checking IP <> MAC in ipfw

[hugle]

Hello.
searching for a patch for ipfw2
the thing i like to do, is to check users ip and mac.. if mac isn't
equal to some_value then do smth..

for example:
ipfw add deny ip from 192.168.1.1 src-mac not 00:11:22:33:44:55
is it possible ?
thx
-- 
Best regards,Hugle