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Commit | Line | Data |
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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" |
a383bfc7 | 67 | #include "bgpd/bgp_trace.h" |
959331a3 RW |
68 | #include "bgpd/bgp_community.h" |
69 | #include "bgpd/bgp_lcommunity.h" | |
6b0655a2 | 70 | |
718e3744 | 71 | /* All information about zebra. */ |
228da428 | 72 | struct zclient *zclient = NULL; |
718e3744 | 73 | |
0d020cd6 PR |
74 | /* hook to indicate vrf status change for SNMP */ |
75 | DEFINE_HOOK(bgp_vrf_status_changed, (struct bgp *bgp, struct interface *ifp), | |
8451921b | 76 | (bgp, ifp)); |
0d020cd6 | 77 | |
4cd690ae PG |
78 | DEFINE_MTYPE_STATIC(BGPD, BGP_IF_INFO, "BGP interface context"); |
79 | ||
ad4cbda1 | 80 | /* Can we install into zebra? */ |
3dc339cd | 81 | static inline bool bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 82 | { |
d62a17ae | 83 | if (zclient->sock <= 0) |
3dc339cd | 84 | return false; |
ad4cbda1 | 85 | |
bb4ef1ae | 86 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
15569c58 DA |
87 | zlog_debug( |
88 | "%s: No zebra instance to talk to, not installing information", | |
89 | __func__); | |
3dc339cd | 90 | return false; |
bb4ef1ae | 91 | } |
ad4cbda1 | 92 | |
3dc339cd | 93 | return true; |
ad4cbda1 | 94 | } |
95 | ||
afbb1c59 LB |
96 | int zclient_num_connects; |
97 | ||
18a6dce6 | 98 | /* Router-id update message from zebra. */ |
121f9dee | 99 | static int bgp_router_id_update(ZAPI_CALLBACK_ARGS) |
718e3744 | 100 | { |
d62a17ae | 101 | struct prefix router_id; |
718e3744 | 102 | |
d62a17ae | 103 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 104 | |
2dbe669b DA |
105 | if (BGP_DEBUG(zebra, ZEBRA)) |
106 | zlog_debug("Rx Router Id update VRF %u Id %pFX", vrf_id, | |
107 | &router_id); | |
a39275d7 | 108 | |
d62a17ae | 109 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
110 | return 0; | |
718e3744 | 111 | } |
112 | ||
fb018d25 | 113 | /* Nexthop update message from zebra. */ |
121f9dee | 114 | static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS) |
fb018d25 | 115 | { |
121f9dee | 116 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 117 | return 0; |
078430f6 DS |
118 | } |
119 | ||
4a04e5f7 | 120 | /* Set or clear interface on which unnumbered neighbor is configured. This |
121 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
122 | * interface. | |
123 | */ | |
d62a17ae | 124 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
125 | struct interface *upd_ifp) | |
4a04e5f7 | 126 | { |
d62a17ae | 127 | struct listnode *node, *nnode; |
128 | struct peer *peer; | |
129 | ||
130 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
131 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
132 | if (upd_ifp) { | |
133 | peer->ifp = upd_ifp; | |
134 | bgp_zebra_initiate_radv(bgp, peer); | |
135 | } else { | |
136 | bgp_zebra_terminate_radv(bgp, peer); | |
137 | peer->ifp = upd_ifp; | |
138 | } | |
139 | } | |
140 | } | |
4a04e5f7 | 141 | } |
142 | ||
a243d1db | 143 | static int bgp_read_fec_update(ZAPI_CALLBACK_ARGS) |
cd1964ff | 144 | { |
d62a17ae | 145 | bgp_parse_fec_update(); |
146 | return 0; | |
cd1964ff DS |
147 | } |
148 | ||
d62a17ae | 149 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 150 | { |
d62a17ae | 151 | struct listnode *node, *nnode; |
152 | struct peer *peer; | |
153 | ||
154 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
155 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
feb17238 | 156 | && !peer_established(peer)) { |
d62a17ae | 157 | if (peer_active(peer)) |
158 | BGP_EVENT_ADD(peer, BGP_Stop); | |
159 | BGP_EVENT_ADD(peer, BGP_Start); | |
160 | } | |
161 | } | |
a80beece DS |
162 | } |
163 | ||
d62a17ae | 164 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 165 | { |
d62a17ae | 166 | struct listnode *node; |
167 | struct connected *connected; | |
168 | struct interface *ifp; | |
169 | struct prefix *p; | |
170 | ||
171 | /* Kick-off the FSM for any relevant peers only if there is a | |
172 | * valid local address on the interface. | |
173 | */ | |
174 | ifp = ifc->ifp; | |
175 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
176 | p = connected->address; | |
177 | if (p->family == AF_INET6 | |
178 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
179 | break; | |
180 | } | |
181 | if (!connected) | |
182 | return; | |
183 | ||
184 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
185 | } |
186 | ||
d62a17ae | 187 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
188 | int del) | |
a80beece | 189 | { |
d62a17ae | 190 | struct listnode *node, *nnode; |
191 | struct peer *peer; | |
192 | struct interface *ifp; | |
193 | ||
194 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
195 | if (peer->conf_if | |
196 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
197 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
198 | BGP_EVENT_ADD(peer, BGP_Stop); | |
199 | } | |
200 | } | |
201 | /* Free neighbor also, if we're asked to. */ | |
202 | if (del) { | |
203 | ifp = ifc->ifp; | |
204 | listnode_delete(ifp->nbr_connected, ifc); | |
205 | nbr_connected_free(ifc); | |
206 | } | |
a80beece DS |
207 | } |
208 | ||
3c3c3252 | 209 | static int bgp_ifp_destroy(struct interface *ifp) |
718e3744 | 210 | { |
d62a17ae | 211 | struct bgp *bgp; |
718e3744 | 212 | |
096f7609 | 213 | bgp = ifp->vrf->info; |
a4499b83 | 214 | |
d62a17ae | 215 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
216 | zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf->vrf_id, |
217 | ifp->name); | |
a39275d7 | 218 | |
0d020cd6 | 219 | if (bgp) { |
85751d1d | 220 | bgp_update_interface_nbrs(bgp, ifp, NULL); |
0d020cd6 PR |
221 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
222 | } | |
64745052 | 223 | |
6a69ac51 DS |
224 | bgp_mac_del_mac_entry(ifp); |
225 | ||
d62a17ae | 226 | return 0; |
718e3744 | 227 | } |
228 | ||
ddbf3e60 | 229 | static int bgp_ifp_up(struct interface *ifp) |
718e3744 | 230 | { |
d62a17ae | 231 | struct connected *c; |
232 | struct nbr_connected *nc; | |
233 | struct listnode *node, *nnode; | |
234 | struct bgp *bgp; | |
6aeb9e78 | 235 | |
096f7609 | 236 | bgp = ifp->vrf->info; |
718e3744 | 237 | |
6a69ac51 DS |
238 | bgp_mac_add_mac_entry(ifp); |
239 | ||
d62a17ae | 240 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
241 | zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf->vrf_id, |
242 | 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 | 259 | static 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 | |
096f7609 | 267 | bgp = ifp->vrf->info; |
718e3744 | 268 | |
6a69ac51 DS |
269 | bgp_mac_del_mac_entry(ifp); |
270 | ||
d62a17ae | 271 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
272 | zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf->vrf_id, |
273 | ifp->name); | |
ad4cbda1 | 274 | |
85751d1d DS |
275 | if (!bgp) |
276 | return 0; | |
277 | ||
d62a17ae | 278 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
279 | bgp_connected_delete(bgp, c); | |
718e3744 | 280 | |
d62a17ae | 281 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
282 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 283 | |
d62a17ae | 284 | /* Fast external-failover */ |
c19fe3c7 | 285 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 286 | |
d62a17ae | 287 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
50bd8995 | 288 | /* Take down directly connected peers. */ |
c8d6f0d6 | 289 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 | 290 | && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED)) |
d62a17ae | 291 | continue; |
718e3744 | 292 | |
d62a17ae | 293 | if (ifp == peer->nexthop.ifp) { |
294 | BGP_EVENT_ADD(peer, BGP_Stop); | |
295 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
296 | } | |
297 | } | |
298 | } | |
718e3744 | 299 | |
0d020cd6 | 300 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
8761cd6d DS |
301 | bgp_nht_ifp_down(ifp); |
302 | ||
d62a17ae | 303 | return 0; |
718e3744 | 304 | } |
305 | ||
121f9dee | 306 | static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 307 | { |
d62a17ae | 308 | struct connected *ifc; |
2f9123e0 | 309 | struct bgp *bgp; |
bc6d1b15 P |
310 | struct peer *peer; |
311 | struct prefix *addr; | |
312 | struct listnode *node, *nnode; | |
313 | afi_t afi; | |
314 | safi_t safi; | |
2f9123e0 DS |
315 | |
316 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 317 | |
121f9dee | 318 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 319 | |
320 | if (ifc == NULL) | |
321 | return 0; | |
322 | ||
2dbe669b DA |
323 | if (bgp_debug_zebra(ifc->address)) |
324 | zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id, | |
325 | ifc->ifp->name, ifc->address); | |
d62a17ae | 326 | |
85751d1d DS |
327 | if (!bgp) |
328 | return 0; | |
329 | ||
d62a17ae | 330 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 331 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 332 | |
d62a17ae | 333 | /* If we have learnt of any neighbors on this interface, |
334 | * check to kick off any BGP interface-based neighbors, | |
335 | * but only if this is a link-local address. | |
336 | */ | |
337 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
338 | && !list_isempty(ifc->ifp->nbr_connected)) | |
339 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
bc6d1b15 P |
340 | else { |
341 | addr = ifc->address; | |
342 | ||
343 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
344 | if (addr->family == AF_INET) | |
345 | continue; | |
346 | ||
347 | /* | |
348 | * If the Peer's interface name matches the | |
349 | * interface name for which BGP received the | |
350 | * update and if the received interface address | |
351 | * is a globalV6 and if the peer is currently | |
352 | * using a v4-mapped-v6 addr or a link local | |
353 | * address, then copy the Rxed global v6 addr | |
354 | * into peer's v6_global and send updates out | |
355 | * with new nexthop addr. | |
356 | */ | |
357 | if ((peer->conf_if && | |
358 | (strcmp(peer->conf_if, ifc->ifp->name) == | |
359 | 0)) && | |
360 | !IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6) && | |
361 | ((IS_MAPPED_IPV6( | |
362 | &peer->nexthop.v6_global)) || | |
363 | IN6_IS_ADDR_LINKLOCAL( | |
364 | &peer->nexthop.v6_global))) { | |
365 | ||
366 | if (bgp_debug_zebra(ifc->address)) { | |
367 | zlog_debug( | |
368 | "Update peer %pBP's current intf addr %pI6 and send updates", | |
369 | peer, | |
370 | &peer->nexthop | |
371 | .v6_global); | |
372 | } | |
373 | memcpy(&peer->nexthop.v6_global, | |
374 | &addr->u.prefix6, | |
375 | IPV6_MAX_BYTELEN); | |
376 | FOREACH_AFI_SAFI (afi, safi) | |
377 | bgp_announce_route(peer, afi, | |
378 | safi, true); | |
379 | } | |
380 | } | |
381 | } | |
d62a17ae | 382 | } |
383 | ||
384 | return 0; | |
718e3744 | 385 | } |
386 | ||
121f9dee | 387 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 388 | { |
f3d20a2a | 389 | struct listnode *node, *nnode; |
d62a17ae | 390 | struct connected *ifc; |
f3d20a2a | 391 | struct peer *peer; |
2bb8b49c | 392 | struct bgp *bgp; |
f3d20a2a | 393 | struct prefix *addr; |
6aeb9e78 | 394 | |
2f9123e0 | 395 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 396 | |
121f9dee | 397 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 398 | |
d62a17ae | 399 | if (ifc == NULL) |
400 | return 0; | |
718e3744 | 401 | |
2dbe669b DA |
402 | if (bgp_debug_zebra(ifc->address)) |
403 | zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id, | |
404 | ifc->ifp->name, ifc->address); | |
a39275d7 | 405 | |
85751d1d | 406 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 407 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 408 | } |
718e3744 | 409 | |
f3d20a2a DS |
410 | addr = ifc->address; |
411 | ||
412 | if (bgp) { | |
413 | /* | |
414 | * When we are using the v6 global as part of the peering | |
415 | * nexthops and we are removing it, then we need to | |
416 | * clear the peer data saved for that nexthop and | |
417 | * cause a re-announcement of the route. Since | |
418 | * we do not want the peering to bounce. | |
419 | */ | |
420 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
2bb8b49c DS |
421 | afi_t afi; |
422 | safi_t safi; | |
423 | ||
f3d20a2a DS |
424 | if (addr->family == AF_INET) |
425 | continue; | |
426 | ||
427 | if (!IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6) | |
428 | && memcmp(&peer->nexthop.v6_global, | |
429 | &addr->u.prefix6, 16) | |
430 | == 0) { | |
431 | memset(&peer->nexthop.v6_global, 0, 16); | |
432 | FOREACH_AFI_SAFI (afi, safi) | |
433 | bgp_announce_route(peer, afi, safi, | |
434 | true); | |
435 | } | |
436 | } | |
437 | } | |
438 | ||
721c0857 | 439 | connected_free(&ifc); |
718e3744 | 440 | |
d62a17ae | 441 | return 0; |
718e3744 | 442 | } |
443 | ||
121f9dee | 444 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 445 | { |
d62a17ae | 446 | struct nbr_connected *ifc = NULL; |
447 | struct bgp *bgp; | |
448 | ||
121f9dee | 449 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 450 | |
451 | if (ifc == NULL) | |
452 | return 0; | |
453 | ||
2dbe669b DA |
454 | if (bgp_debug_zebra(ifc->address)) |
455 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX", | |
456 | vrf_id, ifc->ifp->name, ifc->address); | |
d62a17ae | 457 | |
458 | if (if_is_operative(ifc->ifp)) { | |
459 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
460 | if (bgp) | |
461 | bgp_nbr_connected_add(bgp, ifc); | |
462 | } | |
463 | ||
464 | return 0; | |
a80beece DS |
465 | } |
466 | ||
121f9dee | 467 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 468 | { |
d62a17ae | 469 | struct nbr_connected *ifc = NULL; |
470 | struct bgp *bgp; | |
6aeb9e78 | 471 | |
121f9dee | 472 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 473 | |
d62a17ae | 474 | if (ifc == NULL) |
475 | return 0; | |
a80beece | 476 | |
2dbe669b DA |
477 | if (bgp_debug_zebra(ifc->address)) |
478 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX", | |
479 | vrf_id, ifc->ifp->name, ifc->address); | |
a80beece | 480 | |
d62a17ae | 481 | if (if_is_operative(ifc->ifp)) { |
482 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
483 | if (bgp) | |
484 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
485 | } | |
a80beece | 486 | |
d62a17ae | 487 | nbr_connected_free(ifc); |
a80beece | 488 | |
d62a17ae | 489 | return 0; |
a80beece DS |
490 | } |
491 | ||
bfcd43b2 | 492 | /* VRF update for an interface. */ |
121f9dee | 493 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 494 | { |
d62a17ae | 495 | struct interface *ifp; |
496 | vrf_id_t new_vrf_id; | |
497 | struct connected *c; | |
498 | struct nbr_connected *nc; | |
499 | struct listnode *node, *nnode; | |
500 | struct bgp *bgp; | |
c19fe3c7 | 501 | struct peer *peer; |
bfcd43b2 | 502 | |
d62a17ae | 503 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
504 | &new_vrf_id); | |
505 | if (!ifp) | |
506 | return 0; | |
bfcd43b2 | 507 | |
253b7158 | 508 | if (BGP_DEBUG(zebra, ZEBRA)) |
d62a17ae | 509 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, |
510 | ifp->name, new_vrf_id); | |
bfcd43b2 | 511 | |
d62a17ae | 512 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 513 | |
85751d1d DS |
514 | if (bgp) { |
515 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
516 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 517 | |
85751d1d DS |
518 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
519 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 520 | |
85751d1d DS |
521 | /* Fast external-failover */ |
522 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
523 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
c8d6f0d6 | 524 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 DA |
525 | && (peer->gtsm_hops |
526 | != BGP_GTSM_HOPS_CONNECTED)) | |
85751d1d | 527 | continue; |
bfcd43b2 | 528 | |
85751d1d DS |
529 | if (ifp == peer->nexthop.ifp) |
530 | BGP_EVENT_ADD(peer, BGP_Stop); | |
531 | } | |
d62a17ae | 532 | } |
533 | } | |
bfcd43b2 | 534 | |
a36898e7 | 535 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 536 | |
d62a17ae | 537 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
538 | if (!bgp) | |
539 | return 0; | |
bfcd43b2 | 540 | |
d62a17ae | 541 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
542 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 543 | |
d62a17ae | 544 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
545 | bgp_nbr_connected_add(bgp, nc); | |
0d020cd6 PR |
546 | |
547 | hook_call(bgp_vrf_status_changed, bgp, ifp); | |
d62a17ae | 548 | return 0; |
bfcd43b2 | 549 | } |
550 | ||
718e3744 | 551 | /* Zebra route add and delete treatment. */ |
121f9dee | 552 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 553 | { |
9de1f7ff | 554 | enum nexthop_types_t nhtype; |
0789eb69 | 555 | enum blackhole_type bhtype = BLACKHOLE_UNSPEC; |
74489921 | 556 | struct zapi_route api; |
0789eb69 | 557 | union g_addr nexthop = {}; |
9de1f7ff | 558 | ifindex_t ifindex; |
74489921 | 559 | int add, i; |
d62a17ae | 560 | struct bgp *bgp; |
561 | ||
562 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
563 | if (!bgp) | |
564 | return 0; | |
565 | ||
74489921 RW |
566 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
567 | return -1; | |
d62a17ae | 568 | |
74489921 RW |
569 | /* we completely ignore srcdest routes for now. */ |
570 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
571 | return 0; | |
d62a17ae | 572 | |
74489921 RW |
573 | /* ignore link-local address. */ |
574 | if (api.prefix.family == AF_INET6 | |
575 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
576 | return 0; | |
d62a17ae | 577 | |
74489921 | 578 | ifindex = api.nexthops[0].ifindex; |
9de1f7ff | 579 | nhtype = api.nexthops[0].type; |
d62a17ae | 580 | |
0789eb69 KM |
581 | /* api_nh structure has union of gate and bh_type */ |
582 | if (nhtype == NEXTHOP_TYPE_BLACKHOLE) { | |
583 | /* bh_type is only applicable if NEXTHOP_TYPE_BLACKHOLE*/ | |
584 | bhtype = api.nexthops[0].bh_type; | |
585 | } else | |
586 | nexthop = api.nexthops[0].gate; | |
587 | ||
121f9dee | 588 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 589 | if (add) { |
d62a17ae | 590 | /* |
591 | * The ADD message is actually an UPDATE and there is no | |
592 | * explicit DEL | |
593 | * for a prior redistributed route, if any. So, perform an | |
594 | * implicit | |
595 | * DEL processing for the same redistributed route from any | |
596 | * other | |
597 | * source type. | |
598 | */ | |
599 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
600 | if (i != api.type) | |
74489921 | 601 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 602 | api.instance); |
603 | } | |
604 | ||
605 | /* Now perform the add/update. */ | |
74489921 | 606 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
0789eb69 KM |
607 | nhtype, bhtype, api.distance, api.metric, |
608 | api.type, api.instance, api.tag); | |
d62a17ae | 609 | } else { |
74489921 RW |
610 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
611 | api.instance); | |
a39275d7 | 612 | } |
d62a17ae | 613 | |
74489921 | 614 | if (bgp_debug_zebra(&api.prefix)) { |
2dbe669b | 615 | char buf[PREFIX_STRLEN]; |
74489921 | 616 | |
77e62f2b | 617 | if (add) { |
2dbe669b DA |
618 | inet_ntop(api.prefix.family, &nexthop, buf, |
619 | sizeof(buf)); | |
77e62f2b | 620 | zlog_debug( |
801bb996 | 621 | "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI, |
77e62f2b | 622 | vrf_id, zebra_route_string(api.type), |
2dbe669b | 623 | api.instance, &api.prefix, buf, nhtype, ifindex, |
801bb996 | 624 | api.metric, api.distance, api.tag); |
77e62f2b | 625 | } else { |
6bdbcbf1 | 626 | zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id, |
2dbe669b | 627 | zebra_route_string(api.type), api.instance, |
6bdbcbf1 | 628 | &api.prefix); |
77e62f2b | 629 | } |
d62a17ae | 630 | } |
631 | ||
632 | return 0; | |
718e3744 | 633 | } |
6b0655a2 | 634 | |
d62a17ae | 635 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 636 | { |
f4e14fdb | 637 | struct vrf *vrf; |
d62a17ae | 638 | struct listnode *cnode; |
639 | struct interface *ifp; | |
640 | struct connected *connected; | |
641 | struct prefix_ipv4 p; | |
642 | struct prefix *cp; | |
643 | ||
f4e14fdb RW |
644 | vrf = vrf_lookup_by_id(vrf_id); |
645 | if (!vrf) | |
646 | return NULL; | |
647 | ||
d62a17ae | 648 | p.family = AF_INET; |
649 | p.prefix = *addr; | |
650 | p.prefixlen = IPV4_MAX_BITLEN; | |
651 | ||
451fda4f | 652 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 653 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
654 | cp = connected->address; | |
655 | ||
656 | if (cp->family == AF_INET) | |
657 | if (prefix_match(cp, (struct prefix *)&p)) | |
658 | return ifp; | |
659 | } | |
718e3744 | 660 | } |
d62a17ae | 661 | return NULL; |
718e3744 | 662 | } |
663 | ||
d62a17ae | 664 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 665 | { |
f4e14fdb | 666 | struct vrf *vrf; |
d62a17ae | 667 | struct listnode *cnode; |
668 | struct interface *ifp; | |
669 | struct connected *connected; | |
670 | struct prefix *cp; | |
671 | ||
f4e14fdb RW |
672 | vrf = vrf_lookup_by_id(vrf_id); |
673 | if (!vrf) | |
674 | return NULL; | |
675 | ||
451fda4f | 676 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 677 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
678 | cp = connected->address; | |
679 | ||
680 | if (cp->family == AF_INET) | |
681 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
682 | return ifp; | |
683 | } | |
718e3744 | 684 | } |
d62a17ae | 685 | return NULL; |
718e3744 | 686 | } |
687 | ||
d62a17ae | 688 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
689 | vrf_id_t vrf_id) | |
718e3744 | 690 | { |
f4e14fdb | 691 | struct vrf *vrf; |
d62a17ae | 692 | struct listnode *cnode; |
693 | struct interface *ifp; | |
694 | struct connected *connected; | |
695 | struct prefix_ipv6 p; | |
696 | struct prefix *cp; | |
697 | ||
f4e14fdb RW |
698 | vrf = vrf_lookup_by_id(vrf_id); |
699 | if (!vrf) | |
700 | return NULL; | |
701 | ||
d62a17ae | 702 | p.family = AF_INET6; |
703 | p.prefix = *addr; | |
704 | p.prefixlen = IPV6_MAX_BITLEN; | |
705 | ||
451fda4f | 706 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 707 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
708 | cp = connected->address; | |
709 | ||
710 | if (cp->family == AF_INET6) | |
711 | if (prefix_match(cp, (struct prefix *)&p)) { | |
712 | if (IN6_IS_ADDR_LINKLOCAL( | |
713 | &cp->u.prefix6)) { | |
714 | if (ifindex == ifp->ifindex) | |
715 | return ifp; | |
716 | } else | |
717 | return ifp; | |
718 | } | |
719 | } | |
718e3744 | 720 | } |
d62a17ae | 721 | return NULL; |
718e3744 | 722 | } |
723 | ||
d62a17ae | 724 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
725 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 726 | { |
f4e14fdb | 727 | struct vrf *vrf; |
d62a17ae | 728 | struct listnode *cnode; |
729 | struct interface *ifp; | |
730 | struct connected *connected; | |
731 | struct prefix *cp; | |
732 | ||
f4e14fdb RW |
733 | vrf = vrf_lookup_by_id(vrf_id); |
734 | if (!vrf) | |
735 | return NULL; | |
736 | ||
451fda4f | 737 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 738 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
739 | cp = connected->address; | |
740 | ||
741 | if (cp->family == AF_INET6) | |
742 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
743 | if (IN6_IS_ADDR_LINKLOCAL( | |
744 | &cp->u.prefix6)) { | |
745 | if (ifindex == ifp->ifindex) | |
746 | return ifp; | |
747 | } else | |
748 | return ifp; | |
749 | } | |
750 | } | |
718e3744 | 751 | } |
d62a17ae | 752 | return NULL; |
718e3744 | 753 | } |
754 | ||
d62a17ae | 755 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 756 | { |
d62a17ae | 757 | struct listnode *cnode; |
758 | struct connected *connected; | |
759 | struct prefix *cp; | |
760 | ||
761 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
762 | cp = connected->address; | |
763 | ||
764 | if (cp->family == AF_INET6) | |
765 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
766 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
767 | return 1; | |
768 | } | |
769 | } | |
770 | return 0; | |
718e3744 | 771 | } |
772 | ||
dac42f2e | 773 | static bool if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 774 | { |
d62a17ae | 775 | struct listnode *cnode; |
776 | struct connected *connected; | |
777 | struct prefix *cp; | |
778 | ||
779 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
780 | cp = connected->address; | |
781 | ||
782 | if (cp->family == AF_INET6) | |
783 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
784 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
dac42f2e | 785 | return true; |
d62a17ae | 786 | } |
787 | } | |
dac42f2e | 788 | return false; |
718e3744 | 789 | } |
718e3744 | 790 | |
d62a17ae | 791 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 792 | { |
d62a17ae | 793 | struct listnode *cnode; |
794 | struct connected *connected; | |
795 | struct prefix *cp; | |
796 | ||
797 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
798 | cp = connected->address; | |
799 | if ((cp->family == AF_INET) | |
800 | && !ipv4_martian(&(cp->u.prefix4))) { | |
801 | *addr = cp->u.prefix4; | |
802 | return 1; | |
803 | } | |
804 | } | |
805 | return 0; | |
6ee06fa9 PM |
806 | } |
807 | ||
17cdd31e DS |
808 | |
809 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
810 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 811 | { |
d62a17ae | 812 | int ret = 0; |
813 | struct interface *ifp = NULL; | |
dac42f2e | 814 | bool v6_ll_avail = true; |
d62a17ae | 815 | |
816 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
817 | ||
818 | if (!local) | |
17cdd31e | 819 | return false; |
d62a17ae | 820 | if (!remote) |
17cdd31e | 821 | return false; |
d62a17ae | 822 | |
823 | if (local->sa.sa_family == AF_INET) { | |
824 | nexthop->v4 = local->sin.sin_addr; | |
825 | if (peer->update_if) | |
826 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 827 | peer->bgp->vrf_id); |
d62a17ae | 828 | else |
829 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
830 | peer->bgp->vrf_id); | |
718e3744 | 831 | } |
d62a17ae | 832 | if (local->sa.sa_family == AF_INET6) { |
8f2b2139 | 833 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN); |
d62a17ae | 834 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { |
835 | if (peer->conf_if || peer->ifname) | |
836 | ifp = if_lookup_by_name(peer->conf_if | |
837 | ? peer->conf_if | |
838 | : peer->ifname, | |
a36898e7 | 839 | peer->bgp->vrf_id); |
abe68054 PG |
840 | else if (peer->update_if) |
841 | ifp = if_lookup_by_name(peer->update_if, | |
842 | peer->bgp->vrf_id); | |
d62a17ae | 843 | } else if (peer->update_if) |
844 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 845 | peer->bgp->vrf_id); |
d62a17ae | 846 | else |
847 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
848 | local->sin6.sin6_scope_id, | |
849 | peer->bgp->vrf_id); | |
718e3744 | 850 | } |
d62a17ae | 851 | |
17cdd31e DS |
852 | if (!ifp) { |
853 | /* | |
854 | * BGP views do not currently get proper data | |
855 | * from zebra( when attached ) to be able to | |
856 | * properly resolve nexthops, so give this | |
857 | * instance type a pass. | |
858 | */ | |
859 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
860 | return true; | |
861 | /* | |
862 | * If we have no interface data but we have established | |
863 | * some connection w/ zebra than something has gone | |
864 | * terribly terribly wrong here, so say this failed | |
865 | * If we do not any zebra connection then not | |
866 | * having a ifp pointer is ok. | |
867 | */ | |
868 | return zclient_num_connects ? false : true; | |
869 | } | |
d62a17ae | 870 | |
871 | nexthop->ifp = ifp; | |
872 | ||
873 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
874 | if (local->sa.sa_family == AF_INET) { | |
875 | /* IPv6 nexthop*/ | |
876 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
877 | ||
878 | if (!ret) { | |
879 | /* There is no global nexthop. Use link-local address as | |
880 | * both the | |
881 | * global and link-local nexthop. In this scenario, the | |
882 | * expectation | |
883 | * for interop is that the network admin would use a | |
884 | * route-map to | |
885 | * specify the global IPv6 nexthop. | |
886 | */ | |
dac42f2e DS |
887 | v6_ll_avail = |
888 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
d62a17ae | 889 | memcpy(&nexthop->v6_local, &nexthop->v6_global, |
890 | IPV6_MAX_BYTELEN); | |
891 | } else | |
dac42f2e DS |
892 | v6_ll_avail = |
893 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
d62a17ae | 894 | |
dac42f2e DS |
895 | /* |
896 | * If we are a v4 connection and we are not doing unnumbered | |
897 | * not having a v6 LL address is ok | |
898 | */ | |
899 | if (!v6_ll_avail && !peer->conf_if) | |
900 | v6_ll_avail = true; | |
d62a17ae | 901 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) |
902 | peer->shared_network = 1; | |
903 | else | |
904 | peer->shared_network = 0; | |
718e3744 | 905 | } |
718e3744 | 906 | |
d62a17ae | 907 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
908 | if (local->sa.sa_family == AF_INET6) { | |
909 | struct interface *direct = NULL; | |
910 | ||
911 | /* IPv4 nexthop. */ | |
912 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
975a328e | 913 | if (!ret && peer->local_id.s_addr != INADDR_ANY) |
d62a17ae | 914 | nexthop->v4 = peer->local_id; |
915 | ||
916 | /* Global address*/ | |
917 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
918 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
919 | IPV6_MAX_BYTELEN); | |
920 | ||
382c3b08 | 921 | /* If directly connected set link-local address. */ |
d62a17ae | 922 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, |
923 | remote->sin6.sin6_scope_id, | |
924 | peer->bgp->vrf_id); | |
925 | if (direct) | |
dac42f2e DS |
926 | v6_ll_avail = if_get_ipv6_local( |
927 | ifp, &nexthop->v6_local); | |
2ebb354c IR |
928 | /* |
929 | * It's fine to not have a v6 LL when using | |
930 | * update-source loopback/vrf | |
931 | */ | |
608c8870 | 932 | if (!v6_ll_avail && if_is_loopback(ifp)) |
2ebb354c | 933 | v6_ll_avail = true; |
382c3b08 | 934 | else if (!v6_ll_avail) { |
75ba864c DS |
935 | flog_warn( |
936 | EC_BGP_NO_LL_ADDRESS_AVAILABLE, | |
937 | "Interface: %s does not have a v6 LL address associated with it, waiting until one is created for it", | |
938 | ifp->name); | |
939 | } | |
d62a17ae | 940 | } else |
941 | /* Link-local address. */ | |
942 | { | |
943 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
944 | ||
945 | /* If there is no global address. Set link-local | |
946 | address as | |
947 | global. I know this break RFC specification... */ | |
948 | /* In this scenario, the expectation for interop is that | |
949 | * the | |
950 | * network admin would use a route-map to specify the | |
951 | * global | |
952 | * IPv6 nexthop. | |
953 | */ | |
954 | if (!ret) | |
955 | memcpy(&nexthop->v6_global, | |
956 | &local->sin6.sin6_addr, | |
957 | IPV6_MAX_BYTELEN); | |
958 | /* Always set the link-local address */ | |
959 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
960 | IPV6_MAX_BYTELEN); | |
961 | } | |
962 | ||
963 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
964 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
965 | remote->sin6.sin6_scope_id, | |
966 | peer->bgp->vrf_id)) | |
967 | peer->shared_network = 1; | |
968 | else | |
969 | peer->shared_network = 0; | |
970 | } | |
718e3744 | 971 | |
d62a17ae | 972 | /* KAME stack specific treatment. */ |
718e3744 | 973 | #ifdef KAME |
d62a17ae | 974 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
975 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
976 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
977 | } | |
978 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
979 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
980 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
981 | } | |
718e3744 | 982 | #endif /* KAME */ |
e33a4880 | 983 | |
d62a17ae | 984 | /* If we have identified the local interface, there is no error for now. |
985 | */ | |
dac42f2e | 986 | return v6_ll_avail; |
718e3744 | 987 | } |
988 | ||
18ee8310 | 989 | static struct in6_addr * |
40381db7 | 990 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 991 | { |
d62a17ae | 992 | struct in6_addr *nexthop = NULL; |
993 | ||
994 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
995 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
996 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 997 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 998 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 999 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 1000 | } |
d62a17ae | 1001 | |
1002 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
1003 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
1004 | || path->attr->mp_nexthop_len | |
1005 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 1006 | /* Check if route-map is set to prefer global over link-local */ |
2bb8b49c | 1007 | if (path->attr->mp_nexthop_prefer_global) { |
40381db7 | 1008 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 1009 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1010 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 1011 | } else { |
d62a17ae | 1012 | /* Workaround for Cisco's nexthop bug. */ |
1013 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 | 1014 | &path->attr->mp_nexthop_global) |
ab0e0f73 | 1015 | && path->peer->su_remote |
40381db7 | 1016 | && path->peer->su_remote->sa.sa_family |
59a0f1cb | 1017 | == AF_INET6) { |
d62a17ae | 1018 | nexthop = |
40381db7 | 1019 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 1020 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1021 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 1022 | ->ifindex; |
77e62f2b | 1023 | } else { |
40381db7 | 1024 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 1025 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1026 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 1027 | } |
d62a17ae | 1028 | } |
1029 | } | |
1030 | ||
1031 | return nexthop; | |
73ac8160 DS |
1032 | } |
1033 | ||
b8685f9b | 1034 | static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p, |
3dc339cd | 1035 | struct bgp_path_info *path) |
73ac8160 | 1036 | { |
b4cb15c6 DL |
1037 | route_map_result_t ret; |
1038 | ||
1782514f | 1039 | ret = route_map_apply(map, p, path); |
40381db7 | 1040 | bgp_attr_flush(path->attr); |
b4cb15c6 DL |
1041 | |
1042 | if (ret != RMAP_DENYMATCH) | |
3dc339cd | 1043 | return true; |
d62a17ae | 1044 | |
1045 | if (bgp_debug_zebra(p)) { | |
1046 | if (p->family == AF_INET) { | |
d62a17ae | 1047 | zlog_debug( |
c0d72166 DS |
1048 | "Zebra rmap deny: IPv4 route %pFX nexthop %pI4", |
1049 | p, &path->attr->nexthop); | |
d62a17ae | 1050 | } |
1051 | if (p->family == AF_INET6) { | |
77e62f2b | 1052 | ifindex_t ifindex; |
1053 | struct in6_addr *nexthop; | |
1054 | ||
40381db7 | 1055 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 1056 | zlog_debug( |
7b6cee89 DS |
1057 | "Zebra rmap deny: IPv6 route %pFX nexthop %pI6", |
1058 | p, nexthop); | |
d62a17ae | 1059 | } |
1060 | } | |
3dc339cd | 1061 | return false; |
73ac8160 DS |
1062 | } |
1063 | ||
b98f7728 PG |
1064 | static struct thread *bgp_tm_thread_connect; |
1065 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
1066 | static bool bgp_tm_chunk_obtained; |
1067 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
1068 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 1069 | struct bgp *bgp_tm_bgp; |
b98f7728 | 1070 | |
cc9f21da | 1071 | static void bgp_zebra_tm_connect(struct thread *t) |
b98f7728 PG |
1072 | { |
1073 | struct zclient *zclient; | |
1074 | int delay = 10, ret = 0; | |
1075 | ||
1076 | zclient = THREAD_ARG(t); | |
1077 | if (bgp_tm_status_connected && zclient->sock > 0) | |
1078 | delay = 60; | |
1079 | else { | |
1080 | bgp_tm_status_connected = false; | |
1081 | ret = tm_table_manager_connect(zclient); | |
1082 | } | |
1083 | if (ret < 0) { | |
b7cd3069 | 1084 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
1085 | bgp_tm_status_connected = false; |
1086 | } else { | |
1087 | if (!bgp_tm_status_connected) | |
1088 | zlog_debug("Connecting to table manager. Success"); | |
1089 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
1090 | if (!bgp_tm_chunk_obtained) { |
1091 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
1092 | &bgp_tm_min, | |
6818e7e5 | 1093 | &bgp_tm_max) >= 0) { |
31c28cd7 | 1094 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1095 | /* parse non installed entries */ |
1096 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1097 | } | |
31c28cd7 | 1098 | } |
b98f7728 PG |
1099 | } |
1100 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1101 | &bgp_tm_thread_connect); | |
b98f7728 PG |
1102 | } |
1103 | ||
6818e7e5 PG |
1104 | bool bgp_zebra_tm_chunk_obtained(void) |
1105 | { | |
1106 | return bgp_tm_chunk_obtained; | |
1107 | } | |
1108 | ||
31c28cd7 PG |
1109 | uint32_t bgp_zebra_tm_get_id(void) |
1110 | { | |
1111 | static int table_id; | |
1112 | ||
1113 | if (!bgp_tm_chunk_obtained) | |
1114 | return ++table_id; | |
1115 | return bgp_tm_min++; | |
1116 | } | |
1117 | ||
6818e7e5 | 1118 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1119 | { |
1120 | int delay = 1; | |
1121 | ||
1122 | /* if already set, do nothing | |
1123 | */ | |
1124 | if (bgp_tm_thread_connect != NULL) | |
1125 | return; | |
1126 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1127 | bgp_tm_chunk_obtained = false; |
1128 | bgp_tm_min = bgp_tm_max = 0; | |
1129 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1130 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1131 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1132 | &bgp_tm_thread_connect); | |
1133 | } | |
1134 | ||
1135 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1136 | uint32_t *start, uint32_t *end) | |
1137 | { | |
1138 | int ret; | |
1139 | ||
1140 | if (!bgp_tm_status_connected) | |
1141 | return -1; | |
1142 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1143 | if (ret < 0) { | |
e50f7cfd | 1144 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1145 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1146 | return -1; |
1147 | } | |
1148 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1149 | chunk_size, *start, *end); | |
1150 | return 0; | |
1151 | } | |
1152 | ||
3dc339cd DA |
1153 | static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1154 | struct in_addr *nexthop, | |
1155 | struct attr *attr, bool is_evpn, | |
1156 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1157 | { |
1158 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1159 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1160 | |
1161 | /* Need to set fields appropriately for EVPN routes imported into | |
1162 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1163 | * connected routes leaked into a VRF. | |
1164 | */ | |
0789eb69 KM |
1165 | if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) { |
1166 | api_nh->type = attr->nh_type; | |
1167 | api_nh->bh_type = attr->bh_type; | |
1168 | } else if (is_evpn) { | |
a2299aba AD |
1169 | /* |
1170 | * If the nexthop is EVPN overlay index gateway IP, | |
1171 | * treat the nexthop as NEXTHOP_TYPE_IPV4 | |
1172 | * Else, mark the nexthop as onlink. | |
1173 | */ | |
1174 | if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP) | |
1175 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1176 | else { | |
1177 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
5609e70f | 1178 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
a2299aba AD |
1179 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
1180 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; | |
1181 | } | |
0789eb69 | 1182 | } else if (nh_othervrf && api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
77e62f2b | 1183 | api_nh->type = NEXTHOP_TYPE_IFINDEX; |
1184 | api_nh->ifindex = attr->nh_ifindex; | |
1185 | } else | |
1186 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1187 | ||
3dc339cd | 1188 | return true; |
77e62f2b | 1189 | } |
1190 | ||
3dc339cd DA |
1191 | static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1192 | struct in6_addr *nexthop, | |
1193 | ifindex_t ifindex, | |
1194 | struct bgp_path_info *pi, | |
1195 | struct bgp_path_info *best_pi, | |
1196 | bool is_evpn, | |
1197 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1198 | { |
1199 | struct attr *attr; | |
1200 | ||
40381db7 | 1201 | attr = pi->attr; |
e1e71450 | 1202 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1203 | |
0789eb69 KM |
1204 | if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) { |
1205 | api_nh->type = attr->nh_type; | |
1206 | api_nh->bh_type = attr->bh_type; | |
1207 | } else if (is_evpn) { | |
a2299aba AD |
1208 | /* |
1209 | * If the nexthop is EVPN overlay index gateway IP, | |
1210 | * treat the nexthop as NEXTHOP_TYPE_IPV4 | |
1211 | * Else, mark the nexthop as onlink. | |
1212 | */ | |
1213 | if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP) | |
1214 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1215 | else { | |
1216 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
5609e70f | 1217 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
a2299aba AD |
1218 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
1219 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; | |
1220 | } | |
e1e71450 | 1221 | } else if (nh_othervrf) { |
77e62f2b | 1222 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1223 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1224 | api_nh->ifindex = attr->nh_ifindex; | |
1225 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1226 | if (ifindex == 0) | |
3dc339cd | 1227 | return false; |
77e62f2b | 1228 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1229 | api_nh->ifindex = ifindex; | |
1230 | } else { | |
1231 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1232 | api_nh->ifindex = 0; | |
1233 | } | |
1234 | } else { | |
1235 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1236 | if (pi == best_pi |
1237 | && attr->mp_nexthop_len | |
1238 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1239 | if (pi->peer->nexthop.ifp) | |
1240 | ifindex = | |
1241 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1242 | if (!ifindex) { |
40381db7 DS |
1243 | if (pi->peer->conf_if) |
1244 | ifindex = pi->peer->ifp->ifindex; | |
1245 | else if (pi->peer->ifname) | |
77e62f2b | 1246 | ifindex = ifname2ifindex( |
40381db7 DS |
1247 | pi->peer->ifname, |
1248 | pi->peer->bgp->vrf_id); | |
1249 | else if (pi->peer->nexthop.ifp) | |
1250 | ifindex = | |
1251 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1252 | } |
1253 | ||
1254 | if (ifindex == 0) | |
3dc339cd | 1255 | return false; |
77e62f2b | 1256 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1257 | api_nh->ifindex = ifindex; | |
1258 | } else { | |
1259 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1260 | api_nh->ifindex = 0; | |
1261 | } | |
1262 | } | |
0789eb69 KM |
1263 | /* api_nh structure has union of gate and bh_type */ |
1264 | if (nexthop && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) | |
c2ca3e25 | 1265 | api_nh->gate.ipv6 = *nexthop; |
77e62f2b | 1266 | |
3dc339cd | 1267 | return true; |
77e62f2b | 1268 | } |
1269 | ||
f7e1c681 | 1270 | static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr, |
1271 | uint64_t tot_bw, uint32_t *nh_weight) | |
4e30bc2b | 1272 | { |
f7e1c681 | 1273 | uint32_t bw; |
1274 | uint64_t tmp; | |
1275 | ||
1276 | bw = attr->link_bw; | |
1277 | /* zero link-bandwidth and link-bandwidth not present are treated | |
1278 | * as the same situation. | |
1279 | */ | |
1280 | if (!bw) { | |
1281 | /* the only situations should be if we're either told | |
1282 | * to skip or use default weight. | |
1283 | */ | |
1284 | if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING) | |
1285 | return false; | |
1286 | *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT; | |
1287 | } else { | |
1288 | tmp = (uint64_t)bw * 100; | |
1289 | *nh_weight = ((uint32_t)(tmp / tot_bw)); | |
1290 | } | |
1291 | ||
1292 | return true; | |
4e30bc2b | 1293 | } |
1294 | ||
9bcb3eef | 1295 | void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p, |
4b7e6066 | 1296 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1297 | safi_t safi) |
718e3744 | 1298 | { |
7cc27d41 | 1299 | struct zapi_route api = { 0 }; |
9913029c | 1300 | struct zapi_nexthop *api_nh; |
2ad4f093 | 1301 | int nh_family; |
a74e593b | 1302 | unsigned int valid_nh_count = 0; |
1a9cb083 | 1303 | bool allow_recursion = false; |
d7c0a89a | 1304 | uint8_t distance; |
d62a17ae | 1305 | struct peer *peer; |
4b7e6066 | 1306 | struct bgp_path_info *mpinfo; |
ad1844f7 | 1307 | struct bgp *bgp_orig; |
d7c0a89a | 1308 | uint32_t metric; |
b4cb15c6 | 1309 | struct attr local_attr; |
4b7e6066 DS |
1310 | struct bgp_path_info local_info; |
1311 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1312 | route_tag_t tag; |
ea7cd161 | 1313 | struct bgp_sid_info *sid_info; |
31e1a103 SW |
1314 | mpls_label_t *labels; |
1315 | uint32_t num_labels = 0; | |
1316 | mpls_label_t nh_label; | |
ddb5b488 | 1317 | int nh_othervrf = 0; |
06f16b2c | 1318 | bool nh_updated = false; |
4e30bc2b | 1319 | bool do_wt_ecmp; |
1320 | uint64_t cum_bw = 0; | |
6348981a AK |
1321 | uint32_t nhg_id = 0; |
1322 | bool is_add; | |
67f67ba4 DA |
1323 | uint32_t ttl = 0; |
1324 | uint32_t bos = 0; | |
1325 | uint32_t exp = 0; | |
d62a17ae | 1326 | |
1327 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1328 | * know of this instance. | |
1329 | */ | |
1330 | if (!bgp_install_info_to_zebra(bgp)) | |
1331 | return; | |
1332 | ||
d62a17ae | 1333 | if (bgp->main_zebra_update_hold) |
1334 | return; | |
1335 | ||
d90b788e | 1336 | if (safi == SAFI_FLOWSPEC) { |
9bcb3eef DS |
1337 | bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi, |
1338 | safi, true); | |
d90b788e A |
1339 | return; |
1340 | } | |
529efa23 | 1341 | |
ddb5b488 PZ |
1342 | /* |
1343 | * vrf leaking support (will have only one nexthop) | |
1344 | */ | |
1345 | if (info->extra && info->extra->bgp_orig) | |
1346 | nh_othervrf = 1; | |
1347 | ||
9913029c | 1348 | /* Make Zebra API structure. */ |
9913029c RW |
1349 | api.vrf_id = bgp->vrf_id; |
1350 | api.type = ZEBRA_ROUTE_BGP; | |
1351 | api.safi = safi; | |
1352 | api.prefix = *p; | |
1353 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1354 | ||
d62a17ae | 1355 | peer = info->peer; |
1356 | ||
2bb8b49c DS |
1357 | if (info->type == ZEBRA_ROUTE_BGP |
1358 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1359 | ||
1360 | /* Obtain peer from parent */ | |
1361 | if (info->extra && info->extra->parent) | |
1362 | peer = ((struct bgp_path_info *)(info->extra->parent)) | |
1363 | ->peer; | |
ddb5b488 PZ |
1364 | } |
1365 | ||
d62a17ae | 1366 | tag = info->attr->tag; |
1367 | ||
d62a17ae | 1368 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1369 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1370 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1371 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1372 | } |
a39275d7 | 1373 | |
c8d6f0d6 | 1374 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL) |
d62a17ae | 1375 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) |
892fedb6 | 1376 | || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) |
d62a17ae | 1377 | |
1a9cb083 | 1378 | allow_recursion = true; |
d62a17ae | 1379 | |
951745bd PG |
1380 | if (info->attr->rmap_table_id) { |
1381 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1382 | api.tableid = info->attr->rmap_table_id; | |
1383 | } | |
1384 | ||
ef3e0d04 SM |
1385 | if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) |
1386 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
1387 | ||
2ad4f093 RW |
1388 | /* Metric is currently based on the best-path only */ |
1389 | metric = info->attr->med; | |
4e30bc2b | 1390 | |
1391 | /* Determine if we're doing weighted ECMP or not */ | |
f7e1c681 | 1392 | do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info); |
4e30bc2b | 1393 | if (do_wt_ecmp) |
1394 | cum_bw = bgp_path_info_mpath_cumbw(info); | |
1395 | ||
6348981a | 1396 | /* EVPN MAC-IP routes are installed with a L3 NHG id */ |
8bcb09a1 | 1397 | if (bgp_evpn_path_es_use_nhg(bgp, info, &nhg_id)) { |
6348981a | 1398 | mpinfo = NULL; |
8bcb09a1 AK |
1399 | api.nhgid = nhg_id; |
1400 | if (nhg_id) | |
1401 | SET_FLAG(api.message, ZAPI_MESSAGE_NHG); | |
1402 | } else { | |
6348981a | 1403 | mpinfo = info; |
8bcb09a1 | 1404 | } |
6348981a AK |
1405 | |
1406 | for (; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { | |
f7e1c681 | 1407 | uint32_t nh_weight; |
5609e70f | 1408 | bool is_evpn; |
31e1a103 | 1409 | bool is_parent_evpn; |
f7e1c681 | 1410 | |
a74e593b RW |
1411 | if (valid_nh_count >= multipath_num) |
1412 | break; | |
1413 | ||
b4cb15c6 | 1414 | *mpinfo_cp = *mpinfo; |
f7e1c681 | 1415 | nh_weight = 0; |
b4cb15c6 | 1416 | |
d0d695f4 | 1417 | /* Get nexthop address-family */ |
7226bc40 TA |
1418 | if (p->family == AF_INET && |
1419 | !BGP_ATTR_MP_NEXTHOP_LEN_IP6(mpinfo_cp->attr)) | |
d0d695f4 | 1420 | nh_family = AF_INET; |
7226bc40 TA |
1421 | else if (p->family == AF_INET6 || |
1422 | (p->family == AF_INET && | |
1423 | BGP_ATTR_MP_NEXTHOP_LEN_IP6(mpinfo_cp->attr))) | |
d0d695f4 RW |
1424 | nh_family = AF_INET6; |
1425 | else | |
1426 | continue; | |
1427 | ||
f7e1c681 | 1428 | /* If processing for weighted ECMP, determine the next hop's |
1429 | * weight. Based on user setting, we may skip the next hop | |
1430 | * in some situations. | |
1431 | */ | |
1432 | if (do_wt_ecmp) { | |
1433 | if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr, | |
1434 | cum_bw, &nh_weight)) | |
1435 | continue; | |
1436 | } | |
1374aec9 | 1437 | api_nh = &api.nexthops[valid_nh_count]; |
ef3e0d04 SM |
1438 | |
1439 | if (CHECK_FLAG(info->attr->flag, | |
1440 | ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) | |
1441 | api_nh->srte_color = info->attr->srte_color; | |
1442 | ||
257b7b6e DS |
1443 | if (bgp_debug_zebra(&api.prefix)) { |
1444 | if (mpinfo->extra) { | |
70492dea DS |
1445 | zlog_debug("%s: p=%pFX, bgp_is_valid_label: %d", |
1446 | __func__, p, | |
257b7b6e DS |
1447 | bgp_is_valid_label( |
1448 | &mpinfo->extra->label[0])); | |
1449 | } else { | |
70492dea DS |
1450 | zlog_debug( |
1451 | "%s: p=%pFX, extra is NULL, no label", | |
1452 | __func__, p); | |
ddb5b488 | 1453 | } |
257b7b6e | 1454 | } |
ddb5b488 | 1455 | |
257b7b6e DS |
1456 | if (bgp->table_map[afi][safi].name) { |
1457 | /* Copy info and attributes, so the route-map | |
1458 | apply doesn't modify the BGP route info. */ | |
1459 | local_attr = *mpinfo->attr; | |
1460 | mpinfo_cp->attr = &local_attr; | |
1461 | if (!bgp_table_map_apply(bgp->table_map[afi][safi].map, | |
1462 | p, mpinfo_cp)) | |
1463 | continue; | |
b4cb15c6 | 1464 | |
257b7b6e DS |
1465 | /* metric/tag is only allowed to be |
1466 | * overridden on 1st nexthop */ | |
1467 | if (mpinfo == info) { | |
1468 | metric = mpinfo_cp->attr->med; | |
1469 | tag = mpinfo_cp->attr->tag; | |
b4cb15c6 | 1470 | } |
257b7b6e | 1471 | } |
d62a17ae | 1472 | |
ad1844f7 IS |
1473 | BGP_ORIGINAL_UPDATE(bgp_orig, mpinfo, bgp); |
1474 | ||
31e1a103 | 1475 | is_parent_evpn = is_route_parent_evpn(mpinfo); |
5609e70f | 1476 | |
31e1a103 | 1477 | if (nh_family == AF_INET) { |
77e62f2b | 1478 | nh_updated = update_ipv4nh_for_route_install( |
ad1844f7 IS |
1479 | nh_othervrf, bgp_orig, |
1480 | &mpinfo_cp->attr->nexthop, mpinfo_cp->attr, | |
31e1a103 | 1481 | is_parent_evpn, api_nh); |
2ad4f093 | 1482 | } else { |
f220da99 | 1483 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1484 | struct in6_addr *nexthop; |
9913029c | 1485 | |
18ee8310 DS |
1486 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1487 | &ifindex); | |
00c10664 DA |
1488 | |
1489 | if (!nexthop) | |
1490 | nh_updated = update_ipv4nh_for_route_install( | |
ad1844f7 | 1491 | nh_othervrf, bgp_orig, |
00c10664 | 1492 | &mpinfo_cp->attr->nexthop, |
31e1a103 SW |
1493 | mpinfo_cp->attr, is_parent_evpn, |
1494 | api_nh); | |
00c10664 DA |
1495 | else |
1496 | nh_updated = update_ipv6nh_for_route_install( | |
ad1844f7 | 1497 | nh_othervrf, bgp_orig, nexthop, ifindex, |
31e1a103 | 1498 | mpinfo, info, is_parent_evpn, api_nh); |
2ad4f093 | 1499 | } |
d62a17ae | 1500 | |
31e1a103 SW |
1501 | is_evpn = !!CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
1502 | ||
77e62f2b | 1503 | /* Did we get proper nexthop info to update zebra? */ |
1504 | if (!nh_updated) | |
1505 | continue; | |
1506 | ||
1a9cb083 JM |
1507 | /* Allow recursion if it is a multipath group with both |
1508 | * eBGP and iBGP paths. | |
1509 | */ | |
1510 | if (!allow_recursion | |
1511 | && CHECK_FLAG(bgp->flags, BGP_FLAG_PEERTYPE_MULTIPATH_RELAX) | |
1512 | && (mpinfo->peer->sort == BGP_PEER_IBGP | |
1513 | || mpinfo->peer->sort == BGP_PEER_CONFED)) | |
1514 | allow_recursion = true; | |
1515 | ||
31e1a103 SW |
1516 | if (mpinfo->extra) { |
1517 | labels = mpinfo->extra->label; | |
1518 | num_labels = mpinfo->extra->num_labels; | |
1519 | } | |
9913029c | 1520 | |
31e1a103 SW |
1521 | if (labels && (num_labels > 0) && |
1522 | (is_evpn || bgp_is_valid_label(&labels[0]))) { | |
1523 | enum lsp_types_t nh_label_type = ZEBRA_LSP_NONE; | |
68a02e06 | 1524 | |
31e1a103 SW |
1525 | if (is_evpn) { |
1526 | /* | |
1527 | * L3VNI is always last label. Type5 will only | |
1528 | * have one label, Type2 will have two. | |
1529 | */ | |
1530 | nh_label = labels[num_labels - 1]; | |
1531 | nh_label_type = ZEBRA_LSP_EVPN; | |
1532 | ||
1533 | } else if (bgp_is_valid_label(&labels[0])) { | |
1534 | mpls_lse_decode(labels[0], &nh_label, &ttl, | |
1535 | &exp, &bos); | |
1536 | } | |
1537 | ||
1538 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); | |
2ad4f093 | 1539 | api_nh->label_num = 1; |
31e1a103 SW |
1540 | api_nh->label_type = nh_label_type; |
1541 | api_nh->labels[0] = nh_label; | |
d62a17ae | 1542 | } |
a2299aba AD |
1543 | |
1544 | if (is_evpn | |
1545 | && mpinfo->attr->evpn_overlay.type | |
1546 | != OVERLAY_INDEX_GATEWAY_IP) | |
1547 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), | |
1548 | sizeof(struct ethaddr)); | |
1549 | ||
f7e1c681 | 1550 | api_nh->weight = nh_weight; |
4e30bc2b | 1551 | |
31e1a103 SW |
1552 | if (mpinfo->extra && !is_evpn && |
1553 | bgp_is_valid_label(&labels[0]) && | |
1554 | !sid_zero(&mpinfo->extra->sid[0].sid)) { | |
ea7cd161 RS |
1555 | sid_info = &mpinfo->extra->sid[0]; |
1556 | ||
1557 | memcpy(&api_nh->seg6_segs, &sid_info->sid, | |
53a4de82 | 1558 | sizeof(api_nh->seg6_segs)); |
09e06fcf | 1559 | |
ea7cd161 | 1560 | if (sid_info->transposition_len != 0) { |
31e1a103 SW |
1561 | mpls_lse_decode(labels[0], &nh_label, &ttl, |
1562 | &exp, &bos); | |
db656439 | 1563 | |
31e1a103 | 1564 | if (nh_label < MPLS_LABEL_UNRESERVED_MIN) { |
db656439 RS |
1565 | if (bgp_debug_zebra(&api.prefix)) |
1566 | zlog_debug( | |
1567 | "skip invalid SRv6 routes: transposition scheme is used, but label is too small"); | |
1568 | continue; | |
1569 | } | |
1570 | ||
31e1a103 | 1571 | transpose_sid(&api_nh->seg6_segs, nh_label, |
ea7cd161 RS |
1572 | sid_info->transposition_offset, |
1573 | sid_info->transposition_len); | |
1574 | } | |
1575 | ||
09e06fcf | 1576 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6); |
53a4de82 HS |
1577 | } |
1578 | ||
2ad4f093 RW |
1579 | valid_nh_count++; |
1580 | } | |
d62a17ae | 1581 | |
6348981a AK |
1582 | is_add = (valid_nh_count || nhg_id) ? true : false; |
1583 | ||
ec0acb80 | 1584 | if (is_add && CHECK_FLAG(bm->flags, BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA)) { |
94effaf0 | 1585 | struct bgp_zebra_opaque bzo = {}; |
1d7260a1 DA |
1586 | const char *reason = |
1587 | bgp_path_selection_reason2str(dest->reason); | |
94effaf0 DA |
1588 | |
1589 | strlcpy(bzo.aspath, info->attr->aspath->str, | |
1590 | sizeof(bzo.aspath)); | |
1591 | ||
1592 | if (info->attr->flag & ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES)) | |
9a706b42 DA |
1593 | strlcpy(bzo.community, |
1594 | bgp_attr_get_community(info->attr)->str, | |
94effaf0 DA |
1595 | sizeof(bzo.community)); |
1596 | ||
1597 | if (info->attr->flag | |
1598 | & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES)) | |
1bcf3a96 DA |
1599 | strlcpy(bzo.lcommunity, |
1600 | bgp_attr_get_lcommunity(info->attr)->str, | |
94effaf0 | 1601 | sizeof(bzo.lcommunity)); |
e46723a5 | 1602 | |
1d7260a1 DA |
1603 | strlcpy(bzo.selection_reason, reason, |
1604 | sizeof(bzo.selection_reason)); | |
1605 | ||
e46723a5 | 1606 | SET_FLAG(api.message, ZAPI_MESSAGE_OPAQUE); |
94effaf0 DA |
1607 | api.opaque.length = MIN(sizeof(struct bgp_zebra_opaque), |
1608 | ZAPI_MESSAGE_OPAQUE_LENGTH); | |
1609 | memcpy(api.opaque.data, &bzo, api.opaque.length); | |
e46723a5 DS |
1610 | } |
1611 | ||
1a9cb083 JM |
1612 | if (allow_recursion) |
1613 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); | |
1614 | ||
5cc347c4 DS |
1615 | /* |
1616 | * When we create an aggregate route we must also | |
1617 | * install a Null0 route in the RIB, so overwrite | |
1618 | * what was written into api with a blackhole route | |
1619 | */ | |
1620 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1621 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1622 | else | |
2ad4f093 | 1623 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1624 | |
2ad4f093 RW |
1625 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1626 | api.metric = metric; | |
d62a17ae | 1627 | |
2ad4f093 RW |
1628 | if (tag) { |
1629 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1630 | api.tag = tag; | |
1631 | } | |
d62a17ae | 1632 | |
2ad4f093 RW |
1633 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1634 | if (distance) { | |
1635 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1636 | api.distance = distance; | |
1637 | } | |
d62a17ae | 1638 | |
2ad4f093 | 1639 | if (bgp_debug_zebra(p)) { |
2ad4f093 | 1640 | char nh_buf[INET6_ADDRSTRLEN]; |
d8744f72 CS |
1641 | char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'}; |
1642 | char buf1[ETHER_ADDR_STRLEN]; | |
2ad4f093 | 1643 | char label_buf[20]; |
53a4de82 HS |
1644 | char sid_buf[20]; |
1645 | char segs_buf[256]; | |
2ad4f093 RW |
1646 | int i; |
1647 | ||
2dbe669b DA |
1648 | zlog_debug( |
1649 | "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI | |
6348981a | 1650 | " count %d nhg %d", |
4d67f4fc | 1651 | is_add ? "add" : "delete", bgp->vrf_id, &api.prefix, |
1652 | api.metric, api.tag, api.nexthop_num, nhg_id); | |
2ad4f093 RW |
1653 | for (i = 0; i < api.nexthop_num; i++) { |
1654 | api_nh = &api.nexthops[i]; | |
1655 | ||
1ee069db CS |
1656 | switch (api_nh->type) { |
1657 | case NEXTHOP_TYPE_IFINDEX: | |
77e62f2b | 1658 | nh_buf[0] = '\0'; |
1ee069db CS |
1659 | break; |
1660 | case NEXTHOP_TYPE_IPV4: | |
1661 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1662 | nh_family = AF_INET; | |
77e62f2b | 1663 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1664 | sizeof(nh_buf)); | |
1ee069db CS |
1665 | break; |
1666 | case NEXTHOP_TYPE_IPV6: | |
1667 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1668 | nh_family = AF_INET6; | |
1669 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1670 | sizeof(nh_buf)); | |
1671 | break; | |
1672 | case NEXTHOP_TYPE_BLACKHOLE: | |
1673 | strlcpy(nh_buf, "blackhole", sizeof(nh_buf)); | |
1674 | break; | |
1675 | default: | |
1676 | /* Note: add new nexthop case */ | |
1677 | assert(0); | |
1678 | break; | |
77e62f2b | 1679 | } |
2ad4f093 RW |
1680 | |
1681 | label_buf[0] = '\0'; | |
d8744f72 | 1682 | eth_buf[0] = '\0'; |
bbf32574 | 1683 | segs_buf[0] = '\0'; |
5609e70f XL |
1684 | if (CHECK_FLAG(api_nh->flags, |
1685 | ZAPI_NEXTHOP_FLAG_LABEL) && | |
1686 | !CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN)) | |
a7799788 CS |
1687 | snprintf(label_buf, sizeof(label_buf), |
1688 | "label %u", api_nh->labels[0]); | |
5609e70f XL |
1689 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6) && |
1690 | !CHECK_FLAG(api_nh->flags, | |
1691 | ZAPI_NEXTHOP_FLAG_EVPN)) { | |
53a4de82 HS |
1692 | inet_ntop(AF_INET6, &api_nh->seg6_segs, |
1693 | sid_buf, sizeof(sid_buf)); | |
1694 | snprintf(segs_buf, sizeof(segs_buf), "segs %s", | |
1695 | sid_buf); | |
1696 | } | |
5609e70f XL |
1697 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN) && |
1698 | !is_zero_mac(&api_nh->rmac)) | |
a7799788 CS |
1699 | snprintf(eth_buf, sizeof(eth_buf), " RMAC %s", |
1700 | prefix_mac2str(&api_nh->rmac, | |
1701 | buf1, sizeof(buf1))); | |
53a4de82 | 1702 | zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s %s", |
77e62f2b | 1703 | i + 1, nh_buf, api_nh->ifindex, |
4e30bc2b | 1704 | api_nh->vrf_id, api_nh->weight, |
53a4de82 | 1705 | label_buf, segs_buf, eth_buf); |
d62a17ae | 1706 | } |
2ad4f093 | 1707 | |
960035b2 PZ |
1708 | int recursion_flag = 0; |
1709 | ||
1710 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1711 | recursion_flag = 1; | |
1712 | ||
70492dea DS |
1713 | zlog_debug("%s: %pFX: announcing to zebra (recursion %sset)", |
1714 | __func__, p, (recursion_flag ? "" : "NOT ")); | |
960035b2 | 1715 | } |
6348981a | 1716 | zclient_route_send(is_add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, |
2ad4f093 | 1717 | zclient, &api); |
718e3744 | 1718 | } |
1719 | ||
73ac8160 | 1720 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1721 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1722 | { |
9bcb3eef | 1723 | struct bgp_dest *dest; |
d62a17ae | 1724 | struct bgp_table *table; |
40381db7 | 1725 | struct bgp_path_info *pi; |
d62a17ae | 1726 | |
1727 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1728 | * know of this instance. | |
1729 | */ | |
1730 | if (!bgp_install_info_to_zebra(bgp)) | |
1731 | return; | |
1732 | ||
1733 | table = bgp->rib[afi][safi]; | |
1734 | if (!table) | |
1735 | return; | |
1736 | ||
9bcb3eef DS |
1737 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) |
1738 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
40381db7 | 1739 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1740 | |
40381db7 DS |
1741 | (pi->type == ZEBRA_ROUTE_BGP |
1742 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1743 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1744 | |
9bcb3eef DS |
1745 | bgp_zebra_announce(dest, |
1746 | bgp_dest_get_prefix(dest), | |
b54892e0 | 1747 | pi, bgp, afi, safi); |
73ac8160 DS |
1748 | } |
1749 | ||
c163f297 DS |
1750 | /* Announce routes of any bgp subtype of a table to zebra */ |
1751 | void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi, | |
1752 | safi_t safi) | |
1753 | { | |
1754 | struct bgp_dest *dest; | |
1755 | struct bgp_table *table; | |
1756 | struct bgp_path_info *pi; | |
1757 | ||
1758 | if (!bgp_install_info_to_zebra(bgp)) | |
1759 | return; | |
1760 | ||
1761 | table = bgp->rib[afi][safi]; | |
1762 | if (!table) | |
1763 | return; | |
1764 | ||
1765 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) | |
1766 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
1767 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && | |
1768 | pi->type == ZEBRA_ROUTE_BGP) | |
1769 | bgp_zebra_announce(dest, | |
1770 | bgp_dest_get_prefix(dest), | |
1771 | pi, bgp, afi, safi); | |
1772 | } | |
1773 | ||
5a1ae2c2 | 1774 | void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1775 | struct bgp *bgp, safi_t safi) |
718e3744 | 1776 | { |
2ad4f093 | 1777 | struct zapi_route api; |
f7df1907 | 1778 | struct peer *peer; |
ddb5b488 | 1779 | |
d62a17ae | 1780 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1781 | * know of this instance. | |
1782 | */ | |
568e10ca | 1783 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1784 | return; |
1785 | ||
f7df1907 PG |
1786 | if (safi == SAFI_FLOWSPEC) { |
1787 | peer = info->peer; | |
d90b788e A |
1788 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1789 | return; | |
f7df1907 | 1790 | } |
529efa23 | 1791 | |
2ad4f093 | 1792 | memset(&api, 0, sizeof(api)); |
568e10ca | 1793 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1794 | api.type = ZEBRA_ROUTE_BGP; |
1795 | api.safi = safi; | |
1796 | api.prefix = *p; | |
d62a17ae | 1797 | |
1276ce38 PG |
1798 | if (info->attr->rmap_table_id) { |
1799 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1800 | api.tableid = info->attr->rmap_table_id; | |
1801 | } | |
1802 | ||
2dbe669b DA |
1803 | if (bgp_debug_zebra(p)) |
1804 | zlog_debug("Tx route delete VRF %u %pFX", bgp->vrf_id, | |
1805 | &api.prefix); | |
d62a17ae | 1806 | |
2ad4f093 | 1807 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1808 | } |
56c1f7d8 | 1809 | |
c163f297 DS |
1810 | /* Withdraw all entries in a BGP instances RIB table from Zebra */ |
1811 | void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi) | |
1812 | { | |
1813 | struct bgp_dest *dest; | |
1814 | struct bgp_table *table; | |
1815 | struct bgp_path_info *pi; | |
1816 | ||
1817 | if (!bgp_install_info_to_zebra(bgp)) | |
1818 | return; | |
1819 | ||
1820 | table = bgp->rib[afi][safi]; | |
1821 | if (!table) | |
1822 | return; | |
1823 | ||
1824 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) { | |
1825 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
1826 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) | |
1827 | && (pi->type == ZEBRA_ROUTE_BGP)) | |
1828 | bgp_zebra_withdraw(bgp_dest_get_prefix(dest), | |
1829 | pi, bgp, safi); | |
1830 | } | |
1831 | } | |
1832 | } | |
1833 | ||
d7c0a89a QY |
1834 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1835 | unsigned short instance) | |
7c8ff89e | 1836 | { |
d62a17ae | 1837 | struct list *red_list; |
1838 | struct listnode *node; | |
1839 | struct bgp_redist *red; | |
7c8ff89e | 1840 | |
d62a17ae | 1841 | red_list = bgp->redist[afi][type]; |
1842 | if (!red_list) | |
1843 | return (NULL); | |
7c8ff89e | 1844 | |
d62a17ae | 1845 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1846 | if (red->instance == instance) | |
1847 | return red; | |
7c8ff89e | 1848 | |
d62a17ae | 1849 | return NULL; |
7c8ff89e DS |
1850 | } |
1851 | ||
d7c0a89a QY |
1852 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1853 | unsigned short instance) | |
7c8ff89e | 1854 | { |
d62a17ae | 1855 | struct list *red_list; |
1856 | struct bgp_redist *red; | |
7c8ff89e | 1857 | |
d62a17ae | 1858 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1859 | if (red) | |
1860 | return red; | |
7c8ff89e | 1861 | |
d62a17ae | 1862 | if (!bgp->redist[afi][type]) |
1863 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1864 | |
d62a17ae | 1865 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1866 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1867 | red->instance = instance; |
7c8ff89e | 1868 | |
d62a17ae | 1869 | listnode_add(red_list, red); |
7c8ff89e | 1870 | |
d62a17ae | 1871 | return red; |
7c8ff89e DS |
1872 | } |
1873 | ||
d7c0a89a QY |
1874 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1875 | unsigned short instance) | |
7c8ff89e | 1876 | { |
d62a17ae | 1877 | struct bgp_redist *red; |
1878 | ||
1879 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1880 | ||
1881 | if (red) { | |
1882 | listnode_delete(bgp->redist[afi][type], red); | |
1883 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1884 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1885 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1886 | } |
7c8ff89e | 1887 | } |
6b0655a2 | 1888 | |
718e3744 | 1889 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1890 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1891 | unsigned short instance, bool changed) |
718e3744 | 1892 | { |
e923dd62 | 1893 | /* If redistribute options are changed call |
1894 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1895 | * the routes | |
1896 | */ | |
1897 | if (changed) | |
1898 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1899 | |
d62a17ae | 1900 | /* Return if already redistribute flag is set. */ |
1901 | if (instance) { | |
1902 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1903 | instance)) | |
1904 | return CMD_WARNING; | |
718e3744 | 1905 | |
d62a17ae | 1906 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1907 | } else { | |
d9083050 IR |
1908 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) |
1909 | return CMD_WARNING; | |
1910 | ||
49e5a4a0 | 1911 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1912 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1913 | vnc_export_bgp_enable( |
1914 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1915 | } | |
65efcfce LB |
1916 | #endif |
1917 | ||
d62a17ae | 1918 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1919 | } | |
718e3744 | 1920 | |
ea12cf11 DS |
1921 | /* |
1922 | * Don't try to register if we're not connected to Zebra or Zebra | |
1923 | * doesn't know of this instance. | |
1924 | * | |
1925 | * When we come up later well resend if needed. | |
d62a17ae | 1926 | */ |
1927 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1928 | return CMD_SUCCESS; |
a39275d7 | 1929 | |
d62a17ae | 1930 | if (BGP_DEBUG(zebra, ZEBRA)) |
1931 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1932 | bgp->vrf_id, afi, zebra_route_string(type), | |
1933 | instance); | |
518f0eb1 | 1934 | |
d62a17ae | 1935 | /* Send distribute add message to zebra. */ |
1936 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1937 | instance, bgp->vrf_id); | |
718e3744 | 1938 | |
d62a17ae | 1939 | return CMD_SUCCESS; |
718e3744 | 1940 | } |
1941 | ||
d62a17ae | 1942 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1943 | unsigned short instance) |
518f0eb1 | 1944 | { |
d62a17ae | 1945 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1946 | * know of this instance. | |
1947 | */ | |
1948 | if (!bgp_install_info_to_zebra(bgp)) | |
1949 | return -1; | |
1950 | ||
1951 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1952 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1953 | bgp->vrf_id, afi, zebra_route_string(type), | |
1954 | instance); | |
1955 | ||
1956 | /* Send distribute add message to zebra. */ | |
1957 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1958 | instance, bgp->vrf_id); | |
1959 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1960 | instance, bgp->vrf_id); | |
1961 | ||
1962 | return 0; | |
518f0eb1 DS |
1963 | } |
1964 | ||
718e3744 | 1965 | /* Redistribute with route-map specification. */ |
3dc339cd DA |
1966 | bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1967 | struct route_map *route_map) | |
718e3744 | 1968 | { |
d62a17ae | 1969 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
3dc339cd | 1970 | return false; |
718e3744 | 1971 | |
0a22ddfb | 1972 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1973 | /* Decrement the count for existing routemap and |
1974 | * increment the count for new route map. | |
1975 | */ | |
1976 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1977 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1978 | red->rmap.map = route_map; |
b4897fa5 | 1979 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1980 | |
3dc339cd | 1981 | return true; |
718e3744 | 1982 | } |
1983 | ||
1984 | /* Redistribute with metric specification. */ | |
3dc339cd DA |
1985 | bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
1986 | afi_t afi, int type, uint32_t metric) | |
718e3744 | 1987 | { |
9bcb3eef | 1988 | struct bgp_dest *dest; |
40381db7 | 1989 | struct bgp_path_info *pi; |
d62a17ae | 1990 | |
1991 | if (red->redist_metric_flag && red->redist_metric == metric) | |
3dc339cd | 1992 | return false; |
d62a17ae | 1993 | |
1994 | red->redist_metric_flag = 1; | |
1995 | red->redist_metric = metric; | |
1996 | ||
9bcb3eef DS |
1997 | for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest; |
1998 | dest = bgp_route_next(dest)) { | |
1999 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
40381db7 DS |
2000 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
2001 | && pi->type == type | |
2002 | && pi->instance == red->instance) { | |
d62a17ae | 2003 | struct attr *old_attr; |
2004 | struct attr new_attr; | |
2005 | ||
6f4f49b2 | 2006 | new_attr = *pi->attr; |
d62a17ae | 2007 | new_attr.med = red->redist_metric; |
40381db7 DS |
2008 | old_attr = pi->attr; |
2009 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 2010 | bgp_attr_unintern(&old_attr); |
2011 | ||
9bcb3eef | 2012 | bgp_path_info_set_flag(dest, pi, |
18ee8310 | 2013 | BGP_PATH_ATTR_CHANGED); |
9bcb3eef | 2014 | bgp_process(bgp, dest, afi, SAFI_UNICAST); |
d62a17ae | 2015 | } |
2016 | } | |
2017 | } | |
2018 | ||
3dc339cd | 2019 | return true; |
718e3744 | 2020 | } |
2021 | ||
2022 | /* Unset redistribution. */ | |
d62a17ae | 2023 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 2024 | unsigned short instance) |
718e3744 | 2025 | { |
d62a17ae | 2026 | struct bgp_redist *red; |
2027 | ||
2028 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
2029 | if (!red) | |
2030 | return CMD_SUCCESS; | |
2031 | ||
2032 | /* Return if zebra connection is disabled. */ | |
2033 | if (instance) { | |
2034 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
2035 | instance)) | |
2036 | return CMD_WARNING; | |
2037 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
2038 | } else { | |
2039 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
2040 | return CMD_WARNING; | |
2041 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
2042 | } | |
718e3744 | 2043 | |
d62a17ae | 2044 | if (bgp_install_info_to_zebra(bgp)) { |
2045 | /* Send distribute delete message to zebra. */ | |
2046 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2047 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
2048 | bgp->vrf_id, afi, zebra_route_string(type), | |
2049 | instance); | |
2050 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
2051 | type, instance, bgp->vrf_id); | |
2052 | } | |
2053 | ||
2054 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
2055 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
2056 | ||
2057 | return CMD_SUCCESS; | |
718e3744 | 2058 | } |
2059 | ||
6aeb9e78 | 2060 | /* Unset redistribution. */ |
d62a17ae | 2061 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 2062 | unsigned short instance) |
6aeb9e78 | 2063 | { |
d62a17ae | 2064 | struct bgp_redist *red; |
6aeb9e78 | 2065 | |
ddb5b488 PZ |
2066 | /* |
2067 | * vnc and vpn->vrf checks must be before red check because | |
2068 | * they operate within bgpd irrespective of zebra connection | |
2069 | * status. red lookup fails if there is no zebra connection. | |
2070 | */ | |
49e5a4a0 | 2071 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 2072 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
2073 | vnc_export_bgp_disable(bgp, afi); |
2074 | } | |
2075 | #endif | |
ddb5b488 | 2076 | |
d62a17ae | 2077 | red = bgp_redist_lookup(bgp, afi, type, instance); |
2078 | if (!red) | |
2079 | return CMD_SUCCESS; | |
6aeb9e78 | 2080 | |
d62a17ae | 2081 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 2082 | |
d62a17ae | 2083 | /* Unset route-map. */ |
0a22ddfb | 2084 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 2085 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 2086 | red->rmap.map = NULL; |
6aeb9e78 | 2087 | |
d62a17ae | 2088 | /* Unset metric. */ |
2089 | red->redist_metric_flag = 0; | |
2090 | red->redist_metric = 0; | |
6aeb9e78 | 2091 | |
d62a17ae | 2092 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 2093 | |
d62a17ae | 2094 | return CMD_SUCCESS; |
6aeb9e78 DS |
2095 | } |
2096 | ||
fc2408ec DS |
2097 | void bgp_redistribute_redo(struct bgp *bgp) |
2098 | { | |
2099 | afi_t afi; | |
2100 | int i; | |
2101 | struct list *red_list; | |
2102 | struct listnode *node; | |
2103 | struct bgp_redist *red; | |
2104 | ||
2105 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
2106 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
2107 | ||
2108 | red_list = bgp->redist[afi][i]; | |
2109 | if (!red_list) | |
2110 | continue; | |
2111 | ||
2112 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
2113 | bgp_redistribute_resend(bgp, afi, i, | |
2114 | red->instance); | |
2115 | } | |
2116 | } | |
2117 | } | |
2118 | } | |
2119 | ||
d62a17ae | 2120 | void bgp_zclient_reset(void) |
718e3744 | 2121 | { |
d62a17ae | 2122 | zclient_reset(zclient); |
718e3744 | 2123 | } |
2124 | ||
ad4cbda1 | 2125 | /* Register this instance with Zebra. Invoked upon connect (for |
2126 | * default instance) and when other VRFs are learnt (or created and | |
2127 | * already learnt). | |
2128 | */ | |
d62a17ae | 2129 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 2130 | { |
d62a17ae | 2131 | /* Don't try to register if we're not connected to Zebra */ |
2132 | if (!zclient || zclient->sock < 0) | |
2133 | return; | |
ad4cbda1 | 2134 | |
d62a17ae | 2135 | if (BGP_DEBUG(zebra, ZEBRA)) |
2136 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 2137 | |
d62a17ae | 2138 | /* Register for router-id, interfaces, redistributed routes. */ |
2139 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 2140 | |
e2f3a930 T |
2141 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
2142 | if (bgp->advertise_all_vni) | |
d62a17ae | 2143 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
2144 | |
2145 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 2146 | } |
2147 | ||
2148 | /* Deregister this instance with Zebra. Invoked upon the instance | |
2149 | * being deleted (default or VRF) and it is already registered. | |
2150 | */ | |
d62a17ae | 2151 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 2152 | { |
d62a17ae | 2153 | /* Don't try to deregister if we're not connected to Zebra */ |
2154 | if (zclient->sock < 0) | |
2155 | return; | |
ad4cbda1 | 2156 | |
d62a17ae | 2157 | if (BGP_DEBUG(zebra, ZEBRA)) |
2158 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 2159 | |
e2f3a930 T |
2160 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
2161 | if (bgp->advertise_all_vni) | |
d62a17ae | 2162 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 2163 | |
d62a17ae | 2164 | /* Deregister for router-id, interfaces, redistributed routes. */ |
2165 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 2166 | } |
2167 | ||
d62a17ae | 2168 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2169 | { |
bbad0276 | 2170 | uint32_t ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 2171 | |
d62a17ae | 2172 | /* Don't try to initiate if we're not connected to Zebra */ |
2173 | if (zclient->sock < 0) | |
2174 | return; | |
4a04e5f7 | 2175 | |
d62a17ae | 2176 | if (BGP_DEBUG(zebra, ZEBRA)) |
2177 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
2178 | peer->host); | |
4a04e5f7 | 2179 | |
b3a3290e DS |
2180 | /* |
2181 | * If unnumbered peer (peer->ifp) call thru zapi to start RAs. | |
2182 | * If we don't have an ifp pointer, call function to find the | |
2183 | * ifps for a numbered enhe peer to turn RAs on. | |
2184 | */ | |
2185 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2186 | peer->ifp, 1, ra_interval) | |
2187 | : bgp_nht_reg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2188 | } |
2189 | ||
d62a17ae | 2190 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2191 | { |
d62a17ae | 2192 | /* Don't try to terminate if we're not connected to Zebra */ |
2193 | if (zclient->sock < 0) | |
2194 | return; | |
4a04e5f7 | 2195 | |
d62a17ae | 2196 | if (BGP_DEBUG(zebra, ZEBRA)) |
2197 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
2198 | peer->host); | |
4a04e5f7 | 2199 | |
b3a3290e DS |
2200 | /* |
2201 | * If unnumbered peer (peer->ifp) call thru zapi to stop RAs. | |
2202 | * If we don't have an ifp pointer, call function to find the | |
2203 | * ifps for a numbered enhe peer to turn RAs off. | |
2204 | */ | |
2205 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2206 | peer->ifp, 0, 0) | |
2207 | : bgp_nht_dereg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2208 | } |
2209 | ||
31310b25 MK |
2210 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
2211 | { | |
2212 | struct stream *s = NULL; | |
2213 | ||
2214 | /* Check socket. */ | |
2215 | if (!zclient || zclient->sock < 0) | |
2216 | return 0; | |
2217 | ||
2218 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2219 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2220 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2221 | zlog_debug( |
2222 | "%s: No zebra instance to talk to, cannot advertise subnet", | |
2223 | __func__); | |
31310b25 | 2224 | return 0; |
bb4ef1ae | 2225 | } |
31310b25 MK |
2226 | |
2227 | s = zclient->obuf; | |
2228 | stream_reset(s); | |
2229 | ||
2230 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
2231 | stream_putc(s, advertise); | |
2232 | stream_put3(s, vni); | |
2233 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2234 | ||
2235 | return zclient_send_message(zclient); | |
2236 | } | |
2237 | ||
a8016157 CS |
2238 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
2239 | { | |
2240 | struct stream *s = NULL; | |
2241 | ||
2242 | /* Check socket. */ | |
2243 | if (!zclient || zclient->sock < 0) | |
2244 | return 0; | |
2245 | ||
2246 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2247 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2248 | return 0; | |
2249 | ||
2250 | s = zclient->obuf; | |
2251 | stream_reset(s); | |
2252 | ||
2253 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
2254 | stream_putc(s, advertise); | |
2255 | stream_putl(s, vni); | |
2256 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2257 | ||
2258 | return zclient_send_message(zclient); | |
2259 | } | |
2260 | ||
1a98c087 MK |
2261 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
2262 | { | |
2263 | struct stream *s = NULL; | |
2264 | ||
2265 | /* Check socket. */ | |
2266 | if (!zclient || zclient->sock < 0) | |
2267 | return 0; | |
2268 | ||
2269 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2270 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2271 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2272 | zlog_debug( |
2273 | "%s: No zebra instance to talk to, not installing gw_macip", | |
2274 | __func__); | |
1a98c087 | 2275 | return 0; |
bb4ef1ae | 2276 | } |
1a98c087 MK |
2277 | |
2278 | s = zclient->obuf; | |
2279 | stream_reset(s); | |
2280 | ||
2281 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
2282 | stream_putc(s, advertise); | |
cc6d5476 | 2283 | stream_putl(s, vni); |
1a98c087 MK |
2284 | stream_putw_at(s, 0, stream_get_endp(s)); |
2285 | ||
2286 | return zclient_send_message(zclient); | |
2287 | } | |
2288 | ||
fd069644 DS |
2289 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
2290 | enum vxlan_flood_control flood_ctrl) | |
2291 | { | |
2292 | struct stream *s; | |
2293 | ||
2294 | /* Check socket. */ | |
2295 | if (!zclient || zclient->sock < 0) | |
2296 | return 0; | |
2297 | ||
2298 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2299 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2300 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2301 | zlog_debug( |
2302 | "%s: No zebra instance to talk to, not installing all vni", | |
2303 | __func__); | |
fd069644 | 2304 | return 0; |
bb4ef1ae | 2305 | } |
fd069644 DS |
2306 | |
2307 | s = zclient->obuf; | |
2308 | stream_reset(s); | |
2309 | ||
2310 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2311 | stream_putc(s, flood_ctrl); | |
2312 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2313 | ||
2314 | return zclient_send_message(zclient); | |
2315 | } | |
2316 | ||
d62a17ae | 2317 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2318 | { |
d62a17ae | 2319 | struct stream *s; |
7724c0a1 | 2320 | |
d62a17ae | 2321 | /* Check socket. */ |
2322 | if (!zclient || zclient->sock < 0) | |
2323 | return 0; | |
7724c0a1 | 2324 | |
d62a17ae | 2325 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2326 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2327 | return 0; | |
7724c0a1 | 2328 | |
d62a17ae | 2329 | s = zclient->obuf; |
2330 | stream_reset(s); | |
7724c0a1 | 2331 | |
d62a17ae | 2332 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2333 | stream_putc(s, advertise); | |
fbac9605 DS |
2334 | /* Also inform current BUM handling setting. This is really |
2335 | * relevant only when 'advertise' is set. | |
2336 | */ | |
fd069644 | 2337 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2338 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2339 | |
d62a17ae | 2340 | return zclient_send_message(zclient); |
7724c0a1 | 2341 | } |
2342 | ||
0b9d9cd0 CS |
2343 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2344 | { | |
2345 | struct stream *s; | |
2346 | ||
2347 | /* Check socket. */ | |
2348 | if (!zclient || zclient->sock < 0) | |
2349 | return 0; | |
2350 | ||
2351 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2352 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2353 | return 0; | |
2354 | ||
2355 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2356 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2357 | bgp->evpn_info->dup_addr_detect ? | |
2358 | "enable" : "disable", | |
2359 | bgp->evpn_info->dad_max_moves, | |
2360 | bgp->evpn_info->dad_time, | |
2361 | bgp->evpn_info->dad_freeze ? | |
2362 | "enable" : "disable", | |
2363 | bgp->evpn_info->dad_freeze_time); | |
2364 | ||
2365 | s = zclient->obuf; | |
2366 | stream_reset(s); | |
2367 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2368 | bgp->vrf_id); | |
2369 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2370 | stream_putl(s, bgp->evpn_info->dad_time); | |
2371 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2372 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2373 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2374 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2375 | ||
2376 | return zclient_send_message(zclient); | |
2377 | } | |
2378 | ||
121f9dee | 2379 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2380 | { |
2381 | uint32_t seqno, priority, unique; | |
2382 | enum zapi_rule_notify_owner note; | |
2383 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2384 | struct bgp_pbr_rule *bgp_pbr = NULL; |
58a1d249 | 2385 | char ifname[INTERFACE_NAMSIZ + 1]; |
30d50e6d PG |
2386 | |
2387 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
58a1d249 | 2388 | ifname, ¬e)) |
30d50e6d PG |
2389 | return -1; |
2390 | ||
70eabd12 | 2391 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2392 | if (!bgp_pbra) { |
ffee150e PG |
2393 | /* look in bgp pbr rule */ |
2394 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2395 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2396 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2397 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
15569c58 | 2398 | __func__, unique); |
ffee150e PG |
2399 | return 0; |
2400 | } | |
30d50e6d PG |
2401 | } |
2402 | ||
2403 | switch (note) { | |
2404 | case ZAPI_RULE_FAIL_INSTALL: | |
2405 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2406 | zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__); |
ffee150e PG |
2407 | if (bgp_pbra) { |
2408 | bgp_pbra->installed = false; | |
2409 | bgp_pbra->install_in_progress = false; | |
2410 | } else { | |
2411 | bgp_pbr->installed = false; | |
2412 | bgp_pbr->install_in_progress = false; | |
2413 | } | |
30d50e6d PG |
2414 | break; |
2415 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2416 | if (bgp_pbra) { |
2417 | bgp_pbra->installed = true; | |
2418 | bgp_pbra->install_in_progress = false; | |
2419 | } else { | |
ce3c0614 PG |
2420 | struct bgp_path_info *path; |
2421 | struct bgp_path_info_extra *extra; | |
2422 | ||
ffee150e PG |
2423 | bgp_pbr->installed = true; |
2424 | bgp_pbr->install_in_progress = false; | |
2425 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2426 | /* link bgp_info to bgp_pbr */ |
2427 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2428 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2429 | listnode_add_force(&extra->bgp_fs_iprule, |
2430 | bgp_pbr); | |
ffee150e | 2431 | } |
30d50e6d | 2432 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 | 2433 | zlog_debug("%s: Received RULE_INSTALLED", __func__); |
30d50e6d | 2434 | break; |
f18a08f5 | 2435 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2436 | case ZAPI_RULE_REMOVED: |
2437 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2438 | zlog_debug("%s: Received RULE REMOVED", __func__); |
30d50e6d PG |
2439 | break; |
2440 | } | |
2441 | ||
2442 | return 0; | |
2443 | } | |
2444 | ||
121f9dee | 2445 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2446 | { |
2447 | uint32_t unique; | |
2448 | enum zapi_ipset_notify_owner note; | |
2449 | struct bgp_pbr_match *bgp_pbim; | |
2450 | ||
2451 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2452 | &unique, | |
2453 | ¬e)) | |
2454 | return -1; | |
2455 | ||
2456 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2457 | if (!bgp_pbim) { | |
2458 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2459 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
15569c58 | 2460 | __func__, note, unique); |
30d50e6d PG |
2461 | return 0; |
2462 | } | |
2463 | ||
2464 | switch (note) { | |
2465 | case ZAPI_IPSET_FAIL_INSTALL: | |
2466 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2467 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__); |
30d50e6d PG |
2468 | bgp_pbim->installed = false; |
2469 | bgp_pbim->install_in_progress = false; | |
2470 | break; | |
2471 | case ZAPI_IPSET_INSTALLED: | |
2472 | bgp_pbim->installed = true; | |
2473 | bgp_pbim->install_in_progress = false; | |
2474 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2475 | zlog_debug("%s: Received IPSET_INSTALLED", __func__); |
30d50e6d | 2476 | break; |
f18a08f5 | 2477 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2478 | case ZAPI_IPSET_REMOVED: |
2479 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2480 | zlog_debug("%s: Received IPSET REMOVED", __func__); |
30d50e6d PG |
2481 | break; |
2482 | } | |
2483 | ||
2484 | return 0; | |
2485 | } | |
2486 | ||
121f9dee | 2487 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2488 | { |
2489 | uint32_t unique; | |
2490 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2491 | enum zapi_ipset_entry_notify_owner note; | |
2492 | struct bgp_pbr_match_entry *bgp_pbime; | |
2493 | ||
2494 | if (!zapi_ipset_entry_notify_decode( | |
2495 | zclient->ibuf, | |
2496 | &unique, | |
2497 | ipset_name, | |
2498 | ¬e)) | |
2499 | return -1; | |
2500 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2501 | ipset_name, | |
2502 | unique); | |
2503 | if (!bgp_pbime) { | |
2504 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2505 | zlog_debug( |
2506 | "%s: Fail to look BGP match entry (%u, ID %u)", | |
2507 | __func__, note, unique); | |
30d50e6d PG |
2508 | return 0; |
2509 | } | |
2510 | ||
2511 | switch (note) { | |
2512 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2513 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2514 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
15569c58 | 2515 | __func__); |
30d50e6d PG |
2516 | bgp_pbime->installed = false; |
2517 | bgp_pbime->install_in_progress = false; | |
2518 | break; | |
2519 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2520 | { |
9b6d8fcf | 2521 | struct bgp_path_info *path; |
4b7e6066 DS |
2522 | struct bgp_path_info_extra *extra; |
2523 | ||
2524 | bgp_pbime->installed = true; | |
2525 | bgp_pbime->install_in_progress = false; | |
2526 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2527 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
15569c58 | 2528 | __func__); |
9b6d8fcf DS |
2529 | /* link bgp_path_info to bpme */ |
2530 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2531 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2532 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2533 | } |
30d50e6d | 2534 | break; |
f18a08f5 | 2535 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2536 | case ZAPI_IPSET_ENTRY_REMOVED: |
2537 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2538 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
15569c58 | 2539 | __func__); |
30d50e6d PG |
2540 | break; |
2541 | } | |
2542 | return 0; | |
2543 | } | |
2544 | ||
121f9dee | 2545 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2546 | { |
2547 | uint32_t unique; | |
2548 | enum zapi_iptable_notify_owner note; | |
2549 | struct bgp_pbr_match *bgpm; | |
2550 | ||
2551 | if (!zapi_iptable_notify_decode( | |
2552 | zclient->ibuf, | |
2553 | &unique, | |
2554 | ¬e)) | |
2555 | return -1; | |
2556 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2557 | if (!bgpm) { | |
2558 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed | 2559 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
15569c58 | 2560 | __func__, note, unique); |
c16a0a62 PG |
2561 | return 0; |
2562 | } | |
2563 | switch (note) { | |
2564 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2565 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2566 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
15569c58 | 2567 | __func__); |
c16a0a62 PG |
2568 | bgpm->installed_in_iptable = false; |
2569 | bgpm->install_iptable_in_progress = false; | |
2570 | break; | |
2571 | case ZAPI_IPTABLE_INSTALLED: | |
2572 | bgpm->installed_in_iptable = true; | |
2573 | bgpm->install_iptable_in_progress = false; | |
2574 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2575 | zlog_debug("%s: Received IPTABLE_INSTALLED", __func__); |
a6b07429 | 2576 | bgpm->action->refcnt++; |
c16a0a62 | 2577 | break; |
f18a08f5 | 2578 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2579 | case ZAPI_IPTABLE_REMOVED: |
2580 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2581 | zlog_debug("%s: Received IPTABLE REMOVED", __func__); |
c16a0a62 PG |
2582 | break; |
2583 | } | |
2584 | return 0; | |
2585 | } | |
2586 | ||
a77e2f4b S |
2587 | /* Process route notification messages from RIB */ |
2588 | static int bgp_zebra_route_notify_owner(int command, struct zclient *zclient, | |
2589 | zebra_size_t length, vrf_id_t vrf_id) | |
2590 | { | |
2591 | struct prefix p; | |
2592 | enum zapi_route_notify_owner note; | |
2593 | uint32_t table_id; | |
a77e2f4b S |
2594 | afi_t afi; |
2595 | safi_t safi; | |
2596 | struct bgp_dest *dest; | |
2597 | struct bgp *bgp; | |
2598 | struct bgp_path_info *pi, *new_select; | |
2599 | ||
2600 | if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, ¬e, | |
2601 | &afi, &safi)) { | |
cc42c4f0 | 2602 | zlog_err("%s : error in msg decode", __func__); |
a77e2f4b S |
2603 | return -1; |
2604 | } | |
2605 | ||
2606 | /* Get the bgp instance */ | |
2607 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2608 | if (!bgp) { | |
2609 | flog_err(EC_BGP_INVALID_BGP_INSTANCE, | |
cc42c4f0 DS |
2610 | "%s : bgp instance not found vrf %d", __func__, |
2611 | vrf_id); | |
a77e2f4b S |
2612 | return -1; |
2613 | } | |
2614 | ||
a77e2f4b S |
2615 | /* Find the bgp route node */ |
2616 | dest = bgp_afi_node_lookup(bgp->rib[afi][safi], afi, safi, &p, | |
2617 | &bgp->vrf_prd); | |
2618 | if (!dest) | |
2619 | return -1; | |
2620 | ||
a77e2f4b S |
2621 | switch (note) { |
2622 | case ZAPI_ROUTE_INSTALLED: | |
2623 | new_select = NULL; | |
2624 | /* Clear the flags so that route can be processed */ | |
be785e35 DS |
2625 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); |
2626 | SET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2627 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2628 | zlog_debug("route %pRN : INSTALLED", dest); | |
2629 | /* Find the best route */ | |
2630 | for (pi = dest->info; pi; pi = pi->next) { | |
2631 | /* Process aggregate route */ | |
2632 | bgp_aggregate_increment(bgp, &p, pi, afi, safi); | |
2633 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2634 | new_select = pi; | |
2635 | } | |
2636 | /* Advertise the route */ | |
2637 | if (new_select) | |
2638 | group_announce_route(bgp, afi, safi, dest, new_select); | |
2639 | else { | |
2640 | flog_err(EC_BGP_INVALID_ROUTE, | |
2641 | "selected route %pRN not found", dest); | |
2642 | ||
2643 | bgp_dest_unlock_node(dest); | |
2644 | return -1; | |
a77e2f4b S |
2645 | } |
2646 | break; | |
2647 | case ZAPI_ROUTE_REMOVED: | |
2648 | /* Route deleted from dataplane, reset the installed flag | |
2649 | * so that route can be reinstalled when client sends | |
2650 | * route add later | |
2651 | */ | |
2652 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
1a3519b6 DS |
2653 | if (BGP_DEBUG(zebra, ZEBRA)) |
2654 | zlog_debug("route %pRN: Removed from Fib", dest); | |
a77e2f4b S |
2655 | break; |
2656 | case ZAPI_ROUTE_FAIL_INSTALL: | |
be785e35 | 2657 | new_select = NULL; |
1a3519b6 DS |
2658 | if (BGP_DEBUG(zebra, ZEBRA)) |
2659 | zlog_debug("route: %pRN Failed to Install into Fib", | |
2660 | dest); | |
be785e35 DS |
2661 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); |
2662 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2663 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
2664 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2665 | new_select = pi; | |
2666 | } | |
2667 | if (new_select) | |
2668 | group_announce_route(bgp, afi, safi, dest, new_select); | |
a77e2f4b S |
2669 | /* Error will be logged by zebra module */ |
2670 | break; | |
2671 | case ZAPI_ROUTE_BETTER_ADMIN_WON: | |
1a3519b6 DS |
2672 | if (BGP_DEBUG(zebra, ZEBRA)) |
2673 | zlog_debug("route: %pRN removed due to better admin won", | |
2674 | dest); | |
be785e35 DS |
2675 | new_select = NULL; |
2676 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); | |
2677 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2678 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
2679 | bgp_aggregate_decrement(bgp, &p, pi, afi, safi); | |
2680 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2681 | new_select = pi; | |
2682 | } | |
2683 | if (new_select) | |
2684 | group_announce_route(bgp, afi, safi, dest, new_select); | |
a77e2f4b S |
2685 | /* No action required */ |
2686 | break; | |
2687 | case ZAPI_ROUTE_REMOVE_FAIL: | |
1a3519b6 DS |
2688 | zlog_warn("%s: Route %pRN failure to remove", |
2689 | __func__, dest); | |
a77e2f4b S |
2690 | break; |
2691 | } | |
e71ad4b6 DA |
2692 | |
2693 | bgp_dest_unlock_node(dest); | |
a77e2f4b S |
2694 | return 0; |
2695 | } | |
2696 | ||
6cfe5d15 PG |
2697 | /* this function is used to forge ip rule, |
2698 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2699 | * - or for sample ip rule cmd |
6cfe5d15 | 2700 | */ |
30d50e6d | 2701 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2702 | struct bgp_pbr_action *pbra, |
2703 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2704 | { |
6cfe5d15 | 2705 | struct prefix pfx; |
f01e580f | 2706 | uint8_t fam = AF_INET; |
e95666cb | 2707 | char ifname[INTERFACE_NAMSIZ]; |
30d50e6d | 2708 | |
9f1f03ec | 2709 | if (pbra->nh.type == NEXTHOP_TYPE_IPV6) |
f01e580f | 2710 | fam = AF_INET6; |
30d50e6d | 2711 | stream_putl(s, 0); /* seqno unused */ |
8112a7a0 PG |
2712 | if (pbr) |
2713 | stream_putl(s, pbr->priority); | |
2714 | else | |
2715 | stream_putl(s, 0); | |
2716 | /* ruleno unused - priority change | |
2717 | * ruleno permits distinguishing various FS PBR entries | |
2718 | * - FS PBR entries based on ipset/iptables | |
2719 | * - FS PBR entries based on iprule | |
2720 | * the latter may contain default routing information injected by FS | |
2721 | */ | |
6cfe5d15 PG |
2722 | if (pbr) |
2723 | stream_putl(s, pbr->unique); | |
2724 | else | |
2725 | stream_putl(s, pbra->unique); | |
f56697ef | 2726 | stream_putc(s, 0); /* ip protocol being used */ |
6cfe5d15 PG |
2727 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) |
2728 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2729 | else { | |
2730 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2731 | pfx.family = fam; |
6cfe5d15 PG |
2732 | } |
2733 | stream_putc(s, pfx.family); | |
2734 | stream_putc(s, pfx.prefixlen); | |
2735 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2736 | |
2737 | stream_putw(s, 0); /* src port */ | |
2738 | ||
6cfe5d15 PG |
2739 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2740 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2741 | else { | |
2742 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2743 | pfx.family = fam; |
6cfe5d15 PG |
2744 | } |
2745 | stream_putc(s, pfx.family); | |
2746 | stream_putc(s, pfx.prefixlen); | |
2747 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2748 | |
2749 | stream_putw(s, 0); /* dst port */ | |
e95666cb | 2750 | stream_putc(s, 0); /* dsfield */ |
6cfe5d15 PG |
2751 | /* if pbr present, fwmark is not used */ |
2752 | if (pbr) | |
2753 | stream_putl(s, 0); | |
2754 | else | |
2755 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d | 2756 | |
62bf6b42 DS |
2757 | stream_putl(s, 0); /* queue id */ |
2758 | stream_putw(s, 0); /* vlan_id */ | |
2759 | stream_putw(s, 0); /* vlan_flags */ | |
2760 | stream_putw(s, 0); /* pcp */ | |
2761 | ||
30d50e6d PG |
2762 | stream_putl(s, pbra->table_id); |
2763 | ||
e95666cb DS |
2764 | memset(ifname, 0, sizeof(ifname)); |
2765 | stream_put(s, ifname, INTERFACE_NAMSIZ); /* ifname unused */ | |
30d50e6d PG |
2766 | } |
2767 | ||
2768 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2769 | struct bgp_pbr_match *pbim) | |
2770 | { | |
2771 | stream_putl(s, pbim->unique); | |
2772 | stream_putl(s, pbim->type); | |
a60b7031 | 2773 | stream_putc(s, pbim->family); |
30d50e6d PG |
2774 | stream_put(s, pbim->ipset_name, |
2775 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2776 | } |
2777 | ||
2778 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2779 | struct bgp_pbr_match_entry *pbime) | |
2780 | { | |
2781 | stream_putl(s, pbime->unique); | |
2782 | /* check that back pointer is not null */ | |
2783 | stream_put(s, pbime->backpointer->ipset_name, | |
2784 | ZEBRA_IPSET_NAME_SIZE); | |
2785 | ||
2786 | stream_putc(s, pbime->src.family); | |
2787 | stream_putc(s, pbime->src.prefixlen); | |
2788 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2789 | ||
2790 | stream_putc(s, pbime->dst.family); | |
2791 | stream_putc(s, pbime->dst.prefixlen); | |
2792 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2793 | |
2794 | stream_putw(s, pbime->src_port_min); | |
2795 | stream_putw(s, pbime->src_port_max); | |
2796 | stream_putw(s, pbime->dst_port_min); | |
2797 | stream_putw(s, pbime->dst_port_max); | |
2798 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2799 | } |
2800 | ||
c16a0a62 PG |
2801 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2802 | struct bgp_pbr_action *bpa, | |
2803 | struct bgp_pbr_match *pbm) | |
2804 | { | |
2805 | stream_putl(s, pbm->unique2); | |
2806 | ||
2807 | stream_putl(s, pbm->type); | |
2808 | ||
2809 | stream_putl(s, pbm->flags); | |
2810 | ||
2811 | /* TODO: correlate with what is contained | |
2812 | * into bgp_pbr_action. | |
2813 | * currently only forward supported | |
2814 | */ | |
2815 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2816 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2817 | else | |
2818 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2819 | stream_putl(s, bpa->fwmark); | |
2820 | stream_put(s, pbm->ipset_name, | |
2821 | ZEBRA_IPSET_NAME_SIZE); | |
a60b7031 | 2822 | stream_putc(s, pbm->family); |
83360720 PG |
2823 | stream_putw(s, pbm->pkt_len_min); |
2824 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2825 | stream_putw(s, pbm->tcp_flags); |
2826 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2827 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2828 | stream_putc(s, pbm->fragment); |
f449d223 | 2829 | stream_putc(s, pbm->protocol); |
a60b7031 | 2830 | stream_putw(s, pbm->flow_label); |
c16a0a62 PG |
2831 | } |
2832 | ||
ad4cbda1 | 2833 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2834 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2835 | { |
d62a17ae | 2836 | struct bgp *bgp; |
7076bb2f | 2837 | |
d62a17ae | 2838 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2839 | |
6bfcd0f1 IR |
2840 | /* Send the client registration */ |
2841 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT); | |
2842 | ||
d62a17ae | 2843 | /* At this point, we may or may not have BGP instances configured, but |
2844 | * we're only interested in the default VRF (others wouldn't have learnt | |
2845 | * the VRF from Zebra yet.) | |
2846 | */ | |
2847 | bgp = bgp_get_default(); | |
2848 | if (!bgp) | |
2849 | return; | |
ad4cbda1 | 2850 | |
d62a17ae | 2851 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2852 | |
955bfd98 | 2853 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2854 | bgp_lp_event_zebra_up(); |
955bfd98 | 2855 | |
d62a17ae | 2856 | /* TODO - What if we have peers and networks configured, do we have to |
2857 | * kick-start them? | |
2858 | */ | |
85ef4179 | 2859 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer); |
7076bb2f FL |
2860 | } |
2861 | ||
c44ab6f1 AK |
2862 | static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS) |
2863 | { | |
2864 | esi_t esi; | |
2865 | struct bgp *bgp = NULL; | |
2866 | struct stream *s = NULL; | |
2867 | char buf[ESI_STR_LEN]; | |
2868 | struct in_addr originator_ip; | |
2869 | uint8_t active; | |
74be8313 | 2870 | uint8_t bypass; |
74e2bd89 | 2871 | uint16_t df_pref; |
c44ab6f1 AK |
2872 | |
2873 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2874 | if (!bgp) | |
2875 | return 0; | |
2876 | ||
2877 | s = zclient->ibuf; | |
2878 | stream_get(&esi, s, sizeof(esi_t)); | |
2879 | originator_ip.s_addr = stream_get_ipv4(s); | |
2880 | active = stream_getc(s); | |
74e2bd89 | 2881 | df_pref = stream_getw(s); |
74be8313 | 2882 | bypass = stream_getc(s); |
c44ab6f1 AK |
2883 | |
2884 | if (BGP_DEBUG(zebra, ZEBRA)) | |
74e2bd89 | 2885 | zlog_debug( |
74be8313 AK |
2886 | "Rx add ESI %s originator-ip %pI4 active %u df_pref %u %s", |
2887 | esi_to_str(&esi, buf, sizeof(buf)), &originator_ip, | |
2888 | active, df_pref, bypass ? "bypass" : ""); | |
c44ab6f1 | 2889 | |
a383bfc7 AK |
2890 | frrtrace(5, frr_bgp, evpn_mh_local_es_add_zrecv, &esi, originator_ip, |
2891 | active, bypass, df_pref); | |
2892 | ||
74be8313 AK |
2893 | bgp_evpn_local_es_add(bgp, &esi, originator_ip, active, df_pref, |
2894 | !!bypass); | |
c44ab6f1 AK |
2895 | |
2896 | return 0; | |
2897 | } | |
2898 | ||
2899 | static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS) | |
50f74cf1 | 2900 | { |
2901 | esi_t esi; | |
2902 | struct bgp *bgp = NULL; | |
2903 | struct stream *s = NULL; | |
2904 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2905 | |
2906 | memset(&esi, 0, sizeof(esi_t)); | |
c44ab6f1 AK |
2907 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2908 | if (!bgp) | |
2909 | return 0; | |
2910 | ||
2911 | s = zclient->ibuf; | |
2912 | stream_get(&esi, s, sizeof(esi_t)); | |
2913 | ||
2914 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2915 | zlog_debug("Rx del ESI %s", | |
2916 | esi_to_str(&esi, buf, sizeof(buf))); | |
2917 | ||
a383bfc7 AK |
2918 | frrtrace(1, frr_bgp, evpn_mh_local_es_del_zrecv, &esi); |
2919 | ||
c44ab6f1 AK |
2920 | bgp_evpn_local_es_del(bgp, &esi); |
2921 | ||
2922 | return 0; | |
2923 | } | |
2924 | ||
2925 | static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS) | |
2926 | { | |
2927 | esi_t esi; | |
2928 | vni_t vni; | |
2929 | struct bgp *bgp; | |
2930 | struct stream *s; | |
2931 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2932 | |
2933 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2934 | if (!bgp) | |
2935 | return 0; | |
2936 | ||
2937 | s = zclient->ibuf; | |
2938 | stream_get(&esi, s, sizeof(esi_t)); | |
c44ab6f1 | 2939 | vni = stream_getl(s); |
50f74cf1 | 2940 | |
2941 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c44ab6f1 | 2942 | zlog_debug("Rx %s ESI %s VNI %u", |
3756b9ac IS |
2943 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
2944 | esi_to_str(&esi, buf, sizeof(buf)), vni); | |
50f74cf1 | 2945 | |
a383bfc7 AK |
2946 | if (cmd == ZEBRA_LOCAL_ES_EVI_ADD) { |
2947 | frrtrace(2, frr_bgp, evpn_mh_local_es_evi_add_zrecv, &esi, vni); | |
2948 | ||
c44ab6f1 | 2949 | bgp_evpn_local_es_evi_add(bgp, &esi, vni); |
a383bfc7 AK |
2950 | } else { |
2951 | frrtrace(2, frr_bgp, evpn_mh_local_es_evi_del_zrecv, &esi, vni); | |
2952 | ||
c44ab6f1 | 2953 | bgp_evpn_local_es_evi_del(bgp, &esi, vni); |
a383bfc7 | 2954 | } |
c44ab6f1 | 2955 | |
50f74cf1 | 2956 | return 0; |
2957 | } | |
2958 | ||
121f9dee | 2959 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 2960 | { |
c48d9f5f | 2961 | int filter = 0; |
b67a60d2 | 2962 | vni_t l3vni = 0; |
14e814ea | 2963 | struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} }; |
b67a60d2 | 2964 | struct in_addr originator_ip; |
fe1dc5a3 | 2965 | struct stream *s; |
0483af6e | 2966 | ifindex_t svi_ifindex; |
14e814ea | 2967 | bool is_anycast_mac = false; |
fe1dc5a3 | 2968 | |
6006b807 DA |
2969 | memset(&svi_rmac, 0, sizeof(svi_rmac)); |
2970 | memset(&originator_ip, 0, sizeof(originator_ip)); | |
fe1dc5a3 MK |
2971 | s = zclient->ibuf; |
2972 | l3vni = stream_getl(s); | |
b67a60d2 | 2973 | if (cmd == ZEBRA_L3VNI_ADD) { |
14e814ea | 2974 | stream_get(&svi_rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2975 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2976 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2977 | svi_ifindex = stream_getl(s); |
14e814ea CS |
2978 | stream_get(&vrr_rmac, s, sizeof(struct ethaddr)); |
2979 | is_anycast_mac = stream_getl(s); | |
fe1dc5a3 | 2980 | |
0483af6e | 2981 | if (BGP_DEBUG(zebra, ZEBRA)) |
c0d72166 DS |
2982 | zlog_debug( |
2983 | "Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %pEA vrr-mac %pEA filter %s svi-if %u", | |
2984 | vrf_id_to_name(vrf_id), l3vni, &svi_rmac, | |
2985 | &vrr_rmac, | |
2986 | filter ? "prefix-routes-only" : "none", | |
2987 | svi_ifindex); | |
fe1dc5a3 | 2988 | |
a383bfc7 AK |
2989 | frrtrace(8, frr_bgp, evpn_local_l3vni_add_zrecv, l3vni, vrf_id, |
2990 | &svi_rmac, &vrr_rmac, filter, originator_ip, | |
2991 | svi_ifindex, is_anycast_mac); | |
2992 | ||
14e814ea CS |
2993 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac, |
2994 | originator_ip, filter, svi_ifindex, | |
2995 | is_anycast_mac); | |
0483af6e | 2996 | } else { |
2997 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2998 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2999 | vrf_id_to_name(vrf_id), l3vni); | |
3000 | ||
a383bfc7 AK |
3001 | frrtrace(2, frr_bgp, evpn_local_l3vni_del_zrecv, l3vni, vrf_id); |
3002 | ||
fe1dc5a3 | 3003 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 3004 | } |
fe1dc5a3 MK |
3005 | |
3006 | return 0; | |
3007 | } | |
3008 | ||
121f9dee | 3009 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 3010 | { |
d62a17ae | 3011 | struct stream *s; |
3012 | vni_t vni; | |
3013 | struct bgp *bgp; | |
a4d82a8a | 3014 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 3015 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 3016 | struct in_addr mcast_grp = {INADDR_ANY}; |
9daa5d47 | 3017 | ifindex_t svi_ifindex = 0; |
d62a17ae | 3018 | |
3019 | s = zclient->ibuf; | |
3020 | vni = stream_getl(s); | |
121f9dee | 3021 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 3022 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 3023 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 3024 | mcast_grp.s_addr = stream_get_ipv4(s); |
9daa5d47 | 3025 | stream_get(&svi_ifindex, s, sizeof(ifindex_t)); |
29c53922 MK |
3026 | } |
3027 | ||
d62a17ae | 3028 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
3029 | if (!bgp) | |
3030 | return 0; | |
3031 | ||
3032 | if (BGP_DEBUG(zebra, ZEBRA)) | |
9daa5d47 AD |
3033 | zlog_debug( |
3034 | "Rx VNI %s VRF %s VNI %u tenant-vrf %s SVI ifindex %u", | |
3035 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", | |
3036 | vrf_id_to_name(vrf_id), vni, | |
3037 | vrf_id_to_name(tenant_vrf_id), svi_ifindex); | |
d62a17ae | 3038 | |
a383bfc7 AK |
3039 | if (cmd == ZEBRA_VNI_ADD) { |
3040 | frrtrace(4, frr_bgp, evpn_local_vni_add_zrecv, vni, vtep_ip, | |
3041 | tenant_vrf_id, mcast_grp); | |
3042 | ||
d62a17ae | 3043 | return bgp_evpn_local_vni_add( |
975a328e DA |
3044 | bgp, vni, |
3045 | vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id, | |
9daa5d47 | 3046 | tenant_vrf_id, mcast_grp, svi_ifindex); |
a383bfc7 AK |
3047 | } else { |
3048 | frrtrace(1, frr_bgp, evpn_local_vni_del_zrecv, vni); | |
3049 | ||
d62a17ae | 3050 | return bgp_evpn_local_vni_del(bgp, vni); |
a383bfc7 | 3051 | } |
128ea8ab | 3052 | } |
3053 | ||
121f9dee | 3054 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 3055 | { |
d62a17ae | 3056 | struct stream *s; |
3057 | vni_t vni; | |
3058 | struct bgp *bgp; | |
3059 | struct ethaddr mac; | |
3060 | struct ipaddr ip; | |
3061 | int ipa_len; | |
f07e1c99 | 3062 | uint8_t flags = 0; |
3063 | uint32_t seqnum = 0; | |
ec0ab544 | 3064 | int state = 0; |
c44ab6f1 AK |
3065 | char buf2[ESI_STR_LEN]; |
3066 | esi_t esi; | |
d62a17ae | 3067 | |
3068 | memset(&ip, 0, sizeof(ip)); | |
3069 | s = zclient->ibuf; | |
3070 | vni = stream_getl(s); | |
28328ea9 | 3071 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 3072 | ipa_len = stream_getl(s); |
3073 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
3074 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 3075 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 3076 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 3077 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 3078 | ipa_len); |
d62a17ae | 3079 | return -1; |
3080 | } | |
3081 | ||
3082 | if (ipa_len) { | |
3083 | ip.ipa_type = | |
3084 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
3085 | stream_get(&ip.ip.addr, s, ipa_len); | |
3086 | } | |
121f9dee | 3087 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 3088 | flags = stream_getc(s); |
3089 | seqnum = stream_getl(s); | |
c44ab6f1 | 3090 | stream_get(&esi, s, sizeof(esi_t)); |
ec0ab544 AK |
3091 | } else { |
3092 | state = stream_getl(s); | |
35fb444b | 3093 | memset(&esi, 0, sizeof(esi_t)); |
f07e1c99 | 3094 | } |
d62a17ae | 3095 | |
3096 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
3097 | if (!bgp) | |
3098 | return 0; | |
3099 | ||
3100 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c0d72166 | 3101 | zlog_debug( |
2dd0dde7 | 3102 | "%u:Recv MACIP %s f 0x%x MAC %pEA IP %pIA VNI %u seq %u state %d ESI %s", |
c0d72166 DS |
3103 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags, |
3104 | &mac, &ip, vni, seqnum, state, | |
3105 | esi_to_str(&esi, buf2, sizeof(buf2))); | |
d62a17ae | 3106 | |
a383bfc7 AK |
3107 | if (cmd == ZEBRA_MACIP_ADD) { |
3108 | frrtrace(6, frr_bgp, evpn_local_macip_add_zrecv, vni, &mac, &ip, | |
3109 | flags, seqnum, &esi); | |
3110 | ||
f07e1c99 | 3111 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
c44ab6f1 | 3112 | flags, seqnum, &esi); |
a383bfc7 AK |
3113 | } else { |
3114 | frrtrace(4, frr_bgp, evpn_local_macip_del_zrecv, vni, &mac, &ip, | |
3115 | state); | |
3116 | ||
ec0ab544 | 3117 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
a383bfc7 | 3118 | } |
128ea8ab | 3119 | } |
6aeb9e78 | 3120 | |
a243d1db | 3121 | static int bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
3122 | { |
3123 | struct stream *s = NULL; | |
3124 | struct bgp *bgp_vrf = NULL; | |
3125 | struct prefix p; | |
31310b25 | 3126 | |
6006b807 | 3127 | memset(&p, 0, sizeof(p)); |
31310b25 MK |
3128 | s = zclient->ibuf; |
3129 | stream_get(&p, s, sizeof(struct prefix)); | |
3130 | ||
3131 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
3132 | if (!bgp_vrf) | |
a243d1db | 3133 | return 0; |
31310b25 MK |
3134 | |
3135 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2dbe669b | 3136 | zlog_debug("Recv prefix %pFX %s on vrf %s", &p, |
31310b25 MK |
3137 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", |
3138 | vrf_id_to_name(vrf_id)); | |
3139 | ||
3140 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
3141 | ||
3142 | if (p.family == AF_INET) | |
d90b788e A |
3143 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
3144 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 3145 | else |
d90b788e A |
3146 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
3147 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
3148 | |
3149 | } else { | |
3150 | if (p.family == AF_INET) | |
d90b788e A |
3151 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
3152 | SAFI_UNICAST); | |
31310b25 | 3153 | else |
d90b788e A |
3154 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
3155 | SAFI_UNICAST); | |
31310b25 | 3156 | } |
a243d1db | 3157 | return 0; |
31310b25 MK |
3158 | } |
3159 | ||
a243d1db | 3160 | static int bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
3161 | { |
3162 | struct stream *s = NULL; | |
3163 | uint8_t response_keep; | |
3164 | uint32_t first; | |
3165 | uint32_t last; | |
aec865e4 FR |
3166 | uint8_t proto; |
3167 | unsigned short instance; | |
955bfd98 PZ |
3168 | |
3169 | s = zclient->ibuf; | |
aec865e4 FR |
3170 | STREAM_GETC(s, proto); |
3171 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
3172 | STREAM_GETC(s, response_keep); |
3173 | STREAM_GETL(s, first); | |
3174 | STREAM_GETL(s, last); | |
3175 | ||
aec865e4 | 3176 | if (zclient->redist_default != proto) { |
e50f7cfd | 3177 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 3178 | proto); |
a243d1db | 3179 | return 0; |
aec865e4 FR |
3180 | } |
3181 | if (zclient->instance != instance) { | |
e50f7cfd | 3182 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 3183 | proto); |
a243d1db | 3184 | return 0; |
aec865e4 FR |
3185 | } |
3186 | ||
955bfd98 PZ |
3187 | if (first > last || |
3188 | first < MPLS_LABEL_UNRESERVED_MIN || | |
3189 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
3190 | ||
e50f7cfd | 3191 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 3192 | __func__, first, last); |
a243d1db | 3193 | return 0; |
955bfd98 PZ |
3194 | } |
3195 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3196 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
3197 | first, last, response_keep); | |
3198 | } | |
3199 | ||
e70e9f8e | 3200 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 | 3201 | |
a243d1db DL |
3202 | return 0; |
3203 | ||
955bfd98 | 3204 | stream_failure: /* for STREAM_GETX */ |
a243d1db | 3205 | return -1; |
955bfd98 PZ |
3206 | } |
3207 | ||
342213ea DS |
3208 | extern struct zebra_privs_t bgpd_privs; |
3209 | ||
138c5a74 DS |
3210 | static int bgp_ifp_create(struct interface *ifp) |
3211 | { | |
ef7bd2a3 DS |
3212 | struct bgp *bgp; |
3213 | ||
3214 | if (BGP_DEBUG(zebra, ZEBRA)) | |
096f7609 IR |
3215 | zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf->vrf_id, |
3216 | ifp->name); | |
ef7bd2a3 | 3217 | |
096f7609 | 3218 | bgp = ifp->vrf->info; |
ef7bd2a3 DS |
3219 | if (!bgp) |
3220 | return 0; | |
3221 | ||
3222 | bgp_mac_add_mac_entry(ifp); | |
3223 | ||
3224 | bgp_update_interface_nbrs(bgp, ifp, ifp); | |
0d020cd6 | 3225 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
138c5a74 DS |
3226 | return 0; |
3227 | } | |
3228 | ||
a243d1db | 3229 | static int bgp_zebra_process_srv6_locator_chunk(ZAPI_CALLBACK_ARGS) |
a0281b2e HS |
3230 | { |
3231 | struct stream *s = NULL; | |
7de4c885 HS |
3232 | struct bgp *bgp = bgp_get_default(); |
3233 | struct listnode *node; | |
1c21a234 NM |
3234 | struct srv6_locator_chunk *c; |
3235 | struct srv6_locator_chunk *chunk = srv6_locator_chunk_alloc(); | |
a0281b2e HS |
3236 | |
3237 | s = zclient->ibuf; | |
1c21a234 | 3238 | zapi_srv6_locator_chunk_decode(s, chunk); |
a0281b2e | 3239 | |
1c21a234 | 3240 | if (strcmp(bgp->srv6_locator_name, chunk->locator_name) != 0) { |
3a0220e4 | 3241 | zlog_err("%s: Locator name unmatch %s:%s", __func__, |
1c21a234 | 3242 | bgp->srv6_locator_name, chunk->locator_name); |
69467313 | 3243 | srv6_locator_chunk_free(&chunk); |
a243d1db | 3244 | return 0; |
a0281b2e HS |
3245 | } |
3246 | ||
a0281b2e | 3247 | for (ALL_LIST_ELEMENTS_RO(bgp->srv6_locator_chunks, node, c)) { |
1c21a234 | 3248 | if (!prefix_cmp(&c->prefix, &chunk->prefix)) { |
69467313 | 3249 | srv6_locator_chunk_free(&chunk); |
a243d1db | 3250 | return 0; |
1c21a234 | 3251 | } |
a0281b2e HS |
3252 | } |
3253 | ||
3254 | listnode_add(bgp->srv6_locator_chunks, chunk); | |
3255 | vpn_leak_postchange_all(); | |
a243d1db | 3256 | return 0; |
a0281b2e HS |
3257 | } |
3258 | ||
d79ff732 HS |
3259 | static int bgp_zebra_process_srv6_locator_add(ZAPI_CALLBACK_ARGS) |
3260 | { | |
3261 | struct srv6_locator loc = {}; | |
3262 | struct bgp *bgp = bgp_get_default(); | |
3263 | const char *loc_name = bgp->srv6_locator_name; | |
3264 | ||
3265 | if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0) | |
3266 | return -1; | |
3267 | ||
3268 | if (!bgp || !bgp->srv6_enabled) | |
3269 | return 0; | |
3270 | ||
3271 | if (bgp_zebra_srv6_manager_get_locator_chunk(loc_name) < 0) | |
3272 | return -1; | |
3273 | ||
3274 | return 0; | |
3275 | } | |
3276 | ||
3277 | static int bgp_zebra_process_srv6_locator_delete(ZAPI_CALLBACK_ARGS) | |
3278 | { | |
3279 | struct srv6_locator loc = {}; | |
3280 | struct bgp *bgp = bgp_get_default(); | |
3281 | struct listnode *node, *nnode; | |
bee2e7d0 | 3282 | struct srv6_locator_chunk *chunk, *tovpn_sid_locator; |
d79ff732 HS |
3283 | struct bgp_srv6_function *func; |
3284 | struct bgp *bgp_vrf; | |
bee2e7d0 | 3285 | struct in6_addr *tovpn_sid; |
d79ff732 HS |
3286 | struct prefix_ipv6 tmp_prefi; |
3287 | ||
3288 | if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0) | |
3289 | return -1; | |
3290 | ||
3291 | // refresh chunks | |
3292 | for (ALL_LIST_ELEMENTS(bgp->srv6_locator_chunks, node, nnode, chunk)) | |
3293 | if (prefix_match((struct prefix *)&loc.prefix, | |
03852f67 | 3294 | (struct prefix *)&chunk->prefix)) { |
d79ff732 | 3295 | listnode_delete(bgp->srv6_locator_chunks, chunk); |
69467313 | 3296 | srv6_locator_chunk_free(&chunk); |
03852f67 | 3297 | } |
d79ff732 HS |
3298 | |
3299 | // refresh functions | |
3300 | for (ALL_LIST_ELEMENTS(bgp->srv6_functions, node, nnode, func)) { | |
3301 | tmp_prefi.family = AF_INET6; | |
3302 | tmp_prefi.prefixlen = 128; | |
3303 | tmp_prefi.prefix = func->sid; | |
3304 | if (prefix_match((struct prefix *)&loc.prefix, | |
bda15542 | 3305 | (struct prefix *)&tmp_prefi)) { |
d79ff732 | 3306 | listnode_delete(bgp->srv6_functions, func); |
bda15542 CS |
3307 | XFREE(MTYPE_BGP_SRV6_FUNCTION, func); |
3308 | } | |
d79ff732 HS |
3309 | } |
3310 | ||
3311 | // refresh tovpn_sid | |
3312 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp_vrf)) { | |
3313 | if (bgp_vrf->inst_type != BGP_INSTANCE_TYPE_VRF) | |
3314 | continue; | |
3315 | ||
3316 | // refresh vpnv4 tovpn_sid | |
3317 | tovpn_sid = bgp_vrf->vpn_policy[AFI_IP].tovpn_sid; | |
3318 | if (tovpn_sid) { | |
3319 | tmp_prefi.family = AF_INET6; | |
3320 | tmp_prefi.prefixlen = 128; | |
3321 | tmp_prefi.prefix = *tovpn_sid; | |
3322 | if (prefix_match((struct prefix *)&loc.prefix, | |
3323 | (struct prefix *)&tmp_prefi)) | |
3324 | XFREE(MTYPE_BGP_SRV6_SID, | |
3325 | bgp_vrf->vpn_policy[AFI_IP].tovpn_sid); | |
3326 | } | |
3327 | ||
3328 | // refresh vpnv6 tovpn_sid | |
3329 | tovpn_sid = bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid; | |
3330 | if (tovpn_sid) { | |
3331 | tmp_prefi.family = AF_INET6; | |
3332 | tmp_prefi.prefixlen = 128; | |
3333 | tmp_prefi.prefix = *tovpn_sid; | |
3334 | if (prefix_match((struct prefix *)&loc.prefix, | |
3335 | (struct prefix *)&tmp_prefi)) | |
3336 | XFREE(MTYPE_BGP_SRV6_SID, | |
3337 | bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid); | |
3338 | } | |
527588aa CS |
3339 | |
3340 | /* refresh per-vrf tovpn_sid */ | |
3341 | tovpn_sid = bgp_vrf->tovpn_sid; | |
3342 | if (tovpn_sid) { | |
3343 | tmp_prefi.family = AF_INET6; | |
3344 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
3345 | tmp_prefi.prefix = *tovpn_sid; | |
3346 | if (prefix_match((struct prefix *)&loc.prefix, | |
3347 | (struct prefix *)&tmp_prefi)) | |
3348 | XFREE(MTYPE_BGP_SRV6_SID, bgp_vrf->tovpn_sid); | |
3349 | } | |
d79ff732 HS |
3350 | } |
3351 | ||
3352 | vpn_leak_postchange_all(); | |
f8e9c702 CS |
3353 | |
3354 | /* refresh tovpn_sid_locator */ | |
3355 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp_vrf)) { | |
3356 | if (bgp_vrf->inst_type != BGP_INSTANCE_TYPE_VRF) | |
3357 | continue; | |
3358 | ||
3359 | /* refresh vpnv4 tovpn_sid_locator */ | |
3360 | tovpn_sid_locator = | |
3361 | bgp_vrf->vpn_policy[AFI_IP].tovpn_sid_locator; | |
3362 | if (tovpn_sid_locator) { | |
3363 | tmp_prefi.family = AF_INET6; | |
3364 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
bee2e7d0 | 3365 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; |
f8e9c702 | 3366 | if (prefix_match((struct prefix *)&loc.prefix, |
a1d5e05f | 3367 | (struct prefix *)&tmp_prefi)) |
69467313 CS |
3368 | srv6_locator_chunk_free( |
3369 | &bgp_vrf->vpn_policy[AFI_IP] | |
3370 | .tovpn_sid_locator); | |
f8e9c702 CS |
3371 | } |
3372 | ||
3373 | /* refresh vpnv6 tovpn_sid_locator */ | |
3374 | tovpn_sid_locator = | |
3375 | bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid_locator; | |
3376 | if (tovpn_sid_locator) { | |
3377 | tmp_prefi.family = AF_INET6; | |
3378 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
bee2e7d0 | 3379 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; |
f8e9c702 | 3380 | if (prefix_match((struct prefix *)&loc.prefix, |
a1d5e05f | 3381 | (struct prefix *)&tmp_prefi)) |
69467313 CS |
3382 | srv6_locator_chunk_free( |
3383 | &bgp_vrf->vpn_policy[AFI_IP6] | |
3384 | .tovpn_sid_locator); | |
f8e9c702 | 3385 | } |
527588aa CS |
3386 | |
3387 | /* refresh per-vrf tovpn_sid_locator */ | |
3388 | tovpn_sid_locator = bgp_vrf->tovpn_sid_locator; | |
3389 | if (tovpn_sid_locator) { | |
3390 | tmp_prefi.family = AF_INET6; | |
3391 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
3392 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; | |
3393 | if (prefix_match((struct prefix *)&loc.prefix, | |
3394 | (struct prefix *)&tmp_prefi)) | |
69467313 CS |
3395 | srv6_locator_chunk_free( |
3396 | &bgp_vrf->tovpn_sid_locator); | |
527588aa | 3397 | } |
f8e9c702 CS |
3398 | } |
3399 | ||
d79ff732 HS |
3400 | return 0; |
3401 | } | |
3402 | ||
a243d1db DL |
3403 | static zclient_handler *const bgp_handlers[] = { |
3404 | [ZEBRA_ROUTER_ID_UPDATE] = bgp_router_id_update, | |
3405 | [ZEBRA_INTERFACE_ADDRESS_ADD] = bgp_interface_address_add, | |
3406 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = bgp_interface_address_delete, | |
3407 | [ZEBRA_INTERFACE_NBR_ADDRESS_ADD] = bgp_interface_nbr_address_add, | |
3408 | [ZEBRA_INTERFACE_NBR_ADDRESS_DELETE] = bgp_interface_nbr_address_delete, | |
3409 | [ZEBRA_INTERFACE_VRF_UPDATE] = bgp_interface_vrf_update, | |
3410 | [ZEBRA_REDISTRIBUTE_ROUTE_ADD] = zebra_read_route, | |
3411 | [ZEBRA_REDISTRIBUTE_ROUTE_DEL] = zebra_read_route, | |
3412 | [ZEBRA_NEXTHOP_UPDATE] = bgp_read_nexthop_update, | |
3413 | [ZEBRA_FEC_UPDATE] = bgp_read_fec_update, | |
3414 | [ZEBRA_LOCAL_ES_ADD] = bgp_zebra_process_local_es_add, | |
3415 | [ZEBRA_LOCAL_ES_DEL] = bgp_zebra_process_local_es_del, | |
3416 | [ZEBRA_VNI_ADD] = bgp_zebra_process_local_vni, | |
3417 | [ZEBRA_LOCAL_ES_EVI_ADD] = bgp_zebra_process_local_es_evi, | |
3418 | [ZEBRA_LOCAL_ES_EVI_DEL] = bgp_zebra_process_local_es_evi, | |
3419 | [ZEBRA_VNI_DEL] = bgp_zebra_process_local_vni, | |
3420 | [ZEBRA_MACIP_ADD] = bgp_zebra_process_local_macip, | |
3421 | [ZEBRA_MACIP_DEL] = bgp_zebra_process_local_macip, | |
3422 | [ZEBRA_L3VNI_ADD] = bgp_zebra_process_local_l3vni, | |
3423 | [ZEBRA_L3VNI_DEL] = bgp_zebra_process_local_l3vni, | |
3424 | [ZEBRA_IP_PREFIX_ROUTE_ADD] = bgp_zebra_process_local_ip_prefix, | |
3425 | [ZEBRA_IP_PREFIX_ROUTE_DEL] = bgp_zebra_process_local_ip_prefix, | |
3426 | [ZEBRA_GET_LABEL_CHUNK] = bgp_zebra_process_label_chunk, | |
3427 | [ZEBRA_RULE_NOTIFY_OWNER] = rule_notify_owner, | |
3428 | [ZEBRA_IPSET_NOTIFY_OWNER] = ipset_notify_owner, | |
3429 | [ZEBRA_IPSET_ENTRY_NOTIFY_OWNER] = ipset_entry_notify_owner, | |
3430 | [ZEBRA_IPTABLE_NOTIFY_OWNER] = iptable_notify_owner, | |
3431 | [ZEBRA_ROUTE_NOTIFY_OWNER] = bgp_zebra_route_notify_owner, | |
3432 | [ZEBRA_SRV6_LOCATOR_ADD] = bgp_zebra_process_srv6_locator_add, | |
3433 | [ZEBRA_SRV6_LOCATOR_DELETE] = bgp_zebra_process_srv6_locator_delete, | |
3434 | [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK] = | |
3435 | bgp_zebra_process_srv6_locator_chunk, | |
3436 | }; | |
3437 | ||
4cd690ae PG |
3438 | static int bgp_if_new_hook(struct interface *ifp) |
3439 | { | |
3440 | struct bgp_interface *iifp; | |
3441 | ||
3442 | if (ifp->info) | |
3443 | return 0; | |
3444 | iifp = XCALLOC(MTYPE_BGP_IF_INFO, sizeof(struct bgp_interface)); | |
3445 | ifp->info = iifp; | |
3446 | ||
3447 | return 0; | |
3448 | } | |
3449 | ||
3450 | static int bgp_if_delete_hook(struct interface *ifp) | |
3451 | { | |
3452 | XFREE(MTYPE_BGP_IF_INFO, ifp->info); | |
3453 | return 0; | |
3454 | } | |
3455 | ||
3456 | void bgp_if_init(void) | |
3457 | { | |
3458 | /* Initialize Zebra interface data structure. */ | |
3459 | hook_register_prio(if_add, 0, bgp_if_new_hook); | |
3460 | hook_register_prio(if_del, 0, bgp_if_delete_hook); | |
3461 | } | |
3462 | ||
f533be73 | 3463 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 3464 | { |
d62a17ae | 3465 | zclient_num_connects = 0; |
3466 | ||
138c5a74 DS |
3467 | if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up, |
3468 | bgp_ifp_down, bgp_ifp_destroy); | |
3469 | ||
d62a17ae | 3470 | /* Set default values. */ |
a243d1db DL |
3471 | zclient = zclient_new(master, &zclient_options_default, bgp_handlers, |
3472 | array_size(bgp_handlers)); | |
342213ea | 3473 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 3474 | zclient->zebra_connected = bgp_zebra_connected; |
f533be73 | 3475 | zclient->instance = instance; |
718e3744 | 3476 | } |
bb86c601 | 3477 | |
d62a17ae | 3478 | void bgp_zebra_destroy(void) |
bb86c601 | 3479 | { |
d62a17ae | 3480 | if (zclient == NULL) |
3481 | return; | |
3482 | zclient_stop(zclient); | |
3483 | zclient_free(zclient); | |
3484 | zclient = NULL; | |
bb86c601 | 3485 | } |
afbb1c59 | 3486 | |
d62a17ae | 3487 | int bgp_zebra_num_connects(void) |
afbb1c59 | 3488 | { |
d62a17ae | 3489 | return zclient_num_connects; |
afbb1c59 | 3490 | } |
30d50e6d | 3491 | |
6cfe5d15 PG |
3492 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
3493 | struct bgp_pbr_rule *pbr, | |
3494 | bool install) | |
30d50e6d PG |
3495 | { |
3496 | struct stream *s; | |
3497 | ||
6cfe5d15 | 3498 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 3499 | return; |
6cfe5d15 PG |
3500 | if (pbr && pbr->install_in_progress) |
3501 | return; | |
3502 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3503 | if (pbr) | |
15569c58 | 3504 | zlog_debug("%s: table %d (ip rule) %d", __func__, |
6cfe5d15 PG |
3505 | pbra->table_id, install); |
3506 | else | |
15569c58 | 3507 | zlog_debug("%s: table %d fwmark %d %d", __func__, |
6cfe5d15 PG |
3508 | pbra->table_id, pbra->fwmark, install); |
3509 | } | |
30d50e6d PG |
3510 | s = zclient->obuf; |
3511 | stream_reset(s); | |
3512 | ||
3513 | zclient_create_header(s, | |
3514 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
3515 | VRF_DEFAULT); | |
3516 | stream_putl(s, 1); /* send one pbr action */ | |
3517 | ||
6cfe5d15 | 3518 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
3519 | |
3520 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e DS |
3521 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) |
3522 | && install) { | |
6cfe5d15 PG |
3523 | if (!pbr) |
3524 | pbra->install_in_progress = true; | |
3525 | else | |
3526 | pbr->install_in_progress = true; | |
3527 | } | |
30d50e6d PG |
3528 | } |
3529 | ||
3530 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
3531 | { | |
3532 | struct stream *s; | |
3533 | ||
3534 | if (pbrim->install_in_progress) | |
3535 | return; | |
f0936054 | 3536 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3537 | zlog_debug("%s: name %s type %d %d, ID %u", __func__, |
3538 | pbrim->ipset_name, pbrim->type, install, | |
3539 | pbrim->unique); | |
30d50e6d PG |
3540 | s = zclient->obuf; |
3541 | stream_reset(s); | |
3542 | ||
3543 | zclient_create_header(s, | |
3544 | install ? ZEBRA_IPSET_CREATE : | |
3545 | ZEBRA_IPSET_DESTROY, | |
3546 | VRF_DEFAULT); | |
3547 | ||
3548 | stream_putl(s, 1); /* send one pbr action */ | |
3549 | ||
3550 | bgp_encode_pbr_ipset_match(s, pbrim); | |
3551 | ||
3552 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3553 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3554 | pbrim->install_in_progress = true; |
3555 | } | |
3556 | ||
3557 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
3558 | bool install) | |
3559 | { | |
3560 | struct stream *s; | |
3561 | ||
3562 | if (pbrime->install_in_progress) | |
3563 | return; | |
f0936054 | 3564 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3565 | zlog_debug("%s: name %s %d %d, ID %u", __func__, |
3566 | pbrime->backpointer->ipset_name, pbrime->unique, | |
3567 | install, pbrime->unique); | |
30d50e6d PG |
3568 | s = zclient->obuf; |
3569 | stream_reset(s); | |
3570 | ||
3571 | zclient_create_header(s, | |
3572 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
3573 | ZEBRA_IPSET_ENTRY_DELETE, | |
3574 | VRF_DEFAULT); | |
3575 | ||
3576 | stream_putl(s, 1); /* send one pbr action */ | |
3577 | ||
3578 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
3579 | ||
3580 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3581 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3582 | pbrime->install_in_progress = true; |
3583 | } | |
c16a0a62 | 3584 | |
8f242187 PG |
3585 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s, |
3586 | uint8_t family) | |
4762c213 PG |
3587 | { |
3588 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3589 | struct bgp_pbr_interface_head *head; | |
3590 | struct bgp_pbr_interface *pbr_if; | |
3591 | struct interface *ifp; | |
3592 | ||
3593 | if (!bgp_pbr_cfg) | |
3594 | return; | |
8f242187 PG |
3595 | if (family == AF_INET) |
3596 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3597 | else | |
3598 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3599 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3600 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); |
4762c213 PG |
3601 | if (ifp) |
3602 | stream_putl(s, ifp->ifindex); | |
3603 | } | |
3604 | } | |
3605 | ||
8f242187 | 3606 | static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family) |
4762c213 PG |
3607 | { |
3608 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3609 | struct bgp_pbr_interface_head *head; | |
3610 | struct bgp_pbr_interface *pbr_if; | |
3611 | int cnt = 0; | |
3612 | ||
3613 | if (!bgp_pbr_cfg) | |
3614 | return 0; | |
8f242187 PG |
3615 | if (family == AF_INET) |
3616 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3617 | else | |
3618 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3619 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3620 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) |
4762c213 PG |
3621 | cnt++; |
3622 | } | |
3623 | return cnt; | |
3624 | } | |
3625 | ||
c16a0a62 PG |
3626 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
3627 | struct bgp_pbr_match *pbm, | |
3628 | bool install) | |
3629 | { | |
3630 | struct stream *s; | |
b5c40105 | 3631 | int ret = 0; |
4762c213 | 3632 | int nb_interface; |
c16a0a62 PG |
3633 | |
3634 | if (pbm->install_iptable_in_progress) | |
3635 | return; | |
f0936054 | 3636 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3637 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__, |
3638 | pbm->ipset_name, pbm->type, pba->fwmark, install, | |
88055124 | 3639 | pbm->unique2); |
c16a0a62 PG |
3640 | s = zclient->obuf; |
3641 | stream_reset(s); | |
3642 | ||
3643 | zclient_create_header(s, | |
3644 | install ? ZEBRA_IPTABLE_ADD : | |
3645 | ZEBRA_IPTABLE_DELETE, | |
3646 | VRF_DEFAULT); | |
3647 | ||
3648 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
8f242187 | 3649 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family); |
4762c213 PG |
3650 | stream_putl(s, nb_interface); |
3651 | if (nb_interface) | |
8f242187 | 3652 | bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family); |
c16a0a62 | 3653 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
3654 | ret = zclient_send_message(zclient); |
3655 | if (install) { | |
8a3f8f2e | 3656 | if (ret != ZCLIENT_SEND_FAILURE) |
b5c40105 PG |
3657 | pba->refcnt++; |
3658 | else | |
3659 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 3660 | } |
c16a0a62 | 3661 | } |
f7df1907 PG |
3662 | |
3663 | /* inject in table <table_id> a default route to: | |
3664 | * - if nexthop IP is present : to this nexthop | |
3665 | * - if vrf is different from local : to the matching VRF | |
3666 | */ | |
3667 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
3668 | afi_t afi, uint32_t table_id, bool announce) | |
3669 | { | |
3670 | struct zapi_nexthop *api_nh; | |
3671 | struct zapi_route api; | |
3672 | struct prefix p; | |
3673 | ||
f01e580f PG |
3674 | if (!nh || (nh->type != NEXTHOP_TYPE_IPV4 |
3675 | && nh->type != NEXTHOP_TYPE_IPV6) | |
f7df1907 PG |
3676 | || nh->vrf_id == VRF_UNKNOWN) |
3677 | return; | |
7afeaffa PG |
3678 | |
3679 | /* in vrf-lite, no default route has to be announced | |
3680 | * the table id of vrf is directly used to divert traffic | |
3681 | */ | |
3682 | if (!vrf_is_backend_netns() && bgp->vrf_id != nh->vrf_id) | |
3683 | return; | |
3684 | ||
6006b807 | 3685 | memset(&p, 0, sizeof(p)); |
f01e580f | 3686 | if (afi != AFI_IP && afi != AFI_IP6) |
f7df1907 | 3687 | return; |
f01e580f | 3688 | p.family = afi2family(afi); |
f7df1907 PG |
3689 | memset(&api, 0, sizeof(api)); |
3690 | api.vrf_id = bgp->vrf_id; | |
3691 | api.type = ZEBRA_ROUTE_BGP; | |
3692 | api.safi = SAFI_UNICAST; | |
3693 | api.prefix = p; | |
3694 | api.tableid = table_id; | |
3695 | api.nexthop_num = 1; | |
3696 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
3697 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
3698 | api_nh = &api.nexthops[0]; | |
3699 | ||
38a8c751 DS |
3700 | api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT; |
3701 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
3702 | ||
f7df1907 | 3703 | /* redirect IP */ |
f01e580f | 3704 | if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) { |
f7df1907 PG |
3705 | api_nh->vrf_id = nh->vrf_id; |
3706 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
3707 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
3708 | ||
f7df1907 | 3709 | if (BGP_DEBUG(zebra, ZEBRA)) |
07380148 DA |
3710 | zlog_debug( |
3711 | "BGP: %s default route to %pI4 table %d (redirect IP)", | |
3712 | announce ? "adding" : "withdrawing", | |
3713 | &nh->gate.ipv4, table_id); | |
3714 | ||
f01e580f PG |
3715 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD |
3716 | : ZEBRA_ROUTE_DELETE, | |
3717 | zclient, &api); | |
3718 | } else if (afi == AFI_IP6 && | |
3719 | memcmp(&nh->gate.ipv6, | |
3720 | &in6addr_any, sizeof(struct in6_addr))) { | |
f01e580f PG |
3721 | api_nh->vrf_id = nh->vrf_id; |
3722 | memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, | |
3723 | sizeof(struct in6_addr)); | |
3724 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
3725 | ||
f01e580f | 3726 | if (BGP_DEBUG(zebra, ZEBRA)) |
07380148 DA |
3727 | zlog_debug( |
3728 | "BGP: %s default route to %pI6 table %d (redirect IP)", | |
3729 | announce ? "adding" : "withdrawing", | |
3730 | &nh->gate.ipv6, table_id); | |
3731 | ||
f7df1907 PG |
3732 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD |
3733 | : ZEBRA_ROUTE_DELETE, | |
3734 | zclient, &api); | |
3735 | } else if (nh->vrf_id != bgp->vrf_id) { | |
3736 | struct vrf *vrf; | |
eb4244f8 | 3737 | struct interface *ifp; |
f7df1907 | 3738 | |
eb4244f8 | 3739 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
3740 | if (!vrf) |
3741 | return; | |
eb4244f8 PG |
3742 | /* create default route with interface <VRF> |
3743 | * with nexthop-vrf <VRF> | |
f7df1907 | 3744 | */ |
de4f1a66 | 3745 | ifp = if_lookup_by_name_vrf(vrf->name, vrf); |
eb4244f8 PG |
3746 | if (!ifp) |
3747 | return; | |
3748 | api_nh->vrf_id = nh->vrf_id; | |
3749 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
3750 | api_nh->ifindex = ifp->ifindex; | |
3751 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3752 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
3753 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
3754 | vrf->name, table_id); |
3755 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3756 | : ZEBRA_ROUTE_DELETE, | |
3757 | zclient, &api); | |
f7df1907 PG |
3758 | return; |
3759 | } | |
3760 | } | |
85ef4179 | 3761 | |
3762 | /* Send capabilities to RIB */ | |
3763 | int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable) | |
3764 | { | |
3765 | struct zapi_cap api; | |
3766 | int ret = BGP_GR_SUCCESS; | |
3767 | ||
3768 | if (zclient == NULL) { | |
3769 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3770 | zlog_debug("zclient invalid"); | |
3771 | return BGP_GR_FAILURE; | |
3772 | } | |
3773 | ||
3774 | /* Check if the client is connected */ | |
3775 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3776 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3777 | zlog_debug("client not connected"); | |
3778 | return BGP_GR_FAILURE; | |
3779 | } | |
3780 | ||
3781 | /* Check if capability is already sent. If the flag force is set | |
3782 | * send the capability since this can be initial bgp configuration | |
3783 | */ | |
6006b807 | 3784 | memset(&api, 0, sizeof(api)); |
85ef4179 | 3785 | if (disable) { |
3786 | api.cap = ZEBRA_CLIENT_GR_DISABLE; | |
3787 | api.vrf_id = bgp->vrf_id; | |
3788 | } else { | |
3789 | api.cap = ZEBRA_CLIENT_GR_CAPABILITIES; | |
3790 | api.stale_removal_time = bgp->rib_stale_time; | |
3791 | api.vrf_id = bgp->vrf_id; | |
3792 | } | |
3793 | ||
36235319 | 3794 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3795 | == ZCLIENT_SEND_FAILURE) { |
2ba1fe69 | 3796 | zlog_err("error sending capability"); |
85ef4179 | 3797 | ret = BGP_GR_FAILURE; |
3798 | } else { | |
3799 | if (disable) | |
3800 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; | |
3801 | else | |
3802 | bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE; | |
3803 | ||
3804 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3805 | zlog_debug("send capabilty success"); | |
3806 | ret = BGP_GR_SUCCESS; | |
3807 | } | |
3808 | return ret; | |
3809 | } | |
3810 | ||
3811 | /* Send route update pesding or completed status to RIB for the | |
3812 | * specific AFI, SAFI | |
3813 | */ | |
3814 | int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type) | |
3815 | { | |
2ba1fe69 | 3816 | struct zapi_cap api = {0}; |
85ef4179 | 3817 | |
3818 | if (zclient == NULL) { | |
3819 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2ba1fe69 | 3820 | zlog_debug("zclient == NULL, invalid"); |
85ef4179 | 3821 | return BGP_GR_FAILURE; |
3822 | } | |
3823 | ||
3824 | /* Check if the client is connected */ | |
3825 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3826 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3827 | zlog_debug("client not connected"); | |
3828 | return BGP_GR_FAILURE; | |
3829 | } | |
3830 | ||
85ef4179 | 3831 | api.afi = afi; |
3832 | api.safi = safi; | |
3833 | api.vrf_id = vrf_id; | |
3834 | api.cap = type; | |
3835 | ||
36235319 | 3836 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3837 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3838 | if (BGP_DEBUG(zebra, ZEBRA)) |
3839 | zlog_debug("error sending capability"); | |
3840 | return BGP_GR_FAILURE; | |
3841 | } | |
3842 | return BGP_GR_SUCCESS; | |
3843 | } | |
3844 | ||
3845 | ||
85ef4179 | 3846 | /* Send RIB stale timer update */ |
3847 | int bgp_zebra_stale_timer_update(struct bgp *bgp) | |
3848 | { | |
3849 | struct zapi_cap api; | |
3850 | ||
3851 | if (zclient == NULL) { | |
3852 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3853 | zlog_debug("zclient invalid"); | |
3854 | return BGP_GR_FAILURE; | |
3855 | } | |
3856 | ||
3857 | /* Check if the client is connected */ | |
3858 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3859 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3860 | zlog_debug("client not connected"); | |
3861 | return BGP_GR_FAILURE; | |
3862 | } | |
3863 | ||
6006b807 | 3864 | memset(&api, 0, sizeof(api)); |
85ef4179 | 3865 | api.cap = ZEBRA_CLIENT_RIB_STALE_TIME; |
3866 | api.stale_removal_time = bgp->rib_stale_time; | |
3867 | api.vrf_id = bgp->vrf_id; | |
36235319 | 3868 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3869 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3870 | if (BGP_DEBUG(zebra, ZEBRA)) |
3871 | zlog_debug("error sending capability"); | |
3872 | return BGP_GR_FAILURE; | |
3873 | } | |
3874 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3875 | zlog_debug("send capabilty success"); | |
3876 | return BGP_GR_SUCCESS; | |
3877 | } | |
a0281b2e HS |
3878 | |
3879 | int bgp_zebra_srv6_manager_get_locator_chunk(const char *name) | |
3880 | { | |
3881 | return srv6_manager_get_locator_chunk(zclient, name); | |
3882 | } | |
0249b8b6 HS |
3883 | |
3884 | int bgp_zebra_srv6_manager_release_locator_chunk(const char *name) | |
3885 | { | |
3886 | return srv6_manager_release_locator_chunk(zclient, name); | |
3887 | } |