *m, int *family) { | |
673 | assert_return(m, -EINVAL); | |
674 | assert_return(family, -EINVAL); | |
675 | ||
676 | assert(m->hdr); | |
677 | ||
678 | if (rtnl_message_type_is_link(m->hdr->nlmsg_type)) { | |
679 | struct ifinfomsg *ifi; | |
680 | ||
681 | ifi = NLMSG_DATA(m->hdr); | |
682 | ||
683 | *family = ifi->ifi_family; | |
684 | ||
685 | return 0; | |
686 | } else if (rtnl_message_type_is_route(m->hdr->nlmsg_type)) { | |
687 | struct rtmsg *rtm; | |
688 | ||
689 | rtm = NLMSG_DATA(m->hdr); | |
690 | ||
691 | *family = rtm->rtm_family; | |
692 | ||
693 | return 0; | |
694 | } else if (rtnl_message_type_is_neigh(m->hdr->nlmsg_type)) { | |
695 | struct ndmsg *ndm; | |
696 | ||
697 | ndm = NLMSG_DATA(m->hdr); | |
698 | ||
699 | *family = ndm->ndm_family; | |
700 | ||
701 | return 0; | |
702 | } else if (rtnl_message_type_is_addr(m->hdr->nlmsg_type)) { | |
703 | struct ifaddrmsg *ifa; | |
704 | ||
705 | ifa = NLMSG_DATA(m->hdr); | |
706 | ||
707 | *family = ifa->ifa_family; | |
708 | ||
bce67bbe SS |
709 | return 0; |
710 | } else if (rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type)) { | |
711 | struct rtmsg *rtm; | |
712 | ||
713 | rtm = NLMSG_DATA(m->hdr); | |
714 | ||
715 | *family = rtm->rtm_family; | |
716 | ||
89489ef7 TG |
717 | return 0; |
718 | } | |
719 | ||
720 | return -EOPNOTSUPP; | |
721 | } | |
30746d60 SS |
722 | |
723 | int sd_rtnl_message_new_addrlabel(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nlmsg_type, int ifindex, int ifal_family) { | |
724 | struct ifaddrlblmsg *addrlabel; | |
725 | int r; | |
726 | ||
727 | assert_return(rtnl_message_type_is_addrlabel(nlmsg_type), -EINVAL); | |
728 | assert_return(ret, -EINVAL); | |
729 | ||
730 | r = message_new(rtnl, ret, nlmsg_type); | |
731 | if (r < 0) | |
732 | return r; | |
733 | ||
734 | if (nlmsg_type == RTM_NEWADDRLABEL) | |
735 | (*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_EXCL; | |
736 | ||
737 | addrlabel = NLMSG_DATA((*ret)->hdr); | |
738 | ||
739 | addrlabel->ifal_family = ifal_family; | |
740 | addrlabel->ifal_index = ifindex; | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
745 | int sd_rtnl_message_addrlabel_set_prefixlen(sd_netlink_message *m, unsigned char prefixlen) { | |
746 | struct ifaddrlblmsg *addrlabel; | |
747 | ||
748 | assert_return(m, -EINVAL); | |
749 | assert_return(m->hdr, -EINVAL); | |
750 | assert_return(rtnl_message_type_is_addrlabel(m->hdr->nlmsg_type), -EINVAL); | |
751 | ||
752 | addrlabel = NLMSG_DATA(m->hdr); | |
753 | ||
754 | if (prefixlen > 128) | |
755 | return -ERANGE; | |
756 | ||
757 | addrlabel->ifal_prefixlen = prefixlen; | |
758 | ||
759 | return 0; | |
760 | } | |
d37b7627 SS |
761 | |
762 | int sd_rtnl_message_addrlabel_get_prefixlen(sd_netlink_message *m, unsigned char *prefixlen) { | |
763 | struct ifaddrlblmsg *addrlabel; | |
764 | ||
765 | assert_return(m, -EINVAL); | |
766 | assert_return(m->hdr, -EINVAL); | |
767 | assert_return(rtnl_message_type_is_addrlabel(m->hdr->nlmsg_type), -EINVAL); | |
768 | ||
769 | addrlabel = NLMSG_DATA(m->hdr); | |
770 | ||
771 | *prefixlen = addrlabel->ifal_prefixlen; | |
772 | ||
773 | return 0; | |
774 | } | |
bce67bbe SS |
775 | |
776 | int sd_rtnl_message_new_routing_policy_rule(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nlmsg_type, int ifal_family) { | |
777 | struct rtmsg *rtm; | |
778 | int r; | |
779 | ||
780 | assert_return(rtnl_message_type_is_routing_policy_rule(nlmsg_type), -EINVAL); | |
781 | assert_return(ret, -EINVAL); | |
782 | ||
783 | r = message_new(rtnl, ret, nlmsg_type); | |
784 | if (r < 0) | |
785 | return r; | |
786 | ||
787 | if (nlmsg_type == RTM_NEWRULE) | |
788 | (*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_EXCL; | |
789 | ||
790 | rtm = NLMSG_DATA((*ret)->hdr); | |
791 | rtm->rtm_family = ifal_family; | |
792 | rtm->rtm_protocol = RTPROT_BOOT; | |
793 | rtm->rtm_scope = RT_SCOPE_UNIVERSE; | |
794 | rtm->rtm_type = RTN_UNICAST; | |
795 | ||
796 | return 0; | |
797 | } | |
798 | ||
799 | int sd_rtnl_message_routing_policy_rule_set_tos(sd_netlink_message *m, unsigned char tos) { | |
800 | struct rtmsg *routing_policy_rule; | |
801 | ||
802 | assert_return(m, -EINVAL); | |
803 | assert_return(m->hdr, -EINVAL); | |
804 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
805 | ||
806 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
807 | ||
808 | routing_policy_rule->rtm_tos = tos; | |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
813 | int sd_rtnl_message_routing_policy_rule_get_tos(sd_netlink_message *m, unsigned char *tos) { | |
814 | struct rtmsg *routing_policy_rule; | |
815 | ||
816 | assert_return(m, -EINVAL); | |
817 | assert_return(m->hdr, -EINVAL); | |
818 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
819 | ||
820 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
821 | ||
822 | *tos = routing_policy_rule->rtm_tos; | |
823 | ||
824 | return 0; | |
825 | } | |
826 | ||
827 | int sd_rtnl_message_routing_policy_rule_set_table(sd_netlink_message *m, unsigned char table) { | |
828 | struct rtmsg *routing_policy_rule; | |
829 | ||
830 | assert_return(m, -EINVAL); | |
831 | assert_return(m->hdr, -EINVAL); | |
832 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
833 | ||
834 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
835 | ||
836 | routing_policy_rule->rtm_table = table; | |
837 | ||
838 | return 0; | |
839 | } | |
840 | ||
841 | int sd_rtnl_message_routing_policy_rule_get_table(sd_netlink_message *m, unsigned char *table) { | |
842 | struct rtmsg *routing_policy_rule; | |
843 | ||
844 | assert_return(m, -EINVAL); | |
845 | assert_return(m->hdr, -EINVAL); | |
846 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
847 | ||
848 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
849 | ||
850 | *table = routing_policy_rule->rtm_table; | |
851 | ||
852 | return 0; | |
853 | } | |
854 | ||
8b220643 SS |
855 | int sd_rtnl_message_routing_policy_rule_set_flags(sd_netlink_message *m, unsigned flags) { |
856 | struct rtmsg *routing_policy_rule; | |
857 | ||
858 | assert_return(m, -EINVAL); | |
859 | assert_return(m->hdr, -EINVAL); | |
860 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
861 | ||
862 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
863 | routing_policy_rule->rtm_flags |= flags; | |
864 | ||
865 | return 0; | |
866 | } | |
867 | ||
868 | int sd_rtnl_message_routing_policy_rule_get_flags(sd_netlink_message *m, unsigned *flags) { | |
869 | struct rtmsg *routing_policy_rule; | |
870 | ||
871 | assert_return(m, -EINVAL); | |
872 | assert_return(m->hdr, -EINVAL); | |
873 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
874 | ||
875 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
876 | *flags = routing_policy_rule->rtm_flags; | |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
bce67bbe SS |
881 | int sd_rtnl_message_routing_policy_rule_set_rtm_type(sd_netlink_message *m, unsigned char type) { |
882 | struct rtmsg *routing_policy_rule; | |
883 | ||
884 | assert_return(m, -EINVAL); | |
885 | assert_return(m->hdr, -EINVAL); | |
886 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
887 | ||
888 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
889 | ||
890 | routing_policy_rule->rtm_type = type; | |
891 | ||
892 | return 0; | |
893 | } | |
894 | ||
895 | int sd_rtnl_message_routing_policy_rule_get_rtm_type(sd_netlink_message *m, unsigned char *type) { | |
896 | struct rtmsg *routing_policy_rule; | |
897 | ||
898 | assert_return(m, -EINVAL); | |
899 | assert_return(m->hdr, -EINVAL); | |
900 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
901 | ||
902 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
903 | ||
904 | *type = routing_policy_rule->rtm_type; | |
905 | ||
906 | return 0; | |
907 | } | |
908 | ||
909 | int sd_rtnl_message_routing_policy_rule_set_rtm_dst_prefixlen(sd_netlink_message *m, unsigned char len) { | |
910 | struct rtmsg *routing_policy_rule; | |
911 | ||
912 | assert_return(m, -EINVAL); | |
913 | assert_return(m->hdr, -EINVAL); | |
914 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
915 | ||
916 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
917 | ||
918 | routing_policy_rule->rtm_dst_len = len; | |
919 | ||
920 | return 0; | |
921 | } | |
922 | ||
923 | int sd_rtnl_message_routing_policy_rule_get_rtm_dst_prefixlen(sd_netlink_message *m, unsigned char *len) { | |
924 | struct rtmsg *routing_policy_rule; | |
925 | ||
926 | assert_return(m, -EINVAL); | |
927 | assert_return(m->hdr, -EINVAL); | |
928 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
929 | ||
930 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
931 | ||
932 | *len = routing_policy_rule->rtm_dst_len; | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
937 | int sd_rtnl_message_routing_policy_rule_set_rtm_src_prefixlen(sd_netlink_message *m, unsigned char len) { | |
938 | struct rtmsg *routing_policy_rule; | |
939 | ||
940 | assert_return(m, -EINVAL); | |
941 | assert_return(m->hdr, -EINVAL); | |
942 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
943 | ||
944 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
945 | ||
946 | routing_policy_rule->rtm_src_len = len; | |
947 | ||
948 | return 0; | |
949 | } | |
950 | ||
951 | int sd_rtnl_message_routing_policy_rule_get_rtm_src_prefixlen(sd_netlink_message *m, unsigned char *len) { | |
952 | struct rtmsg *routing_policy_rule; | |
953 | ||
954 | assert_return(m, -EINVAL); | |
955 | assert_return(m->hdr, -EINVAL); | |
956 | assert_return(rtnl_message_type_is_routing_policy_rule(m->hdr->nlmsg_type), -EINVAL); | |
957 | ||
958 | routing_policy_rule = NLMSG_DATA(m->hdr); | |
959 | ||
960 | *len = routing_policy_rule->rtm_src_len; | |
961 | ||
962 | return 0; | |
963 | } |