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Commit | Line | Data |
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718e3744 | 1 | /* zebra client |
896014f4 DL |
2 | * Copyright (C) 1997, 98, 99 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "command.h" | |
24 | #include "stream.h" | |
25 | #include "network.h" | |
26 | #include "prefix.h" | |
27 | #include "log.h" | |
28 | #include "sockunion.h" | |
29 | #include "zclient.h" | |
30 | #include "routemap.h" | |
31 | #include "thread.h" | |
3f9c7369 | 32 | #include "queue.h" |
6e919709 | 33 | #include "memory.h" |
856ca177 | 34 | #include "lib/json.h" |
2376c3f2 | 35 | #include "lib/bfd.h" |
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 | ||
3c3c3252 | 205 | static int bgp_ifp_destroy(struct interface *ifp) |
718e3744 | 206 | { |
d62a17ae | 207 | struct bgp *bgp; |
718e3744 | 208 | |
3c3c3252 | 209 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
a4499b83 | 210 | |
d62a17ae | 211 | if (BGP_DEBUG(zebra, ZEBRA)) |
3835984f | 212 | zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf_id, ifp->name); |
a39275d7 | 213 | |
85751d1d DS |
214 | if (bgp) |
215 | bgp_update_interface_nbrs(bgp, ifp, NULL); | |
64745052 | 216 | |
6a69ac51 DS |
217 | bgp_mac_del_mac_entry(ifp); |
218 | ||
d62a17ae | 219 | return 0; |
718e3744 | 220 | } |
221 | ||
ddbf3e60 | 222 | static int bgp_ifp_up(struct interface *ifp) |
718e3744 | 223 | { |
d62a17ae | 224 | struct connected *c; |
225 | struct nbr_connected *nc; | |
226 | struct listnode *node, *nnode; | |
227 | struct bgp *bgp; | |
6aeb9e78 | 228 | |
ddbf3e60 | 229 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 230 | |
6a69ac51 DS |
231 | bgp_mac_add_mac_entry(ifp); |
232 | ||
d62a17ae | 233 | if (BGP_DEBUG(zebra, ZEBRA)) |
ddbf3e60 | 234 | zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 235 | |
85751d1d DS |
236 | if (!bgp) |
237 | return 0; | |
238 | ||
d62a17ae | 239 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
240 | bgp_connected_add(bgp, c); | |
718e3744 | 241 | |
d62a17ae | 242 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
243 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 244 | |
d62a17ae | 245 | return 0; |
718e3744 | 246 | } |
247 | ||
b0b69e59 | 248 | static int bgp_ifp_down(struct interface *ifp) |
718e3744 | 249 | { |
d62a17ae | 250 | struct connected *c; |
251 | struct nbr_connected *nc; | |
252 | struct listnode *node, *nnode; | |
253 | struct bgp *bgp; | |
c19fe3c7 | 254 | struct peer *peer; |
6aeb9e78 | 255 | |
b0b69e59 | 256 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 257 | |
6a69ac51 DS |
258 | bgp_mac_del_mac_entry(ifp); |
259 | ||
d62a17ae | 260 | if (BGP_DEBUG(zebra, ZEBRA)) |
b0b69e59 | 261 | zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 262 | |
85751d1d DS |
263 | if (!bgp) |
264 | return 0; | |
265 | ||
d62a17ae | 266 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
267 | bgp_connected_delete(bgp, c); | |
718e3744 | 268 | |
d62a17ae | 269 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
270 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 271 | |
d62a17ae | 272 | /* Fast external-failover */ |
c19fe3c7 | 273 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 274 | |
d62a17ae | 275 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 276 | #if defined(HAVE_CUMULUS) |
d62a17ae | 277 | /* Take down directly connected EBGP peers as well as |
278 | * 1-hop BFD | |
279 | * tracked (directly connected) IBGP peers. | |
280 | */ | |
c8d6f0d6 DA |
281 | if ((peer->ttl != BGP_DEFAULT_TTL) |
282 | && (peer->gtsm_hops != 1) | |
d62a17ae | 283 | && (!peer->bfd_info |
284 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 285 | #else |
d62a17ae | 286 | /* Take down directly connected EBGP peers */ |
c8d6f0d6 DA |
287 | if ((peer->ttl != BGP_DEFAULT_TTL) |
288 | && (peer->gtsm_hops != 1)) | |
8c4f6381 | 289 | #endif |
d62a17ae | 290 | continue; |
718e3744 | 291 | |
d62a17ae | 292 | if (ifp == peer->nexthop.ifp) { |
293 | BGP_EVENT_ADD(peer, BGP_Stop); | |
294 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
295 | } | |
296 | } | |
297 | } | |
718e3744 | 298 | |
d62a17ae | 299 | return 0; |
718e3744 | 300 | } |
301 | ||
121f9dee | 302 | static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 303 | { |
d62a17ae | 304 | struct connected *ifc; |
2f9123e0 DS |
305 | struct bgp *bgp; |
306 | ||
307 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 308 | |
121f9dee | 309 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 310 | |
311 | if (ifc == NULL) | |
312 | return 0; | |
313 | ||
314 | if (bgp_debug_zebra(ifc->address)) { | |
315 | char buf[PREFIX2STR_BUFFER]; | |
316 | prefix2str(ifc->address, buf, sizeof(buf)); | |
317 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
318 | ifc->ifp->name, buf); | |
319 | } | |
320 | ||
85751d1d DS |
321 | if (!bgp) |
322 | return 0; | |
323 | ||
d62a17ae | 324 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 325 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 326 | |
d62a17ae | 327 | /* If we have learnt of any neighbors on this interface, |
328 | * check to kick off any BGP interface-based neighbors, | |
329 | * but only if this is a link-local address. | |
330 | */ | |
331 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
332 | && !list_isempty(ifc->ifp->nbr_connected)) | |
333 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
334 | } | |
335 | ||
336 | return 0; | |
718e3744 | 337 | } |
338 | ||
121f9dee | 339 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 340 | { |
d62a17ae | 341 | struct connected *ifc; |
342 | struct bgp *bgp; | |
6aeb9e78 | 343 | |
2f9123e0 | 344 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 345 | |
121f9dee | 346 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 347 | |
d62a17ae | 348 | if (ifc == NULL) |
349 | return 0; | |
718e3744 | 350 | |
d62a17ae | 351 | if (bgp_debug_zebra(ifc->address)) { |
352 | char buf[PREFIX2STR_BUFFER]; | |
353 | prefix2str(ifc->address, buf, sizeof(buf)); | |
354 | zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id, | |
355 | ifc->ifp->name, buf); | |
356 | } | |
a39275d7 | 357 | |
85751d1d | 358 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 359 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 360 | } |
718e3744 | 361 | |
721c0857 | 362 | connected_free(&ifc); |
718e3744 | 363 | |
d62a17ae | 364 | return 0; |
718e3744 | 365 | } |
366 | ||
121f9dee | 367 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 368 | { |
d62a17ae | 369 | struct nbr_connected *ifc = NULL; |
370 | struct bgp *bgp; | |
371 | ||
121f9dee | 372 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 373 | |
374 | if (ifc == NULL) | |
375 | return 0; | |
376 | ||
377 | if (bgp_debug_zebra(ifc->address)) { | |
378 | char buf[PREFIX2STR_BUFFER]; | |
379 | prefix2str(ifc->address, buf, sizeof(buf)); | |
380 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id, | |
381 | ifc->ifp->name, buf); | |
382 | } | |
383 | ||
384 | if (if_is_operative(ifc->ifp)) { | |
385 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
386 | if (bgp) | |
387 | bgp_nbr_connected_add(bgp, ifc); | |
388 | } | |
389 | ||
390 | return 0; | |
a80beece DS |
391 | } |
392 | ||
121f9dee | 393 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 394 | { |
d62a17ae | 395 | struct nbr_connected *ifc = NULL; |
396 | struct bgp *bgp; | |
6aeb9e78 | 397 | |
121f9dee | 398 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 399 | |
d62a17ae | 400 | if (ifc == NULL) |
401 | return 0; | |
a80beece | 402 | |
d62a17ae | 403 | if (bgp_debug_zebra(ifc->address)) { |
404 | char buf[PREFIX2STR_BUFFER]; | |
405 | prefix2str(ifc->address, buf, sizeof(buf)); | |
406 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id, | |
407 | ifc->ifp->name, buf); | |
408 | } | |
a80beece | 409 | |
d62a17ae | 410 | if (if_is_operative(ifc->ifp)) { |
411 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
412 | if (bgp) | |
413 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
414 | } | |
a80beece | 415 | |
d62a17ae | 416 | nbr_connected_free(ifc); |
a80beece | 417 | |
d62a17ae | 418 | return 0; |
a80beece DS |
419 | } |
420 | ||
bfcd43b2 | 421 | /* VRF update for an interface. */ |
121f9dee | 422 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 423 | { |
d62a17ae | 424 | struct interface *ifp; |
425 | vrf_id_t new_vrf_id; | |
426 | struct connected *c; | |
427 | struct nbr_connected *nc; | |
428 | struct listnode *node, *nnode; | |
429 | struct bgp *bgp; | |
c19fe3c7 | 430 | struct peer *peer; |
bfcd43b2 | 431 | |
d62a17ae | 432 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
433 | &new_vrf_id); | |
434 | if (!ifp) | |
435 | return 0; | |
bfcd43b2 | 436 | |
d62a17ae | 437 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
438 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
439 | ifp->name, new_vrf_id); | |
bfcd43b2 | 440 | |
d62a17ae | 441 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 442 | |
85751d1d DS |
443 | if (bgp) { |
444 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
445 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 446 | |
85751d1d DS |
447 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
448 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 449 | |
85751d1d DS |
450 | /* Fast external-failover */ |
451 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
452 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
c8d6f0d6 DA |
453 | if ((peer->ttl != BGP_DEFAULT_TTL) |
454 | && (peer->gtsm_hops != 1)) | |
85751d1d | 455 | continue; |
bfcd43b2 | 456 | |
85751d1d DS |
457 | if (ifp == peer->nexthop.ifp) |
458 | BGP_EVENT_ADD(peer, BGP_Stop); | |
459 | } | |
d62a17ae | 460 | } |
461 | } | |
bfcd43b2 | 462 | |
a36898e7 | 463 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 464 | |
d62a17ae | 465 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
466 | if (!bgp) | |
467 | return 0; | |
bfcd43b2 | 468 | |
d62a17ae | 469 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
470 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 471 | |
d62a17ae | 472 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
473 | bgp_nbr_connected_add(bgp, nc); | |
474 | return 0; | |
bfcd43b2 | 475 | } |
476 | ||
718e3744 | 477 | /* Zebra route add and delete treatment. */ |
121f9dee | 478 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 479 | { |
9de1f7ff | 480 | enum nexthop_types_t nhtype; |
74489921 RW |
481 | struct zapi_route api; |
482 | union g_addr nexthop; | |
9de1f7ff | 483 | ifindex_t ifindex; |
74489921 | 484 | int add, i; |
d62a17ae | 485 | struct bgp *bgp; |
486 | ||
487 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
488 | if (!bgp) | |
489 | return 0; | |
490 | ||
74489921 RW |
491 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
492 | return -1; | |
d62a17ae | 493 | |
74489921 RW |
494 | /* we completely ignore srcdest routes for now. */ |
495 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
496 | return 0; | |
d62a17ae | 497 | |
74489921 RW |
498 | /* ignore link-local address. */ |
499 | if (api.prefix.family == AF_INET6 | |
500 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
501 | return 0; | |
d62a17ae | 502 | |
74489921 RW |
503 | nexthop = api.nexthops[0].gate; |
504 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 505 | nhtype = api.nexthops[0].type; |
d62a17ae | 506 | |
121f9dee | 507 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 508 | if (add) { |
d62a17ae | 509 | /* |
510 | * The ADD message is actually an UPDATE and there is no | |
511 | * explicit DEL | |
512 | * for a prior redistributed route, if any. So, perform an | |
513 | * implicit | |
514 | * DEL processing for the same redistributed route from any | |
515 | * other | |
516 | * source type. | |
517 | */ | |
518 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
519 | if (i != api.type) | |
74489921 | 520 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 521 | api.instance); |
522 | } | |
523 | ||
524 | /* Now perform the add/update. */ | |
74489921 | 525 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
526 | nhtype, api.metric, api.type, api.instance, |
527 | api.tag); | |
d62a17ae | 528 | } else { |
74489921 RW |
529 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
530 | api.instance); | |
a39275d7 | 531 | } |
d62a17ae | 532 | |
74489921 RW |
533 | if (bgp_debug_zebra(&api.prefix)) { |
534 | char buf[2][PREFIX_STRLEN]; | |
535 | ||
536 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
77e62f2b | 537 | if (add) { |
538 | inet_ntop(api.prefix.family, &nexthop, buf[1], | |
539 | sizeof(buf[1])); | |
540 | zlog_debug( | |
541 | "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI, | |
542 | vrf_id, zebra_route_string(api.type), | |
543 | api.instance, buf[0], buf[1], nhtype, | |
544 | ifindex, api.metric, api.tag); | |
545 | } else { | |
546 | zlog_debug( | |
547 | "Rx route DEL VRF %u %s[%d] %s", | |
548 | vrf_id, zebra_route_string(api.type), | |
549 | api.instance, buf[0]); | |
550 | } | |
d62a17ae | 551 | } |
552 | ||
553 | return 0; | |
718e3744 | 554 | } |
6b0655a2 | 555 | |
d62a17ae | 556 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 557 | { |
f4e14fdb | 558 | struct vrf *vrf; |
d62a17ae | 559 | struct listnode *cnode; |
560 | struct interface *ifp; | |
561 | struct connected *connected; | |
562 | struct prefix_ipv4 p; | |
563 | struct prefix *cp; | |
564 | ||
f4e14fdb RW |
565 | vrf = vrf_lookup_by_id(vrf_id); |
566 | if (!vrf) | |
567 | return NULL; | |
568 | ||
d62a17ae | 569 | p.family = AF_INET; |
570 | p.prefix = *addr; | |
571 | p.prefixlen = IPV4_MAX_BITLEN; | |
572 | ||
451fda4f | 573 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 574 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
575 | cp = connected->address; | |
576 | ||
577 | if (cp->family == AF_INET) | |
578 | if (prefix_match(cp, (struct prefix *)&p)) | |
579 | return ifp; | |
580 | } | |
718e3744 | 581 | } |
d62a17ae | 582 | return NULL; |
718e3744 | 583 | } |
584 | ||
d62a17ae | 585 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 586 | { |
f4e14fdb | 587 | struct vrf *vrf; |
d62a17ae | 588 | struct listnode *cnode; |
589 | struct interface *ifp; | |
590 | struct connected *connected; | |
591 | struct prefix *cp; | |
592 | ||
f4e14fdb RW |
593 | vrf = vrf_lookup_by_id(vrf_id); |
594 | if (!vrf) | |
595 | return NULL; | |
596 | ||
451fda4f | 597 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 598 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
599 | cp = connected->address; | |
600 | ||
601 | if (cp->family == AF_INET) | |
602 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
603 | return ifp; | |
604 | } | |
718e3744 | 605 | } |
d62a17ae | 606 | return NULL; |
718e3744 | 607 | } |
608 | ||
d62a17ae | 609 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
610 | vrf_id_t vrf_id) | |
718e3744 | 611 | { |
f4e14fdb | 612 | struct vrf *vrf; |
d62a17ae | 613 | struct listnode *cnode; |
614 | struct interface *ifp; | |
615 | struct connected *connected; | |
616 | struct prefix_ipv6 p; | |
617 | struct prefix *cp; | |
618 | ||
f4e14fdb RW |
619 | vrf = vrf_lookup_by_id(vrf_id); |
620 | if (!vrf) | |
621 | return NULL; | |
622 | ||
d62a17ae | 623 | p.family = AF_INET6; |
624 | p.prefix = *addr; | |
625 | p.prefixlen = IPV6_MAX_BITLEN; | |
626 | ||
451fda4f | 627 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 628 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
629 | cp = connected->address; | |
630 | ||
631 | if (cp->family == AF_INET6) | |
632 | if (prefix_match(cp, (struct prefix *)&p)) { | |
633 | if (IN6_IS_ADDR_LINKLOCAL( | |
634 | &cp->u.prefix6)) { | |
635 | if (ifindex == ifp->ifindex) | |
636 | return ifp; | |
637 | } else | |
638 | return ifp; | |
639 | } | |
640 | } | |
718e3744 | 641 | } |
d62a17ae | 642 | return NULL; |
718e3744 | 643 | } |
644 | ||
d62a17ae | 645 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
646 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 647 | { |
f4e14fdb | 648 | struct vrf *vrf; |
d62a17ae | 649 | struct listnode *cnode; |
650 | struct interface *ifp; | |
651 | struct connected *connected; | |
652 | struct prefix *cp; | |
653 | ||
f4e14fdb RW |
654 | vrf = vrf_lookup_by_id(vrf_id); |
655 | if (!vrf) | |
656 | return NULL; | |
657 | ||
451fda4f | 658 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 659 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
660 | cp = connected->address; | |
661 | ||
662 | if (cp->family == AF_INET6) | |
663 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
664 | if (IN6_IS_ADDR_LINKLOCAL( | |
665 | &cp->u.prefix6)) { | |
666 | if (ifindex == ifp->ifindex) | |
667 | return ifp; | |
668 | } else | |
669 | return ifp; | |
670 | } | |
671 | } | |
718e3744 | 672 | } |
d62a17ae | 673 | return NULL; |
718e3744 | 674 | } |
675 | ||
d62a17ae | 676 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 677 | { |
d62a17ae | 678 | struct listnode *cnode; |
679 | struct connected *connected; | |
680 | struct prefix *cp; | |
681 | ||
682 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
683 | cp = connected->address; | |
684 | ||
685 | if (cp->family == AF_INET6) | |
686 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
687 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
688 | return 1; | |
689 | } | |
690 | } | |
691 | return 0; | |
718e3744 | 692 | } |
693 | ||
d62a17ae | 694 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 695 | { |
d62a17ae | 696 | struct listnode *cnode; |
697 | struct connected *connected; | |
698 | struct prefix *cp; | |
699 | ||
700 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
701 | cp = connected->address; | |
702 | ||
703 | if (cp->family == AF_INET6) | |
704 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
705 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
706 | return 1; | |
707 | } | |
708 | } | |
709 | return 0; | |
718e3744 | 710 | } |
718e3744 | 711 | |
d62a17ae | 712 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 713 | { |
d62a17ae | 714 | struct listnode *cnode; |
715 | struct connected *connected; | |
716 | struct prefix *cp; | |
717 | ||
718 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
719 | cp = connected->address; | |
720 | if ((cp->family == AF_INET) | |
721 | && !ipv4_martian(&(cp->u.prefix4))) { | |
722 | *addr = cp->u.prefix4; | |
723 | return 1; | |
724 | } | |
725 | } | |
726 | return 0; | |
6ee06fa9 PM |
727 | } |
728 | ||
17cdd31e DS |
729 | |
730 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
731 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 732 | { |
d62a17ae | 733 | int ret = 0; |
734 | struct interface *ifp = NULL; | |
735 | ||
736 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
737 | ||
738 | if (!local) | |
17cdd31e | 739 | return false; |
d62a17ae | 740 | if (!remote) |
17cdd31e | 741 | return false; |
d62a17ae | 742 | |
743 | if (local->sa.sa_family == AF_INET) { | |
744 | nexthop->v4 = local->sin.sin_addr; | |
745 | if (peer->update_if) | |
746 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 747 | peer->bgp->vrf_id); |
d62a17ae | 748 | else |
749 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
750 | peer->bgp->vrf_id); | |
718e3744 | 751 | } |
d62a17ae | 752 | if (local->sa.sa_family == AF_INET6) { |
8f2b2139 | 753 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN); |
d62a17ae | 754 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { |
755 | if (peer->conf_if || peer->ifname) | |
756 | ifp = if_lookup_by_name(peer->conf_if | |
757 | ? peer->conf_if | |
758 | : peer->ifname, | |
a36898e7 | 759 | peer->bgp->vrf_id); |
d62a17ae | 760 | } else if (peer->update_if) |
761 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 762 | peer->bgp->vrf_id); |
d62a17ae | 763 | else |
764 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
765 | local->sin6.sin6_scope_id, | |
766 | peer->bgp->vrf_id); | |
718e3744 | 767 | } |
d62a17ae | 768 | |
17cdd31e DS |
769 | if (!ifp) { |
770 | /* | |
771 | * BGP views do not currently get proper data | |
772 | * from zebra( when attached ) to be able to | |
773 | * properly resolve nexthops, so give this | |
774 | * instance type a pass. | |
775 | */ | |
776 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
777 | return true; | |
778 | /* | |
779 | * If we have no interface data but we have established | |
780 | * some connection w/ zebra than something has gone | |
781 | * terribly terribly wrong here, so say this failed | |
782 | * If we do not any zebra connection then not | |
783 | * having a ifp pointer is ok. | |
784 | */ | |
785 | return zclient_num_connects ? false : true; | |
786 | } | |
d62a17ae | 787 | |
788 | nexthop->ifp = ifp; | |
789 | ||
790 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
791 | if (local->sa.sa_family == AF_INET) { | |
792 | /* IPv6 nexthop*/ | |
793 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
794 | ||
795 | if (!ret) { | |
796 | /* There is no global nexthop. Use link-local address as | |
797 | * both the | |
798 | * global and link-local nexthop. In this scenario, the | |
799 | * expectation | |
800 | * for interop is that the network admin would use a | |
801 | * route-map to | |
802 | * specify the global IPv6 nexthop. | |
803 | */ | |
804 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
805 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
806 | IPV6_MAX_BYTELEN); | |
807 | } else | |
808 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
809 | ||
810 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
811 | peer->shared_network = 1; | |
812 | else | |
813 | peer->shared_network = 0; | |
718e3744 | 814 | } |
718e3744 | 815 | |
d62a17ae | 816 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
817 | if (local->sa.sa_family == AF_INET6) { | |
818 | struct interface *direct = NULL; | |
819 | ||
820 | /* IPv4 nexthop. */ | |
821 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
822 | if (!ret && peer->local_id.s_addr) | |
823 | nexthop->v4 = peer->local_id; | |
824 | ||
825 | /* Global address*/ | |
826 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
827 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
828 | IPV6_MAX_BYTELEN); | |
829 | ||
830 | /* If directory connected set link-local address. */ | |
831 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
832 | remote->sin6.sin6_scope_id, | |
833 | peer->bgp->vrf_id); | |
834 | if (direct) | |
835 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
836 | } else | |
837 | /* Link-local address. */ | |
838 | { | |
839 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
840 | ||
841 | /* If there is no global address. Set link-local | |
842 | address as | |
843 | global. I know this break RFC specification... */ | |
844 | /* In this scenario, the expectation for interop is that | |
845 | * the | |
846 | * network admin would use a route-map to specify the | |
847 | * global | |
848 | * IPv6 nexthop. | |
849 | */ | |
850 | if (!ret) | |
851 | memcpy(&nexthop->v6_global, | |
852 | &local->sin6.sin6_addr, | |
853 | IPV6_MAX_BYTELEN); | |
854 | /* Always set the link-local address */ | |
855 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
856 | IPV6_MAX_BYTELEN); | |
857 | } | |
858 | ||
859 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
860 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
861 | remote->sin6.sin6_scope_id, | |
862 | peer->bgp->vrf_id)) | |
863 | peer->shared_network = 1; | |
864 | else | |
865 | peer->shared_network = 0; | |
866 | } | |
718e3744 | 867 | |
d62a17ae | 868 | /* KAME stack specific treatment. */ |
718e3744 | 869 | #ifdef KAME |
d62a17ae | 870 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
871 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
872 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
873 | } | |
874 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
875 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
876 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
877 | } | |
718e3744 | 878 | #endif /* KAME */ |
e33a4880 | 879 | |
d62a17ae | 880 | /* If we have identified the local interface, there is no error for now. |
881 | */ | |
17cdd31e | 882 | return true; |
718e3744 | 883 | } |
884 | ||
18ee8310 | 885 | static struct in6_addr * |
40381db7 | 886 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 887 | { |
d62a17ae | 888 | struct in6_addr *nexthop = NULL; |
889 | ||
890 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
891 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
892 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 893 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 894 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 895 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 896 | } |
d62a17ae | 897 | |
898 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
899 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
900 | || path->attr->mp_nexthop_len | |
901 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 902 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
903 | if (path->attr->mp_nexthop_prefer_global) { |
904 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 905 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 906 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 907 | } else { |
d62a17ae | 908 | /* Workaround for Cisco's nexthop bug. */ |
909 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 DS |
910 | &path->attr->mp_nexthop_global) |
911 | && path->peer->su_remote->sa.sa_family | |
59a0f1cb | 912 | == AF_INET6) { |
d62a17ae | 913 | nexthop = |
40381db7 | 914 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 915 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 916 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 917 | ->ifindex; |
77e62f2b | 918 | } else { |
40381db7 | 919 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 920 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 921 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 922 | } |
d62a17ae | 923 | } |
924 | } | |
925 | ||
926 | return nexthop; | |
73ac8160 DS |
927 | } |
928 | ||
d62a17ae | 929 | static int bgp_table_map_apply(struct route_map *map, struct prefix *p, |
40381db7 | 930 | struct bgp_path_info *path) |
73ac8160 | 931 | { |
b4cb15c6 DL |
932 | route_map_result_t ret; |
933 | ||
40381db7 DS |
934 | ret = route_map_apply(map, p, RMAP_BGP, path); |
935 | bgp_attr_flush(path->attr); | |
b4cb15c6 DL |
936 | |
937 | if (ret != RMAP_DENYMATCH) | |
d62a17ae | 938 | return 1; |
939 | ||
940 | if (bgp_debug_zebra(p)) { | |
941 | if (p->family == AF_INET) { | |
942 | char buf[2][INET_ADDRSTRLEN]; | |
943 | zlog_debug( | |
944 | "Zebra rmap deny: IPv4 route %s/%d nexthop %s", | |
945 | inet_ntop(AF_INET, &p->u.prefix4, buf[0], | |
946 | sizeof(buf[0])), | |
947 | p->prefixlen, | |
40381db7 | 948 | inet_ntop(AF_INET, &path->attr->nexthop, buf[1], |
d62a17ae | 949 | sizeof(buf[1]))); |
950 | } | |
951 | if (p->family == AF_INET6) { | |
952 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 953 | ifindex_t ifindex; |
954 | struct in6_addr *nexthop; | |
955 | ||
40381db7 | 956 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 957 | zlog_debug( |
958 | "Zebra rmap deny: IPv6 route %s/%d nexthop %s", | |
959 | inet_ntop(AF_INET6, &p->u.prefix6, buf[0], | |
960 | sizeof(buf[0])), | |
961 | p->prefixlen, | |
77e62f2b | 962 | inet_ntop(AF_INET6, nexthop, |
d62a17ae | 963 | buf[1], sizeof(buf[1]))); |
964 | } | |
965 | } | |
966 | return 0; | |
73ac8160 DS |
967 | } |
968 | ||
b98f7728 PG |
969 | static struct thread *bgp_tm_thread_connect; |
970 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
971 | static bool bgp_tm_chunk_obtained; |
972 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
973 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 974 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
975 | |
976 | static int bgp_zebra_tm_connect(struct thread *t) | |
977 | { | |
978 | struct zclient *zclient; | |
979 | int delay = 10, ret = 0; | |
980 | ||
981 | zclient = THREAD_ARG(t); | |
982 | if (bgp_tm_status_connected && zclient->sock > 0) | |
983 | delay = 60; | |
984 | else { | |
985 | bgp_tm_status_connected = false; | |
986 | ret = tm_table_manager_connect(zclient); | |
987 | } | |
988 | if (ret < 0) { | |
b7cd3069 | 989 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
990 | bgp_tm_status_connected = false; |
991 | } else { | |
992 | if (!bgp_tm_status_connected) | |
993 | zlog_debug("Connecting to table manager. Success"); | |
994 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
995 | if (!bgp_tm_chunk_obtained) { |
996 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
997 | &bgp_tm_min, | |
6818e7e5 | 998 | &bgp_tm_max) >= 0) { |
31c28cd7 | 999 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
1000 | /* parse non installed entries */ |
1001 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1002 | } | |
31c28cd7 | 1003 | } |
b98f7728 PG |
1004 | } |
1005 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1006 | &bgp_tm_thread_connect); | |
1007 | return 0; | |
1008 | } | |
1009 | ||
6818e7e5 PG |
1010 | bool bgp_zebra_tm_chunk_obtained(void) |
1011 | { | |
1012 | return bgp_tm_chunk_obtained; | |
1013 | } | |
1014 | ||
31c28cd7 PG |
1015 | uint32_t bgp_zebra_tm_get_id(void) |
1016 | { | |
1017 | static int table_id; | |
1018 | ||
1019 | if (!bgp_tm_chunk_obtained) | |
1020 | return ++table_id; | |
1021 | return bgp_tm_min++; | |
1022 | } | |
1023 | ||
6818e7e5 | 1024 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1025 | { |
1026 | int delay = 1; | |
1027 | ||
1028 | /* if already set, do nothing | |
1029 | */ | |
1030 | if (bgp_tm_thread_connect != NULL) | |
1031 | return; | |
1032 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1033 | bgp_tm_chunk_obtained = false; |
1034 | bgp_tm_min = bgp_tm_max = 0; | |
1035 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1036 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1037 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1038 | &bgp_tm_thread_connect); | |
1039 | } | |
1040 | ||
1041 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1042 | uint32_t *start, uint32_t *end) | |
1043 | { | |
1044 | int ret; | |
1045 | ||
1046 | if (!bgp_tm_status_connected) | |
1047 | return -1; | |
1048 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1049 | if (ret < 0) { | |
e50f7cfd | 1050 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1051 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1052 | return -1; |
1053 | } | |
1054 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1055 | chunk_size, *start, *end); | |
1056 | return 0; | |
1057 | } | |
1058 | ||
77e62f2b | 1059 | static int update_ipv4nh_for_route_install(int nh_othervrf, |
e1e71450 | 1060 | struct bgp *nh_bgp, |
77e62f2b | 1061 | struct in_addr *nexthop, |
1062 | struct attr *attr, | |
1063 | bool is_evpn, | |
1064 | struct zapi_nexthop *api_nh) | |
1065 | { | |
1066 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1067 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1068 | |
1069 | /* Need to set fields appropriately for EVPN routes imported into | |
1070 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1071 | * connected routes leaked into a VRF. | |
1072 | */ | |
e1e71450 | 1073 | if (is_evpn) { |
77e62f2b | 1074 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
2b83602b | 1075 | api_nh->onlink = true; |
e1e71450 | 1076 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1077 | } else if (nh_othervrf && | |
77e62f2b | 1078 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
1079 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1080 | api_nh->ifindex = attr->nh_ifindex; | |
1081 | } else | |
1082 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1083 | ||
1084 | return 1; | |
1085 | } | |
1086 | ||
4b7e6066 | 1087 | static int |
e1e71450 | 1088 | update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1089 | struct in6_addr *nexthop, | |
40381db7 DS |
1090 | ifindex_t ifindex, struct bgp_path_info *pi, |
1091 | struct bgp_path_info *best_pi, bool is_evpn, | |
4b7e6066 | 1092 | struct zapi_nexthop *api_nh) |
77e62f2b | 1093 | { |
1094 | struct attr *attr; | |
1095 | ||
40381db7 | 1096 | attr = pi->attr; |
e1e71450 | 1097 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1098 | |
e1e71450 | 1099 | if (is_evpn) { |
77e62f2b | 1100 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
2b83602b | 1101 | api_nh->onlink = true; |
e1e71450 | 1102 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1103 | } else if (nh_othervrf) { | |
77e62f2b | 1104 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1105 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1106 | api_nh->ifindex = attr->nh_ifindex; | |
1107 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1108 | if (ifindex == 0) | |
1109 | return 0; | |
1110 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1111 | api_nh->ifindex = ifindex; | |
1112 | } else { | |
1113 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1114 | api_nh->ifindex = 0; | |
1115 | } | |
1116 | } else { | |
1117 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1118 | if (pi == best_pi |
1119 | && attr->mp_nexthop_len | |
1120 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1121 | if (pi->peer->nexthop.ifp) | |
1122 | ifindex = | |
1123 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1124 | if (!ifindex) { |
40381db7 DS |
1125 | if (pi->peer->conf_if) |
1126 | ifindex = pi->peer->ifp->ifindex; | |
1127 | else if (pi->peer->ifname) | |
77e62f2b | 1128 | ifindex = ifname2ifindex( |
40381db7 DS |
1129 | pi->peer->ifname, |
1130 | pi->peer->bgp->vrf_id); | |
1131 | else if (pi->peer->nexthop.ifp) | |
1132 | ifindex = | |
1133 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1134 | } |
1135 | ||
1136 | if (ifindex == 0) | |
1137 | return 0; | |
1138 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
1139 | api_nh->ifindex = ifindex; | |
1140 | } else { | |
1141 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1142 | api_nh->ifindex = 0; | |
1143 | } | |
1144 | } | |
1145 | api_nh->gate.ipv6 = *nexthop; | |
1146 | ||
1147 | return 1; | |
1148 | } | |
1149 | ||
d62a17ae | 1150 | void bgp_zebra_announce(struct bgp_node *rn, struct prefix *p, |
4b7e6066 | 1151 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1152 | safi_t safi) |
718e3744 | 1153 | { |
9913029c RW |
1154 | struct zapi_route api; |
1155 | struct zapi_nexthop *api_nh; | |
2ad4f093 | 1156 | int nh_family; |
a74e593b | 1157 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1158 | int has_valid_label = 0; |
d7c0a89a | 1159 | uint8_t distance; |
d62a17ae | 1160 | struct peer *peer; |
4b7e6066 | 1161 | struct bgp_path_info *mpinfo; |
d7c0a89a | 1162 | uint32_t metric; |
b4cb15c6 | 1163 | struct attr local_attr; |
4b7e6066 DS |
1164 | struct bgp_path_info local_info; |
1165 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1166 | route_tag_t tag; |
1167 | mpls_label_t label; | |
ddb5b488 | 1168 | int nh_othervrf = 0; |
960035b2 | 1169 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1170 | bool is_evpn; |
77e62f2b | 1171 | int nh_updated; |
d62a17ae | 1172 | |
1173 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1174 | * know of this instance. | |
1175 | */ | |
1176 | if (!bgp_install_info_to_zebra(bgp)) | |
1177 | return; | |
1178 | ||
d62a17ae | 1179 | if (bgp->main_zebra_update_hold) |
1180 | return; | |
1181 | ||
960035b2 | 1182 | if (bgp_debug_zebra(p)) |
ba1976db | 1183 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1184 | |
d90b788e A |
1185 | if (safi == SAFI_FLOWSPEC) { |
1186 | bgp_pbr_update_entry(bgp, &rn->p, info, afi, safi, true); | |
1187 | return; | |
1188 | } | |
529efa23 | 1189 | |
ddb5b488 PZ |
1190 | /* |
1191 | * vrf leaking support (will have only one nexthop) | |
1192 | */ | |
1193 | if (info->extra && info->extra->bgp_orig) | |
1194 | nh_othervrf = 1; | |
1195 | ||
9913029c RW |
1196 | /* Make Zebra API structure. */ |
1197 | memset(&api, 0, sizeof(api)); | |
1198 | api.vrf_id = bgp->vrf_id; | |
1199 | api.type = ZEBRA_ROUTE_BGP; | |
1200 | api.safi = safi; | |
1201 | api.prefix = *p; | |
1202 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1203 | ||
d62a17ae | 1204 | peer = info->peer; |
1205 | ||
ddb5b488 PZ |
1206 | if (info->type == ZEBRA_ROUTE_BGP |
1207 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1208 | ||
1ec90b5e | 1209 | /* Obtain peer from parent */ |
1210 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1211 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1212 | ->peer; | |
ddb5b488 PZ |
1213 | } |
1214 | ||
d62a17ae | 1215 | tag = info->attr->tag; |
1216 | ||
88493076 | 1217 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1218 | is_evpn = is_route_parent_evpn(info); |
1219 | if (is_evpn) | |
90264d64 | 1220 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1221 | |
d62a17ae | 1222 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1223 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1224 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1225 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1226 | } |
a39275d7 | 1227 | |
c8d6f0d6 | 1228 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL) |
d62a17ae | 1229 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) |
1230 | || bgp_flag_check(bgp, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) | |
1231 | ||
4e8b02f4 | 1232 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1233 | |
951745bd PG |
1234 | if (info->attr->rmap_table_id) { |
1235 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1236 | api.tableid = info->attr->rmap_table_id; | |
1237 | } | |
1238 | ||
2ad4f093 RW |
1239 | /* Metric is currently based on the best-path only */ |
1240 | metric = info->attr->med; | |
18ee8310 | 1241 | for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { |
a74e593b RW |
1242 | if (valid_nh_count >= multipath_num) |
1243 | break; | |
1244 | ||
b4cb15c6 DL |
1245 | *mpinfo_cp = *mpinfo; |
1246 | ||
d0d695f4 RW |
1247 | /* Get nexthop address-family */ |
1248 | if (p->family == AF_INET | |
1249 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1250 | nh_family = AF_INET; | |
1251 | else if (p->family == AF_INET6 | |
1252 | || (p->family == AF_INET | |
1253 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1254 | nh_family = AF_INET6; | |
1255 | else | |
1256 | continue; | |
1257 | ||
1374aec9 | 1258 | api_nh = &api.nexthops[valid_nh_count]; |
2ad4f093 | 1259 | if (nh_family == AF_INET) { |
ddb5b488 | 1260 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1261 | if (mpinfo->extra) { |
1262 | zlog_debug( | |
1263 | "%s: p=%s, bgp_is_valid_label: %d", | |
1264 | __func__, buf_prefix, | |
1265 | bgp_is_valid_label( | |
1266 | &mpinfo->extra | |
1267 | ->label[0])); | |
1268 | } else { | |
1269 | zlog_debug( | |
1270 | "%s: p=%s, extra is NULL, no label", | |
1271 | __func__, buf_prefix); | |
1272 | } | |
1273 | } | |
1274 | ||
6c0a6053 | 1275 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 1276 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1277 | apply doesn't modify the BGP route info. */ |
1278 | local_attr = *mpinfo->attr; | |
1279 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 | 1280 | } |
b4cb15c6 | 1281 | |
ddb5b488 | 1282 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1283 | if (!bgp_table_map_apply( |
d62a17ae | 1284 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1285 | mpinfo_cp)) |
1286 | continue; | |
1287 | ||
1288 | /* metric/tag is only allowed to be | |
1289 | * overridden on 1st nexthop */ | |
1290 | if (mpinfo == info) { | |
1291 | metric = mpinfo_cp->attr->med; | |
1292 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1293 | } |
b4cb15c6 | 1294 | } |
d62a17ae | 1295 | |
77e62f2b | 1296 | nh_updated = update_ipv4nh_for_route_install( |
1297 | nh_othervrf, | |
e1e71450 | 1298 | nh_othervrf ? |
1299 | info->extra->bgp_orig : bgp, | |
77e62f2b | 1300 | &mpinfo_cp->attr->nexthop, |
1301 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1302 | } else { |
f220da99 | 1303 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1304 | struct in6_addr *nexthop; |
9913029c | 1305 | |
6c0a6053 | 1306 | if (bgp->table_map[afi][safi].name) { |
ddb5b488 PZ |
1307 | /* Copy info and attributes, so the route-map |
1308 | apply doesn't modify the BGP route info. */ | |
1309 | local_attr = *mpinfo->attr; | |
1310 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1311 | } |
1312 | ||
d62a17ae | 1313 | if (bgp->table_map[afi][safi].name) { |
1314 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1315 | apply doesn't modify the BGP route info. */ |
1316 | local_attr = *mpinfo->attr; | |
1317 | mpinfo_cp->attr = &local_attr; | |
1318 | ||
1319 | if (!bgp_table_map_apply( | |
d62a17ae | 1320 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1321 | mpinfo_cp)) |
1322 | continue; | |
1323 | ||
1324 | /* metric/tag is only allowed to be | |
1325 | * overridden on 1st nexthop */ | |
1326 | if (mpinfo == info) { | |
1327 | metric = mpinfo_cp->attr->med; | |
1328 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1329 | } |
b4cb15c6 | 1330 | } |
18ee8310 DS |
1331 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1332 | &ifindex); | |
77e62f2b | 1333 | nh_updated = update_ipv6nh_for_route_install( |
e1e71450 | 1334 | nh_othervrf, nh_othervrf ? |
1335 | info->extra->bgp_orig : bgp, | |
1336 | nexthop, ifindex, | |
77e62f2b | 1337 | mpinfo, info, is_evpn, api_nh); |
2ad4f093 | 1338 | } |
d62a17ae | 1339 | |
77e62f2b | 1340 | /* Did we get proper nexthop info to update zebra? */ |
1341 | if (!nh_updated) | |
1342 | continue; | |
1343 | ||
a4d82a8a PZ |
1344 | if (mpinfo->extra |
1345 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1346 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1347 | has_valid_label = 1; |
b57ba6d2 | 1348 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1349 | |
2ad4f093 RW |
1350 | api_nh->label_num = 1; |
1351 | api_nh->labels[0] = label; | |
d62a17ae | 1352 | } |
22e63104 | 1353 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1354 | sizeof(struct ethaddr)); | |
2ad4f093 RW |
1355 | valid_nh_count++; |
1356 | } | |
d62a17ae | 1357 | |
77e62f2b | 1358 | |
a89b49cc | 1359 | /* if this is a evpn route we don't have to include the label */ |
a4d82a8a | 1360 | if (has_valid_label && !(CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE))) |
2ad4f093 | 1361 | SET_FLAG(api.message, ZAPI_MESSAGE_LABEL); |
d62a17ae | 1362 | |
5cc347c4 DS |
1363 | /* |
1364 | * When we create an aggregate route we must also | |
1365 | * install a Null0 route in the RIB, so overwrite | |
1366 | * what was written into api with a blackhole route | |
1367 | */ | |
1368 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1369 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1370 | else | |
2ad4f093 | 1371 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1372 | |
2ad4f093 RW |
1373 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1374 | api.metric = metric; | |
d62a17ae | 1375 | |
2ad4f093 RW |
1376 | if (tag) { |
1377 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1378 | api.tag = tag; | |
1379 | } | |
d62a17ae | 1380 | |
2ad4f093 RW |
1381 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1382 | if (distance) { | |
1383 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1384 | api.distance = distance; | |
1385 | } | |
d62a17ae | 1386 | |
2ad4f093 RW |
1387 | if (bgp_debug_zebra(p)) { |
1388 | char prefix_buf[PREFIX_STRLEN]; | |
1389 | char nh_buf[INET6_ADDRSTRLEN]; | |
1390 | char label_buf[20]; | |
1391 | int i; | |
1392 | ||
1393 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1394 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1395 | " count %d", | |
1396 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1397 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1398 | for (i = 0; i < api.nexthop_num; i++) { | |
1399 | api_nh = &api.nexthops[i]; | |
1400 | ||
1ee069db CS |
1401 | switch (api_nh->type) { |
1402 | case NEXTHOP_TYPE_IFINDEX: | |
77e62f2b | 1403 | nh_buf[0] = '\0'; |
1ee069db CS |
1404 | break; |
1405 | case NEXTHOP_TYPE_IPV4: | |
1406 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1407 | nh_family = AF_INET; | |
77e62f2b | 1408 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1409 | sizeof(nh_buf)); | |
1ee069db CS |
1410 | break; |
1411 | case NEXTHOP_TYPE_IPV6: | |
1412 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1413 | nh_family = AF_INET6; | |
1414 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1415 | sizeof(nh_buf)); | |
1416 | break; | |
1417 | case NEXTHOP_TYPE_BLACKHOLE: | |
1418 | strlcpy(nh_buf, "blackhole", sizeof(nh_buf)); | |
1419 | break; | |
1420 | default: | |
1421 | /* Note: add new nexthop case */ | |
1422 | assert(0); | |
1423 | break; | |
77e62f2b | 1424 | } |
2ad4f093 RW |
1425 | |
1426 | label_buf[0] = '\0'; | |
a4d82a8a PZ |
1427 | if (has_valid_label |
1428 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
2ad4f093 RW |
1429 | sprintf(label_buf, "label %u", |
1430 | api_nh->labels[0]); | |
77e62f2b | 1431 | zlog_debug(" nhop [%d]: %s if %u VRF %u %s", |
1432 | i + 1, nh_buf, api_nh->ifindex, | |
1433 | api_nh->vrf_id, label_buf); | |
d62a17ae | 1434 | } |
1435 | } | |
2ad4f093 | 1436 | |
960035b2 PZ |
1437 | if (bgp_debug_zebra(p)) { |
1438 | int recursion_flag = 0; | |
1439 | ||
1440 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1441 | recursion_flag = 1; | |
1442 | ||
1443 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1444 | __func__, buf_prefix, | |
1445 | (recursion_flag ? "" : "NOT ")); | |
1446 | } | |
2ad4f093 RW |
1447 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD |
1448 | : ZEBRA_ROUTE_DELETE, | |
1449 | zclient, &api); | |
718e3744 | 1450 | } |
1451 | ||
73ac8160 | 1452 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1453 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1454 | { |
d62a17ae | 1455 | struct bgp_node *rn; |
1456 | struct bgp_table *table; | |
40381db7 | 1457 | struct bgp_path_info *pi; |
d62a17ae | 1458 | |
1459 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1460 | * know of this instance. | |
1461 | */ | |
1462 | if (!bgp_install_info_to_zebra(bgp)) | |
1463 | return; | |
1464 | ||
1465 | table = bgp->rib[afi][safi]; | |
1466 | if (!table) | |
1467 | return; | |
1468 | ||
1469 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) | |
6f94b685 | 1470 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) |
40381db7 | 1471 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1472 | |
40381db7 DS |
1473 | (pi->type == ZEBRA_ROUTE_BGP |
1474 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1475 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1476 | |
40381db7 | 1477 | bgp_zebra_announce(rn, &rn->p, pi, bgp, afi, |
d62a17ae | 1478 | safi); |
73ac8160 DS |
1479 | } |
1480 | ||
4b7e6066 | 1481 | void bgp_zebra_withdraw(struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1482 | struct bgp *bgp, safi_t safi) |
718e3744 | 1483 | { |
2ad4f093 | 1484 | struct zapi_route api; |
f7df1907 | 1485 | struct peer *peer; |
ddb5b488 | 1486 | |
d62a17ae | 1487 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1488 | * know of this instance. | |
1489 | */ | |
568e10ca | 1490 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1491 | return; |
1492 | ||
f7df1907 PG |
1493 | if (safi == SAFI_FLOWSPEC) { |
1494 | peer = info->peer; | |
d90b788e A |
1495 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1496 | return; | |
f7df1907 | 1497 | } |
529efa23 | 1498 | |
2ad4f093 | 1499 | memset(&api, 0, sizeof(api)); |
568e10ca | 1500 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1501 | api.type = ZEBRA_ROUTE_BGP; |
1502 | api.safi = safi; | |
1503 | api.prefix = *p; | |
d62a17ae | 1504 | |
1276ce38 PG |
1505 | if (info->attr->rmap_table_id) { |
1506 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1507 | api.tableid = info->attr->rmap_table_id; | |
1508 | } | |
1509 | ||
88493076 | 1510 | /* If the route's source is EVPN, flag as such. */ |
1511 | if (is_route_parent_evpn(info)) | |
90264d64 | 1512 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1513 | |
2ad4f093 RW |
1514 | if (bgp_debug_zebra(p)) { |
1515 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1516 | |
2ad4f093 | 1517 | prefix2str(&api.prefix, buf, sizeof(buf)); |
568e10ca | 1518 | zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf); |
d62a17ae | 1519 | } |
d62a17ae | 1520 | |
2ad4f093 | 1521 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1522 | } |
56c1f7d8 | 1523 | |
d7c0a89a QY |
1524 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1525 | unsigned short instance) | |
7c8ff89e | 1526 | { |
d62a17ae | 1527 | struct list *red_list; |
1528 | struct listnode *node; | |
1529 | struct bgp_redist *red; | |
7c8ff89e | 1530 | |
d62a17ae | 1531 | red_list = bgp->redist[afi][type]; |
1532 | if (!red_list) | |
1533 | return (NULL); | |
7c8ff89e | 1534 | |
d62a17ae | 1535 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1536 | if (red->instance == instance) | |
1537 | return red; | |
7c8ff89e | 1538 | |
d62a17ae | 1539 | return NULL; |
7c8ff89e DS |
1540 | } |
1541 | ||
d7c0a89a QY |
1542 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1543 | unsigned short instance) | |
7c8ff89e | 1544 | { |
d62a17ae | 1545 | struct list *red_list; |
1546 | struct bgp_redist *red; | |
7c8ff89e | 1547 | |
d62a17ae | 1548 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1549 | if (red) | |
1550 | return red; | |
7c8ff89e | 1551 | |
d62a17ae | 1552 | if (!bgp->redist[afi][type]) |
1553 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1554 | |
d62a17ae | 1555 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1556 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1557 | red->instance = instance; |
7c8ff89e | 1558 | |
d62a17ae | 1559 | listnode_add(red_list, red); |
7c8ff89e | 1560 | |
d62a17ae | 1561 | return red; |
7c8ff89e DS |
1562 | } |
1563 | ||
d7c0a89a QY |
1564 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1565 | unsigned short instance) | |
7c8ff89e | 1566 | { |
d62a17ae | 1567 | struct bgp_redist *red; |
1568 | ||
1569 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1570 | ||
1571 | if (red) { | |
1572 | listnode_delete(bgp->redist[afi][type], red); | |
1573 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1574 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1575 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1576 | } |
7c8ff89e | 1577 | } |
6b0655a2 | 1578 | |
718e3744 | 1579 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1580 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1581 | unsigned short instance, bool changed) |
718e3744 | 1582 | { |
e923dd62 | 1583 | /* If redistribute options are changed call |
1584 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1585 | * the routes | |
1586 | */ | |
1587 | if (changed) | |
1588 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1589 | |
d62a17ae | 1590 | /* Return if already redistribute flag is set. */ |
1591 | if (instance) { | |
1592 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1593 | instance)) | |
1594 | return CMD_WARNING; | |
718e3744 | 1595 | |
d62a17ae | 1596 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1597 | } else { | |
1598 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1599 | return CMD_WARNING; | |
7076bb2f | 1600 | |
65efcfce | 1601 | #if ENABLE_BGP_VNC |
f920dd6d | 1602 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1603 | vnc_export_bgp_enable( |
1604 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1605 | } | |
65efcfce LB |
1606 | #endif |
1607 | ||
d62a17ae | 1608 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1609 | } | |
718e3744 | 1610 | |
ea12cf11 DS |
1611 | /* |
1612 | * Don't try to register if we're not connected to Zebra or Zebra | |
1613 | * doesn't know of this instance. | |
1614 | * | |
1615 | * When we come up later well resend if needed. | |
d62a17ae | 1616 | */ |
1617 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1618 | return CMD_SUCCESS; |
a39275d7 | 1619 | |
d62a17ae | 1620 | if (BGP_DEBUG(zebra, ZEBRA)) |
1621 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1622 | bgp->vrf_id, afi, zebra_route_string(type), | |
1623 | instance); | |
518f0eb1 | 1624 | |
d62a17ae | 1625 | /* Send distribute add message to zebra. */ |
1626 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1627 | instance, bgp->vrf_id); | |
718e3744 | 1628 | |
d62a17ae | 1629 | return CMD_SUCCESS; |
718e3744 | 1630 | } |
1631 | ||
d62a17ae | 1632 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1633 | unsigned short instance) |
518f0eb1 | 1634 | { |
d62a17ae | 1635 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1636 | * know of this instance. | |
1637 | */ | |
1638 | if (!bgp_install_info_to_zebra(bgp)) | |
1639 | return -1; | |
1640 | ||
1641 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1642 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1643 | bgp->vrf_id, afi, zebra_route_string(type), | |
1644 | instance); | |
1645 | ||
1646 | /* Send distribute add message to zebra. */ | |
1647 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1648 | instance, bgp->vrf_id); | |
1649 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1650 | instance, bgp->vrf_id); | |
1651 | ||
1652 | return 0; | |
518f0eb1 DS |
1653 | } |
1654 | ||
718e3744 | 1655 | /* Redistribute with route-map specification. */ |
1de27621 DA |
1656 | int bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1657 | struct route_map *route_map) | |
718e3744 | 1658 | { |
d62a17ae | 1659 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
1660 | return 0; | |
718e3744 | 1661 | |
0a22ddfb | 1662 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1663 | /* Decrement the count for existing routemap and |
1664 | * increment the count for new route map. | |
1665 | */ | |
1666 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1667 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1668 | red->rmap.map = route_map; |
b4897fa5 | 1669 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1670 | |
d62a17ae | 1671 | return 1; |
718e3744 | 1672 | } |
1673 | ||
1674 | /* Redistribute with metric specification. */ | |
d62a17ae | 1675 | int bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
d7c0a89a | 1676 | afi_t afi, int type, uint32_t metric) |
718e3744 | 1677 | { |
d62a17ae | 1678 | struct bgp_node *rn; |
40381db7 | 1679 | struct bgp_path_info *pi; |
d62a17ae | 1680 | |
1681 | if (red->redist_metric_flag && red->redist_metric == metric) | |
1682 | return 0; | |
1683 | ||
1684 | red->redist_metric_flag = 1; | |
1685 | red->redist_metric = metric; | |
1686 | ||
1687 | for (rn = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); rn; | |
1688 | rn = bgp_route_next(rn)) { | |
6f94b685 | 1689 | for (pi = bgp_node_get_bgp_path_info(rn); pi; pi = pi->next) { |
40381db7 DS |
1690 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1691 | && pi->type == type | |
1692 | && pi->instance == red->instance) { | |
d62a17ae | 1693 | struct attr *old_attr; |
1694 | struct attr new_attr; | |
1695 | ||
40381db7 | 1696 | bgp_attr_dup(&new_attr, pi->attr); |
d62a17ae | 1697 | new_attr.med = red->redist_metric; |
40381db7 DS |
1698 | old_attr = pi->attr; |
1699 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1700 | bgp_attr_unintern(&old_attr); |
1701 | ||
40381db7 | 1702 | bgp_path_info_set_flag(rn, pi, |
18ee8310 | 1703 | BGP_PATH_ATTR_CHANGED); |
d62a17ae | 1704 | bgp_process(bgp, rn, afi, SAFI_UNICAST); |
1705 | } | |
1706 | } | |
1707 | } | |
1708 | ||
1709 | return 1; | |
718e3744 | 1710 | } |
1711 | ||
1712 | /* Unset redistribution. */ | |
d62a17ae | 1713 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1714 | unsigned short instance) |
718e3744 | 1715 | { |
d62a17ae | 1716 | struct bgp_redist *red; |
1717 | ||
1718 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1719 | if (!red) | |
1720 | return CMD_SUCCESS; | |
1721 | ||
1722 | /* Return if zebra connection is disabled. */ | |
1723 | if (instance) { | |
1724 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1725 | instance)) | |
1726 | return CMD_WARNING; | |
1727 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1728 | } else { | |
1729 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1730 | return CMD_WARNING; | |
1731 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1732 | } | |
718e3744 | 1733 | |
65efcfce | 1734 | |
d62a17ae | 1735 | if (bgp_install_info_to_zebra(bgp)) { |
1736 | /* Send distribute delete message to zebra. */ | |
1737 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1738 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1739 | bgp->vrf_id, afi, zebra_route_string(type), | |
1740 | instance); | |
1741 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1742 | type, instance, bgp->vrf_id); | |
1743 | } | |
1744 | ||
1745 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1746 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1747 | ||
1748 | return CMD_SUCCESS; | |
718e3744 | 1749 | } |
1750 | ||
6aeb9e78 | 1751 | /* Unset redistribution. */ |
d62a17ae | 1752 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1753 | unsigned short instance) |
6aeb9e78 | 1754 | { |
d62a17ae | 1755 | struct bgp_redist *red; |
6aeb9e78 | 1756 | |
ddb5b488 PZ |
1757 | /* |
1758 | * vnc and vpn->vrf checks must be before red check because | |
1759 | * they operate within bgpd irrespective of zebra connection | |
1760 | * status. red lookup fails if there is no zebra connection. | |
1761 | */ | |
1762 | #if ENABLE_BGP_VNC | |
f920dd6d | 1763 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
1764 | vnc_export_bgp_disable(bgp, afi); |
1765 | } | |
1766 | #endif | |
ddb5b488 | 1767 | |
d62a17ae | 1768 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1769 | if (!red) | |
1770 | return CMD_SUCCESS; | |
6aeb9e78 | 1771 | |
d62a17ae | 1772 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1773 | |
d62a17ae | 1774 | /* Unset route-map. */ |
0a22ddfb | 1775 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1776 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 1777 | red->rmap.name = NULL; |
1778 | red->rmap.map = NULL; | |
6aeb9e78 | 1779 | |
d62a17ae | 1780 | /* Unset metric. */ |
1781 | red->redist_metric_flag = 0; | |
1782 | red->redist_metric = 0; | |
6aeb9e78 | 1783 | |
d62a17ae | 1784 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1785 | |
d62a17ae | 1786 | return CMD_SUCCESS; |
6aeb9e78 DS |
1787 | } |
1788 | ||
fc2408ec DS |
1789 | void bgp_redistribute_redo(struct bgp *bgp) |
1790 | { | |
1791 | afi_t afi; | |
1792 | int i; | |
1793 | struct list *red_list; | |
1794 | struct listnode *node; | |
1795 | struct bgp_redist *red; | |
1796 | ||
1797 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
1798 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
1799 | ||
1800 | red_list = bgp->redist[afi][i]; | |
1801 | if (!red_list) | |
1802 | continue; | |
1803 | ||
1804 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1805 | bgp_redistribute_resend(bgp, afi, i, | |
1806 | red->instance); | |
1807 | } | |
1808 | } | |
1809 | } | |
1810 | } | |
1811 | ||
401d56cc DS |
1812 | /* Unset redistribute vrf bitmap during triggers like |
1813 | restart networking or delete VRFs */ | |
1814 | void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) | |
eb117f29 | 1815 | { |
d62a17ae | 1816 | int i; |
1817 | afi_t afi; | |
1818 | ||
1819 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1820 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
7e20406f | 1821 | if (vrf_bitmap_check(zclient->redist[afi][i], |
401d56cc | 1822 | old_vrf_id)) |
d62a17ae | 1823 | vrf_bitmap_unset(zclient->redist[afi][i], |
1824 | old_vrf_id); | |
d62a17ae | 1825 | return; |
eb117f29 SK |
1826 | } |
1827 | ||
d62a17ae | 1828 | void bgp_zclient_reset(void) |
718e3744 | 1829 | { |
d62a17ae | 1830 | zclient_reset(zclient); |
718e3744 | 1831 | } |
1832 | ||
ad4cbda1 | 1833 | /* Register this instance with Zebra. Invoked upon connect (for |
1834 | * default instance) and when other VRFs are learnt (or created and | |
1835 | * already learnt). | |
1836 | */ | |
d62a17ae | 1837 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1838 | { |
d62a17ae | 1839 | /* Don't try to register if we're not connected to Zebra */ |
1840 | if (!zclient || zclient->sock < 0) | |
1841 | return; | |
ad4cbda1 | 1842 | |
d62a17ae | 1843 | if (BGP_DEBUG(zebra, ZEBRA)) |
1844 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1845 | |
d62a17ae | 1846 | /* Register for router-id, interfaces, redistributed routes. */ |
1847 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1848 | |
e2f3a930 T |
1849 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
1850 | if (bgp->advertise_all_vni) | |
d62a17ae | 1851 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
1852 | |
1853 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 1854 | } |
1855 | ||
1856 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1857 | * being deleted (default or VRF) and it is already registered. | |
1858 | */ | |
d62a17ae | 1859 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1860 | { |
d62a17ae | 1861 | /* Don't try to deregister if we're not connected to Zebra */ |
1862 | if (zclient->sock < 0) | |
1863 | return; | |
ad4cbda1 | 1864 | |
d62a17ae | 1865 | if (BGP_DEBUG(zebra, ZEBRA)) |
1866 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1867 | |
e2f3a930 T |
1868 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
1869 | if (bgp->advertise_all_vni) | |
d62a17ae | 1870 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1871 | |
d62a17ae | 1872 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1873 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1874 | } |
1875 | ||
d62a17ae | 1876 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1877 | { |
d62a17ae | 1878 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1879 | |
d62a17ae | 1880 | /* Don't try to initiate if we're not connected to Zebra */ |
1881 | if (zclient->sock < 0) | |
1882 | return; | |
4a04e5f7 | 1883 | |
d62a17ae | 1884 | if (BGP_DEBUG(zebra, ZEBRA)) |
1885 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1886 | peer->host); | |
4a04e5f7 | 1887 | |
d62a17ae | 1888 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 1, |
1889 | ra_interval); | |
4a04e5f7 | 1890 | } |
1891 | ||
d62a17ae | 1892 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1893 | { |
d62a17ae | 1894 | /* Don't try to terminate if we're not connected to Zebra */ |
1895 | if (zclient->sock < 0) | |
1896 | return; | |
4a04e5f7 | 1897 | |
d62a17ae | 1898 | if (BGP_DEBUG(zebra, ZEBRA)) |
1899 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
1900 | peer->host); | |
4a04e5f7 | 1901 | |
d62a17ae | 1902 | zclient_send_interface_radv_req(zclient, bgp->vrf_id, peer->ifp, 0, 0); |
4a04e5f7 | 1903 | } |
1904 | ||
31310b25 MK |
1905 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
1906 | { | |
1907 | struct stream *s = NULL; | |
1908 | ||
1909 | /* Check socket. */ | |
1910 | if (!zclient || zclient->sock < 0) | |
1911 | return 0; | |
1912 | ||
1913 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1914 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1915 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1916 | zlog_debug("%s: No zebra instance to talk to, cannot advertise subnet", | |
1917 | __PRETTY_FUNCTION__); | |
31310b25 | 1918 | return 0; |
bb4ef1ae | 1919 | } |
31310b25 MK |
1920 | |
1921 | s = zclient->obuf; | |
1922 | stream_reset(s); | |
1923 | ||
1924 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
1925 | stream_putc(s, advertise); | |
1926 | stream_put3(s, vni); | |
1927 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1928 | ||
1929 | return zclient_send_message(zclient); | |
1930 | } | |
1931 | ||
a8016157 CS |
1932 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
1933 | { | |
1934 | struct stream *s = NULL; | |
1935 | ||
1936 | /* Check socket. */ | |
1937 | if (!zclient || zclient->sock < 0) | |
1938 | return 0; | |
1939 | ||
1940 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
1941 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
1942 | return 0; | |
1943 | ||
1944 | s = zclient->obuf; | |
1945 | stream_reset(s); | |
1946 | ||
1947 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
1948 | stream_putc(s, advertise); | |
1949 | stream_putl(s, vni); | |
1950 | stream_putw_at(s, 0, stream_get_endp(s)); | |
1951 | ||
1952 | return zclient_send_message(zclient); | |
1953 | } | |
1954 | ||
1a98c087 MK |
1955 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
1956 | { | |
1957 | struct stream *s = NULL; | |
1958 | ||
1959 | /* Check socket. */ | |
1960 | if (!zclient || zclient->sock < 0) | |
1961 | return 0; | |
1962 | ||
1963 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1964 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1965 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1966 | zlog_debug("%s: No zebra instance to talk to, not installing gw_macip", | |
1967 | __PRETTY_FUNCTION__); | |
1a98c087 | 1968 | return 0; |
bb4ef1ae | 1969 | } |
1a98c087 MK |
1970 | |
1971 | s = zclient->obuf; | |
1972 | stream_reset(s); | |
1973 | ||
1974 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
1975 | stream_putc(s, advertise); | |
cc6d5476 | 1976 | stream_putl(s, vni); |
1a98c087 MK |
1977 | stream_putw_at(s, 0, stream_get_endp(s)); |
1978 | ||
1979 | return zclient_send_message(zclient); | |
1980 | } | |
1981 | ||
fd069644 DS |
1982 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
1983 | enum vxlan_flood_control flood_ctrl) | |
1984 | { | |
1985 | struct stream *s; | |
1986 | ||
1987 | /* Check socket. */ | |
1988 | if (!zclient || zclient->sock < 0) | |
1989 | return 0; | |
1990 | ||
1991 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
1992 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
1993 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1994 | zlog_debug("%s: No zebra instance to talk to, not installing all vni", | |
1995 | __PRETTY_FUNCTION__); | |
fd069644 | 1996 | return 0; |
bb4ef1ae | 1997 | } |
fd069644 DS |
1998 | |
1999 | s = zclient->obuf; | |
2000 | stream_reset(s); | |
2001 | ||
2002 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2003 | stream_putc(s, flood_ctrl); | |
2004 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2005 | ||
2006 | return zclient_send_message(zclient); | |
2007 | } | |
2008 | ||
d62a17ae | 2009 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2010 | { |
d62a17ae | 2011 | struct stream *s; |
7724c0a1 | 2012 | |
d62a17ae | 2013 | /* Check socket. */ |
2014 | if (!zclient || zclient->sock < 0) | |
2015 | return 0; | |
7724c0a1 | 2016 | |
d62a17ae | 2017 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2018 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2019 | return 0; | |
7724c0a1 | 2020 | |
d62a17ae | 2021 | s = zclient->obuf; |
2022 | stream_reset(s); | |
7724c0a1 | 2023 | |
d62a17ae | 2024 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2025 | stream_putc(s, advertise); | |
fbac9605 DS |
2026 | /* Also inform current BUM handling setting. This is really |
2027 | * relevant only when 'advertise' is set. | |
2028 | */ | |
fd069644 | 2029 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2030 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2031 | |
d62a17ae | 2032 | return zclient_send_message(zclient); |
7724c0a1 | 2033 | } |
2034 | ||
0b9d9cd0 CS |
2035 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2036 | { | |
2037 | struct stream *s; | |
2038 | ||
2039 | /* Check socket. */ | |
2040 | if (!zclient || zclient->sock < 0) | |
2041 | return 0; | |
2042 | ||
2043 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2044 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2045 | return 0; | |
2046 | ||
2047 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2048 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2049 | bgp->evpn_info->dup_addr_detect ? | |
2050 | "enable" : "disable", | |
2051 | bgp->evpn_info->dad_max_moves, | |
2052 | bgp->evpn_info->dad_time, | |
2053 | bgp->evpn_info->dad_freeze ? | |
2054 | "enable" : "disable", | |
2055 | bgp->evpn_info->dad_freeze_time); | |
2056 | ||
2057 | s = zclient->obuf; | |
2058 | stream_reset(s); | |
2059 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2060 | bgp->vrf_id); | |
2061 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2062 | stream_putl(s, bgp->evpn_info->dad_time); | |
2063 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2064 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2065 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2066 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2067 | ||
2068 | return zclient_send_message(zclient); | |
2069 | } | |
2070 | ||
121f9dee | 2071 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2072 | { |
2073 | uint32_t seqno, priority, unique; | |
2074 | enum zapi_rule_notify_owner note; | |
2075 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2076 | struct bgp_pbr_rule *bgp_pbr = NULL; |
30d50e6d PG |
2077 | ifindex_t ifi; |
2078 | ||
2079 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
2080 | &ifi, ¬e)) | |
2081 | return -1; | |
2082 | ||
70eabd12 | 2083 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2084 | if (!bgp_pbra) { |
ffee150e PG |
2085 | /* look in bgp pbr rule */ |
2086 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2087 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2088 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2089 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
2090 | __PRETTY_FUNCTION__, unique); | |
2091 | return 0; | |
2092 | } | |
30d50e6d PG |
2093 | } |
2094 | ||
2095 | switch (note) { | |
2096 | case ZAPI_RULE_FAIL_INSTALL: | |
2097 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2098 | zlog_debug("%s: Received RULE_FAIL_INSTALL", | |
2099 | __PRETTY_FUNCTION__); | |
ffee150e PG |
2100 | if (bgp_pbra) { |
2101 | bgp_pbra->installed = false; | |
2102 | bgp_pbra->install_in_progress = false; | |
2103 | } else { | |
2104 | bgp_pbr->installed = false; | |
2105 | bgp_pbr->install_in_progress = false; | |
2106 | } | |
30d50e6d PG |
2107 | break; |
2108 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2109 | if (bgp_pbra) { |
2110 | bgp_pbra->installed = true; | |
2111 | bgp_pbra->install_in_progress = false; | |
2112 | } else { | |
ce3c0614 PG |
2113 | struct bgp_path_info *path; |
2114 | struct bgp_path_info_extra *extra; | |
2115 | ||
ffee150e PG |
2116 | bgp_pbr->installed = true; |
2117 | bgp_pbr->install_in_progress = false; | |
2118 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2119 | /* link bgp_info to bgp_pbr */ |
2120 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2121 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2122 | listnode_add_force(&extra->bgp_fs_iprule, |
2123 | bgp_pbr); | |
ffee150e | 2124 | } |
30d50e6d PG |
2125 | if (BGP_DEBUG(zebra, ZEBRA)) |
2126 | zlog_debug("%s: Received RULE_INSTALLED", | |
2127 | __PRETTY_FUNCTION__); | |
2128 | break; | |
f18a08f5 | 2129 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2130 | case ZAPI_RULE_REMOVED: |
2131 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2132 | zlog_debug("%s: Received RULE REMOVED", | |
2133 | __PRETTY_FUNCTION__); | |
2134 | break; | |
2135 | } | |
2136 | ||
2137 | return 0; | |
2138 | } | |
2139 | ||
121f9dee | 2140 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2141 | { |
2142 | uint32_t unique; | |
2143 | enum zapi_ipset_notify_owner note; | |
2144 | struct bgp_pbr_match *bgp_pbim; | |
2145 | ||
2146 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2147 | &unique, | |
2148 | ¬e)) | |
2149 | return -1; | |
2150 | ||
2151 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2152 | if (!bgp_pbim) { | |
2153 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2154 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
82e194ed | 2155 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2156 | return 0; |
2157 | } | |
2158 | ||
2159 | switch (note) { | |
2160 | case ZAPI_IPSET_FAIL_INSTALL: | |
2161 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2162 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", | |
2163 | __PRETTY_FUNCTION__); | |
2164 | bgp_pbim->installed = false; | |
2165 | bgp_pbim->install_in_progress = false; | |
2166 | break; | |
2167 | case ZAPI_IPSET_INSTALLED: | |
2168 | bgp_pbim->installed = true; | |
2169 | bgp_pbim->install_in_progress = false; | |
2170 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2171 | zlog_debug("%s: Received IPSET_INSTALLED", | |
2172 | __PRETTY_FUNCTION__); | |
2173 | break; | |
f18a08f5 | 2174 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2175 | case ZAPI_IPSET_REMOVED: |
2176 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2177 | zlog_debug("%s: Received IPSET REMOVED", | |
2178 | __PRETTY_FUNCTION__); | |
2179 | break; | |
2180 | } | |
2181 | ||
2182 | return 0; | |
2183 | } | |
2184 | ||
121f9dee | 2185 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2186 | { |
2187 | uint32_t unique; | |
2188 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2189 | enum zapi_ipset_entry_notify_owner note; | |
2190 | struct bgp_pbr_match_entry *bgp_pbime; | |
2191 | ||
2192 | if (!zapi_ipset_entry_notify_decode( | |
2193 | zclient->ibuf, | |
2194 | &unique, | |
2195 | ipset_name, | |
2196 | ¬e)) | |
2197 | return -1; | |
2198 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2199 | ipset_name, | |
2200 | unique); | |
2201 | if (!bgp_pbime) { | |
2202 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2203 | zlog_debug("%s: Fail to look BGP match entry (%u, ID %u)", |
82e194ed | 2204 | __PRETTY_FUNCTION__, note, unique); |
30d50e6d PG |
2205 | return 0; |
2206 | } | |
2207 | ||
2208 | switch (note) { | |
2209 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2210 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2211 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
2212 | __PRETTY_FUNCTION__); | |
2213 | bgp_pbime->installed = false; | |
2214 | bgp_pbime->install_in_progress = false; | |
2215 | break; | |
2216 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2217 | { |
9b6d8fcf | 2218 | struct bgp_path_info *path; |
4b7e6066 DS |
2219 | struct bgp_path_info_extra *extra; |
2220 | ||
2221 | bgp_pbime->installed = true; | |
2222 | bgp_pbime->install_in_progress = false; | |
2223 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2224 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
2225 | __PRETTY_FUNCTION__); | |
9b6d8fcf DS |
2226 | /* link bgp_path_info to bpme */ |
2227 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2228 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2229 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2230 | } |
30d50e6d | 2231 | break; |
f18a08f5 | 2232 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2233 | case ZAPI_IPSET_ENTRY_REMOVED: |
2234 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2235 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
2236 | __PRETTY_FUNCTION__); | |
2237 | break; | |
2238 | } | |
2239 | return 0; | |
2240 | } | |
2241 | ||
121f9dee | 2242 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2243 | { |
2244 | uint32_t unique; | |
2245 | enum zapi_iptable_notify_owner note; | |
2246 | struct bgp_pbr_match *bgpm; | |
2247 | ||
2248 | if (!zapi_iptable_notify_decode( | |
2249 | zclient->ibuf, | |
2250 | &unique, | |
2251 | ¬e)) | |
2252 | return -1; | |
2253 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2254 | if (!bgpm) { | |
2255 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed PG |
2256 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
2257 | __PRETTY_FUNCTION__, note, unique); | |
c16a0a62 PG |
2258 | return 0; |
2259 | } | |
2260 | switch (note) { | |
2261 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2262 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2263 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
2264 | __PRETTY_FUNCTION__); | |
2265 | bgpm->installed_in_iptable = false; | |
2266 | bgpm->install_iptable_in_progress = false; | |
2267 | break; | |
2268 | case ZAPI_IPTABLE_INSTALLED: | |
2269 | bgpm->installed_in_iptable = true; | |
2270 | bgpm->install_iptable_in_progress = false; | |
2271 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2272 | zlog_debug("%s: Received IPTABLE_INSTALLED", | |
2273 | __PRETTY_FUNCTION__); | |
a6b07429 | 2274 | bgpm->action->refcnt++; |
c16a0a62 | 2275 | break; |
f18a08f5 | 2276 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2277 | case ZAPI_IPTABLE_REMOVED: |
2278 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2279 | zlog_debug("%s: Received IPTABLE REMOVED", | |
2280 | __PRETTY_FUNCTION__); | |
2281 | break; | |
2282 | } | |
2283 | return 0; | |
2284 | } | |
2285 | ||
6cfe5d15 PG |
2286 | /* this function is used to forge ip rule, |
2287 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2288 | * - or for sample ip rule cmd |
6cfe5d15 | 2289 | */ |
30d50e6d | 2290 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2291 | struct bgp_pbr_action *pbra, |
2292 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2293 | { |
6cfe5d15 | 2294 | struct prefix pfx; |
30d50e6d PG |
2295 | |
2296 | stream_putl(s, 0); /* seqno unused */ | |
8112a7a0 PG |
2297 | if (pbr) |
2298 | stream_putl(s, pbr->priority); | |
2299 | else | |
2300 | stream_putl(s, 0); | |
2301 | /* ruleno unused - priority change | |
2302 | * ruleno permits distinguishing various FS PBR entries | |
2303 | * - FS PBR entries based on ipset/iptables | |
2304 | * - FS PBR entries based on iprule | |
2305 | * the latter may contain default routing information injected by FS | |
2306 | */ | |
6cfe5d15 PG |
2307 | if (pbr) |
2308 | stream_putl(s, pbr->unique); | |
2309 | else | |
2310 | stream_putl(s, pbra->unique); | |
2311 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) | |
2312 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2313 | else { | |
2314 | memset(&pfx, 0, sizeof(pfx)); | |
2315 | pfx.family = AF_INET; | |
2316 | } | |
2317 | stream_putc(s, pfx.family); | |
2318 | stream_putc(s, pfx.prefixlen); | |
2319 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2320 | |
2321 | stream_putw(s, 0); /* src port */ | |
2322 | ||
6cfe5d15 PG |
2323 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2324 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2325 | else { | |
2326 | memset(&pfx, 0, sizeof(pfx)); | |
2327 | pfx.family = AF_INET; | |
2328 | } | |
2329 | stream_putc(s, pfx.family); | |
2330 | stream_putc(s, pfx.prefixlen); | |
2331 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2332 | |
2333 | stream_putw(s, 0); /* dst port */ | |
2334 | ||
6cfe5d15 PG |
2335 | /* if pbr present, fwmark is not used */ |
2336 | if (pbr) | |
2337 | stream_putl(s, 0); | |
2338 | else | |
2339 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d PG |
2340 | |
2341 | stream_putl(s, pbra->table_id); | |
2342 | ||
2343 | stream_putl(s, 0); /* ifindex unused */ | |
2344 | } | |
2345 | ||
2346 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2347 | struct bgp_pbr_match *pbim) | |
2348 | { | |
2349 | stream_putl(s, pbim->unique); | |
2350 | stream_putl(s, pbim->type); | |
2351 | ||
2352 | stream_put(s, pbim->ipset_name, | |
2353 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2354 | } |
2355 | ||
2356 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2357 | struct bgp_pbr_match_entry *pbime) | |
2358 | { | |
2359 | stream_putl(s, pbime->unique); | |
2360 | /* check that back pointer is not null */ | |
2361 | stream_put(s, pbime->backpointer->ipset_name, | |
2362 | ZEBRA_IPSET_NAME_SIZE); | |
2363 | ||
2364 | stream_putc(s, pbime->src.family); | |
2365 | stream_putc(s, pbime->src.prefixlen); | |
2366 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2367 | ||
2368 | stream_putc(s, pbime->dst.family); | |
2369 | stream_putc(s, pbime->dst.prefixlen); | |
2370 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2371 | |
2372 | stream_putw(s, pbime->src_port_min); | |
2373 | stream_putw(s, pbime->src_port_max); | |
2374 | stream_putw(s, pbime->dst_port_min); | |
2375 | stream_putw(s, pbime->dst_port_max); | |
2376 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2377 | } |
2378 | ||
c16a0a62 PG |
2379 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2380 | struct bgp_pbr_action *bpa, | |
2381 | struct bgp_pbr_match *pbm) | |
2382 | { | |
2383 | stream_putl(s, pbm->unique2); | |
2384 | ||
2385 | stream_putl(s, pbm->type); | |
2386 | ||
2387 | stream_putl(s, pbm->flags); | |
2388 | ||
2389 | /* TODO: correlate with what is contained | |
2390 | * into bgp_pbr_action. | |
2391 | * currently only forward supported | |
2392 | */ | |
2393 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2394 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2395 | else | |
2396 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2397 | stream_putl(s, bpa->fwmark); | |
2398 | stream_put(s, pbm->ipset_name, | |
2399 | ZEBRA_IPSET_NAME_SIZE); | |
83360720 PG |
2400 | stream_putw(s, pbm->pkt_len_min); |
2401 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2402 | stream_putw(s, pbm->tcp_flags); |
2403 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2404 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2405 | stream_putc(s, pbm->fragment); |
f449d223 | 2406 | stream_putc(s, pbm->protocol); |
c16a0a62 PG |
2407 | } |
2408 | ||
ad4cbda1 | 2409 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2410 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2411 | { |
d62a17ae | 2412 | struct bgp *bgp; |
7076bb2f | 2413 | |
d62a17ae | 2414 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2415 | |
d62a17ae | 2416 | /* At this point, we may or may not have BGP instances configured, but |
2417 | * we're only interested in the default VRF (others wouldn't have learnt | |
2418 | * the VRF from Zebra yet.) | |
2419 | */ | |
2420 | bgp = bgp_get_default(); | |
2421 | if (!bgp) | |
2422 | return; | |
ad4cbda1 | 2423 | |
d62a17ae | 2424 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2425 | |
d62a17ae | 2426 | /* Send the client registration */ |
0945d5ed | 2427 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, bgp->vrf_id); |
2376c3f2 | 2428 | |
955bfd98 | 2429 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2430 | bgp_lp_event_zebra_up(); |
955bfd98 | 2431 | |
d62a17ae | 2432 | /* TODO - What if we have peers and networks configured, do we have to |
2433 | * kick-start them? | |
2434 | */ | |
7076bb2f FL |
2435 | } |
2436 | ||
121f9dee | 2437 | static int bgp_zebra_process_local_es(ZAPI_CALLBACK_ARGS) |
50f74cf1 | 2438 | { |
2439 | esi_t esi; | |
2440 | struct bgp *bgp = NULL; | |
2441 | struct stream *s = NULL; | |
2442 | char buf[ESI_STR_LEN]; | |
2443 | char buf1[INET6_ADDRSTRLEN]; | |
2444 | struct ipaddr originator_ip; | |
2445 | ||
2446 | memset(&esi, 0, sizeof(esi_t)); | |
2447 | memset(&originator_ip, 0, sizeof(struct ipaddr)); | |
2448 | ||
2449 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2450 | if (!bgp) | |
2451 | return 0; | |
2452 | ||
2453 | s = zclient->ibuf; | |
2454 | stream_get(&esi, s, sizeof(esi_t)); | |
2455 | stream_get(&originator_ip, s, sizeof(struct ipaddr)); | |
2456 | ||
2457 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2458 | zlog_debug("Rx %s ESI %s originator-ip %s", | |
2459 | (cmd == ZEBRA_LOCAL_ES_ADD) ? "add" : "del", | |
2460 | esi_to_str(&esi, buf, sizeof(buf)), | |
2461 | ipaddr2str(&originator_ip, buf1, sizeof(buf1))); | |
2462 | ||
2463 | if (cmd == ZEBRA_LOCAL_ES_ADD) | |
2464 | bgp_evpn_local_es_add(bgp, &esi, &originator_ip); | |
2465 | else | |
2466 | bgp_evpn_local_es_del(bgp, &esi, &originator_ip); | |
2467 | return 0; | |
2468 | } | |
2469 | ||
121f9dee | 2470 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 2471 | { |
c48d9f5f | 2472 | int filter = 0; |
fe1dc5a3 | 2473 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 2474 | vni_t l3vni = 0; |
14e814ea | 2475 | struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} }; |
b67a60d2 | 2476 | struct in_addr originator_ip; |
fe1dc5a3 | 2477 | struct stream *s; |
0483af6e | 2478 | ifindex_t svi_ifindex; |
14e814ea CS |
2479 | bool is_anycast_mac = false; |
2480 | char buf1[ETHER_ADDR_STRLEN]; | |
fe1dc5a3 | 2481 | |
14e814ea | 2482 | memset(&svi_rmac, 0, sizeof(struct ethaddr)); |
b67a60d2 | 2483 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2484 | s = zclient->ibuf; |
2485 | l3vni = stream_getl(s); | |
b67a60d2 | 2486 | if (cmd == ZEBRA_L3VNI_ADD) { |
14e814ea | 2487 | stream_get(&svi_rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2488 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2489 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2490 | svi_ifindex = stream_getl(s); |
14e814ea CS |
2491 | stream_get(&vrr_rmac, s, sizeof(struct ethaddr)); |
2492 | is_anycast_mac = stream_getl(s); | |
fe1dc5a3 | 2493 | |
0483af6e | 2494 | if (BGP_DEBUG(zebra, ZEBRA)) |
14e814ea | 2495 | zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %s vrr-mac %s filter %s svi-if %u", |
0483af6e | 2496 | vrf_id_to_name(vrf_id), l3vni, |
14e814ea CS |
2497 | prefix_mac2str(&svi_rmac, buf, sizeof(buf)), |
2498 | prefix_mac2str(&vrr_rmac, buf1, | |
2499 | sizeof(buf1)), | |
0483af6e | 2500 | filter ? "prefix-routes-only" : "none", |
2501 | svi_ifindex); | |
fe1dc5a3 | 2502 | |
14e814ea CS |
2503 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac, |
2504 | originator_ip, filter, svi_ifindex, | |
2505 | is_anycast_mac); | |
0483af6e | 2506 | } else { |
2507 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2508 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2509 | vrf_id_to_name(vrf_id), l3vni); | |
2510 | ||
fe1dc5a3 | 2511 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 2512 | } |
fe1dc5a3 MK |
2513 | |
2514 | return 0; | |
2515 | } | |
2516 | ||
121f9dee | 2517 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2518 | { |
d62a17ae | 2519 | struct stream *s; |
2520 | vni_t vni; | |
2521 | struct bgp *bgp; | |
a4d82a8a | 2522 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2523 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 2524 | struct in_addr mcast_grp = {INADDR_ANY}; |
d62a17ae | 2525 | |
2526 | s = zclient->ibuf; | |
2527 | vni = stream_getl(s); | |
121f9dee | 2528 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 2529 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 2530 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 2531 | mcast_grp.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2532 | } |
2533 | ||
d62a17ae | 2534 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2535 | if (!bgp) | |
2536 | return 0; | |
2537 | ||
2538 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 | 2539 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
121f9dee | 2540 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
a4d82a8a PZ |
2541 | vrf_id_to_name(vrf_id), vni, |
2542 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2543 | |
121f9dee | 2544 | if (cmd == ZEBRA_VNI_ADD) |
d62a17ae | 2545 | return bgp_evpn_local_vni_add( |
29c53922 | 2546 | bgp, vni, vtep_ip.s_addr ? vtep_ip : bgp->router_id, |
76d07c7a | 2547 | tenant_vrf_id, mcast_grp); |
d62a17ae | 2548 | else |
2549 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2550 | } |
2551 | ||
121f9dee | 2552 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2553 | { |
d62a17ae | 2554 | struct stream *s; |
2555 | vni_t vni; | |
2556 | struct bgp *bgp; | |
2557 | struct ethaddr mac; | |
2558 | struct ipaddr ip; | |
2559 | int ipa_len; | |
2560 | char buf[ETHER_ADDR_STRLEN]; | |
2561 | char buf1[INET6_ADDRSTRLEN]; | |
f07e1c99 | 2562 | uint8_t flags = 0; |
2563 | uint32_t seqnum = 0; | |
ec0ab544 | 2564 | int state = 0; |
d62a17ae | 2565 | |
2566 | memset(&ip, 0, sizeof(ip)); | |
2567 | s = zclient->ibuf; | |
2568 | vni = stream_getl(s); | |
28328ea9 | 2569 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2570 | ipa_len = stream_getl(s); |
2571 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2572 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 2573 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 2574 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 2575 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 2576 | ipa_len); |
d62a17ae | 2577 | return -1; |
2578 | } | |
2579 | ||
2580 | if (ipa_len) { | |
2581 | ip.ipa_type = | |
2582 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2583 | stream_get(&ip.ip.addr, s, ipa_len); | |
2584 | } | |
121f9dee | 2585 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 2586 | flags = stream_getc(s); |
2587 | seqnum = stream_getl(s); | |
ec0ab544 AK |
2588 | } else { |
2589 | state = stream_getl(s); | |
f07e1c99 | 2590 | } |
d62a17ae | 2591 | |
2592 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2593 | if (!bgp) | |
2594 | return 0; | |
2595 | ||
2596 | if (BGP_DEBUG(zebra, ZEBRA)) | |
ec0ab544 | 2597 | zlog_debug("%u:Recv MACIP %s flags 0x%x MAC %s IP %s VNI %u seq %u state %d", |
121f9dee | 2598 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1a98c087 | 2599 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), |
ec0ab544 AK |
2600 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum, |
2601 | state); | |
d62a17ae | 2602 | |
121f9dee | 2603 | if (cmd == ZEBRA_MACIP_ADD) |
f07e1c99 | 2604 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
2605 | flags, seqnum); | |
d62a17ae | 2606 | else |
ec0ab544 | 2607 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
128ea8ab | 2608 | } |
6aeb9e78 | 2609 | |
121f9dee | 2610 | static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
2611 | { |
2612 | struct stream *s = NULL; | |
2613 | struct bgp *bgp_vrf = NULL; | |
2614 | struct prefix p; | |
2615 | char buf[PREFIX_STRLEN]; | |
2616 | ||
2617 | memset(&p, 0, sizeof(struct prefix)); | |
2618 | s = zclient->ibuf; | |
2619 | stream_get(&p, s, sizeof(struct prefix)); | |
2620 | ||
2621 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2622 | if (!bgp_vrf) | |
2623 | return; | |
2624 | ||
2625 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2626 | zlog_debug("Recv prefix %s %s on vrf %s", | |
2627 | prefix2str(&p, buf, sizeof(buf)), | |
2628 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
2629 | vrf_id_to_name(vrf_id)); | |
2630 | ||
2631 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2632 | ||
2633 | if (p.family == AF_INET) | |
d90b788e A |
2634 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2635 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 2636 | else |
d90b788e A |
2637 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2638 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2639 | |
2640 | } else { | |
2641 | if (p.family == AF_INET) | |
d90b788e A |
2642 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
2643 | SAFI_UNICAST); | |
31310b25 | 2644 | else |
d90b788e A |
2645 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
2646 | SAFI_UNICAST); | |
31310b25 MK |
2647 | } |
2648 | } | |
2649 | ||
121f9dee | 2650 | static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
2651 | { |
2652 | struct stream *s = NULL; | |
2653 | uint8_t response_keep; | |
2654 | uint32_t first; | |
2655 | uint32_t last; | |
aec865e4 FR |
2656 | uint8_t proto; |
2657 | unsigned short instance; | |
955bfd98 PZ |
2658 | |
2659 | s = zclient->ibuf; | |
aec865e4 FR |
2660 | STREAM_GETC(s, proto); |
2661 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2662 | STREAM_GETC(s, response_keep); |
2663 | STREAM_GETL(s, first); | |
2664 | STREAM_GETL(s, last); | |
2665 | ||
aec865e4 | 2666 | if (zclient->redist_default != proto) { |
e50f7cfd | 2667 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 2668 | proto); |
aec865e4 FR |
2669 | return; |
2670 | } | |
2671 | if (zclient->instance != instance) { | |
e50f7cfd | 2672 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 2673 | proto); |
aec865e4 FR |
2674 | return; |
2675 | } | |
2676 | ||
955bfd98 PZ |
2677 | if (first > last || |
2678 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2679 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2680 | ||
e50f7cfd | 2681 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 2682 | __func__, first, last); |
955bfd98 PZ |
2683 | return; |
2684 | } | |
2685 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2686 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2687 | first, last, response_keep); | |
2688 | } | |
2689 | ||
e70e9f8e | 2690 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2691 | |
2692 | stream_failure: /* for STREAM_GETX */ | |
2693 | return; | |
2694 | } | |
2695 | ||
342213ea DS |
2696 | extern struct zebra_privs_t bgpd_privs; |
2697 | ||
138c5a74 DS |
2698 | static int bgp_ifp_create(struct interface *ifp) |
2699 | { | |
ef7bd2a3 DS |
2700 | struct bgp *bgp; |
2701 | ||
2702 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2703 | zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name); | |
2704 | ||
2705 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); | |
2706 | if (!bgp) | |
2707 | return 0; | |
2708 | ||
2709 | bgp_mac_add_mac_entry(ifp); | |
2710 | ||
2711 | bgp_update_interface_nbrs(bgp, ifp, ifp); | |
138c5a74 DS |
2712 | return 0; |
2713 | } | |
2714 | ||
f533be73 | 2715 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2716 | { |
d62a17ae | 2717 | zclient_num_connects = 0; |
2718 | ||
138c5a74 DS |
2719 | if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up, |
2720 | bgp_ifp_down, bgp_ifp_destroy); | |
2721 | ||
d62a17ae | 2722 | /* Set default values. */ |
26f63a1e | 2723 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2724 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2725 | zclient->zebra_connected = bgp_zebra_connected; |
2726 | zclient->router_id_update = bgp_router_id_update; | |
d62a17ae | 2727 | zclient->interface_address_add = bgp_interface_address_add; |
2728 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2729 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2730 | zclient->interface_nbr_address_delete = | |
2731 | bgp_interface_nbr_address_delete; | |
2732 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2733 | zclient->redistribute_route_add = zebra_read_route; |
2734 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 2735 | zclient->nexthop_update = bgp_read_nexthop_update; |
2736 | zclient->import_check_update = bgp_read_import_check_update; | |
2737 | zclient->fec_update = bgp_read_fec_update; | |
50f74cf1 | 2738 | zclient->local_es_add = bgp_zebra_process_local_es; |
2739 | zclient->local_es_del = bgp_zebra_process_local_es; | |
d62a17ae | 2740 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
2741 | zclient->local_vni_del = bgp_zebra_process_local_vni; | |
2742 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
2743 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
2744 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
2745 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
2746 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
2747 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 2748 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
2749 | zclient->rule_notify_owner = rule_notify_owner; |
2750 | zclient->ipset_notify_owner = ipset_notify_owner; | |
2751 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 2752 | zclient->iptable_notify_owner = iptable_notify_owner; |
f533be73 | 2753 | zclient->instance = instance; |
718e3744 | 2754 | } |
bb86c601 | 2755 | |
d62a17ae | 2756 | void bgp_zebra_destroy(void) |
bb86c601 | 2757 | { |
d62a17ae | 2758 | if (zclient == NULL) |
2759 | return; | |
2760 | zclient_stop(zclient); | |
2761 | zclient_free(zclient); | |
2762 | zclient = NULL; | |
bb86c601 | 2763 | } |
afbb1c59 | 2764 | |
d62a17ae | 2765 | int bgp_zebra_num_connects(void) |
afbb1c59 | 2766 | { |
d62a17ae | 2767 | return zclient_num_connects; |
afbb1c59 | 2768 | } |
30d50e6d | 2769 | |
6cfe5d15 PG |
2770 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
2771 | struct bgp_pbr_rule *pbr, | |
2772 | bool install) | |
30d50e6d PG |
2773 | { |
2774 | struct stream *s; | |
2775 | ||
6cfe5d15 | 2776 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 2777 | return; |
6cfe5d15 PG |
2778 | if (pbr && pbr->install_in_progress) |
2779 | return; | |
2780 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2781 | if (pbr) | |
2782 | zlog_debug("%s: table %d (ip rule) %d", | |
2783 | __PRETTY_FUNCTION__, | |
2784 | pbra->table_id, install); | |
2785 | else | |
2786 | zlog_debug("%s: table %d fwmark %d %d", | |
2787 | __PRETTY_FUNCTION__, | |
2788 | pbra->table_id, pbra->fwmark, install); | |
2789 | } | |
30d50e6d PG |
2790 | s = zclient->obuf; |
2791 | stream_reset(s); | |
2792 | ||
2793 | zclient_create_header(s, | |
2794 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
2795 | VRF_DEFAULT); | |
2796 | stream_putl(s, 1); /* send one pbr action */ | |
2797 | ||
6cfe5d15 | 2798 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
2799 | |
2800 | stream_putw_at(s, 0, stream_get_endp(s)); | |
6cfe5d15 PG |
2801 | if (!zclient_send_message(zclient) && install) { |
2802 | if (!pbr) | |
2803 | pbra->install_in_progress = true; | |
2804 | else | |
2805 | pbr->install_in_progress = true; | |
2806 | } | |
30d50e6d PG |
2807 | } |
2808 | ||
2809 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
2810 | { | |
2811 | struct stream *s; | |
2812 | ||
2813 | if (pbrim->install_in_progress) | |
2814 | return; | |
f0936054 | 2815 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2816 | zlog_debug("%s: name %s type %d %d, ID %u", |
f0936054 | 2817 | __PRETTY_FUNCTION__, |
88055124 PG |
2818 | pbrim->ipset_name, pbrim->type, |
2819 | install, pbrim->unique); | |
30d50e6d PG |
2820 | s = zclient->obuf; |
2821 | stream_reset(s); | |
2822 | ||
2823 | zclient_create_header(s, | |
2824 | install ? ZEBRA_IPSET_CREATE : | |
2825 | ZEBRA_IPSET_DESTROY, | |
2826 | VRF_DEFAULT); | |
2827 | ||
2828 | stream_putl(s, 1); /* send one pbr action */ | |
2829 | ||
2830 | bgp_encode_pbr_ipset_match(s, pbrim); | |
2831 | ||
2832 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2833 | if (!zclient_send_message(zclient) && install) | |
2834 | pbrim->install_in_progress = true; | |
2835 | } | |
2836 | ||
2837 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
2838 | bool install) | |
2839 | { | |
2840 | struct stream *s; | |
2841 | ||
2842 | if (pbrime->install_in_progress) | |
2843 | return; | |
f0936054 | 2844 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2845 | zlog_debug("%s: name %s %d %d, ID %u", __PRETTY_FUNCTION__, |
f0936054 | 2846 | pbrime->backpointer->ipset_name, |
88055124 | 2847 | pbrime->unique, install, pbrime->unique); |
30d50e6d PG |
2848 | s = zclient->obuf; |
2849 | stream_reset(s); | |
2850 | ||
2851 | zclient_create_header(s, | |
2852 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
2853 | ZEBRA_IPSET_ENTRY_DELETE, | |
2854 | VRF_DEFAULT); | |
2855 | ||
2856 | stream_putl(s, 1); /* send one pbr action */ | |
2857 | ||
2858 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
2859 | ||
2860 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2861 | if (!zclient_send_message(zclient) && install) | |
2862 | pbrime->install_in_progress = true; | |
2863 | } | |
c16a0a62 | 2864 | |
4762c213 PG |
2865 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s) |
2866 | { | |
2867 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2868 | struct bgp_pbr_interface_head *head; | |
2869 | struct bgp_pbr_interface *pbr_if; | |
2870 | struct interface *ifp; | |
2871 | ||
2872 | if (!bgp_pbr_cfg) | |
2873 | return; | |
2874 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2875 | ||
2876 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
a36898e7 | 2877 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); |
4762c213 PG |
2878 | if (ifp) |
2879 | stream_putl(s, ifp->ifindex); | |
2880 | } | |
2881 | } | |
2882 | ||
2883 | static int bgp_pbr_get_ifnumber(struct bgp *bgp) | |
2884 | { | |
2885 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
2886 | struct bgp_pbr_interface_head *head; | |
2887 | struct bgp_pbr_interface *pbr_if; | |
2888 | int cnt = 0; | |
2889 | ||
2890 | if (!bgp_pbr_cfg) | |
2891 | return 0; | |
2892 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
2893 | ||
2894 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { | |
a36898e7 | 2895 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) |
4762c213 PG |
2896 | cnt++; |
2897 | } | |
2898 | return cnt; | |
2899 | } | |
2900 | ||
c16a0a62 PG |
2901 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
2902 | struct bgp_pbr_match *pbm, | |
2903 | bool install) | |
2904 | { | |
2905 | struct stream *s; | |
b5c40105 | 2906 | int ret = 0; |
4762c213 | 2907 | int nb_interface; |
c16a0a62 PG |
2908 | |
2909 | if (pbm->install_iptable_in_progress) | |
2910 | return; | |
f0936054 | 2911 | if (BGP_DEBUG(zebra, ZEBRA)) |
88055124 | 2912 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", |
f0936054 | 2913 | __PRETTY_FUNCTION__, pbm->ipset_name, |
88055124 PG |
2914 | pbm->type, pba->fwmark, install, |
2915 | pbm->unique2); | |
c16a0a62 PG |
2916 | s = zclient->obuf; |
2917 | stream_reset(s); | |
2918 | ||
2919 | zclient_create_header(s, | |
2920 | install ? ZEBRA_IPTABLE_ADD : | |
2921 | ZEBRA_IPTABLE_DELETE, | |
2922 | VRF_DEFAULT); | |
2923 | ||
2924 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
4762c213 PG |
2925 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp); |
2926 | stream_putl(s, nb_interface); | |
2927 | if (nb_interface) | |
2928 | bgp_encode_pbr_interface_list(pba->bgp, s); | |
c16a0a62 | 2929 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
2930 | ret = zclient_send_message(zclient); |
2931 | if (install) { | |
2932 | if (ret) | |
2933 | pba->refcnt++; | |
2934 | else | |
2935 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 2936 | } |
c16a0a62 | 2937 | } |
f7df1907 PG |
2938 | |
2939 | /* inject in table <table_id> a default route to: | |
2940 | * - if nexthop IP is present : to this nexthop | |
2941 | * - if vrf is different from local : to the matching VRF | |
2942 | */ | |
2943 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
2944 | afi_t afi, uint32_t table_id, bool announce) | |
2945 | { | |
2946 | struct zapi_nexthop *api_nh; | |
2947 | struct zapi_route api; | |
2948 | struct prefix p; | |
2949 | ||
2950 | if (!nh || nh->type != NEXTHOP_TYPE_IPV4 | |
2951 | || nh->vrf_id == VRF_UNKNOWN) | |
2952 | return; | |
2953 | memset(&p, 0, sizeof(struct prefix)); | |
2954 | /* default route */ | |
2955 | if (afi != AFI_IP) | |
2956 | return; | |
2957 | p.family = AF_INET; | |
2958 | memset(&api, 0, sizeof(api)); | |
2959 | api.vrf_id = bgp->vrf_id; | |
2960 | api.type = ZEBRA_ROUTE_BGP; | |
2961 | api.safi = SAFI_UNICAST; | |
2962 | api.prefix = p; | |
2963 | api.tableid = table_id; | |
2964 | api.nexthop_num = 1; | |
2965 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
2966 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
2967 | api_nh = &api.nexthops[0]; | |
2968 | ||
38a8c751 DS |
2969 | api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT; |
2970 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
2971 | ||
f7df1907 PG |
2972 | /* redirect IP */ |
2973 | if (nh->gate.ipv4.s_addr) { | |
2974 | char buff[PREFIX_STRLEN]; | |
2975 | ||
2976 | api_nh->vrf_id = nh->vrf_id; | |
2977 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
2978 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
2979 | ||
2980 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
2981 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
2982 | zlog_info("BGP: %s default route to %s table %d (redirect IP)", |
2983 | announce ? "adding" : "withdrawing", | |
f7df1907 PG |
2984 | buff, table_id); |
2985 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
2986 | : ZEBRA_ROUTE_DELETE, | |
2987 | zclient, &api); | |
2988 | } else if (nh->vrf_id != bgp->vrf_id) { | |
2989 | struct vrf *vrf; | |
eb4244f8 | 2990 | struct interface *ifp; |
f7df1907 | 2991 | |
eb4244f8 | 2992 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
2993 | if (!vrf) |
2994 | return; | |
eb4244f8 PG |
2995 | /* create default route with interface <VRF> |
2996 | * with nexthop-vrf <VRF> | |
f7df1907 | 2997 | */ |
eb4244f8 PG |
2998 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
2999 | if (!ifp) | |
3000 | return; | |
3001 | api_nh->vrf_id = nh->vrf_id; | |
3002 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
3003 | api_nh->ifindex = ifp->ifindex; | |
3004 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3005 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
3006 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
3007 | vrf->name, table_id); |
3008 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3009 | : ZEBRA_ROUTE_DELETE, | |
3010 | zclient, &api); | |
f7df1907 PG |
3011 | return; |
3012 | } | |
3013 | } |