4 * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
5 * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
6 * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
7 * Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
9 * Permission to use, copy, modify, and distribute this software for any
10 * purpose with or without fee is hereby granted, provided that the above
11 * copyright notice and this permission notice appear in all copies.
13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
29 static __inline
int nbr_id_compare(const struct nbr
*, const struct nbr
*);
30 static __inline
int nbr_addr_compare(const struct nbr
*,
32 static __inline
int nbr_pid_compare(const struct nbr
*,
34 static void nbr_update_peerid(struct nbr
*);
35 static int nbr_ktimer(struct thread
*);
36 static void nbr_start_ktimer(struct nbr
*);
37 static int nbr_ktimeout(struct thread
*);
38 static void nbr_start_ktimeout(struct nbr
*);
39 static int nbr_itimeout(struct thread
*);
40 static void nbr_start_itimeout(struct nbr
*);
41 static int nbr_idtimer(struct thread
*);
42 static int nbr_act_session_operational(struct nbr
*);
43 static void nbr_send_labelmappings(struct nbr
*);
44 static __inline
int nbr_params_compare(const struct nbr_params
*,
45 const struct nbr_params
*);
47 RB_GENERATE(nbr_id_head
, nbr
, id_tree
, nbr_id_compare
)
48 RB_GENERATE(nbr_addr_head
, nbr
, addr_tree
, nbr_addr_compare
)
49 RB_GENERATE(nbr_pid_head
, nbr
, pid_tree
, nbr_pid_compare
)
50 RB_GENERATE(nbrp_head
, nbr_params
, entry
, nbr_params_compare
)
55 enum nbr_action action
;
58 /* current state event that happened action to take resulting state */
60 {NBR_STA_PRESENT
, NBR_EVT_MATCH_ADJ
, NBR_ACT_NOTHING
, NBR_STA_INITIAL
},
61 {NBR_STA_INITIAL
, NBR_EVT_INIT_RCVD
, NBR_ACT_PASSIVE_INIT
, NBR_STA_OPENREC
},
62 {NBR_STA_OPENREC
, NBR_EVT_KEEPALIVE_RCVD
, NBR_ACT_SESSION_EST
, NBR_STA_OPER
},
64 {NBR_STA_PRESENT
, NBR_EVT_CONNECT_UP
, NBR_ACT_CONNECT_SETUP
, NBR_STA_INITIAL
},
65 {NBR_STA_INITIAL
, NBR_EVT_INIT_SENT
, NBR_ACT_NOTHING
, NBR_STA_OPENSENT
},
66 {NBR_STA_OPENSENT
, NBR_EVT_INIT_RCVD
, NBR_ACT_KEEPALIVE_SEND
, NBR_STA_OPENREC
},
67 /* Session Maintenance */
68 {NBR_STA_OPER
, NBR_EVT_PDU_RCVD
, NBR_ACT_RST_KTIMEOUT
, 0},
69 {NBR_STA_SESSION
, NBR_EVT_PDU_RCVD
, NBR_ACT_NOTHING
, 0},
70 {NBR_STA_OPER
, NBR_EVT_PDU_SENT
, NBR_ACT_RST_KTIMER
, 0},
71 {NBR_STA_SESSION
, NBR_EVT_PDU_SENT
, NBR_ACT_NOTHING
, 0},
73 {NBR_STA_PRESENT
, NBR_EVT_CLOSE_SESSION
, NBR_ACT_NOTHING
, 0},
74 {NBR_STA_SESSION
, NBR_EVT_CLOSE_SESSION
, NBR_ACT_CLOSE_SESSION
, NBR_STA_PRESENT
},
75 {-1, NBR_EVT_NOTHING
, NBR_ACT_NOTHING
, 0},
78 const char * const nbr_event_names
[] = {
90 const char * const nbr_action_names
[] = {
92 "RESET KEEPALIVE TIMEOUT",
93 "START NEIGHBOR SESSION",
94 "RESET KEEPALIVE TIMER",
95 "SETUP NEIGHBOR CONNECTION",
96 "SEND INIT AND KEEPALIVE",
101 struct nbr_id_head nbrs_by_id
= RB_INITIALIZER(&nbrs_by_id
);
102 struct nbr_addr_head nbrs_by_addr
= RB_INITIALIZER(&nbrs_by_addr
);
103 struct nbr_pid_head nbrs_by_pid
= RB_INITIALIZER(&nbrs_by_pid
);
106 nbr_id_compare(const struct nbr
*a
, const struct nbr
*b
)
108 return (ntohl(a
->id
.s_addr
) - ntohl(b
->id
.s_addr
));
112 nbr_addr_compare(const struct nbr
*a
, const struct nbr
*b
)
119 return (ldp_addrcmp(a
->af
, &a
->raddr
, &b
->raddr
));
123 nbr_pid_compare(const struct nbr
*a
, const struct nbr
*b
)
125 return (a
->peerid
- b
->peerid
);
129 nbr_fsm(struct nbr
*nbr
, enum nbr_event event
)
136 old_state
= nbr
->state
;
137 for (i
= 0; nbr_fsm_tbl
[i
].state
!= -1; i
++)
138 if ((nbr_fsm_tbl
[i
].state
& old_state
) &&
139 (nbr_fsm_tbl
[i
].event
== event
)) {
140 new_state
= nbr_fsm_tbl
[i
].new_state
;
144 if (nbr_fsm_tbl
[i
].state
== -1) {
145 /* event outside of the defined fsm, ignore it. */
146 log_warnx("%s: lsr-id %s, event %s not expected in "
147 "state %s", __func__
, inet_ntoa(nbr
->id
),
148 nbr_event_names
[event
], nbr_state_name(old_state
));
153 nbr
->state
= new_state
;
155 if (old_state
!= nbr
->state
) {
156 log_debug("%s: event %s resulted in action %s and "
157 "changing state for lsr-id %s from %s to %s",
158 __func__
, nbr_event_names
[event
],
159 nbr_action_names
[nbr_fsm_tbl
[i
].action
],
160 inet_ntoa(nbr
->id
), nbr_state_name(old_state
),
161 nbr_state_name(nbr
->state
));
163 if (nbr
->state
== NBR_STA_OPER
) {
164 gettimeofday(&now
, NULL
);
165 nbr
->uptime
= now
.tv_sec
;
169 if (nbr
->state
== NBR_STA_OPER
|| nbr
->state
== NBR_STA_PRESENT
)
170 nbr_stop_itimeout(nbr
);
172 nbr_start_itimeout(nbr
);
174 switch (nbr_fsm_tbl
[i
].action
) {
175 case NBR_ACT_RST_KTIMEOUT
:
176 nbr_start_ktimeout(nbr
);
178 case NBR_ACT_RST_KTIMER
:
179 nbr_start_ktimer(nbr
);
181 case NBR_ACT_SESSION_EST
:
182 nbr_act_session_operational(nbr
);
183 nbr_start_ktimer(nbr
);
184 nbr_start_ktimeout(nbr
);
186 send_address_all(nbr
, AF_INET
);
188 send_address_all(nbr
, AF_INET6
);
189 nbr_send_labelmappings(nbr
);
191 case NBR_ACT_CONNECT_SETUP
:
192 nbr
->tcp
= tcp_new(nbr
->fd
, nbr
);
194 /* trigger next state */
196 nbr_fsm(nbr
, NBR_EVT_INIT_SENT
);
198 case NBR_ACT_PASSIVE_INIT
:
202 case NBR_ACT_KEEPALIVE_SEND
:
203 nbr_start_ktimeout(nbr
);
206 case NBR_ACT_CLOSE_SESSION
:
207 ldpe_imsg_compose_lde(IMSG_NEIGHBOR_DOWN
, nbr
->peerid
, 0,
211 case NBR_ACT_NOTHING
:
220 nbr_new(struct in_addr id
, int af
, int ds_tlv
, union ldpd_addr
*addr
,
224 struct nbr_params
*nbrp
;
226 struct pending_conn
*pconn
;
228 log_debug("%s: lsr-id %s transport-address %s", __func__
,
229 inet_ntoa(id
), log_addr(af
, addr
));
231 if ((nbr
= calloc(1, sizeof(*nbr
))) == NULL
)
234 RB_INIT(nbr_adj_head
, &nbr
->adj_tree
);
235 nbr
->state
= NBR_STA_PRESENT
;
238 nbr
->ds_tlv
= ds_tlv
;
239 if (af
== AF_INET
|| ds_tlv
)
241 if (af
== AF_INET6
|| ds_tlv
)
244 nbr
->laddr
= (ldp_af_conf_get(leconf
, af
))->trans_addr
;
246 nbr
->raddr_scope
= scope_id
;
247 nbr
->conf_seqnum
= 0;
249 RB_FOREACH(adj
, global_adj_head
, &global
.adj_tree
) {
250 if (adj
->lsr_id
.s_addr
== nbr
->id
.s_addr
) {
252 RB_INSERT(nbr_adj_head
, &nbr
->adj_tree
, adj
);
256 if (RB_INSERT(nbr_id_head
, &nbrs_by_id
, nbr
) != NULL
)
257 fatalx("nbr_new: RB_INSERT(nbrs_by_id) failed");
258 if (RB_INSERT(nbr_addr_head
, &nbrs_by_addr
, nbr
) != NULL
)
259 fatalx("nbr_new: RB_INSERT(nbrs_by_addr) failed");
261 TAILQ_INIT(&nbr
->mapping_list
);
262 TAILQ_INIT(&nbr
->withdraw_list
);
263 TAILQ_INIT(&nbr
->request_list
);
264 TAILQ_INIT(&nbr
->release_list
);
265 TAILQ_INIT(&nbr
->abortreq_list
);
267 nbrp
= nbr_params_find(leconf
, nbr
->id
);
269 nbr
->auth
.method
= nbrp
->auth
.method
;
271 if (pfkey_establish(nbr
, nbrp
) == -1)
272 fatalx("pfkey setup failed");
275 (ldp_af_global_get(&global
, nbr
->af
))->ldp_session_socket
,
276 nbr
->af
, &nbr
->raddr
, nbrp
->auth
.md5key
);
280 pconn
= pending_conn_find(nbr
->af
, &nbr
->raddr
);
282 session_accept_nbr(nbr
, pconn
->fd
);
283 pending_conn_del(pconn
);
290 nbr_del(struct nbr
*nbr
)
294 log_debug("%s: lsr-id %s", __func__
, inet_ntoa(nbr
->id
));
296 nbr_fsm(nbr
, NBR_EVT_CLOSE_SESSION
);
301 (ldp_af_global_get(&global
, nbr
->af
))->ldp_session_socket
,
302 nbr
->af
, &nbr
->raddr
, NULL
);
304 nbr
->auth
.method
= AUTH_NONE
;
306 if (nbr_pending_connect(nbr
))
307 THREAD_WRITE_OFF(nbr
->ev_connect
);
308 nbr_stop_ktimer(nbr
);
309 nbr_stop_ktimeout(nbr
);
310 nbr_stop_itimeout(nbr
);
311 nbr_stop_idtimer(nbr
);
313 mapping_list_clr(&nbr
->mapping_list
);
314 mapping_list_clr(&nbr
->withdraw_list
);
315 mapping_list_clr(&nbr
->request_list
);
316 mapping_list_clr(&nbr
->release_list
);
317 mapping_list_clr(&nbr
->abortreq_list
);
319 while ((adj
= RB_ROOT(nbr_adj_head
, &nbr
->adj_tree
)) != NULL
) {
321 RB_REMOVE(nbr_adj_head
, &nbr
->adj_tree
, adj
);
325 RB_REMOVE(nbr_pid_head
, &nbrs_by_pid
, nbr
);
326 RB_REMOVE(nbr_id_head
, &nbrs_by_id
, nbr
);
327 RB_REMOVE(nbr_addr_head
, &nbrs_by_addr
, nbr
);
333 nbr_update_peerid(struct nbr
*nbr
)
335 static uint32_t peercnt
= 1;
338 RB_REMOVE(nbr_pid_head
, &nbrs_by_pid
, nbr
);
340 /* get next unused peerid */
341 while (nbr_find_peerid(++peercnt
))
343 nbr
->peerid
= peercnt
;
345 if (RB_INSERT(nbr_pid_head
, &nbrs_by_pid
, nbr
) != NULL
)
346 fatalx("nbr_update_peerid: RB_INSERT(nbrs_by_pid) failed");
350 nbr_find_ldpid(uint32_t lsr_id
)
353 n
.id
.s_addr
= lsr_id
;
354 return (RB_FIND(nbr_id_head
, &nbrs_by_id
, &n
));
358 nbr_find_addr(int af
, union ldpd_addr
*addr
)
363 return (RB_FIND(nbr_addr_head
, &nbrs_by_addr
, &n
));
367 nbr_find_peerid(uint32_t peerid
)
371 return (RB_FIND(nbr_pid_head
, &nbrs_by_pid
, &n
));
375 nbr_adj_count(struct nbr
*nbr
, int af
)
380 RB_FOREACH(adj
, nbr_adj_head
, &nbr
->adj_tree
)
381 if (adj_get_af(adj
) == af
)
388 nbr_session_active_role(struct nbr
*nbr
)
390 if (ldp_addrcmp(nbr
->af
, &nbr
->laddr
, &nbr
->raddr
) > 0)
398 /* Keepalive timer: timer to send keepalive message to neighbors */
401 nbr_ktimer(struct thread
*thread
)
403 struct nbr
*nbr
= THREAD_ARG(thread
);
405 nbr
->keepalive_timer
= NULL
;
407 nbr_start_ktimer(nbr
);
413 nbr_start_ktimer(struct nbr
*nbr
)
417 /* send three keepalives per period */
418 secs
= nbr
->keepalive
/ KEEPALIVE_PER_PERIOD
;
419 THREAD_TIMER_OFF(nbr
->keepalive_timer
);
420 nbr
->keepalive_timer
= NULL
;
421 thread_add_timer(master
, nbr_ktimer
, nbr
, secs
, &nbr
->keepalive_timer
);
425 nbr_stop_ktimer(struct nbr
*nbr
)
427 THREAD_TIMER_OFF(nbr
->keepalive_timer
);
430 /* Keepalive timeout: if the nbr hasn't sent keepalive */
433 nbr_ktimeout(struct thread
*thread
)
435 struct nbr
*nbr
= THREAD_ARG(thread
);
437 nbr
->keepalive_timeout
= NULL
;
439 log_debug("%s: lsr-id %s", __func__
, inet_ntoa(nbr
->id
));
441 session_shutdown(nbr
, S_KEEPALIVE_TMR
, 0, 0);
447 nbr_start_ktimeout(struct nbr
*nbr
)
449 THREAD_TIMER_OFF(nbr
->keepalive_timeout
);
450 nbr
->keepalive_timeout
= NULL
;
451 thread_add_timer(master
, nbr_ktimeout
, nbr
, nbr
->keepalive
,
452 &nbr
->keepalive_timeout
);
456 nbr_stop_ktimeout(struct nbr
*nbr
)
458 THREAD_TIMER_OFF(nbr
->keepalive_timeout
);
461 /* Session initialization timeout: if nbr got stuck in the initialization FSM */
464 nbr_itimeout(struct thread
*thread
)
466 struct nbr
*nbr
= THREAD_ARG(thread
);
468 log_debug("%s: lsr-id %s", __func__
, inet_ntoa(nbr
->id
));
470 nbr_fsm(nbr
, NBR_EVT_CLOSE_SESSION
);
476 nbr_start_itimeout(struct nbr
*nbr
)
480 secs
= INIT_FSM_TIMEOUT
;
481 THREAD_TIMER_OFF(nbr
->init_timeout
);
482 nbr
->init_timeout
= NULL
;
483 thread_add_timer(master
, nbr_itimeout
, nbr
, secs
, &nbr
->init_timeout
);
487 nbr_stop_itimeout(struct nbr
*nbr
)
489 THREAD_TIMER_OFF(nbr
->init_timeout
);
492 /* Init delay timer: timer to retry to iniziatize session */
495 nbr_idtimer(struct thread
*thread
)
497 struct nbr
*nbr
= THREAD_ARG(thread
);
499 nbr
->initdelay_timer
= NULL
;
501 log_debug("%s: lsr-id %s", __func__
, inet_ntoa(nbr
->id
));
503 nbr_establish_connection(nbr
);
509 nbr_start_idtimer(struct nbr
*nbr
)
513 secs
= INIT_DELAY_TMR
;
514 switch(nbr
->idtimer_cnt
) {
516 /* do not further increase the counter */
517 secs
= MAX_DELAY_TMR
;
530 THREAD_TIMER_OFF(nbr
->initdelay_timer
);
531 nbr
->initdelay_timer
= NULL
;
532 thread_add_timer(master
, nbr_idtimer
, nbr
, secs
,
533 &nbr
->initdelay_timer
);
537 nbr_stop_idtimer(struct nbr
*nbr
)
539 THREAD_TIMER_OFF(nbr
->initdelay_timer
);
543 nbr_pending_idtimer(struct nbr
*nbr
)
545 return (nbr
->initdelay_timer
!= NULL
);
549 nbr_pending_connect(struct nbr
*nbr
)
551 return (nbr
->ev_connect
!= NULL
);
555 nbr_connect_cb(struct thread
*thread
)
557 struct nbr
*nbr
= THREAD_ARG(thread
);
561 nbr
->ev_connect
= NULL
;
564 if (getsockopt(nbr
->fd
, SOL_SOCKET
, SO_ERROR
, &error
, &len
) < 0) {
565 log_warn("%s: getsockopt SOL_SOCKET SO_ERROR", __func__
);
572 log_debug("%s: error while connecting to %s: %s", __func__
,
573 log_addr(nbr
->af
, &nbr
->raddr
), strerror(errno
));
577 nbr_fsm(nbr
, NBR_EVT_CONNECT_UP
);
583 nbr_establish_connection(struct nbr
*nbr
)
585 struct sockaddr_storage local_sa
;
586 struct sockaddr_storage remote_sa
;
588 struct nbr_params
*nbrp
;
593 nbr
->fd
= socket(nbr
->af
, SOCK_STREAM
, 0);
595 log_warn("%s: error while creating socket", __func__
);
598 sock_set_nonblock(nbr
->fd
);
600 nbrp
= nbr_params_find(leconf
, nbr
->id
);
601 if (nbrp
&& nbrp
->auth
.method
== AUTH_MD5SIG
) {
603 if (sysdep
.no_pfkey
|| sysdep
.no_md5sig
) {
604 log_warnx("md5sig configured but not available");
608 if (setsockopt(nbr
->fd
, IPPROTO_TCP
, TCP_MD5SIG
,
609 &opt
, sizeof(opt
)) == -1) {
610 log_warn("setsockopt md5sig");
615 sock_set_md5sig(nbr
->fd
, nbr
->af
, &nbr
->raddr
,
620 memcpy(&local_sa
, addr2sa(nbr
->af
, &nbr
->laddr
, 0), sizeof(local_sa
));
621 memcpy(&remote_sa
, addr2sa(nbr
->af
, &nbr
->raddr
, LDP_PORT
),
623 if (nbr
->af
== AF_INET6
&& nbr
->raddr_scope
)
624 addscope((struct sockaddr_in6
*)&remote_sa
, nbr
->raddr_scope
);
626 if (bind(nbr
->fd
, (struct sockaddr
*)&local_sa
,
627 sockaddr_len((struct sockaddr
*)&local_sa
)) == -1) {
628 log_warn("%s: error while binding socket to %s", __func__
,
629 log_sockaddr((struct sockaddr
*)&local_sa
));
634 if (nbr_gtsm_check(nbr
->fd
, nbr
, nbrp
)) {
640 * Send an extra hello to guarantee that the remote peer has formed
641 * an adjacency as well.
643 RB_FOREACH(adj
, nbr_adj_head
, &nbr
->adj_tree
)
644 send_hello(adj
->source
.type
, adj
->source
.link
.ia
,
647 if (connect(nbr
->fd
, (struct sockaddr
*)&remote_sa
,
648 sockaddr_len((struct sockaddr
*)&remote_sa
)) == -1) {
649 if (errno
== EINPROGRESS
) {
650 thread_add_write(master
, nbr_connect_cb
, nbr
, nbr
->fd
,
654 log_warn("%s: error while connecting to %s", __func__
,
655 log_sockaddr((struct sockaddr
*)&remote_sa
));
660 /* connection completed immediately */
661 nbr_fsm(nbr
, NBR_EVT_CONNECT_UP
);
667 nbr_gtsm_enabled(struct nbr
*nbr
, struct nbr_params
*nbrp
)
670 * RFC 6720 - Section 3:
671 * "This document allows for the implementation to provide an option to
672 * statically (e.g., via configuration) and/or dynamically override the
673 * default behavior and enable/disable GTSM on a per-peer basis".
675 if (nbrp
&& (nbrp
->flags
& F_NBRP_GTSM
))
676 return (nbrp
->gtsm_enabled
);
678 if ((ldp_af_conf_get(leconf
, nbr
->af
))->flags
& F_LDPD_AF_NO_GTSM
)
681 /* By default, GTSM support has to be negotiated for LDPv4 */
682 if (nbr
->af
== AF_INET
&& !(nbr
->flags
& F_NBR_GTSM_NEGOTIATED
))
689 nbr_gtsm_setup(int fd
, int af
, struct nbr_params
*nbrp
)
693 if (nbrp
&& (nbrp
->flags
& F_NBRP_GTSM_HOPS
))
694 ttl
= 256 - nbrp
->gtsm_hops
;
698 if (sock_set_ipv4_minttl(fd
, ttl
) == -1)
701 if (sock_set_ipv4_ucast_ttl(fd
, ttl
) == -1)
705 /* ignore any possible error */
706 sock_set_ipv6_minhopcount(fd
, ttl
);
708 if (sock_set_ipv6_ucast_hops(fd
, ttl
) == -1)
712 fatalx("nbr_gtsm_setup: unknown af");
719 nbr_gtsm_check(int fd
, struct nbr
*nbr
, struct nbr_params
*nbrp
)
721 if (!nbr_gtsm_enabled(nbr
, nbrp
)) {
724 sock_set_ipv4_ucast_ttl(fd
, -1);
728 * Send packets with a Hop Limit of 255 even when GSTM
729 * is disabled to guarantee interoperability.
731 sock_set_ipv6_ucast_hops(fd
, 255);
734 fatalx("nbr_gtsm_check: unknown af");
740 if (nbr_gtsm_setup(fd
, nbr
->af
, nbrp
) == -1) {
741 log_warnx("%s: error enabling GTSM for lsr-id %s", __func__
,
750 nbr_act_session_operational(struct nbr
*nbr
)
752 struct lde_nbr lde_nbr
;
754 nbr
->idtimer_cnt
= 0;
756 /* this is necessary to avoid ipc synchronization issues */
757 nbr_update_peerid(nbr
);
759 memset(&lde_nbr
, 0, sizeof(lde_nbr
));
760 lde_nbr
.id
= nbr
->id
;
761 lde_nbr
.v4_enabled
= nbr
->v4_enabled
;
762 lde_nbr
.v6_enabled
= nbr
->v6_enabled
;
763 lde_nbr
.flags
= nbr
->flags
;
764 return (ldpe_imsg_compose_lde(IMSG_NEIGHBOR_UP
, nbr
->peerid
, 0,
765 &lde_nbr
, sizeof(lde_nbr
)));
769 nbr_send_labelmappings(struct nbr
*nbr
)
771 ldpe_imsg_compose_lde(IMSG_LABEL_MAPPING_FULL
, nbr
->peerid
, 0,
776 nbr_params_compare(const struct nbr_params
*a
, const struct nbr_params
*b
)
778 return (ntohl(a
->lsr_id
.s_addr
) - ntohl(b
->lsr_id
.s_addr
));
782 nbr_params_new(struct in_addr lsr_id
)
784 struct nbr_params
*nbrp
;
786 if ((nbrp
= calloc(1, sizeof(*nbrp
))) == NULL
)
789 nbrp
->lsr_id
= lsr_id
;
790 nbrp
->auth
.method
= AUTH_NONE
;
796 nbr_params_find(struct ldpd_conf
*xconf
, struct in_addr lsr_id
)
798 struct nbr_params nbrp
;
799 nbrp
.lsr_id
= lsr_id
;
800 return (RB_FIND(nbrp_head
, &xconf
->nbrp_tree
, &nbrp
));
804 nbr_get_keepalive(int af
, struct in_addr lsr_id
)
806 struct nbr_params
*nbrp
;
808 nbrp
= nbr_params_find(leconf
, lsr_id
);
809 if (nbrp
&& (nbrp
->flags
& F_NBRP_KEEPALIVE
))
810 return (nbrp
->keepalive
);
812 return ((ldp_af_conf_get(leconf
, af
))->keepalive
);
816 nbr_to_ctl(struct nbr
*nbr
)
818 static struct ctl_nbr nctl
;
823 nctl
.laddr
= nbr
->laddr
;
824 nctl
.lport
= nbr
->tcp
->lport
;
825 nctl
.raddr
= nbr
->raddr
;
826 nctl
.rport
= nbr
->tcp
->rport
;
827 nctl
.auth_method
= nbr
->auth
.method
;
828 nctl
.holdtime
= nbr
->keepalive
;
829 nctl
.nbr_state
= nbr
->state
;
830 nctl
.stats
= nbr
->stats
;
831 nctl
.flags
= nbr
->flags
;
833 gettimeofday(&now
, NULL
);
834 if (nbr
->state
== NBR_STA_OPER
) {
835 nctl
.uptime
= now
.tv_sec
- nbr
->uptime
;
843 nbr_clear_ctl(struct ctl_nbr
*nctl
)
847 RB_FOREACH(nbr
, nbr_addr_head
, &nbrs_by_addr
) {
848 if (ldp_addrisset(nctl
->af
, &nctl
->raddr
) &&
849 ldp_addrcmp(nctl
->af
, &nctl
->raddr
, &nbr
->raddr
))
852 log_debug("%s: neighbor %s manually cleared", __func__
,
853 log_addr(nbr
->af
, &nbr
->raddr
));
854 session_shutdown(nbr
, S_SHUTDOWN
, 0, 0);