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bgpd: add `%pBD` for printing `struct bgp_dest *`
[mirror_frr.git] / bgpd / bgp_zebra.c
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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 }
c2ca3e25
PG		 1147 if (nexthop)
1148 api_nh->gate.ipv6 = *nexthop;
77e62f2b 1149
3dc339cd 1150 return true;
77e62f2b 1151}
1152
f7e1c681 1153static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr,
1154 uint64_t tot_bw, uint32_t *nh_weight)
4e30bc2b 1155{
f7e1c681 1156 uint32_t bw;
1157 uint64_t tmp;
1158
1159 bw = attr->link_bw;
1160 /* zero link-bandwidth and link-bandwidth not present are treated
1161 * as the same situation.
1162 */
1163 if (!bw) {
1164 /* the only situations should be if we're either told
1165 * to skip or use default weight.
1166 */
1167 if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING)
1168 return false;
1169 *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT;
1170 } else {
1171 tmp = (uint64_t)bw * 100;
1172 *nh_weight = ((uint32_t)(tmp / tot_bw));
1173 }
1174
1175 return true;
4e30bc2b 1176}
1177
9bcb3eef 1178void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p,
4b7e6066 1179 struct bgp_path_info *info, struct bgp *bgp, afi_t afi,
d62a17ae 1180 safi_t safi)
718e3744 1181{
7cc27d41 1182 struct zapi_route api = { 0 };
9913029c 1183 struct zapi_nexthop *api_nh;
2ad4f093 1184 int nh_family;
a74e593b 1185 unsigned int valid_nh_count = 0;
2ad4f093 1186 int has_valid_label = 0;
d7c0a89a 1187 uint8_t distance;
d62a17ae 1188 struct peer *peer;
4b7e6066 1189 struct bgp_path_info *mpinfo;
d7c0a89a 1190 uint32_t metric;
b4cb15c6 1191 struct attr local_attr;
4b7e6066
DS		 1192 struct bgp_path_info local_info;
1193 struct bgp_path_info *mpinfo_cp = &local_info;
d62a17ae 1194 route_tag_t tag;
1195 mpls_label_t label;
ddb5b488 1196 int nh_othervrf = 0;
960035b2 1197 char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */
3f54c705 1198 bool is_evpn;
77e62f2b 1199 int nh_updated;
4e30bc2b 1200 bool do_wt_ecmp;
1201 uint64_t cum_bw = 0;
d62a17ae 1202
1203 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1204 * know of this instance.
1205 */
1206 if (!bgp_install_info_to_zebra(bgp))
1207 return;
1208
d62a17ae 1209 if (bgp->main_zebra_update_hold)
1210 return;
1211
960035b2 1212 if (bgp_debug_zebra(p))
ba1976db 1213 prefix2str(p, buf_prefix, sizeof(buf_prefix));
960035b2 1214
d90b788e 1215 if (safi == SAFI_FLOWSPEC) {
9bcb3eef
DS		 1216 bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi,
1217 safi, true);
d90b788e
A		 1218 return;
1219 }
529efa23 1220
ddb5b488
PZ		 1221 /*
1222 * vrf leaking support (will have only one nexthop)
1223 */
1224 if (info->extra && info->extra->bgp_orig)
1225 nh_othervrf = 1;
1226
9913029c 1227 /* Make Zebra API structure. */
9913029c
RW		 1228 api.vrf_id = bgp->vrf_id;
1229 api.type = ZEBRA_ROUTE_BGP;
1230 api.safi = safi;
1231 api.prefix = *p;
1232 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
1233
d62a17ae 1234 peer = info->peer;
1235
ddb5b488
PZ		 1236 if (info->type == ZEBRA_ROUTE_BGP
1237 && info->sub_type == BGP_ROUTE_IMPORTED) {
1238
1ec90b5e 1239 /* Obtain peer from parent */
1240 if (info->extra && info->extra->parent)
4b7e6066
DS		 1241 peer = ((struct bgp_path_info *)(info->extra->parent))
1242 ->peer;
ddb5b488
PZ		 1243 }
1244
d62a17ae 1245 tag = info->attr->tag;
1246
88493076 1247 /* If the route's source is EVPN, flag as such. */
77e62f2b 1248 is_evpn = is_route_parent_evpn(info);
1249 if (is_evpn)
90264d64 1250 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
d3135ba3 1251
d62a17ae 1252 if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED
1253 || info->sub_type == BGP_ROUTE_AGGREGATE) {
9913029c 1254 SET_FLAG(api.flags, ZEBRA_FLAG_IBGP);
4e8b02f4 1255 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
718e3744 1256 }
a39275d7 1257
c8d6f0d6 1258 if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL)
d62a17ae 1259 || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)
892fedb6 1260 || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK))
d62a17ae 1261
4e8b02f4 1262 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
d62a17ae 1263
951745bd
PG		 1264 if (info->attr->rmap_table_id) {
1265 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1266 api.tableid = info->attr->rmap_table_id;
1267 }
1268
ef3e0d04
SM		 1269 if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1270 SET_FLAG(api.message, ZAPI_MESSAGE_SRTE);
1271
2ad4f093
RW		 1272 /* Metric is currently based on the best-path only */
1273 metric = info->attr->med;
4e30bc2b 1274
1275 /* Determine if we're doing weighted ECMP or not */
f7e1c681 1276 do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info);
4e30bc2b 1277 if (do_wt_ecmp)
1278 cum_bw = bgp_path_info_mpath_cumbw(info);
1279
18ee8310 1280 for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) {
f7e1c681 1281 uint32_t nh_weight;
1282
a74e593b
RW		 1283 if (valid_nh_count >= multipath_num)
1284 break;
1285
b4cb15c6 1286 *mpinfo_cp = *mpinfo;
f7e1c681 1287 nh_weight = 0;
b4cb15c6 1288
d0d695f4
RW		 1289 /* Get nexthop address-family */
1290 if (p->family == AF_INET
1291 && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))
1292 nh_family = AF_INET;
1293 else if (p->family == AF_INET6
1294 || (p->family == AF_INET
1295 && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)))
1296 nh_family = AF_INET6;
1297 else
1298 continue;
1299
f7e1c681 1300 /* If processing for weighted ECMP, determine the next hop's
1301 * weight. Based on user setting, we may skip the next hop
1302 * in some situations.
1303 */
1304 if (do_wt_ecmp) {
1305 if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr,
1306 cum_bw, &nh_weight))
1307 continue;
1308 }
1374aec9 1309 api_nh = &api.nexthops[valid_nh_count];
ef3e0d04
SM		 1310
1311 if (CHECK_FLAG(info->attr->flag,
1312 ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1313 api_nh->srte_color = info->attr->srte_color;
1314
2ad4f093 1315 if (nh_family == AF_INET) {
ddb5b488 1316 if (bgp_debug_zebra(&api.prefix)) {
ddb5b488
PZ		 1317 if (mpinfo->extra) {
1318 zlog_debug(
1319 "%s: p=%s, bgp_is_valid_label: %d",
1320 __func__, buf_prefix,
1321 bgp_is_valid_label(
1322 &mpinfo->extra
1323 ->label[0]));
1324 } else {
1325 zlog_debug(
1326 "%s: p=%s, extra is NULL, no label",
1327 __func__, buf_prefix);
1328 }
1329 }
1330
6c0a6053 1331 if (bgp->table_map[afi][safi].name) {
d62a17ae 1332 /* Copy info and attributes, so the route-map
b4cb15c6
DL		 1333 apply doesn't modify the BGP route info. */
1334 local_attr = *mpinfo->attr;
1335 mpinfo_cp->attr = &local_attr;
ddb5b488 1336 }
b4cb15c6 1337
ddb5b488 1338 if (bgp->table_map[afi][safi].name) {
b4cb15c6 1339 if (!bgp_table_map_apply(
d62a17ae 1340 bgp->table_map[afi][safi].map, p,
b4cb15c6
DL		 1341 mpinfo_cp))
1342 continue;
1343
1344 /* metric/tag is only allowed to be
1345 * overridden on 1st nexthop */
1346 if (mpinfo == info) {
1347 metric = mpinfo_cp->attr->med;
1348 tag = mpinfo_cp->attr->tag;
d62a17ae 1349 }
b4cb15c6 1350 }
d62a17ae 1351
77e62f2b 1352 nh_updated = update_ipv4nh_for_route_install(
1353 nh_othervrf,
e1e71450 1354 nh_othervrf ?
1355 info->extra->bgp_orig : bgp,
77e62f2b 1356 &mpinfo_cp->attr->nexthop,
1357 mpinfo_cp->attr, is_evpn, api_nh);
2ad4f093 1358 } else {
f220da99 1359 ifindex_t ifindex = IFINDEX_INTERNAL;
2ad4f093 1360 struct in6_addr *nexthop;
9913029c 1361
6c0a6053 1362 if (bgp->table_map[afi][safi].name) {
ddb5b488
PZ		 1363 /* Copy info and attributes, so the route-map
1364 apply doesn't modify the BGP route info. */
1365 local_attr = *mpinfo->attr;
1366 mpinfo_cp->attr = &local_attr;
ddb5b488
PZ		 1367 }
1368
d62a17ae 1369 if (bgp->table_map[afi][safi].name) {
1370 /* Copy info and attributes, so the route-map
b4cb15c6
DL		 1371 apply doesn't modify the BGP route info. */
1372 local_attr = *mpinfo->attr;
1373 mpinfo_cp->attr = &local_attr;
1374
1375 if (!bgp_table_map_apply(
d62a17ae 1376 bgp->table_map[afi][safi].map, p,
b4cb15c6
DL		 1377 mpinfo_cp))
1378 continue;
1379
1380 /* metric/tag is only allowed to be
1381 * overridden on 1st nexthop */
1382 if (mpinfo == info) {
1383 metric = mpinfo_cp->attr->med;
1384 tag = mpinfo_cp->attr->tag;
d62a17ae 1385 }
b4cb15c6 1386 }
18ee8310
DS		 1387 nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp,
1388 &ifindex);
77e62f2b 1389 nh_updated = update_ipv6nh_for_route_install(
e1e71450 1390 nh_othervrf, nh_othervrf ?
1391 info->extra->bgp_orig : bgp,
1392 nexthop, ifindex,
77e62f2b 1393 mpinfo, info, is_evpn, api_nh);
2ad4f093 1394 }
d62a17ae 1395
77e62f2b 1396 /* Did we get proper nexthop info to update zebra? */
1397 if (!nh_updated)
1398 continue;
1399
a4d82a8a
PZ		 1400 if (mpinfo->extra
1401 && bgp_is_valid_label(&mpinfo->extra->label[0])
90264d64 1402 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
2ad4f093 1403 has_valid_label = 1;
b57ba6d2 1404 label = label_pton(&mpinfo->extra->label[0]);
9913029c 1405
68a02e06
MS		 1406 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL);
1407
2ad4f093
RW		 1408 api_nh->label_num = 1;
1409 api_nh->labels[0] = label;
d62a17ae 1410 }
22e63104 1411 memcpy(&api_nh->rmac, &(mpinfo->attr->rmac),
1412 sizeof(struct ethaddr));
f7e1c681 1413 api_nh->weight = nh_weight;
4e30bc2b 1414
2ad4f093
RW		 1415 valid_nh_count++;
1416 }
d62a17ae 1417
5cc347c4
DS		 1418 /*
1419 * When we create an aggregate route we must also
1420 * install a Null0 route in the RIB, so overwrite
1421 * what was written into api with a blackhole route
1422 */
1423 if (info->sub_type == BGP_ROUTE_AGGREGATE)
1424 zapi_route_set_blackhole(&api, BLACKHOLE_NULL);
1425 else
2ad4f093 1426 api.nexthop_num = valid_nh_count;
d62a17ae 1427
2ad4f093
RW		 1428 SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
1429 api.metric = metric;
d62a17ae 1430
2ad4f093
RW		 1431 if (tag) {
1432 SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
1433 api.tag = tag;
1434 }
d62a17ae 1435
2ad4f093
RW		 1436 distance = bgp_distance_apply(p, info, afi, safi, bgp);
1437 if (distance) {
1438 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
1439 api.distance = distance;
1440 }
d62a17ae 1441
2ad4f093
RW		 1442 if (bgp_debug_zebra(p)) {
1443 char prefix_buf[PREFIX_STRLEN];
1444 char nh_buf[INET6_ADDRSTRLEN];
d8744f72
CS		 1445 char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'};
1446 char buf1[ETHER_ADDR_STRLEN];
2ad4f093
RW		 1447 char label_buf[20];
1448 int i;
1449
1450 prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf));
1451 zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI
1452 " count %d",
1453 valid_nh_count ? "add" : "delete", bgp->vrf_id,
1454 prefix_buf, api.metric, api.tag, api.nexthop_num);
1455 for (i = 0; i < api.nexthop_num; i++) {
1456 api_nh = &api.nexthops[i];
1457
1ee069db
CS		 1458 switch (api_nh->type) {
1459 case NEXTHOP_TYPE_IFINDEX:
77e62f2b 1460 nh_buf[0] = '\0';
1ee069db
CS		 1461 break;
1462 case NEXTHOP_TYPE_IPV4:
1463 case NEXTHOP_TYPE_IPV4_IFINDEX:
1464 nh_family = AF_INET;
77e62f2b 1465 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1466 sizeof(nh_buf));
1ee069db
CS		 1467 break;
1468 case NEXTHOP_TYPE_IPV6:
1469 case NEXTHOP_TYPE_IPV6_IFINDEX:
1470 nh_family = AF_INET6;
1471 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1472 sizeof(nh_buf));
1473 break;
1474 case NEXTHOP_TYPE_BLACKHOLE:
1475 strlcpy(nh_buf, "blackhole", sizeof(nh_buf));
1476 break;
1477 default:
1478 /* Note: add new nexthop case */
1479 assert(0);
1480 break;
77e62f2b 1481 }
2ad4f093
RW		 1482
1483 label_buf[0] = '\0';
d8744f72 1484 eth_buf[0] = '\0';
a4d82a8a
PZ		 1485 if (has_valid_label
1486 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))
a7799788
CS		 1487 snprintf(label_buf, sizeof(label_buf),
1488 "label %u", api_nh->labels[0]);
d8744f72
CS		 1489 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)
1490 && !is_zero_mac(&api_nh->rmac))
a7799788
CS		 1491 snprintf(eth_buf, sizeof(eth_buf), " RMAC %s",
1492 prefix_mac2str(&api_nh->rmac,
1493 buf1, sizeof(buf1)));
4e30bc2b 1494 zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s",
77e62f2b 1495 i + 1, nh_buf, api_nh->ifindex,
4e30bc2b 1496 api_nh->vrf_id, api_nh->weight,
1497 label_buf, eth_buf);
d62a17ae 1498 }
1499 }
2ad4f093 1500
960035b2
PZ		 1501 if (bgp_debug_zebra(p)) {
1502 int recursion_flag = 0;
1503
1504 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION))
1505 recursion_flag = 1;
1506
1507 zlog_debug("%s: %s: announcing to zebra (recursion %sset)",
1508 __func__, buf_prefix,
1509 (recursion_flag ? "" : "NOT "));
1510 }
2ad4f093
RW		 1511 zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD
1512 : ZEBRA_ROUTE_DELETE,
1513 zclient, &api);
718e3744 1514}
1515
73ac8160 1516/* Announce all routes of a table to zebra */
d62a17ae 1517void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi)
73ac8160 1518{
9bcb3eef 1519 struct bgp_dest *dest;
d62a17ae 1520 struct bgp_table *table;
40381db7 1521 struct bgp_path_info *pi;
d62a17ae 1522
1523 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1524 * know of this instance.
1525 */
1526 if (!bgp_install_info_to_zebra(bgp))
1527 return;
1528
1529 table = bgp->rib[afi][safi];
1530 if (!table)
1531 return;
1532
9bcb3eef
DS		 1533 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1534 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
40381db7 1535 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
ddb5b488 1536
40381db7
DS		 1537 (pi->type == ZEBRA_ROUTE_BGP
1538 && (pi->sub_type == BGP_ROUTE_NORMAL
1539 || pi->sub_type == BGP_ROUTE_IMPORTED)))
ddb5b488 1540
9bcb3eef
DS		 1541 bgp_zebra_announce(dest,
1542 bgp_dest_get_prefix(dest),
b54892e0 1543 pi, bgp, afi, safi);
73ac8160
DS		 1544}
1545
c163f297
DS		 1546/* Announce routes of any bgp subtype of a table to zebra */
1547void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi,
1548 safi_t safi)
1549{
1550 struct bgp_dest *dest;
1551 struct bgp_table *table;
1552 struct bgp_path_info *pi;
1553
1554 if (!bgp_install_info_to_zebra(bgp))
1555 return;
1556
1557 table = bgp->rib[afi][safi];
1558 if (!table)
1559 return;
1560
1561 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1562 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
1563 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
1564 pi->type == ZEBRA_ROUTE_BGP)
1565 bgp_zebra_announce(dest,
1566 bgp_dest_get_prefix(dest),
1567 pi, bgp, afi, safi);
1568}
1569
5a1ae2c2 1570void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info,
568e10ca 1571 struct bgp *bgp, safi_t safi)
718e3744 1572{
2ad4f093 1573 struct zapi_route api;
f7df1907 1574 struct peer *peer;
ddb5b488 1575
d62a17ae 1576 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1577 * know of this instance.
1578 */
568e10ca 1579 if (!bgp_install_info_to_zebra(bgp))
d62a17ae 1580 return;
1581
f7df1907
PG		 1582 if (safi == SAFI_FLOWSPEC) {
1583 peer = info->peer;
d90b788e
A		 1584 bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false);
1585 return;
f7df1907 1586 }
529efa23 1587
2ad4f093 1588 memset(&api, 0, sizeof(api));
568e10ca 1589 api.vrf_id = bgp->vrf_id;
2ad4f093
RW		 1590 api.type = ZEBRA_ROUTE_BGP;
1591 api.safi = safi;
1592 api.prefix = *p;
d62a17ae 1593
1276ce38
PG		 1594 if (info->attr->rmap_table_id) {
1595 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1596 api.tableid = info->attr->rmap_table_id;
1597 }
1598
88493076 1599 /* If the route's source is EVPN, flag as such. */
1600 if (is_route_parent_evpn(info))
90264d64 1601 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
01740ff4 1602
2ad4f093
RW		 1603 if (bgp_debug_zebra(p)) {
1604 char buf[PREFIX_STRLEN];
d62a17ae 1605
2ad4f093 1606 prefix2str(&api.prefix, buf, sizeof(buf));
568e10ca 1607 zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf);
d62a17ae 1608 }
d62a17ae 1609
2ad4f093 1610 zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
718e3744 1611}
56c1f7d8 1612
c163f297
DS		 1613/* Withdraw all entries in a BGP instances RIB table from Zebra */
1614void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi)
1615{
1616 struct bgp_dest *dest;
1617 struct bgp_table *table;
1618 struct bgp_path_info *pi;
1619
1620 if (!bgp_install_info_to_zebra(bgp))
1621 return;
1622
1623 table = bgp->rib[afi][safi];
1624 if (!table)
1625 return;
1626
1627 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) {
1628 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
1629 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)
1630 && (pi->type == ZEBRA_ROUTE_BGP))
1631 bgp_zebra_withdraw(bgp_dest_get_prefix(dest),
1632 pi, bgp, safi);
1633 }
1634 }
1635}
1636
d7c0a89a
QY		 1637struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type,
1638 unsigned short instance)
7c8ff89e 1639{
d62a17ae 1640 struct list *red_list;
1641 struct listnode *node;
1642 struct bgp_redist *red;
7c8ff89e 1643
d62a17ae 1644 red_list = bgp->redist[afi][type];
1645 if (!red_list)
1646 return (NULL);
7c8ff89e 1647
d62a17ae 1648 for (ALL_LIST_ELEMENTS_RO(red_list, node, red))
1649 if (red->instance == instance)
1650 return red;
7c8ff89e 1651
d62a17ae 1652 return NULL;
7c8ff89e
DS		 1653}
1654
d7c0a89a
QY		 1655struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type,
1656 unsigned short instance)
7c8ff89e 1657{
d62a17ae 1658 struct list *red_list;
1659 struct bgp_redist *red;
7c8ff89e 1660
d62a17ae 1661 red = bgp_redist_lookup(bgp, afi, type, instance);
1662 if (red)
1663 return red;
7c8ff89e 1664
d62a17ae 1665 if (!bgp->redist[afi][type])
1666 bgp->redist[afi][type] = list_new();
7c8ff89e 1667
d62a17ae 1668 red_list = bgp->redist[afi][type];
9f5dc319 1669 red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist));
d62a17ae 1670 red->instance = instance;
7c8ff89e 1671
d62a17ae 1672 listnode_add(red_list, red);
7c8ff89e 1673
d62a17ae 1674 return red;
7c8ff89e
DS		 1675}
1676
d7c0a89a
QY		 1677static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type,
1678 unsigned short instance)
7c8ff89e 1679{
d62a17ae 1680 struct bgp_redist *red;
1681
1682 red = bgp_redist_lookup(bgp, afi, type, instance);
1683
1684 if (red) {
1685 listnode_delete(bgp->redist[afi][type], red);
1686 XFREE(MTYPE_BGP_REDIST, red);
acdf5e25 1687 if (!bgp->redist[afi][type]->count)
6a154c88 1688 list_delete(&bgp->redist[afi][type]);
d62a17ae 1689 }
7c8ff89e 1690}
6b0655a2 1691
718e3744 1692/* Other routes redistribution into BGP. */
d7c0a89a 1693int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type,
e923dd62 1694 unsigned short instance, bool changed)
718e3744 1695{
e923dd62 1696 /* If redistribute options are changed call
1697 * bgp_redistribute_unreg() to reset the option and withdraw
1698 * the routes
1699 */
1700 if (changed)
1701 bgp_redistribute_unreg(bgp, afi, type, instance);
718e3744 1702
d62a17ae 1703 /* Return if already redistribute flag is set. */
1704 if (instance) {
1705 if (redist_check_instance(&zclient->mi_redist[afi][type],
1706 instance))
1707 return CMD_WARNING;
718e3744 1708
d62a17ae 1709 redist_add_instance(&zclient->mi_redist[afi][type], instance);
1710 } else {
1711 if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1712 return CMD_WARNING;
7076bb2f 1713
49e5a4a0 1714#ifdef ENABLE_BGP_VNC
f920dd6d 1715 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
d62a17ae 1716 vnc_export_bgp_enable(
1717 bgp, afi); /* only enables if mode bits cfg'd */
1718 }
65efcfce
LB		 1719#endif
1720
d62a17ae 1721 vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id);
1722 }
718e3744 1723
ea12cf11
DS		 1724 /*
1725 * Don't try to register if we're not connected to Zebra or Zebra
1726 * doesn't know of this instance.
1727 *
1728 * When we come up later well resend if needed.
d62a17ae 1729 */
1730 if (!bgp_install_info_to_zebra(bgp))
ea12cf11 1731 return CMD_SUCCESS;
a39275d7 1732
d62a17ae 1733 if (BGP_DEBUG(zebra, ZEBRA))
1734 zlog_debug("Tx redistribute add VRF %u afi %d %s %d",
1735 bgp->vrf_id, afi, zebra_route_string(type),
1736 instance);
518f0eb1 1737
d62a17ae 1738 /* Send distribute add message to zebra. */
1739 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1740 instance, bgp->vrf_id);
718e3744 1741
d62a17ae 1742 return CMD_SUCCESS;
718e3744 1743}
1744
d62a17ae 1745int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1746 unsigned short instance)
518f0eb1 1747{
d62a17ae 1748 /* Don't try to send if we're not connected to Zebra or Zebra doesn't
1749 * know of this instance.
1750 */
1751 if (!bgp_install_info_to_zebra(bgp))
1752 return -1;
1753
1754 if (BGP_DEBUG(zebra, ZEBRA))
1755 zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d",
1756 bgp->vrf_id, afi, zebra_route_string(type),
1757 instance);
1758
1759 /* Send distribute add message to zebra. */
1760 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type,
1761 instance, bgp->vrf_id);
1762 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1763 instance, bgp->vrf_id);
1764
1765 return 0;
518f0eb1
DS		 1766}
1767
718e3744 1768/* Redistribute with route-map specification. */
3dc339cd
DA		 1769bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name,
1770 struct route_map *route_map)
718e3744 1771{
d62a17ae 1772 if (red->rmap.name && (strcmp(red->rmap.name, name) == 0))
3dc339cd 1773 return false;
718e3744 1774
0a22ddfb 1775 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1776 /* Decrement the count for existing routemap and
1777 * increment the count for new route map.
1778 */
1779 route_map_counter_decrement(red->rmap.map);
d62a17ae 1780 red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name);
1de27621 1781 red->rmap.map = route_map;
b4897fa5 1782 route_map_counter_increment(red->rmap.map);
718e3744 1783
3dc339cd 1784 return true;
718e3744 1785}
1786
1787/* Redistribute with metric specification. */
3dc339cd
DA		 1788bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red,
1789 afi_t afi, int type, uint32_t metric)
718e3744 1790{
9bcb3eef 1791 struct bgp_dest *dest;
40381db7 1792 struct bgp_path_info *pi;
d62a17ae 1793
1794 if (red->redist_metric_flag && red->redist_metric == metric)
3dc339cd 1795 return false;
d62a17ae 1796
1797 red->redist_metric_flag = 1;
1798 red->redist_metric = metric;
1799
9bcb3eef
DS		 1800 for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest;
1801 dest = bgp_route_next(dest)) {
1802 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
40381db7
DS		 1803 if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE
1804 && pi->type == type
1805 && pi->instance == red->instance) {
d62a17ae 1806 struct attr *old_attr;
1807 struct attr new_attr;
1808
6f4f49b2 1809 new_attr = *pi->attr;
d62a17ae 1810 new_attr.med = red->redist_metric;
40381db7
DS		 1811 old_attr = pi->attr;
1812 pi->attr = bgp_attr_intern(&new_attr);
d62a17ae 1813 bgp_attr_unintern(&old_attr);
1814
9bcb3eef 1815 bgp_path_info_set_flag(dest, pi,
18ee8310 1816 BGP_PATH_ATTR_CHANGED);
9bcb3eef 1817 bgp_process(bgp, dest, afi, SAFI_UNICAST);
d62a17ae 1818 }
1819 }
1820 }
1821
3dc339cd 1822 return true;
718e3744 1823}
1824
1825/* Unset redistribution. */
d62a17ae 1826int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1827 unsigned short instance)
718e3744 1828{
d62a17ae 1829 struct bgp_redist *red;
1830
1831 red = bgp_redist_lookup(bgp, afi, type, instance);
1832 if (!red)
1833 return CMD_SUCCESS;
1834
1835 /* Return if zebra connection is disabled. */
1836 if (instance) {
1837 if (!redist_check_instance(&zclient->mi_redist[afi][type],
1838 instance))
1839 return CMD_WARNING;
1840 redist_del_instance(&zclient->mi_redist[afi][type], instance);
1841 } else {
1842 if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1843 return CMD_WARNING;
1844 vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id);
1845 }
718e3744 1846
65efcfce 1847
d62a17ae 1848 if (bgp_install_info_to_zebra(bgp)) {
1849 /* Send distribute delete message to zebra. */
1850 if (BGP_DEBUG(zebra, ZEBRA))
1851 zlog_debug("Tx redistribute del VRF %u afi %d %s %d",
1852 bgp->vrf_id, afi, zebra_route_string(type),
1853 instance);
1854 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi,
1855 type, instance, bgp->vrf_id);
1856 }
1857
1858 /* Withdraw redistributed routes from current BGP's routing table. */
1859 bgp_redistribute_withdraw(bgp, afi, type, instance);
1860
1861 return CMD_SUCCESS;
718e3744 1862}
1863
6aeb9e78 1864/* Unset redistribution. */
d62a17ae 1865int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1866 unsigned short instance)
6aeb9e78 1867{
d62a17ae 1868 struct bgp_redist *red;
6aeb9e78 1869
ddb5b488
PZ		 1870/*
1871 * vnc and vpn->vrf checks must be before red check because
1872 * they operate within bgpd irrespective of zebra connection
1873 * status. red lookup fails if there is no zebra connection.
1874 */
49e5a4a0 1875#ifdef ENABLE_BGP_VNC
f920dd6d 1876 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
ddb5b488
PZ		 1877 vnc_export_bgp_disable(bgp, afi);
1878 }
1879#endif
ddb5b488 1880
d62a17ae 1881 red = bgp_redist_lookup(bgp, afi, type, instance);
1882 if (!red)
1883 return CMD_SUCCESS;
6aeb9e78 1884
d62a17ae 1885 bgp_redistribute_unreg(bgp, afi, type, instance);
6aeb9e78 1886
d62a17ae 1887 /* Unset route-map. */
0a22ddfb 1888 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1889 route_map_counter_decrement(red->rmap.map);
d62a17ae 1890 red->rmap.map = NULL;
6aeb9e78 1891
d62a17ae 1892 /* Unset metric. */
1893 red->redist_metric_flag = 0;
1894 red->redist_metric = 0;
6aeb9e78 1895
d62a17ae 1896 bgp_redist_del(bgp, afi, type, instance);
6aeb9e78 1897
d62a17ae 1898 return CMD_SUCCESS;
6aeb9e78
DS		 1899}
1900
fc2408ec
DS		 1901void bgp_redistribute_redo(struct bgp *bgp)
1902{
1903 afi_t afi;
1904 int i;
1905 struct list *red_list;
1906 struct listnode *node;
1907 struct bgp_redist *red;
1908
1909 for (afi = AFI_IP; afi < AFI_MAX; afi++) {
1910 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
1911
1912 red_list = bgp->redist[afi][i];
1913 if (!red_list)
1914 continue;
1915
1916 for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) {
1917 bgp_redistribute_resend(bgp, afi, i,
1918 red->instance);
1919 }
1920 }
1921 }
1922}
1923
401d56cc
DS		 1924/* Unset redistribute vrf bitmap during triggers like
1925 restart networking or delete VRFs */
1926void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id)
eb117f29 1927{
d62a17ae 1928 int i;
1929 afi_t afi;
1930
1931 for (afi = AFI_IP; afi < AFI_MAX; afi++)
1932 for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
7e20406f 1933 if (vrf_bitmap_check(zclient->redist[afi][i],
401d56cc 1934 old_vrf_id))
d62a17ae 1935 vrf_bitmap_unset(zclient->redist[afi][i],
1936 old_vrf_id);
d62a17ae 1937 return;
eb117f29
SK		 1938}
1939
d62a17ae 1940void bgp_zclient_reset(void)
718e3744 1941{
d62a17ae 1942 zclient_reset(zclient);
718e3744 1943}
1944
ad4cbda1 1945/* Register this instance with Zebra. Invoked upon connect (for
1946 * default instance) and when other VRFs are learnt (or created and
1947 * already learnt).
1948 */
d62a17ae 1949void bgp_zebra_instance_register(struct bgp *bgp)
ad4cbda1 1950{
d62a17ae 1951 /* Don't try to register if we're not connected to Zebra */
1952 if (!zclient || zclient->sock < 0)
1953 return;
ad4cbda1 1954
d62a17ae 1955 if (BGP_DEBUG(zebra, ZEBRA))
1956 zlog_debug("Registering VRF %u", bgp->vrf_id);
ad4cbda1 1957
d62a17ae 1958 /* Register for router-id, interfaces, redistributed routes. */
1959 zclient_send_reg_requests(zclient, bgp->vrf_id);
7724c0a1 1960
e2f3a930
T		 1961 /* For EVPN instance, register to learn about VNIs, if appropriate. */
1962 if (bgp->advertise_all_vni)
d62a17ae 1963 bgp_zebra_advertise_all_vni(bgp, 1);
1ee0a2df
DS		 1964
1965 bgp_nht_register_nexthops(bgp);
ad4cbda1 1966}
1967
1968/* Deregister this instance with Zebra. Invoked upon the instance
1969 * being deleted (default or VRF) and it is already registered.
1970 */
d62a17ae 1971void bgp_zebra_instance_deregister(struct bgp *bgp)
ad4cbda1 1972{
d62a17ae 1973 /* Don't try to deregister if we're not connected to Zebra */
1974 if (zclient->sock < 0)
1975 return;
ad4cbda1 1976
d62a17ae 1977 if (BGP_DEBUG(zebra, ZEBRA))
1978 zlog_debug("Deregistering VRF %u", bgp->vrf_id);
ad4cbda1 1979
e2f3a930
T		 1980 /* For EVPN instance, unregister learning about VNIs, if appropriate. */
1981 if (bgp->advertise_all_vni)
d62a17ae 1982 bgp_zebra_advertise_all_vni(bgp, 0);
7724c0a1 1983
d62a17ae 1984 /* Deregister for router-id, interfaces, redistributed routes. */
1985 zclient_send_dereg_requests(zclient, bgp->vrf_id);
ad4cbda1 1986}
1987
d62a17ae 1988void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 1989{
d62a17ae 1990 int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL;
5c81b96a 1991
d62a17ae 1992 /* Don't try to initiate if we're not connected to Zebra */
1993 if (zclient->sock < 0)
1994 return;
4a04e5f7 1995
d62a17ae 1996 if (BGP_DEBUG(zebra, ZEBRA))
1997 zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id,
1998 peer->host);
4a04e5f7 1999
b3a3290e
DS		 2000 /*
2001 * If unnumbered peer (peer->ifp) call thru zapi to start RAs.
2002 * If we don't have an ifp pointer, call function to find the
2003 * ifps for a numbered enhe peer to turn RAs on.
2004 */
2005 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
2006 peer->ifp, 1, ra_interval)
2007 : bgp_nht_reg_enhe_cap_intfs(peer);
4a04e5f7 2008}
2009
d62a17ae 2010void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 2011{
d62a17ae 2012 /* Don't try to terminate if we're not connected to Zebra */
2013 if (zclient->sock < 0)
2014 return;
4a04e5f7 2015
d62a17ae 2016 if (BGP_DEBUG(zebra, ZEBRA))
2017 zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id,
2018 peer->host);
4a04e5f7 2019
b3a3290e
DS		 2020 /*
2021 * If unnumbered peer (peer->ifp) call thru zapi to stop RAs.
2022 * If we don't have an ifp pointer, call function to find the
2023 * ifps for a numbered enhe peer to turn RAs off.
2024 */
2025 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
2026 peer->ifp, 0, 0)
2027 : bgp_nht_dereg_enhe_cap_intfs(peer);
4a04e5f7 2028}
2029
31310b25
MK		 2030int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni)
2031{
2032 struct stream *s = NULL;
2033
2034 /* Check socket. */
2035 if (!zclient || zclient->sock < 0)
2036 return 0;
2037
2038 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2039 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2040 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2041 zlog_debug(
2042 "%s: No zebra instance to talk to, cannot advertise subnet",
2043 __func__);
31310b25 2044 return 0;
bb4ef1ae 2045 }
31310b25
MK		 2046
2047 s = zclient->obuf;
2048 stream_reset(s);
2049
2050 zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id);
2051 stream_putc(s, advertise);
2052 stream_put3(s, vni);
2053 stream_putw_at(s, 0, stream_get_endp(s));
2054
2055 return zclient_send_message(zclient);
2056}
2057
a8016157
CS		 2058int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni)
2059{
2060 struct stream *s = NULL;
2061
2062 /* Check socket. */
2063 if (!zclient || zclient->sock < 0)
2064 return 0;
2065
2066 /* Don't try to register if Zebra doesn't know of this instance. */
2067 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2068 return 0;
2069
2070 s = zclient->obuf;
2071 stream_reset(s);
2072
2073 zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id);
2074 stream_putc(s, advertise);
2075 stream_putl(s, vni);
2076 stream_putw_at(s, 0, stream_get_endp(s));
2077
2078 return zclient_send_message(zclient);
2079}
2080
1a98c087
MK		 2081int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni)
2082{
2083 struct stream *s = NULL;
2084
2085 /* Check socket. */
2086 if (!zclient || zclient->sock < 0)
2087 return 0;
2088
2089 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2090 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2091 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2092 zlog_debug(
2093 "%s: No zebra instance to talk to, not installing gw_macip",
2094 __func__);
1a98c087 2095 return 0;
bb4ef1ae 2096 }
1a98c087
MK		 2097
2098 s = zclient->obuf;
2099 stream_reset(s);
2100
2101 zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id);
2102 stream_putc(s, advertise);
cc6d5476 2103 stream_putl(s, vni);
1a98c087
MK		 2104 stream_putw_at(s, 0, stream_get_endp(s));
2105
2106 return zclient_send_message(zclient);
2107}
2108
fd069644
DS		 2109int bgp_zebra_vxlan_flood_control(struct bgp *bgp,
2110 enum vxlan_flood_control flood_ctrl)
2111{
2112 struct stream *s;
2113
2114 /* Check socket. */
2115 if (!zclient || zclient->sock < 0)
2116 return 0;
2117
2118 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2119 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2120 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2121 zlog_debug(
2122 "%s: No zebra instance to talk to, not installing all vni",
2123 __func__);
fd069644 2124 return 0;
bb4ef1ae 2125 }
fd069644
DS		 2126
2127 s = zclient->obuf;
2128 stream_reset(s);
2129
2130 zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id);
2131 stream_putc(s, flood_ctrl);
2132 stream_putw_at(s, 0, stream_get_endp(s));
2133
2134 return zclient_send_message(zclient);
2135}
2136
d62a17ae 2137int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise)
7724c0a1 2138{
d62a17ae 2139 struct stream *s;
7724c0a1 2140
d62a17ae 2141 /* Check socket. */
2142 if (!zclient || zclient->sock < 0)
2143 return 0;
7724c0a1 2144
d62a17ae 2145 /* Don't try to register if Zebra doesn't know of this instance. */
2146 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2147 return 0;
7724c0a1 2148
d62a17ae 2149 s = zclient->obuf;
2150 stream_reset(s);
7724c0a1 2151
d62a17ae 2152 zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id);
2153 stream_putc(s, advertise);
fbac9605
DS		 2154 /* Also inform current BUM handling setting. This is really
2155 * relevant only when 'advertise' is set.
2156 */
fd069644 2157 stream_putc(s, bgp->vxlan_flood_ctrl);
d62a17ae 2158 stream_putw_at(s, 0, stream_get_endp(s));
7724c0a1 2159
d62a17ae 2160 return zclient_send_message(zclient);
7724c0a1 2161}
2162
0b9d9cd0
CS		 2163int bgp_zebra_dup_addr_detection(struct bgp *bgp)
2164{
2165 struct stream *s;
2166
2167 /* Check socket. */
2168 if (!zclient || zclient->sock < 0)
2169 return 0;
2170
2171 /* Don't try to register if Zebra doesn't know of this instance. */
2172 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2173 return 0;
2174
2175 if (BGP_DEBUG(zebra, ZEBRA))
2176 zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u",
2177 bgp->evpn_info->dup_addr_detect ?
2178 "enable" : "disable",
2179 bgp->evpn_info->dad_max_moves,
2180 bgp->evpn_info->dad_time,
2181 bgp->evpn_info->dad_freeze ?
2182 "enable" : "disable",
2183 bgp->evpn_info->dad_freeze_time);
2184
2185 s = zclient->obuf;
2186 stream_reset(s);
2187 zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION,
2188 bgp->vrf_id);
2189 stream_putl(s, bgp->evpn_info->dup_addr_detect);
2190 stream_putl(s, bgp->evpn_info->dad_time);
2191 stream_putl(s, bgp->evpn_info->dad_max_moves);
2192 stream_putl(s, bgp->evpn_info->dad_freeze);
2193 stream_putl(s, bgp->evpn_info->dad_freeze_time);
2194 stream_putw_at(s, 0, stream_get_endp(s));
2195
2196 return zclient_send_message(zclient);
2197}
2198
121f9dee 2199static int rule_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2200{
2201 uint32_t seqno, priority, unique;
2202 enum zapi_rule_notify_owner note;
2203 struct bgp_pbr_action *bgp_pbra;
ffee150e 2204 struct bgp_pbr_rule *bgp_pbr = NULL;
58a1d249 2205 char ifname[INTERFACE_NAMSIZ + 1];
30d50e6d
PG		 2206
2207 if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique,
58a1d249 2208 ifname, &note))
30d50e6d
PG		 2209 return -1;
2210
70eabd12 2211 bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique);
30d50e6d 2212 if (!bgp_pbra) {
ffee150e
PG		 2213 /* look in bgp pbr rule */
2214 bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique);
2215 if (!bgp_pbr && note != ZAPI_RULE_REMOVED) {
2216 if (BGP_DEBUG(zebra, ZEBRA))
2217 zlog_debug("%s: Fail to look BGP rule (%u)",
15569c58 2218 __func__, unique);
ffee150e
PG		 2219 return 0;
2220 }
30d50e6d
PG		 2221 }
2222
2223 switch (note) {
2224 case ZAPI_RULE_FAIL_INSTALL:
2225 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2226 zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__);
ffee150e
PG		 2227 if (bgp_pbra) {
2228 bgp_pbra->installed = false;
2229 bgp_pbra->install_in_progress = false;
2230 } else {
2231 bgp_pbr->installed = false;
2232 bgp_pbr->install_in_progress = false;
2233 }
30d50e6d
PG		 2234 break;
2235 case ZAPI_RULE_INSTALLED:
ffee150e
PG		 2236 if (bgp_pbra) {
2237 bgp_pbra->installed = true;
2238 bgp_pbra->install_in_progress = false;
2239 } else {
ce3c0614
PG		 2240 struct bgp_path_info *path;
2241 struct bgp_path_info_extra *extra;
2242
ffee150e
PG		 2243 bgp_pbr->installed = true;
2244 bgp_pbr->install_in_progress = false;
2245 bgp_pbr->action->refcnt++;
ce3c0614
PG		 2246 /* link bgp_info to bgp_pbr */
2247 path = (struct bgp_path_info *)bgp_pbr->path;
2248 extra = bgp_path_info_extra_get(path);
f5925234
PG		 2249 listnode_add_force(&extra->bgp_fs_iprule,
2250 bgp_pbr);
ffee150e 2251 }
30d50e6d 2252 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2253 zlog_debug("%s: Received RULE_INSTALLED", __func__);
30d50e6d 2254 break;
f18a08f5 2255 case ZAPI_RULE_FAIL_REMOVE:
30d50e6d
PG		 2256 case ZAPI_RULE_REMOVED:
2257 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2258 zlog_debug("%s: Received RULE REMOVED", __func__);
30d50e6d
PG		 2259 break;
2260 }
2261
2262 return 0;
2263}
2264
121f9dee 2265static int ipset_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2266{
2267 uint32_t unique;
2268 enum zapi_ipset_notify_owner note;
2269 struct bgp_pbr_match *bgp_pbim;
2270
2271 if (!zapi_ipset_notify_decode(zclient->ibuf,
2272 &unique,
2273 &note))
2274 return -1;
2275
2276 bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique);
2277 if (!bgp_pbim) {
2278 if (BGP_DEBUG(zebra, ZEBRA))
88055124 2279 zlog_debug("%s: Fail to look BGP match ( %u, ID %u)",
15569c58 2280 __func__, note, unique);
30d50e6d
PG		 2281 return 0;
2282 }
2283
2284 switch (note) {
2285 case ZAPI_IPSET_FAIL_INSTALL:
2286 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2287 zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__);
30d50e6d
PG		 2288 bgp_pbim->installed = false;
2289 bgp_pbim->install_in_progress = false;
2290 break;
2291 case ZAPI_IPSET_INSTALLED:
2292 bgp_pbim->installed = true;
2293 bgp_pbim->install_in_progress = false;
2294 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2295 zlog_debug("%s: Received IPSET_INSTALLED", __func__);
30d50e6d 2296 break;
f18a08f5 2297 case ZAPI_IPSET_FAIL_REMOVE:
30d50e6d
PG		 2298 case ZAPI_IPSET_REMOVED:
2299 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2300 zlog_debug("%s: Received IPSET REMOVED", __func__);
30d50e6d
PG		 2301 break;
2302 }
2303
2304 return 0;
2305}
2306
121f9dee 2307static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2308{
2309 uint32_t unique;
2310 char ipset_name[ZEBRA_IPSET_NAME_SIZE];
2311 enum zapi_ipset_entry_notify_owner note;
2312 struct bgp_pbr_match_entry *bgp_pbime;
2313
2314 if (!zapi_ipset_entry_notify_decode(
2315 zclient->ibuf,
2316 &unique,
2317 ipset_name,
2318 &note))
2319 return -1;
2320 bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id,
2321 ipset_name,
2322 unique);
2323 if (!bgp_pbime) {
2324 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2325 zlog_debug(
2326 "%s: Fail to look BGP match entry (%u, ID %u)",
2327 __func__, note, unique);
30d50e6d
PG		 2328 return 0;
2329 }
2330
2331 switch (note) {
2332 case ZAPI_IPSET_ENTRY_FAIL_INSTALL:
2333 if (BGP_DEBUG(zebra, ZEBRA))
2334 zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL",
15569c58 2335 __func__);
30d50e6d
PG		 2336 bgp_pbime->installed = false;
2337 bgp_pbime->install_in_progress = false;
2338 break;
2339 case ZAPI_IPSET_ENTRY_INSTALLED:
b588b642 2340 {
9b6d8fcf 2341 struct bgp_path_info *path;
4b7e6066
DS		 2342 struct bgp_path_info_extra *extra;
2343
2344 bgp_pbime->installed = true;
2345 bgp_pbime->install_in_progress = false;
2346 if (BGP_DEBUG(zebra, ZEBRA))
2347 zlog_debug("%s: Received IPSET_ENTRY_INSTALLED",
15569c58 2348 __func__);
9b6d8fcf
DS		 2349 /* link bgp_path_info to bpme */
2350 path = (struct bgp_path_info *)bgp_pbime->path;
2351 extra = bgp_path_info_extra_get(path);
f5925234 2352 listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime);
b588b642 2353 }
30d50e6d 2354 break;
f18a08f5 2355 case ZAPI_IPSET_ENTRY_FAIL_REMOVE:
30d50e6d
PG		 2356 case ZAPI_IPSET_ENTRY_REMOVED:
2357 if (BGP_DEBUG(zebra, ZEBRA))
2358 zlog_debug("%s: Received IPSET_ENTRY_REMOVED",
15569c58 2359 __func__);
30d50e6d
PG		 2360 break;
2361 }
2362 return 0;
2363}
2364
121f9dee 2365static int iptable_notify_owner(ZAPI_CALLBACK_ARGS)
c16a0a62
PG		 2366{
2367 uint32_t unique;
2368 enum zapi_iptable_notify_owner note;
2369 struct bgp_pbr_match *bgpm;
2370
2371 if (!zapi_iptable_notify_decode(
2372 zclient->ibuf,
2373 &unique,
2374 &note))
2375 return -1;
2376 bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique);
2377 if (!bgpm) {
2378 if (BGP_DEBUG(zebra, ZEBRA))
82e194ed 2379 zlog_debug("%s: Fail to look BGP iptable (%u %u)",
15569c58 2380 __func__, note, unique);
c16a0a62
PG		 2381 return 0;
2382 }
2383 switch (note) {
2384 case ZAPI_IPTABLE_FAIL_INSTALL:
2385 if (BGP_DEBUG(zebra, ZEBRA))
2386 zlog_debug("%s: Received IPTABLE_FAIL_INSTALL",
15569c58 2387 __func__);
c16a0a62
PG		 2388 bgpm->installed_in_iptable = false;
2389 bgpm->install_iptable_in_progress = false;
2390 break;
2391 case ZAPI_IPTABLE_INSTALLED:
2392 bgpm->installed_in_iptable = true;
2393 bgpm->install_iptable_in_progress = false;
2394 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2395 zlog_debug("%s: Received IPTABLE_INSTALLED", __func__);
a6b07429 2396 bgpm->action->refcnt++;
c16a0a62 2397 break;
f18a08f5 2398 case ZAPI_IPTABLE_FAIL_REMOVE:
c16a0a62
PG		 2399 case ZAPI_IPTABLE_REMOVED:
2400 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2401 zlog_debug("%s: Received IPTABLE REMOVED", __func__);
c16a0a62
PG		 2402 break;
2403 }
2404 return 0;
2405}
2406
6cfe5d15
PG		 2407/* this function is used to forge ip rule,
2408 * - either for iptable/ipset using fwmark id
121f9dee 2409 * - or for sample ip rule cmd
6cfe5d15 2410 */
30d50e6d 2411static void bgp_encode_pbr_rule_action(struct stream *s,
6cfe5d15
PG		 2412 struct bgp_pbr_action *pbra,
2413 struct bgp_pbr_rule *pbr)
30d50e6d 2414{
6cfe5d15 2415 struct prefix pfx;
f01e580f 2416 uint8_t fam = AF_INET;
30d50e6d 2417
9f1f03ec 2418 if (pbra->nh.type == NEXTHOP_TYPE_IPV6)
f01e580f 2419 fam = AF_INET6;
30d50e6d 2420 stream_putl(s, 0); /* seqno unused */
8112a7a0
PG		 2421 if (pbr)
2422 stream_putl(s, pbr->priority);
2423 else
2424 stream_putl(s, 0);
2425 /* ruleno unused - priority change
2426 * ruleno permits distinguishing various FS PBR entries
2427 * - FS PBR entries based on ipset/iptables
2428 * - FS PBR entries based on iprule
2429 * the latter may contain default routing information injected by FS
2430 */
6cfe5d15
PG		 2431 if (pbr)
2432 stream_putl(s, pbr->unique);
2433 else
2434 stream_putl(s, pbra->unique);
2435 if (pbr && pbr->flags & MATCH_IP_SRC_SET)
2436 memcpy(&pfx, &(pbr->src), sizeof(struct prefix));
2437 else {
2438 memset(&pfx, 0, sizeof(pfx));
f01e580f 2439 pfx.family = fam;
6cfe5d15
PG		 2440 }
2441 stream_putc(s, pfx.family);
2442 stream_putc(s, pfx.prefixlen);
2443 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2444
2445 stream_putw(s, 0); /* src port */
2446
6cfe5d15
PG		 2447 if (pbr && pbr->flags & MATCH_IP_DST_SET)
2448 memcpy(&pfx, &(pbr->dst), sizeof(struct prefix));
2449 else {
2450 memset(&pfx, 0, sizeof(pfx));
f01e580f 2451 pfx.family = fam;
6cfe5d15
PG		 2452 }
2453 stream_putc(s, pfx.family);
2454 stream_putc(s, pfx.prefixlen);
2455 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2456
2457 stream_putw(s, 0); /* dst port */
2458
6cfe5d15
PG		 2459 /* if pbr present, fwmark is not used */
2460 if (pbr)
2461 stream_putl(s, 0);
2462 else
2463 stream_putl(s, pbra->fwmark); /* fwmark */
30d50e6d
PG		 2464
2465 stream_putl(s, pbra->table_id);
2466
2467 stream_putl(s, 0); /* ifindex unused */
2468}
2469
2470static void bgp_encode_pbr_ipset_match(struct stream *s,
2471 struct bgp_pbr_match *pbim)
2472{
2473 stream_putl(s, pbim->unique);
2474 stream_putl(s, pbim->type);
a60b7031 2475 stream_putc(s, pbim->family);
30d50e6d
PG		 2476 stream_put(s, pbim->ipset_name,
2477 ZEBRA_IPSET_NAME_SIZE);
30d50e6d
PG		 2478}
2479
2480static void bgp_encode_pbr_ipset_entry_match(struct stream *s,
2481 struct bgp_pbr_match_entry *pbime)
2482{
2483 stream_putl(s, pbime->unique);
2484 /* check that back pointer is not null */
2485 stream_put(s, pbime->backpointer->ipset_name,
2486 ZEBRA_IPSET_NAME_SIZE);
2487
2488 stream_putc(s, pbime->src.family);
2489 stream_putc(s, pbime->src.prefixlen);
2490 stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src));
2491
2492 stream_putc(s, pbime->dst.family);
2493 stream_putc(s, pbime->dst.prefixlen);
2494 stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst));
f730e566
PG		 2495
2496 stream_putw(s, pbime->src_port_min);
2497 stream_putw(s, pbime->src_port_max);
2498 stream_putw(s, pbime->dst_port_min);
2499 stream_putw(s, pbime->dst_port_max);
2500 stream_putc(s, pbime->proto);
30d50e6d
PG		 2501}
2502
c16a0a62
PG		 2503static void bgp_encode_pbr_iptable_match(struct stream *s,
2504 struct bgp_pbr_action *bpa,
2505 struct bgp_pbr_match *pbm)
2506{
2507 stream_putl(s, pbm->unique2);
2508
2509 stream_putl(s, pbm->type);
2510
2511 stream_putl(s, pbm->flags);
2512
2513 /* TODO: correlate with what is contained
2514 * into bgp_pbr_action.
2515 * currently only forward supported
2516 */
2517 if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE)
2518 stream_putl(s, ZEBRA_IPTABLES_DROP);
2519 else
2520 stream_putl(s, ZEBRA_IPTABLES_FORWARD);
2521 stream_putl(s, bpa->fwmark);
2522 stream_put(s, pbm->ipset_name,
2523 ZEBRA_IPSET_NAME_SIZE);
a60b7031 2524 stream_putc(s, pbm->family);
83360720
PG		 2525 stream_putw(s, pbm->pkt_len_min);
2526 stream_putw(s, pbm->pkt_len_max);
2da7d62e
PG		 2527 stream_putw(s, pbm->tcp_flags);
2528 stream_putw(s, pbm->tcp_mask_flags);
4977bd6c 2529 stream_putc(s, pbm->dscp_value);
6f5617d8 2530 stream_putc(s, pbm->fragment);
f449d223 2531 stream_putc(s, pbm->protocol);
a60b7031 2532 stream_putw(s, pbm->flow_label);
c16a0a62
PG		 2533}
2534
ad4cbda1 2535/* BGP has established connection with Zebra. */
d62a17ae 2536static void bgp_zebra_connected(struct zclient *zclient)
7076bb2f 2537{
d62a17ae 2538 struct bgp *bgp;
7076bb2f 2539
d62a17ae 2540 zclient_num_connects++; /* increment even if not responding */
afbb1c59 2541
d62a17ae 2542 /* At this point, we may or may not have BGP instances configured, but
2543 * we're only interested in the default VRF (others wouldn't have learnt
2544 * the VRF from Zebra yet.)
2545 */
2546 bgp = bgp_get_default();
2547 if (!bgp)
2548 return;
ad4cbda1 2549
d62a17ae 2550 bgp_zebra_instance_register(bgp);
ad4cbda1 2551
d62a17ae 2552 /* Send the client registration */
0945d5ed 2553 bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, bgp->vrf_id);
2376c3f2 2554
955bfd98 2555 /* tell label pool that zebra is connected */
e70e9f8e 2556 bgp_lp_event_zebra_up();
955bfd98 2557
d62a17ae 2558 /* TODO - What if we have peers and networks configured, do we have to
2559 * kick-start them?
2560 */
85ef4179 2561 BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer);
7076bb2f
FL		 2562}
2563
c44ab6f1
AK		 2564static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS)
2565{
2566 esi_t esi;
2567 struct bgp *bgp = NULL;
2568 struct stream *s = NULL;
2569 char buf[ESI_STR_LEN];
2570 struct in_addr originator_ip;
2571 uint8_t active;
2572
2573 bgp = bgp_lookup_by_vrf_id(vrf_id);
2574 if (!bgp)
2575 return 0;
2576
2577 s = zclient->ibuf;
2578 stream_get(&esi, s, sizeof(esi_t));
2579 originator_ip.s_addr = stream_get_ipv4(s);
2580 active = stream_getc(s);
2581
2582 if (BGP_DEBUG(zebra, ZEBRA))
2583 zlog_debug("Rx add ESI %s originator-ip %s active %u",
2584 esi_to_str(&esi, buf, sizeof(buf)),
2585 inet_ntoa(originator_ip),
2586 active);
2587
2588 bgp_evpn_local_es_add(bgp, &esi, originator_ip, active);
2589
2590 return 0;
2591}
2592
2593static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS)
50f74cf1 2594{
2595 esi_t esi;
2596 struct bgp *bgp = NULL;
2597 struct stream *s = NULL;
2598 char buf[ESI_STR_LEN];
50f74cf1 2599
2600 memset(&esi, 0, sizeof(esi_t));
c44ab6f1
AK		 2601 bgp = bgp_lookup_by_vrf_id(vrf_id);
2602 if (!bgp)
2603 return 0;
2604
2605 s = zclient->ibuf;
2606 stream_get(&esi, s, sizeof(esi_t));
2607
2608 if (BGP_DEBUG(zebra, ZEBRA))
2609 zlog_debug("Rx del ESI %s",
2610 esi_to_str(&esi, buf, sizeof(buf)));
2611
2612 bgp_evpn_local_es_del(bgp, &esi);
2613
2614 return 0;
2615}
2616
2617static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS)
2618{
2619 esi_t esi;
2620 vni_t vni;
2621 struct bgp *bgp;
2622 struct stream *s;
2623 char buf[ESI_STR_LEN];
50f74cf1 2624
2625 bgp = bgp_lookup_by_vrf_id(vrf_id);
2626 if (!bgp)
2627 return 0;
2628
2629 s = zclient->ibuf;
2630 stream_get(&esi, s, sizeof(esi_t));
c44ab6f1 2631 vni = stream_getl(s);
50f74cf1 2632
2633 if (BGP_DEBUG(zebra, ZEBRA))
c44ab6f1
AK		 2634 zlog_debug("Rx %s ESI %s VNI %u",
2635 ZEBRA_VNI_ADD ? "add" : "del",
2636 esi_to_str(&esi, buf, sizeof(buf)), vni);
50f74cf1 2637
c44ab6f1
AK		 2638 if (cmd == ZEBRA_LOCAL_ES_EVI_ADD)
2639 bgp_evpn_local_es_evi_add(bgp, &esi, vni);
50f74cf1 2640 else
c44ab6f1
AK		 2641 bgp_evpn_local_es_evi_del(bgp, &esi, vni);
2642
50f74cf1 2643 return 0;
2644}
2645
121f9dee 2646static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS)
fe1dc5a3 2647{
c48d9f5f 2648 int filter = 0;
fe1dc5a3 2649 char buf[ETHER_ADDR_STRLEN];
b67a60d2 2650 vni_t l3vni = 0;
14e814ea 2651 struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} };
b67a60d2 2652 struct in_addr originator_ip;
fe1dc5a3 2653 struct stream *s;
0483af6e 2654 ifindex_t svi_ifindex;
14e814ea
CS		 2655 bool is_anycast_mac = false;
2656 char buf1[ETHER_ADDR_STRLEN];
fe1dc5a3 2657
14e814ea 2658 memset(&svi_rmac, 0, sizeof(struct ethaddr));
b67a60d2 2659 memset(&originator_ip, 0, sizeof(struct in_addr));
fe1dc5a3
MK		 2660 s = zclient->ibuf;
2661 l3vni = stream_getl(s);
b67a60d2 2662 if (cmd == ZEBRA_L3VNI_ADD) {
14e814ea 2663 stream_get(&svi_rmac, s, sizeof(struct ethaddr));
b67a60d2 2664 originator_ip.s_addr = stream_get_ipv4(s);
c48d9f5f 2665 stream_get(&filter, s, sizeof(int));
0483af6e 2666 svi_ifindex = stream_getl(s);
14e814ea
CS		 2667 stream_get(&vrr_rmac, s, sizeof(struct ethaddr));
2668 is_anycast_mac = stream_getl(s);
fe1dc5a3 2669
0483af6e 2670 if (BGP_DEBUG(zebra, ZEBRA))
14e814ea 2671 zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %s vrr-mac %s filter %s svi-if %u",
0483af6e 2672 vrf_id_to_name(vrf_id), l3vni,
14e814ea
CS		 2673 prefix_mac2str(&svi_rmac, buf, sizeof(buf)),
2674 prefix_mac2str(&vrr_rmac, buf1,
2675 sizeof(buf1)),
0483af6e 2676 filter ? "prefix-routes-only" : "none",
2677 svi_ifindex);
fe1dc5a3 2678
14e814ea
CS		 2679 bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac,
2680 originator_ip, filter, svi_ifindex,
2681 is_anycast_mac);
0483af6e 2682 } else {
2683 if (BGP_DEBUG(zebra, ZEBRA))
2684 zlog_debug("Rx L3-VNI DEL VRF %s VNI %u",
2685 vrf_id_to_name(vrf_id), l3vni);
2686
fe1dc5a3 2687 bgp_evpn_local_l3vni_del(l3vni, vrf_id);
0483af6e 2688 }
fe1dc5a3
MK		 2689
2690 return 0;
2691}
2692
121f9dee 2693static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS)
128ea8ab 2694{
d62a17ae 2695 struct stream *s;
2696 vni_t vni;
2697 struct bgp *bgp;
a4d82a8a 2698 struct in_addr vtep_ip = {INADDR_ANY};
29c53922 2699 vrf_id_t tenant_vrf_id = VRF_DEFAULT;
76d07c7a 2700 struct in_addr mcast_grp = {INADDR_ANY};
d62a17ae 2701
2702 s = zclient->ibuf;
2703 vni = stream_getl(s);
121f9dee 2704 if (cmd == ZEBRA_VNI_ADD) {
d62a17ae 2705 vtep_ip.s_addr = stream_get_ipv4(s);
29c53922 2706 stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t));
76d07c7a 2707 mcast_grp.s_addr = stream_get_ipv4(s);
29c53922
MK		 2708 }
2709
d62a17ae 2710 bgp = bgp_lookup_by_vrf_id(vrf_id);
2711 if (!bgp)
2712 return 0;
2713
2714 if (BGP_DEBUG(zebra, ZEBRA))
29c53922 2715 zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s",
121f9dee 2716 (cmd == ZEBRA_VNI_ADD) ? "add" : "del",
a4d82a8a
PZ		 2717 vrf_id_to_name(vrf_id), vni,
2718 vrf_id_to_name(tenant_vrf_id));
d62a17ae 2719
121f9dee 2720 if (cmd == ZEBRA_VNI_ADD)
d62a17ae 2721 return bgp_evpn_local_vni_add(
975a328e
DA		 2722 bgp, vni,
2723 vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id,
76d07c7a 2724 tenant_vrf_id, mcast_grp);
d62a17ae 2725 else
2726 return bgp_evpn_local_vni_del(bgp, vni);
128ea8ab 2727}
2728
121f9dee 2729static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS)
128ea8ab 2730{
d62a17ae 2731 struct stream *s;
2732 vni_t vni;
2733 struct bgp *bgp;
2734 struct ethaddr mac;
2735 struct ipaddr ip;
2736 int ipa_len;
2737 char buf[ETHER_ADDR_STRLEN];
2738 char buf1[INET6_ADDRSTRLEN];
f07e1c99 2739 uint8_t flags = 0;
2740 uint32_t seqnum = 0;
ec0ab544 2741 int state = 0;
c44ab6f1
AK		 2742 char buf2[ESI_STR_LEN];
2743 esi_t esi;
d62a17ae 2744
2745 memset(&ip, 0, sizeof(ip));
2746 s = zclient->ibuf;
2747 vni = stream_getl(s);
28328ea9 2748 stream_get(&mac.octet, s, ETH_ALEN);
d62a17ae 2749 ipa_len = stream_getl(s);
2750 if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN
2751 && ipa_len != IPV6_MAX_BYTELEN) {
e50f7cfd 2752 flog_err(EC_BGP_MACIP_LEN,
1c50c1c0 2753 "%u:Recv MACIP %s with invalid IP addr length %d",
121f9dee 2754 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del",
1c50c1c0 2755 ipa_len);
d62a17ae 2756 return -1;
2757 }
2758
2759 if (ipa_len) {
2760 ip.ipa_type =
2761 (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6;
2762 stream_get(&ip.ip.addr, s, ipa_len);
2763 }
121f9dee 2764 if (cmd == ZEBRA_MACIP_ADD) {
f07e1c99 2765 flags = stream_getc(s);
2766 seqnum = stream_getl(s);
c44ab6f1 2767 stream_get(&esi, s, sizeof(esi_t));
ec0ab544
AK		 2768 } else {
2769 state = stream_getl(s);
f07e1c99 2770 }
d62a17ae 2771
2772 bgp = bgp_lookup_by_vrf_id(vrf_id);
2773 if (!bgp)
2774 return 0;
2775
2776 if (BGP_DEBUG(zebra, ZEBRA))
c44ab6f1 2777 zlog_debug("%u:Recv MACIP %s f 0x%x MAC %s IP %s VNI %u seq %u state %d ESI %s",
121f9dee 2778 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del",
1a98c087 2779 flags, prefix_mac2str(&mac, buf, sizeof(buf)),
ec0ab544 2780 ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum,
c44ab6f1 2781 state, esi_to_str(&esi, buf2, sizeof(buf2)));
d62a17ae 2782
121f9dee 2783 if (cmd == ZEBRA_MACIP_ADD)
f07e1c99 2784 return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip,
c44ab6f1 2785 flags, seqnum, &esi);
d62a17ae 2786 else
ec0ab544 2787 return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state);
128ea8ab 2788}
6aeb9e78 2789
121f9dee 2790static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS)
31310b25
MK		 2791{
2792 struct stream *s = NULL;
2793 struct bgp *bgp_vrf = NULL;
2794 struct prefix p;
2795 char buf[PREFIX_STRLEN];
2796
2797 memset(&p, 0, sizeof(struct prefix));
2798 s = zclient->ibuf;
2799 stream_get(&p, s, sizeof(struct prefix));
2800
2801 bgp_vrf = bgp_lookup_by_vrf_id(vrf_id);
2802 if (!bgp_vrf)
2803 return;
2804
2805 if (BGP_DEBUG(zebra, ZEBRA))
2806 zlog_debug("Recv prefix %s %s on vrf %s",
2807 prefix2str(&p, buf, sizeof(buf)),
2808 (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL",
2809 vrf_id_to_name(vrf_id));
2810
2811 if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) {
2812
2813 if (p.family == AF_INET)
d90b788e
A		 2814 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
2815 AFI_IP, SAFI_UNICAST);
31310b25 2816 else
d90b788e
A		 2817 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
2818 AFI_IP6, SAFI_UNICAST);
31310b25
MK		 2819
2820 } else {
2821 if (p.family == AF_INET)
d90b788e
A		 2822 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP,
2823 SAFI_UNICAST);
31310b25 2824 else
d90b788e
A		 2825 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6,
2826 SAFI_UNICAST);
31310b25
MK		 2827 }
2828}
2829
121f9dee 2830static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS)
955bfd98
PZ		 2831{
2832 struct stream *s = NULL;
2833 uint8_t response_keep;
2834 uint32_t first;
2835 uint32_t last;
aec865e4
FR		 2836 uint8_t proto;
2837 unsigned short instance;
955bfd98
PZ		 2838
2839 s = zclient->ibuf;
aec865e4
FR		 2840 STREAM_GETC(s, proto);
2841 STREAM_GETW(s, instance);
955bfd98
PZ		 2842 STREAM_GETC(s, response_keep);
2843 STREAM_GETL(s, first);
2844 STREAM_GETL(s, last);
2845
aec865e4 2846 if (zclient->redist_default != proto) {
e50f7cfd 2847 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u",
1c50c1c0 2848 proto);
aec865e4
FR		 2849 return;
2850 }
2851 if (zclient->instance != instance) {
e50f7cfd 2852 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u",
1c50c1c0 2853 proto);
aec865e4
FR		 2854 return;
2855 }
2856
955bfd98
PZ		 2857 if (first > last ||
2858 first < MPLS_LABEL_UNRESERVED_MIN ||
2859 last > MPLS_LABEL_UNRESERVED_MAX) {
2860
e50f7cfd 2861 flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u",
1c50c1c0 2862 __func__, first, last);
955bfd98
PZ		 2863 return;
2864 }
2865 if (BGP_DEBUG(zebra, ZEBRA)) {
2866 zlog_debug("Label Chunk assign: %u - %u (%u) ",
2867 first, last, response_keep);
2868 }
2869
e70e9f8e 2870 bgp_lp_event_chunk(response_keep, first, last);
955bfd98
PZ		 2871
2872stream_failure: /* for STREAM_GETX */
2873 return;
2874}
2875
342213ea
DS		 2876extern struct zebra_privs_t bgpd_privs;
2877
138c5a74
DS		 2878static int bgp_ifp_create(struct interface *ifp)
2879{
ef7bd2a3
DS		 2880 struct bgp *bgp;
2881
2882 if (BGP_DEBUG(zebra, ZEBRA))
2883 zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name);
2884
2885 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
2886 if (!bgp)
2887 return 0;
2888
2889 bgp_mac_add_mac_entry(ifp);
2890
2891 bgp_update_interface_nbrs(bgp, ifp, ifp);
138c5a74
DS		 2892 return 0;
2893}
2894
f533be73 2895void bgp_zebra_init(struct thread_master *master, unsigned short instance)
718e3744 2896{
d62a17ae 2897 zclient_num_connects = 0;
2898
138c5a74
DS		 2899 if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up,
2900 bgp_ifp_down, bgp_ifp_destroy);
2901
d62a17ae 2902 /* Set default values. */
26f63a1e 2903 zclient = zclient_new(master, &zclient_options_default);
342213ea 2904 zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs);
d62a17ae 2905 zclient->zebra_connected = bgp_zebra_connected;
2906 zclient->router_id_update = bgp_router_id_update;
d62a17ae 2907 zclient->interface_address_add = bgp_interface_address_add;
2908 zclient->interface_address_delete = bgp_interface_address_delete;
2909 zclient->interface_nbr_address_add = bgp_interface_nbr_address_add;
2910 zclient->interface_nbr_address_delete =
2911 bgp_interface_nbr_address_delete;
2912 zclient->interface_vrf_update = bgp_interface_vrf_update;
74489921
RW		 2913 zclient->redistribute_route_add = zebra_read_route;
2914 zclient->redistribute_route_del = zebra_read_route;
d62a17ae 2915 zclient->nexthop_update = bgp_read_nexthop_update;
2916 zclient->import_check_update = bgp_read_import_check_update;
2917 zclient->fec_update = bgp_read_fec_update;
c44ab6f1
AK		 2918 zclient->local_es_add = bgp_zebra_process_local_es_add;
2919 zclient->local_es_del = bgp_zebra_process_local_es_del;
d62a17ae 2920 zclient->local_vni_add = bgp_zebra_process_local_vni;
c44ab6f1
AK		 2921 zclient->local_es_evi_add = bgp_zebra_process_local_es_evi;
2922 zclient->local_es_evi_del = bgp_zebra_process_local_es_evi;
d62a17ae 2923 zclient->local_vni_del = bgp_zebra_process_local_vni;
2924 zclient->local_macip_add = bgp_zebra_process_local_macip;
2925 zclient->local_macip_del = bgp_zebra_process_local_macip;
fe1dc5a3
MK		 2926 zclient->local_l3vni_add = bgp_zebra_process_local_l3vni;
2927 zclient->local_l3vni_del = bgp_zebra_process_local_l3vni;
31310b25
MK		 2928 zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix;
2929 zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix;
955bfd98 2930 zclient->label_chunk = bgp_zebra_process_label_chunk;
30d50e6d
PG		 2931 zclient->rule_notify_owner = rule_notify_owner;
2932 zclient->ipset_notify_owner = ipset_notify_owner;
2933 zclient->ipset_entry_notify_owner = ipset_entry_notify_owner;
c16a0a62 2934 zclient->iptable_notify_owner = iptable_notify_owner;
f533be73 2935 zclient->instance = instance;
718e3744 2936}
bb86c601 2937
d62a17ae 2938void bgp_zebra_destroy(void)
bb86c601 2939{
d62a17ae 2940 if (zclient == NULL)
2941 return;
2942 zclient_stop(zclient);
2943 zclient_free(zclient);
2944 zclient = NULL;
bb86c601 2945}
afbb1c59 2946
d62a17ae 2947int bgp_zebra_num_connects(void)
afbb1c59 2948{
d62a17ae 2949 return zclient_num_connects;
afbb1c59 2950}
30d50e6d 2951
6cfe5d15
PG		 2952void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra,
2953 struct bgp_pbr_rule *pbr,
2954 bool install)
30d50e6d
PG		 2955{
2956 struct stream *s;
2957
6cfe5d15 2958 if (pbra->install_in_progress && !pbr)
30d50e6d 2959 return;
6cfe5d15
PG		 2960 if (pbr && pbr->install_in_progress)
2961 return;
2962 if (BGP_DEBUG(zebra, ZEBRA)) {
2963 if (pbr)
15569c58 2964 zlog_debug("%s: table %d (ip rule) %d", __func__,
6cfe5d15
PG		 2965 pbra->table_id, install);
2966 else
15569c58 2967 zlog_debug("%s: table %d fwmark %d %d", __func__,
6cfe5d15
PG		 2968 pbra->table_id, pbra->fwmark, install);
2969 }
30d50e6d
PG		 2970 s = zclient->obuf;
2971 stream_reset(s);
2972
2973 zclient_create_header(s,
2974 install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE,
2975 VRF_DEFAULT);
2976 stream_putl(s, 1); /* send one pbr action */
2977
6cfe5d15 2978 bgp_encode_pbr_rule_action(s, pbra, pbr);
30d50e6d
PG		 2979
2980 stream_putw_at(s, 0, stream_get_endp(s));
6cfe5d15
PG		 2981 if (!zclient_send_message(zclient) && install) {
2982 if (!pbr)
2983 pbra->install_in_progress = true;
2984 else
2985 pbr->install_in_progress = true;
2986 }
30d50e6d
PG		 2987}
2988
2989void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install)
2990{
2991 struct stream *s;
2992
2993 if (pbrim->install_in_progress)
2994 return;
f0936054 2995 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2996 zlog_debug("%s: name %s type %d %d, ID %u", __func__,
2997 pbrim->ipset_name, pbrim->type, install,
2998 pbrim->unique);
30d50e6d
PG		 2999 s = zclient->obuf;
3000 stream_reset(s);
3001
3002 zclient_create_header(s,
3003 install ? ZEBRA_IPSET_CREATE :
3004 ZEBRA_IPSET_DESTROY,
3005 VRF_DEFAULT);
3006
3007 stream_putl(s, 1); /* send one pbr action */
3008
3009 bgp_encode_pbr_ipset_match(s, pbrim);
3010
3011 stream_putw_at(s, 0, stream_get_endp(s));
3012 if (!zclient_send_message(zclient) && install)
3013 pbrim->install_in_progress = true;
3014}
3015
3016void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime,
3017 bool install)
3018{
3019 struct stream *s;
3020
3021 if (pbrime->install_in_progress)
3022 return;
f0936054 3023 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3024 zlog_debug("%s: name %s %d %d, ID %u", __func__,
3025 pbrime->backpointer->ipset_name, pbrime->unique,
3026 install, pbrime->unique);
30d50e6d
PG		 3027 s = zclient->obuf;
3028 stream_reset(s);
3029
3030 zclient_create_header(s,
3031 install ? ZEBRA_IPSET_ENTRY_ADD :
3032 ZEBRA_IPSET_ENTRY_DELETE,
3033 VRF_DEFAULT);
3034
3035 stream_putl(s, 1); /* send one pbr action */
3036
3037 bgp_encode_pbr_ipset_entry_match(s, pbrime);
3038
3039 stream_putw_at(s, 0, stream_get_endp(s));
3040 if (!zclient_send_message(zclient) && install)
3041 pbrime->install_in_progress = true;
3042}
c16a0a62 3043
8f242187
PG		 3044static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s,
3045 uint8_t family)
4762c213
PG		 3046{
3047 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
3048 struct bgp_pbr_interface_head *head;
3049 struct bgp_pbr_interface *pbr_if;
3050 struct interface *ifp;
3051
3052 if (!bgp_pbr_cfg)
3053 return;
8f242187
PG		 3054 if (family == AF_INET)
3055 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
3056 else
3057 head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
4762c213 3058 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 3059 ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id);
4762c213
PG		 3060 if (ifp)
3061 stream_putl(s, ifp->ifindex);
3062 }
3063}
3064
8f242187 3065static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family)
4762c213
PG		 3066{
3067 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
3068 struct bgp_pbr_interface_head *head;
3069 struct bgp_pbr_interface *pbr_if;
3070 int cnt = 0;
3071
3072 if (!bgp_pbr_cfg)
3073 return 0;
8f242187
PG		 3074 if (family == AF_INET)
3075 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
3076 else
3077 head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
4762c213 3078 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 3079 if (if_lookup_by_name(pbr_if->name, bgp->vrf_id))
4762c213
PG		 3080 cnt++;
3081 }
3082 return cnt;
3083}
3084
c16a0a62
PG		 3085void bgp_send_pbr_iptable(struct bgp_pbr_action *pba,
3086 struct bgp_pbr_match *pbm,
3087 bool install)
3088{
3089 struct stream *s;
b5c40105 3090 int ret = 0;
4762c213 3091 int nb_interface;
c16a0a62
PG		 3092
3093 if (pbm->install_iptable_in_progress)
3094 return;
f0936054 3095 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3096 zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__,
3097 pbm->ipset_name, pbm->type, pba->fwmark, install,
88055124 3098 pbm->unique2);
c16a0a62
PG		 3099 s = zclient->obuf;
3100 stream_reset(s);
3101
3102 zclient_create_header(s,
3103 install ? ZEBRA_IPTABLE_ADD :
3104 ZEBRA_IPTABLE_DELETE,
3105 VRF_DEFAULT);
3106
3107 bgp_encode_pbr_iptable_match(s, pba, pbm);
8f242187 3108 nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family);
4762c213
PG		 3109 stream_putl(s, nb_interface);
3110 if (nb_interface)
8f242187 3111 bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family);
c16a0a62 3112 stream_putw_at(s, 0, stream_get_endp(s));
b5c40105
PG		 3113 ret = zclient_send_message(zclient);
3114 if (install) {
3115 if (ret)
3116 pba->refcnt++;
3117 else
3118 pbm->install_iptable_in_progress = true;
a6b07429 3119 }
c16a0a62 3120}
f7df1907
PG		 3121
3122/* inject in table <table_id> a default route to:
3123 * - if nexthop IP is present : to this nexthop
3124 * - if vrf is different from local : to the matching VRF
3125 */
3126void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh,
3127 afi_t afi, uint32_t table_id, bool announce)
3128{
3129 struct zapi_nexthop *api_nh;
3130 struct zapi_route api;
3131 struct prefix p;
3132
f01e580f
PG		 3133 if (!nh || (nh->type != NEXTHOP_TYPE_IPV4
3134 && nh->type != NEXTHOP_TYPE_IPV6)
f7df1907
PG		 3135 || nh->vrf_id == VRF_UNKNOWN)
3136 return;
3137 memset(&p, 0, sizeof(struct prefix));
f01e580f 3138 if (afi != AFI_IP && afi != AFI_IP6)
f7df1907 3139 return;
f01e580f 3140 p.family = afi2family(afi);
f7df1907
PG		 3141 memset(&api, 0, sizeof(api));
3142 api.vrf_id = bgp->vrf_id;
3143 api.type = ZEBRA_ROUTE_BGP;
3144 api.safi = SAFI_UNICAST;
3145 api.prefix = p;
3146 api.tableid = table_id;
3147 api.nexthop_num = 1;
3148 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
3149 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
3150 api_nh = &api.nexthops[0];
3151
38a8c751
DS		 3152 api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT;
3153 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
3154
f7df1907 3155 /* redirect IP */
f01e580f 3156 if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) {
f7df1907
PG		 3157 char buff[PREFIX_STRLEN];
3158
3159 api_nh->vrf_id = nh->vrf_id;
3160 api_nh->gate.ipv4 = nh->gate.ipv4;
3161 api_nh->type = NEXTHOP_TYPE_IPV4;
3162
3163 inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN);
3164 if (BGP_DEBUG(zebra, ZEBRA))
f01e580f
PG		 3165 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
3166 announce ? "adding" : "withdrawing",
3167 buff, table_id);
3168 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3169 : ZEBRA_ROUTE_DELETE,
3170 zclient, &api);
3171 } else if (afi == AFI_IP6 &&
3172 memcmp(&nh->gate.ipv6,
3173 &in6addr_any, sizeof(struct in6_addr))) {
3174 char buff[PREFIX_STRLEN];
3175
3176 api_nh->vrf_id = nh->vrf_id;
3177 memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6,
3178 sizeof(struct in6_addr));
3179 api_nh->type = NEXTHOP_TYPE_IPV6;
3180
3181 inet_ntop(AF_INET6, &(nh->gate.ipv6), buff, INET_ADDRSTRLEN);
3182 if (BGP_DEBUG(zebra, ZEBRA))
3183 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
d887503c 3184 announce ? "adding" : "withdrawing",
f7df1907
PG		 3185 buff, table_id);
3186 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3187 : ZEBRA_ROUTE_DELETE,
3188 zclient, &api);
3189 } else if (nh->vrf_id != bgp->vrf_id) {
3190 struct vrf *vrf;
eb4244f8 3191 struct interface *ifp;
f7df1907 3192
eb4244f8 3193 vrf = vrf_lookup_by_id(nh->vrf_id);
f7df1907
PG		 3194 if (!vrf)
3195 return;
eb4244f8
PG		 3196 /* create default route with interface <VRF>
3197 * with nexthop-vrf <VRF>
f7df1907 3198 */
eb4244f8
PG		 3199 ifp = if_lookup_by_name_all_vrf(vrf->name);
3200 if (!ifp)
3201 return;
3202 api_nh->vrf_id = nh->vrf_id;
3203 api_nh->type = NEXTHOP_TYPE_IFINDEX;
3204 api_nh->ifindex = ifp->ifindex;
3205 if (BGP_DEBUG(zebra, ZEBRA))
d887503c
PG		 3206 zlog_info("BGP: %s default route to %s table %d (redirect VRF)",
3207 announce ? "adding" : "withdrawing",
eb4244f8
PG		 3208 vrf->name, table_id);
3209 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3210 : ZEBRA_ROUTE_DELETE,
3211 zclient, &api);
f7df1907
PG		 3212 return;
3213 }
3214}
85ef4179 3215
3216/* Send capabilities to RIB */
3217int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable)
3218{
3219 struct zapi_cap api;
3220 int ret = BGP_GR_SUCCESS;
3221
3222 if (zclient == NULL) {
3223 if (BGP_DEBUG(zebra, ZEBRA))
3224 zlog_debug("zclient invalid");
3225 return BGP_GR_FAILURE;
3226 }
3227
3228 /* Check if the client is connected */
3229 if ((zclient->sock < 0) || (zclient->t_connect)) {
3230 if (BGP_DEBUG(zebra, ZEBRA))
3231 zlog_debug("client not connected");
3232 return BGP_GR_FAILURE;
3233 }
3234
3235 /* Check if capability is already sent. If the flag force is set
3236 * send the capability since this can be initial bgp configuration
3237 */
3238 memset(&api, 0, sizeof(struct zapi_cap));
3239 if (disable) {
3240 api.cap = ZEBRA_CLIENT_GR_DISABLE;
3241 api.vrf_id = bgp->vrf_id;
3242 } else {
3243 api.cap = ZEBRA_CLIENT_GR_CAPABILITIES;
3244 api.stale_removal_time = bgp->rib_stale_time;
3245 api.vrf_id = bgp->vrf_id;
3246 }
3247
36235319
QY		 3248 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
3249 < 0) {
2ba1fe69 3250 zlog_err("error sending capability");
85ef4179 3251 ret = BGP_GR_FAILURE;
3252 } else {
3253 if (disable)
3254 bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE;
3255 else
3256 bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE;
3257
3258 if (BGP_DEBUG(zebra, ZEBRA))
3259 zlog_debug("send capabilty success");
3260 ret = BGP_GR_SUCCESS;
3261 }
3262 return ret;
3263}
3264
3265/* Send route update pesding or completed status to RIB for the
3266 * specific AFI, SAFI
3267 */
3268int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type)
3269{
2ba1fe69 3270 struct zapi_cap api = {0};
85ef4179 3271
3272 if (zclient == NULL) {
3273 if (BGP_DEBUG(zebra, ZEBRA))
2ba1fe69 3274 zlog_debug("zclient == NULL, invalid");
85ef4179 3275 return BGP_GR_FAILURE;
3276 }
3277
3278 /* Check if the client is connected */
3279 if ((zclient->sock < 0) || (zclient->t_connect)) {
3280 if (BGP_DEBUG(zebra, ZEBRA))
3281 zlog_debug("client not connected");
3282 return BGP_GR_FAILURE;
3283 }
3284
85ef4179 3285 api.afi = afi;
3286 api.safi = safi;
3287 api.vrf_id = vrf_id;
3288 api.cap = type;
3289
36235319
QY		 3290 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
3291 < 0) {
85ef4179 3292 if (BGP_DEBUG(zebra, ZEBRA))
3293 zlog_debug("error sending capability");
3294 return BGP_GR_FAILURE;
3295 }
3296 return BGP_GR_SUCCESS;
3297}
3298
3299
85ef4179 3300/* Send RIB stale timer update */
3301int bgp_zebra_stale_timer_update(struct bgp *bgp)
3302{
3303 struct zapi_cap api;
3304
3305 if (zclient == NULL) {
3306 if (BGP_DEBUG(zebra, ZEBRA))
3307 zlog_debug("zclient invalid");
3308 return BGP_GR_FAILURE;
3309 }
3310
3311 /* Check if the client is connected */
3312 if ((zclient->sock < 0) || (zclient->t_connect)) {
3313 if (BGP_DEBUG(zebra, ZEBRA))
3314 zlog_debug("client not connected");
3315 return BGP_GR_FAILURE;
3316 }
3317
3318 memset(&api, 0, sizeof(struct zapi_cap));
3319 api.cap = ZEBRA_CLIENT_RIB_STALE_TIME;
3320 api.stale_removal_time = bgp->rib_stale_time;
3321 api.vrf_id = bgp->vrf_id;
36235319
QY		 3322 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
3323 < 0) {
85ef4179 3324 if (BGP_DEBUG(zebra, ZEBRA))
3325 zlog_debug("error sending capability");
3326 return BGP_GR_FAILURE;
3327 }
3328 if (BGP_DEBUG(zebra, ZEBRA))
3329 zlog_debug("send capabilty success");
3330 return BGP_GR_SUCCESS;
3331}
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