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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 | void rip_interfaces_reset(void) |
1dec2166 | 535 | { |
f4e14fdb | 536 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 537 | struct interface *ifp; |
718e3744 | 538 | |
451fda4f | 539 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 540 | rip_interface_reset(ifp->info); |
718e3744 | 541 | } |
542 | ||
d62a17ae | 543 | int rip_if_down(struct interface *ifp) |
718e3744 | 544 | { |
d62a17ae | 545 | struct route_node *rp; |
546 | struct rip_info *rinfo; | |
547 | struct rip_interface *ri = NULL; | |
548 | struct list *list = NULL; | |
549 | struct listnode *listnode = NULL, *nextnode = NULL; | |
550 | if (rip) { | |
551 | for (rp = route_top(rip->table); rp; rp = route_next(rp)) | |
552 | if ((list = rp->info) != NULL) | |
553 | for (ALL_LIST_ELEMENTS(list, listnode, nextnode, | |
554 | rinfo)) | |
dd127197 | 555 | if (rinfo->nh.ifindex == ifp->ifindex) |
d62a17ae | 556 | rip_ecmp_delete(rinfo); |
557 | ||
558 | ri = ifp->info; | |
559 | ||
560 | if (ri->running) { | |
561 | if (IS_RIP_DEBUG_EVENT) | |
562 | zlog_debug("turn off %s", ifp->name); | |
563 | ||
564 | /* Leave from multicast group. */ | |
565 | rip_multicast_leave(ifp, rip->sock); | |
566 | ||
567 | ri->running = 0; | |
568 | } | |
569 | } | |
570 | ||
571 | return 0; | |
718e3744 | 572 | } |
573 | ||
574 | /* Needed for stop RIP process. */ | |
d62a17ae | 575 | void rip_if_down_all() |
718e3744 | 576 | { |
f4e14fdb | 577 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 578 | struct interface *ifp; |
718e3744 | 579 | |
451fda4f | 580 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 581 | rip_if_down(ifp); |
718e3744 | 582 | } |
583 | ||
d62a17ae | 584 | static void rip_apply_address_add(struct connected *ifc) |
dc63bfd4 | 585 | { |
d62a17ae | 586 | struct prefix_ipv4 address; |
3f5682c8 | 587 | struct nexthop nh; |
d62a17ae | 588 | struct prefix *p; |
16705130 | 589 | |
d62a17ae | 590 | if (!rip) |
591 | return; | |
16705130 | 592 | |
d62a17ae | 593 | if (!if_is_up(ifc->ifp)) |
594 | return; | |
16705130 | 595 | |
d62a17ae | 596 | p = ifc->address; |
16705130 | 597 | |
d62a17ae | 598 | memset(&address, 0, sizeof(address)); |
3f5682c8 DS |
599 | memset(&nh, 0, sizeof(nh)); |
600 | ||
d62a17ae | 601 | address.family = p->family; |
602 | address.prefix = p->u.prefix4; | |
603 | address.prefixlen = p->prefixlen; | |
604 | apply_mask_ipv4(&address); | |
16705130 | 605 | |
3f5682c8 DS |
606 | nh.ifindex = ifc->ifp->ifindex; |
607 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
608 | ||
d62a17ae | 609 | /* Check if this interface is RIP enabled or not |
610 | or Check if this address's prefix is RIP enabled */ | |
611 | if ((rip_enable_if_lookup(ifc->ifp->name) >= 0) | |
612 | || (rip_enable_network_lookup2(ifc) >= 0)) | |
613 | rip_redistribute_add(ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, | |
3f5682c8 | 614 | &address, &nh, 0, 0, 0); |
16705130 | 615 | } |
616 | ||
d62a17ae | 617 | int rip_interface_address_add(int command, struct zclient *zclient, |
618 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 619 | { |
d62a17ae | 620 | struct connected *ifc; |
621 | struct prefix *p; | |
718e3744 | 622 | |
d62a17ae | 623 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, |
624 | zclient->ibuf, vrf_id); | |
718e3744 | 625 | |
d62a17ae | 626 | if (ifc == NULL) |
627 | return 0; | |
718e3744 | 628 | |
d62a17ae | 629 | p = ifc->address; |
718e3744 | 630 | |
d62a17ae | 631 | if (p->family == AF_INET) { |
632 | if (IS_RIP_DEBUG_ZEBRA) | |
633 | zlog_debug("connected address %s/%d is added", | |
634 | inet_ntoa(p->u.prefix4), p->prefixlen); | |
16705130 | 635 | |
d62a17ae | 636 | rip_enable_apply(ifc->ifp); |
637 | /* Check if this prefix needs to be redistributed */ | |
638 | rip_apply_address_add(ifc); | |
718e3744 | 639 | |
d62a17ae | 640 | hook_call(rip_ifaddr_add, ifc); |
641 | } | |
718e3744 | 642 | |
d62a17ae | 643 | return 0; |
718e3744 | 644 | } |
645 | ||
d62a17ae | 646 | static void rip_apply_address_del(struct connected *ifc) |
647 | { | |
648 | struct prefix_ipv4 address; | |
649 | struct prefix *p; | |
16705130 | 650 | |
d62a17ae | 651 | if (!rip) |
652 | return; | |
16705130 | 653 | |
d62a17ae | 654 | if (!if_is_up(ifc->ifp)) |
655 | return; | |
16705130 | 656 | |
d62a17ae | 657 | p = ifc->address; |
16705130 | 658 | |
d62a17ae | 659 | memset(&address, 0, sizeof(address)); |
660 | address.family = p->family; | |
661 | address.prefix = p->u.prefix4; | |
662 | address.prefixlen = p->prefixlen; | |
663 | apply_mask_ipv4(&address); | |
16705130 | 664 | |
d62a17ae | 665 | rip_redistribute_delete(ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, |
666 | &address, ifc->ifp->ifindex); | |
16705130 | 667 | } |
668 | ||
d62a17ae | 669 | int rip_interface_address_delete(int command, struct zclient *zclient, |
670 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 671 | { |
d62a17ae | 672 | struct connected *ifc; |
673 | struct prefix *p; | |
718e3744 | 674 | |
d62a17ae | 675 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, |
676 | zclient->ibuf, vrf_id); | |
718e3744 | 677 | |
d62a17ae | 678 | if (ifc) { |
679 | p = ifc->address; | |
680 | if (p->family == AF_INET) { | |
681 | if (IS_RIP_DEBUG_ZEBRA) | |
682 | zlog_debug("connected address %s/%d is deleted", | |
683 | inet_ntoa(p->u.prefix4), | |
684 | p->prefixlen); | |
16705130 | 685 | |
d62a17ae | 686 | hook_call(rip_ifaddr_del, ifc); |
718e3744 | 687 | |
d62a17ae | 688 | /* Chech wether this prefix needs to be removed */ |
689 | rip_apply_address_del(ifc); | |
690 | } | |
718e3744 | 691 | |
d62a17ae | 692 | connected_free(ifc); |
693 | } | |
718e3744 | 694 | |
d62a17ae | 695 | return 0; |
718e3744 | 696 | } |
6b0655a2 | 697 | |
718e3744 | 698 | /* Check interface is enabled by network statement. */ |
16705130 | 699 | /* Check wether the interface has at least a connected prefix that |
700 | * is within the ripng_enable_network table. */ | |
d62a17ae | 701 | static int rip_enable_network_lookup_if(struct interface *ifp) |
702 | { | |
703 | struct listnode *node, *nnode; | |
704 | struct connected *connected; | |
705 | struct prefix_ipv4 address; | |
706 | ||
707 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
708 | struct prefix *p; | |
dc7204b7 | 709 | struct route_node *n; |
d62a17ae | 710 | |
711 | p = connected->address; | |
712 | ||
713 | if (p->family == AF_INET) { | |
714 | address.family = AF_INET; | |
715 | address.prefix = p->u.prefix4; | |
716 | address.prefixlen = IPV4_MAX_BITLEN; | |
717 | ||
dc7204b7 A |
718 | n = route_node_match(rip_enable_network, |
719 | (struct prefix *)&address); | |
720 | if (n) { | |
721 | route_unlock_node(n); | |
d62a17ae | 722 | return 1; |
723 | } | |
724 | } | |
725 | } | |
726 | return -1; | |
718e3744 | 727 | } |
728 | ||
16705130 | 729 | /* Check wether connected is within the ripng_enable_network table. */ |
d62a17ae | 730 | int rip_enable_network_lookup2(struct connected *connected) |
16705130 | 731 | { |
d62a17ae | 732 | struct prefix_ipv4 address; |
733 | struct prefix *p; | |
16705130 | 734 | |
d62a17ae | 735 | p = connected->address; |
16705130 | 736 | |
d62a17ae | 737 | if (p->family == AF_INET) { |
738 | struct route_node *node; | |
16705130 | 739 | |
d62a17ae | 740 | address.family = p->family; |
741 | address.prefix = p->u.prefix4; | |
742 | address.prefixlen = IPV4_MAX_BITLEN; | |
16705130 | 743 | |
d62a17ae | 744 | /* LPM on p->family, p->u.prefix4/IPV4_MAX_BITLEN within |
745 | * rip_enable_network */ | |
746 | node = route_node_match(rip_enable_network, | |
747 | (struct prefix *)&address); | |
16705130 | 748 | |
d62a17ae | 749 | if (node) { |
750 | route_unlock_node(node); | |
751 | return 1; | |
752 | } | |
753 | } | |
16705130 | 754 | |
d62a17ae | 755 | return -1; |
16705130 | 756 | } |
718e3744 | 757 | /* Add RIP enable network. */ |
3d7a1be8 | 758 | int rip_enable_network_add(struct prefix *p) |
718e3744 | 759 | { |
d62a17ae | 760 | struct route_node *node; |
718e3744 | 761 | |
d62a17ae | 762 | node = route_node_get(rip_enable_network, p); |
718e3744 | 763 | |
d62a17ae | 764 | if (node->info) { |
765 | route_unlock_node(node); | |
3d7a1be8 | 766 | return NB_ERR_INCONSISTENCY; |
d62a17ae | 767 | } else |
768 | node->info = (void *)1; | |
718e3744 | 769 | |
d62a17ae | 770 | /* XXX: One should find a better solution than a generic one */ |
771 | rip_enable_apply_all(); | |
16705130 | 772 | |
3d7a1be8 | 773 | return NB_OK; |
718e3744 | 774 | } |
775 | ||
776 | /* Delete RIP enable network. */ | |
3d7a1be8 | 777 | int rip_enable_network_delete(struct prefix *p) |
718e3744 | 778 | { |
d62a17ae | 779 | struct route_node *node; |
718e3744 | 780 | |
d62a17ae | 781 | node = route_node_lookup(rip_enable_network, p); |
782 | if (node) { | |
783 | node->info = NULL; | |
718e3744 | 784 | |
d62a17ae | 785 | /* Unlock info lock. */ |
786 | route_unlock_node(node); | |
718e3744 | 787 | |
d62a17ae | 788 | /* Unlock lookup lock. */ |
789 | route_unlock_node(node); | |
718e3744 | 790 | |
d62a17ae | 791 | /* XXX: One should find a better solution than a generic one */ |
792 | rip_enable_apply_all(); | |
16705130 | 793 | |
3d7a1be8 | 794 | return NB_OK; |
d62a17ae | 795 | } |
3d7a1be8 RW |
796 | |
797 | return NB_ERR_INCONSISTENCY; | |
718e3744 | 798 | } |
799 | ||
800 | /* Check interface is enabled by ifname statement. */ | |
d62a17ae | 801 | static int rip_enable_if_lookup(const char *ifname) |
718e3744 | 802 | { |
d62a17ae | 803 | unsigned int i; |
804 | char *str; | |
718e3744 | 805 | |
d62a17ae | 806 | for (i = 0; i < vector_active(rip_enable_interface); i++) |
807 | if ((str = vector_slot(rip_enable_interface, i)) != NULL) | |
808 | if (strcmp(str, ifname) == 0) | |
809 | return i; | |
810 | return -1; | |
718e3744 | 811 | } |
812 | ||
813 | /* Add interface to rip_enable_if. */ | |
3d7a1be8 | 814 | int rip_enable_if_add(const char *ifname) |
718e3744 | 815 | { |
d62a17ae | 816 | int ret; |
718e3744 | 817 | |
d62a17ae | 818 | ret = rip_enable_if_lookup(ifname); |
819 | if (ret >= 0) | |
3d7a1be8 | 820 | return NB_ERR_INCONSISTENCY; |
718e3744 | 821 | |
03c20031 DS |
822 | vector_set(rip_enable_interface, |
823 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); | |
718e3744 | 824 | |
d62a17ae | 825 | rip_enable_apply_all(); /* TODOVJ */ |
16705130 | 826 | |
3d7a1be8 | 827 | return NB_OK; |
718e3744 | 828 | } |
829 | ||
830 | /* Delete interface from rip_enable_if. */ | |
3d7a1be8 | 831 | int rip_enable_if_delete(const char *ifname) |
718e3744 | 832 | { |
d62a17ae | 833 | int index; |
834 | char *str; | |
718e3744 | 835 | |
d62a17ae | 836 | index = rip_enable_if_lookup(ifname); |
837 | if (index < 0) | |
3d7a1be8 | 838 | return NB_ERR_INCONSISTENCY; |
718e3744 | 839 | |
d62a17ae | 840 | str = vector_slot(rip_enable_interface, index); |
03c20031 | 841 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 842 | vector_unset(rip_enable_interface, index); |
718e3744 | 843 | |
d62a17ae | 844 | rip_enable_apply_all(); /* TODOVJ */ |
16705130 | 845 | |
3d7a1be8 | 846 | return NB_OK; |
718e3744 | 847 | } |
848 | ||
849 | /* Join to multicast group and send request to the interface. */ | |
d62a17ae | 850 | static int rip_interface_wakeup(struct thread *t) |
718e3744 | 851 | { |
d62a17ae | 852 | struct interface *ifp; |
853 | struct rip_interface *ri; | |
718e3744 | 854 | |
d62a17ae | 855 | /* Get interface. */ |
856 | ifp = THREAD_ARG(t); | |
718e3744 | 857 | |
d62a17ae | 858 | ri = ifp->info; |
859 | ri->t_wakeup = NULL; | |
718e3744 | 860 | |
d62a17ae | 861 | /* Join to multicast group. */ |
862 | if (rip_multicast_join(ifp, rip->sock) < 0) { | |
450971aa | 863 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
864 | "multicast join failed, interface %s not running", |
865 | ifp->name); | |
d62a17ae | 866 | return 0; |
867 | } | |
718e3744 | 868 | |
d62a17ae | 869 | /* Set running flag. */ |
870 | ri->running = 1; | |
871 | ||
872 | /* Send RIP request to the interface. */ | |
873 | rip_request_interface(ifp); | |
874 | ||
875 | return 0; | |
876 | } | |
877 | ||
878 | static void rip_connect_set(struct interface *ifp, int set) | |
879 | { | |
880 | struct listnode *node, *nnode; | |
881 | struct connected *connected; | |
882 | struct prefix_ipv4 address; | |
3f5682c8 DS |
883 | struct nexthop nh; |
884 | ||
885 | memset(&nh, 0, sizeof(nh)); | |
d62a17ae | 886 | |
887 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
888 | struct prefix *p; | |
889 | p = connected->address; | |
890 | ||
891 | if (p->family != AF_INET) | |
892 | continue; | |
893 | ||
894 | address.family = AF_INET; | |
895 | address.prefix = p->u.prefix4; | |
896 | address.prefixlen = p->prefixlen; | |
897 | apply_mask_ipv4(&address); | |
898 | ||
3f5682c8 DS |
899 | nh.ifindex = connected->ifp->ifindex; |
900 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
d62a17ae | 901 | if (set) { |
902 | /* Check once more wether this prefix is within a | |
903 | * "network IF_OR_PREF" one */ | |
904 | if ((rip_enable_if_lookup(connected->ifp->name) >= 0) | |
905 | || (rip_enable_network_lookup2(connected) >= 0)) | |
996c9314 LB |
906 | rip_redistribute_add(ZEBRA_ROUTE_CONNECT, |
907 | RIP_ROUTE_INTERFACE, | |
908 | &address, &nh, 0, 0, 0); | |
d62a17ae | 909 | } else { |
910 | rip_redistribute_delete(ZEBRA_ROUTE_CONNECT, | |
911 | RIP_ROUTE_INTERFACE, &address, | |
912 | connected->ifp->ifindex); | |
913 | if (rip_redistribute_check(ZEBRA_ROUTE_CONNECT)) | |
996c9314 LB |
914 | rip_redistribute_add(ZEBRA_ROUTE_CONNECT, |
915 | RIP_ROUTE_REDISTRIBUTE, | |
916 | &address, &nh, 0, 0, 0); | |
d62a17ae | 917 | } |
918 | } | |
718e3744 | 919 | } |
920 | ||
921 | /* Update interface status. */ | |
d62a17ae | 922 | void rip_enable_apply(struct interface *ifp) |
718e3744 | 923 | { |
d62a17ae | 924 | int ret; |
925 | struct rip_interface *ri = NULL; | |
718e3744 | 926 | |
d62a17ae | 927 | /* Check interface. */ |
928 | if (!if_is_operative(ifp)) | |
929 | return; | |
718e3744 | 930 | |
d62a17ae | 931 | ri = ifp->info; |
932 | ||
933 | /* Check network configuration. */ | |
934 | ret = rip_enable_network_lookup_if(ifp); | |
935 | ||
936 | /* If the interface is matched. */ | |
937 | if (ret > 0) | |
938 | ri->enable_network = 1; | |
939 | else | |
940 | ri->enable_network = 0; | |
941 | ||
942 | /* Check interface name configuration. */ | |
943 | ret = rip_enable_if_lookup(ifp->name); | |
944 | if (ret >= 0) | |
945 | ri->enable_interface = 1; | |
946 | else | |
947 | ri->enable_interface = 0; | |
718e3744 | 948 | |
d62a17ae | 949 | /* any interface MUST have an IPv4 address */ |
950 | if (!rip_if_ipv4_address_check(ifp)) { | |
951 | ri->enable_network = 0; | |
952 | ri->enable_interface = 0; | |
718e3744 | 953 | } |
718e3744 | 954 | |
d62a17ae | 955 | /* Update running status of the interface. */ |
956 | if (ri->enable_network || ri->enable_interface) { | |
2e37ad7f RW |
957 | if (IS_RIP_DEBUG_EVENT) |
958 | zlog_debug("turn on %s", ifp->name); | |
959 | ||
960 | /* Add interface wake up thread. */ | |
961 | thread_add_timer(master, rip_interface_wakeup, ifp, 1, | |
962 | &ri->t_wakeup); | |
963 | rip_connect_set(ifp, 1); | |
964 | } else if (ri->running) { | |
965 | /* Might as well clean up the route table as well | |
966 | * rip_if_down sets to 0 ri->running, and displays "turn | |
967 | *off %s" | |
968 | **/ | |
969 | rip_if_down(ifp); | |
d62a17ae | 970 | |
2e37ad7f | 971 | rip_connect_set(ifp, 0); |
718e3744 | 972 | } |
718e3744 | 973 | } |
974 | ||
975 | /* Apply network configuration to all interface. */ | |
d62a17ae | 976 | void rip_enable_apply_all() |
718e3744 | 977 | { |
f4e14fdb | 978 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 979 | struct interface *ifp; |
718e3744 | 980 | |
d62a17ae | 981 | /* Check each interface. */ |
451fda4f | 982 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 983 | rip_enable_apply(ifp); |
718e3744 | 984 | } |
985 | ||
d62a17ae | 986 | int rip_neighbor_lookup(struct sockaddr_in *from) |
718e3744 | 987 | { |
d62a17ae | 988 | struct prefix_ipv4 p; |
989 | struct route_node *node; | |
718e3744 | 990 | |
d62a17ae | 991 | memset(&p, 0, sizeof(struct prefix_ipv4)); |
992 | p.family = AF_INET; | |
993 | p.prefix = from->sin_addr; | |
994 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 995 | |
d62a17ae | 996 | node = route_node_lookup(rip->neighbor, (struct prefix *)&p); |
997 | if (node) { | |
998 | route_unlock_node(node); | |
999 | return 1; | |
1000 | } | |
1001 | return 0; | |
718e3744 | 1002 | } |
1003 | ||
1004 | /* Add new RIP neighbor to the neighbor tree. */ | |
f0ab22fb | 1005 | int rip_neighbor_add(struct prefix_ipv4 *p) |
718e3744 | 1006 | { |
d62a17ae | 1007 | struct route_node *node; |
718e3744 | 1008 | |
d62a17ae | 1009 | node = route_node_get(rip->neighbor, (struct prefix *)p); |
718e3744 | 1010 | |
d62a17ae | 1011 | if (node->info) |
f0ab22fb | 1012 | return NB_ERR_INCONSISTENCY; |
718e3744 | 1013 | |
d62a17ae | 1014 | node->info = rip->neighbor; |
718e3744 | 1015 | |
f0ab22fb | 1016 | return NB_OK; |
718e3744 | 1017 | } |
1018 | ||
1019 | /* Delete RIP neighbor from the neighbor tree. */ | |
f0ab22fb | 1020 | int rip_neighbor_delete(struct prefix_ipv4 *p) |
718e3744 | 1021 | { |
d62a17ae | 1022 | struct route_node *node; |
718e3744 | 1023 | |
d62a17ae | 1024 | /* Lock for look up. */ |
1025 | node = route_node_lookup(rip->neighbor, (struct prefix *)p); | |
1026 | if (!node) | |
f0ab22fb | 1027 | return NB_ERR_INCONSISTENCY; |
718e3744 | 1028 | |
d62a17ae | 1029 | node->info = NULL; |
718e3744 | 1030 | |
d62a17ae | 1031 | /* Unlock lookup lock. */ |
1032 | route_unlock_node(node); | |
718e3744 | 1033 | |
d62a17ae | 1034 | /* Unlock real neighbor information lock. */ |
1035 | route_unlock_node(node); | |
1036 | ||
f0ab22fb | 1037 | return NB_OK; |
718e3744 | 1038 | } |
1039 | ||
1040 | /* Clear all network and neighbor configuration. */ | |
d62a17ae | 1041 | void rip_clean_network() |
1042 | { | |
1043 | unsigned int i; | |
1044 | char *str; | |
1045 | struct route_node *rn; | |
1046 | ||
1047 | /* rip_enable_network. */ | |
1048 | for (rn = route_top(rip_enable_network); rn; rn = route_next(rn)) | |
1049 | if (rn->info) { | |
1050 | rn->info = NULL; | |
1051 | route_unlock_node(rn); | |
1052 | } | |
1053 | ||
1054 | /* rip_enable_interface. */ | |
1055 | for (i = 0; i < vector_active(rip_enable_interface); i++) | |
1056 | if ((str = vector_slot(rip_enable_interface, i)) != NULL) { | |
03c20031 | 1057 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 1058 | vector_slot(rip_enable_interface, i) = NULL; |
1059 | } | |
718e3744 | 1060 | } |
6b0655a2 | 1061 | |
718e3744 | 1062 | /* Utility function for looking up passive interface settings. */ |
d62a17ae | 1063 | static int rip_passive_nondefault_lookup(const char *ifname) |
718e3744 | 1064 | { |
d62a17ae | 1065 | unsigned int i; |
1066 | char *str; | |
718e3744 | 1067 | |
d62a17ae | 1068 | for (i = 0; i < vector_active(Vrip_passive_nondefault); i++) |
1069 | if ((str = vector_slot(Vrip_passive_nondefault, i)) != NULL) | |
1070 | if (strcmp(str, ifname) == 0) | |
1071 | return i; | |
1072 | return -1; | |
718e3744 | 1073 | } |
1074 | ||
d62a17ae | 1075 | void rip_passive_interface_apply(struct interface *ifp) |
718e3744 | 1076 | { |
d62a17ae | 1077 | struct rip_interface *ri; |
718e3744 | 1078 | |
44f2f852 RW |
1079 | if (rip == NULL) |
1080 | return; | |
1081 | ||
d62a17ae | 1082 | ri = ifp->info; |
718e3744 | 1083 | |
d62a17ae | 1084 | ri->passive = ((rip_passive_nondefault_lookup(ifp->name) < 0) |
44f2f852 RW |
1085 | ? rip->passive_default |
1086 | : !rip->passive_default); | |
4aaff3f8 | 1087 | |
d62a17ae | 1088 | if (IS_RIP_DEBUG_ZEBRA) |
1089 | zlog_debug("interface %s: passive = %d", ifp->name, | |
1090 | ri->passive); | |
718e3744 | 1091 | } |
1092 | ||
d62a17ae | 1093 | static void rip_passive_interface_apply_all(void) |
718e3744 | 1094 | { |
f4e14fdb | 1095 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 1096 | struct interface *ifp; |
718e3744 | 1097 | |
451fda4f | 1098 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1099 | rip_passive_interface_apply(ifp); |
718e3744 | 1100 | } |
1101 | ||
1102 | /* Passive interface. */ | |
44f2f852 | 1103 | int rip_passive_nondefault_set(const char *ifname) |
718e3744 | 1104 | { |
d62a17ae | 1105 | if (rip_passive_nondefault_lookup(ifname) >= 0) |
44f2f852 RW |
1106 | /* |
1107 | * Don't return an error, this can happen after changing | |
1108 | * 'passive-default'. | |
1109 | */ | |
1110 | return NB_OK; | |
718e3744 | 1111 | |
03c20031 DS |
1112 | vector_set(Vrip_passive_nondefault, |
1113 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); | |
718e3744 | 1114 | |
d62a17ae | 1115 | rip_passive_interface_apply_all(); |
718e3744 | 1116 | |
44f2f852 | 1117 | return NB_OK; |
718e3744 | 1118 | } |
1119 | ||
44f2f852 | 1120 | int rip_passive_nondefault_unset(const char *ifname) |
718e3744 | 1121 | { |
d62a17ae | 1122 | int i; |
1123 | char *str; | |
718e3744 | 1124 | |
d62a17ae | 1125 | i = rip_passive_nondefault_lookup(ifname); |
1126 | if (i < 0) | |
44f2f852 RW |
1127 | /* |
1128 | * Don't return an error, this can happen after changing | |
1129 | * 'passive-default'. | |
1130 | */ | |
1131 | return NB_OK; | |
718e3744 | 1132 | |
d62a17ae | 1133 | str = vector_slot(Vrip_passive_nondefault, i); |
03c20031 | 1134 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 1135 | vector_unset(Vrip_passive_nondefault, i); |
718e3744 | 1136 | |
d62a17ae | 1137 | rip_passive_interface_apply_all(); |
718e3744 | 1138 | |
44f2f852 | 1139 | return NB_OK; |
718e3744 | 1140 | } |
1141 | ||
1142 | /* Free all configured RIP passive-interface settings. */ | |
d62a17ae | 1143 | void rip_passive_nondefault_clean(void) |
718e3744 | 1144 | { |
d62a17ae | 1145 | unsigned int i; |
1146 | char *str; | |
718e3744 | 1147 | |
d62a17ae | 1148 | for (i = 0; i < vector_active(Vrip_passive_nondefault); i++) |
1149 | if ((str = vector_slot(Vrip_passive_nondefault, i)) != NULL) { | |
03c20031 | 1150 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 1151 | vector_slot(Vrip_passive_nondefault, i) = NULL; |
1152 | } | |
1153 | rip_passive_interface_apply_all(); | |
718e3744 | 1154 | } |
6b0655a2 | 1155 | |
718e3744 | 1156 | /* Write rip configuration of each interface. */ |
d62a17ae | 1157 | static int rip_interface_config_write(struct vty *vty) |
1158 | { | |
f4e14fdb | 1159 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 1160 | struct interface *ifp; |
94b117b2 | 1161 | int write = 0; |
d62a17ae | 1162 | |
451fda4f | 1163 | FOR_ALL_INTERFACES (vrf, ifp) { |
94b117b2 | 1164 | struct lyd_node *dnode; |
d62a17ae | 1165 | |
94b117b2 RW |
1166 | dnode = yang_dnode_get( |
1167 | running_config->dnode, | |
1168 | "/frr-interface:lib/interface[name='%s'][vrf='%s']", | |
1169 | ifp->name, vrf->name); | |
1170 | if (dnode == NULL) | |
d62a17ae | 1171 | continue; |
1172 | ||
94b117b2 RW |
1173 | write = 1; |
1174 | nb_cli_show_dnode_cmds(vty, dnode, false); | |
d62a17ae | 1175 | } |
94b117b2 RW |
1176 | |
1177 | return write; | |
d62a17ae | 1178 | } |
1179 | ||
44f2f852 | 1180 | int rip_show_network_config(struct vty *vty) |
d62a17ae | 1181 | { |
1182 | unsigned int i; | |
1183 | char *ifname; | |
1184 | struct route_node *node; | |
1185 | ||
1186 | /* Network type RIP enable interface statement. */ | |
1187 | for (node = route_top(rip_enable_network); node; | |
1188 | node = route_next(node)) | |
1189 | if (node->info) | |
44f2f852 | 1190 | vty_out(vty, " %s/%u\n", |
d62a17ae | 1191 | inet_ntoa(node->p.u.prefix4), |
1192 | node->p.prefixlen); | |
1193 | ||
1194 | /* Interface name RIP enable statement. */ | |
1195 | for (i = 0; i < vector_active(rip_enable_interface); i++) | |
1196 | if ((ifname = vector_slot(rip_enable_interface, i)) != NULL) | |
44f2f852 | 1197 | vty_out(vty, " %s\n", ifname); |
d62a17ae | 1198 | |
1199 | /* RIP neighbors listing. */ | |
1200 | for (node = route_top(rip->neighbor); node; node = route_next(node)) | |
1201 | if (node->info) | |
44f2f852 | 1202 | vty_out(vty, " %s\n", inet_ntoa(node->p.u.prefix4)); |
718e3744 | 1203 | |
d62a17ae | 1204 | return 0; |
1205 | } | |
1206 | ||
1207 | static struct cmd_node interface_node = { | |
9d303b37 | 1208 | INTERFACE_NODE, "%s(config-if)# ", 1, |
718e3744 | 1209 | }; |
1210 | ||
1211 | /* Called when interface structure allocated. */ | |
d62a17ae | 1212 | static int rip_interface_new_hook(struct interface *ifp) |
718e3744 | 1213 | { |
d62a17ae | 1214 | ifp->info = rip_interface_new(); |
1215 | return 0; | |
718e3744 | 1216 | } |
1217 | ||
1218 | /* Called when interface structure deleted. */ | |
d62a17ae | 1219 | static int rip_interface_delete_hook(struct interface *ifp) |
718e3744 | 1220 | { |
72010aca | 1221 | rip_interface_reset(ifp->info); |
d62a17ae | 1222 | XFREE(MTYPE_RIP_INTERFACE, ifp->info); |
1223 | ifp->info = NULL; | |
1224 | return 0; | |
718e3744 | 1225 | } |
1226 | ||
1227 | /* Allocate and initialize interface vector. */ | |
d62a17ae | 1228 | void rip_if_init(void) |
718e3744 | 1229 | { |
d62a17ae | 1230 | /* Default initial size of interface vector. */ |
ce19a04a DL |
1231 | hook_register_prio(if_add, 0, rip_interface_new_hook); |
1232 | hook_register_prio(if_del, 0, rip_interface_delete_hook); | |
d62a17ae | 1233 | |
1234 | /* RIP network init. */ | |
1235 | rip_enable_interface = vector_init(1); | |
1236 | rip_enable_network = route_table_init(); | |
718e3744 | 1237 | |
d62a17ae | 1238 | /* RIP passive interface. */ |
1239 | Vrip_passive_nondefault = vector_init(1); | |
718e3744 | 1240 | |
d62a17ae | 1241 | /* Install interface node. */ |
1242 | install_node(&interface_node, rip_interface_config_write); | |
1243 | if_cmd_init(); | |
718e3744 | 1244 | } |