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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" | |
70cd87ca | 70 | #include "bgpd/bgp_orr.h" |
6b0655a2 | 71 | |
718e3744 | 72 | /* All information about zebra. */ |
228da428 | 73 | struct zclient *zclient = NULL; |
718e3744 | 74 | |
70cd87ca MK |
75 | static int bgp_opaque_msg_handler(ZAPI_CALLBACK_ARGS); |
76 | ||
0d020cd6 PR |
77 | /* hook to indicate vrf status change for SNMP */ |
78 | DEFINE_HOOK(bgp_vrf_status_changed, (struct bgp *bgp, struct interface *ifp), | |
8451921b | 79 | (bgp, ifp)); |
0d020cd6 | 80 | |
4cd690ae PG |
81 | DEFINE_MTYPE_STATIC(BGPD, BGP_IF_INFO, "BGP interface context"); |
82 | ||
ad4cbda1 | 83 | /* Can we install into zebra? */ |
3dc339cd | 84 | static inline bool bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 85 | { |
d62a17ae | 86 | if (zclient->sock <= 0) |
3dc339cd | 87 | return false; |
ad4cbda1 | 88 | |
bb4ef1ae | 89 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
15569c58 DA |
90 | zlog_debug( |
91 | "%s: No zebra instance to talk to, not installing information", | |
92 | __func__); | |
3dc339cd | 93 | return false; |
bb4ef1ae | 94 | } |
ad4cbda1 | 95 | |
3dc339cd | 96 | return true; |
ad4cbda1 | 97 | } |
98 | ||
afbb1c59 LB |
99 | int zclient_num_connects; |
100 | ||
18a6dce6 | 101 | /* Router-id update message from zebra. */ |
121f9dee | 102 | static int bgp_router_id_update(ZAPI_CALLBACK_ARGS) |
718e3744 | 103 | { |
d62a17ae | 104 | struct prefix router_id; |
718e3744 | 105 | |
d62a17ae | 106 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 107 | |
2dbe669b DA |
108 | if (BGP_DEBUG(zebra, ZEBRA)) |
109 | zlog_debug("Rx Router Id update VRF %u Id %pFX", vrf_id, | |
110 | &router_id); | |
a39275d7 | 111 | |
d62a17ae | 112 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
113 | return 0; | |
718e3744 | 114 | } |
115 | ||
fb018d25 | 116 | /* Nexthop update message from zebra. */ |
121f9dee | 117 | static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS) |
fb018d25 | 118 | { |
121f9dee | 119 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 120 | return 0; |
078430f6 DS |
121 | } |
122 | ||
4a04e5f7 | 123 | /* Set or clear interface on which unnumbered neighbor is configured. This |
124 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
125 | * interface. | |
126 | */ | |
d62a17ae | 127 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
128 | struct interface *upd_ifp) | |
4a04e5f7 | 129 | { |
d62a17ae | 130 | struct listnode *node, *nnode; |
131 | struct peer *peer; | |
132 | ||
133 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
134 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
135 | if (upd_ifp) { | |
136 | peer->ifp = upd_ifp; | |
137 | bgp_zebra_initiate_radv(bgp, peer); | |
138 | } else { | |
139 | bgp_zebra_terminate_radv(bgp, peer); | |
140 | peer->ifp = upd_ifp; | |
141 | } | |
142 | } | |
143 | } | |
4a04e5f7 | 144 | } |
145 | ||
a243d1db | 146 | static int bgp_read_fec_update(ZAPI_CALLBACK_ARGS) |
cd1964ff | 147 | { |
d62a17ae | 148 | bgp_parse_fec_update(); |
149 | return 0; | |
cd1964ff DS |
150 | } |
151 | ||
d62a17ae | 152 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 153 | { |
d62a17ae | 154 | struct listnode *node, *nnode; |
155 | struct peer *peer; | |
156 | ||
157 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
158 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
feb17238 | 159 | && !peer_established(peer)) { |
d62a17ae | 160 | if (peer_active(peer)) |
161 | BGP_EVENT_ADD(peer, BGP_Stop); | |
162 | BGP_EVENT_ADD(peer, BGP_Start); | |
163 | } | |
164 | } | |
a80beece DS |
165 | } |
166 | ||
d62a17ae | 167 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 168 | { |
d62a17ae | 169 | struct listnode *node; |
170 | struct connected *connected; | |
171 | struct interface *ifp; | |
172 | struct prefix *p; | |
173 | ||
174 | /* Kick-off the FSM for any relevant peers only if there is a | |
175 | * valid local address on the interface. | |
176 | */ | |
177 | ifp = ifc->ifp; | |
178 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
179 | p = connected->address; | |
180 | if (p->family == AF_INET6 | |
181 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
182 | break; | |
183 | } | |
184 | if (!connected) | |
185 | return; | |
186 | ||
187 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
188 | } |
189 | ||
d62a17ae | 190 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
191 | int del) | |
a80beece | 192 | { |
d62a17ae | 193 | struct listnode *node, *nnode; |
194 | struct peer *peer; | |
195 | struct interface *ifp; | |
196 | ||
197 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
198 | if (peer->conf_if | |
199 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
200 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
201 | BGP_EVENT_ADD(peer, BGP_Stop); | |
202 | } | |
203 | } | |
204 | /* Free neighbor also, if we're asked to. */ | |
205 | if (del) { | |
206 | ifp = ifc->ifp; | |
207 | listnode_delete(ifp->nbr_connected, ifc); | |
208 | nbr_connected_free(ifc); | |
209 | } | |
a80beece DS |
210 | } |
211 | ||
3c3c3252 | 212 | static int bgp_ifp_destroy(struct interface *ifp) |
718e3744 | 213 | { |
d62a17ae | 214 | struct bgp *bgp; |
718e3744 | 215 | |
096f7609 | 216 | bgp = ifp->vrf->info; |
a4499b83 | 217 | |
d62a17ae | 218 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
219 | zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf->vrf_id, |
220 | ifp->name); | |
a39275d7 | 221 | |
0d020cd6 | 222 | if (bgp) { |
85751d1d | 223 | bgp_update_interface_nbrs(bgp, ifp, NULL); |
0d020cd6 PR |
224 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
225 | } | |
64745052 | 226 | |
6a69ac51 DS |
227 | bgp_mac_del_mac_entry(ifp); |
228 | ||
d62a17ae | 229 | return 0; |
718e3744 | 230 | } |
231 | ||
ddbf3e60 | 232 | static int bgp_ifp_up(struct interface *ifp) |
718e3744 | 233 | { |
d62a17ae | 234 | struct connected *c; |
235 | struct nbr_connected *nc; | |
236 | struct listnode *node, *nnode; | |
237 | struct bgp *bgp; | |
6aeb9e78 | 238 | |
096f7609 | 239 | bgp = ifp->vrf->info; |
718e3744 | 240 | |
6a69ac51 DS |
241 | bgp_mac_add_mac_entry(ifp); |
242 | ||
d62a17ae | 243 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
244 | zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf->vrf_id, |
245 | ifp->name); | |
ad4cbda1 | 246 | |
85751d1d DS |
247 | if (!bgp) |
248 | return 0; | |
249 | ||
d62a17ae | 250 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
251 | bgp_connected_add(bgp, c); | |
718e3744 | 252 | |
d62a17ae | 253 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
254 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 255 | |
0d020cd6 | 256 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
8761cd6d DS |
257 | bgp_nht_ifp_up(ifp); |
258 | ||
d62a17ae | 259 | return 0; |
718e3744 | 260 | } |
261 | ||
b0b69e59 | 262 | static int bgp_ifp_down(struct interface *ifp) |
718e3744 | 263 | { |
d62a17ae | 264 | struct connected *c; |
265 | struct nbr_connected *nc; | |
266 | struct listnode *node, *nnode; | |
267 | struct bgp *bgp; | |
c19fe3c7 | 268 | struct peer *peer; |
6aeb9e78 | 269 | |
096f7609 | 270 | bgp = ifp->vrf->info; |
718e3744 | 271 | |
6a69ac51 DS |
272 | bgp_mac_del_mac_entry(ifp); |
273 | ||
d62a17ae | 274 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
275 | zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf->vrf_id, |
276 | ifp->name); | |
ad4cbda1 | 277 | |
85751d1d DS |
278 | if (!bgp) |
279 | return 0; | |
280 | ||
d62a17ae | 281 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
282 | bgp_connected_delete(bgp, c); | |
718e3744 | 283 | |
d62a17ae | 284 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
285 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 286 | |
d62a17ae | 287 | /* Fast external-failover */ |
c19fe3c7 | 288 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 289 | |
d62a17ae | 290 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
50bd8995 | 291 | /* Take down directly connected peers. */ |
c8d6f0d6 | 292 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 | 293 | && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED)) |
d62a17ae | 294 | continue; |
718e3744 | 295 | |
d62a17ae | 296 | if (ifp == peer->nexthop.ifp) { |
297 | BGP_EVENT_ADD(peer, BGP_Stop); | |
298 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
299 | } | |
300 | } | |
301 | } | |
718e3744 | 302 | |
0d020cd6 | 303 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
8761cd6d DS |
304 | bgp_nht_ifp_down(ifp); |
305 | ||
d62a17ae | 306 | return 0; |
718e3744 | 307 | } |
308 | ||
121f9dee | 309 | static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 310 | { |
d62a17ae | 311 | struct connected *ifc; |
2f9123e0 | 312 | struct bgp *bgp; |
bc6d1b15 P |
313 | struct peer *peer; |
314 | struct prefix *addr; | |
315 | struct listnode *node, *nnode; | |
316 | afi_t afi; | |
317 | safi_t safi; | |
2f9123e0 DS |
318 | |
319 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 320 | |
121f9dee | 321 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 322 | |
323 | if (ifc == NULL) | |
324 | return 0; | |
325 | ||
2dbe669b DA |
326 | if (bgp_debug_zebra(ifc->address)) |
327 | zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id, | |
328 | ifc->ifp->name, ifc->address); | |
d62a17ae | 329 | |
85751d1d DS |
330 | if (!bgp) |
331 | return 0; | |
332 | ||
d62a17ae | 333 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 334 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 335 | |
d62a17ae | 336 | /* If we have learnt of any neighbors on this interface, |
337 | * check to kick off any BGP interface-based neighbors, | |
338 | * but only if this is a link-local address. | |
339 | */ | |
340 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
341 | && !list_isempty(ifc->ifp->nbr_connected)) | |
342 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
bc6d1b15 P |
343 | else { |
344 | addr = ifc->address; | |
345 | ||
346 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
347 | if (addr->family == AF_INET) | |
348 | continue; | |
349 | ||
350 | /* | |
351 | * If the Peer's interface name matches the | |
352 | * interface name for which BGP received the | |
353 | * update and if the received interface address | |
354 | * is a globalV6 and if the peer is currently | |
355 | * using a v4-mapped-v6 addr or a link local | |
356 | * address, then copy the Rxed global v6 addr | |
357 | * into peer's v6_global and send updates out | |
358 | * with new nexthop addr. | |
359 | */ | |
360 | if ((peer->conf_if && | |
361 | (strcmp(peer->conf_if, ifc->ifp->name) == | |
362 | 0)) && | |
363 | !IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6) && | |
364 | ((IS_MAPPED_IPV6( | |
365 | &peer->nexthop.v6_global)) || | |
366 | IN6_IS_ADDR_LINKLOCAL( | |
367 | &peer->nexthop.v6_global))) { | |
368 | ||
369 | if (bgp_debug_zebra(ifc->address)) { | |
370 | zlog_debug( | |
371 | "Update peer %pBP's current intf addr %pI6 and send updates", | |
372 | peer, | |
373 | &peer->nexthop | |
374 | .v6_global); | |
375 | } | |
376 | memcpy(&peer->nexthop.v6_global, | |
377 | &addr->u.prefix6, | |
378 | IPV6_MAX_BYTELEN); | |
379 | FOREACH_AFI_SAFI (afi, safi) | |
380 | bgp_announce_route(peer, afi, | |
381 | safi, true); | |
382 | } | |
383 | } | |
384 | } | |
d62a17ae | 385 | } |
386 | ||
387 | return 0; | |
718e3744 | 388 | } |
389 | ||
121f9dee | 390 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 391 | { |
f3d20a2a | 392 | struct listnode *node, *nnode; |
d62a17ae | 393 | struct connected *ifc; |
f3d20a2a | 394 | struct peer *peer; |
d62a17ae | 395 | struct bgp *bgp; |
f3d20a2a | 396 | struct prefix *addr; |
6aeb9e78 | 397 | |
2f9123e0 | 398 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 399 | |
121f9dee | 400 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 401 | |
d62a17ae | 402 | if (ifc == NULL) |
403 | return 0; | |
718e3744 | 404 | |
2dbe669b DA |
405 | if (bgp_debug_zebra(ifc->address)) |
406 | zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id, | |
407 | ifc->ifp->name, ifc->address); | |
a39275d7 | 408 | |
85751d1d | 409 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 410 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 411 | } |
718e3744 | 412 | |
f3d20a2a DS |
413 | addr = ifc->address; |
414 | ||
415 | if (bgp) { | |
416 | /* | |
417 | * When we are using the v6 global as part of the peering | |
418 | * nexthops and we are removing it, then we need to | |
419 | * clear the peer data saved for that nexthop and | |
420 | * cause a re-announcement of the route. Since | |
421 | * we do not want the peering to bounce. | |
422 | */ | |
423 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
424 | afi_t afi; | |
425 | safi_t safi; | |
426 | ||
427 | if (addr->family == AF_INET) | |
428 | continue; | |
429 | ||
430 | if (!IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6) | |
431 | && memcmp(&peer->nexthop.v6_global, | |
432 | &addr->u.prefix6, 16) | |
433 | == 0) { | |
434 | memset(&peer->nexthop.v6_global, 0, 16); | |
435 | FOREACH_AFI_SAFI (afi, safi) | |
436 | bgp_announce_route(peer, afi, safi, | |
437 | true); | |
438 | } | |
439 | } | |
440 | } | |
441 | ||
721c0857 | 442 | connected_free(&ifc); |
718e3744 | 443 | |
d62a17ae | 444 | return 0; |
718e3744 | 445 | } |
446 | ||
121f9dee | 447 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 448 | { |
d62a17ae | 449 | struct nbr_connected *ifc = NULL; |
450 | struct bgp *bgp; | |
451 | ||
121f9dee | 452 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 453 | |
454 | if (ifc == NULL) | |
455 | return 0; | |
456 | ||
2dbe669b DA |
457 | if (bgp_debug_zebra(ifc->address)) |
458 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX", | |
459 | vrf_id, ifc->ifp->name, ifc->address); | |
d62a17ae | 460 | |
461 | if (if_is_operative(ifc->ifp)) { | |
462 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
463 | if (bgp) | |
464 | bgp_nbr_connected_add(bgp, ifc); | |
465 | } | |
466 | ||
467 | return 0; | |
a80beece DS |
468 | } |
469 | ||
121f9dee | 470 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 471 | { |
d62a17ae | 472 | struct nbr_connected *ifc = NULL; |
473 | struct bgp *bgp; | |
6aeb9e78 | 474 | |
121f9dee | 475 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 476 | |
d62a17ae | 477 | if (ifc == NULL) |
478 | return 0; | |
a80beece | 479 | |
2dbe669b DA |
480 | if (bgp_debug_zebra(ifc->address)) |
481 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX", | |
482 | vrf_id, ifc->ifp->name, ifc->address); | |
a80beece | 483 | |
d62a17ae | 484 | if (if_is_operative(ifc->ifp)) { |
485 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
486 | if (bgp) | |
487 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
488 | } | |
a80beece | 489 | |
d62a17ae | 490 | nbr_connected_free(ifc); |
a80beece | 491 | |
d62a17ae | 492 | return 0; |
a80beece DS |
493 | } |
494 | ||
bfcd43b2 | 495 | /* VRF update for an interface. */ |
121f9dee | 496 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 497 | { |
d62a17ae | 498 | struct interface *ifp; |
499 | vrf_id_t new_vrf_id; | |
500 | struct connected *c; | |
501 | struct nbr_connected *nc; | |
502 | struct listnode *node, *nnode; | |
503 | struct bgp *bgp; | |
c19fe3c7 | 504 | struct peer *peer; |
bfcd43b2 | 505 | |
d62a17ae | 506 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
507 | &new_vrf_id); | |
508 | if (!ifp) | |
509 | return 0; | |
bfcd43b2 | 510 | |
253b7158 | 511 | if (BGP_DEBUG(zebra, ZEBRA)) |
d62a17ae | 512 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, |
513 | ifp->name, new_vrf_id); | |
bfcd43b2 | 514 | |
d62a17ae | 515 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 516 | |
85751d1d DS |
517 | if (bgp) { |
518 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
519 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 520 | |
85751d1d DS |
521 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
522 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 523 | |
85751d1d DS |
524 | /* Fast external-failover */ |
525 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
526 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
c8d6f0d6 | 527 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 DA |
528 | && (peer->gtsm_hops |
529 | != BGP_GTSM_HOPS_CONNECTED)) | |
85751d1d | 530 | continue; |
bfcd43b2 | 531 | |
85751d1d DS |
532 | if (ifp == peer->nexthop.ifp) |
533 | BGP_EVENT_ADD(peer, BGP_Stop); | |
534 | } | |
d62a17ae | 535 | } |
536 | } | |
bfcd43b2 | 537 | |
a36898e7 | 538 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 539 | |
d62a17ae | 540 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
541 | if (!bgp) | |
542 | return 0; | |
bfcd43b2 | 543 | |
d62a17ae | 544 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
545 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 546 | |
d62a17ae | 547 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
548 | bgp_nbr_connected_add(bgp, nc); | |
0d020cd6 PR |
549 | |
550 | hook_call(bgp_vrf_status_changed, bgp, ifp); | |
d62a17ae | 551 | return 0; |
bfcd43b2 | 552 | } |
553 | ||
718e3744 | 554 | /* Zebra route add and delete treatment. */ |
121f9dee | 555 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 556 | { |
9de1f7ff | 557 | enum nexthop_types_t nhtype; |
0789eb69 | 558 | enum blackhole_type bhtype = BLACKHOLE_UNSPEC; |
74489921 | 559 | struct zapi_route api; |
0789eb69 | 560 | union g_addr nexthop = {}; |
9de1f7ff | 561 | ifindex_t ifindex; |
74489921 | 562 | int add, i; |
d62a17ae | 563 | struct bgp *bgp; |
564 | ||
565 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
566 | if (!bgp) | |
567 | return 0; | |
568 | ||
74489921 RW |
569 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
570 | return -1; | |
d62a17ae | 571 | |
74489921 RW |
572 | /* we completely ignore srcdest routes for now. */ |
573 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
574 | return 0; | |
d62a17ae | 575 | |
74489921 RW |
576 | /* ignore link-local address. */ |
577 | if (api.prefix.family == AF_INET6 | |
578 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
579 | return 0; | |
d62a17ae | 580 | |
74489921 | 581 | ifindex = api.nexthops[0].ifindex; |
9de1f7ff | 582 | nhtype = api.nexthops[0].type; |
d62a17ae | 583 | |
0789eb69 KM |
584 | /* api_nh structure has union of gate and bh_type */ |
585 | if (nhtype == NEXTHOP_TYPE_BLACKHOLE) { | |
586 | /* bh_type is only applicable if NEXTHOP_TYPE_BLACKHOLE*/ | |
587 | bhtype = api.nexthops[0].bh_type; | |
588 | } else | |
589 | nexthop = api.nexthops[0].gate; | |
590 | ||
121f9dee | 591 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 592 | if (add) { |
d62a17ae | 593 | /* |
594 | * The ADD message is actually an UPDATE and there is no | |
595 | * explicit DEL | |
596 | * for a prior redistributed route, if any. So, perform an | |
597 | * implicit | |
598 | * DEL processing for the same redistributed route from any | |
599 | * other | |
600 | * source type. | |
601 | */ | |
602 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
603 | if (i != api.type) | |
74489921 | 604 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 605 | api.instance); |
606 | } | |
607 | ||
608 | /* Now perform the add/update. */ | |
74489921 | 609 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
0789eb69 KM |
610 | nhtype, bhtype, api.distance, api.metric, |
611 | api.type, api.instance, api.tag); | |
d62a17ae | 612 | } else { |
74489921 RW |
613 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
614 | api.instance); | |
a39275d7 | 615 | } |
d62a17ae | 616 | |
74489921 | 617 | if (bgp_debug_zebra(&api.prefix)) { |
2dbe669b | 618 | char buf[PREFIX_STRLEN]; |
74489921 | 619 | |
77e62f2b | 620 | if (add) { |
2dbe669b DA |
621 | inet_ntop(api.prefix.family, &nexthop, buf, |
622 | sizeof(buf)); | |
77e62f2b | 623 | zlog_debug( |
801bb996 | 624 | "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI, |
77e62f2b | 625 | vrf_id, zebra_route_string(api.type), |
2dbe669b | 626 | api.instance, &api.prefix, buf, nhtype, ifindex, |
801bb996 | 627 | api.metric, api.distance, api.tag); |
77e62f2b | 628 | } else { |
6bdbcbf1 | 629 | zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id, |
2dbe669b | 630 | zebra_route_string(api.type), api.instance, |
6bdbcbf1 | 631 | &api.prefix); |
77e62f2b | 632 | } |
d62a17ae | 633 | } |
634 | ||
635 | return 0; | |
718e3744 | 636 | } |
6b0655a2 | 637 | |
d62a17ae | 638 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 639 | { |
f4e14fdb | 640 | struct vrf *vrf; |
d62a17ae | 641 | struct listnode *cnode; |
642 | struct interface *ifp; | |
643 | struct connected *connected; | |
644 | struct prefix_ipv4 p; | |
645 | struct prefix *cp; | |
646 | ||
f4e14fdb RW |
647 | vrf = vrf_lookup_by_id(vrf_id); |
648 | if (!vrf) | |
649 | return NULL; | |
650 | ||
d62a17ae | 651 | p.family = AF_INET; |
652 | p.prefix = *addr; | |
653 | p.prefixlen = IPV4_MAX_BITLEN; | |
654 | ||
451fda4f | 655 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 656 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
657 | cp = connected->address; | |
658 | ||
659 | if (cp->family == AF_INET) | |
660 | if (prefix_match(cp, (struct prefix *)&p)) | |
661 | return ifp; | |
662 | } | |
718e3744 | 663 | } |
d62a17ae | 664 | return NULL; |
718e3744 | 665 | } |
666 | ||
d62a17ae | 667 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 668 | { |
f4e14fdb | 669 | struct vrf *vrf; |
d62a17ae | 670 | struct listnode *cnode; |
671 | struct interface *ifp; | |
672 | struct connected *connected; | |
673 | struct prefix *cp; | |
674 | ||
f4e14fdb RW |
675 | vrf = vrf_lookup_by_id(vrf_id); |
676 | if (!vrf) | |
677 | return NULL; | |
678 | ||
451fda4f | 679 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 680 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
681 | cp = connected->address; | |
682 | ||
683 | if (cp->family == AF_INET) | |
684 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
685 | return ifp; | |
686 | } | |
718e3744 | 687 | } |
d62a17ae | 688 | return NULL; |
718e3744 | 689 | } |
690 | ||
d62a17ae | 691 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
692 | vrf_id_t vrf_id) | |
718e3744 | 693 | { |
f4e14fdb | 694 | struct vrf *vrf; |
d62a17ae | 695 | struct listnode *cnode; |
696 | struct interface *ifp; | |
697 | struct connected *connected; | |
698 | struct prefix_ipv6 p; | |
699 | struct prefix *cp; | |
700 | ||
f4e14fdb RW |
701 | vrf = vrf_lookup_by_id(vrf_id); |
702 | if (!vrf) | |
703 | return NULL; | |
704 | ||
d62a17ae | 705 | p.family = AF_INET6; |
706 | p.prefix = *addr; | |
707 | p.prefixlen = IPV6_MAX_BITLEN; | |
708 | ||
451fda4f | 709 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 710 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
711 | cp = connected->address; | |
712 | ||
713 | if (cp->family == AF_INET6) | |
714 | if (prefix_match(cp, (struct prefix *)&p)) { | |
715 | if (IN6_IS_ADDR_LINKLOCAL( | |
716 | &cp->u.prefix6)) { | |
717 | if (ifindex == ifp->ifindex) | |
718 | return ifp; | |
719 | } else | |
720 | return ifp; | |
721 | } | |
722 | } | |
718e3744 | 723 | } |
d62a17ae | 724 | return NULL; |
718e3744 | 725 | } |
726 | ||
d62a17ae | 727 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
728 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 729 | { |
f4e14fdb | 730 | struct vrf *vrf; |
d62a17ae | 731 | struct listnode *cnode; |
732 | struct interface *ifp; | |
733 | struct connected *connected; | |
734 | struct prefix *cp; | |
735 | ||
f4e14fdb RW |
736 | vrf = vrf_lookup_by_id(vrf_id); |
737 | if (!vrf) | |
738 | return NULL; | |
739 | ||
451fda4f | 740 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 741 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
742 | cp = connected->address; | |
743 | ||
744 | if (cp->family == AF_INET6) | |
745 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
746 | if (IN6_IS_ADDR_LINKLOCAL( | |
747 | &cp->u.prefix6)) { | |
748 | if (ifindex == ifp->ifindex) | |
749 | return ifp; | |
750 | } else | |
751 | return ifp; | |
752 | } | |
753 | } | |
718e3744 | 754 | } |
d62a17ae | 755 | return NULL; |
718e3744 | 756 | } |
757 | ||
d62a17ae | 758 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 759 | { |
d62a17ae | 760 | struct listnode *cnode; |
761 | struct connected *connected; | |
762 | struct prefix *cp; | |
763 | ||
764 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
765 | cp = connected->address; | |
766 | ||
767 | if (cp->family == AF_INET6) | |
768 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
769 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
770 | return 1; | |
771 | } | |
772 | } | |
773 | return 0; | |
718e3744 | 774 | } |
775 | ||
dac42f2e | 776 | static bool if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 777 | { |
d62a17ae | 778 | struct listnode *cnode; |
779 | struct connected *connected; | |
780 | struct prefix *cp; | |
781 | ||
782 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
783 | cp = connected->address; | |
784 | ||
785 | if (cp->family == AF_INET6) | |
786 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
787 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
dac42f2e | 788 | return true; |
d62a17ae | 789 | } |
790 | } | |
dac42f2e | 791 | return false; |
718e3744 | 792 | } |
718e3744 | 793 | |
d62a17ae | 794 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 795 | { |
d62a17ae | 796 | struct listnode *cnode; |
797 | struct connected *connected; | |
798 | struct prefix *cp; | |
799 | ||
800 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
801 | cp = connected->address; | |
802 | if ((cp->family == AF_INET) | |
803 | && !ipv4_martian(&(cp->u.prefix4))) { | |
804 | *addr = cp->u.prefix4; | |
805 | return 1; | |
806 | } | |
807 | } | |
808 | return 0; | |
6ee06fa9 PM |
809 | } |
810 | ||
17cdd31e DS |
811 | |
812 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
813 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 814 | { |
d62a17ae | 815 | int ret = 0; |
816 | struct interface *ifp = NULL; | |
dac42f2e | 817 | bool v6_ll_avail = true; |
d62a17ae | 818 | |
819 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
820 | ||
821 | if (!local) | |
17cdd31e | 822 | return false; |
d62a17ae | 823 | if (!remote) |
17cdd31e | 824 | return false; |
d62a17ae | 825 | |
826 | if (local->sa.sa_family == AF_INET) { | |
827 | nexthop->v4 = local->sin.sin_addr; | |
828 | if (peer->update_if) | |
829 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 830 | peer->bgp->vrf_id); |
d62a17ae | 831 | else |
832 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
833 | peer->bgp->vrf_id); | |
718e3744 | 834 | } |
d62a17ae | 835 | if (local->sa.sa_family == AF_INET6) { |
8f2b2139 | 836 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN); |
d62a17ae | 837 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { |
838 | if (peer->conf_if || peer->ifname) | |
839 | ifp = if_lookup_by_name(peer->conf_if | |
840 | ? peer->conf_if | |
841 | : peer->ifname, | |
a36898e7 | 842 | peer->bgp->vrf_id); |
abe68054 PG |
843 | else if (peer->update_if) |
844 | ifp = if_lookup_by_name(peer->update_if, | |
845 | peer->bgp->vrf_id); | |
d62a17ae | 846 | } else if (peer->update_if) |
847 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 848 | peer->bgp->vrf_id); |
d62a17ae | 849 | else |
850 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
851 | local->sin6.sin6_scope_id, | |
852 | peer->bgp->vrf_id); | |
718e3744 | 853 | } |
d62a17ae | 854 | |
17cdd31e DS |
855 | if (!ifp) { |
856 | /* | |
857 | * BGP views do not currently get proper data | |
858 | * from zebra( when attached ) to be able to | |
859 | * properly resolve nexthops, so give this | |
860 | * instance type a pass. | |
861 | */ | |
862 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
863 | return true; | |
864 | /* | |
865 | * If we have no interface data but we have established | |
866 | * some connection w/ zebra than something has gone | |
867 | * terribly terribly wrong here, so say this failed | |
868 | * If we do not any zebra connection then not | |
869 | * having a ifp pointer is ok. | |
870 | */ | |
871 | return zclient_num_connects ? false : true; | |
872 | } | |
d62a17ae | 873 | |
874 | nexthop->ifp = ifp; | |
875 | ||
876 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
877 | if (local->sa.sa_family == AF_INET) { | |
878 | /* IPv6 nexthop*/ | |
879 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
880 | ||
881 | if (!ret) { | |
882 | /* There is no global nexthop. Use link-local address as | |
883 | * both the | |
884 | * global and link-local nexthop. In this scenario, the | |
885 | * expectation | |
886 | * for interop is that the network admin would use a | |
887 | * route-map to | |
888 | * specify the global IPv6 nexthop. | |
889 | */ | |
dac42f2e DS |
890 | v6_ll_avail = |
891 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
d62a17ae | 892 | memcpy(&nexthop->v6_local, &nexthop->v6_global, |
893 | IPV6_MAX_BYTELEN); | |
894 | } else | |
dac42f2e DS |
895 | v6_ll_avail = |
896 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
d62a17ae | 897 | |
dac42f2e DS |
898 | /* |
899 | * If we are a v4 connection and we are not doing unnumbered | |
900 | * not having a v6 LL address is ok | |
901 | */ | |
902 | if (!v6_ll_avail && !peer->conf_if) | |
903 | v6_ll_avail = true; | |
d62a17ae | 904 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) |
905 | peer->shared_network = 1; | |
906 | else | |
907 | peer->shared_network = 0; | |
718e3744 | 908 | } |
718e3744 | 909 | |
d62a17ae | 910 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
911 | if (local->sa.sa_family == AF_INET6) { | |
912 | struct interface *direct = NULL; | |
913 | ||
914 | /* IPv4 nexthop. */ | |
915 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
975a328e | 916 | if (!ret && peer->local_id.s_addr != INADDR_ANY) |
d62a17ae | 917 | nexthop->v4 = peer->local_id; |
918 | ||
919 | /* Global address*/ | |
920 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
921 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
922 | IPV6_MAX_BYTELEN); | |
923 | ||
382c3b08 | 924 | /* If directly connected set link-local address. */ |
d62a17ae | 925 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, |
926 | remote->sin6.sin6_scope_id, | |
927 | peer->bgp->vrf_id); | |
928 | if (direct) | |
dac42f2e DS |
929 | v6_ll_avail = if_get_ipv6_local( |
930 | ifp, &nexthop->v6_local); | |
2ebb354c IR |
931 | /* |
932 | * It's fine to not have a v6 LL when using | |
933 | * update-source loopback/vrf | |
934 | */ | |
608c8870 | 935 | if (!v6_ll_avail && if_is_loopback(ifp)) |
2ebb354c | 936 | v6_ll_avail = true; |
382c3b08 | 937 | else if (!v6_ll_avail) { |
75ba864c DS |
938 | flog_warn( |
939 | EC_BGP_NO_LL_ADDRESS_AVAILABLE, | |
940 | "Interface: %s does not have a v6 LL address associated with it, waiting until one is created for it", | |
941 | ifp->name); | |
942 | } | |
d62a17ae | 943 | } else |
944 | /* Link-local address. */ | |
945 | { | |
946 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
947 | ||
948 | /* If there is no global address. Set link-local | |
949 | address as | |
950 | global. I know this break RFC specification... */ | |
951 | /* In this scenario, the expectation for interop is that | |
952 | * the | |
953 | * network admin would use a route-map to specify the | |
954 | * global | |
955 | * IPv6 nexthop. | |
956 | */ | |
957 | if (!ret) | |
958 | memcpy(&nexthop->v6_global, | |
959 | &local->sin6.sin6_addr, | |
960 | IPV6_MAX_BYTELEN); | |
961 | /* Always set the link-local address */ | |
962 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
963 | IPV6_MAX_BYTELEN); | |
964 | } | |
965 | ||
966 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
967 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
968 | remote->sin6.sin6_scope_id, | |
969 | peer->bgp->vrf_id)) | |
970 | peer->shared_network = 1; | |
971 | else | |
972 | peer->shared_network = 0; | |
973 | } | |
718e3744 | 974 | |
d62a17ae | 975 | /* KAME stack specific treatment. */ |
718e3744 | 976 | #ifdef KAME |
d62a17ae | 977 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
978 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
979 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
980 | } | |
981 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
982 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
983 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
984 | } | |
718e3744 | 985 | #endif /* KAME */ |
e33a4880 | 986 | |
d62a17ae | 987 | /* If we have identified the local interface, there is no error for now. |
988 | */ | |
dac42f2e | 989 | return v6_ll_avail; |
718e3744 | 990 | } |
991 | ||
18ee8310 | 992 | static struct in6_addr * |
40381db7 | 993 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 994 | { |
d62a17ae | 995 | struct in6_addr *nexthop = NULL; |
996 | ||
997 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
998 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
999 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 1000 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 1001 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1002 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 1003 | } |
d62a17ae | 1004 | |
1005 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
1006 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
1007 | || path->attr->mp_nexthop_len | |
1008 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 1009 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
1010 | if (path->attr->mp_nexthop_prefer_global) { |
1011 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 1012 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1013 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 1014 | } else { |
d62a17ae | 1015 | /* Workaround for Cisco's nexthop bug. */ |
1016 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 | 1017 | &path->attr->mp_nexthop_global) |
ab0e0f73 | 1018 | && path->peer->su_remote |
40381db7 | 1019 | && path->peer->su_remote->sa.sa_family |
59a0f1cb | 1020 | == AF_INET6) { |
d62a17ae | 1021 | nexthop = |
40381db7 | 1022 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 1023 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1024 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 1025 | ->ifindex; |
77e62f2b | 1026 | } else { |
40381db7 | 1027 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 1028 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1029 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 1030 | } |
d62a17ae | 1031 | } |
1032 | } | |
1033 | ||
1034 | return nexthop; | |
73ac8160 DS |
1035 | } |
1036 | ||
b8685f9b | 1037 | static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p, |
3dc339cd | 1038 | struct bgp_path_info *path) |
73ac8160 | 1039 | { |
b4cb15c6 DL |
1040 | route_map_result_t ret; |
1041 | ||
1782514f | 1042 | ret = route_map_apply(map, p, path); |
40381db7 | 1043 | bgp_attr_flush(path->attr); |
b4cb15c6 DL |
1044 | |
1045 | if (ret != RMAP_DENYMATCH) | |
3dc339cd | 1046 | return true; |
d62a17ae | 1047 | |
1048 | if (bgp_debug_zebra(p)) { | |
1049 | if (p->family == AF_INET) { | |
d62a17ae | 1050 | zlog_debug( |
c0d72166 DS |
1051 | "Zebra rmap deny: IPv4 route %pFX nexthop %pI4", |
1052 | p, &path->attr->nexthop); | |
d62a17ae | 1053 | } |
1054 | if (p->family == AF_INET6) { | |
77e62f2b | 1055 | ifindex_t ifindex; |
1056 | struct in6_addr *nexthop; | |
1057 | ||
40381db7 | 1058 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 1059 | zlog_debug( |
7b6cee89 DS |
1060 | "Zebra rmap deny: IPv6 route %pFX nexthop %pI6", |
1061 | p, nexthop); | |
d62a17ae | 1062 | } |
1063 | } | |
3dc339cd | 1064 | return false; |
73ac8160 DS |
1065 | } |
1066 | ||
b98f7728 PG |
1067 | static struct thread *bgp_tm_thread_connect; |
1068 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
1069 | static bool bgp_tm_chunk_obtained; |
1070 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
1071 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 1072 | struct bgp *bgp_tm_bgp; |
b98f7728 | 1073 | |
cc9f21da | 1074 | static void bgp_zebra_tm_connect(struct thread *t) |
b98f7728 PG |
1075 | { |
1076 | struct zclient *zclient; | |
1077 | int delay = 10, ret = 0; | |
1078 | ||
1079 | zclient = THREAD_ARG(t); | |
1080 | if (bgp_tm_status_connected && zclient->sock > 0) | |
1081 | delay = 60; | |
1082 | else { | |
1083 | bgp_tm_status_connected = false; | |
1084 | ret = tm_table_manager_connect(zclient); | |
1085 | } | |
1086 | if (ret < 0) { | |
b7cd3069 | 1087 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
1088 | bgp_tm_status_connected = false; |
1089 | } else { | |
1090 | if (!bgp_tm_status_connected) | |
1091 | zlog_debug("Connecting to table manager. Success"); | |
1092 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
1093 | if (!bgp_tm_chunk_obtained) { |
1094 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
1095 | &bgp_tm_min, | |
6818e7e5 | 1096 | &bgp_tm_max) >= 0) { |
31c28cd7 | 1097 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1098 | /* parse non installed entries */ |
1099 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1100 | } | |
31c28cd7 | 1101 | } |
b98f7728 PG |
1102 | } |
1103 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1104 | &bgp_tm_thread_connect); | |
b98f7728 PG |
1105 | } |
1106 | ||
6818e7e5 PG |
1107 | bool bgp_zebra_tm_chunk_obtained(void) |
1108 | { | |
1109 | return bgp_tm_chunk_obtained; | |
1110 | } | |
1111 | ||
31c28cd7 PG |
1112 | uint32_t bgp_zebra_tm_get_id(void) |
1113 | { | |
1114 | static int table_id; | |
1115 | ||
1116 | if (!bgp_tm_chunk_obtained) | |
1117 | return ++table_id; | |
1118 | return bgp_tm_min++; | |
1119 | } | |
1120 | ||
6818e7e5 | 1121 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1122 | { |
1123 | int delay = 1; | |
1124 | ||
1125 | /* if already set, do nothing | |
1126 | */ | |
1127 | if (bgp_tm_thread_connect != NULL) | |
1128 | return; | |
1129 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1130 | bgp_tm_chunk_obtained = false; |
1131 | bgp_tm_min = bgp_tm_max = 0; | |
1132 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1133 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1134 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1135 | &bgp_tm_thread_connect); | |
1136 | } | |
1137 | ||
1138 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1139 | uint32_t *start, uint32_t *end) | |
1140 | { | |
1141 | int ret; | |
1142 | ||
1143 | if (!bgp_tm_status_connected) | |
1144 | return -1; | |
1145 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1146 | if (ret < 0) { | |
e50f7cfd | 1147 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1148 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1149 | return -1; |
1150 | } | |
1151 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1152 | chunk_size, *start, *end); | |
1153 | return 0; | |
1154 | } | |
1155 | ||
3dc339cd DA |
1156 | static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1157 | struct in_addr *nexthop, | |
1158 | struct attr *attr, bool is_evpn, | |
1159 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1160 | { |
1161 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1162 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1163 | |
1164 | /* Need to set fields appropriately for EVPN routes imported into | |
1165 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1166 | * connected routes leaked into a VRF. | |
1167 | */ | |
0789eb69 KM |
1168 | if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) { |
1169 | api_nh->type = attr->nh_type; | |
1170 | api_nh->bh_type = attr->bh_type; | |
1171 | } else if (is_evpn) { | |
a2299aba AD |
1172 | /* |
1173 | * If the nexthop is EVPN overlay index gateway IP, | |
1174 | * treat the nexthop as NEXTHOP_TYPE_IPV4 | |
1175 | * Else, mark the nexthop as onlink. | |
1176 | */ | |
1177 | if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP) | |
1178 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1179 | else { | |
1180 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
5609e70f | 1181 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
a2299aba AD |
1182 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
1183 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; | |
1184 | } | |
0789eb69 | 1185 | } else if (nh_othervrf && api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
77e62f2b | 1186 | api_nh->type = NEXTHOP_TYPE_IFINDEX; |
1187 | api_nh->ifindex = attr->nh_ifindex; | |
1188 | } else | |
1189 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1190 | ||
3dc339cd | 1191 | return true; |
77e62f2b | 1192 | } |
1193 | ||
3dc339cd DA |
1194 | static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1195 | struct in6_addr *nexthop, | |
1196 | ifindex_t ifindex, | |
1197 | struct bgp_path_info *pi, | |
1198 | struct bgp_path_info *best_pi, | |
1199 | bool is_evpn, | |
1200 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1201 | { |
1202 | struct attr *attr; | |
1203 | ||
40381db7 | 1204 | attr = pi->attr; |
e1e71450 | 1205 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1206 | |
0789eb69 KM |
1207 | if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) { |
1208 | api_nh->type = attr->nh_type; | |
1209 | api_nh->bh_type = attr->bh_type; | |
1210 | } else if (is_evpn) { | |
a2299aba AD |
1211 | /* |
1212 | * If the nexthop is EVPN overlay index gateway IP, | |
1213 | * treat the nexthop as NEXTHOP_TYPE_IPV4 | |
1214 | * Else, mark the nexthop as onlink. | |
1215 | */ | |
1216 | if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP) | |
1217 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1218 | else { | |
1219 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
5609e70f | 1220 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
a2299aba AD |
1221 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
1222 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; | |
1223 | } | |
e1e71450 | 1224 | } else if (nh_othervrf) { |
77e62f2b | 1225 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1226 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1227 | api_nh->ifindex = attr->nh_ifindex; | |
1228 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1229 | if (ifindex == 0) | |
3dc339cd | 1230 | return false; |
77e62f2b | 1231 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1232 | api_nh->ifindex = ifindex; | |
1233 | } else { | |
1234 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1235 | api_nh->ifindex = 0; | |
1236 | } | |
1237 | } else { | |
1238 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1239 | if (pi == best_pi |
1240 | && attr->mp_nexthop_len | |
1241 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1242 | if (pi->peer->nexthop.ifp) | |
1243 | ifindex = | |
1244 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1245 | if (!ifindex) { |
40381db7 DS |
1246 | if (pi->peer->conf_if) |
1247 | ifindex = pi->peer->ifp->ifindex; | |
1248 | else if (pi->peer->ifname) | |
77e62f2b | 1249 | ifindex = ifname2ifindex( |
40381db7 DS |
1250 | pi->peer->ifname, |
1251 | pi->peer->bgp->vrf_id); | |
1252 | else if (pi->peer->nexthop.ifp) | |
1253 | ifindex = | |
1254 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1255 | } |
1256 | ||
1257 | if (ifindex == 0) | |
3dc339cd | 1258 | return false; |
77e62f2b | 1259 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1260 | api_nh->ifindex = ifindex; | |
1261 | } else { | |
1262 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1263 | api_nh->ifindex = 0; | |
1264 | } | |
1265 | } | |
0789eb69 KM |
1266 | /* api_nh structure has union of gate and bh_type */ |
1267 | if (nexthop && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) | |
c2ca3e25 | 1268 | api_nh->gate.ipv6 = *nexthop; |
77e62f2b | 1269 | |
3dc339cd | 1270 | return true; |
77e62f2b | 1271 | } |
1272 | ||
f7e1c681 | 1273 | static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr, |
1274 | uint64_t tot_bw, uint32_t *nh_weight) | |
4e30bc2b | 1275 | { |
f7e1c681 | 1276 | uint32_t bw; |
1277 | uint64_t tmp; | |
1278 | ||
1279 | bw = attr->link_bw; | |
1280 | /* zero link-bandwidth and link-bandwidth not present are treated | |
1281 | * as the same situation. | |
1282 | */ | |
1283 | if (!bw) { | |
1284 | /* the only situations should be if we're either told | |
1285 | * to skip or use default weight. | |
1286 | */ | |
1287 | if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING) | |
1288 | return false; | |
1289 | *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT; | |
1290 | } else { | |
1291 | tmp = (uint64_t)bw * 100; | |
1292 | *nh_weight = ((uint32_t)(tmp / tot_bw)); | |
1293 | } | |
1294 | ||
1295 | return true; | |
4e30bc2b | 1296 | } |
1297 | ||
9bcb3eef | 1298 | void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p, |
4b7e6066 | 1299 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1300 | safi_t safi) |
718e3744 | 1301 | { |
7cc27d41 | 1302 | struct zapi_route api = { 0 }; |
9913029c | 1303 | struct zapi_nexthop *api_nh; |
2ad4f093 | 1304 | int nh_family; |
a74e593b | 1305 | unsigned int valid_nh_count = 0; |
1a9cb083 | 1306 | bool allow_recursion = false; |
d7c0a89a | 1307 | uint8_t distance; |
d62a17ae | 1308 | struct peer *peer; |
4b7e6066 | 1309 | struct bgp_path_info *mpinfo; |
ad1844f7 | 1310 | struct bgp *bgp_orig; |
d7c0a89a | 1311 | uint32_t metric; |
b4cb15c6 | 1312 | struct attr local_attr; |
4b7e6066 DS |
1313 | struct bgp_path_info local_info; |
1314 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1315 | route_tag_t tag; |
1316 | mpls_label_t label; | |
ea7cd161 | 1317 | struct bgp_sid_info *sid_info; |
ddb5b488 | 1318 | int nh_othervrf = 0; |
06f16b2c | 1319 | bool nh_updated = false; |
4e30bc2b | 1320 | bool do_wt_ecmp; |
1321 | uint64_t cum_bw = 0; | |
6348981a AK |
1322 | uint32_t nhg_id = 0; |
1323 | bool is_add; | |
67f67ba4 DA |
1324 | uint32_t ttl = 0; |
1325 | uint32_t bos = 0; | |
1326 | uint32_t exp = 0; | |
d62a17ae | 1327 | |
1328 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1329 | * know of this instance. | |
1330 | */ | |
1331 | if (!bgp_install_info_to_zebra(bgp)) | |
1332 | return; | |
1333 | ||
d62a17ae | 1334 | if (bgp->main_zebra_update_hold) |
1335 | return; | |
1336 | ||
d90b788e | 1337 | if (safi == SAFI_FLOWSPEC) { |
9bcb3eef DS |
1338 | bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi, |
1339 | safi, true); | |
d90b788e A |
1340 | return; |
1341 | } | |
529efa23 | 1342 | |
ddb5b488 PZ |
1343 | /* |
1344 | * vrf leaking support (will have only one nexthop) | |
1345 | */ | |
1346 | if (info->extra && info->extra->bgp_orig) | |
1347 | nh_othervrf = 1; | |
1348 | ||
9913029c | 1349 | /* Make Zebra API structure. */ |
9913029c RW |
1350 | api.vrf_id = bgp->vrf_id; |
1351 | api.type = ZEBRA_ROUTE_BGP; | |
1352 | api.safi = safi; | |
1353 | api.prefix = *p; | |
1354 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1355 | ||
d62a17ae | 1356 | peer = info->peer; |
1357 | ||
ddb5b488 PZ |
1358 | if (info->type == ZEBRA_ROUTE_BGP |
1359 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1360 | ||
1ec90b5e | 1361 | /* Obtain peer from parent */ |
1362 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1363 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1364 | ->peer; | |
ddb5b488 PZ |
1365 | } |
1366 | ||
d62a17ae | 1367 | tag = info->attr->tag; |
1368 | ||
d62a17ae | 1369 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1370 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1371 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1372 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1373 | } |
a39275d7 | 1374 | |
c8d6f0d6 | 1375 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL) |
d62a17ae | 1376 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) |
892fedb6 | 1377 | || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) |
d62a17ae | 1378 | |
1a9cb083 | 1379 | allow_recursion = true; |
d62a17ae | 1380 | |
951745bd PG |
1381 | if (info->attr->rmap_table_id) { |
1382 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1383 | api.tableid = info->attr->rmap_table_id; | |
1384 | } | |
1385 | ||
ef3e0d04 SM |
1386 | if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) |
1387 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
1388 | ||
2ad4f093 RW |
1389 | /* Metric is currently based on the best-path only */ |
1390 | metric = info->attr->med; | |
4e30bc2b | 1391 | |
1392 | /* Determine if we're doing weighted ECMP or not */ | |
f7e1c681 | 1393 | do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info); |
4e30bc2b | 1394 | if (do_wt_ecmp) |
1395 | cum_bw = bgp_path_info_mpath_cumbw(info); | |
1396 | ||
6348981a | 1397 | /* EVPN MAC-IP routes are installed with a L3 NHG id */ |
8bcb09a1 | 1398 | if (bgp_evpn_path_es_use_nhg(bgp, info, &nhg_id)) { |
6348981a | 1399 | mpinfo = NULL; |
8bcb09a1 AK |
1400 | api.nhgid = nhg_id; |
1401 | if (nhg_id) | |
1402 | SET_FLAG(api.message, ZAPI_MESSAGE_NHG); | |
1403 | } else { | |
6348981a | 1404 | mpinfo = info; |
8bcb09a1 | 1405 | } |
6348981a AK |
1406 | |
1407 | for (; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { | |
f7e1c681 | 1408 | uint32_t nh_weight; |
5609e70f | 1409 | bool is_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 | ||
257b7b6e | 1475 | if (nh_family == AF_INET) { |
5609e70f XL |
1476 | is_evpn = is_route_parent_evpn(mpinfo); |
1477 | ||
77e62f2b | 1478 | nh_updated = update_ipv4nh_for_route_install( |
ad1844f7 IS |
1479 | nh_othervrf, bgp_orig, |
1480 | &mpinfo_cp->attr->nexthop, mpinfo_cp->attr, | |
1481 | is_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 | 1488 | |
5609e70f XL |
1489 | is_evpn = is_route_parent_evpn(mpinfo); |
1490 | ||
00c10664 DA |
1491 | if (!nexthop) |
1492 | nh_updated = update_ipv4nh_for_route_install( | |
ad1844f7 | 1493 | nh_othervrf, bgp_orig, |
00c10664 DA |
1494 | &mpinfo_cp->attr->nexthop, |
1495 | mpinfo_cp->attr, is_evpn, api_nh); | |
1496 | else | |
1497 | nh_updated = update_ipv6nh_for_route_install( | |
ad1844f7 IS |
1498 | nh_othervrf, bgp_orig, nexthop, ifindex, |
1499 | mpinfo, info, is_evpn, api_nh); | |
2ad4f093 | 1500 | } |
d62a17ae | 1501 | |
77e62f2b | 1502 | /* Did we get proper nexthop info to update zebra? */ |
1503 | if (!nh_updated) | |
1504 | continue; | |
1505 | ||
1a9cb083 JM |
1506 | /* Allow recursion if it is a multipath group with both |
1507 | * eBGP and iBGP paths. | |
1508 | */ | |
1509 | if (!allow_recursion | |
1510 | && CHECK_FLAG(bgp->flags, BGP_FLAG_PEERTYPE_MULTIPATH_RELAX) | |
1511 | && (mpinfo->peer->sort == BGP_PEER_IBGP | |
1512 | || mpinfo->peer->sort == BGP_PEER_CONFED)) | |
1513 | allow_recursion = true; | |
1514 | ||
5609e70f XL |
1515 | if (mpinfo->extra && |
1516 | bgp_is_valid_label(&mpinfo->extra->label[0]) && | |
1517 | !CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN)) { | |
67f67ba4 DA |
1518 | mpls_lse_decode(mpinfo->extra->label[0], &label, &ttl, |
1519 | &exp, &bos); | |
9913029c | 1520 | |
68a02e06 MS |
1521 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
1522 | ||
2ad4f093 RW |
1523 | api_nh->label_num = 1; |
1524 | api_nh->labels[0] = label; | |
d62a17ae | 1525 | } |
a2299aba AD |
1526 | |
1527 | if (is_evpn | |
1528 | && mpinfo->attr->evpn_overlay.type | |
1529 | != OVERLAY_INDEX_GATEWAY_IP) | |
1530 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), | |
1531 | sizeof(struct ethaddr)); | |
1532 | ||
f7e1c681 | 1533 | api_nh->weight = nh_weight; |
4e30bc2b | 1534 | |
5609e70f XL |
1535 | if (mpinfo->extra && !sid_zero(&mpinfo->extra->sid[0].sid) && |
1536 | !CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN)) { | |
ea7cd161 RS |
1537 | sid_info = &mpinfo->extra->sid[0]; |
1538 | ||
1539 | memcpy(&api_nh->seg6_segs, &sid_info->sid, | |
53a4de82 | 1540 | sizeof(api_nh->seg6_segs)); |
09e06fcf | 1541 | |
ea7cd161 RS |
1542 | if (sid_info->transposition_len != 0) { |
1543 | if (!bgp_is_valid_label( | |
1544 | &mpinfo->extra->label[0])) | |
1545 | continue; | |
1546 | ||
67f67ba4 DA |
1547 | mpls_lse_decode(mpinfo->extra->label[0], &label, |
1548 | &ttl, &exp, &bos); | |
ea7cd161 RS |
1549 | transpose_sid(&api_nh->seg6_segs, label, |
1550 | sid_info->transposition_offset, | |
1551 | sid_info->transposition_len); | |
1552 | } | |
1553 | ||
09e06fcf | 1554 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6); |
53a4de82 HS |
1555 | } |
1556 | ||
2ad4f093 RW |
1557 | valid_nh_count++; |
1558 | } | |
d62a17ae | 1559 | |
6348981a AK |
1560 | is_add = (valid_nh_count || nhg_id) ? true : false; |
1561 | ||
ec0acb80 | 1562 | if (is_add && CHECK_FLAG(bm->flags, BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA)) { |
94effaf0 | 1563 | struct bgp_zebra_opaque bzo = {}; |
1d7260a1 DA |
1564 | const char *reason = |
1565 | bgp_path_selection_reason2str(dest->reason); | |
94effaf0 DA |
1566 | |
1567 | strlcpy(bzo.aspath, info->attr->aspath->str, | |
1568 | sizeof(bzo.aspath)); | |
1569 | ||
1570 | if (info->attr->flag & ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES)) | |
9a706b42 DA |
1571 | strlcpy(bzo.community, |
1572 | bgp_attr_get_community(info->attr)->str, | |
94effaf0 DA |
1573 | sizeof(bzo.community)); |
1574 | ||
1575 | if (info->attr->flag | |
1576 | & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES)) | |
1bcf3a96 DA |
1577 | strlcpy(bzo.lcommunity, |
1578 | bgp_attr_get_lcommunity(info->attr)->str, | |
94effaf0 | 1579 | sizeof(bzo.lcommunity)); |
e46723a5 | 1580 | |
1d7260a1 DA |
1581 | strlcpy(bzo.selection_reason, reason, |
1582 | sizeof(bzo.selection_reason)); | |
1583 | ||
e46723a5 | 1584 | SET_FLAG(api.message, ZAPI_MESSAGE_OPAQUE); |
94effaf0 DA |
1585 | api.opaque.length = MIN(sizeof(struct bgp_zebra_opaque), |
1586 | ZAPI_MESSAGE_OPAQUE_LENGTH); | |
1587 | memcpy(api.opaque.data, &bzo, api.opaque.length); | |
e46723a5 DS |
1588 | } |
1589 | ||
1a9cb083 JM |
1590 | if (allow_recursion) |
1591 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); | |
1592 | ||
5cc347c4 DS |
1593 | /* |
1594 | * When we create an aggregate route we must also | |
1595 | * install a Null0 route in the RIB, so overwrite | |
1596 | * what was written into api with a blackhole route | |
1597 | */ | |
1598 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1599 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1600 | else | |
2ad4f093 | 1601 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1602 | |
2ad4f093 RW |
1603 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1604 | api.metric = metric; | |
d62a17ae | 1605 | |
2ad4f093 RW |
1606 | if (tag) { |
1607 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1608 | api.tag = tag; | |
1609 | } | |
d62a17ae | 1610 | |
2ad4f093 RW |
1611 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1612 | if (distance) { | |
1613 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1614 | api.distance = distance; | |
1615 | } | |
d62a17ae | 1616 | |
2ad4f093 | 1617 | if (bgp_debug_zebra(p)) { |
2ad4f093 | 1618 | char nh_buf[INET6_ADDRSTRLEN]; |
d8744f72 CS |
1619 | char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'}; |
1620 | char buf1[ETHER_ADDR_STRLEN]; | |
2ad4f093 | 1621 | char label_buf[20]; |
53a4de82 HS |
1622 | char sid_buf[20]; |
1623 | char segs_buf[256]; | |
2ad4f093 RW |
1624 | int i; |
1625 | ||
2dbe669b DA |
1626 | zlog_debug( |
1627 | "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI | |
6348981a | 1628 | " count %d nhg %d", |
2dbe669b | 1629 | valid_nh_count ? "add" : "delete", bgp->vrf_id, |
6348981a AK |
1630 | &api.prefix, api.metric, api.tag, api.nexthop_num, |
1631 | nhg_id); | |
2ad4f093 RW |
1632 | for (i = 0; i < api.nexthop_num; i++) { |
1633 | api_nh = &api.nexthops[i]; | |
1634 | ||
1ee069db CS |
1635 | switch (api_nh->type) { |
1636 | case NEXTHOP_TYPE_IFINDEX: | |
77e62f2b | 1637 | nh_buf[0] = '\0'; |
1ee069db CS |
1638 | break; |
1639 | case NEXTHOP_TYPE_IPV4: | |
1640 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1641 | nh_family = AF_INET; | |
77e62f2b | 1642 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1643 | sizeof(nh_buf)); | |
1ee069db CS |
1644 | break; |
1645 | case NEXTHOP_TYPE_IPV6: | |
1646 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1647 | nh_family = AF_INET6; | |
1648 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1649 | sizeof(nh_buf)); | |
1650 | break; | |
1651 | case NEXTHOP_TYPE_BLACKHOLE: | |
1652 | strlcpy(nh_buf, "blackhole", sizeof(nh_buf)); | |
1653 | break; | |
1654 | default: | |
1655 | /* Note: add new nexthop case */ | |
1656 | assert(0); | |
1657 | break; | |
77e62f2b | 1658 | } |
2ad4f093 RW |
1659 | |
1660 | label_buf[0] = '\0'; | |
d8744f72 | 1661 | eth_buf[0] = '\0'; |
bbf32574 | 1662 | segs_buf[0] = '\0'; |
5609e70f XL |
1663 | if (CHECK_FLAG(api_nh->flags, |
1664 | ZAPI_NEXTHOP_FLAG_LABEL) && | |
1665 | !CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN)) | |
a7799788 CS |
1666 | snprintf(label_buf, sizeof(label_buf), |
1667 | "label %u", api_nh->labels[0]); | |
5609e70f XL |
1668 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6) && |
1669 | !CHECK_FLAG(api_nh->flags, | |
1670 | ZAPI_NEXTHOP_FLAG_EVPN)) { | |
53a4de82 HS |
1671 | inet_ntop(AF_INET6, &api_nh->seg6_segs, |
1672 | sid_buf, sizeof(sid_buf)); | |
1673 | snprintf(segs_buf, sizeof(segs_buf), "segs %s", | |
1674 | sid_buf); | |
1675 | } | |
5609e70f XL |
1676 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN) && |
1677 | !is_zero_mac(&api_nh->rmac)) | |
a7799788 CS |
1678 | snprintf(eth_buf, sizeof(eth_buf), " RMAC %s", |
1679 | prefix_mac2str(&api_nh->rmac, | |
1680 | buf1, sizeof(buf1))); | |
53a4de82 | 1681 | zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s %s", |
77e62f2b | 1682 | i + 1, nh_buf, api_nh->ifindex, |
4e30bc2b | 1683 | api_nh->vrf_id, api_nh->weight, |
53a4de82 | 1684 | label_buf, segs_buf, eth_buf); |
d62a17ae | 1685 | } |
2ad4f093 | 1686 | |
960035b2 PZ |
1687 | int recursion_flag = 0; |
1688 | ||
1689 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1690 | recursion_flag = 1; | |
1691 | ||
70492dea DS |
1692 | zlog_debug("%s: %pFX: announcing to zebra (recursion %sset)", |
1693 | __func__, p, (recursion_flag ? "" : "NOT ")); | |
960035b2 | 1694 | } |
6348981a | 1695 | zclient_route_send(is_add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, |
2ad4f093 | 1696 | zclient, &api); |
718e3744 | 1697 | } |
1698 | ||
73ac8160 | 1699 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1700 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1701 | { |
9bcb3eef | 1702 | struct bgp_dest *dest; |
d62a17ae | 1703 | struct bgp_table *table; |
40381db7 | 1704 | struct bgp_path_info *pi; |
d62a17ae | 1705 | |
1706 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1707 | * know of this instance. | |
1708 | */ | |
1709 | if (!bgp_install_info_to_zebra(bgp)) | |
1710 | return; | |
1711 | ||
1712 | table = bgp->rib[afi][safi]; | |
1713 | if (!table) | |
1714 | return; | |
1715 | ||
9bcb3eef DS |
1716 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) |
1717 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
40381db7 | 1718 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1719 | |
40381db7 DS |
1720 | (pi->type == ZEBRA_ROUTE_BGP |
1721 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1722 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1723 | |
9bcb3eef DS |
1724 | bgp_zebra_announce(dest, |
1725 | bgp_dest_get_prefix(dest), | |
b54892e0 | 1726 | pi, bgp, afi, safi); |
73ac8160 DS |
1727 | } |
1728 | ||
c163f297 DS |
1729 | /* Announce routes of any bgp subtype of a table to zebra */ |
1730 | void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi, | |
1731 | safi_t safi) | |
1732 | { | |
1733 | struct bgp_dest *dest; | |
1734 | struct bgp_table *table; | |
1735 | struct bgp_path_info *pi; | |
1736 | ||
1737 | if (!bgp_install_info_to_zebra(bgp)) | |
1738 | return; | |
1739 | ||
1740 | table = bgp->rib[afi][safi]; | |
1741 | if (!table) | |
1742 | return; | |
1743 | ||
1744 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) | |
1745 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
1746 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && | |
1747 | pi->type == ZEBRA_ROUTE_BGP) | |
1748 | bgp_zebra_announce(dest, | |
1749 | bgp_dest_get_prefix(dest), | |
1750 | pi, bgp, afi, safi); | |
1751 | } | |
1752 | ||
5a1ae2c2 | 1753 | void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1754 | struct bgp *bgp, safi_t safi) |
718e3744 | 1755 | { |
2ad4f093 | 1756 | struct zapi_route api; |
f7df1907 | 1757 | struct peer *peer; |
ddb5b488 | 1758 | |
d62a17ae | 1759 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1760 | * know of this instance. | |
1761 | */ | |
568e10ca | 1762 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1763 | return; |
1764 | ||
f7df1907 PG |
1765 | if (safi == SAFI_FLOWSPEC) { |
1766 | peer = info->peer; | |
d90b788e A |
1767 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1768 | return; | |
f7df1907 | 1769 | } |
529efa23 | 1770 | |
2ad4f093 | 1771 | memset(&api, 0, sizeof(api)); |
568e10ca | 1772 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1773 | api.type = ZEBRA_ROUTE_BGP; |
1774 | api.safi = safi; | |
1775 | api.prefix = *p; | |
d62a17ae | 1776 | |
1276ce38 PG |
1777 | if (info->attr->rmap_table_id) { |
1778 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1779 | api.tableid = info->attr->rmap_table_id; | |
1780 | } | |
1781 | ||
2dbe669b DA |
1782 | if (bgp_debug_zebra(p)) |
1783 | zlog_debug("Tx route delete VRF %u %pFX", bgp->vrf_id, | |
1784 | &api.prefix); | |
d62a17ae | 1785 | |
2ad4f093 | 1786 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1787 | } |
56c1f7d8 | 1788 | |
c163f297 DS |
1789 | /* Withdraw all entries in a BGP instances RIB table from Zebra */ |
1790 | void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi) | |
1791 | { | |
1792 | struct bgp_dest *dest; | |
1793 | struct bgp_table *table; | |
1794 | struct bgp_path_info *pi; | |
1795 | ||
1796 | if (!bgp_install_info_to_zebra(bgp)) | |
1797 | return; | |
1798 | ||
1799 | table = bgp->rib[afi][safi]; | |
1800 | if (!table) | |
1801 | return; | |
1802 | ||
1803 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) { | |
1804 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
1805 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) | |
1806 | && (pi->type == ZEBRA_ROUTE_BGP)) | |
1807 | bgp_zebra_withdraw(bgp_dest_get_prefix(dest), | |
1808 | pi, bgp, safi); | |
1809 | } | |
1810 | } | |
1811 | } | |
1812 | ||
d7c0a89a QY |
1813 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1814 | unsigned short instance) | |
7c8ff89e | 1815 | { |
d62a17ae | 1816 | struct list *red_list; |
1817 | struct listnode *node; | |
1818 | struct bgp_redist *red; | |
7c8ff89e | 1819 | |
d62a17ae | 1820 | red_list = bgp->redist[afi][type]; |
1821 | if (!red_list) | |
1822 | return (NULL); | |
7c8ff89e | 1823 | |
d62a17ae | 1824 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1825 | if (red->instance == instance) | |
1826 | return red; | |
7c8ff89e | 1827 | |
d62a17ae | 1828 | return NULL; |
7c8ff89e DS |
1829 | } |
1830 | ||
d7c0a89a QY |
1831 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1832 | unsigned short instance) | |
7c8ff89e | 1833 | { |
d62a17ae | 1834 | struct list *red_list; |
1835 | struct bgp_redist *red; | |
7c8ff89e | 1836 | |
d62a17ae | 1837 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1838 | if (red) | |
1839 | return red; | |
7c8ff89e | 1840 | |
d62a17ae | 1841 | if (!bgp->redist[afi][type]) |
1842 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1843 | |
d62a17ae | 1844 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1845 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1846 | red->instance = instance; |
7c8ff89e | 1847 | |
d62a17ae | 1848 | listnode_add(red_list, red); |
7c8ff89e | 1849 | |
d62a17ae | 1850 | return red; |
7c8ff89e DS |
1851 | } |
1852 | ||
d7c0a89a QY |
1853 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1854 | unsigned short instance) | |
7c8ff89e | 1855 | { |
d62a17ae | 1856 | struct bgp_redist *red; |
1857 | ||
1858 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1859 | ||
1860 | if (red) { | |
1861 | listnode_delete(bgp->redist[afi][type], red); | |
1862 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1863 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1864 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1865 | } |
7c8ff89e | 1866 | } |
6b0655a2 | 1867 | |
718e3744 | 1868 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1869 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1870 | unsigned short instance, bool changed) |
718e3744 | 1871 | { |
e923dd62 | 1872 | /* If redistribute options are changed call |
1873 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1874 | * the routes | |
1875 | */ | |
1876 | if (changed) | |
1877 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1878 | |
d62a17ae | 1879 | /* Return if already redistribute flag is set. */ |
1880 | if (instance) { | |
1881 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1882 | instance)) | |
1883 | return CMD_WARNING; | |
718e3744 | 1884 | |
d62a17ae | 1885 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1886 | } else { | |
d9083050 IR |
1887 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) |
1888 | return CMD_WARNING; | |
1889 | ||
49e5a4a0 | 1890 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1891 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1892 | vnc_export_bgp_enable( |
1893 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1894 | } | |
65efcfce LB |
1895 | #endif |
1896 | ||
d62a17ae | 1897 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1898 | } | |
718e3744 | 1899 | |
ea12cf11 DS |
1900 | /* |
1901 | * Don't try to register if we're not connected to Zebra or Zebra | |
1902 | * doesn't know of this instance. | |
1903 | * | |
1904 | * When we come up later well resend if needed. | |
d62a17ae | 1905 | */ |
1906 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1907 | return CMD_SUCCESS; |
a39275d7 | 1908 | |
d62a17ae | 1909 | if (BGP_DEBUG(zebra, ZEBRA)) |
1910 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1911 | bgp->vrf_id, afi, zebra_route_string(type), | |
1912 | instance); | |
518f0eb1 | 1913 | |
d62a17ae | 1914 | /* Send distribute add message to zebra. */ |
1915 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1916 | instance, bgp->vrf_id); | |
718e3744 | 1917 | |
d62a17ae | 1918 | return CMD_SUCCESS; |
718e3744 | 1919 | } |
1920 | ||
d62a17ae | 1921 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1922 | unsigned short instance) |
518f0eb1 | 1923 | { |
d62a17ae | 1924 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1925 | * know of this instance. | |
1926 | */ | |
1927 | if (!bgp_install_info_to_zebra(bgp)) | |
1928 | return -1; | |
1929 | ||
1930 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1931 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1932 | bgp->vrf_id, afi, zebra_route_string(type), | |
1933 | instance); | |
1934 | ||
1935 | /* Send distribute add message to zebra. */ | |
1936 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1937 | instance, bgp->vrf_id); | |
1938 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1939 | instance, bgp->vrf_id); | |
1940 | ||
1941 | return 0; | |
518f0eb1 DS |
1942 | } |
1943 | ||
718e3744 | 1944 | /* Redistribute with route-map specification. */ |
3dc339cd DA |
1945 | bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1946 | struct route_map *route_map) | |
718e3744 | 1947 | { |
d62a17ae | 1948 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
3dc339cd | 1949 | return false; |
718e3744 | 1950 | |
0a22ddfb | 1951 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1952 | /* Decrement the count for existing routemap and |
1953 | * increment the count for new route map. | |
1954 | */ | |
1955 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1956 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1957 | red->rmap.map = route_map; |
b4897fa5 | 1958 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1959 | |
3dc339cd | 1960 | return true; |
718e3744 | 1961 | } |
1962 | ||
1963 | /* Redistribute with metric specification. */ | |
3dc339cd DA |
1964 | bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
1965 | afi_t afi, int type, uint32_t metric) | |
718e3744 | 1966 | { |
9bcb3eef | 1967 | struct bgp_dest *dest; |
40381db7 | 1968 | struct bgp_path_info *pi; |
d62a17ae | 1969 | |
1970 | if (red->redist_metric_flag && red->redist_metric == metric) | |
3dc339cd | 1971 | return false; |
d62a17ae | 1972 | |
1973 | red->redist_metric_flag = 1; | |
1974 | red->redist_metric = metric; | |
1975 | ||
9bcb3eef DS |
1976 | for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest; |
1977 | dest = bgp_route_next(dest)) { | |
1978 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
40381db7 DS |
1979 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1980 | && pi->type == type | |
1981 | && pi->instance == red->instance) { | |
d62a17ae | 1982 | struct attr *old_attr; |
1983 | struct attr new_attr; | |
1984 | ||
6f4f49b2 | 1985 | new_attr = *pi->attr; |
d62a17ae | 1986 | new_attr.med = red->redist_metric; |
40381db7 DS |
1987 | old_attr = pi->attr; |
1988 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1989 | bgp_attr_unintern(&old_attr); |
1990 | ||
9bcb3eef | 1991 | bgp_path_info_set_flag(dest, pi, |
18ee8310 | 1992 | BGP_PATH_ATTR_CHANGED); |
9bcb3eef | 1993 | bgp_process(bgp, dest, afi, SAFI_UNICAST); |
d62a17ae | 1994 | } |
1995 | } | |
1996 | } | |
1997 | ||
3dc339cd | 1998 | return true; |
718e3744 | 1999 | } |
2000 | ||
2001 | /* Unset redistribution. */ | |
d62a17ae | 2002 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 2003 | unsigned short instance) |
718e3744 | 2004 | { |
d62a17ae | 2005 | struct bgp_redist *red; |
2006 | ||
2007 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
2008 | if (!red) | |
2009 | return CMD_SUCCESS; | |
2010 | ||
2011 | /* Return if zebra connection is disabled. */ | |
2012 | if (instance) { | |
2013 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
2014 | instance)) | |
2015 | return CMD_WARNING; | |
2016 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
2017 | } else { | |
2018 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
2019 | return CMD_WARNING; | |
2020 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
2021 | } | |
718e3744 | 2022 | |
d62a17ae | 2023 | if (bgp_install_info_to_zebra(bgp)) { |
2024 | /* Send distribute delete message to zebra. */ | |
2025 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2026 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
2027 | bgp->vrf_id, afi, zebra_route_string(type), | |
2028 | instance); | |
2029 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
2030 | type, instance, bgp->vrf_id); | |
2031 | } | |
2032 | ||
2033 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
2034 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
2035 | ||
2036 | return CMD_SUCCESS; | |
718e3744 | 2037 | } |
2038 | ||
6aeb9e78 | 2039 | /* Unset redistribution. */ |
d62a17ae | 2040 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 2041 | unsigned short instance) |
6aeb9e78 | 2042 | { |
d62a17ae | 2043 | struct bgp_redist *red; |
6aeb9e78 | 2044 | |
ddb5b488 PZ |
2045 | /* |
2046 | * vnc and vpn->vrf checks must be before red check because | |
2047 | * they operate within bgpd irrespective of zebra connection | |
2048 | * status. red lookup fails if there is no zebra connection. | |
2049 | */ | |
49e5a4a0 | 2050 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 2051 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
2052 | vnc_export_bgp_disable(bgp, afi); |
2053 | } | |
2054 | #endif | |
ddb5b488 | 2055 | |
d62a17ae | 2056 | red = bgp_redist_lookup(bgp, afi, type, instance); |
2057 | if (!red) | |
2058 | return CMD_SUCCESS; | |
6aeb9e78 | 2059 | |
d62a17ae | 2060 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 2061 | |
d62a17ae | 2062 | /* Unset route-map. */ |
0a22ddfb | 2063 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 2064 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 2065 | red->rmap.map = NULL; |
6aeb9e78 | 2066 | |
d62a17ae | 2067 | /* Unset metric. */ |
2068 | red->redist_metric_flag = 0; | |
2069 | red->redist_metric = 0; | |
6aeb9e78 | 2070 | |
d62a17ae | 2071 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 2072 | |
d62a17ae | 2073 | return CMD_SUCCESS; |
6aeb9e78 DS |
2074 | } |
2075 | ||
fc2408ec DS |
2076 | void bgp_redistribute_redo(struct bgp *bgp) |
2077 | { | |
2078 | afi_t afi; | |
2079 | int i; | |
2080 | struct list *red_list; | |
2081 | struct listnode *node; | |
2082 | struct bgp_redist *red; | |
2083 | ||
2084 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
2085 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
2086 | ||
2087 | red_list = bgp->redist[afi][i]; | |
2088 | if (!red_list) | |
2089 | continue; | |
2090 | ||
2091 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
2092 | bgp_redistribute_resend(bgp, afi, i, | |
2093 | red->instance); | |
2094 | } | |
2095 | } | |
2096 | } | |
2097 | } | |
2098 | ||
d62a17ae | 2099 | void bgp_zclient_reset(void) |
718e3744 | 2100 | { |
d62a17ae | 2101 | zclient_reset(zclient); |
718e3744 | 2102 | } |
2103 | ||
ad4cbda1 | 2104 | /* Register this instance with Zebra. Invoked upon connect (for |
2105 | * default instance) and when other VRFs are learnt (or created and | |
2106 | * already learnt). | |
2107 | */ | |
d62a17ae | 2108 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 2109 | { |
d62a17ae | 2110 | /* Don't try to register if we're not connected to Zebra */ |
2111 | if (!zclient || zclient->sock < 0) | |
2112 | return; | |
ad4cbda1 | 2113 | |
d62a17ae | 2114 | if (BGP_DEBUG(zebra, ZEBRA)) |
2115 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 2116 | |
d62a17ae | 2117 | /* Register for router-id, interfaces, redistributed routes. */ |
2118 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 2119 | |
e2f3a930 T |
2120 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
2121 | if (bgp->advertise_all_vni) | |
d62a17ae | 2122 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
2123 | |
2124 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 2125 | } |
2126 | ||
2127 | /* Deregister this instance with Zebra. Invoked upon the instance | |
2128 | * being deleted (default or VRF) and it is already registered. | |
2129 | */ | |
d62a17ae | 2130 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 2131 | { |
d62a17ae | 2132 | /* Don't try to deregister if we're not connected to Zebra */ |
2133 | if (zclient->sock < 0) | |
2134 | return; | |
ad4cbda1 | 2135 | |
d62a17ae | 2136 | if (BGP_DEBUG(zebra, ZEBRA)) |
2137 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 2138 | |
e2f3a930 T |
2139 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
2140 | if (bgp->advertise_all_vni) | |
d62a17ae | 2141 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 2142 | |
d62a17ae | 2143 | /* Deregister for router-id, interfaces, redistributed routes. */ |
2144 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 2145 | } |
2146 | ||
d62a17ae | 2147 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2148 | { |
bbad0276 | 2149 | uint32_t ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 2150 | |
d62a17ae | 2151 | /* Don't try to initiate if we're not connected to Zebra */ |
2152 | if (zclient->sock < 0) | |
2153 | return; | |
4a04e5f7 | 2154 | |
d62a17ae | 2155 | if (BGP_DEBUG(zebra, ZEBRA)) |
2156 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
2157 | peer->host); | |
4a04e5f7 | 2158 | |
b3a3290e DS |
2159 | /* |
2160 | * If unnumbered peer (peer->ifp) call thru zapi to start RAs. | |
2161 | * If we don't have an ifp pointer, call function to find the | |
2162 | * ifps for a numbered enhe peer to turn RAs on. | |
2163 | */ | |
2164 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2165 | peer->ifp, 1, ra_interval) | |
2166 | : bgp_nht_reg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2167 | } |
2168 | ||
d62a17ae | 2169 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2170 | { |
d62a17ae | 2171 | /* Don't try to terminate if we're not connected to Zebra */ |
2172 | if (zclient->sock < 0) | |
2173 | return; | |
4a04e5f7 | 2174 | |
d62a17ae | 2175 | if (BGP_DEBUG(zebra, ZEBRA)) |
2176 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
2177 | peer->host); | |
4a04e5f7 | 2178 | |
b3a3290e DS |
2179 | /* |
2180 | * If unnumbered peer (peer->ifp) call thru zapi to stop RAs. | |
2181 | * If we don't have an ifp pointer, call function to find the | |
2182 | * ifps for a numbered enhe peer to turn RAs off. | |
2183 | */ | |
2184 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2185 | peer->ifp, 0, 0) | |
2186 | : bgp_nht_dereg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2187 | } |
2188 | ||
31310b25 MK |
2189 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
2190 | { | |
2191 | struct stream *s = NULL; | |
2192 | ||
2193 | /* Check socket. */ | |
2194 | if (!zclient || zclient->sock < 0) | |
2195 | return 0; | |
2196 | ||
2197 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2198 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2199 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2200 | zlog_debug( |
2201 | "%s: No zebra instance to talk to, cannot advertise subnet", | |
2202 | __func__); | |
31310b25 | 2203 | return 0; |
bb4ef1ae | 2204 | } |
31310b25 MK |
2205 | |
2206 | s = zclient->obuf; | |
2207 | stream_reset(s); | |
2208 | ||
2209 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
2210 | stream_putc(s, advertise); | |
2211 | stream_put3(s, vni); | |
2212 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2213 | ||
2214 | return zclient_send_message(zclient); | |
2215 | } | |
2216 | ||
a8016157 CS |
2217 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
2218 | { | |
2219 | struct stream *s = NULL; | |
2220 | ||
2221 | /* Check socket. */ | |
2222 | if (!zclient || zclient->sock < 0) | |
2223 | return 0; | |
2224 | ||
2225 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2226 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2227 | return 0; | |
2228 | ||
2229 | s = zclient->obuf; | |
2230 | stream_reset(s); | |
2231 | ||
2232 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
2233 | stream_putc(s, advertise); | |
2234 | stream_putl(s, vni); | |
2235 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2236 | ||
2237 | return zclient_send_message(zclient); | |
2238 | } | |
2239 | ||
1a98c087 MK |
2240 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
2241 | { | |
2242 | struct stream *s = NULL; | |
2243 | ||
2244 | /* Check socket. */ | |
2245 | if (!zclient || zclient->sock < 0) | |
2246 | return 0; | |
2247 | ||
2248 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2249 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2250 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2251 | zlog_debug( |
2252 | "%s: No zebra instance to talk to, not installing gw_macip", | |
2253 | __func__); | |
1a98c087 | 2254 | return 0; |
bb4ef1ae | 2255 | } |
1a98c087 MK |
2256 | |
2257 | s = zclient->obuf; | |
2258 | stream_reset(s); | |
2259 | ||
2260 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
2261 | stream_putc(s, advertise); | |
cc6d5476 | 2262 | stream_putl(s, vni); |
1a98c087 MK |
2263 | stream_putw_at(s, 0, stream_get_endp(s)); |
2264 | ||
2265 | return zclient_send_message(zclient); | |
2266 | } | |
2267 | ||
fd069644 DS |
2268 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
2269 | enum vxlan_flood_control flood_ctrl) | |
2270 | { | |
2271 | struct stream *s; | |
2272 | ||
2273 | /* Check socket. */ | |
2274 | if (!zclient || zclient->sock < 0) | |
2275 | return 0; | |
2276 | ||
2277 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2278 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2279 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2280 | zlog_debug( |
2281 | "%s: No zebra instance to talk to, not installing all vni", | |
2282 | __func__); | |
fd069644 | 2283 | return 0; |
bb4ef1ae | 2284 | } |
fd069644 DS |
2285 | |
2286 | s = zclient->obuf; | |
2287 | stream_reset(s); | |
2288 | ||
2289 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2290 | stream_putc(s, flood_ctrl); | |
2291 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2292 | ||
2293 | return zclient_send_message(zclient); | |
2294 | } | |
2295 | ||
d62a17ae | 2296 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2297 | { |
d62a17ae | 2298 | struct stream *s; |
7724c0a1 | 2299 | |
d62a17ae | 2300 | /* Check socket. */ |
2301 | if (!zclient || zclient->sock < 0) | |
2302 | return 0; | |
7724c0a1 | 2303 | |
d62a17ae | 2304 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2305 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2306 | return 0; | |
7724c0a1 | 2307 | |
d62a17ae | 2308 | s = zclient->obuf; |
2309 | stream_reset(s); | |
7724c0a1 | 2310 | |
d62a17ae | 2311 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2312 | stream_putc(s, advertise); | |
fbac9605 DS |
2313 | /* Also inform current BUM handling setting. This is really |
2314 | * relevant only when 'advertise' is set. | |
2315 | */ | |
fd069644 | 2316 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2317 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2318 | |
d62a17ae | 2319 | return zclient_send_message(zclient); |
7724c0a1 | 2320 | } |
2321 | ||
0b9d9cd0 CS |
2322 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2323 | { | |
2324 | struct stream *s; | |
2325 | ||
2326 | /* Check socket. */ | |
2327 | if (!zclient || zclient->sock < 0) | |
2328 | return 0; | |
2329 | ||
2330 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2331 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2332 | return 0; | |
2333 | ||
2334 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2335 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2336 | bgp->evpn_info->dup_addr_detect ? | |
2337 | "enable" : "disable", | |
2338 | bgp->evpn_info->dad_max_moves, | |
2339 | bgp->evpn_info->dad_time, | |
2340 | bgp->evpn_info->dad_freeze ? | |
2341 | "enable" : "disable", | |
2342 | bgp->evpn_info->dad_freeze_time); | |
2343 | ||
2344 | s = zclient->obuf; | |
2345 | stream_reset(s); | |
2346 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2347 | bgp->vrf_id); | |
2348 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2349 | stream_putl(s, bgp->evpn_info->dad_time); | |
2350 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2351 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2352 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2353 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2354 | ||
2355 | return zclient_send_message(zclient); | |
2356 | } | |
2357 | ||
121f9dee | 2358 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2359 | { |
2360 | uint32_t seqno, priority, unique; | |
2361 | enum zapi_rule_notify_owner note; | |
2362 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2363 | struct bgp_pbr_rule *bgp_pbr = NULL; |
58a1d249 | 2364 | char ifname[INTERFACE_NAMSIZ + 1]; |
30d50e6d PG |
2365 | |
2366 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
58a1d249 | 2367 | ifname, ¬e)) |
30d50e6d PG |
2368 | return -1; |
2369 | ||
70eabd12 | 2370 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2371 | if (!bgp_pbra) { |
ffee150e PG |
2372 | /* look in bgp pbr rule */ |
2373 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2374 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2375 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2376 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
15569c58 | 2377 | __func__, unique); |
ffee150e PG |
2378 | return 0; |
2379 | } | |
30d50e6d PG |
2380 | } |
2381 | ||
2382 | switch (note) { | |
2383 | case ZAPI_RULE_FAIL_INSTALL: | |
2384 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2385 | zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__); |
ffee150e PG |
2386 | if (bgp_pbra) { |
2387 | bgp_pbra->installed = false; | |
2388 | bgp_pbra->install_in_progress = false; | |
2389 | } else { | |
2390 | bgp_pbr->installed = false; | |
2391 | bgp_pbr->install_in_progress = false; | |
2392 | } | |
30d50e6d PG |
2393 | break; |
2394 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2395 | if (bgp_pbra) { |
2396 | bgp_pbra->installed = true; | |
2397 | bgp_pbra->install_in_progress = false; | |
2398 | } else { | |
ce3c0614 PG |
2399 | struct bgp_path_info *path; |
2400 | struct bgp_path_info_extra *extra; | |
2401 | ||
ffee150e PG |
2402 | bgp_pbr->installed = true; |
2403 | bgp_pbr->install_in_progress = false; | |
2404 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2405 | /* link bgp_info to bgp_pbr */ |
2406 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2407 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2408 | listnode_add_force(&extra->bgp_fs_iprule, |
2409 | bgp_pbr); | |
ffee150e | 2410 | } |
30d50e6d | 2411 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 | 2412 | zlog_debug("%s: Received RULE_INSTALLED", __func__); |
30d50e6d | 2413 | break; |
f18a08f5 | 2414 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2415 | case ZAPI_RULE_REMOVED: |
2416 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2417 | zlog_debug("%s: Received RULE REMOVED", __func__); |
30d50e6d PG |
2418 | break; |
2419 | } | |
2420 | ||
2421 | return 0; | |
2422 | } | |
2423 | ||
121f9dee | 2424 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2425 | { |
2426 | uint32_t unique; | |
2427 | enum zapi_ipset_notify_owner note; | |
2428 | struct bgp_pbr_match *bgp_pbim; | |
2429 | ||
2430 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2431 | &unique, | |
2432 | ¬e)) | |
2433 | return -1; | |
2434 | ||
2435 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2436 | if (!bgp_pbim) { | |
2437 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2438 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
15569c58 | 2439 | __func__, note, unique); |
30d50e6d PG |
2440 | return 0; |
2441 | } | |
2442 | ||
2443 | switch (note) { | |
2444 | case ZAPI_IPSET_FAIL_INSTALL: | |
2445 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2446 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__); |
30d50e6d PG |
2447 | bgp_pbim->installed = false; |
2448 | bgp_pbim->install_in_progress = false; | |
2449 | break; | |
2450 | case ZAPI_IPSET_INSTALLED: | |
2451 | bgp_pbim->installed = true; | |
2452 | bgp_pbim->install_in_progress = false; | |
2453 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2454 | zlog_debug("%s: Received IPSET_INSTALLED", __func__); |
30d50e6d | 2455 | break; |
f18a08f5 | 2456 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2457 | case ZAPI_IPSET_REMOVED: |
2458 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2459 | zlog_debug("%s: Received IPSET REMOVED", __func__); |
30d50e6d PG |
2460 | break; |
2461 | } | |
2462 | ||
2463 | return 0; | |
2464 | } | |
2465 | ||
121f9dee | 2466 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2467 | { |
2468 | uint32_t unique; | |
2469 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2470 | enum zapi_ipset_entry_notify_owner note; | |
2471 | struct bgp_pbr_match_entry *bgp_pbime; | |
2472 | ||
2473 | if (!zapi_ipset_entry_notify_decode( | |
2474 | zclient->ibuf, | |
2475 | &unique, | |
2476 | ipset_name, | |
2477 | ¬e)) | |
2478 | return -1; | |
2479 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2480 | ipset_name, | |
2481 | unique); | |
2482 | if (!bgp_pbime) { | |
2483 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2484 | zlog_debug( |
2485 | "%s: Fail to look BGP match entry (%u, ID %u)", | |
2486 | __func__, note, unique); | |
30d50e6d PG |
2487 | return 0; |
2488 | } | |
2489 | ||
2490 | switch (note) { | |
2491 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2492 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2493 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
15569c58 | 2494 | __func__); |
30d50e6d PG |
2495 | bgp_pbime->installed = false; |
2496 | bgp_pbime->install_in_progress = false; | |
2497 | break; | |
2498 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2499 | { |
9b6d8fcf | 2500 | struct bgp_path_info *path; |
4b7e6066 DS |
2501 | struct bgp_path_info_extra *extra; |
2502 | ||
2503 | bgp_pbime->installed = true; | |
2504 | bgp_pbime->install_in_progress = false; | |
2505 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2506 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
15569c58 | 2507 | __func__); |
9b6d8fcf DS |
2508 | /* link bgp_path_info to bpme */ |
2509 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2510 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2511 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2512 | } |
30d50e6d | 2513 | break; |
f18a08f5 | 2514 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2515 | case ZAPI_IPSET_ENTRY_REMOVED: |
2516 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2517 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
15569c58 | 2518 | __func__); |
30d50e6d PG |
2519 | break; |
2520 | } | |
2521 | return 0; | |
2522 | } | |
2523 | ||
121f9dee | 2524 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2525 | { |
2526 | uint32_t unique; | |
2527 | enum zapi_iptable_notify_owner note; | |
2528 | struct bgp_pbr_match *bgpm; | |
2529 | ||
2530 | if (!zapi_iptable_notify_decode( | |
2531 | zclient->ibuf, | |
2532 | &unique, | |
2533 | ¬e)) | |
2534 | return -1; | |
2535 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2536 | if (!bgpm) { | |
2537 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed | 2538 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
15569c58 | 2539 | __func__, note, unique); |
c16a0a62 PG |
2540 | return 0; |
2541 | } | |
2542 | switch (note) { | |
2543 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2544 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2545 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
15569c58 | 2546 | __func__); |
c16a0a62 PG |
2547 | bgpm->installed_in_iptable = false; |
2548 | bgpm->install_iptable_in_progress = false; | |
2549 | break; | |
2550 | case ZAPI_IPTABLE_INSTALLED: | |
2551 | bgpm->installed_in_iptable = true; | |
2552 | bgpm->install_iptable_in_progress = false; | |
2553 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2554 | zlog_debug("%s: Received IPTABLE_INSTALLED", __func__); |
a6b07429 | 2555 | bgpm->action->refcnt++; |
c16a0a62 | 2556 | break; |
f18a08f5 | 2557 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2558 | case ZAPI_IPTABLE_REMOVED: |
2559 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2560 | zlog_debug("%s: Received IPTABLE REMOVED", __func__); |
c16a0a62 PG |
2561 | break; |
2562 | } | |
2563 | return 0; | |
2564 | } | |
2565 | ||
a77e2f4b S |
2566 | /* Process route notification messages from RIB */ |
2567 | static int bgp_zebra_route_notify_owner(int command, struct zclient *zclient, | |
2568 | zebra_size_t length, vrf_id_t vrf_id) | |
2569 | { | |
2570 | struct prefix p; | |
2571 | enum zapi_route_notify_owner note; | |
2572 | uint32_t table_id; | |
a77e2f4b S |
2573 | afi_t afi; |
2574 | safi_t safi; | |
2575 | struct bgp_dest *dest; | |
2576 | struct bgp *bgp; | |
2577 | struct bgp_path_info *pi, *new_select; | |
2578 | ||
2579 | if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, ¬e, | |
2580 | &afi, &safi)) { | |
cc42c4f0 | 2581 | zlog_err("%s : error in msg decode", __func__); |
a77e2f4b S |
2582 | return -1; |
2583 | } | |
2584 | ||
2585 | /* Get the bgp instance */ | |
2586 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2587 | if (!bgp) { | |
2588 | flog_err(EC_BGP_INVALID_BGP_INSTANCE, | |
cc42c4f0 DS |
2589 | "%s : bgp instance not found vrf %d", __func__, |
2590 | vrf_id); | |
a77e2f4b S |
2591 | return -1; |
2592 | } | |
2593 | ||
a77e2f4b S |
2594 | /* Find the bgp route node */ |
2595 | dest = bgp_afi_node_lookup(bgp->rib[afi][safi], afi, safi, &p, | |
2596 | &bgp->vrf_prd); | |
2597 | if (!dest) | |
2598 | return -1; | |
2599 | ||
a77e2f4b S |
2600 | switch (note) { |
2601 | case ZAPI_ROUTE_INSTALLED: | |
2602 | new_select = NULL; | |
2603 | /* Clear the flags so that route can be processed */ | |
be785e35 DS |
2604 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); |
2605 | SET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2606 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2607 | zlog_debug("route %pRN : INSTALLED", dest); | |
2608 | /* Find the best route */ | |
2609 | for (pi = dest->info; pi; pi = pi->next) { | |
2610 | /* Process aggregate route */ | |
2611 | bgp_aggregate_increment(bgp, &p, pi, afi, safi); | |
2612 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2613 | new_select = pi; | |
2614 | } | |
2615 | /* Advertise the route */ | |
2616 | if (new_select) | |
2617 | group_announce_route(bgp, afi, safi, dest, new_select); | |
2618 | else { | |
2619 | flog_err(EC_BGP_INVALID_ROUTE, | |
2620 | "selected route %pRN not found", dest); | |
2621 | ||
2622 | bgp_dest_unlock_node(dest); | |
2623 | return -1; | |
a77e2f4b S |
2624 | } |
2625 | break; | |
2626 | case ZAPI_ROUTE_REMOVED: | |
2627 | /* Route deleted from dataplane, reset the installed flag | |
2628 | * so that route can be reinstalled when client sends | |
2629 | * route add later | |
2630 | */ | |
2631 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
1a3519b6 DS |
2632 | if (BGP_DEBUG(zebra, ZEBRA)) |
2633 | zlog_debug("route %pRN: Removed from Fib", dest); | |
a77e2f4b S |
2634 | break; |
2635 | case ZAPI_ROUTE_FAIL_INSTALL: | |
be785e35 | 2636 | new_select = NULL; |
1a3519b6 DS |
2637 | if (BGP_DEBUG(zebra, ZEBRA)) |
2638 | zlog_debug("route: %pRN Failed to Install into Fib", | |
2639 | dest); | |
be785e35 DS |
2640 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); |
2641 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2642 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
2643 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2644 | new_select = pi; | |
2645 | } | |
2646 | if (new_select) | |
2647 | group_announce_route(bgp, afi, safi, dest, new_select); | |
a77e2f4b S |
2648 | /* Error will be logged by zebra module */ |
2649 | break; | |
2650 | case ZAPI_ROUTE_BETTER_ADMIN_WON: | |
1a3519b6 DS |
2651 | if (BGP_DEBUG(zebra, ZEBRA)) |
2652 | zlog_debug("route: %pRN removed due to better admin won", | |
2653 | dest); | |
be785e35 DS |
2654 | new_select = NULL; |
2655 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); | |
2656 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2657 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
2658 | bgp_aggregate_decrement(bgp, &p, pi, afi, safi); | |
2659 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2660 | new_select = pi; | |
2661 | } | |
2662 | if (new_select) | |
2663 | group_announce_route(bgp, afi, safi, dest, new_select); | |
a77e2f4b S |
2664 | /* No action required */ |
2665 | break; | |
2666 | case ZAPI_ROUTE_REMOVE_FAIL: | |
1a3519b6 DS |
2667 | zlog_warn("%s: Route %pRN failure to remove", |
2668 | __func__, dest); | |
a77e2f4b S |
2669 | break; |
2670 | } | |
e71ad4b6 DA |
2671 | |
2672 | bgp_dest_unlock_node(dest); | |
a77e2f4b S |
2673 | return 0; |
2674 | } | |
2675 | ||
6cfe5d15 PG |
2676 | /* this function is used to forge ip rule, |
2677 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2678 | * - or for sample ip rule cmd |
6cfe5d15 | 2679 | */ |
30d50e6d | 2680 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2681 | struct bgp_pbr_action *pbra, |
2682 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2683 | { |
6cfe5d15 | 2684 | struct prefix pfx; |
f01e580f | 2685 | uint8_t fam = AF_INET; |
e95666cb | 2686 | char ifname[INTERFACE_NAMSIZ]; |
30d50e6d | 2687 | |
9f1f03ec | 2688 | if (pbra->nh.type == NEXTHOP_TYPE_IPV6) |
f01e580f | 2689 | fam = AF_INET6; |
30d50e6d | 2690 | stream_putl(s, 0); /* seqno unused */ |
8112a7a0 PG |
2691 | if (pbr) |
2692 | stream_putl(s, pbr->priority); | |
2693 | else | |
2694 | stream_putl(s, 0); | |
2695 | /* ruleno unused - priority change | |
2696 | * ruleno permits distinguishing various FS PBR entries | |
2697 | * - FS PBR entries based on ipset/iptables | |
2698 | * - FS PBR entries based on iprule | |
2699 | * the latter may contain default routing information injected by FS | |
2700 | */ | |
6cfe5d15 PG |
2701 | if (pbr) |
2702 | stream_putl(s, pbr->unique); | |
2703 | else | |
2704 | stream_putl(s, pbra->unique); | |
f56697ef | 2705 | stream_putc(s, 0); /* ip protocol being used */ |
6cfe5d15 PG |
2706 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) |
2707 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2708 | else { | |
2709 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2710 | pfx.family = fam; |
6cfe5d15 PG |
2711 | } |
2712 | stream_putc(s, pfx.family); | |
2713 | stream_putc(s, pfx.prefixlen); | |
2714 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2715 | |
2716 | stream_putw(s, 0); /* src port */ | |
2717 | ||
6cfe5d15 PG |
2718 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2719 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2720 | else { | |
2721 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2722 | pfx.family = fam; |
6cfe5d15 PG |
2723 | } |
2724 | stream_putc(s, pfx.family); | |
2725 | stream_putc(s, pfx.prefixlen); | |
2726 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2727 | |
2728 | stream_putw(s, 0); /* dst port */ | |
e95666cb | 2729 | stream_putc(s, 0); /* dsfield */ |
6cfe5d15 PG |
2730 | /* if pbr present, fwmark is not used */ |
2731 | if (pbr) | |
2732 | stream_putl(s, 0); | |
2733 | else | |
2734 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d | 2735 | |
62bf6b42 DS |
2736 | stream_putl(s, 0); /* queue id */ |
2737 | stream_putw(s, 0); /* vlan_id */ | |
2738 | stream_putw(s, 0); /* vlan_flags */ | |
2739 | stream_putw(s, 0); /* pcp */ | |
2740 | ||
30d50e6d PG |
2741 | stream_putl(s, pbra->table_id); |
2742 | ||
e95666cb DS |
2743 | memset(ifname, 0, sizeof(ifname)); |
2744 | stream_put(s, ifname, INTERFACE_NAMSIZ); /* ifname unused */ | |
30d50e6d PG |
2745 | } |
2746 | ||
2747 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2748 | struct bgp_pbr_match *pbim) | |
2749 | { | |
2750 | stream_putl(s, pbim->unique); | |
2751 | stream_putl(s, pbim->type); | |
a60b7031 | 2752 | stream_putc(s, pbim->family); |
30d50e6d PG |
2753 | stream_put(s, pbim->ipset_name, |
2754 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2755 | } |
2756 | ||
2757 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2758 | struct bgp_pbr_match_entry *pbime) | |
2759 | { | |
2760 | stream_putl(s, pbime->unique); | |
2761 | /* check that back pointer is not null */ | |
2762 | stream_put(s, pbime->backpointer->ipset_name, | |
2763 | ZEBRA_IPSET_NAME_SIZE); | |
2764 | ||
2765 | stream_putc(s, pbime->src.family); | |
2766 | stream_putc(s, pbime->src.prefixlen); | |
2767 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2768 | ||
2769 | stream_putc(s, pbime->dst.family); | |
2770 | stream_putc(s, pbime->dst.prefixlen); | |
2771 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2772 | |
2773 | stream_putw(s, pbime->src_port_min); | |
2774 | stream_putw(s, pbime->src_port_max); | |
2775 | stream_putw(s, pbime->dst_port_min); | |
2776 | stream_putw(s, pbime->dst_port_max); | |
2777 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2778 | } |
2779 | ||
c16a0a62 PG |
2780 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2781 | struct bgp_pbr_action *bpa, | |
2782 | struct bgp_pbr_match *pbm) | |
2783 | { | |
2784 | stream_putl(s, pbm->unique2); | |
2785 | ||
2786 | stream_putl(s, pbm->type); | |
2787 | ||
2788 | stream_putl(s, pbm->flags); | |
2789 | ||
2790 | /* TODO: correlate with what is contained | |
2791 | * into bgp_pbr_action. | |
2792 | * currently only forward supported | |
2793 | */ | |
2794 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2795 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2796 | else | |
2797 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2798 | stream_putl(s, bpa->fwmark); | |
2799 | stream_put(s, pbm->ipset_name, | |
2800 | ZEBRA_IPSET_NAME_SIZE); | |
a60b7031 | 2801 | stream_putc(s, pbm->family); |
83360720 PG |
2802 | stream_putw(s, pbm->pkt_len_min); |
2803 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2804 | stream_putw(s, pbm->tcp_flags); |
2805 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2806 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2807 | stream_putc(s, pbm->fragment); |
f449d223 | 2808 | stream_putc(s, pbm->protocol); |
a60b7031 | 2809 | stream_putw(s, pbm->flow_label); |
c16a0a62 PG |
2810 | } |
2811 | ||
ad4cbda1 | 2812 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2813 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2814 | { |
d62a17ae | 2815 | struct bgp *bgp; |
7076bb2f | 2816 | |
d62a17ae | 2817 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2818 | |
6bfcd0f1 IR |
2819 | /* Send the client registration */ |
2820 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT); | |
2821 | ||
d62a17ae | 2822 | /* At this point, we may or may not have BGP instances configured, but |
2823 | * we're only interested in the default VRF (others wouldn't have learnt | |
2824 | * the VRF from Zebra yet.) | |
2825 | */ | |
2826 | bgp = bgp_get_default(); | |
2827 | if (!bgp) | |
2828 | return; | |
ad4cbda1 | 2829 | |
d62a17ae | 2830 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2831 | |
955bfd98 | 2832 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2833 | bgp_lp_event_zebra_up(); |
955bfd98 | 2834 | |
d62a17ae | 2835 | /* TODO - What if we have peers and networks configured, do we have to |
2836 | * kick-start them? | |
2837 | */ | |
85ef4179 | 2838 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer); |
7076bb2f FL |
2839 | } |
2840 | ||
c44ab6f1 AK |
2841 | static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS) |
2842 | { | |
2843 | esi_t esi; | |
2844 | struct bgp *bgp = NULL; | |
2845 | struct stream *s = NULL; | |
2846 | char buf[ESI_STR_LEN]; | |
2847 | struct in_addr originator_ip; | |
2848 | uint8_t active; | |
74be8313 | 2849 | uint8_t bypass; |
74e2bd89 | 2850 | uint16_t df_pref; |
c44ab6f1 AK |
2851 | |
2852 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2853 | if (!bgp) | |
2854 | return 0; | |
2855 | ||
2856 | s = zclient->ibuf; | |
2857 | stream_get(&esi, s, sizeof(esi_t)); | |
2858 | originator_ip.s_addr = stream_get_ipv4(s); | |
2859 | active = stream_getc(s); | |
74e2bd89 | 2860 | df_pref = stream_getw(s); |
74be8313 | 2861 | bypass = stream_getc(s); |
c44ab6f1 AK |
2862 | |
2863 | if (BGP_DEBUG(zebra, ZEBRA)) | |
74e2bd89 | 2864 | zlog_debug( |
74be8313 AK |
2865 | "Rx add ESI %s originator-ip %pI4 active %u df_pref %u %s", |
2866 | esi_to_str(&esi, buf, sizeof(buf)), &originator_ip, | |
2867 | active, df_pref, bypass ? "bypass" : ""); | |
c44ab6f1 | 2868 | |
a383bfc7 AK |
2869 | frrtrace(5, frr_bgp, evpn_mh_local_es_add_zrecv, &esi, originator_ip, |
2870 | active, bypass, df_pref); | |
2871 | ||
74be8313 AK |
2872 | bgp_evpn_local_es_add(bgp, &esi, originator_ip, active, df_pref, |
2873 | !!bypass); | |
c44ab6f1 AK |
2874 | |
2875 | return 0; | |
2876 | } | |
2877 | ||
2878 | static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS) | |
50f74cf1 | 2879 | { |
2880 | esi_t esi; | |
2881 | struct bgp *bgp = NULL; | |
2882 | struct stream *s = NULL; | |
2883 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2884 | |
2885 | memset(&esi, 0, sizeof(esi_t)); | |
c44ab6f1 AK |
2886 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2887 | if (!bgp) | |
2888 | return 0; | |
2889 | ||
2890 | s = zclient->ibuf; | |
2891 | stream_get(&esi, s, sizeof(esi_t)); | |
2892 | ||
2893 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2894 | zlog_debug("Rx del ESI %s", | |
2895 | esi_to_str(&esi, buf, sizeof(buf))); | |
2896 | ||
a383bfc7 AK |
2897 | frrtrace(1, frr_bgp, evpn_mh_local_es_del_zrecv, &esi); |
2898 | ||
c44ab6f1 AK |
2899 | bgp_evpn_local_es_del(bgp, &esi); |
2900 | ||
2901 | return 0; | |
2902 | } | |
2903 | ||
2904 | static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS) | |
2905 | { | |
2906 | esi_t esi; | |
2907 | vni_t vni; | |
2908 | struct bgp *bgp; | |
2909 | struct stream *s; | |
2910 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2911 | |
2912 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2913 | if (!bgp) | |
2914 | return 0; | |
2915 | ||
2916 | s = zclient->ibuf; | |
2917 | stream_get(&esi, s, sizeof(esi_t)); | |
c44ab6f1 | 2918 | vni = stream_getl(s); |
50f74cf1 | 2919 | |
2920 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c44ab6f1 | 2921 | zlog_debug("Rx %s ESI %s VNI %u", |
3756b9ac IS |
2922 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
2923 | esi_to_str(&esi, buf, sizeof(buf)), vni); | |
50f74cf1 | 2924 | |
a383bfc7 AK |
2925 | if (cmd == ZEBRA_LOCAL_ES_EVI_ADD) { |
2926 | frrtrace(2, frr_bgp, evpn_mh_local_es_evi_add_zrecv, &esi, vni); | |
2927 | ||
c44ab6f1 | 2928 | bgp_evpn_local_es_evi_add(bgp, &esi, vni); |
a383bfc7 AK |
2929 | } else { |
2930 | frrtrace(2, frr_bgp, evpn_mh_local_es_evi_del_zrecv, &esi, vni); | |
2931 | ||
c44ab6f1 | 2932 | bgp_evpn_local_es_evi_del(bgp, &esi, vni); |
a383bfc7 | 2933 | } |
c44ab6f1 | 2934 | |
50f74cf1 | 2935 | return 0; |
2936 | } | |
2937 | ||
121f9dee | 2938 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 2939 | { |
c48d9f5f | 2940 | int filter = 0; |
b67a60d2 | 2941 | vni_t l3vni = 0; |
14e814ea | 2942 | struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} }; |
b67a60d2 | 2943 | struct in_addr originator_ip; |
fe1dc5a3 | 2944 | struct stream *s; |
0483af6e | 2945 | ifindex_t svi_ifindex; |
14e814ea | 2946 | bool is_anycast_mac = false; |
fe1dc5a3 | 2947 | |
6006b807 DA |
2948 | memset(&svi_rmac, 0, sizeof(svi_rmac)); |
2949 | memset(&originator_ip, 0, sizeof(originator_ip)); | |
fe1dc5a3 MK |
2950 | s = zclient->ibuf; |
2951 | l3vni = stream_getl(s); | |
b67a60d2 | 2952 | if (cmd == ZEBRA_L3VNI_ADD) { |
14e814ea | 2953 | stream_get(&svi_rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2954 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2955 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2956 | svi_ifindex = stream_getl(s); |
14e814ea CS |
2957 | stream_get(&vrr_rmac, s, sizeof(struct ethaddr)); |
2958 | is_anycast_mac = stream_getl(s); | |
fe1dc5a3 | 2959 | |
0483af6e | 2960 | if (BGP_DEBUG(zebra, ZEBRA)) |
c0d72166 DS |
2961 | zlog_debug( |
2962 | "Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %pEA vrr-mac %pEA filter %s svi-if %u", | |
2963 | vrf_id_to_name(vrf_id), l3vni, &svi_rmac, | |
2964 | &vrr_rmac, | |
2965 | filter ? "prefix-routes-only" : "none", | |
2966 | svi_ifindex); | |
fe1dc5a3 | 2967 | |
a383bfc7 AK |
2968 | frrtrace(8, frr_bgp, evpn_local_l3vni_add_zrecv, l3vni, vrf_id, |
2969 | &svi_rmac, &vrr_rmac, filter, originator_ip, | |
2970 | svi_ifindex, is_anycast_mac); | |
2971 | ||
14e814ea CS |
2972 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac, |
2973 | originator_ip, filter, svi_ifindex, | |
2974 | is_anycast_mac); | |
0483af6e | 2975 | } else { |
2976 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2977 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2978 | vrf_id_to_name(vrf_id), l3vni); | |
2979 | ||
a383bfc7 AK |
2980 | frrtrace(2, frr_bgp, evpn_local_l3vni_del_zrecv, l3vni, vrf_id); |
2981 | ||
fe1dc5a3 | 2982 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 2983 | } |
fe1dc5a3 MK |
2984 | |
2985 | return 0; | |
2986 | } | |
2987 | ||
121f9dee | 2988 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2989 | { |
d62a17ae | 2990 | struct stream *s; |
2991 | vni_t vni; | |
2992 | struct bgp *bgp; | |
a4d82a8a | 2993 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2994 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 2995 | struct in_addr mcast_grp = {INADDR_ANY}; |
9daa5d47 | 2996 | ifindex_t svi_ifindex = 0; |
d62a17ae | 2997 | |
2998 | s = zclient->ibuf; | |
2999 | vni = stream_getl(s); | |
121f9dee | 3000 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 3001 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 3002 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 3003 | mcast_grp.s_addr = stream_get_ipv4(s); |
9daa5d47 | 3004 | stream_get(&svi_ifindex, s, sizeof(ifindex_t)); |
29c53922 MK |
3005 | } |
3006 | ||
d62a17ae | 3007 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
3008 | if (!bgp) | |
3009 | return 0; | |
3010 | ||
3011 | if (BGP_DEBUG(zebra, ZEBRA)) | |
9daa5d47 AD |
3012 | zlog_debug( |
3013 | "Rx VNI %s VRF %s VNI %u tenant-vrf %s SVI ifindex %u", | |
3014 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", | |
3015 | vrf_id_to_name(vrf_id), vni, | |
3016 | vrf_id_to_name(tenant_vrf_id), svi_ifindex); | |
d62a17ae | 3017 | |
a383bfc7 AK |
3018 | if (cmd == ZEBRA_VNI_ADD) { |
3019 | frrtrace(4, frr_bgp, evpn_local_vni_add_zrecv, vni, vtep_ip, | |
3020 | tenant_vrf_id, mcast_grp); | |
3021 | ||
d62a17ae | 3022 | return bgp_evpn_local_vni_add( |
975a328e DA |
3023 | bgp, vni, |
3024 | vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id, | |
9daa5d47 | 3025 | tenant_vrf_id, mcast_grp, svi_ifindex); |
a383bfc7 AK |
3026 | } else { |
3027 | frrtrace(1, frr_bgp, evpn_local_vni_del_zrecv, vni); | |
3028 | ||
d62a17ae | 3029 | return bgp_evpn_local_vni_del(bgp, vni); |
a383bfc7 | 3030 | } |
128ea8ab | 3031 | } |
3032 | ||
121f9dee | 3033 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 3034 | { |
d62a17ae | 3035 | struct stream *s; |
3036 | vni_t vni; | |
3037 | struct bgp *bgp; | |
3038 | struct ethaddr mac; | |
3039 | struct ipaddr ip; | |
3040 | int ipa_len; | |
f07e1c99 | 3041 | uint8_t flags = 0; |
3042 | uint32_t seqnum = 0; | |
ec0ab544 | 3043 | int state = 0; |
c44ab6f1 AK |
3044 | char buf2[ESI_STR_LEN]; |
3045 | esi_t esi; | |
d62a17ae | 3046 | |
3047 | memset(&ip, 0, sizeof(ip)); | |
3048 | s = zclient->ibuf; | |
3049 | vni = stream_getl(s); | |
28328ea9 | 3050 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 3051 | ipa_len = stream_getl(s); |
3052 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
3053 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 3054 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 3055 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 3056 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 3057 | ipa_len); |
d62a17ae | 3058 | return -1; |
3059 | } | |
3060 | ||
3061 | if (ipa_len) { | |
3062 | ip.ipa_type = | |
3063 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
3064 | stream_get(&ip.ip.addr, s, ipa_len); | |
3065 | } | |
121f9dee | 3066 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 3067 | flags = stream_getc(s); |
3068 | seqnum = stream_getl(s); | |
c44ab6f1 | 3069 | stream_get(&esi, s, sizeof(esi_t)); |
ec0ab544 AK |
3070 | } else { |
3071 | state = stream_getl(s); | |
35fb444b | 3072 | memset(&esi, 0, sizeof(esi_t)); |
f07e1c99 | 3073 | } |
d62a17ae | 3074 | |
3075 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
3076 | if (!bgp) | |
3077 | return 0; | |
3078 | ||
3079 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c0d72166 | 3080 | zlog_debug( |
2dd0dde7 | 3081 | "%u:Recv MACIP %s f 0x%x MAC %pEA IP %pIA VNI %u seq %u state %d ESI %s", |
c0d72166 DS |
3082 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags, |
3083 | &mac, &ip, vni, seqnum, state, | |
3084 | esi_to_str(&esi, buf2, sizeof(buf2))); | |
d62a17ae | 3085 | |
a383bfc7 AK |
3086 | if (cmd == ZEBRA_MACIP_ADD) { |
3087 | frrtrace(6, frr_bgp, evpn_local_macip_add_zrecv, vni, &mac, &ip, | |
3088 | flags, seqnum, &esi); | |
3089 | ||
f07e1c99 | 3090 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
c44ab6f1 | 3091 | flags, seqnum, &esi); |
a383bfc7 AK |
3092 | } else { |
3093 | frrtrace(4, frr_bgp, evpn_local_macip_del_zrecv, vni, &mac, &ip, | |
3094 | state); | |
3095 | ||
ec0ab544 | 3096 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
a383bfc7 | 3097 | } |
128ea8ab | 3098 | } |
6aeb9e78 | 3099 | |
a243d1db | 3100 | static int bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
3101 | { |
3102 | struct stream *s = NULL; | |
3103 | struct bgp *bgp_vrf = NULL; | |
3104 | struct prefix p; | |
31310b25 | 3105 | |
6006b807 | 3106 | memset(&p, 0, sizeof(p)); |
31310b25 MK |
3107 | s = zclient->ibuf; |
3108 | stream_get(&p, s, sizeof(struct prefix)); | |
3109 | ||
3110 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
3111 | if (!bgp_vrf) | |
a243d1db | 3112 | return 0; |
31310b25 MK |
3113 | |
3114 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2dbe669b | 3115 | zlog_debug("Recv prefix %pFX %s on vrf %s", &p, |
31310b25 MK |
3116 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", |
3117 | vrf_id_to_name(vrf_id)); | |
3118 | ||
3119 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
3120 | ||
3121 | if (p.family == AF_INET) | |
d90b788e A |
3122 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
3123 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 3124 | else |
d90b788e A |
3125 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
3126 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
3127 | |
3128 | } else { | |
3129 | if (p.family == AF_INET) | |
d90b788e A |
3130 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
3131 | SAFI_UNICAST); | |
31310b25 | 3132 | else |
d90b788e A |
3133 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
3134 | SAFI_UNICAST); | |
31310b25 | 3135 | } |
a243d1db | 3136 | return 0; |
31310b25 MK |
3137 | } |
3138 | ||
a243d1db | 3139 | static int bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
3140 | { |
3141 | struct stream *s = NULL; | |
3142 | uint8_t response_keep; | |
3143 | uint32_t first; | |
3144 | uint32_t last; | |
aec865e4 FR |
3145 | uint8_t proto; |
3146 | unsigned short instance; | |
955bfd98 PZ |
3147 | |
3148 | s = zclient->ibuf; | |
aec865e4 FR |
3149 | STREAM_GETC(s, proto); |
3150 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
3151 | STREAM_GETC(s, response_keep); |
3152 | STREAM_GETL(s, first); | |
3153 | STREAM_GETL(s, last); | |
3154 | ||
aec865e4 | 3155 | if (zclient->redist_default != proto) { |
e50f7cfd | 3156 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 3157 | proto); |
a243d1db | 3158 | return 0; |
aec865e4 FR |
3159 | } |
3160 | if (zclient->instance != instance) { | |
e50f7cfd | 3161 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 3162 | proto); |
a243d1db | 3163 | return 0; |
aec865e4 FR |
3164 | } |
3165 | ||
955bfd98 PZ |
3166 | if (first > last || |
3167 | first < MPLS_LABEL_UNRESERVED_MIN || | |
3168 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
3169 | ||
e50f7cfd | 3170 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 3171 | __func__, first, last); |
a243d1db | 3172 | return 0; |
955bfd98 PZ |
3173 | } |
3174 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3175 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
3176 | first, last, response_keep); | |
3177 | } | |
3178 | ||
e70e9f8e | 3179 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 | 3180 | |
a243d1db DL |
3181 | return 0; |
3182 | ||
955bfd98 | 3183 | stream_failure: /* for STREAM_GETX */ |
a243d1db | 3184 | return -1; |
955bfd98 PZ |
3185 | } |
3186 | ||
342213ea DS |
3187 | extern struct zebra_privs_t bgpd_privs; |
3188 | ||
138c5a74 DS |
3189 | static int bgp_ifp_create(struct interface *ifp) |
3190 | { | |
ef7bd2a3 DS |
3191 | struct bgp *bgp; |
3192 | ||
3193 | if (BGP_DEBUG(zebra, ZEBRA)) | |
096f7609 IR |
3194 | zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf->vrf_id, |
3195 | ifp->name); | |
ef7bd2a3 | 3196 | |
096f7609 | 3197 | bgp = ifp->vrf->info; |
ef7bd2a3 DS |
3198 | if (!bgp) |
3199 | return 0; | |
3200 | ||
3201 | bgp_mac_add_mac_entry(ifp); | |
3202 | ||
3203 | bgp_update_interface_nbrs(bgp, ifp, ifp); | |
0d020cd6 | 3204 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
138c5a74 DS |
3205 | return 0; |
3206 | } | |
3207 | ||
a243d1db | 3208 | static int bgp_zebra_process_srv6_locator_chunk(ZAPI_CALLBACK_ARGS) |
a0281b2e HS |
3209 | { |
3210 | struct stream *s = NULL; | |
7de4c885 HS |
3211 | struct bgp *bgp = bgp_get_default(); |
3212 | struct listnode *node; | |
1c21a234 NM |
3213 | struct srv6_locator_chunk *c; |
3214 | struct srv6_locator_chunk *chunk = srv6_locator_chunk_alloc(); | |
a0281b2e HS |
3215 | |
3216 | s = zclient->ibuf; | |
1c21a234 | 3217 | zapi_srv6_locator_chunk_decode(s, chunk); |
a0281b2e | 3218 | |
1c21a234 | 3219 | if (strcmp(bgp->srv6_locator_name, chunk->locator_name) != 0) { |
3a0220e4 | 3220 | zlog_err("%s: Locator name unmatch %s:%s", __func__, |
1c21a234 | 3221 | bgp->srv6_locator_name, chunk->locator_name); |
69467313 | 3222 | srv6_locator_chunk_free(&chunk); |
a243d1db | 3223 | return 0; |
a0281b2e HS |
3224 | } |
3225 | ||
a0281b2e | 3226 | for (ALL_LIST_ELEMENTS_RO(bgp->srv6_locator_chunks, node, c)) { |
1c21a234 | 3227 | if (!prefix_cmp(&c->prefix, &chunk->prefix)) { |
69467313 | 3228 | srv6_locator_chunk_free(&chunk); |
a243d1db | 3229 | return 0; |
1c21a234 | 3230 | } |
a0281b2e HS |
3231 | } |
3232 | ||
3233 | listnode_add(bgp->srv6_locator_chunks, chunk); | |
3234 | vpn_leak_postchange_all(); | |
a243d1db | 3235 | return 0; |
a0281b2e HS |
3236 | } |
3237 | ||
d79ff732 HS |
3238 | static int bgp_zebra_process_srv6_locator_add(ZAPI_CALLBACK_ARGS) |
3239 | { | |
3240 | struct srv6_locator loc = {}; | |
3241 | struct bgp *bgp = bgp_get_default(); | |
3242 | const char *loc_name = bgp->srv6_locator_name; | |
3243 | ||
3244 | if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0) | |
3245 | return -1; | |
3246 | ||
3247 | if (!bgp || !bgp->srv6_enabled) | |
3248 | return 0; | |
3249 | ||
3250 | if (bgp_zebra_srv6_manager_get_locator_chunk(loc_name) < 0) | |
3251 | return -1; | |
3252 | ||
3253 | return 0; | |
3254 | } | |
3255 | ||
3256 | static int bgp_zebra_process_srv6_locator_delete(ZAPI_CALLBACK_ARGS) | |
3257 | { | |
3258 | struct srv6_locator loc = {}; | |
3259 | struct bgp *bgp = bgp_get_default(); | |
3260 | struct listnode *node, *nnode; | |
bee2e7d0 | 3261 | struct srv6_locator_chunk *chunk, *tovpn_sid_locator; |
d79ff732 HS |
3262 | struct bgp_srv6_function *func; |
3263 | struct bgp *bgp_vrf; | |
bee2e7d0 | 3264 | struct in6_addr *tovpn_sid; |
d79ff732 HS |
3265 | struct prefix_ipv6 tmp_prefi; |
3266 | ||
3267 | if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0) | |
3268 | return -1; | |
3269 | ||
3270 | // refresh chunks | |
3271 | for (ALL_LIST_ELEMENTS(bgp->srv6_locator_chunks, node, nnode, chunk)) | |
3272 | if (prefix_match((struct prefix *)&loc.prefix, | |
03852f67 | 3273 | (struct prefix *)&chunk->prefix)) { |
d79ff732 | 3274 | listnode_delete(bgp->srv6_locator_chunks, chunk); |
69467313 | 3275 | srv6_locator_chunk_free(&chunk); |
03852f67 | 3276 | } |
d79ff732 HS |
3277 | |
3278 | // refresh functions | |
3279 | for (ALL_LIST_ELEMENTS(bgp->srv6_functions, node, nnode, func)) { | |
3280 | tmp_prefi.family = AF_INET6; | |
3281 | tmp_prefi.prefixlen = 128; | |
3282 | tmp_prefi.prefix = func->sid; | |
3283 | if (prefix_match((struct prefix *)&loc.prefix, | |
bda15542 | 3284 | (struct prefix *)&tmp_prefi)) { |
d79ff732 | 3285 | listnode_delete(bgp->srv6_functions, func); |
bda15542 CS |
3286 | XFREE(MTYPE_BGP_SRV6_FUNCTION, func); |
3287 | } | |
d79ff732 HS |
3288 | } |
3289 | ||
3290 | // refresh tovpn_sid | |
3291 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp_vrf)) { | |
3292 | if (bgp_vrf->inst_type != BGP_INSTANCE_TYPE_VRF) | |
3293 | continue; | |
3294 | ||
3295 | // refresh vpnv4 tovpn_sid | |
3296 | tovpn_sid = bgp_vrf->vpn_policy[AFI_IP].tovpn_sid; | |
3297 | if (tovpn_sid) { | |
3298 | tmp_prefi.family = AF_INET6; | |
3299 | tmp_prefi.prefixlen = 128; | |
3300 | tmp_prefi.prefix = *tovpn_sid; | |
3301 | if (prefix_match((struct prefix *)&loc.prefix, | |
3302 | (struct prefix *)&tmp_prefi)) | |
3303 | XFREE(MTYPE_BGP_SRV6_SID, | |
3304 | bgp_vrf->vpn_policy[AFI_IP].tovpn_sid); | |
3305 | } | |
3306 | ||
3307 | // refresh vpnv6 tovpn_sid | |
3308 | tovpn_sid = bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid; | |
3309 | if (tovpn_sid) { | |
3310 | tmp_prefi.family = AF_INET6; | |
3311 | tmp_prefi.prefixlen = 128; | |
3312 | tmp_prefi.prefix = *tovpn_sid; | |
3313 | if (prefix_match((struct prefix *)&loc.prefix, | |
3314 | (struct prefix *)&tmp_prefi)) | |
3315 | XFREE(MTYPE_BGP_SRV6_SID, | |
3316 | bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid); | |
3317 | } | |
527588aa CS |
3318 | |
3319 | /* refresh per-vrf tovpn_sid */ | |
3320 | tovpn_sid = bgp_vrf->tovpn_sid; | |
3321 | if (tovpn_sid) { | |
3322 | tmp_prefi.family = AF_INET6; | |
3323 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
3324 | tmp_prefi.prefix = *tovpn_sid; | |
3325 | if (prefix_match((struct prefix *)&loc.prefix, | |
3326 | (struct prefix *)&tmp_prefi)) | |
3327 | XFREE(MTYPE_BGP_SRV6_SID, bgp_vrf->tovpn_sid); | |
3328 | } | |
d79ff732 HS |
3329 | } |
3330 | ||
3331 | vpn_leak_postchange_all(); | |
f8e9c702 CS |
3332 | |
3333 | /* refresh tovpn_sid_locator */ | |
3334 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp_vrf)) { | |
3335 | if (bgp_vrf->inst_type != BGP_INSTANCE_TYPE_VRF) | |
3336 | continue; | |
3337 | ||
3338 | /* refresh vpnv4 tovpn_sid_locator */ | |
3339 | tovpn_sid_locator = | |
3340 | bgp_vrf->vpn_policy[AFI_IP].tovpn_sid_locator; | |
3341 | if (tovpn_sid_locator) { | |
3342 | tmp_prefi.family = AF_INET6; | |
3343 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
bee2e7d0 | 3344 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; |
f8e9c702 | 3345 | if (prefix_match((struct prefix *)&loc.prefix, |
a1d5e05f | 3346 | (struct prefix *)&tmp_prefi)) |
69467313 CS |
3347 | srv6_locator_chunk_free( |
3348 | &bgp_vrf->vpn_policy[AFI_IP] | |
3349 | .tovpn_sid_locator); | |
f8e9c702 CS |
3350 | } |
3351 | ||
3352 | /* refresh vpnv6 tovpn_sid_locator */ | |
3353 | tovpn_sid_locator = | |
3354 | bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid_locator; | |
3355 | if (tovpn_sid_locator) { | |
3356 | tmp_prefi.family = AF_INET6; | |
3357 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
bee2e7d0 | 3358 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; |
f8e9c702 | 3359 | if (prefix_match((struct prefix *)&loc.prefix, |
a1d5e05f | 3360 | (struct prefix *)&tmp_prefi)) |
69467313 CS |
3361 | srv6_locator_chunk_free( |
3362 | &bgp_vrf->vpn_policy[AFI_IP6] | |
3363 | .tovpn_sid_locator); | |
f8e9c702 | 3364 | } |
527588aa CS |
3365 | |
3366 | /* refresh per-vrf tovpn_sid_locator */ | |
3367 | tovpn_sid_locator = bgp_vrf->tovpn_sid_locator; | |
3368 | if (tovpn_sid_locator) { | |
3369 | tmp_prefi.family = AF_INET6; | |
3370 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
3371 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; | |
3372 | if (prefix_match((struct prefix *)&loc.prefix, | |
3373 | (struct prefix *)&tmp_prefi)) | |
69467313 CS |
3374 | srv6_locator_chunk_free( |
3375 | &bgp_vrf->tovpn_sid_locator); | |
527588aa | 3376 | } |
f8e9c702 CS |
3377 | } |
3378 | ||
d79ff732 HS |
3379 | return 0; |
3380 | } | |
3381 | ||
a243d1db DL |
3382 | static zclient_handler *const bgp_handlers[] = { |
3383 | [ZEBRA_ROUTER_ID_UPDATE] = bgp_router_id_update, | |
3384 | [ZEBRA_INTERFACE_ADDRESS_ADD] = bgp_interface_address_add, | |
3385 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = bgp_interface_address_delete, | |
3386 | [ZEBRA_INTERFACE_NBR_ADDRESS_ADD] = bgp_interface_nbr_address_add, | |
3387 | [ZEBRA_INTERFACE_NBR_ADDRESS_DELETE] = bgp_interface_nbr_address_delete, | |
3388 | [ZEBRA_INTERFACE_VRF_UPDATE] = bgp_interface_vrf_update, | |
3389 | [ZEBRA_REDISTRIBUTE_ROUTE_ADD] = zebra_read_route, | |
3390 | [ZEBRA_REDISTRIBUTE_ROUTE_DEL] = zebra_read_route, | |
3391 | [ZEBRA_NEXTHOP_UPDATE] = bgp_read_nexthop_update, | |
3392 | [ZEBRA_FEC_UPDATE] = bgp_read_fec_update, | |
3393 | [ZEBRA_LOCAL_ES_ADD] = bgp_zebra_process_local_es_add, | |
3394 | [ZEBRA_LOCAL_ES_DEL] = bgp_zebra_process_local_es_del, | |
3395 | [ZEBRA_VNI_ADD] = bgp_zebra_process_local_vni, | |
3396 | [ZEBRA_LOCAL_ES_EVI_ADD] = bgp_zebra_process_local_es_evi, | |
3397 | [ZEBRA_LOCAL_ES_EVI_DEL] = bgp_zebra_process_local_es_evi, | |
3398 | [ZEBRA_VNI_DEL] = bgp_zebra_process_local_vni, | |
3399 | [ZEBRA_MACIP_ADD] = bgp_zebra_process_local_macip, | |
3400 | [ZEBRA_MACIP_DEL] = bgp_zebra_process_local_macip, | |
3401 | [ZEBRA_L3VNI_ADD] = bgp_zebra_process_local_l3vni, | |
3402 | [ZEBRA_L3VNI_DEL] = bgp_zebra_process_local_l3vni, | |
3403 | [ZEBRA_IP_PREFIX_ROUTE_ADD] = bgp_zebra_process_local_ip_prefix, | |
3404 | [ZEBRA_IP_PREFIX_ROUTE_DEL] = bgp_zebra_process_local_ip_prefix, | |
3405 | [ZEBRA_GET_LABEL_CHUNK] = bgp_zebra_process_label_chunk, | |
3406 | [ZEBRA_RULE_NOTIFY_OWNER] = rule_notify_owner, | |
3407 | [ZEBRA_IPSET_NOTIFY_OWNER] = ipset_notify_owner, | |
3408 | [ZEBRA_IPSET_ENTRY_NOTIFY_OWNER] = ipset_entry_notify_owner, | |
3409 | [ZEBRA_IPTABLE_NOTIFY_OWNER] = iptable_notify_owner, | |
3410 | [ZEBRA_ROUTE_NOTIFY_OWNER] = bgp_zebra_route_notify_owner, | |
3411 | [ZEBRA_SRV6_LOCATOR_ADD] = bgp_zebra_process_srv6_locator_add, | |
3412 | [ZEBRA_SRV6_LOCATOR_DELETE] = bgp_zebra_process_srv6_locator_delete, | |
3413 | [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK] = | |
3414 | bgp_zebra_process_srv6_locator_chunk, | |
70cd87ca | 3415 | [ZEBRA_OPAQUE_MESSAGE] = bgp_opaque_msg_handler, |
a243d1db DL |
3416 | }; |
3417 | ||
4cd690ae PG |
3418 | static int bgp_if_new_hook(struct interface *ifp) |
3419 | { | |
3420 | struct bgp_interface *iifp; | |
3421 | ||
3422 | if (ifp->info) | |
3423 | return 0; | |
3424 | iifp = XCALLOC(MTYPE_BGP_IF_INFO, sizeof(struct bgp_interface)); | |
3425 | ifp->info = iifp; | |
3426 | ||
3427 | return 0; | |
3428 | } | |
3429 | ||
3430 | static int bgp_if_delete_hook(struct interface *ifp) | |
3431 | { | |
3432 | XFREE(MTYPE_BGP_IF_INFO, ifp->info); | |
3433 | return 0; | |
3434 | } | |
3435 | ||
3436 | void bgp_if_init(void) | |
3437 | { | |
3438 | /* Initialize Zebra interface data structure. */ | |
3439 | hook_register_prio(if_add, 0, bgp_if_new_hook); | |
3440 | hook_register_prio(if_del, 0, bgp_if_delete_hook); | |
3441 | } | |
3442 | ||
f533be73 | 3443 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 3444 | { |
d62a17ae | 3445 | zclient_num_connects = 0; |
3446 | ||
138c5a74 DS |
3447 | if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up, |
3448 | bgp_ifp_down, bgp_ifp_destroy); | |
3449 | ||
d62a17ae | 3450 | /* Set default values. */ |
a243d1db DL |
3451 | zclient = zclient_new(master, &zclient_options_default, bgp_handlers, |
3452 | array_size(bgp_handlers)); | |
342213ea | 3453 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 3454 | zclient->zebra_connected = bgp_zebra_connected; |
f533be73 | 3455 | zclient->instance = instance; |
718e3744 | 3456 | } |
bb86c601 | 3457 | |
d62a17ae | 3458 | void bgp_zebra_destroy(void) |
bb86c601 | 3459 | { |
d62a17ae | 3460 | if (zclient == NULL) |
3461 | return; | |
3462 | zclient_stop(zclient); | |
3463 | zclient_free(zclient); | |
3464 | zclient = NULL; | |
bb86c601 | 3465 | } |
afbb1c59 | 3466 | |
d62a17ae | 3467 | int bgp_zebra_num_connects(void) |
afbb1c59 | 3468 | { |
d62a17ae | 3469 | return zclient_num_connects; |
afbb1c59 | 3470 | } |
30d50e6d | 3471 | |
6cfe5d15 PG |
3472 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
3473 | struct bgp_pbr_rule *pbr, | |
3474 | bool install) | |
30d50e6d PG |
3475 | { |
3476 | struct stream *s; | |
3477 | ||
6cfe5d15 | 3478 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 3479 | return; |
6cfe5d15 PG |
3480 | if (pbr && pbr->install_in_progress) |
3481 | return; | |
3482 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3483 | if (pbr) | |
15569c58 | 3484 | zlog_debug("%s: table %d (ip rule) %d", __func__, |
6cfe5d15 PG |
3485 | pbra->table_id, install); |
3486 | else | |
15569c58 | 3487 | zlog_debug("%s: table %d fwmark %d %d", __func__, |
6cfe5d15 PG |
3488 | pbra->table_id, pbra->fwmark, install); |
3489 | } | |
30d50e6d PG |
3490 | s = zclient->obuf; |
3491 | stream_reset(s); | |
3492 | ||
3493 | zclient_create_header(s, | |
3494 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
3495 | VRF_DEFAULT); | |
3496 | stream_putl(s, 1); /* send one pbr action */ | |
3497 | ||
6cfe5d15 | 3498 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
3499 | |
3500 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e DS |
3501 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) |
3502 | && install) { | |
6cfe5d15 PG |
3503 | if (!pbr) |
3504 | pbra->install_in_progress = true; | |
3505 | else | |
3506 | pbr->install_in_progress = true; | |
3507 | } | |
30d50e6d PG |
3508 | } |
3509 | ||
3510 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
3511 | { | |
3512 | struct stream *s; | |
3513 | ||
3514 | if (pbrim->install_in_progress) | |
3515 | return; | |
f0936054 | 3516 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3517 | zlog_debug("%s: name %s type %d %d, ID %u", __func__, |
3518 | pbrim->ipset_name, pbrim->type, install, | |
3519 | pbrim->unique); | |
30d50e6d PG |
3520 | s = zclient->obuf; |
3521 | stream_reset(s); | |
3522 | ||
3523 | zclient_create_header(s, | |
3524 | install ? ZEBRA_IPSET_CREATE : | |
3525 | ZEBRA_IPSET_DESTROY, | |
3526 | VRF_DEFAULT); | |
3527 | ||
3528 | stream_putl(s, 1); /* send one pbr action */ | |
3529 | ||
3530 | bgp_encode_pbr_ipset_match(s, pbrim); | |
3531 | ||
3532 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3533 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3534 | pbrim->install_in_progress = true; |
3535 | } | |
3536 | ||
3537 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
3538 | bool install) | |
3539 | { | |
3540 | struct stream *s; | |
3541 | ||
3542 | if (pbrime->install_in_progress) | |
3543 | return; | |
f0936054 | 3544 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3545 | zlog_debug("%s: name %s %d %d, ID %u", __func__, |
3546 | pbrime->backpointer->ipset_name, pbrime->unique, | |
3547 | install, pbrime->unique); | |
30d50e6d PG |
3548 | s = zclient->obuf; |
3549 | stream_reset(s); | |
3550 | ||
3551 | zclient_create_header(s, | |
3552 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
3553 | ZEBRA_IPSET_ENTRY_DELETE, | |
3554 | VRF_DEFAULT); | |
3555 | ||
3556 | stream_putl(s, 1); /* send one pbr action */ | |
3557 | ||
3558 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
3559 | ||
3560 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3561 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3562 | pbrime->install_in_progress = true; |
3563 | } | |
c16a0a62 | 3564 | |
8f242187 PG |
3565 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s, |
3566 | uint8_t family) | |
4762c213 PG |
3567 | { |
3568 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3569 | struct bgp_pbr_interface_head *head; | |
3570 | struct bgp_pbr_interface *pbr_if; | |
3571 | struct interface *ifp; | |
3572 | ||
3573 | if (!bgp_pbr_cfg) | |
3574 | return; | |
8f242187 PG |
3575 | if (family == AF_INET) |
3576 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3577 | else | |
3578 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3579 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3580 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); |
4762c213 PG |
3581 | if (ifp) |
3582 | stream_putl(s, ifp->ifindex); | |
3583 | } | |
3584 | } | |
3585 | ||
8f242187 | 3586 | static int bgp_pbr_get_ifnumber(struct bgp *bgp, 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 | int cnt = 0; | |
3592 | ||
3593 | if (!bgp_pbr_cfg) | |
3594 | return 0; | |
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 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) |
4762c213 PG |
3601 | cnt++; |
3602 | } | |
3603 | return cnt; | |
3604 | } | |
3605 | ||
c16a0a62 PG |
3606 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
3607 | struct bgp_pbr_match *pbm, | |
3608 | bool install) | |
3609 | { | |
3610 | struct stream *s; | |
b5c40105 | 3611 | int ret = 0; |
4762c213 | 3612 | int nb_interface; |
c16a0a62 PG |
3613 | |
3614 | if (pbm->install_iptable_in_progress) | |
3615 | return; | |
f0936054 | 3616 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3617 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__, |
3618 | pbm->ipset_name, pbm->type, pba->fwmark, install, | |
88055124 | 3619 | pbm->unique2); |
c16a0a62 PG |
3620 | s = zclient->obuf; |
3621 | stream_reset(s); | |
3622 | ||
3623 | zclient_create_header(s, | |
3624 | install ? ZEBRA_IPTABLE_ADD : | |
3625 | ZEBRA_IPTABLE_DELETE, | |
3626 | VRF_DEFAULT); | |
3627 | ||
3628 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
8f242187 | 3629 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family); |
4762c213 PG |
3630 | stream_putl(s, nb_interface); |
3631 | if (nb_interface) | |
8f242187 | 3632 | bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family); |
c16a0a62 | 3633 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
3634 | ret = zclient_send_message(zclient); |
3635 | if (install) { | |
8a3f8f2e | 3636 | if (ret != ZCLIENT_SEND_FAILURE) |
b5c40105 PG |
3637 | pba->refcnt++; |
3638 | else | |
3639 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 3640 | } |
c16a0a62 | 3641 | } |
f7df1907 PG |
3642 | |
3643 | /* inject in table <table_id> a default route to: | |
3644 | * - if nexthop IP is present : to this nexthop | |
3645 | * - if vrf is different from local : to the matching VRF | |
3646 | */ | |
3647 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
3648 | afi_t afi, uint32_t table_id, bool announce) | |
3649 | { | |
3650 | struct zapi_nexthop *api_nh; | |
3651 | struct zapi_route api; | |
3652 | struct prefix p; | |
3653 | ||
f01e580f PG |
3654 | if (!nh || (nh->type != NEXTHOP_TYPE_IPV4 |
3655 | && nh->type != NEXTHOP_TYPE_IPV6) | |
f7df1907 PG |
3656 | || nh->vrf_id == VRF_UNKNOWN) |
3657 | return; | |
7afeaffa PG |
3658 | |
3659 | /* in vrf-lite, no default route has to be announced | |
3660 | * the table id of vrf is directly used to divert traffic | |
3661 | */ | |
3662 | if (!vrf_is_backend_netns() && bgp->vrf_id != nh->vrf_id) | |
3663 | return; | |
3664 | ||
6006b807 | 3665 | memset(&p, 0, sizeof(p)); |
f01e580f | 3666 | if (afi != AFI_IP && afi != AFI_IP6) |
f7df1907 | 3667 | return; |
f01e580f | 3668 | p.family = afi2family(afi); |
f7df1907 PG |
3669 | memset(&api, 0, sizeof(api)); |
3670 | api.vrf_id = bgp->vrf_id; | |
3671 | api.type = ZEBRA_ROUTE_BGP; | |
3672 | api.safi = SAFI_UNICAST; | |
3673 | api.prefix = p; | |
3674 | api.tableid = table_id; | |
3675 | api.nexthop_num = 1; | |
3676 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
3677 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
3678 | api_nh = &api.nexthops[0]; | |
3679 | ||
38a8c751 DS |
3680 | api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT; |
3681 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
3682 | ||
f7df1907 | 3683 | /* redirect IP */ |
f01e580f | 3684 | if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) { |
f7df1907 PG |
3685 | api_nh->vrf_id = nh->vrf_id; |
3686 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
3687 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
3688 | ||
f7df1907 | 3689 | if (BGP_DEBUG(zebra, ZEBRA)) |
07380148 DA |
3690 | zlog_debug( |
3691 | "BGP: %s default route to %pI4 table %d (redirect IP)", | |
3692 | announce ? "adding" : "withdrawing", | |
3693 | &nh->gate.ipv4, table_id); | |
3694 | ||
f01e580f PG |
3695 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD |
3696 | : ZEBRA_ROUTE_DELETE, | |
3697 | zclient, &api); | |
3698 | } else if (afi == AFI_IP6 && | |
3699 | memcmp(&nh->gate.ipv6, | |
3700 | &in6addr_any, sizeof(struct in6_addr))) { | |
f01e580f PG |
3701 | api_nh->vrf_id = nh->vrf_id; |
3702 | memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, | |
3703 | sizeof(struct in6_addr)); | |
3704 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
3705 | ||
f01e580f | 3706 | if (BGP_DEBUG(zebra, ZEBRA)) |
07380148 DA |
3707 | zlog_debug( |
3708 | "BGP: %s default route to %pI6 table %d (redirect IP)", | |
3709 | announce ? "adding" : "withdrawing", | |
3710 | &nh->gate.ipv6, table_id); | |
3711 | ||
f7df1907 PG |
3712 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD |
3713 | : ZEBRA_ROUTE_DELETE, | |
3714 | zclient, &api); | |
3715 | } else if (nh->vrf_id != bgp->vrf_id) { | |
3716 | struct vrf *vrf; | |
eb4244f8 | 3717 | struct interface *ifp; |
f7df1907 | 3718 | |
eb4244f8 | 3719 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
3720 | if (!vrf) |
3721 | return; | |
eb4244f8 PG |
3722 | /* create default route with interface <VRF> |
3723 | * with nexthop-vrf <VRF> | |
f7df1907 | 3724 | */ |
de4f1a66 | 3725 | ifp = if_lookup_by_name_vrf(vrf->name, vrf); |
eb4244f8 PG |
3726 | if (!ifp) |
3727 | return; | |
3728 | api_nh->vrf_id = nh->vrf_id; | |
3729 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
3730 | api_nh->ifindex = ifp->ifindex; | |
3731 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3732 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
3733 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
3734 | vrf->name, table_id); |
3735 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3736 | : ZEBRA_ROUTE_DELETE, | |
3737 | zclient, &api); | |
f7df1907 PG |
3738 | return; |
3739 | } | |
3740 | } | |
85ef4179 | 3741 | |
3742 | /* Send capabilities to RIB */ | |
3743 | int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable) | |
3744 | { | |
3745 | struct zapi_cap api; | |
3746 | int ret = BGP_GR_SUCCESS; | |
3747 | ||
3748 | if (zclient == NULL) { | |
3749 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3750 | zlog_debug("zclient invalid"); | |
3751 | return BGP_GR_FAILURE; | |
3752 | } | |
3753 | ||
3754 | /* Check if the client is connected */ | |
3755 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3756 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3757 | zlog_debug("client not connected"); | |
3758 | return BGP_GR_FAILURE; | |
3759 | } | |
3760 | ||
3761 | /* Check if capability is already sent. If the flag force is set | |
3762 | * send the capability since this can be initial bgp configuration | |
3763 | */ | |
6006b807 | 3764 | memset(&api, 0, sizeof(api)); |
85ef4179 | 3765 | if (disable) { |
3766 | api.cap = ZEBRA_CLIENT_GR_DISABLE; | |
3767 | api.vrf_id = bgp->vrf_id; | |
3768 | } else { | |
3769 | api.cap = ZEBRA_CLIENT_GR_CAPABILITIES; | |
3770 | api.stale_removal_time = bgp->rib_stale_time; | |
3771 | api.vrf_id = bgp->vrf_id; | |
3772 | } | |
3773 | ||
36235319 | 3774 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3775 | == ZCLIENT_SEND_FAILURE) { |
2ba1fe69 | 3776 | zlog_err("error sending capability"); |
85ef4179 | 3777 | ret = BGP_GR_FAILURE; |
3778 | } else { | |
3779 | if (disable) | |
3780 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; | |
3781 | else | |
3782 | bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE; | |
3783 | ||
3784 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3785 | zlog_debug("send capabilty success"); | |
3786 | ret = BGP_GR_SUCCESS; | |
3787 | } | |
3788 | return ret; | |
3789 | } | |
3790 | ||
3791 | /* Send route update pesding or completed status to RIB for the | |
3792 | * specific AFI, SAFI | |
3793 | */ | |
3794 | int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type) | |
3795 | { | |
2ba1fe69 | 3796 | struct zapi_cap api = {0}; |
85ef4179 | 3797 | |
3798 | if (zclient == NULL) { | |
3799 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2ba1fe69 | 3800 | zlog_debug("zclient == NULL, invalid"); |
85ef4179 | 3801 | return BGP_GR_FAILURE; |
3802 | } | |
3803 | ||
3804 | /* Check if the client is connected */ | |
3805 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3806 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3807 | zlog_debug("client not connected"); | |
3808 | return BGP_GR_FAILURE; | |
3809 | } | |
3810 | ||
85ef4179 | 3811 | api.afi = afi; |
3812 | api.safi = safi; | |
3813 | api.vrf_id = vrf_id; | |
3814 | api.cap = type; | |
3815 | ||
36235319 | 3816 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3817 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3818 | if (BGP_DEBUG(zebra, ZEBRA)) |
3819 | zlog_debug("error sending capability"); | |
3820 | return BGP_GR_FAILURE; | |
3821 | } | |
3822 | return BGP_GR_SUCCESS; | |
3823 | } | |
3824 | ||
3825 | ||
85ef4179 | 3826 | /* Send RIB stale timer update */ |
3827 | int bgp_zebra_stale_timer_update(struct bgp *bgp) | |
3828 | { | |
3829 | struct zapi_cap api; | |
3830 | ||
3831 | if (zclient == NULL) { | |
3832 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3833 | zlog_debug("zclient invalid"); | |
3834 | return BGP_GR_FAILURE; | |
3835 | } | |
3836 | ||
3837 | /* Check if the client is connected */ | |
3838 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3839 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3840 | zlog_debug("client not connected"); | |
3841 | return BGP_GR_FAILURE; | |
3842 | } | |
3843 | ||
6006b807 | 3844 | memset(&api, 0, sizeof(api)); |
85ef4179 | 3845 | api.cap = ZEBRA_CLIENT_RIB_STALE_TIME; |
3846 | api.stale_removal_time = bgp->rib_stale_time; | |
3847 | api.vrf_id = bgp->vrf_id; | |
36235319 | 3848 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3849 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3850 | if (BGP_DEBUG(zebra, ZEBRA)) |
3851 | zlog_debug("error sending capability"); | |
3852 | return BGP_GR_FAILURE; | |
3853 | } | |
3854 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3855 | zlog_debug("send capabilty success"); | |
3856 | return BGP_GR_SUCCESS; | |
3857 | } | |
a0281b2e HS |
3858 | |
3859 | int bgp_zebra_srv6_manager_get_locator_chunk(const char *name) | |
3860 | { | |
3861 | return srv6_manager_get_locator_chunk(zclient, name); | |
3862 | } | |
0249b8b6 HS |
3863 | |
3864 | int bgp_zebra_srv6_manager_release_locator_chunk(const char *name) | |
3865 | { | |
3866 | return srv6_manager_release_locator_chunk(zclient, name); | |
3867 | } | |
70cd87ca MK |
3868 | |
3869 | /* | |
3870 | * ORR messages between processes | |
3871 | */ | |
3872 | static int bgp_opaque_msg_handler(ZAPI_CALLBACK_ARGS) | |
3873 | { | |
3874 | struct stream *s; | |
3875 | struct zapi_opaque_msg info; | |
3876 | struct orr_igp_metric_info table; | |
3877 | int ret = 0; | |
3878 | ||
3879 | s = zclient->ibuf; | |
3880 | ||
3881 | if (zclient_opaque_decode(s, &info) != 0) { | |
3882 | bgp_orr_debug("%s: opaque decode failed", __func__); | |
3883 | return -1; | |
3884 | } | |
3885 | ||
3886 | switch (info.type) { | |
3887 | case ORR_IGP_METRIC_UPDATE: | |
3888 | STREAM_GET(&table, s, sizeof(table)); | |
3889 | ret = bgg_orr_message_process(BGP_ORR_IMSG_IGP_METRIC_UPDATE, | |
3890 | (void *)&table); | |
3891 | break; | |
3892 | default: | |
3893 | break; | |
3894 | } | |
3895 | ||
3896 | stream_failure: | |
3897 | return ret; | |
3898 | } |