#!/bin/sh
#
# Qemu test script for FreeNAS based on NanoBSD
#
# Copyright (c) 2009-2010, The FreeNAS Development Team
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#Uncomment for debug
#set -x
check_system () {
if ! `uname -s | grep -q FreeBSD`; then
echo "Error: This script was wrote for a FreeBSD only"
echo "You need to adapt it for other system"
exit 1
fi
if ! `pkg_info -q -E -x qemu > /dev/null 2>&1`; then
echo "Error: qemu not found"
echo "Install qemu with: pkg_add -r qemu"
exit 1
fi
if ! `pkg_info -q -E -x kqemu > /dev/null 2>&1`; then
echo "Warning: kqemu not found"
echo "kqemu is not mandatory, but improve a lot the speed"
echo "Install kqemu with: pkg_add -r kqemu"
fi
if ! kldstat -m kqemu; then
echo "Loading kqemu"
if kldload kqemu; then
echo "Can't load kqemu"
fi
fi
if ! kldstat -m aio; then
echo "Loading aio"
if kldload aio; then
echo "Can't load aio"
fi
fi
}
check_user () {
if [ ! $(whoami) = "root" ]; then
if ($SHARED_WITH_HOST); then
echo "Warning: You need to be root for creating the shared LAN interfaces with the hosts"
echo "Disable the shared LAN"
SHARED_WITH_HOST=false
fi
fi
}
check_image () {
if [ ! -f ${FILENAME} ]; then
echo "ERROR: Can't found the file ${FILENAME}"
exit 1
fi
if `file -b ${FILENAME} | grep -q "bzip2 compressed data" > /dev/null 2>&1`; then
echo "Bzipped image detected, unzip it..."
bunzip2 -k ${FILENAME}
# change FILENAME by removing the last.bz2"
FILENAME=`echo ${FILENAME} | sed -e 's/.bz2//g'`
fi
if ! `file -b ${FILENAME} | grep -q "boot sector" > /dev/null 2>&1`; then
echo "ERROR: Not a FreeNAS NanoBSD image??"
exit 1
fi
}
# Creating interfaces
create_interfaces_shared () {
if ! `ifconfig | grep -q 10.0.0.254`; then
echo "Creating bridge interface..."
BRIDGE_IF=`ifconfig bridge create`
if ! `ifconfig ${BRIDGE_IF} 10.0.0.254/24`; then
echo "Can't set IP address on ${BRIDGE_IF}"
exit 1
fi
else
# Need to check if it's a bridge interface that is allready configured with 10.0.0.254"
DETECTED_NIC=`ifconfig -l`
for NIC in $DETECTED_NIC
do
if `ifconfig $NIC | /usr/bin/grep -q 10.0.0.254`; then
if `echo $NIC | /usr/bin/grep -q bridge`; then
BRIDGE_IF="$NIC"
else
echo "ERROR: Interface $NIC is allready configured with 10.0.0.254"
echo "I cant' configure this IP on interface $BRIDGE_IF"
exit 1
fi
fi
done
fi
echo "Creating tap interface..."
TAP_IF=`ifconfig tap create`
# Link bridge with tap
ifconfig ${BRIDGE_IF} addm ${TAP_IF} up
ifconfig ${TAP_IF} up
QEMU_NIC="-net nic -net tap,ifname=${TAP_IF}"
}
# Parse filename for detecting ARCH and console
parse_filename () {
QEMU_ARCH=0
if echo "${FILENAME}" | grep -q "amd64"; then
QEMU_ARCH="qemu-system-x86_64 -m 96"
echo "filename guests a x86-64 image"
fi
if echo "${FILENAME}" | grep -q "i386"; then
QEMU_ARCH="qemu -m 96"
echo "filename guests a i386 image"
fi
if [ "$QEMU_ARCH" = "0" ]; then
echo "WARNING: Can't guests arch of this image"
echo "Use as default i386"
QEMU_ARCH="qemu"
fi
QEMU_OUTPUT=0
if echo "${FILENAME}" | grep -q "serial"; then
QEMU_OUTPUT="-nographic -vga none"
SERIAL=true
echo "filename guests a serial image"
echo "Use standard console as input/output"
echo "Guest VM configured without vga card"
fi
if echo "${FILENAME}" | grep -q "vga"; then
QEMU_OUTPUT="-vnc :0 -serial none"
SERIAL=false
echo "filename guests a vga image"
echo "start a VNC server on :0 for input/output"
echo "Guest VM configured without serial port"
fi
if [ "$QEMU_OUTPUT" = "0" ]; then
echo "WARNING: Can't suppose default console of this image"
echo "Will start a VNC server on :0 for input/output"
SERIAL=false
QEMU_OUTPUT="-vnc :0"
fi
}
# Check the presence of file hard disk, and create them if not present
disks_init () {
i=1
while [ $i -le 3 ]; do
if [ ! -f /tmp/FreeNAS-disk$i.qcow2 ]; then
echo "Generate /tmp/FreeNAS-disk$i.qcow2 hard drive image"
if ! qemu-img create -f qcow2 /tmp/FreeNAS-disk$i.qcow2 100M; then
echo "ERROR: Can't qemu-img create /tmp/FreeNAS-disk$i.qcow2"
exit 1
fi
fi
i=`expr $i + 1`
done
QEMU_DISK="-hdb /tmp/FreeNAS-disk1.qcow2 -hdc /tmp/FreeNAS-disk2.qcow2 -hdd /tmp/FreeNAS-disk3.qcow2"
}
usage () {
(
echo "Usage: $0 [-s] -i FreeNAS-full.img"
echo " -i filename FreeNAS file image path"
echo " -s Enable a shared LAN with Qemu host"
echo " -h Display this help"
echo ""
) 1>&2
exit 2
}
###############
# Main script #
###############
### Parse argument
set +e
args=`getopt i:hs $*`
if [ $? -ne 0 ] ; then
usage
exit 2
fi
set -e
set -- $args
SHARED_WITH_HOST=false
for i
do
case "$i"
in
-s)
SHARED_WITH_HOST=true
shift
;;
-h)
usage
;;
-i)
FILENAME="$2"
shift
shift
;;
--)
shift
break
esac
done
if [ "$FILENAME" = "" ]; then
usage
fi
if [ $# -gt 0 ] ; then
echo "$0: Extraneous arguments supplied"
usage
fi
echo "FreeNAS NanoBSD Qemu script"
check_system
check_user
check_image
parse_filename
QEMU_NIC="-net nic -net user"
if ($SHARED_WITH_HOST); then
create_interfaces_shared
fi
disks_init
echo "Starting qemu..."
${QEMU_ARCH} -hda ${FILENAME} ${QEMU_NIC} ${QEMU_OUTPUT} ${QEMU_DISK} -boot c -localtime \
-enable-kqemu
echo "...qemu stoped"
if ($SHARED_WITH_HOST); then
echo "Destroying shared TAP Interface..."
ifconfig ${TAP_IF} destroy
ifconfig ${BRIDGE_IF} destroy
fi
