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#!/bin/sh
# set -x
set -e
# We play with the following networks:
# inet: 10.255.255.0/24
# 10.255.255.0-31 in ip1
# 10.255.255.32-63 in ip2
# rest in ipport
# inet6: 1002:1002:1002:1002::/64
# 1002:1002:1002:1002::1 in ip1
# 1002:1002:1002:1002::32 in ip2
# rest in ipport
case "$1" in
inet)
cmd=iptables
family=
NET=10.255.255.0/24
IP1=10.255.255.1
IP2=10.255.255.32
;;
inet6)
cmd=ip6tables
family="family inet6"
NET=1002:1002:1002:1002::/64
IP1=1002:1002:1002:1002::1
IP2=1002:1002:1002:1002::32
;;
*)
echo "Usage: $0 inet|inet6 start|stop"
exit 1
;;
esac
case "$2" in
start)
../src/ipset n ip1 hash:ip $family 2>/dev/null
../src/ipset a ip1 $IP1 2>/dev/null
../src/ipset n ip2 hash:ip $family 2>/dev/null
../src/ipset a ip2 $IP2 2>/dev/null
../src/ipset n ipport hash:ip,port $family 2>/dev/null
../src/ipset n list list:set 2>/dev/null
../src/ipset a list ipport 2>/dev/null
../src/ipset a list ip1 2>/dev/null
$cmd -A INPUT ! -s $NET -j ACCEPT
$cmd -A INPUT -m set ! --match-set ip1 src \
-m set ! --match-set ip2 src \
-j SET --add-set ipport src,src
$cmd -A INPUT -m set --match-set ip1 src \
-j LOG --log-prefix "in set ip1: "
$cmd -A INPUT -m set --match-set ip2 src \
-j LOG --log-prefix "in set ip2: "
$cmd -A INPUT -m set --match-set ipport src,src \
-j LOG --log-prefix "in set ipport: "
$cmd -A INPUT -m set --match-set list src,src \
-j LOG --log-prefix "in set list: "
$cmd -A OUTPUT -d $NET -j DROP
cat /dev/null > .foo.err
;;
del)
$cmd -F INPUT
$cmd -A INPUT -j SET --del-set ipport src,src
;;
stop)
$cmd -F
$cmd -X
../src/ipset -F 2>/dev/null
../src/ipset -X 2>/dev/null
;;
*)
echo "Usage: $0 start|stop"
exit 1
;;
esac
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