175 lines
5.0 KiB
C
175 lines
5.0 KiB
C
/*
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* Copyright (c) 2001-2003
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* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
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* All rights reserved.
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*
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* Author: Harti Brandt <harti@freebsd.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Begemot: bsnmp/lib/snmp.h,v 1.30 2004/08/06 08:46:54 brandt Exp $
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*
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* Header file for SNMP functions.
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*/
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#ifndef snmp_h_
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#define snmp_h_
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#include <sys/types.h>
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#define SNMP_COMMUNITY_MAXLEN 128
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#define SNMP_MAX_BINDINGS 100
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enum snmp_syntax {
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SNMP_SYNTAX_NULL = 0,
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SNMP_SYNTAX_INTEGER, /* == INTEGER32 */
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SNMP_SYNTAX_OCTETSTRING,
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SNMP_SYNTAX_OID,
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SNMP_SYNTAX_IPADDRESS,
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SNMP_SYNTAX_COUNTER,
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SNMP_SYNTAX_GAUGE, /* == UNSIGNED32 */
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SNMP_SYNTAX_TIMETICKS,
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/* v2 additions */
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SNMP_SYNTAX_COUNTER64,
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SNMP_SYNTAX_NOSUCHOBJECT, /* exception */
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SNMP_SYNTAX_NOSUCHINSTANCE, /* exception */
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SNMP_SYNTAX_ENDOFMIBVIEW, /* exception */
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};
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struct snmp_value {
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struct asn_oid var;
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enum snmp_syntax syntax;
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union snmp_values {
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int32_t integer; /* also integer32 */
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struct {
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u_int len;
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u_char *octets;
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} octetstring;
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struct asn_oid oid;
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u_char ipaddress[4];
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uint32_t uint32; /* also gauge32, counter32,
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unsigned32, timeticks */
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uint64_t counter64;
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} v;
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};
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enum snmp_version {
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SNMP_Verr = 0,
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SNMP_V1 = 1,
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SNMP_V2c,
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};
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struct snmp_pdu {
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char community[SNMP_COMMUNITY_MAXLEN + 1];
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enum snmp_version version;
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u_int type;
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/* trap only */
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struct asn_oid enterprise;
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u_char agent_addr[4];
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int32_t generic_trap;
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int32_t specific_trap;
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uint32_t time_stamp;
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/* others */
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int32_t request_id;
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int32_t error_status;
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int32_t error_index;
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/* fixes for encoding */
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u_char *outer_ptr;
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u_char *pdu_ptr;
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u_char *vars_ptr;
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struct snmp_value bindings[SNMP_MAX_BINDINGS];
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u_int nbindings;
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};
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#define snmp_v1_pdu snmp_pdu
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#define SNMP_PDU_GET 0
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#define SNMP_PDU_GETNEXT 1
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#define SNMP_PDU_RESPONSE 2
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#define SNMP_PDU_SET 3
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#define SNMP_PDU_TRAP 4 /* v1 */
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#define SNMP_PDU_GETBULK 5 /* v2 */
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#define SNMP_PDU_INFORM 6 /* v2 */
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#define SNMP_PDU_TRAP2 7 /* v2 */
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#define SNMP_PDU_REPORT 8 /* v2 */
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#define SNMP_ERR_NOERROR 0
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#define SNMP_ERR_TOOBIG 1
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#define SNMP_ERR_NOSUCHNAME 2 /* v1 */
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#define SNMP_ERR_BADVALUE 3 /* v1 */
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#define SNMP_ERR_READONLY 4 /* v1 */
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#define SNMP_ERR_GENERR 5
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#define SNMP_ERR_NO_ACCESS 6 /* v2 */
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#define SNMP_ERR_WRONG_TYPE 7 /* v2 */
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#define SNMP_ERR_WRONG_LENGTH 8 /* v2 */
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#define SNMP_ERR_WRONG_ENCODING 9 /* v2 */
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#define SNMP_ERR_WRONG_VALUE 10 /* v2 */
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#define SNMP_ERR_NO_CREATION 11 /* v2 */
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#define SNMP_ERR_INCONS_VALUE 12 /* v2 */
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#define SNMP_ERR_RES_UNAVAIL 13 /* v2 */
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#define SNMP_ERR_COMMIT_FAILED 14 /* v2 */
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#define SNMP_ERR_UNDO_FAILED 15 /* v2 */
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#define SNMP_ERR_AUTH_ERR 16 /* v2 */
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#define SNMP_ERR_NOT_WRITEABLE 17 /* v2 */
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#define SNMP_ERR_INCONS_NAME 18 /* v2 */
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#define SNMP_TRAP_COLDSTART 0
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#define SNMP_TRAP_WARMSTART 1
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#define SNMP_TRAP_LINKDOWN 2
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#define SNMP_TRAP_LINKUP 3
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#define SNMP_TRAP_AUTHENTICATION_FAILURE 4
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#define SNMP_TRAP_EGP_NEIGHBOR_LOSS 5
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#define SNMP_TRAP_ENTERPRISE 6
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enum snmp_code {
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SNMP_CODE_OK = 0,
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SNMP_CODE_FAILED,
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SNMP_CODE_BADVERS,
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SNMP_CODE_BADLEN,
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SNMP_CODE_BADENC,
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SNMP_CODE_OORANGE,
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};
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void snmp_value_free(struct snmp_value *);
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int snmp_value_parse(const char *, enum snmp_syntax, union snmp_values *);
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int snmp_value_copy(struct snmp_value *, const struct snmp_value *);
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void snmp_pdu_free(struct snmp_pdu *);
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enum snmp_code snmp_pdu_decode(struct asn_buf *b, struct snmp_pdu *pdu, int32_t *);
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enum snmp_code snmp_pdu_encode(struct snmp_pdu *pdu, struct asn_buf *resp_b);
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int snmp_pdu_snoop(const struct asn_buf *);
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void snmp_pdu_dump(const struct snmp_pdu *pdu);
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extern void (*snmp_error)(const char *, ...);
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extern void (*snmp_printf)(const char *, ...);
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#define TRUTH_MK(F) ((F) ? 1 : 2)
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#define TRUTH_GET(T) (((T) == 1) ? 1 : 0)
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#define TRUTH_OK(T) ((T) == 1 || (T) == 2)
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#endif
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