[mirror_frr.git] / ldpd / adjacency.c

/*	$OpenBSD$ */

/*
 * Copyright (c) 2013, 2015 Renato Westphal <renato@openbsd.org>
 * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
 * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
 * Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <zebra.h>

#include "ldpd.h"
#include "ldpe.h"
#include "log.h"

static __inline int adj_compare(struct adj *, struct adj *);
static int	 adj_itimer(struct thread *);
static __inline int tnbr_compare(struct tnbr *, struct tnbr *);
static void	 tnbr_del(struct ldpd_conf *, struct tnbr *);
static int	 tnbr_hello_timer(struct thread *);
static void	 tnbr_start_hello_timer(struct tnbr *);
static void	 tnbr_stop_hello_timer(struct tnbr *);

RB_GENERATE(global_adj_head, adj, global_entry, adj_compare)
RB_GENERATE(nbr_adj_head, adj, nbr_entry, adj_compare)
RB_GENERATE(ia_adj_head, adj, ia_entry, adj_compare)
RB_GENERATE(tnbr_head, tnbr, entry, tnbr_compare)

static __inline int
adj_compare(struct adj *a, struct adj *b)
{
	if (adj_get_af(a) < adj_get_af(b))
		return (-1);
	if (adj_get_af(a) > adj_get_af(b))
		return (1);

	if (ntohl(a->lsr_id.s_addr) < ntohl(b->lsr_id.s_addr))
		return (-1);
	if (ntohl(a->lsr_id.s_addr) > ntohl(b->lsr_id.s_addr))
		return (1);

	if (a->source.type < b->source.type)
		return (-1);
	if (a->source.type > b->source.type)
		return (1);

	switch (a->source.type) {
	case HELLO_LINK:
		if (strcmp(a->source.link.ia->iface->name,
		    b->source.link.ia->iface->name) < 0)
			return (-1);
		if (strcmp(a->source.link.ia->iface->name,
		    b->source.link.ia->iface->name) > 0)
			return (1);
		return (ldp_addrcmp(a->source.link.ia->af,
		    &a->source.link.src_addr, &b->source.link.src_addr));
	case HELLO_TARGETED:
		return (ldp_addrcmp(a->source.target->af,
		    &a->source.target->addr, &b->source.target->addr));
	default:
		fatalx("adj_compare: unknown hello type");
	}

	return (0);
}

struct adj *
adj_new(struct in_addr lsr_id, struct hello_source *source,
    union ldpd_addr *addr)
{
	struct adj	*adj;

	log_debug("%s: lsr-id %s, %s", __func__, inet_ntoa(lsr_id),
	    log_hello_src(source));

	if ((adj = calloc(1, sizeof(*adj))) == NULL)
		fatal(__func__);

	adj->lsr_id = lsr_id;
	adj->nbr = NULL;
	adj->source = *source;
	adj->trans_addr = *addr;

	RB_INSERT(global_adj_head, &global.adj_tree, adj);

	switch (source->type) {
	case HELLO_LINK:
		RB_INSERT(ia_adj_head, &source->link.ia->adj_tree, adj);
		break;
	case HELLO_TARGETED:
		source->target->adj = adj;
		break;
	}

	return (adj);
}

static void
adj_del_single(struct adj *adj)
{
	log_debug("%s: lsr-id %s, %s (%s)", __func__, inet_ntoa(adj->lsr_id),
	    log_hello_src(&adj->source), af_name(adj_get_af(adj)));

	adj_stop_itimer(adj);

	RB_REMOVE(global_adj_head, &global.adj_tree, adj);
	if (adj->nbr)
		RB_REMOVE(nbr_adj_head, &adj->nbr->adj_tree, adj);
	switch (adj->source.type) {
	case HELLO_LINK:
		RB_REMOVE(ia_adj_head, &adj->source.link.ia->adj_tree, adj);
		break;
	case HELLO_TARGETED:
		adj->source.target->adj = NULL;
		break;
	}

	free(adj);
}

void
adj_del(struct adj *adj, uint32_t notif_status)
{
	struct nbr	*nbr = adj->nbr;
	struct adj	*atmp;

	adj_del_single(adj);

	/*
	 * If the neighbor still exists but none of its remaining
	 * adjacencies (if any) are from the preferred address-family,
	 * then delete it.
	 */
	if (nbr && nbr_adj_count(nbr, nbr->af) == 0) {
		RB_FOREACH_SAFE(adj, nbr_adj_head, &nbr->adj_tree, atmp)
			adj_del_single(adj);
		session_shutdown(nbr, notif_status, 0, 0);
		nbr_del(nbr);
	}
}

struct adj *
adj_find(struct in_addr lsr_id, struct hello_source *source)
{
	struct adj	 adj;
	adj.lsr_id = lsr_id;
	adj.source = *source;
	return (RB_FIND(global_adj_head, &global.adj_tree, &adj));
}

int
adj_get_af(struct adj *adj)
{
	switch (adj->source.type) {
	case HELLO_LINK:
		return (adj->source.link.ia->af);
	case HELLO_TARGETED:
		return (adj->source.target->af);
	default:
		fatalx("adj_get_af: unknown hello type");
	}
}

/* adjacency timers */

/* ARGSUSED */
static int
adj_itimer(struct thread *thread)
{
	struct adj *adj = THREAD_ARG(thread);

	adj->inactivity_timer = NULL;

	log_debug("%s: lsr-id %s", __func__, inet_ntoa(adj->lsr_id));

	if (adj->source.type == HELLO_TARGETED) {
		if (!(adj->source.target->flags & F_TNBR_CONFIGURED) &&
		    adj->source.target->pw_count == 0) {
			/* remove dynamic targeted neighbor */
			tnbr_del(leconf, adj->source.target);
			return (0);
		}
		adj->source.target->adj = NULL;
	}

	adj_del(adj, S_HOLDTIME_EXP);

	return (0);
}

void
adj_start_itimer(struct adj *adj)
{
	THREAD_TIMER_OFF(adj->inactivity_timer);
	adj->inactivity_timer = thread_add_timer(master, adj_itimer, adj,
	    adj->holdtime);
}

void
adj_stop_itimer(struct adj *adj)
{
	THREAD_TIMER_OFF(adj->inactivity_timer);
}

/* targeted neighbors */

static __inline int
tnbr_compare(struct tnbr *a, struct tnbr *b)
{
	if (a->af < b->af)
		return (-1);
	if (a->af > b->af)
		return (1);

	return (ldp_addrcmp(a->af, &a->addr, &b->addr));
}

struct tnbr *
tnbr_new(int af, union ldpd_addr *addr)
{
	struct tnbr		*tnbr;

	if ((tnbr = calloc(1, sizeof(*tnbr))) == NULL)
		fatal(__func__);

	tnbr->af = af;
	tnbr->addr = *addr;
	tnbr->state = TNBR_STA_DOWN;

	return (tnbr);
}

static void
tnbr_del(struct ldpd_conf *xconf, struct tnbr *tnbr)
{
	tnbr_stop_hello_timer(tnbr);
	if (tnbr->adj)
		adj_del(tnbr->adj, S_SHUTDOWN);
	RB_REMOVE(tnbr_head, &xconf->tnbr_tree, tnbr);
	free(tnbr);
}

struct tnbr *
tnbr_find(struct ldpd_conf *xconf, int af, union ldpd_addr *addr)
{
	struct tnbr	 tnbr;
	tnbr.af = af;
	tnbr.addr = *addr;
	return (RB_FIND(tnbr_head, &xconf->tnbr_tree, &tnbr));
}

struct tnbr *
tnbr_check(struct ldpd_conf *xconf, struct tnbr *tnbr)
{
	if (!(tnbr->flags & (F_TNBR_CONFIGURED|F_TNBR_DYNAMIC)) &&
	    tnbr->pw_count == 0) {
		tnbr_del(xconf, tnbr);
		return (NULL);
	}

	return (tnbr);
}

void
tnbr_update(struct tnbr *tnbr)
{
	int			 socket_ok, rtr_id_ok;

	if ((ldp_af_global_get(&global, tnbr->af))->ldp_edisc_socket != -1)
		socket_ok = 1;
	else
		socket_ok = 0;

	if (ldp_rtr_id_get(leconf) != INADDR_ANY)
		rtr_id_ok = 1;
	else
		rtr_id_ok = 0;

	if (tnbr->state == TNBR_STA_DOWN) {
		if (!socket_ok || !rtr_id_ok)
			return;

		tnbr->state = TNBR_STA_ACTIVE;
		send_hello(HELLO_TARGETED, NULL, tnbr);

		tnbr_start_hello_timer(tnbr);
	} else if (tnbr->state == TNBR_STA_ACTIVE) {
		if (socket_ok && rtr_id_ok)
			return;

		tnbr->state = TNBR_STA_DOWN;
		tnbr_stop_hello_timer(tnbr);
	}
}

void
tnbr_update_all(int af)
{
	struct tnbr		*tnbr;

	/* update targeted neighbors */
	RB_FOREACH(tnbr, tnbr_head, &leconf->tnbr_tree)
		if (tnbr->af == af || af == AF_UNSPEC)
			tnbr_update(tnbr);
}

uint16_t
tnbr_get_hello_holdtime(struct tnbr *tnbr)
{
	if ((ldp_af_conf_get(leconf, tnbr->af))->thello_holdtime != 0)
		return ((ldp_af_conf_get(leconf, tnbr->af))->thello_holdtime);

	return (leconf->thello_holdtime);
}

uint16_t
tnbr_get_hello_interval(struct tnbr *tnbr)
{
	if ((ldp_af_conf_get(leconf, tnbr->af))->thello_interval != 0)
		return ((ldp_af_conf_get(leconf, tnbr->af))->thello_interval);

	return (leconf->thello_interval);
}

/* target neighbors timers */

/* ARGSUSED */
static int
tnbr_hello_timer(struct thread *thread)
{
	struct tnbr	*tnbr = THREAD_ARG(thread);

	tnbr->hello_timer = NULL;
	send_hello(HELLO_TARGETED, NULL, tnbr);
	tnbr_start_hello_timer(tnbr);

	return (0);
}

static void
tnbr_start_hello_timer(struct tnbr *tnbr)
{
	THREAD_TIMER_OFF(tnbr->hello_timer);
	tnbr->hello_timer = thread_add_timer(master, tnbr_hello_timer, tnbr,
	    tnbr_get_hello_interval(tnbr));
}

static void
tnbr_stop_hello_timer(struct tnbr *tnbr)
{
	THREAD_TIMER_OFF(tnbr->hello_timer);
}

struct ctl_adj *
adj_to_ctl(struct adj *adj)
{
	static struct ctl_adj	 actl;

	actl.af = adj_get_af(adj);
	actl.id = adj->lsr_id;
	actl.type = adj->source.type;
	switch (adj->source.type) {
	case HELLO_LINK:
		memcpy(actl.ifname, adj->source.link.ia->iface->name,
		    sizeof(actl.ifname));
		actl.src_addr = adj->source.link.src_addr;
		break;
	case HELLO_TARGETED:
		actl.src_addr = adj->source.target->addr;
		break;
	}
	actl.holdtime = adj->holdtime;
	actl.holdtime_remaining =
	    thread_timer_remain_second(adj->inactivity_timer);
	actl.trans_addr = adj->trans_addr;
	actl.ds_tlv = adj->ds_tlv;

	return (&actl);
}
Commit	Line	Data
8429abe0 RW	1	/* $OpenBSD$ */
	2
	3	/*
	4	* Copyright (c) 2013, 2015 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>
	8	*
	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.
	12	*
	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.
	20	*/
	21
eac6e3f0	22	#include <zebra.h>
8429abe0 RW	23
	24	#include "ldpd.h"
	25	#include "ldpe.h"
	26	#include "log.h"
	27
057d48bd	28	static __inline int adj_compare(struct adj , struct adj );
eac6e3f0	29	static int adj_itimer(struct thread *);
7989cdba RW	30	static __inline int tnbr_compare(struct tnbr , struct tnbr );
7989cdba RW	31	static void tnbr_del(struct ldpd_conf , struct tnbr );
eac6e3f0	32	static int tnbr_hello_timer(struct thread *);
8429abe0 RW	33	static void tnbr_start_hello_timer(struct tnbr *);
	34	static void tnbr_stop_hello_timer(struct tnbr *);
	35
057d48bd RW	36	RB_GENERATE(global_adj_head, adj, global_entry, adj_compare)
	37	RB_GENERATE(nbr_adj_head, adj, nbr_entry, adj_compare)
	38	RB_GENERATE(ia_adj_head, adj, ia_entry, adj_compare)
7989cdba RW	39	RB_GENERATE(tnbr_head, tnbr, entry, tnbr_compare)
7989cdba RW	40
057d48bd RW	41	static __inline int
	42	adj_compare(struct adj a, struct adj b)
	43	{
f2725627 RW	44	if (adj_get_af(a) < adj_get_af(b))
	45	return (-1);
	46	if (adj_get_af(a) > adj_get_af(b))
	47	return (1);
	48
	49	if (ntohl(a->lsr_id.s_addr) < ntohl(b->lsr_id.s_addr))
	50	return (-1);
	51	if (ntohl(a->lsr_id.s_addr) > ntohl(b->lsr_id.s_addr))
	52	return (1);
	53
057d48bd RW	54	if (a->source.type < b->source.type)
	55	return (-1);
	56	if (a->source.type > b->source.type)
	57	return (1);
	58
	59	switch (a->source.type) {
	60	case HELLO_LINK:
	61	if (strcmp(a->source.link.ia->iface->name,
	62	b->source.link.ia->iface->name) < 0)
	63	return (-1);
	64	if (strcmp(a->source.link.ia->iface->name,
	65	b->source.link.ia->iface->name) > 0)
	66	return (1);
057d48bd RW	67	return (ldp_addrcmp(a->source.link.ia->af,
	68	&a->source.link.src_addr, &b->source.link.src_addr));
	69	case HELLO_TARGETED:
057d48bd RW	70	return (ldp_addrcmp(a->source.target->af,
	71	&a->source.target->addr, &b->source.target->addr));
	72	default:
f2725627	73	fatalx("adj_compare: unknown hello type");
057d48bd RW	74	}
	75
	76	return (0);
	77	}
	78
8429abe0 RW	79	struct adj *
	80	adj_new(struct in_addr lsr_id, struct hello_source *source,
	81	union ldpd_addr *addr)
	82	{
	83	struct adj *adj;
	84
	85	log_debug("%s: lsr-id %s, %s", __func__, inet_ntoa(lsr_id),
	86	log_hello_src(source));
	87
	88	if ((adj = calloc(1, sizeof(*adj))) == NULL)
	89	fatal(__func__);
	90
	91	adj->lsr_id = lsr_id;
	92	adj->nbr = NULL;
	93	adj->source = *source;
	94	adj->trans_addr = *addr;
	95
057d48bd	96	RB_INSERT(global_adj_head, &global.adj_tree, adj);
8429abe0 RW	97
	98	switch (source->type) {
	99	case HELLO_LINK:
057d48bd	100	RB_INSERT(ia_adj_head, &source->link.ia->adj_tree, adj);
8429abe0 RW	101	break;
	102	case HELLO_TARGETED:
	103	source->target->adj = adj;
	104	break;
	105	}
	106
	107	return (adj);
	108	}
	109
	110	static void
	111	adj_del_single(struct adj *adj)
	112	{
	113	log_debug("%s: lsr-id %s, %s (%s)", __func__, inet_ntoa(adj->lsr_id),
	114	log_hello_src(&adj->source), af_name(adj_get_af(adj)));
	115
	116	adj_stop_itimer(adj);
	117
057d48bd	118	RB_REMOVE(global_adj_head, &global.adj_tree, adj);
8429abe0	119	if (adj->nbr)
057d48bd	120	RB_REMOVE(nbr_adj_head, &adj->nbr->adj_tree, adj);
8429abe0 RW	121	switch (adj->source.type) {
8429abe0 RW	122	case HELLO_LINK:
057d48bd	123	RB_REMOVE(ia_adj_head, &adj->source.link.ia->adj_tree, adj);
8429abe0 RW	124	break;
	125	case HELLO_TARGETED:
	126	adj->source.target->adj = NULL;
	127	break;
	128	}
	129
	130	free(adj);
	131	}
	132
	133	void
	134	adj_del(struct adj *adj, uint32_t notif_status)
	135	{
	136	struct nbr *nbr = adj->nbr;
	137	struct adj *atmp;
	138
	139	adj_del_single(adj);
	140
	141	/*
	142	* If the neighbor still exists but none of its remaining
	143	* adjacencies (if any) are from the preferred address-family,
	144	* then delete it.
	145	*/
	146	if (nbr && nbr_adj_count(nbr, nbr->af) == 0) {
057d48bd	147	RB_FOREACH_SAFE(adj, nbr_adj_head, &nbr->adj_tree, atmp)
8429abe0 RW	148	adj_del_single(adj);
	149	session_shutdown(nbr, notif_status, 0, 0);
	150	nbr_del(nbr);
	151	}
	152	}
	153
	154	struct adj *
f2725627	155	adj_find(struct in_addr lsr_id, struct hello_source *source)
8429abe0	156	{
057d48bd	157	struct adj adj;
f2725627	158	adj.lsr_id = lsr_id;
057d48bd RW	159	adj.source = *source;
057d48bd RW	160	return (RB_FIND(global_adj_head, &global.adj_tree, &adj));
8429abe0 RW	161	}
	162
	163	int
	164	adj_get_af(struct adj *adj)
	165	{
	166	switch (adj->source.type) {
	167	case HELLO_LINK:
	168	return (adj->source.link.ia->af);
	169	case HELLO_TARGETED:
	170	return (adj->source.target->af);
	171	default:
	172	fatalx("adj_get_af: unknown hello type");
	173	}
	174	}
	175
	176	/* adjacency timers */
	177
	178	/* ARGSUSED */
eac6e3f0 RW	179	static int
eac6e3f0 RW	180	adj_itimer(struct thread *thread)
8429abe0	181	{
eac6e3f0 RW	182	struct adj *adj = THREAD_ARG(thread);
	183
	184	adj->inactivity_timer = NULL;
8429abe0 RW	185
	186	log_debug("%s: lsr-id %s", __func__, inet_ntoa(adj->lsr_id));
	187
	188	if (adj->source.type == HELLO_TARGETED) {
	189	if (!(adj->source.target->flags & F_TNBR_CONFIGURED) &&
	190	adj->source.target->pw_count == 0) {
	191	/* remove dynamic targeted neighbor */
7989cdba	192	tnbr_del(leconf, adj->source.target);
eac6e3f0	193	return (0);
8429abe0 RW	194	}
	195	adj->source.target->adj = NULL;
	196	}
	197
	198	adj_del(adj, S_HOLDTIME_EXP);
eac6e3f0 RW	199
eac6e3f0 RW	200	return (0);
8429abe0 RW	201	}
	202
	203	void
	204	adj_start_itimer(struct adj *adj)
	205	{
eac6e3f0 RW	206	THREAD_TIMER_OFF(adj->inactivity_timer);
	207	adj->inactivity_timer = thread_add_timer(master, adj_itimer, adj,
	208	adj->holdtime);
8429abe0 RW	209	}
	210
	211	void
	212	adj_stop_itimer(struct adj *adj)
	213	{
eac6e3f0	214	THREAD_TIMER_OFF(adj->inactivity_timer);
8429abe0 RW	215	}
	216
	217	/* targeted neighbors */
	218
7989cdba RW	219	static __inline int
	220	tnbr_compare(struct tnbr a, struct tnbr b)
	221	{
	222	if (a->af < b->af)
	223	return (-1);
	224	if (a->af > b->af)
	225	return (1);
	226
	227	return (ldp_addrcmp(a->af, &a->addr, &b->addr));
	228	}
	229
8429abe0	230	struct tnbr *
eac6e3f0	231	tnbr_new(int af, union ldpd_addr *addr)
8429abe0 RW	232	{
	233	struct tnbr *tnbr;
	234
	235	if ((tnbr = calloc(1, sizeof(*tnbr))) == NULL)
	236	fatal(__func__);
	237
	238	tnbr->af = af;
	239	tnbr->addr = *addr;
	240	tnbr->state = TNBR_STA_DOWN;
8429abe0 RW	241
	242	return (tnbr);
	243	}
	244
	245	static void
7989cdba	246	tnbr_del(struct ldpd_conf xconf, struct tnbr tnbr)
8429abe0 RW	247	{
	248	tnbr_stop_hello_timer(tnbr);
	249	if (tnbr->adj)
	250	adj_del(tnbr->adj, S_SHUTDOWN);
7989cdba	251	RB_REMOVE(tnbr_head, &xconf->tnbr_tree, tnbr);
8429abe0 RW	252	free(tnbr);
	253	}
	254
	255	struct tnbr *
	256	tnbr_find(struct ldpd_conf xconf, int af, union ldpd_addr addr)
	257	{
7989cdba RW	258	struct tnbr tnbr;
	259	tnbr.af = af;
	260	tnbr.addr = *addr;
	261	return (RB_FIND(tnbr_head, &xconf->tnbr_tree, &tnbr));
8429abe0 RW	262	}
	263
	264	struct tnbr *
7989cdba	265	tnbr_check(struct ldpd_conf xconf, struct tnbr tnbr)
8429abe0 RW	266	{
	267	if (!(tnbr->flags & (F_TNBR_CONFIGURED\|F_TNBR_DYNAMIC)) &&
	268	tnbr->pw_count == 0) {
7989cdba	269	tnbr_del(xconf, tnbr);
8429abe0 RW	270	return (NULL);
	271	}
	272
	273	return (tnbr);
	274	}
	275
	276	void
	277	tnbr_update(struct tnbr *tnbr)
	278	{
	279	int socket_ok, rtr_id_ok;
	280
	281	if ((ldp_af_global_get(&global, tnbr->af))->ldp_edisc_socket != -1)
	282	socket_ok = 1;
	283	else
	284	socket_ok = 0;
	285
eac6e3f0	286	if (ldp_rtr_id_get(leconf) != INADDR_ANY)
8429abe0 RW	287	rtr_id_ok = 1;
	288	else
	289	rtr_id_ok = 0;
	290
	291	if (tnbr->state == TNBR_STA_DOWN) {
	292	if (!socket_ok \|\| !rtr_id_ok)
	293	return;
	294
	295	tnbr->state = TNBR_STA_ACTIVE;
	296	send_hello(HELLO_TARGETED, NULL, tnbr);
	297
8429abe0 RW	298	tnbr_start_hello_timer(tnbr);
	299	} else if (tnbr->state == TNBR_STA_ACTIVE) {
	300	if (socket_ok && rtr_id_ok)
	301	return;
	302
	303	tnbr->state = TNBR_STA_DOWN;
	304	tnbr_stop_hello_timer(tnbr);
	305	}
	306	}
	307
	308	void
	309	tnbr_update_all(int af)
	310	{
	311	struct tnbr *tnbr;
	312
	313	/* update targeted neighbors */
7989cdba	314	RB_FOREACH(tnbr, tnbr_head, &leconf->tnbr_tree)
8429abe0 RW	315	if (tnbr->af == af \|\| af == AF_UNSPEC)
	316	tnbr_update(tnbr);
	317	}
	318
eac6e3f0 RW	319	uint16_t
	320	tnbr_get_hello_holdtime(struct tnbr *tnbr)
	321	{
	322	if ((ldp_af_conf_get(leconf, tnbr->af))->thello_holdtime != 0)
	323	return ((ldp_af_conf_get(leconf, tnbr->af))->thello_holdtime);
	324
	325	return (leconf->thello_holdtime);
	326	}
	327
	328	uint16_t
	329	tnbr_get_hello_interval(struct tnbr *tnbr)
	330	{
	331	if ((ldp_af_conf_get(leconf, tnbr->af))->thello_interval != 0)
	332	return ((ldp_af_conf_get(leconf, tnbr->af))->thello_interval);
	333
	334	return (leconf->thello_interval);
	335	}
	336
8429abe0 RW	337	/* target neighbors timers */
	338
	339	/* ARGSUSED */
eac6e3f0 RW	340	static int
eac6e3f0 RW	341	tnbr_hello_timer(struct thread *thread)
8429abe0	342	{
eac6e3f0	343	struct tnbr *tnbr = THREAD_ARG(thread);
8429abe0	344
eac6e3f0	345	tnbr->hello_timer = NULL;
8429abe0 RW	346	send_hello(HELLO_TARGETED, NULL, tnbr);
8429abe0 RW	347	tnbr_start_hello_timer(tnbr);
eac6e3f0 RW	348
eac6e3f0 RW	349	return (0);
8429abe0 RW	350	}
	351
	352	static void
	353	tnbr_start_hello_timer(struct tnbr *tnbr)
	354	{
eac6e3f0 RW	355	THREAD_TIMER_OFF(tnbr->hello_timer);
	356	tnbr->hello_timer = thread_add_timer(master, tnbr_hello_timer, tnbr,
	357	tnbr_get_hello_interval(tnbr));
8429abe0 RW	358	}
	359
	360	static void
	361	tnbr_stop_hello_timer(struct tnbr *tnbr)
	362	{
eac6e3f0	363	THREAD_TIMER_OFF(tnbr->hello_timer);
8429abe0 RW	364	}
	365
	366	struct ctl_adj *
	367	adj_to_ctl(struct adj *adj)
	368	{
	369	static struct ctl_adj actl;
	370
	371	actl.af = adj_get_af(adj);
	372	actl.id = adj->lsr_id;
	373	actl.type = adj->source.type;
	374	switch (adj->source.type) {
	375	case HELLO_LINK:
	376	memcpy(actl.ifname, adj->source.link.ia->iface->name,
	377	sizeof(actl.ifname));
0f7b5df9	378	actl.src_addr = adj->source.link.src_addr;
8429abe0 RW	379	break;
	380	case HELLO_TARGETED:
	381	actl.src_addr = adj->source.target->addr;
	382	break;
	383	}
	384	actl.holdtime = adj->holdtime;
0f7b5df9 RW	385	actl.holdtime_remaining =
0f7b5df9 RW	386	thread_timer_remain_second(adj->inactivity_timer);
8429abe0	387	actl.trans_addr = adj->trans_addr;
0f7b5df9	388	actl.ds_tlv = adj->ds_tlv;
8429abe0 RW	389
	390	return (&actl);
	391	}