From mboxrd@z Thu Jan  1 00:00:00 1970
From: <jay@esuna.co.uk>
Subject: ipt_owner and ICMP
Date: Sat, 18 Mar 2006 18:34:40 -0000
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Hi,

I'm currently using the ipt_owner module to enforce stronger outgoing packet
filtering on certain daemons. I create a custom chain with the stronger
rules and use '-m owner' to jump packets into the chain.

This works fine for UDP and TCP, but my outgoing ICMP packets never match
the rule. I understand why incoming ICMP should fail to match, but why are
outgoing packets missing the filter?

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
acctboth   all  --  anywhere             anywhere
ACCEPT     all  --  anywhere             anywhere
apache-output  all  --  anywhere             anywhere            OWNER UID
match
 iptest

Chain apache-output (1 references)
target     prot opt source               destination
DROP       icmp --  anywhere             anywhere

(nothing in the acctboth chain causes a jump)

Any ideas?

-- 
Jay L.T. Cornwall, http://www.esuna.co.uk/~jay/
PhD Student
Imperial College London