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bgpd: VRF-Lite fix best path selection
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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"
94effaf0 36#include "lib/route_opaque.h"
039f3a34 37#include "filter.h"
cd1964ff 38#include "mpls.h"
128ea8ab 39#include "vxlan.h"
6cfe5d15 40#include "pbr.h"
718e3744 41
42#include "bgpd/bgpd.h"
43#include "bgpd/bgp_route.h"
44#include "bgpd/bgp_attr.h"
e46723a5 45#include "bgpd/bgp_aspath.h"
718e3744 46#include "bgpd/bgp_nexthop.h"
47#include "bgpd/bgp_zebra.h"
48#include "bgpd/bgp_fsm.h"
a39275d7 49#include "bgpd/bgp_debug.h"
14454c9f 50#include "bgpd/bgp_errors.h"
8196f13d 51#include "bgpd/bgp_mpath.h"
fb018d25 52#include "bgpd/bgp_nexthop.h"
ffd0c037 53#include "bgpd/bgp_nht.h"
8c4f6381 54#include "bgpd/bgp_bfd.h"
cd1964ff 55#include "bgpd/bgp_label.h"
49e5a4a0 56#ifdef ENABLE_BGP_VNC
d62a17ae 57#include "bgpd/rfapi/rfapi_backend.h"
58#include "bgpd/rfapi/vnc_export_bgp.h"
65efcfce 59#endif
128ea8ab 60#include "bgpd/bgp_evpn.h"
ddb5b488 61#include "bgpd/bgp_mplsvpn.h"
955bfd98 62#include "bgpd/bgp_labelpool.h"
30d50e6d 63#include "bgpd/bgp_pbr.h"
0b9d9cd0 64#include "bgpd/bgp_evpn_private.h"
c44ab6f1 65#include "bgpd/bgp_evpn_mh.h"
6a69ac51 66#include "bgpd/bgp_mac.h"
a383bfc7 67#include "bgpd/bgp_trace.h"
6b0655a2 68
718e3744 69/* All information about zebra. */
228da428 70struct zclient *zclient = NULL;
718e3744 71
0d020cd6
PR		 72/* hook to indicate vrf status change for SNMP */
73DEFINE_HOOK(bgp_vrf_status_changed, (struct bgp *bgp, struct interface *ifp),
8451921b 74 (bgp, ifp));
0d020cd6 75
ad4cbda1 76/* Can we install into zebra? */
3dc339cd 77static inline bool bgp_install_info_to_zebra(struct bgp *bgp)
ad4cbda1 78{
d62a17ae 79 if (zclient->sock <= 0)
3dc339cd 80 return false;
ad4cbda1 81
bb4ef1ae 82 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
15569c58
DA		 83 zlog_debug(
84 "%s: No zebra instance to talk to, not installing information",
85 __func__);
3dc339cd 86 return false;
bb4ef1ae 87 }
ad4cbda1 88
3dc339cd 89 return true;
ad4cbda1 90}
91
afbb1c59
LB		 92int zclient_num_connects;
93
18a6dce6 94/* Router-id update message from zebra. */
121f9dee 95static int bgp_router_id_update(ZAPI_CALLBACK_ARGS)
718e3744 96{
d62a17ae 97 struct prefix router_id;
718e3744 98
d62a17ae 99 zebra_router_id_update_read(zclient->ibuf, &router_id);
a39275d7 100
2dbe669b
DA		 101 if (BGP_DEBUG(zebra, ZEBRA))
102 zlog_debug("Rx Router Id update VRF %u Id %pFX", vrf_id,
103 &router_id);
a39275d7 104
d62a17ae 105 bgp_router_id_zebra_bump(vrf_id, &router_id);
106 return 0;
718e3744 107}
108
fb018d25 109/* Nexthop update message from zebra. */
121f9dee 110static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS)
fb018d25 111{
121f9dee 112 bgp_parse_nexthop_update(cmd, vrf_id);
d62a17ae 113 return 0;
078430f6
DS		 114}
115
4a04e5f7 116/* Set or clear interface on which unnumbered neighbor is configured. This
117 * would in turn cause BGP to initiate or turn off IPv6 RAs on this
118 * interface.
119 */
d62a17ae 120static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp,
121 struct interface *upd_ifp)
4a04e5f7 122{
d62a17ae 123 struct listnode *node, *nnode;
124 struct peer *peer;
125
126 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
127 if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) {
128 if (upd_ifp) {
129 peer->ifp = upd_ifp;
130 bgp_zebra_initiate_radv(bgp, peer);
131 } else {
132 bgp_zebra_terminate_radv(bgp, peer);
133 peer->ifp = upd_ifp;
134 }
135 }
136 }
4a04e5f7 137}
138
a243d1db 139static int bgp_read_fec_update(ZAPI_CALLBACK_ARGS)
cd1964ff 140{
d62a17ae 141 bgp_parse_fec_update();
142 return 0;
cd1964ff
DS		 143}
144
d62a17ae 145static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp)
a80beece 146{
d62a17ae 147 struct listnode *node, *nnode;
148 struct peer *peer;
149
150 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
151 if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)
feb17238 152 && !peer_established(peer)) {
d62a17ae 153 if (peer_active(peer))
154 BGP_EVENT_ADD(peer, BGP_Stop);
155 BGP_EVENT_ADD(peer, BGP_Start);
156 }
157 }
a80beece
DS		 158}
159
d62a17ae 160static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc)
a197c47c 161{
d62a17ae 162 struct listnode *node;
163 struct connected *connected;
164 struct interface *ifp;
165 struct prefix *p;
166
167 /* Kick-off the FSM for any relevant peers only if there is a
168 * valid local address on the interface.
169 */
170 ifp = ifc->ifp;
171 for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) {
172 p = connected->address;
173 if (p->family == AF_INET6
174 && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6))
175 break;
176 }
177 if (!connected)
178 return;
179
180 bgp_start_interface_nbrs(bgp, ifp);
a197c47c
DS		 181}
182
d62a17ae 183static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc,
184 int del)
a80beece 185{
d62a17ae 186 struct listnode *node, *nnode;
187 struct peer *peer;
188 struct interface *ifp;
189
190 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
191 if (peer->conf_if
192 && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) {
193 peer->last_reset = PEER_DOWN_NBR_ADDR_DEL;
194 BGP_EVENT_ADD(peer, BGP_Stop);
195 }
196 }
197 /* Free neighbor also, if we're asked to. */
198 if (del) {
199 ifp = ifc->ifp;
200 listnode_delete(ifp->nbr_connected, ifc);
201 nbr_connected_free(ifc);
202 }
a80beece
DS		 203}
204
3c3c3252 205static int bgp_ifp_destroy(struct interface *ifp)
718e3744 206{
d62a17ae 207 struct bgp *bgp;
718e3744 208
3c3c3252 209 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
a4499b83 210
d62a17ae 211 if (BGP_DEBUG(zebra, ZEBRA))
3835984f 212 zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf_id, ifp->name);
a39275d7 213
0d020cd6 214 if (bgp) {
85751d1d 215 bgp_update_interface_nbrs(bgp, ifp, NULL);
0d020cd6
PR		 216 hook_call(bgp_vrf_status_changed, bgp, ifp);
217 }
64745052 218
6a69ac51
DS		 219 bgp_mac_del_mac_entry(ifp);
220
d62a17ae 221 return 0;
718e3744 222}
223
ddbf3e60 224static int bgp_ifp_up(struct interface *ifp)
718e3744 225{
d62a17ae 226 struct connected *c;
227 struct nbr_connected *nc;
228 struct listnode *node, *nnode;
229 struct bgp *bgp;
6aeb9e78 230
ddbf3e60 231 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
718e3744 232
6a69ac51
DS		 233 bgp_mac_add_mac_entry(ifp);
234
d62a17ae 235 if (BGP_DEBUG(zebra, ZEBRA))
ddbf3e60 236 zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf_id, ifp->name);
ad4cbda1 237
85751d1d
DS		 238 if (!bgp)
239 return 0;
240
d62a17ae 241 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
242 bgp_connected_add(bgp, c);
718e3744 243
d62a17ae 244 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
245 bgp_nbr_connected_add(bgp, nc);
a80beece 246
0d020cd6 247 hook_call(bgp_vrf_status_changed, bgp, ifp);
8761cd6d
DS		 248 bgp_nht_ifp_up(ifp);
249
d62a17ae 250 return 0;
718e3744 251}
252
b0b69e59 253static int bgp_ifp_down(struct interface *ifp)
718e3744 254{
d62a17ae 255 struct connected *c;
256 struct nbr_connected *nc;
257 struct listnode *node, *nnode;
258 struct bgp *bgp;
c19fe3c7 259 struct peer *peer;
6aeb9e78 260
b0b69e59 261 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
718e3744 262
6a69ac51
DS		 263 bgp_mac_del_mac_entry(ifp);
264
d62a17ae 265 if (BGP_DEBUG(zebra, ZEBRA))
b0b69e59 266 zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf_id, ifp->name);
ad4cbda1 267
85751d1d
DS		 268 if (!bgp)
269 return 0;
270
d62a17ae 271 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
272 bgp_connected_delete(bgp, c);
718e3744 273
d62a17ae 274 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
275 bgp_nbr_connected_delete(bgp, nc, 1);
a80beece 276
d62a17ae 277 /* Fast external-failover */
c19fe3c7 278 if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) {
718e3744 279
d62a17ae 280 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
50bd8995 281 /* Take down directly connected peers. */
c8d6f0d6 282 if ((peer->ttl != BGP_DEFAULT_TTL)
e2521429 283 && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED))
d62a17ae 284 continue;
718e3744 285
d62a17ae 286 if (ifp == peer->nexthop.ifp) {
287 BGP_EVENT_ADD(peer, BGP_Stop);
288 peer->last_reset = PEER_DOWN_IF_DOWN;
289 }
290 }
291 }
718e3744 292
0d020cd6 293 hook_call(bgp_vrf_status_changed, bgp, ifp);
8761cd6d
DS		 294 bgp_nht_ifp_down(ifp);
295
d62a17ae 296 return 0;
718e3744 297}
298
121f9dee 299static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS)
718e3744 300{
d62a17ae 301 struct connected *ifc;
2f9123e0
DS		 302 struct bgp *bgp;
303
304 bgp = bgp_lookup_by_vrf_id(vrf_id);
d62a17ae 305
121f9dee 306 ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
d62a17ae 307
308 if (ifc == NULL)
309 return 0;
310
2dbe669b
DA		 311 if (bgp_debug_zebra(ifc->address))
312 zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id,
313 ifc->ifp->name, ifc->address);
d62a17ae 314
85751d1d
DS		 315 if (!bgp)
316 return 0;
317
d62a17ae 318 if (if_is_operative(ifc->ifp)) {
d62a17ae 319 bgp_connected_add(bgp, ifc);
2f9123e0 320
d62a17ae 321 /* If we have learnt of any neighbors on this interface,
322 * check to kick off any BGP interface-based neighbors,
323 * but only if this is a link-local address.
324 */
325 if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6)
326 && !list_isempty(ifc->ifp->nbr_connected))
327 bgp_start_interface_nbrs(bgp, ifc->ifp);
328 }
329
330 return 0;
718e3744 331}
332
121f9dee 333static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS)
718e3744 334{
f3d20a2a 335 struct listnode *node, *nnode;
d62a17ae 336 struct connected *ifc;
f3d20a2a 337 struct peer *peer;
d62a17ae 338 struct bgp *bgp;
f3d20a2a 339 struct prefix *addr;
6aeb9e78 340
2f9123e0 341 bgp = bgp_lookup_by_vrf_id(vrf_id);
2f9123e0 342
121f9dee 343 ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
718e3744 344
d62a17ae 345 if (ifc == NULL)
346 return 0;
718e3744 347
2dbe669b
DA		 348 if (bgp_debug_zebra(ifc->address))
349 zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id,
350 ifc->ifp->name, ifc->address);
a39275d7 351
85751d1d 352 if (bgp && if_is_operative(ifc->ifp)) {
2f9123e0 353 bgp_connected_delete(bgp, ifc);
d62a17ae 354 }
718e3744 355
f3d20a2a
DS		 356 addr = ifc->address;
357
358 if (bgp) {
359 /*
360 * When we are using the v6 global as part of the peering
361 * nexthops and we are removing it, then we need to
362 * clear the peer data saved for that nexthop and
363 * cause a re-announcement of the route. Since
364 * we do not want the peering to bounce.
365 */
366 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
367 afi_t afi;
368 safi_t safi;
369
370 if (addr->family == AF_INET)
371 continue;
372
373 if (!IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6)
374 && memcmp(&peer->nexthop.v6_global,
375 &addr->u.prefix6, 16)
376 == 0) {
377 memset(&peer->nexthop.v6_global, 0, 16);
378 FOREACH_AFI_SAFI (afi, safi)
379 bgp_announce_route(peer, afi, safi,
380 true);
381 }
382 }
383 }
384
721c0857 385 connected_free(&ifc);
718e3744 386
d62a17ae 387 return 0;
718e3744 388}
389
121f9dee 390static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS)
a80beece 391{
d62a17ae 392 struct nbr_connected *ifc = NULL;
393 struct bgp *bgp;
394
121f9dee 395 ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id);
d62a17ae 396
397 if (ifc == NULL)
398 return 0;
399
2dbe669b
DA		 400 if (bgp_debug_zebra(ifc->address))
401 zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX",
402 vrf_id, ifc->ifp->name, ifc->address);
d62a17ae 403
404 if (if_is_operative(ifc->ifp)) {
405 bgp = bgp_lookup_by_vrf_id(vrf_id);
406 if (bgp)
407 bgp_nbr_connected_add(bgp, ifc);
408 }
409
410 return 0;
a80beece
DS		 411}
412
121f9dee 413static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS)
a80beece 414{
d62a17ae 415 struct nbr_connected *ifc = NULL;
416 struct bgp *bgp;
6aeb9e78 417
121f9dee 418 ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id);
a80beece 419
d62a17ae 420 if (ifc == NULL)
421 return 0;
a80beece 422
2dbe669b
DA		 423 if (bgp_debug_zebra(ifc->address))
424 zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX",
425 vrf_id, ifc->ifp->name, ifc->address);
a80beece 426
d62a17ae 427 if (if_is_operative(ifc->ifp)) {
428 bgp = bgp_lookup_by_vrf_id(vrf_id);
429 if (bgp)
430 bgp_nbr_connected_delete(bgp, ifc, 0);
431 }
a80beece 432
d62a17ae 433 nbr_connected_free(ifc);
a80beece 434
d62a17ae 435 return 0;
a80beece
DS		 436}
437
bfcd43b2 438/* VRF update for an interface. */
121f9dee 439static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS)
bfcd43b2 440{
d62a17ae 441 struct interface *ifp;
442 vrf_id_t new_vrf_id;
443 struct connected *c;
444 struct nbr_connected *nc;
445 struct listnode *node, *nnode;
446 struct bgp *bgp;
c19fe3c7 447 struct peer *peer;
bfcd43b2 448
d62a17ae 449 ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id,
450 &new_vrf_id);
451 if (!ifp)
452 return 0;
bfcd43b2 453
d62a17ae 454 if (BGP_DEBUG(zebra, ZEBRA) && ifp)
455 zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id,
456 ifp->name, new_vrf_id);
bfcd43b2 457
d62a17ae 458 bgp = bgp_lookup_by_vrf_id(vrf_id);
bfcd43b2 459
85751d1d
DS		 460 if (bgp) {
461 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
462 bgp_connected_delete(bgp, c);
bfcd43b2 463
85751d1d
DS		 464 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
465 bgp_nbr_connected_delete(bgp, nc, 1);
bfcd43b2 466
85751d1d
DS		 467 /* Fast external-failover */
468 if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) {
469 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
c8d6f0d6 470 if ((peer->ttl != BGP_DEFAULT_TTL)
e2521429
DA		 471 && (peer->gtsm_hops
472 != BGP_GTSM_HOPS_CONNECTED))
85751d1d 473 continue;
bfcd43b2 474
85751d1d
DS		 475 if (ifp == peer->nexthop.ifp)
476 BGP_EVENT_ADD(peer, BGP_Stop);
477 }
d62a17ae 478 }
479 }
bfcd43b2 480
a36898e7 481 if_update_to_new_vrf(ifp, new_vrf_id);
bfcd43b2 482
d62a17ae 483 bgp = bgp_lookup_by_vrf_id(new_vrf_id);
484 if (!bgp)
485 return 0;
bfcd43b2 486
d62a17ae 487 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
488 bgp_connected_add(bgp, c);
bfcd43b2 489
d62a17ae 490 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
491 bgp_nbr_connected_add(bgp, nc);
0d020cd6
PR		 492
493 hook_call(bgp_vrf_status_changed, bgp, ifp);
d62a17ae 494 return 0;
bfcd43b2 495}
496
718e3744 497/* Zebra route add and delete treatment. */
121f9dee 498static int zebra_read_route(ZAPI_CALLBACK_ARGS)
718e3744 499{
9de1f7ff 500 enum nexthop_types_t nhtype;
0789eb69 501 enum blackhole_type bhtype = BLACKHOLE_UNSPEC;
74489921 502 struct zapi_route api;
0789eb69 503 union g_addr nexthop = {};
9de1f7ff 504 ifindex_t ifindex;
74489921 505 int add, i;
d62a17ae 506 struct bgp *bgp;
507
508 bgp = bgp_lookup_by_vrf_id(vrf_id);
509 if (!bgp)
510 return 0;
511
74489921
RW		 512 if (zapi_route_decode(zclient->ibuf, &api) < 0)
513 return -1;
d62a17ae 514
74489921
RW		 515 /* we completely ignore srcdest routes for now. */
516 if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX))
517 return 0;
d62a17ae 518
74489921
RW		 519 /* ignore link-local address. */
520 if (api.prefix.family == AF_INET6
521 && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6))
522 return 0;
d62a17ae 523
74489921 524 ifindex = api.nexthops[0].ifindex;
9de1f7ff 525 nhtype = api.nexthops[0].type;
d62a17ae 526
0789eb69
KM		 527 /* api_nh structure has union of gate and bh_type */
528 if (nhtype == NEXTHOP_TYPE_BLACKHOLE) {
529 /* bh_type is only applicable if NEXTHOP_TYPE_BLACKHOLE*/
530 bhtype = api.nexthops[0].bh_type;
531 } else
532 nexthop = api.nexthops[0].gate;
533
121f9dee 534 add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD);
74489921 535 if (add) {
d62a17ae 536 /*
537 * The ADD message is actually an UPDATE and there is no
538 * explicit DEL
539 * for a prior redistributed route, if any. So, perform an
540 * implicit
541 * DEL processing for the same redistributed route from any
542 * other
543 * source type.
544 */
545 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
546 if (i != api.type)
74489921 547 bgp_redistribute_delete(bgp, &api.prefix, i,
d62a17ae 548 api.instance);
549 }
550
551 /* Now perform the add/update. */
74489921 552 bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex,
0789eb69
KM		 553 nhtype, bhtype, api.distance, api.metric,
554 api.type, api.instance, api.tag);
d62a17ae 555 } else {
74489921
RW		 556 bgp_redistribute_delete(bgp, &api.prefix, api.type,
557 api.instance);
a39275d7 558 }
d62a17ae 559
74489921 560 if (bgp_debug_zebra(&api.prefix)) {
2dbe669b 561 char buf[PREFIX_STRLEN];
74489921 562
77e62f2b 563 if (add) {
2dbe669b
DA		 564 inet_ntop(api.prefix.family, &nexthop, buf,
565 sizeof(buf));
77e62f2b 566 zlog_debug(
801bb996 567 "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI,
77e62f2b 568 vrf_id, zebra_route_string(api.type),
2dbe669b 569 api.instance, &api.prefix, buf, nhtype, ifindex,
801bb996 570 api.metric, api.distance, api.tag);
77e62f2b 571 } else {
6bdbcbf1 572 zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id,
2dbe669b 573 zebra_route_string(api.type), api.instance,
6bdbcbf1 574 &api.prefix);
77e62f2b 575 }
d62a17ae 576 }
577
578 return 0;
718e3744 579}
6b0655a2 580
d62a17ae 581struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id)
718e3744 582{
f4e14fdb 583 struct vrf *vrf;
d62a17ae 584 struct listnode *cnode;
585 struct interface *ifp;
586 struct connected *connected;
587 struct prefix_ipv4 p;
588 struct prefix *cp;
589
f4e14fdb
RW		 590 vrf = vrf_lookup_by_id(vrf_id);
591 if (!vrf)
592 return NULL;
593
d62a17ae 594 p.family = AF_INET;
595 p.prefix = *addr;
596 p.prefixlen = IPV4_MAX_BITLEN;
597
451fda4f 598 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 599 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
600 cp = connected->address;
601
602 if (cp->family == AF_INET)
603 if (prefix_match(cp, (struct prefix *)&p))
604 return ifp;
605 }
718e3744 606 }
d62a17ae 607 return NULL;
718e3744 608}
609
d62a17ae 610struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id)
718e3744 611{
f4e14fdb 612 struct vrf *vrf;
d62a17ae 613 struct listnode *cnode;
614 struct interface *ifp;
615 struct connected *connected;
616 struct prefix *cp;
617
f4e14fdb
RW		 618 vrf = vrf_lookup_by_id(vrf_id);
619 if (!vrf)
620 return NULL;
621
451fda4f 622 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 623 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
624 cp = connected->address;
625
626 if (cp->family == AF_INET)
627 if (IPV4_ADDR_SAME(&cp->u.prefix4, addr))
628 return ifp;
629 }
718e3744 630 }
d62a17ae 631 return NULL;
718e3744 632}
633
d62a17ae 634struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex,
635 vrf_id_t vrf_id)
718e3744 636{
f4e14fdb 637 struct vrf *vrf;
d62a17ae 638 struct listnode *cnode;
639 struct interface *ifp;
640 struct connected *connected;
641 struct prefix_ipv6 p;
642 struct prefix *cp;
643
f4e14fdb
RW		 644 vrf = vrf_lookup_by_id(vrf_id);
645 if (!vrf)
646 return NULL;
647
d62a17ae 648 p.family = AF_INET6;
649 p.prefix = *addr;
650 p.prefixlen = IPV6_MAX_BITLEN;
651
451fda4f 652 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 653 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
654 cp = connected->address;
655
656 if (cp->family == AF_INET6)
657 if (prefix_match(cp, (struct prefix *)&p)) {
658 if (IN6_IS_ADDR_LINKLOCAL(
659 &cp->u.prefix6)) {
660 if (ifindex == ifp->ifindex)
661 return ifp;
662 } else
663 return ifp;
664 }
665 }
718e3744 666 }
d62a17ae 667 return NULL;
718e3744 668}
669
d62a17ae 670struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr,
671 ifindex_t ifindex, vrf_id_t vrf_id)
718e3744 672{
f4e14fdb 673 struct vrf *vrf;
d62a17ae 674 struct listnode *cnode;
675 struct interface *ifp;
676 struct connected *connected;
677 struct prefix *cp;
678
f4e14fdb
RW		 679 vrf = vrf_lookup_by_id(vrf_id);
680 if (!vrf)
681 return NULL;
682
451fda4f 683 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 684 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
685 cp = connected->address;
686
687 if (cp->family == AF_INET6)
688 if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) {
689 if (IN6_IS_ADDR_LINKLOCAL(
690 &cp->u.prefix6)) {
691 if (ifindex == ifp->ifindex)
692 return ifp;
693 } else
694 return ifp;
695 }
696 }
718e3744 697 }
d62a17ae 698 return NULL;
718e3744 699}
700
d62a17ae 701static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr)
718e3744 702{
d62a17ae 703 struct listnode *cnode;
704 struct connected *connected;
705 struct prefix *cp;
706
707 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
708 cp = connected->address;
709
710 if (cp->family == AF_INET6)
711 if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) {
712 memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN);
713 return 1;
714 }
715 }
716 return 0;
718e3744 717}
718
dac42f2e 719static bool if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr)
718e3744 720{
d62a17ae 721 struct listnode *cnode;
722 struct connected *connected;
723 struct prefix *cp;
724
725 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
726 cp = connected->address;
727
728 if (cp->family == AF_INET6)
729 if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) {
730 memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN);
dac42f2e 731 return true;
d62a17ae 732 }
733 }
dac42f2e 734 return false;
718e3744 735}
718e3744 736
d62a17ae 737static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr)
6ee06fa9 738{
d62a17ae 739 struct listnode *cnode;
740 struct connected *connected;
741 struct prefix *cp;
742
743 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
744 cp = connected->address;
745 if ((cp->family == AF_INET)
746 && !ipv4_martian(&(cp->u.prefix4))) {
747 *addr = cp->u.prefix4;
748 return 1;
749 }
750 }
751 return 0;
6ee06fa9
PM		 752}
753
17cdd31e
DS		 754
755bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote,
756 struct bgp_nexthop *nexthop, struct peer *peer)
718e3744 757{
d62a17ae 758 int ret = 0;
759 struct interface *ifp = NULL;
dac42f2e 760 bool v6_ll_avail = true;
d62a17ae 761
762 memset(nexthop, 0, sizeof(struct bgp_nexthop));
763
764 if (!local)
17cdd31e 765 return false;
d62a17ae 766 if (!remote)
17cdd31e 767 return false;
d62a17ae 768
769 if (local->sa.sa_family == AF_INET) {
770 nexthop->v4 = local->sin.sin_addr;
771 if (peer->update_if)
772 ifp = if_lookup_by_name(peer->update_if,
a36898e7 773 peer->bgp->vrf_id);
d62a17ae 774 else
775 ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr,
776 peer->bgp->vrf_id);
718e3744 777 }
d62a17ae 778 if (local->sa.sa_family == AF_INET6) {
8f2b2139 779 memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN);
d62a17ae 780 if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) {
781 if (peer->conf_if || peer->ifname)
782 ifp = if_lookup_by_name(peer->conf_if
783 ? peer->conf_if
784 : peer->ifname,
a36898e7 785 peer->bgp->vrf_id);
abe68054
PG		 786 else if (peer->update_if)
787 ifp = if_lookup_by_name(peer->update_if,
788 peer->bgp->vrf_id);
d62a17ae 789 } else if (peer->update_if)
790 ifp = if_lookup_by_name(peer->update_if,
a36898e7 791 peer->bgp->vrf_id);
d62a17ae 792 else
793 ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr,
794 local->sin6.sin6_scope_id,
795 peer->bgp->vrf_id);
718e3744 796 }
d62a17ae 797
17cdd31e
DS		 798 if (!ifp) {
799 /*
800 * BGP views do not currently get proper data
801 * from zebra( when attached ) to be able to
802 * properly resolve nexthops, so give this
803 * instance type a pass.
804 */
805 if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW)
806 return true;
807 /*
808 * If we have no interface data but we have established
809 * some connection w/ zebra than something has gone
810 * terribly terribly wrong here, so say this failed
811 * If we do not any zebra connection then not
812 * having a ifp pointer is ok.
813 */
814 return zclient_num_connects ? false : true;
815 }
d62a17ae 816
817 nexthop->ifp = ifp;
818
819 /* IPv4 connection, fetch and store IPv6 local address(es) if any. */
820 if (local->sa.sa_family == AF_INET) {
821 /* IPv6 nexthop*/
822 ret = if_get_ipv6_global(ifp, &nexthop->v6_global);
823
824 if (!ret) {
825 /* There is no global nexthop. Use link-local address as
826 * both the
827 * global and link-local nexthop. In this scenario, the
828 * expectation
829 * for interop is that the network admin would use a
830 * route-map to
831 * specify the global IPv6 nexthop.
832 */
dac42f2e
DS		 833 v6_ll_avail =
834 if_get_ipv6_local(ifp, &nexthop->v6_global);
d62a17ae 835 memcpy(&nexthop->v6_local, &nexthop->v6_global,
836 IPV6_MAX_BYTELEN);
837 } else
dac42f2e
DS		 838 v6_ll_avail =
839 if_get_ipv6_local(ifp, &nexthop->v6_local);
d62a17ae 840
dac42f2e
DS		 841 /*
842 * If we are a v4 connection and we are not doing unnumbered
843 * not having a v6 LL address is ok
844 */
845 if (!v6_ll_avail && !peer->conf_if)
846 v6_ll_avail = true;
d62a17ae 847 if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id))
848 peer->shared_network = 1;
849 else
850 peer->shared_network = 0;
718e3744 851 }
718e3744 852
d62a17ae 853 /* IPv6 connection, fetch and store IPv4 local address if any. */
854 if (local->sa.sa_family == AF_INET6) {
855 struct interface *direct = NULL;
856
857 /* IPv4 nexthop. */
858 ret = if_get_ipv4_address(ifp, &nexthop->v4);
975a328e 859 if (!ret && peer->local_id.s_addr != INADDR_ANY)
d62a17ae 860 nexthop->v4 = peer->local_id;
861
862 /* Global address*/
863 if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) {
864 memcpy(&nexthop->v6_global, &local->sin6.sin6_addr,
865 IPV6_MAX_BYTELEN);
866
867 /* If directory connected set link-local address. */
868 direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr,
869 remote->sin6.sin6_scope_id,
870 peer->bgp->vrf_id);
871 if (direct)
dac42f2e
DS		 872 v6_ll_avail = if_get_ipv6_local(
873 ifp, &nexthop->v6_local);
2ebb354c
IR		 874 /*
875 * It's fine to not have a v6 LL when using
876 * update-source loopback/vrf
877 */
878 if (!v6_ll_avail && if_is_loopback_or_vrf(ifp))
879 v6_ll_avail = true;
d62a17ae 880 } else
881 /* Link-local address. */
882 {
883 ret = if_get_ipv6_global(ifp, &nexthop->v6_global);
884
885 /* If there is no global address. Set link-local
886 address as
887 global. I know this break RFC specification... */
888 /* In this scenario, the expectation for interop is that
889 * the
890 * network admin would use a route-map to specify the
891 * global
892 * IPv6 nexthop.
893 */
894 if (!ret)
895 memcpy(&nexthop->v6_global,
896 &local->sin6.sin6_addr,
897 IPV6_MAX_BYTELEN);
898 /* Always set the link-local address */
899 memcpy(&nexthop->v6_local, &local->sin6.sin6_addr,
900 IPV6_MAX_BYTELEN);
901 }
902
903 if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)
904 || if_lookup_by_ipv6(&remote->sin6.sin6_addr,
905 remote->sin6.sin6_scope_id,
906 peer->bgp->vrf_id))
907 peer->shared_network = 1;
908 else
909 peer->shared_network = 0;
910 }
718e3744 911
d62a17ae 912/* KAME stack specific treatment. */
718e3744 913#ifdef KAME
d62a17ae 914 if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global)
915 && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) {
916 SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0);
917 }
918 if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local)
919 && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) {
920 SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0);
921 }
718e3744 922#endif /* KAME */
e33a4880 923
d62a17ae 924 /* If we have identified the local interface, there is no error for now.
925 */
dac42f2e 926 return v6_ll_avail;
718e3744 927}
928
18ee8310 929static struct in6_addr *
40381db7 930bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex)
73ac8160 931{
d62a17ae 932 struct in6_addr *nexthop = NULL;
933
934 /* Only global address nexthop exists. */
dc94fe42
RW		 935 if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL
936 || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) {
40381db7 937 nexthop = &path->attr->mp_nexthop_global;
77e62f2b 938 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 939 *ifindex = path->attr->nh_ifindex;
77e62f2b 940 }
d62a17ae 941
942 /* If both global and link-local address present. */
dc94fe42
RW		 943 if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
944 || path->attr->mp_nexthop_len
945 == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) {
d62a17ae 946 /* Check if route-map is set to prefer global over link-local */
40381db7
DS		 947 if (path->attr->mp_nexthop_prefer_global) {
948 nexthop = &path->attr->mp_nexthop_global;
77e62f2b 949 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 950 *ifindex = path->attr->nh_ifindex;
77e62f2b 951 } else {
d62a17ae 952 /* Workaround for Cisco's nexthop bug. */
953 if (IN6_IS_ADDR_UNSPECIFIED(
40381db7 954 &path->attr->mp_nexthop_global)
ab0e0f73 955 && path->peer->su_remote
40381db7 956 && path->peer->su_remote->sa.sa_family
59a0f1cb 957 == AF_INET6) {
d62a17ae 958 nexthop =
40381db7 959 &path->peer->su_remote->sin6.sin6_addr;
77e62f2b 960 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 961 *ifindex = path->peer->nexthop.ifp
59a0f1cb 962 ->ifindex;
77e62f2b 963 } else {
40381db7 964 nexthop = &path->attr->mp_nexthop_local;
77e62f2b 965 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 966 *ifindex = path->attr->nh_lla_ifindex;
77e62f2b 967 }
d62a17ae 968 }
969 }
970
971 return nexthop;
73ac8160
DS		 972}
973
b8685f9b 974static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p,
3dc339cd 975 struct bgp_path_info *path)
73ac8160 976{
b4cb15c6
DL		 977 route_map_result_t ret;
978
1782514f 979 ret = route_map_apply(map, p, path);
40381db7 980 bgp_attr_flush(path->attr);
b4cb15c6
DL		 981
982 if (ret != RMAP_DENYMATCH)
3dc339cd 983 return true;
d62a17ae 984
985 if (bgp_debug_zebra(p)) {
986 if (p->family == AF_INET) {
d62a17ae 987 zlog_debug(
c0d72166
DS		 988 "Zebra rmap deny: IPv4 route %pFX nexthop %pI4",
989 p, &path->attr->nexthop);
d62a17ae 990 }
991 if (p->family == AF_INET6) {
992 char buf[2][INET6_ADDRSTRLEN];
77e62f2b 993 ifindex_t ifindex;
994 struct in6_addr *nexthop;
995
40381db7 996 nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex);
d62a17ae 997 zlog_debug(
8228a9a7
DS		 998 "Zebra rmap deny: IPv6 route %pFX nexthop %s",
999 p,
6b9265a3
DA		 1000 nexthop ? inet_ntop(AF_INET6, nexthop, buf[1],
1001 sizeof(buf[1]))
1002 : inet_ntop(AF_INET,
1003 &path->attr->nexthop,
1004 buf[1], sizeof(buf[1])));
d62a17ae 1005 }
1006 }
3dc339cd 1007 return false;
73ac8160
DS		 1008}
1009
b98f7728
PG		 1010static struct thread *bgp_tm_thread_connect;
1011static bool bgp_tm_status_connected;
31c28cd7
PG		 1012static bool bgp_tm_chunk_obtained;
1013#define BGP_FLOWSPEC_TABLE_CHUNK 100000
1014static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size;
6818e7e5 1015struct bgp *bgp_tm_bgp;
b98f7728
PG		 1016
1017static int bgp_zebra_tm_connect(struct thread *t)
1018{
1019 struct zclient *zclient;
1020 int delay = 10, ret = 0;
1021
1022 zclient = THREAD_ARG(t);
1023 if (bgp_tm_status_connected && zclient->sock > 0)
1024 delay = 60;
1025 else {
1026 bgp_tm_status_connected = false;
1027 ret = tm_table_manager_connect(zclient);
1028 }
1029 if (ret < 0) {
b7cd3069 1030 zlog_info("Error connecting to table manager!");
b98f7728
PG		 1031 bgp_tm_status_connected = false;
1032 } else {
1033 if (!bgp_tm_status_connected)
1034 zlog_debug("Connecting to table manager. Success");
1035 bgp_tm_status_connected = true;
31c28cd7
PG		 1036 if (!bgp_tm_chunk_obtained) {
1037 if (bgp_zebra_get_table_range(bgp_tm_chunk_size,
1038 &bgp_tm_min,
6818e7e5 1039 &bgp_tm_max) >= 0) {
31c28cd7 1040 bgp_tm_chunk_obtained = true;
6818e7e5
PG		 1041 /* parse non installed entries */
1042 bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC);
1043 }
31c28cd7 1044 }
b98f7728
PG		 1045 }
1046 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
1047 &bgp_tm_thread_connect);
1048 return 0;
1049}
1050
6818e7e5
PG		 1051bool bgp_zebra_tm_chunk_obtained(void)
1052{
1053 return bgp_tm_chunk_obtained;
1054}
1055
31c28cd7
PG		 1056uint32_t bgp_zebra_tm_get_id(void)
1057{
1058 static int table_id;
1059
1060 if (!bgp_tm_chunk_obtained)
1061 return ++table_id;
1062 return bgp_tm_min++;
1063}
1064
6818e7e5 1065void bgp_zebra_init_tm_connect(struct bgp *bgp)
b98f7728
PG		 1066{
1067 int delay = 1;
1068
1069 /* if already set, do nothing
1070 */
1071 if (bgp_tm_thread_connect != NULL)
1072 return;
1073 bgp_tm_status_connected = false;
31c28cd7
PG		 1074 bgp_tm_chunk_obtained = false;
1075 bgp_tm_min = bgp_tm_max = 0;
1076 bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK;
6818e7e5 1077 bgp_tm_bgp = bgp;
b98f7728
PG		 1078 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
1079 &bgp_tm_thread_connect);
1080}
1081
1082int bgp_zebra_get_table_range(uint32_t chunk_size,
1083 uint32_t *start, uint32_t *end)
1084{
1085 int ret;
1086
1087 if (!bgp_tm_status_connected)
1088 return -1;
1089 ret = tm_get_table_chunk(zclient, chunk_size, start, end);
1090 if (ret < 0) {
e50f7cfd 1091 flog_err(EC_BGP_TABLE_CHUNK,
1c50c1c0 1092 "BGP: Error getting table chunk %u", chunk_size);
b98f7728
PG		 1093 return -1;
1094 }
1095 zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]",
1096 chunk_size, *start, *end);
1097 return 0;
1098}
1099
3dc339cd
DA		 1100static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1101 struct in_addr *nexthop,
1102 struct attr *attr, bool is_evpn,
1103 struct zapi_nexthop *api_nh)
77e62f2b 1104{
1105 api_nh->gate.ipv4 = *nexthop;
e1e71450 1106 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1107
1108 /* Need to set fields appropriately for EVPN routes imported into
1109 * a VRF (which are programmed as onlink on l3-vni SVI) as well as
1110 * connected routes leaked into a VRF.
1111 */
0789eb69
KM		 1112 if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) {
1113 api_nh->type = attr->nh_type;
1114 api_nh->bh_type = attr->bh_type;
1115 } else if (is_evpn) {
a2299aba
AD		 1116 /*
1117 * If the nexthop is EVPN overlay index gateway IP,
1118 * treat the nexthop as NEXTHOP_TYPE_IPV4
1119 * Else, mark the nexthop as onlink.
1120 */
1121 if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP)
1122 api_nh->type = NEXTHOP_TYPE_IPV4;
1123 else {
1124 api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
1125 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
1126 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1127 }
0789eb69 1128 } else if (nh_othervrf && api_nh->gate.ipv4.s_addr == INADDR_ANY) {
77e62f2b 1129 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1130 api_nh->ifindex = attr->nh_ifindex;
1131 } else
1132 api_nh->type = NEXTHOP_TYPE_IPV4;
1133
3dc339cd 1134 return true;
77e62f2b 1135}
1136
3dc339cd
DA		 1137static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1138 struct in6_addr *nexthop,
1139 ifindex_t ifindex,
1140 struct bgp_path_info *pi,
1141 struct bgp_path_info *best_pi,
1142 bool is_evpn,
1143 struct zapi_nexthop *api_nh)
77e62f2b 1144{
1145 struct attr *attr;
1146
40381db7 1147 attr = pi->attr;
e1e71450 1148 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1149
0789eb69
KM		 1150 if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) {
1151 api_nh->type = attr->nh_type;
1152 api_nh->bh_type = attr->bh_type;
1153 } else if (is_evpn) {
a2299aba
AD		 1154 /*
1155 * If the nexthop is EVPN overlay index gateway IP,
1156 * treat the nexthop as NEXTHOP_TYPE_IPV4
1157 * Else, mark the nexthop as onlink.
1158 */
1159 if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP)
1160 api_nh->type = NEXTHOP_TYPE_IPV6;
1161 else {
1162 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1163 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
1164 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1165 }
e1e71450 1166 } else if (nh_othervrf) {
77e62f2b 1167 if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) {
1168 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1169 api_nh->ifindex = attr->nh_ifindex;
1170 } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
1171 if (ifindex == 0)
3dc339cd 1172 return false;
77e62f2b 1173 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1174 api_nh->ifindex = ifindex;
1175 } else {
1176 api_nh->type = NEXTHOP_TYPE_IPV6;
1177 api_nh->ifindex = 0;
1178 }
1179 } else {
1180 if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
40381db7
DS		 1181 if (pi == best_pi
1182 && attr->mp_nexthop_len
1183 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL)
1184 if (pi->peer->nexthop.ifp)
1185 ifindex =
1186 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1187 if (!ifindex) {
40381db7
DS		 1188 if (pi->peer->conf_if)
1189 ifindex = pi->peer->ifp->ifindex;
1190 else if (pi->peer->ifname)
77e62f2b 1191 ifindex = ifname2ifindex(
40381db7
DS		 1192 pi->peer->ifname,
1193 pi->peer->bgp->vrf_id);
1194 else if (pi->peer->nexthop.ifp)
1195 ifindex =
1196 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1197 }
1198
1199 if (ifindex == 0)
3dc339cd 1200 return false;
77e62f2b 1201 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1202 api_nh->ifindex = ifindex;
1203 } else {
1204 api_nh->type = NEXTHOP_TYPE_IPV6;
1205 api_nh->ifindex = 0;
1206 }
1207 }
0789eb69
KM		 1208 /* api_nh structure has union of gate and bh_type */
1209 if (nexthop && api_nh->type != NEXTHOP_TYPE_BLACKHOLE)
c2ca3e25 1210 api_nh->gate.ipv6 = *nexthop;
77e62f2b 1211
3dc339cd 1212 return true;
77e62f2b 1213}
1214
f7e1c681 1215static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr,
1216 uint64_t tot_bw, uint32_t *nh_weight)
4e30bc2b 1217{
f7e1c681 1218 uint32_t bw;
1219 uint64_t tmp;
1220
1221 bw = attr->link_bw;
1222 /* zero link-bandwidth and link-bandwidth not present are treated
1223 * as the same situation.
1224 */
1225 if (!bw) {
1226 /* the only situations should be if we're either told
1227 * to skip or use default weight.
1228 */
1229 if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING)
1230 return false;
1231 *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT;
1232 } else {
1233 tmp = (uint64_t)bw * 100;
1234 *nh_weight = ((uint32_t)(tmp / tot_bw));
1235 }
1236
1237 return true;
4e30bc2b 1238}
1239
9bcb3eef 1240void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p,
4b7e6066 1241 struct bgp_path_info *info, struct bgp *bgp, afi_t afi,
d62a17ae 1242 safi_t safi)
718e3744 1243{
7cc27d41 1244 struct zapi_route api = { 0 };
9913029c 1245 struct zapi_nexthop *api_nh;
2ad4f093 1246 int nh_family;
a74e593b 1247 unsigned int valid_nh_count = 0;
1a9cb083 1248 bool allow_recursion = false;
d7c0a89a 1249 uint8_t distance;
d62a17ae 1250 struct peer *peer;
4b7e6066 1251 struct bgp_path_info *mpinfo;
d7c0a89a 1252 uint32_t metric;
b4cb15c6 1253 struct attr local_attr;
4b7e6066
DS		 1254 struct bgp_path_info local_info;
1255 struct bgp_path_info *mpinfo_cp = &local_info;
d62a17ae 1256 route_tag_t tag;
1257 mpls_label_t label;
ddb5b488 1258 int nh_othervrf = 0;
3f54c705 1259 bool is_evpn;
06f16b2c 1260 bool nh_updated = false;
4e30bc2b 1261 bool do_wt_ecmp;
1262 uint64_t cum_bw = 0;
6348981a
AK		 1263 uint32_t nhg_id = 0;
1264 bool is_add;
d62a17ae 1265
1266 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1267 * know of this instance.
1268 */
1269 if (!bgp_install_info_to_zebra(bgp))
1270 return;
1271
d62a17ae 1272 if (bgp->main_zebra_update_hold)
1273 return;
1274
d90b788e 1275 if (safi == SAFI_FLOWSPEC) {
9bcb3eef
DS		 1276 bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi,
1277 safi, true);
d90b788e
A		 1278 return;
1279 }
529efa23 1280
ddb5b488
PZ		 1281 /*
1282 * vrf leaking support (will have only one nexthop)
1283 */
1284 if (info->extra && info->extra->bgp_orig)
1285 nh_othervrf = 1;
1286
9913029c 1287 /* Make Zebra API structure. */
9913029c
RW		 1288 api.vrf_id = bgp->vrf_id;
1289 api.type = ZEBRA_ROUTE_BGP;
1290 api.safi = safi;
1291 api.prefix = *p;
1292 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
1293
d62a17ae 1294 peer = info->peer;
1295
ddb5b488
PZ		 1296 if (info->type == ZEBRA_ROUTE_BGP
1297 && info->sub_type == BGP_ROUTE_IMPORTED) {
1298
1ec90b5e 1299 /* Obtain peer from parent */
1300 if (info->extra && info->extra->parent)
4b7e6066
DS		 1301 peer = ((struct bgp_path_info *)(info->extra->parent))
1302 ->peer;
ddb5b488
PZ		 1303 }
1304
d62a17ae 1305 tag = info->attr->tag;
1306
88493076 1307 /* If the route's source is EVPN, flag as such. */
77e62f2b 1308 is_evpn = is_route_parent_evpn(info);
1309 if (is_evpn)
90264d64 1310 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
d3135ba3 1311
d62a17ae 1312 if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED
1313 || info->sub_type == BGP_ROUTE_AGGREGATE) {
9913029c 1314 SET_FLAG(api.flags, ZEBRA_FLAG_IBGP);
4e8b02f4 1315 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
718e3744 1316 }
a39275d7 1317
c8d6f0d6 1318 if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL)
d62a17ae 1319 || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)
892fedb6 1320 || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK))
d62a17ae 1321
1a9cb083 1322 allow_recursion = true;
d62a17ae 1323
951745bd
PG		 1324 if (info->attr->rmap_table_id) {
1325 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1326 api.tableid = info->attr->rmap_table_id;
1327 }
1328
ef3e0d04
SM		 1329 if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1330 SET_FLAG(api.message, ZAPI_MESSAGE_SRTE);
1331
2ad4f093
RW		 1332 /* Metric is currently based on the best-path only */
1333 metric = info->attr->med;
4e30bc2b 1334
1335 /* Determine if we're doing weighted ECMP or not */
f7e1c681 1336 do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info);
4e30bc2b 1337 if (do_wt_ecmp)
1338 cum_bw = bgp_path_info_mpath_cumbw(info);
1339
6348981a 1340 /* EVPN MAC-IP routes are installed with a L3 NHG id */
8bcb09a1 1341 if (bgp_evpn_path_es_use_nhg(bgp, info, &nhg_id)) {
6348981a 1342 mpinfo = NULL;
8bcb09a1
AK		 1343 api.nhgid = nhg_id;
1344 if (nhg_id)
1345 SET_FLAG(api.message, ZAPI_MESSAGE_NHG);
1346 } else {
6348981a 1347 mpinfo = info;
8bcb09a1 1348 }
6348981a
AK		 1349
1350 for (; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) {
f7e1c681 1351 uint32_t nh_weight;
1352
a74e593b
RW		 1353 if (valid_nh_count >= multipath_num)
1354 break;
1355
b4cb15c6 1356 *mpinfo_cp = *mpinfo;
f7e1c681 1357 nh_weight = 0;
b4cb15c6 1358
d0d695f4
RW		 1359 /* Get nexthop address-family */
1360 if (p->family == AF_INET
1361 && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))
1362 nh_family = AF_INET;
1363 else if (p->family == AF_INET6
1364 || (p->family == AF_INET
1365 && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)))
1366 nh_family = AF_INET6;
1367 else
1368 continue;
1369
f7e1c681 1370 /* If processing for weighted ECMP, determine the next hop's
1371 * weight. Based on user setting, we may skip the next hop
1372 * in some situations.
1373 */
1374 if (do_wt_ecmp) {
1375 if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr,
1376 cum_bw, &nh_weight))
1377 continue;
1378 }
1374aec9 1379 api_nh = &api.nexthops[valid_nh_count];
ef3e0d04
SM		 1380
1381 if (CHECK_FLAG(info->attr->flag,
1382 ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1383 api_nh->srte_color = info->attr->srte_color;
1384
257b7b6e
DS		 1385 if (bgp_debug_zebra(&api.prefix)) {
1386 if (mpinfo->extra) {
70492dea
DS		 1387 zlog_debug("%s: p=%pFX, bgp_is_valid_label: %d",
1388 __func__, p,
257b7b6e
DS		 1389 bgp_is_valid_label(
1390 &mpinfo->extra->label[0]));
1391 } else {
70492dea
DS		 1392 zlog_debug(
1393 "%s: p=%pFX, extra is NULL, no label",
1394 __func__, p);
ddb5b488 1395 }
257b7b6e 1396 }
ddb5b488 1397
257b7b6e
DS		 1398 if (bgp->table_map[afi][safi].name) {
1399 /* Copy info and attributes, so the route-map
1400 apply doesn't modify the BGP route info. */
1401 local_attr = *mpinfo->attr;
1402 mpinfo_cp->attr = &local_attr;
1403 if (!bgp_table_map_apply(bgp->table_map[afi][safi].map,
1404 p, mpinfo_cp))
1405 continue;
b4cb15c6 1406
257b7b6e
DS		 1407 /* metric/tag is only allowed to be
1408 * overridden on 1st nexthop */
1409 if (mpinfo == info) {
1410 metric = mpinfo_cp->attr->med;
1411 tag = mpinfo_cp->attr->tag;
b4cb15c6 1412 }
257b7b6e 1413 }
d62a17ae 1414
257b7b6e 1415 if (nh_family == AF_INET) {
77e62f2b 1416 nh_updated = update_ipv4nh_for_route_install(
1417 nh_othervrf,
e1e71450 1418 nh_othervrf ?
1419 info->extra->bgp_orig : bgp,
77e62f2b 1420 &mpinfo_cp->attr->nexthop,
1421 mpinfo_cp->attr, is_evpn, api_nh);
2ad4f093 1422 } else {
f220da99 1423 ifindex_t ifindex = IFINDEX_INTERNAL;
2ad4f093 1424 struct in6_addr *nexthop;
9913029c 1425
18ee8310
DS		 1426 nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp,
1427 &ifindex);
00c10664
DA		 1428
1429 if (!nexthop)
1430 nh_updated = update_ipv4nh_for_route_install(
1431 nh_othervrf,
1432 nh_othervrf ? info->extra->bgp_orig
1433 : bgp,
1434 &mpinfo_cp->attr->nexthop,
1435 mpinfo_cp->attr, is_evpn, api_nh);
1436 else
1437 nh_updated = update_ipv6nh_for_route_install(
1438 nh_othervrf,
1439 nh_othervrf ? info->extra->bgp_orig
1440 : bgp,
1441 nexthop, ifindex, mpinfo, info, is_evpn,
1442 api_nh);
2ad4f093 1443 }
d62a17ae 1444
77e62f2b 1445 /* Did we get proper nexthop info to update zebra? */
1446 if (!nh_updated)
1447 continue;
1448
1a9cb083
JM		 1449 /* Allow recursion if it is a multipath group with both
1450 * eBGP and iBGP paths.
1451 */
1452 if (!allow_recursion
1453 && CHECK_FLAG(bgp->flags, BGP_FLAG_PEERTYPE_MULTIPATH_RELAX)
1454 && (mpinfo->peer->sort == BGP_PEER_IBGP
1455 || mpinfo->peer->sort == BGP_PEER_CONFED))
1456 allow_recursion = true;
1457
a4d82a8a
PZ		 1458 if (mpinfo->extra
1459 && bgp_is_valid_label(&mpinfo->extra->label[0])
90264d64 1460 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
b57ba6d2 1461 label = label_pton(&mpinfo->extra->label[0]);
9913029c 1462
68a02e06
MS		 1463 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL);
1464
2ad4f093
RW		 1465 api_nh->label_num = 1;
1466 api_nh->labels[0] = label;
d62a17ae 1467 }
a2299aba
AD		 1468
1469 if (is_evpn
1470 && mpinfo->attr->evpn_overlay.type
1471 != OVERLAY_INDEX_GATEWAY_IP)
1472 memcpy(&api_nh->rmac, &(mpinfo->attr->rmac),
1473 sizeof(struct ethaddr));
1474
f7e1c681 1475 api_nh->weight = nh_weight;
4e30bc2b 1476
16f3db2d 1477 if (mpinfo->extra && !sid_zero(&mpinfo->extra->sid[0].sid)
53a4de82 1478 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
16f3db2d 1479 memcpy(&api_nh->seg6_segs, &mpinfo->extra->sid[0].sid,
53a4de82 1480 sizeof(api_nh->seg6_segs));
09e06fcf
RS		 1481
1482 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6);
53a4de82
HS		 1483 }
1484
2ad4f093
RW		 1485 valid_nh_count++;
1486 }
d62a17ae 1487
6348981a
AK		 1488 is_add = (valid_nh_count || nhg_id) ? true : false;
1489
ec0acb80 1490 if (is_add && CHECK_FLAG(bm->flags, BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA)) {
94effaf0 1491 struct bgp_zebra_opaque bzo = {};
1d7260a1
DA		 1492 const char *reason =
1493 bgp_path_selection_reason2str(dest->reason);
94effaf0
DA		 1494
1495 strlcpy(bzo.aspath, info->attr->aspath->str,
1496 sizeof(bzo.aspath));
1497
1498 if (info->attr->flag & ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES))
1499 strlcpy(bzo.community, info->attr->community->str,
1500 sizeof(bzo.community));
1501
1502 if (info->attr->flag
1503 & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES))
1504 strlcpy(bzo.lcommunity, info->attr->lcommunity->str,
1505 sizeof(bzo.lcommunity));
e46723a5 1506
1d7260a1
DA		 1507 strlcpy(bzo.selection_reason, reason,
1508 sizeof(bzo.selection_reason));
1509
e46723a5 1510 SET_FLAG(api.message, ZAPI_MESSAGE_OPAQUE);
94effaf0
DA		 1511 api.opaque.length = MIN(sizeof(struct bgp_zebra_opaque),
1512 ZAPI_MESSAGE_OPAQUE_LENGTH);
1513 memcpy(api.opaque.data, &bzo, api.opaque.length);
e46723a5
DS		 1514 }
1515
1a9cb083
JM		 1516 if (allow_recursion)
1517 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
1518
5cc347c4
DS		 1519 /*
1520 * When we create an aggregate route we must also
1521 * install a Null0 route in the RIB, so overwrite
1522 * what was written into api with a blackhole route
1523 */
1524 if (info->sub_type == BGP_ROUTE_AGGREGATE)
1525 zapi_route_set_blackhole(&api, BLACKHOLE_NULL);
1526 else
2ad4f093 1527 api.nexthop_num = valid_nh_count;
d62a17ae 1528
2ad4f093
RW		 1529 SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
1530 api.metric = metric;
d62a17ae 1531
2ad4f093
RW		 1532 if (tag) {
1533 SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
1534 api.tag = tag;
1535 }
d62a17ae 1536
2ad4f093
RW		 1537 distance = bgp_distance_apply(p, info, afi, safi, bgp);
1538 if (distance) {
1539 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
1540 api.distance = distance;
1541 }
d62a17ae 1542
2ad4f093 1543 if (bgp_debug_zebra(p)) {
2ad4f093 1544 char nh_buf[INET6_ADDRSTRLEN];
d8744f72
CS		 1545 char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'};
1546 char buf1[ETHER_ADDR_STRLEN];
2ad4f093 1547 char label_buf[20];
53a4de82
HS		 1548 char sid_buf[20];
1549 char segs_buf[256];
2ad4f093
RW		 1550 int i;
1551
2dbe669b
DA		 1552 zlog_debug(
1553 "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI
6348981a 1554 " count %d nhg %d",
2dbe669b 1555 valid_nh_count ? "add" : "delete", bgp->vrf_id,
6348981a
AK		 1556 &api.prefix, api.metric, api.tag, api.nexthop_num,
1557 nhg_id);
2ad4f093
RW		 1558 for (i = 0; i < api.nexthop_num; i++) {
1559 api_nh = &api.nexthops[i];
1560
1ee069db
CS		 1561 switch (api_nh->type) {
1562 case NEXTHOP_TYPE_IFINDEX:
77e62f2b 1563 nh_buf[0] = '\0';
1ee069db
CS		 1564 break;
1565 case NEXTHOP_TYPE_IPV4:
1566 case NEXTHOP_TYPE_IPV4_IFINDEX:
1567 nh_family = AF_INET;
77e62f2b 1568 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1569 sizeof(nh_buf));
1ee069db
CS		 1570 break;
1571 case NEXTHOP_TYPE_IPV6:
1572 case NEXTHOP_TYPE_IPV6_IFINDEX:
1573 nh_family = AF_INET6;
1574 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1575 sizeof(nh_buf));
1576 break;
1577 case NEXTHOP_TYPE_BLACKHOLE:
1578 strlcpy(nh_buf, "blackhole", sizeof(nh_buf));
1579 break;
1580 default:
1581 /* Note: add new nexthop case */
1582 assert(0);
1583 break;
77e62f2b 1584 }
2ad4f093
RW		 1585
1586 label_buf[0] = '\0';
d8744f72 1587 eth_buf[0] = '\0';
bbf32574 1588 segs_buf[0] = '\0';
cd18af00 1589 if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL)
a4d82a8a 1590 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))
a7799788
CS		 1591 snprintf(label_buf, sizeof(label_buf),
1592 "label %u", api_nh->labels[0]);
09e06fcf 1593 if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6)
53a4de82
HS		 1594 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
1595 inet_ntop(AF_INET6, &api_nh->seg6_segs,
1596 sid_buf, sizeof(sid_buf));
1597 snprintf(segs_buf, sizeof(segs_buf), "segs %s",
1598 sid_buf);
1599 }
d8744f72
CS		 1600 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)
1601 && !is_zero_mac(&api_nh->rmac))
a7799788
CS		 1602 snprintf(eth_buf, sizeof(eth_buf), " RMAC %s",
1603 prefix_mac2str(&api_nh->rmac,
1604 buf1, sizeof(buf1)));
53a4de82 1605 zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s %s",
77e62f2b 1606 i + 1, nh_buf, api_nh->ifindex,
4e30bc2b 1607 api_nh->vrf_id, api_nh->weight,
53a4de82 1608 label_buf, segs_buf, eth_buf);
d62a17ae 1609 }
2ad4f093 1610
960035b2
PZ		 1611 int recursion_flag = 0;
1612
1613 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION))
1614 recursion_flag = 1;
1615
70492dea
DS		 1616 zlog_debug("%s: %pFX: announcing to zebra (recursion %sset)",
1617 __func__, p, (recursion_flag ? "" : "NOT "));
960035b2 1618 }
6348981a 1619 zclient_route_send(is_add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE,
2ad4f093 1620 zclient, &api);
718e3744 1621}
1622
73ac8160 1623/* Announce all routes of a table to zebra */
d62a17ae 1624void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi)
73ac8160 1625{
9bcb3eef 1626 struct bgp_dest *dest;
d62a17ae 1627 struct bgp_table *table;
40381db7 1628 struct bgp_path_info *pi;
d62a17ae 1629
1630 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1631 * know of this instance.
1632 */
1633 if (!bgp_install_info_to_zebra(bgp))
1634 return;
1635
1636 table = bgp->rib[afi][safi];
1637 if (!table)
1638 return;
1639
9bcb3eef
DS		 1640 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1641 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
40381db7 1642 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
ddb5b488 1643
40381db7
DS		 1644 (pi->type == ZEBRA_ROUTE_BGP
1645 && (pi->sub_type == BGP_ROUTE_NORMAL
1646 || pi->sub_type == BGP_ROUTE_IMPORTED)))
ddb5b488 1647
9bcb3eef
DS		 1648 bgp_zebra_announce(dest,
1649 bgp_dest_get_prefix(dest),
b54892e0 1650 pi, bgp, afi, safi);
73ac8160
DS		 1651}
1652
c163f297
DS		 1653/* Announce routes of any bgp subtype of a table to zebra */
1654void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi,
1655 safi_t safi)
1656{
1657 struct bgp_dest *dest;
1658 struct bgp_table *table;
1659 struct bgp_path_info *pi;
1660
1661 if (!bgp_install_info_to_zebra(bgp))
1662 return;
1663
1664 table = bgp->rib[afi][safi];
1665 if (!table)
1666 return;
1667
1668 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1669 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
1670 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
1671 pi->type == ZEBRA_ROUTE_BGP)
1672 bgp_zebra_announce(dest,
1673 bgp_dest_get_prefix(dest),
1674 pi, bgp, afi, safi);
1675}
1676
5a1ae2c2 1677void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info,
568e10ca 1678 struct bgp *bgp, safi_t safi)
718e3744 1679{
2ad4f093 1680 struct zapi_route api;
f7df1907 1681 struct peer *peer;
ddb5b488 1682
d62a17ae 1683 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1684 * know of this instance.
1685 */
568e10ca 1686 if (!bgp_install_info_to_zebra(bgp))
d62a17ae 1687 return;
1688
f7df1907
PG		 1689 if (safi == SAFI_FLOWSPEC) {
1690 peer = info->peer;
d90b788e
A		 1691 bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false);
1692 return;
f7df1907 1693 }
529efa23 1694
2ad4f093 1695 memset(&api, 0, sizeof(api));
568e10ca 1696 api.vrf_id = bgp->vrf_id;
2ad4f093
RW		 1697 api.type = ZEBRA_ROUTE_BGP;
1698 api.safi = safi;
1699 api.prefix = *p;
d62a17ae 1700
1276ce38
PG		 1701 if (info->attr->rmap_table_id) {
1702 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1703 api.tableid = info->attr->rmap_table_id;
1704 }
1705
88493076 1706 /* If the route's source is EVPN, flag as such. */
1707 if (is_route_parent_evpn(info))
90264d64 1708 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
01740ff4 1709
2dbe669b
DA		 1710 if (bgp_debug_zebra(p))
1711 zlog_debug("Tx route delete VRF %u %pFX", bgp->vrf_id,
1712 &api.prefix);
d62a17ae 1713
2ad4f093 1714 zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
718e3744 1715}
56c1f7d8 1716
c163f297
DS		 1717/* Withdraw all entries in a BGP instances RIB table from Zebra */
1718void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi)
1719{
1720 struct bgp_dest *dest;
1721 struct bgp_table *table;
1722 struct bgp_path_info *pi;
1723
1724 if (!bgp_install_info_to_zebra(bgp))
1725 return;
1726
1727 table = bgp->rib[afi][safi];
1728 if (!table)
1729 return;
1730
1731 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) {
1732 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
1733 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)
1734 && (pi->type == ZEBRA_ROUTE_BGP))
1735 bgp_zebra_withdraw(bgp_dest_get_prefix(dest),
1736 pi, bgp, safi);
1737 }
1738 }
1739}
1740
d7c0a89a
QY		 1741struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type,
1742 unsigned short instance)
7c8ff89e 1743{
d62a17ae 1744 struct list *red_list;
1745 struct listnode *node;
1746 struct bgp_redist *red;
7c8ff89e 1747
d62a17ae 1748 red_list = bgp->redist[afi][type];
1749 if (!red_list)
1750 return (NULL);
7c8ff89e 1751
d62a17ae 1752 for (ALL_LIST_ELEMENTS_RO(red_list, node, red))
1753 if (red->instance == instance)
1754 return red;
7c8ff89e 1755
d62a17ae 1756 return NULL;
7c8ff89e
DS		 1757}
1758
d7c0a89a
QY		 1759struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type,
1760 unsigned short instance)
7c8ff89e 1761{
d62a17ae 1762 struct list *red_list;
1763 struct bgp_redist *red;
7c8ff89e 1764
d62a17ae 1765 red = bgp_redist_lookup(bgp, afi, type, instance);
1766 if (red)
1767 return red;
7c8ff89e 1768
d62a17ae 1769 if (!bgp->redist[afi][type])
1770 bgp->redist[afi][type] = list_new();
7c8ff89e 1771
d62a17ae 1772 red_list = bgp->redist[afi][type];
9f5dc319 1773 red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist));
d62a17ae 1774 red->instance = instance;
7c8ff89e 1775
d62a17ae 1776 listnode_add(red_list, red);
7c8ff89e 1777
d62a17ae 1778 return red;
7c8ff89e
DS		 1779}
1780
d7c0a89a
QY		 1781static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type,
1782 unsigned short instance)
7c8ff89e 1783{
d62a17ae 1784 struct bgp_redist *red;
1785
1786 red = bgp_redist_lookup(bgp, afi, type, instance);
1787
1788 if (red) {
1789 listnode_delete(bgp->redist[afi][type], red);
1790 XFREE(MTYPE_BGP_REDIST, red);
acdf5e25 1791 if (!bgp->redist[afi][type]->count)
6a154c88 1792 list_delete(&bgp->redist[afi][type]);
d62a17ae 1793 }
7c8ff89e 1794}
6b0655a2 1795
718e3744 1796/* Other routes redistribution into BGP. */
d7c0a89a 1797int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type,
e923dd62 1798 unsigned short instance, bool changed)
718e3744 1799{
e923dd62 1800 /* If redistribute options are changed call
1801 * bgp_redistribute_unreg() to reset the option and withdraw
1802 * the routes
1803 */
1804 if (changed)
1805 bgp_redistribute_unreg(bgp, afi, type, instance);
718e3744 1806
d62a17ae 1807 /* Return if already redistribute flag is set. */
1808 if (instance) {
1809 if (redist_check_instance(&zclient->mi_redist[afi][type],
1810 instance))
1811 return CMD_WARNING;
718e3744 1812
d62a17ae 1813 redist_add_instance(&zclient->mi_redist[afi][type], instance);
1814 } else {
d9083050
IR		 1815 if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1816 return CMD_WARNING;
1817
49e5a4a0 1818#ifdef ENABLE_BGP_VNC
f920dd6d 1819 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
d62a17ae 1820 vnc_export_bgp_enable(
1821 bgp, afi); /* only enables if mode bits cfg'd */
1822 }
65efcfce
LB		 1823#endif
1824
d62a17ae 1825 vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id);
1826 }
718e3744 1827
ea12cf11
DS		 1828 /*
1829 * Don't try to register if we're not connected to Zebra or Zebra
1830 * doesn't know of this instance.
1831 *
1832 * When we come up later well resend if needed.
d62a17ae 1833 */
1834 if (!bgp_install_info_to_zebra(bgp))
ea12cf11 1835 return CMD_SUCCESS;
a39275d7 1836
d62a17ae 1837 if (BGP_DEBUG(zebra, ZEBRA))
1838 zlog_debug("Tx redistribute add VRF %u afi %d %s %d",
1839 bgp->vrf_id, afi, zebra_route_string(type),
1840 instance);
518f0eb1 1841
d62a17ae 1842 /* Send distribute add message to zebra. */
1843 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1844 instance, bgp->vrf_id);
718e3744 1845
d62a17ae 1846 return CMD_SUCCESS;
718e3744 1847}
1848
d62a17ae 1849int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1850 unsigned short instance)
518f0eb1 1851{
d62a17ae 1852 /* Don't try to send if we're not connected to Zebra or Zebra doesn't
1853 * know of this instance.
1854 */
1855 if (!bgp_install_info_to_zebra(bgp))
1856 return -1;
1857
1858 if (BGP_DEBUG(zebra, ZEBRA))
1859 zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d",
1860 bgp->vrf_id, afi, zebra_route_string(type),
1861 instance);
1862
1863 /* Send distribute add message to zebra. */
1864 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type,
1865 instance, bgp->vrf_id);
1866 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1867 instance, bgp->vrf_id);
1868
1869 return 0;
518f0eb1
DS		 1870}
1871
718e3744 1872/* Redistribute with route-map specification. */
3dc339cd
DA		 1873bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name,
1874 struct route_map *route_map)
718e3744 1875{
d62a17ae 1876 if (red->rmap.name && (strcmp(red->rmap.name, name) == 0))
3dc339cd 1877 return false;
718e3744 1878
0a22ddfb 1879 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1880 /* Decrement the count for existing routemap and
1881 * increment the count for new route map.
1882 */
1883 route_map_counter_decrement(red->rmap.map);
d62a17ae 1884 red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name);
1de27621 1885 red->rmap.map = route_map;
b4897fa5 1886 route_map_counter_increment(red->rmap.map);
718e3744 1887
3dc339cd 1888 return true;
718e3744 1889}
1890
1891/* Redistribute with metric specification. */
3dc339cd
DA		 1892bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red,
1893 afi_t afi, int type, uint32_t metric)
718e3744 1894{
9bcb3eef 1895 struct bgp_dest *dest;
40381db7 1896 struct bgp_path_info *pi;
d62a17ae 1897
1898 if (red->redist_metric_flag && red->redist_metric == metric)
3dc339cd 1899 return false;
d62a17ae 1900
1901 red->redist_metric_flag = 1;
1902 red->redist_metric = metric;
1903
9bcb3eef
DS		 1904 for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest;
1905 dest = bgp_route_next(dest)) {
1906 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
40381db7
DS		 1907 if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE
1908 && pi->type == type
1909 && pi->instance == red->instance) {
d62a17ae 1910 struct attr *old_attr;
1911 struct attr new_attr;
1912
6f4f49b2 1913 new_attr = *pi->attr;
d62a17ae 1914 new_attr.med = red->redist_metric;
40381db7
DS		 1915 old_attr = pi->attr;
1916 pi->attr = bgp_attr_intern(&new_attr);
d62a17ae 1917 bgp_attr_unintern(&old_attr);
1918
9bcb3eef 1919 bgp_path_info_set_flag(dest, pi,
18ee8310 1920 BGP_PATH_ATTR_CHANGED);
9bcb3eef 1921 bgp_process(bgp, dest, afi, SAFI_UNICAST);
d62a17ae 1922 }
1923 }
1924 }
1925
3dc339cd 1926 return true;
718e3744 1927}
1928
1929/* Unset redistribution. */
d62a17ae 1930int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1931 unsigned short instance)
718e3744 1932{
d62a17ae 1933 struct bgp_redist *red;
1934
1935 red = bgp_redist_lookup(bgp, afi, type, instance);
1936 if (!red)
1937 return CMD_SUCCESS;
1938
1939 /* Return if zebra connection is disabled. */
1940 if (instance) {
1941 if (!redist_check_instance(&zclient->mi_redist[afi][type],
1942 instance))
1943 return CMD_WARNING;
1944 redist_del_instance(&zclient->mi_redist[afi][type], instance);
1945 } else {
1946 if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1947 return CMD_WARNING;
1948 vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id);
1949 }
718e3744 1950
d62a17ae 1951 if (bgp_install_info_to_zebra(bgp)) {
1952 /* Send distribute delete message to zebra. */
1953 if (BGP_DEBUG(zebra, ZEBRA))
1954 zlog_debug("Tx redistribute del VRF %u afi %d %s %d",
1955 bgp->vrf_id, afi, zebra_route_string(type),
1956 instance);
1957 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi,
1958 type, instance, bgp->vrf_id);
1959 }
1960
1961 /* Withdraw redistributed routes from current BGP's routing table. */
1962 bgp_redistribute_withdraw(bgp, afi, type, instance);
1963
1964 return CMD_SUCCESS;
718e3744 1965}
1966
6aeb9e78 1967/* Unset redistribution. */
d62a17ae 1968int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1969 unsigned short instance)
6aeb9e78 1970{
d62a17ae 1971 struct bgp_redist *red;
6aeb9e78 1972
ddb5b488
PZ		 1973/*
1974 * vnc and vpn->vrf checks must be before red check because
1975 * they operate within bgpd irrespective of zebra connection
1976 * status. red lookup fails if there is no zebra connection.
1977 */
49e5a4a0 1978#ifdef ENABLE_BGP_VNC
f920dd6d 1979 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
ddb5b488
PZ		 1980 vnc_export_bgp_disable(bgp, afi);
1981 }
1982#endif
ddb5b488 1983
d62a17ae 1984 red = bgp_redist_lookup(bgp, afi, type, instance);
1985 if (!red)
1986 return CMD_SUCCESS;
6aeb9e78 1987
d62a17ae 1988 bgp_redistribute_unreg(bgp, afi, type, instance);
6aeb9e78 1989
d62a17ae 1990 /* Unset route-map. */
0a22ddfb 1991 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1992 route_map_counter_decrement(red->rmap.map);
d62a17ae 1993 red->rmap.map = NULL;
6aeb9e78 1994
d62a17ae 1995 /* Unset metric. */
1996 red->redist_metric_flag = 0;
1997 red->redist_metric = 0;
6aeb9e78 1998
d62a17ae 1999 bgp_redist_del(bgp, afi, type, instance);
6aeb9e78 2000
d62a17ae 2001 return CMD_SUCCESS;
6aeb9e78
DS		 2002}
2003
fc2408ec
DS		 2004void bgp_redistribute_redo(struct bgp *bgp)
2005{
2006 afi_t afi;
2007 int i;
2008 struct list *red_list;
2009 struct listnode *node;
2010 struct bgp_redist *red;
2011
2012 for (afi = AFI_IP; afi < AFI_MAX; afi++) {
2013 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
2014
2015 red_list = bgp->redist[afi][i];
2016 if (!red_list)
2017 continue;
2018
2019 for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) {
2020 bgp_redistribute_resend(bgp, afi, i,
2021 red->instance);
2022 }
2023 }
2024 }
2025}
2026
d62a17ae 2027void bgp_zclient_reset(void)
718e3744 2028{
d62a17ae 2029 zclient_reset(zclient);
718e3744 2030}
2031
ad4cbda1 2032/* Register this instance with Zebra. Invoked upon connect (for
2033 * default instance) and when other VRFs are learnt (or created and
2034 * already learnt).
2035 */
d62a17ae 2036void bgp_zebra_instance_register(struct bgp *bgp)
ad4cbda1 2037{
d62a17ae 2038 /* Don't try to register if we're not connected to Zebra */
2039 if (!zclient || zclient->sock < 0)
2040 return;
ad4cbda1 2041
d62a17ae 2042 if (BGP_DEBUG(zebra, ZEBRA))
2043 zlog_debug("Registering VRF %u", bgp->vrf_id);
ad4cbda1 2044
d62a17ae 2045 /* Register for router-id, interfaces, redistributed routes. */
2046 zclient_send_reg_requests(zclient, bgp->vrf_id);
7724c0a1 2047
e2f3a930
T		 2048 /* For EVPN instance, register to learn about VNIs, if appropriate. */
2049 if (bgp->advertise_all_vni)
d62a17ae 2050 bgp_zebra_advertise_all_vni(bgp, 1);
1ee0a2df
DS		 2051
2052 bgp_nht_register_nexthops(bgp);
ad4cbda1 2053}
2054
2055/* Deregister this instance with Zebra. Invoked upon the instance
2056 * being deleted (default or VRF) and it is already registered.
2057 */
d62a17ae 2058void bgp_zebra_instance_deregister(struct bgp *bgp)
ad4cbda1 2059{
d62a17ae 2060 /* Don't try to deregister if we're not connected to Zebra */
2061 if (zclient->sock < 0)
2062 return;
ad4cbda1 2063
d62a17ae 2064 if (BGP_DEBUG(zebra, ZEBRA))
2065 zlog_debug("Deregistering VRF %u", bgp->vrf_id);
ad4cbda1 2066
e2f3a930
T		 2067 /* For EVPN instance, unregister learning about VNIs, if appropriate. */
2068 if (bgp->advertise_all_vni)
d62a17ae 2069 bgp_zebra_advertise_all_vni(bgp, 0);
7724c0a1 2070
d62a17ae 2071 /* Deregister for router-id, interfaces, redistributed routes. */
2072 zclient_send_dereg_requests(zclient, bgp->vrf_id);
ad4cbda1 2073}
2074
d62a17ae 2075void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 2076{
bbad0276 2077 uint32_t ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL;
5c81b96a 2078
d62a17ae 2079 /* Don't try to initiate if we're not connected to Zebra */
2080 if (zclient->sock < 0)
2081 return;
4a04e5f7 2082
d62a17ae 2083 if (BGP_DEBUG(zebra, ZEBRA))
2084 zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id,
2085 peer->host);
4a04e5f7 2086
b3a3290e
DS		 2087 /*
2088 * If unnumbered peer (peer->ifp) call thru zapi to start RAs.
2089 * If we don't have an ifp pointer, call function to find the
2090 * ifps for a numbered enhe peer to turn RAs on.
2091 */
2092 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
2093 peer->ifp, 1, ra_interval)
2094 : bgp_nht_reg_enhe_cap_intfs(peer);
4a04e5f7 2095}
2096
d62a17ae 2097void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 2098{
d62a17ae 2099 /* Don't try to terminate if we're not connected to Zebra */
2100 if (zclient->sock < 0)
2101 return;
4a04e5f7 2102
d62a17ae 2103 if (BGP_DEBUG(zebra, ZEBRA))
2104 zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id,
2105 peer->host);
4a04e5f7 2106
b3a3290e
DS		 2107 /*
2108 * If unnumbered peer (peer->ifp) call thru zapi to stop RAs.
2109 * If we don't have an ifp pointer, call function to find the
2110 * ifps for a numbered enhe peer to turn RAs off.
2111 */
2112 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
2113 peer->ifp, 0, 0)
2114 : bgp_nht_dereg_enhe_cap_intfs(peer);
4a04e5f7 2115}
2116
31310b25
MK		 2117int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni)
2118{
2119 struct stream *s = NULL;
2120
2121 /* Check socket. */
2122 if (!zclient || zclient->sock < 0)
2123 return 0;
2124
2125 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2126 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2127 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2128 zlog_debug(
2129 "%s: No zebra instance to talk to, cannot advertise subnet",
2130 __func__);
31310b25 2131 return 0;
bb4ef1ae 2132 }
31310b25
MK		 2133
2134 s = zclient->obuf;
2135 stream_reset(s);
2136
2137 zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id);
2138 stream_putc(s, advertise);
2139 stream_put3(s, vni);
2140 stream_putw_at(s, 0, stream_get_endp(s));
2141
2142 return zclient_send_message(zclient);
2143}
2144
a8016157
CS		 2145int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni)
2146{
2147 struct stream *s = NULL;
2148
2149 /* Check socket. */
2150 if (!zclient || zclient->sock < 0)
2151 return 0;
2152
2153 /* Don't try to register if Zebra doesn't know of this instance. */
2154 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2155 return 0;
2156
2157 s = zclient->obuf;
2158 stream_reset(s);
2159
2160 zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id);
2161 stream_putc(s, advertise);
2162 stream_putl(s, vni);
2163 stream_putw_at(s, 0, stream_get_endp(s));
2164
2165 return zclient_send_message(zclient);
2166}
2167
1a98c087
MK		 2168int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni)
2169{
2170 struct stream *s = NULL;
2171
2172 /* Check socket. */
2173 if (!zclient || zclient->sock < 0)
2174 return 0;
2175
2176 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2177 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2178 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2179 zlog_debug(
2180 "%s: No zebra instance to talk to, not installing gw_macip",
2181 __func__);
1a98c087 2182 return 0;
bb4ef1ae 2183 }
1a98c087
MK		 2184
2185 s = zclient->obuf;
2186 stream_reset(s);
2187
2188 zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id);
2189 stream_putc(s, advertise);
cc6d5476 2190 stream_putl(s, vni);
1a98c087
MK		 2191 stream_putw_at(s, 0, stream_get_endp(s));
2192
2193 return zclient_send_message(zclient);
2194}
2195
fd069644
DS		 2196int bgp_zebra_vxlan_flood_control(struct bgp *bgp,
2197 enum vxlan_flood_control flood_ctrl)
2198{
2199 struct stream *s;
2200
2201 /* Check socket. */
2202 if (!zclient || zclient->sock < 0)
2203 return 0;
2204
2205 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2206 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2207 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2208 zlog_debug(
2209 "%s: No zebra instance to talk to, not installing all vni",
2210 __func__);
fd069644 2211 return 0;
bb4ef1ae 2212 }
fd069644
DS		 2213
2214 s = zclient->obuf;
2215 stream_reset(s);
2216
2217 zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id);
2218 stream_putc(s, flood_ctrl);
2219 stream_putw_at(s, 0, stream_get_endp(s));
2220
2221 return zclient_send_message(zclient);
2222}
2223
d62a17ae 2224int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise)
7724c0a1 2225{
d62a17ae 2226 struct stream *s;
7724c0a1 2227
d62a17ae 2228 /* Check socket. */
2229 if (!zclient || zclient->sock < 0)
2230 return 0;
7724c0a1 2231
d62a17ae 2232 /* Don't try to register if Zebra doesn't know of this instance. */
2233 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2234 return 0;
7724c0a1 2235
d62a17ae 2236 s = zclient->obuf;
2237 stream_reset(s);
7724c0a1 2238
d62a17ae 2239 zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id);
2240 stream_putc(s, advertise);
fbac9605
DS		 2241 /* Also inform current BUM handling setting. This is really
2242 * relevant only when 'advertise' is set.
2243 */
fd069644 2244 stream_putc(s, bgp->vxlan_flood_ctrl);
d62a17ae 2245 stream_putw_at(s, 0, stream_get_endp(s));
7724c0a1 2246
d62a17ae 2247 return zclient_send_message(zclient);
7724c0a1 2248}
2249
0b9d9cd0
CS		 2250int bgp_zebra_dup_addr_detection(struct bgp *bgp)
2251{
2252 struct stream *s;
2253
2254 /* Check socket. */
2255 if (!zclient || zclient->sock < 0)
2256 return 0;
2257
2258 /* Don't try to register if Zebra doesn't know of this instance. */
2259 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2260 return 0;
2261
2262 if (BGP_DEBUG(zebra, ZEBRA))
2263 zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u",
2264 bgp->evpn_info->dup_addr_detect ?
2265 "enable" : "disable",
2266 bgp->evpn_info->dad_max_moves,
2267 bgp->evpn_info->dad_time,
2268 bgp->evpn_info->dad_freeze ?
2269 "enable" : "disable",
2270 bgp->evpn_info->dad_freeze_time);
2271
2272 s = zclient->obuf;
2273 stream_reset(s);
2274 zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION,
2275 bgp->vrf_id);
2276 stream_putl(s, bgp->evpn_info->dup_addr_detect);
2277 stream_putl(s, bgp->evpn_info->dad_time);
2278 stream_putl(s, bgp->evpn_info->dad_max_moves);
2279 stream_putl(s, bgp->evpn_info->dad_freeze);
2280 stream_putl(s, bgp->evpn_info->dad_freeze_time);
2281 stream_putw_at(s, 0, stream_get_endp(s));
2282
2283 return zclient_send_message(zclient);
2284}
2285
121f9dee 2286static int rule_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2287{
2288 uint32_t seqno, priority, unique;
2289 enum zapi_rule_notify_owner note;
2290 struct bgp_pbr_action *bgp_pbra;
ffee150e 2291 struct bgp_pbr_rule *bgp_pbr = NULL;
58a1d249 2292 char ifname[INTERFACE_NAMSIZ + 1];
30d50e6d
PG		 2293
2294 if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique,
58a1d249 2295 ifname, &note))
30d50e6d
PG		 2296 return -1;
2297
70eabd12 2298 bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique);
30d50e6d 2299 if (!bgp_pbra) {
ffee150e
PG		 2300 /* look in bgp pbr rule */
2301 bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique);
2302 if (!bgp_pbr && note != ZAPI_RULE_REMOVED) {
2303 if (BGP_DEBUG(zebra, ZEBRA))
2304 zlog_debug("%s: Fail to look BGP rule (%u)",
15569c58 2305 __func__, unique);
ffee150e
PG		 2306 return 0;
2307 }
30d50e6d
PG		 2308 }
2309
2310 switch (note) {
2311 case ZAPI_RULE_FAIL_INSTALL:
2312 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2313 zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__);
ffee150e
PG		 2314 if (bgp_pbra) {
2315 bgp_pbra->installed = false;
2316 bgp_pbra->install_in_progress = false;
2317 } else {
2318 bgp_pbr->installed = false;
2319 bgp_pbr->install_in_progress = false;
2320 }
30d50e6d
PG		 2321 break;
2322 case ZAPI_RULE_INSTALLED:
ffee150e
PG		 2323 if (bgp_pbra) {
2324 bgp_pbra->installed = true;
2325 bgp_pbra->install_in_progress = false;
2326 } else {
ce3c0614
PG		 2327 struct bgp_path_info *path;
2328 struct bgp_path_info_extra *extra;
2329
ffee150e
PG		 2330 bgp_pbr->installed = true;
2331 bgp_pbr->install_in_progress = false;
2332 bgp_pbr->action->refcnt++;
ce3c0614
PG		 2333 /* link bgp_info to bgp_pbr */
2334 path = (struct bgp_path_info *)bgp_pbr->path;
2335 extra = bgp_path_info_extra_get(path);
f5925234
PG		 2336 listnode_add_force(&extra->bgp_fs_iprule,
2337 bgp_pbr);
ffee150e 2338 }
30d50e6d 2339 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2340 zlog_debug("%s: Received RULE_INSTALLED", __func__);
30d50e6d 2341 break;
f18a08f5 2342 case ZAPI_RULE_FAIL_REMOVE:
30d50e6d
PG		 2343 case ZAPI_RULE_REMOVED:
2344 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2345 zlog_debug("%s: Received RULE REMOVED", __func__);
30d50e6d
PG		 2346 break;
2347 }
2348
2349 return 0;
2350}
2351
121f9dee 2352static int ipset_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2353{
2354 uint32_t unique;
2355 enum zapi_ipset_notify_owner note;
2356 struct bgp_pbr_match *bgp_pbim;
2357
2358 if (!zapi_ipset_notify_decode(zclient->ibuf,
2359 &unique,
2360 &note))
2361 return -1;
2362
2363 bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique);
2364 if (!bgp_pbim) {
2365 if (BGP_DEBUG(zebra, ZEBRA))
88055124 2366 zlog_debug("%s: Fail to look BGP match ( %u, ID %u)",
15569c58 2367 __func__, note, unique);
30d50e6d
PG		 2368 return 0;
2369 }
2370
2371 switch (note) {
2372 case ZAPI_IPSET_FAIL_INSTALL:
2373 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2374 zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__);
30d50e6d
PG		 2375 bgp_pbim->installed = false;
2376 bgp_pbim->install_in_progress = false;
2377 break;
2378 case ZAPI_IPSET_INSTALLED:
2379 bgp_pbim->installed = true;
2380 bgp_pbim->install_in_progress = false;
2381 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2382 zlog_debug("%s: Received IPSET_INSTALLED", __func__);
30d50e6d 2383 break;
f18a08f5 2384 case ZAPI_IPSET_FAIL_REMOVE:
30d50e6d
PG		 2385 case ZAPI_IPSET_REMOVED:
2386 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2387 zlog_debug("%s: Received IPSET REMOVED", __func__);
30d50e6d
PG		 2388 break;
2389 }
2390
2391 return 0;
2392}
2393
121f9dee 2394static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2395{
2396 uint32_t unique;
2397 char ipset_name[ZEBRA_IPSET_NAME_SIZE];
2398 enum zapi_ipset_entry_notify_owner note;
2399 struct bgp_pbr_match_entry *bgp_pbime;
2400
2401 if (!zapi_ipset_entry_notify_decode(
2402 zclient->ibuf,
2403 &unique,
2404 ipset_name,
2405 &note))
2406 return -1;
2407 bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id,
2408 ipset_name,
2409 unique);
2410 if (!bgp_pbime) {
2411 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2412 zlog_debug(
2413 "%s: Fail to look BGP match entry (%u, ID %u)",
2414 __func__, note, unique);
30d50e6d
PG		 2415 return 0;
2416 }
2417
2418 switch (note) {
2419 case ZAPI_IPSET_ENTRY_FAIL_INSTALL:
2420 if (BGP_DEBUG(zebra, ZEBRA))
2421 zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL",
15569c58 2422 __func__);
30d50e6d
PG		 2423 bgp_pbime->installed = false;
2424 bgp_pbime->install_in_progress = false;
2425 break;
2426 case ZAPI_IPSET_ENTRY_INSTALLED:
b588b642 2427 {
9b6d8fcf 2428 struct bgp_path_info *path;
4b7e6066
DS		 2429 struct bgp_path_info_extra *extra;
2430
2431 bgp_pbime->installed = true;
2432 bgp_pbime->install_in_progress = false;
2433 if (BGP_DEBUG(zebra, ZEBRA))
2434 zlog_debug("%s: Received IPSET_ENTRY_INSTALLED",
15569c58 2435 __func__);
9b6d8fcf
DS		 2436 /* link bgp_path_info to bpme */
2437 path = (struct bgp_path_info *)bgp_pbime->path;
2438 extra = bgp_path_info_extra_get(path);
f5925234 2439 listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime);
b588b642 2440 }
30d50e6d 2441 break;
f18a08f5 2442 case ZAPI_IPSET_ENTRY_FAIL_REMOVE:
30d50e6d
PG		 2443 case ZAPI_IPSET_ENTRY_REMOVED:
2444 if (BGP_DEBUG(zebra, ZEBRA))
2445 zlog_debug("%s: Received IPSET_ENTRY_REMOVED",
15569c58 2446 __func__);
30d50e6d
PG		 2447 break;
2448 }
2449 return 0;
2450}
2451
121f9dee 2452static int iptable_notify_owner(ZAPI_CALLBACK_ARGS)
c16a0a62
PG		 2453{
2454 uint32_t unique;
2455 enum zapi_iptable_notify_owner note;
2456 struct bgp_pbr_match *bgpm;
2457
2458 if (!zapi_iptable_notify_decode(
2459 zclient->ibuf,
2460 &unique,
2461 &note))
2462 return -1;
2463 bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique);
2464 if (!bgpm) {
2465 if (BGP_DEBUG(zebra, ZEBRA))
82e194ed 2466 zlog_debug("%s: Fail to look BGP iptable (%u %u)",
15569c58 2467 __func__, note, unique);
c16a0a62
PG		 2468 return 0;
2469 }
2470 switch (note) {
2471 case ZAPI_IPTABLE_FAIL_INSTALL:
2472 if (BGP_DEBUG(zebra, ZEBRA))
2473 zlog_debug("%s: Received IPTABLE_FAIL_INSTALL",
15569c58 2474 __func__);
c16a0a62
PG		 2475 bgpm->installed_in_iptable = false;
2476 bgpm->install_iptable_in_progress = false;
2477 break;
2478 case ZAPI_IPTABLE_INSTALLED:
2479 bgpm->installed_in_iptable = true;
2480 bgpm->install_iptable_in_progress = false;
2481 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2482 zlog_debug("%s: Received IPTABLE_INSTALLED", __func__);
a6b07429 2483 bgpm->action->refcnt++;
c16a0a62 2484 break;
f18a08f5 2485 case ZAPI_IPTABLE_FAIL_REMOVE:
c16a0a62
PG		 2486 case ZAPI_IPTABLE_REMOVED:
2487 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2488 zlog_debug("%s: Received IPTABLE REMOVED", __func__);
c16a0a62
PG		 2489 break;
2490 }
2491 return 0;
2492}
2493
a77e2f4b
S		 2494/* Process route notification messages from RIB */
2495static int bgp_zebra_route_notify_owner(int command, struct zclient *zclient,
2496 zebra_size_t length, vrf_id_t vrf_id)
2497{
2498 struct prefix p;
2499 enum zapi_route_notify_owner note;
2500 uint32_t table_id;
a77e2f4b
S		 2501 afi_t afi;
2502 safi_t safi;
2503 struct bgp_dest *dest;
2504 struct bgp *bgp;
2505 struct bgp_path_info *pi, *new_select;
2506
2507 if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, &note,
2508 &afi, &safi)) {
cc42c4f0 2509 zlog_err("%s : error in msg decode", __func__);
a77e2f4b
S		 2510 return -1;
2511 }
2512
2513 /* Get the bgp instance */
2514 bgp = bgp_lookup_by_vrf_id(vrf_id);
2515 if (!bgp) {
2516 flog_err(EC_BGP_INVALID_BGP_INSTANCE,
cc42c4f0
DS		 2517 "%s : bgp instance not found vrf %d", __func__,
2518 vrf_id);
a77e2f4b
S		 2519 return -1;
2520 }
2521
a77e2f4b
S		 2522 /* Find the bgp route node */
2523 dest = bgp_afi_node_lookup(bgp->rib[afi][safi], afi, safi, &p,
2524 &bgp->vrf_prd);
2525 if (!dest)
2526 return -1;
2527
a77e2f4b
S		 2528 switch (note) {
2529 case ZAPI_ROUTE_INSTALLED:
2530 new_select = NULL;
2531 /* Clear the flags so that route can be processed */
2532 if (CHECK_FLAG(dest->flags,
2533 BGP_NODE_FIB_INSTALL_PENDING)) {
2534 UNSET_FLAG(dest->flags,
2535 BGP_NODE_FIB_INSTALL_PENDING);
2536 SET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED);
2537 if (BGP_DEBUG(zebra, ZEBRA))
1a3519b6 2538 zlog_debug("route %pRN : INSTALLED", dest);
a77e2f4b
S		 2539 /* Find the best route */
2540 for (pi = dest->info; pi; pi = pi->next) {
2541 /* Process aggregate route */
2542 bgp_aggregate_increment(bgp, &p, pi,
2543 afi, safi);
2544 if (CHECK_FLAG(pi->flags,
2545 BGP_PATH_SELECTED))
2546 new_select = pi;
2547 }
2548 /* Advertise the route */
2549 if (new_select)
2550 group_announce_route(bgp, afi, safi,
2551 dest, new_select);
2552 else {
2553 flog_err(EC_BGP_INVALID_ROUTE,
1a3519b6
DS		 2554 "selected route %pRN not found",
2555 dest);
e71ad4b6
DA		 2556
2557 bgp_dest_unlock_node(dest);
a77e2f4b
S		 2558 return -1;
2559 }
2560 }
2561 break;
2562 case ZAPI_ROUTE_REMOVED:
2563 /* Route deleted from dataplane, reset the installed flag
2564 * so that route can be reinstalled when client sends
2565 * route add later
2566 */
2567 UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED);
1a3519b6
DS		 2568 if (BGP_DEBUG(zebra, ZEBRA))
2569 zlog_debug("route %pRN: Removed from Fib", dest);
a77e2f4b
S		 2570 break;
2571 case ZAPI_ROUTE_FAIL_INSTALL:
1a3519b6
DS		 2572 if (BGP_DEBUG(zebra, ZEBRA))
2573 zlog_debug("route: %pRN Failed to Install into Fib",
2574 dest);
a77e2f4b
S		 2575 /* Error will be logged by zebra module */
2576 break;
2577 case ZAPI_ROUTE_BETTER_ADMIN_WON:
1a3519b6
DS		 2578 if (BGP_DEBUG(zebra, ZEBRA))
2579 zlog_debug("route: %pRN removed due to better admin won",
2580 dest);
a77e2f4b
S		 2581 /* No action required */
2582 break;
2583 case ZAPI_ROUTE_REMOVE_FAIL:
1a3519b6
DS		 2584 zlog_warn("%s: Route %pRN failure to remove",
2585 __func__, dest);
a77e2f4b
S		 2586 break;
2587 }
e71ad4b6
DA		 2588
2589 bgp_dest_unlock_node(dest);
a77e2f4b
S		 2590 return 0;
2591}
2592
6cfe5d15
PG		 2593/* this function is used to forge ip rule,
2594 * - either for iptable/ipset using fwmark id
121f9dee 2595 * - or for sample ip rule cmd
6cfe5d15 2596 */
30d50e6d 2597static void bgp_encode_pbr_rule_action(struct stream *s,
6cfe5d15
PG		 2598 struct bgp_pbr_action *pbra,
2599 struct bgp_pbr_rule *pbr)
30d50e6d 2600{
6cfe5d15 2601 struct prefix pfx;
f01e580f 2602 uint8_t fam = AF_INET;
e95666cb 2603 char ifname[INTERFACE_NAMSIZ];
30d50e6d 2604
9f1f03ec 2605 if (pbra->nh.type == NEXTHOP_TYPE_IPV6)
f01e580f 2606 fam = AF_INET6;
30d50e6d 2607 stream_putl(s, 0); /* seqno unused */
8112a7a0
PG		 2608 if (pbr)
2609 stream_putl(s, pbr->priority);
2610 else
2611 stream_putl(s, 0);
2612 /* ruleno unused - priority change
2613 * ruleno permits distinguishing various FS PBR entries
2614 * - FS PBR entries based on ipset/iptables
2615 * - FS PBR entries based on iprule
2616 * the latter may contain default routing information injected by FS
2617 */
6cfe5d15
PG		 2618 if (pbr)
2619 stream_putl(s, pbr->unique);
2620 else
2621 stream_putl(s, pbra->unique);
f56697ef 2622 stream_putc(s, 0); /* ip protocol being used */
6cfe5d15
PG		 2623 if (pbr && pbr->flags & MATCH_IP_SRC_SET)
2624 memcpy(&pfx, &(pbr->src), sizeof(struct prefix));
2625 else {
2626 memset(&pfx, 0, sizeof(pfx));
f01e580f 2627 pfx.family = fam;
6cfe5d15
PG		 2628 }
2629 stream_putc(s, pfx.family);
2630 stream_putc(s, pfx.prefixlen);
2631 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2632
2633 stream_putw(s, 0); /* src port */
2634
6cfe5d15
PG		 2635 if (pbr && pbr->flags & MATCH_IP_DST_SET)
2636 memcpy(&pfx, &(pbr->dst), sizeof(struct prefix));
2637 else {
2638 memset(&pfx, 0, sizeof(pfx));
f01e580f 2639 pfx.family = fam;
6cfe5d15
PG		 2640 }
2641 stream_putc(s, pfx.family);
2642 stream_putc(s, pfx.prefixlen);
2643 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2644
2645 stream_putw(s, 0); /* dst port */
e95666cb 2646 stream_putc(s, 0); /* dsfield */
6cfe5d15
PG		 2647 /* if pbr present, fwmark is not used */
2648 if (pbr)
2649 stream_putl(s, 0);
2650 else
2651 stream_putl(s, pbra->fwmark); /* fwmark */
30d50e6d
PG		 2652
2653 stream_putl(s, pbra->table_id);
2654
e95666cb
DS		 2655 memset(ifname, 0, sizeof(ifname));
2656 stream_put(s, ifname, INTERFACE_NAMSIZ); /* ifname unused */
30d50e6d
PG		 2657}
2658
2659static void bgp_encode_pbr_ipset_match(struct stream *s,
2660 struct bgp_pbr_match *pbim)
2661{
2662 stream_putl(s, pbim->unique);
2663 stream_putl(s, pbim->type);
a60b7031 2664 stream_putc(s, pbim->family);
30d50e6d
PG		 2665 stream_put(s, pbim->ipset_name,
2666 ZEBRA_IPSET_NAME_SIZE);
30d50e6d
PG		 2667}
2668
2669static void bgp_encode_pbr_ipset_entry_match(struct stream *s,
2670 struct bgp_pbr_match_entry *pbime)
2671{
2672 stream_putl(s, pbime->unique);
2673 /* check that back pointer is not null */
2674 stream_put(s, pbime->backpointer->ipset_name,
2675 ZEBRA_IPSET_NAME_SIZE);
2676
2677 stream_putc(s, pbime->src.family);
2678 stream_putc(s, pbime->src.prefixlen);
2679 stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src));
2680
2681 stream_putc(s, pbime->dst.family);
2682 stream_putc(s, pbime->dst.prefixlen);
2683 stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst));
f730e566
PG		 2684
2685 stream_putw(s, pbime->src_port_min);
2686 stream_putw(s, pbime->src_port_max);
2687 stream_putw(s, pbime->dst_port_min);
2688 stream_putw(s, pbime->dst_port_max);
2689 stream_putc(s, pbime->proto);
30d50e6d
PG		 2690}
2691
c16a0a62
PG		 2692static void bgp_encode_pbr_iptable_match(struct stream *s,
2693 struct bgp_pbr_action *bpa,
2694 struct bgp_pbr_match *pbm)
2695{
2696 stream_putl(s, pbm->unique2);
2697
2698 stream_putl(s, pbm->type);
2699
2700 stream_putl(s, pbm->flags);
2701
2702 /* TODO: correlate with what is contained
2703 * into bgp_pbr_action.
2704 * currently only forward supported
2705 */
2706 if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE)
2707 stream_putl(s, ZEBRA_IPTABLES_DROP);
2708 else
2709 stream_putl(s, ZEBRA_IPTABLES_FORWARD);
2710 stream_putl(s, bpa->fwmark);
2711 stream_put(s, pbm->ipset_name,
2712 ZEBRA_IPSET_NAME_SIZE);
a60b7031 2713 stream_putc(s, pbm->family);
83360720
PG		 2714 stream_putw(s, pbm->pkt_len_min);
2715 stream_putw(s, pbm->pkt_len_max);
2da7d62e
PG		 2716 stream_putw(s, pbm->tcp_flags);
2717 stream_putw(s, pbm->tcp_mask_flags);
4977bd6c 2718 stream_putc(s, pbm->dscp_value);
6f5617d8 2719 stream_putc(s, pbm->fragment);
f449d223 2720 stream_putc(s, pbm->protocol);
a60b7031 2721 stream_putw(s, pbm->flow_label);
c16a0a62
PG		 2722}
2723
ad4cbda1 2724/* BGP has established connection with Zebra. */
d62a17ae 2725static void bgp_zebra_connected(struct zclient *zclient)
7076bb2f 2726{
d62a17ae 2727 struct bgp *bgp;
7076bb2f 2728
d62a17ae 2729 zclient_num_connects++; /* increment even if not responding */
afbb1c59 2730
6bfcd0f1
IR		 2731 /* Send the client registration */
2732 bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT);
2733
d62a17ae 2734 /* At this point, we may or may not have BGP instances configured, but
2735 * we're only interested in the default VRF (others wouldn't have learnt
2736 * the VRF from Zebra yet.)
2737 */
2738 bgp = bgp_get_default();
2739 if (!bgp)
2740 return;
ad4cbda1 2741
d62a17ae 2742 bgp_zebra_instance_register(bgp);
ad4cbda1 2743
955bfd98 2744 /* tell label pool that zebra is connected */
e70e9f8e 2745 bgp_lp_event_zebra_up();
955bfd98 2746
d62a17ae 2747 /* TODO - What if we have peers and networks configured, do we have to
2748 * kick-start them?
2749 */
85ef4179 2750 BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer);
7076bb2f
FL		 2751}
2752
c44ab6f1
AK		 2753static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS)
2754{
2755 esi_t esi;
2756 struct bgp *bgp = NULL;
2757 struct stream *s = NULL;
2758 char buf[ESI_STR_LEN];
2759 struct in_addr originator_ip;
2760 uint8_t active;
74be8313 2761 uint8_t bypass;
74e2bd89 2762 uint16_t df_pref;
c44ab6f1
AK		 2763
2764 bgp = bgp_lookup_by_vrf_id(vrf_id);
2765 if (!bgp)
2766 return 0;
2767
2768 s = zclient->ibuf;
2769 stream_get(&esi, s, sizeof(esi_t));
2770 originator_ip.s_addr = stream_get_ipv4(s);
2771 active = stream_getc(s);
74e2bd89 2772 df_pref = stream_getw(s);
74be8313 2773 bypass = stream_getc(s);
c44ab6f1
AK		 2774
2775 if (BGP_DEBUG(zebra, ZEBRA))
74e2bd89 2776 zlog_debug(
74be8313
AK		 2777 "Rx add ESI %s originator-ip %pI4 active %u df_pref %u %s",
2778 esi_to_str(&esi, buf, sizeof(buf)), &originator_ip,
2779 active, df_pref, bypass ? "bypass" : "");
c44ab6f1 2780
a383bfc7
AK		 2781 frrtrace(5, frr_bgp, evpn_mh_local_es_add_zrecv, &esi, originator_ip,
2782 active, bypass, df_pref);
2783
74be8313
AK		 2784 bgp_evpn_local_es_add(bgp, &esi, originator_ip, active, df_pref,
2785 !!bypass);
c44ab6f1
AK		 2786
2787 return 0;
2788}
2789
2790static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS)
50f74cf1 2791{
2792 esi_t esi;
2793 struct bgp *bgp = NULL;
2794 struct stream *s = NULL;
2795 char buf[ESI_STR_LEN];
50f74cf1 2796
2797 memset(&esi, 0, sizeof(esi_t));
c44ab6f1
AK		 2798 bgp = bgp_lookup_by_vrf_id(vrf_id);
2799 if (!bgp)
2800 return 0;
2801
2802 s = zclient->ibuf;
2803 stream_get(&esi, s, sizeof(esi_t));
2804
2805 if (BGP_DEBUG(zebra, ZEBRA))
2806 zlog_debug("Rx del ESI %s",
2807 esi_to_str(&esi, buf, sizeof(buf)));
2808
a383bfc7
AK		 2809 frrtrace(1, frr_bgp, evpn_mh_local_es_del_zrecv, &esi);
2810
c44ab6f1
AK		 2811 bgp_evpn_local_es_del(bgp, &esi);
2812
2813 return 0;
2814}
2815
2816static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS)
2817{
2818 esi_t esi;
2819 vni_t vni;
2820 struct bgp *bgp;
2821 struct stream *s;
2822 char buf[ESI_STR_LEN];
50f74cf1 2823
2824 bgp = bgp_lookup_by_vrf_id(vrf_id);
2825 if (!bgp)
2826 return 0;
2827
2828 s = zclient->ibuf;
2829 stream_get(&esi, s, sizeof(esi_t));
c44ab6f1 2830 vni = stream_getl(s);
50f74cf1 2831
2832 if (BGP_DEBUG(zebra, ZEBRA))
c44ab6f1
AK		 2833 zlog_debug("Rx %s ESI %s VNI %u",
2834 ZEBRA_VNI_ADD ? "add" : "del",
2835 esi_to_str(&esi, buf, sizeof(buf)), vni);
50f74cf1 2836
a383bfc7
AK		 2837 if (cmd == ZEBRA_LOCAL_ES_EVI_ADD) {
2838 frrtrace(2, frr_bgp, evpn_mh_local_es_evi_add_zrecv, &esi, vni);
2839
c44ab6f1 2840 bgp_evpn_local_es_evi_add(bgp, &esi, vni);
a383bfc7
AK		 2841 } else {
2842 frrtrace(2, frr_bgp, evpn_mh_local_es_evi_del_zrecv, &esi, vni);
2843
c44ab6f1 2844 bgp_evpn_local_es_evi_del(bgp, &esi, vni);
a383bfc7 2845 }
c44ab6f1 2846
50f74cf1 2847 return 0;
2848}
2849
121f9dee 2850static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS)
fe1dc5a3 2851{
c48d9f5f 2852 int filter = 0;
b67a60d2 2853 vni_t l3vni = 0;
14e814ea 2854 struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} };
b67a60d2 2855 struct in_addr originator_ip;
fe1dc5a3 2856 struct stream *s;
0483af6e 2857 ifindex_t svi_ifindex;
14e814ea 2858 bool is_anycast_mac = false;
fe1dc5a3 2859
14e814ea 2860 memset(&svi_rmac, 0, sizeof(struct ethaddr));
b67a60d2 2861 memset(&originator_ip, 0, sizeof(struct in_addr));
fe1dc5a3
MK		 2862 s = zclient->ibuf;
2863 l3vni = stream_getl(s);
b67a60d2 2864 if (cmd == ZEBRA_L3VNI_ADD) {
14e814ea 2865 stream_get(&svi_rmac, s, sizeof(struct ethaddr));
b67a60d2 2866 originator_ip.s_addr = stream_get_ipv4(s);
c48d9f5f 2867 stream_get(&filter, s, sizeof(int));
0483af6e 2868 svi_ifindex = stream_getl(s);
14e814ea
CS		 2869 stream_get(&vrr_rmac, s, sizeof(struct ethaddr));
2870 is_anycast_mac = stream_getl(s);
fe1dc5a3 2871
0483af6e 2872 if (BGP_DEBUG(zebra, ZEBRA))
c0d72166
DS		 2873 zlog_debug(
2874 "Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %pEA vrr-mac %pEA filter %s svi-if %u",
2875 vrf_id_to_name(vrf_id), l3vni, &svi_rmac,
2876 &vrr_rmac,
2877 filter ? "prefix-routes-only" : "none",
2878 svi_ifindex);
fe1dc5a3 2879
a383bfc7
AK		 2880 frrtrace(8, frr_bgp, evpn_local_l3vni_add_zrecv, l3vni, vrf_id,
2881 &svi_rmac, &vrr_rmac, filter, originator_ip,
2882 svi_ifindex, is_anycast_mac);
2883
14e814ea
CS		 2884 bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac,
2885 originator_ip, filter, svi_ifindex,
2886 is_anycast_mac);
0483af6e 2887 } else {
2888 if (BGP_DEBUG(zebra, ZEBRA))
2889 zlog_debug("Rx L3-VNI DEL VRF %s VNI %u",
2890 vrf_id_to_name(vrf_id), l3vni);
2891
a383bfc7
AK		 2892 frrtrace(2, frr_bgp, evpn_local_l3vni_del_zrecv, l3vni, vrf_id);
2893
fe1dc5a3 2894 bgp_evpn_local_l3vni_del(l3vni, vrf_id);
0483af6e 2895 }
fe1dc5a3
MK		 2896
2897 return 0;
2898}
2899
121f9dee 2900static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS)
128ea8ab 2901{
d62a17ae 2902 struct stream *s;
2903 vni_t vni;
2904 struct bgp *bgp;
a4d82a8a 2905 struct in_addr vtep_ip = {INADDR_ANY};
29c53922 2906 vrf_id_t tenant_vrf_id = VRF_DEFAULT;
76d07c7a 2907 struct in_addr mcast_grp = {INADDR_ANY};
9daa5d47 2908 ifindex_t svi_ifindex = 0;
d62a17ae 2909
2910 s = zclient->ibuf;
2911 vni = stream_getl(s);
121f9dee 2912 if (cmd == ZEBRA_VNI_ADD) {
d62a17ae 2913 vtep_ip.s_addr = stream_get_ipv4(s);
29c53922 2914 stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t));
76d07c7a 2915 mcast_grp.s_addr = stream_get_ipv4(s);
9daa5d47 2916 stream_get(&svi_ifindex, s, sizeof(ifindex_t));
29c53922
MK		 2917 }
2918
d62a17ae 2919 bgp = bgp_lookup_by_vrf_id(vrf_id);
2920 if (!bgp)
2921 return 0;
2922
2923 if (BGP_DEBUG(zebra, ZEBRA))
9daa5d47
AD		 2924 zlog_debug(
2925 "Rx VNI %s VRF %s VNI %u tenant-vrf %s SVI ifindex %u",
2926 (cmd == ZEBRA_VNI_ADD) ? "add" : "del",
2927 vrf_id_to_name(vrf_id), vni,
2928 vrf_id_to_name(tenant_vrf_id), svi_ifindex);
d62a17ae 2929
a383bfc7
AK		 2930 if (cmd == ZEBRA_VNI_ADD) {
2931 frrtrace(4, frr_bgp, evpn_local_vni_add_zrecv, vni, vtep_ip,
2932 tenant_vrf_id, mcast_grp);
2933
d62a17ae 2934 return bgp_evpn_local_vni_add(
975a328e
DA		 2935 bgp, vni,
2936 vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id,
9daa5d47 2937 tenant_vrf_id, mcast_grp, svi_ifindex);
a383bfc7
AK		 2938 } else {
2939 frrtrace(1, frr_bgp, evpn_local_vni_del_zrecv, vni);
2940
d62a17ae 2941 return bgp_evpn_local_vni_del(bgp, vni);
a383bfc7 2942 }
128ea8ab 2943}
2944
121f9dee 2945static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS)
128ea8ab 2946{
d62a17ae 2947 struct stream *s;
2948 vni_t vni;
2949 struct bgp *bgp;
2950 struct ethaddr mac;
2951 struct ipaddr ip;
2952 int ipa_len;
f07e1c99 2953 uint8_t flags = 0;
2954 uint32_t seqnum = 0;
ec0ab544 2955 int state = 0;
c44ab6f1
AK		 2956 char buf2[ESI_STR_LEN];
2957 esi_t esi;
d62a17ae 2958
2959 memset(&ip, 0, sizeof(ip));
2960 s = zclient->ibuf;
2961 vni = stream_getl(s);
28328ea9 2962 stream_get(&mac.octet, s, ETH_ALEN);
d62a17ae 2963 ipa_len = stream_getl(s);
2964 if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN
2965 && ipa_len != IPV6_MAX_BYTELEN) {
e50f7cfd 2966 flog_err(EC_BGP_MACIP_LEN,
1c50c1c0 2967 "%u:Recv MACIP %s with invalid IP addr length %d",
121f9dee 2968 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del",
1c50c1c0 2969 ipa_len);
d62a17ae 2970 return -1;
2971 }
2972
2973 if (ipa_len) {
2974 ip.ipa_type =
2975 (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6;
2976 stream_get(&ip.ip.addr, s, ipa_len);
2977 }
121f9dee 2978 if (cmd == ZEBRA_MACIP_ADD) {
f07e1c99 2979 flags = stream_getc(s);
2980 seqnum = stream_getl(s);
c44ab6f1 2981 stream_get(&esi, s, sizeof(esi_t));
ec0ab544
AK		 2982 } else {
2983 state = stream_getl(s);
35fb444b 2984 memset(&esi, 0, sizeof(esi_t));
f07e1c99 2985 }
d62a17ae 2986
2987 bgp = bgp_lookup_by_vrf_id(vrf_id);
2988 if (!bgp)
2989 return 0;
2990
2991 if (BGP_DEBUG(zebra, ZEBRA))
c0d72166 2992 zlog_debug(
2dd0dde7 2993 "%u:Recv MACIP %s f 0x%x MAC %pEA IP %pIA VNI %u seq %u state %d ESI %s",
c0d72166
DS		 2994 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags,
2995 &mac, &ip, vni, seqnum, state,
2996 esi_to_str(&esi, buf2, sizeof(buf2)));
d62a17ae 2997
a383bfc7
AK		 2998 if (cmd == ZEBRA_MACIP_ADD) {
2999 frrtrace(6, frr_bgp, evpn_local_macip_add_zrecv, vni, &mac, &ip,
3000 flags, seqnum, &esi);
3001
f07e1c99 3002 return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip,
c44ab6f1 3003 flags, seqnum, &esi);
a383bfc7
AK		 3004 } else {
3005 frrtrace(4, frr_bgp, evpn_local_macip_del_zrecv, vni, &mac, &ip,
3006 state);
3007
ec0ab544 3008 return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state);
a383bfc7 3009 }
128ea8ab 3010}
6aeb9e78 3011
a243d1db 3012static int bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS)
31310b25
MK		 3013{
3014 struct stream *s = NULL;
3015 struct bgp *bgp_vrf = NULL;
3016 struct prefix p;
31310b25
MK		 3017
3018 memset(&p, 0, sizeof(struct prefix));
3019 s = zclient->ibuf;
3020 stream_get(&p, s, sizeof(struct prefix));
3021
3022 bgp_vrf = bgp_lookup_by_vrf_id(vrf_id);
3023 if (!bgp_vrf)
a243d1db 3024 return 0;
31310b25
MK		 3025
3026 if (BGP_DEBUG(zebra, ZEBRA))
2dbe669b 3027 zlog_debug("Recv prefix %pFX %s on vrf %s", &p,
31310b25
MK		 3028 (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL",
3029 vrf_id_to_name(vrf_id));
3030
3031 if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) {
3032
3033 if (p.family == AF_INET)
d90b788e
A		 3034 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
3035 AFI_IP, SAFI_UNICAST);
31310b25 3036 else
d90b788e
A		 3037 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
3038 AFI_IP6, SAFI_UNICAST);
31310b25
MK		 3039
3040 } else {
3041 if (p.family == AF_INET)
d90b788e
A		 3042 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP,
3043 SAFI_UNICAST);
31310b25 3044 else
d90b788e
A		 3045 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6,
3046 SAFI_UNICAST);
31310b25 3047 }
a243d1db 3048 return 0;
31310b25
MK		 3049}
3050
a243d1db 3051static int bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS)
955bfd98
PZ		 3052{
3053 struct stream *s = NULL;
3054 uint8_t response_keep;
3055 uint32_t first;
3056 uint32_t last;
aec865e4
FR		 3057 uint8_t proto;
3058 unsigned short instance;
955bfd98
PZ		 3059
3060 s = zclient->ibuf;
aec865e4
FR		 3061 STREAM_GETC(s, proto);
3062 STREAM_GETW(s, instance);
955bfd98
PZ		 3063 STREAM_GETC(s, response_keep);
3064 STREAM_GETL(s, first);
3065 STREAM_GETL(s, last);
3066
aec865e4 3067 if (zclient->redist_default != proto) {
e50f7cfd 3068 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u",
1c50c1c0 3069 proto);
a243d1db 3070 return 0;
aec865e4
FR		 3071 }
3072 if (zclient->instance != instance) {
e50f7cfd 3073 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u",
1c50c1c0 3074 proto);
a243d1db 3075 return 0;
aec865e4
FR		 3076 }
3077
955bfd98
PZ		 3078 if (first > last ||
3079 first < MPLS_LABEL_UNRESERVED_MIN ||
3080 last > MPLS_LABEL_UNRESERVED_MAX) {
3081
e50f7cfd 3082 flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u",
1c50c1c0 3083 __func__, first, last);
a243d1db 3084 return 0;
955bfd98
PZ		 3085 }
3086 if (BGP_DEBUG(zebra, ZEBRA)) {
3087 zlog_debug("Label Chunk assign: %u - %u (%u) ",
3088 first, last, response_keep);
3089 }
3090
e70e9f8e 3091 bgp_lp_event_chunk(response_keep, first, last);
955bfd98 3092
a243d1db
DL		 3093 return 0;
3094
955bfd98 3095stream_failure: /* for STREAM_GETX */
a243d1db 3096 return -1;
955bfd98
PZ		 3097}
3098
342213ea
DS		 3099extern struct zebra_privs_t bgpd_privs;
3100
138c5a74
DS		 3101static int bgp_ifp_create(struct interface *ifp)
3102{
ef7bd2a3
DS		 3103 struct bgp *bgp;
3104
3105 if (BGP_DEBUG(zebra, ZEBRA))
3106 zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name);
3107
3108 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
3109 if (!bgp)
3110 return 0;
3111
3112 bgp_mac_add_mac_entry(ifp);
3113
3114 bgp_update_interface_nbrs(bgp, ifp, ifp);
0d020cd6 3115 hook_call(bgp_vrf_status_changed, bgp, ifp);
138c5a74
DS		 3116 return 0;
3117}
3118
a243d1db 3119static int bgp_zebra_process_srv6_locator_chunk(ZAPI_CALLBACK_ARGS)
a0281b2e
HS		 3120{
3121 struct stream *s = NULL;
7de4c885
HS		 3122 struct bgp *bgp = bgp_get_default();
3123 struct listnode *node;
3124 struct prefix_ipv6 *c;
1bda3e62 3125 struct srv6_locator_chunk s6c = {};
3a0220e4 3126 struct prefix_ipv6 *chunk = NULL;
a0281b2e
HS		 3127
3128 s = zclient->ibuf;
3a0220e4 3129 zapi_srv6_locator_chunk_decode(s, &s6c);
a0281b2e 3130
3a0220e4
HS		 3131 if (strcmp(bgp->srv6_locator_name, s6c.locator_name) != 0) {
3132 zlog_err("%s: Locator name unmatch %s:%s", __func__,
3133 bgp->srv6_locator_name, s6c.locator_name);
a243d1db 3134 return 0;
a0281b2e
HS		 3135 }
3136
a0281b2e 3137 for (ALL_LIST_ELEMENTS_RO(bgp->srv6_locator_chunks, node, c)) {
3a0220e4 3138 if (!prefix_cmp(c, &s6c.prefix))
a243d1db 3139 return 0;
a0281b2e
HS		 3140 }
3141
3a0220e4
HS		 3142 chunk = prefix_ipv6_new();
3143 *chunk = s6c.prefix;
a0281b2e
HS		 3144 listnode_add(bgp->srv6_locator_chunks, chunk);
3145 vpn_leak_postchange_all();
a243d1db 3146 return 0;
a0281b2e
HS		 3147}
3148
d79ff732
HS		 3149static int bgp_zebra_process_srv6_locator_add(ZAPI_CALLBACK_ARGS)
3150{
3151 struct srv6_locator loc = {};
3152 struct bgp *bgp = bgp_get_default();
3153 const char *loc_name = bgp->srv6_locator_name;
3154
3155 if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0)
3156 return -1;
3157
3158 if (!bgp || !bgp->srv6_enabled)
3159 return 0;
3160
3161 if (bgp_zebra_srv6_manager_get_locator_chunk(loc_name) < 0)
3162 return -1;
3163
3164 return 0;
3165}
3166
3167static int bgp_zebra_process_srv6_locator_delete(ZAPI_CALLBACK_ARGS)
3168{
3169 struct srv6_locator loc = {};
3170 struct bgp *bgp = bgp_get_default();
3171 struct listnode *node, *nnode;
3172 struct prefix_ipv6 *chunk;
3173 struct bgp_srv6_function *func;
3174 struct bgp *bgp_vrf;
3175 struct in6_addr *tovpn_sid;
3176 struct prefix_ipv6 tmp_prefi;
3177
3178 if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0)
3179 return -1;
3180
3181 // refresh chunks
3182 for (ALL_LIST_ELEMENTS(bgp->srv6_locator_chunks, node, nnode, chunk))
3183 if (prefix_match((struct prefix *)&loc.prefix,
3184 (struct prefix *)chunk))
3185 listnode_delete(bgp->srv6_locator_chunks, chunk);
3186
3187 // refresh functions
3188 for (ALL_LIST_ELEMENTS(bgp->srv6_functions, node, nnode, func)) {
3189 tmp_prefi.family = AF_INET6;
3190 tmp_prefi.prefixlen = 128;
3191 tmp_prefi.prefix = func->sid;
3192 if (prefix_match((struct prefix *)&loc.prefix,
3193 (struct prefix *)&tmp_prefi))
3194 listnode_delete(bgp->srv6_functions, func);
3195 }
3196
3197 // refresh tovpn_sid
3198 for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp_vrf)) {
3199 if (bgp_vrf->inst_type != BGP_INSTANCE_TYPE_VRF)
3200 continue;
3201
3202 // refresh vpnv4 tovpn_sid
3203 tovpn_sid = bgp_vrf->vpn_policy[AFI_IP].tovpn_sid;
3204 if (tovpn_sid) {
3205 tmp_prefi.family = AF_INET6;
3206 tmp_prefi.prefixlen = 128;
3207 tmp_prefi.prefix = *tovpn_sid;
3208 if (prefix_match((struct prefix *)&loc.prefix,
3209 (struct prefix *)&tmp_prefi))
3210 XFREE(MTYPE_BGP_SRV6_SID,
3211 bgp_vrf->vpn_policy[AFI_IP].tovpn_sid);
3212 }
3213
3214 // refresh vpnv6 tovpn_sid
3215 tovpn_sid = bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid;
3216 if (tovpn_sid) {
3217 tmp_prefi.family = AF_INET6;
3218 tmp_prefi.prefixlen = 128;
3219 tmp_prefi.prefix = *tovpn_sid;
3220 if (prefix_match((struct prefix *)&loc.prefix,
3221 (struct prefix *)&tmp_prefi))
3222 XFREE(MTYPE_BGP_SRV6_SID,
3223 bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid);
3224 }
3225 }
3226
3227 vpn_leak_postchange_all();
3228 return 0;
3229}
3230
a243d1db
DL		 3231static zclient_handler *const bgp_handlers[] = {
3232 [ZEBRA_ROUTER_ID_UPDATE] = bgp_router_id_update,
3233 [ZEBRA_INTERFACE_ADDRESS_ADD] = bgp_interface_address_add,
3234 [ZEBRA_INTERFACE_ADDRESS_DELETE] = bgp_interface_address_delete,
3235 [ZEBRA_INTERFACE_NBR_ADDRESS_ADD] = bgp_interface_nbr_address_add,
3236 [ZEBRA_INTERFACE_NBR_ADDRESS_DELETE] = bgp_interface_nbr_address_delete,
3237 [ZEBRA_INTERFACE_VRF_UPDATE] = bgp_interface_vrf_update,
3238 [ZEBRA_REDISTRIBUTE_ROUTE_ADD] = zebra_read_route,
3239 [ZEBRA_REDISTRIBUTE_ROUTE_DEL] = zebra_read_route,
3240 [ZEBRA_NEXTHOP_UPDATE] = bgp_read_nexthop_update,
3241 [ZEBRA_FEC_UPDATE] = bgp_read_fec_update,
3242 [ZEBRA_LOCAL_ES_ADD] = bgp_zebra_process_local_es_add,
3243 [ZEBRA_LOCAL_ES_DEL] = bgp_zebra_process_local_es_del,
3244 [ZEBRA_VNI_ADD] = bgp_zebra_process_local_vni,
3245 [ZEBRA_LOCAL_ES_EVI_ADD] = bgp_zebra_process_local_es_evi,
3246 [ZEBRA_LOCAL_ES_EVI_DEL] = bgp_zebra_process_local_es_evi,
3247 [ZEBRA_VNI_DEL] = bgp_zebra_process_local_vni,
3248 [ZEBRA_MACIP_ADD] = bgp_zebra_process_local_macip,
3249 [ZEBRA_MACIP_DEL] = bgp_zebra_process_local_macip,
3250 [ZEBRA_L3VNI_ADD] = bgp_zebra_process_local_l3vni,
3251 [ZEBRA_L3VNI_DEL] = bgp_zebra_process_local_l3vni,
3252 [ZEBRA_IP_PREFIX_ROUTE_ADD] = bgp_zebra_process_local_ip_prefix,
3253 [ZEBRA_IP_PREFIX_ROUTE_DEL] = bgp_zebra_process_local_ip_prefix,
3254 [ZEBRA_GET_LABEL_CHUNK] = bgp_zebra_process_label_chunk,
3255 [ZEBRA_RULE_NOTIFY_OWNER] = rule_notify_owner,
3256 [ZEBRA_IPSET_NOTIFY_OWNER] = ipset_notify_owner,
3257 [ZEBRA_IPSET_ENTRY_NOTIFY_OWNER] = ipset_entry_notify_owner,
3258 [ZEBRA_IPTABLE_NOTIFY_OWNER] = iptable_notify_owner,
3259 [ZEBRA_ROUTE_NOTIFY_OWNER] = bgp_zebra_route_notify_owner,
3260 [ZEBRA_SRV6_LOCATOR_ADD] = bgp_zebra_process_srv6_locator_add,
3261 [ZEBRA_SRV6_LOCATOR_DELETE] = bgp_zebra_process_srv6_locator_delete,
3262 [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK] =
3263 bgp_zebra_process_srv6_locator_chunk,
3264};
3265
f533be73 3266void bgp_zebra_init(struct thread_master *master, unsigned short instance)
718e3744 3267{
d62a17ae 3268 zclient_num_connects = 0;
3269
138c5a74
DS		 3270 if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up,
3271 bgp_ifp_down, bgp_ifp_destroy);
3272
d62a17ae 3273 /* Set default values. */
a243d1db
DL		 3274 zclient = zclient_new(master, &zclient_options_default, bgp_handlers,
3275 array_size(bgp_handlers));
342213ea 3276 zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs);
d62a17ae 3277 zclient->zebra_connected = bgp_zebra_connected;
f533be73 3278 zclient->instance = instance;
718e3744 3279}
bb86c601 3280
d62a17ae 3281void bgp_zebra_destroy(void)
bb86c601 3282{
d62a17ae 3283 if (zclient == NULL)
3284 return;
3285 zclient_stop(zclient);
3286 zclient_free(zclient);
3287 zclient = NULL;
bb86c601 3288}
afbb1c59 3289
d62a17ae 3290int bgp_zebra_num_connects(void)
afbb1c59 3291{
d62a17ae 3292 return zclient_num_connects;
afbb1c59 3293}
30d50e6d 3294
6cfe5d15
PG		 3295void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra,
3296 struct bgp_pbr_rule *pbr,
3297 bool install)
30d50e6d
PG		 3298{
3299 struct stream *s;
3300
6cfe5d15 3301 if (pbra->install_in_progress && !pbr)
30d50e6d 3302 return;
6cfe5d15
PG		 3303 if (pbr && pbr->install_in_progress)
3304 return;
3305 if (BGP_DEBUG(zebra, ZEBRA)) {
3306 if (pbr)
15569c58 3307 zlog_debug("%s: table %d (ip rule) %d", __func__,
6cfe5d15
PG		 3308 pbra->table_id, install);
3309 else
15569c58 3310 zlog_debug("%s: table %d fwmark %d %d", __func__,
6cfe5d15
PG		 3311 pbra->table_id, pbra->fwmark, install);
3312 }
30d50e6d
PG		 3313 s = zclient->obuf;
3314 stream_reset(s);
3315
3316 zclient_create_header(s,
3317 install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE,
3318 VRF_DEFAULT);
3319 stream_putl(s, 1); /* send one pbr action */
3320
6cfe5d15 3321 bgp_encode_pbr_rule_action(s, pbra, pbr);
30d50e6d
PG		 3322
3323 stream_putw_at(s, 0, stream_get_endp(s));
8a3f8f2e
DS		 3324 if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE)
3325 && install) {
6cfe5d15
PG		 3326 if (!pbr)
3327 pbra->install_in_progress = true;
3328 else
3329 pbr->install_in_progress = true;
3330 }
30d50e6d
PG		 3331}
3332
3333void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install)
3334{
3335 struct stream *s;
3336
3337 if (pbrim->install_in_progress)
3338 return;
f0936054 3339 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3340 zlog_debug("%s: name %s type %d %d, ID %u", __func__,
3341 pbrim->ipset_name, pbrim->type, install,
3342 pbrim->unique);
30d50e6d
PG		 3343 s = zclient->obuf;
3344 stream_reset(s);
3345
3346 zclient_create_header(s,
3347 install ? ZEBRA_IPSET_CREATE :
3348 ZEBRA_IPSET_DESTROY,
3349 VRF_DEFAULT);
3350
3351 stream_putl(s, 1); /* send one pbr action */
3352
3353 bgp_encode_pbr_ipset_match(s, pbrim);
3354
3355 stream_putw_at(s, 0, stream_get_endp(s));
8a3f8f2e 3356 if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install)
30d50e6d
PG		 3357 pbrim->install_in_progress = true;
3358}
3359
3360void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime,
3361 bool install)
3362{
3363 struct stream *s;
3364
3365 if (pbrime->install_in_progress)
3366 return;
f0936054 3367 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3368 zlog_debug("%s: name %s %d %d, ID %u", __func__,
3369 pbrime->backpointer->ipset_name, pbrime->unique,
3370 install, pbrime->unique);
30d50e6d
PG		 3371 s = zclient->obuf;
3372 stream_reset(s);
3373
3374 zclient_create_header(s,
3375 install ? ZEBRA_IPSET_ENTRY_ADD :
3376 ZEBRA_IPSET_ENTRY_DELETE,
3377 VRF_DEFAULT);
3378
3379 stream_putl(s, 1); /* send one pbr action */
3380
3381 bgp_encode_pbr_ipset_entry_match(s, pbrime);
3382
3383 stream_putw_at(s, 0, stream_get_endp(s));
8a3f8f2e 3384 if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install)
30d50e6d
PG		 3385 pbrime->install_in_progress = true;
3386}
c16a0a62 3387
8f242187
PG		 3388static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s,
3389 uint8_t family)
4762c213
PG		 3390{
3391 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
3392 struct bgp_pbr_interface_head *head;
3393 struct bgp_pbr_interface *pbr_if;
3394 struct interface *ifp;
3395
3396 if (!bgp_pbr_cfg)
3397 return;
8f242187
PG		 3398 if (family == AF_INET)
3399 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
3400 else
3401 head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
4762c213 3402 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 3403 ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id);
4762c213
PG		 3404 if (ifp)
3405 stream_putl(s, ifp->ifindex);
3406 }
3407}
3408
8f242187 3409static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family)
4762c213
PG		 3410{
3411 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
3412 struct bgp_pbr_interface_head *head;
3413 struct bgp_pbr_interface *pbr_if;
3414 int cnt = 0;
3415
3416 if (!bgp_pbr_cfg)
3417 return 0;
8f242187
PG		 3418 if (family == AF_INET)
3419 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
3420 else
3421 head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
4762c213 3422 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 3423 if (if_lookup_by_name(pbr_if->name, bgp->vrf_id))
4762c213
PG		 3424 cnt++;
3425 }
3426 return cnt;
3427}
3428
c16a0a62
PG		 3429void bgp_send_pbr_iptable(struct bgp_pbr_action *pba,
3430 struct bgp_pbr_match *pbm,
3431 bool install)
3432{
3433 struct stream *s;
b5c40105 3434 int ret = 0;
4762c213 3435 int nb_interface;
c16a0a62
PG		 3436
3437 if (pbm->install_iptable_in_progress)
3438 return;
f0936054 3439 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3440 zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__,
3441 pbm->ipset_name, pbm->type, pba->fwmark, install,
88055124 3442 pbm->unique2);
c16a0a62
PG		 3443 s = zclient->obuf;
3444 stream_reset(s);
3445
3446 zclient_create_header(s,
3447 install ? ZEBRA_IPTABLE_ADD :
3448 ZEBRA_IPTABLE_DELETE,
3449 VRF_DEFAULT);
3450
3451 bgp_encode_pbr_iptable_match(s, pba, pbm);
8f242187 3452 nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family);
4762c213
PG		 3453 stream_putl(s, nb_interface);
3454 if (nb_interface)
8f242187 3455 bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family);
c16a0a62 3456 stream_putw_at(s, 0, stream_get_endp(s));
b5c40105
PG		 3457 ret = zclient_send_message(zclient);
3458 if (install) {
8a3f8f2e 3459 if (ret != ZCLIENT_SEND_FAILURE)
b5c40105
PG		 3460 pba->refcnt++;
3461 else
3462 pbm->install_iptable_in_progress = true;
a6b07429 3463 }
c16a0a62 3464}
f7df1907
PG		 3465
3466/* inject in table <table_id> a default route to:
3467 * - if nexthop IP is present : to this nexthop
3468 * - if vrf is different from local : to the matching VRF
3469 */
3470void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh,
3471 afi_t afi, uint32_t table_id, bool announce)
3472{
3473 struct zapi_nexthop *api_nh;
3474 struct zapi_route api;
3475 struct prefix p;
3476
f01e580f
PG		 3477 if (!nh || (nh->type != NEXTHOP_TYPE_IPV4
3478 && nh->type != NEXTHOP_TYPE_IPV6)
f7df1907
PG		 3479 || nh->vrf_id == VRF_UNKNOWN)
3480 return;
7afeaffa
PG		 3481
3482 /* in vrf-lite, no default route has to be announced
3483 * the table id of vrf is directly used to divert traffic
3484 */
3485 if (!vrf_is_backend_netns() && bgp->vrf_id != nh->vrf_id)
3486 return;
3487
f7df1907 3488 memset(&p, 0, sizeof(struct prefix));
f01e580f 3489 if (afi != AFI_IP && afi != AFI_IP6)
f7df1907 3490 return;
f01e580f 3491 p.family = afi2family(afi);
f7df1907
PG		 3492 memset(&api, 0, sizeof(api));
3493 api.vrf_id = bgp->vrf_id;
3494 api.type = ZEBRA_ROUTE_BGP;
3495 api.safi = SAFI_UNICAST;
3496 api.prefix = p;
3497 api.tableid = table_id;
3498 api.nexthop_num = 1;
3499 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
3500 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
3501 api_nh = &api.nexthops[0];
3502
38a8c751
DS		 3503 api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT;
3504 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
3505
f7df1907 3506 /* redirect IP */
f01e580f 3507 if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) {
f7df1907
PG		 3508 char buff[PREFIX_STRLEN];
3509
3510 api_nh->vrf_id = nh->vrf_id;
3511 api_nh->gate.ipv4 = nh->gate.ipv4;
3512 api_nh->type = NEXTHOP_TYPE_IPV4;
3513
3514 inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN);
3515 if (BGP_DEBUG(zebra, ZEBRA))
f01e580f
PG		 3516 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
3517 announce ? "adding" : "withdrawing",
3518 buff, table_id);
3519 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3520 : ZEBRA_ROUTE_DELETE,
3521 zclient, &api);
3522 } else if (afi == AFI_IP6 &&
3523 memcmp(&nh->gate.ipv6,
3524 &in6addr_any, sizeof(struct in6_addr))) {
3525 char buff[PREFIX_STRLEN];
3526
3527 api_nh->vrf_id = nh->vrf_id;
3528 memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6,
3529 sizeof(struct in6_addr));
3530 api_nh->type = NEXTHOP_TYPE_IPV6;
3531
3532 inet_ntop(AF_INET6, &(nh->gate.ipv6), buff, INET_ADDRSTRLEN);
3533 if (BGP_DEBUG(zebra, ZEBRA))
3534 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
d887503c 3535 announce ? "adding" : "withdrawing",
f7df1907
PG		 3536 buff, table_id);
3537 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3538 : ZEBRA_ROUTE_DELETE,
3539 zclient, &api);
3540 } else if (nh->vrf_id != bgp->vrf_id) {
3541 struct vrf *vrf;
eb4244f8 3542 struct interface *ifp;
f7df1907 3543
eb4244f8 3544 vrf = vrf_lookup_by_id(nh->vrf_id);
f7df1907
PG		 3545 if (!vrf)
3546 return;
eb4244f8
PG		 3547 /* create default route with interface <VRF>
3548 * with nexthop-vrf <VRF>
f7df1907 3549 */
de4f1a66 3550 ifp = if_lookup_by_name_vrf(vrf->name, vrf);
eb4244f8
PG		 3551 if (!ifp)
3552 return;
3553 api_nh->vrf_id = nh->vrf_id;
3554 api_nh->type = NEXTHOP_TYPE_IFINDEX;
3555 api_nh->ifindex = ifp->ifindex;
3556 if (BGP_DEBUG(zebra, ZEBRA))
d887503c
PG		 3557 zlog_info("BGP: %s default route to %s table %d (redirect VRF)",
3558 announce ? "adding" : "withdrawing",
eb4244f8
PG		 3559 vrf->name, table_id);
3560 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3561 : ZEBRA_ROUTE_DELETE,
3562 zclient, &api);
f7df1907
PG		 3563 return;
3564 }
3565}
85ef4179 3566
3567/* Send capabilities to RIB */
3568int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable)
3569{
3570 struct zapi_cap api;
3571 int ret = BGP_GR_SUCCESS;
3572
3573 if (zclient == NULL) {
3574 if (BGP_DEBUG(zebra, ZEBRA))
3575 zlog_debug("zclient invalid");
3576 return BGP_GR_FAILURE;
3577 }
3578
3579 /* Check if the client is connected */
3580 if ((zclient->sock < 0) || (zclient->t_connect)) {
3581 if (BGP_DEBUG(zebra, ZEBRA))
3582 zlog_debug("client not connected");
3583 return BGP_GR_FAILURE;
3584 }
3585
3586 /* Check if capability is already sent. If the flag force is set
3587 * send the capability since this can be initial bgp configuration
3588 */
3589 memset(&api, 0, sizeof(struct zapi_cap));
3590 if (disable) {
3591 api.cap = ZEBRA_CLIENT_GR_DISABLE;
3592 api.vrf_id = bgp->vrf_id;
3593 } else {
3594 api.cap = ZEBRA_CLIENT_GR_CAPABILITIES;
3595 api.stale_removal_time = bgp->rib_stale_time;
3596 api.vrf_id = bgp->vrf_id;
3597 }
3598
36235319 3599 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
7cfdb485 3600 == ZCLIENT_SEND_FAILURE) {
2ba1fe69 3601 zlog_err("error sending capability");
85ef4179 3602 ret = BGP_GR_FAILURE;
3603 } else {
3604 if (disable)
3605 bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE;
3606 else
3607 bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE;
3608
3609 if (BGP_DEBUG(zebra, ZEBRA))
3610 zlog_debug("send capabilty success");
3611 ret = BGP_GR_SUCCESS;
3612 }
3613 return ret;
3614}
3615
3616/* Send route update pesding or completed status to RIB for the
3617 * specific AFI, SAFI
3618 */
3619int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type)
3620{
2ba1fe69 3621 struct zapi_cap api = {0};
85ef4179 3622
3623 if (zclient == NULL) {
3624 if (BGP_DEBUG(zebra, ZEBRA))
2ba1fe69 3625 zlog_debug("zclient == NULL, invalid");
85ef4179 3626 return BGP_GR_FAILURE;
3627 }
3628
3629 /* Check if the client is connected */
3630 if ((zclient->sock < 0) || (zclient->t_connect)) {
3631 if (BGP_DEBUG(zebra, ZEBRA))
3632 zlog_debug("client not connected");
3633 return BGP_GR_FAILURE;
3634 }
3635
85ef4179 3636 api.afi = afi;
3637 api.safi = safi;
3638 api.vrf_id = vrf_id;
3639 api.cap = type;
3640
36235319 3641 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
7cfdb485 3642 == ZCLIENT_SEND_FAILURE) {
85ef4179 3643 if (BGP_DEBUG(zebra, ZEBRA))
3644 zlog_debug("error sending capability");
3645 return BGP_GR_FAILURE;
3646 }
3647 return BGP_GR_SUCCESS;
3648}
3649
3650
85ef4179 3651/* Send RIB stale timer update */
3652int bgp_zebra_stale_timer_update(struct bgp *bgp)
3653{
3654 struct zapi_cap api;
3655
3656 if (zclient == NULL) {
3657 if (BGP_DEBUG(zebra, ZEBRA))
3658 zlog_debug("zclient invalid");
3659 return BGP_GR_FAILURE;
3660 }
3661
3662 /* Check if the client is connected */
3663 if ((zclient->sock < 0) || (zclient->t_connect)) {
3664 if (BGP_DEBUG(zebra, ZEBRA))
3665 zlog_debug("client not connected");
3666 return BGP_GR_FAILURE;
3667 }
3668
3669 memset(&api, 0, sizeof(struct zapi_cap));
3670 api.cap = ZEBRA_CLIENT_RIB_STALE_TIME;
3671 api.stale_removal_time = bgp->rib_stale_time;
3672 api.vrf_id = bgp->vrf_id;
36235319 3673 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
7cfdb485 3674 == ZCLIENT_SEND_FAILURE) {
85ef4179 3675 if (BGP_DEBUG(zebra, ZEBRA))
3676 zlog_debug("error sending capability");
3677 return BGP_GR_FAILURE;
3678 }
3679 if (BGP_DEBUG(zebra, ZEBRA))
3680 zlog_debug("send capabilty success");
3681 return BGP_GR_SUCCESS;
3682}
a0281b2e
HS		 3683
3684int bgp_zebra_srv6_manager_get_locator_chunk(const char *name)
3685{
3686 return srv6_manager_get_locator_chunk(zclient, name);
3687}
0249b8b6
HS		 3688
3689int bgp_zebra_srv6_manager_release_locator_chunk(const char *name)
3690{
3691 return srv6_manager_release_locator_chunk(zclient, name);
3692}
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