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Final Changes for 1.3.1
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@47 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
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teastep
parent
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@ -1,30 +1,13 @@
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Changes since 1.2.13
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Changes since 1.3.0
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1. Changed all file versions to 1.3
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1. Corrected policy handling for "all z CONTINUE" policies.
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2. Corrected problems with "-" as LOGLEVEL in the policy file.
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3. Added /etc/shorewall/rfc1918 file for defining the behavior of the
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'norfc1918' interface option.
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4. Avoided forwarding rules between zones on the same interface when 'multi'
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isn't specified on that interface.
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2. Changed the rules file and firewall file to implement the new forwarding
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and redirection syntax.
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3. Removed the sample rules from the rules file -- the quickstart samples
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should provide those sample rules.
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4. Added a silent Auth reject rule to common.def.
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5. Changed the handling of the nat table to have a separate chain for each
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source zone.
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6. Removed the code that tested each rules column for "none" -- this was never
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documented and was there to support the brain-dead parameterized samples.
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7. Reworked the chain structure in the filter table so that each interface has
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its own input and forward chain.
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8. Added logic to allow a subzone to be excluded from a DNAT or REDIRECT rule.
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9. Removed white list capability
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10. Added 'filterping' interface option.
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@ -28,7 +28,7 @@
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# shown below. Simply run this script to revert to your prior version of
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# Shoreline Firewall.
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VERSION=1.3.0
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VERSION=1.3.1
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usage() # $1 = exit status
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{
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@ -103,6 +103,8 @@ restore_file /etc/shorewall/blacklist
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restore_file /etc/shorewall/whitelist
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restore_file /etc/shorewall/rfc1918
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restore_file /etc/shorewall/version
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oldversion="`cat /etc/shorewall/version`"
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@ -1964,15 +1964,18 @@ policy_rules() # $1 = chain to add rules to
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run_iptables -A $1 -j common
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target=reject
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;;
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CONTINUE)
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target=
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;;
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*)
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fatal_error "Invalid policy ($policy) for $1 to $2"
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fatal_error "Invalid policy ($policy) for $1"
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;;
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esac
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[ $# -eq 3 ] && [ "x${3}" != "x-" ] && run_iptables -A $1 -j LOG $LOGPARMS \
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--log-prefix "Shorewall:$chain:$policy:" --log-level $3
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run_iptables -A $1 -j $target
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--log-prefix "Shorewall:${1}:${2}:" --log-level $3
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[ -n "$target" ] && run_iptables -A $1 -j $target
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}
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################################################################################
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@ -2000,17 +2003,7 @@ default_policy() # $1 = client $2 = server
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echo " Policy $policy for $1 to $2 using chain $chain1"
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if [ "$policy" = CONTINUE ]; then
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####################################################################
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# The policy is CONTINUE -- simply add any logging and syn flood
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# jump rules to the canonical chain
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#
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[ -n "$loglevel" ] && run_iptables -A $chain -j LOG $LOGPARMS \
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--log-prefix "Shorewall:$chain:$policy:" --log-level $loglevel
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[ -n "$synparams" ] && \
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enable_syn_flood_protection $chain $chain1
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elif [ "$chain" = "$chain1" ]; then
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if [ "$chain" = "$chain1" ]; then
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####################################################################
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# The policy chain is the canonical chain; add policy rule to it
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# The syn flood jump has already been added if required.
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@ -2019,14 +2012,13 @@ default_policy() # $1 = client $2 = server
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else
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####################################################################
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# Policy chain is different; add a rule to jump from the canonical
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# chain to the policy chain and optionally, insert a jump to the
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# policy chain's syn flood chain.
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# chain to the policy chain (unless the policy is CONTINUE) and
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# optionally, insert a jump to the policy chain's syn flood chain.
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#
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run_iptables -A $chain -j $chain1
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[ -n "$synparams" ] && \
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enable_syn_flood_protection $chain $chain1
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fi
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}
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@ -2071,6 +2063,9 @@ complete_standard_chain() # $1 = chain, $2 = source zone, $3 = destination zone
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while read client server policy loglevel synparams; do
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expandv client server policy loglevelsynparams
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[ "x$loglevel" = "x-" ] && loglevel=
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case "$client" in
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all|ALL)
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if [ "$server" = "$3" -o "$server" = "all" ]; then
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@ -2110,15 +2105,14 @@ rules_chain() # $1 = source zone, $2 = destination zone
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case "$client" in
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all|ALL)
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if [ "$server" = "$2" -o "$server" = "all" ]; then
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echo all2${server}
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echo all2${server}
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return
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fi
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;;
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*)
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if [ "$client" = "$1" ] && \
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[ "$server" = "all" -o "$server" = "$2" ]; then
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echo ${client}2${server}
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return
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if [ "$client" = "$1" -a "$server" = "all" ]; then
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echo ${client}2${server}
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return
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fi
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;;
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esac
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@ -2535,12 +2529,7 @@ add_common_rules() {
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strip_file rfc1918
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disp="LOG --log-prefix "Shorewall:rfc1918:DROP:" --log-level info"
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########################################################################
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# Since the limited broadcast address falls into 240.0.0.0/4 which we
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# filter, we must make a special case. Also, we drop the autoconfig
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# class B but don't log since too many folks on cable/dsl screw up
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# their Windows Networking config and end up with an autoconfiged IP.
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#
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createchain rfc1918 no
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createchain logdrop no
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@ -2651,34 +2640,25 @@ apply_policy_rules() {
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[ -n "$synparams" ] && setup_syn_flood_chain $chain $synparams
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if havechain $chain; then
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[ -n "$synparams" ] && enable_syn_flood_protection $chain $chain
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elif [ "$client" = "all" -o "$server" = "all" ]; then
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[ -n "$synparams" ] && \
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run_iptables -I $chain 2 -p tcp --syn -j @$chain
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else
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#
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# A wild-card rule. Create the chain and add policy
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# rules if the policy isn't CONTINUE
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#
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createchain $chain
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# rules
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#
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# We must include the ESTABLISHED and RELATED state
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# rule here to account for replys and reverse
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# related sessions associated with sessions going
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# in the other direction
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#
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if [ "$policy" != CONTINUE ]; then
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policy_rules $chain $policy $loglevel
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[ -n "$synparams" ] && \
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[ $policy = ACCEPT ] && \
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run_iptables -I $chain 2 -p tcp --syn -j @$chain
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fi
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else
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#
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# This policy chain is also a canonical chain -- create it
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#
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createchain $chain
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[ "$client" = "all" -o "$server" = "all" ] && \
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policy_rules $chain $policy $loglevel
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[ -n "$synparams" ] && \
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[ $policy = ACCEPT ] && \
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[ $policy = ACCEPT -o $policy = CONTINUE ] && \
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run_iptables -I $chain 2 -p tcp --syn -j @$chain
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fi
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@ -2731,23 +2711,20 @@ activate_rules() {
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interface=${host%:*}
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subnet=${host#*:}
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chain1=`forward_chain $interface`
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list_search $interface $multi_interfaces && multi=yes || multi=
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for host1 in $dest_hosts; do
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interface1=${host1%:*}
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subnet1=${host1#*:}
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if [ $interface != $interface1 -o \
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"x$subnet" != "x$subnet1" -o \
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-n "$multi" ]; then
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if [ $interface != $interface1 -o -n "$multi" ]; then
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run_iptables -A $chain1 -s $subnet \
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-o $interface1 -d $subnet1 -j $chain
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fi
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done
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done
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done
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done
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for interface in $all_interfaces; do
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@ -54,7 +54,7 @@
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# /etc/rc.d/rc.local file is modified to start the firewall.
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#
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VERSION=1.3.0
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VERSION=1.3.1
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usage() # $1 = exit status
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{
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@ -423,6 +423,15 @@ if [ -f ${PREFIX}/etc/shorewall/whitelist ]; then
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rm -f ${PREFIX}/etc/shorewall/whitelist
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fi
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#
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# Install the rfc1918 file
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#
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if [ -f ${PREFIX}/etc/shorewall/rfc1918 ]; then
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backup_file /etc/shorewall/rfc1918
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else
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run_install -o $OWNER -g $GROUP -m 0600 rfc1918 ${PREFIX}/etc/shorewall/rfc1918
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echo -e "\nRFC 1918 file installed as ${PREFIX}/etc/shorewall/rfc1918"
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fi
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#
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# Backup the version file
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#
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if [ -z "$PREFIX" ]; then
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@ -1,31 +1,15 @@
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This is a major release of Shorewall.
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This is a minor release of Shorewall.
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In this release:
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1. The rules syntax for port forwarding and port redirection has been
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simplified.
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2. Compatibility has been maintained with version 1.2 configurations so
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that users may migrate their configuration at their convenience.
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WARNING: Compatibility has NOT been maintained with the parameterized
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sample configurations which were withdrawn on 4/8/2002. Users
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still employing one of those samples must upgrade to the
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latest samples before running Shorewall 1.3 (Beta or Release).
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3. You may now exclude zone A from a DNAT or REDIRECT rule that applies
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to zone B where zone A is a subzone of sone B.
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4. The whitelist capability has been deimplemented. With recent changes
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to the firewall structure and change 3. above, white lists are now
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best implemented using zones as shown at:
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http://www.shorewall.net/whitelisting_under_shorewall.htm
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5. A 'filterping' interface option has been added to allow the
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rules and policy files to control the handling of ICMP echo-request
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(ping) requests that are addressed to the firewall.
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1. The handling of "all z CONTINUE" policies has been corrected. Use of
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these policies greatly simplifies whitelisting and other nested zone
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configuration.
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2. Added an /etc/shorewall/rfc1918 configuration file for defining the
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behavior of the 'norfc1918' interface option.
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@ -7,7 +7,7 @@
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#
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# Columns are:
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#
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# SUBNET The subnet
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# SUBNET The subnet (host addresses also allowed)
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# TARGET Where to send packets to/from this subnet
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# RETURN - let the packet be processed normally
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# DROP - silently drop the packet
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@ -24,3 +24,4 @@
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192.168.0.0/16 logdrop # RFC 1918
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172.16.0.0/12 logdrop # RFC 1918
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240.0.0.0/4 logdrop # Reserved
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#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE
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@ -1,6 +1,6 @@
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%define name shorewall
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%define version 1.3
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%define release 0
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%define release 1
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%define prefix /usr
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Summary: Shoreline Firewall is an iptables-based firewall for Linux systems.
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@ -70,6 +70,7 @@ if [ $1 = 0 ]; then if [ -x /sbin/insserv ]; then /sbin/insserv -r /etc/init.d/s
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%attr(0600,root,root) %config(noreplace) /etc/shorewall/tunnels
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%attr(0600,root,root) %config(noreplace) /etc/shorewall/hosts
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%attr(0600,root,root) %config(noreplace) /etc/shorewall/blacklist
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%attr(0600,root,root) %config(noreplace) /etc/shorewall/rfc1918
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%attr(0544,root,root) /sbin/shorewall
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%attr(0444,root,root) /etc/shorewall/functions
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/etc/shorewall/firewall
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@ -77,6 +78,9 @@ if [ $1 = 0 ]; then if [ -x /sbin/insserv ]; then /sbin/insserv -r /etc/init.d/s
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%doc COPYING INSTALL changelog.txt releasenotes.txt tunnel
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%changelog
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* Fri May 31 2002 Tom Eastep <tom@shorewall.net>
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- Changed version to 1.3.1
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- Added the rfc1918 file
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* Wed May 29 2002 Tom Eastep <tom@shorewall.net>
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- Changed version to 1.3.0
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* Mon May 20 2002 Tom Eastep <tom@shorewall.net>
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@ -26,7 +26,7 @@
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# You may only use this script to uninstall the version
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# shown below. Simply run this script to remove Seattle Firewall
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VERSION=1.3.0
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VERSION=1.3.1
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usage() # $1 = exit status
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{
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@ -104,6 +104,7 @@ if [ -n "$VERSION" ]; then
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remove_file /etc/shorewall/modules-${VERSION}.bkout
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remove_file /etc/shorewall/blacklist-${VERSION}.bkout
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remove_file /etc/shorewall/whitelist-${VERSION}.bkout
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remove_file /etc/shorewall/rfc1918-${VERSION}.bkout
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fi
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remove_file /etc/shorewall/firewall
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@ -144,6 +145,8 @@ remove_file /etc/shorewall/blacklist
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remove_file /etc/shorewall/whitelist
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remove_file /etc/shorewall/rfc1918
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remove_file /etc/shorewall/shorewall.conf
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remove_file /etc/shorewall/version
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@ -3,15 +3,12 @@
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#
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# This file determines your network zones. Columns are:
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#
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# ZONE Short name of the zone. If a sub-zone of a
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# previously-declared zone then it is
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# followed by a colon and the name of the
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# parent zone.
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# ZONE Short name of the zone
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# DISPLAY Display name of the zone
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# COMMENTS Comments about the zone
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#
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#ZONE[:PARENT] DISPLAY COMMENTS
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net Net Internet
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loc Local Local networks
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dmz DMZ Demilitarized zone
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#ZONE DISPLAY COMMENTS
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net Net Internet
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loc Local Local networks
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dmz DMZ Demilitarized zone
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#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE
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