#!/bin/sh /etc/rc.common
#     The Shoreline Firewall (Shorewall) Packet Filtering Firewall - V5.0
#
#     (c) 2010,2012-2014 - Tom Eastep (teastep@shorewall.net)
#     (c) 2016           - Matt Darfeuille (matdarf@gmail.com)
#
#       On most distributions, this file should be called /etc/init.d/shorewall-init.
#
#       This program is part of Shorewall.
#
#	This program is free software; you can redistribute it and/or modify
#	it under the terms of the GNU General Public License as published by the
#       Free Software Foundation, either version 2 of the license or, at your
#       option, any later version.
#
#	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/>.
#
#       You should have received a copy of the GNU General Public License
#       along with this program; if not, write to the Free Software
#       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
#

# arg1 of init script is arg2 when rc.common is sourced

case "$action" in
  start|stop|boot)
      if [ "$(id -u)" != "0" ]
      then
	  echo "You must be root to start, stop or restart \"Shorewall \"."
	  exit 1
      fi

      # check if shorewall-init is configured or not
      if [ -f "/etc/sysconfig/shorewall-init" ]
      then
	  . /etc/sysconfig/shorewall-init
	  if [ -z "$PRODUCTS" ]
	  then
	      exit 0
	  fi
      else
	  exit 0
      fi

      ;;
  enable|disable|enabled)
      # Openwrt related
      # start and stop runlevel variable
      START=19
      STOP=91
      ;;
  *)
      echo "Usage: /etc/init.d/shorewall-init {start|stop}"
      exit 1
esac

#
# The installer may alter this
#
. /usr/share/shorewall/shorewallrc

# Locate the current PRODUCT's statedir
setstatedir() {
    local statedir
    if [ -f ${CONFDIR}/${PRODUCT}/vardir ]; then
	statedir=$( . ${CONFDIR}/${PRODUCT}/vardir && echo $VARDIR )
    fi

    [ -n "$statedir" ] && STATEDIR=${statedir} || STATEDIR=${VARLIB}/${PRODUCT}

    if [ -x ${STATEDIR}/firewall ]; then
	return 0
    elif [ $PRODUCT = shorewall ]; then
	${SBINDIR}/shorewall compile
    elif [ $PRODUCT = shorewall6 ]; then
	${SBINDIR}/shorewall -6 compile
    else
	return 1
    fi
}

# Initialize the firewall
start () {
    local PRODUCT
  local STATEDIR

  printf "Initializing \"Shorewall-based firewalls\": "
  for PRODUCT in $PRODUCTS; do
      if setstatedir; then
	  if ! ${SBIN}/$PRODUCT status > /dev/null 2>&1; then
	      ${STATEDIR}/firewall ${OPTIONS} stop
	  fi
      fi
  done

  if [ -n "$SAVE_IPSETS" -a -f "$SAVE_IPSETS" ]; then
      ipset -R < "$SAVE_IPSETS"
  fi

  return 0
}

boot () {
    start
}

# Clear the firewall
stop () {
    local PRODUCT
    local STATEDIR

    printf "Clearing \"Shorewall-based firewalls\": "
    for PRODUCT in $PRODUCTS; do
	if setstatedir; then
	    ${STATEDIR}/firewall ${OPTIONS} clear
	fi
    done

    if [ -n "$SAVE_IPSETS" ]; then
	mkdir -p $(dirname "$SAVE_IPSETS")
	if ipset -S > "${SAVE_IPSETS}.tmp"; then
	    grep -qE -- '^(-N|create )' "${SAVE_IPSETS}.tmp" && mv -f "${SAVE_IPSETS}.tmp" "$SAVE_IPSETS" || rm -f "${SAVE_IPSETS}.tmp"
	else
	    rm -f "${SAVE_IPSETS}.tmp"
	fi
    fi

    return 0
}