1 /* 2 * Copyright (c) 2008-2019 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 /* $KAME: ip6protosw.h,v 1.22 2001/02/08 18:02:08 itojun Exp $ */ 30 31 /* 32 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. Neither the name of the project nor the names of its contributors 44 * may be used to endorse or promote products derived from this software 45 * without specific prior written permission. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 50 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 57 * SUCH DAMAGE. 58 * 59 */ 60 61 /* BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp */ 62 63 /*- 64 * Copyright (c) 1982, 1986, 1993 65 * The Regents of the University of California. All rights reserved. 66 * 67 * Redistribution and use in source and binary forms, with or without 68 * modification, are permitted provided that the following conditions 69 * are met: 70 * 1. Redistributions of source code must retain the above copyright 71 * notice, this list of conditions and the following disclaimer. 72 * 2. Redistributions in binary form must reproduce the above copyright 73 * notice, this list of conditions and the following disclaimer in the 74 * documentation and/or other materials provided with the distribution. 75 * 3. All advertising materials mentioning features or use of this software 76 * must display the following acknowledgement: 77 * This product includes software developed by the University of 78 * California, Berkeley and its contributors. 79 * 4. Neither the name of the University nor the names of its contributors 80 * may be used to endorse or promote products derived from this software 81 * without specific prior written permission. 82 * 83 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 84 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 85 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 86 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 87 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 88 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 89 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 90 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 91 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 92 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 93 * SUCH DAMAGE. 94 * 95 * @(#)protosw.h 8.1 (Berkeley) 6/2/93 96 */ 97 98 #ifndef _NETINET6_IP6PROTOSW_H_ 99 #define _NETINET6_IP6PROTOSW_H_ 100 #include <sys/appleapiopts.h> 101 102 #ifdef BSD_KERNEL_PRIVATE 103 #include <kern/locks.h> 104 105 /* 106 * Protocol switch table for IPv6. 107 * All other definitions should refer to sys/protosw.h 108 */ 109 110 struct mbuf; 111 struct sockaddr; 112 struct socket; 113 struct domain; 114 struct ip6_hdr; 115 struct icmp6_hdr; 116 struct in6_addr; 117 struct pr_usrreqs; 118 119 /* 120 * argument type for the last arg of pr_ctlinput(). 121 * should be consulted only with AF_INET6 family. 122 * 123 * IPv6 ICMP IPv6 [exthdrs] finalhdr payload 124 * ^ ^ ^ ^ 125 * | | ip6c_ip6 ip6c_off 126 * | ip6c_icmp6 127 * ip6c_m 128 * 129 * ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original 130 * (internal) packet carries a routing header, it may point the final 131 * dstination address in the routing header. 132 * 133 * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6 134 * (beware of flowlabel, if you try to compare it against others) 135 * ip6c_dst: ip6c_finaldst + scope info 136 */ 137 struct ip6ctlparam { 138 struct mbuf *ip6c_m; /* start of mbuf chain */ 139 struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */ 140 struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */ 141 int ip6c_off; /* offset of the target proto header */ 142 struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */ 143 struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */ 144 struct in6_addr *ip6c_finaldst; /* final destination address */ 145 void *ip6c_cmdarg; /* control command dependent data */ 146 u_int8_t ip6c_nxt; /* final next header field */ 147 }; 148 149 /* 150 * TODO: 151 * 152 * This closesly resembles protosw; we should merge them one day. Offsets 153 * must be exactly equivalent, due to casting. 154 */ 155 struct ip6protosw { 156 TAILQ_ENTRY(ip6protosw) pr_entry; /* chain for domain */ 157 struct domain *pr_domain; /* domain protocol a member of */ 158 struct protosw *pr_protosw; /* pointer to self */ 159 u_int16_t pr_type; /* socket type used for */ 160 u_int16_t pr_protocol; /* protocol number */ 161 u_int32_t pr_flags; /* see below */ 162 /* 163 * protocol-protocol hooks 164 */ 165 int (*pr_input) /* input to protocol (from below) */ 166 (struct mbuf **, int *, int); 167 int (*pr_output) /* output to protocol (from above) */ 168 (struct mbuf *m, struct socket *so, 169 struct sockaddr_in6 *, struct mbuf *); 170 void (*pr_ctlinput) /* control input (from below) */ 171 (int, struct sockaddr *, void *, struct ifnet *); 172 int (*pr_ctloutput) /* control output (from above) */ 173 (struct socket *, struct sockopt *); 174 /* 175 * user-protocol hook 176 */ 177 struct pr_usrreqs *pr_usrreqs; /* user request; see list below */ 178 /* 179 * utility hooks 180 */ 181 void (*pr_init) /* initialization hook */ 182 (struct ip6protosw *, struct domain *); 183 void (*pr_drain)(void); /* flush any excess space possible */ 184 /* for compat. with IPv4 protosw */ 185 int (*pr_sysctl)(void); /* sysctl for protocol */ 186 int (*pr_lock) /* lock function for protocol */ 187 (struct socket *so, int refcnt, void *debug); 188 int (*pr_unlock) /* unlock for protocol */ 189 (struct socket *so, int refcnt, void *debug); 190 lck_mtx_t *(*pr_getlock) /* retrieve protocol lock */ 191 (struct socket *so, int flags); 192 /* 193 * misc 194 */ 195 TAILQ_HEAD(, socket_filter) pr_filter_head; 196 struct protosw_old *pr_old; 197 198 void (*pr_update_last_owner) /* update last socket owner) */ 199 (struct socket *so, struct proc *p, struct proc *ep); 200 201 void (*pr_copy_last_owner) /* copy last socket from listener */ 202 (struct socket *so, struct socket *head); 203 }; 204 #endif /* BSD_KERNEL_PRIVATE */ 205 #endif /* _NETINET6_IP6PROTOSW_H_ */ 206