text: /*-
   * Copyright (c) 1995, Mike Mitchell
   * 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.
   *
   *	@(#)ipx.h
   *
   * $FreeBSD: src/sys/netipx/ipx.h,v 1.21 2005/05/27 12:25:42 rwatson Exp $
   */
  
  #ifndef _NETIPX_IPX_H_
  #define	_NETIPX_IPX_H_
  
  /*
   * Constants and Structures
   */
  
  /*
   * Protocols
   */
  #define IPXPROTO_UNKWN		0	/* Unknown */
  #define IPXPROTO_RI		1	/* RIP Routing Information */
  #define IPXPROTO_PXP		4	/* IPX Packet Exchange Protocol */
  #define IPXPROTO_SPX		5	/* SPX Sequenced Packet */
  #define IPXPROTO_NCP		17	/* NCP NetWare Core */
  #define IPXPROTO_NETBIOS	20	/* Propagated Packet */
  #define IPXPROTO_RAW		255	/* Placemarker*/
  #define IPXPROTO_MAX		256	/* Placemarker*/
  
  /*
   * Port/Socket numbers: network standard functions
   */
  
  #define IPXPORT_RI		1	/* NS RIP Routing Information */
  #define IPXPORT_ECHO		2	/* NS Echo */
  #define IPXPORT_RE		3	/* NS Router Error */
  #define IPXPORT_NCP		0x0451	/* NW NCP Core Protocol */
  #define IPXPORT_SAP		0x0452	/* NW SAP Service Advertising */
  #define IPXPORT_RIP		0x0453	/* NW RIP Routing Information */
  #define IPXPORT_NETBIOS		0x0455	/* NW NetBIOS */
  #define IPXPORT_DIAGS		0x0456	/* NW Diagnostics */
  /*
   * Ports < IPXPORT_RESERVED are reserved for privileged
   */
  #define IPXPORT_RESERVED	0x4000
  /*
   * Ports > IPXPORT_WELLKNOWN are reserved for privileged
   * processes (e.g. root).
   */
  #define IPXPORT_WELLKNOWN	0x6000
  
  /* flags passed to ipx_outputfl as last parameter */
  
  #define	IPX_FORWARDING		0x1	/* most of ipx header exists */
  #define	IPX_ROUTETOIF		0x10	/* same as SO_DONTROUTE */
  #define	IPX_ALLOWBROADCAST	SO_BROADCAST	/* can send broadcast packets */
  
  #define IPX_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_IPXIP_ROUTE		5
  #define SO_SEQNO		6
  #define	SO_ALL_PACKETS		7
  #define SO_MTU			8
  #define SO_IPXTUN_ROUTE		9
  #define SO_IPX_CHECKSUM		10
  
  /*
   * IPX addressing
   */
  union ipx_host {
  	u_char	c_host[6];
  	u_short	s_host[3];
  };
  
  union ipx_net {
  	u_char	c_net[4];
  	u_short	s_net[2];
  };
  
  union ipx_net_u {
  	union	ipx_net	net_e;
  	u_long		long_e;
  };
  
  struct ipx_addr {
  	union ipx_net	x_net;
  	union ipx_host	x_host;
  	u_short		x_port;
  };
  
  /*
   * Socket address
   */
  struct sockaddr_ipx {
  	u_char		sipx_len;
  	u_char		sipx_family;
  	struct ipx_addr	sipx_addr;
  	char		sipx_zero[2];
  };
  #define sipx_port sipx_addr.x_port
  
  /*
   * Definitions for IPX Internetwork Packet Exchange Protocol
   */
  struct ipx {
  	u_short	ipx_sum;	/* Checksum */
  	u_short	ipx_len;	/* Length, in bytes, including header */
  	u_char	ipx_tc;		/* Transport Control (i.e. hop count) */
  	u_char	ipx_pt;		/* Packet Type (i.e. level 2 protocol) */
  	struct ipx_addr	ipx_dna;	/* Destination Network Address */
  	struct ipx_addr	ipx_sna;	/* Source Network Address */
  } __packed;
  
  #define ipx_neteqnn(a,b) \
  	(((a).s_net[0] == (b).s_net[0]) && ((a).s_net[1] == (b).s_net[1]))
  #define ipx_neteq(a,b) ipx_neteqnn((a).x_net, (b).x_net)
  #define satoipx_addr(sa) (((struct sockaddr_ipx *)&(sa))->sipx_addr)
  #define ipx_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 ipx_hosteq(s,t) (ipx_hosteqnh((s).x_host,(t).x_host))
  #define ipx_nullnet(x) (((x).x_net.s_net[0]==0) && ((x).x_net.s_net[1]==0))
  #define ipx_nullhost(x) (((x).x_host.s_host[0] == 0) && \
  	((x).x_host.s_host[1] == 0) && ((x).x_host.s_host[2] == 0))
  #define ipx_wildnet(x) (((x).x_net.s_net[0] == 0xffff) && \
  	((x).x_net.s_net[1] == 0xffff))
  #define ipx_wildhost(x) (((x).x_host.s_host[0] == 0xffff) && \
  	((x).x_host.s_host[1] == 0xffff) && ((x).x_host.s_host[2] == 0xffff))
  
  #include <sys/cdefs.h>
  
  __BEGIN_DECLS
  struct	ipx_addr ipx_addr(const char *);
  char	*ipx_ntoa(struct ipx_addr);
  __END_DECLS
  
  #endif /* !_NETIPX_IPX_H_ */
  