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udp_var.h revision 1.35
      1  1.35   thorpej /*	$NetBSD: udp_var.h,v 1.35 2008/04/12 05:58:22 thorpej Exp $	*/
      2   1.7       cgd 
      3   1.1       cgd /*
      4   1.6   mycroft  * Copyright (c) 1982, 1986, 1989, 1993
      5   1.6   mycroft  *	The Regents of the University of California.  All rights reserved.
      6   1.1       cgd  *
      7   1.1       cgd  * Redistribution and use in source and binary forms, with or without
      8   1.1       cgd  * modification, are permitted provided that the following conditions
      9   1.1       cgd  * are met:
     10   1.1       cgd  * 1. Redistributions of source code must retain the above copyright
     11   1.1       cgd  *    notice, this list of conditions and the following disclaimer.
     12   1.1       cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13   1.1       cgd  *    notice, this list of conditions and the following disclaimer in the
     14   1.1       cgd  *    documentation and/or other materials provided with the distribution.
     15  1.22       agc  * 3. Neither the name of the University nor the names of its contributors
     16   1.1       cgd  *    may be used to endorse or promote products derived from this software
     17   1.1       cgd  *    without specific prior written permission.
     18   1.1       cgd  *
     19   1.1       cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20   1.1       cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21   1.1       cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22   1.1       cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23   1.1       cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24   1.1       cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25   1.1       cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26   1.1       cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27   1.1       cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28   1.1       cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29   1.1       cgd  * SUCH DAMAGE.
     30   1.1       cgd  *
     31   1.7       cgd  *	@(#)udp_var.h	8.1 (Berkeley) 6/10/93
     32   1.1       cgd  */
     33   1.1       cgd 
     34  1.15     perry #ifndef _NETINET_UDP_VAR_H_
     35  1.15     perry #define _NETINET_UDP_VAR_H_
     36  1.15     perry 
     37   1.1       cgd /*
     38   1.1       cgd  * UDP kernel structures and variables.
     39   1.1       cgd  */
     40   1.1       cgd struct	udpiphdr {
     41   1.1       cgd 	struct 	ipovly ui_i;		/* overlaid ip structure */
     42   1.1       cgd 	struct	udphdr ui_u;		/* udp header */
     43  1.33     perry } __packed;
     44   1.1       cgd #define	ui_x1		ui_i.ih_x1
     45   1.1       cgd #define	ui_pr		ui_i.ih_pr
     46   1.1       cgd #define	ui_len		ui_i.ih_len
     47   1.1       cgd #define	ui_src		ui_i.ih_src
     48   1.1       cgd #define	ui_dst		ui_i.ih_dst
     49   1.1       cgd #define	ui_sport	ui_u.uh_sport
     50   1.1       cgd #define	ui_dport	ui_u.uh_dport
     51   1.1       cgd #define	ui_ulen		ui_u.uh_ulen
     52   1.1       cgd #define	ui_sum		ui_u.uh_sum
     53   1.1       cgd 
     54  1.34   thorpej /*
     55  1.34   thorpej  * UDP statistics.
     56  1.34   thorpej  * Each counter is an unsigned 64-bit value.
     57  1.34   thorpej  */
     58  1.34   thorpej #define	UDP_STAT_IPACKETS	0	/* total input packets */
     59  1.34   thorpej #define	UDP_STAT_HDROPS		1	/* packet shorter than header */
     60  1.34   thorpej #define	UDP_STAT_BADSUM		2	/* checksum error */
     61  1.34   thorpej #define	UDP_STAT_BADLEN		3	/* data length larger than packet */
     62  1.34   thorpej #define	UDP_STAT_NOPORT		4	/* no socket on port */
     63  1.34   thorpej #define	UDP_STAT_NOPORTBCAST	5	/* of above, arrived as broadcast */
     64  1.34   thorpej #define	UDP_STAT_FULLSOCK	6	/* not delivered, input socket full */
     65  1.34   thorpej #define	UDP_STAT_PCBHASHMISS	7	/* input packets missing PCB hash */
     66  1.34   thorpej #define	UDP_STAT_OPACKETS	8	/* total output packets */
     67  1.34   thorpej 
     68  1.34   thorpej #define	UDP_NSTATS		9
     69   1.1       cgd 
     70   1.6   mycroft /*
     71   1.6   mycroft  * Names for UDP sysctl objects
     72   1.6   mycroft  */
     73   1.6   mycroft #define	UDPCTL_CHECKSUM		1	/* checksum UDP packets */
     74  1.14   thorpej #define	UDPCTL_SENDSPACE	2	/* default send buffer */
     75  1.14   thorpej #define	UDPCTL_RECVSPACE	3	/* default recv buffer */
     76  1.25   thorpej #define	UDPCTL_LOOPBACKCKSUM	4	/* do UDP checksum on loopback */
     77  1.28      elad #define	UDPCTL_STATS		5	/* UDP statistics */
     78  1.28      elad #define	UDPCTL_MAXID		6
     79   1.6   mycroft 
     80   1.6   mycroft #define UDPCTL_NAMES { \
     81   1.6   mycroft 	{ 0, 0 }, \
     82   1.6   mycroft 	{ "checksum", CTLTYPE_INT }, \
     83  1.14   thorpej 	{ "sendspace", CTLTYPE_INT }, \
     84  1.14   thorpej 	{ "recvspace", CTLTYPE_INT }, \
     85  1.25   thorpej 	{ "do_loopback_cksum", CTLTYPE_INT }, \
     86  1.28      elad 	{ "stats", CTLTYPE_STRUCT }, \
     87   1.6   mycroft }
     88   1.1       cgd 
     89   1.8       jtc #ifdef _KERNEL
     90  1.18      matt extern	struct	inpcbtable udbtable;
     91   1.4   mycroft 
     92  1.32    dyoung void	 *udp_ctlinput(int, const struct sockaddr *, void *);
     93  1.27      manu int	 udp_ctloutput(int, struct socket *, int, int, struct mbuf **);
     94  1.24    itojun void	 udp_init(void);
     95  1.24    itojun void	 udp_input(struct mbuf *, ...);
     96  1.24    itojun int	 udp_output(struct mbuf *, ...);
     97  1.24    itojun int	 udp_sysctl(int *, u_int, void *, size_t *, void *, size_t);
     98  1.24    itojun int	 udp_usrreq(struct socket *,
     99  1.31  christos 	    int, struct mbuf *, struct mbuf *, struct mbuf *, struct lwp *);
    100  1.26      yamt 
    101  1.35   thorpej int	udp_input_checksum(int af, struct mbuf *, const struct udphdr *, int,
    102  1.26      yamt 	    int);
    103  1.35   thorpej void	udp_statinc(u_int);
    104  1.35   thorpej #endif /* _KERNEL */
    105  1.15     perry 
    106  1.30      elad #endif /* !_NETINET_UDP_VAR_H_ */
    107