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7e24fdf3 | 1 | /* |
8d5cbee9 | 2 | * STATICd - route code |
7e24fdf3 DS |
3 | * Copyright (C) 2018 Cumulus Networks, Inc. |
4 | * Donald Sharp | |
5 | * | |
8d5cbee9 DS |
6 | * This program is free software; you can redistribute it and/or modify it |
7 | * under the terms of the GNU General Public License as published by the Free | |
8 | * Software Foundation; either version 2 of the License, or (at your option) | |
9 | * any later version. | |
7e24fdf3 | 10 | * |
8d5cbee9 DS |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
7e24fdf3 DS |
15 | * |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | #include <zebra.h> | |
21 | ||
22 | #include <lib/nexthop.h> | |
23 | #include <lib/memory.h> | |
24 | #include <lib/srcdest_table.h> | |
25 | #include <lib/if.h> | |
26 | #include <lib/vty.h> | |
27 | #include <lib/vrf.h> | |
28 | #include <lib/memory.h> | |
29 | ||
30 | #include "static_vrf.h" | |
31 | #include "static_routes.h" | |
32 | #include "static_memory.h" | |
33 | #include "static_zebra.h" | |
34 | ||
35 | /* Install static route into rib. */ | |
8bc8de2c DS |
36 | static void static_install_route(struct route_node *rn, |
37 | struct static_route *si_changed, safi_t safi) | |
7e24fdf3 DS |
38 | { |
39 | struct static_route *si; | |
40 | ||
41 | for (si = rn->info; si; si = si->next) | |
27da3044 | 42 | static_zebra_nht_register(rn, si, true); |
7e24fdf3 DS |
43 | |
44 | si = rn->info; | |
45 | if (si) | |
8bc8de2c | 46 | static_zebra_route_add(rn, si_changed, si->vrf_id, safi, true); |
7e24fdf3 DS |
47 | |
48 | } | |
49 | ||
50 | /* Uninstall static route from RIB. */ | |
51 | static void static_uninstall_route(vrf_id_t vrf_id, safi_t safi, | |
8bc8de2c DS |
52 | struct route_node *rn, |
53 | struct static_route *si_changed) | |
7e24fdf3 DS |
54 | { |
55 | ||
56 | if (rn->info) | |
8bc8de2c | 57 | static_zebra_route_add(rn, si_changed, vrf_id, safi, true); |
7e24fdf3 | 58 | else |
8bc8de2c | 59 | static_zebra_route_add(rn, si_changed, vrf_id, safi, false); |
7e24fdf3 DS |
60 | } |
61 | ||
62 | int static_add_route(afi_t afi, safi_t safi, uint8_t type, struct prefix *p, | |
63 | struct prefix_ipv6 *src_p, union g_addr *gate, | |
64 | const char *ifname, enum static_blackhole_type bh_type, | |
65 | route_tag_t tag, uint8_t distance, struct static_vrf *svrf, | |
66 | struct static_vrf *nh_svrf, | |
02dc8ba3 QY |
67 | struct static_nh_label *snh_label, uint32_t table_id, |
68 | bool onlink) | |
7e24fdf3 DS |
69 | { |
70 | struct route_node *rn; | |
71 | struct static_route *si; | |
72 | struct static_route *pp; | |
73 | struct static_route *cp; | |
74 | struct static_route *update = NULL; | |
75 | struct route_table *stable = svrf->stable[afi][safi]; | |
a6e85307 | 76 | struct interface *ifp; |
7e24fdf3 DS |
77 | |
78 | if (!stable) | |
79 | return -1; | |
80 | ||
81 | if (!gate && (type == STATIC_IPV4_GATEWAY | |
82 | || type == STATIC_IPV4_GATEWAY_IFNAME | |
83 | || type == STATIC_IPV6_GATEWAY | |
84 | || type == STATIC_IPV6_GATEWAY_IFNAME)) | |
85 | return -1; | |
86 | ||
87 | if (!ifname | |
88 | && (type == STATIC_IFNAME || type == STATIC_IPV4_GATEWAY_IFNAME | |
89 | || type == STATIC_IPV6_GATEWAY_IFNAME)) | |
90 | return -1; | |
91 | ||
92 | /* Lookup static route prefix. */ | |
93 | rn = srcdest_rnode_get(stable, p, src_p); | |
94 | ||
95 | /* Do nothing if there is a same static route. */ | |
96 | for (si = rn->info; si; si = si->next) { | |
97 | if (type == si->type | |
98 | && (!gate | |
99 | || ((afi == AFI_IP | |
100 | && IPV4_ADDR_SAME(&gate->ipv4, &si->addr.ipv4)) | |
101 | || (afi == AFI_IP6 | |
102 | && IPV6_ADDR_SAME(gate, &si->addr.ipv6)))) | |
103 | && (!strcmp(ifname ? ifname : "", si->ifname))) { | |
104 | if ((distance == si->distance) && (tag == si->tag) | |
105 | && (table_id == si->table_id) | |
106 | && !memcmp(&si->snh_label, snh_label, | |
107 | sizeof(struct static_nh_label)) | |
02dc8ba3 | 108 | && si->bh_type == bh_type && si->onlink == onlink) { |
7e24fdf3 DS |
109 | route_unlock_node(rn); |
110 | return 0; | |
111 | } | |
112 | update = si; | |
113 | } | |
114 | } | |
115 | ||
116 | /* Distance or tag or label changed, delete existing first. */ | |
117 | if (update) | |
118 | static_delete_route(afi, safi, type, p, src_p, gate, ifname, | |
119 | update->tag, update->distance, svrf, | |
120 | &update->snh_label, table_id); | |
121 | ||
122 | /* Make new static route structure. */ | |
123 | si = XCALLOC(MTYPE_STATIC_ROUTE, sizeof(struct static_route)); | |
124 | ||
125 | si->type = type; | |
126 | si->distance = distance; | |
127 | si->bh_type = bh_type; | |
128 | si->tag = tag; | |
129 | si->vrf_id = svrf->vrf->vrf_id; | |
130 | si->nh_vrf_id = nh_svrf->vrf->vrf_id; | |
2dfe5a07 | 131 | strlcpy(si->nh_vrfname, nh_svrf->vrf->name, sizeof(si->nh_vrfname)); |
7e24fdf3 | 132 | si->table_id = table_id; |
02dc8ba3 | 133 | si->onlink = onlink; |
7e24fdf3 DS |
134 | |
135 | if (ifname) | |
136 | strlcpy(si->ifname, ifname, sizeof(si->ifname)); | |
137 | si->ifindex = IFINDEX_INTERNAL; | |
138 | ||
139 | switch (type) { | |
140 | case STATIC_IPV4_GATEWAY: | |
141 | case STATIC_IPV4_GATEWAY_IFNAME: | |
142 | si->addr.ipv4 = gate->ipv4; | |
143 | break; | |
144 | case STATIC_IPV6_GATEWAY: | |
145 | case STATIC_IPV6_GATEWAY_IFNAME: | |
146 | si->addr.ipv6 = gate->ipv6; | |
147 | break; | |
148 | case STATIC_IFNAME: | |
149 | break; | |
150 | } | |
151 | ||
152 | /* Save labels, if any. */ | |
153 | memcpy(&si->snh_label, snh_label, sizeof(struct static_nh_label)); | |
154 | ||
155 | /* | |
156 | * Add new static route information to the tree with sort by | |
157 | * distance value and gateway address. | |
158 | */ | |
159 | for (pp = NULL, cp = rn->info; cp; pp = cp, cp = cp->next) { | |
160 | if (si->distance < cp->distance) | |
161 | break; | |
162 | if (si->distance > cp->distance) | |
163 | continue; | |
164 | if (si->type == STATIC_IPV4_GATEWAY | |
165 | && cp->type == STATIC_IPV4_GATEWAY) { | |
166 | if (ntohl(si->addr.ipv4.s_addr) | |
167 | < ntohl(cp->addr.ipv4.s_addr)) | |
168 | break; | |
169 | if (ntohl(si->addr.ipv4.s_addr) | |
170 | > ntohl(cp->addr.ipv4.s_addr)) | |
171 | continue; | |
172 | } | |
173 | } | |
174 | ||
175 | /* Make linked list. */ | |
176 | if (pp) | |
177 | pp->next = si; | |
178 | else | |
179 | rn->info = si; | |
180 | if (cp) | |
181 | cp->prev = si; | |
182 | si->prev = pp; | |
183 | si->next = cp; | |
184 | ||
185 | /* check whether interface exists in system & install if it does */ | |
a6e85307 DS |
186 | switch (si->type) { |
187 | case STATIC_IPV4_GATEWAY: | |
188 | case STATIC_IPV6_GATEWAY: | |
6f5db0b1 | 189 | static_zebra_nht_register(rn, si, true); |
a6e85307 DS |
190 | break; |
191 | case STATIC_IPV4_GATEWAY_IFNAME: | |
192 | case STATIC_IPV6_GATEWAY_IFNAME: | |
193 | ifp = if_lookup_by_name(ifname, nh_svrf->vrf->vrf_id); | |
194 | if (ifp && ifp->ifindex != IFINDEX_INTERNAL) | |
195 | si->ifindex = ifp->ifindex; | |
196 | else | |
197 | zlog_warn("Static Route using %s interface not installed because the interface does not exist in specified vrf", | |
198 | ifname); | |
7e24fdf3 | 199 | |
a6e85307 DS |
200 | static_zebra_nht_register(rn, si, true); |
201 | break; | |
202 | case STATIC_BLACKHOLE: | |
203 | static_install_route(rn, si, safi); | |
204 | break; | |
205 | case STATIC_IFNAME: | |
a36898e7 | 206 | ifp = if_lookup_by_name(ifname, nh_svrf->vrf->vrf_id); |
7e24fdf3 DS |
207 | if (ifp && ifp->ifindex != IFINDEX_INTERNAL) { |
208 | si->ifindex = ifp->ifindex; | |
8bc8de2c | 209 | static_install_route(rn, si, safi); |
7e24fdf3 DS |
210 | } else |
211 | zlog_warn("Static Route using %s interface not installed because the interface does not exist in specified vrf", | |
212 | ifname); | |
a6e85307 DS |
213 | |
214 | break; | |
7e24fdf3 DS |
215 | } |
216 | ||
217 | return 1; | |
218 | } | |
219 | ||
220 | int static_delete_route(afi_t afi, safi_t safi, uint8_t type, struct prefix *p, | |
221 | struct prefix_ipv6 *src_p, union g_addr *gate, | |
222 | const char *ifname, route_tag_t tag, uint8_t distance, | |
223 | struct static_vrf *svrf, | |
224 | struct static_nh_label *snh_label, | |
225 | uint32_t table_id) | |
226 | { | |
227 | struct route_node *rn; | |
228 | struct static_route *si; | |
229 | struct route_table *stable; | |
230 | ||
231 | /* Lookup table. */ | |
232 | stable = static_vrf_static_table(afi, safi, svrf); | |
233 | if (!stable) | |
234 | return -1; | |
235 | ||
236 | /* Lookup static route prefix. */ | |
237 | rn = srcdest_rnode_lookup(stable, p, src_p); | |
238 | if (!rn) | |
239 | return 0; | |
240 | ||
241 | /* Find same static route is the tree */ | |
242 | for (si = rn->info; si; si = si->next) | |
243 | if (type == si->type | |
244 | && (!gate | |
245 | || ((afi == AFI_IP | |
246 | && IPV4_ADDR_SAME(&gate->ipv4, &si->addr.ipv4)) | |
247 | || (afi == AFI_IP6 | |
248 | && IPV6_ADDR_SAME(gate, &si->addr.ipv6)))) | |
249 | && (!strcmp(ifname ? ifname : "", si->ifname)) | |
250 | && (!tag || (tag == si->tag)) | |
251 | && (table_id == si->table_id) | |
252 | && (!snh_label->num_labels | |
253 | || !memcmp(&si->snh_label, snh_label, | |
254 | sizeof(struct static_nh_label)))) | |
255 | break; | |
256 | ||
257 | /* Can't find static route. */ | |
258 | if (!si) { | |
259 | route_unlock_node(rn); | |
260 | return 0; | |
261 | } | |
262 | ||
27da3044 | 263 | static_zebra_nht_register(rn, si, false); |
7e24fdf3 DS |
264 | |
265 | /* Unlink static route from linked list. */ | |
266 | if (si->prev) | |
267 | si->prev->next = si->next; | |
268 | else | |
269 | rn->info = si->next; | |
270 | if (si->next) | |
271 | si->next->prev = si->prev; | |
272 | ||
273 | /* | |
274 | * If we have other si nodes then route replace | |
275 | * else delete the route | |
276 | */ | |
8bc8de2c | 277 | static_uninstall_route(si->vrf_id, safi, rn, si); |
7e24fdf3 DS |
278 | route_unlock_node(rn); |
279 | ||
280 | /* Free static route configuration. */ | |
281 | XFREE(MTYPE_STATIC_ROUTE, si); | |
282 | ||
283 | route_unlock_node(rn); | |
284 | ||
285 | return 1; | |
286 | } | |
287 | ||
288 | static void static_ifindex_update_af(struct interface *ifp, bool up, afi_t afi, | |
289 | safi_t safi) | |
290 | { | |
291 | struct route_table *stable; | |
292 | struct route_node *rn; | |
293 | struct static_route *si; | |
294 | struct vrf *vrf; | |
295 | ||
296 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
297 | struct static_vrf *svrf; | |
298 | ||
299 | svrf = vrf->info; | |
300 | ||
301 | stable = static_vrf_static_table(afi, safi, svrf); | |
302 | if (!stable) | |
303 | continue; | |
304 | ||
305 | for (rn = route_top(stable); rn; rn = srcdest_route_next(rn)) { | |
306 | for (si = rn->info; si; si = si->next) { | |
307 | if (!si->ifname[0]) | |
308 | continue; | |
309 | if (up) { | |
310 | if (strcmp(si->ifname, ifp->name)) | |
311 | continue; | |
312 | si->ifindex = ifp->ifindex; | |
313 | } else { | |
314 | if (si->ifindex != ifp->ifindex) | |
315 | continue; | |
316 | si->ifindex = IFINDEX_INTERNAL; | |
317 | } | |
7e24fdf3 | 318 | |
0b70cb10 DS |
319 | static_install_route(rn, si, safi); |
320 | } | |
7e24fdf3 DS |
321 | } |
322 | } | |
323 | } | |
324 | ||
325 | /* | |
326 | * This function looks at a svrf's stable and notices if any of the | |
327 | * nexthops we are using are part of the vrf coming up. | |
328 | * If we are using them then cleanup the nexthop vrf id | |
329 | * to be the new value and then re-installs them | |
330 | * | |
331 | * | |
332 | * stable -> The table we are looking at. | |
333 | * svrf -> The newly changed vrf. | |
334 | * afi -> The afi to look at | |
335 | * safi -> the safi to look at | |
336 | */ | |
337 | static void static_fixup_vrf(struct static_vrf *svrf, | |
338 | struct route_table *stable, afi_t afi, safi_t safi) | |
339 | { | |
340 | struct route_node *rn; | |
341 | struct static_route *si; | |
342 | struct interface *ifp; | |
7e24fdf3 DS |
343 | |
344 | for (rn = route_top(stable); rn; rn = route_next(rn)) { | |
7e24fdf3 DS |
345 | for (si = rn->info; si; si = si->next) { |
346 | if (strcmp(svrf->vrf->name, si->nh_vrfname) != 0) | |
347 | continue; | |
348 | ||
349 | si->nh_vrf_id = svrf->vrf->vrf_id; | |
6d2a4f37 | 350 | si->nh_registered = false; |
7e24fdf3 | 351 | if (si->ifindex) { |
a36898e7 DS |
352 | ifp = if_lookup_by_name(si->ifname, |
353 | si->nh_vrf_id); | |
7e24fdf3 DS |
354 | if (ifp) |
355 | si->ifindex = ifp->ifindex; | |
356 | else | |
357 | continue; | |
358 | } | |
7e24fdf3 | 359 | |
8bc8de2c | 360 | static_install_route(rn, si, safi); |
0b70cb10 | 361 | } |
7e24fdf3 DS |
362 | } |
363 | } | |
364 | ||
365 | /* | |
366 | * This function enables static routes in a svrf as it | |
367 | * is coming up. It sets the new vrf_id as appropriate. | |
368 | * | |
369 | * svrf -> The svrf that is being brought up and enabled by the kernel | |
370 | * stable -> The stable we are looking at. | |
371 | * afi -> the afi in question | |
372 | * safi -> the safi in question | |
373 | */ | |
374 | static void static_enable_vrf(struct static_vrf *svrf, | |
375 | struct route_table *stable, | |
376 | afi_t afi, safi_t safi) | |
377 | { | |
378 | struct route_node *rn; | |
379 | struct static_route *si; | |
380 | struct interface *ifp; | |
381 | struct vrf *vrf = svrf->vrf; | |
7e24fdf3 DS |
382 | |
383 | for (rn = route_top(stable); rn; rn = route_next(rn)) { | |
7e24fdf3 DS |
384 | for (si = rn->info; si; si = si->next) { |
385 | si->vrf_id = vrf->vrf_id; | |
386 | if (si->ifindex) { | |
387 | ifp = if_lookup_by_name(si->ifname, | |
a36898e7 | 388 | si->nh_vrf_id); |
7e24fdf3 DS |
389 | if (ifp) |
390 | si->ifindex = ifp->ifindex; | |
391 | else | |
392 | continue; | |
393 | } | |
8bc8de2c | 394 | static_install_route(rn, si, safi); |
0b70cb10 | 395 | } |
7e24fdf3 DS |
396 | } |
397 | } | |
398 | ||
399 | /* | |
400 | * When a vrf is being enabled by the kernel, go through all the | |
401 | * static routes in the system that use this vrf (both nexthops vrfs | |
402 | * and the routes vrf ) | |
403 | * | |
404 | * enable_svrf -> the vrf being enabled | |
405 | */ | |
406 | void static_fixup_vrf_ids(struct static_vrf *enable_svrf) | |
407 | { | |
408 | struct route_table *stable; | |
409 | struct vrf *vrf; | |
410 | afi_t afi; | |
411 | safi_t safi; | |
412 | ||
413 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
414 | struct static_vrf *svrf; | |
415 | ||
416 | svrf = vrf->info; | |
417 | /* Install any static routes configured for this VRF. */ | |
418 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
419 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
420 | stable = svrf->stable[afi][safi]; | |
421 | if (!stable) | |
422 | continue; | |
423 | ||
424 | static_fixup_vrf(enable_svrf, stable, | |
425 | afi, safi); | |
426 | ||
427 | if (enable_svrf == svrf) | |
428 | static_enable_vrf(svrf, stable, | |
429 | afi, safi); | |
430 | } | |
431 | } | |
432 | } | |
433 | } | |
434 | ||
435 | /* | |
436 | * Look at the specified stable and if any of the routes in | |
437 | * this table are using the svrf as the nexthop, uninstall | |
438 | * those routes. | |
439 | * | |
440 | * svrf -> the vrf being disabled | |
441 | * stable -> the table we need to look at. | |
442 | * afi -> the afi in question | |
443 | * safi -> the safi in question | |
444 | */ | |
445 | static void static_cleanup_vrf(struct static_vrf *svrf, | |
446 | struct route_table *stable, | |
447 | afi_t afi, safi_t safi) | |
448 | { | |
449 | struct route_node *rn; | |
450 | struct static_route *si; | |
451 | ||
452 | for (rn = route_top(stable); rn; rn = route_next(rn)) { | |
453 | for (si = rn->info; si; si = si->next) { | |
454 | if (strcmp(svrf->vrf->name, si->nh_vrfname) != 0) | |
455 | continue; | |
456 | ||
8bc8de2c | 457 | static_uninstall_route(si->vrf_id, safi, rn, si); |
7e24fdf3 DS |
458 | } |
459 | } | |
460 | } | |
461 | ||
462 | /* | |
463 | * Look at all static routes in this table and uninstall | |
464 | * them. | |
465 | * | |
466 | * stable -> The table to uninstall from | |
467 | * afi -> The afi in question | |
468 | * safi -> the safi in question | |
469 | */ | |
470 | static void static_disable_vrf(struct route_table *stable, | |
471 | afi_t afi, safi_t safi) | |
472 | { | |
473 | struct route_node *rn; | |
474 | struct static_route *si; | |
475 | ||
476 | for (rn = route_top(stable); rn; rn = route_next(rn)) | |
477 | for (si = rn->info; si; si = si->next) | |
8bc8de2c | 478 | static_uninstall_route(si->vrf_id, safi, rn, si); |
7e24fdf3 DS |
479 | } |
480 | ||
481 | /* | |
482 | * When the disable_svrf is shutdown by the kernel, we call | |
483 | * this function and it cleans up all static routes using | |
484 | * this vrf as a nexthop as well as all static routes | |
485 | * in it's stables. | |
486 | * | |
487 | * disable_svrf - The vrf being disabled | |
488 | */ | |
489 | void static_cleanup_vrf_ids(struct static_vrf *disable_svrf) | |
490 | { | |
491 | struct vrf *vrf; | |
492 | afi_t afi; | |
493 | safi_t safi; | |
494 | ||
495 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { | |
496 | struct static_vrf *svrf; | |
497 | ||
498 | svrf = vrf->info; | |
499 | ||
500 | /* Uninstall any static routes configured for this VRF. */ | |
501 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
502 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
503 | struct route_table *stable; | |
504 | ||
505 | stable = svrf->stable[afi][safi]; | |
506 | if (!stable) | |
507 | continue; | |
508 | ||
509 | static_cleanup_vrf(disable_svrf, stable, | |
510 | afi, safi); | |
511 | ||
512 | if (disable_svrf == svrf) | |
513 | static_disable_vrf(stable, afi, safi); | |
514 | } | |
515 | } | |
516 | } | |
517 | } | |
518 | ||
a9be49bc DS |
519 | /* |
520 | * This function enables static routes when an interface it relies | |
521 | * on in a different vrf is coming up. | |
522 | * | |
a9be49bc DS |
523 | * stable -> The stable we are looking at. |
524 | * ifp -> interface coming up | |
525 | * afi -> the afi in question | |
526 | * safi -> the safi in question | |
527 | */ | |
528 | static void static_fixup_intf_nh(struct route_table *stable, | |
529 | struct interface *ifp, | |
530 | afi_t afi, safi_t safi) | |
531 | { | |
532 | struct route_node *rn; | |
533 | struct static_route *si; | |
534 | ||
535 | for (rn = route_top(stable); rn; rn = route_next(rn)) { | |
536 | for (si = rn->info; si; si = si->next) { | |
a36898e7 | 537 | if (si->nh_vrf_id != ifp->vrf_id) |
a9be49bc DS |
538 | continue; |
539 | ||
540 | if (si->ifindex != ifp->ifindex) | |
541 | continue; | |
542 | ||
543 | static_install_route(rn, si, safi); | |
544 | } | |
545 | } | |
546 | } | |
547 | ||
548 | /* | |
549 | * This function enables static routes that rely on an interface in | |
550 | * a different vrf when that interface comes up. | |
551 | */ | |
552 | void static_install_intf_nh(struct interface *ifp) | |
553 | { | |
554 | struct route_table *stable; | |
555 | struct vrf *vrf; | |
556 | afi_t afi; | |
557 | safi_t safi; | |
558 | ||
559 | RB_FOREACH(vrf, vrf_name_head, &vrfs_by_name) { | |
560 | struct static_vrf *svrf = vrf->info; | |
561 | ||
562 | /* Not needed if same vrf since happens naturally */ | |
a36898e7 | 563 | if (vrf->vrf_id == ifp->vrf_id) |
a9be49bc DS |
564 | continue; |
565 | ||
566 | /* Install any static routes configured for this interface. */ | |
567 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
568 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) { | |
569 | stable = svrf->stable[afi][safi]; | |
570 | if (!stable) | |
571 | continue; | |
572 | ||
573 | static_fixup_intf_nh(stable, ifp, afi, safi); | |
574 | } | |
575 | } | |
576 | } | |
577 | } | |
578 | ||
7e24fdf3 DS |
579 | /* called from if_{add,delete}_update, i.e. when ifindex becomes [in]valid */ |
580 | void static_ifindex_update(struct interface *ifp, bool up) | |
581 | { | |
582 | static_ifindex_update_af(ifp, up, AFI_IP, SAFI_UNICAST); | |
583 | static_ifindex_update_af(ifp, up, AFI_IP, SAFI_MULTICAST); | |
584 | static_ifindex_update_af(ifp, up, AFI_IP6, SAFI_UNICAST); | |
585 | static_ifindex_update_af(ifp, up, AFI_IP6, SAFI_MULTICAST); | |
586 | } |