include/asn1.h

   1 #ifndef _SNMP_ASN1_H_
   2 #define _SNMP_ASN1_H_
   3
   4 /*
   5  * Definitions for Abstract Syntax Notation One, ASN.1
   6  * As defined in ISO/IS 8824 and ISO/IS 8825
   7  *
   8  */
   9 /**********************************************************************
  10  *
  11  *           Copyright 1997 by Carnegie Mellon University
  12  *
  13  *                       All Rights Reserved
  14  *
  15  * Permission to use, copy, modify, and distribute this software and its
  16  * documentation for any purpose and without fee is hereby granted,
  17  * provided that the above copyright notice appear in all copies and that
  18  * both that copyright notice and this permission notice appear in
  19  * supporting documentation, and that the name of CMU not be
  20  * used in advertising or publicity pertaining to distribution of the
  21  * software without specific, written prior permission.
  22  *
  23  * CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  24  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  25  * CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  26  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  27  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  28  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  29  * SOFTWARE.
  30  *
  31  * $Id: asn1.h,v 1.7 1998/02/22 11:51:06 kostas Exp $
  32  *
  33  **********************************************************************/
  34
  35 #ifndef EIGHTBIT_SUBIDS
  36 typedef u_int   oid;
  37 #define MAX_SUBID   0xFFFFFFFF
  38 #else
  39 typedef u_char  oid;
  40 #define MAX_SUBID   0xFF
  41 #endif
  42
  43 #define MAX_OID_LEN         128 /* max subid's in an oid, per SNMP spec. */
  44
  45 #define ASN_BOOLEAN         (0x01)
  46 #define ASN_INTEGER         (0x02)
  47 #define ASN_BIT_STR         (0x03)
  48 #define ASN_OCTET_STR       (0x04)
  49 #define ASN_NULL            (0x05)
  50 #define ASN_OBJECT_ID       (0x06)
  51 #define ASN_SEQUENCE        (0x10)
  52 #define ASN_SET             (0x11)
  53
  54 #define ASN_UNIVERSAL       (0x00)
  55 #define ASN_APPLICATION     (0x40)
  56 #define ASN_CONTEXT         (0x80)
  57 #define ASN_PRIVATE         (0xC0)
  58
  59 #define ASN_PRIMITIVE       (0x00)
  60 #define ASN_CONSTRUCTOR     (0x20)
  61
  62 #define ASN_LONG_LEN        (0x80)
  63 #define ASN_EXTENSION_ID    (0x1F)
  64 #define ASN_BIT8            (0x80)
  65
  66 #define IS_CONSTRUCTOR(byte)    ((byte) & ASN_CONSTRUCTOR)
  67 #define IS_EXTENSION_ID(byte)   (((byte) & ASN_EXTENSION_ID) == ASN_EXTENSION_ID)
  68
  69 #ifdef __cplusplus
  70 extern "C" {
  71 #endif
  72
  73 u_char  *asn_build_header(u_char *, int *, u_char, int);
  74 u_char  *asn_parse_int(u_char *, int *, u_char *, int *, int);
  75 u_char  *asn_parse_unsigned_int(u_char *, int *, u_char *, u_int *, int);
  76 u_char  *asn_build_int(u_char *, int *, u_char, int *, int);
  77 u_char  *asn_build_unsigned_int(u_char *, int *, u_char, u_int *, int);
  78 u_char  *asn_parse_string(u_char *, int *, u_char *, u_char *, int *);
  79 u_char  *asn_build_string(u_char *, int *, u_char, u_char *, int);
  80 u_char  *asn_parse_header(u_char *, int *, u_char *);
  81 u_char  *asn_build_header_with_truth(u_char *, int *, u_char, int, int);
  82
  83 u_char  *asn_parse_length(u_char *, u_int *);
  84 u_char  *asn_build_length(u_char *, int *, int, int);
  85 u_char  *asn_parse_objid(u_char *, int *, u_char *, oid *, int *);
  86 u_char  *asn_build_objid(u_char *, int *, u_char, oid *, int);
  87 u_char  *asn_parse_null(u_char *, int *, u_char *);
  88 u_char  *asn_build_null(u_char *, int *, u_char);
  89
  90 u_char *asn_parse_bitstring(u_char *, int *, u_char *, u_char *, int *);
  91 u_char *asn_build_bitstring(u_char *, int *, u_char, u_char *, int);
  92
  93 u_char *asn_build_exception(u_char *, int *, u_char);
  94
  95 #ifdef __cplusplus
  96 }
  97 #endif
  98
  99 #endif /* _SNMP_ASN1_H_ */