X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/c0fea4742e91338fffdcf79f86a7c1d5e2b97eb1..a1c7dba18ef36983396c282fe85292db066e39db:/bsd/sys/domain.h diff --git a/bsd/sys/domain.h b/bsd/sys/domain.h index 3a5833774..3fe847cdf 100644 --- a/bsd/sys/domain.h +++ b/bsd/sys/domain.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2012 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. - * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * @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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * 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 */ @@ -61,63 +67,128 @@ #define _SYS_DOMAIN_H_ #ifdef PRIVATE - #include -#ifdef KERNEL +#include +#ifdef KERNEL_PRIVATE #include -#endif /* KERNEL */ /* * Structure per communications domain. */ -#include - /* * Forward structure declarations for function prototypes [sic]. */ struct mbuf; -#define DOM_REENTRANT 0x01 #pragma pack(4) -struct domain { +#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 */ - char *dom_name; + const char *dom_name; void (*dom_init)(void); /* initialize domain data structures */ - int (*dom_externalize)(struct mbuf *); - /* externalize access rights */ - void (*dom_dispose)(struct mbuf *); - /* dispose of internalized rights */ + 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; - int (*dom_rtattach)(void **, int); - /* initialize routing table */ +#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; /* Let the protocol tell us */ + int dom_protohdrlen; /* len of protocol header */ int dom_refs; /* # socreates outstanding */ -#ifdef _KERN_LOCKS_H_ - lck_mtx_t *dom_mtx; /* domain global mutex */ -#else - void *dom_mtx; /* domain global mutex */ -#endif - u_long dom_flags; - u_long reserved[2]; + lck_mtx_t *dom_mtx; /* domain global mutex */ + uint32_t dom_flags; + uint32_t reserved[2]; }; #pragma pack() -#ifdef KERNEL -extern struct domain *domains; -extern struct domain localdomain; +#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 */ +}; -__BEGIN_DECLS -extern void net_add_domain(struct domain *dp); -extern int net_del_domain(struct domain *); -__END_DECLS +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 */ -#define DOMAIN_SET(domain_set) +/* pseudo-public domain flags */ +#define DOMF_USERFLAGS (DOM_REENTRANT) +#endif /* BSD_KERNEL_PRIVATE */ -#endif /* KERNEL */ +__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 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 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_ */