X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/316670eb35587141e969394ae8537d66b9211e80..a1c7dba18ef36983396c282fe85292db066e39db:/bsd/sys/domain.h diff --git a/bsd/sys/domain.h b/bsd/sys/domain.h index 9f6bd965f..3fe847cdf 100644 --- a/bsd/sys/domain.h +++ b/bsd/sys/domain.h @@ -1,8 +1,8 @@ /* - * Copyright (c) 2000-2006, 2012 Apple Computer, Inc. All rights reserved. + * 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 @@ -11,10 +11,10 @@ * 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, @@ -22,7 +22,7 @@ * 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 */ @@ -67,65 +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 */ - const 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 - uint32_t dom_flags; - uint32_t 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 *); -extern int domain_proto_mtx_lock(void); -extern void domain_proto_mtx_unlock(int locked); -__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_ */