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Merge pull request #10213 from idryzhov/isis-adj-uaf
[mirror_frr.git] / bgpd / bgp_zebra.c
CommitLineData
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
096f7609 209 bgp = ifp->vrf->info;
a4499b83 210
d62a17ae 211 if (BGP_DEBUG(zebra, ZEBRA))
096f7609
IR		 212 zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf->vrf_id,
213 ifp->name);
a39275d7 214
0d020cd6 215 if (bgp) {
85751d1d 216 bgp_update_interface_nbrs(bgp, ifp, NULL);
0d020cd6
PR		 217 hook_call(bgp_vrf_status_changed, bgp, ifp);
218 }
64745052 219
6a69ac51
DS		 220 bgp_mac_del_mac_entry(ifp);
221
d62a17ae 222 return 0;
718e3744 223}
224
ddbf3e60 225static int bgp_ifp_up(struct interface *ifp)
718e3744 226{
d62a17ae 227 struct connected *c;
228 struct nbr_connected *nc;
229 struct listnode *node, *nnode;
230 struct bgp *bgp;
6aeb9e78 231
096f7609 232 bgp = ifp->vrf->info;
718e3744 233
6a69ac51
DS		 234 bgp_mac_add_mac_entry(ifp);
235
d62a17ae 236 if (BGP_DEBUG(zebra, ZEBRA))
096f7609
IR		 237 zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf->vrf_id,
238 ifp->name);
ad4cbda1 239
85751d1d
DS		 240 if (!bgp)
241 return 0;
242
d62a17ae 243 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
244 bgp_connected_add(bgp, c);
718e3744 245
d62a17ae 246 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
247 bgp_nbr_connected_add(bgp, nc);
a80beece 248
0d020cd6 249 hook_call(bgp_vrf_status_changed, bgp, ifp);
8761cd6d
DS		 250 bgp_nht_ifp_up(ifp);
251
d62a17ae 252 return 0;
718e3744 253}
254
b0b69e59 255static int bgp_ifp_down(struct interface *ifp)
718e3744 256{
d62a17ae 257 struct connected *c;
258 struct nbr_connected *nc;
259 struct listnode *node, *nnode;
260 struct bgp *bgp;
c19fe3c7 261 struct peer *peer;
6aeb9e78 262
096f7609 263 bgp = ifp->vrf->info;
718e3744 264
6a69ac51
DS		 265 bgp_mac_del_mac_entry(ifp);
266
d62a17ae 267 if (BGP_DEBUG(zebra, ZEBRA))
096f7609
IR		 268 zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf->vrf_id,
269 ifp->name);
ad4cbda1 270
85751d1d
DS		 271 if (!bgp)
272 return 0;
273
d62a17ae 274 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
275 bgp_connected_delete(bgp, c);
718e3744 276
d62a17ae 277 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
278 bgp_nbr_connected_delete(bgp, nc, 1);
a80beece 279
d62a17ae 280 /* Fast external-failover */
c19fe3c7 281 if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) {
718e3744 282
d62a17ae 283 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
50bd8995 284 /* Take down directly connected peers. */
c8d6f0d6 285 if ((peer->ttl != BGP_DEFAULT_TTL)
e2521429 286 && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED))
d62a17ae 287 continue;
718e3744 288
d62a17ae 289 if (ifp == peer->nexthop.ifp) {
290 BGP_EVENT_ADD(peer, BGP_Stop);
291 peer->last_reset = PEER_DOWN_IF_DOWN;
292 }
293 }
294 }
718e3744 295
0d020cd6 296 hook_call(bgp_vrf_status_changed, bgp, ifp);
8761cd6d
DS		 297 bgp_nht_ifp_down(ifp);
298
d62a17ae 299 return 0;
718e3744 300}
301
121f9dee 302static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS)
718e3744 303{
d62a17ae 304 struct connected *ifc;
2f9123e0
DS		 305 struct bgp *bgp;
306
307 bgp = bgp_lookup_by_vrf_id(vrf_id);
d62a17ae 308
121f9dee 309 ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
d62a17ae 310
311 if (ifc == NULL)
312 return 0;
313
2dbe669b
DA		 314 if (bgp_debug_zebra(ifc->address))
315 zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id,
316 ifc->ifp->name, ifc->address);
d62a17ae 317
85751d1d
DS		 318 if (!bgp)
319 return 0;
320
d62a17ae 321 if (if_is_operative(ifc->ifp)) {
d62a17ae 322 bgp_connected_add(bgp, ifc);
2f9123e0 323
d62a17ae 324 /* If we have learnt of any neighbors on this interface,
325 * check to kick off any BGP interface-based neighbors,
326 * but only if this is a link-local address.
327 */
328 if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6)
329 && !list_isempty(ifc->ifp->nbr_connected))
330 bgp_start_interface_nbrs(bgp, ifc->ifp);
331 }
332
333 return 0;
718e3744 334}
335
121f9dee 336static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS)
718e3744 337{
f3d20a2a 338 struct listnode *node, *nnode;
d62a17ae 339 struct connected *ifc;
f3d20a2a 340 struct peer *peer;
d62a17ae 341 struct bgp *bgp;
f3d20a2a 342 struct prefix *addr;
6aeb9e78 343
2f9123e0 344 bgp = bgp_lookup_by_vrf_id(vrf_id);
2f9123e0 345
121f9dee 346 ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
718e3744 347
d62a17ae 348 if (ifc == NULL)
349 return 0;
718e3744 350
2dbe669b
DA		 351 if (bgp_debug_zebra(ifc->address))
352 zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id,
353 ifc->ifp->name, ifc->address);
a39275d7 354
85751d1d 355 if (bgp && if_is_operative(ifc->ifp)) {
2f9123e0 356 bgp_connected_delete(bgp, ifc);
d62a17ae 357 }
718e3744 358
f3d20a2a
DS		 359 addr = ifc->address;
360
361 if (bgp) {
362 /*
363 * When we are using the v6 global as part of the peering
364 * nexthops and we are removing it, then we need to
365 * clear the peer data saved for that nexthop and
366 * cause a re-announcement of the route. Since
367 * we do not want the peering to bounce.
368 */
369 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
370 afi_t afi;
371 safi_t safi;
372
373 if (addr->family == AF_INET)
374 continue;
375
376 if (!IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6)
377 && memcmp(&peer->nexthop.v6_global,
378 &addr->u.prefix6, 16)
379 == 0) {
380 memset(&peer->nexthop.v6_global, 0, 16);
381 FOREACH_AFI_SAFI (afi, safi)
382 bgp_announce_route(peer, afi, safi,
383 true);
384 }
385 }
386 }
387
721c0857 388 connected_free(&ifc);
718e3744 389
d62a17ae 390 return 0;
718e3744 391}
392
121f9dee 393static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS)
a80beece 394{
d62a17ae 395 struct nbr_connected *ifc = NULL;
396 struct bgp *bgp;
397
121f9dee 398 ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id);
d62a17ae 399
400 if (ifc == NULL)
401 return 0;
402
2dbe669b
DA		 403 if (bgp_debug_zebra(ifc->address))
404 zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX",
405 vrf_id, ifc->ifp->name, ifc->address);
d62a17ae 406
407 if (if_is_operative(ifc->ifp)) {
408 bgp = bgp_lookup_by_vrf_id(vrf_id);
409 if (bgp)
410 bgp_nbr_connected_add(bgp, ifc);
411 }
412
413 return 0;
a80beece
DS		 414}
415
121f9dee 416static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS)
a80beece 417{
d62a17ae 418 struct nbr_connected *ifc = NULL;
419 struct bgp *bgp;
6aeb9e78 420
121f9dee 421 ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id);
a80beece 422
d62a17ae 423 if (ifc == NULL)
424 return 0;
a80beece 425
2dbe669b
DA		 426 if (bgp_debug_zebra(ifc->address))
427 zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX",
428 vrf_id, ifc->ifp->name, ifc->address);
a80beece 429
d62a17ae 430 if (if_is_operative(ifc->ifp)) {
431 bgp = bgp_lookup_by_vrf_id(vrf_id);
432 if (bgp)
433 bgp_nbr_connected_delete(bgp, ifc, 0);
434 }
a80beece 435
d62a17ae 436 nbr_connected_free(ifc);
a80beece 437
d62a17ae 438 return 0;
a80beece
DS		 439}
440
bfcd43b2 441/* VRF update for an interface. */
121f9dee 442static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS)
bfcd43b2 443{
d62a17ae 444 struct interface *ifp;
445 vrf_id_t new_vrf_id;
446 struct connected *c;
447 struct nbr_connected *nc;
448 struct listnode *node, *nnode;
449 struct bgp *bgp;
c19fe3c7 450 struct peer *peer;
bfcd43b2 451
d62a17ae 452 ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id,
453 &new_vrf_id);
454 if (!ifp)
455 return 0;
bfcd43b2 456
d62a17ae 457 if (BGP_DEBUG(zebra, ZEBRA) && ifp)
458 zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id,
459 ifp->name, new_vrf_id);
bfcd43b2 460
d62a17ae 461 bgp = bgp_lookup_by_vrf_id(vrf_id);
bfcd43b2 462
85751d1d
DS		 463 if (bgp) {
464 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
465 bgp_connected_delete(bgp, c);
bfcd43b2 466
85751d1d
DS		 467 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
468 bgp_nbr_connected_delete(bgp, nc, 1);
bfcd43b2 469
85751d1d
DS		 470 /* Fast external-failover */
471 if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) {
472 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
c8d6f0d6 473 if ((peer->ttl != BGP_DEFAULT_TTL)
e2521429
DA		 474 && (peer->gtsm_hops
475 != BGP_GTSM_HOPS_CONNECTED))
85751d1d 476 continue;
bfcd43b2 477
85751d1d
DS		 478 if (ifp == peer->nexthop.ifp)
479 BGP_EVENT_ADD(peer, BGP_Stop);
480 }
d62a17ae 481 }
482 }
bfcd43b2 483
a36898e7 484 if_update_to_new_vrf(ifp, new_vrf_id);
bfcd43b2 485
d62a17ae 486 bgp = bgp_lookup_by_vrf_id(new_vrf_id);
487 if (!bgp)
488 return 0;
bfcd43b2 489
d62a17ae 490 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
491 bgp_connected_add(bgp, c);
bfcd43b2 492
d62a17ae 493 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
494 bgp_nbr_connected_add(bgp, nc);
0d020cd6
PR		 495
496 hook_call(bgp_vrf_status_changed, bgp, ifp);
d62a17ae 497 return 0;
bfcd43b2 498}
499
718e3744 500/* Zebra route add and delete treatment. */
121f9dee 501static int zebra_read_route(ZAPI_CALLBACK_ARGS)
718e3744 502{
9de1f7ff 503 enum nexthop_types_t nhtype;
0789eb69 504 enum blackhole_type bhtype = BLACKHOLE_UNSPEC;
74489921 505 struct zapi_route api;
0789eb69 506 union g_addr nexthop = {};
9de1f7ff 507 ifindex_t ifindex;
74489921 508 int add, i;
d62a17ae 509 struct bgp *bgp;
510
511 bgp = bgp_lookup_by_vrf_id(vrf_id);
512 if (!bgp)
513 return 0;
514
74489921
RW		 515 if (zapi_route_decode(zclient->ibuf, &api) < 0)
516 return -1;
d62a17ae 517
74489921
RW		 518 /* we completely ignore srcdest routes for now. */
519 if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX))
520 return 0;
d62a17ae 521
74489921
RW		 522 /* ignore link-local address. */
523 if (api.prefix.family == AF_INET6
524 && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6))
525 return 0;
d62a17ae 526
74489921 527 ifindex = api.nexthops[0].ifindex;
9de1f7ff 528 nhtype = api.nexthops[0].type;
d62a17ae 529
0789eb69
KM		 530 /* api_nh structure has union of gate and bh_type */
531 if (nhtype == NEXTHOP_TYPE_BLACKHOLE) {
532 /* bh_type is only applicable if NEXTHOP_TYPE_BLACKHOLE*/
533 bhtype = api.nexthops[0].bh_type;
534 } else
535 nexthop = api.nexthops[0].gate;
536
121f9dee 537 add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD);
74489921 538 if (add) {
d62a17ae 539 /*
540 * The ADD message is actually an UPDATE and there is no
541 * explicit DEL
542 * for a prior redistributed route, if any. So, perform an
543 * implicit
544 * DEL processing for the same redistributed route from any
545 * other
546 * source type.
547 */
548 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
549 if (i != api.type)
74489921 550 bgp_redistribute_delete(bgp, &api.prefix, i,
d62a17ae 551 api.instance);
552 }
553
554 /* Now perform the add/update. */
74489921 555 bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex,
0789eb69
KM		 556 nhtype, bhtype, api.distance, api.metric,
557 api.type, api.instance, api.tag);
d62a17ae 558 } else {
74489921
RW		 559 bgp_redistribute_delete(bgp, &api.prefix, api.type,
560 api.instance);
a39275d7 561 }
d62a17ae 562
74489921 563 if (bgp_debug_zebra(&api.prefix)) {
2dbe669b 564 char buf[PREFIX_STRLEN];
74489921 565
77e62f2b 566 if (add) {
2dbe669b
DA		 567 inet_ntop(api.prefix.family, &nexthop, buf,
568 sizeof(buf));
77e62f2b 569 zlog_debug(
801bb996 570 "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI,
77e62f2b 571 vrf_id, zebra_route_string(api.type),
2dbe669b 572 api.instance, &api.prefix, buf, nhtype, ifindex,
801bb996 573 api.metric, api.distance, api.tag);
77e62f2b 574 } else {
6bdbcbf1 575 zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id,
2dbe669b 576 zebra_route_string(api.type), api.instance,
6bdbcbf1 577 &api.prefix);
77e62f2b 578 }
d62a17ae 579 }
580
581 return 0;
718e3744 582}
6b0655a2 583
d62a17ae 584struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id)
718e3744 585{
f4e14fdb 586 struct vrf *vrf;
d62a17ae 587 struct listnode *cnode;
588 struct interface *ifp;
589 struct connected *connected;
590 struct prefix_ipv4 p;
591 struct prefix *cp;
592
f4e14fdb
RW		 593 vrf = vrf_lookup_by_id(vrf_id);
594 if (!vrf)
595 return NULL;
596
d62a17ae 597 p.family = AF_INET;
598 p.prefix = *addr;
599 p.prefixlen = IPV4_MAX_BITLEN;
600
451fda4f 601 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 602 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
603 cp = connected->address;
604
605 if (cp->family == AF_INET)
606 if (prefix_match(cp, (struct prefix *)&p))
607 return ifp;
608 }
718e3744 609 }
d62a17ae 610 return NULL;
718e3744 611}
612
d62a17ae 613struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id)
718e3744 614{
f4e14fdb 615 struct vrf *vrf;
d62a17ae 616 struct listnode *cnode;
617 struct interface *ifp;
618 struct connected *connected;
619 struct prefix *cp;
620
f4e14fdb
RW		 621 vrf = vrf_lookup_by_id(vrf_id);
622 if (!vrf)
623 return NULL;
624
451fda4f 625 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 626 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
627 cp = connected->address;
628
629 if (cp->family == AF_INET)
630 if (IPV4_ADDR_SAME(&cp->u.prefix4, addr))
631 return ifp;
632 }
718e3744 633 }
d62a17ae 634 return NULL;
718e3744 635}
636
d62a17ae 637struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex,
638 vrf_id_t vrf_id)
718e3744 639{
f4e14fdb 640 struct vrf *vrf;
d62a17ae 641 struct listnode *cnode;
642 struct interface *ifp;
643 struct connected *connected;
644 struct prefix_ipv6 p;
645 struct prefix *cp;
646
f4e14fdb
RW		 647 vrf = vrf_lookup_by_id(vrf_id);
648 if (!vrf)
649 return NULL;
650
d62a17ae 651 p.family = AF_INET6;
652 p.prefix = *addr;
653 p.prefixlen = IPV6_MAX_BITLEN;
654
451fda4f 655 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 656 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
657 cp = connected->address;
658
659 if (cp->family == AF_INET6)
660 if (prefix_match(cp, (struct prefix *)&p)) {
661 if (IN6_IS_ADDR_LINKLOCAL(
662 &cp->u.prefix6)) {
663 if (ifindex == ifp->ifindex)
664 return ifp;
665 } else
666 return ifp;
667 }
668 }
718e3744 669 }
d62a17ae 670 return NULL;
718e3744 671}
672
d62a17ae 673struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr,
674 ifindex_t ifindex, vrf_id_t vrf_id)
718e3744 675{
f4e14fdb 676 struct vrf *vrf;
d62a17ae 677 struct listnode *cnode;
678 struct interface *ifp;
679 struct connected *connected;
680 struct prefix *cp;
681
f4e14fdb
RW		 682 vrf = vrf_lookup_by_id(vrf_id);
683 if (!vrf)
684 return NULL;
685
451fda4f 686 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 687 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
688 cp = connected->address;
689
690 if (cp->family == AF_INET6)
691 if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) {
692 if (IN6_IS_ADDR_LINKLOCAL(
693 &cp->u.prefix6)) {
694 if (ifindex == ifp->ifindex)
695 return ifp;
696 } else
697 return ifp;
698 }
699 }
718e3744 700 }
d62a17ae 701 return NULL;
718e3744 702}
703
d62a17ae 704static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr)
718e3744 705{
d62a17ae 706 struct listnode *cnode;
707 struct connected *connected;
708 struct prefix *cp;
709
710 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
711 cp = connected->address;
712
713 if (cp->family == AF_INET6)
714 if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) {
715 memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN);
716 return 1;
717 }
718 }
719 return 0;
718e3744 720}
721
dac42f2e 722static bool if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr)
718e3744 723{
d62a17ae 724 struct listnode *cnode;
725 struct connected *connected;
726 struct prefix *cp;
727
728 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
729 cp = connected->address;
730
731 if (cp->family == AF_INET6)
732 if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) {
733 memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN);
dac42f2e 734 return true;
d62a17ae 735 }
736 }
dac42f2e 737 return false;
718e3744 738}
718e3744 739
d62a17ae 740static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr)
6ee06fa9 741{
d62a17ae 742 struct listnode *cnode;
743 struct connected *connected;
744 struct prefix *cp;
745
746 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
747 cp = connected->address;
748 if ((cp->family == AF_INET)
749 && !ipv4_martian(&(cp->u.prefix4))) {
750 *addr = cp->u.prefix4;
751 return 1;
752 }
753 }
754 return 0;
6ee06fa9
PM		 755}
756
17cdd31e
DS		 757
758bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote,
759 struct bgp_nexthop *nexthop, struct peer *peer)
718e3744 760{
d62a17ae 761 int ret = 0;
762 struct interface *ifp = NULL;
dac42f2e 763 bool v6_ll_avail = true;
d62a17ae 764
765 memset(nexthop, 0, sizeof(struct bgp_nexthop));
766
767 if (!local)
17cdd31e 768 return false;
d62a17ae 769 if (!remote)
17cdd31e 770 return false;
d62a17ae 771
772 if (local->sa.sa_family == AF_INET) {
773 nexthop->v4 = local->sin.sin_addr;
774 if (peer->update_if)
775 ifp = if_lookup_by_name(peer->update_if,
a36898e7 776 peer->bgp->vrf_id);
d62a17ae 777 else
778 ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr,
779 peer->bgp->vrf_id);
718e3744 780 }
d62a17ae 781 if (local->sa.sa_family == AF_INET6) {
8f2b2139 782 memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN);
d62a17ae 783 if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) {
784 if (peer->conf_if || peer->ifname)
785 ifp = if_lookup_by_name(peer->conf_if
786 ? peer->conf_if
787 : peer->ifname,
a36898e7 788 peer->bgp->vrf_id);
abe68054
PG		 789 else if (peer->update_if)
790 ifp = if_lookup_by_name(peer->update_if,
791 peer->bgp->vrf_id);
d62a17ae 792 } else if (peer->update_if)
793 ifp = if_lookup_by_name(peer->update_if,
a36898e7 794 peer->bgp->vrf_id);
d62a17ae 795 else
796 ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr,
797 local->sin6.sin6_scope_id,
798 peer->bgp->vrf_id);
718e3744 799 }
d62a17ae 800
17cdd31e
DS		 801 if (!ifp) {
802 /*
803 * BGP views do not currently get proper data
804 * from zebra( when attached ) to be able to
805 * properly resolve nexthops, so give this
806 * instance type a pass.
807 */
808 if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW)
809 return true;
810 /*
811 * If we have no interface data but we have established
812 * some connection w/ zebra than something has gone
813 * terribly terribly wrong here, so say this failed
814 * If we do not any zebra connection then not
815 * having a ifp pointer is ok.
816 */
817 return zclient_num_connects ? false : true;
818 }
d62a17ae 819
820 nexthop->ifp = ifp;
821
822 /* IPv4 connection, fetch and store IPv6 local address(es) if any. */
823 if (local->sa.sa_family == AF_INET) {
824 /* IPv6 nexthop*/
825 ret = if_get_ipv6_global(ifp, &nexthop->v6_global);
826
827 if (!ret) {
828 /* There is no global nexthop. Use link-local address as
829 * both the
830 * global and link-local nexthop. In this scenario, the
831 * expectation
832 * for interop is that the network admin would use a
833 * route-map to
834 * specify the global IPv6 nexthop.
835 */
dac42f2e
DS		 836 v6_ll_avail =
837 if_get_ipv6_local(ifp, &nexthop->v6_global);
d62a17ae 838 memcpy(&nexthop->v6_local, &nexthop->v6_global,
839 IPV6_MAX_BYTELEN);
840 } else
dac42f2e
DS		 841 v6_ll_avail =
842 if_get_ipv6_local(ifp, &nexthop->v6_local);
d62a17ae 843
dac42f2e
DS		 844 /*
845 * If we are a v4 connection and we are not doing unnumbered
846 * not having a v6 LL address is ok
847 */
848 if (!v6_ll_avail && !peer->conf_if)
849 v6_ll_avail = true;
d62a17ae 850 if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id))
851 peer->shared_network = 1;
852 else
853 peer->shared_network = 0;
718e3744 854 }
718e3744 855
d62a17ae 856 /* IPv6 connection, fetch and store IPv4 local address if any. */
857 if (local->sa.sa_family == AF_INET6) {
858 struct interface *direct = NULL;
859
860 /* IPv4 nexthop. */
861 ret = if_get_ipv4_address(ifp, &nexthop->v4);
975a328e 862 if (!ret && peer->local_id.s_addr != INADDR_ANY)
d62a17ae 863 nexthop->v4 = peer->local_id;
864
865 /* Global address*/
866 if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) {
867 memcpy(&nexthop->v6_global, &local->sin6.sin6_addr,
868 IPV6_MAX_BYTELEN);
869
870 /* If directory connected set link-local address. */
871 direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr,
872 remote->sin6.sin6_scope_id,
873 peer->bgp->vrf_id);
874 if (direct)
dac42f2e
DS		 875 v6_ll_avail = if_get_ipv6_local(
876 ifp, &nexthop->v6_local);
2ebb354c
IR		 877 /*
878 * It's fine to not have a v6 LL when using
879 * update-source loopback/vrf
880 */
608c8870 881 if (!v6_ll_avail && if_is_loopback(ifp))
2ebb354c 882 v6_ll_avail = true;
d62a17ae 883 } else
884 /* Link-local address. */
885 {
886 ret = if_get_ipv6_global(ifp, &nexthop->v6_global);
887
888 /* If there is no global address. Set link-local
889 address as
890 global. I know this break RFC specification... */
891 /* In this scenario, the expectation for interop is that
892 * the
893 * network admin would use a route-map to specify the
894 * global
895 * IPv6 nexthop.
896 */
897 if (!ret)
898 memcpy(&nexthop->v6_global,
899 &local->sin6.sin6_addr,
900 IPV6_MAX_BYTELEN);
901 /* Always set the link-local address */
902 memcpy(&nexthop->v6_local, &local->sin6.sin6_addr,
903 IPV6_MAX_BYTELEN);
904 }
905
906 if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)
907 || if_lookup_by_ipv6(&remote->sin6.sin6_addr,
908 remote->sin6.sin6_scope_id,
909 peer->bgp->vrf_id))
910 peer->shared_network = 1;
911 else
912 peer->shared_network = 0;
913 }
718e3744 914
d62a17ae 915/* KAME stack specific treatment. */
718e3744 916#ifdef KAME
d62a17ae 917 if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global)
918 && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) {
919 SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0);
920 }
921 if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local)
922 && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) {
923 SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0);
924 }
718e3744 925#endif /* KAME */
e33a4880 926
d62a17ae 927 /* If we have identified the local interface, there is no error for now.
928 */
dac42f2e 929 return v6_ll_avail;
718e3744 930}
931
18ee8310 932static struct in6_addr *
40381db7 933bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex)
73ac8160 934{
d62a17ae 935 struct in6_addr *nexthop = NULL;
936
937 /* Only global address nexthop exists. */
dc94fe42
RW		 938 if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL
939 || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) {
40381db7 940 nexthop = &path->attr->mp_nexthop_global;
77e62f2b 941 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 942 *ifindex = path->attr->nh_ifindex;
77e62f2b 943 }
d62a17ae 944
945 /* If both global and link-local address present. */
dc94fe42
RW		 946 if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
947 || path->attr->mp_nexthop_len
948 == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) {
d62a17ae 949 /* Check if route-map is set to prefer global over link-local */
40381db7
DS		 950 if (path->attr->mp_nexthop_prefer_global) {
951 nexthop = &path->attr->mp_nexthop_global;
77e62f2b 952 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 953 *ifindex = path->attr->nh_ifindex;
77e62f2b 954 } else {
d62a17ae 955 /* Workaround for Cisco's nexthop bug. */
956 if (IN6_IS_ADDR_UNSPECIFIED(
40381db7 957 &path->attr->mp_nexthop_global)
ab0e0f73 958 && path->peer->su_remote
40381db7 959 && path->peer->su_remote->sa.sa_family
59a0f1cb 960 == AF_INET6) {
d62a17ae 961 nexthop =
40381db7 962 &path->peer->su_remote->sin6.sin6_addr;
77e62f2b 963 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 964 *ifindex = path->peer->nexthop.ifp
59a0f1cb 965 ->ifindex;
77e62f2b 966 } else {
40381db7 967 nexthop = &path->attr->mp_nexthop_local;
77e62f2b 968 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 969 *ifindex = path->attr->nh_lla_ifindex;
77e62f2b 970 }
d62a17ae 971 }
972 }
973
974 return nexthop;
73ac8160
DS		 975}
976
b8685f9b 977static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p,
3dc339cd 978 struct bgp_path_info *path)
73ac8160 979{
b4cb15c6
DL		 980 route_map_result_t ret;
981
1782514f 982 ret = route_map_apply(map, p, path);
40381db7 983 bgp_attr_flush(path->attr);
b4cb15c6
DL		 984
985 if (ret != RMAP_DENYMATCH)
3dc339cd 986 return true;
d62a17ae 987
988 if (bgp_debug_zebra(p)) {
989 if (p->family == AF_INET) {
d62a17ae 990 zlog_debug(
c0d72166
DS		 991 "Zebra rmap deny: IPv4 route %pFX nexthop %pI4",
992 p, &path->attr->nexthop);
d62a17ae 993 }
994 if (p->family == AF_INET6) {
995 char buf[2][INET6_ADDRSTRLEN];
77e62f2b 996 ifindex_t ifindex;
997 struct in6_addr *nexthop;
998
40381db7 999 nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex);
d62a17ae 1000 zlog_debug(
8228a9a7
DS		 1001 "Zebra rmap deny: IPv6 route %pFX nexthop %s",
1002 p,
6b9265a3
DA		 1003 nexthop ? inet_ntop(AF_INET6, nexthop, buf[1],
1004 sizeof(buf[1]))
1005 : inet_ntop(AF_INET,
1006 &path->attr->nexthop,
1007 buf[1], sizeof(buf[1])));
d62a17ae 1008 }
1009 }
3dc339cd 1010 return false;
73ac8160
DS		 1011}
1012
b98f7728
PG		 1013static struct thread *bgp_tm_thread_connect;
1014static bool bgp_tm_status_connected;
31c28cd7
PG		 1015static bool bgp_tm_chunk_obtained;
1016#define BGP_FLOWSPEC_TABLE_CHUNK 100000
1017static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size;
6818e7e5 1018struct bgp *bgp_tm_bgp;
b98f7728
PG		 1019
1020static int bgp_zebra_tm_connect(struct thread *t)
1021{
1022 struct zclient *zclient;
1023 int delay = 10, ret = 0;
1024
1025 zclient = THREAD_ARG(t);
1026 if (bgp_tm_status_connected && zclient->sock > 0)
1027 delay = 60;
1028 else {
1029 bgp_tm_status_connected = false;
1030 ret = tm_table_manager_connect(zclient);
1031 }
1032 if (ret < 0) {
b7cd3069 1033 zlog_info("Error connecting to table manager!");
b98f7728
PG		 1034 bgp_tm_status_connected = false;
1035 } else {
1036 if (!bgp_tm_status_connected)
1037 zlog_debug("Connecting to table manager. Success");
1038 bgp_tm_status_connected = true;
31c28cd7
PG		 1039 if (!bgp_tm_chunk_obtained) {
1040 if (bgp_zebra_get_table_range(bgp_tm_chunk_size,
1041 &bgp_tm_min,
6818e7e5 1042 &bgp_tm_max) >= 0) {
31c28cd7 1043 bgp_tm_chunk_obtained = true;
6818e7e5
PG		 1044 /* parse non installed entries */
1045 bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC);
1046 }
31c28cd7 1047 }
b98f7728
PG		 1048 }
1049 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
1050 &bgp_tm_thread_connect);
1051 return 0;
1052}
1053
6818e7e5
PG		 1054bool bgp_zebra_tm_chunk_obtained(void)
1055{
1056 return bgp_tm_chunk_obtained;
1057}
1058
31c28cd7
PG		 1059uint32_t bgp_zebra_tm_get_id(void)
1060{
1061 static int table_id;
1062
1063 if (!bgp_tm_chunk_obtained)
1064 return ++table_id;
1065 return bgp_tm_min++;
1066}
1067
6818e7e5 1068void bgp_zebra_init_tm_connect(struct bgp *bgp)
b98f7728
PG		 1069{
1070 int delay = 1;
1071
1072 /* if already set, do nothing
1073 */
1074 if (bgp_tm_thread_connect != NULL)
1075 return;
1076 bgp_tm_status_connected = false;
31c28cd7
PG		 1077 bgp_tm_chunk_obtained = false;
1078 bgp_tm_min = bgp_tm_max = 0;
1079 bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK;
6818e7e5 1080 bgp_tm_bgp = bgp;
b98f7728
PG		 1081 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
1082 &bgp_tm_thread_connect);
1083}
1084
1085int bgp_zebra_get_table_range(uint32_t chunk_size,
1086 uint32_t *start, uint32_t *end)
1087{
1088 int ret;
1089
1090 if (!bgp_tm_status_connected)
1091 return -1;
1092 ret = tm_get_table_chunk(zclient, chunk_size, start, end);
1093 if (ret < 0) {
e50f7cfd 1094 flog_err(EC_BGP_TABLE_CHUNK,
1c50c1c0 1095 "BGP: Error getting table chunk %u", chunk_size);
b98f7728
PG		 1096 return -1;
1097 }
1098 zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]",
1099 chunk_size, *start, *end);
1100 return 0;
1101}
1102
3dc339cd
DA		 1103static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1104 struct in_addr *nexthop,
1105 struct attr *attr, bool is_evpn,
1106 struct zapi_nexthop *api_nh)
77e62f2b 1107{
1108 api_nh->gate.ipv4 = *nexthop;
e1e71450 1109 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1110
1111 /* Need to set fields appropriately for EVPN routes imported into
1112 * a VRF (which are programmed as onlink on l3-vni SVI) as well as
1113 * connected routes leaked into a VRF.
1114 */
0789eb69
KM		 1115 if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) {
1116 api_nh->type = attr->nh_type;
1117 api_nh->bh_type = attr->bh_type;
1118 } else if (is_evpn) {
a2299aba
AD		 1119 /*
1120 * If the nexthop is EVPN overlay index gateway IP,
1121 * treat the nexthop as NEXTHOP_TYPE_IPV4
1122 * Else, mark the nexthop as onlink.
1123 */
1124 if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP)
1125 api_nh->type = NEXTHOP_TYPE_IPV4;
1126 else {
1127 api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
1128 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
1129 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1130 }
0789eb69 1131 } else if (nh_othervrf && api_nh->gate.ipv4.s_addr == INADDR_ANY) {
77e62f2b 1132 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1133 api_nh->ifindex = attr->nh_ifindex;
1134 } else
1135 api_nh->type = NEXTHOP_TYPE_IPV4;
1136
3dc339cd 1137 return true;
77e62f2b 1138}
1139
3dc339cd
DA		 1140static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1141 struct in6_addr *nexthop,
1142 ifindex_t ifindex,
1143 struct bgp_path_info *pi,
1144 struct bgp_path_info *best_pi,
1145 bool is_evpn,
1146 struct zapi_nexthop *api_nh)
77e62f2b 1147{
1148 struct attr *attr;
1149
40381db7 1150 attr = pi->attr;
e1e71450 1151 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1152
0789eb69
KM		 1153 if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) {
1154 api_nh->type = attr->nh_type;
1155 api_nh->bh_type = attr->bh_type;
1156 } else if (is_evpn) {
a2299aba
AD		 1157 /*
1158 * If the nexthop is EVPN overlay index gateway IP,
1159 * treat the nexthop as NEXTHOP_TYPE_IPV4
1160 * Else, mark the nexthop as onlink.
1161 */
1162 if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP)
1163 api_nh->type = NEXTHOP_TYPE_IPV6;
1164 else {
1165 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1166 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
1167 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1168 }
e1e71450 1169 } else if (nh_othervrf) {
77e62f2b 1170 if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) {
1171 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1172 api_nh->ifindex = attr->nh_ifindex;
1173 } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
1174 if (ifindex == 0)
3dc339cd 1175 return false;
77e62f2b 1176 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1177 api_nh->ifindex = ifindex;
1178 } else {
1179 api_nh->type = NEXTHOP_TYPE_IPV6;
1180 api_nh->ifindex = 0;
1181 }
1182 } else {
1183 if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
40381db7
DS		 1184 if (pi == best_pi
1185 && attr->mp_nexthop_len
1186 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL)
1187 if (pi->peer->nexthop.ifp)
1188 ifindex =
1189 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1190 if (!ifindex) {
40381db7
DS		 1191 if (pi->peer->conf_if)
1192 ifindex = pi->peer->ifp->ifindex;
1193 else if (pi->peer->ifname)
77e62f2b 1194 ifindex = ifname2ifindex(
40381db7
DS		 1195 pi->peer->ifname,
1196 pi->peer->bgp->vrf_id);
1197 else if (pi->peer->nexthop.ifp)
1198 ifindex =
1199 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1200 }
1201
1202 if (ifindex == 0)
3dc339cd 1203 return false;
77e62f2b 1204 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1205 api_nh->ifindex = ifindex;
1206 } else {
1207 api_nh->type = NEXTHOP_TYPE_IPV6;
1208 api_nh->ifindex = 0;
1209 }
1210 }
0789eb69
KM		 1211 /* api_nh structure has union of gate and bh_type */
1212 if (nexthop && api_nh->type != NEXTHOP_TYPE_BLACKHOLE)
c2ca3e25 1213 api_nh->gate.ipv6 = *nexthop;
77e62f2b 1214
3dc339cd 1215 return true;
77e62f2b 1216}
1217
f7e1c681 1218static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr,
1219 uint64_t tot_bw, uint32_t *nh_weight)
4e30bc2b 1220{
f7e1c681 1221 uint32_t bw;
1222 uint64_t tmp;
1223
1224 bw = attr->link_bw;
1225 /* zero link-bandwidth and link-bandwidth not present are treated
1226 * as the same situation.
1227 */
1228 if (!bw) {
1229 /* the only situations should be if we're either told
1230 * to skip or use default weight.
1231 */
1232 if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING)
1233 return false;
1234 *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT;
1235 } else {
1236 tmp = (uint64_t)bw * 100;
1237 *nh_weight = ((uint32_t)(tmp / tot_bw));
1238 }
1239
1240 return true;
4e30bc2b 1241}
1242
9bcb3eef 1243void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p,
4b7e6066 1244 struct bgp_path_info *info, struct bgp *bgp, afi_t afi,
d62a17ae 1245 safi_t safi)
718e3744 1246{
7cc27d41 1247 struct zapi_route api = { 0 };
9913029c 1248 struct zapi_nexthop *api_nh;
2ad4f093 1249 int nh_family;
a74e593b 1250 unsigned int valid_nh_count = 0;
1a9cb083 1251 bool allow_recursion = false;
d7c0a89a 1252 uint8_t distance;
d62a17ae 1253 struct peer *peer;
4b7e6066 1254 struct bgp_path_info *mpinfo;
ad1844f7 1255 struct bgp *bgp_orig;
d7c0a89a 1256 uint32_t metric;
b4cb15c6 1257 struct attr local_attr;
4b7e6066
DS		 1258 struct bgp_path_info local_info;
1259 struct bgp_path_info *mpinfo_cp = &local_info;
d62a17ae 1260 route_tag_t tag;
1261 mpls_label_t label;
ddb5b488 1262 int nh_othervrf = 0;
3f54c705 1263 bool is_evpn;
06f16b2c 1264 bool nh_updated = false;
4e30bc2b 1265 bool do_wt_ecmp;
1266 uint64_t cum_bw = 0;
6348981a
AK		 1267 uint32_t nhg_id = 0;
1268 bool is_add;
d62a17ae 1269
1270 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1271 * know of this instance.
1272 */
1273 if (!bgp_install_info_to_zebra(bgp))
1274 return;
1275
d62a17ae 1276 if (bgp->main_zebra_update_hold)
1277 return;
1278
d90b788e 1279 if (safi == SAFI_FLOWSPEC) {
9bcb3eef
DS		 1280 bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi,
1281 safi, true);
d90b788e
A		 1282 return;
1283 }
529efa23 1284
ddb5b488
PZ		 1285 /*
1286 * vrf leaking support (will have only one nexthop)
1287 */
1288 if (info->extra && info->extra->bgp_orig)
1289 nh_othervrf = 1;
1290
9913029c 1291 /* Make Zebra API structure. */
9913029c
RW		 1292 api.vrf_id = bgp->vrf_id;
1293 api.type = ZEBRA_ROUTE_BGP;
1294 api.safi = safi;
1295 api.prefix = *p;
1296 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
1297
d62a17ae 1298 peer = info->peer;
1299
ddb5b488
PZ		 1300 if (info->type == ZEBRA_ROUTE_BGP
1301 && info->sub_type == BGP_ROUTE_IMPORTED) {
1302
1ec90b5e 1303 /* Obtain peer from parent */
1304 if (info->extra && info->extra->parent)
4b7e6066
DS		 1305 peer = ((struct bgp_path_info *)(info->extra->parent))
1306 ->peer;
ddb5b488
PZ		 1307 }
1308
d62a17ae 1309 tag = info->attr->tag;
1310
88493076 1311 /* If the route's source is EVPN, flag as such. */
77e62f2b 1312 is_evpn = is_route_parent_evpn(info);
1313 if (is_evpn)
90264d64 1314 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
d3135ba3 1315
d62a17ae 1316 if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED
1317 || info->sub_type == BGP_ROUTE_AGGREGATE) {
9913029c 1318 SET_FLAG(api.flags, ZEBRA_FLAG_IBGP);
4e8b02f4 1319 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
718e3744 1320 }
a39275d7 1321
c8d6f0d6 1322 if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL)
d62a17ae 1323 || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)
892fedb6 1324 || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK))
d62a17ae 1325
1a9cb083 1326 allow_recursion = true;
d62a17ae 1327
951745bd
PG		 1328 if (info->attr->rmap_table_id) {
1329 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1330 api.tableid = info->attr->rmap_table_id;
1331 }
1332
ef3e0d04
SM		 1333 if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1334 SET_FLAG(api.message, ZAPI_MESSAGE_SRTE);
1335
2ad4f093
RW		 1336 /* Metric is currently based on the best-path only */
1337 metric = info->attr->med;
4e30bc2b 1338
1339 /* Determine if we're doing weighted ECMP or not */
f7e1c681 1340 do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info);
4e30bc2b 1341 if (do_wt_ecmp)
1342 cum_bw = bgp_path_info_mpath_cumbw(info);
1343
6348981a 1344 /* EVPN MAC-IP routes are installed with a L3 NHG id */
8bcb09a1 1345 if (bgp_evpn_path_es_use_nhg(bgp, info, &nhg_id)) {
6348981a 1346 mpinfo = NULL;
8bcb09a1
AK		 1347 api.nhgid = nhg_id;
1348 if (nhg_id)
1349 SET_FLAG(api.message, ZAPI_MESSAGE_NHG);
1350 } else {
6348981a 1351 mpinfo = info;
8bcb09a1 1352 }
6348981a
AK		 1353
1354 for (; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) {
f7e1c681 1355 uint32_t nh_weight;
1356
a74e593b
RW		 1357 if (valid_nh_count >= multipath_num)
1358 break;
1359
b4cb15c6 1360 *mpinfo_cp = *mpinfo;
f7e1c681 1361 nh_weight = 0;
b4cb15c6 1362
d0d695f4
RW		 1363 /* Get nexthop address-family */
1364 if (p->family == AF_INET
1365 && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))
1366 nh_family = AF_INET;
1367 else if (p->family == AF_INET6
1368 || (p->family == AF_INET
1369 && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)))
1370 nh_family = AF_INET6;
1371 else
1372 continue;
1373
f7e1c681 1374 /* If processing for weighted ECMP, determine the next hop's
1375 * weight. Based on user setting, we may skip the next hop
1376 * in some situations.
1377 */
1378 if (do_wt_ecmp) {
1379 if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr,
1380 cum_bw, &nh_weight))
1381 continue;
1382 }
1374aec9 1383 api_nh = &api.nexthops[valid_nh_count];
ef3e0d04
SM		 1384
1385 if (CHECK_FLAG(info->attr->flag,
1386 ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1387 api_nh->srte_color = info->attr->srte_color;
1388
257b7b6e
DS		 1389 if (bgp_debug_zebra(&api.prefix)) {
1390 if (mpinfo->extra) {
70492dea
DS		 1391 zlog_debug("%s: p=%pFX, bgp_is_valid_label: %d",
1392 __func__, p,
257b7b6e
DS		 1393 bgp_is_valid_label(
1394 &mpinfo->extra->label[0]));
1395 } else {
70492dea
DS		 1396 zlog_debug(
1397 "%s: p=%pFX, extra is NULL, no label",
1398 __func__, p);
ddb5b488 1399 }
257b7b6e 1400 }
ddb5b488 1401
257b7b6e
DS		 1402 if (bgp->table_map[afi][safi].name) {
1403 /* Copy info and attributes, so the route-map
1404 apply doesn't modify the BGP route info. */
1405 local_attr = *mpinfo->attr;
1406 mpinfo_cp->attr = &local_attr;
1407 if (!bgp_table_map_apply(bgp->table_map[afi][safi].map,
1408 p, mpinfo_cp))
1409 continue;
b4cb15c6 1410
257b7b6e
DS		 1411 /* metric/tag is only allowed to be
1412 * overridden on 1st nexthop */
1413 if (mpinfo == info) {
1414 metric = mpinfo_cp->attr->med;
1415 tag = mpinfo_cp->attr->tag;
b4cb15c6 1416 }
257b7b6e 1417 }
d62a17ae 1418
ad1844f7
IS		 1419 BGP_ORIGINAL_UPDATE(bgp_orig, mpinfo, bgp);
1420
257b7b6e 1421 if (nh_family == AF_INET) {
77e62f2b 1422 nh_updated = update_ipv4nh_for_route_install(
ad1844f7
IS		 1423 nh_othervrf, bgp_orig,
1424 &mpinfo_cp->attr->nexthop, mpinfo_cp->attr,
1425 is_evpn, api_nh);
2ad4f093 1426 } else {
f220da99 1427 ifindex_t ifindex = IFINDEX_INTERNAL;
2ad4f093 1428 struct in6_addr *nexthop;
9913029c 1429
18ee8310
DS		 1430 nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp,
1431 &ifindex);
00c10664
DA		 1432
1433 if (!nexthop)
1434 nh_updated = update_ipv4nh_for_route_install(
ad1844f7 1435 nh_othervrf, bgp_orig,
00c10664
DA		 1436 &mpinfo_cp->attr->nexthop,
1437 mpinfo_cp->attr, is_evpn, api_nh);
1438 else
1439 nh_updated = update_ipv6nh_for_route_install(
ad1844f7
IS		 1440 nh_othervrf, bgp_orig, nexthop, ifindex,
1441 mpinfo, info, is_evpn, api_nh);
2ad4f093 1442 }
d62a17ae 1443
77e62f2b 1444 /* Did we get proper nexthop info to update zebra? */
1445 if (!nh_updated)
1446 continue;
1447
1a9cb083
JM		 1448 /* Allow recursion if it is a multipath group with both
1449 * eBGP and iBGP paths.
1450 */
1451 if (!allow_recursion
1452 && CHECK_FLAG(bgp->flags, BGP_FLAG_PEERTYPE_MULTIPATH_RELAX)
1453 && (mpinfo->peer->sort == BGP_PEER_IBGP
1454 || mpinfo->peer->sort == BGP_PEER_CONFED))
1455 allow_recursion = true;
1456
a4d82a8a
PZ		 1457 if (mpinfo->extra
1458 && bgp_is_valid_label(&mpinfo->extra->label[0])
90264d64 1459 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
b57ba6d2 1460 label = label_pton(&mpinfo->extra->label[0]);
9913029c 1461
68a02e06
MS		 1462 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL);
1463
2ad4f093
RW		 1464 api_nh->label_num = 1;
1465 api_nh->labels[0] = label;
d62a17ae 1466 }
a2299aba
AD		 1467
1468 if (is_evpn
1469 && mpinfo->attr->evpn_overlay.type
1470 != OVERLAY_INDEX_GATEWAY_IP)
1471 memcpy(&api_nh->rmac, &(mpinfo->attr->rmac),
1472 sizeof(struct ethaddr));
1473
f7e1c681 1474 api_nh->weight = nh_weight;
4e30bc2b 1475
16f3db2d 1476 if (mpinfo->extra && !sid_zero(&mpinfo->extra->sid[0].sid)
53a4de82 1477 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
16f3db2d 1478 memcpy(&api_nh->seg6_segs, &mpinfo->extra->sid[0].sid,
53a4de82 1479 sizeof(api_nh->seg6_segs));
09e06fcf
RS		 1480
1481 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6);
53a4de82
HS		 1482 }
1483
2ad4f093
RW		 1484 valid_nh_count++;
1485 }
d62a17ae 1486
6348981a
AK		 1487 is_add = (valid_nh_count || nhg_id) ? true : false;
1488
ec0acb80 1489 if (is_add && CHECK_FLAG(bm->flags, BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA)) {
94effaf0 1490 struct bgp_zebra_opaque bzo = {};
1d7260a1
DA		 1491 const char *reason =
1492 bgp_path_selection_reason2str(dest->reason);
94effaf0
DA		 1493
1494 strlcpy(bzo.aspath, info->attr->aspath->str,
1495 sizeof(bzo.aspath));
1496
1497 if (info->attr->flag & ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES))
1498 strlcpy(bzo.community, info->attr->community->str,
1499 sizeof(bzo.community));
1500
1501 if (info->attr->flag
1502 & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES))
1503 strlcpy(bzo.lcommunity, info->attr->lcommunity->str,
1504 sizeof(bzo.lcommunity));
e46723a5 1505
1d7260a1
DA		 1506 strlcpy(bzo.selection_reason, reason,
1507 sizeof(bzo.selection_reason));
1508
e46723a5 1509 SET_FLAG(api.message, ZAPI_MESSAGE_OPAQUE);
94effaf0
DA		 1510 api.opaque.length = MIN(sizeof(struct bgp_zebra_opaque),
1511 ZAPI_MESSAGE_OPAQUE_LENGTH);
1512 memcpy(api.opaque.data, &bzo, api.opaque.length);
e46723a5
DS		 1513 }
1514
1a9cb083
JM		 1515 if (allow_recursion)
1516 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
1517
5cc347c4
DS		 1518 /*
1519 * When we create an aggregate route we must also
1520 * install a Null0 route in the RIB, so overwrite
1521 * what was written into api with a blackhole route
1522 */
1523 if (info->sub_type == BGP_ROUTE_AGGREGATE)
1524 zapi_route_set_blackhole(&api, BLACKHOLE_NULL);
1525 else
2ad4f093 1526 api.nexthop_num = valid_nh_count;
d62a17ae 1527
2ad4f093
RW		 1528 SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
1529 api.metric = metric;
d62a17ae 1530
2ad4f093
RW		 1531 if (tag) {
1532 SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
1533 api.tag = tag;
1534 }
d62a17ae 1535
2ad4f093
RW		 1536 distance = bgp_distance_apply(p, info, afi, safi, bgp);
1537 if (distance) {
1538 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
1539 api.distance = distance;
1540 }
d62a17ae 1541
2ad4f093 1542 if (bgp_debug_zebra(p)) {
2ad4f093 1543 char nh_buf[INET6_ADDRSTRLEN];
d8744f72
CS		 1544 char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'};
1545 char buf1[ETHER_ADDR_STRLEN];
2ad4f093 1546 char label_buf[20];
53a4de82
HS		 1547 char sid_buf[20];
1548 char segs_buf[256];
2ad4f093
RW		 1549 int i;
1550
2dbe669b
DA		 1551 zlog_debug(
1552 "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI
6348981a 1553 " count %d nhg %d",
2dbe669b 1554 valid_nh_count ? "add" : "delete", bgp->vrf_id,
6348981a
AK		 1555 &api.prefix, api.metric, api.tag, api.nexthop_num,
1556 nhg_id);
2ad4f093
RW		 1557 for (i = 0; i < api.nexthop_num; i++) {
1558 api_nh = &api.nexthops[i];
1559
1ee069db
CS		 1560 switch (api_nh->type) {
1561 case NEXTHOP_TYPE_IFINDEX:
77e62f2b 1562 nh_buf[0] = '\0';
1ee069db
CS		 1563 break;
1564 case NEXTHOP_TYPE_IPV4:
1565 case NEXTHOP_TYPE_IPV4_IFINDEX:
1566 nh_family = AF_INET;
77e62f2b 1567 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1568 sizeof(nh_buf));
1ee069db
CS		 1569 break;
1570 case NEXTHOP_TYPE_IPV6:
1571 case NEXTHOP_TYPE_IPV6_IFINDEX:
1572 nh_family = AF_INET6;
1573 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1574 sizeof(nh_buf));
1575 break;
1576 case NEXTHOP_TYPE_BLACKHOLE:
1577 strlcpy(nh_buf, "blackhole", sizeof(nh_buf));
1578 break;
1579 default:
1580 /* Note: add new nexthop case */
1581 assert(0);
1582 break;
77e62f2b 1583 }
2ad4f093
RW		 1584
1585 label_buf[0] = '\0';
d8744f72 1586 eth_buf[0] = '\0';
bbf32574 1587 segs_buf[0] = '\0';
cd18af00 1588 if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL)
a4d82a8a 1589 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))
a7799788
CS		 1590 snprintf(label_buf, sizeof(label_buf),
1591 "label %u", api_nh->labels[0]);
09e06fcf 1592 if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6)
53a4de82
HS		 1593 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
1594 inet_ntop(AF_INET6, &api_nh->seg6_segs,
1595 sid_buf, sizeof(sid_buf));
1596 snprintf(segs_buf, sizeof(segs_buf), "segs %s",
1597 sid_buf);
1598 }
d8744f72
CS		 1599 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)
1600 && !is_zero_mac(&api_nh->rmac))
a7799788
CS		 1601 snprintf(eth_buf, sizeof(eth_buf), " RMAC %s",
1602 prefix_mac2str(&api_nh->rmac,
1603 buf1, sizeof(buf1)));
53a4de82 1604 zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s %s",
77e62f2b 1605 i + 1, nh_buf, api_nh->ifindex,
4e30bc2b 1606 api_nh->vrf_id, api_nh->weight,
53a4de82 1607 label_buf, segs_buf, eth_buf);
d62a17ae 1608 }
2ad4f093 1609
960035b2
PZ		 1610 int recursion_flag = 0;
1611
1612 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION))
1613 recursion_flag = 1;
1614
70492dea
DS		 1615 zlog_debug("%s: %pFX: announcing to zebra (recursion %sset)",
1616 __func__, p, (recursion_flag ? "" : "NOT "));
960035b2 1617 }
6348981a 1618 zclient_route_send(is_add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE,
2ad4f093 1619 zclient, &api);
718e3744 1620}
1621
73ac8160 1622/* Announce all routes of a table to zebra */
d62a17ae 1623void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi)
73ac8160 1624{
9bcb3eef 1625 struct bgp_dest *dest;
d62a17ae 1626 struct bgp_table *table;
40381db7 1627 struct bgp_path_info *pi;
d62a17ae 1628
1629 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1630 * know of this instance.
1631 */
1632 if (!bgp_install_info_to_zebra(bgp))
1633 return;
1634
1635 table = bgp->rib[afi][safi];
1636 if (!table)
1637 return;
1638
9bcb3eef
DS		 1639 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1640 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
40381db7 1641 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
ddb5b488 1642
40381db7
DS		 1643 (pi->type == ZEBRA_ROUTE_BGP
1644 && (pi->sub_type == BGP_ROUTE_NORMAL
1645 || pi->sub_type == BGP_ROUTE_IMPORTED)))
ddb5b488 1646
9bcb3eef
DS		 1647 bgp_zebra_announce(dest,
1648 bgp_dest_get_prefix(dest),
b54892e0 1649 pi, bgp, afi, safi);
73ac8160
DS		 1650}
1651
c163f297
DS		 1652/* Announce routes of any bgp subtype of a table to zebra */
1653void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi,
1654 safi_t safi)
1655{
1656 struct bgp_dest *dest;
1657 struct bgp_table *table;
1658 struct bgp_path_info *pi;
1659
1660 if (!bgp_install_info_to_zebra(bgp))
1661 return;
1662
1663 table = bgp->rib[afi][safi];
1664 if (!table)
1665 return;
1666
1667 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1668 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
1669 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
1670 pi->type == ZEBRA_ROUTE_BGP)
1671 bgp_zebra_announce(dest,
1672 bgp_dest_get_prefix(dest),
1673 pi, bgp, afi, safi);
1674}
1675
5a1ae2c2 1676void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info,
568e10ca 1677 struct bgp *bgp, safi_t safi)
718e3744 1678{
2ad4f093 1679 struct zapi_route api;
f7df1907 1680 struct peer *peer;
ddb5b488 1681
d62a17ae 1682 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1683 * know of this instance.
1684 */
568e10ca 1685 if (!bgp_install_info_to_zebra(bgp))
d62a17ae 1686 return;
1687
f7df1907
PG		 1688 if (safi == SAFI_FLOWSPEC) {
1689 peer = info->peer;
d90b788e
A		 1690 bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false);
1691 return;
f7df1907 1692 }
529efa23 1693
2ad4f093 1694 memset(&api, 0, sizeof(api));
568e10ca 1695 api.vrf_id = bgp->vrf_id;
2ad4f093
RW		 1696 api.type = ZEBRA_ROUTE_BGP;
1697 api.safi = safi;
1698 api.prefix = *p;
d62a17ae 1699
1276ce38
PG		 1700 if (info->attr->rmap_table_id) {
1701 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1702 api.tableid = info->attr->rmap_table_id;
1703 }
1704
88493076 1705 /* If the route's source is EVPN, flag as such. */
1706 if (is_route_parent_evpn(info))
90264d64 1707 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
01740ff4 1708
2dbe669b
DA		 1709 if (bgp_debug_zebra(p))
1710 zlog_debug("Tx route delete VRF %u %pFX", bgp->vrf_id,
1711 &api.prefix);
d62a17ae 1712
2ad4f093 1713 zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
718e3744 1714}
56c1f7d8 1715
c163f297
DS		 1716/* Withdraw all entries in a BGP instances RIB table from Zebra */
1717void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi)
1718{
1719 struct bgp_dest *dest;
1720 struct bgp_table *table;
1721 struct bgp_path_info *pi;
1722
1723 if (!bgp_install_info_to_zebra(bgp))
1724 return;
1725
1726 table = bgp->rib[afi][safi];
1727 if (!table)
1728 return;
1729
1730 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) {
1731 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
1732 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)
1733 && (pi->type == ZEBRA_ROUTE_BGP))
1734 bgp_zebra_withdraw(bgp_dest_get_prefix(dest),
1735 pi, bgp, safi);
1736 }
1737 }
1738}
1739
d7c0a89a
QY		 1740struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type,
1741 unsigned short instance)
7c8ff89e 1742{
d62a17ae 1743 struct list *red_list;
1744 struct listnode *node;
1745 struct bgp_redist *red;
7c8ff89e 1746
d62a17ae 1747 red_list = bgp->redist[afi][type];
1748 if (!red_list)
1749 return (NULL);
7c8ff89e 1750
d62a17ae 1751 for (ALL_LIST_ELEMENTS_RO(red_list, node, red))
1752 if (red->instance == instance)
1753 return red;
7c8ff89e 1754
d62a17ae 1755 return NULL;
7c8ff89e
DS		 1756}
1757
d7c0a89a
QY		 1758struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type,
1759 unsigned short instance)
7c8ff89e 1760{
d62a17ae 1761 struct list *red_list;
1762 struct bgp_redist *red;
7c8ff89e 1763
d62a17ae 1764 red = bgp_redist_lookup(bgp, afi, type, instance);
1765 if (red)
1766 return red;
7c8ff89e 1767
d62a17ae 1768 if (!bgp->redist[afi][type])
1769 bgp->redist[afi][type] = list_new();
7c8ff89e 1770
d62a17ae 1771 red_list = bgp->redist[afi][type];
9f5dc319 1772 red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist));
d62a17ae 1773 red->instance = instance;
7c8ff89e 1774
d62a17ae 1775 listnode_add(red_list, red);
7c8ff89e 1776
d62a17ae 1777 return red;
7c8ff89e
DS		 1778}
1779
d7c0a89a
QY		 1780static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type,
1781 unsigned short instance)
7c8ff89e 1782{
d62a17ae 1783 struct bgp_redist *red;
1784
1785 red = bgp_redist_lookup(bgp, afi, type, instance);
1786
1787 if (red) {
1788 listnode_delete(bgp->redist[afi][type], red);
1789 XFREE(MTYPE_BGP_REDIST, red);
acdf5e25 1790 if (!bgp->redist[afi][type]->count)
6a154c88 1791 list_delete(&bgp->redist[afi][type]);
d62a17ae 1792 }
7c8ff89e 1793}
6b0655a2 1794
718e3744 1795/* Other routes redistribution into BGP. */
d7c0a89a 1796int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type,
e923dd62 1797 unsigned short instance, bool changed)
718e3744 1798{
e923dd62 1799 /* If redistribute options are changed call
1800 * bgp_redistribute_unreg() to reset the option and withdraw
1801 * the routes
1802 */
1803 if (changed)
1804 bgp_redistribute_unreg(bgp, afi, type, instance);
718e3744 1805
d62a17ae 1806 /* Return if already redistribute flag is set. */
1807 if (instance) {
1808 if (redist_check_instance(&zclient->mi_redist[afi][type],
1809 instance))
1810 return CMD_WARNING;
718e3744 1811
d62a17ae 1812 redist_add_instance(&zclient->mi_redist[afi][type], instance);
1813 } else {
d9083050
IR		 1814 if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1815 return CMD_WARNING;
1816
49e5a4a0 1817#ifdef ENABLE_BGP_VNC
f920dd6d 1818 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
d62a17ae 1819 vnc_export_bgp_enable(
1820 bgp, afi); /* only enables if mode bits cfg'd */
1821 }
65efcfce
LB		 1822#endif
1823
d62a17ae 1824 vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id);
1825 }
718e3744 1826
ea12cf11
DS		 1827 /*
1828 * Don't try to register if we're not connected to Zebra or Zebra
1829 * doesn't know of this instance.
1830 *
1831 * When we come up later well resend if needed.
d62a17ae 1832 */
1833 if (!bgp_install_info_to_zebra(bgp))
ea12cf11 1834 return CMD_SUCCESS;
a39275d7 1835
d62a17ae 1836 if (BGP_DEBUG(zebra, ZEBRA))
1837 zlog_debug("Tx redistribute add VRF %u afi %d %s %d",
1838 bgp->vrf_id, afi, zebra_route_string(type),
1839 instance);
518f0eb1 1840
d62a17ae 1841 /* Send distribute add message to zebra. */
1842 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1843 instance, bgp->vrf_id);
718e3744 1844
d62a17ae 1845 return CMD_SUCCESS;
718e3744 1846}
1847
d62a17ae 1848int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1849 unsigned short instance)
518f0eb1 1850{
d62a17ae 1851 /* Don't try to send if we're not connected to Zebra or Zebra doesn't
1852 * know of this instance.
1853 */
1854 if (!bgp_install_info_to_zebra(bgp))
1855 return -1;
1856
1857 if (BGP_DEBUG(zebra, ZEBRA))
1858 zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d",
1859 bgp->vrf_id, afi, zebra_route_string(type),
1860 instance);
1861
1862 /* Send distribute add message to zebra. */
1863 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type,
1864 instance, bgp->vrf_id);
1865 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1866 instance, bgp->vrf_id);
1867
1868 return 0;
518f0eb1
DS		 1869}
1870
718e3744 1871/* Redistribute with route-map specification. */
3dc339cd
DA		 1872bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name,
1873 struct route_map *route_map)
718e3744 1874{
d62a17ae 1875 if (red->rmap.name && (strcmp(red->rmap.name, name) == 0))
3dc339cd 1876 return false;
718e3744 1877
0a22ddfb 1878 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1879 /* Decrement the count for existing routemap and
1880 * increment the count for new route map.
1881 */
1882 route_map_counter_decrement(red->rmap.map);
d62a17ae 1883 red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name);
1de27621 1884 red->rmap.map = route_map;
b4897fa5 1885 route_map_counter_increment(red->rmap.map);
718e3744 1886
3dc339cd 1887 return true;
718e3744 1888}
1889
1890/* Redistribute with metric specification. */
3dc339cd
DA		 1891bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red,
1892 afi_t afi, int type, uint32_t metric)
718e3744 1893{
9bcb3eef 1894 struct bgp_dest *dest;
40381db7 1895 struct bgp_path_info *pi;
d62a17ae 1896
1897 if (red->redist_metric_flag && red->redist_metric == metric)
3dc339cd 1898 return false;
d62a17ae 1899
1900 red->redist_metric_flag = 1;
1901 red->redist_metric = metric;
1902
9bcb3eef
DS		 1903 for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest;
1904 dest = bgp_route_next(dest)) {
1905 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
40381db7
DS		 1906 if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE
1907 && pi->type == type
1908 && pi->instance == red->instance) {
d62a17ae 1909 struct attr *old_attr;
1910 struct attr new_attr;
1911
6f4f49b2 1912 new_attr = *pi->attr;
d62a17ae 1913 new_attr.med = red->redist_metric;
40381db7
DS		 1914 old_attr = pi->attr;
1915 pi->attr = bgp_attr_intern(&new_attr);
d62a17ae 1916 bgp_attr_unintern(&old_attr);
1917
9bcb3eef 1918 bgp_path_info_set_flag(dest, pi,
18ee8310 1919 BGP_PATH_ATTR_CHANGED);
9bcb3eef 1920 bgp_process(bgp, dest, afi, SAFI_UNICAST);
d62a17ae 1921 }
1922 }
1923 }
1924
3dc339cd 1925 return true;
718e3744 1926}
1927
1928/* Unset redistribution. */
d62a17ae 1929int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1930 unsigned short instance)
718e3744 1931{
d62a17ae 1932 struct bgp_redist *red;
1933
1934 red = bgp_redist_lookup(bgp, afi, type, instance);
1935 if (!red)
1936 return CMD_SUCCESS;
1937
1938 /* Return if zebra connection is disabled. */
1939 if (instance) {
1940 if (!redist_check_instance(&zclient->mi_redist[afi][type],
1941 instance))
1942 return CMD_WARNING;
1943 redist_del_instance(&zclient->mi_redist[afi][type], instance);
1944 } else {
1945 if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1946 return CMD_WARNING;
1947 vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id);
1948 }
718e3744 1949
d62a17ae 1950 if (bgp_install_info_to_zebra(bgp)) {
1951 /* Send distribute delete message to zebra. */
1952 if (BGP_DEBUG(zebra, ZEBRA))
1953 zlog_debug("Tx redistribute del VRF %u afi %d %s %d",
1954 bgp->vrf_id, afi, zebra_route_string(type),
1955 instance);
1956 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi,
1957 type, instance, bgp->vrf_id);
1958 }
1959
1960 /* Withdraw redistributed routes from current BGP's routing table. */
1961 bgp_redistribute_withdraw(bgp, afi, type, instance);
1962
1963 return CMD_SUCCESS;
718e3744 1964}
1965
6aeb9e78 1966/* Unset redistribution. */
d62a17ae 1967int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1968 unsigned short instance)
6aeb9e78 1969{
d62a17ae 1970 struct bgp_redist *red;
6aeb9e78 1971
ddb5b488
PZ		 1972/*
1973 * vnc and vpn->vrf checks must be before red check because
1974 * they operate within bgpd irrespective of zebra connection
1975 * status. red lookup fails if there is no zebra connection.
1976 */
49e5a4a0 1977#ifdef ENABLE_BGP_VNC
f920dd6d 1978 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
ddb5b488
PZ		 1979 vnc_export_bgp_disable(bgp, afi);
1980 }
1981#endif
ddb5b488 1982
d62a17ae 1983 red = bgp_redist_lookup(bgp, afi, type, instance);
1984 if (!red)
1985 return CMD_SUCCESS;
6aeb9e78 1986
d62a17ae 1987 bgp_redistribute_unreg(bgp, afi, type, instance);
6aeb9e78 1988
d62a17ae 1989 /* Unset route-map. */
0a22ddfb 1990 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1991 route_map_counter_decrement(red->rmap.map);
d62a17ae 1992 red->rmap.map = NULL;
6aeb9e78 1993
d62a17ae 1994 /* Unset metric. */
1995 red->redist_metric_flag = 0;
1996 red->redist_metric = 0;
6aeb9e78 1997
d62a17ae 1998 bgp_redist_del(bgp, afi, type, instance);
6aeb9e78 1999
d62a17ae 2000 return CMD_SUCCESS;
6aeb9e78
DS		 2001}
2002
fc2408ec
DS		 2003void bgp_redistribute_redo(struct bgp *bgp)
2004{
2005 afi_t afi;
2006 int i;
2007 struct list *red_list;
2008 struct listnode *node;
2009 struct bgp_redist *red;
2010
2011 for (afi = AFI_IP; afi < AFI_MAX; afi++) {
2012 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
2013
2014 red_list = bgp->redist[afi][i];
2015 if (!red_list)
2016 continue;
2017
2018 for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) {
2019 bgp_redistribute_resend(bgp, afi, i,
2020 red->instance);
2021 }
2022 }
2023 }
2024}
2025
d62a17ae 2026void bgp_zclient_reset(void)
718e3744 2027{
d62a17ae 2028 zclient_reset(zclient);
718e3744 2029}
2030
ad4cbda1 2031/* Register this instance with Zebra. Invoked upon connect (for
2032 * default instance) and when other VRFs are learnt (or created and
2033 * already learnt).
2034 */
d62a17ae 2035void bgp_zebra_instance_register(struct bgp *bgp)
ad4cbda1 2036{
d62a17ae 2037 /* Don't try to register if we're not connected to Zebra */
2038 if (!zclient || zclient->sock < 0)
2039 return;
ad4cbda1 2040
d62a17ae 2041 if (BGP_DEBUG(zebra, ZEBRA))
2042 zlog_debug("Registering VRF %u", bgp->vrf_id);
ad4cbda1 2043
d62a17ae 2044 /* Register for router-id, interfaces, redistributed routes. */
2045 zclient_send_reg_requests(zclient, bgp->vrf_id);
7724c0a1 2046
e2f3a930
T		 2047 /* For EVPN instance, register to learn about VNIs, if appropriate. */
2048 if (bgp->advertise_all_vni)
d62a17ae 2049 bgp_zebra_advertise_all_vni(bgp, 1);
1ee0a2df
DS		 2050
2051 bgp_nht_register_nexthops(bgp);
ad4cbda1 2052}
2053
2054/* Deregister this instance with Zebra. Invoked upon the instance
2055 * being deleted (default or VRF) and it is already registered.
2056 */
d62a17ae 2057void bgp_zebra_instance_deregister(struct bgp *bgp)
ad4cbda1 2058{
d62a17ae 2059 /* Don't try to deregister if we're not connected to Zebra */
2060 if (zclient->sock < 0)
2061 return;
ad4cbda1 2062
d62a17ae 2063 if (BGP_DEBUG(zebra, ZEBRA))
2064 zlog_debug("Deregistering VRF %u", bgp->vrf_id);
ad4cbda1 2065
e2f3a930
T		 2066 /* For EVPN instance, unregister learning about VNIs, if appropriate. */
2067 if (bgp->advertise_all_vni)
d62a17ae 2068 bgp_zebra_advertise_all_vni(bgp, 0);
7724c0a1 2069
d62a17ae 2070 /* Deregister for router-id, interfaces, redistributed routes. */
2071 zclient_send_dereg_requests(zclient, bgp->vrf_id);
ad4cbda1 2072}
2073
d62a17ae 2074void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 2075{
bbad0276 2076 uint32_t ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL;
5c81b96a 2077
d62a17ae 2078 /* Don't try to initiate if we're not connected to Zebra */
2079 if (zclient->sock < 0)
2080 return;
4a04e5f7 2081
d62a17ae 2082 if (BGP_DEBUG(zebra, ZEBRA))
2083 zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id,
2084 peer->host);
4a04e5f7 2085
b3a3290e
DS		 2086 /*
2087 * If unnumbered peer (peer->ifp) call thru zapi to start RAs.
2088 * If we don't have an ifp pointer, call function to find the
2089 * ifps for a numbered enhe peer to turn RAs on.
2090 */
2091 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
2092 peer->ifp, 1, ra_interval)
2093 : bgp_nht_reg_enhe_cap_intfs(peer);
4a04e5f7 2094}
2095
d62a17ae 2096void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 2097{
d62a17ae 2098 /* Don't try to terminate if we're not connected to Zebra */
2099 if (zclient->sock < 0)
2100 return;
4a04e5f7 2101
d62a17ae 2102 if (BGP_DEBUG(zebra, ZEBRA))
2103 zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id,
2104 peer->host);
4a04e5f7 2105
b3a3290e
DS		 2106 /*
2107 * If unnumbered peer (peer->ifp) call thru zapi to stop RAs.
2108 * If we don't have an ifp pointer, call function to find the
2109 * ifps for a numbered enhe peer to turn RAs off.
2110 */
2111 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
2112 peer->ifp, 0, 0)
2113 : bgp_nht_dereg_enhe_cap_intfs(peer);
4a04e5f7 2114}
2115
31310b25
MK		 2116int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni)
2117{
2118 struct stream *s = NULL;
2119
2120 /* Check socket. */
2121 if (!zclient || zclient->sock < 0)
2122 return 0;
2123
2124 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2125 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2126 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2127 zlog_debug(
2128 "%s: No zebra instance to talk to, cannot advertise subnet",
2129 __func__);
31310b25 2130 return 0;
bb4ef1ae 2131 }
31310b25
MK		 2132
2133 s = zclient->obuf;
2134 stream_reset(s);
2135
2136 zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id);
2137 stream_putc(s, advertise);
2138 stream_put3(s, vni);
2139 stream_putw_at(s, 0, stream_get_endp(s));
2140
2141 return zclient_send_message(zclient);
2142}
2143
a8016157
CS		 2144int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni)
2145{
2146 struct stream *s = NULL;
2147
2148 /* Check socket. */
2149 if (!zclient || zclient->sock < 0)
2150 return 0;
2151
2152 /* Don't try to register if Zebra doesn't know of this instance. */
2153 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2154 return 0;
2155
2156 s = zclient->obuf;
2157 stream_reset(s);
2158
2159 zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id);
2160 stream_putc(s, advertise);
2161 stream_putl(s, vni);
2162 stream_putw_at(s, 0, stream_get_endp(s));
2163
2164 return zclient_send_message(zclient);
2165}
2166
1a98c087
MK		 2167int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni)
2168{
2169 struct stream *s = NULL;
2170
2171 /* Check socket. */
2172 if (!zclient || zclient->sock < 0)
2173 return 0;
2174
2175 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2176 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2177 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2178 zlog_debug(
2179 "%s: No zebra instance to talk to, not installing gw_macip",
2180 __func__);
1a98c087 2181 return 0;
bb4ef1ae 2182 }
1a98c087
MK		 2183
2184 s = zclient->obuf;
2185 stream_reset(s);
2186
2187 zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id);
2188 stream_putc(s, advertise);
cc6d5476 2189 stream_putl(s, vni);
1a98c087
MK		 2190 stream_putw_at(s, 0, stream_get_endp(s));
2191
2192 return zclient_send_message(zclient);
2193}
2194
fd069644
DS		 2195int bgp_zebra_vxlan_flood_control(struct bgp *bgp,
2196 enum vxlan_flood_control flood_ctrl)
2197{
2198 struct stream *s;
2199
2200 /* Check socket. */
2201 if (!zclient || zclient->sock < 0)
2202 return 0;
2203
2204 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2205 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2206 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2207 zlog_debug(
2208 "%s: No zebra instance to talk to, not installing all vni",
2209 __func__);
fd069644 2210 return 0;
bb4ef1ae 2211 }
fd069644
DS		 2212
2213 s = zclient->obuf;
2214 stream_reset(s);
2215
2216 zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id);
2217 stream_putc(s, flood_ctrl);
2218 stream_putw_at(s, 0, stream_get_endp(s));
2219
2220 return zclient_send_message(zclient);
2221}
2222
d62a17ae 2223int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise)
7724c0a1 2224{
d62a17ae 2225 struct stream *s;
7724c0a1 2226
d62a17ae 2227 /* Check socket. */
2228 if (!zclient || zclient->sock < 0)
2229 return 0;
7724c0a1 2230
d62a17ae 2231 /* Don't try to register if Zebra doesn't know of this instance. */
2232 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2233 return 0;
7724c0a1 2234
d62a17ae 2235 s = zclient->obuf;
2236 stream_reset(s);
7724c0a1 2237
d62a17ae 2238 zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id);
2239 stream_putc(s, advertise);
fbac9605
DS		 2240 /* Also inform current BUM handling setting. This is really
2241 * relevant only when 'advertise' is set.
2242 */
fd069644 2243 stream_putc(s, bgp->vxlan_flood_ctrl);
d62a17ae 2244 stream_putw_at(s, 0, stream_get_endp(s));
7724c0a1 2245
d62a17ae 2246 return zclient_send_message(zclient);
7724c0a1 2247}
2248
0b9d9cd0
CS		 2249int bgp_zebra_dup_addr_detection(struct bgp *bgp)
2250{
2251 struct stream *s;
2252
2253 /* Check socket. */
2254 if (!zclient || zclient->sock < 0)
2255 return 0;
2256
2257 /* Don't try to register if Zebra doesn't know of this instance. */
2258 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2259 return 0;
2260
2261 if (BGP_DEBUG(zebra, ZEBRA))
2262 zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u",
2263 bgp->evpn_info->dup_addr_detect ?
2264 "enable" : "disable",
2265 bgp->evpn_info->dad_max_moves,
2266 bgp->evpn_info->dad_time,
2267 bgp->evpn_info->dad_freeze ?
2268 "enable" : "disable",
2269 bgp->evpn_info->dad_freeze_time);
2270
2271 s = zclient->obuf;
2272 stream_reset(s);
2273 zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION,
2274 bgp->vrf_id);
2275 stream_putl(s, bgp->evpn_info->dup_addr_detect);
2276 stream_putl(s, bgp->evpn_info->dad_time);
2277 stream_putl(s, bgp->evpn_info->dad_max_moves);
2278 stream_putl(s, bgp->evpn_info->dad_freeze);
2279 stream_putl(s, bgp->evpn_info->dad_freeze_time);
2280 stream_putw_at(s, 0, stream_get_endp(s));
2281
2282 return zclient_send_message(zclient);
2283}
2284
121f9dee 2285static int rule_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2286{
2287 uint32_t seqno, priority, unique;
2288 enum zapi_rule_notify_owner note;
2289 struct bgp_pbr_action *bgp_pbra;
ffee150e 2290 struct bgp_pbr_rule *bgp_pbr = NULL;
58a1d249 2291 char ifname[INTERFACE_NAMSIZ + 1];
30d50e6d
PG		 2292
2293 if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique,
58a1d249 2294 ifname, &note))
30d50e6d
PG		 2295 return -1;
2296
70eabd12 2297 bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique);
30d50e6d 2298 if (!bgp_pbra) {
ffee150e
PG		 2299 /* look in bgp pbr rule */
2300 bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique);
2301 if (!bgp_pbr && note != ZAPI_RULE_REMOVED) {
2302 if (BGP_DEBUG(zebra, ZEBRA))
2303 zlog_debug("%s: Fail to look BGP rule (%u)",
15569c58 2304 __func__, unique);
ffee150e
PG		 2305 return 0;
2306 }
30d50e6d
PG		 2307 }
2308
2309 switch (note) {
2310 case ZAPI_RULE_FAIL_INSTALL:
2311 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2312 zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__);
ffee150e
PG		 2313 if (bgp_pbra) {
2314 bgp_pbra->installed = false;
2315 bgp_pbra->install_in_progress = false;
2316 } else {
2317 bgp_pbr->installed = false;
2318 bgp_pbr->install_in_progress = false;
2319 }
30d50e6d
PG		 2320 break;
2321 case ZAPI_RULE_INSTALLED:
ffee150e
PG		 2322 if (bgp_pbra) {
2323 bgp_pbra->installed = true;
2324 bgp_pbra->install_in_progress = false;
2325 } else {
ce3c0614
PG		 2326 struct bgp_path_info *path;
2327 struct bgp_path_info_extra *extra;
2328
ffee150e
PG		 2329 bgp_pbr->installed = true;
2330 bgp_pbr->install_in_progress = false;
2331 bgp_pbr->action->refcnt++;
ce3c0614
PG		 2332 /* link bgp_info to bgp_pbr */
2333 path = (struct bgp_path_info *)bgp_pbr->path;
2334 extra = bgp_path_info_extra_get(path);
f5925234
PG		 2335 listnode_add_force(&extra->bgp_fs_iprule,
2336 bgp_pbr);
ffee150e 2337 }
30d50e6d 2338 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2339 zlog_debug("%s: Received RULE_INSTALLED", __func__);
30d50e6d 2340 break;
f18a08f5 2341 case ZAPI_RULE_FAIL_REMOVE:
30d50e6d
PG		 2342 case ZAPI_RULE_REMOVED:
2343 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2344 zlog_debug("%s: Received RULE REMOVED", __func__);
30d50e6d
PG		 2345 break;
2346 }
2347
2348 return 0;
2349}
2350
121f9dee 2351static int ipset_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2352{
2353 uint32_t unique;
2354 enum zapi_ipset_notify_owner note;
2355 struct bgp_pbr_match *bgp_pbim;
2356
2357 if (!zapi_ipset_notify_decode(zclient->ibuf,
2358 &unique,
2359 &note))
2360 return -1;
2361
2362 bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique);
2363 if (!bgp_pbim) {
2364 if (BGP_DEBUG(zebra, ZEBRA))
88055124 2365 zlog_debug("%s: Fail to look BGP match ( %u, ID %u)",
15569c58 2366 __func__, note, unique);
30d50e6d
PG		 2367 return 0;
2368 }
2369
2370 switch (note) {
2371 case ZAPI_IPSET_FAIL_INSTALL:
2372 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2373 zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__);
30d50e6d
PG		 2374 bgp_pbim->installed = false;
2375 bgp_pbim->install_in_progress = false;
2376 break;
2377 case ZAPI_IPSET_INSTALLED:
2378 bgp_pbim->installed = true;
2379 bgp_pbim->install_in_progress = false;
2380 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2381 zlog_debug("%s: Received IPSET_INSTALLED", __func__);
30d50e6d 2382 break;
f18a08f5 2383 case ZAPI_IPSET_FAIL_REMOVE:
30d50e6d
PG		 2384 case ZAPI_IPSET_REMOVED:
2385 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2386 zlog_debug("%s: Received IPSET REMOVED", __func__);
30d50e6d
PG		 2387 break;
2388 }
2389
2390 return 0;
2391}
2392
121f9dee 2393static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2394{
2395 uint32_t unique;
2396 char ipset_name[ZEBRA_IPSET_NAME_SIZE];
2397 enum zapi_ipset_entry_notify_owner note;
2398 struct bgp_pbr_match_entry *bgp_pbime;
2399
2400 if (!zapi_ipset_entry_notify_decode(
2401 zclient->ibuf,
2402 &unique,
2403 ipset_name,
2404 &note))
2405 return -1;
2406 bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id,
2407 ipset_name,
2408 unique);
2409 if (!bgp_pbime) {
2410 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2411 zlog_debug(
2412 "%s: Fail to look BGP match entry (%u, ID %u)",
2413 __func__, note, unique);
30d50e6d
PG		 2414 return 0;
2415 }
2416
2417 switch (note) {
2418 case ZAPI_IPSET_ENTRY_FAIL_INSTALL:
2419 if (BGP_DEBUG(zebra, ZEBRA))
2420 zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL",
15569c58 2421 __func__);
30d50e6d
PG		 2422 bgp_pbime->installed = false;
2423 bgp_pbime->install_in_progress = false;
2424 break;
2425 case ZAPI_IPSET_ENTRY_INSTALLED:
b588b642 2426 {
9b6d8fcf 2427 struct bgp_path_info *path;
4b7e6066
DS		 2428 struct bgp_path_info_extra *extra;
2429
2430 bgp_pbime->installed = true;
2431 bgp_pbime->install_in_progress = false;
2432 if (BGP_DEBUG(zebra, ZEBRA))
2433 zlog_debug("%s: Received IPSET_ENTRY_INSTALLED",
15569c58 2434 __func__);
9b6d8fcf
DS		 2435 /* link bgp_path_info to bpme */
2436 path = (struct bgp_path_info *)bgp_pbime->path;
2437 extra = bgp_path_info_extra_get(path);
f5925234 2438 listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime);
b588b642 2439 }
30d50e6d 2440 break;
f18a08f5 2441 case ZAPI_IPSET_ENTRY_FAIL_REMOVE:
30d50e6d
PG		 2442 case ZAPI_IPSET_ENTRY_REMOVED:
2443 if (BGP_DEBUG(zebra, ZEBRA))
2444 zlog_debug("%s: Received IPSET_ENTRY_REMOVED",
15569c58 2445 __func__);
30d50e6d
PG		 2446 break;
2447 }
2448 return 0;
2449}
2450
121f9dee 2451static int iptable_notify_owner(ZAPI_CALLBACK_ARGS)
c16a0a62
PG		 2452{
2453 uint32_t unique;
2454 enum zapi_iptable_notify_owner note;
2455 struct bgp_pbr_match *bgpm;
2456
2457 if (!zapi_iptable_notify_decode(
2458 zclient->ibuf,
2459 &unique,
2460 &note))
2461 return -1;
2462 bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique);
2463 if (!bgpm) {
2464 if (BGP_DEBUG(zebra, ZEBRA))
82e194ed 2465 zlog_debug("%s: Fail to look BGP iptable (%u %u)",
15569c58 2466 __func__, note, unique);
c16a0a62
PG		 2467 return 0;
2468 }
2469 switch (note) {
2470 case ZAPI_IPTABLE_FAIL_INSTALL:
2471 if (BGP_DEBUG(zebra, ZEBRA))
2472 zlog_debug("%s: Received IPTABLE_FAIL_INSTALL",
15569c58 2473 __func__);
c16a0a62
PG		 2474 bgpm->installed_in_iptable = false;
2475 bgpm->install_iptable_in_progress = false;
2476 break;
2477 case ZAPI_IPTABLE_INSTALLED:
2478 bgpm->installed_in_iptable = true;
2479 bgpm->install_iptable_in_progress = false;
2480 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2481 zlog_debug("%s: Received IPTABLE_INSTALLED", __func__);
a6b07429 2482 bgpm->action->refcnt++;
c16a0a62 2483 break;
f18a08f5 2484 case ZAPI_IPTABLE_FAIL_REMOVE:
c16a0a62
PG		 2485 case ZAPI_IPTABLE_REMOVED:
2486 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2487 zlog_debug("%s: Received IPTABLE REMOVED", __func__);
c16a0a62
PG		 2488 break;
2489 }
2490 return 0;
2491}
2492
a77e2f4b
S		 2493/* Process route notification messages from RIB */
2494static int bgp_zebra_route_notify_owner(int command, struct zclient *zclient,
2495 zebra_size_t length, vrf_id_t vrf_id)
2496{
2497 struct prefix p;
2498 enum zapi_route_notify_owner note;
2499 uint32_t table_id;
a77e2f4b
S		 2500 afi_t afi;
2501 safi_t safi;
2502 struct bgp_dest *dest;
2503 struct bgp *bgp;
2504 struct bgp_path_info *pi, *new_select;
2505
2506 if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, &note,
2507 &afi, &safi)) {
cc42c4f0 2508 zlog_err("%s : error in msg decode", __func__);
a77e2f4b
S		 2509 return -1;
2510 }
2511
2512 /* Get the bgp instance */
2513 bgp = bgp_lookup_by_vrf_id(vrf_id);
2514 if (!bgp) {
2515 flog_err(EC_BGP_INVALID_BGP_INSTANCE,
cc42c4f0
DS		 2516 "%s : bgp instance not found vrf %d", __func__,
2517 vrf_id);
a77e2f4b
S		 2518 return -1;
2519 }
2520
a77e2f4b
S		 2521 /* Find the bgp route node */
2522 dest = bgp_afi_node_lookup(bgp->rib[afi][safi], afi, safi, &p,
2523 &bgp->vrf_prd);
2524 if (!dest)
2525 return -1;
2526
a77e2f4b
S		 2527 switch (note) {
2528 case ZAPI_ROUTE_INSTALLED:
2529 new_select = NULL;
2530 /* Clear the flags so that route can be processed */
2531 if (CHECK_FLAG(dest->flags,
2532 BGP_NODE_FIB_INSTALL_PENDING)) {
2533 UNSET_FLAG(dest->flags,
2534 BGP_NODE_FIB_INSTALL_PENDING);
2535 SET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED);
2536 if (BGP_DEBUG(zebra, ZEBRA))
1a3519b6 2537 zlog_debug("route %pRN : INSTALLED", dest);
a77e2f4b
S		 2538 /* Find the best route */
2539 for (pi = dest->info; pi; pi = pi->next) {
2540 /* Process aggregate route */
2541 bgp_aggregate_increment(bgp, &p, pi,
2542 afi, safi);
2543 if (CHECK_FLAG(pi->flags,
2544 BGP_PATH_SELECTED))
2545 new_select = pi;
2546 }
2547 /* Advertise the route */
2548 if (new_select)
2549 group_announce_route(bgp, afi, safi,
2550 dest, new_select);
2551 else {
2552 flog_err(EC_BGP_INVALID_ROUTE,
1a3519b6
DS		 2553 "selected route %pRN not found",
2554 dest);
e71ad4b6
DA		 2555
2556 bgp_dest_unlock_node(dest);
a77e2f4b
S		 2557 return -1;
2558 }
2559 }
2560 break;
2561 case ZAPI_ROUTE_REMOVED:
2562 /* Route deleted from dataplane, reset the installed flag
2563 * so that route can be reinstalled when client sends
2564 * route add later
2565 */
2566 UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED);
1a3519b6
DS		 2567 if (BGP_DEBUG(zebra, ZEBRA))
2568 zlog_debug("route %pRN: Removed from Fib", dest);
a77e2f4b
S		 2569 break;
2570 case ZAPI_ROUTE_FAIL_INSTALL:
1a3519b6
DS		 2571 if (BGP_DEBUG(zebra, ZEBRA))
2572 zlog_debug("route: %pRN Failed to Install into Fib",
2573 dest);
a77e2f4b
S		 2574 /* Error will be logged by zebra module */
2575 break;
2576 case ZAPI_ROUTE_BETTER_ADMIN_WON:
1a3519b6
DS		 2577 if (BGP_DEBUG(zebra, ZEBRA))
2578 zlog_debug("route: %pRN removed due to better admin won",
2579 dest);
a77e2f4b
S		 2580 /* No action required */
2581 break;
2582 case ZAPI_ROUTE_REMOVE_FAIL:
1a3519b6
DS		 2583 zlog_warn("%s: Route %pRN failure to remove",
2584 __func__, dest);
a77e2f4b
S		 2585 break;
2586 }
e71ad4b6
DA		 2587
2588 bgp_dest_unlock_node(dest);
a77e2f4b
S		 2589 return 0;
2590}
2591
6cfe5d15
PG		 2592/* this function is used to forge ip rule,
2593 * - either for iptable/ipset using fwmark id
121f9dee 2594 * - or for sample ip rule cmd
6cfe5d15 2595 */
30d50e6d 2596static void bgp_encode_pbr_rule_action(struct stream *s,
6cfe5d15
PG		 2597 struct bgp_pbr_action *pbra,
2598 struct bgp_pbr_rule *pbr)
30d50e6d 2599{
6cfe5d15 2600 struct prefix pfx;
f01e580f 2601 uint8_t fam = AF_INET;
e95666cb 2602 char ifname[INTERFACE_NAMSIZ];
30d50e6d 2603
9f1f03ec 2604 if (pbra->nh.type == NEXTHOP_TYPE_IPV6)
f01e580f 2605 fam = AF_INET6;
30d50e6d 2606 stream_putl(s, 0); /* seqno unused */
8112a7a0
PG		 2607 if (pbr)
2608 stream_putl(s, pbr->priority);
2609 else
2610 stream_putl(s, 0);
2611 /* ruleno unused - priority change
2612 * ruleno permits distinguishing various FS PBR entries
2613 * - FS PBR entries based on ipset/iptables
2614 * - FS PBR entries based on iprule
2615 * the latter may contain default routing information injected by FS
2616 */
6cfe5d15
PG		 2617 if (pbr)
2618 stream_putl(s, pbr->unique);
2619 else
2620 stream_putl(s, pbra->unique);
f56697ef 2621 stream_putc(s, 0); /* ip protocol being used */
6cfe5d15
PG		 2622 if (pbr && pbr->flags & MATCH_IP_SRC_SET)
2623 memcpy(&pfx, &(pbr->src), sizeof(struct prefix));
2624 else {
2625 memset(&pfx, 0, sizeof(pfx));
f01e580f 2626 pfx.family = fam;
6cfe5d15
PG		 2627 }
2628 stream_putc(s, pfx.family);
2629 stream_putc(s, pfx.prefixlen);
2630 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2631
2632 stream_putw(s, 0); /* src port */
2633
6cfe5d15
PG		 2634 if (pbr && pbr->flags & MATCH_IP_DST_SET)
2635 memcpy(&pfx, &(pbr->dst), sizeof(struct prefix));
2636 else {
2637 memset(&pfx, 0, sizeof(pfx));
f01e580f 2638 pfx.family = fam;
6cfe5d15
PG		 2639 }
2640 stream_putc(s, pfx.family);
2641 stream_putc(s, pfx.prefixlen);
2642 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2643
2644 stream_putw(s, 0); /* dst port */
e95666cb 2645 stream_putc(s, 0); /* dsfield */
6cfe5d15
PG		 2646 /* if pbr present, fwmark is not used */
2647 if (pbr)
2648 stream_putl(s, 0);
2649 else
2650 stream_putl(s, pbra->fwmark); /* fwmark */
30d50e6d
PG		 2651
2652 stream_putl(s, pbra->table_id);
2653
e95666cb
DS		 2654 memset(ifname, 0, sizeof(ifname));
2655 stream_put(s, ifname, INTERFACE_NAMSIZ); /* ifname unused */
30d50e6d
PG		 2656}
2657
2658static void bgp_encode_pbr_ipset_match(struct stream *s,
2659 struct bgp_pbr_match *pbim)
2660{
2661 stream_putl(s, pbim->unique);
2662 stream_putl(s, pbim->type);
a60b7031 2663 stream_putc(s, pbim->family);
30d50e6d
PG		 2664 stream_put(s, pbim->ipset_name,
2665 ZEBRA_IPSET_NAME_SIZE);
30d50e6d
PG		 2666}
2667
2668static void bgp_encode_pbr_ipset_entry_match(struct stream *s,
2669 struct bgp_pbr_match_entry *pbime)
2670{
2671 stream_putl(s, pbime->unique);
2672 /* check that back pointer is not null */
2673 stream_put(s, pbime->backpointer->ipset_name,
2674 ZEBRA_IPSET_NAME_SIZE);
2675
2676 stream_putc(s, pbime->src.family);
2677 stream_putc(s, pbime->src.prefixlen);
2678 stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src));
2679
2680 stream_putc(s, pbime->dst.family);
2681 stream_putc(s, pbime->dst.prefixlen);
2682 stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst));
f730e566
PG		 2683
2684 stream_putw(s, pbime->src_port_min);
2685 stream_putw(s, pbime->src_port_max);
2686 stream_putw(s, pbime->dst_port_min);
2687 stream_putw(s, pbime->dst_port_max);
2688 stream_putc(s, pbime->proto);
30d50e6d
PG		 2689}
2690
c16a0a62
PG		 2691static void bgp_encode_pbr_iptable_match(struct stream *s,
2692 struct bgp_pbr_action *bpa,
2693 struct bgp_pbr_match *pbm)
2694{
2695 stream_putl(s, pbm->unique2);
2696
2697 stream_putl(s, pbm->type);
2698
2699 stream_putl(s, pbm->flags);
2700
2701 /* TODO: correlate with what is contained
2702 * into bgp_pbr_action.
2703 * currently only forward supported
2704 */
2705 if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE)
2706 stream_putl(s, ZEBRA_IPTABLES_DROP);
2707 else
2708 stream_putl(s, ZEBRA_IPTABLES_FORWARD);
2709 stream_putl(s, bpa->fwmark);
2710 stream_put(s, pbm->ipset_name,
2711 ZEBRA_IPSET_NAME_SIZE);
a60b7031 2712 stream_putc(s, pbm->family);
83360720
PG		 2713 stream_putw(s, pbm->pkt_len_min);
2714 stream_putw(s, pbm->pkt_len_max);
2da7d62e
PG		 2715 stream_putw(s, pbm->tcp_flags);
2716 stream_putw(s, pbm->tcp_mask_flags);
4977bd6c 2717 stream_putc(s, pbm->dscp_value);
6f5617d8 2718 stream_putc(s, pbm->fragment);
f449d223 2719 stream_putc(s, pbm->protocol);
a60b7031 2720 stream_putw(s, pbm->flow_label);
c16a0a62
PG		 2721}
2722
ad4cbda1 2723/* BGP has established connection with Zebra. */
d62a17ae 2724static void bgp_zebra_connected(struct zclient *zclient)
7076bb2f 2725{
d62a17ae 2726 struct bgp *bgp;
7076bb2f 2727
d62a17ae 2728 zclient_num_connects++; /* increment even if not responding */
afbb1c59 2729
6bfcd0f1
IR		 2730 /* Send the client registration */
2731 bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT);
2732
d62a17ae 2733 /* At this point, we may or may not have BGP instances configured, but
2734 * we're only interested in the default VRF (others wouldn't have learnt
2735 * the VRF from Zebra yet.)
2736 */
2737 bgp = bgp_get_default();
2738 if (!bgp)
2739 return;
ad4cbda1 2740
d62a17ae 2741 bgp_zebra_instance_register(bgp);
ad4cbda1 2742
955bfd98 2743 /* tell label pool that zebra is connected */
e70e9f8e 2744 bgp_lp_event_zebra_up();
955bfd98 2745
d62a17ae 2746 /* TODO - What if we have peers and networks configured, do we have to
2747 * kick-start them?
2748 */
85ef4179 2749 BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer);
7076bb2f
FL		 2750}
2751
c44ab6f1
AK		 2752static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS)
2753{
2754 esi_t esi;
2755 struct bgp *bgp = NULL;
2756 struct stream *s = NULL;
2757 char buf[ESI_STR_LEN];
2758 struct in_addr originator_ip;
2759 uint8_t active;
74be8313 2760 uint8_t bypass;
74e2bd89 2761 uint16_t df_pref;
c44ab6f1
AK		 2762
2763 bgp = bgp_lookup_by_vrf_id(vrf_id);
2764 if (!bgp)
2765 return 0;
2766
2767 s = zclient->ibuf;
2768 stream_get(&esi, s, sizeof(esi_t));
2769 originator_ip.s_addr = stream_get_ipv4(s);
2770 active = stream_getc(s);
74e2bd89 2771 df_pref = stream_getw(s);
74be8313 2772 bypass = stream_getc(s);
c44ab6f1
AK		 2773
2774 if (BGP_DEBUG(zebra, ZEBRA))
74e2bd89 2775 zlog_debug(
74be8313
AK		 2776 "Rx add ESI %s originator-ip %pI4 active %u df_pref %u %s",
2777 esi_to_str(&esi, buf, sizeof(buf)), &originator_ip,
2778 active, df_pref, bypass ? "bypass" : "");
c44ab6f1 2779
a383bfc7
AK		 2780 frrtrace(5, frr_bgp, evpn_mh_local_es_add_zrecv, &esi, originator_ip,
2781 active, bypass, df_pref);
2782
74be8313
AK		 2783 bgp_evpn_local_es_add(bgp, &esi, originator_ip, active, df_pref,
2784 !!bypass);
c44ab6f1
AK		 2785
2786 return 0;
2787}
2788
2789static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS)
50f74cf1 2790{
2791 esi_t esi;
2792 struct bgp *bgp = NULL;
2793 struct stream *s = NULL;
2794 char buf[ESI_STR_LEN];
50f74cf1 2795
2796 memset(&esi, 0, sizeof(esi_t));
c44ab6f1
AK		 2797 bgp = bgp_lookup_by_vrf_id(vrf_id);
2798 if (!bgp)
2799 return 0;
2800
2801 s = zclient->ibuf;
2802 stream_get(&esi, s, sizeof(esi_t));
2803
2804 if (BGP_DEBUG(zebra, ZEBRA))
2805 zlog_debug("Rx del ESI %s",
2806 esi_to_str(&esi, buf, sizeof(buf)));
2807
a383bfc7
AK		 2808 frrtrace(1, frr_bgp, evpn_mh_local_es_del_zrecv, &esi);
2809
c44ab6f1
AK		 2810 bgp_evpn_local_es_del(bgp, &esi);
2811
2812 return 0;
2813}
2814
2815static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS)
2816{
2817 esi_t esi;
2818 vni_t vni;
2819 struct bgp *bgp;
2820 struct stream *s;
2821 char buf[ESI_STR_LEN];
50f74cf1 2822
2823 bgp = bgp_lookup_by_vrf_id(vrf_id);
2824 if (!bgp)
2825 return 0;
2826
2827 s = zclient->ibuf;
2828 stream_get(&esi, s, sizeof(esi_t));
c44ab6f1 2829 vni = stream_getl(s);
50f74cf1 2830
2831 if (BGP_DEBUG(zebra, ZEBRA))
c44ab6f1
AK		 2832 zlog_debug("Rx %s ESI %s VNI %u",
2833 ZEBRA_VNI_ADD ? "add" : "del",
2834 esi_to_str(&esi, buf, sizeof(buf)), vni);
50f74cf1 2835
a383bfc7
AK		 2836 if (cmd == ZEBRA_LOCAL_ES_EVI_ADD) {
2837 frrtrace(2, frr_bgp, evpn_mh_local_es_evi_add_zrecv, &esi, vni);
2838
c44ab6f1 2839 bgp_evpn_local_es_evi_add(bgp, &esi, vni);
a383bfc7
AK		 2840 } else {
2841 frrtrace(2, frr_bgp, evpn_mh_local_es_evi_del_zrecv, &esi, vni);
2842
c44ab6f1 2843 bgp_evpn_local_es_evi_del(bgp, &esi, vni);
a383bfc7 2844 }
c44ab6f1 2845
50f74cf1 2846 return 0;
2847}
2848
121f9dee 2849static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS)
fe1dc5a3 2850{
c48d9f5f 2851 int filter = 0;
b67a60d2 2852 vni_t l3vni = 0;
14e814ea 2853 struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} };
b67a60d2 2854 struct in_addr originator_ip;
fe1dc5a3 2855 struct stream *s;
0483af6e 2856 ifindex_t svi_ifindex;
14e814ea 2857 bool is_anycast_mac = false;
fe1dc5a3 2858
14e814ea 2859 memset(&svi_rmac, 0, sizeof(struct ethaddr));
b67a60d2 2860 memset(&originator_ip, 0, sizeof(struct in_addr));
fe1dc5a3
MK		 2861 s = zclient->ibuf;
2862 l3vni = stream_getl(s);
b67a60d2 2863 if (cmd == ZEBRA_L3VNI_ADD) {
14e814ea 2864 stream_get(&svi_rmac, s, sizeof(struct ethaddr));
b67a60d2 2865 originator_ip.s_addr = stream_get_ipv4(s);
c48d9f5f 2866 stream_get(&filter, s, sizeof(int));
0483af6e 2867 svi_ifindex = stream_getl(s);
14e814ea
CS		 2868 stream_get(&vrr_rmac, s, sizeof(struct ethaddr));
2869 is_anycast_mac = stream_getl(s);
fe1dc5a3 2870
0483af6e 2871 if (BGP_DEBUG(zebra, ZEBRA))
c0d72166
DS		 2872 zlog_debug(
2873 "Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %pEA vrr-mac %pEA filter %s svi-if %u",
2874 vrf_id_to_name(vrf_id), l3vni, &svi_rmac,
2875 &vrr_rmac,
2876 filter ? "prefix-routes-only" : "none",
2877 svi_ifindex);
fe1dc5a3 2878
a383bfc7
AK		 2879 frrtrace(8, frr_bgp, evpn_local_l3vni_add_zrecv, l3vni, vrf_id,
2880 &svi_rmac, &vrr_rmac, filter, originator_ip,
2881 svi_ifindex, is_anycast_mac);
2882
14e814ea
CS		 2883 bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac,
2884 originator_ip, filter, svi_ifindex,
2885 is_anycast_mac);
0483af6e 2886 } else {
2887 if (BGP_DEBUG(zebra, ZEBRA))
2888 zlog_debug("Rx L3-VNI DEL VRF %s VNI %u",
2889 vrf_id_to_name(vrf_id), l3vni);
2890
a383bfc7
AK		 2891 frrtrace(2, frr_bgp, evpn_local_l3vni_del_zrecv, l3vni, vrf_id);
2892
fe1dc5a3 2893 bgp_evpn_local_l3vni_del(l3vni, vrf_id);
0483af6e 2894 }
fe1dc5a3
MK		 2895
2896 return 0;
2897}
2898
121f9dee 2899static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS)
128ea8ab 2900{
d62a17ae 2901 struct stream *s;
2902 vni_t vni;
2903 struct bgp *bgp;
a4d82a8a 2904 struct in_addr vtep_ip = {INADDR_ANY};
29c53922 2905 vrf_id_t tenant_vrf_id = VRF_DEFAULT;
76d07c7a 2906 struct in_addr mcast_grp = {INADDR_ANY};
9daa5d47 2907 ifindex_t svi_ifindex = 0;
d62a17ae 2908
2909 s = zclient->ibuf;
2910 vni = stream_getl(s);
121f9dee 2911 if (cmd == ZEBRA_VNI_ADD) {
d62a17ae 2912 vtep_ip.s_addr = stream_get_ipv4(s);
29c53922 2913 stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t));
76d07c7a 2914 mcast_grp.s_addr = stream_get_ipv4(s);
9daa5d47 2915 stream_get(&svi_ifindex, s, sizeof(ifindex_t));
29c53922
MK		 2916 }
2917
d62a17ae 2918 bgp = bgp_lookup_by_vrf_id(vrf_id);
2919 if (!bgp)
2920 return 0;
2921
2922 if (BGP_DEBUG(zebra, ZEBRA))
9daa5d47
AD		 2923 zlog_debug(
2924 "Rx VNI %s VRF %s VNI %u tenant-vrf %s SVI ifindex %u",
2925 (cmd == ZEBRA_VNI_ADD) ? "add" : "del",
2926 vrf_id_to_name(vrf_id), vni,
2927 vrf_id_to_name(tenant_vrf_id), svi_ifindex);
d62a17ae 2928
a383bfc7
AK		 2929 if (cmd == ZEBRA_VNI_ADD) {
2930 frrtrace(4, frr_bgp, evpn_local_vni_add_zrecv, vni, vtep_ip,
2931 tenant_vrf_id, mcast_grp);
2932
d62a17ae 2933 return bgp_evpn_local_vni_add(
975a328e
DA		 2934 bgp, vni,
2935 vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id,
9daa5d47 2936 tenant_vrf_id, mcast_grp, svi_ifindex);
a383bfc7
AK		 2937 } else {
2938 frrtrace(1, frr_bgp, evpn_local_vni_del_zrecv, vni);
2939
d62a17ae 2940 return bgp_evpn_local_vni_del(bgp, vni);
a383bfc7 2941 }
128ea8ab 2942}
2943
121f9dee 2944static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS)
128ea8ab 2945{
d62a17ae 2946 struct stream *s;
2947 vni_t vni;
2948 struct bgp *bgp;
2949 struct ethaddr mac;
2950 struct ipaddr ip;
2951 int ipa_len;
f07e1c99 2952 uint8_t flags = 0;
2953 uint32_t seqnum = 0;
ec0ab544 2954 int state = 0;
c44ab6f1
AK		 2955 char buf2[ESI_STR_LEN];
2956 esi_t esi;
d62a17ae 2957
2958 memset(&ip, 0, sizeof(ip));
2959 s = zclient->ibuf;
2960 vni = stream_getl(s);
28328ea9 2961 stream_get(&mac.octet, s, ETH_ALEN);
d62a17ae 2962 ipa_len = stream_getl(s);
2963 if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN
2964 && ipa_len != IPV6_MAX_BYTELEN) {
e50f7cfd 2965 flog_err(EC_BGP_MACIP_LEN,
1c50c1c0 2966 "%u:Recv MACIP %s with invalid IP addr length %d",
121f9dee 2967 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del",
1c50c1c0 2968 ipa_len);
d62a17ae 2969 return -1;
2970 }
2971
2972 if (ipa_len) {
2973 ip.ipa_type =
2974 (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6;
2975 stream_get(&ip.ip.addr, s, ipa_len);
2976 }
121f9dee 2977 if (cmd == ZEBRA_MACIP_ADD) {
f07e1c99 2978 flags = stream_getc(s);
2979 seqnum = stream_getl(s);
c44ab6f1 2980 stream_get(&esi, s, sizeof(esi_t));
ec0ab544
AK		 2981 } else {
2982 state = stream_getl(s);
35fb444b 2983 memset(&esi, 0, sizeof(esi_t));
f07e1c99 2984 }
d62a17ae 2985
2986 bgp = bgp_lookup_by_vrf_id(vrf_id);
2987 if (!bgp)
2988 return 0;
2989
2990 if (BGP_DEBUG(zebra, ZEBRA))
c0d72166 2991 zlog_debug(
2dd0dde7 2992 "%u:Recv MACIP %s f 0x%x MAC %pEA IP %pIA VNI %u seq %u state %d ESI %s",
c0d72166
DS		 2993 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags,
2994 &mac, &ip, vni, seqnum, state,
2995 esi_to_str(&esi, buf2, sizeof(buf2)));
d62a17ae 2996
a383bfc7
AK		 2997 if (cmd == ZEBRA_MACIP_ADD) {
2998 frrtrace(6, frr_bgp, evpn_local_macip_add_zrecv, vni, &mac, &ip,
2999 flags, seqnum, &esi);
3000
f07e1c99 3001 return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip,
c44ab6f1 3002 flags, seqnum, &esi);
a383bfc7
AK		 3003 } else {
3004 frrtrace(4, frr_bgp, evpn_local_macip_del_zrecv, vni, &mac, &ip,
3005 state);
3006
ec0ab544 3007 return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state);
a383bfc7 3008 }
128ea8ab 3009}
6aeb9e78 3010
a243d1db 3011static int bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS)
31310b25
MK		 3012{
3013 struct stream *s = NULL;
3014 struct bgp *bgp_vrf = NULL;
3015 struct prefix p;
31310b25
MK		 3016
3017 memset(&p, 0, sizeof(struct prefix));
3018 s = zclient->ibuf;
3019 stream_get(&p, s, sizeof(struct prefix));
3020
3021 bgp_vrf = bgp_lookup_by_vrf_id(vrf_id);
3022 if (!bgp_vrf)
a243d1db 3023 return 0;
31310b25
MK		 3024
3025 if (BGP_DEBUG(zebra, ZEBRA))
2dbe669b 3026 zlog_debug("Recv prefix %pFX %s on vrf %s", &p,
31310b25
MK		 3027 (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL",
3028 vrf_id_to_name(vrf_id));
3029
3030 if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) {
3031
3032 if (p.family == AF_INET)
d90b788e
A		 3033 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
3034 AFI_IP, SAFI_UNICAST);
31310b25 3035 else
d90b788e
A		 3036 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
3037 AFI_IP6, SAFI_UNICAST);
31310b25
MK		 3038
3039 } else {
3040 if (p.family == AF_INET)
d90b788e
A		 3041 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP,
3042 SAFI_UNICAST);
31310b25 3043 else
d90b788e
A		 3044 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6,
3045 SAFI_UNICAST);
31310b25 3046 }
a243d1db 3047 return 0;
31310b25
MK		 3048}
3049
a243d1db 3050static int bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS)
955bfd98
PZ		 3051{
3052 struct stream *s = NULL;
3053 uint8_t response_keep;
3054 uint32_t first;
3055 uint32_t last;
aec865e4
FR		 3056 uint8_t proto;
3057 unsigned short instance;
955bfd98
PZ		 3058
3059 s = zclient->ibuf;
aec865e4
FR		 3060 STREAM_GETC(s, proto);
3061 STREAM_GETW(s, instance);
955bfd98
PZ		 3062 STREAM_GETC(s, response_keep);
3063 STREAM_GETL(s, first);
3064 STREAM_GETL(s, last);
3065
aec865e4 3066 if (zclient->redist_default != proto) {
e50f7cfd 3067 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u",
1c50c1c0 3068 proto);
a243d1db 3069 return 0;
aec865e4
FR		 3070 }
3071 if (zclient->instance != instance) {
e50f7cfd 3072 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u",
1c50c1c0 3073 proto);
a243d1db 3074 return 0;
aec865e4
FR		 3075 }
3076
955bfd98
PZ		 3077 if (first > last ||
3078 first < MPLS_LABEL_UNRESERVED_MIN ||
3079 last > MPLS_LABEL_UNRESERVED_MAX) {
3080
e50f7cfd 3081 flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u",
1c50c1c0 3082 __func__, first, last);
a243d1db 3083 return 0;
955bfd98
PZ		 3084 }
3085 if (BGP_DEBUG(zebra, ZEBRA)) {
3086 zlog_debug("Label Chunk assign: %u - %u (%u) ",
3087 first, last, response_keep);
3088 }
3089
e70e9f8e 3090 bgp_lp_event_chunk(response_keep, first, last);
955bfd98 3091
a243d1db
DL		 3092 return 0;
3093
955bfd98 3094stream_failure: /* for STREAM_GETX */
a243d1db 3095 return -1;
955bfd98
PZ		 3096}
3097
342213ea
DS		 3098extern struct zebra_privs_t bgpd_privs;
3099
138c5a74
DS		 3100static int bgp_ifp_create(struct interface *ifp)
3101{
ef7bd2a3
DS		 3102 struct bgp *bgp;
3103
3104 if (BGP_DEBUG(zebra, ZEBRA))
096f7609
IR		 3105 zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf->vrf_id,
3106 ifp->name);
ef7bd2a3 3107
096f7609 3108 bgp = ifp->vrf->info;
ef7bd2a3
DS		 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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