Re: snmp agent crashed when i used the tool snmpwalk running through out my private MIB(a table).

On 22/12/06, jiang jilin <[email protected]> wrote:

> Program received signal SIGSEGV, Segmentation fault.
> 0xb7e95b20 in rsfwTable_handler (handler=0x80a1e60,
>     reginfo=0x80a1ea0, reqinfo=0x0, requests=0x810ebe0) at rfw/rs.c:361
> 361
> snmp_set_var_typed_integer(request->requestvb, ASN_COUNTER,

Hmmm... I'm not sure I believe the problem lies with 'reqinfo'.
If this was indeed NULL, then the module would have crashed
earlier, back at the statement:

   switch (reqinfo->mode)

I'm suspicious of the table_entry variable - which you extract from
the request structure, but never actually check before using.

Try putting a breakpoint on line 361, run the agent again, and check
the values of 'reqinfo', 'request' and 'table_entry' - *before* executing
the snmp_set_var_typed_integer call.

>                snmp_set_var_typed_value(request->requestvb,
>                                         SNMP_NOSUCHOBJECT, NULL, 0);

That's not right.
Try
     netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHOBJECT);
instead

Dave

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