# Fail2Ban configuration file
#
# Author: Edgar Hoch
# Copied from iptables-new.conf and modified for use with firewalld by Edgar Hoch.
#  It uses "firewall-cmd" instead of "iptables".
#  firewall-cmd is based on the command of version firewalld-0.3.4-1.fc19.

[Definition]

actionstart = firewall-cmd --direct --add-chain ipv4 filter fail2ban-<name>
              firewall-cmd --direct --add-rule ipv4 filter fail2ban-<name> 1000 -j RETURN
              firewall-cmd --direct --add-rule ipv4 filter <chain> 0 -m state --state NEW -p <protocol> --dport <port> -j fail2ban-<name>

# The following rule does not work, because firewalld keeps its own database of firewall rules.
# firewall-cmd --direct --passthrough ipv4 -F fail2ban-<name>
# The better rule would be the following, but firewall-cmd has not implemented this command with firewalld-0.3.3-2.fc19 .
# firewall-cmd --direct --flush-chain ipv4 filter fail2ban-<name>
# The following is a workaround using a loop to implement the --flush-chain command.

actionstop = firewall-cmd --direct --remove-rule ipv4 filter <chain> 0 -m state --state NEW -p <protocol> --dport <port> -j fail2ban-<name>
             ( IFS='|' ; for r in $( firewall-cmd --direct --get-rules ipv4 filter fail2ban-<name> | tr '\n' '|' ) ; do eval firewall-cmd --direct --remove-rule ipv4 filter fail2ban-<name> $r ; done )
             firewall-cmd --direct --remove-chain ipv4 filter fail2ban-<name>

actioncheck = firewall-cmd --direct --get-chains ipv4 filter | grep -q 'fail2ban-<name>[ \t]'

actionban = firewall-cmd --direct --add-rule ipv4 filter fail2ban-<name> 0 -s <ip> -j DROP

actionunban = firewall-cmd --direct --remove-rule ipv4 filter fail2ban-<name> 0 -s <ip> -j DROP

[Init]

# Defaut name of the chain
#
name = default

# Option:  port
# Notes.:  specifies port to monitor
# Values:  [ NUM | STRING ]  Default:
#
port = ssh

# Option:  protocol
# Notes.:  internally used by config reader for interpolations.
# Values:  [ tcp | udp | icmp | all ] Default: tcp
#
protocol = tcp

# Option:  chain
# Notes    specifies the iptables chain to which the fail2ban rules should be
#          added
# Values:  STRING  Default: INPUT
chain = INPUT_direct