72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
|
|
* ASN.1 DER parsing
|
|
* Copyright (c) 2006, Jouni Malinen <j@w1.fi>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of BSD
|
|
* license.
|
|
*
|
|
* See README and COPYING for more details.
|
|
*/
|
|
|
|
#ifndef ASN1_H
|
|
#define ASN1_H
|
|
|
|
#define ASN1_TAG_EOC 0x00 /* not used with DER */
|
|
#define ASN1_TAG_BOOLEAN 0x01
|
|
#define ASN1_TAG_INTEGER 0x02
|
|
#define ASN1_TAG_BITSTRING 0x03
|
|
#define ASN1_TAG_OCTETSTRING 0x04
|
|
#define ASN1_TAG_NULL 0x05
|
|
#define ASN1_TAG_OID 0x06
|
|
#define ASN1_TAG_OBJECT_DESCRIPTOR 0x07 /* not yet parsed */
|
|
#define ASN1_TAG_EXTERNAL 0x08 /* not yet parsed */
|
|
#define ASN1_TAG_REAL 0x09 /* not yet parsed */
|
|
#define ASN1_TAG_ENUMERATED 0x0A /* not yet parsed */
|
|
#define ASN1_TAG_UTF8STRING 0x0C /* not yet parsed */
|
|
#define ANS1_TAG_RELATIVE_OID 0x0D
|
|
#define ASN1_TAG_SEQUENCE 0x10 /* shall be constructed */
|
|
#define ASN1_TAG_SET 0x11
|
|
#define ASN1_TAG_NUMERICSTRING 0x12 /* not yet parsed */
|
|
#define ASN1_TAG_PRINTABLESTRING 0x13
|
|
#define ASN1_TAG_TG1STRING 0x14 /* not yet parsed */
|
|
#define ASN1_TAG_VIDEOTEXSTRING 0x15 /* not yet parsed */
|
|
#define ASN1_TAG_IA5STRING 0x16
|
|
#define ASN1_TAG_UTCTIME 0x17
|
|
#define ASN1_TAG_GENERALIZEDTIME 0x18 /* not yet parsed */
|
|
#define ASN1_TAG_GRAPHICSTRING 0x19 /* not yet parsed */
|
|
#define ASN1_TAG_VISIBLESTRING 0x1A
|
|
#define ASN1_TAG_GENERALSTRING 0x1B /* not yet parsed */
|
|
#define ASN1_TAG_UNIVERSALSTRING 0x1C /* not yet parsed */
|
|
#define ASN1_TAG_BMPSTRING 0x1D /* not yet parsed */
|
|
|
|
#define ASN1_CLASS_UNIVERSAL 0
|
|
#define ASN1_CLASS_APPLICATION 1
|
|
#define ASN1_CLASS_CONTEXT_SPECIFIC 2
|
|
#define ASN1_CLASS_PRIVATE 3
|
|
|
|
|
|
struct asn1_hdr {
|
|
const u8 *payload;
|
|
u8 identifier, class, constructed;
|
|
unsigned int tag, length;
|
|
};
|
|
|
|
#define ASN1_MAX_OID_LEN 20
|
|
struct asn1_oid {
|
|
unsigned long oid[ASN1_MAX_OID_LEN];
|
|
size_t len;
|
|
};
|
|
|
|
|
|
int asn1_get_next(const u8 *buf, size_t len, struct asn1_hdr *hdr);
|
|
int asn1_get_oid(const u8 *buf, size_t len, struct asn1_oid *oid,
|
|
const u8 **next);
|
|
void asn1_oid_to_str(struct asn1_oid *oid, char *buf, size_t len);
|
|
unsigned long asn1_bit_string_to_long(const u8 *buf, size_t len);
|
|
|
|
#endif /* ASN1_H */
|