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bgpd: advertising vpn-rib include SRv6-SID (step4)
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718e3744 1/* zebra client
896014f4
DL		 2 * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro
3 *
4 * This file is part of GNU Zebra.
5 *
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
718e3744 20
21#include <zebra.h>
22
23#include "command.h"
24#include "stream.h"
25#include "network.h"
26#include "prefix.h"
27#include "log.h"
28#include "sockunion.h"
29#include "zclient.h"
30#include "routemap.h"
31#include "thread.h"
3f9c7369 32#include "queue.h"
6e919709 33#include "memory.h"
856ca177 34#include "lib/json.h"
2376c3f2 35#include "lib/bfd.h"
94effaf0 36#include "lib/route_opaque.h"
039f3a34 37#include "filter.h"
cd1964ff 38#include "mpls.h"
128ea8ab 39#include "vxlan.h"
6cfe5d15 40#include "pbr.h"
718e3744 41
42#include "bgpd/bgpd.h"
43#include "bgpd/bgp_route.h"
44#include "bgpd/bgp_attr.h"
e46723a5 45#include "bgpd/bgp_aspath.h"
718e3744 46#include "bgpd/bgp_nexthop.h"
47#include "bgpd/bgp_zebra.h"
48#include "bgpd/bgp_fsm.h"
a39275d7 49#include "bgpd/bgp_debug.h"
14454c9f 50#include "bgpd/bgp_errors.h"
8196f13d 51#include "bgpd/bgp_mpath.h"
fb018d25 52#include "bgpd/bgp_nexthop.h"
ffd0c037 53#include "bgpd/bgp_nht.h"
8c4f6381 54#include "bgpd/bgp_bfd.h"
cd1964ff 55#include "bgpd/bgp_label.h"
49e5a4a0 56#ifdef ENABLE_BGP_VNC
d62a17ae 57#include "bgpd/rfapi/rfapi_backend.h"
58#include "bgpd/rfapi/vnc_export_bgp.h"
65efcfce 59#endif
128ea8ab 60#include "bgpd/bgp_evpn.h"
ddb5b488 61#include "bgpd/bgp_mplsvpn.h"
955bfd98 62#include "bgpd/bgp_labelpool.h"
30d50e6d 63#include "bgpd/bgp_pbr.h"
0b9d9cd0 64#include "bgpd/bgp_evpn_private.h"
c44ab6f1 65#include "bgpd/bgp_evpn_mh.h"
6a69ac51 66#include "bgpd/bgp_mac.h"
6b0655a2 67
718e3744 68/* All information about zebra. */
228da428 69struct zclient *zclient = NULL;
718e3744 70
0d020cd6
PR		 71/* hook to indicate vrf status change for SNMP */
72DEFINE_HOOK(bgp_vrf_status_changed, (struct bgp *bgp, struct interface *ifp),
8451921b 73 (bgp, ifp));
0d020cd6 74
ad4cbda1 75/* Can we install into zebra? */
3dc339cd 76static inline bool bgp_install_info_to_zebra(struct bgp *bgp)
ad4cbda1 77{
d62a17ae 78 if (zclient->sock <= 0)
3dc339cd 79 return false;
ad4cbda1 80
bb4ef1ae 81 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
15569c58
DA		 82 zlog_debug(
83 "%s: No zebra instance to talk to, not installing information",
84 __func__);
3dc339cd 85 return false;
bb4ef1ae 86 }
ad4cbda1 87
3dc339cd 88 return true;
ad4cbda1 89}
90
afbb1c59
LB		 91int zclient_num_connects;
92
18a6dce6 93/* Router-id update message from zebra. */
121f9dee 94static int bgp_router_id_update(ZAPI_CALLBACK_ARGS)
718e3744 95{
d62a17ae 96 struct prefix router_id;
718e3744 97
d62a17ae 98 zebra_router_id_update_read(zclient->ibuf, &router_id);
a39275d7 99
2dbe669b
DA		 100 if (BGP_DEBUG(zebra, ZEBRA))
101 zlog_debug("Rx Router Id update VRF %u Id %pFX", vrf_id,
102 &router_id);
a39275d7 103
d62a17ae 104 bgp_router_id_zebra_bump(vrf_id, &router_id);
105 return 0;
718e3744 106}
107
fb018d25 108/* Nexthop update message from zebra. */
121f9dee 109static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS)
fb018d25 110{
121f9dee 111 bgp_parse_nexthop_update(cmd, vrf_id);
d62a17ae 112 return 0;
078430f6
DS		 113}
114
121f9dee 115static int bgp_read_import_check_update(ZAPI_CALLBACK_ARGS)
078430f6 116{
121f9dee 117 bgp_parse_nexthop_update(cmd, vrf_id);
d62a17ae 118 return 0;
fb018d25
DS		 119}
120
4a04e5f7 121/* Set or clear interface on which unnumbered neighbor is configured. This
122 * would in turn cause BGP to initiate or turn off IPv6 RAs on this
123 * interface.
124 */
d62a17ae 125static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp,
126 struct interface *upd_ifp)
4a04e5f7 127{
d62a17ae 128 struct listnode *node, *nnode;
129 struct peer *peer;
130
131 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
132 if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) {
133 if (upd_ifp) {
134 peer->ifp = upd_ifp;
135 bgp_zebra_initiate_radv(bgp, peer);
136 } else {
137 bgp_zebra_terminate_radv(bgp, peer);
138 peer->ifp = upd_ifp;
139 }
140 }
141 }
4a04e5f7 142}
143
d62a17ae 144static int bgp_read_fec_update(int command, struct zclient *zclient,
145 zebra_size_t length)
cd1964ff 146{
d62a17ae 147 bgp_parse_fec_update();
148 return 0;
cd1964ff
DS		 149}
150
d62a17ae 151static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp)
a80beece 152{
d62a17ae 153 struct listnode *node, *nnode;
154 struct peer *peer;
155
156 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
157 if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)
158 && peer->status != Established) {
159 if (peer_active(peer))
160 BGP_EVENT_ADD(peer, BGP_Stop);
161 BGP_EVENT_ADD(peer, BGP_Start);
162 }
163 }
a80beece
DS		 164}
165
d62a17ae 166static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc)
a197c47c 167{
d62a17ae 168 struct listnode *node;
169 struct connected *connected;
170 struct interface *ifp;
171 struct prefix *p;
172
173 /* Kick-off the FSM for any relevant peers only if there is a
174 * valid local address on the interface.
175 */
176 ifp = ifc->ifp;
177 for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) {
178 p = connected->address;
179 if (p->family == AF_INET6
180 && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6))
181 break;
182 }
183 if (!connected)
184 return;
185
186 bgp_start_interface_nbrs(bgp, ifp);
a197c47c
DS		 187}
188
d62a17ae 189static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc,
190 int del)
a80beece 191{
d62a17ae 192 struct listnode *node, *nnode;
193 struct peer *peer;
194 struct interface *ifp;
195
196 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
197 if (peer->conf_if
198 && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) {
199 peer->last_reset = PEER_DOWN_NBR_ADDR_DEL;
200 BGP_EVENT_ADD(peer, BGP_Stop);
201 }
202 }
203 /* Free neighbor also, if we're asked to. */
204 if (del) {
205 ifp = ifc->ifp;
206 listnode_delete(ifp->nbr_connected, ifc);
207 nbr_connected_free(ifc);
208 }
a80beece
DS		 209}
210
3c3c3252 211static int bgp_ifp_destroy(struct interface *ifp)
718e3744 212{
d62a17ae 213 struct bgp *bgp;
718e3744 214
3c3c3252 215 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
a4499b83 216
d62a17ae 217 if (BGP_DEBUG(zebra, ZEBRA))
3835984f 218 zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf_id, ifp->name);
a39275d7 219
0d020cd6 220 if (bgp) {
85751d1d 221 bgp_update_interface_nbrs(bgp, ifp, NULL);
0d020cd6
PR		 222 hook_call(bgp_vrf_status_changed, bgp, ifp);
223 }
64745052 224
6a69ac51
DS		 225 bgp_mac_del_mac_entry(ifp);
226
d62a17ae 227 return 0;
718e3744 228}
229
ddbf3e60 230static int bgp_ifp_up(struct interface *ifp)
718e3744 231{
d62a17ae 232 struct connected *c;
233 struct nbr_connected *nc;
234 struct listnode *node, *nnode;
235 struct bgp *bgp;
6aeb9e78 236
ddbf3e60 237 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
718e3744 238
6a69ac51
DS		 239 bgp_mac_add_mac_entry(ifp);
240
d62a17ae 241 if (BGP_DEBUG(zebra, ZEBRA))
ddbf3e60 242 zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf_id, ifp->name);
ad4cbda1 243
85751d1d
DS		 244 if (!bgp)
245 return 0;
246
d62a17ae 247 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
248 bgp_connected_add(bgp, c);
718e3744 249
d62a17ae 250 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
251 bgp_nbr_connected_add(bgp, nc);
a80beece 252
0d020cd6 253 hook_call(bgp_vrf_status_changed, bgp, ifp);
8761cd6d
DS		 254 bgp_nht_ifp_up(ifp);
255
d62a17ae 256 return 0;
718e3744 257}
258
b0b69e59 259static int bgp_ifp_down(struct interface *ifp)
718e3744 260{
d62a17ae 261 struct connected *c;
262 struct nbr_connected *nc;
263 struct listnode *node, *nnode;
264 struct bgp *bgp;
c19fe3c7 265 struct peer *peer;
6aeb9e78 266
b0b69e59 267 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
718e3744 268
6a69ac51
DS		 269 bgp_mac_del_mac_entry(ifp);
270
d62a17ae 271 if (BGP_DEBUG(zebra, ZEBRA))
b0b69e59 272 zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf_id, ifp->name);
ad4cbda1 273
85751d1d
DS		 274 if (!bgp)
275 return 0;
276
d62a17ae 277 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
278 bgp_connected_delete(bgp, c);
718e3744 279
d62a17ae 280 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
281 bgp_nbr_connected_delete(bgp, nc, 1);
a80beece 282
d62a17ae 283 /* Fast external-failover */
c19fe3c7 284 if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) {
718e3744 285
d62a17ae 286 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
50bd8995 287 /* Take down directly connected peers. */
c8d6f0d6 288 if ((peer->ttl != BGP_DEFAULT_TTL)
e2521429 289 && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED))
d62a17ae 290 continue;
718e3744 291
d62a17ae 292 if (ifp == peer->nexthop.ifp) {
293 BGP_EVENT_ADD(peer, BGP_Stop);
294 peer->last_reset = PEER_DOWN_IF_DOWN;
295 }
296 }
297 }
718e3744 298
0d020cd6 299 hook_call(bgp_vrf_status_changed, bgp, ifp);
8761cd6d
DS		 300 bgp_nht_ifp_down(ifp);
301
d62a17ae 302 return 0;
718e3744 303}
304
121f9dee 305static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS)
718e3744 306{
d62a17ae 307 struct connected *ifc;
2f9123e0
DS		 308 struct bgp *bgp;
309
310 bgp = bgp_lookup_by_vrf_id(vrf_id);
d62a17ae 311
121f9dee 312 ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
d62a17ae 313
314 if (ifc == NULL)
315 return 0;
316
2dbe669b
DA		 317 if (bgp_debug_zebra(ifc->address))
318 zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id,
319 ifc->ifp->name, ifc->address);
d62a17ae 320
85751d1d
DS		 321 if (!bgp)
322 return 0;
323
d62a17ae 324 if (if_is_operative(ifc->ifp)) {
d62a17ae 325 bgp_connected_add(bgp, ifc);
2f9123e0 326
d62a17ae 327 /* If we have learnt of any neighbors on this interface,
328 * check to kick off any BGP interface-based neighbors,
329 * but only if this is a link-local address.
330 */
331 if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6)
332 && !list_isempty(ifc->ifp->nbr_connected))
333 bgp_start_interface_nbrs(bgp, ifc->ifp);
334 }
335
336 return 0;
718e3744 337}
338
121f9dee 339static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS)
718e3744 340{
d62a17ae 341 struct connected *ifc;
342 struct bgp *bgp;
6aeb9e78 343
2f9123e0 344 bgp = bgp_lookup_by_vrf_id(vrf_id);
2f9123e0 345
121f9dee 346 ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
718e3744 347
d62a17ae 348 if (ifc == NULL)
349 return 0;
718e3744 350
2dbe669b
DA		 351 if (bgp_debug_zebra(ifc->address))
352 zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id,
353 ifc->ifp->name, ifc->address);
a39275d7 354
85751d1d 355 if (bgp && if_is_operative(ifc->ifp)) {
2f9123e0 356 bgp_connected_delete(bgp, ifc);
d62a17ae 357 }
718e3744 358
721c0857 359 connected_free(&ifc);
718e3744 360
d62a17ae 361 return 0;
718e3744 362}
363
121f9dee 364static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS)
a80beece 365{
d62a17ae 366 struct nbr_connected *ifc = NULL;
367 struct bgp *bgp;
368
121f9dee 369 ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id);
d62a17ae 370
371 if (ifc == NULL)
372 return 0;
373
2dbe669b
DA		 374 if (bgp_debug_zebra(ifc->address))
375 zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX",
376 vrf_id, ifc->ifp->name, ifc->address);
d62a17ae 377
378 if (if_is_operative(ifc->ifp)) {
379 bgp = bgp_lookup_by_vrf_id(vrf_id);
380 if (bgp)
381 bgp_nbr_connected_add(bgp, ifc);
382 }
383
384 return 0;
a80beece
DS		 385}
386
121f9dee 387static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS)
a80beece 388{
d62a17ae 389 struct nbr_connected *ifc = NULL;
390 struct bgp *bgp;
6aeb9e78 391
121f9dee 392 ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id);
a80beece 393
d62a17ae 394 if (ifc == NULL)
395 return 0;
a80beece 396
2dbe669b
DA		 397 if (bgp_debug_zebra(ifc->address))
398 zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX",
399 vrf_id, ifc->ifp->name, ifc->address);
a80beece 400
d62a17ae 401 if (if_is_operative(ifc->ifp)) {
402 bgp = bgp_lookup_by_vrf_id(vrf_id);
403 if (bgp)
404 bgp_nbr_connected_delete(bgp, ifc, 0);
405 }
a80beece 406
d62a17ae 407 nbr_connected_free(ifc);
a80beece 408
d62a17ae 409 return 0;
a80beece
DS		 410}
411
bfcd43b2 412/* VRF update for an interface. */
121f9dee 413static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS)
bfcd43b2 414{
d62a17ae 415 struct interface *ifp;
416 vrf_id_t new_vrf_id;
417 struct connected *c;
418 struct nbr_connected *nc;
419 struct listnode *node, *nnode;
420 struct bgp *bgp;
c19fe3c7 421 struct peer *peer;
bfcd43b2 422
d62a17ae 423 ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id,
424 &new_vrf_id);
425 if (!ifp)
426 return 0;
bfcd43b2 427
d62a17ae 428 if (BGP_DEBUG(zebra, ZEBRA) && ifp)
429 zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id,
430 ifp->name, new_vrf_id);
bfcd43b2 431
d62a17ae 432 bgp = bgp_lookup_by_vrf_id(vrf_id);
bfcd43b2 433
85751d1d
DS		 434 if (bgp) {
435 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
436 bgp_connected_delete(bgp, c);
bfcd43b2 437
85751d1d
DS		 438 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
439 bgp_nbr_connected_delete(bgp, nc, 1);
bfcd43b2 440
85751d1d
DS		 441 /* Fast external-failover */
442 if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) {
443 for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) {
c8d6f0d6 444 if ((peer->ttl != BGP_DEFAULT_TTL)
e2521429
DA		 445 && (peer->gtsm_hops
446 != BGP_GTSM_HOPS_CONNECTED))
85751d1d 447 continue;
bfcd43b2 448
85751d1d
DS		 449 if (ifp == peer->nexthop.ifp)
450 BGP_EVENT_ADD(peer, BGP_Stop);
451 }
d62a17ae 452 }
453 }
bfcd43b2 454
a36898e7 455 if_update_to_new_vrf(ifp, new_vrf_id);
bfcd43b2 456
d62a17ae 457 bgp = bgp_lookup_by_vrf_id(new_vrf_id);
458 if (!bgp)
459 return 0;
bfcd43b2 460
d62a17ae 461 for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c))
462 bgp_connected_add(bgp, c);
bfcd43b2 463
d62a17ae 464 for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc))
465 bgp_nbr_connected_add(bgp, nc);
0d020cd6
PR		 466
467 hook_call(bgp_vrf_status_changed, bgp, ifp);
d62a17ae 468 return 0;
bfcd43b2 469}
470
718e3744 471/* Zebra route add and delete treatment. */
121f9dee 472static int zebra_read_route(ZAPI_CALLBACK_ARGS)
718e3744 473{
9de1f7ff 474 enum nexthop_types_t nhtype;
74489921
RW		 475 struct zapi_route api;
476 union g_addr nexthop;
9de1f7ff 477 ifindex_t ifindex;
74489921 478 int add, i;
d62a17ae 479 struct bgp *bgp;
480
481 bgp = bgp_lookup_by_vrf_id(vrf_id);
482 if (!bgp)
483 return 0;
484
74489921
RW		 485 if (zapi_route_decode(zclient->ibuf, &api) < 0)
486 return -1;
d62a17ae 487
74489921
RW		 488 /* we completely ignore srcdest routes for now. */
489 if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX))
490 return 0;
d62a17ae 491
74489921
RW		 492 /* ignore link-local address. */
493 if (api.prefix.family == AF_INET6
494 && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6))
495 return 0;
d62a17ae 496
74489921
RW		 497 nexthop = api.nexthops[0].gate;
498 ifindex = api.nexthops[0].ifindex;
9de1f7ff 499 nhtype = api.nexthops[0].type;
d62a17ae 500
121f9dee 501 add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD);
74489921 502 if (add) {
d62a17ae 503 /*
504 * The ADD message is actually an UPDATE and there is no
505 * explicit DEL
506 * for a prior redistributed route, if any. So, perform an
507 * implicit
508 * DEL processing for the same redistributed route from any
509 * other
510 * source type.
511 */
512 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
513 if (i != api.type)
74489921 514 bgp_redistribute_delete(bgp, &api.prefix, i,
d62a17ae 515 api.instance);
516 }
517
518 /* Now perform the add/update. */
74489921 519 bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex,
a4d82a8a
PZ		 520 nhtype, api.metric, api.type, api.instance,
521 api.tag);
d62a17ae 522 } else {
74489921
RW		 523 bgp_redistribute_delete(bgp, &api.prefix, api.type,
524 api.instance);
a39275d7 525 }
d62a17ae 526
74489921 527 if (bgp_debug_zebra(&api.prefix)) {
2dbe669b 528 char buf[PREFIX_STRLEN];
74489921 529
77e62f2b 530 if (add) {
2dbe669b
DA		 531 inet_ntop(api.prefix.family, &nexthop, buf,
532 sizeof(buf));
77e62f2b 533 zlog_debug(
801bb996 534 "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI,
77e62f2b 535 vrf_id, zebra_route_string(api.type),
2dbe669b 536 api.instance, &api.prefix, buf, nhtype, ifindex,
801bb996 537 api.metric, api.distance, api.tag);
77e62f2b 538 } else {
6bdbcbf1 539 zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id,
2dbe669b 540 zebra_route_string(api.type), api.instance,
6bdbcbf1 541 &api.prefix);
77e62f2b 542 }
d62a17ae 543 }
544
545 return 0;
718e3744 546}
6b0655a2 547
d62a17ae 548struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id)
718e3744 549{
f4e14fdb 550 struct vrf *vrf;
d62a17ae 551 struct listnode *cnode;
552 struct interface *ifp;
553 struct connected *connected;
554 struct prefix_ipv4 p;
555 struct prefix *cp;
556
f4e14fdb
RW		 557 vrf = vrf_lookup_by_id(vrf_id);
558 if (!vrf)
559 return NULL;
560
d62a17ae 561 p.family = AF_INET;
562 p.prefix = *addr;
563 p.prefixlen = IPV4_MAX_BITLEN;
564
451fda4f 565 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 566 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
567 cp = connected->address;
568
569 if (cp->family == AF_INET)
570 if (prefix_match(cp, (struct prefix *)&p))
571 return ifp;
572 }
718e3744 573 }
d62a17ae 574 return NULL;
718e3744 575}
576
d62a17ae 577struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id)
718e3744 578{
f4e14fdb 579 struct vrf *vrf;
d62a17ae 580 struct listnode *cnode;
581 struct interface *ifp;
582 struct connected *connected;
583 struct prefix *cp;
584
f4e14fdb
RW		 585 vrf = vrf_lookup_by_id(vrf_id);
586 if (!vrf)
587 return NULL;
588
451fda4f 589 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 590 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
591 cp = connected->address;
592
593 if (cp->family == AF_INET)
594 if (IPV4_ADDR_SAME(&cp->u.prefix4, addr))
595 return ifp;
596 }
718e3744 597 }
d62a17ae 598 return NULL;
718e3744 599}
600
d62a17ae 601struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex,
602 vrf_id_t vrf_id)
718e3744 603{
f4e14fdb 604 struct vrf *vrf;
d62a17ae 605 struct listnode *cnode;
606 struct interface *ifp;
607 struct connected *connected;
608 struct prefix_ipv6 p;
609 struct prefix *cp;
610
f4e14fdb
RW		 611 vrf = vrf_lookup_by_id(vrf_id);
612 if (!vrf)
613 return NULL;
614
d62a17ae 615 p.family = AF_INET6;
616 p.prefix = *addr;
617 p.prefixlen = IPV6_MAX_BITLEN;
618
451fda4f 619 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 620 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
621 cp = connected->address;
622
623 if (cp->family == AF_INET6)
624 if (prefix_match(cp, (struct prefix *)&p)) {
625 if (IN6_IS_ADDR_LINKLOCAL(
626 &cp->u.prefix6)) {
627 if (ifindex == ifp->ifindex)
628 return ifp;
629 } else
630 return ifp;
631 }
632 }
718e3744 633 }
d62a17ae 634 return NULL;
718e3744 635}
636
d62a17ae 637struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr,
638 ifindex_t ifindex, vrf_id_t vrf_id)
718e3744 639{
f4e14fdb 640 struct vrf *vrf;
d62a17ae 641 struct listnode *cnode;
642 struct interface *ifp;
643 struct connected *connected;
644 struct prefix *cp;
645
f4e14fdb
RW		 646 vrf = vrf_lookup_by_id(vrf_id);
647 if (!vrf)
648 return NULL;
649
451fda4f 650 FOR_ALL_INTERFACES (vrf, ifp) {
d62a17ae 651 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
652 cp = connected->address;
653
654 if (cp->family == AF_INET6)
655 if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) {
656 if (IN6_IS_ADDR_LINKLOCAL(
657 &cp->u.prefix6)) {
658 if (ifindex == ifp->ifindex)
659 return ifp;
660 } else
661 return ifp;
662 }
663 }
718e3744 664 }
d62a17ae 665 return NULL;
718e3744 666}
667
d62a17ae 668static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr)
718e3744 669{
d62a17ae 670 struct listnode *cnode;
671 struct connected *connected;
672 struct prefix *cp;
673
674 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
675 cp = connected->address;
676
677 if (cp->family == AF_INET6)
678 if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) {
679 memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN);
680 return 1;
681 }
682 }
683 return 0;
718e3744 684}
685
d62a17ae 686static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr)
718e3744 687{
d62a17ae 688 struct listnode *cnode;
689 struct connected *connected;
690 struct prefix *cp;
691
692 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
693 cp = connected->address;
694
695 if (cp->family == AF_INET6)
696 if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) {
697 memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN);
698 return 1;
699 }
700 }
701 return 0;
718e3744 702}
718e3744 703
d62a17ae 704static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr)
6ee06fa9 705{
d62a17ae 706 struct listnode *cnode;
707 struct connected *connected;
708 struct prefix *cp;
709
710 for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) {
711 cp = connected->address;
712 if ((cp->family == AF_INET)
713 && !ipv4_martian(&(cp->u.prefix4))) {
714 *addr = cp->u.prefix4;
715 return 1;
716 }
717 }
718 return 0;
6ee06fa9
PM		 719}
720
17cdd31e
DS		 721
722bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote,
723 struct bgp_nexthop *nexthop, struct peer *peer)
718e3744 724{
d62a17ae 725 int ret = 0;
726 struct interface *ifp = NULL;
727
728 memset(nexthop, 0, sizeof(struct bgp_nexthop));
729
730 if (!local)
17cdd31e 731 return false;
d62a17ae 732 if (!remote)
17cdd31e 733 return false;
d62a17ae 734
735 if (local->sa.sa_family == AF_INET) {
736 nexthop->v4 = local->sin.sin_addr;
737 if (peer->update_if)
738 ifp = if_lookup_by_name(peer->update_if,
a36898e7 739 peer->bgp->vrf_id);
d62a17ae 740 else
741 ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr,
742 peer->bgp->vrf_id);
718e3744 743 }
d62a17ae 744 if (local->sa.sa_family == AF_INET6) {
8f2b2139 745 memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN);
d62a17ae 746 if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) {
747 if (peer->conf_if || peer->ifname)
748 ifp = if_lookup_by_name(peer->conf_if
749 ? peer->conf_if
750 : peer->ifname,
a36898e7 751 peer->bgp->vrf_id);
d62a17ae 752 } else if (peer->update_if)
753 ifp = if_lookup_by_name(peer->update_if,
a36898e7 754 peer->bgp->vrf_id);
d62a17ae 755 else
756 ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr,
757 local->sin6.sin6_scope_id,
758 peer->bgp->vrf_id);
718e3744 759 }
d62a17ae 760
17cdd31e
DS		 761 if (!ifp) {
762 /*
763 * BGP views do not currently get proper data
764 * from zebra( when attached ) to be able to
765 * properly resolve nexthops, so give this
766 * instance type a pass.
767 */
768 if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW)
769 return true;
770 /*
771 * If we have no interface data but we have established
772 * some connection w/ zebra than something has gone
773 * terribly terribly wrong here, so say this failed
774 * If we do not any zebra connection then not
775 * having a ifp pointer is ok.
776 */
777 return zclient_num_connects ? false : true;
778 }
d62a17ae 779
780 nexthop->ifp = ifp;
781
782 /* IPv4 connection, fetch and store IPv6 local address(es) if any. */
783 if (local->sa.sa_family == AF_INET) {
784 /* IPv6 nexthop*/
785 ret = if_get_ipv6_global(ifp, &nexthop->v6_global);
786
787 if (!ret) {
788 /* There is no global nexthop. Use link-local address as
789 * both the
790 * global and link-local nexthop. In this scenario, the
791 * expectation
792 * for interop is that the network admin would use a
793 * route-map to
794 * specify the global IPv6 nexthop.
795 */
796 if_get_ipv6_local(ifp, &nexthop->v6_global);
797 memcpy(&nexthop->v6_local, &nexthop->v6_global,
798 IPV6_MAX_BYTELEN);
799 } else
800 if_get_ipv6_local(ifp, &nexthop->v6_local);
801
802 if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id))
803 peer->shared_network = 1;
804 else
805 peer->shared_network = 0;
718e3744 806 }
718e3744 807
d62a17ae 808 /* IPv6 connection, fetch and store IPv4 local address if any. */
809 if (local->sa.sa_family == AF_INET6) {
810 struct interface *direct = NULL;
811
812 /* IPv4 nexthop. */
813 ret = if_get_ipv4_address(ifp, &nexthop->v4);
975a328e 814 if (!ret && peer->local_id.s_addr != INADDR_ANY)
d62a17ae 815 nexthop->v4 = peer->local_id;
816
817 /* Global address*/
818 if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) {
819 memcpy(&nexthop->v6_global, &local->sin6.sin6_addr,
820 IPV6_MAX_BYTELEN);
821
822 /* If directory connected set link-local address. */
823 direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr,
824 remote->sin6.sin6_scope_id,
825 peer->bgp->vrf_id);
826 if (direct)
827 if_get_ipv6_local(ifp, &nexthop->v6_local);
828 } else
829 /* Link-local address. */
830 {
831 ret = if_get_ipv6_global(ifp, &nexthop->v6_global);
832
833 /* If there is no global address. Set link-local
834 address as
835 global. I know this break RFC specification... */
836 /* In this scenario, the expectation for interop is that
837 * the
838 * network admin would use a route-map to specify the
839 * global
840 * IPv6 nexthop.
841 */
842 if (!ret)
843 memcpy(&nexthop->v6_global,
844 &local->sin6.sin6_addr,
845 IPV6_MAX_BYTELEN);
846 /* Always set the link-local address */
847 memcpy(&nexthop->v6_local, &local->sin6.sin6_addr,
848 IPV6_MAX_BYTELEN);
849 }
850
851 if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)
852 || if_lookup_by_ipv6(&remote->sin6.sin6_addr,
853 remote->sin6.sin6_scope_id,
854 peer->bgp->vrf_id))
855 peer->shared_network = 1;
856 else
857 peer->shared_network = 0;
858 }
718e3744 859
d62a17ae 860/* KAME stack specific treatment. */
718e3744 861#ifdef KAME
d62a17ae 862 if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global)
863 && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) {
864 SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0);
865 }
866 if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local)
867 && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) {
868 SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0);
869 }
718e3744 870#endif /* KAME */
e33a4880 871
d62a17ae 872 /* If we have identified the local interface, there is no error for now.
873 */
17cdd31e 874 return true;
718e3744 875}
876
18ee8310 877static struct in6_addr *
40381db7 878bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex)
73ac8160 879{
d62a17ae 880 struct in6_addr *nexthop = NULL;
881
882 /* Only global address nexthop exists. */
dc94fe42
RW		 883 if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL
884 || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) {
40381db7 885 nexthop = &path->attr->mp_nexthop_global;
77e62f2b 886 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 887 *ifindex = path->attr->nh_ifindex;
77e62f2b 888 }
d62a17ae 889
890 /* If both global and link-local address present. */
dc94fe42
RW		 891 if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL
892 || path->attr->mp_nexthop_len
893 == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) {
d62a17ae 894 /* Check if route-map is set to prefer global over link-local */
40381db7
DS		 895 if (path->attr->mp_nexthop_prefer_global) {
896 nexthop = &path->attr->mp_nexthop_global;
77e62f2b 897 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 898 *ifindex = path->attr->nh_ifindex;
77e62f2b 899 } else {
d62a17ae 900 /* Workaround for Cisco's nexthop bug. */
901 if (IN6_IS_ADDR_UNSPECIFIED(
40381db7 902 &path->attr->mp_nexthop_global)
ab0e0f73 903 && path->peer->su_remote
40381db7 904 && path->peer->su_remote->sa.sa_family
59a0f1cb 905 == AF_INET6) {
d62a17ae 906 nexthop =
40381db7 907 &path->peer->su_remote->sin6.sin6_addr;
77e62f2b 908 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 909 *ifindex = path->peer->nexthop.ifp
59a0f1cb 910 ->ifindex;
77e62f2b 911 } else {
40381db7 912 nexthop = &path->attr->mp_nexthop_local;
77e62f2b 913 if (IN6_IS_ADDR_LINKLOCAL(nexthop))
40381db7 914 *ifindex = path->attr->nh_lla_ifindex;
77e62f2b 915 }
d62a17ae 916 }
917 }
918
919 return nexthop;
73ac8160
DS		 920}
921
b8685f9b 922static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p,
3dc339cd 923 struct bgp_path_info *path)
73ac8160 924{
b4cb15c6
DL		 925 route_map_result_t ret;
926
1782514f 927 ret = route_map_apply(map, p, path);
40381db7 928 bgp_attr_flush(path->attr);
b4cb15c6
DL		 929
930 if (ret != RMAP_DENYMATCH)
3dc339cd 931 return true;
d62a17ae 932
933 if (bgp_debug_zebra(p)) {
934 if (p->family == AF_INET) {
d62a17ae 935 zlog_debug(
c0d72166
DS		 936 "Zebra rmap deny: IPv4 route %pFX nexthop %pI4",
937 p, &path->attr->nexthop);
d62a17ae 938 }
939 if (p->family == AF_INET6) {
940 char buf[2][INET6_ADDRSTRLEN];
77e62f2b 941 ifindex_t ifindex;
942 struct in6_addr *nexthop;
943
40381db7 944 nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex);
d62a17ae 945 zlog_debug(
8228a9a7
DS		 946 "Zebra rmap deny: IPv6 route %pFX nexthop %s",
947 p,
6b9265a3
DA		 948 nexthop ? inet_ntop(AF_INET6, nexthop, buf[1],
949 sizeof(buf[1]))
950 : inet_ntop(AF_INET,
951 &path->attr->nexthop,
952 buf[1], sizeof(buf[1])));
d62a17ae 953 }
954 }
3dc339cd 955 return false;
73ac8160
DS		 956}
957
b98f7728
PG		 958static struct thread *bgp_tm_thread_connect;
959static bool bgp_tm_status_connected;
31c28cd7
PG		 960static bool bgp_tm_chunk_obtained;
961#define BGP_FLOWSPEC_TABLE_CHUNK 100000
962static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size;
6818e7e5 963struct bgp *bgp_tm_bgp;
b98f7728
PG		 964
965static int bgp_zebra_tm_connect(struct thread *t)
966{
967 struct zclient *zclient;
968 int delay = 10, ret = 0;
969
970 zclient = THREAD_ARG(t);
971 if (bgp_tm_status_connected && zclient->sock > 0)
972 delay = 60;
973 else {
974 bgp_tm_status_connected = false;
975 ret = tm_table_manager_connect(zclient);
976 }
977 if (ret < 0) {
b7cd3069 978 zlog_info("Error connecting to table manager!");
b98f7728
PG		 979 bgp_tm_status_connected = false;
980 } else {
981 if (!bgp_tm_status_connected)
982 zlog_debug("Connecting to table manager. Success");
983 bgp_tm_status_connected = true;
31c28cd7
PG		 984 if (!bgp_tm_chunk_obtained) {
985 if (bgp_zebra_get_table_range(bgp_tm_chunk_size,
986 &bgp_tm_min,
6818e7e5 987 &bgp_tm_max) >= 0) {
31c28cd7 988 bgp_tm_chunk_obtained = true;
6818e7e5
PG		 989 /* parse non installed entries */
990 bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC);
991 }
31c28cd7 992 }
b98f7728
PG		 993 }
994 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
995 &bgp_tm_thread_connect);
996 return 0;
997}
998
6818e7e5
PG		 999bool bgp_zebra_tm_chunk_obtained(void)
1000{
1001 return bgp_tm_chunk_obtained;
1002}
1003
31c28cd7
PG		 1004uint32_t bgp_zebra_tm_get_id(void)
1005{
1006 static int table_id;
1007
1008 if (!bgp_tm_chunk_obtained)
1009 return ++table_id;
1010 return bgp_tm_min++;
1011}
1012
6818e7e5 1013void bgp_zebra_init_tm_connect(struct bgp *bgp)
b98f7728
PG		 1014{
1015 int delay = 1;
1016
1017 /* if already set, do nothing
1018 */
1019 if (bgp_tm_thread_connect != NULL)
1020 return;
1021 bgp_tm_status_connected = false;
31c28cd7
PG		 1022 bgp_tm_chunk_obtained = false;
1023 bgp_tm_min = bgp_tm_max = 0;
1024 bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK;
6818e7e5 1025 bgp_tm_bgp = bgp;
b98f7728
PG		 1026 thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay,
1027 &bgp_tm_thread_connect);
1028}
1029
1030int bgp_zebra_get_table_range(uint32_t chunk_size,
1031 uint32_t *start, uint32_t *end)
1032{
1033 int ret;
1034
1035 if (!bgp_tm_status_connected)
1036 return -1;
1037 ret = tm_get_table_chunk(zclient, chunk_size, start, end);
1038 if (ret < 0) {
e50f7cfd 1039 flog_err(EC_BGP_TABLE_CHUNK,
1c50c1c0 1040 "BGP: Error getting table chunk %u", chunk_size);
b98f7728
PG		 1041 return -1;
1042 }
1043 zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]",
1044 chunk_size, *start, *end);
1045 return 0;
1046}
1047
3dc339cd
DA		 1048static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1049 struct in_addr *nexthop,
1050 struct attr *attr, bool is_evpn,
1051 struct zapi_nexthop *api_nh)
77e62f2b 1052{
1053 api_nh->gate.ipv4 = *nexthop;
e1e71450 1054 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1055
1056 /* Need to set fields appropriately for EVPN routes imported into
1057 * a VRF (which are programmed as onlink on l3-vni SVI) as well as
1058 * connected routes leaked into a VRF.
1059 */
e1e71450 1060 if (is_evpn) {
77e62f2b 1061 api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
68a02e06 1062 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
e1e71450 1063 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1064 } else if (nh_othervrf &&
77e62f2b 1065 api_nh->gate.ipv4.s_addr == INADDR_ANY) {
1066 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1067 api_nh->ifindex = attr->nh_ifindex;
1068 } else
1069 api_nh->type = NEXTHOP_TYPE_IPV4;
1070
3dc339cd 1071 return true;
77e62f2b 1072}
1073
3dc339cd
DA		 1074static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp,
1075 struct in6_addr *nexthop,
1076 ifindex_t ifindex,
1077 struct bgp_path_info *pi,
1078 struct bgp_path_info *best_pi,
1079 bool is_evpn,
1080 struct zapi_nexthop *api_nh)
77e62f2b 1081{
1082 struct attr *attr;
1083
40381db7 1084 attr = pi->attr;
e1e71450 1085 api_nh->vrf_id = nh_bgp->vrf_id;
77e62f2b 1086
e1e71450 1087 if (is_evpn) {
77e62f2b 1088 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
68a02e06 1089 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK);
e1e71450 1090 api_nh->ifindex = nh_bgp->l3vni_svi_ifindex;
1091 } else if (nh_othervrf) {
77e62f2b 1092 if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) {
1093 api_nh->type = NEXTHOP_TYPE_IFINDEX;
1094 api_nh->ifindex = attr->nh_ifindex;
1095 } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
1096 if (ifindex == 0)
3dc339cd 1097 return false;
77e62f2b 1098 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1099 api_nh->ifindex = ifindex;
1100 } else {
1101 api_nh->type = NEXTHOP_TYPE_IPV6;
1102 api_nh->ifindex = 0;
1103 }
1104 } else {
1105 if (IN6_IS_ADDR_LINKLOCAL(nexthop)) {
40381db7
DS		 1106 if (pi == best_pi
1107 && attr->mp_nexthop_len
1108 == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL)
1109 if (pi->peer->nexthop.ifp)
1110 ifindex =
1111 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1112 if (!ifindex) {
40381db7
DS		 1113 if (pi->peer->conf_if)
1114 ifindex = pi->peer->ifp->ifindex;
1115 else if (pi->peer->ifname)
77e62f2b 1116 ifindex = ifname2ifindex(
40381db7
DS		 1117 pi->peer->ifname,
1118 pi->peer->bgp->vrf_id);
1119 else if (pi->peer->nexthop.ifp)
1120 ifindex =
1121 pi->peer->nexthop.ifp->ifindex;
77e62f2b 1122 }
1123
1124 if (ifindex == 0)
3dc339cd 1125 return false;
77e62f2b 1126 api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
1127 api_nh->ifindex = ifindex;
1128 } else {
1129 api_nh->type = NEXTHOP_TYPE_IPV6;
1130 api_nh->ifindex = 0;
1131 }
1132 }
c2ca3e25
PG		 1133 if (nexthop)
1134 api_nh->gate.ipv6 = *nexthop;
77e62f2b 1135
3dc339cd 1136 return true;
77e62f2b 1137}
1138
f7e1c681 1139static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr,
1140 uint64_t tot_bw, uint32_t *nh_weight)
4e30bc2b 1141{
f7e1c681 1142 uint32_t bw;
1143 uint64_t tmp;
1144
1145 bw = attr->link_bw;
1146 /* zero link-bandwidth and link-bandwidth not present are treated
1147 * as the same situation.
1148 */
1149 if (!bw) {
1150 /* the only situations should be if we're either told
1151 * to skip or use default weight.
1152 */
1153 if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING)
1154 return false;
1155 *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT;
1156 } else {
1157 tmp = (uint64_t)bw * 100;
1158 *nh_weight = ((uint32_t)(tmp / tot_bw));
1159 }
1160
1161 return true;
4e30bc2b 1162}
1163
9bcb3eef 1164void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p,
4b7e6066 1165 struct bgp_path_info *info, struct bgp *bgp, afi_t afi,
d62a17ae 1166 safi_t safi)
718e3744 1167{
7cc27d41 1168 struct zapi_route api = { 0 };
9913029c 1169 struct zapi_nexthop *api_nh;
2ad4f093 1170 int nh_family;
a74e593b 1171 unsigned int valid_nh_count = 0;
2ad4f093 1172 int has_valid_label = 0;
1a9cb083 1173 bool allow_recursion = false;
d7c0a89a 1174 uint8_t distance;
d62a17ae 1175 struct peer *peer;
4b7e6066 1176 struct bgp_path_info *mpinfo;
d7c0a89a 1177 uint32_t metric;
b4cb15c6 1178 struct attr local_attr;
4b7e6066
DS		 1179 struct bgp_path_info local_info;
1180 struct bgp_path_info *mpinfo_cp = &local_info;
d62a17ae 1181 route_tag_t tag;
1182 mpls_label_t label;
ddb5b488 1183 int nh_othervrf = 0;
3f54c705 1184 bool is_evpn;
06f16b2c 1185 bool nh_updated = false;
4e30bc2b 1186 bool do_wt_ecmp;
1187 uint64_t cum_bw = 0;
6348981a
AK		 1188 uint32_t nhg_id = 0;
1189 bool is_add;
d62a17ae 1190
1191 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1192 * know of this instance.
1193 */
1194 if (!bgp_install_info_to_zebra(bgp))
1195 return;
1196
d62a17ae 1197 if (bgp->main_zebra_update_hold)
1198 return;
1199
d90b788e 1200 if (safi == SAFI_FLOWSPEC) {
9bcb3eef
DS		 1201 bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi,
1202 safi, true);
d90b788e
A		 1203 return;
1204 }
529efa23 1205
ddb5b488
PZ		 1206 /*
1207 * vrf leaking support (will have only one nexthop)
1208 */
1209 if (info->extra && info->extra->bgp_orig)
1210 nh_othervrf = 1;
1211
9913029c 1212 /* Make Zebra API structure. */
9913029c
RW		 1213 api.vrf_id = bgp->vrf_id;
1214 api.type = ZEBRA_ROUTE_BGP;
1215 api.safi = safi;
1216 api.prefix = *p;
1217 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
1218
d62a17ae 1219 peer = info->peer;
1220
ddb5b488
PZ		 1221 if (info->type == ZEBRA_ROUTE_BGP
1222 && info->sub_type == BGP_ROUTE_IMPORTED) {
1223
1ec90b5e 1224 /* Obtain peer from parent */
1225 if (info->extra && info->extra->parent)
4b7e6066
DS		 1226 peer = ((struct bgp_path_info *)(info->extra->parent))
1227 ->peer;
ddb5b488
PZ		 1228 }
1229
d62a17ae 1230 tag = info->attr->tag;
1231
88493076 1232 /* If the route's source is EVPN, flag as such. */
77e62f2b 1233 is_evpn = is_route_parent_evpn(info);
1234 if (is_evpn)
90264d64 1235 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
d3135ba3 1236
d62a17ae 1237 if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED
1238 || info->sub_type == BGP_ROUTE_AGGREGATE) {
9913029c 1239 SET_FLAG(api.flags, ZEBRA_FLAG_IBGP);
4e8b02f4 1240 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
718e3744 1241 }
a39275d7 1242
c8d6f0d6 1243 if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL)
d62a17ae 1244 || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK)
892fedb6 1245 || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK))
d62a17ae 1246
1a9cb083 1247 allow_recursion = true;
d62a17ae 1248
951745bd
PG		 1249 if (info->attr->rmap_table_id) {
1250 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1251 api.tableid = info->attr->rmap_table_id;
1252 }
1253
ef3e0d04
SM		 1254 if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1255 SET_FLAG(api.message, ZAPI_MESSAGE_SRTE);
1256
2ad4f093
RW		 1257 /* Metric is currently based on the best-path only */
1258 metric = info->attr->med;
4e30bc2b 1259
1260 /* Determine if we're doing weighted ECMP or not */
f7e1c681 1261 do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info);
4e30bc2b 1262 if (do_wt_ecmp)
1263 cum_bw = bgp_path_info_mpath_cumbw(info);
1264
6348981a 1265 /* EVPN MAC-IP routes are installed with a L3 NHG id */
8bcb09a1 1266 if (bgp_evpn_path_es_use_nhg(bgp, info, &nhg_id)) {
6348981a 1267 mpinfo = NULL;
8bcb09a1
AK		 1268 api.nhgid = nhg_id;
1269 if (nhg_id)
1270 SET_FLAG(api.message, ZAPI_MESSAGE_NHG);
1271 } else {
6348981a 1272 mpinfo = info;
8bcb09a1 1273 }
6348981a
AK		 1274
1275 for (; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) {
f7e1c681 1276 uint32_t nh_weight;
1277
a74e593b
RW		 1278 if (valid_nh_count >= multipath_num)
1279 break;
1280
b4cb15c6 1281 *mpinfo_cp = *mpinfo;
f7e1c681 1282 nh_weight = 0;
b4cb15c6 1283
d0d695f4
RW		 1284 /* Get nexthop address-family */
1285 if (p->family == AF_INET
1286 && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))
1287 nh_family = AF_INET;
1288 else if (p->family == AF_INET6
1289 || (p->family == AF_INET
1290 && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)))
1291 nh_family = AF_INET6;
1292 else
1293 continue;
1294
f7e1c681 1295 /* If processing for weighted ECMP, determine the next hop's
1296 * weight. Based on user setting, we may skip the next hop
1297 * in some situations.
1298 */
1299 if (do_wt_ecmp) {
1300 if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr,
1301 cum_bw, &nh_weight))
1302 continue;
1303 }
1374aec9 1304 api_nh = &api.nexthops[valid_nh_count];
ef3e0d04
SM		 1305
1306 if (CHECK_FLAG(info->attr->flag,
1307 ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR)))
1308 api_nh->srte_color = info->attr->srte_color;
1309
257b7b6e
DS		 1310 if (bgp_debug_zebra(&api.prefix)) {
1311 if (mpinfo->extra) {
70492dea
DS		 1312 zlog_debug("%s: p=%pFX, bgp_is_valid_label: %d",
1313 __func__, p,
257b7b6e
DS		 1314 bgp_is_valid_label(
1315 &mpinfo->extra->label[0]));
1316 } else {
70492dea
DS		 1317 zlog_debug(
1318 "%s: p=%pFX, extra is NULL, no label",
1319 __func__, p);
ddb5b488 1320 }
257b7b6e 1321 }
ddb5b488 1322
257b7b6e
DS		 1323 if (bgp->table_map[afi][safi].name) {
1324 /* Copy info and attributes, so the route-map
1325 apply doesn't modify the BGP route info. */
1326 local_attr = *mpinfo->attr;
1327 mpinfo_cp->attr = &local_attr;
1328 if (!bgp_table_map_apply(bgp->table_map[afi][safi].map,
1329 p, mpinfo_cp))
1330 continue;
b4cb15c6 1331
257b7b6e
DS		 1332 /* metric/tag is only allowed to be
1333 * overridden on 1st nexthop */
1334 if (mpinfo == info) {
1335 metric = mpinfo_cp->attr->med;
1336 tag = mpinfo_cp->attr->tag;
b4cb15c6 1337 }
257b7b6e 1338 }
d62a17ae 1339
257b7b6e 1340 if (nh_family == AF_INET) {
77e62f2b 1341 nh_updated = update_ipv4nh_for_route_install(
1342 nh_othervrf,
e1e71450 1343 nh_othervrf ?
1344 info->extra->bgp_orig : bgp,
77e62f2b 1345 &mpinfo_cp->attr->nexthop,
1346 mpinfo_cp->attr, is_evpn, api_nh);
2ad4f093 1347 } else {
f220da99 1348 ifindex_t ifindex = IFINDEX_INTERNAL;
2ad4f093 1349 struct in6_addr *nexthop;
9913029c 1350
18ee8310
DS		 1351 nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp,
1352 &ifindex);
00c10664
DA		 1353
1354 if (!nexthop)
1355 nh_updated = update_ipv4nh_for_route_install(
1356 nh_othervrf,
1357 nh_othervrf ? info->extra->bgp_orig
1358 : bgp,
1359 &mpinfo_cp->attr->nexthop,
1360 mpinfo_cp->attr, is_evpn, api_nh);
1361 else
1362 nh_updated = update_ipv6nh_for_route_install(
1363 nh_othervrf,
1364 nh_othervrf ? info->extra->bgp_orig
1365 : bgp,
1366 nexthop, ifindex, mpinfo, info, is_evpn,
1367 api_nh);
2ad4f093 1368 }
d62a17ae 1369
77e62f2b 1370 /* Did we get proper nexthop info to update zebra? */
1371 if (!nh_updated)
1372 continue;
1373
1a9cb083
JM		 1374 /* Allow recursion if it is a multipath group with both
1375 * eBGP and iBGP paths.
1376 */
1377 if (!allow_recursion
1378 && CHECK_FLAG(bgp->flags, BGP_FLAG_PEERTYPE_MULTIPATH_RELAX)
1379 && (mpinfo->peer->sort == BGP_PEER_IBGP
1380 || mpinfo->peer->sort == BGP_PEER_CONFED))
1381 allow_recursion = true;
1382
a4d82a8a
PZ		 1383 if (mpinfo->extra
1384 && bgp_is_valid_label(&mpinfo->extra->label[0])
90264d64 1385 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) {
2ad4f093 1386 has_valid_label = 1;
b57ba6d2 1387 label = label_pton(&mpinfo->extra->label[0]);
9913029c 1388
68a02e06
MS		 1389 SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL);
1390
2ad4f093
RW		 1391 api_nh->label_num = 1;
1392 api_nh->labels[0] = label;
d62a17ae 1393 }
22e63104 1394 memcpy(&api_nh->rmac, &(mpinfo->attr->rmac),
1395 sizeof(struct ethaddr));
f7e1c681 1396 api_nh->weight = nh_weight;
4e30bc2b 1397
2ad4f093
RW		 1398 valid_nh_count++;
1399 }
d62a17ae 1400
6348981a
AK		 1401 is_add = (valid_nh_count || nhg_id) ? true : false;
1402
ec0acb80 1403 if (is_add && CHECK_FLAG(bm->flags, BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA)) {
94effaf0
DA		 1404 struct bgp_zebra_opaque bzo = {};
1405
1406 strlcpy(bzo.aspath, info->attr->aspath->str,
1407 sizeof(bzo.aspath));
1408
1409 if (info->attr->flag & ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES))
1410 strlcpy(bzo.community, info->attr->community->str,
1411 sizeof(bzo.community));
1412
1413 if (info->attr->flag
1414 & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES))
1415 strlcpy(bzo.lcommunity, info->attr->lcommunity->str,
1416 sizeof(bzo.lcommunity));
e46723a5
DS		 1417
1418 SET_FLAG(api.message, ZAPI_MESSAGE_OPAQUE);
94effaf0
DA		 1419 api.opaque.length = MIN(sizeof(struct bgp_zebra_opaque),
1420 ZAPI_MESSAGE_OPAQUE_LENGTH);
1421 memcpy(api.opaque.data, &bzo, api.opaque.length);
e46723a5
DS		 1422 }
1423
1a9cb083
JM		 1424 if (allow_recursion)
1425 SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
1426
5cc347c4
DS		 1427 /*
1428 * When we create an aggregate route we must also
1429 * install a Null0 route in the RIB, so overwrite
1430 * what was written into api with a blackhole route
1431 */
1432 if (info->sub_type == BGP_ROUTE_AGGREGATE)
1433 zapi_route_set_blackhole(&api, BLACKHOLE_NULL);
1434 else
2ad4f093 1435 api.nexthop_num = valid_nh_count;
d62a17ae 1436
2ad4f093
RW		 1437 SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
1438 api.metric = metric;
d62a17ae 1439
2ad4f093
RW		 1440 if (tag) {
1441 SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
1442 api.tag = tag;
1443 }
d62a17ae 1444
2ad4f093
RW		 1445 distance = bgp_distance_apply(p, info, afi, safi, bgp);
1446 if (distance) {
1447 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
1448 api.distance = distance;
1449 }
d62a17ae 1450
2ad4f093 1451 if (bgp_debug_zebra(p)) {
2ad4f093 1452 char nh_buf[INET6_ADDRSTRLEN];
d8744f72
CS		 1453 char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'};
1454 char buf1[ETHER_ADDR_STRLEN];
2ad4f093
RW		 1455 char label_buf[20];
1456 int i;
1457
2dbe669b
DA		 1458 zlog_debug(
1459 "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI
6348981a 1460 " count %d nhg %d",
2dbe669b 1461 valid_nh_count ? "add" : "delete", bgp->vrf_id,
6348981a
AK		 1462 &api.prefix, api.metric, api.tag, api.nexthop_num,
1463 nhg_id);
2ad4f093
RW		 1464 for (i = 0; i < api.nexthop_num; i++) {
1465 api_nh = &api.nexthops[i];
1466
1ee069db
CS		 1467 switch (api_nh->type) {
1468 case NEXTHOP_TYPE_IFINDEX:
77e62f2b 1469 nh_buf[0] = '\0';
1ee069db
CS		 1470 break;
1471 case NEXTHOP_TYPE_IPV4:
1472 case NEXTHOP_TYPE_IPV4_IFINDEX:
1473 nh_family = AF_INET;
77e62f2b 1474 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1475 sizeof(nh_buf));
1ee069db
CS		 1476 break;
1477 case NEXTHOP_TYPE_IPV6:
1478 case NEXTHOP_TYPE_IPV6_IFINDEX:
1479 nh_family = AF_INET6;
1480 inet_ntop(nh_family, &api_nh->gate, nh_buf,
1481 sizeof(nh_buf));
1482 break;
1483 case NEXTHOP_TYPE_BLACKHOLE:
1484 strlcpy(nh_buf, "blackhole", sizeof(nh_buf));
1485 break;
1486 default:
1487 /* Note: add new nexthop case */
1488 assert(0);
1489 break;
77e62f2b 1490 }
2ad4f093
RW		 1491
1492 label_buf[0] = '\0';
d8744f72 1493 eth_buf[0] = '\0';
a4d82a8a
PZ		 1494 if (has_valid_label
1495 && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))
a7799788
CS		 1496 snprintf(label_buf, sizeof(label_buf),
1497 "label %u", api_nh->labels[0]);
d8744f72
CS		 1498 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)
1499 && !is_zero_mac(&api_nh->rmac))
a7799788
CS		 1500 snprintf(eth_buf, sizeof(eth_buf), " RMAC %s",
1501 prefix_mac2str(&api_nh->rmac,
1502 buf1, sizeof(buf1)));
4e30bc2b 1503 zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s",
77e62f2b 1504 i + 1, nh_buf, api_nh->ifindex,
4e30bc2b 1505 api_nh->vrf_id, api_nh->weight,
1506 label_buf, eth_buf);
d62a17ae 1507 }
2ad4f093 1508
960035b2
PZ		 1509 int recursion_flag = 0;
1510
1511 if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION))
1512 recursion_flag = 1;
1513
70492dea
DS		 1514 zlog_debug("%s: %pFX: announcing to zebra (recursion %sset)",
1515 __func__, p, (recursion_flag ? "" : "NOT "));
960035b2 1516 }
6348981a 1517 zclient_route_send(is_add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE,
2ad4f093 1518 zclient, &api);
718e3744 1519}
1520
73ac8160 1521/* Announce all routes of a table to zebra */
d62a17ae 1522void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi)
73ac8160 1523{
9bcb3eef 1524 struct bgp_dest *dest;
d62a17ae 1525 struct bgp_table *table;
40381db7 1526 struct bgp_path_info *pi;
d62a17ae 1527
1528 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1529 * know of this instance.
1530 */
1531 if (!bgp_install_info_to_zebra(bgp))
1532 return;
1533
1534 table = bgp->rib[afi][safi];
1535 if (!table)
1536 return;
1537
9bcb3eef
DS		 1538 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1539 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
40381db7 1540 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
ddb5b488 1541
40381db7
DS		 1542 (pi->type == ZEBRA_ROUTE_BGP
1543 && (pi->sub_type == BGP_ROUTE_NORMAL
1544 || pi->sub_type == BGP_ROUTE_IMPORTED)))
ddb5b488 1545
9bcb3eef
DS		 1546 bgp_zebra_announce(dest,
1547 bgp_dest_get_prefix(dest),
b54892e0 1548 pi, bgp, afi, safi);
73ac8160
DS		 1549}
1550
c163f297
DS		 1551/* Announce routes of any bgp subtype of a table to zebra */
1552void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi,
1553 safi_t safi)
1554{
1555 struct bgp_dest *dest;
1556 struct bgp_table *table;
1557 struct bgp_path_info *pi;
1558
1559 if (!bgp_install_info_to_zebra(bgp))
1560 return;
1561
1562 table = bgp->rib[afi][safi];
1563 if (!table)
1564 return;
1565
1566 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest))
1567 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next)
1568 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) &&
1569 pi->type == ZEBRA_ROUTE_BGP)
1570 bgp_zebra_announce(dest,
1571 bgp_dest_get_prefix(dest),
1572 pi, bgp, afi, safi);
1573}
1574
5a1ae2c2 1575void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info,
568e10ca 1576 struct bgp *bgp, safi_t safi)
718e3744 1577{
2ad4f093 1578 struct zapi_route api;
f7df1907 1579 struct peer *peer;
ddb5b488 1580
d62a17ae 1581 /* Don't try to install if we're not connected to Zebra or Zebra doesn't
1582 * know of this instance.
1583 */
568e10ca 1584 if (!bgp_install_info_to_zebra(bgp))
d62a17ae 1585 return;
1586
f7df1907
PG		 1587 if (safi == SAFI_FLOWSPEC) {
1588 peer = info->peer;
d90b788e
A		 1589 bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false);
1590 return;
f7df1907 1591 }
529efa23 1592
2ad4f093 1593 memset(&api, 0, sizeof(api));
568e10ca 1594 api.vrf_id = bgp->vrf_id;
2ad4f093
RW		 1595 api.type = ZEBRA_ROUTE_BGP;
1596 api.safi = safi;
1597 api.prefix = *p;
d62a17ae 1598
1276ce38
PG		 1599 if (info->attr->rmap_table_id) {
1600 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
1601 api.tableid = info->attr->rmap_table_id;
1602 }
1603
88493076 1604 /* If the route's source is EVPN, flag as such. */
1605 if (is_route_parent_evpn(info))
90264d64 1606 SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE);
01740ff4 1607
2dbe669b
DA		 1608 if (bgp_debug_zebra(p))
1609 zlog_debug("Tx route delete VRF %u %pFX", bgp->vrf_id,
1610 &api.prefix);
d62a17ae 1611
2ad4f093 1612 zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
718e3744 1613}
56c1f7d8 1614
c163f297
DS		 1615/* Withdraw all entries in a BGP instances RIB table from Zebra */
1616void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi)
1617{
1618 struct bgp_dest *dest;
1619 struct bgp_table *table;
1620 struct bgp_path_info *pi;
1621
1622 if (!bgp_install_info_to_zebra(bgp))
1623 return;
1624
1625 table = bgp->rib[afi][safi];
1626 if (!table)
1627 return;
1628
1629 for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) {
1630 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
1631 if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)
1632 && (pi->type == ZEBRA_ROUTE_BGP))
1633 bgp_zebra_withdraw(bgp_dest_get_prefix(dest),
1634 pi, bgp, safi);
1635 }
1636 }
1637}
1638
d7c0a89a
QY		 1639struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type,
1640 unsigned short instance)
7c8ff89e 1641{
d62a17ae 1642 struct list *red_list;
1643 struct listnode *node;
1644 struct bgp_redist *red;
7c8ff89e 1645
d62a17ae 1646 red_list = bgp->redist[afi][type];
1647 if (!red_list)
1648 return (NULL);
7c8ff89e 1649
d62a17ae 1650 for (ALL_LIST_ELEMENTS_RO(red_list, node, red))
1651 if (red->instance == instance)
1652 return red;
7c8ff89e 1653
d62a17ae 1654 return NULL;
7c8ff89e
DS		 1655}
1656
d7c0a89a
QY		 1657struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type,
1658 unsigned short instance)
7c8ff89e 1659{
d62a17ae 1660 struct list *red_list;
1661 struct bgp_redist *red;
7c8ff89e 1662
d62a17ae 1663 red = bgp_redist_lookup(bgp, afi, type, instance);
1664 if (red)
1665 return red;
7c8ff89e 1666
d62a17ae 1667 if (!bgp->redist[afi][type])
1668 bgp->redist[afi][type] = list_new();
7c8ff89e 1669
d62a17ae 1670 red_list = bgp->redist[afi][type];
9f5dc319 1671 red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist));
d62a17ae 1672 red->instance = instance;
7c8ff89e 1673
d62a17ae 1674 listnode_add(red_list, red);
7c8ff89e 1675
d62a17ae 1676 return red;
7c8ff89e
DS		 1677}
1678
d7c0a89a
QY		 1679static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type,
1680 unsigned short instance)
7c8ff89e 1681{
d62a17ae 1682 struct bgp_redist *red;
1683
1684 red = bgp_redist_lookup(bgp, afi, type, instance);
1685
1686 if (red) {
1687 listnode_delete(bgp->redist[afi][type], red);
1688 XFREE(MTYPE_BGP_REDIST, red);
acdf5e25 1689 if (!bgp->redist[afi][type]->count)
6a154c88 1690 list_delete(&bgp->redist[afi][type]);
d62a17ae 1691 }
7c8ff89e 1692}
6b0655a2 1693
718e3744 1694/* Other routes redistribution into BGP. */
d7c0a89a 1695int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type,
e923dd62 1696 unsigned short instance, bool changed)
718e3744 1697{
e923dd62 1698 /* If redistribute options are changed call
1699 * bgp_redistribute_unreg() to reset the option and withdraw
1700 * the routes
1701 */
1702 if (changed)
1703 bgp_redistribute_unreg(bgp, afi, type, instance);
718e3744 1704
d62a17ae 1705 /* Return if already redistribute flag is set. */
1706 if (instance) {
1707 if (redist_check_instance(&zclient->mi_redist[afi][type],
1708 instance))
1709 return CMD_WARNING;
718e3744 1710
d62a17ae 1711 redist_add_instance(&zclient->mi_redist[afi][type], instance);
1712 } else {
d9083050
IR		 1713 if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1714 return CMD_WARNING;
1715
49e5a4a0 1716#ifdef ENABLE_BGP_VNC
f920dd6d 1717 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
d62a17ae 1718 vnc_export_bgp_enable(
1719 bgp, afi); /* only enables if mode bits cfg'd */
1720 }
65efcfce
LB		 1721#endif
1722
d62a17ae 1723 vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id);
1724 }
718e3744 1725
ea12cf11
DS		 1726 /*
1727 * Don't try to register if we're not connected to Zebra or Zebra
1728 * doesn't know of this instance.
1729 *
1730 * When we come up later well resend if needed.
d62a17ae 1731 */
1732 if (!bgp_install_info_to_zebra(bgp))
ea12cf11 1733 return CMD_SUCCESS;
a39275d7 1734
d62a17ae 1735 if (BGP_DEBUG(zebra, ZEBRA))
1736 zlog_debug("Tx redistribute add VRF %u afi %d %s %d",
1737 bgp->vrf_id, afi, zebra_route_string(type),
1738 instance);
518f0eb1 1739
d62a17ae 1740 /* Send distribute add message to zebra. */
1741 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1742 instance, bgp->vrf_id);
718e3744 1743
d62a17ae 1744 return CMD_SUCCESS;
718e3744 1745}
1746
d62a17ae 1747int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1748 unsigned short instance)
518f0eb1 1749{
d62a17ae 1750 /* Don't try to send if we're not connected to Zebra or Zebra doesn't
1751 * know of this instance.
1752 */
1753 if (!bgp_install_info_to_zebra(bgp))
1754 return -1;
1755
1756 if (BGP_DEBUG(zebra, ZEBRA))
1757 zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d",
1758 bgp->vrf_id, afi, zebra_route_string(type),
1759 instance);
1760
1761 /* Send distribute add message to zebra. */
1762 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type,
1763 instance, bgp->vrf_id);
1764 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type,
1765 instance, bgp->vrf_id);
1766
1767 return 0;
518f0eb1
DS		 1768}
1769
718e3744 1770/* Redistribute with route-map specification. */
3dc339cd
DA		 1771bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name,
1772 struct route_map *route_map)
718e3744 1773{
d62a17ae 1774 if (red->rmap.name && (strcmp(red->rmap.name, name) == 0))
3dc339cd 1775 return false;
718e3744 1776
0a22ddfb 1777 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1778 /* Decrement the count for existing routemap and
1779 * increment the count for new route map.
1780 */
1781 route_map_counter_decrement(red->rmap.map);
d62a17ae 1782 red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name);
1de27621 1783 red->rmap.map = route_map;
b4897fa5 1784 route_map_counter_increment(red->rmap.map);
718e3744 1785
3dc339cd 1786 return true;
718e3744 1787}
1788
1789/* Redistribute with metric specification. */
3dc339cd
DA		 1790bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red,
1791 afi_t afi, int type, uint32_t metric)
718e3744 1792{
9bcb3eef 1793 struct bgp_dest *dest;
40381db7 1794 struct bgp_path_info *pi;
d62a17ae 1795
1796 if (red->redist_metric_flag && red->redist_metric == metric)
3dc339cd 1797 return false;
d62a17ae 1798
1799 red->redist_metric_flag = 1;
1800 red->redist_metric = metric;
1801
9bcb3eef
DS		 1802 for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest;
1803 dest = bgp_route_next(dest)) {
1804 for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) {
40381db7
DS		 1805 if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE
1806 && pi->type == type
1807 && pi->instance == red->instance) {
d62a17ae 1808 struct attr *old_attr;
1809 struct attr new_attr;
1810
6f4f49b2 1811 new_attr = *pi->attr;
d62a17ae 1812 new_attr.med = red->redist_metric;
40381db7
DS		 1813 old_attr = pi->attr;
1814 pi->attr = bgp_attr_intern(&new_attr);
d62a17ae 1815 bgp_attr_unintern(&old_attr);
1816
9bcb3eef 1817 bgp_path_info_set_flag(dest, pi,
18ee8310 1818 BGP_PATH_ATTR_CHANGED);
9bcb3eef 1819 bgp_process(bgp, dest, afi, SAFI_UNICAST);
d62a17ae 1820 }
1821 }
1822 }
1823
3dc339cd 1824 return true;
718e3744 1825}
1826
1827/* Unset redistribution. */
d62a17ae 1828int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1829 unsigned short instance)
718e3744 1830{
d62a17ae 1831 struct bgp_redist *red;
1832
1833 red = bgp_redist_lookup(bgp, afi, type, instance);
1834 if (!red)
1835 return CMD_SUCCESS;
1836
1837 /* Return if zebra connection is disabled. */
1838 if (instance) {
1839 if (!redist_check_instance(&zclient->mi_redist[afi][type],
1840 instance))
1841 return CMD_WARNING;
1842 redist_del_instance(&zclient->mi_redist[afi][type], instance);
1843 } else {
1844 if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id))
1845 return CMD_WARNING;
1846 vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id);
1847 }
718e3744 1848
d62a17ae 1849 if (bgp_install_info_to_zebra(bgp)) {
1850 /* Send distribute delete message to zebra. */
1851 if (BGP_DEBUG(zebra, ZEBRA))
1852 zlog_debug("Tx redistribute del VRF %u afi %d %s %d",
1853 bgp->vrf_id, afi, zebra_route_string(type),
1854 instance);
1855 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi,
1856 type, instance, bgp->vrf_id);
1857 }
1858
1859 /* Withdraw redistributed routes from current BGP's routing table. */
1860 bgp_redistribute_withdraw(bgp, afi, type, instance);
1861
1862 return CMD_SUCCESS;
718e3744 1863}
1864
6aeb9e78 1865/* Unset redistribution. */
d62a17ae 1866int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type,
d7c0a89a 1867 unsigned short instance)
6aeb9e78 1868{
d62a17ae 1869 struct bgp_redist *red;
6aeb9e78 1870
ddb5b488
PZ		 1871/*
1872 * vnc and vpn->vrf checks must be before red check because
1873 * they operate within bgpd irrespective of zebra connection
1874 * status. red lookup fails if there is no zebra connection.
1875 */
49e5a4a0 1876#ifdef ENABLE_BGP_VNC
f920dd6d 1877 if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) {
ddb5b488
PZ		 1878 vnc_export_bgp_disable(bgp, afi);
1879 }
1880#endif
ddb5b488 1881
d62a17ae 1882 red = bgp_redist_lookup(bgp, afi, type, instance);
1883 if (!red)
1884 return CMD_SUCCESS;
6aeb9e78 1885
d62a17ae 1886 bgp_redistribute_unreg(bgp, afi, type, instance);
6aeb9e78 1887
d62a17ae 1888 /* Unset route-map. */
0a22ddfb 1889 XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name);
b4897fa5 1890 route_map_counter_decrement(red->rmap.map);
d62a17ae 1891 red->rmap.map = NULL;
6aeb9e78 1892
d62a17ae 1893 /* Unset metric. */
1894 red->redist_metric_flag = 0;
1895 red->redist_metric = 0;
6aeb9e78 1896
d62a17ae 1897 bgp_redist_del(bgp, afi, type, instance);
6aeb9e78 1898
d62a17ae 1899 return CMD_SUCCESS;
6aeb9e78
DS		 1900}
1901
fc2408ec
DS		 1902void bgp_redistribute_redo(struct bgp *bgp)
1903{
1904 afi_t afi;
1905 int i;
1906 struct list *red_list;
1907 struct listnode *node;
1908 struct bgp_redist *red;
1909
1910 for (afi = AFI_IP; afi < AFI_MAX; afi++) {
1911 for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
1912
1913 red_list = bgp->redist[afi][i];
1914 if (!red_list)
1915 continue;
1916
1917 for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) {
1918 bgp_redistribute_resend(bgp, afi, i,
1919 red->instance);
1920 }
1921 }
1922 }
1923}
1924
d62a17ae 1925void bgp_zclient_reset(void)
718e3744 1926{
d62a17ae 1927 zclient_reset(zclient);
718e3744 1928}
1929
ad4cbda1 1930/* Register this instance with Zebra. Invoked upon connect (for
1931 * default instance) and when other VRFs are learnt (or created and
1932 * already learnt).
1933 */
d62a17ae 1934void bgp_zebra_instance_register(struct bgp *bgp)
ad4cbda1 1935{
d62a17ae 1936 /* Don't try to register if we're not connected to Zebra */
1937 if (!zclient || zclient->sock < 0)
1938 return;
ad4cbda1 1939
d62a17ae 1940 if (BGP_DEBUG(zebra, ZEBRA))
1941 zlog_debug("Registering VRF %u", bgp->vrf_id);
ad4cbda1 1942
d62a17ae 1943 /* Register for router-id, interfaces, redistributed routes. */
1944 zclient_send_reg_requests(zclient, bgp->vrf_id);
7724c0a1 1945
e2f3a930
T		 1946 /* For EVPN instance, register to learn about VNIs, if appropriate. */
1947 if (bgp->advertise_all_vni)
d62a17ae 1948 bgp_zebra_advertise_all_vni(bgp, 1);
1ee0a2df
DS		 1949
1950 bgp_nht_register_nexthops(bgp);
ad4cbda1 1951}
1952
1953/* Deregister this instance with Zebra. Invoked upon the instance
1954 * being deleted (default or VRF) and it is already registered.
1955 */
d62a17ae 1956void bgp_zebra_instance_deregister(struct bgp *bgp)
ad4cbda1 1957{
d62a17ae 1958 /* Don't try to deregister if we're not connected to Zebra */
1959 if (zclient->sock < 0)
1960 return;
ad4cbda1 1961
d62a17ae 1962 if (BGP_DEBUG(zebra, ZEBRA))
1963 zlog_debug("Deregistering VRF %u", bgp->vrf_id);
ad4cbda1 1964
e2f3a930
T		 1965 /* For EVPN instance, unregister learning about VNIs, if appropriate. */
1966 if (bgp->advertise_all_vni)
d62a17ae 1967 bgp_zebra_advertise_all_vni(bgp, 0);
7724c0a1 1968
d62a17ae 1969 /* Deregister for router-id, interfaces, redistributed routes. */
1970 zclient_send_dereg_requests(zclient, bgp->vrf_id);
ad4cbda1 1971}
1972
d62a17ae 1973void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 1974{
bbad0276 1975 uint32_t ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL;
5c81b96a 1976
d62a17ae 1977 /* Don't try to initiate if we're not connected to Zebra */
1978 if (zclient->sock < 0)
1979 return;
4a04e5f7 1980
d62a17ae 1981 if (BGP_DEBUG(zebra, ZEBRA))
1982 zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id,
1983 peer->host);
4a04e5f7 1984
b3a3290e
DS		 1985 /*
1986 * If unnumbered peer (peer->ifp) call thru zapi to start RAs.
1987 * If we don't have an ifp pointer, call function to find the
1988 * ifps for a numbered enhe peer to turn RAs on.
1989 */
1990 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
1991 peer->ifp, 1, ra_interval)
1992 : bgp_nht_reg_enhe_cap_intfs(peer);
4a04e5f7 1993}
1994
d62a17ae 1995void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer)
4a04e5f7 1996{
d62a17ae 1997 /* Don't try to terminate if we're not connected to Zebra */
1998 if (zclient->sock < 0)
1999 return;
4a04e5f7 2000
d62a17ae 2001 if (BGP_DEBUG(zebra, ZEBRA))
2002 zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id,
2003 peer->host);
4a04e5f7 2004
b3a3290e
DS		 2005 /*
2006 * If unnumbered peer (peer->ifp) call thru zapi to stop RAs.
2007 * If we don't have an ifp pointer, call function to find the
2008 * ifps for a numbered enhe peer to turn RAs off.
2009 */
2010 peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id,
2011 peer->ifp, 0, 0)
2012 : bgp_nht_dereg_enhe_cap_intfs(peer);
4a04e5f7 2013}
2014
31310b25
MK		 2015int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni)
2016{
2017 struct stream *s = NULL;
2018
2019 /* Check socket. */
2020 if (!zclient || zclient->sock < 0)
2021 return 0;
2022
2023 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2024 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2025 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2026 zlog_debug(
2027 "%s: No zebra instance to talk to, cannot advertise subnet",
2028 __func__);
31310b25 2029 return 0;
bb4ef1ae 2030 }
31310b25
MK		 2031
2032 s = zclient->obuf;
2033 stream_reset(s);
2034
2035 zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id);
2036 stream_putc(s, advertise);
2037 stream_put3(s, vni);
2038 stream_putw_at(s, 0, stream_get_endp(s));
2039
2040 return zclient_send_message(zclient);
2041}
2042
a8016157
CS		 2043int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni)
2044{
2045 struct stream *s = NULL;
2046
2047 /* Check socket. */
2048 if (!zclient || zclient->sock < 0)
2049 return 0;
2050
2051 /* Don't try to register if Zebra doesn't know of this instance. */
2052 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2053 return 0;
2054
2055 s = zclient->obuf;
2056 stream_reset(s);
2057
2058 zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id);
2059 stream_putc(s, advertise);
2060 stream_putl(s, vni);
2061 stream_putw_at(s, 0, stream_get_endp(s));
2062
2063 return zclient_send_message(zclient);
2064}
2065
1a98c087
MK		 2066int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni)
2067{
2068 struct stream *s = NULL;
2069
2070 /* Check socket. */
2071 if (!zclient || zclient->sock < 0)
2072 return 0;
2073
2074 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2075 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2076 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2077 zlog_debug(
2078 "%s: No zebra instance to talk to, not installing gw_macip",
2079 __func__);
1a98c087 2080 return 0;
bb4ef1ae 2081 }
1a98c087
MK		 2082
2083 s = zclient->obuf;
2084 stream_reset(s);
2085
2086 zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id);
2087 stream_putc(s, advertise);
cc6d5476 2088 stream_putl(s, vni);
1a98c087
MK		 2089 stream_putw_at(s, 0, stream_get_endp(s));
2090
2091 return zclient_send_message(zclient);
2092}
2093
fd069644
DS		 2094int bgp_zebra_vxlan_flood_control(struct bgp *bgp,
2095 enum vxlan_flood_control flood_ctrl)
2096{
2097 struct stream *s;
2098
2099 /* Check socket. */
2100 if (!zclient || zclient->sock < 0)
2101 return 0;
2102
2103 /* Don't try to register if Zebra doesn't know of this instance. */
bb4ef1ae
DS		 2104 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) {
2105 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2106 zlog_debug(
2107 "%s: No zebra instance to talk to, not installing all vni",
2108 __func__);
fd069644 2109 return 0;
bb4ef1ae 2110 }
fd069644
DS		 2111
2112 s = zclient->obuf;
2113 stream_reset(s);
2114
2115 zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id);
2116 stream_putc(s, flood_ctrl);
2117 stream_putw_at(s, 0, stream_get_endp(s));
2118
2119 return zclient_send_message(zclient);
2120}
2121
d62a17ae 2122int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise)
7724c0a1 2123{
d62a17ae 2124 struct stream *s;
7724c0a1 2125
d62a17ae 2126 /* Check socket. */
2127 if (!zclient || zclient->sock < 0)
2128 return 0;
7724c0a1 2129
d62a17ae 2130 /* Don't try to register if Zebra doesn't know of this instance. */
2131 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2132 return 0;
7724c0a1 2133
d62a17ae 2134 s = zclient->obuf;
2135 stream_reset(s);
7724c0a1 2136
d62a17ae 2137 zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id);
2138 stream_putc(s, advertise);
fbac9605
DS		 2139 /* Also inform current BUM handling setting. This is really
2140 * relevant only when 'advertise' is set.
2141 */
fd069644 2142 stream_putc(s, bgp->vxlan_flood_ctrl);
d62a17ae 2143 stream_putw_at(s, 0, stream_get_endp(s));
7724c0a1 2144
d62a17ae 2145 return zclient_send_message(zclient);
7724c0a1 2146}
2147
0b9d9cd0
CS		 2148int bgp_zebra_dup_addr_detection(struct bgp *bgp)
2149{
2150 struct stream *s;
2151
2152 /* Check socket. */
2153 if (!zclient || zclient->sock < 0)
2154 return 0;
2155
2156 /* Don't try to register if Zebra doesn't know of this instance. */
2157 if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp))
2158 return 0;
2159
2160 if (BGP_DEBUG(zebra, ZEBRA))
2161 zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u",
2162 bgp->evpn_info->dup_addr_detect ?
2163 "enable" : "disable",
2164 bgp->evpn_info->dad_max_moves,
2165 bgp->evpn_info->dad_time,
2166 bgp->evpn_info->dad_freeze ?
2167 "enable" : "disable",
2168 bgp->evpn_info->dad_freeze_time);
2169
2170 s = zclient->obuf;
2171 stream_reset(s);
2172 zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION,
2173 bgp->vrf_id);
2174 stream_putl(s, bgp->evpn_info->dup_addr_detect);
2175 stream_putl(s, bgp->evpn_info->dad_time);
2176 stream_putl(s, bgp->evpn_info->dad_max_moves);
2177 stream_putl(s, bgp->evpn_info->dad_freeze);
2178 stream_putl(s, bgp->evpn_info->dad_freeze_time);
2179 stream_putw_at(s, 0, stream_get_endp(s));
2180
2181 return zclient_send_message(zclient);
2182}
2183
121f9dee 2184static int rule_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2185{
2186 uint32_t seqno, priority, unique;
2187 enum zapi_rule_notify_owner note;
2188 struct bgp_pbr_action *bgp_pbra;
ffee150e 2189 struct bgp_pbr_rule *bgp_pbr = NULL;
58a1d249 2190 char ifname[INTERFACE_NAMSIZ + 1];
30d50e6d
PG		 2191
2192 if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique,
58a1d249 2193 ifname, &note))
30d50e6d
PG		 2194 return -1;
2195
70eabd12 2196 bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique);
30d50e6d 2197 if (!bgp_pbra) {
ffee150e
PG		 2198 /* look in bgp pbr rule */
2199 bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique);
2200 if (!bgp_pbr && note != ZAPI_RULE_REMOVED) {
2201 if (BGP_DEBUG(zebra, ZEBRA))
2202 zlog_debug("%s: Fail to look BGP rule (%u)",
15569c58 2203 __func__, unique);
ffee150e
PG		 2204 return 0;
2205 }
30d50e6d
PG		 2206 }
2207
2208 switch (note) {
2209 case ZAPI_RULE_FAIL_INSTALL:
2210 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2211 zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__);
ffee150e
PG		 2212 if (bgp_pbra) {
2213 bgp_pbra->installed = false;
2214 bgp_pbra->install_in_progress = false;
2215 } else {
2216 bgp_pbr->installed = false;
2217 bgp_pbr->install_in_progress = false;
2218 }
30d50e6d
PG		 2219 break;
2220 case ZAPI_RULE_INSTALLED:
ffee150e
PG		 2221 if (bgp_pbra) {
2222 bgp_pbra->installed = true;
2223 bgp_pbra->install_in_progress = false;
2224 } else {
ce3c0614
PG		 2225 struct bgp_path_info *path;
2226 struct bgp_path_info_extra *extra;
2227
ffee150e
PG		 2228 bgp_pbr->installed = true;
2229 bgp_pbr->install_in_progress = false;
2230 bgp_pbr->action->refcnt++;
ce3c0614
PG		 2231 /* link bgp_info to bgp_pbr */
2232 path = (struct bgp_path_info *)bgp_pbr->path;
2233 extra = bgp_path_info_extra_get(path);
f5925234
PG		 2234 listnode_add_force(&extra->bgp_fs_iprule,
2235 bgp_pbr);
ffee150e 2236 }
30d50e6d 2237 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2238 zlog_debug("%s: Received RULE_INSTALLED", __func__);
30d50e6d 2239 break;
f18a08f5 2240 case ZAPI_RULE_FAIL_REMOVE:
30d50e6d
PG		 2241 case ZAPI_RULE_REMOVED:
2242 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2243 zlog_debug("%s: Received RULE REMOVED", __func__);
30d50e6d
PG		 2244 break;
2245 }
2246
2247 return 0;
2248}
2249
121f9dee 2250static int ipset_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2251{
2252 uint32_t unique;
2253 enum zapi_ipset_notify_owner note;
2254 struct bgp_pbr_match *bgp_pbim;
2255
2256 if (!zapi_ipset_notify_decode(zclient->ibuf,
2257 &unique,
2258 &note))
2259 return -1;
2260
2261 bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique);
2262 if (!bgp_pbim) {
2263 if (BGP_DEBUG(zebra, ZEBRA))
88055124 2264 zlog_debug("%s: Fail to look BGP match ( %u, ID %u)",
15569c58 2265 __func__, note, unique);
30d50e6d
PG		 2266 return 0;
2267 }
2268
2269 switch (note) {
2270 case ZAPI_IPSET_FAIL_INSTALL:
2271 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2272 zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__);
30d50e6d
PG		 2273 bgp_pbim->installed = false;
2274 bgp_pbim->install_in_progress = false;
2275 break;
2276 case ZAPI_IPSET_INSTALLED:
2277 bgp_pbim->installed = true;
2278 bgp_pbim->install_in_progress = false;
2279 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2280 zlog_debug("%s: Received IPSET_INSTALLED", __func__);
30d50e6d 2281 break;
f18a08f5 2282 case ZAPI_IPSET_FAIL_REMOVE:
30d50e6d
PG		 2283 case ZAPI_IPSET_REMOVED:
2284 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2285 zlog_debug("%s: Received IPSET REMOVED", __func__);
30d50e6d
PG		 2286 break;
2287 }
2288
2289 return 0;
2290}
2291
121f9dee 2292static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS)
30d50e6d
PG		 2293{
2294 uint32_t unique;
2295 char ipset_name[ZEBRA_IPSET_NAME_SIZE];
2296 enum zapi_ipset_entry_notify_owner note;
2297 struct bgp_pbr_match_entry *bgp_pbime;
2298
2299 if (!zapi_ipset_entry_notify_decode(
2300 zclient->ibuf,
2301 &unique,
2302 ipset_name,
2303 &note))
2304 return -1;
2305 bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id,
2306 ipset_name,
2307 unique);
2308 if (!bgp_pbime) {
2309 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 2310 zlog_debug(
2311 "%s: Fail to look BGP match entry (%u, ID %u)",
2312 __func__, note, unique);
30d50e6d
PG		 2313 return 0;
2314 }
2315
2316 switch (note) {
2317 case ZAPI_IPSET_ENTRY_FAIL_INSTALL:
2318 if (BGP_DEBUG(zebra, ZEBRA))
2319 zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL",
15569c58 2320 __func__);
30d50e6d
PG		 2321 bgp_pbime->installed = false;
2322 bgp_pbime->install_in_progress = false;
2323 break;
2324 case ZAPI_IPSET_ENTRY_INSTALLED:
b588b642 2325 {
9b6d8fcf 2326 struct bgp_path_info *path;
4b7e6066
DS		 2327 struct bgp_path_info_extra *extra;
2328
2329 bgp_pbime->installed = true;
2330 bgp_pbime->install_in_progress = false;
2331 if (BGP_DEBUG(zebra, ZEBRA))
2332 zlog_debug("%s: Received IPSET_ENTRY_INSTALLED",
15569c58 2333 __func__);
9b6d8fcf
DS		 2334 /* link bgp_path_info to bpme */
2335 path = (struct bgp_path_info *)bgp_pbime->path;
2336 extra = bgp_path_info_extra_get(path);
f5925234 2337 listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime);
b588b642 2338 }
30d50e6d 2339 break;
f18a08f5 2340 case ZAPI_IPSET_ENTRY_FAIL_REMOVE:
30d50e6d
PG		 2341 case ZAPI_IPSET_ENTRY_REMOVED:
2342 if (BGP_DEBUG(zebra, ZEBRA))
2343 zlog_debug("%s: Received IPSET_ENTRY_REMOVED",
15569c58 2344 __func__);
30d50e6d
PG		 2345 break;
2346 }
2347 return 0;
2348}
2349
121f9dee 2350static int iptable_notify_owner(ZAPI_CALLBACK_ARGS)
c16a0a62
PG		 2351{
2352 uint32_t unique;
2353 enum zapi_iptable_notify_owner note;
2354 struct bgp_pbr_match *bgpm;
2355
2356 if (!zapi_iptable_notify_decode(
2357 zclient->ibuf,
2358 &unique,
2359 &note))
2360 return -1;
2361 bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique);
2362 if (!bgpm) {
2363 if (BGP_DEBUG(zebra, ZEBRA))
82e194ed 2364 zlog_debug("%s: Fail to look BGP iptable (%u %u)",
15569c58 2365 __func__, note, unique);
c16a0a62
PG		 2366 return 0;
2367 }
2368 switch (note) {
2369 case ZAPI_IPTABLE_FAIL_INSTALL:
2370 if (BGP_DEBUG(zebra, ZEBRA))
2371 zlog_debug("%s: Received IPTABLE_FAIL_INSTALL",
15569c58 2372 __func__);
c16a0a62
PG		 2373 bgpm->installed_in_iptable = false;
2374 bgpm->install_iptable_in_progress = false;
2375 break;
2376 case ZAPI_IPTABLE_INSTALLED:
2377 bgpm->installed_in_iptable = true;
2378 bgpm->install_iptable_in_progress = false;
2379 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2380 zlog_debug("%s: Received IPTABLE_INSTALLED", __func__);
a6b07429 2381 bgpm->action->refcnt++;
c16a0a62 2382 break;
f18a08f5 2383 case ZAPI_IPTABLE_FAIL_REMOVE:
c16a0a62
PG		 2384 case ZAPI_IPTABLE_REMOVED:
2385 if (BGP_DEBUG(zebra, ZEBRA))
15569c58 2386 zlog_debug("%s: Received IPTABLE REMOVED", __func__);
c16a0a62
PG		 2387 break;
2388 }
2389 return 0;
2390}
2391
a77e2f4b
S		 2392/* Process route notification messages from RIB */
2393static int bgp_zebra_route_notify_owner(int command, struct zclient *zclient,
2394 zebra_size_t length, vrf_id_t vrf_id)
2395{
2396 struct prefix p;
2397 enum zapi_route_notify_owner note;
2398 uint32_t table_id;
a77e2f4b
S		 2399 afi_t afi;
2400 safi_t safi;
2401 struct bgp_dest *dest;
2402 struct bgp *bgp;
2403 struct bgp_path_info *pi, *new_select;
2404
2405 if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, &note,
2406 &afi, &safi)) {
cc42c4f0 2407 zlog_err("%s : error in msg decode", __func__);
a77e2f4b
S		 2408 return -1;
2409 }
2410
2411 /* Get the bgp instance */
2412 bgp = bgp_lookup_by_vrf_id(vrf_id);
2413 if (!bgp) {
2414 flog_err(EC_BGP_INVALID_BGP_INSTANCE,
cc42c4f0
DS		 2415 "%s : bgp instance not found vrf %d", __func__,
2416 vrf_id);
a77e2f4b
S		 2417 return -1;
2418 }
2419
a77e2f4b
S		 2420 /* Find the bgp route node */
2421 dest = bgp_afi_node_lookup(bgp->rib[afi][safi], afi, safi, &p,
2422 &bgp->vrf_prd);
2423 if (!dest)
2424 return -1;
2425
2426 bgp_dest_unlock_node(dest);
2427
2428 switch (note) {
2429 case ZAPI_ROUTE_INSTALLED:
2430 new_select = NULL;
2431 /* Clear the flags so that route can be processed */
2432 if (CHECK_FLAG(dest->flags,
2433 BGP_NODE_FIB_INSTALL_PENDING)) {
2434 UNSET_FLAG(dest->flags,
2435 BGP_NODE_FIB_INSTALL_PENDING);
2436 SET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED);
2437 if (BGP_DEBUG(zebra, ZEBRA))
1a3519b6 2438 zlog_debug("route %pRN : INSTALLED", dest);
a77e2f4b
S		 2439 /* Find the best route */
2440 for (pi = dest->info; pi; pi = pi->next) {
2441 /* Process aggregate route */
2442 bgp_aggregate_increment(bgp, &p, pi,
2443 afi, safi);
2444 if (CHECK_FLAG(pi->flags,
2445 BGP_PATH_SELECTED))
2446 new_select = pi;
2447 }
2448 /* Advertise the route */
2449 if (new_select)
2450 group_announce_route(bgp, afi, safi,
2451 dest, new_select);
2452 else {
2453 flog_err(EC_BGP_INVALID_ROUTE,
1a3519b6
DS		 2454 "selected route %pRN not found",
2455 dest);
a77e2f4b
S		 2456 return -1;
2457 }
2458 }
2459 break;
2460 case ZAPI_ROUTE_REMOVED:
2461 /* Route deleted from dataplane, reset the installed flag
2462 * so that route can be reinstalled when client sends
2463 * route add later
2464 */
2465 UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED);
1a3519b6
DS		 2466 if (BGP_DEBUG(zebra, ZEBRA))
2467 zlog_debug("route %pRN: Removed from Fib", dest);
a77e2f4b
S		 2468 break;
2469 case ZAPI_ROUTE_FAIL_INSTALL:
1a3519b6
DS		 2470 if (BGP_DEBUG(zebra, ZEBRA))
2471 zlog_debug("route: %pRN Failed to Install into Fib",
2472 dest);
a77e2f4b
S		 2473 /* Error will be logged by zebra module */
2474 break;
2475 case ZAPI_ROUTE_BETTER_ADMIN_WON:
1a3519b6
DS		 2476 if (BGP_DEBUG(zebra, ZEBRA))
2477 zlog_debug("route: %pRN removed due to better admin won",
2478 dest);
a77e2f4b
S		 2479 /* No action required */
2480 break;
2481 case ZAPI_ROUTE_REMOVE_FAIL:
1a3519b6
DS		 2482 zlog_warn("%s: Route %pRN failure to remove",
2483 __func__, dest);
a77e2f4b
S		 2484 break;
2485 }
2486 return 0;
2487}
2488
6cfe5d15
PG		 2489/* this function is used to forge ip rule,
2490 * - either for iptable/ipset using fwmark id
121f9dee 2491 * - or for sample ip rule cmd
6cfe5d15 2492 */
30d50e6d 2493static void bgp_encode_pbr_rule_action(struct stream *s,
6cfe5d15
PG		 2494 struct bgp_pbr_action *pbra,
2495 struct bgp_pbr_rule *pbr)
30d50e6d 2496{
6cfe5d15 2497 struct prefix pfx;
f01e580f 2498 uint8_t fam = AF_INET;
e95666cb 2499 char ifname[INTERFACE_NAMSIZ];
30d50e6d 2500
9f1f03ec 2501 if (pbra->nh.type == NEXTHOP_TYPE_IPV6)
f01e580f 2502 fam = AF_INET6;
30d50e6d 2503 stream_putl(s, 0); /* seqno unused */
8112a7a0
PG		 2504 if (pbr)
2505 stream_putl(s, pbr->priority);
2506 else
2507 stream_putl(s, 0);
2508 /* ruleno unused - priority change
2509 * ruleno permits distinguishing various FS PBR entries
2510 * - FS PBR entries based on ipset/iptables
2511 * - FS PBR entries based on iprule
2512 * the latter may contain default routing information injected by FS
2513 */
6cfe5d15
PG		 2514 if (pbr)
2515 stream_putl(s, pbr->unique);
2516 else
2517 stream_putl(s, pbra->unique);
2518 if (pbr && pbr->flags & MATCH_IP_SRC_SET)
2519 memcpy(&pfx, &(pbr->src), sizeof(struct prefix));
2520 else {
2521 memset(&pfx, 0, sizeof(pfx));
f01e580f 2522 pfx.family = fam;
6cfe5d15
PG		 2523 }
2524 stream_putc(s, pfx.family);
2525 stream_putc(s, pfx.prefixlen);
2526 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2527
2528 stream_putw(s, 0); /* src port */
2529
6cfe5d15
PG		 2530 if (pbr && pbr->flags & MATCH_IP_DST_SET)
2531 memcpy(&pfx, &(pbr->dst), sizeof(struct prefix));
2532 else {
2533 memset(&pfx, 0, sizeof(pfx));
f01e580f 2534 pfx.family = fam;
6cfe5d15
PG		 2535 }
2536 stream_putc(s, pfx.family);
2537 stream_putc(s, pfx.prefixlen);
2538 stream_put(s, &pfx.u.prefix, prefix_blen(&pfx));
30d50e6d
PG		 2539
2540 stream_putw(s, 0); /* dst port */
e95666cb 2541 stream_putc(s, 0); /* dsfield */
6cfe5d15
PG		 2542 /* if pbr present, fwmark is not used */
2543 if (pbr)
2544 stream_putl(s, 0);
2545 else
2546 stream_putl(s, pbra->fwmark); /* fwmark */
30d50e6d
PG		 2547
2548 stream_putl(s, pbra->table_id);
2549
e95666cb
DS		 2550 memset(ifname, 0, sizeof(ifname));
2551 stream_put(s, ifname, INTERFACE_NAMSIZ); /* ifname unused */
30d50e6d
PG		 2552}
2553
2554static void bgp_encode_pbr_ipset_match(struct stream *s,
2555 struct bgp_pbr_match *pbim)
2556{
2557 stream_putl(s, pbim->unique);
2558 stream_putl(s, pbim->type);
a60b7031 2559 stream_putc(s, pbim->family);
30d50e6d
PG		 2560 stream_put(s, pbim->ipset_name,
2561 ZEBRA_IPSET_NAME_SIZE);
30d50e6d
PG		 2562}
2563
2564static void bgp_encode_pbr_ipset_entry_match(struct stream *s,
2565 struct bgp_pbr_match_entry *pbime)
2566{
2567 stream_putl(s, pbime->unique);
2568 /* check that back pointer is not null */
2569 stream_put(s, pbime->backpointer->ipset_name,
2570 ZEBRA_IPSET_NAME_SIZE);
2571
2572 stream_putc(s, pbime->src.family);
2573 stream_putc(s, pbime->src.prefixlen);
2574 stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src));
2575
2576 stream_putc(s, pbime->dst.family);
2577 stream_putc(s, pbime->dst.prefixlen);
2578 stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst));
f730e566
PG		 2579
2580 stream_putw(s, pbime->src_port_min);
2581 stream_putw(s, pbime->src_port_max);
2582 stream_putw(s, pbime->dst_port_min);
2583 stream_putw(s, pbime->dst_port_max);
2584 stream_putc(s, pbime->proto);
30d50e6d
PG		 2585}
2586
c16a0a62
PG		 2587static void bgp_encode_pbr_iptable_match(struct stream *s,
2588 struct bgp_pbr_action *bpa,
2589 struct bgp_pbr_match *pbm)
2590{
2591 stream_putl(s, pbm->unique2);
2592
2593 stream_putl(s, pbm->type);
2594
2595 stream_putl(s, pbm->flags);
2596
2597 /* TODO: correlate with what is contained
2598 * into bgp_pbr_action.
2599 * currently only forward supported
2600 */
2601 if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE)
2602 stream_putl(s, ZEBRA_IPTABLES_DROP);
2603 else
2604 stream_putl(s, ZEBRA_IPTABLES_FORWARD);
2605 stream_putl(s, bpa->fwmark);
2606 stream_put(s, pbm->ipset_name,
2607 ZEBRA_IPSET_NAME_SIZE);
a60b7031 2608 stream_putc(s, pbm->family);
83360720
PG		 2609 stream_putw(s, pbm->pkt_len_min);
2610 stream_putw(s, pbm->pkt_len_max);
2da7d62e
PG		 2611 stream_putw(s, pbm->tcp_flags);
2612 stream_putw(s, pbm->tcp_mask_flags);
4977bd6c 2613 stream_putc(s, pbm->dscp_value);
6f5617d8 2614 stream_putc(s, pbm->fragment);
f449d223 2615 stream_putc(s, pbm->protocol);
a60b7031 2616 stream_putw(s, pbm->flow_label);
c16a0a62
PG		 2617}
2618
ad4cbda1 2619/* BGP has established connection with Zebra. */
d62a17ae 2620static void bgp_zebra_connected(struct zclient *zclient)
7076bb2f 2621{
d62a17ae 2622 struct bgp *bgp;
7076bb2f 2623
d62a17ae 2624 zclient_num_connects++; /* increment even if not responding */
afbb1c59 2625
6bfcd0f1
IR		 2626 /* Send the client registration */
2627 bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT);
2628
d62a17ae 2629 /* At this point, we may or may not have BGP instances configured, but
2630 * we're only interested in the default VRF (others wouldn't have learnt
2631 * the VRF from Zebra yet.)
2632 */
2633 bgp = bgp_get_default();
2634 if (!bgp)
2635 return;
ad4cbda1 2636
d62a17ae 2637 bgp_zebra_instance_register(bgp);
ad4cbda1 2638
955bfd98 2639 /* tell label pool that zebra is connected */
e70e9f8e 2640 bgp_lp_event_zebra_up();
955bfd98 2641
d62a17ae 2642 /* TODO - What if we have peers and networks configured, do we have to
2643 * kick-start them?
2644 */
85ef4179 2645 BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer);
7076bb2f
FL		 2646}
2647
c44ab6f1
AK		 2648static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS)
2649{
2650 esi_t esi;
2651 struct bgp *bgp = NULL;
2652 struct stream *s = NULL;
2653 char buf[ESI_STR_LEN];
2654 struct in_addr originator_ip;
2655 uint8_t active;
74be8313 2656 uint8_t bypass;
74e2bd89 2657 uint16_t df_pref;
c44ab6f1
AK		 2658
2659 bgp = bgp_lookup_by_vrf_id(vrf_id);
2660 if (!bgp)
2661 return 0;
2662
2663 s = zclient->ibuf;
2664 stream_get(&esi, s, sizeof(esi_t));
2665 originator_ip.s_addr = stream_get_ipv4(s);
2666 active = stream_getc(s);
74e2bd89 2667 df_pref = stream_getw(s);
74be8313 2668 bypass = stream_getc(s);
c44ab6f1
AK		 2669
2670 if (BGP_DEBUG(zebra, ZEBRA))
74e2bd89 2671 zlog_debug(
74be8313
AK		 2672 "Rx add ESI %s originator-ip %pI4 active %u df_pref %u %s",
2673 esi_to_str(&esi, buf, sizeof(buf)), &originator_ip,
2674 active, df_pref, bypass ? "bypass" : "");
c44ab6f1 2675
74be8313
AK		 2676 bgp_evpn_local_es_add(bgp, &esi, originator_ip, active, df_pref,
2677 !!bypass);
c44ab6f1
AK		 2678
2679 return 0;
2680}
2681
2682static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS)
50f74cf1 2683{
2684 esi_t esi;
2685 struct bgp *bgp = NULL;
2686 struct stream *s = NULL;
2687 char buf[ESI_STR_LEN];
50f74cf1 2688
2689 memset(&esi, 0, sizeof(esi_t));
c44ab6f1
AK		 2690 bgp = bgp_lookup_by_vrf_id(vrf_id);
2691 if (!bgp)
2692 return 0;
2693
2694 s = zclient->ibuf;
2695 stream_get(&esi, s, sizeof(esi_t));
2696
2697 if (BGP_DEBUG(zebra, ZEBRA))
2698 zlog_debug("Rx del ESI %s",
2699 esi_to_str(&esi, buf, sizeof(buf)));
2700
2701 bgp_evpn_local_es_del(bgp, &esi);
2702
2703 return 0;
2704}
2705
2706static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS)
2707{
2708 esi_t esi;
2709 vni_t vni;
2710 struct bgp *bgp;
2711 struct stream *s;
2712 char buf[ESI_STR_LEN];
50f74cf1 2713
2714 bgp = bgp_lookup_by_vrf_id(vrf_id);
2715 if (!bgp)
2716 return 0;
2717
2718 s = zclient->ibuf;
2719 stream_get(&esi, s, sizeof(esi_t));
c44ab6f1 2720 vni = stream_getl(s);
50f74cf1 2721
2722 if (BGP_DEBUG(zebra, ZEBRA))
c44ab6f1
AK		 2723 zlog_debug("Rx %s ESI %s VNI %u",
2724 ZEBRA_VNI_ADD ? "add" : "del",
2725 esi_to_str(&esi, buf, sizeof(buf)), vni);
50f74cf1 2726
c44ab6f1
AK		 2727 if (cmd == ZEBRA_LOCAL_ES_EVI_ADD)
2728 bgp_evpn_local_es_evi_add(bgp, &esi, vni);
50f74cf1 2729 else
c44ab6f1
AK		 2730 bgp_evpn_local_es_evi_del(bgp, &esi, vni);
2731
50f74cf1 2732 return 0;
2733}
2734
121f9dee 2735static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS)
fe1dc5a3 2736{
c48d9f5f 2737 int filter = 0;
b67a60d2 2738 vni_t l3vni = 0;
14e814ea 2739 struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} };
b67a60d2 2740 struct in_addr originator_ip;
fe1dc5a3 2741 struct stream *s;
0483af6e 2742 ifindex_t svi_ifindex;
14e814ea 2743 bool is_anycast_mac = false;
fe1dc5a3 2744
14e814ea 2745 memset(&svi_rmac, 0, sizeof(struct ethaddr));
b67a60d2 2746 memset(&originator_ip, 0, sizeof(struct in_addr));
fe1dc5a3
MK		 2747 s = zclient->ibuf;
2748 l3vni = stream_getl(s);
b67a60d2 2749 if (cmd == ZEBRA_L3VNI_ADD) {
14e814ea 2750 stream_get(&svi_rmac, s, sizeof(struct ethaddr));
b67a60d2 2751 originator_ip.s_addr = stream_get_ipv4(s);
c48d9f5f 2752 stream_get(&filter, s, sizeof(int));
0483af6e 2753 svi_ifindex = stream_getl(s);
14e814ea
CS		 2754 stream_get(&vrr_rmac, s, sizeof(struct ethaddr));
2755 is_anycast_mac = stream_getl(s);
fe1dc5a3 2756
0483af6e 2757 if (BGP_DEBUG(zebra, ZEBRA))
c0d72166
DS		 2758 zlog_debug(
2759 "Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %pEA vrr-mac %pEA filter %s svi-if %u",
2760 vrf_id_to_name(vrf_id), l3vni, &svi_rmac,
2761 &vrr_rmac,
2762 filter ? "prefix-routes-only" : "none",
2763 svi_ifindex);
fe1dc5a3 2764
14e814ea
CS		 2765 bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac,
2766 originator_ip, filter, svi_ifindex,
2767 is_anycast_mac);
0483af6e 2768 } else {
2769 if (BGP_DEBUG(zebra, ZEBRA))
2770 zlog_debug("Rx L3-VNI DEL VRF %s VNI %u",
2771 vrf_id_to_name(vrf_id), l3vni);
2772
fe1dc5a3 2773 bgp_evpn_local_l3vni_del(l3vni, vrf_id);
0483af6e 2774 }
fe1dc5a3
MK		 2775
2776 return 0;
2777}
2778
121f9dee 2779static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS)
128ea8ab 2780{
d62a17ae 2781 struct stream *s;
2782 vni_t vni;
2783 struct bgp *bgp;
a4d82a8a 2784 struct in_addr vtep_ip = {INADDR_ANY};
29c53922 2785 vrf_id_t tenant_vrf_id = VRF_DEFAULT;
76d07c7a 2786 struct in_addr mcast_grp = {INADDR_ANY};
d62a17ae 2787
2788 s = zclient->ibuf;
2789 vni = stream_getl(s);
121f9dee 2790 if (cmd == ZEBRA_VNI_ADD) {
d62a17ae 2791 vtep_ip.s_addr = stream_get_ipv4(s);
29c53922 2792 stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t));
76d07c7a 2793 mcast_grp.s_addr = stream_get_ipv4(s);
29c53922
MK		 2794 }
2795
d62a17ae 2796 bgp = bgp_lookup_by_vrf_id(vrf_id);
2797 if (!bgp)
2798 return 0;
2799
2800 if (BGP_DEBUG(zebra, ZEBRA))
29c53922 2801 zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s",
121f9dee 2802 (cmd == ZEBRA_VNI_ADD) ? "add" : "del",
a4d82a8a
PZ		 2803 vrf_id_to_name(vrf_id), vni,
2804 vrf_id_to_name(tenant_vrf_id));
d62a17ae 2805
121f9dee 2806 if (cmd == ZEBRA_VNI_ADD)
d62a17ae 2807 return bgp_evpn_local_vni_add(
975a328e
DA		 2808 bgp, vni,
2809 vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id,
76d07c7a 2810 tenant_vrf_id, mcast_grp);
d62a17ae 2811 else
2812 return bgp_evpn_local_vni_del(bgp, vni);
128ea8ab 2813}
2814
121f9dee 2815static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS)
128ea8ab 2816{
d62a17ae 2817 struct stream *s;
2818 vni_t vni;
2819 struct bgp *bgp;
2820 struct ethaddr mac;
2821 struct ipaddr ip;
2822 int ipa_len;
f07e1c99 2823 uint8_t flags = 0;
2824 uint32_t seqnum = 0;
ec0ab544 2825 int state = 0;
c44ab6f1
AK		 2826 char buf2[ESI_STR_LEN];
2827 esi_t esi;
d62a17ae 2828
2829 memset(&ip, 0, sizeof(ip));
2830 s = zclient->ibuf;
2831 vni = stream_getl(s);
28328ea9 2832 stream_get(&mac.octet, s, ETH_ALEN);
d62a17ae 2833 ipa_len = stream_getl(s);
2834 if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN
2835 && ipa_len != IPV6_MAX_BYTELEN) {
e50f7cfd 2836 flog_err(EC_BGP_MACIP_LEN,
1c50c1c0 2837 "%u:Recv MACIP %s with invalid IP addr length %d",
121f9dee 2838 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del",
1c50c1c0 2839 ipa_len);
d62a17ae 2840 return -1;
2841 }
2842
2843 if (ipa_len) {
2844 ip.ipa_type =
2845 (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6;
2846 stream_get(&ip.ip.addr, s, ipa_len);
2847 }
121f9dee 2848 if (cmd == ZEBRA_MACIP_ADD) {
f07e1c99 2849 flags = stream_getc(s);
2850 seqnum = stream_getl(s);
c44ab6f1 2851 stream_get(&esi, s, sizeof(esi_t));
ec0ab544
AK		 2852 } else {
2853 state = stream_getl(s);
35fb444b 2854 memset(&esi, 0, sizeof(esi_t));
f07e1c99 2855 }
d62a17ae 2856
2857 bgp = bgp_lookup_by_vrf_id(vrf_id);
2858 if (!bgp)
2859 return 0;
2860
2861 if (BGP_DEBUG(zebra, ZEBRA))
c0d72166 2862 zlog_debug(
2dd0dde7 2863 "%u:Recv MACIP %s f 0x%x MAC %pEA IP %pIA VNI %u seq %u state %d ESI %s",
c0d72166
DS		 2864 vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags,
2865 &mac, &ip, vni, seqnum, state,
2866 esi_to_str(&esi, buf2, sizeof(buf2)));
d62a17ae 2867
121f9dee 2868 if (cmd == ZEBRA_MACIP_ADD)
f07e1c99 2869 return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip,
c44ab6f1 2870 flags, seqnum, &esi);
d62a17ae 2871 else
ec0ab544 2872 return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state);
128ea8ab 2873}
6aeb9e78 2874
121f9dee 2875static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS)
31310b25
MK		 2876{
2877 struct stream *s = NULL;
2878 struct bgp *bgp_vrf = NULL;
2879 struct prefix p;
31310b25
MK		 2880
2881 memset(&p, 0, sizeof(struct prefix));
2882 s = zclient->ibuf;
2883 stream_get(&p, s, sizeof(struct prefix));
2884
2885 bgp_vrf = bgp_lookup_by_vrf_id(vrf_id);
2886 if (!bgp_vrf)
2887 return;
2888
2889 if (BGP_DEBUG(zebra, ZEBRA))
2dbe669b 2890 zlog_debug("Recv prefix %pFX %s on vrf %s", &p,
31310b25
MK		 2891 (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL",
2892 vrf_id_to_name(vrf_id));
2893
2894 if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) {
2895
2896 if (p.family == AF_INET)
d90b788e
A		 2897 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
2898 AFI_IP, SAFI_UNICAST);
31310b25 2899 else
d90b788e
A		 2900 bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL,
2901 AFI_IP6, SAFI_UNICAST);
31310b25
MK		 2902
2903 } else {
2904 if (p.family == AF_INET)
d90b788e
A		 2905 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP,
2906 SAFI_UNICAST);
31310b25 2907 else
d90b788e
A		 2908 bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6,
2909 SAFI_UNICAST);
31310b25
MK		 2910 }
2911}
2912
121f9dee 2913static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS)
955bfd98
PZ		 2914{
2915 struct stream *s = NULL;
2916 uint8_t response_keep;
2917 uint32_t first;
2918 uint32_t last;
aec865e4
FR		 2919 uint8_t proto;
2920 unsigned short instance;
955bfd98
PZ		 2921
2922 s = zclient->ibuf;
aec865e4
FR		 2923 STREAM_GETC(s, proto);
2924 STREAM_GETW(s, instance);
955bfd98
PZ		 2925 STREAM_GETC(s, response_keep);
2926 STREAM_GETL(s, first);
2927 STREAM_GETL(s, last);
2928
aec865e4 2929 if (zclient->redist_default != proto) {
e50f7cfd 2930 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u",
1c50c1c0 2931 proto);
aec865e4
FR		 2932 return;
2933 }
2934 if (zclient->instance != instance) {
e50f7cfd 2935 flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u",
1c50c1c0 2936 proto);
aec865e4
FR		 2937 return;
2938 }
2939
955bfd98
PZ		 2940 if (first > last ||
2941 first < MPLS_LABEL_UNRESERVED_MIN ||
2942 last > MPLS_LABEL_UNRESERVED_MAX) {
2943
e50f7cfd 2944 flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u",
1c50c1c0 2945 __func__, first, last);
955bfd98
PZ		 2946 return;
2947 }
2948 if (BGP_DEBUG(zebra, ZEBRA)) {
2949 zlog_debug("Label Chunk assign: %u - %u (%u) ",
2950 first, last, response_keep);
2951 }
2952
e70e9f8e 2953 bgp_lp_event_chunk(response_keep, first, last);
955bfd98
PZ		 2954
2955stream_failure: /* for STREAM_GETX */
2956 return;
2957}
2958
342213ea
DS		 2959extern struct zebra_privs_t bgpd_privs;
2960
138c5a74
DS		 2961static int bgp_ifp_create(struct interface *ifp)
2962{
ef7bd2a3
DS		 2963 struct bgp *bgp;
2964
2965 if (BGP_DEBUG(zebra, ZEBRA))
2966 zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name);
2967
2968 bgp = bgp_lookup_by_vrf_id(ifp->vrf_id);
2969 if (!bgp)
2970 return 0;
2971
2972 bgp_mac_add_mac_entry(ifp);
2973
2974 bgp_update_interface_nbrs(bgp, ifp, ifp);
0d020cd6 2975 hook_call(bgp_vrf_status_changed, bgp, ifp);
138c5a74
DS		 2976 return 0;
2977}
2978
a0281b2e
HS		 2979static void bgp_zebra_process_srv6_locator_chunk(ZAPI_CALLBACK_ARGS)
2980{
2981 struct stream *s = NULL;
2982 uint8_t proto;
2983 uint16_t instance;
2984 uint16_t len;
2985 char name[256] = {0};
2986 struct prefix_ipv6 *chunk = NULL;
2987 chunk = prefix_ipv6_new();
2988
2989 s = zclient->ibuf;
2990 STREAM_GETC(s, proto);
2991 STREAM_GETW(s, instance);
2992
2993 STREAM_GETW(s, len);
2994 STREAM_GET(name, s, len);
2995
2996 STREAM_GETW(s, chunk->prefixlen);
2997 STREAM_GET(&chunk->prefix, s, 16);
2998
2999 if (zclient->redist_default != proto) {
3000 zlog_err("Got SRv6 Manager msg with wrong proto %u", proto);
3001 return;
3002 }
3003 if (zclient->instance != instance) {
3004 zlog_err("Got SRv6 Manager msg with wrong instance %u", proto);
3005 return;
3006 }
3007
3008 struct bgp *bgp = bgp_get_default();
3009 if (strcmp(bgp->srv6_locator_name, name) != 0) {
3010 zlog_info("name unmatch %s:%s",
3011 bgp->srv6_locator_name, name);
3012 return;
3013 }
3014
3015 struct listnode *node;
3016 struct prefix_ipv6 *c;
3017 for (ALL_LIST_ELEMENTS_RO(bgp->srv6_locator_chunks, node, c)) {
3018 if (!prefix_cmp(c, chunk))
3019 return;
3020 }
3021
3022 listnode_add(bgp->srv6_locator_chunks, chunk);
3023 vpn_leak_postchange_all();
3024 return;
3025
3026stream_failure:
3027 free(chunk);
3028
3029 zlog_err("%s: can't get locator_chunk!!", __func__);
3030 return;
3031}
3032
f533be73 3033void bgp_zebra_init(struct thread_master *master, unsigned short instance)
718e3744 3034{
d62a17ae 3035 zclient_num_connects = 0;
3036
138c5a74
DS		 3037 if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up,
3038 bgp_ifp_down, bgp_ifp_destroy);
3039
d62a17ae 3040 /* Set default values. */
26f63a1e 3041 zclient = zclient_new(master, &zclient_options_default);
342213ea 3042 zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs);
d62a17ae 3043 zclient->zebra_connected = bgp_zebra_connected;
3044 zclient->router_id_update = bgp_router_id_update;
d62a17ae 3045 zclient->interface_address_add = bgp_interface_address_add;
3046 zclient->interface_address_delete = bgp_interface_address_delete;
3047 zclient->interface_nbr_address_add = bgp_interface_nbr_address_add;
3048 zclient->interface_nbr_address_delete =
3049 bgp_interface_nbr_address_delete;
3050 zclient->interface_vrf_update = bgp_interface_vrf_update;
74489921
RW		 3051 zclient->redistribute_route_add = zebra_read_route;
3052 zclient->redistribute_route_del = zebra_read_route;
d62a17ae 3053 zclient->nexthop_update = bgp_read_nexthop_update;
3054 zclient->import_check_update = bgp_read_import_check_update;
3055 zclient->fec_update = bgp_read_fec_update;
c44ab6f1
AK		 3056 zclient->local_es_add = bgp_zebra_process_local_es_add;
3057 zclient->local_es_del = bgp_zebra_process_local_es_del;
d62a17ae 3058 zclient->local_vni_add = bgp_zebra_process_local_vni;
c44ab6f1
AK		 3059 zclient->local_es_evi_add = bgp_zebra_process_local_es_evi;
3060 zclient->local_es_evi_del = bgp_zebra_process_local_es_evi;
d62a17ae 3061 zclient->local_vni_del = bgp_zebra_process_local_vni;
3062 zclient->local_macip_add = bgp_zebra_process_local_macip;
3063 zclient->local_macip_del = bgp_zebra_process_local_macip;
fe1dc5a3
MK		 3064 zclient->local_l3vni_add = bgp_zebra_process_local_l3vni;
3065 zclient->local_l3vni_del = bgp_zebra_process_local_l3vni;
31310b25
MK		 3066 zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix;
3067 zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix;
955bfd98 3068 zclient->label_chunk = bgp_zebra_process_label_chunk;
30d50e6d
PG		 3069 zclient->rule_notify_owner = rule_notify_owner;
3070 zclient->ipset_notify_owner = ipset_notify_owner;
3071 zclient->ipset_entry_notify_owner = ipset_entry_notify_owner;
c16a0a62 3072 zclient->iptable_notify_owner = iptable_notify_owner;
a77e2f4b 3073 zclient->route_notify_owner = bgp_zebra_route_notify_owner;
f533be73 3074 zclient->instance = instance;
a0281b2e 3075 zclient->process_srv6_locator_chunk = bgp_zebra_process_srv6_locator_chunk;
718e3744 3076}
bb86c601 3077
d62a17ae 3078void bgp_zebra_destroy(void)
bb86c601 3079{
d62a17ae 3080 if (zclient == NULL)
3081 return;
3082 zclient_stop(zclient);
3083 zclient_free(zclient);
3084 zclient = NULL;
bb86c601 3085}
afbb1c59 3086
d62a17ae 3087int bgp_zebra_num_connects(void)
afbb1c59 3088{
d62a17ae 3089 return zclient_num_connects;
afbb1c59 3090}
30d50e6d 3091
6cfe5d15
PG		 3092void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra,
3093 struct bgp_pbr_rule *pbr,
3094 bool install)
30d50e6d
PG		 3095{
3096 struct stream *s;
3097
6cfe5d15 3098 if (pbra->install_in_progress && !pbr)
30d50e6d 3099 return;
6cfe5d15
PG		 3100 if (pbr && pbr->install_in_progress)
3101 return;
3102 if (BGP_DEBUG(zebra, ZEBRA)) {
3103 if (pbr)
15569c58 3104 zlog_debug("%s: table %d (ip rule) %d", __func__,
6cfe5d15
PG		 3105 pbra->table_id, install);
3106 else
15569c58 3107 zlog_debug("%s: table %d fwmark %d %d", __func__,
6cfe5d15
PG		 3108 pbra->table_id, pbra->fwmark, install);
3109 }
30d50e6d
PG		 3110 s = zclient->obuf;
3111 stream_reset(s);
3112
3113 zclient_create_header(s,
3114 install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE,
3115 VRF_DEFAULT);
3116 stream_putl(s, 1); /* send one pbr action */
3117
6cfe5d15 3118 bgp_encode_pbr_rule_action(s, pbra, pbr);
30d50e6d
PG		 3119
3120 stream_putw_at(s, 0, stream_get_endp(s));
8a3f8f2e
DS		 3121 if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE)
3122 && install) {
6cfe5d15
PG		 3123 if (!pbr)
3124 pbra->install_in_progress = true;
3125 else
3126 pbr->install_in_progress = true;
3127 }
30d50e6d
PG		 3128}
3129
3130void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install)
3131{
3132 struct stream *s;
3133
3134 if (pbrim->install_in_progress)
3135 return;
f0936054 3136 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3137 zlog_debug("%s: name %s type %d %d, ID %u", __func__,
3138 pbrim->ipset_name, pbrim->type, install,
3139 pbrim->unique);
30d50e6d
PG		 3140 s = zclient->obuf;
3141 stream_reset(s);
3142
3143 zclient_create_header(s,
3144 install ? ZEBRA_IPSET_CREATE :
3145 ZEBRA_IPSET_DESTROY,
3146 VRF_DEFAULT);
3147
3148 stream_putl(s, 1); /* send one pbr action */
3149
3150 bgp_encode_pbr_ipset_match(s, pbrim);
3151
3152 stream_putw_at(s, 0, stream_get_endp(s));
8a3f8f2e 3153 if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install)
30d50e6d
PG		 3154 pbrim->install_in_progress = true;
3155}
3156
3157void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime,
3158 bool install)
3159{
3160 struct stream *s;
3161
3162 if (pbrime->install_in_progress)
3163 return;
f0936054 3164 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3165 zlog_debug("%s: name %s %d %d, ID %u", __func__,
3166 pbrime->backpointer->ipset_name, pbrime->unique,
3167 install, pbrime->unique);
30d50e6d
PG		 3168 s = zclient->obuf;
3169 stream_reset(s);
3170
3171 zclient_create_header(s,
3172 install ? ZEBRA_IPSET_ENTRY_ADD :
3173 ZEBRA_IPSET_ENTRY_DELETE,
3174 VRF_DEFAULT);
3175
3176 stream_putl(s, 1); /* send one pbr action */
3177
3178 bgp_encode_pbr_ipset_entry_match(s, pbrime);
3179
3180 stream_putw_at(s, 0, stream_get_endp(s));
8a3f8f2e 3181 if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install)
30d50e6d
PG		 3182 pbrime->install_in_progress = true;
3183}
c16a0a62 3184
8f242187
PG		 3185static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s,
3186 uint8_t family)
4762c213
PG		 3187{
3188 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
3189 struct bgp_pbr_interface_head *head;
3190 struct bgp_pbr_interface *pbr_if;
3191 struct interface *ifp;
3192
3193 if (!bgp_pbr_cfg)
3194 return;
8f242187
PG		 3195 if (family == AF_INET)
3196 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
3197 else
3198 head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
4762c213 3199 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 3200 ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id);
4762c213
PG		 3201 if (ifp)
3202 stream_putl(s, ifp->ifindex);
3203 }
3204}
3205
8f242187 3206static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family)
4762c213
PG		 3207{
3208 struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg;
3209 struct bgp_pbr_interface_head *head;
3210 struct bgp_pbr_interface *pbr_if;
3211 int cnt = 0;
3212
3213 if (!bgp_pbr_cfg)
3214 return 0;
8f242187
PG		 3215 if (family == AF_INET)
3216 head = &(bgp_pbr_cfg->ifaces_by_name_ipv4);
3217 else
3218 head = &(bgp_pbr_cfg->ifaces_by_name_ipv6);
4762c213 3219 RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) {
a36898e7 3220 if (if_lookup_by_name(pbr_if->name, bgp->vrf_id))
4762c213
PG		 3221 cnt++;
3222 }
3223 return cnt;
3224}
3225
c16a0a62
PG		 3226void bgp_send_pbr_iptable(struct bgp_pbr_action *pba,
3227 struct bgp_pbr_match *pbm,
3228 bool install)
3229{
3230 struct stream *s;
b5c40105 3231 int ret = 0;
4762c213 3232 int nb_interface;
c16a0a62
PG		 3233
3234 if (pbm->install_iptable_in_progress)
3235 return;
f0936054 3236 if (BGP_DEBUG(zebra, ZEBRA))
15569c58
DA		 3237 zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__,
3238 pbm->ipset_name, pbm->type, pba->fwmark, install,
88055124 3239 pbm->unique2);
c16a0a62
PG		 3240 s = zclient->obuf;
3241 stream_reset(s);
3242
3243 zclient_create_header(s,
3244 install ? ZEBRA_IPTABLE_ADD :
3245 ZEBRA_IPTABLE_DELETE,
3246 VRF_DEFAULT);
3247
3248 bgp_encode_pbr_iptable_match(s, pba, pbm);
8f242187 3249 nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family);
4762c213
PG		 3250 stream_putl(s, nb_interface);
3251 if (nb_interface)
8f242187 3252 bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family);
c16a0a62 3253 stream_putw_at(s, 0, stream_get_endp(s));
b5c40105
PG		 3254 ret = zclient_send_message(zclient);
3255 if (install) {
8a3f8f2e 3256 if (ret != ZCLIENT_SEND_FAILURE)
b5c40105
PG		 3257 pba->refcnt++;
3258 else
3259 pbm->install_iptable_in_progress = true;
a6b07429 3260 }
c16a0a62 3261}
f7df1907
PG		 3262
3263/* inject in table <table_id> a default route to:
3264 * - if nexthop IP is present : to this nexthop
3265 * - if vrf is different from local : to the matching VRF
3266 */
3267void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh,
3268 afi_t afi, uint32_t table_id, bool announce)
3269{
3270 struct zapi_nexthop *api_nh;
3271 struct zapi_route api;
3272 struct prefix p;
3273
f01e580f
PG		 3274 if (!nh || (nh->type != NEXTHOP_TYPE_IPV4
3275 && nh->type != NEXTHOP_TYPE_IPV6)
f7df1907
PG		 3276 || nh->vrf_id == VRF_UNKNOWN)
3277 return;
3278 memset(&p, 0, sizeof(struct prefix));
f01e580f 3279 if (afi != AFI_IP && afi != AFI_IP6)
f7df1907 3280 return;
f01e580f 3281 p.family = afi2family(afi);
f7df1907
PG		 3282 memset(&api, 0, sizeof(api));
3283 api.vrf_id = bgp->vrf_id;
3284 api.type = ZEBRA_ROUTE_BGP;
3285 api.safi = SAFI_UNICAST;
3286 api.prefix = p;
3287 api.tableid = table_id;
3288 api.nexthop_num = 1;
3289 SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID);
3290 SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
3291 api_nh = &api.nexthops[0];
3292
38a8c751
DS		 3293 api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT;
3294 SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
3295
f7df1907 3296 /* redirect IP */
f01e580f 3297 if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) {
f7df1907
PG		 3298 char buff[PREFIX_STRLEN];
3299
3300 api_nh->vrf_id = nh->vrf_id;
3301 api_nh->gate.ipv4 = nh->gate.ipv4;
3302 api_nh->type = NEXTHOP_TYPE_IPV4;
3303
3304 inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN);
3305 if (BGP_DEBUG(zebra, ZEBRA))
f01e580f
PG		 3306 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
3307 announce ? "adding" : "withdrawing",
3308 buff, table_id);
3309 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3310 : ZEBRA_ROUTE_DELETE,
3311 zclient, &api);
3312 } else if (afi == AFI_IP6 &&
3313 memcmp(&nh->gate.ipv6,
3314 &in6addr_any, sizeof(struct in6_addr))) {
3315 char buff[PREFIX_STRLEN];
3316
3317 api_nh->vrf_id = nh->vrf_id;
3318 memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6,
3319 sizeof(struct in6_addr));
3320 api_nh->type = NEXTHOP_TYPE_IPV6;
3321
3322 inet_ntop(AF_INET6, &(nh->gate.ipv6), buff, INET_ADDRSTRLEN);
3323 if (BGP_DEBUG(zebra, ZEBRA))
3324 zlog_debug("BGP: %s default route to %s table %d (redirect IP)",
d887503c 3325 announce ? "adding" : "withdrawing",
f7df1907
PG		 3326 buff, table_id);
3327 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3328 : ZEBRA_ROUTE_DELETE,
3329 zclient, &api);
3330 } else if (nh->vrf_id != bgp->vrf_id) {
3331 struct vrf *vrf;
eb4244f8 3332 struct interface *ifp;
f7df1907 3333
eb4244f8 3334 vrf = vrf_lookup_by_id(nh->vrf_id);
f7df1907
PG		 3335 if (!vrf)
3336 return;
eb4244f8
PG		 3337 /* create default route with interface <VRF>
3338 * with nexthop-vrf <VRF>
f7df1907 3339 */
eb4244f8
PG		 3340 ifp = if_lookup_by_name_all_vrf(vrf->name);
3341 if (!ifp)
3342 return;
3343 api_nh->vrf_id = nh->vrf_id;
3344 api_nh->type = NEXTHOP_TYPE_IFINDEX;
3345 api_nh->ifindex = ifp->ifindex;
3346 if (BGP_DEBUG(zebra, ZEBRA))
d887503c
PG		 3347 zlog_info("BGP: %s default route to %s table %d (redirect VRF)",
3348 announce ? "adding" : "withdrawing",
eb4244f8
PG		 3349 vrf->name, table_id);
3350 zclient_route_send(announce ? ZEBRA_ROUTE_ADD
3351 : ZEBRA_ROUTE_DELETE,
3352 zclient, &api);
f7df1907
PG		 3353 return;
3354 }
3355}
85ef4179 3356
3357/* Send capabilities to RIB */
3358int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable)
3359{
3360 struct zapi_cap api;
3361 int ret = BGP_GR_SUCCESS;
3362
3363 if (zclient == NULL) {
3364 if (BGP_DEBUG(zebra, ZEBRA))
3365 zlog_debug("zclient invalid");
3366 return BGP_GR_FAILURE;
3367 }
3368
3369 /* Check if the client is connected */
3370 if ((zclient->sock < 0) || (zclient->t_connect)) {
3371 if (BGP_DEBUG(zebra, ZEBRA))
3372 zlog_debug("client not connected");
3373 return BGP_GR_FAILURE;
3374 }
3375
3376 /* Check if capability is already sent. If the flag force is set
3377 * send the capability since this can be initial bgp configuration
3378 */
3379 memset(&api, 0, sizeof(struct zapi_cap));
3380 if (disable) {
3381 api.cap = ZEBRA_CLIENT_GR_DISABLE;
3382 api.vrf_id = bgp->vrf_id;
3383 } else {
3384 api.cap = ZEBRA_CLIENT_GR_CAPABILITIES;
3385 api.stale_removal_time = bgp->rib_stale_time;
3386 api.vrf_id = bgp->vrf_id;
3387 }
3388
36235319 3389 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
7cfdb485 3390 == ZCLIENT_SEND_FAILURE) {
2ba1fe69 3391 zlog_err("error sending capability");
85ef4179 3392 ret = BGP_GR_FAILURE;
3393 } else {
3394 if (disable)
3395 bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE;
3396 else
3397 bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE;
3398
3399 if (BGP_DEBUG(zebra, ZEBRA))
3400 zlog_debug("send capabilty success");
3401 ret = BGP_GR_SUCCESS;
3402 }
3403 return ret;
3404}
3405
3406/* Send route update pesding or completed status to RIB for the
3407 * specific AFI, SAFI
3408 */
3409int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type)
3410{
2ba1fe69 3411 struct zapi_cap api = {0};
85ef4179 3412
3413 if (zclient == NULL) {
3414 if (BGP_DEBUG(zebra, ZEBRA))
2ba1fe69 3415 zlog_debug("zclient == NULL, invalid");
85ef4179 3416 return BGP_GR_FAILURE;
3417 }
3418
3419 /* Check if the client is connected */
3420 if ((zclient->sock < 0) || (zclient->t_connect)) {
3421 if (BGP_DEBUG(zebra, ZEBRA))
3422 zlog_debug("client not connected");
3423 return BGP_GR_FAILURE;
3424 }
3425
85ef4179 3426 api.afi = afi;
3427 api.safi = safi;
3428 api.vrf_id = vrf_id;
3429 api.cap = type;
3430
36235319 3431 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
7cfdb485 3432 == ZCLIENT_SEND_FAILURE) {
85ef4179 3433 if (BGP_DEBUG(zebra, ZEBRA))
3434 zlog_debug("error sending capability");
3435 return BGP_GR_FAILURE;
3436 }
3437 return BGP_GR_SUCCESS;
3438}
3439
3440
85ef4179 3441/* Send RIB stale timer update */
3442int bgp_zebra_stale_timer_update(struct bgp *bgp)
3443{
3444 struct zapi_cap api;
3445
3446 if (zclient == NULL) {
3447 if (BGP_DEBUG(zebra, ZEBRA))
3448 zlog_debug("zclient invalid");
3449 return BGP_GR_FAILURE;
3450 }
3451
3452 /* Check if the client is connected */
3453 if ((zclient->sock < 0) || (zclient->t_connect)) {
3454 if (BGP_DEBUG(zebra, ZEBRA))
3455 zlog_debug("client not connected");
3456 return BGP_GR_FAILURE;
3457 }
3458
3459 memset(&api, 0, sizeof(struct zapi_cap));
3460 api.cap = ZEBRA_CLIENT_RIB_STALE_TIME;
3461 api.stale_removal_time = bgp->rib_stale_time;
3462 api.vrf_id = bgp->vrf_id;
36235319 3463 if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api)
7cfdb485 3464 == ZCLIENT_SEND_FAILURE) {
85ef4179 3465 if (BGP_DEBUG(zebra, ZEBRA))
3466 zlog_debug("error sending capability");
3467 return BGP_GR_FAILURE;
3468 }
3469 if (BGP_DEBUG(zebra, ZEBRA))
3470 zlog_debug("send capabilty success");
3471 return BGP_GR_SUCCESS;
3472}
a0281b2e
HS		 3473
3474int bgp_zebra_srv6_manager_get_locator_chunk(const char *name)
3475{
3476 return srv6_manager_get_locator_chunk(zclient, name);
3477}
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