config/forwardfw/firewall-policy

   1 #!/bin/sh
   2
   3 ###############################################################################
   4 #                                                                             #
   5 # IPFire.org - A linux based firewall                                         #
   6 # Copyright (C) 2013 Alexander Marx <amarx@ipfire.org>                        #
   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
  23
  24 eval $(/usr/local/bin/readhash /var/ipfire/forward/settings)
  25 eval $(/usr/local/bin/readhash /var/ipfire/optionsfw/settings)
  26 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
  27
  28 iptables -F POLICYFWD
  29 iptables -F POLICYOUT
  30 iptables -F POLICYIN
  31
  32 if [ -f "/var/ipfire/red/iface" ]; then
  33         IFACE=`cat /var/ipfire/red/iface`
  34 fi
  35
  36 #FORWARDFW
  37 if [ "$POLICY" == "MODE1" ]; then
  38                 if [ "$FWPOLICY" == "REJECT" ]; then
  39                         if [ "$DROPFORWARD" == "on" ]; then
  40                                 /sbin/iptables -A POLICYFWD -m limit --limit 10/minute -j LOG --log-prefix "REJECT_FORWARD"
  41                         fi
  42                         /sbin/iptables -A POLICYFWD -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_FORWARD"
  43                 fi
  44                 if [ "$FWPOLICY" == "DROP" ]; then
  45                         if [ "$DROPFORWARD" == "on" ]; then
  46                                 /sbin/iptables -A POLICYFWD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
  47                         fi
  48                         /sbin/iptables -A POLICYFWD -j DROP -m comment --comment "DROP_FORWARD"
  49                 fi
  50 else
  51         if [  "$BLUE_DEV" ] && [ "$IFACE" ]; then
  52                 /sbin/iptables -A POLICYFWD -i blue0 ! -o $IFACE -j DROP
  53         fi
  54         /sbin/iptables -A POLICYFWD -i orange0 ! -o $IFACE -j DROP
  55         /sbin/iptables -A POLICYFWD -j ACCEPT
  56         /sbin/iptables -A POLICYFWD -m comment --comment "DROP_FORWARD" -j DROP
  57 fi
  58
  59 #OUTGOINGFW
  60 if [ "$POLICY1" == "MODE1" ]; then
  61         if [ "$FWPOLICY1" == "REJECT" ]; then
  62                 if [ "$DROPOUTGOING" == "on" ]; then
  63                         /sbin/iptables -A POLICYOUT -m limit --limit 10/minute -j LOG --log-prefix "REJECT_OUTPUT"
  64                 fi
  65                 /sbin/iptables -A POLICYOUT -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_OUTPUT"
  66         fi
  67         if [ "$FWPOLICY1" == "DROP" ]; then
  68                 if [ "$DROPOUTGOING" == "on" ]; then
  69                         /sbin/iptables -A POLICYOUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_OUTPUT"
  70                 fi
  71                         /sbin/iptables -A POLICYOUT -j DROP -m comment --comment "DROP_OUTPUT"
  72         fi
  73 else
  74         /sbin/iptables -A POLICYOUT -j ACCEPT
  75         /sbin/iptables -A POLICYOUT -m comment --comment "DROP_OUTPUT" -j DROP
  76 fi
  77 #INPUT
  78 if [ "$FWPOLICY2" == "REJECT" ]; then
  79         if [ "$DROPINPUT" == "on" ]; then
  80                 /sbin/iptables -A POLICYIN -m limit --limit 10/minute -j LOG --log-prefix "REJECT_INPUT"
  81         fi
  82         /sbin/iptables -A POLICYIN -j REJECT --reject-with icmp-host-unreachable -m comment --comment "DROP_INPUT"
  83 fi
  84 if [ "$FWPOLICY2" == "DROP" ]; then
  85         if [ "$DROPINPUT" == "on" ]; then
  86                 /sbin/iptables -A POLICYIN -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
  87         fi
  88         /sbin/iptables -A POLICYIN -j DROP -m comment --comment "DROP_INPUT"
  89 fi
  90
  91 exit 0