net-snmp/agent/mibgroup/mibII/snmp_mib.c

143 lines
4.3 KiB
C

/*
* Portions of this file are subject to the following copyright(s). See
* the Net-SNMP's COPYING file for more details and other copyrights
* that may apply:
*
* Portions of this file are copyrighted by:
* Copyright (c) 2016 VMware, Inc. All rights reserved.
* Use is subject to license terms specified in the COPYING file
* distributed with the Net-SNMP package.
*/
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-features.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include <net-snmp/agent/sysORTable.h>
#include <net-snmp/agent/snmp_get_statistic.h>
#include "snmp_mib.h"
#include "system_mib.h"
#include "updates.h"
#include "agent_global_vars.h"
netsnmp_feature_require(helper_statistics)
#ifndef NETSNMP_NO_WRITE_SUPPORT
netsnmp_feature_require(check_vb_truthvalue)
#endif /* NETSNMP_NO_WRITE_SUPPORT */
#define SNMP_OID 1, 3, 6, 1, 2, 1, 11
static const oid snmp_oid[] = { SNMP_OID };
static int
snmp_enableauthentraps_store(int a, int b, void *c, void *d)
{
char line[SNMP_MAXBUF_SMALL];
if (snmp_enableauthentrapsset > 0) {
snprintf(line, SNMP_MAXBUF_SMALL, "pauthtrapenable %ld",
snmp_enableauthentraps);
snmpd_store_config(line);
}
return 0;
}
static int
handle_truthvalue(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
#ifndef NETSNMP_NO_WRITE_SUPPORT
if (reqinfo->mode == MODE_SET_RESERVE1) {
int res = netsnmp_check_vb_truthvalue(requests->requestvb);
if (res != SNMP_ERR_NOERROR)
netsnmp_request_set_error(requests, res);
}
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
return SNMP_ERR_NOERROR;
}
static netsnmp_mib_handler*
netsnmp_get_truthvalue(void)
{
netsnmp_mib_handler* hnd =
netsnmp_create_handler("truthvalue", handle_truthvalue);
if (hnd)
hnd->flags |= MIB_HANDLER_AUTO_NEXT;
return hnd;
}
static int
handle_snmp(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
switch(requests->requestvb->name[OID_LENGTH(snmp_oid)]) {
case 7:
case 23:
case 30:
netsnmp_set_request_error(reqinfo, requests, SNMP_NOSUCHOBJECT);
break;
default:
break;
}
return SNMP_ERR_NOERROR;
}
/** Initializes the snmp module */
void
init_snmp_mib(void)
{
DEBUGMSGTL(("snmp", "Initializing\n"));
NETSNMP_REGISTER_STATISTIC_HANDLER(
netsnmp_create_handler_registration(
"mibII/snmp", handle_snmp, snmp_oid, OID_LENGTH(snmp_oid),
HANDLER_CAN_RONLY),
1, SNMP);
{
oid snmpEnableAuthenTraps_oid[] = { SNMP_OID, 30, 0 };
static netsnmp_watcher_info enableauthen_info;
netsnmp_mib_handler *handler;
netsnmp_handler_registration *reg =
netsnmp_create_update_handler_registration(
"mibII/snmpEnableAuthenTraps",
snmpEnableAuthenTraps_oid,
OID_LENGTH(snmpEnableAuthenTraps_oid),
#ifndef NETSNMP_NO_WRITE_SUPPORT
HANDLER_CAN_RWRITE,
#else
HANDLER_CAN_RONLY,
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
&snmp_enableauthentrapsset);
handler = netsnmp_get_truthvalue();
if (!handler ||
(netsnmp_inject_handler(reg, handler) != SNMPERR_SUCCESS)) {
snmp_log(LOG_ERR,
"could not create mibII/snmpEnableAuthenTraps handler\n");
if (handler)
netsnmp_handler_free(handler);
netsnmp_handler_registration_free(reg);
return;
}
netsnmp_register_watched_instance(
reg,
netsnmp_init_watcher_info(
&enableauthen_info,
&snmp_enableauthentraps, sizeof(snmp_enableauthentraps),
ASN_INTEGER, WATCHER_FIXED_SIZE));
}
#ifdef USING_MIBII_SYSTEM_MIB_MODULE
if (++system_module_count == 3)
REGISTER_SYSOR_TABLE(system_module_oid, system_module_oid_len,
"The MIB module for SNMPv2 entities");
#endif
snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
snmp_enableauthentraps_store, NULL);
}