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udp_var.h revision 1.15.12.1
      1 /*	$NetBSD: udp_var.h,v 1.15.12.1 1999/06/28 06:37:02 itojun Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the project nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Copyright (c) 1982, 1986, 1989, 1993
     34  *	The Regents of the University of California.  All rights reserved.
     35  *
     36  * Redistribution and use in source and binary forms, with or without
     37  * modification, are permitted provided that the following conditions
     38  * are met:
     39  * 1. Redistributions of source code must retain the above copyright
     40  *    notice, this list of conditions and the following disclaimer.
     41  * 2. Redistributions in binary form must reproduce the above copyright
     42  *    notice, this list of conditions and the following disclaimer in the
     43  *    documentation and/or other materials provided with the distribution.
     44  * 3. All advertising materials mentioning features or use of this software
     45  *    must display the following acknowledgement:
     46  *	This product includes software developed by the University of
     47  *	California, Berkeley and its contributors.
     48  * 4. Neither the name of the University nor the names of its contributors
     49  *    may be used to endorse or promote products derived from this software
     50  *    without specific prior written permission.
     51  *
     52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     62  * SUCH DAMAGE.
     63  *
     64  *	@(#)udp_var.h	8.1 (Berkeley) 6/10/93
     65  */
     66 
     67 #ifndef _NETINET_UDP_VAR_H_
     68 #define _NETINET_UDP_VAR_H_
     69 
     70 /*
     71  * UDP kernel structures and variables.
     72  */
     73 struct	udpiphdr {
     74 	struct 	ipovly ui_i;		/* overlaid ip structure */
     75 	struct	udphdr ui_u;		/* udp header */
     76 };
     77 #define	ui_x1		ui_i.ih_x1
     78 #define	ui_pr		ui_i.ih_pr
     79 #define	ui_len		ui_i.ih_len
     80 #define	ui_src		ui_i.ih_src
     81 #define	ui_dst		ui_i.ih_dst
     82 #define	ui_sport	ui_u.uh_sport
     83 #define	ui_dport	ui_u.uh_dport
     84 #define	ui_ulen		ui_u.uh_ulen
     85 #define	ui_sum		ui_u.uh_sum
     86 
     87 struct	udpstat {
     88 				/* input statistics: */
     89 	u_long	udps_ipackets;		/* total input packets */
     90 	u_long	udps_hdrops;		/* packet shorter than header */
     91 	u_long	udps_badsum;		/* checksum error */
     92 	u_long	udps_badlen;		/* data length larger than packet */
     93 	u_long	udps_noport;		/* no socket on port */
     94 	u_long	udps_noportbcast;	/* of above, arrived as broadcast */
     95 	u_long	udps_fullsock;		/* not delivered, input socket full */
     96 	u_long	udps_pcbhashmiss;	/* input packets missing pcb hash */
     97 				/* output statistics: */
     98 	u_long	udps_opackets;		/* total output packets */
     99 };
    100 
    101 /*
    102  * Names for UDP sysctl objects
    103  */
    104 #define	UDPCTL_CHECKSUM		1	/* checksum UDP packets */
    105 #define	UDPCTL_SENDSPACE	2	/* default send buffer */
    106 #define	UDPCTL_RECVSPACE	3	/* default recv buffer */
    107 #define	UDPCTL_MAXID		4
    108 
    109 #define UDPCTL_NAMES { \
    110 	{ 0, 0 }, \
    111 	{ "checksum", CTLTYPE_INT }, \
    112 	{ "sendspace", CTLTYPE_INT }, \
    113 	{ "recvspace", CTLTYPE_INT }, \
    114 }
    115 
    116 #ifdef _KERNEL
    117 struct	inpcbtable udbtable;
    118 struct	udpstat udpstat;
    119 
    120 void	 *udp_ctlinput __P((int, struct sockaddr *, void *));
    121 void	 udp_init __P((void));
    122 void	 udp_input __P((struct mbuf *, ...));
    123 int	 udp_output __P((struct mbuf *, ...));
    124 int	 udp_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
    125 int	 udp_usrreq __P((struct socket *,
    126 	    int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *));
    127 #endif
    128 
    129 #endif /* _NETINET_UDP_VAR_H_ */
    130