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/* $OpenBSD: ldpe.h,v 1.10 2010/05/26 13:56:08 nicm Exp $ */
/*
* 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_
#define max(x,y) ((x) > (y) ? (x) : (y))
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
TAILQ_HEAD(ctl_conns, ctl_conn) ctl_conns;
struct mapping_entry {
TAILQ_ENTRY(mapping_entry) entry;
u_int32_t label;
u_int32_t prefix;
u_int8_t prefixlen;
};
struct nbr {
LIST_ENTRY(nbr) entry, hash;
struct evbuf wbuf;
struct event rev;
struct event inactivity_timer;
struct event keepalive_timer;
struct event keepalive_timeout;
struct event 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;
struct in_addr addr;
struct in_addr id;
struct ibuf_read *rbuf;
struct iface *iface;
time_t uptime;
u_int32_t peerid; /* unique ID in DB */
int fd;
int state;
u_int16_t lspace;
u_int16_t holdtime;
u_int16_t keepalive;
u_int8_t priority;
u_int8_t options;
u_int8_t flags;
u_int8_t hello_type;
};
/* hello.c */
int send_hello(struct iface *);
void recv_hello(struct iface *, struct in_addr, char *, u_int16_t);
/* init.c */
void send_init(struct nbr *);
int recv_init(struct nbr *, char *, u_int16_t);
/* keepalive.c */
void send_keepalive(struct nbr *);
int recv_keepalive(struct nbr *, char *, u_int16_t);
/* notification.c */
void send_notification_nbr(struct nbr *, u_int32_t, u_int32_t, u_int32_t);
struct ibuf *send_notification(u_int32_t, struct iface *, u_int32_t,
u_int32_t);
int recv_notification(struct nbr *, char *, u_int16_t);
/* address.c */
void send_address(struct nbr *, struct iface *);
int recv_address(struct nbr *, char *, u_int16_t);
void send_address_withdraw(struct nbr *, struct iface *);
int recv_address_withdraw(struct nbr *, char *, u_int16_t);
/* labelmapping.c */
#define PREFIX_SIZE(x) (((x) + 7) / 8)
void send_labelmapping(struct nbr *);
int recv_labelmapping(struct nbr *, char *, u_int16_t);
void send_labelrequest(struct nbr *);
int recv_labelrequest(struct nbr *, char *, u_int16_t);
void send_labelwithdraw(struct nbr *);
int recv_labelwithdraw(struct nbr *, char *, u_int16_t);
void send_labelrelease(struct nbr *);
int recv_labelrelease(struct nbr *, char *, u_int16_t);
void send_labelabortreq(struct nbr *);
int recv_labelabortreq(struct nbr *, char *, u_int16_t);
/* ldpe.c */
pid_t ldpe(struct ldpd_conf *, int[2], int[2], int[2]);
void ldpe_dispatch_main(int, short, void *);
void ldpe_dispatch_lde(int, short, void *);
int ldpe_imsg_compose_parent(int, pid_t, void *, u_int16_t);
int ldpe_imsg_compose_lde(int, u_int32_t, pid_t, void *,
u_int16_t);
u_int32_t ldpe_router_id(void);
void ldpe_fib_update(int);
void ldpe_iface_ctl(struct ctl_conn *, unsigned int);
void ldpe_nbr_ctl(struct ctl_conn *);
/* interface.c */
int if_fsm(struct iface *, enum iface_event);
struct iface *if_new(struct kif *, struct kif_addr *);
void if_del(struct iface *);
void if_init(struct ldpd_conf *, struct iface *);
int if_act_start(struct iface *);
int if_act_reset(struct iface *);
struct ctl_iface *if_to_ctl(struct iface *);
int if_join_group(struct iface *, struct in_addr *);
int if_leave_group(struct iface *, struct in_addr *);
int if_set_mcast(struct iface *);
int if_set_recvif(int, int);
void if_set_recvbuf(int);
int if_set_mcast_loop(int);
int if_set_mcast_ttl(int, u_int8_t);
int if_set_tos(int, int);
int if_set_reuse(int, int);
/* neighbor.c */
void nbr_init(u_int32_t);
struct nbr *nbr_new(u_int32_t, u_int16_t, struct iface *);
void nbr_del(struct nbr *);
struct nbr *nbr_find_ip(struct iface *, u_int32_t);
struct nbr *nbr_find_ldpid(struct iface *, u_int32_t, u_int16_t);
struct nbr *nbr_find_peerid(u_int32_t);
int nbr_fsm(struct nbr *, enum nbr_event);
void nbr_itimer(int, short, void *);
void nbr_start_itimer(struct nbr *);
void nbr_stop_itimer(struct nbr *);
void nbr_reset_itimer(struct nbr *);
void nbr_ktimer(int, short, void *);
void nbr_start_ktimer(struct nbr *);
void nbr_stop_ktimer(struct nbr *);
void nbr_reset_ktimer(struct nbr *);
void nbr_ktimeout(int, short, void *);
void nbr_start_ktimeout(struct nbr *);
void nbr_stop_ktimeout(struct nbr *);
void nbr_reset_ktimeout(struct nbr *);
void nbr_idtimer(int, short, void *);
void nbr_start_idtimer(struct nbr *);
void nbr_stop_idtimer(struct nbr *);
void nbr_reset_idtimer(struct nbr *);
int nbr_pending_idtimer(struct nbr *);
int nbr_act_session_establish(struct nbr *, int);
void nbr_mapping_add(struct nbr *, struct mapping_head *,
struct map *);
struct mapping_entry *nbr_mapping_find(struct nbr *, struct mapping_head *,
struct map *);
void nbr_mapping_del(struct nbr *, struct mapping_head *,
struct map *);
void nbr_mapping_list_clr(struct nbr *,
struct mapping_head *);
struct ctl_nbr *nbr_to_ctl(struct nbr *);
/* packet.c */
int gen_ldp_hdr(struct ibuf *, struct iface *, u_int16_t);
int gen_msg_tlv(struct ibuf *, u_int32_t, u_int16_t);
int send_packet(struct iface *, void *, size_t, struct sockaddr_in *);
void disc_recv_packet(int, short, void *);
void session_accept(int, short, void *);
void session_read(int, short, void *);
void session_write(int, short, void *);
void session_close(struct nbr *);
void session_shutdown(struct nbr *, u_int32_t, u_int32_t, u_int32_t);
char *pkt_ptr; /* packet buffer */
#endif /* _LDPE_H_ */
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