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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
718e3744 | 2 | /* Interface related function for RIP. |
3 | * Copyright (C) 1997, 98 Kunihiro Ishiguro <kunihiro@zebra.org> | |
718e3744 | 4 | */ |
5 | ||
6 | #include <zebra.h> | |
7 | ||
8 | #include "command.h" | |
9 | #include "if.h" | |
10 | #include "sockunion.h" | |
11 | #include "prefix.h" | |
12 | #include "memory.h" | |
13 | #include "network.h" | |
14 | #include "table.h" | |
15 | #include "log.h" | |
16 | #include "stream.h" | |
24a58196 | 17 | #include "frrevent.h" |
718e3744 | 18 | #include "zclient.h" |
19 | #include "filter.h" | |
20 | #include "sockopt.h" | |
edd7c245 | 21 | #include "privs.h" |
77cbe4a1 | 22 | #include "lib_errors.h" |
f0ab22fb | 23 | #include "northbound_cli.h" |
718e3744 | 24 | |
25 | #include "zebra/connected.h" | |
26 | ||
27 | #include "ripd/ripd.h" | |
2da9c4c2 | 28 | #include "ripd/rip_bfd.h" |
718e3744 | 29 | #include "ripd/rip_debug.h" |
dc63bfd4 | 30 | #include "ripd/rip_interface.h" |
6b0655a2 | 31 | |
bf8d3d6a DL |
32 | DEFINE_MTYPE_STATIC(RIPD, RIP_INTERFACE, "RIP interface"); |
33 | DEFINE_MTYPE(RIPD, RIP_INTERFACE_STRING, "RIP Interface String"); | |
8451921b DL |
34 | DEFINE_HOOK(rip_ifaddr_add, (struct connected * ifc), (ifc)); |
35 | DEFINE_HOOK(rip_ifaddr_del, (struct connected * ifc), (ifc)); | |
3012671f | 36 | |
dc63bfd4 | 37 | /* static prototypes */ |
d62a17ae | 38 | static void rip_enable_apply(struct interface *); |
39 | static void rip_passive_interface_apply(struct interface *); | |
dc63bfd4 | 40 | static int rip_if_down(struct interface *ifp); |
045c5389 | 41 | static int rip_enable_if_lookup(struct rip *rip, const char *ifname); |
d62a17ae | 42 | static int rip_enable_network_lookup2(struct connected *connected); |
045c5389 | 43 | static void rip_enable_apply_all(struct rip *rip); |
6b0655a2 | 44 | |
d62a17ae | 45 | const struct message ri_version_msg[] = {{RI_RIP_VERSION_1, "1"}, |
46 | {RI_RIP_VERSION_2, "2"}, | |
47 | {RI_RIP_VERSION_1_AND_2, "1 2"}, | |
48 | {RI_RIP_VERSION_NONE, "none"}, | |
49 | {0}}; | |
718e3744 | 50 | |
718e3744 | 51 | /* Join to the RIP version 2 multicast group. */ |
d62a17ae | 52 | static int ipv4_multicast_join(int sock, struct in_addr group, |
53 | struct in_addr ifa, ifindex_t ifindex) | |
718e3744 | 54 | { |
d62a17ae | 55 | int ret; |
718e3744 | 56 | |
d62a17ae | 57 | ret = setsockopt_ipv4_multicast(sock, IP_ADD_MEMBERSHIP, ifa, |
58 | group.s_addr, ifindex); | |
718e3744 | 59 | |
d62a17ae | 60 | if (ret < 0) |
61 | zlog_info("can't setsockopt IP_ADD_MEMBERSHIP %s", | |
62 | safe_strerror(errno)); | |
718e3744 | 63 | |
d62a17ae | 64 | return ret; |
718e3744 | 65 | } |
66 | ||
67 | /* Leave from the RIP version 2 multicast group. */ | |
d62a17ae | 68 | static int ipv4_multicast_leave(int sock, struct in_addr group, |
69 | struct in_addr ifa, ifindex_t ifindex) | |
718e3744 | 70 | { |
d62a17ae | 71 | int ret; |
718e3744 | 72 | |
d62a17ae | 73 | ret = setsockopt_ipv4_multicast(sock, IP_DROP_MEMBERSHIP, ifa, |
74 | group.s_addr, ifindex); | |
718e3744 | 75 | |
d62a17ae | 76 | if (ret < 0) |
77 | zlog_info("can't setsockopt IP_DROP_MEMBERSHIP"); | |
718e3744 | 78 | |
d62a17ae | 79 | return ret; |
718e3744 | 80 | } |
6b0655a2 | 81 | |
d62a17ae | 82 | static void rip_interface_reset(struct rip_interface *); |
1dec2166 | 83 | |
718e3744 | 84 | /* Allocate new RIP's interface configuration. */ |
d62a17ae | 85 | static struct rip_interface *rip_interface_new(void) |
718e3744 | 86 | { |
d62a17ae | 87 | struct rip_interface *ri; |
718e3744 | 88 | |
d62a17ae | 89 | ri = XCALLOC(MTYPE_RIP_INTERFACE, sizeof(struct rip_interface)); |
718e3744 | 90 | |
d62a17ae | 91 | rip_interface_reset(ri); |
718e3744 | 92 | |
d62a17ae | 93 | return ri; |
718e3744 | 94 | } |
95 | ||
d62a17ae | 96 | void rip_interface_multicast_set(int sock, struct connected *connected) |
718e3744 | 97 | { |
d62a17ae | 98 | struct in_addr addr; |
4a3867d0 | 99 | |
d62a17ae | 100 | assert(connected != NULL); |
4a3867d0 | 101 | |
d62a17ae | 102 | addr = CONNECTED_ID(connected)->u.prefix4; |
103 | ||
104 | if (setsockopt_ipv4_multicast_if(sock, addr, connected->ifp->ifindex) | |
105 | < 0) { | |
106 | zlog_warn( | |
3efd0893 | 107 | "Can't setsockopt IP_MULTICAST_IF on fd %d to ifindex %d for interface %s", |
d62a17ae | 108 | sock, connected->ifp->ifindex, connected->ifp->name); |
109 | } | |
4a3867d0 | 110 | |
d62a17ae | 111 | return; |
3fb9cd6e | 112 | } |
718e3744 | 113 | |
114 | /* Send RIP request packet to specified interface. */ | |
d7c0a89a | 115 | static void rip_request_interface_send(struct interface *ifp, uint8_t version) |
718e3744 | 116 | { |
d62a17ae | 117 | struct sockaddr_in to; |
718e3744 | 118 | |
d62a17ae | 119 | /* RIPv2 support multicast. */ |
120 | if (version == RIPv2 && if_is_multicast(ifp)) { | |
718e3744 | 121 | |
d62a17ae | 122 | if (IS_RIP_DEBUG_EVENT) |
123 | zlog_debug("multicast request on %s", ifp->name); | |
718e3744 | 124 | |
d62a17ae | 125 | rip_request_send(NULL, ifp, version, NULL); |
126 | return; | |
127 | } | |
718e3744 | 128 | |
d62a17ae | 129 | /* RIPv1 and non multicast interface. */ |
130 | if (if_is_pointopoint(ifp) || if_is_broadcast(ifp)) { | |
131 | struct listnode *cnode, *cnnode; | |
132 | struct connected *connected; | |
133 | ||
134 | if (IS_RIP_DEBUG_EVENT) | |
135 | zlog_debug("broadcast request to %s", ifp->name); | |
136 | ||
137 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, | |
138 | connected)) { | |
2e37ad7f RW |
139 | if (connected->address->family != AF_INET) |
140 | continue; | |
141 | ||
142 | memset(&to, 0, sizeof(struct sockaddr_in)); | |
143 | to.sin_port = htons(RIP_PORT_DEFAULT); | |
144 | if (connected->destination) | |
145 | /* use specified broadcast or peer | |
146 | * destination addr */ | |
147 | to.sin_addr = connected->destination->u.prefix4; | |
148 | else if (connected->address->prefixlen | |
936fbaef | 149 | < IPV4_MAX_BITLEN) |
2e37ad7f RW |
150 | /* calculate the appropriate broadcast |
151 | * address */ | |
152 | to.sin_addr.s_addr = ipv4_broadcast_addr( | |
153 | connected->address->u.prefix4.s_addr, | |
154 | connected->address->prefixlen); | |
155 | else | |
156 | /* do not know where to send the packet | |
157 | */ | |
158 | continue; | |
159 | ||
160 | if (IS_RIP_DEBUG_EVENT) | |
53bb7f9b MS |
161 | zlog_debug("SEND request to %pI4", |
162 | &to.sin_addr); | |
2e37ad7f RW |
163 | |
164 | rip_request_send(&to, ifp, version, connected); | |
d62a17ae | 165 | } |
718e3744 | 166 | } |
718e3744 | 167 | } |
168 | ||
169 | /* This will be executed when interface goes up. */ | |
d62a17ae | 170 | static void rip_request_interface(struct interface *ifp) |
718e3744 | 171 | { |
d62a17ae | 172 | struct rip_interface *ri; |
2e37ad7f | 173 | int vsend; |
718e3744 | 174 | |
d62a17ae | 175 | /* In default ripd doesn't send RIP_REQUEST to the loopback interface. |
176 | */ | |
177 | if (if_is_loopback(ifp)) | |
178 | return; | |
718e3744 | 179 | |
d62a17ae | 180 | /* If interface is down, don't send RIP packet. */ |
181 | if (!if_is_operative(ifp)) | |
182 | return; | |
718e3744 | 183 | |
d62a17ae | 184 | /* Fetch RIP interface information. */ |
185 | ri = ifp->info; | |
718e3744 | 186 | |
d62a17ae | 187 | /* If there is no version configuration in the interface, |
188 | use rip's version setting. */ | |
045c5389 | 189 | vsend = ((ri->ri_send == RI_RIP_UNSPEC) ? ri->rip->version_send |
2e37ad7f RW |
190 | : ri->ri_send); |
191 | if (vsend & RIPv1) | |
192 | rip_request_interface_send(ifp, RIPv1); | |
193 | if (vsend & RIPv2) | |
194 | rip_request_interface_send(ifp, RIPv2); | |
718e3744 | 195 | } |
196 | ||
718e3744 | 197 | /* Multicast packet receive socket. */ |
d62a17ae | 198 | static int rip_multicast_join(struct interface *ifp, int sock) |
718e3744 | 199 | { |
d62a17ae | 200 | struct listnode *cnode; |
201 | struct connected *ifc; | |
718e3744 | 202 | |
d62a17ae | 203 | if (if_is_operative(ifp) && if_is_multicast(ifp)) { |
204 | if (IS_RIP_DEBUG_EVENT) | |
205 | zlog_debug("multicast join at %s", ifp->name); | |
718e3744 | 206 | |
d62a17ae | 207 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, ifc)) { |
208 | struct prefix_ipv4 *p; | |
209 | struct in_addr group; | |
210 | ||
211 | p = (struct prefix_ipv4 *)ifc->address; | |
212 | ||
213 | if (p->family != AF_INET) | |
214 | continue; | |
215 | ||
216 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
217 | if (ipv4_multicast_join(sock, group, p->prefix, | |
218 | ifp->ifindex) | |
219 | < 0) | |
220 | return -1; | |
221 | else | |
222 | return 0; | |
223 | } | |
718e3744 | 224 | } |
d62a17ae | 225 | return 0; |
718e3744 | 226 | } |
227 | ||
228 | /* Leave from multicast group. */ | |
d62a17ae | 229 | static void rip_multicast_leave(struct interface *ifp, int sock) |
718e3744 | 230 | { |
d62a17ae | 231 | struct listnode *cnode; |
232 | struct connected *connected; | |
718e3744 | 233 | |
d62a17ae | 234 | if (if_is_up(ifp) && if_is_multicast(ifp)) { |
235 | if (IS_RIP_DEBUG_EVENT) | |
236 | zlog_debug("multicast leave from %s", ifp->name); | |
718e3744 | 237 | |
d62a17ae | 238 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
239 | struct prefix_ipv4 *p; | |
240 | struct in_addr group; | |
241 | ||
242 | p = (struct prefix_ipv4 *)connected->address; | |
243 | ||
244 | if (p->family != AF_INET) | |
245 | continue; | |
246 | ||
247 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
248 | if (ipv4_multicast_leave(sock, group, p->prefix, | |
249 | ifp->ifindex) | |
250 | == 0) | |
251 | return; | |
252 | } | |
253 | } | |
718e3744 | 254 | } |
255 | ||
256 | /* Is there and address on interface that I could use ? */ | |
d62a17ae | 257 | static int rip_if_ipv4_address_check(struct interface *ifp) |
718e3744 | 258 | { |
d62a17ae | 259 | struct listnode *nn; |
260 | struct connected *connected; | |
261 | int count = 0; | |
718e3744 | 262 | |
d62a17ae | 263 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, nn, connected)) { |
264 | struct prefix *p; | |
718e3744 | 265 | |
d62a17ae | 266 | p = connected->address; |
267 | ||
268 | if (p->family == AF_INET) | |
269 | count++; | |
270 | } | |
718e3744 | 271 | |
d62a17ae | 272 | return count; |
718e3744 | 273 | } |
d62a17ae | 274 | |
31a476c7 | 275 | |
276 | /* Does this address belongs to me ? */ | |
045c5389 | 277 | int if_check_address(struct rip *rip, struct in_addr addr) |
d62a17ae | 278 | { |
d62a17ae | 279 | struct interface *ifp; |
31a476c7 | 280 | |
ae7b826a | 281 | FOR_ALL_INTERFACES (rip->vrf, ifp) { |
d62a17ae | 282 | struct listnode *cnode; |
283 | struct connected *connected; | |
31a476c7 | 284 | |
d62a17ae | 285 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
286 | struct prefix_ipv4 *p; | |
31a476c7 | 287 | |
d62a17ae | 288 | p = (struct prefix_ipv4 *)connected->address; |
289 | ||
290 | if (p->family != AF_INET) | |
291 | continue; | |
292 | ||
293 | if (IPV4_ADDR_CMP(&p->prefix, &addr) == 0) | |
294 | return 1; | |
295 | } | |
31a476c7 | 296 | } |
d62a17ae | 297 | return 0; |
31a476c7 | 298 | } |
299 | ||
61879cab | 300 | /* Interface link down message processing. */ |
b0b69e59 | 301 | static int rip_ifp_down(struct interface *ifp) |
718e3744 | 302 | { |
ae7b826a | 303 | rip_interface_sync(ifp); |
d62a17ae | 304 | rip_if_down(ifp); |
718e3744 | 305 | |
096f7609 | 306 | if (IS_RIP_DEBUG_ZEBRA) |
d62a17ae | 307 | zlog_debug( |
5434aac4 | 308 | "interface %s vrf %s(%u) index %d flags %llx metric %d mtu %d is down", |
096f7609 IR |
309 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id, |
310 | ifp->ifindex, (unsigned long long)ifp->flags, | |
311 | ifp->metric, ifp->mtu); | |
d62a17ae | 312 | |
313 | return 0; | |
718e3744 | 314 | } |
315 | ||
61879cab | 316 | /* Interface link up message processing */ |
ddbf3e60 | 317 | static int rip_ifp_up(struct interface *ifp) |
718e3744 | 318 | { |
096f7609 | 319 | if (IS_RIP_DEBUG_ZEBRA) |
d62a17ae | 320 | zlog_debug( |
5434aac4 | 321 | "interface %s vrf %s(%u) index %d flags %#llx metric %d mtu %d is up", |
096f7609 IR |
322 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id, |
323 | ifp->ifindex, (unsigned long long)ifp->flags, | |
324 | ifp->metric, ifp->mtu); | |
ae7b826a RW |
325 | |
326 | rip_interface_sync(ifp); | |
718e3744 | 327 | |
d62a17ae | 328 | /* Check if this interface is RIP enabled or not.*/ |
329 | rip_enable_apply(ifp); | |
718e3744 | 330 | |
d62a17ae | 331 | /* Check for a passive interface */ |
332 | rip_passive_interface_apply(ifp); | |
718e3744 | 333 | |
d62a17ae | 334 | /* Apply distribute list to the all interface. */ |
335 | rip_distribute_update_interface(ifp); | |
718e3744 | 336 | |
d62a17ae | 337 | return 0; |
718e3744 | 338 | } |
339 | ||
61879cab | 340 | /* Interface addition message from zebra. */ |
ef7bd2a3 | 341 | static int rip_ifp_create(struct interface *ifp) |
718e3744 | 342 | { |
ae7b826a | 343 | rip_interface_sync(ifp); |
718e3744 | 344 | |
096f7609 | 345 | if (IS_RIP_DEBUG_ZEBRA) |
d62a17ae | 346 | zlog_debug( |
5434aac4 | 347 | "interface add %s vrf %s(%u) index %d flags %#llx metric %d mtu %d", |
096f7609 IR |
348 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id, |
349 | ifp->ifindex, (unsigned long long)ifp->flags, | |
350 | ifp->metric, ifp->mtu); | |
718e3744 | 351 | |
d62a17ae | 352 | /* Check if this interface is RIP enabled or not.*/ |
353 | rip_enable_apply(ifp); | |
718e3744 | 354 | |
d62a17ae | 355 | /* Check for a passive interface */ |
356 | rip_passive_interface_apply(ifp); | |
718e3744 | 357 | |
d62a17ae | 358 | /* Apply distribute list to the all interface. */ |
359 | rip_distribute_update_interface(ifp); | |
718e3744 | 360 | |
d62a17ae | 361 | /* rip_request_neighbor_all (); */ |
16705130 | 362 | |
d62a17ae | 363 | /* Check interface routemap. */ |
364 | rip_if_rmap_update_interface(ifp); | |
365 | ||
366 | return 0; | |
718e3744 | 367 | } |
368 | ||
3c3c3252 | 369 | static int rip_ifp_destroy(struct interface *ifp) |
718e3744 | 370 | { |
ae7b826a | 371 | rip_interface_sync(ifp); |
d62a17ae | 372 | if (if_is_up(ifp)) { |
373 | rip_if_down(ifp); | |
374 | } | |
718e3744 | 375 | |
13c5f95e DS |
376 | if (IS_RIP_DEBUG_ZEBRA) |
377 | zlog_debug( | |
378 | "interface delete %s vrf %s(%u) index %d flags %#llx metric %d mtu %d", | |
096f7609 IR |
379 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id, |
380 | ifp->ifindex, (unsigned long long)ifp->flags, | |
381 | ifp->metric, ifp->mtu); | |
718e3744 | 382 | |
d62a17ae | 383 | return 0; |
718e3744 | 384 | } |
385 | ||
ae7b826a | 386 | /* VRF update for an interface. */ |
121f9dee | 387 | int rip_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
ae7b826a RW |
388 | { |
389 | struct interface *ifp; | |
390 | vrf_id_t new_vrf_id; | |
391 | ||
392 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, | |
393 | &new_vrf_id); | |
394 | if (!ifp) | |
395 | return 0; | |
396 | ||
5434aac4 | 397 | if (IS_RIP_DEBUG_ZEBRA) { |
5434aac4 DS |
398 | struct vrf *nvrf = vrf_lookup_by_id(new_vrf_id); |
399 | ||
400 | zlog_debug("interface %s VRF change vrf %s(%u) new vrf %s(%u)", | |
096f7609 IR |
401 | ifp->name, ifp->vrf->name, vrf_id, VRF_LOGNAME(nvrf), |
402 | new_vrf_id); | |
5434aac4 | 403 | } |
ae7b826a | 404 | |
a36898e7 | 405 | if_update_to_new_vrf(ifp, new_vrf_id); |
ae7b826a RW |
406 | rip_interface_sync(ifp); |
407 | ||
408 | return 0; | |
409 | } | |
410 | ||
d62a17ae | 411 | static void rip_interface_clean(struct rip_interface *ri) |
4305dfd1 | 412 | { |
d62a17ae | 413 | ri->enable_network = 0; |
414 | ri->enable_interface = 0; | |
415 | ri->running = 0; | |
718e3744 | 416 | |
e16d030c | 417 | EVENT_OFF(ri->t_wakeup); |
4305dfd1 | 418 | } |
718e3744 | 419 | |
045c5389 | 420 | void rip_interfaces_clean(struct rip *rip) |
718e3744 | 421 | { |
d62a17ae | 422 | struct interface *ifp; |
718e3744 | 423 | |
ae7b826a | 424 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 425 | rip_interface_clean(ifp->info); |
1dec2166 | 426 | } |
718e3744 | 427 | |
d62a17ae | 428 | static void rip_interface_reset(struct rip_interface *ri) |
4305dfd1 | 429 | { |
94b117b2 RW |
430 | ri->auth_type = yang_get_default_enum("%s/authentication-scheme/mode", |
431 | RIP_IFACE); | |
432 | ri->md5_auth_len = yang_get_default_enum( | |
433 | "%s/authentication-scheme/md5-auth-length", RIP_IFACE); | |
718e3744 | 434 | |
d62a17ae | 435 | /* Set default split-horizon behavior. If the interface is Frame |
436 | Relay or SMDS is enabled, the default value for split-horizon is | |
437 | off. But currently Zebra does detect Frame Relay or SMDS | |
438 | interface. So all interface is set to split horizon. */ | |
94b117b2 RW |
439 | ri->split_horizon = |
440 | yang_get_default_enum("%s/split-horizon", RIP_IFACE); | |
718e3744 | 441 | |
94b117b2 RW |
442 | ri->ri_send = yang_get_default_enum("%s/version-send", RIP_IFACE); |
443 | ri->ri_receive = yang_get_default_enum("%s/version-receive", RIP_IFACE); | |
444 | ri->v2_broadcast = yang_get_default_bool("%s/v2-broadcast", RIP_IFACE); | |
f90310cf | 445 | |
0a22ddfb | 446 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->auth_str); |
03c20031 | 447 | |
0a22ddfb | 448 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->key_chain); |
03c20031 | 449 | |
d62a17ae | 450 | ri->list[RIP_FILTER_IN] = NULL; |
451 | ri->list[RIP_FILTER_OUT] = NULL; | |
718e3744 | 452 | |
d62a17ae | 453 | ri->prefix[RIP_FILTER_IN] = NULL; |
454 | ri->prefix[RIP_FILTER_OUT] = NULL; | |
718e3744 | 455 | |
d62a17ae | 456 | ri->recv_badpackets = 0; |
457 | ri->recv_badroutes = 0; | |
458 | ri->sent_updates = 0; | |
4305dfd1 | 459 | |
d62a17ae | 460 | ri->passive = 0; |
2da9c4c2 | 461 | XFREE(MTYPE_RIP_BFD_PROFILE, ri->bfd.profile); |
718e3744 | 462 | |
d62a17ae | 463 | rip_interface_clean(ri); |
4305dfd1 | 464 | } |
718e3744 | 465 | |
d62a17ae | 466 | int rip_if_down(struct interface *ifp) |
718e3744 | 467 | { |
045c5389 | 468 | struct rip *rip; |
d62a17ae | 469 | struct route_node *rp; |
470 | struct rip_info *rinfo; | |
471 | struct rip_interface *ri = NULL; | |
472 | struct list *list = NULL; | |
473 | struct listnode *listnode = NULL, *nextnode = NULL; | |
045c5389 RW |
474 | |
475 | ri = ifp->info; | |
8f0c2688 | 476 | |
e16d030c | 477 | EVENT_OFF(ri->t_wakeup); |
8f0c2688 | 478 | |
045c5389 | 479 | rip = ri->rip; |
d62a17ae | 480 | if (rip) { |
481 | for (rp = route_top(rip->table); rp; rp = route_next(rp)) | |
482 | if ((list = rp->info) != NULL) | |
483 | for (ALL_LIST_ELEMENTS(list, listnode, nextnode, | |
484 | rinfo)) | |
dd127197 | 485 | if (rinfo->nh.ifindex == ifp->ifindex) |
045c5389 | 486 | rip_ecmp_delete(rip, rinfo); |
d62a17ae | 487 | |
488 | if (ri->running) { | |
489 | if (IS_RIP_DEBUG_EVENT) | |
490 | zlog_debug("turn off %s", ifp->name); | |
491 | ||
492 | /* Leave from multicast group. */ | |
493 | rip_multicast_leave(ifp, rip->sock); | |
494 | ||
495 | ri->running = 0; | |
496 | } | |
497 | } | |
498 | ||
499 | return 0; | |
718e3744 | 500 | } |
501 | ||
d62a17ae | 502 | static void rip_apply_address_add(struct connected *ifc) |
dc63bfd4 | 503 | { |
045c5389 RW |
504 | struct rip_interface *ri = ifc->ifp->info; |
505 | struct rip *rip = ri->rip; | |
d62a17ae | 506 | struct prefix_ipv4 address; |
3f5682c8 | 507 | struct nexthop nh; |
d62a17ae | 508 | struct prefix *p; |
16705130 | 509 | |
d62a17ae | 510 | if (!rip) |
511 | return; | |
16705130 | 512 | |
d62a17ae | 513 | if (!if_is_up(ifc->ifp)) |
514 | return; | |
16705130 | 515 | |
d62a17ae | 516 | p = ifc->address; |
16705130 | 517 | |
d62a17ae | 518 | memset(&address, 0, sizeof(address)); |
3f5682c8 DS |
519 | memset(&nh, 0, sizeof(nh)); |
520 | ||
d62a17ae | 521 | address.family = p->family; |
522 | address.prefix = p->u.prefix4; | |
523 | address.prefixlen = p->prefixlen; | |
524 | apply_mask_ipv4(&address); | |
16705130 | 525 | |
3f5682c8 DS |
526 | nh.ifindex = ifc->ifp->ifindex; |
527 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
528 | ||
d62a17ae | 529 | /* Check if this interface is RIP enabled or not |
530 | or Check if this address's prefix is RIP enabled */ | |
045c5389 | 531 | if ((rip_enable_if_lookup(rip, ifc->ifp->name) >= 0) |
d62a17ae | 532 | || (rip_enable_network_lookup2(ifc) >= 0)) |
045c5389 RW |
533 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
534 | RIP_ROUTE_INTERFACE, &address, &nh, 0, 0, | |
535 | 0); | |
16705130 | 536 | } |
537 | ||
121f9dee | 538 | int rip_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 539 | { |
d62a17ae | 540 | struct connected *ifc; |
541 | struct prefix *p; | |
718e3744 | 542 | |
d62a17ae | 543 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, |
544 | zclient->ibuf, vrf_id); | |
718e3744 | 545 | |
d62a17ae | 546 | if (ifc == NULL) |
547 | return 0; | |
718e3744 | 548 | |
d62a17ae | 549 | p = ifc->address; |
718e3744 | 550 | |
d62a17ae | 551 | if (p->family == AF_INET) { |
552 | if (IS_RIP_DEBUG_ZEBRA) | |
f42238f8 | 553 | zlog_debug("connected address %pFX is added", p); |
16705130 | 554 | |
d62a17ae | 555 | rip_enable_apply(ifc->ifp); |
556 | /* Check if this prefix needs to be redistributed */ | |
557 | rip_apply_address_add(ifc); | |
718e3744 | 558 | |
d62a17ae | 559 | hook_call(rip_ifaddr_add, ifc); |
560 | } | |
718e3744 | 561 | |
d62a17ae | 562 | return 0; |
718e3744 | 563 | } |
564 | ||
d62a17ae | 565 | static void rip_apply_address_del(struct connected *ifc) |
566 | { | |
045c5389 RW |
567 | struct rip_interface *ri = ifc->ifp->info; |
568 | struct rip *rip = ri->rip; | |
d62a17ae | 569 | struct prefix_ipv4 address; |
570 | struct prefix *p; | |
16705130 | 571 | |
d62a17ae | 572 | if (!rip) |
573 | return; | |
16705130 | 574 | |
d62a17ae | 575 | if (!if_is_up(ifc->ifp)) |
576 | return; | |
16705130 | 577 | |
d62a17ae | 578 | p = ifc->address; |
16705130 | 579 | |
d62a17ae | 580 | memset(&address, 0, sizeof(address)); |
581 | address.family = p->family; | |
582 | address.prefix = p->u.prefix4; | |
583 | address.prefixlen = p->prefixlen; | |
584 | apply_mask_ipv4(&address); | |
16705130 | 585 | |
045c5389 | 586 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, |
d62a17ae | 587 | &address, ifc->ifp->ifindex); |
16705130 | 588 | } |
589 | ||
121f9dee | 590 | int rip_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 591 | { |
d62a17ae | 592 | struct connected *ifc; |
593 | struct prefix *p; | |
718e3744 | 594 | |
d62a17ae | 595 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, |
596 | zclient->ibuf, vrf_id); | |
718e3744 | 597 | |
d62a17ae | 598 | if (ifc) { |
599 | p = ifc->address; | |
600 | if (p->family == AF_INET) { | |
601 | if (IS_RIP_DEBUG_ZEBRA) | |
f42238f8 DS |
602 | zlog_debug("connected address %pFX is deleted", |
603 | p); | |
16705130 | 604 | |
d62a17ae | 605 | hook_call(rip_ifaddr_del, ifc); |
718e3744 | 606 | |
f89c0aed | 607 | /* Chech whether this prefix needs to be removed */ |
d62a17ae | 608 | rip_apply_address_del(ifc); |
609 | } | |
718e3744 | 610 | |
721c0857 | 611 | connected_free(&ifc); |
d62a17ae | 612 | } |
718e3744 | 613 | |
d62a17ae | 614 | return 0; |
718e3744 | 615 | } |
6b0655a2 | 616 | |
718e3744 | 617 | /* Check interface is enabled by network statement. */ |
f89c0aed | 618 | /* Check whether the interface has at least a connected prefix that |
16705130 | 619 | * is within the ripng_enable_network table. */ |
d62a17ae | 620 | static int rip_enable_network_lookup_if(struct interface *ifp) |
621 | { | |
045c5389 RW |
622 | struct rip_interface *ri = ifp->info; |
623 | struct rip *rip = ri->rip; | |
d62a17ae | 624 | struct listnode *node, *nnode; |
625 | struct connected *connected; | |
626 | struct prefix_ipv4 address; | |
627 | ||
1205fdc4 RW |
628 | if (!rip) |
629 | return -1; | |
630 | ||
d62a17ae | 631 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { |
632 | struct prefix *p; | |
dc7204b7 | 633 | struct route_node *n; |
d62a17ae | 634 | |
635 | p = connected->address; | |
636 | ||
637 | if (p->family == AF_INET) { | |
638 | address.family = AF_INET; | |
639 | address.prefix = p->u.prefix4; | |
640 | address.prefixlen = IPV4_MAX_BITLEN; | |
641 | ||
1205fdc4 | 642 | n = route_node_match(rip->enable_network, |
dc7204b7 A |
643 | (struct prefix *)&address); |
644 | if (n) { | |
645 | route_unlock_node(n); | |
d62a17ae | 646 | return 1; |
647 | } | |
648 | } | |
649 | } | |
650 | return -1; | |
718e3744 | 651 | } |
652 | ||
f89c0aed | 653 | /* Check whether connected is within the ripng_enable_network table. */ |
045c5389 | 654 | static int rip_enable_network_lookup2(struct connected *connected) |
16705130 | 655 | { |
045c5389 RW |
656 | struct rip_interface *ri = connected->ifp->info; |
657 | struct rip *rip = ri->rip; | |
d62a17ae | 658 | struct prefix_ipv4 address; |
659 | struct prefix *p; | |
16705130 | 660 | |
d62a17ae | 661 | p = connected->address; |
16705130 | 662 | |
d62a17ae | 663 | if (p->family == AF_INET) { |
664 | struct route_node *node; | |
16705130 | 665 | |
d62a17ae | 666 | address.family = p->family; |
667 | address.prefix = p->u.prefix4; | |
668 | address.prefixlen = IPV4_MAX_BITLEN; | |
16705130 | 669 | |
d62a17ae | 670 | /* LPM on p->family, p->u.prefix4/IPV4_MAX_BITLEN within |
1205fdc4 RW |
671 | * rip->enable_network */ |
672 | node = route_node_match(rip->enable_network, | |
d62a17ae | 673 | (struct prefix *)&address); |
16705130 | 674 | |
d62a17ae | 675 | if (node) { |
676 | route_unlock_node(node); | |
677 | return 1; | |
678 | } | |
679 | } | |
16705130 | 680 | |
d62a17ae | 681 | return -1; |
16705130 | 682 | } |
718e3744 | 683 | /* Add RIP enable network. */ |
045c5389 | 684 | int rip_enable_network_add(struct rip *rip, struct prefix *p) |
718e3744 | 685 | { |
d62a17ae | 686 | struct route_node *node; |
718e3744 | 687 | |
1205fdc4 | 688 | node = route_node_get(rip->enable_network, p); |
718e3744 | 689 | |
d62a17ae | 690 | if (node->info) { |
691 | route_unlock_node(node); | |
3d7a1be8 | 692 | return NB_ERR_INCONSISTENCY; |
d62a17ae | 693 | } else |
694 | node->info = (void *)1; | |
718e3744 | 695 | |
d62a17ae | 696 | /* XXX: One should find a better solution than a generic one */ |
045c5389 | 697 | rip_enable_apply_all(rip); |
16705130 | 698 | |
3d7a1be8 | 699 | return NB_OK; |
718e3744 | 700 | } |
701 | ||
702 | /* Delete RIP enable network. */ | |
045c5389 | 703 | int rip_enable_network_delete(struct rip *rip, struct prefix *p) |
718e3744 | 704 | { |
d62a17ae | 705 | struct route_node *node; |
718e3744 | 706 | |
1205fdc4 | 707 | node = route_node_lookup(rip->enable_network, p); |
d62a17ae | 708 | if (node) { |
709 | node->info = NULL; | |
718e3744 | 710 | |
d62a17ae | 711 | /* Unlock info lock. */ |
712 | route_unlock_node(node); | |
718e3744 | 713 | |
d62a17ae | 714 | /* Unlock lookup lock. */ |
715 | route_unlock_node(node); | |
718e3744 | 716 | |
d62a17ae | 717 | /* XXX: One should find a better solution than a generic one */ |
045c5389 | 718 | rip_enable_apply_all(rip); |
16705130 | 719 | |
3d7a1be8 | 720 | return NB_OK; |
d62a17ae | 721 | } |
3d7a1be8 RW |
722 | |
723 | return NB_ERR_INCONSISTENCY; | |
718e3744 | 724 | } |
725 | ||
726 | /* Check interface is enabled by ifname statement. */ | |
045c5389 | 727 | static int rip_enable_if_lookup(struct rip *rip, const char *ifname) |
718e3744 | 728 | { |
d62a17ae | 729 | unsigned int i; |
730 | char *str; | |
718e3744 | 731 | |
ca046902 RW |
732 | if (!rip) |
733 | return -1; | |
734 | ||
735 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
736 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) | |
d62a17ae | 737 | if (strcmp(str, ifname) == 0) |
738 | return i; | |
739 | return -1; | |
718e3744 | 740 | } |
741 | ||
742 | /* Add interface to rip_enable_if. */ | |
045c5389 | 743 | int rip_enable_if_add(struct rip *rip, const char *ifname) |
718e3744 | 744 | { |
d62a17ae | 745 | int ret; |
718e3744 | 746 | |
045c5389 | 747 | ret = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 748 | if (ret >= 0) |
3d7a1be8 | 749 | return NB_ERR_INCONSISTENCY; |
718e3744 | 750 | |
ca046902 | 751 | vector_set(rip->enable_interface, |
03c20031 | 752 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 753 | |
045c5389 | 754 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 755 | |
3d7a1be8 | 756 | return NB_OK; |
718e3744 | 757 | } |
758 | ||
759 | /* Delete interface from rip_enable_if. */ | |
045c5389 | 760 | int rip_enable_if_delete(struct rip *rip, const char *ifname) |
718e3744 | 761 | { |
d62a17ae | 762 | int index; |
763 | char *str; | |
718e3744 | 764 | |
045c5389 | 765 | index = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 766 | if (index < 0) |
3d7a1be8 | 767 | return NB_ERR_INCONSISTENCY; |
718e3744 | 768 | |
ca046902 | 769 | str = vector_slot(rip->enable_interface, index); |
03c20031 | 770 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 771 | vector_unset(rip->enable_interface, index); |
718e3744 | 772 | |
045c5389 | 773 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 774 | |
3d7a1be8 | 775 | return NB_OK; |
718e3744 | 776 | } |
777 | ||
778 | /* Join to multicast group and send request to the interface. */ | |
e6685141 | 779 | static void rip_interface_wakeup(struct event *t) |
718e3744 | 780 | { |
d62a17ae | 781 | struct interface *ifp; |
782 | struct rip_interface *ri; | |
718e3744 | 783 | |
d62a17ae | 784 | /* Get interface. */ |
e16d030c | 785 | ifp = EVENT_ARG(t); |
718e3744 | 786 | |
d62a17ae | 787 | ri = ifp->info; |
718e3744 | 788 | |
d62a17ae | 789 | /* Join to multicast group. */ |
045c5389 | 790 | if (rip_multicast_join(ifp, ri->rip->sock) < 0) { |
450971aa | 791 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
792 | "multicast join failed, interface %s not running", |
793 | ifp->name); | |
cc9f21da | 794 | return; |
d62a17ae | 795 | } |
718e3744 | 796 | |
d62a17ae | 797 | /* Set running flag. */ |
798 | ri->running = 1; | |
799 | ||
800 | /* Send RIP request to the interface. */ | |
801 | rip_request_interface(ifp); | |
d62a17ae | 802 | } |
803 | ||
804 | static void rip_connect_set(struct interface *ifp, int set) | |
805 | { | |
045c5389 RW |
806 | struct rip_interface *ri = ifp->info; |
807 | struct rip *rip = ri->rip; | |
d62a17ae | 808 | struct listnode *node, *nnode; |
809 | struct connected *connected; | |
810 | struct prefix_ipv4 address; | |
3f5682c8 DS |
811 | struct nexthop nh; |
812 | ||
813 | memset(&nh, 0, sizeof(nh)); | |
d62a17ae | 814 | |
815 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
816 | struct prefix *p; | |
817 | p = connected->address; | |
818 | ||
819 | if (p->family != AF_INET) | |
820 | continue; | |
821 | ||
822 | address.family = AF_INET; | |
823 | address.prefix = p->u.prefix4; | |
824 | address.prefixlen = p->prefixlen; | |
825 | apply_mask_ipv4(&address); | |
826 | ||
3f5682c8 DS |
827 | nh.ifindex = connected->ifp->ifindex; |
828 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
d62a17ae | 829 | if (set) { |
f89c0aed | 830 | /* Check once more whether this prefix is within a |
d62a17ae | 831 | * "network IF_OR_PREF" one */ |
045c5389 RW |
832 | if ((rip_enable_if_lookup(rip, connected->ifp->name) |
833 | >= 0) | |
d62a17ae | 834 | || (rip_enable_network_lookup2(connected) >= 0)) |
045c5389 | 835 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
996c9314 LB |
836 | RIP_ROUTE_INTERFACE, |
837 | &address, &nh, 0, 0, 0); | |
d62a17ae | 838 | } else { |
045c5389 | 839 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, |
d62a17ae | 840 | RIP_ROUTE_INTERFACE, &address, |
841 | connected->ifp->ifindex); | |
045c5389 RW |
842 | if (rip_redistribute_check(rip, ZEBRA_ROUTE_CONNECT)) |
843 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, | |
996c9314 LB |
844 | RIP_ROUTE_REDISTRIBUTE, |
845 | &address, &nh, 0, 0, 0); | |
d62a17ae | 846 | } |
847 | } | |
718e3744 | 848 | } |
849 | ||
850 | /* Update interface status. */ | |
d62a17ae | 851 | void rip_enable_apply(struct interface *ifp) |
718e3744 | 852 | { |
d62a17ae | 853 | int ret; |
854 | struct rip_interface *ri = NULL; | |
718e3744 | 855 | |
d62a17ae | 856 | /* Check interface. */ |
857 | if (!if_is_operative(ifp)) | |
858 | return; | |
718e3744 | 859 | |
d62a17ae | 860 | ri = ifp->info; |
861 | ||
862 | /* Check network configuration. */ | |
863 | ret = rip_enable_network_lookup_if(ifp); | |
864 | ||
865 | /* If the interface is matched. */ | |
866 | if (ret > 0) | |
867 | ri->enable_network = 1; | |
868 | else | |
869 | ri->enable_network = 0; | |
870 | ||
871 | /* Check interface name configuration. */ | |
045c5389 | 872 | ret = rip_enable_if_lookup(ri->rip, ifp->name); |
d62a17ae | 873 | if (ret >= 0) |
874 | ri->enable_interface = 1; | |
875 | else | |
876 | ri->enable_interface = 0; | |
718e3744 | 877 | |
d62a17ae | 878 | /* any interface MUST have an IPv4 address */ |
879 | if (!rip_if_ipv4_address_check(ifp)) { | |
880 | ri->enable_network = 0; | |
881 | ri->enable_interface = 0; | |
718e3744 | 882 | } |
718e3744 | 883 | |
d62a17ae | 884 | /* Update running status of the interface. */ |
885 | if (ri->enable_network || ri->enable_interface) { | |
2e37ad7f RW |
886 | if (IS_RIP_DEBUG_EVENT) |
887 | zlog_debug("turn on %s", ifp->name); | |
888 | ||
889 | /* Add interface wake up thread. */ | |
907a2395 DS |
890 | event_add_timer(master, rip_interface_wakeup, ifp, 1, |
891 | &ri->t_wakeup); | |
2e37ad7f RW |
892 | rip_connect_set(ifp, 1); |
893 | } else if (ri->running) { | |
894 | /* Might as well clean up the route table as well | |
895 | * rip_if_down sets to 0 ri->running, and displays "turn | |
896 | *off %s" | |
897 | **/ | |
898 | rip_if_down(ifp); | |
d62a17ae | 899 | |
2e37ad7f | 900 | rip_connect_set(ifp, 0); |
718e3744 | 901 | } |
718e3744 | 902 | } |
903 | ||
904 | /* Apply network configuration to all interface. */ | |
045c5389 | 905 | static void rip_enable_apply_all(struct rip *rip) |
718e3744 | 906 | { |
d62a17ae | 907 | struct interface *ifp; |
718e3744 | 908 | |
d62a17ae | 909 | /* Check each interface. */ |
ae7b826a | 910 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 911 | rip_enable_apply(ifp); |
718e3744 | 912 | } |
913 | ||
045c5389 | 914 | int rip_neighbor_lookup(struct rip *rip, struct sockaddr_in *from) |
718e3744 | 915 | { |
d62a17ae | 916 | struct prefix_ipv4 p; |
917 | struct route_node *node; | |
718e3744 | 918 | |
6006b807 | 919 | memset(&p, 0, sizeof(p)); |
d62a17ae | 920 | p.family = AF_INET; |
921 | p.prefix = from->sin_addr; | |
922 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 923 | |
d62a17ae | 924 | node = route_node_lookup(rip->neighbor, (struct prefix *)&p); |
925 | if (node) { | |
926 | route_unlock_node(node); | |
927 | return 1; | |
928 | } | |
929 | return 0; | |
718e3744 | 930 | } |
931 | ||
932 | /* Add new RIP neighbor to the neighbor tree. */ | |
045c5389 | 933 | int rip_neighbor_add(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 934 | { |
d62a17ae | 935 | struct route_node *node; |
718e3744 | 936 | |
d62a17ae | 937 | node = route_node_get(rip->neighbor, (struct prefix *)p); |
718e3744 | 938 | |
d62a17ae | 939 | if (node->info) |
f0ab22fb | 940 | return NB_ERR_INCONSISTENCY; |
718e3744 | 941 | |
d62a17ae | 942 | node->info = rip->neighbor; |
718e3744 | 943 | |
f0ab22fb | 944 | return NB_OK; |
718e3744 | 945 | } |
946 | ||
947 | /* Delete RIP neighbor from the neighbor tree. */ | |
045c5389 | 948 | int rip_neighbor_delete(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 949 | { |
d62a17ae | 950 | struct route_node *node; |
718e3744 | 951 | |
d62a17ae | 952 | /* Lock for look up. */ |
953 | node = route_node_lookup(rip->neighbor, (struct prefix *)p); | |
954 | if (!node) | |
f0ab22fb | 955 | return NB_ERR_INCONSISTENCY; |
718e3744 | 956 | |
d62a17ae | 957 | node->info = NULL; |
718e3744 | 958 | |
d62a17ae | 959 | /* Unlock lookup lock. */ |
960 | route_unlock_node(node); | |
718e3744 | 961 | |
d62a17ae | 962 | /* Unlock real neighbor information lock. */ |
963 | route_unlock_node(node); | |
964 | ||
f0ab22fb | 965 | return NB_OK; |
718e3744 | 966 | } |
967 | ||
968 | /* Clear all network and neighbor configuration. */ | |
045c5389 | 969 | void rip_clean_network(struct rip *rip) |
d62a17ae | 970 | { |
971 | unsigned int i; | |
972 | char *str; | |
973 | struct route_node *rn; | |
974 | ||
1205fdc4 RW |
975 | /* rip->enable_network. */ |
976 | for (rn = route_top(rip->enable_network); rn; rn = route_next(rn)) | |
d62a17ae | 977 | if (rn->info) { |
978 | rn->info = NULL; | |
979 | route_unlock_node(rn); | |
980 | } | |
981 | ||
ca046902 RW |
982 | /* rip->enable_interface. */ |
983 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
984 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) { | |
03c20031 | 985 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 986 | vector_slot(rip->enable_interface, i) = NULL; |
d62a17ae | 987 | } |
718e3744 | 988 | } |
6b0655a2 | 989 | |
718e3744 | 990 | /* Utility function for looking up passive interface settings. */ |
045c5389 | 991 | static int rip_passive_nondefault_lookup(struct rip *rip, const char *ifname) |
718e3744 | 992 | { |
d62a17ae | 993 | unsigned int i; |
994 | char *str; | |
718e3744 | 995 | |
5a29c0d5 RW |
996 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
997 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) | |
d62a17ae | 998 | if (strcmp(str, ifname) == 0) |
999 | return i; | |
1000 | return -1; | |
718e3744 | 1001 | } |
1002 | ||
045c5389 | 1003 | static void rip_passive_interface_apply(struct interface *ifp) |
718e3744 | 1004 | { |
045c5389 | 1005 | struct rip *rip; |
d62a17ae | 1006 | struct rip_interface *ri; |
718e3744 | 1007 | |
045c5389 RW |
1008 | ri = ifp->info; |
1009 | rip = ri->rip; | |
44f2f852 RW |
1010 | if (rip == NULL) |
1011 | return; | |
1012 | ||
045c5389 | 1013 | ri->passive = ((rip_passive_nondefault_lookup(rip, ifp->name) < 0) |
44f2f852 RW |
1014 | ? rip->passive_default |
1015 | : !rip->passive_default); | |
4aaff3f8 | 1016 | |
d62a17ae | 1017 | if (IS_RIP_DEBUG_ZEBRA) |
1018 | zlog_debug("interface %s: passive = %d", ifp->name, | |
1019 | ri->passive); | |
718e3744 | 1020 | } |
1021 | ||
045c5389 | 1022 | static void rip_passive_interface_apply_all(struct rip *rip) |
718e3744 | 1023 | { |
d62a17ae | 1024 | struct interface *ifp; |
718e3744 | 1025 | |
ae7b826a | 1026 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 1027 | rip_passive_interface_apply(ifp); |
718e3744 | 1028 | } |
1029 | ||
1030 | /* Passive interface. */ | |
045c5389 | 1031 | int rip_passive_nondefault_set(struct rip *rip, const char *ifname) |
718e3744 | 1032 | { |
045c5389 | 1033 | if (rip_passive_nondefault_lookup(rip, ifname) >= 0) |
44f2f852 RW |
1034 | /* |
1035 | * Don't return an error, this can happen after changing | |
1036 | * 'passive-default'. | |
1037 | */ | |
1038 | return NB_OK; | |
718e3744 | 1039 | |
5a29c0d5 | 1040 | vector_set(rip->passive_nondefault, |
03c20031 | 1041 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 1042 | |
045c5389 | 1043 | rip_passive_interface_apply_all(rip); |
718e3744 | 1044 | |
44f2f852 | 1045 | return NB_OK; |
718e3744 | 1046 | } |
1047 | ||
045c5389 | 1048 | int rip_passive_nondefault_unset(struct rip *rip, const char *ifname) |
718e3744 | 1049 | { |
d62a17ae | 1050 | int i; |
1051 | char *str; | |
718e3744 | 1052 | |
045c5389 | 1053 | i = rip_passive_nondefault_lookup(rip, ifname); |
d62a17ae | 1054 | if (i < 0) |
44f2f852 RW |
1055 | /* |
1056 | * Don't return an error, this can happen after changing | |
1057 | * 'passive-default'. | |
1058 | */ | |
1059 | return NB_OK; | |
718e3744 | 1060 | |
5a29c0d5 | 1061 | str = vector_slot(rip->passive_nondefault, i); |
03c20031 | 1062 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1063 | vector_unset(rip->passive_nondefault, i); |
718e3744 | 1064 | |
045c5389 | 1065 | rip_passive_interface_apply_all(rip); |
718e3744 | 1066 | |
44f2f852 | 1067 | return NB_OK; |
718e3744 | 1068 | } |
1069 | ||
1070 | /* Free all configured RIP passive-interface settings. */ | |
045c5389 | 1071 | void rip_passive_nondefault_clean(struct rip *rip) |
718e3744 | 1072 | { |
d62a17ae | 1073 | unsigned int i; |
1074 | char *str; | |
718e3744 | 1075 | |
5a29c0d5 RW |
1076 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
1077 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) { | |
03c20031 | 1078 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1079 | vector_slot(rip->passive_nondefault, i) = NULL; |
d62a17ae | 1080 | } |
045c5389 | 1081 | rip_passive_interface_apply_all(rip); |
718e3744 | 1082 | } |
6b0655a2 | 1083 | |
045c5389 | 1084 | int rip_show_network_config(struct vty *vty, struct rip *rip) |
d62a17ae | 1085 | { |
1086 | unsigned int i; | |
1087 | char *ifname; | |
1088 | struct route_node *node; | |
1089 | ||
1090 | /* Network type RIP enable interface statement. */ | |
1205fdc4 | 1091 | for (node = route_top(rip->enable_network); node; |
d62a17ae | 1092 | node = route_next(node)) |
1093 | if (node->info) | |
53bb7f9b | 1094 | vty_out(vty, " %pFX\n", &node->p); |
d62a17ae | 1095 | |
1096 | /* Interface name RIP enable statement. */ | |
ca046902 RW |
1097 | for (i = 0; i < vector_active(rip->enable_interface); i++) |
1098 | if ((ifname = vector_slot(rip->enable_interface, i)) != NULL) | |
44f2f852 | 1099 | vty_out(vty, " %s\n", ifname); |
d62a17ae | 1100 | |
1101 | /* RIP neighbors listing. */ | |
1102 | for (node = route_top(rip->neighbor); node; node = route_next(node)) | |
1103 | if (node->info) | |
53bb7f9b | 1104 | vty_out(vty, " %pI4\n", &node->p.u.prefix4); |
718e3744 | 1105 | |
d62a17ae | 1106 | return 0; |
1107 | } | |
1108 | ||
ae7b826a RW |
1109 | void rip_interface_sync(struct interface *ifp) |
1110 | { | |
096f7609 | 1111 | struct rip_interface *ri; |
ae7b826a | 1112 | |
096f7609 | 1113 | ri = ifp->info; |
bf384bbc | 1114 | if (ri) { |
096f7609 | 1115 | ri->rip = ifp->vrf->info; |
bf384bbc RW |
1116 | ri->ifp = ifp; |
1117 | } | |
ae7b826a RW |
1118 | } |
1119 | ||
718e3744 | 1120 | /* Called when interface structure allocated. */ |
d62a17ae | 1121 | static int rip_interface_new_hook(struct interface *ifp) |
718e3744 | 1122 | { |
d62a17ae | 1123 | ifp->info = rip_interface_new(); |
ae7b826a RW |
1124 | rip_interface_sync(ifp); |
1125 | ||
d62a17ae | 1126 | return 0; |
718e3744 | 1127 | } |
1128 | ||
1129 | /* Called when interface structure deleted. */ | |
d62a17ae | 1130 | static int rip_interface_delete_hook(struct interface *ifp) |
718e3744 | 1131 | { |
72010aca | 1132 | rip_interface_reset(ifp->info); |
d62a17ae | 1133 | XFREE(MTYPE_RIP_INTERFACE, ifp->info); |
d62a17ae | 1134 | return 0; |
718e3744 | 1135 | } |
1136 | ||
1137 | /* Allocate and initialize interface vector. */ | |
d62a17ae | 1138 | void rip_if_init(void) |
718e3744 | 1139 | { |
d62a17ae | 1140 | /* Default initial size of interface vector. */ |
ce19a04a DL |
1141 | hook_register_prio(if_add, 0, rip_interface_new_hook); |
1142 | hook_register_prio(if_del, 0, rip_interface_delete_hook); | |
d62a17ae | 1143 | |
d62a17ae | 1144 | /* Install interface node. */ |
104fd767 | 1145 | if_cmd_init_default(); |
138c5a74 DS |
1146 | if_zapi_callbacks(rip_ifp_create, rip_ifp_up, |
1147 | rip_ifp_down, rip_ifp_destroy); | |
718e3744 | 1148 | } |