151 lines
5.9 KiB
C
151 lines
5.9 KiB
C
/*
|
|
* Copyright (c) 2000-2005 Apple Computer, 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
|
|
* 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
|
|
* limitations under the License.
|
|
*
|
|
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
|
|
*/
|
|
/* $NetBSD: shm.h,v 1.15 1994/06/29 06:45:17 cgd Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994 Adam Glass
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Adam Glass.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* As defined+described in "X/Open System Interfaces and Headers"
|
|
* Issue 4, p. XXX
|
|
*/
|
|
|
|
#ifndef _SYS_SHM_INTERNALH_
|
|
#define _SYS_SHM_INTERNALH_
|
|
|
|
#include <sys/shm.h>
|
|
#include <sys/cdefs.h>
|
|
|
|
#include <machine/types.h>
|
|
|
|
#pragma pack(4)
|
|
|
|
struct user_shmid_ds {
|
|
struct ipc_perm shm_perm; /* operation permission structure */
|
|
user_size_t shm_segsz; /* size of segment in bytes */
|
|
pid_t shm_lpid; /* PID of last shared memory op */
|
|
pid_t shm_cpid; /* PID of creator */
|
|
short shm_nattch; /* number of current attaches */
|
|
user_time_t shm_atime; /* time of last shmat() */
|
|
user_time_t shm_dtime; /* time of last shmdt() */
|
|
user_time_t shm_ctime; /* time of last change by shmctl() */
|
|
user_addr_t shm_internal; /* reserved for kernel use */
|
|
};
|
|
|
|
struct user32_shmid_ds {
|
|
struct ipc_perm shm_perm; /* operation permission structure */
|
|
uint32_t shm_segsz; /* size of segment in bytes */
|
|
pid_t shm_lpid; /* PID of last shared memory op */
|
|
pid_t shm_cpid; /* PID of creator */
|
|
short shm_nattch; /* number of current attaches */
|
|
uint32_t shm_atime; /* time of last shmat() */
|
|
uint32_t shm_dtime; /* time of last shmdt() */
|
|
uint32_t shm_ctime; /* time of last change by shmctl() */
|
|
user32_addr_t shm_internal; /* reserved for kernel use */
|
|
};
|
|
|
|
#pragma pack()
|
|
|
|
/*
|
|
* System 5 style catch-all structure for shared memory constants that
|
|
* might be of interest to user programs. Also part of the ipcs interface.
|
|
* Note: use of user_ssize_t intentional: permits 32 bit ipcs to provide
|
|
* information about 64 bit programs shared segments.
|
|
* Note 2: user_ssize_t is not that useful if it's not 64-bit,
|
|
* so let's use int64_t explicitely...
|
|
*/
|
|
struct shminfo {
|
|
int64_t shmmax; /* max shm segment size (bytes) */
|
|
int64_t shmmin; /* min shm segment size (bytes) */
|
|
int64_t shmmni; /* max number of shm identifiers */
|
|
int64_t shmseg; /* max shm segments per process */
|
|
int64_t shmall; /* max amount of shm (pages) */
|
|
};
|
|
|
|
#ifdef KERNEL
|
|
|
|
struct label;
|
|
|
|
/*
|
|
* Add a kernel wrapper to the shmid_ds struct so that private info (like the
|
|
* MAC label) can be added to it, without changing the user interface.
|
|
*/
|
|
struct shmid_kernel {
|
|
struct user_shmid_ds u;
|
|
struct label *label; /* MAC label */
|
|
};
|
|
|
|
extern struct shminfo shminfo;
|
|
extern struct shmid_kernel *shmsegs;
|
|
|
|
struct proc;
|
|
|
|
__BEGIN_DECLS
|
|
|
|
void shmexit(struct proc *);
|
|
int shmfork(struct proc *, struct proc *);
|
|
__private_extern__ void shmexec(struct proc *);
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* kernel */
|
|
|
|
#endif /* !_SYS_SHM_INTERNALH_ */
|