ip6protosw.h revision 256281
1/*- 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $KAME: ip6protosw.h,v 1.25 2001/09/26 06:13:03 keiichi Exp $ 30 */ 31 32/*- 33 * Copyright (c) 1982, 1986, 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 * 4. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)protosw.h 8.1 (Berkeley) 6/2/93 61 * BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp 62 * $FreeBSD: stable/10/sys/netinet6/ip6protosw.h 241916 2012-10-22 21:49:56Z delphij $ 63 */ 64 65#ifndef _NETINET6_IP6PROTOSW_H_ 66#define _NETINET6_IP6PROTOSW_H_ 67 68/* 69 * Protocol switch table for IPv6. 70 * All other definitions should refer to sys/protosw.h 71 */ 72 73struct mbuf; 74struct sockaddr; 75struct socket; 76struct domain; 77struct thread; 78struct ip6_hdr; 79struct icmp6_hdr; 80struct in6_addr; 81struct pr_usrreqs; 82 83/* 84 * argument type for the last arg of pr_ctlinput(). 85 * should be consulted only with AF_INET6 family. 86 * 87 * IPv6 ICMP IPv6 [exthdrs] finalhdr payload 88 * ^ ^ ^ ^ 89 * | | ip6c_ip6 ip6c_off 90 * | ip6c_icmp6 91 * ip6c_m 92 * 93 * ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original 94 * (internal) packet carries a routing header, it may point the final 95 * dstination address in the routing header. 96 * 97 * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6 98 * (beware of flowlabel, if you try to compare it against others) 99 * ip6c_dst: ip6c_finaldst + scope info 100 */ 101struct ip6ctlparam { 102 struct mbuf *ip6c_m; /* start of mbuf chain */ 103 struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */ 104 struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */ 105 int ip6c_off; /* offset of the target proto header */ 106 struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */ 107 struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */ 108 struct in6_addr *ip6c_finaldst; /* final destination address */ 109 void *ip6c_cmdarg; /* control command dependent data */ 110 u_int8_t ip6c_nxt; /* final next header field */ 111}; 112 113struct ip6protosw { 114 short pr_type; /* socket type used for */ 115 struct domain *pr_domain; /* domain protocol a member of */ 116 short pr_protocol; /* protocol number */ 117 short pr_flags; /* see below */ 118 119/* protocol-protocol hooks */ 120 int (*pr_input) /* input to protocol (from below) */ 121 (struct mbuf **, int *, int); 122 int (*pr_output) /* output to protocol (from above) */ 123 (struct mbuf *, ...); 124 void (*pr_ctlinput) /* control input (from below) */ 125 (int, struct sockaddr *, void *); 126 int (*pr_ctloutput) /* control output (from above) */ 127 (struct socket *, struct sockopt *); 128 129/* utility hooks */ 130 void (*pr_init) /* initialization hook */ 131 (void); 132 void (*pr_destroy) /* cleanup hook */ 133 (void); 134 135 void (*pr_fasttimo) /* fast timeout (200ms) */ 136 (void); 137 void (*pr_slowtimo) /* slow timeout (500ms) */ 138 (void); 139 void (*pr_drain) /* flush any excess space possible */ 140 (void); 141 struct pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */ 142}; 143 144#ifdef _KERNEL 145extern struct ip6protosw inet6sw[]; 146#endif 147 148#endif /* !_NETINET6_IP6PROTOSW_H_ */ 149