bsd/sys/ipcs.h

   1 /*
   2  * Copyright (c) 2004-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * NOTE: Internal ipcs.h header; all interfaces are private; if you want this
  30  * same information from your own program, popen(3) the ipcs(2) command and
  31  * parse its output, or your program may not work on future OS releases.
  32  */
  33
  34 #ifndef _SYS_IPCS_H_
  35 #define _SYS_IPCS_H_
  36
  37 #include <sys/appleapiopts.h>
  38 #include <sys/cdefs.h>
  39
  40 #define IPCS_MAGIC      0x00000001      /* Version */
  41
  42 /*
  43  * IPCS_command
  44  *
  45  * This is the IPCS command structure used for obtaining status about the
  46  * System V IPC mechanisms.  All other operations are based on the per
  47  * subsystem (shm, msg, ipc) *ctl entry point, which can be called once
  48  * this information is known.
  49  */
  50
  51 struct IPCS_command {
  52         int             ipcs_magic;     /* Magic number for struct layout */
  53         int             ipcs_op;        /* Operation to perform */
  54         int             ipcs_cursor;    /* Cursor for iteration functions */
  55         int             ipcs_datalen;   /* Length of ipcs_data area */
  56         void            *ipcs_data;     /* OP specific data */
  57 };
  58
  59 #ifdef KERNEL_PRIVATE
  60 #include <machine/types.h>
  61
  62 #if __DARWIN_ALIGN_NATURAL
  63 #pragma options align=natural
  64 #endif
  65
  66 struct user_IPCS_command {
  67         int             ipcs_magic;     /* Magic number for struct layout */
  68         int             ipcs_op;        /* Operation to perform */
  69         int             ipcs_cursor;    /* Cursor for iteration functions */
  70         int             ipcs_datalen;   /* Length of ipcs_data area */
  71         user_addr_t     ipcs_data;      /* OP specific data */
  72 };
  73
  74 #if __DARWIN_ALIGN_NATURAL
  75 #pragma options align=reset
  76 #endif
  77
  78 #endif /* KERNEL_PRIVATE */
  79
  80 /*
  81  * OP code values for 'ipcs_op'
  82  */
  83 #define IPCS_SHM_CONF   0x00000001      /* Obtain shared memory config */
  84 #define IPCS_SHM_ITER   0x00000002      /* Iterate shared memory info */
  85
  86 #define IPCS_SEM_CONF   0x00000010      /* Obtain semaphore config */
  87 #define IPCS_SEM_ITER   0x00000020      /* Iterate semaphore info */
  88
  89 #define IPCS_MSG_CONF   0x00000100      /* Obtain message queue config */
  90 #define IPCS_MSG_ITER   0x00000200      /* Iterate message queue info */
  91
  92 /*
  93  * Sysctl oid name values
  94  */
  95 #define IPCS_SHM_SYSCTL "kern.sysv.ipcs.shm"
  96 #define IPCS_SEM_SYSCTL "kern.sysv.ipcs.sem"
  97 #define IPCS_MSG_SYSCTL "kern.sysv.ipcs.msg"
  98
  99
 100 #endif  /* _SYS_IPCS_H_ */