#!/bin/bash
# QEMU/VDE network environment preparation script
RUN='/run/vde'
qemu=/opt/qemu/build/qemu-system-x86_64

# PID identifiers
all="$RUN/*.pid"
network="$RUN/net_*.pid"
vms="$RUN/vm_*.pid"
alpine="$RUN/vm_alpine_*.pid"
alpine1="$RUN/vm_alpine_1.pid"
alpine2="$RUN/vm_alpine_2.pid"
kali="$RUN/vm_kali.pid"


case "$1" in
start)
  sudo mkdir -p $RUN && sudo chown "$(id -un)":"$(id -gn)" $RUN
  case "$2" in
  network | all)
    echo "Starting VDE network for QEMU: "
    vde_switch -daemon -s $RUN/sw_main.sock -p $RUN/net_sw_main.pid
    vde_switch -daemon -s $RUN/sw_proxy1.sock -p $RUN/net_sw_proxy1.pid
    vde_switch -daemon -s $RUN/sw_proxy2.sock -p $RUN/net_sw_proxy2.pid
    vde_switch -daemon -s $RUN/sw_proxy3.sock -p $RUN/net_sw_proxy3.pid
    slirpvde -D -H 10.0.0.2 --daemon -s $RUN/sw_main.sock -p $RUN/net_slirp.pid
    ;;&
  alpine1 | alpine | vms | all)
    $qemu -m 512 -nic vde,mac='52:54:00:12:34:56',sock=$RUN/sw_proxy1.sock -hda alpine1.qcow2 -daemonize -vnc :1 -pidfile $RUN/vm_alpine_1.pid
    ;;&
  alpine2 | alpine | vms | all)
    $qemu -m 512 -nic vde,mac='52:54:00:12:34:66',sock=$RUN/sw_proxy2.sock -hda alpine2.qcow2 -daemonize -vnc :2 -pidfile $RUN/vm_alpine_2.pid
    ;;&
  kali | vms | all)
    $qemu -m 1024 -nic user -nic vde,mac='52:54:00:12:34:76',sock=$RUN/sw_proxy3.sock -hda kali.qcow2 -daemonize -vnc :3 -pidfile $RUN/vm_kali.pid
    ;;
  *)
    echo "Usage: envctl start {all|network|vms|alpine|alpine1|alpine2|kali}"
  esac
  #echo "Run:\nqemu -m 512 -nic vde,mac='52:54:00:12:34:56',sock=$RUN/sw_proxy.sock -hda alpine1.qcow2 -nographic"
  ;;
stop)
  if [ -n "${!2}" ]; then
    if ls ${!2} 2> /dev/null; then
      cat ${!2} | xargs kill
      rm -f ${!2}
    else
      echo "$2 is not running"
    fi
  else
    echo "Usage: envctl stop {all|network|vms|alpine|alpine1|alpine2|kali}"
  fi
  ;;
restart)
  $0 stop
  sleep 1
  $0 start
  ;;
status)
  if [ -n "${!2}" ]; then
    if ls ${!2} 2> /dev/null; then
      ps -fq "$(cat ${!2} | xargs | sed 's/ /,/g')"
    else
      echo "$2 is not running"
    fi
  else
    echo "Usage: envctl status {all|network|vms|alpine|alpine1|alpine2|kali}"
  fi
  ;;
*)
  echo "Usage: envctl {start|stop|restart} {all|network|vms|alpine|alpine1|alpine2|kali}"
  exit 1
  ;;
esac
exit 0