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718e3744 | 1 | /* zebra client |
896014f4 DL |
2 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro |
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 | * | |
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 | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "stream.h" | |
25 | #include "network.h" | |
26 | #include "prefix.h" | |
27 | #include "log.h" | |
28 | #include "sockunion.h" | |
29 | #include "zclient.h" | |
30 | #include "routemap.h" | |
31 | #include "thread.h" | |
3f9c7369 | 32 | #include "queue.h" |
6e919709 | 33 | #include "memory.h" |
856ca177 | 34 | #include "lib/json.h" |
2376c3f2 | 35 | #include "lib/bfd.h" |
039f3a34 | 36 | #include "filter.h" |
cd1964ff | 37 | #include "mpls.h" |
128ea8ab | 38 | #include "vxlan.h" |
718e3744 | 39 | |
40 | #include "bgpd/bgpd.h" | |
41 | #include "bgpd/bgp_route.h" | |
42 | #include "bgpd/bgp_attr.h" | |
43 | #include "bgpd/bgp_nexthop.h" | |
44 | #include "bgpd/bgp_zebra.h" | |
45 | #include "bgpd/bgp_fsm.h" | |
a39275d7 | 46 | #include "bgpd/bgp_debug.h" |
8196f13d | 47 | #include "bgpd/bgp_mpath.h" |
fb018d25 | 48 | #include "bgpd/bgp_nexthop.h" |
ffd0c037 | 49 | #include "bgpd/bgp_nht.h" |
8c4f6381 | 50 | #include "bgpd/bgp_bfd.h" |
cd1964ff | 51 | #include "bgpd/bgp_label.h" |
65efcfce | 52 | #if ENABLE_BGP_VNC |
d62a17ae | 53 | #include "bgpd/rfapi/rfapi_backend.h" |
54 | #include "bgpd/rfapi/vnc_export_bgp.h" | |
65efcfce | 55 | #endif |
128ea8ab | 56 | #include "bgpd/bgp_evpn.h" |
6b0655a2 | 57 | |
718e3744 | 58 | /* All information about zebra. */ |
228da428 | 59 | struct zclient *zclient = NULL; |
718e3744 | 60 | |
ad4cbda1 | 61 | /* Can we install into zebra? */ |
d62a17ae | 62 | static inline int bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 63 | { |
d62a17ae | 64 | if (zclient->sock <= 0) |
65 | return 0; | |
ad4cbda1 | 66 | |
d62a17ae | 67 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) |
68 | return 0; | |
ad4cbda1 | 69 | |
d62a17ae | 70 | return 1; |
ad4cbda1 | 71 | } |
72 | ||
afbb1c59 LB |
73 | int zclient_num_connects; |
74 | ||
18a6dce6 | 75 | /* Router-id update message from zebra. */ |
d62a17ae | 76 | static int bgp_router_id_update(int command, struct zclient *zclient, |
77 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 78 | { |
d62a17ae | 79 | struct prefix router_id; |
718e3744 | 80 | |
d62a17ae | 81 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 82 | |
d62a17ae | 83 | if (BGP_DEBUG(zebra, ZEBRA)) { |
84 | char buf[PREFIX2STR_BUFFER]; | |
85 | prefix2str(&router_id, buf, sizeof(buf)); | |
86 | zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf); | |
87 | } | |
a39275d7 | 88 | |
d62a17ae | 89 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
90 | return 0; | |
718e3744 | 91 | } |
92 | ||
fb018d25 | 93 | /* Nexthop update message from zebra. */ |
d62a17ae | 94 | static int bgp_read_nexthop_update(int command, struct zclient *zclient, |
95 | zebra_size_t length, vrf_id_t vrf_id) | |
fb018d25 | 96 | { |
d62a17ae | 97 | bgp_parse_nexthop_update(command, vrf_id); |
98 | return 0; | |
078430f6 DS |
99 | } |
100 | ||
d62a17ae | 101 | static int bgp_read_import_check_update(int command, struct zclient *zclient, |
102 | zebra_size_t length, vrf_id_t vrf_id) | |
078430f6 | 103 | { |
d62a17ae | 104 | bgp_parse_nexthop_update(command, vrf_id); |
105 | return 0; | |
fb018d25 DS |
106 | } |
107 | ||
4a04e5f7 | 108 | /* Set or clear interface on which unnumbered neighbor is configured. This |
109 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
110 | * interface. | |
111 | */ | |
d62a17ae | 112 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
113 | struct interface *upd_ifp) | |
4a04e5f7 | 114 | { |
d62a17ae | 115 | struct listnode *node, *nnode; |
116 | struct peer *peer; | |
117 | ||
118 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
119 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
120 | if (upd_ifp) { | |
121 | peer->ifp = upd_ifp; | |
122 | bgp_zebra_initiate_radv(bgp, peer); | |
123 | } else { | |
124 | bgp_zebra_terminate_radv(bgp, peer); | |
125 | peer->ifp = upd_ifp; | |
126 | } | |
127 | } | |
128 | } | |
4a04e5f7 | 129 | } |
130 | ||
d62a17ae | 131 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
132 | zebra_size_t length) | |
cd1964ff | 133 | { |
d62a17ae | 134 | bgp_parse_fec_update(); |
135 | return 0; | |
cd1964ff DS |
136 | } |
137 | ||
d62a17ae | 138 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 139 | { |
d62a17ae | 140 | struct listnode *node, *nnode; |
141 | struct peer *peer; | |
142 | ||
143 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
144 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
145 | && peer->status != Established) { | |
146 | if (peer_active(peer)) | |
147 | BGP_EVENT_ADD(peer, BGP_Stop); | |
148 | BGP_EVENT_ADD(peer, BGP_Start); | |
149 | } | |
150 | } | |
a80beece DS |
151 | } |
152 | ||
d62a17ae | 153 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 154 | { |
d62a17ae | 155 | struct listnode *node; |
156 | struct connected *connected; | |
157 | struct interface *ifp; | |
158 | struct prefix *p; | |
159 | ||
160 | /* Kick-off the FSM for any relevant peers only if there is a | |
161 | * valid local address on the interface. | |
162 | */ | |
163 | ifp = ifc->ifp; | |
164 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
165 | p = connected->address; | |
166 | if (p->family == AF_INET6 | |
167 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
168 | break; | |
169 | } | |
170 | if (!connected) | |
171 | return; | |
172 | ||
173 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
174 | } |
175 | ||
d62a17ae | 176 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
177 | int del) | |
a80beece | 178 | { |
d62a17ae | 179 | struct listnode *node, *nnode; |
180 | struct peer *peer; | |
181 | struct interface *ifp; | |
182 | ||
183 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
184 | if (peer->conf_if | |
185 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
186 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
187 | BGP_EVENT_ADD(peer, BGP_Stop); | |
188 | } | |
189 | } | |
190 | /* Free neighbor also, if we're asked to. */ | |
191 | if (del) { | |
192 | ifp = ifc->ifp; | |
193 | listnode_delete(ifp->nbr_connected, ifc); | |
194 | nbr_connected_free(ifc); | |
195 | } | |
a80beece DS |
196 | } |
197 | ||
718e3744 | 198 | /* Inteface addition message from zebra. */ |
d62a17ae | 199 | static int bgp_interface_add(int command, struct zclient *zclient, |
200 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 201 | { |
d62a17ae | 202 | struct interface *ifp; |
203 | struct bgp *bgp; | |
718e3744 | 204 | |
d62a17ae | 205 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
206 | if (!ifp) // unexpected | |
207 | return 0; | |
718e3744 | 208 | |
d62a17ae | 209 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
210 | zlog_debug("Rx Intf add VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 211 | |
d62a17ae | 212 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
213 | if (!bgp) | |
214 | return 0; | |
4a04e5f7 | 215 | |
d62a17ae | 216 | bgp_update_interface_nbrs(bgp, ifp, ifp); |
217 | return 0; | |
718e3744 | 218 | } |
219 | ||
d62a17ae | 220 | static int bgp_interface_delete(int command, struct zclient *zclient, |
221 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 222 | { |
d62a17ae | 223 | struct stream *s; |
224 | struct interface *ifp; | |
225 | struct bgp *bgp; | |
718e3744 | 226 | |
2f9123e0 DS |
227 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
228 | if (!bgp) | |
229 | return 0; | |
230 | ||
d62a17ae | 231 | s = zclient->ibuf; |
232 | ifp = zebra_interface_state_read(s, vrf_id); | |
233 | if (!ifp) /* This may happen if we've just unregistered for a VRF. */ | |
234 | return 0; | |
a4499b83 | 235 | |
d62a17ae | 236 | if (BGP_DEBUG(zebra, ZEBRA)) |
237 | zlog_debug("Rx Intf del VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 238 | |
d62a17ae | 239 | bgp_update_interface_nbrs(bgp, ifp, NULL); |
64745052 | 240 | |
ff880b78 | 241 | if_set_index(ifp, IFINDEX_INTERNAL); |
d62a17ae | 242 | return 0; |
718e3744 | 243 | } |
244 | ||
d62a17ae | 245 | static int bgp_interface_up(int command, struct zclient *zclient, |
246 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 247 | { |
d62a17ae | 248 | struct stream *s; |
249 | struct interface *ifp; | |
250 | struct connected *c; | |
251 | struct nbr_connected *nc; | |
252 | struct listnode *node, *nnode; | |
253 | struct bgp *bgp; | |
6aeb9e78 | 254 | |
2f9123e0 DS |
255 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
256 | if (!bgp) | |
257 | return 0; | |
258 | ||
d62a17ae | 259 | s = zclient->ibuf; |
260 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 261 | |
d62a17ae | 262 | if (!ifp) |
263 | return 0; | |
718e3744 | 264 | |
d62a17ae | 265 | if (BGP_DEBUG(zebra, ZEBRA)) |
266 | zlog_debug("Rx Intf up VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 267 | |
d62a17ae | 268 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
269 | bgp_connected_add(bgp, c); | |
718e3744 | 270 | |
d62a17ae | 271 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
272 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 273 | |
d62a17ae | 274 | return 0; |
718e3744 | 275 | } |
276 | ||
d62a17ae | 277 | static int bgp_interface_down(int command, struct zclient *zclient, |
278 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 279 | { |
d62a17ae | 280 | struct stream *s; |
281 | struct interface *ifp; | |
282 | struct connected *c; | |
283 | struct nbr_connected *nc; | |
284 | struct listnode *node, *nnode; | |
285 | struct bgp *bgp; | |
6aeb9e78 | 286 | |
2f9123e0 DS |
287 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
288 | if (!bgp) | |
289 | return 0; | |
290 | ||
d62a17ae | 291 | s = zclient->ibuf; |
292 | ifp = zebra_interface_state_read(s, vrf_id); | |
293 | if (!ifp) | |
294 | return 0; | |
718e3744 | 295 | |
d62a17ae | 296 | if (BGP_DEBUG(zebra, ZEBRA)) |
297 | zlog_debug("Rx Intf down VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 298 | |
d62a17ae | 299 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
300 | bgp_connected_delete(bgp, c); | |
718e3744 | 301 | |
d62a17ae | 302 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
303 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 304 | |
d62a17ae | 305 | /* Fast external-failover */ |
306 | { | |
307 | struct peer *peer; | |
718e3744 | 308 | |
d62a17ae | 309 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) |
310 | return 0; | |
718e3744 | 311 | |
d62a17ae | 312 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 313 | #if defined(HAVE_CUMULUS) |
d62a17ae | 314 | /* Take down directly connected EBGP peers as well as |
315 | * 1-hop BFD | |
316 | * tracked (directly connected) IBGP peers. | |
317 | */ | |
318 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1) | |
319 | && (!peer->bfd_info | |
320 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 321 | #else |
d62a17ae | 322 | /* Take down directly connected EBGP peers */ |
323 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
8c4f6381 | 324 | #endif |
d62a17ae | 325 | continue; |
718e3744 | 326 | |
d62a17ae | 327 | if (ifp == peer->nexthop.ifp) { |
328 | BGP_EVENT_ADD(peer, BGP_Stop); | |
329 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
330 | } | |
331 | } | |
332 | } | |
718e3744 | 333 | |
d62a17ae | 334 | return 0; |
718e3744 | 335 | } |
336 | ||
d62a17ae | 337 | static int bgp_interface_address_add(int command, struct zclient *zclient, |
338 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 339 | { |
d62a17ae | 340 | struct connected *ifc; |
2f9123e0 DS |
341 | struct bgp *bgp; |
342 | ||
343 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
344 | if (!bgp) | |
345 | return 0; | |
d62a17ae | 346 | |
347 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); | |
348 | ||
349 | if (ifc == NULL) | |
350 | return 0; | |
351 | ||
352 | if (bgp_debug_zebra(ifc->address)) { | |
353 | char buf[PREFIX2STR_BUFFER]; | |
354 | prefix2str(ifc->address, buf, sizeof(buf)); | |
355 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
356 | ifc->ifp->name, buf); | |
357 | } | |
358 | ||
359 | if (if_is_operative(ifc->ifp)) { | |
d62a17ae | 360 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 361 | |
d62a17ae | 362 | /* If we have learnt of any neighbors on this interface, |
363 | * check to kick off any BGP interface-based neighbors, | |
364 | * but only if this is a link-local address. | |
365 | */ | |
366 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
367 | && !list_isempty(ifc->ifp->nbr_connected)) | |
368 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
369 | } | |
370 | ||
371 | return 0; | |
718e3744 | 372 | } |
373 | ||
d62a17ae | 374 | static int bgp_interface_address_delete(int command, struct zclient *zclient, |
375 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 376 | { |
d62a17ae | 377 | struct connected *ifc; |
378 | struct bgp *bgp; | |
6aeb9e78 | 379 | |
2f9123e0 DS |
380 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
381 | if (!bgp) | |
382 | return 0; | |
383 | ||
d62a17ae | 384 | ifc = zebra_interface_address_read(command, zclient->ibuf, vrf_id); |
718e3744 | 385 | |
d62a17ae | 386 | if (ifc == NULL) |
387 | return 0; | |
718e3744 | 388 | |
d62a17ae | 389 | if (bgp_debug_zebra(ifc->address)) { |
390 | char buf[PREFIX2STR_BUFFER]; | |
391 | prefix2str(ifc->address, buf, sizeof(buf)); | |
392 | zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id, | |
393 | ifc->ifp->name, buf); | |
394 | } | |
a39275d7 | 395 | |
d62a17ae | 396 | if (if_is_operative(ifc->ifp)) { |
2f9123e0 | 397 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 398 | } |
718e3744 | 399 | |
d62a17ae | 400 | connected_free(ifc); |
718e3744 | 401 | |
d62a17ae | 402 | return 0; |
718e3744 | 403 | } |
404 | ||
d62a17ae | 405 | static int bgp_interface_nbr_address_add(int command, struct zclient *zclient, |
406 | zebra_size_t length, vrf_id_t vrf_id) | |
a80beece | 407 | { |
d62a17ae | 408 | struct nbr_connected *ifc = NULL; |
409 | struct bgp *bgp; | |
410 | ||
411 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); | |
412 | ||
413 | if (ifc == NULL) | |
414 | return 0; | |
415 | ||
416 | if (bgp_debug_zebra(ifc->address)) { | |
417 | char buf[PREFIX2STR_BUFFER]; | |
418 | prefix2str(ifc->address, buf, sizeof(buf)); | |
419 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id, | |
420 | ifc->ifp->name, buf); | |
421 | } | |
422 | ||
423 | if (if_is_operative(ifc->ifp)) { | |
424 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
425 | if (bgp) | |
426 | bgp_nbr_connected_add(bgp, ifc); | |
427 | } | |
428 | ||
429 | return 0; | |
a80beece DS |
430 | } |
431 | ||
d62a17ae | 432 | static int bgp_interface_nbr_address_delete(int command, |
433 | struct zclient *zclient, | |
434 | zebra_size_t length, | |
435 | vrf_id_t vrf_id) | |
a80beece | 436 | { |
d62a17ae | 437 | struct nbr_connected *ifc = NULL; |
438 | struct bgp *bgp; | |
6aeb9e78 | 439 | |
d62a17ae | 440 | ifc = zebra_interface_nbr_address_read(command, zclient->ibuf, vrf_id); |
a80beece | 441 | |
d62a17ae | 442 | if (ifc == NULL) |
443 | return 0; | |
a80beece | 444 | |
d62a17ae | 445 | if (bgp_debug_zebra(ifc->address)) { |
446 | char buf[PREFIX2STR_BUFFER]; | |
447 | prefix2str(ifc->address, buf, sizeof(buf)); | |
448 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id, | |
449 | ifc->ifp->name, buf); | |
450 | } | |
a80beece | 451 | |
d62a17ae | 452 | if (if_is_operative(ifc->ifp)) { |
453 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
454 | if (bgp) | |
455 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
456 | } | |
a80beece | 457 | |
d62a17ae | 458 | nbr_connected_free(ifc); |
a80beece | 459 | |
d62a17ae | 460 | return 0; |
a80beece DS |
461 | } |
462 | ||
bfcd43b2 | 463 | /* VRF update for an interface. */ |
d62a17ae | 464 | static int bgp_interface_vrf_update(int command, struct zclient *zclient, |
465 | zebra_size_t length, vrf_id_t vrf_id) | |
bfcd43b2 | 466 | { |
d62a17ae | 467 | struct interface *ifp; |
468 | vrf_id_t new_vrf_id; | |
469 | struct connected *c; | |
470 | struct nbr_connected *nc; | |
471 | struct listnode *node, *nnode; | |
472 | struct bgp *bgp; | |
bfcd43b2 | 473 | |
d62a17ae | 474 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
475 | &new_vrf_id); | |
476 | if (!ifp) | |
477 | return 0; | |
bfcd43b2 | 478 | |
d62a17ae | 479 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
480 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
481 | ifp->name, new_vrf_id); | |
bfcd43b2 | 482 | |
d62a17ae | 483 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
484 | if (!bgp) | |
485 | return 0; | |
bfcd43b2 | 486 | |
d62a17ae | 487 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
488 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 489 | |
d62a17ae | 490 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
491 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 492 | |
d62a17ae | 493 | /* Fast external-failover */ |
494 | { | |
495 | struct peer *peer; | |
bfcd43b2 | 496 | |
d62a17ae | 497 | if (CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) |
498 | return 0; | |
bfcd43b2 | 499 | |
d62a17ae | 500 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
501 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
502 | continue; | |
bfcd43b2 | 503 | |
d62a17ae | 504 | if (ifp == peer->nexthop.ifp) |
505 | BGP_EVENT_ADD(peer, BGP_Stop); | |
506 | } | |
507 | } | |
bfcd43b2 | 508 | |
d62a17ae | 509 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 510 | |
d62a17ae | 511 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
512 | if (!bgp) | |
513 | return 0; | |
bfcd43b2 | 514 | |
d62a17ae | 515 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
516 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 517 | |
d62a17ae | 518 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
519 | bgp_nbr_connected_add(bgp, nc); | |
520 | return 0; | |
bfcd43b2 | 521 | } |
522 | ||
718e3744 | 523 | /* Zebra route add and delete treatment. */ |
74489921 RW |
524 | static int zebra_read_route(int command, struct zclient *zclient, |
525 | zebra_size_t length, vrf_id_t vrf_id) | |
718e3744 | 526 | { |
9de1f7ff | 527 | enum nexthop_types_t nhtype; |
74489921 RW |
528 | struct zapi_route api; |
529 | union g_addr nexthop; | |
9de1f7ff | 530 | ifindex_t ifindex; |
74489921 | 531 | int add, i; |
d62a17ae | 532 | struct bgp *bgp; |
533 | ||
534 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
535 | if (!bgp) | |
536 | return 0; | |
537 | ||
74489921 RW |
538 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
539 | return -1; | |
d62a17ae | 540 | |
74489921 RW |
541 | /* we completely ignore srcdest routes for now. */ |
542 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
543 | return 0; | |
d62a17ae | 544 | |
74489921 RW |
545 | /* ignore link-local address. */ |
546 | if (api.prefix.family == AF_INET6 | |
547 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
548 | return 0; | |
d62a17ae | 549 | |
74489921 RW |
550 | nexthop = api.nexthops[0].gate; |
551 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 552 | nhtype = api.nexthops[0].type; |
d62a17ae | 553 | |
74489921 RW |
554 | add = (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
555 | if (add) { | |
d62a17ae | 556 | /* |
557 | * The ADD message is actually an UPDATE and there is no | |
558 | * explicit DEL | |
559 | * for a prior redistributed route, if any. So, perform an | |
560 | * implicit | |
561 | * DEL processing for the same redistributed route from any | |
562 | * other | |
563 | * source type. | |
564 | */ | |
565 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
566 | if (i != api.type) | |
74489921 | 567 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 568 | api.instance); |
569 | } | |
570 | ||
571 | /* Now perform the add/update. */ | |
74489921 | 572 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
573 | nhtype, api.metric, api.type, api.instance, |
574 | api.tag); | |
d62a17ae | 575 | } else { |
74489921 RW |
576 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
577 | api.instance); | |
a39275d7 | 578 | } |
d62a17ae | 579 | |
74489921 RW |
580 | if (bgp_debug_zebra(&api.prefix)) { |
581 | char buf[2][PREFIX_STRLEN]; | |
582 | ||
583 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
584 | inet_ntop(api.prefix.family, &nexthop, buf[1], sizeof(buf[1])); | |
585 | zlog_debug( | |
586 | "Rx route %s VRF %u %s[%d] %s " | |
587 | "nexthop %s metric %u tag %" ROUTE_TAG_PRI, | |
588 | (add) ? "add" : "delete", vrf_id, | |
589 | zebra_route_string(api.type), api.instance, buf[0], | |
590 | buf[1], api.metric, api.tag); | |
d62a17ae | 591 | } |
592 | ||
593 | return 0; | |
718e3744 | 594 | } |
6b0655a2 | 595 | |
d62a17ae | 596 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 597 | { |
f4e14fdb | 598 | struct vrf *vrf; |
d62a17ae | 599 | struct listnode *cnode; |
600 | struct interface *ifp; | |
601 | struct connected *connected; | |
602 | struct prefix_ipv4 p; | |
603 | struct prefix *cp; | |
604 | ||
f4e14fdb RW |
605 | vrf = vrf_lookup_by_id(vrf_id); |
606 | if (!vrf) | |
607 | return NULL; | |
608 | ||
d62a17ae | 609 | p.family = AF_INET; |
610 | p.prefix = *addr; | |
611 | p.prefixlen = IPV4_MAX_BITLEN; | |
612 | ||
451fda4f | 613 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 614 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
615 | cp = connected->address; | |
616 | ||
617 | if (cp->family == AF_INET) | |
618 | if (prefix_match(cp, (struct prefix *)&p)) | |
619 | return ifp; | |
620 | } | |
718e3744 | 621 | } |
d62a17ae | 622 | return NULL; |
718e3744 | 623 | } |
624 | ||
d62a17ae | 625 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 626 | { |
f4e14fdb | 627 | struct vrf *vrf; |
d62a17ae | 628 | struct listnode *cnode; |
629 | struct interface *ifp; | |
630 | struct connected *connected; | |
631 | struct prefix *cp; | |
632 | ||
f4e14fdb RW |
633 | vrf = vrf_lookup_by_id(vrf_id); |
634 | if (!vrf) | |
635 | return NULL; | |
636 | ||
451fda4f | 637 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 638 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
639 | cp = connected->address; | |
640 | ||
641 | if (cp->family == AF_INET) | |
642 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
643 | return ifp; | |
644 | } | |
718e3744 | 645 | } |
d62a17ae | 646 | return NULL; |
718e3744 | 647 | } |
648 | ||
d62a17ae | 649 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
650 | vrf_id_t vrf_id) | |
718e3744 | 651 | { |
f4e14fdb | 652 | struct vrf *vrf; |
d62a17ae | 653 | struct listnode *cnode; |
654 | struct interface *ifp; | |
655 | struct connected *connected; | |
656 | struct prefix_ipv6 p; | |
657 | struct prefix *cp; | |
658 | ||
f4e14fdb RW |
659 | vrf = vrf_lookup_by_id(vrf_id); |
660 | if (!vrf) | |
661 | return NULL; | |
662 | ||
d62a17ae | 663 | p.family = AF_INET6; |
664 | p.prefix = *addr; | |
665 | p.prefixlen = IPV6_MAX_BITLEN; | |
666 | ||
451fda4f | 667 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 668 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
669 | cp = connected->address; | |
670 | ||
671 | if (cp->family == AF_INET6) | |
672 | if (prefix_match(cp, (struct prefix *)&p)) { | |
673 | if (IN6_IS_ADDR_LINKLOCAL( | |
674 | &cp->u.prefix6)) { | |
675 | if (ifindex == ifp->ifindex) | |
676 | return ifp; | |
677 | } else | |
678 | return ifp; | |
679 | } | |
680 | } | |
718e3744 | 681 | } |
d62a17ae | 682 | return NULL; |
718e3744 | 683 | } |
684 | ||
d62a17ae | 685 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
686 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 687 | { |
f4e14fdb | 688 | struct vrf *vrf; |
d62a17ae | 689 | struct listnode *cnode; |
690 | struct interface *ifp; | |
691 | struct connected *connected; | |
692 | struct prefix *cp; | |
693 | ||
f4e14fdb RW |
694 | vrf = vrf_lookup_by_id(vrf_id); |
695 | if (!vrf) | |
696 | return NULL; | |
697 | ||
451fda4f | 698 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 699 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
700 | cp = connected->address; | |
701 | ||
702 | if (cp->family == AF_INET6) | |
703 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
704 | if (IN6_IS_ADDR_LINKLOCAL( | |
705 | &cp->u.prefix6)) { | |
706 | if (ifindex == ifp->ifindex) | |
707 | return ifp; | |
708 | } else | |
709 | return ifp; | |
710 | } | |
711 | } | |
718e3744 | 712 | } |
d62a17ae | 713 | return NULL; |
718e3744 | 714 | } |
715 | ||
d62a17ae | 716 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 717 | { |
d62a17ae | 718 | struct listnode *cnode; |
719 | struct connected *connected; | |
720 | struct prefix *cp; | |
721 | ||
722 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
723 | cp = connected->address; | |
724 | ||
725 | if (cp->family == AF_INET6) | |
726 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
727 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
728 | return 1; | |
729 | } | |
730 | } | |
731 | return 0; | |
718e3744 | 732 | } |
733 | ||
d62a17ae | 734 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 735 | { |
d62a17ae | 736 | struct listnode *cnode; |
737 | struct connected *connected; | |
738 | struct prefix *cp; | |
739 | ||
740 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
741 | cp = connected->address; | |
742 | ||
743 | if (cp->family == AF_INET6) | |
744 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
745 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
746 | return 1; | |
747 | } | |
748 | } | |
749 | return 0; | |
718e3744 | 750 | } |
718e3744 | 751 | |
d62a17ae | 752 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 753 | { |
d62a17ae | 754 | struct listnode *cnode; |
755 | struct connected *connected; | |
756 | struct prefix *cp; | |
757 | ||
758 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
759 | cp = connected->address; | |
760 | if ((cp->family == AF_INET) | |
761 | && !ipv4_martian(&(cp->u.prefix4))) { | |
762 | *addr = cp->u.prefix4; | |
763 | return 1; | |
764 | } | |
765 | } | |
766 | return 0; | |
6ee06fa9 PM |
767 | } |
768 | ||
d62a17ae | 769 | int bgp_nexthop_set(union sockunion *local, union sockunion *remote, |
770 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 771 | { |
d62a17ae | 772 | int ret = 0; |
773 | struct interface *ifp = NULL; | |
774 | ||
775 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
776 | ||
777 | if (!local) | |
778 | return -1; | |
779 | if (!remote) | |
780 | return -1; | |
781 | ||
782 | if (local->sa.sa_family == AF_INET) { | |
783 | nexthop->v4 = local->sin.sin_addr; | |
784 | if (peer->update_if) | |
785 | ifp = if_lookup_by_name(peer->update_if, | |
786 | peer->bgp->vrf_id); | |
787 | else | |
788 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
789 | peer->bgp->vrf_id); | |
718e3744 | 790 | } |
d62a17ae | 791 | if (local->sa.sa_family == AF_INET6) { |
792 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
793 | if (peer->conf_if || peer->ifname) | |
794 | ifp = if_lookup_by_name(peer->conf_if | |
795 | ? peer->conf_if | |
796 | : peer->ifname, | |
797 | peer->bgp->vrf_id); | |
798 | } else if (peer->update_if) | |
799 | ifp = if_lookup_by_name(peer->update_if, | |
800 | peer->bgp->vrf_id); | |
801 | else | |
802 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
803 | local->sin6.sin6_scope_id, | |
804 | peer->bgp->vrf_id); | |
718e3744 | 805 | } |
d62a17ae | 806 | |
807 | if (!ifp) | |
808 | return -1; | |
809 | ||
810 | nexthop->ifp = ifp; | |
811 | ||
812 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
813 | if (local->sa.sa_family == AF_INET) { | |
814 | /* IPv6 nexthop*/ | |
815 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
816 | ||
817 | if (!ret) { | |
818 | /* There is no global nexthop. Use link-local address as | |
819 | * both the | |
820 | * global and link-local nexthop. In this scenario, the | |
821 | * expectation | |
822 | * for interop is that the network admin would use a | |
823 | * route-map to | |
824 | * specify the global IPv6 nexthop. | |
825 | */ | |
826 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
827 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
828 | IPV6_MAX_BYTELEN); | |
829 | } else | |
830 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
831 | ||
832 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
833 | peer->shared_network = 1; | |
834 | else | |
835 | peer->shared_network = 0; | |
718e3744 | 836 | } |
718e3744 | 837 | |
d62a17ae | 838 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
839 | if (local->sa.sa_family == AF_INET6) { | |
840 | struct interface *direct = NULL; | |
841 | ||
842 | /* IPv4 nexthop. */ | |
843 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
844 | if (!ret && peer->local_id.s_addr) | |
845 | nexthop->v4 = peer->local_id; | |
846 | ||
847 | /* Global address*/ | |
848 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
849 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
850 | IPV6_MAX_BYTELEN); | |
851 | ||
852 | /* If directory connected set link-local address. */ | |
853 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
854 | remote->sin6.sin6_scope_id, | |
855 | peer->bgp->vrf_id); | |
856 | if (direct) | |
857 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
858 | } else | |
859 | /* Link-local address. */ | |
860 | { | |
861 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
862 | ||
863 | /* If there is no global address. Set link-local | |
864 | address as | |
865 | global. I know this break RFC specification... */ | |
866 | /* In this scenario, the expectation for interop is that | |
867 | * the | |
868 | * network admin would use a route-map to specify the | |
869 | * global | |
870 | * IPv6 nexthop. | |
871 | */ | |
872 | if (!ret) | |
873 | memcpy(&nexthop->v6_global, | |
874 | &local->sin6.sin6_addr, | |
875 | IPV6_MAX_BYTELEN); | |
876 | /* Always set the link-local address */ | |
877 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
878 | IPV6_MAX_BYTELEN); | |
879 | } | |
880 | ||
881 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
882 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
883 | remote->sin6.sin6_scope_id, | |
884 | peer->bgp->vrf_id)) | |
885 | peer->shared_network = 1; | |
886 | else | |
887 | peer->shared_network = 0; | |
888 | } | |
718e3744 | 889 | |
d62a17ae | 890 | /* KAME stack specific treatment. */ |
718e3744 | 891 | #ifdef KAME |
d62a17ae | 892 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
893 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
894 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
895 | } | |
896 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
897 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
898 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
899 | } | |
718e3744 | 900 | #endif /* KAME */ |
e33a4880 | 901 | |
d62a17ae | 902 | /* If we have identified the local interface, there is no error for now. |
903 | */ | |
904 | return 0; | |
718e3744 | 905 | } |
906 | ||
d62a17ae | 907 | static struct in6_addr *bgp_info_to_ipv6_nexthop(struct bgp_info *info) |
73ac8160 | 908 | { |
d62a17ae | 909 | struct in6_addr *nexthop = NULL; |
910 | ||
911 | /* Only global address nexthop exists. */ | |
912 | if (info->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL) | |
913 | nexthop = &info->attr->mp_nexthop_global; | |
914 | ||
915 | /* If both global and link-local address present. */ | |
916 | if (info->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) { | |
917 | /* Check if route-map is set to prefer global over link-local */ | |
918 | if (info->attr->mp_nexthop_prefer_global) | |
919 | nexthop = &info->attr->mp_nexthop_global; | |
920 | else { | |
921 | /* Workaround for Cisco's nexthop bug. */ | |
922 | if (IN6_IS_ADDR_UNSPECIFIED( | |
923 | &info->attr->mp_nexthop_global) | |
924 | && info->peer->su_remote->sa.sa_family == AF_INET6) | |
925 | nexthop = | |
926 | &info->peer->su_remote->sin6.sin6_addr; | |
927 | else | |
928 | nexthop = &info->attr->mp_nexthop_local; | |
929 | } | |
930 | } | |
931 | ||
932 | return nexthop; | |
73ac8160 DS |
933 | } |
934 | ||
d62a17ae | 935 | static int bgp_table_map_apply(struct route_map *map, struct prefix *p, |
936 | struct bgp_info *info) | |
73ac8160 | 937 | { |
b4cb15c6 DL |
938 | route_map_result_t ret; |
939 | ||
940 | ret = route_map_apply(map, p, RMAP_BGP, info); | |
941 | bgp_attr_flush(info->attr); | |
942 | ||
943 | if (ret != RMAP_DENYMATCH) | |
d62a17ae | 944 | return 1; |
945 | ||
946 | if (bgp_debug_zebra(p)) { | |
947 | if (p->family == AF_INET) { | |
948 | char buf[2][INET_ADDRSTRLEN]; | |
949 | zlog_debug( | |
950 | "Zebra rmap deny: IPv4 route %s/%d nexthop %s", | |
951 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], | |
952 | sizeof(buf[0])), | |
953 | p->prefixlen, | |
954 | inet_ntop(AF_INET, &info->attr->nexthop, buf[1], | |
955 | sizeof(buf[1]))); | |
956 | } | |
957 | if (p->family == AF_INET6) { | |
958 | char buf[2][INET6_ADDRSTRLEN]; | |
959 | zlog_debug( | |
960 | "Zebra rmap deny: IPv6 route %s/%d nexthop %s", | |
961 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], | |
962 | sizeof(buf[0])), | |
963 | p->prefixlen, | |
964 | inet_ntop(AF_INET6, | |
965 | bgp_info_to_ipv6_nexthop(info), | |
966 | buf[1], sizeof(buf[1]))); | |
967 | } | |
968 | } | |
969 | return 0; | |
73ac8160 DS |
970 | } |
971 | ||
d62a17ae | 972 | void bgp_zebra_announce(struct bgp_node *rn, struct prefix *p, |
973 | struct bgp_info *info, struct bgp *bgp, afi_t afi, | |
974 | safi_t safi) | |
718e3744 | 975 | { |
9913029c RW |
976 | struct zapi_route api; |
977 | struct zapi_nexthop *api_nh; | |
2ad4f093 | 978 | int nh_family; |
a74e593b | 979 | unsigned int valid_nh_count = 0; |
2ad4f093 | 980 | int has_valid_label = 0; |
d62a17ae | 981 | u_char distance; |
982 | struct peer *peer; | |
983 | struct bgp_info *mpinfo; | |
984 | u_int32_t metric; | |
b4cb15c6 | 985 | struct attr local_attr; |
d62a17ae | 986 | struct bgp_info local_info; |
b4cb15c6 | 987 | struct bgp_info *mpinfo_cp = &local_info; |
d62a17ae | 988 | route_tag_t tag; |
989 | mpls_label_t label; | |
990 | ||
991 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
992 | * know of this instance. | |
993 | */ | |
994 | if (!bgp_install_info_to_zebra(bgp)) | |
995 | return; | |
996 | ||
d62a17ae | 997 | if (bgp->main_zebra_update_hold) |
998 | return; | |
999 | ||
9913029c RW |
1000 | /* Make Zebra API structure. */ |
1001 | memset(&api, 0, sizeof(api)); | |
2dbad57f | 1002 | memcpy(&api.rmac, &(info->attr->rmac), sizeof(struct ethaddr)); |
9913029c RW |
1003 | api.vrf_id = bgp->vrf_id; |
1004 | api.type = ZEBRA_ROUTE_BGP; | |
1005 | api.safi = safi; | |
1006 | api.prefix = *p; | |
1007 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1008 | ||
d62a17ae | 1009 | peer = info->peer; |
1010 | ||
1011 | tag = info->attr->tag; | |
1012 | ||
1013 | /* When we create an aggregate route we must also install a Null0 route | |
1014 | * in | |
1015 | * the RIB */ | |
1016 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
09a484dd | 1017 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); |
d62a17ae | 1018 | |
d3135ba3 | 1019 | /* If it is an EVPN route mark as such. |
1020 | * Currently presence of rmac in attr denotes | |
523cafc4 | 1021 | * this is an EVPN type-2 route |
1022 | */ | |
d3135ba3 | 1023 | if (!is_zero_mac(&(info->attr->rmac))) |
90264d64 | 1024 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1025 | |
d62a17ae | 1026 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1027 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1028 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1029 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1030 | } |
a39275d7 | 1031 | |
d62a17ae | 1032 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
1033 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
1034 | || bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
1035 | ||
4e8b02f4 | 1036 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1037 | |
2ad4f093 RW |
1038 | /* Metric is currently based on the best-path only */ |
1039 | metric = info->attr->med; | |
1040 | for (mpinfo = info; mpinfo; mpinfo = bgp_info_mpath_next(mpinfo)) { | |
a74e593b RW |
1041 | if (valid_nh_count >= multipath_num) |
1042 | break; | |
1043 | ||
b4cb15c6 DL |
1044 | *mpinfo_cp = *mpinfo; |
1045 | ||
d0d695f4 RW |
1046 | /* Get nexthop address-family */ |
1047 | if (p->family == AF_INET | |
1048 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1049 | nh_family = AF_INET; | |
1050 | else if (p->family == AF_INET6 | |
1051 | || (p->family == AF_INET | |
1052 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1053 | nh_family = AF_INET6; | |
1054 | else | |
1055 | continue; | |
1056 | ||
1374aec9 DS |
1057 | api_nh = &api.nexthops[valid_nh_count]; |
1058 | api_nh->vrf_id = bgp->vrf_id; | |
1059 | ||
2ad4f093 RW |
1060 | if (nh_family == AF_INET) { |
1061 | struct in_addr *nexthop; | |
d62a17ae | 1062 | |
d62a17ae | 1063 | if (bgp->table_map[afi][safi].name) { |
1064 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1065 | apply doesn't modify the BGP route info. */ |
1066 | local_attr = *mpinfo->attr; | |
1067 | mpinfo_cp->attr = &local_attr; | |
1068 | ||
1069 | if (!bgp_table_map_apply( | |
d62a17ae | 1070 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1071 | mpinfo_cp)) |
1072 | continue; | |
1073 | ||
1074 | /* metric/tag is only allowed to be | |
1075 | * overridden on 1st nexthop */ | |
1076 | if (mpinfo == info) { | |
1077 | metric = mpinfo_cp->attr->med; | |
1078 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1079 | } |
b4cb15c6 | 1080 | } |
d62a17ae | 1081 | |
b4cb15c6 | 1082 | nexthop = &mpinfo_cp->attr->nexthop; |
d62a17ae | 1083 | |
9913029c | 1084 | api_nh->gate.ipv4 = *nexthop; |
d3135ba3 | 1085 | /* EVPN type-2 routes are |
523cafc4 | 1086 | programmed as onlink on l3-vni SVI |
1087 | */ | |
90264d64 | 1088 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) |
d3135ba3 | 1089 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
1090 | else | |
1091 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
2ad4f093 RW |
1092 | } else { |
1093 | ifindex_t ifindex; | |
1094 | struct in6_addr *nexthop; | |
9913029c | 1095 | |
d62a17ae | 1096 | ifindex = 0; |
d62a17ae | 1097 | |
1098 | if (bgp->table_map[afi][safi].name) { | |
1099 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1100 | apply doesn't modify the BGP route info. */ |
1101 | local_attr = *mpinfo->attr; | |
1102 | mpinfo_cp->attr = &local_attr; | |
1103 | ||
1104 | if (!bgp_table_map_apply( | |
d62a17ae | 1105 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1106 | mpinfo_cp)) |
1107 | continue; | |
1108 | ||
1109 | /* metric/tag is only allowed to be | |
1110 | * overridden on 1st nexthop */ | |
1111 | if (mpinfo == info) { | |
1112 | metric = mpinfo_cp->attr->med; | |
1113 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1114 | } |
b4cb15c6 DL |
1115 | } |
1116 | nexthop = bgp_info_to_ipv6_nexthop(mpinfo_cp); | |
d62a17ae | 1117 | |
1118 | if ((mpinfo == info) | |
1119 | && mpinfo->attr->mp_nexthop_len | |
1120 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1121 | if (mpinfo->peer->nexthop.ifp) | |
1122 | ifindex = mpinfo->peer->nexthop.ifp | |
1123 | ->ifindex; | |
1124 | ||
1125 | if (!ifindex) { | |
afb6d3f5 DS |
1126 | if (mpinfo->peer->conf_if) |
1127 | ifindex = mpinfo->peer->ifp->ifindex; | |
1128 | else if (mpinfo->peer->ifname) | |
d62a17ae | 1129 | ifindex = ifname2ifindex( |
afb6d3f5 | 1130 | mpinfo->peer->ifname, |
d62a17ae | 1131 | bgp->vrf_id); |
1132 | else if (mpinfo->peer->nexthop.ifp) | |
1133 | ifindex = mpinfo->peer->nexthop.ifp | |
1134 | ->ifindex; | |
1135 | } | |
1136 | if (ifindex == 0) | |
1137 | continue; | |
1138 | ||
9913029c RW |
1139 | api_nh->gate.ipv6 = *nexthop; |
1140 | api_nh->ifindex = ifindex; | |
1141 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
2ad4f093 | 1142 | } |
d62a17ae | 1143 | |
a4d82a8a PZ |
1144 | if (mpinfo->extra |
1145 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1146 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1147 | has_valid_label = 1; |
b57ba6d2 | 1148 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1149 | |
2ad4f093 RW |
1150 | api_nh->label_num = 1; |
1151 | api_nh->labels[0] = label; | |
d62a17ae | 1152 | } |
2ad4f093 RW |
1153 | valid_nh_count++; |
1154 | } | |
d62a17ae | 1155 | |
a89b49cc | 1156 | /* if this is a evpn route we don't have to include the label */ |
a4d82a8a | 1157 | if (has_valid_label && !(CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))) |
2ad4f093 | 1158 | SET_FLAG(api.message, ZAPI_MESSAGE_LABEL); |
d62a17ae | 1159 | |
09a484dd | 1160 | if (info->sub_type != BGP_ROUTE_AGGREGATE) |
2ad4f093 | 1161 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1162 | |
2ad4f093 RW |
1163 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1164 | api.metric = metric; | |
d62a17ae | 1165 | |
2ad4f093 RW |
1166 | if (tag) { |
1167 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1168 | api.tag = tag; | |
1169 | } | |
d62a17ae | 1170 | |
2ad4f093 RW |
1171 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1172 | if (distance) { | |
1173 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1174 | api.distance = distance; | |
1175 | } | |
d62a17ae | 1176 | |
2ad4f093 RW |
1177 | if (bgp_debug_zebra(p)) { |
1178 | char prefix_buf[PREFIX_STRLEN]; | |
1179 | char nh_buf[INET6_ADDRSTRLEN]; | |
1180 | char label_buf[20]; | |
1181 | int i; | |
1182 | ||
1183 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1184 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1185 | " count %d", | |
1186 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1187 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1188 | for (i = 0; i < api.nexthop_num; i++) { | |
1189 | api_nh = &api.nexthops[i]; | |
1190 | ||
d0d695f4 RW |
1191 | if (api_nh->type == NEXTHOP_TYPE_IPV4) |
1192 | nh_family = AF_INET; | |
1193 | else | |
1194 | nh_family = AF_INET6; | |
2ad4f093 RW |
1195 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1196 | sizeof(nh_buf)); | |
1197 | ||
1198 | label_buf[0] = '\0'; | |
a4d82a8a PZ |
1199 | if (has_valid_label |
1200 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
2ad4f093 RW |
1201 | sprintf(label_buf, "label %u", |
1202 | api_nh->labels[0]); | |
1203 | zlog_debug(" nhop [%d]: %s %s", i + 1, nh_buf, | |
1204 | label_buf); | |
d62a17ae | 1205 | } |
1206 | } | |
2ad4f093 RW |
1207 | |
1208 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD | |
1209 | : ZEBRA_ROUTE_DELETE, | |
1210 | zclient, &api); | |
718e3744 | 1211 | } |
1212 | ||
73ac8160 | 1213 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1214 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1215 | { |
d62a17ae | 1216 | struct bgp_node *rn; |
1217 | struct bgp_table *table; | |
1218 | struct bgp_info *ri; | |
1219 | ||
1220 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1221 | * know of this instance. | |
1222 | */ | |
1223 | if (!bgp_install_info_to_zebra(bgp)) | |
1224 | return; | |
1225 | ||
1226 | table = bgp->rib[afi][safi]; | |
1227 | if (!table) | |
1228 | return; | |
1229 | ||
1230 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
1231 | for (ri = rn->info; ri; ri = ri->next) | |
1232 | if (CHECK_FLAG(ri->flags, BGP_INFO_SELECTED) | |
1233 | && ri->type == ZEBRA_ROUTE_BGP | |
1234 | && ri->sub_type == BGP_ROUTE_NORMAL) | |
1235 | bgp_zebra_announce(rn, &rn->p, ri, bgp, afi, | |
1236 | safi); | |
73ac8160 DS |
1237 | } |
1238 | ||
d62a17ae | 1239 | void bgp_zebra_withdraw(struct prefix *p, struct bgp_info *info, safi_t safi) |
718e3744 | 1240 | { |
2ad4f093 | 1241 | struct zapi_route api; |
d62a17ae | 1242 | struct peer *peer; |
1243 | ||
1244 | peer = info->peer; | |
1245 | assert(peer); | |
1246 | ||
1247 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1248 | * know of this instance. | |
1249 | */ | |
1250 | if (!bgp_install_info_to_zebra(peer->bgp)) | |
1251 | return; | |
1252 | ||
2ad4f093 | 1253 | memset(&api, 0, sizeof(api)); |
01740ff4 | 1254 | memcpy(&api.rmac, &(info->attr->rmac), sizeof(struct ethaddr)); |
2ad4f093 RW |
1255 | api.vrf_id = peer->bgp->vrf_id; |
1256 | api.type = ZEBRA_ROUTE_BGP; | |
1257 | api.safi = safi; | |
1258 | api.prefix = *p; | |
d62a17ae | 1259 | |
01740ff4 MK |
1260 | /* If it is an EVPN route mark as such. |
1261 | * Currently presence of rmac in attr denotes | |
523cafc4 | 1262 | * this is an EVPN type-2 route |
1263 | */ | |
01740ff4 | 1264 | if (!is_zero_mac(&(info->attr->rmac))) |
90264d64 | 1265 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1266 | |
d62a17ae | 1267 | if (peer->sort == BGP_PEER_IBGP) { |
4e8b02f4 | 1268 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
2ad4f093 | 1269 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
a39275d7 AS |
1270 | } |
1271 | ||
d62a17ae | 1272 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
1273 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
1274 | || bgp_flag_check(peer->bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
4e8b02f4 | 1275 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1276 | |
2ad4f093 RW |
1277 | if (bgp_debug_zebra(p)) { |
1278 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1279 | |
2ad4f093 RW |
1280 | prefix2str(&api.prefix, buf, sizeof(buf)); |
1281 | zlog_debug("Tx route delete VRF %u %s", peer->bgp->vrf_id, buf); | |
d62a17ae | 1282 | } |
d62a17ae | 1283 | |
2ad4f093 | 1284 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1285 | } |
56c1f7d8 | 1286 | |
d62a17ae | 1287 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, u_char type, |
1288 | u_short instance) | |
7c8ff89e | 1289 | { |
d62a17ae | 1290 | struct list *red_list; |
1291 | struct listnode *node; | |
1292 | struct bgp_redist *red; | |
7c8ff89e | 1293 | |
d62a17ae | 1294 | red_list = bgp->redist[afi][type]; |
1295 | if (!red_list) | |
1296 | return (NULL); | |
7c8ff89e | 1297 | |
d62a17ae | 1298 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1299 | if (red->instance == instance) | |
1300 | return red; | |
7c8ff89e | 1301 | |
d62a17ae | 1302 | return NULL; |
7c8ff89e DS |
1303 | } |
1304 | ||
d62a17ae | 1305 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, u_char type, |
1306 | u_short instance) | |
7c8ff89e | 1307 | { |
d62a17ae | 1308 | struct list *red_list; |
1309 | struct bgp_redist *red; | |
7c8ff89e | 1310 | |
d62a17ae | 1311 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1312 | if (red) | |
1313 | return red; | |
7c8ff89e | 1314 | |
d62a17ae | 1315 | if (!bgp->redist[afi][type]) |
1316 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1317 | |
d62a17ae | 1318 | red_list = bgp->redist[afi][type]; |
1319 | red = (struct bgp_redist *)XCALLOC(MTYPE_BGP_REDIST, | |
1320 | sizeof(struct bgp_redist)); | |
1321 | red->instance = instance; | |
7c8ff89e | 1322 | |
d62a17ae | 1323 | listnode_add(red_list, red); |
7c8ff89e | 1324 | |
d62a17ae | 1325 | return red; |
7c8ff89e DS |
1326 | } |
1327 | ||
d62a17ae | 1328 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, u_char type, |
1329 | u_short instance) | |
7c8ff89e | 1330 | { |
d62a17ae | 1331 | struct bgp_redist *red; |
1332 | ||
1333 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1334 | ||
1335 | if (red) { | |
1336 | listnode_delete(bgp->redist[afi][type], red); | |
1337 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 DS |
1338 | if (!bgp->redist[afi][type]->count) |
1339 | list_delete_and_null(&bgp->redist[afi][type]); | |
d62a17ae | 1340 | } |
7c8ff89e | 1341 | } |
6b0655a2 | 1342 | |
718e3744 | 1343 | /* Other routes redistribution into BGP. */ |
d62a17ae | 1344 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, u_short instance) |
718e3744 | 1345 | { |
718e3744 | 1346 | |
d62a17ae | 1347 | /* Return if already redistribute flag is set. */ |
1348 | if (instance) { | |
1349 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1350 | instance)) | |
1351 | return CMD_WARNING; | |
718e3744 | 1352 | |
d62a17ae | 1353 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1354 | } else { | |
1355 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1356 | return CMD_WARNING; | |
7076bb2f | 1357 | |
65efcfce | 1358 | #if ENABLE_BGP_VNC |
d62a17ae | 1359 | if (bgp->vrf_id == VRF_DEFAULT |
1360 | && type == ZEBRA_ROUTE_VNC_DIRECT) { | |
1361 | vnc_export_bgp_enable( | |
1362 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1363 | } | |
65efcfce LB |
1364 | #endif |
1365 | ||
d62a17ae | 1366 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1367 | } | |
718e3744 | 1368 | |
ea12cf11 DS |
1369 | /* |
1370 | * Don't try to register if we're not connected to Zebra or Zebra | |
1371 | * doesn't know of this instance. | |
1372 | * | |
1373 | * When we come up later well resend if needed. | |
d62a17ae | 1374 | */ |
1375 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1376 | return CMD_SUCCESS; |
a39275d7 | 1377 | |
d62a17ae | 1378 | if (BGP_DEBUG(zebra, ZEBRA)) |
1379 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1380 | bgp->vrf_id, afi, zebra_route_string(type), | |
1381 | instance); | |
518f0eb1 | 1382 | |
d62a17ae | 1383 | /* Send distribute add message to zebra. */ |
1384 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1385 | instance, bgp->vrf_id); | |
718e3744 | 1386 | |
d62a17ae | 1387 | return CMD_SUCCESS; |
718e3744 | 1388 | } |
1389 | ||
d62a17ae | 1390 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
1391 | u_short instance) | |
518f0eb1 | 1392 | { |
d62a17ae | 1393 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1394 | * know of this instance. | |
1395 | */ | |
1396 | if (!bgp_install_info_to_zebra(bgp)) | |
1397 | return -1; | |
1398 | ||
1399 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1400 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1401 | bgp->vrf_id, afi, zebra_route_string(type), | |
1402 | instance); | |
1403 | ||
1404 | /* Send distribute add message to zebra. */ | |
1405 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1406 | instance, bgp->vrf_id); | |
1407 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1408 | instance, bgp->vrf_id); | |
1409 | ||
1410 | return 0; | |
518f0eb1 DS |
1411 | } |
1412 | ||
718e3744 | 1413 | /* Redistribute with route-map specification. */ |
d62a17ae | 1414 | int bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name) |
718e3744 | 1415 | { |
d62a17ae | 1416 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
1417 | return 0; | |
718e3744 | 1418 | |
d62a17ae | 1419 | if (red->rmap.name) |
1420 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1421 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); | |
1422 | red->rmap.map = route_map_lookup_by_name(name); | |
718e3744 | 1423 | |
d62a17ae | 1424 | return 1; |
718e3744 | 1425 | } |
1426 | ||
1427 | /* Redistribute with metric specification. */ | |
d62a17ae | 1428 | int bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
1429 | afi_t afi, int type, u_int32_t metric) | |
718e3744 | 1430 | { |
d62a17ae | 1431 | struct bgp_node *rn; |
1432 | struct bgp_info *ri; | |
1433 | ||
1434 | if (red->redist_metric_flag && red->redist_metric == metric) | |
1435 | return 0; | |
1436 | ||
1437 | red->redist_metric_flag = 1; | |
1438 | red->redist_metric = metric; | |
1439 | ||
1440 | for (rn = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); rn; | |
1441 | rn = bgp_route_next(rn)) { | |
1442 | for (ri = rn->info; ri; ri = ri->next) { | |
1443 | if (ri->sub_type == BGP_ROUTE_REDISTRIBUTE | |
1444 | && ri->type == type | |
1445 | && ri->instance == red->instance) { | |
1446 | struct attr *old_attr; | |
1447 | struct attr new_attr; | |
1448 | ||
1449 | bgp_attr_dup(&new_attr, ri->attr); | |
1450 | new_attr.med = red->redist_metric; | |
1451 | old_attr = ri->attr; | |
1452 | ri->attr = bgp_attr_intern(&new_attr); | |
1453 | bgp_attr_unintern(&old_attr); | |
1454 | ||
1455 | bgp_info_set_flag(rn, ri, | |
1456 | BGP_INFO_ATTR_CHANGED); | |
1457 | bgp_process(bgp, rn, afi, SAFI_UNICAST); | |
1458 | } | |
1459 | } | |
1460 | } | |
1461 | ||
1462 | return 1; | |
718e3744 | 1463 | } |
1464 | ||
1465 | /* Unset redistribution. */ | |
d62a17ae | 1466 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
1467 | u_short instance) | |
718e3744 | 1468 | { |
d62a17ae | 1469 | struct bgp_redist *red; |
1470 | ||
1471 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1472 | if (!red) | |
1473 | return CMD_SUCCESS; | |
1474 | ||
1475 | /* Return if zebra connection is disabled. */ | |
1476 | if (instance) { | |
1477 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1478 | instance)) | |
1479 | return CMD_WARNING; | |
1480 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1481 | } else { | |
1482 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1483 | return CMD_WARNING; | |
1484 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1485 | } | |
718e3744 | 1486 | |
65efcfce | 1487 | #if ENABLE_BGP_VNC |
d62a17ae | 1488 | if (bgp->vrf_id == VRF_DEFAULT && type == ZEBRA_ROUTE_VNC_DIRECT) { |
1489 | vnc_export_bgp_disable(bgp, afi); | |
1490 | } | |
65efcfce LB |
1491 | #endif |
1492 | ||
d62a17ae | 1493 | if (bgp_install_info_to_zebra(bgp)) { |
1494 | /* Send distribute delete message to zebra. */ | |
1495 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1496 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1497 | bgp->vrf_id, afi, zebra_route_string(type), | |
1498 | instance); | |
1499 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1500 | type, instance, bgp->vrf_id); | |
1501 | } | |
1502 | ||
1503 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1504 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1505 | ||
1506 | return CMD_SUCCESS; | |
718e3744 | 1507 | } |
1508 | ||
6aeb9e78 | 1509 | /* Unset redistribution. */ |
d62a17ae | 1510 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
1511 | u_short instance) | |
6aeb9e78 | 1512 | { |
d62a17ae | 1513 | struct bgp_redist *red; |
6aeb9e78 | 1514 | |
d62a17ae | 1515 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1516 | if (!red) | |
1517 | return CMD_SUCCESS; | |
6aeb9e78 | 1518 | |
d62a17ae | 1519 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1520 | |
d62a17ae | 1521 | /* Unset route-map. */ |
1522 | if (red->rmap.name) | |
1523 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); | |
1524 | red->rmap.name = NULL; | |
1525 | red->rmap.map = NULL; | |
6aeb9e78 | 1526 | |
d62a17ae | 1527 | /* Unset metric. */ |
1528 | red->redist_metric_flag = 0; | |
1529 | red->redist_metric = 0; | |
6aeb9e78 | 1530 | |
d62a17ae | 1531 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1532 | |
d62a17ae | 1533 | return CMD_SUCCESS; |
6aeb9e78 DS |
1534 | } |
1535 | ||
eb117f29 SK |
1536 | /* Update redistribute vrf bitmap during triggers like |
1537 | restart networking or delete/add VRFs */ | |
d62a17ae | 1538 | void bgp_update_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) |
eb117f29 | 1539 | { |
d62a17ae | 1540 | int i; |
1541 | afi_t afi; | |
1542 | ||
1543 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1544 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
48c74f88 DS |
1545 | if ((old_vrf_id == VRF_UNKNOWN) |
1546 | || vrf_bitmap_check(zclient->redist[afi][i], | |
1547 | old_vrf_id)) { | |
d62a17ae | 1548 | vrf_bitmap_unset(zclient->redist[afi][i], |
1549 | old_vrf_id); | |
1550 | vrf_bitmap_set(zclient->redist[afi][i], | |
1551 | bgp->vrf_id); | |
1552 | } | |
1553 | return; | |
eb117f29 SK |
1554 | } |
1555 | ||
d62a17ae | 1556 | void bgp_zclient_reset(void) |
718e3744 | 1557 | { |
d62a17ae | 1558 | zclient_reset(zclient); |
718e3744 | 1559 | } |
1560 | ||
ad4cbda1 | 1561 | /* Register this instance with Zebra. Invoked upon connect (for |
1562 | * default instance) and when other VRFs are learnt (or created and | |
1563 | * already learnt). | |
1564 | */ | |
d62a17ae | 1565 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1566 | { |
d62a17ae | 1567 | /* Don't try to register if we're not connected to Zebra */ |
1568 | if (!zclient || zclient->sock < 0) | |
1569 | return; | |
ad4cbda1 | 1570 | |
d62a17ae | 1571 | if (BGP_DEBUG(zebra, ZEBRA)) |
1572 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1573 | |
d62a17ae | 1574 | /* Register for router-id, interfaces, redistributed routes. */ |
1575 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1576 | |
d62a17ae | 1577 | /* For default instance, register to learn about VNIs, if appropriate. |
1578 | */ | |
a4d82a8a | 1579 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1580 | bgp_zebra_advertise_all_vni(bgp, 1); |
ad4cbda1 | 1581 | } |
1582 | ||
1583 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1584 | * being deleted (default or VRF) and it is already registered. | |
1585 | */ | |
d62a17ae | 1586 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1587 | { |
d62a17ae | 1588 | /* Don't try to deregister if we're not connected to Zebra */ |
1589 | if (zclient->sock < 0) | |
1590 | return; | |
ad4cbda1 | 1591 | |
d62a17ae | 1592 | if (BGP_DEBUG(zebra, ZEBRA)) |
1593 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1594 | |
d62a17ae | 1595 | /* For default instance, unregister learning about VNIs, if appropriate. |
1596 | */ | |
a4d82a8a | 1597 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT && is_evpn_enabled()) |
d62a17ae | 1598 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1599 | |
d62a17ae | 1600 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1601 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1602 | } |
1603 | ||
d62a17ae | 1604 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1605 | { |
d62a17ae | 1606 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1607 | |
d62a17ae | 1608 | /* Don't try to initiate if we're not connected to Zebra */ |
1609 | if (zclient->sock < 0) | |
1610 | return; | |
4a04e5f7 | 1611 | |
d62a17ae | 1612 | if (BGP_DEBUG(zebra, ZEBRA)) |
1613 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1614 | peer->host); | |
4a04e5f7 | 1615 | |
d62a17ae | 1616 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 1, |
1617 | ra_interval); | |
4a04e5f7 | 1618 | } |
1619 | ||
d62a17ae | 1620 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1621 | { |
d62a17ae | 1622 | /* Don't try to terminate if we're not connected to Zebra */ |
1623 | if (zclient->sock < 0) | |
1624 | return; | |
4a04e5f7 | 1625 | |
d62a17ae | 1626 | if (BGP_DEBUG(zebra, ZEBRA)) |
1627 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
1628 | peer->host); | |
4a04e5f7 | 1629 | |
d62a17ae | 1630 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 0, 0); |
4a04e5f7 | 1631 | } |
1632 | ||
31310b25 MK |
1633 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
1634 | { | |
1635 | struct stream *s = NULL; | |
1636 | ||
1637 | /* Check socket. */ | |
1638 | if (!zclient || zclient->sock < 0) | |
1639 | return 0; | |
1640 | ||
1641 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1642 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1643 | return 0; | |
1644 | ||
1645 | s = zclient->obuf; | |
1646 | stream_reset(s); | |
1647 | ||
1648 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
1649 | stream_putc(s, advertise); | |
1650 | stream_put3(s, vni); | |
1651 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1652 | ||
1653 | return zclient_send_message(zclient); | |
1654 | } | |
1655 | ||
1a98c087 MK |
1656 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
1657 | { | |
1658 | struct stream *s = NULL; | |
1659 | ||
1660 | /* Check socket. */ | |
1661 | if (!zclient || zclient->sock < 0) | |
1662 | return 0; | |
1663 | ||
1664 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1665 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1666 | return 0; | |
1667 | ||
1668 | s = zclient->obuf; | |
1669 | stream_reset(s); | |
1670 | ||
1671 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
1672 | stream_putc(s, advertise); | |
1673 | stream_put3(s, vni); | |
1674 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1675 | ||
1676 | return zclient_send_message(zclient); | |
1677 | } | |
1678 | ||
d62a17ae | 1679 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 1680 | { |
d62a17ae | 1681 | struct stream *s; |
7724c0a1 | 1682 | |
d62a17ae | 1683 | /* Check socket. */ |
1684 | if (!zclient || zclient->sock < 0) | |
1685 | return 0; | |
7724c0a1 | 1686 | |
d62a17ae | 1687 | /* Don't try to register if Zebra doesn't know of this instance. */ |
1688 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1689 | return 0; | |
7724c0a1 | 1690 | |
d62a17ae | 1691 | s = zclient->obuf; |
1692 | stream_reset(s); | |
7724c0a1 | 1693 | |
d62a17ae | 1694 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
1695 | stream_putc(s, advertise); | |
1696 | stream_putw_at(s, 0, stream_get_endp(s)); | |
7724c0a1 | 1697 | |
d62a17ae | 1698 | return zclient_send_message(zclient); |
7724c0a1 | 1699 | } |
1700 | ||
ad4cbda1 | 1701 | /* BGP has established connection with Zebra. */ |
d62a17ae | 1702 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 1703 | { |
d62a17ae | 1704 | struct bgp *bgp; |
7076bb2f | 1705 | |
d62a17ae | 1706 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 1707 | |
d62a17ae | 1708 | /* At this point, we may or may not have BGP instances configured, but |
1709 | * we're only interested in the default VRF (others wouldn't have learnt | |
1710 | * the VRF from Zebra yet.) | |
1711 | */ | |
1712 | bgp = bgp_get_default(); | |
1713 | if (!bgp) | |
1714 | return; | |
ad4cbda1 | 1715 | |
d62a17ae | 1716 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 1717 | |
d62a17ae | 1718 | /* Send the client registration */ |
1719 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER); | |
2376c3f2 | 1720 | |
d62a17ae | 1721 | /* TODO - What if we have peers and networks configured, do we have to |
1722 | * kick-start them? | |
1723 | */ | |
7076bb2f FL |
1724 | } |
1725 | ||
fe1dc5a3 MK |
1726 | static int bgp_zebra_process_local_l3vni(int cmd, struct zclient *zclient, |
1727 | zebra_size_t length, vrf_id_t vrf_id) | |
1728 | { | |
c48d9f5f | 1729 | int filter = 0; |
fe1dc5a3 | 1730 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 1731 | vni_t l3vni = 0; |
fe1dc5a3 | 1732 | struct ethaddr rmac; |
b67a60d2 | 1733 | struct in_addr originator_ip; |
fe1dc5a3 MK |
1734 | struct stream *s; |
1735 | ||
1736 | memset(&rmac, 0, sizeof(struct ethaddr)); | |
b67a60d2 | 1737 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
1738 | s = zclient->ibuf; |
1739 | l3vni = stream_getl(s); | |
b67a60d2 | 1740 | if (cmd == ZEBRA_L3VNI_ADD) { |
fe1dc5a3 | 1741 | stream_get(&rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 1742 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 1743 | stream_get(&filter, s, sizeof(int)); |
b67a60d2 | 1744 | } |
fe1dc5a3 MK |
1745 | |
1746 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c48d9f5f | 1747 | zlog_debug("Rx L3-VNI %s VRF %s VNI %u RMAC %s filter %s", |
fe1dc5a3 | 1748 | (cmd == ZEBRA_L3VNI_ADD) ? "add" : "del", |
996c9314 | 1749 | vrf_id_to_name(vrf_id), l3vni, |
c48d9f5f MK |
1750 | prefix_mac2str(&rmac, buf, sizeof(buf)), |
1751 | filter ? "prefix-routes-only" : "none"); | |
fe1dc5a3 MK |
1752 | |
1753 | if (cmd == ZEBRA_L3VNI_ADD) | |
c48d9f5f MK |
1754 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &rmac, originator_ip, |
1755 | filter); | |
fe1dc5a3 MK |
1756 | else |
1757 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); | |
1758 | ||
1759 | return 0; | |
1760 | } | |
1761 | ||
d62a17ae | 1762 | static int bgp_zebra_process_local_vni(int command, struct zclient *zclient, |
1763 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 1764 | { |
d62a17ae | 1765 | struct stream *s; |
1766 | vni_t vni; | |
1767 | struct bgp *bgp; | |
a4d82a8a | 1768 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 1769 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
d62a17ae | 1770 | |
1771 | s = zclient->ibuf; | |
1772 | vni = stream_getl(s); | |
29c53922 | 1773 | if (command == ZEBRA_VNI_ADD) { |
d62a17ae | 1774 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 MK |
1775 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
1776 | } | |
1777 | ||
d62a17ae | 1778 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
1779 | if (!bgp) | |
1780 | return 0; | |
1781 | ||
1782 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 MK |
1783 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
1784 | (command == ZEBRA_VNI_ADD) ? "add" : "del", | |
a4d82a8a PZ |
1785 | vrf_id_to_name(vrf_id), vni, |
1786 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 1787 | |
1788 | if (command == ZEBRA_VNI_ADD) | |
1789 | return bgp_evpn_local_vni_add( | |
29c53922 MK |
1790 | bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id, |
1791 | tenant_vrf_id); | |
d62a17ae | 1792 | else |
1793 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 1794 | } |
1795 | ||
d62a17ae | 1796 | static int bgp_zebra_process_local_macip(int command, struct zclient *zclient, |
1797 | zebra_size_t length, vrf_id_t vrf_id) | |
128ea8ab | 1798 | { |
d62a17ae | 1799 | struct stream *s; |
1800 | vni_t vni; | |
1801 | struct bgp *bgp; | |
1802 | struct ethaddr mac; | |
1803 | struct ipaddr ip; | |
1804 | int ipa_len; | |
1805 | char buf[ETHER_ADDR_STRLEN]; | |
1806 | char buf1[INET6_ADDRSTRLEN]; | |
1a98c087 | 1807 | u_char flags; |
d62a17ae | 1808 | |
1809 | memset(&ip, 0, sizeof(ip)); | |
1810 | s = zclient->ibuf; | |
1811 | vni = stream_getl(s); | |
28328ea9 | 1812 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 1813 | ipa_len = stream_getl(s); |
1814 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
1815 | && ipa_len != IPV6_MAX_BYTELEN) { | |
1816 | zlog_err("%u:Recv MACIP %s with invalid IP addr length %d", | |
1817 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
1818 | ipa_len); | |
1819 | return -1; | |
1820 | } | |
1821 | ||
1822 | if (ipa_len) { | |
1823 | ip.ipa_type = | |
1824 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
1825 | stream_get(&ip.ip.addr, s, ipa_len); | |
1826 | } | |
1a98c087 | 1827 | flags = stream_getc(s); |
d62a17ae | 1828 | |
1829 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
1830 | if (!bgp) | |
1831 | return 0; | |
1832 | ||
1833 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1a98c087 MK |
1834 | zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u", |
1835 | vrf_id, (command == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
1836 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), | |
d62a17ae | 1837 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni); |
1838 | ||
1839 | if (command == ZEBRA_MACIP_ADD) | |
1a98c087 | 1840 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, flags); |
d62a17ae | 1841 | else |
1842 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip); | |
128ea8ab | 1843 | } |
6aeb9e78 | 1844 | |
a4d82a8a | 1845 | static void bgp_zebra_process_local_ip_prefix(int cmd, struct zclient *zclient, |
31310b25 MK |
1846 | zebra_size_t length, |
1847 | vrf_id_t vrf_id) | |
1848 | { | |
1849 | struct stream *s = NULL; | |
1850 | struct bgp *bgp_vrf = NULL; | |
1851 | struct prefix p; | |
1852 | char buf[PREFIX_STRLEN]; | |
1853 | ||
1854 | memset(&p, 0, sizeof(struct prefix)); | |
1855 | s = zclient->ibuf; | |
1856 | stream_get(&p, s, sizeof(struct prefix)); | |
1857 | ||
1858 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
1859 | if (!bgp_vrf) | |
1860 | return; | |
1861 | ||
1862 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1863 | zlog_debug("Recv prefix %s %s on vrf %s", | |
1864 | prefix2str(&p, buf, sizeof(buf)), | |
1865 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
1866 | vrf_id_to_name(vrf_id)); | |
1867 | ||
1868 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
1869 | ||
1870 | if (p.family == AF_INET) | |
a4d82a8a PZ |
1871 | return bgp_evpn_advertise_type5_route( |
1872 | bgp_vrf, &p, NULL, AFI_IP, SAFI_UNICAST); | |
31310b25 | 1873 | else |
a4d82a8a PZ |
1874 | return bgp_evpn_advertise_type5_route( |
1875 | bgp_vrf, &p, NULL, AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
1876 | |
1877 | } else { | |
1878 | if (p.family == AF_INET) | |
a4d82a8a PZ |
1879 | return bgp_evpn_withdraw_type5_route( |
1880 | bgp_vrf, &p, AFI_IP, SAFI_UNICAST); | |
31310b25 | 1881 | else |
a4d82a8a PZ |
1882 | return bgp_evpn_withdraw_type5_route( |
1883 | bgp_vrf, &p, AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
1884 | } |
1885 | } | |
1886 | ||
342213ea DS |
1887 | extern struct zebra_privs_t bgpd_privs; |
1888 | ||
d62a17ae | 1889 | void bgp_zebra_init(struct thread_master *master) |
718e3744 | 1890 | { |
d62a17ae | 1891 | zclient_num_connects = 0; |
1892 | ||
1893 | /* Set default values. */ | |
e1a1880d | 1894 | zclient = zclient_new_notify(master, &zclient_options_default); |
342213ea | 1895 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 1896 | zclient->zebra_connected = bgp_zebra_connected; |
1897 | zclient->router_id_update = bgp_router_id_update; | |
1898 | zclient->interface_add = bgp_interface_add; | |
1899 | zclient->interface_delete = bgp_interface_delete; | |
1900 | zclient->interface_address_add = bgp_interface_address_add; | |
1901 | zclient->interface_address_delete = bgp_interface_address_delete; | |
1902 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
1903 | zclient->interface_nbr_address_delete = | |
1904 | bgp_interface_nbr_address_delete; | |
1905 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
1906 | zclient->redistribute_route_add = zebra_read_route; |
1907 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 1908 | zclient->interface_up = bgp_interface_up; |
1909 | zclient->interface_down = bgp_interface_down; | |
d62a17ae | 1910 | zclient->nexthop_update = bgp_read_nexthop_update; |
1911 | zclient->import_check_update = bgp_read_import_check_update; | |
1912 | zclient->fec_update = bgp_read_fec_update; | |
1913 | zclient->local_vni_add = bgp_zebra_process_local_vni; | |
1914 | zclient->local_vni_del = bgp_zebra_process_local_vni; | |
1915 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
1916 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
1917 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
1918 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
1919 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
1920 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
718e3744 | 1921 | } |
bb86c601 | 1922 | |
d62a17ae | 1923 | void bgp_zebra_destroy(void) |
bb86c601 | 1924 | { |
d62a17ae | 1925 | if (zclient == NULL) |
1926 | return; | |
1927 | zclient_stop(zclient); | |
1928 | zclient_free(zclient); | |
1929 | zclient = NULL; | |
bb86c601 | 1930 | } |
afbb1c59 | 1931 | |
d62a17ae | 1932 | int bgp_zebra_num_connects(void) |
afbb1c59 | 1933 | { |
d62a17ae | 1934 | return zclient_num_connects; |
afbb1c59 | 1935 | } |