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Additional mesh ipv6 firewall configuration

This commit is contained in:
Bob Mottram 2018-01-14 12:36:04 +00:00
parent 8ddf551bc7
commit 94d1fb3963
1 changed files with 14 additions and 0 deletions
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14
src/freedombone-utils-firewall
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@ -350,28 +350,42 @@ function mesh_firewall {
echo 'iptables -P INPUT DROP' >> $MESH_FIREWALL_SCRIPT
echo 'ip6tables -P INPUT DROP' >> $MESH_FIREWALL_SCRIPT
echo 'iptables -A INPUT -i lo -j ACCEPT' >> $MESH_FIREWALL_SCRIPT
echo 'ip6tables -A INPUT -i lo -j ACCEPT' >> $MESH_FIREWALL_SCRIPT
echo 'iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT' >> $MESH_FIREWALL_SCRIPT
echo 'ip6tables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT' >> $MESH_FIREWALL_SCRIPT
echo '' >> $MESH_FIREWALL_SCRIPT
echo '# Make sure incoming tcp connections are SYN packets' >> $MESH_FIREWALL_SCRIPT
echo 'iptables -A INPUT -p tcp ! --syn -m state --state NEW -j DROP' >> $MESH_FIREWALL_SCRIPT
echo 'ip6tables -A INPUT -p tcp ! --syn -m state --state NEW -j DROP' >> $MESH_FIREWALL_SCRIPT
echo '' >> $MESH_FIREWALL_SCRIPT
echo '# Drop packets with incoming fragments' >> $MESH_FIREWALL_SCRIPT
echo 'iptables -A INPUT -f -j DROP' >> $MESH_FIREWALL_SCRIPT
echo 'ip6tables -A INPUT -f -j DROP' >> $MESH_FIREWALL_SCRIPT
echo '' >> $MESH_FIREWALL_SCRIPT
echo '# Drop bogons' >> $MESH_FIREWALL_SCRIPT
echo 'iptables -A INPUT -p tcp --tcp-flags ALL ALL -j DROP' >> $MESH_FIREWALL_SCRIPT
echo 'ip6tables -A INPUT -p tcp --tcp-flags ALL ALL -j DROP' >> $MESH_FIREWALL_SCRIPT
echo 'iptables -A INPUT -p tcp --tcp-flags ALL FIN,PSH,URG -j DROP' >> $MESH_FIREWALL_SCRIPT
echo 'ip6tables -A INPUT -p tcp --tcp-flags ALL FIN,PSH,URG -j DROP' >> $MESH_FIREWALL_SCRIPT
echo 'iptables -A INPUT -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP' >> $MESH_FIREWALL_SCRIPT
echo 'ip6tables -A INPUT -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP' >> $MESH_FIREWALL_SCRIPT
echo '' >> $MESH_FIREWALL_SCRIPT
echo '# Incoming malformed NULL packets:' >> $MESH_FIREWALL_SCRIPT
echo 'iptables -A INPUT -p tcp --tcp-flags ALL NONE -j DROP' >> $MESH_FIREWALL_SCRIPT
echo 'ip6tables -A INPUT -p tcp --tcp-flags ALL NONE -j DROP' >> $MESH_FIREWALL_SCRIPT
echo '' >> $MESH_FIREWALL_SCRIPT
echo "iptables -A INPUT -p tcp --dport $TOX_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "ip6tables -A INPUT -p tcp --dport $TOX_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport $ZERONET_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "ip6tables -A INPUT -i $WIFI_INTERFACE -p udp --dport $ZERONET_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "iptables -A INPUT -i $WIFI_INTERFACE -p tcp --dport $ZERONET_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "ip6tables -A INPUT -i $WIFI_INTERFACE -p tcp --dport $ZERONET_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport $TRACKER_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "ip6tables -A INPUT -i $WIFI_INTERFACE -p udp --dport $TRACKER_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "iptables -A INPUT -i $WIFI_INTERFACE -p tcp --dport $TRACKER_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "ip6tables -A INPUT -i $WIFI_INTERFACE -p tcp --dport $TRACKER_PORT -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport 1900 -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
echo "ip6tables -A INPUT -i $WIFI_INTERFACE -p udp --dport 1900 -j ACCEPT" >> $MESH_FIREWALL_SCRIPT
chmod +x $MESH_FIREWALL_SCRIPT
echo '[Unit]' > $FIREWALL_FILENAME