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718e3744 | 1 | /* |
2 | * Interface related function for RIPng. | |
3 | * Copyright (C) 1998 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 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "linklist.h" | |
25 | #include "if.h" | |
26 | #include "prefix.h" | |
27 | #include "memory.h" | |
28 | #include "network.h" | |
29 | #include "filter.h" | |
30 | #include "log.h" | |
31 | #include "stream.h" | |
32 | #include "zclient.h" | |
33 | #include "command.h" | |
fe08ba7e | 34 | #include "agg_table.h" |
718e3744 | 35 | #include "thread.h" |
4d4653af | 36 | #include "privs.h" |
6a69b354 | 37 | #include "vrf.h" |
7f9a4fd7 | 38 | #include "lib_errors.h" |
718e3744 | 39 | |
40 | #include "ripngd/ripngd.h" | |
41 | #include "ripngd/ripng_debug.h" | |
6b0655a2 | 42 | |
718e3744 | 43 | /* If RFC2133 definition is used. */ |
44 | #ifndef IPV6_JOIN_GROUP | |
45 | #define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP | |
46 | #endif | |
47 | #ifndef IPV6_LEAVE_GROUP | |
48 | #define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP | |
49 | #endif | |
50 | ||
51 | /* Static utility function. */ | |
d62a17ae | 52 | static void ripng_enable_apply(struct interface *); |
53 | static void ripng_passive_interface_apply(struct interface *); | |
54 | static int ripng_enable_if_lookup(const char *); | |
55 | static int ripng_enable_network_lookup2(struct connected *); | |
56 | static void ripng_enable_apply_all(void); | |
718e3744 | 57 | |
58 | /* Join to the all rip routers multicast group. */ | |
d62a17ae | 59 | static int ripng_multicast_join(struct interface *ifp) |
718e3744 | 60 | { |
d62a17ae | 61 | int ret; |
62 | struct ipv6_mreq mreq; | |
63 | int save_errno; | |
64 | ||
65 | if (if_is_multicast(ifp)) { | |
66 | memset(&mreq, 0, sizeof(mreq)); | |
67 | inet_pton(AF_INET6, RIPNG_GROUP, &mreq.ipv6mr_multiaddr); | |
68 | mreq.ipv6mr_interface = ifp->ifindex; | |
69 | ||
70 | /* | |
71 | * NetBSD 1.6.2 requires root to join groups on gif(4). | |
72 | * While this is bogus, privs are available and easy to use | |
73 | * for this call as a workaround. | |
74 | */ | |
01b9e3fd | 75 | frr_elevate_privs(&ripngd_privs) { |
d62a17ae | 76 | |
01b9e3fd DL |
77 | ret = setsockopt(ripng->sock, IPPROTO_IPV6, |
78 | IPV6_JOIN_GROUP, | |
79 | (char *)&mreq, sizeof(mreq)); | |
80 | save_errno = errno; | |
d62a17ae | 81 | |
01b9e3fd | 82 | } |
d62a17ae | 83 | |
84 | if (ret < 0 && save_errno == EADDRINUSE) { | |
85 | /* | |
86 | * Group is already joined. This occurs due to sloppy | |
87 | * group | |
88 | * management, in particular declining to leave the | |
89 | * group on | |
90 | * an interface that has just gone down. | |
91 | */ | |
92 | zlog_warn("ripng join on %s EADDRINUSE (ignoring)\n", | |
93 | ifp->name); | |
94 | return 0; /* not an error */ | |
95 | } | |
96 | ||
97 | if (ret < 0) | |
98 | zlog_warn("can't setsockopt IPV6_JOIN_GROUP: %s", | |
99 | safe_strerror(save_errno)); | |
100 | ||
101 | if (IS_RIPNG_DEBUG_EVENT) | |
102 | zlog_debug( | |
103 | "RIPng %s join to all-rip-routers multicast group", | |
104 | ifp->name); | |
105 | ||
106 | if (ret < 0) | |
107 | return -1; | |
108 | } | |
109 | return 0; | |
718e3744 | 110 | } |
111 | ||
112 | /* Leave from the all rip routers multicast group. */ | |
d62a17ae | 113 | static int ripng_multicast_leave(struct interface *ifp) |
718e3744 | 114 | { |
d62a17ae | 115 | int ret; |
116 | struct ipv6_mreq mreq; | |
117 | ||
118 | if (if_is_multicast(ifp)) { | |
119 | memset(&mreq, 0, sizeof(mreq)); | |
120 | inet_pton(AF_INET6, RIPNG_GROUP, &mreq.ipv6mr_multiaddr); | |
121 | mreq.ipv6mr_interface = ifp->ifindex; | |
122 | ||
123 | ret = setsockopt(ripng->sock, IPPROTO_IPV6, IPV6_LEAVE_GROUP, | |
124 | (char *)&mreq, sizeof(mreq)); | |
125 | if (ret < 0) | |
126 | zlog_warn("can't setsockopt IPV6_LEAVE_GROUP: %s\n", | |
127 | safe_strerror(errno)); | |
128 | ||
129 | if (IS_RIPNG_DEBUG_EVENT) | |
130 | zlog_debug( | |
131 | "RIPng %s leave from all-rip-routers multicast group", | |
132 | ifp->name); | |
133 | ||
134 | if (ret < 0) | |
135 | return -1; | |
136 | } | |
a94434b6 | 137 | |
d62a17ae | 138 | return 0; |
a94434b6 | 139 | } |
140 | ||
141 | /* How many link local IPv6 address could be used on the interface ? */ | |
d62a17ae | 142 | static int ripng_if_ipv6_lladdress_check(struct interface *ifp) |
a94434b6 | 143 | { |
d62a17ae | 144 | struct listnode *nn; |
145 | struct connected *connected; | |
146 | int count = 0; | |
a94434b6 | 147 | |
d62a17ae | 148 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, nn, connected)) { |
149 | struct prefix *p; | |
150 | p = connected->address; | |
718e3744 | 151 | |
d62a17ae | 152 | if ((p->family == AF_INET6) |
153 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
154 | count++; | |
155 | } | |
718e3744 | 156 | |
d62a17ae | 157 | return count; |
718e3744 | 158 | } |
159 | ||
d62a17ae | 160 | static int ripng_if_down(struct interface *ifp) |
718e3744 | 161 | { |
fe08ba7e | 162 | struct agg_node *rp; |
d62a17ae | 163 | struct ripng_info *rinfo; |
164 | struct ripng_interface *ri; | |
165 | struct list *list = NULL; | |
166 | struct listnode *listnode = NULL, *nextnode = NULL; | |
167 | ||
168 | if (ripng) | |
fe08ba7e DS |
169 | for (rp = agg_route_top(ripng->table); rp; |
170 | rp = agg_route_next(rp)) | |
d62a17ae | 171 | if ((list = rp->info) != NULL) |
172 | for (ALL_LIST_ELEMENTS(list, listnode, nextnode, | |
173 | rinfo)) | |
174 | if (rinfo->ifindex == ifp->ifindex) | |
175 | ripng_ecmp_delete(rinfo); | |
176 | ||
177 | ri = ifp->info; | |
178 | ||
179 | if (ri->running) { | |
180 | if (IS_RIPNG_DEBUG_EVENT) | |
181 | zlog_debug("turn off %s", ifp->name); | |
182 | ||
183 | /* Leave from multicast group. */ | |
184 | ripng_multicast_leave(ifp); | |
185 | ||
186 | ri->running = 0; | |
187 | } | |
188 | ||
189 | return 0; | |
718e3744 | 190 | } |
191 | ||
192 | /* Inteface link up message processing. */ | |
d62a17ae | 193 | int ripng_interface_up(int command, struct zclient *zclient, |
194 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 195 | { |
d62a17ae | 196 | struct stream *s; |
197 | struct interface *ifp; | |
718e3744 | 198 | |
d62a17ae | 199 | /* zebra_interface_state_read() updates interface structure in iflist. |
200 | */ | |
201 | s = zclient->ibuf; | |
202 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 203 | |
d62a17ae | 204 | if (ifp == NULL) |
205 | return 0; | |
718e3744 | 206 | |
d62a17ae | 207 | if (IS_RIPNG_DEBUG_ZEBRA) |
208 | zlog_debug( | |
209 | "interface up %s index %d flags %llx metric %d mtu %d", | |
210 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
211 | ifp->metric, ifp->mtu6); | |
718e3744 | 212 | |
d62a17ae | 213 | /* Check if this interface is RIPng enabled or not. */ |
214 | ripng_enable_apply(ifp); | |
718e3744 | 215 | |
d62a17ae | 216 | /* Check for a passive interface. */ |
217 | ripng_passive_interface_apply(ifp); | |
718e3744 | 218 | |
d62a17ae | 219 | /* Apply distribute list to the all interface. */ |
220 | ripng_distribute_update_interface(ifp); | |
718e3744 | 221 | |
d62a17ae | 222 | return 0; |
718e3744 | 223 | } |
224 | ||
225 | /* Inteface link down message processing. */ | |
d62a17ae | 226 | int ripng_interface_down(int command, struct zclient *zclient, |
227 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 228 | { |
d62a17ae | 229 | struct stream *s; |
230 | struct interface *ifp; | |
718e3744 | 231 | |
d62a17ae | 232 | /* zebra_interface_state_read() updates interface structure in iflist. |
233 | */ | |
234 | s = zclient->ibuf; | |
235 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 236 | |
d62a17ae | 237 | if (ifp == NULL) |
238 | return 0; | |
718e3744 | 239 | |
d62a17ae | 240 | ripng_if_down(ifp); |
718e3744 | 241 | |
d62a17ae | 242 | if (IS_RIPNG_DEBUG_ZEBRA) |
243 | zlog_debug( | |
244 | "interface down %s index %d flags %#llx metric %d mtu %d", | |
245 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
246 | ifp->metric, ifp->mtu6); | |
718e3744 | 247 | |
d62a17ae | 248 | return 0; |
718e3744 | 249 | } |
250 | ||
251 | /* Inteface addition message from zebra. */ | |
d62a17ae | 252 | int ripng_interface_add(int command, struct zclient *zclient, |
253 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 254 | { |
d62a17ae | 255 | struct interface *ifp; |
718e3744 | 256 | |
d62a17ae | 257 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
718e3744 | 258 | |
d62a17ae | 259 | if (IS_RIPNG_DEBUG_ZEBRA) |
260 | zlog_debug( | |
261 | "RIPng interface add %s index %d flags %#llx metric %d mtu %d", | |
262 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
263 | ifp->metric, ifp->mtu6); | |
718e3744 | 264 | |
d62a17ae | 265 | /* Check is this interface is RIP enabled or not.*/ |
266 | ripng_enable_apply(ifp); | |
718e3744 | 267 | |
d62a17ae | 268 | /* Apply distribute list to the interface. */ |
269 | ripng_distribute_update_interface(ifp); | |
718e3744 | 270 | |
d62a17ae | 271 | /* Check interface routemap. */ |
272 | ripng_if_rmap_update_interface(ifp); | |
718e3744 | 273 | |
d62a17ae | 274 | return 0; |
718e3744 | 275 | } |
276 | ||
d62a17ae | 277 | int ripng_interface_delete(int command, struct zclient *zclient, |
278 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 279 | { |
d62a17ae | 280 | struct interface *ifp; |
281 | struct stream *s; | |
a94434b6 | 282 | |
d62a17ae | 283 | s = zclient->ibuf; |
284 | /* zebra_interface_state_read() updates interface structure in iflist | |
285 | */ | |
286 | ifp = zebra_interface_state_read(s, vrf_id); | |
a94434b6 | 287 | |
d62a17ae | 288 | if (ifp == NULL) |
289 | return 0; | |
a94434b6 | 290 | |
d62a17ae | 291 | if (if_is_up(ifp)) { |
292 | ripng_if_down(ifp); | |
293 | } | |
a94434b6 | 294 | |
d62a17ae | 295 | zlog_info("interface delete %s index %d flags %#llx metric %d mtu %d", |
296 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
297 | ifp->metric, ifp->mtu6); | |
a94434b6 | 298 | |
d62a17ae | 299 | /* To support pseudo interface do not free interface structure. */ |
300 | /* if_delete(ifp); */ | |
ff880b78 | 301 | if_set_index(ifp, IFINDEX_INTERNAL); |
a94434b6 | 302 | |
d62a17ae | 303 | return 0; |
718e3744 | 304 | } |
305 | ||
d62a17ae | 306 | void ripng_interface_clean(void) |
a94434b6 | 307 | { |
f4e14fdb | 308 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 309 | struct interface *ifp; |
310 | struct ripng_interface *ri; | |
a94434b6 | 311 | |
451fda4f | 312 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 313 | ri = ifp->info; |
a94434b6 | 314 | |
d62a17ae | 315 | ri->enable_network = 0; |
316 | ri->enable_interface = 0; | |
317 | ri->running = 0; | |
a94434b6 | 318 | |
d62a17ae | 319 | if (ri->t_wakeup) { |
320 | thread_cancel(ri->t_wakeup); | |
321 | ri->t_wakeup = NULL; | |
322 | } | |
323 | } | |
324 | } | |
a94434b6 | 325 | |
d62a17ae | 326 | void ripng_interface_reset(void) |
327 | { | |
f4e14fdb | 328 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 329 | struct interface *ifp; |
330 | struct ripng_interface *ri; | |
a94434b6 | 331 | |
451fda4f | 332 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 333 | ri = ifp->info; |
a94434b6 | 334 | |
d62a17ae | 335 | ri->enable_network = 0; |
336 | ri->enable_interface = 0; | |
337 | ri->running = 0; | |
a94434b6 | 338 | |
d62a17ae | 339 | ri->split_horizon = RIPNG_NO_SPLIT_HORIZON; |
340 | ri->split_horizon_default = RIPNG_NO_SPLIT_HORIZON; | |
a94434b6 | 341 | |
d62a17ae | 342 | ri->list[RIPNG_FILTER_IN] = NULL; |
343 | ri->list[RIPNG_FILTER_OUT] = NULL; | |
a94434b6 | 344 | |
d62a17ae | 345 | ri->prefix[RIPNG_FILTER_IN] = NULL; |
346 | ri->prefix[RIPNG_FILTER_OUT] = NULL; | |
a94434b6 | 347 | |
d62a17ae | 348 | if (ri->t_wakeup) { |
349 | thread_cancel(ri->t_wakeup); | |
350 | ri->t_wakeup = NULL; | |
351 | } | |
a94434b6 | 352 | |
d62a17ae | 353 | ri->passive = 0; |
354 | } | |
355 | } | |
a94434b6 | 356 | |
d62a17ae | 357 | static void ripng_apply_address_add(struct connected *ifc) |
358 | { | |
359 | struct prefix_ipv6 address; | |
360 | struct prefix *p; | |
361 | ||
362 | if (!ripng) | |
363 | return; | |
364 | ||
365 | if (!if_is_up(ifc->ifp)) | |
366 | return; | |
367 | ||
368 | p = ifc->address; | |
369 | ||
370 | memset(&address, 0, sizeof(address)); | |
371 | address.family = p->family; | |
372 | address.prefix = p->u.prefix6; | |
373 | address.prefixlen = p->prefixlen; | |
374 | apply_mask_ipv6(&address); | |
375 | ||
376 | /* Check if this interface is RIP enabled or not | |
377 | or Check if this address's prefix is RIP enabled */ | |
378 | if ((ripng_enable_if_lookup(ifc->ifp->name) >= 0) | |
379 | || (ripng_enable_network_lookup2(ifc) >= 0)) | |
380 | ripng_redistribute_add(ZEBRA_ROUTE_CONNECT, | |
381 | RIPNG_ROUTE_INTERFACE, &address, | |
382 | ifc->ifp->ifindex, NULL, 0); | |
a94434b6 | 383 | } |
384 | ||
d62a17ae | 385 | int ripng_interface_address_add(int command, struct zclient *zclient, |
386 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 387 | { |
d62a17ae | 388 | struct connected *c; |
389 | struct prefix *p; | |
718e3744 | 390 | |
d62a17ae | 391 | c = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, |
392 | zclient->ibuf, vrf_id); | |
718e3744 | 393 | |
d62a17ae | 394 | if (c == NULL) |
395 | return 0; | |
718e3744 | 396 | |
d62a17ae | 397 | p = c->address; |
718e3744 | 398 | |
d62a17ae | 399 | if (p->family == AF_INET6) { |
400 | struct ripng_interface *ri = c->ifp->info; | |
a94434b6 | 401 | |
d62a17ae | 402 | if (IS_RIPNG_DEBUG_ZEBRA) |
403 | zlog_debug("RIPng connected address %s/%d add", | |
404 | inet6_ntoa(p->u.prefix6), p->prefixlen); | |
a94434b6 | 405 | |
d62a17ae | 406 | /* Check is this prefix needs to be redistributed. */ |
407 | ripng_apply_address_add(c); | |
a94434b6 | 408 | |
d62a17ae | 409 | /* Let's try once again whether the interface could be activated |
410 | */ | |
411 | if (!ri->running) { | |
412 | /* Check if this interface is RIP enabled or not.*/ | |
413 | ripng_enable_apply(c->ifp); | |
a94434b6 | 414 | |
d62a17ae | 415 | /* Apply distribute list to the interface. */ |
416 | ripng_distribute_update_interface(c->ifp); | |
718e3744 | 417 | |
d62a17ae | 418 | /* Check interface routemap. */ |
419 | ripng_if_rmap_update_interface(c->ifp); | |
420 | } | |
421 | } | |
422 | ||
423 | return 0; | |
718e3744 | 424 | } |
425 | ||
d62a17ae | 426 | static void ripng_apply_address_del(struct connected *ifc) |
427 | { | |
428 | struct prefix_ipv6 address; | |
429 | struct prefix *p; | |
a94434b6 | 430 | |
d62a17ae | 431 | if (!ripng) |
432 | return; | |
a94434b6 | 433 | |
d62a17ae | 434 | if (!if_is_up(ifc->ifp)) |
435 | return; | |
a94434b6 | 436 | |
d62a17ae | 437 | p = ifc->address; |
a94434b6 | 438 | |
d62a17ae | 439 | memset(&address, 0, sizeof(address)); |
440 | address.family = p->family; | |
441 | address.prefix = p->u.prefix6; | |
442 | address.prefixlen = p->prefixlen; | |
443 | apply_mask_ipv6(&address); | |
a94434b6 | 444 | |
d62a17ae | 445 | ripng_redistribute_delete(ZEBRA_ROUTE_CONNECT, RIPNG_ROUTE_INTERFACE, |
446 | &address, ifc->ifp->ifindex); | |
a94434b6 | 447 | } |
448 | ||
d62a17ae | 449 | int ripng_interface_address_delete(int command, struct zclient *zclient, |
450 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 451 | { |
d62a17ae | 452 | struct connected *ifc; |
453 | struct prefix *p; | |
454 | char buf[INET6_ADDRSTRLEN]; | |
455 | ||
456 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, | |
457 | zclient->ibuf, vrf_id); | |
458 | ||
459 | if (ifc) { | |
460 | p = ifc->address; | |
461 | ||
462 | if (p->family == AF_INET6) { | |
463 | if (IS_RIPNG_DEBUG_ZEBRA) | |
464 | zlog_debug( | |
465 | "RIPng connected address %s/%d delete", | |
466 | inet_ntop(AF_INET6, &p->u.prefix6, buf, | |
467 | INET6_ADDRSTRLEN), | |
468 | p->prefixlen); | |
469 | ||
470 | /* Check wether this prefix needs to be removed. */ | |
471 | ripng_apply_address_del(ifc); | |
472 | } | |
473 | connected_free(ifc); | |
718e3744 | 474 | } |
718e3744 | 475 | |
d62a17ae | 476 | return 0; |
718e3744 | 477 | } |
6b0655a2 | 478 | |
718e3744 | 479 | /* RIPng enable interface vector. */ |
480 | vector ripng_enable_if; | |
481 | ||
482 | /* RIPng enable network table. */ | |
fe08ba7e | 483 | struct agg_table *ripng_enable_network; |
718e3744 | 484 | |
485 | /* Lookup RIPng enable network. */ | |
a94434b6 | 486 | /* Check wether the interface has at least a connected prefix that |
487 | * is within the ripng_enable_network table. */ | |
d62a17ae | 488 | static int ripng_enable_network_lookup_if(struct interface *ifp) |
718e3744 | 489 | { |
d62a17ae | 490 | struct listnode *node; |
491 | struct connected *connected; | |
492 | struct prefix_ipv6 address; | |
493 | ||
494 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
495 | struct prefix *p; | |
fe08ba7e | 496 | struct agg_node *n; |
d62a17ae | 497 | |
498 | p = connected->address; | |
499 | ||
500 | if (p->family == AF_INET6) { | |
501 | address.family = AF_INET6; | |
502 | address.prefix = p->u.prefix6; | |
503 | address.prefixlen = IPV6_MAX_BITLEN; | |
504 | ||
fe08ba7e DS |
505 | n = agg_node_match(ripng_enable_network, |
506 | (struct prefix *)&address); | |
ee6f7757 | 507 | if (n) { |
fe08ba7e | 508 | agg_unlock_node(n); |
d62a17ae | 509 | return 1; |
510 | } | |
511 | } | |
512 | } | |
513 | return -1; | |
718e3744 | 514 | } |
515 | ||
a94434b6 | 516 | /* Check wether connected is within the ripng_enable_network table. */ |
d62a17ae | 517 | static int ripng_enable_network_lookup2(struct connected *connected) |
a94434b6 | 518 | { |
d62a17ae | 519 | struct prefix_ipv6 address; |
520 | struct prefix *p; | |
a94434b6 | 521 | |
d62a17ae | 522 | p = connected->address; |
a94434b6 | 523 | |
d62a17ae | 524 | if (p->family == AF_INET6) { |
fe08ba7e | 525 | struct agg_node *node; |
a94434b6 | 526 | |
d62a17ae | 527 | address.family = p->family; |
528 | address.prefix = p->u.prefix6; | |
529 | address.prefixlen = IPV6_MAX_BITLEN; | |
a94434b6 | 530 | |
d62a17ae | 531 | /* LPM on p->family, p->u.prefix6/IPV6_MAX_BITLEN within |
532 | * ripng_enable_network */ | |
fe08ba7e DS |
533 | node = agg_node_match(ripng_enable_network, |
534 | (struct prefix *)&address); | |
a94434b6 | 535 | |
d62a17ae | 536 | if (node) { |
fe08ba7e | 537 | agg_unlock_node(node); |
d62a17ae | 538 | return 1; |
539 | } | |
540 | } | |
a94434b6 | 541 | |
d62a17ae | 542 | return -1; |
a94434b6 | 543 | } |
544 | ||
718e3744 | 545 | /* Add RIPng enable network. */ |
d62a17ae | 546 | static int ripng_enable_network_add(struct prefix *p) |
718e3744 | 547 | { |
fe08ba7e | 548 | struct agg_node *node; |
718e3744 | 549 | |
fe08ba7e | 550 | node = agg_node_get(ripng_enable_network, p); |
718e3744 | 551 | |
d62a17ae | 552 | if (node->info) { |
fe08ba7e | 553 | agg_unlock_node(node); |
d62a17ae | 554 | return -1; |
555 | } else | |
556 | node->info = (void *)1; | |
718e3744 | 557 | |
d62a17ae | 558 | /* XXX: One should find a better solution than a generic one */ |
559 | ripng_enable_apply_all(); | |
a94434b6 | 560 | |
d62a17ae | 561 | return 1; |
718e3744 | 562 | } |
563 | ||
564 | /* Delete RIPng enable network. */ | |
d62a17ae | 565 | static int ripng_enable_network_delete(struct prefix *p) |
718e3744 | 566 | { |
fe08ba7e | 567 | struct agg_node *node; |
718e3744 | 568 | |
fe08ba7e | 569 | node = agg_node_lookup(ripng_enable_network, p); |
d62a17ae | 570 | if (node) { |
571 | node->info = NULL; | |
718e3744 | 572 | |
d62a17ae | 573 | /* Unlock info lock. */ |
fe08ba7e | 574 | agg_unlock_node(node); |
718e3744 | 575 | |
d62a17ae | 576 | /* Unlock lookup lock. */ |
fe08ba7e | 577 | agg_unlock_node(node); |
718e3744 | 578 | |
d62a17ae | 579 | return 1; |
580 | } | |
581 | return -1; | |
718e3744 | 582 | } |
583 | ||
584 | /* Lookup function. */ | |
d62a17ae | 585 | static int ripng_enable_if_lookup(const char *ifname) |
718e3744 | 586 | { |
d62a17ae | 587 | unsigned int i; |
588 | char *str; | |
589 | ||
590 | for (i = 0; i < vector_active(ripng_enable_if); i++) | |
591 | if ((str = vector_slot(ripng_enable_if, i)) != NULL) | |
592 | if (strcmp(str, ifname) == 0) | |
593 | return i; | |
594 | return -1; | |
718e3744 | 595 | } |
596 | ||
597 | /* Add interface to ripng_enable_if. */ | |
d62a17ae | 598 | static int ripng_enable_if_add(const char *ifname) |
718e3744 | 599 | { |
d62a17ae | 600 | int ret; |
718e3744 | 601 | |
d62a17ae | 602 | ret = ripng_enable_if_lookup(ifname); |
603 | if (ret >= 0) | |
604 | return -1; | |
718e3744 | 605 | |
d62a17ae | 606 | vector_set(ripng_enable_if, strdup(ifname)); |
718e3744 | 607 | |
d62a17ae | 608 | ripng_enable_apply_all(); |
a94434b6 | 609 | |
d62a17ae | 610 | return 1; |
718e3744 | 611 | } |
612 | ||
613 | /* Delete interface from ripng_enable_if. */ | |
d62a17ae | 614 | static int ripng_enable_if_delete(const char *ifname) |
718e3744 | 615 | { |
d62a17ae | 616 | int index; |
617 | char *str; | |
718e3744 | 618 | |
d62a17ae | 619 | index = ripng_enable_if_lookup(ifname); |
620 | if (index < 0) | |
621 | return -1; | |
718e3744 | 622 | |
d62a17ae | 623 | str = vector_slot(ripng_enable_if, index); |
624 | free(str); | |
625 | vector_unset(ripng_enable_if, index); | |
718e3744 | 626 | |
d62a17ae | 627 | ripng_enable_apply_all(); |
a94434b6 | 628 | |
d62a17ae | 629 | return 1; |
718e3744 | 630 | } |
631 | ||
632 | /* Wake up interface. */ | |
d62a17ae | 633 | static int ripng_interface_wakeup(struct thread *t) |
718e3744 | 634 | { |
d62a17ae | 635 | struct interface *ifp; |
636 | struct ripng_interface *ri; | |
718e3744 | 637 | |
d62a17ae | 638 | /* Get interface. */ |
639 | ifp = THREAD_ARG(t); | |
718e3744 | 640 | |
d62a17ae | 641 | ri = ifp->info; |
642 | ri->t_wakeup = NULL; | |
718e3744 | 643 | |
d62a17ae | 644 | /* Join to multicast group. */ |
645 | if (ripng_multicast_join(ifp) < 0) { | |
450971aa | 646 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
647 | "multicast join failed, interface %s not running", |
648 | ifp->name); | |
d62a17ae | 649 | return 0; |
650 | } | |
651 | ||
652 | /* Set running flag. */ | |
653 | ri->running = 1; | |
718e3744 | 654 | |
d62a17ae | 655 | /* Send RIP request to the interface. */ |
656 | ripng_request(ifp); | |
718e3744 | 657 | |
d62a17ae | 658 | return 0; |
718e3744 | 659 | } |
660 | ||
d62a17ae | 661 | static void ripng_connect_set(struct interface *ifp, int set) |
a94434b6 | 662 | { |
d62a17ae | 663 | struct listnode *node, *nnode; |
664 | struct connected *connected; | |
665 | struct prefix_ipv6 address; | |
666 | ||
667 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
668 | struct prefix *p; | |
669 | p = connected->address; | |
670 | ||
671 | if (p->family != AF_INET6) | |
672 | continue; | |
673 | ||
674 | address.family = AF_INET6; | |
675 | address.prefix = p->u.prefix6; | |
676 | address.prefixlen = p->prefixlen; | |
677 | apply_mask_ipv6(&address); | |
678 | ||
679 | if (set) { | |
680 | /* Check once more wether this prefix is within a | |
681 | * "network IF_OR_PREF" one */ | |
682 | if ((ripng_enable_if_lookup(connected->ifp->name) >= 0) | |
683 | || (ripng_enable_network_lookup2(connected) >= 0)) | |
684 | ripng_redistribute_add( | |
685 | ZEBRA_ROUTE_CONNECT, | |
686 | RIPNG_ROUTE_INTERFACE, &address, | |
687 | connected->ifp->ifindex, NULL, 0); | |
688 | } else { | |
689 | ripng_redistribute_delete( | |
690 | ZEBRA_ROUTE_CONNECT, RIPNG_ROUTE_INTERFACE, | |
691 | &address, connected->ifp->ifindex); | |
692 | if (ripng_redistribute_check(ZEBRA_ROUTE_CONNECT)) | |
693 | ripng_redistribute_add( | |
694 | ZEBRA_ROUTE_CONNECT, | |
695 | RIPNG_ROUTE_REDISTRIBUTE, &address, | |
696 | connected->ifp->ifindex, NULL, 0); | |
697 | } | |
698 | } | |
a94434b6 | 699 | } |
700 | ||
718e3744 | 701 | /* Check RIPng is enabed on this interface. */ |
d62a17ae | 702 | void ripng_enable_apply(struct interface *ifp) |
718e3744 | 703 | { |
d62a17ae | 704 | int ret; |
705 | struct ripng_interface *ri = NULL; | |
706 | ||
707 | /* Check interface. */ | |
708 | if (!if_is_up(ifp)) | |
709 | return; | |
710 | ||
711 | ri = ifp->info; | |
712 | ||
713 | /* Is this interface a candidate for RIPng ? */ | |
714 | ret = ripng_enable_network_lookup_if(ifp); | |
715 | ||
716 | /* If the interface is matched. */ | |
717 | if (ret > 0) | |
718 | ri->enable_network = 1; | |
719 | else | |
720 | ri->enable_network = 0; | |
721 | ||
722 | /* Check interface name configuration. */ | |
723 | ret = ripng_enable_if_lookup(ifp->name); | |
724 | if (ret >= 0) | |
725 | ri->enable_interface = 1; | |
726 | else | |
727 | ri->enable_interface = 0; | |
728 | ||
729 | /* any candidate interface MUST have a link-local IPv6 address */ | |
730 | if ((!ripng_if_ipv6_lladdress_check(ifp)) | |
731 | && (ri->enable_network || ri->enable_interface)) { | |
732 | ri->enable_network = 0; | |
733 | ri->enable_interface = 0; | |
734 | zlog_warn("Interface %s does not have any link-local address", | |
735 | ifp->name); | |
736 | } | |
737 | ||
738 | /* Update running status of the interface. */ | |
739 | if (ri->enable_network || ri->enable_interface) { | |
740 | zlog_info("RIPng INTERFACE ON %s", ifp->name); | |
741 | ||
742 | /* Add interface wake up thread. */ | |
743 | thread_add_timer(master, ripng_interface_wakeup, ifp, 1, | |
744 | &ri->t_wakeup); | |
745 | ||
746 | ripng_connect_set(ifp, 1); | |
747 | } else { | |
748 | if (ri->running) { | |
749 | /* Might as well clean up the route table as well | |
750 | * ripng_if_down sets to 0 ri->running, and displays | |
751 | *"turn off %s" | |
752 | **/ | |
753 | ripng_if_down(ifp); | |
754 | ||
755 | ripng_connect_set(ifp, 0); | |
756 | } | |
718e3744 | 757 | } |
718e3744 | 758 | } |
759 | ||
760 | /* Set distribute list to all interfaces. */ | |
d62a17ae | 761 | static void ripng_enable_apply_all(void) |
718e3744 | 762 | { |
f4e14fdb | 763 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 764 | struct interface *ifp; |
718e3744 | 765 | |
451fda4f | 766 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 767 | ripng_enable_apply(ifp); |
718e3744 | 768 | } |
6b0655a2 | 769 | |
a94434b6 | 770 | /* Clear all network and neighbor configuration */ |
d62a17ae | 771 | void ripng_clean_network() |
a94434b6 | 772 | { |
d62a17ae | 773 | unsigned int i; |
774 | char *str; | |
fe08ba7e | 775 | struct agg_node *rn; |
d62a17ae | 776 | |
777 | /* ripng_enable_network */ | |
fe08ba7e DS |
778 | for (rn = agg_route_top(ripng_enable_network); rn; |
779 | rn = agg_route_next(rn)) | |
d62a17ae | 780 | if (rn->info) { |
781 | rn->info = NULL; | |
fe08ba7e | 782 | agg_unlock_node(rn); |
d62a17ae | 783 | } |
784 | ||
785 | /* ripng_enable_if */ | |
786 | for (i = 0; i < vector_active(ripng_enable_if); i++) | |
787 | if ((str = vector_slot(ripng_enable_if, i)) != NULL) { | |
788 | free(str); | |
789 | vector_slot(ripng_enable_if, i) = NULL; | |
790 | } | |
a94434b6 | 791 | } |
6b0655a2 | 792 | |
718e3744 | 793 | /* Vector to store passive-interface name. */ |
794 | vector Vripng_passive_interface; | |
795 | ||
796 | /* Utility function for looking up passive interface settings. */ | |
d62a17ae | 797 | static int ripng_passive_interface_lookup(const char *ifname) |
718e3744 | 798 | { |
d62a17ae | 799 | unsigned int i; |
800 | char *str; | |
801 | ||
802 | for (i = 0; i < vector_active(Vripng_passive_interface); i++) | |
803 | if ((str = vector_slot(Vripng_passive_interface, i)) != NULL) | |
804 | if (strcmp(str, ifname) == 0) | |
805 | return i; | |
806 | return -1; | |
718e3744 | 807 | } |
808 | ||
d62a17ae | 809 | void ripng_passive_interface_apply(struct interface *ifp) |
718e3744 | 810 | { |
d62a17ae | 811 | int ret; |
812 | struct ripng_interface *ri; | |
718e3744 | 813 | |
d62a17ae | 814 | ri = ifp->info; |
718e3744 | 815 | |
d62a17ae | 816 | ret = ripng_passive_interface_lookup(ifp->name); |
817 | if (ret < 0) | |
818 | ri->passive = 0; | |
819 | else | |
820 | ri->passive = 1; | |
718e3744 | 821 | } |
822 | ||
d62a17ae | 823 | static void ripng_passive_interface_apply_all(void) |
718e3744 | 824 | { |
f4e14fdb | 825 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 826 | struct interface *ifp; |
718e3744 | 827 | |
451fda4f | 828 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 829 | ripng_passive_interface_apply(ifp); |
718e3744 | 830 | } |
831 | ||
832 | /* Passive interface. */ | |
d62a17ae | 833 | static int ripng_passive_interface_set(struct vty *vty, const char *ifname) |
718e3744 | 834 | { |
d62a17ae | 835 | if (ripng_passive_interface_lookup(ifname) >= 0) |
836 | return CMD_WARNING_CONFIG_FAILED; | |
718e3744 | 837 | |
d62a17ae | 838 | vector_set(Vripng_passive_interface, strdup(ifname)); |
718e3744 | 839 | |
d62a17ae | 840 | ripng_passive_interface_apply_all(); |
718e3744 | 841 | |
d62a17ae | 842 | return CMD_SUCCESS; |
718e3744 | 843 | } |
844 | ||
d62a17ae | 845 | static int ripng_passive_interface_unset(struct vty *vty, const char *ifname) |
718e3744 | 846 | { |
d62a17ae | 847 | int i; |
848 | char *str; | |
718e3744 | 849 | |
d62a17ae | 850 | i = ripng_passive_interface_lookup(ifname); |
851 | if (i < 0) | |
852 | return CMD_WARNING_CONFIG_FAILED; | |
718e3744 | 853 | |
d62a17ae | 854 | str = vector_slot(Vripng_passive_interface, i); |
855 | free(str); | |
856 | vector_unset(Vripng_passive_interface, i); | |
718e3744 | 857 | |
d62a17ae | 858 | ripng_passive_interface_apply_all(); |
718e3744 | 859 | |
d62a17ae | 860 | return CMD_SUCCESS; |
718e3744 | 861 | } |
862 | ||
863 | /* Free all configured RIP passive-interface settings. */ | |
d62a17ae | 864 | void ripng_passive_interface_clean(void) |
718e3744 | 865 | { |
d62a17ae | 866 | unsigned int i; |
867 | char *str; | |
868 | ||
869 | for (i = 0; i < vector_active(Vripng_passive_interface); i++) | |
870 | if ((str = vector_slot(Vripng_passive_interface, i)) != NULL) { | |
871 | free(str); | |
872 | vector_slot(Vripng_passive_interface, i) = NULL; | |
873 | } | |
874 | ripng_passive_interface_apply_all(); | |
718e3744 | 875 | } |
876 | ||
877 | /* Write RIPng enable network and interface to the vty. */ | |
d62a17ae | 878 | int ripng_network_write(struct vty *vty, int config_mode) |
718e3744 | 879 | { |
d62a17ae | 880 | unsigned int i; |
881 | const char *ifname; | |
fe08ba7e | 882 | struct agg_node *node; |
d62a17ae | 883 | char buf[BUFSIZ]; |
884 | ||
885 | /* Write enable network. */ | |
fe08ba7e DS |
886 | for (node = agg_route_top(ripng_enable_network); node; |
887 | node = agg_route_next(node)) | |
d62a17ae | 888 | if (node->info) { |
889 | struct prefix *p = &node->p; | |
890 | vty_out(vty, "%s%s/%d\n", | |
891 | config_mode ? " network " : " ", | |
892 | inet_ntop(p->family, &p->u.prefix, buf, BUFSIZ), | |
893 | p->prefixlen); | |
894 | } | |
895 | ||
896 | /* Write enable interface. */ | |
897 | for (i = 0; i < vector_active(ripng_enable_if); i++) | |
898 | if ((ifname = vector_slot(ripng_enable_if, i)) != NULL) | |
899 | vty_out(vty, "%s%s\n", | |
900 | config_mode ? " network " : " ", ifname); | |
901 | ||
902 | /* Write passive interface. */ | |
903 | if (config_mode) | |
904 | for (i = 0; i < vector_active(Vripng_passive_interface); i++) | |
905 | if ((ifname = vector_slot(Vripng_passive_interface, i)) | |
906 | != NULL) | |
907 | vty_out(vty, " passive-interface %s\n", ifname); | |
908 | ||
909 | return 0; | |
718e3744 | 910 | } |
911 | ||
912 | /* RIPng enable on specified interface or matched network. */ | |
913 | DEFUN (ripng_network, | |
914 | ripng_network_cmd, | |
915 | "network IF_OR_ADDR", | |
916 | "RIPng enable on specified interface or network.\n" | |
d911a12a | 917 | "Interface or address\n") |
718e3744 | 918 | { |
d62a17ae | 919 | int idx_if_or_addr = 1; |
920 | int ret; | |
921 | struct prefix p; | |
922 | ||
923 | ret = str2prefix(argv[idx_if_or_addr]->arg, &p); | |
924 | ||
925 | /* Given string is IPv6 network or interface name. */ | |
926 | if (ret) | |
927 | ret = ripng_enable_network_add(&p); | |
928 | else | |
929 | ret = ripng_enable_if_add(argv[idx_if_or_addr]->arg); | |
930 | ||
931 | if (ret < 0) { | |
932 | vty_out(vty, "There is same network configuration %s\n", | |
933 | argv[idx_if_or_addr]->arg); | |
934 | return CMD_WARNING_CONFIG_FAILED; | |
935 | } | |
936 | ||
937 | return CMD_SUCCESS; | |
718e3744 | 938 | } |
939 | ||
940 | /* RIPng enable on specified interface or matched network. */ | |
941 | DEFUN (no_ripng_network, | |
942 | no_ripng_network_cmd, | |
943 | "no network IF_OR_ADDR", | |
944 | NO_STR | |
945 | "RIPng enable on specified interface or network.\n" | |
d911a12a | 946 | "Interface or address\n") |
718e3744 | 947 | { |
d62a17ae | 948 | int idx_if_or_addr = 2; |
949 | int ret; | |
950 | struct prefix p; | |
951 | ||
952 | ret = str2prefix(argv[idx_if_or_addr]->arg, &p); | |
953 | ||
954 | /* Given string is interface name. */ | |
955 | if (ret) | |
956 | ret = ripng_enable_network_delete(&p); | |
957 | else | |
958 | ret = ripng_enable_if_delete(argv[idx_if_or_addr]->arg); | |
959 | ||
960 | if (ret < 0) { | |
961 | vty_out(vty, "can't find network %s\n", | |
962 | argv[idx_if_or_addr]->arg); | |
963 | return CMD_WARNING_CONFIG_FAILED; | |
964 | } | |
965 | ||
966 | return CMD_SUCCESS; | |
a94434b6 | 967 | } |
968 | ||
969 | DEFUN (ipv6_ripng_split_horizon, | |
970 | ipv6_ripng_split_horizon_cmd, | |
971 | "ipv6 ripng split-horizon", | |
972 | IPV6_STR | |
973 | "Routing Information Protocol\n" | |
974 | "Perform split horizon\n") | |
975 | { | |
d62a17ae | 976 | VTY_DECLVAR_CONTEXT(interface, ifp); |
977 | struct ripng_interface *ri; | |
a94434b6 | 978 | |
d62a17ae | 979 | ri = ifp->info; |
a94434b6 | 980 | |
d62a17ae | 981 | ri->split_horizon = RIPNG_SPLIT_HORIZON; |
982 | return CMD_SUCCESS; | |
a94434b6 | 983 | } |
984 | ||
985 | DEFUN (ipv6_ripng_split_horizon_poisoned_reverse, | |
986 | ipv6_ripng_split_horizon_poisoned_reverse_cmd, | |
987 | "ipv6 ripng split-horizon poisoned-reverse", | |
988 | IPV6_STR | |
989 | "Routing Information Protocol\n" | |
990 | "Perform split horizon\n" | |
991 | "With poisoned-reverse\n") | |
992 | { | |
d62a17ae | 993 | VTY_DECLVAR_CONTEXT(interface, ifp); |
994 | struct ripng_interface *ri; | |
a94434b6 | 995 | |
d62a17ae | 996 | ri = ifp->info; |
a94434b6 | 997 | |
d62a17ae | 998 | ri->split_horizon = RIPNG_SPLIT_HORIZON_POISONED_REVERSE; |
999 | return CMD_SUCCESS; | |
a94434b6 | 1000 | } |
718e3744 | 1001 | |
a94434b6 | 1002 | DEFUN (no_ipv6_ripng_split_horizon, |
1003 | no_ipv6_ripng_split_horizon_cmd, | |
481af2ed | 1004 | "no ipv6 ripng split-horizon [poisoned-reverse]", |
a94434b6 | 1005 | NO_STR |
1006 | IPV6_STR | |
1007 | "Routing Information Protocol\n" | |
481af2ed QY |
1008 | "Perform split horizon\n" |
1009 | "With poisoned-reverse\n") | |
a94434b6 | 1010 | { |
d62a17ae | 1011 | VTY_DECLVAR_CONTEXT(interface, ifp); |
1012 | struct ripng_interface *ri; | |
a94434b6 | 1013 | |
d62a17ae | 1014 | ri = ifp->info; |
a94434b6 | 1015 | |
d62a17ae | 1016 | ri->split_horizon = RIPNG_NO_SPLIT_HORIZON; |
1017 | return CMD_SUCCESS; | |
718e3744 | 1018 | } |
1019 | ||
1020 | DEFUN (ripng_passive_interface, | |
1021 | ripng_passive_interface_cmd, | |
1022 | "passive-interface IFNAME", | |
1023 | "Suppress routing updates on an interface\n" | |
1024 | "Interface name\n") | |
1025 | { | |
d62a17ae | 1026 | int idx_ifname = 1; |
1027 | return ripng_passive_interface_set(vty, argv[idx_ifname]->arg); | |
718e3744 | 1028 | } |
1029 | ||
1030 | DEFUN (no_ripng_passive_interface, | |
1031 | no_ripng_passive_interface_cmd, | |
1032 | "no passive-interface IFNAME", | |
1033 | NO_STR | |
1034 | "Suppress routing updates on an interface\n" | |
1035 | "Interface name\n") | |
1036 | { | |
d62a17ae | 1037 | int idx_ifname = 2; |
1038 | return ripng_passive_interface_unset(vty, argv[idx_ifname]->arg); | |
718e3744 | 1039 | } |
6b0655a2 | 1040 | |
d62a17ae | 1041 | static struct ripng_interface *ri_new(void) |
718e3744 | 1042 | { |
d62a17ae | 1043 | struct ripng_interface *ri; |
1044 | ri = XCALLOC(MTYPE_IF, sizeof(struct ripng_interface)); | |
a94434b6 | 1045 | |
d62a17ae | 1046 | /* Set default split-horizon behavior. If the interface is Frame |
1047 | Relay or SMDS is enabled, the default value for split-horizon is | |
1048 | off. But currently Zebra does detect Frame Relay or SMDS | |
1049 | interface. So all interface is set to split horizon. */ | |
1050 | ri->split_horizon_default = RIPNG_SPLIT_HORIZON; | |
1051 | ri->split_horizon = ri->split_horizon_default; | |
a94434b6 | 1052 | |
d62a17ae | 1053 | return ri; |
718e3744 | 1054 | } |
1055 | ||
d62a17ae | 1056 | static int ripng_if_new_hook(struct interface *ifp) |
718e3744 | 1057 | { |
d62a17ae | 1058 | ifp->info = ri_new(); |
1059 | return 0; | |
718e3744 | 1060 | } |
1061 | ||
a94434b6 | 1062 | /* Called when interface structure deleted. */ |
d62a17ae | 1063 | static int ripng_if_delete_hook(struct interface *ifp) |
a94434b6 | 1064 | { |
d62a17ae | 1065 | XFREE(MTYPE_IF, ifp->info); |
1066 | ifp->info = NULL; | |
1067 | return 0; | |
a94434b6 | 1068 | } |
1069 | ||
718e3744 | 1070 | /* Configuration write function for ripngd. */ |
d62a17ae | 1071 | static int interface_config_write(struct vty *vty) |
718e3744 | 1072 | { |
f4e14fdb | 1073 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 1074 | struct interface *ifp; |
1075 | struct ripng_interface *ri; | |
1076 | int write = 0; | |
1077 | ||
451fda4f | 1078 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 1079 | ri = ifp->info; |
1080 | ||
1081 | /* Do not display the interface if there is no | |
1082 | * configuration about it. | |
1083 | **/ | |
1084 | if ((!ifp->desc) | |
1085 | && (ri->split_horizon == ri->split_horizon_default)) | |
1086 | continue; | |
1087 | ||
a8b828f3 | 1088 | vty_frame(vty, "interface %s\n", ifp->name); |
d62a17ae | 1089 | if (ifp->desc) |
1090 | vty_out(vty, " description %s\n", ifp->desc); | |
1091 | ||
1092 | /* Split horizon. */ | |
1093 | if (ri->split_horizon != ri->split_horizon_default) { | |
1094 | switch (ri->split_horizon) { | |
1095 | case RIPNG_SPLIT_HORIZON: | |
1096 | vty_out(vty, " ipv6 ripng split-horizon\n"); | |
1097 | break; | |
1098 | case RIPNG_SPLIT_HORIZON_POISONED_REVERSE: | |
1099 | vty_out(vty, | |
1100 | " ipv6 ripng split-horizon poisoned-reverse\n"); | |
1101 | break; | |
1102 | case RIPNG_NO_SPLIT_HORIZON: | |
1103 | default: | |
1104 | vty_out(vty, " no ipv6 ripng split-horizon\n"); | |
1105 | break; | |
1106 | } | |
1107 | } | |
1108 | ||
a8b828f3 | 1109 | vty_endframe(vty, "!\n"); |
d62a17ae | 1110 | |
1111 | write++; | |
a94434b6 | 1112 | } |
d62a17ae | 1113 | return write; |
718e3744 | 1114 | } |
1115 | ||
1116 | /* ripngd's interface node. */ | |
d62a17ae | 1117 | static struct cmd_node interface_node = { |
1118 | INTERFACE_NODE, "%s(config-if)# ", 1 /* VTYSH */ | |
718e3744 | 1119 | }; |
1120 | ||
1121 | /* Initialization of interface. */ | |
d62a17ae | 1122 | void ripng_if_init() |
718e3744 | 1123 | { |
d62a17ae | 1124 | /* Interface initialize. */ |
ce19a04a DL |
1125 | hook_register_prio(if_add, 0, ripng_if_new_hook); |
1126 | hook_register_prio(if_del, 0, ripng_if_delete_hook); | |
718e3744 | 1127 | |
d62a17ae | 1128 | /* RIPng enable network init. */ |
fe08ba7e | 1129 | ripng_enable_network = agg_table_init(); |
718e3744 | 1130 | |
d62a17ae | 1131 | /* RIPng enable interface init. */ |
1132 | ripng_enable_if = vector_init(1); | |
718e3744 | 1133 | |
d62a17ae | 1134 | /* RIPng passive interface. */ |
1135 | Vripng_passive_interface = vector_init(1); | |
718e3744 | 1136 | |
d62a17ae | 1137 | /* Install interface node. */ |
1138 | install_node(&interface_node, interface_config_write); | |
1139 | if_cmd_init(); | |
718e3744 | 1140 | |
d62a17ae | 1141 | install_element(RIPNG_NODE, &ripng_network_cmd); |
1142 | install_element(RIPNG_NODE, &no_ripng_network_cmd); | |
1143 | install_element(RIPNG_NODE, &ripng_passive_interface_cmd); | |
1144 | install_element(RIPNG_NODE, &no_ripng_passive_interface_cmd); | |
a94434b6 | 1145 | |
d62a17ae | 1146 | install_element(INTERFACE_NODE, &ipv6_ripng_split_horizon_cmd); |
1147 | install_element(INTERFACE_NODE, | |
1148 | &ipv6_ripng_split_horizon_poisoned_reverse_cmd); | |
1149 | install_element(INTERFACE_NODE, &no_ipv6_ripng_split_horizon_cmd); | |
718e3744 | 1150 | } |