65 lines
2.7 KiB
Bash
Executable File
65 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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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"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# This gets zipped and run on the cloudpipe-managed OpenVPN server
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export LC_ALL=C
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export SUPERVISOR="http://10.255.255.1:8773/cloudpipe"
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export VPN_IP=`ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{print $1}'`
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export BROADCAST=`ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f3 | awk '{print $1}'`
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export DHCP_MASK=`ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f4 | awk '{print $1}'`
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export GATEWAY=`netstat -r | grep default | cut -d' ' -f10`
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export SUBJ="/C=US/ST=California/L=MountainView/O=AnsoLabs/OU=NovaDev/CN=customer-vpn-$VPN_IP"
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DHCP_LOWER=`echo $BROADCAST | awk -F. '{print $1"."$2"."$3"." $4 - 10 }'`
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DHCP_UPPER=`echo $BROADCAST | awk -F. '{print $1"."$2"."$3"." $4 - 1 }'`
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# generate a server DH
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openssl dhparam -out /etc/openvpn/dh1024.pem 1024
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# generate a server priv key
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openssl genrsa -out /etc/openvpn/server.key 2048
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# generate a server CSR
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openssl req -new -key /etc/openvpn/server.key -out /etc/openvpn/server.csr -batch -subj "$SUBJ"
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# URLEncode the CSR
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CSRTEXT=`cat /etc/openvpn/server.csr`
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CSRTEXT=$(python -c "import urllib; print urllib.quote('''$CSRTEXT''')")
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# SIGN the csr and save as server.crt
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# CURL fetch to the supervisor, POSTing the CSR text, saving the result as the CRT file
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curl --fail $SUPERVISOR -d "cert=$CSRTEXT" > /etc/openvpn/server.crt
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curl --fail $SUPERVISOR/getca/ > /etc/openvpn/ca.crt
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# Customize the server.conf.template
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cd /etc/openvpn
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sed -e s/VPN_IP/$VPN_IP/g server.conf.template > server.conf
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sed -i -e s/DHCP_SUBNET/$DHCP_MASK/g server.conf
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sed -i -e s/DHCP_LOWER/$DHCP_LOWER/g server.conf
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sed -i -e s/DHCP_UPPER/$DHCP_UPPER/g server.conf
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sed -i -e s/max-clients\ 1/max-clients\ 10/g server.conf
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echo "\npush \"route 10.255.255.1 255.255.255.255 $GATEWAY\"\n" >> server.conf
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echo "\npush \"route 10.255.255.253 255.255.255.255 $GATEWAY\"\n" >> server.conf
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echo "\nduplicate-cn\n" >> server.conf
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/etc/init.d/openvpn start
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