101 lines
3.8 KiB
Bash
Executable File
101 lines
3.8 KiB
Bash
Executable File
#!/bin/bash
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### BEGIN INIT INFO
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# Provides: scriptname
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# Required-Start: $network
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# Required-Stop: $network
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: iptables
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# Description: Enable firewall rules
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### END INIT INFO
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exec 1> >(logger -s -t $(basename $0)) 2>&1
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case $1 in
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start)
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echo -n "firewall start..."
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### IPv4
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iptables -P INPUT ACCEPT
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iptables -F INPUT
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#unencrypted traffic
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iptables -A INPUT -s 10.1.0.0/16 -p esp -j ACCEPT
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iptables -A INPUT -s 10.1.0.0/16 -p udp --dport 500 --sport 500 -j ACCEPT
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iptables -A INPUT -s 10.1.0.0/16 -p udp --dport 4500 --sport 4500 -j ACCEPT
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iptables -A INPUT -p icmp -j ACCEPT
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#traffic we wanna see from the VPN
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iptables -A INPUT -m policy --pol ipsec --dir in -s 10.1.0.0/16 -p udp --dport 4789 -m policy --pol ipsec --dir in -j ACCEPT # vxlan traffic
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iptables -A INPUT -m policy --pol ipsec --dir in -m multiport -s 10.1.0.0/16 -p tcp --dports 49152:49215 -j ACCEPT # libvirt live migration
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#iptables -A INPUT -m policy --pol ipsec --dir in -m multiport -s 10.1.0.0/16 -p tcp --dports 6800:7300 -j ACCEPT # ceph traffic
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##### DROP the rest
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iptables -P INPUT DROP
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#### IPv6
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ip6tables -P INPUT ACCEPT
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ip6tables -F INPUT
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ip6tables -A INPUT -p ipv6-icmp -j ACCEPT
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ip6tables -A INPUT -s fe80::/10 -p tcp --sport 179 -j ACCEPT
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ip6tables -A INPUT -s fe80::/10 -p tcp --dport 179 -j ACCEPT
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ip6tables -A INPUT -s 2001:4860:4860::8888 -p udp --sport 53 -j ACCEPT
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ip6tables -A INPUT -s 2001:4860:4860::8844 -p udp --sport 53 -j ACCEPT
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ip6tables -A INPUT -s 2001:67c:1560:8003::c7 -p udp --sport 123 -j ACCEPT
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ip6tables -A INPUT -s 2001:67c:1560:8003::c8 -p udp --sport 123 -j ACCEPT
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### DROP the rest
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ip6tables -P INPUT DROP
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#special tables
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iptables -t mangle -F
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iptables -t nat -F
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iptables -t raw -F
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ip6tables -t mangle -F
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ip6tables -t nat -F
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ip6tables -t raw -F
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ip6tables -t raw -A PREROUTING -j NOTRACK
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ip6tables -t raw -A OUTPUT -j NOTRACK
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##### temp rules till we get VRF in place in the factory, just flip the 3 rules below
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if ip link show dev mgmt >/dev/null 2>&1; then
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iptables -t raw -A PREROUTING ! -i mgmt1 -j NOTRACK
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iptables -t raw -A OUTPUT ! -o mgmt -j NOTRACK
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iptables -A INPUT -i mgmt -m state --state ESTABLISHED,RELATED -j ACCEPT
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iptables -A INPUT -i mgmt -s 10.0.0.0/8 -p tcp --dport 22 -j ACCEPT
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else
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iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
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iptables -A INPUT -s 10.0.0.0/8 -p tcp --dport 22 -j ACCEPT
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fi
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##### end temp rules
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;;
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stop)
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echo -n "firewall stop..."
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#### Firewall rules
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iptables -P INPUT ACCEPT
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iptables -F
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iptables -t raw -F
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iptables -t nat -F
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iptables -t mangle -F
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ip6tables -P INPUT ACCEPT
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ip6tables -F
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ip6tables -t raw -F
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ip6tables -t nat -F
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ip6tables -t mangle -F
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echo " done"
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;;
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restart)
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#$0 stop
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$0 start
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;;
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*)
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echo "use $0 [start|stop|restart]"
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;;
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esac
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