1/* SNMP support 2 * Copyright (C) 1999 Kunihiro Ishiguro <kunihiro@zebra.org> 3 * 4 * This file is part of GNU Zebra. 5 * 6 * GNU Zebra is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; either version 2, or (at your option) any 9 * later version. 10 * 11 * GNU Zebra is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with GNU Zebra; see the file COPYING. If not, write to the Free 18 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 19 * 02111-1307, USA. 20 */ 21 22#ifndef _ZEBRA_SNMP_H 23#define _ZEBRA_SNMP_H 24 25#include <net-snmp/agent/net-snmp-agent-includes.h> 26#include <net-snmp/agent/snmp_vars.h> 27 28/* Structures here are mostly compatible with UCD SNMP 4.1.1 */ 29#define MATCH_FAILED (-1) 30#define MATCH_SUCCEEDED 0 31 32/* SYNTAX TruthValue from SNMPv2-TC. */ 33#define SNMP_TRUE 1 34#define SNMP_FALSE 2 35 36/* SYNTAX RowStatus from SNMPv2-TC. */ 37#define SNMP_VALID 1 38#define SNMP_INVALID 2 39 40#define IN_ADDR_SIZE sizeof(struct in_addr) 41 42#undef REGISTER_MIB 43#define REGISTER_MIB(descr, var, vartype, theoid) \ 44 smux_register_mib(descr, (struct variable *)var, sizeof(struct vartype), \ 45 sizeof(var)/sizeof(struct vartype), \ 46 theoid, sizeof(theoid)/sizeof(oid)) 47 48struct trap_object 49{ 50 int namelen; /* Negative if the object is not indexed */ 51 oid name[MAX_OID_LEN]; 52}; 53 54/* Declare SMUX return value. */ 55#define SNMP_LOCAL_VARIABLES \ 56 static long snmp_int_val; \ 57 static struct in_addr snmp_in_addr_val; 58 59#define SNMP_INTEGER(V) \ 60 ( \ 61 *var_len = sizeof (snmp_int_val), \ 62 snmp_int_val = V, \ 63 (u_char *) &snmp_int_val \ 64 ) 65 66#define SNMP_IPADDRESS(V) \ 67 ( \ 68 *var_len = sizeof (struct in_addr), \ 69 snmp_in_addr_val = V, \ 70 (u_char *) &snmp_in_addr_val \ 71 ) 72 73extern void smux_init (struct thread_master *tm); 74extern void smux_register_mib(const char *, struct variable *, 75 size_t, int, oid [], size_t); 76extern int smux_header_generic (struct variable *, oid [], size_t *, 77 int, size_t *, WriteMethod **); 78extern int smux_header_table (struct variable *, oid *, size_t *, 79 int, size_t *, WriteMethod **); 80 81/* For traps, three OID are provided: 82 83 1. The enterprise OID to use (the last argument will be appended to 84 it to form the SNMP trap OID) 85 86 2. The base OID for objects to be sent in traps. 87 88 3. The index OID for objects to be sent in traps. This index is used 89 to designate a particular instance of a column. 90 91 The provided trap object contains the bindings to be sent with the 92 trap. The base OID will be prefixed to the provided OID and, if the 93 length is positive, the requested OID is assumed to be a columnar 94 object and the index OID will be appended. 95 96 The two first arguments are the MIB registry used to locate the trap 97 objects. 98 99 The use of the arguments may differ depending on the implementation 100 used. 101*/ 102extern int smux_trap (struct variable *, size_t, 103 const oid *, size_t, 104 const oid *, size_t, 105 const oid *, size_t, 106 const struct trap_object *, size_t, 107 u_char); 108 109extern int oid_compare (oid *, int, oid *, int); 110extern void oid2in_addr (oid [], int, struct in_addr *); 111extern void *oid_copy (void *, const void *, size_t); 112extern void oid_copy_addr (oid [], struct in_addr *, int); 113 114#endif /* _ZEBRA_SNMP_H */ 115