include/asn1.h

   1 /*
   2  * Definitions for Abstract Syntax Notation One, ASN.1
   3  * As defined in ISO/IS 8824 and ISO/IS 8825
   4  *
   5  *
   6  */
   7 /***********************************************************
   8         Copyright 1988, 1989 by Carnegie Mellon University
   9
  10                       All Rights Reserved
  11
  12 Permission to use, copy, modify, and distribute this software and its
  13 documentation for any purpose and without fee is hereby granted,
  14 provided that the above copyright notice appear in all copies and that
  15 both that copyright notice and this permission notice appear in
  16 supporting documentation, and that the name of CMU not be
  17 used in advertising or publicity pertaining to distribution of the
  18 software without specific, written prior permission.
  19
  20 CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  21 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  22 CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  23 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  24 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  25 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  26 SOFTWARE.
  27 ******************************************************************/
  28
  29 #ifndef ASN1_H
  30 #define ASN1_H
  31
  32 /* assume someone else includes "config.h" for us */
  33 #if HAVE_SYS_TYPES_H
  34 #include <sys/types.h>
  35 #endif
  36
  37 #ifndef EIGHTBIT_SUBIDS
  38 typedef u_long oid;
  39 #define MAX_SUBID   0xFFFFFFFF
  40 #else
  41 typedef u_char oid;
  42 #define MAX_SUBID   0xFF
  43 #endif
  44
  45 #define MAX_OID_LEN         64  /* max subid's in an oid */
  46
  47 #define ASN_BOOLEAN         (0x01)
  48 #define ASN_INTEGER         (0x02)
  49 #define ASN_BIT_STR         (0x03)
  50 #define ASN_OCTET_STR       (0x04)
  51 #define ASN_NULL            (0x05)
  52 #define ASN_OBJECT_ID       (0x06)
  53 #define ASN_SEQUENCE        (0x10)
  54 #define ASN_SET             (0x11)
  55
  56 #define ASN_UNIVERSAL       (0x00)
  57 #define ASN_APPLICATION     (0x40)
  58 #define ASN_CONTEXT         (0x80)
  59 #define ASN_PRIVATE         (0xC0)
  60
  61 #define ASN_PRIMITIVE       (0x00)
  62 #define ASN_CONSTRUCTOR     (0x20)
  63
  64 #define ASN_LONG_LEN        (0x80)
  65 #define ASN_EXTENSION_ID    (0x1F)
  66 #define ASN_BIT8            (0x80)
  67
  68 #define IS_CONSTRUCTOR(byte)    ((byte) & ASN_CONSTRUCTOR)
  69 #define IS_EXTENSION_ID(byte)   (((byte) & ASN_EXTENSION_ID) == ASN_EXTENSION_ID)
  70
  71 /* 32 bit integer compatability hack */
  72 #if SIZEOF_INT == 4
  73 typedef int num32;
  74 typedef unsigned int u_num32;
  75 #elif SIZEOF_LONG == 4
  76 typedef long num32;
  77 typedef unsigned long u_num32;
  78 #else
  79 typedef long num32;             /* assume that long's are 32bit */
  80 typedef unsigned long u_num32;
  81 #endif
  82 #define NUM32LEN sizeof(num32)  /* this should always be 4 */
  83
  84 /*
  85  * internal 64 bit representation:
  86  */
  87 struct counter64 {
  88     u_num32 high;
  89     u_num32 low;
  90 };
  91
  92 extern u_char *asn_parse_int (u_char * data,
  93         int *datalength,
  94         u_char * type,
  95         long *intp,
  96         int intsize);
  97
  98 extern u_char *asn_build_int (u_char * data,
  99         int *datalength,
 100         u_char type,
 101         long *intp,
 102         int intsize);
 103
 104 extern u_char *asn_parse_unsigned_int (u_char * data,
 105         int *datalength,
 106         u_char * type,
 107         u_long * intp,
 108         int intsize);
 109
 110 extern u_char *asn_build_unsigned_int (u_char * data,
 111         int *datalength,
 112         u_char type,
 113         u_long * intp,
 114         int intsize);
 115
 116 extern u_char *asn_parse_string (u_char * data,
 117         int *datalength,
 118         u_char * type,
 119         u_char * string,
 120         int *len);
 121
 122 extern u_char *asn_build_string (u_char * data,
 123         int *datalength,
 124         u_char type,
 125         u_char * str,
 126         int len);
 127
 128 extern u_char *asn_parse_header (u_char * data,
 129         int *datalength,
 130         u_char * type);
 131
 132 extern u_char *asn_build_header (u_char * data,
 133         int *datalength,
 134         u_char type,
 135         int len);
 136
 137 extern u_char *asn_build_sequence (u_char * data,
 138         int *datalength,
 139         u_char type,
 140         int len);
 141
 142 extern u_char *asn_parse_length (u_char * data,
 143         u_long * eln);
 144
 145 extern u_char *asn_build_length (u_char * data,
 146         int *datalength,
 147         int len);
 148
 149 extern u_char *asn_parse_objid (
 150         u_char * data,
 151         int *datalength,
 152         u_char * type,
 153         oid * objid,
 154         int *objidlength);
 155
 156 extern u_char *asn_build_objid (u_char * data,
 157         int *datalength,
 158         u_char type,
 159         oid * objid,
 160         int objidlength);
 161
 162 extern u_char *asn_parse_null (u_char * data,
 163         int *datalength,
 164         u_char * type);
 165
 166 extern u_char *asn_build_null (u_char * data,
 167         int *datalength,
 168         u_char type);
 169 extern u_char *asn_parse_bitstring (u_char * data,
 170         int *datalength,
 171         u_char * type,
 172         u_char * str,
 173         int *len);
 174
 175 extern u_char *asn_build_bitstring (u_char * data,
 176         int *datalength,
 177         u_char type,
 178         u_char * str,
 179         int len);
 180
 181 extern u_char *asn_parse_unsigned_int64 (u_char * data,
 182         int *datalength,
 183         u_char * type,
 184         struct counter64 * cp,
 185         int cp_size);
 186
 187 extern u_char *asn_build_unsigned_int64 (u_char * data,
 188         int *datalength,
 189         u_char type,
 190         struct counter64 * cp,
 191         int cp_size);
 192
 193 #endif