1 /* $OpenBSD: ip6protosw.h,v 1.10 2013/10/21 12:40:50 deraadt 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 /*- 35 * Copyright (c) 1982, 1986, 1993 36 * The Regents of the University of California. All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 * @(#)protosw.h 8.1 (Berkeley) 6/2/93 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 73 struct mbuf; 74 struct sockaddr; 75 struct socket; 76 struct domain; 77 struct proc; 78 struct ip6_hdr; 79 struct icmp6_hdr; 80 struct in6_addr; 81 82 /* 83 * argument type for the last arg of pr_ctlinput(). 84 * should be consulted only with AF_INET6 family. 85 * 86 * IPv6 ICMP IPv6 [exthdrs] finalhdr paylaod 87 * ^ ^ ^ ^ 88 * | | ip6c_ip6 ip6c_off 89 * | ip6c_icmp6 90 * ip6c_m 91 * 92 * ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original 93 * (internal) packet carries a routing header, it may point the final 94 * dstination address in the routing header. 95 * 96 * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6 97 * (beware of flowlabel, if you try to compare it against others) 98 * ip6c_dst: ip6c_finaldst + scope info 99 */ 100 struct ip6ctlparam { 101 struct mbuf *ip6c_m; /* start of mbuf chain */ 102 struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */ 103 struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */ 104 int ip6c_off; /* offset of the target proto header */ 105 struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */ 106 struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */ 107 struct in6_addr *ip6c_finaldst; /* final destination address */ 108 void *ip6c_cmdarg; /* control command dependent data */ 109 u_int8_t ip6c_nxt; /* final next header field */ 110 }; 111 112 struct ip6protosw { 113 short pr_type; /* socket type used for */ 114 struct domain *pr_domain; /* domain protocol a member of */ 115 short pr_protocol; /* protocol number */ 116 short pr_flags; /* see below */ 117 118 /* protocol-protocol hooks */ 119 /* input to protocol (from below) */ 120 int (*pr_input)(struct mbuf **, int *, int); 121 /* output to protocol (from above) */ 122 int (*pr_output)(struct mbuf *, ...); 123 /* control input (from below) */ 124 void (*pr_ctlinput)(int, struct sockaddr *, u_int, void *); 125 /* control output (from above) */ 126 int (*pr_ctloutput)(int, struct socket *, int, int, struct mbuf **); 127 128 /* user-protocol hook */ 129 /* user request: see list below */ 130 int (*pr_usrreq)(struct socket *, int, struct mbuf *, 131 struct mbuf *, struct mbuf *, struct proc *); 132 133 /* utility hooks */ 134 void (*pr_init)(void); /* initialization hook */ 135 136 void (*pr_fasttimo)(void); /* fast timeout (200ms) */ 137 void (*pr_slowtimo)(void); /* slow timeout (500ms) */ 138 void (*pr_drain)(void); /* flush any excess space possible */ 139 /* sysctl for protocol */ 140 int (*pr_sysctl)(int *, u_int, void *, size_t *, void *, size_t); 141 }; 142 143 #ifdef _KERNEL 144 extern u_char ip6_protox[]; 145 extern struct ip6protosw inet6sw[]; 146 #endif 147 148 #endif /* !_NETINET6_IP6PROTOSW_H_ */ 149