X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8ad349bb6ed4a0be06e34c92be0d98b92e078db4..3903760236c30e3b5ace7a4eefac3a269d68957c:/bsd/sys/sem_internal.h diff --git a/bsd/sys/sem_internal.h b/bsd/sys/sem_internal.h index 0d0db0dae..bf697a1ea 100644 --- a/bsd/sys/sem_internal.h +++ b/bsd/sys/sem_internal.h @@ -1,31 +1,35 @@ /* - * 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 $ */ @@ -66,6 +70,34 @@ struct user_semid_ds { __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 */ @@ -114,7 +146,7 @@ typedef union user_semun user_semun_t; #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 @@ -122,7 +154,7 @@ 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 { @@ -150,6 +182,15 @@ 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 */ @@ -176,7 +217,7 @@ 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