206 lines
8.4 KiB
C
206 lines
8.4 KiB
C
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/*
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* Copyright (c) 2008-2019 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/* $KAME: ip6protosw.h,v 1.22 2001/02/08 18:02:08 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/* BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp */
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/*-
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)protosw.h 8.1 (Berkeley) 6/2/93
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*/
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#ifndef _NETINET6_IP6PROTOSW_H_
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#define _NETINET6_IP6PROTOSW_H_
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#include <sys/appleapiopts.h>
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#ifdef BSD_KERNEL_PRIVATE
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#include <kern/locks.h>
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/*
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* Protocol switch table for IPv6.
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* All other definitions should refer to sys/protosw.h
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*/
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struct mbuf;
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struct sockaddr;
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struct socket;
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struct domain;
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struct ip6_hdr;
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struct icmp6_hdr;
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struct in6_addr;
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struct pr_usrreqs;
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/*
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* argument type for the last arg of pr_ctlinput().
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* should be consulted only with AF_INET6 family.
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*
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* IPv6 ICMP IPv6 [exthdrs] finalhdr payload
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* ^ ^ ^ ^
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* | | ip6c_ip6 ip6c_off
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* | ip6c_icmp6
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* ip6c_m
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*
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* ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original
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* (internal) packet carries a routing header, it may point the final
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* dstination address in the routing header.
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*
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* ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
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* (beware of flowlabel, if you try to compare it against others)
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* ip6c_dst: ip6c_finaldst + scope info
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*/
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struct ip6ctlparam {
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struct mbuf *ip6c_m; /* start of mbuf chain */
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struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */
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struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */
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int ip6c_off; /* offset of the target proto header */
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struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */
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struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */
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struct in6_addr *ip6c_finaldst; /* final destination address */
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void *ip6c_cmdarg; /* control command dependent data */
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u_int8_t ip6c_nxt; /* final next header field */
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};
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/*
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* TODO:
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*
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* This closesly resembles protosw; we should merge them one day. Offsets
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* must be exactly equivalent, due to casting.
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*/
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struct ip6protosw {
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TAILQ_ENTRY(ip6protosw) pr_entry; /* chain for domain */
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struct domain *pr_domain; /* domain protocol a member of */
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struct protosw *pr_protosw; /* pointer to self */
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u_int16_t pr_type; /* socket type used for */
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u_int16_t pr_protocol; /* protocol number */
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u_int32_t pr_flags; /* see below */
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/*
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* protocol-protocol hooks
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*/
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int (*pr_input) /* input to protocol (from below) */
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(struct mbuf **, int *, int);
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int (*pr_output) /* output to protocol (from above) */
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(struct mbuf *m, struct socket *so,
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struct sockaddr_in6 *, struct mbuf *);
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void (*pr_ctlinput) /* control input (from below) */
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(int, struct sockaddr *, void *, struct ifnet *);
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int (*pr_ctloutput) /* control output (from above) */
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(struct socket *, struct sockopt *);
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/*
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* user-protocol hook
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*/
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struct pr_usrreqs *pr_usrreqs; /* user request; see list below */
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/*
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* utility hooks
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*/
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void (*pr_init) /* initialization hook */
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(struct ip6protosw *, struct domain *);
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void (*pr_drain)(void); /* flush any excess space possible */
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/* for compat. with IPv4 protosw */
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int (*pr_sysctl)(void); /* sysctl for protocol */
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int (*pr_lock) /* lock function for protocol */
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(struct socket *so, int refcnt, void *debug);
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int (*pr_unlock) /* unlock for protocol */
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(struct socket *so, int refcnt, void *debug);
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lck_mtx_t *(*pr_getlock) /* retrieve protocol lock */
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(struct socket *so, int flags);
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/*
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* misc
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*/
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TAILQ_HEAD(, socket_filter) pr_filter_head;
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struct protosw_old *pr_old;
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void (*pr_update_last_owner) /* update last socket owner) */
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(struct socket *so, struct proc *p, struct proc *ep);
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void (*pr_copy_last_owner) /* copy last socket from listener */
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(struct socket *so, struct socket *head);
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};
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#endif /* BSD_KERNEL_PRIVATE */
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#endif /* _NETINET6_IP6PROTOSW_H_ */
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