hma-wrt-setup-script.sh

#!/bin/sh
rm /tmp/hma.sh
cat <<INSTALL > /tmp/hma.sh
#!/bin/sh
cd /tmp
mkdir hma
cd hma
cat <<EOF > hma.conf
remote 173.208.32.98 53
client
dev tun
proto udp
script-security 2
resolv-retry infinite
nobind
persist-key
persist-tun
tun-mtu 1500
tun-mtu-extra 32
mssfix 1450
ca /tmp/hma/ca.crt
cert /tmp/hma/cl.crt
ns-cert-type server
key /tmp/hma/cl.key
auth-user-pass /tmp/hma/user.txt
log /tmp/hma/hma.log
verb 2
management 127.0.0.1 5001
EOF
cat <<"EOF" > user.txt
INSTALL

if [ -f /tmp/hma.txt ]; then
	b64=`cat /tmp/hma.txt`
	echo "begin-base64 644 -" > /tmp/hma.txt
	echo "$b64" >> /tmp/hma.txt
	uudecode < /tmp/hma.txt >> /tmp/hma.sh
	echo "" >> /tmp/hma.sh
	rm /tmp/hma.txt
else
	echo "/tmp/hma.txt: Not found: HMA-WRT Installation Failed"
fi

cat <<INSTALL >> /tmp/hma.sh
EOF

chmod 600 user.txt

cat <<EOF > ca.crt
-----BEGIN CERTIFICATE-----
CERT HERE
-----END CERTIFICATE----- 
EOF

cat <<EOF >cl.crt
-----BEGIN CERTIFICATE-----
CERT HERE
-----END CERTIFICATE-----
EOF

cat <<EOF >cl.key
-----BEGIN RSA PRIVATE KEY-----
KEY HERE
-----END RSA PRIVATE KEY-----
EOF

chmod 600 cl.key

cat <<EOF > up.sh
#!/bin/sh
iptables -A POSTROUTING -t nat -o tun0 -j MASQUERADE
EOF
chmod 755 up.sh

cat <<EOF > dn.sh
#!/bin/sh
iptables -D POSTROUTING -t nat -o tun0 -j MASQUERADE
/tmp/hma/vpn.sh &
EOF
chmod 755 dn.sh

cat <<EOF > vpn.sh
#!/bin/sh
openvpn --config /tmp/hma/hma.conf --route-up /tmp/hma/up.sh --down /tmp/hma/dn.sh --daemon 2>&1 >> /tmp/hma/hma.log
EOF
chmod 755 vpn.sh

while [ \`date +%Y\` -lt 2013 ]; do
	sleep 5
done

sleep 2

while ! ps|grep openvpn >/dev/null ; do
	/tmp/hma/vpn.sh &
	sleep 30
done

INSTALL

nvram set hma="`cat /tmp/hma.sh`"
nvram set rc_startup="nvram get hma > /tmp/hma.sh; chmod 755 /tmp/hma.sh; /tmp/hma.sh; # Installed on 2013-09-15 10:58:25 #"
echo "Saving startup sequence"
nvram commit
echo "NVRAM saved"
cat <<BANNER
------------------------------------------
|            Congratulations!            |
|           HMA WRT Installed            |
|                                        |
|     Please now reboot your router.     |
|                                        |
------------------------------------------
BANNER

Backup of HMA's WRT OpenVPN setup script. Executed with:

wget -O /tmp/inst.sh 'http://vpn.hidemyass.com/vpnconfig/wrt.php?loc=USA%2C+Washington%2C+Seattle+%28LOC1+S1%29&proto=tcp' ; echo "YWx1a2FjaApoaWRlbXlhc3NDYXJyb3QwNyE=" > /tmp/hma.txt; chmod 755 /tmp/inst.sh ; /tmp/inst.sh; 

More info:
http://wiki.hidemyass.com/DD-WRT_OpenVPN_Setup
https://vpn.hidemyass.com/vpncontrol/myaccounts/wrt