net-snmp/agent/helpers/null.c

86 lines
2.6 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-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include <net-snmp/agent/null.h>
#if HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
int
netsnmp_register_null(oid * loc, size_t loc_len)
{
return netsnmp_register_null_context(loc, loc_len, NULL);
}
int
netsnmp_register_null_context(oid * loc, size_t loc_len,
const char *contextName)
{
netsnmp_handler_registration *reginfo;
reginfo = SNMP_MALLOC_TYPEDEF(netsnmp_handler_registration);
if (reginfo != NULL) {
reginfo->handlerName = strdup("");
reginfo->rootoid = loc;
reginfo->rootoid_len = loc_len;
reginfo->handler =
netsnmp_create_handler("null", netsnmp_null_handler);
if (contextName)
reginfo->contextName = strdup(contextName);
reginfo->modes = HANDLER_CAN_DEFAULT | HANDLER_CAN_GETBULK;
if (!reginfo->handlerName || !reginfo->handler ||
(contextName && !reginfo->contextName)) {
snmp_log(LOG_ERR,"null context allocation failure(s)\n");
netsnmp_handler_registration_free(reginfo);
return MIB_REGISTRATION_FAILED;
}
} else {
snmp_log(LOG_ERR,"null context allocation failure\n");
return MIB_REGISTRATION_FAILED;
}
return netsnmp_register_handler(reginfo);
}
int
netsnmp_null_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
DEBUGMSGTL(("helper:null", "Got request\n"));
DEBUGMSGTL(("helper:null", " oid:"));
DEBUGMSGOID(("helper:null", requests->requestvb->name,
requests->requestvb->name_length));
DEBUGMSG(("helper:null", "\n"));
switch (reqinfo->mode) {
case MODE_GETNEXT:
case MODE_GETBULK:
return SNMP_ERR_NOERROR;
case MODE_GET:
netsnmp_request_set_error_all(requests, SNMP_NOSUCHOBJECT);
return SNMP_ERR_NOERROR;
default:
netsnmp_request_set_error_all(requests, SNMP_ERR_NOSUCHNAME);
return SNMP_ERR_NOERROR;
}
}