base-files: move network related scripts to a separate package to make the transition to netifd easier

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28495 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/base-files-network/files/etc/hotplug.d/iface/10-routes

@@ -0,0 +1,137 @@
+add_route() {
+	local config="$1"
+
+	# is this route intended for the
+	# $INTERFACE of this hotplug event
+	config_get interface "$config" interface
+	[ "$interface" != "$INTERFACE" ] && return 0
+	
+	# get the real interface name from network config
+	config_get dev "$interface" ifname
+
+	config_get target "$config" target
+	config_get netmask "$config" netmask
+	config_get gateway "$config" gateway
+	config_get metric "$config" metric
+	config_get mtu "$config" mtu
+
+	# make sure there is a gateway and a target
+	[ -n "$target" ] || {
+		echo "Missing target in route section $config"
+		return 1
+	}
+	[ -n "$gateway" ] || {
+		config_get gateway "$interface" gateway
+	}
+
+	# handle "0.0.0.0" as "no gateway given" to allow
+	# defining gateway-less routes while still keeping
+	# the possibility to have static routes with a
+	# proper gateway on interfaces with dynamic ips 
+	[ "$gateway" = "0.0.0.0" ] && gateway=""
+
+	dest="${netmask:+-net "$target" netmask "$netmask"}"
+	dest="${dest:--host "$target"}"
+	
+	/sbin/route add $dest ${gateway:+gw "$gateway"} \
+		${dev:+dev "$dev"} ${metric:+ metric "$metric"} \
+		${mtu:+mss "$mtu"}
+}
+
+add_route6() {
+	local config="$1"
+
+	# is this route intended for the
+	# $INTERFACE of this hotplug event
+	config_get interface "$config" interface
+	[ "$interface" != "$INTERFACE" ] && return 0
+	
+	# get the real interface name from network config
+	config_get dev "$interface" ifname
+
+	config_get target "$config" target
+	config_get gateway "$config" gateway
+	config_get metric "$config" metric
+	config_get mtu "$config" mtu
+
+	# make sure there is a gateway and a target
+	[ -n "$target" ] || {
+		echo "Missing target in route section $config"
+		return 1
+	}
+	[ -n "$gateway" ] || {
+		config_get gateway "$interface" gateway
+	}
+
+	/sbin/route -A inet6 add $target ${gateway:+gw "$gateway"} \
+		${dev:+dev "$dev"} ${metric:+ metric "$metric"} \
+		${mtu:+mss "$mtu"}
+}
+
+# Skip fake devices (e.g. relayd)
+grep -qs "^ *$DEVICE:" /proc/net/dev || exit 0
+
+case "$ACTION" in
+	ifup)
+		include /lib/network
+		scan_interfaces
+
+		# Setup aliases
+		config_set "$INTERFACE" aliases ""
+		config_set "$INTERFACE" alias_count 0
+		config_foreach setup_interface_alias alias "$INTERFACE" "$DEVICE"
+
+		# Save alias references in state vars
+		local aliases
+		config_get aliases "$INTERFACE" aliases
+		[ -z "$aliases" ] || uci_toggle_state network "$INTERFACE" aliases "$aliases"
+
+		# Make ip6addr of parent iface the main address again
+		local ip6addr
+		config_get ip6addr "$INTERFACE" ip6addr
+		[ -z "$ip6addr" ] || {
+			ifconfig "$DEVICE" del "$ip6addr"
+			ifconfig "$DEVICE" add "$ip6addr"
+		}
+		
+		# Setup sysctls
+		local proto accept_ra send_rs
+		
+		config_get proto "$INTERFACE" proto
+		if [ "$proto" = dhcp ]; then
+			accept_ra=1
+			send_rs=0
+		else
+			accept_ra=0
+			send_rs=1
+		fi
+
+		config_get_bool accept_ra "$INTERFACE" accept_ra $accept_ra
+		[ $accept_ra -eq 0 ] || {
+			logger -t ifup "Allowing Router Advertisements on $INTERFACE ($DEVICE)"
+			accept_ra=2
+		}
+		do_sysctl "net.ipv6.conf.$DEVICE.accept_ra" $accept_ra
+
+		config_get_bool send_rs "$INTERFACE" send_rs $send_rs
+		[ $send_rs -eq 0 ] || {
+			logger -t ifup "Enabling Router Solicitations on $INTERFACE ($DEVICE)"
+			send_rs=2
+		}
+		do_sysctl "net.ipv6.conf.$DEVICE.forwarding" $send_rs
+
+
+		# Setup routes
+		config_foreach "add_route" route
+		config_foreach "add_route6" route6
+	;;
+	ifdown)
+		# Bring down named aliases
+		local device=$(uci_get_state network "$INTERFACE" device)
+		local ifn
+		for ifn in $(ifconfig | sed -ne "s/^\(\($DEVICE${device:+\|$device}\|br-$INTERFACE\):[^[:space:]]\+\).*/\1/p"); do
+			ifconfig "$ifn" down
+		done
+	;;
+esac
+