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/*************************************************/
/* File: x509_asn1.h */
/* Description: list of exported object by */
/* "x509_asn1.c" */
/*************************************************/
#ifndef _GNUTLS_ASN1_H
#define _GNUTLS_ASN1_H
#define PARSE_MODE_CHECK 1
#define PARSE_MODE_CREATE 2
/* List of constants for field type of typedef node_asn */
#define TYPE_CONSTANT 1
#define TYPE_IDENTIFIER 2
#define TYPE_INTEGER 3
#define TYPE_BOOLEAN 4
#define TYPE_SEQUENCE 5
#define TYPE_BIT_STRING 6
#define TYPE_OCTET_STRING 7
#define TYPE_TAG 8
#define TYPE_DEFAULT 9
#define TYPE_SIZE 10
#define TYPE_SEQUENCE_OF 11
#define TYPE_OBJECT_ID 12
#define TYPE_ANY 13
#define TYPE_SET 14
#define TYPE_SET_OF 15
#define TYPE_DEFINITIONS 16
#define TYPE_TIME 17
#define TYPE_CHOICE 18
#define TYPE_IMPORTS 19
#define TYPE_NULL 20
#define TYPE_ENUMERATED 21
/***********************************************************************/
/* List of constants for specify better the type of typedef node_asn. */
/***********************************************************************/
/* Used with TYPE_TAG */
#define CONST_UNIVERSAL (1<<8)
#define CONST_PRIVATE (1<<9)
#define CONST_APPLICATION (1<<10)
#define CONST_EXPLICIT (1<<11)
#define CONST_IMPLICIT (1<<12)
#define CONST_TAG (1<<13) /* Used in ASN.1 assignement */
#define CONST_OPTION (1<<14)
#define CONST_DEFAULT (1<<15)
#define CONST_TRUE (1<<16)
#define CONST_FALSE (1<<17)
#define CONST_LIST (1<<18) /* Used with TYPE_INTEGER and TYPE_BIT_STRING */
#define CONST_MIN_MAX (1<<19)
#define CONST_1_PARAM (1<<20)
#define CONST_SIZE (1<<21)
#define CONST_DEFINED_BY (1<<22)
#define CONST_GENERALIZED (1<<23)
#define CONST_UTC (1<<24)
#define CONST_IMPORTS (1<<25)
#define CONST_NOT_USED (1<<26)
#define CONST_SET (1<<27)
#define CONST_ASSIGN (1<<28)
#define CONST_DOWN (1<<29)
#define CONST_RIGHT (1<<30)
#define ASN_OK 0
#define ASN_FILE_NOT_FOUND 1
#define ASN_ELEMENT_NOT_FOUND 2
#define ASN_IDENTIFIER_NOT_FOUND 3
#define ASN_DER_ERROR 4
#define ASN_VALUE_NOT_FOUND 5
#define ASN_GENERIC_ERROR 6
#define ASN_VALUE_NOT_VALID 7
#define ASN_TAG_ERROR 8
#define ASN_TAG_IMPLICIT 9
#define ASN_ERROR_TYPE_ANY 10
#define ASN_SYNTAX_ERROR 11
#define ASN_MEM_ERROR 12
#define ASN_DER_OVERFLOW 13
/******************************************************/
/* Structure definition used for the node of the tree */
/* that rappresent an ASN.1 DEFINITION. */
/******************************************************/
typedef struct node_asn_struct{
char *name; /* Node name */
unsigned int type; /* Node type */
unsigned char *value; /* Node value */
struct node_asn_struct *down; /* Pointer to the son node */
struct node_asn_struct *right; /* Pointer to the brother node */
struct node_asn_struct *left; /* Pointer to the next list element */
} node_asn;
typedef struct static_struct_asn{
char *name; /* Node name */
unsigned int type; /* Node type */
unsigned char *value; /* Node value */
} static_asn;
/****************************************/
/* Returns the first 8 bits. */
/* Used with the field type of node_asn */
/****************************************/
#define type_field(x) (x&0xFF)
/***************************************/
/* Functions used by ASN.1 parser */
/***************************************/
node_asn *
_asn1_add_node(unsigned int type);
node_asn *
_asn1_set_value(node_asn *node,unsigned char *value,unsigned int len);
node_asn *
_asn1_set_name(node_asn *node,char *name);
node_asn *
_asn1_set_right(node_asn *node,node_asn *right);
node_asn *
_asn1_get_right(node_asn *node);
node_asn *
_asn1_get_last_right(node_asn *node);
node_asn *
_asn1_set_down(node_asn *node,node_asn *down);
char *
_asn1_get_name(node_asn *node);
node_asn *
_asn1_get_down(node_asn *node);
node_asn *
_asn1_mod_type(node_asn *node,unsigned int value);
void
_asn1_append_tree(node_asn *node);
node_asn *
_asn1_find_node(node_asn *pointer,char *name);
node_asn *
_asn1_find_up(node_asn *node);
int
asn1_parser_asn1(char *file_name,node_asn **pointer);
int
asn1_create_structure(node_asn *root,char *source_name,node_asn **pointer,
char *dest_name);
int
asn1_delete_structure(node_asn *root);
int
asn1_write_value(node_asn *root,char *name,unsigned char *value,int len);
int
asn1_read_value(node_asn *root,char *name,unsigned char *value,int *len);
int
asn1_create_tree(const static_asn *root,node_asn **pointer);
#endif
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