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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; | |
6030b8b4 | 237 | struct bgp *bgp_default = bgp_get_default(); |
d62a17ae | 238 | struct bgp *bgp; |
6aeb9e78 | 239 | |
096f7609 | 240 | bgp = ifp->vrf->info; |
718e3744 | 241 | |
6a69ac51 DS |
242 | bgp_mac_add_mac_entry(ifp); |
243 | ||
d62a17ae | 244 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
245 | zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf->vrf_id, |
246 | ifp->name); | |
ad4cbda1 | 247 | |
85751d1d DS |
248 | if (!bgp) |
249 | return 0; | |
250 | ||
d62a17ae | 251 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
252 | bgp_connected_add(bgp, c); | |
718e3744 | 253 | |
d62a17ae | 254 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
255 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 256 | |
0d020cd6 | 257 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
8761cd6d DS |
258 | bgp_nht_ifp_up(ifp); |
259 | ||
6030b8b4 LS |
260 | if (bgp_default && if_is_loopback(ifp)) { |
261 | vpn_leak_zebra_vrf_label_update(bgp, AFI_IP); | |
262 | vpn_leak_zebra_vrf_label_update(bgp, AFI_IP6); | |
263 | vpn_leak_zebra_vrf_sid_update(bgp, AFI_IP); | |
264 | vpn_leak_zebra_vrf_sid_update(bgp, AFI_IP6); | |
265 | vpn_leak_postchange_all(); | |
266 | } | |
267 | ||
d62a17ae | 268 | return 0; |
718e3744 | 269 | } |
270 | ||
b0b69e59 | 271 | static int bgp_ifp_down(struct interface *ifp) |
718e3744 | 272 | { |
d62a17ae | 273 | struct connected *c; |
274 | struct nbr_connected *nc; | |
275 | struct listnode *node, *nnode; | |
6030b8b4 | 276 | struct bgp *bgp_default = bgp_get_default(); |
d62a17ae | 277 | struct bgp *bgp; |
c19fe3c7 | 278 | struct peer *peer; |
6aeb9e78 | 279 | |
096f7609 | 280 | bgp = ifp->vrf->info; |
718e3744 | 281 | |
6a69ac51 DS |
282 | bgp_mac_del_mac_entry(ifp); |
283 | ||
d62a17ae | 284 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
285 | zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf->vrf_id, |
286 | ifp->name); | |
ad4cbda1 | 287 | |
85751d1d DS |
288 | if (!bgp) |
289 | return 0; | |
290 | ||
d62a17ae | 291 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
292 | bgp_connected_delete(bgp, c); | |
718e3744 | 293 | |
d62a17ae | 294 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
295 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 296 | |
d62a17ae | 297 | /* Fast external-failover */ |
c19fe3c7 | 298 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 299 | |
d62a17ae | 300 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
50bd8995 | 301 | /* Take down directly connected peers. */ |
c8d6f0d6 | 302 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 | 303 | && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED)) |
d62a17ae | 304 | continue; |
718e3744 | 305 | |
d62a17ae | 306 | if (ifp == peer->nexthop.ifp) { |
307 | BGP_EVENT_ADD(peer, BGP_Stop); | |
308 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
309 | } | |
310 | } | |
311 | } | |
718e3744 | 312 | |
0d020cd6 | 313 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
8761cd6d DS |
314 | bgp_nht_ifp_down(ifp); |
315 | ||
6030b8b4 LS |
316 | if (bgp_default && if_is_loopback(ifp)) { |
317 | vpn_leak_zebra_vrf_label_update(bgp, AFI_IP); | |
318 | vpn_leak_zebra_vrf_label_update(bgp, AFI_IP6); | |
319 | vpn_leak_zebra_vrf_sid_update(bgp, AFI_IP); | |
320 | vpn_leak_zebra_vrf_sid_update(bgp, AFI_IP6); | |
321 | vpn_leak_postchange_all(); | |
322 | } | |
323 | ||
d62a17ae | 324 | return 0; |
718e3744 | 325 | } |
326 | ||
121f9dee | 327 | static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 328 | { |
d62a17ae | 329 | struct connected *ifc; |
2f9123e0 | 330 | struct bgp *bgp; |
bc6d1b15 P |
331 | struct peer *peer; |
332 | struct prefix *addr; | |
333 | struct listnode *node, *nnode; | |
334 | afi_t afi; | |
335 | safi_t safi; | |
2f9123e0 DS |
336 | |
337 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 338 | |
121f9dee | 339 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 340 | |
341 | if (ifc == NULL) | |
342 | return 0; | |
343 | ||
2dbe669b DA |
344 | if (bgp_debug_zebra(ifc->address)) |
345 | zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id, | |
346 | ifc->ifp->name, ifc->address); | |
d62a17ae | 347 | |
85751d1d DS |
348 | if (!bgp) |
349 | return 0; | |
350 | ||
d62a17ae | 351 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 352 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 353 | |
d62a17ae | 354 | /* If we have learnt of any neighbors on this interface, |
355 | * check to kick off any BGP interface-based neighbors, | |
356 | * but only if this is a link-local address. | |
357 | */ | |
358 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
359 | && !list_isempty(ifc->ifp->nbr_connected)) | |
360 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
bc6d1b15 P |
361 | else { |
362 | addr = ifc->address; | |
363 | ||
364 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
365 | if (addr->family == AF_INET) | |
366 | continue; | |
367 | ||
368 | /* | |
369 | * If the Peer's interface name matches the | |
370 | * interface name for which BGP received the | |
371 | * update and if the received interface address | |
372 | * is a globalV6 and if the peer is currently | |
373 | * using a v4-mapped-v6 addr or a link local | |
374 | * address, then copy the Rxed global v6 addr | |
375 | * into peer's v6_global and send updates out | |
376 | * with new nexthop addr. | |
377 | */ | |
378 | if ((peer->conf_if && | |
379 | (strcmp(peer->conf_if, ifc->ifp->name) == | |
380 | 0)) && | |
381 | !IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6) && | |
382 | ((IS_MAPPED_IPV6( | |
383 | &peer->nexthop.v6_global)) || | |
384 | IN6_IS_ADDR_LINKLOCAL( | |
385 | &peer->nexthop.v6_global))) { | |
386 | ||
387 | if (bgp_debug_zebra(ifc->address)) { | |
388 | zlog_debug( | |
389 | "Update peer %pBP's current intf addr %pI6 and send updates", | |
390 | peer, | |
391 | &peer->nexthop | |
392 | .v6_global); | |
393 | } | |
394 | memcpy(&peer->nexthop.v6_global, | |
395 | &addr->u.prefix6, | |
396 | IPV6_MAX_BYTELEN); | |
397 | FOREACH_AFI_SAFI (afi, safi) | |
398 | bgp_announce_route(peer, afi, | |
399 | safi, true); | |
400 | } | |
401 | } | |
402 | } | |
d62a17ae | 403 | } |
404 | ||
405 | return 0; | |
718e3744 | 406 | } |
407 | ||
121f9dee | 408 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 409 | { |
f3d20a2a | 410 | struct listnode *node, *nnode; |
5f6c0ba6 LS |
411 | struct bgp_path_info *pi; |
412 | struct bgp_table *table; | |
413 | struct bgp_dest *dest; | |
d62a17ae | 414 | struct connected *ifc; |
f3d20a2a | 415 | struct peer *peer; |
5f6c0ba6 LS |
416 | struct bgp *bgp, *from_bgp, *bgp_default; |
417 | struct listnode *next; | |
f3d20a2a | 418 | struct prefix *addr; |
5f6c0ba6 LS |
419 | afi_t afi; |
420 | safi_t safi; | |
6aeb9e78 | 421 | |
2f9123e0 | 422 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 423 | |
121f9dee | 424 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 425 | |
d62a17ae | 426 | if (ifc == NULL) |
427 | return 0; | |
718e3744 | 428 | |
2dbe669b DA |
429 | if (bgp_debug_zebra(ifc->address)) |
430 | zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id, | |
431 | ifc->ifp->name, ifc->address); | |
a39275d7 | 432 | |
85751d1d | 433 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 434 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 435 | } |
718e3744 | 436 | |
f3d20a2a DS |
437 | addr = ifc->address; |
438 | ||
439 | if (bgp) { | |
440 | /* | |
441 | * When we are using the v6 global as part of the peering | |
442 | * nexthops and we are removing it, then we need to | |
443 | * clear the peer data saved for that nexthop and | |
444 | * cause a re-announcement of the route. Since | |
445 | * we do not want the peering to bounce. | |
446 | */ | |
447 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
f3d20a2a DS |
448 | if (addr->family == AF_INET) |
449 | continue; | |
450 | ||
451 | if (!IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6) | |
452 | && memcmp(&peer->nexthop.v6_global, | |
453 | &addr->u.prefix6, 16) | |
454 | == 0) { | |
455 | memset(&peer->nexthop.v6_global, 0, 16); | |
456 | FOREACH_AFI_SAFI (afi, safi) | |
457 | bgp_announce_route(peer, afi, safi, | |
458 | true); | |
459 | } | |
460 | } | |
461 | } | |
462 | ||
5f6c0ba6 LS |
463 | bgp_default = bgp_get_default(); |
464 | afi = family2afi(addr->family); | |
465 | safi = SAFI_UNICAST; | |
466 | ||
467 | /* When the last IPv4 address was deleted, Linux removes all routes | |
468 | * using the interface so that bgpd needs to re-send them. | |
469 | */ | |
470 | if (bgp_default && afi == AFI_IP) { | |
471 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, next, from_bgp)) { | |
472 | table = from_bgp->rib[afi][safi]; | |
473 | if (!table) | |
474 | continue; | |
475 | ||
476 | for (dest = bgp_table_top(table); dest; | |
477 | dest = bgp_route_next(dest)) { | |
478 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; | |
479 | pi = pi->next) { | |
480 | if (pi->type == ZEBRA_ROUTE_BGP && | |
481 | pi->attr && | |
482 | pi->attr->nh_ifindex == | |
483 | ifc->ifp->ifindex) { | |
484 | SET_FLAG(pi->attr->nh_flag, | |
485 | BGP_ATTR_NH_REFRESH); | |
486 | } | |
487 | } | |
488 | } | |
489 | ||
490 | if (from_bgp->inst_type != BGP_INSTANCE_TYPE_VRF) | |
491 | continue; | |
492 | ||
493 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, afi, | |
494 | bgp_default, from_bgp); | |
495 | ||
496 | vpn_leak_postchange(BGP_VPN_POLICY_DIR_FROMVPN, afi, | |
497 | bgp_default, from_bgp); | |
498 | } | |
499 | } | |
500 | ||
721c0857 | 501 | connected_free(&ifc); |
718e3744 | 502 | |
d62a17ae | 503 | return 0; |
718e3744 | 504 | } |
505 | ||
121f9dee | 506 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 507 | { |
d62a17ae | 508 | struct nbr_connected *ifc = NULL; |
509 | struct bgp *bgp; | |
510 | ||
121f9dee | 511 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 512 | |
513 | if (ifc == NULL) | |
514 | return 0; | |
515 | ||
2dbe669b DA |
516 | if (bgp_debug_zebra(ifc->address)) |
517 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX", | |
518 | vrf_id, ifc->ifp->name, ifc->address); | |
d62a17ae | 519 | |
520 | if (if_is_operative(ifc->ifp)) { | |
521 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
522 | if (bgp) | |
523 | bgp_nbr_connected_add(bgp, ifc); | |
524 | } | |
525 | ||
526 | return 0; | |
a80beece DS |
527 | } |
528 | ||
121f9dee | 529 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 530 | { |
d62a17ae | 531 | struct nbr_connected *ifc = NULL; |
532 | struct bgp *bgp; | |
6aeb9e78 | 533 | |
121f9dee | 534 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 535 | |
d62a17ae | 536 | if (ifc == NULL) |
537 | return 0; | |
a80beece | 538 | |
2dbe669b DA |
539 | if (bgp_debug_zebra(ifc->address)) |
540 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX", | |
541 | vrf_id, ifc->ifp->name, ifc->address); | |
a80beece | 542 | |
d62a17ae | 543 | if (if_is_operative(ifc->ifp)) { |
544 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
545 | if (bgp) | |
546 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
547 | } | |
a80beece | 548 | |
d62a17ae | 549 | nbr_connected_free(ifc); |
a80beece | 550 | |
d62a17ae | 551 | return 0; |
a80beece DS |
552 | } |
553 | ||
bfcd43b2 | 554 | /* VRF update for an interface. */ |
121f9dee | 555 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 556 | { |
d62a17ae | 557 | struct interface *ifp; |
558 | vrf_id_t new_vrf_id; | |
559 | struct connected *c; | |
560 | struct nbr_connected *nc; | |
561 | struct listnode *node, *nnode; | |
562 | struct bgp *bgp; | |
c19fe3c7 | 563 | struct peer *peer; |
bfcd43b2 | 564 | |
d62a17ae | 565 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
566 | &new_vrf_id); | |
567 | if (!ifp) | |
568 | return 0; | |
bfcd43b2 | 569 | |
253b7158 | 570 | if (BGP_DEBUG(zebra, ZEBRA)) |
d62a17ae | 571 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, |
572 | ifp->name, new_vrf_id); | |
bfcd43b2 | 573 | |
d62a17ae | 574 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 575 | |
85751d1d DS |
576 | if (bgp) { |
577 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
578 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 579 | |
85751d1d DS |
580 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
581 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 582 | |
85751d1d DS |
583 | /* Fast external-failover */ |
584 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
585 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
c8d6f0d6 | 586 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 DA |
587 | && (peer->gtsm_hops |
588 | != BGP_GTSM_HOPS_CONNECTED)) | |
85751d1d | 589 | continue; |
bfcd43b2 | 590 | |
85751d1d DS |
591 | if (ifp == peer->nexthop.ifp) |
592 | BGP_EVENT_ADD(peer, BGP_Stop); | |
593 | } | |
d62a17ae | 594 | } |
595 | } | |
bfcd43b2 | 596 | |
a36898e7 | 597 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 598 | |
d62a17ae | 599 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
600 | if (!bgp) | |
601 | return 0; | |
bfcd43b2 | 602 | |
d62a17ae | 603 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
604 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 605 | |
d62a17ae | 606 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
607 | bgp_nbr_connected_add(bgp, nc); | |
0d020cd6 PR |
608 | |
609 | hook_call(bgp_vrf_status_changed, bgp, ifp); | |
d62a17ae | 610 | return 0; |
bfcd43b2 | 611 | } |
612 | ||
718e3744 | 613 | /* Zebra route add and delete treatment. */ |
121f9dee | 614 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 615 | { |
9de1f7ff | 616 | enum nexthop_types_t nhtype; |
0789eb69 | 617 | enum blackhole_type bhtype = BLACKHOLE_UNSPEC; |
74489921 | 618 | struct zapi_route api; |
0789eb69 | 619 | union g_addr nexthop = {}; |
9de1f7ff | 620 | ifindex_t ifindex; |
74489921 | 621 | int add, i; |
d62a17ae | 622 | struct bgp *bgp; |
623 | ||
624 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
625 | if (!bgp) | |
626 | return 0; | |
627 | ||
74489921 RW |
628 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
629 | return -1; | |
d62a17ae | 630 | |
74489921 RW |
631 | /* we completely ignore srcdest routes for now. */ |
632 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
633 | return 0; | |
d62a17ae | 634 | |
74489921 RW |
635 | /* ignore link-local address. */ |
636 | if (api.prefix.family == AF_INET6 | |
637 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
638 | return 0; | |
d62a17ae | 639 | |
74489921 | 640 | ifindex = api.nexthops[0].ifindex; |
9de1f7ff | 641 | nhtype = api.nexthops[0].type; |
d62a17ae | 642 | |
0789eb69 KM |
643 | /* api_nh structure has union of gate and bh_type */ |
644 | if (nhtype == NEXTHOP_TYPE_BLACKHOLE) { | |
645 | /* bh_type is only applicable if NEXTHOP_TYPE_BLACKHOLE*/ | |
646 | bhtype = api.nexthops[0].bh_type; | |
647 | } else | |
648 | nexthop = api.nexthops[0].gate; | |
649 | ||
121f9dee | 650 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 651 | if (add) { |
d62a17ae | 652 | /* |
653 | * The ADD message is actually an UPDATE and there is no | |
654 | * explicit DEL | |
655 | * for a prior redistributed route, if any. So, perform an | |
656 | * implicit | |
657 | * DEL processing for the same redistributed route from any | |
658 | * other | |
659 | * source type. | |
660 | */ | |
661 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
662 | if (i != api.type) | |
74489921 | 663 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 664 | api.instance); |
665 | } | |
666 | ||
667 | /* Now perform the add/update. */ | |
74489921 | 668 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
0789eb69 KM |
669 | nhtype, bhtype, api.distance, api.metric, |
670 | api.type, api.instance, api.tag); | |
d62a17ae | 671 | } else { |
74489921 RW |
672 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
673 | api.instance); | |
a39275d7 | 674 | } |
d62a17ae | 675 | |
74489921 | 676 | if (bgp_debug_zebra(&api.prefix)) { |
2dbe669b | 677 | char buf[PREFIX_STRLEN]; |
74489921 | 678 | |
77e62f2b | 679 | if (add) { |
2dbe669b DA |
680 | inet_ntop(api.prefix.family, &nexthop, buf, |
681 | sizeof(buf)); | |
77e62f2b | 682 | zlog_debug( |
801bb996 | 683 | "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI, |
77e62f2b | 684 | vrf_id, zebra_route_string(api.type), |
2dbe669b | 685 | api.instance, &api.prefix, buf, nhtype, ifindex, |
801bb996 | 686 | api.metric, api.distance, api.tag); |
77e62f2b | 687 | } else { |
6bdbcbf1 | 688 | zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id, |
2dbe669b | 689 | zebra_route_string(api.type), api.instance, |
6bdbcbf1 | 690 | &api.prefix); |
77e62f2b | 691 | } |
d62a17ae | 692 | } |
693 | ||
694 | return 0; | |
718e3744 | 695 | } |
6b0655a2 | 696 | |
d62a17ae | 697 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 698 | { |
f4e14fdb | 699 | struct vrf *vrf; |
d62a17ae | 700 | struct listnode *cnode; |
701 | struct interface *ifp; | |
702 | struct connected *connected; | |
703 | struct prefix_ipv4 p; | |
704 | struct prefix *cp; | |
705 | ||
f4e14fdb RW |
706 | vrf = vrf_lookup_by_id(vrf_id); |
707 | if (!vrf) | |
708 | return NULL; | |
709 | ||
d62a17ae | 710 | p.family = AF_INET; |
711 | p.prefix = *addr; | |
712 | p.prefixlen = IPV4_MAX_BITLEN; | |
713 | ||
451fda4f | 714 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 715 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
716 | cp = connected->address; | |
717 | ||
718 | if (cp->family == AF_INET) | |
719 | if (prefix_match(cp, (struct prefix *)&p)) | |
720 | return ifp; | |
721 | } | |
718e3744 | 722 | } |
d62a17ae | 723 | return NULL; |
718e3744 | 724 | } |
725 | ||
d62a17ae | 726 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 727 | { |
f4e14fdb | 728 | struct vrf *vrf; |
d62a17ae | 729 | struct listnode *cnode; |
730 | struct interface *ifp; | |
731 | struct connected *connected; | |
732 | struct prefix *cp; | |
733 | ||
f4e14fdb RW |
734 | vrf = vrf_lookup_by_id(vrf_id); |
735 | if (!vrf) | |
736 | return NULL; | |
737 | ||
451fda4f | 738 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 739 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
740 | cp = connected->address; | |
741 | ||
742 | if (cp->family == AF_INET) | |
743 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
744 | return ifp; | |
745 | } | |
718e3744 | 746 | } |
d62a17ae | 747 | return NULL; |
718e3744 | 748 | } |
749 | ||
d62a17ae | 750 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
751 | vrf_id_t vrf_id) | |
718e3744 | 752 | { |
f4e14fdb | 753 | struct vrf *vrf; |
d62a17ae | 754 | struct listnode *cnode; |
755 | struct interface *ifp; | |
756 | struct connected *connected; | |
757 | struct prefix_ipv6 p; | |
758 | struct prefix *cp; | |
759 | ||
f4e14fdb RW |
760 | vrf = vrf_lookup_by_id(vrf_id); |
761 | if (!vrf) | |
762 | return NULL; | |
763 | ||
d62a17ae | 764 | p.family = AF_INET6; |
765 | p.prefix = *addr; | |
766 | p.prefixlen = IPV6_MAX_BITLEN; | |
767 | ||
451fda4f | 768 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 769 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
770 | cp = connected->address; | |
771 | ||
772 | if (cp->family == AF_INET6) | |
773 | if (prefix_match(cp, (struct prefix *)&p)) { | |
774 | if (IN6_IS_ADDR_LINKLOCAL( | |
775 | &cp->u.prefix6)) { | |
776 | if (ifindex == ifp->ifindex) | |
777 | return ifp; | |
778 | } else | |
779 | return ifp; | |
780 | } | |
781 | } | |
718e3744 | 782 | } |
d62a17ae | 783 | return NULL; |
718e3744 | 784 | } |
785 | ||
d62a17ae | 786 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
787 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 788 | { |
f4e14fdb | 789 | struct vrf *vrf; |
d62a17ae | 790 | struct listnode *cnode; |
791 | struct interface *ifp; | |
792 | struct connected *connected; | |
793 | struct prefix *cp; | |
794 | ||
f4e14fdb RW |
795 | vrf = vrf_lookup_by_id(vrf_id); |
796 | if (!vrf) | |
797 | return NULL; | |
798 | ||
451fda4f | 799 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 800 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
801 | cp = connected->address; | |
802 | ||
803 | if (cp->family == AF_INET6) | |
804 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
805 | if (IN6_IS_ADDR_LINKLOCAL( | |
806 | &cp->u.prefix6)) { | |
807 | if (ifindex == ifp->ifindex) | |
808 | return ifp; | |
809 | } else | |
810 | return ifp; | |
811 | } | |
812 | } | |
718e3744 | 813 | } |
d62a17ae | 814 | return NULL; |
718e3744 | 815 | } |
816 | ||
d62a17ae | 817 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 818 | { |
d62a17ae | 819 | struct listnode *cnode; |
820 | struct connected *connected; | |
821 | struct prefix *cp; | |
822 | ||
823 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
824 | cp = connected->address; | |
825 | ||
826 | if (cp->family == AF_INET6) | |
827 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
828 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
829 | return 1; | |
830 | } | |
831 | } | |
832 | return 0; | |
718e3744 | 833 | } |
834 | ||
dac42f2e | 835 | static bool if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 836 | { |
d62a17ae | 837 | struct listnode *cnode; |
838 | struct connected *connected; | |
839 | struct prefix *cp; | |
840 | ||
841 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
842 | cp = connected->address; | |
843 | ||
844 | if (cp->family == AF_INET6) | |
845 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
846 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
dac42f2e | 847 | return true; |
d62a17ae | 848 | } |
849 | } | |
dac42f2e | 850 | return false; |
718e3744 | 851 | } |
718e3744 | 852 | |
d62a17ae | 853 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 854 | { |
d62a17ae | 855 | struct listnode *cnode; |
856 | struct connected *connected; | |
857 | struct prefix *cp; | |
858 | ||
859 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
860 | cp = connected->address; | |
861 | if ((cp->family == AF_INET) | |
862 | && !ipv4_martian(&(cp->u.prefix4))) { | |
863 | *addr = cp->u.prefix4; | |
864 | return 1; | |
865 | } | |
866 | } | |
867 | return 0; | |
6ee06fa9 PM |
868 | } |
869 | ||
17cdd31e DS |
870 | |
871 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
872 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 873 | { |
d62a17ae | 874 | int ret = 0; |
875 | struct interface *ifp = NULL; | |
dac42f2e | 876 | bool v6_ll_avail = true; |
d62a17ae | 877 | |
878 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
879 | ||
880 | if (!local) | |
17cdd31e | 881 | return false; |
d62a17ae | 882 | if (!remote) |
17cdd31e | 883 | return false; |
d62a17ae | 884 | |
885 | if (local->sa.sa_family == AF_INET) { | |
886 | nexthop->v4 = local->sin.sin_addr; | |
887 | if (peer->update_if) | |
888 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 889 | peer->bgp->vrf_id); |
d62a17ae | 890 | else |
891 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
892 | peer->bgp->vrf_id); | |
718e3744 | 893 | } |
d62a17ae | 894 | if (local->sa.sa_family == AF_INET6) { |
8f2b2139 | 895 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN); |
d62a17ae | 896 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { |
897 | if (peer->conf_if || peer->ifname) | |
898 | ifp = if_lookup_by_name(peer->conf_if | |
899 | ? peer->conf_if | |
900 | : peer->ifname, | |
a36898e7 | 901 | peer->bgp->vrf_id); |
abe68054 PG |
902 | else if (peer->update_if) |
903 | ifp = if_lookup_by_name(peer->update_if, | |
904 | peer->bgp->vrf_id); | |
d62a17ae | 905 | } else if (peer->update_if) |
906 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 907 | peer->bgp->vrf_id); |
d62a17ae | 908 | else |
909 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
910 | local->sin6.sin6_scope_id, | |
911 | peer->bgp->vrf_id); | |
718e3744 | 912 | } |
d62a17ae | 913 | |
17cdd31e DS |
914 | if (!ifp) { |
915 | /* | |
916 | * BGP views do not currently get proper data | |
917 | * from zebra( when attached ) to be able to | |
918 | * properly resolve nexthops, so give this | |
919 | * instance type a pass. | |
920 | */ | |
921 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
922 | return true; | |
923 | /* | |
924 | * If we have no interface data but we have established | |
925 | * some connection w/ zebra than something has gone | |
926 | * terribly terribly wrong here, so say this failed | |
927 | * If we do not any zebra connection then not | |
928 | * having a ifp pointer is ok. | |
929 | */ | |
930 | return zclient_num_connects ? false : true; | |
931 | } | |
d62a17ae | 932 | |
933 | nexthop->ifp = ifp; | |
934 | ||
935 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
936 | if (local->sa.sa_family == AF_INET) { | |
937 | /* IPv6 nexthop*/ | |
938 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
939 | ||
940 | if (!ret) { | |
941 | /* There is no global nexthop. Use link-local address as | |
942 | * both the | |
943 | * global and link-local nexthop. In this scenario, the | |
944 | * expectation | |
945 | * for interop is that the network admin would use a | |
946 | * route-map to | |
947 | * specify the global IPv6 nexthop. | |
948 | */ | |
dac42f2e DS |
949 | v6_ll_avail = |
950 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
d62a17ae | 951 | memcpy(&nexthop->v6_local, &nexthop->v6_global, |
952 | IPV6_MAX_BYTELEN); | |
953 | } else | |
dac42f2e DS |
954 | v6_ll_avail = |
955 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
d62a17ae | 956 | |
dac42f2e DS |
957 | /* |
958 | * If we are a v4 connection and we are not doing unnumbered | |
959 | * not having a v6 LL address is ok | |
960 | */ | |
961 | if (!v6_ll_avail && !peer->conf_if) | |
962 | v6_ll_avail = true; | |
d62a17ae | 963 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) |
964 | peer->shared_network = 1; | |
965 | else | |
966 | peer->shared_network = 0; | |
718e3744 | 967 | } |
718e3744 | 968 | |
d62a17ae | 969 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
970 | if (local->sa.sa_family == AF_INET6) { | |
971 | struct interface *direct = NULL; | |
972 | ||
973 | /* IPv4 nexthop. */ | |
974 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
975a328e | 975 | if (!ret && peer->local_id.s_addr != INADDR_ANY) |
d62a17ae | 976 | nexthop->v4 = peer->local_id; |
977 | ||
978 | /* Global address*/ | |
979 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
980 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
981 | IPV6_MAX_BYTELEN); | |
982 | ||
382c3b08 | 983 | /* If directly connected set link-local address. */ |
d62a17ae | 984 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, |
985 | remote->sin6.sin6_scope_id, | |
986 | peer->bgp->vrf_id); | |
987 | if (direct) | |
dac42f2e DS |
988 | v6_ll_avail = if_get_ipv6_local( |
989 | ifp, &nexthop->v6_local); | |
2ebb354c IR |
990 | /* |
991 | * It's fine to not have a v6 LL when using | |
992 | * update-source loopback/vrf | |
993 | */ | |
608c8870 | 994 | if (!v6_ll_avail && if_is_loopback(ifp)) |
2ebb354c | 995 | v6_ll_avail = true; |
382c3b08 | 996 | else if (!v6_ll_avail) { |
75ba864c DS |
997 | flog_warn( |
998 | EC_BGP_NO_LL_ADDRESS_AVAILABLE, | |
999 | "Interface: %s does not have a v6 LL address associated with it, waiting until one is created for it", | |
1000 | ifp->name); | |
1001 | } | |
d62a17ae | 1002 | } else |
1003 | /* Link-local address. */ | |
1004 | { | |
1005 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
1006 | ||
1007 | /* If there is no global address. Set link-local | |
1008 | address as | |
1009 | global. I know this break RFC specification... */ | |
1010 | /* In this scenario, the expectation for interop is that | |
1011 | * the | |
1012 | * network admin would use a route-map to specify the | |
1013 | * global | |
1014 | * IPv6 nexthop. | |
1015 | */ | |
1016 | if (!ret) | |
1017 | memcpy(&nexthop->v6_global, | |
1018 | &local->sin6.sin6_addr, | |
1019 | IPV6_MAX_BYTELEN); | |
1020 | /* Always set the link-local address */ | |
1021 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
1022 | IPV6_MAX_BYTELEN); | |
1023 | } | |
1024 | ||
1025 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
1026 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
1027 | remote->sin6.sin6_scope_id, | |
1028 | peer->bgp->vrf_id)) | |
1029 | peer->shared_network = 1; | |
1030 | else | |
1031 | peer->shared_network = 0; | |
1032 | } | |
718e3744 | 1033 | |
d62a17ae | 1034 | /* KAME stack specific treatment. */ |
718e3744 | 1035 | #ifdef KAME |
d62a17ae | 1036 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
1037 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
1038 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
1039 | } | |
1040 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
1041 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
1042 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
1043 | } | |
718e3744 | 1044 | #endif /* KAME */ |
e33a4880 | 1045 | |
d62a17ae | 1046 | /* If we have identified the local interface, there is no error for now. |
1047 | */ | |
dac42f2e | 1048 | return v6_ll_avail; |
718e3744 | 1049 | } |
1050 | ||
18ee8310 | 1051 | static struct in6_addr * |
40381db7 | 1052 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 1053 | { |
d62a17ae | 1054 | struct in6_addr *nexthop = NULL; |
1055 | ||
1056 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
1057 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
1058 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 1059 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 1060 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1061 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 1062 | } |
d62a17ae | 1063 | |
1064 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
1065 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
1066 | || path->attr->mp_nexthop_len | |
1067 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 1068 | /* Check if route-map is set to prefer global over link-local */ |
667a4e92 LS |
1069 | if (CHECK_FLAG(path->attr->nh_flag, |
1070 | BGP_ATTR_NH_MP_PREFER_GLOBAL)) { | |
40381db7 | 1071 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 1072 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1073 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 1074 | } else { |
d62a17ae | 1075 | /* Workaround for Cisco's nexthop bug. */ |
1076 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 | 1077 | &path->attr->mp_nexthop_global) |
ab0e0f73 | 1078 | && path->peer->su_remote |
40381db7 | 1079 | && path->peer->su_remote->sa.sa_family |
59a0f1cb | 1080 | == AF_INET6) { |
d62a17ae | 1081 | nexthop = |
40381db7 | 1082 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 1083 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1084 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 1085 | ->ifindex; |
77e62f2b | 1086 | } else { |
40381db7 | 1087 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 1088 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1089 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 1090 | } |
d62a17ae | 1091 | } |
1092 | } | |
1093 | ||
1094 | return nexthop; | |
73ac8160 DS |
1095 | } |
1096 | ||
b8685f9b | 1097 | static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p, |
3dc339cd | 1098 | struct bgp_path_info *path) |
73ac8160 | 1099 | { |
b4cb15c6 DL |
1100 | route_map_result_t ret; |
1101 | ||
1782514f | 1102 | ret = route_map_apply(map, p, path); |
40381db7 | 1103 | bgp_attr_flush(path->attr); |
b4cb15c6 DL |
1104 | |
1105 | if (ret != RMAP_DENYMATCH) | |
3dc339cd | 1106 | return true; |
d62a17ae | 1107 | |
1108 | if (bgp_debug_zebra(p)) { | |
1109 | if (p->family == AF_INET) { | |
d62a17ae | 1110 | zlog_debug( |
c0d72166 DS |
1111 | "Zebra rmap deny: IPv4 route %pFX nexthop %pI4", |
1112 | p, &path->attr->nexthop); | |
d62a17ae | 1113 | } |
1114 | if (p->family == AF_INET6) { | |
77e62f2b | 1115 | ifindex_t ifindex; |
1116 | struct in6_addr *nexthop; | |
1117 | ||
40381db7 | 1118 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 1119 | zlog_debug( |
7b6cee89 DS |
1120 | "Zebra rmap deny: IPv6 route %pFX nexthop %pI6", |
1121 | p, nexthop); | |
d62a17ae | 1122 | } |
1123 | } | |
3dc339cd | 1124 | return false; |
73ac8160 DS |
1125 | } |
1126 | ||
b98f7728 PG |
1127 | static struct thread *bgp_tm_thread_connect; |
1128 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
1129 | static bool bgp_tm_chunk_obtained; |
1130 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
1131 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 1132 | struct bgp *bgp_tm_bgp; |
b98f7728 | 1133 | |
cc9f21da | 1134 | static void bgp_zebra_tm_connect(struct thread *t) |
b98f7728 PG |
1135 | { |
1136 | struct zclient *zclient; | |
1137 | int delay = 10, ret = 0; | |
1138 | ||
1139 | zclient = THREAD_ARG(t); | |
1140 | if (bgp_tm_status_connected && zclient->sock > 0) | |
1141 | delay = 60; | |
1142 | else { | |
1143 | bgp_tm_status_connected = false; | |
1144 | ret = tm_table_manager_connect(zclient); | |
1145 | } | |
1146 | if (ret < 0) { | |
b7cd3069 | 1147 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
1148 | bgp_tm_status_connected = false; |
1149 | } else { | |
1150 | if (!bgp_tm_status_connected) | |
1151 | zlog_debug("Connecting to table manager. Success"); | |
1152 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
1153 | if (!bgp_tm_chunk_obtained) { |
1154 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
1155 | &bgp_tm_min, | |
6818e7e5 | 1156 | &bgp_tm_max) >= 0) { |
31c28cd7 | 1157 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1158 | /* parse non installed entries */ |
1159 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1160 | } | |
31c28cd7 | 1161 | } |
b98f7728 PG |
1162 | } |
1163 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1164 | &bgp_tm_thread_connect); | |
b98f7728 PG |
1165 | } |
1166 | ||
6818e7e5 PG |
1167 | bool bgp_zebra_tm_chunk_obtained(void) |
1168 | { | |
1169 | return bgp_tm_chunk_obtained; | |
1170 | } | |
1171 | ||
31c28cd7 PG |
1172 | uint32_t bgp_zebra_tm_get_id(void) |
1173 | { | |
1174 | static int table_id; | |
1175 | ||
1176 | if (!bgp_tm_chunk_obtained) | |
1177 | return ++table_id; | |
1178 | return bgp_tm_min++; | |
1179 | } | |
1180 | ||
6818e7e5 | 1181 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1182 | { |
1183 | int delay = 1; | |
1184 | ||
1185 | /* if already set, do nothing | |
1186 | */ | |
1187 | if (bgp_tm_thread_connect != NULL) | |
1188 | return; | |
1189 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1190 | bgp_tm_chunk_obtained = false; |
1191 | bgp_tm_min = bgp_tm_max = 0; | |
1192 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1193 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1194 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1195 | &bgp_tm_thread_connect); | |
1196 | } | |
1197 | ||
1198 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1199 | uint32_t *start, uint32_t *end) | |
1200 | { | |
1201 | int ret; | |
1202 | ||
1203 | if (!bgp_tm_status_connected) | |
1204 | return -1; | |
1205 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1206 | if (ret < 0) { | |
e50f7cfd | 1207 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1208 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1209 | return -1; |
1210 | } | |
1211 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1212 | chunk_size, *start, *end); | |
1213 | return 0; | |
1214 | } | |
1215 | ||
3dc339cd DA |
1216 | static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1217 | struct in_addr *nexthop, | |
1218 | struct attr *attr, bool is_evpn, | |
1219 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1220 | { |
1221 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1222 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1223 | |
1224 | /* Need to set fields appropriately for EVPN routes imported into | |
1225 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1226 | * connected routes leaked into a VRF. | |
1227 | */ | |
0789eb69 KM |
1228 | if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) { |
1229 | api_nh->type = attr->nh_type; | |
1230 | api_nh->bh_type = attr->bh_type; | |
1231 | } else if (is_evpn) { | |
a2299aba AD |
1232 | /* |
1233 | * If the nexthop is EVPN overlay index gateway IP, | |
1234 | * treat the nexthop as NEXTHOP_TYPE_IPV4 | |
1235 | * Else, mark the nexthop as onlink. | |
1236 | */ | |
1237 | if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP) | |
1238 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1239 | else { | |
1240 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
5609e70f | 1241 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
a2299aba AD |
1242 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
1243 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; | |
1244 | } | |
0789eb69 | 1245 | } else if (nh_othervrf && api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
77e62f2b | 1246 | api_nh->type = NEXTHOP_TYPE_IFINDEX; |
1247 | api_nh->ifindex = attr->nh_ifindex; | |
1248 | } else | |
1249 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1250 | ||
3dc339cd | 1251 | return true; |
77e62f2b | 1252 | } |
1253 | ||
3dc339cd DA |
1254 | static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1255 | struct in6_addr *nexthop, | |
1256 | ifindex_t ifindex, | |
1257 | struct bgp_path_info *pi, | |
1258 | struct bgp_path_info *best_pi, | |
1259 | bool is_evpn, | |
1260 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1261 | { |
1262 | struct attr *attr; | |
1263 | ||
40381db7 | 1264 | attr = pi->attr; |
e1e71450 | 1265 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1266 | |
0789eb69 KM |
1267 | if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) { |
1268 | api_nh->type = attr->nh_type; | |
1269 | api_nh->bh_type = attr->bh_type; | |
1270 | } else if (is_evpn) { | |
a2299aba AD |
1271 | /* |
1272 | * If the nexthop is EVPN overlay index gateway IP, | |
1273 | * treat the nexthop as NEXTHOP_TYPE_IPV4 | |
1274 | * Else, mark the nexthop as onlink. | |
1275 | */ | |
1276 | if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP) | |
1277 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1278 | else { | |
1279 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
5609e70f | 1280 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
a2299aba AD |
1281 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
1282 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; | |
1283 | } | |
e1e71450 | 1284 | } else if (nh_othervrf) { |
77e62f2b | 1285 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1286 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1287 | api_nh->ifindex = attr->nh_ifindex; | |
1288 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1289 | if (ifindex == 0) | |
3dc339cd | 1290 | return false; |
77e62f2b | 1291 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1292 | api_nh->ifindex = ifindex; | |
1293 | } else { | |
1294 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1295 | api_nh->ifindex = 0; | |
1296 | } | |
1297 | } else { | |
1298 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1299 | if (pi == best_pi |
1300 | && attr->mp_nexthop_len | |
1301 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1302 | if (pi->peer->nexthop.ifp) | |
1303 | ifindex = | |
1304 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1305 | if (!ifindex) { |
40381db7 DS |
1306 | if (pi->peer->conf_if) |
1307 | ifindex = pi->peer->ifp->ifindex; | |
1308 | else if (pi->peer->ifname) | |
77e62f2b | 1309 | ifindex = ifname2ifindex( |
40381db7 DS |
1310 | pi->peer->ifname, |
1311 | pi->peer->bgp->vrf_id); | |
1312 | else if (pi->peer->nexthop.ifp) | |
1313 | ifindex = | |
1314 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1315 | } |
1316 | ||
1317 | if (ifindex == 0) | |
3dc339cd | 1318 | return false; |
77e62f2b | 1319 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1320 | api_nh->ifindex = ifindex; | |
1321 | } else { | |
1322 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1323 | api_nh->ifindex = 0; | |
1324 | } | |
1325 | } | |
0789eb69 KM |
1326 | /* api_nh structure has union of gate and bh_type */ |
1327 | if (nexthop && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) | |
c2ca3e25 | 1328 | api_nh->gate.ipv6 = *nexthop; |
77e62f2b | 1329 | |
3dc339cd | 1330 | return true; |
77e62f2b | 1331 | } |
1332 | ||
f7e1c681 | 1333 | static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr, |
1334 | uint64_t tot_bw, uint32_t *nh_weight) | |
4e30bc2b | 1335 | { |
f7e1c681 | 1336 | uint32_t bw; |
1337 | uint64_t tmp; | |
1338 | ||
1339 | bw = attr->link_bw; | |
1340 | /* zero link-bandwidth and link-bandwidth not present are treated | |
1341 | * as the same situation. | |
1342 | */ | |
1343 | if (!bw) { | |
1344 | /* the only situations should be if we're either told | |
1345 | * to skip or use default weight. | |
1346 | */ | |
1347 | if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING) | |
1348 | return false; | |
1349 | *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT; | |
1350 | } else { | |
1351 | tmp = (uint64_t)bw * 100; | |
1352 | *nh_weight = ((uint32_t)(tmp / tot_bw)); | |
1353 | } | |
1354 | ||
1355 | return true; | |
4e30bc2b | 1356 | } |
1357 | ||
9bcb3eef | 1358 | void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p, |
4b7e6066 | 1359 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1360 | safi_t safi) |
718e3744 | 1361 | { |
7cc27d41 | 1362 | struct zapi_route api = { 0 }; |
9913029c | 1363 | struct zapi_nexthop *api_nh; |
2ad4f093 | 1364 | int nh_family; |
a74e593b | 1365 | unsigned int valid_nh_count = 0; |
1a9cb083 | 1366 | bool allow_recursion = false; |
d7c0a89a | 1367 | uint8_t distance; |
d62a17ae | 1368 | struct peer *peer; |
4b7e6066 | 1369 | struct bgp_path_info *mpinfo; |
86a1c296 | 1370 | struct bgp_path_info *bpi_ultimate; |
ad1844f7 | 1371 | struct bgp *bgp_orig; |
d7c0a89a | 1372 | uint32_t metric; |
b4cb15c6 | 1373 | struct attr local_attr; |
4b7e6066 DS |
1374 | struct bgp_path_info local_info; |
1375 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1376 | route_tag_t tag; |
1377 | mpls_label_t label; | |
ea7cd161 | 1378 | struct bgp_sid_info *sid_info; |
ddb5b488 | 1379 | int nh_othervrf = 0; |
06f16b2c | 1380 | bool nh_updated = false; |
4e30bc2b | 1381 | bool do_wt_ecmp; |
1382 | uint64_t cum_bw = 0; | |
6348981a AK |
1383 | uint32_t nhg_id = 0; |
1384 | bool is_add; | |
67f67ba4 DA |
1385 | uint32_t ttl = 0; |
1386 | uint32_t bos = 0; | |
1387 | uint32_t exp = 0; | |
d62a17ae | 1388 | |
1389 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1390 | * know of this instance. | |
1391 | */ | |
1392 | if (!bgp_install_info_to_zebra(bgp)) | |
1393 | return; | |
1394 | ||
d62a17ae | 1395 | if (bgp->main_zebra_update_hold) |
1396 | return; | |
1397 | ||
d90b788e | 1398 | if (safi == SAFI_FLOWSPEC) { |
9bcb3eef DS |
1399 | bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi, |
1400 | safi, true); | |
d90b788e A |
1401 | return; |
1402 | } | |
529efa23 | 1403 | |
ddb5b488 PZ |
1404 | /* |
1405 | * vrf leaking support (will have only one nexthop) | |
1406 | */ | |
1407 | if (info->extra && info->extra->bgp_orig) | |
1408 | nh_othervrf = 1; | |
1409 | ||
9913029c | 1410 | /* Make Zebra API structure. */ |
9913029c RW |
1411 | api.vrf_id = bgp->vrf_id; |
1412 | api.type = ZEBRA_ROUTE_BGP; | |
1413 | api.safi = safi; | |
1414 | api.prefix = *p; | |
1415 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1416 | ||
d62a17ae | 1417 | peer = info->peer; |
1418 | ||
86a1c296 LS |
1419 | if (info->type == ZEBRA_ROUTE_BGP) { |
1420 | bpi_ultimate = bgp_get_imported_bpi_ultimate(info); | |
1421 | peer = bpi_ultimate->peer; | |
ddb5b488 PZ |
1422 | } |
1423 | ||
d62a17ae | 1424 | tag = info->attr->tag; |
1425 | ||
d62a17ae | 1426 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1427 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1428 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1429 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1430 | } |
a39275d7 | 1431 | |
c8d6f0d6 | 1432 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL) |
d62a17ae | 1433 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) |
892fedb6 | 1434 | || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) |
d62a17ae | 1435 | |
1a9cb083 | 1436 | allow_recursion = true; |
d62a17ae | 1437 | |
951745bd PG |
1438 | if (info->attr->rmap_table_id) { |
1439 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1440 | api.tableid = info->attr->rmap_table_id; | |
1441 | } | |
1442 | ||
ef3e0d04 SM |
1443 | if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) |
1444 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
1445 | ||
2ad4f093 RW |
1446 | /* Metric is currently based on the best-path only */ |
1447 | metric = info->attr->med; | |
4e30bc2b | 1448 | |
1449 | /* Determine if we're doing weighted ECMP or not */ | |
f7e1c681 | 1450 | do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info); |
4e30bc2b | 1451 | if (do_wt_ecmp) |
1452 | cum_bw = bgp_path_info_mpath_cumbw(info); | |
1453 | ||
6348981a | 1454 | /* EVPN MAC-IP routes are installed with a L3 NHG id */ |
8bcb09a1 | 1455 | if (bgp_evpn_path_es_use_nhg(bgp, info, &nhg_id)) { |
6348981a | 1456 | mpinfo = NULL; |
8bcb09a1 AK |
1457 | api.nhgid = nhg_id; |
1458 | if (nhg_id) | |
1459 | SET_FLAG(api.message, ZAPI_MESSAGE_NHG); | |
1460 | } else { | |
6348981a | 1461 | mpinfo = info; |
8bcb09a1 | 1462 | } |
6348981a AK |
1463 | |
1464 | for (; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { | |
f7e1c681 | 1465 | uint32_t nh_weight; |
5609e70f | 1466 | bool is_evpn; |
f7e1c681 | 1467 | |
a74e593b RW |
1468 | if (valid_nh_count >= multipath_num) |
1469 | break; | |
1470 | ||
b4cb15c6 | 1471 | *mpinfo_cp = *mpinfo; |
f7e1c681 | 1472 | nh_weight = 0; |
b4cb15c6 | 1473 | |
d0d695f4 | 1474 | /* Get nexthop address-family */ |
7226bc40 TA |
1475 | if (p->family == AF_INET && |
1476 | !BGP_ATTR_MP_NEXTHOP_LEN_IP6(mpinfo_cp->attr)) | |
d0d695f4 | 1477 | nh_family = AF_INET; |
7226bc40 TA |
1478 | else if (p->family == AF_INET6 || |
1479 | (p->family == AF_INET && | |
1480 | BGP_ATTR_MP_NEXTHOP_LEN_IP6(mpinfo_cp->attr))) | |
d0d695f4 RW |
1481 | nh_family = AF_INET6; |
1482 | else | |
1483 | continue; | |
1484 | ||
f7e1c681 | 1485 | /* If processing for weighted ECMP, determine the next hop's |
1486 | * weight. Based on user setting, we may skip the next hop | |
1487 | * in some situations. | |
1488 | */ | |
1489 | if (do_wt_ecmp) { | |
1490 | if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr, | |
1491 | cum_bw, &nh_weight)) | |
1492 | continue; | |
1493 | } | |
1374aec9 | 1494 | api_nh = &api.nexthops[valid_nh_count]; |
ef3e0d04 SM |
1495 | |
1496 | if (CHECK_FLAG(info->attr->flag, | |
1497 | ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) | |
1498 | api_nh->srte_color = info->attr->srte_color; | |
1499 | ||
257b7b6e DS |
1500 | if (bgp_debug_zebra(&api.prefix)) { |
1501 | if (mpinfo->extra) { | |
70492dea DS |
1502 | zlog_debug("%s: p=%pFX, bgp_is_valid_label: %d", |
1503 | __func__, p, | |
257b7b6e DS |
1504 | bgp_is_valid_label( |
1505 | &mpinfo->extra->label[0])); | |
1506 | } else { | |
70492dea DS |
1507 | zlog_debug( |
1508 | "%s: p=%pFX, extra is NULL, no label", | |
1509 | __func__, p); | |
ddb5b488 | 1510 | } |
257b7b6e | 1511 | } |
ddb5b488 | 1512 | |
257b7b6e DS |
1513 | if (bgp->table_map[afi][safi].name) { |
1514 | /* Copy info and attributes, so the route-map | |
1515 | apply doesn't modify the BGP route info. */ | |
1516 | local_attr = *mpinfo->attr; | |
1517 | mpinfo_cp->attr = &local_attr; | |
1518 | if (!bgp_table_map_apply(bgp->table_map[afi][safi].map, | |
1519 | p, mpinfo_cp)) | |
1520 | continue; | |
b4cb15c6 | 1521 | |
257b7b6e DS |
1522 | /* metric/tag is only allowed to be |
1523 | * overridden on 1st nexthop */ | |
1524 | if (mpinfo == info) { | |
1525 | metric = mpinfo_cp->attr->med; | |
1526 | tag = mpinfo_cp->attr->tag; | |
b4cb15c6 | 1527 | } |
257b7b6e | 1528 | } |
d62a17ae | 1529 | |
ad1844f7 IS |
1530 | BGP_ORIGINAL_UPDATE(bgp_orig, mpinfo, bgp); |
1531 | ||
257b7b6e | 1532 | if (nh_family == AF_INET) { |
5609e70f XL |
1533 | is_evpn = is_route_parent_evpn(mpinfo); |
1534 | ||
77e62f2b | 1535 | nh_updated = update_ipv4nh_for_route_install( |
ad1844f7 IS |
1536 | nh_othervrf, bgp_orig, |
1537 | &mpinfo_cp->attr->nexthop, mpinfo_cp->attr, | |
1538 | is_evpn, api_nh); | |
2ad4f093 | 1539 | } else { |
f220da99 | 1540 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1541 | struct in6_addr *nexthop; |
9913029c | 1542 | |
18ee8310 DS |
1543 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1544 | &ifindex); | |
00c10664 | 1545 | |
5609e70f XL |
1546 | is_evpn = is_route_parent_evpn(mpinfo); |
1547 | ||
00c10664 DA |
1548 | if (!nexthop) |
1549 | nh_updated = update_ipv4nh_for_route_install( | |
ad1844f7 | 1550 | nh_othervrf, bgp_orig, |
00c10664 DA |
1551 | &mpinfo_cp->attr->nexthop, |
1552 | mpinfo_cp->attr, is_evpn, api_nh); | |
1553 | else | |
1554 | nh_updated = update_ipv6nh_for_route_install( | |
ad1844f7 IS |
1555 | nh_othervrf, bgp_orig, nexthop, ifindex, |
1556 | mpinfo, info, is_evpn, api_nh); | |
2ad4f093 | 1557 | } |
d62a17ae | 1558 | |
77e62f2b | 1559 | /* Did we get proper nexthop info to update zebra? */ |
1560 | if (!nh_updated) | |
1561 | continue; | |
1562 | ||
1a9cb083 JM |
1563 | /* Allow recursion if it is a multipath group with both |
1564 | * eBGP and iBGP paths. | |
1565 | */ | |
1566 | if (!allow_recursion | |
1567 | && CHECK_FLAG(bgp->flags, BGP_FLAG_PEERTYPE_MULTIPATH_RELAX) | |
1568 | && (mpinfo->peer->sort == BGP_PEER_IBGP | |
1569 | || mpinfo->peer->sort == BGP_PEER_CONFED)) | |
1570 | allow_recursion = true; | |
1571 | ||
5609e70f XL |
1572 | if (mpinfo->extra && |
1573 | bgp_is_valid_label(&mpinfo->extra->label[0]) && | |
1574 | !CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN)) { | |
67f67ba4 DA |
1575 | mpls_lse_decode(mpinfo->extra->label[0], &label, &ttl, |
1576 | &exp, &bos); | |
9913029c | 1577 | |
68a02e06 MS |
1578 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
1579 | ||
2ad4f093 RW |
1580 | api_nh->label_num = 1; |
1581 | api_nh->labels[0] = label; | |
d62a17ae | 1582 | } |
a2299aba AD |
1583 | |
1584 | if (is_evpn | |
1585 | && mpinfo->attr->evpn_overlay.type | |
1586 | != OVERLAY_INDEX_GATEWAY_IP) | |
1587 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), | |
1588 | sizeof(struct ethaddr)); | |
1589 | ||
f7e1c681 | 1590 | api_nh->weight = nh_weight; |
4e30bc2b | 1591 | |
db656439 RS |
1592 | if (mpinfo->extra && |
1593 | bgp_is_valid_label(&mpinfo->extra->label[0]) && | |
1594 | !sid_zero(&mpinfo->extra->sid[0].sid) && | |
5609e70f | 1595 | !CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN)) { |
ea7cd161 RS |
1596 | sid_info = &mpinfo->extra->sid[0]; |
1597 | ||
1598 | memcpy(&api_nh->seg6_segs, &sid_info->sid, | |
53a4de82 | 1599 | sizeof(api_nh->seg6_segs)); |
09e06fcf | 1600 | |
ea7cd161 | 1601 | if (sid_info->transposition_len != 0) { |
67f67ba4 DA |
1602 | mpls_lse_decode(mpinfo->extra->label[0], &label, |
1603 | &ttl, &exp, &bos); | |
db656439 RS |
1604 | |
1605 | if (label < MPLS_LABEL_UNRESERVED_MIN) { | |
1606 | if (bgp_debug_zebra(&api.prefix)) | |
1607 | zlog_debug( | |
1608 | "skip invalid SRv6 routes: transposition scheme is used, but label is too small"); | |
1609 | continue; | |
1610 | } | |
1611 | ||
ea7cd161 RS |
1612 | transpose_sid(&api_nh->seg6_segs, label, |
1613 | sid_info->transposition_offset, | |
1614 | sid_info->transposition_len); | |
1615 | } | |
1616 | ||
09e06fcf | 1617 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6); |
53a4de82 HS |
1618 | } |
1619 | ||
2ad4f093 RW |
1620 | valid_nh_count++; |
1621 | } | |
d62a17ae | 1622 | |
6348981a AK |
1623 | is_add = (valid_nh_count || nhg_id) ? true : false; |
1624 | ||
ec0acb80 | 1625 | if (is_add && CHECK_FLAG(bm->flags, BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA)) { |
94effaf0 | 1626 | struct bgp_zebra_opaque bzo = {}; |
1d7260a1 DA |
1627 | const char *reason = |
1628 | bgp_path_selection_reason2str(dest->reason); | |
94effaf0 DA |
1629 | |
1630 | strlcpy(bzo.aspath, info->attr->aspath->str, | |
1631 | sizeof(bzo.aspath)); | |
1632 | ||
1633 | if (info->attr->flag & ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES)) | |
9a706b42 DA |
1634 | strlcpy(bzo.community, |
1635 | bgp_attr_get_community(info->attr)->str, | |
94effaf0 DA |
1636 | sizeof(bzo.community)); |
1637 | ||
1638 | if (info->attr->flag | |
1639 | & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES)) | |
1bcf3a96 DA |
1640 | strlcpy(bzo.lcommunity, |
1641 | bgp_attr_get_lcommunity(info->attr)->str, | |
94effaf0 | 1642 | sizeof(bzo.lcommunity)); |
e46723a5 | 1643 | |
1d7260a1 DA |
1644 | strlcpy(bzo.selection_reason, reason, |
1645 | sizeof(bzo.selection_reason)); | |
1646 | ||
e46723a5 | 1647 | SET_FLAG(api.message, ZAPI_MESSAGE_OPAQUE); |
94effaf0 DA |
1648 | api.opaque.length = MIN(sizeof(struct bgp_zebra_opaque), |
1649 | ZAPI_MESSAGE_OPAQUE_LENGTH); | |
1650 | memcpy(api.opaque.data, &bzo, api.opaque.length); | |
e46723a5 DS |
1651 | } |
1652 | ||
1a9cb083 JM |
1653 | if (allow_recursion) |
1654 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); | |
1655 | ||
5cc347c4 DS |
1656 | /* |
1657 | * When we create an aggregate route we must also | |
1658 | * install a Null0 route in the RIB, so overwrite | |
1659 | * what was written into api with a blackhole route | |
1660 | */ | |
1661 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1662 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1663 | else | |
2ad4f093 | 1664 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1665 | |
2ad4f093 RW |
1666 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1667 | api.metric = metric; | |
d62a17ae | 1668 | |
2ad4f093 RW |
1669 | if (tag) { |
1670 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1671 | api.tag = tag; | |
1672 | } | |
d62a17ae | 1673 | |
2ad4f093 RW |
1674 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1675 | if (distance) { | |
1676 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1677 | api.distance = distance; | |
1678 | } | |
d62a17ae | 1679 | |
2ad4f093 | 1680 | if (bgp_debug_zebra(p)) { |
2ad4f093 | 1681 | char nh_buf[INET6_ADDRSTRLEN]; |
d8744f72 CS |
1682 | char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'}; |
1683 | char buf1[ETHER_ADDR_STRLEN]; | |
2ad4f093 | 1684 | char label_buf[20]; |
53a4de82 HS |
1685 | char sid_buf[20]; |
1686 | char segs_buf[256]; | |
2ad4f093 RW |
1687 | int i; |
1688 | ||
2dbe669b DA |
1689 | zlog_debug( |
1690 | "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI | |
6348981a | 1691 | " count %d nhg %d", |
4d67f4fc | 1692 | is_add ? "add" : "delete", bgp->vrf_id, &api.prefix, |
1693 | api.metric, api.tag, api.nexthop_num, nhg_id); | |
2ad4f093 RW |
1694 | for (i = 0; i < api.nexthop_num; i++) { |
1695 | api_nh = &api.nexthops[i]; | |
1696 | ||
1ee069db CS |
1697 | switch (api_nh->type) { |
1698 | case NEXTHOP_TYPE_IFINDEX: | |
77e62f2b | 1699 | nh_buf[0] = '\0'; |
1ee069db CS |
1700 | break; |
1701 | case NEXTHOP_TYPE_IPV4: | |
1702 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1703 | nh_family = AF_INET; | |
77e62f2b | 1704 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1705 | sizeof(nh_buf)); | |
1ee069db CS |
1706 | break; |
1707 | case NEXTHOP_TYPE_IPV6: | |
1708 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1709 | nh_family = AF_INET6; | |
1710 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1711 | sizeof(nh_buf)); | |
1712 | break; | |
1713 | case NEXTHOP_TYPE_BLACKHOLE: | |
1714 | strlcpy(nh_buf, "blackhole", sizeof(nh_buf)); | |
1715 | break; | |
1716 | default: | |
1717 | /* Note: add new nexthop case */ | |
1718 | assert(0); | |
1719 | break; | |
77e62f2b | 1720 | } |
2ad4f093 RW |
1721 | |
1722 | label_buf[0] = '\0'; | |
d8744f72 | 1723 | eth_buf[0] = '\0'; |
bbf32574 | 1724 | segs_buf[0] = '\0'; |
5609e70f XL |
1725 | if (CHECK_FLAG(api_nh->flags, |
1726 | ZAPI_NEXTHOP_FLAG_LABEL) && | |
1727 | !CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN)) | |
a7799788 CS |
1728 | snprintf(label_buf, sizeof(label_buf), |
1729 | "label %u", api_nh->labels[0]); | |
5609e70f XL |
1730 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6) && |
1731 | !CHECK_FLAG(api_nh->flags, | |
1732 | ZAPI_NEXTHOP_FLAG_EVPN)) { | |
53a4de82 HS |
1733 | inet_ntop(AF_INET6, &api_nh->seg6_segs, |
1734 | sid_buf, sizeof(sid_buf)); | |
1735 | snprintf(segs_buf, sizeof(segs_buf), "segs %s", | |
1736 | sid_buf); | |
1737 | } | |
5609e70f XL |
1738 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN) && |
1739 | !is_zero_mac(&api_nh->rmac)) | |
a7799788 CS |
1740 | snprintf(eth_buf, sizeof(eth_buf), " RMAC %s", |
1741 | prefix_mac2str(&api_nh->rmac, | |
1742 | buf1, sizeof(buf1))); | |
53a4de82 | 1743 | zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s %s", |
77e62f2b | 1744 | i + 1, nh_buf, api_nh->ifindex, |
4e30bc2b | 1745 | api_nh->vrf_id, api_nh->weight, |
53a4de82 | 1746 | label_buf, segs_buf, eth_buf); |
d62a17ae | 1747 | } |
2ad4f093 | 1748 | |
960035b2 PZ |
1749 | int recursion_flag = 0; |
1750 | ||
1751 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1752 | recursion_flag = 1; | |
1753 | ||
70492dea DS |
1754 | zlog_debug("%s: %pFX: announcing to zebra (recursion %sset)", |
1755 | __func__, p, (recursion_flag ? "" : "NOT ")); | |
960035b2 | 1756 | } |
6348981a | 1757 | zclient_route_send(is_add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, |
2ad4f093 | 1758 | zclient, &api); |
718e3744 | 1759 | } |
1760 | ||
73ac8160 | 1761 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1762 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1763 | { |
9bcb3eef | 1764 | struct bgp_dest *dest; |
d62a17ae | 1765 | struct bgp_table *table; |
40381db7 | 1766 | struct bgp_path_info *pi; |
d62a17ae | 1767 | |
1768 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1769 | * know of this instance. | |
1770 | */ | |
1771 | if (!bgp_install_info_to_zebra(bgp)) | |
1772 | return; | |
1773 | ||
1774 | table = bgp->rib[afi][safi]; | |
1775 | if (!table) | |
1776 | return; | |
1777 | ||
9bcb3eef DS |
1778 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) |
1779 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
40381db7 | 1780 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1781 | |
40381db7 DS |
1782 | (pi->type == ZEBRA_ROUTE_BGP |
1783 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1784 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1785 | |
9bcb3eef DS |
1786 | bgp_zebra_announce(dest, |
1787 | bgp_dest_get_prefix(dest), | |
b54892e0 | 1788 | pi, bgp, afi, safi); |
73ac8160 DS |
1789 | } |
1790 | ||
c163f297 DS |
1791 | /* Announce routes of any bgp subtype of a table to zebra */ |
1792 | void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi, | |
1793 | safi_t safi) | |
1794 | { | |
1795 | struct bgp_dest *dest; | |
1796 | struct bgp_table *table; | |
1797 | struct bgp_path_info *pi; | |
1798 | ||
1799 | if (!bgp_install_info_to_zebra(bgp)) | |
1800 | return; | |
1801 | ||
1802 | table = bgp->rib[afi][safi]; | |
1803 | if (!table) | |
1804 | return; | |
1805 | ||
1806 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) | |
1807 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
1808 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && | |
1809 | pi->type == ZEBRA_ROUTE_BGP) | |
1810 | bgp_zebra_announce(dest, | |
1811 | bgp_dest_get_prefix(dest), | |
1812 | pi, bgp, afi, safi); | |
1813 | } | |
1814 | ||
5a1ae2c2 | 1815 | void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1816 | struct bgp *bgp, safi_t safi) |
718e3744 | 1817 | { |
2ad4f093 | 1818 | struct zapi_route api; |
f7df1907 | 1819 | struct peer *peer; |
ddb5b488 | 1820 | |
d62a17ae | 1821 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1822 | * know of this instance. | |
1823 | */ | |
568e10ca | 1824 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1825 | return; |
1826 | ||
f7df1907 PG |
1827 | if (safi == SAFI_FLOWSPEC) { |
1828 | peer = info->peer; | |
d90b788e A |
1829 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1830 | return; | |
f7df1907 | 1831 | } |
529efa23 | 1832 | |
2ad4f093 | 1833 | memset(&api, 0, sizeof(api)); |
568e10ca | 1834 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1835 | api.type = ZEBRA_ROUTE_BGP; |
1836 | api.safi = safi; | |
1837 | api.prefix = *p; | |
d62a17ae | 1838 | |
1276ce38 PG |
1839 | if (info->attr->rmap_table_id) { |
1840 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1841 | api.tableid = info->attr->rmap_table_id; | |
1842 | } | |
1843 | ||
2dbe669b DA |
1844 | if (bgp_debug_zebra(p)) |
1845 | zlog_debug("Tx route delete VRF %u %pFX", bgp->vrf_id, | |
1846 | &api.prefix); | |
d62a17ae | 1847 | |
2ad4f093 | 1848 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1849 | } |
56c1f7d8 | 1850 | |
c163f297 DS |
1851 | /* Withdraw all entries in a BGP instances RIB table from Zebra */ |
1852 | void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi) | |
1853 | { | |
1854 | struct bgp_dest *dest; | |
1855 | struct bgp_table *table; | |
1856 | struct bgp_path_info *pi; | |
1857 | ||
1858 | if (!bgp_install_info_to_zebra(bgp)) | |
1859 | return; | |
1860 | ||
1861 | table = bgp->rib[afi][safi]; | |
1862 | if (!table) | |
1863 | return; | |
1864 | ||
1865 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) { | |
1866 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
1867 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) | |
1868 | && (pi->type == ZEBRA_ROUTE_BGP)) | |
1869 | bgp_zebra_withdraw(bgp_dest_get_prefix(dest), | |
1870 | pi, bgp, safi); | |
1871 | } | |
1872 | } | |
1873 | } | |
1874 | ||
d7c0a89a QY |
1875 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1876 | unsigned short instance) | |
7c8ff89e | 1877 | { |
d62a17ae | 1878 | struct list *red_list; |
1879 | struct listnode *node; | |
1880 | struct bgp_redist *red; | |
7c8ff89e | 1881 | |
d62a17ae | 1882 | red_list = bgp->redist[afi][type]; |
1883 | if (!red_list) | |
1884 | return (NULL); | |
7c8ff89e | 1885 | |
d62a17ae | 1886 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1887 | if (red->instance == instance) | |
1888 | return red; | |
7c8ff89e | 1889 | |
d62a17ae | 1890 | return NULL; |
7c8ff89e DS |
1891 | } |
1892 | ||
d7c0a89a QY |
1893 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1894 | unsigned short instance) | |
7c8ff89e | 1895 | { |
d62a17ae | 1896 | struct list *red_list; |
1897 | struct bgp_redist *red; | |
7c8ff89e | 1898 | |
d62a17ae | 1899 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1900 | if (red) | |
1901 | return red; | |
7c8ff89e | 1902 | |
d62a17ae | 1903 | if (!bgp->redist[afi][type]) |
1904 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1905 | |
d62a17ae | 1906 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1907 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1908 | red->instance = instance; |
7c8ff89e | 1909 | |
d62a17ae | 1910 | listnode_add(red_list, red); |
7c8ff89e | 1911 | |
d62a17ae | 1912 | return red; |
7c8ff89e DS |
1913 | } |
1914 | ||
d7c0a89a QY |
1915 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1916 | unsigned short instance) | |
7c8ff89e | 1917 | { |
d62a17ae | 1918 | struct bgp_redist *red; |
1919 | ||
1920 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1921 | ||
1922 | if (red) { | |
1923 | listnode_delete(bgp->redist[afi][type], red); | |
1924 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1925 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1926 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1927 | } |
7c8ff89e | 1928 | } |
6b0655a2 | 1929 | |
718e3744 | 1930 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1931 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1932 | unsigned short instance, bool changed) |
718e3744 | 1933 | { |
e923dd62 | 1934 | /* If redistribute options are changed call |
1935 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1936 | * the routes | |
1937 | */ | |
1938 | if (changed) | |
1939 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1940 | |
d62a17ae | 1941 | /* Return if already redistribute flag is set. */ |
1942 | if (instance) { | |
1943 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1944 | instance)) | |
1945 | return CMD_WARNING; | |
718e3744 | 1946 | |
d62a17ae | 1947 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1948 | } else { | |
d9083050 IR |
1949 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) |
1950 | return CMD_WARNING; | |
1951 | ||
49e5a4a0 | 1952 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1953 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1954 | vnc_export_bgp_enable( |
1955 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1956 | } | |
65efcfce LB |
1957 | #endif |
1958 | ||
d62a17ae | 1959 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1960 | } | |
718e3744 | 1961 | |
ea12cf11 DS |
1962 | /* |
1963 | * Don't try to register if we're not connected to Zebra or Zebra | |
1964 | * doesn't know of this instance. | |
1965 | * | |
1966 | * When we come up later well resend if needed. | |
d62a17ae | 1967 | */ |
1968 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1969 | return CMD_SUCCESS; |
a39275d7 | 1970 | |
d62a17ae | 1971 | if (BGP_DEBUG(zebra, ZEBRA)) |
1972 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1973 | bgp->vrf_id, afi, zebra_route_string(type), | |
1974 | instance); | |
518f0eb1 | 1975 | |
d62a17ae | 1976 | /* Send distribute add message to zebra. */ |
1977 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1978 | instance, bgp->vrf_id); | |
718e3744 | 1979 | |
d62a17ae | 1980 | return CMD_SUCCESS; |
718e3744 | 1981 | } |
1982 | ||
d62a17ae | 1983 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1984 | unsigned short instance) |
518f0eb1 | 1985 | { |
d62a17ae | 1986 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1987 | * know of this instance. | |
1988 | */ | |
1989 | if (!bgp_install_info_to_zebra(bgp)) | |
1990 | return -1; | |
1991 | ||
1992 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1993 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1994 | bgp->vrf_id, afi, zebra_route_string(type), | |
1995 | instance); | |
1996 | ||
1997 | /* Send distribute add message to zebra. */ | |
1998 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1999 | instance, bgp->vrf_id); | |
2000 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
2001 | instance, bgp->vrf_id); | |
2002 | ||
2003 | return 0; | |
518f0eb1 DS |
2004 | } |
2005 | ||
718e3744 | 2006 | /* Redistribute with route-map specification. */ |
3dc339cd DA |
2007 | bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
2008 | struct route_map *route_map) | |
718e3744 | 2009 | { |
d62a17ae | 2010 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
3dc339cd | 2011 | return false; |
718e3744 | 2012 | |
0a22ddfb | 2013 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 2014 | /* Decrement the count for existing routemap and |
2015 | * increment the count for new route map. | |
2016 | */ | |
2017 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 2018 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 2019 | red->rmap.map = route_map; |
b4897fa5 | 2020 | route_map_counter_increment(red->rmap.map); |
718e3744 | 2021 | |
3dc339cd | 2022 | return true; |
718e3744 | 2023 | } |
2024 | ||
2025 | /* Redistribute with metric specification. */ | |
3dc339cd DA |
2026 | bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
2027 | afi_t afi, int type, uint32_t metric) | |
718e3744 | 2028 | { |
9bcb3eef | 2029 | struct bgp_dest *dest; |
40381db7 | 2030 | struct bgp_path_info *pi; |
d62a17ae | 2031 | |
2032 | if (red->redist_metric_flag && red->redist_metric == metric) | |
3dc339cd | 2033 | return false; |
d62a17ae | 2034 | |
2035 | red->redist_metric_flag = 1; | |
2036 | red->redist_metric = metric; | |
2037 | ||
9bcb3eef DS |
2038 | for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest; |
2039 | dest = bgp_route_next(dest)) { | |
2040 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
40381db7 DS |
2041 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
2042 | && pi->type == type | |
2043 | && pi->instance == red->instance) { | |
d62a17ae | 2044 | struct attr *old_attr; |
2045 | struct attr new_attr; | |
2046 | ||
6f4f49b2 | 2047 | new_attr = *pi->attr; |
d62a17ae | 2048 | new_attr.med = red->redist_metric; |
40381db7 DS |
2049 | old_attr = pi->attr; |
2050 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 2051 | bgp_attr_unintern(&old_attr); |
2052 | ||
9bcb3eef | 2053 | bgp_path_info_set_flag(dest, pi, |
18ee8310 | 2054 | BGP_PATH_ATTR_CHANGED); |
9bcb3eef | 2055 | bgp_process(bgp, dest, afi, SAFI_UNICAST); |
d62a17ae | 2056 | } |
2057 | } | |
2058 | } | |
2059 | ||
3dc339cd | 2060 | return true; |
718e3744 | 2061 | } |
2062 | ||
2063 | /* Unset redistribution. */ | |
d62a17ae | 2064 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 2065 | unsigned short instance) |
718e3744 | 2066 | { |
d62a17ae | 2067 | struct bgp_redist *red; |
2068 | ||
2069 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
2070 | if (!red) | |
2071 | return CMD_SUCCESS; | |
2072 | ||
2073 | /* Return if zebra connection is disabled. */ | |
2074 | if (instance) { | |
2075 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
2076 | instance)) | |
2077 | return CMD_WARNING; | |
2078 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
2079 | } else { | |
2080 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
2081 | return CMD_WARNING; | |
2082 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
2083 | } | |
718e3744 | 2084 | |
d62a17ae | 2085 | if (bgp_install_info_to_zebra(bgp)) { |
2086 | /* Send distribute delete message to zebra. */ | |
2087 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2088 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
2089 | bgp->vrf_id, afi, zebra_route_string(type), | |
2090 | instance); | |
2091 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
2092 | type, instance, bgp->vrf_id); | |
2093 | } | |
2094 | ||
2095 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
2096 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
2097 | ||
2098 | return CMD_SUCCESS; | |
718e3744 | 2099 | } |
2100 | ||
6aeb9e78 | 2101 | /* Unset redistribution. */ |
d62a17ae | 2102 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 2103 | unsigned short instance) |
6aeb9e78 | 2104 | { |
d62a17ae | 2105 | struct bgp_redist *red; |
6aeb9e78 | 2106 | |
ddb5b488 PZ |
2107 | /* |
2108 | * vnc and vpn->vrf checks must be before red check because | |
2109 | * they operate within bgpd irrespective of zebra connection | |
2110 | * status. red lookup fails if there is no zebra connection. | |
2111 | */ | |
49e5a4a0 | 2112 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 2113 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
2114 | vnc_export_bgp_disable(bgp, afi); |
2115 | } | |
2116 | #endif | |
ddb5b488 | 2117 | |
d62a17ae | 2118 | red = bgp_redist_lookup(bgp, afi, type, instance); |
2119 | if (!red) | |
2120 | return CMD_SUCCESS; | |
6aeb9e78 | 2121 | |
d62a17ae | 2122 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 2123 | |
d62a17ae | 2124 | /* Unset route-map. */ |
0a22ddfb | 2125 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 2126 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 2127 | red->rmap.map = NULL; |
6aeb9e78 | 2128 | |
d62a17ae | 2129 | /* Unset metric. */ |
2130 | red->redist_metric_flag = 0; | |
2131 | red->redist_metric = 0; | |
6aeb9e78 | 2132 | |
d62a17ae | 2133 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 2134 | |
d62a17ae | 2135 | return CMD_SUCCESS; |
6aeb9e78 DS |
2136 | } |
2137 | ||
fc2408ec DS |
2138 | void bgp_redistribute_redo(struct bgp *bgp) |
2139 | { | |
2140 | afi_t afi; | |
2141 | int i; | |
2142 | struct list *red_list; | |
2143 | struct listnode *node; | |
2144 | struct bgp_redist *red; | |
2145 | ||
2146 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
2147 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
2148 | ||
2149 | red_list = bgp->redist[afi][i]; | |
2150 | if (!red_list) | |
2151 | continue; | |
2152 | ||
2153 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
2154 | bgp_redistribute_resend(bgp, afi, i, | |
2155 | red->instance); | |
2156 | } | |
2157 | } | |
2158 | } | |
2159 | } | |
2160 | ||
d62a17ae | 2161 | void bgp_zclient_reset(void) |
718e3744 | 2162 | { |
d62a17ae | 2163 | zclient_reset(zclient); |
718e3744 | 2164 | } |
2165 | ||
ad4cbda1 | 2166 | /* Register this instance with Zebra. Invoked upon connect (for |
2167 | * default instance) and when other VRFs are learnt (or created and | |
2168 | * already learnt). | |
2169 | */ | |
d62a17ae | 2170 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 2171 | { |
d62a17ae | 2172 | /* Don't try to register if we're not connected to Zebra */ |
2173 | if (!zclient || zclient->sock < 0) | |
2174 | return; | |
ad4cbda1 | 2175 | |
d62a17ae | 2176 | if (BGP_DEBUG(zebra, ZEBRA)) |
2177 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 2178 | |
d62a17ae | 2179 | /* Register for router-id, interfaces, redistributed routes. */ |
2180 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 2181 | |
e2f3a930 T |
2182 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
2183 | if (bgp->advertise_all_vni) | |
d62a17ae | 2184 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
2185 | |
2186 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 2187 | } |
2188 | ||
2189 | /* Deregister this instance with Zebra. Invoked upon the instance | |
2190 | * being deleted (default or VRF) and it is already registered. | |
2191 | */ | |
d62a17ae | 2192 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 2193 | { |
d62a17ae | 2194 | /* Don't try to deregister if we're not connected to Zebra */ |
2195 | if (zclient->sock < 0) | |
2196 | return; | |
ad4cbda1 | 2197 | |
d62a17ae | 2198 | if (BGP_DEBUG(zebra, ZEBRA)) |
2199 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 2200 | |
e2f3a930 T |
2201 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
2202 | if (bgp->advertise_all_vni) | |
d62a17ae | 2203 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 2204 | |
d62a17ae | 2205 | /* Deregister for router-id, interfaces, redistributed routes. */ |
2206 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 2207 | } |
2208 | ||
d62a17ae | 2209 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2210 | { |
bbad0276 | 2211 | uint32_t ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 2212 | |
d62a17ae | 2213 | /* Don't try to initiate if we're not connected to Zebra */ |
2214 | if (zclient->sock < 0) | |
2215 | return; | |
4a04e5f7 | 2216 | |
d62a17ae | 2217 | if (BGP_DEBUG(zebra, ZEBRA)) |
2218 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
2219 | peer->host); | |
4a04e5f7 | 2220 | |
b3a3290e DS |
2221 | /* |
2222 | * If unnumbered peer (peer->ifp) call thru zapi to start RAs. | |
2223 | * If we don't have an ifp pointer, call function to find the | |
2224 | * ifps for a numbered enhe peer to turn RAs on. | |
2225 | */ | |
2226 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2227 | peer->ifp, 1, ra_interval) | |
2228 | : bgp_nht_reg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2229 | } |
2230 | ||
d62a17ae | 2231 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2232 | { |
d62a17ae | 2233 | /* Don't try to terminate if we're not connected to Zebra */ |
2234 | if (zclient->sock < 0) | |
2235 | return; | |
4a04e5f7 | 2236 | |
d62a17ae | 2237 | if (BGP_DEBUG(zebra, ZEBRA)) |
2238 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
2239 | peer->host); | |
4a04e5f7 | 2240 | |
b3a3290e DS |
2241 | /* |
2242 | * If unnumbered peer (peer->ifp) call thru zapi to stop RAs. | |
2243 | * If we don't have an ifp pointer, call function to find the | |
2244 | * ifps for a numbered enhe peer to turn RAs off. | |
2245 | */ | |
2246 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2247 | peer->ifp, 0, 0) | |
2248 | : bgp_nht_dereg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2249 | } |
2250 | ||
31310b25 MK |
2251 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
2252 | { | |
2253 | struct stream *s = NULL; | |
2254 | ||
2255 | /* Check socket. */ | |
2256 | if (!zclient || zclient->sock < 0) | |
2257 | return 0; | |
2258 | ||
2259 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2260 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2261 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2262 | zlog_debug( |
2263 | "%s: No zebra instance to talk to, cannot advertise subnet", | |
2264 | __func__); | |
31310b25 | 2265 | return 0; |
bb4ef1ae | 2266 | } |
31310b25 MK |
2267 | |
2268 | s = zclient->obuf; | |
2269 | stream_reset(s); | |
2270 | ||
2271 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
2272 | stream_putc(s, advertise); | |
2273 | stream_put3(s, vni); | |
2274 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2275 | ||
2276 | return zclient_send_message(zclient); | |
2277 | } | |
2278 | ||
a8016157 CS |
2279 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
2280 | { | |
2281 | struct stream *s = NULL; | |
2282 | ||
2283 | /* Check socket. */ | |
2284 | if (!zclient || zclient->sock < 0) | |
2285 | return 0; | |
2286 | ||
2287 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2288 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2289 | return 0; | |
2290 | ||
2291 | s = zclient->obuf; | |
2292 | stream_reset(s); | |
2293 | ||
2294 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
2295 | stream_putc(s, advertise); | |
2296 | stream_putl(s, vni); | |
2297 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2298 | ||
2299 | return zclient_send_message(zclient); | |
2300 | } | |
2301 | ||
1a98c087 MK |
2302 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
2303 | { | |
2304 | struct stream *s = NULL; | |
2305 | ||
2306 | /* Check socket. */ | |
2307 | if (!zclient || zclient->sock < 0) | |
2308 | return 0; | |
2309 | ||
2310 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2311 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2312 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2313 | zlog_debug( |
2314 | "%s: No zebra instance to talk to, not installing gw_macip", | |
2315 | __func__); | |
1a98c087 | 2316 | return 0; |
bb4ef1ae | 2317 | } |
1a98c087 MK |
2318 | |
2319 | s = zclient->obuf; | |
2320 | stream_reset(s); | |
2321 | ||
2322 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
2323 | stream_putc(s, advertise); | |
cc6d5476 | 2324 | stream_putl(s, vni); |
1a98c087 MK |
2325 | stream_putw_at(s, 0, stream_get_endp(s)); |
2326 | ||
2327 | return zclient_send_message(zclient); | |
2328 | } | |
2329 | ||
fd069644 DS |
2330 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
2331 | enum vxlan_flood_control flood_ctrl) | |
2332 | { | |
2333 | struct stream *s; | |
2334 | ||
2335 | /* Check socket. */ | |
2336 | if (!zclient || zclient->sock < 0) | |
2337 | return 0; | |
2338 | ||
2339 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2340 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2341 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2342 | zlog_debug( |
2343 | "%s: No zebra instance to talk to, not installing all vni", | |
2344 | __func__); | |
fd069644 | 2345 | return 0; |
bb4ef1ae | 2346 | } |
fd069644 DS |
2347 | |
2348 | s = zclient->obuf; | |
2349 | stream_reset(s); | |
2350 | ||
2351 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2352 | stream_putc(s, flood_ctrl); | |
2353 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2354 | ||
2355 | return zclient_send_message(zclient); | |
2356 | } | |
2357 | ||
d62a17ae | 2358 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2359 | { |
d62a17ae | 2360 | struct stream *s; |
7724c0a1 | 2361 | |
d62a17ae | 2362 | /* Check socket. */ |
2363 | if (!zclient || zclient->sock < 0) | |
2364 | return 0; | |
7724c0a1 | 2365 | |
d62a17ae | 2366 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2367 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2368 | return 0; | |
7724c0a1 | 2369 | |
d62a17ae | 2370 | s = zclient->obuf; |
2371 | stream_reset(s); | |
7724c0a1 | 2372 | |
d62a17ae | 2373 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2374 | stream_putc(s, advertise); | |
fbac9605 DS |
2375 | /* Also inform current BUM handling setting. This is really |
2376 | * relevant only when 'advertise' is set. | |
2377 | */ | |
fd069644 | 2378 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2379 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2380 | |
d62a17ae | 2381 | return zclient_send_message(zclient); |
7724c0a1 | 2382 | } |
2383 | ||
0b9d9cd0 CS |
2384 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2385 | { | |
2386 | struct stream *s; | |
2387 | ||
2388 | /* Check socket. */ | |
2389 | if (!zclient || zclient->sock < 0) | |
2390 | return 0; | |
2391 | ||
2392 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2393 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2394 | return 0; | |
2395 | ||
2396 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2397 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2398 | bgp->evpn_info->dup_addr_detect ? | |
2399 | "enable" : "disable", | |
2400 | bgp->evpn_info->dad_max_moves, | |
2401 | bgp->evpn_info->dad_time, | |
2402 | bgp->evpn_info->dad_freeze ? | |
2403 | "enable" : "disable", | |
2404 | bgp->evpn_info->dad_freeze_time); | |
2405 | ||
2406 | s = zclient->obuf; | |
2407 | stream_reset(s); | |
2408 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2409 | bgp->vrf_id); | |
2410 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2411 | stream_putl(s, bgp->evpn_info->dad_time); | |
2412 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2413 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2414 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2415 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2416 | ||
2417 | return zclient_send_message(zclient); | |
2418 | } | |
2419 | ||
121f9dee | 2420 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2421 | { |
2422 | uint32_t seqno, priority, unique; | |
2423 | enum zapi_rule_notify_owner note; | |
2424 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2425 | struct bgp_pbr_rule *bgp_pbr = NULL; |
58a1d249 | 2426 | char ifname[INTERFACE_NAMSIZ + 1]; |
30d50e6d PG |
2427 | |
2428 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
58a1d249 | 2429 | ifname, ¬e)) |
30d50e6d PG |
2430 | return -1; |
2431 | ||
70eabd12 | 2432 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2433 | if (!bgp_pbra) { |
ffee150e PG |
2434 | /* look in bgp pbr rule */ |
2435 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2436 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2437 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2438 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
15569c58 | 2439 | __func__, unique); |
ffee150e PG |
2440 | return 0; |
2441 | } | |
30d50e6d PG |
2442 | } |
2443 | ||
2444 | switch (note) { | |
2445 | case ZAPI_RULE_FAIL_INSTALL: | |
2446 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2447 | zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__); |
ffee150e PG |
2448 | if (bgp_pbra) { |
2449 | bgp_pbra->installed = false; | |
2450 | bgp_pbra->install_in_progress = false; | |
2451 | } else { | |
2452 | bgp_pbr->installed = false; | |
2453 | bgp_pbr->install_in_progress = false; | |
2454 | } | |
30d50e6d PG |
2455 | break; |
2456 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2457 | if (bgp_pbra) { |
2458 | bgp_pbra->installed = true; | |
2459 | bgp_pbra->install_in_progress = false; | |
2460 | } else { | |
ce3c0614 PG |
2461 | struct bgp_path_info *path; |
2462 | struct bgp_path_info_extra *extra; | |
2463 | ||
ffee150e PG |
2464 | bgp_pbr->installed = true; |
2465 | bgp_pbr->install_in_progress = false; | |
2466 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2467 | /* link bgp_info to bgp_pbr */ |
2468 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2469 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2470 | listnode_add_force(&extra->bgp_fs_iprule, |
2471 | bgp_pbr); | |
ffee150e | 2472 | } |
30d50e6d | 2473 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 | 2474 | zlog_debug("%s: Received RULE_INSTALLED", __func__); |
30d50e6d | 2475 | break; |
f18a08f5 | 2476 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2477 | case ZAPI_RULE_REMOVED: |
2478 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2479 | zlog_debug("%s: Received RULE REMOVED", __func__); |
30d50e6d PG |
2480 | break; |
2481 | } | |
2482 | ||
2483 | return 0; | |
2484 | } | |
2485 | ||
121f9dee | 2486 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2487 | { |
2488 | uint32_t unique; | |
2489 | enum zapi_ipset_notify_owner note; | |
2490 | struct bgp_pbr_match *bgp_pbim; | |
2491 | ||
2492 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2493 | &unique, | |
2494 | ¬e)) | |
2495 | return -1; | |
2496 | ||
2497 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2498 | if (!bgp_pbim) { | |
2499 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2500 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
15569c58 | 2501 | __func__, note, unique); |
30d50e6d PG |
2502 | return 0; |
2503 | } | |
2504 | ||
2505 | switch (note) { | |
2506 | case ZAPI_IPSET_FAIL_INSTALL: | |
2507 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2508 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__); |
30d50e6d PG |
2509 | bgp_pbim->installed = false; |
2510 | bgp_pbim->install_in_progress = false; | |
2511 | break; | |
2512 | case ZAPI_IPSET_INSTALLED: | |
2513 | bgp_pbim->installed = true; | |
2514 | bgp_pbim->install_in_progress = false; | |
2515 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2516 | zlog_debug("%s: Received IPSET_INSTALLED", __func__); |
30d50e6d | 2517 | break; |
f18a08f5 | 2518 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2519 | case ZAPI_IPSET_REMOVED: |
2520 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2521 | zlog_debug("%s: Received IPSET REMOVED", __func__); |
30d50e6d PG |
2522 | break; |
2523 | } | |
2524 | ||
2525 | return 0; | |
2526 | } | |
2527 | ||
121f9dee | 2528 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2529 | { |
2530 | uint32_t unique; | |
2531 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2532 | enum zapi_ipset_entry_notify_owner note; | |
2533 | struct bgp_pbr_match_entry *bgp_pbime; | |
2534 | ||
2535 | if (!zapi_ipset_entry_notify_decode( | |
2536 | zclient->ibuf, | |
2537 | &unique, | |
2538 | ipset_name, | |
2539 | ¬e)) | |
2540 | return -1; | |
2541 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2542 | ipset_name, | |
2543 | unique); | |
2544 | if (!bgp_pbime) { | |
2545 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2546 | zlog_debug( |
2547 | "%s: Fail to look BGP match entry (%u, ID %u)", | |
2548 | __func__, note, unique); | |
30d50e6d PG |
2549 | return 0; |
2550 | } | |
2551 | ||
2552 | switch (note) { | |
2553 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2554 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2555 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
15569c58 | 2556 | __func__); |
30d50e6d PG |
2557 | bgp_pbime->installed = false; |
2558 | bgp_pbime->install_in_progress = false; | |
2559 | break; | |
2560 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2561 | { |
9b6d8fcf | 2562 | struct bgp_path_info *path; |
4b7e6066 DS |
2563 | struct bgp_path_info_extra *extra; |
2564 | ||
2565 | bgp_pbime->installed = true; | |
2566 | bgp_pbime->install_in_progress = false; | |
2567 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2568 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
15569c58 | 2569 | __func__); |
9b6d8fcf DS |
2570 | /* link bgp_path_info to bpme */ |
2571 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2572 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2573 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2574 | } |
30d50e6d | 2575 | break; |
f18a08f5 | 2576 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2577 | case ZAPI_IPSET_ENTRY_REMOVED: |
2578 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2579 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
15569c58 | 2580 | __func__); |
30d50e6d PG |
2581 | break; |
2582 | } | |
2583 | return 0; | |
2584 | } | |
2585 | ||
121f9dee | 2586 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2587 | { |
2588 | uint32_t unique; | |
2589 | enum zapi_iptable_notify_owner note; | |
2590 | struct bgp_pbr_match *bgpm; | |
2591 | ||
2592 | if (!zapi_iptable_notify_decode( | |
2593 | zclient->ibuf, | |
2594 | &unique, | |
2595 | ¬e)) | |
2596 | return -1; | |
2597 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2598 | if (!bgpm) { | |
2599 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed | 2600 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
15569c58 | 2601 | __func__, note, unique); |
c16a0a62 PG |
2602 | return 0; |
2603 | } | |
2604 | switch (note) { | |
2605 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2606 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2607 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
15569c58 | 2608 | __func__); |
c16a0a62 PG |
2609 | bgpm->installed_in_iptable = false; |
2610 | bgpm->install_iptable_in_progress = false; | |
2611 | break; | |
2612 | case ZAPI_IPTABLE_INSTALLED: | |
2613 | bgpm->installed_in_iptable = true; | |
2614 | bgpm->install_iptable_in_progress = false; | |
2615 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2616 | zlog_debug("%s: Received IPTABLE_INSTALLED", __func__); |
a6b07429 | 2617 | bgpm->action->refcnt++; |
c16a0a62 | 2618 | break; |
f18a08f5 | 2619 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2620 | case ZAPI_IPTABLE_REMOVED: |
2621 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2622 | zlog_debug("%s: Received IPTABLE REMOVED", __func__); |
c16a0a62 PG |
2623 | break; |
2624 | } | |
2625 | return 0; | |
2626 | } | |
2627 | ||
a77e2f4b S |
2628 | /* Process route notification messages from RIB */ |
2629 | static int bgp_zebra_route_notify_owner(int command, struct zclient *zclient, | |
2630 | zebra_size_t length, vrf_id_t vrf_id) | |
2631 | { | |
2632 | struct prefix p; | |
2633 | enum zapi_route_notify_owner note; | |
2634 | uint32_t table_id; | |
a77e2f4b S |
2635 | afi_t afi; |
2636 | safi_t safi; | |
2637 | struct bgp_dest *dest; | |
2638 | struct bgp *bgp; | |
2639 | struct bgp_path_info *pi, *new_select; | |
2640 | ||
2641 | if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, ¬e, | |
2642 | &afi, &safi)) { | |
cc42c4f0 | 2643 | zlog_err("%s : error in msg decode", __func__); |
a77e2f4b S |
2644 | return -1; |
2645 | } | |
2646 | ||
2647 | /* Get the bgp instance */ | |
2648 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2649 | if (!bgp) { | |
2650 | flog_err(EC_BGP_INVALID_BGP_INSTANCE, | |
cc42c4f0 DS |
2651 | "%s : bgp instance not found vrf %d", __func__, |
2652 | vrf_id); | |
a77e2f4b S |
2653 | return -1; |
2654 | } | |
2655 | ||
a77e2f4b S |
2656 | /* Find the bgp route node */ |
2657 | dest = bgp_afi_node_lookup(bgp->rib[afi][safi], afi, safi, &p, | |
2658 | &bgp->vrf_prd); | |
2659 | if (!dest) | |
2660 | return -1; | |
2661 | ||
a77e2f4b S |
2662 | switch (note) { |
2663 | case ZAPI_ROUTE_INSTALLED: | |
2664 | new_select = NULL; | |
2665 | /* Clear the flags so that route can be processed */ | |
be785e35 DS |
2666 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); |
2667 | SET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2668 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2669 | zlog_debug("route %pRN : INSTALLED", dest); | |
2670 | /* Find the best route */ | |
2671 | for (pi = dest->info; pi; pi = pi->next) { | |
2672 | /* Process aggregate route */ | |
2673 | bgp_aggregate_increment(bgp, &p, pi, afi, safi); | |
2674 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2675 | new_select = pi; | |
2676 | } | |
2677 | /* Advertise the route */ | |
2678 | if (new_select) | |
2679 | group_announce_route(bgp, afi, safi, dest, new_select); | |
2680 | else { | |
2681 | flog_err(EC_BGP_INVALID_ROUTE, | |
2682 | "selected route %pRN not found", dest); | |
2683 | ||
2684 | bgp_dest_unlock_node(dest); | |
2685 | return -1; | |
a77e2f4b S |
2686 | } |
2687 | break; | |
2688 | case ZAPI_ROUTE_REMOVED: | |
2689 | /* Route deleted from dataplane, reset the installed flag | |
2690 | * so that route can be reinstalled when client sends | |
2691 | * route add later | |
2692 | */ | |
2693 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
1a3519b6 DS |
2694 | if (BGP_DEBUG(zebra, ZEBRA)) |
2695 | zlog_debug("route %pRN: Removed from Fib", dest); | |
a77e2f4b S |
2696 | break; |
2697 | case ZAPI_ROUTE_FAIL_INSTALL: | |
be785e35 | 2698 | new_select = NULL; |
1a3519b6 DS |
2699 | if (BGP_DEBUG(zebra, ZEBRA)) |
2700 | zlog_debug("route: %pRN Failed to Install into Fib", | |
2701 | dest); | |
be785e35 DS |
2702 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); |
2703 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2704 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
2705 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2706 | new_select = pi; | |
2707 | } | |
2708 | if (new_select) | |
2709 | group_announce_route(bgp, afi, safi, dest, new_select); | |
a77e2f4b S |
2710 | /* Error will be logged by zebra module */ |
2711 | break; | |
2712 | case ZAPI_ROUTE_BETTER_ADMIN_WON: | |
1a3519b6 DS |
2713 | if (BGP_DEBUG(zebra, ZEBRA)) |
2714 | zlog_debug("route: %pRN removed due to better admin won", | |
2715 | dest); | |
be785e35 DS |
2716 | new_select = NULL; |
2717 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); | |
2718 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2719 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
2720 | bgp_aggregate_decrement(bgp, &p, pi, afi, safi); | |
2721 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2722 | new_select = pi; | |
2723 | } | |
2724 | if (new_select) | |
2725 | group_announce_route(bgp, afi, safi, dest, new_select); | |
a77e2f4b S |
2726 | /* No action required */ |
2727 | break; | |
2728 | case ZAPI_ROUTE_REMOVE_FAIL: | |
1a3519b6 DS |
2729 | zlog_warn("%s: Route %pRN failure to remove", |
2730 | __func__, dest); | |
a77e2f4b S |
2731 | break; |
2732 | } | |
e71ad4b6 DA |
2733 | |
2734 | bgp_dest_unlock_node(dest); | |
a77e2f4b S |
2735 | return 0; |
2736 | } | |
2737 | ||
6cfe5d15 PG |
2738 | /* this function is used to forge ip rule, |
2739 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2740 | * - or for sample ip rule cmd |
6cfe5d15 | 2741 | */ |
30d50e6d | 2742 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2743 | struct bgp_pbr_action *pbra, |
2744 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2745 | { |
6cfe5d15 | 2746 | struct prefix pfx; |
f01e580f | 2747 | uint8_t fam = AF_INET; |
e95666cb | 2748 | char ifname[INTERFACE_NAMSIZ]; |
30d50e6d | 2749 | |
9f1f03ec | 2750 | if (pbra->nh.type == NEXTHOP_TYPE_IPV6) |
f01e580f | 2751 | fam = AF_INET6; |
30d50e6d | 2752 | stream_putl(s, 0); /* seqno unused */ |
8112a7a0 PG |
2753 | if (pbr) |
2754 | stream_putl(s, pbr->priority); | |
2755 | else | |
2756 | stream_putl(s, 0); | |
2757 | /* ruleno unused - priority change | |
2758 | * ruleno permits distinguishing various FS PBR entries | |
2759 | * - FS PBR entries based on ipset/iptables | |
2760 | * - FS PBR entries based on iprule | |
2761 | * the latter may contain default routing information injected by FS | |
2762 | */ | |
6cfe5d15 PG |
2763 | if (pbr) |
2764 | stream_putl(s, pbr->unique); | |
2765 | else | |
2766 | stream_putl(s, pbra->unique); | |
f56697ef | 2767 | stream_putc(s, 0); /* ip protocol being used */ |
6cfe5d15 PG |
2768 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) |
2769 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2770 | else { | |
2771 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2772 | pfx.family = fam; |
6cfe5d15 PG |
2773 | } |
2774 | stream_putc(s, pfx.family); | |
2775 | stream_putc(s, pfx.prefixlen); | |
2776 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2777 | |
2778 | stream_putw(s, 0); /* src port */ | |
2779 | ||
6cfe5d15 PG |
2780 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2781 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2782 | else { | |
2783 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2784 | pfx.family = fam; |
6cfe5d15 PG |
2785 | } |
2786 | stream_putc(s, pfx.family); | |
2787 | stream_putc(s, pfx.prefixlen); | |
2788 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2789 | |
2790 | stream_putw(s, 0); /* dst port */ | |
e95666cb | 2791 | stream_putc(s, 0); /* dsfield */ |
6cfe5d15 PG |
2792 | /* if pbr present, fwmark is not used */ |
2793 | if (pbr) | |
2794 | stream_putl(s, 0); | |
2795 | else | |
2796 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d | 2797 | |
62bf6b42 DS |
2798 | stream_putl(s, 0); /* queue id */ |
2799 | stream_putw(s, 0); /* vlan_id */ | |
2800 | stream_putw(s, 0); /* vlan_flags */ | |
2801 | stream_putw(s, 0); /* pcp */ | |
2802 | ||
30d50e6d PG |
2803 | stream_putl(s, pbra->table_id); |
2804 | ||
e95666cb DS |
2805 | memset(ifname, 0, sizeof(ifname)); |
2806 | stream_put(s, ifname, INTERFACE_NAMSIZ); /* ifname unused */ | |
30d50e6d PG |
2807 | } |
2808 | ||
2809 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2810 | struct bgp_pbr_match *pbim) | |
2811 | { | |
2812 | stream_putl(s, pbim->unique); | |
2813 | stream_putl(s, pbim->type); | |
a60b7031 | 2814 | stream_putc(s, pbim->family); |
30d50e6d PG |
2815 | stream_put(s, pbim->ipset_name, |
2816 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2817 | } |
2818 | ||
2819 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2820 | struct bgp_pbr_match_entry *pbime) | |
2821 | { | |
2822 | stream_putl(s, pbime->unique); | |
2823 | /* check that back pointer is not null */ | |
2824 | stream_put(s, pbime->backpointer->ipset_name, | |
2825 | ZEBRA_IPSET_NAME_SIZE); | |
2826 | ||
2827 | stream_putc(s, pbime->src.family); | |
2828 | stream_putc(s, pbime->src.prefixlen); | |
2829 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2830 | ||
2831 | stream_putc(s, pbime->dst.family); | |
2832 | stream_putc(s, pbime->dst.prefixlen); | |
2833 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2834 | |
2835 | stream_putw(s, pbime->src_port_min); | |
2836 | stream_putw(s, pbime->src_port_max); | |
2837 | stream_putw(s, pbime->dst_port_min); | |
2838 | stream_putw(s, pbime->dst_port_max); | |
2839 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2840 | } |
2841 | ||
c16a0a62 PG |
2842 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2843 | struct bgp_pbr_action *bpa, | |
2844 | struct bgp_pbr_match *pbm) | |
2845 | { | |
2846 | stream_putl(s, pbm->unique2); | |
2847 | ||
2848 | stream_putl(s, pbm->type); | |
2849 | ||
2850 | stream_putl(s, pbm->flags); | |
2851 | ||
2852 | /* TODO: correlate with what is contained | |
2853 | * into bgp_pbr_action. | |
2854 | * currently only forward supported | |
2855 | */ | |
2856 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2857 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2858 | else | |
2859 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2860 | stream_putl(s, bpa->fwmark); | |
2861 | stream_put(s, pbm->ipset_name, | |
2862 | ZEBRA_IPSET_NAME_SIZE); | |
a60b7031 | 2863 | stream_putc(s, pbm->family); |
83360720 PG |
2864 | stream_putw(s, pbm->pkt_len_min); |
2865 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2866 | stream_putw(s, pbm->tcp_flags); |
2867 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2868 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2869 | stream_putc(s, pbm->fragment); |
f449d223 | 2870 | stream_putc(s, pbm->protocol); |
a60b7031 | 2871 | stream_putw(s, pbm->flow_label); |
c16a0a62 PG |
2872 | } |
2873 | ||
ad4cbda1 | 2874 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2875 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2876 | { |
d62a17ae | 2877 | struct bgp *bgp; |
7076bb2f | 2878 | |
d62a17ae | 2879 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2880 | |
6bfcd0f1 IR |
2881 | /* Send the client registration */ |
2882 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT); | |
2883 | ||
d62a17ae | 2884 | /* At this point, we may or may not have BGP instances configured, but |
2885 | * we're only interested in the default VRF (others wouldn't have learnt | |
2886 | * the VRF from Zebra yet.) | |
2887 | */ | |
2888 | bgp = bgp_get_default(); | |
2889 | if (!bgp) | |
2890 | return; | |
ad4cbda1 | 2891 | |
d62a17ae | 2892 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2893 | |
955bfd98 | 2894 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2895 | bgp_lp_event_zebra_up(); |
955bfd98 | 2896 | |
d62a17ae | 2897 | /* TODO - What if we have peers and networks configured, do we have to |
2898 | * kick-start them? | |
2899 | */ | |
85ef4179 | 2900 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer); |
7076bb2f FL |
2901 | } |
2902 | ||
c44ab6f1 AK |
2903 | static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS) |
2904 | { | |
2905 | esi_t esi; | |
2906 | struct bgp *bgp = NULL; | |
2907 | struct stream *s = NULL; | |
2908 | char buf[ESI_STR_LEN]; | |
2909 | struct in_addr originator_ip; | |
2910 | uint8_t active; | |
74be8313 | 2911 | uint8_t bypass; |
74e2bd89 | 2912 | uint16_t df_pref; |
c44ab6f1 AK |
2913 | |
2914 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2915 | if (!bgp) | |
2916 | return 0; | |
2917 | ||
2918 | s = zclient->ibuf; | |
2919 | stream_get(&esi, s, sizeof(esi_t)); | |
2920 | originator_ip.s_addr = stream_get_ipv4(s); | |
2921 | active = stream_getc(s); | |
74e2bd89 | 2922 | df_pref = stream_getw(s); |
74be8313 | 2923 | bypass = stream_getc(s); |
c44ab6f1 AK |
2924 | |
2925 | if (BGP_DEBUG(zebra, ZEBRA)) | |
74e2bd89 | 2926 | zlog_debug( |
74be8313 AK |
2927 | "Rx add ESI %s originator-ip %pI4 active %u df_pref %u %s", |
2928 | esi_to_str(&esi, buf, sizeof(buf)), &originator_ip, | |
2929 | active, df_pref, bypass ? "bypass" : ""); | |
c44ab6f1 | 2930 | |
a383bfc7 AK |
2931 | frrtrace(5, frr_bgp, evpn_mh_local_es_add_zrecv, &esi, originator_ip, |
2932 | active, bypass, df_pref); | |
2933 | ||
74be8313 AK |
2934 | bgp_evpn_local_es_add(bgp, &esi, originator_ip, active, df_pref, |
2935 | !!bypass); | |
c44ab6f1 AK |
2936 | |
2937 | return 0; | |
2938 | } | |
2939 | ||
2940 | static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS) | |
50f74cf1 | 2941 | { |
2942 | esi_t esi; | |
2943 | struct bgp *bgp = NULL; | |
2944 | struct stream *s = NULL; | |
2945 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2946 | |
2947 | memset(&esi, 0, sizeof(esi_t)); | |
c44ab6f1 AK |
2948 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2949 | if (!bgp) | |
2950 | return 0; | |
2951 | ||
2952 | s = zclient->ibuf; | |
2953 | stream_get(&esi, s, sizeof(esi_t)); | |
2954 | ||
2955 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2956 | zlog_debug("Rx del ESI %s", | |
2957 | esi_to_str(&esi, buf, sizeof(buf))); | |
2958 | ||
a383bfc7 AK |
2959 | frrtrace(1, frr_bgp, evpn_mh_local_es_del_zrecv, &esi); |
2960 | ||
c44ab6f1 AK |
2961 | bgp_evpn_local_es_del(bgp, &esi); |
2962 | ||
2963 | return 0; | |
2964 | } | |
2965 | ||
2966 | static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS) | |
2967 | { | |
2968 | esi_t esi; | |
2969 | vni_t vni; | |
2970 | struct bgp *bgp; | |
2971 | struct stream *s; | |
2972 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2973 | |
2974 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2975 | if (!bgp) | |
2976 | return 0; | |
2977 | ||
2978 | s = zclient->ibuf; | |
2979 | stream_get(&esi, s, sizeof(esi_t)); | |
c44ab6f1 | 2980 | vni = stream_getl(s); |
50f74cf1 | 2981 | |
2982 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c44ab6f1 | 2983 | zlog_debug("Rx %s ESI %s VNI %u", |
3756b9ac IS |
2984 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
2985 | esi_to_str(&esi, buf, sizeof(buf)), vni); | |
50f74cf1 | 2986 | |
a383bfc7 AK |
2987 | if (cmd == ZEBRA_LOCAL_ES_EVI_ADD) { |
2988 | frrtrace(2, frr_bgp, evpn_mh_local_es_evi_add_zrecv, &esi, vni); | |
2989 | ||
c44ab6f1 | 2990 | bgp_evpn_local_es_evi_add(bgp, &esi, vni); |
a383bfc7 AK |
2991 | } else { |
2992 | frrtrace(2, frr_bgp, evpn_mh_local_es_evi_del_zrecv, &esi, vni); | |
2993 | ||
c44ab6f1 | 2994 | bgp_evpn_local_es_evi_del(bgp, &esi, vni); |
a383bfc7 | 2995 | } |
c44ab6f1 | 2996 | |
50f74cf1 | 2997 | return 0; |
2998 | } | |
2999 | ||
121f9dee | 3000 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 3001 | { |
c48d9f5f | 3002 | int filter = 0; |
b67a60d2 | 3003 | vni_t l3vni = 0; |
14e814ea | 3004 | struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} }; |
b67a60d2 | 3005 | struct in_addr originator_ip; |
fe1dc5a3 | 3006 | struct stream *s; |
0483af6e | 3007 | ifindex_t svi_ifindex; |
14e814ea | 3008 | bool is_anycast_mac = false; |
fe1dc5a3 | 3009 | |
6006b807 DA |
3010 | memset(&svi_rmac, 0, sizeof(svi_rmac)); |
3011 | memset(&originator_ip, 0, sizeof(originator_ip)); | |
fe1dc5a3 MK |
3012 | s = zclient->ibuf; |
3013 | l3vni = stream_getl(s); | |
b67a60d2 | 3014 | if (cmd == ZEBRA_L3VNI_ADD) { |
14e814ea | 3015 | stream_get(&svi_rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 3016 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 3017 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 3018 | svi_ifindex = stream_getl(s); |
14e814ea CS |
3019 | stream_get(&vrr_rmac, s, sizeof(struct ethaddr)); |
3020 | is_anycast_mac = stream_getl(s); | |
fe1dc5a3 | 3021 | |
0483af6e | 3022 | if (BGP_DEBUG(zebra, ZEBRA)) |
c0d72166 DS |
3023 | zlog_debug( |
3024 | "Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %pEA vrr-mac %pEA filter %s svi-if %u", | |
3025 | vrf_id_to_name(vrf_id), l3vni, &svi_rmac, | |
3026 | &vrr_rmac, | |
3027 | filter ? "prefix-routes-only" : "none", | |
3028 | svi_ifindex); | |
fe1dc5a3 | 3029 | |
a383bfc7 AK |
3030 | frrtrace(8, frr_bgp, evpn_local_l3vni_add_zrecv, l3vni, vrf_id, |
3031 | &svi_rmac, &vrr_rmac, filter, originator_ip, | |
3032 | svi_ifindex, is_anycast_mac); | |
3033 | ||
14e814ea CS |
3034 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac, |
3035 | originator_ip, filter, svi_ifindex, | |
3036 | is_anycast_mac); | |
0483af6e | 3037 | } else { |
3038 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3039 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
3040 | vrf_id_to_name(vrf_id), l3vni); | |
3041 | ||
a383bfc7 AK |
3042 | frrtrace(2, frr_bgp, evpn_local_l3vni_del_zrecv, l3vni, vrf_id); |
3043 | ||
fe1dc5a3 | 3044 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 3045 | } |
fe1dc5a3 MK |
3046 | |
3047 | return 0; | |
3048 | } | |
3049 | ||
121f9dee | 3050 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 3051 | { |
d62a17ae | 3052 | struct stream *s; |
3053 | vni_t vni; | |
3054 | struct bgp *bgp; | |
a4d82a8a | 3055 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 3056 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 3057 | struct in_addr mcast_grp = {INADDR_ANY}; |
9daa5d47 | 3058 | ifindex_t svi_ifindex = 0; |
d62a17ae | 3059 | |
3060 | s = zclient->ibuf; | |
3061 | vni = stream_getl(s); | |
121f9dee | 3062 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 3063 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 3064 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 3065 | mcast_grp.s_addr = stream_get_ipv4(s); |
9daa5d47 | 3066 | stream_get(&svi_ifindex, s, sizeof(ifindex_t)); |
29c53922 MK |
3067 | } |
3068 | ||
d62a17ae | 3069 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
3070 | if (!bgp) | |
3071 | return 0; | |
3072 | ||
3073 | if (BGP_DEBUG(zebra, ZEBRA)) | |
9daa5d47 AD |
3074 | zlog_debug( |
3075 | "Rx VNI %s VRF %s VNI %u tenant-vrf %s SVI ifindex %u", | |
3076 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", | |
3077 | vrf_id_to_name(vrf_id), vni, | |
3078 | vrf_id_to_name(tenant_vrf_id), svi_ifindex); | |
d62a17ae | 3079 | |
a383bfc7 AK |
3080 | if (cmd == ZEBRA_VNI_ADD) { |
3081 | frrtrace(4, frr_bgp, evpn_local_vni_add_zrecv, vni, vtep_ip, | |
3082 | tenant_vrf_id, mcast_grp); | |
3083 | ||
d62a17ae | 3084 | return bgp_evpn_local_vni_add( |
975a328e DA |
3085 | bgp, vni, |
3086 | vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id, | |
9daa5d47 | 3087 | tenant_vrf_id, mcast_grp, svi_ifindex); |
a383bfc7 AK |
3088 | } else { |
3089 | frrtrace(1, frr_bgp, evpn_local_vni_del_zrecv, vni); | |
3090 | ||
d62a17ae | 3091 | return bgp_evpn_local_vni_del(bgp, vni); |
a383bfc7 | 3092 | } |
128ea8ab | 3093 | } |
3094 | ||
121f9dee | 3095 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 3096 | { |
d62a17ae | 3097 | struct stream *s; |
3098 | vni_t vni; | |
3099 | struct bgp *bgp; | |
3100 | struct ethaddr mac; | |
3101 | struct ipaddr ip; | |
3102 | int ipa_len; | |
f07e1c99 | 3103 | uint8_t flags = 0; |
3104 | uint32_t seqnum = 0; | |
ec0ab544 | 3105 | int state = 0; |
c44ab6f1 AK |
3106 | char buf2[ESI_STR_LEN]; |
3107 | esi_t esi; | |
d62a17ae | 3108 | |
3109 | memset(&ip, 0, sizeof(ip)); | |
3110 | s = zclient->ibuf; | |
3111 | vni = stream_getl(s); | |
28328ea9 | 3112 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 3113 | ipa_len = stream_getl(s); |
3114 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
3115 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 3116 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 3117 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 3118 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 3119 | ipa_len); |
d62a17ae | 3120 | return -1; |
3121 | } | |
3122 | ||
3123 | if (ipa_len) { | |
3124 | ip.ipa_type = | |
3125 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
3126 | stream_get(&ip.ip.addr, s, ipa_len); | |
3127 | } | |
121f9dee | 3128 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 3129 | flags = stream_getc(s); |
3130 | seqnum = stream_getl(s); | |
c44ab6f1 | 3131 | stream_get(&esi, s, sizeof(esi_t)); |
ec0ab544 AK |
3132 | } else { |
3133 | state = stream_getl(s); | |
35fb444b | 3134 | memset(&esi, 0, sizeof(esi_t)); |
f07e1c99 | 3135 | } |
d62a17ae | 3136 | |
3137 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
3138 | if (!bgp) | |
3139 | return 0; | |
3140 | ||
3141 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c0d72166 | 3142 | zlog_debug( |
2dd0dde7 | 3143 | "%u:Recv MACIP %s f 0x%x MAC %pEA IP %pIA VNI %u seq %u state %d ESI %s", |
c0d72166 DS |
3144 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags, |
3145 | &mac, &ip, vni, seqnum, state, | |
3146 | esi_to_str(&esi, buf2, sizeof(buf2))); | |
d62a17ae | 3147 | |
a383bfc7 AK |
3148 | if (cmd == ZEBRA_MACIP_ADD) { |
3149 | frrtrace(6, frr_bgp, evpn_local_macip_add_zrecv, vni, &mac, &ip, | |
3150 | flags, seqnum, &esi); | |
3151 | ||
f07e1c99 | 3152 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
c44ab6f1 | 3153 | flags, seqnum, &esi); |
a383bfc7 AK |
3154 | } else { |
3155 | frrtrace(4, frr_bgp, evpn_local_macip_del_zrecv, vni, &mac, &ip, | |
3156 | state); | |
3157 | ||
ec0ab544 | 3158 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
a383bfc7 | 3159 | } |
128ea8ab | 3160 | } |
6aeb9e78 | 3161 | |
a243d1db | 3162 | static int bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
3163 | { |
3164 | struct stream *s = NULL; | |
3165 | struct bgp *bgp_vrf = NULL; | |
3166 | struct prefix p; | |
31310b25 | 3167 | |
6006b807 | 3168 | memset(&p, 0, sizeof(p)); |
31310b25 MK |
3169 | s = zclient->ibuf; |
3170 | stream_get(&p, s, sizeof(struct prefix)); | |
3171 | ||
3172 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
3173 | if (!bgp_vrf) | |
a243d1db | 3174 | return 0; |
31310b25 MK |
3175 | |
3176 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2dbe669b | 3177 | zlog_debug("Recv prefix %pFX %s on vrf %s", &p, |
31310b25 MK |
3178 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", |
3179 | vrf_id_to_name(vrf_id)); | |
3180 | ||
3181 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
3182 | ||
3183 | if (p.family == AF_INET) | |
d90b788e A |
3184 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
3185 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 3186 | else |
d90b788e A |
3187 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
3188 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
3189 | |
3190 | } else { | |
3191 | if (p.family == AF_INET) | |
d90b788e A |
3192 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
3193 | SAFI_UNICAST); | |
31310b25 | 3194 | else |
d90b788e A |
3195 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
3196 | SAFI_UNICAST); | |
31310b25 | 3197 | } |
a243d1db | 3198 | return 0; |
31310b25 MK |
3199 | } |
3200 | ||
a243d1db | 3201 | static int bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
3202 | { |
3203 | struct stream *s = NULL; | |
3204 | uint8_t response_keep; | |
3205 | uint32_t first; | |
3206 | uint32_t last; | |
aec865e4 FR |
3207 | uint8_t proto; |
3208 | unsigned short instance; | |
955bfd98 PZ |
3209 | |
3210 | s = zclient->ibuf; | |
aec865e4 FR |
3211 | STREAM_GETC(s, proto); |
3212 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
3213 | STREAM_GETC(s, response_keep); |
3214 | STREAM_GETL(s, first); | |
3215 | STREAM_GETL(s, last); | |
3216 | ||
aec865e4 | 3217 | if (zclient->redist_default != proto) { |
e50f7cfd | 3218 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 3219 | proto); |
a243d1db | 3220 | return 0; |
aec865e4 FR |
3221 | } |
3222 | if (zclient->instance != instance) { | |
e50f7cfd | 3223 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 3224 | proto); |
a243d1db | 3225 | return 0; |
aec865e4 FR |
3226 | } |
3227 | ||
955bfd98 PZ |
3228 | if (first > last || |
3229 | first < MPLS_LABEL_UNRESERVED_MIN || | |
3230 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
3231 | ||
e50f7cfd | 3232 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 3233 | __func__, first, last); |
a243d1db | 3234 | return 0; |
955bfd98 PZ |
3235 | } |
3236 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3237 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
3238 | first, last, response_keep); | |
3239 | } | |
3240 | ||
e70e9f8e | 3241 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 | 3242 | |
a243d1db DL |
3243 | return 0; |
3244 | ||
955bfd98 | 3245 | stream_failure: /* for STREAM_GETX */ |
a243d1db | 3246 | return -1; |
955bfd98 PZ |
3247 | } |
3248 | ||
342213ea DS |
3249 | extern struct zebra_privs_t bgpd_privs; |
3250 | ||
138c5a74 DS |
3251 | static int bgp_ifp_create(struct interface *ifp) |
3252 | { | |
6030b8b4 | 3253 | struct bgp *bgp_default = bgp_get_default(); |
ef7bd2a3 DS |
3254 | struct bgp *bgp; |
3255 | ||
3256 | if (BGP_DEBUG(zebra, ZEBRA)) | |
096f7609 IR |
3257 | zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf->vrf_id, |
3258 | ifp->name); | |
ef7bd2a3 | 3259 | |
096f7609 | 3260 | bgp = ifp->vrf->info; |
ef7bd2a3 DS |
3261 | if (!bgp) |
3262 | return 0; | |
3263 | ||
3264 | bgp_mac_add_mac_entry(ifp); | |
3265 | ||
3266 | bgp_update_interface_nbrs(bgp, ifp, ifp); | |
0d020cd6 | 3267 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
6030b8b4 LS |
3268 | |
3269 | if (bgp_default && | |
3270 | (if_is_loopback_exact(ifp) || | |
3271 | (if_is_vrf(ifp) && ifp->vrf->vrf_id != VRF_DEFAULT))) { | |
3272 | vpn_leak_zebra_vrf_label_update(bgp, AFI_IP); | |
3273 | vpn_leak_zebra_vrf_label_update(bgp, AFI_IP6); | |
3274 | vpn_leak_zebra_vrf_sid_update(bgp, AFI_IP); | |
3275 | vpn_leak_zebra_vrf_sid_update(bgp, AFI_IP6); | |
3276 | vpn_leak_postchange_all(); | |
3277 | } | |
3278 | ||
138c5a74 DS |
3279 | return 0; |
3280 | } | |
3281 | ||
a243d1db | 3282 | static int bgp_zebra_process_srv6_locator_chunk(ZAPI_CALLBACK_ARGS) |
a0281b2e HS |
3283 | { |
3284 | struct stream *s = NULL; | |
7de4c885 HS |
3285 | struct bgp *bgp = bgp_get_default(); |
3286 | struct listnode *node; | |
1c21a234 NM |
3287 | struct srv6_locator_chunk *c; |
3288 | struct srv6_locator_chunk *chunk = srv6_locator_chunk_alloc(); | |
a0281b2e HS |
3289 | |
3290 | s = zclient->ibuf; | |
1c21a234 | 3291 | zapi_srv6_locator_chunk_decode(s, chunk); |
a0281b2e | 3292 | |
1c21a234 | 3293 | if (strcmp(bgp->srv6_locator_name, chunk->locator_name) != 0) { |
3a0220e4 | 3294 | zlog_err("%s: Locator name unmatch %s:%s", __func__, |
1c21a234 | 3295 | bgp->srv6_locator_name, chunk->locator_name); |
69467313 | 3296 | srv6_locator_chunk_free(&chunk); |
a243d1db | 3297 | return 0; |
a0281b2e HS |
3298 | } |
3299 | ||
a0281b2e | 3300 | for (ALL_LIST_ELEMENTS_RO(bgp->srv6_locator_chunks, node, c)) { |
1c21a234 | 3301 | if (!prefix_cmp(&c->prefix, &chunk->prefix)) { |
69467313 | 3302 | srv6_locator_chunk_free(&chunk); |
a243d1db | 3303 | return 0; |
1c21a234 | 3304 | } |
a0281b2e HS |
3305 | } |
3306 | ||
3307 | listnode_add(bgp->srv6_locator_chunks, chunk); | |
3308 | vpn_leak_postchange_all(); | |
a243d1db | 3309 | return 0; |
a0281b2e HS |
3310 | } |
3311 | ||
d79ff732 HS |
3312 | static int bgp_zebra_process_srv6_locator_add(ZAPI_CALLBACK_ARGS) |
3313 | { | |
3314 | struct srv6_locator loc = {}; | |
3315 | struct bgp *bgp = bgp_get_default(); | |
3316 | const char *loc_name = bgp->srv6_locator_name; | |
3317 | ||
3318 | if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0) | |
3319 | return -1; | |
3320 | ||
3321 | if (!bgp || !bgp->srv6_enabled) | |
3322 | return 0; | |
3323 | ||
3324 | if (bgp_zebra_srv6_manager_get_locator_chunk(loc_name) < 0) | |
3325 | return -1; | |
3326 | ||
3327 | return 0; | |
3328 | } | |
3329 | ||
3330 | static int bgp_zebra_process_srv6_locator_delete(ZAPI_CALLBACK_ARGS) | |
3331 | { | |
3332 | struct srv6_locator loc = {}; | |
3333 | struct bgp *bgp = bgp_get_default(); | |
3334 | struct listnode *node, *nnode; | |
bee2e7d0 | 3335 | struct srv6_locator_chunk *chunk, *tovpn_sid_locator; |
d79ff732 HS |
3336 | struct bgp_srv6_function *func; |
3337 | struct bgp *bgp_vrf; | |
bee2e7d0 | 3338 | struct in6_addr *tovpn_sid; |
d79ff732 HS |
3339 | struct prefix_ipv6 tmp_prefi; |
3340 | ||
3341 | if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0) | |
3342 | return -1; | |
3343 | ||
3344 | // refresh chunks | |
3345 | for (ALL_LIST_ELEMENTS(bgp->srv6_locator_chunks, node, nnode, chunk)) | |
3346 | if (prefix_match((struct prefix *)&loc.prefix, | |
03852f67 | 3347 | (struct prefix *)&chunk->prefix)) { |
d79ff732 | 3348 | listnode_delete(bgp->srv6_locator_chunks, chunk); |
69467313 | 3349 | srv6_locator_chunk_free(&chunk); |
03852f67 | 3350 | } |
d79ff732 HS |
3351 | |
3352 | // refresh functions | |
3353 | for (ALL_LIST_ELEMENTS(bgp->srv6_functions, node, nnode, func)) { | |
3354 | tmp_prefi.family = AF_INET6; | |
3355 | tmp_prefi.prefixlen = 128; | |
3356 | tmp_prefi.prefix = func->sid; | |
3357 | if (prefix_match((struct prefix *)&loc.prefix, | |
bda15542 | 3358 | (struct prefix *)&tmp_prefi)) { |
d79ff732 | 3359 | listnode_delete(bgp->srv6_functions, func); |
bda15542 CS |
3360 | XFREE(MTYPE_BGP_SRV6_FUNCTION, func); |
3361 | } | |
d79ff732 HS |
3362 | } |
3363 | ||
3364 | // refresh tovpn_sid | |
3365 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp_vrf)) { | |
3366 | if (bgp_vrf->inst_type != BGP_INSTANCE_TYPE_VRF) | |
3367 | continue; | |
3368 | ||
3369 | // refresh vpnv4 tovpn_sid | |
3370 | tovpn_sid = bgp_vrf->vpn_policy[AFI_IP].tovpn_sid; | |
3371 | if (tovpn_sid) { | |
3372 | tmp_prefi.family = AF_INET6; | |
3373 | tmp_prefi.prefixlen = 128; | |
3374 | tmp_prefi.prefix = *tovpn_sid; | |
3375 | if (prefix_match((struct prefix *)&loc.prefix, | |
3376 | (struct prefix *)&tmp_prefi)) | |
3377 | XFREE(MTYPE_BGP_SRV6_SID, | |
3378 | bgp_vrf->vpn_policy[AFI_IP].tovpn_sid); | |
3379 | } | |
3380 | ||
3381 | // refresh vpnv6 tovpn_sid | |
3382 | tovpn_sid = bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid; | |
3383 | if (tovpn_sid) { | |
3384 | tmp_prefi.family = AF_INET6; | |
3385 | tmp_prefi.prefixlen = 128; | |
3386 | tmp_prefi.prefix = *tovpn_sid; | |
3387 | if (prefix_match((struct prefix *)&loc.prefix, | |
3388 | (struct prefix *)&tmp_prefi)) | |
3389 | XFREE(MTYPE_BGP_SRV6_SID, | |
3390 | bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid); | |
3391 | } | |
527588aa CS |
3392 | |
3393 | /* refresh per-vrf tovpn_sid */ | |
3394 | tovpn_sid = bgp_vrf->tovpn_sid; | |
3395 | if (tovpn_sid) { | |
3396 | tmp_prefi.family = AF_INET6; | |
3397 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
3398 | tmp_prefi.prefix = *tovpn_sid; | |
3399 | if (prefix_match((struct prefix *)&loc.prefix, | |
3400 | (struct prefix *)&tmp_prefi)) | |
3401 | XFREE(MTYPE_BGP_SRV6_SID, bgp_vrf->tovpn_sid); | |
3402 | } | |
d79ff732 HS |
3403 | } |
3404 | ||
3405 | vpn_leak_postchange_all(); | |
f8e9c702 CS |
3406 | |
3407 | /* refresh tovpn_sid_locator */ | |
3408 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp_vrf)) { | |
3409 | if (bgp_vrf->inst_type != BGP_INSTANCE_TYPE_VRF) | |
3410 | continue; | |
3411 | ||
3412 | /* refresh vpnv4 tovpn_sid_locator */ | |
3413 | tovpn_sid_locator = | |
3414 | bgp_vrf->vpn_policy[AFI_IP].tovpn_sid_locator; | |
3415 | if (tovpn_sid_locator) { | |
3416 | tmp_prefi.family = AF_INET6; | |
3417 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
bee2e7d0 | 3418 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; |
f8e9c702 | 3419 | if (prefix_match((struct prefix *)&loc.prefix, |
a1d5e05f | 3420 | (struct prefix *)&tmp_prefi)) |
69467313 CS |
3421 | srv6_locator_chunk_free( |
3422 | &bgp_vrf->vpn_policy[AFI_IP] | |
3423 | .tovpn_sid_locator); | |
f8e9c702 CS |
3424 | } |
3425 | ||
3426 | /* refresh vpnv6 tovpn_sid_locator */ | |
3427 | tovpn_sid_locator = | |
3428 | bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid_locator; | |
3429 | if (tovpn_sid_locator) { | |
3430 | tmp_prefi.family = AF_INET6; | |
3431 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
bee2e7d0 | 3432 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; |
f8e9c702 | 3433 | if (prefix_match((struct prefix *)&loc.prefix, |
a1d5e05f | 3434 | (struct prefix *)&tmp_prefi)) |
69467313 CS |
3435 | srv6_locator_chunk_free( |
3436 | &bgp_vrf->vpn_policy[AFI_IP6] | |
3437 | .tovpn_sid_locator); | |
f8e9c702 | 3438 | } |
527588aa CS |
3439 | |
3440 | /* refresh per-vrf tovpn_sid_locator */ | |
3441 | tovpn_sid_locator = bgp_vrf->tovpn_sid_locator; | |
3442 | if (tovpn_sid_locator) { | |
3443 | tmp_prefi.family = AF_INET6; | |
3444 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
3445 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; | |
3446 | if (prefix_match((struct prefix *)&loc.prefix, | |
3447 | (struct prefix *)&tmp_prefi)) | |
69467313 CS |
3448 | srv6_locator_chunk_free( |
3449 | &bgp_vrf->tovpn_sid_locator); | |
527588aa | 3450 | } |
f8e9c702 CS |
3451 | } |
3452 | ||
d79ff732 HS |
3453 | return 0; |
3454 | } | |
3455 | ||
a243d1db DL |
3456 | static zclient_handler *const bgp_handlers[] = { |
3457 | [ZEBRA_ROUTER_ID_UPDATE] = bgp_router_id_update, | |
3458 | [ZEBRA_INTERFACE_ADDRESS_ADD] = bgp_interface_address_add, | |
3459 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = bgp_interface_address_delete, | |
3460 | [ZEBRA_INTERFACE_NBR_ADDRESS_ADD] = bgp_interface_nbr_address_add, | |
3461 | [ZEBRA_INTERFACE_NBR_ADDRESS_DELETE] = bgp_interface_nbr_address_delete, | |
3462 | [ZEBRA_INTERFACE_VRF_UPDATE] = bgp_interface_vrf_update, | |
3463 | [ZEBRA_REDISTRIBUTE_ROUTE_ADD] = zebra_read_route, | |
3464 | [ZEBRA_REDISTRIBUTE_ROUTE_DEL] = zebra_read_route, | |
3465 | [ZEBRA_NEXTHOP_UPDATE] = bgp_read_nexthop_update, | |
3466 | [ZEBRA_FEC_UPDATE] = bgp_read_fec_update, | |
3467 | [ZEBRA_LOCAL_ES_ADD] = bgp_zebra_process_local_es_add, | |
3468 | [ZEBRA_LOCAL_ES_DEL] = bgp_zebra_process_local_es_del, | |
3469 | [ZEBRA_VNI_ADD] = bgp_zebra_process_local_vni, | |
3470 | [ZEBRA_LOCAL_ES_EVI_ADD] = bgp_zebra_process_local_es_evi, | |
3471 | [ZEBRA_LOCAL_ES_EVI_DEL] = bgp_zebra_process_local_es_evi, | |
3472 | [ZEBRA_VNI_DEL] = bgp_zebra_process_local_vni, | |
3473 | [ZEBRA_MACIP_ADD] = bgp_zebra_process_local_macip, | |
3474 | [ZEBRA_MACIP_DEL] = bgp_zebra_process_local_macip, | |
3475 | [ZEBRA_L3VNI_ADD] = bgp_zebra_process_local_l3vni, | |
3476 | [ZEBRA_L3VNI_DEL] = bgp_zebra_process_local_l3vni, | |
3477 | [ZEBRA_IP_PREFIX_ROUTE_ADD] = bgp_zebra_process_local_ip_prefix, | |
3478 | [ZEBRA_IP_PREFIX_ROUTE_DEL] = bgp_zebra_process_local_ip_prefix, | |
3479 | [ZEBRA_GET_LABEL_CHUNK] = bgp_zebra_process_label_chunk, | |
3480 | [ZEBRA_RULE_NOTIFY_OWNER] = rule_notify_owner, | |
3481 | [ZEBRA_IPSET_NOTIFY_OWNER] = ipset_notify_owner, | |
3482 | [ZEBRA_IPSET_ENTRY_NOTIFY_OWNER] = ipset_entry_notify_owner, | |
3483 | [ZEBRA_IPTABLE_NOTIFY_OWNER] = iptable_notify_owner, | |
3484 | [ZEBRA_ROUTE_NOTIFY_OWNER] = bgp_zebra_route_notify_owner, | |
3485 | [ZEBRA_SRV6_LOCATOR_ADD] = bgp_zebra_process_srv6_locator_add, | |
3486 | [ZEBRA_SRV6_LOCATOR_DELETE] = bgp_zebra_process_srv6_locator_delete, | |
3487 | [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK] = | |
3488 | bgp_zebra_process_srv6_locator_chunk, | |
70cd87ca | 3489 | [ZEBRA_OPAQUE_MESSAGE] = bgp_opaque_msg_handler, |
a243d1db DL |
3490 | }; |
3491 | ||
4cd690ae PG |
3492 | static int bgp_if_new_hook(struct interface *ifp) |
3493 | { | |
3494 | struct bgp_interface *iifp; | |
3495 | ||
3496 | if (ifp->info) | |
3497 | return 0; | |
3498 | iifp = XCALLOC(MTYPE_BGP_IF_INFO, sizeof(struct bgp_interface)); | |
3499 | ifp->info = iifp; | |
3500 | ||
3501 | return 0; | |
3502 | } | |
3503 | ||
3504 | static int bgp_if_delete_hook(struct interface *ifp) | |
3505 | { | |
3506 | XFREE(MTYPE_BGP_IF_INFO, ifp->info); | |
3507 | return 0; | |
3508 | } | |
3509 | ||
3510 | void bgp_if_init(void) | |
3511 | { | |
3512 | /* Initialize Zebra interface data structure. */ | |
3513 | hook_register_prio(if_add, 0, bgp_if_new_hook); | |
3514 | hook_register_prio(if_del, 0, bgp_if_delete_hook); | |
3515 | } | |
3516 | ||
f533be73 | 3517 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 3518 | { |
d62a17ae | 3519 | zclient_num_connects = 0; |
3520 | ||
138c5a74 DS |
3521 | if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up, |
3522 | bgp_ifp_down, bgp_ifp_destroy); | |
3523 | ||
d62a17ae | 3524 | /* Set default values. */ |
a243d1db DL |
3525 | zclient = zclient_new(master, &zclient_options_default, bgp_handlers, |
3526 | array_size(bgp_handlers)); | |
342213ea | 3527 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 3528 | zclient->zebra_connected = bgp_zebra_connected; |
f533be73 | 3529 | zclient->instance = instance; |
718e3744 | 3530 | } |
bb86c601 | 3531 | |
d62a17ae | 3532 | void bgp_zebra_destroy(void) |
bb86c601 | 3533 | { |
d62a17ae | 3534 | if (zclient == NULL) |
3535 | return; | |
3536 | zclient_stop(zclient); | |
3537 | zclient_free(zclient); | |
3538 | zclient = NULL; | |
bb86c601 | 3539 | } |
afbb1c59 | 3540 | |
d62a17ae | 3541 | int bgp_zebra_num_connects(void) |
afbb1c59 | 3542 | { |
d62a17ae | 3543 | return zclient_num_connects; |
afbb1c59 | 3544 | } |
30d50e6d | 3545 | |
6cfe5d15 PG |
3546 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
3547 | struct bgp_pbr_rule *pbr, | |
3548 | bool install) | |
30d50e6d PG |
3549 | { |
3550 | struct stream *s; | |
3551 | ||
6cfe5d15 | 3552 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 3553 | return; |
6cfe5d15 PG |
3554 | if (pbr && pbr->install_in_progress) |
3555 | return; | |
3556 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3557 | if (pbr) | |
15569c58 | 3558 | zlog_debug("%s: table %d (ip rule) %d", __func__, |
6cfe5d15 PG |
3559 | pbra->table_id, install); |
3560 | else | |
15569c58 | 3561 | zlog_debug("%s: table %d fwmark %d %d", __func__, |
6cfe5d15 PG |
3562 | pbra->table_id, pbra->fwmark, install); |
3563 | } | |
30d50e6d PG |
3564 | s = zclient->obuf; |
3565 | stream_reset(s); | |
3566 | ||
3567 | zclient_create_header(s, | |
3568 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
3569 | VRF_DEFAULT); | |
3570 | stream_putl(s, 1); /* send one pbr action */ | |
3571 | ||
6cfe5d15 | 3572 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
3573 | |
3574 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e DS |
3575 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) |
3576 | && install) { | |
6cfe5d15 PG |
3577 | if (!pbr) |
3578 | pbra->install_in_progress = true; | |
3579 | else | |
3580 | pbr->install_in_progress = true; | |
3581 | } | |
30d50e6d PG |
3582 | } |
3583 | ||
3584 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
3585 | { | |
3586 | struct stream *s; | |
3587 | ||
3588 | if (pbrim->install_in_progress) | |
3589 | return; | |
f0936054 | 3590 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3591 | zlog_debug("%s: name %s type %d %d, ID %u", __func__, |
3592 | pbrim->ipset_name, pbrim->type, install, | |
3593 | pbrim->unique); | |
30d50e6d PG |
3594 | s = zclient->obuf; |
3595 | stream_reset(s); | |
3596 | ||
3597 | zclient_create_header(s, | |
3598 | install ? ZEBRA_IPSET_CREATE : | |
3599 | ZEBRA_IPSET_DESTROY, | |
3600 | VRF_DEFAULT); | |
3601 | ||
3602 | stream_putl(s, 1); /* send one pbr action */ | |
3603 | ||
3604 | bgp_encode_pbr_ipset_match(s, pbrim); | |
3605 | ||
3606 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3607 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3608 | pbrim->install_in_progress = true; |
3609 | } | |
3610 | ||
3611 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
3612 | bool install) | |
3613 | { | |
3614 | struct stream *s; | |
3615 | ||
3616 | if (pbrime->install_in_progress) | |
3617 | return; | |
f0936054 | 3618 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3619 | zlog_debug("%s: name %s %d %d, ID %u", __func__, |
3620 | pbrime->backpointer->ipset_name, pbrime->unique, | |
3621 | install, pbrime->unique); | |
30d50e6d PG |
3622 | s = zclient->obuf; |
3623 | stream_reset(s); | |
3624 | ||
3625 | zclient_create_header(s, | |
3626 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
3627 | ZEBRA_IPSET_ENTRY_DELETE, | |
3628 | VRF_DEFAULT); | |
3629 | ||
3630 | stream_putl(s, 1); /* send one pbr action */ | |
3631 | ||
3632 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
3633 | ||
3634 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3635 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3636 | pbrime->install_in_progress = true; |
3637 | } | |
c16a0a62 | 3638 | |
8f242187 PG |
3639 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s, |
3640 | uint8_t family) | |
4762c213 PG |
3641 | { |
3642 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3643 | struct bgp_pbr_interface_head *head; | |
3644 | struct bgp_pbr_interface *pbr_if; | |
3645 | struct interface *ifp; | |
3646 | ||
3647 | if (!bgp_pbr_cfg) | |
3648 | return; | |
8f242187 PG |
3649 | if (family == AF_INET) |
3650 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3651 | else | |
3652 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3653 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3654 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); |
4762c213 PG |
3655 | if (ifp) |
3656 | stream_putl(s, ifp->ifindex); | |
3657 | } | |
3658 | } | |
3659 | ||
8f242187 | 3660 | static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family) |
4762c213 PG |
3661 | { |
3662 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3663 | struct bgp_pbr_interface_head *head; | |
3664 | struct bgp_pbr_interface *pbr_if; | |
3665 | int cnt = 0; | |
3666 | ||
3667 | if (!bgp_pbr_cfg) | |
3668 | return 0; | |
8f242187 PG |
3669 | if (family == AF_INET) |
3670 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3671 | else | |
3672 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3673 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3674 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) |
4762c213 PG |
3675 | cnt++; |
3676 | } | |
3677 | return cnt; | |
3678 | } | |
3679 | ||
c16a0a62 PG |
3680 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
3681 | struct bgp_pbr_match *pbm, | |
3682 | bool install) | |
3683 | { | |
3684 | struct stream *s; | |
b5c40105 | 3685 | int ret = 0; |
4762c213 | 3686 | int nb_interface; |
c16a0a62 PG |
3687 | |
3688 | if (pbm->install_iptable_in_progress) | |
3689 | return; | |
f0936054 | 3690 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3691 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__, |
3692 | pbm->ipset_name, pbm->type, pba->fwmark, install, | |
88055124 | 3693 | pbm->unique2); |
c16a0a62 PG |
3694 | s = zclient->obuf; |
3695 | stream_reset(s); | |
3696 | ||
3697 | zclient_create_header(s, | |
3698 | install ? ZEBRA_IPTABLE_ADD : | |
3699 | ZEBRA_IPTABLE_DELETE, | |
3700 | VRF_DEFAULT); | |
3701 | ||
3702 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
8f242187 | 3703 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family); |
4762c213 PG |
3704 | stream_putl(s, nb_interface); |
3705 | if (nb_interface) | |
8f242187 | 3706 | bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family); |
c16a0a62 | 3707 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
3708 | ret = zclient_send_message(zclient); |
3709 | if (install) { | |
8a3f8f2e | 3710 | if (ret != ZCLIENT_SEND_FAILURE) |
b5c40105 PG |
3711 | pba->refcnt++; |
3712 | else | |
3713 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 3714 | } |
c16a0a62 | 3715 | } |
f7df1907 PG |
3716 | |
3717 | /* inject in table <table_id> a default route to: | |
3718 | * - if nexthop IP is present : to this nexthop | |
3719 | * - if vrf is different from local : to the matching VRF | |
3720 | */ | |
3721 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
3722 | afi_t afi, uint32_t table_id, bool announce) | |
3723 | { | |
3724 | struct zapi_nexthop *api_nh; | |
3725 | struct zapi_route api; | |
3726 | struct prefix p; | |
3727 | ||
f01e580f PG |
3728 | if (!nh || (nh->type != NEXTHOP_TYPE_IPV4 |
3729 | && nh->type != NEXTHOP_TYPE_IPV6) | |
f7df1907 PG |
3730 | || nh->vrf_id == VRF_UNKNOWN) |
3731 | return; | |
7afeaffa PG |
3732 | |
3733 | /* in vrf-lite, no default route has to be announced | |
3734 | * the table id of vrf is directly used to divert traffic | |
3735 | */ | |
3736 | if (!vrf_is_backend_netns() && bgp->vrf_id != nh->vrf_id) | |
3737 | return; | |
3738 | ||
6006b807 | 3739 | memset(&p, 0, sizeof(p)); |
f01e580f | 3740 | if (afi != AFI_IP && afi != AFI_IP6) |
f7df1907 | 3741 | return; |
f01e580f | 3742 | p.family = afi2family(afi); |
f7df1907 PG |
3743 | memset(&api, 0, sizeof(api)); |
3744 | api.vrf_id = bgp->vrf_id; | |
3745 | api.type = ZEBRA_ROUTE_BGP; | |
3746 | api.safi = SAFI_UNICAST; | |
3747 | api.prefix = p; | |
3748 | api.tableid = table_id; | |
3749 | api.nexthop_num = 1; | |
3750 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
3751 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
3752 | api_nh = &api.nexthops[0]; | |
3753 | ||
38a8c751 DS |
3754 | api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT; |
3755 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
3756 | ||
f7df1907 | 3757 | /* redirect IP */ |
f01e580f | 3758 | if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) { |
f7df1907 PG |
3759 | api_nh->vrf_id = nh->vrf_id; |
3760 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
3761 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
3762 | ||
f7df1907 | 3763 | if (BGP_DEBUG(zebra, ZEBRA)) |
07380148 DA |
3764 | zlog_debug( |
3765 | "BGP: %s default route to %pI4 table %d (redirect IP)", | |
3766 | announce ? "adding" : "withdrawing", | |
3767 | &nh->gate.ipv4, table_id); | |
3768 | ||
f01e580f PG |
3769 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD |
3770 | : ZEBRA_ROUTE_DELETE, | |
3771 | zclient, &api); | |
3772 | } else if (afi == AFI_IP6 && | |
3773 | memcmp(&nh->gate.ipv6, | |
3774 | &in6addr_any, sizeof(struct in6_addr))) { | |
f01e580f PG |
3775 | api_nh->vrf_id = nh->vrf_id; |
3776 | memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, | |
3777 | sizeof(struct in6_addr)); | |
3778 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
3779 | ||
f01e580f | 3780 | if (BGP_DEBUG(zebra, ZEBRA)) |
07380148 DA |
3781 | zlog_debug( |
3782 | "BGP: %s default route to %pI6 table %d (redirect IP)", | |
3783 | announce ? "adding" : "withdrawing", | |
3784 | &nh->gate.ipv6, table_id); | |
3785 | ||
f7df1907 PG |
3786 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD |
3787 | : ZEBRA_ROUTE_DELETE, | |
3788 | zclient, &api); | |
3789 | } else if (nh->vrf_id != bgp->vrf_id) { | |
3790 | struct vrf *vrf; | |
eb4244f8 | 3791 | struct interface *ifp; |
f7df1907 | 3792 | |
eb4244f8 | 3793 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
3794 | if (!vrf) |
3795 | return; | |
eb4244f8 PG |
3796 | /* create default route with interface <VRF> |
3797 | * with nexthop-vrf <VRF> | |
f7df1907 | 3798 | */ |
de4f1a66 | 3799 | ifp = if_lookup_by_name_vrf(vrf->name, vrf); |
eb4244f8 PG |
3800 | if (!ifp) |
3801 | return; | |
3802 | api_nh->vrf_id = nh->vrf_id; | |
3803 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
3804 | api_nh->ifindex = ifp->ifindex; | |
3805 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3806 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
3807 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
3808 | vrf->name, table_id); |
3809 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3810 | : ZEBRA_ROUTE_DELETE, | |
3811 | zclient, &api); | |
f7df1907 PG |
3812 | return; |
3813 | } | |
3814 | } | |
85ef4179 | 3815 | |
3816 | /* Send capabilities to RIB */ | |
3817 | int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable) | |
3818 | { | |
3819 | struct zapi_cap api; | |
3820 | int ret = BGP_GR_SUCCESS; | |
3821 | ||
3822 | if (zclient == NULL) { | |
3823 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3824 | zlog_debug("zclient invalid"); | |
3825 | return BGP_GR_FAILURE; | |
3826 | } | |
3827 | ||
3828 | /* Check if the client is connected */ | |
3829 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3830 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3831 | zlog_debug("client not connected"); | |
3832 | return BGP_GR_FAILURE; | |
3833 | } | |
3834 | ||
3835 | /* Check if capability is already sent. If the flag force is set | |
3836 | * send the capability since this can be initial bgp configuration | |
3837 | */ | |
6006b807 | 3838 | memset(&api, 0, sizeof(api)); |
85ef4179 | 3839 | if (disable) { |
3840 | api.cap = ZEBRA_CLIENT_GR_DISABLE; | |
3841 | api.vrf_id = bgp->vrf_id; | |
3842 | } else { | |
3843 | api.cap = ZEBRA_CLIENT_GR_CAPABILITIES; | |
3844 | api.stale_removal_time = bgp->rib_stale_time; | |
3845 | api.vrf_id = bgp->vrf_id; | |
3846 | } | |
3847 | ||
36235319 | 3848 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3849 | == ZCLIENT_SEND_FAILURE) { |
2ba1fe69 | 3850 | zlog_err("error sending capability"); |
85ef4179 | 3851 | ret = BGP_GR_FAILURE; |
3852 | } else { | |
3853 | if (disable) | |
3854 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; | |
3855 | else | |
3856 | bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE; | |
3857 | ||
3858 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3859 | zlog_debug("send capabilty success"); | |
3860 | ret = BGP_GR_SUCCESS; | |
3861 | } | |
3862 | return ret; | |
3863 | } | |
3864 | ||
3865 | /* Send route update pesding or completed status to RIB for the | |
3866 | * specific AFI, SAFI | |
3867 | */ | |
3868 | int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type) | |
3869 | { | |
2ba1fe69 | 3870 | struct zapi_cap api = {0}; |
85ef4179 | 3871 | |
3872 | if (zclient == NULL) { | |
3873 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2ba1fe69 | 3874 | zlog_debug("zclient == NULL, invalid"); |
85ef4179 | 3875 | return BGP_GR_FAILURE; |
3876 | } | |
3877 | ||
3878 | /* Check if the client is connected */ | |
3879 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3880 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3881 | zlog_debug("client not connected"); | |
3882 | return BGP_GR_FAILURE; | |
3883 | } | |
3884 | ||
85ef4179 | 3885 | api.afi = afi; |
3886 | api.safi = safi; | |
3887 | api.vrf_id = vrf_id; | |
3888 | api.cap = type; | |
3889 | ||
36235319 | 3890 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3891 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3892 | if (BGP_DEBUG(zebra, ZEBRA)) |
3893 | zlog_debug("error sending capability"); | |
3894 | return BGP_GR_FAILURE; | |
3895 | } | |
3896 | return BGP_GR_SUCCESS; | |
3897 | } | |
3898 | ||
3899 | ||
85ef4179 | 3900 | /* Send RIB stale timer update */ |
3901 | int bgp_zebra_stale_timer_update(struct bgp *bgp) | |
3902 | { | |
3903 | struct zapi_cap api; | |
3904 | ||
3905 | if (zclient == NULL) { | |
3906 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3907 | zlog_debug("zclient invalid"); | |
3908 | return BGP_GR_FAILURE; | |
3909 | } | |
3910 | ||
3911 | /* Check if the client is connected */ | |
3912 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3913 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3914 | zlog_debug("client not connected"); | |
3915 | return BGP_GR_FAILURE; | |
3916 | } | |
3917 | ||
6006b807 | 3918 | memset(&api, 0, sizeof(api)); |
85ef4179 | 3919 | api.cap = ZEBRA_CLIENT_RIB_STALE_TIME; |
3920 | api.stale_removal_time = bgp->rib_stale_time; | |
3921 | api.vrf_id = bgp->vrf_id; | |
36235319 | 3922 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3923 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3924 | if (BGP_DEBUG(zebra, ZEBRA)) |
3925 | zlog_debug("error sending capability"); | |
3926 | return BGP_GR_FAILURE; | |
3927 | } | |
3928 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3929 | zlog_debug("send capabilty success"); | |
3930 | return BGP_GR_SUCCESS; | |
3931 | } | |
a0281b2e HS |
3932 | |
3933 | int bgp_zebra_srv6_manager_get_locator_chunk(const char *name) | |
3934 | { | |
3935 | return srv6_manager_get_locator_chunk(zclient, name); | |
3936 | } | |
0249b8b6 HS |
3937 | |
3938 | int bgp_zebra_srv6_manager_release_locator_chunk(const char *name) | |
3939 | { | |
3940 | return srv6_manager_release_locator_chunk(zclient, name); | |
3941 | } | |
70cd87ca MK |
3942 | |
3943 | /* | |
3944 | * ORR messages between processes | |
3945 | */ | |
3946 | static int bgp_opaque_msg_handler(ZAPI_CALLBACK_ARGS) | |
3947 | { | |
3948 | struct stream *s; | |
3949 | struct zapi_opaque_msg info; | |
3950 | struct orr_igp_metric_info table; | |
3951 | int ret = 0; | |
3952 | ||
3953 | s = zclient->ibuf; | |
3954 | ||
3955 | if (zclient_opaque_decode(s, &info) != 0) { | |
3956 | bgp_orr_debug("%s: opaque decode failed", __func__); | |
3957 | return -1; | |
3958 | } | |
3959 | ||
3960 | switch (info.type) { | |
3961 | case ORR_IGP_METRIC_UPDATE: | |
3962 | STREAM_GET(&table, s, sizeof(table)); | |
3963 | ret = bgg_orr_message_process(BGP_ORR_IMSG_IGP_METRIC_UPDATE, | |
3964 | (void *)&table); | |
3965 | break; | |
3966 | default: | |
3967 | break; | |
3968 | } | |
3969 | ||
3970 | stream_failure: | |
3971 | return ret; | |
3972 | } |