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bgpd: Convert inet_ntoa to %pI4/inet_ntop
[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(
8228a9a7
DS		 947 "Zebra rmap deny: IPv4 route %pFX nexthop %s",
948 p,
40381db7 949 inet_ntop(AF_INET, &path->attr->nexthop, buf[1],
d62a17ae 950 sizeof(buf[1])));
951 }
952 if (p->family == AF_INET6) {
953 char buf[2][INET6_ADDRSTRLEN];
77e62f2b 954 ifindex_t ifindex;
955 struct in6_addr *nexthop;
956
40381db7 957 nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex);
d62a17ae 958 zlog_debug(
8228a9a7
DS		 959 "Zebra rmap deny: IPv6 route %pFX nexthop %s",
960 p,
961 inet_ntop(AF_INET6, nexthop, buf[1],
962 sizeof(buf[1])));
d62a17ae 963 }
964 }
3dc339cd 965 return false;
73ac8160
DS		 966}
967
b98f7728
PG		 968static struct thread *bgp_tm_thread_connect;
969static bool bgp_tm_status_connected;
31c28cd7
PG		 970static bool bgp_tm_chunk_obtained;
971#define BGP_FLOWSPEC_TABLE_CHUNK 100000
972static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size;
6818e7e5 973struct bgp *bgp_tm_bgp;
b98f7728
PG		 974
975static int bgp_zebra_tm_connect(struct thread *t)
976{
977 struct zclient *zclient;
978 int delay = 10, ret = 0;
979
980 zclient = THREAD_ARG(t);
981 if (bgp_tm_status_connected && zclient->sock > 0)
982 delay = 60;
983 else {
984 bgp_tm_status_connected = false;
985 ret = tm_table_manager_connect(zclient);
986 }
987 if (ret < 0) {
b7cd3069 988 zlog_info("Error connecting to table manager!");
b98f7728
PG		 989 bgp_tm_status_connected = false;
990 } else {
991 if (!bgp_tm_status_connected)
992 zlog_debug("Connecting to table manager. Success");
993 bgp_tm_status_connected = true;
31c28cd7
PG		 994 if (!bgp_tm_chunk_obtained) {
995 if (bgp_zebra_get_table_range(bgp_tm_chunk_size,
996 &bgp_tm_min,
6818e7e5 997 &bgp_tm_max) >= 0) {
31c28cd7 998 bgp_tm_chunk_obtained = true;
6818e7e5
PG		 999 /* parse non installed entries */
1000 bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC);
1001 }
31c28cd7 1002 }
b98f7728
PG		 1003 }
1004 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
1005 &bgp_tm_thread_connect);
1006 return 0;
1007}
1008
6818e7e5
PG		 1009bool bgp_zebra_tm_chunk_obtained(void)
1010{
1011 return bgp_tm_chunk_obtained;
1012}
1013
31c28cd7
PG		 1014uint32_t bgp_zebra_tm_get_id(void)
1015{
1016 static int table_id;
1017
1018 if (!bgp_tm_chunk_obtained)
1019 return ++table_id;
1020 return bgp_tm_min++;
1021}
1022
6818e7e5 1023void bgp_zebra_init_tm_connect(struct bgp *bgp)
b98f7728
PG		 1024{
1025 int delay = 1;
1026
1027 /* if already set, do nothing
1028 */
1029 if (bgp_tm_thread_connect != NULL)
1030 return;
1031 bgp_tm_status_connected = false;
31c28cd7
PG		 1032 bgp_tm_chunk_obtained = false;
1033 bgp_tm_min = bgp_tm_max = 0;
1034 bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK;
6818e7e5 1035 bgp_tm_bgp = bgp;
b98f7728
PG		 1036 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
1037 &bgp_tm_thread_connect);
1038}
1039
1040int bgp_zebra_get_table_range(uint32_t chunk_size,
1041 uint32_t *start, uint32_t *end)
1042{
1043 int ret;
1044
1045 if (!bgp_tm_status_connected)
1046 return -1;
1047 ret = tm_get_table_chunk(zclient, chunk_size, start, end);
1048 if (ret < 0) {
e50f7cfd 1049 flog_err(EC_BGP_TABLE_CHUNK,
1c50c1c0 1050 "BGP: Error getting table chunk %u", chunk_size);
b98f7728
PG		 1051 return -1;
1052 }
1053 zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]",
1054 chunk_size, *start, *end);
1055 return 0;
1056}
1057
3dc339cd
DA		 1058static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1059 struct in_addr *nexthop,
1060 struct attr *attr, bool is_evpn,
1061 struct zapi_nexthop *api_nh)
77e62f2b 1062{
1063 api_nh->gate.ipv4 = *nexthop;
e1e71450 1064 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1065
1066 /* Need to set fields appropriately for EVPN routes imported into
1067 * a VRF (which are programmed as onlink on l3-vni SVI) as well as
1068 * connected routes leaked into a VRF.
1069 */
e1e71450 1070 if (is_evpn) {
77e62f2b 1071 api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
68a02e06 1072 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
e1e71450 1073 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1074 } else if (nh_othervrf &&
77e62f2b 1075 api_nh->gate.ipv4.s_addr == INADDR_ANY) {
1076 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1077 api_nh->ifindex = attr->nh_ifindex;
1078 } else
1079 api_nh->type = NEXTHOP_TYPE_IPV4;
1080
3dc339cd 1081 return true;
77e62f2b 1082}
1083
3dc339cd
DA		 1084static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1085 struct in6_addr *nexthop,
1086 ifindex_t ifindex,
1087 struct bgp_path_info *pi,
1088 struct bgp_path_info *best_pi,
1089 bool is_evpn,
1090 struct zapi_nexthop *api_nh)
77e62f2b 1091{
1092 struct attr *attr;
1093
40381db7 1094 attr = pi->attr;
e1e71450 1095 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1096
e1e71450 1097 if (is_evpn) {
77e62f2b 1098 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
68a02e06 1099 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
e1e71450 1100 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1101 } else if (nh_othervrf) {
77e62f2b 1102 if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) {
1103 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1104 api_nh->ifindex = attr->nh_ifindex;
1105 } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
1106 if (ifindex == 0)
3dc339cd 1107 return false;
77e62f2b 1108 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1109 api_nh->ifindex = ifindex;
1110 } else {
1111 api_nh->type = NEXTHOP_TYPE_IPV6;
1112 api_nh->ifindex = 0;
1113 }
1114 } else {
1115 if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
40381db7
DS		 1116 if (pi == best_pi
1117 && attr->mp_nexthop_len
1118 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL)
1119 if (pi->peer->nexthop.ifp)
1120 ifindex =
1121 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1122 if (!ifindex) {
40381db7
DS		 1123 if (pi->peer->conf_if)
1124 ifindex = pi->peer->ifp->ifindex;
1125 else if (pi->peer->ifname)
77e62f2b 1126 ifindex = ifname2ifindex(
40381db7
DS		 1127 pi->peer->ifname,
1128 pi->peer->bgp->vrf_id);
1129 else if (pi->peer->nexthop.ifp)
1130 ifindex =
1131 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1132 }
1133
1134 if (ifindex == 0)
3dc339cd 1135 return false;
77e62f2b 1136 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1137 api_nh->ifindex = ifindex;
1138 } else {
1139 api_nh->type = NEXTHOP_TYPE_IPV6;
1140 api_nh->ifindex = 0;
1141 }
1142 }
c2ca3e25
PG		 1143 if (nexthop)
1144 api_nh->gate.ipv6 = *nexthop;
77e62f2b 1145
3dc339cd 1146 return true;
77e62f2b 1147}
1148
f7e1c681 1149static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr,
1150 uint64_t tot_bw, uint32_t *nh_weight)
4e30bc2b 1151{
f7e1c681 1152 uint32_t bw;
1153 uint64_t tmp;
1154
1155 bw = attr->link_bw;
1156 /* zero link-bandwidth and link-bandwidth not present are treated
1157 * as the same situation.
1158 */
1159 if (!bw) {
1160 /* the only situations should be if we're either told
1161 * to skip or use default weight.
1162 */
1163 if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING)
1164 return false;
1165 *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT;
1166 } else {
1167 tmp = (uint64_t)bw * 100;
1168 *nh_weight = ((uint32_t)(tmp / tot_bw));
1169 }
1170
1171 return true;
4e30bc2b 1172}
1173
9bcb3eef 1174void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p,
4b7e6066 1175 struct bgp_path_info *info, struct bgp *bgp, afi_t afi,
d62a17ae 1176 safi_t safi)
718e3744 1177{
7cc27d41 1178 struct zapi_route api = { 0 };
9913029c 1179 struct zapi_nexthop *api_nh;
2ad4f093 1180 int nh_family;
a74e593b 1181 unsigned int valid_nh_count = 0;
2ad4f093 1182 int has_valid_label = 0;
d7c0a89a 1183 uint8_t distance;
d62a17ae 1184 struct peer *peer;
4b7e6066 1185 struct bgp_path_info *mpinfo;
d7c0a89a 1186 uint32_t metric;
b4cb15c6 1187 struct attr local_attr;
4b7e6066
DS		 1188 struct bgp_path_info local_info;
1189 struct bgp_path_info *mpinfo_cp = &local_info;
d62a17ae 1190 route_tag_t tag;
1191 mpls_label_t label;
ddb5b488 1192 int nh_othervrf = 0;
960035b2 1193 char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */
3f54c705 1194 bool is_evpn;
77e62f2b 1195 int nh_updated;
4e30bc2b 1196 bool do_wt_ecmp;
1197 uint64_t cum_bw = 0;
d62a17ae 1198
1199 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1200 * know of this instance.
1201 */
1202 if (!bgp_install_info_to_zebra(bgp))
1203 return;
1204
d62a17ae 1205 if (bgp->main_zebra_update_hold)
1206 return;
1207
960035b2 1208 if (bgp_debug_zebra(p))
ba1976db 1209 prefix2str(p, buf_prefix, sizeof(buf_prefix));
960035b2 1210
d90b788e 1211 if (safi == SAFI_FLOWSPEC) {
9bcb3eef
DS		 1212 bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi,
1213 safi, true);
d90b788e
A		 1214 return;
1215 }
529efa23 1216
ddb5b488
PZ		 1217 /*
1218 * vrf leaking support (will have only one nexthop)
1219 */
1220 if (info->extra && info->extra->bgp_orig)
1221 nh_othervrf = 1;
1222
9913029c 1223 /* Make Zebra API structure. */
9913029c
RW		 1224 api.vrf_id = bgp->vrf_id;
1225 api.type = ZEBRA_ROUTE_BGP;
1226 api.safi = safi;
1227 api.prefix = *p;
1228 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
1229
d62a17ae 1230 peer = info->peer;
1231
ddb5b488
PZ		 1232 if (info->type == ZEBRA_ROUTE_BGP
1233 && info->sub_type == BGP_ROUTE_IMPORTED) {
1234
1ec90b5e 1235 /* Obtain peer from parent */
1236 if (info->extra && info->extra->parent)
4b7e6066
DS		 1237 peer = ((struct bgp_path_info *)(info->extra->parent))
1238 ->peer;
ddb5b488
PZ		 1239 }
1240
d62a17ae 1241 tag = info->attr->tag;
1242
88493076 1243 /* If the route's source is EVPN, flag as such. */
77e62f2b 1244 is_evpn = is_route_parent_evpn(info);
1245 if (is_evpn)
90264d64 1246 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
d3135ba3 1247
d62a17ae 1248 if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED
1249 || info->sub_type == BGP_ROUTE_AGGREGATE) {
9913029c 1250 SET_FLAG(api.flags, ZEBRA_FLAG_IBGP);
4e8b02f4 1251 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
718e3744 1252 }
a39275d7 1253
c8d6f0d6 1254 if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL)
d62a17ae 1255 || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)
892fedb6 1256 || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK))
d62a17ae 1257
4e8b02f4 1258 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
d62a17ae 1259
951745bd
PG		 1260 if (info->attr->rmap_table_id) {
1261 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1262 api.tableid = info->attr->rmap_table_id;
1263 }
1264
ef3e0d04
SM		 1265 if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1266 SET_FLAG(api.message, ZAPI_MESSAGE_SRTE);
1267
2ad4f093
RW		 1268 /* Metric is currently based on the best-path only */
1269 metric = info->attr->med;
4e30bc2b 1270
1271 /* Determine if we're doing weighted ECMP or not */
f7e1c681 1272 do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info);
4e30bc2b 1273 if (do_wt_ecmp)
1274 cum_bw = bgp_path_info_mpath_cumbw(info);
1275
18ee8310 1276 for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) {
f7e1c681 1277 uint32_t nh_weight;
1278
a74e593b
RW		 1279 if (valid_nh_count >= multipath_num)
1280 break;
1281
b4cb15c6 1282 *mpinfo_cp = *mpinfo;
f7e1c681 1283 nh_weight = 0;
b4cb15c6 1284
d0d695f4
RW		 1285 /* Get nexthop address-family */
1286 if (p->family == AF_INET
1287 && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))
1288 nh_family = AF_INET;
1289 else if (p->family == AF_INET6
1290 || (p->family == AF_INET
1291 && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)))
1292 nh_family = AF_INET6;
1293 else
1294 continue;
1295
f7e1c681 1296 /* If processing for weighted ECMP, determine the next hop's
1297 * weight. Based on user setting, we may skip the next hop
1298 * in some situations.
1299 */
1300 if (do_wt_ecmp) {
1301 if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr,
1302 cum_bw, &nh_weight))
1303 continue;
1304 }
1374aec9 1305 api_nh = &api.nexthops[valid_nh_count];
ef3e0d04
SM		 1306
1307 if (CHECK_FLAG(info->attr->flag,
1308 ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1309 api_nh->srte_color = info->attr->srte_color;
1310
2ad4f093 1311 if (nh_family == AF_INET) {
ddb5b488 1312 if (bgp_debug_zebra(&api.prefix)) {
ddb5b488
PZ		 1313 if (mpinfo->extra) {
1314 zlog_debug(
1315 "%s: p=%s, bgp_is_valid_label: %d",
1316 __func__, buf_prefix,
1317 bgp_is_valid_label(
1318 &mpinfo->extra
1319 ->label[0]));
1320 } else {
1321 zlog_debug(
1322 "%s: p=%s, extra is NULL, no label",
1323 __func__, buf_prefix);
1324 }
1325 }
1326
6c0a6053 1327 if (bgp->table_map[afi][safi].name) {
d62a17ae 1328 /* Copy info and attributes, so the route-map
b4cb15c6
DL		 1329 apply doesn't modify the BGP route info. */
1330 local_attr = *mpinfo->attr;
1331 mpinfo_cp->attr = &local_attr;
ddb5b488 1332 }
b4cb15c6 1333
ddb5b488 1334 if (bgp->table_map[afi][safi].name) {
b4cb15c6 1335 if (!bgp_table_map_apply(
d62a17ae 1336 bgp->table_map[afi][safi].map, p,
b4cb15c6
DL		 1337 mpinfo_cp))
1338 continue;
1339
1340 /* metric/tag is only allowed to be
1341 * overridden on 1st nexthop */
1342 if (mpinfo == info) {
1343 metric = mpinfo_cp->attr->med;
1344 tag = mpinfo_cp->attr->tag;
d62a17ae 1345 }
b4cb15c6 1346 }
d62a17ae 1347
77e62f2b 1348 nh_updated = update_ipv4nh_for_route_install(
1349 nh_othervrf,
e1e71450 1350 nh_othervrf ?
1351 info->extra->bgp_orig : bgp,
77e62f2b 1352 &mpinfo_cp->attr->nexthop,
1353 mpinfo_cp->attr, is_evpn, api_nh);
2ad4f093 1354 } else {
f220da99 1355 ifindex_t ifindex = IFINDEX_INTERNAL;
2ad4f093 1356 struct in6_addr *nexthop;
9913029c 1357
6c0a6053 1358 if (bgp->table_map[afi][safi].name) {
ddb5b488
PZ		 1359 /* Copy info and attributes, so the route-map
1360 apply doesn't modify the BGP route info. */
1361 local_attr = *mpinfo->attr;
1362 mpinfo_cp->attr = &local_attr;
ddb5b488
PZ		 1363 }
1364
d62a17ae 1365 if (bgp->table_map[afi][safi].name) {
1366 /* Copy info and attributes, so the route-map
b4cb15c6
DL		 1367 apply doesn't modify the BGP route info. */
1368 local_attr = *mpinfo->attr;
1369 mpinfo_cp->attr = &local_attr;
1370
1371 if (!bgp_table_map_apply(
d62a17ae 1372 bgp->table_map[afi][safi].map, p,
b4cb15c6
DL		 1373 mpinfo_cp))
1374 continue;
1375
1376 /* metric/tag is only allowed to be
1377 * overridden on 1st nexthop */
1378 if (mpinfo == info) {
1379 metric = mpinfo_cp->attr->med;
1380 tag = mpinfo_cp->attr->tag;
d62a17ae 1381 }
b4cb15c6 1382 }
18ee8310
DS		 1383 nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp,
1384 &ifindex);
77e62f2b 1385 nh_updated = update_ipv6nh_for_route_install(
e1e71450 1386 nh_othervrf, nh_othervrf ?
1387 info->extra->bgp_orig : bgp,
1388 nexthop, ifindex,
77e62f2b 1389 mpinfo, info, is_evpn, api_nh);
2ad4f093 1390 }
d62a17ae 1391
77e62f2b 1392 /* Did we get proper nexthop info to update zebra? */
1393 if (!nh_updated)
1394 continue;
1395
a4d82a8a
PZ		 1396 if (mpinfo->extra
1397 && bgp_is_valid_label(&mpinfo->extra->label[0])
90264d64 1398 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
2ad4f093 1399 has_valid_label = 1;
b57ba6d2 1400 label = label_pton(&mpinfo->extra->label[0]);
9913029c 1401
68a02e06
MS		 1402 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL);
1403
2ad4f093
RW		 1404 api_nh->label_num = 1;
1405 api_nh->labels[0] = label;
d62a17ae 1406 }
22e63104 1407 memcpy(&api_nh->rmac, &(mpinfo->attr->rmac),
1408 sizeof(struct ethaddr));
f7e1c681 1409 api_nh->weight = nh_weight;
4e30bc2b 1410
2ad4f093
RW		 1411 valid_nh_count++;
1412 }
d62a17ae 1413
5cc347c4
DS		 1414 /*
1415 * When we create an aggregate route we must also
1416 * install a Null0 route in the RIB, so overwrite
1417 * what was written into api with a blackhole route
1418 */
1419 if (info->sub_type == BGP_ROUTE_AGGREGATE)
1420 zapi_route_set_blackhole(&api, BLACKHOLE_NULL);
1421 else
2ad4f093 1422 api.nexthop_num = valid_nh_count;
d62a17ae 1423
2ad4f093
RW		 1424 SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
1425 api.metric = metric;
d62a17ae 1426
2ad4f093
RW		 1427 if (tag) {
1428 SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
1429 api.tag = tag;
1430 }
d62a17ae 1431
2ad4f093
RW		 1432 distance = bgp_distance_apply(p, info, afi, safi, bgp);
1433 if (distance) {
1434 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
1435 api.distance = distance;
1436 }
d62a17ae 1437
2ad4f093
RW		 1438 if (bgp_debug_zebra(p)) {
1439 char prefix_buf[PREFIX_STRLEN];
1440 char nh_buf[INET6_ADDRSTRLEN];
d8744f72
CS		 1441 char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'};
1442 char buf1[ETHER_ADDR_STRLEN];
2ad4f093
RW		 1443 char label_buf[20];
1444 int i;
1445
1446 prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf));
1447 zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI
1448 " count %d",
1449 valid_nh_count ? "add" : "delete", bgp->vrf_id,
1450 prefix_buf, api.metric, api.tag, api.nexthop_num);
1451 for (i = 0; i < api.nexthop_num; i++) {
1452 api_nh = &api.nexthops[i];
1453
1ee069db
CS		 1454 switch (api_nh->type) {
1455 case NEXTHOP_TYPE_IFINDEX:
77e62f2b 1456 nh_buf[0] = '\0';
1ee069db
CS		 1457 break;
1458 case NEXTHOP_TYPE_IPV4:
1459 case NEXTHOP_TYPE_IPV4_IFINDEX:
1460 nh_family = AF_INET;
77e62f2b 1461 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1462 sizeof(nh_buf));
1ee069db
CS		 1463 break;
1464 case NEXTHOP_TYPE_IPV6:
1465 case NEXTHOP_TYPE_IPV6_IFINDEX:
1466 nh_family = AF_INET6;
1467 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1468 sizeof(nh_buf));
1469 break;
1470 case NEXTHOP_TYPE_BLACKHOLE:
1471 strlcpy(nh_buf, "blackhole", sizeof(nh_buf));
1472 break;
1473 default:
1474 /* Note: add new nexthop case */
1475 assert(0);
1476 break;
77e62f2b 1477 }
2ad4f093
RW		 1478
1479 label_buf[0] = '\0';
d8744f72 1480 eth_buf[0] = '\0';
a4d82a8a
PZ		 1481 if (has_valid_label
1482 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))
a7799788
CS		 1483 snprintf(label_buf, sizeof(label_buf),
1484 "label %u", api_nh->labels[0]);
d8744f72
CS		 1485 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)
1486 && !is_zero_mac(&api_nh->rmac))
a7799788
CS		 1487 snprintf(eth_buf, sizeof(eth_buf), " RMAC %s",
1488 prefix_mac2str(&api_nh->rmac,
1489 buf1, sizeof(buf1)));
4e30bc2b 1490 zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s",
77e62f2b 1491 i + 1, nh_buf, api_nh->ifindex,
4e30bc2b 1492 api_nh->vrf_id, api_nh->weight,
1493 label_buf, eth_buf);
d62a17ae 1494 }
1495 }
2ad4f093 1496
960035b2
PZ		 1497 if (bgp_debug_zebra(p)) {
1498 int recursion_flag = 0;
1499
1500 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION))
1501 recursion_flag = 1;
1502
1503 zlog_debug("%s: %s: announcing to zebra (recursion %sset)",
1504 __func__, buf_prefix,
1505 (recursion_flag ? "" : "NOT "));
1506 }
2ad4f093
RW		 1507 zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD
1508 : ZEBRA_ROUTE_DELETE,
1509 zclient, &api);
718e3744 1510}
1511
73ac8160 1512/* Announce all routes of a table to zebra */
d62a17ae 1513void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi)
73ac8160 1514{
9bcb3eef 1515 struct bgp_dest *dest;
d62a17ae 1516 struct bgp_table *table;
40381db7 1517 struct bgp_path_info *pi;
d62a17ae 1518
1519 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1520 * know of this instance.
1521 */
1522 if (!bgp_install_info_to_zebra(bgp))
1523 return;
1524
1525 table = bgp->rib[afi][safi];
1526 if (!table)
1527 return;
1528
9bcb3eef
DS		 1529 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1530 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
40381db7 1531 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
ddb5b488 1532
40381db7
DS		 1533 (pi->type == ZEBRA_ROUTE_BGP
1534 && (pi->sub_type == BGP_ROUTE_NORMAL
1535 || pi->sub_type == BGP_ROUTE_IMPORTED)))
ddb5b488 1536
9bcb3eef
DS		 1537 bgp_zebra_announce(dest,
1538 bgp_dest_get_prefix(dest),
b54892e0 1539 pi, bgp, afi, safi);
73ac8160
DS		 1540}
1541
c163f297
DS		 1542/* Announce routes of any bgp subtype of a table to zebra */
1543void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi,
1544 safi_t safi)
1545{
1546 struct bgp_dest *dest;
1547 struct bgp_table *table;
1548 struct bgp_path_info *pi;
1549
1550 if (!bgp_install_info_to_zebra(bgp))
1551 return;
1552
1553 table = bgp->rib[afi][safi];
1554 if (!table)
1555 return;
1556
1557 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1558 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
1559 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
1560 pi->type == ZEBRA_ROUTE_BGP)
1561 bgp_zebra_announce(dest,
1562 bgp_dest_get_prefix(dest),
1563 pi, bgp, afi, safi);
1564}
1565
5a1ae2c2 1566void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info,
568e10ca 1567 struct bgp *bgp, safi_t safi)
718e3744 1568{
2ad4f093 1569 struct zapi_route api;
f7df1907 1570 struct peer *peer;
ddb5b488 1571
d62a17ae 1572 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1573 * know of this instance.
1574 */
568e10ca 1575 if (!bgp_install_info_to_zebra(bgp))
d62a17ae 1576 return;
1577
f7df1907
PG		 1578 if (safi == SAFI_FLOWSPEC) {
1579 peer = info->peer;
d90b788e
A		 1580 bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false);
1581 return;
f7df1907 1582 }
529efa23 1583
2ad4f093 1584 memset(&api, 0, sizeof(api));
568e10ca 1585 api.vrf_id = bgp->vrf_id;
2ad4f093
RW		 1586 api.type = ZEBRA_ROUTE_BGP;
1587 api.safi = safi;
1588 api.prefix = *p;
d62a17ae 1589
1276ce38
PG		 1590 if (info->attr->rmap_table_id) {
1591 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1592 api.tableid = info->attr->rmap_table_id;
1593 }
1594
88493076 1595 /* If the route's source is EVPN, flag as such. */
1596 if (is_route_parent_evpn(info))
90264d64 1597 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
01740ff4 1598
2ad4f093
RW		 1599 if (bgp_debug_zebra(p)) {
1600 char buf[PREFIX_STRLEN];
d62a17ae 1601
2ad4f093 1602 prefix2str(&api.prefix, buf, sizeof(buf));
568e10ca 1603 zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf);
d62a17ae 1604 }
d62a17ae 1605
2ad4f093 1606 zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
718e3744 1607}
56c1f7d8 1608
c163f297
DS		 1609/* Withdraw all entries in a BGP instances RIB table from Zebra */
1610void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi)
1611{
1612 struct bgp_dest *dest;
1613 struct bgp_table *table;
1614 struct bgp_path_info *pi;
1615
1616 if (!bgp_install_info_to_zebra(bgp))
1617 return;
1618
1619 table = bgp->rib[afi][safi];
1620 if (!table)
1621 return;
1622
1623 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) {
1624 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
1625 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)
1626 && (pi->type == ZEBRA_ROUTE_BGP))
1627 bgp_zebra_withdraw(bgp_dest_get_prefix(dest),
1628 pi, bgp, safi);
1629 }
1630 }
1631}
1632
d7c0a89a
QY		 1633struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type,
1634 unsigned short instance)
7c8ff89e 1635{
d62a17ae 1636 struct list *red_list;
1637 struct listnode *node;
1638 struct bgp_redist *red;
7c8ff89e 1639
d62a17ae 1640 red_list = bgp->redist[afi][type];
1641 if (!red_list)
1642 return (NULL);
7c8ff89e 1643
d62a17ae 1644 for (ALL_LIST_ELEMENTS_RO(red_list, node, red))
1645 if (red->instance == instance)
1646 return red;
7c8ff89e 1647
d62a17ae 1648 return NULL;
7c8ff89e
DS		 1649}
1650
d7c0a89a
QY		 1651struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type,
1652 unsigned short instance)
7c8ff89e 1653{
d62a17ae 1654 struct list *red_list;
1655 struct bgp_redist *red;
7c8ff89e 1656
d62a17ae 1657 red = bgp_redist_lookup(bgp, afi, type, instance);
1658 if (red)
1659 return red;
7c8ff89e 1660
d62a17ae 1661 if (!bgp->redist[afi][type])
1662 bgp->redist[afi][type] = list_new();
7c8ff89e 1663
d62a17ae 1664 red_list = bgp->redist[afi][type];
9f5dc319 1665 red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist));
d62a17ae 1666 red->instance = instance;
7c8ff89e 1667
d62a17ae 1668 listnode_add(red_list, red);
7c8ff89e 1669
d62a17ae 1670 return red;
7c8ff89e
DS		 1671}
1672
d7c0a89a
QY		 1673static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type,
1674 unsigned short instance)
7c8ff89e 1675{
d62a17ae 1676 struct bgp_redist *red;
1677
1678 red = bgp_redist_lookup(bgp, afi, type, instance);
1679
1680 if (red) {
1681 listnode_delete(bgp->redist[afi][type], red);
1682 XFREE(MTYPE_BGP_REDIST, red);
acdf5e25 1683 if (!bgp->redist[afi][type]->count)
6a154c88 1684 list_delete(&bgp->redist[afi][type]);
d62a17ae 1685 }
7c8ff89e 1686}
6b0655a2 1687
718e3744 1688/* Other routes redistribution into BGP. */
d7c0a89a 1689int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type,
e923dd62 1690 unsigned short instance, bool changed)
718e3744 1691{
e923dd62 1692 /* If redistribute options are changed call
1693 * bgp_redistribute_unreg() to reset the option and withdraw
1694 * the routes
1695 */
1696 if (changed)
1697 bgp_redistribute_unreg(bgp, afi, type, instance);
718e3744 1698
d62a17ae 1699 /* Return if already redistribute flag is set. */
1700 if (instance) {
1701 if (redist_check_instance(&zclient->mi_redist[afi][type],
1702 instance))
1703 return CMD_WARNING;
718e3744 1704
d62a17ae 1705 redist_add_instance(&zclient->mi_redist[afi][type], instance);
1706 } else {
1707 if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1708 return CMD_WARNING;
7076bb2f 1709
49e5a4a0 1710#ifdef ENABLE_BGP_VNC
f920dd6d 1711 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
d62a17ae 1712 vnc_export_bgp_enable(
1713 bgp, afi); /* only enables if mode bits cfg'd */
1714 }
65efcfce
LB		 1715#endif
1716
d62a17ae 1717 vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id);
1718 }
718e3744 1719
ea12cf11
DS		 1720 /*
1721 * Don't try to register if we're not connected to Zebra or Zebra
1722 * doesn't know of this instance.
1723 *
1724 * When we come up later well resend if needed.
d62a17ae 1725 */
1726 if (!bgp_install_info_to_zebra(bgp))
ea12cf11 1727 return CMD_SUCCESS;
a39275d7 1728
d62a17ae 1729 if (BGP_DEBUG(zebra, ZEBRA))
1730 zlog_debug("Tx redistribute add VRF %u afi %d %s %d",
1731 bgp->vrf_id, afi, zebra_route_string(type),
1732 instance);
518f0eb1 1733
d62a17ae 1734 /* Send distribute add message to zebra. */
1735 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1736 instance, bgp->vrf_id);
718e3744 1737
d62a17ae 1738 return CMD_SUCCESS;
718e3744 1739}
1740
d62a17ae 1741int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1742 unsigned short instance)
518f0eb1 1743{
d62a17ae 1744 /* Don't try to send if we're not connected to Zebra or Zebra doesn't
1745 * know of this instance.
1746 */
1747 if (!bgp_install_info_to_zebra(bgp))
1748 return -1;
1749
1750 if (BGP_DEBUG(zebra, ZEBRA))
1751 zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d",
1752 bgp->vrf_id, afi, zebra_route_string(type),
1753 instance);
1754
1755 /* Send distribute add message to zebra. */
1756 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type,
1757 instance, bgp->vrf_id);
1758 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1759 instance, bgp->vrf_id);
1760
1761 return 0;
518f0eb1
DS		 1762}
1763
718e3744 1764/* Redistribute with route-map specification. */
3dc339cd
DA		 1765bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name,
1766 struct route_map *route_map)
718e3744 1767{
d62a17ae 1768 if (red->rmap.name && (strcmp(red->rmap.name, name) == 0))
3dc339cd 1769 return false;
718e3744 1770
0a22ddfb 1771 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1772 /* Decrement the count for existing routemap and
1773 * increment the count for new route map.
1774 */
1775 route_map_counter_decrement(red->rmap.map);
d62a17ae 1776 red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name);
1de27621 1777 red->rmap.map = route_map;
b4897fa5 1778 route_map_counter_increment(red->rmap.map);
718e3744 1779
3dc339cd 1780 return true;
718e3744 1781}
1782
1783/* Redistribute with metric specification. */
3dc339cd
DA		 1784bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red,
1785 afi_t afi, int type, uint32_t metric)
718e3744 1786{
9bcb3eef 1787 struct bgp_dest *dest;
40381db7 1788 struct bgp_path_info *pi;
d62a17ae 1789
1790 if (red->redist_metric_flag && red->redist_metric == metric)
3dc339cd 1791 return false;
d62a17ae 1792
1793 red->redist_metric_flag = 1;
1794 red->redist_metric = metric;
1795
9bcb3eef
DS		 1796 for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest;
1797 dest = bgp_route_next(dest)) {
1798 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
40381db7
DS		 1799 if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE
1800 && pi->type == type
1801 && pi->instance == red->instance) {
d62a17ae 1802 struct attr *old_attr;
1803 struct attr new_attr;
1804
6f4f49b2 1805 new_attr = *pi->attr;
d62a17ae 1806 new_attr.med = red->redist_metric;
40381db7
DS		 1807 old_attr = pi->attr;
1808 pi->attr = bgp_attr_intern(&new_attr);
d62a17ae 1809 bgp_attr_unintern(&old_attr);
1810
9bcb3eef 1811 bgp_path_info_set_flag(dest, pi,
18ee8310 1812 BGP_PATH_ATTR_CHANGED);
9bcb3eef 1813 bgp_process(bgp, dest, afi, SAFI_UNICAST);
d62a17ae 1814 }
1815 }
1816 }
1817
3dc339cd 1818 return true;
718e3744 1819}
1820
1821/* Unset redistribution. */
d62a17ae 1822int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1823 unsigned short instance)
718e3744 1824{
d62a17ae 1825 struct bgp_redist *red;
1826
1827 red = bgp_redist_lookup(bgp, afi, type, instance);
1828 if (!red)
1829 return CMD_SUCCESS;
1830
1831 /* Return if zebra connection is disabled. */
1832 if (instance) {
1833 if (!redist_check_instance(&zclient->mi_redist[afi][type],
1834 instance))
1835 return CMD_WARNING;
1836 redist_del_instance(&zclient->mi_redist[afi][type], instance);
1837 } else {
1838 if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1839 return CMD_WARNING;
1840 vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id);
1841 }
718e3744 1842
65efcfce 1843
d62a17ae 1844 if (bgp_install_info_to_zebra(bgp)) {
1845 /* Send distribute delete message to zebra. */
1846 if (BGP_DEBUG(zebra, ZEBRA))
1847 zlog_debug("Tx redistribute del VRF %u afi %d %s %d",
1848 bgp->vrf_id, afi, zebra_route_string(type),
1849 instance);
1850 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi,
1851 type, instance, bgp->vrf_id);
1852 }
1853
1854 /* Withdraw redistributed routes from current BGP's routing table. */
1855 bgp_redistribute_withdraw(bgp, afi, type, instance);
1856
1857 return CMD_SUCCESS;
718e3744 1858}
1859
6aeb9e78 1860/* Unset redistribution. */
d62a17ae 1861int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1862 unsigned short instance)
6aeb9e78 1863{
d62a17ae 1864 struct bgp_redist *red;
6aeb9e78 1865
ddb5b488
PZ		 1866/*
1867 * vnc and vpn->vrf checks must be before red check because
1868 * they operate within bgpd irrespective of zebra connection
1869 * status. red lookup fails if there is no zebra connection.
1870 */
49e5a4a0 1871#ifdef ENABLE_BGP_VNC
f920dd6d 1872 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
ddb5b488
PZ		 1873 vnc_export_bgp_disable(bgp, afi);
1874 }
1875#endif
ddb5b488 1876
d62a17ae 1877 red = bgp_redist_lookup(bgp, afi, type, instance);
1878 if (!red)
1879 return CMD_SUCCESS;
6aeb9e78 1880
d62a17ae 1881 bgp_redistribute_unreg(bgp, afi, type, instance);
6aeb9e78 1882
d62a17ae 1883 /* Unset route-map. */
0a22ddfb 1884 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1885 route_map_counter_decrement(red->rmap.map);
d62a17ae 1886 red->rmap.map = NULL;
6aeb9e78 1887
d62a17ae 1888 /* Unset metric. */
1889 red->redist_metric_flag = 0;
1890 red->redist_metric = 0;
6aeb9e78 1891
d62a17ae 1892 bgp_redist_del(bgp, afi, type, instance);
6aeb9e78 1893
d62a17ae 1894 return CMD_SUCCESS;
6aeb9e78
DS		 1895}
1896
fc2408ec
DS		 1897void bgp_redistribute_redo(struct bgp *bgp)
1898{
1899 afi_t afi;
1900 int i;
1901 struct list *red_list;
1902 struct listnode *node;
1903 struct bgp_redist *red;
1904
1905 for (afi = AFI_IP; afi < AFI_MAX; afi++) {
1906 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
1907
1908 red_list = bgp->redist[afi][i];
1909 if (!red_list)
1910 continue;
1911
1912 for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) {
1913 bgp_redistribute_resend(bgp, afi, i,
1914 red->instance);
1915 }
1916 }
1917 }
1918}
1919
401d56cc
DS		 1920/* Unset redistribute vrf bitmap during triggers like
1921 restart networking or delete VRFs */
1922void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id)
eb117f29 1923{
d62a17ae 1924 int i;
1925 afi_t afi;
1926
1927 for (afi = AFI_IP; afi < AFI_MAX; afi++)
1928 for (i = 0; i < ZEBRA_ROUTE_MAX; i++)
7e20406f 1929 if (vrf_bitmap_check(zclient->redist[afi][i],
401d56cc 1930 old_vrf_id))
d62a17ae 1931 vrf_bitmap_unset(zclient->redist[afi][i],
1932 old_vrf_id);
d62a17ae 1933 return;
eb117f29
SK		 1934}
1935
d62a17ae 1936void bgp_zclient_reset(void)
718e3744 1937{
d62a17ae 1938 zclient_reset(zclient);
718e3744 1939}
1940
ad4cbda1 1941/* Register this instance with Zebra. Invoked upon connect (for
1942 * default instance) and when other VRFs are learnt (or created and
1943 * already learnt).
1944 */
d62a17ae 1945void bgp_zebra_instance_register(struct bgp *bgp)
ad4cbda1 1946{
d62a17ae 1947 /* Don't try to register if we're not connected to Zebra */
1948 if (!zclient || zclient->sock < 0)
1949 return;
ad4cbda1 1950
d62a17ae 1951 if (BGP_DEBUG(zebra, ZEBRA))
1952 zlog_debug("Registering VRF %u", bgp->vrf_id);
ad4cbda1 1953
d62a17ae 1954 /* Register for router-id, interfaces, redistributed routes. */
1955 zclient_send_reg_requests(zclient, bgp->vrf_id);
7724c0a1 1956
e2f3a930
T		 1957 /* For EVPN instance, register to learn about VNIs, if appropriate. */
1958 if (bgp->advertise_all_vni)
d62a17ae 1959 bgp_zebra_advertise_all_vni(bgp, 1);
1ee0a2df
DS		 1960
1961 bgp_nht_register_nexthops(bgp);
ad4cbda1 1962}
1963
1964/* Deregister this instance with Zebra. Invoked upon the instance
1965 * being deleted (default or VRF) and it is already registered.
1966 */
d62a17ae 1967void bgp_zebra_instance_deregister(struct bgp *bgp)
ad4cbda1 1968{
d62a17ae 1969 /* Don't try to deregister if we're not connected to Zebra */
1970 if (zclient->sock < 0)
1971 return;
ad4cbda1 1972
d62a17ae 1973 if (BGP_DEBUG(zebra, ZEBRA))
1974 zlog_debug("Deregistering VRF %u", bgp->vrf_id);
ad4cbda1 1975
e2f3a930
T		 1976 /* For EVPN instance, unregister learning about VNIs, if appropriate. */
1977 if (bgp->advertise_all_vni)
d62a17ae 1978 bgp_zebra_advertise_all_vni(bgp, 0);
7724c0a1 1979
d62a17ae 1980 /* Deregister for router-id, interfaces, redistributed routes. */
1981 zclient_send_dereg_requests(zclient, bgp->vrf_id);
ad4cbda1 1982}
1983
d62a17ae 1984void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 1985{
d62a17ae 1986 int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL;
5c81b96a 1987
d62a17ae 1988 /* Don't try to initiate if we're not connected to Zebra */
1989 if (zclient->sock < 0)
1990 return;
4a04e5f7 1991
d62a17ae 1992 if (BGP_DEBUG(zebra, ZEBRA))
1993 zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id,
1994 peer->host);
4a04e5f7 1995
b3a3290e
DS		 1996 /*
1997 * If unnumbered peer (peer->ifp) call thru zapi to start RAs.
1998 * If we don't have an ifp pointer, call function to find the
1999 * ifps for a numbered enhe peer to turn RAs on.
2000 */
2001 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
2002 peer->ifp, 1, ra_interval)
2003 : bgp_nht_reg_enhe_cap_intfs(peer);
4a04e5f7 2004}
2005
d62a17ae 2006void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 2007{
d62a17ae 2008 /* Don't try to terminate if we're not connected to Zebra */
2009 if (zclient->sock < 0)
2010 return;
4a04e5f7 2011
d62a17ae 2012 if (BGP_DEBUG(zebra, ZEBRA))
2013 zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id,
2014 peer->host);
4a04e5f7 2015
b3a3290e
DS		 2016 /*
2017 * If unnumbered peer (peer->ifp) call thru zapi to stop RAs.
2018 * If we don't have an ifp pointer, call function to find the
2019 * ifps for a numbered enhe peer to turn RAs off.
2020 */
2021 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
2022 peer->ifp, 0, 0)
2023 : bgp_nht_dereg_enhe_cap_intfs(peer);
4a04e5f7 2024}
2025
31310b25
MK		 2026int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni)
2027{
2028 struct stream *s = NULL;
2029
2030 /* Check socket. */
2031 if (!zclient || zclient->sock < 0)
2032 return 0;
2033
2034 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2035 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2036 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2037 zlog_debug(
2038 "%s: No zebra instance to talk to, cannot advertise subnet",
2039 __func__);
31310b25 2040 return 0;
bb4ef1ae 2041 }
31310b25
MK		 2042
2043 s = zclient->obuf;
2044 stream_reset(s);
2045
2046 zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id);
2047 stream_putc(s, advertise);
2048 stream_put3(s, vni);
2049 stream_putw_at(s, 0, stream_get_endp(s));
2050
2051 return zclient_send_message(zclient);
2052}
2053
a8016157
CS		 2054int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni)
2055{
2056 struct stream *s = NULL;
2057
2058 /* Check socket. */
2059 if (!zclient || zclient->sock < 0)
2060 return 0;
2061
2062 /* Don't try to register if Zebra doesn't know of this instance. */
2063 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2064 return 0;
2065
2066 s = zclient->obuf;
2067 stream_reset(s);
2068
2069 zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id);
2070 stream_putc(s, advertise);
2071 stream_putl(s, vni);
2072 stream_putw_at(s, 0, stream_get_endp(s));
2073
2074 return zclient_send_message(zclient);
2075}
2076
1a98c087
MK		 2077int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni)
2078{
2079 struct stream *s = NULL;
2080
2081 /* Check socket. */
2082 if (!zclient || zclient->sock < 0)
2083 return 0;
2084
2085 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2086 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2087 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2088 zlog_debug(
2089 "%s: No zebra instance to talk to, not installing gw_macip",
2090 __func__);
1a98c087 2091 return 0;
bb4ef1ae 2092 }
1a98c087
MK		 2093
2094 s = zclient->obuf;
2095 stream_reset(s);
2096
2097 zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id);
2098 stream_putc(s, advertise);
cc6d5476 2099 stream_putl(s, vni);
1a98c087
MK		 2100 stream_putw_at(s, 0, stream_get_endp(s));
2101
2102 return zclient_send_message(zclient);
2103}
2104
fd069644
DS		 2105int bgp_zebra_vxlan_flood_control(struct bgp *bgp,
2106 enum vxlan_flood_control flood_ctrl)
2107{
2108 struct stream *s;
2109
2110 /* Check socket. */
2111 if (!zclient || zclient->sock < 0)
2112 return 0;
2113
2114 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2115 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2116 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2117 zlog_debug(
2118 "%s: No zebra instance to talk to, not installing all vni",
2119 __func__);
fd069644 2120 return 0;
bb4ef1ae 2121 }
fd069644
DS		 2122
2123 s = zclient->obuf;
2124 stream_reset(s);
2125
2126 zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id);
2127 stream_putc(s, flood_ctrl);
2128 stream_putw_at(s, 0, stream_get_endp(s));
2129
2130 return zclient_send_message(zclient);
2131}
2132
d62a17ae 2133int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise)
7724c0a1 2134{
d62a17ae 2135 struct stream *s;
7724c0a1 2136
d62a17ae 2137 /* Check socket. */
2138 if (!zclient || zclient->sock < 0)
2139 return 0;
7724c0a1 2140
d62a17ae 2141 /* Don't try to register if Zebra doesn't know of this instance. */
2142 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2143 return 0;
7724c0a1 2144
d62a17ae 2145 s = zclient->obuf;
2146 stream_reset(s);
7724c0a1 2147
d62a17ae 2148 zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id);
2149 stream_putc(s, advertise);
fbac9605
DS		 2150 /* Also inform current BUM handling setting. This is really
2151 * relevant only when 'advertise' is set.
2152 */
fd069644 2153 stream_putc(s, bgp->vxlan_flood_ctrl);
d62a17ae 2154 stream_putw_at(s, 0, stream_get_endp(s));
7724c0a1 2155
d62a17ae 2156 return zclient_send_message(zclient);
7724c0a1 2157}
2158
0b9d9cd0
CS		 2159int bgp_zebra_dup_addr_detection(struct bgp *bgp)
2160{
2161 struct stream *s;
2162
2163 /* Check socket. */
2164 if (!zclient || zclient->sock < 0)
2165 return 0;
2166
2167 /* Don't try to register if Zebra doesn't know of this instance. */
2168 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2169 return 0;
2170
2171 if (BGP_DEBUG(zebra, ZEBRA))
2172 zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u",
2173 bgp->evpn_info->dup_addr_detect ?
2174 "enable" : "disable",
2175 bgp->evpn_info->dad_max_moves,
2176 bgp->evpn_info->dad_time,
2177 bgp->evpn_info->dad_freeze ?
2178 "enable" : "disable",
2179 bgp->evpn_info->dad_freeze_time);
2180
2181 s = zclient->obuf;
2182 stream_reset(s);
2183 zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION,
2184 bgp->vrf_id);
2185 stream_putl(s, bgp->evpn_info->dup_addr_detect);
2186 stream_putl(s, bgp->evpn_info->dad_time);
2187 stream_putl(s, bgp->evpn_info->dad_max_moves);
2188 stream_putl(s, bgp->evpn_info->dad_freeze);
2189 stream_putl(s, bgp->evpn_info->dad_freeze_time);
2190 stream_putw_at(s, 0, stream_get_endp(s));
2191
2192 return zclient_send_message(zclient);
2193}
2194
121f9dee 2195static int rule_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2196{
2197 uint32_t seqno, priority, unique;
2198 enum zapi_rule_notify_owner note;
2199 struct bgp_pbr_action *bgp_pbra;
ffee150e 2200 struct bgp_pbr_rule *bgp_pbr = NULL;
58a1d249 2201 char ifname[INTERFACE_NAMSIZ + 1];
30d50e6d
PG		 2202
2203 if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique,
58a1d249 2204 ifname, &note))
30d50e6d
PG		 2205 return -1;
2206
70eabd12 2207 bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique);
30d50e6d 2208 if (!bgp_pbra) {
ffee150e
PG		 2209 /* look in bgp pbr rule */
2210 bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique);
2211 if (!bgp_pbr && note != ZAPI_RULE_REMOVED) {
2212 if (BGP_DEBUG(zebra, ZEBRA))
2213 zlog_debug("%s: Fail to look BGP rule (%u)",
15569c58 2214 __func__, unique);
ffee150e
PG		 2215 return 0;
2216 }
30d50e6d
PG		 2217 }
2218
2219 switch (note) {
2220 case ZAPI_RULE_FAIL_INSTALL:
2221 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2222 zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__);
ffee150e
PG		 2223 if (bgp_pbra) {
2224 bgp_pbra->installed = false;
2225 bgp_pbra->install_in_progress = false;
2226 } else {
2227 bgp_pbr->installed = false;
2228 bgp_pbr->install_in_progress = false;
2229 }
30d50e6d
PG		 2230 break;
2231 case ZAPI_RULE_INSTALLED:
ffee150e
PG		 2232 if (bgp_pbra) {
2233 bgp_pbra->installed = true;
2234 bgp_pbra->install_in_progress = false;
2235 } else {
ce3c0614
PG		 2236 struct bgp_path_info *path;
2237 struct bgp_path_info_extra *extra;
2238
ffee150e
PG		 2239 bgp_pbr->installed = true;
2240 bgp_pbr->install_in_progress = false;
2241 bgp_pbr->action->refcnt++;
ce3c0614
PG		 2242 /* link bgp_info to bgp_pbr */
2243 path = (struct bgp_path_info *)bgp_pbr->path;
2244 extra = bgp_path_info_extra_get(path);
f5925234
PG		 2245 listnode_add_force(&extra->bgp_fs_iprule,
2246 bgp_pbr);
ffee150e 2247 }
30d50e6d 2248 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2249 zlog_debug("%s: Received RULE_INSTALLED", __func__);
30d50e6d 2250 break;
f18a08f5 2251 case ZAPI_RULE_FAIL_REMOVE:
30d50e6d
PG		 2252 case ZAPI_RULE_REMOVED:
2253 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2254 zlog_debug("%s: Received RULE REMOVED", __func__);
30d50e6d
PG		 2255 break;
2256 }
2257
2258 return 0;
2259}
2260
121f9dee 2261static int ipset_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2262{
2263 uint32_t unique;
2264 enum zapi_ipset_notify_owner note;
2265 struct bgp_pbr_match *bgp_pbim;
2266
2267 if (!zapi_ipset_notify_decode(zclient->ibuf,
2268 &unique,
2269 &note))
2270 return -1;
2271
2272 bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique);
2273 if (!bgp_pbim) {
2274 if (BGP_DEBUG(zebra, ZEBRA))
88055124 2275 zlog_debug("%s: Fail to look BGP match ( %u, ID %u)",
15569c58 2276 __func__, note, unique);
30d50e6d
PG		 2277 return 0;
2278 }
2279
2280 switch (note) {
2281 case ZAPI_IPSET_FAIL_INSTALL:
2282 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2283 zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__);
30d50e6d
PG		 2284 bgp_pbim->installed = false;
2285 bgp_pbim->install_in_progress = false;
2286 break;
2287 case ZAPI_IPSET_INSTALLED:
2288 bgp_pbim->installed = true;
2289 bgp_pbim->install_in_progress = false;
2290 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2291 zlog_debug("%s: Received IPSET_INSTALLED", __func__);
30d50e6d 2292 break;
f18a08f5 2293 case ZAPI_IPSET_FAIL_REMOVE:
30d50e6d
PG		 2294 case ZAPI_IPSET_REMOVED:
2295 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2296 zlog_debug("%s: Received IPSET REMOVED", __func__);
30d50e6d
PG		 2297 break;
2298 }
2299
2300 return 0;
2301}
2302
121f9dee 2303static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2304{
2305 uint32_t unique;
2306 char ipset_name[ZEBRA_IPSET_NAME_SIZE];
2307 enum zapi_ipset_entry_notify_owner note;
2308 struct bgp_pbr_match_entry *bgp_pbime;
2309
2310 if (!zapi_ipset_entry_notify_decode(
2311 zclient->ibuf,
2312 &unique,
2313 ipset_name,
2314 &note))
2315 return -1;
2316 bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id,
2317 ipset_name,
2318 unique);
2319 if (!bgp_pbime) {
2320 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2321 zlog_debug(
2322 "%s: Fail to look BGP match entry (%u, ID %u)",
2323 __func__, note, unique);
30d50e6d
PG		 2324 return 0;
2325 }
2326
2327 switch (note) {
2328 case ZAPI_IPSET_ENTRY_FAIL_INSTALL:
2329 if (BGP_DEBUG(zebra, ZEBRA))
2330 zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL",
15569c58 2331 __func__);
30d50e6d
PG		 2332 bgp_pbime->installed = false;
2333 bgp_pbime->install_in_progress = false;
2334 break;
2335 case ZAPI_IPSET_ENTRY_INSTALLED:
b588b642 2336 {
9b6d8fcf 2337 struct bgp_path_info *path;
4b7e6066
DS		 2338 struct bgp_path_info_extra *extra;
2339
2340 bgp_pbime->installed = true;
2341 bgp_pbime->install_in_progress = false;
2342 if (BGP_DEBUG(zebra, ZEBRA))
2343 zlog_debug("%s: Received IPSET_ENTRY_INSTALLED",
15569c58 2344 __func__);
9b6d8fcf
DS		 2345 /* link bgp_path_info to bpme */
2346 path = (struct bgp_path_info *)bgp_pbime->path;
2347 extra = bgp_path_info_extra_get(path);
f5925234 2348 listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime);
b588b642 2349 }
30d50e6d 2350 break;
f18a08f5 2351 case ZAPI_IPSET_ENTRY_FAIL_REMOVE:
30d50e6d
PG		 2352 case ZAPI_IPSET_ENTRY_REMOVED:
2353 if (BGP_DEBUG(zebra, ZEBRA))
2354 zlog_debug("%s: Received IPSET_ENTRY_REMOVED",
15569c58 2355 __func__);
30d50e6d
PG		 2356 break;
2357 }
2358 return 0;
2359}
2360
121f9dee 2361static int iptable_notify_owner(ZAPI_CALLBACK_ARGS)
c16a0a62
PG		 2362{
2363 uint32_t unique;
2364 enum zapi_iptable_notify_owner note;
2365 struct bgp_pbr_match *bgpm;
2366
2367 if (!zapi_iptable_notify_decode(
2368 zclient->ibuf,
2369 &unique,
2370 &note))
2371 return -1;
2372 bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique);
2373 if (!bgpm) {
2374 if (BGP_DEBUG(zebra, ZEBRA))
82e194ed 2375 zlog_debug("%s: Fail to look BGP iptable (%u %u)",
15569c58 2376 __func__, note, unique);
c16a0a62
PG		 2377 return 0;
2378 }
2379 switch (note) {
2380 case ZAPI_IPTABLE_FAIL_INSTALL:
2381 if (BGP_DEBUG(zebra, ZEBRA))
2382 zlog_debug("%s: Received IPTABLE_FAIL_INSTALL",
15569c58 2383 __func__);
c16a0a62
PG		 2384 bgpm->installed_in_iptable = false;
2385 bgpm->install_iptable_in_progress = false;
2386 break;
2387 case ZAPI_IPTABLE_INSTALLED:
2388 bgpm->installed_in_iptable = true;
2389 bgpm->install_iptable_in_progress = false;
2390 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2391 zlog_debug("%s: Received IPTABLE_INSTALLED", __func__);
a6b07429 2392 bgpm->action->refcnt++;
c16a0a62 2393 break;
f18a08f5 2394 case ZAPI_IPTABLE_FAIL_REMOVE:
c16a0a62
PG		 2395 case ZAPI_IPTABLE_REMOVED:
2396 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2397 zlog_debug("%s: Received IPTABLE REMOVED", __func__);
c16a0a62
PG		 2398 break;
2399 }
2400 return 0;
2401}
2402
6cfe5d15
PG		 2403/* this function is used to forge ip rule,
2404 * - either for iptable/ipset using fwmark id
121f9dee 2405 * - or for sample ip rule cmd
6cfe5d15 2406 */
30d50e6d 2407static void bgp_encode_pbr_rule_action(struct stream *s,
6cfe5d15
PG		 2408 struct bgp_pbr_action *pbra,
2409 struct bgp_pbr_rule *pbr)
30d50e6d 2410{
6cfe5d15 2411 struct prefix pfx;
f01e580f 2412 uint8_t fam = AF_INET;
30d50e6d 2413
9f1f03ec 2414 if (pbra->nh.type == NEXTHOP_TYPE_IPV6)
f01e580f 2415 fam = AF_INET6;
30d50e6d 2416 stream_putl(s, 0); /* seqno unused */
8112a7a0
PG		 2417 if (pbr)
2418 stream_putl(s, pbr->priority);
2419 else
2420 stream_putl(s, 0);
2421 /* ruleno unused - priority change
2422 * ruleno permits distinguishing various FS PBR entries
2423 * - FS PBR entries based on ipset/iptables
2424 * - FS PBR entries based on iprule
2425 * the latter may contain default routing information injected by FS
2426 */
6cfe5d15
PG		 2427 if (pbr)
2428 stream_putl(s, pbr->unique);
2429 else
2430 stream_putl(s, pbra->unique);
2431 if (pbr && pbr->flags & MATCH_IP_SRC_SET)
2432 memcpy(&pfx, &(pbr->src), sizeof(struct prefix));
2433 else {
2434 memset(&pfx, 0, sizeof(pfx));
f01e580f 2435 pfx.family = fam;
6cfe5d15
PG		 2436 }
2437 stream_putc(s, pfx.family);
2438 stream_putc(s, pfx.prefixlen);
2439 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2440
2441 stream_putw(s, 0); /* src port */
2442
6cfe5d15
PG		 2443 if (pbr && pbr->flags & MATCH_IP_DST_SET)
2444 memcpy(&pfx, &(pbr->dst), sizeof(struct prefix));
2445 else {
2446 memset(&pfx, 0, sizeof(pfx));
f01e580f 2447 pfx.family = fam;
6cfe5d15
PG		 2448 }
2449 stream_putc(s, pfx.family);
2450 stream_putc(s, pfx.prefixlen);
2451 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2452
2453 stream_putw(s, 0); /* dst port */
2454
6cfe5d15
PG		 2455 /* if pbr present, fwmark is not used */
2456 if (pbr)
2457 stream_putl(s, 0);
2458 else
2459 stream_putl(s, pbra->fwmark); /* fwmark */
30d50e6d
PG		 2460
2461 stream_putl(s, pbra->table_id);
2462
2463 stream_putl(s, 0); /* ifindex unused */
2464}
2465
2466static void bgp_encode_pbr_ipset_match(struct stream *s,
2467 struct bgp_pbr_match *pbim)
2468{
2469 stream_putl(s, pbim->unique);
2470 stream_putl(s, pbim->type);
a60b7031 2471 stream_putc(s, pbim->family);
30d50e6d
PG		 2472 stream_put(s, pbim->ipset_name,
2473 ZEBRA_IPSET_NAME_SIZE);
30d50e6d
PG		 2474}
2475
2476static void bgp_encode_pbr_ipset_entry_match(struct stream *s,
2477 struct bgp_pbr_match_entry *pbime)
2478{
2479 stream_putl(s, pbime->unique);
2480 /* check that back pointer is not null */
2481 stream_put(s, pbime->backpointer->ipset_name,
2482 ZEBRA_IPSET_NAME_SIZE);
2483
2484 stream_putc(s, pbime->src.family);
2485 stream_putc(s, pbime->src.prefixlen);
2486 stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src));
2487
2488 stream_putc(s, pbime->dst.family);
2489 stream_putc(s, pbime->dst.prefixlen);
2490 stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst));
f730e566
PG		 2491
2492 stream_putw(s, pbime->src_port_min);
2493 stream_putw(s, pbime->src_port_max);
2494 stream_putw(s, pbime->dst_port_min);
2495 stream_putw(s, pbime->dst_port_max);
2496 stream_putc(s, pbime->proto);
30d50e6d
PG		 2497}
2498
c16a0a62
PG		 2499static void bgp_encode_pbr_iptable_match(struct stream *s,
2500 struct bgp_pbr_action *bpa,
2501 struct bgp_pbr_match *pbm)
2502{
2503 stream_putl(s, pbm->unique2);
2504
2505 stream_putl(s, pbm->type);
2506
2507 stream_putl(s, pbm->flags);
2508
2509 /* TODO: correlate with what is contained
2510 * into bgp_pbr_action.
2511 * currently only forward supported
2512 */
2513 if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE)
2514 stream_putl(s, ZEBRA_IPTABLES_DROP);
2515 else
2516 stream_putl(s, ZEBRA_IPTABLES_FORWARD);
2517 stream_putl(s, bpa->fwmark);
2518 stream_put(s, pbm->ipset_name,
2519 ZEBRA_IPSET_NAME_SIZE);
a60b7031 2520 stream_putc(s, pbm->family);
83360720
PG		 2521 stream_putw(s, pbm->pkt_len_min);
2522 stream_putw(s, pbm->pkt_len_max);
2da7d62e
PG		 2523 stream_putw(s, pbm->tcp_flags);
2524 stream_putw(s, pbm->tcp_mask_flags);
4977bd6c 2525 stream_putc(s, pbm->dscp_value);
6f5617d8 2526 stream_putc(s, pbm->fragment);
f449d223 2527 stream_putc(s, pbm->protocol);
a60b7031 2528 stream_putw(s, pbm->flow_label);
c16a0a62
PG		 2529}
2530
ad4cbda1 2531/* BGP has established connection with Zebra. */
d62a17ae 2532static void bgp_zebra_connected(struct zclient *zclient)
7076bb2f 2533{
d62a17ae 2534 struct bgp *bgp;
7076bb2f 2535
d62a17ae 2536 zclient_num_connects++; /* increment even if not responding */
afbb1c59 2537
d62a17ae 2538 /* At this point, we may or may not have BGP instances configured, but
2539 * we're only interested in the default VRF (others wouldn't have learnt
2540 * the VRF from Zebra yet.)
2541 */
2542 bgp = bgp_get_default();
2543 if (!bgp)
2544 return;
ad4cbda1 2545
d62a17ae 2546 bgp_zebra_instance_register(bgp);
ad4cbda1 2547
d62a17ae 2548 /* Send the client registration */
0945d5ed 2549 bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, bgp->vrf_id);
2376c3f2 2550
955bfd98 2551 /* tell label pool that zebra is connected */
e70e9f8e 2552 bgp_lp_event_zebra_up();
955bfd98 2553
d62a17ae 2554 /* TODO - What if we have peers and networks configured, do we have to
2555 * kick-start them?
2556 */
85ef4179 2557 BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer);
7076bb2f
FL		 2558}
2559
c44ab6f1
AK		 2560static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS)
2561{
2562 esi_t esi;
2563 struct bgp *bgp = NULL;
2564 struct stream *s = NULL;
2565 char buf[ESI_STR_LEN];
2566 struct in_addr originator_ip;
2567 uint8_t active;
2568
2569 bgp = bgp_lookup_by_vrf_id(vrf_id);
2570 if (!bgp)
2571 return 0;
2572
2573 s = zclient->ibuf;
2574 stream_get(&esi, s, sizeof(esi_t));
2575 originator_ip.s_addr = stream_get_ipv4(s);
2576 active = stream_getc(s);
2577
2578 if (BGP_DEBUG(zebra, ZEBRA))
23d0a753
DA		 2579 zlog_debug("Rx add ESI %s originator-ip %pI4 active %u",
2580 esi_to_str(&esi, buf, sizeof(buf)), &originator_ip,
2581 active);
c44ab6f1
AK		 2582
2583 bgp_evpn_local_es_add(bgp, &esi, originator_ip, active);
2584
2585 return 0;
2586}
2587
2588static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS)
50f74cf1 2589{
2590 esi_t esi;
2591 struct bgp *bgp = NULL;
2592 struct stream *s = NULL;
2593 char buf[ESI_STR_LEN];
50f74cf1 2594
2595 memset(&esi, 0, sizeof(esi_t));
c44ab6f1
AK		 2596 bgp = bgp_lookup_by_vrf_id(vrf_id);
2597 if (!bgp)
2598 return 0;
2599
2600 s = zclient->ibuf;
2601 stream_get(&esi, s, sizeof(esi_t));
2602
2603 if (BGP_DEBUG(zebra, ZEBRA))
2604 zlog_debug("Rx del ESI %s",
2605 esi_to_str(&esi, buf, sizeof(buf)));
2606
2607 bgp_evpn_local_es_del(bgp, &esi);
2608
2609 return 0;
2610}
2611
2612static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS)
2613{
2614 esi_t esi;
2615 vni_t vni;
2616 struct bgp *bgp;
2617 struct stream *s;
2618 char buf[ESI_STR_LEN];
50f74cf1 2619
2620 bgp = bgp_lookup_by_vrf_id(vrf_id);
2621 if (!bgp)
2622 return 0;
2623
2624 s = zclient->ibuf;
2625 stream_get(&esi, s, sizeof(esi_t));
c44ab6f1 2626 vni = stream_getl(s);
50f74cf1 2627
2628 if (BGP_DEBUG(zebra, ZEBRA))
c44ab6f1
AK		 2629 zlog_debug("Rx %s ESI %s VNI %u",
2630 ZEBRA_VNI_ADD ? "add" : "del",
2631 esi_to_str(&esi, buf, sizeof(buf)), vni);
50f74cf1 2632
c44ab6f1
AK		 2633 if (cmd == ZEBRA_LOCAL_ES_EVI_ADD)
2634 bgp_evpn_local_es_evi_add(bgp, &esi, vni);
50f74cf1 2635 else
c44ab6f1
AK		 2636 bgp_evpn_local_es_evi_del(bgp, &esi, vni);
2637
50f74cf1 2638 return 0;
2639}
2640
121f9dee 2641static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS)
fe1dc5a3 2642{
c48d9f5f 2643 int filter = 0;
fe1dc5a3 2644 char buf[ETHER_ADDR_STRLEN];
b67a60d2 2645 vni_t l3vni = 0;
14e814ea 2646 struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} };
b67a60d2 2647 struct in_addr originator_ip;
fe1dc5a3 2648 struct stream *s;
0483af6e 2649 ifindex_t svi_ifindex;
14e814ea
CS		 2650 bool is_anycast_mac = false;
2651 char buf1[ETHER_ADDR_STRLEN];
fe1dc5a3 2652
14e814ea 2653 memset(&svi_rmac, 0, sizeof(struct ethaddr));
b67a60d2 2654 memset(&originator_ip, 0, sizeof(struct in_addr));
fe1dc5a3
MK		 2655 s = zclient->ibuf;
2656 l3vni = stream_getl(s);
b67a60d2 2657 if (cmd == ZEBRA_L3VNI_ADD) {
14e814ea 2658 stream_get(&svi_rmac, s, sizeof(struct ethaddr));
b67a60d2 2659 originator_ip.s_addr = stream_get_ipv4(s);
c48d9f5f 2660 stream_get(&filter, s, sizeof(int));
0483af6e 2661 svi_ifindex = stream_getl(s);
14e814ea
CS		 2662 stream_get(&vrr_rmac, s, sizeof(struct ethaddr));
2663 is_anycast_mac = stream_getl(s);
fe1dc5a3 2664
0483af6e 2665 if (BGP_DEBUG(zebra, ZEBRA))
14e814ea 2666 zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %s vrr-mac %s filter %s svi-if %u",
0483af6e 2667 vrf_id_to_name(vrf_id), l3vni,
14e814ea
CS		 2668 prefix_mac2str(&svi_rmac, buf, sizeof(buf)),
2669 prefix_mac2str(&vrr_rmac, buf1,
2670 sizeof(buf1)),
0483af6e 2671 filter ? "prefix-routes-only" : "none",
2672 svi_ifindex);
fe1dc5a3 2673
14e814ea
CS		 2674 bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac,
2675 originator_ip, filter, svi_ifindex,
2676 is_anycast_mac);
0483af6e 2677 } else {
2678 if (BGP_DEBUG(zebra, ZEBRA))
2679 zlog_debug("Rx L3-VNI DEL VRF %s VNI %u",
2680 vrf_id_to_name(vrf_id), l3vni);
2681
fe1dc5a3 2682 bgp_evpn_local_l3vni_del(l3vni, vrf_id);
0483af6e 2683 }
fe1dc5a3
MK		 2684
2685 return 0;
2686}
2687
121f9dee 2688static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS)
128ea8ab 2689{
d62a17ae 2690 struct stream *s;
2691 vni_t vni;
2692 struct bgp *bgp;
a4d82a8a 2693 struct in_addr vtep_ip = {INADDR_ANY};
29c53922 2694 vrf_id_t tenant_vrf_id = VRF_DEFAULT;
76d07c7a 2695 struct in_addr mcast_grp = {INADDR_ANY};
d62a17ae 2696
2697 s = zclient->ibuf;
2698 vni = stream_getl(s);
121f9dee 2699 if (cmd == ZEBRA_VNI_ADD) {
d62a17ae 2700 vtep_ip.s_addr = stream_get_ipv4(s);
29c53922 2701 stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t));
76d07c7a 2702 mcast_grp.s_addr = stream_get_ipv4(s);
29c53922
MK		 2703 }
2704
d62a17ae 2705 bgp = bgp_lookup_by_vrf_id(vrf_id);
2706 if (!bgp)
2707 return 0;
2708
2709 if (BGP_DEBUG(zebra, ZEBRA))
29c53922 2710 zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s",
121f9dee 2711 (cmd == ZEBRA_VNI_ADD) ? "add" : "del",
a4d82a8a
PZ		 2712 vrf_id_to_name(vrf_id), vni,
2713 vrf_id_to_name(tenant_vrf_id));
d62a17ae 2714
121f9dee 2715 if (cmd == ZEBRA_VNI_ADD)
d62a17ae 2716 return bgp_evpn_local_vni_add(
975a328e
DA		 2717 bgp, vni,
2718 vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id,
76d07c7a 2719 tenant_vrf_id, mcast_grp);
d62a17ae 2720 else
2721 return bgp_evpn_local_vni_del(bgp, vni);
128ea8ab 2722}
2723
121f9dee 2724static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS)
128ea8ab 2725{
d62a17ae 2726 struct stream *s;
2727 vni_t vni;
2728 struct bgp *bgp;
2729 struct ethaddr mac;
2730 struct ipaddr ip;
2731 int ipa_len;
2732 char buf[ETHER_ADDR_STRLEN];
2733 char buf1[INET6_ADDRSTRLEN];
f07e1c99 2734 uint8_t flags = 0;
2735 uint32_t seqnum = 0;
ec0ab544 2736 int state = 0;
c44ab6f1
AK		 2737 char buf2[ESI_STR_LEN];
2738 esi_t esi;
d62a17ae 2739
2740 memset(&ip, 0, sizeof(ip));
2741 s = zclient->ibuf;
2742 vni = stream_getl(s);
28328ea9 2743 stream_get(&mac.octet, s, ETH_ALEN);
d62a17ae 2744 ipa_len = stream_getl(s);
2745 if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN
2746 && ipa_len != IPV6_MAX_BYTELEN) {
e50f7cfd 2747 flog_err(EC_BGP_MACIP_LEN,
1c50c1c0 2748 "%u:Recv MACIP %s with invalid IP addr length %d",
121f9dee 2749 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del",
1c50c1c0 2750 ipa_len);
d62a17ae 2751 return -1;
2752 }
2753
2754 if (ipa_len) {
2755 ip.ipa_type =
2756 (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6;
2757 stream_get(&ip.ip.addr, s, ipa_len);
2758 }
121f9dee 2759 if (cmd == ZEBRA_MACIP_ADD) {
f07e1c99 2760 flags = stream_getc(s);
2761 seqnum = stream_getl(s);
c44ab6f1 2762 stream_get(&esi, s, sizeof(esi_t));
ec0ab544
AK		 2763 } else {
2764 state = stream_getl(s);
f07e1c99 2765 }
d62a17ae 2766
2767 bgp = bgp_lookup_by_vrf_id(vrf_id);
2768 if (!bgp)
2769 return 0;
2770
2771 if (BGP_DEBUG(zebra, ZEBRA))
c44ab6f1 2772 zlog_debug("%u:Recv MACIP %s f 0x%x MAC %s IP %s VNI %u seq %u state %d ESI %s",
121f9dee 2773 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del",
1a98c087 2774 flags, prefix_mac2str(&mac, buf, sizeof(buf)),
ec0ab544 2775 ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum,
c44ab6f1 2776 state, esi_to_str(&esi, buf2, sizeof(buf2)));
d62a17ae 2777
121f9dee 2778 if (cmd == ZEBRA_MACIP_ADD)
f07e1c99 2779 return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip,
c44ab6f1 2780 flags, seqnum, &esi);
d62a17ae 2781 else
ec0ab544 2782 return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state);
128ea8ab 2783}
6aeb9e78 2784
121f9dee 2785static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS)
31310b25
MK		 2786{
2787 struct stream *s = NULL;
2788 struct bgp *bgp_vrf = NULL;
2789 struct prefix p;
2790 char buf[PREFIX_STRLEN];
2791
2792 memset(&p, 0, sizeof(struct prefix));
2793 s = zclient->ibuf;
2794 stream_get(&p, s, sizeof(struct prefix));
2795
2796 bgp_vrf = bgp_lookup_by_vrf_id(vrf_id);
2797 if (!bgp_vrf)
2798 return;
2799
2800 if (BGP_DEBUG(zebra, ZEBRA))
2801 zlog_debug("Recv prefix %s %s on vrf %s",
2802 prefix2str(&p, buf, sizeof(buf)),
2803 (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL",
2804 vrf_id_to_name(vrf_id));
2805
2806 if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) {
2807
2808 if (p.family == AF_INET)
d90b788e
A		 2809 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
2810 AFI_IP, SAFI_UNICAST);
31310b25 2811 else
d90b788e
A		 2812 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
2813 AFI_IP6, SAFI_UNICAST);
31310b25
MK		 2814
2815 } else {
2816 if (p.family == AF_INET)
d90b788e
A		 2817 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP,
2818 SAFI_UNICAST);
31310b25 2819 else
d90b788e
A		 2820 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6,
2821 SAFI_UNICAST);
31310b25
MK		 2822 }
2823}
2824
121f9dee 2825static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS)
955bfd98
PZ		 2826{
2827 struct stream *s = NULL;
2828 uint8_t response_keep;
2829 uint32_t first;
2830 uint32_t last;
aec865e4
FR		 2831 uint8_t proto;
2832 unsigned short instance;
955bfd98
PZ		 2833
2834 s = zclient->ibuf;
aec865e4
FR		 2835 STREAM_GETC(s, proto);
2836 STREAM_GETW(s, instance);
955bfd98
PZ		 2837 STREAM_GETC(s, response_keep);
2838 STREAM_GETL(s, first);
2839 STREAM_GETL(s, last);
2840
aec865e4 2841 if (zclient->redist_default != proto) {
e50f7cfd 2842 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u",
1c50c1c0 2843 proto);
aec865e4
FR		 2844 return;
2845 }
2846 if (zclient->instance != instance) {
e50f7cfd 2847 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u",
1c50c1c0 2848 proto);
aec865e4
FR		 2849 return;
2850 }
2851
955bfd98
PZ		 2852 if (first > last ||
2853 first < MPLS_LABEL_UNRESERVED_MIN ||
2854 last > MPLS_LABEL_UNRESERVED_MAX) {
2855
e50f7cfd 2856 flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u",
1c50c1c0 2857 __func__, first, last);
955bfd98
PZ		 2858 return;
2859 }
2860 if (BGP_DEBUG(zebra, ZEBRA)) {
2861 zlog_debug("Label Chunk assign: %u - %u (%u) ",
2862 first, last, response_keep);
2863 }
2864
e70e9f8e 2865 bgp_lp_event_chunk(response_keep, first, last);
955bfd98
PZ		 2866
2867stream_failure: /* for STREAM_GETX */
2868 return;
2869}
2870
342213ea
DS		 2871extern struct zebra_privs_t bgpd_privs;
2872
138c5a74
DS		 2873static int bgp_ifp_create(struct interface *ifp)
2874{
ef7bd2a3
DS		 2875 struct bgp *bgp;
2876
2877 if (BGP_DEBUG(zebra, ZEBRA))
2878 zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name);
2879
2880 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
2881 if (!bgp)
2882 return 0;
2883
2884 bgp_mac_add_mac_entry(ifp);
2885
2886 bgp_update_interface_nbrs(bgp, ifp, ifp);
138c5a74
DS		 2887 return 0;
2888}
2889
f533be73 2890void bgp_zebra_init(struct thread_master *master, unsigned short instance)
718e3744 2891{
d62a17ae 2892 zclient_num_connects = 0;
2893
138c5a74
DS		 2894 if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up,
2895 bgp_ifp_down, bgp_ifp_destroy);
2896
d62a17ae 2897 /* Set default values. */
26f63a1e 2898 zclient = zclient_new(master, &zclient_options_default);
342213ea 2899 zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs);
d62a17ae 2900 zclient->zebra_connected = bgp_zebra_connected;
2901 zclient->router_id_update = bgp_router_id_update;
d62a17ae 2902 zclient->interface_address_add = bgp_interface_address_add;
2903 zclient->interface_address_delete = bgp_interface_address_delete;
2904 zclient->interface_nbr_address_add = bgp_interface_nbr_address_add;
2905 zclient->interface_nbr_address_delete =
2906 bgp_interface_nbr_address_delete;
2907 zclient->interface_vrf_update = bgp_interface_vrf_update;
74489921
RW		 2908 zclient->redistribute_route_add = zebra_read_route;
2909 zclient->redistribute_route_del = zebra_read_route;
d62a17ae 2910 zclient->nexthop_update = bgp_read_nexthop_update;
2911 zclient->import_check_update = bgp_read_import_check_update;
2912 zclient->fec_update = bgp_read_fec_update;
c44ab6f1
AK		 2913 zclient->local_es_add = bgp_zebra_process_local_es_add;
2914 zclient->local_es_del = bgp_zebra_process_local_es_del;
d62a17ae 2915 zclient->local_vni_add = bgp_zebra_process_local_vni;
c44ab6f1
AK		 2916 zclient->local_es_evi_add = bgp_zebra_process_local_es_evi;
2917 zclient->local_es_evi_del = bgp_zebra_process_local_es_evi;
d62a17ae 2918 zclient->local_vni_del = bgp_zebra_process_local_vni;
2919 zclient->local_macip_add = bgp_zebra_process_local_macip;
2920 zclient->local_macip_del = bgp_zebra_process_local_macip;
fe1dc5a3
MK		 2921 zclient->local_l3vni_add = bgp_zebra_process_local_l3vni;
2922 zclient->local_l3vni_del = bgp_zebra_process_local_l3vni;
31310b25
MK		 2923 zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix;
2924 zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix;
955bfd98 2925 zclient->label_chunk = bgp_zebra_process_label_chunk;
30d50e6d
PG		 2926 zclient->rule_notify_owner = rule_notify_owner;
2927 zclient->ipset_notify_owner = ipset_notify_owner;
2928 zclient->ipset_entry_notify_owner = ipset_entry_notify_owner;
c16a0a62 2929 zclient->iptable_notify_owner = iptable_notify_owner;
f533be73 2930 zclient->instance = instance;
718e3744 2931}
bb86c601 2932
d62a17ae 2933void bgp_zebra_destroy(void)
bb86c601 2934{
d62a17ae 2935 if (zclient == NULL)
2936 return;
2937 zclient_stop(zclient);
2938 zclient_free(zclient);
2939 zclient = NULL;
bb86c601 2940}
afbb1c59 2941
d62a17ae 2942int bgp_zebra_num_connects(void)
afbb1c59 2943{
d62a17ae 2944 return zclient_num_connects;
afbb1c59 2945}
30d50e6d 2946
6cfe5d15
PG		 2947void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra,
2948 struct bgp_pbr_rule *pbr,
2949 bool install)
30d50e6d
PG		 2950{
2951 struct stream *s;
2952
6cfe5d15 2953 if (pbra->install_in_progress && !pbr)
30d50e6d 2954 return;
6cfe5d15
PG		 2955 if (pbr && pbr->install_in_progress)
2956 return;
2957 if (BGP_DEBUG(zebra, ZEBRA)) {
2958 if (pbr)
15569c58 2959 zlog_debug("%s: table %d (ip rule) %d", __func__,
6cfe5d15
PG		 2960 pbra->table_id, install);
2961 else
15569c58 2962 zlog_debug("%s: table %d fwmark %d %d", __func__,
6cfe5d15
PG		 2963 pbra->table_id, pbra->fwmark, install);
2964 }
30d50e6d
PG		 2965 s = zclient->obuf;
2966 stream_reset(s);
2967
2968 zclient_create_header(s,
2969 install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE,
2970 VRF_DEFAULT);
2971 stream_putl(s, 1); /* send one pbr action */
2972
6cfe5d15 2973 bgp_encode_pbr_rule_action(s, pbra, pbr);
30d50e6d
PG		 2974
2975 stream_putw_at(s, 0, stream_get_endp(s));
6cfe5d15
PG		 2976 if (!zclient_send_message(zclient) && install) {
2977 if (!pbr)
2978 pbra->install_in_progress = true;
2979 else
2980 pbr->install_in_progress = true;
2981 }
30d50e6d
PG		 2982}
2983
2984void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install)
2985{
2986 struct stream *s;
2987
2988 if (pbrim->install_in_progress)
2989 return;
f0936054 2990 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2991 zlog_debug("%s: name %s type %d %d, ID %u", __func__,
2992 pbrim->ipset_name, pbrim->type, install,
2993 pbrim->unique);
30d50e6d
PG		 2994 s = zclient->obuf;
2995 stream_reset(s);
2996
2997 zclient_create_header(s,
2998 install ? ZEBRA_IPSET_CREATE :
2999 ZEBRA_IPSET_DESTROY,
3000 VRF_DEFAULT);
3001
3002 stream_putl(s, 1); /* send one pbr action */
3003
3004 bgp_encode_pbr_ipset_match(s, pbrim);
3005
3006 stream_putw_at(s, 0, stream_get_endp(s));
3007 if (!zclient_send_message(zclient) && install)
3008 pbrim->install_in_progress = true;
3009}
3010
3011void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime,
3012 bool install)
3013{
3014 struct stream *s;
3015
3016 if (pbrime->install_in_progress)
3017 return;
f0936054 3018 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3019 zlog_debug("%s: name %s %d %d, ID %u", __func__,
3020 pbrime->backpointer->ipset_name, pbrime->unique,
3021 install, pbrime->unique);
30d50e6d
PG		 3022 s = zclient->obuf;
3023 stream_reset(s);
3024
3025 zclient_create_header(s,
3026 install ? ZEBRA_IPSET_ENTRY_ADD :
3027 ZEBRA_IPSET_ENTRY_DELETE,
3028 VRF_DEFAULT);
3029
3030 stream_putl(s, 1); /* send one pbr action */
3031
3032 bgp_encode_pbr_ipset_entry_match(s, pbrime);
3033
3034 stream_putw_at(s, 0, stream_get_endp(s));
3035 if (!zclient_send_message(zclient) && install)
3036 pbrime->install_in_progress = true;
3037}
c16a0a62 3038
8f242187
PG		 3039static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s,
3040 uint8_t family)
4762c213
PG		 3041{
3042 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
3043 struct bgp_pbr_interface_head *head;
3044 struct bgp_pbr_interface *pbr_if;
3045 struct interface *ifp;
3046
3047 if (!bgp_pbr_cfg)
3048 return;
8f242187
PG		 3049 if (family == AF_INET)
3050 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
3051 else
3052 head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
4762c213 3053 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 3054 ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id);
4762c213
PG		 3055 if (ifp)
3056 stream_putl(s, ifp->ifindex);
3057 }
3058}
3059
8f242187 3060static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family)
4762c213
PG		 3061{
3062 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
3063 struct bgp_pbr_interface_head *head;
3064 struct bgp_pbr_interface *pbr_if;
3065 int cnt = 0;
3066
3067 if (!bgp_pbr_cfg)
3068 return 0;
8f242187
PG		 3069 if (family == AF_INET)
3070 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
3071 else
3072 head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
4762c213 3073 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 3074 if (if_lookup_by_name(pbr_if->name, bgp->vrf_id))
4762c213
PG		 3075 cnt++;
3076 }
3077 return cnt;
3078}
3079
c16a0a62
PG		 3080void bgp_send_pbr_iptable(struct bgp_pbr_action *pba,
3081 struct bgp_pbr_match *pbm,
3082 bool install)
3083{
3084 struct stream *s;
b5c40105 3085 int ret = 0;
4762c213 3086 int nb_interface;
c16a0a62
PG		 3087
3088 if (pbm->install_iptable_in_progress)
3089 return;
f0936054 3090 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3091 zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__,
3092 pbm->ipset_name, pbm->type, pba->fwmark, install,
88055124 3093 pbm->unique2);
c16a0a62
PG		 3094 s = zclient->obuf;
3095 stream_reset(s);
3096
3097 zclient_create_header(s,
3098 install ? ZEBRA_IPTABLE_ADD :
3099 ZEBRA_IPTABLE_DELETE,
3100 VRF_DEFAULT);
3101
3102 bgp_encode_pbr_iptable_match(s, pba, pbm);
8f242187 3103 nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family);
4762c213
PG		 3104 stream_putl(s, nb_interface);
3105 if (nb_interface)
8f242187 3106 bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family);
c16a0a62 3107 stream_putw_at(s, 0, stream_get_endp(s));
b5c40105
PG		 3108 ret = zclient_send_message(zclient);
3109 if (install) {
3110 if (ret)
3111 pba->refcnt++;
3112 else
3113 pbm->install_iptable_in_progress = true;
a6b07429 3114 }
c16a0a62 3115}
f7df1907
PG		 3116
3117/* inject in table <table_id> a default route to:
3118 * - if nexthop IP is present : to this nexthop
3119 * - if vrf is different from local : to the matching VRF
3120 */
3121void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh,
3122 afi_t afi, uint32_t table_id, bool announce)
3123{
3124 struct zapi_nexthop *api_nh;
3125 struct zapi_route api;
3126 struct prefix p;
3127
f01e580f
PG		 3128 if (!nh || (nh->type != NEXTHOP_TYPE_IPV4
3129 && nh->type != NEXTHOP_TYPE_IPV6)
f7df1907
PG		 3130 || nh->vrf_id == VRF_UNKNOWN)
3131 return;
3132 memset(&p, 0, sizeof(struct prefix));
f01e580f 3133 if (afi != AFI_IP && afi != AFI_IP6)
f7df1907 3134 return;
f01e580f 3135 p.family = afi2family(afi);
f7df1907
PG		 3136 memset(&api, 0, sizeof(api));
3137 api.vrf_id = bgp->vrf_id;
3138 api.type = ZEBRA_ROUTE_BGP;
3139 api.safi = SAFI_UNICAST;
3140 api.prefix = p;
3141 api.tableid = table_id;
3142 api.nexthop_num = 1;
3143 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
3144 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
3145 api_nh = &api.nexthops[0];
3146
38a8c751
DS		 3147 api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT;
3148 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
3149
f7df1907 3150 /* redirect IP */
f01e580f 3151 if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) {
f7df1907
PG		 3152 char buff[PREFIX_STRLEN];
3153
3154 api_nh->vrf_id = nh->vrf_id;
3155 api_nh->gate.ipv4 = nh->gate.ipv4;
3156 api_nh->type = NEXTHOP_TYPE_IPV4;
3157
3158 inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN);
3159 if (BGP_DEBUG(zebra, ZEBRA))
f01e580f
PG		 3160 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
3161 announce ? "adding" : "withdrawing",
3162 buff, table_id);
3163 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3164 : ZEBRA_ROUTE_DELETE,
3165 zclient, &api);
3166 } else if (afi == AFI_IP6 &&
3167 memcmp(&nh->gate.ipv6,
3168 &in6addr_any, sizeof(struct in6_addr))) {
3169 char buff[PREFIX_STRLEN];
3170
3171 api_nh->vrf_id = nh->vrf_id;
3172 memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6,
3173 sizeof(struct in6_addr));
3174 api_nh->type = NEXTHOP_TYPE_IPV6;
3175
3176 inet_ntop(AF_INET6, &(nh->gate.ipv6), buff, INET_ADDRSTRLEN);
3177 if (BGP_DEBUG(zebra, ZEBRA))
3178 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
d887503c 3179 announce ? "adding" : "withdrawing",
f7df1907
PG		 3180 buff, table_id);
3181 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3182 : ZEBRA_ROUTE_DELETE,
3183 zclient, &api);
3184 } else if (nh->vrf_id != bgp->vrf_id) {
3185 struct vrf *vrf;
eb4244f8 3186 struct interface *ifp;
f7df1907 3187
eb4244f8 3188 vrf = vrf_lookup_by_id(nh->vrf_id);
f7df1907
PG		 3189 if (!vrf)
3190 return;
eb4244f8
PG		 3191 /* create default route with interface <VRF>
3192 * with nexthop-vrf <VRF>
f7df1907 3193 */
eb4244f8
PG		 3194 ifp = if_lookup_by_name_all_vrf(vrf->name);
3195 if (!ifp)
3196 return;
3197 api_nh->vrf_id = nh->vrf_id;
3198 api_nh->type = NEXTHOP_TYPE_IFINDEX;
3199 api_nh->ifindex = ifp->ifindex;
3200 if (BGP_DEBUG(zebra, ZEBRA))
d887503c
PG		 3201 zlog_info("BGP: %s default route to %s table %d (redirect VRF)",
3202 announce ? "adding" : "withdrawing",
eb4244f8
PG		 3203 vrf->name, table_id);
3204 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3205 : ZEBRA_ROUTE_DELETE,
3206 zclient, &api);
f7df1907
PG		 3207 return;
3208 }
3209}
85ef4179 3210
3211/* Send capabilities to RIB */
3212int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable)
3213{
3214 struct zapi_cap api;
3215 int ret = BGP_GR_SUCCESS;
3216
3217 if (zclient == NULL) {
3218 if (BGP_DEBUG(zebra, ZEBRA))
3219 zlog_debug("zclient invalid");
3220 return BGP_GR_FAILURE;
3221 }
3222
3223 /* Check if the client is connected */
3224 if ((zclient->sock < 0) || (zclient->t_connect)) {
3225 if (BGP_DEBUG(zebra, ZEBRA))
3226 zlog_debug("client not connected");
3227 return BGP_GR_FAILURE;
3228 }
3229
3230 /* Check if capability is already sent. If the flag force is set
3231 * send the capability since this can be initial bgp configuration
3232 */
3233 memset(&api, 0, sizeof(struct zapi_cap));
3234 if (disable) {
3235 api.cap = ZEBRA_CLIENT_GR_DISABLE;
3236 api.vrf_id = bgp->vrf_id;
3237 } else {
3238 api.cap = ZEBRA_CLIENT_GR_CAPABILITIES;
3239 api.stale_removal_time = bgp->rib_stale_time;
3240 api.vrf_id = bgp->vrf_id;
3241 }
3242
36235319
QY		 3243 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
3244 < 0) {
2ba1fe69 3245 zlog_err("error sending capability");
85ef4179 3246 ret = BGP_GR_FAILURE;
3247 } else {
3248 if (disable)
3249 bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE;
3250 else
3251 bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE;
3252
3253 if (BGP_DEBUG(zebra, ZEBRA))
3254 zlog_debug("send capabilty success");
3255 ret = BGP_GR_SUCCESS;
3256 }
3257 return ret;
3258}
3259
3260/* Send route update pesding or completed status to RIB for the
3261 * specific AFI, SAFI
3262 */
3263int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type)
3264{
2ba1fe69 3265 struct zapi_cap api = {0};
85ef4179 3266
3267 if (zclient == NULL) {
3268 if (BGP_DEBUG(zebra, ZEBRA))
2ba1fe69 3269 zlog_debug("zclient == NULL, invalid");
85ef4179 3270 return BGP_GR_FAILURE;
3271 }
3272
3273 /* Check if the client is connected */
3274 if ((zclient->sock < 0) || (zclient->t_connect)) {
3275 if (BGP_DEBUG(zebra, ZEBRA))
3276 zlog_debug("client not connected");
3277 return BGP_GR_FAILURE;
3278 }
3279
85ef4179 3280 api.afi = afi;
3281 api.safi = safi;
3282 api.vrf_id = vrf_id;
3283 api.cap = type;
3284
36235319
QY		 3285 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
3286 < 0) {
85ef4179 3287 if (BGP_DEBUG(zebra, ZEBRA))
3288 zlog_debug("error sending capability");
3289 return BGP_GR_FAILURE;
3290 }
3291 return BGP_GR_SUCCESS;
3292}
3293
3294
85ef4179 3295/* Send RIB stale timer update */
3296int bgp_zebra_stale_timer_update(struct bgp *bgp)
3297{
3298 struct zapi_cap api;
3299
3300 if (zclient == NULL) {
3301 if (BGP_DEBUG(zebra, ZEBRA))
3302 zlog_debug("zclient invalid");
3303 return BGP_GR_FAILURE;
3304 }
3305
3306 /* Check if the client is connected */
3307 if ((zclient->sock < 0) || (zclient->t_connect)) {
3308 if (BGP_DEBUG(zebra, ZEBRA))
3309 zlog_debug("client not connected");
3310 return BGP_GR_FAILURE;
3311 }
3312
3313 memset(&api, 0, sizeof(struct zapi_cap));
3314 api.cap = ZEBRA_CLIENT_RIB_STALE_TIME;
3315 api.stale_removal_time = bgp->rib_stale_time;
3316 api.vrf_id = bgp->vrf_id;
36235319
QY		 3317 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
3318 < 0) {
85ef4179 3319 if (BGP_DEBUG(zebra, ZEBRA))
3320 zlog_debug("error sending capability");
3321 return BGP_GR_FAILURE;
3322 }
3323 if (BGP_DEBUG(zebra, ZEBRA))
3324 zlog_debug("send capabilty success");
3325 return BGP_GR_SUCCESS;
3326}
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