added commands to add/del user and set/unset psk

Author: mariotaku

Dockerfile

@@ -39,6 +39,10 @@ ADD xl2tpd.conf /etc/xl2tpd/xl2tpd.conf
 ADD options.xl2tpd /etc/ppp/options.xl2tpd
 
 ADD run.sh /run.sh
+ADD vpn_adduser /usr/local/bin/vpn_adduser
+ADD vpn_deluser /usr/local/bin/vpn_deluser
+ADD vpn_setpsk /usr/local/bin/vpn_setpsk
+ADD vpn_unsetpsk /usr/local/bin/vpn_unsetpsk
 
 # The password is later on replaced with a random string
 ENV VPN_USER user
@@ -49,4 +53,4 @@ VOLUME ["/etc/ipsec.d"]
 
 EXPOSE 4500/udp 500/udp 1701/udp
 
-CMD ["/run.sh"]
+CMD ["/run.sh"]

vpn_adduser

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+vpn_user=$1
+vpn_password=$2
+
+if [ -z ${vpn_user} ] || [ -z ${vpn_password} ]; then
+	echo "Usage: $0 user password"
+	exit 1
+fi
+
+vpn_deluser ${vpn_user}
+
+cat >> /etc/ipsec.d/l2tp-secrets <<EOF
+"${vpn_user}" "*" "${vpn_password}" "*"
+EOF
+
+cat >> /etc/ipsec.d/ipsec.secrets <<EOF
+${vpn_user} : EAP "${vpn_password}"
+${vpn_user} : XAUTH "${vpn_password}"
+EOF

vpn_deluser

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+vpn_user=$1
+
+if [ -z ${vpn_user} ]; then
+	echo "Usage: $0 user"
+	exit 1
+fi
+
+touch /etc/ipsec.d/ipsec.secrets
+touch /etc/ipsec.d/l2tp-secrets
+
+sed -i "/${vpn_user} :/d" /etc/ipsec.d/ipsec.secrets
+sed -i "/\"${vpn_user}\" \"*\"/d" /etc/ipsec.d/l2tp-secrets

vpn_setpsk

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+psk=$1
+
+if [ -z ${psk} ]; then
+	echo "Usage: $0 psk"
+	exit 1
+fi
+
+vpn_unsetpsk
+
+touch /etc/ipsec.d/ipsec.secrets
+cat >> /etc/ipsec.d/ipsec.secrets <<EOF
+: PSK "${psk}"
+EOF

vpn_unsetpsk

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+touch /etc/ipsec.d/ipsec.secrets
+sed '/: PSK/d' /etc/ipsec.d/ipsec.secrets