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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" |
49e5a4a0 | 54 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 55 | #include "bgpd/rfapi/rfapi_backend.h" |
56 | #include "bgpd/rfapi/vnc_export_bgp.h" | |
65efcfce | 57 | #endif |
128ea8ab | 58 | #include "bgpd/bgp_evpn.h" |
ddb5b488 | 59 | #include "bgpd/bgp_mplsvpn.h" |
955bfd98 | 60 | #include "bgpd/bgp_labelpool.h" |
30d50e6d | 61 | #include "bgpd/bgp_pbr.h" |
0b9d9cd0 | 62 | #include "bgpd/bgp_evpn_private.h" |
c44ab6f1 | 63 | #include "bgpd/bgp_evpn_mh.h" |
6a69ac51 | 64 | #include "bgpd/bgp_mac.h" |
6b0655a2 | 65 | |
718e3744 | 66 | /* All information about zebra. */ |
228da428 | 67 | struct zclient *zclient = NULL; |
718e3744 | 68 | |
ad4cbda1 | 69 | /* Can we install into zebra? */ |
3dc339cd | 70 | static inline bool bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 71 | { |
d62a17ae | 72 | if (zclient->sock <= 0) |
3dc339cd | 73 | return false; |
ad4cbda1 | 74 | |
bb4ef1ae | 75 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
15569c58 DA |
76 | zlog_debug( |
77 | "%s: No zebra instance to talk to, not installing information", | |
78 | __func__); | |
3dc339cd | 79 | return false; |
bb4ef1ae | 80 | } |
ad4cbda1 | 81 | |
3dc339cd | 82 | return true; |
ad4cbda1 | 83 | } |
84 | ||
afbb1c59 LB |
85 | int zclient_num_connects; |
86 | ||
18a6dce6 | 87 | /* Router-id update message from zebra. */ |
121f9dee | 88 | static int bgp_router_id_update(ZAPI_CALLBACK_ARGS) |
718e3744 | 89 | { |
d62a17ae | 90 | struct prefix router_id; |
718e3744 | 91 | |
d62a17ae | 92 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 93 | |
d62a17ae | 94 | if (BGP_DEBUG(zebra, ZEBRA)) { |
95 | char buf[PREFIX2STR_BUFFER]; | |
96 | prefix2str(&router_id, buf, sizeof(buf)); | |
97 | zlog_debug("Rx Router Id update VRF %u Id %s", vrf_id, buf); | |
98 | } | |
a39275d7 | 99 | |
d62a17ae | 100 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
101 | return 0; | |
718e3744 | 102 | } |
103 | ||
fb018d25 | 104 | /* Nexthop update message from zebra. */ |
121f9dee | 105 | static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS) |
fb018d25 | 106 | { |
121f9dee | 107 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 108 | return 0; |
078430f6 DS |
109 | } |
110 | ||
121f9dee | 111 | static int bgp_read_import_check_update(ZAPI_CALLBACK_ARGS) |
078430f6 | 112 | { |
121f9dee | 113 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 114 | return 0; |
fb018d25 DS |
115 | } |
116 | ||
4a04e5f7 | 117 | /* Set or clear interface on which unnumbered neighbor is configured. This |
118 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
119 | * interface. | |
120 | */ | |
d62a17ae | 121 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
122 | struct interface *upd_ifp) | |
4a04e5f7 | 123 | { |
d62a17ae | 124 | struct listnode *node, *nnode; |
125 | struct peer *peer; | |
126 | ||
127 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
128 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
129 | if (upd_ifp) { | |
130 | peer->ifp = upd_ifp; | |
131 | bgp_zebra_initiate_radv(bgp, peer); | |
132 | } else { | |
133 | bgp_zebra_terminate_radv(bgp, peer); | |
134 | peer->ifp = upd_ifp; | |
135 | } | |
136 | } | |
137 | } | |
4a04e5f7 | 138 | } |
139 | ||
d62a17ae | 140 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
141 | zebra_size_t length) | |
cd1964ff | 142 | { |
d62a17ae | 143 | bgp_parse_fec_update(); |
144 | return 0; | |
cd1964ff DS |
145 | } |
146 | ||
d62a17ae | 147 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 148 | { |
d62a17ae | 149 | struct listnode *node, *nnode; |
150 | struct peer *peer; | |
151 | ||
152 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
153 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
154 | && peer->status != Established) { | |
155 | if (peer_active(peer)) | |
156 | BGP_EVENT_ADD(peer, BGP_Stop); | |
157 | BGP_EVENT_ADD(peer, BGP_Start); | |
158 | } | |
159 | } | |
a80beece DS |
160 | } |
161 | ||
d62a17ae | 162 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 163 | { |
d62a17ae | 164 | struct listnode *node; |
165 | struct connected *connected; | |
166 | struct interface *ifp; | |
167 | struct prefix *p; | |
168 | ||
169 | /* Kick-off the FSM for any relevant peers only if there is a | |
170 | * valid local address on the interface. | |
171 | */ | |
172 | ifp = ifc->ifp; | |
173 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
174 | p = connected->address; | |
175 | if (p->family == AF_INET6 | |
176 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
177 | break; | |
178 | } | |
179 | if (!connected) | |
180 | return; | |
181 | ||
182 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
183 | } |
184 | ||
d62a17ae | 185 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
186 | int del) | |
a80beece | 187 | { |
d62a17ae | 188 | struct listnode *node, *nnode; |
189 | struct peer *peer; | |
190 | struct interface *ifp; | |
191 | ||
192 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
193 | if (peer->conf_if | |
194 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
195 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
196 | BGP_EVENT_ADD(peer, BGP_Stop); | |
197 | } | |
198 | } | |
199 | /* Free neighbor also, if we're asked to. */ | |
200 | if (del) { | |
201 | ifp = ifc->ifp; | |
202 | listnode_delete(ifp->nbr_connected, ifc); | |
203 | nbr_connected_free(ifc); | |
204 | } | |
a80beece DS |
205 | } |
206 | ||
3c3c3252 | 207 | static int bgp_ifp_destroy(struct interface *ifp) |
718e3744 | 208 | { |
d62a17ae | 209 | struct bgp *bgp; |
718e3744 | 210 | |
3c3c3252 | 211 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
a4499b83 | 212 | |
d62a17ae | 213 | if (BGP_DEBUG(zebra, ZEBRA)) |
3835984f | 214 | zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf_id, ifp->name); |
a39275d7 | 215 | |
85751d1d DS |
216 | if (bgp) |
217 | bgp_update_interface_nbrs(bgp, ifp, NULL); | |
64745052 | 218 | |
6a69ac51 DS |
219 | bgp_mac_del_mac_entry(ifp); |
220 | ||
d62a17ae | 221 | return 0; |
718e3744 | 222 | } |
223 | ||
ddbf3e60 | 224 | static int bgp_ifp_up(struct interface *ifp) |
718e3744 | 225 | { |
d62a17ae | 226 | struct connected *c; |
227 | struct nbr_connected *nc; | |
228 | struct listnode *node, *nnode; | |
229 | struct bgp *bgp; | |
6aeb9e78 | 230 | |
ddbf3e60 | 231 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 232 | |
6a69ac51 DS |
233 | bgp_mac_add_mac_entry(ifp); |
234 | ||
d62a17ae | 235 | if (BGP_DEBUG(zebra, ZEBRA)) |
ddbf3e60 | 236 | zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 237 | |
85751d1d DS |
238 | if (!bgp) |
239 | return 0; | |
240 | ||
d62a17ae | 241 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
242 | bgp_connected_add(bgp, c); | |
718e3744 | 243 | |
d62a17ae | 244 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
245 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 246 | |
d62a17ae | 247 | return 0; |
718e3744 | 248 | } |
249 | ||
b0b69e59 | 250 | static int bgp_ifp_down(struct interface *ifp) |
718e3744 | 251 | { |
d62a17ae | 252 | struct connected *c; |
253 | struct nbr_connected *nc; | |
254 | struct listnode *node, *nnode; | |
255 | struct bgp *bgp; | |
c19fe3c7 | 256 | struct peer *peer; |
6aeb9e78 | 257 | |
b0b69e59 | 258 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 259 | |
6a69ac51 DS |
260 | bgp_mac_del_mac_entry(ifp); |
261 | ||
d62a17ae | 262 | if (BGP_DEBUG(zebra, ZEBRA)) |
b0b69e59 | 263 | zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 264 | |
85751d1d DS |
265 | if (!bgp) |
266 | return 0; | |
267 | ||
d62a17ae | 268 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
269 | bgp_connected_delete(bgp, c); | |
718e3744 | 270 | |
d62a17ae | 271 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
272 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 273 | |
d62a17ae | 274 | /* Fast external-failover */ |
c19fe3c7 | 275 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 276 | |
d62a17ae | 277 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
8c4f6381 | 278 | #if defined(HAVE_CUMULUS) |
d62a17ae | 279 | /* Take down directly connected EBGP peers as well as |
280 | * 1-hop BFD | |
281 | * tracked (directly connected) IBGP peers. | |
282 | */ | |
c8d6f0d6 | 283 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 | 284 | && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED) |
d62a17ae | 285 | && (!peer->bfd_info |
286 | || bgp_bfd_is_peer_multihop(peer))) | |
8c4f6381 | 287 | #else |
d62a17ae | 288 | /* Take down directly connected EBGP peers */ |
c8d6f0d6 | 289 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 | 290 | && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED)) |
8c4f6381 | 291 | #endif |
d62a17ae | 292 | continue; |
718e3744 | 293 | |
d62a17ae | 294 | if (ifp == peer->nexthop.ifp) { |
295 | BGP_EVENT_ADD(peer, BGP_Stop); | |
296 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
297 | } | |
298 | } | |
299 | } | |
718e3744 | 300 | |
d62a17ae | 301 | return 0; |
718e3744 | 302 | } |
303 | ||
121f9dee | 304 | static int bgp_interface_address_add(ZAPI_CALLBACK_ARGS) |
718e3744 | 305 | { |
d62a17ae | 306 | struct connected *ifc; |
2f9123e0 DS |
307 | struct bgp *bgp; |
308 | ||
309 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
d62a17ae | 310 | |
121f9dee | 311 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 312 | |
313 | if (ifc == NULL) | |
314 | return 0; | |
315 | ||
316 | if (bgp_debug_zebra(ifc->address)) { | |
317 | char buf[PREFIX2STR_BUFFER]; | |
318 | prefix2str(ifc->address, buf, sizeof(buf)); | |
319 | zlog_debug("Rx Intf address add VRF %u IF %s addr %s", vrf_id, | |
320 | ifc->ifp->name, buf); | |
321 | } | |
322 | ||
85751d1d DS |
323 | if (!bgp) |
324 | return 0; | |
325 | ||
d62a17ae | 326 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 327 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 328 | |
d62a17ae | 329 | /* If we have learnt of any neighbors on this interface, |
330 | * check to kick off any BGP interface-based neighbors, | |
331 | * but only if this is a link-local address. | |
332 | */ | |
333 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
334 | && !list_isempty(ifc->ifp->nbr_connected)) | |
335 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
336 | } | |
337 | ||
338 | return 0; | |
718e3744 | 339 | } |
340 | ||
121f9dee | 341 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 342 | { |
d62a17ae | 343 | struct connected *ifc; |
344 | struct bgp *bgp; | |
6aeb9e78 | 345 | |
2f9123e0 | 346 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 347 | |
121f9dee | 348 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 349 | |
d62a17ae | 350 | if (ifc == NULL) |
351 | return 0; | |
718e3744 | 352 | |
d62a17ae | 353 | if (bgp_debug_zebra(ifc->address)) { |
354 | char buf[PREFIX2STR_BUFFER]; | |
355 | prefix2str(ifc->address, buf, sizeof(buf)); | |
356 | zlog_debug("Rx Intf address del VRF %u IF %s addr %s", vrf_id, | |
357 | ifc->ifp->name, buf); | |
358 | } | |
a39275d7 | 359 | |
85751d1d | 360 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 361 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 362 | } |
718e3744 | 363 | |
721c0857 | 364 | connected_free(&ifc); |
718e3744 | 365 | |
d62a17ae | 366 | return 0; |
718e3744 | 367 | } |
368 | ||
121f9dee | 369 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 370 | { |
d62a17ae | 371 | struct nbr_connected *ifc = NULL; |
372 | struct bgp *bgp; | |
373 | ||
121f9dee | 374 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 375 | |
376 | if (ifc == NULL) | |
377 | return 0; | |
378 | ||
379 | if (bgp_debug_zebra(ifc->address)) { | |
380 | char buf[PREFIX2STR_BUFFER]; | |
381 | prefix2str(ifc->address, buf, sizeof(buf)); | |
382 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %s", vrf_id, | |
383 | ifc->ifp->name, buf); | |
384 | } | |
385 | ||
386 | if (if_is_operative(ifc->ifp)) { | |
387 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
388 | if (bgp) | |
389 | bgp_nbr_connected_add(bgp, ifc); | |
390 | } | |
391 | ||
392 | return 0; | |
a80beece DS |
393 | } |
394 | ||
121f9dee | 395 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 396 | { |
d62a17ae | 397 | struct nbr_connected *ifc = NULL; |
398 | struct bgp *bgp; | |
6aeb9e78 | 399 | |
121f9dee | 400 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 401 | |
d62a17ae | 402 | if (ifc == NULL) |
403 | return 0; | |
a80beece | 404 | |
d62a17ae | 405 | if (bgp_debug_zebra(ifc->address)) { |
406 | char buf[PREFIX2STR_BUFFER]; | |
407 | prefix2str(ifc->address, buf, sizeof(buf)); | |
408 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %s", vrf_id, | |
409 | ifc->ifp->name, buf); | |
410 | } | |
a80beece | 411 | |
d62a17ae | 412 | if (if_is_operative(ifc->ifp)) { |
413 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
414 | if (bgp) | |
415 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
416 | } | |
a80beece | 417 | |
d62a17ae | 418 | nbr_connected_free(ifc); |
a80beece | 419 | |
d62a17ae | 420 | return 0; |
a80beece DS |
421 | } |
422 | ||
bfcd43b2 | 423 | /* VRF update for an interface. */ |
121f9dee | 424 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 425 | { |
d62a17ae | 426 | struct interface *ifp; |
427 | vrf_id_t new_vrf_id; | |
428 | struct connected *c; | |
429 | struct nbr_connected *nc; | |
430 | struct listnode *node, *nnode; | |
431 | struct bgp *bgp; | |
c19fe3c7 | 432 | struct peer *peer; |
bfcd43b2 | 433 | |
d62a17ae | 434 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
435 | &new_vrf_id); | |
436 | if (!ifp) | |
437 | return 0; | |
bfcd43b2 | 438 | |
d62a17ae | 439 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
440 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
441 | ifp->name, new_vrf_id); | |
bfcd43b2 | 442 | |
d62a17ae | 443 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 444 | |
85751d1d DS |
445 | if (bgp) { |
446 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
447 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 448 | |
85751d1d DS |
449 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
450 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 451 | |
85751d1d DS |
452 | /* Fast external-failover */ |
453 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
454 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
c8d6f0d6 | 455 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 DA |
456 | && (peer->gtsm_hops |
457 | != BGP_GTSM_HOPS_CONNECTED)) | |
85751d1d | 458 | continue; |
bfcd43b2 | 459 | |
85751d1d DS |
460 | if (ifp == peer->nexthop.ifp) |
461 | BGP_EVENT_ADD(peer, BGP_Stop); | |
462 | } | |
d62a17ae | 463 | } |
464 | } | |
bfcd43b2 | 465 | |
a36898e7 | 466 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 467 | |
d62a17ae | 468 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
469 | if (!bgp) | |
470 | return 0; | |
bfcd43b2 | 471 | |
d62a17ae | 472 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
473 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 474 | |
d62a17ae | 475 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
476 | bgp_nbr_connected_add(bgp, nc); | |
477 | return 0; | |
bfcd43b2 | 478 | } |
479 | ||
718e3744 | 480 | /* Zebra route add and delete treatment. */ |
121f9dee | 481 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 482 | { |
9de1f7ff | 483 | enum nexthop_types_t nhtype; |
74489921 RW |
484 | struct zapi_route api; |
485 | union g_addr nexthop; | |
9de1f7ff | 486 | ifindex_t ifindex; |
74489921 | 487 | int add, i; |
d62a17ae | 488 | struct bgp *bgp; |
489 | ||
490 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
491 | if (!bgp) | |
492 | return 0; | |
493 | ||
74489921 RW |
494 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
495 | return -1; | |
d62a17ae | 496 | |
74489921 RW |
497 | /* we completely ignore srcdest routes for now. */ |
498 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
499 | return 0; | |
d62a17ae | 500 | |
74489921 RW |
501 | /* ignore link-local address. */ |
502 | if (api.prefix.family == AF_INET6 | |
503 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
504 | return 0; | |
d62a17ae | 505 | |
74489921 RW |
506 | nexthop = api.nexthops[0].gate; |
507 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 508 | nhtype = api.nexthops[0].type; |
d62a17ae | 509 | |
121f9dee | 510 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 511 | if (add) { |
d62a17ae | 512 | /* |
513 | * The ADD message is actually an UPDATE and there is no | |
514 | * explicit DEL | |
515 | * for a prior redistributed route, if any. So, perform an | |
516 | * implicit | |
517 | * DEL processing for the same redistributed route from any | |
518 | * other | |
519 | * source type. | |
520 | */ | |
521 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
522 | if (i != api.type) | |
74489921 | 523 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 524 | api.instance); |
525 | } | |
526 | ||
527 | /* Now perform the add/update. */ | |
74489921 | 528 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
529 | nhtype, api.metric, api.type, api.instance, |
530 | api.tag); | |
d62a17ae | 531 | } else { |
74489921 RW |
532 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
533 | api.instance); | |
a39275d7 | 534 | } |
d62a17ae | 535 | |
74489921 RW |
536 | if (bgp_debug_zebra(&api.prefix)) { |
537 | char buf[2][PREFIX_STRLEN]; | |
538 | ||
539 | prefix2str(&api.prefix, buf[0], sizeof(buf[0])); | |
77e62f2b | 540 | if (add) { |
541 | inet_ntop(api.prefix.family, &nexthop, buf[1], | |
542 | sizeof(buf[1])); | |
543 | zlog_debug( | |
544 | "Rx route ADD VRF %u %s[%d] %s nexthop %s (type %d if %u) metric %u tag %" ROUTE_TAG_PRI, | |
545 | vrf_id, zebra_route_string(api.type), | |
546 | api.instance, buf[0], buf[1], nhtype, | |
547 | ifindex, api.metric, api.tag); | |
548 | } else { | |
549 | zlog_debug( | |
550 | "Rx route DEL VRF %u %s[%d] %s", | |
551 | vrf_id, zebra_route_string(api.type), | |
552 | api.instance, buf[0]); | |
553 | } | |
d62a17ae | 554 | } |
555 | ||
556 | return 0; | |
718e3744 | 557 | } |
6b0655a2 | 558 | |
d62a17ae | 559 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 560 | { |
f4e14fdb | 561 | struct vrf *vrf; |
d62a17ae | 562 | struct listnode *cnode; |
563 | struct interface *ifp; | |
564 | struct connected *connected; | |
565 | struct prefix_ipv4 p; | |
566 | struct prefix *cp; | |
567 | ||
f4e14fdb RW |
568 | vrf = vrf_lookup_by_id(vrf_id); |
569 | if (!vrf) | |
570 | return NULL; | |
571 | ||
d62a17ae | 572 | p.family = AF_INET; |
573 | p.prefix = *addr; | |
574 | p.prefixlen = IPV4_MAX_BITLEN; | |
575 | ||
451fda4f | 576 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 577 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
578 | cp = connected->address; | |
579 | ||
580 | if (cp->family == AF_INET) | |
581 | if (prefix_match(cp, (struct prefix *)&p)) | |
582 | return ifp; | |
583 | } | |
718e3744 | 584 | } |
d62a17ae | 585 | return NULL; |
718e3744 | 586 | } |
587 | ||
d62a17ae | 588 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 589 | { |
f4e14fdb | 590 | struct vrf *vrf; |
d62a17ae | 591 | struct listnode *cnode; |
592 | struct interface *ifp; | |
593 | struct connected *connected; | |
594 | struct prefix *cp; | |
595 | ||
f4e14fdb RW |
596 | vrf = vrf_lookup_by_id(vrf_id); |
597 | if (!vrf) | |
598 | return NULL; | |
599 | ||
451fda4f | 600 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 601 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
602 | cp = connected->address; | |
603 | ||
604 | if (cp->family == AF_INET) | |
605 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
606 | return ifp; | |
607 | } | |
718e3744 | 608 | } |
d62a17ae | 609 | return NULL; |
718e3744 | 610 | } |
611 | ||
d62a17ae | 612 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
613 | vrf_id_t vrf_id) | |
718e3744 | 614 | { |
f4e14fdb | 615 | struct vrf *vrf; |
d62a17ae | 616 | struct listnode *cnode; |
617 | struct interface *ifp; | |
618 | struct connected *connected; | |
619 | struct prefix_ipv6 p; | |
620 | struct prefix *cp; | |
621 | ||
f4e14fdb RW |
622 | vrf = vrf_lookup_by_id(vrf_id); |
623 | if (!vrf) | |
624 | return NULL; | |
625 | ||
d62a17ae | 626 | p.family = AF_INET6; |
627 | p.prefix = *addr; | |
628 | p.prefixlen = IPV6_MAX_BITLEN; | |
629 | ||
451fda4f | 630 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 631 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
632 | cp = connected->address; | |
633 | ||
634 | if (cp->family == AF_INET6) | |
635 | if (prefix_match(cp, (struct prefix *)&p)) { | |
636 | if (IN6_IS_ADDR_LINKLOCAL( | |
637 | &cp->u.prefix6)) { | |
638 | if (ifindex == ifp->ifindex) | |
639 | return ifp; | |
640 | } else | |
641 | return ifp; | |
642 | } | |
643 | } | |
718e3744 | 644 | } |
d62a17ae | 645 | return NULL; |
718e3744 | 646 | } |
647 | ||
d62a17ae | 648 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
649 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 650 | { |
f4e14fdb | 651 | struct vrf *vrf; |
d62a17ae | 652 | struct listnode *cnode; |
653 | struct interface *ifp; | |
654 | struct connected *connected; | |
655 | struct prefix *cp; | |
656 | ||
f4e14fdb RW |
657 | vrf = vrf_lookup_by_id(vrf_id); |
658 | if (!vrf) | |
659 | return NULL; | |
660 | ||
451fda4f | 661 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 662 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
663 | cp = connected->address; | |
664 | ||
665 | if (cp->family == AF_INET6) | |
666 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
667 | if (IN6_IS_ADDR_LINKLOCAL( | |
668 | &cp->u.prefix6)) { | |
669 | if (ifindex == ifp->ifindex) | |
670 | return ifp; | |
671 | } else | |
672 | return ifp; | |
673 | } | |
674 | } | |
718e3744 | 675 | } |
d62a17ae | 676 | return NULL; |
718e3744 | 677 | } |
678 | ||
d62a17ae | 679 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 680 | { |
d62a17ae | 681 | struct listnode *cnode; |
682 | struct connected *connected; | |
683 | struct prefix *cp; | |
684 | ||
685 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
686 | cp = connected->address; | |
687 | ||
688 | if (cp->family == AF_INET6) | |
689 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
690 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
691 | return 1; | |
692 | } | |
693 | } | |
694 | return 0; | |
718e3744 | 695 | } |
696 | ||
d62a17ae | 697 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 698 | { |
d62a17ae | 699 | struct listnode *cnode; |
700 | struct connected *connected; | |
701 | struct prefix *cp; | |
702 | ||
703 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
704 | cp = connected->address; | |
705 | ||
706 | if (cp->family == AF_INET6) | |
707 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
708 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
709 | return 1; | |
710 | } | |
711 | } | |
712 | return 0; | |
718e3744 | 713 | } |
718e3744 | 714 | |
d62a17ae | 715 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 716 | { |
d62a17ae | 717 | struct listnode *cnode; |
718 | struct connected *connected; | |
719 | struct prefix *cp; | |
720 | ||
721 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
722 | cp = connected->address; | |
723 | if ((cp->family == AF_INET) | |
724 | && !ipv4_martian(&(cp->u.prefix4))) { | |
725 | *addr = cp->u.prefix4; | |
726 | return 1; | |
727 | } | |
728 | } | |
729 | return 0; | |
6ee06fa9 PM |
730 | } |
731 | ||
17cdd31e DS |
732 | |
733 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
734 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 735 | { |
d62a17ae | 736 | int ret = 0; |
737 | struct interface *ifp = NULL; | |
738 | ||
739 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
740 | ||
741 | if (!local) | |
17cdd31e | 742 | return false; |
d62a17ae | 743 | if (!remote) |
17cdd31e | 744 | return false; |
d62a17ae | 745 | |
746 | if (local->sa.sa_family == AF_INET) { | |
747 | nexthop->v4 = local->sin.sin_addr; | |
748 | if (peer->update_if) | |
749 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 750 | peer->bgp->vrf_id); |
d62a17ae | 751 | else |
752 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
753 | peer->bgp->vrf_id); | |
718e3744 | 754 | } |
d62a17ae | 755 | if (local->sa.sa_family == AF_INET6) { |
8f2b2139 | 756 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN); |
d62a17ae | 757 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { |
758 | if (peer->conf_if || peer->ifname) | |
759 | ifp = if_lookup_by_name(peer->conf_if | |
760 | ? peer->conf_if | |
761 | : peer->ifname, | |
a36898e7 | 762 | peer->bgp->vrf_id); |
d62a17ae | 763 | } else if (peer->update_if) |
764 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 765 | peer->bgp->vrf_id); |
d62a17ae | 766 | else |
767 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
768 | local->sin6.sin6_scope_id, | |
769 | peer->bgp->vrf_id); | |
718e3744 | 770 | } |
d62a17ae | 771 | |
17cdd31e DS |
772 | if (!ifp) { |
773 | /* | |
774 | * BGP views do not currently get proper data | |
775 | * from zebra( when attached ) to be able to | |
776 | * properly resolve nexthops, so give this | |
777 | * instance type a pass. | |
778 | */ | |
779 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
780 | return true; | |
781 | /* | |
782 | * If we have no interface data but we have established | |
783 | * some connection w/ zebra than something has gone | |
784 | * terribly terribly wrong here, so say this failed | |
785 | * If we do not any zebra connection then not | |
786 | * having a ifp pointer is ok. | |
787 | */ | |
788 | return zclient_num_connects ? false : true; | |
789 | } | |
d62a17ae | 790 | |
791 | nexthop->ifp = ifp; | |
792 | ||
793 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
794 | if (local->sa.sa_family == AF_INET) { | |
795 | /* IPv6 nexthop*/ | |
796 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
797 | ||
798 | if (!ret) { | |
799 | /* There is no global nexthop. Use link-local address as | |
800 | * both the | |
801 | * global and link-local nexthop. In this scenario, the | |
802 | * expectation | |
803 | * for interop is that the network admin would use a | |
804 | * route-map to | |
805 | * specify the global IPv6 nexthop. | |
806 | */ | |
807 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
808 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
809 | IPV6_MAX_BYTELEN); | |
810 | } else | |
811 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
812 | ||
813 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
814 | peer->shared_network = 1; | |
815 | else | |
816 | peer->shared_network = 0; | |
718e3744 | 817 | } |
718e3744 | 818 | |
d62a17ae | 819 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
820 | if (local->sa.sa_family == AF_INET6) { | |
821 | struct interface *direct = NULL; | |
822 | ||
823 | /* IPv4 nexthop. */ | |
824 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
975a328e | 825 | if (!ret && peer->local_id.s_addr != INADDR_ANY) |
d62a17ae | 826 | nexthop->v4 = peer->local_id; |
827 | ||
828 | /* Global address*/ | |
829 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
830 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
831 | IPV6_MAX_BYTELEN); | |
832 | ||
833 | /* If directory connected set link-local address. */ | |
834 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
835 | remote->sin6.sin6_scope_id, | |
836 | peer->bgp->vrf_id); | |
837 | if (direct) | |
838 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
839 | } else | |
840 | /* Link-local address. */ | |
841 | { | |
842 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
843 | ||
844 | /* If there is no global address. Set link-local | |
845 | address as | |
846 | global. I know this break RFC specification... */ | |
847 | /* In this scenario, the expectation for interop is that | |
848 | * the | |
849 | * network admin would use a route-map to specify the | |
850 | * global | |
851 | * IPv6 nexthop. | |
852 | */ | |
853 | if (!ret) | |
854 | memcpy(&nexthop->v6_global, | |
855 | &local->sin6.sin6_addr, | |
856 | IPV6_MAX_BYTELEN); | |
857 | /* Always set the link-local address */ | |
858 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
859 | IPV6_MAX_BYTELEN); | |
860 | } | |
861 | ||
862 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
863 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
864 | remote->sin6.sin6_scope_id, | |
865 | peer->bgp->vrf_id)) | |
866 | peer->shared_network = 1; | |
867 | else | |
868 | peer->shared_network = 0; | |
869 | } | |
718e3744 | 870 | |
d62a17ae | 871 | /* KAME stack specific treatment. */ |
718e3744 | 872 | #ifdef KAME |
d62a17ae | 873 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
874 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
875 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
876 | } | |
877 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
878 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
879 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
880 | } | |
718e3744 | 881 | #endif /* KAME */ |
e33a4880 | 882 | |
d62a17ae | 883 | /* If we have identified the local interface, there is no error for now. |
884 | */ | |
17cdd31e | 885 | return true; |
718e3744 | 886 | } |
887 | ||
18ee8310 | 888 | static struct in6_addr * |
40381db7 | 889 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 890 | { |
d62a17ae | 891 | struct in6_addr *nexthop = NULL; |
892 | ||
893 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
894 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
895 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 896 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 897 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 898 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 899 | } |
d62a17ae | 900 | |
901 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
902 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
903 | || path->attr->mp_nexthop_len | |
904 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 905 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
906 | if (path->attr->mp_nexthop_prefer_global) { |
907 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 908 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 909 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 910 | } else { |
d62a17ae | 911 | /* Workaround for Cisco's nexthop bug. */ |
912 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 DS |
913 | &path->attr->mp_nexthop_global) |
914 | && path->peer->su_remote->sa.sa_family | |
59a0f1cb | 915 | == AF_INET6) { |
d62a17ae | 916 | nexthop = |
40381db7 | 917 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 918 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 919 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 920 | ->ifindex; |
77e62f2b | 921 | } else { |
40381db7 | 922 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 923 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 924 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 925 | } |
d62a17ae | 926 | } |
927 | } | |
928 | ||
929 | return nexthop; | |
73ac8160 DS |
930 | } |
931 | ||
b8685f9b | 932 | static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p, |
3dc339cd | 933 | struct bgp_path_info *path) |
73ac8160 | 934 | { |
b4cb15c6 DL |
935 | route_map_result_t ret; |
936 | ||
40381db7 DS |
937 | ret = route_map_apply(map, p, RMAP_BGP, path); |
938 | bgp_attr_flush(path->attr); | |
b4cb15c6 DL |
939 | |
940 | if (ret != RMAP_DENYMATCH) | |
3dc339cd | 941 | return true; |
d62a17ae | 942 | |
943 | if (bgp_debug_zebra(p)) { | |
944 | if (p->family == AF_INET) { | |
945 | char buf[2][INET_ADDRSTRLEN]; | |
946 | zlog_debug( | |
8228a9a7 DS |
947 | "Zebra rmap deny: IPv4 route %pFX nexthop %s", |
948 | p, | |
40381db7 | 949 | inet_ntop(AF_INET, &path->attr->nexthop, buf[1], |
d62a17ae | 950 | sizeof(buf[1]))); |
951 | } | |
952 | if (p->family == AF_INET6) { | |
953 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 954 | ifindex_t ifindex; |
955 | struct in6_addr *nexthop; | |
956 | ||
40381db7 | 957 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 958 | zlog_debug( |
8228a9a7 DS |
959 | "Zebra rmap deny: IPv6 route %pFX nexthop %s", |
960 | p, | |
961 | inet_ntop(AF_INET6, nexthop, buf[1], | |
962 | sizeof(buf[1]))); | |
d62a17ae | 963 | } |
964 | } | |
3dc339cd | 965 | return false; |
73ac8160 DS |
966 | } |
967 | ||
b98f7728 PG |
968 | static struct thread *bgp_tm_thread_connect; |
969 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
970 | static bool bgp_tm_chunk_obtained; |
971 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
972 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 973 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
974 | |
975 | static int bgp_zebra_tm_connect(struct thread *t) | |
976 | { | |
977 | struct zclient *zclient; | |
978 | int delay = 10, ret = 0; | |
979 | ||
980 | zclient = THREAD_ARG(t); | |
981 | if (bgp_tm_status_connected && zclient->sock > 0) | |
982 | delay = 60; | |
983 | else { | |
984 | bgp_tm_status_connected = false; | |
985 | ret = tm_table_manager_connect(zclient); | |
986 | } | |
987 | if (ret < 0) { | |
b7cd3069 | 988 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
989 | bgp_tm_status_connected = false; |
990 | } else { | |
991 | if (!bgp_tm_status_connected) | |
992 | zlog_debug("Connecting to table manager. Success"); | |
993 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
994 | if (!bgp_tm_chunk_obtained) { |
995 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
996 | &bgp_tm_min, | |
6818e7e5 | 997 | &bgp_tm_max) >= 0) { |
31c28cd7 | 998 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
999 | /* parse non installed entries */ |
1000 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
1001 | } | |
31c28cd7 | 1002 | } |
b98f7728 PG |
1003 | } |
1004 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
1005 | &bgp_tm_thread_connect); | |
1006 | return 0; | |
1007 | } | |
1008 | ||
6818e7e5 PG |
1009 | bool bgp_zebra_tm_chunk_obtained(void) |
1010 | { | |
1011 | return bgp_tm_chunk_obtained; | |
1012 | } | |
1013 | ||
31c28cd7 PG |
1014 | uint32_t bgp_zebra_tm_get_id(void) |
1015 | { | |
1016 | static int table_id; | |
1017 | ||
1018 | if (!bgp_tm_chunk_obtained) | |
1019 | return ++table_id; | |
1020 | return bgp_tm_min++; | |
1021 | } | |
1022 | ||
6818e7e5 | 1023 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1024 | { |
1025 | int delay = 1; | |
1026 | ||
1027 | /* if already set, do nothing | |
1028 | */ | |
1029 | if (bgp_tm_thread_connect != NULL) | |
1030 | return; | |
1031 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1032 | bgp_tm_chunk_obtained = false; |
1033 | bgp_tm_min = bgp_tm_max = 0; | |
1034 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1035 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1036 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1037 | &bgp_tm_thread_connect); | |
1038 | } | |
1039 | ||
1040 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1041 | uint32_t *start, uint32_t *end) | |
1042 | { | |
1043 | int ret; | |
1044 | ||
1045 | if (!bgp_tm_status_connected) | |
1046 | return -1; | |
1047 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1048 | if (ret < 0) { | |
e50f7cfd | 1049 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1050 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1051 | return -1; |
1052 | } | |
1053 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1054 | chunk_size, *start, *end); | |
1055 | return 0; | |
1056 | } | |
1057 | ||
3dc339cd DA |
1058 | static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1059 | struct in_addr *nexthop, | |
1060 | struct attr *attr, bool is_evpn, | |
1061 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1062 | { |
1063 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1064 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1065 | |
1066 | /* Need to set fields appropriately for EVPN routes imported into | |
1067 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1068 | * connected routes leaked into a VRF. | |
1069 | */ | |
e1e71450 | 1070 | if (is_evpn) { |
77e62f2b | 1071 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
68a02e06 | 1072 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
e1e71450 | 1073 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1074 | } else if (nh_othervrf && | |
77e62f2b | 1075 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
1076 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1077 | api_nh->ifindex = attr->nh_ifindex; | |
1078 | } else | |
1079 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1080 | ||
3dc339cd | 1081 | return true; |
77e62f2b | 1082 | } |
1083 | ||
3dc339cd DA |
1084 | static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1085 | struct in6_addr *nexthop, | |
1086 | ifindex_t ifindex, | |
1087 | struct bgp_path_info *pi, | |
1088 | struct bgp_path_info *best_pi, | |
1089 | bool is_evpn, | |
1090 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1091 | { |
1092 | struct attr *attr; | |
1093 | ||
40381db7 | 1094 | attr = pi->attr; |
e1e71450 | 1095 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1096 | |
e1e71450 | 1097 | if (is_evpn) { |
77e62f2b | 1098 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
68a02e06 | 1099 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
e1e71450 | 1100 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1101 | } else if (nh_othervrf) { | |
77e62f2b | 1102 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1103 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1104 | api_nh->ifindex = attr->nh_ifindex; | |
1105 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1106 | if (ifindex == 0) | |
3dc339cd | 1107 | return false; |
77e62f2b | 1108 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1109 | api_nh->ifindex = ifindex; | |
1110 | } else { | |
1111 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1112 | api_nh->ifindex = 0; | |
1113 | } | |
1114 | } else { | |
1115 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1116 | if (pi == best_pi |
1117 | && attr->mp_nexthop_len | |
1118 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1119 | if (pi->peer->nexthop.ifp) | |
1120 | ifindex = | |
1121 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1122 | if (!ifindex) { |
40381db7 DS |
1123 | if (pi->peer->conf_if) |
1124 | ifindex = pi->peer->ifp->ifindex; | |
1125 | else if (pi->peer->ifname) | |
77e62f2b | 1126 | ifindex = ifname2ifindex( |
40381db7 DS |
1127 | pi->peer->ifname, |
1128 | pi->peer->bgp->vrf_id); | |
1129 | else if (pi->peer->nexthop.ifp) | |
1130 | ifindex = | |
1131 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1132 | } |
1133 | ||
1134 | if (ifindex == 0) | |
3dc339cd | 1135 | return false; |
77e62f2b | 1136 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1137 | api_nh->ifindex = ifindex; | |
1138 | } else { | |
1139 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1140 | api_nh->ifindex = 0; | |
1141 | } | |
1142 | } | |
c2ca3e25 PG |
1143 | if (nexthop) |
1144 | api_nh->gate.ipv6 = *nexthop; | |
77e62f2b | 1145 | |
3dc339cd | 1146 | return true; |
77e62f2b | 1147 | } |
1148 | ||
f7e1c681 | 1149 | static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr, |
1150 | uint64_t tot_bw, uint32_t *nh_weight) | |
4e30bc2b | 1151 | { |
f7e1c681 | 1152 | uint32_t bw; |
1153 | uint64_t tmp; | |
1154 | ||
1155 | bw = attr->link_bw; | |
1156 | /* zero link-bandwidth and link-bandwidth not present are treated | |
1157 | * as the same situation. | |
1158 | */ | |
1159 | if (!bw) { | |
1160 | /* the only situations should be if we're either told | |
1161 | * to skip or use default weight. | |
1162 | */ | |
1163 | if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING) | |
1164 | return false; | |
1165 | *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT; | |
1166 | } else { | |
1167 | tmp = (uint64_t)bw * 100; | |
1168 | *nh_weight = ((uint32_t)(tmp / tot_bw)); | |
1169 | } | |
1170 | ||
1171 | return true; | |
4e30bc2b | 1172 | } |
1173 | ||
9bcb3eef | 1174 | void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p, |
4b7e6066 | 1175 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1176 | safi_t safi) |
718e3744 | 1177 | { |
7cc27d41 | 1178 | struct zapi_route api = { 0 }; |
9913029c | 1179 | struct zapi_nexthop *api_nh; |
2ad4f093 | 1180 | int nh_family; |
a74e593b | 1181 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1182 | int has_valid_label = 0; |
d7c0a89a | 1183 | uint8_t distance; |
d62a17ae | 1184 | struct peer *peer; |
4b7e6066 | 1185 | struct bgp_path_info *mpinfo; |
d7c0a89a | 1186 | uint32_t metric; |
b4cb15c6 | 1187 | struct attr local_attr; |
4b7e6066 DS |
1188 | struct bgp_path_info local_info; |
1189 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1190 | route_tag_t tag; |
1191 | mpls_label_t label; | |
ddb5b488 | 1192 | int nh_othervrf = 0; |
960035b2 | 1193 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1194 | bool is_evpn; |
77e62f2b | 1195 | int nh_updated; |
4e30bc2b | 1196 | bool do_wt_ecmp; |
1197 | uint64_t cum_bw = 0; | |
d62a17ae | 1198 | |
1199 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1200 | * know of this instance. | |
1201 | */ | |
1202 | if (!bgp_install_info_to_zebra(bgp)) | |
1203 | return; | |
1204 | ||
d62a17ae | 1205 | if (bgp->main_zebra_update_hold) |
1206 | return; | |
1207 | ||
960035b2 | 1208 | if (bgp_debug_zebra(p)) |
ba1976db | 1209 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1210 | |
d90b788e | 1211 | if (safi == SAFI_FLOWSPEC) { |
9bcb3eef DS |
1212 | bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi, |
1213 | safi, true); | |
d90b788e A |
1214 | return; |
1215 | } | |
529efa23 | 1216 | |
ddb5b488 PZ |
1217 | /* |
1218 | * vrf leaking support (will have only one nexthop) | |
1219 | */ | |
1220 | if (info->extra && info->extra->bgp_orig) | |
1221 | nh_othervrf = 1; | |
1222 | ||
9913029c | 1223 | /* Make Zebra API structure. */ |
9913029c RW |
1224 | api.vrf_id = bgp->vrf_id; |
1225 | api.type = ZEBRA_ROUTE_BGP; | |
1226 | api.safi = safi; | |
1227 | api.prefix = *p; | |
1228 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1229 | ||
d62a17ae | 1230 | peer = info->peer; |
1231 | ||
ddb5b488 PZ |
1232 | if (info->type == ZEBRA_ROUTE_BGP |
1233 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1234 | ||
1ec90b5e | 1235 | /* Obtain peer from parent */ |
1236 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1237 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1238 | ->peer; | |
ddb5b488 PZ |
1239 | } |
1240 | ||
d62a17ae | 1241 | tag = info->attr->tag; |
1242 | ||
88493076 | 1243 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1244 | is_evpn = is_route_parent_evpn(info); |
1245 | if (is_evpn) | |
90264d64 | 1246 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1247 | |
d62a17ae | 1248 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1249 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1250 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1251 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1252 | } |
a39275d7 | 1253 | |
c8d6f0d6 | 1254 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL) |
d62a17ae | 1255 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) |
892fedb6 | 1256 | || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) |
d62a17ae | 1257 | |
4e8b02f4 | 1258 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
d62a17ae | 1259 | |
951745bd PG |
1260 | if (info->attr->rmap_table_id) { |
1261 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1262 | api.tableid = info->attr->rmap_table_id; | |
1263 | } | |
1264 | ||
ef3e0d04 SM |
1265 | if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) |
1266 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
1267 | ||
2ad4f093 RW |
1268 | /* Metric is currently based on the best-path only */ |
1269 | metric = info->attr->med; | |
4e30bc2b | 1270 | |
1271 | /* Determine if we're doing weighted ECMP or not */ | |
f7e1c681 | 1272 | do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info); |
4e30bc2b | 1273 | if (do_wt_ecmp) |
1274 | cum_bw = bgp_path_info_mpath_cumbw(info); | |
1275 | ||
18ee8310 | 1276 | for (mpinfo = info; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { |
f7e1c681 | 1277 | uint32_t nh_weight; |
1278 | ||
a74e593b RW |
1279 | if (valid_nh_count >= multipath_num) |
1280 | break; | |
1281 | ||
b4cb15c6 | 1282 | *mpinfo_cp = *mpinfo; |
f7e1c681 | 1283 | nh_weight = 0; |
b4cb15c6 | 1284 | |
d0d695f4 RW |
1285 | /* Get nexthop address-family */ |
1286 | if (p->family == AF_INET | |
1287 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1288 | nh_family = AF_INET; | |
1289 | else if (p->family == AF_INET6 | |
1290 | || (p->family == AF_INET | |
1291 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1292 | nh_family = AF_INET6; | |
1293 | else | |
1294 | continue; | |
1295 | ||
f7e1c681 | 1296 | /* If processing for weighted ECMP, determine the next hop's |
1297 | * weight. Based on user setting, we may skip the next hop | |
1298 | * in some situations. | |
1299 | */ | |
1300 | if (do_wt_ecmp) { | |
1301 | if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr, | |
1302 | cum_bw, &nh_weight)) | |
1303 | continue; | |
1304 | } | |
1374aec9 | 1305 | api_nh = &api.nexthops[valid_nh_count]; |
ef3e0d04 SM |
1306 | |
1307 | if (CHECK_FLAG(info->attr->flag, | |
1308 | ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) | |
1309 | api_nh->srte_color = info->attr->srte_color; | |
1310 | ||
2ad4f093 | 1311 | if (nh_family == AF_INET) { |
ddb5b488 | 1312 | if (bgp_debug_zebra(&api.prefix)) { |
ddb5b488 PZ |
1313 | if (mpinfo->extra) { |
1314 | zlog_debug( | |
1315 | "%s: p=%s, bgp_is_valid_label: %d", | |
1316 | __func__, buf_prefix, | |
1317 | bgp_is_valid_label( | |
1318 | &mpinfo->extra | |
1319 | ->label[0])); | |
1320 | } else { | |
1321 | zlog_debug( | |
1322 | "%s: p=%s, extra is NULL, no label", | |
1323 | __func__, buf_prefix); | |
1324 | } | |
1325 | } | |
1326 | ||
6c0a6053 | 1327 | if (bgp->table_map[afi][safi].name) { |
d62a17ae | 1328 | /* Copy info and attributes, so the route-map |
b4cb15c6 DL |
1329 | apply doesn't modify the BGP route info. */ |
1330 | local_attr = *mpinfo->attr; | |
1331 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 | 1332 | } |
b4cb15c6 | 1333 | |
ddb5b488 | 1334 | if (bgp->table_map[afi][safi].name) { |
b4cb15c6 | 1335 | if (!bgp_table_map_apply( |
d62a17ae | 1336 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1337 | mpinfo_cp)) |
1338 | continue; | |
1339 | ||
1340 | /* metric/tag is only allowed to be | |
1341 | * overridden on 1st nexthop */ | |
1342 | if (mpinfo == info) { | |
1343 | metric = mpinfo_cp->attr->med; | |
1344 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1345 | } |
b4cb15c6 | 1346 | } |
d62a17ae | 1347 | |
77e62f2b | 1348 | nh_updated = update_ipv4nh_for_route_install( |
1349 | nh_othervrf, | |
e1e71450 | 1350 | nh_othervrf ? |
1351 | info->extra->bgp_orig : bgp, | |
77e62f2b | 1352 | &mpinfo_cp->attr->nexthop, |
1353 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1354 | } else { |
f220da99 | 1355 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1356 | struct in6_addr *nexthop; |
9913029c | 1357 | |
6c0a6053 | 1358 | if (bgp->table_map[afi][safi].name) { |
ddb5b488 PZ |
1359 | /* Copy info and attributes, so the route-map |
1360 | apply doesn't modify the BGP route info. */ | |
1361 | local_attr = *mpinfo->attr; | |
1362 | mpinfo_cp->attr = &local_attr; | |
ddb5b488 PZ |
1363 | } |
1364 | ||
d62a17ae | 1365 | if (bgp->table_map[afi][safi].name) { |
1366 | /* Copy info and attributes, so the route-map | |
b4cb15c6 DL |
1367 | apply doesn't modify the BGP route info. */ |
1368 | local_attr = *mpinfo->attr; | |
1369 | mpinfo_cp->attr = &local_attr; | |
1370 | ||
1371 | if (!bgp_table_map_apply( | |
d62a17ae | 1372 | bgp->table_map[afi][safi].map, p, |
b4cb15c6 DL |
1373 | mpinfo_cp)) |
1374 | continue; | |
1375 | ||
1376 | /* metric/tag is only allowed to be | |
1377 | * overridden on 1st nexthop */ | |
1378 | if (mpinfo == info) { | |
1379 | metric = mpinfo_cp->attr->med; | |
1380 | tag = mpinfo_cp->attr->tag; | |
d62a17ae | 1381 | } |
b4cb15c6 | 1382 | } |
18ee8310 DS |
1383 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1384 | &ifindex); | |
77e62f2b | 1385 | nh_updated = update_ipv6nh_for_route_install( |
e1e71450 | 1386 | nh_othervrf, nh_othervrf ? |
1387 | info->extra->bgp_orig : bgp, | |
1388 | nexthop, ifindex, | |
77e62f2b | 1389 | mpinfo, info, is_evpn, api_nh); |
2ad4f093 | 1390 | } |
d62a17ae | 1391 | |
77e62f2b | 1392 | /* Did we get proper nexthop info to update zebra? */ |
1393 | if (!nh_updated) | |
1394 | continue; | |
1395 | ||
a4d82a8a PZ |
1396 | if (mpinfo->extra |
1397 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1398 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1399 | has_valid_label = 1; |
b57ba6d2 | 1400 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1401 | |
68a02e06 MS |
1402 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
1403 | ||
2ad4f093 RW |
1404 | api_nh->label_num = 1; |
1405 | api_nh->labels[0] = label; | |
d62a17ae | 1406 | } |
22e63104 | 1407 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1408 | sizeof(struct ethaddr)); | |
f7e1c681 | 1409 | api_nh->weight = nh_weight; |
4e30bc2b | 1410 | |
2ad4f093 RW |
1411 | valid_nh_count++; |
1412 | } | |
d62a17ae | 1413 | |
5cc347c4 DS |
1414 | /* |
1415 | * When we create an aggregate route we must also | |
1416 | * install a Null0 route in the RIB, so overwrite | |
1417 | * what was written into api with a blackhole route | |
1418 | */ | |
1419 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1420 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1421 | else | |
2ad4f093 | 1422 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1423 | |
2ad4f093 RW |
1424 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1425 | api.metric = metric; | |
d62a17ae | 1426 | |
2ad4f093 RW |
1427 | if (tag) { |
1428 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1429 | api.tag = tag; | |
1430 | } | |
d62a17ae | 1431 | |
2ad4f093 RW |
1432 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1433 | if (distance) { | |
1434 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1435 | api.distance = distance; | |
1436 | } | |
d62a17ae | 1437 | |
2ad4f093 RW |
1438 | if (bgp_debug_zebra(p)) { |
1439 | char prefix_buf[PREFIX_STRLEN]; | |
1440 | char nh_buf[INET6_ADDRSTRLEN]; | |
d8744f72 CS |
1441 | char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'}; |
1442 | char buf1[ETHER_ADDR_STRLEN]; | |
2ad4f093 RW |
1443 | char label_buf[20]; |
1444 | int i; | |
1445 | ||
1446 | prefix2str(&api.prefix, prefix_buf, sizeof(prefix_buf)); | |
1447 | zlog_debug("Tx route %s VRF %u %s metric %u tag %" ROUTE_TAG_PRI | |
1448 | " count %d", | |
1449 | valid_nh_count ? "add" : "delete", bgp->vrf_id, | |
1450 | prefix_buf, api.metric, api.tag, api.nexthop_num); | |
1451 | for (i = 0; i < api.nexthop_num; i++) { | |
1452 | api_nh = &api.nexthops[i]; | |
1453 | ||
1ee069db CS |
1454 | switch (api_nh->type) { |
1455 | case NEXTHOP_TYPE_IFINDEX: | |
77e62f2b | 1456 | nh_buf[0] = '\0'; |
1ee069db CS |
1457 | break; |
1458 | case NEXTHOP_TYPE_IPV4: | |
1459 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1460 | nh_family = AF_INET; | |
77e62f2b | 1461 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1462 | sizeof(nh_buf)); | |
1ee069db CS |
1463 | break; |
1464 | case NEXTHOP_TYPE_IPV6: | |
1465 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1466 | nh_family = AF_INET6; | |
1467 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1468 | sizeof(nh_buf)); | |
1469 | break; | |
1470 | case NEXTHOP_TYPE_BLACKHOLE: | |
1471 | strlcpy(nh_buf, "blackhole", sizeof(nh_buf)); | |
1472 | break; | |
1473 | default: | |
1474 | /* Note: add new nexthop case */ | |
1475 | assert(0); | |
1476 | break; | |
77e62f2b | 1477 | } |
2ad4f093 RW |
1478 | |
1479 | label_buf[0] = '\0'; | |
d8744f72 | 1480 | eth_buf[0] = '\0'; |
a4d82a8a PZ |
1481 | if (has_valid_label |
1482 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
a7799788 CS |
1483 | snprintf(label_buf, sizeof(label_buf), |
1484 | "label %u", api_nh->labels[0]); | |
d8744f72 CS |
1485 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE) |
1486 | && !is_zero_mac(&api_nh->rmac)) | |
a7799788 CS |
1487 | snprintf(eth_buf, sizeof(eth_buf), " RMAC %s", |
1488 | prefix_mac2str(&api_nh->rmac, | |
1489 | buf1, sizeof(buf1))); | |
4e30bc2b | 1490 | zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s", |
77e62f2b | 1491 | i + 1, nh_buf, api_nh->ifindex, |
4e30bc2b | 1492 | api_nh->vrf_id, api_nh->weight, |
1493 | label_buf, eth_buf); | |
d62a17ae | 1494 | } |
1495 | } | |
2ad4f093 | 1496 | |
960035b2 PZ |
1497 | if (bgp_debug_zebra(p)) { |
1498 | int recursion_flag = 0; | |
1499 | ||
1500 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION)) | |
1501 | recursion_flag = 1; | |
1502 | ||
1503 | zlog_debug("%s: %s: announcing to zebra (recursion %sset)", | |
1504 | __func__, buf_prefix, | |
1505 | (recursion_flag ? "" : "NOT ")); | |
1506 | } | |
2ad4f093 RW |
1507 | zclient_route_send(valid_nh_count ? ZEBRA_ROUTE_ADD |
1508 | : ZEBRA_ROUTE_DELETE, | |
1509 | zclient, &api); | |
718e3744 | 1510 | } |
1511 | ||
73ac8160 | 1512 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1513 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1514 | { |
9bcb3eef | 1515 | struct bgp_dest *dest; |
d62a17ae | 1516 | struct bgp_table *table; |
40381db7 | 1517 | struct bgp_path_info *pi; |
d62a17ae | 1518 | |
1519 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1520 | * know of this instance. | |
1521 | */ | |
1522 | if (!bgp_install_info_to_zebra(bgp)) | |
1523 | return; | |
1524 | ||
1525 | table = bgp->rib[afi][safi]; | |
1526 | if (!table) | |
1527 | return; | |
1528 | ||
9bcb3eef DS |
1529 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) |
1530 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
40381db7 | 1531 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1532 | |
40381db7 DS |
1533 | (pi->type == ZEBRA_ROUTE_BGP |
1534 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1535 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1536 | |
9bcb3eef DS |
1537 | bgp_zebra_announce(dest, |
1538 | bgp_dest_get_prefix(dest), | |
b54892e0 | 1539 | pi, bgp, afi, safi); |
73ac8160 DS |
1540 | } |
1541 | ||
c163f297 DS |
1542 | /* Announce routes of any bgp subtype of a table to zebra */ |
1543 | void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi, | |
1544 | safi_t safi) | |
1545 | { | |
1546 | struct bgp_dest *dest; | |
1547 | struct bgp_table *table; | |
1548 | struct bgp_path_info *pi; | |
1549 | ||
1550 | if (!bgp_install_info_to_zebra(bgp)) | |
1551 | return; | |
1552 | ||
1553 | table = bgp->rib[afi][safi]; | |
1554 | if (!table) | |
1555 | return; | |
1556 | ||
1557 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) | |
1558 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
1559 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && | |
1560 | pi->type == ZEBRA_ROUTE_BGP) | |
1561 | bgp_zebra_announce(dest, | |
1562 | bgp_dest_get_prefix(dest), | |
1563 | pi, bgp, afi, safi); | |
1564 | } | |
1565 | ||
5a1ae2c2 | 1566 | void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1567 | struct bgp *bgp, safi_t safi) |
718e3744 | 1568 | { |
2ad4f093 | 1569 | struct zapi_route api; |
f7df1907 | 1570 | struct peer *peer; |
ddb5b488 | 1571 | |
d62a17ae | 1572 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1573 | * know of this instance. | |
1574 | */ | |
568e10ca | 1575 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1576 | return; |
1577 | ||
f7df1907 PG |
1578 | if (safi == SAFI_FLOWSPEC) { |
1579 | peer = info->peer; | |
d90b788e A |
1580 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1581 | return; | |
f7df1907 | 1582 | } |
529efa23 | 1583 | |
2ad4f093 | 1584 | memset(&api, 0, sizeof(api)); |
568e10ca | 1585 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1586 | api.type = ZEBRA_ROUTE_BGP; |
1587 | api.safi = safi; | |
1588 | api.prefix = *p; | |
d62a17ae | 1589 | |
1276ce38 PG |
1590 | if (info->attr->rmap_table_id) { |
1591 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1592 | api.tableid = info->attr->rmap_table_id; | |
1593 | } | |
1594 | ||
88493076 | 1595 | /* If the route's source is EVPN, flag as such. */ |
1596 | if (is_route_parent_evpn(info)) | |
90264d64 | 1597 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1598 | |
2ad4f093 RW |
1599 | if (bgp_debug_zebra(p)) { |
1600 | char buf[PREFIX_STRLEN]; | |
d62a17ae | 1601 | |
2ad4f093 | 1602 | prefix2str(&api.prefix, buf, sizeof(buf)); |
568e10ca | 1603 | zlog_debug("Tx route delete VRF %u %s", bgp->vrf_id, buf); |
d62a17ae | 1604 | } |
d62a17ae | 1605 | |
2ad4f093 | 1606 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1607 | } |
56c1f7d8 | 1608 | |
c163f297 DS |
1609 | /* Withdraw all entries in a BGP instances RIB table from Zebra */ |
1610 | void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi) | |
1611 | { | |
1612 | struct bgp_dest *dest; | |
1613 | struct bgp_table *table; | |
1614 | struct bgp_path_info *pi; | |
1615 | ||
1616 | if (!bgp_install_info_to_zebra(bgp)) | |
1617 | return; | |
1618 | ||
1619 | table = bgp->rib[afi][safi]; | |
1620 | if (!table) | |
1621 | return; | |
1622 | ||
1623 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) { | |
1624 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
1625 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) | |
1626 | && (pi->type == ZEBRA_ROUTE_BGP)) | |
1627 | bgp_zebra_withdraw(bgp_dest_get_prefix(dest), | |
1628 | pi, bgp, safi); | |
1629 | } | |
1630 | } | |
1631 | } | |
1632 | ||
d7c0a89a QY |
1633 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1634 | unsigned short instance) | |
7c8ff89e | 1635 | { |
d62a17ae | 1636 | struct list *red_list; |
1637 | struct listnode *node; | |
1638 | struct bgp_redist *red; | |
7c8ff89e | 1639 | |
d62a17ae | 1640 | red_list = bgp->redist[afi][type]; |
1641 | if (!red_list) | |
1642 | return (NULL); | |
7c8ff89e | 1643 | |
d62a17ae | 1644 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1645 | if (red->instance == instance) | |
1646 | return red; | |
7c8ff89e | 1647 | |
d62a17ae | 1648 | return NULL; |
7c8ff89e DS |
1649 | } |
1650 | ||
d7c0a89a QY |
1651 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1652 | unsigned short instance) | |
7c8ff89e | 1653 | { |
d62a17ae | 1654 | struct list *red_list; |
1655 | struct bgp_redist *red; | |
7c8ff89e | 1656 | |
d62a17ae | 1657 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1658 | if (red) | |
1659 | return red; | |
7c8ff89e | 1660 | |
d62a17ae | 1661 | if (!bgp->redist[afi][type]) |
1662 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1663 | |
d62a17ae | 1664 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1665 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1666 | red->instance = instance; |
7c8ff89e | 1667 | |
d62a17ae | 1668 | listnode_add(red_list, red); |
7c8ff89e | 1669 | |
d62a17ae | 1670 | return red; |
7c8ff89e DS |
1671 | } |
1672 | ||
d7c0a89a QY |
1673 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1674 | unsigned short instance) | |
7c8ff89e | 1675 | { |
d62a17ae | 1676 | struct bgp_redist *red; |
1677 | ||
1678 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1679 | ||
1680 | if (red) { | |
1681 | listnode_delete(bgp->redist[afi][type], red); | |
1682 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1683 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1684 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1685 | } |
7c8ff89e | 1686 | } |
6b0655a2 | 1687 | |
718e3744 | 1688 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1689 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1690 | unsigned short instance, bool changed) |
718e3744 | 1691 | { |
e923dd62 | 1692 | /* If redistribute options are changed call |
1693 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1694 | * the routes | |
1695 | */ | |
1696 | if (changed) | |
1697 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1698 | |
d62a17ae | 1699 | /* Return if already redistribute flag is set. */ |
1700 | if (instance) { | |
1701 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1702 | instance)) | |
1703 | return CMD_WARNING; | |
718e3744 | 1704 | |
d62a17ae | 1705 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1706 | } else { | |
1707 | if (vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1708 | return CMD_WARNING; | |
7076bb2f | 1709 | |
49e5a4a0 | 1710 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1711 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1712 | vnc_export_bgp_enable( |
1713 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1714 | } | |
65efcfce LB |
1715 | #endif |
1716 | ||
d62a17ae | 1717 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1718 | } | |
718e3744 | 1719 | |
ea12cf11 DS |
1720 | /* |
1721 | * Don't try to register if we're not connected to Zebra or Zebra | |
1722 | * doesn't know of this instance. | |
1723 | * | |
1724 | * When we come up later well resend if needed. | |
d62a17ae | 1725 | */ |
1726 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1727 | return CMD_SUCCESS; |
a39275d7 | 1728 | |
d62a17ae | 1729 | if (BGP_DEBUG(zebra, ZEBRA)) |
1730 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1731 | bgp->vrf_id, afi, zebra_route_string(type), | |
1732 | instance); | |
518f0eb1 | 1733 | |
d62a17ae | 1734 | /* Send distribute add message to zebra. */ |
1735 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1736 | instance, bgp->vrf_id); | |
718e3744 | 1737 | |
d62a17ae | 1738 | return CMD_SUCCESS; |
718e3744 | 1739 | } |
1740 | ||
d62a17ae | 1741 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1742 | unsigned short instance) |
518f0eb1 | 1743 | { |
d62a17ae | 1744 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1745 | * know of this instance. | |
1746 | */ | |
1747 | if (!bgp_install_info_to_zebra(bgp)) | |
1748 | return -1; | |
1749 | ||
1750 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1751 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1752 | bgp->vrf_id, afi, zebra_route_string(type), | |
1753 | instance); | |
1754 | ||
1755 | /* Send distribute add message to zebra. */ | |
1756 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1757 | instance, bgp->vrf_id); | |
1758 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1759 | instance, bgp->vrf_id); | |
1760 | ||
1761 | return 0; | |
518f0eb1 DS |
1762 | } |
1763 | ||
718e3744 | 1764 | /* Redistribute with route-map specification. */ |
3dc339cd DA |
1765 | bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1766 | struct route_map *route_map) | |
718e3744 | 1767 | { |
d62a17ae | 1768 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
3dc339cd | 1769 | return false; |
718e3744 | 1770 | |
0a22ddfb | 1771 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1772 | /* Decrement the count for existing routemap and |
1773 | * increment the count for new route map. | |
1774 | */ | |
1775 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1776 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1777 | red->rmap.map = route_map; |
b4897fa5 | 1778 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1779 | |
3dc339cd | 1780 | return true; |
718e3744 | 1781 | } |
1782 | ||
1783 | /* Redistribute with metric specification. */ | |
3dc339cd DA |
1784 | bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
1785 | afi_t afi, int type, uint32_t metric) | |
718e3744 | 1786 | { |
9bcb3eef | 1787 | struct bgp_dest *dest; |
40381db7 | 1788 | struct bgp_path_info *pi; |
d62a17ae | 1789 | |
1790 | if (red->redist_metric_flag && red->redist_metric == metric) | |
3dc339cd | 1791 | return false; |
d62a17ae | 1792 | |
1793 | red->redist_metric_flag = 1; | |
1794 | red->redist_metric = metric; | |
1795 | ||
9bcb3eef DS |
1796 | for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest; |
1797 | dest = bgp_route_next(dest)) { | |
1798 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
40381db7 DS |
1799 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1800 | && pi->type == type | |
1801 | && pi->instance == red->instance) { | |
d62a17ae | 1802 | struct attr *old_attr; |
1803 | struct attr new_attr; | |
1804 | ||
6f4f49b2 | 1805 | new_attr = *pi->attr; |
d62a17ae | 1806 | new_attr.med = red->redist_metric; |
40381db7 DS |
1807 | old_attr = pi->attr; |
1808 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1809 | bgp_attr_unintern(&old_attr); |
1810 | ||
9bcb3eef | 1811 | bgp_path_info_set_flag(dest, pi, |
18ee8310 | 1812 | BGP_PATH_ATTR_CHANGED); |
9bcb3eef | 1813 | bgp_process(bgp, dest, afi, SAFI_UNICAST); |
d62a17ae | 1814 | } |
1815 | } | |
1816 | } | |
1817 | ||
3dc339cd | 1818 | return true; |
718e3744 | 1819 | } |
1820 | ||
1821 | /* Unset redistribution. */ | |
d62a17ae | 1822 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1823 | unsigned short instance) |
718e3744 | 1824 | { |
d62a17ae | 1825 | struct bgp_redist *red; |
1826 | ||
1827 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1828 | if (!red) | |
1829 | return CMD_SUCCESS; | |
1830 | ||
1831 | /* Return if zebra connection is disabled. */ | |
1832 | if (instance) { | |
1833 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1834 | instance)) | |
1835 | return CMD_WARNING; | |
1836 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1837 | } else { | |
1838 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1839 | return CMD_WARNING; | |
1840 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1841 | } | |
718e3744 | 1842 | |
65efcfce | 1843 | |
d62a17ae | 1844 | if (bgp_install_info_to_zebra(bgp)) { |
1845 | /* Send distribute delete message to zebra. */ | |
1846 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1847 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1848 | bgp->vrf_id, afi, zebra_route_string(type), | |
1849 | instance); | |
1850 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1851 | type, instance, bgp->vrf_id); | |
1852 | } | |
1853 | ||
1854 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1855 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1856 | ||
1857 | return CMD_SUCCESS; | |
718e3744 | 1858 | } |
1859 | ||
6aeb9e78 | 1860 | /* Unset redistribution. */ |
d62a17ae | 1861 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1862 | unsigned short instance) |
6aeb9e78 | 1863 | { |
d62a17ae | 1864 | struct bgp_redist *red; |
6aeb9e78 | 1865 | |
ddb5b488 PZ |
1866 | /* |
1867 | * vnc and vpn->vrf checks must be before red check because | |
1868 | * they operate within bgpd irrespective of zebra connection | |
1869 | * status. red lookup fails if there is no zebra connection. | |
1870 | */ | |
49e5a4a0 | 1871 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1872 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
1873 | vnc_export_bgp_disable(bgp, afi); |
1874 | } | |
1875 | #endif | |
ddb5b488 | 1876 | |
d62a17ae | 1877 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1878 | if (!red) | |
1879 | return CMD_SUCCESS; | |
6aeb9e78 | 1880 | |
d62a17ae | 1881 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1882 | |
d62a17ae | 1883 | /* Unset route-map. */ |
0a22ddfb | 1884 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1885 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 1886 | red->rmap.map = NULL; |
6aeb9e78 | 1887 | |
d62a17ae | 1888 | /* Unset metric. */ |
1889 | red->redist_metric_flag = 0; | |
1890 | red->redist_metric = 0; | |
6aeb9e78 | 1891 | |
d62a17ae | 1892 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1893 | |
d62a17ae | 1894 | return CMD_SUCCESS; |
6aeb9e78 DS |
1895 | } |
1896 | ||
fc2408ec DS |
1897 | void bgp_redistribute_redo(struct bgp *bgp) |
1898 | { | |
1899 | afi_t afi; | |
1900 | int i; | |
1901 | struct list *red_list; | |
1902 | struct listnode *node; | |
1903 | struct bgp_redist *red; | |
1904 | ||
1905 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
1906 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
1907 | ||
1908 | red_list = bgp->redist[afi][i]; | |
1909 | if (!red_list) | |
1910 | continue; | |
1911 | ||
1912 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1913 | bgp_redistribute_resend(bgp, afi, i, | |
1914 | red->instance); | |
1915 | } | |
1916 | } | |
1917 | } | |
1918 | } | |
1919 | ||
401d56cc DS |
1920 | /* Unset redistribute vrf bitmap during triggers like |
1921 | restart networking or delete VRFs */ | |
1922 | void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) | |
eb117f29 | 1923 | { |
d62a17ae | 1924 | int i; |
1925 | afi_t afi; | |
1926 | ||
1927 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1928 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
7e20406f | 1929 | if (vrf_bitmap_check(zclient->redist[afi][i], |
401d56cc | 1930 | old_vrf_id)) |
d62a17ae | 1931 | vrf_bitmap_unset(zclient->redist[afi][i], |
1932 | old_vrf_id); | |
d62a17ae | 1933 | return; |
eb117f29 SK |
1934 | } |
1935 | ||
d62a17ae | 1936 | void bgp_zclient_reset(void) |
718e3744 | 1937 | { |
d62a17ae | 1938 | zclient_reset(zclient); |
718e3744 | 1939 | } |
1940 | ||
ad4cbda1 | 1941 | /* Register this instance with Zebra. Invoked upon connect (for |
1942 | * default instance) and when other VRFs are learnt (or created and | |
1943 | * already learnt). | |
1944 | */ | |
d62a17ae | 1945 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1946 | { |
d62a17ae | 1947 | /* Don't try to register if we're not connected to Zebra */ |
1948 | if (!zclient || zclient->sock < 0) | |
1949 | return; | |
ad4cbda1 | 1950 | |
d62a17ae | 1951 | if (BGP_DEBUG(zebra, ZEBRA)) |
1952 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1953 | |
d62a17ae | 1954 | /* Register for router-id, interfaces, redistributed routes. */ |
1955 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1956 | |
e2f3a930 T |
1957 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
1958 | if (bgp->advertise_all_vni) | |
d62a17ae | 1959 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
1960 | |
1961 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 1962 | } |
1963 | ||
1964 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1965 | * being deleted (default or VRF) and it is already registered. | |
1966 | */ | |
d62a17ae | 1967 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1968 | { |
d62a17ae | 1969 | /* Don't try to deregister if we're not connected to Zebra */ |
1970 | if (zclient->sock < 0) | |
1971 | return; | |
ad4cbda1 | 1972 | |
d62a17ae | 1973 | if (BGP_DEBUG(zebra, ZEBRA)) |
1974 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1975 | |
e2f3a930 T |
1976 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
1977 | if (bgp->advertise_all_vni) | |
d62a17ae | 1978 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1979 | |
d62a17ae | 1980 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1981 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1982 | } |
1983 | ||
d62a17ae | 1984 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1985 | { |
d62a17ae | 1986 | int ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1987 | |
d62a17ae | 1988 | /* Don't try to initiate if we're not connected to Zebra */ |
1989 | if (zclient->sock < 0) | |
1990 | return; | |
4a04e5f7 | 1991 | |
d62a17ae | 1992 | if (BGP_DEBUG(zebra, ZEBRA)) |
1993 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1994 | peer->host); | |
4a04e5f7 | 1995 | |
b3a3290e DS |
1996 | /* |
1997 | * If unnumbered peer (peer->ifp) call thru zapi to start RAs. | |
1998 | * If we don't have an ifp pointer, call function to find the | |
1999 | * ifps for a numbered enhe peer to turn RAs on. | |
2000 | */ | |
2001 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2002 | peer->ifp, 1, ra_interval) | |
2003 | : bgp_nht_reg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2004 | } |
2005 | ||
d62a17ae | 2006 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 2007 | { |
d62a17ae | 2008 | /* Don't try to terminate if we're not connected to Zebra */ |
2009 | if (zclient->sock < 0) | |
2010 | return; | |
4a04e5f7 | 2011 | |
d62a17ae | 2012 | if (BGP_DEBUG(zebra, ZEBRA)) |
2013 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
2014 | peer->host); | |
4a04e5f7 | 2015 | |
b3a3290e DS |
2016 | /* |
2017 | * If unnumbered peer (peer->ifp) call thru zapi to stop RAs. | |
2018 | * If we don't have an ifp pointer, call function to find the | |
2019 | * ifps for a numbered enhe peer to turn RAs off. | |
2020 | */ | |
2021 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2022 | peer->ifp, 0, 0) | |
2023 | : bgp_nht_dereg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2024 | } |
2025 | ||
31310b25 MK |
2026 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
2027 | { | |
2028 | struct stream *s = NULL; | |
2029 | ||
2030 | /* Check socket. */ | |
2031 | if (!zclient || zclient->sock < 0) | |
2032 | return 0; | |
2033 | ||
2034 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2035 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2036 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2037 | zlog_debug( |
2038 | "%s: No zebra instance to talk to, cannot advertise subnet", | |
2039 | __func__); | |
31310b25 | 2040 | return 0; |
bb4ef1ae | 2041 | } |
31310b25 MK |
2042 | |
2043 | s = zclient->obuf; | |
2044 | stream_reset(s); | |
2045 | ||
2046 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
2047 | stream_putc(s, advertise); | |
2048 | stream_put3(s, vni); | |
2049 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2050 | ||
2051 | return zclient_send_message(zclient); | |
2052 | } | |
2053 | ||
a8016157 CS |
2054 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
2055 | { | |
2056 | struct stream *s = NULL; | |
2057 | ||
2058 | /* Check socket. */ | |
2059 | if (!zclient || zclient->sock < 0) | |
2060 | return 0; | |
2061 | ||
2062 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2063 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2064 | return 0; | |
2065 | ||
2066 | s = zclient->obuf; | |
2067 | stream_reset(s); | |
2068 | ||
2069 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
2070 | stream_putc(s, advertise); | |
2071 | stream_putl(s, vni); | |
2072 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2073 | ||
2074 | return zclient_send_message(zclient); | |
2075 | } | |
2076 | ||
1a98c087 MK |
2077 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
2078 | { | |
2079 | struct stream *s = NULL; | |
2080 | ||
2081 | /* Check socket. */ | |
2082 | if (!zclient || zclient->sock < 0) | |
2083 | return 0; | |
2084 | ||
2085 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2086 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2087 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2088 | zlog_debug( |
2089 | "%s: No zebra instance to talk to, not installing gw_macip", | |
2090 | __func__); | |
1a98c087 | 2091 | return 0; |
bb4ef1ae | 2092 | } |
1a98c087 MK |
2093 | |
2094 | s = zclient->obuf; | |
2095 | stream_reset(s); | |
2096 | ||
2097 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
2098 | stream_putc(s, advertise); | |
cc6d5476 | 2099 | stream_putl(s, vni); |
1a98c087 MK |
2100 | stream_putw_at(s, 0, stream_get_endp(s)); |
2101 | ||
2102 | return zclient_send_message(zclient); | |
2103 | } | |
2104 | ||
fd069644 DS |
2105 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
2106 | enum vxlan_flood_control flood_ctrl) | |
2107 | { | |
2108 | struct stream *s; | |
2109 | ||
2110 | /* Check socket. */ | |
2111 | if (!zclient || zclient->sock < 0) | |
2112 | return 0; | |
2113 | ||
2114 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2115 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2116 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2117 | zlog_debug( |
2118 | "%s: No zebra instance to talk to, not installing all vni", | |
2119 | __func__); | |
fd069644 | 2120 | return 0; |
bb4ef1ae | 2121 | } |
fd069644 DS |
2122 | |
2123 | s = zclient->obuf; | |
2124 | stream_reset(s); | |
2125 | ||
2126 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2127 | stream_putc(s, flood_ctrl); | |
2128 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2129 | ||
2130 | return zclient_send_message(zclient); | |
2131 | } | |
2132 | ||
d62a17ae | 2133 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2134 | { |
d62a17ae | 2135 | struct stream *s; |
7724c0a1 | 2136 | |
d62a17ae | 2137 | /* Check socket. */ |
2138 | if (!zclient || zclient->sock < 0) | |
2139 | return 0; | |
7724c0a1 | 2140 | |
d62a17ae | 2141 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2142 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2143 | return 0; | |
7724c0a1 | 2144 | |
d62a17ae | 2145 | s = zclient->obuf; |
2146 | stream_reset(s); | |
7724c0a1 | 2147 | |
d62a17ae | 2148 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2149 | stream_putc(s, advertise); | |
fbac9605 DS |
2150 | /* Also inform current BUM handling setting. This is really |
2151 | * relevant only when 'advertise' is set. | |
2152 | */ | |
fd069644 | 2153 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2154 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2155 | |
d62a17ae | 2156 | return zclient_send_message(zclient); |
7724c0a1 | 2157 | } |
2158 | ||
0b9d9cd0 CS |
2159 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2160 | { | |
2161 | struct stream *s; | |
2162 | ||
2163 | /* Check socket. */ | |
2164 | if (!zclient || zclient->sock < 0) | |
2165 | return 0; | |
2166 | ||
2167 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2168 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2169 | return 0; | |
2170 | ||
2171 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2172 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2173 | bgp->evpn_info->dup_addr_detect ? | |
2174 | "enable" : "disable", | |
2175 | bgp->evpn_info->dad_max_moves, | |
2176 | bgp->evpn_info->dad_time, | |
2177 | bgp->evpn_info->dad_freeze ? | |
2178 | "enable" : "disable", | |
2179 | bgp->evpn_info->dad_freeze_time); | |
2180 | ||
2181 | s = zclient->obuf; | |
2182 | stream_reset(s); | |
2183 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2184 | bgp->vrf_id); | |
2185 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2186 | stream_putl(s, bgp->evpn_info->dad_time); | |
2187 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2188 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2189 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2190 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2191 | ||
2192 | return zclient_send_message(zclient); | |
2193 | } | |
2194 | ||
121f9dee | 2195 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2196 | { |
2197 | uint32_t seqno, priority, unique; | |
2198 | enum zapi_rule_notify_owner note; | |
2199 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2200 | struct bgp_pbr_rule *bgp_pbr = NULL; |
58a1d249 | 2201 | char ifname[INTERFACE_NAMSIZ + 1]; |
30d50e6d PG |
2202 | |
2203 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
58a1d249 | 2204 | ifname, ¬e)) |
30d50e6d PG |
2205 | return -1; |
2206 | ||
70eabd12 | 2207 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2208 | if (!bgp_pbra) { |
ffee150e PG |
2209 | /* look in bgp pbr rule */ |
2210 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2211 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2212 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2213 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
15569c58 | 2214 | __func__, unique); |
ffee150e PG |
2215 | return 0; |
2216 | } | |
30d50e6d PG |
2217 | } |
2218 | ||
2219 | switch (note) { | |
2220 | case ZAPI_RULE_FAIL_INSTALL: | |
2221 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2222 | zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__); |
ffee150e PG |
2223 | if (bgp_pbra) { |
2224 | bgp_pbra->installed = false; | |
2225 | bgp_pbra->install_in_progress = false; | |
2226 | } else { | |
2227 | bgp_pbr->installed = false; | |
2228 | bgp_pbr->install_in_progress = false; | |
2229 | } | |
30d50e6d PG |
2230 | break; |
2231 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2232 | if (bgp_pbra) { |
2233 | bgp_pbra->installed = true; | |
2234 | bgp_pbra->install_in_progress = false; | |
2235 | } else { | |
ce3c0614 PG |
2236 | struct bgp_path_info *path; |
2237 | struct bgp_path_info_extra *extra; | |
2238 | ||
ffee150e PG |
2239 | bgp_pbr->installed = true; |
2240 | bgp_pbr->install_in_progress = false; | |
2241 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2242 | /* link bgp_info to bgp_pbr */ |
2243 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2244 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2245 | listnode_add_force(&extra->bgp_fs_iprule, |
2246 | bgp_pbr); | |
ffee150e | 2247 | } |
30d50e6d | 2248 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 | 2249 | zlog_debug("%s: Received RULE_INSTALLED", __func__); |
30d50e6d | 2250 | break; |
f18a08f5 | 2251 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2252 | case ZAPI_RULE_REMOVED: |
2253 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2254 | zlog_debug("%s: Received RULE REMOVED", __func__); |
30d50e6d PG |
2255 | break; |
2256 | } | |
2257 | ||
2258 | return 0; | |
2259 | } | |
2260 | ||
121f9dee | 2261 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2262 | { |
2263 | uint32_t unique; | |
2264 | enum zapi_ipset_notify_owner note; | |
2265 | struct bgp_pbr_match *bgp_pbim; | |
2266 | ||
2267 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2268 | &unique, | |
2269 | ¬e)) | |
2270 | return -1; | |
2271 | ||
2272 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2273 | if (!bgp_pbim) { | |
2274 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2275 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
15569c58 | 2276 | __func__, note, unique); |
30d50e6d PG |
2277 | return 0; |
2278 | } | |
2279 | ||
2280 | switch (note) { | |
2281 | case ZAPI_IPSET_FAIL_INSTALL: | |
2282 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2283 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__); |
30d50e6d PG |
2284 | bgp_pbim->installed = false; |
2285 | bgp_pbim->install_in_progress = false; | |
2286 | break; | |
2287 | case ZAPI_IPSET_INSTALLED: | |
2288 | bgp_pbim->installed = true; | |
2289 | bgp_pbim->install_in_progress = false; | |
2290 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2291 | zlog_debug("%s: Received IPSET_INSTALLED", __func__); |
30d50e6d | 2292 | break; |
f18a08f5 | 2293 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2294 | case ZAPI_IPSET_REMOVED: |
2295 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2296 | zlog_debug("%s: Received IPSET REMOVED", __func__); |
30d50e6d PG |
2297 | break; |
2298 | } | |
2299 | ||
2300 | return 0; | |
2301 | } | |
2302 | ||
121f9dee | 2303 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2304 | { |
2305 | uint32_t unique; | |
2306 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2307 | enum zapi_ipset_entry_notify_owner note; | |
2308 | struct bgp_pbr_match_entry *bgp_pbime; | |
2309 | ||
2310 | if (!zapi_ipset_entry_notify_decode( | |
2311 | zclient->ibuf, | |
2312 | &unique, | |
2313 | ipset_name, | |
2314 | ¬e)) | |
2315 | return -1; | |
2316 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2317 | ipset_name, | |
2318 | unique); | |
2319 | if (!bgp_pbime) { | |
2320 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2321 | zlog_debug( |
2322 | "%s: Fail to look BGP match entry (%u, ID %u)", | |
2323 | __func__, note, unique); | |
30d50e6d PG |
2324 | return 0; |
2325 | } | |
2326 | ||
2327 | switch (note) { | |
2328 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2329 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2330 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
15569c58 | 2331 | __func__); |
30d50e6d PG |
2332 | bgp_pbime->installed = false; |
2333 | bgp_pbime->install_in_progress = false; | |
2334 | break; | |
2335 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2336 | { |
9b6d8fcf | 2337 | struct bgp_path_info *path; |
4b7e6066 DS |
2338 | struct bgp_path_info_extra *extra; |
2339 | ||
2340 | bgp_pbime->installed = true; | |
2341 | bgp_pbime->install_in_progress = false; | |
2342 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2343 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
15569c58 | 2344 | __func__); |
9b6d8fcf DS |
2345 | /* link bgp_path_info to bpme */ |
2346 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2347 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2348 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2349 | } |
30d50e6d | 2350 | break; |
f18a08f5 | 2351 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2352 | case ZAPI_IPSET_ENTRY_REMOVED: |
2353 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2354 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
15569c58 | 2355 | __func__); |
30d50e6d PG |
2356 | break; |
2357 | } | |
2358 | return 0; | |
2359 | } | |
2360 | ||
121f9dee | 2361 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2362 | { |
2363 | uint32_t unique; | |
2364 | enum zapi_iptable_notify_owner note; | |
2365 | struct bgp_pbr_match *bgpm; | |
2366 | ||
2367 | if (!zapi_iptable_notify_decode( | |
2368 | zclient->ibuf, | |
2369 | &unique, | |
2370 | ¬e)) | |
2371 | return -1; | |
2372 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2373 | if (!bgpm) { | |
2374 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed | 2375 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
15569c58 | 2376 | __func__, note, unique); |
c16a0a62 PG |
2377 | return 0; |
2378 | } | |
2379 | switch (note) { | |
2380 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2381 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2382 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
15569c58 | 2383 | __func__); |
c16a0a62 PG |
2384 | bgpm->installed_in_iptable = false; |
2385 | bgpm->install_iptable_in_progress = false; | |
2386 | break; | |
2387 | case ZAPI_IPTABLE_INSTALLED: | |
2388 | bgpm->installed_in_iptable = true; | |
2389 | bgpm->install_iptable_in_progress = false; | |
2390 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2391 | zlog_debug("%s: Received IPTABLE_INSTALLED", __func__); |
a6b07429 | 2392 | bgpm->action->refcnt++; |
c16a0a62 | 2393 | break; |
f18a08f5 | 2394 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2395 | case ZAPI_IPTABLE_REMOVED: |
2396 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2397 | zlog_debug("%s: Received IPTABLE REMOVED", __func__); |
c16a0a62 PG |
2398 | break; |
2399 | } | |
2400 | return 0; | |
2401 | } | |
2402 | ||
6cfe5d15 PG |
2403 | /* this function is used to forge ip rule, |
2404 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2405 | * - or for sample ip rule cmd |
6cfe5d15 | 2406 | */ |
30d50e6d | 2407 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2408 | struct bgp_pbr_action *pbra, |
2409 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2410 | { |
6cfe5d15 | 2411 | struct prefix pfx; |
f01e580f | 2412 | uint8_t fam = AF_INET; |
30d50e6d | 2413 | |
9f1f03ec | 2414 | if (pbra->nh.type == NEXTHOP_TYPE_IPV6) |
f01e580f | 2415 | fam = AF_INET6; |
30d50e6d | 2416 | stream_putl(s, 0); /* seqno unused */ |
8112a7a0 PG |
2417 | if (pbr) |
2418 | stream_putl(s, pbr->priority); | |
2419 | else | |
2420 | stream_putl(s, 0); | |
2421 | /* ruleno unused - priority change | |
2422 | * ruleno permits distinguishing various FS PBR entries | |
2423 | * - FS PBR entries based on ipset/iptables | |
2424 | * - FS PBR entries based on iprule | |
2425 | * the latter may contain default routing information injected by FS | |
2426 | */ | |
6cfe5d15 PG |
2427 | if (pbr) |
2428 | stream_putl(s, pbr->unique); | |
2429 | else | |
2430 | stream_putl(s, pbra->unique); | |
2431 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) | |
2432 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2433 | else { | |
2434 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2435 | pfx.family = fam; |
6cfe5d15 PG |
2436 | } |
2437 | stream_putc(s, pfx.family); | |
2438 | stream_putc(s, pfx.prefixlen); | |
2439 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2440 | |
2441 | stream_putw(s, 0); /* src port */ | |
2442 | ||
6cfe5d15 PG |
2443 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2444 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2445 | else { | |
2446 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2447 | pfx.family = fam; |
6cfe5d15 PG |
2448 | } |
2449 | stream_putc(s, pfx.family); | |
2450 | stream_putc(s, pfx.prefixlen); | |
2451 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2452 | |
2453 | stream_putw(s, 0); /* dst port */ | |
2454 | ||
6cfe5d15 PG |
2455 | /* if pbr present, fwmark is not used */ |
2456 | if (pbr) | |
2457 | stream_putl(s, 0); | |
2458 | else | |
2459 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d PG |
2460 | |
2461 | stream_putl(s, pbra->table_id); | |
2462 | ||
2463 | stream_putl(s, 0); /* ifindex unused */ | |
2464 | } | |
2465 | ||
2466 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2467 | struct bgp_pbr_match *pbim) | |
2468 | { | |
2469 | stream_putl(s, pbim->unique); | |
2470 | stream_putl(s, pbim->type); | |
a60b7031 | 2471 | stream_putc(s, pbim->family); |
30d50e6d PG |
2472 | stream_put(s, pbim->ipset_name, |
2473 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2474 | } |
2475 | ||
2476 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2477 | struct bgp_pbr_match_entry *pbime) | |
2478 | { | |
2479 | stream_putl(s, pbime->unique); | |
2480 | /* check that back pointer is not null */ | |
2481 | stream_put(s, pbime->backpointer->ipset_name, | |
2482 | ZEBRA_IPSET_NAME_SIZE); | |
2483 | ||
2484 | stream_putc(s, pbime->src.family); | |
2485 | stream_putc(s, pbime->src.prefixlen); | |
2486 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2487 | ||
2488 | stream_putc(s, pbime->dst.family); | |
2489 | stream_putc(s, pbime->dst.prefixlen); | |
2490 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2491 | |
2492 | stream_putw(s, pbime->src_port_min); | |
2493 | stream_putw(s, pbime->src_port_max); | |
2494 | stream_putw(s, pbime->dst_port_min); | |
2495 | stream_putw(s, pbime->dst_port_max); | |
2496 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2497 | } |
2498 | ||
c16a0a62 PG |
2499 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2500 | struct bgp_pbr_action *bpa, | |
2501 | struct bgp_pbr_match *pbm) | |
2502 | { | |
2503 | stream_putl(s, pbm->unique2); | |
2504 | ||
2505 | stream_putl(s, pbm->type); | |
2506 | ||
2507 | stream_putl(s, pbm->flags); | |
2508 | ||
2509 | /* TODO: correlate with what is contained | |
2510 | * into bgp_pbr_action. | |
2511 | * currently only forward supported | |
2512 | */ | |
2513 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2514 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2515 | else | |
2516 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2517 | stream_putl(s, bpa->fwmark); | |
2518 | stream_put(s, pbm->ipset_name, | |
2519 | ZEBRA_IPSET_NAME_SIZE); | |
a60b7031 | 2520 | stream_putc(s, pbm->family); |
83360720 PG |
2521 | stream_putw(s, pbm->pkt_len_min); |
2522 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2523 | stream_putw(s, pbm->tcp_flags); |
2524 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2525 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2526 | stream_putc(s, pbm->fragment); |
f449d223 | 2527 | stream_putc(s, pbm->protocol); |
a60b7031 | 2528 | stream_putw(s, pbm->flow_label); |
c16a0a62 PG |
2529 | } |
2530 | ||
ad4cbda1 | 2531 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2532 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2533 | { |
d62a17ae | 2534 | struct bgp *bgp; |
7076bb2f | 2535 | |
d62a17ae | 2536 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2537 | |
d62a17ae | 2538 | /* At this point, we may or may not have BGP instances configured, but |
2539 | * we're only interested in the default VRF (others wouldn't have learnt | |
2540 | * the VRF from Zebra yet.) | |
2541 | */ | |
2542 | bgp = bgp_get_default(); | |
2543 | if (!bgp) | |
2544 | return; | |
ad4cbda1 | 2545 | |
d62a17ae | 2546 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2547 | |
d62a17ae | 2548 | /* Send the client registration */ |
0945d5ed | 2549 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, bgp->vrf_id); |
2376c3f2 | 2550 | |
955bfd98 | 2551 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2552 | bgp_lp_event_zebra_up(); |
955bfd98 | 2553 | |
d62a17ae | 2554 | /* TODO - What if we have peers and networks configured, do we have to |
2555 | * kick-start them? | |
2556 | */ | |
85ef4179 | 2557 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer); |
7076bb2f FL |
2558 | } |
2559 | ||
c44ab6f1 AK |
2560 | static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS) |
2561 | { | |
2562 | esi_t esi; | |
2563 | struct bgp *bgp = NULL; | |
2564 | struct stream *s = NULL; | |
2565 | char buf[ESI_STR_LEN]; | |
2566 | struct in_addr originator_ip; | |
2567 | uint8_t active; | |
2568 | ||
2569 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2570 | if (!bgp) | |
2571 | return 0; | |
2572 | ||
2573 | s = zclient->ibuf; | |
2574 | stream_get(&esi, s, sizeof(esi_t)); | |
2575 | originator_ip.s_addr = stream_get_ipv4(s); | |
2576 | active = stream_getc(s); | |
2577 | ||
2578 | if (BGP_DEBUG(zebra, ZEBRA)) | |
23d0a753 DA |
2579 | zlog_debug("Rx add ESI %s originator-ip %pI4 active %u", |
2580 | esi_to_str(&esi, buf, sizeof(buf)), &originator_ip, | |
2581 | active); | |
c44ab6f1 AK |
2582 | |
2583 | bgp_evpn_local_es_add(bgp, &esi, originator_ip, active); | |
2584 | ||
2585 | return 0; | |
2586 | } | |
2587 | ||
2588 | static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS) | |
50f74cf1 | 2589 | { |
2590 | esi_t esi; | |
2591 | struct bgp *bgp = NULL; | |
2592 | struct stream *s = NULL; | |
2593 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2594 | |
2595 | memset(&esi, 0, sizeof(esi_t)); | |
c44ab6f1 AK |
2596 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2597 | if (!bgp) | |
2598 | return 0; | |
2599 | ||
2600 | s = zclient->ibuf; | |
2601 | stream_get(&esi, s, sizeof(esi_t)); | |
2602 | ||
2603 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2604 | zlog_debug("Rx del ESI %s", | |
2605 | esi_to_str(&esi, buf, sizeof(buf))); | |
2606 | ||
2607 | bgp_evpn_local_es_del(bgp, &esi); | |
2608 | ||
2609 | return 0; | |
2610 | } | |
2611 | ||
2612 | static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS) | |
2613 | { | |
2614 | esi_t esi; | |
2615 | vni_t vni; | |
2616 | struct bgp *bgp; | |
2617 | struct stream *s; | |
2618 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2619 | |
2620 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2621 | if (!bgp) | |
2622 | return 0; | |
2623 | ||
2624 | s = zclient->ibuf; | |
2625 | stream_get(&esi, s, sizeof(esi_t)); | |
c44ab6f1 | 2626 | vni = stream_getl(s); |
50f74cf1 | 2627 | |
2628 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c44ab6f1 AK |
2629 | zlog_debug("Rx %s ESI %s VNI %u", |
2630 | ZEBRA_VNI_ADD ? "add" : "del", | |
2631 | esi_to_str(&esi, buf, sizeof(buf)), vni); | |
50f74cf1 | 2632 | |
c44ab6f1 AK |
2633 | if (cmd == ZEBRA_LOCAL_ES_EVI_ADD) |
2634 | bgp_evpn_local_es_evi_add(bgp, &esi, vni); | |
50f74cf1 | 2635 | else |
c44ab6f1 AK |
2636 | bgp_evpn_local_es_evi_del(bgp, &esi, vni); |
2637 | ||
50f74cf1 | 2638 | return 0; |
2639 | } | |
2640 | ||
121f9dee | 2641 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 2642 | { |
c48d9f5f | 2643 | int filter = 0; |
fe1dc5a3 | 2644 | char buf[ETHER_ADDR_STRLEN]; |
b67a60d2 | 2645 | vni_t l3vni = 0; |
14e814ea | 2646 | struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} }; |
b67a60d2 | 2647 | struct in_addr originator_ip; |
fe1dc5a3 | 2648 | struct stream *s; |
0483af6e | 2649 | ifindex_t svi_ifindex; |
14e814ea CS |
2650 | bool is_anycast_mac = false; |
2651 | char buf1[ETHER_ADDR_STRLEN]; | |
fe1dc5a3 | 2652 | |
14e814ea | 2653 | memset(&svi_rmac, 0, sizeof(struct ethaddr)); |
b67a60d2 | 2654 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2655 | s = zclient->ibuf; |
2656 | l3vni = stream_getl(s); | |
b67a60d2 | 2657 | if (cmd == ZEBRA_L3VNI_ADD) { |
14e814ea | 2658 | stream_get(&svi_rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2659 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2660 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2661 | svi_ifindex = stream_getl(s); |
14e814ea CS |
2662 | stream_get(&vrr_rmac, s, sizeof(struct ethaddr)); |
2663 | is_anycast_mac = stream_getl(s); | |
fe1dc5a3 | 2664 | |
0483af6e | 2665 | if (BGP_DEBUG(zebra, ZEBRA)) |
14e814ea | 2666 | zlog_debug("Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %s vrr-mac %s filter %s svi-if %u", |
0483af6e | 2667 | vrf_id_to_name(vrf_id), l3vni, |
14e814ea CS |
2668 | prefix_mac2str(&svi_rmac, buf, sizeof(buf)), |
2669 | prefix_mac2str(&vrr_rmac, buf1, | |
2670 | sizeof(buf1)), | |
0483af6e | 2671 | filter ? "prefix-routes-only" : "none", |
2672 | svi_ifindex); | |
fe1dc5a3 | 2673 | |
14e814ea CS |
2674 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac, |
2675 | originator_ip, filter, svi_ifindex, | |
2676 | is_anycast_mac); | |
0483af6e | 2677 | } else { |
2678 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2679 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2680 | vrf_id_to_name(vrf_id), l3vni); | |
2681 | ||
fe1dc5a3 | 2682 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 2683 | } |
fe1dc5a3 MK |
2684 | |
2685 | return 0; | |
2686 | } | |
2687 | ||
121f9dee | 2688 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2689 | { |
d62a17ae | 2690 | struct stream *s; |
2691 | vni_t vni; | |
2692 | struct bgp *bgp; | |
a4d82a8a | 2693 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2694 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 2695 | struct in_addr mcast_grp = {INADDR_ANY}; |
d62a17ae | 2696 | |
2697 | s = zclient->ibuf; | |
2698 | vni = stream_getl(s); | |
121f9dee | 2699 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 2700 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 2701 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 2702 | mcast_grp.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2703 | } |
2704 | ||
d62a17ae | 2705 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2706 | if (!bgp) | |
2707 | return 0; | |
2708 | ||
2709 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 | 2710 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
121f9dee | 2711 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
a4d82a8a PZ |
2712 | vrf_id_to_name(vrf_id), vni, |
2713 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2714 | |
121f9dee | 2715 | if (cmd == ZEBRA_VNI_ADD) |
d62a17ae | 2716 | return bgp_evpn_local_vni_add( |
975a328e DA |
2717 | bgp, vni, |
2718 | vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id, | |
76d07c7a | 2719 | tenant_vrf_id, mcast_grp); |
d62a17ae | 2720 | else |
2721 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2722 | } |
2723 | ||
121f9dee | 2724 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2725 | { |
d62a17ae | 2726 | struct stream *s; |
2727 | vni_t vni; | |
2728 | struct bgp *bgp; | |
2729 | struct ethaddr mac; | |
2730 | struct ipaddr ip; | |
2731 | int ipa_len; | |
2732 | char buf[ETHER_ADDR_STRLEN]; | |
2733 | char buf1[INET6_ADDRSTRLEN]; | |
f07e1c99 | 2734 | uint8_t flags = 0; |
2735 | uint32_t seqnum = 0; | |
ec0ab544 | 2736 | int state = 0; |
c44ab6f1 AK |
2737 | char buf2[ESI_STR_LEN]; |
2738 | esi_t esi; | |
d62a17ae | 2739 | |
2740 | memset(&ip, 0, sizeof(ip)); | |
2741 | s = zclient->ibuf; | |
2742 | vni = stream_getl(s); | |
28328ea9 | 2743 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2744 | ipa_len = stream_getl(s); |
2745 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2746 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 2747 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 2748 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 2749 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 2750 | ipa_len); |
d62a17ae | 2751 | return -1; |
2752 | } | |
2753 | ||
2754 | if (ipa_len) { | |
2755 | ip.ipa_type = | |
2756 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2757 | stream_get(&ip.ip.addr, s, ipa_len); | |
2758 | } | |
121f9dee | 2759 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 2760 | flags = stream_getc(s); |
2761 | seqnum = stream_getl(s); | |
c44ab6f1 | 2762 | stream_get(&esi, s, sizeof(esi_t)); |
ec0ab544 AK |
2763 | } else { |
2764 | state = stream_getl(s); | |
f07e1c99 | 2765 | } |
d62a17ae | 2766 | |
2767 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2768 | if (!bgp) | |
2769 | return 0; | |
2770 | ||
2771 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c44ab6f1 | 2772 | zlog_debug("%u:Recv MACIP %s f 0x%x MAC %s IP %s VNI %u seq %u state %d ESI %s", |
121f9dee | 2773 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1a98c087 | 2774 | flags, prefix_mac2str(&mac, buf, sizeof(buf)), |
ec0ab544 | 2775 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, seqnum, |
c44ab6f1 | 2776 | state, esi_to_str(&esi, buf2, sizeof(buf2))); |
d62a17ae | 2777 | |
121f9dee | 2778 | if (cmd == ZEBRA_MACIP_ADD) |
f07e1c99 | 2779 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
c44ab6f1 | 2780 | flags, seqnum, &esi); |
d62a17ae | 2781 | else |
ec0ab544 | 2782 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
128ea8ab | 2783 | } |
6aeb9e78 | 2784 | |
121f9dee | 2785 | static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
2786 | { |
2787 | struct stream *s = NULL; | |
2788 | struct bgp *bgp_vrf = NULL; | |
2789 | struct prefix p; | |
2790 | char buf[PREFIX_STRLEN]; | |
2791 | ||
2792 | memset(&p, 0, sizeof(struct prefix)); | |
2793 | s = zclient->ibuf; | |
2794 | stream_get(&p, s, sizeof(struct prefix)); | |
2795 | ||
2796 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2797 | if (!bgp_vrf) | |
2798 | return; | |
2799 | ||
2800 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2801 | zlog_debug("Recv prefix %s %s on vrf %s", | |
2802 | prefix2str(&p, buf, sizeof(buf)), | |
2803 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
2804 | vrf_id_to_name(vrf_id)); | |
2805 | ||
2806 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2807 | ||
2808 | if (p.family == AF_INET) | |
d90b788e A |
2809 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2810 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 2811 | else |
d90b788e A |
2812 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2813 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2814 | |
2815 | } else { | |
2816 | if (p.family == AF_INET) | |
d90b788e A |
2817 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
2818 | SAFI_UNICAST); | |
31310b25 | 2819 | else |
d90b788e A |
2820 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
2821 | SAFI_UNICAST); | |
31310b25 MK |
2822 | } |
2823 | } | |
2824 | ||
121f9dee | 2825 | static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
2826 | { |
2827 | struct stream *s = NULL; | |
2828 | uint8_t response_keep; | |
2829 | uint32_t first; | |
2830 | uint32_t last; | |
aec865e4 FR |
2831 | uint8_t proto; |
2832 | unsigned short instance; | |
955bfd98 PZ |
2833 | |
2834 | s = zclient->ibuf; | |
aec865e4 FR |
2835 | STREAM_GETC(s, proto); |
2836 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2837 | STREAM_GETC(s, response_keep); |
2838 | STREAM_GETL(s, first); | |
2839 | STREAM_GETL(s, last); | |
2840 | ||
aec865e4 | 2841 | if (zclient->redist_default != proto) { |
e50f7cfd | 2842 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 2843 | proto); |
aec865e4 FR |
2844 | return; |
2845 | } | |
2846 | if (zclient->instance != instance) { | |
e50f7cfd | 2847 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 2848 | proto); |
aec865e4 FR |
2849 | return; |
2850 | } | |
2851 | ||
955bfd98 PZ |
2852 | if (first > last || |
2853 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2854 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2855 | ||
e50f7cfd | 2856 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 2857 | __func__, first, last); |
955bfd98 PZ |
2858 | return; |
2859 | } | |
2860 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2861 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2862 | first, last, response_keep); | |
2863 | } | |
2864 | ||
e70e9f8e | 2865 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2866 | |
2867 | stream_failure: /* for STREAM_GETX */ | |
2868 | return; | |
2869 | } | |
2870 | ||
342213ea DS |
2871 | extern struct zebra_privs_t bgpd_privs; |
2872 | ||
138c5a74 DS |
2873 | static int bgp_ifp_create(struct interface *ifp) |
2874 | { | |
ef7bd2a3 DS |
2875 | struct bgp *bgp; |
2876 | ||
2877 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2878 | zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name); | |
2879 | ||
2880 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); | |
2881 | if (!bgp) | |
2882 | return 0; | |
2883 | ||
2884 | bgp_mac_add_mac_entry(ifp); | |
2885 | ||
2886 | bgp_update_interface_nbrs(bgp, ifp, ifp); | |
138c5a74 DS |
2887 | return 0; |
2888 | } | |
2889 | ||
f533be73 | 2890 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2891 | { |
d62a17ae | 2892 | zclient_num_connects = 0; |
2893 | ||
138c5a74 DS |
2894 | if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up, |
2895 | bgp_ifp_down, bgp_ifp_destroy); | |
2896 | ||
d62a17ae | 2897 | /* Set default values. */ |
26f63a1e | 2898 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2899 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2900 | zclient->zebra_connected = bgp_zebra_connected; |
2901 | zclient->router_id_update = bgp_router_id_update; | |
d62a17ae | 2902 | zclient->interface_address_add = bgp_interface_address_add; |
2903 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2904 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2905 | zclient->interface_nbr_address_delete = | |
2906 | bgp_interface_nbr_address_delete; | |
2907 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
2908 | zclient->redistribute_route_add = zebra_read_route; |
2909 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 2910 | zclient->nexthop_update = bgp_read_nexthop_update; |
2911 | zclient->import_check_update = bgp_read_import_check_update; | |
2912 | zclient->fec_update = bgp_read_fec_update; | |
c44ab6f1 AK |
2913 | zclient->local_es_add = bgp_zebra_process_local_es_add; |
2914 | zclient->local_es_del = bgp_zebra_process_local_es_del; | |
d62a17ae | 2915 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
c44ab6f1 AK |
2916 | zclient->local_es_evi_add = bgp_zebra_process_local_es_evi; |
2917 | zclient->local_es_evi_del = bgp_zebra_process_local_es_evi; | |
d62a17ae | 2918 | zclient->local_vni_del = bgp_zebra_process_local_vni; |
2919 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
2920 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
2921 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
2922 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
2923 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
2924 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 2925 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
2926 | zclient->rule_notify_owner = rule_notify_owner; |
2927 | zclient->ipset_notify_owner = ipset_notify_owner; | |
2928 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 2929 | zclient->iptable_notify_owner = iptable_notify_owner; |
f533be73 | 2930 | zclient->instance = instance; |
718e3744 | 2931 | } |
bb86c601 | 2932 | |
d62a17ae | 2933 | void bgp_zebra_destroy(void) |
bb86c601 | 2934 | { |
d62a17ae | 2935 | if (zclient == NULL) |
2936 | return; | |
2937 | zclient_stop(zclient); | |
2938 | zclient_free(zclient); | |
2939 | zclient = NULL; | |
bb86c601 | 2940 | } |
afbb1c59 | 2941 | |
d62a17ae | 2942 | int bgp_zebra_num_connects(void) |
afbb1c59 | 2943 | { |
d62a17ae | 2944 | return zclient_num_connects; |
afbb1c59 | 2945 | } |
30d50e6d | 2946 | |
6cfe5d15 PG |
2947 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
2948 | struct bgp_pbr_rule *pbr, | |
2949 | bool install) | |
30d50e6d PG |
2950 | { |
2951 | struct stream *s; | |
2952 | ||
6cfe5d15 | 2953 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 2954 | return; |
6cfe5d15 PG |
2955 | if (pbr && pbr->install_in_progress) |
2956 | return; | |
2957 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2958 | if (pbr) | |
15569c58 | 2959 | zlog_debug("%s: table %d (ip rule) %d", __func__, |
6cfe5d15 PG |
2960 | pbra->table_id, install); |
2961 | else | |
15569c58 | 2962 | zlog_debug("%s: table %d fwmark %d %d", __func__, |
6cfe5d15 PG |
2963 | pbra->table_id, pbra->fwmark, install); |
2964 | } | |
30d50e6d PG |
2965 | s = zclient->obuf; |
2966 | stream_reset(s); | |
2967 | ||
2968 | zclient_create_header(s, | |
2969 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
2970 | VRF_DEFAULT); | |
2971 | stream_putl(s, 1); /* send one pbr action */ | |
2972 | ||
6cfe5d15 | 2973 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
2974 | |
2975 | stream_putw_at(s, 0, stream_get_endp(s)); | |
6cfe5d15 PG |
2976 | if (!zclient_send_message(zclient) && install) { |
2977 | if (!pbr) | |
2978 | pbra->install_in_progress = true; | |
2979 | else | |
2980 | pbr->install_in_progress = true; | |
2981 | } | |
30d50e6d PG |
2982 | } |
2983 | ||
2984 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
2985 | { | |
2986 | struct stream *s; | |
2987 | ||
2988 | if (pbrim->install_in_progress) | |
2989 | return; | |
f0936054 | 2990 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
2991 | zlog_debug("%s: name %s type %d %d, ID %u", __func__, |
2992 | pbrim->ipset_name, pbrim->type, install, | |
2993 | pbrim->unique); | |
30d50e6d PG |
2994 | s = zclient->obuf; |
2995 | stream_reset(s); | |
2996 | ||
2997 | zclient_create_header(s, | |
2998 | install ? ZEBRA_IPSET_CREATE : | |
2999 | ZEBRA_IPSET_DESTROY, | |
3000 | VRF_DEFAULT); | |
3001 | ||
3002 | stream_putl(s, 1); /* send one pbr action */ | |
3003 | ||
3004 | bgp_encode_pbr_ipset_match(s, pbrim); | |
3005 | ||
3006 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3007 | if (!zclient_send_message(zclient) && install) | |
3008 | pbrim->install_in_progress = true; | |
3009 | } | |
3010 | ||
3011 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
3012 | bool install) | |
3013 | { | |
3014 | struct stream *s; | |
3015 | ||
3016 | if (pbrime->install_in_progress) | |
3017 | return; | |
f0936054 | 3018 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3019 | zlog_debug("%s: name %s %d %d, ID %u", __func__, |
3020 | pbrime->backpointer->ipset_name, pbrime->unique, | |
3021 | install, pbrime->unique); | |
30d50e6d PG |
3022 | s = zclient->obuf; |
3023 | stream_reset(s); | |
3024 | ||
3025 | zclient_create_header(s, | |
3026 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
3027 | ZEBRA_IPSET_ENTRY_DELETE, | |
3028 | VRF_DEFAULT); | |
3029 | ||
3030 | stream_putl(s, 1); /* send one pbr action */ | |
3031 | ||
3032 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
3033 | ||
3034 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3035 | if (!zclient_send_message(zclient) && install) | |
3036 | pbrime->install_in_progress = true; | |
3037 | } | |
c16a0a62 | 3038 | |
8f242187 PG |
3039 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s, |
3040 | uint8_t family) | |
4762c213 PG |
3041 | { |
3042 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3043 | struct bgp_pbr_interface_head *head; | |
3044 | struct bgp_pbr_interface *pbr_if; | |
3045 | struct interface *ifp; | |
3046 | ||
3047 | if (!bgp_pbr_cfg) | |
3048 | return; | |
8f242187 PG |
3049 | if (family == AF_INET) |
3050 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3051 | else | |
3052 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3053 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3054 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); |
4762c213 PG |
3055 | if (ifp) |
3056 | stream_putl(s, ifp->ifindex); | |
3057 | } | |
3058 | } | |
3059 | ||
8f242187 | 3060 | static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family) |
4762c213 PG |
3061 | { |
3062 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3063 | struct bgp_pbr_interface_head *head; | |
3064 | struct bgp_pbr_interface *pbr_if; | |
3065 | int cnt = 0; | |
3066 | ||
3067 | if (!bgp_pbr_cfg) | |
3068 | return 0; | |
8f242187 PG |
3069 | if (family == AF_INET) |
3070 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3071 | else | |
3072 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3073 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3074 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) |
4762c213 PG |
3075 | cnt++; |
3076 | } | |
3077 | return cnt; | |
3078 | } | |
3079 | ||
c16a0a62 PG |
3080 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
3081 | struct bgp_pbr_match *pbm, | |
3082 | bool install) | |
3083 | { | |
3084 | struct stream *s; | |
b5c40105 | 3085 | int ret = 0; |
4762c213 | 3086 | int nb_interface; |
c16a0a62 PG |
3087 | |
3088 | if (pbm->install_iptable_in_progress) | |
3089 | return; | |
f0936054 | 3090 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3091 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__, |
3092 | pbm->ipset_name, pbm->type, pba->fwmark, install, | |
88055124 | 3093 | pbm->unique2); |
c16a0a62 PG |
3094 | s = zclient->obuf; |
3095 | stream_reset(s); | |
3096 | ||
3097 | zclient_create_header(s, | |
3098 | install ? ZEBRA_IPTABLE_ADD : | |
3099 | ZEBRA_IPTABLE_DELETE, | |
3100 | VRF_DEFAULT); | |
3101 | ||
3102 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
8f242187 | 3103 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family); |
4762c213 PG |
3104 | stream_putl(s, nb_interface); |
3105 | if (nb_interface) | |
8f242187 | 3106 | bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family); |
c16a0a62 | 3107 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
3108 | ret = zclient_send_message(zclient); |
3109 | if (install) { | |
3110 | if (ret) | |
3111 | pba->refcnt++; | |
3112 | else | |
3113 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 3114 | } |
c16a0a62 | 3115 | } |
f7df1907 PG |
3116 | |
3117 | /* inject in table <table_id> a default route to: | |
3118 | * - if nexthop IP is present : to this nexthop | |
3119 | * - if vrf is different from local : to the matching VRF | |
3120 | */ | |
3121 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
3122 | afi_t afi, uint32_t table_id, bool announce) | |
3123 | { | |
3124 | struct zapi_nexthop *api_nh; | |
3125 | struct zapi_route api; | |
3126 | struct prefix p; | |
3127 | ||
f01e580f PG |
3128 | if (!nh || (nh->type != NEXTHOP_TYPE_IPV4 |
3129 | && nh->type != NEXTHOP_TYPE_IPV6) | |
f7df1907 PG |
3130 | || nh->vrf_id == VRF_UNKNOWN) |
3131 | return; | |
3132 | memset(&p, 0, sizeof(struct prefix)); | |
f01e580f | 3133 | if (afi != AFI_IP && afi != AFI_IP6) |
f7df1907 | 3134 | return; |
f01e580f | 3135 | p.family = afi2family(afi); |
f7df1907 PG |
3136 | memset(&api, 0, sizeof(api)); |
3137 | api.vrf_id = bgp->vrf_id; | |
3138 | api.type = ZEBRA_ROUTE_BGP; | |
3139 | api.safi = SAFI_UNICAST; | |
3140 | api.prefix = p; | |
3141 | api.tableid = table_id; | |
3142 | api.nexthop_num = 1; | |
3143 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
3144 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
3145 | api_nh = &api.nexthops[0]; | |
3146 | ||
38a8c751 DS |
3147 | api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT; |
3148 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
3149 | ||
f7df1907 | 3150 | /* redirect IP */ |
f01e580f | 3151 | if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) { |
f7df1907 PG |
3152 | char buff[PREFIX_STRLEN]; |
3153 | ||
3154 | api_nh->vrf_id = nh->vrf_id; | |
3155 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
3156 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
3157 | ||
3158 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
3159 | if (BGP_DEBUG(zebra, ZEBRA)) | |
f01e580f PG |
3160 | zlog_debug("BGP: %s default route to %s table %d (redirect IP)", |
3161 | announce ? "adding" : "withdrawing", | |
3162 | buff, table_id); | |
3163 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3164 | : ZEBRA_ROUTE_DELETE, | |
3165 | zclient, &api); | |
3166 | } else if (afi == AFI_IP6 && | |
3167 | memcmp(&nh->gate.ipv6, | |
3168 | &in6addr_any, sizeof(struct in6_addr))) { | |
3169 | char buff[PREFIX_STRLEN]; | |
3170 | ||
3171 | api_nh->vrf_id = nh->vrf_id; | |
3172 | memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, | |
3173 | sizeof(struct in6_addr)); | |
3174 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
3175 | ||
3176 | inet_ntop(AF_INET6, &(nh->gate.ipv6), buff, INET_ADDRSTRLEN); | |
3177 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3178 | zlog_debug("BGP: %s default route to %s table %d (redirect IP)", | |
d887503c | 3179 | announce ? "adding" : "withdrawing", |
f7df1907 PG |
3180 | buff, table_id); |
3181 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3182 | : ZEBRA_ROUTE_DELETE, | |
3183 | zclient, &api); | |
3184 | } else if (nh->vrf_id != bgp->vrf_id) { | |
3185 | struct vrf *vrf; | |
eb4244f8 | 3186 | struct interface *ifp; |
f7df1907 | 3187 | |
eb4244f8 | 3188 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
3189 | if (!vrf) |
3190 | return; | |
eb4244f8 PG |
3191 | /* create default route with interface <VRF> |
3192 | * with nexthop-vrf <VRF> | |
f7df1907 | 3193 | */ |
eb4244f8 PG |
3194 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
3195 | if (!ifp) | |
3196 | return; | |
3197 | api_nh->vrf_id = nh->vrf_id; | |
3198 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
3199 | api_nh->ifindex = ifp->ifindex; | |
3200 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3201 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
3202 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
3203 | vrf->name, table_id); |
3204 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3205 | : ZEBRA_ROUTE_DELETE, | |
3206 | zclient, &api); | |
f7df1907 PG |
3207 | return; |
3208 | } | |
3209 | } | |
85ef4179 | 3210 | |
3211 | /* Send capabilities to RIB */ | |
3212 | int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable) | |
3213 | { | |
3214 | struct zapi_cap api; | |
3215 | int ret = BGP_GR_SUCCESS; | |
3216 | ||
3217 | if (zclient == NULL) { | |
3218 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3219 | zlog_debug("zclient invalid"); | |
3220 | return BGP_GR_FAILURE; | |
3221 | } | |
3222 | ||
3223 | /* Check if the client is connected */ | |
3224 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3225 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3226 | zlog_debug("client not connected"); | |
3227 | return BGP_GR_FAILURE; | |
3228 | } | |
3229 | ||
3230 | /* Check if capability is already sent. If the flag force is set | |
3231 | * send the capability since this can be initial bgp configuration | |
3232 | */ | |
3233 | memset(&api, 0, sizeof(struct zapi_cap)); | |
3234 | if (disable) { | |
3235 | api.cap = ZEBRA_CLIENT_GR_DISABLE; | |
3236 | api.vrf_id = bgp->vrf_id; | |
3237 | } else { | |
3238 | api.cap = ZEBRA_CLIENT_GR_CAPABILITIES; | |
3239 | api.stale_removal_time = bgp->rib_stale_time; | |
3240 | api.vrf_id = bgp->vrf_id; | |
3241 | } | |
3242 | ||
36235319 QY |
3243 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
3244 | < 0) { | |
2ba1fe69 | 3245 | zlog_err("error sending capability"); |
85ef4179 | 3246 | ret = BGP_GR_FAILURE; |
3247 | } else { | |
3248 | if (disable) | |
3249 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; | |
3250 | else | |
3251 | bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE; | |
3252 | ||
3253 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3254 | zlog_debug("send capabilty success"); | |
3255 | ret = BGP_GR_SUCCESS; | |
3256 | } | |
3257 | return ret; | |
3258 | } | |
3259 | ||
3260 | /* Send route update pesding or completed status to RIB for the | |
3261 | * specific AFI, SAFI | |
3262 | */ | |
3263 | int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type) | |
3264 | { | |
2ba1fe69 | 3265 | struct zapi_cap api = {0}; |
85ef4179 | 3266 | |
3267 | if (zclient == NULL) { | |
3268 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2ba1fe69 | 3269 | zlog_debug("zclient == NULL, invalid"); |
85ef4179 | 3270 | return BGP_GR_FAILURE; |
3271 | } | |
3272 | ||
3273 | /* Check if the client is connected */ | |
3274 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3275 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3276 | zlog_debug("client not connected"); | |
3277 | return BGP_GR_FAILURE; | |
3278 | } | |
3279 | ||
85ef4179 | 3280 | api.afi = afi; |
3281 | api.safi = safi; | |
3282 | api.vrf_id = vrf_id; | |
3283 | api.cap = type; | |
3284 | ||
36235319 QY |
3285 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
3286 | < 0) { | |
85ef4179 | 3287 | if (BGP_DEBUG(zebra, ZEBRA)) |
3288 | zlog_debug("error sending capability"); | |
3289 | return BGP_GR_FAILURE; | |
3290 | } | |
3291 | return BGP_GR_SUCCESS; | |
3292 | } | |
3293 | ||
3294 | ||
85ef4179 | 3295 | /* Send RIB stale timer update */ |
3296 | int bgp_zebra_stale_timer_update(struct bgp *bgp) | |
3297 | { | |
3298 | struct zapi_cap api; | |
3299 | ||
3300 | if (zclient == NULL) { | |
3301 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3302 | zlog_debug("zclient invalid"); | |
3303 | return BGP_GR_FAILURE; | |
3304 | } | |
3305 | ||
3306 | /* Check if the client is connected */ | |
3307 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3308 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3309 | zlog_debug("client not connected"); | |
3310 | return BGP_GR_FAILURE; | |
3311 | } | |
3312 | ||
3313 | memset(&api, 0, sizeof(struct zapi_cap)); | |
3314 | api.cap = ZEBRA_CLIENT_RIB_STALE_TIME; | |
3315 | api.stale_removal_time = bgp->rib_stale_time; | |
3316 | api.vrf_id = bgp->vrf_id; | |
36235319 QY |
3317 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
3318 | < 0) { | |
85ef4179 | 3319 | if (BGP_DEBUG(zebra, ZEBRA)) |
3320 | zlog_debug("error sending capability"); | |
3321 | return BGP_GR_FAILURE; | |
3322 | } | |
3323 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3324 | zlog_debug("send capabilty success"); | |
3325 | return BGP_GR_SUCCESS; | |
3326 | } |