>> I used the NET-SNMP-EXAMPLES-MIB.txt mib file for generating a scalar
>> subagent.
>How did you create the MIB module code for this subagent?
I used "mib2c -c mib2c.scalar.conf" to generate the source files and then
"net-snmp-config --compile-subagent" on the generated files to build the
subagent.
>> There seems to be some problem in making data persistent.
>What code do you have for saving and restoring the value?
If you mean the MODE_SET_ACTION, then I'm just copying the new string to the
variable that is used in MODE_GET.
Nothing else apart from this.
Is the sub-agent supposed to actually write the persistent data to the
/var/net-snmp/*.conf file?
>> c> kill and restart the subagent
>What command do you use to kill the subagent?
I used "kill -9 <pid>"
>> Any pointers on how I can make my subagent store this data in a persistent
>> manner?
>A little more detail about exactly what your current code looks like,
>might be helpful.
Here is the relevant code. All other cases are blank.
switch (reqinfo->mode) {
case MODE_GET:
snmp_set_var_typed_value(requests->requestvb, ASN_OCTET_STR,
(u_char *) newStr, strlen (newStr));
break;
case MODE_SET_RESERVE1:
/*
* or you could use netsnmp_check_vb_type_and_size instead
*/
ret = netsnmp_check_vb_type(requests->requestvb, ASN_OCTET_STR);
if (ret != SNMP_ERR_NOERROR) {
netsnmp_set_request_error(reqinfo, requests, ret);
}
break;
case MODE_SET_RESERVE2:
/*
* XXX malloc "undo" storage buffer
*/
memdup ((u_char **) &newStr, (u_char *) requests->requestvb->val.string,
strlen (requests->requestvb->val.string));
if (newStr == NULL) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
return SNMP_ERR_NOCREATION;
}
break;
case MODE_SET_ACTION:
/*
* XXX: perform the value change here
*/
strcpy(newStr, (void *)requests->requestvb->val.string);
break;
>Dave
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