1 /* $NetBSD: ip6protosw.h,v 1.27 2019/03/19 13:38:53 msaitoh 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 payload 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 * destination 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 (struct mbuf **, int *, int); 123 void *(*pr_ctlinput) /* control input (from below) */ 124 (int, const struct sockaddr *, void *); 125 int (*pr_ctloutput) /* control output (from above) */ 126 (int, struct socket *, struct sockopt *); 127 128 /* user-protocol hook */ 129 const struct pr_usrreqs *pr_usrreqs; 130 131 /* utility hooks */ 132 void (*pr_init) /* initialization 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 }; 142 143 #ifdef _KERNEL 144 #define PR_WRAP_INPUT6(name) \ 145 static int \ 146 name##_wrapper(struct mbuf **mp, int *offp, int proto) \ 147 { \ 148 int rv; \ 149 mutex_enter(softnet_lock); \ 150 rv = name(mp, offp, proto); \ 151 mutex_exit(softnet_lock); \ 152 return rv; \ 153 } 154 #endif 155 156 extern const struct ip6protosw inet6sw[]; 157 158 #endif /* !_NETINET6_IP6PROTOSW_H_ */ 159