gems-kernel/source/THIRDPARTY/xnu/bsd/netinet6/ip6protosw.h
2024-06-03 11:29:39 -05:00

205 lines
8.4 KiB
C

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