Hi ,
I am new to Netsnmp, I adding the context support .
I am facing issue in snmpv2 walk , If I filling the context Name during the
registration table .
I am not able do the walk for register table , It only accessible in context
based walk ,
So what I need to add , for support the default walk . So please help me if I
missed anything .
Handler = netsnmp_baby_steps_access_multiplexer_get(access_multiplexer);
reginfo = netsnmp_handler_registration_create(
"ifTable", handler, ifTable_oid, ifTable_oid_size,
HANDLER_CAN_BABY_STEP | HANDLER_CAN_RONLY);
if (NULL == reginfo) {
snmp_log(LOG_ERR, "error registering table ifTable\n");
return;
}
reginfo->my_reg_void = &ifTable_if_ctx;
if(snmp_ctx != NULL)
{
reginfo->contextName = strdup(snmp_ctx);
}
if (access_multiplexer->object_lookup)
mfd_modes |= BABY_STEP_OBJECT_LOOKUP;
if (access_multiplexer->pre_request)
mfd_modes |= BABY_STEP_PRE_REQUEST;
if (access_multiplexer->post_request)
mfd_modes |= BABY_STEP_POST_REQUEST;
handler = netsnmp_baby_steps_handler_get(mfd_modes);
netsnmp_inject_handler(reginfo, handler);
handler = netsnmp_get_row_merge_handler(reginfo->rootoid_len + 2);
netsnmp_inject_handler(reginfo, handler);
handler = netsnmp_container_table_handler_get(
tbl_info, ifTable_if_ctx.container, TABLE_CONTAINER_KEY_NETSNMP_INDEX);
netsnmp_inject_handler(reginfo, handler);
if (NULL != ifTable_if_ctx.cache) {
handler = netsnmp_cache_handler_get(ifTable_if_ctx.cache);
netsnmp_inject_handler(reginfo, handler);
netsnmp_register_table(reginfo, tbl_info);
I have wrapper will fil the context name ,
However during initialization I will pass context as NULL. So I assumed there
will be table registration without context name .
My snmpwalk output:
bash-4.3# snmpwalk -v2c -cpublic localhost 1.3.6.1.2.1.2.2.1.2.1
IF-MIB::ifEntry = No Such Object available on this agent at this OID
bash-4.3# snmpwalk -v3 -u test1 -l authPriv -a MD5 -A 'password' -x DES -X
'password' -n "" localhost 1.3.6.1.2.1.2.2.1.2.1
IF-MIB::ifEntry = No Such Object available on this agent at this OID
bash-4.3#snmpwalk -v3 -u test1 -l authPriv -a MD5 -A 'password' -x DES -X
'password' -n "snmp_context" localhost 1.3.6.1.2.1.2.2.1.2.1
IF-MIB::ifDescr.1 = STRING:
IF-MIB::ifSpecific.2 = No more variables left in this MIB View (It is past the
end of the MIB tree)
If I am comment above line , I can able to do the walk .
Regards,
Sridhar .L
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