/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* bos720 src/bos/kernext/inet/udp_var.h 1.17                             */
/*                                                                        */
/* Licensed Materials - Property of IBM                                   */
/*                                                                        */
/* COPYRIGHT International Business Machines Corp. 1988,1993              */
/* All Rights Reserved                                                    */
/*                                                                        */
/* US Government Users Restricted Rights - Use, duplication or            */
/* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.      */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */
/* @(#)58       1.17  src/bos/kernext/inet/udp_var.h, sockinc, bos720 8/29/07 15:13:11 */
/*
 *   COMPONENT_NAME: SYSXINET
 *
 *   FUNCTIONS: 
 *
 *   ORIGINS: 26,27,85
 *
 *
 *   (C) COPYRIGHT International Business Machines Corp. 1988,1993
 *   All Rights Reserved
 *   Licensed Materials - Property of IBM
 *   US Government Users Restricted Rights - Use, duplication or
 *   disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */

/*
 * (c) Copyright 1990, 1991, 1992, 1993 OPEN SOFTWARE FOUNDATION, INC. 
 * ALL RIGHTS RESERVED 
 */
/*
 * OSF/1 1.2
 */
/*
 * Copyright (C) 1988,1989 Encore Computer Corporation.  All Rights Reserved
 *
 * Property of Encore Computer Corporation.
 * This software is made available solely pursuant to the terms of
 * a software license agreement which governs its use. Unauthorized
 * duplication, distribution or sale are strictly prohibited.
 *
 */
/*
 * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted provided
 * that: (1) source distributions retain this entire copyright notice and
 * comment, and (2) distributions including binaries display the following
 * acknowledgement:  ``This product includes software developed by the
 * University of California, Berkeley and its contributors'' in the
 * documentation or other materials provided with the distribution and in
 * all advertising materials mentioning features or use of this software.
 * 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *	Base:	udp_var.h	7.5 (Berkeley) 9/20/89
 *	Merged:	udp_var.h	7.7 (Berkeley) 6/28/90
 */

/*
 * UDP kernel structures and variables.
 */
struct	udpiphdr {
	struct 	ipovly ui_i;		/* overlaid ip structure */
	struct	udphdr ui_u;		/* udp header */
};
#ifndef __64BIT__
#define	ui_next		ui_i.ih_next
#define	ui_prev		ui_i.ih_prev
#endif /* __64BIT__ */
#define	ui_x1		ui_i.ih_x1
#define	ui_pr		ui_i.ih_pr
#define	ui_len		ui_i.ih_len
#define	ui_src		ui_i.ih_src
#define	ui_dst		ui_i.ih_dst
#define	ui_sport	ui_u.uh_sport
#define	ui_dport	ui_u.uh_dport
#define	ui_ulen		ui_u.uh_ulen
#define	ui_sum		ui_u.uh_sum

struct	udpstat {
				/* input statistics: */
	long	udps_ipackets;		/* total input packets */
	int	udps_hdrops;		/* packet shorter than header */
	int	udps_badsum;		/* checksum error */
	int	udps_badlen;		/* data length larger than packet */
	int	udps_noport;		/* no socket on port */
	int	udps_noportbcast;	/* of above, arrived as broadcast */
	int	udps_fullsock;		/* not delivered, input socket full */
	int	udpps_pcbcachemiss;	/* input packets missing pcb cache */
				/* output statistics: */
	long	udps_opackets;		/* total output packets */
#if	defined(_KERNEL) && LOCK_NETSTATS
	simple_lock_data_t udps_lock;		/* statistics lock */
#endif
};

/* distributed udp statistics structure */

struct	dist_udpstat {
				/* input statistics: */
	int	udps_ipackets;		/* total input packets */
	int	udps_hdrops;		/* packet shorter than header */
	int	udps_badsum;		/* checksum error */
	int	udps_badlen;		/* data length larger than packet */
	int	udps_noport;		/* no socket on port */
	int	udps_noportbcast;	/* of above, arrived as broadcast */
	int	udps_fullsock;		/* not delivered, input socket full */
	int	udpps_pcbcachemiss;	/* input packets missing pcb cache */
				/* output statistics: */
	int	udps_opackets;		/* total output packets */
#if	defined(_KERNEL) && LOCK_NETSTATS
	simple_lock_data_t udps_lock;		/* statistics lock */
#endif
	char    dummy[((sizeof(struct udpstat) < IP_CACHE_LINE_SIZE) ?
			IP_CACHE_LINE_SIZE - sizeof(struct udpstat) :
	  IP_CACHE_LINE_SIZE - (sizeof(struct udpstat) % IP_CACHE_LINE_SIZE))];
};

#define	UDP_TTL		30	/* default time to live for UDP packets */

#ifdef	_KERNEL
extern	struct	inpcb udb;
extern	struct	udpstat udpstat;
extern	struct	dist_udpstat *dist_udpstat[];

#define UDP_EPHEMERAL_LOW_DFLT 32768
#define UDP_EPHEMERAL_HIGH_DFLT 65535
#endif