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Diffstat (limited to 'lib/minitasn1/int.h')
| -rw-r--r-- | lib/minitasn1/int.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/lib/minitasn1/int.h b/lib/minitasn1/int.h new file mode 100644 index 0000000..57f1efd --- /dev/null +++ b/lib/minitasn1/int.h @@ -0,0 +1,221 @@ +/* + * Copyright (C) 2002-2021 Free Software Foundation, Inc. + * + * This file is part of LIBTASN1. + * + * The LIBTASN1 library is free software; you can redistribute it + * and/or modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA + */ + +#ifndef INT_H +#define INT_H + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <stdint.h> + +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif + +#include <libtasn1.h> + +#define ASN1_SMALL_VALUE_SIZE 16 + +/* This structure is also in libtasn1.h, but then contains less + fields. You cannot make any modifications to these first fields + without breaking ABI. */ +struct asn1_node_st +{ + /* public fields: */ + char name[ASN1_MAX_NAME_SIZE + 1]; /* Node name */ + unsigned int name_hash; + unsigned int type; /* Node type */ + unsigned char *value; /* Node value */ + int value_len; + asn1_node down; /* Pointer to the son node */ + asn1_node right; /* Pointer to the brother node */ + asn1_node left; /* Pointer to the next list element */ + /* private fields: */ + unsigned char small_value[ASN1_SMALL_VALUE_SIZE]; /* For small values */ + + /* values used during decoding/coding */ + int tmp_ival; + unsigned start; /* the start of the DER sequence - if decoded */ + unsigned end; /* the end of the DER sequence - if decoded */ +}; + +typedef struct tag_and_class_st +{ + unsigned tag; + unsigned class; + const char *desc; +} tag_and_class_st; + +/* the types that are handled in _asn1_tags */ +#define CASE_HANDLED_ETYPES \ + case ASN1_ETYPE_NULL: \ + case ASN1_ETYPE_BOOLEAN: \ + case ASN1_ETYPE_INTEGER: \ + case ASN1_ETYPE_ENUMERATED: \ + case ASN1_ETYPE_OBJECT_ID: \ + case ASN1_ETYPE_OCTET_STRING: \ + case ASN1_ETYPE_GENERALSTRING: \ + case ASN1_ETYPE_NUMERIC_STRING: \ + case ASN1_ETYPE_IA5_STRING: \ + case ASN1_ETYPE_TELETEX_STRING: \ + case ASN1_ETYPE_PRINTABLE_STRING: \ + case ASN1_ETYPE_UNIVERSAL_STRING: \ + case ASN1_ETYPE_BMP_STRING: \ + case ASN1_ETYPE_UTF8_STRING: \ + case ASN1_ETYPE_VISIBLE_STRING: \ + case ASN1_ETYPE_BIT_STRING: \ + case ASN1_ETYPE_SEQUENCE: \ + case ASN1_ETYPE_SEQUENCE_OF: \ + case ASN1_ETYPE_SET: \ + case ASN1_ETYPE_UTC_TIME: \ + case ASN1_ETYPE_GENERALIZED_TIME: \ + case ASN1_ETYPE_SET_OF + +#define ETYPE_TAG(etype) (_asn1_tags[etype].tag) +#define ETYPE_CLASS(etype) (_asn1_tags[etype].class) +#define ETYPE_OK(etype) (((etype) != ASN1_ETYPE_INVALID && \ + (etype) <= _asn1_tags_size && \ + _asn1_tags[(etype)].desc != NULL)?1:0) + +#define ETYPE_IS_STRING(etype) ((etype == ASN1_ETYPE_GENERALSTRING || \ + etype == ASN1_ETYPE_NUMERIC_STRING || etype == ASN1_ETYPE_IA5_STRING || \ + etype == ASN1_ETYPE_TELETEX_STRING || etype == ASN1_ETYPE_PRINTABLE_STRING || \ + etype == ASN1_ETYPE_UNIVERSAL_STRING || etype == ASN1_ETYPE_BMP_STRING || \ + etype == ASN1_ETYPE_UTF8_STRING || etype == ASN1_ETYPE_VISIBLE_STRING || \ + etype == ASN1_ETYPE_OCTET_STRING)?1:0) + +extern unsigned int _asn1_tags_size; +extern const tag_and_class_st _asn1_tags[]; + +#define _asn1_strlen(s) strlen((const char *) s) +#define _asn1_strtol(n,e,b) strtol((const char *) n, e, b) +#define _asn1_strtoul(n,e,b) strtoul((const char *) n, e, b) +#define _asn1_strcmp(a,b) strcmp((const char *)a, (const char *)b) +#define _asn1_strcpy(a,b) strcpy((char *)a, (const char *)b) +#define _asn1_strcat(a,b) strcat((char *)a, (const char *)b) + +#if SIZEOF_UNSIGNED_LONG_INT == 8 +# define _asn1_strtou64(n,e,b) strtoul((const char *) n, e, b) +#else +# define _asn1_strtou64(n,e,b) strtoull((const char *) n, e, b) +#endif + +#define MAX_LOG_SIZE 1024 /* maximum number of characters of a log message */ + +/* Define used for visiting trees. */ +#define UP 1 +#define RIGHT 2 +#define DOWN 3 + +/***********************************************************************/ +/* List of constants to better specify the type of typedef asn1_node_st. */ +/***********************************************************************/ +/* Used with TYPE_TAG */ +#define CONST_UNIVERSAL (1U<<8) +#define CONST_PRIVATE (1U<<9) +#define CONST_APPLICATION (1U<<10) +#define CONST_EXPLICIT (1U<<11) +#define CONST_IMPLICIT (1U<<12) + +#define CONST_TAG (1U<<13) /* Used in ASN.1 assignement */ +#define CONST_OPTION (1U<<14) +#define CONST_DEFAULT (1U<<15) +#define CONST_TRUE (1U<<16) +#define CONST_FALSE (1U<<17) + +#define CONST_LIST (1U<<18) /* Used with TYPE_INTEGER and TYPE_BIT_STRING */ +#define CONST_MIN_MAX (1U<<19) + +#define CONST_1_PARAM (1U<<20) + +#define CONST_SIZE (1U<<21) + +#define CONST_DEFINED_BY (1U<<22) + +/* Those two are deprecated and used for backwards compatibility */ +#define CONST_GENERALIZED (1U<<23) +#define CONST_UTC (1U<<24) + +/* #define CONST_IMPORTS (1U<<25) */ + +#define CONST_NOT_USED (1U<<26) +#define CONST_SET (1U<<27) +#define CONST_ASSIGN (1U<<28) + +#define CONST_DOWN (1U<<29) +#define CONST_RIGHT (1U<<30) + + +#define ASN1_ETYPE_TIME 17 +/****************************************/ +/* Returns the first 8 bits. */ +/* Used with the field type of asn1_node_st */ +/****************************************/ +inline static unsigned int +type_field (unsigned int ntype) +{ + return (ntype & 0xff); +} + +/* To convert old types from a static structure */ +inline static unsigned int +convert_old_type (unsigned int ntype) +{ + unsigned int type = ntype & 0xff; + if (type == ASN1_ETYPE_TIME) + { + if (ntype & CONST_UTC) + type = ASN1_ETYPE_UTC_TIME; + else + type = ASN1_ETYPE_GENERALIZED_TIME; + + ntype &= ~(CONST_UTC | CONST_GENERALIZED); + ntype &= 0xffffff00; + ntype |= type; + + return ntype; + } + else + return ntype; +} + +static inline +void *_asn1_realloc(void *ptr, size_t size) +{ + void *ret; + + if (size == 0) + return ptr; + + ret = realloc(ptr, size); + if (ret == NULL) + { + free(ptr); + } + return ret; +} + +#endif /* INT_H */ |