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718e3744 1/* zebra client
896014f4
DL		 2 * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro
3 *
4 * This file is part of GNU Zebra.
5 *
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
718e3744 20
21#include <zebra.h>
22
23#include "command.h"
24#include "stream.h"
25#include "network.h"
26#include "prefix.h"
27#include "log.h"
28#include "sockunion.h"
29#include "zclient.h"
30#include "routemap.h"
31#include "thread.h"
3f9c7369 32#include "queue.h"
6e919709 33#include "memory.h"
856ca177 34#include "lib/json.h"
2376c3f2 35#include "lib/bfd.h"
039f3a34 36#include "filter.h"
cd1964ff 37#include "mpls.h"
128ea8ab 38#include "vxlan.h"
6cfe5d15 39#include "pbr.h"
718e3744 40
41#include "bgpd/bgpd.h"
42#include "bgpd/bgp_route.h"
43#include "bgpd/bgp_attr.h"
44#include "bgpd/bgp_nexthop.h"
45#include "bgpd/bgp_zebra.h"
46#include "bgpd/bgp_fsm.h"
a39275d7 47#include "bgpd/bgp_debug.h"
14454c9f 48#include "bgpd/bgp_errors.h"
8196f13d 49#include "bgpd/bgp_mpath.h"
fb018d25 50#include "bgpd/bgp_nexthop.h"
ffd0c037 51#include "bgpd/bgp_nht.h"
8c4f6381 52#include "bgpd/bgp_bfd.h"
cd1964ff 53#include "bgpd/bgp_label.h"
49e5a4a0 54#ifdef ENABLE_BGP_VNC
d62a17ae 55#include "bgpd/rfapi/rfapi_backend.h"
56#include "bgpd/rfapi/vnc_export_bgp.h"
65efcfce 57#endif
128ea8ab 58#include "bgpd/bgp_evpn.h"
ddb5b488 59#include "bgpd/bgp_mplsvpn.h"
955bfd98 60#include "bgpd/bgp_labelpool.h"
30d50e6d 61#include "bgpd/bgp_pbr.h"
0b9d9cd0 62#include "bgpd/bgp_evpn_private.h"
c44ab6f1 63#include "bgpd/bgp_evpn_mh.h"
6a69ac51 64#include "bgpd/bgp_mac.h"
6b0655a2 65
718e3744 66/* All information about zebra. */
228da428 67struct zclient *zclient = NULL;
718e3744 68
ad4cbda1 69/* Can we install into zebra? */
3dc339cd 70static inline bool bgp_install_info_to_zebra(struct bgp *bgp)
ad4cbda1 71{
d62a17ae 72 if (zclient->sock <= 0)
3dc339cd 73 return false;
ad4cbda1 74
bb4ef1ae 75 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
15569c58
DA		 76 zlog_debug(
77 "%s: No zebra instance to talk to, not installing information",
78 __func__);
3dc339cd 79 return false;
bb4ef1ae 80 }
ad4cbda1 81
3dc339cd 82 return true;
ad4cbda1 83}
84
afbb1c59
LB		 85int zclient_num_connects;
86
18a6dce6 87/* Router-id update message from zebra. */
121f9dee 88static int bgp_router_id_update(ZAPI_CALLBACK_ARGS)
718e3744 89{
d62a17ae 90 struct prefix router_id;
718e3744 91
d62a17ae 92 zebra_router_id_update_read(zclient->ibuf, &router_id);
a39275d7 93
d62a17ae 94 if (BGP_DEBUG(zebra, ZEBRA)) {
95 char buf[PREFIX2STR_BUFFER];
96 prefix2str(&router_id, buf, sizeof(buf));
97 zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf);
98 }
a39275d7 99
d62a17ae 100 bgp_router_id_zebra_bump(vrf_id, &router_id);
101 return 0;
718e3744 102}
103
fb018d25 104/* Nexthop update message from zebra. */
121f9dee 105static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS)
fb018d25 106{
121f9dee 107 bgp_parse_nexthop_update(cmd, vrf_id);
d62a17ae 108 return 0;
078430f6
DS		 109}
110
121f9dee 111static int bgp_read_import_check_update(ZAPI_CALLBACK_ARGS)
078430f6 112{
121f9dee 113 bgp_parse_nexthop_update(cmd, vrf_id);
d62a17ae 114 return 0;
fb018d25
DS		 115}
116
4a04e5f7 117/* Set or clear interface on which unnumbered neighbor is configured. This
118 * would in turn cause BGP to initiate or turn off IPv6 RAs on this
119 * interface.
120 */
d62a17ae 121static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp,
122 struct interface *upd_ifp)
4a04e5f7 123{
d62a17ae 124 struct listnode *node, *nnode;
125 struct peer *peer;
126
127 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
128 if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) {
129 if (upd_ifp) {
130 peer->ifp = upd_ifp;
131 bgp_zebra_initiate_radv(bgp, peer);
132 } else {
133 bgp_zebra_terminate_radv(bgp, peer);
134 peer->ifp = upd_ifp;
135 }
136 }
137 }
4a04e5f7 138}
139
d62a17ae 140static int bgp_read_fec_update(int command, struct zclient *zclient,
141 zebra_size_t length)
cd1964ff 142{
d62a17ae 143 bgp_parse_fec_update();
144 return 0;
cd1964ff
DS		 145}
146
d62a17ae 147static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp)
a80beece 148{
d62a17ae 149 struct listnode *node, *nnode;
150 struct peer *peer;
151
152 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
153 if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)
154 && peer->status != Established) {
155 if (peer_active(peer))
156 BGP_EVENT_ADD(peer, BGP_Stop);
157 BGP_EVENT_ADD(peer, BGP_Start);
158 }
159 }
a80beece
DS		 160}
161
d62a17ae 162static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc)
a197c47c 163{
d62a17ae 164 struct listnode *node;
165 struct connected *connected;
166 struct interface *ifp;
167 struct prefix *p;
168
169 /* Kick-off the FSM for any relevant peers only if there is a
170 * valid local address on the interface.
171 */
172 ifp = ifc->ifp;
173 for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) {
174 p = connected->address;
175 if (p->family == AF_INET6
176 && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6))
177 break;
178 }
179 if (!connected)
180 return;
181
182 bgp_start_interface_nbrs(bgp, ifp);
a197c47c
DS		 183}
184
d62a17ae 185static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc,
186 int del)
a80beece 187{
d62a17ae 188 struct listnode *node, *nnode;
189 struct peer *peer;
190 struct interface *ifp;
191
192 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
193 if (peer->conf_if
194 && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) {
195 peer->last_reset = PEER_DOWN_NBR_ADDR_DEL;
196 BGP_EVENT_ADD(peer, BGP_Stop);
197 }
198 }
199 /* Free neighbor also, if we're asked to. */
200 if (del) {
201 ifp = ifc->ifp;
202 listnode_delete(ifp->nbr_connected, ifc);
203 nbr_connected_free(ifc);
204 }
a80beece
DS		 205}
206
3c3c3252 207static int bgp_ifp_destroy(struct interface *ifp)
718e3744 208{
d62a17ae 209 struct bgp *bgp;
718e3744 210
3c3c3252 211 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
a4499b83 212
d62a17ae 213 if (BGP_DEBUG(zebra, ZEBRA))
3835984f 214 zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf_id, ifp->name);
a39275d7 215
85751d1d
DS		 216 if (bgp)
217 bgp_update_interface_nbrs(bgp, ifp, NULL);
64745052 218
6a69ac51
DS		 219 bgp_mac_del_mac_entry(ifp);
220
d62a17ae 221 return 0;
718e3744 222}
223
ddbf3e60 224static int bgp_ifp_up(struct interface *ifp)
718e3744 225{
d62a17ae 226 struct connected *c;
227 struct nbr_connected *nc;
228 struct listnode *node, *nnode;
229 struct bgp *bgp;
6aeb9e78 230
ddbf3e60 231 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
718e3744 232
6a69ac51
DS		 233 bgp_mac_add_mac_entry(ifp);
234
d62a17ae 235 if (BGP_DEBUG(zebra, ZEBRA))
ddbf3e60 236 zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf_id, ifp->name);
ad4cbda1 237
85751d1d
DS		 238 if (!bgp)
239 return 0;
240
d62a17ae 241 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
242 bgp_connected_add(bgp, c);
718e3744 243
d62a17ae 244 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
245 bgp_nbr_connected_add(bgp, nc);
a80beece 246
d62a17ae 247 return 0;
718e3744 248}
249
b0b69e59 250static int bgp_ifp_down(struct interface *ifp)
718e3744 251{
d62a17ae 252 struct connected *c;
253 struct nbr_connected *nc;
254 struct listnode *node, *nnode;
255 struct bgp *bgp;
c19fe3c7 256 struct peer *peer;
6aeb9e78 257
b0b69e59 258 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
718e3744 259
6a69ac51
DS		 260 bgp_mac_del_mac_entry(ifp);
261
d62a17ae 262 if (BGP_DEBUG(zebra, ZEBRA))
b0b69e59 263 zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf_id, ifp->name);
ad4cbda1 264
85751d1d
DS		 265 if (!bgp)
266 return 0;
267
d62a17ae 268 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
269 bgp_connected_delete(bgp, c);
718e3744 270
d62a17ae 271 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
272 bgp_nbr_connected_delete(bgp, nc, 1);
a80beece 273
d62a17ae 274 /* Fast external-failover */
c19fe3c7 275 if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) {
718e3744 276
d62a17ae 277 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
8c4f6381 278#if defined(HAVE_CUMULUS)
d62a17ae 279 /* Take down directly connected EBGP peers as well as
280 * 1-hop BFD
281 * tracked (directly connected) IBGP peers.
282 */
c8d6f0d6 283 if ((peer->ttl != BGP_DEFAULT_TTL)
e2521429 284 && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED)
d62a17ae 285 && (!peer->bfd_info
286 || bgp_bfd_is_peer_multihop(peer)))
8c4f6381 287#else
d62a17ae 288 /* Take down directly connected EBGP peers */
c8d6f0d6 289 if ((peer->ttl != BGP_DEFAULT_TTL)
e2521429 290 && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED))
8c4f6381 291#endif
d62a17ae 292 continue;
718e3744 293
d62a17ae 294 if (ifp == peer->nexthop.ifp) {
295 BGP_EVENT_ADD(peer, BGP_Stop);
296 peer->last_reset = PEER_DOWN_IF_DOWN;
297 }
298 }
299 }
718e3744 300
d62a17ae 301 return 0;
718e3744 302}
303
121f9dee 304static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS)
718e3744 305{
d62a17ae 306 struct connected *ifc;
2f9123e0
DS		 307 struct bgp *bgp;
308
309 bgp = bgp_lookup_by_vrf_id(vrf_id);
d62a17ae 310
121f9dee 311 ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
d62a17ae 312
313 if (ifc == NULL)
314 return 0;
315
316 if (bgp_debug_zebra(ifc->address)) {
317 char buf[PREFIX2STR_BUFFER];
318 prefix2str(ifc->address, buf, sizeof(buf));
319 zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id,
320 ifc->ifp->name, buf);
321 }
322
85751d1d
DS		 323 if (!bgp)
324 return 0;
325
d62a17ae 326 if (if_is_operative(ifc->ifp)) {
d62a17ae 327 bgp_connected_add(bgp, ifc);
2f9123e0 328
d62a17ae 329 /* If we have learnt of any neighbors on this interface,
330 * check to kick off any BGP interface-based neighbors,
331 * but only if this is a link-local address.
332 */
333 if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6)
334 && !list_isempty(ifc->ifp->nbr_connected))
335 bgp_start_interface_nbrs(bgp, ifc->ifp);
336 }
337
338 return 0;
718e3744 339}
340
121f9dee 341static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS)
718e3744 342{
d62a17ae 343 struct connected *ifc;
344 struct bgp *bgp;
6aeb9e78 345
2f9123e0 346 bgp = bgp_lookup_by_vrf_id(vrf_id);
2f9123e0 347
121f9dee 348 ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
718e3744 349
d62a17ae 350 if (ifc == NULL)
351 return 0;
718e3744 352
d62a17ae 353 if (bgp_debug_zebra(ifc->address)) {
354 char buf[PREFIX2STR_BUFFER];
355 prefix2str(ifc->address, buf, sizeof(buf));
356 zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id,
357 ifc->ifp->name, buf);
358 }
a39275d7 359
85751d1d 360 if (bgp && if_is_operative(ifc->ifp)) {
2f9123e0 361 bgp_connected_delete(bgp, ifc);
d62a17ae 362 }
718e3744 363
721c0857 364 connected_free(&ifc);
718e3744 365
d62a17ae 366 return 0;
718e3744 367}
368
121f9dee 369static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS)
a80beece 370{
d62a17ae 371 struct nbr_connected *ifc = NULL;
372 struct bgp *bgp;
373
121f9dee 374 ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id);
d62a17ae 375
376 if (ifc == NULL)
377 return 0;
378
379 if (bgp_debug_zebra(ifc->address)) {
380 char buf[PREFIX2STR_BUFFER];
381 prefix2str(ifc->address, buf, sizeof(buf));
382 zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id,
383 ifc->ifp->name, buf);
384 }
385
386 if (if_is_operative(ifc->ifp)) {
387 bgp = bgp_lookup_by_vrf_id(vrf_id);
388 if (bgp)
389 bgp_nbr_connected_add(bgp, ifc);
390 }
391
392 return 0;
a80beece
DS		 393}
394
121f9dee 395static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS)
a80beece 396{
d62a17ae 397 struct nbr_connected *ifc = NULL;
398 struct bgp *bgp;
6aeb9e78 399
121f9dee 400 ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id);
a80beece 401
d62a17ae 402 if (ifc == NULL)
403 return 0;
a80beece 404
d62a17ae 405 if (bgp_debug_zebra(ifc->address)) {
406 char buf[PREFIX2STR_BUFFER];
407 prefix2str(ifc->address, buf, sizeof(buf));
408 zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id,
409 ifc->ifp->name, buf);
410 }
a80beece 411
d62a17ae 412 if (if_is_operative(ifc->ifp)) {
413 bgp = bgp_lookup_by_vrf_id(vrf_id);
414 if (bgp)
415 bgp_nbr_connected_delete(bgp, ifc, 0);
416 }
a80beece 417
d62a17ae 418 nbr_connected_free(ifc);
a80beece 419
d62a17ae 420 return 0;
a80beece
DS		 421}
422
bfcd43b2 423/* VRF update for an interface. */
121f9dee 424static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS)
bfcd43b2 425{
d62a17ae 426 struct interface *ifp;
427 vrf_id_t new_vrf_id;
428 struct connected *c;
429 struct nbr_connected *nc;
430 struct listnode *node, *nnode;
431 struct bgp *bgp;
c19fe3c7 432 struct peer *peer;
bfcd43b2 433
d62a17ae 434 ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id,
435 &new_vrf_id);
436 if (!ifp)
437 return 0;
bfcd43b2 438
d62a17ae 439 if (BGP_DEBUG(zebra, ZEBRA) && ifp)
440 zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id,
441 ifp->name, new_vrf_id);
bfcd43b2 442
d62a17ae 443 bgp = bgp_lookup_by_vrf_id(vrf_id);
bfcd43b2 444
85751d1d
DS		 445 if (bgp) {
446 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
447 bgp_connected_delete(bgp, c);
bfcd43b2 448
85751d1d
DS		 449 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
450 bgp_nbr_connected_delete(bgp, nc, 1);
bfcd43b2 451
85751d1d
DS		 452 /* Fast external-failover */
453 if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) {
454 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
c8d6f0d6 455 if ((peer->ttl != BGP_DEFAULT_TTL)
e2521429
DA		 456 && (peer->gtsm_hops
457 != BGP_GTSM_HOPS_CONNECTED))
85751d1d 458 continue;
bfcd43b2 459
85751d1d
DS		 460 if (ifp == peer->nexthop.ifp)
461 BGP_EVENT_ADD(peer, BGP_Stop);
462 }
d62a17ae 463 }
464 }
bfcd43b2 465
a36898e7 466 if_update_to_new_vrf(ifp, new_vrf_id);
bfcd43b2 467
d62a17ae 468 bgp = bgp_lookup_by_vrf_id(new_vrf_id);
469 if (!bgp)
470 return 0;
bfcd43b2 471
d62a17ae 472 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
473 bgp_connected_add(bgp, c);
bfcd43b2 474
d62a17ae 475 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
476 bgp_nbr_connected_add(bgp, nc);
477 return 0;
bfcd43b2 478}
479
718e3744 480/* Zebra route add and delete treatment. */
121f9dee 481static int zebra_read_route(ZAPI_CALLBACK_ARGS)
718e3744 482{
9de1f7ff 483 enum nexthop_types_t nhtype;
74489921
RW		 484 struct zapi_route api;
485 union g_addr nexthop;
9de1f7ff 486 ifindex_t ifindex;
74489921 487 int add, i;
d62a17ae 488 struct bgp *bgp;
489
490 bgp = bgp_lookup_by_vrf_id(vrf_id);
491 if (!bgp)
492 return 0;
493
74489921
RW		 494 if (zapi_route_decode(zclient->ibuf, &api) < 0)
495 return -1;
d62a17ae 496
74489921
RW		 497 /* we completely ignore srcdest routes for now. */
498 if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX))
499 return 0;
d62a17ae 500
74489921
RW		 501 /* ignore link-local address. */
502 if (api.prefix.family == AF_INET6
503 && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6))
504 return 0;
d62a17ae 505
74489921
RW		 506 nexthop = api.nexthops[0].gate;
507 ifindex = api.nexthops[0].ifindex;
9de1f7ff 508 nhtype = api.nexthops[0].type;
d62a17ae 509
121f9dee 510 add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD);
74489921 511 if (add) {
d62a17ae 512 /*
513 * The ADD message is actually an UPDATE and there is no
514 * explicit DEL
515 * for a prior redistributed route, if any. So, perform an
516 * implicit
517 * DEL processing for the same redistributed route from any
518 * other
519 * source type.
520 */
521 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
522 if (i != api.type)
74489921 523 bgp_redistribute_delete(bgp, &api.prefix, i,
d62a17ae 524 api.instance);
525 }
526
527 /* Now perform the add/update. */
74489921 528 bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex,
a4d82a8a
PZ		 529 nhtype, api.metric, api.type, api.instance,
530 api.tag);
d62a17ae 531 } else {
74489921
RW		 532 bgp_redistribute_delete(bgp, &api.prefix, api.type,
533 api.instance);
a39275d7 534 }
d62a17ae 535
74489921
RW		 536 if (bgp_debug_zebra(&api.prefix)) {
537 char buf[2][PREFIX_STRLEN];
538
539 prefix2str(&api.prefix, buf[0], sizeof(buf[0]));
77e62f2b 540 if (add) {
541 inet_ntop(api.prefix.family, &nexthop, buf[1],
542 sizeof(buf[1]));
543 zlog_debug(
544 "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI,
545 vrf_id, zebra_route_string(api.type),
546 api.instance, buf[0], buf[1], nhtype,
547 ifindex, api.metric, api.tag);
548 } else {
549 zlog_debug(
550 "Rx route DEL VRF %u %s[%d] %s",
551 vrf_id, zebra_route_string(api.type),
552 api.instance, buf[0]);
553 }
d62a17ae 554 }
555
556 return 0;
718e3744 557}
6b0655a2 558
d62a17ae 559struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id)
718e3744 560{
f4e14fdb 561 struct vrf *vrf;
d62a17ae 562 struct listnode *cnode;
563 struct interface *ifp;
564 struct connected *connected;
565 struct prefix_ipv4 p;
566 struct prefix *cp;
567
f4e14fdb
RW		 568 vrf = vrf_lookup_by_id(vrf_id);
569 if (!vrf)
570 return NULL;
571
d62a17ae 572 p.family = AF_INET;
573 p.prefix = *addr;
574 p.prefixlen = IPV4_MAX_BITLEN;
575
451fda4f 576 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 577 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
578 cp = connected->address;
579
580 if (cp->family == AF_INET)
581 if (prefix_match(cp, (struct prefix *)&p))
582 return ifp;
583 }
718e3744 584 }
d62a17ae 585 return NULL;
718e3744 586}
587
d62a17ae 588struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id)
718e3744 589{
f4e14fdb 590 struct vrf *vrf;
d62a17ae 591 struct listnode *cnode;
592 struct interface *ifp;
593 struct connected *connected;
594 struct prefix *cp;
595
f4e14fdb
RW		 596 vrf = vrf_lookup_by_id(vrf_id);
597 if (!vrf)
598 return NULL;
599
451fda4f 600 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 601 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
602 cp = connected->address;
603
604 if (cp->family == AF_INET)
605 if (IPV4_ADDR_SAME(&cp->u.prefix4, addr))
606 return ifp;
607 }
718e3744 608 }
d62a17ae 609 return NULL;
718e3744 610}
611
d62a17ae 612struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex,
613 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_ipv6 p;
620 struct prefix *cp;
621
f4e14fdb
RW		 622 vrf = vrf_lookup_by_id(vrf_id);
623 if (!vrf)
624 return NULL;
625
d62a17ae 626 p.family = AF_INET6;
627 p.prefix = *addr;
628 p.prefixlen = IPV6_MAX_BITLEN;
629
451fda4f 630 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 631 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
632 cp = connected->address;
633
634 if (cp->family == AF_INET6)
635 if (prefix_match(cp, (struct prefix *)&p)) {
636 if (IN6_IS_ADDR_LINKLOCAL(
637 &cp->u.prefix6)) {
638 if (ifindex == ifp->ifindex)
639 return ifp;
640 } else
641 return ifp;
642 }
643 }
718e3744 644 }
d62a17ae 645 return NULL;
718e3744 646}
647
d62a17ae 648struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr,
649 ifindex_t ifindex, vrf_id_t vrf_id)
718e3744 650{
f4e14fdb 651 struct vrf *vrf;
d62a17ae 652 struct listnode *cnode;
653 struct interface *ifp;
654 struct connected *connected;
655 struct prefix *cp;
656
f4e14fdb
RW		 657 vrf = vrf_lookup_by_id(vrf_id);
658 if (!vrf)
659 return NULL;
660
451fda4f 661 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 662 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
663 cp = connected->address;
664
665 if (cp->family == AF_INET6)
666 if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) {
667 if (IN6_IS_ADDR_LINKLOCAL(
668 &cp->u.prefix6)) {
669 if (ifindex == ifp->ifindex)
670 return ifp;
671 } else
672 return ifp;
673 }
674 }
718e3744 675 }
d62a17ae 676 return NULL;
718e3744 677}
678
d62a17ae 679static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr)
718e3744 680{
d62a17ae 681 struct listnode *cnode;
682 struct connected *connected;
683 struct prefix *cp;
684
685 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
686 cp = connected->address;
687
688 if (cp->family == AF_INET6)
689 if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) {
690 memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN);
691 return 1;
692 }
693 }
694 return 0;
718e3744 695}
696
d62a17ae 697static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr)
718e3744 698{
d62a17ae 699 struct listnode *cnode;
700 struct connected *connected;
701 struct prefix *cp;
702
703 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
704 cp = connected->address;
705
706 if (cp->family == AF_INET6)
707 if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) {
708 memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN);
709 return 1;
710 }
711 }
712 return 0;
718e3744 713}
718e3744 714
d62a17ae 715static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr)
6ee06fa9 716{
d62a17ae 717 struct listnode *cnode;
718 struct connected *connected;
719 struct prefix *cp;
720
721 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
722 cp = connected->address;
723 if ((cp->family == AF_INET)
724 && !ipv4_martian(&(cp->u.prefix4))) {
725 *addr = cp->u.prefix4;
726 return 1;
727 }
728 }
729 return 0;
6ee06fa9
PM		 730}
731
17cdd31e
DS		 732
733bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote,
734 struct bgp_nexthop *nexthop, struct peer *peer)
718e3744 735{
d62a17ae 736 int ret = 0;
737 struct interface *ifp = NULL;
738
739 memset(nexthop, 0, sizeof(struct bgp_nexthop));
740
741 if (!local)
17cdd31e 742 return false;
d62a17ae 743 if (!remote)
17cdd31e 744 return false;
d62a17ae 745
746 if (local->sa.sa_family == AF_INET) {
747 nexthop->v4 = local->sin.sin_addr;
748 if (peer->update_if)
749 ifp = if_lookup_by_name(peer->update_if,
a36898e7 750 peer->bgp->vrf_id);
d62a17ae 751 else
752 ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr,
753 peer->bgp->vrf_id);
718e3744 754 }
d62a17ae 755 if (local->sa.sa_family == AF_INET6) {
8f2b2139 756 memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN);
d62a17ae 757 if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) {
758 if (peer->conf_if || peer->ifname)
759 ifp = if_lookup_by_name(peer->conf_if
760 ? peer->conf_if
761 : peer->ifname,
a36898e7 762 peer->bgp->vrf_id);
d62a17ae 763 } else if (peer->update_if)
764 ifp = if_lookup_by_name(peer->update_if,
a36898e7 765 peer->bgp->vrf_id);
d62a17ae 766 else
767 ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr,
768 local->sin6.sin6_scope_id,
769 peer->bgp->vrf_id);
718e3744 770 }
d62a17ae 771
17cdd31e
DS		 772 if (!ifp) {
773 /*
774 * BGP views do not currently get proper data
775 * from zebra( when attached ) to be able to
776 * properly resolve nexthops, so give this
777 * instance type a pass.
778 */
779 if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW)
780 return true;
781 /*
782 * If we have no interface data but we have established
783 * some connection w/ zebra than something has gone
784 * terribly terribly wrong here, so say this failed
785 * If we do not any zebra connection then not
786 * having a ifp pointer is ok.
787 */
788 return zclient_num_connects ? false : true;
789 }
d62a17ae 790
791 nexthop->ifp = ifp;
792
793 /* IPv4 connection, fetch and store IPv6 local address(es) if any. */
794 if (local->sa.sa_family == AF_INET) {
795 /* IPv6 nexthop*/
796 ret = if_get_ipv6_global(ifp, &nexthop->v6_global);
797
798 if (!ret) {
799 /* There is no global nexthop. Use link-local address as
800 * both the
801 * global and link-local nexthop. In this scenario, the
802 * expectation
803 * for interop is that the network admin would use a
804 * route-map to
805 * specify the global IPv6 nexthop.
806 */
807 if_get_ipv6_local(ifp, &nexthop->v6_global);
808 memcpy(&nexthop->v6_local, &nexthop->v6_global,
809 IPV6_MAX_BYTELEN);
810 } else
811 if_get_ipv6_local(ifp, &nexthop->v6_local);
812
813 if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id))
814 peer->shared_network = 1;
815 else
816 peer->shared_network = 0;
718e3744 817 }
718e3744 818
d62a17ae 819 /* IPv6 connection, fetch and store IPv4 local address if any. */
820 if (local->sa.sa_family == AF_INET6) {
821 struct interface *direct = NULL;
822
823 /* IPv4 nexthop. */
824 ret = if_get_ipv4_address(ifp, &nexthop->v4);
975a328e 825 if (!ret && peer->local_id.s_addr != INADDR_ANY)
d62a17ae 826 nexthop->v4 = peer->local_id;
827
828 /* Global address*/
829 if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) {
830 memcpy(&nexthop->v6_global, &local->sin6.sin6_addr,
831 IPV6_MAX_BYTELEN);
832
833 /* If directory connected set link-local address. */
834 direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr,
835 remote->sin6.sin6_scope_id,
836 peer->bgp->vrf_id);
837 if (direct)
838 if_get_ipv6_local(ifp, &nexthop->v6_local);
839 } else
840 /* Link-local address. */
841 {
842 ret = if_get_ipv6_global(ifp, &nexthop->v6_global);
843
844 /* If there is no global address. Set link-local
845 address as
846 global. I know this break RFC specification... */
847 /* In this scenario, the expectation for interop is that
848 * the
849 * network admin would use a route-map to specify the
850 * global
851 * IPv6 nexthop.
852 */
853 if (!ret)
854 memcpy(&nexthop->v6_global,
855 &local->sin6.sin6_addr,
856 IPV6_MAX_BYTELEN);
857 /* Always set the link-local address */
858 memcpy(&nexthop->v6_local, &local->sin6.sin6_addr,
859 IPV6_MAX_BYTELEN);
860 }
861
862 if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)
863 || if_lookup_by_ipv6(&remote->sin6.sin6_addr,
864 remote->sin6.sin6_scope_id,
865 peer->bgp->vrf_id))
866 peer->shared_network = 1;
867 else
868 peer->shared_network = 0;
869 }
718e3744 870
d62a17ae 871/* KAME stack specific treatment. */
718e3744 872#ifdef KAME
d62a17ae 873 if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global)
874 && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) {
875 SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0);
876 }
877 if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local)
878 && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) {
879 SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0);
880 }
718e3744 881#endif /* KAME */
e33a4880 882
d62a17ae 883 /* If we have identified the local interface, there is no error for now.
884 */
17cdd31e 885 return true;
718e3744 886}
887
18ee8310 888static struct in6_addr *
40381db7 889bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex)
73ac8160 890{
d62a17ae 891 struct in6_addr *nexthop = NULL;
892
893 /* Only global address nexthop exists. */
dc94fe42
RW		 894 if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL
895 || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) {
40381db7 896 nexthop = &path->attr->mp_nexthop_global;
77e62f2b 897 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 898 *ifindex = path->attr->nh_ifindex;
77e62f2b 899 }
d62a17ae 900
901 /* If both global and link-local address present. */
dc94fe42
RW		 902 if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
903 || path->attr->mp_nexthop_len
904 == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) {
d62a17ae 905 /* Check if route-map is set to prefer global over link-local */
40381db7
DS		 906 if (path->attr->mp_nexthop_prefer_global) {
907 nexthop = &path->attr->mp_nexthop_global;
77e62f2b 908 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 909 *ifindex = path->attr->nh_ifindex;
77e62f2b 910 } else {
d62a17ae 911 /* Workaround for Cisco's nexthop bug. */
912 if (IN6_IS_ADDR_UNSPECIFIED(
40381db7
DS		 913 &path->attr->mp_nexthop_global)
914 && path->peer->su_remote->sa.sa_family
59a0f1cb 915 == AF_INET6) {
d62a17ae 916 nexthop =
40381db7 917 &path->peer->su_remote->sin6.sin6_addr;
77e62f2b 918 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 919 *ifindex = path->peer->nexthop.ifp
59a0f1cb 920 ->ifindex;
77e62f2b 921 } else {
40381db7 922 nexthop = &path->attr->mp_nexthop_local;
77e62f2b 923 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 924 *ifindex = path->attr->nh_lla_ifindex;
77e62f2b 925 }
d62a17ae 926 }
927 }
928
929 return nexthop;
73ac8160
DS		 930}
931
b8685f9b 932static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p,
3dc339cd 933 struct bgp_path_info *path)
73ac8160 934{
b4cb15c6
DL		 935 route_map_result_t ret;
936
40381db7
DS		 937 ret = route_map_apply(map, p, RMAP_BGP, path);
938 bgp_attr_flush(path->attr);
b4cb15c6
DL		 939
940 if (ret != RMAP_DENYMATCH)
3dc339cd 941 return true;
d62a17ae 942
943 if (bgp_debug_zebra(p)) {
944 if (p->family == AF_INET) {
945 char buf[2][INET_ADDRSTRLEN];
946 zlog_debug(
947 "Zebra rmap deny: IPv4 route %s/%d nexthop %s",
948 inet_ntop(AF_INET, &p->u.prefix4, buf[0],
949 sizeof(buf[0])),
950 p->prefixlen,
40381db7 951 inet_ntop(AF_INET, &path->attr->nexthop, buf[1],
d62a17ae 952 sizeof(buf[1])));
953 }
954 if (p->family == AF_INET6) {
955 char buf[2][INET6_ADDRSTRLEN];
77e62f2b 956 ifindex_t ifindex;
957 struct in6_addr *nexthop;
958
40381db7 959 nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex);
d62a17ae 960 zlog_debug(
961 "Zebra rmap deny: IPv6 route %s/%d nexthop %s",
962 inet_ntop(AF_INET6, &p->u.prefix6, buf[0],
963 sizeof(buf[0])),
964 p->prefixlen,
77e62f2b 965 inet_ntop(AF_INET6, nexthop,
d62a17ae 966 buf[1], sizeof(buf[1])));
967 }
968 }
3dc339cd 969 return false;
73ac8160
DS		 970}
971
b98f7728
PG		 972static struct thread *bgp_tm_thread_connect;
973static bool bgp_tm_status_connected;
31c28cd7
PG		 974static bool bgp_tm_chunk_obtained;
975#define BGP_FLOWSPEC_TABLE_CHUNK 100000
976static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size;
6818e7e5 977struct bgp *bgp_tm_bgp;
b98f7728
PG		 978
979static int bgp_zebra_tm_connect(struct thread *t)
980{
981 struct zclient *zclient;
982 int delay = 10, ret = 0;
983
984 zclient = THREAD_ARG(t);
985 if (bgp_tm_status_connected && zclient->sock > 0)
986 delay = 60;
987 else {
988 bgp_tm_status_connected = false;
989 ret = tm_table_manager_connect(zclient);
990 }
991 if (ret < 0) {
b7cd3069 992 zlog_info("Error connecting to table manager!");
b98f7728
PG		 993 bgp_tm_status_connected = false;
994 } else {
995 if (!bgp_tm_status_connected)
996 zlog_debug("Connecting to table manager. Success");
997 bgp_tm_status_connected = true;
31c28cd7
PG		 998 if (!bgp_tm_chunk_obtained) {
999 if (bgp_zebra_get_table_range(bgp_tm_chunk_size,
1000 &bgp_tm_min,
6818e7e5 1001 &bgp_tm_max) >= 0) {
31c28cd7 1002 bgp_tm_chunk_obtained = true;
6818e7e5
PG		 1003 /* parse non installed entries */
1004 bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC);
1005 }
31c28cd7 1006 }
b98f7728
PG		 1007 }
1008 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
1009 &bgp_tm_thread_connect);
1010 return 0;
1011}
1012
6818e7e5
PG		 1013bool bgp_zebra_tm_chunk_obtained(void)
1014{
1015 return bgp_tm_chunk_obtained;
1016}
1017
31c28cd7
PG		 1018uint32_t bgp_zebra_tm_get_id(void)
1019{
1020 static int table_id;
1021
1022 if (!bgp_tm_chunk_obtained)
1023 return ++table_id;
1024 return bgp_tm_min++;
1025}
1026
6818e7e5 1027void bgp_zebra_init_tm_connect(struct bgp *bgp)
b98f7728
PG		 1028{
1029 int delay = 1;
1030
1031 /* if already set, do nothing
1032 */
1033 if (bgp_tm_thread_connect != NULL)
1034 return;
1035 bgp_tm_status_connected = false;
31c28cd7
PG		 1036 bgp_tm_chunk_obtained = false;
1037 bgp_tm_min = bgp_tm_max = 0;
1038 bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK;
6818e7e5 1039 bgp_tm_bgp = bgp;
b98f7728
PG		 1040 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
1041 &bgp_tm_thread_connect);
1042}
1043
1044int bgp_zebra_get_table_range(uint32_t chunk_size,
1045 uint32_t *start, uint32_t *end)
1046{
1047 int ret;
1048
1049 if (!bgp_tm_status_connected)
1050 return -1;
1051 ret = tm_get_table_chunk(zclient, chunk_size, start, end);
1052 if (ret < 0) {
e50f7cfd 1053 flog_err(EC_BGP_TABLE_CHUNK,
1c50c1c0 1054 "BGP: Error getting table chunk %u", chunk_size);
b98f7728
PG		 1055 return -1;
1056 }
1057 zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]",
1058 chunk_size, *start, *end);
1059 return 0;
1060}
1061
3dc339cd
DA		 1062static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1063 struct in_addr *nexthop,
1064 struct attr *attr, bool is_evpn,
1065 struct zapi_nexthop *api_nh)
77e62f2b 1066{
1067 api_nh->gate.ipv4 = *nexthop;
e1e71450 1068 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1069
1070 /* Need to set fields appropriately for EVPN routes imported into
1071 * a VRF (which are programmed as onlink on l3-vni SVI) as well as
1072 * connected routes leaked into a VRF.
1073 */
e1e71450 1074 if (is_evpn) {
77e62f2b 1075 api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
68a02e06 1076 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
e1e71450 1077 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1078 } else if (nh_othervrf &&
77e62f2b 1079 api_nh->gate.ipv4.s_addr == INADDR_ANY) {
1080 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1081 api_nh->ifindex = attr->nh_ifindex;
1082 } else
1083 api_nh->type = NEXTHOP_TYPE_IPV4;
1084
3dc339cd 1085 return true;
77e62f2b 1086}
1087
3dc339cd
DA		 1088static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1089 struct in6_addr *nexthop,
1090 ifindex_t ifindex,
1091 struct bgp_path_info *pi,
1092 struct bgp_path_info *best_pi,
1093 bool is_evpn,
1094 struct zapi_nexthop *api_nh)
77e62f2b 1095{
1096 struct attr *attr;
1097
40381db7 1098 attr = pi->attr;
e1e71450 1099 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1100
e1e71450 1101 if (is_evpn) {
77e62f2b 1102 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
68a02e06 1103 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
e1e71450 1104 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1105 } else if (nh_othervrf) {
77e62f2b 1106 if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) {
1107 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1108 api_nh->ifindex = attr->nh_ifindex;
1109 } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
1110 if (ifindex == 0)
3dc339cd 1111 return false;
77e62f2b 1112 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1113 api_nh->ifindex = ifindex;
1114 } else {
1115 api_nh->type = NEXTHOP_TYPE_IPV6;
1116 api_nh->ifindex = 0;
1117 }
1118 } else {
1119 if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
40381db7
DS		 1120 if (pi == best_pi
1121 && attr->mp_nexthop_len
1122 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL)
1123 if (pi->peer->nexthop.ifp)
1124 ifindex =
1125 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1126 if (!ifindex) {
40381db7
DS		 1127 if (pi->peer->conf_if)
1128 ifindex = pi->peer->ifp->ifindex;
1129 else if (pi->peer->ifname)
77e62f2b 1130 ifindex = ifname2ifindex(
40381db7
DS		 1131 pi->peer->ifname,
1132 pi->peer->bgp->vrf_id);
1133 else if (pi->peer->nexthop.ifp)
1134 ifindex =
1135 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1136 }
1137
1138 if (ifindex == 0)
3dc339cd 1139 return false;
77e62f2b 1140 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1141 api_nh->ifindex = ifindex;
1142 } else {
1143 api_nh->type = NEXTHOP_TYPE_IPV6;
1144 api_nh->ifindex = 0;
1145 }
1146 }
bd23c840 1147 api_nh->gate.ipv6 = *nexthop;
77e62f2b 1148
3dc339cd 1149 return true;
77e62f2b 1150}
1151
f7e1c681 1152static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr,
1153 uint64_t tot_bw, uint32_t *nh_weight)
4e30bc2b 1154{
f7e1c681 1155 uint32_t bw;
1156 uint64_t tmp;
1157
1158 bw = attr->link_bw;
1159 /* zero link-bandwidth and link-bandwidth not present are treated
1160 * as the same situation.
1161 */
1162 if (!bw) {
1163 /* the only situations should be if we're either told
1164 * to skip or use default weight.
1165 */
1166 if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING)
1167 return false;
1168 *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT;
1169 } else {
1170 tmp = (uint64_t)bw * 100;
1171 *nh_weight = ((uint32_t)(tmp / tot_bw));
1172 }
1173
1174 return true;
4e30bc2b 1175}
1176
9bcb3eef 1177void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p,
4b7e6066 1178 struct bgp_path_info *info, struct bgp *bgp, afi_t afi,
d62a17ae 1179 safi_t safi)
718e3744 1180{
7cc27d41 1181 struct zapi_route api = { 0 };
9913029c 1182 struct zapi_nexthop *api_nh;
2ad4f093 1183 int nh_family;
a74e593b 1184 unsigned int valid_nh_count = 0;
2ad4f093 1185 int has_valid_label = 0;
d7c0a89a 1186 uint8_t distance;
d62a17ae 1187 struct peer *peer;
4b7e6066 1188 struct bgp_path_info *mpinfo;
d7c0a89a 1189 uint32_t metric;
b4cb15c6 1190 struct attr local_attr;
4b7e6066
DS		 1191 struct bgp_path_info local_info;
1192 struct bgp_path_info *mpinfo_cp = &local_info;
d62a17ae 1193 route_tag_t tag;
1194 mpls_label_t label;
ddb5b488 1195 int nh_othervrf = 0;
960035b2 1196 char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */
3f54c705 1197 bool is_evpn;
77e62f2b 1198 int nh_updated;
4e30bc2b 1199 bool do_wt_ecmp;
1200 uint64_t cum_bw = 0;
d62a17ae 1201
1202 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1203 * know of this instance.
1204 */
1205 if (!bgp_install_info_to_zebra(bgp))
1206 return;
1207
d62a17ae 1208 if (bgp->main_zebra_update_hold)
1209 return;
1210
960035b2 1211 if (bgp_debug_zebra(p))
ba1976db 1212 prefix2str(p, buf_prefix, sizeof(buf_prefix));
960035b2 1213
d90b788e 1214 if (safi == SAFI_FLOWSPEC) {
9bcb3eef
DS		 1215 bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi,
1216 safi, true);
d90b788e
A		 1217 return;
1218 }
529efa23 1219
ddb5b488
PZ		 1220 /*
1221 * vrf leaking support (will have only one nexthop)
1222 */
1223 if (info->extra && info->extra->bgp_orig)
1224 nh_othervrf = 1;
1225
9913029c 1226 /* Make Zebra API structure. */
9913029c
RW		 1227 api.vrf_id = bgp->vrf_id;
1228 api.type = ZEBRA_ROUTE_BGP;
1229 api.safi = safi;
1230 api.prefix = *p;
1231 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
1232
d62a17ae 1233 peer = info->peer;
1234
ddb5b488
PZ		 1235 if (info->type == ZEBRA_ROUTE_BGP
1236 && info->sub_type == BGP_ROUTE_IMPORTED) {
1237
1ec90b5e 1238 /* Obtain peer from parent */
1239 if (info->extra && info->extra->parent)
4b7e6066
DS		 1240 peer = ((struct bgp_path_info *)(info->extra->parent))
1241 ->peer;
ddb5b488
PZ		 1242 }
1243
d62a17ae 1244 tag = info->attr->tag;
1245
88493076 1246 /* If the route's source is EVPN, flag as such. */
77e62f2b 1247 is_evpn = is_route_parent_evpn(info);
1248 if (is_evpn)
90264d64 1249 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
d3135ba3 1250
d62a17ae 1251 if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED
1252 || info->sub_type == BGP_ROUTE_AGGREGATE) {
9913029c 1253 SET_FLAG(api.flags, ZEBRA_FLAG_IBGP);
4e8b02f4 1254 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
718e3744 1255 }
a39275d7 1256
c8d6f0d6 1257 if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL)
d62a17ae 1258 || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)
892fedb6 1259 || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK))
d62a17ae 1260
4e8b02f4 1261 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
d62a17ae 1262
951745bd
PG		 1263 if (info->attr->rmap_table_id) {
1264 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1265 api.tableid = info->attr->rmap_table_id;
1266 }
1267
2ad4f093
RW		 1268 /* Metric is currently based on the best-path only */
1269 metric = info->attr->med;
4e30bc2b 1270
1271 /* Determine if we're doing weighted ECMP or not */
f7e1c681 1272 do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info);
4e30bc2b 1273 if (do_wt_ecmp)
1274 cum_bw = bgp_path_info_mpath_cumbw(info);
1275
18ee8310 1276 for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) {
f7e1c681 1277 uint32_t nh_weight;
1278
a74e593b
RW		 1279 if (valid_nh_count >= multipath_num)
1280 break;
1281
b4cb15c6 1282 *mpinfo_cp = *mpinfo;
f7e1c681 1283 nh_weight = 0;
b4cb15c6 1284
d0d695f4
RW		 1285 /* Get nexthop address-family */
1286 if (p->family == AF_INET
1287 && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))
1288 nh_family = AF_INET;
1289 else if (p->family == AF_INET6
1290 || (p->family == AF_INET
1291 && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)))
1292 nh_family = AF_INET6;
1293 else
1294 continue;
1295
f7e1c681 1296 /* If processing for weighted ECMP, determine the next hop's
1297 * weight. Based on user setting, we may skip the next hop
1298 * in some situations.
1299 */
1300 if (do_wt_ecmp) {
1301 if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr,
1302 cum_bw, &nh_weight))
1303 continue;
1304 }
1374aec9 1305 api_nh = &api.nexthops[valid_nh_count];
2ad4f093 1306 if (nh_family == AF_INET) {
ddb5b488 1307 if (bgp_debug_zebra(&api.prefix)) {
ddb5b488
PZ		 1308 if (mpinfo->extra) {
1309 zlog_debug(
1310 "%s: p=%s, bgp_is_valid_label: %d",
1311 __func__, buf_prefix,
1312 bgp_is_valid_label(
1313 &mpinfo->extra
1314 ->label[0]));
1315 } else {
1316 zlog_debug(
1317 "%s: p=%s, extra is NULL, no label",
1318 __func__, buf_prefix);
1319 }
1320 }
1321
6c0a6053 1322 if (bgp->table_map[afi][safi].name) {
d62a17ae 1323 /* Copy info and attributes, so the route-map
b4cb15c6
DL		 1324 apply doesn't modify the BGP route info. */
1325 local_attr = *mpinfo->attr;
1326 mpinfo_cp->attr = &local_attr;
ddb5b488 1327 }
b4cb15c6 1328
ddb5b488 1329 if (bgp->table_map[afi][safi].name) {
b4cb15c6 1330 if (!bgp_table_map_apply(
d62a17ae 1331 bgp->table_map[afi][safi].map, p,
b4cb15c6
DL		 1332 mpinfo_cp))
1333 continue;
1334
1335 /* metric/tag is only allowed to be
1336 * overridden on 1st nexthop */
1337 if (mpinfo == info) {
1338 metric = mpinfo_cp->attr->med;
1339 tag = mpinfo_cp->attr->tag;
d62a17ae 1340 }
b4cb15c6 1341 }
d62a17ae 1342
77e62f2b 1343 nh_updated = update_ipv4nh_for_route_install(
1344 nh_othervrf,
e1e71450 1345 nh_othervrf ?
1346 info->extra->bgp_orig : bgp,
77e62f2b 1347 &mpinfo_cp->attr->nexthop,
1348 mpinfo_cp->attr, is_evpn, api_nh);
2ad4f093 1349 } else {
f220da99 1350 ifindex_t ifindex = IFINDEX_INTERNAL;
2ad4f093 1351 struct in6_addr *nexthop;
9913029c 1352
6c0a6053 1353 if (bgp->table_map[afi][safi].name) {
ddb5b488
PZ		 1354 /* Copy info and attributes, so the route-map
1355 apply doesn't modify the BGP route info. */
1356 local_attr = *mpinfo->attr;
1357 mpinfo_cp->attr = &local_attr;
ddb5b488
PZ		 1358 }
1359
d62a17ae 1360 if (bgp->table_map[afi][safi].name) {
1361 /* Copy info and attributes, so the route-map
b4cb15c6
DL		 1362 apply doesn't modify the BGP route info. */
1363 local_attr = *mpinfo->attr;
1364 mpinfo_cp->attr = &local_attr;
1365
1366 if (!bgp_table_map_apply(
d62a17ae 1367 bgp->table_map[afi][safi].map, p,
b4cb15c6
DL		 1368 mpinfo_cp))
1369 continue;
1370
1371 /* metric/tag is only allowed to be
1372 * overridden on 1st nexthop */
1373 if (mpinfo == info) {
1374 metric = mpinfo_cp->attr->med;
1375 tag = mpinfo_cp->attr->tag;
d62a17ae 1376 }
b4cb15c6 1377 }
18ee8310
DS		 1378 nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp,
1379 &ifindex);
77e62f2b 1380 nh_updated = update_ipv6nh_for_route_install(
e1e71450 1381 nh_othervrf, nh_othervrf ?
1382 info->extra->bgp_orig : bgp,
1383 nexthop, ifindex,
77e62f2b 1384 mpinfo, info, is_evpn, api_nh);
2ad4f093 1385 }
d62a17ae 1386
77e62f2b 1387 /* Did we get proper nexthop info to update zebra? */
1388 if (!nh_updated)
1389 continue;
1390
a4d82a8a
PZ		 1391 if (mpinfo->extra
1392 && bgp_is_valid_label(&mpinfo->extra->label[0])
90264d64 1393 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
2ad4f093 1394 has_valid_label = 1;
b57ba6d2 1395 label = label_pton(&mpinfo->extra->label[0]);
9913029c 1396
68a02e06
MS		 1397 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL);
1398
2ad4f093
RW		 1399 api_nh->label_num = 1;
1400 api_nh->labels[0] = label;
d62a17ae 1401 }
22e63104 1402 memcpy(&api_nh->rmac, &(mpinfo->attr->rmac),
1403 sizeof(struct ethaddr));
f7e1c681 1404 api_nh->weight = nh_weight;
4e30bc2b 1405
2ad4f093
RW		 1406 valid_nh_count++;
1407 }
d62a17ae 1408
5cc347c4
DS		 1409 /*
1410 * When we create an aggregate route we must also
1411 * install a Null0 route in the RIB, so overwrite
1412 * what was written into api with a blackhole route
1413 */
1414 if (info->sub_type == BGP_ROUTE_AGGREGATE)
1415 zapi_route_set_blackhole(&api, BLACKHOLE_NULL);
1416 else
2ad4f093 1417 api.nexthop_num = valid_nh_count;
d62a17ae 1418
2ad4f093
RW		 1419 SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
1420 api.metric = metric;
d62a17ae 1421
2ad4f093
RW		 1422 if (tag) {
1423 SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
1424 api.tag = tag;
1425 }
d62a17ae 1426
2ad4f093
RW		 1427 distance = bgp_distance_apply(p, info, afi, safi, bgp);
1428 if (distance) {
1429 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
1430 api.distance = distance;
1431 }
d62a17ae 1432
2ad4f093
RW		 1433 if (bgp_debug_zebra(p)) {
1434 char prefix_buf[PREFIX_STRLEN];
1435 char nh_buf[INET6_ADDRSTRLEN];
d8744f72
CS		 1436 char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'};
1437 char buf1[ETHER_ADDR_STRLEN];
2ad4f093
RW		 1438 char label_buf[20];
1439 int i;
1440
1441 prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf));
1442 zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI
1443 " count %d",
1444 valid_nh_count ? "add" : "delete", bgp->vrf_id,
1445 prefix_buf, api.metric, api.tag, api.nexthop_num);
1446 for (i = 0; i < api.nexthop_num; i++) {
1447 api_nh = &api.nexthops[i];
1448
1ee069db
CS		 1449 switch (api_nh->type) {
1450 case NEXTHOP_TYPE_IFINDEX:
77e62f2b 1451 nh_buf[0] = '\0';
1ee069db
CS		 1452 break;
1453 case NEXTHOP_TYPE_IPV4:
1454 case NEXTHOP_TYPE_IPV4_IFINDEX:
1455 nh_family = AF_INET;
77e62f2b 1456 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1457 sizeof(nh_buf));
1ee069db
CS		 1458 break;
1459 case NEXTHOP_TYPE_IPV6:
1460 case NEXTHOP_TYPE_IPV6_IFINDEX:
1461 nh_family = AF_INET6;
1462 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1463 sizeof(nh_buf));
1464 break;
1465 case NEXTHOP_TYPE_BLACKHOLE:
1466 strlcpy(nh_buf, "blackhole", sizeof(nh_buf));
1467 break;
1468 default:
1469 /* Note: add new nexthop case */
1470 assert(0);
1471 break;
77e62f2b 1472 }
2ad4f093
RW		 1473
1474 label_buf[0] = '\0';
d8744f72 1475 eth_buf[0] = '\0';
a4d82a8a
PZ		 1476 if (has_valid_label
1477 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))
a7799788
CS		 1478 snprintf(label_buf, sizeof(label_buf),
1479 "label %u", api_nh->labels[0]);
d8744f72
CS		 1480 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)
1481 && !is_zero_mac(&api_nh->rmac))
a7799788
CS		 1482 snprintf(eth_buf, sizeof(eth_buf), " RMAC %s",
1483 prefix_mac2str(&api_nh->rmac,
1484 buf1, sizeof(buf1)));
4e30bc2b 1485 zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s",
77e62f2b 1486 i + 1, nh_buf, api_nh->ifindex,
4e30bc2b 1487 api_nh->vrf_id, api_nh->weight,
1488 label_buf, eth_buf);
d62a17ae 1489 }
1490 }
2ad4f093 1491
960035b2
PZ		 1492 if (bgp_debug_zebra(p)) {
1493 int recursion_flag = 0;
1494
1495 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION))
1496 recursion_flag = 1;
1497
1498 zlog_debug("%s: %s: announcing to zebra (recursion %sset)",
1499 __func__, buf_prefix,
1500 (recursion_flag ? "" : "NOT "));
1501 }
2ad4f093
RW		 1502 zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD
1503 : ZEBRA_ROUTE_DELETE,
1504 zclient, &api);
718e3744 1505}
1506
73ac8160 1507/* Announce all routes of a table to zebra */
d62a17ae 1508void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi)
73ac8160 1509{
9bcb3eef 1510 struct bgp_dest *dest;
d62a17ae 1511 struct bgp_table *table;
40381db7 1512 struct bgp_path_info *pi;
d62a17ae 1513
1514 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1515 * know of this instance.
1516 */
1517 if (!bgp_install_info_to_zebra(bgp))
1518 return;
1519
1520 table = bgp->rib[afi][safi];
1521 if (!table)
1522 return;
1523
9bcb3eef
DS		 1524 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1525 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
40381db7 1526 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
ddb5b488 1527
40381db7
DS		 1528 (pi->type == ZEBRA_ROUTE_BGP
1529 && (pi->sub_type == BGP_ROUTE_NORMAL
1530 || pi->sub_type == BGP_ROUTE_IMPORTED)))
ddb5b488 1531
9bcb3eef
DS		 1532 bgp_zebra_announce(dest,
1533 bgp_dest_get_prefix(dest),
b54892e0 1534 pi, bgp, afi, safi);
73ac8160
DS		 1535}
1536
5a1ae2c2 1537void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info,
568e10ca 1538 struct bgp *bgp, safi_t safi)
718e3744 1539{
2ad4f093 1540 struct zapi_route api;
f7df1907 1541 struct peer *peer;
ddb5b488 1542
d62a17ae 1543 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1544 * know of this instance.
1545 */
568e10ca 1546 if (!bgp_install_info_to_zebra(bgp))
d62a17ae 1547 return;
1548
f7df1907
PG		 1549 if (safi == SAFI_FLOWSPEC) {
1550 peer = info->peer;
d90b788e
A		 1551 bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false);
1552 return;
f7df1907 1553 }
529efa23 1554
2ad4f093 1555 memset(&api, 0, sizeof(api));
568e10ca 1556 api.vrf_id = bgp->vrf_id;
2ad4f093
RW		 1557 api.type = ZEBRA_ROUTE_BGP;
1558 api.safi = safi;
1559 api.prefix = *p;
d62a17ae 1560
1276ce38
PG		 1561 if (info->attr->rmap_table_id) {
1562 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1563 api.tableid = info->attr->rmap_table_id;
1564 }
1565
88493076 1566 /* If the route's source is EVPN, flag as such. */
1567 if (is_route_parent_evpn(info))
90264d64 1568 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
01740ff4 1569
2ad4f093
RW		 1570 if (bgp_debug_zebra(p)) {
1571 char buf[PREFIX_STRLEN];
d62a17ae 1572
2ad4f093 1573 prefix2str(&api.prefix, buf, sizeof(buf));
568e10ca 1574 zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf);
d62a17ae 1575 }
d62a17ae 1576
2ad4f093 1577 zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
718e3744 1578}
56c1f7d8 1579
d7c0a89a
QY		 1580struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type,
1581 unsigned short instance)
7c8ff89e 1582{
d62a17ae 1583 struct list *red_list;
1584 struct listnode *node;
1585 struct bgp_redist *red;
7c8ff89e 1586
d62a17ae 1587 red_list = bgp->redist[afi][type];
1588 if (!red_list)
1589 return (NULL);
7c8ff89e 1590
d62a17ae 1591 for (ALL_LIST_ELEMENTS_RO(red_list, node, red))
1592 if (red->instance == instance)
1593 return red;
7c8ff89e 1594
d62a17ae 1595 return NULL;
7c8ff89e
DS		 1596}
1597
d7c0a89a
QY		 1598struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type,
1599 unsigned short instance)
7c8ff89e 1600{
d62a17ae 1601 struct list *red_list;
1602 struct bgp_redist *red;
7c8ff89e 1603
d62a17ae 1604 red = bgp_redist_lookup(bgp, afi, type, instance);
1605 if (red)
1606 return red;
7c8ff89e 1607
d62a17ae 1608 if (!bgp->redist[afi][type])
1609 bgp->redist[afi][type] = list_new();
7c8ff89e 1610
d62a17ae 1611 red_list = bgp->redist[afi][type];
9f5dc319 1612 red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist));
d62a17ae 1613 red->instance = instance;
7c8ff89e 1614
d62a17ae 1615 listnode_add(red_list, red);
7c8ff89e 1616
d62a17ae 1617 return red;
7c8ff89e
DS		 1618}
1619
d7c0a89a
QY		 1620static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type,
1621 unsigned short instance)
7c8ff89e 1622{
d62a17ae 1623 struct bgp_redist *red;
1624
1625 red = bgp_redist_lookup(bgp, afi, type, instance);
1626
1627 if (red) {
1628 listnode_delete(bgp->redist[afi][type], red);
1629 XFREE(MTYPE_BGP_REDIST, red);
acdf5e25 1630 if (!bgp->redist[afi][type]->count)
6a154c88 1631 list_delete(&bgp->redist[afi][type]);
d62a17ae 1632 }
7c8ff89e 1633}
6b0655a2 1634
718e3744 1635/* Other routes redistribution into BGP. */
d7c0a89a 1636int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type,
e923dd62 1637 unsigned short instance, bool changed)
718e3744 1638{
e923dd62 1639 /* If redistribute options are changed call
1640 * bgp_redistribute_unreg() to reset the option and withdraw
1641 * the routes
1642 */
1643 if (changed)
1644 bgp_redistribute_unreg(bgp, afi, type, instance);
718e3744 1645
d62a17ae 1646 /* Return if already redistribute flag is set. */
1647 if (instance) {
1648 if (redist_check_instance(&zclient->mi_redist[afi][type],
1649 instance))
1650 return CMD_WARNING;
718e3744 1651
d62a17ae 1652 redist_add_instance(&zclient->mi_redist[afi][type], instance);
1653 } else {
1654 if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1655 return CMD_WARNING;
7076bb2f 1656
49e5a4a0 1657#ifdef ENABLE_BGP_VNC
f920dd6d 1658 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
d62a17ae 1659 vnc_export_bgp_enable(
1660 bgp, afi); /* only enables if mode bits cfg'd */
1661 }
65efcfce
LB		 1662#endif
1663
d62a17ae 1664 vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id);
1665 }
718e3744 1666
ea12cf11
DS		 1667 /*
1668 * Don't try to register if we're not connected to Zebra or Zebra
1669 * doesn't know of this instance.
1670 *
1671 * When we come up later well resend if needed.
d62a17ae 1672 */
1673 if (!bgp_install_info_to_zebra(bgp))
ea12cf11 1674 return CMD_SUCCESS;
a39275d7 1675
d62a17ae 1676 if (BGP_DEBUG(zebra, ZEBRA))
1677 zlog_debug("Tx redistribute add VRF %u afi %d %s %d",
1678 bgp->vrf_id, afi, zebra_route_string(type),
1679 instance);
518f0eb1 1680
d62a17ae 1681 /* Send distribute add message to zebra. */
1682 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1683 instance, bgp->vrf_id);
718e3744 1684
d62a17ae 1685 return CMD_SUCCESS;
718e3744 1686}
1687
d62a17ae 1688int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1689 unsigned short instance)
518f0eb1 1690{
d62a17ae 1691 /* Don't try to send if we're not connected to Zebra or Zebra doesn't
1692 * know of this instance.
1693 */
1694 if (!bgp_install_info_to_zebra(bgp))
1695 return -1;
1696
1697 if (BGP_DEBUG(zebra, ZEBRA))
1698 zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d",
1699 bgp->vrf_id, afi, zebra_route_string(type),
1700 instance);
1701
1702 /* Send distribute add message to zebra. */
1703 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type,
1704 instance, bgp->vrf_id);
1705 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1706 instance, bgp->vrf_id);
1707
1708 return 0;
518f0eb1
DS		 1709}
1710
718e3744 1711/* Redistribute with route-map specification. */
3dc339cd
DA		 1712bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name,
1713 struct route_map *route_map)
718e3744 1714{
d62a17ae 1715 if (red->rmap.name && (strcmp(red->rmap.name, name) == 0))
3dc339cd 1716 return false;
718e3744 1717
0a22ddfb 1718 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1719 /* Decrement the count for existing routemap and
1720 * increment the count for new route map.
1721 */
1722 route_map_counter_decrement(red->rmap.map);
d62a17ae 1723 red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name);
1de27621 1724 red->rmap.map = route_map;
b4897fa5 1725 route_map_counter_increment(red->rmap.map);
718e3744 1726
3dc339cd 1727 return true;
718e3744 1728}
1729
1730/* Redistribute with metric specification. */
3dc339cd
DA		 1731bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red,
1732 afi_t afi, int type, uint32_t metric)
718e3744 1733{
9bcb3eef 1734 struct bgp_dest *dest;
40381db7 1735 struct bgp_path_info *pi;
d62a17ae 1736
1737 if (red->redist_metric_flag && red->redist_metric == metric)
3dc339cd 1738 return false;
d62a17ae 1739
1740 red->redist_metric_flag = 1;
1741 red->redist_metric = metric;
1742
9bcb3eef
DS		 1743 for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest;
1744 dest = bgp_route_next(dest)) {
1745 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
40381db7
DS		 1746 if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE
1747 && pi->type == type
1748 && pi->instance == red->instance) {
d62a17ae 1749 struct attr *old_attr;
1750 struct attr new_attr;
1751
6f4f49b2 1752 new_attr = *pi->attr;
d62a17ae 1753 new_attr.med = red->redist_metric;
40381db7
DS		 1754 old_attr = pi->attr;
1755 pi->attr = bgp_attr_intern(&new_attr);
d62a17ae 1756 bgp_attr_unintern(&old_attr);
1757
9bcb3eef 1758 bgp_path_info_set_flag(dest, pi,
18ee8310 1759 BGP_PATH_ATTR_CHANGED);
9bcb3eef 1760 bgp_process(bgp, dest, afi, SAFI_UNICAST);
d62a17ae 1761 }
1762 }
1763 }
1764
3dc339cd 1765 return true;
718e3744 1766}
1767
1768/* Unset redistribution. */
d62a17ae 1769int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1770 unsigned short instance)
718e3744 1771{
d62a17ae 1772 struct bgp_redist *red;
1773
1774 red = bgp_redist_lookup(bgp, afi, type, instance);
1775 if (!red)
1776 return CMD_SUCCESS;
1777
1778 /* Return if zebra connection is disabled. */
1779 if (instance) {
1780 if (!redist_check_instance(&zclient->mi_redist[afi][type],
1781 instance))
1782 return CMD_WARNING;
1783 redist_del_instance(&zclient->mi_redist[afi][type], instance);
1784 } else {
1785 if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1786 return CMD_WARNING;
1787 vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id);
1788 }
718e3744 1789
65efcfce 1790
d62a17ae 1791 if (bgp_install_info_to_zebra(bgp)) {
1792 /* Send distribute delete message to zebra. */
1793 if (BGP_DEBUG(zebra, ZEBRA))
1794 zlog_debug("Tx redistribute del VRF %u afi %d %s %d",
1795 bgp->vrf_id, afi, zebra_route_string(type),
1796 instance);
1797 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi,
1798 type, instance, bgp->vrf_id);
1799 }
1800
1801 /* Withdraw redistributed routes from current BGP's routing table. */
1802 bgp_redistribute_withdraw(bgp, afi, type, instance);
1803
1804 return CMD_SUCCESS;
718e3744 1805}
1806
6aeb9e78 1807/* Unset redistribution. */
d62a17ae 1808int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1809 unsigned short instance)
6aeb9e78 1810{
d62a17ae 1811 struct bgp_redist *red;
6aeb9e78 1812
ddb5b488
PZ		 1813/*
1814 * vnc and vpn->vrf checks must be before red check because
1815 * they operate within bgpd irrespective of zebra connection
1816 * status. red lookup fails if there is no zebra connection.
1817 */
49e5a4a0 1818#ifdef ENABLE_BGP_VNC
f920dd6d 1819 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
ddb5b488
PZ		 1820 vnc_export_bgp_disable(bgp, afi);
1821 }
1822#endif
ddb5b488 1823
d62a17ae 1824 red = bgp_redist_lookup(bgp, afi, type, instance);
1825 if (!red)
1826 return CMD_SUCCESS;
6aeb9e78 1827
d62a17ae 1828 bgp_redistribute_unreg(bgp, afi, type, instance);
6aeb9e78 1829
d62a17ae 1830 /* Unset route-map. */
0a22ddfb 1831 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1832 route_map_counter_decrement(red->rmap.map);
d62a17ae 1833 red->rmap.map = NULL;
6aeb9e78 1834
d62a17ae 1835 /* Unset metric. */
1836 red->redist_metric_flag = 0;
1837 red->redist_metric = 0;
6aeb9e78 1838
d62a17ae 1839 bgp_redist_del(bgp, afi, type, instance);
6aeb9e78 1840
d62a17ae 1841 return CMD_SUCCESS;
6aeb9e78
DS		 1842}
1843
fc2408ec
DS		 1844void bgp_redistribute_redo(struct bgp *bgp)
1845{
1846 afi_t afi;
1847 int i;
1848 struct list *red_list;
1849 struct listnode *node;
1850 struct bgp_redist *red;
1851
1852 for (afi = AFI_IP; afi < AFI_MAX; afi++) {
1853 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
1854
1855 red_list = bgp->redist[afi][i];
1856 if (!red_list)
1857 continue;
1858
1859 for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) {
1860 bgp_redistribute_resend(bgp, afi, i,
1861 red->instance);
1862 }
1863 }
1864 }
1865}
1866
401d56cc
DS		 1867/* Unset redistribute vrf bitmap during triggers like
1868 restart networking or delete VRFs */
1869void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id)
eb117f29 1870{
d62a17ae 1871 int i;
1872 afi_t afi;
1873
1874 for (afi = AFI_IP; afi < AFI_MAX; afi++)
1875 for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
7e20406f 1876 if (vrf_bitmap_check(zclient->redist[afi][i],
401d56cc 1877 old_vrf_id))
d62a17ae 1878 vrf_bitmap_unset(zclient->redist[afi][i],
1879 old_vrf_id);
d62a17ae 1880 return;
eb117f29
SK		 1881}
1882
d62a17ae 1883void bgp_zclient_reset(void)
718e3744 1884{
d62a17ae 1885 zclient_reset(zclient);
718e3744 1886}
1887
ad4cbda1 1888/* Register this instance with Zebra. Invoked upon connect (for
1889 * default instance) and when other VRFs are learnt (or created and
1890 * already learnt).
1891 */
d62a17ae 1892void bgp_zebra_instance_register(struct bgp *bgp)
ad4cbda1 1893{
d62a17ae 1894 /* Don't try to register if we're not connected to Zebra */
1895 if (!zclient || zclient->sock < 0)
1896 return;
ad4cbda1 1897
d62a17ae 1898 if (BGP_DEBUG(zebra, ZEBRA))
1899 zlog_debug("Registering VRF %u", bgp->vrf_id);
ad4cbda1 1900
d62a17ae 1901 /* Register for router-id, interfaces, redistributed routes. */
1902 zclient_send_reg_requests(zclient, bgp->vrf_id);
7724c0a1 1903
e2f3a930
T		 1904 /* For EVPN instance, register to learn about VNIs, if appropriate. */
1905 if (bgp->advertise_all_vni)
d62a17ae 1906 bgp_zebra_advertise_all_vni(bgp, 1);
1ee0a2df
DS		 1907
1908 bgp_nht_register_nexthops(bgp);
ad4cbda1 1909}
1910
1911/* Deregister this instance with Zebra. Invoked upon the instance
1912 * being deleted (default or VRF) and it is already registered.
1913 */
d62a17ae 1914void bgp_zebra_instance_deregister(struct bgp *bgp)
ad4cbda1 1915{
d62a17ae 1916 /* Don't try to deregister if we're not connected to Zebra */
1917 if (zclient->sock < 0)
1918 return;
ad4cbda1 1919
d62a17ae 1920 if (BGP_DEBUG(zebra, ZEBRA))
1921 zlog_debug("Deregistering VRF %u", bgp->vrf_id);
ad4cbda1 1922
e2f3a930
T		 1923 /* For EVPN instance, unregister learning about VNIs, if appropriate. */
1924 if (bgp->advertise_all_vni)
d62a17ae 1925 bgp_zebra_advertise_all_vni(bgp, 0);
7724c0a1 1926
d62a17ae 1927 /* Deregister for router-id, interfaces, redistributed routes. */
1928 zclient_send_dereg_requests(zclient, bgp->vrf_id);
ad4cbda1 1929}
1930
d62a17ae 1931void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 1932{
d62a17ae 1933 int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL;
5c81b96a 1934
d62a17ae 1935 /* Don't try to initiate if we're not connected to Zebra */
1936 if (zclient->sock < 0)
1937 return;
4a04e5f7 1938
d62a17ae 1939 if (BGP_DEBUG(zebra, ZEBRA))
1940 zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id,
1941 peer->host);
4a04e5f7 1942
b3a3290e
DS		 1943 /*
1944 * If unnumbered peer (peer->ifp) call thru zapi to start RAs.
1945 * If we don't have an ifp pointer, call function to find the
1946 * ifps for a numbered enhe peer to turn RAs on.
1947 */
1948 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
1949 peer->ifp, 1, ra_interval)
1950 : bgp_nht_reg_enhe_cap_intfs(peer);
4a04e5f7 1951}
1952
d62a17ae 1953void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 1954{
d62a17ae 1955 /* Don't try to terminate if we're not connected to Zebra */
1956 if (zclient->sock < 0)
1957 return;
4a04e5f7 1958
d62a17ae 1959 if (BGP_DEBUG(zebra, ZEBRA))
1960 zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id,
1961 peer->host);
4a04e5f7 1962
b3a3290e
DS		 1963 /*
1964 * If unnumbered peer (peer->ifp) call thru zapi to stop RAs.
1965 * If we don't have an ifp pointer, call function to find the
1966 * ifps for a numbered enhe peer to turn RAs off.
1967 */
1968 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
1969 peer->ifp, 0, 0)
1970 : bgp_nht_dereg_enhe_cap_intfs(peer);
4a04e5f7 1971}
1972
31310b25
MK		 1973int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni)
1974{
1975 struct stream *s = NULL;
1976
1977 /* Check socket. */
1978 if (!zclient || zclient->sock < 0)
1979 return 0;
1980
1981 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 1982 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
1983 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 1984 zlog_debug(
1985 "%s: No zebra instance to talk to, cannot advertise subnet",
1986 __func__);
31310b25 1987 return 0;
bb4ef1ae 1988 }
31310b25
MK		 1989
1990 s = zclient->obuf;
1991 stream_reset(s);
1992
1993 zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id);
1994 stream_putc(s, advertise);
1995 stream_put3(s, vni);
1996 stream_putw_at(s, 0, stream_get_endp(s));
1997
1998 return zclient_send_message(zclient);
1999}
2000
a8016157
CS		 2001int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni)
2002{
2003 struct stream *s = NULL;
2004
2005 /* Check socket. */
2006 if (!zclient || zclient->sock < 0)
2007 return 0;
2008
2009 /* Don't try to register if Zebra doesn't know of this instance. */
2010 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2011 return 0;
2012
2013 s = zclient->obuf;
2014 stream_reset(s);
2015
2016 zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id);
2017 stream_putc(s, advertise);
2018 stream_putl(s, vni);
2019 stream_putw_at(s, 0, stream_get_endp(s));
2020
2021 return zclient_send_message(zclient);
2022}
2023
1a98c087
MK		 2024int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni)
2025{
2026 struct stream *s = NULL;
2027
2028 /* Check socket. */
2029 if (!zclient || zclient->sock < 0)
2030 return 0;
2031
2032 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2033 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2034 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2035 zlog_debug(
2036 "%s: No zebra instance to talk to, not installing gw_macip",
2037 __func__);
1a98c087 2038 return 0;
bb4ef1ae 2039 }
1a98c087
MK		 2040
2041 s = zclient->obuf;
2042 stream_reset(s);
2043
2044 zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id);
2045 stream_putc(s, advertise);
cc6d5476 2046 stream_putl(s, vni);
1a98c087
MK		 2047 stream_putw_at(s, 0, stream_get_endp(s));
2048
2049 return zclient_send_message(zclient);
2050}
2051
fd069644
DS		 2052int bgp_zebra_vxlan_flood_control(struct bgp *bgp,
2053 enum vxlan_flood_control flood_ctrl)
2054{
2055 struct stream *s;
2056
2057 /* Check socket. */
2058 if (!zclient || zclient->sock < 0)
2059 return 0;
2060
2061 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2062 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2063 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2064 zlog_debug(
2065 "%s: No zebra instance to talk to, not installing all vni",
2066 __func__);
fd069644 2067 return 0;
bb4ef1ae 2068 }
fd069644
DS		 2069
2070 s = zclient->obuf;
2071 stream_reset(s);
2072
2073 zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id);
2074 stream_putc(s, flood_ctrl);
2075 stream_putw_at(s, 0, stream_get_endp(s));
2076
2077 return zclient_send_message(zclient);
2078}
2079
d62a17ae 2080int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise)
7724c0a1 2081{
d62a17ae 2082 struct stream *s;
7724c0a1 2083
d62a17ae 2084 /* Check socket. */
2085 if (!zclient || zclient->sock < 0)
2086 return 0;
7724c0a1 2087
d62a17ae 2088 /* Don't try to register if Zebra doesn't know of this instance. */
2089 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2090 return 0;
7724c0a1 2091
d62a17ae 2092 s = zclient->obuf;
2093 stream_reset(s);
7724c0a1 2094
d62a17ae 2095 zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id);
2096 stream_putc(s, advertise);
fbac9605
DS		 2097 /* Also inform current BUM handling setting. This is really
2098 * relevant only when 'advertise' is set.
2099 */
fd069644 2100 stream_putc(s, bgp->vxlan_flood_ctrl);
d62a17ae 2101 stream_putw_at(s, 0, stream_get_endp(s));
7724c0a1 2102
d62a17ae 2103 return zclient_send_message(zclient);
7724c0a1 2104}
2105
0b9d9cd0
CS		 2106int bgp_zebra_dup_addr_detection(struct bgp *bgp)
2107{
2108 struct stream *s;
2109
2110 /* Check socket. */
2111 if (!zclient || zclient->sock < 0)
2112 return 0;
2113
2114 /* Don't try to register if Zebra doesn't know of this instance. */
2115 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2116 return 0;
2117
2118 if (BGP_DEBUG(zebra, ZEBRA))
2119 zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u",
2120 bgp->evpn_info->dup_addr_detect ?
2121 "enable" : "disable",
2122 bgp->evpn_info->dad_max_moves,
2123 bgp->evpn_info->dad_time,
2124 bgp->evpn_info->dad_freeze ?
2125 "enable" : "disable",
2126 bgp->evpn_info->dad_freeze_time);
2127
2128 s = zclient->obuf;
2129 stream_reset(s);
2130 zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION,
2131 bgp->vrf_id);
2132 stream_putl(s, bgp->evpn_info->dup_addr_detect);
2133 stream_putl(s, bgp->evpn_info->dad_time);
2134 stream_putl(s, bgp->evpn_info->dad_max_moves);
2135 stream_putl(s, bgp->evpn_info->dad_freeze);
2136 stream_putl(s, bgp->evpn_info->dad_freeze_time);
2137 stream_putw_at(s, 0, stream_get_endp(s));
2138
2139 return zclient_send_message(zclient);
2140}
2141
121f9dee 2142static int rule_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2143{
2144 uint32_t seqno, priority, unique;
2145 enum zapi_rule_notify_owner note;
2146 struct bgp_pbr_action *bgp_pbra;
ffee150e 2147 struct bgp_pbr_rule *bgp_pbr = NULL;
30d50e6d
PG		 2148 ifindex_t ifi;
2149
2150 if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique,
2151 &ifi, &note))
2152 return -1;
2153
70eabd12 2154 bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique);
30d50e6d 2155 if (!bgp_pbra) {
ffee150e
PG		 2156 /* look in bgp pbr rule */
2157 bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique);
2158 if (!bgp_pbr && note != ZAPI_RULE_REMOVED) {
2159 if (BGP_DEBUG(zebra, ZEBRA))
2160 zlog_debug("%s: Fail to look BGP rule (%u)",
15569c58 2161 __func__, unique);
ffee150e
PG		 2162 return 0;
2163 }
30d50e6d
PG		 2164 }
2165
2166 switch (note) {
2167 case ZAPI_RULE_FAIL_INSTALL:
2168 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2169 zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__);
ffee150e
PG		 2170 if (bgp_pbra) {
2171 bgp_pbra->installed = false;
2172 bgp_pbra->install_in_progress = false;
2173 } else {
2174 bgp_pbr->installed = false;
2175 bgp_pbr->install_in_progress = false;
2176 }
30d50e6d
PG		 2177 break;
2178 case ZAPI_RULE_INSTALLED:
ffee150e
PG		 2179 if (bgp_pbra) {
2180 bgp_pbra->installed = true;
2181 bgp_pbra->install_in_progress = false;
2182 } else {
ce3c0614
PG		 2183 struct bgp_path_info *path;
2184 struct bgp_path_info_extra *extra;
2185
ffee150e
PG		 2186 bgp_pbr->installed = true;
2187 bgp_pbr->install_in_progress = false;
2188 bgp_pbr->action->refcnt++;
ce3c0614
PG		 2189 /* link bgp_info to bgp_pbr */
2190 path = (struct bgp_path_info *)bgp_pbr->path;
2191 extra = bgp_path_info_extra_get(path);
f5925234
PG		 2192 listnode_add_force(&extra->bgp_fs_iprule,
2193 bgp_pbr);
ffee150e 2194 }
30d50e6d 2195 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2196 zlog_debug("%s: Received RULE_INSTALLED", __func__);
30d50e6d 2197 break;
f18a08f5 2198 case ZAPI_RULE_FAIL_REMOVE:
30d50e6d
PG		 2199 case ZAPI_RULE_REMOVED:
2200 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2201 zlog_debug("%s: Received RULE REMOVED", __func__);
30d50e6d
PG		 2202 break;
2203 }
2204
2205 return 0;
2206}
2207
121f9dee 2208static int ipset_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2209{
2210 uint32_t unique;
2211 enum zapi_ipset_notify_owner note;
2212 struct bgp_pbr_match *bgp_pbim;
2213
2214 if (!zapi_ipset_notify_decode(zclient->ibuf,
2215 &unique,
2216 &note))
2217 return -1;
2218
2219 bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique);
2220 if (!bgp_pbim) {
2221 if (BGP_DEBUG(zebra, ZEBRA))
88055124 2222 zlog_debug("%s: Fail to look BGP match ( %u, ID %u)",
15569c58 2223 __func__, note, unique);
30d50e6d
PG		 2224 return 0;
2225 }
2226
2227 switch (note) {
2228 case ZAPI_IPSET_FAIL_INSTALL:
2229 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2230 zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__);
30d50e6d
PG		 2231 bgp_pbim->installed = false;
2232 bgp_pbim->install_in_progress = false;
2233 break;
2234 case ZAPI_IPSET_INSTALLED:
2235 bgp_pbim->installed = true;
2236 bgp_pbim->install_in_progress = false;
2237 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2238 zlog_debug("%s: Received IPSET_INSTALLED", __func__);
30d50e6d 2239 break;
f18a08f5 2240 case ZAPI_IPSET_FAIL_REMOVE:
30d50e6d
PG		 2241 case ZAPI_IPSET_REMOVED:
2242 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2243 zlog_debug("%s: Received IPSET REMOVED", __func__);
30d50e6d
PG		 2244 break;
2245 }
2246
2247 return 0;
2248}
2249
121f9dee 2250static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2251{
2252 uint32_t unique;
2253 char ipset_name[ZEBRA_IPSET_NAME_SIZE];
2254 enum zapi_ipset_entry_notify_owner note;
2255 struct bgp_pbr_match_entry *bgp_pbime;
2256
2257 if (!zapi_ipset_entry_notify_decode(
2258 zclient->ibuf,
2259 &unique,
2260 ipset_name,
2261 &note))
2262 return -1;
2263 bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id,
2264 ipset_name,
2265 unique);
2266 if (!bgp_pbime) {
2267 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2268 zlog_debug(
2269 "%s: Fail to look BGP match entry (%u, ID %u)",
2270 __func__, note, unique);
30d50e6d
PG		 2271 return 0;
2272 }
2273
2274 switch (note) {
2275 case ZAPI_IPSET_ENTRY_FAIL_INSTALL:
2276 if (BGP_DEBUG(zebra, ZEBRA))
2277 zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL",
15569c58 2278 __func__);
30d50e6d
PG		 2279 bgp_pbime->installed = false;
2280 bgp_pbime->install_in_progress = false;
2281 break;
2282 case ZAPI_IPSET_ENTRY_INSTALLED:
b588b642 2283 {
9b6d8fcf 2284 struct bgp_path_info *path;
4b7e6066
DS		 2285 struct bgp_path_info_extra *extra;
2286
2287 bgp_pbime->installed = true;
2288 bgp_pbime->install_in_progress = false;
2289 if (BGP_DEBUG(zebra, ZEBRA))
2290 zlog_debug("%s: Received IPSET_ENTRY_INSTALLED",
15569c58 2291 __func__);
9b6d8fcf
DS		 2292 /* link bgp_path_info to bpme */
2293 path = (struct bgp_path_info *)bgp_pbime->path;
2294 extra = bgp_path_info_extra_get(path);
f5925234 2295 listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime);
b588b642 2296 }
30d50e6d 2297 break;
f18a08f5 2298 case ZAPI_IPSET_ENTRY_FAIL_REMOVE:
30d50e6d
PG		 2299 case ZAPI_IPSET_ENTRY_REMOVED:
2300 if (BGP_DEBUG(zebra, ZEBRA))
2301 zlog_debug("%s: Received IPSET_ENTRY_REMOVED",
15569c58 2302 __func__);
30d50e6d
PG		 2303 break;
2304 }
2305 return 0;
2306}
2307
121f9dee 2308static int iptable_notify_owner(ZAPI_CALLBACK_ARGS)
c16a0a62
PG		 2309{
2310 uint32_t unique;
2311 enum zapi_iptable_notify_owner note;
2312 struct bgp_pbr_match *bgpm;
2313
2314 if (!zapi_iptable_notify_decode(
2315 zclient->ibuf,
2316 &unique,
2317 &note))
2318 return -1;
2319 bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique);
2320 if (!bgpm) {
2321 if (BGP_DEBUG(zebra, ZEBRA))
82e194ed 2322 zlog_debug("%s: Fail to look BGP iptable (%u %u)",
15569c58 2323 __func__, note, unique);
c16a0a62
PG		 2324 return 0;
2325 }
2326 switch (note) {
2327 case ZAPI_IPTABLE_FAIL_INSTALL:
2328 if (BGP_DEBUG(zebra, ZEBRA))
2329 zlog_debug("%s: Received IPTABLE_FAIL_INSTALL",
15569c58 2330 __func__);
c16a0a62
PG		 2331 bgpm->installed_in_iptable = false;
2332 bgpm->install_iptable_in_progress = false;
2333 break;
2334 case ZAPI_IPTABLE_INSTALLED:
2335 bgpm->installed_in_iptable = true;
2336 bgpm->install_iptable_in_progress = false;
2337 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2338 zlog_debug("%s: Received IPTABLE_INSTALLED", __func__);
a6b07429 2339 bgpm->action->refcnt++;
c16a0a62 2340 break;
f18a08f5 2341 case ZAPI_IPTABLE_FAIL_REMOVE:
c16a0a62
PG		 2342 case ZAPI_IPTABLE_REMOVED:
2343 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2344 zlog_debug("%s: Received IPTABLE REMOVED", __func__);
c16a0a62
PG		 2345 break;
2346 }
2347 return 0;
2348}
2349
6cfe5d15
PG		 2350/* this function is used to forge ip rule,
2351 * - either for iptable/ipset using fwmark id
121f9dee 2352 * - or for sample ip rule cmd
6cfe5d15 2353 */
30d50e6d 2354static void bgp_encode_pbr_rule_action(struct stream *s,
6cfe5d15
PG		 2355 struct bgp_pbr_action *pbra,
2356 struct bgp_pbr_rule *pbr)
30d50e6d 2357{
6cfe5d15 2358 struct prefix pfx;
30d50e6d
PG		 2359
2360 stream_putl(s, 0); /* seqno unused */
8112a7a0
PG		 2361 if (pbr)
2362 stream_putl(s, pbr->priority);
2363 else
2364 stream_putl(s, 0);
2365 /* ruleno unused - priority change
2366 * ruleno permits distinguishing various FS PBR entries
2367 * - FS PBR entries based on ipset/iptables
2368 * - FS PBR entries based on iprule
2369 * the latter may contain default routing information injected by FS
2370 */
6cfe5d15
PG		 2371 if (pbr)
2372 stream_putl(s, pbr->unique);
2373 else
2374 stream_putl(s, pbra->unique);
2375 if (pbr && pbr->flags & MATCH_IP_SRC_SET)
2376 memcpy(&pfx, &(pbr->src), sizeof(struct prefix));
2377 else {
2378 memset(&pfx, 0, sizeof(pfx));
2379 pfx.family = AF_INET;
2380 }
2381 stream_putc(s, pfx.family);
2382 stream_putc(s, pfx.prefixlen);
2383 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2384
2385 stream_putw(s, 0); /* src port */
2386
6cfe5d15
PG		 2387 if (pbr && pbr->flags & MATCH_IP_DST_SET)
2388 memcpy(&pfx, &(pbr->dst), sizeof(struct prefix));
2389 else {
2390 memset(&pfx, 0, sizeof(pfx));
2391 pfx.family = AF_INET;
2392 }
2393 stream_putc(s, pfx.family);
2394 stream_putc(s, pfx.prefixlen);
2395 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2396
2397 stream_putw(s, 0); /* dst port */
2398
6cfe5d15
PG		 2399 /* if pbr present, fwmark is not used */
2400 if (pbr)
2401 stream_putl(s, 0);
2402 else
2403 stream_putl(s, pbra->fwmark); /* fwmark */
30d50e6d
PG		 2404
2405 stream_putl(s, pbra->table_id);
2406
2407 stream_putl(s, 0); /* ifindex unused */
2408}
2409
2410static void bgp_encode_pbr_ipset_match(struct stream *s,
2411 struct bgp_pbr_match *pbim)
2412{
2413 stream_putl(s, pbim->unique);
2414 stream_putl(s, pbim->type);
2415
2416 stream_put(s, pbim->ipset_name,
2417 ZEBRA_IPSET_NAME_SIZE);
30d50e6d
PG		 2418}
2419
2420static void bgp_encode_pbr_ipset_entry_match(struct stream *s,
2421 struct bgp_pbr_match_entry *pbime)
2422{
2423 stream_putl(s, pbime->unique);
2424 /* check that back pointer is not null */
2425 stream_put(s, pbime->backpointer->ipset_name,
2426 ZEBRA_IPSET_NAME_SIZE);
2427
2428 stream_putc(s, pbime->src.family);
2429 stream_putc(s, pbime->src.prefixlen);
2430 stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src));
2431
2432 stream_putc(s, pbime->dst.family);
2433 stream_putc(s, pbime->dst.prefixlen);
2434 stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst));
f730e566
PG		 2435
2436 stream_putw(s, pbime->src_port_min);
2437 stream_putw(s, pbime->src_port_max);
2438 stream_putw(s, pbime->dst_port_min);
2439 stream_putw(s, pbime->dst_port_max);
2440 stream_putc(s, pbime->proto);
30d50e6d
PG		 2441}
2442
c16a0a62
PG		 2443static void bgp_encode_pbr_iptable_match(struct stream *s,
2444 struct bgp_pbr_action *bpa,
2445 struct bgp_pbr_match *pbm)
2446{
2447 stream_putl(s, pbm->unique2);
2448
2449 stream_putl(s, pbm->type);
2450
2451 stream_putl(s, pbm->flags);
2452
2453 /* TODO: correlate with what is contained
2454 * into bgp_pbr_action.
2455 * currently only forward supported
2456 */
2457 if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE)
2458 stream_putl(s, ZEBRA_IPTABLES_DROP);
2459 else
2460 stream_putl(s, ZEBRA_IPTABLES_FORWARD);
2461 stream_putl(s, bpa->fwmark);
2462 stream_put(s, pbm->ipset_name,
2463 ZEBRA_IPSET_NAME_SIZE);
83360720
PG		 2464 stream_putw(s, pbm->pkt_len_min);
2465 stream_putw(s, pbm->pkt_len_max);
2da7d62e
PG		 2466 stream_putw(s, pbm->tcp_flags);
2467 stream_putw(s, pbm->tcp_mask_flags);
4977bd6c 2468 stream_putc(s, pbm->dscp_value);
6f5617d8 2469 stream_putc(s, pbm->fragment);
f449d223 2470 stream_putc(s, pbm->protocol);
c16a0a62
PG		 2471}
2472
ad4cbda1 2473/* BGP has established connection with Zebra. */
d62a17ae 2474static void bgp_zebra_connected(struct zclient *zclient)
7076bb2f 2475{
d62a17ae 2476 struct bgp *bgp;
7076bb2f 2477
d62a17ae 2478 zclient_num_connects++; /* increment even if not responding */
afbb1c59 2479
d62a17ae 2480 /* At this point, we may or may not have BGP instances configured, but
2481 * we're only interested in the default VRF (others wouldn't have learnt
2482 * the VRF from Zebra yet.)
2483 */
2484 bgp = bgp_get_default();
2485 if (!bgp)
2486 return;
ad4cbda1 2487
d62a17ae 2488 bgp_zebra_instance_register(bgp);
ad4cbda1 2489
d62a17ae 2490 /* Send the client registration */
0945d5ed 2491 bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, bgp->vrf_id);
2376c3f2 2492
955bfd98 2493 /* tell label pool that zebra is connected */
e70e9f8e 2494 bgp_lp_event_zebra_up();
955bfd98 2495
d62a17ae 2496 /* TODO - What if we have peers and networks configured, do we have to
2497 * kick-start them?
2498 */
85ef4179 2499 BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer);
7076bb2f
FL		 2500}
2501
c44ab6f1
AK		 2502static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS)
2503{
2504 esi_t esi;
2505 struct bgp *bgp = NULL;
2506 struct stream *s = NULL;
2507 char buf[ESI_STR_LEN];
2508 struct in_addr originator_ip;
2509 uint8_t active;
2510
2511 bgp = bgp_lookup_by_vrf_id(vrf_id);
2512 if (!bgp)
2513 return 0;
2514
2515 s = zclient->ibuf;
2516 stream_get(&esi, s, sizeof(esi_t));
2517 originator_ip.s_addr = stream_get_ipv4(s);
2518 active = stream_getc(s);
2519
2520 if (BGP_DEBUG(zebra, ZEBRA))
2521 zlog_debug("Rx add ESI %s originator-ip %s active %u",
2522 esi_to_str(&esi, buf, sizeof(buf)),
2523 inet_ntoa(originator_ip),
2524 active);
2525
2526 bgp_evpn_local_es_add(bgp, &esi, originator_ip, active);
2527
2528 return 0;
2529}
2530
2531static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS)
50f74cf1 2532{
2533 esi_t esi;
2534 struct bgp *bgp = NULL;
2535 struct stream *s = NULL;
2536 char buf[ESI_STR_LEN];
50f74cf1 2537
2538 memset(&esi, 0, sizeof(esi_t));
c44ab6f1
AK		 2539 bgp = bgp_lookup_by_vrf_id(vrf_id);
2540 if (!bgp)
2541 return 0;
2542
2543 s = zclient->ibuf;
2544 stream_get(&esi, s, sizeof(esi_t));
2545
2546 if (BGP_DEBUG(zebra, ZEBRA))
2547 zlog_debug("Rx del ESI %s",
2548 esi_to_str(&esi, buf, sizeof(buf)));
2549
2550 bgp_evpn_local_es_del(bgp, &esi);
2551
2552 return 0;
2553}
2554
2555static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS)
2556{
2557 esi_t esi;
2558 vni_t vni;
2559 struct bgp *bgp;
2560 struct stream *s;
2561 char buf[ESI_STR_LEN];
50f74cf1 2562
2563 bgp = bgp_lookup_by_vrf_id(vrf_id);
2564 if (!bgp)
2565 return 0;
2566
2567 s = zclient->ibuf;
2568 stream_get(&esi, s, sizeof(esi_t));
c44ab6f1 2569 vni = stream_getl(s);
50f74cf1 2570
2571 if (BGP_DEBUG(zebra, ZEBRA))
c44ab6f1
AK		 2572 zlog_debug("Rx %s ESI %s VNI %u",
2573 ZEBRA_VNI_ADD ? "add" : "del",
2574 esi_to_str(&esi, buf, sizeof(buf)), vni);
50f74cf1 2575
c44ab6f1
AK		 2576 if (cmd == ZEBRA_LOCAL_ES_EVI_ADD)
2577 bgp_evpn_local_es_evi_add(bgp, &esi, vni);
50f74cf1 2578 else
c44ab6f1
AK		 2579 bgp_evpn_local_es_evi_del(bgp, &esi, vni);
2580
50f74cf1 2581 return 0;
2582}
2583
121f9dee 2584static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS)
fe1dc5a3 2585{
c48d9f5f 2586 int filter = 0;
fe1dc5a3 2587 char buf[ETHER_ADDR_STRLEN];
b67a60d2 2588 vni_t l3vni = 0;
14e814ea 2589 struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} };
b67a60d2 2590 struct in_addr originator_ip;
fe1dc5a3 2591 struct stream *s;
0483af6e 2592 ifindex_t svi_ifindex;
14e814ea
CS		 2593 bool is_anycast_mac = false;
2594 char buf1[ETHER_ADDR_STRLEN];
fe1dc5a3 2595
14e814ea 2596 memset(&svi_rmac, 0, sizeof(struct ethaddr));
b67a60d2 2597 memset(&originator_ip, 0, sizeof(struct in_addr));
fe1dc5a3
MK		 2598 s = zclient->ibuf;
2599 l3vni = stream_getl(s);
b67a60d2 2600 if (cmd == ZEBRA_L3VNI_ADD) {
14e814ea 2601 stream_get(&svi_rmac, s, sizeof(struct ethaddr));
b67a60d2 2602 originator_ip.s_addr = stream_get_ipv4(s);
c48d9f5f 2603 stream_get(&filter, s, sizeof(int));
0483af6e 2604 svi_ifindex = stream_getl(s);
14e814ea
CS		 2605 stream_get(&vrr_rmac, s, sizeof(struct ethaddr));
2606 is_anycast_mac = stream_getl(s);
fe1dc5a3 2607
0483af6e 2608 if (BGP_DEBUG(zebra, ZEBRA))
14e814ea 2609 zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %s vrr-mac %s filter %s svi-if %u",
0483af6e 2610 vrf_id_to_name(vrf_id), l3vni,
14e814ea
CS		 2611 prefix_mac2str(&svi_rmac, buf, sizeof(buf)),
2612 prefix_mac2str(&vrr_rmac, buf1,
2613 sizeof(buf1)),
0483af6e 2614 filter ? "prefix-routes-only" : "none",
2615 svi_ifindex);
fe1dc5a3 2616
14e814ea
CS		 2617 bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac,
2618 originator_ip, filter, svi_ifindex,
2619 is_anycast_mac);
0483af6e 2620 } else {
2621 if (BGP_DEBUG(zebra, ZEBRA))
2622 zlog_debug("Rx L3-VNI DEL VRF %s VNI %u",
2623 vrf_id_to_name(vrf_id), l3vni);
2624
fe1dc5a3 2625 bgp_evpn_local_l3vni_del(l3vni, vrf_id);
0483af6e 2626 }
fe1dc5a3
MK		 2627
2628 return 0;
2629}
2630
121f9dee 2631static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS)
128ea8ab 2632{
d62a17ae 2633 struct stream *s;
2634 vni_t vni;
2635 struct bgp *bgp;
a4d82a8a 2636 struct in_addr vtep_ip = {INADDR_ANY};
29c53922 2637 vrf_id_t tenant_vrf_id = VRF_DEFAULT;
76d07c7a 2638 struct in_addr mcast_grp = {INADDR_ANY};
d62a17ae 2639
2640 s = zclient->ibuf;
2641 vni = stream_getl(s);
121f9dee 2642 if (cmd == ZEBRA_VNI_ADD) {
d62a17ae 2643 vtep_ip.s_addr = stream_get_ipv4(s);
29c53922 2644 stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t));
76d07c7a 2645 mcast_grp.s_addr = stream_get_ipv4(s);
29c53922
MK		 2646 }
2647
d62a17ae 2648 bgp = bgp_lookup_by_vrf_id(vrf_id);
2649 if (!bgp)
2650 return 0;
2651
2652 if (BGP_DEBUG(zebra, ZEBRA))
29c53922 2653 zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s",
121f9dee 2654 (cmd == ZEBRA_VNI_ADD) ? "add" : "del",
a4d82a8a
PZ		 2655 vrf_id_to_name(vrf_id), vni,
2656 vrf_id_to_name(tenant_vrf_id));
d62a17ae 2657
121f9dee 2658 if (cmd == ZEBRA_VNI_ADD)
d62a17ae 2659 return bgp_evpn_local_vni_add(
975a328e
DA		 2660 bgp, vni,
2661 vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id,
76d07c7a 2662 tenant_vrf_id, mcast_grp);
d62a17ae 2663 else
2664 return bgp_evpn_local_vni_del(bgp, vni);
128ea8ab 2665}
2666
121f9dee 2667static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS)
128ea8ab 2668{
d62a17ae 2669 struct stream *s;
2670 vni_t vni;
2671 struct bgp *bgp;
2672 struct ethaddr mac;
2673 struct ipaddr ip;
2674 int ipa_len;
2675 char buf[ETHER_ADDR_STRLEN];
2676 char buf1[INET6_ADDRSTRLEN];
f07e1c99 2677 uint8_t flags = 0;
2678 uint32_t seqnum = 0;
ec0ab544 2679 int state = 0;
c44ab6f1
AK		 2680 char buf2[ESI_STR_LEN];
2681 esi_t esi;
d62a17ae 2682
2683 memset(&ip, 0, sizeof(ip));
2684 s = zclient->ibuf;
2685 vni = stream_getl(s);
28328ea9 2686 stream_get(&mac.octet, s, ETH_ALEN);
d62a17ae 2687 ipa_len = stream_getl(s);
2688 if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN
2689 && ipa_len != IPV6_MAX_BYTELEN) {
e50f7cfd 2690 flog_err(EC_BGP_MACIP_LEN,
1c50c1c0 2691 "%u:Recv MACIP %s with invalid IP addr length %d",
121f9dee 2692 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del",
1c50c1c0 2693 ipa_len);
d62a17ae 2694 return -1;
2695 }
2696
2697 if (ipa_len) {
2698 ip.ipa_type =
2699 (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6;
2700 stream_get(&ip.ip.addr, s, ipa_len);
2701 }
121f9dee 2702 if (cmd == ZEBRA_MACIP_ADD) {
f07e1c99 2703 flags = stream_getc(s);
2704 seqnum = stream_getl(s);
c44ab6f1 2705 stream_get(&esi, s, sizeof(esi_t));
ec0ab544
AK		 2706 } else {
2707 state = stream_getl(s);
f07e1c99 2708 }
d62a17ae 2709
2710 bgp = bgp_lookup_by_vrf_id(vrf_id);
2711 if (!bgp)
2712 return 0;
2713
2714 if (BGP_DEBUG(zebra, ZEBRA))
c44ab6f1 2715 zlog_debug("%u:Recv MACIP %s f 0x%x MAC %s IP %s VNI %u seq %u state %d ESI %s",
121f9dee 2716 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del",
1a98c087 2717 flags, prefix_mac2str(&mac, buf, sizeof(buf)),
ec0ab544 2718 ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum,
c44ab6f1 2719 state, esi_to_str(&esi, buf2, sizeof(buf2)));
d62a17ae 2720
121f9dee 2721 if (cmd == ZEBRA_MACIP_ADD)
f07e1c99 2722 return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip,
c44ab6f1 2723 flags, seqnum, &esi);
d62a17ae 2724 else
ec0ab544 2725 return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state);
128ea8ab 2726}
6aeb9e78 2727
121f9dee 2728static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS)
31310b25
MK		 2729{
2730 struct stream *s = NULL;
2731 struct bgp *bgp_vrf = NULL;
2732 struct prefix p;
2733 char buf[PREFIX_STRLEN];
2734
2735 memset(&p, 0, sizeof(struct prefix));
2736 s = zclient->ibuf;
2737 stream_get(&p, s, sizeof(struct prefix));
2738
2739 bgp_vrf = bgp_lookup_by_vrf_id(vrf_id);
2740 if (!bgp_vrf)
2741 return;
2742
2743 if (BGP_DEBUG(zebra, ZEBRA))
2744 zlog_debug("Recv prefix %s %s on vrf %s",
2745 prefix2str(&p, buf, sizeof(buf)),
2746 (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL",
2747 vrf_id_to_name(vrf_id));
2748
2749 if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) {
2750
2751 if (p.family == AF_INET)
d90b788e
A		 2752 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
2753 AFI_IP, SAFI_UNICAST);
31310b25 2754 else
d90b788e
A		 2755 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
2756 AFI_IP6, SAFI_UNICAST);
31310b25
MK		 2757
2758 } else {
2759 if (p.family == AF_INET)
d90b788e
A		 2760 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP,
2761 SAFI_UNICAST);
31310b25 2762 else
d90b788e
A		 2763 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6,
2764 SAFI_UNICAST);
31310b25
MK		 2765 }
2766}
2767
121f9dee 2768static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS)
955bfd98
PZ		 2769{
2770 struct stream *s = NULL;
2771 uint8_t response_keep;
2772 uint32_t first;
2773 uint32_t last;
aec865e4
FR		 2774 uint8_t proto;
2775 unsigned short instance;
955bfd98
PZ		 2776
2777 s = zclient->ibuf;
aec865e4
FR		 2778 STREAM_GETC(s, proto);
2779 STREAM_GETW(s, instance);
955bfd98
PZ		 2780 STREAM_GETC(s, response_keep);
2781 STREAM_GETL(s, first);
2782 STREAM_GETL(s, last);
2783
aec865e4 2784 if (zclient->redist_default != proto) {
e50f7cfd 2785 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u",
1c50c1c0 2786 proto);
aec865e4
FR		 2787 return;
2788 }
2789 if (zclient->instance != instance) {
e50f7cfd 2790 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u",
1c50c1c0 2791 proto);
aec865e4
FR		 2792 return;
2793 }
2794
955bfd98
PZ		 2795 if (first > last ||
2796 first < MPLS_LABEL_UNRESERVED_MIN ||
2797 last > MPLS_LABEL_UNRESERVED_MAX) {
2798
e50f7cfd 2799 flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u",
1c50c1c0 2800 __func__, first, last);
955bfd98
PZ		 2801 return;
2802 }
2803 if (BGP_DEBUG(zebra, ZEBRA)) {
2804 zlog_debug("Label Chunk assign: %u - %u (%u) ",
2805 first, last, response_keep);
2806 }
2807
e70e9f8e 2808 bgp_lp_event_chunk(response_keep, first, last);
955bfd98
PZ		 2809
2810stream_failure: /* for STREAM_GETX */
2811 return;
2812}
2813
342213ea
DS		 2814extern struct zebra_privs_t bgpd_privs;
2815
138c5a74
DS		 2816static int bgp_ifp_create(struct interface *ifp)
2817{
ef7bd2a3
DS		 2818 struct bgp *bgp;
2819
2820 if (BGP_DEBUG(zebra, ZEBRA))
2821 zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name);
2822
2823 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
2824 if (!bgp)
2825 return 0;
2826
2827 bgp_mac_add_mac_entry(ifp);
2828
2829 bgp_update_interface_nbrs(bgp, ifp, ifp);
138c5a74
DS		 2830 return 0;
2831}
2832
f533be73 2833void bgp_zebra_init(struct thread_master *master, unsigned short instance)
718e3744 2834{
d62a17ae 2835 zclient_num_connects = 0;
2836
138c5a74
DS		 2837 if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up,
2838 bgp_ifp_down, bgp_ifp_destroy);
2839
d62a17ae 2840 /* Set default values. */
26f63a1e 2841 zclient = zclient_new(master, &zclient_options_default);
342213ea 2842 zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs);
d62a17ae 2843 zclient->zebra_connected = bgp_zebra_connected;
2844 zclient->router_id_update = bgp_router_id_update;
d62a17ae 2845 zclient->interface_address_add = bgp_interface_address_add;
2846 zclient->interface_address_delete = bgp_interface_address_delete;
2847 zclient->interface_nbr_address_add = bgp_interface_nbr_address_add;
2848 zclient->interface_nbr_address_delete =
2849 bgp_interface_nbr_address_delete;
2850 zclient->interface_vrf_update = bgp_interface_vrf_update;
74489921
RW		 2851 zclient->redistribute_route_add = zebra_read_route;
2852 zclient->redistribute_route_del = zebra_read_route;
d62a17ae 2853 zclient->nexthop_update = bgp_read_nexthop_update;
2854 zclient->import_check_update = bgp_read_import_check_update;
2855 zclient->fec_update = bgp_read_fec_update;
c44ab6f1
AK		 2856 zclient->local_es_add = bgp_zebra_process_local_es_add;
2857 zclient->local_es_del = bgp_zebra_process_local_es_del;
d62a17ae 2858 zclient->local_vni_add = bgp_zebra_process_local_vni;
c44ab6f1
AK		 2859 zclient->local_es_evi_add = bgp_zebra_process_local_es_evi;
2860 zclient->local_es_evi_del = bgp_zebra_process_local_es_evi;
d62a17ae 2861 zclient->local_vni_del = bgp_zebra_process_local_vni;
2862 zclient->local_macip_add = bgp_zebra_process_local_macip;
2863 zclient->local_macip_del = bgp_zebra_process_local_macip;
fe1dc5a3
MK		 2864 zclient->local_l3vni_add = bgp_zebra_process_local_l3vni;
2865 zclient->local_l3vni_del = bgp_zebra_process_local_l3vni;
31310b25
MK		 2866 zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix;
2867 zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix;
955bfd98 2868 zclient->label_chunk = bgp_zebra_process_label_chunk;
30d50e6d
PG		 2869 zclient->rule_notify_owner = rule_notify_owner;
2870 zclient->ipset_notify_owner = ipset_notify_owner;
2871 zclient->ipset_entry_notify_owner = ipset_entry_notify_owner;
c16a0a62 2872 zclient->iptable_notify_owner = iptable_notify_owner;
f533be73 2873 zclient->instance = instance;
718e3744 2874}
bb86c601 2875
d62a17ae 2876void bgp_zebra_destroy(void)
bb86c601 2877{
d62a17ae 2878 if (zclient == NULL)
2879 return;
2880 zclient_stop(zclient);
2881 zclient_free(zclient);
2882 zclient = NULL;
bb86c601 2883}
afbb1c59 2884
d62a17ae 2885int bgp_zebra_num_connects(void)
afbb1c59 2886{
d62a17ae 2887 return zclient_num_connects;
afbb1c59 2888}
30d50e6d 2889
6cfe5d15
PG		 2890void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra,
2891 struct bgp_pbr_rule *pbr,
2892 bool install)
30d50e6d
PG		 2893{
2894 struct stream *s;
2895
6cfe5d15 2896 if (pbra->install_in_progress && !pbr)
30d50e6d 2897 return;
6cfe5d15
PG		 2898 if (pbr && pbr->install_in_progress)
2899 return;
2900 if (BGP_DEBUG(zebra, ZEBRA)) {
2901 if (pbr)
15569c58 2902 zlog_debug("%s: table %d (ip rule) %d", __func__,
6cfe5d15
PG		 2903 pbra->table_id, install);
2904 else
15569c58 2905 zlog_debug("%s: table %d fwmark %d %d", __func__,
6cfe5d15
PG		 2906 pbra->table_id, pbra->fwmark, install);
2907 }
30d50e6d
PG		 2908 s = zclient->obuf;
2909 stream_reset(s);
2910
2911 zclient_create_header(s,
2912 install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE,
2913 VRF_DEFAULT);
2914 stream_putl(s, 1); /* send one pbr action */
2915
6cfe5d15 2916 bgp_encode_pbr_rule_action(s, pbra, pbr);
30d50e6d
PG		 2917
2918 stream_putw_at(s, 0, stream_get_endp(s));
6cfe5d15
PG		 2919 if (!zclient_send_message(zclient) && install) {
2920 if (!pbr)
2921 pbra->install_in_progress = true;
2922 else
2923 pbr->install_in_progress = true;
2924 }
30d50e6d
PG		 2925}
2926
2927void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install)
2928{
2929 struct stream *s;
2930
2931 if (pbrim->install_in_progress)
2932 return;
f0936054 2933 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2934 zlog_debug("%s: name %s type %d %d, ID %u", __func__,
2935 pbrim->ipset_name, pbrim->type, install,
2936 pbrim->unique);
30d50e6d
PG		 2937 s = zclient->obuf;
2938 stream_reset(s);
2939
2940 zclient_create_header(s,
2941 install ? ZEBRA_IPSET_CREATE :
2942 ZEBRA_IPSET_DESTROY,
2943 VRF_DEFAULT);
2944
2945 stream_putl(s, 1); /* send one pbr action */
2946
2947 bgp_encode_pbr_ipset_match(s, pbrim);
2948
2949 stream_putw_at(s, 0, stream_get_endp(s));
2950 if (!zclient_send_message(zclient) && install)
2951 pbrim->install_in_progress = true;
2952}
2953
2954void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime,
2955 bool install)
2956{
2957 struct stream *s;
2958
2959 if (pbrime->install_in_progress)
2960 return;
f0936054 2961 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2962 zlog_debug("%s: name %s %d %d, ID %u", __func__,
2963 pbrime->backpointer->ipset_name, pbrime->unique,
2964 install, pbrime->unique);
30d50e6d
PG		 2965 s = zclient->obuf;
2966 stream_reset(s);
2967
2968 zclient_create_header(s,
2969 install ? ZEBRA_IPSET_ENTRY_ADD :
2970 ZEBRA_IPSET_ENTRY_DELETE,
2971 VRF_DEFAULT);
2972
2973 stream_putl(s, 1); /* send one pbr action */
2974
2975 bgp_encode_pbr_ipset_entry_match(s, pbrime);
2976
2977 stream_putw_at(s, 0, stream_get_endp(s));
2978 if (!zclient_send_message(zclient) && install)
2979 pbrime->install_in_progress = true;
2980}
c16a0a62 2981
4762c213
PG		 2982static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s)
2983{
2984 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
2985 struct bgp_pbr_interface_head *head;
2986 struct bgp_pbr_interface *pbr_if;
2987 struct interface *ifp;
2988
2989 if (!bgp_pbr_cfg)
2990 return;
2991 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
2992
2993 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 2994 ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id);
4762c213
PG		 2995 if (ifp)
2996 stream_putl(s, ifp->ifindex);
2997 }
2998}
2999
3000static int bgp_pbr_get_ifnumber(struct bgp *bgp)
3001{
3002 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
3003 struct bgp_pbr_interface_head *head;
3004 struct bgp_pbr_interface *pbr_if;
3005 int cnt = 0;
3006
3007 if (!bgp_pbr_cfg)
3008 return 0;
3009 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
3010
3011 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 3012 if (if_lookup_by_name(pbr_if->name, bgp->vrf_id))
4762c213
PG		 3013 cnt++;
3014 }
3015 return cnt;
3016}
3017
c16a0a62
PG		 3018void bgp_send_pbr_iptable(struct bgp_pbr_action *pba,
3019 struct bgp_pbr_match *pbm,
3020 bool install)
3021{
3022 struct stream *s;
b5c40105 3023 int ret = 0;
4762c213 3024 int nb_interface;
c16a0a62
PG		 3025
3026 if (pbm->install_iptable_in_progress)
3027 return;
f0936054 3028 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3029 zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__,
3030 pbm->ipset_name, pbm->type, pba->fwmark, install,
88055124 3031 pbm->unique2);
c16a0a62
PG		 3032 s = zclient->obuf;
3033 stream_reset(s);
3034
3035 zclient_create_header(s,
3036 install ? ZEBRA_IPTABLE_ADD :
3037 ZEBRA_IPTABLE_DELETE,
3038 VRF_DEFAULT);
3039
3040 bgp_encode_pbr_iptable_match(s, pba, pbm);
4762c213
PG		 3041 nb_interface = bgp_pbr_get_ifnumber(pba->bgp);
3042 stream_putl(s, nb_interface);
3043 if (nb_interface)
3044 bgp_encode_pbr_interface_list(pba->bgp, s);
c16a0a62 3045 stream_putw_at(s, 0, stream_get_endp(s));
b5c40105
PG		 3046 ret = zclient_send_message(zclient);
3047 if (install) {
3048 if (ret)
3049 pba->refcnt++;
3050 else
3051 pbm->install_iptable_in_progress = true;
a6b07429 3052 }
c16a0a62 3053}
f7df1907
PG		 3054
3055/* inject in table <table_id> a default route to:
3056 * - if nexthop IP is present : to this nexthop
3057 * - if vrf is different from local : to the matching VRF
3058 */
3059void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh,
3060 afi_t afi, uint32_t table_id, bool announce)
3061{
3062 struct zapi_nexthop *api_nh;
3063 struct zapi_route api;
3064 struct prefix p;
3065
3066 if (!nh || nh->type != NEXTHOP_TYPE_IPV4
3067 || nh->vrf_id == VRF_UNKNOWN)
3068 return;
3069 memset(&p, 0, sizeof(struct prefix));
3070 /* default route */
3071 if (afi != AFI_IP)
3072 return;
3073 p.family = AF_INET;
3074 memset(&api, 0, sizeof(api));
3075 api.vrf_id = bgp->vrf_id;
3076 api.type = ZEBRA_ROUTE_BGP;
3077 api.safi = SAFI_UNICAST;
3078 api.prefix = p;
3079 api.tableid = table_id;
3080 api.nexthop_num = 1;
3081 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
3082 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
3083 api_nh = &api.nexthops[0];
3084
38a8c751
DS		 3085 api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT;
3086 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
3087
f7df1907 3088 /* redirect IP */
975a328e 3089 if (nh->gate.ipv4.s_addr != INADDR_ANY) {
f7df1907
PG		 3090 char buff[PREFIX_STRLEN];
3091
3092 api_nh->vrf_id = nh->vrf_id;
3093 api_nh->gate.ipv4 = nh->gate.ipv4;
3094 api_nh->type = NEXTHOP_TYPE_IPV4;
3095
3096 inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN);
3097 if (BGP_DEBUG(zebra, ZEBRA))
d887503c
PG		 3098 zlog_info("BGP: %s default route to %s table %d (redirect IP)",
3099 announce ? "adding" : "withdrawing",
f7df1907
PG		 3100 buff, table_id);
3101 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3102 : ZEBRA_ROUTE_DELETE,
3103 zclient, &api);
3104 } else if (nh->vrf_id != bgp->vrf_id) {
3105 struct vrf *vrf;
eb4244f8 3106 struct interface *ifp;
f7df1907 3107
eb4244f8 3108 vrf = vrf_lookup_by_id(nh->vrf_id);
f7df1907
PG		 3109 if (!vrf)
3110 return;
eb4244f8
PG		 3111 /* create default route with interface <VRF>
3112 * with nexthop-vrf <VRF>
f7df1907 3113 */
eb4244f8
PG		 3114 ifp = if_lookup_by_name_all_vrf(vrf->name);
3115 if (!ifp)
3116 return;
3117 api_nh->vrf_id = nh->vrf_id;
3118 api_nh->type = NEXTHOP_TYPE_IFINDEX;
3119 api_nh->ifindex = ifp->ifindex;
3120 if (BGP_DEBUG(zebra, ZEBRA))
d887503c
PG		 3121 zlog_info("BGP: %s default route to %s table %d (redirect VRF)",
3122 announce ? "adding" : "withdrawing",
eb4244f8
PG		 3123 vrf->name, table_id);
3124 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3125 : ZEBRA_ROUTE_DELETE,
3126 zclient, &api);
f7df1907
PG		 3127 return;
3128 }
3129}
85ef4179 3130
3131/* Send capabilities to RIB */
3132int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable)
3133{
3134 struct zapi_cap api;
3135 int ret = BGP_GR_SUCCESS;
3136
3137 if (zclient == NULL) {
3138 if (BGP_DEBUG(zebra, ZEBRA))
3139 zlog_debug("zclient invalid");
3140 return BGP_GR_FAILURE;
3141 }
3142
3143 /* Check if the client is connected */
3144 if ((zclient->sock < 0) || (zclient->t_connect)) {
3145 if (BGP_DEBUG(zebra, ZEBRA))
3146 zlog_debug("client not connected");
3147 return BGP_GR_FAILURE;
3148 }
3149
3150 /* Check if capability is already sent. If the flag force is set
3151 * send the capability since this can be initial bgp configuration
3152 */
3153 memset(&api, 0, sizeof(struct zapi_cap));
3154 if (disable) {
3155 api.cap = ZEBRA_CLIENT_GR_DISABLE;
3156 api.vrf_id = bgp->vrf_id;
3157 } else {
3158 api.cap = ZEBRA_CLIENT_GR_CAPABILITIES;
3159 api.stale_removal_time = bgp->rib_stale_time;
3160 api.vrf_id = bgp->vrf_id;
3161 }
3162
36235319
QY		 3163 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
3164 < 0) {
2ba1fe69 3165 zlog_err("error sending capability");
85ef4179 3166 ret = BGP_GR_FAILURE;
3167 } else {
3168 if (disable)
3169 bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE;
3170 else
3171 bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE;
3172
3173 if (BGP_DEBUG(zebra, ZEBRA))
3174 zlog_debug("send capabilty success");
3175 ret = BGP_GR_SUCCESS;
3176 }
3177 return ret;
3178}
3179
3180/* Send route update pesding or completed status to RIB for the
3181 * specific AFI, SAFI
3182 */
3183int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type)
3184{
2ba1fe69 3185 struct zapi_cap api = {0};
85ef4179 3186
3187 if (zclient == NULL) {
3188 if (BGP_DEBUG(zebra, ZEBRA))
2ba1fe69 3189 zlog_debug("zclient == NULL, invalid");
85ef4179 3190 return BGP_GR_FAILURE;
3191 }
3192
3193 /* Check if the client is connected */
3194 if ((zclient->sock < 0) || (zclient->t_connect)) {
3195 if (BGP_DEBUG(zebra, ZEBRA))
3196 zlog_debug("client not connected");
3197 return BGP_GR_FAILURE;
3198 }
3199
85ef4179 3200 api.afi = afi;
3201 api.safi = safi;
3202 api.vrf_id = vrf_id;
3203 api.cap = type;
3204
36235319
QY		 3205 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
3206 < 0) {
85ef4179 3207 if (BGP_DEBUG(zebra, ZEBRA))
3208 zlog_debug("error sending capability");
3209 return BGP_GR_FAILURE;
3210 }
3211 return BGP_GR_SUCCESS;
3212}
3213
3214
85ef4179 3215/* Send RIB stale timer update */
3216int bgp_zebra_stale_timer_update(struct bgp *bgp)
3217{
3218 struct zapi_cap api;
3219
3220 if (zclient == NULL) {
3221 if (BGP_DEBUG(zebra, ZEBRA))
3222 zlog_debug("zclient invalid");
3223 return BGP_GR_FAILURE;
3224 }
3225
3226 /* Check if the client is connected */
3227 if ((zclient->sock < 0) || (zclient->t_connect)) {
3228 if (BGP_DEBUG(zebra, ZEBRA))
3229 zlog_debug("client not connected");
3230 return BGP_GR_FAILURE;
3231 }
3232
3233 memset(&api, 0, sizeof(struct zapi_cap));
3234 api.cap = ZEBRA_CLIENT_RIB_STALE_TIME;
3235 api.stale_removal_time = bgp->rib_stale_time;
3236 api.vrf_id = bgp->vrf_id;
36235319
QY		 3237 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
3238 < 0) {
85ef4179 3239 if (BGP_DEBUG(zebra, ZEBRA))
3240 zlog_debug("error sending capability");
3241 return BGP_GR_FAILURE;
3242 }
3243 if (BGP_DEBUG(zebra, ZEBRA))
3244 zlog_debug("send capabilty success");
3245 return BGP_GR_SUCCESS;
3246}
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