mach/servers/key_defs.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Mach Operating System
  27  * Copyright (c) 1987 Carnegie-Mellon University
  28  * All rights reserved.  The CMU software License Agreement specifies
  29  * the terms and conditions for use and redistribution.
  30  */
  31
  32 /*
  33  * Definitions of encryption keys etc..
  34  */
  35
  36 /*
  37  * HISTORY:
  38  *  5-Jun-87  Robert Sansom (rds) at Carnegie Mellon University
  39  *      Added macros to convert keys between network and host order.
  40  *
  41  * 12-Apr-87  Robert Sansom (rds) at Carnegie Mellon University
  42  *      Added KEY_IS_NULL.
  43  *
  44  *  2-Feb-87  Robert Sansom (rds) at Carnegie Mellon University
  45  *      Added KEY_EQUAL.
  46  *
  47  *  5-Nov-86  Robert Sansom (rds) at Carnegie-Mellon University
  48  *      Started.
  49  *
  50  */
  51
  52 #ifndef _KEY_DEFS_
  53 #define _KEY_DEFS_
  54
  55 /*
  56  * An encrytion key.
  57  */
  58 typedef union {
  59     unsigned char       key_bytes[16];
  60     unsigned long       key_longs[4];
  61 } key_t, *key_ptr_t;
  62
  63 #define KEY_EQUAL(key1, key2)                                   \
  64     ((key1.key_longs[0] == key2.key_longs[0])                   \
  65         && (key1.key_longs[1] == key2.key_longs[1])             \
  66         && (key1.key_longs[2] == key2.key_longs[2])             \
  67         && (key1.key_longs[3] == key2.key_longs[3]))
  68
  69 #define KEY_IS_NULL(key)                                        \
  70     (((key).key_longs[0] == 0) && ((key).key_longs[1] == 0)     \
  71         && ((key).key_longs[2] == 0) && ((key).key_longs[3] == 0))
  72
  73
  74 /*
  75  * Macros to convert keys between network and host byte order.
  76  */
  77 #define NTOH_KEY(key) {                                                 \
  78     (key).key_longs[0] = ntohl((key).key_longs[0]);                     \
  79     (key).key_longs[1] = ntohl((key).key_longs[1]);                     \
  80     (key).key_longs[2] = ntohl((key).key_longs[2]);                     \
  81     (key).key_longs[3] = ntohl((key).key_longs[3]);                     \
  82 }
  83
  84 #define HTON_KEY(key) {                                                 \
  85     (key).key_longs[0] = htonl((key).key_longs[0]);                     \
  86     (key).key_longs[1] = htonl((key).key_longs[1]);                     \
  87     (key).key_longs[2] = htonl((key).key_longs[2]);                     \
  88     (key).key_longs[3] = htonl((key).key_longs[3]);                     \
  89 }
  90
  91 /*
  92  * Structure used to transmit or store a token or a key.
  93  */
  94 typedef union {
  95     key_t       si_key;
  96     key_t       si_token;
  97 } secure_info_t, *secure_info_ptr_t;
  98
  99 /*
 100  * Security Level of ports and messages.
 101  */
 102 #define PORT_NOT_SECURE         0
 103 #define MESSAGE_NOT_SECURE      0
 104
 105 #endif  /* _KEY_DEFS_ */