hak5
/
openwrt
mirror of https://github.com/hak5/openwrt.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

make S45firewall execute scripts in /etc/firewall.d 

SVN-Revision: 496
lede-17.01
Felix Fietkau 2005-03-31 23:17:31 +00:00
parent 45b6ff6c9e
commit c5cf12295e
1 changed files with 17 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
openwrt/target/default/target_skeleton/etc/init.d/S45firewall
View File

@ -1,23 +1,33 @@
#!/bin/sh #!/bin/sh
. /etc/functions.sh . /etc/functions.sh
WAN=$(nvram get wan_ifname) export WAN=$(nvram get wan_ifname)
export IPT=/usr/sbin/iptables
IPT=/usr/sbin/iptables
for T in filter nat mangle ; do for T in filter nat mangle ; do
$IPT -t $T -F $IPT -t $T -F
$IPT -t $T -X $IPT -t $T -X
done done
# initial rules
$IPT -t filter -A INPUT -m state --state INVALID -j DROP $IPT -t filter -A INPUT -m state --state INVALID -j DROP
$IPT -t filter -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT $IPT -t filter -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
$IPT -t filter -A INPUT -p icmp -j ACCEPT
$IPT -t filter -A INPUT -p 47 -j ACCEPT # allow GRE
$IPT -t filter -A INPUT -i $WAN -p tcp -j REJECT --reject-with tcp-reset
$IPT -t filter -A INPUT -i $WAN -j REJECT --reject-with icmp-port-unreachable
$IPT -t filter -A FORWARD -m state --state INVALID -j DROP $IPT -t filter -A FORWARD -m state --state INVALID -j DROP
$IPT -t filter -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT $IPT -t filter -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
if [ -d /etc/firewall.d ]; then
for fw in /etc/firewall.d/??*; do
[ -x $fw ] && $fw
done
fi
# defaults
$IPT -t filter -A INPUT -p icmp -j ACCEPT
$IPT -t filter -A INPUT -p 47 -j ACCEPT
$IPT -t filter -A INPUT -i $WAN -p tcp -j REJECT --reject-with tcp-reset
$IPT -t filter -A INPUT -i $WAN -j REJECT --reject-with icmp-port-unreachable
$IPT -t filter -A FORWARD -i $WAN -m state --state NEW,INVALID -j DROP $IPT -t filter -A FORWARD -i $WAN -m state --state NEW,INVALID -j DROP
$IPT -t filter -A FORWARD -o $WAN -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu $IPT -t filter -A FORWARD -o $WAN -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu