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/*
* Copyright (c) 2001-2003
* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
* All rights reserved.
*
* Author: Harti Brandt <harti@freebsd.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Begemot: bsnmp/lib/snmp.h,v 1.30 2004/08/06 08:46:54 brandt Exp $
*
* Header file for SNMP functions.
*/
#ifndef snmp_h_
#define snmp_h_
#include <sys/types.h>
#define SNMP_COMMUNITY_MAXLEN 128
#define SNMP_MAX_BINDINGS 16
enum snmp_syntax {
SNMP_SYNTAX_NULL = 0,
SNMP_SYNTAX_INTEGER, /* == INTEGER32 */
SNMP_SYNTAX_OCTETSTRING,
SNMP_SYNTAX_OID,
SNMP_SYNTAX_IPADDRESS,
SNMP_SYNTAX_COUNTER,
SNMP_SYNTAX_GAUGE, /* == UNSIGNED32 */
SNMP_SYNTAX_TIMETICKS,
/* v2 additions */
SNMP_SYNTAX_COUNTER64,
SNMP_SYNTAX_NOSUCHOBJECT, /* exception */
SNMP_SYNTAX_NOSUCHINSTANCE, /* exception */
SNMP_SYNTAX_ENDOFMIBVIEW, /* exception */
};
struct snmp_value {
struct asn_oid var;
enum snmp_syntax syntax;
union snmp_values {
int32_t integer; /* also integer32 */
struct {
u_int len;
u_char *octets;
} octetstring;
struct asn_oid oid;
u_char ipaddress[4];
uint32_t uint32; /* also gauge32, counter32,
unsigned32, timeticks */
uint64_t counter64;
} v;
};
enum snmp_version {
SNMP_Verr = 0,
SNMP_V1 = 1,
SNMP_V2c,
};
struct snmp_pdu {
char community[SNMP_COMMUNITY_MAXLEN + 1];
enum snmp_version version;
u_int type;
/* trap only */
struct asn_oid enterprise;
u_char agent_addr[4];
int32_t generic_trap;
int32_t specific_trap;
uint32_t time_stamp;
/* others */
int32_t request_id;
int32_t error_status;
int32_t error_index;
/* fixes for encoding */
u_char *outer_ptr;
u_char *pdu_ptr;
u_char *vars_ptr;
struct snmp_value bindings[SNMP_MAX_BINDINGS];
u_int nbindings;
};
#define snmp_v1_pdu snmp_pdu
#define SNMP_PDU_GET 0
#define SNMP_PDU_GETNEXT 1
#define SNMP_PDU_RESPONSE 2
#define SNMP_PDU_SET 3
#define SNMP_PDU_TRAP 4 /* v1 */
#define SNMP_PDU_GETBULK 5 /* v2 */
#define SNMP_PDU_INFORM 6 /* v2 */
#define SNMP_PDU_TRAP2 7 /* v2 */
#define SNMP_PDU_REPORT 8 /* v2 */
#define SNMP_ERR_NOERROR 0
#define SNMP_ERR_TOOBIG 1
#define SNMP_ERR_NOSUCHNAME 2 /* v1 */
#define SNMP_ERR_BADVALUE 3 /* v1 */
#define SNMP_ERR_READONLY 4 /* v1 */
#define SNMP_ERR_GENERR 5
#define SNMP_ERR_NO_ACCESS 6 /* v2 */
#define SNMP_ERR_WRONG_TYPE 7 /* v2 */
#define SNMP_ERR_WRONG_LENGTH 8 /* v2 */
#define SNMP_ERR_WRONG_ENCODING 9 /* v2 */
#define SNMP_ERR_WRONG_VALUE 10 /* v2 */
#define SNMP_ERR_NO_CREATION 11 /* v2 */
#define SNMP_ERR_INCONS_VALUE 12 /* v2 */
#define SNMP_ERR_RES_UNAVAIL 13 /* v2 */
#define SNMP_ERR_COMMIT_FAILED 14 /* v2 */
#define SNMP_ERR_UNDO_FAILED 15 /* v2 */
#define SNMP_ERR_AUTH_ERR 16 /* v2 */
#define SNMP_ERR_NOT_WRITEABLE 17 /* v2 */
#define SNMP_ERR_INCONS_NAME 18 /* v2 */
#define SNMP_TRAP_COLDSTART 0
#define SNMP_TRAP_WARMSTART 1
#define SNMP_TRAP_LINKDOWN 2
#define SNMP_TRAP_LINKUP 3
#define SNMP_TRAP_AUTHENTICATION_FAILURE 4
#define SNMP_TRAP_EGP_NEIGHBOR_LOSS 5
#define SNMP_TRAP_ENTERPRISE 6
enum snmp_code {
SNMP_CODE_OK = 0,
SNMP_CODE_FAILED,
SNMP_CODE_BADVERS,
SNMP_CODE_BADLEN,
SNMP_CODE_BADENC,
SNMP_CODE_OORANGE,
};
void snmp_value_free(struct snmp_value *);
int snmp_value_parse(const char *, enum snmp_syntax, union snmp_values *);
int snmp_value_copy(struct snmp_value *, const struct snmp_value *);
void snmp_pdu_free(struct snmp_pdu *);
enum snmp_code snmp_pdu_decode(struct asn_buf *b, struct snmp_pdu *pdu, int32_t *);
enum snmp_code snmp_pdu_encode(struct snmp_pdu *pdu, struct asn_buf *resp_b);
int snmp_pdu_snoop(const struct asn_buf *);
void snmp_pdu_dump(const struct snmp_pdu *pdu);
extern void (*snmp_error)(const char *, ...);
extern void (*snmp_printf)(const char *, ...);
#define TRUTH_MK(F) ((F) ? 1 : 2)
#define TRUTH_GET(T) (((T) == 1) ? 1 : 0)
#define TRUTH_OK(T) ((T) == 1 || (T) == 2)
const char* snmp_get_errmsg (int code);
#endif
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