lib/minitasn1/int.h

   1 /*
   2  * Copyright (C) 2002-2012 Free Software Foundation, Inc.
   3  *
   4  * This file is part of LIBTASN1.
   5  *
   6  * The LIBTASN1 library is free software; you can redistribute it
   7  * and/or modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19  * 02110-1301, USA
  20  */
  21
  22 #ifndef INT_H
  23 #define INT_H
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #endif
  28
  29 #include <string.h>
  30 #include <stdlib.h>
  31 #include <stdio.h>
  32 #include <ctype.h>
  33 #include <stdint.h>
  34
  35 #ifdef HAVE_SYS_TYPES_H
  36 #include <sys/types.h>
  37 #endif
  38
  39 #include <libtasn1.h>
  40
  41 #define ASN1_SMALL_VALUE_SIZE 16
  42
  43 /* This structure is also in libtasn1.h, but then contains less
  44    fields.  You cannot make any modifications to these first fields
  45    without breaking ABI.  */
  46 struct asn1_node_st
  47 {
  48   /* public fields: */
  49   char name[ASN1_MAX_NAME_SIZE+1];                      /* Node name */
  50   unsigned int name_hash;
  51   unsigned int type;            /* Node type */
  52   unsigned char *value;         /* Node value */
  53   int value_len;
  54   asn1_node down;               /* Pointer to the son node */
  55   asn1_node right;              /* Pointer to the brother node */
  56   asn1_node left;               /* Pointer to the next list element */
  57   /* private fields: */
  58   unsigned char small_value[ASN1_SMALL_VALUE_SIZE];     /* For small values */
  59 };
  60
  61 typedef struct tag_and_class_st {
  62   unsigned tag;
  63   unsigned class;
  64   const char* desc;
  65 } tag_and_class_st;
  66
  67 /* the types that are handled in _asn1_tags */
  68 #define CASE_HANDLED_ETYPES \
  69         case ASN1_ETYPE_NULL: \
  70         case ASN1_ETYPE_BOOLEAN: \
  71         case ASN1_ETYPE_INTEGER: \
  72         case ASN1_ETYPE_ENUMERATED: \
  73         case ASN1_ETYPE_OBJECT_ID: \
  74         case ASN1_ETYPE_OCTET_STRING: \
  75         case ASN1_ETYPE_GENERALSTRING: \
  76         case ASN1_ETYPE_NUMERIC_STRING: \
  77         case ASN1_ETYPE_IA5_STRING: \
  78         case ASN1_ETYPE_TELETEX_STRING: \
  79         case ASN1_ETYPE_PRINTABLE_STRING: \
  80         case ASN1_ETYPE_UNIVERSAL_STRING: \
  81         case ASN1_ETYPE_BMP_STRING: \
  82         case ASN1_ETYPE_UTF8_STRING: \
  83         case ASN1_ETYPE_VISIBLE_STRING: \
  84         case ASN1_ETYPE_BIT_STRING: \
  85         case ASN1_ETYPE_SEQUENCE: \
  86         case ASN1_ETYPE_SEQUENCE_OF: \
  87         case ASN1_ETYPE_SET: \
  88         case ASN1_ETYPE_UTC_TIME: \
  89         case ASN1_ETYPE_GENERALIZED_TIME: \
  90         case ASN1_ETYPE_SET_OF
  91
  92 #define ETYPE_TAG(etype) (_asn1_tags[etype].tag)
  93 #define ETYPE_CLASS(etype) (_asn1_tags[etype].class)
  94 #define ETYPE_OK(etype) ((etype != ASN1_ETYPE_INVALID && \
  95                           etype <= _asn1_tags_size && \
  96                           _asn1_tags[etype].desc != NULL)?1:0)
  97
  98 extern unsigned int _asn1_tags_size;
  99 extern const tag_and_class_st _asn1_tags[];
 100
 101 #define _asn1_strlen(s) strlen((const char *) s)
 102 #define _asn1_strtol(n,e,b) strtol((const char *) n, e, b)
 103 #define _asn1_strtoul(n,e,b) strtoul((const char *) n, e, b)
 104 #define _asn1_strcmp(a,b) strcmp((const char *)a, (const char *)b)
 105 #define _asn1_strcpy(a,b) strcpy((char *)a, (const char *)b)
 106 #define _asn1_strcat(a,b) strcat((char *)a, (const char *)b)
 107
 108 #define MAX_LOG_SIZE 1024       /* maximum number of characters of a log message */
 109
 110 /* Define used for visiting trees. */
 111 #define UP     1
 112 #define RIGHT  2
 113 #define DOWN   3
 114
 115 /***********************************************************************/
 116 /* List of constants to better specify the type of typedef asn1_node_st.   */
 117 /***********************************************************************/
 118 /*  Used with TYPE_TAG  */
 119 #define CONST_UNIVERSAL   (1<<8)
 120 #define CONST_PRIVATE     (1<<9)
 121 #define CONST_APPLICATION (1<<10)
 122 #define CONST_EXPLICIT    (1<<11)
 123 #define CONST_IMPLICIT    (1<<12)
 124
 125 #define CONST_TAG         (1<<13)       /*  Used in ASN.1 assignement  */
 126 #define CONST_OPTION      (1<<14)
 127 #define CONST_DEFAULT     (1<<15)
 128 #define CONST_TRUE        (1<<16)
 129 #define CONST_FALSE       (1<<17)
 130
 131 #define CONST_LIST        (1<<18)       /*  Used with TYPE_INTEGER and TYPE_BIT_STRING  */
 132 #define CONST_MIN_MAX     (1<<19)
 133
 134 #define CONST_1_PARAM     (1<<20)
 135
 136 #define CONST_SIZE        (1<<21)
 137
 138 #define CONST_DEFINED_BY  (1<<22)
 139
 140 /* Those two are deprecated and used for backwards compatibility */
 141 #define CONST_GENERALIZED (1<<23)
 142 #define CONST_UTC         (1<<24)
 143
 144 /* #define CONST_IMPORTS     (1<<25) */
 145
 146 #define CONST_NOT_USED    (1<<26)
 147 #define CONST_SET         (1<<27)
 148 #define CONST_ASSIGN      (1<<28)
 149
 150 #define CONST_DOWN        (1<<29)
 151 #define CONST_RIGHT       (1<<30)
 152
 153
 154 #define ASN1_ETYPE_TIME 17
 155 /****************************************/
 156 /* Returns the first 8 bits.            */
 157 /* Used with the field type of asn1_node_st */
 158 /****************************************/
 159 inline static unsigned int type_field(unsigned int ntype)
 160 {
 161   return (ntype & 0xff);
 162 }
 163
 164 /* To convert old types from a static structure */
 165 inline static unsigned int convert_old_type(unsigned int ntype)
 166 {
 167 unsigned int type = ntype & 0xff;
 168   if (type == ASN1_ETYPE_TIME)
 169     {
 170       if (ntype & CONST_UTC)
 171         type = ASN1_ETYPE_UTC_TIME;
 172       else
 173         type = ASN1_ETYPE_GENERALIZED_TIME;
 174
 175       ntype &= ~(CONST_UTC|CONST_GENERALIZED);
 176       ntype &= 0xffffff00;
 177       ntype |= type;
 178
 179       return ntype;
 180     }
 181   else
 182     return ntype;
 183 }
 184
 185 #endif /* INT_H */