X-Git-Url: http://git.ozo.com/?p=openwrt-10.03%2F.git;a=blobdiff_plain;f=package%2Fbase-files%2Ffiles%2Flib%2Fnetwork%2Fconfig.sh;h=12e4912c01525c4b01aac9722f42ef11fa11c4fc;hp=ccdfc38b3df867384144896dc99c7a096e7c4f18;hb=a0831304e27247651359d066dba62213daf29457;hpb=eca3f8f215588edcd202cb07c403396f10ba757f

diff --git a/package/base-files/files/lib/network/config.sh b/package/base-files/files/lib/network/config.sh
index ccdfc38b3..12e4912c0 100755
--- a/package/base-files/files/lib/network/config.sh
+++ b/package/base-files/files/lib/network/config.sh
@@ -3,6 +3,12 @@
 
 # DEBUG="echo"
 
+do_sysctl() {
+	[ -n "$2" ] && \
+		sysctl -n -e -w "$1=$2" >/dev/null || \
+		sysctl -n -e "$1"
+}
+
 find_config() {
 	local iftype device iface ifaces ifn
 	for ifn in $interfaces; do
@@ -66,6 +72,52 @@ add_vlan() {
 	return 1
 }
 
+# add dns entries if they are not in resolv.conf yet
+add_dns() {
+	local cfg="$1"; shift
+
+	remove_dns "$cfg"
+
+	# We may be called by pppd's ip-up which has a nonstandard umask set.
+	# Create an empty file here and force its permission to 0644, otherwise
+	# dnsmasq will not be able to re-read the resolv.conf.auto .
+	[ ! -f /tmp/resolv.conf.auto ] && {
+		touch /tmp/resolv.conf.auto
+		chmod 0644 /tmp/resolv.conf.auto
+	}
+
+	local dns
+	local add
+	for dns in "$@"; do
+		grep -qsF "nameserver $dns" /tmp/resolv.conf.auto || {
+			add="${add:+$add }$dns"
+			echo "nameserver $dns" >> /tmp/resolv.conf.auto
+		}
+	done
+
+	[ -n "$cfg" ] && {
+		uci_set_state network "$cfg" dns "$add"
+		uci_set_state network "$cfg" resolv_dns "$add"
+	}
+}
+
+# remove dns entries of the given iface
+remove_dns() {
+	local cfg="$1"
+
+	[ -n "$cfg" ] && {
+		[ -f /tmp/resolv.conf.auto ] && {
+			local dns=$(uci_get_state network "$cfg" resolv_dns)
+			for dns in $dns; do
+				sed -i -e "/^nameserver $dns$/d" /tmp/resolv.conf.auto
+			done
+		}
+
+		uci_revert_state network "$cfg" dns
+		uci_revert_state network "$cfg" resolv_dns
+	}
+}
+
 # sort the device list, drop duplicates
 sort_list() {
 	local arg="$*"
@@ -115,6 +167,8 @@ prepare_interface() {
 	config_get iftype "$config" type
 	case "$iftype" in
 		bridge)
+			local macaddr
+			config_get macaddr "$config" macaddr
 			[ -x /usr/sbin/brctl ] && {
 				ifconfig "br-$config" 2>/dev/null >/dev/null && {
 					local newdevs devices
@@ -124,6 +178,7 @@ prepare_interface() {
 					done
 					uci_set_state network "$config" device "$newdevs"
 					$DEBUG ifconfig "$iface" 0.0.0.0
+					$DEBUG do_sysctl "net.ipv6.conf.$iface.disable_ipv6" 1
 					$DEBUG brctl addif "br-$config" "$iface"
 					# Bridge existed already. No further processing necesary
 				} || {
@@ -131,15 +186,17 @@ prepare_interface() {
 					config_get_bool stp "$config" stp 0
 					$DEBUG brctl addbr "br-$config"
 					$DEBUG brctl setfd "br-$config" 0
-					$DEBUG ifconfig "br-$config" up
 					$DEBUG ifconfig "$iface" 0.0.0.0
+					$DEBUG do_sysctl "net.ipv6.conf.$iface.disable_ipv6" 1
 					$DEBUG brctl addif "br-$config" "$iface"
 					$DEBUG brctl stp "br-$config" $stp
+					[ -z "$macaddr" ] && macaddr="$(cat /sys/class/net/$iface/address)"
+					$DEBUG ifconfig "br-$config" hw ether $macaddr up
 					# Creating the bridge here will have triggered a hotplug event, which will
 					# result in another setup_interface() call, so we simply stop processing
 					# the current event at this point.
 				}
-				ifconfig "$iface" up 2>/dev/null >/dev/null
+				ifconfig "$iface" ${macaddr:+hw ether "${macaddr}"} up 2>/dev/null >/dev/null
 				return 1
 			}
 		;;
@@ -171,23 +228,18 @@ setup_interface_static() {
 	config_get ip6addr "$config" ip6addr
 	[ -z "$ipaddr" -o -z "$netmask" ] && [ -z "$ip6addr" ] && return 1
 
-	local gateway ip6gw dns bcast
+	local gateway ip6gw dns bcast metric
 	config_get gateway "$config" gateway
 	config_get ip6gw "$config" ip6gw
 	config_get dns "$config" dns
 	config_get bcast "$config" broadcast
+	config_get metric "$config" metric
 
 	[ -z "$ipaddr" ] || $DEBUG ifconfig "$iface" "$ipaddr" netmask "$netmask" broadcast "${bcast:-+}"
 	[ -z "$ip6addr" ] || $DEBUG ifconfig "$iface" add "$ip6addr"
-	[ -z "$gateway" ] || $DEBUG route add default gw "$gateway" dev "$iface"
-	[ -z "$ip6gw" ] || $DEBUG route -A inet6 add default gw "$ip6gw" dev "$iface"
-	[ -z "$dns" ] || {
-		for ns in $dns; do
-			grep "$ns" /tmp/resolv.conf.auto 2>/dev/null >/dev/null || {
-				echo "nameserver $ns" >> /tmp/resolv.conf.auto
-			}
-		done
-	}
+	[ -z "$gateway" ] || $DEBUG route add default gw "$gateway" ${metric:+metric $metric} dev "$iface"
+	[ -z "$ip6gw" ] || $DEBUG route -A inet6 add default gw "$ip6gw" ${metric:+metric $metric} dev "$iface"
+	[ -z "$dns" ] || add_dns "$config" $dns
 
 	config_get type "$config" TYPE
 	[ "$type" = "alias" ] && return 0
@@ -204,6 +256,25 @@ setup_interface_alias() {
 	config_get cfg "$config" interface
 	[ "$parent" == "$cfg" ] || return 0
 
+	# parent device and ifname
+	local p_device p_type
+	config_get p_device "$cfg" device
+	config_get p_type   "$cfg" type
+
+	# select alias ifname
+	local layer use_iface
+	config_get layer "$config" layer 2
+	case "$layer:$p_type" in
+		# layer 3: e.g. pppoe-wan or pptp-vpn
+		3:*)      use_iface="$iface" ;;
+
+		# layer 2 and parent is bridge: e.g. br-wan
+		2:bridge) use_iface="br-$cfg" ;;
+
+		# layer 1: e.g. eth0 or ath0
+		*)        use_iface="$p_device" ;;
+	esac
+
 	# alias counter
 	local ctr
 	config_get ctr "$parent" alias_count 0
@@ -216,14 +287,14 @@ setup_interface_alias() {
 	append list "$config"
 	config_set "$parent" aliases "$list"
 
-	iface="$iface:$ctr"
-	set_interface_ifname "$config" "$iface"
+	use_iface="$use_iface:$ctr"
+	set_interface_ifname "$config" "$use_iface"
 
 	local proto
 	config_get proto "$config" proto "static"
 	case "${proto}" in
 		static)
-			setup_interface_static "$iface" "$config"
+			setup_interface_static "$use_iface" "$config"
 		;;
 		*)
 			echo "Unsupported type '$proto' for alias config '$config'"
@@ -263,35 +334,40 @@ setup_interface() {
 	}
 	set_interface_ifname "$config" "$iface"
 
-	pidfile="/var/run/$iface.pid"
 	[ -n "$proto" ] || config_get proto "$config" proto
 	case "$proto" in
 		static)
 			setup_interface_static "$iface" "$config"
 		;;
 		dhcp)
-			# prevent udhcpc from starting more than once
-			lock "/var/lock/dhcp-$iface"
-			local pid="$(cat "$pidfile" 2>/dev/null)"
-			if [ -d "/proc/$pid" ] && grep udhcpc "/proc/${pid}/cmdline" >/dev/null 2>/dev/null; then
-				lock -u "/var/lock/dhcp-$iface"
-			else
-				local ipaddr netmask hostname proto1 clientid
-				config_get ipaddr "$config" ipaddr
-				config_get netmask "$config" netmask
-				config_get hostname "$config" hostname
-				config_get proto1 "$config" proto
-				config_get clientid "$config" clientid
-
-				[ -z "$ipaddr" ] || \
-					$DEBUG ifconfig "$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
-
-				# don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
-				local dhcpopts
-				[ ."$proto1" != ."$proto" ] && dhcpopts="-n -q"
-				$DEBUG eval udhcpc -t 0 -i "$iface" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} ${clientid:+-c $clientid} -b -p "$pidfile" ${dhcpopts:- -O rootpath -R &}
-				lock -u "/var/lock/dhcp-$iface"
-			fi
+			# kill running udhcpc instance
+			local pidfile="/var/run/dhcp-${iface}.pid"
+			service_kill udhcpc "$pidfile"
+
+			local ipaddr netmask hostname proto1 clientid vendorid broadcast
+			config_get ipaddr "$config" ipaddr
+			config_get netmask "$config" netmask
+			config_get hostname "$config" hostname
+			config_get proto1 "$config" proto
+			config_get clientid "$config" clientid
+			config_get vendorid "$config" vendorid
+			config_get_bool broadcast "$config" broadcast 0
+
+			[ -z "$ipaddr" ] || \
+				$DEBUG ifconfig "$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
+
+			# don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
+			local dhcpopts
+			[ ."$proto1" != ."$proto" ] && dhcpopts="-n -q"
+			[ "$broadcast" = 1 ] && broadcast="-O broadcast" || broadcast=
+
+			$DEBUG eval udhcpc -t 0 -i "$iface" \
+				${ipaddr:+-r $ipaddr} \
+				${hostname:+-H $hostname} \
+				${clientid:+-c $clientid} \
+				${vendorid:+-V $vendorid} \
+				-b -p "$pidfile" $broadcast \
+				${dhcpopts:- -O rootpath -R &}
 		;;
 		none)
 			setup_interface_none "$iface" "$config"
@@ -305,18 +381,23 @@ setup_interface() {
 			fi
 		;;
 	esac
-	[ "$proto" = none ] || {
-		for ifn in `ifconfig | grep "^$iface:" | awk '{print $1}'`; do
-			ifconfig "$ifn" down
-		done
-	}
+}
+
+stop_interface_dhcp() {
+	local config="$1"
+
+	local ifname
+	config_get ifname "$config" ifname
+
+	local lock="/var/lock/dhcp-${ifname}"
+	[ -f "$lock" ] && lock -u "$lock"
+
+	remove_dns "$config"
+
+	local pidfile="/var/run/dhcp-${ifname}.pid"
+	service_kill udhcpc "$pidfile"
 
-	local aliases
-	config_set "$config" aliases ""
-	config_set "$config" alias_count 0
-	config_foreach setup_interface_alias alias "$config" "$iface"
-	config_get aliases "$config" aliases
-	[ -z "$aliases" ] || uci_set_state network "$config" aliases "$aliases"
+	uci -P /var/state revert "network.$config"
 }
 
 unbridge() {
@@ -324,11 +405,12 @@ unbridge() {
 	local brdev
 
 	[ -x /usr/sbin/brctl ] || return 0
-	brctl show | grep "$dev" >/dev/null && {
+	brctl show 2>/dev/null | grep "$dev" >/dev/null && {
 		# interface is still part of a bridge, correct that
 
 		for brdev in $(brctl show | awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
 			brctl delif "$brdev" "$dev" 2>/dev/null >/dev/null
+			do_sysctl "net.ipv6.conf.$dev.disable_ipv6" 0
 		done
 	}
 }