--- Makefile
+++ Makefile
@@ -4,7 +4,7 @@
 
 include Makefile.inc
 
-SUBDIR =	doc init.d net sh
+SUBDIR =	doc init.d net sh udev_helper udev_rules
 
 INSTALLAFTER=	_installafter
 
--- mk/os-Linux.mk
+++ mk/os-Linux.mk
@@ -3,6 +3,7 @@
 
 SFX=		.Linux.in
 PKG_PREFIX?=	/usr
+UDEVDIR?=	$(shell pkg-config udev --variable=udevdir)
 
 CPPFLAGS+=	-D_BSD_SOURCE -D_XOPEN_SOURCE=700
 LIBDL=		-Wl,-Bdynamic -ldl
--- udev_helper/Makefile
+++ udev_helper/Makefile
@@ -0,0 +1,11 @@
+DIR=		${UDEVDIR}
+SRCS=		${SRCS-${OS}}
+BIN=		${BIN-${OS}}
+
+MK=	../mk
+include ${MK}/os.mk
+
+SRCS-Linux=	net.sh
+BIN-Linux=	net.sh
+
+include ${MK}/scripts.mk
--- udev_helper/net.sh
+++ udev_helper/net.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+#
+# net.sh: udev external RUN script
+#
+# Copyright 2007 Roy Marples <uberlord@gentoo.org>
+# Distributed under the terms of the GNU General Public License v2
+
+IFACE=$1
+ACTION=$2
+
+SCRIPT=/etc/init.d/net.$IFACE
+
+# ignore interfaces that are registered after being "up" (?)
+case ${IFACE} in
+	ppp*|ippp*|isdn*|plip*|lo*|irda*|dummy*|ipsec*|tun*|tap*|br*)
+		exit 0 ;;
+esac
+
+# stop here if coldplug is disabled, Bug #206518
+if [ "${do_not_run_plug_service}" = 1 ]; then
+	exit 0
+fi
+
+if [ ! -x "${SCRIPT}" ] ; then
+	#do not flood log with messages, bug #205687
+	#logger -t udev-net.sh "${SCRIPT}: does not exist or is not executable"
+	exit 1
+fi
+
+# If we're stopping then sleep for a bit in-case a daemon is monitoring
+# the interface. This to try and ensure we stop after they do.
+[ "${ACTION}" == "stop" ] && sleep 2
+
+IN_HOTPLUG=1 "${SCRIPT}" --quiet "${ACTION}"
--- udev_rules/90-network.rules
+++ udev_rules/90-network.rules
@@ -0,0 +1,8 @@
+# do not edit this file, it will be overwritten on update
+
+# /etc/udev/rules/90-network.rules:  triggering network init-scripts
+
+# Activate our network if we can
+SUBSYSTEM=="net", ACTION=="add",    RUN+="net.sh %k start"
+SUBSYSTEM=="net", ACTION=="remove", RUN+="net.sh %k stop"
+
--- udev_rules/Makefile
+++ udev_rules/Makefile
@@ -0,0 +1,11 @@
+DIR=		${UDEVDIR}/rules.d
+SRCS=		${SRCS-${OS}}
+INC=		${INC-${OS}}
+
+MK=	../mk
+include ${MK}/os.mk
+
+SRCS-Linux=	90-network.rules
+INC-Linux=	90-network.rules
+
+include ${MK}/scripts.mk