evobackup/lib/bkctld-firewall

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#!/bin/sh
#
# Update firewall rules of <jailname> or all
# Usage: firewall <jailname>|all
#
# shellcheck source=./includes
LIBDIR="$(dirname $0)" && . "${LIBDIR}/includes"
jail_name="${1:?}"
if [ -z "${jail_name}" ]; then
"${LIBDIR}/bkctld-help" && exit 1
fi
jail_path=$(jail_path "${jail_name}")
iptables_input_accept() {
jail_name="${1}"
port="${2}"
ip="${3}"
echo "/sbin/iptables -A INPUT -p tcp --sport 1024: --dport ${port} -s ${ip} -j ACCEPT #${jail_name}"
}
if [ -n "${FIREWALL_RULES}" ]; then
# remove existing rules for this jail
[ -f "${FIREWALL_RULES}" ] && sed -i "/#${jail_name}$/d" "${FIREWALL_RULES}"
if [ -d "${jail_path}" ]; then
port=$("${LIBDIR}/bkctld-port" "${jail_name}")
# Add a rule for each IP
for ip in $("${LIBDIR}/bkctld-ip" "${jail_name}"); do
iptables_input_accept "${jail_name}" "${port}" "${ip}" >> "${FIREWALL_RULES}"
done
# Restart the firewall
[ -f /etc/init.d/minifirewall ] && /etc/init.d/minifirewall restart >/dev/null
fi
notice "${jail_name}: firewall rules have been updated."
else
warning "${jail_name}: skipping firewall update, FIREWALL_RULES variable is empty."
fi