Re: SNMP on 64bit platform

Dave Shield wrote:
> On 14/04/2008, Taymour A. El Erian <[email protected]> wrote:
>   
>>   I am using freeradius with snmp on 64 bit, I noticed in the debug mode
>>  the following
>>
>>  smux: [smux_open_process] smux peer passwd: password
>>  smux: [smux_open_process] len 0, type 4
>>
>>  Notice that the len in second line is 0, is this normal ?
>>  shouldn't it be 8 ?
>>     
>
> I don't know whether this is normal or not, but no - it shouldn't be 8.
> 'len' refers to the input buffer being parsed (i.e. the incoming SMUX
> request), and indicates the length still remaining to be processed.
> It is *not* the length of the token that has just been parsed.
>
> If you look at the full debug output, you should see a
> sequence of 'smux_open_process' messages, with the len
> value going down each time.
>
>
>   
>> . What comes later is authentication failed.
>>     
>
> You may need to run the agent under a debugger, and step
> through the routine 'smux_auth_peer', to check what OIDs
> and passwords are being checked.
>    (Or else add some debugging code to this routine,
> and re-compile).
>
> Dave
>
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>
>   
I have been doing debug work and my guess is the problem is here

smux.c

   if (!smux_auth_peer(oid_name, oid_name_len, passwd, fd)) {
       snmp_log(LOG_WARNING,
                "refused smux peer: oid %s, descr %s\n",
                oid_print, descr);
       *fail = TRUE;
       return ptr;
   }

I have printed the password in the log and it is printed ok but the len
is always 0. I went and modified the code of smux_auth_peer to just
return 1 and of course this made the authentication succeed. I guess the
problem actually is in the string comparison in this function. Please
help as am not so familiar with snmp programming.

-- 
Taymour A El Erian
System Division Manager
RHCE, LPIC, CCNA, MCSE, CNA
TE Data
E-mail: [email protected]
Web:     www.tedata.net
Tel:    +(202)-33320700
Fax:	+(202)-33320800
Ext:    1101



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