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domain.h
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domain.h
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/* $NetBSD: domain.h,v 1.31 2011/06/26 16:43:12 christos 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. 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.
*
* @(#)domain.h 8.1 (Berkeley) 6/2/93
*/
#ifndef _SYS_DOMAIN_H_
#define _SYS_DOMAIN_H_
/*
* Structure per communications domain.
*/
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <net/route.h>
/*
* Forward structure declarations for function prototypes [sic].
*/
struct lwp;
struct mbuf;
struct ifnet;
struct ifqueue;
struct sockaddr;
LIST_HEAD(dom_rtlist, route);
struct domain {
int dom_family; /* AF_xxx */
const char *dom_name;
void (*dom_init) /* initialize domain data structures */
(void);
int (*dom_externalize) /* externalize access rights */
(struct mbuf *, struct lwp *, int);
void (*dom_dispose) /* dispose of internalized rights */
(struct mbuf *);
const struct protosw *dom_protosw, *dom_protoswNPROTOSW;
int (*dom_rtattach) /* initialize routing table */
(rtbl_t **, int);
int dom_rtoffset; /* an arg to rtattach, in bits */
int dom_maxrtkey; /* for routing layer */
void *(*dom_ifattach) /* attach af-dependent data on ifnet */
(struct ifnet *);
void (*dom_ifdetach) /* detach af-dependent data on ifnet */
(struct ifnet *, void *);
const void *(*dom_sockaddr_const_addr)(const struct sockaddr *,
socklen_t *);
void *(*dom_sockaddr_addr)(struct sockaddr *, socklen_t *);
int (*dom_sockaddr_cmp)(const struct sockaddr *,
const struct sockaddr *);
struct sockaddr *(*dom_sockaddr_externalize)(struct sockaddr *,
socklen_t,
const struct sockaddr *);
const struct sockaddr *dom_sa_any;
struct ifqueue *dom_ifqueues[2]; /* ifqueue for domain */
STAILQ_ENTRY(domain) dom_link;
struct mowner dom_mowner;
uint_fast8_t dom_sa_cmpofs;
uint_fast8_t dom_sa_cmplen;
struct dom_rtlist dom_rtcache;
};
STAILQ_HEAD(domainhead,domain);
#ifdef _KERNEL
#define DOMAIN_DEFINE(name) \
extern struct domain name; \
__link_set_add_data(domains, name)
#define DOMAIN_FOREACH(dom) STAILQ_FOREACH(dom, &domains, dom_link)
extern struct domainhead domains;
void domain_attach(struct domain *);
void domaininit(bool);
#endif
#endif /* !_SYS_DOMAIN_H_ */