#! /bin/sh
#
# innotek VirtualBox
# Linux static host networking interface initialization
#
#
# Copyright (C) 2007 innotek GmbH
#
# innotek GmbH confidential
# All rights reserved
# chkconfig: 35 30 60
# description: VirtualBox permanent host networking setup
#
### BEGIN INIT INFO
# Provides: vboxnet
# Required-Start: $network
# Required-Stop:
# Default-Start: 3 5
# Default-Stop:
# Short-Description: VirtualBox permanent host networking setup
### END INIT INFO
PATH=$PATH:/bin:/sbin:/usr/sbin
CONFIG="/etc/vbox/interfaces"
VARDIR="/var/run/VirtualBox"
VARFILE="/var/run/VirtualBox/vboxnet"
TAPDEV="/dev/net/tun"
NOLSB=%LSB%
if [ -z "$NOLSB" -a -f /lib/lsb/init-functions ]; then
. /lib/lsb/init-functions
else
log_action_begin_msg()
{
echo -n "$@..."
}
log_action_end_msg()
{
if [ -z "${2:-}" ]; then
end="."
else
end=" ($2)."
fi
if [ $1 -eq 0 ]; then
echo "done${end}"
else
echo "failed${end}"
fi
}
log_success_msg()
{
echo "$@"
}
log_failure_msg()
{
echo "$@"
}
fi
failure()
{
log_action_end_msg 1 "$1"
exit 0
}
running()
{
test -f "$VARFILE"
}
# Create all permanent TAP devices registered on the system, add them to a
# bridge if required and keep a record of proceedings in the file
# /var/run/VirtualBox/vboxnet. If this file already exists, assume that the
# script has already been started and do nothing.
start_network() {
log_action_begin_msg "Starting VirtualBox host networking"
# If the service is already running, return successfully.
if [ -f "$VARFILE" ]; then
log_action_end_msg 0
return 0
fi
# Fail if we can't create our runtime record file
if [ ! -d "$VARDIR" ]; then
if ! mkdir "$VARDIR" 2> /dev/null; then
failure "Cannot create $VARDIR"
fi
fi
if ! touch "$VARFILE" 2> /dev/null; then
failure "Cannot create $VARFILE"
fi
# If there is no configuration file, report success
if [ ! -f "$CONFIG" ]; then
log_action_end_msg 0
return 0
fi
# Fail if we can't read our configuration
if [ ! -r "$CONFIG" ]; then
failure "Cannot read $CONFIG"
fi
# Fail if we don't have tunctl
if ! VBoxTunctl -h 2>&1 | grep -q VBoxTunctl > /dev/null; then
failure "VBoxTunctl not found"
fi
# Fail if we don't have the kernel tun device
# Make sure that the tun module is loaded (Ubuntu 7.10 needs this)
modprobe tun > /dev/null 2>&1
if ! cat /proc/misc 2>/dev/null | grep tun > /dev/null
then
failure "Linux tun/tap subsystem not available"
fi
# Read the configuration file entries line by line and create the
# interfaces
while read line; do
set ""$line
# If the line is a comment then ignore it
if ((! expr match "$1" "#" > /dev/null) && (! test -z "$1")); then
# Check that the line is correctly formed (an interface name plus one
# or two non-comment entries, possibly followed by a comment).
if ((! expr match "$2" "#" > /dev/null) &&
(test -z "$4" || expr match "$4" "#" > /dev/null))
then
case $user in
+*)
group=`echo $2 | cut -c2-`
cmd="VBoxTunctl -t $1 -g $group"
;;
*)
cmd="VBoxTunctl -t $1 -u $2"
;;
esac
# Try to create the interface
if $cmd > /dev/null 2>&1
then
# On SUSE Linux Enterprise Server, the interface does not
# appear immediately, so we loop trying to bring it up.
i=1
while [ $i -le 10 ]
do
ifconfig "$1" up 2> /dev/null
if ifconfig | grep "$1" > /dev/null 2>&1
then
# Add the interface to a bridge if one was specified
if [ ! -z "$3" ]
then
if brctl addif "$3" "$1" 2> /dev/null
then
echo "$1 $2 $3" > "$VARFILE"
else
echo "$1 $2" > "$VARFILE"
echo "Warning - failed to add interface $1 to the bridge $3"
fi
else
echo "$1 $2" > $VARFILE
fi
i=20
else
i=`expr $i + 1`
sleep .1
fi
done
if [ $i -ne 20 ]
then
echo "Warning - failed to bring up the interface $1"
fi
else
echo "Warning - failed to create the interface $1 for the user $2"
fi
else
echo
echo "Warning - invalid line in $CONFIG:"
echo " $line"
fi
fi
done < "$CONFIG"
# Set /dev/net/tun to belong to the group vboxusers if it exists and does
# yet belong to a group.
if ls -g "$TAPDEV" 2>/dev/null | grep -q root; then
chgrp vboxusers "$TAPDEV"
chmod 0660 "$TAPDEV"
fi
log_action_end_msg 0
return 0
}
# Shut down VirtualBox host networking and remove all permanent TAP
# interfaces. This action will fail if some interfaces could not be removed.
stop_network() {
log_action_begin_msg "Shutting down VirtualBox host networking"
# If there is no runtime record file, assume that the service is not
# running.
if [ ! -f "$VARFILE" ]; then
log_action_end_msg 0
return 0
fi
# Fail if we can't read our runtime record file or write to the
# folder it is located in
if [ ! -r "$VARFILE" -o ! -w "$VARDIR" ]; then
failure "Failed to read $VARFILE or to write $VARDIR"
fi
# Fail if we don't have tunctl
if ! VBoxTunctl -h 2>&1 | grep -q VBoxTunctl > /dev/null; then
failure "VBoxTunctl not found"
fi
# Read the runtime record file entries line by line and delete the
# interfaces. The format of the runtime record file is not checked for
# errors.
while read line; do
set ""$line
# Remove the interface from a bridge if it is part of one
if [ ! -z "$3" ]; then
brctl delif "$3" "$1" 2> /dev/null
fi
# Remove the interface. Roll back everything and fail if this is not
# possible
if (! ifconfig "$1" down 2> /dev/null ||
! VBoxTunctl -d "$1" > /dev/null 2>&1)
then
while read line; do
set ""$line
VBoxTunctl -t "$1" -u "$2" > /dev/null 2>&1
ifconfig "$1" up 2> /dev/null
if [ ! -z "$3" ]; then
brctl addif "$3" "$1"
fi
done < "$VARFILE"
failure "Removing of interface failed"
fi
done < "$VARFILE"
rm -f "$VARFILE" 2> /dev/null
log_action_end_msg 0
return 0
}
# Shut down VirtualBox host networking and remove all permanent TAP
# interfaces. This action will succeed even if not all interfaces could be
# removed. It is only intended for exceptional circumstances such as
# uninstalling VirtualBox.
force_stop_network() {
log_action_begin_msg "Shutting down VirtualBox host networking"
# If there is no runtime record file, assume that the service is not
# running.
if [ ! -f "$VARFILE" ]; then
log_action_end_msg 0
return 0
fi
# Fail if we can't read our runtime record file or write to the
# folder it is located in
if [ ! -r "$VARFILE" -o ! -w "$VARDIR" ]; then
failure "Failed to read $VARFILE or to write $VARDIR"
fi
# Fail if we don't have tunctl
if ! VBoxTunctl -h 2>&1 | grep -q VBoxTunctl > /dev/null; then
failure "VBoxTunctl not found"
fi
# Read the runtime record file entries line by line and delete the
# interfaces. The format of the runtime record file is not checked for
# errors.
while read line; do
set ""$line
# Remove the interface from a bridge if it is part of one
if [ ! -z "$3" ]; then
brctl delif "$3" "$1" 2> /dev/null
fi
# Remove the interface.
ifconfig "$1" down 2> /dev/null
VBoxTunctl -d "$1" > /dev/null 2>&1
done < "$VARFILE"
rm -f "$VARFILE" 2> /dev/null
log_action_end_msg 0
return 0
}
case "$1" in
start)
start_network
;;
stop)
stop_network
;;
restart|reload|force-reload)
stop_network
start_network
;;
force-stop)
force_stop_network
;;
status)
if running; then
log_success_msg "VirtualBox host networking is loaded."
else
log_failure_msg "VirtualBox host networking is not loaded."
fi
;;
*)
echo "Usage: `basename $0` {start|stop|force-stop|restart|force-reload|status}"
exit 1
esac
exit