/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- * GXSNMP -- An snmp mangament application * Copyright (C) 1998 Gregory McLean & Jochen Friedrich * Beholder RMON ethernet network monitor,Copyright (C) 1993 DNPAP group * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include #ifndef _GXSNMP_ASN1_H_ #define _GXSNMP_ASN1_H_ /* ASN1 Class */ typedef enum { GXSNMP_ASN1_UNI = 0, /* Universal */ GXSNMP_ASN1_APL = 1, /* Application */ GXSNMP_ASN1_CTX = 2, /* Context */ GXSNMP_ASN1_PRV = 3 /* Private */ } GxsnmpAsn1Class; /* ASN1 Tag */ typedef enum { GXSNMP_ASN1_EOC = 0, /* End Of Contents */ GXSNMP_ASN1_BOL = 1, /* Boolean */ GXSNMP_ASN1_INT = 2, /* Integer */ GXSNMP_ASN1_BTS = 3, /* Bit String */ GXSNMP_ASN1_OTS = 4, /* Octet String */ GXSNMP_ASN1_NUL = 5, /* Null */ GXSNMP_ASN1_OJI = 6, /* Object Identifier */ GXSNMP_ASN1_OJD = 7, /* Object Description */ GXSNMP_ASN1_EXT = 8, /* External */ GXSNMP_ASN1_SEQ = 16, /* Sequence */ GXSNMP_ASN1_SET = 17, /* Set */ GXSNMP_ASN1_NUMSTR = 18, /* Numerical String */ GXSNMP_ASN1_PRNSTR = 19, /* Printable String */ GXSNMP_ASN1_TEXSTR = 20, /* Teletext String */ GXSNMP_ASN1_VIDSTR = 21, /* Video String */ GXSNMP_ASN1_IA5STR = 22, /* IA5 String */ GXSNMP_ASN1_UNITIM = 23, /* Universal Time */ GXSNMP_ASN1_GENTIM = 24, /* General Time */ GXSNMP_ASN1_GRASTR = 25, /* Graphical String */ GXSNMP_ASN1_VISSTR = 26, /* Visible String */ GXSNMP_ASN1_GENSTR = 27 /* General String */ } GxsnmpAsn1Tag; /* ASN1 Primitie / Constructed */ typedef enum { GXSNMP_ASN1_PRI = 0, /* Primitive */ GXSNMP_ASN1_CON = 1 /* Constructed */ } GxsnmpAsn1Constructed; /* Mode to open ASN11 */ typedef enum { GXSNMP_ASN1_ENC = 0, /* encoding */ GXSNMP_ASN1_DEC = 1 /* decoding */ } GxsnmpAsn1Mode; typedef enum { GXSNMP_ASN1_ERR_NOERROR = 0, /* No error */ GXSNMP_ASN1_ERR_ENC_FULL = 1, /* Encoding Overrun */ GXSNMP_ASN1_ERR_DEC_EMPTY = 2, /* Decoding Underrun */ GXSNMP_ASN1_ERR_DEC_EOC_MISMATCH = 3, GXSNMP_ASN1_ERR_DEC_LENGTH_MISMATCH = 4, GXSNMP_ASN1_ERR_DEC_BADVALUE = 5, /* Decoding Overflow */ GXSNMP_ASN1_ERR_ENC_BADVALUE = 6 /* Invalid OID */ } GxsnmpAsn1Error; typedef struct _GxsnmpAsn1 GxsnmpAsn1; struct _GxsnmpAsn1 { /* ASN1 object */ guchar *pointer; /* Octet just encoded or to be decoded */ guchar *begin; /* First octet */ guchar *end; /* Octet after last octet */ GxsnmpAsn1Error error; /* Error condition */ }; GxsnmpAsn1* gxsnmp_asn1_new (guchar *buf, guint len, GxsnmpAsn1Mode mode); void gxsnmp_asn1_destroy (GxsnmpAsn1 *asn1, guchar **buf, guint *len); gboolean gxsnmp_asn1_octet_encode (GxsnmpAsn1 *asn1, guchar ch); gboolean gxsnmp_asn1_octet_decode (GxsnmpAsn1 *asn1, guchar *ch); gboolean gxsnmp_asn1_tag_encode (GxsnmpAsn1 *asn1, GxsnmpAsn1Tag tag); gboolean gxsnmp_asn1_tag_decode (GxsnmpAsn1 *asn1, GxsnmpAsn1Tag *tag); gboolean gxsnmp_asn1_id_encode (GxsnmpAsn1 *asn1, GxsnmpAsn1Class cls, GxsnmpAsn1Constructed con, GxsnmpAsn1Tag tag); gboolean gxsnmp_asn1_id_decode (GxsnmpAsn1 *asn1, GxsnmpAsn1Class *cls, GxsnmpAsn1Constructed *con, GxsnmpAsn1Tag *tag); gboolean gxsnmp_asn1_length_encode (GxsnmpAsn1 *asn1, guint def, guint len); gboolean gxsnmp_asn1_length_decode (GxsnmpAsn1 *asn1, guint *def, guint *len); gboolean gxsnmp_asn1_header_encode (GxsnmpAsn1 *asn1, guchar *eoc, GxsnmpAsn1Class cls, GxsnmpAsn1Constructed con, GxsnmpAsn1Tag tag); gboolean gxsnmp_asn1_header_decode (GxsnmpAsn1 *asn1, guchar **eoc, GxsnmpAsn1Class *cls, GxsnmpAsn1Constructed *con, GxsnmpAsn1Tag *tag); gboolean gxsnmp_asn1_eoc (GxsnmpAsn1 *asn1, guchar *eoc); gboolean gxsnmp_asn1_eoc_encode (GxsnmpAsn1 *asn1, guchar **eoc); gboolean gxsnmp_asn1_eoc_decode (GxsnmpAsn1 *asn1, guchar *eoc); gboolean gxsnmp_asn1_null_encode (GxsnmpAsn1 *asn1, guchar **eoc); gboolean gxsnmp_asn1_null_decode (GxsnmpAsn1 *asn1, guchar *eoc); gboolean gxsnmp_asn1_boolean_encode (GxsnmpAsn1 *asn1, guchar **eoc, gboolean bool); gboolean gxsnmp_asn1_boolean_decode (GxsnmpAsn1 *asn1, guchar *eoc, gboolean *bool); gboolean gxsnmp_asn1_int_encode (GxsnmpAsn1 *asn1, guchar **eoc, gint integen); gboolean gxsnmp_asn1_int_decode (GxsnmpAsn1 *asn1, guchar *eoc, gint *integer); gboolean gxsnmp_asn1_long_encode (GxsnmpAsn1 *asn1, guchar **eoc, glong integer); gboolean gxsnmp_asn1_long_decode (GxsnmpAsn1 *asn1, guchar *eoc, glong *integer); gboolean gxsnmp_asn1_uint_encode (GxsnmpAsn1 *asn1, guchar **eoc, guint integer); gboolean gxsnmp_asn1_uint_decode (GxsnmpAsn1 *asn1, guchar *eoc, guint *integer); gboolean gxsnmp_asn1_ulong_encode (GxsnmpAsn1 *asn1, guchar **eoc, gulong integer); gboolean gxsnmp_asn1_ulong_decode (GxsnmpAsn1 *asn1, guchar *eoc, gulong *integer); gboolean gxsnmp_asn1_bits_encode (GxsnmpAsn1 *asn1, guchar **eoc, guchar *bits, guint len, guchar unused); gboolean gxsnmp_asn1_bits_decode (GxsnmpAsn1 *asn1, guchar *eoc, guchar **bits, guint *len, guchar *unused); gboolean gxsnmp_asn1_octets_encode (GxsnmpAsn1 *asn1, guchar **eoc, guchar *octs, guint len); gboolean gxsnmp_asn1_octets_decode (GxsnmpAsn1 *asn1, guchar *eoc, guchar **octs, guint *len); gboolean gxsnmp_asn1_subid_encode (GxsnmpAsn1 *asn1, gulong subid); gboolean gxsnmp_asn1_subid_decode (GxsnmpAsn1 *asn1, gulong *subid); gboolean gxsnmp_asn1_oid_encode (GxsnmpAsn1 *asn1, guchar **eoc, gulong *oid, guint len); gboolean gxsnmp_asn1_oid_decode (GxsnmpAsn1 *asn1, guchar *eoc, gulong **oid, guint *len); #endif