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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" | |
e46723a5 | 44 | #include "bgpd/bgp_aspath.h" |
718e3744 | 45 | #include "bgpd/bgp_nexthop.h" |
46 | #include "bgpd/bgp_zebra.h" | |
47 | #include "bgpd/bgp_fsm.h" | |
a39275d7 | 48 | #include "bgpd/bgp_debug.h" |
14454c9f | 49 | #include "bgpd/bgp_errors.h" |
8196f13d | 50 | #include "bgpd/bgp_mpath.h" |
fb018d25 | 51 | #include "bgpd/bgp_nexthop.h" |
ffd0c037 | 52 | #include "bgpd/bgp_nht.h" |
8c4f6381 | 53 | #include "bgpd/bgp_bfd.h" |
cd1964ff | 54 | #include "bgpd/bgp_label.h" |
49e5a4a0 | 55 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 56 | #include "bgpd/rfapi/rfapi_backend.h" |
57 | #include "bgpd/rfapi/vnc_export_bgp.h" | |
65efcfce | 58 | #endif |
128ea8ab | 59 | #include "bgpd/bgp_evpn.h" |
ddb5b488 | 60 | #include "bgpd/bgp_mplsvpn.h" |
955bfd98 | 61 | #include "bgpd/bgp_labelpool.h" |
30d50e6d | 62 | #include "bgpd/bgp_pbr.h" |
0b9d9cd0 | 63 | #include "bgpd/bgp_evpn_private.h" |
c44ab6f1 | 64 | #include "bgpd/bgp_evpn_mh.h" |
6a69ac51 | 65 | #include "bgpd/bgp_mac.h" |
6b0655a2 | 66 | |
718e3744 | 67 | /* All information about zebra. */ |
228da428 | 68 | struct zclient *zclient = NULL; |
718e3744 | 69 | |
0d020cd6 PR |
70 | /* hook to indicate vrf status change for SNMP */ |
71 | DEFINE_HOOK(bgp_vrf_status_changed, (struct bgp *bgp, struct interface *ifp), | |
8451921b | 72 | (bgp, ifp)); |
0d020cd6 | 73 | |
ad4cbda1 | 74 | /* Can we install into zebra? */ |
3dc339cd | 75 | static inline bool bgp_install_info_to_zebra(struct bgp *bgp) |
ad4cbda1 | 76 | { |
d62a17ae | 77 | if (zclient->sock <= 0) |
3dc339cd | 78 | return false; |
ad4cbda1 | 79 | |
bb4ef1ae | 80 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
15569c58 DA |
81 | zlog_debug( |
82 | "%s: No zebra instance to talk to, not installing information", | |
83 | __func__); | |
3dc339cd | 84 | return false; |
bb4ef1ae | 85 | } |
ad4cbda1 | 86 | |
3dc339cd | 87 | return true; |
ad4cbda1 | 88 | } |
89 | ||
afbb1c59 LB |
90 | int zclient_num_connects; |
91 | ||
18a6dce6 | 92 | /* Router-id update message from zebra. */ |
121f9dee | 93 | static int bgp_router_id_update(ZAPI_CALLBACK_ARGS) |
718e3744 | 94 | { |
d62a17ae | 95 | struct prefix router_id; |
718e3744 | 96 | |
d62a17ae | 97 | zebra_router_id_update_read(zclient->ibuf, &router_id); |
a39275d7 | 98 | |
2dbe669b DA |
99 | if (BGP_DEBUG(zebra, ZEBRA)) |
100 | zlog_debug("Rx Router Id update VRF %u Id %pFX", vrf_id, | |
101 | &router_id); | |
a39275d7 | 102 | |
d62a17ae | 103 | bgp_router_id_zebra_bump(vrf_id, &router_id); |
104 | return 0; | |
718e3744 | 105 | } |
106 | ||
fb018d25 | 107 | /* Nexthop update message from zebra. */ |
121f9dee | 108 | static int bgp_read_nexthop_update(ZAPI_CALLBACK_ARGS) |
fb018d25 | 109 | { |
121f9dee | 110 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 111 | return 0; |
078430f6 DS |
112 | } |
113 | ||
121f9dee | 114 | static int bgp_read_import_check_update(ZAPI_CALLBACK_ARGS) |
078430f6 | 115 | { |
121f9dee | 116 | bgp_parse_nexthop_update(cmd, vrf_id); |
d62a17ae | 117 | return 0; |
fb018d25 DS |
118 | } |
119 | ||
4a04e5f7 | 120 | /* Set or clear interface on which unnumbered neighbor is configured. This |
121 | * would in turn cause BGP to initiate or turn off IPv6 RAs on this | |
122 | * interface. | |
123 | */ | |
d62a17ae | 124 | static void bgp_update_interface_nbrs(struct bgp *bgp, struct interface *ifp, |
125 | struct interface *upd_ifp) | |
4a04e5f7 | 126 | { |
d62a17ae | 127 | struct listnode *node, *nnode; |
128 | struct peer *peer; | |
129 | ||
130 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
131 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0)) { | |
132 | if (upd_ifp) { | |
133 | peer->ifp = upd_ifp; | |
134 | bgp_zebra_initiate_radv(bgp, peer); | |
135 | } else { | |
136 | bgp_zebra_terminate_radv(bgp, peer); | |
137 | peer->ifp = upd_ifp; | |
138 | } | |
139 | } | |
140 | } | |
4a04e5f7 | 141 | } |
142 | ||
d62a17ae | 143 | static int bgp_read_fec_update(int command, struct zclient *zclient, |
144 | zebra_size_t length) | |
cd1964ff | 145 | { |
d62a17ae | 146 | bgp_parse_fec_update(); |
147 | return 0; | |
cd1964ff DS |
148 | } |
149 | ||
d62a17ae | 150 | static void bgp_start_interface_nbrs(struct bgp *bgp, struct interface *ifp) |
a80beece | 151 | { |
d62a17ae | 152 | struct listnode *node, *nnode; |
153 | struct peer *peer; | |
154 | ||
155 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
156 | if (peer->conf_if && (strcmp(peer->conf_if, ifp->name) == 0) | |
157 | && peer->status != Established) { | |
158 | if (peer_active(peer)) | |
159 | BGP_EVENT_ADD(peer, BGP_Stop); | |
160 | BGP_EVENT_ADD(peer, BGP_Start); | |
161 | } | |
162 | } | |
a80beece DS |
163 | } |
164 | ||
d62a17ae | 165 | static void bgp_nbr_connected_add(struct bgp *bgp, struct nbr_connected *ifc) |
a197c47c | 166 | { |
d62a17ae | 167 | struct listnode *node; |
168 | struct connected *connected; | |
169 | struct interface *ifp; | |
170 | struct prefix *p; | |
171 | ||
172 | /* Kick-off the FSM for any relevant peers only if there is a | |
173 | * valid local address on the interface. | |
174 | */ | |
175 | ifp = ifc->ifp; | |
176 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, connected)) { | |
177 | p = connected->address; | |
178 | if (p->family == AF_INET6 | |
179 | && IN6_IS_ADDR_LINKLOCAL(&p->u.prefix6)) | |
180 | break; | |
181 | } | |
182 | if (!connected) | |
183 | return; | |
184 | ||
185 | bgp_start_interface_nbrs(bgp, ifp); | |
a197c47c DS |
186 | } |
187 | ||
d62a17ae | 188 | static void bgp_nbr_connected_delete(struct bgp *bgp, struct nbr_connected *ifc, |
189 | int del) | |
a80beece | 190 | { |
d62a17ae | 191 | struct listnode *node, *nnode; |
192 | struct peer *peer; | |
193 | struct interface *ifp; | |
194 | ||
195 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
196 | if (peer->conf_if | |
197 | && (strcmp(peer->conf_if, ifc->ifp->name) == 0)) { | |
198 | peer->last_reset = PEER_DOWN_NBR_ADDR_DEL; | |
199 | BGP_EVENT_ADD(peer, BGP_Stop); | |
200 | } | |
201 | } | |
202 | /* Free neighbor also, if we're asked to. */ | |
203 | if (del) { | |
204 | ifp = ifc->ifp; | |
205 | listnode_delete(ifp->nbr_connected, ifc); | |
206 | nbr_connected_free(ifc); | |
207 | } | |
a80beece DS |
208 | } |
209 | ||
3c3c3252 | 210 | static int bgp_ifp_destroy(struct interface *ifp) |
718e3744 | 211 | { |
d62a17ae | 212 | struct bgp *bgp; |
718e3744 | 213 | |
3c3c3252 | 214 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
a4499b83 | 215 | |
d62a17ae | 216 | if (BGP_DEBUG(zebra, ZEBRA)) |
3835984f | 217 | zlog_debug("Rx Intf del VRF %u IF %s", ifp->vrf_id, ifp->name); |
a39275d7 | 218 | |
0d020cd6 | 219 | if (bgp) { |
85751d1d | 220 | bgp_update_interface_nbrs(bgp, ifp, NULL); |
0d020cd6 PR |
221 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
222 | } | |
64745052 | 223 | |
6a69ac51 DS |
224 | bgp_mac_del_mac_entry(ifp); |
225 | ||
d62a17ae | 226 | return 0; |
718e3744 | 227 | } |
228 | ||
ddbf3e60 | 229 | static int bgp_ifp_up(struct interface *ifp) |
718e3744 | 230 | { |
d62a17ae | 231 | struct connected *c; |
232 | struct nbr_connected *nc; | |
233 | struct listnode *node, *nnode; | |
234 | struct bgp *bgp; | |
6aeb9e78 | 235 | |
ddbf3e60 | 236 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 237 | |
6a69ac51 DS |
238 | bgp_mac_add_mac_entry(ifp); |
239 | ||
d62a17ae | 240 | if (BGP_DEBUG(zebra, ZEBRA)) |
ddbf3e60 | 241 | zlog_debug("Rx Intf up VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 242 | |
85751d1d DS |
243 | if (!bgp) |
244 | return 0; | |
245 | ||
d62a17ae | 246 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
247 | bgp_connected_add(bgp, c); | |
718e3744 | 248 | |
d62a17ae | 249 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
250 | bgp_nbr_connected_add(bgp, nc); | |
a80beece | 251 | |
0d020cd6 | 252 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
8761cd6d DS |
253 | bgp_nht_ifp_up(ifp); |
254 | ||
d62a17ae | 255 | return 0; |
718e3744 | 256 | } |
257 | ||
b0b69e59 | 258 | static int bgp_ifp_down(struct interface *ifp) |
718e3744 | 259 | { |
d62a17ae | 260 | struct connected *c; |
261 | struct nbr_connected *nc; | |
262 | struct listnode *node, *nnode; | |
263 | struct bgp *bgp; | |
c19fe3c7 | 264 | struct peer *peer; |
6aeb9e78 | 265 | |
b0b69e59 | 266 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); |
718e3744 | 267 | |
6a69ac51 DS |
268 | bgp_mac_del_mac_entry(ifp); |
269 | ||
d62a17ae | 270 | if (BGP_DEBUG(zebra, ZEBRA)) |
b0b69e59 | 271 | zlog_debug("Rx Intf down VRF %u IF %s", ifp->vrf_id, ifp->name); |
ad4cbda1 | 272 | |
85751d1d DS |
273 | if (!bgp) |
274 | return 0; | |
275 | ||
d62a17ae | 276 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
277 | bgp_connected_delete(bgp, c); | |
718e3744 | 278 | |
d62a17ae | 279 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
280 | bgp_nbr_connected_delete(bgp, nc, 1); | |
a80beece | 281 | |
d62a17ae | 282 | /* Fast external-failover */ |
c19fe3c7 | 283 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { |
718e3744 | 284 | |
d62a17ae | 285 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { |
50bd8995 | 286 | /* Take down directly connected peers. */ |
c8d6f0d6 | 287 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 | 288 | && (peer->gtsm_hops != BGP_GTSM_HOPS_CONNECTED)) |
d62a17ae | 289 | continue; |
718e3744 | 290 | |
d62a17ae | 291 | if (ifp == peer->nexthop.ifp) { |
292 | BGP_EVENT_ADD(peer, BGP_Stop); | |
293 | peer->last_reset = PEER_DOWN_IF_DOWN; | |
294 | } | |
295 | } | |
296 | } | |
718e3744 | 297 | |
0d020cd6 | 298 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
8761cd6d DS |
299 | bgp_nht_ifp_down(ifp); |
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 | ||
2dbe669b DA |
316 | if (bgp_debug_zebra(ifc->address)) |
317 | zlog_debug("Rx Intf address add VRF %u IF %s addr %pFX", vrf_id, | |
318 | ifc->ifp->name, ifc->address); | |
d62a17ae | 319 | |
85751d1d DS |
320 | if (!bgp) |
321 | return 0; | |
322 | ||
d62a17ae | 323 | if (if_is_operative(ifc->ifp)) { |
d62a17ae | 324 | bgp_connected_add(bgp, ifc); |
2f9123e0 | 325 | |
d62a17ae | 326 | /* If we have learnt of any neighbors on this interface, |
327 | * check to kick off any BGP interface-based neighbors, | |
328 | * but only if this is a link-local address. | |
329 | */ | |
330 | if (IN6_IS_ADDR_LINKLOCAL(&ifc->address->u.prefix6) | |
331 | && !list_isempty(ifc->ifp->nbr_connected)) | |
332 | bgp_start_interface_nbrs(bgp, ifc->ifp); | |
333 | } | |
334 | ||
335 | return 0; | |
718e3744 | 336 | } |
337 | ||
121f9dee | 338 | static int bgp_interface_address_delete(ZAPI_CALLBACK_ARGS) |
718e3744 | 339 | { |
d62a17ae | 340 | struct connected *ifc; |
341 | struct bgp *bgp; | |
6aeb9e78 | 342 | |
2f9123e0 | 343 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2f9123e0 | 344 | |
121f9dee | 345 | ifc = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
718e3744 | 346 | |
d62a17ae | 347 | if (ifc == NULL) |
348 | return 0; | |
718e3744 | 349 | |
2dbe669b DA |
350 | if (bgp_debug_zebra(ifc->address)) |
351 | zlog_debug("Rx Intf address del VRF %u IF %s addr %pFX", vrf_id, | |
352 | ifc->ifp->name, ifc->address); | |
a39275d7 | 353 | |
85751d1d | 354 | if (bgp && if_is_operative(ifc->ifp)) { |
2f9123e0 | 355 | bgp_connected_delete(bgp, ifc); |
d62a17ae | 356 | } |
718e3744 | 357 | |
721c0857 | 358 | connected_free(&ifc); |
718e3744 | 359 | |
d62a17ae | 360 | return 0; |
718e3744 | 361 | } |
362 | ||
121f9dee | 363 | static int bgp_interface_nbr_address_add(ZAPI_CALLBACK_ARGS) |
a80beece | 364 | { |
d62a17ae | 365 | struct nbr_connected *ifc = NULL; |
366 | struct bgp *bgp; | |
367 | ||
121f9dee | 368 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
d62a17ae | 369 | |
370 | if (ifc == NULL) | |
371 | return 0; | |
372 | ||
2dbe669b DA |
373 | if (bgp_debug_zebra(ifc->address)) |
374 | zlog_debug("Rx Intf neighbor add VRF %u IF %s addr %pFX", | |
375 | vrf_id, ifc->ifp->name, ifc->address); | |
d62a17ae | 376 | |
377 | if (if_is_operative(ifc->ifp)) { | |
378 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
379 | if (bgp) | |
380 | bgp_nbr_connected_add(bgp, ifc); | |
381 | } | |
382 | ||
383 | return 0; | |
a80beece DS |
384 | } |
385 | ||
121f9dee | 386 | static int bgp_interface_nbr_address_delete(ZAPI_CALLBACK_ARGS) |
a80beece | 387 | { |
d62a17ae | 388 | struct nbr_connected *ifc = NULL; |
389 | struct bgp *bgp; | |
6aeb9e78 | 390 | |
121f9dee | 391 | ifc = zebra_interface_nbr_address_read(cmd, zclient->ibuf, vrf_id); |
a80beece | 392 | |
d62a17ae | 393 | if (ifc == NULL) |
394 | return 0; | |
a80beece | 395 | |
2dbe669b DA |
396 | if (bgp_debug_zebra(ifc->address)) |
397 | zlog_debug("Rx Intf neighbor del VRF %u IF %s addr %pFX", | |
398 | vrf_id, ifc->ifp->name, ifc->address); | |
a80beece | 399 | |
d62a17ae | 400 | if (if_is_operative(ifc->ifp)) { |
401 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
402 | if (bgp) | |
403 | bgp_nbr_connected_delete(bgp, ifc, 0); | |
404 | } | |
a80beece | 405 | |
d62a17ae | 406 | nbr_connected_free(ifc); |
a80beece | 407 | |
d62a17ae | 408 | return 0; |
a80beece DS |
409 | } |
410 | ||
bfcd43b2 | 411 | /* VRF update for an interface. */ |
121f9dee | 412 | static int bgp_interface_vrf_update(ZAPI_CALLBACK_ARGS) |
bfcd43b2 | 413 | { |
d62a17ae | 414 | struct interface *ifp; |
415 | vrf_id_t new_vrf_id; | |
416 | struct connected *c; | |
417 | struct nbr_connected *nc; | |
418 | struct listnode *node, *nnode; | |
419 | struct bgp *bgp; | |
c19fe3c7 | 420 | struct peer *peer; |
bfcd43b2 | 421 | |
d62a17ae | 422 | ifp = zebra_interface_vrf_update_read(zclient->ibuf, vrf_id, |
423 | &new_vrf_id); | |
424 | if (!ifp) | |
425 | return 0; | |
bfcd43b2 | 426 | |
d62a17ae | 427 | if (BGP_DEBUG(zebra, ZEBRA) && ifp) |
428 | zlog_debug("Rx Intf VRF change VRF %u IF %s NewVRF %u", vrf_id, | |
429 | ifp->name, new_vrf_id); | |
bfcd43b2 | 430 | |
d62a17ae | 431 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
bfcd43b2 | 432 | |
85751d1d DS |
433 | if (bgp) { |
434 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) | |
435 | bgp_connected_delete(bgp, c); | |
bfcd43b2 | 436 | |
85751d1d DS |
437 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
438 | bgp_nbr_connected_delete(bgp, nc, 1); | |
bfcd43b2 | 439 | |
85751d1d DS |
440 | /* Fast external-failover */ |
441 | if (!CHECK_FLAG(bgp->flags, BGP_FLAG_NO_FAST_EXT_FAILOVER)) { | |
442 | for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer)) { | |
c8d6f0d6 | 443 | if ((peer->ttl != BGP_DEFAULT_TTL) |
e2521429 DA |
444 | && (peer->gtsm_hops |
445 | != BGP_GTSM_HOPS_CONNECTED)) | |
85751d1d | 446 | continue; |
bfcd43b2 | 447 | |
85751d1d DS |
448 | if (ifp == peer->nexthop.ifp) |
449 | BGP_EVENT_ADD(peer, BGP_Stop); | |
450 | } | |
d62a17ae | 451 | } |
452 | } | |
bfcd43b2 | 453 | |
a36898e7 | 454 | if_update_to_new_vrf(ifp, new_vrf_id); |
bfcd43b2 | 455 | |
d62a17ae | 456 | bgp = bgp_lookup_by_vrf_id(new_vrf_id); |
457 | if (!bgp) | |
458 | return 0; | |
bfcd43b2 | 459 | |
d62a17ae | 460 | for (ALL_LIST_ELEMENTS(ifp->connected, node, nnode, c)) |
461 | bgp_connected_add(bgp, c); | |
bfcd43b2 | 462 | |
d62a17ae | 463 | for (ALL_LIST_ELEMENTS(ifp->nbr_connected, node, nnode, nc)) |
464 | bgp_nbr_connected_add(bgp, nc); | |
0d020cd6 PR |
465 | |
466 | hook_call(bgp_vrf_status_changed, bgp, ifp); | |
d62a17ae | 467 | return 0; |
bfcd43b2 | 468 | } |
469 | ||
718e3744 | 470 | /* Zebra route add and delete treatment. */ |
121f9dee | 471 | static int zebra_read_route(ZAPI_CALLBACK_ARGS) |
718e3744 | 472 | { |
9de1f7ff | 473 | enum nexthop_types_t nhtype; |
74489921 RW |
474 | struct zapi_route api; |
475 | union g_addr nexthop; | |
9de1f7ff | 476 | ifindex_t ifindex; |
74489921 | 477 | int add, i; |
d62a17ae | 478 | struct bgp *bgp; |
479 | ||
480 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
481 | if (!bgp) | |
482 | return 0; | |
483 | ||
74489921 RW |
484 | if (zapi_route_decode(zclient->ibuf, &api) < 0) |
485 | return -1; | |
d62a17ae | 486 | |
74489921 RW |
487 | /* we completely ignore srcdest routes for now. */ |
488 | if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) | |
489 | return 0; | |
d62a17ae | 490 | |
74489921 RW |
491 | /* ignore link-local address. */ |
492 | if (api.prefix.family == AF_INET6 | |
493 | && IN6_IS_ADDR_LINKLOCAL(&api.prefix.u.prefix6)) | |
494 | return 0; | |
d62a17ae | 495 | |
74489921 RW |
496 | nexthop = api.nexthops[0].gate; |
497 | ifindex = api.nexthops[0].ifindex; | |
9de1f7ff | 498 | nhtype = api.nexthops[0].type; |
d62a17ae | 499 | |
121f9dee | 500 | add = (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD); |
74489921 | 501 | if (add) { |
d62a17ae | 502 | /* |
503 | * The ADD message is actually an UPDATE and there is no | |
504 | * explicit DEL | |
505 | * for a prior redistributed route, if any. So, perform an | |
506 | * implicit | |
507 | * DEL processing for the same redistributed route from any | |
508 | * other | |
509 | * source type. | |
510 | */ | |
511 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
512 | if (i != api.type) | |
74489921 | 513 | bgp_redistribute_delete(bgp, &api.prefix, i, |
d62a17ae | 514 | api.instance); |
515 | } | |
516 | ||
517 | /* Now perform the add/update. */ | |
74489921 | 518 | bgp_redistribute_add(bgp, &api.prefix, &nexthop, ifindex, |
a4d82a8a PZ |
519 | nhtype, api.metric, api.type, api.instance, |
520 | api.tag); | |
d62a17ae | 521 | } else { |
74489921 RW |
522 | bgp_redistribute_delete(bgp, &api.prefix, api.type, |
523 | api.instance); | |
a39275d7 | 524 | } |
d62a17ae | 525 | |
74489921 | 526 | if (bgp_debug_zebra(&api.prefix)) { |
2dbe669b | 527 | char buf[PREFIX_STRLEN]; |
74489921 | 528 | |
77e62f2b | 529 | if (add) { |
2dbe669b DA |
530 | inet_ntop(api.prefix.family, &nexthop, buf, |
531 | sizeof(buf)); | |
77e62f2b | 532 | zlog_debug( |
801bb996 | 533 | "Rx route ADD VRF %u %s[%d] %pFX nexthop %s (type %d if %u) metric %u distance %u tag %" ROUTE_TAG_PRI, |
77e62f2b | 534 | vrf_id, zebra_route_string(api.type), |
2dbe669b | 535 | api.instance, &api.prefix, buf, nhtype, ifindex, |
801bb996 | 536 | api.metric, api.distance, api.tag); |
77e62f2b | 537 | } else { |
6bdbcbf1 | 538 | zlog_debug("Rx route DEL VRF %u %s[%d] %pFX", vrf_id, |
2dbe669b | 539 | zebra_route_string(api.type), api.instance, |
6bdbcbf1 | 540 | &api.prefix); |
77e62f2b | 541 | } |
d62a17ae | 542 | } |
543 | ||
544 | return 0; | |
718e3744 | 545 | } |
6b0655a2 | 546 | |
d62a17ae | 547 | struct interface *if_lookup_by_ipv4(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 548 | { |
f4e14fdb | 549 | struct vrf *vrf; |
d62a17ae | 550 | struct listnode *cnode; |
551 | struct interface *ifp; | |
552 | struct connected *connected; | |
553 | struct prefix_ipv4 p; | |
554 | struct prefix *cp; | |
555 | ||
f4e14fdb RW |
556 | vrf = vrf_lookup_by_id(vrf_id); |
557 | if (!vrf) | |
558 | return NULL; | |
559 | ||
d62a17ae | 560 | p.family = AF_INET; |
561 | p.prefix = *addr; | |
562 | p.prefixlen = IPV4_MAX_BITLEN; | |
563 | ||
451fda4f | 564 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 565 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
566 | cp = connected->address; | |
567 | ||
568 | if (cp->family == AF_INET) | |
569 | if (prefix_match(cp, (struct prefix *)&p)) | |
570 | return ifp; | |
571 | } | |
718e3744 | 572 | } |
d62a17ae | 573 | return NULL; |
718e3744 | 574 | } |
575 | ||
d62a17ae | 576 | struct interface *if_lookup_by_ipv4_exact(struct in_addr *addr, vrf_id_t vrf_id) |
718e3744 | 577 | { |
f4e14fdb | 578 | struct vrf *vrf; |
d62a17ae | 579 | struct listnode *cnode; |
580 | struct interface *ifp; | |
581 | struct connected *connected; | |
582 | struct prefix *cp; | |
583 | ||
f4e14fdb RW |
584 | vrf = vrf_lookup_by_id(vrf_id); |
585 | if (!vrf) | |
586 | return NULL; | |
587 | ||
451fda4f | 588 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 589 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
590 | cp = connected->address; | |
591 | ||
592 | if (cp->family == AF_INET) | |
593 | if (IPV4_ADDR_SAME(&cp->u.prefix4, addr)) | |
594 | return ifp; | |
595 | } | |
718e3744 | 596 | } |
d62a17ae | 597 | return NULL; |
718e3744 | 598 | } |
599 | ||
d62a17ae | 600 | struct interface *if_lookup_by_ipv6(struct in6_addr *addr, ifindex_t ifindex, |
601 | vrf_id_t vrf_id) | |
718e3744 | 602 | { |
f4e14fdb | 603 | struct vrf *vrf; |
d62a17ae | 604 | struct listnode *cnode; |
605 | struct interface *ifp; | |
606 | struct connected *connected; | |
607 | struct prefix_ipv6 p; | |
608 | struct prefix *cp; | |
609 | ||
f4e14fdb RW |
610 | vrf = vrf_lookup_by_id(vrf_id); |
611 | if (!vrf) | |
612 | return NULL; | |
613 | ||
d62a17ae | 614 | p.family = AF_INET6; |
615 | p.prefix = *addr; | |
616 | p.prefixlen = IPV6_MAX_BITLEN; | |
617 | ||
451fda4f | 618 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 619 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
620 | cp = connected->address; | |
621 | ||
622 | if (cp->family == AF_INET6) | |
623 | if (prefix_match(cp, (struct prefix *)&p)) { | |
624 | if (IN6_IS_ADDR_LINKLOCAL( | |
625 | &cp->u.prefix6)) { | |
626 | if (ifindex == ifp->ifindex) | |
627 | return ifp; | |
628 | } else | |
629 | return ifp; | |
630 | } | |
631 | } | |
718e3744 | 632 | } |
d62a17ae | 633 | return NULL; |
718e3744 | 634 | } |
635 | ||
d62a17ae | 636 | struct interface *if_lookup_by_ipv6_exact(struct in6_addr *addr, |
637 | ifindex_t ifindex, vrf_id_t vrf_id) | |
718e3744 | 638 | { |
f4e14fdb | 639 | struct vrf *vrf; |
d62a17ae | 640 | struct listnode *cnode; |
641 | struct interface *ifp; | |
642 | struct connected *connected; | |
643 | struct prefix *cp; | |
644 | ||
f4e14fdb RW |
645 | vrf = vrf_lookup_by_id(vrf_id); |
646 | if (!vrf) | |
647 | return NULL; | |
648 | ||
451fda4f | 649 | FOR_ALL_INTERFACES (vrf, ifp) { |
d62a17ae | 650 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { |
651 | cp = connected->address; | |
652 | ||
653 | if (cp->family == AF_INET6) | |
654 | if (IPV6_ADDR_SAME(&cp->u.prefix6, addr)) { | |
655 | if (IN6_IS_ADDR_LINKLOCAL( | |
656 | &cp->u.prefix6)) { | |
657 | if (ifindex == ifp->ifindex) | |
658 | return ifp; | |
659 | } else | |
660 | return ifp; | |
661 | } | |
662 | } | |
718e3744 | 663 | } |
d62a17ae | 664 | return NULL; |
718e3744 | 665 | } |
666 | ||
d62a17ae | 667 | static int if_get_ipv6_global(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 668 | { |
d62a17ae | 669 | struct listnode *cnode; |
670 | struct connected *connected; | |
671 | struct prefix *cp; | |
672 | ||
673 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
674 | cp = connected->address; | |
675 | ||
676 | if (cp->family == AF_INET6) | |
677 | if (!IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
678 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
679 | return 1; | |
680 | } | |
681 | } | |
682 | return 0; | |
718e3744 | 683 | } |
684 | ||
d62a17ae | 685 | static int if_get_ipv6_local(struct interface *ifp, struct in6_addr *addr) |
718e3744 | 686 | { |
d62a17ae | 687 | struct listnode *cnode; |
688 | struct connected *connected; | |
689 | struct prefix *cp; | |
690 | ||
691 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
692 | cp = connected->address; | |
693 | ||
694 | if (cp->family == AF_INET6) | |
695 | if (IN6_IS_ADDR_LINKLOCAL(&cp->u.prefix6)) { | |
696 | memcpy(addr, &cp->u.prefix6, IPV6_MAX_BYTELEN); | |
697 | return 1; | |
698 | } | |
699 | } | |
700 | return 0; | |
718e3744 | 701 | } |
718e3744 | 702 | |
d62a17ae | 703 | static int if_get_ipv4_address(struct interface *ifp, struct in_addr *addr) |
6ee06fa9 | 704 | { |
d62a17ae | 705 | struct listnode *cnode; |
706 | struct connected *connected; | |
707 | struct prefix *cp; | |
708 | ||
709 | for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, connected)) { | |
710 | cp = connected->address; | |
711 | if ((cp->family == AF_INET) | |
712 | && !ipv4_martian(&(cp->u.prefix4))) { | |
713 | *addr = cp->u.prefix4; | |
714 | return 1; | |
715 | } | |
716 | } | |
717 | return 0; | |
6ee06fa9 PM |
718 | } |
719 | ||
17cdd31e DS |
720 | |
721 | bool bgp_zebra_nexthop_set(union sockunion *local, union sockunion *remote, | |
722 | struct bgp_nexthop *nexthop, struct peer *peer) | |
718e3744 | 723 | { |
d62a17ae | 724 | int ret = 0; |
725 | struct interface *ifp = NULL; | |
726 | ||
727 | memset(nexthop, 0, sizeof(struct bgp_nexthop)); | |
728 | ||
729 | if (!local) | |
17cdd31e | 730 | return false; |
d62a17ae | 731 | if (!remote) |
17cdd31e | 732 | return false; |
d62a17ae | 733 | |
734 | if (local->sa.sa_family == AF_INET) { | |
735 | nexthop->v4 = local->sin.sin_addr; | |
736 | if (peer->update_if) | |
737 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 738 | peer->bgp->vrf_id); |
d62a17ae | 739 | else |
740 | ifp = if_lookup_by_ipv4_exact(&local->sin.sin_addr, | |
741 | peer->bgp->vrf_id); | |
718e3744 | 742 | } |
d62a17ae | 743 | if (local->sa.sa_family == AF_INET6) { |
8f2b2139 | 744 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, IPV6_MAX_BYTELEN); |
d62a17ae | 745 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { |
746 | if (peer->conf_if || peer->ifname) | |
747 | ifp = if_lookup_by_name(peer->conf_if | |
748 | ? peer->conf_if | |
749 | : peer->ifname, | |
a36898e7 | 750 | peer->bgp->vrf_id); |
d62a17ae | 751 | } else if (peer->update_if) |
752 | ifp = if_lookup_by_name(peer->update_if, | |
a36898e7 | 753 | peer->bgp->vrf_id); |
d62a17ae | 754 | else |
755 | ifp = if_lookup_by_ipv6_exact(&local->sin6.sin6_addr, | |
756 | local->sin6.sin6_scope_id, | |
757 | peer->bgp->vrf_id); | |
718e3744 | 758 | } |
d62a17ae | 759 | |
17cdd31e DS |
760 | if (!ifp) { |
761 | /* | |
762 | * BGP views do not currently get proper data | |
763 | * from zebra( when attached ) to be able to | |
764 | * properly resolve nexthops, so give this | |
765 | * instance type a pass. | |
766 | */ | |
767 | if (peer->bgp->inst_type == BGP_INSTANCE_TYPE_VIEW) | |
768 | return true; | |
769 | /* | |
770 | * If we have no interface data but we have established | |
771 | * some connection w/ zebra than something has gone | |
772 | * terribly terribly wrong here, so say this failed | |
773 | * If we do not any zebra connection then not | |
774 | * having a ifp pointer is ok. | |
775 | */ | |
776 | return zclient_num_connects ? false : true; | |
777 | } | |
d62a17ae | 778 | |
779 | nexthop->ifp = ifp; | |
780 | ||
781 | /* IPv4 connection, fetch and store IPv6 local address(es) if any. */ | |
782 | if (local->sa.sa_family == AF_INET) { | |
783 | /* IPv6 nexthop*/ | |
784 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
785 | ||
786 | if (!ret) { | |
787 | /* There is no global nexthop. Use link-local address as | |
788 | * both the | |
789 | * global and link-local nexthop. In this scenario, the | |
790 | * expectation | |
791 | * for interop is that the network admin would use a | |
792 | * route-map to | |
793 | * specify the global IPv6 nexthop. | |
794 | */ | |
795 | if_get_ipv6_local(ifp, &nexthop->v6_global); | |
796 | memcpy(&nexthop->v6_local, &nexthop->v6_global, | |
797 | IPV6_MAX_BYTELEN); | |
798 | } else | |
799 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
800 | ||
801 | if (if_lookup_by_ipv4(&remote->sin.sin_addr, peer->bgp->vrf_id)) | |
802 | peer->shared_network = 1; | |
803 | else | |
804 | peer->shared_network = 0; | |
718e3744 | 805 | } |
718e3744 | 806 | |
d62a17ae | 807 | /* IPv6 connection, fetch and store IPv4 local address if any. */ |
808 | if (local->sa.sa_family == AF_INET6) { | |
809 | struct interface *direct = NULL; | |
810 | ||
811 | /* IPv4 nexthop. */ | |
812 | ret = if_get_ipv4_address(ifp, &nexthop->v4); | |
975a328e | 813 | if (!ret && peer->local_id.s_addr != INADDR_ANY) |
d62a17ae | 814 | nexthop->v4 = peer->local_id; |
815 | ||
816 | /* Global address*/ | |
817 | if (!IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr)) { | |
818 | memcpy(&nexthop->v6_global, &local->sin6.sin6_addr, | |
819 | IPV6_MAX_BYTELEN); | |
820 | ||
821 | /* If directory connected set link-local address. */ | |
822 | direct = if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
823 | remote->sin6.sin6_scope_id, | |
824 | peer->bgp->vrf_id); | |
825 | if (direct) | |
826 | if_get_ipv6_local(ifp, &nexthop->v6_local); | |
827 | } else | |
828 | /* Link-local address. */ | |
829 | { | |
830 | ret = if_get_ipv6_global(ifp, &nexthop->v6_global); | |
831 | ||
832 | /* If there is no global address. Set link-local | |
833 | address as | |
834 | global. I know this break RFC specification... */ | |
835 | /* In this scenario, the expectation for interop is that | |
836 | * the | |
837 | * network admin would use a route-map to specify the | |
838 | * global | |
839 | * IPv6 nexthop. | |
840 | */ | |
841 | if (!ret) | |
842 | memcpy(&nexthop->v6_global, | |
843 | &local->sin6.sin6_addr, | |
844 | IPV6_MAX_BYTELEN); | |
845 | /* Always set the link-local address */ | |
846 | memcpy(&nexthop->v6_local, &local->sin6.sin6_addr, | |
847 | IPV6_MAX_BYTELEN); | |
848 | } | |
849 | ||
850 | if (IN6_IS_ADDR_LINKLOCAL(&local->sin6.sin6_addr) | |
851 | || if_lookup_by_ipv6(&remote->sin6.sin6_addr, | |
852 | remote->sin6.sin6_scope_id, | |
853 | peer->bgp->vrf_id)) | |
854 | peer->shared_network = 1; | |
855 | else | |
856 | peer->shared_network = 0; | |
857 | } | |
718e3744 | 858 | |
d62a17ae | 859 | /* KAME stack specific treatment. */ |
718e3744 | 860 | #ifdef KAME |
d62a17ae | 861 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_global) |
862 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_global)) { | |
863 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_global, 0); | |
864 | } | |
865 | if (IN6_IS_ADDR_LINKLOCAL(&nexthop->v6_local) | |
866 | && IN6_LINKLOCAL_IFINDEX(nexthop->v6_local)) { | |
867 | SET_IN6_LINKLOCAL_IFINDEX(nexthop->v6_local, 0); | |
868 | } | |
718e3744 | 869 | #endif /* KAME */ |
e33a4880 | 870 | |
d62a17ae | 871 | /* If we have identified the local interface, there is no error for now. |
872 | */ | |
17cdd31e | 873 | return true; |
718e3744 | 874 | } |
875 | ||
18ee8310 | 876 | static struct in6_addr * |
40381db7 | 877 | bgp_path_info_to_ipv6_nexthop(struct bgp_path_info *path, ifindex_t *ifindex) |
73ac8160 | 878 | { |
d62a17ae | 879 | struct in6_addr *nexthop = NULL; |
880 | ||
881 | /* Only global address nexthop exists. */ | |
dc94fe42 RW |
882 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL |
883 | || path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_VPNV6_GLOBAL) { | |
40381db7 | 884 | nexthop = &path->attr->mp_nexthop_global; |
77e62f2b | 885 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 886 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 887 | } |
d62a17ae | 888 | |
889 | /* If both global and link-local address present. */ | |
dc94fe42 RW |
890 | if (path->attr->mp_nexthop_len == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL |
891 | || path->attr->mp_nexthop_len | |
892 | == BGP_ATTR_NHLEN_VPNV6_GLOBAL_AND_LL) { | |
d62a17ae | 893 | /* Check if route-map is set to prefer global over link-local */ |
40381db7 DS |
894 | if (path->attr->mp_nexthop_prefer_global) { |
895 | nexthop = &path->attr->mp_nexthop_global; | |
77e62f2b | 896 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 897 | *ifindex = path->attr->nh_ifindex; |
77e62f2b | 898 | } else { |
d62a17ae | 899 | /* Workaround for Cisco's nexthop bug. */ |
900 | if (IN6_IS_ADDR_UNSPECIFIED( | |
40381db7 | 901 | &path->attr->mp_nexthop_global) |
ab0e0f73 | 902 | && path->peer->su_remote |
40381db7 | 903 | && path->peer->su_remote->sa.sa_family |
59a0f1cb | 904 | == AF_INET6) { |
d62a17ae | 905 | nexthop = |
40381db7 | 906 | &path->peer->su_remote->sin6.sin6_addr; |
77e62f2b | 907 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 908 | *ifindex = path->peer->nexthop.ifp |
59a0f1cb | 909 | ->ifindex; |
77e62f2b | 910 | } else { |
40381db7 | 911 | nexthop = &path->attr->mp_nexthop_local; |
77e62f2b | 912 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) |
40381db7 | 913 | *ifindex = path->attr->nh_lla_ifindex; |
77e62f2b | 914 | } |
d62a17ae | 915 | } |
916 | } | |
917 | ||
918 | return nexthop; | |
73ac8160 DS |
919 | } |
920 | ||
b8685f9b | 921 | static bool bgp_table_map_apply(struct route_map *map, const struct prefix *p, |
3dc339cd | 922 | struct bgp_path_info *path) |
73ac8160 | 923 | { |
b4cb15c6 DL |
924 | route_map_result_t ret; |
925 | ||
1782514f | 926 | ret = route_map_apply(map, p, path); |
40381db7 | 927 | bgp_attr_flush(path->attr); |
b4cb15c6 DL |
928 | |
929 | if (ret != RMAP_DENYMATCH) | |
3dc339cd | 930 | return true; |
d62a17ae | 931 | |
932 | if (bgp_debug_zebra(p)) { | |
933 | if (p->family == AF_INET) { | |
d62a17ae | 934 | zlog_debug( |
c0d72166 DS |
935 | "Zebra rmap deny: IPv4 route %pFX nexthop %pI4", |
936 | p, &path->attr->nexthop); | |
d62a17ae | 937 | } |
938 | if (p->family == AF_INET6) { | |
939 | char buf[2][INET6_ADDRSTRLEN]; | |
77e62f2b | 940 | ifindex_t ifindex; |
941 | struct in6_addr *nexthop; | |
942 | ||
40381db7 | 943 | nexthop = bgp_path_info_to_ipv6_nexthop(path, &ifindex); |
d62a17ae | 944 | zlog_debug( |
8228a9a7 DS |
945 | "Zebra rmap deny: IPv6 route %pFX nexthop %s", |
946 | p, | |
6b9265a3 DA |
947 | nexthop ? inet_ntop(AF_INET6, nexthop, buf[1], |
948 | sizeof(buf[1])) | |
949 | : inet_ntop(AF_INET, | |
950 | &path->attr->nexthop, | |
951 | buf[1], sizeof(buf[1]))); | |
d62a17ae | 952 | } |
953 | } | |
3dc339cd | 954 | return false; |
73ac8160 DS |
955 | } |
956 | ||
b98f7728 PG |
957 | static struct thread *bgp_tm_thread_connect; |
958 | static bool bgp_tm_status_connected; | |
31c28cd7 PG |
959 | static bool bgp_tm_chunk_obtained; |
960 | #define BGP_FLOWSPEC_TABLE_CHUNK 100000 | |
961 | static uint32_t bgp_tm_min, bgp_tm_max, bgp_tm_chunk_size; | |
6818e7e5 | 962 | struct bgp *bgp_tm_bgp; |
b98f7728 PG |
963 | |
964 | static int bgp_zebra_tm_connect(struct thread *t) | |
965 | { | |
966 | struct zclient *zclient; | |
967 | int delay = 10, ret = 0; | |
968 | ||
969 | zclient = THREAD_ARG(t); | |
970 | if (bgp_tm_status_connected && zclient->sock > 0) | |
971 | delay = 60; | |
972 | else { | |
973 | bgp_tm_status_connected = false; | |
974 | ret = tm_table_manager_connect(zclient); | |
975 | } | |
976 | if (ret < 0) { | |
b7cd3069 | 977 | zlog_info("Error connecting to table manager!"); |
b98f7728 PG |
978 | bgp_tm_status_connected = false; |
979 | } else { | |
980 | if (!bgp_tm_status_connected) | |
981 | zlog_debug("Connecting to table manager. Success"); | |
982 | bgp_tm_status_connected = true; | |
31c28cd7 PG |
983 | if (!bgp_tm_chunk_obtained) { |
984 | if (bgp_zebra_get_table_range(bgp_tm_chunk_size, | |
985 | &bgp_tm_min, | |
6818e7e5 | 986 | &bgp_tm_max) >= 0) { |
31c28cd7 | 987 | bgp_tm_chunk_obtained = true; |
6818e7e5 PG |
988 | /* parse non installed entries */ |
989 | bgp_zebra_announce_table(bgp_tm_bgp, AFI_IP, SAFI_FLOWSPEC); | |
990 | } | |
31c28cd7 | 991 | } |
b98f7728 PG |
992 | } |
993 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, | |
994 | &bgp_tm_thread_connect); | |
995 | return 0; | |
996 | } | |
997 | ||
6818e7e5 PG |
998 | bool bgp_zebra_tm_chunk_obtained(void) |
999 | { | |
1000 | return bgp_tm_chunk_obtained; | |
1001 | } | |
1002 | ||
31c28cd7 PG |
1003 | uint32_t bgp_zebra_tm_get_id(void) |
1004 | { | |
1005 | static int table_id; | |
1006 | ||
1007 | if (!bgp_tm_chunk_obtained) | |
1008 | return ++table_id; | |
1009 | return bgp_tm_min++; | |
1010 | } | |
1011 | ||
6818e7e5 | 1012 | void bgp_zebra_init_tm_connect(struct bgp *bgp) |
b98f7728 PG |
1013 | { |
1014 | int delay = 1; | |
1015 | ||
1016 | /* if already set, do nothing | |
1017 | */ | |
1018 | if (bgp_tm_thread_connect != NULL) | |
1019 | return; | |
1020 | bgp_tm_status_connected = false; | |
31c28cd7 PG |
1021 | bgp_tm_chunk_obtained = false; |
1022 | bgp_tm_min = bgp_tm_max = 0; | |
1023 | bgp_tm_chunk_size = BGP_FLOWSPEC_TABLE_CHUNK; | |
6818e7e5 | 1024 | bgp_tm_bgp = bgp; |
b98f7728 PG |
1025 | thread_add_timer(bm->master, bgp_zebra_tm_connect, zclient, delay, |
1026 | &bgp_tm_thread_connect); | |
1027 | } | |
1028 | ||
1029 | int bgp_zebra_get_table_range(uint32_t chunk_size, | |
1030 | uint32_t *start, uint32_t *end) | |
1031 | { | |
1032 | int ret; | |
1033 | ||
1034 | if (!bgp_tm_status_connected) | |
1035 | return -1; | |
1036 | ret = tm_get_table_chunk(zclient, chunk_size, start, end); | |
1037 | if (ret < 0) { | |
e50f7cfd | 1038 | flog_err(EC_BGP_TABLE_CHUNK, |
1c50c1c0 | 1039 | "BGP: Error getting table chunk %u", chunk_size); |
b98f7728 PG |
1040 | return -1; |
1041 | } | |
1042 | zlog_info("BGP: Table Manager returns range from chunk %u is [%u %u]", | |
1043 | chunk_size, *start, *end); | |
1044 | return 0; | |
1045 | } | |
1046 | ||
3dc339cd DA |
1047 | static bool update_ipv4nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1048 | struct in_addr *nexthop, | |
1049 | struct attr *attr, bool is_evpn, | |
1050 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1051 | { |
1052 | api_nh->gate.ipv4 = *nexthop; | |
e1e71450 | 1053 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1054 | |
1055 | /* Need to set fields appropriately for EVPN routes imported into | |
1056 | * a VRF (which are programmed as onlink on l3-vni SVI) as well as | |
1057 | * connected routes leaked into a VRF. | |
1058 | */ | |
e1e71450 | 1059 | if (is_evpn) { |
77e62f2b | 1060 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
68a02e06 | 1061 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
e1e71450 | 1062 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1063 | } else if (nh_othervrf && | |
77e62f2b | 1064 | api_nh->gate.ipv4.s_addr == INADDR_ANY) { |
1065 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1066 | api_nh->ifindex = attr->nh_ifindex; | |
1067 | } else | |
1068 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
1069 | ||
3dc339cd | 1070 | return true; |
77e62f2b | 1071 | } |
1072 | ||
3dc339cd DA |
1073 | static bool update_ipv6nh_for_route_install(int nh_othervrf, struct bgp *nh_bgp, |
1074 | struct in6_addr *nexthop, | |
1075 | ifindex_t ifindex, | |
1076 | struct bgp_path_info *pi, | |
1077 | struct bgp_path_info *best_pi, | |
1078 | bool is_evpn, | |
1079 | struct zapi_nexthop *api_nh) | |
77e62f2b | 1080 | { |
1081 | struct attr *attr; | |
1082 | ||
40381db7 | 1083 | attr = pi->attr; |
e1e71450 | 1084 | api_nh->vrf_id = nh_bgp->vrf_id; |
77e62f2b | 1085 | |
e1e71450 | 1086 | if (is_evpn) { |
77e62f2b | 1087 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
68a02e06 | 1088 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
e1e71450 | 1089 | api_nh->ifindex = nh_bgp->l3vni_svi_ifindex; |
1090 | } else if (nh_othervrf) { | |
77e62f2b | 1091 | if (IN6_IS_ADDR_UNSPECIFIED(nexthop)) { |
1092 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
1093 | api_nh->ifindex = attr->nh_ifindex; | |
1094 | } else if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
1095 | if (ifindex == 0) | |
3dc339cd | 1096 | return false; |
77e62f2b | 1097 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1098 | api_nh->ifindex = ifindex; | |
1099 | } else { | |
1100 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1101 | api_nh->ifindex = 0; | |
1102 | } | |
1103 | } else { | |
1104 | if (IN6_IS_ADDR_LINKLOCAL(nexthop)) { | |
40381db7 DS |
1105 | if (pi == best_pi |
1106 | && attr->mp_nexthop_len | |
1107 | == BGP_ATTR_NHLEN_IPV6_GLOBAL_AND_LL) | |
1108 | if (pi->peer->nexthop.ifp) | |
1109 | ifindex = | |
1110 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1111 | if (!ifindex) { |
40381db7 DS |
1112 | if (pi->peer->conf_if) |
1113 | ifindex = pi->peer->ifp->ifindex; | |
1114 | else if (pi->peer->ifname) | |
77e62f2b | 1115 | ifindex = ifname2ifindex( |
40381db7 DS |
1116 | pi->peer->ifname, |
1117 | pi->peer->bgp->vrf_id); | |
1118 | else if (pi->peer->nexthop.ifp) | |
1119 | ifindex = | |
1120 | pi->peer->nexthop.ifp->ifindex; | |
77e62f2b | 1121 | } |
1122 | ||
1123 | if (ifindex == 0) | |
3dc339cd | 1124 | return false; |
77e62f2b | 1125 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; |
1126 | api_nh->ifindex = ifindex; | |
1127 | } else { | |
1128 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
1129 | api_nh->ifindex = 0; | |
1130 | } | |
1131 | } | |
c2ca3e25 PG |
1132 | if (nexthop) |
1133 | api_nh->gate.ipv6 = *nexthop; | |
77e62f2b | 1134 | |
3dc339cd | 1135 | return true; |
77e62f2b | 1136 | } |
1137 | ||
f7e1c681 | 1138 | static bool bgp_zebra_use_nhop_weighted(struct bgp *bgp, struct attr *attr, |
1139 | uint64_t tot_bw, uint32_t *nh_weight) | |
4e30bc2b | 1140 | { |
f7e1c681 | 1141 | uint32_t bw; |
1142 | uint64_t tmp; | |
1143 | ||
1144 | bw = attr->link_bw; | |
1145 | /* zero link-bandwidth and link-bandwidth not present are treated | |
1146 | * as the same situation. | |
1147 | */ | |
1148 | if (!bw) { | |
1149 | /* the only situations should be if we're either told | |
1150 | * to skip or use default weight. | |
1151 | */ | |
1152 | if (bgp->lb_handling == BGP_LINK_BW_SKIP_MISSING) | |
1153 | return false; | |
1154 | *nh_weight = BGP_ZEBRA_DEFAULT_NHOP_WEIGHT; | |
1155 | } else { | |
1156 | tmp = (uint64_t)bw * 100; | |
1157 | *nh_weight = ((uint32_t)(tmp / tot_bw)); | |
1158 | } | |
1159 | ||
1160 | return true; | |
4e30bc2b | 1161 | } |
1162 | ||
9bcb3eef | 1163 | void bgp_zebra_announce(struct bgp_dest *dest, const struct prefix *p, |
4b7e6066 | 1164 | struct bgp_path_info *info, struct bgp *bgp, afi_t afi, |
d62a17ae | 1165 | safi_t safi) |
718e3744 | 1166 | { |
7cc27d41 | 1167 | struct zapi_route api = { 0 }; |
9913029c | 1168 | struct zapi_nexthop *api_nh; |
2ad4f093 | 1169 | int nh_family; |
a74e593b | 1170 | unsigned int valid_nh_count = 0; |
2ad4f093 | 1171 | int has_valid_label = 0; |
1a9cb083 | 1172 | bool allow_recursion = false; |
d7c0a89a | 1173 | uint8_t distance; |
d62a17ae | 1174 | struct peer *peer; |
4b7e6066 | 1175 | struct bgp_path_info *mpinfo; |
d7c0a89a | 1176 | uint32_t metric; |
b4cb15c6 | 1177 | struct attr local_attr; |
4b7e6066 DS |
1178 | struct bgp_path_info local_info; |
1179 | struct bgp_path_info *mpinfo_cp = &local_info; | |
d62a17ae | 1180 | route_tag_t tag; |
1181 | mpls_label_t label; | |
ddb5b488 | 1182 | int nh_othervrf = 0; |
960035b2 | 1183 | char buf_prefix[PREFIX_STRLEN]; /* filled in if we are debugging */ |
3f54c705 | 1184 | bool is_evpn; |
06f16b2c | 1185 | bool nh_updated = false; |
4e30bc2b | 1186 | bool do_wt_ecmp; |
1187 | uint64_t cum_bw = 0; | |
6348981a AK |
1188 | uint32_t nhg_id = 0; |
1189 | bool is_add; | |
d62a17ae | 1190 | |
1191 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1192 | * know of this instance. | |
1193 | */ | |
1194 | if (!bgp_install_info_to_zebra(bgp)) | |
1195 | return; | |
1196 | ||
d62a17ae | 1197 | if (bgp->main_zebra_update_hold) |
1198 | return; | |
1199 | ||
960035b2 | 1200 | if (bgp_debug_zebra(p)) |
ba1976db | 1201 | prefix2str(p, buf_prefix, sizeof(buf_prefix)); |
960035b2 | 1202 | |
d90b788e | 1203 | if (safi == SAFI_FLOWSPEC) { |
9bcb3eef DS |
1204 | bgp_pbr_update_entry(bgp, bgp_dest_get_prefix(dest), info, afi, |
1205 | safi, true); | |
d90b788e A |
1206 | return; |
1207 | } | |
529efa23 | 1208 | |
ddb5b488 PZ |
1209 | /* |
1210 | * vrf leaking support (will have only one nexthop) | |
1211 | */ | |
1212 | if (info->extra && info->extra->bgp_orig) | |
1213 | nh_othervrf = 1; | |
1214 | ||
9913029c | 1215 | /* Make Zebra API structure. */ |
9913029c RW |
1216 | api.vrf_id = bgp->vrf_id; |
1217 | api.type = ZEBRA_ROUTE_BGP; | |
1218 | api.safi = safi; | |
1219 | api.prefix = *p; | |
1220 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
1221 | ||
d62a17ae | 1222 | peer = info->peer; |
1223 | ||
ddb5b488 PZ |
1224 | if (info->type == ZEBRA_ROUTE_BGP |
1225 | && info->sub_type == BGP_ROUTE_IMPORTED) { | |
1226 | ||
1ec90b5e | 1227 | /* Obtain peer from parent */ |
1228 | if (info->extra && info->extra->parent) | |
4b7e6066 DS |
1229 | peer = ((struct bgp_path_info *)(info->extra->parent)) |
1230 | ->peer; | |
ddb5b488 PZ |
1231 | } |
1232 | ||
d62a17ae | 1233 | tag = info->attr->tag; |
1234 | ||
88493076 | 1235 | /* If the route's source is EVPN, flag as such. */ |
77e62f2b | 1236 | is_evpn = is_route_parent_evpn(info); |
1237 | if (is_evpn) | |
90264d64 | 1238 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
d3135ba3 | 1239 | |
d62a17ae | 1240 | if (peer->sort == BGP_PEER_IBGP || peer->sort == BGP_PEER_CONFED |
1241 | || info->sub_type == BGP_ROUTE_AGGREGATE) { | |
9913029c | 1242 | SET_FLAG(api.flags, ZEBRA_FLAG_IBGP); |
4e8b02f4 | 1243 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
718e3744 | 1244 | } |
a39275d7 | 1245 | |
c8d6f0d6 | 1246 | if ((peer->sort == BGP_PEER_EBGP && peer->ttl != BGP_DEFAULT_TTL) |
d62a17ae | 1247 | || CHECK_FLAG(peer->flags, PEER_FLAG_DISABLE_CONNECTED_CHECK) |
892fedb6 | 1248 | || CHECK_FLAG(bgp->flags, BGP_FLAG_DISABLE_NH_CONNECTED_CHK)) |
d62a17ae | 1249 | |
1a9cb083 | 1250 | allow_recursion = true; |
d62a17ae | 1251 | |
951745bd PG |
1252 | if (info->attr->rmap_table_id) { |
1253 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1254 | api.tableid = info->attr->rmap_table_id; | |
1255 | } | |
1256 | ||
ef3e0d04 SM |
1257 | if (CHECK_FLAG(info->attr->flag, ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) |
1258 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
1259 | ||
2ad4f093 RW |
1260 | /* Metric is currently based on the best-path only */ |
1261 | metric = info->attr->med; | |
4e30bc2b | 1262 | |
1263 | /* Determine if we're doing weighted ECMP or not */ | |
f7e1c681 | 1264 | do_wt_ecmp = bgp_path_info_mpath_chkwtd(bgp, info); |
4e30bc2b | 1265 | if (do_wt_ecmp) |
1266 | cum_bw = bgp_path_info_mpath_cumbw(info); | |
1267 | ||
6348981a | 1268 | /* EVPN MAC-IP routes are installed with a L3 NHG id */ |
8bcb09a1 | 1269 | if (bgp_evpn_path_es_use_nhg(bgp, info, &nhg_id)) { |
6348981a | 1270 | mpinfo = NULL; |
8bcb09a1 AK |
1271 | api.nhgid = nhg_id; |
1272 | if (nhg_id) | |
1273 | SET_FLAG(api.message, ZAPI_MESSAGE_NHG); | |
1274 | } else { | |
6348981a | 1275 | mpinfo = info; |
8bcb09a1 | 1276 | } |
6348981a AK |
1277 | |
1278 | for (; mpinfo; mpinfo = bgp_path_info_mpath_next(mpinfo)) { | |
f7e1c681 | 1279 | uint32_t nh_weight; |
1280 | ||
a74e593b RW |
1281 | if (valid_nh_count >= multipath_num) |
1282 | break; | |
1283 | ||
b4cb15c6 | 1284 | *mpinfo_cp = *mpinfo; |
f7e1c681 | 1285 | nh_weight = 0; |
b4cb15c6 | 1286 | |
d0d695f4 RW |
1287 | /* Get nexthop address-family */ |
1288 | if (p->family == AF_INET | |
1289 | && !BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr)) | |
1290 | nh_family = AF_INET; | |
1291 | else if (p->family == AF_INET6 | |
1292 | || (p->family == AF_INET | |
1293 | && BGP_ATTR_NEXTHOP_AFI_IP6(mpinfo_cp->attr))) | |
1294 | nh_family = AF_INET6; | |
1295 | else | |
1296 | continue; | |
1297 | ||
f7e1c681 | 1298 | /* If processing for weighted ECMP, determine the next hop's |
1299 | * weight. Based on user setting, we may skip the next hop | |
1300 | * in some situations. | |
1301 | */ | |
1302 | if (do_wt_ecmp) { | |
1303 | if (!bgp_zebra_use_nhop_weighted(bgp, mpinfo->attr, | |
1304 | cum_bw, &nh_weight)) | |
1305 | continue; | |
1306 | } | |
1374aec9 | 1307 | api_nh = &api.nexthops[valid_nh_count]; |
ef3e0d04 SM |
1308 | |
1309 | if (CHECK_FLAG(info->attr->flag, | |
1310 | ATTR_FLAG_BIT(BGP_ATTR_SRTE_COLOR))) | |
1311 | api_nh->srte_color = info->attr->srte_color; | |
1312 | ||
257b7b6e DS |
1313 | if (bgp_debug_zebra(&api.prefix)) { |
1314 | if (mpinfo->extra) { | |
1315 | zlog_debug("%s: p=%s, bgp_is_valid_label: %d", | |
1316 | __func__, buf_prefix, | |
1317 | bgp_is_valid_label( | |
1318 | &mpinfo->extra->label[0])); | |
1319 | } else { | |
1320 | zlog_debug("%s: p=%s, extra is NULL, no label", | |
1321 | __func__, buf_prefix); | |
ddb5b488 | 1322 | } |
257b7b6e | 1323 | } |
ddb5b488 | 1324 | |
257b7b6e DS |
1325 | if (bgp->table_map[afi][safi].name) { |
1326 | /* Copy info and attributes, so the route-map | |
1327 | apply doesn't modify the BGP route info. */ | |
1328 | local_attr = *mpinfo->attr; | |
1329 | mpinfo_cp->attr = &local_attr; | |
1330 | if (!bgp_table_map_apply(bgp->table_map[afi][safi].map, | |
1331 | p, mpinfo_cp)) | |
1332 | continue; | |
b4cb15c6 | 1333 | |
257b7b6e DS |
1334 | /* metric/tag is only allowed to be |
1335 | * overridden on 1st nexthop */ | |
1336 | if (mpinfo == info) { | |
1337 | metric = mpinfo_cp->attr->med; | |
1338 | tag = mpinfo_cp->attr->tag; | |
b4cb15c6 | 1339 | } |
257b7b6e | 1340 | } |
d62a17ae | 1341 | |
257b7b6e | 1342 | if (nh_family == AF_INET) { |
77e62f2b | 1343 | nh_updated = update_ipv4nh_for_route_install( |
1344 | nh_othervrf, | |
e1e71450 | 1345 | nh_othervrf ? |
1346 | info->extra->bgp_orig : bgp, | |
77e62f2b | 1347 | &mpinfo_cp->attr->nexthop, |
1348 | mpinfo_cp->attr, is_evpn, api_nh); | |
2ad4f093 | 1349 | } else { |
f220da99 | 1350 | ifindex_t ifindex = IFINDEX_INTERNAL; |
2ad4f093 | 1351 | struct in6_addr *nexthop; |
9913029c | 1352 | |
18ee8310 DS |
1353 | nexthop = bgp_path_info_to_ipv6_nexthop(mpinfo_cp, |
1354 | &ifindex); | |
00c10664 DA |
1355 | |
1356 | if (!nexthop) | |
1357 | nh_updated = update_ipv4nh_for_route_install( | |
1358 | nh_othervrf, | |
1359 | nh_othervrf ? info->extra->bgp_orig | |
1360 | : bgp, | |
1361 | &mpinfo_cp->attr->nexthop, | |
1362 | mpinfo_cp->attr, is_evpn, api_nh); | |
1363 | else | |
1364 | nh_updated = update_ipv6nh_for_route_install( | |
1365 | nh_othervrf, | |
1366 | nh_othervrf ? info->extra->bgp_orig | |
1367 | : bgp, | |
1368 | nexthop, ifindex, mpinfo, info, is_evpn, | |
1369 | api_nh); | |
2ad4f093 | 1370 | } |
d62a17ae | 1371 | |
77e62f2b | 1372 | /* Did we get proper nexthop info to update zebra? */ |
1373 | if (!nh_updated) | |
1374 | continue; | |
1375 | ||
1a9cb083 JM |
1376 | /* Allow recursion if it is a multipath group with both |
1377 | * eBGP and iBGP paths. | |
1378 | */ | |
1379 | if (!allow_recursion | |
1380 | && CHECK_FLAG(bgp->flags, BGP_FLAG_PEERTYPE_MULTIPATH_RELAX) | |
1381 | && (mpinfo->peer->sort == BGP_PEER_IBGP | |
1382 | || mpinfo->peer->sort == BGP_PEER_CONFED)) | |
1383 | allow_recursion = true; | |
1384 | ||
a4d82a8a PZ |
1385 | if (mpinfo->extra |
1386 | && bgp_is_valid_label(&mpinfo->extra->label[0]) | |
90264d64 | 1387 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) { |
2ad4f093 | 1388 | has_valid_label = 1; |
b57ba6d2 | 1389 | label = label_pton(&mpinfo->extra->label[0]); |
9913029c | 1390 | |
68a02e06 MS |
1391 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
1392 | ||
2ad4f093 RW |
1393 | api_nh->label_num = 1; |
1394 | api_nh->labels[0] = label; | |
d62a17ae | 1395 | } |
22e63104 | 1396 | memcpy(&api_nh->rmac, &(mpinfo->attr->rmac), |
1397 | sizeof(struct ethaddr)); | |
f7e1c681 | 1398 | api_nh->weight = nh_weight; |
4e30bc2b | 1399 | |
2ad4f093 RW |
1400 | valid_nh_count++; |
1401 | } | |
d62a17ae | 1402 | |
6348981a AK |
1403 | is_add = (valid_nh_count || nhg_id) ? true : false; |
1404 | ||
ec0acb80 | 1405 | if (is_add && CHECK_FLAG(bm->flags, BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA)) { |
e46723a5 DS |
1406 | struct aspath *aspath = info->attr->aspath; |
1407 | ||
1408 | SET_FLAG(api.message, ZAPI_MESSAGE_OPAQUE); | |
1409 | api.opaque.length = strlen(aspath->str) + 1; | |
1410 | memcpy(api.opaque.data, aspath->str, api.opaque.length); | |
1411 | } | |
1412 | ||
1a9cb083 JM |
1413 | if (allow_recursion) |
1414 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); | |
1415 | ||
5cc347c4 DS |
1416 | /* |
1417 | * When we create an aggregate route we must also | |
1418 | * install a Null0 route in the RIB, so overwrite | |
1419 | * what was written into api with a blackhole route | |
1420 | */ | |
1421 | if (info->sub_type == BGP_ROUTE_AGGREGATE) | |
1422 | zapi_route_set_blackhole(&api, BLACKHOLE_NULL); | |
1423 | else | |
2ad4f093 | 1424 | api.nexthop_num = valid_nh_count; |
d62a17ae | 1425 | |
2ad4f093 RW |
1426 | SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); |
1427 | api.metric = metric; | |
d62a17ae | 1428 | |
2ad4f093 RW |
1429 | if (tag) { |
1430 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); | |
1431 | api.tag = tag; | |
1432 | } | |
d62a17ae | 1433 | |
2ad4f093 RW |
1434 | distance = bgp_distance_apply(p, info, afi, safi, bgp); |
1435 | if (distance) { | |
1436 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
1437 | api.distance = distance; | |
1438 | } | |
d62a17ae | 1439 | |
2ad4f093 | 1440 | if (bgp_debug_zebra(p)) { |
2ad4f093 | 1441 | char nh_buf[INET6_ADDRSTRLEN]; |
d8744f72 CS |
1442 | char eth_buf[ETHER_ADDR_STRLEN + 7] = {'\0'}; |
1443 | char buf1[ETHER_ADDR_STRLEN]; | |
2ad4f093 RW |
1444 | char label_buf[20]; |
1445 | int i; | |
1446 | ||
2dbe669b DA |
1447 | zlog_debug( |
1448 | "Tx route %s VRF %u %pFX metric %u tag %" ROUTE_TAG_PRI | |
6348981a | 1449 | " count %d nhg %d", |
2dbe669b | 1450 | valid_nh_count ? "add" : "delete", bgp->vrf_id, |
6348981a AK |
1451 | &api.prefix, api.metric, api.tag, api.nexthop_num, |
1452 | nhg_id); | |
2ad4f093 RW |
1453 | for (i = 0; i < api.nexthop_num; i++) { |
1454 | api_nh = &api.nexthops[i]; | |
1455 | ||
1ee069db CS |
1456 | switch (api_nh->type) { |
1457 | case NEXTHOP_TYPE_IFINDEX: | |
77e62f2b | 1458 | nh_buf[0] = '\0'; |
1ee069db CS |
1459 | break; |
1460 | case NEXTHOP_TYPE_IPV4: | |
1461 | case NEXTHOP_TYPE_IPV4_IFINDEX: | |
1462 | nh_family = AF_INET; | |
77e62f2b | 1463 | inet_ntop(nh_family, &api_nh->gate, nh_buf, |
1464 | sizeof(nh_buf)); | |
1ee069db CS |
1465 | break; |
1466 | case NEXTHOP_TYPE_IPV6: | |
1467 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
1468 | nh_family = AF_INET6; | |
1469 | inet_ntop(nh_family, &api_nh->gate, nh_buf, | |
1470 | sizeof(nh_buf)); | |
1471 | break; | |
1472 | case NEXTHOP_TYPE_BLACKHOLE: | |
1473 | strlcpy(nh_buf, "blackhole", sizeof(nh_buf)); | |
1474 | break; | |
1475 | default: | |
1476 | /* Note: add new nexthop case */ | |
1477 | assert(0); | |
1478 | break; | |
77e62f2b | 1479 | } |
2ad4f093 RW |
1480 | |
1481 | label_buf[0] = '\0'; | |
d8744f72 | 1482 | eth_buf[0] = '\0'; |
a4d82a8a PZ |
1483 | if (has_valid_label |
1484 | && !CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE)) | |
a7799788 CS |
1485 | snprintf(label_buf, sizeof(label_buf), |
1486 | "label %u", api_nh->labels[0]); | |
d8744f72 CS |
1487 | if (CHECK_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE) |
1488 | && !is_zero_mac(&api_nh->rmac)) | |
a7799788 CS |
1489 | snprintf(eth_buf, sizeof(eth_buf), " RMAC %s", |
1490 | prefix_mac2str(&api_nh->rmac, | |
1491 | buf1, sizeof(buf1))); | |
4e30bc2b | 1492 | zlog_debug(" nhop [%d]: %s if %u VRF %u wt %u %s %s", |
77e62f2b | 1493 | i + 1, nh_buf, api_nh->ifindex, |
4e30bc2b | 1494 | api_nh->vrf_id, api_nh->weight, |
1495 | label_buf, eth_buf); | |
d62a17ae | 1496 | } |
2ad4f093 | 1497 | |
960035b2 PZ |
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 | } | |
6348981a | 1507 | zclient_route_send(is_add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, |
2ad4f093 | 1508 | zclient, &api); |
718e3744 | 1509 | } |
1510 | ||
73ac8160 | 1511 | /* Announce all routes of a table to zebra */ |
d62a17ae | 1512 | void bgp_zebra_announce_table(struct bgp *bgp, afi_t afi, safi_t safi) |
73ac8160 | 1513 | { |
9bcb3eef | 1514 | struct bgp_dest *dest; |
d62a17ae | 1515 | struct bgp_table *table; |
40381db7 | 1516 | struct bgp_path_info *pi; |
d62a17ae | 1517 | |
1518 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't | |
1519 | * know of this instance. | |
1520 | */ | |
1521 | if (!bgp_install_info_to_zebra(bgp)) | |
1522 | return; | |
1523 | ||
1524 | table = bgp->rib[afi][safi]; | |
1525 | if (!table) | |
1526 | return; | |
1527 | ||
9bcb3eef DS |
1528 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) |
1529 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
40381db7 | 1530 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && |
ddb5b488 | 1531 | |
40381db7 DS |
1532 | (pi->type == ZEBRA_ROUTE_BGP |
1533 | && (pi->sub_type == BGP_ROUTE_NORMAL | |
1534 | || pi->sub_type == BGP_ROUTE_IMPORTED))) | |
ddb5b488 | 1535 | |
9bcb3eef DS |
1536 | bgp_zebra_announce(dest, |
1537 | bgp_dest_get_prefix(dest), | |
b54892e0 | 1538 | pi, bgp, afi, safi); |
73ac8160 DS |
1539 | } |
1540 | ||
c163f297 DS |
1541 | /* Announce routes of any bgp subtype of a table to zebra */ |
1542 | void bgp_zebra_announce_table_all_subtypes(struct bgp *bgp, afi_t afi, | |
1543 | safi_t safi) | |
1544 | { | |
1545 | struct bgp_dest *dest; | |
1546 | struct bgp_table *table; | |
1547 | struct bgp_path_info *pi; | |
1548 | ||
1549 | if (!bgp_install_info_to_zebra(bgp)) | |
1550 | return; | |
1551 | ||
1552 | table = bgp->rib[afi][safi]; | |
1553 | if (!table) | |
1554 | return; | |
1555 | ||
1556 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) | |
1557 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) | |
1558 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) && | |
1559 | pi->type == ZEBRA_ROUTE_BGP) | |
1560 | bgp_zebra_announce(dest, | |
1561 | bgp_dest_get_prefix(dest), | |
1562 | pi, bgp, afi, safi); | |
1563 | } | |
1564 | ||
5a1ae2c2 | 1565 | void bgp_zebra_withdraw(const struct prefix *p, struct bgp_path_info *info, |
568e10ca | 1566 | struct bgp *bgp, safi_t safi) |
718e3744 | 1567 | { |
2ad4f093 | 1568 | struct zapi_route api; |
f7df1907 | 1569 | struct peer *peer; |
ddb5b488 | 1570 | |
d62a17ae | 1571 | /* Don't try to install if we're not connected to Zebra or Zebra doesn't |
1572 | * know of this instance. | |
1573 | */ | |
568e10ca | 1574 | if (!bgp_install_info_to_zebra(bgp)) |
d62a17ae | 1575 | return; |
1576 | ||
f7df1907 PG |
1577 | if (safi == SAFI_FLOWSPEC) { |
1578 | peer = info->peer; | |
d90b788e A |
1579 | bgp_pbr_update_entry(peer->bgp, p, info, AFI_IP, safi, false); |
1580 | return; | |
f7df1907 | 1581 | } |
529efa23 | 1582 | |
2ad4f093 | 1583 | memset(&api, 0, sizeof(api)); |
568e10ca | 1584 | api.vrf_id = bgp->vrf_id; |
2ad4f093 RW |
1585 | api.type = ZEBRA_ROUTE_BGP; |
1586 | api.safi = safi; | |
1587 | api.prefix = *p; | |
d62a17ae | 1588 | |
1276ce38 PG |
1589 | if (info->attr->rmap_table_id) { |
1590 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
1591 | api.tableid = info->attr->rmap_table_id; | |
1592 | } | |
1593 | ||
88493076 | 1594 | /* If the route's source is EVPN, flag as such. */ |
1595 | if (is_route_parent_evpn(info)) | |
90264d64 | 1596 | SET_FLAG(api.flags, ZEBRA_FLAG_EVPN_ROUTE); |
01740ff4 | 1597 | |
2dbe669b DA |
1598 | if (bgp_debug_zebra(p)) |
1599 | zlog_debug("Tx route delete VRF %u %pFX", bgp->vrf_id, | |
1600 | &api.prefix); | |
d62a17ae | 1601 | |
2ad4f093 | 1602 | zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api); |
718e3744 | 1603 | } |
56c1f7d8 | 1604 | |
c163f297 DS |
1605 | /* Withdraw all entries in a BGP instances RIB table from Zebra */ |
1606 | void bgp_zebra_withdraw_table_all_subtypes(struct bgp *bgp, afi_t afi, safi_t safi) | |
1607 | { | |
1608 | struct bgp_dest *dest; | |
1609 | struct bgp_table *table; | |
1610 | struct bgp_path_info *pi; | |
1611 | ||
1612 | if (!bgp_install_info_to_zebra(bgp)) | |
1613 | return; | |
1614 | ||
1615 | table = bgp->rib[afi][safi]; | |
1616 | if (!table) | |
1617 | return; | |
1618 | ||
1619 | for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) { | |
1620 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
1621 | if (CHECK_FLAG(pi->flags, BGP_PATH_SELECTED) | |
1622 | && (pi->type == ZEBRA_ROUTE_BGP)) | |
1623 | bgp_zebra_withdraw(bgp_dest_get_prefix(dest), | |
1624 | pi, bgp, safi); | |
1625 | } | |
1626 | } | |
1627 | } | |
1628 | ||
d7c0a89a QY |
1629 | struct bgp_redist *bgp_redist_lookup(struct bgp *bgp, afi_t afi, uint8_t type, |
1630 | unsigned short instance) | |
7c8ff89e | 1631 | { |
d62a17ae | 1632 | struct list *red_list; |
1633 | struct listnode *node; | |
1634 | struct bgp_redist *red; | |
7c8ff89e | 1635 | |
d62a17ae | 1636 | red_list = bgp->redist[afi][type]; |
1637 | if (!red_list) | |
1638 | return (NULL); | |
7c8ff89e | 1639 | |
d62a17ae | 1640 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) |
1641 | if (red->instance == instance) | |
1642 | return red; | |
7c8ff89e | 1643 | |
d62a17ae | 1644 | return NULL; |
7c8ff89e DS |
1645 | } |
1646 | ||
d7c0a89a QY |
1647 | struct bgp_redist *bgp_redist_add(struct bgp *bgp, afi_t afi, uint8_t type, |
1648 | unsigned short instance) | |
7c8ff89e | 1649 | { |
d62a17ae | 1650 | struct list *red_list; |
1651 | struct bgp_redist *red; | |
7c8ff89e | 1652 | |
d62a17ae | 1653 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1654 | if (red) | |
1655 | return red; | |
7c8ff89e | 1656 | |
d62a17ae | 1657 | if (!bgp->redist[afi][type]) |
1658 | bgp->redist[afi][type] = list_new(); | |
7c8ff89e | 1659 | |
d62a17ae | 1660 | red_list = bgp->redist[afi][type]; |
9f5dc319 | 1661 | red = XCALLOC(MTYPE_BGP_REDIST, sizeof(struct bgp_redist)); |
d62a17ae | 1662 | red->instance = instance; |
7c8ff89e | 1663 | |
d62a17ae | 1664 | listnode_add(red_list, red); |
7c8ff89e | 1665 | |
d62a17ae | 1666 | return red; |
7c8ff89e DS |
1667 | } |
1668 | ||
d7c0a89a QY |
1669 | static void bgp_redist_del(struct bgp *bgp, afi_t afi, uint8_t type, |
1670 | unsigned short instance) | |
7c8ff89e | 1671 | { |
d62a17ae | 1672 | struct bgp_redist *red; |
1673 | ||
1674 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1675 | ||
1676 | if (red) { | |
1677 | listnode_delete(bgp->redist[afi][type], red); | |
1678 | XFREE(MTYPE_BGP_REDIST, red); | |
acdf5e25 | 1679 | if (!bgp->redist[afi][type]->count) |
6a154c88 | 1680 | list_delete(&bgp->redist[afi][type]); |
d62a17ae | 1681 | } |
7c8ff89e | 1682 | } |
6b0655a2 | 1683 | |
718e3744 | 1684 | /* Other routes redistribution into BGP. */ |
d7c0a89a | 1685 | int bgp_redistribute_set(struct bgp *bgp, afi_t afi, int type, |
e923dd62 | 1686 | unsigned short instance, bool changed) |
718e3744 | 1687 | { |
e923dd62 | 1688 | /* If redistribute options are changed call |
1689 | * bgp_redistribute_unreg() to reset the option and withdraw | |
1690 | * the routes | |
1691 | */ | |
1692 | if (changed) | |
1693 | bgp_redistribute_unreg(bgp, afi, type, instance); | |
718e3744 | 1694 | |
d62a17ae | 1695 | /* Return if already redistribute flag is set. */ |
1696 | if (instance) { | |
1697 | if (redist_check_instance(&zclient->mi_redist[afi][type], | |
1698 | instance)) | |
1699 | return CMD_WARNING; | |
718e3744 | 1700 | |
d62a17ae | 1701 | redist_add_instance(&zclient->mi_redist[afi][type], instance); |
1702 | } else { | |
49e5a4a0 | 1703 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1704 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
d62a17ae | 1705 | vnc_export_bgp_enable( |
1706 | bgp, afi); /* only enables if mode bits cfg'd */ | |
1707 | } | |
65efcfce LB |
1708 | #endif |
1709 | ||
d62a17ae | 1710 | vrf_bitmap_set(zclient->redist[afi][type], bgp->vrf_id); |
1711 | } | |
718e3744 | 1712 | |
ea12cf11 DS |
1713 | /* |
1714 | * Don't try to register if we're not connected to Zebra or Zebra | |
1715 | * doesn't know of this instance. | |
1716 | * | |
1717 | * When we come up later well resend if needed. | |
d62a17ae | 1718 | */ |
1719 | if (!bgp_install_info_to_zebra(bgp)) | |
ea12cf11 | 1720 | return CMD_SUCCESS; |
a39275d7 | 1721 | |
d62a17ae | 1722 | if (BGP_DEBUG(zebra, ZEBRA)) |
1723 | zlog_debug("Tx redistribute add VRF %u afi %d %s %d", | |
1724 | bgp->vrf_id, afi, zebra_route_string(type), | |
1725 | instance); | |
518f0eb1 | 1726 | |
d62a17ae | 1727 | /* Send distribute add message to zebra. */ |
1728 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1729 | instance, bgp->vrf_id); | |
718e3744 | 1730 | |
d62a17ae | 1731 | return CMD_SUCCESS; |
718e3744 | 1732 | } |
1733 | ||
d62a17ae | 1734 | int bgp_redistribute_resend(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1735 | unsigned short instance) |
518f0eb1 | 1736 | { |
d62a17ae | 1737 | /* Don't try to send if we're not connected to Zebra or Zebra doesn't |
1738 | * know of this instance. | |
1739 | */ | |
1740 | if (!bgp_install_info_to_zebra(bgp)) | |
1741 | return -1; | |
1742 | ||
1743 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1744 | zlog_debug("Tx redistribute del/add VRF %u afi %d %s %d", | |
1745 | bgp->vrf_id, afi, zebra_route_string(type), | |
1746 | instance); | |
1747 | ||
1748 | /* Send distribute add message to zebra. */ | |
1749 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, | |
1750 | instance, bgp->vrf_id); | |
1751 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, | |
1752 | instance, bgp->vrf_id); | |
1753 | ||
1754 | return 0; | |
518f0eb1 DS |
1755 | } |
1756 | ||
718e3744 | 1757 | /* Redistribute with route-map specification. */ |
3dc339cd DA |
1758 | bool bgp_redistribute_rmap_set(struct bgp_redist *red, const char *name, |
1759 | struct route_map *route_map) | |
718e3744 | 1760 | { |
d62a17ae | 1761 | if (red->rmap.name && (strcmp(red->rmap.name, name) == 0)) |
3dc339cd | 1762 | return false; |
718e3744 | 1763 | |
0a22ddfb | 1764 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1765 | /* Decrement the count for existing routemap and |
1766 | * increment the count for new route map. | |
1767 | */ | |
1768 | route_map_counter_decrement(red->rmap.map); | |
d62a17ae | 1769 | red->rmap.name = XSTRDUP(MTYPE_ROUTE_MAP_NAME, name); |
1de27621 | 1770 | red->rmap.map = route_map; |
b4897fa5 | 1771 | route_map_counter_increment(red->rmap.map); |
718e3744 | 1772 | |
3dc339cd | 1773 | return true; |
718e3744 | 1774 | } |
1775 | ||
1776 | /* Redistribute with metric specification. */ | |
3dc339cd DA |
1777 | bool bgp_redistribute_metric_set(struct bgp *bgp, struct bgp_redist *red, |
1778 | afi_t afi, int type, uint32_t metric) | |
718e3744 | 1779 | { |
9bcb3eef | 1780 | struct bgp_dest *dest; |
40381db7 | 1781 | struct bgp_path_info *pi; |
d62a17ae | 1782 | |
1783 | if (red->redist_metric_flag && red->redist_metric == metric) | |
3dc339cd | 1784 | return false; |
d62a17ae | 1785 | |
1786 | red->redist_metric_flag = 1; | |
1787 | red->redist_metric = metric; | |
1788 | ||
9bcb3eef DS |
1789 | for (dest = bgp_table_top(bgp->rib[afi][SAFI_UNICAST]); dest; |
1790 | dest = bgp_route_next(dest)) { | |
1791 | for (pi = bgp_dest_get_bgp_path_info(dest); pi; pi = pi->next) { | |
40381db7 DS |
1792 | if (pi->sub_type == BGP_ROUTE_REDISTRIBUTE |
1793 | && pi->type == type | |
1794 | && pi->instance == red->instance) { | |
d62a17ae | 1795 | struct attr *old_attr; |
1796 | struct attr new_attr; | |
1797 | ||
6f4f49b2 | 1798 | new_attr = *pi->attr; |
d62a17ae | 1799 | new_attr.med = red->redist_metric; |
40381db7 DS |
1800 | old_attr = pi->attr; |
1801 | pi->attr = bgp_attr_intern(&new_attr); | |
d62a17ae | 1802 | bgp_attr_unintern(&old_attr); |
1803 | ||
9bcb3eef | 1804 | bgp_path_info_set_flag(dest, pi, |
18ee8310 | 1805 | BGP_PATH_ATTR_CHANGED); |
9bcb3eef | 1806 | bgp_process(bgp, dest, afi, SAFI_UNICAST); |
d62a17ae | 1807 | } |
1808 | } | |
1809 | } | |
1810 | ||
3dc339cd | 1811 | return true; |
718e3744 | 1812 | } |
1813 | ||
1814 | /* Unset redistribution. */ | |
d62a17ae | 1815 | int bgp_redistribute_unreg(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1816 | unsigned short instance) |
718e3744 | 1817 | { |
d62a17ae | 1818 | struct bgp_redist *red; |
1819 | ||
1820 | red = bgp_redist_lookup(bgp, afi, type, instance); | |
1821 | if (!red) | |
1822 | return CMD_SUCCESS; | |
1823 | ||
1824 | /* Return if zebra connection is disabled. */ | |
1825 | if (instance) { | |
1826 | if (!redist_check_instance(&zclient->mi_redist[afi][type], | |
1827 | instance)) | |
1828 | return CMD_WARNING; | |
1829 | redist_del_instance(&zclient->mi_redist[afi][type], instance); | |
1830 | } else { | |
1831 | if (!vrf_bitmap_check(zclient->redist[afi][type], bgp->vrf_id)) | |
1832 | return CMD_WARNING; | |
1833 | vrf_bitmap_unset(zclient->redist[afi][type], bgp->vrf_id); | |
1834 | } | |
718e3744 | 1835 | |
d62a17ae | 1836 | if (bgp_install_info_to_zebra(bgp)) { |
1837 | /* Send distribute delete message to zebra. */ | |
1838 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1839 | zlog_debug("Tx redistribute del VRF %u afi %d %s %d", | |
1840 | bgp->vrf_id, afi, zebra_route_string(type), | |
1841 | instance); | |
1842 | zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, | |
1843 | type, instance, bgp->vrf_id); | |
1844 | } | |
1845 | ||
1846 | /* Withdraw redistributed routes from current BGP's routing table. */ | |
1847 | bgp_redistribute_withdraw(bgp, afi, type, instance); | |
1848 | ||
1849 | return CMD_SUCCESS; | |
718e3744 | 1850 | } |
1851 | ||
6aeb9e78 | 1852 | /* Unset redistribution. */ |
d62a17ae | 1853 | int bgp_redistribute_unset(struct bgp *bgp, afi_t afi, int type, |
d7c0a89a | 1854 | unsigned short instance) |
6aeb9e78 | 1855 | { |
d62a17ae | 1856 | struct bgp_redist *red; |
6aeb9e78 | 1857 | |
ddb5b488 PZ |
1858 | /* |
1859 | * vnc and vpn->vrf checks must be before red check because | |
1860 | * they operate within bgpd irrespective of zebra connection | |
1861 | * status. red lookup fails if there is no zebra connection. | |
1862 | */ | |
49e5a4a0 | 1863 | #ifdef ENABLE_BGP_VNC |
f920dd6d | 1864 | if (EVPN_ENABLED(bgp) && type == ZEBRA_ROUTE_VNC_DIRECT) { |
ddb5b488 PZ |
1865 | vnc_export_bgp_disable(bgp, afi); |
1866 | } | |
1867 | #endif | |
ddb5b488 | 1868 | |
d62a17ae | 1869 | red = bgp_redist_lookup(bgp, afi, type, instance); |
1870 | if (!red) | |
1871 | return CMD_SUCCESS; | |
6aeb9e78 | 1872 | |
d62a17ae | 1873 | bgp_redistribute_unreg(bgp, afi, type, instance); |
6aeb9e78 | 1874 | |
d62a17ae | 1875 | /* Unset route-map. */ |
0a22ddfb | 1876 | XFREE(MTYPE_ROUTE_MAP_NAME, red->rmap.name); |
b4897fa5 | 1877 | route_map_counter_decrement(red->rmap.map); |
d62a17ae | 1878 | red->rmap.map = NULL; |
6aeb9e78 | 1879 | |
d62a17ae | 1880 | /* Unset metric. */ |
1881 | red->redist_metric_flag = 0; | |
1882 | red->redist_metric = 0; | |
6aeb9e78 | 1883 | |
d62a17ae | 1884 | bgp_redist_del(bgp, afi, type, instance); |
6aeb9e78 | 1885 | |
d62a17ae | 1886 | return CMD_SUCCESS; |
6aeb9e78 DS |
1887 | } |
1888 | ||
fc2408ec DS |
1889 | void bgp_redistribute_redo(struct bgp *bgp) |
1890 | { | |
1891 | afi_t afi; | |
1892 | int i; | |
1893 | struct list *red_list; | |
1894 | struct listnode *node; | |
1895 | struct bgp_redist *red; | |
1896 | ||
1897 | for (afi = AFI_IP; afi < AFI_MAX; afi++) { | |
1898 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) { | |
1899 | ||
1900 | red_list = bgp->redist[afi][i]; | |
1901 | if (!red_list) | |
1902 | continue; | |
1903 | ||
1904 | for (ALL_LIST_ELEMENTS_RO(red_list, node, red)) { | |
1905 | bgp_redistribute_resend(bgp, afi, i, | |
1906 | red->instance); | |
1907 | } | |
1908 | } | |
1909 | } | |
1910 | } | |
1911 | ||
401d56cc DS |
1912 | /* Unset redistribute vrf bitmap during triggers like |
1913 | restart networking or delete VRFs */ | |
1914 | void bgp_unset_redist_vrf_bitmaps(struct bgp *bgp, vrf_id_t old_vrf_id) | |
eb117f29 | 1915 | { |
d62a17ae | 1916 | int i; |
1917 | afi_t afi; | |
1918 | ||
1919 | for (afi = AFI_IP; afi < AFI_MAX; afi++) | |
1920 | for (i = 0; i < ZEBRA_ROUTE_MAX; i++) | |
7e20406f | 1921 | if (vrf_bitmap_check(zclient->redist[afi][i], |
401d56cc | 1922 | old_vrf_id)) |
d62a17ae | 1923 | vrf_bitmap_unset(zclient->redist[afi][i], |
1924 | old_vrf_id); | |
d62a17ae | 1925 | return; |
eb117f29 SK |
1926 | } |
1927 | ||
d62a17ae | 1928 | void bgp_zclient_reset(void) |
718e3744 | 1929 | { |
d62a17ae | 1930 | zclient_reset(zclient); |
718e3744 | 1931 | } |
1932 | ||
ad4cbda1 | 1933 | /* Register this instance with Zebra. Invoked upon connect (for |
1934 | * default instance) and when other VRFs are learnt (or created and | |
1935 | * already learnt). | |
1936 | */ | |
d62a17ae | 1937 | void bgp_zebra_instance_register(struct bgp *bgp) |
ad4cbda1 | 1938 | { |
d62a17ae | 1939 | /* Don't try to register if we're not connected to Zebra */ |
1940 | if (!zclient || zclient->sock < 0) | |
1941 | return; | |
ad4cbda1 | 1942 | |
d62a17ae | 1943 | if (BGP_DEBUG(zebra, ZEBRA)) |
1944 | zlog_debug("Registering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1945 | |
d62a17ae | 1946 | /* Register for router-id, interfaces, redistributed routes. */ |
1947 | zclient_send_reg_requests(zclient, bgp->vrf_id); | |
7724c0a1 | 1948 | |
e2f3a930 T |
1949 | /* For EVPN instance, register to learn about VNIs, if appropriate. */ |
1950 | if (bgp->advertise_all_vni) | |
d62a17ae | 1951 | bgp_zebra_advertise_all_vni(bgp, 1); |
1ee0a2df DS |
1952 | |
1953 | bgp_nht_register_nexthops(bgp); | |
ad4cbda1 | 1954 | } |
1955 | ||
1956 | /* Deregister this instance with Zebra. Invoked upon the instance | |
1957 | * being deleted (default or VRF) and it is already registered. | |
1958 | */ | |
d62a17ae | 1959 | void bgp_zebra_instance_deregister(struct bgp *bgp) |
ad4cbda1 | 1960 | { |
d62a17ae | 1961 | /* Don't try to deregister if we're not connected to Zebra */ |
1962 | if (zclient->sock < 0) | |
1963 | return; | |
ad4cbda1 | 1964 | |
d62a17ae | 1965 | if (BGP_DEBUG(zebra, ZEBRA)) |
1966 | zlog_debug("Deregistering VRF %u", bgp->vrf_id); | |
ad4cbda1 | 1967 | |
e2f3a930 T |
1968 | /* For EVPN instance, unregister learning about VNIs, if appropriate. */ |
1969 | if (bgp->advertise_all_vni) | |
d62a17ae | 1970 | bgp_zebra_advertise_all_vni(bgp, 0); |
7724c0a1 | 1971 | |
d62a17ae | 1972 | /* Deregister for router-id, interfaces, redistributed routes. */ |
1973 | zclient_send_dereg_requests(zclient, bgp->vrf_id); | |
ad4cbda1 | 1974 | } |
1975 | ||
d62a17ae | 1976 | void bgp_zebra_initiate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1977 | { |
bbad0276 | 1978 | uint32_t ra_interval = BGP_UNNUM_DEFAULT_RA_INTERVAL; |
5c81b96a | 1979 | |
d62a17ae | 1980 | /* Don't try to initiate if we're not connected to Zebra */ |
1981 | if (zclient->sock < 0) | |
1982 | return; | |
4a04e5f7 | 1983 | |
d62a17ae | 1984 | if (BGP_DEBUG(zebra, ZEBRA)) |
1985 | zlog_debug("%u: Initiating RA for peer %s", bgp->vrf_id, | |
1986 | peer->host); | |
4a04e5f7 | 1987 | |
b3a3290e DS |
1988 | /* |
1989 | * If unnumbered peer (peer->ifp) call thru zapi to start RAs. | |
1990 | * If we don't have an ifp pointer, call function to find the | |
1991 | * ifps for a numbered enhe peer to turn RAs on. | |
1992 | */ | |
1993 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
1994 | peer->ifp, 1, ra_interval) | |
1995 | : bgp_nht_reg_enhe_cap_intfs(peer); | |
4a04e5f7 | 1996 | } |
1997 | ||
d62a17ae | 1998 | void bgp_zebra_terminate_radv(struct bgp *bgp, struct peer *peer) |
4a04e5f7 | 1999 | { |
d62a17ae | 2000 | /* Don't try to terminate if we're not connected to Zebra */ |
2001 | if (zclient->sock < 0) | |
2002 | return; | |
4a04e5f7 | 2003 | |
d62a17ae | 2004 | if (BGP_DEBUG(zebra, ZEBRA)) |
2005 | zlog_debug("%u: Terminating RA for peer %s", bgp->vrf_id, | |
2006 | peer->host); | |
4a04e5f7 | 2007 | |
b3a3290e DS |
2008 | /* |
2009 | * If unnumbered peer (peer->ifp) call thru zapi to stop RAs. | |
2010 | * If we don't have an ifp pointer, call function to find the | |
2011 | * ifps for a numbered enhe peer to turn RAs off. | |
2012 | */ | |
2013 | peer->ifp ? zclient_send_interface_radv_req(zclient, bgp->vrf_id, | |
2014 | peer->ifp, 0, 0) | |
2015 | : bgp_nht_dereg_enhe_cap_intfs(peer); | |
4a04e5f7 | 2016 | } |
2017 | ||
31310b25 MK |
2018 | int bgp_zebra_advertise_subnet(struct bgp *bgp, int advertise, vni_t vni) |
2019 | { | |
2020 | struct stream *s = NULL; | |
2021 | ||
2022 | /* Check socket. */ | |
2023 | if (!zclient || zclient->sock < 0) | |
2024 | return 0; | |
2025 | ||
2026 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2027 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2028 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2029 | zlog_debug( |
2030 | "%s: No zebra instance to talk to, cannot advertise subnet", | |
2031 | __func__); | |
31310b25 | 2032 | return 0; |
bb4ef1ae | 2033 | } |
31310b25 MK |
2034 | |
2035 | s = zclient->obuf; | |
2036 | stream_reset(s); | |
2037 | ||
2038 | zclient_create_header(s, ZEBRA_ADVERTISE_SUBNET, bgp->vrf_id); | |
2039 | stream_putc(s, advertise); | |
2040 | stream_put3(s, vni); | |
2041 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2042 | ||
2043 | return zclient_send_message(zclient); | |
2044 | } | |
2045 | ||
a8016157 CS |
2046 | int bgp_zebra_advertise_svi_macip(struct bgp *bgp, int advertise, vni_t vni) |
2047 | { | |
2048 | struct stream *s = NULL; | |
2049 | ||
2050 | /* Check socket. */ | |
2051 | if (!zclient || zclient->sock < 0) | |
2052 | return 0; | |
2053 | ||
2054 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2055 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2056 | return 0; | |
2057 | ||
2058 | s = zclient->obuf; | |
2059 | stream_reset(s); | |
2060 | ||
2061 | zclient_create_header(s, ZEBRA_ADVERTISE_SVI_MACIP, bgp->vrf_id); | |
2062 | stream_putc(s, advertise); | |
2063 | stream_putl(s, vni); | |
2064 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2065 | ||
2066 | return zclient_send_message(zclient); | |
2067 | } | |
2068 | ||
1a98c087 MK |
2069 | int bgp_zebra_advertise_gw_macip(struct bgp *bgp, int advertise, vni_t vni) |
2070 | { | |
2071 | struct stream *s = NULL; | |
2072 | ||
2073 | /* Check socket. */ | |
2074 | if (!zclient || zclient->sock < 0) | |
2075 | return 0; | |
2076 | ||
2077 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2078 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2079 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2080 | zlog_debug( |
2081 | "%s: No zebra instance to talk to, not installing gw_macip", | |
2082 | __func__); | |
1a98c087 | 2083 | return 0; |
bb4ef1ae | 2084 | } |
1a98c087 MK |
2085 | |
2086 | s = zclient->obuf; | |
2087 | stream_reset(s); | |
2088 | ||
2089 | zclient_create_header(s, ZEBRA_ADVERTISE_DEFAULT_GW, bgp->vrf_id); | |
2090 | stream_putc(s, advertise); | |
cc6d5476 | 2091 | stream_putl(s, vni); |
1a98c087 MK |
2092 | stream_putw_at(s, 0, stream_get_endp(s)); |
2093 | ||
2094 | return zclient_send_message(zclient); | |
2095 | } | |
2096 | ||
fd069644 DS |
2097 | int bgp_zebra_vxlan_flood_control(struct bgp *bgp, |
2098 | enum vxlan_flood_control flood_ctrl) | |
2099 | { | |
2100 | struct stream *s; | |
2101 | ||
2102 | /* Check socket. */ | |
2103 | if (!zclient || zclient->sock < 0) | |
2104 | return 0; | |
2105 | ||
2106 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
bb4ef1ae DS |
2107 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) { |
2108 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2109 | zlog_debug( |
2110 | "%s: No zebra instance to talk to, not installing all vni", | |
2111 | __func__); | |
fd069644 | 2112 | return 0; |
bb4ef1ae | 2113 | } |
fd069644 DS |
2114 | |
2115 | s = zclient->obuf; | |
2116 | stream_reset(s); | |
2117 | ||
2118 | zclient_create_header(s, ZEBRA_VXLAN_FLOOD_CONTROL, bgp->vrf_id); | |
2119 | stream_putc(s, flood_ctrl); | |
2120 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2121 | ||
2122 | return zclient_send_message(zclient); | |
2123 | } | |
2124 | ||
d62a17ae | 2125 | int bgp_zebra_advertise_all_vni(struct bgp *bgp, int advertise) |
7724c0a1 | 2126 | { |
d62a17ae | 2127 | struct stream *s; |
7724c0a1 | 2128 | |
d62a17ae | 2129 | /* Check socket. */ |
2130 | if (!zclient || zclient->sock < 0) | |
2131 | return 0; | |
7724c0a1 | 2132 | |
d62a17ae | 2133 | /* Don't try to register if Zebra doesn't know of this instance. */ |
2134 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2135 | return 0; | |
7724c0a1 | 2136 | |
d62a17ae | 2137 | s = zclient->obuf; |
2138 | stream_reset(s); | |
7724c0a1 | 2139 | |
d62a17ae | 2140 | zclient_create_header(s, ZEBRA_ADVERTISE_ALL_VNI, bgp->vrf_id); |
2141 | stream_putc(s, advertise); | |
fbac9605 DS |
2142 | /* Also inform current BUM handling setting. This is really |
2143 | * relevant only when 'advertise' is set. | |
2144 | */ | |
fd069644 | 2145 | stream_putc(s, bgp->vxlan_flood_ctrl); |
d62a17ae | 2146 | stream_putw_at(s, 0, stream_get_endp(s)); |
7724c0a1 | 2147 | |
d62a17ae | 2148 | return zclient_send_message(zclient); |
7724c0a1 | 2149 | } |
2150 | ||
0b9d9cd0 CS |
2151 | int bgp_zebra_dup_addr_detection(struct bgp *bgp) |
2152 | { | |
2153 | struct stream *s; | |
2154 | ||
2155 | /* Check socket. */ | |
2156 | if (!zclient || zclient->sock < 0) | |
2157 | return 0; | |
2158 | ||
2159 | /* Don't try to register if Zebra doesn't know of this instance. */ | |
2160 | if (!IS_BGP_INST_KNOWN_TO_ZEBRA(bgp)) | |
2161 | return 0; | |
2162 | ||
2163 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2164 | zlog_debug("dup addr detect %s max_moves %u time %u freeze %s freeze_time %u", | |
2165 | bgp->evpn_info->dup_addr_detect ? | |
2166 | "enable" : "disable", | |
2167 | bgp->evpn_info->dad_max_moves, | |
2168 | bgp->evpn_info->dad_time, | |
2169 | bgp->evpn_info->dad_freeze ? | |
2170 | "enable" : "disable", | |
2171 | bgp->evpn_info->dad_freeze_time); | |
2172 | ||
2173 | s = zclient->obuf; | |
2174 | stream_reset(s); | |
2175 | zclient_create_header(s, ZEBRA_DUPLICATE_ADDR_DETECTION, | |
2176 | bgp->vrf_id); | |
2177 | stream_putl(s, bgp->evpn_info->dup_addr_detect); | |
2178 | stream_putl(s, bgp->evpn_info->dad_time); | |
2179 | stream_putl(s, bgp->evpn_info->dad_max_moves); | |
2180 | stream_putl(s, bgp->evpn_info->dad_freeze); | |
2181 | stream_putl(s, bgp->evpn_info->dad_freeze_time); | |
2182 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2183 | ||
2184 | return zclient_send_message(zclient); | |
2185 | } | |
2186 | ||
121f9dee | 2187 | static int rule_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2188 | { |
2189 | uint32_t seqno, priority, unique; | |
2190 | enum zapi_rule_notify_owner note; | |
2191 | struct bgp_pbr_action *bgp_pbra; | |
ffee150e | 2192 | struct bgp_pbr_rule *bgp_pbr = NULL; |
58a1d249 | 2193 | char ifname[INTERFACE_NAMSIZ + 1]; |
30d50e6d PG |
2194 | |
2195 | if (!zapi_rule_notify_decode(zclient->ibuf, &seqno, &priority, &unique, | |
58a1d249 | 2196 | ifname, ¬e)) |
30d50e6d PG |
2197 | return -1; |
2198 | ||
70eabd12 | 2199 | bgp_pbra = bgp_pbr_action_rule_lookup(vrf_id, unique); |
30d50e6d | 2200 | if (!bgp_pbra) { |
ffee150e PG |
2201 | /* look in bgp pbr rule */ |
2202 | bgp_pbr = bgp_pbr_rule_lookup(vrf_id, unique); | |
2203 | if (!bgp_pbr && note != ZAPI_RULE_REMOVED) { | |
2204 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2205 | zlog_debug("%s: Fail to look BGP rule (%u)", | |
15569c58 | 2206 | __func__, unique); |
ffee150e PG |
2207 | return 0; |
2208 | } | |
30d50e6d PG |
2209 | } |
2210 | ||
2211 | switch (note) { | |
2212 | case ZAPI_RULE_FAIL_INSTALL: | |
2213 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2214 | zlog_debug("%s: Received RULE_FAIL_INSTALL", __func__); |
ffee150e PG |
2215 | if (bgp_pbra) { |
2216 | bgp_pbra->installed = false; | |
2217 | bgp_pbra->install_in_progress = false; | |
2218 | } else { | |
2219 | bgp_pbr->installed = false; | |
2220 | bgp_pbr->install_in_progress = false; | |
2221 | } | |
30d50e6d PG |
2222 | break; |
2223 | case ZAPI_RULE_INSTALLED: | |
ffee150e PG |
2224 | if (bgp_pbra) { |
2225 | bgp_pbra->installed = true; | |
2226 | bgp_pbra->install_in_progress = false; | |
2227 | } else { | |
ce3c0614 PG |
2228 | struct bgp_path_info *path; |
2229 | struct bgp_path_info_extra *extra; | |
2230 | ||
ffee150e PG |
2231 | bgp_pbr->installed = true; |
2232 | bgp_pbr->install_in_progress = false; | |
2233 | bgp_pbr->action->refcnt++; | |
ce3c0614 PG |
2234 | /* link bgp_info to bgp_pbr */ |
2235 | path = (struct bgp_path_info *)bgp_pbr->path; | |
2236 | extra = bgp_path_info_extra_get(path); | |
f5925234 PG |
2237 | listnode_add_force(&extra->bgp_fs_iprule, |
2238 | bgp_pbr); | |
ffee150e | 2239 | } |
30d50e6d | 2240 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 | 2241 | zlog_debug("%s: Received RULE_INSTALLED", __func__); |
30d50e6d | 2242 | break; |
f18a08f5 | 2243 | case ZAPI_RULE_FAIL_REMOVE: |
30d50e6d PG |
2244 | case ZAPI_RULE_REMOVED: |
2245 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2246 | zlog_debug("%s: Received RULE REMOVED", __func__); |
30d50e6d PG |
2247 | break; |
2248 | } | |
2249 | ||
2250 | return 0; | |
2251 | } | |
2252 | ||
121f9dee | 2253 | static int ipset_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2254 | { |
2255 | uint32_t unique; | |
2256 | enum zapi_ipset_notify_owner note; | |
2257 | struct bgp_pbr_match *bgp_pbim; | |
2258 | ||
2259 | if (!zapi_ipset_notify_decode(zclient->ibuf, | |
2260 | &unique, | |
2261 | ¬e)) | |
2262 | return -1; | |
2263 | ||
2264 | bgp_pbim = bgp_pbr_match_ipset_lookup(vrf_id, unique); | |
2265 | if (!bgp_pbim) { | |
2266 | if (BGP_DEBUG(zebra, ZEBRA)) | |
88055124 | 2267 | zlog_debug("%s: Fail to look BGP match ( %u, ID %u)", |
15569c58 | 2268 | __func__, note, unique); |
30d50e6d PG |
2269 | return 0; |
2270 | } | |
2271 | ||
2272 | switch (note) { | |
2273 | case ZAPI_IPSET_FAIL_INSTALL: | |
2274 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2275 | zlog_debug("%s: Received IPSET_FAIL_INSTALL", __func__); |
30d50e6d PG |
2276 | bgp_pbim->installed = false; |
2277 | bgp_pbim->install_in_progress = false; | |
2278 | break; | |
2279 | case ZAPI_IPSET_INSTALLED: | |
2280 | bgp_pbim->installed = true; | |
2281 | bgp_pbim->install_in_progress = false; | |
2282 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2283 | zlog_debug("%s: Received IPSET_INSTALLED", __func__); |
30d50e6d | 2284 | break; |
f18a08f5 | 2285 | case ZAPI_IPSET_FAIL_REMOVE: |
30d50e6d PG |
2286 | case ZAPI_IPSET_REMOVED: |
2287 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2288 | zlog_debug("%s: Received IPSET REMOVED", __func__); |
30d50e6d PG |
2289 | break; |
2290 | } | |
2291 | ||
2292 | return 0; | |
2293 | } | |
2294 | ||
121f9dee | 2295 | static int ipset_entry_notify_owner(ZAPI_CALLBACK_ARGS) |
30d50e6d PG |
2296 | { |
2297 | uint32_t unique; | |
2298 | char ipset_name[ZEBRA_IPSET_NAME_SIZE]; | |
2299 | enum zapi_ipset_entry_notify_owner note; | |
2300 | struct bgp_pbr_match_entry *bgp_pbime; | |
2301 | ||
2302 | if (!zapi_ipset_entry_notify_decode( | |
2303 | zclient->ibuf, | |
2304 | &unique, | |
2305 | ipset_name, | |
2306 | ¬e)) | |
2307 | return -1; | |
2308 | bgp_pbime = bgp_pbr_match_ipset_entry_lookup(vrf_id, | |
2309 | ipset_name, | |
2310 | unique); | |
2311 | if (!bgp_pbime) { | |
2312 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 DA |
2313 | zlog_debug( |
2314 | "%s: Fail to look BGP match entry (%u, ID %u)", | |
2315 | __func__, note, unique); | |
30d50e6d PG |
2316 | return 0; |
2317 | } | |
2318 | ||
2319 | switch (note) { | |
2320 | case ZAPI_IPSET_ENTRY_FAIL_INSTALL: | |
2321 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2322 | zlog_debug("%s: Received IPSET_ENTRY_FAIL_INSTALL", | |
15569c58 | 2323 | __func__); |
30d50e6d PG |
2324 | bgp_pbime->installed = false; |
2325 | bgp_pbime->install_in_progress = false; | |
2326 | break; | |
2327 | case ZAPI_IPSET_ENTRY_INSTALLED: | |
b588b642 | 2328 | { |
9b6d8fcf | 2329 | struct bgp_path_info *path; |
4b7e6066 DS |
2330 | struct bgp_path_info_extra *extra; |
2331 | ||
2332 | bgp_pbime->installed = true; | |
2333 | bgp_pbime->install_in_progress = false; | |
2334 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2335 | zlog_debug("%s: Received IPSET_ENTRY_INSTALLED", | |
15569c58 | 2336 | __func__); |
9b6d8fcf DS |
2337 | /* link bgp_path_info to bpme */ |
2338 | path = (struct bgp_path_info *)bgp_pbime->path; | |
2339 | extra = bgp_path_info_extra_get(path); | |
f5925234 | 2340 | listnode_add_force(&extra->bgp_fs_pbr, bgp_pbime); |
b588b642 | 2341 | } |
30d50e6d | 2342 | break; |
f18a08f5 | 2343 | case ZAPI_IPSET_ENTRY_FAIL_REMOVE: |
30d50e6d PG |
2344 | case ZAPI_IPSET_ENTRY_REMOVED: |
2345 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2346 | zlog_debug("%s: Received IPSET_ENTRY_REMOVED", | |
15569c58 | 2347 | __func__); |
30d50e6d PG |
2348 | break; |
2349 | } | |
2350 | return 0; | |
2351 | } | |
2352 | ||
121f9dee | 2353 | static int iptable_notify_owner(ZAPI_CALLBACK_ARGS) |
c16a0a62 PG |
2354 | { |
2355 | uint32_t unique; | |
2356 | enum zapi_iptable_notify_owner note; | |
2357 | struct bgp_pbr_match *bgpm; | |
2358 | ||
2359 | if (!zapi_iptable_notify_decode( | |
2360 | zclient->ibuf, | |
2361 | &unique, | |
2362 | ¬e)) | |
2363 | return -1; | |
2364 | bgpm = bgp_pbr_match_iptable_lookup(vrf_id, unique); | |
2365 | if (!bgpm) { | |
2366 | if (BGP_DEBUG(zebra, ZEBRA)) | |
82e194ed | 2367 | zlog_debug("%s: Fail to look BGP iptable (%u %u)", |
15569c58 | 2368 | __func__, note, unique); |
c16a0a62 PG |
2369 | return 0; |
2370 | } | |
2371 | switch (note) { | |
2372 | case ZAPI_IPTABLE_FAIL_INSTALL: | |
2373 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2374 | zlog_debug("%s: Received IPTABLE_FAIL_INSTALL", | |
15569c58 | 2375 | __func__); |
c16a0a62 PG |
2376 | bgpm->installed_in_iptable = false; |
2377 | bgpm->install_iptable_in_progress = false; | |
2378 | break; | |
2379 | case ZAPI_IPTABLE_INSTALLED: | |
2380 | bgpm->installed_in_iptable = true; | |
2381 | bgpm->install_iptable_in_progress = false; | |
2382 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2383 | zlog_debug("%s: Received IPTABLE_INSTALLED", __func__); |
a6b07429 | 2384 | bgpm->action->refcnt++; |
c16a0a62 | 2385 | break; |
f18a08f5 | 2386 | case ZAPI_IPTABLE_FAIL_REMOVE: |
c16a0a62 PG |
2387 | case ZAPI_IPTABLE_REMOVED: |
2388 | if (BGP_DEBUG(zebra, ZEBRA)) | |
15569c58 | 2389 | zlog_debug("%s: Received IPTABLE REMOVED", __func__); |
c16a0a62 PG |
2390 | break; |
2391 | } | |
2392 | return 0; | |
2393 | } | |
2394 | ||
a77e2f4b S |
2395 | /* Process route notification messages from RIB */ |
2396 | static int bgp_zebra_route_notify_owner(int command, struct zclient *zclient, | |
2397 | zebra_size_t length, vrf_id_t vrf_id) | |
2398 | { | |
2399 | struct prefix p; | |
2400 | enum zapi_route_notify_owner note; | |
2401 | uint32_t table_id; | |
a77e2f4b S |
2402 | afi_t afi; |
2403 | safi_t safi; | |
2404 | struct bgp_dest *dest; | |
2405 | struct bgp *bgp; | |
2406 | struct bgp_path_info *pi, *new_select; | |
2407 | ||
2408 | if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, ¬e, | |
2409 | &afi, &safi)) { | |
2410 | zlog_err("%s : error in msg decode", __PRETTY_FUNCTION__); | |
2411 | return -1; | |
2412 | } | |
2413 | ||
2414 | /* Get the bgp instance */ | |
2415 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2416 | if (!bgp) { | |
2417 | flog_err(EC_BGP_INVALID_BGP_INSTANCE, | |
2418 | "%s : bgp instance not found vrf %d", | |
2419 | __PRETTY_FUNCTION__, vrf_id); | |
2420 | return -1; | |
2421 | } | |
2422 | ||
a77e2f4b S |
2423 | /* Find the bgp route node */ |
2424 | dest = bgp_afi_node_lookup(bgp->rib[afi][safi], afi, safi, &p, | |
2425 | &bgp->vrf_prd); | |
2426 | if (!dest) | |
2427 | return -1; | |
2428 | ||
2429 | bgp_dest_unlock_node(dest); | |
2430 | ||
2431 | switch (note) { | |
2432 | case ZAPI_ROUTE_INSTALLED: | |
2433 | new_select = NULL; | |
2434 | /* Clear the flags so that route can be processed */ | |
2435 | if (CHECK_FLAG(dest->flags, | |
2436 | BGP_NODE_FIB_INSTALL_PENDING)) { | |
2437 | UNSET_FLAG(dest->flags, | |
2438 | BGP_NODE_FIB_INSTALL_PENDING); | |
2439 | SET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
2440 | if (BGP_DEBUG(zebra, ZEBRA)) | |
1a3519b6 | 2441 | zlog_debug("route %pRN : INSTALLED", dest); |
a77e2f4b S |
2442 | /* Find the best route */ |
2443 | for (pi = dest->info; pi; pi = pi->next) { | |
2444 | /* Process aggregate route */ | |
2445 | bgp_aggregate_increment(bgp, &p, pi, | |
2446 | afi, safi); | |
2447 | if (CHECK_FLAG(pi->flags, | |
2448 | BGP_PATH_SELECTED)) | |
2449 | new_select = pi; | |
2450 | } | |
2451 | /* Advertise the route */ | |
2452 | if (new_select) | |
2453 | group_announce_route(bgp, afi, safi, | |
2454 | dest, new_select); | |
2455 | else { | |
2456 | flog_err(EC_BGP_INVALID_ROUTE, | |
1a3519b6 DS |
2457 | "selected route %pRN not found", |
2458 | dest); | |
a77e2f4b S |
2459 | return -1; |
2460 | } | |
2461 | } | |
2462 | break; | |
2463 | case ZAPI_ROUTE_REMOVED: | |
2464 | /* Route deleted from dataplane, reset the installed flag | |
2465 | * so that route can be reinstalled when client sends | |
2466 | * route add later | |
2467 | */ | |
2468 | UNSET_FLAG(dest->flags, BGP_NODE_FIB_INSTALLED); | |
1a3519b6 DS |
2469 | if (BGP_DEBUG(zebra, ZEBRA)) |
2470 | zlog_debug("route %pRN: Removed from Fib", dest); | |
a77e2f4b S |
2471 | break; |
2472 | case ZAPI_ROUTE_FAIL_INSTALL: | |
1a3519b6 DS |
2473 | if (BGP_DEBUG(zebra, ZEBRA)) |
2474 | zlog_debug("route: %pRN Failed to Install into Fib", | |
2475 | dest); | |
a77e2f4b S |
2476 | /* Error will be logged by zebra module */ |
2477 | break; | |
2478 | case ZAPI_ROUTE_BETTER_ADMIN_WON: | |
1a3519b6 DS |
2479 | if (BGP_DEBUG(zebra, ZEBRA)) |
2480 | zlog_debug("route: %pRN removed due to better admin won", | |
2481 | dest); | |
a77e2f4b S |
2482 | /* No action required */ |
2483 | break; | |
2484 | case ZAPI_ROUTE_REMOVE_FAIL: | |
1a3519b6 DS |
2485 | zlog_warn("%s: Route %pRN failure to remove", |
2486 | __func__, dest); | |
a77e2f4b S |
2487 | break; |
2488 | } | |
2489 | return 0; | |
2490 | } | |
2491 | ||
6cfe5d15 PG |
2492 | /* this function is used to forge ip rule, |
2493 | * - either for iptable/ipset using fwmark id | |
121f9dee | 2494 | * - or for sample ip rule cmd |
6cfe5d15 | 2495 | */ |
30d50e6d | 2496 | static void bgp_encode_pbr_rule_action(struct stream *s, |
6cfe5d15 PG |
2497 | struct bgp_pbr_action *pbra, |
2498 | struct bgp_pbr_rule *pbr) | |
30d50e6d | 2499 | { |
6cfe5d15 | 2500 | struct prefix pfx; |
f01e580f | 2501 | uint8_t fam = AF_INET; |
e95666cb | 2502 | char ifname[INTERFACE_NAMSIZ]; |
30d50e6d | 2503 | |
9f1f03ec | 2504 | if (pbra->nh.type == NEXTHOP_TYPE_IPV6) |
f01e580f | 2505 | fam = AF_INET6; |
30d50e6d | 2506 | stream_putl(s, 0); /* seqno unused */ |
8112a7a0 PG |
2507 | if (pbr) |
2508 | stream_putl(s, pbr->priority); | |
2509 | else | |
2510 | stream_putl(s, 0); | |
2511 | /* ruleno unused - priority change | |
2512 | * ruleno permits distinguishing various FS PBR entries | |
2513 | * - FS PBR entries based on ipset/iptables | |
2514 | * - FS PBR entries based on iprule | |
2515 | * the latter may contain default routing information injected by FS | |
2516 | */ | |
6cfe5d15 PG |
2517 | if (pbr) |
2518 | stream_putl(s, pbr->unique); | |
2519 | else | |
2520 | stream_putl(s, pbra->unique); | |
2521 | if (pbr && pbr->flags & MATCH_IP_SRC_SET) | |
2522 | memcpy(&pfx, &(pbr->src), sizeof(struct prefix)); | |
2523 | else { | |
2524 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2525 | pfx.family = fam; |
6cfe5d15 PG |
2526 | } |
2527 | stream_putc(s, pfx.family); | |
2528 | stream_putc(s, pfx.prefixlen); | |
2529 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2530 | |
2531 | stream_putw(s, 0); /* src port */ | |
2532 | ||
6cfe5d15 PG |
2533 | if (pbr && pbr->flags & MATCH_IP_DST_SET) |
2534 | memcpy(&pfx, &(pbr->dst), sizeof(struct prefix)); | |
2535 | else { | |
2536 | memset(&pfx, 0, sizeof(pfx)); | |
f01e580f | 2537 | pfx.family = fam; |
6cfe5d15 PG |
2538 | } |
2539 | stream_putc(s, pfx.family); | |
2540 | stream_putc(s, pfx.prefixlen); | |
2541 | stream_put(s, &pfx.u.prefix, prefix_blen(&pfx)); | |
30d50e6d PG |
2542 | |
2543 | stream_putw(s, 0); /* dst port */ | |
e95666cb | 2544 | stream_putc(s, 0); /* dsfield */ |
6cfe5d15 PG |
2545 | /* if pbr present, fwmark is not used */ |
2546 | if (pbr) | |
2547 | stream_putl(s, 0); | |
2548 | else | |
2549 | stream_putl(s, pbra->fwmark); /* fwmark */ | |
30d50e6d PG |
2550 | |
2551 | stream_putl(s, pbra->table_id); | |
2552 | ||
e95666cb DS |
2553 | memset(ifname, 0, sizeof(ifname)); |
2554 | stream_put(s, ifname, INTERFACE_NAMSIZ); /* ifname unused */ | |
30d50e6d PG |
2555 | } |
2556 | ||
2557 | static void bgp_encode_pbr_ipset_match(struct stream *s, | |
2558 | struct bgp_pbr_match *pbim) | |
2559 | { | |
2560 | stream_putl(s, pbim->unique); | |
2561 | stream_putl(s, pbim->type); | |
a60b7031 | 2562 | stream_putc(s, pbim->family); |
30d50e6d PG |
2563 | stream_put(s, pbim->ipset_name, |
2564 | ZEBRA_IPSET_NAME_SIZE); | |
30d50e6d PG |
2565 | } |
2566 | ||
2567 | static void bgp_encode_pbr_ipset_entry_match(struct stream *s, | |
2568 | struct bgp_pbr_match_entry *pbime) | |
2569 | { | |
2570 | stream_putl(s, pbime->unique); | |
2571 | /* check that back pointer is not null */ | |
2572 | stream_put(s, pbime->backpointer->ipset_name, | |
2573 | ZEBRA_IPSET_NAME_SIZE); | |
2574 | ||
2575 | stream_putc(s, pbime->src.family); | |
2576 | stream_putc(s, pbime->src.prefixlen); | |
2577 | stream_put(s, &pbime->src.u.prefix, prefix_blen(&pbime->src)); | |
2578 | ||
2579 | stream_putc(s, pbime->dst.family); | |
2580 | stream_putc(s, pbime->dst.prefixlen); | |
2581 | stream_put(s, &pbime->dst.u.prefix, prefix_blen(&pbime->dst)); | |
f730e566 PG |
2582 | |
2583 | stream_putw(s, pbime->src_port_min); | |
2584 | stream_putw(s, pbime->src_port_max); | |
2585 | stream_putw(s, pbime->dst_port_min); | |
2586 | stream_putw(s, pbime->dst_port_max); | |
2587 | stream_putc(s, pbime->proto); | |
30d50e6d PG |
2588 | } |
2589 | ||
c16a0a62 PG |
2590 | static void bgp_encode_pbr_iptable_match(struct stream *s, |
2591 | struct bgp_pbr_action *bpa, | |
2592 | struct bgp_pbr_match *pbm) | |
2593 | { | |
2594 | stream_putl(s, pbm->unique2); | |
2595 | ||
2596 | stream_putl(s, pbm->type); | |
2597 | ||
2598 | stream_putl(s, pbm->flags); | |
2599 | ||
2600 | /* TODO: correlate with what is contained | |
2601 | * into bgp_pbr_action. | |
2602 | * currently only forward supported | |
2603 | */ | |
2604 | if (bpa->nh.type == NEXTHOP_TYPE_BLACKHOLE) | |
2605 | stream_putl(s, ZEBRA_IPTABLES_DROP); | |
2606 | else | |
2607 | stream_putl(s, ZEBRA_IPTABLES_FORWARD); | |
2608 | stream_putl(s, bpa->fwmark); | |
2609 | stream_put(s, pbm->ipset_name, | |
2610 | ZEBRA_IPSET_NAME_SIZE); | |
a60b7031 | 2611 | stream_putc(s, pbm->family); |
83360720 PG |
2612 | stream_putw(s, pbm->pkt_len_min); |
2613 | stream_putw(s, pbm->pkt_len_max); | |
2da7d62e PG |
2614 | stream_putw(s, pbm->tcp_flags); |
2615 | stream_putw(s, pbm->tcp_mask_flags); | |
4977bd6c | 2616 | stream_putc(s, pbm->dscp_value); |
6f5617d8 | 2617 | stream_putc(s, pbm->fragment); |
f449d223 | 2618 | stream_putc(s, pbm->protocol); |
a60b7031 | 2619 | stream_putw(s, pbm->flow_label); |
c16a0a62 PG |
2620 | } |
2621 | ||
ad4cbda1 | 2622 | /* BGP has established connection with Zebra. */ |
d62a17ae | 2623 | static void bgp_zebra_connected(struct zclient *zclient) |
7076bb2f | 2624 | { |
d62a17ae | 2625 | struct bgp *bgp; |
7076bb2f | 2626 | |
d62a17ae | 2627 | zclient_num_connects++; /* increment even if not responding */ |
afbb1c59 | 2628 | |
d62a17ae | 2629 | /* At this point, we may or may not have BGP instances configured, but |
2630 | * we're only interested in the default VRF (others wouldn't have learnt | |
2631 | * the VRF from Zebra yet.) | |
2632 | */ | |
2633 | bgp = bgp_get_default(); | |
2634 | if (!bgp) | |
2635 | return; | |
ad4cbda1 | 2636 | |
d62a17ae | 2637 | bgp_zebra_instance_register(bgp); |
ad4cbda1 | 2638 | |
d62a17ae | 2639 | /* Send the client registration */ |
0945d5ed | 2640 | bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, bgp->vrf_id); |
2376c3f2 | 2641 | |
955bfd98 | 2642 | /* tell label pool that zebra is connected */ |
e70e9f8e | 2643 | bgp_lp_event_zebra_up(); |
955bfd98 | 2644 | |
d62a17ae | 2645 | /* TODO - What if we have peers and networks configured, do we have to |
2646 | * kick-start them? | |
2647 | */ | |
85ef4179 | 2648 | BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(bgp, bgp->peer); |
7076bb2f FL |
2649 | } |
2650 | ||
c44ab6f1 AK |
2651 | static int bgp_zebra_process_local_es_add(ZAPI_CALLBACK_ARGS) |
2652 | { | |
2653 | esi_t esi; | |
2654 | struct bgp *bgp = NULL; | |
2655 | struct stream *s = NULL; | |
2656 | char buf[ESI_STR_LEN]; | |
2657 | struct in_addr originator_ip; | |
2658 | uint8_t active; | |
74be8313 | 2659 | uint8_t bypass; |
74e2bd89 | 2660 | uint16_t df_pref; |
c44ab6f1 AK |
2661 | |
2662 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2663 | if (!bgp) | |
2664 | return 0; | |
2665 | ||
2666 | s = zclient->ibuf; | |
2667 | stream_get(&esi, s, sizeof(esi_t)); | |
2668 | originator_ip.s_addr = stream_get_ipv4(s); | |
2669 | active = stream_getc(s); | |
74e2bd89 | 2670 | df_pref = stream_getw(s); |
74be8313 | 2671 | bypass = stream_getc(s); |
c44ab6f1 AK |
2672 | |
2673 | if (BGP_DEBUG(zebra, ZEBRA)) | |
74e2bd89 | 2674 | zlog_debug( |
74be8313 AK |
2675 | "Rx add ESI %s originator-ip %pI4 active %u df_pref %u %s", |
2676 | esi_to_str(&esi, buf, sizeof(buf)), &originator_ip, | |
2677 | active, df_pref, bypass ? "bypass" : ""); | |
c44ab6f1 | 2678 | |
74be8313 AK |
2679 | bgp_evpn_local_es_add(bgp, &esi, originator_ip, active, df_pref, |
2680 | !!bypass); | |
c44ab6f1 AK |
2681 | |
2682 | return 0; | |
2683 | } | |
2684 | ||
2685 | static int bgp_zebra_process_local_es_del(ZAPI_CALLBACK_ARGS) | |
50f74cf1 | 2686 | { |
2687 | esi_t esi; | |
2688 | struct bgp *bgp = NULL; | |
2689 | struct stream *s = NULL; | |
2690 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2691 | |
2692 | memset(&esi, 0, sizeof(esi_t)); | |
c44ab6f1 AK |
2693 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2694 | if (!bgp) | |
2695 | return 0; | |
2696 | ||
2697 | s = zclient->ibuf; | |
2698 | stream_get(&esi, s, sizeof(esi_t)); | |
2699 | ||
2700 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2701 | zlog_debug("Rx del ESI %s", | |
2702 | esi_to_str(&esi, buf, sizeof(buf))); | |
2703 | ||
2704 | bgp_evpn_local_es_del(bgp, &esi); | |
2705 | ||
2706 | return 0; | |
2707 | } | |
2708 | ||
2709 | static int bgp_zebra_process_local_es_evi(ZAPI_CALLBACK_ARGS) | |
2710 | { | |
2711 | esi_t esi; | |
2712 | vni_t vni; | |
2713 | struct bgp *bgp; | |
2714 | struct stream *s; | |
2715 | char buf[ESI_STR_LEN]; | |
50f74cf1 | 2716 | |
2717 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2718 | if (!bgp) | |
2719 | return 0; | |
2720 | ||
2721 | s = zclient->ibuf; | |
2722 | stream_get(&esi, s, sizeof(esi_t)); | |
c44ab6f1 | 2723 | vni = stream_getl(s); |
50f74cf1 | 2724 | |
2725 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c44ab6f1 AK |
2726 | zlog_debug("Rx %s ESI %s VNI %u", |
2727 | ZEBRA_VNI_ADD ? "add" : "del", | |
2728 | esi_to_str(&esi, buf, sizeof(buf)), vni); | |
50f74cf1 | 2729 | |
c44ab6f1 AK |
2730 | if (cmd == ZEBRA_LOCAL_ES_EVI_ADD) |
2731 | bgp_evpn_local_es_evi_add(bgp, &esi, vni); | |
50f74cf1 | 2732 | else |
c44ab6f1 AK |
2733 | bgp_evpn_local_es_evi_del(bgp, &esi, vni); |
2734 | ||
50f74cf1 | 2735 | return 0; |
2736 | } | |
2737 | ||
121f9dee | 2738 | static int bgp_zebra_process_local_l3vni(ZAPI_CALLBACK_ARGS) |
fe1dc5a3 | 2739 | { |
c48d9f5f | 2740 | int filter = 0; |
b67a60d2 | 2741 | vni_t l3vni = 0; |
14e814ea | 2742 | struct ethaddr svi_rmac, vrr_rmac = {.octet = {0} }; |
b67a60d2 | 2743 | struct in_addr originator_ip; |
fe1dc5a3 | 2744 | struct stream *s; |
0483af6e | 2745 | ifindex_t svi_ifindex; |
14e814ea | 2746 | bool is_anycast_mac = false; |
fe1dc5a3 | 2747 | |
14e814ea | 2748 | memset(&svi_rmac, 0, sizeof(struct ethaddr)); |
b67a60d2 | 2749 | memset(&originator_ip, 0, sizeof(struct in_addr)); |
fe1dc5a3 MK |
2750 | s = zclient->ibuf; |
2751 | l3vni = stream_getl(s); | |
b67a60d2 | 2752 | if (cmd == ZEBRA_L3VNI_ADD) { |
14e814ea | 2753 | stream_get(&svi_rmac, s, sizeof(struct ethaddr)); |
b67a60d2 | 2754 | originator_ip.s_addr = stream_get_ipv4(s); |
c48d9f5f | 2755 | stream_get(&filter, s, sizeof(int)); |
0483af6e | 2756 | svi_ifindex = stream_getl(s); |
14e814ea CS |
2757 | stream_get(&vrr_rmac, s, sizeof(struct ethaddr)); |
2758 | is_anycast_mac = stream_getl(s); | |
fe1dc5a3 | 2759 | |
0483af6e | 2760 | if (BGP_DEBUG(zebra, ZEBRA)) |
c0d72166 DS |
2761 | zlog_debug( |
2762 | "Rx L3-VNI ADD VRF %s VNI %u RMAC svi-mac %pEA vrr-mac %pEA filter %s svi-if %u", | |
2763 | vrf_id_to_name(vrf_id), l3vni, &svi_rmac, | |
2764 | &vrr_rmac, | |
2765 | filter ? "prefix-routes-only" : "none", | |
2766 | svi_ifindex); | |
fe1dc5a3 | 2767 | |
14e814ea CS |
2768 | bgp_evpn_local_l3vni_add(l3vni, vrf_id, &svi_rmac, &vrr_rmac, |
2769 | originator_ip, filter, svi_ifindex, | |
2770 | is_anycast_mac); | |
0483af6e | 2771 | } else { |
2772 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2773 | zlog_debug("Rx L3-VNI DEL VRF %s VNI %u", | |
2774 | vrf_id_to_name(vrf_id), l3vni); | |
2775 | ||
fe1dc5a3 | 2776 | bgp_evpn_local_l3vni_del(l3vni, vrf_id); |
0483af6e | 2777 | } |
fe1dc5a3 MK |
2778 | |
2779 | return 0; | |
2780 | } | |
2781 | ||
121f9dee | 2782 | static int bgp_zebra_process_local_vni(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2783 | { |
d62a17ae | 2784 | struct stream *s; |
2785 | vni_t vni; | |
2786 | struct bgp *bgp; | |
a4d82a8a | 2787 | struct in_addr vtep_ip = {INADDR_ANY}; |
29c53922 | 2788 | vrf_id_t tenant_vrf_id = VRF_DEFAULT; |
76d07c7a | 2789 | struct in_addr mcast_grp = {INADDR_ANY}; |
d62a17ae | 2790 | |
2791 | s = zclient->ibuf; | |
2792 | vni = stream_getl(s); | |
121f9dee | 2793 | if (cmd == ZEBRA_VNI_ADD) { |
d62a17ae | 2794 | vtep_ip.s_addr = stream_get_ipv4(s); |
29c53922 | 2795 | stream_get(&tenant_vrf_id, s, sizeof(vrf_id_t)); |
76d07c7a | 2796 | mcast_grp.s_addr = stream_get_ipv4(s); |
29c53922 MK |
2797 | } |
2798 | ||
d62a17ae | 2799 | bgp = bgp_lookup_by_vrf_id(vrf_id); |
2800 | if (!bgp) | |
2801 | return 0; | |
2802 | ||
2803 | if (BGP_DEBUG(zebra, ZEBRA)) | |
29c53922 | 2804 | zlog_debug("Rx VNI %s VRF %s VNI %u tenant-vrf %s", |
121f9dee | 2805 | (cmd == ZEBRA_VNI_ADD) ? "add" : "del", |
a4d82a8a PZ |
2806 | vrf_id_to_name(vrf_id), vni, |
2807 | vrf_id_to_name(tenant_vrf_id)); | |
d62a17ae | 2808 | |
121f9dee | 2809 | if (cmd == ZEBRA_VNI_ADD) |
d62a17ae | 2810 | return bgp_evpn_local_vni_add( |
975a328e DA |
2811 | bgp, vni, |
2812 | vtep_ip.s_addr != INADDR_ANY ? vtep_ip : bgp->router_id, | |
76d07c7a | 2813 | tenant_vrf_id, mcast_grp); |
d62a17ae | 2814 | else |
2815 | return bgp_evpn_local_vni_del(bgp, vni); | |
128ea8ab | 2816 | } |
2817 | ||
121f9dee | 2818 | static int bgp_zebra_process_local_macip(ZAPI_CALLBACK_ARGS) |
128ea8ab | 2819 | { |
d62a17ae | 2820 | struct stream *s; |
2821 | vni_t vni; | |
2822 | struct bgp *bgp; | |
2823 | struct ethaddr mac; | |
2824 | struct ipaddr ip; | |
2825 | int ipa_len; | |
f07e1c99 | 2826 | uint8_t flags = 0; |
2827 | uint32_t seqnum = 0; | |
ec0ab544 | 2828 | int state = 0; |
c44ab6f1 AK |
2829 | char buf2[ESI_STR_LEN]; |
2830 | esi_t esi; | |
d62a17ae | 2831 | |
2832 | memset(&ip, 0, sizeof(ip)); | |
2833 | s = zclient->ibuf; | |
2834 | vni = stream_getl(s); | |
28328ea9 | 2835 | stream_get(&mac.octet, s, ETH_ALEN); |
d62a17ae | 2836 | ipa_len = stream_getl(s); |
2837 | if (ipa_len != 0 && ipa_len != IPV4_MAX_BYTELEN | |
2838 | && ipa_len != IPV6_MAX_BYTELEN) { | |
e50f7cfd | 2839 | flog_err(EC_BGP_MACIP_LEN, |
1c50c1c0 | 2840 | "%u:Recv MACIP %s with invalid IP addr length %d", |
121f9dee | 2841 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1c50c1c0 | 2842 | ipa_len); |
d62a17ae | 2843 | return -1; |
2844 | } | |
2845 | ||
2846 | if (ipa_len) { | |
2847 | ip.ipa_type = | |
2848 | (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 : IPADDR_V6; | |
2849 | stream_get(&ip.ip.addr, s, ipa_len); | |
2850 | } | |
121f9dee | 2851 | if (cmd == ZEBRA_MACIP_ADD) { |
f07e1c99 | 2852 | flags = stream_getc(s); |
2853 | seqnum = stream_getl(s); | |
c44ab6f1 | 2854 | stream_get(&esi, s, sizeof(esi_t)); |
ec0ab544 AK |
2855 | } else { |
2856 | state = stream_getl(s); | |
35fb444b | 2857 | memset(&esi, 0, sizeof(esi_t)); |
f07e1c99 | 2858 | } |
d62a17ae | 2859 | |
2860 | bgp = bgp_lookup_by_vrf_id(vrf_id); | |
2861 | if (!bgp) | |
2862 | return 0; | |
2863 | ||
2864 | if (BGP_DEBUG(zebra, ZEBRA)) | |
c0d72166 | 2865 | zlog_debug( |
2dd0dde7 | 2866 | "%u:Recv MACIP %s f 0x%x MAC %pEA IP %pIA VNI %u seq %u state %d ESI %s", |
c0d72166 DS |
2867 | vrf_id, (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags, |
2868 | &mac, &ip, vni, seqnum, state, | |
2869 | esi_to_str(&esi, buf2, sizeof(buf2))); | |
d62a17ae | 2870 | |
121f9dee | 2871 | if (cmd == ZEBRA_MACIP_ADD) |
f07e1c99 | 2872 | return bgp_evpn_local_macip_add(bgp, vni, &mac, &ip, |
c44ab6f1 | 2873 | flags, seqnum, &esi); |
d62a17ae | 2874 | else |
ec0ab544 | 2875 | return bgp_evpn_local_macip_del(bgp, vni, &mac, &ip, state); |
128ea8ab | 2876 | } |
6aeb9e78 | 2877 | |
121f9dee | 2878 | static void bgp_zebra_process_local_ip_prefix(ZAPI_CALLBACK_ARGS) |
31310b25 MK |
2879 | { |
2880 | struct stream *s = NULL; | |
2881 | struct bgp *bgp_vrf = NULL; | |
2882 | struct prefix p; | |
31310b25 MK |
2883 | |
2884 | memset(&p, 0, sizeof(struct prefix)); | |
2885 | s = zclient->ibuf; | |
2886 | stream_get(&p, s, sizeof(struct prefix)); | |
2887 | ||
2888 | bgp_vrf = bgp_lookup_by_vrf_id(vrf_id); | |
2889 | if (!bgp_vrf) | |
2890 | return; | |
2891 | ||
2892 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2dbe669b | 2893 | zlog_debug("Recv prefix %pFX %s on vrf %s", &p, |
31310b25 MK |
2894 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", |
2895 | vrf_id_to_name(vrf_id)); | |
2896 | ||
2897 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) { | |
2898 | ||
2899 | if (p.family == AF_INET) | |
d90b788e A |
2900 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2901 | AFI_IP, SAFI_UNICAST); | |
31310b25 | 2902 | else |
d90b788e A |
2903 | bgp_evpn_advertise_type5_route(bgp_vrf, &p, NULL, |
2904 | AFI_IP6, SAFI_UNICAST); | |
31310b25 MK |
2905 | |
2906 | } else { | |
2907 | if (p.family == AF_INET) | |
d90b788e A |
2908 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP, |
2909 | SAFI_UNICAST); | |
31310b25 | 2910 | else |
d90b788e A |
2911 | bgp_evpn_withdraw_type5_route(bgp_vrf, &p, AFI_IP6, |
2912 | SAFI_UNICAST); | |
31310b25 MK |
2913 | } |
2914 | } | |
2915 | ||
121f9dee | 2916 | static void bgp_zebra_process_label_chunk(ZAPI_CALLBACK_ARGS) |
955bfd98 PZ |
2917 | { |
2918 | struct stream *s = NULL; | |
2919 | uint8_t response_keep; | |
2920 | uint32_t first; | |
2921 | uint32_t last; | |
aec865e4 FR |
2922 | uint8_t proto; |
2923 | unsigned short instance; | |
955bfd98 PZ |
2924 | |
2925 | s = zclient->ibuf; | |
aec865e4 FR |
2926 | STREAM_GETC(s, proto); |
2927 | STREAM_GETW(s, instance); | |
955bfd98 PZ |
2928 | STREAM_GETC(s, response_keep); |
2929 | STREAM_GETL(s, first); | |
2930 | STREAM_GETL(s, last); | |
2931 | ||
aec865e4 | 2932 | if (zclient->redist_default != proto) { |
e50f7cfd | 2933 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong proto %u", |
1c50c1c0 | 2934 | proto); |
aec865e4 FR |
2935 | return; |
2936 | } | |
2937 | if (zclient->instance != instance) { | |
e50f7cfd | 2938 | flog_err(EC_BGP_LM_ERROR, "Got LM msg with wrong instance %u", |
1c50c1c0 | 2939 | proto); |
aec865e4 FR |
2940 | return; |
2941 | } | |
2942 | ||
955bfd98 PZ |
2943 | if (first > last || |
2944 | first < MPLS_LABEL_UNRESERVED_MIN || | |
2945 | last > MPLS_LABEL_UNRESERVED_MAX) { | |
2946 | ||
e50f7cfd | 2947 | flog_err(EC_BGP_LM_ERROR, "%s: Invalid Label chunk: %u - %u", |
1c50c1c0 | 2948 | __func__, first, last); |
955bfd98 PZ |
2949 | return; |
2950 | } | |
2951 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
2952 | zlog_debug("Label Chunk assign: %u - %u (%u) ", | |
2953 | first, last, response_keep); | |
2954 | } | |
2955 | ||
e70e9f8e | 2956 | bgp_lp_event_chunk(response_keep, first, last); |
955bfd98 PZ |
2957 | |
2958 | stream_failure: /* for STREAM_GETX */ | |
2959 | return; | |
2960 | } | |
2961 | ||
342213ea DS |
2962 | extern struct zebra_privs_t bgpd_privs; |
2963 | ||
138c5a74 DS |
2964 | static int bgp_ifp_create(struct interface *ifp) |
2965 | { | |
ef7bd2a3 DS |
2966 | struct bgp *bgp; |
2967 | ||
2968 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2969 | zlog_debug("Rx Intf add VRF %u IF %s", ifp->vrf_id, ifp->name); | |
2970 | ||
2971 | bgp = bgp_lookup_by_vrf_id(ifp->vrf_id); | |
2972 | if (!bgp) | |
2973 | return 0; | |
2974 | ||
2975 | bgp_mac_add_mac_entry(ifp); | |
2976 | ||
2977 | bgp_update_interface_nbrs(bgp, ifp, ifp); | |
0d020cd6 | 2978 | hook_call(bgp_vrf_status_changed, bgp, ifp); |
138c5a74 DS |
2979 | return 0; |
2980 | } | |
2981 | ||
f533be73 | 2982 | void bgp_zebra_init(struct thread_master *master, unsigned short instance) |
718e3744 | 2983 | { |
d62a17ae | 2984 | zclient_num_connects = 0; |
2985 | ||
138c5a74 DS |
2986 | if_zapi_callbacks(bgp_ifp_create, bgp_ifp_up, |
2987 | bgp_ifp_down, bgp_ifp_destroy); | |
2988 | ||
d62a17ae | 2989 | /* Set default values. */ |
26f63a1e | 2990 | zclient = zclient_new(master, &zclient_options_default); |
342213ea | 2991 | zclient_init(zclient, ZEBRA_ROUTE_BGP, 0, &bgpd_privs); |
d62a17ae | 2992 | zclient->zebra_connected = bgp_zebra_connected; |
2993 | zclient->router_id_update = bgp_router_id_update; | |
d62a17ae | 2994 | zclient->interface_address_add = bgp_interface_address_add; |
2995 | zclient->interface_address_delete = bgp_interface_address_delete; | |
2996 | zclient->interface_nbr_address_add = bgp_interface_nbr_address_add; | |
2997 | zclient->interface_nbr_address_delete = | |
2998 | bgp_interface_nbr_address_delete; | |
2999 | zclient->interface_vrf_update = bgp_interface_vrf_update; | |
74489921 RW |
3000 | zclient->redistribute_route_add = zebra_read_route; |
3001 | zclient->redistribute_route_del = zebra_read_route; | |
d62a17ae | 3002 | zclient->nexthop_update = bgp_read_nexthop_update; |
3003 | zclient->import_check_update = bgp_read_import_check_update; | |
3004 | zclient->fec_update = bgp_read_fec_update; | |
c44ab6f1 AK |
3005 | zclient->local_es_add = bgp_zebra_process_local_es_add; |
3006 | zclient->local_es_del = bgp_zebra_process_local_es_del; | |
d62a17ae | 3007 | zclient->local_vni_add = bgp_zebra_process_local_vni; |
c44ab6f1 AK |
3008 | zclient->local_es_evi_add = bgp_zebra_process_local_es_evi; |
3009 | zclient->local_es_evi_del = bgp_zebra_process_local_es_evi; | |
d62a17ae | 3010 | zclient->local_vni_del = bgp_zebra_process_local_vni; |
3011 | zclient->local_macip_add = bgp_zebra_process_local_macip; | |
3012 | zclient->local_macip_del = bgp_zebra_process_local_macip; | |
fe1dc5a3 MK |
3013 | zclient->local_l3vni_add = bgp_zebra_process_local_l3vni; |
3014 | zclient->local_l3vni_del = bgp_zebra_process_local_l3vni; | |
31310b25 MK |
3015 | zclient->local_ip_prefix_add = bgp_zebra_process_local_ip_prefix; |
3016 | zclient->local_ip_prefix_del = bgp_zebra_process_local_ip_prefix; | |
955bfd98 | 3017 | zclient->label_chunk = bgp_zebra_process_label_chunk; |
30d50e6d PG |
3018 | zclient->rule_notify_owner = rule_notify_owner; |
3019 | zclient->ipset_notify_owner = ipset_notify_owner; | |
3020 | zclient->ipset_entry_notify_owner = ipset_entry_notify_owner; | |
c16a0a62 | 3021 | zclient->iptable_notify_owner = iptable_notify_owner; |
a77e2f4b | 3022 | zclient->route_notify_owner = bgp_zebra_route_notify_owner; |
f533be73 | 3023 | zclient->instance = instance; |
718e3744 | 3024 | } |
bb86c601 | 3025 | |
d62a17ae | 3026 | void bgp_zebra_destroy(void) |
bb86c601 | 3027 | { |
d62a17ae | 3028 | if (zclient == NULL) |
3029 | return; | |
3030 | zclient_stop(zclient); | |
3031 | zclient_free(zclient); | |
3032 | zclient = NULL; | |
bb86c601 | 3033 | } |
afbb1c59 | 3034 | |
d62a17ae | 3035 | int bgp_zebra_num_connects(void) |
afbb1c59 | 3036 | { |
d62a17ae | 3037 | return zclient_num_connects; |
afbb1c59 | 3038 | } |
30d50e6d | 3039 | |
6cfe5d15 PG |
3040 | void bgp_send_pbr_rule_action(struct bgp_pbr_action *pbra, |
3041 | struct bgp_pbr_rule *pbr, | |
3042 | bool install) | |
30d50e6d PG |
3043 | { |
3044 | struct stream *s; | |
3045 | ||
6cfe5d15 | 3046 | if (pbra->install_in_progress && !pbr) |
30d50e6d | 3047 | return; |
6cfe5d15 PG |
3048 | if (pbr && pbr->install_in_progress) |
3049 | return; | |
3050 | if (BGP_DEBUG(zebra, ZEBRA)) { | |
3051 | if (pbr) | |
15569c58 | 3052 | zlog_debug("%s: table %d (ip rule) %d", __func__, |
6cfe5d15 PG |
3053 | pbra->table_id, install); |
3054 | else | |
15569c58 | 3055 | zlog_debug("%s: table %d fwmark %d %d", __func__, |
6cfe5d15 PG |
3056 | pbra->table_id, pbra->fwmark, install); |
3057 | } | |
30d50e6d PG |
3058 | s = zclient->obuf; |
3059 | stream_reset(s); | |
3060 | ||
3061 | zclient_create_header(s, | |
3062 | install ? ZEBRA_RULE_ADD : ZEBRA_RULE_DELETE, | |
3063 | VRF_DEFAULT); | |
3064 | stream_putl(s, 1); /* send one pbr action */ | |
3065 | ||
6cfe5d15 | 3066 | bgp_encode_pbr_rule_action(s, pbra, pbr); |
30d50e6d PG |
3067 | |
3068 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e DS |
3069 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) |
3070 | && install) { | |
6cfe5d15 PG |
3071 | if (!pbr) |
3072 | pbra->install_in_progress = true; | |
3073 | else | |
3074 | pbr->install_in_progress = true; | |
3075 | } | |
30d50e6d PG |
3076 | } |
3077 | ||
3078 | void bgp_send_pbr_ipset_match(struct bgp_pbr_match *pbrim, bool install) | |
3079 | { | |
3080 | struct stream *s; | |
3081 | ||
3082 | if (pbrim->install_in_progress) | |
3083 | return; | |
f0936054 | 3084 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3085 | zlog_debug("%s: name %s type %d %d, ID %u", __func__, |
3086 | pbrim->ipset_name, pbrim->type, install, | |
3087 | pbrim->unique); | |
30d50e6d PG |
3088 | s = zclient->obuf; |
3089 | stream_reset(s); | |
3090 | ||
3091 | zclient_create_header(s, | |
3092 | install ? ZEBRA_IPSET_CREATE : | |
3093 | ZEBRA_IPSET_DESTROY, | |
3094 | VRF_DEFAULT); | |
3095 | ||
3096 | stream_putl(s, 1); /* send one pbr action */ | |
3097 | ||
3098 | bgp_encode_pbr_ipset_match(s, pbrim); | |
3099 | ||
3100 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3101 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3102 | pbrim->install_in_progress = true; |
3103 | } | |
3104 | ||
3105 | void bgp_send_pbr_ipset_entry_match(struct bgp_pbr_match_entry *pbrime, | |
3106 | bool install) | |
3107 | { | |
3108 | struct stream *s; | |
3109 | ||
3110 | if (pbrime->install_in_progress) | |
3111 | return; | |
f0936054 | 3112 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3113 | zlog_debug("%s: name %s %d %d, ID %u", __func__, |
3114 | pbrime->backpointer->ipset_name, pbrime->unique, | |
3115 | install, pbrime->unique); | |
30d50e6d PG |
3116 | s = zclient->obuf; |
3117 | stream_reset(s); | |
3118 | ||
3119 | zclient_create_header(s, | |
3120 | install ? ZEBRA_IPSET_ENTRY_ADD : | |
3121 | ZEBRA_IPSET_ENTRY_DELETE, | |
3122 | VRF_DEFAULT); | |
3123 | ||
3124 | stream_putl(s, 1); /* send one pbr action */ | |
3125 | ||
3126 | bgp_encode_pbr_ipset_entry_match(s, pbrime); | |
3127 | ||
3128 | stream_putw_at(s, 0, stream_get_endp(s)); | |
8a3f8f2e | 3129 | if ((zclient_send_message(zclient) != ZCLIENT_SEND_FAILURE) && install) |
30d50e6d PG |
3130 | pbrime->install_in_progress = true; |
3131 | } | |
c16a0a62 | 3132 | |
8f242187 PG |
3133 | static void bgp_encode_pbr_interface_list(struct bgp *bgp, struct stream *s, |
3134 | uint8_t family) | |
4762c213 PG |
3135 | { |
3136 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3137 | struct bgp_pbr_interface_head *head; | |
3138 | struct bgp_pbr_interface *pbr_if; | |
3139 | struct interface *ifp; | |
3140 | ||
3141 | if (!bgp_pbr_cfg) | |
3142 | return; | |
8f242187 PG |
3143 | if (family == AF_INET) |
3144 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3145 | else | |
3146 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3147 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3148 | ifp = if_lookup_by_name(pbr_if->name, bgp->vrf_id); |
4762c213 PG |
3149 | if (ifp) |
3150 | stream_putl(s, ifp->ifindex); | |
3151 | } | |
3152 | } | |
3153 | ||
8f242187 | 3154 | static int bgp_pbr_get_ifnumber(struct bgp *bgp, uint8_t family) |
4762c213 PG |
3155 | { |
3156 | struct bgp_pbr_config *bgp_pbr_cfg = bgp->bgp_pbr_cfg; | |
3157 | struct bgp_pbr_interface_head *head; | |
3158 | struct bgp_pbr_interface *pbr_if; | |
3159 | int cnt = 0; | |
3160 | ||
3161 | if (!bgp_pbr_cfg) | |
3162 | return 0; | |
8f242187 PG |
3163 | if (family == AF_INET) |
3164 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv4); | |
3165 | else | |
3166 | head = &(bgp_pbr_cfg->ifaces_by_name_ipv6); | |
4762c213 | 3167 | RB_FOREACH (pbr_if, bgp_pbr_interface_head, head) { |
a36898e7 | 3168 | if (if_lookup_by_name(pbr_if->name, bgp->vrf_id)) |
4762c213 PG |
3169 | cnt++; |
3170 | } | |
3171 | return cnt; | |
3172 | } | |
3173 | ||
c16a0a62 PG |
3174 | void bgp_send_pbr_iptable(struct bgp_pbr_action *pba, |
3175 | struct bgp_pbr_match *pbm, | |
3176 | bool install) | |
3177 | { | |
3178 | struct stream *s; | |
b5c40105 | 3179 | int ret = 0; |
4762c213 | 3180 | int nb_interface; |
c16a0a62 PG |
3181 | |
3182 | if (pbm->install_iptable_in_progress) | |
3183 | return; | |
f0936054 | 3184 | if (BGP_DEBUG(zebra, ZEBRA)) |
15569c58 DA |
3185 | zlog_debug("%s: name %s type %d mark %d %d, ID %u", __func__, |
3186 | pbm->ipset_name, pbm->type, pba->fwmark, install, | |
88055124 | 3187 | pbm->unique2); |
c16a0a62 PG |
3188 | s = zclient->obuf; |
3189 | stream_reset(s); | |
3190 | ||
3191 | zclient_create_header(s, | |
3192 | install ? ZEBRA_IPTABLE_ADD : | |
3193 | ZEBRA_IPTABLE_DELETE, | |
3194 | VRF_DEFAULT); | |
3195 | ||
3196 | bgp_encode_pbr_iptable_match(s, pba, pbm); | |
8f242187 | 3197 | nb_interface = bgp_pbr_get_ifnumber(pba->bgp, pbm->family); |
4762c213 PG |
3198 | stream_putl(s, nb_interface); |
3199 | if (nb_interface) | |
8f242187 | 3200 | bgp_encode_pbr_interface_list(pba->bgp, s, pbm->family); |
c16a0a62 | 3201 | stream_putw_at(s, 0, stream_get_endp(s)); |
b5c40105 PG |
3202 | ret = zclient_send_message(zclient); |
3203 | if (install) { | |
8a3f8f2e | 3204 | if (ret != ZCLIENT_SEND_FAILURE) |
b5c40105 PG |
3205 | pba->refcnt++; |
3206 | else | |
3207 | pbm->install_iptable_in_progress = true; | |
a6b07429 | 3208 | } |
c16a0a62 | 3209 | } |
f7df1907 PG |
3210 | |
3211 | /* inject in table <table_id> a default route to: | |
3212 | * - if nexthop IP is present : to this nexthop | |
3213 | * - if vrf is different from local : to the matching VRF | |
3214 | */ | |
3215 | void bgp_zebra_announce_default(struct bgp *bgp, struct nexthop *nh, | |
3216 | afi_t afi, uint32_t table_id, bool announce) | |
3217 | { | |
3218 | struct zapi_nexthop *api_nh; | |
3219 | struct zapi_route api; | |
3220 | struct prefix p; | |
3221 | ||
f01e580f PG |
3222 | if (!nh || (nh->type != NEXTHOP_TYPE_IPV4 |
3223 | && nh->type != NEXTHOP_TYPE_IPV6) | |
f7df1907 PG |
3224 | || nh->vrf_id == VRF_UNKNOWN) |
3225 | return; | |
3226 | memset(&p, 0, sizeof(struct prefix)); | |
f01e580f | 3227 | if (afi != AFI_IP && afi != AFI_IP6) |
f7df1907 | 3228 | return; |
f01e580f | 3229 | p.family = afi2family(afi); |
f7df1907 PG |
3230 | memset(&api, 0, sizeof(api)); |
3231 | api.vrf_id = bgp->vrf_id; | |
3232 | api.type = ZEBRA_ROUTE_BGP; | |
3233 | api.safi = SAFI_UNICAST; | |
3234 | api.prefix = p; | |
3235 | api.tableid = table_id; | |
3236 | api.nexthop_num = 1; | |
3237 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); | |
3238 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); | |
3239 | api_nh = &api.nexthops[0]; | |
3240 | ||
38a8c751 DS |
3241 | api.distance = ZEBRA_EBGP_DISTANCE_DEFAULT; |
3242 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); | |
3243 | ||
f7df1907 | 3244 | /* redirect IP */ |
f01e580f | 3245 | if (afi == AFI_IP && nh->gate.ipv4.s_addr != INADDR_ANY) { |
f7df1907 PG |
3246 | char buff[PREFIX_STRLEN]; |
3247 | ||
3248 | api_nh->vrf_id = nh->vrf_id; | |
3249 | api_nh->gate.ipv4 = nh->gate.ipv4; | |
3250 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
3251 | ||
3252 | inet_ntop(AF_INET, &(nh->gate.ipv4), buff, INET_ADDRSTRLEN); | |
3253 | if (BGP_DEBUG(zebra, ZEBRA)) | |
f01e580f PG |
3254 | zlog_debug("BGP: %s default route to %s table %d (redirect IP)", |
3255 | announce ? "adding" : "withdrawing", | |
3256 | buff, table_id); | |
3257 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3258 | : ZEBRA_ROUTE_DELETE, | |
3259 | zclient, &api); | |
3260 | } else if (afi == AFI_IP6 && | |
3261 | memcmp(&nh->gate.ipv6, | |
3262 | &in6addr_any, sizeof(struct in6_addr))) { | |
3263 | char buff[PREFIX_STRLEN]; | |
3264 | ||
3265 | api_nh->vrf_id = nh->vrf_id; | |
3266 | memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, | |
3267 | sizeof(struct in6_addr)); | |
3268 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
3269 | ||
3270 | inet_ntop(AF_INET6, &(nh->gate.ipv6), buff, INET_ADDRSTRLEN); | |
3271 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3272 | zlog_debug("BGP: %s default route to %s table %d (redirect IP)", | |
d887503c | 3273 | announce ? "adding" : "withdrawing", |
f7df1907 PG |
3274 | buff, table_id); |
3275 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3276 | : ZEBRA_ROUTE_DELETE, | |
3277 | zclient, &api); | |
3278 | } else if (nh->vrf_id != bgp->vrf_id) { | |
3279 | struct vrf *vrf; | |
eb4244f8 | 3280 | struct interface *ifp; |
f7df1907 | 3281 | |
eb4244f8 | 3282 | vrf = vrf_lookup_by_id(nh->vrf_id); |
f7df1907 PG |
3283 | if (!vrf) |
3284 | return; | |
eb4244f8 PG |
3285 | /* create default route with interface <VRF> |
3286 | * with nexthop-vrf <VRF> | |
f7df1907 | 3287 | */ |
eb4244f8 PG |
3288 | ifp = if_lookup_by_name_all_vrf(vrf->name); |
3289 | if (!ifp) | |
3290 | return; | |
3291 | api_nh->vrf_id = nh->vrf_id; | |
3292 | api_nh->type = NEXTHOP_TYPE_IFINDEX; | |
3293 | api_nh->ifindex = ifp->ifindex; | |
3294 | if (BGP_DEBUG(zebra, ZEBRA)) | |
d887503c PG |
3295 | zlog_info("BGP: %s default route to %s table %d (redirect VRF)", |
3296 | announce ? "adding" : "withdrawing", | |
eb4244f8 PG |
3297 | vrf->name, table_id); |
3298 | zclient_route_send(announce ? ZEBRA_ROUTE_ADD | |
3299 | : ZEBRA_ROUTE_DELETE, | |
3300 | zclient, &api); | |
f7df1907 PG |
3301 | return; |
3302 | } | |
3303 | } | |
85ef4179 | 3304 | |
3305 | /* Send capabilities to RIB */ | |
3306 | int bgp_zebra_send_capabilities(struct bgp *bgp, bool disable) | |
3307 | { | |
3308 | struct zapi_cap api; | |
3309 | int ret = BGP_GR_SUCCESS; | |
3310 | ||
3311 | if (zclient == NULL) { | |
3312 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3313 | zlog_debug("zclient invalid"); | |
3314 | return BGP_GR_FAILURE; | |
3315 | } | |
3316 | ||
3317 | /* Check if the client is connected */ | |
3318 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3319 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3320 | zlog_debug("client not connected"); | |
3321 | return BGP_GR_FAILURE; | |
3322 | } | |
3323 | ||
3324 | /* Check if capability is already sent. If the flag force is set | |
3325 | * send the capability since this can be initial bgp configuration | |
3326 | */ | |
3327 | memset(&api, 0, sizeof(struct zapi_cap)); | |
3328 | if (disable) { | |
3329 | api.cap = ZEBRA_CLIENT_GR_DISABLE; | |
3330 | api.vrf_id = bgp->vrf_id; | |
3331 | } else { | |
3332 | api.cap = ZEBRA_CLIENT_GR_CAPABILITIES; | |
3333 | api.stale_removal_time = bgp->rib_stale_time; | |
3334 | api.vrf_id = bgp->vrf_id; | |
3335 | } | |
3336 | ||
36235319 | 3337 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3338 | == ZCLIENT_SEND_FAILURE) { |
2ba1fe69 | 3339 | zlog_err("error sending capability"); |
85ef4179 | 3340 | ret = BGP_GR_FAILURE; |
3341 | } else { | |
3342 | if (disable) | |
3343 | bgp->present_zebra_gr_state = ZEBRA_GR_DISABLE; | |
3344 | else | |
3345 | bgp->present_zebra_gr_state = ZEBRA_GR_ENABLE; | |
3346 | ||
3347 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3348 | zlog_debug("send capabilty success"); | |
3349 | ret = BGP_GR_SUCCESS; | |
3350 | } | |
3351 | return ret; | |
3352 | } | |
3353 | ||
3354 | /* Send route update pesding or completed status to RIB for the | |
3355 | * specific AFI, SAFI | |
3356 | */ | |
3357 | int bgp_zebra_update(afi_t afi, safi_t safi, vrf_id_t vrf_id, int type) | |
3358 | { | |
2ba1fe69 | 3359 | struct zapi_cap api = {0}; |
85ef4179 | 3360 | |
3361 | if (zclient == NULL) { | |
3362 | if (BGP_DEBUG(zebra, ZEBRA)) | |
2ba1fe69 | 3363 | zlog_debug("zclient == NULL, invalid"); |
85ef4179 | 3364 | return BGP_GR_FAILURE; |
3365 | } | |
3366 | ||
3367 | /* Check if the client is connected */ | |
3368 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3369 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3370 | zlog_debug("client not connected"); | |
3371 | return BGP_GR_FAILURE; | |
3372 | } | |
3373 | ||
85ef4179 | 3374 | api.afi = afi; |
3375 | api.safi = safi; | |
3376 | api.vrf_id = vrf_id; | |
3377 | api.cap = type; | |
3378 | ||
36235319 | 3379 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3380 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3381 | if (BGP_DEBUG(zebra, ZEBRA)) |
3382 | zlog_debug("error sending capability"); | |
3383 | return BGP_GR_FAILURE; | |
3384 | } | |
3385 | return BGP_GR_SUCCESS; | |
3386 | } | |
3387 | ||
3388 | ||
85ef4179 | 3389 | /* Send RIB stale timer update */ |
3390 | int bgp_zebra_stale_timer_update(struct bgp *bgp) | |
3391 | { | |
3392 | struct zapi_cap api; | |
3393 | ||
3394 | if (zclient == NULL) { | |
3395 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3396 | zlog_debug("zclient invalid"); | |
3397 | return BGP_GR_FAILURE; | |
3398 | } | |
3399 | ||
3400 | /* Check if the client is connected */ | |
3401 | if ((zclient->sock < 0) || (zclient->t_connect)) { | |
3402 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3403 | zlog_debug("client not connected"); | |
3404 | return BGP_GR_FAILURE; | |
3405 | } | |
3406 | ||
3407 | memset(&api, 0, sizeof(struct zapi_cap)); | |
3408 | api.cap = ZEBRA_CLIENT_RIB_STALE_TIME; | |
3409 | api.stale_removal_time = bgp->rib_stale_time; | |
3410 | api.vrf_id = bgp->vrf_id; | |
36235319 | 3411 | if (zclient_capabilities_send(ZEBRA_CLIENT_CAPABILITIES, zclient, &api) |
7cfdb485 | 3412 | == ZCLIENT_SEND_FAILURE) { |
85ef4179 | 3413 | if (BGP_DEBUG(zebra, ZEBRA)) |
3414 | zlog_debug("error sending capability"); | |
3415 | return BGP_GR_FAILURE; | |
3416 | } | |
3417 | if (BGP_DEBUG(zebra, ZEBRA)) | |
3418 | zlog_debug("send capabilty success"); | |
3419 | return BGP_GR_SUCCESS; | |
3420 | } |