mach/servers/key_defs.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * Mach Operating System
  25  * Copyright (c) 1987 Carnegie-Mellon University
  26  * All rights reserved.  The CMU software License Agreement specifies
  27  * the terms and conditions for use and redistribution.
  28  */
  29
  30 /*
  31  * Definitions of encryption keys etc..
  32  */
  33
  34 /*
  35  * HISTORY:
  36  *  5-Jun-87  Robert Sansom (rds) at Carnegie Mellon University
  37  *      Added macros to convert keys between network and host order.
  38  *
  39  * 12-Apr-87  Robert Sansom (rds) at Carnegie Mellon University
  40  *      Added KEY_IS_NULL.
  41  *
  42  *  2-Feb-87  Robert Sansom (rds) at Carnegie Mellon University
  43  *      Added KEY_EQUAL.
  44  *
  45  *  5-Nov-86  Robert Sansom (rds) at Carnegie-Mellon University
  46  *      Started.
  47  *
  48  */
  49
  50 #ifndef _KEY_DEFS_
  51 #define _KEY_DEFS_
  52
  53 /*
  54  * An encrytion key.
  55  */
  56 typedef union {
  57     unsigned char       key_bytes[16];
  58     unsigned long       key_longs[4];
  59 } key_t, *key_ptr_t;
  60
  61 #define KEY_EQUAL(key1, key2)                                   \
  62     ((key1.key_longs[0] == key2.key_longs[0])                   \
  63         && (key1.key_longs[1] == key2.key_longs[1])             \
  64         && (key1.key_longs[2] == key2.key_longs[2])             \
  65         && (key1.key_longs[3] == key2.key_longs[3]))
  66
  67 #define KEY_IS_NULL(key)                                        \
  68     (((key).key_longs[0] == 0) && ((key).key_longs[1] == 0)     \
  69         && ((key).key_longs[2] == 0) && ((key).key_longs[3] == 0))
  70
  71
  72 /*
  73  * Macros to convert keys between network and host byte order.
  74  */
  75 #define NTOH_KEY(key) {                                                 \
  76     (key).key_longs[0] = ntohl((key).key_longs[0]);                     \
  77     (key).key_longs[1] = ntohl((key).key_longs[1]);                     \
  78     (key).key_longs[2] = ntohl((key).key_longs[2]);                     \
  79     (key).key_longs[3] = ntohl((key).key_longs[3]);                     \
  80 }
  81
  82 #define HTON_KEY(key) {                                                 \
  83     (key).key_longs[0] = htonl((key).key_longs[0]);                     \
  84     (key).key_longs[1] = htonl((key).key_longs[1]);                     \
  85     (key).key_longs[2] = htonl((key).key_longs[2]);                     \
  86     (key).key_longs[3] = htonl((key).key_longs[3]);                     \
  87 }
  88
  89 /*
  90  * Structure used to transmit or store a token or a key.
  91  */
  92 typedef union {
  93     key_t       si_key;
  94     key_t       si_token;
  95 } secure_info_t, *secure_info_ptr_t;
  96
  97 /*
  98  * Security Level of ports and messages.
  99  */
 100 #define PORT_NOT_SECURE         0
 101 #define MESSAGE_NOT_SECURE      0
 102
 103 #endif  /* _KEY_DEFS_ */