#!/bin/sh -e
#
# 2016 Kamila Součková (coding at kamila.is)
#
# This file is part of cdist.
#
# cdist 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 3 of the License, or
# (at your option) any later version.
#
# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
#

# TODO it would be cool to print a warning if a generated anchor is unused in pf.conf

ANCHORS_DIR=/etc/pf.d

proto="$(cat "${__object}/parameter/proto")"
from="$(cat "${__object}/parameter/from")"
to="$(cat "${__object}/parameter/to")"
state="$(cat "${__object}/parameter/state")"

# This breaks utterly with IPv6
from="$(echo ${from} | sed 's/:/ port /')"
to="$(echo ${to} | sed 's/:/ port /')"

anchor_name="$(echo ${__object_id} | cut -d/ -f1)"
rule="rdr pass log proto ${proto} from any to ${from} -> ${to}"

__directory "${ANCHORS_DIR}" --parents

require="__directory/${ANCHORS_DIR}" \
__line __pf_rdr/${__object_id} --state ${state} --line "${rule}" --file ${ANCHORS_DIR}/${anchor_name}