Hello Stephen,

As the current maintainer of iproute2 package, you could be interested
in including the attached patch that allow using masks in the fw filter
of the tc utility (very useful at least for me). AFAK, it works at least
from iproute2 version 2.6.20-?. Feel free to make the appropriate
cleaning changes if necessary, or contact me if you see any trouble.

Best regards,
François Delawarde.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>