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#!/bin/sh
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#
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# ovpn-dnslinkup
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#
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# part of pfSense (https://www.pfsense.org)
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# Copyright (c) 2021 Rubicon Communications, LLC (Netgate)
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# All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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if [ "${dev_type}" = "tun" ]; then
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if [ -n "${route_vpn_gateway}" ]; then
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/bin/echo ${route_vpn_gateway} > /tmp/${1}_router
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elif [ -n "${ifconfig_remote}" ]; then
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/bin/echo ${ifconfig_remote} > /tmp/${1}_router
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elif [ -n "${ifconfig_local}" ]; then
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/bin/echo ${ifconfig_local} > /tmp/${1}_router
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else
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/bin/echo ${5} > /tmp/${1}_router
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fi
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if [ -n "${route_ipv6_gateway_1}" ]; then
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/bin/echo ${route_ipv6_gateway_1} > /tmp/${1}_routerv6
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elif [ -n "${ifconfig_ipv6_remote}" ]; then
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/bin/echo ${ifconfig_ipv6_remote} > /tmp/${1}_routerv6
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elif [ -n "${ifconfig_ipv6_local}" ]; then
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/bin/echo ${ifconfig_ipv6_local} > /tmp/${1}_routerv6
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fi
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else
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if [ -n "${route_vpn_gateway}" ]; then
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/bin/echo ${route_vpn_gateway} > /tmp/${1}_router
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fi
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if [ -n "${route_ipv6_gateway_1}" ]; then
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/bin/echo ${route_ipv6_gateway_1} > /tmp/${1}_routerv6
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fi
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fi
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# use OpenVPN provided DNS, see https://redmine.pfsense.org/issues/11140
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/bin/rm -f /var/etc/nameserver_${1}
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/bin/rm -f /var/etc/nameserver_v6${1}
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/bin/rm -f /var/etc/searchdomain_${1}
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for num in `seq 50`; do
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option="$(eval echo \$foreign_option_${num})"
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if [ -z "${option}" ]; then
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break
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fi
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part1="$(/bin/echo ${option} | /usr/bin/cut -d ' ' -f 1)"
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if [ "$part1" == "dhcp-option" ]; then
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part2="$(/bin/echo ${option} | /usr/bin/cut -d ' ' -f 2)"
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part3="$(/bin/echo ${option} | /usr/bin/cut -d ' ' -f 3)"
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if [ "$part2" = "DNS" ]; then
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DNS="${part3}"
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/bin/echo ${DNS} >> /var/etc/nameserver_${1}
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/sbin/route change -inet "${DNS}" -iface ${1} || /sbin/route add -inet "${DNS}" -iface ${1}
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elif [ "$part2" = "DNS6" ]; then
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DNS="${part3}"
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/bin/echo ${DNS} >> /var/etc/nameserver_v6${1}
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/sbin/route change -inet6 "${DNS}" -iface ${1} || /sbin/route add -inet6 "${DNS}" -iface ${1}
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elif [ "$part2" = "DOMAIN" -o "$part2" = "DOMAIN-SEARCH" ]; then
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/bin/echo ${part3} >> /var/etc/searchdomain_${1}
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fi
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fi
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done
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/usr/bin/touch /tmp/${1}up
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# reload filter
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/usr/local/sbin/pfSctl -c "interface newip ${1}"
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exit 0
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