/*
- * 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
* 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,
* 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 */
#define _SYS_DOMAIN_H_
#ifdef PRIVATE
-
#include <sys/appleapiopts.h>
-#ifdef KERNEL
+#include <sys/cdefs.h>
+#ifdef KERNEL_PRIVATE
#include <kern/locks.h>
-#endif /* KERNEL */
/*
* Structure per communications domain.
*/
-#include <sys/cdefs.h>
-
/*
* 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_ */
projects / apple / xnu.git / blobdiff