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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)) { | |
161 | if (connected->address->family == AF_INET) { | |
162 | memset(&to, 0, sizeof(struct sockaddr_in)); | |
163 | to.sin_port = htons(RIP_PORT_DEFAULT); | |
164 | if (connected->destination) | |
165 | /* use specified broadcast or peer | |
166 | * destination addr */ | |
167 | to.sin_addr = connected->destination->u | |
168 | .prefix4; | |
169 | else if (connected->address->prefixlen | |
170 | < IPV4_MAX_PREFIXLEN) | |
171 | /* calculate the appropriate broadcast | |
172 | * address */ | |
173 | to.sin_addr | |
174 | .s_addr = ipv4_broadcast_addr( | |
175 | connected->address->u.prefix4 | |
176 | .s_addr, | |
177 | connected->address->prefixlen); | |
178 | else | |
179 | /* do not know where to send the packet | |
180 | */ | |
181 | continue; | |
182 | ||
183 | if (IS_RIP_DEBUG_EVENT) | |
184 | zlog_debug("SEND request to %s", | |
185 | inet_ntoa(to.sin_addr)); | |
186 | ||
187 | rip_request_send(&to, ifp, version, connected); | |
188 | } | |
189 | } | |
718e3744 | 190 | } |
718e3744 | 191 | } |
192 | ||
193 | /* This will be executed when interface goes up. */ | |
d62a17ae | 194 | static void rip_request_interface(struct interface *ifp) |
718e3744 | 195 | { |
d62a17ae | 196 | struct rip_interface *ri; |
718e3744 | 197 | |
d62a17ae | 198 | /* In default ripd doesn't send RIP_REQUEST to the loopback interface. |
199 | */ | |
200 | if (if_is_loopback(ifp)) | |
201 | return; | |
718e3744 | 202 | |
d62a17ae | 203 | /* If interface is down, don't send RIP packet. */ |
204 | if (!if_is_operative(ifp)) | |
205 | return; | |
718e3744 | 206 | |
d62a17ae | 207 | /* Fetch RIP interface information. */ |
208 | ri = ifp->info; | |
718e3744 | 209 | |
d62a17ae | 210 | /* If there is no version configuration in the interface, |
211 | use rip's version setting. */ | |
212 | { | |
213 | int vsend = ((ri->ri_send == RI_RIP_UNSPEC) ? rip->version_send | |
214 | : ri->ri_send); | |
215 | if (vsend & RIPv1) | |
216 | rip_request_interface_send(ifp, RIPv1); | |
217 | if (vsend & RIPv2) | |
218 | rip_request_interface_send(ifp, RIPv2); | |
219 | } | |
718e3744 | 220 | } |
221 | ||
2c239705 | 222 | #if 0 |
718e3744 | 223 | /* Send RIP request to the neighbor. */ |
dc63bfd4 | 224 | static void |
718e3744 | 225 | rip_request_neighbor (struct in_addr addr) |
226 | { | |
227 | struct sockaddr_in to; | |
228 | ||
229 | memset (&to, 0, sizeof (struct sockaddr_in)); | |
230 | to.sin_port = htons (RIP_PORT_DEFAULT); | |
231 | to.sin_addr = addr; | |
232 | ||
931cd54d | 233 | rip_request_send (&to, NULL, rip->version_send, NULL); |
718e3744 | 234 | } |
235 | ||
236 | /* Request routes at all interfaces. */ | |
dc63bfd4 | 237 | static void |
238 | rip_request_neighbor_all (void) | |
718e3744 | 239 | { |
240 | struct route_node *rp; | |
241 | ||
242 | if (! rip) | |
243 | return; | |
244 | ||
245 | if (IS_RIP_DEBUG_EVENT) | |
5d6c3779 | 246 | zlog_debug ("request to the all neighbor"); |
718e3744 | 247 | |
248 | /* Send request to all neighbor. */ | |
249 | for (rp = route_top (rip->neighbor); rp; rp = route_next (rp)) | |
250 | if (rp->info) | |
251 | rip_request_neighbor (rp->p.u.prefix4); | |
252 | } | |
2c239705 | 253 | #endif |
718e3744 | 254 | |
255 | /* Multicast packet receive socket. */ | |
d62a17ae | 256 | static int rip_multicast_join(struct interface *ifp, int sock) |
718e3744 | 257 | { |
d62a17ae | 258 | struct listnode *cnode; |
259 | struct connected *ifc; | |
718e3744 | 260 | |
d62a17ae | 261 | if (if_is_operative(ifp) && if_is_multicast(ifp)) { |
262 | if (IS_RIP_DEBUG_EVENT) | |
263 | zlog_debug("multicast join at %s", ifp->name); | |
718e3744 | 264 | |
d62a17ae | 265 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, ifc)) { |
266 | struct prefix_ipv4 *p; | |
267 | struct in_addr group; | |
268 | ||
269 | p = (struct prefix_ipv4 *)ifc->address; | |
270 | ||
271 | if (p->family != AF_INET) | |
272 | continue; | |
273 | ||
274 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
275 | if (ipv4_multicast_join(sock, group, p->prefix, | |
276 | ifp->ifindex) | |
277 | < 0) | |
278 | return -1; | |
279 | else | |
280 | return 0; | |
281 | } | |
718e3744 | 282 | } |
d62a17ae | 283 | return 0; |
718e3744 | 284 | } |
285 | ||
286 | /* Leave from multicast group. */ | |
d62a17ae | 287 | static void rip_multicast_leave(struct interface *ifp, int sock) |
718e3744 | 288 | { |
d62a17ae | 289 | struct listnode *cnode; |
290 | struct connected *connected; | |
718e3744 | 291 | |
d62a17ae | 292 | if (if_is_up(ifp) && if_is_multicast(ifp)) { |
293 | if (IS_RIP_DEBUG_EVENT) | |
294 | zlog_debug("multicast leave from %s", ifp->name); | |
718e3744 | 295 | |
d62a17ae | 296 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
297 | struct prefix_ipv4 *p; | |
298 | struct in_addr group; | |
299 | ||
300 | p = (struct prefix_ipv4 *)connected->address; | |
301 | ||
302 | if (p->family != AF_INET) | |
303 | continue; | |
304 | ||
305 | group.s_addr = htonl(INADDR_RIP_GROUP); | |
306 | if (ipv4_multicast_leave(sock, group, p->prefix, | |
307 | ifp->ifindex) | |
308 | == 0) | |
309 | return; | |
310 | } | |
311 | } | |
718e3744 | 312 | } |
313 | ||
314 | /* Is there and address on interface that I could use ? */ | |
d62a17ae | 315 | static int rip_if_ipv4_address_check(struct interface *ifp) |
718e3744 | 316 | { |
d62a17ae | 317 | struct listnode *nn; |
318 | struct connected *connected; | |
319 | int count = 0; | |
718e3744 | 320 | |
d62a17ae | 321 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, nn, connected)) { |
322 | struct prefix *p; | |
718e3744 | 323 | |
d62a17ae | 324 | p = connected->address; |
325 | ||
326 | if (p->family == AF_INET) | |
327 | count++; | |
328 | } | |
718e3744 | 329 | |
d62a17ae | 330 | return count; |
718e3744 | 331 | } |
d62a17ae | 332 | |
31a476c7 | 333 | |
334 | /* Does this address belongs to me ? */ | |
d62a17ae | 335 | int if_check_address(struct in_addr addr) |
336 | { | |
f4e14fdb | 337 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 338 | struct interface *ifp; |
31a476c7 | 339 | |
451fda4f | 340 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 341 | struct listnode *cnode; |
342 | struct connected *connected; | |
31a476c7 | 343 | |
d62a17ae | 344 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
345 | struct prefix_ipv4 *p; | |
31a476c7 | 346 | |
d62a17ae | 347 | p = (struct prefix_ipv4 *)connected->address; |
348 | ||
349 | if (p->family != AF_INET) | |
350 | continue; | |
351 | ||
352 | if (IPV4_ADDR_CMP(&p->prefix, &addr) == 0) | |
353 | return 1; | |
354 | } | |
31a476c7 | 355 | } |
d62a17ae | 356 | return 0; |
31a476c7 | 357 | } |
358 | ||
718e3744 | 359 | /* Inteface link down message processing. */ |
d62a17ae | 360 | int rip_interface_down(int command, struct zclient *zclient, |
361 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 362 | { |
d62a17ae | 363 | struct interface *ifp; |
364 | struct stream *s; | |
718e3744 | 365 | |
d62a17ae | 366 | s = zclient->ibuf; |
718e3744 | 367 | |
d62a17ae | 368 | /* zebra_interface_state_read() updates interface structure in |
369 | iflist. */ | |
370 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 371 | |
d62a17ae | 372 | if (ifp == NULL) |
373 | return 0; | |
718e3744 | 374 | |
d62a17ae | 375 | rip_if_down(ifp); |
718e3744 | 376 | |
d62a17ae | 377 | if (IS_RIP_DEBUG_ZEBRA) |
378 | zlog_debug( | |
379 | "interface %s index %d flags %llx metric %d mtu %d is down", | |
380 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
381 | ifp->metric, ifp->mtu); | |
382 | ||
383 | return 0; | |
718e3744 | 384 | } |
385 | ||
386 | /* Inteface link up message processing */ | |
d62a17ae | 387 | int rip_interface_up(int command, struct zclient *zclient, zebra_size_t length, |
388 | vrf_id_t vrf_id) | |
718e3744 | 389 | { |
d62a17ae | 390 | struct interface *ifp; |
391 | ||
392 | /* zebra_interface_state_read () updates interface structure in | |
393 | iflist. */ | |
394 | ifp = zebra_interface_state_read(zclient->ibuf, vrf_id); | |
718e3744 | 395 | |
d62a17ae | 396 | if (ifp == NULL) |
397 | return 0; | |
718e3744 | 398 | |
d62a17ae | 399 | if (IS_RIP_DEBUG_ZEBRA) |
400 | zlog_debug( | |
401 | "interface %s index %d flags %#llx metric %d mtu %d is up", | |
402 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
403 | ifp->metric, ifp->mtu); | |
718e3744 | 404 | |
d62a17ae | 405 | /* Check if this interface is RIP enabled or not.*/ |
406 | rip_enable_apply(ifp); | |
718e3744 | 407 | |
d62a17ae | 408 | /* Check for a passive interface */ |
409 | rip_passive_interface_apply(ifp); | |
718e3744 | 410 | |
d62a17ae | 411 | /* Apply distribute list to the all interface. */ |
412 | rip_distribute_update_interface(ifp); | |
718e3744 | 413 | |
d62a17ae | 414 | return 0; |
718e3744 | 415 | } |
416 | ||
417 | /* Inteface addition message from zebra. */ | |
d62a17ae | 418 | int rip_interface_add(int command, struct zclient *zclient, zebra_size_t length, |
419 | vrf_id_t vrf_id) | |
718e3744 | 420 | { |
d62a17ae | 421 | struct interface *ifp; |
718e3744 | 422 | |
d62a17ae | 423 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
718e3744 | 424 | |
d62a17ae | 425 | if (IS_RIP_DEBUG_ZEBRA) |
426 | zlog_debug( | |
427 | "interface add %s index %d flags %#llx metric %d mtu %d", | |
428 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
429 | ifp->metric, ifp->mtu); | |
718e3744 | 430 | |
d62a17ae | 431 | /* Check if this interface is RIP enabled or not.*/ |
432 | rip_enable_apply(ifp); | |
718e3744 | 433 | |
d62a17ae | 434 | /* Check for a passive interface */ |
435 | rip_passive_interface_apply(ifp); | |
718e3744 | 436 | |
d62a17ae | 437 | /* Apply distribute list to the all interface. */ |
438 | rip_distribute_update_interface(ifp); | |
718e3744 | 439 | |
d62a17ae | 440 | /* rip_request_neighbor_all (); */ |
16705130 | 441 | |
d62a17ae | 442 | /* Check interface routemap. */ |
443 | rip_if_rmap_update_interface(ifp); | |
444 | ||
445 | return 0; | |
718e3744 | 446 | } |
447 | ||
d62a17ae | 448 | int rip_interface_delete(int command, struct zclient *zclient, |
449 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 450 | { |
d62a17ae | 451 | struct interface *ifp; |
452 | struct stream *s; | |
453 | ||
718e3744 | 454 | |
d62a17ae | 455 | s = zclient->ibuf; |
456 | /* zebra_interface_state_read() updates interface structure in iflist */ | |
457 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 458 | |
d62a17ae | 459 | if (ifp == NULL) |
460 | return 0; | |
461 | ||
462 | if (if_is_up(ifp)) { | |
463 | rip_if_down(ifp); | |
464 | } | |
718e3744 | 465 | |
d62a17ae | 466 | zlog_info("interface delete %s index %d flags %#llx metric %d mtu %d", |
467 | ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, | |
468 | ifp->metric, ifp->mtu); | |
718e3744 | 469 | |
d62a17ae | 470 | /* To support pseudo interface do not free interface structure. */ |
471 | /* if_delete(ifp); */ | |
ff880b78 | 472 | if_set_index(ifp, IFINDEX_INTERNAL); |
718e3744 | 473 | |
d62a17ae | 474 | return 0; |
718e3744 | 475 | } |
476 | ||
d62a17ae | 477 | static void rip_interface_clean(struct rip_interface *ri) |
4305dfd1 | 478 | { |
d62a17ae | 479 | ri->enable_network = 0; |
480 | ri->enable_interface = 0; | |
481 | ri->running = 0; | |
718e3744 | 482 | |
d62a17ae | 483 | if (ri->t_wakeup) { |
484 | thread_cancel(ri->t_wakeup); | |
485 | ri->t_wakeup = NULL; | |
486 | } | |
4305dfd1 | 487 | } |
718e3744 | 488 | |
d62a17ae | 489 | void rip_interfaces_clean(void) |
718e3744 | 490 | { |
f4e14fdb | 491 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 492 | struct interface *ifp; |
718e3744 | 493 | |
451fda4f | 494 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 495 | rip_interface_clean(ifp->info); |
1dec2166 | 496 | } |
718e3744 | 497 | |
d62a17ae | 498 | static void rip_interface_reset(struct rip_interface *ri) |
4305dfd1 | 499 | { |
94b117b2 RW |
500 | ri->auth_type = yang_get_default_enum("%s/authentication-scheme/mode", |
501 | RIP_IFACE); | |
502 | ri->md5_auth_len = yang_get_default_enum( | |
503 | "%s/authentication-scheme/md5-auth-length", RIP_IFACE); | |
718e3744 | 504 | |
d62a17ae | 505 | /* Set default split-horizon behavior. If the interface is Frame |
506 | Relay or SMDS is enabled, the default value for split-horizon is | |
507 | off. But currently Zebra does detect Frame Relay or SMDS | |
508 | interface. So all interface is set to split horizon. */ | |
94b117b2 RW |
509 | ri->split_horizon = |
510 | yang_get_default_enum("%s/split-horizon", RIP_IFACE); | |
718e3744 | 511 | |
94b117b2 RW |
512 | ri->ri_send = yang_get_default_enum("%s/version-send", RIP_IFACE); |
513 | ri->ri_receive = yang_get_default_enum("%s/version-receive", RIP_IFACE); | |
514 | ri->v2_broadcast = yang_get_default_bool("%s/v2-broadcast", RIP_IFACE); | |
f90310cf | 515 | |
03c20031 DS |
516 | if (ri->auth_str) |
517 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->auth_str); | |
518 | ||
519 | if (ri->key_chain) | |
520 | XFREE(MTYPE_RIP_INTERFACE_STRING, ri->key_chain); | |
521 | ||
d62a17ae | 522 | ri->list[RIP_FILTER_IN] = NULL; |
523 | ri->list[RIP_FILTER_OUT] = NULL; | |
718e3744 | 524 | |
d62a17ae | 525 | ri->prefix[RIP_FILTER_IN] = NULL; |
526 | ri->prefix[RIP_FILTER_OUT] = NULL; | |
718e3744 | 527 | |
d62a17ae | 528 | ri->recv_badpackets = 0; |
529 | ri->recv_badroutes = 0; | |
530 | ri->sent_updates = 0; | |
4305dfd1 | 531 | |
d62a17ae | 532 | ri->passive = 0; |
718e3744 | 533 | |
d62a17ae | 534 | rip_interface_clean(ri); |
4305dfd1 | 535 | } |
718e3744 | 536 | |
d62a17ae | 537 | void rip_interfaces_reset(void) |
1dec2166 | 538 | { |
f4e14fdb | 539 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 540 | struct interface *ifp; |
718e3744 | 541 | |
451fda4f | 542 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 543 | rip_interface_reset(ifp->info); |
718e3744 | 544 | } |
545 | ||
d62a17ae | 546 | int rip_if_down(struct interface *ifp) |
718e3744 | 547 | { |
d62a17ae | 548 | struct route_node *rp; |
549 | struct rip_info *rinfo; | |
550 | struct rip_interface *ri = NULL; | |
551 | struct list *list = NULL; | |
552 | struct listnode *listnode = NULL, *nextnode = NULL; | |
553 | if (rip) { | |
554 | for (rp = route_top(rip->table); rp; rp = route_next(rp)) | |
555 | if ((list = rp->info) != NULL) | |
556 | for (ALL_LIST_ELEMENTS(list, listnode, nextnode, | |
557 | rinfo)) | |
dd127197 | 558 | if (rinfo->nh.ifindex == ifp->ifindex) |
d62a17ae | 559 | rip_ecmp_delete(rinfo); |
560 | ||
561 | ri = ifp->info; | |
562 | ||
563 | if (ri->running) { | |
564 | if (IS_RIP_DEBUG_EVENT) | |
565 | zlog_debug("turn off %s", ifp->name); | |
566 | ||
567 | /* Leave from multicast group. */ | |
568 | rip_multicast_leave(ifp, rip->sock); | |
569 | ||
570 | ri->running = 0; | |
571 | } | |
572 | } | |
573 | ||
574 | return 0; | |
718e3744 | 575 | } |
576 | ||
577 | /* Needed for stop RIP process. */ | |
d62a17ae | 578 | void rip_if_down_all() |
718e3744 | 579 | { |
f4e14fdb | 580 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 581 | struct interface *ifp; |
718e3744 | 582 | |
451fda4f | 583 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 584 | rip_if_down(ifp); |
718e3744 | 585 | } |
586 | ||
d62a17ae | 587 | static void rip_apply_address_add(struct connected *ifc) |
dc63bfd4 | 588 | { |
d62a17ae | 589 | struct prefix_ipv4 address; |
3f5682c8 | 590 | struct nexthop nh; |
d62a17ae | 591 | struct prefix *p; |
16705130 | 592 | |
d62a17ae | 593 | if (!rip) |
594 | return; | |
16705130 | 595 | |
d62a17ae | 596 | if (!if_is_up(ifc->ifp)) |
597 | return; | |
16705130 | 598 | |
d62a17ae | 599 | p = ifc->address; |
16705130 | 600 | |
d62a17ae | 601 | memset(&address, 0, sizeof(address)); |
3f5682c8 DS |
602 | memset(&nh, 0, sizeof(nh)); |
603 | ||
d62a17ae | 604 | address.family = p->family; |
605 | address.prefix = p->u.prefix4; | |
606 | address.prefixlen = p->prefixlen; | |
607 | apply_mask_ipv4(&address); | |
16705130 | 608 | |
3f5682c8 DS |
609 | nh.ifindex = ifc->ifp->ifindex; |
610 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
611 | ||
d62a17ae | 612 | /* Check if this interface is RIP enabled or not |
613 | or Check if this address's prefix is RIP enabled */ | |
614 | if ((rip_enable_if_lookup(ifc->ifp->name) >= 0) | |
615 | || (rip_enable_network_lookup2(ifc) >= 0)) | |
616 | rip_redistribute_add(ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, | |
3f5682c8 | 617 | &address, &nh, 0, 0, 0); |
16705130 | 618 | } |
619 | ||
d62a17ae | 620 | int rip_interface_address_add(int command, struct zclient *zclient, |
621 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 622 | { |
d62a17ae | 623 | struct connected *ifc; |
624 | struct prefix *p; | |
718e3744 | 625 | |
d62a17ae | 626 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, |
627 | zclient->ibuf, vrf_id); | |
718e3744 | 628 | |
d62a17ae | 629 | if (ifc == NULL) |
630 | return 0; | |
718e3744 | 631 | |
d62a17ae | 632 | p = ifc->address; |
718e3744 | 633 | |
d62a17ae | 634 | if (p->family == AF_INET) { |
635 | if (IS_RIP_DEBUG_ZEBRA) | |
636 | zlog_debug("connected address %s/%d is added", | |
637 | inet_ntoa(p->u.prefix4), p->prefixlen); | |
16705130 | 638 | |
d62a17ae | 639 | rip_enable_apply(ifc->ifp); |
640 | /* Check if this prefix needs to be redistributed */ | |
641 | rip_apply_address_add(ifc); | |
718e3744 | 642 | |
d62a17ae | 643 | hook_call(rip_ifaddr_add, ifc); |
644 | } | |
718e3744 | 645 | |
d62a17ae | 646 | return 0; |
718e3744 | 647 | } |
648 | ||
d62a17ae | 649 | static void rip_apply_address_del(struct connected *ifc) |
650 | { | |
651 | struct prefix_ipv4 address; | |
652 | struct prefix *p; | |
16705130 | 653 | |
d62a17ae | 654 | if (!rip) |
655 | return; | |
16705130 | 656 | |
d62a17ae | 657 | if (!if_is_up(ifc->ifp)) |
658 | return; | |
16705130 | 659 | |
d62a17ae | 660 | p = ifc->address; |
16705130 | 661 | |
d62a17ae | 662 | memset(&address, 0, sizeof(address)); |
663 | address.family = p->family; | |
664 | address.prefix = p->u.prefix4; | |
665 | address.prefixlen = p->prefixlen; | |
666 | apply_mask_ipv4(&address); | |
16705130 | 667 | |
d62a17ae | 668 | rip_redistribute_delete(ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE, |
669 | &address, ifc->ifp->ifindex); | |
16705130 | 670 | } |
671 | ||
d62a17ae | 672 | int rip_interface_address_delete(int command, struct zclient *zclient, |
673 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 674 | { |
d62a17ae | 675 | struct connected *ifc; |
676 | struct prefix *p; | |
718e3744 | 677 | |
d62a17ae | 678 | ifc = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, |
679 | zclient->ibuf, vrf_id); | |
718e3744 | 680 | |
d62a17ae | 681 | if (ifc) { |
682 | p = ifc->address; | |
683 | if (p->family == AF_INET) { | |
684 | if (IS_RIP_DEBUG_ZEBRA) | |
685 | zlog_debug("connected address %s/%d is deleted", | |
686 | inet_ntoa(p->u.prefix4), | |
687 | p->prefixlen); | |
16705130 | 688 | |
d62a17ae | 689 | hook_call(rip_ifaddr_del, ifc); |
718e3744 | 690 | |
d62a17ae | 691 | /* Chech wether this prefix needs to be removed */ |
692 | rip_apply_address_del(ifc); | |
693 | } | |
718e3744 | 694 | |
d62a17ae | 695 | connected_free(ifc); |
696 | } | |
718e3744 | 697 | |
d62a17ae | 698 | return 0; |
718e3744 | 699 | } |
6b0655a2 | 700 | |
718e3744 | 701 | /* Check interface is enabled by network statement. */ |
16705130 | 702 | /* Check wether the interface has at least a connected prefix that |
703 | * is within the ripng_enable_network table. */ | |
d62a17ae | 704 | static int rip_enable_network_lookup_if(struct interface *ifp) |
705 | { | |
706 | struct listnode *node, *nnode; | |
707 | struct connected *connected; | |
708 | struct prefix_ipv4 address; | |
709 | ||
710 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
711 | struct prefix *p; | |
dc7204b7 | 712 | struct route_node *n; |
d62a17ae | 713 | |
714 | p = connected->address; | |
715 | ||
716 | if (p->family == AF_INET) { | |
717 | address.family = AF_INET; | |
718 | address.prefix = p->u.prefix4; | |
719 | address.prefixlen = IPV4_MAX_BITLEN; | |
720 | ||
dc7204b7 A |
721 | n = route_node_match(rip_enable_network, |
722 | (struct prefix *)&address); | |
723 | if (n) { | |
724 | route_unlock_node(n); | |
d62a17ae | 725 | return 1; |
726 | } | |
727 | } | |
728 | } | |
729 | return -1; | |
718e3744 | 730 | } |
731 | ||
16705130 | 732 | /* Check wether connected is within the ripng_enable_network table. */ |
d62a17ae | 733 | int rip_enable_network_lookup2(struct connected *connected) |
16705130 | 734 | { |
d62a17ae | 735 | struct prefix_ipv4 address; |
736 | struct prefix *p; | |
16705130 | 737 | |
d62a17ae | 738 | p = connected->address; |
16705130 | 739 | |
d62a17ae | 740 | if (p->family == AF_INET) { |
741 | struct route_node *node; | |
16705130 | 742 | |
d62a17ae | 743 | address.family = p->family; |
744 | address.prefix = p->u.prefix4; | |
745 | address.prefixlen = IPV4_MAX_BITLEN; | |
16705130 | 746 | |
d62a17ae | 747 | /* LPM on p->family, p->u.prefix4/IPV4_MAX_BITLEN within |
748 | * rip_enable_network */ | |
749 | node = route_node_match(rip_enable_network, | |
750 | (struct prefix *)&address); | |
16705130 | 751 | |
d62a17ae | 752 | if (node) { |
753 | route_unlock_node(node); | |
754 | return 1; | |
755 | } | |
756 | } | |
16705130 | 757 | |
d62a17ae | 758 | return -1; |
16705130 | 759 | } |
718e3744 | 760 | /* Add RIP enable network. */ |
3d7a1be8 | 761 | int rip_enable_network_add(struct prefix *p) |
718e3744 | 762 | { |
d62a17ae | 763 | struct route_node *node; |
718e3744 | 764 | |
d62a17ae | 765 | node = route_node_get(rip_enable_network, p); |
718e3744 | 766 | |
d62a17ae | 767 | if (node->info) { |
768 | route_unlock_node(node); | |
3d7a1be8 | 769 | return NB_ERR_INCONSISTENCY; |
d62a17ae | 770 | } else |
771 | node->info = (void *)1; | |
718e3744 | 772 | |
d62a17ae | 773 | /* XXX: One should find a better solution than a generic one */ |
774 | rip_enable_apply_all(); | |
16705130 | 775 | |
3d7a1be8 | 776 | return NB_OK; |
718e3744 | 777 | } |
778 | ||
779 | /* Delete RIP enable network. */ | |
3d7a1be8 | 780 | int rip_enable_network_delete(struct prefix *p) |
718e3744 | 781 | { |
d62a17ae | 782 | struct route_node *node; |
718e3744 | 783 | |
d62a17ae | 784 | node = route_node_lookup(rip_enable_network, p); |
785 | if (node) { | |
786 | node->info = NULL; | |
718e3744 | 787 | |
d62a17ae | 788 | /* Unlock info lock. */ |
789 | route_unlock_node(node); | |
718e3744 | 790 | |
d62a17ae | 791 | /* Unlock lookup lock. */ |
792 | route_unlock_node(node); | |
718e3744 | 793 | |
d62a17ae | 794 | /* XXX: One should find a better solution than a generic one */ |
795 | rip_enable_apply_all(); | |
16705130 | 796 | |
3d7a1be8 | 797 | return NB_OK; |
d62a17ae | 798 | } |
3d7a1be8 RW |
799 | |
800 | return NB_ERR_INCONSISTENCY; | |
718e3744 | 801 | } |
802 | ||
803 | /* Check interface is enabled by ifname statement. */ | |
d62a17ae | 804 | static int rip_enable_if_lookup(const char *ifname) |
718e3744 | 805 | { |
d62a17ae | 806 | unsigned int i; |
807 | char *str; | |
718e3744 | 808 | |
d62a17ae | 809 | for (i = 0; i < vector_active(rip_enable_interface); i++) |
810 | if ((str = vector_slot(rip_enable_interface, i)) != NULL) | |
811 | if (strcmp(str, ifname) == 0) | |
812 | return i; | |
813 | return -1; | |
718e3744 | 814 | } |
815 | ||
816 | /* Add interface to rip_enable_if. */ | |
3d7a1be8 | 817 | int rip_enable_if_add(const char *ifname) |
718e3744 | 818 | { |
d62a17ae | 819 | int ret; |
718e3744 | 820 | |
d62a17ae | 821 | ret = rip_enable_if_lookup(ifname); |
822 | if (ret >= 0) | |
3d7a1be8 | 823 | return NB_ERR_INCONSISTENCY; |
718e3744 | 824 | |
03c20031 DS |
825 | vector_set(rip_enable_interface, |
826 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); | |
718e3744 | 827 | |
d62a17ae | 828 | rip_enable_apply_all(); /* TODOVJ */ |
16705130 | 829 | |
3d7a1be8 | 830 | return NB_OK; |
718e3744 | 831 | } |
832 | ||
833 | /* Delete interface from rip_enable_if. */ | |
3d7a1be8 | 834 | int rip_enable_if_delete(const char *ifname) |
718e3744 | 835 | { |
d62a17ae | 836 | int index; |
837 | char *str; | |
718e3744 | 838 | |
d62a17ae | 839 | index = rip_enable_if_lookup(ifname); |
840 | if (index < 0) | |
3d7a1be8 | 841 | return NB_ERR_INCONSISTENCY; |
718e3744 | 842 | |
d62a17ae | 843 | str = vector_slot(rip_enable_interface, index); |
03c20031 | 844 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 845 | vector_unset(rip_enable_interface, index); |
718e3744 | 846 | |
d62a17ae | 847 | rip_enable_apply_all(); /* TODOVJ */ |
16705130 | 848 | |
3d7a1be8 | 849 | return NB_OK; |
718e3744 | 850 | } |
851 | ||
852 | /* Join to multicast group and send request to the interface. */ | |
d62a17ae | 853 | static int rip_interface_wakeup(struct thread *t) |
718e3744 | 854 | { |
d62a17ae | 855 | struct interface *ifp; |
856 | struct rip_interface *ri; | |
718e3744 | 857 | |
d62a17ae | 858 | /* Get interface. */ |
859 | ifp = THREAD_ARG(t); | |
718e3744 | 860 | |
d62a17ae | 861 | ri = ifp->info; |
862 | ri->t_wakeup = NULL; | |
718e3744 | 863 | |
d62a17ae | 864 | /* Join to multicast group. */ |
865 | if (rip_multicast_join(ifp, rip->sock) < 0) { | |
450971aa | 866 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
867 | "multicast join failed, interface %s not running", |
868 | ifp->name); | |
d62a17ae | 869 | return 0; |
870 | } | |
718e3744 | 871 | |
d62a17ae | 872 | /* Set running flag. */ |
873 | ri->running = 1; | |
874 | ||
875 | /* Send RIP request to the interface. */ | |
876 | rip_request_interface(ifp); | |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
881 | static void rip_connect_set(struct interface *ifp, int set) | |
882 | { | |
883 | struct listnode *node, *nnode; | |
884 | struct connected *connected; | |
885 | struct prefix_ipv4 address; | |
3f5682c8 DS |
886 | struct nexthop nh; |
887 | ||
888 | memset(&nh, 0, sizeof(nh)); | |
d62a17ae | 889 | |
890 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, connected)) { | |
891 | struct prefix *p; | |
892 | p = connected->address; | |
893 | ||
894 | if (p->family != AF_INET) | |
895 | continue; | |
896 | ||
897 | address.family = AF_INET; | |
898 | address.prefix = p->u.prefix4; | |
899 | address.prefixlen = p->prefixlen; | |
900 | apply_mask_ipv4(&address); | |
901 | ||
3f5682c8 DS |
902 | nh.ifindex = connected->ifp->ifindex; |
903 | nh.type = NEXTHOP_TYPE_IFINDEX; | |
d62a17ae | 904 | if (set) { |
905 | /* Check once more wether this prefix is within a | |
906 | * "network IF_OR_PREF" one */ | |
907 | if ((rip_enable_if_lookup(connected->ifp->name) >= 0) | |
908 | || (rip_enable_network_lookup2(connected) >= 0)) | |
996c9314 LB |
909 | rip_redistribute_add(ZEBRA_ROUTE_CONNECT, |
910 | RIP_ROUTE_INTERFACE, | |
911 | &address, &nh, 0, 0, 0); | |
d62a17ae | 912 | } else { |
913 | rip_redistribute_delete(ZEBRA_ROUTE_CONNECT, | |
914 | RIP_ROUTE_INTERFACE, &address, | |
915 | connected->ifp->ifindex); | |
916 | if (rip_redistribute_check(ZEBRA_ROUTE_CONNECT)) | |
996c9314 LB |
917 | rip_redistribute_add(ZEBRA_ROUTE_CONNECT, |
918 | RIP_ROUTE_REDISTRIBUTE, | |
919 | &address, &nh, 0, 0, 0); | |
d62a17ae | 920 | } |
921 | } | |
718e3744 | 922 | } |
923 | ||
924 | /* Update interface status. */ | |
d62a17ae | 925 | void rip_enable_apply(struct interface *ifp) |
718e3744 | 926 | { |
d62a17ae | 927 | int ret; |
928 | struct rip_interface *ri = NULL; | |
718e3744 | 929 | |
d62a17ae | 930 | /* Check interface. */ |
931 | if (!if_is_operative(ifp)) | |
932 | return; | |
718e3744 | 933 | |
d62a17ae | 934 | ri = ifp->info; |
935 | ||
936 | /* Check network configuration. */ | |
937 | ret = rip_enable_network_lookup_if(ifp); | |
938 | ||
939 | /* If the interface is matched. */ | |
940 | if (ret > 0) | |
941 | ri->enable_network = 1; | |
942 | else | |
943 | ri->enable_network = 0; | |
944 | ||
945 | /* Check interface name configuration. */ | |
946 | ret = rip_enable_if_lookup(ifp->name); | |
947 | if (ret >= 0) | |
948 | ri->enable_interface = 1; | |
949 | else | |
950 | ri->enable_interface = 0; | |
718e3744 | 951 | |
d62a17ae | 952 | /* any interface MUST have an IPv4 address */ |
953 | if (!rip_if_ipv4_address_check(ifp)) { | |
954 | ri->enable_network = 0; | |
955 | ri->enable_interface = 0; | |
718e3744 | 956 | } |
718e3744 | 957 | |
d62a17ae | 958 | /* Update running status of the interface. */ |
959 | if (ri->enable_network || ri->enable_interface) { | |
960 | { | |
961 | if (IS_RIP_DEBUG_EVENT) | |
962 | zlog_debug("turn on %s", ifp->name); | |
963 | ||
964 | /* Add interface wake up thread. */ | |
965 | thread_add_timer(master, rip_interface_wakeup, ifp, 1, | |
966 | &ri->t_wakeup); | |
967 | rip_connect_set(ifp, 1); | |
968 | } | |
969 | } else { | |
970 | if (ri->running) { | |
971 | /* Might as well clean up the route table as well | |
972 | * rip_if_down sets to 0 ri->running, and displays "turn | |
973 | *off %s" | |
974 | **/ | |
975 | rip_if_down(ifp); | |
976 | ||
977 | rip_connect_set(ifp, 0); | |
978 | } | |
718e3744 | 979 | } |
718e3744 | 980 | } |
981 | ||
982 | /* Apply network configuration to all interface. */ | |
d62a17ae | 983 | void rip_enable_apply_all() |
718e3744 | 984 | { |
f4e14fdb | 985 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 986 | struct interface *ifp; |
718e3744 | 987 | |
d62a17ae | 988 | /* Check each interface. */ |
451fda4f | 989 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 990 | rip_enable_apply(ifp); |
718e3744 | 991 | } |
992 | ||
d62a17ae | 993 | int rip_neighbor_lookup(struct sockaddr_in *from) |
718e3744 | 994 | { |
d62a17ae | 995 | struct prefix_ipv4 p; |
996 | struct route_node *node; | |
718e3744 | 997 | |
d62a17ae | 998 | memset(&p, 0, sizeof(struct prefix_ipv4)); |
999 | p.family = AF_INET; | |
1000 | p.prefix = from->sin_addr; | |
1001 | p.prefixlen = IPV4_MAX_BITLEN; | |
718e3744 | 1002 | |
d62a17ae | 1003 | node = route_node_lookup(rip->neighbor, (struct prefix *)&p); |
1004 | if (node) { | |
1005 | route_unlock_node(node); | |
1006 | return 1; | |
1007 | } | |
1008 | return 0; | |
718e3744 | 1009 | } |
1010 | ||
1011 | /* Add new RIP neighbor to the neighbor tree. */ | |
f0ab22fb | 1012 | int rip_neighbor_add(struct prefix_ipv4 *p) |
718e3744 | 1013 | { |
d62a17ae | 1014 | struct route_node *node; |
718e3744 | 1015 | |
d62a17ae | 1016 | node = route_node_get(rip->neighbor, (struct prefix *)p); |
718e3744 | 1017 | |
d62a17ae | 1018 | if (node->info) |
f0ab22fb | 1019 | return NB_ERR_INCONSISTENCY; |
718e3744 | 1020 | |
d62a17ae | 1021 | node->info = rip->neighbor; |
718e3744 | 1022 | |
f0ab22fb | 1023 | return NB_OK; |
718e3744 | 1024 | } |
1025 | ||
1026 | /* Delete RIP neighbor from the neighbor tree. */ | |
f0ab22fb | 1027 | int rip_neighbor_delete(struct prefix_ipv4 *p) |
718e3744 | 1028 | { |
d62a17ae | 1029 | struct route_node *node; |
718e3744 | 1030 | |
d62a17ae | 1031 | /* Lock for look up. */ |
1032 | node = route_node_lookup(rip->neighbor, (struct prefix *)p); | |
1033 | if (!node) | |
f0ab22fb | 1034 | return NB_ERR_INCONSISTENCY; |
718e3744 | 1035 | |
d62a17ae | 1036 | node->info = NULL; |
718e3744 | 1037 | |
d62a17ae | 1038 | /* Unlock lookup lock. */ |
1039 | route_unlock_node(node); | |
718e3744 | 1040 | |
d62a17ae | 1041 | /* Unlock real neighbor information lock. */ |
1042 | route_unlock_node(node); | |
1043 | ||
f0ab22fb | 1044 | return NB_OK; |
718e3744 | 1045 | } |
1046 | ||
1047 | /* Clear all network and neighbor configuration. */ | |
d62a17ae | 1048 | void rip_clean_network() |
1049 | { | |
1050 | unsigned int i; | |
1051 | char *str; | |
1052 | struct route_node *rn; | |
1053 | ||
1054 | /* rip_enable_network. */ | |
1055 | for (rn = route_top(rip_enable_network); rn; rn = route_next(rn)) | |
1056 | if (rn->info) { | |
1057 | rn->info = NULL; | |
1058 | route_unlock_node(rn); | |
1059 | } | |
1060 | ||
1061 | /* rip_enable_interface. */ | |
1062 | for (i = 0; i < vector_active(rip_enable_interface); i++) | |
1063 | if ((str = vector_slot(rip_enable_interface, i)) != NULL) { | |
03c20031 | 1064 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 1065 | vector_slot(rip_enable_interface, i) = NULL; |
1066 | } | |
718e3744 | 1067 | } |
6b0655a2 | 1068 | |
718e3744 | 1069 | /* Utility function for looking up passive interface settings. */ |
d62a17ae | 1070 | static int rip_passive_nondefault_lookup(const char *ifname) |
718e3744 | 1071 | { |
d62a17ae | 1072 | unsigned int i; |
1073 | char *str; | |
718e3744 | 1074 | |
d62a17ae | 1075 | for (i = 0; i < vector_active(Vrip_passive_nondefault); i++) |
1076 | if ((str = vector_slot(Vrip_passive_nondefault, i)) != NULL) | |
1077 | if (strcmp(str, ifname) == 0) | |
1078 | return i; | |
1079 | return -1; | |
718e3744 | 1080 | } |
1081 | ||
d62a17ae | 1082 | void rip_passive_interface_apply(struct interface *ifp) |
718e3744 | 1083 | { |
d62a17ae | 1084 | struct rip_interface *ri; |
718e3744 | 1085 | |
44f2f852 RW |
1086 | if (rip == NULL) |
1087 | return; | |
1088 | ||
d62a17ae | 1089 | ri = ifp->info; |
718e3744 | 1090 | |
d62a17ae | 1091 | ri->passive = ((rip_passive_nondefault_lookup(ifp->name) < 0) |
44f2f852 RW |
1092 | ? rip->passive_default |
1093 | : !rip->passive_default); | |
4aaff3f8 | 1094 | |
d62a17ae | 1095 | if (IS_RIP_DEBUG_ZEBRA) |
1096 | zlog_debug("interface %s: passive = %d", ifp->name, | |
1097 | ri->passive); | |
718e3744 | 1098 | } |
1099 | ||
d62a17ae | 1100 | static void rip_passive_interface_apply_all(void) |
718e3744 | 1101 | { |
f4e14fdb | 1102 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 1103 | struct interface *ifp; |
718e3744 | 1104 | |
451fda4f | 1105 | FOR_ALL_INTERFACES (vrf, ifp) |
d62a17ae | 1106 | rip_passive_interface_apply(ifp); |
718e3744 | 1107 | } |
1108 | ||
1109 | /* Passive interface. */ | |
44f2f852 | 1110 | int rip_passive_nondefault_set(const char *ifname) |
718e3744 | 1111 | { |
d62a17ae | 1112 | if (rip_passive_nondefault_lookup(ifname) >= 0) |
44f2f852 RW |
1113 | /* |
1114 | * Don't return an error, this can happen after changing | |
1115 | * 'passive-default'. | |
1116 | */ | |
1117 | return NB_OK; | |
718e3744 | 1118 | |
03c20031 DS |
1119 | vector_set(Vrip_passive_nondefault, |
1120 | XSTRDUP(MTYPE_RIP_INTERFACE_STRING, ifname)); | |
718e3744 | 1121 | |
d62a17ae | 1122 | rip_passive_interface_apply_all(); |
718e3744 | 1123 | |
44f2f852 | 1124 | return NB_OK; |
718e3744 | 1125 | } |
1126 | ||
44f2f852 | 1127 | int rip_passive_nondefault_unset(const char *ifname) |
718e3744 | 1128 | { |
d62a17ae | 1129 | int i; |
1130 | char *str; | |
718e3744 | 1131 | |
d62a17ae | 1132 | i = rip_passive_nondefault_lookup(ifname); |
1133 | if (i < 0) | |
44f2f852 RW |
1134 | /* |
1135 | * Don't return an error, this can happen after changing | |
1136 | * 'passive-default'. | |
1137 | */ | |
1138 | return NB_OK; | |
718e3744 | 1139 | |
d62a17ae | 1140 | str = vector_slot(Vrip_passive_nondefault, i); |
03c20031 | 1141 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 1142 | vector_unset(Vrip_passive_nondefault, i); |
718e3744 | 1143 | |
d62a17ae | 1144 | rip_passive_interface_apply_all(); |
718e3744 | 1145 | |
44f2f852 | 1146 | return NB_OK; |
718e3744 | 1147 | } |
1148 | ||
1149 | /* Free all configured RIP passive-interface settings. */ | |
d62a17ae | 1150 | void rip_passive_nondefault_clean(void) |
718e3744 | 1151 | { |
d62a17ae | 1152 | unsigned int i; |
1153 | char *str; | |
718e3744 | 1154 | |
d62a17ae | 1155 | for (i = 0; i < vector_active(Vrip_passive_nondefault); i++) |
1156 | if ((str = vector_slot(Vrip_passive_nondefault, i)) != NULL) { | |
03c20031 | 1157 | XFREE(MTYPE_RIP_INTERFACE_STRING, str); |
d62a17ae | 1158 | vector_slot(Vrip_passive_nondefault, i) = NULL; |
1159 | } | |
1160 | rip_passive_interface_apply_all(); | |
718e3744 | 1161 | } |
6b0655a2 | 1162 | |
718e3744 | 1163 | /* Write rip configuration of each interface. */ |
d62a17ae | 1164 | static int rip_interface_config_write(struct vty *vty) |
1165 | { | |
f4e14fdb | 1166 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
d62a17ae | 1167 | struct interface *ifp; |
94b117b2 | 1168 | int write = 0; |
d62a17ae | 1169 | |
451fda4f | 1170 | FOR_ALL_INTERFACES (vrf, ifp) { |
94b117b2 | 1171 | struct lyd_node *dnode; |
d62a17ae | 1172 | |
94b117b2 RW |
1173 | dnode = yang_dnode_get( |
1174 | running_config->dnode, | |
1175 | "/frr-interface:lib/interface[name='%s'][vrf='%s']", | |
1176 | ifp->name, vrf->name); | |
1177 | if (dnode == NULL) | |
d62a17ae | 1178 | continue; |
1179 | ||
94b117b2 RW |
1180 | write = 1; |
1181 | nb_cli_show_dnode_cmds(vty, dnode, false); | |
d62a17ae | 1182 | } |
94b117b2 RW |
1183 | |
1184 | return write; | |
d62a17ae | 1185 | } |
1186 | ||
44f2f852 | 1187 | int rip_show_network_config(struct vty *vty) |
d62a17ae | 1188 | { |
1189 | unsigned int i; | |
1190 | char *ifname; | |
1191 | struct route_node *node; | |
1192 | ||
1193 | /* Network type RIP enable interface statement. */ | |
1194 | for (node = route_top(rip_enable_network); node; | |
1195 | node = route_next(node)) | |
1196 | if (node->info) | |
44f2f852 | 1197 | vty_out(vty, " %s/%u\n", |
d62a17ae | 1198 | inet_ntoa(node->p.u.prefix4), |
1199 | node->p.prefixlen); | |
1200 | ||
1201 | /* Interface name RIP enable statement. */ | |
1202 | for (i = 0; i < vector_active(rip_enable_interface); i++) | |
1203 | if ((ifname = vector_slot(rip_enable_interface, i)) != NULL) | |
44f2f852 | 1204 | vty_out(vty, " %s\n", ifname); |
d62a17ae | 1205 | |
1206 | /* RIP neighbors listing. */ | |
1207 | for (node = route_top(rip->neighbor); node; node = route_next(node)) | |
1208 | if (node->info) | |
44f2f852 | 1209 | vty_out(vty, " %s\n", inet_ntoa(node->p.u.prefix4)); |
718e3744 | 1210 | |
d62a17ae | 1211 | return 0; |
1212 | } | |
1213 | ||
1214 | static struct cmd_node interface_node = { | |
9d303b37 | 1215 | INTERFACE_NODE, "%s(config-if)# ", 1, |
718e3744 | 1216 | }; |
1217 | ||
1218 | /* Called when interface structure allocated. */ | |
d62a17ae | 1219 | static int rip_interface_new_hook(struct interface *ifp) |
718e3744 | 1220 | { |
d62a17ae | 1221 | ifp->info = rip_interface_new(); |
1222 | return 0; | |
718e3744 | 1223 | } |
1224 | ||
1225 | /* Called when interface structure deleted. */ | |
d62a17ae | 1226 | static int rip_interface_delete_hook(struct interface *ifp) |
718e3744 | 1227 | { |
d62a17ae | 1228 | XFREE(MTYPE_RIP_INTERFACE, ifp->info); |
1229 | ifp->info = NULL; | |
1230 | return 0; | |
718e3744 | 1231 | } |
1232 | ||
1233 | /* Allocate and initialize interface vector. */ | |
d62a17ae | 1234 | void rip_if_init(void) |
718e3744 | 1235 | { |
d62a17ae | 1236 | /* Default initial size of interface vector. */ |
ce19a04a DL |
1237 | hook_register_prio(if_add, 0, rip_interface_new_hook); |
1238 | hook_register_prio(if_del, 0, rip_interface_delete_hook); | |
d62a17ae | 1239 | |
1240 | /* RIP network init. */ | |
1241 | rip_enable_interface = vector_init(1); | |
1242 | rip_enable_network = route_table_init(); | |
718e3744 | 1243 | |
d62a17ae | 1244 | /* RIP passive interface. */ |
1245 | Vrip_passive_nondefault = vector_init(1); | |
718e3744 | 1246 | |
d62a17ae | 1247 | /* Install interface node. */ |
1248 | install_node(&interface_node, rip_interface_config_write); | |
1249 | if_cmd_init(); | |
718e3744 | 1250 | } |