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Improve rules generated for exclusion lists

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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@2495 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
This commit is contained in:
teastep 2005-08-15 18:33:51 +00:00
parent ef134da4b9
commit 0f7def6c67
1 changed files with 27 additions and 11 deletions
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38
Shorewall/firewall
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@ -4858,6 +4858,24 @@ process_rule() # $1 = target
verify_interface $1 || interface_error $1
}
handle_exclusion()
{
build_exclusion_chain newchain filter "$excludesource" "$excludedest"
if [ $(list_count $addr) -eq 1 -a -n "$CONNTRACK_MATCH" ]; then
run_iptables -A $chain $(fix_bang $proto $sports $multiport $dports) -m conntrack --ctorigdst $addr -j $newchain
addr=
else
run_iptables -A $chain $(fix_bang $proto $sports $multiport $dports) -j $newchain
fi
proto=
sports=
multiport=
dports=
chain=$newchain
}
# Set source variables. The 'cli' variable will hold the client match predicate(s).
cli=
@ -4984,6 +5002,10 @@ process_rule() # $1 = target
fatal_error "Only DNAT, SAME and REDIRECT rules may specify destination port mapping; rule \"$rule\""
fi
if [ -n "${excludesource}${excludedest}" ]; then
handle_exclusion
fi
if [ -z "$dnat_only" ]; then
if [ -n "$serv" ]; then
for serv1 in $(separate_list $serv); do
@ -5037,6 +5059,10 @@ process_rule() # $1 = target
# Destination is a simple zone
if [ $COMMAND != check ]; then
if [ -n "${excludesource}${excludedest}" ]; then
handle_exclusion
fi
if [ -n "$addr" ]; then
for adr in $(separate_list $addr); do
if [ -n "$loglevel" ]; then
@ -5311,17 +5337,7 @@ process_rule() # $1 = target
[ "x$protocol" = "x-" ] && protocol=all || protocol=${protocol:=all}
if [ $COMMAND != check ]; then
ensurechain $chain
if [ -n "${excludesource}${excludedest}" ]; then
build_exclusion_chain newchain filter "$excludesource" "$excludedest"
run_iptables -A $chain -p $protocol -j $newchain
chain=$newchain
fi
fi
[ $COMMAND = check ] || ensurechain $chain
# Generate Netfilter rule(s)