From ccf238f852fd0463e68d33b91f0dd55000c325e3 Mon Sep 17 00:00:00 2001
From: Roy Marples <roy@marples.name>
Date: Wed, 26 Mar 2008 14:18:01 +0000
Subject: Merge net.OS into net

---
 net/tuntap.sh | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 net/tuntap.sh

(limited to 'net/tuntap.sh')

diff --git a/net/tuntap.sh b/net/tuntap.sh
new file mode 100644
index 00000000..3174d812
--- /dev/null
+++ b/net/tuntap.sh
@@ -0,0 +1,83 @@
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+tuntap_depend()
+{
+	before bridge interface macchanger
+}
+
+_config_vars="$_config_vars tunctl"
+
+_is_tuntap()
+{
+	[ -n "$(export RC_SVCNAME="net.${IFACE}"; service_get_value tuntap)" ]
+}
+
+tuntap_pre_start()
+{
+	local tuntap=
+	eval tuntap=\$tuntap_${IFVAR}
+
+	[ -z "${tuntap}" ] && return 0
+
+	if [ ! -e /dev/net/tun ]; then
+		if ! modprobe tun; then
+			eerror "TUN/TAP support is not present in this kernel"
+			return 1
+		fi
+		vebegin "Waiting for /dev/net/tun"
+		# /dev/net/tun can take it's time to appear
+		local timeout=10
+		while [ ! -e /dev/net/tun -a ${timeout} -gt 0 ]; do
+			sleep 1
+			timeout=$((${timeout} - 1))
+		done
+		if [ ! -e /dev/net/tun ]; then
+			eerror "TUN/TAP support present but /dev/net/tun is not"
+			return 1
+		fi
+		veend 0
+	fi
+
+	ebegin "Creating Tun/Tap interface ${IFACE}"
+
+	# Set the base metric to 1000
+	metric=1000
+
+	local o_opts= t_opts= do_openvpn=false do_tunctl=false
+	eval o_opts=\$openvpn_${IFVAR}
+	eval t_opts=\$tunctl_${IFVAR}
+
+	if [ -n "${o_opts}" ] && type openvpn >/dev/null 2>&1; then
+		do_openvpn=true
+	elif [ -n "${t_opts}" ] && type tunctl >/dev/null 2>&1; then
+		do_tunctl=true
+	elif type openvpn >/dev/null 2>&1; then
+		do_openvpn=true
+	else
+		do_tunctl=true
+	fi
+
+	if ${do_openvpn}; then
+		openvpn --mktun --dev-type "${tuntap}" --dev "${IFACE}" \
+			${o_opts} >/dev/null
+	else
+		tunctl ${t_opts} -t "${IFACE}" >/dev/null
+	fi
+	eend $? && _up && service_set_value tuntap "${tuntap}"
+}
+
+tuntap_post_stop()
+{
+	_is_tuntap || return 0
+
+	ebegin "Destroying Tun/Tap interface ${IFACE}"
+	if type tunctl >/dev/null 2>&1; then
+		tunctl -d "${IFACE}" >/dev/null
+	else
+		openvpn --rmtun \
+			--dev-type "$(service_get_value tuntap)" \
+			--dev "${IFACE}" >/dev/null
+	fi
+	eend $?
+}
-- 
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