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/*
* Copyright (C) 1996-2026 The Squid Software Foundation and contributors
*
* Squid software is distributed under GPLv2+ license and includes
* contributions from numerous individuals and organizations.
* Please see the COPYING and CONTRIBUTORS files for details.
*/
#ifndef SQUID_INCLUDE_SNMP_VARS_H
#define SQUID_INCLUDE_SNMP_VARS_H
/**********************************************************************
*
* Copyright 1997 by Carnegie Mellon University
*
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of CMU not be
* used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
*
* CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
* Author: Ryan Troll <ryan+@andrew.cmu.edu>
*
**********************************************************************/
#include "asn1.h"
#ifdef __cplusplus
extern "C" {
#endif
struct variable_list {
struct variable_list *next_variable; /* NULL for last variable */
oid *name; /* Object identifier of variable */
int name_length; /* number of subid's in name */
u_char type; /* ASN type of variable */
union { /* value of variable */
int *integer;
u_char *string;
oid *objid;
} val;
int val_len;
};
struct variable_list *snmp_var_new(oid *, int);
struct variable_list *snmp_var_new_integer(oid *, int, int, unsigned char);
struct variable_list *snmp_var_clone(struct variable_list *);
void snmp_var_free(struct variable_list *);
u_char *snmp_var_EncodeVarBind(u_char *, int *, struct variable_list *, int);
u_char *snmp_var_DecodeVarBind(u_char *, int *, struct variable_list **, int);
#define MAX_NAME_LEN 64 /* number of subid's in a objid */
/* RFC 1902: Structure of Management Information for SNMPv2
*
* Defined Types
*/
#define SMI_INTEGER ASN_INTEGER
#define SMI_STRING ASN_OCTET_STR
#define SMI_OBJID ASN_OBJECT_ID
#define SMI_NULLOBJ ASN_NULL
#define SMI_IPADDRESS (ASN_APPLICATION | 0) /* OCTET STRING, net byte order */
#define SMI_COUNTER32 (ASN_APPLICATION | 1) /* INTEGER */
#define SMI_GAUGE32 (ASN_APPLICATION | 2) /* INTEGER */
#define SMI_UNSIGNED32 SMI_GAUGE32
#define SMI_TIMETICKS (ASN_APPLICATION | 3) /* INTEGER */
#define SMI_OPAQUE (ASN_APPLICATION | 4) /* OCTET STRING */
#define SMI_COUNTER64 (ASN_APPLICATION | 6) /* INTEGER */
/* constants for enums for the MIB nodes
* cachePeerAddressType (InetAddressType / ASN_INTEGER)
* cacheClientAddressType (InetAddressType / ASN_INTEGER)
* Defined Types
*/
#ifndef INETADDRESSTYPE_ENUMS
#define INETADDRESSTYPE_ENUMS
#define INETADDRESSTYPE_UNKNOWN 0
#define INETADDRESSTYPE_IPV4 1
#define INETADDRESSTYPE_IPV6 2
#define INETADDRESSTYPE_IPV4Z 3
#define INETADDRESSTYPE_IPV6Z 4
#define INETADDRESSTYPE_DNS 16
#endif /* INETADDRESSTYPE_ENUMS */
/*
* RFC 1905: Protocol Operations for SNMPv2
*
* Variable binding.
*
* VarBind ::=
* SEQUENCE {
* name ObjectName
* CHOICE {
* value ObjectSyntax
* unSpecified NULL
* noSuchObject[0] NULL
* noSuchInstance[1] NULL
* endOfMibView[2] NULL
* }
* }
*/
#define SMI_NOSUCHOBJECT (ASN_CONTEXT | ASN_PRIMITIVE | 0x0) /* noSuchObject[0] */
#define SMI_NOSUCHINSTANCE (ASN_CONTEXT | ASN_PRIMITIVE | 0x1) /* noSuchInstance[1] */
#define SMI_ENDOFMIBVIEW (ASN_CONTEXT | ASN_PRIMITIVE | 0x2) /* endOfMibView[2] */
typedef struct variable variable;
typedef struct variable_list variable_list;
#ifdef __cplusplus
}
#endif
#endif /* SQUID_INCLUDE_SNMP_VARS_H */
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