mach/servers/key_defs.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Mach Operating System
  24  * Copyright (c) 1987 Carnegie-Mellon University
  25  * All rights reserved.  The CMU software License Agreement specifies
  26  * the terms and conditions for use and redistribution.
  27  */
  28
  29 /*
  30  * Definitions of encryption keys etc..
  31  */
  32
  33 /*
  34  * HISTORY:
  35  *  5-Jun-87  Robert Sansom (rds) at Carnegie Mellon University
  36  *      Added macros to convert keys between network and host order.
  37  *
  38  * 12-Apr-87  Robert Sansom (rds) at Carnegie Mellon University
  39  *      Added KEY_IS_NULL.
  40  *
  41  *  2-Feb-87  Robert Sansom (rds) at Carnegie Mellon University
  42  *      Added KEY_EQUAL.
  43  *
  44  *  5-Nov-86  Robert Sansom (rds) at Carnegie-Mellon University
  45  *      Started.
  46  *
  47  */
  48
  49 #ifndef _KEY_DEFS_
  50 #define _KEY_DEFS_
  51
  52 /*
  53  * An encrytion key.
  54  */
  55 typedef union {
  56     unsigned char       key_bytes[16];
  57     unsigned long       key_longs[4];
  58 } key_t, *key_ptr_t;
  59
  60 #define KEY_EQUAL(key1, key2)                                   \
  61     ((key1.key_longs[0] == key2.key_longs[0])                   \
  62         && (key1.key_longs[1] == key2.key_longs[1])             \
  63         && (key1.key_longs[2] == key2.key_longs[2])             \
  64         && (key1.key_longs[3] == key2.key_longs[3]))
  65
  66 #define KEY_IS_NULL(key)                                        \
  67     (((key).key_longs[0] == 0) && ((key).key_longs[1] == 0)     \
  68         && ((key).key_longs[2] == 0) && ((key).key_longs[3] == 0))
  69
  70
  71 /*
  72  * Macros to convert keys between network and host byte order.
  73  */
  74 #define NTOH_KEY(key) {                                                 \
  75     (key).key_longs[0] = ntohl((key).key_longs[0]);                     \
  76     (key).key_longs[1] = ntohl((key).key_longs[1]);                     \
  77     (key).key_longs[2] = ntohl((key).key_longs[2]);                     \
  78     (key).key_longs[3] = ntohl((key).key_longs[3]);                     \
  79 }
  80
  81 #define HTON_KEY(key) {                                                 \
  82     (key).key_longs[0] = htonl((key).key_longs[0]);                     \
  83     (key).key_longs[1] = htonl((key).key_longs[1]);                     \
  84     (key).key_longs[2] = htonl((key).key_longs[2]);                     \
  85     (key).key_longs[3] = htonl((key).key_longs[3]);                     \
  86 }
  87
  88 /*
  89  * Structure used to transmit or store a token or a key.
  90  */
  91 typedef union {
  92     key_t       si_key;
  93     key_t       si_token;
  94 } secure_info_t, *secure_info_ptr_t;
  95
  96 /*
  97  * Security Level of ports and messages.
  98  */
  99 #define PORT_NOT_SECURE         0
 100 #define MESSAGE_NOT_SECURE      0
 101
 102 #endif  /* _KEY_DEFS_ */