36 lines
1.1 KiB
Bash
36 lines
1.1 KiB
Bash
#!/bin/sh -e
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# Copyright 2021 Google LLC
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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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# https://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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# Enable IP forwarding
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sysctl -w net.ipv4.ip_forward=1
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# Stop ipsec when terminating
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_stop_ipsec() {
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echo "Shutting down strongSwan/ipsec..."
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ipsec stop
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}
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trap _stop_ipsec SIGTERM
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# Making the containter to work as a default gateway for LAN_NETWORKS
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iptables -t nat -A POSTROUTING -s ${LAN_NETWORKS} -o ${VPN_DEVICE} -m policy --dir out --pol ipsec -j ACCEPT
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iptables -t nat -A POSTROUTING -s ${LAN_NETWORKS} -o ${VPN_DEVICE} -j MASQUERADE
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# Start ipsec
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echo "Starting up strongSwan/ipsec..."
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ipsec start --nofork "$@" &
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child=$!
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wait "$child"
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