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/* $OpenBSD: ns.h,v 1.4 2002/03/14 01:27:13 millert Exp $ */
/* $NetBSD: ns.h,v 1.8 1996/02/13 22:13:51 christos Exp $ */
/*
* Copyright (c) 1984, 1985, 1986, 1987, 1993
* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
* @(#)ns.h 8.1 (Berkeley) 6/10/93
*/
/*
* Constants and Structures defined by the Xerox Network Software
* per "Internet Transport Protocols", XSIS 028112, December 1981
*/
/*
* Protocols
*/
#define NSPROTO_RI 1 /* Routing Information */
#define NSPROTO_ECHO 2 /* Echo Protocol */
#define NSPROTO_ERROR 3 /* Error Protocol */
#define NSPROTO_PE 4 /* Packet Exchange */
#define NSPROTO_SPP 5 /* Sequenced Packet */
#define NSPROTO_RAW 255 /* Placemarker*/
#define NSPROTO_MAX 256 /* Placemarker*/
/*
* Port/Socket numbers: network standard functions
*/
#define NSPORT_RI 1 /* Routing Information */
#define NSPORT_ECHO 2 /* Echo */
#define NSPORT_RE 3 /* Router Error */
/*
* Ports < NSPORT_RESERVED are reserved for privileged
* processes (e.g. root).
*/
#define NSPORT_RESERVED 3000
/* flags passed to ns_output as last parameter */
#define NS_FORWARDING 0x1 /* most of idp header exists */
#define NS_ROUTETOIF 0x10 /* same as SO_DONTROUTE */
#define NS_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */
#define NS_MAXHOPS 15
/* flags passed to get/set socket option */
#define SO_HEADERS_ON_INPUT 1
#define SO_HEADERS_ON_OUTPUT 2
#define SO_DEFAULT_HEADERS 3
#define SO_LAST_HEADER 4
#define SO_NSIP_ROUTE 5
#define SO_SEQNO 6
#define SO_ALL_PACKETS 7
#define SO_MTU 8
/*
* NS addressing
*/
union ns_host {
u_char c_host[6];
u_short s_host[3];
};
union ns_net {
u_char c_net[4];
u_short s_net[2];
};
union ns_net_u {
union ns_net net_e;
u_long long_e;
};
struct ns_addr {
union ns_net x_net;
union ns_host x_host;
u_short x_port;
};
/*
* Socket address, Xerox style
*/
struct sockaddr_ns {
u_char sns_len;
u_char sns_family;
struct ns_addr sns_addr;
char sns_zero[2];
};
#define sns_port sns_addr.x_port
#ifdef vax
#define ns_netof(a) (*(long *) & ((a).x_net)) /* XXX - not needed */
#endif
#define ns_neteqnn(a,b) (((a).s_net[0]==(b).s_net[0]) && \
((a).s_net[1]==(b).s_net[1]))
#define ns_neteq(a,b) ns_neteqnn((a).x_net, (b).x_net)
#define satons_addr(sa) (((struct sockaddr_ns *)&(sa))->sns_addr)
#define ns_hosteqnh(s,t) ((s).s_host[0] == (t).s_host[0] && \
(s).s_host[1] == (t).s_host[1] && (s).s_host[2] == (t).s_host[2])
#define ns_hosteq(s,t) (ns_hosteqnh((s).x_host,(t).x_host))
#define ns_nullhost(x) (((x).x_host.s_host[0]==0) && \
((x).x_host.s_host[1]==0) && ((x).x_host.s_host[2]==0))
#ifdef _KERNEL
extern struct domain nsdomain;
union ns_host ns_thishost;
union ns_host ns_zerohost;
union ns_host ns_broadhost;
union ns_net ns_zeronet;
union ns_net ns_broadnet;
#define satosns(sa) ((struct sockaddr_ns *)(sa))
#define snstosa(sns) ((struct sockaddr *)(sns))
#else
#include <sys/cdefs.h>
__BEGIN_DECLS
extern struct ns_addr ns_addr(const char *);
extern char *ns_ntoa(struct ns_addr);
__END_DECLS
#endif
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