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Add optional client isolation #450

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Add optional client isolation #450

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39 changes: 33 additions & 6 deletions wireguard-install.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -160,6 +160,10 @@ function installQuestions() {
fi
done

until [[ ${ISOLATE_CLIENTS} =~ y|n ]]; do
read -rp "Do you want to isolate clients from each other? [y/n]: " -e -i "n" ISOLATE_CLIENTS
done

echo ""
echo "Okay, that was all I needed. We are ready to setup your WireGuard server now."
echo "You will be able to generate a client at the end of the installation."
Expand Down Expand Up @@ -236,20 +240,43 @@ PrivateKey = ${SERVER_PRIV_KEY}" >"/etc/wireguard/${SERVER_WG_NIC}.conf"
if pgrep firewalld; then
FIREWALLD_IPV4_ADDRESS=$(echo "${SERVER_WG_IPV4}" | cut -d"." -f1-3)".0"
FIREWALLD_IPV6_ADDRESS=$(echo "${SERVER_WG_IPV6}" | sed 's/:[^:]*$/:0/')
echo "PostUp = firewall-cmd --add-port ${SERVER_PORT}/udp && firewall-cmd --add-rich-rule='rule family=ipv4 source address=${FIREWALLD_IPV4_ADDRESS}/24 masquerade' && firewall-cmd --add-rich-rule='rule family=ipv6 source address=${FIREWALLD_IPV6_ADDRESS}/24 masquerade'
PostDown = firewall-cmd --remove-port ${SERVER_PORT}/udp && firewall-cmd --remove-rich-rule='rule family=ipv4 source address=${FIREWALLD_IPV4_ADDRESS}/24 masquerade' && firewall-cmd --remove-rich-rule='rule family=ipv6 source address=${FIREWALLD_IPV6_ADDRESS}/24 masquerade'" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
echo "PostUp = firewall-cmd --add-port ${SERVER_PORT}/udp && firewall-cmd --add-rich-rule='rule family=ipv4 source address=${FIREWALLD_IPV4_ADDRESS}/24 masquerade' && firewall-cmd --add-rich-rule='rule family=ipv6 source address=${FIREWALLD_IPV6_ADDRESS}/24 masquerade'" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"

if [[ $ISOLATE_CLIENTS == 'y' ]]; then
echo "PostUp = iptables -I FORWARD -i ${SERVER_WG_NIC} -o ${SERVER_WG_NIC} -j REJECT
PostUp = ip6tables -I FORWARD -i ${SERVER_WG_NIC} -o ${SERVER_WG_NIC} -j REJECT" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
fi

echo "PostDown = firewall-cmd --remove-port ${SERVER_PORT}/udp && firewall-cmd --remove-rich-rule='rule family=ipv4 source address=${FIREWALLD_IPV4_ADDRESS}/24 masquerade' && firewall-cmd --remove-rich-rule='rule family=ipv6 source address=${FIREWALLD_IPV6_ADDRESS}/24 masquerade'" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"

if [[ $ISOLATE_CLIENTS == 'y' ]]; then
echo "PostDown = iptables -D FORWARD -i ${SERVER_WG_NIC} -o ${SERVER_WG_NIC} -j REJECT
PostDown = ip6tables -D FORWARD -i ${SERVER_WG_NIC} -o ${SERVER_WG_NIC} -j REJECT" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
fi
else
echo "PostUp = iptables -I INPUT -p udp --dport ${SERVER_PORT} -j ACCEPT
PostUp = iptables -I FORWARD -i ${SERVER_PUB_NIC} -o ${SERVER_WG_NIC} -j ACCEPT
PostUp = iptables -I FORWARD -i ${SERVER_WG_NIC} -j ACCEPT
PostUp = iptables -t nat -A POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE
PostUp = ip6tables -I FORWARD -i ${SERVER_WG_NIC} -j ACCEPT
PostUp = iptables -t nat -A POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"

if [[ $ISOLATE_CLIENTS == 'y' ]]; then
echo "PostUp = iptables -I FORWARD -i ${SERVER_WG_NIC} -o ${SERVER_WG_NIC} -j REJECT
PostUp = ip6tables -I FORWARD -i ${SERVER_WG_NIC} -o ${SERVER_WG_NIC} -j REJECT" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
fi

echo "PostUp = ip6tables -I FORWARD -i ${SERVER_WG_NIC} -j ACCEPT
PostUp = ip6tables -t nat -A POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE
PostDown = iptables -D INPUT -p udp --dport ${SERVER_PORT} -j ACCEPT
PostDown = iptables -D FORWARD -i ${SERVER_PUB_NIC} -o ${SERVER_WG_NIC} -j ACCEPT
PostDown = iptables -D FORWARD -i ${SERVER_WG_NIC} -j ACCEPT
PostDown = iptables -t nat -D POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE
PostDown = ip6tables -D FORWARD -i ${SERVER_WG_NIC} -j ACCEPT
PostDown = iptables -t nat -D POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"

if [[ $ISOLATE_CLIENTS == 'y' ]]; then
echo "PostDown = iptables -D FORWARD -i ${SERVER_WG_NIC} -o ${SERVER_WG_NIC} -j REJECT
PostDown = ip6tables -D FORWARD -i ${SERVER_WG_NIC} -o ${SERVER_WG_NIC} -j REJECT" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
fi

echo "PostDown = ip6tables -D FORWARD -i ${SERVER_WG_NIC} -j ACCEPT
PostDown = ip6tables -t nat -D POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
fi

Expand Down