/* * Copyright (c) 2000-2012 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@ */ /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */ /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ /* * 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. * * @(#)domain.h 8.1 (Berkeley) 6/2/93 * $FreeBSD: src/sys/sys/domain.h,v 1.14 1999/12/29 04:24:40 peter Exp $ */ #ifndef _SYS_DOMAIN_H_ #define _SYS_DOMAIN_H_ #ifdef PRIVATE #include <sys/appleapiopts.h> #include <sys/cdefs.h> #ifdef KERNEL_PRIVATE #include <kern/locks.h> /* * Structure per communications domain. */ /* * Forward structure declarations for function prototypes [sic]. */ struct mbuf; #pragma pack(4) #ifdef XNU_KERNEL_PRIVATE /* * Legacy domain. * * NOTE: Do not modify this structure, as there are modules outside of xnu * which rely on the size and layout for binary compatibility. This structure * is simply used by the exported net_{add,del}_domain_old, pffinddomain_old * routines. Internally, domains are stored in the private variant of domain * defined down below. */ struct domain_old { #else struct domain { #endif /* !XNU_KERNEL_PRIVATE */ int dom_family; /* AF_xxx */ const char *dom_name; void (*dom_init)(void); /* initialize domain data structures */ int (*dom_externalize) /* externalize access rights */ (struct mbuf *); void (*dom_dispose) /* dispose of internalized rights */ (struct mbuf *); #ifdef XNU_KERNEL_PRIVATE struct protosw_old *dom_protosw; /* Chain of protosw's for AF */ struct domain_old *dom_next; #else struct protosw *dom_protosw; /* Chain of protosw's for AF */ struct domain *dom_next; #endif /* !XNU_KERNEL_PRIVATE */ int (*dom_rtattach) /* initialize routing table */ (void **, int); int dom_rtoffset; /* an arg to rtattach, in bits */ int dom_maxrtkey; /* for routing layer */ int dom_protohdrlen; /* len of protocol header */ int dom_refs; /* # socreates outstanding */ lck_mtx_t *dom_mtx; /* domain global mutex */ uint32_t dom_flags; uint32_t reserved[2]; }; #pragma pack() #ifdef XNU_KERNEL_PRIVATE /* * Internal, private and extendable representation of domain. */ struct domain { int dom_family; /* AF_xxx */ uint32_t dom_flags; /* domain flags (see below ) */ uint32_t dom_refs; /* # socreates outstanding */ lck_mtx_t *dom_mtx; /* domain global mutex */ decl_lck_mtx_data(, dom_mtx_s); TAILQ_ENTRY(domain) dom_entry; /* next domain in list */ TAILQ_HEAD(, protosw) dom_protosw; /* protosw chain */ void (*dom_init) /* initialize domain data structures */ (struct domain *); int (*dom_externalize) /* externalize access rights */ (struct mbuf *); void (*dom_dispose) /* dispose of internalized rights */ (struct mbuf *); int (*dom_rtattach) /* initialize routing table */ (void **, int); int dom_rtoffset; /* an arg to rtattach, in bits */ int dom_maxrtkey; /* for routing layer */ int dom_protohdrlen; /* len of protocol header */ const char *dom_name; struct domain_old *dom_old; /* domain pointer per net_add_domain */ }; extern TAILQ_HEAD(domains_head, domain) domains; extern struct domain *localdomain; #endif /* XNU_KERNEL_PRIVATE */ /* * Values for dom_flags */ #define DOM_REENTRANT 0x1 #ifdef BSD_KERNEL_PRIVATE #define DOM_INITIALIZED 0x2 /* domain has been initialized */ #define DOM_ATTACHED 0x4 /* domain is in the global list */ #define DOM_OLD 0x10000000 /* domain added via net_add_domain */ /* pseudo-public domain flags */ #define DOMF_USERFLAGS (DOM_REENTRANT) #endif /* BSD_KERNEL_PRIVATE */ __BEGIN_DECLS #ifdef XNU_KERNEL_PRIVATE extern void net_add_domain_old(struct domain_old *dp); extern int net_del_domain_old(struct domain_old *); extern void net_drain_domains(void); extern void domain_proto_mtx_lock_assert_held(void); extern void domain_proto_mtx_lock_assert_notheld(void); struct domain_guard; typedef const struct domain_guard *domain_guard_t; extern domain_guard_t domain_guard_deploy(void); extern void domain_guard_release(domain_guard_t); struct domain_unguard; typedef const struct domain_unguard *domain_unguard_t; extern domain_unguard_t domain_unguard_deploy(void); extern void domain_unguard_release(domain_unguard_t); extern struct domain_old *pffinddomain_old(int); #else extern void net_add_domain(struct domain *dp); extern int net_del_domain(struct domain *); #endif /* XNU_KERNEL_PRIVATE */ extern struct domain *pffinddomain(int); __END_DECLS #endif /* KERNEL_PRIVATE */ #endif /* PRIVATE */ #endif /* _SYS_DOMAIN_H_ */