#!/bin/sh
# tor_qemu.sh
# 2020-01-27
#
# This script securifies anonymity and privacy.
# QEMU (http://qemu.org/) is used for virtualization.
# All outgoing traffic is forwarded through TOR (https://www.torproject.org/).
#
# TOR has to be running on host OS on port 9050.
# https://www.torproject.org/
#
# Any changes to the disk image will not be written.
# You can commit changes using QEMU console: "commit all"
#
# Settings for Mozilla Firefox on guest OS:
# about:config
# network.proxy.socks = 10.0.2.2
# network.proxy.socks_port = 9050
# network.proxy.socks_remote_dns = true
# network.proxy.type = 1
#
# The following option requires Samba 3 (QEMU 1.6.1)
# -net user,smb=/home/user/shared
set -e
GID_KVM=$(grep kvm /etc/group | cut -d: -f3)
if [ "$SNAPSHOT" = "OFF" ]; then
SNAPSHOT=''
else
SNAPSHOT='-snapshot'
fi
QEMU_IMG="$1"
# For WinXP:
#QEMU_OPTS="-machine accel=kvm -m 1024 -display sdl,gl=on -vga std -soundhw es1370 -net nic,model=ne2k_pci -net user,smb=/home/$USER/shared $2"
# For Win7:
QEMU_OPTS="-machine accel=kvm -m 1024 -display sdl,gl=on -vga std -soundhw ac97 -net nic,model=rtl8139 -net user,smb=/home/$USER/shared $2"
if [ ! -f "$QEMU_IMG" ]; then
exit 1;
fi
sudo -v
sudo /sbin/modprobe kvm
sudo /sbin/modprobe kvm_intel
sudo /usr/sbin/iptables -A OUTPUT -o lo -j ACCEPT
sudo /usr/sbin/iptables -t nat -A OUTPUT -o lo -m owner --gid-owner $GID_KVM \
-p udp --dport 53 -j DNAT --to-destination 127.0.0.1:9053
sudo /usr/sbin/iptables -A OUTPUT -m owner --gid-owner $GID_KVM -j DROP
# Check /etc/gshadow if a group password is set
sg kvm -c "qemu-system-x86_64 $QEMU_OPTS $SNAPSHOT \"$QEMU_IMG\""
sudo -v
sudo /usr/sbin/iptables -D OUTPUT -m owner --gid-owner $GID_KVM -j DROP
sudo /usr/sbin/iptables -t nat -D OUTPUT -o lo -m owner --gid-owner $GID_KVM \
-p udp --dport 53 -j DNAT --to-destination 127.0.0.1:9053
sudo /usr/sbin/iptables -D OUTPUT -o lo -j ACCEPT
sudo -k