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#!/bin/bash
# License: GPL
# Author: Steven Shiau <steven _at_ clonezilla org>
# Description: Program to add a virtual network device.
# Load DRBL setting and functions
# Setting
# Source function library.
[ -f /etc/rc.d/init.d/functions ] && . /etc/rc.d/init.d/functions
# Load DRBL setting and functions
DRBL_SCRIPT_PATH="${DRBL_SCRIPT_PATH:-/usr/share/drbl}"
. $DRBL_SCRIPT_PATH/sbin/drbl-conf-functions
#
USAGE() {
echo "$ocs - To add a virtual network interface"
echo "Usage:"
echo "To run $ocs:"
echo "$ocs NET_INTERFACE VIR_NET_INTERFACE"
echo "NET_INTERFACE is the existing physical network device which the virtual network device will be bound to"
echo "VIR_NET_INTERFACE is the virtual network device name"
echo "Ex:"
echo "To add a virtual network device drbl0 on existing network card \"eth1\", run:"
echo " $ocs eth1 drbl0"
echo
} # end of USAGE
####################
### Main program ###
####################
ocs_file="$0"
ocs=`basename $ocs_file`
#
while [ $# -gt 0 ]; do
case "$1" in
-*) echo "${0}: ${1}: invalid option" >&2
USAGE >& 2
exit 2 ;;
*) break ;;
esac
done
phy_ethdev="$1"
vir_netdev="$2"
#
if [ -z "$phy_ethdev" -o -z "$vir_netdev" ]; then
USAGE
exit 1
fi
random_MAC="$(LC_ALL=C echo -n 02; od -t x1 -An -N 5 /dev/urandom | tr ' ' ':')"
if [ -n "$random_MAC" ]; then
ip link add link $phy_ethdev name $vir_netdev address $random_MAC type macvlan mode bridge
ip link set $phy_ethdev promisc on
ip link set $vir_netdev up
fi
if [ -e "/sys/class/net/$vir_netdev" ]; then
[ "$BOOTUP" = "color" ] && $SETCOLOR_SUCCESS
echo "This virtual network device was created successfully: $vir_netdev"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
ip addr show $vir_netdev
exit 0
else
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "Failed to create virtual network device: $vir_netdev!"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
echo "$msg_program_stop!"
my_ocs_exit 1
fi
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