]>
git.proxmox.com Git - mirror_frr.git/blob - bfdd/bfdd_nb_config.c
2 * BFD daemon northbound implementation.
4 * Copyright (C) 2019 Network Device Education Foundation, Inc. ("NetDEF")
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
26 #include "lib/northbound.h"
34 static void bfd_session_get_key(bool mhop
, const struct lyd_node
*dnode
,
37 const char *ifname
= NULL
, *vrfname
= NULL
;
38 struct sockaddr_any psa
, lsa
;
40 /* Required destination parameter. */
41 strtosa(yang_dnode_get_string(dnode
, "./dest-addr"), &psa
);
43 /* Get optional source address. */
44 memset(&lsa
, 0, sizeof(lsa
));
45 if (yang_dnode_exists(dnode
, "./source-addr"))
46 strtosa(yang_dnode_get_string(dnode
, "./source-addr"), &lsa
);
48 ifname
= yang_dnode_get_string(dnode
, "./interface");
49 vrfname
= yang_dnode_get_string(dnode
, "./vrf");
51 if (strcmp(ifname
, "*") == 0)
54 /* Generate the corresponding key. */
55 gen_bfd_key(bk
, &psa
, &lsa
, mhop
, ifname
, vrfname
);
63 static int session_iter_cb(const struct lyd_node
*dnode
, void *arg
)
65 struct session_iter
*iter
= arg
;
68 ifname
= yang_dnode_get_string(dnode
, "./interface");
70 if (strmatch(ifname
, "*"))
71 iter
->wildcard
= true;
75 return YANG_ITER_CONTINUE
;
78 static int bfd_session_create(struct nb_cb_create_args
*args
, bool mhop
)
80 const struct lyd_node
*sess_dnode
;
81 struct session_iter iter
;
82 struct bfd_session
*bs
;
90 switch (args
->event
) {
93 * When `dest-addr` is IPv6 and link-local we must
94 * require interface name, otherwise we can't figure
95 * which interface to use to send the packets.
97 yang_dnode_get_prefix(&p
, args
->dnode
, "./dest-addr");
99 ifname
= yang_dnode_get_string(args
->dnode
, "./interface");
101 if (p
.family
== AF_INET6
&& IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
)
102 && strcmp(ifname
, "*") == 0) {
104 args
->errmsg
, args
->errmsg_len
,
105 "When using link-local you must specify an interface");
106 return NB_ERR_VALIDATION
;
110 iter
.wildcard
= false;
112 sess_dnode
= yang_dnode_get_parent(args
->dnode
, "sessions");
114 dest
= yang_dnode_get_string(args
->dnode
, "./dest-addr");
115 vrfname
= yang_dnode_get_string(args
->dnode
, "./vrf");
118 source
= yang_dnode_get_string(args
->dnode
, "./source-addr");
120 yang_dnode_iterate(session_iter_cb
, &iter
, sess_dnode
,
121 "./multi-hop[source-addr='%s'][dest-addr='%s'][vrf='%s']",
122 source
, dest
, vrfname
);
124 yang_dnode_iterate(session_iter_cb
, &iter
, sess_dnode
,
125 "./single-hop[dest-addr='%s'][vrf='%s']",
129 if (iter
.wildcard
&& iter
.count
> 1) {
131 args
->errmsg
, args
->errmsg_len
,
132 "It is not allowed to configure the same peer with and without ifname");
133 return NB_ERR_VALIDATION
;
138 bfd_session_get_key(mhop
, args
->dnode
, &bk
);
139 bs
= bfd_key_lookup(bk
);
141 /* This session was already configured by another daemon. */
143 /* Now it is configured also by CLI. */
144 SET_FLAG(bs
->flags
, BFD_SESS_FLAG_CONFIG
);
147 args
->resource
->ptr
= bs
;
151 bs
= bfd_session_new();
153 /* Fill the session key. */
154 bfd_session_get_key(mhop
, args
->dnode
, &bs
->key
);
156 /* Set configuration flags. */
158 SET_FLAG(bs
->flags
, BFD_SESS_FLAG_CONFIG
);
160 SET_FLAG(bs
->flags
, BFD_SESS_FLAG_MH
);
161 if (bs
->key
.family
== AF_INET6
)
162 SET_FLAG(bs
->flags
, BFD_SESS_FLAG_IPV6
);
164 args
->resource
->ptr
= bs
;
168 bs
= args
->resource
->ptr
;
170 /* Only attempt to registrate if freshly allocated. */
171 if (bs
->discrs
.my_discr
== 0 && bs_registrate(bs
) == NULL
)
172 return NB_ERR_RESOURCE
;
174 nb_running_set_entry(args
->dnode
, bs
);
178 bs
= args
->resource
->ptr
;
179 if (bs
->refcount
<= 1)
180 bfd_session_free(bs
);
187 static int bfd_session_destroy(enum nb_event event
,
188 const struct lyd_node
*dnode
, bool mhop
)
190 struct bfd_session
*bs
;
195 bfd_session_get_key(mhop
, dnode
, &bk
);
196 if (bfd_key_lookup(bk
) == NULL
)
197 return NB_ERR_INCONSISTENCY
;
205 bs
= nb_running_unset_entry(dnode
);
206 /* CLI is not using this session anymore. */
207 if (CHECK_FLAG(bs
->flags
, BFD_SESS_FLAG_CONFIG
) == 0)
210 UNSET_FLAG(bs
->flags
, BFD_SESS_FLAG_CONFIG
);
212 /* There are still daemons using it. */
213 if (bs
->refcount
> 0)
216 bfd_session_free(bs
);
228 * XPath: /frr-bfdd:bfdd/bfd
230 int bfdd_bfd_create(struct nb_cb_create_args
*args
)
236 int bfdd_bfd_destroy(struct nb_cb_destroy_args
*args
)
238 switch (args
->event
) {
248 bfd_sessions_remove_manual();
260 * XPath: /frr-bfdd:bfdd/bfd/profile
262 int bfdd_bfd_profile_create(struct nb_cb_create_args
*args
)
264 struct bfd_profile
*bp
;
267 if (args
->event
!= NB_EV_APPLY
)
270 name
= yang_dnode_get_string(args
->dnode
, "./name");
271 bp
= bfd_profile_new(name
);
272 nb_running_set_entry(args
->dnode
, bp
);
277 int bfdd_bfd_profile_destroy(struct nb_cb_destroy_args
*args
)
279 struct bfd_profile
*bp
;
281 if (args
->event
!= NB_EV_APPLY
)
284 bp
= nb_running_unset_entry(args
->dnode
);
285 bfd_profile_free(bp
);
291 * XPath: /frr-bfdd:bfdd/bfd/profile/detection-multiplier
293 int bfdd_bfd_profile_detection_multiplier_modify(struct nb_cb_modify_args
*args
)
295 struct bfd_profile
*bp
;
297 if (args
->event
!= NB_EV_APPLY
)
300 bp
= nb_running_get_entry(args
->dnode
, NULL
, true);
301 bp
->detection_multiplier
= yang_dnode_get_uint8(args
->dnode
, NULL
);
302 bfd_profile_update(bp
);
308 * XPath: /frr-bfdd:bfdd/bfd/profile/desired-transmission-interval
310 int bfdd_bfd_profile_desired_transmission_interval_modify(
311 struct nb_cb_modify_args
*args
)
313 struct bfd_profile
*bp
;
316 switch (args
->event
) {
318 min_tx
= yang_dnode_get_uint32(args
->dnode
, NULL
);
319 if (min_tx
< 10000 || min_tx
> 60000000)
320 return NB_ERR_VALIDATION
;
328 min_tx
= yang_dnode_get_uint32(args
->dnode
, NULL
);
329 bp
= nb_running_get_entry(args
->dnode
, NULL
, true);
330 if (bp
->min_tx
== min_tx
)
334 bfd_profile_update(bp
);
346 * XPath: /frr-bfdd:bfdd/bfd/profile/required-receive-interval
348 int bfdd_bfd_profile_required_receive_interval_modify(
349 struct nb_cb_modify_args
*args
)
351 struct bfd_profile
*bp
;
354 switch (args
->event
) {
356 min_rx
= yang_dnode_get_uint32(args
->dnode
, NULL
);
357 if (min_rx
< 10000 || min_rx
> 60000000)
358 return NB_ERR_VALIDATION
;
366 min_rx
= yang_dnode_get_uint32(args
->dnode
, NULL
);
367 bp
= nb_running_get_entry(args
->dnode
, NULL
, true);
368 if (bp
->min_rx
== min_rx
)
372 bfd_profile_update(bp
);
384 * XPath: /frr-bfdd:bfdd/bfd/profile/administrative-down
386 int bfdd_bfd_profile_administrative_down_modify(struct nb_cb_modify_args
*args
)
388 struct bfd_profile
*bp
;
391 if (args
->event
!= NB_EV_APPLY
)
394 shutdown
= yang_dnode_get_bool(args
->dnode
, NULL
);
395 bp
= nb_running_get_entry(args
->dnode
, NULL
, true);
396 if (bp
->admin_shutdown
== shutdown
)
399 bp
->admin_shutdown
= shutdown
;
400 bfd_profile_update(bp
);
406 * XPath: /frr-bfdd:bfdd/bfd/profile/passive-mode
408 int bfdd_bfd_profile_passive_mode_modify(struct nb_cb_modify_args
*args
)
410 struct bfd_profile
*bp
;
413 if (args
->event
!= NB_EV_APPLY
)
416 passive
= yang_dnode_get_bool(args
->dnode
, NULL
);
417 bp
= nb_running_get_entry(args
->dnode
, NULL
, true);
418 if (bp
->passive
== passive
)
421 bp
->passive
= passive
;
422 bfd_profile_update(bp
);
428 * XPath: /frr-bfdd:bfdd/bfd/profile/minimum-ttl
430 int bfdd_bfd_profile_minimum_ttl_modify(struct nb_cb_modify_args
*args
)
432 struct bfd_profile
*bp
;
435 if (args
->event
!= NB_EV_APPLY
)
438 minimum_ttl
= yang_dnode_get_uint8(args
->dnode
, NULL
);
439 bp
= nb_running_get_entry(args
->dnode
, NULL
, true);
440 if (bp
->minimum_ttl
== minimum_ttl
)
443 bp
->minimum_ttl
= minimum_ttl
;
444 bfd_profile_update(bp
);
449 int bfdd_bfd_profile_minimum_ttl_destroy(struct nb_cb_destroy_args
*args
)
451 struct bfd_profile
*bp
;
453 if (args
->event
!= NB_EV_APPLY
)
456 bp
= nb_running_get_entry(args
->dnode
, NULL
, true);
457 bp
->minimum_ttl
= BFD_DEF_MHOP_TTL
;
458 bfd_profile_update(bp
);
464 * XPath: /frr-bfdd:bfdd/bfd/profile/echo-mode
466 int bfdd_bfd_profile_echo_mode_modify(struct nb_cb_modify_args
*args
)
468 struct bfd_profile
*bp
;
471 if (args
->event
!= NB_EV_APPLY
)
474 echo
= yang_dnode_get_bool(args
->dnode
, NULL
);
475 bp
= nb_running_get_entry(args
->dnode
, NULL
, true);
476 if (bp
->echo_mode
== echo
)
479 bp
->echo_mode
= echo
;
480 bfd_profile_update(bp
);
486 * XPath: /frr-bfdd:bfdd/bfd/profile/desired-echo-echo-transmission-interval
488 int bfdd_bfd_profile_desired_echo_transmission_interval_modify(
489 struct nb_cb_modify_args
*args
)
491 struct bfd_profile
*bp
;
494 switch (args
->event
) {
496 min_rx
= yang_dnode_get_uint32(args
->dnode
, NULL
);
497 if (min_rx
< 10000 || min_rx
> 60000000)
498 return NB_ERR_VALIDATION
;
506 min_rx
= yang_dnode_get_uint32(args
->dnode
, NULL
);
507 bp
= nb_running_get_entry(args
->dnode
, NULL
, true);
508 if (bp
->min_echo_rx
== min_rx
)
511 bp
->min_echo_rx
= min_rx
;
512 bfd_profile_update(bp
);
524 * XPath: /frr-bfdd:bfdd/bfd/sessions/single-hop
526 int bfdd_bfd_sessions_single_hop_create(struct nb_cb_create_args
*args
)
528 return bfd_session_create(args
, false);
531 int bfdd_bfd_sessions_single_hop_destroy(struct nb_cb_destroy_args
*args
)
533 return bfd_session_destroy(args
->event
, args
->dnode
, false);
537 * XPath: /frr-bfdd:bfdd/bfd/sessions/single-hop/source-addr
539 int bfdd_bfd_sessions_single_hop_source_addr_modify(
540 struct nb_cb_modify_args
*args
)
545 int bfdd_bfd_sessions_single_hop_source_addr_destroy(
546 struct nb_cb_destroy_args
*args
)
552 * XPath: /frr-bfdd:bfdd/bfd/sessions/single-hop/profile
554 int bfdd_bfd_sessions_single_hop_profile_modify(struct nb_cb_modify_args
*args
)
556 struct bfd_session
*bs
;
558 if (args
->event
!= NB_EV_APPLY
)
561 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
562 bfd_profile_apply(yang_dnode_get_string(args
->dnode
, NULL
), bs
);
567 int bfdd_bfd_sessions_single_hop_profile_destroy(
568 struct nb_cb_destroy_args
*args
)
570 struct bfd_session
*bs
;
572 if (args
->event
!= NB_EV_APPLY
)
575 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
576 bfd_profile_remove(bs
);
582 * XPath: /frr-bfdd:bfdd/bfd/sessions/single-hop/detection-multiplier
584 int bfdd_bfd_sessions_single_hop_detection_multiplier_modify(
585 struct nb_cb_modify_args
*args
)
587 uint8_t detection_multiplier
= yang_dnode_get_uint8(args
->dnode
, NULL
);
588 struct bfd_session
*bs
;
590 switch (args
->event
) {
599 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
600 bs
->peer_profile
.detection_multiplier
= detection_multiplier
;
601 bfd_session_apply(bs
);
613 * XPath: /frr-bfdd:bfdd/bfd/sessions/single-hop/desired-transmission-interval
615 int bfdd_bfd_sessions_single_hop_desired_transmission_interval_modify(
616 struct nb_cb_modify_args
*args
)
618 uint32_t tx_interval
= yang_dnode_get_uint32(args
->dnode
, NULL
);
619 struct bfd_session
*bs
;
621 switch (args
->event
) {
623 if (tx_interval
< 10000 || tx_interval
> 60000000)
624 return NB_ERR_VALIDATION
;
632 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
633 if (tx_interval
== bs
->timers
.desired_min_tx
)
636 bs
->peer_profile
.min_tx
= tx_interval
;
637 bfd_session_apply(bs
);
649 * XPath: /frr-bfdd:bfdd/bfd/sessions/single-hop/required-receive-interval
651 int bfdd_bfd_sessions_single_hop_required_receive_interval_modify(
652 struct nb_cb_modify_args
*args
)
654 uint32_t rx_interval
= yang_dnode_get_uint32(args
->dnode
, NULL
);
655 struct bfd_session
*bs
;
657 switch (args
->event
) {
659 if (rx_interval
< 10000 || rx_interval
> 60000000)
660 return NB_ERR_VALIDATION
;
668 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
669 if (rx_interval
== bs
->timers
.required_min_rx
)
672 bs
->peer_profile
.min_rx
= rx_interval
;
673 bfd_session_apply(bs
);
685 * XPath: /frr-bfdd:bfdd/bfd/sessions/single-hop/administrative-down
687 int bfdd_bfd_sessions_single_hop_administrative_down_modify(
688 struct nb_cb_modify_args
*args
)
690 bool shutdown
= yang_dnode_get_bool(args
->dnode
, NULL
);
691 struct bfd_session
*bs
;
693 switch (args
->event
) {
705 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
706 bs
->peer_profile
.admin_shutdown
= shutdown
;
707 bfd_session_apply(bs
);
713 * XPath: /frr-bfdd:bfdd/bfd/sessions/single-hop/passive-mode
715 int bfdd_bfd_sessions_single_hop_passive_mode_modify(
716 struct nb_cb_modify_args
*args
)
718 struct bfd_session
*bs
;
721 switch (args
->event
) {
733 passive
= yang_dnode_get_bool(args
->dnode
, NULL
);
735 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
736 bs
->peer_profile
.passive
= passive
;
737 bfd_session_apply(bs
);
743 * XPath: /frr-bfdd:bfdd/bfd/sessions/single-hop/echo-mode
745 int bfdd_bfd_sessions_single_hop_echo_mode_modify(
746 struct nb_cb_modify_args
*args
)
748 bool echo
= yang_dnode_get_bool(args
->dnode
, NULL
);
749 struct bfd_session
*bs
;
751 switch (args
->event
) {
763 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
764 bs
->peer_profile
.echo_mode
= echo
;
765 bfd_session_apply(bs
);
772 * /frr-bfdd:bfdd/bfd/sessions/single-hop/desired-echo-transmission-interval
774 int bfdd_bfd_sessions_single_hop_desired_echo_transmission_interval_modify(
775 struct nb_cb_modify_args
*args
)
777 uint32_t echo_interval
= yang_dnode_get_uint32(args
->dnode
, NULL
);
778 struct bfd_session
*bs
;
780 switch (args
->event
) {
782 if (echo_interval
< 10000 || echo_interval
> 60000000)
783 return NB_ERR_VALIDATION
;
791 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
792 if (echo_interval
== bs
->timers
.required_min_echo
)
795 bs
->peer_profile
.min_echo_rx
= echo_interval
;
796 bfd_session_apply(bs
);
808 * XPath: /frr-bfdd:bfdd/bfd/sessions/multi-hop
810 int bfdd_bfd_sessions_multi_hop_create(struct nb_cb_create_args
*args
)
812 return bfd_session_create(args
, true);
815 int bfdd_bfd_sessions_multi_hop_destroy(struct nb_cb_destroy_args
*args
)
817 return bfd_session_destroy(args
->event
, args
->dnode
, true);
821 * XPath: /frr-bfdd:bfdd/bfd/sessions/multi-hop/minimum-ttl
823 int bfdd_bfd_sessions_multi_hop_minimum_ttl_modify(
824 struct nb_cb_modify_args
*args
)
826 struct bfd_session
*bs
;
828 switch (args
->event
) {
840 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
841 bs
->peer_profile
.minimum_ttl
= yang_dnode_get_uint8(args
->dnode
, NULL
);
842 bfd_session_apply(bs
);
847 int bfdd_bfd_sessions_multi_hop_minimum_ttl_destroy(
848 struct nb_cb_destroy_args
*args
)
850 struct bfd_session
*bs
;
852 switch (args
->event
) {
864 bs
= nb_running_get_entry(args
->dnode
, NULL
, true);
865 bs
->peer_profile
.minimum_ttl
= BFD_DEF_MHOP_TTL
;
866 bfd_session_apply(bs
);