/* * Copyright (C) 1998 WIDE Project. * All rights reserved. *  * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. Neither the name of the project nor the names of its contributors *    may be used to endorse or promote products derived from this software *    without specific prior written permission. *  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */struct rpstat {  u_quad_t rps_connretry;	/* number of retries of connection setup */  u_quad_t established;		/* total number of established connections */  u_quad_t opensent;		/* number of OPEN msgs sent */  u_quad_t openrcvd;		/* number of OPEN msgs received */  u_quad_t updatesent;		/* number of UPDATE msgs sent */  u_quad_t updatercvd;		/* number of UPDATE msgs received */  u_quad_t notifysent;		/* number of NOTIFY msgs sent */  u_quad_t notifyrcvd;		/* number of NOTIFY msgs received */  u_quad_t keepalivesent;	/* number of KEEPALIVE msgs sent */  u_quad_t keepalivercvd;	/* number of KEEPALIVE msgs received */  u_quad_t withdrawsent;	/* number of withdraws sent */  u_quad_t withdrawrcvd;	/* number of withdraws received */  time_t last_established;	/* stamp of the last establish time */  time_t last_closed;		/* stamp of the last closed time */  time_t max_established_period;	/* the longest period of peering */  time_t min_established_period;	/* the shortest period of peering */};#define BGPS_ESTABLISHED 1#define BGPS_OPENSENT 2#define BGPS_OPENRCVD 3#define BGPS_UPDATESENT 4#define BGPS_UPDATERCVD 5#define BGPS_NOTIFYSENT 6#define BGPS_NOTIFYRCVD 7#define BGPS_KEEPALIVESENT 8#define BGPS_KEEPALIVERCVD 9#define BGPS_WITHDRAWSENT 10#define BGPS_WITHDRAWRCVD 11#define BGPS_CLOSED 12/* XXX: we have to define this structure here since rpcb use it */struct filterset {	u_long deffilterflags;	struct filtinfo *filterin; /* input filter */	struct filtinfo *filterout; /* output filter */	struct filtinfo *restrictin; /* input restriction */	struct filtinfo *restrictout; /* output restriction */	/* statistics: */	u_int32_t filtered_indef; /* # of filtered incoming defaults */	u_int32_t filtered_outdef; /* # of filtered outgoing defaults */	/* # of filtered incoming routes by restriction: */	u_int32_t input_restrected; 	/* # of filtered outgoing routes by restriction: */	u_int32_t output_restrected;};struct rpcb {  struct  rpcb        *rp_next;  struct  rpcb        *rp_prev;  struct  sockaddr_in6 rp_addr;     /* socket address/port                 */  struct  in6_addr     rp_gaddr;    /* rtr's global address     (if known) */  struct  in6_addr     rp_laddr;    /* rtr's link-local address (if known) */  char		      *rp_descr;    /* description of the peer */  u_int32_t            rp_id;       /* Router ID, that the router told me  */  u_int16_t            rp_as;       /* Autonomous System number            */  u_int32_t	       rp_ebgp_as_prepends;/* # of iteration of prepended AS */  int                  rp_socket;  struct sockaddr_in6  rp_myaddr;   /* address of connection               */  struct sockaddr_in6  rp_lcladdr;  /* if specified, use it as the source */  struct ifinfo       *rp_ife;      /* interface                           */  u_int32_t            rp_prefer;   /* preference (net-order)              */  int                  rp_sfd[2];   /* parent/child pipe                   */  byte		       rp_inpkt[BGPMAXPACKETSIZE]; /* input buffer */  int		       rp_incc;	    /* watermark for the input buffer */  int		       rp_inputmode; /* header or data */  int		       rp_inlen; /* data length to be read */#define BGP_READ_HEADER 0#define BGP_READ_DATA   1  struct _task        *rp_connect_timer;    /* ConnectRetryTimer           */  struct _task        *rp_hold_timer;       /* HoldTimer                   */  struct _task        *rp_keepalive_timer;  /* KeepAliveTimer              */  byte                 rp_state;        /* Protocol State                  */  struct rt_entry     *rp_adj_ribs_in;  /* Imported RTEs via BGP message   */  struct rtproto      *rp_adj_ribs_out; /* Exporting RTEs of protocols     */  u_long               rp_mode;         /* info bit                        */  struct rpstat        rp_stat;         /* statistics                      */  struct filterset     rp_filterset;    /* filter list */#define                    BGPO_PASSIVE      0x01#define                    BGPO_IFSTATIC     0x02#define                    BGPO_IGP          0x04#define                    BGPO_RRCLIENT     0x08#define                    BGPO_ONLINK       0x10#define                    BGPO_IDSTATIC     0x20#define                    BGPO_NOSYNC       0x40#define			   BGPO_NEXTHOPSELF  0x80#define			   BGPO_EBGPSTATIC   0x0 /* XXX: currently, this is empty */#define			   BGPO_IBGPSTATIC  (BGPO_RRCLIENT|BGPO_NOSYNC|\					     BGPO_NEXTHOPSELF)};/* *   Interface information learned from the kernel or config file. *             (smaller) */struct ifinfo {  struct ifinfo       *ifi_next;  struct ifinfo       *ifi_prev;  struct if_nameindex *ifi_ifn;  struct in6_addr      ifi_laddr;  /* link-local      */  struct in6_addr      ifi_gaddr;  /* global          */  struct rt_entry     *ifi_rte;    /* I/F direct RTEs */  int                  ifi_flags;  /* I/F flags */#define               RTPROTO_NONE  0#define               RTPROTO_IF    1#define               RTPROTO_RIP   2#define               RTPROTO_OSPF  3#define               RTPROTO_BGP   4#define               RTPROTO_AGGR  5#define               RTPROTO_MAX   5  caddr_t              ifi_rtpinfo[RTPROTO_MAX+1];};struct ifinfo *find_if_by_index  __P((u_int));struct ifinfo *find_if_by_name   __P((char *));struct ifinfo *find_if_by_addr   __P((struct in6_addr *));#define MALLOC(p, type) { if (((p) = ((type *)malloc(sizeof(type)))) == NULL)\			    fatalx("malloc");\			  memset((p), 0, sizeof(type));}struct rtproto {  struct rtproto *rtp_next;  struct rtproto *rtp_prev;  char            rtp_type;  union {    struct ifinfo   *rtpu_if;    struct rpcb     *rtpu_bgp;    struct ripif    *rtpu_rip;    struct rpcb     *rtpu_ospf;  } rtp_rtpu;#define rtp_if   rtp_rtpu.rtpu_if#define rtp_bgp  rtp_rtpu.rtpu_bgp#define rtp_rip  rtp_rtpu.rtpu_rip#define rtp_ospf rtp_rtpu.rtpu_ospf};void             ifconfig     __P((void));void             loconfig     __P((char *));u_int32_t        get_32id     __P((void));/* *    search */struct rpcb     *rpcblookup   __P((struct rpcb *, u_int32_t));struct rt_entry *find_rte     __P((struct rt_entry *, struct rt_entry *));struct rtproto  *find_rtp     __P((struct rtproto  *, struct rtproto *));/* * nexthop resolution */int set_nexthop __P((struct in6_addr *, struct rt_entry *));/* * Internal structure to update or withdraw BGP4+ routes. * This is necessary since the list starting at bgb might be modified * during the advertisement. */struct bgpcblist {	struct bgpcblist *next;	struct rpcb *bnp;};struct bgpcblist *make_bgpcb_list __P(());void free_bgpcb_list __P(());