Wireshark · Ethereal-dev: [Ethereal-dev] Re: Ethereal decodes bootp/dhcp option 2 incorrectly

[Radek Vokal <rvokal@xxxxxxxxxx>]

Packet #2 - see Time Offset value. 


On Thu, 2005-04-07 at 07:37 -0400, ronnie sahlberg wrote:
> Do you have a small example capture you can send me i can use to test
> and verify a fix with?
> 
> 
> On Thu, 07 Apr 2005 13:14:29 +0200, Radek Vokal <rvokal@xxxxxxxxxx> wrote:
> > When ethereal displays the formatted packet for a bootp/dhcp DHCPACK
> > that contains option 2 (time offset), the value is not calculated
> > correctly.
> > 
> > Ethereal is treating the value as 32-bit UNsigned value, but it is
> > supposed to be a SIGNED value. (See RFC 2132, section 3.4 Time Offset)
> > 
> > Actual Results:  Response from DHCP server ... 02 04 ff ff 9d 90 ...
> > formatted as:
> > 
> > Option 2: Time Offset = 49709 days, 23 hours, 28 minutes, 16 seconds
> > 
> > 
> > Expected Results:  The data portion of the data (0xff ff 9d 90) must be
> > interpreted as a SIGNED number ( -25200 decimal) and is the number of
> > seconds offset from UTC.
> > This should display as:
> > 
> > Option 2: Time Offset = -7 hours
> > or
> > Option 2: Time Offset = 0 days, -7 hours, 0 minutes, 0 seconds
> > 
> > See Red Hat bugzilla
> > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=154082
> > 
> > -- 
> > Radek Vokál     <rvokal@xxxxxxxxxx> 
> > OS Systems Engineer
> >         IT executives rate Red Hat #1 for value
> >         http://www.redhat.com/promo/vendor/index.html
> > 
> > _______________________________________________
> > Ethereal-dev mailing list
> > Ethereal-dev@xxxxxxxxxxxx
> > http://www.ethereal.com/mailman/listinfo/ethereal-dev
> >
-- 
Radek Vokál     <rvokal@xxxxxxxxxx> 
OS Systems Engineer
        IT executives rate Red Hat #1 for value
        http://www.redhat.com/promo/vendor/index.html

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