[mirror_frr.git] / ldpd / ldpe.h

/*	$OpenBSD$ */

/*
 * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
 * Copyright (c) 2009 Michele Marchetto <michele@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.
 */

#ifndef _LDPE_H_
#define _LDPE_H_

#include "openbsd-queue.h"
#include "openbsd-tree.h"
#ifdef __OpenBSD__
#include <net/pfkeyv2.h>
#endif

#include "ldpd.h"

#define min(x,y) ((x) <= (y) ? (x) : (y))
#define max(x,y) ((x) > (y) ? (x) : (y))

/* forward declarations */
TAILQ_HEAD(mapping_head, mapping_entry);

struct hello_source {
	enum hello_type		 type;
	struct {
		struct iface_af	*ia;
		union ldpd_addr	 src_addr;
	} link;
	struct tnbr		*target;
};

struct adj {
	RB_ENTRY(adj)		 global_entry, nbr_entry, ia_entry;
	struct in_addr		 lsr_id;
	struct nbr		*nbr;
	int			 ds_tlv;
	struct hello_source	 source;
	struct thread		*inactivity_timer;
	uint16_t		 holdtime;
	union ldpd_addr		 trans_addr;
};
RB_PROTOTYPE(global_adj_head, adj, global_entry, adj_compare)
RB_PROTOTYPE(nbr_adj_head, adj, nbr_entry, adj_compare)
RB_PROTOTYPE(ia_adj_head, adj, ia_entry, adj_compare)

struct tcp_conn {
	struct nbr		*nbr;
	int			 fd;
	struct ibuf_read	*rbuf;
	struct evbuf		 wbuf;
	struct thread		*rev;
	in_port_t		 lport;
	in_port_t		 rport;
};

struct nbr {
	RB_ENTRY(nbr)		 id_tree, addr_tree, pid_tree;
	struct tcp_conn		*tcp;
	struct nbr_adj_head	 adj_tree;	/* adjacencies */
	struct thread		*ev_connect;
	struct thread		*keepalive_timer;
	struct thread		*keepalive_timeout;
	struct thread		*init_timeout;
	struct thread		*initdelay_timer;

	struct mapping_head	 mapping_list;
	struct mapping_head	 withdraw_list;
	struct mapping_head	 request_list;
	struct mapping_head	 release_list;
	struct mapping_head	 abortreq_list;

	uint32_t		 peerid;	/* unique ID in DB */
	int			 af;
	int			 ds_tlv;
	int			 v4_enabled;	/* announce/process v4 msgs */
	int			 v6_enabled;	/* announce/process v6 msgs */
	struct in_addr		 id;		/* lsr id */
	union ldpd_addr		 laddr;		/* local address */
	union ldpd_addr		 raddr;		/* remote address */
	uint32_t		 raddr_scope;	/* remote address scope (v6) */
	time_t			 uptime;
	int			 fd;
	int			 state;
	uint32_t		 conf_seqnum;
	int			 idtimer_cnt;
	uint16_t		 keepalive;
	uint16_t		 max_pdu_len;

	struct {
		uint8_t			established;
		uint32_t		spi_in;
		uint32_t		spi_out;
		enum auth_method	method;
		char			md5key[TCP_MD5_KEY_LEN];
	} auth;
	int			 flags;
};
#define F_NBR_GTSM_NEGOTIATED	 0x01

RB_HEAD(nbr_id_head, nbr);
RB_PROTOTYPE(nbr_id_head, nbr, id_tree, nbr_id_compare)
RB_HEAD(nbr_addr_head, nbr);
RB_PROTOTYPE(nbr_addr_head, nbr, addr_tree, nbr_addr_compare)
RB_HEAD(nbr_pid_head, nbr);
RB_PROTOTYPE(nbr_pid_head, nbr, pid_tree, nbr_pid_compare)

struct pending_conn {
	TAILQ_ENTRY(pending_conn)	 entry;
	int				 fd;
	int				 af;
	union ldpd_addr			 addr;
	struct thread			*ev_timeout;
};
#define PENDING_CONN_TIMEOUT	5

struct mapping_entry {
	TAILQ_ENTRY(mapping_entry)	entry;
	struct map			map;
};

struct ldpd_sysdep {
	uint8_t		no_pfkey;
	uint8_t		no_md5sig;
};

extern struct ldpd_conf		*leconf;
extern struct ldpd_sysdep	 sysdep;
extern struct nbr_id_head	 nbrs_by_id;
extern struct nbr_addr_head	 nbrs_by_addr;
extern struct nbr_pid_head	 nbrs_by_pid;

/* accept.c */
void	accept_init(void);
int	accept_add(int, int (*)(struct thread *), void *);
void	accept_del(int);
void	accept_pause(void);
void	accept_unpause(void);

/* hello.c */
int	 send_hello(enum hello_type, struct iface_af *, struct tnbr *);
void	 recv_hello(struct in_addr, struct ldp_msg *, int, union ldpd_addr *,
	    struct iface *, int, char *, uint16_t);

/* init.c */
void	 send_init(struct nbr *);
int	 recv_init(struct nbr *, char *, uint16_t);

/* keepalive.c */
void	 send_keepalive(struct nbr *);
int	 recv_keepalive(struct nbr *, char *, uint16_t);

/* notification.c */
void	 send_notification_full(struct tcp_conn *, struct notify_msg *);
void	 send_notification(uint32_t, struct tcp_conn *, uint32_t,
	    uint16_t);
void	 send_notification_nbr(struct nbr *, uint32_t, uint32_t, uint16_t);
int	 recv_notification(struct nbr *, char *, uint16_t);
int	 gen_status_tlv(struct ibuf *, uint32_t, uint32_t, uint16_t);

/* address.c */
void	 send_address_single(struct nbr *, struct if_addr *, int);
void	 send_address_all(struct nbr *, int);
int	 recv_address(struct nbr *, char *, uint16_t);

/* labelmapping.c */
#define PREFIX_SIZE(x)	(((x) + 7) / 8)
void	 send_labelmessage(struct nbr *, uint16_t, struct mapping_head *);
int	 recv_labelmessage(struct nbr *, char *, uint16_t, uint16_t);
int	 gen_pw_status_tlv(struct ibuf *, uint32_t);
int	 gen_fec_tlv(struct ibuf *, struct map *);
int	 tlv_decode_fec_elm(struct nbr *, struct ldp_msg *, char *,
	    uint16_t, struct map *);

/* ldpe.c */
void		 ldpe(const char *, const char *);
int		 ldpe_imsg_compose_parent(int, pid_t, void *,
		    uint16_t);
int		 ldpe_imsg_compose_lde(int, uint32_t, pid_t, void *,
		    uint16_t);
void		 ldpe_reset_nbrs(int);
void		 ldpe_reset_ds_nbrs(void);
void		 ldpe_remove_dynamic_tnbrs(int);
void		 ldpe_stop_init_backoff(int);
struct ctl_conn;
void		 ldpe_iface_ctl(struct ctl_conn *, unsigned int);
void		 ldpe_adj_ctl(struct ctl_conn *);
void		 ldpe_nbr_ctl(struct ctl_conn *);
void		 mapping_list_add(struct mapping_head *, struct map *);
void		 mapping_list_clr(struct mapping_head *);

/* interface.c */
struct iface	*if_new(struct kif *);
void		 if_exit(struct iface *);
struct iface	*if_lookup(struct ldpd_conf *, unsigned short);
struct iface	*if_lookup_name(struct ldpd_conf *, const char *);
void		 if_update_info(struct iface *, struct kif *);
struct iface_af *iface_af_get(struct iface *, int);
void		 if_addr_add(struct kaddr *);
void		 if_addr_del(struct kaddr *);
void		 if_update(struct iface *, int);
void		 if_update_all(int);
uint16_t	 if_get_hello_holdtime(struct iface_af *);
uint16_t	 if_get_hello_interval(struct iface_af *);
struct ctl_iface *if_to_ctl(struct iface_af *);
in_addr_t	 if_get_ipv4_addr(struct iface *);

/* adjacency.c */
struct adj	*adj_new(struct in_addr, struct hello_source *,
		    union ldpd_addr *);
void		 adj_del(struct adj *, uint32_t);
struct adj	*adj_find(struct hello_source *);
int		 adj_get_af(struct adj *adj);
void		 adj_start_itimer(struct adj *);
void		 adj_stop_itimer(struct adj *);
struct tnbr	*tnbr_new(int, union ldpd_addr *);
struct tnbr	*tnbr_find(struct ldpd_conf *, int, union ldpd_addr *);
struct tnbr	*tnbr_check(struct ldpd_conf *, struct tnbr *);
void		 tnbr_update(struct tnbr *);
void		 tnbr_update_all(int);
uint16_t	 tnbr_get_hello_holdtime(struct tnbr *);
uint16_t	 tnbr_get_hello_interval(struct tnbr *);
struct ctl_adj	*adj_to_ctl(struct adj *);

/* neighbor.c */
int			 nbr_fsm(struct nbr *, enum nbr_event);
struct nbr		*nbr_new(struct in_addr, int, int, union ldpd_addr *,
			    uint32_t);
void			 nbr_del(struct nbr *);
struct nbr		*nbr_find_ldpid(uint32_t);
struct nbr		*nbr_find_addr(int, union ldpd_addr *);
struct nbr		*nbr_find_peerid(uint32_t);
int			 nbr_adj_count(struct nbr *, int);
int			 nbr_session_active_role(struct nbr *);
void			 nbr_stop_ktimer(struct nbr *);
void			 nbr_stop_ktimeout(struct nbr *);
void			 nbr_stop_itimeout(struct nbr *);
void			 nbr_start_idtimer(struct nbr *);
void			 nbr_stop_idtimer(struct nbr *);
int			 nbr_pending_idtimer(struct nbr *);
int			 nbr_pending_connect(struct nbr *);
int			 nbr_establish_connection(struct nbr *);
int			 nbr_gtsm_enabled(struct nbr *, struct nbr_params *);
int			 nbr_gtsm_setup(int, int, struct nbr_params *);
int			 nbr_gtsm_check(int, struct nbr *, struct nbr_params *);
struct nbr_params	*nbr_params_new(struct in_addr);
struct nbr_params	*nbr_params_find(struct ldpd_conf *, struct in_addr);
uint16_t		 nbr_get_keepalive(int, struct in_addr);
struct ctl_nbr		*nbr_to_ctl(struct nbr *);
void			 nbr_clear_ctl(struct ctl_nbr *);

/* packet.c */
int			 gen_ldp_hdr(struct ibuf *, uint16_t);
int			 gen_msg_hdr(struct ibuf *, uint16_t, uint16_t);
int			 send_packet(int, int, union ldpd_addr *,
			    struct iface_af *, void *, size_t);
int			 disc_recv_packet(struct thread *);
int			 session_accept(struct thread *);
void			 session_accept_nbr(struct nbr *, int);
void			 session_shutdown(struct nbr *, uint32_t, uint32_t,
			    uint32_t);
void			 session_close(struct nbr *);
struct tcp_conn		*tcp_new(int, struct nbr *);
void			 pending_conn_del(struct pending_conn *);
struct pending_conn	*pending_conn_find(int, union ldpd_addr *);

char	*pkt_ptr;	/* packet buffer */

/* pfkey.c */
#ifdef __OpenBSD__
int	pfkey_read(int, struct sadb_msg *);
int	pfkey_establish(struct nbr *, struct nbr_params *);
int	pfkey_remove(struct nbr *);
int	pfkey_init(void);
#endif

/* l2vpn.c */
void	ldpe_l2vpn_init(struct l2vpn *);
void	ldpe_l2vpn_exit(struct l2vpn *);
void	ldpe_l2vpn_pw_init(struct l2vpn_pw *);
void	ldpe_l2vpn_pw_exit(struct l2vpn_pw *);

#endif	/* _LDPE_H_ */
Commit	Line	Data
8429abe0 RW	1	/* $OpenBSD$ */
	2
	3	/*
	4	* Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
	5	* Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
	6	* Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org>
	7	*
	8	* Permission to use, copy, modify, and distribute this software for any
	9	* purpose with or without fee is hereby granted, provided that the above
	10	* copyright notice and this permission notice appear in all copies.
	11	*
	12	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	13	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	14	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	15	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	16	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	17	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	18	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	19	*/
	20
	21	#ifndef _LDPE_H_
	22	#define _LDPE_H_
	23
eac6e3f0 RW	24	#include "openbsd-queue.h"
	25	#include "openbsd-tree.h"
	26	#ifdef __OpenBSD__
8429abe0	27	#include <net/pfkeyv2.h>
eac6e3f0	28	#endif
8429abe0 RW	29
	30	#include "ldpd.h"
	31
	32	#define min(x,y) ((x) <= (y) ? (x) : (y))
	33	#define max(x,y) ((x) > (y) ? (x) : (y))
	34
057d48bd RW	35	/* forward declarations */
	36	TAILQ_HEAD(mapping_head, mapping_entry);
	37
8429abe0 RW	38	struct hello_source {
	39	enum hello_type type;
	40	struct {
	41	struct iface_af *ia;
	42	union ldpd_addr src_addr;
	43	} link;
	44	struct tnbr *target;
	45	};
	46
	47	struct adj {
057d48bd	48	RB_ENTRY(adj) global_entry, nbr_entry, ia_entry;
8429abe0 RW	49	struct in_addr lsr_id;
	50	struct nbr *nbr;
	51	int ds_tlv;
	52	struct hello_source source;
eac6e3f0	53	struct thread *inactivity_timer;
8429abe0 RW	54	uint16_t holdtime;
	55	union ldpd_addr trans_addr;
	56	};
057d48bd RW	57	RB_PROTOTYPE(global_adj_head, adj, global_entry, adj_compare)
	58	RB_PROTOTYPE(nbr_adj_head, adj, nbr_entry, adj_compare)
	59	RB_PROTOTYPE(ia_adj_head, adj, ia_entry, adj_compare)
8429abe0 RW	60
	61	struct tcp_conn {
	62	struct nbr *nbr;
	63	int fd;
	64	struct ibuf_read *rbuf;
	65	struct evbuf wbuf;
eac6e3f0 RW	66	struct thread *rev;
	67	in_port_t lport;
	68	in_port_t rport;
8429abe0 RW	69	};
	70
	71	struct nbr {
	72	RB_ENTRY(nbr) id_tree, addr_tree, pid_tree;
	73	struct tcp_conn *tcp;
057d48bd	74	struct nbr_adj_head adj_tree; /* adjacencies */
eac6e3f0 RW	75	struct thread *ev_connect;
	76	struct thread *keepalive_timer;
	77	struct thread *keepalive_timeout;
	78	struct thread *init_timeout;
	79	struct thread *initdelay_timer;
8429abe0 RW	80
	81	struct mapping_head mapping_list;
	82	struct mapping_head withdraw_list;
	83	struct mapping_head request_list;
	84	struct mapping_head release_list;
	85	struct mapping_head abortreq_list;
	86
	87	uint32_t peerid; /* unique ID in DB */
	88	int af;
	89	int ds_tlv;
	90	int v4_enabled; /* announce/process v4 msgs */
	91	int v6_enabled; /* announce/process v6 msgs */
	92	struct in_addr id; /* lsr id */
	93	union ldpd_addr laddr; /* local address */
	94	union ldpd_addr raddr; /* remote address */
	95	uint32_t raddr_scope; /* remote address scope (v6) */
	96	time_t uptime;
	97	int fd;
	98	int state;
	99	uint32_t conf_seqnum;
	100	int idtimer_cnt;
	101	uint16_t keepalive;
	102	uint16_t max_pdu_len;
	103
	104	struct {
	105	uint8_t established;
	106	uint32_t spi_in;
	107	uint32_t spi_out;
	108	enum auth_method method;
	109	char md5key[TCP_MD5_KEY_LEN];
	110	} auth;
	111	int flags;
	112	};
	113	#define F_NBR_GTSM_NEGOTIATED 0x01
	114
	115	RB_HEAD(nbr_id_head, nbr);
	116	RB_PROTOTYPE(nbr_id_head, nbr, id_tree, nbr_id_compare)
	117	RB_HEAD(nbr_addr_head, nbr);
	118	RB_PROTOTYPE(nbr_addr_head, nbr, addr_tree, nbr_addr_compare)
	119	RB_HEAD(nbr_pid_head, nbr);
	120	RB_PROTOTYPE(nbr_pid_head, nbr, pid_tree, nbr_pid_compare)
	121
	122	struct pending_conn {
	123	TAILQ_ENTRY(pending_conn) entry;
	124	int fd;
	125	int af;
	126	union ldpd_addr addr;
eac6e3f0	127	struct thread *ev_timeout;
8429abe0 RW	128	};
	129	#define PENDING_CONN_TIMEOUT 5
	130
	131	struct mapping_entry {
	132	TAILQ_ENTRY(mapping_entry) entry;
	133	struct map map;
	134	};
	135
	136	struct ldpd_sysdep {
	137	uint8_t no_pfkey;
	138	uint8_t no_md5sig;
	139	};
	140
	141	extern struct ldpd_conf *leconf;
	142	extern struct ldpd_sysdep sysdep;
	143	extern struct nbr_id_head nbrs_by_id;
	144	extern struct nbr_addr_head nbrs_by_addr;
	145	extern struct nbr_pid_head nbrs_by_pid;
	146
	147	/* accept.c */
	148	void accept_init(void);
eac6e3f0	149	int accept_add(int, int ()(struct thread ), void *);
8429abe0 RW	150	void accept_del(int);
	151	void accept_pause(void);
	152	void accept_unpause(void);
	153
	154	/* hello.c */
	155	int send_hello(enum hello_type, struct iface_af , struct tnbr );
	156	void recv_hello(struct in_addr, struct ldp_msg , int, union ldpd_addr ,
	157	struct iface , int, char , uint16_t);
	158
	159	/* init.c */
	160	void send_init(struct nbr *);
	161	int recv_init(struct nbr , char , uint16_t);
	162
	163	/* keepalive.c */
	164	void send_keepalive(struct nbr *);
	165	int recv_keepalive(struct nbr , char , uint16_t);
	166
	167	/* notification.c */
	168	void send_notification_full(struct tcp_conn , struct notify_msg );
	169	void send_notification(uint32_t, struct tcp_conn *, uint32_t,
	170	uint16_t);
	171	void send_notification_nbr(struct nbr *, uint32_t, uint32_t, uint16_t);
	172	int recv_notification(struct nbr , char , uint16_t);
	173	int gen_status_tlv(struct ibuf *, uint32_t, uint32_t, uint16_t);
	174
	175	/* address.c */
	176	void send_address_single(struct nbr , struct if_addr , int);
	177	void send_address_all(struct nbr *, int);
	178	int recv_address(struct nbr , char , uint16_t);
	179
	180	/* labelmapping.c */
	181	#define PREFIX_SIZE(x) (((x) + 7) / 8)
	182	void send_labelmessage(struct nbr , uint16_t, struct mapping_head );
	183	int recv_labelmessage(struct nbr , char , uint16_t, uint16_t);
	184	int gen_pw_status_tlv(struct ibuf *, uint32_t);
	185	int gen_fec_tlv(struct ibuf , struct map );
	186	int tlv_decode_fec_elm(struct nbr , struct ldp_msg , char *,
	187	uint16_t, struct map *);
	188
	189	/* ldpe.c */
eac6e3f0	190	void ldpe(const char , const char );
8429abe0 RW	191	int ldpe_imsg_compose_parent(int, pid_t, void *,
	192	uint16_t);
	193	int ldpe_imsg_compose_lde(int, uint32_t, pid_t, void *,
	194	uint16_t);
	195	void ldpe_reset_nbrs(int);
	196	void ldpe_reset_ds_nbrs(void);
	197	void ldpe_remove_dynamic_tnbrs(int);
	198	void ldpe_stop_init_backoff(int);
	199	struct ctl_conn;
	200	void ldpe_iface_ctl(struct ctl_conn *, unsigned int);
	201	void ldpe_adj_ctl(struct ctl_conn *);
	202	void ldpe_nbr_ctl(struct ctl_conn *);
	203	void mapping_list_add(struct mapping_head , struct map );
	204	void mapping_list_clr(struct mapping_head *);
	205
	206	/* interface.c */
	207	struct iface if_new(struct kif );
	208	void if_exit(struct iface *);
	209	struct iface if_lookup(struct ldpd_conf , unsigned short);
eac6e3f0 RW	210	struct iface if_lookup_name(struct ldpd_conf , const char *);
eac6e3f0 RW	211	void if_update_info(struct iface , struct kif );
8429abe0 RW	212	struct iface_af iface_af_get(struct iface , int);
	213	void if_addr_add(struct kaddr *);
	214	void if_addr_del(struct kaddr *);
	215	void if_update(struct iface *, int);
	216	void if_update_all(int);
eac6e3f0 RW	217	uint16_t if_get_hello_holdtime(struct iface_af *);
eac6e3f0 RW	218	uint16_t if_get_hello_interval(struct iface_af *);
8429abe0 RW	219	struct ctl_iface if_to_ctl(struct iface_af );
	220	in_addr_t if_get_ipv4_addr(struct iface *);
	221
	222	/* adjacency.c */
	223	struct adj adj_new(struct in_addr, struct hello_source ,
	224	union ldpd_addr *);
	225	void adj_del(struct adj *, uint32_t);
	226	struct adj adj_find(struct hello_source );
	227	int adj_get_af(struct adj *adj);
	228	void adj_start_itimer(struct adj *);
	229	void adj_stop_itimer(struct adj *);
eac6e3f0	230	struct tnbr tnbr_new(int, union ldpd_addr );
8429abe0	231	struct tnbr tnbr_find(struct ldpd_conf , int, union ldpd_addr *);
7989cdba	232	struct tnbr tnbr_check(struct ldpd_conf , struct tnbr *);
8429abe0 RW	233	void tnbr_update(struct tnbr *);
8429abe0 RW	234	void tnbr_update_all(int);
eac6e3f0 RW	235	uint16_t tnbr_get_hello_holdtime(struct tnbr *);
eac6e3f0 RW	236	uint16_t tnbr_get_hello_interval(struct tnbr *);
8429abe0 RW	237	struct ctl_adj adj_to_ctl(struct adj );
	238
	239	/* neighbor.c */
	240	int nbr_fsm(struct nbr *, enum nbr_event);
	241	struct nbr nbr_new(struct in_addr, int, int, union ldpd_addr ,
	242	uint32_t);
	243	void nbr_del(struct nbr *);
	244	struct nbr *nbr_find_ldpid(uint32_t);
	245	struct nbr nbr_find_addr(int, union ldpd_addr );
	246	struct nbr *nbr_find_peerid(uint32_t);
	247	int nbr_adj_count(struct nbr *, int);
	248	int nbr_session_active_role(struct nbr *);
	249	void nbr_stop_ktimer(struct nbr *);
	250	void nbr_stop_ktimeout(struct nbr *);
	251	void nbr_stop_itimeout(struct nbr *);
	252	void nbr_start_idtimer(struct nbr *);
	253	void nbr_stop_idtimer(struct nbr *);
	254	int nbr_pending_idtimer(struct nbr *);
	255	int nbr_pending_connect(struct nbr *);
	256	int nbr_establish_connection(struct nbr *);
	257	int nbr_gtsm_enabled(struct nbr , struct nbr_params );
	258	int nbr_gtsm_setup(int, int, struct nbr_params *);
	259	int nbr_gtsm_check(int, struct nbr , struct nbr_params );
	260	struct nbr_params *nbr_params_new(struct in_addr);
	261	struct nbr_params nbr_params_find(struct ldpd_conf , struct in_addr);
	262	uint16_t nbr_get_keepalive(int, struct in_addr);
	263	struct ctl_nbr nbr_to_ctl(struct nbr );
	264	void nbr_clear_ctl(struct ctl_nbr *);
	265
	266	/* packet.c */
	267	int gen_ldp_hdr(struct ibuf *, uint16_t);
	268	int gen_msg_hdr(struct ibuf *, uint16_t, uint16_t);
	269	int send_packet(int, int, union ldpd_addr *,
	270	struct iface_af , void , size_t);
eac6e3f0 RW	271	int disc_recv_packet(struct thread *);
eac6e3f0 RW	272	int session_accept(struct thread *);
8429abe0 RW	273	void session_accept_nbr(struct nbr *, int);
	274	void session_shutdown(struct nbr *, uint32_t, uint32_t,
	275	uint32_t);
	276	void session_close(struct nbr *);
	277	struct tcp_conn tcp_new(int, struct nbr );
	278	void pending_conn_del(struct pending_conn *);
	279	struct pending_conn pending_conn_find(int, union ldpd_addr );
	280
	281	char pkt_ptr; / packet buffer */
	282
	283	/* pfkey.c */
eac6e3f0	284	#ifdef __OpenBSD__
8429abe0 RW	285	int pfkey_read(int, struct sadb_msg *);
	286	int pfkey_establish(struct nbr , struct nbr_params );
	287	int pfkey_remove(struct nbr *);
	288	int pfkey_init(void);
eac6e3f0	289	#endif
8429abe0 RW	290
	291	/* l2vpn.c */
	292	void ldpe_l2vpn_init(struct l2vpn *);
	293	void ldpe_l2vpn_exit(struct l2vpn *);
	294	void ldpe_l2vpn_pw_init(struct l2vpn_pw *);
	295	void ldpe_l2vpn_pw_exit(struct l2vpn_pw *);
	296
	297	#endif /* _LDPE_H_ */