* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.

/* $NetBSD: udp6_var.h,v 1.31 2022/10/28 05:18:39 ozaki-r Exp $ */
/* $KAME: udp6_var.h,v 1.11 2000/06/05 00:14:31 itojun Exp $ */

/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
*/

/*
* Copyright (c) 1982, 1986, 1989, 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. 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.
*
* @(#)udp_var.h 8.1 (Berkeley) 6/10/93
*/

#ifndef _NETINET6_UDP6_VAR_H_
#define _NETINET6_UDP6_VAR_H_

/*
* UDP Kernel structures and variables.
*/

#define UDP6_STAT_IPACKETS 0 /* total input packets */
#define UDP6_STAT_HDROPS 1 /* packet shorter than header */
#define UDP6_STAT_BADSUM 2 /* checksum error */
#define UDP6_STAT_NOSUM 3 /* no checksum */
#define UDP6_STAT_BADLEN 4 /* data length larger than packet */
#define UDP6_STAT_NOPORT 5 /* no socket on port */
#define UDP6_STAT_NOPORTMCAST 6 /* of above, arrived as multicast */
#define UDP6_STAT_FULLSOCK 7 /* not delivered, input socket full */
#define UDP6_STAT_PCBCACHEMISS 8 /* input packets missing pcb cache */
#define UDP6_STAT_OPACKETS 9 /* total output packets */

#define UDP6_NSTATS 10

/*
* Names for UDP6 sysctl objects
*/
#define UDP6CTL_SENDSPACE 1 /* default send buffer */
#define UDP6CTL_RECVSPACE 2 /* default recv buffer */
#define UDP6CTL_LOOPBACKCKSUM 3 /* do UDP checksum on loopback? */
#define UDP6CTL_STATS 4 /* udp6 statistics */

#ifdef _KERNEL

extern const struct pr_usrreqs udp6_usrreqs;

void *udp6_ctlinput(int, const struct sockaddr *, void *);
int udp6_ctloutput(int, struct socket *, struct sockopt *);
void udp6_init(void);
int udp6_input(struct mbuf **, int *, int);
int udp6_output(struct inpcb *, struct mbuf *, struct sockaddr_in6 *,
struct mbuf *, struct lwp *);
int udp6_sysctl(int *, u_int, void *, size_t *, void *, size_t);
int udp6_usrreq(struct socket *, int, struct mbuf *, struct mbuf *,
struct mbuf *, struct lwp *);
int udp6_realinput(int, struct sockaddr_in6 *, struct sockaddr_in6 *,
struct mbuf **, int);
int udp6_input_checksum(struct mbuf *, const struct udphdr *, int, int);

void udp6_statinc(u_int);
#endif /* _KERNEL */

#endif /* !_NETINET6_UDP6_VAR_H_ */