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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 | |
d62a17ae | 46 | DEFINE_HOOK(rip_ifaddr_add, (struct connected * ifc), (ifc)) |
47 | DEFINE_HOOK(rip_ifaddr_del, (struct connected * ifc), (ifc)) | |
3012671f | 48 | |
dc63bfd4 | 49 | /* static prototypes */ |
d62a17ae | 50 | static void rip_enable_apply(struct interface *); |
51 | static void rip_passive_interface_apply(struct interface *); | |
dc63bfd4 | 52 | static int rip_if_down(struct interface *ifp); |
d62a17ae | 53 | static int rip_enable_if_lookup(const char *ifname); |
54 | static int rip_enable_network_lookup2(struct connected *connected); | |
55 | static void rip_enable_apply_all(void); | |
6b0655a2 | 56 | |
d62a17ae | 57 | const struct message ri_version_msg[] = {{RI_RIP_VERSION_1, "1"}, |
58 | {RI_RIP_VERSION_2, "2"}, | |
59 | {RI_RIP_VERSION_1_AND_2, "1 2"}, | |
60 | {RI_RIP_VERSION_NONE, "none"}, | |
61 | {0}}; | |
718e3744 | 62 | |
63 | /* RIP enabled network vector. */ | |
64 | vector rip_enable_interface; | |
65 | ||
66 | /* RIP enabled interface table. */ | |
67 | struct route_table *rip_enable_network; | |
68 | ||
69 | /* Vector to store passive-interface name. */ | |
4aaff3f8 | 70 | vector Vrip_passive_nondefault; |
6b0655a2 | 71 | |
718e3744 | 72 | /* Join to the RIP version 2 multicast group. */ |
d62a17ae | 73 | static int ipv4_multicast_join(int sock, struct in_addr group, |
74 | struct in_addr ifa, ifindex_t ifindex) | |
718e3744 | 75 | { |
d62a17ae | 76 | int ret; |
718e3744 | 77 | |
d62a17ae | 78 | ret = setsockopt_ipv4_multicast(sock, IP_ADD_MEMBERSHIP, ifa, |
79 | group.s_addr, ifindex); | |
718e3744 | 80 | |
d62a17ae | 81 | if (ret < 0) |
82 | zlog_info("can't setsockopt IP_ADD_MEMBERSHIP %s", | |
83 | safe_strerror(errno)); | |
718e3744 | 84 | |
d62a17ae | 85 | return ret; |
718e3744 | 86 | } |
87 | ||
88 | /* Leave from the RIP version 2 multicast group. */ | |
d62a17ae | 89 | static int ipv4_multicast_leave(int sock, struct in_addr group, |
90 | struct in_addr ifa, ifindex_t ifindex) | |
718e3744 | 91 | { |
d62a17ae | 92 | int ret; |
718e3744 | 93 | |
d62a17ae | 94 | ret = setsockopt_ipv4_multicast(sock, IP_DROP_MEMBERSHIP, ifa, |
95 | group.s_addr, ifindex); | |
718e3744 | 96 | |
d62a17ae | 97 | if (ret < 0) |
98 | zlog_info("can't setsockopt IP_DROP_MEMBERSHIP"); | |
718e3744 | 99 | |
d62a17ae | 100 | return ret; |
718e3744 | 101 | } |
6b0655a2 | 102 | |
d62a17ae | 103 | static void rip_interface_reset(struct rip_interface *); |
1dec2166 | 104 | |
718e3744 | 105 | /* Allocate new RIP's interface configuration. */ |
d62a17ae | 106 | static struct rip_interface *rip_interface_new(void) |
718e3744 | 107 | { |
d62a17ae | 108 | struct rip_interface *ri; |
718e3744 | 109 | |
d62a17ae | 110 | ri = XCALLOC(MTYPE_RIP_INTERFACE, sizeof(struct rip_interface)); |
718e3744 | 111 | |
d62a17ae | 112 | rip_interface_reset(ri); |
718e3744 | 113 | |
d62a17ae | 114 | return ri; |
718e3744 | 115 | } |
116 | ||
d62a17ae | 117 | void rip_interface_multicast_set(int sock, struct connected *connected) |
718e3744 | 118 | { |
d62a17ae | 119 | struct in_addr addr; |
4a3867d0 | 120 | |
d62a17ae | 121 | assert(connected != NULL); |
4a3867d0 | 122 | |
d62a17ae | 123 | addr = CONNECTED_ID(connected)->u.prefix4; |
124 | ||
125 | if (setsockopt_ipv4_multicast_if(sock, addr, connected->ifp->ifindex) | |
126 | < 0) { | |
127 | zlog_warn( | |
128 | "Can't setsockopt IP_MULTICAST_IF on fd %d to " | |
129 | "ifindex %d for interface %s", | |
130 | sock, connected->ifp->ifindex, connected->ifp->name); | |
131 | } | |
4a3867d0 | 132 | |
d62a17ae | 133 | return; |
3fb9cd6e | 134 | } |
718e3744 | 135 | |
136 | /* Send RIP request packet to specified interface. */ | |
d7c0a89a | 137 | static void rip_request_interface_send(struct interface *ifp, uint8_t version) |
718e3744 | 138 | { |
d62a17ae | 139 | struct sockaddr_in to; |
718e3744 | 140 | |
d62a17ae | 141 | /* RIPv2 support multicast. */ |
142 | if (version == RIPv2 && if_is_multicast(ifp)) { | |
718e3744 | 143 | |
d62a17ae | 144 | if (IS_RIP_DEBUG_EVENT) |
145 | zlog_debug("multicast request on %s", ifp->name); | |
718e3744 | 146 | |
d62a17ae | 147 | rip_request_send(NULL, ifp, version, NULL); |
148 | return; | |
149 | } | |
718e3744 | 150 | |
d62a17ae | 151 | /* RIPv1 and non multicast interface. */ |
152 | if (if_is_pointopoint(ifp) || if_is_broadcast(ifp)) { | |
153 | struct listnode *cnode, *cnnode; | |
154 | struct connected *connected; | |
155 | ||
156 | if (IS_RIP_DEBUG_EVENT) | |
157 | zlog_debug("broadcast request to %s", ifp->name); | |
158 | ||
159 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, | |
160 | connected)) { | |
2e37ad7f RW |
161 | if (connected->address->family != AF_INET) |
162 | continue; | |
163 | ||
164 | memset(&to, 0, sizeof(struct sockaddr_in)); | |
165 | to.sin_port = htons(RIP_PORT_DEFAULT); | |
166 | if (connected->destination) | |
167 | /* use specified broadcast or peer | |
168 | * destination addr */ | |
169 | to.sin_addr = connected->destination->u.prefix4; | |
170 | else if (connected->address->prefixlen | |
171 | < IPV4_MAX_PREFIXLEN) | |
172 | /* calculate the appropriate broadcast | |
173 | * address */ | |
174 | to.sin_addr.s_addr = ipv4_broadcast_addr( | |
175 | connected->address->u.prefix4.s_addr, | |
176 | connected->address->prefixlen); | |
177 | else | |
178 | /* do not know where to send the packet | |
179 | */ | |
180 | continue; | |
181 | ||
182 | if (IS_RIP_DEBUG_EVENT) | |
183 | zlog_debug("SEND request to %s", | |
184 | inet_ntoa(to.sin_addr)); | |
185 | ||
186 | rip_request_send(&to, ifp, version, connected); | |
d62a17ae | 187 | } |
718e3744 | 188 | } |
718e3744 | 189 | } |
190 | ||
191 | /* This will be executed when interface goes up. */ | |
d62a17ae | 192 | static void rip_request_interface(struct interface *ifp) |
718e3744 | 193 | { |
d62a17ae | 194 | struct rip_interface *ri; |
2e37ad7f | 195 | int vsend; |
718e3744 | 196 | |
d62a17ae | 197 | /* In default ripd doesn't send RIP_REQUEST to the loopback interface. |
198 | */ | |
199 | if (if_is_loopback(ifp)) | |
200 | return; | |
718e3744 | 201 | |
d62a17ae | 202 | /* If interface is down, don't send RIP packet. */ |
203 | if (!if_is_operative(ifp)) | |
204 | return; | |
718e3744 | 205 | |
d62a17ae | 206 | /* Fetch RIP interface information. */ |
207 | ri = ifp->info; | |
718e3744 | 208 | |
d62a17ae | 209 | /* If there is no version configuration in the interface, |
210 | use rip's version setting. */ | |
2e37ad7f RW |
211 | vsend = ((ri->ri_send == RI_RIP_UNSPEC) ? rip->version_send |
212 | : ri->ri_send); | |
213 | if (vsend & RIPv1) | |
214 | rip_request_interface_send(ifp, RIPv1); | |
215 | if (vsend & RIPv2) | |
216 | rip_request_interface_send(ifp, RIPv2); | |
718e3744 | 217 | } |
218 | ||
2c239705 | 219 | #if 0 |
718e3744 | 220 | /* Send RIP request to the neighbor. */ |
dc63bfd4 | 221 | static void |
718e3744 | 222 | rip_request_neighbor (struct in_addr addr) |
223 | { | |
224 | struct sockaddr_in to; | |
225 | ||
226 | memset (&to, 0, sizeof (struct sockaddr_in)); | |
227 | to.sin_port = htons (RIP_PORT_DEFAULT); | |
228 | to.sin_addr = addr; | |
229 | ||
931cd54d | 230 | rip_request_send (&to, NULL, rip->version_send, NULL); |
718e3744 | 231 | } |
232 | ||
233 | /* Request routes at all interfaces. */ | |
dc63bfd4 | 234 | static void |
235 | rip_request_neighbor_all (void) | |
718e3744 | 236 | { |
237 | struct route_node *rp; | |
238 | ||
239 | if (! rip) | |
240 | return; | |
241 | ||
242 | if (IS_RIP_DEBUG_EVENT) | |
5d6c3779 | 243 | zlog_debug ("request to the all neighbor"); |
718e3744 | 244 | |
245 | /* Send request to all neighbor. */ | |
246 | for (rp = route_top (rip->neighbor); rp; rp = route_next (rp)) | |
247 | if (rp->info) | |
248 | rip_request_neighbor (rp->p.u.prefix4); | |
249 | } | |
2c239705 | 250 | #endif |
718e3744 | 251 | |
252 | /* Multicast packet receive socket. */ | |
d62a17ae | 253 | static int rip_multicast_join(struct interface *ifp, int sock) |
718e3744 | 254 | { |
d62a17ae | 255 | struct listnode *cnode; |
256 | struct connected *ifc; | |
718e3744 | 257 | |
d62a17ae | 258 | if (if_is_operative(ifp) && if_is_multicast(ifp)) { |
259 | if (IS_RIP_DEBUG_EVENT) | |
260 | zlog_debug("multicast join at %s", ifp->name); | |
718e3744 | 261 | |
d62a17ae | 262 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, ifc)) { |
263 | struct prefix_ipv4 *p; | |
264 | struct in_addr group; | |
265 | ||
266 | p = (struct prefix_ipv4 *)ifc->address; | |
267 | ||
268 | if (p->family != AF_INET) | |
269 | continue; | |
270 | ||
271 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
272 | if (ipv4_multicast_join(sock, group, p->prefix, | |
273 | ifp->ifindex) | |
274 | < 0) | |
275 | return -1; | |
276 | else | |
277 | return 0; | |
278 | } | |
718e3744 | 279 | } |
d62a17ae | 280 | return 0; |
718e3744 | 281 | } |
282 | ||
283 | /* Leave from multicast group. */ | |
d62a17ae | 284 | static void rip_multicast_leave(struct interface *ifp, int sock) |
718e3744 | 285 | { |
d62a17ae | 286 | struct listnode *cnode; |
287 | struct connected *connected; | |
718e3744 | 288 | |
d62a17ae | 289 | if (if_is_up(ifp) && if_is_multicast(ifp)) { |
290 | if (IS_RIP_DEBUG_EVENT) | |
291 | zlog_debug("multicast leave from %s", ifp->name); | |
718e3744 | 292 | |
d62a17ae | 293 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
294 | struct prefix_ipv4 *p; | |
295 | struct in_addr group; | |
296 | ||
297 | p = (struct prefix_ipv4 *)connected->address; | |
298 | ||
299 | if (p->family != AF_INET) | |
300 | continue; | |
301 | ||
302 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
303 | if (ipv4_multicast_leave(sock, group, p->prefix, | |
304 | ifp->ifindex) | |
305 | == 0) | |
306 | return; | |
307 | } | |
308 | } | |
718e3744 | 309 | } |
310 | ||
311 | /* Is there and address on interface that I could use ? */ | |
d62a17ae | 312 | static int rip_if_ipv4_address_check(struct interface *ifp) |
718e3744 | 313 | { |
d62a17ae | 314 | struct listnode *nn; |
315 | struct connected *connected; | |
316 | int count = 0; | |
718e3744 | 317 | |
d62a17ae | 318 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, nn, connected)) { |
319 | struct prefix *p; | |
718e3744 | 320 | |
d62a17ae | 321 | p = connected->address; |
322 | ||
323 | if (p->family == AF_INET) | |
324 | count++; | |
325 | } | |
718e3744 | 326 | |
d62a17ae | 327 | return count; |
718e3744 | 328 | } |
d62a17ae | 329 | |
31a476c7 | 330 | |
331 | /* Does this address belongs to me ? */ | |
d62a17ae | 332 | int if_check_address(struct in_addr addr) |
333 | { | |
f4e14fdb | 334 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 335 | struct interface *ifp; |
31a476c7 | 336 | |
451fda4f | 337 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 338 | struct listnode *cnode; |
339 | struct connected *connected; | |
31a476c7 | 340 | |
d62a17ae | 341 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
342 | struct prefix_ipv4 *p; | |
31a476c7 | 343 | |
d62a17ae | 344 | p = (struct prefix_ipv4 *)connected->address; |
345 | ||
346 | if (p->family != AF_INET) | |
347 | continue; | |
348 | ||
349 | if (IPV4_ADDR_CMP(&p->prefix, &addr) == 0) | |
350 | return 1; | |
351 | } | |
31a476c7 | 352 | } |
d62a17ae | 353 | return 0; |
31a476c7 | 354 | } |
355 | ||
718e3744 | 356 | /* Inteface link down message processing. */ |
d62a17ae | 357 | int rip_interface_down(int command, struct zclient *zclient, |
358 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 359 | { |
d62a17ae | 360 | struct interface *ifp; |
361 | struct stream *s; | |
718e3744 | 362 | |
d62a17ae | 363 | s = zclient->ibuf; |
718e3744 | 364 | |
d62a17ae | 365 | /* zebra_interface_state_read() updates interface structure in |
366 | iflist. */ | |
367 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 368 | |
d62a17ae | 369 | if (ifp == NULL) |
370 | return 0; | |
718e3744 | 371 | |
d62a17ae | 372 | rip_if_down(ifp); |
718e3744 | 373 | |
d62a17ae | 374 | if (IS_RIP_DEBUG_ZEBRA) |
375 | zlog_debug( | |
376 | "interface %s index %d flags %llx metric %d mtu %d is down", | |
377 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
378 | ifp->metric, ifp->mtu); | |
379 | ||
380 | return 0; | |
718e3744 | 381 | } |
382 | ||
383 | /* Inteface link up message processing */ | |
d62a17ae | 384 | int rip_interface_up(int command, struct zclient *zclient, zebra_size_t length, |
385 | vrf_id_t vrf_id) | |
718e3744 | 386 | { |
d62a17ae | 387 | struct interface *ifp; |
388 | ||
389 | /* zebra_interface_state_read () updates interface structure in | |
390 | iflist. */ | |
391 | ifp = zebra_interface_state_read(zclient->ibuf, vrf_id); | |
718e3744 | 392 | |
d62a17ae | 393 | if (ifp == NULL) |
394 | return 0; | |
718e3744 | 395 | |
d62a17ae | 396 | if (IS_RIP_DEBUG_ZEBRA) |
397 | zlog_debug( | |
398 | "interface %s index %d flags %#llx metric %d mtu %d is up", | |
399 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
400 | ifp->metric, ifp->mtu); | |
718e3744 | 401 | |
d62a17ae | 402 | /* Check if this interface is RIP enabled or not.*/ |
403 | rip_enable_apply(ifp); | |
718e3744 | 404 | |
d62a17ae | 405 | /* Check for a passive interface */ |
406 | rip_passive_interface_apply(ifp); | |
718e3744 | 407 | |
d62a17ae | 408 | /* Apply distribute list to the all interface. */ |
409 | rip_distribute_update_interface(ifp); | |
718e3744 | 410 | |
d62a17ae | 411 | return 0; |
718e3744 | 412 | } |
413 | ||
414 | /* Inteface addition message from zebra. */ | |
d62a17ae | 415 | int rip_interface_add(int command, struct zclient *zclient, zebra_size_t length, |
416 | vrf_id_t vrf_id) | |
718e3744 | 417 | { |
d62a17ae | 418 | struct interface *ifp; |
718e3744 | 419 | |
d62a17ae | 420 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
718e3744 | 421 | |
d62a17ae | 422 | if (IS_RIP_DEBUG_ZEBRA) |
423 | zlog_debug( | |
424 | "interface add %s index %d flags %#llx metric %d mtu %d", | |
425 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
426 | ifp->metric, ifp->mtu); | |
718e3744 | 427 | |
d62a17ae | 428 | /* Check if this interface is RIP enabled or not.*/ |
429 | rip_enable_apply(ifp); | |
718e3744 | 430 | |
d62a17ae | 431 | /* Check for a passive interface */ |
432 | rip_passive_interface_apply(ifp); | |
718e3744 | 433 | |
d62a17ae | 434 | /* Apply distribute list to the all interface. */ |
435 | rip_distribute_update_interface(ifp); | |
718e3744 | 436 | |
d62a17ae | 437 | /* rip_request_neighbor_all (); */ |
16705130 | 438 | |
d62a17ae | 439 | /* Check interface routemap. */ |
440 | rip_if_rmap_update_interface(ifp); | |
441 | ||
442 | return 0; | |
718e3744 | 443 | } |
444 | ||
d62a17ae | 445 | int rip_interface_delete(int command, struct zclient *zclient, |
446 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 447 | { |
d62a17ae | 448 | struct interface *ifp; |
449 | struct stream *s; | |
450 | ||
718e3744 | 451 | |
d62a17ae | 452 | s = zclient->ibuf; |
453 | /* zebra_interface_state_read() updates interface structure in iflist */ | |
454 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 455 | |
d62a17ae | 456 | if (ifp == NULL) |
457 | return 0; | |
458 | ||
459 | if (if_is_up(ifp)) { | |
460 | rip_if_down(ifp); | |
461 | } | |
718e3744 | 462 | |
d62a17ae | 463 | zlog_info("interface delete %s index %d flags %#llx metric %d mtu %d", |
464 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
465 | ifp->metric, ifp->mtu); | |
718e3744 | 466 | |
d62a17ae | 467 | /* To support pseudo interface do not free interface structure. */ |
468 | /* if_delete(ifp); */ | |
ff880b78 | 469 | if_set_index(ifp, IFINDEX_INTERNAL); |
718e3744 | 470 | |
d62a17ae | 471 | return 0; |
718e3744 | 472 | } |
473 | ||
d62a17ae | 474 | static void rip_interface_clean(struct rip_interface *ri) |
4305dfd1 | 475 | { |
d62a17ae | 476 | ri->enable_network = 0; |
477 | ri->enable_interface = 0; | |
478 | ri->running = 0; | |
718e3744 | 479 | |
d62a17ae | 480 | if (ri->t_wakeup) { |
481 | thread_cancel(ri->t_wakeup); | |
482 | ri->t_wakeup = NULL; | |
483 | } | |
4305dfd1 | 484 | } |
718e3744 | 485 | |
d62a17ae | 486 | void rip_interfaces_clean(void) |
718e3744 | 487 | { |
f4e14fdb | 488 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 489 | struct interface *ifp; |
718e3744 | 490 | |
451fda4f | 491 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 492 | rip_interface_clean(ifp->info); |
1dec2166 | 493 | } |
718e3744 | 494 | |
d62a17ae | 495 | static void rip_interface_reset(struct rip_interface *ri) |
4305dfd1 | 496 | { |
94b117b2 RW |
497 | ri->auth_type = yang_get_default_enum("%s/authentication-scheme/mode", |
498 | RIP_IFACE); | |
499 | ri->md5_auth_len = yang_get_default_enum( | |
500 | "%s/authentication-scheme/md5-auth-length", RIP_IFACE); | |
718e3744 | 501 | |
d62a17ae | 502 | /* Set default split-horizon behavior. If the interface is Frame |
503 | Relay or SMDS is enabled, the default value for split-horizon is | |
504 | off. But currently Zebra does detect Frame Relay or SMDS | |
505 | interface. So all interface is set to split horizon. */ | |
94b117b2 RW |
506 | ri->split_horizon = |
507 | yang_get_default_enum("%s/split-horizon", RIP_IFACE); | |
718e3744 | 508 | |
94b117b2 RW |
509 | ri->ri_send = yang_get_default_enum("%s/version-send", RIP_IFACE); |
510 | ri->ri_receive = yang_get_default_enum("%s/version-receive", RIP_IFACE); | |
511 | ri->v2_broadcast = yang_get_default_bool("%s/v2-broadcast", RIP_IFACE); | |
f90310cf | 512 | |
03c20031 DS |
513 | if (ri->auth_str) |
514 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->auth_str); | |
515 | ||
516 | if (ri->key_chain) | |
517 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->key_chain); | |
518 | ||
d62a17ae | 519 | ri->list[RIP_FILTER_IN] = NULL; |
520 | ri->list[RIP_FILTER_OUT] = NULL; | |
718e3744 | 521 | |
d62a17ae | 522 | ri->prefix[RIP_FILTER_IN] = NULL; |
523 | ri->prefix[RIP_FILTER_OUT] = NULL; | |
718e3744 | 524 | |
d62a17ae | 525 | ri->recv_badpackets = 0; |
526 | ri->recv_badroutes = 0; | |
527 | ri->sent_updates = 0; | |
4305dfd1 | 528 | |
d62a17ae | 529 | ri->passive = 0; |
718e3744 | 530 | |
d62a17ae | 531 | rip_interface_clean(ri); |
4305dfd1 | 532 | } |
718e3744 | 533 | |
d62a17ae | 534 | int rip_if_down(struct interface *ifp) |
718e3744 | 535 | { |
d62a17ae | 536 | struct route_node *rp; |
537 | struct rip_info *rinfo; | |
538 | struct rip_interface *ri = NULL; | |
539 | struct list *list = NULL; | |
540 | struct listnode *listnode = NULL, *nextnode = NULL; | |
541 | if (rip) { | |
542 | for (rp = route_top(rip->table); rp; rp = route_next(rp)) | |
543 | if ((list = rp->info) != NULL) | |
544 | for (ALL_LIST_ELEMENTS(list, listnode, nextnode, | |
545 | rinfo)) | |
dd127197 | 546 | if (rinfo->nh.ifindex == ifp->ifindex) |
d62a17ae | 547 | rip_ecmp_delete(rinfo); |
548 | ||
549 | ri = ifp->info; | |
550 | ||
551 | if (ri->running) { | |
552 | if (IS_RIP_DEBUG_EVENT) | |
553 | zlog_debug("turn off %s", ifp->name); | |
554 | ||
555 | /* Leave from multicast group. */ | |
556 | rip_multicast_leave(ifp, rip->sock); | |
557 | ||
558 | ri->running = 0; | |
559 | } | |
560 | } | |
561 | ||
562 | return 0; | |
718e3744 | 563 | } |
564 | ||
565 | /* Needed for stop RIP process. */ | |
d62a17ae | 566 | void rip_if_down_all() |
718e3744 | 567 | { |
f4e14fdb | 568 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 569 | struct interface *ifp; |
718e3744 | 570 | |
451fda4f | 571 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 572 | rip_if_down(ifp); |
718e3744 | 573 | } |
574 | ||
d62a17ae | 575 | static void rip_apply_address_add(struct connected *ifc) |
dc63bfd4 | 576 | { |
d62a17ae | 577 | struct prefix_ipv4 address; |
3f5682c8 | 578 | struct nexthop nh; |
d62a17ae | 579 | struct prefix *p; |
16705130 | 580 | |
d62a17ae | 581 | if (!rip) |
582 | return; | |
16705130 | 583 | |
d62a17ae | 584 | if (!if_is_up(ifc->ifp)) |
585 | return; | |
16705130 | 586 | |
d62a17ae | 587 | p = ifc->address; |
16705130 | 588 | |
d62a17ae | 589 | memset(&address, 0, sizeof(address)); |
3f5682c8 DS |
590 | memset(&nh, 0, sizeof(nh)); |
591 | ||
d62a17ae | 592 | address.family = p->family; |
593 | address.prefix = p->u.prefix4; | |
594 | address.prefixlen = p->prefixlen; | |
595 | apply_mask_ipv4(&address); | |
16705130 | 596 | |
3f5682c8 DS |
597 | nh.ifindex = ifc->ifp->ifindex; |
598 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
599 | ||
d62a17ae | 600 | /* Check if this interface is RIP enabled or not |
601 | or Check if this address's prefix is RIP enabled */ | |
602 | if ((rip_enable_if_lookup(ifc->ifp->name) >= 0) | |
603 | || (rip_enable_network_lookup2(ifc) >= 0)) | |
604 | rip_redistribute_add(ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, | |
3f5682c8 | 605 | &address, &nh, 0, 0, 0); |
16705130 | 606 | } |
607 | ||
d62a17ae | 608 | int rip_interface_address_add(int command, struct zclient *zclient, |
609 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 610 | { |
d62a17ae | 611 | struct connected *ifc; |
612 | struct prefix *p; | |
718e3744 | 613 | |
d62a17ae | 614 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, |
615 | zclient->ibuf, vrf_id); | |
718e3744 | 616 | |
d62a17ae | 617 | if (ifc == NULL) |
618 | return 0; | |
718e3744 | 619 | |
d62a17ae | 620 | p = ifc->address; |
718e3744 | 621 | |
d62a17ae | 622 | if (p->family == AF_INET) { |
623 | if (IS_RIP_DEBUG_ZEBRA) | |
624 | zlog_debug("connected address %s/%d is added", | |
625 | inet_ntoa(p->u.prefix4), p->prefixlen); | |
16705130 | 626 | |
d62a17ae | 627 | rip_enable_apply(ifc->ifp); |
628 | /* Check if this prefix needs to be redistributed */ | |
629 | rip_apply_address_add(ifc); | |
718e3744 | 630 | |
d62a17ae | 631 | hook_call(rip_ifaddr_add, ifc); |
632 | } | |
718e3744 | 633 | |
d62a17ae | 634 | return 0; |
718e3744 | 635 | } |
636 | ||
d62a17ae | 637 | static void rip_apply_address_del(struct connected *ifc) |
638 | { | |
639 | struct prefix_ipv4 address; | |
640 | struct prefix *p; | |
16705130 | 641 | |
d62a17ae | 642 | if (!rip) |
643 | return; | |
16705130 | 644 | |
d62a17ae | 645 | if (!if_is_up(ifc->ifp)) |
646 | return; | |
16705130 | 647 | |
d62a17ae | 648 | p = ifc->address; |
16705130 | 649 | |
d62a17ae | 650 | memset(&address, 0, sizeof(address)); |
651 | address.family = p->family; | |
652 | address.prefix = p->u.prefix4; | |
653 | address.prefixlen = p->prefixlen; | |
654 | apply_mask_ipv4(&address); | |
16705130 | 655 | |
d62a17ae | 656 | rip_redistribute_delete(ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, |
657 | &address, ifc->ifp->ifindex); | |
16705130 | 658 | } |
659 | ||
d62a17ae | 660 | int rip_interface_address_delete(int command, struct zclient *zclient, |
661 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 662 | { |
d62a17ae | 663 | struct connected *ifc; |
664 | struct prefix *p; | |
718e3744 | 665 | |
d62a17ae | 666 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, |
667 | zclient->ibuf, vrf_id); | |
718e3744 | 668 | |
d62a17ae | 669 | if (ifc) { |
670 | p = ifc->address; | |
671 | if (p->family == AF_INET) { | |
672 | if (IS_RIP_DEBUG_ZEBRA) | |
673 | zlog_debug("connected address %s/%d is deleted", | |
674 | inet_ntoa(p->u.prefix4), | |
675 | p->prefixlen); | |
16705130 | 676 | |
d62a17ae | 677 | hook_call(rip_ifaddr_del, ifc); |
718e3744 | 678 | |
d62a17ae | 679 | /* Chech wether this prefix needs to be removed */ |
680 | rip_apply_address_del(ifc); | |
681 | } | |
718e3744 | 682 | |
d62a17ae | 683 | connected_free(ifc); |
684 | } | |
718e3744 | 685 | |
d62a17ae | 686 | return 0; |
718e3744 | 687 | } |
6b0655a2 | 688 | |
718e3744 | 689 | /* Check interface is enabled by network statement. */ |
16705130 | 690 | /* Check wether the interface has at least a connected prefix that |
691 | * is within the ripng_enable_network table. */ | |
d62a17ae | 692 | static int rip_enable_network_lookup_if(struct interface *ifp) |
693 | { | |
694 | struct listnode *node, *nnode; | |
695 | struct connected *connected; | |
696 | struct prefix_ipv4 address; | |
697 | ||
698 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
699 | struct prefix *p; | |
dc7204b7 | 700 | struct route_node *n; |
d62a17ae | 701 | |
702 | p = connected->address; | |
703 | ||
704 | if (p->family == AF_INET) { | |
705 | address.family = AF_INET; | |
706 | address.prefix = p->u.prefix4; | |
707 | address.prefixlen = IPV4_MAX_BITLEN; | |
708 | ||
dc7204b7 A |
709 | n = route_node_match(rip_enable_network, |
710 | (struct prefix *)&address); | |
711 | if (n) { | |
712 | route_unlock_node(n); | |
d62a17ae | 713 | return 1; |
714 | } | |
715 | } | |
716 | } | |
717 | return -1; | |
718e3744 | 718 | } |
719 | ||
16705130 | 720 | /* Check wether connected is within the ripng_enable_network table. */ |
d62a17ae | 721 | int rip_enable_network_lookup2(struct connected *connected) |
16705130 | 722 | { |
d62a17ae | 723 | struct prefix_ipv4 address; |
724 | struct prefix *p; | |
16705130 | 725 | |
d62a17ae | 726 | p = connected->address; |
16705130 | 727 | |
d62a17ae | 728 | if (p->family == AF_INET) { |
729 | struct route_node *node; | |
16705130 | 730 | |
d62a17ae | 731 | address.family = p->family; |
732 | address.prefix = p->u.prefix4; | |
733 | address.prefixlen = IPV4_MAX_BITLEN; | |
16705130 | 734 | |
d62a17ae | 735 | /* LPM on p->family, p->u.prefix4/IPV4_MAX_BITLEN within |
736 | * rip_enable_network */ | |
737 | node = route_node_match(rip_enable_network, | |
738 | (struct prefix *)&address); | |
16705130 | 739 | |
d62a17ae | 740 | if (node) { |
741 | route_unlock_node(node); | |
742 | return 1; | |
743 | } | |
744 | } | |
16705130 | 745 | |
d62a17ae | 746 | return -1; |
16705130 | 747 | } |
718e3744 | 748 | /* Add RIP enable network. */ |
3d7a1be8 | 749 | int rip_enable_network_add(struct prefix *p) |
718e3744 | 750 | { |
d62a17ae | 751 | struct route_node *node; |
718e3744 | 752 | |
d62a17ae | 753 | node = route_node_get(rip_enable_network, p); |
718e3744 | 754 | |
d62a17ae | 755 | if (node->info) { |
756 | route_unlock_node(node); | |
3d7a1be8 | 757 | return NB_ERR_INCONSISTENCY; |
d62a17ae | 758 | } else |
759 | node->info = (void *)1; | |
718e3744 | 760 | |
d62a17ae | 761 | /* XXX: One should find a better solution than a generic one */ |
762 | rip_enable_apply_all(); | |
16705130 | 763 | |
3d7a1be8 | 764 | return NB_OK; |
718e3744 | 765 | } |
766 | ||
767 | /* Delete RIP enable network. */ | |
3d7a1be8 | 768 | int rip_enable_network_delete(struct prefix *p) |
718e3744 | 769 | { |
d62a17ae | 770 | struct route_node *node; |
718e3744 | 771 | |
d62a17ae | 772 | node = route_node_lookup(rip_enable_network, p); |
773 | if (node) { | |
774 | node->info = NULL; | |
718e3744 | 775 | |
d62a17ae | 776 | /* Unlock info lock. */ |
777 | route_unlock_node(node); | |
718e3744 | 778 | |
d62a17ae | 779 | /* Unlock lookup lock. */ |
780 | route_unlock_node(node); | |
718e3744 | 781 | |
d62a17ae | 782 | /* XXX: One should find a better solution than a generic one */ |
783 | rip_enable_apply_all(); | |
16705130 | 784 | |
3d7a1be8 | 785 | return NB_OK; |
d62a17ae | 786 | } |
3d7a1be8 RW |
787 | |
788 | return NB_ERR_INCONSISTENCY; | |
718e3744 | 789 | } |
790 | ||
791 | /* Check interface is enabled by ifname statement. */ | |
d62a17ae | 792 | static int rip_enable_if_lookup(const char *ifname) |
718e3744 | 793 | { |
d62a17ae | 794 | unsigned int i; |
795 | char *str; | |
718e3744 | 796 | |
d62a17ae | 797 | for (i = 0; i < vector_active(rip_enable_interface); i++) |
798 | if ((str = vector_slot(rip_enable_interface, i)) != NULL) | |
799 | if (strcmp(str, ifname) == 0) | |
800 | return i; | |
801 | return -1; | |
718e3744 | 802 | } |
803 | ||
804 | /* Add interface to rip_enable_if. */ | |
3d7a1be8 | 805 | int rip_enable_if_add(const char *ifname) |
718e3744 | 806 | { |
d62a17ae | 807 | int ret; |
718e3744 | 808 | |
d62a17ae | 809 | ret = rip_enable_if_lookup(ifname); |
810 | if (ret >= 0) | |
3d7a1be8 | 811 | return NB_ERR_INCONSISTENCY; |
718e3744 | 812 | |
03c20031 DS |
813 | vector_set(rip_enable_interface, |
814 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); | |
718e3744 | 815 | |
d62a17ae | 816 | rip_enable_apply_all(); /* TODOVJ */ |
16705130 | 817 | |
3d7a1be8 | 818 | return NB_OK; |
718e3744 | 819 | } |
820 | ||
821 | /* Delete interface from rip_enable_if. */ | |
3d7a1be8 | 822 | int rip_enable_if_delete(const char *ifname) |
718e3744 | 823 | { |
d62a17ae | 824 | int index; |
825 | char *str; | |
718e3744 | 826 | |
d62a17ae | 827 | index = rip_enable_if_lookup(ifname); |
828 | if (index < 0) | |
3d7a1be8 | 829 | return NB_ERR_INCONSISTENCY; |
718e3744 | 830 | |
d62a17ae | 831 | str = vector_slot(rip_enable_interface, index); |
03c20031 | 832 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 833 | vector_unset(rip_enable_interface, index); |
718e3744 | 834 | |
d62a17ae | 835 | rip_enable_apply_all(); /* TODOVJ */ |
16705130 | 836 | |
3d7a1be8 | 837 | return NB_OK; |
718e3744 | 838 | } |
839 | ||
840 | /* Join to multicast group and send request to the interface. */ | |
d62a17ae | 841 | static int rip_interface_wakeup(struct thread *t) |
718e3744 | 842 | { |
d62a17ae | 843 | struct interface *ifp; |
844 | struct rip_interface *ri; | |
718e3744 | 845 | |
d62a17ae | 846 | /* Get interface. */ |
847 | ifp = THREAD_ARG(t); | |
718e3744 | 848 | |
d62a17ae | 849 | ri = ifp->info; |
850 | ri->t_wakeup = NULL; | |
718e3744 | 851 | |
d62a17ae | 852 | /* Join to multicast group. */ |
853 | if (rip_multicast_join(ifp, rip->sock) < 0) { | |
450971aa | 854 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
855 | "multicast join failed, interface %s not running", |
856 | ifp->name); | |
d62a17ae | 857 | return 0; |
858 | } | |
718e3744 | 859 | |
d62a17ae | 860 | /* Set running flag. */ |
861 | ri->running = 1; | |
862 | ||
863 | /* Send RIP request to the interface. */ | |
864 | rip_request_interface(ifp); | |
865 | ||
866 | return 0; | |
867 | } | |
868 | ||
869 | static void rip_connect_set(struct interface *ifp, int set) | |
870 | { | |
871 | struct listnode *node, *nnode; | |
872 | struct connected *connected; | |
873 | struct prefix_ipv4 address; | |
3f5682c8 DS |
874 | struct nexthop nh; |
875 | ||
876 | memset(&nh, 0, sizeof(nh)); | |
d62a17ae | 877 | |
878 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
879 | struct prefix *p; | |
880 | p = connected->address; | |
881 | ||
882 | if (p->family != AF_INET) | |
883 | continue; | |
884 | ||
885 | address.family = AF_INET; | |
886 | address.prefix = p->u.prefix4; | |
887 | address.prefixlen = p->prefixlen; | |
888 | apply_mask_ipv4(&address); | |
889 | ||
3f5682c8 DS |
890 | nh.ifindex = connected->ifp->ifindex; |
891 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
d62a17ae | 892 | if (set) { |
893 | /* Check once more wether this prefix is within a | |
894 | * "network IF_OR_PREF" one */ | |
895 | if ((rip_enable_if_lookup(connected->ifp->name) >= 0) | |
896 | || (rip_enable_network_lookup2(connected) >= 0)) | |
996c9314 LB |
897 | rip_redistribute_add(ZEBRA_ROUTE_CONNECT, |
898 | RIP_ROUTE_INTERFACE, | |
899 | &address, &nh, 0, 0, 0); | |
d62a17ae | 900 | } else { |
901 | rip_redistribute_delete(ZEBRA_ROUTE_CONNECT, | |
902 | RIP_ROUTE_INTERFACE, &address, | |
903 | connected->ifp->ifindex); | |
904 | if (rip_redistribute_check(ZEBRA_ROUTE_CONNECT)) | |
996c9314 LB |
905 | rip_redistribute_add(ZEBRA_ROUTE_CONNECT, |
906 | RIP_ROUTE_REDISTRIBUTE, | |
907 | &address, &nh, 0, 0, 0); | |
d62a17ae | 908 | } |
909 | } | |
718e3744 | 910 | } |
911 | ||
912 | /* Update interface status. */ | |
d62a17ae | 913 | void rip_enable_apply(struct interface *ifp) |
718e3744 | 914 | { |
d62a17ae | 915 | int ret; |
916 | struct rip_interface *ri = NULL; | |
718e3744 | 917 | |
d62a17ae | 918 | /* Check interface. */ |
919 | if (!if_is_operative(ifp)) | |
920 | return; | |
718e3744 | 921 | |
d62a17ae | 922 | ri = ifp->info; |
923 | ||
924 | /* Check network configuration. */ | |
925 | ret = rip_enable_network_lookup_if(ifp); | |
926 | ||
927 | /* If the interface is matched. */ | |
928 | if (ret > 0) | |
929 | ri->enable_network = 1; | |
930 | else | |
931 | ri->enable_network = 0; | |
932 | ||
933 | /* Check interface name configuration. */ | |
934 | ret = rip_enable_if_lookup(ifp->name); | |
935 | if (ret >= 0) | |
936 | ri->enable_interface = 1; | |
937 | else | |
938 | ri->enable_interface = 0; | |
718e3744 | 939 | |
d62a17ae | 940 | /* any interface MUST have an IPv4 address */ |
941 | if (!rip_if_ipv4_address_check(ifp)) { | |
942 | ri->enable_network = 0; | |
943 | ri->enable_interface = 0; | |
718e3744 | 944 | } |
718e3744 | 945 | |
d62a17ae | 946 | /* Update running status of the interface. */ |
947 | if (ri->enable_network || ri->enable_interface) { | |
2e37ad7f RW |
948 | if (IS_RIP_DEBUG_EVENT) |
949 | zlog_debug("turn on %s", ifp->name); | |
950 | ||
951 | /* Add interface wake up thread. */ | |
952 | thread_add_timer(master, rip_interface_wakeup, ifp, 1, | |
953 | &ri->t_wakeup); | |
954 | rip_connect_set(ifp, 1); | |
955 | } else if (ri->running) { | |
956 | /* Might as well clean up the route table as well | |
957 | * rip_if_down sets to 0 ri->running, and displays "turn | |
958 | *off %s" | |
959 | **/ | |
960 | rip_if_down(ifp); | |
d62a17ae | 961 | |
2e37ad7f | 962 | rip_connect_set(ifp, 0); |
718e3744 | 963 | } |
718e3744 | 964 | } |
965 | ||
966 | /* Apply network configuration to all interface. */ | |
d62a17ae | 967 | void rip_enable_apply_all() |
718e3744 | 968 | { |
f4e14fdb | 969 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 970 | struct interface *ifp; |
718e3744 | 971 | |
d62a17ae | 972 | /* Check each interface. */ |
451fda4f | 973 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 974 | rip_enable_apply(ifp); |
718e3744 | 975 | } |
976 | ||
d62a17ae | 977 | int rip_neighbor_lookup(struct sockaddr_in *from) |
718e3744 | 978 | { |
d62a17ae | 979 | struct prefix_ipv4 p; |
980 | struct route_node *node; | |
718e3744 | 981 | |
d62a17ae | 982 | memset(&p, 0, sizeof(struct prefix_ipv4)); |
983 | p.family = AF_INET; | |
984 | p.prefix = from->sin_addr; | |
985 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 986 | |
d62a17ae | 987 | node = route_node_lookup(rip->neighbor, (struct prefix *)&p); |
988 | if (node) { | |
989 | route_unlock_node(node); | |
990 | return 1; | |
991 | } | |
992 | return 0; | |
718e3744 | 993 | } |
994 | ||
995 | /* Add new RIP neighbor to the neighbor tree. */ | |
f0ab22fb | 996 | int rip_neighbor_add(struct prefix_ipv4 *p) |
718e3744 | 997 | { |
d62a17ae | 998 | struct route_node *node; |
718e3744 | 999 | |
d62a17ae | 1000 | node = route_node_get(rip->neighbor, (struct prefix *)p); |
718e3744 | 1001 | |
d62a17ae | 1002 | if (node->info) |
f0ab22fb | 1003 | return NB_ERR_INCONSISTENCY; |
718e3744 | 1004 | |
d62a17ae | 1005 | node->info = rip->neighbor; |
718e3744 | 1006 | |
f0ab22fb | 1007 | return NB_OK; |
718e3744 | 1008 | } |
1009 | ||
1010 | /* Delete RIP neighbor from the neighbor tree. */ | |
f0ab22fb | 1011 | int rip_neighbor_delete(struct prefix_ipv4 *p) |
718e3744 | 1012 | { |
d62a17ae | 1013 | struct route_node *node; |
718e3744 | 1014 | |
d62a17ae | 1015 | /* Lock for look up. */ |
1016 | node = route_node_lookup(rip->neighbor, (struct prefix *)p); | |
1017 | if (!node) | |
f0ab22fb | 1018 | return NB_ERR_INCONSISTENCY; |
718e3744 | 1019 | |
d62a17ae | 1020 | node->info = NULL; |
718e3744 | 1021 | |
d62a17ae | 1022 | /* Unlock lookup lock. */ |
1023 | route_unlock_node(node); | |
718e3744 | 1024 | |
d62a17ae | 1025 | /* Unlock real neighbor information lock. */ |
1026 | route_unlock_node(node); | |
1027 | ||
f0ab22fb | 1028 | return NB_OK; |
718e3744 | 1029 | } |
1030 | ||
1031 | /* Clear all network and neighbor configuration. */ | |
d62a17ae | 1032 | void rip_clean_network() |
1033 | { | |
1034 | unsigned int i; | |
1035 | char *str; | |
1036 | struct route_node *rn; | |
1037 | ||
1038 | /* rip_enable_network. */ | |
1039 | for (rn = route_top(rip_enable_network); rn; rn = route_next(rn)) | |
1040 | if (rn->info) { | |
1041 | rn->info = NULL; | |
1042 | route_unlock_node(rn); | |
1043 | } | |
1044 | ||
1045 | /* rip_enable_interface. */ | |
1046 | for (i = 0; i < vector_active(rip_enable_interface); i++) | |
1047 | if ((str = vector_slot(rip_enable_interface, i)) != NULL) { | |
03c20031 | 1048 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 1049 | vector_slot(rip_enable_interface, i) = NULL; |
1050 | } | |
718e3744 | 1051 | } |
6b0655a2 | 1052 | |
718e3744 | 1053 | /* Utility function for looking up passive interface settings. */ |
d62a17ae | 1054 | static int rip_passive_nondefault_lookup(const char *ifname) |
718e3744 | 1055 | { |
d62a17ae | 1056 | unsigned int i; |
1057 | char *str; | |
718e3744 | 1058 | |
d62a17ae | 1059 | for (i = 0; i < vector_active(Vrip_passive_nondefault); i++) |
1060 | if ((str = vector_slot(Vrip_passive_nondefault, i)) != NULL) | |
1061 | if (strcmp(str, ifname) == 0) | |
1062 | return i; | |
1063 | return -1; | |
718e3744 | 1064 | } |
1065 | ||
d62a17ae | 1066 | void rip_passive_interface_apply(struct interface *ifp) |
718e3744 | 1067 | { |
d62a17ae | 1068 | struct rip_interface *ri; |
718e3744 | 1069 | |
44f2f852 RW |
1070 | if (rip == NULL) |
1071 | return; | |
1072 | ||
d62a17ae | 1073 | ri = ifp->info; |
718e3744 | 1074 | |
d62a17ae | 1075 | ri->passive = ((rip_passive_nondefault_lookup(ifp->name) < 0) |
44f2f852 RW |
1076 | ? rip->passive_default |
1077 | : !rip->passive_default); | |
4aaff3f8 | 1078 | |
d62a17ae | 1079 | if (IS_RIP_DEBUG_ZEBRA) |
1080 | zlog_debug("interface %s: passive = %d", ifp->name, | |
1081 | ri->passive); | |
718e3744 | 1082 | } |
1083 | ||
d62a17ae | 1084 | static void rip_passive_interface_apply_all(void) |
718e3744 | 1085 | { |
f4e14fdb | 1086 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 1087 | struct interface *ifp; |
718e3744 | 1088 | |
451fda4f | 1089 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1090 | rip_passive_interface_apply(ifp); |
718e3744 | 1091 | } |
1092 | ||
1093 | /* Passive interface. */ | |
44f2f852 | 1094 | int rip_passive_nondefault_set(const char *ifname) |
718e3744 | 1095 | { |
d62a17ae | 1096 | if (rip_passive_nondefault_lookup(ifname) >= 0) |
44f2f852 RW |
1097 | /* |
1098 | * Don't return an error, this can happen after changing | |
1099 | * 'passive-default'. | |
1100 | */ | |
1101 | return NB_OK; | |
718e3744 | 1102 | |
03c20031 DS |
1103 | vector_set(Vrip_passive_nondefault, |
1104 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); | |
718e3744 | 1105 | |
d62a17ae | 1106 | rip_passive_interface_apply_all(); |
718e3744 | 1107 | |
44f2f852 | 1108 | return NB_OK; |
718e3744 | 1109 | } |
1110 | ||
44f2f852 | 1111 | int rip_passive_nondefault_unset(const char *ifname) |
718e3744 | 1112 | { |
d62a17ae | 1113 | int i; |
1114 | char *str; | |
718e3744 | 1115 | |
d62a17ae | 1116 | i = rip_passive_nondefault_lookup(ifname); |
1117 | if (i < 0) | |
44f2f852 RW |
1118 | /* |
1119 | * Don't return an error, this can happen after changing | |
1120 | * 'passive-default'. | |
1121 | */ | |
1122 | return NB_OK; | |
718e3744 | 1123 | |
d62a17ae | 1124 | str = vector_slot(Vrip_passive_nondefault, i); |
03c20031 | 1125 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 1126 | vector_unset(Vrip_passive_nondefault, i); |
718e3744 | 1127 | |
d62a17ae | 1128 | rip_passive_interface_apply_all(); |
718e3744 | 1129 | |
44f2f852 | 1130 | return NB_OK; |
718e3744 | 1131 | } |
1132 | ||
1133 | /* Free all configured RIP passive-interface settings. */ | |
d62a17ae | 1134 | void rip_passive_nondefault_clean(void) |
718e3744 | 1135 | { |
d62a17ae | 1136 | unsigned int i; |
1137 | char *str; | |
718e3744 | 1138 | |
d62a17ae | 1139 | for (i = 0; i < vector_active(Vrip_passive_nondefault); i++) |
1140 | if ((str = vector_slot(Vrip_passive_nondefault, i)) != NULL) { | |
03c20031 | 1141 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 1142 | vector_slot(Vrip_passive_nondefault, i) = NULL; |
1143 | } | |
1144 | rip_passive_interface_apply_all(); | |
718e3744 | 1145 | } |
6b0655a2 | 1146 | |
718e3744 | 1147 | /* Write rip configuration of each interface. */ |
d62a17ae | 1148 | static int rip_interface_config_write(struct vty *vty) |
1149 | { | |
f4e14fdb | 1150 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 1151 | struct interface *ifp; |
94b117b2 | 1152 | int write = 0; |
d62a17ae | 1153 | |
451fda4f | 1154 | FOR_ALL_INTERFACES (vrf, ifp) { |
94b117b2 | 1155 | struct lyd_node *dnode; |
d62a17ae | 1156 | |
94b117b2 RW |
1157 | dnode = yang_dnode_get( |
1158 | running_config->dnode, | |
1159 | "/frr-interface:lib/interface[name='%s'][vrf='%s']", | |
1160 | ifp->name, vrf->name); | |
1161 | if (dnode == NULL) | |
d62a17ae | 1162 | continue; |
1163 | ||
94b117b2 RW |
1164 | write = 1; |
1165 | nb_cli_show_dnode_cmds(vty, dnode, false); | |
d62a17ae | 1166 | } |
94b117b2 RW |
1167 | |
1168 | return write; | |
d62a17ae | 1169 | } |
1170 | ||
44f2f852 | 1171 | int rip_show_network_config(struct vty *vty) |
d62a17ae | 1172 | { |
1173 | unsigned int i; | |
1174 | char *ifname; | |
1175 | struct route_node *node; | |
1176 | ||
1177 | /* Network type RIP enable interface statement. */ | |
1178 | for (node = route_top(rip_enable_network); node; | |
1179 | node = route_next(node)) | |
1180 | if (node->info) | |
44f2f852 | 1181 | vty_out(vty, " %s/%u\n", |
d62a17ae | 1182 | inet_ntoa(node->p.u.prefix4), |
1183 | node->p.prefixlen); | |
1184 | ||
1185 | /* Interface name RIP enable statement. */ | |
1186 | for (i = 0; i < vector_active(rip_enable_interface); i++) | |
1187 | if ((ifname = vector_slot(rip_enable_interface, i)) != NULL) | |
44f2f852 | 1188 | vty_out(vty, " %s\n", ifname); |
d62a17ae | 1189 | |
1190 | /* RIP neighbors listing. */ | |
1191 | for (node = route_top(rip->neighbor); node; node = route_next(node)) | |
1192 | if (node->info) | |
44f2f852 | 1193 | vty_out(vty, " %s\n", inet_ntoa(node->p.u.prefix4)); |
718e3744 | 1194 | |
d62a17ae | 1195 | return 0; |
1196 | } | |
1197 | ||
1198 | static struct cmd_node interface_node = { | |
9d303b37 | 1199 | INTERFACE_NODE, "%s(config-if)# ", 1, |
718e3744 | 1200 | }; |
1201 | ||
1202 | /* Called when interface structure allocated. */ | |
d62a17ae | 1203 | static int rip_interface_new_hook(struct interface *ifp) |
718e3744 | 1204 | { |
d62a17ae | 1205 | ifp->info = rip_interface_new(); |
1206 | return 0; | |
718e3744 | 1207 | } |
1208 | ||
1209 | /* Called when interface structure deleted. */ | |
d62a17ae | 1210 | static int rip_interface_delete_hook(struct interface *ifp) |
718e3744 | 1211 | { |
72010aca | 1212 | rip_interface_reset(ifp->info); |
d62a17ae | 1213 | XFREE(MTYPE_RIP_INTERFACE, ifp->info); |
1214 | ifp->info = NULL; | |
1215 | return 0; | |
718e3744 | 1216 | } |
1217 | ||
1218 | /* Allocate and initialize interface vector. */ | |
d62a17ae | 1219 | void rip_if_init(void) |
718e3744 | 1220 | { |
d62a17ae | 1221 | /* Default initial size of interface vector. */ |
ce19a04a DL |
1222 | hook_register_prio(if_add, 0, rip_interface_new_hook); |
1223 | hook_register_prio(if_del, 0, rip_interface_delete_hook); | |
d62a17ae | 1224 | |
1225 | /* RIP network init. */ | |
1226 | rip_enable_interface = vector_init(1); | |
1227 | rip_enable_network = route_table_init(); | |
718e3744 | 1228 | |
d62a17ae | 1229 | /* RIP passive interface. */ |
1230 | Vrip_passive_nondefault = vector_init(1); | |
718e3744 | 1231 | |
d62a17ae | 1232 | /* Install interface node. */ |
1233 | install_node(&interface_node, rip_interface_config_write); | |
1234 | if_cmd_init(); | |
718e3744 | 1235 | } |