Home | History | Annotate | Line # | Download | only in netinet6
ip6protosw.h revision 1.13 
      1 /*	$NetBSD: ip6protosw.h,v 1.13 2003/08/07 16:33:29 agc Exp $	*/
      2 /*	$KAME: ip6protosw.h,v 1.22 2001/02/08 18:02:08 itojun Exp $	*/
      3 
      4 /*
      5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. Neither the name of the project nor the names of its contributors
     17  *    may be used to endorse or promote products derived from this software
     18  *    without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     30  * SUCH DAMAGE.
     31  *
     32  */
     33 
     34 /*	BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp	*/
     35 
     36 /*-
     37  * Copyright (c) 1982, 1986, 1993
     38  *	The Regents of the University of California.  All rights reserved.
     39  *
     40  * Redistribution and use in source and binary forms, with or without
     41  * modification, are permitted provided that the following conditions
     42  * are met:
     43  * 1. Redistributions of source code must retain the above copyright
     44  *    notice, this list of conditions and the following disclaimer.
     45  * 2. Redistributions in binary form must reproduce the above copyright
     46  *    notice, this list of conditions and the following disclaimer in the
     47  *    documentation and/or other materials provided with the distribution.
     48  * 3. 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  *	@(#)protosw.h	8.1 (Berkeley) 6/2/93
     65  */
     66 
     67 #ifndef _NETINET6_IP6PROTOSW_H_
     68 #define _NETINET6_IP6PROTOSW_H_
     69 
     70 /*
     71  * Protocol switch table for IPv6.
     72  * All other definitions should refer to sys/protosw.h
     73  */
     74 
     75 struct mbuf;
     76 struct sockaddr;
     77 struct socket;
     78 struct domain;
     79 struct proc;
     80 struct ip6_hdr;
     81 struct icmp6_hdr;
     82 struct in6_addr;
     83 
     84 /*
     85  * argument type for the last arg of pr_ctlinput().
     86  * should be consulted only with AF_INET6 family.
     87  *
     88  * IPv6 ICMP IPv6 [exthdrs] finalhdr paylaod
     89  * ^    ^    ^              ^
     90  * |    |    ip6c_ip6       ip6c_off
     91  * |    ip6c_icmp6
     92  * ip6c_m
     93  *
     94  * ip6c_finaldst usually points to ip6c_ip6->ip6_dst.  if the original
     95  * (internal) packet carries a routing header, it may point the final
     96  * dstination address in the routing header.
     97  *
     98  * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
     99  *	(beware of flowlabel, if you try to compare it against others)
    100  * ip6c_dst: ip6c_finaldst + scope info
    101  */
    102 struct ip6ctlparam {
    103 	struct mbuf *ip6c_m;		/* start of mbuf chain */
    104 	struct icmp6_hdr *ip6c_icmp6;	/* icmp6 header of target packet */
    105 	struct ip6_hdr *ip6c_ip6;	/* ip6 header of target packet */
    106 	int ip6c_off;			/* offset of the target proto header */
    107 	struct sockaddr_in6 *ip6c_src;	/* srcaddr w/ additional info */
    108 	struct sockaddr_in6 *ip6c_dst;	/* (final) dstaddr w/ additional info */
    109 	struct in6_addr *ip6c_finaldst;	/* final destination address */
    110 	void *ip6c_cmdarg;		/* control command dependent data */
    111 	u_int8_t ip6c_nxt;		/* final next header field */
    112 };
    113 
    114 struct ip6protosw {
    115 	int 	pr_type;		/* socket type used for */
    116 	struct	domain *pr_domain;	/* domain protocol a member of */
    117 	short	pr_protocol;		/* protocol number */
    118 	short	pr_flags;		/* see below */
    119 
    120 /* protocol-protocol hooks */
    121 	int	(*pr_input)		/* input to protocol (from below) */
    122 			__P((struct mbuf **, int *, int));
    123 	int	(*pr_output)		/* output to protocol (from above) */
    124 			__P((struct mbuf *, ...));
    125 	void	(*pr_ctlinput)		/* control input (from below) */
    126 			__P((int, struct sockaddr *, void *));
    127 	int	(*pr_ctloutput)		/* control output (from above) */
    128 			__P((int, struct socket *, int, int, struct mbuf **));
    129 
    130 /* user-protocol hook */
    131 	int	(*pr_usrreq)		/* user request: see list below */
    132 			__P((struct socket *, int, struct mbuf *,
    133 			     struct mbuf *, struct mbuf *, struct proc *));
    134 
    135 /* utility hooks */
    136 	void	(*pr_init)		/* initialization hook */
    137 			__P((void));
    138 
    139 	void	(*pr_fasttimo)		/* fast timeout (200ms) */
    140 			__P((void));
    141 	void	(*pr_slowtimo)		/* slow timeout (500ms) */
    142 			__P((void));
    143 	void	(*pr_drain)		/* flush any excess space possible */
    144 			__P((void));
    145 	int	(*pr_sysctl)		/* sysctl for protocol */
    146 			__P((int *, u_int, void *, size_t *, void *, size_t));
    147 };
    148 
    149 extern struct ip6protosw inet6sw[];
    150 
    151 #endif /* !_NETINET6_IP6PROTOSW_H_ */
    152