| 1 | #! /bin/sh
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| 2 | #
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| 3 | # innotek VirtualBox
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| 4 | # Linux static host networking interface initialization
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| 5 | #
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| 6 |
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| 7 | #
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| 8 | # Copyright (C) 2007 innotek GmbH
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| 9 | #
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| 10 | # innotek GmbH confidential
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| 11 | # All rights reserved
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| 12 |
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| 13 | # chkconfig: 35 30 60
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| 14 | # description: VirtualBox permanent host networking setup
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| 15 | #
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| 16 | ### BEGIN INIT INFO
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| 17 | # Provides: vboxnet
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| 18 | # Required-Start: $network
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| 19 | # Required-Stop:
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| 20 | # Default-Start: 3 5
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| 21 | # Default-Stop:
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| 22 | # Short-Description: VirtualBox permanent host networking setup
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| 23 | ### END INIT INFO
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| 24 |
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| 25 | PATH=$PATH:/bin:/sbin:/usr/sbin
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| 26 | CONFIG="/etc/vbox/interfaces"
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| 27 | VARDIR="/var/run/VirtualBox"
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| 28 | VARFILE="/var/run/VirtualBox/vboxnet"
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| 29 | TAPDEV="/dev/net/tun"
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| 30 | NOLSB=%LSB%
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| 31 |
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| 32 | if [ -z "$NOLSB" -a -f /lib/lsb/init-functions ]; then
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| 33 | . /lib/lsb/init-functions
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| 34 | else
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| 35 | log_action_begin_msg()
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| 36 | {
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| 37 | echo -n "$@..."
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| 38 | }
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| 39 | log_action_end_msg()
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| 40 | {
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| 41 | if [ -z "${2:-}" ]; then
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| 42 | end="."
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| 43 | else
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| 44 | end=" ($2)."
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| 45 | fi
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| 46 | if [ $1 -eq 0 ]; then
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| 47 | echo "done${end}"
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| 48 | else
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| 49 | echo "failed${end}"
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| 50 | fi
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| 51 | }
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| 52 | log_success_msg()
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| 53 | {
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| 54 | echo "$@"
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| 55 | }
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| 56 | log_failure_msg()
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| 57 | {
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| 58 | echo "$@"
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| 59 | }
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| 60 | fi
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| 61 |
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| 62 | failure()
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| 63 | {
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| 64 | log_action_end_msg 1 "$1"
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| 65 | exit 0
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| 66 | }
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| 67 |
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| 68 | running()
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| 69 | {
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| 70 | test -f "$VARFILE"
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| 71 | }
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| 72 |
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| 73 | valid_ifname()
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| 74 | {
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| 75 | if expr match "$1" "vbox[0-9][0-9]*$" > /dev/null 2>&1; then
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| 76 | return 0
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| 77 | else
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| 78 | return 1
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| 79 | fi
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| 80 | }
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| 81 |
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| 82 | # Create all permanent TAP devices registered on the system, add them to a
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| 83 | # bridge if required and keep a record of proceedings in the file
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| 84 | # /var/run/VirtualBox/vboxnet. If this file already exists, assume that the
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| 85 | # script has already been started and do nothing.
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| 86 | start_network() {
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| 87 | log_action_begin_msg "Starting VirtualBox host networking"
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| 88 | # If the service is already running, return successfully.
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| 89 | if [ -f "$VARFILE" ]; then
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| 90 | log_action_end_msg 0
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| 91 | return 0
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| 92 | fi
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| 93 | # Fail if we can't create our runtime record file
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| 94 | if [ ! -d "$VARDIR" ]; then
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| 95 | if ! mkdir "$VARDIR" 2> /dev/null; then
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| 96 | failure "Cannot create $VARDIR"
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| 97 | fi
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| 98 | fi
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| 99 | if ! touch "$VARFILE" 2> /dev/null; then
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| 100 | failure "Cannot create $VARFILE"
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| 101 | fi
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| 102 | # If there is no configuration file, report success
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| 103 | if [ ! -f "$CONFIG" ]; then
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| 104 | log_action_end_msg 0
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| 105 | return 0
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| 106 | fi
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| 107 | # Fail if we can't read our configuration
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| 108 | if [ ! -r "$CONFIG" ]; then
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| 109 | failure "Cannot read $CONFIG"
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| 110 | fi
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| 111 | # Fail if we don't have tunctl
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| 112 | if ! VBoxTunctl -h 2>&1 | grep -q VBoxTunctl > /dev/null; then
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| 113 | failure "VBoxTunctl not found"
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| 114 | fi
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| 115 | # Fail if we don't have the kernel tun device
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| 116 | # Make sure that the tun module is loaded (Ubuntu 7.10 needs this)
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| 117 | modprobe tun > /dev/null 2>&1
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| 118 | if ! cat /proc/misc 2>/dev/null | grep tun > /dev/null
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| 119 | then
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| 120 | failure "Linux tun/tap subsystem not available"
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| 121 | fi
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| 122 | # Read the configuration file entries line by line and create the
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| 123 | # interfaces
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| 124 | while read line; do
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| 125 | set ""$line
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| 126 | # If the line is a comment then ignore it
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| 127 | if ((! expr match "$1" "#" > /dev/null) && (! test -z "$1")); then
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| 128 | # Check that the line is correctly formed (an interface name plus one
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| 129 | # or two non-comment entries, possibly followed by a comment).
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| 130 | if ((! expr match "$2" "#" > /dev/null) &&
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| 131 | (test -z "$4" || expr match "$4" "#" > /dev/null) &&
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| 132 | (valid_ifname "$1"))
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| 133 | then
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| 134 | # Try to create the interface
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| 135 | if VBoxTunctl -t "$1" -u "$2" > /dev/null 2>&1
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| 136 | then
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| 137 | # On SUSE Linux Enterprise Server, the interface does not
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| 138 | # appear immediately, so we loop trying to bring it up.
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| 139 | i=1
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| 140 | while [ $i -le 10 ]
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| 141 | do
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| 142 | ifconfig "$1" up 2> /dev/null
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| 143 | if ifconfig | grep "$1" > /dev/null 2>&1
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| 144 | then
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| 145 | # Add the interface to a bridge if one was specified
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| 146 | if [ ! -z "$3" ]
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| 147 | then
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| 148 | if brctl addif "$3" "$1" 2> /dev/null
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| 149 | then
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| 150 | echo "$1 $2 $3" > "$VARFILE"
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| 151 | else
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| 152 | echo "$1 $2" > "$VARFILE"
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| 153 | echo "Warning - failed to add interface $1 to the bridge $3"
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| 154 | fi
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| 155 | else
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| 156 | echo "$1 $2" > $VARFILE
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| 157 | fi
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| 158 | i=20
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| 159 | else
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| 160 | i=`expr $i + 1`
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| 161 | sleep .1
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| 162 | fi
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| 163 | done
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| 164 | if [ $i -ne 20 ]
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| 165 | then
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| 166 | echo "Warning - failed to bring up the interface $1"
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| 167 | fi
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| 168 | else
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| 169 | echo "Warning - failed to create the interface $1 for the user $2"
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| 170 | fi
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| 171 | else
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| 172 | echo
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| 173 | echo "Warning - invalid line in $CONFIG:"
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| 174 | echo " $line"
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| 175 | fi
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| 176 | fi
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| 177 | done < "$CONFIG"
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| 178 | # Set /dev/net/tun to belong to the group vboxusers if it exists and does
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| 179 | # yet belong to a group.
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| 180 | if ls -g "$TAPDEV" 2>/dev/null | grep -q root; then
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| 181 | chgrp vboxusers "$TAPDEV"
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| 182 | chmod 0660 "$TAPDEV"
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| 183 | fi
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| 184 | log_action_end_msg 0
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| 185 | return 0
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| 186 | }
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| 187 |
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| 188 | # Shut down VirtualBox host networking and remove all permanent TAP
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| 189 | # interfaces. This action will fail if some interfaces could not be removed.
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| 190 | stop_network() {
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| 191 | log_action_begin_msg "Shutting down VirtualBox host networking"
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| 192 | # If there is no runtime record file, assume that the service is not
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| 193 | # running.
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| 194 | if [ ! -f "$VARFILE" ]; then
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| 195 | log_action_end_msg 0
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| 196 | return 0
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| 197 | fi
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| 198 | # Fail if we can't read our runtime record file or write to the
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| 199 | # folder it is located in
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| 200 | if [ ! -r "$VARFILE" -o ! -w "$VARDIR" ]; then
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| 201 | failure "Failed to read $VARFILE or to write $VARDIR"
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| 202 | fi
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| 203 | # Fail if we don't have tunctl
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| 204 | if ! VBoxTunctl -h 2>&1 | grep -q VBoxTunctl > /dev/null; then
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| 205 | failure "VBoxTunctl not found"
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| 206 | fi
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| 207 | # Read the runtime record file entries line by line and delete the
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| 208 | # interfaces. The format of the runtime record file is not checked for
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| 209 | # errors.
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| 210 | while read line; do
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| 211 | set ""$line
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| 212 | # Remove the interface from a bridge if it is part of one
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| 213 | if [ ! -z "$3" ]; then
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| 214 | brctl delif "$3" "$1" 2> /dev/null
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| 215 | fi
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| 216 | # Remove the interface. Roll back everything and fail if this is not
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| 217 | # possible
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| 218 | if (! ifconfig "$1" down 2> /dev/null ||
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| 219 | ! VBoxTunctl -d "$1" > /dev/null 2>&1)
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| 220 | then
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| 221 | while read line; do
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| 222 | set ""$line
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| 223 | VBoxTunctl -t "$1" -u "$2" > /dev/null 2>&1
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| 224 | ifconfig "$1" up 2> /dev/null
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| 225 | if [ ! -z "$3" ]; then
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| 226 | brctl addif "$3" "$1"
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| 227 | fi
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| 228 | done < "$VARFILE"
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| 229 | failure "Removing of interface failed"
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| 230 | fi
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| 231 | done < "$VARFILE"
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| 232 | rm -f "$VARFILE" 2> /dev/null
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| 233 | log_action_end_msg 0
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| 234 | return 0
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| 235 | }
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| 236 |
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| 237 | # Shut down VirtualBox host networking and remove all permanent TAP
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| 238 | # interfaces. This action will succeed even if not all interfaces could be
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| 239 | # removed. It is only intended for exceptional circumstances such as
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| 240 | # uninstalling VirtualBox.
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| 241 | force_stop_network() {
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| 242 | log_action_begin_msg "Shutting down VirtualBox host networking"
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| 243 | # If there is no runtime record file, assume that the service is not
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| 244 | # running.
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| 245 | if [ ! -f "$VARFILE" ]; then
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| 246 | log_action_end_msg 0
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| 247 | return 0
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| 248 | fi
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| 249 | # Fail if we can't read our runtime record file or write to the
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| 250 | # folder it is located in
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| 251 | if [ ! -r "$VARFILE" -o ! -w "$VARDIR" ]; then
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| 252 | failure "Failed to read $VARFILE or to write $VARDIR"
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| 253 | fi
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| 254 | # Fail if we don't have tunctl
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| 255 | if ! VBoxTunctl -h 2>&1 | grep -q VBoxTunctl > /dev/null; then
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| 256 | failure "VBoxTunctl not found"
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| 257 | fi
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| 258 | # Read the runtime record file entries line by line and delete the
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| 259 | # interfaces. The format of the runtime record file is not checked for
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| 260 | # errors.
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| 261 | while read line; do
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| 262 | set ""$line
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| 263 | # Remove the interface from a bridge if it is part of one
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| 264 | if [ ! -z "$3" ]; then
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| 265 | brctl delif "$3" "$1" 2> /dev/null
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| 266 | fi
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| 267 | # Remove the interface.
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| 268 | ifconfig "$1" down 2> /dev/null
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| 269 | VBoxTunctl -d "$1" > /dev/null 2>&1
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| 270 | done < "$VARFILE"
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| 271 | rm -f "$VARFILE" 2> /dev/null
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| 272 | log_action_end_msg 0
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| 273 | return 0
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| 274 | }
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| 275 |
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| 276 | case "$1" in
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| 277 | start)
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| 278 | start_network
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| 279 | ;;
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| 280 | stop)
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| 281 | stop_network
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| 282 | ;;
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| 283 | restart|reload|force-reload)
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| 284 | stop_network
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| 285 | start_network
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| 286 | ;;
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| 287 | force-stop)
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| 288 | force_stop_network
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| 289 | ;;
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| 290 | status)
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| 291 | if running; then
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| 292 | log_success_msg "VirtualBox host networking is loaded."
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| 293 | else
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| 294 | log_failure_msg "VirtualBox host networking is not loaded."
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| 295 | fi
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| 296 | ;;
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| 297 | *)
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| 298 | echo "Usage: `basename $0` {start|stop|force-stop|restart|force-reload|status}"
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| 299 | exit 1
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| 300 | esac
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| 301 |
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| 302 | exit
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