Shorewall users - Oct 2004 - Snort-inline - how to include rules ?

Hi all,

I read the docu and I read the FAQ, I still
don''t know where and how I should include the rules
the mark packets for SNORT-inline. They need to be
marked in the "in"-queue of the external interface
*before* any firewall rules are applied.

Any hints welcome.

Philipp