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Add iptables entries to rc.local

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This commit is contained in:
billz 2019-11-17 10:17:57 +00:00
parent ebcdd4d47b
commit 122609866a
1 changed files with 31 additions and 2 deletions
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33
installers/configauth.sh
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@ -1,9 +1,16 @@
#!/bin/bash
# Updates openvpn client.conf with auth credentials
#
# Updates openvpn client.conf with auth credentials,
# adds iptables rules to forward traffic from tun0
# to configured wireless interface
# @author billz
# license: GNU General Public License v3.0
file=$1
interface=$2
echo "Enabling auth credentials in OpenVPN client.conf"
line='auth-user-pass'
file='/tmp/ovpnclient.ovpn'
if grep -q "$line" $file; then
echo "Updating $line"
@ -13,3 +20,25 @@ else
sudo sed -i "$ a $line login.conf" $file
fi
echo "Adding iptables rules for $interface"
# Generate iptables entries to place into rc.local file.
# #RASPAP is for uninstall script
lines=(
"iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE #RASPAP"
"iptables -A FORWARD -i tun0 -o $interface -m state --state RELATED,ESTABLISHED -j ACCEPT #RASPAP"
"iptables -A FORWARD -i wlan0 -o tun0 -j ACCEPT #RASPAP"
)
for line in "${lines[@]}"; do
if grep "$line" /etc/rc.local > /dev/null; then
# iptables rule exists
else
sudo sed -i "s/^exit 0$/$line\nexit 0/" /etc/rc.local
fi
done
# Force a reload of new settings in /etc/rc.local
sudo systemctl restart rc-local.service
sudo systemctl daemon-reload