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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( | |
3efd0893 | 121 | "Can't setsockopt IP_MULTICAST_IF on fd %d to ifindex %d for interface %s", |
d62a17ae | 122 | sock, connected->ifp->ifindex, connected->ifp->name); |
123 | } | |
4a3867d0 | 124 | |
d62a17ae | 125 | return; |
3fb9cd6e | 126 | } |
718e3744 | 127 | |
128 | /* Send RIP request packet to specified interface. */ | |
d7c0a89a | 129 | static void rip_request_interface_send(struct interface *ifp, uint8_t version) |
718e3744 | 130 | { |
d62a17ae | 131 | struct sockaddr_in to; |
718e3744 | 132 | |
d62a17ae | 133 | /* RIPv2 support multicast. */ |
134 | if (version == RIPv2 && if_is_multicast(ifp)) { | |
718e3744 | 135 | |
d62a17ae | 136 | if (IS_RIP_DEBUG_EVENT) |
137 | zlog_debug("multicast request on %s", ifp->name); | |
718e3744 | 138 | |
d62a17ae | 139 | rip_request_send(NULL, ifp, version, NULL); |
140 | return; | |
141 | } | |
718e3744 | 142 | |
d62a17ae | 143 | /* RIPv1 and non multicast interface. */ |
144 | if (if_is_pointopoint(ifp) || if_is_broadcast(ifp)) { | |
145 | struct listnode *cnode, *cnnode; | |
146 | struct connected *connected; | |
147 | ||
148 | if (IS_RIP_DEBUG_EVENT) | |
149 | zlog_debug("broadcast request to %s", ifp->name); | |
150 | ||
151 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, | |
152 | connected)) { | |
2e37ad7f RW |
153 | if (connected->address->family != AF_INET) |
154 | continue; | |
155 | ||
156 | memset(&to, 0, sizeof(struct sockaddr_in)); | |
157 | to.sin_port = htons(RIP_PORT_DEFAULT); | |
158 | if (connected->destination) | |
159 | /* use specified broadcast or peer | |
160 | * destination addr */ | |
161 | to.sin_addr = connected->destination->u.prefix4; | |
162 | else if (connected->address->prefixlen | |
163 | < IPV4_MAX_PREFIXLEN) | |
164 | /* calculate the appropriate broadcast | |
165 | * address */ | |
166 | to.sin_addr.s_addr = ipv4_broadcast_addr( | |
167 | connected->address->u.prefix4.s_addr, | |
168 | connected->address->prefixlen); | |
169 | else | |
170 | /* do not know where to send the packet | |
171 | */ | |
172 | continue; | |
173 | ||
174 | if (IS_RIP_DEBUG_EVENT) | |
53bb7f9b MS |
175 | zlog_debug("SEND request to %pI4", |
176 | &to.sin_addr); | |
2e37ad7f RW |
177 | |
178 | rip_request_send(&to, ifp, version, connected); | |
d62a17ae | 179 | } |
718e3744 | 180 | } |
718e3744 | 181 | } |
182 | ||
183 | /* This will be executed when interface goes up. */ | |
d62a17ae | 184 | static void rip_request_interface(struct interface *ifp) |
718e3744 | 185 | { |
d62a17ae | 186 | struct rip_interface *ri; |
2e37ad7f | 187 | int vsend; |
718e3744 | 188 | |
d62a17ae | 189 | /* In default ripd doesn't send RIP_REQUEST to the loopback interface. |
190 | */ | |
191 | if (if_is_loopback(ifp)) | |
192 | return; | |
718e3744 | 193 | |
d62a17ae | 194 | /* If interface is down, don't send RIP packet. */ |
195 | if (!if_is_operative(ifp)) | |
196 | return; | |
718e3744 | 197 | |
d62a17ae | 198 | /* Fetch RIP interface information. */ |
199 | ri = ifp->info; | |
718e3744 | 200 | |
d62a17ae | 201 | /* If there is no version configuration in the interface, |
202 | use rip's version setting. */ | |
045c5389 | 203 | vsend = ((ri->ri_send == RI_RIP_UNSPEC) ? ri->rip->version_send |
2e37ad7f RW |
204 | : ri->ri_send); |
205 | if (vsend & RIPv1) | |
206 | rip_request_interface_send(ifp, RIPv1); | |
207 | if (vsend & RIPv2) | |
208 | rip_request_interface_send(ifp, RIPv2); | |
718e3744 | 209 | } |
210 | ||
2c239705 | 211 | #if 0 |
718e3744 | 212 | /* Send RIP request to the neighbor. */ |
dc63bfd4 | 213 | static void |
718e3744 | 214 | rip_request_neighbor (struct in_addr addr) |
215 | { | |
216 | struct sockaddr_in to; | |
217 | ||
0d6f7fd6 | 218 | memset (&to, 0, sizeof(struct sockaddr_in)); |
718e3744 | 219 | to.sin_port = htons (RIP_PORT_DEFAULT); |
220 | to.sin_addr = addr; | |
221 | ||
931cd54d | 222 | rip_request_send (&to, NULL, rip->version_send, NULL); |
718e3744 | 223 | } |
224 | ||
225 | /* Request routes at all interfaces. */ | |
dc63bfd4 | 226 | static void |
227 | rip_request_neighbor_all (void) | |
718e3744 | 228 | { |
229 | struct route_node *rp; | |
230 | ||
231 | if (! rip) | |
232 | return; | |
233 | ||
234 | if (IS_RIP_DEBUG_EVENT) | |
5d6c3779 | 235 | zlog_debug ("request to the all neighbor"); |
718e3744 | 236 | |
237 | /* Send request to all neighbor. */ | |
238 | for (rp = route_top (rip->neighbor); rp; rp = route_next (rp)) | |
239 | if (rp->info) | |
240 | rip_request_neighbor (rp->p.u.prefix4); | |
241 | } | |
2c239705 | 242 | #endif |
718e3744 | 243 | |
244 | /* Multicast packet receive socket. */ | |
d62a17ae | 245 | static int rip_multicast_join(struct interface *ifp, int sock) |
718e3744 | 246 | { |
d62a17ae | 247 | struct listnode *cnode; |
248 | struct connected *ifc; | |
718e3744 | 249 | |
d62a17ae | 250 | if (if_is_operative(ifp) && if_is_multicast(ifp)) { |
251 | if (IS_RIP_DEBUG_EVENT) | |
252 | zlog_debug("multicast join at %s", ifp->name); | |
718e3744 | 253 | |
d62a17ae | 254 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, ifc)) { |
255 | struct prefix_ipv4 *p; | |
256 | struct in_addr group; | |
257 | ||
258 | p = (struct prefix_ipv4 *)ifc->address; | |
259 | ||
260 | if (p->family != AF_INET) | |
261 | continue; | |
262 | ||
263 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
264 | if (ipv4_multicast_join(sock, group, p->prefix, | |
265 | ifp->ifindex) | |
266 | < 0) | |
267 | return -1; | |
268 | else | |
269 | return 0; | |
270 | } | |
718e3744 | 271 | } |
d62a17ae | 272 | return 0; |
718e3744 | 273 | } |
274 | ||
275 | /* Leave from multicast group. */ | |
d62a17ae | 276 | static void rip_multicast_leave(struct interface *ifp, int sock) |
718e3744 | 277 | { |
d62a17ae | 278 | struct listnode *cnode; |
279 | struct connected *connected; | |
718e3744 | 280 | |
d62a17ae | 281 | if (if_is_up(ifp) && if_is_multicast(ifp)) { |
282 | if (IS_RIP_DEBUG_EVENT) | |
283 | zlog_debug("multicast leave from %s", ifp->name); | |
718e3744 | 284 | |
d62a17ae | 285 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
286 | struct prefix_ipv4 *p; | |
287 | struct in_addr group; | |
288 | ||
289 | p = (struct prefix_ipv4 *)connected->address; | |
290 | ||
291 | if (p->family != AF_INET) | |
292 | continue; | |
293 | ||
294 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
295 | if (ipv4_multicast_leave(sock, group, p->prefix, | |
296 | ifp->ifindex) | |
297 | == 0) | |
298 | return; | |
299 | } | |
300 | } | |
718e3744 | 301 | } |
302 | ||
303 | /* Is there and address on interface that I could use ? */ | |
d62a17ae | 304 | static int rip_if_ipv4_address_check(struct interface *ifp) |
718e3744 | 305 | { |
d62a17ae | 306 | struct listnode *nn; |
307 | struct connected *connected; | |
308 | int count = 0; | |
718e3744 | 309 | |
d62a17ae | 310 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, nn, connected)) { |
311 | struct prefix *p; | |
718e3744 | 312 | |
d62a17ae | 313 | p = connected->address; |
314 | ||
315 | if (p->family == AF_INET) | |
316 | count++; | |
317 | } | |
718e3744 | 318 | |
d62a17ae | 319 | return count; |
718e3744 | 320 | } |
d62a17ae | 321 | |
31a476c7 | 322 | |
323 | /* Does this address belongs to me ? */ | |
045c5389 | 324 | int if_check_address(struct rip *rip, struct in_addr addr) |
d62a17ae | 325 | { |
d62a17ae | 326 | struct interface *ifp; |
31a476c7 | 327 | |
ae7b826a | 328 | FOR_ALL_INTERFACES (rip->vrf, ifp) { |
d62a17ae | 329 | struct listnode *cnode; |
330 | struct connected *connected; | |
31a476c7 | 331 | |
d62a17ae | 332 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
333 | struct prefix_ipv4 *p; | |
31a476c7 | 334 | |
d62a17ae | 335 | p = (struct prefix_ipv4 *)connected->address; |
336 | ||
337 | if (p->family != AF_INET) | |
338 | continue; | |
339 | ||
340 | if (IPV4_ADDR_CMP(&p->prefix, &addr) == 0) | |
341 | return 1; | |
342 | } | |
31a476c7 | 343 | } |
d62a17ae | 344 | return 0; |
31a476c7 | 345 | } |
346 | ||
718e3744 | 347 | /* Inteface link down message processing. */ |
b0b69e59 | 348 | static int rip_ifp_down(struct interface *ifp) |
718e3744 | 349 | { |
ae7b826a | 350 | rip_interface_sync(ifp); |
d62a17ae | 351 | rip_if_down(ifp); |
718e3744 | 352 | |
5434aac4 DS |
353 | if (IS_RIP_DEBUG_ZEBRA) { |
354 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
355 | ||
d62a17ae | 356 | zlog_debug( |
5434aac4 DS |
357 | "interface %s vrf %s(%u) index %d flags %llx metric %d mtu %d is down", |
358 | ifp->name, VRF_LOGNAME(vrf), ifp->vrf_id, ifp->ifindex, | |
ae7b826a | 359 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
5434aac4 | 360 | } |
d62a17ae | 361 | |
362 | return 0; | |
718e3744 | 363 | } |
364 | ||
365 | /* Inteface link up message processing */ | |
ddbf3e60 | 366 | static int rip_ifp_up(struct interface *ifp) |
718e3744 | 367 | { |
5434aac4 DS |
368 | if (IS_RIP_DEBUG_ZEBRA) { |
369 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
370 | ||
d62a17ae | 371 | zlog_debug( |
5434aac4 DS |
372 | "interface %s vrf %s(%u) index %d flags %#llx metric %d mtu %d is up", |
373 | ifp->name, VRF_LOGNAME(vrf), ifp->vrf_id, ifp->ifindex, | |
ae7b826a | 374 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
5434aac4 | 375 | } |
ae7b826a RW |
376 | |
377 | rip_interface_sync(ifp); | |
718e3744 | 378 | |
d62a17ae | 379 | /* Check if this interface is RIP enabled or not.*/ |
380 | rip_enable_apply(ifp); | |
718e3744 | 381 | |
d62a17ae | 382 | /* Check for a passive interface */ |
383 | rip_passive_interface_apply(ifp); | |
718e3744 | 384 | |
d62a17ae | 385 | /* Apply distribute list to the all interface. */ |
386 | rip_distribute_update_interface(ifp); | |
718e3744 | 387 | |
d62a17ae | 388 | return 0; |
718e3744 | 389 | } |
390 | ||
391 | /* Inteface addition message from zebra. */ | |
ef7bd2a3 | 392 | static int rip_ifp_create(struct interface *ifp) |
718e3744 | 393 | { |
ae7b826a | 394 | rip_interface_sync(ifp); |
718e3744 | 395 | |
5434aac4 DS |
396 | if (IS_RIP_DEBUG_ZEBRA) { |
397 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
d62a17ae | 398 | zlog_debug( |
5434aac4 DS |
399 | "interface add %s vrf %s(%u) index %d flags %#llx metric %d mtu %d", |
400 | ifp->name, VRF_LOGNAME(vrf), ifp->vrf_id, ifp->ifindex, | |
ae7b826a | 401 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
5434aac4 | 402 | } |
718e3744 | 403 | |
d62a17ae | 404 | /* Check if this interface is RIP enabled or not.*/ |
405 | rip_enable_apply(ifp); | |
718e3744 | 406 | |
d62a17ae | 407 | /* Check for a passive interface */ |
408 | rip_passive_interface_apply(ifp); | |
718e3744 | 409 | |
d62a17ae | 410 | /* Apply distribute list to the all interface. */ |
411 | rip_distribute_update_interface(ifp); | |
718e3744 | 412 | |
d62a17ae | 413 | /* rip_request_neighbor_all (); */ |
16705130 | 414 | |
d62a17ae | 415 | /* Check interface routemap. */ |
416 | rip_if_rmap_update_interface(ifp); | |
417 | ||
418 | return 0; | |
718e3744 | 419 | } |
420 | ||
3c3c3252 | 421 | static int rip_ifp_destroy(struct interface *ifp) |
718e3744 | 422 | { |
5434aac4 DS |
423 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
424 | ||
ae7b826a | 425 | rip_interface_sync(ifp); |
d62a17ae | 426 | if (if_is_up(ifp)) { |
427 | rip_if_down(ifp); | |
428 | } | |
718e3744 | 429 | |
13c5f95e DS |
430 | if (IS_RIP_DEBUG_ZEBRA) |
431 | zlog_debug( | |
432 | "interface delete %s vrf %s(%u) index %d flags %#llx metric %d mtu %d", | |
433 | ifp->name, VRF_LOGNAME(vrf), ifp->vrf_id, ifp->ifindex, | |
434 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); | |
718e3744 | 435 | |
d62a17ae | 436 | return 0; |
718e3744 | 437 | } |
438 | ||
ae7b826a | 439 | /* VRF update for an interface. */ |
121f9dee | 440 | int rip_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
ae7b826a RW |
441 | { |
442 | struct interface *ifp; | |
443 | vrf_id_t new_vrf_id; | |
444 | ||
445 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, | |
446 | &new_vrf_id); | |
447 | if (!ifp) | |
448 | return 0; | |
449 | ||
5434aac4 DS |
450 | if (IS_RIP_DEBUG_ZEBRA) { |
451 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
452 | struct vrf *nvrf = vrf_lookup_by_id(new_vrf_id); | |
453 | ||
454 | zlog_debug("interface %s VRF change vrf %s(%u) new vrf %s(%u)", | |
455 | ifp->name, VRF_LOGNAME(vrf), vrf_id, | |
456 | VRF_LOGNAME(nvrf), new_vrf_id); | |
457 | } | |
ae7b826a | 458 | |
a36898e7 | 459 | if_update_to_new_vrf(ifp, new_vrf_id); |
ae7b826a RW |
460 | rip_interface_sync(ifp); |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
d62a17ae | 465 | static void rip_interface_clean(struct rip_interface *ri) |
4305dfd1 | 466 | { |
d62a17ae | 467 | ri->enable_network = 0; |
468 | ri->enable_interface = 0; | |
469 | ri->running = 0; | |
718e3744 | 470 | |
b3d6bc6e | 471 | thread_cancel(&ri->t_wakeup); |
4305dfd1 | 472 | } |
718e3744 | 473 | |
045c5389 | 474 | void rip_interfaces_clean(struct rip *rip) |
718e3744 | 475 | { |
d62a17ae | 476 | struct interface *ifp; |
718e3744 | 477 | |
ae7b826a | 478 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 479 | rip_interface_clean(ifp->info); |
1dec2166 | 480 | } |
718e3744 | 481 | |
d62a17ae | 482 | static void rip_interface_reset(struct rip_interface *ri) |
4305dfd1 | 483 | { |
94b117b2 RW |
484 | ri->auth_type = yang_get_default_enum("%s/authentication-scheme/mode", |
485 | RIP_IFACE); | |
486 | ri->md5_auth_len = yang_get_default_enum( | |
487 | "%s/authentication-scheme/md5-auth-length", RIP_IFACE); | |
718e3744 | 488 | |
d62a17ae | 489 | /* Set default split-horizon behavior. If the interface is Frame |
490 | Relay or SMDS is enabled, the default value for split-horizon is | |
491 | off. But currently Zebra does detect Frame Relay or SMDS | |
492 | interface. So all interface is set to split horizon. */ | |
94b117b2 RW |
493 | ri->split_horizon = |
494 | yang_get_default_enum("%s/split-horizon", RIP_IFACE); | |
718e3744 | 495 | |
94b117b2 RW |
496 | ri->ri_send = yang_get_default_enum("%s/version-send", RIP_IFACE); |
497 | ri->ri_receive = yang_get_default_enum("%s/version-receive", RIP_IFACE); | |
498 | ri->v2_broadcast = yang_get_default_bool("%s/v2-broadcast", RIP_IFACE); | |
f90310cf | 499 | |
0a22ddfb | 500 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->auth_str); |
03c20031 | 501 | |
0a22ddfb | 502 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->key_chain); |
03c20031 | 503 | |
d62a17ae | 504 | ri->list[RIP_FILTER_IN] = NULL; |
505 | ri->list[RIP_FILTER_OUT] = NULL; | |
718e3744 | 506 | |
d62a17ae | 507 | ri->prefix[RIP_FILTER_IN] = NULL; |
508 | ri->prefix[RIP_FILTER_OUT] = NULL; | |
718e3744 | 509 | |
d62a17ae | 510 | ri->recv_badpackets = 0; |
511 | ri->recv_badroutes = 0; | |
512 | ri->sent_updates = 0; | |
4305dfd1 | 513 | |
d62a17ae | 514 | ri->passive = 0; |
718e3744 | 515 | |
d62a17ae | 516 | rip_interface_clean(ri); |
4305dfd1 | 517 | } |
718e3744 | 518 | |
d62a17ae | 519 | int rip_if_down(struct interface *ifp) |
718e3744 | 520 | { |
045c5389 | 521 | struct rip *rip; |
d62a17ae | 522 | struct route_node *rp; |
523 | struct rip_info *rinfo; | |
524 | struct rip_interface *ri = NULL; | |
525 | struct list *list = NULL; | |
526 | struct listnode *listnode = NULL, *nextnode = NULL; | |
045c5389 RW |
527 | |
528 | ri = ifp->info; | |
529 | rip = ri->rip; | |
d62a17ae | 530 | if (rip) { |
531 | for (rp = route_top(rip->table); rp; rp = route_next(rp)) | |
532 | if ((list = rp->info) != NULL) | |
533 | for (ALL_LIST_ELEMENTS(list, listnode, nextnode, | |
534 | rinfo)) | |
dd127197 | 535 | if (rinfo->nh.ifindex == ifp->ifindex) |
045c5389 | 536 | rip_ecmp_delete(rip, rinfo); |
d62a17ae | 537 | |
538 | if (ri->running) { | |
539 | if (IS_RIP_DEBUG_EVENT) | |
540 | zlog_debug("turn off %s", ifp->name); | |
541 | ||
542 | /* Leave from multicast group. */ | |
543 | rip_multicast_leave(ifp, rip->sock); | |
544 | ||
545 | ri->running = 0; | |
546 | } | |
547 | } | |
548 | ||
549 | return 0; | |
718e3744 | 550 | } |
551 | ||
d62a17ae | 552 | static void rip_apply_address_add(struct connected *ifc) |
dc63bfd4 | 553 | { |
045c5389 RW |
554 | struct rip_interface *ri = ifc->ifp->info; |
555 | struct rip *rip = ri->rip; | |
d62a17ae | 556 | struct prefix_ipv4 address; |
3f5682c8 | 557 | struct nexthop nh; |
d62a17ae | 558 | struct prefix *p; |
16705130 | 559 | |
d62a17ae | 560 | if (!rip) |
561 | return; | |
16705130 | 562 | |
d62a17ae | 563 | if (!if_is_up(ifc->ifp)) |
564 | return; | |
16705130 | 565 | |
d62a17ae | 566 | p = ifc->address; |
16705130 | 567 | |
d62a17ae | 568 | memset(&address, 0, sizeof(address)); |
3f5682c8 DS |
569 | memset(&nh, 0, sizeof(nh)); |
570 | ||
d62a17ae | 571 | address.family = p->family; |
572 | address.prefix = p->u.prefix4; | |
573 | address.prefixlen = p->prefixlen; | |
574 | apply_mask_ipv4(&address); | |
16705130 | 575 | |
3f5682c8 DS |
576 | nh.ifindex = ifc->ifp->ifindex; |
577 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
578 | ||
d62a17ae | 579 | /* Check if this interface is RIP enabled or not |
580 | or Check if this address's prefix is RIP enabled */ | |
045c5389 | 581 | if ((rip_enable_if_lookup(rip, ifc->ifp->name) >= 0) |
d62a17ae | 582 | || (rip_enable_network_lookup2(ifc) >= 0)) |
045c5389 RW |
583 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
584 | RIP_ROUTE_INTERFACE, &address, &nh, 0, 0, | |
585 | 0); | |
16705130 | 586 | } |
587 | ||
121f9dee | 588 | int rip_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 589 | { |
d62a17ae | 590 | struct connected *ifc; |
591 | struct prefix *p; | |
718e3744 | 592 | |
d62a17ae | 593 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, |
594 | zclient->ibuf, vrf_id); | |
718e3744 | 595 | |
d62a17ae | 596 | if (ifc == NULL) |
597 | return 0; | |
718e3744 | 598 | |
d62a17ae | 599 | p = ifc->address; |
718e3744 | 600 | |
d62a17ae | 601 | if (p->family == AF_INET) { |
602 | if (IS_RIP_DEBUG_ZEBRA) | |
f42238f8 | 603 | zlog_debug("connected address %pFX is added", p); |
16705130 | 604 | |
d62a17ae | 605 | rip_enable_apply(ifc->ifp); |
606 | /* Check if this prefix needs to be redistributed */ | |
607 | rip_apply_address_add(ifc); | |
718e3744 | 608 | |
d62a17ae | 609 | hook_call(rip_ifaddr_add, ifc); |
610 | } | |
718e3744 | 611 | |
d62a17ae | 612 | return 0; |
718e3744 | 613 | } |
614 | ||
d62a17ae | 615 | static void rip_apply_address_del(struct connected *ifc) |
616 | { | |
045c5389 RW |
617 | struct rip_interface *ri = ifc->ifp->info; |
618 | struct rip *rip = ri->rip; | |
d62a17ae | 619 | struct prefix_ipv4 address; |
620 | struct prefix *p; | |
16705130 | 621 | |
d62a17ae | 622 | if (!rip) |
623 | return; | |
16705130 | 624 | |
d62a17ae | 625 | if (!if_is_up(ifc->ifp)) |
626 | return; | |
16705130 | 627 | |
d62a17ae | 628 | p = ifc->address; |
16705130 | 629 | |
d62a17ae | 630 | memset(&address, 0, sizeof(address)); |
631 | address.family = p->family; | |
632 | address.prefix = p->u.prefix4; | |
633 | address.prefixlen = p->prefixlen; | |
634 | apply_mask_ipv4(&address); | |
16705130 | 635 | |
045c5389 | 636 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, |
d62a17ae | 637 | &address, ifc->ifp->ifindex); |
16705130 | 638 | } |
639 | ||
121f9dee | 640 | int rip_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 641 | { |
d62a17ae | 642 | struct connected *ifc; |
643 | struct prefix *p; | |
718e3744 | 644 | |
d62a17ae | 645 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, |
646 | zclient->ibuf, vrf_id); | |
718e3744 | 647 | |
d62a17ae | 648 | if (ifc) { |
649 | p = ifc->address; | |
650 | if (p->family == AF_INET) { | |
651 | if (IS_RIP_DEBUG_ZEBRA) | |
f42238f8 DS |
652 | zlog_debug("connected address %pFX is deleted", |
653 | p); | |
16705130 | 654 | |
d62a17ae | 655 | hook_call(rip_ifaddr_del, ifc); |
718e3744 | 656 | |
d62a17ae | 657 | /* Chech wether this prefix needs to be removed */ |
658 | rip_apply_address_del(ifc); | |
659 | } | |
718e3744 | 660 | |
721c0857 | 661 | connected_free(&ifc); |
d62a17ae | 662 | } |
718e3744 | 663 | |
d62a17ae | 664 | return 0; |
718e3744 | 665 | } |
6b0655a2 | 666 | |
718e3744 | 667 | /* Check interface is enabled by network statement. */ |
16705130 | 668 | /* Check wether the interface has at least a connected prefix that |
669 | * is within the ripng_enable_network table. */ | |
d62a17ae | 670 | static int rip_enable_network_lookup_if(struct interface *ifp) |
671 | { | |
045c5389 RW |
672 | struct rip_interface *ri = ifp->info; |
673 | struct rip *rip = ri->rip; | |
d62a17ae | 674 | struct listnode *node, *nnode; |
675 | struct connected *connected; | |
676 | struct prefix_ipv4 address; | |
677 | ||
1205fdc4 RW |
678 | if (!rip) |
679 | return -1; | |
680 | ||
d62a17ae | 681 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { |
682 | struct prefix *p; | |
dc7204b7 | 683 | struct route_node *n; |
d62a17ae | 684 | |
685 | p = connected->address; | |
686 | ||
687 | if (p->family == AF_INET) { | |
688 | address.family = AF_INET; | |
689 | address.prefix = p->u.prefix4; | |
690 | address.prefixlen = IPV4_MAX_BITLEN; | |
691 | ||
1205fdc4 | 692 | n = route_node_match(rip->enable_network, |
dc7204b7 A |
693 | (struct prefix *)&address); |
694 | if (n) { | |
695 | route_unlock_node(n); | |
d62a17ae | 696 | return 1; |
697 | } | |
698 | } | |
699 | } | |
700 | return -1; | |
718e3744 | 701 | } |
702 | ||
16705130 | 703 | /* Check wether connected is within the ripng_enable_network table. */ |
045c5389 | 704 | static int rip_enable_network_lookup2(struct connected *connected) |
16705130 | 705 | { |
045c5389 RW |
706 | struct rip_interface *ri = connected->ifp->info; |
707 | struct rip *rip = ri->rip; | |
d62a17ae | 708 | struct prefix_ipv4 address; |
709 | struct prefix *p; | |
16705130 | 710 | |
d62a17ae | 711 | p = connected->address; |
16705130 | 712 | |
d62a17ae | 713 | if (p->family == AF_INET) { |
714 | struct route_node *node; | |
16705130 | 715 | |
d62a17ae | 716 | address.family = p->family; |
717 | address.prefix = p->u.prefix4; | |
718 | address.prefixlen = IPV4_MAX_BITLEN; | |
16705130 | 719 | |
d62a17ae | 720 | /* LPM on p->family, p->u.prefix4/IPV4_MAX_BITLEN within |
1205fdc4 RW |
721 | * rip->enable_network */ |
722 | node = route_node_match(rip->enable_network, | |
d62a17ae | 723 | (struct prefix *)&address); |
16705130 | 724 | |
d62a17ae | 725 | if (node) { |
726 | route_unlock_node(node); | |
727 | return 1; | |
728 | } | |
729 | } | |
16705130 | 730 | |
d62a17ae | 731 | return -1; |
16705130 | 732 | } |
718e3744 | 733 | /* Add RIP enable network. */ |
045c5389 | 734 | int rip_enable_network_add(struct rip *rip, struct prefix *p) |
718e3744 | 735 | { |
d62a17ae | 736 | struct route_node *node; |
718e3744 | 737 | |
1205fdc4 | 738 | node = route_node_get(rip->enable_network, p); |
718e3744 | 739 | |
d62a17ae | 740 | if (node->info) { |
741 | route_unlock_node(node); | |
3d7a1be8 | 742 | return NB_ERR_INCONSISTENCY; |
d62a17ae | 743 | } else |
744 | node->info = (void *)1; | |
718e3744 | 745 | |
d62a17ae | 746 | /* XXX: One should find a better solution than a generic one */ |
045c5389 | 747 | rip_enable_apply_all(rip); |
16705130 | 748 | |
3d7a1be8 | 749 | return NB_OK; |
718e3744 | 750 | } |
751 | ||
752 | /* Delete RIP enable network. */ | |
045c5389 | 753 | int rip_enable_network_delete(struct rip *rip, struct prefix *p) |
718e3744 | 754 | { |
d62a17ae | 755 | struct route_node *node; |
718e3744 | 756 | |
1205fdc4 | 757 | node = route_node_lookup(rip->enable_network, p); |
d62a17ae | 758 | if (node) { |
759 | node->info = NULL; | |
718e3744 | 760 | |
d62a17ae | 761 | /* Unlock info lock. */ |
762 | route_unlock_node(node); | |
718e3744 | 763 | |
d62a17ae | 764 | /* Unlock lookup lock. */ |
765 | route_unlock_node(node); | |
718e3744 | 766 | |
d62a17ae | 767 | /* XXX: One should find a better solution than a generic one */ |
045c5389 | 768 | rip_enable_apply_all(rip); |
16705130 | 769 | |
3d7a1be8 | 770 | return NB_OK; |
d62a17ae | 771 | } |
3d7a1be8 RW |
772 | |
773 | return NB_ERR_INCONSISTENCY; | |
718e3744 | 774 | } |
775 | ||
776 | /* Check interface is enabled by ifname statement. */ | |
045c5389 | 777 | static int rip_enable_if_lookup(struct rip *rip, const char *ifname) |
718e3744 | 778 | { |
d62a17ae | 779 | unsigned int i; |
780 | char *str; | |
718e3744 | 781 | |
ca046902 RW |
782 | if (!rip) |
783 | return -1; | |
784 | ||
785 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
786 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) | |
d62a17ae | 787 | if (strcmp(str, ifname) == 0) |
788 | return i; | |
789 | return -1; | |
718e3744 | 790 | } |
791 | ||
792 | /* Add interface to rip_enable_if. */ | |
045c5389 | 793 | int rip_enable_if_add(struct rip *rip, const char *ifname) |
718e3744 | 794 | { |
d62a17ae | 795 | int ret; |
718e3744 | 796 | |
045c5389 | 797 | ret = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 798 | if (ret >= 0) |
3d7a1be8 | 799 | return NB_ERR_INCONSISTENCY; |
718e3744 | 800 | |
ca046902 | 801 | vector_set(rip->enable_interface, |
03c20031 | 802 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 803 | |
045c5389 | 804 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 805 | |
3d7a1be8 | 806 | return NB_OK; |
718e3744 | 807 | } |
808 | ||
809 | /* Delete interface from rip_enable_if. */ | |
045c5389 | 810 | int rip_enable_if_delete(struct rip *rip, const char *ifname) |
718e3744 | 811 | { |
d62a17ae | 812 | int index; |
813 | char *str; | |
718e3744 | 814 | |
045c5389 | 815 | index = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 816 | if (index < 0) |
3d7a1be8 | 817 | return NB_ERR_INCONSISTENCY; |
718e3744 | 818 | |
ca046902 | 819 | str = vector_slot(rip->enable_interface, index); |
03c20031 | 820 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 821 | vector_unset(rip->enable_interface, index); |
718e3744 | 822 | |
045c5389 | 823 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 824 | |
3d7a1be8 | 825 | return NB_OK; |
718e3744 | 826 | } |
827 | ||
828 | /* Join to multicast group and send request to the interface. */ | |
d62a17ae | 829 | static int rip_interface_wakeup(struct thread *t) |
718e3744 | 830 | { |
d62a17ae | 831 | struct interface *ifp; |
832 | struct rip_interface *ri; | |
718e3744 | 833 | |
d62a17ae | 834 | /* Get interface. */ |
835 | ifp = THREAD_ARG(t); | |
718e3744 | 836 | |
d62a17ae | 837 | ri = ifp->info; |
838 | ri->t_wakeup = NULL; | |
718e3744 | 839 | |
d62a17ae | 840 | /* Join to multicast group. */ |
045c5389 | 841 | if (rip_multicast_join(ifp, ri->rip->sock) < 0) { |
450971aa | 842 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
843 | "multicast join failed, interface %s not running", |
844 | ifp->name); | |
d62a17ae | 845 | return 0; |
846 | } | |
718e3744 | 847 | |
d62a17ae | 848 | /* Set running flag. */ |
849 | ri->running = 1; | |
850 | ||
851 | /* Send RIP request to the interface. */ | |
852 | rip_request_interface(ifp); | |
853 | ||
854 | return 0; | |
855 | } | |
856 | ||
857 | static void rip_connect_set(struct interface *ifp, int set) | |
858 | { | |
045c5389 RW |
859 | struct rip_interface *ri = ifp->info; |
860 | struct rip *rip = ri->rip; | |
d62a17ae | 861 | struct listnode *node, *nnode; |
862 | struct connected *connected; | |
863 | struct prefix_ipv4 address; | |
3f5682c8 DS |
864 | struct nexthop nh; |
865 | ||
866 | memset(&nh, 0, sizeof(nh)); | |
d62a17ae | 867 | |
868 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
869 | struct prefix *p; | |
870 | p = connected->address; | |
871 | ||
872 | if (p->family != AF_INET) | |
873 | continue; | |
874 | ||
875 | address.family = AF_INET; | |
876 | address.prefix = p->u.prefix4; | |
877 | address.prefixlen = p->prefixlen; | |
878 | apply_mask_ipv4(&address); | |
879 | ||
3f5682c8 DS |
880 | nh.ifindex = connected->ifp->ifindex; |
881 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
d62a17ae | 882 | if (set) { |
883 | /* Check once more wether this prefix is within a | |
884 | * "network IF_OR_PREF" one */ | |
045c5389 RW |
885 | if ((rip_enable_if_lookup(rip, connected->ifp->name) |
886 | >= 0) | |
d62a17ae | 887 | || (rip_enable_network_lookup2(connected) >= 0)) |
045c5389 | 888 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
996c9314 LB |
889 | RIP_ROUTE_INTERFACE, |
890 | &address, &nh, 0, 0, 0); | |
d62a17ae | 891 | } else { |
045c5389 | 892 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, |
d62a17ae | 893 | RIP_ROUTE_INTERFACE, &address, |
894 | connected->ifp->ifindex); | |
045c5389 RW |
895 | if (rip_redistribute_check(rip, ZEBRA_ROUTE_CONNECT)) |
896 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, | |
996c9314 LB |
897 | RIP_ROUTE_REDISTRIBUTE, |
898 | &address, &nh, 0, 0, 0); | |
d62a17ae | 899 | } |
900 | } | |
718e3744 | 901 | } |
902 | ||
903 | /* Update interface status. */ | |
d62a17ae | 904 | void rip_enable_apply(struct interface *ifp) |
718e3744 | 905 | { |
d62a17ae | 906 | int ret; |
907 | struct rip_interface *ri = NULL; | |
718e3744 | 908 | |
d62a17ae | 909 | /* Check interface. */ |
910 | if (!if_is_operative(ifp)) | |
911 | return; | |
718e3744 | 912 | |
d62a17ae | 913 | ri = ifp->info; |
914 | ||
915 | /* Check network configuration. */ | |
916 | ret = rip_enable_network_lookup_if(ifp); | |
917 | ||
918 | /* If the interface is matched. */ | |
919 | if (ret > 0) | |
920 | ri->enable_network = 1; | |
921 | else | |
922 | ri->enable_network = 0; | |
923 | ||
924 | /* Check interface name configuration. */ | |
045c5389 | 925 | ret = rip_enable_if_lookup(ri->rip, ifp->name); |
d62a17ae | 926 | if (ret >= 0) |
927 | ri->enable_interface = 1; | |
928 | else | |
929 | ri->enable_interface = 0; | |
718e3744 | 930 | |
d62a17ae | 931 | /* any interface MUST have an IPv4 address */ |
932 | if (!rip_if_ipv4_address_check(ifp)) { | |
933 | ri->enable_network = 0; | |
934 | ri->enable_interface = 0; | |
718e3744 | 935 | } |
718e3744 | 936 | |
d62a17ae | 937 | /* Update running status of the interface. */ |
938 | if (ri->enable_network || ri->enable_interface) { | |
2e37ad7f RW |
939 | if (IS_RIP_DEBUG_EVENT) |
940 | zlog_debug("turn on %s", ifp->name); | |
941 | ||
942 | /* Add interface wake up thread. */ | |
943 | thread_add_timer(master, rip_interface_wakeup, ifp, 1, | |
944 | &ri->t_wakeup); | |
945 | rip_connect_set(ifp, 1); | |
946 | } else if (ri->running) { | |
947 | /* Might as well clean up the route table as well | |
948 | * rip_if_down sets to 0 ri->running, and displays "turn | |
949 | *off %s" | |
950 | **/ | |
951 | rip_if_down(ifp); | |
d62a17ae | 952 | |
2e37ad7f | 953 | rip_connect_set(ifp, 0); |
718e3744 | 954 | } |
718e3744 | 955 | } |
956 | ||
957 | /* Apply network configuration to all interface. */ | |
045c5389 | 958 | static void rip_enable_apply_all(struct rip *rip) |
718e3744 | 959 | { |
d62a17ae | 960 | struct interface *ifp; |
718e3744 | 961 | |
d62a17ae | 962 | /* Check each interface. */ |
ae7b826a | 963 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 964 | rip_enable_apply(ifp); |
718e3744 | 965 | } |
966 | ||
045c5389 | 967 | int rip_neighbor_lookup(struct rip *rip, struct sockaddr_in *from) |
718e3744 | 968 | { |
d62a17ae | 969 | struct prefix_ipv4 p; |
970 | struct route_node *node; | |
718e3744 | 971 | |
d62a17ae | 972 | memset(&p, 0, sizeof(struct prefix_ipv4)); |
973 | p.family = AF_INET; | |
974 | p.prefix = from->sin_addr; | |
975 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 976 | |
d62a17ae | 977 | node = route_node_lookup(rip->neighbor, (struct prefix *)&p); |
978 | if (node) { | |
979 | route_unlock_node(node); | |
980 | return 1; | |
981 | } | |
982 | return 0; | |
718e3744 | 983 | } |
984 | ||
985 | /* Add new RIP neighbor to the neighbor tree. */ | |
045c5389 | 986 | int rip_neighbor_add(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 987 | { |
d62a17ae | 988 | struct route_node *node; |
718e3744 | 989 | |
d62a17ae | 990 | node = route_node_get(rip->neighbor, (struct prefix *)p); |
718e3744 | 991 | |
d62a17ae | 992 | if (node->info) |
f0ab22fb | 993 | return NB_ERR_INCONSISTENCY; |
718e3744 | 994 | |
d62a17ae | 995 | node->info = rip->neighbor; |
718e3744 | 996 | |
f0ab22fb | 997 | return NB_OK; |
718e3744 | 998 | } |
999 | ||
1000 | /* Delete RIP neighbor from the neighbor tree. */ | |
045c5389 | 1001 | int rip_neighbor_delete(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 1002 | { |
d62a17ae | 1003 | struct route_node *node; |
718e3744 | 1004 | |
d62a17ae | 1005 | /* Lock for look up. */ |
1006 | node = route_node_lookup(rip->neighbor, (struct prefix *)p); | |
1007 | if (!node) | |
f0ab22fb | 1008 | return NB_ERR_INCONSISTENCY; |
718e3744 | 1009 | |
d62a17ae | 1010 | node->info = NULL; |
718e3744 | 1011 | |
d62a17ae | 1012 | /* Unlock lookup lock. */ |
1013 | route_unlock_node(node); | |
718e3744 | 1014 | |
d62a17ae | 1015 | /* Unlock real neighbor information lock. */ |
1016 | route_unlock_node(node); | |
1017 | ||
f0ab22fb | 1018 | return NB_OK; |
718e3744 | 1019 | } |
1020 | ||
1021 | /* Clear all network and neighbor configuration. */ | |
045c5389 | 1022 | void rip_clean_network(struct rip *rip) |
d62a17ae | 1023 | { |
1024 | unsigned int i; | |
1025 | char *str; | |
1026 | struct route_node *rn; | |
1027 | ||
1205fdc4 RW |
1028 | /* rip->enable_network. */ |
1029 | for (rn = route_top(rip->enable_network); rn; rn = route_next(rn)) | |
d62a17ae | 1030 | if (rn->info) { |
1031 | rn->info = NULL; | |
1032 | route_unlock_node(rn); | |
1033 | } | |
1034 | ||
ca046902 RW |
1035 | /* rip->enable_interface. */ |
1036 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
1037 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) { | |
03c20031 | 1038 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 1039 | vector_slot(rip->enable_interface, i) = NULL; |
d62a17ae | 1040 | } |
718e3744 | 1041 | } |
6b0655a2 | 1042 | |
718e3744 | 1043 | /* Utility function for looking up passive interface settings. */ |
045c5389 | 1044 | static int rip_passive_nondefault_lookup(struct rip *rip, const char *ifname) |
718e3744 | 1045 | { |
d62a17ae | 1046 | unsigned int i; |
1047 | char *str; | |
718e3744 | 1048 | |
5a29c0d5 RW |
1049 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
1050 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) | |
d62a17ae | 1051 | if (strcmp(str, ifname) == 0) |
1052 | return i; | |
1053 | return -1; | |
718e3744 | 1054 | } |
1055 | ||
045c5389 | 1056 | static void rip_passive_interface_apply(struct interface *ifp) |
718e3744 | 1057 | { |
045c5389 | 1058 | struct rip *rip; |
d62a17ae | 1059 | struct rip_interface *ri; |
718e3744 | 1060 | |
045c5389 RW |
1061 | ri = ifp->info; |
1062 | rip = ri->rip; | |
44f2f852 RW |
1063 | if (rip == NULL) |
1064 | return; | |
1065 | ||
045c5389 | 1066 | ri->passive = ((rip_passive_nondefault_lookup(rip, ifp->name) < 0) |
44f2f852 RW |
1067 | ? rip->passive_default |
1068 | : !rip->passive_default); | |
4aaff3f8 | 1069 | |
d62a17ae | 1070 | if (IS_RIP_DEBUG_ZEBRA) |
1071 | zlog_debug("interface %s: passive = %d", ifp->name, | |
1072 | ri->passive); | |
718e3744 | 1073 | } |
1074 | ||
045c5389 | 1075 | static void rip_passive_interface_apply_all(struct rip *rip) |
718e3744 | 1076 | { |
d62a17ae | 1077 | struct interface *ifp; |
718e3744 | 1078 | |
ae7b826a | 1079 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 1080 | rip_passive_interface_apply(ifp); |
718e3744 | 1081 | } |
1082 | ||
1083 | /* Passive interface. */ | |
045c5389 | 1084 | int rip_passive_nondefault_set(struct rip *rip, const char *ifname) |
718e3744 | 1085 | { |
045c5389 | 1086 | if (rip_passive_nondefault_lookup(rip, ifname) >= 0) |
44f2f852 RW |
1087 | /* |
1088 | * Don't return an error, this can happen after changing | |
1089 | * 'passive-default'. | |
1090 | */ | |
1091 | return NB_OK; | |
718e3744 | 1092 | |
5a29c0d5 | 1093 | vector_set(rip->passive_nondefault, |
03c20031 | 1094 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 1095 | |
045c5389 | 1096 | rip_passive_interface_apply_all(rip); |
718e3744 | 1097 | |
44f2f852 | 1098 | return NB_OK; |
718e3744 | 1099 | } |
1100 | ||
045c5389 | 1101 | int rip_passive_nondefault_unset(struct rip *rip, const char *ifname) |
718e3744 | 1102 | { |
d62a17ae | 1103 | int i; |
1104 | char *str; | |
718e3744 | 1105 | |
045c5389 | 1106 | i = rip_passive_nondefault_lookup(rip, ifname); |
d62a17ae | 1107 | if (i < 0) |
44f2f852 RW |
1108 | /* |
1109 | * Don't return an error, this can happen after changing | |
1110 | * 'passive-default'. | |
1111 | */ | |
1112 | return NB_OK; | |
718e3744 | 1113 | |
5a29c0d5 | 1114 | str = vector_slot(rip->passive_nondefault, i); |
03c20031 | 1115 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1116 | vector_unset(rip->passive_nondefault, i); |
718e3744 | 1117 | |
045c5389 | 1118 | rip_passive_interface_apply_all(rip); |
718e3744 | 1119 | |
44f2f852 | 1120 | return NB_OK; |
718e3744 | 1121 | } |
1122 | ||
1123 | /* Free all configured RIP passive-interface settings. */ | |
045c5389 | 1124 | void rip_passive_nondefault_clean(struct rip *rip) |
718e3744 | 1125 | { |
d62a17ae | 1126 | unsigned int i; |
1127 | char *str; | |
718e3744 | 1128 | |
5a29c0d5 RW |
1129 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
1130 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) { | |
03c20031 | 1131 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1132 | vector_slot(rip->passive_nondefault, i) = NULL; |
d62a17ae | 1133 | } |
045c5389 | 1134 | rip_passive_interface_apply_all(rip); |
718e3744 | 1135 | } |
6b0655a2 | 1136 | |
718e3744 | 1137 | /* Write rip configuration of each interface. */ |
d62a17ae | 1138 | static int rip_interface_config_write(struct vty *vty) |
1139 | { | |
ae7b826a | 1140 | struct vrf *vrf; |
94b117b2 | 1141 | int write = 0; |
d62a17ae | 1142 | |
ae7b826a RW |
1143 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { |
1144 | struct interface *ifp; | |
d62a17ae | 1145 | |
ae7b826a RW |
1146 | FOR_ALL_INTERFACES (vrf, ifp) { |
1147 | struct lyd_node *dnode; | |
1148 | ||
1149 | dnode = yang_dnode_get( | |
1150 | running_config->dnode, | |
1151 | "/frr-interface:lib/interface[name='%s'][vrf='%s']", | |
1152 | ifp->name, vrf->name); | |
1153 | if (dnode == NULL) | |
1154 | continue; | |
d62a17ae | 1155 | |
ae7b826a RW |
1156 | write = 1; |
1157 | nb_cli_show_dnode_cmds(vty, dnode, false); | |
1158 | } | |
d62a17ae | 1159 | } |
94b117b2 RW |
1160 | |
1161 | return write; | |
d62a17ae | 1162 | } |
1163 | ||
045c5389 | 1164 | int rip_show_network_config(struct vty *vty, struct rip *rip) |
d62a17ae | 1165 | { |
1166 | unsigned int i; | |
1167 | char *ifname; | |
1168 | struct route_node *node; | |
1169 | ||
1170 | /* Network type RIP enable interface statement. */ | |
1205fdc4 | 1171 | for (node = route_top(rip->enable_network); node; |
d62a17ae | 1172 | node = route_next(node)) |
1173 | if (node->info) | |
53bb7f9b | 1174 | vty_out(vty, " %pFX\n", &node->p); |
d62a17ae | 1175 | |
1176 | /* Interface name RIP enable statement. */ | |
ca046902 RW |
1177 | for (i = 0; i < vector_active(rip->enable_interface); i++) |
1178 | if ((ifname = vector_slot(rip->enable_interface, i)) != NULL) | |
44f2f852 | 1179 | vty_out(vty, " %s\n", ifname); |
d62a17ae | 1180 | |
1181 | /* RIP neighbors listing. */ | |
1182 | for (node = route_top(rip->neighbor); node; node = route_next(node)) | |
1183 | if (node->info) | |
53bb7f9b | 1184 | vty_out(vty, " %pI4\n", &node->p.u.prefix4); |
718e3744 | 1185 | |
d62a17ae | 1186 | return 0; |
1187 | } | |
1188 | ||
612c2c15 | 1189 | static int rip_interface_config_write(struct vty *vty); |
d62a17ae | 1190 | static struct cmd_node interface_node = { |
f4b8291f | 1191 | .name = "interface", |
62b346ee | 1192 | .node = INTERFACE_NODE, |
24389580 | 1193 | .parent_node = CONFIG_NODE, |
62b346ee | 1194 | .prompt = "%s(config-if)# ", |
612c2c15 | 1195 | .config_write = rip_interface_config_write, |
718e3744 | 1196 | }; |
1197 | ||
ae7b826a RW |
1198 | void rip_interface_sync(struct interface *ifp) |
1199 | { | |
1200 | struct vrf *vrf; | |
1201 | ||
a36898e7 | 1202 | vrf = vrf_lookup_by_id(ifp->vrf_id); |
ae7b826a RW |
1203 | if (vrf) { |
1204 | struct rip_interface *ri; | |
1205 | ||
1206 | ri = ifp->info; | |
1207 | if (ri) | |
1208 | ri->rip = vrf->info; | |
1209 | } | |
1210 | } | |
1211 | ||
718e3744 | 1212 | /* Called when interface structure allocated. */ |
d62a17ae | 1213 | static int rip_interface_new_hook(struct interface *ifp) |
718e3744 | 1214 | { |
d62a17ae | 1215 | ifp->info = rip_interface_new(); |
ae7b826a RW |
1216 | rip_interface_sync(ifp); |
1217 | ||
d62a17ae | 1218 | return 0; |
718e3744 | 1219 | } |
1220 | ||
1221 | /* Called when interface structure deleted. */ | |
d62a17ae | 1222 | static int rip_interface_delete_hook(struct interface *ifp) |
718e3744 | 1223 | { |
72010aca | 1224 | rip_interface_reset(ifp->info); |
d62a17ae | 1225 | XFREE(MTYPE_RIP_INTERFACE, ifp->info); |
d62a17ae | 1226 | return 0; |
718e3744 | 1227 | } |
1228 | ||
1229 | /* Allocate and initialize interface vector. */ | |
d62a17ae | 1230 | void rip_if_init(void) |
718e3744 | 1231 | { |
d62a17ae | 1232 | /* Default initial size of interface vector. */ |
ce19a04a DL |
1233 | hook_register_prio(if_add, 0, rip_interface_new_hook); |
1234 | hook_register_prio(if_del, 0, rip_interface_delete_hook); | |
d62a17ae | 1235 | |
d62a17ae | 1236 | /* Install interface node. */ |
612c2c15 | 1237 | install_node(&interface_node); |
d62a17ae | 1238 | if_cmd_init(); |
138c5a74 DS |
1239 | if_zapi_callbacks(rip_ifp_create, rip_ifp_up, |
1240 | rip_ifp_down, rip_ifp_destroy); | |
718e3744 | 1241 | } |