security/mac_alloc.h

   1 /*
   2  * Copyright (c) 2007 Apple 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  * Memory allocation wrappers.
  30  */
  31
  32 #ifndef _SECURITY_MAC_ALLOC_H_
  33 #define _SECURITY_MAC_ALLOC_H_
  34
  35 #include <mach/machine/vm_types.h>
  36 #include <kern/kern_types.h>
  37 #include <sys/appleapiopts.h>
  38
  39 /* JMM - should use OSMlloc.h interfaces */
  40
  41 #ifdef __APPLE_API_EVOLVING
  42 /*
  43  * Kernel Memory allocator
  44  */
  45 void *  mac_kalloc      (vm_size_t size, int how);
  46 void    mac_kfree       (void *data, vm_size_t size);
  47
  48 /*
  49  * Mbuf allocator for mbuf labels.
  50  */
  51 void *  mac_mbuf_alloc  (int len, int wait);
  52 void    mac_mbuf_free   (void *data);
  53
  54 /*
  55  *
  56  */
  57 int     mac_wire        (void *start, void *end);
  58 int     mac_unwire      (void *start, void *end);
  59
  60 /*
  61  * Zone allocator
  62  */
  63 zone_t  mac_zinit       (vm_size_t size, vm_size_t maxmem,
  64                          vm_size_t alloc, const char *name);
  65 void    mac_zone_change (zone_t zone, unsigned int item, boolean_t value);
  66 void *  mac_zalloc      (zone_t zone, int how);
  67 void    mac_zfree       (zone_t zone, void *elem);
  68
  69 /* Item definitions */
  70 #define Z_EXHAUST       1       /* Make zone exhaustible        */
  71 #define Z_COLLECT       2       /* Make zone collectable        */
  72 #define Z_EXPAND        3       /* Make zone expandable         */
  73 #define Z_FOREIGN       4       /* Allow collectable zone to contain foreign elements */
  74 #define Z_CALLERACCT    5       /* Account alloc/free against the caller */
  75
  76 #endif  /* __APPLE_API_EVOLVING */
  77 #endif  /* _SECURITY_MAC_ALLOC_H_ */