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#!/bin/sh
#
# ufw-init: helper script to be used by ufw itself
#
# Copyright 2008-2015 Canonical Ltd.
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License version 3,
#    as published by the Free Software Foundation.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
set -e

# FIXME: this shouldn't be ordered
rootdir=
if [ "$1" = "--rootdir" ] && [ -n "$2" ]; then
    rootdir="$2/" # ensure trailing slash
    shift 2
fi
datadir=
if [ "$1" = "--datadir" ] && [ -n "$2" ]; then
    datadir="$2/" # ensure trailing slash
    shift 2
fi
export DATA_DIR="$datadir"

# Debian/Ubuntu: small boot speed improvement
. "${rootdir}/etc/ufw/ufw.conf"
if [ "$1" = "start" ] && [ "$2" = "quiet" ] && [ "$ENABLED" = "no" ]; then
    exit 0
fi

if [ -s "${rootdir}/lib/ufw/ufw-init-functions" ]; then
    . "${rootdir}/lib/ufw/ufw-init-functions"
else
    echo "Could not find ${rootdir}/lib/ufw/ufw-init-functions (aborting)"
    exit 1
fi

case "$1" in
start)
    # process multiple error strings
    ret=0
    output=`ufw_start` || ret="$?"
    test -n "$output" && echo "$output" | while read line ; do
        if [ "$2" = "quiet" ] || [ "$QUIET" = "yes" ]; then
            echo "$line" | grep -q "Skip starting" && continue
        fi
        echo "$line"
    done
    exit "$ret"
    ;;
stop)
    ufw_stop || exit "$?"
    ;;
force-stop)
    ufw_stop --force || exit "$?"
    ;;
restart|force-reload)
    ufw_reload || exit "$?"
    ;;
status)
    ufw_status || exit "$?"
    # If before.init and after.init support 'status', just display them after
    # ufw_status() so it is prettier
    if [ -x "$RULES_PATH/before.init" ]; then
        "$RULES_PATH/before.init" status || exit "$?"
    fi
    if [ -x "$RULES_PATH/after.init" ]; then
        "$RULES_PATH/after.init" status || exit "$?"
    fi
    ;;
flush-all)
    # Use sparingly. It flushes the built-in chains, deletes all non-builtin
    # chains and resets the policy to ACCEPT
    if [ -x "$RULES_PATH/before.init" ]; then
        "$RULES_PATH/before.init" flush-all || exit "$?"
    fi
    flush_builtins || exit "$?"
    if [ -x "$RULES_PATH/after.init" ]; then
        "$RULES_PATH/after.init" flush-all || exit "$?"
    fi
    ;;
*)
    echo "Usage: /lib/ufw/ufw-init {start|stop|restart|force-reload|force-stop|flush-all|status}"
    exit 1
    ;;
esac