forked from extern/shorewall_code
First set of changes to allow compilation on a different system
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@3266 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
This commit is contained in:
teastep
parent
160e7432e0
commit
51d9e2aeec
@ -55,14 +55,6 @@ my_mutex_off() {
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[ -n "$HAVE_MUTEX" ] && { mutex_off; HAVE_MUTEX=; }
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}
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#
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# Message to stderr
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#
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error_message() # $* = Error Message
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{
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echo " $@" >&2
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}
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#
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# Fatal error -- stops the firewall after issuing the error message
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#
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@ -1237,14 +1229,32 @@ validate_interfaces_file() {
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dhcp|tcpflags|arp_filter|routefilter|logmartians|sourceroute|blacklist|proxyarp|maclist|nosmurfs|upnp|-)
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;;
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norfc1918)
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addr=$(ip -f inet addr show $interface 2> /dev/null | grep inet | head -n1)
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if [ -n "$addr" ]; then
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addr=$(echo $addr | sed 's/inet //;s/\/.*//;s/ peer.*//')
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for network in 10.0.0.0/8 176.16.0.0/12 192.168.0.0/16; do
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if in_network $addr $network; then
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startup_error "The 'norfc1918' option may not be specified on an interface with an RFC 1918 address. Interface:$interface"
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fi
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done
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if [ $COMMAND = generate ]; then
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cat >> $RESTOREBASE << __EOF__
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progress_message "Verifying 'norfc1918' on $interface"
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addr=\$(ip -f inet addr show $interface 2> /dev/null | grep inet | head -n1)
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if [ -n "\$addr" ]; then
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addr=\$(echo \$addr | sed 's/inet //;s/\/.*//;s/ peer.*//')
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for network in 10.0.0.0/8 176.16.0.0/12 192.168.0.0/16; do
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if in_network \$addr \$network; then
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fatal_error "The 'norfc1918' option has been specified on an interface with an RFC 1918 address. Interface:$interface"
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fi
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done
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fi
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__EOF__
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else
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addr=$(ip -f inet addr show $interface 2> /dev/null | grep inet | head -n1)
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if [ -n "$addr" ]; then
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addr=$(echo $addr | sed 's/inet //;s/\/.*//;s/ peer.*//')
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for network in 10.0.0.0/8 176.16.0.0/12 192.168.0.0/16; do
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if in_network $addr $network; then
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startup_error "The 'norfc1918' option may not be specified on an interface with an RFC 1918 address. Interface:$interface"
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fi
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done
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fi
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fi
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;;
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arp_ignore=*)
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@ -1296,29 +1306,62 @@ setup_providers()
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local table number mark duplicate interface gateway options provider address copy route loose addresses rulenum pref echobin=$(mywhich echo)
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copy_table() {
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run_ip route show table $duplicate | while read net route; do
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case $net in
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default|nexthop)
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;;
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*)
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ensure_and_save_command " ip route add table $number $net $route"
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;;
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esac
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done
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if [ $COMMAND = generate ]; then
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cat >> $RESTOREBASE << __EOF__
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ip route show table $duplicate | while read net route; do
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case \$net in
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default|nexthop)
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;;
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*)
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ip route add table $number \$net \$route"
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;;
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esac
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done
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__EOF__
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else
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run_ip route show table $duplicate | while read net route; do
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case $net in
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default|nexthop)
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;;
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*)
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ensure_and_save_command " ip route add table $number $net $route"
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;;
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esac
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done
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fi
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}
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copy_and_edit_table() {
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run_ip route show table $duplicate | while read net route; do
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case $net in
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default|nexthop)
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;;
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*)
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if list_search $(find_device $route) $copy; then
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ensure_and_save_command " ip route add table $number $net $route"
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fi
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;;
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esac
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done
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if [ $COMMAND = generate ]; then
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cat >> $RESTOREBASE << __EOF__
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ip route show table $duplicate | while read net route; do
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case \$net in
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default|nexthop)
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;;
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*)
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case \$(find_device \$route) in
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`echo $copy\) | sed 's/ /|/g'`
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ip route add table $number \$net \$route
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;;
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esac
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;;
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esac
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done
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__EOF__
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else
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run_ip route show table $duplicate | while read net route; do
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case $net in
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default|nexthop)
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;;
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*)
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if list_search $(find_device $route) $copy; then
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ensure_and_save_command " ip route add table $number $net $route"
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fi
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;;
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esac
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done
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fi
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}
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add_a_provider() {
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@ -1358,28 +1401,32 @@ setup_providers()
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fi
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if [ "x$gateway" = xdetect ] ; then
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#
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# First assume that this is some sort of point-to-point interface
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#
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gateway=$( find_peer $(ip addr ls $interface ) )
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#
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# Maybe there's a default route through this gateway already
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#
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[ -n "$gateway" ] || gateway=$(find_gateway $(ip route ls dev $interface))
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#
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# Last hope -- is there a load-balancing route through the interface?
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#
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[ -n "$gateway" ] || gateway=$(find_nexthop $interface)
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#
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# Be sure we found one
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#
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[ -n "$gateway" ] || fatal_error "Unable to detect the gateway through interface $interface"
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if [ $COMMAND = generate ]; then
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cat >> $RESTOREBASE << __EOF__
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gateway=\$(detect_gateway $interface)
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if [ -z \"\$gateway\" ]; then
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ip route replace \$gateway src \$(find_first_interface_address $interface) dev $interface table $number
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ip route add default via \$gateway dev $interface table $number
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else
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fatal_error "Unable to detect the gateway through interface $interface"
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fi
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__EOF__
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else
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gateway=$(detect_gateway $interface)
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[ -n "$gateway" ] || fatal_error "Unable to detect the gateway through interface $interface"
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fi
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fi
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if [ $COMMAND != check ]; then
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ensure_and_save_command " ip route replace $gateway src $(find_first_interface_address $interface) dev $interface table $number"
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ensure_and_save_command " ip route add default via $gateway dev $interface table $number"
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fi
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case $COMMAND in
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check|generate)
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;;
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*)
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ensure_and_save_command " ip route replace $gateway src $(find_first_interface_address $interface) dev $interface table $number"
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ensure_and_save_command " ip route add default via $gateway dev $interface table $number"
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;;
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esac
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if [ x${mark} != x- ]; then
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verify_mark $mark
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@ -1407,10 +1454,18 @@ setup_providers()
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ROUTEMARK_INTERFACES="$ROUTEMARK_INTERFACES $interface"
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;;
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balance=*)
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DEFAULT_ROUTE="$DEFAULT_ROUTE nexthop via $gateway dev $interface weight ${option#*=}"
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if [ $COMMAND = generate ]; then
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save_command " DEFAULT_ROUTE=\"\$DEFAULT_ROUTE nexthop via \$gateway dev $interface weight ${option#*=}\""
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else
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DEFAULT_ROUTE="$DEFAULT_ROUTE nexthop via $gateway dev $interface weight ${option#*=}"
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fi
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;;
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balance)
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DEFAULT_ROUTE="$DEFAULT_ROUTE nexthop via $gateway dev $interface weight 1"
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if [ $COMMAND = generate ]; then
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save_command " DEFAULT_ROUTE=\"\$DEFAULT_ROUTE nexthop via \$gateway dev $interface weight 1\""
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else
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DEFAULT_ROUTE="$DEFAULT_ROUTE nexthop via $gateway dev $interface weight 1"
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fi
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;;
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loose)
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loose=Yes
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@ -1438,10 +1493,13 @@ setup_providers()
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strip_file providers $1
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if [ -s $TMP_DIR/providers ]; then
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DEFAULT_ROUTE=
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if [ $COMMAND != check ]; then
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progress_message2 "Processing $1..."
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save_progress_message "Restoring Providers..."
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save_command "if [ -z \"\$NOROUTES\" ]; then"
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[ $COMMAND = generate ] && save_command " DEFAULT_ROUTE="
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else
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progress_message2 "Validating $1..."
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fi
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@ -1463,17 +1521,18 @@ setup_providers()
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if [ $COMMAND != check ]; then
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if [ -n "$PROVIDERS" ]; then
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if [ -n "$DEFAULT_ROUTE" ]; then
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ensure_and_save_command " ip route replace default scope global $DEFAULT_ROUTE"
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case $COMMAND in
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generate)
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progress_message " Default route $DEFAULT_ROUTE Compiled."
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;;
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save_command " [ -n \"\$DEFAULT_ROUTE\" ] && ip route replace default scope global \$DEFAULT_ROUTE"
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save_command " progress_message Default route \$DEFAULT_ROUTE Added"
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;;
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*)
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progress_message " Default route $DEFAULT_ROUTE Added."
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if [ -n "$DEFAULT_ROUTE" ]; then
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ensure_and_save_command " ip route replace default scope global $DEFAULT_ROUTE"
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progress_message " Default route $DEFAULT_ROUTE Added."
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fi
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;;
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esac
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fi
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esac
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cat > /etc/iproute2/rt_tables <<EOF
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#
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@ -3856,16 +3915,31 @@ delete_tc()
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run_user_exit tcclear
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run_ip link list | \
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while read inx interface details; do
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case $inx in
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[0-9]*)
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clear_one_tc ${interface%:}
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;;
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*)
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;;
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esac
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done
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if [ $COMMAND = generate ]; then
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cat >> $RESTOREBASE << __EOF__
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ip link list | while read inx interface details; do
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case \$inx in
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[0-9]*)
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qt tc qdisc del dev \${interface%:} root
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qt tc qdisc del dev \${interface%:} ingress
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;;
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*)
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;;
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esac
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done
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__EOF__
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else
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run_ip link list | \
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while read inx interface details; do
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case $inx in
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[0-9]*)
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clear_one_tc ${interface%:}
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;;
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*)
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;;
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esac
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done
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fi
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}
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delete_tc1()
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@ -7641,120 +7715,6 @@ verify_os_version() {
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startup_error "Shorewall can't start with the ipchains kernel module loaded - see FAQ #8"
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}
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#
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# Add IP Aliases
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#
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add_ip_aliases()
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{
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local addresses external interface inet cidr rest val arping=$(mywhich arping)
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address_details()
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{
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#
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# Folks feel uneasy if they don't see all of the same
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# decoration on these IP addresses that they see when their
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# distro's net config tool adds them. In an attempt to reduce
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# the anxiety level, we have the following code which sets
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# the VLSM and BRD from an existing address in the same networks
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#
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# Get all of the lines that contain inet addresses with broadcast
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#
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ip -f inet addr show $interface 2> /dev/null | grep 'inet.*brd' | while read inet cidr rest ; do
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case $cidr in
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*/*)
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if in_network $external $cidr; then
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echo "/${cidr#*/} brd $(broadcastaddress $cidr)"
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break
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fi
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;;
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esac
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done
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}
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do_one()
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{
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val=$(address_details)
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if [ -n "$RETAIN_ALIASES" ]; then
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[ "$COMMAND" = generate ] || run_ip addr add ${external}${val} dev $interface $label
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save_command qt ip addr add ${external}${val} dev $interface $label
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else
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ensure_and_save_command ip addr add ${external}${val} dev $interface $label
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fi
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[ -n "$arping" ] && run_and_save_command qt $arping -U -c 2 -I $interface $external
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echo "$external $interface" >> $STATEDIR/nat
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[ -n "$label" ] && label="with $label"
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progress_message " IP Address $external added to interface $interface $label"
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}
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set -- $ALIASES_TO_ADD
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save_progress_message "Restoring IP Addresses..."
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while [ $# -gt 0 ]; do
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external=$1
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interface=$2
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label=
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if [ "$interface" != "${interface%:*}" ]; then
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label="${interface#*:}"
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interface="${interface%:*}"
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label="label $interface:$label"
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fi
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shift 2
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if list_search $external $(find_interface_addresses $interface) ; then
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save_command qt ip addr add ${external}$(address_details) dev $interface $label
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else
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do_one
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fi
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done
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}
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#
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# Load kernel modules required for Shorewall
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#
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load_kernel_modules()
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{
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save_modules_dir=$MODULESDIR
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[ -z "$MODULESDIR" ] && \
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MODULESDIR=/lib/modules/$(uname -r)/kernel/net/ipv4/netfilter
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modules=$(find_file modules)
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if [ -f $modules -a -d $MODULESDIR ]; then
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progress_message "Loading Modules..."
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. $modules
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fi
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MODULESDIR=$save_modules_dir
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}
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save_load_kernel_modules()
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{
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modules=$(find_file modules)
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save_progress_message "Loading kernel modules..."
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save_command "reload_kernel_modules <<__EOF__"
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while read command; do
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case "$command" in
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loadmodule*)
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save_command $command
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;;
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esac
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done < $modules
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save_command __EOF__
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save_command ""
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}
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# Verify that the 'ip' program is installed
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verify_ip() {
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@ -8726,9 +8686,7 @@ activate_rules()
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#
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# There is a fw->fw chain. Send loopback output through that chain
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#
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run_ip link ls | grep LOOPBACK | while read ordinal interface rest ; do
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run_iptables -A OUTPUT -o ${interface%:*} -j $chain
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done
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run_iptables -A OUTPUT -o lo -j $chain
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#
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# And delete the unconditional ACCEPT rule
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#
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@ -8825,7 +8783,7 @@ define_firewall() # $1 = Command (Start or Restart)
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save_command "MODULESDIR=\"$MODULESDIR\""
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save_command "MODULE_SUFFIX=\"$MODULE_SUFFIX\""
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save_load_kernel_modules
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save_command "load_kernel_modules"
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progress_message2 "Initializing..."; initialize_netfilter
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@ -9029,23 +8987,32 @@ compile_firewall() # $1 = File Name
|
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[ -n "$RESTOREBASE" ] || startup_error "Cannot create temporary file in /var/lib/shorewall"
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echo '#bin/sh' >> $RESTOREBASE
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save_command "#"
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save_command "# Compiled startup file generated by Shorewall $version - $(date)"
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save_command "#"
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save_command ". /usr/share/shorewall/functions"
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cat >> $RESTOREBASE << __EOF__
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#
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# Compiled startup file generated by Shorewall $version - $(date)"
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#
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. /usr/share/shorewall/functions
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__EOF__
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f=$(find_file params)
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[ -f $f ] && \
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save_command ". $(resolve_file $f)"
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cat >> $RESTOREBASE << __EOF__
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#
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COMMAND=restore
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[ -n \${QUIET:=0} ]
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MODULESDIR="$MODULESDIR"
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MODULE_SUFFIX="$MODULE_SUFFIX"
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save_command "#"
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save_command "COMMAND=restore"
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save_command "MODULESDIR=\"$MODULESDIR\""
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save_command "MODULE_SUFFIX=\"$MODULE_SUFFIX\""
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fatal_error()
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{
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echo " ERROR: \$@" >&2
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exit 2
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}
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||||
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save_load_kernel_modules
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load_kernel_modules
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__EOF__
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progress_message2 "Initializing..."
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save_progress_message "Initializing..."
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||||
@ -2,6 +2,14 @@
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#
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# Shorewall 3.0 -- /usr/share/shorewall/functions
|
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|
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#
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||||
# Message to stderr
|
||||
#
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||||
error_message() # $* = Error Message
|
||||
{
|
||||
echo " $@" >&2
|
||||
}
|
||||
|
||||
# Function to truncate a string -- It uses 'cut -b -<n>'
|
||||
# rather than ${v:first:last} because light-weight shells like ash and
|
||||
# dash do not support that form of expansion.
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@ -314,6 +322,26 @@ reload_kernel_modules() {
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||||
|
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}
|
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|
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#
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# Load kernel modules required for Shorewall
|
||||
#
|
||||
load_kernel_modules()
|
||||
{
|
||||
save_modules_dir=$MODULESDIR
|
||||
|
||||
[ -z "$MODULESDIR" ] && \
|
||||
MODULESDIR=/lib/modules/$(uname -r)/kernel/net/ipv4/netfilter
|
||||
|
||||
modules=$(find_file modules)
|
||||
|
||||
if [ -f $modules -a -d $MODULESDIR ]; then
|
||||
progress_message "Loading Modules..."
|
||||
. $modules
|
||||
fi
|
||||
|
||||
MODULESDIR=$save_modules_dir
|
||||
}
|
||||
|
||||
#
|
||||
# Call this function to assert MUTEX with Shorewall. If you invoke the
|
||||
# /sbin/shorewall program while holding MUTEX, you should pass "nolock" as
|
||||
@ -849,6 +877,27 @@ find_interface_by_mac() {
|
||||
done
|
||||
}
|
||||
|
||||
#
|
||||
# Find interface address--returns the first IP address assigned to the passed
|
||||
# device
|
||||
#
|
||||
find_first_interface_address() # $1 = interface
|
||||
{
|
||||
#
|
||||
# get the line of output containing the first IP address
|
||||
#
|
||||
addr=$(ip -f inet addr show $1 2> /dev/null | grep 'inet .* global' | head -n1)
|
||||
#
|
||||
# If there wasn't one, bail out now
|
||||
#
|
||||
[ -n "$addr" ] || fatal_error "Can't determine the IP address of $1"
|
||||
#
|
||||
# Strip off the trailing VLSM mask (or the peer IP in case of a P-t-P link)
|
||||
# along with everything else on the line
|
||||
#
|
||||
echo $addr | sed 's/inet //;s/\/.*//;s/ peer.*//'
|
||||
}
|
||||
|
||||
#
|
||||
# Find interface addresses--returns the set of addresses assigned to the passed
|
||||
# device
|
||||
@ -979,5 +1028,84 @@ report_capabilities() {
|
||||
|
||||
}
|
||||
|
||||
# Add IP Aliases
|
||||
#
|
||||
add_ip_aliases() # $1 = List of addresses
|
||||
{
|
||||
local addresses external interface inet cidr rest val arping=$(mywhich arping)
|
||||
|
||||
address_details()
|
||||
{
|
||||
#
|
||||
# Folks feel uneasy if they don't see all of the same
|
||||
# decoration on these IP addresses that they see when their
|
||||
# distro's net config tool adds them. In an attempt to reduce
|
||||
# the anxiety level, we have the following code which sets
|
||||
# the VLSM and BRD from an existing address in the same networks
|
||||
#
|
||||
# Get all of the lines that contain inet addresses with broadcast
|
||||
#
|
||||
ip -f inet addr show $interface 2> /dev/null | grep 'inet.*brd' | while read inet cidr rest ; do
|
||||
case $cidr in
|
||||
*/*)
|
||||
if in_network $external $cidr; then
|
||||
echo "/${cidr#*/} brd $(broadcastaddress $cidr)"
|
||||
break
|
||||
fi
|
||||
;;
|
||||
esac
|
||||
done
|
||||
}
|
||||
|
||||
do_one()
|
||||
{
|
||||
val=$(address_details)
|
||||
|
||||
ip addr add ${external}${val} dev $interface $label
|
||||
[ -n "$arping" ] && qt $arping -U -c 2 -I $interface $external
|
||||
echo "$external $interface" >> $STATEDIR/nat
|
||||
[ -n "$label" ] && label="with $label"
|
||||
progress_message " IP Address $external added to interface $interface $label"
|
||||
}
|
||||
|
||||
progress_message "Adding IP Addresses..."
|
||||
|
||||
while [ $# -gt 0 ]; do
|
||||
external=$1
|
||||
interface=$2
|
||||
label=
|
||||
|
||||
if [ "$interface" != "${interface%:*}" ]; then
|
||||
label="${interface#*:}"
|
||||
interface="${interface%:*}"
|
||||
label="label $interface:$label"
|
||||
fi
|
||||
|
||||
shift 2
|
||||
|
||||
list_search $external $(find_interface_addresses $interface) || do_one
|
||||
done
|
||||
}
|
||||
|
||||
detect_gateway() # $1 = interface
|
||||
{
|
||||
local interface=$1
|
||||
#
|
||||
# First assume that this is some sort of point-to-point interface
|
||||
#
|
||||
gateway=$( find_peer $(ip addr ls $interface ) )
|
||||
#
|
||||
# Maybe there's a default route through this gateway already
|
||||
#
|
||||
[ -n "$gateway" ] || gateway=$(find_gateway $(ip route ls dev $interface))
|
||||
#
|
||||
# Last hope -- is there a load-balancing route through the interface?
|
||||
#
|
||||
[ -n "$gateway" ] || gateway=$(find_nexthop $interface)
|
||||
#
|
||||
# Be sure we found one
|
||||
#
|
||||
[ -n "$gateway" ] && echo $gateway
|
||||
}
|
||||
|
||||
SHOREWALL_LIBRARY=Loaded
|
||||
|
||||
Loading…
Reference in New Issue
Block a user