1 files changed, 58 insertions, 0 deletions
diff --git a/config.d/controller/modules/functions/net_script.sh b/config.d/controller/modules/functions/net_script.sh
new file mode 100755
index 0000000..ca4ff9a
--- /dev/null
+++ b/config.d/controller/modules/functions/net_script.sh
@@ -0,0 +1,58 @@
+#!/bin/busybox sh
+# udhcpc script edited by Tim Riker <Tim@Rikers.org>
+
+RESOLV_CONF="/etc/resolv.conf"
+
+[ -n "$1" ] || { echo "Error: should be called from udhcpc"; exit 1; }
+
+NETMASK=""
+[ -n "$subnet" ] && NETMASK="netmask $subnet"
+BROADCAST="broadcast +"
+[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
+
+case "$1" in
+	deconfig)
+		echo "Setting IP address 0.0.0.0 on $interface"
+		ifconfig $interface 0.0.0.0
+		;;
+
+	renew|bound)
+		echo "Setting IP address $ip on $interface"
+		ifconfig $interface $ip $NETMASK $BROADCAST
+
+		if [ -n "$router" ] ; then
+			echo "Deleting routers"
+			while route del default gw 0.0.0.0 dev $interface ; do
+				:
+			done
+
+			metric=0
+			for i in $router ; do
+				echo "Adding router $i"
+				if [ "$subnet" = "255.255.255.255" ]; then
+	# special case for /32 subnets:
+	# /32 instructs kernel to always use routing for all outgoing packets
+	# (they can never be sent to local subnet - there is no local subnet for /32).
+	# Used in datacenters, avoids the need for private ip-addresses between two hops.
+					ip route add $i dev $interface
+				fi
+				route add default gw $i dev $interface metric $((metric++))
+			done
+		fi
+
+		echo "Recreating $RESOLV_CONF"
+		# If the file is a symlink somewhere (like /etc/resolv.conf
+		# pointing to /run/resolv.conf), make sure things work.
+		realconf=$(readlink -f "$RESOLV_CONF" 2>/dev/null || echo "$RESOLV_CONF")
+		tmpfile="$realconf-$$"
+		> "$tmpfile"
+		[ -n "$domain" ] && echo "search $domain" >> "$tmpfile"
+		for i in $dns ; do
+			echo " Adding DNS server $i"
+			echo "nameserver $i" >> "$tmpfile"
+		done
+		mv "$tmpfile" "$realconf"
+		;;
+esac
+
+exit 0