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718e3744 | 1 | /* Interface related function for RIP. |
2 | * Copyright (C) 1997, 98 Kunihiro Ishiguro <kunihiro@zebra.org> | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra 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 | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
896014f4 DL |
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 | |
718e3744 | 19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "if.h" | |
25 | #include "sockunion.h" | |
26 | #include "prefix.h" | |
27 | #include "memory.h" | |
28 | #include "network.h" | |
29 | #include "table.h" | |
30 | #include "log.h" | |
31 | #include "stream.h" | |
32 | #include "thread.h" | |
33 | #include "zclient.h" | |
34 | #include "filter.h" | |
35 | #include "sockopt.h" | |
edd7c245 | 36 | #include "privs.h" |
77cbe4a1 | 37 | #include "lib_errors.h" |
f0ab22fb | 38 | #include "northbound_cli.h" |
718e3744 | 39 | |
40 | #include "zebra/connected.h" | |
41 | ||
42 | #include "ripd/ripd.h" | |
43 | #include "ripd/rip_debug.h" | |
dc63bfd4 | 44 | #include "ripd/rip_interface.h" |
6b0655a2 | 45 | |
814a2585 DL |
46 | DEFINE_MTYPE_STATIC(RIPD, RIP_INTERFACE, "RIP interface") |
47 | DEFINE_MTYPE(RIPD, RIP_INTERFACE_STRING, "RIP Interface String") | |
d62a17ae | 48 | DEFINE_HOOK(rip_ifaddr_add, (struct connected * ifc), (ifc)) |
49 | DEFINE_HOOK(rip_ifaddr_del, (struct connected * ifc), (ifc)) | |
3012671f | 50 | |
dc63bfd4 | 51 | /* static prototypes */ |
d62a17ae | 52 | static void rip_enable_apply(struct interface *); |
53 | static void rip_passive_interface_apply(struct interface *); | |
dc63bfd4 | 54 | static int rip_if_down(struct interface *ifp); |
045c5389 | 55 | static int rip_enable_if_lookup(struct rip *rip, const char *ifname); |
d62a17ae | 56 | static int rip_enable_network_lookup2(struct connected *connected); |
045c5389 | 57 | static void rip_enable_apply_all(struct rip *rip); |
6b0655a2 | 58 | |
d62a17ae | 59 | const struct message ri_version_msg[] = {{RI_RIP_VERSION_1, "1"}, |
60 | {RI_RIP_VERSION_2, "2"}, | |
61 | {RI_RIP_VERSION_1_AND_2, "1 2"}, | |
62 | {RI_RIP_VERSION_NONE, "none"}, | |
63 | {0}}; | |
718e3744 | 64 | |
718e3744 | 65 | /* Join to the RIP version 2 multicast group. */ |
d62a17ae | 66 | static int ipv4_multicast_join(int sock, struct in_addr group, |
67 | struct in_addr ifa, ifindex_t ifindex) | |
718e3744 | 68 | { |
d62a17ae | 69 | int ret; |
718e3744 | 70 | |
d62a17ae | 71 | ret = setsockopt_ipv4_multicast(sock, IP_ADD_MEMBERSHIP, ifa, |
72 | group.s_addr, ifindex); | |
718e3744 | 73 | |
d62a17ae | 74 | if (ret < 0) |
75 | zlog_info("can't setsockopt IP_ADD_MEMBERSHIP %s", | |
76 | safe_strerror(errno)); | |
718e3744 | 77 | |
d62a17ae | 78 | return ret; |
718e3744 | 79 | } |
80 | ||
81 | /* Leave from the RIP version 2 multicast group. */ | |
d62a17ae | 82 | static int ipv4_multicast_leave(int sock, struct in_addr group, |
83 | struct in_addr ifa, ifindex_t ifindex) | |
718e3744 | 84 | { |
d62a17ae | 85 | int ret; |
718e3744 | 86 | |
d62a17ae | 87 | ret = setsockopt_ipv4_multicast(sock, IP_DROP_MEMBERSHIP, ifa, |
88 | group.s_addr, ifindex); | |
718e3744 | 89 | |
d62a17ae | 90 | if (ret < 0) |
91 | zlog_info("can't setsockopt IP_DROP_MEMBERSHIP"); | |
718e3744 | 92 | |
d62a17ae | 93 | return ret; |
718e3744 | 94 | } |
6b0655a2 | 95 | |
d62a17ae | 96 | static void rip_interface_reset(struct rip_interface *); |
1dec2166 | 97 | |
718e3744 | 98 | /* Allocate new RIP's interface configuration. */ |
d62a17ae | 99 | static struct rip_interface *rip_interface_new(void) |
718e3744 | 100 | { |
d62a17ae | 101 | struct rip_interface *ri; |
718e3744 | 102 | |
d62a17ae | 103 | ri = XCALLOC(MTYPE_RIP_INTERFACE, sizeof(struct rip_interface)); |
718e3744 | 104 | |
d62a17ae | 105 | rip_interface_reset(ri); |
718e3744 | 106 | |
d62a17ae | 107 | return ri; |
718e3744 | 108 | } |
109 | ||
d62a17ae | 110 | void rip_interface_multicast_set(int sock, struct connected *connected) |
718e3744 | 111 | { |
d62a17ae | 112 | struct in_addr addr; |
4a3867d0 | 113 | |
d62a17ae | 114 | assert(connected != NULL); |
4a3867d0 | 115 | |
d62a17ae | 116 | addr = CONNECTED_ID(connected)->u.prefix4; |
117 | ||
118 | if (setsockopt_ipv4_multicast_if(sock, addr, connected->ifp->ifindex) | |
119 | < 0) { | |
120 | zlog_warn( | |
121 | "Can't setsockopt IP_MULTICAST_IF on fd %d to " | |
122 | "ifindex %d for interface %s", | |
123 | sock, connected->ifp->ifindex, connected->ifp->name); | |
124 | } | |
4a3867d0 | 125 | |
d62a17ae | 126 | return; |
3fb9cd6e | 127 | } |
718e3744 | 128 | |
129 | /* Send RIP request packet to specified interface. */ | |
d7c0a89a | 130 | static void rip_request_interface_send(struct interface *ifp, uint8_t version) |
718e3744 | 131 | { |
d62a17ae | 132 | struct sockaddr_in to; |
718e3744 | 133 | |
d62a17ae | 134 | /* RIPv2 support multicast. */ |
135 | if (version == RIPv2 && if_is_multicast(ifp)) { | |
718e3744 | 136 | |
d62a17ae | 137 | if (IS_RIP_DEBUG_EVENT) |
138 | zlog_debug("multicast request on %s", ifp->name); | |
718e3744 | 139 | |
d62a17ae | 140 | rip_request_send(NULL, ifp, version, NULL); |
141 | return; | |
142 | } | |
718e3744 | 143 | |
d62a17ae | 144 | /* RIPv1 and non multicast interface. */ |
145 | if (if_is_pointopoint(ifp) || if_is_broadcast(ifp)) { | |
146 | struct listnode *cnode, *cnnode; | |
147 | struct connected *connected; | |
148 | ||
149 | if (IS_RIP_DEBUG_EVENT) | |
150 | zlog_debug("broadcast request to %s", ifp->name); | |
151 | ||
152 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, | |
153 | connected)) { | |
2e37ad7f RW |
154 | if (connected->address->family != AF_INET) |
155 | continue; | |
156 | ||
157 | memset(&to, 0, sizeof(struct sockaddr_in)); | |
158 | to.sin_port = htons(RIP_PORT_DEFAULT); | |
159 | if (connected->destination) | |
160 | /* use specified broadcast or peer | |
161 | * destination addr */ | |
162 | to.sin_addr = connected->destination->u.prefix4; | |
163 | else if (connected->address->prefixlen | |
164 | < IPV4_MAX_PREFIXLEN) | |
165 | /* calculate the appropriate broadcast | |
166 | * address */ | |
167 | to.sin_addr.s_addr = ipv4_broadcast_addr( | |
168 | connected->address->u.prefix4.s_addr, | |
169 | connected->address->prefixlen); | |
170 | else | |
171 | /* do not know where to send the packet | |
172 | */ | |
173 | continue; | |
174 | ||
175 | if (IS_RIP_DEBUG_EVENT) | |
176 | zlog_debug("SEND request to %s", | |
177 | inet_ntoa(to.sin_addr)); | |
178 | ||
179 | rip_request_send(&to, ifp, version, connected); | |
d62a17ae | 180 | } |
718e3744 | 181 | } |
718e3744 | 182 | } |
183 | ||
184 | /* This will be executed when interface goes up. */ | |
d62a17ae | 185 | static void rip_request_interface(struct interface *ifp) |
718e3744 | 186 | { |
d62a17ae | 187 | struct rip_interface *ri; |
2e37ad7f | 188 | int vsend; |
718e3744 | 189 | |
d62a17ae | 190 | /* In default ripd doesn't send RIP_REQUEST to the loopback interface. |
191 | */ | |
192 | if (if_is_loopback(ifp)) | |
193 | return; | |
718e3744 | 194 | |
d62a17ae | 195 | /* If interface is down, don't send RIP packet. */ |
196 | if (!if_is_operative(ifp)) | |
197 | return; | |
718e3744 | 198 | |
d62a17ae | 199 | /* Fetch RIP interface information. */ |
200 | ri = ifp->info; | |
718e3744 | 201 | |
d62a17ae | 202 | /* If there is no version configuration in the interface, |
203 | use rip's version setting. */ | |
045c5389 | 204 | vsend = ((ri->ri_send == RI_RIP_UNSPEC) ? ri->rip->version_send |
2e37ad7f RW |
205 | : ri->ri_send); |
206 | if (vsend & RIPv1) | |
207 | rip_request_interface_send(ifp, RIPv1); | |
208 | if (vsend & RIPv2) | |
209 | rip_request_interface_send(ifp, RIPv2); | |
718e3744 | 210 | } |
211 | ||
2c239705 | 212 | #if 0 |
718e3744 | 213 | /* Send RIP request to the neighbor. */ |
dc63bfd4 | 214 | static void |
718e3744 | 215 | rip_request_neighbor (struct in_addr addr) |
216 | { | |
217 | struct sockaddr_in to; | |
218 | ||
219 | memset (&to, 0, sizeof (struct sockaddr_in)); | |
220 | to.sin_port = htons (RIP_PORT_DEFAULT); | |
221 | to.sin_addr = addr; | |
222 | ||
931cd54d | 223 | rip_request_send (&to, NULL, rip->version_send, NULL); |
718e3744 | 224 | } |
225 | ||
226 | /* Request routes at all interfaces. */ | |
dc63bfd4 | 227 | static void |
228 | rip_request_neighbor_all (void) | |
718e3744 | 229 | { |
230 | struct route_node *rp; | |
231 | ||
232 | if (! rip) | |
233 | return; | |
234 | ||
235 | if (IS_RIP_DEBUG_EVENT) | |
5d6c3779 | 236 | zlog_debug ("request to the all neighbor"); |
718e3744 | 237 | |
238 | /* Send request to all neighbor. */ | |
239 | for (rp = route_top (rip->neighbor); rp; rp = route_next (rp)) | |
240 | if (rp->info) | |
241 | rip_request_neighbor (rp->p.u.prefix4); | |
242 | } | |
2c239705 | 243 | #endif |
718e3744 | 244 | |
245 | /* Multicast packet receive socket. */ | |
d62a17ae | 246 | static int rip_multicast_join(struct interface *ifp, int sock) |
718e3744 | 247 | { |
d62a17ae | 248 | struct listnode *cnode; |
249 | struct connected *ifc; | |
718e3744 | 250 | |
d62a17ae | 251 | if (if_is_operative(ifp) && if_is_multicast(ifp)) { |
252 | if (IS_RIP_DEBUG_EVENT) | |
253 | zlog_debug("multicast join at %s", ifp->name); | |
718e3744 | 254 | |
d62a17ae | 255 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, ifc)) { |
256 | struct prefix_ipv4 *p; | |
257 | struct in_addr group; | |
258 | ||
259 | p = (struct prefix_ipv4 *)ifc->address; | |
260 | ||
261 | if (p->family != AF_INET) | |
262 | continue; | |
263 | ||
264 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
265 | if (ipv4_multicast_join(sock, group, p->prefix, | |
266 | ifp->ifindex) | |
267 | < 0) | |
268 | return -1; | |
269 | else | |
270 | return 0; | |
271 | } | |
718e3744 | 272 | } |
d62a17ae | 273 | return 0; |
718e3744 | 274 | } |
275 | ||
276 | /* Leave from multicast group. */ | |
d62a17ae | 277 | static void rip_multicast_leave(struct interface *ifp, int sock) |
718e3744 | 278 | { |
d62a17ae | 279 | struct listnode *cnode; |
280 | struct connected *connected; | |
718e3744 | 281 | |
d62a17ae | 282 | if (if_is_up(ifp) && if_is_multicast(ifp)) { |
283 | if (IS_RIP_DEBUG_EVENT) | |
284 | zlog_debug("multicast leave from %s", ifp->name); | |
718e3744 | 285 | |
d62a17ae | 286 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
287 | struct prefix_ipv4 *p; | |
288 | struct in_addr group; | |
289 | ||
290 | p = (struct prefix_ipv4 *)connected->address; | |
291 | ||
292 | if (p->family != AF_INET) | |
293 | continue; | |
294 | ||
295 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
296 | if (ipv4_multicast_leave(sock, group, p->prefix, | |
297 | ifp->ifindex) | |
298 | == 0) | |
299 | return; | |
300 | } | |
301 | } | |
718e3744 | 302 | } |
303 | ||
304 | /* Is there and address on interface that I could use ? */ | |
d62a17ae | 305 | static int rip_if_ipv4_address_check(struct interface *ifp) |
718e3744 | 306 | { |
d62a17ae | 307 | struct listnode *nn; |
308 | struct connected *connected; | |
309 | int count = 0; | |
718e3744 | 310 | |
d62a17ae | 311 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, nn, connected)) { |
312 | struct prefix *p; | |
718e3744 | 313 | |
d62a17ae | 314 | p = connected->address; |
315 | ||
316 | if (p->family == AF_INET) | |
317 | count++; | |
318 | } | |
718e3744 | 319 | |
d62a17ae | 320 | return count; |
718e3744 | 321 | } |
d62a17ae | 322 | |
31a476c7 | 323 | |
324 | /* Does this address belongs to me ? */ | |
045c5389 | 325 | int if_check_address(struct rip *rip, struct in_addr addr) |
d62a17ae | 326 | { |
d62a17ae | 327 | struct interface *ifp; |
31a476c7 | 328 | |
ae7b826a | 329 | FOR_ALL_INTERFACES (rip->vrf, ifp) { |
d62a17ae | 330 | struct listnode *cnode; |
331 | struct connected *connected; | |
31a476c7 | 332 | |
d62a17ae | 333 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
334 | struct prefix_ipv4 *p; | |
31a476c7 | 335 | |
d62a17ae | 336 | p = (struct prefix_ipv4 *)connected->address; |
337 | ||
338 | if (p->family != AF_INET) | |
339 | continue; | |
340 | ||
341 | if (IPV4_ADDR_CMP(&p->prefix, &addr) == 0) | |
342 | return 1; | |
343 | } | |
31a476c7 | 344 | } |
d62a17ae | 345 | return 0; |
31a476c7 | 346 | } |
347 | ||
718e3744 | 348 | /* Inteface link down message processing. */ |
121f9dee | 349 | int rip_interface_down(ZAPI_CALLBACK_ARGS) |
718e3744 | 350 | { |
d62a17ae | 351 | struct interface *ifp; |
352 | struct stream *s; | |
718e3744 | 353 | |
d62a17ae | 354 | s = zclient->ibuf; |
718e3744 | 355 | |
d62a17ae | 356 | /* zebra_interface_state_read() updates interface structure in |
357 | iflist. */ | |
358 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 359 | |
d62a17ae | 360 | if (ifp == NULL) |
361 | return 0; | |
718e3744 | 362 | |
ae7b826a | 363 | rip_interface_sync(ifp); |
d62a17ae | 364 | rip_if_down(ifp); |
718e3744 | 365 | |
d62a17ae | 366 | if (IS_RIP_DEBUG_ZEBRA) |
367 | zlog_debug( | |
ae7b826a | 368 | "interface %s vrf %u index %d flags %llx metric %d mtu %d is down", |
a36898e7 | 369 | ifp->name, ifp->vrf_id, ifp->ifindex, |
ae7b826a | 370 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
d62a17ae | 371 | |
372 | return 0; | |
718e3744 | 373 | } |
374 | ||
375 | /* Inteface link up message processing */ | |
ddbf3e60 | 376 | static int rip_ifp_up(struct interface *ifp) |
718e3744 | 377 | { |
d62a17ae | 378 | if (IS_RIP_DEBUG_ZEBRA) |
379 | zlog_debug( | |
ae7b826a | 380 | "interface %s vrf %u index %d flags %#llx metric %d mtu %d is up", |
a36898e7 | 381 | ifp->name, ifp->vrf_id, ifp->ifindex, |
ae7b826a RW |
382 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
383 | ||
384 | rip_interface_sync(ifp); | |
718e3744 | 385 | |
d62a17ae | 386 | /* Check if this interface is RIP enabled or not.*/ |
387 | rip_enable_apply(ifp); | |
718e3744 | 388 | |
d62a17ae | 389 | /* Check for a passive interface */ |
390 | rip_passive_interface_apply(ifp); | |
718e3744 | 391 | |
d62a17ae | 392 | /* Apply distribute list to the all interface. */ |
393 | rip_distribute_update_interface(ifp); | |
718e3744 | 394 | |
d62a17ae | 395 | return 0; |
718e3744 | 396 | } |
397 | ||
398 | /* Inteface addition message from zebra. */ | |
ef7bd2a3 | 399 | static int rip_ifp_create(struct interface *ifp) |
718e3744 | 400 | { |
ae7b826a | 401 | rip_interface_sync(ifp); |
718e3744 | 402 | |
d62a17ae | 403 | if (IS_RIP_DEBUG_ZEBRA) |
404 | zlog_debug( | |
ae7b826a | 405 | "interface add %s vrf %u index %d flags %#llx metric %d mtu %d", |
a36898e7 | 406 | ifp->name, ifp->vrf_id, ifp->ifindex, |
ae7b826a | 407 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
718e3744 | 408 | |
d62a17ae | 409 | /* Check if this interface is RIP enabled or not.*/ |
410 | rip_enable_apply(ifp); | |
718e3744 | 411 | |
d62a17ae | 412 | /* Check for a passive interface */ |
413 | rip_passive_interface_apply(ifp); | |
718e3744 | 414 | |
d62a17ae | 415 | /* Apply distribute list to the all interface. */ |
416 | rip_distribute_update_interface(ifp); | |
718e3744 | 417 | |
d62a17ae | 418 | /* rip_request_neighbor_all (); */ |
16705130 | 419 | |
d62a17ae | 420 | /* Check interface routemap. */ |
421 | rip_if_rmap_update_interface(ifp); | |
422 | ||
423 | return 0; | |
718e3744 | 424 | } |
425 | ||
121f9dee | 426 | int rip_interface_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 427 | { |
d62a17ae | 428 | struct interface *ifp; |
429 | struct stream *s; | |
430 | ||
718e3744 | 431 | |
d62a17ae | 432 | s = zclient->ibuf; |
433 | /* zebra_interface_state_read() updates interface structure in iflist */ | |
434 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 435 | |
d62a17ae | 436 | if (ifp == NULL) |
437 | return 0; | |
438 | ||
ae7b826a | 439 | rip_interface_sync(ifp); |
d62a17ae | 440 | if (if_is_up(ifp)) { |
441 | rip_if_down(ifp); | |
442 | } | |
718e3744 | 443 | |
ae7b826a RW |
444 | zlog_info( |
445 | "interface delete %s vrf %u index %d flags %#llx metric %d mtu %d", | |
a36898e7 | 446 | ifp->name, ifp->vrf_id, ifp->ifindex, |
ae7b826a | 447 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
718e3744 | 448 | |
d62a17ae | 449 | /* To support pseudo interface do not free interface structure. */ |
450 | /* if_delete(ifp); */ | |
ff880b78 | 451 | if_set_index(ifp, IFINDEX_INTERNAL); |
718e3744 | 452 | |
d62a17ae | 453 | return 0; |
718e3744 | 454 | } |
455 | ||
ae7b826a | 456 | /* VRF update for an interface. */ |
121f9dee | 457 | int rip_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
ae7b826a RW |
458 | { |
459 | struct interface *ifp; | |
460 | vrf_id_t new_vrf_id; | |
461 | ||
462 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, | |
463 | &new_vrf_id); | |
464 | if (!ifp) | |
465 | return 0; | |
466 | ||
467 | if (IS_RIP_DEBUG_ZEBRA) | |
468 | zlog_debug("interface %s VRF change vrf_id %u new vrf id %u", | |
469 | ifp->name, vrf_id, new_vrf_id); | |
470 | ||
a36898e7 | 471 | if_update_to_new_vrf(ifp, new_vrf_id); |
ae7b826a RW |
472 | rip_interface_sync(ifp); |
473 | ||
474 | return 0; | |
475 | } | |
476 | ||
d62a17ae | 477 | static void rip_interface_clean(struct rip_interface *ri) |
4305dfd1 | 478 | { |
d62a17ae | 479 | ri->enable_network = 0; |
480 | ri->enable_interface = 0; | |
481 | ri->running = 0; | |
718e3744 | 482 | |
d62a17ae | 483 | if (ri->t_wakeup) { |
484 | thread_cancel(ri->t_wakeup); | |
485 | ri->t_wakeup = NULL; | |
486 | } | |
4305dfd1 | 487 | } |
718e3744 | 488 | |
045c5389 | 489 | void rip_interfaces_clean(struct rip *rip) |
718e3744 | 490 | { |
d62a17ae | 491 | struct interface *ifp; |
718e3744 | 492 | |
ae7b826a | 493 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 494 | rip_interface_clean(ifp->info); |
1dec2166 | 495 | } |
718e3744 | 496 | |
d62a17ae | 497 | static void rip_interface_reset(struct rip_interface *ri) |
4305dfd1 | 498 | { |
94b117b2 RW |
499 | ri->auth_type = yang_get_default_enum("%s/authentication-scheme/mode", |
500 | RIP_IFACE); | |
501 | ri->md5_auth_len = yang_get_default_enum( | |
502 | "%s/authentication-scheme/md5-auth-length", RIP_IFACE); | |
718e3744 | 503 | |
d62a17ae | 504 | /* Set default split-horizon behavior. If the interface is Frame |
505 | Relay or SMDS is enabled, the default value for split-horizon is | |
506 | off. But currently Zebra does detect Frame Relay or SMDS | |
507 | interface. So all interface is set to split horizon. */ | |
94b117b2 RW |
508 | ri->split_horizon = |
509 | yang_get_default_enum("%s/split-horizon", RIP_IFACE); | |
718e3744 | 510 | |
94b117b2 RW |
511 | ri->ri_send = yang_get_default_enum("%s/version-send", RIP_IFACE); |
512 | ri->ri_receive = yang_get_default_enum("%s/version-receive", RIP_IFACE); | |
513 | ri->v2_broadcast = yang_get_default_bool("%s/v2-broadcast", RIP_IFACE); | |
f90310cf | 514 | |
0a22ddfb | 515 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->auth_str); |
03c20031 | 516 | |
0a22ddfb | 517 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->key_chain); |
03c20031 | 518 | |
d62a17ae | 519 | ri->list[RIP_FILTER_IN] = NULL; |
520 | ri->list[RIP_FILTER_OUT] = NULL; | |
718e3744 | 521 | |
d62a17ae | 522 | ri->prefix[RIP_FILTER_IN] = NULL; |
523 | ri->prefix[RIP_FILTER_OUT] = NULL; | |
718e3744 | 524 | |
d62a17ae | 525 | ri->recv_badpackets = 0; |
526 | ri->recv_badroutes = 0; | |
527 | ri->sent_updates = 0; | |
4305dfd1 | 528 | |
d62a17ae | 529 | ri->passive = 0; |
718e3744 | 530 | |
d62a17ae | 531 | rip_interface_clean(ri); |
4305dfd1 | 532 | } |
718e3744 | 533 | |
d62a17ae | 534 | int rip_if_down(struct interface *ifp) |
718e3744 | 535 | { |
045c5389 | 536 | struct rip *rip; |
d62a17ae | 537 | struct route_node *rp; |
538 | struct rip_info *rinfo; | |
539 | struct rip_interface *ri = NULL; | |
540 | struct list *list = NULL; | |
541 | struct listnode *listnode = NULL, *nextnode = NULL; | |
045c5389 RW |
542 | |
543 | ri = ifp->info; | |
544 | rip = ri->rip; | |
d62a17ae | 545 | if (rip) { |
546 | for (rp = route_top(rip->table); rp; rp = route_next(rp)) | |
547 | if ((list = rp->info) != NULL) | |
548 | for (ALL_LIST_ELEMENTS(list, listnode, nextnode, | |
549 | rinfo)) | |
dd127197 | 550 | if (rinfo->nh.ifindex == ifp->ifindex) |
045c5389 | 551 | rip_ecmp_delete(rip, rinfo); |
d62a17ae | 552 | |
553 | if (ri->running) { | |
554 | if (IS_RIP_DEBUG_EVENT) | |
555 | zlog_debug("turn off %s", ifp->name); | |
556 | ||
557 | /* Leave from multicast group. */ | |
558 | rip_multicast_leave(ifp, rip->sock); | |
559 | ||
560 | ri->running = 0; | |
561 | } | |
562 | } | |
563 | ||
564 | return 0; | |
718e3744 | 565 | } |
566 | ||
d62a17ae | 567 | static void rip_apply_address_add(struct connected *ifc) |
dc63bfd4 | 568 | { |
045c5389 RW |
569 | struct rip_interface *ri = ifc->ifp->info; |
570 | struct rip *rip = ri->rip; | |
d62a17ae | 571 | struct prefix_ipv4 address; |
3f5682c8 | 572 | struct nexthop nh; |
d62a17ae | 573 | struct prefix *p; |
16705130 | 574 | |
d62a17ae | 575 | if (!rip) |
576 | return; | |
16705130 | 577 | |
d62a17ae | 578 | if (!if_is_up(ifc->ifp)) |
579 | return; | |
16705130 | 580 | |
d62a17ae | 581 | p = ifc->address; |
16705130 | 582 | |
d62a17ae | 583 | memset(&address, 0, sizeof(address)); |
3f5682c8 DS |
584 | memset(&nh, 0, sizeof(nh)); |
585 | ||
d62a17ae | 586 | address.family = p->family; |
587 | address.prefix = p->u.prefix4; | |
588 | address.prefixlen = p->prefixlen; | |
589 | apply_mask_ipv4(&address); | |
16705130 | 590 | |
3f5682c8 DS |
591 | nh.ifindex = ifc->ifp->ifindex; |
592 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
593 | ||
d62a17ae | 594 | /* Check if this interface is RIP enabled or not |
595 | or Check if this address's prefix is RIP enabled */ | |
045c5389 | 596 | if ((rip_enable_if_lookup(rip, ifc->ifp->name) >= 0) |
d62a17ae | 597 | || (rip_enable_network_lookup2(ifc) >= 0)) |
045c5389 RW |
598 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
599 | RIP_ROUTE_INTERFACE, &address, &nh, 0, 0, | |
600 | 0); | |
16705130 | 601 | } |
602 | ||
121f9dee | 603 | int rip_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 604 | { |
d62a17ae | 605 | struct connected *ifc; |
606 | struct prefix *p; | |
718e3744 | 607 | |
d62a17ae | 608 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, |
609 | zclient->ibuf, vrf_id); | |
718e3744 | 610 | |
d62a17ae | 611 | if (ifc == NULL) |
612 | return 0; | |
718e3744 | 613 | |
d62a17ae | 614 | p = ifc->address; |
718e3744 | 615 | |
d62a17ae | 616 | if (p->family == AF_INET) { |
617 | if (IS_RIP_DEBUG_ZEBRA) | |
618 | zlog_debug("connected address %s/%d is added", | |
619 | inet_ntoa(p->u.prefix4), p->prefixlen); | |
16705130 | 620 | |
d62a17ae | 621 | rip_enable_apply(ifc->ifp); |
622 | /* Check if this prefix needs to be redistributed */ | |
623 | rip_apply_address_add(ifc); | |
718e3744 | 624 | |
d62a17ae | 625 | hook_call(rip_ifaddr_add, ifc); |
626 | } | |
718e3744 | 627 | |
d62a17ae | 628 | return 0; |
718e3744 | 629 | } |
630 | ||
d62a17ae | 631 | static void rip_apply_address_del(struct connected *ifc) |
632 | { | |
045c5389 RW |
633 | struct rip_interface *ri = ifc->ifp->info; |
634 | struct rip *rip = ri->rip; | |
d62a17ae | 635 | struct prefix_ipv4 address; |
636 | struct prefix *p; | |
16705130 | 637 | |
d62a17ae | 638 | if (!rip) |
639 | return; | |
16705130 | 640 | |
d62a17ae | 641 | if (!if_is_up(ifc->ifp)) |
642 | return; | |
16705130 | 643 | |
d62a17ae | 644 | p = ifc->address; |
16705130 | 645 | |
d62a17ae | 646 | memset(&address, 0, sizeof(address)); |
647 | address.family = p->family; | |
648 | address.prefix = p->u.prefix4; | |
649 | address.prefixlen = p->prefixlen; | |
650 | apply_mask_ipv4(&address); | |
16705130 | 651 | |
045c5389 | 652 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, |
d62a17ae | 653 | &address, ifc->ifp->ifindex); |
16705130 | 654 | } |
655 | ||
121f9dee | 656 | int rip_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 657 | { |
d62a17ae | 658 | struct connected *ifc; |
659 | struct prefix *p; | |
718e3744 | 660 | |
d62a17ae | 661 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, |
662 | zclient->ibuf, vrf_id); | |
718e3744 | 663 | |
d62a17ae | 664 | if (ifc) { |
665 | p = ifc->address; | |
666 | if (p->family == AF_INET) { | |
667 | if (IS_RIP_DEBUG_ZEBRA) | |
668 | zlog_debug("connected address %s/%d is deleted", | |
669 | inet_ntoa(p->u.prefix4), | |
670 | p->prefixlen); | |
16705130 | 671 | |
d62a17ae | 672 | hook_call(rip_ifaddr_del, ifc); |
718e3744 | 673 | |
d62a17ae | 674 | /* Chech wether this prefix needs to be removed */ |
675 | rip_apply_address_del(ifc); | |
676 | } | |
718e3744 | 677 | |
d62a17ae | 678 | connected_free(ifc); |
679 | } | |
718e3744 | 680 | |
d62a17ae | 681 | return 0; |
718e3744 | 682 | } |
6b0655a2 | 683 | |
718e3744 | 684 | /* Check interface is enabled by network statement. */ |
16705130 | 685 | /* Check wether the interface has at least a connected prefix that |
686 | * is within the ripng_enable_network table. */ | |
d62a17ae | 687 | static int rip_enable_network_lookup_if(struct interface *ifp) |
688 | { | |
045c5389 RW |
689 | struct rip_interface *ri = ifp->info; |
690 | struct rip *rip = ri->rip; | |
d62a17ae | 691 | struct listnode *node, *nnode; |
692 | struct connected *connected; | |
693 | struct prefix_ipv4 address; | |
694 | ||
1205fdc4 RW |
695 | if (!rip) |
696 | return -1; | |
697 | ||
d62a17ae | 698 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { |
699 | struct prefix *p; | |
dc7204b7 | 700 | struct route_node *n; |
d62a17ae | 701 | |
702 | p = connected->address; | |
703 | ||
704 | if (p->family == AF_INET) { | |
705 | address.family = AF_INET; | |
706 | address.prefix = p->u.prefix4; | |
707 | address.prefixlen = IPV4_MAX_BITLEN; | |
708 | ||
1205fdc4 | 709 | n = route_node_match(rip->enable_network, |
dc7204b7 A |
710 | (struct prefix *)&address); |
711 | if (n) { | |
712 | route_unlock_node(n); | |
d62a17ae | 713 | return 1; |
714 | } | |
715 | } | |
716 | } | |
717 | return -1; | |
718e3744 | 718 | } |
719 | ||
16705130 | 720 | /* Check wether connected is within the ripng_enable_network table. */ |
045c5389 | 721 | static int rip_enable_network_lookup2(struct connected *connected) |
16705130 | 722 | { |
045c5389 RW |
723 | struct rip_interface *ri = connected->ifp->info; |
724 | struct rip *rip = ri->rip; | |
d62a17ae | 725 | struct prefix_ipv4 address; |
726 | struct prefix *p; | |
16705130 | 727 | |
d62a17ae | 728 | p = connected->address; |
16705130 | 729 | |
d62a17ae | 730 | if (p->family == AF_INET) { |
731 | struct route_node *node; | |
16705130 | 732 | |
d62a17ae | 733 | address.family = p->family; |
734 | address.prefix = p->u.prefix4; | |
735 | address.prefixlen = IPV4_MAX_BITLEN; | |
16705130 | 736 | |
d62a17ae | 737 | /* LPM on p->family, p->u.prefix4/IPV4_MAX_BITLEN within |
1205fdc4 RW |
738 | * rip->enable_network */ |
739 | node = route_node_match(rip->enable_network, | |
d62a17ae | 740 | (struct prefix *)&address); |
16705130 | 741 | |
d62a17ae | 742 | if (node) { |
743 | route_unlock_node(node); | |
744 | return 1; | |
745 | } | |
746 | } | |
16705130 | 747 | |
d62a17ae | 748 | return -1; |
16705130 | 749 | } |
718e3744 | 750 | /* Add RIP enable network. */ |
045c5389 | 751 | int rip_enable_network_add(struct rip *rip, struct prefix *p) |
718e3744 | 752 | { |
d62a17ae | 753 | struct route_node *node; |
718e3744 | 754 | |
1205fdc4 | 755 | node = route_node_get(rip->enable_network, p); |
718e3744 | 756 | |
d62a17ae | 757 | if (node->info) { |
758 | route_unlock_node(node); | |
3d7a1be8 | 759 | return NB_ERR_INCONSISTENCY; |
d62a17ae | 760 | } else |
761 | node->info = (void *)1; | |
718e3744 | 762 | |
d62a17ae | 763 | /* XXX: One should find a better solution than a generic one */ |
045c5389 | 764 | rip_enable_apply_all(rip); |
16705130 | 765 | |
3d7a1be8 | 766 | return NB_OK; |
718e3744 | 767 | } |
768 | ||
769 | /* Delete RIP enable network. */ | |
045c5389 | 770 | int rip_enable_network_delete(struct rip *rip, struct prefix *p) |
718e3744 | 771 | { |
d62a17ae | 772 | struct route_node *node; |
718e3744 | 773 | |
1205fdc4 | 774 | node = route_node_lookup(rip->enable_network, p); |
d62a17ae | 775 | if (node) { |
776 | node->info = NULL; | |
718e3744 | 777 | |
d62a17ae | 778 | /* Unlock info lock. */ |
779 | route_unlock_node(node); | |
718e3744 | 780 | |
d62a17ae | 781 | /* Unlock lookup lock. */ |
782 | route_unlock_node(node); | |
718e3744 | 783 | |
d62a17ae | 784 | /* XXX: One should find a better solution than a generic one */ |
045c5389 | 785 | rip_enable_apply_all(rip); |
16705130 | 786 | |
3d7a1be8 | 787 | return NB_OK; |
d62a17ae | 788 | } |
3d7a1be8 RW |
789 | |
790 | return NB_ERR_INCONSISTENCY; | |
718e3744 | 791 | } |
792 | ||
793 | /* Check interface is enabled by ifname statement. */ | |
045c5389 | 794 | static int rip_enable_if_lookup(struct rip *rip, const char *ifname) |
718e3744 | 795 | { |
d62a17ae | 796 | unsigned int i; |
797 | char *str; | |
718e3744 | 798 | |
ca046902 RW |
799 | if (!rip) |
800 | return -1; | |
801 | ||
802 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
803 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) | |
d62a17ae | 804 | if (strcmp(str, ifname) == 0) |
805 | return i; | |
806 | return -1; | |
718e3744 | 807 | } |
808 | ||
809 | /* Add interface to rip_enable_if. */ | |
045c5389 | 810 | int rip_enable_if_add(struct rip *rip, const char *ifname) |
718e3744 | 811 | { |
d62a17ae | 812 | int ret; |
718e3744 | 813 | |
045c5389 | 814 | ret = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 815 | if (ret >= 0) |
3d7a1be8 | 816 | return NB_ERR_INCONSISTENCY; |
718e3744 | 817 | |
ca046902 | 818 | vector_set(rip->enable_interface, |
03c20031 | 819 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 820 | |
045c5389 | 821 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 822 | |
3d7a1be8 | 823 | return NB_OK; |
718e3744 | 824 | } |
825 | ||
826 | /* Delete interface from rip_enable_if. */ | |
045c5389 | 827 | int rip_enable_if_delete(struct rip *rip, const char *ifname) |
718e3744 | 828 | { |
d62a17ae | 829 | int index; |
830 | char *str; | |
718e3744 | 831 | |
045c5389 | 832 | index = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 833 | if (index < 0) |
3d7a1be8 | 834 | return NB_ERR_INCONSISTENCY; |
718e3744 | 835 | |
ca046902 | 836 | str = vector_slot(rip->enable_interface, index); |
03c20031 | 837 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 838 | vector_unset(rip->enable_interface, index); |
718e3744 | 839 | |
045c5389 | 840 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 841 | |
3d7a1be8 | 842 | return NB_OK; |
718e3744 | 843 | } |
844 | ||
845 | /* Join to multicast group and send request to the interface. */ | |
d62a17ae | 846 | static int rip_interface_wakeup(struct thread *t) |
718e3744 | 847 | { |
d62a17ae | 848 | struct interface *ifp; |
849 | struct rip_interface *ri; | |
718e3744 | 850 | |
d62a17ae | 851 | /* Get interface. */ |
852 | ifp = THREAD_ARG(t); | |
718e3744 | 853 | |
d62a17ae | 854 | ri = ifp->info; |
855 | ri->t_wakeup = NULL; | |
718e3744 | 856 | |
d62a17ae | 857 | /* Join to multicast group. */ |
045c5389 | 858 | if (rip_multicast_join(ifp, ri->rip->sock) < 0) { |
450971aa | 859 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
860 | "multicast join failed, interface %s not running", |
861 | ifp->name); | |
d62a17ae | 862 | return 0; |
863 | } | |
718e3744 | 864 | |
d62a17ae | 865 | /* Set running flag. */ |
866 | ri->running = 1; | |
867 | ||
868 | /* Send RIP request to the interface. */ | |
869 | rip_request_interface(ifp); | |
870 | ||
871 | return 0; | |
872 | } | |
873 | ||
874 | static void rip_connect_set(struct interface *ifp, int set) | |
875 | { | |
045c5389 RW |
876 | struct rip_interface *ri = ifp->info; |
877 | struct rip *rip = ri->rip; | |
d62a17ae | 878 | struct listnode *node, *nnode; |
879 | struct connected *connected; | |
880 | struct prefix_ipv4 address; | |
3f5682c8 DS |
881 | struct nexthop nh; |
882 | ||
883 | memset(&nh, 0, sizeof(nh)); | |
d62a17ae | 884 | |
885 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
886 | struct prefix *p; | |
887 | p = connected->address; | |
888 | ||
889 | if (p->family != AF_INET) | |
890 | continue; | |
891 | ||
892 | address.family = AF_INET; | |
893 | address.prefix = p->u.prefix4; | |
894 | address.prefixlen = p->prefixlen; | |
895 | apply_mask_ipv4(&address); | |
896 | ||
3f5682c8 DS |
897 | nh.ifindex = connected->ifp->ifindex; |
898 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
d62a17ae | 899 | if (set) { |
900 | /* Check once more wether this prefix is within a | |
901 | * "network IF_OR_PREF" one */ | |
045c5389 RW |
902 | if ((rip_enable_if_lookup(rip, connected->ifp->name) |
903 | >= 0) | |
d62a17ae | 904 | || (rip_enable_network_lookup2(connected) >= 0)) |
045c5389 | 905 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
996c9314 LB |
906 | RIP_ROUTE_INTERFACE, |
907 | &address, &nh, 0, 0, 0); | |
d62a17ae | 908 | } else { |
045c5389 | 909 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, |
d62a17ae | 910 | RIP_ROUTE_INTERFACE, &address, |
911 | connected->ifp->ifindex); | |
045c5389 RW |
912 | if (rip_redistribute_check(rip, ZEBRA_ROUTE_CONNECT)) |
913 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, | |
996c9314 LB |
914 | RIP_ROUTE_REDISTRIBUTE, |
915 | &address, &nh, 0, 0, 0); | |
d62a17ae | 916 | } |
917 | } | |
718e3744 | 918 | } |
919 | ||
920 | /* Update interface status. */ | |
d62a17ae | 921 | void rip_enable_apply(struct interface *ifp) |
718e3744 | 922 | { |
d62a17ae | 923 | int ret; |
924 | struct rip_interface *ri = NULL; | |
718e3744 | 925 | |
d62a17ae | 926 | /* Check interface. */ |
927 | if (!if_is_operative(ifp)) | |
928 | return; | |
718e3744 | 929 | |
d62a17ae | 930 | ri = ifp->info; |
931 | ||
932 | /* Check network configuration. */ | |
933 | ret = rip_enable_network_lookup_if(ifp); | |
934 | ||
935 | /* If the interface is matched. */ | |
936 | if (ret > 0) | |
937 | ri->enable_network = 1; | |
938 | else | |
939 | ri->enable_network = 0; | |
940 | ||
941 | /* Check interface name configuration. */ | |
045c5389 | 942 | ret = rip_enable_if_lookup(ri->rip, ifp->name); |
d62a17ae | 943 | if (ret >= 0) |
944 | ri->enable_interface = 1; | |
945 | else | |
946 | ri->enable_interface = 0; | |
718e3744 | 947 | |
d62a17ae | 948 | /* any interface MUST have an IPv4 address */ |
949 | if (!rip_if_ipv4_address_check(ifp)) { | |
950 | ri->enable_network = 0; | |
951 | ri->enable_interface = 0; | |
718e3744 | 952 | } |
718e3744 | 953 | |
d62a17ae | 954 | /* Update running status of the interface. */ |
955 | if (ri->enable_network || ri->enable_interface) { | |
2e37ad7f RW |
956 | if (IS_RIP_DEBUG_EVENT) |
957 | zlog_debug("turn on %s", ifp->name); | |
958 | ||
959 | /* Add interface wake up thread. */ | |
960 | thread_add_timer(master, rip_interface_wakeup, ifp, 1, | |
961 | &ri->t_wakeup); | |
962 | rip_connect_set(ifp, 1); | |
963 | } else if (ri->running) { | |
964 | /* Might as well clean up the route table as well | |
965 | * rip_if_down sets to 0 ri->running, and displays "turn | |
966 | *off %s" | |
967 | **/ | |
968 | rip_if_down(ifp); | |
d62a17ae | 969 | |
2e37ad7f | 970 | rip_connect_set(ifp, 0); |
718e3744 | 971 | } |
718e3744 | 972 | } |
973 | ||
974 | /* Apply network configuration to all interface. */ | |
045c5389 | 975 | static void rip_enable_apply_all(struct rip *rip) |
718e3744 | 976 | { |
d62a17ae | 977 | struct interface *ifp; |
718e3744 | 978 | |
d62a17ae | 979 | /* Check each interface. */ |
ae7b826a | 980 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 981 | rip_enable_apply(ifp); |
718e3744 | 982 | } |
983 | ||
045c5389 | 984 | int rip_neighbor_lookup(struct rip *rip, struct sockaddr_in *from) |
718e3744 | 985 | { |
d62a17ae | 986 | struct prefix_ipv4 p; |
987 | struct route_node *node; | |
718e3744 | 988 | |
d62a17ae | 989 | memset(&p, 0, sizeof(struct prefix_ipv4)); |
990 | p.family = AF_INET; | |
991 | p.prefix = from->sin_addr; | |
992 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 993 | |
d62a17ae | 994 | node = route_node_lookup(rip->neighbor, (struct prefix *)&p); |
995 | if (node) { | |
996 | route_unlock_node(node); | |
997 | return 1; | |
998 | } | |
999 | return 0; | |
718e3744 | 1000 | } |
1001 | ||
1002 | /* Add new RIP neighbor to the neighbor tree. */ | |
045c5389 | 1003 | int rip_neighbor_add(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 1004 | { |
d62a17ae | 1005 | struct route_node *node; |
718e3744 | 1006 | |
d62a17ae | 1007 | node = route_node_get(rip->neighbor, (struct prefix *)p); |
718e3744 | 1008 | |
d62a17ae | 1009 | if (node->info) |
f0ab22fb | 1010 | return NB_ERR_INCONSISTENCY; |
718e3744 | 1011 | |
d62a17ae | 1012 | node->info = rip->neighbor; |
718e3744 | 1013 | |
f0ab22fb | 1014 | return NB_OK; |
718e3744 | 1015 | } |
1016 | ||
1017 | /* Delete RIP neighbor from the neighbor tree. */ | |
045c5389 | 1018 | int rip_neighbor_delete(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 1019 | { |
d62a17ae | 1020 | struct route_node *node; |
718e3744 | 1021 | |
d62a17ae | 1022 | /* Lock for look up. */ |
1023 | node = route_node_lookup(rip->neighbor, (struct prefix *)p); | |
1024 | if (!node) | |
f0ab22fb | 1025 | return NB_ERR_INCONSISTENCY; |
718e3744 | 1026 | |
d62a17ae | 1027 | node->info = NULL; |
718e3744 | 1028 | |
d62a17ae | 1029 | /* Unlock lookup lock. */ |
1030 | route_unlock_node(node); | |
718e3744 | 1031 | |
d62a17ae | 1032 | /* Unlock real neighbor information lock. */ |
1033 | route_unlock_node(node); | |
1034 | ||
f0ab22fb | 1035 | return NB_OK; |
718e3744 | 1036 | } |
1037 | ||
1038 | /* Clear all network and neighbor configuration. */ | |
045c5389 | 1039 | void rip_clean_network(struct rip *rip) |
d62a17ae | 1040 | { |
1041 | unsigned int i; | |
1042 | char *str; | |
1043 | struct route_node *rn; | |
1044 | ||
1205fdc4 RW |
1045 | /* rip->enable_network. */ |
1046 | for (rn = route_top(rip->enable_network); rn; rn = route_next(rn)) | |
d62a17ae | 1047 | if (rn->info) { |
1048 | rn->info = NULL; | |
1049 | route_unlock_node(rn); | |
1050 | } | |
1051 | ||
ca046902 RW |
1052 | /* rip->enable_interface. */ |
1053 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
1054 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) { | |
03c20031 | 1055 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 1056 | vector_slot(rip->enable_interface, i) = NULL; |
d62a17ae | 1057 | } |
718e3744 | 1058 | } |
6b0655a2 | 1059 | |
718e3744 | 1060 | /* Utility function for looking up passive interface settings. */ |
045c5389 | 1061 | static int rip_passive_nondefault_lookup(struct rip *rip, const char *ifname) |
718e3744 | 1062 | { |
d62a17ae | 1063 | unsigned int i; |
1064 | char *str; | |
718e3744 | 1065 | |
5a29c0d5 RW |
1066 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
1067 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) | |
d62a17ae | 1068 | if (strcmp(str, ifname) == 0) |
1069 | return i; | |
1070 | return -1; | |
718e3744 | 1071 | } |
1072 | ||
045c5389 | 1073 | static void rip_passive_interface_apply(struct interface *ifp) |
718e3744 | 1074 | { |
045c5389 | 1075 | struct rip *rip; |
d62a17ae | 1076 | struct rip_interface *ri; |
718e3744 | 1077 | |
045c5389 RW |
1078 | ri = ifp->info; |
1079 | rip = ri->rip; | |
44f2f852 RW |
1080 | if (rip == NULL) |
1081 | return; | |
1082 | ||
045c5389 | 1083 | ri->passive = ((rip_passive_nondefault_lookup(rip, ifp->name) < 0) |
44f2f852 RW |
1084 | ? rip->passive_default |
1085 | : !rip->passive_default); | |
4aaff3f8 | 1086 | |
d62a17ae | 1087 | if (IS_RIP_DEBUG_ZEBRA) |
1088 | zlog_debug("interface %s: passive = %d", ifp->name, | |
1089 | ri->passive); | |
718e3744 | 1090 | } |
1091 | ||
045c5389 | 1092 | static void rip_passive_interface_apply_all(struct rip *rip) |
718e3744 | 1093 | { |
d62a17ae | 1094 | struct interface *ifp; |
718e3744 | 1095 | |
ae7b826a | 1096 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 1097 | rip_passive_interface_apply(ifp); |
718e3744 | 1098 | } |
1099 | ||
1100 | /* Passive interface. */ | |
045c5389 | 1101 | int rip_passive_nondefault_set(struct rip *rip, const char *ifname) |
718e3744 | 1102 | { |
045c5389 | 1103 | if (rip_passive_nondefault_lookup(rip, ifname) >= 0) |
44f2f852 RW |
1104 | /* |
1105 | * Don't return an error, this can happen after changing | |
1106 | * 'passive-default'. | |
1107 | */ | |
1108 | return NB_OK; | |
718e3744 | 1109 | |
5a29c0d5 | 1110 | vector_set(rip->passive_nondefault, |
03c20031 | 1111 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 1112 | |
045c5389 | 1113 | rip_passive_interface_apply_all(rip); |
718e3744 | 1114 | |
44f2f852 | 1115 | return NB_OK; |
718e3744 | 1116 | } |
1117 | ||
045c5389 | 1118 | int rip_passive_nondefault_unset(struct rip *rip, const char *ifname) |
718e3744 | 1119 | { |
d62a17ae | 1120 | int i; |
1121 | char *str; | |
718e3744 | 1122 | |
045c5389 | 1123 | i = rip_passive_nondefault_lookup(rip, ifname); |
d62a17ae | 1124 | if (i < 0) |
44f2f852 RW |
1125 | /* |
1126 | * Don't return an error, this can happen after changing | |
1127 | * 'passive-default'. | |
1128 | */ | |
1129 | return NB_OK; | |
718e3744 | 1130 | |
5a29c0d5 | 1131 | str = vector_slot(rip->passive_nondefault, i); |
03c20031 | 1132 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1133 | vector_unset(rip->passive_nondefault, i); |
718e3744 | 1134 | |
045c5389 | 1135 | rip_passive_interface_apply_all(rip); |
718e3744 | 1136 | |
44f2f852 | 1137 | return NB_OK; |
718e3744 | 1138 | } |
1139 | ||
1140 | /* Free all configured RIP passive-interface settings. */ | |
045c5389 | 1141 | void rip_passive_nondefault_clean(struct rip *rip) |
718e3744 | 1142 | { |
d62a17ae | 1143 | unsigned int i; |
1144 | char *str; | |
718e3744 | 1145 | |
5a29c0d5 RW |
1146 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
1147 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) { | |
03c20031 | 1148 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1149 | vector_slot(rip->passive_nondefault, i) = NULL; |
d62a17ae | 1150 | } |
045c5389 | 1151 | rip_passive_interface_apply_all(rip); |
718e3744 | 1152 | } |
6b0655a2 | 1153 | |
718e3744 | 1154 | /* Write rip configuration of each interface. */ |
d62a17ae | 1155 | static int rip_interface_config_write(struct vty *vty) |
1156 | { | |
ae7b826a | 1157 | struct vrf *vrf; |
94b117b2 | 1158 | int write = 0; |
d62a17ae | 1159 | |
ae7b826a RW |
1160 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { |
1161 | struct interface *ifp; | |
d62a17ae | 1162 | |
ae7b826a RW |
1163 | FOR_ALL_INTERFACES (vrf, ifp) { |
1164 | struct lyd_node *dnode; | |
1165 | ||
1166 | dnode = yang_dnode_get( | |
1167 | running_config->dnode, | |
1168 | "/frr-interface:lib/interface[name='%s'][vrf='%s']", | |
1169 | ifp->name, vrf->name); | |
1170 | if (dnode == NULL) | |
1171 | continue; | |
d62a17ae | 1172 | |
ae7b826a RW |
1173 | write = 1; |
1174 | nb_cli_show_dnode_cmds(vty, dnode, false); | |
1175 | } | |
d62a17ae | 1176 | } |
94b117b2 RW |
1177 | |
1178 | return write; | |
d62a17ae | 1179 | } |
1180 | ||
045c5389 | 1181 | int rip_show_network_config(struct vty *vty, struct rip *rip) |
d62a17ae | 1182 | { |
1183 | unsigned int i; | |
1184 | char *ifname; | |
1185 | struct route_node *node; | |
1186 | ||
1187 | /* Network type RIP enable interface statement. */ | |
1205fdc4 | 1188 | for (node = route_top(rip->enable_network); node; |
d62a17ae | 1189 | node = route_next(node)) |
1190 | if (node->info) | |
44f2f852 | 1191 | vty_out(vty, " %s/%u\n", |
d62a17ae | 1192 | inet_ntoa(node->p.u.prefix4), |
1193 | node->p.prefixlen); | |
1194 | ||
1195 | /* Interface name RIP enable statement. */ | |
ca046902 RW |
1196 | for (i = 0; i < vector_active(rip->enable_interface); i++) |
1197 | if ((ifname = vector_slot(rip->enable_interface, i)) != NULL) | |
44f2f852 | 1198 | vty_out(vty, " %s\n", ifname); |
d62a17ae | 1199 | |
1200 | /* RIP neighbors listing. */ | |
1201 | for (node = route_top(rip->neighbor); node; node = route_next(node)) | |
1202 | if (node->info) | |
44f2f852 | 1203 | vty_out(vty, " %s\n", inet_ntoa(node->p.u.prefix4)); |
718e3744 | 1204 | |
d62a17ae | 1205 | return 0; |
1206 | } | |
1207 | ||
1208 | static struct cmd_node interface_node = { | |
9d303b37 | 1209 | INTERFACE_NODE, "%s(config-if)# ", 1, |
718e3744 | 1210 | }; |
1211 | ||
ae7b826a RW |
1212 | void rip_interface_sync(struct interface *ifp) |
1213 | { | |
1214 | struct vrf *vrf; | |
1215 | ||
a36898e7 | 1216 | vrf = vrf_lookup_by_id(ifp->vrf_id); |
ae7b826a RW |
1217 | if (vrf) { |
1218 | struct rip_interface *ri; | |
1219 | ||
1220 | ri = ifp->info; | |
1221 | if (ri) | |
1222 | ri->rip = vrf->info; | |
1223 | } | |
1224 | } | |
1225 | ||
718e3744 | 1226 | /* Called when interface structure allocated. */ |
d62a17ae | 1227 | static int rip_interface_new_hook(struct interface *ifp) |
718e3744 | 1228 | { |
d62a17ae | 1229 | ifp->info = rip_interface_new(); |
ae7b826a RW |
1230 | rip_interface_sync(ifp); |
1231 | ||
d62a17ae | 1232 | return 0; |
718e3744 | 1233 | } |
1234 | ||
1235 | /* Called when interface structure deleted. */ | |
d62a17ae | 1236 | static int rip_interface_delete_hook(struct interface *ifp) |
718e3744 | 1237 | { |
72010aca | 1238 | rip_interface_reset(ifp->info); |
d62a17ae | 1239 | XFREE(MTYPE_RIP_INTERFACE, ifp->info); |
1240 | ifp->info = NULL; | |
1241 | return 0; | |
718e3744 | 1242 | } |
1243 | ||
138c5a74 DS |
1244 | static int rip_ifp_down(struct interface *ifp) |
1245 | { | |
1246 | return 0; | |
1247 | } | |
1248 | ||
1249 | static int rip_ifp_destroy(struct interface *ifp) | |
1250 | { | |
1251 | return 0; | |
1252 | } | |
1253 | ||
718e3744 | 1254 | /* Allocate and initialize interface vector. */ |
d62a17ae | 1255 | void rip_if_init(void) |
718e3744 | 1256 | { |
d62a17ae | 1257 | /* Default initial size of interface vector. */ |
ce19a04a DL |
1258 | hook_register_prio(if_add, 0, rip_interface_new_hook); |
1259 | hook_register_prio(if_del, 0, rip_interface_delete_hook); | |
d62a17ae | 1260 | |
d62a17ae | 1261 | /* Install interface node. */ |
1262 | install_node(&interface_node, rip_interface_config_write); | |
1263 | if_cmd_init(); | |
138c5a74 DS |
1264 | if_zapi_callbacks(rip_ifp_create, rip_ifp_up, |
1265 | rip_ifp_down, rip_ifp_destroy); | |
718e3744 | 1266 | } |