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Commit | Line | Data |
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718e3744 | 1 | /* |
2 | * kernel routing table update by ioctl(). | |
3 | * Copyright (C) 1997, 98 Kunihiro Ishiguro | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra 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 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "prefix.h" | |
26 | #include "log.h" | |
27 | #include "if.h" | |
28 | ||
a1ac18c4 | 29 | #include "zebra/zserv.h" |
718e3744 | 30 | #include "zebra/rib.h" |
31 | #include "zebra/debug.h" | |
a1ac18c4 | 32 | #include "zebra/rt.h" |
718e3744 | 33 | |
34 | /* Initialize of kernel interface. There is no kernel communication | |
35 | support under ioctl(). So this is dummy stub function. */ | |
36 | void | |
a1ac18c4 | 37 | kernel_init (void) |
718e3744 | 38 | { |
39 | return; | |
40 | } | |
41 | ||
42 | /* Dummy function of routing socket. */ | |
a1ac18c4 | 43 | static void |
718e3744 | 44 | kernel_read (int sock) |
45 | { | |
46 | return; | |
47 | } | |
48 | ||
49 | #if 0 | |
50 | /* Initialization prototype of struct sockaddr_in. */ | |
51 | static struct sockaddr_in sin_proto = | |
52 | { | |
6f0e3f6e | 53 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 54 | sizeof (struct sockaddr_in), |
6f0e3f6e | 55 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 56 | AF_INET, 0, {0}, {0} |
57 | }; | |
58 | #endif /* 0 */ | |
59 | ||
60 | /* Solaris has ortentry. */ | |
61 | #ifdef HAVE_OLD_RTENTRY | |
62 | #define rtentry ortentry | |
63 | #endif /* HAVE_OLD_RTENTRY */ | |
64 | ||
65 | /* Interface to ioctl route message. */ | |
66 | int | |
67 | kernel_add_route (struct prefix_ipv4 *dest, struct in_addr *gate, | |
68 | int index, int flags) | |
69 | { | |
70 | int ret; | |
71 | int sock; | |
72 | struct rtentry rtentry; | |
73 | struct sockaddr_in sin_dest, sin_mask, sin_gate; | |
74 | ||
75 | memset (&rtentry, 0, sizeof (struct rtentry)); | |
76 | ||
77 | /* Make destination. */ | |
78 | memset (&sin_dest, 0, sizeof (struct sockaddr_in)); | |
79 | sin_dest.sin_family = AF_INET; | |
6f0e3f6e | 80 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 81 | sin_dest.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 82 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 83 | sin_dest.sin_addr = dest->prefix; |
84 | ||
85 | /* Make gateway. */ | |
86 | if (gate) | |
87 | { | |
88 | memset (&sin_gate, 0, sizeof (struct sockaddr_in)); | |
89 | sin_gate.sin_family = AF_INET; | |
6f0e3f6e | 90 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 91 | sin_gate.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 92 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 93 | sin_gate.sin_addr = *gate; |
94 | } | |
95 | ||
96 | memset (&sin_mask, 0, sizeof (struct sockaddr_in)); | |
97 | sin_mask.sin_family = AF_INET; | |
6f0e3f6e | 98 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 99 | sin_gate.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 100 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 101 | masklen2ip (dest->prefixlen, &sin_mask.sin_addr); |
102 | ||
103 | /* Set destination address, mask and gateway.*/ | |
104 | memcpy (&rtentry.rt_dst, &sin_dest, sizeof (struct sockaddr_in)); | |
105 | if (gate) | |
106 | memcpy (&rtentry.rt_gateway, &sin_gate, sizeof (struct sockaddr_in)); | |
107 | #ifndef SUNOS_5 | |
108 | memcpy (&rtentry.rt_genmask, &sin_mask, sizeof (struct sockaddr_in)); | |
109 | #endif /* SUNOS_5 */ | |
110 | ||
111 | /* Routing entry flag set. */ | |
112 | if (dest->prefixlen == 32) | |
113 | rtentry.rt_flags |= RTF_HOST; | |
114 | ||
115 | if (gate && gate->s_addr != INADDR_ANY) | |
116 | rtentry.rt_flags |= RTF_GATEWAY; | |
117 | ||
118 | rtentry.rt_flags |= RTF_UP; | |
119 | ||
120 | /* Additional flags */ | |
121 | rtentry.rt_flags |= flags; | |
122 | ||
123 | ||
124 | /* For tagging route. */ | |
125 | /* rtentry.rt_flags |= RTF_DYNAMIC; */ | |
126 | ||
127 | /* Open socket for ioctl. */ | |
128 | sock = socket (AF_INET, SOCK_DGRAM, 0); | |
129 | if (sock < 0) | |
130 | { | |
131 | zlog_warn ("can't make socket\n"); | |
132 | return -1; | |
133 | } | |
134 | ||
135 | /* Send message by ioctl(). */ | |
136 | ret = ioctl (sock, SIOCADDRT, &rtentry); | |
137 | if (ret < 0) | |
138 | { | |
139 | switch (errno) | |
140 | { | |
141 | case EEXIST: | |
142 | close (sock); | |
143 | return ZEBRA_ERR_RTEXIST; | |
144 | break; | |
145 | case ENETUNREACH: | |
146 | close (sock); | |
147 | return ZEBRA_ERR_RTUNREACH; | |
148 | break; | |
149 | case EPERM: | |
150 | close (sock); | |
151 | return ZEBRA_ERR_EPERM; | |
152 | break; | |
153 | } | |
154 | ||
155 | close (sock); | |
6099b3b5 | 156 | zlog_warn ("write : %s (%d)", safe_strerror (errno), errno); |
718e3744 | 157 | return 1; |
158 | } | |
159 | close (sock); | |
160 | ||
161 | return ret; | |
162 | } | |
163 | ||
164 | /* Interface to ioctl route message. */ | |
a1ac18c4 | 165 | static int |
718e3744 | 166 | kernel_ioctl_ipv4 (u_long cmd, struct prefix *p, struct rib *rib, int family) |
167 | { | |
168 | int ret; | |
169 | int sock; | |
170 | struct rtentry rtentry; | |
171 | struct sockaddr_in sin_dest, sin_mask, sin_gate; | |
172 | struct nexthop *nexthop; | |
173 | int nexthop_num = 0; | |
174 | struct interface *ifp; | |
175 | ||
176 | memset (&rtentry, 0, sizeof (struct rtentry)); | |
177 | ||
178 | /* Make destination. */ | |
179 | memset (&sin_dest, 0, sizeof (struct sockaddr_in)); | |
180 | sin_dest.sin_family = AF_INET; | |
6f0e3f6e | 181 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 182 | sin_dest.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 183 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 184 | sin_dest.sin_addr = p->u.prefix4; |
185 | ||
186 | if (CHECK_FLAG (rib->flags, ZEBRA_FLAG_BLACKHOLE)) | |
187 | { | |
188 | SET_FLAG (rtentry.rt_flags, RTF_REJECT); | |
189 | ||
190 | if (cmd == SIOCADDRT) | |
191 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
192 | SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB); | |
193 | ||
194 | goto skip; | |
195 | } | |
196 | ||
197 | memset (&sin_gate, 0, sizeof (struct sockaddr_in)); | |
198 | ||
199 | /* Make gateway. */ | |
200 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
201 | { | |
202 | if ((cmd == SIOCADDRT | |
203 | && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
204 | || (cmd == SIOCDELRT | |
205 | && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB))) | |
206 | { | |
207 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE)) | |
208 | { | |
209 | if (nexthop->rtype == NEXTHOP_TYPE_IPV4 || | |
210 | nexthop->rtype == NEXTHOP_TYPE_IPV4_IFINDEX) | |
211 | { | |
212 | sin_gate.sin_family = AF_INET; | |
6f0e3f6e | 213 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 214 | sin_gate.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 215 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 216 | sin_gate.sin_addr = nexthop->rgate.ipv4; |
217 | rtentry.rt_flags |= RTF_GATEWAY; | |
218 | } | |
219 | if (nexthop->rtype == NEXTHOP_TYPE_IFINDEX | |
220 | || nexthop->rtype == NEXTHOP_TYPE_IFNAME) | |
221 | { | |
222 | ifp = if_lookup_by_index (nexthop->rifindex); | |
223 | if (ifp) | |
224 | rtentry.rt_dev = ifp->name; | |
225 | else | |
226 | return -1; | |
227 | } | |
228 | } | |
229 | else | |
230 | { | |
231 | if (nexthop->type == NEXTHOP_TYPE_IPV4 || | |
232 | nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX) | |
233 | { | |
234 | sin_gate.sin_family = AF_INET; | |
6f0e3f6e | 235 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 236 | sin_gate.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 237 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 238 | sin_gate.sin_addr = nexthop->gate.ipv4; |
239 | rtentry.rt_flags |= RTF_GATEWAY; | |
240 | } | |
241 | if (nexthop->type == NEXTHOP_TYPE_IFINDEX | |
242 | || nexthop->type == NEXTHOP_TYPE_IFNAME) | |
243 | { | |
244 | ifp = if_lookup_by_index (nexthop->ifindex); | |
245 | if (ifp) | |
246 | rtentry.rt_dev = ifp->name; | |
247 | else | |
248 | return -1; | |
249 | } | |
250 | } | |
251 | ||
252 | if (cmd == SIOCADDRT) | |
253 | SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB); | |
254 | ||
255 | nexthop_num++; | |
256 | break; | |
257 | } | |
258 | } | |
259 | ||
260 | /* If there is no useful nexthop then return. */ | |
261 | if (nexthop_num == 0) | |
262 | { | |
263 | if (IS_ZEBRA_DEBUG_KERNEL) | |
b6178002 | 264 | zlog_debug ("netlink_route_multipath(): No useful nexthop."); |
718e3744 | 265 | return 0; |
266 | } | |
267 | ||
268 | skip: | |
269 | ||
270 | memset (&sin_mask, 0, sizeof (struct sockaddr_in)); | |
271 | sin_mask.sin_family = AF_INET; | |
6f0e3f6e | 272 | #ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN |
718e3744 | 273 | sin_mask.sin_len = sizeof (struct sockaddr_in); |
6f0e3f6e | 274 | #endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */ |
718e3744 | 275 | masklen2ip (p->prefixlen, &sin_mask.sin_addr); |
276 | ||
277 | /* Set destination address, mask and gateway.*/ | |
278 | memcpy (&rtentry.rt_dst, &sin_dest, sizeof (struct sockaddr_in)); | |
279 | ||
280 | if (rtentry.rt_flags & RTF_GATEWAY) | |
281 | memcpy (&rtentry.rt_gateway, &sin_gate, sizeof (struct sockaddr_in)); | |
282 | ||
283 | #ifndef SUNOS_5 | |
284 | memcpy (&rtentry.rt_genmask, &sin_mask, sizeof (struct sockaddr_in)); | |
285 | #endif /* SUNOS_5 */ | |
286 | ||
287 | /* Metric. It seems metric minus one value is installed... */ | |
288 | rtentry.rt_metric = rib->metric; | |
289 | ||
290 | /* Routing entry flag set. */ | |
291 | if (p->prefixlen == 32) | |
292 | rtentry.rt_flags |= RTF_HOST; | |
293 | ||
294 | rtentry.rt_flags |= RTF_UP; | |
295 | ||
296 | /* Additional flags */ | |
297 | /* rtentry.rt_flags |= flags; */ | |
298 | ||
299 | /* For tagging route. */ | |
300 | /* rtentry.rt_flags |= RTF_DYNAMIC; */ | |
301 | ||
302 | /* Open socket for ioctl. */ | |
303 | sock = socket (AF_INET, SOCK_DGRAM, 0); | |
304 | if (sock < 0) | |
305 | { | |
306 | zlog_warn ("can't make socket\n"); | |
307 | return -1; | |
308 | } | |
309 | ||
310 | /* Send message by ioctl(). */ | |
311 | ret = ioctl (sock, cmd, &rtentry); | |
312 | if (ret < 0) | |
313 | { | |
314 | switch (errno) | |
315 | { | |
316 | case EEXIST: | |
317 | close (sock); | |
318 | return ZEBRA_ERR_RTEXIST; | |
319 | break; | |
320 | case ENETUNREACH: | |
321 | close (sock); | |
322 | return ZEBRA_ERR_RTUNREACH; | |
323 | break; | |
324 | case EPERM: | |
325 | close (sock); | |
326 | return ZEBRA_ERR_EPERM; | |
327 | break; | |
328 | } | |
329 | ||
330 | close (sock); | |
6099b3b5 | 331 | zlog_warn ("write : %s (%d)", safe_strerror (errno), errno); |
718e3744 | 332 | return ret; |
333 | } | |
334 | close (sock); | |
335 | ||
336 | return ret; | |
337 | } | |
338 | ||
339 | int | |
340 | kernel_add_ipv4 (struct prefix *p, struct rib *rib) | |
341 | { | |
342 | return kernel_ioctl_ipv4 (SIOCADDRT, p, rib, AF_INET); | |
343 | } | |
344 | ||
345 | int | |
346 | kernel_delete_ipv4 (struct prefix *p, struct rib *rib) | |
347 | { | |
348 | return kernel_ioctl_ipv4 (SIOCDELRT, p, rib, AF_INET); | |
349 | } | |
350 | \f | |
351 | #ifdef HAVE_IPV6 | |
352 | ||
353 | /* Below is hack for GNU libc definition and Linux 2.1.X header. */ | |
354 | #undef RTF_DEFAULT | |
355 | #undef RTF_ADDRCONF | |
356 | ||
357 | #include <asm/types.h> | |
358 | ||
359 | #if defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1 | |
360 | /* struct in6_rtmsg will be declared in net/route.h. */ | |
361 | #else | |
362 | #include <linux/ipv6_route.h> | |
363 | #endif | |
364 | ||
a1ac18c4 | 365 | static int |
718e3744 | 366 | kernel_ioctl_ipv6 (u_long type, struct prefix_ipv6 *dest, struct in6_addr *gate, |
367 | int index, int flags) | |
368 | { | |
369 | int ret; | |
370 | int sock; | |
371 | struct in6_rtmsg rtm; | |
372 | ||
373 | memset (&rtm, 0, sizeof (struct in6_rtmsg)); | |
374 | ||
375 | rtm.rtmsg_flags |= RTF_UP; | |
376 | rtm.rtmsg_metric = 1; | |
377 | memcpy (&rtm.rtmsg_dst, &dest->prefix, sizeof (struct in6_addr)); | |
378 | rtm.rtmsg_dst_len = dest->prefixlen; | |
379 | ||
380 | /* We need link local index. But this should be done caller... | |
381 | if (IN6_IS_ADDR_LINKLOCAL(&rtm.rtmsg_gateway)) | |
382 | { | |
383 | index = if_index_address (&rtm.rtmsg_gateway); | |
384 | rtm.rtmsg_ifindex = index; | |
385 | } | |
386 | else | |
387 | rtm.rtmsg_ifindex = 0; | |
388 | */ | |
389 | ||
390 | rtm.rtmsg_flags |= RTF_GATEWAY; | |
391 | ||
392 | /* For tagging route. */ | |
393 | /* rtm.rtmsg_flags |= RTF_DYNAMIC; */ | |
394 | ||
395 | memcpy (&rtm.rtmsg_gateway, gate, sizeof (struct in6_addr)); | |
396 | ||
397 | if (index) | |
398 | rtm.rtmsg_ifindex = index; | |
399 | else | |
400 | rtm.rtmsg_ifindex = 0; | |
401 | ||
402 | rtm.rtmsg_metric = 1; | |
403 | ||
404 | sock = socket (AF_INET6, SOCK_DGRAM, 0); | |
405 | if (sock < 0) | |
406 | { | |
407 | zlog_warn ("can't make socket\n"); | |
408 | return -1; | |
409 | } | |
410 | ||
411 | /* Send message via ioctl. */ | |
412 | ret = ioctl (sock, type, &rtm); | |
413 | if (ret < 0) | |
414 | { | |
415 | zlog_warn ("can't %s ipv6 route: %s\n", type == SIOCADDRT ? "add" : "delete", | |
6099b3b5 | 416 | safe_strerror(errno)); |
718e3744 | 417 | ret = errno; |
418 | close (sock); | |
419 | return ret; | |
420 | } | |
421 | close (sock); | |
422 | ||
423 | return ret; | |
424 | } | |
425 | ||
a1ac18c4 | 426 | static int |
718e3744 | 427 | kernel_ioctl_ipv6_multipath (u_long cmd, struct prefix *p, struct rib *rib, |
428 | int family) | |
429 | { | |
430 | int ret; | |
431 | int sock; | |
432 | struct in6_rtmsg rtm; | |
433 | struct nexthop *nexthop; | |
434 | int nexthop_num = 0; | |
435 | ||
436 | memset (&rtm, 0, sizeof (struct in6_rtmsg)); | |
437 | ||
438 | rtm.rtmsg_flags |= RTF_UP; | |
439 | rtm.rtmsg_metric = rib->metric; | |
440 | memcpy (&rtm.rtmsg_dst, &p->u.prefix, sizeof (struct in6_addr)); | |
441 | rtm.rtmsg_dst_len = p->prefixlen; | |
442 | ||
443 | /* We need link local index. But this should be done caller... | |
444 | if (IN6_IS_ADDR_LINKLOCAL(&rtm.rtmsg_gateway)) | |
445 | { | |
446 | index = if_index_address (&rtm.rtmsg_gateway); | |
447 | rtm.rtmsg_ifindex = index; | |
448 | } | |
449 | else | |
450 | rtm.rtmsg_ifindex = 0; | |
451 | */ | |
452 | ||
453 | rtm.rtmsg_flags |= RTF_GATEWAY; | |
454 | ||
455 | /* For tagging route. */ | |
456 | /* rtm.rtmsg_flags |= RTF_DYNAMIC; */ | |
457 | ||
458 | /* Make gateway. */ | |
459 | for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next) | |
460 | { | |
461 | if ((cmd == SIOCADDRT | |
462 | && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE)) | |
463 | || (cmd == SIOCDELRT | |
464 | && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB))) | |
465 | { | |
466 | if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE)) | |
467 | { | |
468 | if (nexthop->rtype == NEXTHOP_TYPE_IPV6 | |
469 | || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME | |
470 | || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX) | |
471 | { | |
472 | memcpy (&rtm.rtmsg_gateway, &nexthop->rgate.ipv6, | |
473 | sizeof (struct in6_addr)); | |
474 | } | |
475 | if (nexthop->rtype == NEXTHOP_TYPE_IFINDEX | |
476 | || nexthop->rtype == NEXTHOP_TYPE_IFNAME | |
477 | || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME | |
478 | || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX) | |
479 | rtm.rtmsg_ifindex = nexthop->rifindex; | |
480 | else | |
481 | rtm.rtmsg_ifindex = 0; | |
482 | ||
483 | } | |
484 | else | |
485 | { | |
486 | if (nexthop->type == NEXTHOP_TYPE_IPV6 | |
487 | || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME | |
488 | || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) | |
489 | { | |
490 | memcpy (&rtm.rtmsg_gateway, &nexthop->gate.ipv6, | |
491 | sizeof (struct in6_addr)); | |
492 | } | |
493 | if (nexthop->type == NEXTHOP_TYPE_IFINDEX | |
494 | || nexthop->type == NEXTHOP_TYPE_IFNAME | |
495 | || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME | |
496 | || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) | |
497 | rtm.rtmsg_ifindex = nexthop->ifindex; | |
498 | else | |
499 | rtm.rtmsg_ifindex = 0; | |
500 | } | |
501 | ||
502 | if (cmd == SIOCADDRT) | |
503 | SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB); | |
504 | ||
505 | nexthop_num++; | |
506 | break; | |
507 | } | |
508 | } | |
509 | ||
510 | /* If there is no useful nexthop then return. */ | |
511 | if (nexthop_num == 0) | |
512 | { | |
513 | if (IS_ZEBRA_DEBUG_KERNEL) | |
b6178002 | 514 | zlog_debug ("netlink_route_multipath(): No useful nexthop."); |
718e3744 | 515 | return 0; |
516 | } | |
517 | ||
518 | sock = socket (AF_INET6, SOCK_DGRAM, 0); | |
519 | if (sock < 0) | |
520 | { | |
521 | zlog_warn ("can't make socket\n"); | |
522 | return -1; | |
523 | } | |
524 | ||
525 | /* Send message via ioctl. */ | |
526 | ret = ioctl (sock, cmd, &rtm); | |
527 | if (ret < 0) | |
528 | { | |
529 | zlog_warn ("can't %s ipv6 route: %s\n", | |
530 | cmd == SIOCADDRT ? "add" : "delete", | |
6099b3b5 | 531 | safe_strerror(errno)); |
718e3744 | 532 | ret = errno; |
533 | close (sock); | |
534 | return ret; | |
535 | } | |
536 | close (sock); | |
537 | ||
538 | return ret; | |
539 | } | |
540 | ||
541 | int | |
542 | kernel_add_ipv6 (struct prefix *p, struct rib *rib) | |
543 | { | |
544 | return kernel_ioctl_ipv6_multipath (SIOCADDRT, p, rib, AF_INET6); | |
545 | } | |
546 | ||
547 | int | |
548 | kernel_delete_ipv6 (struct prefix *p, struct rib *rib) | |
549 | { | |
550 | return kernel_ioctl_ipv6_multipath (SIOCDELRT, p, rib, AF_INET6); | |
551 | } | |
552 | ||
553 | /* Delete IPv6 route from the kernel. */ | |
554 | int | |
555 | kernel_delete_ipv6_old (struct prefix_ipv6 *dest, struct in6_addr *gate, | |
a1ac18c4 | 556 | unsigned int index, int flags, int table) |
718e3744 | 557 | { |
558 | return kernel_ioctl_ipv6 (SIOCDELRT, dest, gate, index, flags); | |
559 | } | |
560 | #endif /* HAVE_IPV6 */ |