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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
718e3744 | 2 | /* zebra client |
896014f4 | 3 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro |
896014f4 | 4 | */ |
718e3744 | 5 | |
6 | #include <zebra.h> | |
7 | ||
8 | #include "command.h" | |
9 | #include "stream.h" | |
10 | #include "network.h" | |
11 | #include "prefix.h" | |
12 | #include "log.h" | |
13 | #include "sockunion.h" | |
14 | #include "zclient.h" | |
15 | #include "routemap.h" | |
16 | #include "thread.h" | |
3f9c7369 | 17 | #include "queue.h" |
6e919709 | 18 | #include "memory.h" |
856ca177 | 19 | #include "lib/json.h" |
2376c3f2 | 20 | #include "lib/bfd.h" |
94effaf0 | 21 | #include "lib/route_opaque.h" |
039f3a34 | 22 | #include "filter.h" |
cd1964ff | 23 | #include "mpls.h" |
128ea8ab | 24 | #include "vxlan.h" |
6cfe5d15 | 25 | #include "pbr.h" |
718e3744 | 26 | |
27 | #include "bgpd/bgpd.h" | |
28 | #include "bgpd/bgp_route.h" | |
29 | #include "bgpd/bgp_attr.h" | |
e46723a5 | 30 | #include "bgpd/bgp_aspath.h" |
718e3744 | 31 | #include "bgpd/bgp_nexthop.h" |
32 | #include "bgpd/bgp_zebra.h" | |
33 | #include "bgpd/bgp_fsm.h" | |
a39275d7 | 34 | #include "bgpd/bgp_debug.h" |
14454c9f | 35 | #include "bgpd/bgp_errors.h" |
8196f13d | 36 | #include "bgpd/bgp_mpath.h" |
fb018d25 | 37 | #include "bgpd/bgp_nexthop.h" |
ffd0c037 | 38 | #include "bgpd/bgp_nht.h" |
8c4f6381 | 39 | #include "bgpd/bgp_bfd.h" |
cd1964ff | 40 | #include "bgpd/bgp_label.h" |
49e5a4a0 | 41 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 42 | #include "bgpd/rfapi/rfapi_backend.h" |
43 | #include "bgpd/rfapi/vnc_export_bgp.h" | |
65efcfce | 44 | #endif |
128ea8ab | 45 | #include "bgpd/bgp_evpn.h" |
ddb5b488 | 46 | #include "bgpd/bgp_mplsvpn.h" |
955bfd98 | 47 | #include "bgpd/bgp_labelpool.h" |
30d50e6d | 48 | #include "bgpd/bgp_pbr.h" |
0b9d9cd0 | 49 | #include "bgpd/bgp_evpn_private.h" |
c44ab6f1 | 50 | #include "bgpd/bgp_evpn_mh.h" |
6a69ac51 | 51 | #include "bgpd/bgp_mac.h" |
a383bfc7 | 52 | #include "bgpd/bgp_trace.h" |
959331a3 RW |
53 | #include "bgpd/bgp_community.h" |
54 | #include "bgpd/bgp_lcommunity.h" | |
6b0655a2 | 55 | |
718e3744 | 56 | /* All information about zebra. */ |
228da428 | 57 | struct zclient *zclient = NULL; |
718e3744 | 58 | |
0d020cd6 PR |
59 | /* hook to indicate vrf status change for SNMP */ |
60 | DEFINE_HOOK(bgp_vrf_status_changed, (struct bgp *bgp, struct interface *ifp), | |
8451921b | 61 | (bgp, ifp)); |
0d020cd6 | 62 | |
4cd690ae PG |
63 | DEFINE_MTYPE_STATIC(BGPD, BGP_IF_INFO, "BGP interface context"); |
64 | ||
ad4cbda1 | 65 | /* Can we install into zebra? */ |
3dc339cd | 66 | static inline bool bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 67 | { |
d62a17ae | 68 | if (zclient->sock <= 0) |
3dc339cd | 69 | return false; |
ad4cbda1 | 70 | |
bb4ef1ae | 71 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
15569c58 DA |
72 | zlog_debug( |
73 | "%s: No zebra instance to talk to, not installing information", | |
74 | __func__); | |
3dc339cd | 75 | return false; |
bb4ef1ae | 76 | } |
ad4cbda1 | 77 | |
3dc339cd | 78 | return true; |
ad4cbda1 | 79 | } |
80 | ||
afbb1c59 LB |
81 | int zclient_num_connects; |
82 | ||
18a6dce6 | 83 | /* Router-id update message from zebra. */ |
121f9dee | 84 | static int bgp_router_id_update(ZAPI_CALLBACK_ARGS) |
718e3744 | 85 | { |
d62a17ae | 86 | struct prefix router_id; |
718e3744 | 87 | |
d62a17ae | 88 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 89 | |
2dbe669b DA |
90 | if (BGP_DEBUG(zebra, ZEBRA)) |
91 | zlog_debug("Rx Router Id update VRF %u Id %pFX", vrf_id, | |
92 | &router_id); | |
a39275d7 | 93 | |
d62a17ae | 94 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
95 | return 0; | |
718e3744 | 96 | } |
97 | ||
fb018d25 | 98 | /* Nexthop update message from zebra. */ |
121f9dee | 99 | static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS) |
fb018d25 | 100 | { |
121f9dee | 101 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 102 | return 0; |
078430f6 DS |
103 | } |
104 | ||
4a04e5f7 | 105 | /* Set or clear interface on which unnumbered neighbor is configured. This |
106 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
107 | * interface. | |
108 | */ | |
d62a17ae | 109 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
110 | struct interface *upd_ifp) | |
4a04e5f7 | 111 | { |
d62a17ae | 112 | struct listnode *node, *nnode; |
113 | struct peer *peer; | |
114 | ||
115 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
116 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
117 | if (upd_ifp) { | |
118 | peer->ifp = upd_ifp; | |
119 | bgp_zebra_initiate_radv(bgp, peer); | |
120 | } else { | |
121 | bgp_zebra_terminate_radv(bgp, peer); | |
122 | peer->ifp = upd_ifp; | |
123 | } | |
124 | } | |
125 | } | |
4a04e5f7 | 126 | } |
127 | ||
a243d1db | 128 | static int bgp_read_fec_update(ZAPI_CALLBACK_ARGS) |
cd1964ff | 129 | { |
d62a17ae | 130 | bgp_parse_fec_update(); |
131 | return 0; | |
cd1964ff DS |
132 | } |
133 | ||
d62a17ae | 134 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 135 | { |
d62a17ae | 136 | struct listnode *node, *nnode; |
137 | struct peer *peer; | |
138 | ||
139 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
140 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
feb17238 | 141 | && !peer_established(peer)) { |
d62a17ae | 142 | if (peer_active(peer)) |
143 | BGP_EVENT_ADD(peer, BGP_Stop); | |
144 | BGP_EVENT_ADD(peer, BGP_Start); | |
145 | } | |
146 | } | |
a80beece DS |
147 | } |
148 | ||
d62a17ae | 149 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 150 | { |
d62a17ae | 151 | struct listnode *node; |
152 | struct connected *connected; | |
153 | struct interface *ifp; | |
154 | struct prefix *p; | |
155 | ||
156 | /* Kick-off the FSM for any relevant peers only if there is a | |
157 | * valid local address on the interface. | |
158 | */ | |
159 | ifp = ifc->ifp; | |
160 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
161 | p = connected->address; | |
162 | if (p->family == AF_INET6 | |
163 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
164 | break; | |
165 | } | |
166 | if (!connected) | |
167 | return; | |
168 | ||
169 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
170 | } |
171 | ||
d62a17ae | 172 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
173 | int del) | |
a80beece | 174 | { |
d62a17ae | 175 | struct listnode *node, *nnode; |
176 | struct peer *peer; | |
177 | struct interface *ifp; | |
178 | ||
179 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
180 | if (peer->conf_if | |
181 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
182 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
183 | BGP_EVENT_ADD(peer, BGP_Stop); | |
184 | } | |
185 | } | |
186 | /* Free neighbor also, if we're asked to. */ | |
187 | if (del) { | |
188 | ifp = ifc->ifp; | |
189 | listnode_delete(ifp->nbr_connected, ifc); | |
190 | nbr_connected_free(ifc); | |
191 | } | |
a80beece DS |
192 | } |
193 | ||
3c3c3252 | 194 | static int bgp_ifp_destroy(struct interface *ifp) |
718e3744 | 195 | { |
d62a17ae | 196 | struct bgp *bgp; |
718e3744 | 197 | |
096f7609 | 198 | bgp = ifp->vrf->info; |
a4499b83 | 199 | |
d62a17ae | 200 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
201 | zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf->vrf_id, |
202 | ifp->name); | |
a39275d7 | 203 | |
0d020cd6 | 204 | if (bgp) { |
85751d1d | 205 | bgp_update_interface_nbrs(bgp, ifp, NULL); |
0d020cd6 PR |
206 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
207 | } | |
64745052 | 208 | |
6a69ac51 DS |
209 | bgp_mac_del_mac_entry(ifp); |
210 | ||
d62a17ae | 211 | return 0; |
718e3744 | 212 | } |
213 | ||
ddbf3e60 | 214 | static int bgp_ifp_up(struct interface *ifp) |
718e3744 | 215 | { |
d62a17ae | 216 | struct connected *c; |
217 | struct nbr_connected *nc; | |
218 | struct listnode *node, *nnode; | |
219 | struct bgp *bgp; | |
6aeb9e78 | 220 | |
096f7609 | 221 | bgp = ifp->vrf->info; |
718e3744 | 222 | |
6a69ac51 DS |
223 | bgp_mac_add_mac_entry(ifp); |
224 | ||
d62a17ae | 225 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
226 | zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf->vrf_id, |
227 | ifp->name); | |
ad4cbda1 | 228 | |
85751d1d DS |
229 | if (!bgp) |
230 | return 0; | |
231 | ||
d62a17ae | 232 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
233 | bgp_connected_add(bgp, c); | |
718e3744 | 234 | |
d62a17ae | 235 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
236 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 237 | |
0d020cd6 | 238 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
8761cd6d DS |
239 | bgp_nht_ifp_up(ifp); |
240 | ||
d62a17ae | 241 | return 0; |
718e3744 | 242 | } |
243 | ||
b0b69e59 | 244 | static int bgp_ifp_down(struct interface *ifp) |
718e3744 | 245 | { |
d62a17ae | 246 | struct connected *c; |
247 | struct nbr_connected *nc; | |
248 | struct listnode *node, *nnode; | |
249 | struct bgp *bgp; | |
c19fe3c7 | 250 | struct peer *peer; |
6aeb9e78 | 251 | |
096f7609 | 252 | bgp = ifp->vrf->info; |
718e3744 | 253 | |
6a69ac51 DS |
254 | bgp_mac_del_mac_entry(ifp); |
255 | ||
d62a17ae | 256 | if (BGP_DEBUG(zebra, ZEBRA)) |
096f7609 IR |
257 | zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf->vrf_id, |
258 | ifp->name); | |
ad4cbda1 | 259 | |
85751d1d DS |
260 | if (!bgp) |
261 | return 0; | |
262 | ||
d62a17ae | 263 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
264 | bgp_connected_delete(bgp, c); | |
718e3744 | 265 | |
d62a17ae | 266 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
267 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 268 | |
d62a17ae | 269 | /* Fast external-failover */ |
c19fe3c7 | 270 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 271 | |
d62a17ae | 272 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
50bd8995 | 273 | /* Take down directly connected peers. */ |
c8d6f0d6 | 274 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 | 275 | && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED)) |
d62a17ae | 276 | continue; |
718e3744 | 277 | |
d62a17ae | 278 | if (ifp == peer->nexthop.ifp) { |
279 | BGP_EVENT_ADD(peer, BGP_Stop); | |
280 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
281 | } | |
282 | } | |
283 | } | |
718e3744 | 284 | |
0d020cd6 | 285 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
8761cd6d DS |
286 | bgp_nht_ifp_down(ifp); |
287 | ||
d62a17ae | 288 | return 0; |
718e3744 | 289 | } |
290 | ||
121f9dee | 291 | static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 292 | { |
d62a17ae | 293 | struct connected *ifc; |
2f9123e0 | 294 | struct bgp *bgp; |
bc6d1b15 P |
295 | struct peer *peer; |
296 | struct prefix *addr; | |
297 | struct listnode *node, *nnode; | |
298 | afi_t afi; | |
299 | safi_t safi; | |
2f9123e0 DS |
300 | |
301 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 302 | |
121f9dee | 303 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 304 | |
305 | if (ifc == NULL) | |
306 | return 0; | |
307 | ||
2dbe669b DA |
308 | if (bgp_debug_zebra(ifc->address)) |
309 | zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id, | |
310 | ifc->ifp->name, ifc->address); | |
d62a17ae | 311 | |
85751d1d DS |
312 | if (!bgp) |
313 | return 0; | |
314 | ||
d62a17ae | 315 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 316 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 317 | |
d62a17ae | 318 | /* If we have learnt of any neighbors on this interface, |
319 | * check to kick off any BGP interface-based neighbors, | |
320 | * but only if this is a link-local address. | |
321 | */ | |
322 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
323 | && !list_isempty(ifc->ifp->nbr_connected)) | |
324 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
bc6d1b15 P |
325 | else { |
326 | addr = ifc->address; | |
327 | ||
328 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
329 | if (addr->family == AF_INET) | |
330 | continue; | |
331 | ||
332 | /* | |
333 | * If the Peer's interface name matches the | |
334 | * interface name for which BGP received the | |
335 | * update and if the received interface address | |
336 | * is a globalV6 and if the peer is currently | |
337 | * using a v4-mapped-v6 addr or a link local | |
338 | * address, then copy the Rxed global v6 addr | |
339 | * into peer's v6_global and send updates out | |
340 | * with new nexthop addr. | |
341 | */ | |
342 | if ((peer->conf_if && | |
343 | (strcmp(peer->conf_if, ifc->ifp->name) == | |
344 | 0)) && | |
345 | !IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6) && | |
346 | ((IS_MAPPED_IPV6( | |
347 | &peer->nexthop.v6_global)) || | |
348 | IN6_IS_ADDR_LINKLOCAL( | |
349 | &peer->nexthop.v6_global))) { | |
350 | ||
351 | if (bgp_debug_zebra(ifc->address)) { | |
352 | zlog_debug( | |
353 | "Update peer %pBP's current intf addr %pI6 and send updates", | |
354 | peer, | |
355 | &peer->nexthop | |
356 | .v6_global); | |
357 | } | |
358 | memcpy(&peer->nexthop.v6_global, | |
359 | &addr->u.prefix6, | |
360 | IPV6_MAX_BYTELEN); | |
361 | FOREACH_AFI_SAFI (afi, safi) | |
362 | bgp_announce_route(peer, afi, | |
363 | safi, true); | |
364 | } | |
365 | } | |
366 | } | |
d62a17ae | 367 | } |
368 | ||
369 | return 0; | |
718e3744 | 370 | } |
371 | ||
121f9dee | 372 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 373 | { |
f3d20a2a | 374 | struct listnode *node, *nnode; |
d62a17ae | 375 | struct connected *ifc; |
f3d20a2a | 376 | struct peer *peer; |
2bb8b49c | 377 | struct bgp *bgp; |
f3d20a2a | 378 | struct prefix *addr; |
6aeb9e78 | 379 | |
2f9123e0 | 380 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 381 | |
121f9dee | 382 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 383 | |
d62a17ae | 384 | if (ifc == NULL) |
385 | return 0; | |
718e3744 | 386 | |
2dbe669b DA |
387 | if (bgp_debug_zebra(ifc->address)) |
388 | zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id, | |
389 | ifc->ifp->name, ifc->address); | |
a39275d7 | 390 | |
85751d1d | 391 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 392 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 393 | } |
718e3744 | 394 | |
f3d20a2a DS |
395 | addr = ifc->address; |
396 | ||
397 | if (bgp) { | |
398 | /* | |
399 | * When we are using the v6 global as part of the peering | |
400 | * nexthops and we are removing it, then we need to | |
401 | * clear the peer data saved for that nexthop and | |
402 | * cause a re-announcement of the route. Since | |
403 | * we do not want the peering to bounce. | |
404 | */ | |
405 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
2bb8b49c DS |
406 | afi_t afi; |
407 | safi_t safi; | |
408 | ||
f3d20a2a DS |
409 | if (addr->family == AF_INET) |
410 | continue; | |
411 | ||
412 | if (!IN6_IS_ADDR_LINKLOCAL(&addr->u.prefix6) | |
413 | && memcmp(&peer->nexthop.v6_global, | |
414 | &addr->u.prefix6, 16) | |
415 | == 0) { | |
416 | memset(&peer->nexthop.v6_global, 0, 16); | |
417 | FOREACH_AFI_SAFI (afi, safi) | |
418 | bgp_announce_route(peer, afi, safi, | |
419 | true); | |
420 | } | |
421 | } | |
422 | } | |
423 | ||
721c0857 | 424 | connected_free(&ifc); |
718e3744 | 425 | |
d62a17ae | 426 | return 0; |
718e3744 | 427 | } |
428 | ||
121f9dee | 429 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 430 | { |
d62a17ae | 431 | struct nbr_connected *ifc = NULL; |
432 | struct bgp *bgp; | |
433 | ||
121f9dee | 434 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 435 | |
436 | if (ifc == NULL) | |
437 | return 0; | |
438 | ||
2dbe669b DA |
439 | if (bgp_debug_zebra(ifc->address)) |
440 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX", | |
441 | vrf_id, ifc->ifp->name, ifc->address); | |
d62a17ae | 442 | |
443 | if (if_is_operative(ifc->ifp)) { | |
444 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
445 | if (bgp) | |
446 | bgp_nbr_connected_add(bgp, ifc); | |
447 | } | |
448 | ||
449 | return 0; | |
a80beece DS |
450 | } |
451 | ||
121f9dee | 452 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 453 | { |
d62a17ae | 454 | struct nbr_connected *ifc = NULL; |
455 | struct bgp *bgp; | |
6aeb9e78 | 456 | |
121f9dee | 457 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 458 | |
d62a17ae | 459 | if (ifc == NULL) |
460 | return 0; | |
a80beece | 461 | |
2dbe669b DA |
462 | if (bgp_debug_zebra(ifc->address)) |
463 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX", | |
464 | vrf_id, ifc->ifp->name, ifc->address); | |
a80beece | 465 | |
d62a17ae | 466 | if (if_is_operative(ifc->ifp)) { |
467 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
468 | if (bgp) | |
469 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
470 | } | |
a80beece | 471 | |
d62a17ae | 472 | nbr_connected_free(ifc); |
a80beece | 473 | |
d62a17ae | 474 | return 0; |
a80beece DS |
475 | } |
476 | ||
bfcd43b2 | 477 | /* VRF update for an interface. */ |
121f9dee | 478 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 479 | { |
d62a17ae | 480 | struct interface *ifp; |
481 | vrf_id_t new_vrf_id; | |
482 | struct connected *c; | |
483 | struct nbr_connected *nc; | |
484 | struct listnode *node, *nnode; | |
485 | struct bgp *bgp; | |
c19fe3c7 | 486 | struct peer *peer; |
bfcd43b2 | 487 | |
d62a17ae | 488 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
489 | &new_vrf_id); | |
490 | if (!ifp) | |
491 | return 0; | |
bfcd43b2 | 492 | |
253b7158 | 493 | if (BGP_DEBUG(zebra, ZEBRA)) |
d62a17ae | 494 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, |
495 | ifp->name, new_vrf_id); | |
bfcd43b2 | 496 | |
d62a17ae | 497 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 498 | |
85751d1d DS |
499 | if (bgp) { |
500 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
501 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 502 | |
85751d1d DS |
503 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
504 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 505 | |
85751d1d DS |
506 | /* Fast external-failover */ |
507 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
508 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
c8d6f0d6 | 509 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 DA |
510 | && (peer->gtsm_hops |
511 | != BGP_GTSM_HOPS_CONNECTED)) | |
85751d1d | 512 | continue; |
bfcd43b2 | 513 | |
85751d1d DS |
514 | if (ifp == peer->nexthop.ifp) |
515 | BGP_EVENT_ADD(peer, BGP_Stop); | |
516 | } | |
d62a17ae | 517 | } |
518 | } | |
bfcd43b2 | 519 | |
a36898e7 | 520 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 521 | |
d62a17ae | 522 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
523 | if (!bgp) | |
524 | return 0; | |
bfcd43b2 | 525 | |
d62a17ae | 526 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
527 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 528 | |
d62a17ae | 529 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
530 | bgp_nbr_connected_add(bgp, nc); | |
0d020cd6 PR |
531 | |
532 | hook_call(bgp_vrf_status_changed, bgp, ifp); | |
d62a17ae | 533 | return 0; |
bfcd43b2 | 534 | } |
535 | ||
718e3744 | 536 | /* Zebra route add and delete treatment. */ |
121f9dee | 537 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 538 | { |
9de1f7ff | 539 | enum nexthop_types_t nhtype; |
0789eb69 | 540 | enum blackhole_type bhtype = BLACKHOLE_UNSPEC; |
74489921 | 541 | struct zapi_route api; |
0789eb69 | 542 | union g_addr nexthop = {}; |
9de1f7ff | 543 | ifindex_t ifindex; |
74489921 | 544 | int add, i; |
d62a17ae | 545 | struct bgp *bgp; |
546 | ||
547 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
548 | if (!bgp) | |
549 | return 0; | |
550 | ||
74489921 RW |
551 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
552 | return -1; | |
d62a17ae | 553 | |
74489921 RW |
554 | /* we completely ignore srcdest routes for now. */ |
555 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
556 | return 0; | |
d62a17ae | 557 | |
74489921 RW |
558 | /* ignore link-local address. */ |
559 | if (api.prefix.family == AF_INET6 | |
560 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
561 | return 0; | |
d62a17ae | 562 | |
74489921 | 563 | ifindex = api.nexthops[0].ifindex; |
9de1f7ff | 564 | nhtype = api.nexthops[0].type; |
d62a17ae | 565 | |
0789eb69 KM |
566 | /* api_nh structure has union of gate and bh_type */ |
567 | if (nhtype == NEXTHOP_TYPE_BLACKHOLE) { | |
568 | /* bh_type is only applicable if NEXTHOP_TYPE_BLACKHOLE*/ | |
569 | bhtype = api.nexthops[0].bh_type; | |
570 | } else | |
571 | nexthop = api.nexthops[0].gate; | |
572 | ||
121f9dee | 573 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 574 | if (add) { |
d62a17ae | 575 | /* |
576 | * The ADD message is actually an UPDATE and there is no | |
577 | * explicit DEL | |
578 | * for a prior redistributed route, if any. So, perform an | |
579 | * implicit | |
580 | * DEL processing for the same redistributed route from any | |
581 | * other | |
582 | * source type. | |
583 | */ | |
584 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
585 | if (i != api.type) | |
74489921 | 586 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 587 | api.instance); |
588 | } | |
589 | ||
590 | /* Now perform the add/update. */ | |
74489921 | 591 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
0789eb69 KM |
592 | nhtype, bhtype, api.distance, api.metric, |
593 | api.type, api.instance, api.tag); | |
d62a17ae | 594 | } else { |
74489921 RW |
595 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
596 | api.instance); | |
a39275d7 | 597 | } |
d62a17ae | 598 | |
74489921 | 599 | if (bgp_debug_zebra(&api.prefix)) { |
2dbe669b | 600 | char buf[PREFIX_STRLEN]; |
74489921 | 601 | |
77e62f2b | 602 | if (add) { |
2dbe669b DA |
603 | inet_ntop(api.prefix.family, &nexthop, buf, |
604 | sizeof(buf)); | |
77e62f2b | 605 | zlog_debug( |
801bb996 | 606 | "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI, |
77e62f2b | 607 | vrf_id, zebra_route_string(api.type), |
2dbe669b | 608 | api.instance, &api.prefix, buf, nhtype, ifindex, |
801bb996 | 609 | api.metric, api.distance, api.tag); |
77e62f2b | 610 | } else { |
6bdbcbf1 | 611 | zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id, |
2dbe669b | 612 | zebra_route_string(api.type), api.instance, |
6bdbcbf1 | 613 | &api.prefix); |
77e62f2b | 614 | } |
d62a17ae | 615 | } |
616 | ||
617 | return 0; | |
718e3744 | 618 | } |
6b0655a2 | 619 | |
d62a17ae | 620 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 621 | { |
f4e14fdb | 622 | struct vrf *vrf; |
d62a17ae | 623 | struct listnode *cnode; |
624 | struct interface *ifp; | |
625 | struct connected *connected; | |
626 | struct prefix_ipv4 p; | |
627 | struct prefix *cp; | |
628 | ||
f4e14fdb RW |
629 | vrf = vrf_lookup_by_id(vrf_id); |
630 | if (!vrf) | |
631 | return NULL; | |
632 | ||
d62a17ae | 633 | p.family = AF_INET; |
634 | p.prefix = *addr; | |
635 | p.prefixlen = IPV4_MAX_BITLEN; | |
636 | ||
451fda4f | 637 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 638 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
639 | cp = connected->address; | |
640 | ||
641 | if (cp->family == AF_INET) | |
642 | if (prefix_match(cp, (struct prefix *)&p)) | |
643 | return ifp; | |
644 | } | |
718e3744 | 645 | } |
d62a17ae | 646 | return NULL; |
718e3744 | 647 | } |
648 | ||
d62a17ae | 649 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 650 | { |
f4e14fdb | 651 | struct vrf *vrf; |
d62a17ae | 652 | struct listnode *cnode; |
653 | struct interface *ifp; | |
654 | struct connected *connected; | |
655 | struct prefix *cp; | |
656 | ||
f4e14fdb RW |
657 | vrf = vrf_lookup_by_id(vrf_id); |
658 | if (!vrf) | |
659 | return NULL; | |
660 | ||
451fda4f | 661 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 662 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
663 | cp = connected->address; | |
664 | ||
665 | if (cp->family == AF_INET) | |
666 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
667 | return ifp; | |
668 | } | |
718e3744 | 669 | } |
d62a17ae | 670 | return NULL; |
718e3744 | 671 | } |
672 | ||
d62a17ae | 673 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
674 | vrf_id_t vrf_id) | |
718e3744 | 675 | { |
f4e14fdb | 676 | struct vrf *vrf; |
d62a17ae | 677 | struct listnode *cnode; |
678 | struct interface *ifp; | |
679 | struct connected *connected; | |
680 | struct prefix_ipv6 p; | |
681 | struct prefix *cp; | |
682 | ||
f4e14fdb RW |
683 | vrf = vrf_lookup_by_id(vrf_id); |
684 | if (!vrf) | |
685 | return NULL; | |
686 | ||
d62a17ae | 687 | p.family = AF_INET6; |
688 | p.prefix = *addr; | |
689 | p.prefixlen = IPV6_MAX_BITLEN; | |
690 | ||
451fda4f | 691 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 692 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
693 | cp = connected->address; | |
694 | ||
695 | if (cp->family == AF_INET6) | |
696 | if (prefix_match(cp, (struct prefix *)&p)) { | |
697 | if (IN6_IS_ADDR_LINKLOCAL( | |
698 | &cp->u.prefix6)) { | |
699 | if (ifindex == ifp->ifindex) | |
700 | return ifp; | |
701 | } else | |
702 | return ifp; | |
703 | } | |
704 | } | |
718e3744 | 705 | } |
d62a17ae | 706 | return NULL; |
718e3744 | 707 | } |
708 | ||
d62a17ae | 709 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
710 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 711 | { |
f4e14fdb | 712 | struct vrf *vrf; |
d62a17ae | 713 | struct listnode *cnode; |
714 | struct interface *ifp; | |
715 | struct connected *connected; | |
716 | struct prefix *cp; | |
717 | ||
f4e14fdb RW |
718 | vrf = vrf_lookup_by_id(vrf_id); |
719 | if (!vrf) | |
720 | return NULL; | |
721 | ||
451fda4f | 722 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 723 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
724 | cp = connected->address; | |
725 | ||
726 | if (cp->family == AF_INET6) | |
727 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
728 | if (IN6_IS_ADDR_LINKLOCAL( | |
729 | &cp->u.prefix6)) { | |
730 | if (ifindex == ifp->ifindex) | |
731 | return ifp; | |
732 | } else | |
733 | return ifp; | |
734 | } | |
735 | } | |
718e3744 | 736 | } |
d62a17ae | 737 | return NULL; |
718e3744 | 738 | } |
739 | ||
d62a17ae | 740 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 741 | { |
d62a17ae | 742 | struct listnode *cnode; |
743 | struct connected *connected; | |
744 | struct prefix *cp; | |
745 | ||
746 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
747 | cp = connected->address; | |
748 | ||
749 | if (cp->family == AF_INET6) | |
750 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
751 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
752 | return 1; | |
753 | } | |
754 | } | |
755 | return 0; | |
718e3744 | 756 | } |
757 | ||
dac42f2e | 758 | static bool if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 759 | { |
d62a17ae | 760 | struct listnode *cnode; |
761 | struct connected *connected; | |
762 | struct prefix *cp; | |
763 | ||
764 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
765 | cp = connected->address; | |
766 | ||
767 | if (cp->family == AF_INET6) | |
768 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
769 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
dac42f2e | 770 | return true; |
d62a17ae | 771 | } |
772 | } | |
dac42f2e | 773 | return false; |
718e3744 | 774 | } |
718e3744 | 775 | |
d62a17ae | 776 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 777 | { |
d62a17ae | 778 | struct listnode *cnode; |
779 | struct connected *connected; | |
780 | struct prefix *cp; | |
781 | ||
782 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
783 | cp = connected->address; | |
784 | if ((cp->family == AF_INET) | |
785 | && !ipv4_martian(&(cp->u.prefix4))) { | |
786 | *addr = cp->u.prefix4; | |
787 | return 1; | |
788 | } | |
789 | } | |
790 | return 0; | |
6ee06fa9 PM |
791 | } |
792 | ||
17cdd31e DS |
793 | |
794 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
795 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 796 | { |
d62a17ae | 797 | int ret = 0; |
798 | struct interface *ifp = NULL; | |
dac42f2e | 799 | bool v6_ll_avail = true; |
d62a17ae | 800 | |
801 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
802 | ||
803 | if (!local) | |
17cdd31e | 804 | return false; |
d62a17ae | 805 | if (!remote) |
17cdd31e | 806 | return false; |
d62a17ae | 807 | |
808 | if (local->sa.sa_family == AF_INET) { | |
809 | nexthop->v4 = local->sin.sin_addr; | |
810 | if (peer->update_if) | |
811 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 812 | peer->bgp->vrf_id); |
d62a17ae | 813 | else |
814 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
815 | peer->bgp->vrf_id); | |
718e3744 | 816 | } |
d62a17ae | 817 | if (local->sa.sa_family == AF_INET6) { |
8f2b2139 | 818 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN); |
d62a17ae | 819 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { |
820 | if (peer->conf_if || peer->ifname) | |
821 | ifp = if_lookup_by_name(peer->conf_if | |
822 | ? peer->conf_if | |
823 | : peer->ifname, | |
a36898e7 | 824 | peer->bgp->vrf_id); |
abe68054 PG |
825 | else if (peer->update_if) |
826 | ifp = if_lookup_by_name(peer->update_if, | |
827 | peer->bgp->vrf_id); | |
d62a17ae | 828 | } else if (peer->update_if) |
829 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 830 | peer->bgp->vrf_id); |
d62a17ae | 831 | else |
832 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
833 | local->sin6.sin6_scope_id, | |
834 | peer->bgp->vrf_id); | |
718e3744 | 835 | } |
d62a17ae | 836 | |
17cdd31e DS |
837 | if (!ifp) { |
838 | /* | |
839 | * BGP views do not currently get proper data | |
840 | * from zebra( when attached ) to be able to | |
841 | * properly resolve nexthops, so give this | |
842 | * instance type a pass. | |
843 | */ | |
844 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
845 | return true; | |
846 | /* | |
847 | * If we have no interface data but we have established | |
848 | * some connection w/ zebra than something has gone | |
849 | * terribly terribly wrong here, so say this failed | |
850 | * If we do not any zebra connection then not | |
851 | * having a ifp pointer is ok. | |
852 | */ | |
853 | return zclient_num_connects ? false : true; | |
854 | } | |
d62a17ae | 855 | |
856 | nexthop->ifp = ifp; | |
857 | ||
858 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
859 | if (local->sa.sa_family == AF_INET) { | |
860 | /* IPv6 nexthop*/ | |
861 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
862 | ||
863 | if (!ret) { | |
864 | /* There is no global nexthop. Use link-local address as | |
865 | * both the | |
866 | * global and link-local nexthop. In this scenario, the | |
867 | * expectation | |
868 | * for interop is that the network admin would use a | |
869 | * route-map to | |
870 | * specify the global IPv6 nexthop. | |
871 | */ | |
dac42f2e DS |
872 | v6_ll_avail = |
873 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
d62a17ae | 874 | memcpy(&nexthop->v6_local, &nexthop->v6_global, |
875 | IPV6_MAX_BYTELEN); | |
876 | } else | |
dac42f2e DS |
877 | v6_ll_avail = |
878 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
d62a17ae | 879 | |
dac42f2e DS |
880 | /* |
881 | * If we are a v4 connection and we are not doing unnumbered | |
882 | * not having a v6 LL address is ok | |
883 | */ | |
884 | if (!v6_ll_avail && !peer->conf_if) | |
885 | v6_ll_avail = true; | |
d62a17ae | 886 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) |
887 | peer->shared_network = 1; | |
888 | else | |
889 | peer->shared_network = 0; | |
718e3744 | 890 | } |
718e3744 | 891 | |
d62a17ae | 892 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
893 | if (local->sa.sa_family == AF_INET6) { | |
894 | struct interface *direct = NULL; | |
895 | ||
896 | /* IPv4 nexthop. */ | |
897 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
975a328e | 898 | if (!ret && peer->local_id.s_addr != INADDR_ANY) |
d62a17ae | 899 | nexthop->v4 = peer->local_id; |
900 | ||
901 | /* Global address*/ | |
902 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
903 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
904 | IPV6_MAX_BYTELEN); | |
905 | ||
382c3b08 | 906 | /* If directly connected set link-local address. */ |
d62a17ae | 907 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, |
908 | remote->sin6.sin6_scope_id, | |
909 | peer->bgp->vrf_id); | |
910 | if (direct) | |
dac42f2e DS |
911 | v6_ll_avail = if_get_ipv6_local( |
912 | ifp, &nexthop->v6_local); | |
2ebb354c IR |
913 | /* |
914 | * It's fine to not have a v6 LL when using | |
915 | * update-source loopback/vrf | |
916 | */ | |
608c8870 | 917 | if (!v6_ll_avail && if_is_loopback(ifp)) |
2ebb354c | 918 | v6_ll_avail = true; |
382c3b08 | 919 | else if (!v6_ll_avail) { |
75ba864c DS |
920 | flog_warn( |
921 | EC_BGP_NO_LL_ADDRESS_AVAILABLE, | |
922 | "Interface: %s does not have a v6 LL address associated with it, waiting until one is created for it", | |
923 | ifp->name); | |
924 | } | |
d62a17ae | 925 | } else |
926 | /* Link-local address. */ | |
927 | { | |
928 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
929 | ||
930 | /* If there is no global address. Set link-local | |
931 | address as | |
932 | global. I know this break RFC specification... */ | |
933 | /* In this scenario, the expectation for interop is that | |
934 | * the | |
935 | * network admin would use a route-map to specify the | |
936 | * global | |
937 | * IPv6 nexthop. | |
938 | */ | |
939 | if (!ret) | |
940 | memcpy(&nexthop->v6_global, | |
941 | &local->sin6.sin6_addr, | |
942 | IPV6_MAX_BYTELEN); | |
943 | /* Always set the link-local address */ | |
944 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
945 | IPV6_MAX_BYTELEN); | |
946 | } | |
947 | ||
948 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
949 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
950 | remote->sin6.sin6_scope_id, | |
951 | peer->bgp->vrf_id)) | |
952 | peer->shared_network = 1; | |
953 | else | |
954 | peer->shared_network = 0; | |
955 | } | |
718e3744 | 956 | |
d62a17ae | 957 | /* KAME stack specific treatment. */ |
718e3744 | 958 | #ifdef KAME |
d62a17ae | 959 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
960 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
961 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
962 | } | |
963 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
964 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
965 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
966 | } | |
718e3744 | 967 | #endif /* KAME */ |
e33a4880 | 968 | |
d62a17ae | 969 | /* If we have identified the local interface, there is no error for now. |
970 | */ | |
dac42f2e | 971 | return v6_ll_avail; |
718e3744 | 972 | } |
973 | ||
18ee8310 | 974 | static struct in6_addr * |
40381db7 | 975 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 976 | { |
d62a17ae | 977 | struct in6_addr *nexthop = NULL; |
978 | ||
979 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
980 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
981 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 982 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 983 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 984 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 985 | } |
d62a17ae | 986 | |
987 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
988 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
989 | || path->attr->mp_nexthop_len | |
990 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 991 | /* Check if route-map is set to prefer global over link-local */ |
2bb8b49c | 992 | if (path->attr->mp_nexthop_prefer_global) { |
40381db7 | 993 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 994 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 995 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 996 | } else { |
d62a17ae | 997 | /* Workaround for Cisco's nexthop bug. */ |
998 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 | 999 | &path->attr->mp_nexthop_global) |
ab0e0f73 | 1000 | && path->peer->su_remote |
40381db7 | 1001 | && path->peer->su_remote->sa.sa_family |
59a0f1cb | 1002 | == AF_INET6) { |
d62a17ae | 1003 | nexthop = |
40381db7 | 1004 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 1005 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1006 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 1007 | ->ifindex; |
77e62f2b | 1008 | } else { |
40381db7 | 1009 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 1010 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 1011 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 1012 | } |
d62a17ae | 1013 | } |
1014 | } | |
1015 | ||
1016 | return nexthop; | |
73ac8160 DS |
1017 | } |
1018 | ||
b8685f9b | 1019 | static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p, |
3dc339cd | 1020 | struct bgp_path_info *path) |
73ac8160 | 1021 | { |
b4cb15c6 DL |
1022 | route_map_result_t ret; |
1023 | ||
1782514f | 1024 | ret = route_map_apply(map, p, path); |
40381db7 | 1025 | bgp_attr_flush(path->attr); |
b4cb15c6 DL |
1026 | |
1027 | if (ret != RMAP_DENYMATCH) | |
3dc339cd | 1028 | return true; |
d62a17ae | 1029 | |
1030 | if (bgp_debug_zebra(p)) { | |
1031 | if (p->family == AF_INET) { | |
d62a17ae | 1032 | zlog_debug( |
c0d72166 DS |
1033 | "Zebra rmap deny: IPv4 route %pFX nexthop %pI4", |
1034 | p, &path->attr->nexthop); | |
d62a17ae | 1035 | } |
1036 | if (p->family == AF_INET6) { | |
77e62f2b | 1037 | ifindex_t ifindex; |
1038 | struct in6_addr *nexthop; | |
1039 | ||
40381db7 | 1040 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 1041 | zlog_debug( |
7b6cee89 DS |
1042 | "Zebra rmap deny: IPv6 route %pFX nexthop %pI6", |
1043 | p, nexthop); | |
d62a17ae | 1044 | } |
1045 | } | |
3dc339cd | 1046 | return false; |
73ac8160 DS |
1047 | } |
1048 | ||
b98f7728 PG |
1049 | static struct thread *bgp_tm_thread_connect; |
1050 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
1051 | static bool bgp_tm_chunk_obtained; |
1052 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
1053 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 1054 | struct bgp *bgp_tm_bgp; |
b98f7728 | 1055 | |
cc9f21da | 1056 | static void bgp_zebra_tm_connect(struct thread *t) |
b98f7728 PG |
1057 | { |
1058 | struct zclient *zclient; | |
1059 | int delay = 10, ret = 0; | |
1060 | ||
1061 | zclient = THREAD_ARG(t); | |
1062 | if (bgp_tm_status_connected && zclient->sock > 0) | |
1063 | delay = 60; | |
1064 | else { | |
1065 | bgp_tm_status_connected = false; | |
1066 | ret = tm_table_manager_connect(zclient); | |
1067 | } | |
1068 | if (ret < 0) { | |
b7cd3069 | 1069 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
1070 | bgp_tm_status_connected = false; |
1071 | } else { | |
1072 | if (!bgp_tm_status_connected) | |
1073 | zlog_debug("Connecting to table manager. Success"); | |
1074 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
1075 | if (!bgp_tm_chunk_obtained) { |
1076 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
1077 | &bgp_tm_min, | |
6818e7e5 | 1078 | &bgp_tm_max) >= 0) { |
31c28cd7 | 1079 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1080 | /* parse non installed entries */ |
1081 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1082 | } | |
31c28cd7 | 1083 | } |
b98f7728 PG |
1084 | } |
1085 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1086 | &bgp_tm_thread_connect); | |
b98f7728 PG |
1087 | } |
1088 | ||
6818e7e5 PG |
1089 | bool bgp_zebra_tm_chunk_obtained(void) |
1090 | { | |
1091 | return bgp_tm_chunk_obtained; | |
1092 | } | |
1093 | ||
31c28cd7 PG |
1094 | uint32_t bgp_zebra_tm_get_id(void) |
1095 | { | |
1096 | static int table_id; | |
1097 | ||
1098 | if (!bgp_tm_chunk_obtained) | |
1099 | return ++table_id; | |
1100 | return bgp_tm_min++; | |
1101 | } | |
1102 | ||
6818e7e5 | 1103 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1104 | { |
1105 | int delay = 1; | |
1106 | ||
1107 | /* if already set, do nothing | |
1108 | */ | |
1109 | if (bgp_tm_thread_connect != NULL) | |
1110 | return; | |
1111 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1112 | bgp_tm_chunk_obtained = false; |
1113 | bgp_tm_min = bgp_tm_max = 0; | |
1114 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1115 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1116 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1117 | &bgp_tm_thread_connect); | |
1118 | } | |
1119 | ||
1120 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1121 | uint32_t *start, uint32_t *end) | |
1122 | { | |
1123 | int ret; | |
1124 | ||
1125 | if (!bgp_tm_status_connected) | |
1126 | return -1; | |
1127 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1128 | if (ret < 0) { | |
e50f7cfd | 1129 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1130 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1131 | return -1; |
1132 | } | |
1133 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1134 | chunk_size, *start, *end); | |
1135 | return 0; | |
1136 | } | |
1137 | ||
3dc339cd DA |
1138 | static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1139 | struct in_addr *nexthop, | |
1140 | struct attr *attr, bool is_evpn, | |
1141 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1142 | { |
1143 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1144 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1145 | |
1146 | /* Need to set fields appropriately for EVPN routes imported into | |
1147 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1148 | * connected routes leaked into a VRF. | |
1149 | */ | |
0789eb69 KM |
1150 | if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) { |
1151 | api_nh->type = attr->nh_type; | |
1152 | api_nh->bh_type = attr->bh_type; | |
1153 | } else if (is_evpn) { | |
a2299aba AD |
1154 | /* |
1155 | * If the nexthop is EVPN overlay index gateway IP, | |
1156 | * treat the nexthop as NEXTHOP_TYPE_IPV4 | |
1157 | * Else, mark the nexthop as onlink. | |
1158 | */ | |
1159 | if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP) | |
1160 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1161 | else { | |
1162 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; | |
5609e70f | 1163 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
a2299aba AD |
1164 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
1165 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; | |
1166 | } | |
0789eb69 | 1167 | } else if (nh_othervrf && api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
77e62f2b | 1168 | api_nh->type = NEXTHOP_TYPE_IFINDEX; |
1169 | api_nh->ifindex = attr->nh_ifindex; | |
1170 | } else | |
1171 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1172 | ||
3dc339cd | 1173 | return true; |
77e62f2b | 1174 | } |
1175 | ||
3dc339cd DA |
1176 | static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1177 | struct in6_addr *nexthop, | |
1178 | ifindex_t ifindex, | |
1179 | struct bgp_path_info *pi, | |
1180 | struct bgp_path_info *best_pi, | |
1181 | bool is_evpn, | |
1182 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1183 | { |
1184 | struct attr *attr; | |
1185 | ||
40381db7 | 1186 | attr = pi->attr; |
e1e71450 | 1187 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1188 | |
0789eb69 KM |
1189 | if (attr->nh_type == NEXTHOP_TYPE_BLACKHOLE) { |
1190 | api_nh->type = attr->nh_type; | |
1191 | api_nh->bh_type = attr->bh_type; | |
1192 | } else if (is_evpn) { | |
a2299aba AD |
1193 | /* |
1194 | * If the nexthop is EVPN overlay index gateway IP, | |
1195 | * treat the nexthop as NEXTHOP_TYPE_IPV4 | |
1196 | * Else, mark the nexthop as onlink. | |
1197 | */ | |
1198 | if (attr->evpn_overlay.type == OVERLAY_INDEX_GATEWAY_IP) | |
1199 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1200 | else { | |
1201 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
5609e70f | 1202 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
a2299aba AD |
1203 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
1204 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; | |
1205 | } | |
e1e71450 | 1206 | } else if (nh_othervrf) { |
77e62f2b | 1207 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1208 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1209 | api_nh->ifindex = attr->nh_ifindex; | |
1210 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1211 | if (ifindex == 0) | |
3dc339cd | 1212 | return false; |
77e62f2b | 1213 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1214 | api_nh->ifindex = ifindex; | |
1215 | } else { | |
1216 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1217 | api_nh->ifindex = 0; | |
1218 | } | |
1219 | } else { | |
1220 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1221 | if (pi == best_pi |
1222 | && attr->mp_nexthop_len | |
1223 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1224 | if (pi->peer->nexthop.ifp) | |
1225 | ifindex = | |
1226 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1227 | if (!ifindex) { |
40381db7 DS |
1228 | if (pi->peer->conf_if) |
1229 | ifindex = pi->peer->ifp->ifindex; | |
1230 | else if (pi->peer->ifname) | |
77e62f2b | 1231 | ifindex = ifname2ifindex( |
40381db7 DS |
1232 | pi->peer->ifname, |
1233 | pi->peer->bgp->vrf_id); | |
1234 | else if (pi->peer->nexthop.ifp) | |
1235 | ifindex = | |
1236 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1237 | } |
1238 | ||
1239 | if (ifindex == 0) | |
3dc339cd | 1240 | return false; |
77e62f2b | 1241 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1242 | api_nh->ifindex = ifindex; | |
1243 | } else { | |
1244 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1245 | api_nh->ifindex = 0; | |
1246 | } | |
1247 | } | |
0789eb69 KM |
1248 | /* api_nh structure has union of gate and bh_type */ |
1249 | if (nexthop && api_nh->type != NEXTHOP_TYPE_BLACKHOLE) | |
c2ca3e25 | 1250 | api_nh->gate.ipv6 = *nexthop; |
77e62f2b | 1251 | |
3dc339cd | 1252 | return true; |
77e62f2b | 1253 | } |
1254 | ||
f7e1c681 | 1255 | static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr, |
1256 | uint64_t tot_bw, uint32_t *nh_weight) | |
4e30bc2b | 1257 | { |
f7e1c681 | 1258 | uint32_t bw; |
1259 | uint64_t tmp; | |
1260 | ||
1261 | bw = attr->link_bw; | |
1262 | /* zero link-bandwidth and link-bandwidth not present are treated | |
1263 | * as the same situation. | |
1264 | */ | |
1265 | if (!bw) { | |
1266 | /* the only situations should be if we're either told | |
1267 | * to skip or use default weight. | |
1268 | */ | |
1269 | if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING) | |
1270 | return false; | |
1271 | *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT; | |
1272 | } else { | |
1273 | tmp = (uint64_t)bw * 100; | |
1274 | *nh_weight = ((uint32_t)(tmp / tot_bw)); | |
1275 | } | |
1276 | ||
1277 | return true; | |
4e30bc2b | 1278 | } |
1279 | ||
9bcb3eef | 1280 | void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p, |
4b7e6066 | 1281 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1282 | safi_t safi) |
718e3744 | 1283 | { |
7cc27d41 | 1284 | struct zapi_route api = { 0 }; |
9913029c | 1285 | struct zapi_nexthop *api_nh; |
2ad4f093 | 1286 | int nh_family; |
a74e593b | 1287 | unsigned int valid_nh_count = 0; |
1a9cb083 | 1288 | bool allow_recursion = false; |
d7c0a89a | 1289 | uint8_t distance; |
d62a17ae | 1290 | struct peer *peer; |
4b7e6066 | 1291 | struct bgp_path_info *mpinfo; |
ad1844f7 | 1292 | struct bgp *bgp_orig; |
d7c0a89a | 1293 | uint32_t metric; |
b4cb15c6 | 1294 | struct attr local_attr; |
4b7e6066 DS |
1295 | struct bgp_path_info local_info; |
1296 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1297 | route_tag_t tag; |
ea7cd161 | 1298 | struct bgp_sid_info *sid_info; |
31e1a103 SW |
1299 | mpls_label_t *labels; |
1300 | uint32_t num_labels = 0; | |
1301 | mpls_label_t nh_label; | |
ddb5b488 | 1302 | int nh_othervrf = 0; |
06f16b2c | 1303 | bool nh_updated = false; |
4e30bc2b | 1304 | bool do_wt_ecmp; |
1305 | uint64_t cum_bw = 0; | |
6348981a AK |
1306 | uint32_t nhg_id = 0; |
1307 | bool is_add; | |
67f67ba4 DA |
1308 | uint32_t ttl = 0; |
1309 | uint32_t bos = 0; | |
1310 | uint32_t exp = 0; | |
d62a17ae | 1311 | |
1312 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1313 | * know of this instance. | |
1314 | */ | |
1315 | if (!bgp_install_info_to_zebra(bgp)) | |
1316 | return; | |
1317 | ||
d62a17ae | 1318 | if (bgp->main_zebra_update_hold) |
1319 | return; | |
1320 | ||
d90b788e | 1321 | if (safi == SAFI_FLOWSPEC) { |
9bcb3eef DS |
1322 | bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi, |
1323 | safi, true); | |
d90b788e A |
1324 | return; |
1325 | } | |
529efa23 | 1326 | |
ddb5b488 PZ |
1327 | /* |
1328 | * vrf leaking support (will have only one nexthop) | |
1329 | */ | |
1330 | if (info->extra && info->extra->bgp_orig) | |
1331 | nh_othervrf = 1; | |
1332 | ||
9913029c | 1333 | /* Make Zebra API structure. */ |
9913029c RW |
1334 | api.vrf_id = bgp->vrf_id; |
1335 | api.type = ZEBRA_ROUTE_BGP; | |
1336 | api.safi = safi; | |
1337 | api.prefix = *p; | |
1338 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1339 | ||
d62a17ae | 1340 | peer = info->peer; |
1341 | ||
2bb8b49c DS |
1342 | if (info->type == ZEBRA_ROUTE_BGP |
1343 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1344 | ||
1345 | /* Obtain peer from parent */ | |
1346 | if (info->extra && info->extra->parent) | |
1347 | peer = ((struct bgp_path_info *)(info->extra->parent)) | |
1348 | ->peer; | |
ddb5b488 PZ |
1349 | } |
1350 | ||
d62a17ae | 1351 | tag = info->attr->tag; |
1352 | ||
d62a17ae | 1353 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1354 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1355 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1356 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1357 | } |
a39275d7 | 1358 | |
c8d6f0d6 | 1359 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL) |
d62a17ae | 1360 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) |
892fedb6 | 1361 | || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) |
d62a17ae | 1362 | |
1a9cb083 | 1363 | allow_recursion = true; |
d62a17ae | 1364 | |
951745bd PG |
1365 | if (info->attr->rmap_table_id) { |
1366 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1367 | api.tableid = info->attr->rmap_table_id; | |
1368 | } | |
1369 | ||
ef3e0d04 SM |
1370 | if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) |
1371 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
1372 | ||
2ad4f093 RW |
1373 | /* Metric is currently based on the best-path only */ |
1374 | metric = info->attr->med; | |
4e30bc2b | 1375 | |
1376 | /* Determine if we're doing weighted ECMP or not */ | |
f7e1c681 | 1377 | do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info); |
4e30bc2b | 1378 | if (do_wt_ecmp) |
1379 | cum_bw = bgp_path_info_mpath_cumbw(info); | |
1380 | ||
6348981a | 1381 | /* EVPN MAC-IP routes are installed with a L3 NHG id */ |
8bcb09a1 | 1382 | if (bgp_evpn_path_es_use_nhg(bgp, info, &nhg_id)) { |
6348981a | 1383 | mpinfo = NULL; |
8bcb09a1 AK |
1384 | api.nhgid = nhg_id; |
1385 | if (nhg_id) | |
1386 | SET_FLAG(api.message, ZAPI_MESSAGE_NHG); | |
1387 | } else { | |
6348981a | 1388 | mpinfo = info; |
8bcb09a1 | 1389 | } |
6348981a AK |
1390 | |
1391 | for (; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { | |
5313cd67 SW |
1392 | labels = NULL; |
1393 | num_labels = 0; | |
f7e1c681 | 1394 | uint32_t nh_weight; |
5609e70f | 1395 | bool is_evpn; |
31e1a103 | 1396 | bool is_parent_evpn; |
f7e1c681 | 1397 | |
a74e593b RW |
1398 | if (valid_nh_count >= multipath_num) |
1399 | break; | |
1400 | ||
b4cb15c6 | 1401 | *mpinfo_cp = *mpinfo; |
f7e1c681 | 1402 | nh_weight = 0; |
b4cb15c6 | 1403 | |
d0d695f4 | 1404 | /* Get nexthop address-family */ |
7226bc40 TA |
1405 | if (p->family == AF_INET && |
1406 | !BGP_ATTR_MP_NEXTHOP_LEN_IP6(mpinfo_cp->attr)) | |
d0d695f4 | 1407 | nh_family = AF_INET; |
7226bc40 TA |
1408 | else if (p->family == AF_INET6 || |
1409 | (p->family == AF_INET && | |
1410 | BGP_ATTR_MP_NEXTHOP_LEN_IP6(mpinfo_cp->attr))) | |
d0d695f4 RW |
1411 | nh_family = AF_INET6; |
1412 | else | |
1413 | continue; | |
1414 | ||
f7e1c681 | 1415 | /* If processing for weighted ECMP, determine the next hop's |
1416 | * weight. Based on user setting, we may skip the next hop | |
1417 | * in some situations. | |
1418 | */ | |
1419 | if (do_wt_ecmp) { | |
1420 | if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr, | |
1421 | cum_bw, &nh_weight)) | |
1422 | continue; | |
1423 | } | |
1374aec9 | 1424 | api_nh = &api.nexthops[valid_nh_count]; |
ef3e0d04 SM |
1425 | |
1426 | if (CHECK_FLAG(info->attr->flag, | |
1427 | ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) | |
1428 | api_nh->srte_color = info->attr->srte_color; | |
1429 | ||
257b7b6e DS |
1430 | if (bgp_debug_zebra(&api.prefix)) { |
1431 | if (mpinfo->extra) { | |
70492dea DS |
1432 | zlog_debug("%s: p=%pFX, bgp_is_valid_label: %d", |
1433 | __func__, p, | |
257b7b6e DS |
1434 | bgp_is_valid_label( |
1435 | &mpinfo->extra->label[0])); | |
1436 | } else { | |
70492dea DS |
1437 | zlog_debug( |
1438 | "%s: p=%pFX, extra is NULL, no label", | |
1439 | __func__, p); | |
ddb5b488 | 1440 | } |
257b7b6e | 1441 | } |
ddb5b488 | 1442 | |
257b7b6e DS |
1443 | if (bgp->table_map[afi][safi].name) { |
1444 | /* Copy info and attributes, so the route-map | |
1445 | apply doesn't modify the BGP route info. */ | |
1446 | local_attr = *mpinfo->attr; | |
1447 | mpinfo_cp->attr = &local_attr; | |
1448 | if (!bgp_table_map_apply(bgp->table_map[afi][safi].map, | |
1449 | p, mpinfo_cp)) | |
1450 | continue; | |
b4cb15c6 | 1451 | |
257b7b6e DS |
1452 | /* metric/tag is only allowed to be |
1453 | * overridden on 1st nexthop */ | |
1454 | if (mpinfo == info) { | |
1455 | metric = mpinfo_cp->attr->med; | |
1456 | tag = mpinfo_cp->attr->tag; | |
b4cb15c6 | 1457 | } |
257b7b6e | 1458 | } |
d62a17ae | 1459 | |
ad1844f7 IS |
1460 | BGP_ORIGINAL_UPDATE(bgp_orig, mpinfo, bgp); |
1461 | ||
31e1a103 | 1462 | is_parent_evpn = is_route_parent_evpn(mpinfo); |
5609e70f | 1463 | |
31e1a103 | 1464 | if (nh_family == AF_INET) { |
77e62f2b | 1465 | nh_updated = update_ipv4nh_for_route_install( |
ad1844f7 IS |
1466 | nh_othervrf, bgp_orig, |
1467 | &mpinfo_cp->attr->nexthop, mpinfo_cp->attr, | |
31e1a103 | 1468 | is_parent_evpn, api_nh); |
2ad4f093 | 1469 | } else { |
f220da99 | 1470 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1471 | struct in6_addr *nexthop; |
9913029c | 1472 | |
18ee8310 DS |
1473 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1474 | &ifindex); | |
00c10664 DA |
1475 | |
1476 | if (!nexthop) | |
1477 | nh_updated = update_ipv4nh_for_route_install( | |
ad1844f7 | 1478 | nh_othervrf, bgp_orig, |
00c10664 | 1479 | &mpinfo_cp->attr->nexthop, |
31e1a103 SW |
1480 | mpinfo_cp->attr, is_parent_evpn, |
1481 | api_nh); | |
00c10664 DA |
1482 | else |
1483 | nh_updated = update_ipv6nh_for_route_install( | |
ad1844f7 | 1484 | nh_othervrf, bgp_orig, nexthop, ifindex, |
31e1a103 | 1485 | mpinfo, info, is_parent_evpn, api_nh); |
2ad4f093 | 1486 | } |
d62a17ae | 1487 | |
31e1a103 SW |
1488 | is_evpn = !!CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN); |
1489 | ||
77e62f2b | 1490 | /* Did we get proper nexthop info to update zebra? */ |
1491 | if (!nh_updated) | |
1492 | continue; | |
1493 | ||
1a9cb083 JM |
1494 | /* Allow recursion if it is a multipath group with both |
1495 | * eBGP and iBGP paths. | |
1496 | */ | |
1497 | if (!allow_recursion | |
1498 | && CHECK_FLAG(bgp->flags, BGP_FLAG_PEERTYPE_MULTIPATH_RELAX) | |
1499 | && (mpinfo->peer->sort == BGP_PEER_IBGP | |
1500 | || mpinfo->peer->sort == BGP_PEER_CONFED)) | |
1501 | allow_recursion = true; | |
1502 | ||
31e1a103 SW |
1503 | if (mpinfo->extra) { |
1504 | labels = mpinfo->extra->label; | |
1505 | num_labels = mpinfo->extra->num_labels; | |
1506 | } | |
9913029c | 1507 | |
31e1a103 SW |
1508 | if (labels && (num_labels > 0) && |
1509 | (is_evpn || bgp_is_valid_label(&labels[0]))) { | |
1510 | enum lsp_types_t nh_label_type = ZEBRA_LSP_NONE; | |
68a02e06 | 1511 | |
31e1a103 | 1512 | if (is_evpn) { |
742341e1 SW |
1513 | nh_label = *bgp_evpn_path_info_labels_get_l3vni( |
1514 | labels, num_labels); | |
31e1a103 | 1515 | nh_label_type = ZEBRA_LSP_EVPN; |
742341e1 | 1516 | } else { |
31e1a103 SW |
1517 | mpls_lse_decode(labels[0], &nh_label, &ttl, |
1518 | &exp, &bos); | |
1519 | } | |
1520 | ||
1521 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); | |
2ad4f093 | 1522 | api_nh->label_num = 1; |
31e1a103 SW |
1523 | api_nh->label_type = nh_label_type; |
1524 | api_nh->labels[0] = nh_label; | |
d62a17ae | 1525 | } |
a2299aba AD |
1526 | |
1527 | if (is_evpn | |
1528 | && mpinfo->attr->evpn_overlay.type | |
1529 | != OVERLAY_INDEX_GATEWAY_IP) | |
1530 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), | |
1531 | sizeof(struct ethaddr)); | |
1532 | ||
f7e1c681 | 1533 | api_nh->weight = nh_weight; |
4e30bc2b | 1534 | |
31e1a103 SW |
1535 | if (mpinfo->extra && !is_evpn && |
1536 | bgp_is_valid_label(&labels[0]) && | |
1537 | !sid_zero(&mpinfo->extra->sid[0].sid)) { | |
ea7cd161 RS |
1538 | sid_info = &mpinfo->extra->sid[0]; |
1539 | ||
1540 | memcpy(&api_nh->seg6_segs, &sid_info->sid, | |
53a4de82 | 1541 | sizeof(api_nh->seg6_segs)); |
09e06fcf | 1542 | |
ea7cd161 | 1543 | if (sid_info->transposition_len != 0) { |
31e1a103 SW |
1544 | mpls_lse_decode(labels[0], &nh_label, &ttl, |
1545 | &exp, &bos); | |
db656439 | 1546 | |
31e1a103 | 1547 | if (nh_label < MPLS_LABEL_UNRESERVED_MIN) { |
db656439 RS |
1548 | if (bgp_debug_zebra(&api.prefix)) |
1549 | zlog_debug( | |
1550 | "skip invalid SRv6 routes: transposition scheme is used, but label is too small"); | |
1551 | continue; | |
1552 | } | |
1553 | ||
31e1a103 | 1554 | transpose_sid(&api_nh->seg6_segs, nh_label, |
ea7cd161 RS |
1555 | sid_info->transposition_offset, |
1556 | sid_info->transposition_len); | |
1557 | } | |
1558 | ||
09e06fcf | 1559 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6); |
53a4de82 HS |
1560 | } |
1561 | ||
2ad4f093 RW |
1562 | valid_nh_count++; |
1563 | } | |
d62a17ae | 1564 | |
6348981a AK |
1565 | is_add = (valid_nh_count || nhg_id) ? true : false; |
1566 | ||
ec0acb80 | 1567 | if (is_add && CHECK_FLAG(bm->flags, BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA)) { |
94effaf0 | 1568 | struct bgp_zebra_opaque bzo = {}; |
1d7260a1 DA |
1569 | const char *reason = |
1570 | bgp_path_selection_reason2str(dest->reason); | |
94effaf0 DA |
1571 | |
1572 | strlcpy(bzo.aspath, info->attr->aspath->str, | |
1573 | sizeof(bzo.aspath)); | |
1574 | ||
1575 | if (info->attr->flag & ATTR_FLAG_BIT(BGP_ATTR_COMMUNITIES)) | |
9a706b42 DA |
1576 | strlcpy(bzo.community, |
1577 | bgp_attr_get_community(info->attr)->str, | |
94effaf0 DA |
1578 | sizeof(bzo.community)); |
1579 | ||
1580 | if (info->attr->flag | |
1581 | & ATTR_FLAG_BIT(BGP_ATTR_LARGE_COMMUNITIES)) | |
1bcf3a96 DA |
1582 | strlcpy(bzo.lcommunity, |
1583 | bgp_attr_get_lcommunity(info->attr)->str, | |
94effaf0 | 1584 | sizeof(bzo.lcommunity)); |
e46723a5 | 1585 | |
1d7260a1 DA |
1586 | strlcpy(bzo.selection_reason, reason, |
1587 | sizeof(bzo.selection_reason)); | |
1588 | ||
e46723a5 | 1589 | SET_FLAG(api.message, ZAPI_MESSAGE_OPAQUE); |
94effaf0 DA |
1590 | api.opaque.length = MIN(sizeof(struct bgp_zebra_opaque), |
1591 | ZAPI_MESSAGE_OPAQUE_LENGTH); | |
1592 | memcpy(api.opaque.data, &bzo, api.opaque.length); | |
e46723a5 DS |
1593 | } |
1594 | ||
1a9cb083 JM |
1595 | if (allow_recursion) |
1596 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); | |
1597 | ||
5cc347c4 DS |
1598 | /* |
1599 | * When we create an aggregate route we must also | |
1600 | * install a Null0 route in the RIB, so overwrite | |
1601 | * what was written into api with a blackhole route | |
1602 | */ | |
1603 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1604 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1605 | else | |
2ad4f093 | 1606 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1607 | |
2ad4f093 RW |
1608 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1609 | api.metric = metric; | |
d62a17ae | 1610 | |
2ad4f093 RW |
1611 | if (tag) { |
1612 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1613 | api.tag = tag; | |
1614 | } | |
d62a17ae | 1615 | |
2ad4f093 RW |
1616 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1617 | if (distance) { | |
1618 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1619 | api.distance = distance; | |
1620 | } | |
d62a17ae | 1621 | |
2ad4f093 | 1622 | if (bgp_debug_zebra(p)) { |
2ad4f093 | 1623 | char nh_buf[INET6_ADDRSTRLEN]; |
d8744f72 CS |
1624 | char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'}; |
1625 | char buf1[ETHER_ADDR_STRLEN]; | |
2ad4f093 | 1626 | char label_buf[20]; |
53a4de82 HS |
1627 | char sid_buf[20]; |
1628 | char segs_buf[256]; | |
2ad4f093 RW |
1629 | int i; |
1630 | ||
2dbe669b DA |
1631 | zlog_debug( |
1632 | "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI | |
6348981a | 1633 | " count %d nhg %d", |
4d67f4fc | 1634 | is_add ? "add" : "delete", bgp->vrf_id, &api.prefix, |
1635 | api.metric, api.tag, api.nexthop_num, nhg_id); | |
2ad4f093 RW |
1636 | for (i = 0; i < api.nexthop_num; i++) { |
1637 | api_nh = &api.nexthops[i]; | |
1638 | ||
1ee069db CS |
1639 | switch (api_nh->type) { |
1640 | case NEXTHOP_TYPE_IFINDEX: | |
77e62f2b | 1641 | nh_buf[0] = '\0'; |
1ee069db CS |
1642 | break; |
1643 | case NEXTHOP_TYPE_IPV4: | |
1644 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1645 | nh_family = AF_INET; | |
77e62f2b | 1646 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1647 | sizeof(nh_buf)); | |
1ee069db CS |
1648 | break; |
1649 | case NEXTHOP_TYPE_IPV6: | |
1650 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1651 | nh_family = AF_INET6; | |
1652 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1653 | sizeof(nh_buf)); | |
1654 | break; | |
1655 | case NEXTHOP_TYPE_BLACKHOLE: | |
1656 | strlcpy(nh_buf, "blackhole", sizeof(nh_buf)); | |
1657 | break; | |
1658 | default: | |
1659 | /* Note: add new nexthop case */ | |
1660 | assert(0); | |
1661 | break; | |
77e62f2b | 1662 | } |
2ad4f093 RW |
1663 | |
1664 | label_buf[0] = '\0'; | |
d8744f72 | 1665 | eth_buf[0] = '\0'; |
bbf32574 | 1666 | segs_buf[0] = '\0'; |
5609e70f XL |
1667 | if (CHECK_FLAG(api_nh->flags, |
1668 | ZAPI_NEXTHOP_FLAG_LABEL) && | |
1669 | !CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN)) | |
a7799788 CS |
1670 | snprintf(label_buf, sizeof(label_buf), |
1671 | "label %u", api_nh->labels[0]); | |
5609e70f XL |
1672 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_SEG6) && |
1673 | !CHECK_FLAG(api_nh->flags, | |
1674 | ZAPI_NEXTHOP_FLAG_EVPN)) { | |
53a4de82 HS |
1675 | inet_ntop(AF_INET6, &api_nh->seg6_segs, |
1676 | sid_buf, sizeof(sid_buf)); | |
1677 | snprintf(segs_buf, sizeof(segs_buf), "segs %s", | |
1678 | sid_buf); | |
1679 | } | |
5609e70f XL |
1680 | if (CHECK_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_EVPN) && |
1681 | !is_zero_mac(&api_nh->rmac)) | |
a7799788 CS |
1682 | snprintf(eth_buf, sizeof(eth_buf), " RMAC %s", |
1683 | prefix_mac2str(&api_nh->rmac, | |
1684 | buf1, sizeof(buf1))); | |
53a4de82 | 1685 | zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s %s", |
77e62f2b | 1686 | i + 1, nh_buf, api_nh->ifindex, |
4e30bc2b | 1687 | api_nh->vrf_id, api_nh->weight, |
53a4de82 | 1688 | label_buf, segs_buf, eth_buf); |
d62a17ae | 1689 | } |
2ad4f093 | 1690 | |
960035b2 PZ |
1691 | int recursion_flag = 0; |
1692 | ||
1693 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1694 | recursion_flag = 1; | |
1695 | ||
70492dea DS |
1696 | zlog_debug("%s: %pFX: announcing to zebra (recursion %sset)", |
1697 | __func__, p, (recursion_flag ? "" : "NOT ")); | |
960035b2 | 1698 | } |
6348981a | 1699 | zclient_route_send(is_add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, |
2ad4f093 | 1700 | zclient, &api); |
718e3744 | 1701 | } |
1702 | ||
73ac8160 | 1703 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1704 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1705 | { |
9bcb3eef | 1706 | struct bgp_dest *dest; |
d62a17ae | 1707 | struct bgp_table *table; |
40381db7 | 1708 | struct bgp_path_info *pi; |
d62a17ae | 1709 | |
1710 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1711 | * know of this instance. | |
1712 | */ | |
1713 | if (!bgp_install_info_to_zebra(bgp)) | |
1714 | return; | |
1715 | ||
1716 | table = bgp->rib[afi][safi]; | |
1717 | if (!table) | |
1718 | return; | |
1719 | ||
9bcb3eef DS |
1720 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) |
1721 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
40381db7 | 1722 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1723 | |
40381db7 DS |
1724 | (pi->type == ZEBRA_ROUTE_BGP |
1725 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1726 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1727 | |
9bcb3eef DS |
1728 | bgp_zebra_announce(dest, |
1729 | bgp_dest_get_prefix(dest), | |
b54892e0 | 1730 | pi, bgp, afi, safi); |
73ac8160 DS |
1731 | } |
1732 | ||
c163f297 DS |
1733 | /* Announce routes of any bgp subtype of a table to zebra */ |
1734 | void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi, | |
1735 | safi_t safi) | |
1736 | { | |
1737 | struct bgp_dest *dest; | |
1738 | struct bgp_table *table; | |
1739 | struct bgp_path_info *pi; | |
1740 | ||
1741 | if (!bgp_install_info_to_zebra(bgp)) | |
1742 | return; | |
1743 | ||
1744 | table = bgp->rib[afi][safi]; | |
1745 | if (!table) | |
1746 | return; | |
1747 | ||
1748 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) | |
1749 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
1750 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && | |
1751 | pi->type == ZEBRA_ROUTE_BGP) | |
1752 | bgp_zebra_announce(dest, | |
1753 | bgp_dest_get_prefix(dest), | |
1754 | pi, bgp, afi, safi); | |
1755 | } | |
1756 | ||
5a1ae2c2 | 1757 | void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1758 | struct bgp *bgp, safi_t safi) |
718e3744 | 1759 | { |
2ad4f093 | 1760 | struct zapi_route api; |
f7df1907 | 1761 | struct peer *peer; |
ddb5b488 | 1762 | |
d62a17ae | 1763 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1764 | * know of this instance. | |
1765 | */ | |
568e10ca | 1766 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1767 | return; |
1768 | ||
f7df1907 PG |
1769 | if (safi == SAFI_FLOWSPEC) { |
1770 | peer = info->peer; | |
d90b788e A |
1771 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1772 | return; | |
f7df1907 | 1773 | } |
529efa23 | 1774 | |
2ad4f093 | 1775 | memset(&api, 0, sizeof(api)); |
568e10ca | 1776 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1777 | api.type = ZEBRA_ROUTE_BGP; |
1778 | api.safi = safi; | |
1779 | api.prefix = *p; | |
d62a17ae | 1780 | |
1276ce38 PG |
1781 | if (info->attr->rmap_table_id) { |
1782 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1783 | api.tableid = info->attr->rmap_table_id; | |
1784 | } | |
1785 | ||
2dbe669b DA |
1786 | if (bgp_debug_zebra(p)) |
1787 | zlog_debug("Tx route delete VRF %u %pFX", bgp->vrf_id, | |
1788 | &api.prefix); | |
d62a17ae | 1789 | |
2ad4f093 | 1790 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1791 | } |
56c1f7d8 | 1792 | |
c163f297 DS |
1793 | /* Withdraw all entries in a BGP instances RIB table from Zebra */ |
1794 | void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi) | |
1795 | { | |
1796 | struct bgp_dest *dest; | |
1797 | struct bgp_table *table; | |
1798 | struct bgp_path_info *pi; | |
1799 | ||
1800 | if (!bgp_install_info_to_zebra(bgp)) | |
1801 | return; | |
1802 | ||
1803 | table = bgp->rib[afi][safi]; | |
1804 | if (!table) | |
1805 | return; | |
1806 | ||
1807 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) { | |
1808 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
1809 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) | |
1810 | && (pi->type == ZEBRA_ROUTE_BGP)) | |
1811 | bgp_zebra_withdraw(bgp_dest_get_prefix(dest), | |
1812 | pi, bgp, safi); | |
1813 | } | |
1814 | } | |
1815 | } | |
1816 | ||
d7c0a89a QY |
1817 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1818 | unsigned short instance) | |
7c8ff89e | 1819 | { |
d62a17ae | 1820 | struct list *red_list; |
1821 | struct listnode *node; | |
1822 | struct bgp_redist *red; | |
7c8ff89e | 1823 | |
d62a17ae | 1824 | red_list = bgp->redist[afi][type]; |
1825 | if (!red_list) | |
1826 | return (NULL); | |
7c8ff89e | 1827 | |
d62a17ae | 1828 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1829 | if (red->instance == instance) | |
1830 | return red; | |
7c8ff89e | 1831 | |
d62a17ae | 1832 | return NULL; |
7c8ff89e DS |
1833 | } |
1834 | ||
d7c0a89a QY |
1835 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1836 | unsigned short instance) | |
7c8ff89e | 1837 | { |
d62a17ae | 1838 | struct list *red_list; |
1839 | struct bgp_redist *red; | |
7c8ff89e | 1840 | |
d62a17ae | 1841 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1842 | if (red) | |
1843 | return red; | |
7c8ff89e | 1844 | |
d62a17ae | 1845 | if (!bgp->redist[afi][type]) |
1846 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1847 | |
d62a17ae | 1848 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1849 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1850 | red->instance = instance; |
7c8ff89e | 1851 | |
d62a17ae | 1852 | listnode_add(red_list, red); |
7c8ff89e | 1853 | |
d62a17ae | 1854 | return red; |
7c8ff89e DS |
1855 | } |
1856 | ||
d7c0a89a QY |
1857 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1858 | unsigned short instance) | |
7c8ff89e | 1859 | { |
d62a17ae | 1860 | struct bgp_redist *red; |
1861 | ||
1862 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1863 | ||
1864 | if (red) { | |
1865 | listnode_delete(bgp->redist[afi][type], red); | |
1866 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1867 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1868 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1869 | } |
7c8ff89e | 1870 | } |
6b0655a2 | 1871 | |
718e3744 | 1872 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1873 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1874 | unsigned short instance, bool changed) |
718e3744 | 1875 | { |
e923dd62 | 1876 | /* If redistribute options are changed call |
1877 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1878 | * the routes | |
1879 | */ | |
1880 | if (changed) | |
1881 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1882 | |
d62a17ae | 1883 | /* Return if already redistribute flag is set. */ |
1884 | if (instance) { | |
1885 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1886 | instance)) | |
1887 | return CMD_WARNING; | |
718e3744 | 1888 | |
d62a17ae | 1889 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1890 | } else { | |
d9083050 IR |
1891 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) |
1892 | return CMD_WARNING; | |
1893 | ||
49e5a4a0 | 1894 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1895 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1896 | vnc_export_bgp_enable( |
1897 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1898 | } | |
65efcfce LB |
1899 | #endif |
1900 | ||
d62a17ae | 1901 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1902 | } | |
718e3744 | 1903 | |
ea12cf11 DS |
1904 | /* |
1905 | * Don't try to register if we're not connected to Zebra or Zebra | |
1906 | * doesn't know of this instance. | |
1907 | * | |
1908 | * When we come up later well resend if needed. | |
d62a17ae | 1909 | */ |
1910 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1911 | return CMD_SUCCESS; |
a39275d7 | 1912 | |
d62a17ae | 1913 | if (BGP_DEBUG(zebra, ZEBRA)) |
1914 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1915 | bgp->vrf_id, afi, zebra_route_string(type), | |
1916 | instance); | |
518f0eb1 | 1917 | |
d62a17ae | 1918 | /* Send distribute add message to zebra. */ |
1919 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1920 | instance, bgp->vrf_id); | |
718e3744 | 1921 | |
d62a17ae | 1922 | return CMD_SUCCESS; |
718e3744 | 1923 | } |
1924 | ||
d62a17ae | 1925 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1926 | unsigned short instance) |
518f0eb1 | 1927 | { |
d62a17ae | 1928 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1929 | * know of this instance. | |
1930 | */ | |
1931 | if (!bgp_install_info_to_zebra(bgp)) | |
1932 | return -1; | |
1933 | ||
1934 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1935 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1936 | bgp->vrf_id, afi, zebra_route_string(type), | |
1937 | instance); | |
1938 | ||
1939 | /* Send distribute add message to zebra. */ | |
1940 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1941 | instance, bgp->vrf_id); | |
1942 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1943 | instance, bgp->vrf_id); | |
1944 | ||
1945 | return 0; | |
518f0eb1 DS |
1946 | } |
1947 | ||
718e3744 | 1948 | /* Redistribute with route-map specification. */ |
3dc339cd DA |
1949 | bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1950 | struct route_map *route_map) | |
718e3744 | 1951 | { |
d62a17ae | 1952 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
3dc339cd | 1953 | return false; |
718e3744 | 1954 | |
0a22ddfb | 1955 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1956 | /* Decrement the count for existing routemap and |
1957 | * increment the count for new route map. | |
1958 | */ | |
1959 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1960 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1961 | red->rmap.map = route_map; |
b4897fa5 | 1962 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1963 | |
3dc339cd | 1964 | return true; |
718e3744 | 1965 | } |
1966 | ||
1967 | /* Redistribute with metric specification. */ | |
3dc339cd DA |
1968 | bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
1969 | afi_t afi, int type, uint32_t metric) | |
718e3744 | 1970 | { |
9bcb3eef | 1971 | struct bgp_dest *dest; |
40381db7 | 1972 | struct bgp_path_info *pi; |
d62a17ae | 1973 | |
1974 | if (red->redist_metric_flag && red->redist_metric == metric) | |
3dc339cd | 1975 | return false; |
d62a17ae | 1976 | |
1977 | red->redist_metric_flag = 1; | |
1978 | red->redist_metric = metric; | |
1979 | ||
9bcb3eef DS |
1980 | for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest; |
1981 | dest = bgp_route_next(dest)) { | |
1982 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
40381db7 DS |
1983 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1984 | && pi->type == type | |
1985 | && pi->instance == red->instance) { | |
d62a17ae | 1986 | struct attr *old_attr; |
1987 | struct attr new_attr; | |
1988 | ||
6f4f49b2 | 1989 | new_attr = *pi->attr; |
d62a17ae | 1990 | new_attr.med = red->redist_metric; |
40381db7 DS |
1991 | old_attr = pi->attr; |
1992 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1993 | bgp_attr_unintern(&old_attr); |
1994 | ||
9bcb3eef | 1995 | bgp_path_info_set_flag(dest, pi, |
18ee8310 | 1996 | BGP_PATH_ATTR_CHANGED); |
9bcb3eef | 1997 | bgp_process(bgp, dest, afi, SAFI_UNICAST); |
d62a17ae | 1998 | } |
1999 | } | |
2000 | } | |
2001 | ||
3dc339cd | 2002 | return true; |
718e3744 | 2003 | } |
2004 | ||
2005 | /* Unset redistribution. */ | |
d62a17ae | 2006 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 2007 | unsigned short instance) |
718e3744 | 2008 | { |
d62a17ae | 2009 | struct bgp_redist *red; |
2010 | ||
2011 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
2012 | if (!red) | |
2013 | return CMD_SUCCESS; | |
2014 | ||
2015 | /* Return if zebra connection is disabled. */ | |
2016 | if (instance) { | |
2017 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
2018 | instance)) | |
2019 | return CMD_WARNING; | |
2020 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
2021 | } else { | |
2022 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
2023 | return CMD_WARNING; | |
2024 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
2025 | } | |
718e3744 | 2026 | |
d62a17ae | 2027 | if (bgp_install_info_to_zebra(bgp)) { |
2028 | /* Send distribute delete message to zebra. */ | |
2029 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2030 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
2031 | bgp->vrf_id, afi, zebra_route_string(type), | |
2032 | instance); | |
2033 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
2034 | type, instance, bgp->vrf_id); | |
2035 | } | |
2036 | ||
2037 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
2038 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
2039 | ||
2040 | return CMD_SUCCESS; | |
718e3744 | 2041 | } |
2042 | ||
6aeb9e78 | 2043 | /* Unset redistribution. */ |
d62a17ae | 2044 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 2045 | unsigned short instance) |
6aeb9e78 | 2046 | { |
d62a17ae | 2047 | struct bgp_redist *red; |
6aeb9e78 | 2048 | |
ddb5b488 PZ |
2049 | /* |
2050 | * vnc and vpn->vrf checks must be before red check because | |
2051 | * they operate within bgpd irrespective of zebra connection | |
2052 | * status. red lookup fails if there is no zebra connection. | |
2053 | */ | |
49e5a4a0 | 2054 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 2055 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
2056 | vnc_export_bgp_disable(bgp, afi); |
2057 | } | |
2058 | #endif | |
ddb5b488 | 2059 | |
d62a17ae | 2060 | red = bgp_redist_lookup(bgp, afi, type, instance); |
2061 | if (!red) | |
2062 | return CMD_SUCCESS; | |
6aeb9e78 | 2063 | |
d62a17ae | 2064 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 2065 | |
d62a17ae | 2066 | /* Unset route-map. */ |
0a22ddfb | 2067 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 2068 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 2069 | red->rmap.map = NULL; |
6aeb9e78 | 2070 | |
d62a17ae | 2071 | /* Unset metric. */ |
2072 | red->redist_metric_flag = 0; | |
2073 | red->redist_metric = 0; | |
6aeb9e78 | 2074 | |
d62a17ae | 2075 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 2076 | |
d62a17ae | 2077 | return CMD_SUCCESS; |
6aeb9e78 DS |
2078 | } |
2079 | ||
fc2408ec DS |
2080 | void bgp_redistribute_redo(struct bgp *bgp) |
2081 | { | |
2082 | afi_t afi; | |
2083 | int i; | |
2084 | struct list *red_list; | |
2085 | struct listnode *node; | |
2086 | struct bgp_redist *red; | |
2087 | ||
2088 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
2089 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
2090 | ||
2091 | red_list = bgp->redist[afi][i]; | |
2092 | if (!red_list) | |
2093 | continue; | |
2094 | ||
2095 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
2096 | bgp_redistribute_resend(bgp, afi, i, | |
2097 | red->instance); | |
2098 | } | |
2099 | } | |
2100 | } | |
2101 | } | |
2102 | ||
d62a17ae | 2103 | void bgp_zclient_reset(void) |
718e3744 | 2104 | { |
d62a17ae | 2105 | zclient_reset(zclient); |
718e3744 | 2106 | } |
2107 | ||
ad4cbda1 | 2108 | /* Register this instance with Zebra. Invoked upon connect (for |
2109 | * default instance) and when other VRFs are learnt (or created and | |
2110 | * already learnt). | |
2111 | */ | |
d62a17ae | 2112 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 2113 | { |
d62a17ae | 2114 | /* Don't try to register if we're not connected to Zebra */ |
2115 | if (!zclient || zclient->sock < 0) | |
2116 | return; | |
ad4cbda1 | 2117 | |
d62a17ae | 2118 | if (BGP_DEBUG(zebra, ZEBRA)) |
2119 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 2120 | |
d62a17ae | 2121 | /* Register for router-id, interfaces, redistributed routes. */ |
2122 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 2123 | |
e2f3a930 T |
2124 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
2125 | if (bgp->advertise_all_vni) | |
d62a17ae | 2126 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
2127 | |
2128 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 2129 | } |
2130 | ||
2131 | /* Deregister this instance with Zebra. Invoked upon the instance | |
2132 | * being deleted (default or VRF) and it is already registered. | |
2133 | */ | |
d62a17ae | 2134 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 2135 | { |
d62a17ae | 2136 | /* Don't try to deregister if we're not connected to Zebra */ |
2137 | if (zclient->sock < 0) | |
2138 | return; | |
ad4cbda1 | 2139 | |
d62a17ae | 2140 | if (BGP_DEBUG(zebra, ZEBRA)) |
2141 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 2142 | |
e2f3a930 T |
2143 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
2144 | if (bgp->advertise_all_vni) | |
d62a17ae | 2145 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 2146 | |
d62a17ae | 2147 | /* Deregister for router-id, interfaces, redistributed routes. */ |
2148 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 2149 | } |
2150 | ||
d62a17ae | 2151 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2152 | { |
bbad0276 | 2153 | uint32_t ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 2154 | |
d62a17ae | 2155 | /* Don't try to initiate if we're not connected to Zebra */ |
2156 | if (zclient->sock < 0) | |
2157 | return; | |
4a04e5f7 | 2158 | |
d62a17ae | 2159 | if (BGP_DEBUG(zebra, ZEBRA)) |
2160 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
2161 | peer->host); | |
4a04e5f7 | 2162 | |
b3a3290e DS |
2163 | /* |
2164 | * If unnumbered peer (peer->ifp) call thru zapi to start RAs. | |
2165 | * If we don't have an ifp pointer, call function to find the | |
2166 | * ifps for a numbered enhe peer to turn RAs on. | |
2167 | */ | |
2168 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2169 | peer->ifp, 1, ra_interval) | |
2170 | : bgp_nht_reg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2171 | } |
2172 | ||
d62a17ae | 2173 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2174 | { |
d62a17ae | 2175 | /* Don't try to terminate if we're not connected to Zebra */ |
2176 | if (zclient->sock < 0) | |
2177 | return; | |
4a04e5f7 | 2178 | |
d62a17ae | 2179 | if (BGP_DEBUG(zebra, ZEBRA)) |
2180 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
2181 | peer->host); | |
4a04e5f7 | 2182 | |
b3a3290e DS |
2183 | /* |
2184 | * If unnumbered peer (peer->ifp) call thru zapi to stop RAs. | |
2185 | * If we don't have an ifp pointer, call function to find the | |
2186 | * ifps for a numbered enhe peer to turn RAs off. | |
2187 | */ | |
2188 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2189 | peer->ifp, 0, 0) | |
2190 | : bgp_nht_dereg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2191 | } |
2192 | ||
31310b25 MK |
2193 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
2194 | { | |
2195 | struct stream *s = NULL; | |
2196 | ||
2197 | /* Check socket. */ | |
2198 | if (!zclient || zclient->sock < 0) | |
2199 | return 0; | |
2200 | ||
2201 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2202 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2203 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2204 | zlog_debug( |
2205 | "%s: No zebra instance to talk to, cannot advertise subnet", | |
2206 | __func__); | |
31310b25 | 2207 | return 0; |
bb4ef1ae | 2208 | } |
31310b25 MK |
2209 | |
2210 | s = zclient->obuf; | |
2211 | stream_reset(s); | |
2212 | ||
2213 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
2214 | stream_putc(s, advertise); | |
2215 | stream_put3(s, vni); | |
2216 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2217 | ||
2218 | return zclient_send_message(zclient); | |
2219 | } | |
2220 | ||
a8016157 CS |
2221 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
2222 | { | |
2223 | struct stream *s = NULL; | |
2224 | ||
2225 | /* Check socket. */ | |
2226 | if (!zclient || zclient->sock < 0) | |
2227 | return 0; | |
2228 | ||
2229 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2230 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2231 | return 0; | |
2232 | ||
2233 | s = zclient->obuf; | |
2234 | stream_reset(s); | |
2235 | ||
2236 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
2237 | stream_putc(s, advertise); | |
2238 | stream_putl(s, vni); | |
2239 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2240 | ||
2241 | return zclient_send_message(zclient); | |
2242 | } | |
2243 | ||
1a98c087 MK |
2244 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
2245 | { | |
2246 | struct stream *s = NULL; | |
2247 | ||
2248 | /* Check socket. */ | |
2249 | if (!zclient || zclient->sock < 0) | |
2250 | return 0; | |
2251 | ||
2252 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2253 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2254 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2255 | zlog_debug( |
2256 | "%s: No zebra instance to talk to, not installing gw_macip", | |
2257 | __func__); | |
1a98c087 | 2258 | return 0; |
bb4ef1ae | 2259 | } |
1a98c087 MK |
2260 | |
2261 | s = zclient->obuf; | |
2262 | stream_reset(s); | |
2263 | ||
2264 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
2265 | stream_putc(s, advertise); | |
cc6d5476 | 2266 | stream_putl(s, vni); |
1a98c087 MK |
2267 | stream_putw_at(s, 0, stream_get_endp(s)); |
2268 | ||
2269 | return zclient_send_message(zclient); | |
2270 | } | |
2271 | ||
fd069644 DS |
2272 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
2273 | enum vxlan_flood_control flood_ctrl) | |
2274 | { | |
2275 | struct stream *s; | |
2276 | ||
2277 | /* Check socket. */ | |
2278 | if (!zclient || zclient->sock < 0) | |
2279 | return 0; | |
2280 | ||
2281 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2282 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2283 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2284 | zlog_debug( |
2285 | "%s: No zebra instance to talk to, not installing all vni", | |
2286 | __func__); | |
fd069644 | 2287 | return 0; |
bb4ef1ae | 2288 | } |
fd069644 DS |
2289 | |
2290 | s = zclient->obuf; | |
2291 | stream_reset(s); | |
2292 | ||
2293 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2294 | stream_putc(s, flood_ctrl); | |
2295 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2296 | ||
2297 | return zclient_send_message(zclient); | |
2298 | } | |
2299 | ||
d62a17ae | 2300 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2301 | { |
d62a17ae | 2302 | struct stream *s; |
7724c0a1 | 2303 | |
d62a17ae | 2304 | /* Check socket. */ |
2305 | if (!zclient || zclient->sock < 0) | |
2306 | return 0; | |
7724c0a1 | 2307 | |
d62a17ae | 2308 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2309 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2310 | return 0; | |
7724c0a1 | 2311 | |
d62a17ae | 2312 | s = zclient->obuf; |
2313 | stream_reset(s); | |
7724c0a1 | 2314 | |
d62a17ae | 2315 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2316 | stream_putc(s, advertise); | |
fbac9605 DS |
2317 | /* Also inform current BUM handling setting. This is really |
2318 | * relevant only when 'advertise' is set. | |
2319 | */ | |
fd069644 | 2320 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2321 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2322 | |
d62a17ae | 2323 | return zclient_send_message(zclient); |
7724c0a1 | 2324 | } |
2325 | ||
0b9d9cd0 CS |
2326 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2327 | { | |
2328 | struct stream *s; | |
2329 | ||
2330 | /* Check socket. */ | |
2331 | if (!zclient || zclient->sock < 0) | |
2332 | return 0; | |
2333 | ||
2334 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2335 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2336 | return 0; | |
2337 | ||
2338 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2339 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2340 | bgp->evpn_info->dup_addr_detect ? | |
2341 | "enable" : "disable", | |
2342 | bgp->evpn_info->dad_max_moves, | |
2343 | bgp->evpn_info->dad_time, | |
2344 | bgp->evpn_info->dad_freeze ? | |
2345 | "enable" : "disable", | |
2346 | bgp->evpn_info->dad_freeze_time); | |
2347 | ||
2348 | s = zclient->obuf; | |
2349 | stream_reset(s); | |
2350 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2351 | bgp->vrf_id); | |
2352 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2353 | stream_putl(s, bgp->evpn_info->dad_time); | |
2354 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2355 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2356 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2357 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2358 | ||
2359 | return zclient_send_message(zclient); | |
2360 | } | |
2361 | ||
121f9dee | 2362 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2363 | { |
2364 | uint32_t seqno, priority, unique; | |
2365 | enum zapi_rule_notify_owner note; | |
2366 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2367 | struct bgp_pbr_rule *bgp_pbr = NULL; |
58a1d249 | 2368 | char ifname[INTERFACE_NAMSIZ + 1]; |
30d50e6d PG |
2369 | |
2370 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
58a1d249 | 2371 | ifname, ¬e)) |
30d50e6d PG |
2372 | return -1; |
2373 | ||
70eabd12 | 2374 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2375 | if (!bgp_pbra) { |
ffee150e PG |
2376 | /* look in bgp pbr rule */ |
2377 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2378 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2379 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2380 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
15569c58 | 2381 | __func__, unique); |
ffee150e PG |
2382 | return 0; |
2383 | } | |
30d50e6d PG |
2384 | } |
2385 | ||
2386 | switch (note) { | |
2387 | case ZAPI_RULE_FAIL_INSTALL: | |
2388 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2389 | zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__); |
ffee150e PG |
2390 | if (bgp_pbra) { |
2391 | bgp_pbra->installed = false; | |
2392 | bgp_pbra->install_in_progress = false; | |
2393 | } else { | |
2394 | bgp_pbr->installed = false; | |
2395 | bgp_pbr->install_in_progress = false; | |
2396 | } | |
30d50e6d PG |
2397 | break; |
2398 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2399 | if (bgp_pbra) { |
2400 | bgp_pbra->installed = true; | |
2401 | bgp_pbra->install_in_progress = false; | |
2402 | } else { | |
ce3c0614 PG |
2403 | struct bgp_path_info *path; |
2404 | struct bgp_path_info_extra *extra; | |
2405 | ||
ffee150e PG |
2406 | bgp_pbr->installed = true; |
2407 | bgp_pbr->install_in_progress = false; | |
2408 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2409 | /* link bgp_info to bgp_pbr */ |
2410 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2411 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2412 | listnode_add_force(&extra->bgp_fs_iprule, |
2413 | bgp_pbr); | |
ffee150e | 2414 | } |
30d50e6d | 2415 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 | 2416 | zlog_debug("%s: Received RULE_INSTALLED", __func__); |
30d50e6d | 2417 | break; |
f18a08f5 | 2418 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2419 | case ZAPI_RULE_REMOVED: |
2420 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2421 | zlog_debug("%s: Received RULE REMOVED", __func__); |
30d50e6d PG |
2422 | break; |
2423 | } | |
2424 | ||
2425 | return 0; | |
2426 | } | |
2427 | ||
121f9dee | 2428 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2429 | { |
2430 | uint32_t unique; | |
2431 | enum zapi_ipset_notify_owner note; | |
2432 | struct bgp_pbr_match *bgp_pbim; | |
2433 | ||
2434 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2435 | &unique, | |
2436 | ¬e)) | |
2437 | return -1; | |
2438 | ||
2439 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2440 | if (!bgp_pbim) { | |
2441 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2442 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
15569c58 | 2443 | __func__, note, unique); |
30d50e6d PG |
2444 | return 0; |
2445 | } | |
2446 | ||
2447 | switch (note) { | |
2448 | case ZAPI_IPSET_FAIL_INSTALL: | |
2449 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2450 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__); |
30d50e6d PG |
2451 | bgp_pbim->installed = false; |
2452 | bgp_pbim->install_in_progress = false; | |
2453 | break; | |
2454 | case ZAPI_IPSET_INSTALLED: | |
2455 | bgp_pbim->installed = true; | |
2456 | bgp_pbim->install_in_progress = false; | |
2457 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2458 | zlog_debug("%s: Received IPSET_INSTALLED", __func__); |
30d50e6d | 2459 | break; |
f18a08f5 | 2460 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2461 | case ZAPI_IPSET_REMOVED: |
2462 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2463 | zlog_debug("%s: Received IPSET REMOVED", __func__); |
30d50e6d PG |
2464 | break; |
2465 | } | |
2466 | ||
2467 | return 0; | |
2468 | } | |
2469 | ||
121f9dee | 2470 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2471 | { |
2472 | uint32_t unique; | |
2473 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2474 | enum zapi_ipset_entry_notify_owner note; | |
2475 | struct bgp_pbr_match_entry *bgp_pbime; | |
2476 | ||
2477 | if (!zapi_ipset_entry_notify_decode( | |
2478 | zclient->ibuf, | |
2479 | &unique, | |
2480 | ipset_name, | |
2481 | ¬e)) | |
2482 | return -1; | |
2483 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2484 | ipset_name, | |
2485 | unique); | |
2486 | if (!bgp_pbime) { | |
2487 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2488 | zlog_debug( |
2489 | "%s: Fail to look BGP match entry (%u, ID %u)", | |
2490 | __func__, note, unique); | |
30d50e6d PG |
2491 | return 0; |
2492 | } | |
2493 | ||
2494 | switch (note) { | |
2495 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2496 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2497 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
15569c58 | 2498 | __func__); |
30d50e6d PG |
2499 | bgp_pbime->installed = false; |
2500 | bgp_pbime->install_in_progress = false; | |
2501 | break; | |
2502 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2503 | { |
9b6d8fcf | 2504 | struct bgp_path_info *path; |
4b7e6066 DS |
2505 | struct bgp_path_info_extra *extra; |
2506 | ||
2507 | bgp_pbime->installed = true; | |
2508 | bgp_pbime->install_in_progress = false; | |
2509 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2510 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
15569c58 | 2511 | __func__); |
9b6d8fcf DS |
2512 | /* link bgp_path_info to bpme */ |
2513 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2514 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2515 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2516 | } |
30d50e6d | 2517 | break; |
f18a08f5 | 2518 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2519 | case ZAPI_IPSET_ENTRY_REMOVED: |
2520 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2521 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
15569c58 | 2522 | __func__); |
30d50e6d PG |
2523 | break; |
2524 | } | |
2525 | return 0; | |
2526 | } | |
2527 | ||
121f9dee | 2528 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2529 | { |
2530 | uint32_t unique; | |
2531 | enum zapi_iptable_notify_owner note; | |
2532 | struct bgp_pbr_match *bgpm; | |
2533 | ||
2534 | if (!zapi_iptable_notify_decode( | |
2535 | zclient->ibuf, | |
2536 | &unique, | |
2537 | ¬e)) | |
2538 | return -1; | |
2539 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2540 | if (!bgpm) { | |
2541 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed | 2542 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
15569c58 | 2543 | __func__, note, unique); |
c16a0a62 PG |
2544 | return 0; |
2545 | } | |
2546 | switch (note) { | |
2547 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2548 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2549 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
15569c58 | 2550 | __func__); |
c16a0a62 PG |
2551 | bgpm->installed_in_iptable = false; |
2552 | bgpm->install_iptable_in_progress = false; | |
2553 | break; | |
2554 | case ZAPI_IPTABLE_INSTALLED: | |
2555 | bgpm->installed_in_iptable = true; | |
2556 | bgpm->install_iptable_in_progress = false; | |
2557 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2558 | zlog_debug("%s: Received IPTABLE_INSTALLED", __func__); |
a6b07429 | 2559 | bgpm->action->refcnt++; |
c16a0a62 | 2560 | break; |
f18a08f5 | 2561 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2562 | case ZAPI_IPTABLE_REMOVED: |
2563 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2564 | zlog_debug("%s: Received IPTABLE REMOVED", __func__); |
c16a0a62 PG |
2565 | break; |
2566 | } | |
2567 | return 0; | |
2568 | } | |
2569 | ||
a77e2f4b S |
2570 | /* Process route notification messages from RIB */ |
2571 | static int bgp_zebra_route_notify_owner(int command, struct zclient *zclient, | |
2572 | zebra_size_t length, vrf_id_t vrf_id) | |
2573 | { | |
2574 | struct prefix p; | |
2575 | enum zapi_route_notify_owner note; | |
2576 | uint32_t table_id; | |
a77e2f4b S |
2577 | afi_t afi; |
2578 | safi_t safi; | |
2579 | struct bgp_dest *dest; | |
2580 | struct bgp *bgp; | |
2581 | struct bgp_path_info *pi, *new_select; | |
2582 | ||
2583 | if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, ¬e, | |
2584 | &afi, &safi)) { | |
cc42c4f0 | 2585 | zlog_err("%s : error in msg decode", __func__); |
a77e2f4b S |
2586 | return -1; |
2587 | } | |
2588 | ||
2589 | /* Get the bgp instance */ | |
2590 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2591 | if (!bgp) { | |
2592 | flog_err(EC_BGP_INVALID_BGP_INSTANCE, | |
cc42c4f0 DS |
2593 | "%s : bgp instance not found vrf %d", __func__, |
2594 | vrf_id); | |
a77e2f4b S |
2595 | return -1; |
2596 | } | |
2597 | ||
a77e2f4b | 2598 | /* Find the bgp route node */ |
0da34e49 DA |
2599 | dest = bgp_safi_node_lookup(bgp->rib[afi][safi], safi, &p, |
2600 | &bgp->vrf_prd); | |
a77e2f4b S |
2601 | if (!dest) |
2602 | return -1; | |
2603 | ||
a77e2f4b S |
2604 | switch (note) { |
2605 | case ZAPI_ROUTE_INSTALLED: | |
2606 | new_select = NULL; | |
2607 | /* Clear the flags so that route can be processed */ | |
be785e35 DS |
2608 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); |
2609 | SET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2610 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2611 | zlog_debug("route %pRN : INSTALLED", dest); | |
2612 | /* Find the best route */ | |
2613 | for (pi = dest->info; pi; pi = pi->next) { | |
2614 | /* Process aggregate route */ | |
2615 | bgp_aggregate_increment(bgp, &p, pi, afi, safi); | |
2616 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2617 | new_select = pi; | |
2618 | } | |
2619 | /* Advertise the route */ | |
2620 | if (new_select) | |
2621 | group_announce_route(bgp, afi, safi, dest, new_select); | |
2622 | else { | |
2623 | flog_err(EC_BGP_INVALID_ROUTE, | |
2624 | "selected route %pRN not found", dest); | |
2625 | ||
2626 | bgp_dest_unlock_node(dest); | |
2627 | return -1; | |
a77e2f4b S |
2628 | } |
2629 | break; | |
2630 | case ZAPI_ROUTE_REMOVED: | |
2631 | /* Route deleted from dataplane, reset the installed flag | |
2632 | * so that route can be reinstalled when client sends | |
2633 | * route add later | |
2634 | */ | |
2635 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
1a3519b6 DS |
2636 | if (BGP_DEBUG(zebra, ZEBRA)) |
2637 | zlog_debug("route %pRN: Removed from Fib", dest); | |
a77e2f4b S |
2638 | break; |
2639 | case ZAPI_ROUTE_FAIL_INSTALL: | |
be785e35 | 2640 | new_select = NULL; |
1a3519b6 DS |
2641 | if (BGP_DEBUG(zebra, ZEBRA)) |
2642 | zlog_debug("route: %pRN Failed to Install into Fib", | |
2643 | dest); | |
be785e35 DS |
2644 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); |
2645 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2646 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
2647 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2648 | new_select = pi; | |
2649 | } | |
2650 | if (new_select) | |
2651 | group_announce_route(bgp, afi, safi, dest, new_select); | |
a77e2f4b S |
2652 | /* Error will be logged by zebra module */ |
2653 | break; | |
2654 | case ZAPI_ROUTE_BETTER_ADMIN_WON: | |
1a3519b6 DS |
2655 | if (BGP_DEBUG(zebra, ZEBRA)) |
2656 | zlog_debug("route: %pRN removed due to better admin won", | |
2657 | dest); | |
be785e35 DS |
2658 | new_select = NULL; |
2659 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALL_PENDING); | |
2660 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2661 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
2662 | bgp_aggregate_decrement(bgp, &p, pi, afi, safi); | |
2663 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED)) | |
2664 | new_select = pi; | |
2665 | } | |
2666 | if (new_select) | |
2667 | group_announce_route(bgp, afi, safi, dest, new_select); | |
a77e2f4b S |
2668 | /* No action required */ |
2669 | break; | |
2670 | case ZAPI_ROUTE_REMOVE_FAIL: | |
1a3519b6 DS |
2671 | zlog_warn("%s: Route %pRN failure to remove", |
2672 | __func__, dest); | |
a77e2f4b S |
2673 | break; |
2674 | } | |
e71ad4b6 DA |
2675 | |
2676 | bgp_dest_unlock_node(dest); | |
a77e2f4b S |
2677 | return 0; |
2678 | } | |
2679 | ||
6cfe5d15 PG |
2680 | /* this function is used to forge ip rule, |
2681 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2682 | * - or for sample ip rule cmd |
6cfe5d15 | 2683 | */ |
30d50e6d | 2684 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2685 | struct bgp_pbr_action *pbra, |
2686 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2687 | { |
6cfe5d15 | 2688 | struct prefix pfx; |
f01e580f | 2689 | uint8_t fam = AF_INET; |
e95666cb | 2690 | char ifname[INTERFACE_NAMSIZ]; |
30d50e6d | 2691 | |
9f1f03ec | 2692 | if (pbra->nh.type == NEXTHOP_TYPE_IPV6) |
f01e580f | 2693 | fam = AF_INET6; |
30d50e6d | 2694 | stream_putl(s, 0); /* seqno unused */ |
8112a7a0 PG |
2695 | if (pbr) |
2696 | stream_putl(s, pbr->priority); | |
2697 | else | |
2698 | stream_putl(s, 0); | |
2699 | /* ruleno unused - priority change | |
2700 | * ruleno permits distinguishing various FS PBR entries | |
2701 | * - FS PBR entries based on ipset/iptables | |
2702 | * - FS PBR entries based on iprule | |
2703 | * the latter may contain default routing information injected by FS | |
2704 | */ | |
6cfe5d15 PG |
2705 | if (pbr) |
2706 | stream_putl(s, pbr->unique); | |
2707 | else | |
2708 | stream_putl(s, pbra->unique); | |
f56697ef | 2709 | stream_putc(s, 0); /* ip protocol being used */ |
6cfe5d15 PG |
2710 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) |
2711 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2712 | else { | |
2713 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2714 | pfx.family = fam; |
6cfe5d15 PG |
2715 | } |
2716 | stream_putc(s, pfx.family); | |
2717 | stream_putc(s, pfx.prefixlen); | |
2718 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2719 | |
2720 | stream_putw(s, 0); /* src port */ | |
2721 | ||
6cfe5d15 PG |
2722 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2723 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2724 | else { | |
2725 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2726 | pfx.family = fam; |
6cfe5d15 PG |
2727 | } |
2728 | stream_putc(s, pfx.family); | |
2729 | stream_putc(s, pfx.prefixlen); | |
2730 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2731 | |
2732 | stream_putw(s, 0); /* dst port */ | |
e95666cb | 2733 | stream_putc(s, 0); /* dsfield */ |
6cfe5d15 PG |
2734 | /* if pbr present, fwmark is not used */ |
2735 | if (pbr) | |
2736 | stream_putl(s, 0); | |
2737 | else | |
2738 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d | 2739 | |
62bf6b42 DS |
2740 | stream_putl(s, 0); /* queue id */ |
2741 | stream_putw(s, 0); /* vlan_id */ | |
2742 | stream_putw(s, 0); /* vlan_flags */ | |
2743 | stream_putw(s, 0); /* pcp */ | |
2744 | ||
30d50e6d PG |
2745 | stream_putl(s, pbra->table_id); |
2746 | ||
e95666cb DS |
2747 | memset(ifname, 0, sizeof(ifname)); |
2748 | stream_put(s, ifname, INTERFACE_NAMSIZ); /* ifname unused */ | |
30d50e6d PG |
2749 | } |
2750 | ||
2751 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2752 | struct bgp_pbr_match *pbim) | |
2753 | { | |
2754 | stream_putl(s, pbim->unique); | |
2755 | stream_putl(s, pbim->type); | |
a60b7031 | 2756 | stream_putc(s, pbim->family); |
30d50e6d PG |
2757 | stream_put(s, pbim->ipset_name, |
2758 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2759 | } |
2760 | ||
2761 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2762 | struct bgp_pbr_match_entry *pbime) | |
2763 | { | |
2764 | stream_putl(s, pbime->unique); | |
2765 | /* check that back pointer is not null */ | |
2766 | stream_put(s, pbime->backpointer->ipset_name, | |
2767 | ZEBRA_IPSET_NAME_SIZE); | |
2768 | ||
2769 | stream_putc(s, pbime->src.family); | |
2770 | stream_putc(s, pbime->src.prefixlen); | |
2771 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2772 | ||
2773 | stream_putc(s, pbime->dst.family); | |
2774 | stream_putc(s, pbime->dst.prefixlen); | |
2775 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2776 | |
2777 | stream_putw(s, pbime->src_port_min); | |
2778 | stream_putw(s, pbime->src_port_max); | |
2779 | stream_putw(s, pbime->dst_port_min); | |
2780 | stream_putw(s, pbime->dst_port_max); | |
2781 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2782 | } |
2783 | ||
c16a0a62 PG |
2784 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2785 | struct bgp_pbr_action *bpa, | |
2786 | struct bgp_pbr_match *pbm) | |
2787 | { | |
2788 | stream_putl(s, pbm->unique2); | |
2789 | ||
2790 | stream_putl(s, pbm->type); | |
2791 | ||
2792 | stream_putl(s, pbm->flags); | |
2793 | ||
2794 | /* TODO: correlate with what is contained | |
2795 | * into bgp_pbr_action. | |
2796 | * currently only forward supported | |
2797 | */ | |
2798 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2799 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2800 | else | |
2801 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2802 | stream_putl(s, bpa->fwmark); | |
2803 | stream_put(s, pbm->ipset_name, | |
2804 | ZEBRA_IPSET_NAME_SIZE); | |
a60b7031 | 2805 | stream_putc(s, pbm->family); |
83360720 PG |
2806 | stream_putw(s, pbm->pkt_len_min); |
2807 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2808 | stream_putw(s, pbm->tcp_flags); |
2809 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2810 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2811 | stream_putc(s, pbm->fragment); |
f449d223 | 2812 | stream_putc(s, pbm->protocol); |
a60b7031 | 2813 | stream_putw(s, pbm->flow_label); |
c16a0a62 PG |
2814 | } |
2815 | ||
ad4cbda1 | 2816 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2817 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2818 | { |
d62a17ae | 2819 | struct bgp *bgp; |
7076bb2f | 2820 | |
d62a17ae | 2821 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2822 | |
6bfcd0f1 IR |
2823 | /* Send the client registration */ |
2824 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT); | |
2825 | ||
d62a17ae | 2826 | /* At this point, we may or may not have BGP instances configured, but |
2827 | * we're only interested in the default VRF (others wouldn't have learnt | |
2828 | * the VRF from Zebra yet.) | |
2829 | */ | |
2830 | bgp = bgp_get_default(); | |
2831 | if (!bgp) | |
2832 | return; | |
ad4cbda1 | 2833 | |
d62a17ae | 2834 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2835 | |
955bfd98 | 2836 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2837 | bgp_lp_event_zebra_up(); |
955bfd98 | 2838 | |
d62a17ae | 2839 | /* TODO - What if we have peers and networks configured, do we have to |
2840 | * kick-start them? | |
2841 | */ | |
85ef4179 | 2842 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer); |
7076bb2f FL |
2843 | } |
2844 | ||
c44ab6f1 AK |
2845 | static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS) |
2846 | { | |
2847 | esi_t esi; | |
2848 | struct bgp *bgp = NULL; | |
2849 | struct stream *s = NULL; | |
2850 | char buf[ESI_STR_LEN]; | |
2851 | struct in_addr originator_ip; | |
2852 | uint8_t active; | |
74be8313 | 2853 | uint8_t bypass; |
74e2bd89 | 2854 | uint16_t df_pref; |
c44ab6f1 AK |
2855 | |
2856 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2857 | if (!bgp) | |
2858 | return 0; | |
2859 | ||
2860 | s = zclient->ibuf; | |
2861 | stream_get(&esi, s, sizeof(esi_t)); | |
2862 | originator_ip.s_addr = stream_get_ipv4(s); | |
2863 | active = stream_getc(s); | |
74e2bd89 | 2864 | df_pref = stream_getw(s); |
74be8313 | 2865 | bypass = stream_getc(s); |
c44ab6f1 AK |
2866 | |
2867 | if (BGP_DEBUG(zebra, ZEBRA)) | |
74e2bd89 | 2868 | zlog_debug( |
74be8313 AK |
2869 | "Rx add ESI %s originator-ip %pI4 active %u df_pref %u %s", |
2870 | esi_to_str(&esi, buf, sizeof(buf)), &originator_ip, | |
2871 | active, df_pref, bypass ? "bypass" : ""); | |
c44ab6f1 | 2872 | |
a383bfc7 AK |
2873 | frrtrace(5, frr_bgp, evpn_mh_local_es_add_zrecv, &esi, originator_ip, |
2874 | active, bypass, df_pref); | |
2875 | ||
74be8313 AK |
2876 | bgp_evpn_local_es_add(bgp, &esi, originator_ip, active, df_pref, |
2877 | !!bypass); | |
c44ab6f1 AK |
2878 | |
2879 | return 0; | |
2880 | } | |
2881 | ||
2882 | static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS) | |
50f74cf1 | 2883 | { |
2884 | esi_t esi; | |
2885 | struct bgp *bgp = NULL; | |
2886 | struct stream *s = NULL; | |
2887 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2888 | |
2889 | memset(&esi, 0, sizeof(esi_t)); | |
c44ab6f1 AK |
2890 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2891 | if (!bgp) | |
2892 | return 0; | |
2893 | ||
2894 | s = zclient->ibuf; | |
2895 | stream_get(&esi, s, sizeof(esi_t)); | |
2896 | ||
2897 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2898 | zlog_debug("Rx del ESI %s", | |
2899 | esi_to_str(&esi, buf, sizeof(buf))); | |
2900 | ||
a383bfc7 AK |
2901 | frrtrace(1, frr_bgp, evpn_mh_local_es_del_zrecv, &esi); |
2902 | ||
c44ab6f1 AK |
2903 | bgp_evpn_local_es_del(bgp, &esi); |
2904 | ||
2905 | return 0; | |
2906 | } | |
2907 | ||
2908 | static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS) | |
2909 | { | |
2910 | esi_t esi; | |
2911 | vni_t vni; | |
2912 | struct bgp *bgp; | |
2913 | struct stream *s; | |
2914 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2915 | |
2916 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2917 | if (!bgp) | |
2918 | return 0; | |
2919 | ||
2920 | s = zclient->ibuf; | |
2921 | stream_get(&esi, s, sizeof(esi_t)); | |
c44ab6f1 | 2922 | vni = stream_getl(s); |
50f74cf1 | 2923 | |
2924 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c44ab6f1 | 2925 | zlog_debug("Rx %s ESI %s VNI %u", |
3756b9ac IS |
2926 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
2927 | esi_to_str(&esi, buf, sizeof(buf)), vni); | |
50f74cf1 | 2928 | |
a383bfc7 AK |
2929 | if (cmd == ZEBRA_LOCAL_ES_EVI_ADD) { |
2930 | frrtrace(2, frr_bgp, evpn_mh_local_es_evi_add_zrecv, &esi, vni); | |
2931 | ||
c44ab6f1 | 2932 | bgp_evpn_local_es_evi_add(bgp, &esi, vni); |
a383bfc7 AK |
2933 | } else { |
2934 | frrtrace(2, frr_bgp, evpn_mh_local_es_evi_del_zrecv, &esi, vni); | |
2935 | ||
c44ab6f1 | 2936 | bgp_evpn_local_es_evi_del(bgp, &esi, vni); |
a383bfc7 | 2937 | } |
c44ab6f1 | 2938 | |
50f74cf1 | 2939 | return 0; |
2940 | } | |
2941 | ||
121f9dee | 2942 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 2943 | { |
c48d9f5f | 2944 | int filter = 0; |
b67a60d2 | 2945 | vni_t l3vni = 0; |
14e814ea | 2946 | struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} }; |
b67a60d2 | 2947 | struct in_addr originator_ip; |
fe1dc5a3 | 2948 | struct stream *s; |
0483af6e | 2949 | ifindex_t svi_ifindex; |
14e814ea | 2950 | bool is_anycast_mac = false; |
fe1dc5a3 | 2951 | |
6006b807 DA |
2952 | memset(&svi_rmac, 0, sizeof(svi_rmac)); |
2953 | memset(&originator_ip, 0, sizeof(originator_ip)); | |
fe1dc5a3 MK |
2954 | s = zclient->ibuf; |
2955 | l3vni = stream_getl(s); | |
b67a60d2 | 2956 | if (cmd == ZEBRA_L3VNI_ADD) { |
14e814ea | 2957 | stream_get(&svi_rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2958 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2959 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2960 | svi_ifindex = stream_getl(s); |
14e814ea CS |
2961 | stream_get(&vrr_rmac, s, sizeof(struct ethaddr)); |
2962 | is_anycast_mac = stream_getl(s); | |
fe1dc5a3 | 2963 | |
0483af6e | 2964 | if (BGP_DEBUG(zebra, ZEBRA)) |
c0d72166 DS |
2965 | zlog_debug( |
2966 | "Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %pEA vrr-mac %pEA filter %s svi-if %u", | |
2967 | vrf_id_to_name(vrf_id), l3vni, &svi_rmac, | |
2968 | &vrr_rmac, | |
2969 | filter ? "prefix-routes-only" : "none", | |
2970 | svi_ifindex); | |
fe1dc5a3 | 2971 | |
a383bfc7 AK |
2972 | frrtrace(8, frr_bgp, evpn_local_l3vni_add_zrecv, l3vni, vrf_id, |
2973 | &svi_rmac, &vrr_rmac, filter, originator_ip, | |
2974 | svi_ifindex, is_anycast_mac); | |
2975 | ||
14e814ea CS |
2976 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac, |
2977 | originator_ip, filter, svi_ifindex, | |
2978 | is_anycast_mac); | |
0483af6e | 2979 | } else { |
2980 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2981 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2982 | vrf_id_to_name(vrf_id), l3vni); | |
2983 | ||
a383bfc7 AK |
2984 | frrtrace(2, frr_bgp, evpn_local_l3vni_del_zrecv, l3vni, vrf_id); |
2985 | ||
fe1dc5a3 | 2986 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 2987 | } |
fe1dc5a3 MK |
2988 | |
2989 | return 0; | |
2990 | } | |
2991 | ||
121f9dee | 2992 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2993 | { |
d62a17ae | 2994 | struct stream *s; |
2995 | vni_t vni; | |
2996 | struct bgp *bgp; | |
a4d82a8a | 2997 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2998 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 2999 | struct in_addr mcast_grp = {INADDR_ANY}; |
9daa5d47 | 3000 | ifindex_t svi_ifindex = 0; |
d62a17ae | 3001 | |
3002 | s = zclient->ibuf; | |
3003 | vni = stream_getl(s); | |
121f9dee | 3004 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 3005 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 3006 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 3007 | mcast_grp.s_addr = stream_get_ipv4(s); |
9daa5d47 | 3008 | stream_get(&svi_ifindex, s, sizeof(ifindex_t)); |
29c53922 MK |
3009 | } |
3010 | ||
d62a17ae | 3011 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
3012 | if (!bgp) | |
3013 | return 0; | |
3014 | ||
3015 | if (BGP_DEBUG(zebra, ZEBRA)) | |
9daa5d47 AD |
3016 | zlog_debug( |
3017 | "Rx VNI %s VRF %s VNI %u tenant-vrf %s SVI ifindex %u", | |
3018 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", | |
3019 | vrf_id_to_name(vrf_id), vni, | |
3020 | vrf_id_to_name(tenant_vrf_id), svi_ifindex); | |
d62a17ae | 3021 | |
a383bfc7 AK |
3022 | if (cmd == ZEBRA_VNI_ADD) { |
3023 | frrtrace(4, frr_bgp, evpn_local_vni_add_zrecv, vni, vtep_ip, | |
3024 | tenant_vrf_id, mcast_grp); | |
3025 | ||
d62a17ae | 3026 | return bgp_evpn_local_vni_add( |
975a328e DA |
3027 | bgp, vni, |
3028 | vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id, | |
9daa5d47 | 3029 | tenant_vrf_id, mcast_grp, svi_ifindex); |
a383bfc7 AK |
3030 | } else { |
3031 | frrtrace(1, frr_bgp, evpn_local_vni_del_zrecv, vni); | |
3032 | ||
d62a17ae | 3033 | return bgp_evpn_local_vni_del(bgp, vni); |
a383bfc7 | 3034 | } |
128ea8ab | 3035 | } |
3036 | ||
121f9dee | 3037 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 3038 | { |
d62a17ae | 3039 | struct stream *s; |
3040 | vni_t vni; | |
3041 | struct bgp *bgp; | |
3042 | struct ethaddr mac; | |
3043 | struct ipaddr ip; | |
3044 | int ipa_len; | |
f07e1c99 | 3045 | uint8_t flags = 0; |
3046 | uint32_t seqnum = 0; | |
ec0ab544 | 3047 | int state = 0; |
c44ab6f1 AK |
3048 | char buf2[ESI_STR_LEN]; |
3049 | esi_t esi; | |
d62a17ae | 3050 | |
3051 | memset(&ip, 0, sizeof(ip)); | |
3052 | s = zclient->ibuf; | |
3053 | vni = stream_getl(s); | |
28328ea9 | 3054 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 3055 | ipa_len = stream_getl(s); |
3056 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
3057 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 3058 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 3059 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 3060 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 3061 | ipa_len); |
d62a17ae | 3062 | return -1; |
3063 | } | |
3064 | ||
3065 | if (ipa_len) { | |
3066 | ip.ipa_type = | |
3067 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
3068 | stream_get(&ip.ip.addr, s, ipa_len); | |
3069 | } | |
121f9dee | 3070 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 3071 | flags = stream_getc(s); |
3072 | seqnum = stream_getl(s); | |
c44ab6f1 | 3073 | stream_get(&esi, s, sizeof(esi_t)); |
ec0ab544 AK |
3074 | } else { |
3075 | state = stream_getl(s); | |
35fb444b | 3076 | memset(&esi, 0, sizeof(esi_t)); |
f07e1c99 | 3077 | } |
d62a17ae | 3078 | |
3079 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
3080 | if (!bgp) | |
3081 | return 0; | |
3082 | ||
3083 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c0d72166 | 3084 | zlog_debug( |
2dd0dde7 | 3085 | "%u:Recv MACIP %s f 0x%x MAC %pEA IP %pIA VNI %u seq %u state %d ESI %s", |
c0d72166 DS |
3086 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags, |
3087 | &mac, &ip, vni, seqnum, state, | |
3088 | esi_to_str(&esi, buf2, sizeof(buf2))); | |
d62a17ae | 3089 | |
a383bfc7 AK |
3090 | if (cmd == ZEBRA_MACIP_ADD) { |
3091 | frrtrace(6, frr_bgp, evpn_local_macip_add_zrecv, vni, &mac, &ip, | |
3092 | flags, seqnum, &esi); | |
3093 | ||
f07e1c99 | 3094 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
c44ab6f1 | 3095 | flags, seqnum, &esi); |
a383bfc7 AK |
3096 | } else { |
3097 | frrtrace(4, frr_bgp, evpn_local_macip_del_zrecv, vni, &mac, &ip, | |
3098 | state); | |
3099 | ||
ec0ab544 | 3100 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
a383bfc7 | 3101 | } |
128ea8ab | 3102 | } |
6aeb9e78 | 3103 | |
a243d1db | 3104 | static int bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
3105 | { |
3106 | struct stream *s = NULL; | |
3107 | struct bgp *bgp_vrf = NULL; | |
3108 | struct prefix p; | |
31310b25 | 3109 | |
6006b807 | 3110 | memset(&p, 0, sizeof(p)); |
31310b25 MK |
3111 | s = zclient->ibuf; |
3112 | stream_get(&p, s, sizeof(struct prefix)); | |
3113 | ||
3114 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
3115 | if (!bgp_vrf) | |
a243d1db | 3116 | return 0; |
31310b25 MK |
3117 | |
3118 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2dbe669b | 3119 | zlog_debug("Recv prefix %pFX %s on vrf %s", &p, |
31310b25 MK |
3120 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", |
3121 | vrf_id_to_name(vrf_id)); | |
3122 | ||
3123 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
3124 | ||
3125 | if (p.family == AF_INET) | |
d90b788e A |
3126 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
3127 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 3128 | else |
d90b788e A |
3129 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
3130 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
3131 | |
3132 | } else { | |
3133 | if (p.family == AF_INET) | |
d90b788e A |
3134 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
3135 | SAFI_UNICAST); | |
31310b25 | 3136 | else |
d90b788e A |
3137 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
3138 | SAFI_UNICAST); | |
31310b25 | 3139 | } |
a243d1db | 3140 | return 0; |
31310b25 MK |
3141 | } |
3142 | ||
a243d1db | 3143 | static int bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
3144 | { |
3145 | struct stream *s = NULL; | |
3146 | uint8_t response_keep; | |
3147 | uint32_t first; | |
3148 | uint32_t last; | |
aec865e4 FR |
3149 | uint8_t proto; |
3150 | unsigned short instance; | |
955bfd98 PZ |
3151 | |
3152 | s = zclient->ibuf; | |
aec865e4 FR |
3153 | STREAM_GETC(s, proto); |
3154 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
3155 | STREAM_GETC(s, response_keep); |
3156 | STREAM_GETL(s, first); | |
3157 | STREAM_GETL(s, last); | |
3158 | ||
aec865e4 | 3159 | if (zclient->redist_default != proto) { |
e50f7cfd | 3160 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 3161 | proto); |
a243d1db | 3162 | return 0; |
aec865e4 FR |
3163 | } |
3164 | if (zclient->instance != instance) { | |
e50f7cfd | 3165 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 3166 | proto); |
a243d1db | 3167 | return 0; |
aec865e4 FR |
3168 | } |
3169 | ||
955bfd98 PZ |
3170 | if (first > last || |
3171 | first < MPLS_LABEL_UNRESERVED_MIN || | |
3172 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
3173 | ||
e50f7cfd | 3174 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 3175 | __func__, first, last); |
a243d1db | 3176 | return 0; |
955bfd98 PZ |
3177 | } |
3178 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3179 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
3180 | first, last, response_keep); | |
3181 | } | |
3182 | ||
e70e9f8e | 3183 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 | 3184 | |
a243d1db DL |
3185 | return 0; |
3186 | ||
955bfd98 | 3187 | stream_failure: /* for STREAM_GETX */ |
a243d1db | 3188 | return -1; |
955bfd98 PZ |
3189 | } |
3190 | ||
342213ea DS |
3191 | extern struct zebra_privs_t bgpd_privs; |
3192 | ||
138c5a74 DS |
3193 | static int bgp_ifp_create(struct interface *ifp) |
3194 | { | |
ef7bd2a3 DS |
3195 | struct bgp *bgp; |
3196 | ||
3197 | if (BGP_DEBUG(zebra, ZEBRA)) | |
096f7609 IR |
3198 | zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf->vrf_id, |
3199 | ifp->name); | |
ef7bd2a3 | 3200 | |
096f7609 | 3201 | bgp = ifp->vrf->info; |
ef7bd2a3 DS |
3202 | if (!bgp) |
3203 | return 0; | |
3204 | ||
3205 | bgp_mac_add_mac_entry(ifp); | |
3206 | ||
3207 | bgp_update_interface_nbrs(bgp, ifp, ifp); | |
0d020cd6 | 3208 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
138c5a74 DS |
3209 | return 0; |
3210 | } | |
3211 | ||
a243d1db | 3212 | static int bgp_zebra_process_srv6_locator_chunk(ZAPI_CALLBACK_ARGS) |
a0281b2e HS |
3213 | { |
3214 | struct stream *s = NULL; | |
7de4c885 HS |
3215 | struct bgp *bgp = bgp_get_default(); |
3216 | struct listnode *node; | |
1c21a234 NM |
3217 | struct srv6_locator_chunk *c; |
3218 | struct srv6_locator_chunk *chunk = srv6_locator_chunk_alloc(); | |
a0281b2e HS |
3219 | |
3220 | s = zclient->ibuf; | |
1c21a234 | 3221 | zapi_srv6_locator_chunk_decode(s, chunk); |
a0281b2e | 3222 | |
1c21a234 | 3223 | if (strcmp(bgp->srv6_locator_name, chunk->locator_name) != 0) { |
3a0220e4 | 3224 | zlog_err("%s: Locator name unmatch %s:%s", __func__, |
1c21a234 | 3225 | bgp->srv6_locator_name, chunk->locator_name); |
69467313 | 3226 | srv6_locator_chunk_free(&chunk); |
a243d1db | 3227 | return 0; |
a0281b2e HS |
3228 | } |
3229 | ||
a0281b2e | 3230 | for (ALL_LIST_ELEMENTS_RO(bgp->srv6_locator_chunks, node, c)) { |
1c21a234 | 3231 | if (!prefix_cmp(&c->prefix, &chunk->prefix)) { |
69467313 | 3232 | srv6_locator_chunk_free(&chunk); |
a243d1db | 3233 | return 0; |
1c21a234 | 3234 | } |
a0281b2e HS |
3235 | } |
3236 | ||
3237 | listnode_add(bgp->srv6_locator_chunks, chunk); | |
3238 | vpn_leak_postchange_all(); | |
a243d1db | 3239 | return 0; |
a0281b2e HS |
3240 | } |
3241 | ||
d79ff732 HS |
3242 | static int bgp_zebra_process_srv6_locator_add(ZAPI_CALLBACK_ARGS) |
3243 | { | |
3244 | struct srv6_locator loc = {}; | |
3245 | struct bgp *bgp = bgp_get_default(); | |
3246 | const char *loc_name = bgp->srv6_locator_name; | |
3247 | ||
3248 | if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0) | |
3249 | return -1; | |
3250 | ||
3251 | if (!bgp || !bgp->srv6_enabled) | |
3252 | return 0; | |
3253 | ||
3254 | if (bgp_zebra_srv6_manager_get_locator_chunk(loc_name) < 0) | |
3255 | return -1; | |
3256 | ||
3257 | return 0; | |
3258 | } | |
3259 | ||
3260 | static int bgp_zebra_process_srv6_locator_delete(ZAPI_CALLBACK_ARGS) | |
3261 | { | |
3262 | struct srv6_locator loc = {}; | |
3263 | struct bgp *bgp = bgp_get_default(); | |
3264 | struct listnode *node, *nnode; | |
bee2e7d0 | 3265 | struct srv6_locator_chunk *chunk, *tovpn_sid_locator; |
d79ff732 HS |
3266 | struct bgp_srv6_function *func; |
3267 | struct bgp *bgp_vrf; | |
bee2e7d0 | 3268 | struct in6_addr *tovpn_sid; |
d79ff732 HS |
3269 | struct prefix_ipv6 tmp_prefi; |
3270 | ||
3271 | if (zapi_srv6_locator_decode(zclient->ibuf, &loc) < 0) | |
3272 | return -1; | |
3273 | ||
3274 | // refresh chunks | |
3275 | for (ALL_LIST_ELEMENTS(bgp->srv6_locator_chunks, node, nnode, chunk)) | |
3276 | if (prefix_match((struct prefix *)&loc.prefix, | |
03852f67 | 3277 | (struct prefix *)&chunk->prefix)) { |
d79ff732 | 3278 | listnode_delete(bgp->srv6_locator_chunks, chunk); |
69467313 | 3279 | srv6_locator_chunk_free(&chunk); |
03852f67 | 3280 | } |
d79ff732 HS |
3281 | |
3282 | // refresh functions | |
3283 | for (ALL_LIST_ELEMENTS(bgp->srv6_functions, node, nnode, func)) { | |
3284 | tmp_prefi.family = AF_INET6; | |
3285 | tmp_prefi.prefixlen = 128; | |
3286 | tmp_prefi.prefix = func->sid; | |
3287 | if (prefix_match((struct prefix *)&loc.prefix, | |
bda15542 | 3288 | (struct prefix *)&tmp_prefi)) { |
d79ff732 | 3289 | listnode_delete(bgp->srv6_functions, func); |
bda15542 CS |
3290 | XFREE(MTYPE_BGP_SRV6_FUNCTION, func); |
3291 | } | |
d79ff732 HS |
3292 | } |
3293 | ||
3294 | // refresh tovpn_sid | |
3295 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp_vrf)) { | |
3296 | if (bgp_vrf->inst_type != BGP_INSTANCE_TYPE_VRF) | |
3297 | continue; | |
3298 | ||
3299 | // refresh vpnv4 tovpn_sid | |
3300 | tovpn_sid = bgp_vrf->vpn_policy[AFI_IP].tovpn_sid; | |
3301 | if (tovpn_sid) { | |
3302 | tmp_prefi.family = AF_INET6; | |
3303 | tmp_prefi.prefixlen = 128; | |
3304 | tmp_prefi.prefix = *tovpn_sid; | |
3305 | if (prefix_match((struct prefix *)&loc.prefix, | |
3306 | (struct prefix *)&tmp_prefi)) | |
3307 | XFREE(MTYPE_BGP_SRV6_SID, | |
3308 | bgp_vrf->vpn_policy[AFI_IP].tovpn_sid); | |
3309 | } | |
3310 | ||
3311 | // refresh vpnv6 tovpn_sid | |
3312 | tovpn_sid = bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid; | |
3313 | if (tovpn_sid) { | |
3314 | tmp_prefi.family = AF_INET6; | |
3315 | tmp_prefi.prefixlen = 128; | |
3316 | tmp_prefi.prefix = *tovpn_sid; | |
3317 | if (prefix_match((struct prefix *)&loc.prefix, | |
3318 | (struct prefix *)&tmp_prefi)) | |
3319 | XFREE(MTYPE_BGP_SRV6_SID, | |
3320 | bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid); | |
3321 | } | |
527588aa CS |
3322 | |
3323 | /* refresh per-vrf tovpn_sid */ | |
3324 | tovpn_sid = bgp_vrf->tovpn_sid; | |
3325 | if (tovpn_sid) { | |
3326 | tmp_prefi.family = AF_INET6; | |
3327 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
3328 | tmp_prefi.prefix = *tovpn_sid; | |
3329 | if (prefix_match((struct prefix *)&loc.prefix, | |
3330 | (struct prefix *)&tmp_prefi)) | |
3331 | XFREE(MTYPE_BGP_SRV6_SID, bgp_vrf->tovpn_sid); | |
3332 | } | |
d79ff732 HS |
3333 | } |
3334 | ||
3335 | vpn_leak_postchange_all(); | |
f8e9c702 CS |
3336 | |
3337 | /* refresh tovpn_sid_locator */ | |
3338 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp_vrf)) { | |
3339 | if (bgp_vrf->inst_type != BGP_INSTANCE_TYPE_VRF) | |
3340 | continue; | |
3341 | ||
3342 | /* refresh vpnv4 tovpn_sid_locator */ | |
3343 | tovpn_sid_locator = | |
3344 | bgp_vrf->vpn_policy[AFI_IP].tovpn_sid_locator; | |
3345 | if (tovpn_sid_locator) { | |
3346 | tmp_prefi.family = AF_INET6; | |
3347 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
bee2e7d0 | 3348 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; |
f8e9c702 | 3349 | if (prefix_match((struct prefix *)&loc.prefix, |
a1d5e05f | 3350 | (struct prefix *)&tmp_prefi)) |
69467313 CS |
3351 | srv6_locator_chunk_free( |
3352 | &bgp_vrf->vpn_policy[AFI_IP] | |
3353 | .tovpn_sid_locator); | |
f8e9c702 CS |
3354 | } |
3355 | ||
3356 | /* refresh vpnv6 tovpn_sid_locator */ | |
3357 | tovpn_sid_locator = | |
3358 | bgp_vrf->vpn_policy[AFI_IP6].tovpn_sid_locator; | |
3359 | if (tovpn_sid_locator) { | |
3360 | tmp_prefi.family = AF_INET6; | |
3361 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
bee2e7d0 | 3362 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; |
f8e9c702 | 3363 | if (prefix_match((struct prefix *)&loc.prefix, |
a1d5e05f | 3364 | (struct prefix *)&tmp_prefi)) |
69467313 CS |
3365 | srv6_locator_chunk_free( |
3366 | &bgp_vrf->vpn_policy[AFI_IP6] | |
3367 | .tovpn_sid_locator); | |
f8e9c702 | 3368 | } |
527588aa CS |
3369 | |
3370 | /* refresh per-vrf tovpn_sid_locator */ | |
3371 | tovpn_sid_locator = bgp_vrf->tovpn_sid_locator; | |
3372 | if (tovpn_sid_locator) { | |
3373 | tmp_prefi.family = AF_INET6; | |
3374 | tmp_prefi.prefixlen = IPV6_MAX_BITLEN; | |
3375 | tmp_prefi.prefix = tovpn_sid_locator->prefix.prefix; | |
3376 | if (prefix_match((struct prefix *)&loc.prefix, | |
3377 | (struct prefix *)&tmp_prefi)) | |
69467313 CS |
3378 | srv6_locator_chunk_free( |
3379 | &bgp_vrf->tovpn_sid_locator); | |
527588aa | 3380 | } |
f8e9c702 CS |
3381 | } |
3382 | ||
d79ff732 HS |
3383 | return 0; |
3384 | } | |
3385 | ||
a243d1db DL |
3386 | static zclient_handler *const bgp_handlers[] = { |
3387 | [ZEBRA_ROUTER_ID_UPDATE] = bgp_router_id_update, | |
3388 | [ZEBRA_INTERFACE_ADDRESS_ADD] = bgp_interface_address_add, | |
3389 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = bgp_interface_address_delete, | |
3390 | [ZEBRA_INTERFACE_NBR_ADDRESS_ADD] = bgp_interface_nbr_address_add, | |
3391 | [ZEBRA_INTERFACE_NBR_ADDRESS_DELETE] = bgp_interface_nbr_address_delete, | |
3392 | [ZEBRA_INTERFACE_VRF_UPDATE] = bgp_interface_vrf_update, | |
3393 | [ZEBRA_REDISTRIBUTE_ROUTE_ADD] = zebra_read_route, | |
3394 | [ZEBRA_REDISTRIBUTE_ROUTE_DEL] = zebra_read_route, | |
3395 | [ZEBRA_NEXTHOP_UPDATE] = bgp_read_nexthop_update, | |
3396 | [ZEBRA_FEC_UPDATE] = bgp_read_fec_update, | |
3397 | [ZEBRA_LOCAL_ES_ADD] = bgp_zebra_process_local_es_add, | |
3398 | [ZEBRA_LOCAL_ES_DEL] = bgp_zebra_process_local_es_del, | |
3399 | [ZEBRA_VNI_ADD] = bgp_zebra_process_local_vni, | |
3400 | [ZEBRA_LOCAL_ES_EVI_ADD] = bgp_zebra_process_local_es_evi, | |
3401 | [ZEBRA_LOCAL_ES_EVI_DEL] = bgp_zebra_process_local_es_evi, | |
3402 | [ZEBRA_VNI_DEL] = bgp_zebra_process_local_vni, | |
3403 | [ZEBRA_MACIP_ADD] = bgp_zebra_process_local_macip, | |
3404 | [ZEBRA_MACIP_DEL] = bgp_zebra_process_local_macip, | |
3405 | [ZEBRA_L3VNI_ADD] = bgp_zebra_process_local_l3vni, | |
3406 | [ZEBRA_L3VNI_DEL] = bgp_zebra_process_local_l3vni, | |
3407 | [ZEBRA_IP_PREFIX_ROUTE_ADD] = bgp_zebra_process_local_ip_prefix, | |
3408 | [ZEBRA_IP_PREFIX_ROUTE_DEL] = bgp_zebra_process_local_ip_prefix, | |
3409 | [ZEBRA_GET_LABEL_CHUNK] = bgp_zebra_process_label_chunk, | |
3410 | [ZEBRA_RULE_NOTIFY_OWNER] = rule_notify_owner, | |
3411 | [ZEBRA_IPSET_NOTIFY_OWNER] = ipset_notify_owner, | |
3412 | [ZEBRA_IPSET_ENTRY_NOTIFY_OWNER] = ipset_entry_notify_owner, | |
3413 | [ZEBRA_IPTABLE_NOTIFY_OWNER] = iptable_notify_owner, | |
3414 | [ZEBRA_ROUTE_NOTIFY_OWNER] = bgp_zebra_route_notify_owner, | |
3415 | [ZEBRA_SRV6_LOCATOR_ADD] = bgp_zebra_process_srv6_locator_add, | |
3416 | [ZEBRA_SRV6_LOCATOR_DELETE] = bgp_zebra_process_srv6_locator_delete, | |
3417 | [ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK] = | |
3418 | bgp_zebra_process_srv6_locator_chunk, | |
3419 | }; | |
3420 | ||
4cd690ae PG |
3421 | static int bgp_if_new_hook(struct interface *ifp) |
3422 | { | |
3423 | struct bgp_interface *iifp; | |
3424 | ||
3425 | if (ifp->info) | |
3426 | return 0; | |
3427 | iifp = XCALLOC(MTYPE_BGP_IF_INFO, sizeof(struct bgp_interface)); | |
3428 | ifp->info = iifp; | |
3429 | ||
3430 | return 0; | |
3431 | } | |
3432 | ||
3433 | static int bgp_if_delete_hook(struct interface *ifp) | |
3434 | { | |
3435 | XFREE(MTYPE_BGP_IF_INFO, ifp->info); | |
3436 | return 0; | |
3437 | } | |
3438 | ||
3439 | void bgp_if_init(void) | |
3440 | { | |
3441 | /* Initialize Zebra interface data structure. */ | |
3442 | hook_register_prio(if_add, 0, bgp_if_new_hook); | |
3443 | hook_register_prio(if_del, 0, bgp_if_delete_hook); | |
3444 | } | |
3445 | ||
f533be73 | 3446 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 3447 | { |
d62a17ae | 3448 | zclient_num_connects = 0; |
3449 | ||
138c5a74 DS |
3450 | if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up, |
3451 | bgp_ifp_down, bgp_ifp_destroy); | |
3452 | ||
d62a17ae | 3453 | /* Set default values. */ |
a243d1db DL |
3454 | zclient = zclient_new(master, &zclient_options_default, bgp_handlers, |
3455 | array_size(bgp_handlers)); | |
342213ea | 3456 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 3457 | zclient->zebra_connected = bgp_zebra_connected; |
f533be73 | 3458 | zclient->instance = instance; |
718e3744 | 3459 | } |
bb86c601 | 3460 | |
d62a17ae | 3461 | void bgp_zebra_destroy(void) |
bb86c601 | 3462 | { |
d62a17ae | 3463 | if (zclient == NULL) |
3464 | return; | |
3465 | zclient_stop(zclient); | |
3466 | zclient_free(zclient); | |
3467 | zclient = NULL; | |
bb86c601 | 3468 | } |
afbb1c59 | 3469 | |
d62a17ae | 3470 | int bgp_zebra_num_connects(void) |
afbb1c59 | 3471 | { |
d62a17ae | 3472 | return zclient_num_connects; |
afbb1c59 | 3473 | } |
30d50e6d | 3474 | |
6cfe5d15 PG |
3475 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
3476 | struct bgp_pbr_rule *pbr, | |
3477 | bool install) | |
30d50e6d PG |
3478 | { |
3479 | struct stream *s; | |
3480 | ||
6cfe5d15 | 3481 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 3482 | return; |
6cfe5d15 PG |
3483 | if (pbr && pbr->install_in_progress) |
3484 | return; | |
3485 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3486 | if (pbr) | |
15569c58 | 3487 | zlog_debug("%s: table %d (ip rule) %d", __func__, |
6cfe5d15 PG |
3488 | pbra->table_id, install); |
3489 | else | |
15569c58 | 3490 | zlog_debug("%s: table %d fwmark %d %d", __func__, |
6cfe5d15 PG |
3491 | pbra->table_id, pbra->fwmark, install); |
3492 | } | |
30d50e6d PG |
3493 | s = zclient->obuf; |
3494 | stream_reset(s); | |
3495 | ||
3496 | zclient_create_header(s, | |
3497 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
3498 | VRF_DEFAULT); | |
3499 | stream_putl(s, 1); /* send one pbr action */ | |
3500 | ||
6cfe5d15 | 3501 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
3502 | |
3503 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e DS |
3504 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) |
3505 | && install) { | |
6cfe5d15 PG |
3506 | if (!pbr) |
3507 | pbra->install_in_progress = true; | |
3508 | else | |
3509 | pbr->install_in_progress = true; | |
3510 | } | |
30d50e6d PG |
3511 | } |
3512 | ||
3513 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
3514 | { | |
3515 | struct stream *s; | |
3516 | ||
3517 | if (pbrim->install_in_progress) | |
3518 | return; | |
f0936054 | 3519 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3520 | zlog_debug("%s: name %s type %d %d, ID %u", __func__, |
3521 | pbrim->ipset_name, pbrim->type, install, | |
3522 | pbrim->unique); | |
30d50e6d PG |
3523 | s = zclient->obuf; |
3524 | stream_reset(s); | |
3525 | ||
3526 | zclient_create_header(s, | |
3527 | install ? ZEBRA_IPSET_CREATE : | |
3528 | ZEBRA_IPSET_DESTROY, | |
3529 | VRF_DEFAULT); | |
3530 | ||
3531 | stream_putl(s, 1); /* send one pbr action */ | |
3532 | ||
3533 | bgp_encode_pbr_ipset_match(s, pbrim); | |
3534 | ||
3535 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3536 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3537 | pbrim->install_in_progress = true; |
3538 | } | |
3539 | ||
3540 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
3541 | bool install) | |
3542 | { | |
3543 | struct stream *s; | |
3544 | ||
3545 | if (pbrime->install_in_progress) | |
3546 | return; | |
f0936054 | 3547 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3548 | zlog_debug("%s: name %s %d %d, ID %u", __func__, |
3549 | pbrime->backpointer->ipset_name, pbrime->unique, | |
3550 | install, pbrime->unique); | |
30d50e6d PG |
3551 | s = zclient->obuf; |
3552 | stream_reset(s); | |
3553 | ||
3554 | zclient_create_header(s, | |
3555 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
3556 | ZEBRA_IPSET_ENTRY_DELETE, | |
3557 | VRF_DEFAULT); | |
3558 | ||
3559 | stream_putl(s, 1); /* send one pbr action */ | |
3560 | ||
3561 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
3562 | ||
3563 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3564 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3565 | pbrime->install_in_progress = true; |
3566 | } | |
c16a0a62 | 3567 | |
8f242187 PG |
3568 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s, |
3569 | uint8_t family) | |
4762c213 PG |
3570 | { |
3571 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3572 | struct bgp_pbr_interface_head *head; | |
3573 | struct bgp_pbr_interface *pbr_if; | |
3574 | struct interface *ifp; | |
3575 | ||
3576 | if (!bgp_pbr_cfg) | |
3577 | return; | |
8f242187 PG |
3578 | if (family == AF_INET) |
3579 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3580 | else | |
3581 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3582 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3583 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); |
4762c213 PG |
3584 | if (ifp) |
3585 | stream_putl(s, ifp->ifindex); | |
3586 | } | |
3587 | } | |
3588 | ||
8f242187 | 3589 | static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family) |
4762c213 PG |
3590 | { |
3591 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3592 | struct bgp_pbr_interface_head *head; | |
3593 | struct bgp_pbr_interface *pbr_if; | |
3594 | int cnt = 0; | |
3595 | ||
3596 | if (!bgp_pbr_cfg) | |
3597 | return 0; | |
8f242187 PG |
3598 | if (family == AF_INET) |
3599 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3600 | else | |
3601 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3602 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3603 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) |
4762c213 PG |
3604 | cnt++; |
3605 | } | |
3606 | return cnt; | |
3607 | } | |
3608 | ||
c16a0a62 PG |
3609 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
3610 | struct bgp_pbr_match *pbm, | |
3611 | bool install) | |
3612 | { | |
3613 | struct stream *s; | |
b5c40105 | 3614 | int ret = 0; |
4762c213 | 3615 | int nb_interface; |
c16a0a62 PG |
3616 | |
3617 | if (pbm->install_iptable_in_progress) | |
3618 | return; | |
f0936054 | 3619 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3620 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__, |
3621 | pbm->ipset_name, pbm->type, pba->fwmark, install, | |
88055124 | 3622 | pbm->unique2); |
c16a0a62 PG |
3623 | s = zclient->obuf; |
3624 | stream_reset(s); | |
3625 | ||
3626 | zclient_create_header(s, | |
3627 | install ? ZEBRA_IPTABLE_ADD : | |
3628 | ZEBRA_IPTABLE_DELETE, | |
3629 | VRF_DEFAULT); | |
3630 | ||
3631 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
8f242187 | 3632 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family); |
4762c213 PG |
3633 | stream_putl(s, nb_interface); |
3634 | if (nb_interface) | |
8f242187 | 3635 | bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family); |
c16a0a62 | 3636 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
3637 | ret = zclient_send_message(zclient); |
3638 | if (install) { | |
8a3f8f2e | 3639 | if (ret != ZCLIENT_SEND_FAILURE) |
b5c40105 PG |
3640 | pba->refcnt++; |
3641 | else | |
3642 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 3643 | } |
c16a0a62 | 3644 | } |
f7df1907 PG |
3645 | |
3646 | /* inject in table <table_id> a default route to: | |
3647 | * - if nexthop IP is present : to this nexthop | |
3648 | * - if vrf is different from local : to the matching VRF | |
3649 | */ | |
3650 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
3651 | afi_t afi, uint32_t table_id, bool announce) | |
3652 | { | |
3653 | struct zapi_nexthop *api_nh; | |
3654 | struct zapi_route api; | |
3655 | struct prefix p; | |
3656 | ||
f01e580f PG |
3657 | if (!nh || (nh->type != NEXTHOP_TYPE_IPV4 |
3658 | && nh->type != NEXTHOP_TYPE_IPV6) | |
f7df1907 PG |
3659 | || nh->vrf_id == VRF_UNKNOWN) |
3660 | return; | |
7afeaffa PG |
3661 | |
3662 | /* in vrf-lite, no default route has to be announced | |
3663 | * the table id of vrf is directly used to divert traffic | |
3664 | */ | |
3665 | if (!vrf_is_backend_netns() && bgp->vrf_id != nh->vrf_id) | |
3666 | return; | |
3667 | ||
6006b807 | 3668 | memset(&p, 0, sizeof(p)); |
f01e580f | 3669 | if (afi != AFI_IP && afi != AFI_IP6) |
f7df1907 | 3670 | return; |
f01e580f | 3671 | p.family = afi2family(afi); |
f7df1907 PG |
3672 | memset(&api, 0, sizeof(api)); |
3673 | api.vrf_id = bgp->vrf_id; | |
3674 | api.type = ZEBRA_ROUTE_BGP; | |
3675 | api.safi = SAFI_UNICAST; | |
3676 | api.prefix = p; | |
3677 | api.tableid = table_id; | |
3678 | api.nexthop_num = 1; | |
3679 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
3680 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
3681 | api_nh = &api.nexthops[0]; | |
3682 | ||
38a8c751 DS |
3683 | api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT; |
3684 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
3685 | ||
f7df1907 | 3686 | /* redirect IP */ |
f01e580f | 3687 | if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) { |
f7df1907 PG |
3688 | api_nh->vrf_id = nh->vrf_id; |
3689 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
3690 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
3691 | ||
f7df1907 | 3692 | if (BGP_DEBUG(zebra, ZEBRA)) |
07380148 DA |
3693 | zlog_debug( |
3694 | "BGP: %s default route to %pI4 table %d (redirect IP)", | |
3695 | announce ? "adding" : "withdrawing", | |
3696 | &nh->gate.ipv4, table_id); | |
3697 | ||
f01e580f PG |
3698 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD |
3699 | : ZEBRA_ROUTE_DELETE, | |
3700 | zclient, &api); | |
3701 | } else if (afi == AFI_IP6 && | |
3702 | memcmp(&nh->gate.ipv6, | |
3703 | &in6addr_any, sizeof(struct in6_addr))) { | |
f01e580f PG |
3704 | api_nh->vrf_id = nh->vrf_id; |
3705 | memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, | |
3706 | sizeof(struct in6_addr)); | |
3707 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
3708 | ||
f01e580f | 3709 | if (BGP_DEBUG(zebra, ZEBRA)) |
07380148 DA |
3710 | zlog_debug( |
3711 | "BGP: %s default route to %pI6 table %d (redirect IP)", | |
3712 | announce ? "adding" : "withdrawing", | |
3713 | &nh->gate.ipv6, table_id); | |
3714 | ||
f7df1907 PG |
3715 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD |
3716 | : ZEBRA_ROUTE_DELETE, | |
3717 | zclient, &api); | |
3718 | } else if (nh->vrf_id != bgp->vrf_id) { | |
3719 | struct vrf *vrf; | |
eb4244f8 | 3720 | struct interface *ifp; |
f7df1907 | 3721 | |
eb4244f8 | 3722 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
3723 | if (!vrf) |
3724 | return; | |
eb4244f8 PG |
3725 | /* create default route with interface <VRF> |
3726 | * with nexthop-vrf <VRF> | |
f7df1907 | 3727 | */ |
de4f1a66 | 3728 | ifp = if_lookup_by_name_vrf(vrf->name, vrf); |
eb4244f8 PG |
3729 | if (!ifp) |
3730 | return; | |
3731 | api_nh->vrf_id = nh->vrf_id; | |
3732 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
3733 | api_nh->ifindex = ifp->ifindex; | |
3734 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3735 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
3736 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
3737 | vrf->name, table_id); |
3738 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3739 | : ZEBRA_ROUTE_DELETE, | |
3740 | zclient, &api); | |
f7df1907 PG |
3741 | return; |
3742 | } | |
3743 | } | |
85ef4179 | 3744 | |
3745 | /* Send capabilities to RIB */ | |
3746 | int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable) | |
3747 | { | |
3748 | struct zapi_cap api; | |
3749 | int ret = BGP_GR_SUCCESS; | |
3750 | ||
3751 | if (zclient == NULL) { | |
3752 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3753 | zlog_debug("zclient invalid"); | |
3754 | return BGP_GR_FAILURE; | |
3755 | } | |
3756 | ||
3757 | /* Check if the client is connected */ | |
3758 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3759 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3760 | zlog_debug("client not connected"); | |
3761 | return BGP_GR_FAILURE; | |
3762 | } | |
3763 | ||
3764 | /* Check if capability is already sent. If the flag force is set | |
3765 | * send the capability since this can be initial bgp configuration | |
3766 | */ | |
6006b807 | 3767 | memset(&api, 0, sizeof(api)); |
85ef4179 | 3768 | if (disable) { |
3769 | api.cap = ZEBRA_CLIENT_GR_DISABLE; | |
3770 | api.vrf_id = bgp->vrf_id; | |
3771 | } else { | |
3772 | api.cap = ZEBRA_CLIENT_GR_CAPABILITIES; | |
3773 | api.stale_removal_time = bgp->rib_stale_time; | |
3774 | api.vrf_id = bgp->vrf_id; | |
3775 | } | |
3776 | ||
36235319 | 3777 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3778 | == ZCLIENT_SEND_FAILURE) { |
2ba1fe69 | 3779 | zlog_err("error sending capability"); |
85ef4179 | 3780 | ret = BGP_GR_FAILURE; |
3781 | } else { | |
3782 | if (disable) | |
3783 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; | |
3784 | else | |
3785 | bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE; | |
3786 | ||
3787 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3788 | zlog_debug("send capabilty success"); | |
3789 | ret = BGP_GR_SUCCESS; | |
3790 | } | |
3791 | return ret; | |
3792 | } | |
3793 | ||
3794 | /* Send route update pesding or completed status to RIB for the | |
3795 | * specific AFI, SAFI | |
3796 | */ | |
3797 | int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type) | |
3798 | { | |
2ba1fe69 | 3799 | struct zapi_cap api = {0}; |
85ef4179 | 3800 | |
3801 | if (zclient == NULL) { | |
3802 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2ba1fe69 | 3803 | zlog_debug("zclient == NULL, invalid"); |
85ef4179 | 3804 | return BGP_GR_FAILURE; |
3805 | } | |
3806 | ||
3807 | /* Check if the client is connected */ | |
3808 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3809 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3810 | zlog_debug("client not connected"); | |
3811 | return BGP_GR_FAILURE; | |
3812 | } | |
3813 | ||
85ef4179 | 3814 | api.afi = afi; |
3815 | api.safi = safi; | |
3816 | api.vrf_id = vrf_id; | |
3817 | api.cap = type; | |
3818 | ||
36235319 | 3819 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3820 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3821 | if (BGP_DEBUG(zebra, ZEBRA)) |
3822 | zlog_debug("error sending capability"); | |
3823 | return BGP_GR_FAILURE; | |
3824 | } | |
3825 | return BGP_GR_SUCCESS; | |
3826 | } | |
3827 | ||
3828 | ||
85ef4179 | 3829 | /* Send RIB stale timer update */ |
3830 | int bgp_zebra_stale_timer_update(struct bgp *bgp) | |
3831 | { | |
3832 | struct zapi_cap api; | |
3833 | ||
3834 | if (zclient == NULL) { | |
3835 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3836 | zlog_debug("zclient invalid"); | |
3837 | return BGP_GR_FAILURE; | |
3838 | } | |
3839 | ||
3840 | /* Check if the client is connected */ | |
3841 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3842 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3843 | zlog_debug("client not connected"); | |
3844 | return BGP_GR_FAILURE; | |
3845 | } | |
3846 | ||
6006b807 | 3847 | memset(&api, 0, sizeof(api)); |
85ef4179 | 3848 | api.cap = ZEBRA_CLIENT_RIB_STALE_TIME; |
3849 | api.stale_removal_time = bgp->rib_stale_time; | |
3850 | api.vrf_id = bgp->vrf_id; | |
36235319 | 3851 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3852 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3853 | if (BGP_DEBUG(zebra, ZEBRA)) |
3854 | zlog_debug("error sending capability"); | |
3855 | return BGP_GR_FAILURE; | |
3856 | } | |
3857 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3858 | zlog_debug("send capabilty success"); | |
3859 | return BGP_GR_SUCCESS; | |
3860 | } | |
a0281b2e HS |
3861 | |
3862 | int bgp_zebra_srv6_manager_get_locator_chunk(const char *name) | |
3863 | { | |
3864 | return srv6_manager_get_locator_chunk(zclient, name); | |
3865 | } | |
0249b8b6 HS |
3866 | |
3867 | int bgp_zebra_srv6_manager_release_locator_chunk(const char *name) | |
3868 | { | |
3869 | return srv6_manager_release_locator_chunk(zclient, name); | |
3870 | } |