usr/src/sys/netiso/iso_snpac.h

/***********************************************************
                Copyright IBM Corporation 1987

                      All Rights Reserved

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of IBM not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.

IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
IBM BE LIABLE FOR ANY SPECIAL, 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.

******************************************************************/

/*
 * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
 */
/*      @(#)iso_snpac.h 7.3 (Berkeley) %G% */
#define MAX_SNPALEN             8                       /* curiously equal to sizeof x.121 (
                                                                                plus 1 for nibble len) addr */
struct snpa_req {
        struct iso_addr sr_isoa;                /* nsap address */
        u_char                  sr_len;                 /* length of snpa */
        u_char                  sr_snpa[MAX_SNPALEN];   /* snpa associated
                                                                                                with nsap address */
        u_char                  sr_flags;               /* true if entry is valid */
        u_short                 sr_ht;                  /* holding time */
};

/*
 *      Structure of the SNPA cache
 */
struct snpa_cache {
        struct snpa_req sc_sr;
#define sc_nsap         sc_sr.sr_isoa           /* this could be a NET if entry is
                                                                                        for an IS */
#define sc_len          sc_sr.sr_len
#define sc_snpa         sc_sr.sr_snpa
#define sc_ht           sc_sr.sr_ht
#define sc_flags        sc_sr.sr_flags
        struct ifnet    *sc_ifp;
#define SNPA_VALID              0x01
#define SNPA_ES                 0x02
#define SNPA_IS                 0x04
#define SNPA_PERM               0x10

        /* redirects only */
        struct iso_addr sc_da;          /* DA from RD */
        struct rtentry *sc_rt;
};

struct systype_req {
        short   sr_holdt;               /* holding timer */
        short   sr_configt;             /* configuration timer */
        char    sr_type;                /* SNPA_ES or SNPA_IS */
};

#define SIOCSSTYPE      _IOW('a', 39, struct systype_req) /* set system type */
#define SIOCGSTYPE      _IOW('a', 40, struct systype_req) /* set system type */

#ifdef  KERNEL
struct snpa_cache *snpac_look(/* struct iso_addr *isoa */);
#endif  KERNEL