mirror of
https://gitlab.com/shorewall/code.git
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6141995184
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@7312 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
152 lines
3.0 KiB
Plaintext
152 lines
3.0 KiB
Plaintext
#
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# Clear Proxy Arp
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#
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delete_proxyarp() {
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if [ -f ${VARDIR}/proxyarp ]; then
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while read address interface external haveroute; do
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qt arp -i $external -d $address pub
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[ -z "${haveroute}${NOROUTES}" ] && qt ip route del $address dev $interface
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interface=/proc/sys/net/ipv4/conf/$interface
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[ -f $interface/proxyarp ] && echo 0 > $interface/proxy_arp
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done < ${VARDIR}/proxyarp
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fi
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rm -f ${VARDIR}/proxyarp
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}
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#
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# Remove all Shorewall-added rules
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#
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clear_firewall() {
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stop_firewall
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setpolicy INPUT ACCEPT
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setpolicy FORWARD ACCEPT
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setpolicy OUTPUT ACCEPT
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run_iptables -F
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echo 1 > /proc/sys/net/ipv4/ip_forward
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if [ -n "$DISABLE_IPV6" ]; then
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if qt mywhich ip6tables; then
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ip6tables -P INPUT ACCEPT 2> /dev/null
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ip6tables -P OUTPUT ACCEPT 2> /dev/null
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ip6tables -P FORWARD ACCEPT 2> /dev/null
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fi
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fi
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run_clear_exit
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set_state "Cleared"
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logger -p kern.info "$PRODUCT Cleared"
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}
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#
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# Issue a message and stop/restore the firewall
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#
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fatal_error()
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{
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echo " ERROR: $@" >&2
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stop_firewall
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[ -n "$TEMPFILE" ] && rm -f $TEMPFILE
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exit 2
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}
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#
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# Issue a message and stop
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#
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startup_error() # $* = Error Message
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{
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echo " ERROR: $@" >&2
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case $COMMAND in
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start)
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logger -p kern.err "ERROR:$PRODUCT start failed"
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;;
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restart)
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logger -p kern.err "ERROR:$PRODUCT restart failed"
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;;
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restore)
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logger -p kern.err "ERROR:$PRODUCT restore failed"
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;;
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esac
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kill $$
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exit 2
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}
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#
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# Run iptables and if an error occurs, stop/restore the firewall
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#
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run_iptables()
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{
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if [ -n "$COMMENT" ]; then
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$IPTABLES $@ -m comment --comment "$COMMENT"
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else
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$IPTABLES $@
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fi
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if [ $? -ne 0 ]; then
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error_message "ERROR: Command \"$IPTABLES $@\" Failed"
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stop_firewall
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exit 2
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fi
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}
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#
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# Run iptables and if an error occurs, stop/restore the firewall
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#
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run_ip()
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{
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if ! ip $@; then
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error_message "ERROR: Command \"ip $@\" Failed"
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stop_firewall
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exit 2
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fi
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}
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#
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# Run tc and if an error occurs, stop/restore the firewall
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#
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run_tc() {
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if ! tc $@ ; then
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error_message "ERROR: Command \"tc $@\" Failed"
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stop_firewall
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exit 2
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fi
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}
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restore_dynamic_rules() {
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if [ -f ${VARDIR}/save ]; then
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progress_message2 "Setting up dynamic rules..."
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rangematch='source IP range'
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while read target ignore1 ignore2 address ignore3 rest; do
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case $target in
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DROP|reject|logdrop|logreject)
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case $rest in
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$rangematch*)
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run_iptables -A dynamic -m iprange --src-range ${rest#source IP range} -j $target
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;;
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*)
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if [ -z "$rest" ]; then
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run_iptables -A dynamic -s $address -j $target
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else
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error_message "WARNING: Unable to restore dynamic rule \"$target $ignore1 $ignore2 $address $ignore3 $rest\""
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fi
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;;
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esac
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;;
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esac
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done < ${VARDIR}/save
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fi
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}
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#
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# Get a list of all configured broadcast addresses on the system
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#
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get_all_bcasts()
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{
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ip -f inet addr show 2> /dev/null | grep 'inet.*brd' | sed 's/inet.*brd //; s/scope.*//;' | sort -u
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}
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