/* * 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_ */