]>
Commit | Line | Data |
---|---|---|
718e3744 | 1 | /* zebra client |
896014f4 DL |
2 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "stream.h" | |
25 | #include "network.h" | |
26 | #include "prefix.h" | |
27 | #include "log.h" | |
28 | #include "sockunion.h" | |
29 | #include "zclient.h" | |
30 | #include "routemap.h" | |
31 | #include "thread.h" | |
3f9c7369 | 32 | #include "queue.h" |
6e919709 | 33 | #include "memory.h" |
856ca177 | 34 | #include "lib/json.h" |
2376c3f2 | 35 | #include "lib/bfd.h" |
039f3a34 | 36 | #include "filter.h" |
cd1964ff | 37 | #include "mpls.h" |
128ea8ab | 38 | #include "vxlan.h" |
6cfe5d15 | 39 | #include "pbr.h" |
718e3744 | 40 | |
41 | #include "bgpd/bgpd.h" | |
42 | #include "bgpd/bgp_route.h" | |
43 | #include "bgpd/bgp_attr.h" | |
44 | #include "bgpd/bgp_nexthop.h" | |
45 | #include "bgpd/bgp_zebra.h" | |
46 | #include "bgpd/bgp_fsm.h" | |
a39275d7 | 47 | #include "bgpd/bgp_debug.h" |
14454c9f | 48 | #include "bgpd/bgp_errors.h" |
8196f13d | 49 | #include "bgpd/bgp_mpath.h" |
fb018d25 | 50 | #include "bgpd/bgp_nexthop.h" |
ffd0c037 | 51 | #include "bgpd/bgp_nht.h" |
8c4f6381 | 52 | #include "bgpd/bgp_bfd.h" |
cd1964ff | 53 | #include "bgpd/bgp_label.h" |
49e5a4a0 | 54 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 55 | #include "bgpd/rfapi/rfapi_backend.h" |
56 | #include "bgpd/rfapi/vnc_export_bgp.h" | |
65efcfce | 57 | #endif |
128ea8ab | 58 | #include "bgpd/bgp_evpn.h" |
ddb5b488 | 59 | #include "bgpd/bgp_mplsvpn.h" |
955bfd98 | 60 | #include "bgpd/bgp_labelpool.h" |
30d50e6d | 61 | #include "bgpd/bgp_pbr.h" |
0b9d9cd0 | 62 | #include "bgpd/bgp_evpn_private.h" |
c44ab6f1 | 63 | #include "bgpd/bgp_evpn_mh.h" |
6a69ac51 | 64 | #include "bgpd/bgp_mac.h" |
6b0655a2 | 65 | |
718e3744 | 66 | /* All information about zebra. */ |
228da428 | 67 | struct zclient *zclient = NULL; |
718e3744 | 68 | |
ad4cbda1 | 69 | /* Can we install into zebra? */ |
3dc339cd | 70 | static inline bool bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 71 | { |
d62a17ae | 72 | if (zclient->sock <= 0) |
3dc339cd | 73 | return false; |
ad4cbda1 | 74 | |
bb4ef1ae | 75 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
15569c58 DA |
76 | zlog_debug( |
77 | "%s: No zebra instance to talk to, not installing information", | |
78 | __func__); | |
3dc339cd | 79 | return false; |
bb4ef1ae | 80 | } |
ad4cbda1 | 81 | |
3dc339cd | 82 | return true; |
ad4cbda1 | 83 | } |
84 | ||
afbb1c59 LB |
85 | int zclient_num_connects; |
86 | ||
18a6dce6 | 87 | /* Router-id update message from zebra. */ |
121f9dee | 88 | static int bgp_router_id_update(ZAPI_CALLBACK_ARGS) |
718e3744 | 89 | { |
d62a17ae | 90 | struct prefix router_id; |
718e3744 | 91 | |
d62a17ae | 92 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 93 | |
2dbe669b DA |
94 | if (BGP_DEBUG(zebra, ZEBRA)) |
95 | zlog_debug("Rx Router Id update VRF %u Id %pFX", vrf_id, | |
96 | &router_id); | |
a39275d7 | 97 | |
d62a17ae | 98 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
99 | return 0; | |
718e3744 | 100 | } |
101 | ||
fb018d25 | 102 | /* Nexthop update message from zebra. */ |
121f9dee | 103 | static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS) |
fb018d25 | 104 | { |
121f9dee | 105 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 106 | return 0; |
078430f6 DS |
107 | } |
108 | ||
121f9dee | 109 | static int bgp_read_import_check_update(ZAPI_CALLBACK_ARGS) |
078430f6 | 110 | { |
121f9dee | 111 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 112 | return 0; |
fb018d25 DS |
113 | } |
114 | ||
4a04e5f7 | 115 | /* Set or clear interface on which unnumbered neighbor is configured. This |
116 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
117 | * interface. | |
118 | */ | |
d62a17ae | 119 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
120 | struct interface *upd_ifp) | |
4a04e5f7 | 121 | { |
d62a17ae | 122 | struct listnode *node, *nnode; |
123 | struct peer *peer; | |
124 | ||
125 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
126 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
127 | if (upd_ifp) { | |
128 | peer->ifp = upd_ifp; | |
129 | bgp_zebra_initiate_radv(bgp, peer); | |
130 | } else { | |
131 | bgp_zebra_terminate_radv(bgp, peer); | |
132 | peer->ifp = upd_ifp; | |
133 | } | |
134 | } | |
135 | } | |
4a04e5f7 | 136 | } |
137 | ||
d62a17ae | 138 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
139 | zebra_size_t length) | |
cd1964ff | 140 | { |
d62a17ae | 141 | bgp_parse_fec_update(); |
142 | return 0; | |
cd1964ff DS |
143 | } |
144 | ||
d62a17ae | 145 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 146 | { |
d62a17ae | 147 | struct listnode *node, *nnode; |
148 | struct peer *peer; | |
149 | ||
150 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
151 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
152 | && peer->status != Established) { | |
153 | if (peer_active(peer)) | |
154 | BGP_EVENT_ADD(peer, BGP_Stop); | |
155 | BGP_EVENT_ADD(peer, BGP_Start); | |
156 | } | |
157 | } | |
a80beece DS |
158 | } |
159 | ||
d62a17ae | 160 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 161 | { |
d62a17ae | 162 | struct listnode *node; |
163 | struct connected *connected; | |
164 | struct interface *ifp; | |
165 | struct prefix *p; | |
166 | ||
167 | /* Kick-off the FSM for any relevant peers only if there is a | |
168 | * valid local address on the interface. | |
169 | */ | |
170 | ifp = ifc->ifp; | |
171 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
172 | p = connected->address; | |
173 | if (p->family == AF_INET6 | |
174 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
175 | break; | |
176 | } | |
177 | if (!connected) | |
178 | return; | |
179 | ||
180 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
181 | } |
182 | ||
d62a17ae | 183 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
184 | int del) | |
a80beece | 185 | { |
d62a17ae | 186 | struct listnode *node, *nnode; |
187 | struct peer *peer; | |
188 | struct interface *ifp; | |
189 | ||
190 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
191 | if (peer->conf_if | |
192 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
193 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
194 | BGP_EVENT_ADD(peer, BGP_Stop); | |
195 | } | |
196 | } | |
197 | /* Free neighbor also, if we're asked to. */ | |
198 | if (del) { | |
199 | ifp = ifc->ifp; | |
200 | listnode_delete(ifp->nbr_connected, ifc); | |
201 | nbr_connected_free(ifc); | |
202 | } | |
a80beece DS |
203 | } |
204 | ||
3c3c3252 | 205 | static int bgp_ifp_destroy(struct interface *ifp) |
718e3744 | 206 | { |
d62a17ae | 207 | struct bgp *bgp; |
718e3744 | 208 | |
3c3c3252 | 209 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
a4499b83 | 210 | |
d62a17ae | 211 | if (BGP_DEBUG(zebra, ZEBRA)) |
3835984f | 212 | zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf_id, ifp->name); |
a39275d7 | 213 | |
85751d1d DS |
214 | if (bgp) |
215 | bgp_update_interface_nbrs(bgp, ifp, NULL); | |
64745052 | 216 | |
6a69ac51 DS |
217 | bgp_mac_del_mac_entry(ifp); |
218 | ||
d62a17ae | 219 | return 0; |
718e3744 | 220 | } |
221 | ||
ddbf3e60 | 222 | static int bgp_ifp_up(struct interface *ifp) |
718e3744 | 223 | { |
d62a17ae | 224 | struct connected *c; |
225 | struct nbr_connected *nc; | |
226 | struct listnode *node, *nnode; | |
227 | struct bgp *bgp; | |
6aeb9e78 | 228 | |
ddbf3e60 | 229 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 230 | |
6a69ac51 DS |
231 | bgp_mac_add_mac_entry(ifp); |
232 | ||
d62a17ae | 233 | if (BGP_DEBUG(zebra, ZEBRA)) |
ddbf3e60 | 234 | zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 235 | |
85751d1d DS |
236 | if (!bgp) |
237 | return 0; | |
238 | ||
d62a17ae | 239 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
240 | bgp_connected_add(bgp, c); | |
718e3744 | 241 | |
d62a17ae | 242 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
243 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 244 | |
d62a17ae | 245 | return 0; |
718e3744 | 246 | } |
247 | ||
b0b69e59 | 248 | static int bgp_ifp_down(struct interface *ifp) |
718e3744 | 249 | { |
d62a17ae | 250 | struct connected *c; |
251 | struct nbr_connected *nc; | |
252 | struct listnode *node, *nnode; | |
253 | struct bgp *bgp; | |
c19fe3c7 | 254 | struct peer *peer; |
6aeb9e78 | 255 | |
b0b69e59 | 256 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 257 | |
6a69ac51 DS |
258 | bgp_mac_del_mac_entry(ifp); |
259 | ||
d62a17ae | 260 | if (BGP_DEBUG(zebra, ZEBRA)) |
b0b69e59 | 261 | zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 262 | |
85751d1d DS |
263 | if (!bgp) |
264 | return 0; | |
265 | ||
d62a17ae | 266 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
267 | bgp_connected_delete(bgp, c); | |
718e3744 | 268 | |
d62a17ae | 269 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
270 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 271 | |
d62a17ae | 272 | /* Fast external-failover */ |
c19fe3c7 | 273 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 274 | |
d62a17ae | 275 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 276 | #if defined(HAVE_CUMULUS) |
d62a17ae | 277 | /* Take down directly connected EBGP peers as well as |
278 | * 1-hop BFD | |
279 | * tracked (directly connected) IBGP peers. | |
280 | */ | |
c8d6f0d6 | 281 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 | 282 | && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED) |
d62a17ae | 283 | && (!peer->bfd_info |
284 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 285 | #else |
d62a17ae | 286 | /* Take down directly connected EBGP peers */ |
c8d6f0d6 | 287 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 | 288 | && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED)) |
8c4f6381 | 289 | #endif |
d62a17ae | 290 | continue; |
718e3744 | 291 | |
d62a17ae | 292 | if (ifp == peer->nexthop.ifp) { |
293 | BGP_EVENT_ADD(peer, BGP_Stop); | |
294 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
295 | } | |
296 | } | |
297 | } | |
718e3744 | 298 | |
d62a17ae | 299 | return 0; |
718e3744 | 300 | } |
301 | ||
121f9dee | 302 | static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 303 | { |
d62a17ae | 304 | struct connected *ifc; |
2f9123e0 DS |
305 | struct bgp *bgp; |
306 | ||
307 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 308 | |
121f9dee | 309 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 310 | |
311 | if (ifc == NULL) | |
312 | return 0; | |
313 | ||
2dbe669b DA |
314 | if (bgp_debug_zebra(ifc->address)) |
315 | zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id, | |
316 | ifc->ifp->name, ifc->address); | |
d62a17ae | 317 | |
85751d1d DS |
318 | if (!bgp) |
319 | return 0; | |
320 | ||
d62a17ae | 321 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 322 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 323 | |
d62a17ae | 324 | /* If we have learnt of any neighbors on this interface, |
325 | * check to kick off any BGP interface-based neighbors, | |
326 | * but only if this is a link-local address. | |
327 | */ | |
328 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
329 | && !list_isempty(ifc->ifp->nbr_connected)) | |
330 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
331 | } | |
332 | ||
333 | return 0; | |
718e3744 | 334 | } |
335 | ||
121f9dee | 336 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 337 | { |
d62a17ae | 338 | struct connected *ifc; |
339 | struct bgp *bgp; | |
6aeb9e78 | 340 | |
2f9123e0 | 341 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 342 | |
121f9dee | 343 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 344 | |
d62a17ae | 345 | if (ifc == NULL) |
346 | return 0; | |
718e3744 | 347 | |
2dbe669b DA |
348 | if (bgp_debug_zebra(ifc->address)) |
349 | zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id, | |
350 | ifc->ifp->name, ifc->address); | |
a39275d7 | 351 | |
85751d1d | 352 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 353 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 354 | } |
718e3744 | 355 | |
721c0857 | 356 | connected_free(&ifc); |
718e3744 | 357 | |
d62a17ae | 358 | return 0; |
718e3744 | 359 | } |
360 | ||
121f9dee | 361 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 362 | { |
d62a17ae | 363 | struct nbr_connected *ifc = NULL; |
364 | struct bgp *bgp; | |
365 | ||
121f9dee | 366 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 367 | |
368 | if (ifc == NULL) | |
369 | return 0; | |
370 | ||
2dbe669b DA |
371 | if (bgp_debug_zebra(ifc->address)) |
372 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX", | |
373 | vrf_id, ifc->ifp->name, ifc->address); | |
d62a17ae | 374 | |
375 | if (if_is_operative(ifc->ifp)) { | |
376 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
377 | if (bgp) | |
378 | bgp_nbr_connected_add(bgp, ifc); | |
379 | } | |
380 | ||
381 | return 0; | |
a80beece DS |
382 | } |
383 | ||
121f9dee | 384 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 385 | { |
d62a17ae | 386 | struct nbr_connected *ifc = NULL; |
387 | struct bgp *bgp; | |
6aeb9e78 | 388 | |
121f9dee | 389 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 390 | |
d62a17ae | 391 | if (ifc == NULL) |
392 | return 0; | |
a80beece | 393 | |
2dbe669b DA |
394 | if (bgp_debug_zebra(ifc->address)) |
395 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX", | |
396 | vrf_id, ifc->ifp->name, ifc->address); | |
a80beece | 397 | |
d62a17ae | 398 | if (if_is_operative(ifc->ifp)) { |
399 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
400 | if (bgp) | |
401 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
402 | } | |
a80beece | 403 | |
d62a17ae | 404 | nbr_connected_free(ifc); |
a80beece | 405 | |
d62a17ae | 406 | return 0; |
a80beece DS |
407 | } |
408 | ||
bfcd43b2 | 409 | /* VRF update for an interface. */ |
121f9dee | 410 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 411 | { |
d62a17ae | 412 | struct interface *ifp; |
413 | vrf_id_t new_vrf_id; | |
414 | struct connected *c; | |
415 | struct nbr_connected *nc; | |
416 | struct listnode *node, *nnode; | |
417 | struct bgp *bgp; | |
c19fe3c7 | 418 | struct peer *peer; |
bfcd43b2 | 419 | |
d62a17ae | 420 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
421 | &new_vrf_id); | |
422 | if (!ifp) | |
423 | return 0; | |
bfcd43b2 | 424 | |
d62a17ae | 425 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
426 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
427 | ifp->name, new_vrf_id); | |
bfcd43b2 | 428 | |
d62a17ae | 429 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 430 | |
85751d1d DS |
431 | if (bgp) { |
432 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
433 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 434 | |
85751d1d DS |
435 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
436 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 437 | |
85751d1d DS |
438 | /* Fast external-failover */ |
439 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
440 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
c8d6f0d6 | 441 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 DA |
442 | && (peer->gtsm_hops |
443 | != BGP_GTSM_HOPS_CONNECTED)) | |
85751d1d | 444 | continue; |
bfcd43b2 | 445 | |
85751d1d DS |
446 | if (ifp == peer->nexthop.ifp) |
447 | BGP_EVENT_ADD(peer, BGP_Stop); | |
448 | } | |
d62a17ae | 449 | } |
450 | } | |
bfcd43b2 | 451 | |
a36898e7 | 452 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 453 | |
d62a17ae | 454 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
455 | if (!bgp) | |
456 | return 0; | |
bfcd43b2 | 457 | |
d62a17ae | 458 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
459 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 460 | |
d62a17ae | 461 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
462 | bgp_nbr_connected_add(bgp, nc); | |
463 | return 0; | |
bfcd43b2 | 464 | } |
465 | ||
718e3744 | 466 | /* Zebra route add and delete treatment. */ |
121f9dee | 467 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 468 | { |
9de1f7ff | 469 | enum nexthop_types_t nhtype; |
74489921 RW |
470 | struct zapi_route api; |
471 | union g_addr nexthop; | |
9de1f7ff | 472 | ifindex_t ifindex; |
74489921 | 473 | int add, i; |
d62a17ae | 474 | struct bgp *bgp; |
475 | ||
476 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
477 | if (!bgp) | |
478 | return 0; | |
479 | ||
74489921 RW |
480 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
481 | return -1; | |
d62a17ae | 482 | |
74489921 RW |
483 | /* we completely ignore srcdest routes for now. */ |
484 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
485 | return 0; | |
d62a17ae | 486 | |
74489921 RW |
487 | /* ignore link-local address. */ |
488 | if (api.prefix.family == AF_INET6 | |
489 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
490 | return 0; | |
d62a17ae | 491 | |
74489921 RW |
492 | nexthop = api.nexthops[0].gate; |
493 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 494 | nhtype = api.nexthops[0].type; |
d62a17ae | 495 | |
121f9dee | 496 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 497 | if (add) { |
d62a17ae | 498 | /* |
499 | * The ADD message is actually an UPDATE and there is no | |
500 | * explicit DEL | |
501 | * for a prior redistributed route, if any. So, perform an | |
502 | * implicit | |
503 | * DEL processing for the same redistributed route from any | |
504 | * other | |
505 | * source type. | |
506 | */ | |
507 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
508 | if (i != api.type) | |
74489921 | 509 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 510 | api.instance); |
511 | } | |
512 | ||
513 | /* Now perform the add/update. */ | |
74489921 | 514 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
515 | nhtype, api.metric, api.type, api.instance, |
516 | api.tag); | |
d62a17ae | 517 | } else { |
74489921 RW |
518 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
519 | api.instance); | |
a39275d7 | 520 | } |
d62a17ae | 521 | |
74489921 | 522 | if (bgp_debug_zebra(&api.prefix)) { |
2dbe669b | 523 | char buf[PREFIX_STRLEN]; |
74489921 | 524 | |
77e62f2b | 525 | if (add) { |
2dbe669b DA |
526 | inet_ntop(api.prefix.family, &nexthop, buf, |
527 | sizeof(buf)); | |
77e62f2b | 528 | zlog_debug( |
801bb996 | 529 | "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI, |
77e62f2b | 530 | vrf_id, zebra_route_string(api.type), |
2dbe669b | 531 | api.instance, &api.prefix, buf, nhtype, ifindex, |
801bb996 | 532 | api.metric, api.distance, api.tag); |
77e62f2b | 533 | } else { |
6bdbcbf1 | 534 | zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id, |
2dbe669b | 535 | zebra_route_string(api.type), api.instance, |
6bdbcbf1 | 536 | &api.prefix); |
77e62f2b | 537 | } |
d62a17ae | 538 | } |
539 | ||
540 | return 0; | |
718e3744 | 541 | } |
6b0655a2 | 542 | |
d62a17ae | 543 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 544 | { |
f4e14fdb | 545 | struct vrf *vrf; |
d62a17ae | 546 | struct listnode *cnode; |
547 | struct interface *ifp; | |
548 | struct connected *connected; | |
549 | struct prefix_ipv4 p; | |
550 | struct prefix *cp; | |
551 | ||
f4e14fdb RW |
552 | vrf = vrf_lookup_by_id(vrf_id); |
553 | if (!vrf) | |
554 | return NULL; | |
555 | ||
d62a17ae | 556 | p.family = AF_INET; |
557 | p.prefix = *addr; | |
558 | p.prefixlen = IPV4_MAX_BITLEN; | |
559 | ||
451fda4f | 560 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 561 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
562 | cp = connected->address; | |
563 | ||
564 | if (cp->family == AF_INET) | |
565 | if (prefix_match(cp, (struct prefix *)&p)) | |
566 | return ifp; | |
567 | } | |
718e3744 | 568 | } |
d62a17ae | 569 | return NULL; |
718e3744 | 570 | } |
571 | ||
d62a17ae | 572 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 573 | { |
f4e14fdb | 574 | struct vrf *vrf; |
d62a17ae | 575 | struct listnode *cnode; |
576 | struct interface *ifp; | |
577 | struct connected *connected; | |
578 | struct prefix *cp; | |
579 | ||
f4e14fdb RW |
580 | vrf = vrf_lookup_by_id(vrf_id); |
581 | if (!vrf) | |
582 | return NULL; | |
583 | ||
451fda4f | 584 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 585 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
586 | cp = connected->address; | |
587 | ||
588 | if (cp->family == AF_INET) | |
589 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
590 | return ifp; | |
591 | } | |
718e3744 | 592 | } |
d62a17ae | 593 | return NULL; |
718e3744 | 594 | } |
595 | ||
d62a17ae | 596 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
597 | vrf_id_t vrf_id) | |
718e3744 | 598 | { |
f4e14fdb | 599 | struct vrf *vrf; |
d62a17ae | 600 | struct listnode *cnode; |
601 | struct interface *ifp; | |
602 | struct connected *connected; | |
603 | struct prefix_ipv6 p; | |
604 | struct prefix *cp; | |
605 | ||
f4e14fdb RW |
606 | vrf = vrf_lookup_by_id(vrf_id); |
607 | if (!vrf) | |
608 | return NULL; | |
609 | ||
d62a17ae | 610 | p.family = AF_INET6; |
611 | p.prefix = *addr; | |
612 | p.prefixlen = IPV6_MAX_BITLEN; | |
613 | ||
451fda4f | 614 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 615 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
616 | cp = connected->address; | |
617 | ||
618 | if (cp->family == AF_INET6) | |
619 | if (prefix_match(cp, (struct prefix *)&p)) { | |
620 | if (IN6_IS_ADDR_LINKLOCAL( | |
621 | &cp->u.prefix6)) { | |
622 | if (ifindex == ifp->ifindex) | |
623 | return ifp; | |
624 | } else | |
625 | return ifp; | |
626 | } | |
627 | } | |
718e3744 | 628 | } |
d62a17ae | 629 | return NULL; |
718e3744 | 630 | } |
631 | ||
d62a17ae | 632 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
633 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 634 | { |
f4e14fdb | 635 | struct vrf *vrf; |
d62a17ae | 636 | struct listnode *cnode; |
637 | struct interface *ifp; | |
638 | struct connected *connected; | |
639 | struct prefix *cp; | |
640 | ||
f4e14fdb RW |
641 | vrf = vrf_lookup_by_id(vrf_id); |
642 | if (!vrf) | |
643 | return NULL; | |
644 | ||
451fda4f | 645 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 646 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
647 | cp = connected->address; | |
648 | ||
649 | if (cp->family == AF_INET6) | |
650 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
651 | if (IN6_IS_ADDR_LINKLOCAL( | |
652 | &cp->u.prefix6)) { | |
653 | if (ifindex == ifp->ifindex) | |
654 | return ifp; | |
655 | } else | |
656 | return ifp; | |
657 | } | |
658 | } | |
718e3744 | 659 | } |
d62a17ae | 660 | return NULL; |
718e3744 | 661 | } |
662 | ||
d62a17ae | 663 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 664 | { |
d62a17ae | 665 | struct listnode *cnode; |
666 | struct connected *connected; | |
667 | struct prefix *cp; | |
668 | ||
669 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
670 | cp = connected->address; | |
671 | ||
672 | if (cp->family == AF_INET6) | |
673 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
674 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
675 | return 1; | |
676 | } | |
677 | } | |
678 | return 0; | |
718e3744 | 679 | } |
680 | ||
d62a17ae | 681 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 682 | { |
d62a17ae | 683 | struct listnode *cnode; |
684 | struct connected *connected; | |
685 | struct prefix *cp; | |
686 | ||
687 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
688 | cp = connected->address; | |
689 | ||
690 | if (cp->family == AF_INET6) | |
691 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
692 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
693 | return 1; | |
694 | } | |
695 | } | |
696 | return 0; | |
718e3744 | 697 | } |
718e3744 | 698 | |
d62a17ae | 699 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 700 | { |
d62a17ae | 701 | struct listnode *cnode; |
702 | struct connected *connected; | |
703 | struct prefix *cp; | |
704 | ||
705 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
706 | cp = connected->address; | |
707 | if ((cp->family == AF_INET) | |
708 | && !ipv4_martian(&(cp->u.prefix4))) { | |
709 | *addr = cp->u.prefix4; | |
710 | return 1; | |
711 | } | |
712 | } | |
713 | return 0; | |
6ee06fa9 PM |
714 | } |
715 | ||
17cdd31e DS |
716 | |
717 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
718 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 719 | { |
d62a17ae | 720 | int ret = 0; |
721 | struct interface *ifp = NULL; | |
722 | ||
723 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
724 | ||
725 | if (!local) | |
17cdd31e | 726 | return false; |
d62a17ae | 727 | if (!remote) |
17cdd31e | 728 | return false; |
d62a17ae | 729 | |
730 | if (local->sa.sa_family == AF_INET) { | |
731 | nexthop->v4 = local->sin.sin_addr; | |
732 | if (peer->update_if) | |
733 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 734 | peer->bgp->vrf_id); |
d62a17ae | 735 | else |
736 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
737 | peer->bgp->vrf_id); | |
718e3744 | 738 | } |
d62a17ae | 739 | if (local->sa.sa_family == AF_INET6) { |
8f2b2139 | 740 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN); |
d62a17ae | 741 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { |
742 | if (peer->conf_if || peer->ifname) | |
743 | ifp = if_lookup_by_name(peer->conf_if | |
744 | ? peer->conf_if | |
745 | : peer->ifname, | |
a36898e7 | 746 | peer->bgp->vrf_id); |
d62a17ae | 747 | } else if (peer->update_if) |
748 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 749 | peer->bgp->vrf_id); |
d62a17ae | 750 | else |
751 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
752 | local->sin6.sin6_scope_id, | |
753 | peer->bgp->vrf_id); | |
718e3744 | 754 | } |
d62a17ae | 755 | |
17cdd31e DS |
756 | if (!ifp) { |
757 | /* | |
758 | * BGP views do not currently get proper data | |
759 | * from zebra( when attached ) to be able to | |
760 | * properly resolve nexthops, so give this | |
761 | * instance type a pass. | |
762 | */ | |
763 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
764 | return true; | |
765 | /* | |
766 | * If we have no interface data but we have established | |
767 | * some connection w/ zebra than something has gone | |
768 | * terribly terribly wrong here, so say this failed | |
769 | * If we do not any zebra connection then not | |
770 | * having a ifp pointer is ok. | |
771 | */ | |
772 | return zclient_num_connects ? false : true; | |
773 | } | |
d62a17ae | 774 | |
775 | nexthop->ifp = ifp; | |
776 | ||
777 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
778 | if (local->sa.sa_family == AF_INET) { | |
779 | /* IPv6 nexthop*/ | |
780 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
781 | ||
782 | if (!ret) { | |
783 | /* There is no global nexthop. Use link-local address as | |
784 | * both the | |
785 | * global and link-local nexthop. In this scenario, the | |
786 | * expectation | |
787 | * for interop is that the network admin would use a | |
788 | * route-map to | |
789 | * specify the global IPv6 nexthop. | |
790 | */ | |
791 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
792 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
793 | IPV6_MAX_BYTELEN); | |
794 | } else | |
795 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
796 | ||
797 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
798 | peer->shared_network = 1; | |
799 | else | |
800 | peer->shared_network = 0; | |
718e3744 | 801 | } |
718e3744 | 802 | |
d62a17ae | 803 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
804 | if (local->sa.sa_family == AF_INET6) { | |
805 | struct interface *direct = NULL; | |
806 | ||
807 | /* IPv4 nexthop. */ | |
808 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
975a328e | 809 | if (!ret && peer->local_id.s_addr != INADDR_ANY) |
d62a17ae | 810 | nexthop->v4 = peer->local_id; |
811 | ||
812 | /* Global address*/ | |
813 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
814 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
815 | IPV6_MAX_BYTELEN); | |
816 | ||
817 | /* If directory connected set link-local address. */ | |
818 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
819 | remote->sin6.sin6_scope_id, | |
820 | peer->bgp->vrf_id); | |
821 | if (direct) | |
822 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
823 | } else | |
824 | /* Link-local address. */ | |
825 | { | |
826 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
827 | ||
828 | /* If there is no global address. Set link-local | |
829 | address as | |
830 | global. I know this break RFC specification... */ | |
831 | /* In this scenario, the expectation for interop is that | |
832 | * the | |
833 | * network admin would use a route-map to specify the | |
834 | * global | |
835 | * IPv6 nexthop. | |
836 | */ | |
837 | if (!ret) | |
838 | memcpy(&nexthop->v6_global, | |
839 | &local->sin6.sin6_addr, | |
840 | IPV6_MAX_BYTELEN); | |
841 | /* Always set the link-local address */ | |
842 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
843 | IPV6_MAX_BYTELEN); | |
844 | } | |
845 | ||
846 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
847 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
848 | remote->sin6.sin6_scope_id, | |
849 | peer->bgp->vrf_id)) | |
850 | peer->shared_network = 1; | |
851 | else | |
852 | peer->shared_network = 0; | |
853 | } | |
718e3744 | 854 | |
d62a17ae | 855 | /* KAME stack specific treatment. */ |
718e3744 | 856 | #ifdef KAME |
d62a17ae | 857 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
858 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
859 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
860 | } | |
861 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
862 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
863 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
864 | } | |
718e3744 | 865 | #endif /* KAME */ |
e33a4880 | 866 | |
d62a17ae | 867 | /* If we have identified the local interface, there is no error for now. |
868 | */ | |
17cdd31e | 869 | return true; |
718e3744 | 870 | } |
871 | ||
18ee8310 | 872 | static struct in6_addr * |
40381db7 | 873 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 874 | { |
d62a17ae | 875 | struct in6_addr *nexthop = NULL; |
876 | ||
877 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
878 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
879 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 880 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 881 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 882 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 883 | } |
d62a17ae | 884 | |
885 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
886 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
887 | || path->attr->mp_nexthop_len | |
888 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 889 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
890 | if (path->attr->mp_nexthop_prefer_global) { |
891 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 892 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 893 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 894 | } else { |
d62a17ae | 895 | /* Workaround for Cisco's nexthop bug. */ |
896 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 DS |
897 | &path->attr->mp_nexthop_global) |
898 | && path->peer->su_remote->sa.sa_family | |
59a0f1cb | 899 | == AF_INET6) { |
d62a17ae | 900 | nexthop = |
40381db7 | 901 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 902 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 903 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 904 | ->ifindex; |
77e62f2b | 905 | } else { |
40381db7 | 906 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 907 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 908 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 909 | } |
d62a17ae | 910 | } |
911 | } | |
912 | ||
913 | return nexthop; | |
73ac8160 DS |
914 | } |
915 | ||
b8685f9b | 916 | static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p, |
3dc339cd | 917 | struct bgp_path_info *path) |
73ac8160 | 918 | { |
b4cb15c6 DL |
919 | route_map_result_t ret; |
920 | ||
1782514f | 921 | ret = route_map_apply(map, p, path); |
40381db7 | 922 | bgp_attr_flush(path->attr); |
b4cb15c6 DL |
923 | |
924 | if (ret != RMAP_DENYMATCH) | |
3dc339cd | 925 | return true; |
d62a17ae | 926 | |
927 | if (bgp_debug_zebra(p)) { | |
928 | if (p->family == AF_INET) { | |
929 | char buf[2][INET_ADDRSTRLEN]; | |
930 | zlog_debug( | |
8228a9a7 DS |
931 | "Zebra rmap deny: IPv4 route %pFX nexthop %s", |
932 | p, | |
40381db7 | 933 | inet_ntop(AF_INET, &path->attr->nexthop, buf[1], |
d62a17ae | 934 | sizeof(buf[1]))); |
935 | } | |
936 | if (p->family == AF_INET6) { | |
937 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 938 | ifindex_t ifindex; |
939 | struct in6_addr *nexthop; | |
940 | ||
40381db7 | 941 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 942 | zlog_debug( |
8228a9a7 DS |
943 | "Zebra rmap deny: IPv6 route %pFX nexthop %s", |
944 | p, | |
945 | inet_ntop(AF_INET6, nexthop, buf[1], | |
946 | sizeof(buf[1]))); | |
d62a17ae | 947 | } |
948 | } | |
3dc339cd | 949 | return false; |
73ac8160 DS |
950 | } |
951 | ||
b98f7728 PG |
952 | static struct thread *bgp_tm_thread_connect; |
953 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
954 | static bool bgp_tm_chunk_obtained; |
955 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
956 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 957 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
958 | |
959 | static int bgp_zebra_tm_connect(struct thread *t) | |
960 | { | |
961 | struct zclient *zclient; | |
962 | int delay = 10, ret = 0; | |
963 | ||
964 | zclient = THREAD_ARG(t); | |
965 | if (bgp_tm_status_connected && zclient->sock > 0) | |
966 | delay = 60; | |
967 | else { | |
968 | bgp_tm_status_connected = false; | |
969 | ret = tm_table_manager_connect(zclient); | |
970 | } | |
971 | if (ret < 0) { | |
b7cd3069 | 972 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
973 | bgp_tm_status_connected = false; |
974 | } else { | |
975 | if (!bgp_tm_status_connected) | |
976 | zlog_debug("Connecting to table manager. Success"); | |
977 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
978 | if (!bgp_tm_chunk_obtained) { |
979 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
980 | &bgp_tm_min, | |
6818e7e5 | 981 | &bgp_tm_max) >= 0) { |
31c28cd7 | 982 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
983 | /* parse non installed entries */ |
984 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
985 | } | |
31c28cd7 | 986 | } |
b98f7728 PG |
987 | } |
988 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
989 | &bgp_tm_thread_connect); | |
990 | return 0; | |
991 | } | |
992 | ||
6818e7e5 PG |
993 | bool bgp_zebra_tm_chunk_obtained(void) |
994 | { | |
995 | return bgp_tm_chunk_obtained; | |
996 | } | |
997 | ||
31c28cd7 PG |
998 | uint32_t bgp_zebra_tm_get_id(void) |
999 | { | |
1000 | static int table_id; | |
1001 | ||
1002 | if (!bgp_tm_chunk_obtained) | |
1003 | return ++table_id; | |
1004 | return bgp_tm_min++; | |
1005 | } | |
1006 | ||
6818e7e5 | 1007 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1008 | { |
1009 | int delay = 1; | |
1010 | ||
1011 | /* if already set, do nothing | |
1012 | */ | |
1013 | if (bgp_tm_thread_connect != NULL) | |
1014 | return; | |
1015 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1016 | bgp_tm_chunk_obtained = false; |
1017 | bgp_tm_min = bgp_tm_max = 0; | |
1018 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1019 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1020 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1021 | &bgp_tm_thread_connect); | |
1022 | } | |
1023 | ||
1024 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1025 | uint32_t *start, uint32_t *end) | |
1026 | { | |
1027 | int ret; | |
1028 | ||
1029 | if (!bgp_tm_status_connected) | |
1030 | return -1; | |
1031 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1032 | if (ret < 0) { | |
e50f7cfd | 1033 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1034 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1035 | return -1; |
1036 | } | |
1037 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1038 | chunk_size, *start, *end); | |
1039 | return 0; | |
1040 | } | |
1041 | ||
3dc339cd DA |
1042 | static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1043 | struct in_addr *nexthop, | |
1044 | struct attr *attr, bool is_evpn, | |
1045 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1046 | { |
1047 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1048 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1049 | |
1050 | /* Need to set fields appropriately for EVPN routes imported into | |
1051 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1052 | * connected routes leaked into a VRF. | |
1053 | */ | |
e1e71450 | 1054 | if (is_evpn) { |
77e62f2b | 1055 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
68a02e06 | 1056 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
e1e71450 | 1057 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1058 | } else if (nh_othervrf && | |
77e62f2b | 1059 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
1060 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1061 | api_nh->ifindex = attr->nh_ifindex; | |
1062 | } else | |
1063 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1064 | ||
3dc339cd | 1065 | return true; |
77e62f2b | 1066 | } |
1067 | ||
3dc339cd DA |
1068 | static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1069 | struct in6_addr *nexthop, | |
1070 | ifindex_t ifindex, | |
1071 | struct bgp_path_info *pi, | |
1072 | struct bgp_path_info *best_pi, | |
1073 | bool is_evpn, | |
1074 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1075 | { |
1076 | struct attr *attr; | |
1077 | ||
40381db7 | 1078 | attr = pi->attr; |
e1e71450 | 1079 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1080 | |
e1e71450 | 1081 | if (is_evpn) { |
77e62f2b | 1082 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
68a02e06 | 1083 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
e1e71450 | 1084 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1085 | } else if (nh_othervrf) { | |
77e62f2b | 1086 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1087 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1088 | api_nh->ifindex = attr->nh_ifindex; | |
1089 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1090 | if (ifindex == 0) | |
3dc339cd | 1091 | return false; |
77e62f2b | 1092 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1093 | api_nh->ifindex = ifindex; | |
1094 | } else { | |
1095 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1096 | api_nh->ifindex = 0; | |
1097 | } | |
1098 | } else { | |
1099 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1100 | if (pi == best_pi |
1101 | && attr->mp_nexthop_len | |
1102 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1103 | if (pi->peer->nexthop.ifp) | |
1104 | ifindex = | |
1105 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1106 | if (!ifindex) { |
40381db7 DS |
1107 | if (pi->peer->conf_if) |
1108 | ifindex = pi->peer->ifp->ifindex; | |
1109 | else if (pi->peer->ifname) | |
77e62f2b | 1110 | ifindex = ifname2ifindex( |
40381db7 DS |
1111 | pi->peer->ifname, |
1112 | pi->peer->bgp->vrf_id); | |
1113 | else if (pi->peer->nexthop.ifp) | |
1114 | ifindex = | |
1115 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1116 | } |
1117 | ||
1118 | if (ifindex == 0) | |
3dc339cd | 1119 | return false; |
77e62f2b | 1120 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1121 | api_nh->ifindex = ifindex; | |
1122 | } else { | |
1123 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1124 | api_nh->ifindex = 0; | |
1125 | } | |
1126 | } | |
c2ca3e25 PG |
1127 | if (nexthop) |
1128 | api_nh->gate.ipv6 = *nexthop; | |
77e62f2b | 1129 | |
3dc339cd | 1130 | return true; |
77e62f2b | 1131 | } |
1132 | ||
f7e1c681 | 1133 | static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr, |
1134 | uint64_t tot_bw, uint32_t *nh_weight) | |
4e30bc2b | 1135 | { |
f7e1c681 | 1136 | uint32_t bw; |
1137 | uint64_t tmp; | |
1138 | ||
1139 | bw = attr->link_bw; | |
1140 | /* zero link-bandwidth and link-bandwidth not present are treated | |
1141 | * as the same situation. | |
1142 | */ | |
1143 | if (!bw) { | |
1144 | /* the only situations should be if we're either told | |
1145 | * to skip or use default weight. | |
1146 | */ | |
1147 | if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING) | |
1148 | return false; | |
1149 | *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT; | |
1150 | } else { | |
1151 | tmp = (uint64_t)bw * 100; | |
1152 | *nh_weight = ((uint32_t)(tmp / tot_bw)); | |
1153 | } | |
1154 | ||
1155 | return true; | |
4e30bc2b | 1156 | } |
1157 | ||
9bcb3eef | 1158 | void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p, |
4b7e6066 | 1159 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1160 | safi_t safi) |
718e3744 | 1161 | { |
7cc27d41 | 1162 | struct zapi_route api = { 0 }; |
9913029c | 1163 | struct zapi_nexthop *api_nh; |
2ad4f093 | 1164 | int nh_family; |
a74e593b | 1165 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1166 | int has_valid_label = 0; |
d7c0a89a | 1167 | uint8_t distance; |
d62a17ae | 1168 | struct peer *peer; |
4b7e6066 | 1169 | struct bgp_path_info *mpinfo; |
d7c0a89a | 1170 | uint32_t metric; |
b4cb15c6 | 1171 | struct attr local_attr; |
4b7e6066 DS |
1172 | struct bgp_path_info local_info; |
1173 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1174 | route_tag_t tag; |
1175 | mpls_label_t label; | |
ddb5b488 | 1176 | int nh_othervrf = 0; |
960035b2 | 1177 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1178 | bool is_evpn; |
06f16b2c | 1179 | bool nh_updated = false; |
4e30bc2b | 1180 | bool do_wt_ecmp; |
1181 | uint64_t cum_bw = 0; | |
6348981a AK |
1182 | uint32_t nhg_id = 0; |
1183 | bool is_add; | |
d62a17ae | 1184 | |
1185 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1186 | * know of this instance. | |
1187 | */ | |
1188 | if (!bgp_install_info_to_zebra(bgp)) | |
1189 | return; | |
1190 | ||
d62a17ae | 1191 | if (bgp->main_zebra_update_hold) |
1192 | return; | |
1193 | ||
960035b2 | 1194 | if (bgp_debug_zebra(p)) |
ba1976db | 1195 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1196 | |
d90b788e | 1197 | if (safi == SAFI_FLOWSPEC) { |
9bcb3eef DS |
1198 | bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi, |
1199 | safi, true); | |
d90b788e A |
1200 | return; |
1201 | } | |
529efa23 | 1202 | |
ddb5b488 PZ |
1203 | /* |
1204 | * vrf leaking support (will have only one nexthop) | |
1205 | */ | |
1206 | if (info->extra && info->extra->bgp_orig) | |
1207 | nh_othervrf = 1; | |
1208 | ||
9913029c | 1209 | /* Make Zebra API structure. */ |
9913029c RW |
1210 | api.vrf_id = bgp->vrf_id; |
1211 | api.type = ZEBRA_ROUTE_BGP; | |
1212 | api.safi = safi; | |
1213 | api.prefix = *p; | |
1214 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1215 | ||
d62a17ae | 1216 | peer = info->peer; |
1217 | ||
ddb5b488 PZ |
1218 | if (info->type == ZEBRA_ROUTE_BGP |
1219 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1220 | ||
1ec90b5e | 1221 | /* Obtain peer from parent */ |
1222 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1223 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1224 | ->peer; | |
ddb5b488 PZ |
1225 | } |
1226 | ||
d62a17ae | 1227 | tag = info->attr->tag; |
1228 | ||
88493076 | 1229 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1230 | is_evpn = is_route_parent_evpn(info); |
1231 | if (is_evpn) | |
90264d64 | 1232 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1233 | |
d62a17ae | 1234 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1235 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1236 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1237 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1238 | } |
a39275d7 | 1239 | |
c8d6f0d6 | 1240 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL) |
d62a17ae | 1241 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) |
892fedb6 | 1242 | || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) |
d62a17ae | 1243 | |
4e8b02f4 | 1244 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1245 | |
951745bd PG |
1246 | if (info->attr->rmap_table_id) { |
1247 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1248 | api.tableid = info->attr->rmap_table_id; | |
1249 | } | |
1250 | ||
ef3e0d04 SM |
1251 | if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) |
1252 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
1253 | ||
2ad4f093 RW |
1254 | /* Metric is currently based on the best-path only */ |
1255 | metric = info->attr->med; | |
4e30bc2b | 1256 | |
1257 | /* Determine if we're doing weighted ECMP or not */ | |
f7e1c681 | 1258 | do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info); |
4e30bc2b | 1259 | if (do_wt_ecmp) |
1260 | cum_bw = bgp_path_info_mpath_cumbw(info); | |
1261 | ||
6348981a | 1262 | /* EVPN MAC-IP routes are installed with a L3 NHG id */ |
8bcb09a1 | 1263 | if (bgp_evpn_path_es_use_nhg(bgp, info, &nhg_id)) { |
6348981a | 1264 | mpinfo = NULL; |
8bcb09a1 AK |
1265 | api.nhgid = nhg_id; |
1266 | if (nhg_id) | |
1267 | SET_FLAG(api.message, ZAPI_MESSAGE_NHG); | |
1268 | } else { | |
6348981a | 1269 | mpinfo = info; |
8bcb09a1 | 1270 | } |
6348981a AK |
1271 | |
1272 | for (; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { | |
f7e1c681 | 1273 | uint32_t nh_weight; |
1274 | ||
a74e593b RW |
1275 | if (valid_nh_count >= multipath_num) |
1276 | break; | |
1277 | ||
b4cb15c6 | 1278 | *mpinfo_cp = *mpinfo; |
f7e1c681 | 1279 | nh_weight = 0; |
b4cb15c6 | 1280 | |
d0d695f4 RW |
1281 | /* Get nexthop address-family */ |
1282 | if (p->family == AF_INET | |
1283 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1284 | nh_family = AF_INET; | |
1285 | else if (p->family == AF_INET6 | |
1286 | || (p->family == AF_INET | |
1287 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1288 | nh_family = AF_INET6; | |
1289 | else | |
1290 | continue; | |
1291 | ||
f7e1c681 | 1292 | /* If processing for weighted ECMP, determine the next hop's |
1293 | * weight. Based on user setting, we may skip the next hop | |
1294 | * in some situations. | |
1295 | */ | |
1296 | if (do_wt_ecmp) { | |
1297 | if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr, | |
1298 | cum_bw, &nh_weight)) | |
1299 | continue; | |
1300 | } | |
1374aec9 | 1301 | api_nh = &api.nexthops[valid_nh_count]; |
ef3e0d04 SM |
1302 | |
1303 | if (CHECK_FLAG(info->attr->flag, | |
1304 | ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) | |
1305 | api_nh->srte_color = info->attr->srte_color; | |
1306 | ||
2ad4f093 | 1307 | if (nh_family == AF_INET) { |
ddb5b488 | 1308 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1309 | if (mpinfo->extra) { |
1310 | zlog_debug( | |
1311 | "%s: p=%s, bgp_is_valid_label: %d", | |
1312 | __func__, buf_prefix, | |
1313 | bgp_is_valid_label( | |
1314 | &mpinfo->extra | |
1315 | ->label[0])); | |
1316 | } else { | |
1317 | zlog_debug( | |
1318 | "%s: p=%s, extra is NULL, no label", | |
1319 | __func__, buf_prefix); | |
1320 | } | |
1321 | } | |
1322 | ||
6c0a6053 | 1323 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 1324 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1325 | apply doesn't modify the BGP route info. */ |
1326 | local_attr = *mpinfo->attr; | |
1327 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 | 1328 | } |
b4cb15c6 | 1329 | |
ddb5b488 | 1330 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1331 | if (!bgp_table_map_apply( |
d62a17ae | 1332 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1333 | mpinfo_cp)) |
1334 | continue; | |
1335 | ||
1336 | /* metric/tag is only allowed to be | |
1337 | * overridden on 1st nexthop */ | |
1338 | if (mpinfo == info) { | |
1339 | metric = mpinfo_cp->attr->med; | |
1340 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1341 | } |
b4cb15c6 | 1342 | } |
d62a17ae | 1343 | |
77e62f2b | 1344 | nh_updated = update_ipv4nh_for_route_install( |
1345 | nh_othervrf, | |
e1e71450 | 1346 | nh_othervrf ? |
1347 | info->extra->bgp_orig : bgp, | |
77e62f2b | 1348 | &mpinfo_cp->attr->nexthop, |
1349 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1350 | } else { |
f220da99 | 1351 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1352 | struct in6_addr *nexthop; |
9913029c | 1353 | |
6c0a6053 | 1354 | if (bgp->table_map[afi][safi].name) { |
ddb5b488 PZ |
1355 | /* Copy info and attributes, so the route-map |
1356 | apply doesn't modify the BGP route info. */ | |
1357 | local_attr = *mpinfo->attr; | |
1358 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1359 | } |
1360 | ||
d62a17ae | 1361 | if (bgp->table_map[afi][safi].name) { |
1362 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1363 | apply doesn't modify the BGP route info. */ |
1364 | local_attr = *mpinfo->attr; | |
1365 | mpinfo_cp->attr = &local_attr; | |
1366 | ||
1367 | if (!bgp_table_map_apply( | |
d62a17ae | 1368 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1369 | mpinfo_cp)) |
1370 | continue; | |
1371 | ||
1372 | /* metric/tag is only allowed to be | |
1373 | * overridden on 1st nexthop */ | |
1374 | if (mpinfo == info) { | |
1375 | metric = mpinfo_cp->attr->med; | |
1376 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1377 | } |
b4cb15c6 | 1378 | } |
18ee8310 DS |
1379 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1380 | &ifindex); | |
77e62f2b | 1381 | nh_updated = update_ipv6nh_for_route_install( |
e1e71450 | 1382 | nh_othervrf, nh_othervrf ? |
1383 | info->extra->bgp_orig : bgp, | |
1384 | nexthop, ifindex, | |
77e62f2b | 1385 | mpinfo, info, is_evpn, api_nh); |
2ad4f093 | 1386 | } |
d62a17ae | 1387 | |
77e62f2b | 1388 | /* Did we get proper nexthop info to update zebra? */ |
1389 | if (!nh_updated) | |
1390 | continue; | |
1391 | ||
a4d82a8a PZ |
1392 | if (mpinfo->extra |
1393 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1394 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1395 | has_valid_label = 1; |
b57ba6d2 | 1396 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1397 | |
68a02e06 MS |
1398 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
1399 | ||
2ad4f093 RW |
1400 | api_nh->label_num = 1; |
1401 | api_nh->labels[0] = label; | |
d62a17ae | 1402 | } |
22e63104 | 1403 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1404 | sizeof(struct ethaddr)); | |
f7e1c681 | 1405 | api_nh->weight = nh_weight; |
4e30bc2b | 1406 | |
2ad4f093 RW |
1407 | valid_nh_count++; |
1408 | } | |
d62a17ae | 1409 | |
6348981a AK |
1410 | is_add = (valid_nh_count || nhg_id) ? true : false; |
1411 | ||
5cc347c4 DS |
1412 | /* |
1413 | * When we create an aggregate route we must also | |
1414 | * install a Null0 route in the RIB, so overwrite | |
1415 | * what was written into api with a blackhole route | |
1416 | */ | |
1417 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1418 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1419 | else | |
2ad4f093 | 1420 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1421 | |
2ad4f093 RW |
1422 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1423 | api.metric = metric; | |
d62a17ae | 1424 | |
2ad4f093 RW |
1425 | if (tag) { |
1426 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1427 | api.tag = tag; | |
1428 | } | |
d62a17ae | 1429 | |
2ad4f093 RW |
1430 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1431 | if (distance) { | |
1432 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1433 | api.distance = distance; | |
1434 | } | |
d62a17ae | 1435 | |
2ad4f093 | 1436 | if (bgp_debug_zebra(p)) { |
2ad4f093 | 1437 | char nh_buf[INET6_ADDRSTRLEN]; |
d8744f72 CS |
1438 | char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'}; |
1439 | char buf1[ETHER_ADDR_STRLEN]; | |
2ad4f093 RW |
1440 | char label_buf[20]; |
1441 | int i; | |
1442 | ||
2dbe669b DA |
1443 | zlog_debug( |
1444 | "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI | |
6348981a | 1445 | " count %d nhg %d", |
2dbe669b | 1446 | valid_nh_count ? "add" : "delete", bgp->vrf_id, |
6348981a AK |
1447 | &api.prefix, api.metric, api.tag, api.nexthop_num, |
1448 | nhg_id); | |
2ad4f093 RW |
1449 | for (i = 0; i < api.nexthop_num; i++) { |
1450 | api_nh = &api.nexthops[i]; | |
1451 | ||
1ee069db CS |
1452 | switch (api_nh->type) { |
1453 | case NEXTHOP_TYPE_IFINDEX: | |
77e62f2b | 1454 | nh_buf[0] = '\0'; |
1ee069db CS |
1455 | break; |
1456 | case NEXTHOP_TYPE_IPV4: | |
1457 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1458 | nh_family = AF_INET; | |
77e62f2b | 1459 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1460 | sizeof(nh_buf)); | |
1ee069db CS |
1461 | break; |
1462 | case NEXTHOP_TYPE_IPV6: | |
1463 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1464 | nh_family = AF_INET6; | |
1465 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1466 | sizeof(nh_buf)); | |
1467 | break; | |
1468 | case NEXTHOP_TYPE_BLACKHOLE: | |
1469 | strlcpy(nh_buf, "blackhole", sizeof(nh_buf)); | |
1470 | break; | |
1471 | default: | |
1472 | /* Note: add new nexthop case */ | |
1473 | assert(0); | |
1474 | break; | |
77e62f2b | 1475 | } |
2ad4f093 RW |
1476 | |
1477 | label_buf[0] = '\0'; | |
d8744f72 | 1478 | eth_buf[0] = '\0'; |
a4d82a8a PZ |
1479 | if (has_valid_label |
1480 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
a7799788 CS |
1481 | snprintf(label_buf, sizeof(label_buf), |
1482 | "label %u", api_nh->labels[0]); | |
d8744f72 CS |
1483 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE) |
1484 | && !is_zero_mac(&api_nh->rmac)) | |
a7799788 CS |
1485 | snprintf(eth_buf, sizeof(eth_buf), " RMAC %s", |
1486 | prefix_mac2str(&api_nh->rmac, | |
1487 | buf1, sizeof(buf1))); | |
4e30bc2b | 1488 | zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s", |
77e62f2b | 1489 | i + 1, nh_buf, api_nh->ifindex, |
4e30bc2b | 1490 | api_nh->vrf_id, api_nh->weight, |
1491 | label_buf, eth_buf); | |
d62a17ae | 1492 | } |
1493 | } | |
2ad4f093 | 1494 | |
960035b2 PZ |
1495 | if (bgp_debug_zebra(p)) { |
1496 | int recursion_flag = 0; | |
1497 | ||
1498 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1499 | recursion_flag = 1; | |
1500 | ||
1501 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1502 | __func__, buf_prefix, | |
1503 | (recursion_flag ? "" : "NOT ")); | |
1504 | } | |
6348981a | 1505 | zclient_route_send(is_add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, |
2ad4f093 | 1506 | zclient, &api); |
718e3744 | 1507 | } |
1508 | ||
73ac8160 | 1509 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1510 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1511 | { |
9bcb3eef | 1512 | struct bgp_dest *dest; |
d62a17ae | 1513 | struct bgp_table *table; |
40381db7 | 1514 | struct bgp_path_info *pi; |
d62a17ae | 1515 | |
1516 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1517 | * know of this instance. | |
1518 | */ | |
1519 | if (!bgp_install_info_to_zebra(bgp)) | |
1520 | return; | |
1521 | ||
1522 | table = bgp->rib[afi][safi]; | |
1523 | if (!table) | |
1524 | return; | |
1525 | ||
9bcb3eef DS |
1526 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) |
1527 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
40381db7 | 1528 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1529 | |
40381db7 DS |
1530 | (pi->type == ZEBRA_ROUTE_BGP |
1531 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1532 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1533 | |
9bcb3eef DS |
1534 | bgp_zebra_announce(dest, |
1535 | bgp_dest_get_prefix(dest), | |
b54892e0 | 1536 | pi, bgp, afi, safi); |
73ac8160 DS |
1537 | } |
1538 | ||
c163f297 DS |
1539 | /* Announce routes of any bgp subtype of a table to zebra */ |
1540 | void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi, | |
1541 | safi_t safi) | |
1542 | { | |
1543 | struct bgp_dest *dest; | |
1544 | struct bgp_table *table; | |
1545 | struct bgp_path_info *pi; | |
1546 | ||
1547 | if (!bgp_install_info_to_zebra(bgp)) | |
1548 | return; | |
1549 | ||
1550 | table = bgp->rib[afi][safi]; | |
1551 | if (!table) | |
1552 | return; | |
1553 | ||
1554 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) | |
1555 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
1556 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && | |
1557 | pi->type == ZEBRA_ROUTE_BGP) | |
1558 | bgp_zebra_announce(dest, | |
1559 | bgp_dest_get_prefix(dest), | |
1560 | pi, bgp, afi, safi); | |
1561 | } | |
1562 | ||
5a1ae2c2 | 1563 | void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1564 | struct bgp *bgp, safi_t safi) |
718e3744 | 1565 | { |
2ad4f093 | 1566 | struct zapi_route api; |
f7df1907 | 1567 | struct peer *peer; |
ddb5b488 | 1568 | |
d62a17ae | 1569 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1570 | * know of this instance. | |
1571 | */ | |
568e10ca | 1572 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1573 | return; |
1574 | ||
f7df1907 PG |
1575 | if (safi == SAFI_FLOWSPEC) { |
1576 | peer = info->peer; | |
d90b788e A |
1577 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1578 | return; | |
f7df1907 | 1579 | } |
529efa23 | 1580 | |
2ad4f093 | 1581 | memset(&api, 0, sizeof(api)); |
568e10ca | 1582 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1583 | api.type = ZEBRA_ROUTE_BGP; |
1584 | api.safi = safi; | |
1585 | api.prefix = *p; | |
d62a17ae | 1586 | |
1276ce38 PG |
1587 | if (info->attr->rmap_table_id) { |
1588 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1589 | api.tableid = info->attr->rmap_table_id; | |
1590 | } | |
1591 | ||
88493076 | 1592 | /* If the route's source is EVPN, flag as such. */ |
1593 | if (is_route_parent_evpn(info)) | |
90264d64 | 1594 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1595 | |
2dbe669b DA |
1596 | if (bgp_debug_zebra(p)) |
1597 | zlog_debug("Tx route delete VRF %u %pFX", bgp->vrf_id, | |
1598 | &api.prefix); | |
d62a17ae | 1599 | |
2ad4f093 | 1600 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1601 | } |
56c1f7d8 | 1602 | |
c163f297 DS |
1603 | /* Withdraw all entries in a BGP instances RIB table from Zebra */ |
1604 | void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi) | |
1605 | { | |
1606 | struct bgp_dest *dest; | |
1607 | struct bgp_table *table; | |
1608 | struct bgp_path_info *pi; | |
1609 | ||
1610 | if (!bgp_install_info_to_zebra(bgp)) | |
1611 | return; | |
1612 | ||
1613 | table = bgp->rib[afi][safi]; | |
1614 | if (!table) | |
1615 | return; | |
1616 | ||
1617 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) { | |
1618 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
1619 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) | |
1620 | && (pi->type == ZEBRA_ROUTE_BGP)) | |
1621 | bgp_zebra_withdraw(bgp_dest_get_prefix(dest), | |
1622 | pi, bgp, safi); | |
1623 | } | |
1624 | } | |
1625 | } | |
1626 | ||
d7c0a89a QY |
1627 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1628 | unsigned short instance) | |
7c8ff89e | 1629 | { |
d62a17ae | 1630 | struct list *red_list; |
1631 | struct listnode *node; | |
1632 | struct bgp_redist *red; | |
7c8ff89e | 1633 | |
d62a17ae | 1634 | red_list = bgp->redist[afi][type]; |
1635 | if (!red_list) | |
1636 | return (NULL); | |
7c8ff89e | 1637 | |
d62a17ae | 1638 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1639 | if (red->instance == instance) | |
1640 | return red; | |
7c8ff89e | 1641 | |
d62a17ae | 1642 | return NULL; |
7c8ff89e DS |
1643 | } |
1644 | ||
d7c0a89a QY |
1645 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1646 | unsigned short instance) | |
7c8ff89e | 1647 | { |
d62a17ae | 1648 | struct list *red_list; |
1649 | struct bgp_redist *red; | |
7c8ff89e | 1650 | |
d62a17ae | 1651 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1652 | if (red) | |
1653 | return red; | |
7c8ff89e | 1654 | |
d62a17ae | 1655 | if (!bgp->redist[afi][type]) |
1656 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1657 | |
d62a17ae | 1658 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1659 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1660 | red->instance = instance; |
7c8ff89e | 1661 | |
d62a17ae | 1662 | listnode_add(red_list, red); |
7c8ff89e | 1663 | |
d62a17ae | 1664 | return red; |
7c8ff89e DS |
1665 | } |
1666 | ||
d7c0a89a QY |
1667 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1668 | unsigned short instance) | |
7c8ff89e | 1669 | { |
d62a17ae | 1670 | struct bgp_redist *red; |
1671 | ||
1672 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1673 | ||
1674 | if (red) { | |
1675 | listnode_delete(bgp->redist[afi][type], red); | |
1676 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1677 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1678 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1679 | } |
7c8ff89e | 1680 | } |
6b0655a2 | 1681 | |
718e3744 | 1682 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1683 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1684 | unsigned short instance, bool changed) |
718e3744 | 1685 | { |
e923dd62 | 1686 | /* If redistribute options are changed call |
1687 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1688 | * the routes | |
1689 | */ | |
1690 | if (changed) | |
1691 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1692 | |
d62a17ae | 1693 | /* Return if already redistribute flag is set. */ |
1694 | if (instance) { | |
1695 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1696 | instance)) | |
1697 | return CMD_WARNING; | |
718e3744 | 1698 | |
d62a17ae | 1699 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1700 | } else { | |
1701 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1702 | return CMD_WARNING; | |
7076bb2f | 1703 | |
49e5a4a0 | 1704 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1705 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1706 | vnc_export_bgp_enable( |
1707 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1708 | } | |
65efcfce LB |
1709 | #endif |
1710 | ||
d62a17ae | 1711 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1712 | } | |
718e3744 | 1713 | |
ea12cf11 DS |
1714 | /* |
1715 | * Don't try to register if we're not connected to Zebra or Zebra | |
1716 | * doesn't know of this instance. | |
1717 | * | |
1718 | * When we come up later well resend if needed. | |
d62a17ae | 1719 | */ |
1720 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1721 | return CMD_SUCCESS; |
a39275d7 | 1722 | |
d62a17ae | 1723 | if (BGP_DEBUG(zebra, ZEBRA)) |
1724 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1725 | bgp->vrf_id, afi, zebra_route_string(type), | |
1726 | instance); | |
518f0eb1 | 1727 | |
d62a17ae | 1728 | /* Send distribute add message to zebra. */ |
1729 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1730 | instance, bgp->vrf_id); | |
718e3744 | 1731 | |
d62a17ae | 1732 | return CMD_SUCCESS; |
718e3744 | 1733 | } |
1734 | ||
d62a17ae | 1735 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1736 | unsigned short instance) |
518f0eb1 | 1737 | { |
d62a17ae | 1738 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1739 | * know of this instance. | |
1740 | */ | |
1741 | if (!bgp_install_info_to_zebra(bgp)) | |
1742 | return -1; | |
1743 | ||
1744 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1745 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1746 | bgp->vrf_id, afi, zebra_route_string(type), | |
1747 | instance); | |
1748 | ||
1749 | /* Send distribute add message to zebra. */ | |
1750 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1751 | instance, bgp->vrf_id); | |
1752 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1753 | instance, bgp->vrf_id); | |
1754 | ||
1755 | return 0; | |
518f0eb1 DS |
1756 | } |
1757 | ||
718e3744 | 1758 | /* Redistribute with route-map specification. */ |
3dc339cd DA |
1759 | bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1760 | struct route_map *route_map) | |
718e3744 | 1761 | { |
d62a17ae | 1762 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
3dc339cd | 1763 | return false; |
718e3744 | 1764 | |
0a22ddfb | 1765 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1766 | /* Decrement the count for existing routemap and |
1767 | * increment the count for new route map. | |
1768 | */ | |
1769 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1770 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1771 | red->rmap.map = route_map; |
b4897fa5 | 1772 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1773 | |
3dc339cd | 1774 | return true; |
718e3744 | 1775 | } |
1776 | ||
1777 | /* Redistribute with metric specification. */ | |
3dc339cd DA |
1778 | bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
1779 | afi_t afi, int type, uint32_t metric) | |
718e3744 | 1780 | { |
9bcb3eef | 1781 | struct bgp_dest *dest; |
40381db7 | 1782 | struct bgp_path_info *pi; |
d62a17ae | 1783 | |
1784 | if (red->redist_metric_flag && red->redist_metric == metric) | |
3dc339cd | 1785 | return false; |
d62a17ae | 1786 | |
1787 | red->redist_metric_flag = 1; | |
1788 | red->redist_metric = metric; | |
1789 | ||
9bcb3eef DS |
1790 | for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest; |
1791 | dest = bgp_route_next(dest)) { | |
1792 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
40381db7 DS |
1793 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1794 | && pi->type == type | |
1795 | && pi->instance == red->instance) { | |
d62a17ae | 1796 | struct attr *old_attr; |
1797 | struct attr new_attr; | |
1798 | ||
6f4f49b2 | 1799 | new_attr = *pi->attr; |
d62a17ae | 1800 | new_attr.med = red->redist_metric; |
40381db7 DS |
1801 | old_attr = pi->attr; |
1802 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1803 | bgp_attr_unintern(&old_attr); |
1804 | ||
9bcb3eef | 1805 | bgp_path_info_set_flag(dest, pi, |
18ee8310 | 1806 | BGP_PATH_ATTR_CHANGED); |
9bcb3eef | 1807 | bgp_process(bgp, dest, afi, SAFI_UNICAST); |
d62a17ae | 1808 | } |
1809 | } | |
1810 | } | |
1811 | ||
3dc339cd | 1812 | return true; |
718e3744 | 1813 | } |
1814 | ||
1815 | /* Unset redistribution. */ | |
d62a17ae | 1816 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1817 | unsigned short instance) |
718e3744 | 1818 | { |
d62a17ae | 1819 | struct bgp_redist *red; |
1820 | ||
1821 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1822 | if (!red) | |
1823 | return CMD_SUCCESS; | |
1824 | ||
1825 | /* Return if zebra connection is disabled. */ | |
1826 | if (instance) { | |
1827 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1828 | instance)) | |
1829 | return CMD_WARNING; | |
1830 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1831 | } else { | |
1832 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1833 | return CMD_WARNING; | |
1834 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1835 | } | |
718e3744 | 1836 | |
d62a17ae | 1837 | if (bgp_install_info_to_zebra(bgp)) { |
1838 | /* Send distribute delete message to zebra. */ | |
1839 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1840 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1841 | bgp->vrf_id, afi, zebra_route_string(type), | |
1842 | instance); | |
1843 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1844 | type, instance, bgp->vrf_id); | |
1845 | } | |
1846 | ||
1847 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1848 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1849 | ||
1850 | return CMD_SUCCESS; | |
718e3744 | 1851 | } |
1852 | ||
6aeb9e78 | 1853 | /* Unset redistribution. */ |
d62a17ae | 1854 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1855 | unsigned short instance) |
6aeb9e78 | 1856 | { |
d62a17ae | 1857 | struct bgp_redist *red; |
6aeb9e78 | 1858 | |
ddb5b488 PZ |
1859 | /* |
1860 | * vnc and vpn->vrf checks must be before red check because | |
1861 | * they operate within bgpd irrespective of zebra connection | |
1862 | * status. red lookup fails if there is no zebra connection. | |
1863 | */ | |
49e5a4a0 | 1864 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1865 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
1866 | vnc_export_bgp_disable(bgp, afi); |
1867 | } | |
1868 | #endif | |
ddb5b488 | 1869 | |
d62a17ae | 1870 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1871 | if (!red) | |
1872 | return CMD_SUCCESS; | |
6aeb9e78 | 1873 | |
d62a17ae | 1874 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1875 | |
d62a17ae | 1876 | /* Unset route-map. */ |
0a22ddfb | 1877 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1878 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 1879 | red->rmap.map = NULL; |
6aeb9e78 | 1880 | |
d62a17ae | 1881 | /* Unset metric. */ |
1882 | red->redist_metric_flag = 0; | |
1883 | red->redist_metric = 0; | |
6aeb9e78 | 1884 | |
d62a17ae | 1885 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1886 | |
d62a17ae | 1887 | return CMD_SUCCESS; |
6aeb9e78 DS |
1888 | } |
1889 | ||
fc2408ec DS |
1890 | void bgp_redistribute_redo(struct bgp *bgp) |
1891 | { | |
1892 | afi_t afi; | |
1893 | int i; | |
1894 | struct list *red_list; | |
1895 | struct listnode *node; | |
1896 | struct bgp_redist *red; | |
1897 | ||
1898 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
1899 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
1900 | ||
1901 | red_list = bgp->redist[afi][i]; | |
1902 | if (!red_list) | |
1903 | continue; | |
1904 | ||
1905 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1906 | bgp_redistribute_resend(bgp, afi, i, | |
1907 | red->instance); | |
1908 | } | |
1909 | } | |
1910 | } | |
1911 | } | |
1912 | ||
401d56cc DS |
1913 | /* Unset redistribute vrf bitmap during triggers like |
1914 | restart networking or delete VRFs */ | |
1915 | void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) | |
eb117f29 | 1916 | { |
d62a17ae | 1917 | int i; |
1918 | afi_t afi; | |
1919 | ||
1920 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1921 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
7e20406f | 1922 | if (vrf_bitmap_check(zclient->redist[afi][i], |
401d56cc | 1923 | old_vrf_id)) |
d62a17ae | 1924 | vrf_bitmap_unset(zclient->redist[afi][i], |
1925 | old_vrf_id); | |
d62a17ae | 1926 | return; |
eb117f29 SK |
1927 | } |
1928 | ||
d62a17ae | 1929 | void bgp_zclient_reset(void) |
718e3744 | 1930 | { |
d62a17ae | 1931 | zclient_reset(zclient); |
718e3744 | 1932 | } |
1933 | ||
ad4cbda1 | 1934 | /* Register this instance with Zebra. Invoked upon connect (for |
1935 | * default instance) and when other VRFs are learnt (or created and | |
1936 | * already learnt). | |
1937 | */ | |
d62a17ae | 1938 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1939 | { |
d62a17ae | 1940 | /* Don't try to register if we're not connected to Zebra */ |
1941 | if (!zclient || zclient->sock < 0) | |
1942 | return; | |
ad4cbda1 | 1943 | |
d62a17ae | 1944 | if (BGP_DEBUG(zebra, ZEBRA)) |
1945 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1946 | |
d62a17ae | 1947 | /* Register for router-id, interfaces, redistributed routes. */ |
1948 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1949 | |
e2f3a930 T |
1950 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
1951 | if (bgp->advertise_all_vni) | |
d62a17ae | 1952 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
1953 | |
1954 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 1955 | } |
1956 | ||
1957 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1958 | * being deleted (default or VRF) and it is already registered. | |
1959 | */ | |
d62a17ae | 1960 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1961 | { |
d62a17ae | 1962 | /* Don't try to deregister if we're not connected to Zebra */ |
1963 | if (zclient->sock < 0) | |
1964 | return; | |
ad4cbda1 | 1965 | |
d62a17ae | 1966 | if (BGP_DEBUG(zebra, ZEBRA)) |
1967 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1968 | |
e2f3a930 T |
1969 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
1970 | if (bgp->advertise_all_vni) | |
d62a17ae | 1971 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1972 | |
d62a17ae | 1973 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1974 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1975 | } |
1976 | ||
d62a17ae | 1977 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1978 | { |
d62a17ae | 1979 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1980 | |
d62a17ae | 1981 | /* Don't try to initiate if we're not connected to Zebra */ |
1982 | if (zclient->sock < 0) | |
1983 | return; | |
4a04e5f7 | 1984 | |
d62a17ae | 1985 | if (BGP_DEBUG(zebra, ZEBRA)) |
1986 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1987 | peer->host); | |
4a04e5f7 | 1988 | |
b3a3290e DS |
1989 | /* |
1990 | * If unnumbered peer (peer->ifp) call thru zapi to start RAs. | |
1991 | * If we don't have an ifp pointer, call function to find the | |
1992 | * ifps for a numbered enhe peer to turn RAs on. | |
1993 | */ | |
1994 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
1995 | peer->ifp, 1, ra_interval) | |
1996 | : bgp_nht_reg_enhe_cap_intfs(peer); | |
4a04e5f7 | 1997 | } |
1998 | ||
d62a17ae | 1999 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2000 | { |
d62a17ae | 2001 | /* Don't try to terminate if we're not connected to Zebra */ |
2002 | if (zclient->sock < 0) | |
2003 | return; | |
4a04e5f7 | 2004 | |
d62a17ae | 2005 | if (BGP_DEBUG(zebra, ZEBRA)) |
2006 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
2007 | peer->host); | |
4a04e5f7 | 2008 | |
b3a3290e DS |
2009 | /* |
2010 | * If unnumbered peer (peer->ifp) call thru zapi to stop RAs. | |
2011 | * If we don't have an ifp pointer, call function to find the | |
2012 | * ifps for a numbered enhe peer to turn RAs off. | |
2013 | */ | |
2014 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2015 | peer->ifp, 0, 0) | |
2016 | : bgp_nht_dereg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2017 | } |
2018 | ||
31310b25 MK |
2019 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
2020 | { | |
2021 | struct stream *s = NULL; | |
2022 | ||
2023 | /* Check socket. */ | |
2024 | if (!zclient || zclient->sock < 0) | |
2025 | return 0; | |
2026 | ||
2027 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2028 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2029 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2030 | zlog_debug( |
2031 | "%s: No zebra instance to talk to, cannot advertise subnet", | |
2032 | __func__); | |
31310b25 | 2033 | return 0; |
bb4ef1ae | 2034 | } |
31310b25 MK |
2035 | |
2036 | s = zclient->obuf; | |
2037 | stream_reset(s); | |
2038 | ||
2039 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
2040 | stream_putc(s, advertise); | |
2041 | stream_put3(s, vni); | |
2042 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2043 | ||
2044 | return zclient_send_message(zclient); | |
2045 | } | |
2046 | ||
a8016157 CS |
2047 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
2048 | { | |
2049 | struct stream *s = NULL; | |
2050 | ||
2051 | /* Check socket. */ | |
2052 | if (!zclient || zclient->sock < 0) | |
2053 | return 0; | |
2054 | ||
2055 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2056 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2057 | return 0; | |
2058 | ||
2059 | s = zclient->obuf; | |
2060 | stream_reset(s); | |
2061 | ||
2062 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
2063 | stream_putc(s, advertise); | |
2064 | stream_putl(s, vni); | |
2065 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2066 | ||
2067 | return zclient_send_message(zclient); | |
2068 | } | |
2069 | ||
1a98c087 MK |
2070 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
2071 | { | |
2072 | struct stream *s = NULL; | |
2073 | ||
2074 | /* Check socket. */ | |
2075 | if (!zclient || zclient->sock < 0) | |
2076 | return 0; | |
2077 | ||
2078 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2079 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2080 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2081 | zlog_debug( |
2082 | "%s: No zebra instance to talk to, not installing gw_macip", | |
2083 | __func__); | |
1a98c087 | 2084 | return 0; |
bb4ef1ae | 2085 | } |
1a98c087 MK |
2086 | |
2087 | s = zclient->obuf; | |
2088 | stream_reset(s); | |
2089 | ||
2090 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
2091 | stream_putc(s, advertise); | |
cc6d5476 | 2092 | stream_putl(s, vni); |
1a98c087 MK |
2093 | stream_putw_at(s, 0, stream_get_endp(s)); |
2094 | ||
2095 | return zclient_send_message(zclient); | |
2096 | } | |
2097 | ||
fd069644 DS |
2098 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
2099 | enum vxlan_flood_control flood_ctrl) | |
2100 | { | |
2101 | struct stream *s; | |
2102 | ||
2103 | /* Check socket. */ | |
2104 | if (!zclient || zclient->sock < 0) | |
2105 | return 0; | |
2106 | ||
2107 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2108 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2109 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2110 | zlog_debug( |
2111 | "%s: No zebra instance to talk to, not installing all vni", | |
2112 | __func__); | |
fd069644 | 2113 | return 0; |
bb4ef1ae | 2114 | } |
fd069644 DS |
2115 | |
2116 | s = zclient->obuf; | |
2117 | stream_reset(s); | |
2118 | ||
2119 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2120 | stream_putc(s, flood_ctrl); | |
2121 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2122 | ||
2123 | return zclient_send_message(zclient); | |
2124 | } | |
2125 | ||
d62a17ae | 2126 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2127 | { |
d62a17ae | 2128 | struct stream *s; |
7724c0a1 | 2129 | |
d62a17ae | 2130 | /* Check socket. */ |
2131 | if (!zclient || zclient->sock < 0) | |
2132 | return 0; | |
7724c0a1 | 2133 | |
d62a17ae | 2134 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2135 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2136 | return 0; | |
7724c0a1 | 2137 | |
d62a17ae | 2138 | s = zclient->obuf; |
2139 | stream_reset(s); | |
7724c0a1 | 2140 | |
d62a17ae | 2141 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2142 | stream_putc(s, advertise); | |
fbac9605 DS |
2143 | /* Also inform current BUM handling setting. This is really |
2144 | * relevant only when 'advertise' is set. | |
2145 | */ | |
fd069644 | 2146 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2147 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2148 | |
d62a17ae | 2149 | return zclient_send_message(zclient); |
7724c0a1 | 2150 | } |
2151 | ||
0b9d9cd0 CS |
2152 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2153 | { | |
2154 | struct stream *s; | |
2155 | ||
2156 | /* Check socket. */ | |
2157 | if (!zclient || zclient->sock < 0) | |
2158 | return 0; | |
2159 | ||
2160 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2161 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2162 | return 0; | |
2163 | ||
2164 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2165 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2166 | bgp->evpn_info->dup_addr_detect ? | |
2167 | "enable" : "disable", | |
2168 | bgp->evpn_info->dad_max_moves, | |
2169 | bgp->evpn_info->dad_time, | |
2170 | bgp->evpn_info->dad_freeze ? | |
2171 | "enable" : "disable", | |
2172 | bgp->evpn_info->dad_freeze_time); | |
2173 | ||
2174 | s = zclient->obuf; | |
2175 | stream_reset(s); | |
2176 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2177 | bgp->vrf_id); | |
2178 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2179 | stream_putl(s, bgp->evpn_info->dad_time); | |
2180 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2181 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2182 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2183 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2184 | ||
2185 | return zclient_send_message(zclient); | |
2186 | } | |
2187 | ||
121f9dee | 2188 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2189 | { |
2190 | uint32_t seqno, priority, unique; | |
2191 | enum zapi_rule_notify_owner note; | |
2192 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2193 | struct bgp_pbr_rule *bgp_pbr = NULL; |
58a1d249 | 2194 | char ifname[INTERFACE_NAMSIZ + 1]; |
30d50e6d PG |
2195 | |
2196 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
58a1d249 | 2197 | ifname, ¬e)) |
30d50e6d PG |
2198 | return -1; |
2199 | ||
70eabd12 | 2200 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2201 | if (!bgp_pbra) { |
ffee150e PG |
2202 | /* look in bgp pbr rule */ |
2203 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2204 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2205 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2206 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
15569c58 | 2207 | __func__, unique); |
ffee150e PG |
2208 | return 0; |
2209 | } | |
30d50e6d PG |
2210 | } |
2211 | ||
2212 | switch (note) { | |
2213 | case ZAPI_RULE_FAIL_INSTALL: | |
2214 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2215 | zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__); |
ffee150e PG |
2216 | if (bgp_pbra) { |
2217 | bgp_pbra->installed = false; | |
2218 | bgp_pbra->install_in_progress = false; | |
2219 | } else { | |
2220 | bgp_pbr->installed = false; | |
2221 | bgp_pbr->install_in_progress = false; | |
2222 | } | |
30d50e6d PG |
2223 | break; |
2224 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2225 | if (bgp_pbra) { |
2226 | bgp_pbra->installed = true; | |
2227 | bgp_pbra->install_in_progress = false; | |
2228 | } else { | |
ce3c0614 PG |
2229 | struct bgp_path_info *path; |
2230 | struct bgp_path_info_extra *extra; | |
2231 | ||
ffee150e PG |
2232 | bgp_pbr->installed = true; |
2233 | bgp_pbr->install_in_progress = false; | |
2234 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2235 | /* link bgp_info to bgp_pbr */ |
2236 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2237 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2238 | listnode_add_force(&extra->bgp_fs_iprule, |
2239 | bgp_pbr); | |
ffee150e | 2240 | } |
30d50e6d | 2241 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 | 2242 | zlog_debug("%s: Received RULE_INSTALLED", __func__); |
30d50e6d | 2243 | break; |
f18a08f5 | 2244 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2245 | case ZAPI_RULE_REMOVED: |
2246 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2247 | zlog_debug("%s: Received RULE REMOVED", __func__); |
30d50e6d PG |
2248 | break; |
2249 | } | |
2250 | ||
2251 | return 0; | |
2252 | } | |
2253 | ||
121f9dee | 2254 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2255 | { |
2256 | uint32_t unique; | |
2257 | enum zapi_ipset_notify_owner note; | |
2258 | struct bgp_pbr_match *bgp_pbim; | |
2259 | ||
2260 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2261 | &unique, | |
2262 | ¬e)) | |
2263 | return -1; | |
2264 | ||
2265 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2266 | if (!bgp_pbim) { | |
2267 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2268 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
15569c58 | 2269 | __func__, note, unique); |
30d50e6d PG |
2270 | return 0; |
2271 | } | |
2272 | ||
2273 | switch (note) { | |
2274 | case ZAPI_IPSET_FAIL_INSTALL: | |
2275 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2276 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__); |
30d50e6d PG |
2277 | bgp_pbim->installed = false; |
2278 | bgp_pbim->install_in_progress = false; | |
2279 | break; | |
2280 | case ZAPI_IPSET_INSTALLED: | |
2281 | bgp_pbim->installed = true; | |
2282 | bgp_pbim->install_in_progress = false; | |
2283 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2284 | zlog_debug("%s: Received IPSET_INSTALLED", __func__); |
30d50e6d | 2285 | break; |
f18a08f5 | 2286 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2287 | case ZAPI_IPSET_REMOVED: |
2288 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2289 | zlog_debug("%s: Received IPSET REMOVED", __func__); |
30d50e6d PG |
2290 | break; |
2291 | } | |
2292 | ||
2293 | return 0; | |
2294 | } | |
2295 | ||
121f9dee | 2296 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2297 | { |
2298 | uint32_t unique; | |
2299 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2300 | enum zapi_ipset_entry_notify_owner note; | |
2301 | struct bgp_pbr_match_entry *bgp_pbime; | |
2302 | ||
2303 | if (!zapi_ipset_entry_notify_decode( | |
2304 | zclient->ibuf, | |
2305 | &unique, | |
2306 | ipset_name, | |
2307 | ¬e)) | |
2308 | return -1; | |
2309 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2310 | ipset_name, | |
2311 | unique); | |
2312 | if (!bgp_pbime) { | |
2313 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2314 | zlog_debug( |
2315 | "%s: Fail to look BGP match entry (%u, ID %u)", | |
2316 | __func__, note, unique); | |
30d50e6d PG |
2317 | return 0; |
2318 | } | |
2319 | ||
2320 | switch (note) { | |
2321 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2322 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2323 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
15569c58 | 2324 | __func__); |
30d50e6d PG |
2325 | bgp_pbime->installed = false; |
2326 | bgp_pbime->install_in_progress = false; | |
2327 | break; | |
2328 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2329 | { |
9b6d8fcf | 2330 | struct bgp_path_info *path; |
4b7e6066 DS |
2331 | struct bgp_path_info_extra *extra; |
2332 | ||
2333 | bgp_pbime->installed = true; | |
2334 | bgp_pbime->install_in_progress = false; | |
2335 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2336 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
15569c58 | 2337 | __func__); |
9b6d8fcf DS |
2338 | /* link bgp_path_info to bpme */ |
2339 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2340 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2341 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2342 | } |
30d50e6d | 2343 | break; |
f18a08f5 | 2344 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2345 | case ZAPI_IPSET_ENTRY_REMOVED: |
2346 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2347 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
15569c58 | 2348 | __func__); |
30d50e6d PG |
2349 | break; |
2350 | } | |
2351 | return 0; | |
2352 | } | |
2353 | ||
121f9dee | 2354 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2355 | { |
2356 | uint32_t unique; | |
2357 | enum zapi_iptable_notify_owner note; | |
2358 | struct bgp_pbr_match *bgpm; | |
2359 | ||
2360 | if (!zapi_iptable_notify_decode( | |
2361 | zclient->ibuf, | |
2362 | &unique, | |
2363 | ¬e)) | |
2364 | return -1; | |
2365 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2366 | if (!bgpm) { | |
2367 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed | 2368 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
15569c58 | 2369 | __func__, note, unique); |
c16a0a62 PG |
2370 | return 0; |
2371 | } | |
2372 | switch (note) { | |
2373 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2374 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2375 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
15569c58 | 2376 | __func__); |
c16a0a62 PG |
2377 | bgpm->installed_in_iptable = false; |
2378 | bgpm->install_iptable_in_progress = false; | |
2379 | break; | |
2380 | case ZAPI_IPTABLE_INSTALLED: | |
2381 | bgpm->installed_in_iptable = true; | |
2382 | bgpm->install_iptable_in_progress = false; | |
2383 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2384 | zlog_debug("%s: Received IPTABLE_INSTALLED", __func__); |
a6b07429 | 2385 | bgpm->action->refcnt++; |
c16a0a62 | 2386 | break; |
f18a08f5 | 2387 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2388 | case ZAPI_IPTABLE_REMOVED: |
2389 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2390 | zlog_debug("%s: Received IPTABLE REMOVED", __func__); |
c16a0a62 PG |
2391 | break; |
2392 | } | |
2393 | return 0; | |
2394 | } | |
2395 | ||
a77e2f4b S |
2396 | /* Process route notification messages from RIB */ |
2397 | static int bgp_zebra_route_notify_owner(int command, struct zclient *zclient, | |
2398 | zebra_size_t length, vrf_id_t vrf_id) | |
2399 | { | |
2400 | struct prefix p; | |
2401 | enum zapi_route_notify_owner note; | |
2402 | uint32_t table_id; | |
2403 | char buf[PREFIX_STRLEN]; | |
2404 | afi_t afi; | |
2405 | safi_t safi; | |
2406 | struct bgp_dest *dest; | |
2407 | struct bgp *bgp; | |
2408 | struct bgp_path_info *pi, *new_select; | |
2409 | ||
2410 | if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, ¬e, | |
2411 | &afi, &safi)) { | |
2412 | zlog_err("%s : error in msg decode", __PRETTY_FUNCTION__); | |
2413 | return -1; | |
2414 | } | |
2415 | ||
2416 | /* Get the bgp instance */ | |
2417 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2418 | if (!bgp) { | |
2419 | flog_err(EC_BGP_INVALID_BGP_INSTANCE, | |
2420 | "%s : bgp instance not found vrf %d", | |
2421 | __PRETTY_FUNCTION__, vrf_id); | |
2422 | return -1; | |
2423 | } | |
2424 | ||
2425 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2426 | prefix2str(&p, buf, sizeof(buf)); | |
2427 | ||
2428 | /* Find the bgp route node */ | |
2429 | dest = bgp_afi_node_lookup(bgp->rib[afi][safi], afi, safi, &p, | |
2430 | &bgp->vrf_prd); | |
2431 | if (!dest) | |
2432 | return -1; | |
2433 | ||
2434 | bgp_dest_unlock_node(dest); | |
2435 | ||
2436 | switch (note) { | |
2437 | case ZAPI_ROUTE_INSTALLED: | |
2438 | new_select = NULL; | |
2439 | /* Clear the flags so that route can be processed */ | |
2440 | if (CHECK_FLAG(dest->flags, | |
2441 | BGP_NODE_FIB_INSTALL_PENDING)) { | |
2442 | UNSET_FLAG(dest->flags, | |
2443 | BGP_NODE_FIB_INSTALL_PENDING); | |
2444 | SET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2445 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2446 | zlog_debug("route %s : INSTALLED", buf); | |
2447 | /* Find the best route */ | |
2448 | for (pi = dest->info; pi; pi = pi->next) { | |
2449 | /* Process aggregate route */ | |
2450 | bgp_aggregate_increment(bgp, &p, pi, | |
2451 | afi, safi); | |
2452 | if (CHECK_FLAG(pi->flags, | |
2453 | BGP_PATH_SELECTED)) | |
2454 | new_select = pi; | |
2455 | } | |
2456 | /* Advertise the route */ | |
2457 | if (new_select) | |
2458 | group_announce_route(bgp, afi, safi, | |
2459 | dest, new_select); | |
2460 | else { | |
2461 | flog_err(EC_BGP_INVALID_ROUTE, | |
2462 | "selected route %s not found", | |
2463 | buf); | |
2464 | return -1; | |
2465 | } | |
2466 | } | |
2467 | break; | |
2468 | case ZAPI_ROUTE_REMOVED: | |
2469 | /* Route deleted from dataplane, reset the installed flag | |
2470 | * so that route can be reinstalled when client sends | |
2471 | * route add later | |
2472 | */ | |
2473 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2474 | break; | |
2475 | case ZAPI_ROUTE_FAIL_INSTALL: | |
2476 | /* Error will be logged by zebra module */ | |
2477 | break; | |
2478 | case ZAPI_ROUTE_BETTER_ADMIN_WON: | |
2479 | /* No action required */ | |
2480 | break; | |
2481 | case ZAPI_ROUTE_REMOVE_FAIL: | |
2482 | zlog_warn("%s: Route %s failure to remove", | |
2483 | __func__, buf); | |
2484 | break; | |
2485 | } | |
2486 | return 0; | |
2487 | } | |
2488 | ||
6cfe5d15 PG |
2489 | /* this function is used to forge ip rule, |
2490 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2491 | * - or for sample ip rule cmd |
6cfe5d15 | 2492 | */ |
30d50e6d | 2493 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2494 | struct bgp_pbr_action *pbra, |
2495 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2496 | { |
6cfe5d15 | 2497 | struct prefix pfx; |
f01e580f | 2498 | uint8_t fam = AF_INET; |
e95666cb | 2499 | char ifname[INTERFACE_NAMSIZ]; |
30d50e6d | 2500 | |
9f1f03ec | 2501 | if (pbra->nh.type == NEXTHOP_TYPE_IPV6) |
f01e580f | 2502 | fam = AF_INET6; |
30d50e6d | 2503 | stream_putl(s, 0); /* seqno unused */ |
8112a7a0 PG |
2504 | if (pbr) |
2505 | stream_putl(s, pbr->priority); | |
2506 | else | |
2507 | stream_putl(s, 0); | |
2508 | /* ruleno unused - priority change | |
2509 | * ruleno permits distinguishing various FS PBR entries | |
2510 | * - FS PBR entries based on ipset/iptables | |
2511 | * - FS PBR entries based on iprule | |
2512 | * the latter may contain default routing information injected by FS | |
2513 | */ | |
6cfe5d15 PG |
2514 | if (pbr) |
2515 | stream_putl(s, pbr->unique); | |
2516 | else | |
2517 | stream_putl(s, pbra->unique); | |
2518 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) | |
2519 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2520 | else { | |
2521 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2522 | pfx.family = fam; |
6cfe5d15 PG |
2523 | } |
2524 | stream_putc(s, pfx.family); | |
2525 | stream_putc(s, pfx.prefixlen); | |
2526 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2527 | |
2528 | stream_putw(s, 0); /* src port */ | |
2529 | ||
6cfe5d15 PG |
2530 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2531 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2532 | else { | |
2533 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2534 | pfx.family = fam; |
6cfe5d15 PG |
2535 | } |
2536 | stream_putc(s, pfx.family); | |
2537 | stream_putc(s, pfx.prefixlen); | |
2538 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2539 | |
2540 | stream_putw(s, 0); /* dst port */ | |
e95666cb | 2541 | stream_putc(s, 0); /* dsfield */ |
6cfe5d15 PG |
2542 | /* if pbr present, fwmark is not used */ |
2543 | if (pbr) | |
2544 | stream_putl(s, 0); | |
2545 | else | |
2546 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d PG |
2547 | |
2548 | stream_putl(s, pbra->table_id); | |
2549 | ||
e95666cb DS |
2550 | memset(ifname, 0, sizeof(ifname)); |
2551 | stream_put(s, ifname, INTERFACE_NAMSIZ); /* ifname unused */ | |
30d50e6d PG |
2552 | } |
2553 | ||
2554 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2555 | struct bgp_pbr_match *pbim) | |
2556 | { | |
2557 | stream_putl(s, pbim->unique); | |
2558 | stream_putl(s, pbim->type); | |
a60b7031 | 2559 | stream_putc(s, pbim->family); |
30d50e6d PG |
2560 | stream_put(s, pbim->ipset_name, |
2561 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2562 | } |
2563 | ||
2564 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2565 | struct bgp_pbr_match_entry *pbime) | |
2566 | { | |
2567 | stream_putl(s, pbime->unique); | |
2568 | /* check that back pointer is not null */ | |
2569 | stream_put(s, pbime->backpointer->ipset_name, | |
2570 | ZEBRA_IPSET_NAME_SIZE); | |
2571 | ||
2572 | stream_putc(s, pbime->src.family); | |
2573 | stream_putc(s, pbime->src.prefixlen); | |
2574 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2575 | ||
2576 | stream_putc(s, pbime->dst.family); | |
2577 | stream_putc(s, pbime->dst.prefixlen); | |
2578 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2579 | |
2580 | stream_putw(s, pbime->src_port_min); | |
2581 | stream_putw(s, pbime->src_port_max); | |
2582 | stream_putw(s, pbime->dst_port_min); | |
2583 | stream_putw(s, pbime->dst_port_max); | |
2584 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2585 | } |
2586 | ||
c16a0a62 PG |
2587 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2588 | struct bgp_pbr_action *bpa, | |
2589 | struct bgp_pbr_match *pbm) | |
2590 | { | |
2591 | stream_putl(s, pbm->unique2); | |
2592 | ||
2593 | stream_putl(s, pbm->type); | |
2594 | ||
2595 | stream_putl(s, pbm->flags); | |
2596 | ||
2597 | /* TODO: correlate with what is contained | |
2598 | * into bgp_pbr_action. | |
2599 | * currently only forward supported | |
2600 | */ | |
2601 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2602 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2603 | else | |
2604 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2605 | stream_putl(s, bpa->fwmark); | |
2606 | stream_put(s, pbm->ipset_name, | |
2607 | ZEBRA_IPSET_NAME_SIZE); | |
a60b7031 | 2608 | stream_putc(s, pbm->family); |
83360720 PG |
2609 | stream_putw(s, pbm->pkt_len_min); |
2610 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2611 | stream_putw(s, pbm->tcp_flags); |
2612 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2613 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2614 | stream_putc(s, pbm->fragment); |
f449d223 | 2615 | stream_putc(s, pbm->protocol); |
a60b7031 | 2616 | stream_putw(s, pbm->flow_label); |
c16a0a62 PG |
2617 | } |
2618 | ||
ad4cbda1 | 2619 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2620 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2621 | { |
d62a17ae | 2622 | struct bgp *bgp; |
7076bb2f | 2623 | |
d62a17ae | 2624 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2625 | |
d62a17ae | 2626 | /* At this point, we may or may not have BGP instances configured, but |
2627 | * we're only interested in the default VRF (others wouldn't have learnt | |
2628 | * the VRF from Zebra yet.) | |
2629 | */ | |
2630 | bgp = bgp_get_default(); | |
2631 | if (!bgp) | |
2632 | return; | |
ad4cbda1 | 2633 | |
d62a17ae | 2634 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2635 | |
d62a17ae | 2636 | /* Send the client registration */ |
0945d5ed | 2637 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, bgp->vrf_id); |
2376c3f2 | 2638 | |
955bfd98 | 2639 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2640 | bgp_lp_event_zebra_up(); |
955bfd98 | 2641 | |
d62a17ae | 2642 | /* TODO - What if we have peers and networks configured, do we have to |
2643 | * kick-start them? | |
2644 | */ | |
85ef4179 | 2645 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer); |
7076bb2f FL |
2646 | } |
2647 | ||
c44ab6f1 AK |
2648 | static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS) |
2649 | { | |
2650 | esi_t esi; | |
2651 | struct bgp *bgp = NULL; | |
2652 | struct stream *s = NULL; | |
2653 | char buf[ESI_STR_LEN]; | |
2654 | struct in_addr originator_ip; | |
2655 | uint8_t active; | |
74e2bd89 | 2656 | uint16_t df_pref; |
c44ab6f1 AK |
2657 | |
2658 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2659 | if (!bgp) | |
2660 | return 0; | |
2661 | ||
2662 | s = zclient->ibuf; | |
2663 | stream_get(&esi, s, sizeof(esi_t)); | |
2664 | originator_ip.s_addr = stream_get_ipv4(s); | |
2665 | active = stream_getc(s); | |
74e2bd89 | 2666 | df_pref = stream_getw(s); |
c44ab6f1 AK |
2667 | |
2668 | if (BGP_DEBUG(zebra, ZEBRA)) | |
74e2bd89 AK |
2669 | zlog_debug( |
2670 | "Rx add ESI %s originator-ip %pI4 active %u df_pref %u", | |
2671 | esi_to_str(&esi, buf, sizeof(buf)), | |
2672 | &originator_ip, active, df_pref); | |
c44ab6f1 | 2673 | |
74e2bd89 | 2674 | bgp_evpn_local_es_add(bgp, &esi, originator_ip, active, df_pref); |
c44ab6f1 AK |
2675 | |
2676 | return 0; | |
2677 | } | |
2678 | ||
2679 | static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS) | |
50f74cf1 | 2680 | { |
2681 | esi_t esi; | |
2682 | struct bgp *bgp = NULL; | |
2683 | struct stream *s = NULL; | |
2684 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2685 | |
2686 | memset(&esi, 0, sizeof(esi_t)); | |
c44ab6f1 AK |
2687 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2688 | if (!bgp) | |
2689 | return 0; | |
2690 | ||
2691 | s = zclient->ibuf; | |
2692 | stream_get(&esi, s, sizeof(esi_t)); | |
2693 | ||
2694 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2695 | zlog_debug("Rx del ESI %s", | |
2696 | esi_to_str(&esi, buf, sizeof(buf))); | |
2697 | ||
2698 | bgp_evpn_local_es_del(bgp, &esi); | |
2699 | ||
2700 | return 0; | |
2701 | } | |
2702 | ||
2703 | static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS) | |
2704 | { | |
2705 | esi_t esi; | |
2706 | vni_t vni; | |
2707 | struct bgp *bgp; | |
2708 | struct stream *s; | |
2709 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2710 | |
2711 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2712 | if (!bgp) | |
2713 | return 0; | |
2714 | ||
2715 | s = zclient->ibuf; | |
2716 | stream_get(&esi, s, sizeof(esi_t)); | |
c44ab6f1 | 2717 | vni = stream_getl(s); |
50f74cf1 | 2718 | |
2719 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c44ab6f1 AK |
2720 | zlog_debug("Rx %s ESI %s VNI %u", |
2721 | ZEBRA_VNI_ADD ? "add" : "del", | |
2722 | esi_to_str(&esi, buf, sizeof(buf)), vni); | |
50f74cf1 | 2723 | |
c44ab6f1 AK |
2724 | if (cmd == ZEBRA_LOCAL_ES_EVI_ADD) |
2725 | bgp_evpn_local_es_evi_add(bgp, &esi, vni); | |
50f74cf1 | 2726 | else |
c44ab6f1 AK |
2727 | bgp_evpn_local_es_evi_del(bgp, &esi, vni); |
2728 | ||
50f74cf1 | 2729 | return 0; |
2730 | } | |
2731 | ||
121f9dee | 2732 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 2733 | { |
c48d9f5f | 2734 | int filter = 0; |
fe1dc5a3 | 2735 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 2736 | vni_t l3vni = 0; |
14e814ea | 2737 | struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} }; |
b67a60d2 | 2738 | struct in_addr originator_ip; |
fe1dc5a3 | 2739 | struct stream *s; |
0483af6e | 2740 | ifindex_t svi_ifindex; |
14e814ea CS |
2741 | bool is_anycast_mac = false; |
2742 | char buf1[ETHER_ADDR_STRLEN]; | |
fe1dc5a3 | 2743 | |
14e814ea | 2744 | memset(&svi_rmac, 0, sizeof(struct ethaddr)); |
b67a60d2 | 2745 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2746 | s = zclient->ibuf; |
2747 | l3vni = stream_getl(s); | |
b67a60d2 | 2748 | if (cmd == ZEBRA_L3VNI_ADD) { |
14e814ea | 2749 | stream_get(&svi_rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2750 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2751 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2752 | svi_ifindex = stream_getl(s); |
14e814ea CS |
2753 | stream_get(&vrr_rmac, s, sizeof(struct ethaddr)); |
2754 | is_anycast_mac = stream_getl(s); | |
fe1dc5a3 | 2755 | |
0483af6e | 2756 | if (BGP_DEBUG(zebra, ZEBRA)) |
14e814ea | 2757 | zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %s vrr-mac %s filter %s svi-if %u", |
0483af6e | 2758 | vrf_id_to_name(vrf_id), l3vni, |
14e814ea CS |
2759 | prefix_mac2str(&svi_rmac, buf, sizeof(buf)), |
2760 | prefix_mac2str(&vrr_rmac, buf1, | |
2761 | sizeof(buf1)), | |
0483af6e | 2762 | filter ? "prefix-routes-only" : "none", |
2763 | svi_ifindex); | |
fe1dc5a3 | 2764 | |
14e814ea CS |
2765 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac, |
2766 | originator_ip, filter, svi_ifindex, | |
2767 | is_anycast_mac); | |
0483af6e | 2768 | } else { |
2769 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2770 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2771 | vrf_id_to_name(vrf_id), l3vni); | |
2772 | ||
fe1dc5a3 | 2773 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 2774 | } |
fe1dc5a3 MK |
2775 | |
2776 | return 0; | |
2777 | } | |
2778 | ||
121f9dee | 2779 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2780 | { |
d62a17ae | 2781 | struct stream *s; |
2782 | vni_t vni; | |
2783 | struct bgp *bgp; | |
a4d82a8a | 2784 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2785 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 2786 | struct in_addr mcast_grp = {INADDR_ANY}; |
d62a17ae | 2787 | |
2788 | s = zclient->ibuf; | |
2789 | vni = stream_getl(s); | |
121f9dee | 2790 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 2791 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 2792 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 2793 | mcast_grp.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2794 | } |
2795 | ||
d62a17ae | 2796 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2797 | if (!bgp) | |
2798 | return 0; | |
2799 | ||
2800 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 | 2801 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
121f9dee | 2802 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
a4d82a8a PZ |
2803 | vrf_id_to_name(vrf_id), vni, |
2804 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2805 | |
121f9dee | 2806 | if (cmd == ZEBRA_VNI_ADD) |
d62a17ae | 2807 | return bgp_evpn_local_vni_add( |
975a328e DA |
2808 | bgp, vni, |
2809 | vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id, | |
76d07c7a | 2810 | tenant_vrf_id, mcast_grp); |
d62a17ae | 2811 | else |
2812 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2813 | } |
2814 | ||
121f9dee | 2815 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2816 | { |
d62a17ae | 2817 | struct stream *s; |
2818 | vni_t vni; | |
2819 | struct bgp *bgp; | |
2820 | struct ethaddr mac; | |
2821 | struct ipaddr ip; | |
2822 | int ipa_len; | |
2823 | char buf[ETHER_ADDR_STRLEN]; | |
2824 | char buf1[INET6_ADDRSTRLEN]; | |
f07e1c99 | 2825 | uint8_t flags = 0; |
2826 | uint32_t seqnum = 0; | |
ec0ab544 | 2827 | int state = 0; |
c44ab6f1 AK |
2828 | char buf2[ESI_STR_LEN]; |
2829 | esi_t esi; | |
d62a17ae | 2830 | |
2831 | memset(&ip, 0, sizeof(ip)); | |
2832 | s = zclient->ibuf; | |
2833 | vni = stream_getl(s); | |
28328ea9 | 2834 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2835 | ipa_len = stream_getl(s); |
2836 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2837 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 2838 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 2839 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 2840 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 2841 | ipa_len); |
d62a17ae | 2842 | return -1; |
2843 | } | |
2844 | ||
2845 | if (ipa_len) { | |
2846 | ip.ipa_type = | |
2847 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2848 | stream_get(&ip.ip.addr, s, ipa_len); | |
2849 | } | |
121f9dee | 2850 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 2851 | flags = stream_getc(s); |
2852 | seqnum = stream_getl(s); | |
c44ab6f1 | 2853 | stream_get(&esi, s, sizeof(esi_t)); |
ec0ab544 AK |
2854 | } else { |
2855 | state = stream_getl(s); | |
35fb444b | 2856 | memset(&esi, 0, sizeof(esi_t)); |
f07e1c99 | 2857 | } |
d62a17ae | 2858 | |
2859 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2860 | if (!bgp) | |
2861 | return 0; | |
2862 | ||
2863 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c44ab6f1 | 2864 | zlog_debug("%u:Recv MACIP %s f 0x%x MAC %s IP %s VNI %u seq %u state %d ESI %s", |
121f9dee | 2865 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1a98c087 | 2866 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), |
ec0ab544 | 2867 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum, |
c44ab6f1 | 2868 | state, esi_to_str(&esi, buf2, sizeof(buf2))); |
d62a17ae | 2869 | |
121f9dee | 2870 | if (cmd == ZEBRA_MACIP_ADD) |
f07e1c99 | 2871 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
c44ab6f1 | 2872 | flags, seqnum, &esi); |
d62a17ae | 2873 | else |
ec0ab544 | 2874 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
128ea8ab | 2875 | } |
6aeb9e78 | 2876 | |
121f9dee | 2877 | static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
2878 | { |
2879 | struct stream *s = NULL; | |
2880 | struct bgp *bgp_vrf = NULL; | |
2881 | struct prefix p; | |
31310b25 MK |
2882 | |
2883 | memset(&p, 0, sizeof(struct prefix)); | |
2884 | s = zclient->ibuf; | |
2885 | stream_get(&p, s, sizeof(struct prefix)); | |
2886 | ||
2887 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2888 | if (!bgp_vrf) | |
2889 | return; | |
2890 | ||
2891 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2dbe669b | 2892 | zlog_debug("Recv prefix %pFX %s on vrf %s", &p, |
31310b25 MK |
2893 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", |
2894 | vrf_id_to_name(vrf_id)); | |
2895 | ||
2896 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2897 | ||
2898 | if (p.family == AF_INET) | |
d90b788e A |
2899 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2900 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 2901 | else |
d90b788e A |
2902 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2903 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2904 | |
2905 | } else { | |
2906 | if (p.family == AF_INET) | |
d90b788e A |
2907 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
2908 | SAFI_UNICAST); | |
31310b25 | 2909 | else |
d90b788e A |
2910 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
2911 | SAFI_UNICAST); | |
31310b25 MK |
2912 | } |
2913 | } | |
2914 | ||
121f9dee | 2915 | static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
2916 | { |
2917 | struct stream *s = NULL; | |
2918 | uint8_t response_keep; | |
2919 | uint32_t first; | |
2920 | uint32_t last; | |
aec865e4 FR |
2921 | uint8_t proto; |
2922 | unsigned short instance; | |
955bfd98 PZ |
2923 | |
2924 | s = zclient->ibuf; | |
aec865e4 FR |
2925 | STREAM_GETC(s, proto); |
2926 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2927 | STREAM_GETC(s, response_keep); |
2928 | STREAM_GETL(s, first); | |
2929 | STREAM_GETL(s, last); | |
2930 | ||
aec865e4 | 2931 | if (zclient->redist_default != proto) { |
e50f7cfd | 2932 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 2933 | proto); |
aec865e4 FR |
2934 | return; |
2935 | } | |
2936 | if (zclient->instance != instance) { | |
e50f7cfd | 2937 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 2938 | proto); |
aec865e4 FR |
2939 | return; |
2940 | } | |
2941 | ||
955bfd98 PZ |
2942 | if (first > last || |
2943 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2944 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2945 | ||
e50f7cfd | 2946 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 2947 | __func__, first, last); |
955bfd98 PZ |
2948 | return; |
2949 | } | |
2950 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2951 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2952 | first, last, response_keep); | |
2953 | } | |
2954 | ||
e70e9f8e | 2955 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2956 | |
2957 | stream_failure: /* for STREAM_GETX */ | |
2958 | return; | |
2959 | } | |
2960 | ||
342213ea DS |
2961 | extern struct zebra_privs_t bgpd_privs; |
2962 | ||
138c5a74 DS |
2963 | static int bgp_ifp_create(struct interface *ifp) |
2964 | { | |
ef7bd2a3 DS |
2965 | struct bgp *bgp; |
2966 | ||
2967 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2968 | zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name); | |
2969 | ||
2970 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); | |
2971 | if (!bgp) | |
2972 | return 0; | |
2973 | ||
2974 | bgp_mac_add_mac_entry(ifp); | |
2975 | ||
2976 | bgp_update_interface_nbrs(bgp, ifp, ifp); | |
138c5a74 DS |
2977 | return 0; |
2978 | } | |
2979 | ||
f533be73 | 2980 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2981 | { |
d62a17ae | 2982 | zclient_num_connects = 0; |
2983 | ||
138c5a74 DS |
2984 | if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up, |
2985 | bgp_ifp_down, bgp_ifp_destroy); | |
2986 | ||
d62a17ae | 2987 | /* Set default values. */ |
26f63a1e | 2988 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2989 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2990 | zclient->zebra_connected = bgp_zebra_connected; |
2991 | zclient->router_id_update = bgp_router_id_update; | |
d62a17ae | 2992 | zclient->interface_address_add = bgp_interface_address_add; |
2993 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2994 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2995 | zclient->interface_nbr_address_delete = | |
2996 | bgp_interface_nbr_address_delete; | |
2997 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2998 | zclient->redistribute_route_add = zebra_read_route; |
2999 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 3000 | zclient->nexthop_update = bgp_read_nexthop_update; |
3001 | zclient->import_check_update = bgp_read_import_check_update; | |
3002 | zclient->fec_update = bgp_read_fec_update; | |
c44ab6f1 AK |
3003 | zclient->local_es_add = bgp_zebra_process_local_es_add; |
3004 | zclient->local_es_del = bgp_zebra_process_local_es_del; | |
d62a17ae | 3005 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
c44ab6f1 AK |
3006 | zclient->local_es_evi_add = bgp_zebra_process_local_es_evi; |
3007 | zclient->local_es_evi_del = bgp_zebra_process_local_es_evi; | |
d62a17ae | 3008 | zclient->local_vni_del = bgp_zebra_process_local_vni; |
3009 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
3010 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
3011 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
3012 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
3013 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
3014 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 3015 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
3016 | zclient->rule_notify_owner = rule_notify_owner; |
3017 | zclient->ipset_notify_owner = ipset_notify_owner; | |
3018 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 3019 | zclient->iptable_notify_owner = iptable_notify_owner; |
a77e2f4b | 3020 | zclient->route_notify_owner = bgp_zebra_route_notify_owner; |
f533be73 | 3021 | zclient->instance = instance; |
718e3744 | 3022 | } |
bb86c601 | 3023 | |
d62a17ae | 3024 | void bgp_zebra_destroy(void) |
bb86c601 | 3025 | { |
d62a17ae | 3026 | if (zclient == NULL) |
3027 | return; | |
3028 | zclient_stop(zclient); | |
3029 | zclient_free(zclient); | |
3030 | zclient = NULL; | |
bb86c601 | 3031 | } |
afbb1c59 | 3032 | |
d62a17ae | 3033 | int bgp_zebra_num_connects(void) |
afbb1c59 | 3034 | { |
d62a17ae | 3035 | return zclient_num_connects; |
afbb1c59 | 3036 | } |
30d50e6d | 3037 | |
6cfe5d15 PG |
3038 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
3039 | struct bgp_pbr_rule *pbr, | |
3040 | bool install) | |
30d50e6d PG |
3041 | { |
3042 | struct stream *s; | |
3043 | ||
6cfe5d15 | 3044 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 3045 | return; |
6cfe5d15 PG |
3046 | if (pbr && pbr->install_in_progress) |
3047 | return; | |
3048 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3049 | if (pbr) | |
15569c58 | 3050 | zlog_debug("%s: table %d (ip rule) %d", __func__, |
6cfe5d15 PG |
3051 | pbra->table_id, install); |
3052 | else | |
15569c58 | 3053 | zlog_debug("%s: table %d fwmark %d %d", __func__, |
6cfe5d15 PG |
3054 | pbra->table_id, pbra->fwmark, install); |
3055 | } | |
30d50e6d PG |
3056 | s = zclient->obuf; |
3057 | stream_reset(s); | |
3058 | ||
3059 | zclient_create_header(s, | |
3060 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
3061 | VRF_DEFAULT); | |
3062 | stream_putl(s, 1); /* send one pbr action */ | |
3063 | ||
6cfe5d15 | 3064 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
3065 | |
3066 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e DS |
3067 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) |
3068 | && install) { | |
6cfe5d15 PG |
3069 | if (!pbr) |
3070 | pbra->install_in_progress = true; | |
3071 | else | |
3072 | pbr->install_in_progress = true; | |
3073 | } | |
30d50e6d PG |
3074 | } |
3075 | ||
3076 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
3077 | { | |
3078 | struct stream *s; | |
3079 | ||
3080 | if (pbrim->install_in_progress) | |
3081 | return; | |
f0936054 | 3082 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3083 | zlog_debug("%s: name %s type %d %d, ID %u", __func__, |
3084 | pbrim->ipset_name, pbrim->type, install, | |
3085 | pbrim->unique); | |
30d50e6d PG |
3086 | s = zclient->obuf; |
3087 | stream_reset(s); | |
3088 | ||
3089 | zclient_create_header(s, | |
3090 | install ? ZEBRA_IPSET_CREATE : | |
3091 | ZEBRA_IPSET_DESTROY, | |
3092 | VRF_DEFAULT); | |
3093 | ||
3094 | stream_putl(s, 1); /* send one pbr action */ | |
3095 | ||
3096 | bgp_encode_pbr_ipset_match(s, pbrim); | |
3097 | ||
3098 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3099 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3100 | pbrim->install_in_progress = true; |
3101 | } | |
3102 | ||
3103 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
3104 | bool install) | |
3105 | { | |
3106 | struct stream *s; | |
3107 | ||
3108 | if (pbrime->install_in_progress) | |
3109 | return; | |
f0936054 | 3110 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3111 | zlog_debug("%s: name %s %d %d, ID %u", __func__, |
3112 | pbrime->backpointer->ipset_name, pbrime->unique, | |
3113 | install, pbrime->unique); | |
30d50e6d PG |
3114 | s = zclient->obuf; |
3115 | stream_reset(s); | |
3116 | ||
3117 | zclient_create_header(s, | |
3118 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
3119 | ZEBRA_IPSET_ENTRY_DELETE, | |
3120 | VRF_DEFAULT); | |
3121 | ||
3122 | stream_putl(s, 1); /* send one pbr action */ | |
3123 | ||
3124 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
3125 | ||
3126 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3127 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3128 | pbrime->install_in_progress = true; |
3129 | } | |
c16a0a62 | 3130 | |
8f242187 PG |
3131 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s, |
3132 | uint8_t family) | |
4762c213 PG |
3133 | { |
3134 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3135 | struct bgp_pbr_interface_head *head; | |
3136 | struct bgp_pbr_interface *pbr_if; | |
3137 | struct interface *ifp; | |
3138 | ||
3139 | if (!bgp_pbr_cfg) | |
3140 | return; | |
8f242187 PG |
3141 | if (family == AF_INET) |
3142 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3143 | else | |
3144 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3145 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3146 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); |
4762c213 PG |
3147 | if (ifp) |
3148 | stream_putl(s, ifp->ifindex); | |
3149 | } | |
3150 | } | |
3151 | ||
8f242187 | 3152 | static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family) |
4762c213 PG |
3153 | { |
3154 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3155 | struct bgp_pbr_interface_head *head; | |
3156 | struct bgp_pbr_interface *pbr_if; | |
3157 | int cnt = 0; | |
3158 | ||
3159 | if (!bgp_pbr_cfg) | |
3160 | return 0; | |
8f242187 PG |
3161 | if (family == AF_INET) |
3162 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3163 | else | |
3164 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3165 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3166 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) |
4762c213 PG |
3167 | cnt++; |
3168 | } | |
3169 | return cnt; | |
3170 | } | |
3171 | ||
c16a0a62 PG |
3172 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
3173 | struct bgp_pbr_match *pbm, | |
3174 | bool install) | |
3175 | { | |
3176 | struct stream *s; | |
b5c40105 | 3177 | int ret = 0; |
4762c213 | 3178 | int nb_interface; |
c16a0a62 PG |
3179 | |
3180 | if (pbm->install_iptable_in_progress) | |
3181 | return; | |
f0936054 | 3182 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3183 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__, |
3184 | pbm->ipset_name, pbm->type, pba->fwmark, install, | |
88055124 | 3185 | pbm->unique2); |
c16a0a62 PG |
3186 | s = zclient->obuf; |
3187 | stream_reset(s); | |
3188 | ||
3189 | zclient_create_header(s, | |
3190 | install ? ZEBRA_IPTABLE_ADD : | |
3191 | ZEBRA_IPTABLE_DELETE, | |
3192 | VRF_DEFAULT); | |
3193 | ||
3194 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
8f242187 | 3195 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family); |
4762c213 PG |
3196 | stream_putl(s, nb_interface); |
3197 | if (nb_interface) | |
8f242187 | 3198 | bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family); |
c16a0a62 | 3199 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
3200 | ret = zclient_send_message(zclient); |
3201 | if (install) { | |
8a3f8f2e | 3202 | if (ret != ZCLIENT_SEND_FAILURE) |
b5c40105 PG |
3203 | pba->refcnt++; |
3204 | else | |
3205 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 3206 | } |
c16a0a62 | 3207 | } |
f7df1907 PG |
3208 | |
3209 | /* inject in table <table_id> a default route to: | |
3210 | * - if nexthop IP is present : to this nexthop | |
3211 | * - if vrf is different from local : to the matching VRF | |
3212 | */ | |
3213 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
3214 | afi_t afi, uint32_t table_id, bool announce) | |
3215 | { | |
3216 | struct zapi_nexthop *api_nh; | |
3217 | struct zapi_route api; | |
3218 | struct prefix p; | |
3219 | ||
f01e580f PG |
3220 | if (!nh || (nh->type != NEXTHOP_TYPE_IPV4 |
3221 | && nh->type != NEXTHOP_TYPE_IPV6) | |
f7df1907 PG |
3222 | || nh->vrf_id == VRF_UNKNOWN) |
3223 | return; | |
3224 | memset(&p, 0, sizeof(struct prefix)); | |
f01e580f | 3225 | if (afi != AFI_IP && afi != AFI_IP6) |
f7df1907 | 3226 | return; |
f01e580f | 3227 | p.family = afi2family(afi); |
f7df1907 PG |
3228 | memset(&api, 0, sizeof(api)); |
3229 | api.vrf_id = bgp->vrf_id; | |
3230 | api.type = ZEBRA_ROUTE_BGP; | |
3231 | api.safi = SAFI_UNICAST; | |
3232 | api.prefix = p; | |
3233 | api.tableid = table_id; | |
3234 | api.nexthop_num = 1; | |
3235 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
3236 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
3237 | api_nh = &api.nexthops[0]; | |
3238 | ||
38a8c751 DS |
3239 | api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT; |
3240 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
3241 | ||
f7df1907 | 3242 | /* redirect IP */ |
f01e580f | 3243 | if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) { |
f7df1907 PG |
3244 | char buff[PREFIX_STRLEN]; |
3245 | ||
3246 | api_nh->vrf_id = nh->vrf_id; | |
3247 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
3248 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
3249 | ||
3250 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
3251 | if (BGP_DEBUG(zebra, ZEBRA)) | |
f01e580f PG |
3252 | zlog_debug("BGP: %s default route to %s table %d (redirect IP)", |
3253 | announce ? "adding" : "withdrawing", | |
3254 | buff, table_id); | |
3255 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3256 | : ZEBRA_ROUTE_DELETE, | |
3257 | zclient, &api); | |
3258 | } else if (afi == AFI_IP6 && | |
3259 | memcmp(&nh->gate.ipv6, | |
3260 | &in6addr_any, sizeof(struct in6_addr))) { | |
3261 | char buff[PREFIX_STRLEN]; | |
3262 | ||
3263 | api_nh->vrf_id = nh->vrf_id; | |
3264 | memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, | |
3265 | sizeof(struct in6_addr)); | |
3266 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
3267 | ||
3268 | inet_ntop(AF_INET6, &(nh->gate.ipv6), buff, INET_ADDRSTRLEN); | |
3269 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3270 | zlog_debug("BGP: %s default route to %s table %d (redirect IP)", | |
d887503c | 3271 | announce ? "adding" : "withdrawing", |
f7df1907 PG |
3272 | buff, table_id); |
3273 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3274 | : ZEBRA_ROUTE_DELETE, | |
3275 | zclient, &api); | |
3276 | } else if (nh->vrf_id != bgp->vrf_id) { | |
3277 | struct vrf *vrf; | |
eb4244f8 | 3278 | struct interface *ifp; |
f7df1907 | 3279 | |
eb4244f8 | 3280 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
3281 | if (!vrf) |
3282 | return; | |
eb4244f8 PG |
3283 | /* create default route with interface <VRF> |
3284 | * with nexthop-vrf <VRF> | |
f7df1907 | 3285 | */ |
eb4244f8 PG |
3286 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
3287 | if (!ifp) | |
3288 | return; | |
3289 | api_nh->vrf_id = nh->vrf_id; | |
3290 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
3291 | api_nh->ifindex = ifp->ifindex; | |
3292 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3293 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
3294 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
3295 | vrf->name, table_id); |
3296 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3297 | : ZEBRA_ROUTE_DELETE, | |
3298 | zclient, &api); | |
f7df1907 PG |
3299 | return; |
3300 | } | |
3301 | } | |
85ef4179 | 3302 | |
3303 | /* Send capabilities to RIB */ | |
3304 | int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable) | |
3305 | { | |
3306 | struct zapi_cap api; | |
3307 | int ret = BGP_GR_SUCCESS; | |
3308 | ||
3309 | if (zclient == NULL) { | |
3310 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3311 | zlog_debug("zclient invalid"); | |
3312 | return BGP_GR_FAILURE; | |
3313 | } | |
3314 | ||
3315 | /* Check if the client is connected */ | |
3316 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3317 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3318 | zlog_debug("client not connected"); | |
3319 | return BGP_GR_FAILURE; | |
3320 | } | |
3321 | ||
3322 | /* Check if capability is already sent. If the flag force is set | |
3323 | * send the capability since this can be initial bgp configuration | |
3324 | */ | |
3325 | memset(&api, 0, sizeof(struct zapi_cap)); | |
3326 | if (disable) { | |
3327 | api.cap = ZEBRA_CLIENT_GR_DISABLE; | |
3328 | api.vrf_id = bgp->vrf_id; | |
3329 | } else { | |
3330 | api.cap = ZEBRA_CLIENT_GR_CAPABILITIES; | |
3331 | api.stale_removal_time = bgp->rib_stale_time; | |
3332 | api.vrf_id = bgp->vrf_id; | |
3333 | } | |
3334 | ||
36235319 | 3335 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3336 | == ZCLIENT_SEND_FAILURE) { |
2ba1fe69 | 3337 | zlog_err("error sending capability"); |
85ef4179 | 3338 | ret = BGP_GR_FAILURE; |
3339 | } else { | |
3340 | if (disable) | |
3341 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; | |
3342 | else | |
3343 | bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE; | |
3344 | ||
3345 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3346 | zlog_debug("send capabilty success"); | |
3347 | ret = BGP_GR_SUCCESS; | |
3348 | } | |
3349 | return ret; | |
3350 | } | |
3351 | ||
3352 | /* Send route update pesding or completed status to RIB for the | |
3353 | * specific AFI, SAFI | |
3354 | */ | |
3355 | int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type) | |
3356 | { | |
2ba1fe69 | 3357 | struct zapi_cap api = {0}; |
85ef4179 | 3358 | |
3359 | if (zclient == NULL) { | |
3360 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2ba1fe69 | 3361 | zlog_debug("zclient == NULL, invalid"); |
85ef4179 | 3362 | return BGP_GR_FAILURE; |
3363 | } | |
3364 | ||
3365 | /* Check if the client is connected */ | |
3366 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3367 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3368 | zlog_debug("client not connected"); | |
3369 | return BGP_GR_FAILURE; | |
3370 | } | |
3371 | ||
85ef4179 | 3372 | api.afi = afi; |
3373 | api.safi = safi; | |
3374 | api.vrf_id = vrf_id; | |
3375 | api.cap = type; | |
3376 | ||
36235319 | 3377 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3378 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3379 | if (BGP_DEBUG(zebra, ZEBRA)) |
3380 | zlog_debug("error sending capability"); | |
3381 | return BGP_GR_FAILURE; | |
3382 | } | |
3383 | return BGP_GR_SUCCESS; | |
3384 | } | |
3385 | ||
3386 | ||
85ef4179 | 3387 | /* Send RIB stale timer update */ |
3388 | int bgp_zebra_stale_timer_update(struct bgp *bgp) | |
3389 | { | |
3390 | struct zapi_cap api; | |
3391 | ||
3392 | if (zclient == NULL) { | |
3393 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3394 | zlog_debug("zclient invalid"); | |
3395 | return BGP_GR_FAILURE; | |
3396 | } | |
3397 | ||
3398 | /* Check if the client is connected */ | |
3399 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3400 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3401 | zlog_debug("client not connected"); | |
3402 | return BGP_GR_FAILURE; | |
3403 | } | |
3404 | ||
3405 | memset(&api, 0, sizeof(struct zapi_cap)); | |
3406 | api.cap = ZEBRA_CLIENT_RIB_STALE_TIME; | |
3407 | api.stale_removal_time = bgp->rib_stale_time; | |
3408 | api.vrf_id = bgp->vrf_id; | |
36235319 | 3409 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3410 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3411 | if (BGP_DEBUG(zebra, ZEBRA)) |
3412 | zlog_debug("error sending capability"); | |
3413 | return BGP_GR_FAILURE; | |
3414 | } | |
3415 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3416 | zlog_debug("send capabilty success"); | |
3417 | return BGP_GR_SUCCESS; | |
3418 | } |