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/*
* Copyright (C) 1996-2025 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_PDU_H
#define SQUID_INCLUDE_SNMP_PDU_H
/* required for oid typedef */
#include "asn1.h"
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
/**********************************************************************
*
* 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>
*
**********************************************************************/
#ifdef __cplusplus
extern "C" {
#endif
/* An SNMP PDU */
struct snmp_pdu {
int command; /* Type of this PDU */
struct sockaddr_in address; /* Address of peer */
int reqid; /* Integer32: Request id */
int errstat; /* INTEGER: Error status */
int errindex; /* INTEGER: Error index */
/* SNMPv2 Bulk Request */
int non_repeaters; /* INTEGER: */
int max_repetitions; /* INTEGER: */
struct variable_list *variables; /* Variable Bindings */
/* Trap information */
oid *enterprise; /* System OID */
int enterprise_length;
struct sockaddr_in agent_addr; /* address of object generating trap */
int trap_type; /* generic trap type */
int specific_type; /* specific type */
u_int time; /* Uptime */
};
struct snmp_pdu *snmp_pdu_create(int);
struct snmp_pdu *snmp_pdu_clone(struct snmp_pdu *);
struct snmp_pdu *snmp_pdu_fix(struct snmp_pdu *, int);
struct snmp_pdu *snmp_fix_pdu(struct snmp_pdu *, int);
void snmp_free_pdu(struct snmp_pdu *);
void snmp_pdu_free(struct snmp_pdu *);
u_char *snmp_pdu_encode(u_char *, int *, struct snmp_pdu *);
u_char *snmp_pdu_decode(u_char *, int *, struct snmp_pdu *);
/* Add a NULL Variable to a PDU */
void snmp_add_null_var(struct snmp_pdu *, oid *, int);
/* RFC 1905: Protocol Operations for SNMPv2
*
* RFC 1157: A Simple Network Management Protocol (SNMP)
*
* PDU Types
*/
#define SNMP_PDU_GET (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x0)
#define SNMP_PDU_GETNEXT (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x1)
#define SNMP_PDU_RESPONSE (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x2)
#define SNMP_PDU_GETBULK (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x5)
#define MAX_BINDINGS 2147483647 /* PDU Defaults */
#define SNMP_DEFAULT_ERRSTAT -1
#define SNMP_DEFAULT_ERRINDEX -1
#define SNMP_DEFAULT_ADDRESS 0
#define SNMP_DEFAULT_REQID 0
#ifdef __cplusplus
}
#endif
#endif /* SQUID_INCLUDE_SNMP_PDU_H */
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