release/src/router/nocat/libexec/iptables/uninitialize.fw

   1 #!/bin/sh
   2 ##
   3 #
   4 # initialize.fw: setup the default firewall rules
   5 #
   6 # *** NOTE ***
   7 # Copy from dualwan code to erase all rules
   8 # If you want to have local firewall rules in addition to what NoCat
   9 # provides, add them at the bottom of this file.  They will be recreated
  10 # each time gateway is restarted.
  11 #
  12 ##
  13 # The current service classes by fwmark are:
  14 #
  15 #  1: Owner
  16 #  2: Co-op
  17 #  3: Public
  18 #  4: Free
  19 #
  20 #NOTE: all NoCat Configuration items should be set in the environment before calling.
  21
  22
  23 export PATH=$FirewallPath:/tmp/sbin:/tmp/bin:/bin:/usr/bin:/sbin:/usr/sbin
  24
  25 # match rule numbers in the $1 table, chain $2
  26 rule_num() {
  27     NUM=`iptables -t $1 -L $2 -n | sed -e '1,2d' | grep -n $3 | head -n 1 | cut -d : -f 1`
  28     if [ -z "$NUM" ]; then echo "0"; else echo "$NUM"; fi
  29 }
  30
  31 #Test for RE-initialization:
  32 NOCAT_RULE_NR=`rule_num filter FORWARD 'NoCat '`
  33 if [ $NOCAT_RULE_NR -gt 0 ]; then
  34     #yes, now check if this a linksys specific re-initialization
  35     iptables -t filter -D FORWARD -j NoCat
  36     iptables -t filter -F NoCat
  37     iptables -t filter -X NoCat
  38     iptables -t filter -F NoCat_Download
  39     iptables -t filter -X NoCat_Download
  40     iptables -t filter -F NoCat_Upload
  41     iptables -t filter -X NoCat_Upload
  42     iptables -t filter -F NoCat_Ports
  43     iptables -t filter -X NoCat_Ports
  44     iptables -t filter -F NoCat_Inbound
  45     iptables -t filter -X NoCat_Inbound
  46     iptables -t nat -D PREROUTING -j NoCat_Capture
  47     iptables -t nat -F NoCat_Capture
  48     iptables -t nat -X NoCat_Capture
  49     iptables -t nat -D POSTROUTING -j NoCat_NAT
  50     iptables -t nat -F NoCat_NAT
  51     iptables -t nat -X NoCat_NAT
  52     iptables -t mangle -D PREROUTING -j NoCat
  53     iptables -t mangle -F NoCat
  54     iptables -t mangle -X NoCat
  55 fi
  56