X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/499a89fad2a72b3064a713b73dd99d792c535a5f..0087a84b1950130de46613f4f0680c2032be5fa7:/package/base-files/files/usr/share/udhcpc/default.script

diff --git a/package/base-files/files/usr/share/udhcpc/default.script b/package/base-files/files/usr/share/udhcpc/default.script
index 7dfb0f93e..b32b2c9f2 100755
--- a/package/base-files/files/usr/share/udhcpc/default.script
+++ b/package/base-files/files/usr/share/udhcpc/default.script
@@ -6,11 +6,13 @@ include /lib/network
 RESOLV_CONF="/tmp/resolv.conf.auto"
 
 change_state () {
+	[ -n "$ifc" ] || return
 	uci_revert_state "$1" "$2" "$3" "$4"
 	uci_set_state "$1" "$2" "$3" "$4"
 }
 
 uci_get() {
+	[ -n "$ifc" ] || return
 	uci -P /dev/null get "$1" 2>/dev/null
 }
 
@@ -23,9 +25,11 @@ setup_interface () {
 	local user_dns
 	local user_router
 
-	config_get old_ip        "$ifc" ipaddr
-	config_get old_broadcast "$ifc" broadcast
-	config_get old_subnet    "$ifc" netmask
+	[ -n "$ifc" ] && {
+		config_get old_ip        "$ifc" ipaddr
+		config_get old_broadcast "$ifc" broadcast
+		config_get old_subnet    "$ifc" netmask
+	}
 
 	[ "$ip" != "$old_ip" ] \
 	|| [ "${broadcast:-+}" != "$old_broadcast" ] \
@@ -40,12 +44,14 @@ setup_interface () {
 
 
 	# Default Route
-	change_state network "$ifc" lease_gateway "$router"
-	config_get old_router "$ifc" gateway
-	user_router=$(uci_get "network.$ifc.gateway")
-	[ -n "$user_router" ] && router="$user_router"
+	[ -n "$ifc" ] && {
+		change_state network "$ifc" lease_gateway "$router"
+		config_get old_router "$ifc" gateway
+		user_router=$(uci_get "network.$ifc.gateway")
+		[ -n "$user_router" ] && router="$user_router"
+	}
 
-	[ -n "$router" ] && [ "$router" != "0.0.0.0" ] && [ "$router" != "$old_router" ] && {
+	[ -n "$router" ] && [ "$router" != "0.0.0.0" ] && [ "$router" != "255.255.255.255" ] && [ "$router" != "$old_router" ] && {
 		echo "udhcpc: setting default routers: $router"
 
 		local valid_gw=""
@@ -62,13 +68,87 @@ setup_interface () {
 		change_state network "$ifc" gateway "$router"
 	}
 
+	# CIDR STATIC ROUTES (rfc3442)
+	[ -n "$cidrroute" ] && {
+		# This defines how many CIDR Routes can be assigned so that we do not enter
+		# an endless loop on malformed data
+		MAXCIDRROUTES=24;
+		while [ ${MAXCIDRROUTES} -gt "0" ]; do
+			# Format is
+			# $MASK $NW $GW
+			# $NW == AAA.BBB.CCC.DDD
+			# $GW == EEE.FFF.CCC.DDD
+			# $MASK AAA.[BBB].[CCC].[DDD] EEE.FFF.GGG.HHH
+			#   1    2    3     4     5    6   7   8   9
+			MASK=$(echo $cidrroute | awk '{ print $1 }')
+			if [ ${MASK} = "0" ] ; then
+				# $MASK EEE.FFF.GGG.HHH
+				#   1    2   3   5   6
+				NW="0"
+				GW=$(echo $cidrroute | awk '{ print $2"."$3"."$4"."$5 }' )
+			elif [ ${MASK} -le "8" ] ; then
+				# $MASK AAA EEE.FFF.GGG.HHH
+				#   1    2   3   5   6   7
+				NW=$(echo $cidrroute | awk '{ print $2 }' )
+				GW=$(echo $cidrroute | awk '{ print $3"."$4"."$5"."$6 }' )
+			elif [ ${MASK} -le "16" ] ; then
+				# $MASK AAA.BBB EEE.FFF.GGG.HHH
+				#   1    2   3   5   6   7   8
+				NW=$(echo $cidrroute | awk '{ print $2"."$3 }' )
+				GW=$(echo $cidrroute | awk '{ print $4"."$5"."$6"."$7 }' )
+			elif [ ${MASK} -le "24" ] ; then
+				# $MASK AAA.BBB.CCC EEE.FFF.GGG.HHH
+				#   1    2   3   4   5   6   7   8
+				NW=$(echo $cidrroute | awk '{ print $2"."$3"."$4 }' )
+				GW=$(echo $cidrroute | awk '{ print $5"."$6"."$7"."$8 }' )
+
+			else
+				# $MASK AAA.BBB.CCC.DDD EEE.FFF.GGG.HHH
+				#   1    2   3   4   5   6   7   8   9
+				NW=$(echo $cidrroute | awk '{ print $2"."$3"."$4"."$5 }' )
+				GW=$(echo $cidrroute | awk '{ print $6"."$7"."$8"."$9 }' )
+			fi
+			echo [$ROUTECOUNTER] Route Network: $NW/$MASK Gateway: $GW on $interface
+
+			# TODO: Check for malformed data here to eliminate counter workaround
+			# Malformed data is: ... or xxx... or xxx.yyy.. or xxx.yyy.zzz.
+
+			[ -n "$NW" ] && [ -n "$GW" ] && {
+				route add $NW gw $GW dev $interface
+			}
+
+			# Clear the strings incase they don't get set next time around
+			if [ ${NW} = "0" ]; then
+				NW=""
+			fi
+			TMP="$MASK $NW $GW "
+			NW=""
+			GW=""
+
+			# Remove the '.' so that we can delete them from the input with sed
+			TMP=$(echo $TMP | sed "s/\./ /g")
+
+			# Remove the previous entry from cidrroute
+			cidrroute=$(echo $cidrroute | sed "s/$TMP//g")
+
+			# Add to counter
+			let ROUTECOUNTER=$ROUTECOUNTER+1;
+			let MAXCIDRROUTES=$MAXCIDRROUTES-1;
+
+			# Leave the loop if cidrroutes is empty (we've parsed everything)
+			[ ! -n "$cidrroute" ] && break
+
+		done
+
+		echo "done."
+	}
 
 	# DNS
 	config_get old_dns "$ifc" dns
 	user_dns=$(uci_get "network.$ifc.dns")
 	[ -n "$user_dns" ] && dns="$user_dns"
 
-	[ -n "$dns" ] && [ "$dns" != "$old_dns" ] && {
+	[ -n "$dns" ] && [ ! -s "${RESOLV_CONF}" -o "$dns" != "$old_dns" ] && {
 		echo "udhcpc: setting dns servers: $dns"
 		echo -n > "${RESOLV_CONF}.tmp"
 		for i in $dns ; do
@@ -81,6 +161,7 @@ setup_interface () {
 		change_state network "$ifc" dns "$dns"
 	}
 
+	[ -n "$ifc" ] || return
 
 	# UCI State
 	change_state network "$ifc" lease_server "$serverid"
@@ -98,19 +179,34 @@ setup_interface () {
 
 
 scan_interfaces
-
-for ifc in $interfaces; do
-	config_get ifname "$ifc" ifname
-	[ "$ifname" = "$interface" ] || continue
-
-	config_get proto "$ifc" proto
-	[ "$proto" = "dhcp" ] || continue
+applied=
+for ifc in $interfaces __default; do
+	if [ "$ifc" = __default ]; then
+		ifc=""
+		[ -n "$applied" ] && continue
+	else
+		config_get ifname "$ifc" ifname
+		[ "$ifname" = "$interface" ] || continue
+
+		config_get proto "$ifc" proto
+		[ "$proto" = "dhcp" ] || continue
+		applied=true
+	fi
 
 	case "$1" in
 		deconfig)
 			ifconfig "$interface" 0.0.0.0
-			env -i ACTION="ifdown" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface
-			uci_revert_state network "$ifc"
+			[ -n "$ifc" ] && {
+				env -i ACTION="ifdown" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface
+			
+				config_get device "$ifc" device
+				config_get ifname "$ifc" ifname
+				config_get aliases "$ifc" aliases
+				uci_revert_state network "$ifc"
+				[ -n "$device" ] && uci_set_state network "$ifc" device "$device"
+				[ -n "$ifname" ] && uci_set_state network "$ifc" ifname "$ifname"
+				[ -n "$aliases" ] && uci_set_state network "$ifc" aliases "$aliases"
+			}
 		;;
 		renew)
 			setup_interface update
@@ -119,9 +215,9 @@ for ifc in $interfaces; do
 			setup_interface ifup
 		;;
 	esac
-
-	# user rules
-	[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
 done
 
+# user rules
+[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
+
 exit 0