cloudstack/patches/systemvm/debian/config/opt/cloud/bin/vpc_netusage.sh

#!/usr/bin/env bash
# Copyright 2012 Citrix Systems, Inc. Licensed under the
# Apache License, Version 2.0 (the "License"); you may not use this
# file except in compliance with the License.  Citrix Systems, Inc.
# reserves all rights not expressly granted by the License.
# You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# 
# Automatically generated by addcopyright.py at 04/03/2012

source /root/func.sh
source /opt/cloud/bin/vpc_func.sh

vpnoutmark="0x525"
vpninmark="0x524"
lock="biglock"
locked=$(getLockFile $lock)
if [ "$locked" != "1" ]
then
    exit 1
fi

usage() {
  printf "Usage: %s -[c|g|r|n|d] [-l <public gateway>] [-v <vpc cidr>] \n" $(basename $0)  >&2
}

create_usage_rules () {
  iptables-save|grep "NETWORK_STATS_$ethDev" > /dev/null
  if [ $? -gt 0 ]
  then 
    iptables -N NETWORK_STATS_$ethDev > /dev/null;
    iptables -I FORWARD -j NETWORK_STATS_$ethDev > /dev/null;
    iptables -A NETWORK_STATS_$ethDev -o $ethDev -s $vcidr > /dev/null;
    iptables -A NETWORK_STATS_$ethDev -i $ethDev -d $vcidr > /dev/null;
  fi  
  return $?
}

create_vpn_usage_rules () {
  iptables-save|grep "VPN_STATS_$ethDev" > /dev/null
  if [ $? -gt 0 ]
  then 
    iptables -t mangle -N VPN_STATS_$ethDev > /dev/null;
    iptables -t mangle -I FORWARD -j VPN_STATS_$ethDev > /dev/null;
    iptables -t mangle -A VPN_STATS_$ethDev -o $ethDev -m mark --mark $vpnoutmark > /dev/null;
    iptables -t mangle -A VPN_STATS_$ethDev -i $ethDev -m mark --mark $vpninmark > /dev/null;
  fi
  return $?
}

remove_usage_rules () {
  echo $ethDev >> /root/removedVifs
  return $?
}

get_usage () {
  iptables -L NETWORK_STATS_$ethDev -n -v -x 2> /dev/null | awk '$1 ~ /^[0-9]+$/ { printf "%s:", $2}'; > /dev/null
  if [ -f /root/removedVifs ]
  then
    var=`cat /root/removedVifs`
    # loop through vifs to be cleared
    for i in $var; do
      # Make sure vif doesn't exist
      if [ ! -f /sys/class/net/$i ]
      then
        # flush rules and remove chain
        iptables -F NETWORK_STATS_$i > /dev/null;
        iptables -D FORWARD -j NETWORK_STATS_$i > /dev/null;
        iptables -X NETWORK_STATS_$i > /dev/null;
        iptables -t mangle -F VPN_STATS_$i > /dev/null;
        iptables -t mangle -D FORWARD -j VPN_STATS_$i > /dev/null;
        iptables -t mangle -X VPN_STATS_$i > /dev/null;
      fi
    done
    rm /root/removedVifs
  fi     
  return 0
}

get_vpn_usage () {
  iptables -t mangle -L VPN_STATS_$ethDev -n -v -x | awk '$1 ~ /^[0-9]+$/ { printf "%s:", $2}'; > /dev/null
  if [ $? -gt 0 ]
  then
     printf $?
     return 1
  fi
}

reset_usage () {
  iptables -Z NETWORK_STATS_$ethDev > /dev/null
  if [ $? -gt 0  -a $? -ne 2 ]
  then
     return 1
  fi
}

#set -x

cflag=
gflag=
rflag=
lflag=
vflag=
nflag=
dflag=

while getopts 'cgndrl:v:' OPTION
do
  case $OPTION in
  c)	cflag=1
	;;
  g)	gflag=1
	;;
  r)	rflag=1
	;;
  l)    lflag=1
        publicIp="$OPTARG"
        ;;
  v)    vflag=1
        vcidr="$OPTARG"
        ;;
  n)	nflag=1
	;;
  d)	dflag=1
	;;	        
  i)    #Do nothing, since it's parameter for host script
        ;;
  ?)	usage
        unlock_exit 2 $lock $locked
	;;
  esac
done

ethDev=$(getEthByIp $publicIp)
if [ "$cflag" == "1" ] 
then
  if [ "$ethDev" != "" ]
  then
    create_usage_rules
    create_vpn_usage_rules
    unlock_exit 0 $lock $locked
   fi 
fi

if [ "$gflag" == "1" ] 
then
  get_usage 
  unlock_exit $? $lock $locked
fi

if [ "$nflag" == "1" ] 
then
  get_vpn_usage 
  unlock_exit $? $lock $locked
fi

if [ "$dflag" == "1" ] 
then
  remove_usage_rules
  unlock_exit 0 $lock $locked
fi

if [ "$rflag" == "1" ] 
then
  reset_usage  
  unlock_exit $? $lock $locked
fi


unlock_exit 0 $lock $locked