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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" | |
28 | #include "ripd/rip_debug.h" | |
dc63bfd4 | 29 | #include "ripd/rip_interface.h" |
6b0655a2 | 30 | |
bf8d3d6a DL |
31 | DEFINE_MTYPE_STATIC(RIPD, RIP_INTERFACE, "RIP interface"); |
32 | DEFINE_MTYPE(RIPD, RIP_INTERFACE_STRING, "RIP Interface String"); | |
8451921b DL |
33 | DEFINE_HOOK(rip_ifaddr_add, (struct connected * ifc), (ifc)); |
34 | DEFINE_HOOK(rip_ifaddr_del, (struct connected * ifc), (ifc)); | |
3012671f | 35 | |
dc63bfd4 | 36 | /* static prototypes */ |
d62a17ae | 37 | static void rip_enable_apply(struct interface *); |
38 | static void rip_passive_interface_apply(struct interface *); | |
dc63bfd4 | 39 | static int rip_if_down(struct interface *ifp); |
045c5389 | 40 | static int rip_enable_if_lookup(struct rip *rip, const char *ifname); |
d62a17ae | 41 | static int rip_enable_network_lookup2(struct connected *connected); |
045c5389 | 42 | static void rip_enable_apply_all(struct rip *rip); |
6b0655a2 | 43 | |
d62a17ae | 44 | const struct message ri_version_msg[] = {{RI_RIP_VERSION_1, "1"}, |
45 | {RI_RIP_VERSION_2, "2"}, | |
46 | {RI_RIP_VERSION_1_AND_2, "1 2"}, | |
47 | {RI_RIP_VERSION_NONE, "none"}, | |
48 | {0}}; | |
718e3744 | 49 | |
718e3744 | 50 | /* Join to the RIP version 2 multicast group. */ |
d62a17ae | 51 | static int ipv4_multicast_join(int sock, struct in_addr group, |
52 | struct in_addr ifa, ifindex_t ifindex) | |
718e3744 | 53 | { |
d62a17ae | 54 | int ret; |
718e3744 | 55 | |
d62a17ae | 56 | ret = setsockopt_ipv4_multicast(sock, IP_ADD_MEMBERSHIP, ifa, |
57 | group.s_addr, ifindex); | |
718e3744 | 58 | |
d62a17ae | 59 | if (ret < 0) |
60 | zlog_info("can't setsockopt IP_ADD_MEMBERSHIP %s", | |
61 | safe_strerror(errno)); | |
718e3744 | 62 | |
d62a17ae | 63 | return ret; |
718e3744 | 64 | } |
65 | ||
66 | /* Leave from the RIP version 2 multicast group. */ | |
d62a17ae | 67 | static int ipv4_multicast_leave(int sock, struct in_addr group, |
68 | struct in_addr ifa, ifindex_t ifindex) | |
718e3744 | 69 | { |
d62a17ae | 70 | int ret; |
718e3744 | 71 | |
d62a17ae | 72 | ret = setsockopt_ipv4_multicast(sock, IP_DROP_MEMBERSHIP, ifa, |
73 | group.s_addr, ifindex); | |
718e3744 | 74 | |
d62a17ae | 75 | if (ret < 0) |
76 | zlog_info("can't setsockopt IP_DROP_MEMBERSHIP"); | |
718e3744 | 77 | |
d62a17ae | 78 | return ret; |
718e3744 | 79 | } |
6b0655a2 | 80 | |
d62a17ae | 81 | static void rip_interface_reset(struct rip_interface *); |
1dec2166 | 82 | |
718e3744 | 83 | /* Allocate new RIP's interface configuration. */ |
d62a17ae | 84 | static struct rip_interface *rip_interface_new(void) |
718e3744 | 85 | { |
d62a17ae | 86 | struct rip_interface *ri; |
718e3744 | 87 | |
d62a17ae | 88 | ri = XCALLOC(MTYPE_RIP_INTERFACE, sizeof(struct rip_interface)); |
718e3744 | 89 | |
d62a17ae | 90 | rip_interface_reset(ri); |
718e3744 | 91 | |
d62a17ae | 92 | return ri; |
718e3744 | 93 | } |
94 | ||
d62a17ae | 95 | void rip_interface_multicast_set(int sock, struct connected *connected) |
718e3744 | 96 | { |
d62a17ae | 97 | struct in_addr addr; |
4a3867d0 | 98 | |
d62a17ae | 99 | assert(connected != NULL); |
4a3867d0 | 100 | |
d62a17ae | 101 | addr = CONNECTED_ID(connected)->u.prefix4; |
102 | ||
103 | if (setsockopt_ipv4_multicast_if(sock, addr, connected->ifp->ifindex) | |
104 | < 0) { | |
105 | zlog_warn( | |
3efd0893 | 106 | "Can't setsockopt IP_MULTICAST_IF on fd %d to ifindex %d for interface %s", |
d62a17ae | 107 | sock, connected->ifp->ifindex, connected->ifp->name); |
108 | } | |
4a3867d0 | 109 | |
d62a17ae | 110 | return; |
3fb9cd6e | 111 | } |
718e3744 | 112 | |
113 | /* Send RIP request packet to specified interface. */ | |
d7c0a89a | 114 | static void rip_request_interface_send(struct interface *ifp, uint8_t version) |
718e3744 | 115 | { |
d62a17ae | 116 | struct sockaddr_in to; |
718e3744 | 117 | |
d62a17ae | 118 | /* RIPv2 support multicast. */ |
119 | if (version == RIPv2 && if_is_multicast(ifp)) { | |
718e3744 | 120 | |
d62a17ae | 121 | if (IS_RIP_DEBUG_EVENT) |
122 | zlog_debug("multicast request on %s", ifp->name); | |
718e3744 | 123 | |
d62a17ae | 124 | rip_request_send(NULL, ifp, version, NULL); |
125 | return; | |
126 | } | |
718e3744 | 127 | |
d62a17ae | 128 | /* RIPv1 and non multicast interface. */ |
129 | if (if_is_pointopoint(ifp) || if_is_broadcast(ifp)) { | |
130 | struct listnode *cnode, *cnnode; | |
131 | struct connected *connected; | |
132 | ||
133 | if (IS_RIP_DEBUG_EVENT) | |
134 | zlog_debug("broadcast request to %s", ifp->name); | |
135 | ||
136 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, | |
137 | connected)) { | |
2e37ad7f RW |
138 | if (connected->address->family != AF_INET) |
139 | continue; | |
140 | ||
141 | memset(&to, 0, sizeof(struct sockaddr_in)); | |
142 | to.sin_port = htons(RIP_PORT_DEFAULT); | |
143 | if (connected->destination) | |
144 | /* use specified broadcast or peer | |
145 | * destination addr */ | |
146 | to.sin_addr = connected->destination->u.prefix4; | |
147 | else if (connected->address->prefixlen | |
936fbaef | 148 | < IPV4_MAX_BITLEN) |
2e37ad7f RW |
149 | /* calculate the appropriate broadcast |
150 | * address */ | |
151 | to.sin_addr.s_addr = ipv4_broadcast_addr( | |
152 | connected->address->u.prefix4.s_addr, | |
153 | connected->address->prefixlen); | |
154 | else | |
155 | /* do not know where to send the packet | |
156 | */ | |
157 | continue; | |
158 | ||
159 | if (IS_RIP_DEBUG_EVENT) | |
53bb7f9b MS |
160 | zlog_debug("SEND request to %pI4", |
161 | &to.sin_addr); | |
2e37ad7f RW |
162 | |
163 | rip_request_send(&to, ifp, version, connected); | |
d62a17ae | 164 | } |
718e3744 | 165 | } |
718e3744 | 166 | } |
167 | ||
168 | /* This will be executed when interface goes up. */ | |
d62a17ae | 169 | static void rip_request_interface(struct interface *ifp) |
718e3744 | 170 | { |
d62a17ae | 171 | struct rip_interface *ri; |
2e37ad7f | 172 | int vsend; |
718e3744 | 173 | |
d62a17ae | 174 | /* In default ripd doesn't send RIP_REQUEST to the loopback interface. |
175 | */ | |
176 | if (if_is_loopback(ifp)) | |
177 | return; | |
718e3744 | 178 | |
d62a17ae | 179 | /* If interface is down, don't send RIP packet. */ |
180 | if (!if_is_operative(ifp)) | |
181 | return; | |
718e3744 | 182 | |
d62a17ae | 183 | /* Fetch RIP interface information. */ |
184 | ri = ifp->info; | |
718e3744 | 185 | |
d62a17ae | 186 | /* If there is no version configuration in the interface, |
187 | use rip's version setting. */ | |
045c5389 | 188 | vsend = ((ri->ri_send == RI_RIP_UNSPEC) ? ri->rip->version_send |
2e37ad7f RW |
189 | : ri->ri_send); |
190 | if (vsend & RIPv1) | |
191 | rip_request_interface_send(ifp, RIPv1); | |
192 | if (vsend & RIPv2) | |
193 | rip_request_interface_send(ifp, RIPv2); | |
718e3744 | 194 | } |
195 | ||
718e3744 | 196 | /* Multicast packet receive socket. */ |
d62a17ae | 197 | static int rip_multicast_join(struct interface *ifp, int sock) |
718e3744 | 198 | { |
d62a17ae | 199 | struct listnode *cnode; |
200 | struct connected *ifc; | |
718e3744 | 201 | |
d62a17ae | 202 | if (if_is_operative(ifp) && if_is_multicast(ifp)) { |
203 | if (IS_RIP_DEBUG_EVENT) | |
204 | zlog_debug("multicast join at %s", ifp->name); | |
718e3744 | 205 | |
d62a17ae | 206 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, ifc)) { |
207 | struct prefix_ipv4 *p; | |
208 | struct in_addr group; | |
209 | ||
210 | p = (struct prefix_ipv4 *)ifc->address; | |
211 | ||
212 | if (p->family != AF_INET) | |
213 | continue; | |
214 | ||
215 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
216 | if (ipv4_multicast_join(sock, group, p->prefix, | |
217 | ifp->ifindex) | |
218 | < 0) | |
219 | return -1; | |
220 | else | |
221 | return 0; | |
222 | } | |
718e3744 | 223 | } |
d62a17ae | 224 | return 0; |
718e3744 | 225 | } |
226 | ||
227 | /* Leave from multicast group. */ | |
d62a17ae | 228 | static void rip_multicast_leave(struct interface *ifp, int sock) |
718e3744 | 229 | { |
d62a17ae | 230 | struct listnode *cnode; |
231 | struct connected *connected; | |
718e3744 | 232 | |
d62a17ae | 233 | if (if_is_up(ifp) && if_is_multicast(ifp)) { |
234 | if (IS_RIP_DEBUG_EVENT) | |
235 | zlog_debug("multicast leave from %s", ifp->name); | |
718e3744 | 236 | |
d62a17ae | 237 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
238 | struct prefix_ipv4 *p; | |
239 | struct in_addr group; | |
240 | ||
241 | p = (struct prefix_ipv4 *)connected->address; | |
242 | ||
243 | if (p->family != AF_INET) | |
244 | continue; | |
245 | ||
246 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
247 | if (ipv4_multicast_leave(sock, group, p->prefix, | |
248 | ifp->ifindex) | |
249 | == 0) | |
250 | return; | |
251 | } | |
252 | } | |
718e3744 | 253 | } |
254 | ||
255 | /* Is there and address on interface that I could use ? */ | |
d62a17ae | 256 | static int rip_if_ipv4_address_check(struct interface *ifp) |
718e3744 | 257 | { |
d62a17ae | 258 | struct listnode *nn; |
259 | struct connected *connected; | |
260 | int count = 0; | |
718e3744 | 261 | |
d62a17ae | 262 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, nn, connected)) { |
263 | struct prefix *p; | |
718e3744 | 264 | |
d62a17ae | 265 | p = connected->address; |
266 | ||
267 | if (p->family == AF_INET) | |
268 | count++; | |
269 | } | |
718e3744 | 270 | |
d62a17ae | 271 | return count; |
718e3744 | 272 | } |
d62a17ae | 273 | |
31a476c7 | 274 | |
275 | /* Does this address belongs to me ? */ | |
045c5389 | 276 | int if_check_address(struct rip *rip, struct in_addr addr) |
d62a17ae | 277 | { |
d62a17ae | 278 | struct interface *ifp; |
31a476c7 | 279 | |
ae7b826a | 280 | FOR_ALL_INTERFACES (rip->vrf, ifp) { |
d62a17ae | 281 | struct listnode *cnode; |
282 | struct connected *connected; | |
31a476c7 | 283 | |
d62a17ae | 284 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
285 | struct prefix_ipv4 *p; | |
31a476c7 | 286 | |
d62a17ae | 287 | p = (struct prefix_ipv4 *)connected->address; |
288 | ||
289 | if (p->family != AF_INET) | |
290 | continue; | |
291 | ||
292 | if (IPV4_ADDR_CMP(&p->prefix, &addr) == 0) | |
293 | return 1; | |
294 | } | |
31a476c7 | 295 | } |
d62a17ae | 296 | return 0; |
31a476c7 | 297 | } |
298 | ||
61879cab | 299 | /* Interface link down message processing. */ |
b0b69e59 | 300 | static int rip_ifp_down(struct interface *ifp) |
718e3744 | 301 | { |
ae7b826a | 302 | rip_interface_sync(ifp); |
d62a17ae | 303 | rip_if_down(ifp); |
718e3744 | 304 | |
096f7609 | 305 | if (IS_RIP_DEBUG_ZEBRA) |
d62a17ae | 306 | zlog_debug( |
5434aac4 | 307 | "interface %s vrf %s(%u) index %d flags %llx metric %d mtu %d is down", |
096f7609 IR |
308 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id, |
309 | ifp->ifindex, (unsigned long long)ifp->flags, | |
310 | ifp->metric, ifp->mtu); | |
d62a17ae | 311 | |
312 | return 0; | |
718e3744 | 313 | } |
314 | ||
61879cab | 315 | /* Interface link up message processing */ |
ddbf3e60 | 316 | static int rip_ifp_up(struct interface *ifp) |
718e3744 | 317 | { |
096f7609 | 318 | if (IS_RIP_DEBUG_ZEBRA) |
d62a17ae | 319 | zlog_debug( |
5434aac4 | 320 | "interface %s vrf %s(%u) index %d flags %#llx metric %d mtu %d is up", |
096f7609 IR |
321 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id, |
322 | ifp->ifindex, (unsigned long long)ifp->flags, | |
323 | ifp->metric, ifp->mtu); | |
ae7b826a RW |
324 | |
325 | rip_interface_sync(ifp); | |
718e3744 | 326 | |
d62a17ae | 327 | /* Check if this interface is RIP enabled or not.*/ |
328 | rip_enable_apply(ifp); | |
718e3744 | 329 | |
d62a17ae | 330 | /* Check for a passive interface */ |
331 | rip_passive_interface_apply(ifp); | |
718e3744 | 332 | |
d62a17ae | 333 | /* Apply distribute list to the all interface. */ |
334 | rip_distribute_update_interface(ifp); | |
718e3744 | 335 | |
d62a17ae | 336 | return 0; |
718e3744 | 337 | } |
338 | ||
61879cab | 339 | /* Interface addition message from zebra. */ |
ef7bd2a3 | 340 | static int rip_ifp_create(struct interface *ifp) |
718e3744 | 341 | { |
ae7b826a | 342 | rip_interface_sync(ifp); |
718e3744 | 343 | |
096f7609 | 344 | if (IS_RIP_DEBUG_ZEBRA) |
d62a17ae | 345 | zlog_debug( |
5434aac4 | 346 | "interface add %s vrf %s(%u) index %d flags %#llx metric %d mtu %d", |
096f7609 IR |
347 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id, |
348 | ifp->ifindex, (unsigned long long)ifp->flags, | |
349 | ifp->metric, ifp->mtu); | |
718e3744 | 350 | |
d62a17ae | 351 | /* Check if this interface is RIP enabled or not.*/ |
352 | rip_enable_apply(ifp); | |
718e3744 | 353 | |
d62a17ae | 354 | /* Check for a passive interface */ |
355 | rip_passive_interface_apply(ifp); | |
718e3744 | 356 | |
d62a17ae | 357 | /* Apply distribute list to the all interface. */ |
358 | rip_distribute_update_interface(ifp); | |
718e3744 | 359 | |
d62a17ae | 360 | /* rip_request_neighbor_all (); */ |
16705130 | 361 | |
d62a17ae | 362 | /* Check interface routemap. */ |
363 | rip_if_rmap_update_interface(ifp); | |
364 | ||
365 | return 0; | |
718e3744 | 366 | } |
367 | ||
3c3c3252 | 368 | static int rip_ifp_destroy(struct interface *ifp) |
718e3744 | 369 | { |
ae7b826a | 370 | rip_interface_sync(ifp); |
d62a17ae | 371 | if (if_is_up(ifp)) { |
372 | rip_if_down(ifp); | |
373 | } | |
718e3744 | 374 | |
13c5f95e DS |
375 | if (IS_RIP_DEBUG_ZEBRA) |
376 | zlog_debug( | |
377 | "interface delete %s vrf %s(%u) index %d flags %#llx metric %d mtu %d", | |
096f7609 IR |
378 | ifp->name, ifp->vrf->name, ifp->vrf->vrf_id, |
379 | ifp->ifindex, (unsigned long long)ifp->flags, | |
380 | ifp->metric, ifp->mtu); | |
718e3744 | 381 | |
d62a17ae | 382 | return 0; |
718e3744 | 383 | } |
384 | ||
ae7b826a | 385 | /* VRF update for an interface. */ |
121f9dee | 386 | int rip_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
ae7b826a RW |
387 | { |
388 | struct interface *ifp; | |
389 | vrf_id_t new_vrf_id; | |
390 | ||
391 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, | |
392 | &new_vrf_id); | |
393 | if (!ifp) | |
394 | return 0; | |
395 | ||
5434aac4 | 396 | if (IS_RIP_DEBUG_ZEBRA) { |
5434aac4 DS |
397 | struct vrf *nvrf = vrf_lookup_by_id(new_vrf_id); |
398 | ||
399 | zlog_debug("interface %s VRF change vrf %s(%u) new vrf %s(%u)", | |
096f7609 IR |
400 | ifp->name, ifp->vrf->name, vrf_id, VRF_LOGNAME(nvrf), |
401 | new_vrf_id); | |
5434aac4 | 402 | } |
ae7b826a | 403 | |
a36898e7 | 404 | if_update_to_new_vrf(ifp, new_vrf_id); |
ae7b826a RW |
405 | rip_interface_sync(ifp); |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
d62a17ae | 410 | static void rip_interface_clean(struct rip_interface *ri) |
4305dfd1 | 411 | { |
d62a17ae | 412 | ri->enable_network = 0; |
413 | ri->enable_interface = 0; | |
414 | ri->running = 0; | |
718e3744 | 415 | |
e16d030c | 416 | EVENT_OFF(ri->t_wakeup); |
4305dfd1 | 417 | } |
718e3744 | 418 | |
045c5389 | 419 | void rip_interfaces_clean(struct rip *rip) |
718e3744 | 420 | { |
d62a17ae | 421 | struct interface *ifp; |
718e3744 | 422 | |
ae7b826a | 423 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 424 | rip_interface_clean(ifp->info); |
1dec2166 | 425 | } |
718e3744 | 426 | |
d62a17ae | 427 | static void rip_interface_reset(struct rip_interface *ri) |
4305dfd1 | 428 | { |
94b117b2 RW |
429 | ri->auth_type = yang_get_default_enum("%s/authentication-scheme/mode", |
430 | RIP_IFACE); | |
431 | ri->md5_auth_len = yang_get_default_enum( | |
432 | "%s/authentication-scheme/md5-auth-length", RIP_IFACE); | |
718e3744 | 433 | |
d62a17ae | 434 | /* Set default split-horizon behavior. If the interface is Frame |
435 | Relay or SMDS is enabled, the default value for split-horizon is | |
436 | off. But currently Zebra does detect Frame Relay or SMDS | |
437 | interface. So all interface is set to split horizon. */ | |
94b117b2 RW |
438 | ri->split_horizon = |
439 | yang_get_default_enum("%s/split-horizon", RIP_IFACE); | |
718e3744 | 440 | |
94b117b2 RW |
441 | ri->ri_send = yang_get_default_enum("%s/version-send", RIP_IFACE); |
442 | ri->ri_receive = yang_get_default_enum("%s/version-receive", RIP_IFACE); | |
443 | ri->v2_broadcast = yang_get_default_bool("%s/v2-broadcast", RIP_IFACE); | |
f90310cf | 444 | |
0a22ddfb | 445 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->auth_str); |
03c20031 | 446 | |
0a22ddfb | 447 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->key_chain); |
03c20031 | 448 | |
d62a17ae | 449 | ri->list[RIP_FILTER_IN] = NULL; |
450 | ri->list[RIP_FILTER_OUT] = NULL; | |
718e3744 | 451 | |
d62a17ae | 452 | ri->prefix[RIP_FILTER_IN] = NULL; |
453 | ri->prefix[RIP_FILTER_OUT] = NULL; | |
718e3744 | 454 | |
d62a17ae | 455 | ri->recv_badpackets = 0; |
456 | ri->recv_badroutes = 0; | |
457 | ri->sent_updates = 0; | |
4305dfd1 | 458 | |
d62a17ae | 459 | ri->passive = 0; |
c262df82 | 460 | XFREE(MTYPE_TMP, ri->bfd.profile); |
718e3744 | 461 | |
d62a17ae | 462 | rip_interface_clean(ri); |
4305dfd1 | 463 | } |
718e3744 | 464 | |
d62a17ae | 465 | int rip_if_down(struct interface *ifp) |
718e3744 | 466 | { |
045c5389 | 467 | struct rip *rip; |
d62a17ae | 468 | struct route_node *rp; |
469 | struct rip_info *rinfo; | |
470 | struct rip_interface *ri = NULL; | |
471 | struct list *list = NULL; | |
472 | struct listnode *listnode = NULL, *nextnode = NULL; | |
045c5389 RW |
473 | |
474 | ri = ifp->info; | |
8f0c2688 | 475 | |
e16d030c | 476 | EVENT_OFF(ri->t_wakeup); |
8f0c2688 | 477 | |
045c5389 | 478 | rip = ri->rip; |
d62a17ae | 479 | if (rip) { |
480 | for (rp = route_top(rip->table); rp; rp = route_next(rp)) | |
481 | if ((list = rp->info) != NULL) | |
482 | for (ALL_LIST_ELEMENTS(list, listnode, nextnode, | |
483 | rinfo)) | |
dd127197 | 484 | if (rinfo->nh.ifindex == ifp->ifindex) |
045c5389 | 485 | rip_ecmp_delete(rip, rinfo); |
d62a17ae | 486 | |
487 | if (ri->running) { | |
488 | if (IS_RIP_DEBUG_EVENT) | |
489 | zlog_debug("turn off %s", ifp->name); | |
490 | ||
491 | /* Leave from multicast group. */ | |
492 | rip_multicast_leave(ifp, rip->sock); | |
493 | ||
494 | ri->running = 0; | |
495 | } | |
496 | } | |
497 | ||
498 | return 0; | |
718e3744 | 499 | } |
500 | ||
d62a17ae | 501 | static void rip_apply_address_add(struct connected *ifc) |
dc63bfd4 | 502 | { |
045c5389 RW |
503 | struct rip_interface *ri = ifc->ifp->info; |
504 | struct rip *rip = ri->rip; | |
d62a17ae | 505 | struct prefix_ipv4 address; |
3f5682c8 | 506 | struct nexthop nh; |
d62a17ae | 507 | struct prefix *p; |
16705130 | 508 | |
d62a17ae | 509 | if (!rip) |
510 | return; | |
16705130 | 511 | |
d62a17ae | 512 | if (!if_is_up(ifc->ifp)) |
513 | return; | |
16705130 | 514 | |
d62a17ae | 515 | p = ifc->address; |
16705130 | 516 | |
d62a17ae | 517 | memset(&address, 0, sizeof(address)); |
3f5682c8 DS |
518 | memset(&nh, 0, sizeof(nh)); |
519 | ||
d62a17ae | 520 | address.family = p->family; |
521 | address.prefix = p->u.prefix4; | |
522 | address.prefixlen = p->prefixlen; | |
523 | apply_mask_ipv4(&address); | |
16705130 | 524 | |
3f5682c8 DS |
525 | nh.ifindex = ifc->ifp->ifindex; |
526 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
527 | ||
d62a17ae | 528 | /* Check if this interface is RIP enabled or not |
529 | or Check if this address's prefix is RIP enabled */ | |
045c5389 | 530 | if ((rip_enable_if_lookup(rip, ifc->ifp->name) >= 0) |
d62a17ae | 531 | || (rip_enable_network_lookup2(ifc) >= 0)) |
045c5389 RW |
532 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
533 | RIP_ROUTE_INTERFACE, &address, &nh, 0, 0, | |
534 | 0); | |
16705130 | 535 | } |
536 | ||
121f9dee | 537 | int rip_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 538 | { |
d62a17ae | 539 | struct connected *ifc; |
540 | struct prefix *p; | |
718e3744 | 541 | |
d62a17ae | 542 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, |
543 | zclient->ibuf, vrf_id); | |
718e3744 | 544 | |
d62a17ae | 545 | if (ifc == NULL) |
546 | return 0; | |
718e3744 | 547 | |
d62a17ae | 548 | p = ifc->address; |
718e3744 | 549 | |
d62a17ae | 550 | if (p->family == AF_INET) { |
551 | if (IS_RIP_DEBUG_ZEBRA) | |
f42238f8 | 552 | zlog_debug("connected address %pFX is added", p); |
16705130 | 553 | |
d62a17ae | 554 | rip_enable_apply(ifc->ifp); |
555 | /* Check if this prefix needs to be redistributed */ | |
556 | rip_apply_address_add(ifc); | |
718e3744 | 557 | |
d62a17ae | 558 | hook_call(rip_ifaddr_add, ifc); |
559 | } | |
718e3744 | 560 | |
d62a17ae | 561 | return 0; |
718e3744 | 562 | } |
563 | ||
d62a17ae | 564 | static void rip_apply_address_del(struct connected *ifc) |
565 | { | |
045c5389 RW |
566 | struct rip_interface *ri = ifc->ifp->info; |
567 | struct rip *rip = ri->rip; | |
d62a17ae | 568 | struct prefix_ipv4 address; |
569 | struct prefix *p; | |
16705130 | 570 | |
d62a17ae | 571 | if (!rip) |
572 | return; | |
16705130 | 573 | |
d62a17ae | 574 | if (!if_is_up(ifc->ifp)) |
575 | return; | |
16705130 | 576 | |
d62a17ae | 577 | p = ifc->address; |
16705130 | 578 | |
d62a17ae | 579 | memset(&address, 0, sizeof(address)); |
580 | address.family = p->family; | |
581 | address.prefix = p->u.prefix4; | |
582 | address.prefixlen = p->prefixlen; | |
583 | apply_mask_ipv4(&address); | |
16705130 | 584 | |
045c5389 | 585 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, |
d62a17ae | 586 | &address, ifc->ifp->ifindex); |
16705130 | 587 | } |
588 | ||
121f9dee | 589 | int rip_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 590 | { |
d62a17ae | 591 | struct connected *ifc; |
592 | struct prefix *p; | |
718e3744 | 593 | |
d62a17ae | 594 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, |
595 | zclient->ibuf, vrf_id); | |
718e3744 | 596 | |
d62a17ae | 597 | if (ifc) { |
598 | p = ifc->address; | |
599 | if (p->family == AF_INET) { | |
600 | if (IS_RIP_DEBUG_ZEBRA) | |
f42238f8 DS |
601 | zlog_debug("connected address %pFX is deleted", |
602 | p); | |
16705130 | 603 | |
d62a17ae | 604 | hook_call(rip_ifaddr_del, ifc); |
718e3744 | 605 | |
f89c0aed | 606 | /* Chech whether this prefix needs to be removed */ |
d62a17ae | 607 | rip_apply_address_del(ifc); |
608 | } | |
718e3744 | 609 | |
721c0857 | 610 | connected_free(&ifc); |
d62a17ae | 611 | } |
718e3744 | 612 | |
d62a17ae | 613 | return 0; |
718e3744 | 614 | } |
6b0655a2 | 615 | |
718e3744 | 616 | /* Check interface is enabled by network statement. */ |
f89c0aed | 617 | /* Check whether the interface has at least a connected prefix that |
16705130 | 618 | * is within the ripng_enable_network table. */ |
d62a17ae | 619 | static int rip_enable_network_lookup_if(struct interface *ifp) |
620 | { | |
045c5389 RW |
621 | struct rip_interface *ri = ifp->info; |
622 | struct rip *rip = ri->rip; | |
d62a17ae | 623 | struct listnode *node, *nnode; |
624 | struct connected *connected; | |
625 | struct prefix_ipv4 address; | |
626 | ||
1205fdc4 RW |
627 | if (!rip) |
628 | return -1; | |
629 | ||
d62a17ae | 630 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { |
631 | struct prefix *p; | |
dc7204b7 | 632 | struct route_node *n; |
d62a17ae | 633 | |
634 | p = connected->address; | |
635 | ||
636 | if (p->family == AF_INET) { | |
637 | address.family = AF_INET; | |
638 | address.prefix = p->u.prefix4; | |
639 | address.prefixlen = IPV4_MAX_BITLEN; | |
640 | ||
1205fdc4 | 641 | n = route_node_match(rip->enable_network, |
dc7204b7 A |
642 | (struct prefix *)&address); |
643 | if (n) { | |
644 | route_unlock_node(n); | |
d62a17ae | 645 | return 1; |
646 | } | |
647 | } | |
648 | } | |
649 | return -1; | |
718e3744 | 650 | } |
651 | ||
f89c0aed | 652 | /* Check whether connected is within the ripng_enable_network table. */ |
045c5389 | 653 | static int rip_enable_network_lookup2(struct connected *connected) |
16705130 | 654 | { |
045c5389 RW |
655 | struct rip_interface *ri = connected->ifp->info; |
656 | struct rip *rip = ri->rip; | |
d62a17ae | 657 | struct prefix_ipv4 address; |
658 | struct prefix *p; | |
16705130 | 659 | |
d62a17ae | 660 | p = connected->address; |
16705130 | 661 | |
d62a17ae | 662 | if (p->family == AF_INET) { |
663 | struct route_node *node; | |
16705130 | 664 | |
d62a17ae | 665 | address.family = p->family; |
666 | address.prefix = p->u.prefix4; | |
667 | address.prefixlen = IPV4_MAX_BITLEN; | |
16705130 | 668 | |
d62a17ae | 669 | /* LPM on p->family, p->u.prefix4/IPV4_MAX_BITLEN within |
1205fdc4 RW |
670 | * rip->enable_network */ |
671 | node = route_node_match(rip->enable_network, | |
d62a17ae | 672 | (struct prefix *)&address); |
16705130 | 673 | |
d62a17ae | 674 | if (node) { |
675 | route_unlock_node(node); | |
676 | return 1; | |
677 | } | |
678 | } | |
16705130 | 679 | |
d62a17ae | 680 | return -1; |
16705130 | 681 | } |
718e3744 | 682 | /* Add RIP enable network. */ |
045c5389 | 683 | int rip_enable_network_add(struct rip *rip, struct prefix *p) |
718e3744 | 684 | { |
d62a17ae | 685 | struct route_node *node; |
718e3744 | 686 | |
1205fdc4 | 687 | node = route_node_get(rip->enable_network, p); |
718e3744 | 688 | |
d62a17ae | 689 | if (node->info) { |
690 | route_unlock_node(node); | |
3d7a1be8 | 691 | return NB_ERR_INCONSISTENCY; |
d62a17ae | 692 | } else |
693 | node->info = (void *)1; | |
718e3744 | 694 | |
d62a17ae | 695 | /* XXX: One should find a better solution than a generic one */ |
045c5389 | 696 | rip_enable_apply_all(rip); |
16705130 | 697 | |
3d7a1be8 | 698 | return NB_OK; |
718e3744 | 699 | } |
700 | ||
701 | /* Delete RIP enable network. */ | |
045c5389 | 702 | int rip_enable_network_delete(struct rip *rip, struct prefix *p) |
718e3744 | 703 | { |
d62a17ae | 704 | struct route_node *node; |
718e3744 | 705 | |
1205fdc4 | 706 | node = route_node_lookup(rip->enable_network, p); |
d62a17ae | 707 | if (node) { |
708 | node->info = NULL; | |
718e3744 | 709 | |
d62a17ae | 710 | /* Unlock info lock. */ |
711 | route_unlock_node(node); | |
718e3744 | 712 | |
d62a17ae | 713 | /* Unlock lookup lock. */ |
714 | route_unlock_node(node); | |
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; |
d62a17ae | 720 | } |
3d7a1be8 RW |
721 | |
722 | return NB_ERR_INCONSISTENCY; | |
718e3744 | 723 | } |
724 | ||
725 | /* Check interface is enabled by ifname statement. */ | |
045c5389 | 726 | static int rip_enable_if_lookup(struct rip *rip, const char *ifname) |
718e3744 | 727 | { |
d62a17ae | 728 | unsigned int i; |
729 | char *str; | |
718e3744 | 730 | |
ca046902 RW |
731 | if (!rip) |
732 | return -1; | |
733 | ||
734 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
735 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) | |
d62a17ae | 736 | if (strcmp(str, ifname) == 0) |
737 | return i; | |
738 | return -1; | |
718e3744 | 739 | } |
740 | ||
741 | /* Add interface to rip_enable_if. */ | |
045c5389 | 742 | int rip_enable_if_add(struct rip *rip, const char *ifname) |
718e3744 | 743 | { |
d62a17ae | 744 | int ret; |
718e3744 | 745 | |
045c5389 | 746 | ret = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 747 | if (ret >= 0) |
3d7a1be8 | 748 | return NB_ERR_INCONSISTENCY; |
718e3744 | 749 | |
ca046902 | 750 | vector_set(rip->enable_interface, |
03c20031 | 751 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 752 | |
045c5389 | 753 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 754 | |
3d7a1be8 | 755 | return NB_OK; |
718e3744 | 756 | } |
757 | ||
758 | /* Delete interface from rip_enable_if. */ | |
045c5389 | 759 | int rip_enable_if_delete(struct rip *rip, const char *ifname) |
718e3744 | 760 | { |
d62a17ae | 761 | int index; |
762 | char *str; | |
718e3744 | 763 | |
045c5389 | 764 | index = rip_enable_if_lookup(rip, ifname); |
d62a17ae | 765 | if (index < 0) |
3d7a1be8 | 766 | return NB_ERR_INCONSISTENCY; |
718e3744 | 767 | |
ca046902 | 768 | str = vector_slot(rip->enable_interface, index); |
03c20031 | 769 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 770 | vector_unset(rip->enable_interface, index); |
718e3744 | 771 | |
045c5389 | 772 | rip_enable_apply_all(rip); /* TODOVJ */ |
16705130 | 773 | |
3d7a1be8 | 774 | return NB_OK; |
718e3744 | 775 | } |
776 | ||
777 | /* Join to multicast group and send request to the interface. */ | |
e6685141 | 778 | static void rip_interface_wakeup(struct event *t) |
718e3744 | 779 | { |
d62a17ae | 780 | struct interface *ifp; |
781 | struct rip_interface *ri; | |
718e3744 | 782 | |
d62a17ae | 783 | /* Get interface. */ |
e16d030c | 784 | ifp = EVENT_ARG(t); |
718e3744 | 785 | |
d62a17ae | 786 | ri = ifp->info; |
718e3744 | 787 | |
d62a17ae | 788 | /* Join to multicast group. */ |
045c5389 | 789 | if (rip_multicast_join(ifp, ri->rip->sock) < 0) { |
450971aa | 790 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
791 | "multicast join failed, interface %s not running", |
792 | ifp->name); | |
cc9f21da | 793 | return; |
d62a17ae | 794 | } |
718e3744 | 795 | |
d62a17ae | 796 | /* Set running flag. */ |
797 | ri->running = 1; | |
798 | ||
799 | /* Send RIP request to the interface. */ | |
800 | rip_request_interface(ifp); | |
d62a17ae | 801 | } |
802 | ||
803 | static void rip_connect_set(struct interface *ifp, int set) | |
804 | { | |
045c5389 RW |
805 | struct rip_interface *ri = ifp->info; |
806 | struct rip *rip = ri->rip; | |
d62a17ae | 807 | struct listnode *node, *nnode; |
808 | struct connected *connected; | |
809 | struct prefix_ipv4 address; | |
3f5682c8 DS |
810 | struct nexthop nh; |
811 | ||
812 | memset(&nh, 0, sizeof(nh)); | |
d62a17ae | 813 | |
814 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
815 | struct prefix *p; | |
816 | p = connected->address; | |
817 | ||
818 | if (p->family != AF_INET) | |
819 | continue; | |
820 | ||
821 | address.family = AF_INET; | |
822 | address.prefix = p->u.prefix4; | |
823 | address.prefixlen = p->prefixlen; | |
824 | apply_mask_ipv4(&address); | |
825 | ||
3f5682c8 DS |
826 | nh.ifindex = connected->ifp->ifindex; |
827 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
d62a17ae | 828 | if (set) { |
f89c0aed | 829 | /* Check once more whether this prefix is within a |
d62a17ae | 830 | * "network IF_OR_PREF" one */ |
045c5389 RW |
831 | if ((rip_enable_if_lookup(rip, connected->ifp->name) |
832 | >= 0) | |
d62a17ae | 833 | || (rip_enable_network_lookup2(connected) >= 0)) |
045c5389 | 834 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, |
996c9314 LB |
835 | RIP_ROUTE_INTERFACE, |
836 | &address, &nh, 0, 0, 0); | |
d62a17ae | 837 | } else { |
045c5389 | 838 | rip_redistribute_delete(rip, ZEBRA_ROUTE_CONNECT, |
d62a17ae | 839 | RIP_ROUTE_INTERFACE, &address, |
840 | connected->ifp->ifindex); | |
045c5389 RW |
841 | if (rip_redistribute_check(rip, ZEBRA_ROUTE_CONNECT)) |
842 | rip_redistribute_add(rip, ZEBRA_ROUTE_CONNECT, | |
996c9314 LB |
843 | RIP_ROUTE_REDISTRIBUTE, |
844 | &address, &nh, 0, 0, 0); | |
d62a17ae | 845 | } |
846 | } | |
718e3744 | 847 | } |
848 | ||
849 | /* Update interface status. */ | |
d62a17ae | 850 | void rip_enable_apply(struct interface *ifp) |
718e3744 | 851 | { |
d62a17ae | 852 | int ret; |
853 | struct rip_interface *ri = NULL; | |
718e3744 | 854 | |
d62a17ae | 855 | /* Check interface. */ |
856 | if (!if_is_operative(ifp)) | |
857 | return; | |
718e3744 | 858 | |
d62a17ae | 859 | ri = ifp->info; |
860 | ||
861 | /* Check network configuration. */ | |
862 | ret = rip_enable_network_lookup_if(ifp); | |
863 | ||
864 | /* If the interface is matched. */ | |
865 | if (ret > 0) | |
866 | ri->enable_network = 1; | |
867 | else | |
868 | ri->enable_network = 0; | |
869 | ||
870 | /* Check interface name configuration. */ | |
045c5389 | 871 | ret = rip_enable_if_lookup(ri->rip, ifp->name); |
d62a17ae | 872 | if (ret >= 0) |
873 | ri->enable_interface = 1; | |
874 | else | |
875 | ri->enable_interface = 0; | |
718e3744 | 876 | |
d62a17ae | 877 | /* any interface MUST have an IPv4 address */ |
878 | if (!rip_if_ipv4_address_check(ifp)) { | |
879 | ri->enable_network = 0; | |
880 | ri->enable_interface = 0; | |
718e3744 | 881 | } |
718e3744 | 882 | |
d62a17ae | 883 | /* Update running status of the interface. */ |
884 | if (ri->enable_network || ri->enable_interface) { | |
2e37ad7f RW |
885 | if (IS_RIP_DEBUG_EVENT) |
886 | zlog_debug("turn on %s", ifp->name); | |
887 | ||
888 | /* Add interface wake up thread. */ | |
907a2395 DS |
889 | event_add_timer(master, rip_interface_wakeup, ifp, 1, |
890 | &ri->t_wakeup); | |
2e37ad7f RW |
891 | rip_connect_set(ifp, 1); |
892 | } else if (ri->running) { | |
893 | /* Might as well clean up the route table as well | |
894 | * rip_if_down sets to 0 ri->running, and displays "turn | |
895 | *off %s" | |
896 | **/ | |
897 | rip_if_down(ifp); | |
d62a17ae | 898 | |
2e37ad7f | 899 | rip_connect_set(ifp, 0); |
718e3744 | 900 | } |
718e3744 | 901 | } |
902 | ||
903 | /* Apply network configuration to all interface. */ | |
045c5389 | 904 | static void rip_enable_apply_all(struct rip *rip) |
718e3744 | 905 | { |
d62a17ae | 906 | struct interface *ifp; |
718e3744 | 907 | |
d62a17ae | 908 | /* Check each interface. */ |
ae7b826a | 909 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 910 | rip_enable_apply(ifp); |
718e3744 | 911 | } |
912 | ||
045c5389 | 913 | int rip_neighbor_lookup(struct rip *rip, struct sockaddr_in *from) |
718e3744 | 914 | { |
d62a17ae | 915 | struct prefix_ipv4 p; |
916 | struct route_node *node; | |
718e3744 | 917 | |
6006b807 | 918 | memset(&p, 0, sizeof(p)); |
d62a17ae | 919 | p.family = AF_INET; |
920 | p.prefix = from->sin_addr; | |
921 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 922 | |
d62a17ae | 923 | node = route_node_lookup(rip->neighbor, (struct prefix *)&p); |
924 | if (node) { | |
925 | route_unlock_node(node); | |
926 | return 1; | |
927 | } | |
928 | return 0; | |
718e3744 | 929 | } |
930 | ||
931 | /* Add new RIP neighbor to the neighbor tree. */ | |
045c5389 | 932 | int rip_neighbor_add(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 933 | { |
d62a17ae | 934 | struct route_node *node; |
718e3744 | 935 | |
d62a17ae | 936 | node = route_node_get(rip->neighbor, (struct prefix *)p); |
718e3744 | 937 | |
d62a17ae | 938 | if (node->info) |
f0ab22fb | 939 | return NB_ERR_INCONSISTENCY; |
718e3744 | 940 | |
d62a17ae | 941 | node->info = rip->neighbor; |
718e3744 | 942 | |
f0ab22fb | 943 | return NB_OK; |
718e3744 | 944 | } |
945 | ||
946 | /* Delete RIP neighbor from the neighbor tree. */ | |
045c5389 | 947 | int rip_neighbor_delete(struct rip *rip, struct prefix_ipv4 *p) |
718e3744 | 948 | { |
d62a17ae | 949 | struct route_node *node; |
718e3744 | 950 | |
d62a17ae | 951 | /* Lock for look up. */ |
952 | node = route_node_lookup(rip->neighbor, (struct prefix *)p); | |
953 | if (!node) | |
f0ab22fb | 954 | return NB_ERR_INCONSISTENCY; |
718e3744 | 955 | |
d62a17ae | 956 | node->info = NULL; |
718e3744 | 957 | |
d62a17ae | 958 | /* Unlock lookup lock. */ |
959 | route_unlock_node(node); | |
718e3744 | 960 | |
d62a17ae | 961 | /* Unlock real neighbor information lock. */ |
962 | route_unlock_node(node); | |
963 | ||
f0ab22fb | 964 | return NB_OK; |
718e3744 | 965 | } |
966 | ||
967 | /* Clear all network and neighbor configuration. */ | |
045c5389 | 968 | void rip_clean_network(struct rip *rip) |
d62a17ae | 969 | { |
970 | unsigned int i; | |
971 | char *str; | |
972 | struct route_node *rn; | |
973 | ||
1205fdc4 RW |
974 | /* rip->enable_network. */ |
975 | for (rn = route_top(rip->enable_network); rn; rn = route_next(rn)) | |
d62a17ae | 976 | if (rn->info) { |
977 | rn->info = NULL; | |
978 | route_unlock_node(rn); | |
979 | } | |
980 | ||
ca046902 RW |
981 | /* rip->enable_interface. */ |
982 | for (i = 0; i < vector_active(rip->enable_interface); i++) | |
983 | if ((str = vector_slot(rip->enable_interface, i)) != NULL) { | |
03c20031 | 984 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
ca046902 | 985 | vector_slot(rip->enable_interface, i) = NULL; |
d62a17ae | 986 | } |
718e3744 | 987 | } |
6b0655a2 | 988 | |
718e3744 | 989 | /* Utility function for looking up passive interface settings. */ |
045c5389 | 990 | static int rip_passive_nondefault_lookup(struct rip *rip, const char *ifname) |
718e3744 | 991 | { |
d62a17ae | 992 | unsigned int i; |
993 | char *str; | |
718e3744 | 994 | |
5a29c0d5 RW |
995 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
996 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) | |
d62a17ae | 997 | if (strcmp(str, ifname) == 0) |
998 | return i; | |
999 | return -1; | |
718e3744 | 1000 | } |
1001 | ||
045c5389 | 1002 | static void rip_passive_interface_apply(struct interface *ifp) |
718e3744 | 1003 | { |
045c5389 | 1004 | struct rip *rip; |
d62a17ae | 1005 | struct rip_interface *ri; |
718e3744 | 1006 | |
045c5389 RW |
1007 | ri = ifp->info; |
1008 | rip = ri->rip; | |
44f2f852 RW |
1009 | if (rip == NULL) |
1010 | return; | |
1011 | ||
045c5389 | 1012 | ri->passive = ((rip_passive_nondefault_lookup(rip, ifp->name) < 0) |
44f2f852 RW |
1013 | ? rip->passive_default |
1014 | : !rip->passive_default); | |
4aaff3f8 | 1015 | |
d62a17ae | 1016 | if (IS_RIP_DEBUG_ZEBRA) |
1017 | zlog_debug("interface %s: passive = %d", ifp->name, | |
1018 | ri->passive); | |
718e3744 | 1019 | } |
1020 | ||
045c5389 | 1021 | static void rip_passive_interface_apply_all(struct rip *rip) |
718e3744 | 1022 | { |
d62a17ae | 1023 | struct interface *ifp; |
718e3744 | 1024 | |
ae7b826a | 1025 | FOR_ALL_INTERFACES (rip->vrf, ifp) |
d62a17ae | 1026 | rip_passive_interface_apply(ifp); |
718e3744 | 1027 | } |
1028 | ||
1029 | /* Passive interface. */ | |
045c5389 | 1030 | int rip_passive_nondefault_set(struct rip *rip, const char *ifname) |
718e3744 | 1031 | { |
045c5389 | 1032 | if (rip_passive_nondefault_lookup(rip, ifname) >= 0) |
44f2f852 RW |
1033 | /* |
1034 | * Don't return an error, this can happen after changing | |
1035 | * 'passive-default'. | |
1036 | */ | |
1037 | return NB_OK; | |
718e3744 | 1038 | |
5a29c0d5 | 1039 | vector_set(rip->passive_nondefault, |
03c20031 | 1040 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); |
718e3744 | 1041 | |
045c5389 | 1042 | rip_passive_interface_apply_all(rip); |
718e3744 | 1043 | |
44f2f852 | 1044 | return NB_OK; |
718e3744 | 1045 | } |
1046 | ||
045c5389 | 1047 | int rip_passive_nondefault_unset(struct rip *rip, const char *ifname) |
718e3744 | 1048 | { |
d62a17ae | 1049 | int i; |
1050 | char *str; | |
718e3744 | 1051 | |
045c5389 | 1052 | i = rip_passive_nondefault_lookup(rip, ifname); |
d62a17ae | 1053 | if (i < 0) |
44f2f852 RW |
1054 | /* |
1055 | * Don't return an error, this can happen after changing | |
1056 | * 'passive-default'. | |
1057 | */ | |
1058 | return NB_OK; | |
718e3744 | 1059 | |
5a29c0d5 | 1060 | str = vector_slot(rip->passive_nondefault, i); |
03c20031 | 1061 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1062 | vector_unset(rip->passive_nondefault, i); |
718e3744 | 1063 | |
045c5389 | 1064 | rip_passive_interface_apply_all(rip); |
718e3744 | 1065 | |
44f2f852 | 1066 | return NB_OK; |
718e3744 | 1067 | } |
1068 | ||
1069 | /* Free all configured RIP passive-interface settings. */ | |
045c5389 | 1070 | void rip_passive_nondefault_clean(struct rip *rip) |
718e3744 | 1071 | { |
d62a17ae | 1072 | unsigned int i; |
1073 | char *str; | |
718e3744 | 1074 | |
5a29c0d5 RW |
1075 | for (i = 0; i < vector_active(rip->passive_nondefault); i++) |
1076 | if ((str = vector_slot(rip->passive_nondefault, i)) != NULL) { | |
03c20031 | 1077 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
5a29c0d5 | 1078 | vector_slot(rip->passive_nondefault, i) = NULL; |
d62a17ae | 1079 | } |
045c5389 | 1080 | rip_passive_interface_apply_all(rip); |
718e3744 | 1081 | } |
6b0655a2 | 1082 | |
045c5389 | 1083 | int rip_show_network_config(struct vty *vty, struct rip *rip) |
d62a17ae | 1084 | { |
1085 | unsigned int i; | |
1086 | char *ifname; | |
1087 | struct route_node *node; | |
1088 | ||
1089 | /* Network type RIP enable interface statement. */ | |
1205fdc4 | 1090 | for (node = route_top(rip->enable_network); node; |
d62a17ae | 1091 | node = route_next(node)) |
1092 | if (node->info) | |
53bb7f9b | 1093 | vty_out(vty, " %pFX\n", &node->p); |
d62a17ae | 1094 | |
1095 | /* Interface name RIP enable statement. */ | |
ca046902 RW |
1096 | for (i = 0; i < vector_active(rip->enable_interface); i++) |
1097 | if ((ifname = vector_slot(rip->enable_interface, i)) != NULL) | |
44f2f852 | 1098 | vty_out(vty, " %s\n", ifname); |
d62a17ae | 1099 | |
1100 | /* RIP neighbors listing. */ | |
1101 | for (node = route_top(rip->neighbor); node; node = route_next(node)) | |
1102 | if (node->info) | |
53bb7f9b | 1103 | vty_out(vty, " %pI4\n", &node->p.u.prefix4); |
718e3744 | 1104 | |
d62a17ae | 1105 | return 0; |
1106 | } | |
1107 | ||
ae7b826a RW |
1108 | void rip_interface_sync(struct interface *ifp) |
1109 | { | |
096f7609 | 1110 | struct rip_interface *ri; |
ae7b826a | 1111 | |
096f7609 | 1112 | ri = ifp->info; |
c262df82 | 1113 | ri->ifp = ifp; |
096f7609 IR |
1114 | if (ri) |
1115 | ri->rip = ifp->vrf->info; | |
ae7b826a RW |
1116 | } |
1117 | ||
718e3744 | 1118 | /* Called when interface structure allocated. */ |
d62a17ae | 1119 | static int rip_interface_new_hook(struct interface *ifp) |
718e3744 | 1120 | { |
d62a17ae | 1121 | ifp->info = rip_interface_new(); |
ae7b826a RW |
1122 | rip_interface_sync(ifp); |
1123 | ||
d62a17ae | 1124 | return 0; |
718e3744 | 1125 | } |
1126 | ||
1127 | /* Called when interface structure deleted. */ | |
d62a17ae | 1128 | static int rip_interface_delete_hook(struct interface *ifp) |
718e3744 | 1129 | { |
72010aca | 1130 | rip_interface_reset(ifp->info); |
d62a17ae | 1131 | XFREE(MTYPE_RIP_INTERFACE, ifp->info); |
d62a17ae | 1132 | return 0; |
718e3744 | 1133 | } |
1134 | ||
1135 | /* Allocate and initialize interface vector. */ | |
d62a17ae | 1136 | void rip_if_init(void) |
718e3744 | 1137 | { |
d62a17ae | 1138 | /* Default initial size of interface vector. */ |
ce19a04a DL |
1139 | hook_register_prio(if_add, 0, rip_interface_new_hook); |
1140 | hook_register_prio(if_del, 0, rip_interface_delete_hook); | |
d62a17ae | 1141 | |
d62a17ae | 1142 | /* Install interface node. */ |
104fd767 | 1143 | if_cmd_init_default(); |
138c5a74 DS |
1144 | if_zapi_callbacks(rip_ifp_create, rip_ifp_up, |
1145 | rip_ifp_down, rip_ifp_destroy); | |
718e3744 | 1146 | } |