asn1.h
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1 /*
2  * Copyright (C) 1996-2017 The Squid Software Foundation and contributors
3  *
4  * Squid software is distributed under GPLv2+ license and includes
5  * contributions from numerous individuals and organizations.
6  * Please see the COPYING and CONTRIBUTORS files for details.
7  */
8 
9 #ifndef SQUID_SNMP_ASN1_H
10 #define SQUID_SNMP_ASN1_H
11 
12 /*
13  * Definitions for Abstract Syntax Notation One, ASN.1
14  * As defined in ISO/IS 8824 and ISO/IS 8825
15  *
16  */
17 /**********************************************************************
18  *
19  * Copyright 1997 by Carnegie Mellon University
20  *
21  * All Rights Reserved
22  *
23  * Permission to use, copy, modify, and distribute this software and its
24  * documentation for any purpose and without fee is hereby granted,
25  * provided that the above copyright notice appear in all copies and that
26  * both that copyright notice and this permission notice appear in
27  * supporting documentation, and that the name of CMU not be
28  * used in advertising or publicity pertaining to distribution of the
29  * software without specific, written prior permission.
30  *
31  * CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
32  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
33  * CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
34  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
35  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
36  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
37  * SOFTWARE.
38  *
39  **********************************************************************/
40 
41 #ifndef EIGHTBIT_SUBIDS
42 typedef u_int oid;
43 #define MAX_SUBID 0xFFFFFFFF
44 #else
45 typedef u_char oid;
46 #define MAX_SUBID 0xFF
47 #endif
48 
49 #define MAX_OID_LEN 128 /* max subid's in an oid, per SNMP spec. */
50 
51 #define ASN_BOOLEAN (0x01)
52 #define ASN_INTEGER (0x02)
53 #define ASN_BIT_STR (0x03)
54 #define ASN_OCTET_STR (0x04)
55 #define ASN_NULL (0x05)
56 #define ASN_OBJECT_ID (0x06)
57 #define ASN_SEQUENCE (0x10)
58 #define ASN_SET (0x11)
59 
60 #define ASN_UNIVERSAL (0x00)
61 #define ASN_APPLICATION (0x40)
62 #define ASN_CONTEXT (0x80)
63 #define ASN_PRIVATE (0xC0)
64 
65 #define ASN_PRIMITIVE (0x00)
66 #define ASN_CONSTRUCTOR (0x20)
67 
68 #define ASN_LONG_LEN (0x80)
69 #define ASN_EXTENSION_ID (0x1F)
70 #define ASN_BIT8 (0x80)
71 
72 #define IS_CONSTRUCTOR(byte) ((byte) & ASN_CONSTRUCTOR)
73 #define IS_EXTENSION_ID(byte) (((byte) & ASN_EXTENSION_ID) == ASN_EXTENSION_ID)
74 
75 #ifdef __cplusplus
76 extern "C" {
77 #endif
78 
79 u_char *asn_build_header(u_char *, int *, u_char, int);
80 u_char *asn_parse_int(u_char *, int *, u_char *, int *, int);
81 u_char *asn_parse_unsigned_int(u_char *, int *, u_char *, u_int *, int);
82 u_char *asn_build_int(u_char *, int *, u_char, int *, int);
83 u_char *asn_build_unsigned_int(u_char *, int *, u_char, u_int *, int);
84 u_char *asn_parse_string(u_char *, int *, u_char *, u_char *, int *);
85 u_char *asn_build_string(u_char *, int *, u_char, u_char *, int);
86 u_char *asn_parse_header(u_char *, int *, u_char *);
87 u_char *asn_build_header_with_truth(u_char *, int *, u_char, int, int);
88 
89 u_char *asn_parse_length(u_char *, u_int *);
90 u_char *asn_build_length(u_char *, int *, int, int);
91 u_char *asn_parse_objid(u_char *, int *, u_char *, oid *, int *);
92 u_char *asn_build_objid(u_char *, int *, u_char, oid *, int);
93 u_char *asn_parse_null(u_char *, int *, u_char *);
94 u_char *asn_build_null(u_char *, int *, u_char);
95 
96 #if 0
97 u_char *asn_parse_bitstring(u_char *, int *, u_char *, u_char *, int *);
98 u_char *asn_build_bitstring(u_char *, int *, u_char, u_char *, int);
99 
100 #endif
101 u_char *asn_build_exception(u_char *, int *, u_char);
102 
103 #ifdef __cplusplus
104 }
105 
106 #endif
107 
108 #endif /* SQUID_SNMP_ASN1_H */
109 
u_char * asn_build_int(u_char *, int *, u_char, int *, int)
Definition: asn1.c:245
u_char * asn_build_header_with_truth(u_char *, int *, u_char, int, int)
Definition: asn1.c:513
u_char * asn_parse_string(u_char *, int *, u_char *, u_char *, int *)
Definition: asn1.c:387
u_char * asn_build_null(u_char *, int *, u_char)
Definition: asn1.c:876
u_char * asn_build_length(u_char *, int *, int, int)
Definition: asn1.c:606
u_char * asn_build_objid(u_char *, int *, u_char, oid *, int)
Definition: asn1.c:759
u_char * asn_parse_objid(u_char *, int *, u_char *, oid *, int *)
Definition: asn1.c:674
u_char * asn_build_header(u_char *, int *, u_char, int)
Definition: asn1.c:93
u_char * asn_build_unsigned_int(u_char *, int *, u_char, u_int *, int)
Definition: asn1.c:311
u_char * asn_parse_unsigned_int(u_char *, int *, u_char *, u_int *, int)
Definition: asn1.c:179
u_char * asn_build_string(u_char *, int *, u_char, u_char *, int)
Definition: asn1.c:433
u_char * asn_parse_int(u_char *, int *, u_char *, int *, int)
Definition: asn1.c:114
u_int oid
Definition: asn1.h:42
u_char * asn_parse_length(u_char *, u_int *)
Definition: asn1.c:575
u_char * asn_build_exception(u_char *, int *, u_char)
Definition: asn1.c:1008
u_char * asn_parse_header(u_char *, int *, u_char *)
Definition: asn1.c:470
u_char * asn_parse_null(u_char *, int *, u_char *)

 

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