config/forwardfw/firewall-policy

   1 #!/bin/sh
   2
   3 ###############################################################################
   4 #                                                                             #
   5 # IPFire.org - A linux based firewall                                         #
   6 # Copyright (C) 2013                                                          #
   7 #                                                                             #
   8 # This program is free software: you can redistribute it and/or modify        #
   9 # it under the terms of the GNU General Public License as published by        #
  10 # the Free Software Foundation, either version 3 of the License, or           #
  11 # (at your option) any later version.                                         #
  12 #                                                                             #
  13 # This program is distributed in the hope that it will be useful,             #
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  16 # GNU General Public License for more details.                                #
  17 #                                                                             #
  18 # You should have received a copy of the GNU General Public License           #
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  20 #                                                                             #
  21 ###############################################################################
  22 # Author: Alexander Marx (amarx@ipfire.org)                                   #
  23 ###############################################################################
  24
  25
  26 eval $(/usr/local/bin/readhash /var/ipfire/forward/settings)
  27 eval $(/usr/local/bin/readhash /var/ipfire/optionsfw/settings)
  28 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
  29
  30 iptables -F POLICYFWD
  31 iptables -F POLICYOUT
  32 iptables -F POLICYIN
  33
  34 if [ -f "/var/ipfire/red/iface" ]; then
  35         IFACE=`cat /var/ipfire/red/iface`
  36 fi
  37
  38 #FORWARDFW
  39 if [ "$POLICY" == "MODE1" ]; then
  40                 if [ "$FWPOLICY" == "REJECT" ]; then
  41                         if [ "$DROPFORWARD" == "on" ]; then
  42                                 /sbin/iptables -A POLICYFWD -m limit --limit 10/minute -j LOG --log-prefix "REJECT_FORWARD"
  43                         fi
  44                         /sbin/iptables -A POLICYFWD -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_FORWARD"
  45                 fi
  46                 if [ "$FWPOLICY" == "DROP" ]; then
  47                         if [ "$DROPFORWARD" == "on" ]; then
  48                                 /sbin/iptables -A POLICYFWD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
  49                         fi
  50                         /sbin/iptables -A POLICYFWD -j DROP -m comment --comment "DROP_FORWARD"
  51                 fi
  52 else
  53         if [  "$BLUE_DEV" ] && [ "$IFACE" ]; then
  54                 /sbin/iptables -A POLICYFWD -i blue0 ! -o $IFACE -j DROP
  55         fi
  56         /sbin/iptables -A POLICYFWD -i orange0 ! -o $IFACE -j DROP
  57         /sbin/iptables -A POLICYFWD -j ACCEPT
  58         /sbin/iptables -A POLICYFWD -m comment --comment "DROP_FORWARD" -j DROP
  59 fi
  60
  61 #OUTGOINGFW
  62 if [ "$POLICY1" == "MODE1" ]; then
  63         if [ "$FWPOLICY1" == "REJECT" ]; then
  64                 if [ "$DROPOUTGOING" == "on" ]; then
  65                         /sbin/iptables -A POLICYOUT -m limit --limit 10/minute -j LOG --log-prefix "REJECT_OUTPUT"
  66                 fi
  67                 /sbin/iptables -A POLICYOUT -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_OUTPUT"
  68         fi
  69         if [ "$FWPOLICY1" == "DROP" ]; then
  70                 if [ "$DROPOUTGOING" == "on" ]; then
  71                         /sbin/iptables -A POLICYOUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_OUTPUT"
  72                 fi
  73                         /sbin/iptables -A POLICYOUT -j DROP -m comment --comment "DROP_OUTPUT"
  74         fi
  75 else
  76         /sbin/iptables -A POLICYOUT -j ACCEPT
  77         /sbin/iptables -A POLICYOUT -m comment --comment "DROP_OUTPUT" -j DROP
  78 fi
  79 #INPUT
  80 if [ "$FWPOLICY2" == "REJECT" ]; then
  81         if [ "$DROPINPUT" == "on" ]; then
  82                 /sbin/iptables -A POLICYIN -m limit --limit 10/minute -j LOG --log-prefix "REJECT_INPUT"
  83         fi
  84         /sbin/iptables -A POLICYIN -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_INPUT"
  85 fi
  86 if [ "$FWPOLICY2" == "DROP" ]; then
  87         if [ "$DROPINPUT" == "on" ]; then
  88                 /sbin/iptables -A POLICYIN -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
  89         fi
  90         /sbin/iptables -A POLICYIN -j DROP -m comment --comment "DROP_INPUT"
  91 fi
  92
  93 exit 0