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#!/bin/bash
#
# fermreload.sh
# V: 0.1
#
# Reloads the ferm firewall ruleset and is invoked by
# the udev via /etc/udev/rules.d/81-vpn-firewall.rules.
#
# IPredator 2014
# Released under the Kopimi license.
#
# Blog post: https://blog.ipredator.se/linux-firewall-howto.html
#
LOGGER=/usr/bin/logger
LOGGER_TAG=$0
UDEV_ACTION=$1
FERM=/usr/sbin/ferm
FERM_CONF=/etc/ferm/ferm.conf
MSG_FW_RULE_ADD="Adding VPN firewall rules."
MSG_FW_RULE_REMOVE="Removing VPN firewall rules."
MSG_UDEV_ACTION_UNKNOWN="Unknown udev action."
case "$UDEV_ACTION" in
add)
$LOGGER -t $LOGGER_TAG $MSG_FW_RULE_ADD
$FERM $FERM_CONF
;;
remove)
$LOGGER -t $LOGGER_TAG $MSG_FW_RULE_REMOVE
$FERM $FERM_CONF
;;
*)
$LOGGER -t $LOGGER_TAG $MSG_UDEV_ACTION_UNKNOWN
exit 1
esac
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