Merge branch 'user/openvpn/1' into 'master'

user/openvpn: pull in

Imported from Alpine. This is my first attempt at porting an Alpine package!

See merge request !52

1 files changed, 82 insertions, 0 deletions

diff --git a/user/openvpn/openvpn.up b/user/openvpn/openvpn.up
new file mode 100644
index 000000000..2923bef7a
--- /dev/null
+++ b/user/openvpn/openvpn.up
@@ -0,0 +1,82 @@
+#!/bin/sh
+# Copyright (c) 2006-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# Contributed by Roy Marples (uberlord@gentoo.org)
+
+# Setup our resolv.conf
+# Vitally important that we use the domain entry in resolv.conf so we
+# can setup the nameservers are for the domain ONLY in resolvconf if
+# we're using a decent dns cache/forwarder like dnsmasq and NOT nscd/libc.
+# nscd/libc users will get the VPN nameservers before their other ones
+# and will use the first one that responds - maybe the LAN ones?
+# non resolvconf users just the the VPN resolv.conf
+
+# FIXME:- if we have >1 domain, then we have to use search :/
+# We need to add a flag to resolvconf to say
+# "these nameservers should only be used for the listed search domains
+#  if other global nameservers are present on other interfaces"
+# This however, will break compatibility with Debians resolvconf
+# A possible workaround would be to just list multiple domain lines
+# and try and let resolvconf handle it
+
+if [ "${PEER_DNS}" != "no" ]; then
+	NS=
+	DOMAIN=
+	SEARCH=
+	i=1
+	while true ; do
+		eval opt=\$foreign_option_${i}
+		[ -z "${opt}" ] && break
+		if [ "${opt}" != "${opt#dhcp-option DOMAIN *}" ] ; then
+			if [ -z "${DOMAIN}" ] ; then
+				DOMAIN="${opt#dhcp-option DOMAIN *}"
+			else
+				SEARCH="${SEARCH}${SEARCH:+ }${opt#dhcp-option DOMAIN *}"
+			fi
+		elif [ "${opt}" != "${opt#dhcp-option DNS *}" ] ; then
+			NS="${NS}nameserver ${opt#dhcp-option DNS *}\n"
+		fi
+		i=$((${i} + 1))
+	done
+
+	if [ -n "${NS}" ] ; then
+		DNS="# Generated by openvpn for interface ${dev}\n"
+		if [ -n "${SEARCH}" ] ; then
+			DNS="${DNS}search ${DOMAIN} ${SEARCH}\n"
+		elif [ -n "${DOMAIN}" ]; then
+			DNS="${DNS}domain ${DOMAIN}\n"
+		fi
+		DNS="${DNS}${NS}"
+		if [ -x /sbin/resolvconf ] ; then
+			printf "${DNS}" | /sbin/resolvconf -a "${dev}"
+		else
+			# Preserve the existing resolv.conf
+			if [ -e /etc/resolv.conf ] ; then
+				cp /etc/resolv.conf /etc/resolv.conf-"${dev}".sv
+			fi
+			printf "${DNS}" > /etc/resolv.conf
+			chmod 644 /etc/resolv.conf
+		fi
+	fi
+fi
+
+# Below section is Gentoo specific
+# Quick summary - our init scripts are re-entrant and set the RC_SVCNAME env var
+# as we could have >1 openvpn service
+
+if [ -n "${RC_SVCNAME}" ]; then
+	# If we have a service specific script, run this now
+	if [ -x /etc/openvpn/"${RC_SVCNAME}"-up.sh ] ; then
+		/etc/openvpn/"${RC_SVCNAME}"-up.sh "$@"
+	fi
+
+	# Re-enter the init script to start any dependant services
+	if ! /etc/init.d/"${RC_SVCNAME}" --quiet status ; then
+		export IN_BACKGROUND=true
+		/etc/init.d/${RC_SVCNAME} --quiet start
+	fi
+fi
+
+exit 0
+
+# vim: ts=4 :