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