/*
- * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * @APPLE_LICENSE_OSREFERENCE_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.
*
- * 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
+ * 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_LICENSE_OSREFERENCE_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 $ */
__int32_t sem_pad3[4]; /* RESERVED: DO NOT USE! */
};
+#pragma pack(4)
+struct user64_semid_ds {
+ struct ipc_perm sem_perm; /* [XSI] operation permission struct */
+ int32_t sem_base; /* 32 bit base ptr for semaphore set */
+ unsigned short sem_nsems; /* [XSI] number of sems in set */
+ user64_time_t sem_otime; /* [XSI] last operation time */
+ int32_t sem_pad1; /* RESERVED: DO NOT USE! */
+ user64_time_t sem_ctime; /* [XSI] last change time */
+ /* Times measured in secs since */
+ /* 00:00:00 GMT, Jan. 1, 1970 */
+ int32_t sem_pad2; /* RESERVED: DO NOT USE! */
+ int32_t sem_pad3[4]; /* RESERVED: DO NOT USE! */
+};
+
+struct user32_semid_ds {
+ struct ipc_perm sem_perm; /* [XSI] operation permission struct */
+ int32_t sem_base; /* 32 bit base ptr for semaphore set */
+ unsigned short sem_nsems; /* [XSI] number of sems in set */
+ user32_time_t sem_otime; /* [XSI] last operation time */
+ int32_t sem_pad1; /* RESERVED: DO NOT USE! */
+ user32_time_t sem_ctime; /* [XSI] last change time */
+ /* Times measured in secs since */
+ /* 00:00:00 GMT, Jan. 1, 1970 */
+ int32_t sem_pad2; /* RESERVED: DO NOT USE! */
+ int32_t sem_pad3[4]; /* RESERVED: DO NOT USE! */
+};
+#pragma pack()
+
union user_semun {
user_addr_t buf; /* buffer for IPC_STAT & IPC_SET */
user_addr_t array; /* array for GETALL & SETALL */
#define SEMMSL SEMMNS /* max # of semaphores per id */
#endif
#ifndef SEMOPM
-#define SEMOPM 100 /* max # of operations per semop call */
+#define SEMOPM 5 /* max # of operations per semop call */
#endif
* 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 {
};
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 */
*/
#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
projects / apple / xnu.git / blobdiff