xnu-1228.12.14.tar.gz

[apple/xnu.git] / bsd / sys / sem_internal.h

diff --git a/bsd/sys/sem_internal.h b/bsd/sys/sem_internal.h
index d06c73fab6135dd7dab449a48fbc8b45fc9b3239..e59aca2aa93d9ff28d2ac119542d736f7afd0811 100644 (file)
--- a/bsd/sys/sem_internal.h
+++ b/bsd/sys/sem_internal.h
@@ -1,14 +1,19 @@
 /*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
@@ -18,7 +23,13 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
  */
 /*     $NetBSD: sem.h,v 1.5 1994/06/29 06:45:15 cgd Exp $      */
 
@@ -115,7 +126,7 @@ typedef union user_semun user_semun_t;
  * Undo structure (internal: one per process)
  */
 struct sem_undo {
-       struct  sem_undo *un_next;      /* ptr to next active undo structure */
+       int     un_next_idx;    /* index of next active undo structure */
        struct  proc *un_proc;          /* owner of this structure */
        short   un_cnt;                 /* # of active entries */
        struct undo {
@@ -143,6 +154,15 @@ struct seminfo {
 };
 extern struct seminfo  seminfo;
 
+/*
+ * Kernel wrapper for the user-level structure
+ */
+struct semid_kernel {
+       struct  user_semid_ds u;
+       struct  label *label;   /* MAC framework label */
+};
+
+
 /* internal "mode" bits */
 #define        SEM_ALLOC       01000   /* semaphore is allocated */
 #define        SEM_DEST        02000   /* semaphore will be destroyed on last detach */
@@ -169,7 +189,7 @@ extern struct seminfo       seminfo;
  */
 #define SEMUSZ         sizeof(struct sem_undo)
 
-extern struct user_semid_ds    *sema;          /* semaphore id pool */
+extern struct semid_kernel     *sema;          /* semaphore id pool */
 extern struct sem              *sem_pool;      /* semaphore pool */
 /* This is now a struct sem_undo with the new memory allocation 
  * extern int  *semu;          // undo structure pool
@@ -197,13 +217,4 @@ extern struct sem_undo     *semu;          /* undo structure pool */
  */
 void   semexit(struct proc *p);
 
-/*
- * Parameters to the semconfig system call
- */
-typedef enum {
-       SEM_CONFIG_FREEZE,      /* Freeze the semaphore facility. */
-       SEM_CONFIG_THAW         /* Thaw the semaphore facility. */
-} semconfig_ctl_t;
-
-
 #endif /* !_SYS_SEM__INTERNALH_ */