165 lines
6.9 KiB
C
165 lines
6.9 KiB
C
/* asn1.h
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* Definitions for ASN.1 BER dissection
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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*
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* Based on "g_asn1.h" from:
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*
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* GXSNMP -- An snmp mangament application
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* Copyright (C) 1998 Gregory McLean & Jochen Friedrich
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* Beholder RMON ethernet network monitor,Copyright (C) 1993 DNPAP group
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef __ASN1_H__
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#define __ASN1_H__
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#define ASN1_UNI 0 /* Universal */
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#define ASN1_APL 1 /* Application */
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#define ASN1_CTX 2 /* Context */
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#define ASN1_PRV 3 /* Private */
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#define BER_CLASS_UNI 0
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#define BER_CLASS_APP 1
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#define BER_CLASS_CON 2
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#define BER_CLASS_PRI 3
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#define BER_CLASS_ANY 99 /* dont check class nor tag */
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#define BER_UNI_TAG_EOC 0 /* 'end-of-content' */
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#define BER_UNI_TAG_BOOLEAN 1
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#define BER_UNI_TAG_INTEGER 2
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#define BER_UNI_TAG_BITSTRING 3
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#define BER_UNI_TAG_OCTETSTRING 4
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#define BER_UNI_TAG_NULL 5
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#define BER_UNI_TAG_OID 6 /* OBJECT IDENTIFIER */
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#define BER_UNI_TAG_ObjectDescriptor 7
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#define BER_UNI_TAG_EXTERNAL 8
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#define BER_UNI_TAG_REAL 9
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#define BER_UNI_TAG_ENUMERATED 10
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#define BER_UNI_TAG_EMBEDDED_PDV 11
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#define BER_UNI_TAG_UTF8String 12
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#define BER_UNI_TAG_RELATIVE_OID 13
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/* UNIVERSAL 14-15
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* Reserved for future editions of this
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* Recommendation | International Standard
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*/
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#define BER_UNI_TAG_SEQUENCE 16 /* SEQUENCE, SEQUENCE OF */
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#define BER_UNI_TAG_SET 17 /* SET, SET OF */
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/* UNIVERSAL 18-22 Character string types */
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#define BER_UNI_TAG_NumericString 18
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#define BER_UNI_TAG_PrintableString 19
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#define BER_UNI_TAG_TeletexString 20 /* TeletextString, T61String */
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#define BER_UNI_TAG_VideotexString 21
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#define BER_UNI_TAG_IA5String 22
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/* UNIVERSAL 23-24 Time types */
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#define BER_UNI_TAG_UTCTime 23
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#define BER_UNI_TAG_GeneralizedTime 24
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/* UNIVERSAL 25-30 Character string types */
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#define BER_UNI_TAG_GraphicString 25
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#define BER_UNI_TAG_VisibleString 26 /* VisibleString, ISO64String */
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#define BER_UNI_TAG_GeneralString 27
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#define BER_UNI_TAG_UniversalString 28
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#define BER_UNI_TAG_CHARACTERSTRING 29
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#define BER_UNI_TAG_BMPString 30
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/* UNIVERSAL 31- ...
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* Reserved for addenda to this Recommendation | International Standard
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*/
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/* Tag */
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#define ASN1_EOC 0 /* End Of Contents */
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#define ASN1_BOL 1 /* Boolean */
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#define ASN1_INT 2 /* Integer */
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#define ASN1_BTS 3 /* Bit String */
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#define ASN1_OTS 4 /* Octet String */
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#define ASN1_NUL 5 /* Null */
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#define ASN1_OJI 6 /* Object Identifier */
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#define ASN1_OJD 7 /* Object Description */
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#define ASN1_EXT 8 /* External */
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#define ASN1_REAL 9 /* Real */
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#define ASN1_ENUM 10 /* Enumerated */
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#define ASN1_SEQ 16 /* Sequence */
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#define ASN1_SET 17 /* Set */
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#define ASN1_NUMSTR 18 /* Numerical String */
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#define ASN1_PRNSTR 19 /* Printable String */
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#define ASN1_TEXSTR 20 /* Teletext String */
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#define ASN1_VIDSTR 21 /* Video String */
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#define ASN1_IA5STR 22 /* IA5 String */
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#define ASN1_UNITIM 23 /* Universal Time */
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#define ASN1_GENTIM 24 /* General Time */
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#define ASN1_GRASTR 25 /* Graphical String */
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#define ASN1_VISSTR 26 /* Visible String */
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#define ASN1_GENSTR 27 /* General String */
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/* Primitive / Constructed */
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#define ASN1_PRI 0 /* Primitive */
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#define ASN1_CON 1 /* Constructed */
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#define ASN1_ERR_NOERROR 0 /* no error */
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#define ASN1_ERR_EOC_MISMATCH 1
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#define ASN1_ERR_WRONG_TYPE 2 /* type not right */
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#define ASN1_ERR_LENGTH_NOT_DEFINITE 3 /* length should be definite */
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#define ASN1_ERR_LENGTH_MISMATCH 4
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#define ASN1_ERR_WRONG_LENGTH_FOR_TYPE 5 /* length wrong for type */
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typedef struct _ASN1_SCK ASN1_SCK;
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struct _ASN1_SCK
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{ /* ASN1 socket */
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tvbuff_t *tvb; /* Tvbuff whence the data comes */
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int offset; /* Current offset in tvbuff */
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};
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extern void asn1_open (ASN1_SCK *asn1, tvbuff_t *tvb, int offset);
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extern void asn1_close (ASN1_SCK *asn1, int *offset);
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extern int asn1_octet_decode (ASN1_SCK *asn1, guchar *ch);
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extern int asn1_tag_decode (ASN1_SCK *asn1, guint *tag);
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extern int asn1_id_decode (ASN1_SCK *asn1, guint *cls, guint *con, guint *tag);
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extern int asn1_id_decode1 (ASN1_SCK *asn1, guint *tag);
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extern int asn1_length_decode (ASN1_SCK *asn1, gboolean *def, guint *len);
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extern int asn1_header_decode(ASN1_SCK *asn1, guint *cls, guint *con,
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guint *tag, gboolean *defp, guint *lenp);
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extern int asn1_eoc (ASN1_SCK *asn1, int eoc);
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extern int asn1_eoc_decode (ASN1_SCK *asn1, int eoc);
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extern int asn1_null_decode (ASN1_SCK *asn1, int enc_len);
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extern int asn1_bool_decode (ASN1_SCK *asn1, int enc_len, gboolean *boolean);
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extern int asn1_int32_value_decode (ASN1_SCK *asn1, int enc_len,
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gint32 *integer);
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extern int asn1_int32_decode (ASN1_SCK *asn1, gint32 *integer, guint *nbytes);
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extern int asn1_uint32_value_decode (ASN1_SCK *asn1, int enc_len,
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guint32 *integer);
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extern int asn1_uint32_decode (ASN1_SCK *asn1, guint32 *integer, guint *nbytes);
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extern int asn1_bits_decode (ASN1_SCK *asn1, int enc_len, guchar **bits,
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guint *len, guchar *unused);
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extern int asn1_string_value_decode (ASN1_SCK *asn1, int enc_len,
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guchar **octets);
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extern int asn1_string_decode (ASN1_SCK *asn1, guchar **octets, guint *str_len,
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guint *nbytes, guint expected_tag);
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extern int asn1_octet_string_decode (ASN1_SCK *asn1, guchar **octets,
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guint *str_len, guint *nbytes);
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extern int asn1_subid_decode (ASN1_SCK *asn1, subid_t *subid);
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extern int asn1_oid_value_decode (ASN1_SCK *asn1, int enc_len, subid_t **oid,
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guint *len);
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extern int asn1_oid_decode (ASN1_SCK *asn1, subid_t **oid, guint *len,
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guint *nbytes);
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extern int asn1_sequence_decode (ASN1_SCK *asn1, guint *seq_len, guint *nbytes);
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extern const char *asn1_err_to_str (int err);
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#endif
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