/* $Id: if_sana.h,v 1.14 1993/11/06 23:39:15 ppessi Exp $
 *
 * Copyright (c) 1993 AmiTCP/IP Group, <amitcp-group@hut.fi>,
 *                    Helsinki University of Technology, Finland.
 *                    All rights reserved.
 *
 * if_sana.h --- Sana-II Interface 
 *
 * Created      : Thu Feb 11 15:57:16 1993 ppessi
 * Last modified: Tue Nov  2 07:18:17 1993 ppessi
 *
 * HISTORY
 * $Log: if_sana.h,v $
 * Revision 1.14  1993/11/06  23:39:15  ppessi
 * Added ss_eventsent to record sent event requests.
 *
 * Revision 1.13  1993/08/04  22:14:27  ppessi
 * Restored sockaddr_sana2
 *
 * Revision 1.12  1993/08/01  19:31:48  ppessi
 * Defined prefix "networks/" for SANA-II device names.
 * Moved sockaddr_sana2 structure definition to public header net/if.h
 *
 * Revision 1.11  1993/06/04  11:16:15  jraja
 * Fixes for first public release.
 *
 * Revision 1.10  1993/05/16  21:09:43  ppessi
 * RCS version changed.
 *
 * Revision 1.9  1993/05/14  15:54:47  ppessi
 * Minor prototype fixes.
 *
 * Revision 1.8  93/05/04  10:54:02  10:54:02  ppessi (Pekka Pessi)
 * Sanitized soft_sanac structure
 * 
 * Revision 1.7  93/04/19  02:12:36  02:12:36  ppessi (Pekka Pessi)
 * Minor fixes for ARP support.
 * Now also supports sockaddr_sana2 interface (AF_UNSPEC).
 * 
 * Revision 1.6  93/04/11  22:15:54  22:15:54  jraja (Jarno Tapio Rajahalme)
 * Changed first argument of the sana_output back to ifnet *.
 * 
 * Revision 1.5  93/03/10  21:15:10  21:15:10  ppessi (Pekka Pessi)
 * Includes arp prototypes
 * 
 * Revision 1.4  93/03/05  03:12:25  03:12:25  ppessi (Pekka Pessi)
 * Compiles with SASC. Initial test version
 * 
 * Revision 1.3  93/02/28  22:34:12  22:34:12  ppessi (Pekka Pessi)
 * Revised with jraja. 
 * 
 */

#ifndef IF_SANA_H
#define IF_SANA_H

#ifndef DEVICES_SANA_H
#include <devices/sana2.h>
#endif

#ifndef IF_ARP_H
#include <net/if_arp.h>
#endif

/* A prefix added to the SANA-II device name if needed */
#define NAME_PREFIX "networks/"

/*
 * Our Special SANA-II request
 */
struct IOIPReq {
  struct IOSana2Req  ioip_s2;	
#define ioip_ReplyPort  ioip_s2.ios2_Req.io_Message.mn_ReplyPort
#define ioip_Command ioip_s2.ios2_Req.io_Command
#define ioip_Error   ioip_s2.ios2_Req.io_Error
  struct sana_softc *ioip_if;	      /* pointer to network interface */
                     /* request dispatch routine */
  void             (*ioip_dispatch)(struct sana_softc *, struct IOIPReq *); 
  struct mbuf       *ioip_reserved;   /* reserved for packet */
  struct mbuf       *ioip_packet;     /* packet */
  struct IOIPReq    *ioip_next;	      /* allocation queue */
};

/*
 * A socket address for a generic SANA-II host
 */
#define MAXADDRSANA 16

struct sockaddr_sana2 {
  u_char  ss2_len;
  u_char  ss2_family;
  u_long  ss2_type;
  u_char  ss2_host[MAXADDRSANA];
};

/*
 * Interface descriptor
 *	NOTE: most of the code outside will believe this to be simply
 *	a "struct ifnet". The other information is, on the other hand,
 *	our own business.
 */
struct sana_softc {
  struct ifnet    ss_if;	      /* network-visible interface */
  struct in_addr  ss_ipaddr;	      /* copy of ip address */
  ULONG           ss_hwtype;	      /* wiretype */
  UBYTE           ss_hwaddr[MAXADDRSANA]; /* General hardware address */
  struct Device  *ss_dev;	      /* pointer to device */
  struct Unit    *ss_unit;	      /* pointer to unit */
  VOID           *ss_bufmgnt;	      /* magic cookie for buffer management */
  UWORD		  ss_reqno;	      /* # of requests to allocate */
  struct IOIPReq *ss_reqs;	      /* allocated requests */
  struct MinList  ss_freereq;	      /* free requests */
#if	INET
  struct {
    UWORD reqno;	      /* for listening ip packets */
    UWORD sent;
    ULONG type;
  } ss_ip;
  struct {			/* for ARP */
    UWORD reqno;	      
    UWORD sent;
    ULONG type;			/* ARP packet type */
    ULONG hrd;			/* ARP header type */
    struct arptable *table;	/* ARP/IP table */
  } ss_arp;
#endif	/* INET */
#if	ISO
  UWORD           ss_isoreqno;	      /* for iso */
  UWORD           ss_isosent;
  ULONG           ss_isotype;
#endif	/* ISO */
#if	CCITT
  UWORD           ss_ccittreqno;      /* for ccitt */
  UWORD           ss_ccittsent;
  ULONG           ss_ccitttype;
#endif	/* CCITT */
#if	NS
  UWORD           ss_nsreqno;	      /* for ns */
  UWORD           ss_nssent;	
  ULONG           ss_nstype;
#endif	/* NS */
  UWORD           ss_rawreqno;	      /* for raw packets */
  UWORD           ss_rawsent;
  UWORD           ss_eventsent;	      /* sent event requests */
  struct sana_softc *ss_next;
  char	          ss_name[IFNAMSIZ];  /* name lives here */
};

#ifdef KERNEL
/*
 * Global functions defined in if_sana.c
 */
int sana_output(struct ifnet *ifp, struct mbuf *m0,
			struct sockaddr *dst, struct rtentry *rt);
int sana_ioctl(register struct ifnet *ifp, int cmd, caddr_t data);
/* queue for sana network interfaces */
extern struct sana_softc *ssq;
#endif
#endif /* of IF_SANA_H */