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718e3744 | 1 | /* zebra client |
896014f4 DL |
2 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "stream.h" | |
25 | #include "network.h" | |
26 | #include "prefix.h" | |
27 | #include "log.h" | |
28 | #include "sockunion.h" | |
29 | #include "zclient.h" | |
30 | #include "routemap.h" | |
31 | #include "thread.h" | |
3f9c7369 | 32 | #include "queue.h" |
6e919709 | 33 | #include "memory.h" |
856ca177 | 34 | #include "lib/json.h" |
2376c3f2 | 35 | #include "lib/bfd.h" |
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" |
65efcfce | 54 | #if 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" |
6a69ac51 | 63 | #include "bgpd/bgp_mac.h" |
6b0655a2 | 64 | |
718e3744 | 65 | /* All information about zebra. */ |
228da428 | 66 | struct zclient *zclient = NULL; |
718e3744 | 67 | |
ad4cbda1 | 68 | /* Can we install into zebra? */ |
d62a17ae | 69 | static inline int bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 70 | { |
d62a17ae | 71 | if (zclient->sock <= 0) |
72 | return 0; | |
ad4cbda1 | 73 | |
bb4ef1ae DS |
74 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
75 | zlog_debug("%s: No zebra instance to talk to, not installing information", | |
76 | __PRETTY_FUNCTION__); | |
d62a17ae | 77 | return 0; |
bb4ef1ae | 78 | } |
ad4cbda1 | 79 | |
d62a17ae | 80 | return 1; |
ad4cbda1 | 81 | } |
82 | ||
afbb1c59 LB |
83 | int zclient_num_connects; |
84 | ||
18a6dce6 | 85 | /* Router-id update message from zebra. */ |
121f9dee | 86 | static int bgp_router_id_update(ZAPI_CALLBACK_ARGS) |
718e3744 | 87 | { |
d62a17ae | 88 | struct prefix router_id; |
718e3744 | 89 | |
d62a17ae | 90 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 91 | |
d62a17ae | 92 | if (BGP_DEBUG(zebra, ZEBRA)) { |
93 | char buf[PREFIX2STR_BUFFER]; | |
94 | prefix2str(&router_id, buf, sizeof(buf)); | |
95 | zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf); | |
96 | } | |
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 | ||
718e3744 | 205 | /* Inteface addition message from zebra. */ |
121f9dee | 206 | static int bgp_interface_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 207 | { |
d62a17ae | 208 | struct interface *ifp; |
209 | struct bgp *bgp; | |
718e3744 | 210 | |
d62a17ae | 211 | ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); |
212 | if (!ifp) // unexpected | |
213 | return 0; | |
718e3744 | 214 | |
d62a17ae | 215 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
216 | zlog_debug("Rx Intf add VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 217 | |
d62a17ae | 218 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
219 | if (!bgp) | |
220 | return 0; | |
4a04e5f7 | 221 | |
6a69ac51 DS |
222 | bgp_mac_add_mac_entry(ifp); |
223 | ||
d62a17ae | 224 | bgp_update_interface_nbrs(bgp, ifp, ifp); |
225 | return 0; | |
718e3744 | 226 | } |
227 | ||
121f9dee | 228 | static int bgp_interface_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 229 | { |
d62a17ae | 230 | struct stream *s; |
231 | struct interface *ifp; | |
232 | struct bgp *bgp; | |
718e3744 | 233 | |
2f9123e0 | 234 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 235 | |
d62a17ae | 236 | s = zclient->ibuf; |
237 | ifp = zebra_interface_state_read(s, vrf_id); | |
238 | if (!ifp) /* This may happen if we've just unregistered for a VRF. */ | |
239 | return 0; | |
a4499b83 | 240 | |
d62a17ae | 241 | if (BGP_DEBUG(zebra, ZEBRA)) |
242 | zlog_debug("Rx Intf del VRF %u IF %s", vrf_id, ifp->name); | |
a39275d7 | 243 | |
85751d1d DS |
244 | if (bgp) |
245 | bgp_update_interface_nbrs(bgp, ifp, NULL); | |
64745052 | 246 | |
6a69ac51 DS |
247 | bgp_mac_del_mac_entry(ifp); |
248 | ||
ff880b78 | 249 | if_set_index(ifp, IFINDEX_INTERNAL); |
d62a17ae | 250 | return 0; |
718e3744 | 251 | } |
252 | ||
121f9dee | 253 | static int bgp_interface_up(ZAPI_CALLBACK_ARGS) |
718e3744 | 254 | { |
d62a17ae | 255 | struct stream *s; |
256 | struct interface *ifp; | |
257 | struct connected *c; | |
258 | struct nbr_connected *nc; | |
259 | struct listnode *node, *nnode; | |
260 | struct bgp *bgp; | |
6aeb9e78 | 261 | |
2f9123e0 | 262 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 263 | |
d62a17ae | 264 | s = zclient->ibuf; |
265 | ifp = zebra_interface_state_read(s, vrf_id); | |
718e3744 | 266 | |
d62a17ae | 267 | if (!ifp) |
268 | return 0; | |
718e3744 | 269 | |
6a69ac51 DS |
270 | bgp_mac_add_mac_entry(ifp); |
271 | ||
d62a17ae | 272 | if (BGP_DEBUG(zebra, ZEBRA)) |
273 | zlog_debug("Rx Intf up VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 274 | |
85751d1d DS |
275 | if (!bgp) |
276 | return 0; | |
277 | ||
d62a17ae | 278 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
279 | bgp_connected_add(bgp, c); | |
718e3744 | 280 | |
d62a17ae | 281 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
282 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 283 | |
d62a17ae | 284 | return 0; |
718e3744 | 285 | } |
286 | ||
121f9dee | 287 | static int bgp_interface_down(ZAPI_CALLBACK_ARGS) |
718e3744 | 288 | { |
d62a17ae | 289 | struct stream *s; |
290 | struct interface *ifp; | |
291 | struct connected *c; | |
292 | struct nbr_connected *nc; | |
293 | struct listnode *node, *nnode; | |
294 | struct bgp *bgp; | |
c19fe3c7 | 295 | struct peer *peer; |
6aeb9e78 | 296 | |
2f9123e0 | 297 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 298 | |
d62a17ae | 299 | s = zclient->ibuf; |
300 | ifp = zebra_interface_state_read(s, vrf_id); | |
301 | if (!ifp) | |
302 | return 0; | |
718e3744 | 303 | |
6a69ac51 DS |
304 | bgp_mac_del_mac_entry(ifp); |
305 | ||
d62a17ae | 306 | if (BGP_DEBUG(zebra, ZEBRA)) |
307 | zlog_debug("Rx Intf down VRF %u IF %s", vrf_id, ifp->name); | |
ad4cbda1 | 308 | |
85751d1d DS |
309 | if (!bgp) |
310 | return 0; | |
311 | ||
d62a17ae | 312 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
313 | bgp_connected_delete(bgp, c); | |
718e3744 | 314 | |
d62a17ae | 315 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
316 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 317 | |
d62a17ae | 318 | /* Fast external-failover */ |
c19fe3c7 | 319 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 320 | |
d62a17ae | 321 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 322 | #if defined(HAVE_CUMULUS) |
d62a17ae | 323 | /* Take down directly connected EBGP peers as well as |
324 | * 1-hop BFD | |
325 | * tracked (directly connected) IBGP peers. | |
326 | */ | |
327 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1) | |
328 | && (!peer->bfd_info | |
329 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 330 | #else |
d62a17ae | 331 | /* Take down directly connected EBGP peers */ |
332 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
8c4f6381 | 333 | #endif |
d62a17ae | 334 | continue; |
718e3744 | 335 | |
d62a17ae | 336 | if (ifp == peer->nexthop.ifp) { |
337 | BGP_EVENT_ADD(peer, BGP_Stop); | |
338 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
339 | } | |
340 | } | |
341 | } | |
718e3744 | 342 | |
d62a17ae | 343 | return 0; |
718e3744 | 344 | } |
345 | ||
121f9dee | 346 | static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 347 | { |
d62a17ae | 348 | struct connected *ifc; |
2f9123e0 DS |
349 | struct bgp *bgp; |
350 | ||
351 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 352 | |
121f9dee | 353 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 354 | |
355 | if (ifc == NULL) | |
356 | return 0; | |
357 | ||
358 | if (bgp_debug_zebra(ifc->address)) { | |
359 | char buf[PREFIX2STR_BUFFER]; | |
360 | prefix2str(ifc->address, buf, sizeof(buf)); | |
361 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
362 | ifc->ifp->name, buf); | |
363 | } | |
364 | ||
85751d1d DS |
365 | if (!bgp) |
366 | return 0; | |
367 | ||
d62a17ae | 368 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 369 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 370 | |
d62a17ae | 371 | /* If we have learnt of any neighbors on this interface, |
372 | * check to kick off any BGP interface-based neighbors, | |
373 | * but only if this is a link-local address. | |
374 | */ | |
375 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
376 | && !list_isempty(ifc->ifp->nbr_connected)) | |
377 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
378 | } | |
379 | ||
380 | return 0; | |
718e3744 | 381 | } |
382 | ||
121f9dee | 383 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 384 | { |
d62a17ae | 385 | struct connected *ifc; |
386 | struct bgp *bgp; | |
6aeb9e78 | 387 | |
2f9123e0 | 388 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 389 | |
121f9dee | 390 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 391 | |
d62a17ae | 392 | if (ifc == NULL) |
393 | return 0; | |
718e3744 | 394 | |
d62a17ae | 395 | if (bgp_debug_zebra(ifc->address)) { |
396 | char buf[PREFIX2STR_BUFFER]; | |
397 | prefix2str(ifc->address, buf, sizeof(buf)); | |
398 | zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id, | |
399 | ifc->ifp->name, buf); | |
400 | } | |
a39275d7 | 401 | |
85751d1d | 402 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 403 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 404 | } |
718e3744 | 405 | |
d62a17ae | 406 | connected_free(ifc); |
718e3744 | 407 | |
d62a17ae | 408 | return 0; |
718e3744 | 409 | } |
410 | ||
121f9dee | 411 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 412 | { |
d62a17ae | 413 | struct nbr_connected *ifc = NULL; |
414 | struct bgp *bgp; | |
415 | ||
121f9dee | 416 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 417 | |
418 | if (ifc == NULL) | |
419 | return 0; | |
420 | ||
421 | if (bgp_debug_zebra(ifc->address)) { | |
422 | char buf[PREFIX2STR_BUFFER]; | |
423 | prefix2str(ifc->address, buf, sizeof(buf)); | |
424 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id, | |
425 | ifc->ifp->name, buf); | |
426 | } | |
427 | ||
428 | if (if_is_operative(ifc->ifp)) { | |
429 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
430 | if (bgp) | |
431 | bgp_nbr_connected_add(bgp, ifc); | |
432 | } | |
433 | ||
434 | return 0; | |
a80beece DS |
435 | } |
436 | ||
121f9dee | 437 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 438 | { |
d62a17ae | 439 | struct nbr_connected *ifc = NULL; |
440 | struct bgp *bgp; | |
6aeb9e78 | 441 | |
121f9dee | 442 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 443 | |
d62a17ae | 444 | if (ifc == NULL) |
445 | return 0; | |
a80beece | 446 | |
d62a17ae | 447 | if (bgp_debug_zebra(ifc->address)) { |
448 | char buf[PREFIX2STR_BUFFER]; | |
449 | prefix2str(ifc->address, buf, sizeof(buf)); | |
450 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id, | |
451 | ifc->ifp->name, buf); | |
452 | } | |
a80beece | 453 | |
d62a17ae | 454 | if (if_is_operative(ifc->ifp)) { |
455 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
456 | if (bgp) | |
457 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
458 | } | |
a80beece | 459 | |
d62a17ae | 460 | nbr_connected_free(ifc); |
a80beece | 461 | |
d62a17ae | 462 | return 0; |
a80beece DS |
463 | } |
464 | ||
bfcd43b2 | 465 | /* VRF update for an interface. */ |
121f9dee | 466 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 467 | { |
d62a17ae | 468 | struct interface *ifp; |
469 | vrf_id_t new_vrf_id; | |
470 | struct connected *c; | |
471 | struct nbr_connected *nc; | |
472 | struct listnode *node, *nnode; | |
473 | struct bgp *bgp; | |
c19fe3c7 | 474 | struct peer *peer; |
bfcd43b2 | 475 | |
d62a17ae | 476 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
477 | &new_vrf_id); | |
478 | if (!ifp) | |
479 | return 0; | |
bfcd43b2 | 480 | |
d62a17ae | 481 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
482 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
483 | ifp->name, new_vrf_id); | |
bfcd43b2 | 484 | |
d62a17ae | 485 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 486 | |
85751d1d DS |
487 | if (bgp) { |
488 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
489 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 490 | |
85751d1d DS |
491 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
492 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 493 | |
85751d1d DS |
494 | /* Fast external-failover */ |
495 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
496 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
497 | if ((peer->ttl != 1) && (peer->gtsm_hops != 1)) | |
498 | continue; | |
bfcd43b2 | 499 | |
85751d1d DS |
500 | if (ifp == peer->nexthop.ifp) |
501 | BGP_EVENT_ADD(peer, BGP_Stop); | |
502 | } | |
d62a17ae | 503 | } |
504 | } | |
bfcd43b2 | 505 | |
d62a17ae | 506 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 507 | |
d62a17ae | 508 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
509 | if (!bgp) | |
510 | return 0; | |
bfcd43b2 | 511 | |
d62a17ae | 512 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
513 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 514 | |
d62a17ae | 515 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
516 | bgp_nbr_connected_add(bgp, nc); | |
517 | return 0; | |
bfcd43b2 | 518 | } |
519 | ||
718e3744 | 520 | /* Zebra route add and delete treatment. */ |
121f9dee | 521 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 522 | { |
9de1f7ff | 523 | enum nexthop_types_t nhtype; |
74489921 RW |
524 | struct zapi_route api; |
525 | union g_addr nexthop; | |
9de1f7ff | 526 | ifindex_t ifindex; |
74489921 | 527 | int add, i; |
d62a17ae | 528 | struct bgp *bgp; |
529 | ||
530 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
531 | if (!bgp) | |
532 | return 0; | |
533 | ||
74489921 RW |
534 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
535 | return -1; | |
d62a17ae | 536 | |
74489921 RW |
537 | /* we completely ignore srcdest routes for now. */ |
538 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
539 | return 0; | |
d62a17ae | 540 | |
74489921 RW |
541 | /* ignore link-local address. */ |
542 | if (api.prefix.family == AF_INET6 | |
543 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
544 | return 0; | |
d62a17ae | 545 | |
74489921 RW |
546 | nexthop = api.nexthops[0].gate; |
547 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 548 | nhtype = api.nexthops[0].type; |
d62a17ae | 549 | |
121f9dee | 550 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 551 | if (add) { |
d62a17ae | 552 | /* |
553 | * The ADD message is actually an UPDATE and there is no | |
554 | * explicit DEL | |
555 | * for a prior redistributed route, if any. So, perform an | |
556 | * implicit | |
557 | * DEL processing for the same redistributed route from any | |
558 | * other | |
559 | * source type. | |
560 | */ | |
561 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
562 | if (i != api.type) | |
74489921 | 563 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 564 | api.instance); |
565 | } | |
566 | ||
567 | /* Now perform the add/update. */ | |
74489921 | 568 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
569 | nhtype, api.metric, api.type, api.instance, |
570 | api.tag); | |
d62a17ae | 571 | } else { |
74489921 RW |
572 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
573 | api.instance); | |
a39275d7 | 574 | } |
d62a17ae | 575 | |
74489921 RW |
576 | if (bgp_debug_zebra(&api.prefix)) { |
577 | char buf[2][PREFIX_STRLEN]; | |
578 | ||
579 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
77e62f2b | 580 | if (add) { |
581 | inet_ntop(api.prefix.family, &nexthop, buf[1], | |
582 | sizeof(buf[1])); | |
583 | zlog_debug( | |
584 | "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI, | |
585 | vrf_id, zebra_route_string(api.type), | |
586 | api.instance, buf[0], buf[1], nhtype, | |
587 | ifindex, api.metric, api.tag); | |
588 | } else { | |
589 | zlog_debug( | |
590 | "Rx route DEL VRF %u %s[%d] %s", | |
591 | vrf_id, zebra_route_string(api.type), | |
592 | api.instance, buf[0]); | |
593 | } | |
d62a17ae | 594 | } |
595 | ||
596 | return 0; | |
718e3744 | 597 | } |
6b0655a2 | 598 | |
d62a17ae | 599 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 600 | { |
f4e14fdb | 601 | struct vrf *vrf; |
d62a17ae | 602 | struct listnode *cnode; |
603 | struct interface *ifp; | |
604 | struct connected *connected; | |
605 | struct prefix_ipv4 p; | |
606 | struct prefix *cp; | |
607 | ||
f4e14fdb RW |
608 | vrf = vrf_lookup_by_id(vrf_id); |
609 | if (!vrf) | |
610 | return NULL; | |
611 | ||
d62a17ae | 612 | p.family = AF_INET; |
613 | p.prefix = *addr; | |
614 | p.prefixlen = IPV4_MAX_BITLEN; | |
615 | ||
451fda4f | 616 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 617 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
618 | cp = connected->address; | |
619 | ||
620 | if (cp->family == AF_INET) | |
621 | if (prefix_match(cp, (struct prefix *)&p)) | |
622 | return ifp; | |
623 | } | |
718e3744 | 624 | } |
d62a17ae | 625 | return NULL; |
718e3744 | 626 | } |
627 | ||
d62a17ae | 628 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 629 | { |
f4e14fdb | 630 | struct vrf *vrf; |
d62a17ae | 631 | struct listnode *cnode; |
632 | struct interface *ifp; | |
633 | struct connected *connected; | |
634 | struct prefix *cp; | |
635 | ||
f4e14fdb RW |
636 | vrf = vrf_lookup_by_id(vrf_id); |
637 | if (!vrf) | |
638 | return NULL; | |
639 | ||
451fda4f | 640 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 641 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
642 | cp = connected->address; | |
643 | ||
644 | if (cp->family == AF_INET) | |
645 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
646 | return ifp; | |
647 | } | |
718e3744 | 648 | } |
d62a17ae | 649 | return NULL; |
718e3744 | 650 | } |
651 | ||
d62a17ae | 652 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
653 | vrf_id_t vrf_id) | |
718e3744 | 654 | { |
f4e14fdb | 655 | struct vrf *vrf; |
d62a17ae | 656 | struct listnode *cnode; |
657 | struct interface *ifp; | |
658 | struct connected *connected; | |
659 | struct prefix_ipv6 p; | |
660 | struct prefix *cp; | |
661 | ||
f4e14fdb RW |
662 | vrf = vrf_lookup_by_id(vrf_id); |
663 | if (!vrf) | |
664 | return NULL; | |
665 | ||
d62a17ae | 666 | p.family = AF_INET6; |
667 | p.prefix = *addr; | |
668 | p.prefixlen = IPV6_MAX_BITLEN; | |
669 | ||
451fda4f | 670 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 671 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
672 | cp = connected->address; | |
673 | ||
674 | if (cp->family == AF_INET6) | |
675 | if (prefix_match(cp, (struct prefix *)&p)) { | |
676 | if (IN6_IS_ADDR_LINKLOCAL( | |
677 | &cp->u.prefix6)) { | |
678 | if (ifindex == ifp->ifindex) | |
679 | return ifp; | |
680 | } else | |
681 | return ifp; | |
682 | } | |
683 | } | |
718e3744 | 684 | } |
d62a17ae | 685 | return NULL; |
718e3744 | 686 | } |
687 | ||
d62a17ae | 688 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
689 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 690 | { |
f4e14fdb | 691 | struct vrf *vrf; |
d62a17ae | 692 | struct listnode *cnode; |
693 | struct interface *ifp; | |
694 | struct connected *connected; | |
695 | struct prefix *cp; | |
696 | ||
f4e14fdb RW |
697 | vrf = vrf_lookup_by_id(vrf_id); |
698 | if (!vrf) | |
699 | return NULL; | |
700 | ||
451fda4f | 701 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 702 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
703 | cp = connected->address; | |
704 | ||
705 | if (cp->family == AF_INET6) | |
706 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
707 | if (IN6_IS_ADDR_LINKLOCAL( | |
708 | &cp->u.prefix6)) { | |
709 | if (ifindex == ifp->ifindex) | |
710 | return ifp; | |
711 | } else | |
712 | return ifp; | |
713 | } | |
714 | } | |
718e3744 | 715 | } |
d62a17ae | 716 | return NULL; |
718e3744 | 717 | } |
718 | ||
d62a17ae | 719 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 720 | { |
d62a17ae | 721 | struct listnode *cnode; |
722 | struct connected *connected; | |
723 | struct prefix *cp; | |
724 | ||
725 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
726 | cp = connected->address; | |
727 | ||
728 | if (cp->family == AF_INET6) | |
729 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
730 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
731 | return 1; | |
732 | } | |
733 | } | |
734 | return 0; | |
718e3744 | 735 | } |
736 | ||
d62a17ae | 737 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 738 | { |
d62a17ae | 739 | struct listnode *cnode; |
740 | struct connected *connected; | |
741 | struct prefix *cp; | |
742 | ||
743 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
744 | cp = connected->address; | |
745 | ||
746 | if (cp->family == AF_INET6) | |
747 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
748 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
749 | return 1; | |
750 | } | |
751 | } | |
752 | return 0; | |
718e3744 | 753 | } |
718e3744 | 754 | |
d62a17ae | 755 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 756 | { |
d62a17ae | 757 | struct listnode *cnode; |
758 | struct connected *connected; | |
759 | struct prefix *cp; | |
760 | ||
761 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
762 | cp = connected->address; | |
763 | if ((cp->family == AF_INET) | |
764 | && !ipv4_martian(&(cp->u.prefix4))) { | |
765 | *addr = cp->u.prefix4; | |
766 | return 1; | |
767 | } | |
768 | } | |
769 | return 0; | |
6ee06fa9 PM |
770 | } |
771 | ||
17cdd31e DS |
772 | |
773 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
774 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 775 | { |
d62a17ae | 776 | int ret = 0; |
777 | struct interface *ifp = NULL; | |
778 | ||
779 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
780 | ||
781 | if (!local) | |
17cdd31e | 782 | return false; |
d62a17ae | 783 | if (!remote) |
17cdd31e | 784 | return false; |
d62a17ae | 785 | |
786 | if (local->sa.sa_family == AF_INET) { | |
787 | nexthop->v4 = local->sin.sin_addr; | |
788 | if (peer->update_if) | |
789 | ifp = if_lookup_by_name(peer->update_if, | |
790 | peer->bgp->vrf_id); | |
791 | else | |
792 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
793 | peer->bgp->vrf_id); | |
718e3744 | 794 | } |
d62a17ae | 795 | if (local->sa.sa_family == AF_INET6) { |
796 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
797 | if (peer->conf_if || peer->ifname) | |
798 | ifp = if_lookup_by_name(peer->conf_if | |
799 | ? peer->conf_if | |
800 | : peer->ifname, | |
801 | peer->bgp->vrf_id); | |
802 | } else if (peer->update_if) | |
803 | ifp = if_lookup_by_name(peer->update_if, | |
804 | peer->bgp->vrf_id); | |
805 | else | |
806 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
807 | local->sin6.sin6_scope_id, | |
808 | peer->bgp->vrf_id); | |
718e3744 | 809 | } |
d62a17ae | 810 | |
17cdd31e DS |
811 | if (!ifp) { |
812 | /* | |
813 | * BGP views do not currently get proper data | |
814 | * from zebra( when attached ) to be able to | |
815 | * properly resolve nexthops, so give this | |
816 | * instance type a pass. | |
817 | */ | |
818 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
819 | return true; | |
820 | /* | |
821 | * If we have no interface data but we have established | |
822 | * some connection w/ zebra than something has gone | |
823 | * terribly terribly wrong here, so say this failed | |
824 | * If we do not any zebra connection then not | |
825 | * having a ifp pointer is ok. | |
826 | */ | |
827 | return zclient_num_connects ? false : true; | |
828 | } | |
d62a17ae | 829 | |
830 | nexthop->ifp = ifp; | |
831 | ||
832 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
833 | if (local->sa.sa_family == AF_INET) { | |
834 | /* IPv6 nexthop*/ | |
835 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
836 | ||
837 | if (!ret) { | |
838 | /* There is no global nexthop. Use link-local address as | |
839 | * both the | |
840 | * global and link-local nexthop. In this scenario, the | |
841 | * expectation | |
842 | * for interop is that the network admin would use a | |
843 | * route-map to | |
844 | * specify the global IPv6 nexthop. | |
845 | */ | |
846 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
847 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
848 | IPV6_MAX_BYTELEN); | |
849 | } else | |
850 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
851 | ||
852 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
853 | peer->shared_network = 1; | |
854 | else | |
855 | peer->shared_network = 0; | |
718e3744 | 856 | } |
718e3744 | 857 | |
d62a17ae | 858 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
859 | if (local->sa.sa_family == AF_INET6) { | |
860 | struct interface *direct = NULL; | |
861 | ||
862 | /* IPv4 nexthop. */ | |
863 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
864 | if (!ret && peer->local_id.s_addr) | |
865 | nexthop->v4 = peer->local_id; | |
866 | ||
867 | /* Global address*/ | |
868 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
869 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
870 | IPV6_MAX_BYTELEN); | |
871 | ||
872 | /* If directory connected set link-local address. */ | |
873 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
874 | remote->sin6.sin6_scope_id, | |
875 | peer->bgp->vrf_id); | |
876 | if (direct) | |
877 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
878 | } else | |
879 | /* Link-local address. */ | |
880 | { | |
881 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
882 | ||
883 | /* If there is no global address. Set link-local | |
884 | address as | |
885 | global. I know this break RFC specification... */ | |
886 | /* In this scenario, the expectation for interop is that | |
887 | * the | |
888 | * network admin would use a route-map to specify the | |
889 | * global | |
890 | * IPv6 nexthop. | |
891 | */ | |
892 | if (!ret) | |
893 | memcpy(&nexthop->v6_global, | |
894 | &local->sin6.sin6_addr, | |
895 | IPV6_MAX_BYTELEN); | |
896 | /* Always set the link-local address */ | |
897 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
898 | IPV6_MAX_BYTELEN); | |
899 | } | |
900 | ||
901 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
902 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
903 | remote->sin6.sin6_scope_id, | |
904 | peer->bgp->vrf_id)) | |
905 | peer->shared_network = 1; | |
906 | else | |
907 | peer->shared_network = 0; | |
908 | } | |
718e3744 | 909 | |
d62a17ae | 910 | /* KAME stack specific treatment. */ |
718e3744 | 911 | #ifdef KAME |
d62a17ae | 912 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
913 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
914 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
915 | } | |
916 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
917 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
918 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
919 | } | |
718e3744 | 920 | #endif /* KAME */ |
e33a4880 | 921 | |
d62a17ae | 922 | /* If we have identified the local interface, there is no error for now. |
923 | */ | |
17cdd31e | 924 | return true; |
718e3744 | 925 | } |
926 | ||
18ee8310 | 927 | static struct in6_addr * |
40381db7 | 928 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 929 | { |
d62a17ae | 930 | struct in6_addr *nexthop = NULL; |
931 | ||
932 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
933 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
934 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 935 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 936 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 937 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 938 | } |
d62a17ae | 939 | |
940 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
941 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
942 | || path->attr->mp_nexthop_len | |
943 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 944 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
945 | if (path->attr->mp_nexthop_prefer_global) { |
946 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 947 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 948 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 949 | } else { |
d62a17ae | 950 | /* Workaround for Cisco's nexthop bug. */ |
951 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 DS |
952 | &path->attr->mp_nexthop_global) |
953 | && path->peer->su_remote->sa.sa_family | |
59a0f1cb | 954 | == AF_INET6) { |
d62a17ae | 955 | nexthop = |
40381db7 | 956 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 957 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 958 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 959 | ->ifindex; |
77e62f2b | 960 | } else { |
40381db7 | 961 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 962 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 963 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 964 | } |
d62a17ae | 965 | } |
966 | } | |
967 | ||
968 | return nexthop; | |
73ac8160 DS |
969 | } |
970 | ||
d62a17ae | 971 | static int bgp_table_map_apply(struct route_map *map, struct prefix *p, |
40381db7 | 972 | struct bgp_path_info *path) |
73ac8160 | 973 | { |
b4cb15c6 DL |
974 | route_map_result_t ret; |
975 | ||
40381db7 DS |
976 | ret = route_map_apply(map, p, RMAP_BGP, path); |
977 | bgp_attr_flush(path->attr); | |
b4cb15c6 DL |
978 | |
979 | if (ret != RMAP_DENYMATCH) | |
d62a17ae | 980 | return 1; |
981 | ||
982 | if (bgp_debug_zebra(p)) { | |
983 | if (p->family == AF_INET) { | |
984 | char buf[2][INET_ADDRSTRLEN]; | |
985 | zlog_debug( | |
986 | "Zebra rmap deny: IPv4 route %s/%d nexthop %s", | |
987 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], | |
988 | sizeof(buf[0])), | |
989 | p->prefixlen, | |
40381db7 | 990 | inet_ntop(AF_INET, &path->attr->nexthop, buf[1], |
d62a17ae | 991 | sizeof(buf[1]))); |
992 | } | |
993 | if (p->family == AF_INET6) { | |
994 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 995 | ifindex_t ifindex; |
996 | struct in6_addr *nexthop; | |
997 | ||
40381db7 | 998 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 999 | zlog_debug( |
1000 | "Zebra rmap deny: IPv6 route %s/%d nexthop %s", | |
1001 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], | |
1002 | sizeof(buf[0])), | |
1003 | p->prefixlen, | |
77e62f2b | 1004 | inet_ntop(AF_INET6, nexthop, |
d62a17ae | 1005 | buf[1], sizeof(buf[1]))); |
1006 | } | |
1007 | } | |
1008 | return 0; | |
73ac8160 DS |
1009 | } |
1010 | ||
b98f7728 PG |
1011 | static struct thread *bgp_tm_thread_connect; |
1012 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
1013 | static bool bgp_tm_chunk_obtained; |
1014 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
1015 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 1016 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
1017 | |
1018 | static int bgp_zebra_tm_connect(struct thread *t) | |
1019 | { | |
1020 | struct zclient *zclient; | |
1021 | int delay = 10, ret = 0; | |
1022 | ||
1023 | zclient = THREAD_ARG(t); | |
1024 | if (bgp_tm_status_connected && zclient->sock > 0) | |
1025 | delay = 60; | |
1026 | else { | |
1027 | bgp_tm_status_connected = false; | |
1028 | ret = tm_table_manager_connect(zclient); | |
1029 | } | |
1030 | if (ret < 0) { | |
b7cd3069 | 1031 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
1032 | bgp_tm_status_connected = false; |
1033 | } else { | |
1034 | if (!bgp_tm_status_connected) | |
1035 | zlog_debug("Connecting to table manager. Success"); | |
1036 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
1037 | if (!bgp_tm_chunk_obtained) { |
1038 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
1039 | &bgp_tm_min, | |
6818e7e5 | 1040 | &bgp_tm_max) >= 0) { |
31c28cd7 | 1041 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1042 | /* parse non installed entries */ |
1043 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1044 | } | |
31c28cd7 | 1045 | } |
b98f7728 PG |
1046 | } |
1047 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1048 | &bgp_tm_thread_connect); | |
1049 | return 0; | |
1050 | } | |
1051 | ||
6818e7e5 PG |
1052 | bool bgp_zebra_tm_chunk_obtained(void) |
1053 | { | |
1054 | return bgp_tm_chunk_obtained; | |
1055 | } | |
1056 | ||
31c28cd7 PG |
1057 | uint32_t bgp_zebra_tm_get_id(void) |
1058 | { | |
1059 | static int table_id; | |
1060 | ||
1061 | if (!bgp_tm_chunk_obtained) | |
1062 | return ++table_id; | |
1063 | return bgp_tm_min++; | |
1064 | } | |
1065 | ||
6818e7e5 | 1066 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1067 | { |
1068 | int delay = 1; | |
1069 | ||
1070 | /* if already set, do nothing | |
1071 | */ | |
1072 | if (bgp_tm_thread_connect != NULL) | |
1073 | return; | |
1074 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1075 | bgp_tm_chunk_obtained = false; |
1076 | bgp_tm_min = bgp_tm_max = 0; | |
1077 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1078 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1079 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1080 | &bgp_tm_thread_connect); | |
1081 | } | |
1082 | ||
1083 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1084 | uint32_t *start, uint32_t *end) | |
1085 | { | |
1086 | int ret; | |
1087 | ||
1088 | if (!bgp_tm_status_connected) | |
1089 | return -1; | |
1090 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1091 | if (ret < 0) { | |
e50f7cfd | 1092 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1093 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1094 | return -1; |
1095 | } | |
1096 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1097 | chunk_size, *start, *end); | |
1098 | return 0; | |
1099 | } | |
1100 | ||
77e62f2b | 1101 | static int update_ipv4nh_for_route_install(int nh_othervrf, |
e1e71450 | 1102 | struct bgp *nh_bgp, |
77e62f2b | 1103 | struct in_addr *nexthop, |
1104 | struct attr *attr, | |
1105 | bool is_evpn, | |
1106 | struct zapi_nexthop *api_nh) | |
1107 | { | |
1108 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1109 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1110 | |
1111 | /* Need to set fields appropriately for EVPN routes imported into | |
1112 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1113 | * connected routes leaked into a VRF. | |
1114 | */ | |
e1e71450 | 1115 | if (is_evpn) { |
77e62f2b | 1116 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
2b83602b | 1117 | api_nh->onlink = true; |
e1e71450 | 1118 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1119 | } else if (nh_othervrf && | |
77e62f2b | 1120 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
1121 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1122 | api_nh->ifindex = attr->nh_ifindex; | |
1123 | } else | |
1124 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1125 | ||
1126 | return 1; | |
1127 | } | |
1128 | ||
4b7e6066 | 1129 | static int |
e1e71450 | 1130 | update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1131 | struct in6_addr *nexthop, | |
40381db7 DS |
1132 | ifindex_t ifindex, struct bgp_path_info *pi, |
1133 | struct bgp_path_info *best_pi, bool is_evpn, | |
4b7e6066 | 1134 | struct zapi_nexthop *api_nh) |
77e62f2b | 1135 | { |
1136 | struct attr *attr; | |
1137 | ||
40381db7 | 1138 | attr = pi->attr; |
e1e71450 | 1139 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1140 | |
e1e71450 | 1141 | if (is_evpn) { |
77e62f2b | 1142 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
2b83602b | 1143 | api_nh->onlink = true; |
e1e71450 | 1144 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1145 | } else if (nh_othervrf) { | |
77e62f2b | 1146 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1147 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1148 | api_nh->ifindex = attr->nh_ifindex; | |
1149 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1150 | if (ifindex == 0) | |
1151 | return 0; | |
1152 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1153 | api_nh->ifindex = ifindex; | |
1154 | } else { | |
1155 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1156 | api_nh->ifindex = 0; | |
1157 | } | |
1158 | } else { | |
1159 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1160 | if (pi == best_pi |
1161 | && attr->mp_nexthop_len | |
1162 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1163 | if (pi->peer->nexthop.ifp) | |
1164 | ifindex = | |
1165 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1166 | if (!ifindex) { |
40381db7 DS |
1167 | if (pi->peer->conf_if) |
1168 | ifindex = pi->peer->ifp->ifindex; | |
1169 | else if (pi->peer->ifname) | |
77e62f2b | 1170 | ifindex = ifname2ifindex( |
40381db7 DS |
1171 | pi->peer->ifname, |
1172 | pi->peer->bgp->vrf_id); | |
1173 | else if (pi->peer->nexthop.ifp) | |
1174 | ifindex = | |
1175 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1176 | } |
1177 | ||
1178 | if (ifindex == 0) | |
1179 | return 0; | |
1180 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1181 | api_nh->ifindex = ifindex; | |
1182 | } else { | |
1183 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1184 | api_nh->ifindex = 0; | |
1185 | } | |
1186 | } | |
1187 | api_nh->gate.ipv6 = *nexthop; | |
1188 | ||
1189 | return 1; | |
1190 | } | |
1191 | ||
d62a17ae | 1192 | void bgp_zebra_announce(struct bgp_node *rn, struct prefix *p, |
4b7e6066 | 1193 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1194 | safi_t safi) |
718e3744 | 1195 | { |
9913029c RW |
1196 | struct zapi_route api; |
1197 | struct zapi_nexthop *api_nh; | |
2ad4f093 | 1198 | int nh_family; |
a74e593b | 1199 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1200 | int has_valid_label = 0; |
d7c0a89a | 1201 | uint8_t distance; |
d62a17ae | 1202 | struct peer *peer; |
4b7e6066 | 1203 | struct bgp_path_info *mpinfo; |
d7c0a89a | 1204 | uint32_t metric; |
b4cb15c6 | 1205 | struct attr local_attr; |
4b7e6066 DS |
1206 | struct bgp_path_info local_info; |
1207 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1208 | route_tag_t tag; |
1209 | mpls_label_t label; | |
ddb5b488 | 1210 | int nh_othervrf = 0; |
960035b2 | 1211 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1212 | bool is_evpn; |
77e62f2b | 1213 | int nh_updated; |
d62a17ae | 1214 | |
1215 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1216 | * know of this instance. | |
1217 | */ | |
1218 | if (!bgp_install_info_to_zebra(bgp)) | |
1219 | return; | |
1220 | ||
d62a17ae | 1221 | if (bgp->main_zebra_update_hold) |
1222 | return; | |
1223 | ||
960035b2 | 1224 | if (bgp_debug_zebra(p)) |
ba1976db | 1225 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1226 | |
d90b788e A |
1227 | if (safi == SAFI_FLOWSPEC) { |
1228 | bgp_pbr_update_entry(bgp, &rn->p, info, afi, safi, true); | |
1229 | return; | |
1230 | } | |
529efa23 | 1231 | |
ddb5b488 PZ |
1232 | /* |
1233 | * vrf leaking support (will have only one nexthop) | |
1234 | */ | |
1235 | if (info->extra && info->extra->bgp_orig) | |
1236 | nh_othervrf = 1; | |
1237 | ||
9913029c RW |
1238 | /* Make Zebra API structure. */ |
1239 | memset(&api, 0, sizeof(api)); | |
1240 | api.vrf_id = bgp->vrf_id; | |
1241 | api.type = ZEBRA_ROUTE_BGP; | |
1242 | api.safi = safi; | |
1243 | api.prefix = *p; | |
1244 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1245 | ||
d62a17ae | 1246 | peer = info->peer; |
1247 | ||
ddb5b488 PZ |
1248 | if (info->type == ZEBRA_ROUTE_BGP |
1249 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1250 | ||
1ec90b5e | 1251 | /* Obtain peer from parent */ |
1252 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1253 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1254 | ->peer; | |
ddb5b488 PZ |
1255 | } |
1256 | ||
d62a17ae | 1257 | tag = info->attr->tag; |
1258 | ||
88493076 | 1259 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1260 | is_evpn = is_route_parent_evpn(info); |
1261 | if (is_evpn) | |
90264d64 | 1262 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1263 | |
d62a17ae | 1264 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1265 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1266 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1267 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1268 | } |
a39275d7 | 1269 | |
d62a17ae | 1270 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != 1) |
1271 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) | |
1272 | || bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
1273 | ||
4e8b02f4 | 1274 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1275 | |
2ad4f093 RW |
1276 | /* Metric is currently based on the best-path only */ |
1277 | metric = info->attr->med; | |
18ee8310 | 1278 | for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { |
a74e593b RW |
1279 | if (valid_nh_count >= multipath_num) |
1280 | break; | |
1281 | ||
b4cb15c6 DL |
1282 | *mpinfo_cp = *mpinfo; |
1283 | ||
d0d695f4 RW |
1284 | /* Get nexthop address-family */ |
1285 | if (p->family == AF_INET | |
1286 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1287 | nh_family = AF_INET; | |
1288 | else if (p->family == AF_INET6 | |
1289 | || (p->family == AF_INET | |
1290 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1291 | nh_family = AF_INET6; | |
1292 | else | |
1293 | continue; | |
1294 | ||
1374aec9 | 1295 | api_nh = &api.nexthops[valid_nh_count]; |
2ad4f093 | 1296 | if (nh_family == AF_INET) { |
ddb5b488 | 1297 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1298 | if (mpinfo->extra) { |
1299 | zlog_debug( | |
1300 | "%s: p=%s, bgp_is_valid_label: %d", | |
1301 | __func__, buf_prefix, | |
1302 | bgp_is_valid_label( | |
1303 | &mpinfo->extra | |
1304 | ->label[0])); | |
1305 | } else { | |
1306 | zlog_debug( | |
1307 | "%s: p=%s, extra is NULL, no label", | |
1308 | __func__, buf_prefix); | |
1309 | } | |
1310 | } | |
1311 | ||
6c0a6053 | 1312 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 1313 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1314 | apply doesn't modify the BGP route info. */ |
1315 | local_attr = *mpinfo->attr; | |
1316 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 | 1317 | } |
b4cb15c6 | 1318 | |
ddb5b488 | 1319 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1320 | if (!bgp_table_map_apply( |
d62a17ae | 1321 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1322 | mpinfo_cp)) |
1323 | continue; | |
1324 | ||
1325 | /* metric/tag is only allowed to be | |
1326 | * overridden on 1st nexthop */ | |
1327 | if (mpinfo == info) { | |
1328 | metric = mpinfo_cp->attr->med; | |
1329 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1330 | } |
b4cb15c6 | 1331 | } |
d62a17ae | 1332 | |
77e62f2b | 1333 | nh_updated = update_ipv4nh_for_route_install( |
1334 | nh_othervrf, | |
e1e71450 | 1335 | nh_othervrf ? |
1336 | info->extra->bgp_orig : bgp, | |
77e62f2b | 1337 | &mpinfo_cp->attr->nexthop, |
1338 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1339 | } else { |
f220da99 | 1340 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1341 | struct in6_addr *nexthop; |
9913029c | 1342 | |
6c0a6053 | 1343 | if (bgp->table_map[afi][safi].name) { |
ddb5b488 PZ |
1344 | /* Copy info and attributes, so the route-map |
1345 | apply doesn't modify the BGP route info. */ | |
1346 | local_attr = *mpinfo->attr; | |
1347 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1348 | } |
1349 | ||
d62a17ae | 1350 | if (bgp->table_map[afi][safi].name) { |
1351 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1352 | apply doesn't modify the BGP route info. */ |
1353 | local_attr = *mpinfo->attr; | |
1354 | mpinfo_cp->attr = &local_attr; | |
1355 | ||
1356 | if (!bgp_table_map_apply( | |
d62a17ae | 1357 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1358 | mpinfo_cp)) |
1359 | continue; | |
1360 | ||
1361 | /* metric/tag is only allowed to be | |
1362 | * overridden on 1st nexthop */ | |
1363 | if (mpinfo == info) { | |
1364 | metric = mpinfo_cp->attr->med; | |
1365 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1366 | } |
b4cb15c6 | 1367 | } |
18ee8310 DS |
1368 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1369 | &ifindex); | |
77e62f2b | 1370 | nh_updated = update_ipv6nh_for_route_install( |
e1e71450 | 1371 | nh_othervrf, nh_othervrf ? |
1372 | info->extra->bgp_orig : bgp, | |
1373 | nexthop, ifindex, | |
77e62f2b | 1374 | mpinfo, info, is_evpn, api_nh); |
2ad4f093 | 1375 | } |
d62a17ae | 1376 | |
77e62f2b | 1377 | /* Did we get proper nexthop info to update zebra? */ |
1378 | if (!nh_updated) | |
1379 | continue; | |
1380 | ||
a4d82a8a PZ |
1381 | if (mpinfo->extra |
1382 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1383 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1384 | has_valid_label = 1; |
b57ba6d2 | 1385 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1386 | |
2ad4f093 RW |
1387 | api_nh->label_num = 1; |
1388 | api_nh->labels[0] = label; | |
d62a17ae | 1389 | } |
22e63104 | 1390 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1391 | sizeof(struct ethaddr)); | |
2ad4f093 RW |
1392 | valid_nh_count++; |
1393 | } | |
d62a17ae | 1394 | |
77e62f2b | 1395 | |
a89b49cc | 1396 | /* if this is a evpn route we don't have to include the label */ |
a4d82a8a | 1397 | if (has_valid_label && !(CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))) |
2ad4f093 | 1398 | SET_FLAG(api.message, ZAPI_MESSAGE_LABEL); |
d62a17ae | 1399 | |
5cc347c4 DS |
1400 | /* |
1401 | * When we create an aggregate route we must also | |
1402 | * install a Null0 route in the RIB, so overwrite | |
1403 | * what was written into api with a blackhole route | |
1404 | */ | |
1405 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1406 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1407 | else | |
2ad4f093 | 1408 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1409 | |
2ad4f093 RW |
1410 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1411 | api.metric = metric; | |
d62a17ae | 1412 | |
2ad4f093 RW |
1413 | if (tag) { |
1414 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1415 | api.tag = tag; | |
1416 | } | |
d62a17ae | 1417 | |
2ad4f093 RW |
1418 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1419 | if (distance) { | |
1420 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1421 | api.distance = distance; | |
1422 | } | |
d62a17ae | 1423 | |
2ad4f093 RW |
1424 | if (bgp_debug_zebra(p)) { |
1425 | char prefix_buf[PREFIX_STRLEN]; | |
1426 | char nh_buf[INET6_ADDRSTRLEN]; | |
1427 | char label_buf[20]; | |
1428 | int i; | |
1429 | ||
1430 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1431 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1432 | " count %d", | |
1433 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1434 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1435 | for (i = 0; i < api.nexthop_num; i++) { | |
1436 | api_nh = &api.nexthops[i]; | |
1437 | ||
77e62f2b | 1438 | if (api_nh->type == NEXTHOP_TYPE_IFINDEX) |
1439 | nh_buf[0] = '\0'; | |
1440 | else { | |
1441 | if (api_nh->type == NEXTHOP_TYPE_IPV4) | |
1442 | nh_family = AF_INET; | |
1443 | else | |
1444 | nh_family = AF_INET6; | |
1445 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1446 | sizeof(nh_buf)); | |
1447 | } | |
2ad4f093 RW |
1448 | |
1449 | label_buf[0] = '\0'; | |
a4d82a8a PZ |
1450 | if (has_valid_label |
1451 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
2ad4f093 RW |
1452 | sprintf(label_buf, "label %u", |
1453 | api_nh->labels[0]); | |
77e62f2b | 1454 | zlog_debug(" nhop [%d]: %s if %u VRF %u %s", |
1455 | i + 1, nh_buf, api_nh->ifindex, | |
1456 | api_nh->vrf_id, label_buf); | |
d62a17ae | 1457 | } |
1458 | } | |
2ad4f093 | 1459 | |
960035b2 PZ |
1460 | if (bgp_debug_zebra(p)) { |
1461 | int recursion_flag = 0; | |
1462 | ||
1463 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1464 | recursion_flag = 1; | |
1465 | ||
1466 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1467 | __func__, buf_prefix, | |
1468 | (recursion_flag ? "" : "NOT ")); | |
1469 | } | |
2ad4f093 RW |
1470 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD |
1471 | : ZEBRA_ROUTE_DELETE, | |
1472 | zclient, &api); | |
718e3744 | 1473 | } |
1474 | ||
73ac8160 | 1475 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1476 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1477 | { |
d62a17ae | 1478 | struct bgp_node *rn; |
1479 | struct bgp_table *table; | |
40381db7 | 1480 | struct bgp_path_info *pi; |
d62a17ae | 1481 | |
1482 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1483 | * know of this instance. | |
1484 | */ | |
1485 | if (!bgp_install_info_to_zebra(bgp)) | |
1486 | return; | |
1487 | ||
1488 | table = bgp->rib[afi][safi]; | |
1489 | if (!table) | |
1490 | return; | |
1491 | ||
1492 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
6f94b685 | 1493 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 | 1494 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1495 | |
40381db7 DS |
1496 | (pi->type == ZEBRA_ROUTE_BGP |
1497 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1498 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1499 | |
40381db7 | 1500 | bgp_zebra_announce(rn, &rn->p, pi, bgp, afi, |
d62a17ae | 1501 | safi); |
73ac8160 DS |
1502 | } |
1503 | ||
4b7e6066 | 1504 | void bgp_zebra_withdraw(struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1505 | struct bgp *bgp, safi_t safi) |
718e3744 | 1506 | { |
2ad4f093 | 1507 | struct zapi_route api; |
f7df1907 | 1508 | struct peer *peer; |
ddb5b488 | 1509 | |
d62a17ae | 1510 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1511 | * know of this instance. | |
1512 | */ | |
568e10ca | 1513 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1514 | return; |
1515 | ||
f7df1907 PG |
1516 | if (safi == SAFI_FLOWSPEC) { |
1517 | peer = info->peer; | |
d90b788e A |
1518 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1519 | return; | |
f7df1907 | 1520 | } |
529efa23 | 1521 | |
2ad4f093 | 1522 | memset(&api, 0, sizeof(api)); |
568e10ca | 1523 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1524 | api.type = ZEBRA_ROUTE_BGP; |
1525 | api.safi = safi; | |
1526 | api.prefix = *p; | |
d62a17ae | 1527 | |
88493076 | 1528 | /* If the route's source is EVPN, flag as such. */ |
1529 | if (is_route_parent_evpn(info)) | |
90264d64 | 1530 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1531 | |
2ad4f093 RW |
1532 | if (bgp_debug_zebra(p)) { |
1533 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1534 | |
2ad4f093 | 1535 | prefix2str(&api.prefix, buf, sizeof(buf)); |
568e10ca | 1536 | zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf); |
d62a17ae | 1537 | } |
d62a17ae | 1538 | |
2ad4f093 | 1539 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1540 | } |
56c1f7d8 | 1541 | |
d7c0a89a QY |
1542 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1543 | unsigned short instance) | |
7c8ff89e | 1544 | { |
d62a17ae | 1545 | struct list *red_list; |
1546 | struct listnode *node; | |
1547 | struct bgp_redist *red; | |
7c8ff89e | 1548 | |
d62a17ae | 1549 | red_list = bgp->redist[afi][type]; |
1550 | if (!red_list) | |
1551 | return (NULL); | |
7c8ff89e | 1552 | |
d62a17ae | 1553 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1554 | if (red->instance == instance) | |
1555 | return red; | |
7c8ff89e | 1556 | |
d62a17ae | 1557 | return NULL; |
7c8ff89e DS |
1558 | } |
1559 | ||
d7c0a89a QY |
1560 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1561 | unsigned short instance) | |
7c8ff89e | 1562 | { |
d62a17ae | 1563 | struct list *red_list; |
1564 | struct bgp_redist *red; | |
7c8ff89e | 1565 | |
d62a17ae | 1566 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1567 | if (red) | |
1568 | return red; | |
7c8ff89e | 1569 | |
d62a17ae | 1570 | if (!bgp->redist[afi][type]) |
1571 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1572 | |
d62a17ae | 1573 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1574 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1575 | red->instance = instance; |
7c8ff89e | 1576 | |
d62a17ae | 1577 | listnode_add(red_list, red); |
7c8ff89e | 1578 | |
d62a17ae | 1579 | return red; |
7c8ff89e DS |
1580 | } |
1581 | ||
d7c0a89a QY |
1582 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1583 | unsigned short instance) | |
7c8ff89e | 1584 | { |
d62a17ae | 1585 | struct bgp_redist *red; |
1586 | ||
1587 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1588 | ||
1589 | if (red) { | |
1590 | listnode_delete(bgp->redist[afi][type], red); | |
1591 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1592 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1593 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1594 | } |
7c8ff89e | 1595 | } |
6b0655a2 | 1596 | |
718e3744 | 1597 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1598 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1599 | unsigned short instance, bool changed) |
718e3744 | 1600 | { |
e923dd62 | 1601 | /* If redistribute options are changed call |
1602 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1603 | * the routes | |
1604 | */ | |
1605 | if (changed) | |
1606 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1607 | |
d62a17ae | 1608 | /* Return if already redistribute flag is set. */ |
1609 | if (instance) { | |
1610 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1611 | instance)) | |
1612 | return CMD_WARNING; | |
718e3744 | 1613 | |
d62a17ae | 1614 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1615 | } else { | |
1616 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1617 | return CMD_WARNING; | |
7076bb2f | 1618 | |
65efcfce | 1619 | #if ENABLE_BGP_VNC |
f920dd6d | 1620 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1621 | vnc_export_bgp_enable( |
1622 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1623 | } | |
65efcfce LB |
1624 | #endif |
1625 | ||
d62a17ae | 1626 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1627 | } | |
718e3744 | 1628 | |
ea12cf11 DS |
1629 | /* |
1630 | * Don't try to register if we're not connected to Zebra or Zebra | |
1631 | * doesn't know of this instance. | |
1632 | * | |
1633 | * When we come up later well resend if needed. | |
d62a17ae | 1634 | */ |
1635 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1636 | return CMD_SUCCESS; |
a39275d7 | 1637 | |
d62a17ae | 1638 | if (BGP_DEBUG(zebra, ZEBRA)) |
1639 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1640 | bgp->vrf_id, afi, zebra_route_string(type), | |
1641 | instance); | |
518f0eb1 | 1642 | |
d62a17ae | 1643 | /* Send distribute add message to zebra. */ |
1644 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1645 | instance, bgp->vrf_id); | |
718e3744 | 1646 | |
d62a17ae | 1647 | return CMD_SUCCESS; |
718e3744 | 1648 | } |
1649 | ||
d62a17ae | 1650 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1651 | unsigned short instance) |
518f0eb1 | 1652 | { |
d62a17ae | 1653 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1654 | * know of this instance. | |
1655 | */ | |
1656 | if (!bgp_install_info_to_zebra(bgp)) | |
1657 | return -1; | |
1658 | ||
1659 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1660 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1661 | bgp->vrf_id, afi, zebra_route_string(type), | |
1662 | instance); | |
1663 | ||
1664 | /* Send distribute add message to zebra. */ | |
1665 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1666 | instance, bgp->vrf_id); | |
1667 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1668 | instance, bgp->vrf_id); | |
1669 | ||
1670 | return 0; | |
518f0eb1 DS |
1671 | } |
1672 | ||
718e3744 | 1673 | /* Redistribute with route-map specification. */ |
1de27621 DA |
1674 | int bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1675 | struct route_map *route_map) | |
718e3744 | 1676 | { |
d62a17ae | 1677 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
1678 | return 0; | |
718e3744 | 1679 | |
0a22ddfb | 1680 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1681 | /* Decrement the count for existing routemap and |
1682 | * increment the count for new route map. | |
1683 | */ | |
1684 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1685 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1686 | red->rmap.map = route_map; |
b4897fa5 | 1687 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1688 | |
d62a17ae | 1689 | return 1; |
718e3744 | 1690 | } |
1691 | ||
1692 | /* Redistribute with metric specification. */ | |
d62a17ae | 1693 | int bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
d7c0a89a | 1694 | afi_t afi, int type, uint32_t metric) |
718e3744 | 1695 | { |
d62a17ae | 1696 | struct bgp_node *rn; |
40381db7 | 1697 | struct bgp_path_info *pi; |
d62a17ae | 1698 | |
1699 | if (red->redist_metric_flag && red->redist_metric == metric) | |
1700 | return 0; | |
1701 | ||
1702 | red->redist_metric_flag = 1; | |
1703 | red->redist_metric = metric; | |
1704 | ||
1705 | for (rn = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); rn; | |
1706 | rn = bgp_route_next(rn)) { | |
6f94b685 | 1707 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 DS |
1708 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1709 | && pi->type == type | |
1710 | && pi->instance == red->instance) { | |
d62a17ae | 1711 | struct attr *old_attr; |
1712 | struct attr new_attr; | |
1713 | ||
40381db7 | 1714 | bgp_attr_dup(&new_attr, pi->attr); |
d62a17ae | 1715 | new_attr.med = red->redist_metric; |
40381db7 DS |
1716 | old_attr = pi->attr; |
1717 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1718 | bgp_attr_unintern(&old_attr); |
1719 | ||
40381db7 | 1720 | bgp_path_info_set_flag(rn, pi, |
18ee8310 | 1721 | BGP_PATH_ATTR_CHANGED); |
d62a17ae | 1722 | bgp_process(bgp, rn, afi, SAFI_UNICAST); |
1723 | } | |
1724 | } | |
1725 | } | |
1726 | ||
1727 | return 1; | |
718e3744 | 1728 | } |
1729 | ||
1730 | /* Unset redistribution. */ | |
d62a17ae | 1731 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1732 | unsigned short instance) |
718e3744 | 1733 | { |
d62a17ae | 1734 | struct bgp_redist *red; |
1735 | ||
1736 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1737 | if (!red) | |
1738 | return CMD_SUCCESS; | |
1739 | ||
1740 | /* Return if zebra connection is disabled. */ | |
1741 | if (instance) { | |
1742 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1743 | instance)) | |
1744 | return CMD_WARNING; | |
1745 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1746 | } else { | |
1747 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1748 | return CMD_WARNING; | |
1749 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1750 | } | |
718e3744 | 1751 | |
65efcfce | 1752 | |
d62a17ae | 1753 | if (bgp_install_info_to_zebra(bgp)) { |
1754 | /* Send distribute delete message to zebra. */ | |
1755 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1756 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1757 | bgp->vrf_id, afi, zebra_route_string(type), | |
1758 | instance); | |
1759 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1760 | type, instance, bgp->vrf_id); | |
1761 | } | |
1762 | ||
1763 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1764 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1765 | ||
1766 | return CMD_SUCCESS; | |
718e3744 | 1767 | } |
1768 | ||
6aeb9e78 | 1769 | /* Unset redistribution. */ |
d62a17ae | 1770 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1771 | unsigned short instance) |
6aeb9e78 | 1772 | { |
d62a17ae | 1773 | struct bgp_redist *red; |
6aeb9e78 | 1774 | |
ddb5b488 PZ |
1775 | /* |
1776 | * vnc and vpn->vrf checks must be before red check because | |
1777 | * they operate within bgpd irrespective of zebra connection | |
1778 | * status. red lookup fails if there is no zebra connection. | |
1779 | */ | |
1780 | #if ENABLE_BGP_VNC | |
f920dd6d | 1781 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
1782 | vnc_export_bgp_disable(bgp, afi); |
1783 | } | |
1784 | #endif | |
ddb5b488 | 1785 | |
d62a17ae | 1786 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1787 | if (!red) | |
1788 | return CMD_SUCCESS; | |
6aeb9e78 | 1789 | |
d62a17ae | 1790 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1791 | |
d62a17ae | 1792 | /* Unset route-map. */ |
0a22ddfb | 1793 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1794 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 1795 | red->rmap.name = NULL; |
1796 | red->rmap.map = NULL; | |
6aeb9e78 | 1797 | |
d62a17ae | 1798 | /* Unset metric. */ |
1799 | red->redist_metric_flag = 0; | |
1800 | red->redist_metric = 0; | |
6aeb9e78 | 1801 | |
d62a17ae | 1802 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1803 | |
d62a17ae | 1804 | return CMD_SUCCESS; |
6aeb9e78 DS |
1805 | } |
1806 | ||
fc2408ec DS |
1807 | void bgp_redistribute_redo(struct bgp *bgp) |
1808 | { | |
1809 | afi_t afi; | |
1810 | int i; | |
1811 | struct list *red_list; | |
1812 | struct listnode *node; | |
1813 | struct bgp_redist *red; | |
1814 | ||
1815 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
1816 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
1817 | ||
1818 | red_list = bgp->redist[afi][i]; | |
1819 | if (!red_list) | |
1820 | continue; | |
1821 | ||
1822 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1823 | bgp_redistribute_resend(bgp, afi, i, | |
1824 | red->instance); | |
1825 | } | |
1826 | } | |
1827 | } | |
1828 | } | |
1829 | ||
401d56cc DS |
1830 | /* Unset redistribute vrf bitmap during triggers like |
1831 | restart networking or delete VRFs */ | |
1832 | void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) | |
eb117f29 | 1833 | { |
d62a17ae | 1834 | int i; |
1835 | afi_t afi; | |
1836 | ||
1837 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1838 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
7e20406f | 1839 | if (vrf_bitmap_check(zclient->redist[afi][i], |
401d56cc | 1840 | old_vrf_id)) |
d62a17ae | 1841 | vrf_bitmap_unset(zclient->redist[afi][i], |
1842 | old_vrf_id); | |
d62a17ae | 1843 | return; |
eb117f29 SK |
1844 | } |
1845 | ||
d62a17ae | 1846 | void bgp_zclient_reset(void) |
718e3744 | 1847 | { |
d62a17ae | 1848 | zclient_reset(zclient); |
718e3744 | 1849 | } |
1850 | ||
ad4cbda1 | 1851 | /* Register this instance with Zebra. Invoked upon connect (for |
1852 | * default instance) and when other VRFs are learnt (or created and | |
1853 | * already learnt). | |
1854 | */ | |
d62a17ae | 1855 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1856 | { |
d62a17ae | 1857 | /* Don't try to register if we're not connected to Zebra */ |
1858 | if (!zclient || zclient->sock < 0) | |
1859 | return; | |
ad4cbda1 | 1860 | |
d62a17ae | 1861 | if (BGP_DEBUG(zebra, ZEBRA)) |
1862 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1863 | |
d62a17ae | 1864 | /* Register for router-id, interfaces, redistributed routes. */ |
1865 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1866 | |
e2f3a930 T |
1867 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
1868 | if (bgp->advertise_all_vni) | |
d62a17ae | 1869 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
1870 | |
1871 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 1872 | } |
1873 | ||
1874 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1875 | * being deleted (default or VRF) and it is already registered. | |
1876 | */ | |
d62a17ae | 1877 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1878 | { |
d62a17ae | 1879 | /* Don't try to deregister if we're not connected to Zebra */ |
1880 | if (zclient->sock < 0) | |
1881 | return; | |
ad4cbda1 | 1882 | |
d62a17ae | 1883 | if (BGP_DEBUG(zebra, ZEBRA)) |
1884 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1885 | |
e2f3a930 T |
1886 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
1887 | if (bgp->advertise_all_vni) | |
d62a17ae | 1888 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1889 | |
d62a17ae | 1890 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1891 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1892 | } |
1893 | ||
d62a17ae | 1894 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1895 | { |
d62a17ae | 1896 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1897 | |
d62a17ae | 1898 | /* Don't try to initiate if we're not connected to Zebra */ |
1899 | if (zclient->sock < 0) | |
1900 | return; | |
4a04e5f7 | 1901 | |
d62a17ae | 1902 | if (BGP_DEBUG(zebra, ZEBRA)) |
1903 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1904 | peer->host); | |
4a04e5f7 | 1905 | |
d62a17ae | 1906 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 1, |
1907 | ra_interval); | |
4a04e5f7 | 1908 | } |
1909 | ||
d62a17ae | 1910 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1911 | { |
d62a17ae | 1912 | /* Don't try to terminate if we're not connected to Zebra */ |
1913 | if (zclient->sock < 0) | |
1914 | return; | |
4a04e5f7 | 1915 | |
d62a17ae | 1916 | if (BGP_DEBUG(zebra, ZEBRA)) |
1917 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
1918 | peer->host); | |
4a04e5f7 | 1919 | |
d62a17ae | 1920 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 0, 0); |
4a04e5f7 | 1921 | } |
1922 | ||
31310b25 MK |
1923 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
1924 | { | |
1925 | struct stream *s = NULL; | |
1926 | ||
1927 | /* Check socket. */ | |
1928 | if (!zclient || zclient->sock < 0) | |
1929 | return 0; | |
1930 | ||
1931 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1932 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1933 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1934 | zlog_debug("%s: No zebra instance to talk to, cannot advertise subnet", | |
1935 | __PRETTY_FUNCTION__); | |
31310b25 | 1936 | return 0; |
bb4ef1ae | 1937 | } |
31310b25 MK |
1938 | |
1939 | s = zclient->obuf; | |
1940 | stream_reset(s); | |
1941 | ||
1942 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
1943 | stream_putc(s, advertise); | |
1944 | stream_put3(s, vni); | |
1945 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1946 | ||
1947 | return zclient_send_message(zclient); | |
1948 | } | |
1949 | ||
a8016157 CS |
1950 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
1951 | { | |
1952 | struct stream *s = NULL; | |
1953 | ||
1954 | /* Check socket. */ | |
1955 | if (!zclient || zclient->sock < 0) | |
1956 | return 0; | |
1957 | ||
1958 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1959 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1960 | return 0; | |
1961 | ||
1962 | s = zclient->obuf; | |
1963 | stream_reset(s); | |
1964 | ||
1965 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
1966 | stream_putc(s, advertise); | |
1967 | stream_putl(s, vni); | |
1968 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1969 | ||
1970 | return zclient_send_message(zclient); | |
1971 | } | |
1972 | ||
1a98c087 MK |
1973 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
1974 | { | |
1975 | struct stream *s = NULL; | |
1976 | ||
1977 | /* Check socket. */ | |
1978 | if (!zclient || zclient->sock < 0) | |
1979 | return 0; | |
1980 | ||
1981 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1982 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1983 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1984 | zlog_debug("%s: No zebra instance to talk to, not installing gw_macip", | |
1985 | __PRETTY_FUNCTION__); | |
1a98c087 | 1986 | return 0; |
bb4ef1ae | 1987 | } |
1a98c087 MK |
1988 | |
1989 | s = zclient->obuf; | |
1990 | stream_reset(s); | |
1991 | ||
1992 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
1993 | stream_putc(s, advertise); | |
cc6d5476 | 1994 | stream_putl(s, vni); |
1a98c087 MK |
1995 | stream_putw_at(s, 0, stream_get_endp(s)); |
1996 | ||
1997 | return zclient_send_message(zclient); | |
1998 | } | |
1999 | ||
fd069644 DS |
2000 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
2001 | enum vxlan_flood_control flood_ctrl) | |
2002 | { | |
2003 | struct stream *s; | |
2004 | ||
2005 | /* Check socket. */ | |
2006 | if (!zclient || zclient->sock < 0) | |
2007 | return 0; | |
2008 | ||
2009 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2010 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2011 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2012 | zlog_debug("%s: No zebra instance to talk to, not installing all vni", | |
2013 | __PRETTY_FUNCTION__); | |
fd069644 | 2014 | return 0; |
bb4ef1ae | 2015 | } |
fd069644 DS |
2016 | |
2017 | s = zclient->obuf; | |
2018 | stream_reset(s); | |
2019 | ||
2020 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2021 | stream_putc(s, flood_ctrl); | |
2022 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2023 | ||
2024 | return zclient_send_message(zclient); | |
2025 | } | |
2026 | ||
d62a17ae | 2027 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2028 | { |
d62a17ae | 2029 | struct stream *s; |
7724c0a1 | 2030 | |
d62a17ae | 2031 | /* Check socket. */ |
2032 | if (!zclient || zclient->sock < 0) | |
2033 | return 0; | |
7724c0a1 | 2034 | |
d62a17ae | 2035 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2036 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2037 | return 0; | |
7724c0a1 | 2038 | |
d62a17ae | 2039 | s = zclient->obuf; |
2040 | stream_reset(s); | |
7724c0a1 | 2041 | |
d62a17ae | 2042 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2043 | stream_putc(s, advertise); | |
fbac9605 DS |
2044 | /* Also inform current BUM handling setting. This is really |
2045 | * relevant only when 'advertise' is set. | |
2046 | */ | |
fd069644 | 2047 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2048 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2049 | |
d62a17ae | 2050 | return zclient_send_message(zclient); |
7724c0a1 | 2051 | } |
2052 | ||
0b9d9cd0 CS |
2053 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2054 | { | |
2055 | struct stream *s; | |
2056 | ||
2057 | /* Check socket. */ | |
2058 | if (!zclient || zclient->sock < 0) | |
2059 | return 0; | |
2060 | ||
2061 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2062 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2063 | return 0; | |
2064 | ||
2065 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2066 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2067 | bgp->evpn_info->dup_addr_detect ? | |
2068 | "enable" : "disable", | |
2069 | bgp->evpn_info->dad_max_moves, | |
2070 | bgp->evpn_info->dad_time, | |
2071 | bgp->evpn_info->dad_freeze ? | |
2072 | "enable" : "disable", | |
2073 | bgp->evpn_info->dad_freeze_time); | |
2074 | ||
2075 | s = zclient->obuf; | |
2076 | stream_reset(s); | |
2077 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2078 | bgp->vrf_id); | |
2079 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2080 | stream_putl(s, bgp->evpn_info->dad_time); | |
2081 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2082 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2083 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2084 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2085 | ||
2086 | return zclient_send_message(zclient); | |
2087 | } | |
2088 | ||
121f9dee | 2089 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2090 | { |
2091 | uint32_t seqno, priority, unique; | |
2092 | enum zapi_rule_notify_owner note; | |
2093 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2094 | struct bgp_pbr_rule *bgp_pbr = NULL; |
30d50e6d PG |
2095 | ifindex_t ifi; |
2096 | ||
2097 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
2098 | &ifi, ¬e)) | |
2099 | return -1; | |
2100 | ||
70eabd12 | 2101 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2102 | if (!bgp_pbra) { |
ffee150e PG |
2103 | /* look in bgp pbr rule */ |
2104 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2105 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2106 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2107 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
2108 | __PRETTY_FUNCTION__, unique); | |
2109 | return 0; | |
2110 | } | |
30d50e6d PG |
2111 | } |
2112 | ||
2113 | switch (note) { | |
2114 | case ZAPI_RULE_FAIL_INSTALL: | |
2115 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2116 | zlog_debug("%s: Received RULE_FAIL_INSTALL", | |
2117 | __PRETTY_FUNCTION__); | |
ffee150e PG |
2118 | if (bgp_pbra) { |
2119 | bgp_pbra->installed = false; | |
2120 | bgp_pbra->install_in_progress = false; | |
2121 | } else { | |
2122 | bgp_pbr->installed = false; | |
2123 | bgp_pbr->install_in_progress = false; | |
2124 | } | |
30d50e6d PG |
2125 | break; |
2126 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2127 | if (bgp_pbra) { |
2128 | bgp_pbra->installed = true; | |
2129 | bgp_pbra->install_in_progress = false; | |
2130 | } else { | |
ce3c0614 PG |
2131 | struct bgp_path_info *path; |
2132 | struct bgp_path_info_extra *extra; | |
2133 | ||
ffee150e PG |
2134 | bgp_pbr->installed = true; |
2135 | bgp_pbr->install_in_progress = false; | |
2136 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2137 | /* link bgp_info to bgp_pbr */ |
2138 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2139 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2140 | listnode_add_force(&extra->bgp_fs_iprule, |
2141 | bgp_pbr); | |
ffee150e | 2142 | } |
30d50e6d PG |
2143 | if (BGP_DEBUG(zebra, ZEBRA)) |
2144 | zlog_debug("%s: Received RULE_INSTALLED", | |
2145 | __PRETTY_FUNCTION__); | |
2146 | break; | |
f18a08f5 | 2147 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2148 | case ZAPI_RULE_REMOVED: |
2149 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2150 | zlog_debug("%s: Received RULE REMOVED", | |
2151 | __PRETTY_FUNCTION__); | |
2152 | break; | |
2153 | } | |
2154 | ||
2155 | return 0; | |
2156 | } | |
2157 | ||
121f9dee | 2158 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2159 | { |
2160 | uint32_t unique; | |
2161 | enum zapi_ipset_notify_owner note; | |
2162 | struct bgp_pbr_match *bgp_pbim; | |
2163 | ||
2164 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2165 | &unique, | |
2166 | ¬e)) | |
2167 | return -1; | |
2168 | ||
2169 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2170 | if (!bgp_pbim) { | |
2171 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2172 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
82e194ed | 2173 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2174 | return 0; |
2175 | } | |
2176 | ||
2177 | switch (note) { | |
2178 | case ZAPI_IPSET_FAIL_INSTALL: | |
2179 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2180 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", | |
2181 | __PRETTY_FUNCTION__); | |
2182 | bgp_pbim->installed = false; | |
2183 | bgp_pbim->install_in_progress = false; | |
2184 | break; | |
2185 | case ZAPI_IPSET_INSTALLED: | |
2186 | bgp_pbim->installed = true; | |
2187 | bgp_pbim->install_in_progress = false; | |
2188 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2189 | zlog_debug("%s: Received IPSET_INSTALLED", | |
2190 | __PRETTY_FUNCTION__); | |
2191 | break; | |
f18a08f5 | 2192 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2193 | case ZAPI_IPSET_REMOVED: |
2194 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2195 | zlog_debug("%s: Received IPSET REMOVED", | |
2196 | __PRETTY_FUNCTION__); | |
2197 | break; | |
2198 | } | |
2199 | ||
2200 | return 0; | |
2201 | } | |
2202 | ||
121f9dee | 2203 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2204 | { |
2205 | uint32_t unique; | |
2206 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2207 | enum zapi_ipset_entry_notify_owner note; | |
2208 | struct bgp_pbr_match_entry *bgp_pbime; | |
2209 | ||
2210 | if (!zapi_ipset_entry_notify_decode( | |
2211 | zclient->ibuf, | |
2212 | &unique, | |
2213 | ipset_name, | |
2214 | ¬e)) | |
2215 | return -1; | |
2216 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2217 | ipset_name, | |
2218 | unique); | |
2219 | if (!bgp_pbime) { | |
2220 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2221 | zlog_debug("%s: Fail to look BGP match entry (%u, ID %u)", |
82e194ed | 2222 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2223 | return 0; |
2224 | } | |
2225 | ||
2226 | switch (note) { | |
2227 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2228 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2229 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
2230 | __PRETTY_FUNCTION__); | |
2231 | bgp_pbime->installed = false; | |
2232 | bgp_pbime->install_in_progress = false; | |
2233 | break; | |
2234 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2235 | { |
9b6d8fcf | 2236 | struct bgp_path_info *path; |
4b7e6066 DS |
2237 | struct bgp_path_info_extra *extra; |
2238 | ||
2239 | bgp_pbime->installed = true; | |
2240 | bgp_pbime->install_in_progress = false; | |
2241 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2242 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
2243 | __PRETTY_FUNCTION__); | |
9b6d8fcf DS |
2244 | /* link bgp_path_info to bpme */ |
2245 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2246 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2247 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2248 | } |
30d50e6d | 2249 | break; |
f18a08f5 | 2250 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2251 | case ZAPI_IPSET_ENTRY_REMOVED: |
2252 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2253 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
2254 | __PRETTY_FUNCTION__); | |
2255 | break; | |
2256 | } | |
2257 | return 0; | |
2258 | } | |
2259 | ||
121f9dee | 2260 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2261 | { |
2262 | uint32_t unique; | |
2263 | enum zapi_iptable_notify_owner note; | |
2264 | struct bgp_pbr_match *bgpm; | |
2265 | ||
2266 | if (!zapi_iptable_notify_decode( | |
2267 | zclient->ibuf, | |
2268 | &unique, | |
2269 | ¬e)) | |
2270 | return -1; | |
2271 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2272 | if (!bgpm) { | |
2273 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed PG |
2274 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
2275 | __PRETTY_FUNCTION__, note, unique); | |
c16a0a62 PG |
2276 | return 0; |
2277 | } | |
2278 | switch (note) { | |
2279 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2280 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2281 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
2282 | __PRETTY_FUNCTION__); | |
2283 | bgpm->installed_in_iptable = false; | |
2284 | bgpm->install_iptable_in_progress = false; | |
2285 | break; | |
2286 | case ZAPI_IPTABLE_INSTALLED: | |
2287 | bgpm->installed_in_iptable = true; | |
2288 | bgpm->install_iptable_in_progress = false; | |
2289 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2290 | zlog_debug("%s: Received IPTABLE_INSTALLED", | |
2291 | __PRETTY_FUNCTION__); | |
a6b07429 | 2292 | bgpm->action->refcnt++; |
c16a0a62 | 2293 | break; |
f18a08f5 | 2294 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2295 | case ZAPI_IPTABLE_REMOVED: |
2296 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2297 | zlog_debug("%s: Received IPTABLE REMOVED", | |
2298 | __PRETTY_FUNCTION__); | |
2299 | break; | |
2300 | } | |
2301 | return 0; | |
2302 | } | |
2303 | ||
6cfe5d15 PG |
2304 | /* this function is used to forge ip rule, |
2305 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2306 | * - or for sample ip rule cmd |
6cfe5d15 | 2307 | */ |
30d50e6d | 2308 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2309 | struct bgp_pbr_action *pbra, |
2310 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2311 | { |
6cfe5d15 | 2312 | struct prefix pfx; |
30d50e6d PG |
2313 | |
2314 | stream_putl(s, 0); /* seqno unused */ | |
8112a7a0 PG |
2315 | if (pbr) |
2316 | stream_putl(s, pbr->priority); | |
2317 | else | |
2318 | stream_putl(s, 0); | |
2319 | /* ruleno unused - priority change | |
2320 | * ruleno permits distinguishing various FS PBR entries | |
2321 | * - FS PBR entries based on ipset/iptables | |
2322 | * - FS PBR entries based on iprule | |
2323 | * the latter may contain default routing information injected by FS | |
2324 | */ | |
6cfe5d15 PG |
2325 | if (pbr) |
2326 | stream_putl(s, pbr->unique); | |
2327 | else | |
2328 | stream_putl(s, pbra->unique); | |
2329 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) | |
2330 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2331 | else { | |
2332 | memset(&pfx, 0, sizeof(pfx)); | |
2333 | pfx.family = AF_INET; | |
2334 | } | |
2335 | stream_putc(s, pfx.family); | |
2336 | stream_putc(s, pfx.prefixlen); | |
2337 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2338 | |
2339 | stream_putw(s, 0); /* src port */ | |
2340 | ||
6cfe5d15 PG |
2341 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2342 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2343 | else { | |
2344 | memset(&pfx, 0, sizeof(pfx)); | |
2345 | pfx.family = AF_INET; | |
2346 | } | |
2347 | stream_putc(s, pfx.family); | |
2348 | stream_putc(s, pfx.prefixlen); | |
2349 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2350 | |
2351 | stream_putw(s, 0); /* dst port */ | |
2352 | ||
6cfe5d15 PG |
2353 | /* if pbr present, fwmark is not used */ |
2354 | if (pbr) | |
2355 | stream_putl(s, 0); | |
2356 | else | |
2357 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d PG |
2358 | |
2359 | stream_putl(s, pbra->table_id); | |
2360 | ||
2361 | stream_putl(s, 0); /* ifindex unused */ | |
2362 | } | |
2363 | ||
2364 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2365 | struct bgp_pbr_match *pbim) | |
2366 | { | |
2367 | stream_putl(s, pbim->unique); | |
2368 | stream_putl(s, pbim->type); | |
2369 | ||
2370 | stream_put(s, pbim->ipset_name, | |
2371 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2372 | } |
2373 | ||
2374 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2375 | struct bgp_pbr_match_entry *pbime) | |
2376 | { | |
2377 | stream_putl(s, pbime->unique); | |
2378 | /* check that back pointer is not null */ | |
2379 | stream_put(s, pbime->backpointer->ipset_name, | |
2380 | ZEBRA_IPSET_NAME_SIZE); | |
2381 | ||
2382 | stream_putc(s, pbime->src.family); | |
2383 | stream_putc(s, pbime->src.prefixlen); | |
2384 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2385 | ||
2386 | stream_putc(s, pbime->dst.family); | |
2387 | stream_putc(s, pbime->dst.prefixlen); | |
2388 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2389 | |
2390 | stream_putw(s, pbime->src_port_min); | |
2391 | stream_putw(s, pbime->src_port_max); | |
2392 | stream_putw(s, pbime->dst_port_min); | |
2393 | stream_putw(s, pbime->dst_port_max); | |
2394 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2395 | } |
2396 | ||
c16a0a62 PG |
2397 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2398 | struct bgp_pbr_action *bpa, | |
2399 | struct bgp_pbr_match *pbm) | |
2400 | { | |
2401 | stream_putl(s, pbm->unique2); | |
2402 | ||
2403 | stream_putl(s, pbm->type); | |
2404 | ||
2405 | stream_putl(s, pbm->flags); | |
2406 | ||
2407 | /* TODO: correlate with what is contained | |
2408 | * into bgp_pbr_action. | |
2409 | * currently only forward supported | |
2410 | */ | |
2411 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2412 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2413 | else | |
2414 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2415 | stream_putl(s, bpa->fwmark); | |
2416 | stream_put(s, pbm->ipset_name, | |
2417 | ZEBRA_IPSET_NAME_SIZE); | |
83360720 PG |
2418 | stream_putw(s, pbm->pkt_len_min); |
2419 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2420 | stream_putw(s, pbm->tcp_flags); |
2421 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2422 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2423 | stream_putc(s, pbm->fragment); |
c16a0a62 PG |
2424 | } |
2425 | ||
ad4cbda1 | 2426 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2427 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2428 | { |
d62a17ae | 2429 | struct bgp *bgp; |
7076bb2f | 2430 | |
d62a17ae | 2431 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2432 | |
d62a17ae | 2433 | /* At this point, we may or may not have BGP instances configured, but |
2434 | * we're only interested in the default VRF (others wouldn't have learnt | |
2435 | * the VRF from Zebra yet.) | |
2436 | */ | |
2437 | bgp = bgp_get_default(); | |
2438 | if (!bgp) | |
2439 | return; | |
ad4cbda1 | 2440 | |
d62a17ae | 2441 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2442 | |
d62a17ae | 2443 | /* Send the client registration */ |
2444 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER); | |
2376c3f2 | 2445 | |
955bfd98 | 2446 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2447 | bgp_lp_event_zebra_up(); |
955bfd98 | 2448 | |
d62a17ae | 2449 | /* TODO - What if we have peers and networks configured, do we have to |
2450 | * kick-start them? | |
2451 | */ | |
7076bb2f FL |
2452 | } |
2453 | ||
121f9dee | 2454 | static int bgp_zebra_process_local_es(ZAPI_CALLBACK_ARGS) |
50f74cf1 | 2455 | { |
2456 | esi_t esi; | |
2457 | struct bgp *bgp = NULL; | |
2458 | struct stream *s = NULL; | |
2459 | char buf[ESI_STR_LEN]; | |
2460 | char buf1[INET6_ADDRSTRLEN]; | |
2461 | struct ipaddr originator_ip; | |
2462 | ||
2463 | memset(&esi, 0, sizeof(esi_t)); | |
2464 | memset(&originator_ip, 0, sizeof(struct ipaddr)); | |
2465 | ||
2466 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2467 | if (!bgp) | |
2468 | return 0; | |
2469 | ||
2470 | s = zclient->ibuf; | |
2471 | stream_get(&esi, s, sizeof(esi_t)); | |
2472 | stream_get(&originator_ip, s, sizeof(struct ipaddr)); | |
2473 | ||
2474 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2475 | zlog_debug("Rx %s ESI %s originator-ip %s", | |
2476 | (cmd == ZEBRA_LOCAL_ES_ADD) ? "add" : "del", | |
2477 | esi_to_str(&esi, buf, sizeof(buf)), | |
2478 | ipaddr2str(&originator_ip, buf1, sizeof(buf1))); | |
2479 | ||
2480 | if (cmd == ZEBRA_LOCAL_ES_ADD) | |
2481 | bgp_evpn_local_es_add(bgp, &esi, &originator_ip); | |
2482 | else | |
2483 | bgp_evpn_local_es_del(bgp, &esi, &originator_ip); | |
2484 | return 0; | |
2485 | } | |
2486 | ||
121f9dee | 2487 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 2488 | { |
c48d9f5f | 2489 | int filter = 0; |
fe1dc5a3 | 2490 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 2491 | vni_t l3vni = 0; |
fe1dc5a3 | 2492 | struct ethaddr rmac; |
b67a60d2 | 2493 | struct in_addr originator_ip; |
fe1dc5a3 | 2494 | struct stream *s; |
0483af6e | 2495 | ifindex_t svi_ifindex; |
fe1dc5a3 MK |
2496 | |
2497 | memset(&rmac, 0, sizeof(struct ethaddr)); | |
b67a60d2 | 2498 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2499 | s = zclient->ibuf; |
2500 | l3vni = stream_getl(s); | |
b67a60d2 | 2501 | if (cmd == ZEBRA_L3VNI_ADD) { |
fe1dc5a3 | 2502 | stream_get(&rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2503 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2504 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2505 | svi_ifindex = stream_getl(s); |
fe1dc5a3 | 2506 | |
0483af6e | 2507 | if (BGP_DEBUG(zebra, ZEBRA)) |
2508 | zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC %s filter %s svi-if %u", | |
2509 | vrf_id_to_name(vrf_id), l3vni, | |
2510 | prefix_mac2str(&rmac, buf, sizeof(buf)), | |
2511 | filter ? "prefix-routes-only" : "none", | |
2512 | svi_ifindex); | |
fe1dc5a3 | 2513 | |
c48d9f5f | 2514 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &rmac, originator_ip, |
0483af6e | 2515 | filter, svi_ifindex); |
2516 | } else { | |
2517 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2518 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2519 | vrf_id_to_name(vrf_id), l3vni); | |
2520 | ||
fe1dc5a3 | 2521 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 2522 | } |
fe1dc5a3 MK |
2523 | |
2524 | return 0; | |
2525 | } | |
2526 | ||
121f9dee | 2527 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2528 | { |
d62a17ae | 2529 | struct stream *s; |
2530 | vni_t vni; | |
2531 | struct bgp *bgp; | |
a4d82a8a | 2532 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2533 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 2534 | struct in_addr mcast_grp = {INADDR_ANY}; |
d62a17ae | 2535 | |
2536 | s = zclient->ibuf; | |
2537 | vni = stream_getl(s); | |
121f9dee | 2538 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 2539 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 2540 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 2541 | mcast_grp.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2542 | } |
2543 | ||
d62a17ae | 2544 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2545 | if (!bgp) | |
2546 | return 0; | |
2547 | ||
2548 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 | 2549 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
121f9dee | 2550 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
a4d82a8a PZ |
2551 | vrf_id_to_name(vrf_id), vni, |
2552 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2553 | |
121f9dee | 2554 | if (cmd == ZEBRA_VNI_ADD) |
d62a17ae | 2555 | return bgp_evpn_local_vni_add( |
29c53922 | 2556 | bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id, |
76d07c7a | 2557 | tenant_vrf_id, mcast_grp); |
d62a17ae | 2558 | else |
2559 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2560 | } |
2561 | ||
121f9dee | 2562 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2563 | { |
d62a17ae | 2564 | struct stream *s; |
2565 | vni_t vni; | |
2566 | struct bgp *bgp; | |
2567 | struct ethaddr mac; | |
2568 | struct ipaddr ip; | |
2569 | int ipa_len; | |
2570 | char buf[ETHER_ADDR_STRLEN]; | |
2571 | char buf1[INET6_ADDRSTRLEN]; | |
f07e1c99 | 2572 | uint8_t flags = 0; |
2573 | uint32_t seqnum = 0; | |
ec0ab544 | 2574 | int state = 0; |
d62a17ae | 2575 | |
2576 | memset(&ip, 0, sizeof(ip)); | |
2577 | s = zclient->ibuf; | |
2578 | vni = stream_getl(s); | |
28328ea9 | 2579 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2580 | ipa_len = stream_getl(s); |
2581 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2582 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 2583 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 2584 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 2585 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 2586 | ipa_len); |
d62a17ae | 2587 | return -1; |
2588 | } | |
2589 | ||
2590 | if (ipa_len) { | |
2591 | ip.ipa_type = | |
2592 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2593 | stream_get(&ip.ip.addr, s, ipa_len); | |
2594 | } | |
121f9dee | 2595 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 2596 | flags = stream_getc(s); |
2597 | seqnum = stream_getl(s); | |
ec0ab544 AK |
2598 | } else { |
2599 | state = stream_getl(s); | |
f07e1c99 | 2600 | } |
d62a17ae | 2601 | |
2602 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2603 | if (!bgp) | |
2604 | return 0; | |
2605 | ||
2606 | if (BGP_DEBUG(zebra, ZEBRA)) | |
ec0ab544 | 2607 | zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u seq %u state %d", |
121f9dee | 2608 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1a98c087 | 2609 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), |
ec0ab544 AK |
2610 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum, |
2611 | state); | |
d62a17ae | 2612 | |
121f9dee | 2613 | if (cmd == ZEBRA_MACIP_ADD) |
f07e1c99 | 2614 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
2615 | flags, seqnum); | |
d62a17ae | 2616 | else |
ec0ab544 | 2617 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
128ea8ab | 2618 | } |
6aeb9e78 | 2619 | |
121f9dee | 2620 | static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
2621 | { |
2622 | struct stream *s = NULL; | |
2623 | struct bgp *bgp_vrf = NULL; | |
2624 | struct prefix p; | |
2625 | char buf[PREFIX_STRLEN]; | |
2626 | ||
2627 | memset(&p, 0, sizeof(struct prefix)); | |
2628 | s = zclient->ibuf; | |
2629 | stream_get(&p, s, sizeof(struct prefix)); | |
2630 | ||
2631 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2632 | if (!bgp_vrf) | |
2633 | return; | |
2634 | ||
2635 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2636 | zlog_debug("Recv prefix %s %s on vrf %s", | |
2637 | prefix2str(&p, buf, sizeof(buf)), | |
2638 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
2639 | vrf_id_to_name(vrf_id)); | |
2640 | ||
2641 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2642 | ||
2643 | if (p.family == AF_INET) | |
d90b788e A |
2644 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2645 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 2646 | else |
d90b788e A |
2647 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2648 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2649 | |
2650 | } else { | |
2651 | if (p.family == AF_INET) | |
d90b788e A |
2652 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
2653 | SAFI_UNICAST); | |
31310b25 | 2654 | else |
d90b788e A |
2655 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
2656 | SAFI_UNICAST); | |
31310b25 MK |
2657 | } |
2658 | } | |
2659 | ||
121f9dee | 2660 | static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
2661 | { |
2662 | struct stream *s = NULL; | |
2663 | uint8_t response_keep; | |
2664 | uint32_t first; | |
2665 | uint32_t last; | |
aec865e4 FR |
2666 | uint8_t proto; |
2667 | unsigned short instance; | |
955bfd98 PZ |
2668 | |
2669 | s = zclient->ibuf; | |
aec865e4 FR |
2670 | STREAM_GETC(s, proto); |
2671 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2672 | STREAM_GETC(s, response_keep); |
2673 | STREAM_GETL(s, first); | |
2674 | STREAM_GETL(s, last); | |
2675 | ||
aec865e4 | 2676 | if (zclient->redist_default != proto) { |
e50f7cfd | 2677 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 2678 | proto); |
aec865e4 FR |
2679 | return; |
2680 | } | |
2681 | if (zclient->instance != instance) { | |
e50f7cfd | 2682 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 2683 | proto); |
aec865e4 FR |
2684 | return; |
2685 | } | |
2686 | ||
955bfd98 PZ |
2687 | if (first > last || |
2688 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2689 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2690 | ||
e50f7cfd | 2691 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 2692 | __func__, first, last); |
955bfd98 PZ |
2693 | return; |
2694 | } | |
2695 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2696 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2697 | first, last, response_keep); | |
2698 | } | |
2699 | ||
e70e9f8e | 2700 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2701 | |
2702 | stream_failure: /* for STREAM_GETX */ | |
2703 | return; | |
2704 | } | |
2705 | ||
342213ea DS |
2706 | extern struct zebra_privs_t bgpd_privs; |
2707 | ||
f533be73 | 2708 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2709 | { |
d62a17ae | 2710 | zclient_num_connects = 0; |
2711 | ||
2712 | /* Set default values. */ | |
26f63a1e | 2713 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2714 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2715 | zclient->zebra_connected = bgp_zebra_connected; |
2716 | zclient->router_id_update = bgp_router_id_update; | |
2717 | zclient->interface_add = bgp_interface_add; | |
2718 | zclient->interface_delete = bgp_interface_delete; | |
2719 | zclient->interface_address_add = bgp_interface_address_add; | |
2720 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2721 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2722 | zclient->interface_nbr_address_delete = | |
2723 | bgp_interface_nbr_address_delete; | |
2724 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2725 | zclient->redistribute_route_add = zebra_read_route; |
2726 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 2727 | zclient->interface_up = bgp_interface_up; |
2728 | zclient->interface_down = bgp_interface_down; | |
d62a17ae | 2729 | zclient->nexthop_update = bgp_read_nexthop_update; |
2730 | zclient->import_check_update = bgp_read_import_check_update; | |
2731 | zclient->fec_update = bgp_read_fec_update; | |
50f74cf1 | 2732 | zclient->local_es_add = bgp_zebra_process_local_es; |
2733 | zclient->local_es_del = bgp_zebra_process_local_es; | |
d62a17ae | 2734 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
2735 | zclient->local_vni_del = bgp_zebra_process_local_vni; | |
2736 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
2737 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
2738 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
2739 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
2740 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
2741 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 2742 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
2743 | zclient->rule_notify_owner = rule_notify_owner; |
2744 | zclient->ipset_notify_owner = ipset_notify_owner; | |
2745 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 2746 | zclient->iptable_notify_owner = iptable_notify_owner; |
f533be73 | 2747 | zclient->instance = instance; |
718e3744 | 2748 | } |
bb86c601 | 2749 | |
d62a17ae | 2750 | void bgp_zebra_destroy(void) |
bb86c601 | 2751 | { |
d62a17ae | 2752 | if (zclient == NULL) |
2753 | return; | |
2754 | zclient_stop(zclient); | |
2755 | zclient_free(zclient); | |
2756 | zclient = NULL; | |
bb86c601 | 2757 | } |
afbb1c59 | 2758 | |
d62a17ae | 2759 | int bgp_zebra_num_connects(void) |
afbb1c59 | 2760 | { |
d62a17ae | 2761 | return zclient_num_connects; |
afbb1c59 | 2762 | } |
30d50e6d | 2763 | |
6cfe5d15 PG |
2764 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
2765 | struct bgp_pbr_rule *pbr, | |
2766 | bool install) | |
30d50e6d PG |
2767 | { |
2768 | struct stream *s; | |
2769 | ||
6cfe5d15 | 2770 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 2771 | return; |
6cfe5d15 PG |
2772 | if (pbr && pbr->install_in_progress) |
2773 | return; | |
2774 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2775 | if (pbr) | |
2776 | zlog_debug("%s: table %d (ip rule) %d", | |
2777 | __PRETTY_FUNCTION__, | |
2778 | pbra->table_id, install); | |
2779 | else | |
2780 | zlog_debug("%s: table %d fwmark %d %d", | |
2781 | __PRETTY_FUNCTION__, | |
2782 | pbra->table_id, pbra->fwmark, install); | |
2783 | } | |
30d50e6d PG |
2784 | s = zclient->obuf; |
2785 | stream_reset(s); | |
2786 | ||
2787 | zclient_create_header(s, | |
2788 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
2789 | VRF_DEFAULT); | |
2790 | stream_putl(s, 1); /* send one pbr action */ | |
2791 | ||
6cfe5d15 | 2792 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
2793 | |
2794 | stream_putw_at(s, 0, stream_get_endp(s)); | |
6cfe5d15 PG |
2795 | if (!zclient_send_message(zclient) && install) { |
2796 | if (!pbr) | |
2797 | pbra->install_in_progress = true; | |
2798 | else | |
2799 | pbr->install_in_progress = true; | |
2800 | } | |
30d50e6d PG |
2801 | } |
2802 | ||
2803 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
2804 | { | |
2805 | struct stream *s; | |
2806 | ||
2807 | if (pbrim->install_in_progress) | |
2808 | return; | |
f0936054 | 2809 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2810 | zlog_debug("%s: name %s type %d %d, ID %u", |
f0936054 | 2811 | __PRETTY_FUNCTION__, |
88055124 PG |
2812 | pbrim->ipset_name, pbrim->type, |
2813 | install, pbrim->unique); | |
30d50e6d PG |
2814 | s = zclient->obuf; |
2815 | stream_reset(s); | |
2816 | ||
2817 | zclient_create_header(s, | |
2818 | install ? ZEBRA_IPSET_CREATE : | |
2819 | ZEBRA_IPSET_DESTROY, | |
2820 | VRF_DEFAULT); | |
2821 | ||
2822 | stream_putl(s, 1); /* send one pbr action */ | |
2823 | ||
2824 | bgp_encode_pbr_ipset_match(s, pbrim); | |
2825 | ||
2826 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2827 | if (!zclient_send_message(zclient) && install) | |
2828 | pbrim->install_in_progress = true; | |
2829 | } | |
2830 | ||
2831 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
2832 | bool install) | |
2833 | { | |
2834 | struct stream *s; | |
2835 | ||
2836 | if (pbrime->install_in_progress) | |
2837 | return; | |
f0936054 | 2838 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2839 | zlog_debug("%s: name %s %d %d, ID %u", __PRETTY_FUNCTION__, |
f0936054 | 2840 | pbrime->backpointer->ipset_name, |
88055124 | 2841 | pbrime->unique, install, pbrime->unique); |
30d50e6d PG |
2842 | s = zclient->obuf; |
2843 | stream_reset(s); | |
2844 | ||
2845 | zclient_create_header(s, | |
2846 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
2847 | ZEBRA_IPSET_ENTRY_DELETE, | |
2848 | VRF_DEFAULT); | |
2849 | ||
2850 | stream_putl(s, 1); /* send one pbr action */ | |
2851 | ||
2852 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
2853 | ||
2854 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2855 | if (!zclient_send_message(zclient) && install) | |
2856 | pbrime->install_in_progress = true; | |
2857 | } | |
c16a0a62 | 2858 | |
4762c213 PG |
2859 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s) |
2860 | { | |
2861 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2862 | struct bgp_pbr_interface_head *head; | |
2863 | struct bgp_pbr_interface *pbr_if; | |
2864 | struct interface *ifp; | |
2865 | ||
2866 | if (!bgp_pbr_cfg) | |
2867 | return; | |
2868 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2869 | ||
2870 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2871 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); | |
2872 | if (ifp) | |
2873 | stream_putl(s, ifp->ifindex); | |
2874 | } | |
2875 | } | |
2876 | ||
2877 | static int bgp_pbr_get_ifnumber(struct bgp *bgp) | |
2878 | { | |
2879 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2880 | struct bgp_pbr_interface_head *head; | |
2881 | struct bgp_pbr_interface *pbr_if; | |
2882 | int cnt = 0; | |
2883 | ||
2884 | if (!bgp_pbr_cfg) | |
2885 | return 0; | |
2886 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2887 | ||
2888 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
2889 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) | |
2890 | cnt++; | |
2891 | } | |
2892 | return cnt; | |
2893 | } | |
2894 | ||
c16a0a62 PG |
2895 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
2896 | struct bgp_pbr_match *pbm, | |
2897 | bool install) | |
2898 | { | |
2899 | struct stream *s; | |
b5c40105 | 2900 | int ret = 0; |
4762c213 | 2901 | int nb_interface; |
c16a0a62 PG |
2902 | |
2903 | if (pbm->install_iptable_in_progress) | |
2904 | return; | |
f0936054 | 2905 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2906 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", |
f0936054 | 2907 | __PRETTY_FUNCTION__, pbm->ipset_name, |
88055124 PG |
2908 | pbm->type, pba->fwmark, install, |
2909 | pbm->unique2); | |
c16a0a62 PG |
2910 | s = zclient->obuf; |
2911 | stream_reset(s); | |
2912 | ||
2913 | zclient_create_header(s, | |
2914 | install ? ZEBRA_IPTABLE_ADD : | |
2915 | ZEBRA_IPTABLE_DELETE, | |
2916 | VRF_DEFAULT); | |
2917 | ||
2918 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
4762c213 PG |
2919 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp); |
2920 | stream_putl(s, nb_interface); | |
2921 | if (nb_interface) | |
2922 | bgp_encode_pbr_interface_list(pba->bgp, s); | |
c16a0a62 | 2923 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
2924 | ret = zclient_send_message(zclient); |
2925 | if (install) { | |
2926 | if (ret) | |
2927 | pba->refcnt++; | |
2928 | else | |
2929 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 2930 | } |
c16a0a62 | 2931 | } |
f7df1907 PG |
2932 | |
2933 | /* inject in table <table_id> a default route to: | |
2934 | * - if nexthop IP is present : to this nexthop | |
2935 | * - if vrf is different from local : to the matching VRF | |
2936 | */ | |
2937 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
2938 | afi_t afi, uint32_t table_id, bool announce) | |
2939 | { | |
2940 | struct zapi_nexthop *api_nh; | |
2941 | struct zapi_route api; | |
2942 | struct prefix p; | |
2943 | ||
2944 | if (!nh || nh->type != NEXTHOP_TYPE_IPV4 | |
2945 | || nh->vrf_id == VRF_UNKNOWN) | |
2946 | return; | |
2947 | memset(&p, 0, sizeof(struct prefix)); | |
2948 | /* default route */ | |
2949 | if (afi != AFI_IP) | |
2950 | return; | |
2951 | p.family = AF_INET; | |
2952 | memset(&api, 0, sizeof(api)); | |
2953 | api.vrf_id = bgp->vrf_id; | |
2954 | api.type = ZEBRA_ROUTE_BGP; | |
2955 | api.safi = SAFI_UNICAST; | |
2956 | api.prefix = p; | |
2957 | api.tableid = table_id; | |
2958 | api.nexthop_num = 1; | |
2959 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
2960 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
2961 | api_nh = &api.nexthops[0]; | |
2962 | ||
2963 | /* redirect IP */ | |
2964 | if (nh->gate.ipv4.s_addr) { | |
2965 | char buff[PREFIX_STRLEN]; | |
2966 | ||
2967 | api_nh->vrf_id = nh->vrf_id; | |
2968 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
2969 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
2970 | ||
2971 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
2972 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2973 | zlog_info("BGP: %s default route to %s table %d (redirect IP)", |
2974 | announce ? "adding" : "withdrawing", | |
f7df1907 PG |
2975 | buff, table_id); |
2976 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2977 | : ZEBRA_ROUTE_DELETE, | |
2978 | zclient, &api); | |
2979 | } else if (nh->vrf_id != bgp->vrf_id) { | |
2980 | struct vrf *vrf; | |
eb4244f8 | 2981 | struct interface *ifp; |
f7df1907 | 2982 | |
eb4244f8 | 2983 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
2984 | if (!vrf) |
2985 | return; | |
eb4244f8 PG |
2986 | /* create default route with interface <VRF> |
2987 | * with nexthop-vrf <VRF> | |
f7df1907 | 2988 | */ |
eb4244f8 PG |
2989 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
2990 | if (!ifp) | |
2991 | return; | |
2992 | api_nh->vrf_id = nh->vrf_id; | |
2993 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
2994 | api_nh->ifindex = ifp->ifindex; | |
2995 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2996 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
2997 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
2998 | vrf->name, table_id); |
2999 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3000 | : ZEBRA_ROUTE_DELETE, | |
3001 | zclient, &api); | |
f7df1907 PG |
3002 | return; |
3003 | } | |
3004 | } |