#!/bin/bash
# I, Ian Kelling, follow the GNU license recommendations at
# https://www.gnu.org/licenses/license-recommendations.en.html. They
# recommend that small programs, < 300 lines, be licensed under the
# Apache License 2.0. This file contains or is part of one or more small
# programs. If a small program grows beyond 300 lines, I plan to switch
# its license to GPL.

# Copyright 2024 Ian Kelling

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR

x="$(readlink -f "$BASH_SOURCE")"; cd ${x%/*} # directory of this file

# see lan-dyn-dns-update. this is the corresponding script for on connect/disconnect from vpn

d=/p/ovpn-ssh
ssh_cmd="ssh -F$d/.config -i$d/home root@wrt.b8.nz cedit ovpn-$X509_0_CN /etc/hosts"
case $script_type in
    client-connect) $ssh_cmd <<<"$ifconfig_pool_remote_ip $X509_0_CN"|| [[ $? == 1 ]]
        ;;
    client-disconnect)
        $ssh_cmd <<<$(grep -F $X509_0_CN lan-dns) || [[ $? == 1 ]]
        ;;
esac