34eca5b96f
* Previously the server name cached the common name generated during init and assumed always 1194/udp. * The new configuration allows for users to pass in a url in a new form that allows the protocol to be specified as well as the port. * Example: udp://vpn.example.com:1194 * Try to be backwards compatible.
55 lines
1.4 KiB
Bash
Executable File
55 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# Initialize the PKI and OpenVPN configs
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#
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set -ex
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server_url=$1
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# Server name is in the form "udp://vpn.example.com:1194"
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if [[ "$server_url" =~ ^((udp|tcp)://)?([0-9a-zA-Z\.]+)(:([0-9]+))?$ ]]; then
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proto=${BASH_REMATCH[2]};
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cn=${BASH_REMATCH[3]};
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port=${BASH_REMATCH[5]};
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else
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echo "Common name not specified"
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exit 1
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fi
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# Apply defaults
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[ -z "$proto" ] && proto=1194
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[ -z "$port" ] && port=udp
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# Specify "nopass" as arg[2] to make the CA insecure
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nopass=$2
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# Provides a sufficient warning before erasing pre-existing files
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easyrsa init-pki
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# CA always has a password for protection in event server is compromised. The
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# password is only needed to sign client/server certificates. No password is
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# needed for normal OpenVPN operation.
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easyrsa build-ca $nopass
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easyrsa gen-dh
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openvpn --genkey --secret $OPENVPN/pki/ta.key
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# Was nice to autoset, but probably a bad idea in practice, users should
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# have to explicitly specify the common name of their server
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#if [ -z "$cn"]; then
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# #TODO: Handle IPv6 (when I get a VPS with IPv6)...
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# ip4=$(dig +short myip.opendns.com @resolver1.opendns.com)
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# ptr=$(dig +short -x $ip4 | sed -e 's:\.$::')
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#
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# [ -n "$ptr" ] && cn=$ptr || cn=$ip4
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#fi
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echo "$server_url" > $OPENVPN/server_url
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# For a server key with a password, manually init; this is autopilot
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easyrsa build-server-full $cn nopass
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ovpn_genconfig "$cn"
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