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718e3744 | 1 | /* |
2 | * Address linked list routine. | |
3 | * Copyright (C) 1997, 98 Kunihiro Ishiguro | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #include "prefix.h" | |
25 | #include "linklist.h" | |
26 | #include "if.h" | |
27 | #include "table.h" | |
28 | #include "rib.h" | |
29 | #include "table.h" | |
30 | #include "log.h" | |
0752ef0b | 31 | #include "memory.h" |
4a1ab8e4 | 32 | #include "zebra_memory.h" |
718e3744 | 33 | |
82f97584 | 34 | #include "vty.h" |
b84c7253 | 35 | #include "zebra/debug.h" |
718e3744 | 36 | #include "zebra/zserv.h" |
37 | #include "zebra/redistribute.h" | |
eef1fe11 | 38 | #include "zebra/interface.h" |
a1ac18c4 | 39 | #include "zebra/connected.h" |
b6120505 | 40 | #include "zebra/rtadv.h" |
40c7bdb0 | 41 | #include "zebra/zebra_mpls.h" |
939fba27 | 42 | #include "zebra/debug.h" |
9df414fe | 43 | #include "zebra/zebra_errors.h" |
6b0655a2 | 44 | |
02b4805f | 45 | /* communicate the withdrawal of a connected address */ |
d62a17ae | 46 | static void connected_withdraw(struct connected *ifc) |
ca16218d | 47 | { |
d62a17ae | 48 | if (!ifc) |
49 | return; | |
ca16218d | 50 | |
d62a17ae | 51 | /* Update interface address information to protocol daemon. */ |
52 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) { | |
53 | zebra_interface_address_delete_update(ifc->ifp, ifc); | |
ca16218d | 54 | |
d62a17ae | 55 | if (ifc->address->family == AF_INET) |
56 | if_subnet_delete(ifc->ifp, ifc); | |
9db047fc | 57 | |
11461c63 | 58 | connected_down(ifc->ifp, ifc); |
ca16218d | 59 | |
d62a17ae | 60 | UNSET_FLAG(ifc->conf, ZEBRA_IFC_REAL); |
61 | } | |
ca16218d | 62 | |
d62a17ae | 63 | /* The address is not in the kernel anymore, so clear the flag */ |
64 | UNSET_FLAG(ifc->conf, ZEBRA_IFC_QUEUED); | |
f7f740fe | 65 | |
d62a17ae | 66 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_CONFIGURED)) { |
67 | listnode_delete(ifc->ifp->connected, ifc); | |
68 | connected_free(ifc); | |
69 | } | |
ca16218d | 70 | } |
71 | ||
d62a17ae | 72 | static void connected_announce(struct interface *ifp, struct connected *ifc) |
ca16218d | 73 | { |
d62a17ae | 74 | if (!ifc) |
75 | return; | |
76 | ||
b0fa6f6a CS |
77 | if (!if_is_loopback(ifp) && ifc->address->family == AF_INET && |
78 | !IS_ZEBRA_IF_VRF(ifp)) { | |
d62a17ae | 79 | if (ifc->address->prefixlen == 32) |
80 | SET_FLAG(ifc->flags, ZEBRA_IFA_UNNUMBERED); | |
81 | else | |
82 | UNSET_FLAG(ifc->flags, ZEBRA_IFA_UNNUMBERED); | |
83 | } | |
84 | ||
85 | listnode_add(ifp->connected, ifc); | |
86 | ||
87 | /* Update interface address information to protocol daemon. */ | |
88 | if (ifc->address->family == AF_INET) | |
89 | if_subnet_add(ifp, ifc); | |
90 | ||
91 | zebra_interface_address_add_update(ifp, ifc); | |
92 | ||
93 | if (if_is_operative(ifp)) { | |
ae87977c | 94 | connected_up(ifp, ifc); |
d62a17ae | 95 | } |
ca16218d | 96 | } |
6b0655a2 | 97 | |
718e3744 | 98 | /* If same interface address is already exist... */ |
abffde07 DL |
99 | struct connected *connected_check(struct interface *ifp, |
100 | union prefixconstptr pu) | |
718e3744 | 101 | { |
abffde07 | 102 | const struct prefix *p = pu.p; |
d62a17ae | 103 | struct connected *ifc; |
104 | struct listnode *node; | |
718e3744 | 105 | |
d62a17ae | 106 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) |
107 | if (prefix_same(ifc->address, p)) | |
108 | return ifc; | |
718e3744 | 109 | |
d62a17ae | 110 | return NULL; |
718e3744 | 111 | } |
112 | ||
abffde07 DL |
113 | /* same, but with peer address */ |
114 | struct connected *connected_check_ptp(struct interface *ifp, | |
115 | union prefixconstptr pu, | |
116 | union prefixconstptr du) | |
117 | { | |
118 | const struct prefix *p = pu.p; | |
119 | const struct prefix *d = du.p; | |
120 | struct connected *ifc; | |
121 | struct listnode *node; | |
122 | ||
123 | /* ignore broadcast addresses */ | |
124 | if (p->prefixlen != IPV4_MAX_PREFIXLEN) | |
125 | d = NULL; | |
126 | ||
127 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { | |
128 | if (!prefix_same(ifc->address, p)) | |
129 | continue; | |
130 | if (!CONNECTED_PEER(ifc) && !d) | |
131 | return ifc; | |
132 | if (CONNECTED_PEER(ifc) && d | |
133 | && prefix_same(ifc->destination, d)) | |
134 | return ifc; | |
135 | } | |
136 | ||
137 | return NULL; | |
138 | } | |
139 | ||
02b4805f | 140 | /* Check if two ifc's describe the same address in the same state */ |
d62a17ae | 141 | static int connected_same(struct connected *ifc1, struct connected *ifc2) |
74ecdc9e | 142 | { |
d62a17ae | 143 | if (ifc1->ifp != ifc2->ifp) |
144 | return 0; | |
145 | ||
146 | if (ifc1->destination) | |
147 | if (!ifc2->destination) | |
148 | return 0; | |
149 | if (ifc2->destination) | |
150 | if (!ifc1->destination) | |
151 | return 0; | |
152 | ||
153 | if (ifc1->destination && ifc2->destination) | |
154 | if (!prefix_same(ifc1->destination, ifc2->destination)) | |
155 | return 0; | |
156 | ||
157 | if (ifc1->flags != ifc2->flags) | |
158 | return 0; | |
159 | ||
160 | if (ifc1->conf != ifc2->conf) | |
161 | return 0; | |
162 | ||
163 | return 1; | |
74ecdc9e PJ |
164 | } |
165 | ||
d7f5dad6 CF |
166 | /* Handle changes to addresses and send the neccesary announcements |
167 | * to clients. */ | |
d62a17ae | 168 | static void connected_update(struct interface *ifp, struct connected *ifc) |
74ecdc9e | 169 | { |
d62a17ae | 170 | struct connected *current; |
171 | ||
172 | /* Check same connected route. */ | |
abffde07 DL |
173 | current = connected_check_ptp(ifp, ifc->address, ifc->destination); |
174 | if (current) { | |
d62a17ae | 175 | if (CHECK_FLAG(current->conf, ZEBRA_IFC_CONFIGURED)) |
176 | SET_FLAG(ifc->conf, ZEBRA_IFC_CONFIGURED); | |
177 | ||
178 | /* Avoid spurious withdraws, this might be just the kernel | |
179 | * 'reflecting' | |
180 | * back an address we have already added. | |
181 | */ | |
182 | if (connected_same(current, ifc)) { | |
183 | /* nothing to do */ | |
184 | connected_free(ifc); | |
185 | return; | |
186 | } | |
187 | ||
188 | /* Clear the configured flag on the old ifc, so it will be freed | |
189 | * by | |
190 | * connected withdraw. */ | |
191 | UNSET_FLAG(current->conf, ZEBRA_IFC_CONFIGURED); | |
192 | connected_withdraw( | |
193 | current); /* implicit withdraw - freebsd does this */ | |
194 | } | |
195 | ||
196 | /* If the connected is new or has changed, announce it, if it is usable | |
197 | */ | |
198 | if (CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) | |
199 | connected_announce(ifp, ifc); | |
74ecdc9e PJ |
200 | } |
201 | ||
718e3744 | 202 | /* Called from if_up(). */ |
ae87977c | 203 | void connected_up(struct interface *ifp, struct connected *ifc) |
718e3744 | 204 | { |
ae87977c | 205 | afi_t afi; |
d62a17ae | 206 | struct prefix p; |
fd36be7e | 207 | struct nexthop nh = { |
4a7371e9 DS |
208 | .type = NEXTHOP_TYPE_IFINDEX, |
209 | .ifindex = ifp->ifindex, | |
a36898e7 | 210 | .vrf_id = ifp->vrf_id, |
fd36be7e | 211 | }; |
56e78254 | 212 | struct zebra_vrf *zvrf; |
cde1af84 | 213 | uint32_t metric; |
d62a17ae | 214 | |
a36898e7 | 215 | zvrf = zebra_vrf_lookup_by_id(ifp->vrf_id); |
56e78254 DS |
216 | if (!zvrf) { |
217 | flog_err(EC_ZEBRA_VRF_NOT_FOUND, | |
218 | "%s: Received Up for interface but no associated zvrf: %d", | |
a36898e7 | 219 | __PRETTY_FUNCTION__, ifp->vrf_id); |
56e78254 DS |
220 | return; |
221 | } | |
d62a17ae | 222 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) |
223 | return; | |
224 | ||
ae87977c | 225 | PREFIX_COPY(&p, CONNECTED_PREFIX(ifc)); |
d62a17ae | 226 | |
227 | /* Apply mask to the network. */ | |
228 | apply_mask(&p); | |
229 | ||
ae87977c DS |
230 | afi = family2afi(p.family); |
231 | ||
232 | switch (afi) { | |
233 | case AFI_IP: | |
234 | /* | |
235 | * In case of connected address is 0.0.0.0/0 we treat it tunnel | |
236 | * address. | |
237 | */ | |
238 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) | |
239 | return; | |
240 | break; | |
241 | case AFI_IP6: | |
242 | #ifndef LINUX | |
243 | /* XXX: It is already done by rib_bogus_ipv6 within rib_add */ | |
244 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) | |
245 | return; | |
246 | #endif | |
247 | break; | |
248 | default: | |
e914ccbe | 249 | flog_warn(EC_ZEBRA_CONNECTED_AFI_UNKNOWN, |
9df414fe | 250 | "Received unknown AFI: %s", afi2str(afi)); |
d62a17ae | 251 | return; |
ae87977c DS |
252 | break; |
253 | } | |
d62a17ae | 254 | |
cde1af84 AK |
255 | metric = (ifc->metric < (uint32_t)METRIC_MAX) ? |
256 | ifc->metric : ifp->metric; | |
56e78254 DS |
257 | rib_add(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_CONNECT, |
258 | 0, 0, &p, NULL, &nh, zvrf->table_id, metric, 0, 0, 0); | |
d62a17ae | 259 | |
56e78254 DS |
260 | rib_add(afi, SAFI_MULTICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_CONNECT, |
261 | 0, 0, &p, NULL, &nh, zvrf->table_id, metric, 0, 0, 0); | |
d62a17ae | 262 | |
ae87977c DS |
263 | if (IS_ZEBRA_DEBUG_RIB_DETAILED) { |
264 | char buf[PREFIX_STRLEN]; | |
265 | ||
996c9314 LB |
266 | zlog_debug( |
267 | "%u: IF %s address %s add/up, scheduling RIB processing", | |
a36898e7 | 268 | ifp->vrf_id, ifp->name, |
996c9314 | 269 | prefix2str(&p, buf, sizeof(buf))); |
ae87977c | 270 | } |
56e78254 | 271 | rib_update(zvrf->vrf->vrf_id, RIB_UPDATE_IF_CHANGE); |
d62a17ae | 272 | |
273 | /* Schedule LSP forwarding entries for processing, if appropriate. */ | |
56e78254 | 274 | if (zvrf->vrf->vrf_id == VRF_DEFAULT) { |
ae87977c DS |
275 | if (IS_ZEBRA_DEBUG_MPLS) { |
276 | char buf[PREFIX_STRLEN]; | |
277 | ||
996c9314 LB |
278 | zlog_debug( |
279 | "%u: IF %s IP %s address add/up, scheduling MPLS processing", | |
56e78254 | 280 | zvrf->vrf->vrf_id, ifp->name, |
996c9314 | 281 | prefix2str(&p, buf, sizeof(buf))); |
ae87977c | 282 | } |
56e78254 | 283 | mpls_mark_lsps_for_processing(zvrf, &p); |
d62a17ae | 284 | } |
718e3744 | 285 | } |
286 | ||
287 | /* Add connected IPv4 route to the interface. */ | |
d62a17ae | 288 | void connected_add_ipv4(struct interface *ifp, int flags, struct in_addr *addr, |
f93eee44 | 289 | uint16_t prefixlen, struct in_addr *broad, |
cde1af84 | 290 | const char *label, uint32_t metric) |
718e3744 | 291 | { |
d62a17ae | 292 | struct prefix_ipv4 *p; |
293 | struct connected *ifc; | |
294 | ||
295 | if (ipv4_martian(addr)) | |
296 | return; | |
297 | ||
298 | /* Make connected structure. */ | |
299 | ifc = connected_new(); | |
300 | ifc->ifp = ifp; | |
301 | ifc->flags = flags; | |
cde1af84 | 302 | ifc->metric = metric; |
d62a17ae | 303 | /* If we get a notification from the kernel, |
304 | * we can safely assume the address is known to the kernel */ | |
305 | SET_FLAG(ifc->conf, ZEBRA_IFC_QUEUED); | |
306 | ||
307 | /* Allocate new connected address. */ | |
308 | p = prefix_ipv4_new(); | |
309 | p->family = AF_INET; | |
310 | p->prefix = *addr; | |
abffde07 DL |
311 | p->prefixlen = CHECK_FLAG(flags, ZEBRA_IFA_PEER) ? IPV4_MAX_PREFIXLEN |
312 | : prefixlen; | |
d62a17ae | 313 | ifc->address = (struct prefix *)p; |
314 | ||
315 | /* If there is broadcast or peer address. */ | |
316 | if (broad) { | |
317 | p = prefix_ipv4_new(); | |
318 | p->family = AF_INET; | |
319 | p->prefix = *broad; | |
320 | p->prefixlen = prefixlen; | |
321 | ifc->destination = (struct prefix *)p; | |
322 | ||
323 | /* validate the destination address */ | |
324 | if (CONNECTED_PEER(ifc)) { | |
325 | if (IPV4_ADDR_SAME(addr, broad)) | |
9df414fe | 326 | flog_warn( |
e914ccbe | 327 | EC_ZEBRA_IFACE_SAME_LOCAL_AS_PEER, |
d62a17ae | 328 | "warning: interface %s has same local and peer " |
329 | "address %s, routing protocols may malfunction", | |
330 | ifp->name, inet_ntoa(*addr)); | |
331 | } else { | |
332 | if (broad->s_addr | |
333 | != ipv4_broadcast_addr(addr->s_addr, prefixlen)) { | |
334 | char buf[2][INET_ADDRSTRLEN]; | |
335 | struct in_addr bcalc; | |
336 | bcalc.s_addr = ipv4_broadcast_addr(addr->s_addr, | |
337 | prefixlen); | |
9df414fe | 338 | flog_warn( |
e914ccbe | 339 | EC_ZEBRA_BCAST_ADDR_MISMATCH, |
d62a17ae | 340 | "warning: interface %s broadcast addr %s/%d != " |
341 | "calculated %s, routing protocols may malfunction", | |
342 | ifp->name, | |
343 | inet_ntop(AF_INET, broad, buf[0], | |
344 | sizeof(buf[0])), | |
345 | prefixlen, | |
346 | inet_ntop(AF_INET, &bcalc, buf[1], | |
347 | sizeof(buf[1]))); | |
348 | } | |
349 | } | |
350 | ||
351 | } else { | |
352 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_PEER)) { | |
9df414fe | 353 | zlog_debug( |
d62a17ae | 354 | "warning: %s called for interface %s " |
355 | "with peer flag set, but no peer address supplied", | |
356 | __func__, ifp->name); | |
357 | UNSET_FLAG(ifc->flags, ZEBRA_IFA_PEER); | |
358 | } | |
359 | ||
360 | /* no broadcast or destination address was supplied */ | |
361 | if ((prefixlen == IPV4_MAX_PREFIXLEN) && if_is_pointopoint(ifp)) | |
9df414fe | 362 | zlog_debug( |
d62a17ae | 363 | "warning: PtP interface %s with addr %s/%d needs a " |
364 | "peer address", | |
365 | ifp->name, inet_ntoa(*addr), prefixlen); | |
e4529636 AS |
366 | } |
367 | ||
d62a17ae | 368 | /* Label of this address. */ |
369 | if (label) | |
370 | ifc->label = XSTRDUP(MTYPE_CONNECTED_LABEL, label); | |
718e3744 | 371 | |
d62a17ae | 372 | /* For all that I know an IPv4 address is always ready when we receive |
373 | * the notification. So it should be safe to set the REAL flag here. */ | |
374 | SET_FLAG(ifc->conf, ZEBRA_IFC_REAL); | |
718e3744 | 375 | |
d62a17ae | 376 | connected_update(ifp, ifc); |
718e3744 | 377 | } |
378 | ||
11461c63 | 379 | void connected_down(struct interface *ifp, struct connected *ifc) |
718e3744 | 380 | { |
11461c63 | 381 | afi_t afi; |
d62a17ae | 382 | struct prefix p; |
fd36be7e | 383 | struct nexthop nh = { |
4a7371e9 DS |
384 | .type = NEXTHOP_TYPE_IFINDEX, |
385 | .ifindex = ifp->ifindex, | |
a36898e7 | 386 | .vrf_id = ifp->vrf_id, |
fd36be7e | 387 | }; |
56e78254 DS |
388 | struct zebra_vrf *zvrf; |
389 | ||
a36898e7 | 390 | zvrf = zebra_vrf_lookup_by_id(ifp->vrf_id); |
56e78254 DS |
391 | if (!zvrf) { |
392 | flog_err(EC_ZEBRA_VRF_NOT_FOUND, | |
393 | "%s: Received Up for interface but no associated zvrf: %d", | |
a36898e7 | 394 | __PRETTY_FUNCTION__, ifp->vrf_id); |
56e78254 DS |
395 | return; |
396 | } | |
718e3744 | 397 | |
d62a17ae | 398 | if (!CHECK_FLAG(ifc->conf, ZEBRA_IFC_REAL)) |
399 | return; | |
718e3744 | 400 | |
11461c63 | 401 | PREFIX_COPY(&p, CONNECTED_PREFIX(ifc)); |
718e3744 | 402 | |
d62a17ae | 403 | /* Apply mask to the network. */ |
404 | apply_mask(&p); | |
718e3744 | 405 | |
11461c63 DS |
406 | afi = family2afi(p.family); |
407 | ||
408 | switch (afi) { | |
409 | case AFI_IP: | |
410 | /* | |
411 | * In case of connected address is 0.0.0.0/0 we treat it tunnel | |
412 | * address. | |
413 | */ | |
414 | if (prefix_ipv4_any((struct prefix_ipv4 *)&p)) | |
415 | return; | |
416 | break; | |
417 | case AFI_IP6: | |
418 | if (IN6_IS_ADDR_UNSPECIFIED(&p.u.prefix6)) | |
419 | return; | |
420 | break; | |
421 | default: | |
422 | zlog_info("Unknown AFI: %s", afi2str(afi)); | |
423 | break; | |
424 | } | |
718e3744 | 425 | |
11461c63 DS |
426 | /* |
427 | * Same logic as for connected_up(): push the changes into the | |
428 | * head. | |
429 | */ | |
56e78254 DS |
430 | rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_CONNECT, |
431 | 0, 0, &p, NULL, &nh, zvrf->table_id, 0, 0, false); | |
718e3744 | 432 | |
56e78254 DS |
433 | rib_delete(afi, SAFI_MULTICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_CONNECT, |
434 | 0, 0, &p, NULL, &nh, zvrf->table_id, 0, 0, false); | |
42cb6b66 | 435 | |
11461c63 DS |
436 | if (IS_ZEBRA_DEBUG_RIB_DETAILED) { |
437 | char buf[PREFIX_STRLEN]; | |
438 | ||
996c9314 LB |
439 | zlog_debug( |
440 | "%u: IF %s IP %s address down, scheduling RIB processing", | |
56e78254 | 441 | zvrf->vrf->vrf_id, ifp->name, |
996c9314 | 442 | prefix2str(&p, buf, sizeof(buf))); |
11461c63 | 443 | } |
b84c7253 | 444 | |
56e78254 | 445 | rib_update(zvrf->vrf->vrf_id, RIB_UPDATE_IF_CHANGE); |
40c7bdb0 | 446 | |
d62a17ae | 447 | /* Schedule LSP forwarding entries for processing, if appropriate. */ |
56e78254 | 448 | if (zvrf->vrf->vrf_id == VRF_DEFAULT) { |
11461c63 DS |
449 | if (IS_ZEBRA_DEBUG_MPLS) { |
450 | char buf[PREFIX_STRLEN]; | |
451 | ||
996c9314 LB |
452 | zlog_debug( |
453 | "%u: IF %s IP %s address down, scheduling MPLS processing", | |
56e78254 | 454 | zvrf->vrf->vrf_id, ifp->name, |
996c9314 | 455 | prefix2str(&p, buf, sizeof(buf))); |
11461c63 | 456 | } |
56e78254 | 457 | mpls_mark_lsps_for_processing(zvrf, &p); |
d62a17ae | 458 | } |
718e3744 | 459 | } |
460 | ||
dc7cd304 DS |
461 | static void connected_delete_helper(struct connected *ifc, struct prefix *p) |
462 | { | |
463 | struct interface *ifp; | |
464 | ||
465 | if (!ifc) | |
466 | return; | |
467 | ifp = ifc->ifp; | |
468 | ||
469 | connected_withdraw(ifc); | |
470 | ||
471 | if (IS_ZEBRA_DEBUG_RIB_DETAILED) { | |
472 | char buf[PREFIX_STRLEN]; | |
473 | ||
996c9314 LB |
474 | zlog_debug( |
475 | "%u: IF %s IP %s address del, scheduling RIB processing", | |
a36898e7 | 476 | ifp->vrf_id, ifp->name, |
996c9314 | 477 | prefix2str(p, buf, sizeof(buf))); |
dc7cd304 | 478 | } |
a36898e7 | 479 | rib_update(ifp->vrf_id, RIB_UPDATE_IF_CHANGE); |
dc7cd304 DS |
480 | |
481 | /* Schedule LSP forwarding entries for processing, if appropriate. */ | |
a36898e7 | 482 | if (ifp->vrf_id == VRF_DEFAULT) { |
dc7cd304 DS |
483 | if (IS_ZEBRA_DEBUG_MPLS) { |
484 | char buf[PREFIX_STRLEN]; | |
485 | ||
996c9314 LB |
486 | zlog_debug( |
487 | "%u: IF %s IP %s address delete, scheduling MPLS processing", | |
a36898e7 | 488 | ifp->vrf_id, ifp->name, |
996c9314 | 489 | prefix2str(p, buf, sizeof(buf))); |
dc7cd304 | 490 | } |
a36898e7 | 491 | mpls_mark_lsps_for_processing(vrf_info_lookup(ifp->vrf_id), p); |
dc7cd304 DS |
492 | } |
493 | } | |
494 | ||
718e3744 | 495 | /* Delete connected IPv4 route to the interface. */ |
d62a17ae | 496 | void connected_delete_ipv4(struct interface *ifp, int flags, |
f93eee44 | 497 | struct in_addr *addr, uint16_t prefixlen, |
d62a17ae | 498 | struct in_addr *broad) |
718e3744 | 499 | { |
dc7cd304 | 500 | struct prefix p, d; |
d62a17ae | 501 | struct connected *ifc; |
502 | ||
dc7cd304 | 503 | memset(&p, 0, sizeof(struct prefix)); |
d62a17ae | 504 | p.family = AF_INET; |
dc7cd304 | 505 | p.u.prefix4 = *addr; |
abffde07 DL |
506 | p.prefixlen = CHECK_FLAG(flags, ZEBRA_IFA_PEER) ? IPV4_MAX_PREFIXLEN |
507 | : prefixlen; | |
508 | ||
509 | if (broad) { | |
dc7cd304 | 510 | memset(&d, 0, sizeof(struct prefix)); |
abffde07 | 511 | d.family = AF_INET; |
dc7cd304 | 512 | d.u.prefix4 = *broad; |
abffde07 | 513 | d.prefixlen = prefixlen; |
dc7cd304 | 514 | ifc = connected_check_ptp(ifp, &p, &d); |
abffde07 | 515 | } else |
dc7cd304 | 516 | ifc = connected_check_ptp(ifp, &p, NULL); |
d62a17ae | 517 | |
dc7cd304 | 518 | connected_delete_helper(ifc, &p); |
718e3744 | 519 | } |
520 | ||
718e3744 | 521 | /* Add connected IPv6 route to the interface. */ |
d62a17ae | 522 | void connected_add_ipv6(struct interface *ifp, int flags, struct in6_addr *addr, |
f93eee44 | 523 | struct in6_addr *broad, uint16_t prefixlen, |
cde1af84 | 524 | const char *label, uint32_t metric) |
718e3744 | 525 | { |
d62a17ae | 526 | struct prefix_ipv6 *p; |
527 | struct connected *ifc; | |
528 | ||
529 | if (ipv6_martian(addr)) | |
530 | return; | |
531 | ||
532 | /* Make connected structure. */ | |
533 | ifc = connected_new(); | |
534 | ifc->ifp = ifp; | |
535 | ifc->flags = flags; | |
cde1af84 | 536 | ifc->metric = metric; |
d62a17ae | 537 | /* If we get a notification from the kernel, |
538 | * we can safely assume the address is known to the kernel */ | |
539 | SET_FLAG(ifc->conf, ZEBRA_IFC_QUEUED); | |
540 | ||
541 | /* Allocate new connected address. */ | |
542 | p = prefix_ipv6_new(); | |
543 | p->family = AF_INET6; | |
544 | IPV6_ADDR_COPY(&p->prefix, addr); | |
545 | p->prefixlen = prefixlen; | |
546 | ifc->address = (struct prefix *)p; | |
547 | ||
f52d0a1a | 548 | if (broad) { |
60c0687a DS |
549 | p = prefix_ipv6_new(); |
550 | p->family = AF_INET6; | |
551 | IPV6_ADDR_COPY(&p->prefix, broad); | |
552 | p->prefixlen = prefixlen; | |
553 | ifc->destination = (struct prefix *)p; | |
f52d0a1a DS |
554 | } else { |
555 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_PEER)) { | |
9df414fe QY |
556 | zlog_debug( |
557 | "warning: %s called for interface %s with peer flag set, but no peer address supplied", | |
558 | __func__, ifp->name); | |
f52d0a1a DS |
559 | UNSET_FLAG(ifc->flags, ZEBRA_IFA_PEER); |
560 | } | |
60c0687a DS |
561 | } |
562 | ||
d62a17ae | 563 | /* Label of this address. */ |
564 | if (label) | |
565 | ifc->label = XSTRDUP(MTYPE_CONNECTED_LABEL, label); | |
566 | ||
567 | /* On Linux, we only get here when DAD is complete, therefore we can set | |
568 | * ZEBRA_IFC_REAL. | |
569 | * | |
570 | * On BSD, there currently doesn't seem to be a way to check for | |
571 | * completion of | |
572 | * DAD, so we replicate the old behaviour and set ZEBRA_IFC_REAL, | |
573 | * although DAD | |
574 | * might still be running. | |
575 | */ | |
576 | SET_FLAG(ifc->conf, ZEBRA_IFC_REAL); | |
577 | connected_update(ifp, ifc); | |
718e3744 | 578 | } |
579 | ||
d62a17ae | 580 | void connected_delete_ipv6(struct interface *ifp, struct in6_addr *address, |
f93eee44 | 581 | struct in6_addr *broad, uint16_t prefixlen) |
718e3744 | 582 | { |
60c0687a | 583 | struct prefix p, d; |
d62a17ae | 584 | struct connected *ifc; |
585 | ||
dc7cd304 | 586 | memset(&p, 0, sizeof(struct prefix)); |
d62a17ae | 587 | p.family = AF_INET6; |
dc7cd304 | 588 | memcpy(&p.u.prefix6, address, sizeof(struct in6_addr)); |
d62a17ae | 589 | p.prefixlen = prefixlen; |
590 | ||
60c0687a DS |
591 | if (broad) { |
592 | memset(&d, 0, sizeof(struct prefix)); | |
593 | d.family = AF_INET6; | |
a85297a7 | 594 | IPV6_ADDR_COPY(&d.u.prefix6, broad); |
60c0687a DS |
595 | d.prefixlen = prefixlen; |
596 | ifc = connected_check_ptp(ifp, &p, &d); | |
597 | } else | |
598 | ifc = connected_check_ptp(ifp, &p, NULL); | |
d62a17ae | 599 | |
dc7cd304 | 600 | connected_delete_helper(ifc, &p); |
718e3744 | 601 | } |
d44ca835 | 602 | |
d62a17ae | 603 | int connected_is_unnumbered(struct interface *ifp) |
d44ca835 | 604 | { |
d62a17ae | 605 | struct connected *connected; |
606 | struct listnode *node; | |
607 | ||
608 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
609 | if (CHECK_FLAG(connected->conf, ZEBRA_IFC_REAL) | |
610 | && connected->address->family == AF_INET) | |
611 | return CHECK_FLAG(connected->flags, | |
612 | ZEBRA_IFA_UNNUMBERED); | |
613 | } | |
e93a6fbb | 614 | return 1; |
d44ca835 | 615 | } |