Hi,
I wanted to implement a delay if somebody does snmpget on an oid
1.3.6.1.2.1.1.5.0. So I copied the following code from delayed_instance.c.
I run this code and run snmpget command this oid, I cant see any delay.
Can somebody help me in implementing this?
---------------------------------------------------------------------
#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/agent_handler.h>
#include "delayed_instance.h"
static u_long delay_time = 60;
void
init_delayed_instance(void)
{
static oid my_delayed_oid[] = {1, 3, 6, 1, 2, 1, 1, 5, 0};
netsnmp_handler_registration *my_test;
printf("\nInit_start\n");
my_test =
netsnmp_create_handler_registration("delayed_instance_example",
delayed_instance_handler,
my_delayed_oid,
OID_LENGTH(my_delayed_oid),
HANDLER_CAN_RWRITE);
netsnmp_register_instance(my_test);
printf("init_register\n");
sleep(100);
}
#define DELAYED_INSTANCE_SET_NAME "test_delayed"
int
delayed_instance_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
DEBUGMSGTL(("delayed_instance", "Got request, mode = %d:\n",
reqinfo->mode));
printf("delayed_instance, Got request, mode = %d\n", reqinfo->mode);
switch (reqinfo->mode) {
default:
requests->delegated = 1;
snmp_alarm_register(delay_time, /* seconds */
0, /* dont repeat. */
return_delayed_response, /* the function
* to call */
(void *)
netsnmp_create_delegated_cache(handler,
reginfo,
reqinfo,
requests,
NULL));
break;
}
return SNMP_ERR_NOERROR;
}
void
return_delayed_response(unsigned int clientreg, void *clientarg)
{
netsnmp_delegated_cache *cache = (netsnmp_delegated_cache *) clientarg;
netsnmp_request_info *requests;
netsnmp_agent_request_info *reqinfo;
u_long *delay_time_cache = NULL;
cache = netsnmp_handler_check_cache(cache);
if (!cache) {
snmp_log(LOG_ERR, "illegal call to return delayed response\n");
return;
}
reqinfo = cache->reqinfo;
requests = cache->requests;
DEBUGMSGTL(("delayed_instance",
"continuing delayed request, mode = %d\n",
cache->reqinfo->mode));
requests->delegated = 0;
switch (cache->reqinfo->mode) {
case MODE_GET:
case MODE_GETNEXT:
{
printf("I'm in get or getnext\n");
snmp_set_var_typed_value(cache->requests->requestvb,
ASN_INTEGER,
(u_char *) & delay_time,
sizeof(delay_time));
break;
}
netsnmp_free_delegated_cache(cache);
}
int main()
{
init_delayed_instance();
return 0;
}
--------------------------------------------------------------------
Regards,
Rav
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