[Click] Alignment problem on ARM

[Cliff Frey]

If those numbers are correct, then yes.  So in this case the real "problem"
from click-align's perspective is that FromDevice is not giving you packets
that are (4 2) aligned.  You can work around this problem any number of
ways...  easiest for you to just make WifiDecap give GeneratorAligner(4,2)
in click-align.cc... perhaps a good long term solution would be to make
FromDevice support a configuration argument that click-align.cc could use.
 Also, on machines without HAVE_INDIFFERENT_ALIGNMENT, fromdevice could
actually verify the alignment of packets received and warn if they are not
at the correct alignment.

Cliff

On Fri, Jan 22, 2010 at 1:47 AM, Roberto Riggio <
roberto.riggio at create-net.org> wrote:

> On 01/22/2010 06:16 AM, Cliff Frey wrote:
>
>> Also, wifi_header + llc is probably more than 8 bytes...
>>
>
> Right, wifidecap pulls 26 + 8 bytes and pushes 14 bytes,
> while athdescdecap pulls 32  bytes, which means that neither
> of them is modifying the alignment. right?
>
>
>