]>
Commit | Line | Data |
---|---|---|
c43ed2e4 DS |
1 | /** |
2 | * bgp_bfd.c: BGP BFD handling routines | |
3 | * | |
4 | * @copyright Copyright (C) 2015 Cumulus Networks, Inc. | |
5 | * | |
6 | * This file is part of GNU Zebra. | |
7 | * | |
8 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2, or (at your option) any | |
11 | * later version. | |
12 | * | |
13 | * GNU Zebra is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
896014f4 DL |
18 | * You should have received a copy of the GNU General Public License along |
19 | * with this program; see the file COPYING; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
c43ed2e4 DS |
21 | */ |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "command.h" | |
26 | #include "linklist.h" | |
27 | #include "memory.h" | |
28 | #include "prefix.h" | |
29 | #include "thread.h" | |
30 | #include "buffer.h" | |
31 | #include "stream.h" | |
21bfce98 | 32 | #include "vrf.h" |
c43ed2e4 | 33 | #include "zclient.h" |
7f342629 | 34 | #include "bfd.h" |
856ca177 | 35 | #include "lib/json.h" |
039f3a34 DS |
36 | #include "filter.h" |
37 | ||
c43ed2e4 | 38 | #include "bgpd/bgpd.h" |
7f342629 | 39 | #include "bgp_fsm.h" |
c43ed2e4 DS |
40 | #include "bgpd/bgp_bfd.h" |
41 | #include "bgpd/bgp_debug.h" | |
42 | #include "bgpd/bgp_vty.h" | |
43 | ||
21bfce98 RZ |
44 | DEFINE_MTYPE_STATIC(BGPD, BFD_CONFIG, "BFD configuration data"); |
45 | ||
c43ed2e4 DS |
46 | extern struct zclient *zclient; |
47 | ||
21bfce98 RZ |
48 | static void bfd_session_status_update(struct bfd_session_params *bsp, |
49 | const struct bfd_session_status *bss, | |
50 | void *arg) | |
c43ed2e4 | 51 | { |
21bfce98 | 52 | struct peer *peer = arg; |
7f342629 | 53 | |
259f4236 | 54 | if (BGP_DEBUG(bfd, BFD_LIB)) |
21bfce98 RZ |
55 | zlog_debug("%s: neighbor %s vrf %s(%u) bfd state %s -> %s", |
56 | __func__, peer->conf_if ? peer->conf_if : peer->host, | |
57 | bfd_sess_vrf(bsp), bfd_sess_vrf_id(bsp), | |
58 | bfd_get_status_str(bss->previous_state), | |
59 | bfd_get_status_str(bss->state)); | |
60 | ||
61 | if (bss->state == BSS_DOWN && bss->previous_state == BSS_UP) { | |
62 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_MODE) | |
63 | && bfd_sess_cbit(bsp) && !bss->remote_cbit) { | |
259f4236 | 64 | if (BGP_DEBUG(bfd, BFD_LIB)) |
21bfce98 RZ |
65 | zlog_info( |
66 | "%s BFD DOWN message ignored in the process of graceful restart when C bit is cleared", | |
67 | peer->host); | |
68 | return; | |
69 | } | |
70 | peer->last_reset = PEER_DOWN_BFD_DOWN; | |
71 | BGP_EVENT_ADD(peer, BGP_Stop); | |
72 | } | |
c43ed2e4 | 73 | |
21bfce98 RZ |
74 | if (bss->state == BSS_UP && bss->previous_state != BSS_UP |
75 | && peer->status != Established) { | |
76 | if (!BGP_PEER_START_SUPPRESSED(peer)) { | |
77 | bgp_fsm_nht_update(peer, true); | |
78 | BGP_EVENT_ADD(peer, BGP_Start); | |
79 | } | |
80 | } | |
c43ed2e4 DS |
81 | } |
82 | ||
21bfce98 | 83 | void bgp_peer_config_apply(struct peer *p, struct peer_group *pg) |
c43ed2e4 | 84 | { |
21bfce98 RZ |
85 | struct listnode *n; |
86 | struct peer *pn; | |
87 | struct peer *gconfig; | |
88 | ||
89 | /* When called on a group, apply to all peers. */ | |
90 | if (CHECK_FLAG(p->sflags, PEER_STATUS_GROUP)) { | |
91 | for (ALL_LIST_ELEMENTS_RO(p->group->peer, n, pn)) | |
92 | bgp_peer_config_apply(pn, pg); | |
93 | return; | |
94 | } | |
986aa00f | 95 | |
21bfce98 RZ |
96 | /* No group, just use current configuration. */ |
97 | if (pg == NULL || pg->conf->bfd_config == NULL) { | |
98 | bfd_sess_set_timers(p->bfd_config->session, | |
99 | p->bfd_config->detection_multiplier, | |
100 | p->bfd_config->min_rx, | |
101 | p->bfd_config->min_tx); | |
102 | bfd_sess_set_cbit(p->bfd_config->session, p->bfd_config->cbit); | |
103 | bfd_sess_set_profile(p->bfd_config->session, | |
104 | p->bfd_config->profile); | |
105 | bfd_sess_install(p->bfd_config->session); | |
106 | return; | |
107 | } | |
986aa00f | 108 | |
21bfce98 RZ |
109 | /* |
110 | * Check if the group configuration was overwritten or apply group | |
111 | * configuration. | |
112 | */ | |
113 | gconfig = pg->conf; | |
114 | ||
115 | /* | |
116 | * If using default control plane independent configuration, | |
117 | * then prefer group's (e.g. it means it wasn't manually configured). | |
118 | */ | |
119 | if (!p->bfd_config->cbit) | |
120 | bfd_sess_set_cbit(p->bfd_config->session, | |
121 | gconfig->bfd_config->cbit); | |
122 | else | |
123 | bfd_sess_set_cbit(p->bfd_config->session, p->bfd_config->cbit); | |
986aa00f | 124 | |
21bfce98 RZ |
125 | /* If no profile was specified in peer, then use the group profile. */ |
126 | if (p->bfd_config->profile[0] == 0) | |
127 | bfd_sess_set_profile(p->bfd_config->session, | |
128 | gconfig->bfd_config->profile); | |
d62a17ae | 129 | else |
21bfce98 RZ |
130 | bfd_sess_set_profile(p->bfd_config->session, |
131 | p->bfd_config->profile); | |
132 | ||
133 | /* If no specific timers were configured, then use the group timers. */ | |
134 | if (p->bfd_config->detection_multiplier == BFD_DEF_DETECT_MULT | |
135 | || p->bfd_config->min_rx == BFD_DEF_MIN_RX | |
136 | || p->bfd_config->min_tx == BFD_DEF_MIN_TX) | |
137 | bfd_sess_set_timers(p->bfd_config->session, | |
138 | gconfig->bfd_config->detection_multiplier, | |
139 | gconfig->bfd_config->min_rx, | |
140 | gconfig->bfd_config->min_tx); | |
141 | else | |
142 | bfd_sess_set_timers(p->bfd_config->session, | |
143 | p->bfd_config->detection_multiplier, | |
144 | p->bfd_config->min_rx, | |
145 | p->bfd_config->min_tx); | |
146 | ||
147 | bfd_sess_install(p->bfd_config->session); | |
c43ed2e4 DS |
148 | } |
149 | ||
21bfce98 | 150 | void bgp_peer_bfd_update_source(struct peer *p) |
c43ed2e4 | 151 | { |
21bfce98 RZ |
152 | struct bfd_session_params *session = p->bfd_config->session; |
153 | bool changed = false; | |
154 | int family; | |
155 | union { | |
156 | struct in_addr v4; | |
157 | struct in6_addr v6; | |
158 | } src, dst; | |
159 | ||
160 | /* Nothing to do for groups. */ | |
161 | if (CHECK_FLAG(p->sflags, PEER_STATUS_GROUP)) | |
95a99382 | 162 | return; |
d62a17ae | 163 | |
21bfce98 RZ |
164 | /* Update peer's source/destination addresses. */ |
165 | bfd_sess_addresses(session, &family, &src.v6, &dst.v6); | |
166 | if (family == AF_INET) { | |
167 | if ((p->su_local | |
168 | && p->su_local->sin.sin_addr.s_addr != src.v4.s_addr) | |
169 | || p->su.sin.sin_addr.s_addr != dst.v4.s_addr) { | |
259f4236 | 170 | if (BGP_DEBUG(bfd, BFD_LIB)) |
21bfce98 RZ |
171 | zlog_debug( |
172 | "%s: address [%pI4->%pI4] to [%pI4->%pI4]", | |
173 | __func__, &src.v4, &dst.v4, | |
174 | p->su_local ? &p->su_local->sin.sin_addr | |
175 | : &src.v4, | |
176 | &p->su.sin.sin_addr); | |
177 | ||
178 | bfd_sess_set_ipv4_addrs( | |
179 | session, | |
180 | p->su_local ? &p->su_local->sin.sin_addr : NULL, | |
181 | &p->su.sin.sin_addr); | |
182 | changed = true; | |
183 | } | |
184 | } else { | |
185 | if ((p->su_local | |
186 | && memcmp(&p->su_local->sin6, &src.v6, sizeof(src.v6))) | |
187 | || memcmp(&p->su.sin6, &dst.v6, sizeof(dst.v6))) { | |
259f4236 | 188 | if (BGP_DEBUG(bfd, BFD_LIB)) |
21bfce98 RZ |
189 | zlog_debug( |
190 | "%s: address [%pI6->%pI6] to [%pI6->%pI6]", | |
191 | __func__, &src.v6, &dst.v6, | |
192 | p->su_local | |
193 | ? &p->su_local->sin6.sin6_addr | |
194 | : &src.v6, | |
195 | &p->su.sin6.sin6_addr); | |
196 | ||
197 | bfd_sess_set_ipv6_addrs( | |
198 | session, | |
199 | p->su_local ? &p->su_local->sin6.sin6_addr | |
200 | : NULL, | |
201 | &p->su.sin6.sin6_addr); | |
202 | changed = true; | |
203 | } | |
204 | } | |
d62a17ae | 205 | |
21bfce98 RZ |
206 | /* Update interface. */ |
207 | if (p->nexthop.ifp && bfd_sess_interface(session) == NULL) { | |
259f4236 | 208 | if (BGP_DEBUG(bfd, BFD_LIB)) |
21bfce98 RZ |
209 | zlog_debug("%s: interface none to %s", __func__, |
210 | p->nexthop.ifp->name); | |
d62a17ae | 211 | |
21bfce98 RZ |
212 | bfd_sess_set_interface(session, p->nexthop.ifp->name); |
213 | changed = true; | |
d62a17ae | 214 | } |
21bfce98 RZ |
215 | |
216 | /* | |
217 | * Update TTL. | |
218 | * | |
219 | * Two cases: | |
220 | * - We detected that the peer is a hop away from us (remove multi hop). | |
221 | * (this happens when `p->shared_network` is set to `true`) | |
222 | * - eBGP multi hop / TTL security changed. | |
9beff0bd | 223 | */ |
21bfce98 | 224 | if (!PEER_IS_MULTIHOP(p) && bfd_sess_hop_count(session) > 1) { |
259f4236 | 225 | if (BGP_DEBUG(bfd, BFD_LIB)) |
21bfce98 RZ |
226 | zlog_debug("%s: TTL %d to 1", __func__, |
227 | bfd_sess_hop_count(session)); | |
02012bef | 228 | |
21bfce98 RZ |
229 | bfd_sess_set_hop_count(session, 1); |
230 | changed = true; | |
02012bef | 231 | } |
21bfce98 | 232 | if (PEER_IS_MULTIHOP(p) && p->ttl != bfd_sess_hop_count(session)) { |
259f4236 | 233 | if (BGP_DEBUG(bfd, BFD_LIB)) |
21bfce98 RZ |
234 | zlog_debug("%s: TTL %d to %d", __func__, |
235 | bfd_sess_hop_count(session), p->ttl); | |
02012bef | 236 | |
21bfce98 RZ |
237 | bfd_sess_set_hop_count(session, p->ttl); |
238 | changed = true; | |
02012bef RZ |
239 | } |
240 | ||
21bfce98 RZ |
241 | /* Update VRF. */ |
242 | if (bfd_sess_vrf_id(session) != p->bgp->vrf_id) { | |
259f4236 | 243 | if (BGP_DEBUG(bfd, BFD_LIB)) |
21bfce98 RZ |
244 | zlog_debug( |
245 | "%s: VRF %s(%d) to %s(%d)", __func__, | |
246 | bfd_sess_vrf(session), bfd_sess_vrf_id(session), | |
247 | vrf_id_to_name(p->bgp->vrf_id), p->bgp->vrf_id); | |
248 | ||
249 | bfd_sess_set_vrf(session, p->bgp->vrf_id); | |
250 | changed = true; | |
02012bef RZ |
251 | } |
252 | ||
21bfce98 RZ |
253 | if (changed) |
254 | bfd_sess_install(session); | |
c43ed2e4 DS |
255 | } |
256 | ||
21bfce98 RZ |
257 | /** |
258 | * Reset BFD configuration data structure to its defaults settings. | |
c43ed2e4 | 259 | */ |
21bfce98 | 260 | static void bgp_peer_bfd_reset(struct peer *p) |
c43ed2e4 | 261 | { |
21bfce98 RZ |
262 | /* Set defaults. */ |
263 | p->bfd_config->detection_multiplier = BFD_DEF_DETECT_MULT; | |
264 | p->bfd_config->min_rx = BFD_DEF_MIN_RX; | |
265 | p->bfd_config->min_tx = BFD_DEF_MIN_TX; | |
266 | p->bfd_config->cbit = false; | |
267 | p->bfd_config->profile[0] = 0; | |
c43ed2e4 DS |
268 | } |
269 | ||
21bfce98 | 270 | void bgp_peer_configure_bfd(struct peer *p, bool manual) |
c43ed2e4 | 271 | { |
21bfce98 RZ |
272 | /* Groups should not call this. */ |
273 | assert(!CHECK_FLAG(p->sflags, PEER_STATUS_GROUP)); | |
c43ed2e4 | 274 | |
21bfce98 RZ |
275 | /* Already configured, skip it. */ |
276 | if (p->bfd_config) { | |
277 | /* If manually active update flag. */ | |
278 | if (!p->bfd_config->manual) | |
279 | p->bfd_config->manual = manual; | |
c43ed2e4 | 280 | |
d62a17ae | 281 | return; |
21bfce98 | 282 | } |
c43ed2e4 | 283 | |
21bfce98 RZ |
284 | /* Allocate memory for configuration overrides. */ |
285 | p->bfd_config = XCALLOC(MTYPE_BFD_CONFIG, sizeof(*p->bfd_config)); | |
286 | p->bfd_config->manual = manual; | |
c43ed2e4 | 287 | |
21bfce98 RZ |
288 | /* Create new session and assign callback. */ |
289 | p->bfd_config->session = bfd_sess_new(bfd_session_status_update, p); | |
290 | bgp_peer_bfd_reset(p); | |
c43ed2e4 | 291 | |
21bfce98 RZ |
292 | /* Configure session with basic BGP peer data. */ |
293 | if (p->su.sa.sa_family == AF_INET) | |
294 | bfd_sess_set_ipv4_addrs(p->bfd_config->session, | |
295 | p->su_local ? &p->su_local->sin.sin_addr | |
296 | : NULL, | |
297 | &p->su.sin.sin_addr); | |
298 | else | |
299 | bfd_sess_set_ipv6_addrs( | |
300 | p->bfd_config->session, | |
301 | p->su_local ? &p->su_local->sin6.sin6_addr : NULL, | |
302 | &p->su.sin6.sin6_addr); | |
c43ed2e4 | 303 | |
21bfce98 RZ |
304 | bfd_sess_set_vrf(p->bfd_config->session, p->bgp->vrf_id); |
305 | bfd_sess_set_hop_count(p->bfd_config->session, | |
306 | PEER_IS_MULTIHOP(p) ? p->ttl : 1); | |
c43ed2e4 | 307 | |
21bfce98 RZ |
308 | if (p->nexthop.ifp) |
309 | bfd_sess_set_interface(p->bfd_config->session, | |
310 | p->nexthop.ifp->name); | |
fe0c4ed7 | 311 | |
21bfce98 RZ |
312 | bfd_sess_enable(p->bfd_config->session, true); |
313 | bgp_peer_config_apply(p, p->group); | |
fe0c4ed7 PG |
314 | } |
315 | ||
21bfce98 | 316 | static void bgp_peer_remove_bfd(struct peer *p) |
986aa00f | 317 | { |
21bfce98 RZ |
318 | /* Groups should not call this. */ |
319 | assert(!CHECK_FLAG(p->sflags, PEER_STATUS_GROUP)); | |
d62a17ae | 320 | |
21bfce98 RZ |
321 | /* |
322 | * Peer configuration was removed, however we must check if there | |
323 | * is still a group configuration to keep this running. | |
324 | */ | |
325 | if (p->group && p->group->conf->bfd_config) { | |
326 | p->bfd_config->manual = false; | |
327 | bgp_peer_bfd_reset(p); | |
328 | bgp_peer_config_apply(p, p->group); | |
d62a17ae | 329 | return; |
d62a17ae | 330 | } |
c43ed2e4 | 331 | |
21bfce98 RZ |
332 | bfd_sess_free(&p->bfd_config->session); |
333 | XFREE(MTYPE_BFD_CONFIG, p->bfd_config); | |
c43ed2e4 DS |
334 | } |
335 | ||
21bfce98 | 336 | static void bgp_group_configure_bfd(struct peer *p) |
68fe91d6 | 337 | { |
21bfce98 RZ |
338 | struct listnode *n; |
339 | struct peer *pn; | |
68fe91d6 | 340 | |
21bfce98 RZ |
341 | /* Peers should not call this. */ |
342 | assert(CHECK_FLAG(p->sflags, PEER_STATUS_GROUP)); | |
68fe91d6 | 343 | |
21bfce98 RZ |
344 | /* Already allocated: do nothing. */ |
345 | if (p->bfd_config) | |
d62a17ae | 346 | return; |
68fe91d6 | 347 | |
21bfce98 | 348 | p->bfd_config = XCALLOC(MTYPE_BFD_CONFIG, sizeof(*p->bfd_config)); |
7555dc61 | 349 | |
21bfce98 RZ |
350 | /* Set defaults. */ |
351 | p->bfd_config->detection_multiplier = BFD_DEF_DETECT_MULT; | |
352 | p->bfd_config->min_rx = BFD_DEF_MIN_RX; | |
353 | p->bfd_config->min_tx = BFD_DEF_MIN_TX; | |
68fe91d6 | 354 | |
21bfce98 RZ |
355 | for (ALL_LIST_ELEMENTS_RO(p->group->peer, n, pn)) |
356 | bgp_peer_configure_bfd(pn, false); | |
68fe91d6 | 357 | } |
358 | ||
21bfce98 | 359 | static void bgp_group_remove_bfd(struct peer *p) |
c43ed2e4 | 360 | { |
21bfce98 RZ |
361 | struct listnode *n; |
362 | struct peer *pn; | |
d62a17ae | 363 | |
21bfce98 RZ |
364 | /* Peers should not call this. */ |
365 | assert(CHECK_FLAG(p->sflags, PEER_STATUS_GROUP)); | |
d62a17ae | 366 | |
21bfce98 RZ |
367 | /* Already freed: do nothing. */ |
368 | if (p->bfd_config == NULL) | |
369 | return; | |
137147c6 | 370 | |
21bfce98 RZ |
371 | /* Free configuration and point to `NULL`. */ |
372 | XFREE(MTYPE_BFD_CONFIG, p->bfd_config); | |
2dbe669b | 373 | |
21bfce98 RZ |
374 | /* Now that it is `NULL` recalculate configuration for all peers. */ |
375 | for (ALL_LIST_ELEMENTS_RO(p->group->peer, n, pn)) { | |
376 | if (pn->bfd_config->manual) | |
377 | bgp_peer_config_apply(pn, NULL); | |
2dbe669b | 378 | else |
21bfce98 | 379 | bgp_peer_remove_bfd(pn); |
d62a17ae | 380 | } |
c43ed2e4 DS |
381 | } |
382 | ||
21bfce98 | 383 | void bgp_peer_remove_bfd_config(struct peer *p) |
986aa00f | 384 | { |
21bfce98 RZ |
385 | if (CHECK_FLAG(p->sflags, PEER_STATUS_GROUP)) |
386 | bgp_group_remove_bfd(p); | |
387 | else | |
388 | bgp_peer_remove_bfd(p); | |
02012bef RZ |
389 | } |
390 | ||
c43ed2e4 DS |
391 | /* |
392 | * bgp_bfd_peer_config_write - Write the peer BFD configuration. | |
393 | */ | |
21bfce98 RZ |
394 | void bgp_bfd_peer_config_write(struct vty *vty, const struct peer *peer, |
395 | const char *addr) | |
c43ed2e4 | 396 | { |
21bfce98 RZ |
397 | /* |
398 | * Always show group BFD configuration, but peer only when explicitly | |
399 | * configured. | |
400 | */ | |
401 | if ((!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) | |
402 | && peer->bfd_config->manual) | |
403 | || CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) { | |
a0841732 RZ |
404 | #if HAVE_BFDD > 0 |
405 | vty_out(vty, " neighbor %s bfd\n", addr); | |
406 | #else | |
d62a17ae | 407 | vty_out(vty, " neighbor %s bfd %d %d %d\n", addr, |
21bfce98 RZ |
408 | peer->bfd_config->detection_multiplier, |
409 | peer->bfd_config->min_rx, peer->bfd_config->min_tx); | |
a0841732 | 410 | #endif /* HAVE_BFDD */ |
02012bef | 411 | } |
dcffea69 | 412 | |
21bfce98 RZ |
413 | if (peer->bfd_config->profile[0]) |
414 | vty_out(vty, " neighbor %s bfd profile %s\n", addr, | |
415 | peer->bfd_config->profile); | |
416 | ||
417 | if (peer->bfd_config->cbit) | |
418 | vty_out(vty, " neighbor %s bfd check-control-plane-failure\n", | |
419 | addr); | |
c43ed2e4 DS |
420 | } |
421 | ||
422 | /* | |
423 | * bgp_bfd_show_info - Show the peer BFD information. | |
424 | */ | |
21bfce98 | 425 | void bgp_bfd_show_info(struct vty *vty, const struct peer *peer, |
d62a17ae | 426 | json_object *json_neigh) |
c43ed2e4 | 427 | { |
21bfce98 RZ |
428 | if (peer->bfd_config->session) |
429 | bfd_sess_show(vty, json_neigh, peer->bfd_config->session); | |
c43ed2e4 DS |
430 | } |
431 | ||
432 | DEFUN (neighbor_bfd, | |
433 | neighbor_bfd_cmd, | |
9ccf14f7 | 434 | "neighbor <A.B.C.D|X:X::X:X|WORD> bfd", |
c43ed2e4 DS |
435 | NEIGHBOR_STR |
436 | NEIGHBOR_ADDR_STR2 | |
437 | "Enables BFD support\n") | |
438 | { | |
d62a17ae | 439 | int idx_peer = 1; |
440 | struct peer *peer; | |
c43ed2e4 | 441 | |
d62a17ae | 442 | peer = peer_and_group_lookup_vty(vty, argv[idx_peer]->arg); |
443 | if (!peer) | |
444 | return CMD_WARNING_CONFIG_FAILED; | |
c43ed2e4 | 445 | |
21bfce98 RZ |
446 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
447 | bgp_group_configure_bfd(peer); | |
448 | else | |
449 | bgp_peer_configure_bfd(peer, true); | |
c43ed2e4 | 450 | |
d62a17ae | 451 | return CMD_SUCCESS; |
c43ed2e4 DS |
452 | } |
453 | ||
64dc4b2d RZ |
454 | #if HAVE_BFDD > 0 |
455 | DEFUN_HIDDEN( | |
456 | #else | |
457 | DEFUN( | |
458 | #endif /* HAVE_BFDD */ | |
459 | neighbor_bfd_param, | |
c43ed2e4 | 460 | neighbor_bfd_param_cmd, |
9ccf14f7 | 461 | "neighbor <A.B.C.D|X:X::X:X|WORD> bfd (2-255) (50-60000) (50-60000)", |
c43ed2e4 DS |
462 | NEIGHBOR_STR |
463 | NEIGHBOR_ADDR_STR2 | |
464 | "Enables BFD support\n" | |
465 | "Detect Multiplier\n" | |
466 | "Required min receive interval\n" | |
467 | "Desired min transmit interval\n") | |
468 | { | |
d62a17ae | 469 | int idx_peer = 1; |
470 | int idx_number_1 = 3; | |
471 | int idx_number_2 = 4; | |
472 | int idx_number_3 = 5; | |
21bfce98 | 473 | long detection_multiplier, min_rx, min_tx; |
d62a17ae | 474 | struct peer *peer; |
d62a17ae | 475 | |
476 | peer = peer_and_group_lookup_vty(vty, argv[idx_peer]->arg); | |
477 | if (!peer) | |
478 | return CMD_WARNING_CONFIG_FAILED; | |
479 | ||
21bfce98 RZ |
480 | detection_multiplier = strtol(argv[idx_number_1]->arg, NULL, 10); |
481 | min_rx = strtol(argv[idx_number_2]->arg, NULL, 10); | |
482 | min_tx = strtol(argv[idx_number_3]->arg, NULL, 10); | |
d62a17ae | 483 | |
21bfce98 RZ |
484 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
485 | bgp_group_configure_bfd(peer); | |
d62a17ae | 486 | else |
21bfce98 | 487 | bgp_peer_configure_bfd(peer, true); |
d62a17ae | 488 | |
21bfce98 RZ |
489 | peer->bfd_config->detection_multiplier = detection_multiplier; |
490 | peer->bfd_config->min_rx = min_rx; | |
491 | peer->bfd_config->min_tx = min_tx; | |
492 | bgp_peer_config_apply(peer, peer->group); | |
dcffea69 | 493 | |
dcffea69 PG |
494 | return CMD_SUCCESS; |
495 | } | |
496 | ||
dcffea69 PG |
497 | DEFUN (neighbor_bfd_check_controlplane_failure, |
498 | neighbor_bfd_check_controlplane_failure_cmd, | |
499 | "[no] neighbor <A.B.C.D|X:X::X:X|WORD> bfd check-control-plane-failure", | |
500 | NO_STR | |
501 | NEIGHBOR_STR | |
502 | NEIGHBOR_ADDR_STR2 | |
503 | "BFD support\n" | |
504 | "Link dataplane status with BGP controlplane\n") | |
505 | { | |
506 | const char *no = strmatch(argv[0]->text, "no") ? "no" : NULL; | |
507 | int idx_peer = 0; | |
508 | struct peer *peer; | |
dcffea69 PG |
509 | |
510 | if (no) | |
511 | idx_peer = 2; | |
512 | else | |
513 | idx_peer = 1; | |
514 | peer = peer_and_group_lookup_vty(vty, argv[idx_peer]->arg); | |
515 | if (!peer) { | |
516 | vty_out(vty, "%% Specify remote-as or peer-group commands first\n"); | |
517 | return CMD_WARNING_CONFIG_FAILED; | |
518 | } | |
21bfce98 RZ |
519 | |
520 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) | |
521 | bgp_group_configure_bfd(peer); | |
522 | else | |
523 | bgp_peer_configure_bfd(peer, true); | |
524 | ||
525 | peer->bfd_config->cbit = no == NULL; | |
526 | bgp_peer_config_apply(peer, peer->group); | |
527 | ||
528 | return CMD_SUCCESS; | |
dcffea69 PG |
529 | } |
530 | ||
c43ed2e4 DS |
531 | DEFUN (no_neighbor_bfd, |
532 | no_neighbor_bfd_cmd, | |
64dc4b2d RZ |
533 | #if HAVE_BFDD > 0 |
534 | "no neighbor <A.B.C.D|X:X::X:X|WORD> bfd", | |
535 | #else | |
5bf15956 | 536 | "no neighbor <A.B.C.D|X:X::X:X|WORD> bfd [(2-255) (50-60000) (50-60000)]", |
64dc4b2d | 537 | #endif /* HAVE_BFDD */ |
c43ed2e4 DS |
538 | NO_STR |
539 | NEIGHBOR_STR | |
540 | NEIGHBOR_ADDR_STR2 | |
5bf15956 | 541 | "Disables BFD support\n" |
64dc4b2d | 542 | #if HAVE_BFDD == 0 |
5bf15956 DW |
543 | "Detect Multiplier\n" |
544 | "Required min receive interval\n" | |
64dc4b2d RZ |
545 | "Desired min transmit interval\n" |
546 | #endif /* !HAVE_BFDD */ | |
547 | ) | |
c43ed2e4 | 548 | { |
d62a17ae | 549 | int idx_peer = 2; |
550 | struct peer *peer; | |
c43ed2e4 | 551 | |
d62a17ae | 552 | peer = peer_and_group_lookup_vty(vty, argv[idx_peer]->arg); |
553 | if (!peer) | |
554 | return CMD_WARNING_CONFIG_FAILED; | |
c43ed2e4 | 555 | |
21bfce98 RZ |
556 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
557 | bgp_group_remove_bfd(peer); | |
558 | else | |
559 | bgp_peer_remove_bfd(peer); | |
986aa00f | 560 | |
d62a17ae | 561 | return CMD_SUCCESS; |
986aa00f | 562 | } |
563 | ||
02012bef RZ |
564 | #if HAVE_BFDD > 0 |
565 | DEFUN(neighbor_bfd_profile, neighbor_bfd_profile_cmd, | |
566 | "neighbor <A.B.C.D|X:X::X:X|WORD> bfd profile BFDPROF", | |
567 | NEIGHBOR_STR | |
568 | NEIGHBOR_ADDR_STR2 | |
569 | "BFD integration\n" | |
570 | BFD_PROFILE_STR | |
571 | BFD_PROFILE_NAME_STR) | |
572 | { | |
573 | int idx_peer = 1, idx_prof = 4; | |
574 | struct peer *peer; | |
02012bef RZ |
575 | |
576 | peer = peer_and_group_lookup_vty(vty, argv[idx_peer]->arg); | |
577 | if (!peer) | |
578 | return CMD_WARNING_CONFIG_FAILED; | |
579 | ||
21bfce98 RZ |
580 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
581 | bgp_group_configure_bfd(peer); | |
582 | else | |
583 | bgp_peer_configure_bfd(peer, true); | |
584 | ||
585 | strlcpy(peer->bfd_config->profile, argv[idx_prof]->arg, | |
586 | sizeof(peer->bfd_config->profile)); | |
587 | bgp_peer_config_apply(peer, peer->group); | |
02012bef RZ |
588 | |
589 | return CMD_SUCCESS; | |
590 | } | |
591 | ||
592 | DEFUN(no_neighbor_bfd_profile, no_neighbor_bfd_profile_cmd, | |
593 | "no neighbor <A.B.C.D|X:X::X:X|WORD> bfd profile [BFDPROF]", | |
594 | NO_STR | |
595 | NEIGHBOR_STR | |
596 | NEIGHBOR_ADDR_STR2 | |
597 | "BFD integration\n" | |
598 | BFD_PROFILE_STR | |
599 | BFD_PROFILE_NAME_STR) | |
600 | { | |
601 | int idx_peer = 2; | |
602 | struct peer *peer; | |
02012bef RZ |
603 | |
604 | peer = peer_and_group_lookup_vty(vty, argv[idx_peer]->arg); | |
605 | if (!peer) | |
606 | return CMD_WARNING_CONFIG_FAILED; | |
607 | ||
21bfce98 RZ |
608 | if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP)) |
609 | bgp_group_configure_bfd(peer); | |
610 | else | |
611 | bgp_peer_configure_bfd(peer, true); | |
02012bef | 612 | |
21bfce98 RZ |
613 | peer->bfd_config->profile[0] = 0; |
614 | bgp_peer_config_apply(peer, peer->group); | |
02012bef RZ |
615 | |
616 | return CMD_SUCCESS; | |
617 | } | |
618 | #endif /* HAVE_BFDD */ | |
619 | ||
21bfce98 | 620 | void bgp_bfd_init(struct thread_master *tm) |
c43ed2e4 | 621 | { |
d62a17ae | 622 | /* Initialize BFD client functions */ |
21bfce98 | 623 | bfd_protocol_integration_init(zclient, tm); |
d62a17ae | 624 | |
625 | /* "neighbor bfd" commands. */ | |
626 | install_element(BGP_NODE, &neighbor_bfd_cmd); | |
627 | install_element(BGP_NODE, &neighbor_bfd_param_cmd); | |
dcffea69 | 628 | install_element(BGP_NODE, &neighbor_bfd_check_controlplane_failure_cmd); |
d62a17ae | 629 | install_element(BGP_NODE, &no_neighbor_bfd_cmd); |
02012bef RZ |
630 | |
631 | #if HAVE_BFDD > 0 | |
632 | install_element(BGP_NODE, &neighbor_bfd_profile_cmd); | |
633 | install_element(BGP_NODE, &no_neighbor_bfd_profile_cmd); | |
634 | #endif /* HAVE_BFDD */ | |
c43ed2e4 | 635 | } |