include/asn1.h

   1 #ifndef SQUID_SNMP_ASN1_H
   2 #define SQUID_SNMP_ASN1_H
   3
   4 #include "config.h"
   5
   6 /*
   7  * Definitions for Abstract Syntax Notation One, ASN.1
   8  * As defined in ISO/IS 8824 and ISO/IS 8825
   9  *
  10  */
  11 /**********************************************************************
  12  *
  13  *           Copyright 1997 by Carnegie Mellon University
  14  *
  15  *                       All Rights Reserved
  16  *
  17  * Permission to use, copy, modify, and distribute this software and its
  18  * documentation for any purpose and without fee is hereby granted,
  19  * provided that the above copyright notice appear in all copies and that
  20  * both that copyright notice and this permission notice appear in
  21  * supporting documentation, and that the name of CMU not be
  22  * used in advertising or publicity pertaining to distribution of the
  23  * software without specific, written prior permission.
  24  *
  25  * CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  26  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  27  * CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  28  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  29  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  30  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  31  * SOFTWARE.
  32  *
  33  * $Id$
  34  *
  35  **********************************************************************/
  36
  37 #ifndef EIGHTBIT_SUBIDS
  38 typedef u_int8_t oid;
  39 #define MAX_SUBID   0xFFFFFFFF
  40 #else
  41 typedef u_char oid;
  42 #define MAX_SUBID   0xFF
  43 #endif
  44
  45 #define MAX_OID_LEN         128 /* max subid's in an oid, per SNMP spec. */
  46
  47 #define ASN_BOOLEAN         (0x01)
  48 #define ASN_INTEGER         (0x02)
  49 #define ASN_BIT_STR         (0x03)
  50 #define ASN_OCTET_STR       (0x04)
  51 #define ASN_NULL            (0x05)
  52 #define ASN_OBJECT_ID       (0x06)
  53 #define ASN_SEQUENCE        (0x10)
  54 #define ASN_SET             (0x11)
  55
  56 #define ASN_UNIVERSAL       (0x00)
  57 #define ASN_APPLICATION     (0x40)
  58 #define ASN_CONTEXT         (0x80)
  59 #define ASN_PRIVATE         (0xC0)
  60
  61 #define ASN_PRIMITIVE       (0x00)
  62 #define ASN_CONSTRUCTOR     (0x20)
  63
  64 #define ASN_LONG_LEN        (0x80)
  65 #define ASN_EXTENSION_ID    (0x1F)
  66 #define ASN_BIT8            (0x80)
  67
  68 #define IS_CONSTRUCTOR(byte)    ((byte) & ASN_CONSTRUCTOR)
  69 #define IS_EXTENSION_ID(byte)   (((byte) & ASN_EXTENSION_ID) == ASN_EXTENSION_ID)
  70
  71 #ifdef __cplusplus
  72 extern "C"
  73 {
  74 #endif
  75
  76     u_char *asn_build_header(u_char *, int *, u_char, int);
  77     u_char *asn_parse_int(u_char *, int *, u_char *, int *, int);
  78     u_char *asn_parse_unsigned_int(u_char *, int *, u_char *, u_int *, int);
  79     u_char *asn_build_int(u_char *, int *, u_char, int *, int);
  80     u_char *asn_build_unsigned_int(u_char *, int *, u_char, u_int *, int);
  81     u_char *asn_parse_string(u_char *, int *, u_char *, u_char *, int *);
  82     u_char *asn_build_string(u_char *, int *, u_char, u_char *, int);
  83     u_char *asn_parse_header(u_char *, int *, u_char *);
  84     u_char *asn_build_header_with_truth(u_char *, int *, u_char, int, int);
  85
  86     u_char *asn_parse_length(u_char *, u_int *);
  87     u_char *asn_build_length(u_char *, int *, int, int);
  88     u_char *asn_parse_objid(u_char *, int *, u_char *, oid *, int *);
  89     u_char *asn_build_objid(u_char *, int *, u_char, oid *, int);
  90     u_char *asn_parse_null(u_char *, int *, u_char *);
  91     u_char *asn_build_null(u_char *, int *, u_char);
  92
  93 #if 0
  94     u_char *asn_parse_bitstring(u_char *, int *, u_char *, u_char *, int *);
  95     u_char *asn_build_bitstring(u_char *, int *, u_char, u_char *, int);
  96
  97 #endif
  98     u_char *asn_build_exception(u_char *, int *, u_char);
  99
 100 #ifdef __cplusplus
 101 }
 102
 103 #endif
 104
 105 #endif  /* SQUID_SNMP_ASN1_H */