1 /* $FreeBSD: src/sys/netinet6/ip6protosw.h,v 1.9 2002/04/19 04:46:23 suz Exp $ */ 2 /* $KAME: ip6protosw.h,v 1.25 2001/09/26 06:13:03 keiichi 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. All advertising materials mentioning features or use of this software 49 * must display the following acknowledgement: 50 * This product includes software developed by the University of 51 * California, Berkeley and its contributors. 52 * 4. Neither the name of the University nor the names of its contributors 53 * may be used to endorse or promote products derived from this software 54 * without specific prior written permission. 55 * 56 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 57 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 58 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 59 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 60 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 61 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 62 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 63 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 64 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 65 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 66 * SUCH DAMAGE. 67 * 68 * @(#)protosw.h 8.1 (Berkeley) 6/2/93 69 */ 70 71 #ifndef _NETINET6_IP6PROTOSW_H_ 72 #define _NETINET6_IP6PROTOSW_H_ 73 74 /* 75 * For pfil_head structure. 76 */ 77 #include <net/pfil.h> 78 79 /* 80 * Protocol switch table for IPv6. 81 * All other definitions should refer to sys/protosw.h 82 */ 83 84 struct mbuf; 85 struct sockaddr; 86 struct socket; 87 struct domain; 88 struct thread; 89 struct ip6_hdr; 90 struct icmp6_hdr; 91 struct in6_addr; 92 struct pr_usrreqs; 93 94 /* 95 * argument type for the last arg of pr_ctlinput(). 96 * should be consulted only with AF_INET6 family. 97 * 98 * IPv6 ICMP IPv6 [exthdrs] finalhdr paylaod 99 * ^ ^ ^ ^ 100 * | | ip6c_ip6 ip6c_off 101 * | ip6c_icmp6 102 * ip6c_m 103 * 104 * ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original 105 * (internal) packet carries a routing header, it may point the final 106 * dstination address in the routing header. 107 * 108 * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6 109 * (beware of flowlabel, if you try to compare it against others) 110 * ip6c_dst: ip6c_finaldst + scope info 111 */ 112 struct ip6ctlparam { 113 struct mbuf *ip6c_m; /* start of mbuf chain */ 114 struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */ 115 struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */ 116 int ip6c_off; /* offset of the target proto header */ 117 struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */ 118 struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */ 119 struct in6_addr *ip6c_finaldst; /* final destination address */ 120 void *ip6c_cmdarg; /* control command dependent data */ 121 u_int8_t ip6c_nxt; /* final next header field */ 122 }; 123 124 struct ip6protosw { 125 short pr_type; /* socket type used for */ 126 struct domain *pr_domain; /* domain protocol a member of */ 127 short pr_protocol; /* protocol number */ 128 short pr_flags; /* see below */ 129 130 /* protocol-protocol hooks */ 131 int (*pr_input) /* input to protocol (from below) */ 132 __P((struct mbuf **, int *, int)); 133 int (*pr_output) /* output to protocol (from above) */ 134 __P((struct mbuf *, ...)); 135 void (*pr_ctlinput) /* control input (from below) */ 136 __P((int, struct sockaddr *, void *)); 137 int (*pr_ctloutput) /* control output (from above) */ 138 __P((struct socket *, struct sockopt *)); 139 140 /* user-protocol hook */ 141 int (*pr_usrreq) /* user request: see list below */ 142 __P((struct socket *, int, struct mbuf *, 143 struct mbuf *, struct mbuf *, struct thread *)); 144 145 /* utility hooks */ 146 void (*pr_init) /* initialization hook */ 147 __P((void)); 148 149 void (*pr_fasttimo) /* fast timeout (200ms) */ 150 __P((void)); 151 void (*pr_slowtimo) /* slow timeout (500ms) */ 152 __P((void)); 153 void (*pr_drain) /* flush any excess space possible */ 154 __P((void)); 155 struct pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */ 156 struct pfil_head pr_pfh; 157 }; 158 159 #ifdef _KERNEL 160 extern struct ip6protosw inet6sw[]; 161 #endif 162 163 #endif /* !_NETINET6_IP6PROTOSW_H_ */ 164