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

1 files changed, 161 insertions, 0 deletions

diff --git a/package/base-files-network/files/usr/share/udhcpc/default.script b/package/base-files-network/files/usr/share/udhcpc/default.script
new file mode 100755
index 000000000..8dbff4747
--- /dev/null
+++ b/package/base-files-network/files/usr/share/udhcpc/default.script
@@ -0,0 +1,161 @@
+#!/bin/sh
+[ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
+
+. /etc/functions.sh
+include /lib/network
+RESOLV_CONF="/tmp/resolv.conf.auto"
+
+change_state () {
+	[ -n "$ifc" ] || return
+	uci_revert_state "$1" "$2" "$3" "$4"
+	uci_set_state "$1" "$2" "$3" "$4"
+}
+
+set_classless_routes() {
+	local max=128
+	local type
+	while [ -n "$1" -a -n "$2" -a $max -gt 0 ]; do
+		[ ${1##*/} -eq 32 ] && type=host || type=net
+		echo "udhcpc: adding route for $type $1 via $2"
+		route add -$type "$1" gw "$2" dev "$interface"
+		max=$(($max-1))
+		shift 2
+	done
+}
+
+setup_interface () {
+	local old_ip
+	local old_broadcast
+	local old_subnet
+	local old_router
+	local old_dns
+	local user_dns
+	local user_router
+	local user_metric
+
+	[ -n "$ifc" ] && {
+		old_ip="$(uci_get_state network "$ifc" ipaddr)"
+		old_broadcast="$(uci_get_state network "$ifc" broadcast)"
+		old_subnet="$(uci_get_state network "$ifc" netmask)"
+	}
+
+	[ "$ip" != "$old_ip" ] \
+	|| [ "${broadcast:-+}" != "$old_broadcast" ] \
+	|| [ "${subnet:-255.255.255.0}" != "$old_subnet" ] && {
+		echo "udhcpc: ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+}"
+		ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+}
+
+		change_state network "$ifc" ipaddr "$ip"
+		change_state network "$ifc" broadcast "${broadcast:-+}"
+		change_state network "$ifc" netmask "${subnet:-255.255.255.0}"
+	}
+
+
+	# Default Route
+	[ -n "$ifc" ] && {
+		change_state network "$ifc" lease_gateway "$router"
+		old_router="$(uci_get_state network "$ifc" gateway)"
+		user_router="$(uci_get network "$ifc" gateway)"
+		user_metric="$(uci_get network "$ifc" metric)"
+		[ -n "$user_router" ] && router="$user_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=""
+		for i in $router ; do
+			route add default gw $i ${user_metric:+metric $user_metric} dev $interface
+			valid_gw="${valid_gw:+$valid_gw|}$i"
+		done
+		
+		eval $(route -n | awk '
+			/^0.0.0.0\W{9}('$valid_gw')\W/ {next}
+			/^0.0.0.0/ {print "route del -net "$1" gw "$2";"}
+		')
+
+		change_state network "$ifc" gateway "$router"
+	}
+
+	# CIDR STATIC ROUTES (rfc3442)
+	[ -n "$staticroutes" ] && set_classless_routes $staticroutes
+	[ -n "$msstaticroutes" ] && set_classless_routes $msstaticroutes
+
+	# DNS
+	old_dns=$(uci_get_state network "$ifc" dns)
+	old_domain=$(uci_get_state network "$ifc" dnsdomain)
+	user_dns=$(uci_get "network.$ifc.dns")
+	[ -n "$user_dns" ] && dns="$user_dns"
+
+	[ -n "$dns" ] && [ "$dns" != "$old_dns" -o -n "$user_dns" ] && {
+		echo "udhcpc: setting dns servers: $dns"
+		add_dns "$ifc" $dns
+
+		[ -n "$domain" ] && [ "$domain" != "$old_domain" ] && {
+			echo "udhcpc: setting dns domain: $domain"
+			sed -i -e "${old_domain:+/^search $old_domain$/d; }/^search $domain$/d" "${RESOLV_CONF}"
+			echo "search $domain" >> "${RESOLV_CONF}"
+			change_state network "$ifc" dnsdomain "$domain"
+		}
+	}
+
+	[ -n "$ifc" ] || return
+
+	# UCI State
+	change_state network "$ifc" lease_server "$serverid"
+	change_state network "$ifc" lease_acquired "$(sed -ne 's![^0-9].*$!!p' /proc/uptime)"
+	change_state network "$ifc" lease_lifetime "$lease"
+	[ -n "$ntpsrv" ] && 	change_state network "$ifc" lease_ntpsrv "$ntpsrv"
+	[ -n "$timesvr" ] && 	change_state network "$ifc" lease_timesrv "$timesvr"
+	[ -n "$hostname" ] &&	change_state network "$ifc" lease_hostname "$hostname"
+	[ -n "$timezone" ] && 	change_state network "$ifc" lease_timezone "$timezone"
+
+
+	# Hotplug
+	env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface
+}
+
+
+scan_interfaces
+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
+			[ -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
+		;;
+		bound)
+			setup_interface ifup
+		;;
+	esac
+done
+
+# user rules
+[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
+
+exit 0