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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 | |
bf8d3d6a DL |
46 | DEFINE_MTYPE_STATIC(RIPD, RIP_INTERFACE, "RIP interface"); |
47 | DEFINE_MTYPE(RIPD, RIP_INTERFACE_STRING, "RIP Interface String"); | |
8451921b DL |
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 | |
936fbaef | 163 | < IPV4_MAX_BITLEN) |
2e37ad7f RW |
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 | ||
718e3744 | 211 | /* Multicast packet receive socket. */ |
d62a17ae | 212 | static int rip_multicast_join(struct interface *ifp, int sock) |
718e3744 | 213 | { |
d62a17ae | 214 | struct listnode *cnode; |
215 | struct connected *ifc; | |
718e3744 | 216 | |
d62a17ae | 217 | if (if_is_operative(ifp) && if_is_multicast(ifp)) { |
218 | if (IS_RIP_DEBUG_EVENT) | |
219 | zlog_debug("multicast join at %s", ifp->name); | |
718e3744 | 220 | |
d62a17ae | 221 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, ifc)) { |
222 | struct prefix_ipv4 *p; | |
223 | struct in_addr group; | |
224 | ||
225 | p = (struct prefix_ipv4 *)ifc->address; | |
226 | ||
227 | if (p->family != AF_INET) | |
228 | continue; | |
229 | ||
230 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
231 | if (ipv4_multicast_join(sock, group, p->prefix, | |
232 | ifp->ifindex) | |
233 | < 0) | |
234 | return -1; | |
235 | else | |
236 | return 0; | |
237 | } | |
718e3744 | 238 | } |
d62a17ae | 239 | return 0; |
718e3744 | 240 | } |
241 | ||
242 | /* Leave from multicast group. */ | |
d62a17ae | 243 | static void rip_multicast_leave(struct interface *ifp, int sock) |
718e3744 | 244 | { |
d62a17ae | 245 | struct listnode *cnode; |
246 | struct connected *connected; | |
718e3744 | 247 | |
d62a17ae | 248 | if (if_is_up(ifp) && if_is_multicast(ifp)) { |
249 | if (IS_RIP_DEBUG_EVENT) | |
250 | zlog_debug("multicast leave from %s", ifp->name); | |
718e3744 | 251 | |
d62a17ae | 252 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
253 | struct prefix_ipv4 *p; | |
254 | struct in_addr group; | |
255 | ||
256 | p = (struct prefix_ipv4 *)connected->address; | |
257 | ||
258 | if (p->family != AF_INET) | |
259 | continue; | |
260 | ||
261 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
262 | if (ipv4_multicast_leave(sock, group, p->prefix, | |
263 | ifp->ifindex) | |
264 | == 0) | |
265 | return; | |
266 | } | |
267 | } | |
718e3744 | 268 | } |
269 | ||
270 | /* Is there and address on interface that I could use ? */ | |
d62a17ae | 271 | static int rip_if_ipv4_address_check(struct interface *ifp) |
718e3744 | 272 | { |
d62a17ae | 273 | struct listnode *nn; |
274 | struct connected *connected; | |
275 | int count = 0; | |
718e3744 | 276 | |
d62a17ae | 277 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, nn, connected)) { |
278 | struct prefix *p; | |
718e3744 | 279 | |
d62a17ae | 280 | p = connected->address; |
281 | ||
282 | if (p->family == AF_INET) | |
283 | count++; | |
284 | } | |
718e3744 | 285 | |
d62a17ae | 286 | return count; |
718e3744 | 287 | } |
d62a17ae | 288 | |
31a476c7 | 289 | |
290 | /* Does this address belongs to me ? */ | |
045c5389 | 291 | int if_check_address(struct rip *rip, struct in_addr addr) |
d62a17ae | 292 | { |
d62a17ae | 293 | struct interface *ifp; |
31a476c7 | 294 | |
ae7b826a | 295 | FOR_ALL_INTERFACES (rip->vrf, ifp) { |
d62a17ae | 296 | struct listnode *cnode; |
297 | struct connected *connected; | |
31a476c7 | 298 | |
d62a17ae | 299 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
300 | struct prefix_ipv4 *p; | |
31a476c7 | 301 | |
d62a17ae | 302 | p = (struct prefix_ipv4 *)connected->address; |
303 | ||
304 | if (p->family != AF_INET) | |
305 | continue; | |
306 | ||
307 | if (IPV4_ADDR_CMP(&p->prefix, &addr) == 0) | |
308 | return 1; | |
309 | } | |
31a476c7 | 310 | } |
d62a17ae | 311 | return 0; |
31a476c7 | 312 | } |
313 | ||
718e3744 | 314 | /* Inteface link down message processing. */ |
b0b69e59 | 315 | static int rip_ifp_down(struct interface *ifp) |
718e3744 | 316 | { |
ae7b826a | 317 | rip_interface_sync(ifp); |
d62a17ae | 318 | rip_if_down(ifp); |
718e3744 | 319 | |
5434aac4 DS |
320 | if (IS_RIP_DEBUG_ZEBRA) { |
321 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
322 | ||
d62a17ae | 323 | zlog_debug( |
5434aac4 DS |
324 | "interface %s vrf %s(%u) index %d flags %llx metric %d mtu %d is down", |
325 | ifp->name, VRF_LOGNAME(vrf), ifp->vrf_id, ifp->ifindex, | |
ae7b826a | 326 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
5434aac4 | 327 | } |
d62a17ae | 328 | |
329 | return 0; | |
718e3744 | 330 | } |
331 | ||
332 | /* Inteface link up message processing */ | |
ddbf3e60 | 333 | static int rip_ifp_up(struct interface *ifp) |
718e3744 | 334 | { |
5434aac4 DS |
335 | if (IS_RIP_DEBUG_ZEBRA) { |
336 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
337 | ||
d62a17ae | 338 | zlog_debug( |
5434aac4 DS |
339 | "interface %s vrf %s(%u) index %d flags %#llx metric %d mtu %d is up", |
340 | ifp->name, VRF_LOGNAME(vrf), ifp->vrf_id, ifp->ifindex, | |
ae7b826a | 341 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
5434aac4 | 342 | } |
ae7b826a RW |
343 | |
344 | rip_interface_sync(ifp); | |
718e3744 | 345 | |
d62a17ae | 346 | /* Check if this interface is RIP enabled or not.*/ |
347 | rip_enable_apply(ifp); | |
718e3744 | 348 | |
d62a17ae | 349 | /* Check for a passive interface */ |
350 | rip_passive_interface_apply(ifp); | |
718e3744 | 351 | |
d62a17ae | 352 | /* Apply distribute list to the all interface. */ |
353 | rip_distribute_update_interface(ifp); | |
718e3744 | 354 | |
d62a17ae | 355 | return 0; |
718e3744 | 356 | } |
357 | ||
358 | /* Inteface addition message from zebra. */ | |
ef7bd2a3 | 359 | static int rip_ifp_create(struct interface *ifp) |
718e3744 | 360 | { |
ae7b826a | 361 | rip_interface_sync(ifp); |
718e3744 | 362 | |
5434aac4 DS |
363 | if (IS_RIP_DEBUG_ZEBRA) { |
364 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); | |
d62a17ae | 365 | zlog_debug( |
5434aac4 DS |
366 | "interface add %s vrf %s(%u) index %d flags %#llx metric %d mtu %d", |
367 | ifp->name, VRF_LOGNAME(vrf), ifp->vrf_id, ifp->ifindex, | |
ae7b826a | 368 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); |
5434aac4 | 369 | } |
718e3744 | 370 | |
d62a17ae | 371 | /* Check if this interface is RIP enabled or not.*/ |
372 | rip_enable_apply(ifp); | |
718e3744 | 373 | |
d62a17ae | 374 | /* Check for a passive interface */ |
375 | rip_passive_interface_apply(ifp); | |
718e3744 | 376 | |
d62a17ae | 377 | /* Apply distribute list to the all interface. */ |
378 | rip_distribute_update_interface(ifp); | |
718e3744 | 379 | |
d62a17ae | 380 | /* rip_request_neighbor_all (); */ |
16705130 | 381 | |
d62a17ae | 382 | /* Check interface routemap. */ |
383 | rip_if_rmap_update_interface(ifp); | |
384 | ||
385 | return 0; | |
718e3744 | 386 | } |
387 | ||
3c3c3252 | 388 | static int rip_ifp_destroy(struct interface *ifp) |
718e3744 | 389 | { |
5434aac4 DS |
390 | struct vrf *vrf = vrf_lookup_by_id(ifp->vrf_id); |
391 | ||
ae7b826a | 392 | rip_interface_sync(ifp); |
d62a17ae | 393 | if (if_is_up(ifp)) { |
394 | rip_if_down(ifp); | |
395 | } | |
718e3744 | 396 | |
13c5f95e DS |
397 | if (IS_RIP_DEBUG_ZEBRA) |
398 | zlog_debug( | |
399 | "interface delete %s vrf %s(%u) index %d flags %#llx metric %d mtu %d", | |
400 | ifp->name, VRF_LOGNAME(vrf), ifp->vrf_id, ifp->ifindex, | |
401 | (unsigned long long)ifp->flags, ifp->metric, ifp->mtu); | |
718e3744 | 402 | |
d62a17ae | 403 | return 0; |
718e3744 | 404 | } |
405 | ||
ae7b826a | 406 | /* VRF update for an interface. */ |
121f9dee | 407 | int rip_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
ae7b826a RW |
408 | { |
409 | struct interface *ifp; | |
410 | vrf_id_t new_vrf_id; | |
411 | ||
412 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, | |
413 | &new_vrf_id); | |
414 | if (!ifp) | |
415 | return 0; | |
416 | ||
5434aac4 DS |
417 | if (IS_RIP_DEBUG_ZEBRA) { |
418 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
419 | struct vrf *nvrf = vrf_lookup_by_id(new_vrf_id); | |
420 | ||
421 | zlog_debug("interface %s VRF change vrf %s(%u) new vrf %s(%u)", | |
422 | ifp->name, VRF_LOGNAME(vrf), vrf_id, | |
423 | VRF_LOGNAME(nvrf), new_vrf_id); | |
424 | } | |
ae7b826a | 425 | |
a36898e7 | 426 | if_update_to_new_vrf(ifp, new_vrf_id); |
ae7b826a RW |
427 | rip_interface_sync(ifp); |
428 | ||
429 | return 0; | |
430 | } | |
431 | ||
d62a17ae | 432 | static void rip_interface_clean(struct rip_interface *ri) |
4305dfd1 | 433 | { |
d62a17ae | 434 | ri->enable_network = 0; |
435 | ri->enable_interface = 0; | |
436 | ri->running = 0; | |
718e3744 | 437 | |
b3d6bc6e | 438 | thread_cancel(&ri->t_wakeup); |
4305dfd1 | 439 | } |
718e3744 | 440 | |
045c5389 | 441 | void rip_interfaces_clean(struct rip *rip) |
718e3744 | 442 | { |
d62a17ae | 443 | struct interface *ifp; |
718e3744 | 444 | |
ae7b826a | 445 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 446 | rip_interface_clean(ifp->info); |
1dec2166 | 447 | } |
718e3744 | 448 | |
d62a17ae | 449 | static void rip_interface_reset(struct rip_interface *ri) |
4305dfd1 | 450 | { |
94b117b2 RW |
451 | ri->auth_type = yang_get_default_enum("%s/authentication-scheme/mode", |
452 | RIP_IFACE); | |
453 | ri->md5_auth_len = yang_get_default_enum( | |
454 | "%s/authentication-scheme/md5-auth-length", RIP_IFACE); | |
718e3744 | 455 | |
d62a17ae | 456 | /* Set default split-horizon behavior. If the interface is Frame |
457 | Relay or SMDS is enabled, the default value for split-horizon is | |
458 | off. But currently Zebra does detect Frame Relay or SMDS | |
459 | interface. So all interface is set to split horizon. */ | |
94b117b2 RW |
460 | ri->split_horizon = |
461 | yang_get_default_enum("%s/split-horizon", RIP_IFACE); | |
718e3744 | 462 | |
94b117b2 RW |
463 | ri->ri_send = yang_get_default_enum("%s/version-send", RIP_IFACE); |
464 | ri->ri_receive = yang_get_default_enum("%s/version-receive", RIP_IFACE); | |
465 | ri->v2_broadcast = yang_get_default_bool("%s/v2-broadcast", RIP_IFACE); | |
f90310cf | 466 | |
0a22ddfb | 467 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->auth_str); |
03c20031 | 468 | |
0a22ddfb | 469 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->key_chain); |
03c20031 | 470 | |
d62a17ae | 471 | ri->list[RIP_FILTER_IN] = NULL; |
472 | ri->list[RIP_FILTER_OUT] = NULL; | |
718e3744 | 473 | |
d62a17ae | 474 | ri->prefix[RIP_FILTER_IN] = NULL; |
475 | ri->prefix[RIP_FILTER_OUT] = NULL; | |
718e3744 | 476 | |
d62a17ae | 477 | ri->recv_badpackets = 0; |
478 | ri->recv_badroutes = 0; | |
479 | ri->sent_updates = 0; | |
4305dfd1 | 480 | |
d62a17ae | 481 | ri->passive = 0; |
718e3744 | 482 | |
d62a17ae | 483 | rip_interface_clean(ri); |
4305dfd1 | 484 | } |
718e3744 | 485 | |
d62a17ae | 486 | int rip_if_down(struct interface *ifp) |
718e3744 | 487 | { |
045c5389 | 488 | struct rip *rip; |
d62a17ae | 489 | struct route_node *rp; |
490 | struct rip_info *rinfo; | |
491 | struct rip_interface *ri = NULL; | |
492 | struct list *list = NULL; | |
493 | struct listnode *listnode = NULL, *nextnode = NULL; | |
045c5389 RW |
494 | |
495 | ri = ifp->info; | |
8f0c2688 IR |
496 | |
497 | THREAD_OFF(ri->t_wakeup); | |
498 | ||
045c5389 | 499 | rip = ri->rip; |
d62a17ae | 500 | if (rip) { |
501 | for (rp = route_top(rip->table); rp; rp = route_next(rp)) | |
502 | if ((list = rp->info) != NULL) | |
503 | for (ALL_LIST_ELEMENTS(list, listnode, nextnode, | |
504 | rinfo)) | |
dd127197 | 505 | if (rinfo->nh.ifindex == ifp->ifindex) |
045c5389 | 506 | rip_ecmp_delete(rip, rinfo); |
d62a17ae | 507 | |
508 | if (ri->running) { | |
509 | if (IS_RIP_DEBUG_EVENT) | |
510 | zlog_debug("turn off %s", ifp->name); | |
511 | ||
512 | /* Leave from multicast group. */ | |
513 | rip_multicast_leave(ifp, rip->sock); | |
514 | ||
515 | ri->running = 0; | |
516 | } | |
517 | } | |
518 | ||
519 | return 0; | |
718e3744 | 520 | } |
521 | ||
d62a17ae | 522 | static void rip_apply_address_add(struct connected *ifc) |
dc63bfd4 | 523 | { |
045c5389 RW |
524 | struct rip_interface *ri = ifc->ifp->info; |
525 | struct rip *rip = ri->rip; | |
d62a17ae | 526 | struct prefix_ipv4 address; |
3f5682c8 | 527 | struct nexthop nh; |
d62a17ae | 528 | struct prefix *p; |
16705130 | 529 | |
d62a17ae | 530 | if (!rip) |
531 | return; | |
16705130 | 532 | |
d62a17ae | 533 | if (!if_is_up(ifc->ifp)) |
534 | return; | |
16705130 | 535 | |
d62a17ae | 536 | p = ifc->address; |
16705130 | 537 | |
d62a17ae | 538 | memset(&address, 0, sizeof(address)); |
3f5682c8 DS |
539 | memset(&nh, 0, sizeof(nh)); |
540 | ||
d62a17ae | 541 | address.family = p->family; |
542 | address.prefix = p->u.prefix4; | |
543 | address.prefixlen = p->prefixlen; | |
544 | apply_mask_ipv4(&address); | |
16705130 | 545 | |
3f5682c8 DS |
546 | nh.ifindex = ifc->ifp->ifindex; |
547 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
548 | ||
d62a17ae | 549 | /* Check if this interface is RIP enabled or not |
550 | or Check if this address's prefix is RIP enabled */ | |
045c5389 | 551 | if ((rip_enable_if_lookup(rip, ifc->ifp->name) >= 0) |
d62a17ae | 552 | || (rip_enable_network_lookup2(ifc) >= 0)) |
045c5389 RW |
553 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
554 | RIP_ROUTE_INTERFACE, &address, &nh, 0, 0, | |
555 | 0); | |
16705130 | 556 | } |
557 | ||
121f9dee | 558 | int rip_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 559 | { |
d62a17ae | 560 | struct connected *ifc; |
561 | struct prefix *p; | |
718e3744 | 562 | |
d62a17ae | 563 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, |
564 | zclient->ibuf, vrf_id); | |
718e3744 | 565 | |
d62a17ae | 566 | if (ifc == NULL) |
567 | return 0; | |
718e3744 | 568 | |
d62a17ae | 569 | p = ifc->address; |
718e3744 | 570 | |
d62a17ae | 571 | if (p->family == AF_INET) { |
572 | if (IS_RIP_DEBUG_ZEBRA) | |
f42238f8 | 573 | zlog_debug("connected address %pFX is added", p); |
16705130 | 574 | |
d62a17ae | 575 | rip_enable_apply(ifc->ifp); |
576 | /* Check if this prefix needs to be redistributed */ | |
577 | rip_apply_address_add(ifc); | |
718e3744 | 578 | |
d62a17ae | 579 | hook_call(rip_ifaddr_add, ifc); |
580 | } | |
718e3744 | 581 | |
d62a17ae | 582 | return 0; |
718e3744 | 583 | } |
584 | ||
d62a17ae | 585 | static void rip_apply_address_del(struct connected *ifc) |
586 | { | |
045c5389 RW |
587 | struct rip_interface *ri = ifc->ifp->info; |
588 | struct rip *rip = ri->rip; | |
d62a17ae | 589 | struct prefix_ipv4 address; |
590 | struct prefix *p; | |
16705130 | 591 | |
d62a17ae | 592 | if (!rip) |
593 | return; | |
16705130 | 594 | |
d62a17ae | 595 | if (!if_is_up(ifc->ifp)) |
596 | return; | |
16705130 | 597 | |
d62a17ae | 598 | p = ifc->address; |
16705130 | 599 | |
d62a17ae | 600 | memset(&address, 0, sizeof(address)); |
601 | address.family = p->family; | |
602 | address.prefix = p->u.prefix4; | |
603 | address.prefixlen = p->prefixlen; | |
604 | apply_mask_ipv4(&address); | |
16705130 | 605 | |
045c5389 | 606 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, |
d62a17ae | 607 | &address, ifc->ifp->ifindex); |
16705130 | 608 | } |
609 | ||
121f9dee | 610 | int rip_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 611 | { |
d62a17ae | 612 | struct connected *ifc; |
613 | struct prefix *p; | |
718e3744 | 614 | |
d62a17ae | 615 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, |
616 | zclient->ibuf, vrf_id); | |
718e3744 | 617 | |
d62a17ae | 618 | if (ifc) { |
619 | p = ifc->address; | |
620 | if (p->family == AF_INET) { | |
621 | if (IS_RIP_DEBUG_ZEBRA) | |
f42238f8 DS |
622 | zlog_debug("connected address %pFX is deleted", |
623 | p); | |
16705130 | 624 | |
d62a17ae | 625 | hook_call(rip_ifaddr_del, ifc); |
718e3744 | 626 | |
d62a17ae | 627 | /* Chech wether this prefix needs to be removed */ |
628 | rip_apply_address_del(ifc); | |
629 | } | |
718e3744 | 630 | |
721c0857 | 631 | connected_free(&ifc); |
d62a17ae | 632 | } |
718e3744 | 633 | |
d62a17ae | 634 | return 0; |
718e3744 | 635 | } |
6b0655a2 | 636 | |
718e3744 | 637 | /* Check interface is enabled by network statement. */ |
16705130 | 638 | /* Check wether the interface has at least a connected prefix that |
639 | * is within the ripng_enable_network table. */ | |
d62a17ae | 640 | static int rip_enable_network_lookup_if(struct interface *ifp) |
641 | { | |
045c5389 RW |
642 | struct rip_interface *ri = ifp->info; |
643 | struct rip *rip = ri->rip; | |
d62a17ae | 644 | struct listnode *node, *nnode; |
645 | struct connected *connected; | |
646 | struct prefix_ipv4 address; | |
647 | ||
1205fdc4 RW |
648 | if (!rip) |
649 | return -1; | |
650 | ||
d62a17ae | 651 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { |
652 | struct prefix *p; | |
dc7204b7 | 653 | struct route_node *n; |
d62a17ae | 654 | |
655 | p = connected->address; | |
656 | ||
657 | if (p->family == AF_INET) { | |
658 | address.family = AF_INET; | |
659 | address.prefix = p->u.prefix4; | |
660 | address.prefixlen = IPV4_MAX_BITLEN; | |
661 | ||
1205fdc4 | 662 | n = route_node_match(rip->enable_network, |
dc7204b7 A |
663 | (struct prefix *)&address); |
664 | if (n) { | |
665 | route_unlock_node(n); | |
d62a17ae | 666 | return 1; |
667 | } | |
668 | } | |
669 | } | |
670 | return -1; | |
718e3744 | 671 | } |
672 | ||
16705130 | 673 | /* Check wether connected is within the ripng_enable_network table. */ |
045c5389 | 674 | static int rip_enable_network_lookup2(struct connected *connected) |
16705130 | 675 | { |
045c5389 RW |
676 | struct rip_interface *ri = connected->ifp->info; |
677 | struct rip *rip = ri->rip; | |
d62a17ae | 678 | struct prefix_ipv4 address; |
679 | struct prefix *p; | |
16705130 | 680 | |
d62a17ae | 681 | p = connected->address; |
16705130 | 682 | |
d62a17ae | 683 | if (p->family == AF_INET) { |
684 | struct route_node *node; | |
16705130 | 685 | |
d62a17ae | 686 | address.family = p->family; |
687 | address.prefix = p->u.prefix4; | |
688 | address.prefixlen = IPV4_MAX_BITLEN; | |
16705130 | 689 | |
d62a17ae | 690 | /* LPM on p->family, p->u.prefix4/IPV4_MAX_BITLEN within |
1205fdc4 RW |
691 | * rip->enable_network */ |
692 | node = route_node_match(rip->enable_network, | |
d62a17ae | 693 | (struct prefix *)&address); |
16705130 | 694 | |
d62a17ae | 695 | if (node) { |
696 | route_unlock_node(node); | |
697 | return 1; | |
698 | } | |
699 | } | |
16705130 | 700 | |
d62a17ae | 701 | return -1; |
16705130 | 702 | } |
718e3744 | 703 | /* Add RIP enable network. */ |
045c5389 | 704 | int rip_enable_network_add(struct rip *rip, struct prefix *p) |
718e3744 | 705 | { |
d62a17ae | 706 | struct route_node *node; |
718e3744 | 707 | |
1205fdc4 | 708 | node = route_node_get(rip->enable_network, p); |
718e3744 | 709 | |
d62a17ae | 710 | if (node->info) { |
711 | route_unlock_node(node); | |
3d7a1be8 | 712 | return NB_ERR_INCONSISTENCY; |
d62a17ae | 713 | } else |
714 | node->info = (void *)1; | |
718e3744 | 715 | |
d62a17ae | 716 | /* XXX: One should find a better solution than a generic one */ |
045c5389 | 717 | rip_enable_apply_all(rip); |
16705130 | 718 | |
3d7a1be8 | 719 | return NB_OK; |
718e3744 | 720 | } |
721 | ||
722 | /* Delete RIP enable network. */ | |
045c5389 | 723 | int rip_enable_network_delete(struct rip *rip, struct prefix *p) |
718e3744 | 724 | { |
d62a17ae | 725 | struct route_node *node; |
718e3744 | 726 | |
1205fdc4 | 727 | node = route_node_lookup(rip->enable_network, p); |
d62a17ae | 728 | if (node) { |
729 | node->info = NULL; | |
718e3744 | 730 | |
d62a17ae | 731 | /* Unlock info lock. */ |
732 | route_unlock_node(node); | |
718e3744 | 733 | |
d62a17ae | 734 | /* Unlock lookup lock. */ |
735 | route_unlock_node(node); | |
718e3744 | 736 | |
d62a17ae | 737 | /* XXX: One should find a better solution than a generic one */ |
045c5389 | 738 | rip_enable_apply_all(rip); |
16705130 | 739 | |
3d7a1be8 | 740 | return NB_OK; |
d62a17ae | 741 | } |
3d7a1be8 RW |
742 | |
743 | return NB_ERR_INCONSISTENCY; | |
718e3744 | 744 | } |
745 | ||
746 | /* Check interface is enabled by ifname statement. */ | |
045c5389 | 747 | static int rip_enable_if_lookup(struct rip *rip, const char *ifname) |
718e3744 | 748 | { |
d62a17ae | 749 | unsigned int i; |
750 | char *str; | |
718e3744 | 751 | |
ca046902 RW |
752 | if (!rip) |
753 | return -1; | |
754 | ||
755 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
756 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) | |
d62a17ae | 757 | if (strcmp(str, ifname) == 0) |
758 | return i; | |
759 | return -1; | |
718e3744 | 760 | } |
761 | ||
762 | /* Add interface to rip_enable_if. */ | |
045c5389 | 763 | int rip_enable_if_add(struct rip *rip, const char *ifname) |
718e3744 | 764 | { |
d62a17ae | 765 | int ret; |
718e3744 | 766 | |
045c5389 | 767 | ret = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 768 | if (ret >= 0) |
3d7a1be8 | 769 | return NB_ERR_INCONSISTENCY; |
718e3744 | 770 | |
ca046902 | 771 | vector_set(rip->enable_interface, |
03c20031 | 772 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 773 | |
045c5389 | 774 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 775 | |
3d7a1be8 | 776 | return NB_OK; |
718e3744 | 777 | } |
778 | ||
779 | /* Delete interface from rip_enable_if. */ | |
045c5389 | 780 | int rip_enable_if_delete(struct rip *rip, const char *ifname) |
718e3744 | 781 | { |
d62a17ae | 782 | int index; |
783 | char *str; | |
718e3744 | 784 | |
045c5389 | 785 | index = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 786 | if (index < 0) |
3d7a1be8 | 787 | return NB_ERR_INCONSISTENCY; |
718e3744 | 788 | |
ca046902 | 789 | str = vector_slot(rip->enable_interface, index); |
03c20031 | 790 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 791 | vector_unset(rip->enable_interface, index); |
718e3744 | 792 | |
045c5389 | 793 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 794 | |
3d7a1be8 | 795 | return NB_OK; |
718e3744 | 796 | } |
797 | ||
798 | /* Join to multicast group and send request to the interface. */ | |
d62a17ae | 799 | static int rip_interface_wakeup(struct thread *t) |
718e3744 | 800 | { |
d62a17ae | 801 | struct interface *ifp; |
802 | struct rip_interface *ri; | |
718e3744 | 803 | |
d62a17ae | 804 | /* Get interface. */ |
805 | ifp = THREAD_ARG(t); | |
718e3744 | 806 | |
d62a17ae | 807 | ri = ifp->info; |
808 | ri->t_wakeup = NULL; | |
718e3744 | 809 | |
d62a17ae | 810 | /* Join to multicast group. */ |
045c5389 | 811 | if (rip_multicast_join(ifp, ri->rip->sock) < 0) { |
450971aa | 812 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
813 | "multicast join failed, interface %s not running", |
814 | ifp->name); | |
d62a17ae | 815 | return 0; |
816 | } | |
718e3744 | 817 | |
d62a17ae | 818 | /* Set running flag. */ |
819 | ri->running = 1; | |
820 | ||
821 | /* Send RIP request to the interface. */ | |
822 | rip_request_interface(ifp); | |
823 | ||
824 | return 0; | |
825 | } | |
826 | ||
827 | static void rip_connect_set(struct interface *ifp, int set) | |
828 | { | |
045c5389 RW |
829 | struct rip_interface *ri = ifp->info; |
830 | struct rip *rip = ri->rip; | |
d62a17ae | 831 | struct listnode *node, *nnode; |
832 | struct connected *connected; | |
833 | struct prefix_ipv4 address; | |
3f5682c8 DS |
834 | struct nexthop nh; |
835 | ||
836 | memset(&nh, 0, sizeof(nh)); | |
d62a17ae | 837 | |
838 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
839 | struct prefix *p; | |
840 | p = connected->address; | |
841 | ||
842 | if (p->family != AF_INET) | |
843 | continue; | |
844 | ||
845 | address.family = AF_INET; | |
846 | address.prefix = p->u.prefix4; | |
847 | address.prefixlen = p->prefixlen; | |
848 | apply_mask_ipv4(&address); | |
849 | ||
3f5682c8 DS |
850 | nh.ifindex = connected->ifp->ifindex; |
851 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
d62a17ae | 852 | if (set) { |
853 | /* Check once more wether this prefix is within a | |
854 | * "network IF_OR_PREF" one */ | |
045c5389 RW |
855 | if ((rip_enable_if_lookup(rip, connected->ifp->name) |
856 | >= 0) | |
d62a17ae | 857 | || (rip_enable_network_lookup2(connected) >= 0)) |
045c5389 | 858 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
996c9314 LB |
859 | RIP_ROUTE_INTERFACE, |
860 | &address, &nh, 0, 0, 0); | |
d62a17ae | 861 | } else { |
045c5389 | 862 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, |
d62a17ae | 863 | RIP_ROUTE_INTERFACE, &address, |
864 | connected->ifp->ifindex); | |
045c5389 RW |
865 | if (rip_redistribute_check(rip, ZEBRA_ROUTE_CONNECT)) |
866 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, | |
996c9314 LB |
867 | RIP_ROUTE_REDISTRIBUTE, |
868 | &address, &nh, 0, 0, 0); | |
d62a17ae | 869 | } |
870 | } | |
718e3744 | 871 | } |
872 | ||
873 | /* Update interface status. */ | |
d62a17ae | 874 | void rip_enable_apply(struct interface *ifp) |
718e3744 | 875 | { |
d62a17ae | 876 | int ret; |
877 | struct rip_interface *ri = NULL; | |
718e3744 | 878 | |
d62a17ae | 879 | /* Check interface. */ |
880 | if (!if_is_operative(ifp)) | |
881 | return; | |
718e3744 | 882 | |
d62a17ae | 883 | ri = ifp->info; |
884 | ||
885 | /* Check network configuration. */ | |
886 | ret = rip_enable_network_lookup_if(ifp); | |
887 | ||
888 | /* If the interface is matched. */ | |
889 | if (ret > 0) | |
890 | ri->enable_network = 1; | |
891 | else | |
892 | ri->enable_network = 0; | |
893 | ||
894 | /* Check interface name configuration. */ | |
045c5389 | 895 | ret = rip_enable_if_lookup(ri->rip, ifp->name); |
d62a17ae | 896 | if (ret >= 0) |
897 | ri->enable_interface = 1; | |
898 | else | |
899 | ri->enable_interface = 0; | |
718e3744 | 900 | |
d62a17ae | 901 | /* any interface MUST have an IPv4 address */ |
902 | if (!rip_if_ipv4_address_check(ifp)) { | |
903 | ri->enable_network = 0; | |
904 | ri->enable_interface = 0; | |
718e3744 | 905 | } |
718e3744 | 906 | |
d62a17ae | 907 | /* Update running status of the interface. */ |
908 | if (ri->enable_network || ri->enable_interface) { | |
2e37ad7f RW |
909 | if (IS_RIP_DEBUG_EVENT) |
910 | zlog_debug("turn on %s", ifp->name); | |
911 | ||
912 | /* Add interface wake up thread. */ | |
913 | thread_add_timer(master, rip_interface_wakeup, ifp, 1, | |
914 | &ri->t_wakeup); | |
915 | rip_connect_set(ifp, 1); | |
916 | } else if (ri->running) { | |
917 | /* Might as well clean up the route table as well | |
918 | * rip_if_down sets to 0 ri->running, and displays "turn | |
919 | *off %s" | |
920 | **/ | |
921 | rip_if_down(ifp); | |
d62a17ae | 922 | |
2e37ad7f | 923 | rip_connect_set(ifp, 0); |
718e3744 | 924 | } |
718e3744 | 925 | } |
926 | ||
927 | /* Apply network configuration to all interface. */ | |
045c5389 | 928 | static void rip_enable_apply_all(struct rip *rip) |
718e3744 | 929 | { |
d62a17ae | 930 | struct interface *ifp; |
718e3744 | 931 | |
d62a17ae | 932 | /* Check each interface. */ |
ae7b826a | 933 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 934 | rip_enable_apply(ifp); |
718e3744 | 935 | } |
936 | ||
045c5389 | 937 | int rip_neighbor_lookup(struct rip *rip, struct sockaddr_in *from) |
718e3744 | 938 | { |
d62a17ae | 939 | struct prefix_ipv4 p; |
940 | struct route_node *node; | |
718e3744 | 941 | |
d62a17ae | 942 | memset(&p, 0, sizeof(struct prefix_ipv4)); |
943 | p.family = AF_INET; | |
944 | p.prefix = from->sin_addr; | |
945 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 946 | |
d62a17ae | 947 | node = route_node_lookup(rip->neighbor, (struct prefix *)&p); |
948 | if (node) { | |
949 | route_unlock_node(node); | |
950 | return 1; | |
951 | } | |
952 | return 0; | |
718e3744 | 953 | } |
954 | ||
955 | /* Add new RIP neighbor to the neighbor tree. */ | |
045c5389 | 956 | int rip_neighbor_add(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 957 | { |
d62a17ae | 958 | struct route_node *node; |
718e3744 | 959 | |
d62a17ae | 960 | node = route_node_get(rip->neighbor, (struct prefix *)p); |
718e3744 | 961 | |
d62a17ae | 962 | if (node->info) |
f0ab22fb | 963 | return NB_ERR_INCONSISTENCY; |
718e3744 | 964 | |
d62a17ae | 965 | node->info = rip->neighbor; |
718e3744 | 966 | |
f0ab22fb | 967 | return NB_OK; |
718e3744 | 968 | } |
969 | ||
970 | /* Delete RIP neighbor from the neighbor tree. */ | |
045c5389 | 971 | int rip_neighbor_delete(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 972 | { |
d62a17ae | 973 | struct route_node *node; |
718e3744 | 974 | |
d62a17ae | 975 | /* Lock for look up. */ |
976 | node = route_node_lookup(rip->neighbor, (struct prefix *)p); | |
977 | if (!node) | |
f0ab22fb | 978 | return NB_ERR_INCONSISTENCY; |
718e3744 | 979 | |
d62a17ae | 980 | node->info = NULL; |
718e3744 | 981 | |
d62a17ae | 982 | /* Unlock lookup lock. */ |
983 | route_unlock_node(node); | |
718e3744 | 984 | |
d62a17ae | 985 | /* Unlock real neighbor information lock. */ |
986 | route_unlock_node(node); | |
987 | ||
f0ab22fb | 988 | return NB_OK; |
718e3744 | 989 | } |
990 | ||
991 | /* Clear all network and neighbor configuration. */ | |
045c5389 | 992 | void rip_clean_network(struct rip *rip) |
d62a17ae | 993 | { |
994 | unsigned int i; | |
995 | char *str; | |
996 | struct route_node *rn; | |
997 | ||
1205fdc4 RW |
998 | /* rip->enable_network. */ |
999 | for (rn = route_top(rip->enable_network); rn; rn = route_next(rn)) | |
d62a17ae | 1000 | if (rn->info) { |
1001 | rn->info = NULL; | |
1002 | route_unlock_node(rn); | |
1003 | } | |
1004 | ||
ca046902 RW |
1005 | /* rip->enable_interface. */ |
1006 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
1007 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) { | |
03c20031 | 1008 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 1009 | vector_slot(rip->enable_interface, i) = NULL; |
d62a17ae | 1010 | } |
718e3744 | 1011 | } |
6b0655a2 | 1012 | |
718e3744 | 1013 | /* Utility function for looking up passive interface settings. */ |
045c5389 | 1014 | static int rip_passive_nondefault_lookup(struct rip *rip, const char *ifname) |
718e3744 | 1015 | { |
d62a17ae | 1016 | unsigned int i; |
1017 | char *str; | |
718e3744 | 1018 | |
5a29c0d5 RW |
1019 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
1020 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) | |
d62a17ae | 1021 | if (strcmp(str, ifname) == 0) |
1022 | return i; | |
1023 | return -1; | |
718e3744 | 1024 | } |
1025 | ||
045c5389 | 1026 | static void rip_passive_interface_apply(struct interface *ifp) |
718e3744 | 1027 | { |
045c5389 | 1028 | struct rip *rip; |
d62a17ae | 1029 | struct rip_interface *ri; |
718e3744 | 1030 | |
045c5389 RW |
1031 | ri = ifp->info; |
1032 | rip = ri->rip; | |
44f2f852 RW |
1033 | if (rip == NULL) |
1034 | return; | |
1035 | ||
045c5389 | 1036 | ri->passive = ((rip_passive_nondefault_lookup(rip, ifp->name) < 0) |
44f2f852 RW |
1037 | ? rip->passive_default |
1038 | : !rip->passive_default); | |
4aaff3f8 | 1039 | |
d62a17ae | 1040 | if (IS_RIP_DEBUG_ZEBRA) |
1041 | zlog_debug("interface %s: passive = %d", ifp->name, | |
1042 | ri->passive); | |
718e3744 | 1043 | } |
1044 | ||
045c5389 | 1045 | static void rip_passive_interface_apply_all(struct rip *rip) |
718e3744 | 1046 | { |
d62a17ae | 1047 | struct interface *ifp; |
718e3744 | 1048 | |
ae7b826a | 1049 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 1050 | rip_passive_interface_apply(ifp); |
718e3744 | 1051 | } |
1052 | ||
1053 | /* Passive interface. */ | |
045c5389 | 1054 | int rip_passive_nondefault_set(struct rip *rip, const char *ifname) |
718e3744 | 1055 | { |
045c5389 | 1056 | if (rip_passive_nondefault_lookup(rip, ifname) >= 0) |
44f2f852 RW |
1057 | /* |
1058 | * Don't return an error, this can happen after changing | |
1059 | * 'passive-default'. | |
1060 | */ | |
1061 | return NB_OK; | |
718e3744 | 1062 | |
5a29c0d5 | 1063 | vector_set(rip->passive_nondefault, |
03c20031 | 1064 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 1065 | |
045c5389 | 1066 | rip_passive_interface_apply_all(rip); |
718e3744 | 1067 | |
44f2f852 | 1068 | return NB_OK; |
718e3744 | 1069 | } |
1070 | ||
045c5389 | 1071 | int rip_passive_nondefault_unset(struct rip *rip, const char *ifname) |
718e3744 | 1072 | { |
d62a17ae | 1073 | int i; |
1074 | char *str; | |
718e3744 | 1075 | |
045c5389 | 1076 | i = rip_passive_nondefault_lookup(rip, ifname); |
d62a17ae | 1077 | if (i < 0) |
44f2f852 RW |
1078 | /* |
1079 | * Don't return an error, this can happen after changing | |
1080 | * 'passive-default'. | |
1081 | */ | |
1082 | return NB_OK; | |
718e3744 | 1083 | |
5a29c0d5 | 1084 | str = vector_slot(rip->passive_nondefault, i); |
03c20031 | 1085 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1086 | vector_unset(rip->passive_nondefault, i); |
718e3744 | 1087 | |
045c5389 | 1088 | rip_passive_interface_apply_all(rip); |
718e3744 | 1089 | |
44f2f852 | 1090 | return NB_OK; |
718e3744 | 1091 | } |
1092 | ||
1093 | /* Free all configured RIP passive-interface settings. */ | |
045c5389 | 1094 | void rip_passive_nondefault_clean(struct rip *rip) |
718e3744 | 1095 | { |
d62a17ae | 1096 | unsigned int i; |
1097 | char *str; | |
718e3744 | 1098 | |
5a29c0d5 RW |
1099 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
1100 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) { | |
03c20031 | 1101 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1102 | vector_slot(rip->passive_nondefault, i) = NULL; |
d62a17ae | 1103 | } |
045c5389 | 1104 | rip_passive_interface_apply_all(rip); |
718e3744 | 1105 | } |
6b0655a2 | 1106 | |
718e3744 | 1107 | /* Write rip configuration of each interface. */ |
d62a17ae | 1108 | static int rip_interface_config_write(struct vty *vty) |
1109 | { | |
ae7b826a | 1110 | struct vrf *vrf; |
94b117b2 | 1111 | int write = 0; |
d62a17ae | 1112 | |
ae7b826a RW |
1113 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { |
1114 | struct interface *ifp; | |
d62a17ae | 1115 | |
ae7b826a RW |
1116 | FOR_ALL_INTERFACES (vrf, ifp) { |
1117 | struct lyd_node *dnode; | |
1118 | ||
3bb513c3 | 1119 | dnode = yang_dnode_getf( |
ae7b826a RW |
1120 | running_config->dnode, |
1121 | "/frr-interface:lib/interface[name='%s'][vrf='%s']", | |
1122 | ifp->name, vrf->name); | |
1123 | if (dnode == NULL) | |
1124 | continue; | |
d62a17ae | 1125 | |
ae7b826a RW |
1126 | write = 1; |
1127 | nb_cli_show_dnode_cmds(vty, dnode, false); | |
1128 | } | |
d62a17ae | 1129 | } |
94b117b2 RW |
1130 | |
1131 | return write; | |
d62a17ae | 1132 | } |
1133 | ||
045c5389 | 1134 | int rip_show_network_config(struct vty *vty, struct rip *rip) |
d62a17ae | 1135 | { |
1136 | unsigned int i; | |
1137 | char *ifname; | |
1138 | struct route_node *node; | |
1139 | ||
1140 | /* Network type RIP enable interface statement. */ | |
1205fdc4 | 1141 | for (node = route_top(rip->enable_network); node; |
d62a17ae | 1142 | node = route_next(node)) |
1143 | if (node->info) | |
53bb7f9b | 1144 | vty_out(vty, " %pFX\n", &node->p); |
d62a17ae | 1145 | |
1146 | /* Interface name RIP enable statement. */ | |
ca046902 RW |
1147 | for (i = 0; i < vector_active(rip->enable_interface); i++) |
1148 | if ((ifname = vector_slot(rip->enable_interface, i)) != NULL) | |
44f2f852 | 1149 | vty_out(vty, " %s\n", ifname); |
d62a17ae | 1150 | |
1151 | /* RIP neighbors listing. */ | |
1152 | for (node = route_top(rip->neighbor); node; node = route_next(node)) | |
1153 | if (node->info) | |
53bb7f9b | 1154 | vty_out(vty, " %pI4\n", &node->p.u.prefix4); |
718e3744 | 1155 | |
d62a17ae | 1156 | return 0; |
1157 | } | |
1158 | ||
ae7b826a RW |
1159 | void rip_interface_sync(struct interface *ifp) |
1160 | { | |
1161 | struct vrf *vrf; | |
1162 | ||
a36898e7 | 1163 | vrf = vrf_lookup_by_id(ifp->vrf_id); |
ae7b826a RW |
1164 | if (vrf) { |
1165 | struct rip_interface *ri; | |
1166 | ||
1167 | ri = ifp->info; | |
1168 | if (ri) | |
1169 | ri->rip = vrf->info; | |
1170 | } | |
1171 | } | |
1172 | ||
718e3744 | 1173 | /* Called when interface structure allocated. */ |
d62a17ae | 1174 | static int rip_interface_new_hook(struct interface *ifp) |
718e3744 | 1175 | { |
d62a17ae | 1176 | ifp->info = rip_interface_new(); |
ae7b826a RW |
1177 | rip_interface_sync(ifp); |
1178 | ||
d62a17ae | 1179 | return 0; |
718e3744 | 1180 | } |
1181 | ||
1182 | /* Called when interface structure deleted. */ | |
d62a17ae | 1183 | static int rip_interface_delete_hook(struct interface *ifp) |
718e3744 | 1184 | { |
72010aca | 1185 | rip_interface_reset(ifp->info); |
d62a17ae | 1186 | XFREE(MTYPE_RIP_INTERFACE, ifp->info); |
d62a17ae | 1187 | return 0; |
718e3744 | 1188 | } |
1189 | ||
1190 | /* Allocate and initialize interface vector. */ | |
d62a17ae | 1191 | void rip_if_init(void) |
718e3744 | 1192 | { |
d62a17ae | 1193 | /* Default initial size of interface vector. */ |
ce19a04a DL |
1194 | hook_register_prio(if_add, 0, rip_interface_new_hook); |
1195 | hook_register_prio(if_del, 0, rip_interface_delete_hook); | |
d62a17ae | 1196 | |
d62a17ae | 1197 | /* Install interface node. */ |
9da01b0b | 1198 | if_cmd_init(rip_interface_config_write); |
138c5a74 DS |
1199 | if_zapi_callbacks(rip_ifp_create, rip_ifp_up, |
1200 | rip_ifp_down, rip_ifp_destroy); | |
718e3744 | 1201 | } |