X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/de355530ae67247cbd0da700edb3a2a1dae884c2..7ee9d059c4eecf68ae4f8b0fb99ae2471eda79af:/bsd/sys/ipc.h?ds=sidebyside diff --git a/bsd/sys/ipc.h b/bsd/sys/ipc.h index 5c642955e..a43cacc55 100644 --- a/bsd/sys/ipc.h +++ b/bsd/sys/ipc.h @@ -1,23 +1,29 @@ /* * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * 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 Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * 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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * 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_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1988 University of Utah. @@ -64,62 +70,139 @@ * @(#)ipc.h 8.4 (Berkeley) 2/19/95 */ -#include - /* * SVID compatible ipc.h file */ #ifndef _SYS_IPC_H_ #define _SYS_IPC_H_ -struct ipc_perm { - ushort cuid; /* creator user id */ - ushort cgid; /* creator group id */ - ushort uid; /* user id */ - ushort gid; /* group id */ - ushort mode; /* r/w permission */ - ushort seq; /* sequence # (to generate unique msg/sem/shm id) */ - key_t key; /* user specified msg/sem/shm key */ +#include +#include + +#include + +/* + * [XSI] The uid_t, gid_t, mode_t, and key_t types SHALL be defined as + * described in . + */ +#ifndef _UID_T +typedef __darwin_uid_t uid_t; /* user id */ +#define _UID_T +#endif + +#ifndef _GID_T +typedef __darwin_gid_t gid_t; +#define _GID_T +#endif + +#ifndef _MODE_T +typedef __darwin_mode_t mode_t; +#define _MODE_T +#endif + +#ifndef _KEY_T +#define _KEY_T +typedef __int32_t key_t; +#endif + +#pragma pack(4) + +/* + * Technically, we should force all code references to the new structure + * definition, not in just the standards conformance case, and leave the + * legacy interface there for binary compatibility only. Currently, we + * are only forcing this for programs requesting standards conformance. + */ +#if __DARWIN_UNIX03 || defined(KERNEL) +/* + * [XSI] Information used in determining permission to perform an IPC + * operation + */ +struct ipc_perm +{ + uid_t uid; /* [XSI] Owner's user ID */ + gid_t gid; /* [XSI] Owner's group ID */ + uid_t cuid; /* [XSI] Creator's user ID */ + gid_t cgid; /* [XSI] Creator's group ID */ + mode_t mode; /* [XSI] Read/write permission */ + unsigned short _seq; /* Reserved for internal use */ + key_t _key; /* Reserved for internal use */ +}; +#define __ipc_perm_new ipc_perm +#else /* !__DARWIN_UNIX03 */ +#define ipc_perm __ipc_perm_old +#endif /* !__DARWIN_UNIX03 */ + +#if !__DARWIN_UNIX03 +/* + * Legacy structure; this structure is maintained for binary backward + * compatability with previous versions of the interface. New code + * should not use this interface, since ID values may be truncated. + */ +struct __ipc_perm_old { + __uint16_t cuid; /* Creator's user ID */ + __uint16_t cgid; /* Creator's group ID */ + __uint16_t uid; /* Owner's user ID */ + __uint16_t gid; /* Owner's group ID */ + mode_t mode; /* Read/Write permission */ + __uint16_t seq; /* Reserved for internal use */ + key_t key; /* Reserved for internal use */ }; +#endif /* !__DARWIN_UNIX03 */ -/* common mode bits */ -#define IPC_R 000400 /* read permission */ -#define IPC_W 000200 /* write/alter permission */ -#define IPC_M 010000 /* permission to change control info */ +#pragma pack() + +/* + * [XSI] Definitions shall be provided for the following constants: + */ + +/* Mode bits */ +#define IPC_CREAT 001000 /* Create entry if key does not exist */ +#define IPC_EXCL 002000 /* Fail if key exists */ +#define IPC_NOWAIT 004000 /* Error if request must wait */ -/* SVID required constants (same values as system 5) */ -#define IPC_CREAT 001000 /* create entry if key does not exist */ -#define IPC_EXCL 002000 /* fail if key exists */ -#define IPC_NOWAIT 004000 /* error if request must wait */ +/* Keys */ +#define IPC_PRIVATE ((key_t)0) /* Private key */ -#define IPC_PRIVATE (key_t)0 /* private key */ +/* Control commands */ +#define IPC_RMID 0 /* Remove identifier */ +#define IPC_SET 1 /* Set options */ +#define IPC_STAT 2 /* Get options */ -#define IPC_RMID 0 /* remove identifier */ -#define IPC_SET 1 /* set options */ -#define IPC_STAT 2 /* get options */ -#ifdef KERNEL -#ifdef __APPLE_API_PRIVATE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) + +/* common mode bits */ +#define IPC_R 000400 /* Read permission */ +#define IPC_W 000200 /* Write/alter permission */ +#define IPC_M 010000 /* Modify control info permission */ + +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ + + +#ifdef BSD_KERNEL_PRIVATE +/* + * Kernel implementation details which should not be utilized by user + * space programs. + */ /* Macros to convert between ipc ids and array indices or sequence ids */ #define IPCID_TO_IX(id) ((id) & 0xffff) #define IPCID_TO_SEQ(id) (((id) >> 16) & 0xffff) -#define IXSEQ_TO_IPCID(ix,perm) (((perm.seq) << 16) | (ix & 0xffff)) +#define IXSEQ_TO_IPCID(ix,perm) (((perm._seq) << 16L) | ((ix) & 0xffff)) struct ucred; -int ipcperm __P((struct ucred *, struct ipc_perm *, int)); -#endif /* __APPLE_API_PRIVATE */ -#else /* ! KERNEL */ +int ipcperm(struct ucred *, struct ipc_perm *, int); +#endif /* BSD_KERNEL_PRIVATE */ -/* XXX doesn't really belong here, but has been historical practice in SysV. */ - -#include +#ifndef KERNEL __BEGIN_DECLS -key_t ftok __P((const char *, int)); +/* [XSI] */ +key_t ftok(const char *, int); __END_DECLS -#endif /* KERNEL */ +#endif /* !KERNEL */ #endif /* !_SYS_IPC_H_ */