Mesh tunnel

src/freedombone-app-batman

@@ -137,6 +137,117 @@ function mesh_install_batman {
     chroot "$rootdir" systemctl enable batman
 }
 
+function install_mesh_tunnel {
+    # https://sudoroom.org/wiki/Mesh/Relay_setup
+    chroot "$rootdir" apt-get -yq install xl2tpd l2tpns
+    chroot "$rootdir" apt-get -yq install iproute bridge-utils libnetfilter-conntrack3 python-dev libevent-dev ebtables python-pip git
+
+    git clone https://github.com/wlanslovenija/tunneldigger $rootdir/opt/tunneldigger
+    cd $rootdir/opt/tunneldigger/client
+    chroot "$rootdir" make
+    if [ ! -f $rootdir/opt/tunneldigger/client/l2tp_client ]; then
+        echo $'tunneldigger failed to build client'
+        exit 823563
+    fi
+    cd $rootdir/opt/tunneldigger/broker
+    chroot "$rootdir" pip install -r requirements.txt
+    echo 'l2tp_core' >> $rootdir/etc/modules
+    echo 'l2tp_eth' >> $rootdir/etc/modules
+    echo 'l2tp_netlink' >> $rootdir/etc/modules
+
+    echo '#!/bin/sh' > $rootdir/opt/tunneldigger/broker/scripts/up_hook.sh
+    echo 'INTERFACE="$3"' >> $rootdir/opt/tunneldigger/broker/scripts/up_hook.sh
+    echo 'ifconfig $INTERFACE up' >> $rootdir/opt/tunneldigger/broker/scripts/up_hook.sh
+    echo 'batctl if add $INTERFACE' >> $rootdir/opt/tunneldigger/broker/scripts/up_hook.sh
+    echo 'if [ `cat /sys/class/net/bat0/operstate` != "up" ]; then' >> $rootdir/opt/tunneldigger/broker/scripts/up_hook.sh
+    echo "  ipv4addr=\$(ip -o -f inet addr show dev \"eth0\" | awk '{print \$4}' | awk 'END {print}' | awk -F '/' '{print \$1}')" >> $rootdir/opt/tunneldigger/broker/scripts/up_hook.sh
+    echo '  ifconfig bat0 $ipv4addr netmask 255.0.0.0 up' >> $rootdir/opt/tunneldigger/broker/scripts/up_hook.sh
+    echo 'fi' >> $rootdir/opt/tunneldigger/broker/scripts/up_hook.sh
+    chmod +x $rootdir/opt/tunneldigger/broker/scripts/up_hook.sh
+
+    echo '[broker]' > $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; IP address the broker will listen and accept tunnels on' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'address=127.0.0.1' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Ports where the broker will listen on' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo "port=53,123,8942" >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Interface with that IP address' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'interface=lo' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Maximum number of tunnels that will be allowed by the broker' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'max_tunnels=1024' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Tunnel port base' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'port_base=20000' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Tunnel id base' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'tunnel_id_base=100' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Namespace (for running multiple brokers); note that you must also' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; configure disjunct ports, and tunnel identifiers in order for' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; namespacing to work' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'namespace=default' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; check if all kernel module are loaded. Do not check for built-ins.' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'check_modules=true' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '[log]' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Log filename' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'filename=tunneldigger-broker.log' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Verbosity' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'verbosity=DEBUG' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Should IP addresses be logged or not' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'log_ip_addresses=false' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '[hooks]' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Arguments to the session.{up,pre-down,down} hooks are as follows:' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo ';' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo ';    <tunnel_id> <session_id> <interface> <mtu> <endpoint_ip> <endpoint_port> <local_port>' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo ';' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Arguments to the session.mtu-changed hook are as follows:' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo ';' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo ';    <tunnel_id> <session_id> <interface> <old_mtu> <new_mtu>' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo ';' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Called after the tunnel interface goes up' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'session.up=/opt/tunneldigger/broker/scripts/up_hook.sh' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Called just before the tunnel interface goes down' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'session.pre-down=' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Called after the tunnel interface goes down' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'session.down=' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo '; Called after the tunnel MTU gets changed because of PMTU discovery' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+    echo 'session.mtu-changed=' >> $rootdir/opt/tunneldigger/broker/l2tp_broker.cfg
+
+    echo '[Unit]' > $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'Description=TunnelDigger Broker' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'After=syslog.target' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'After=network.target' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo '' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo '[Service]' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'Type=simple' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'User=root' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'Group=root' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'WorkingDirectory=/opt/tunneldigger/broker' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'ExecStart=/opt/tunneldigger/broker/l2tp_broker.py l2tp_broker.cfg' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'Restart=always' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'RestartSec=60' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo '' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo '[Install]' >> $rootdir/etc/systemd/system/tunneldigger.service
+    echo 'WantedBy=multi-user.target' >> $rootdir/etc/systemd/system/tunneldigger.service
+
+    echo '#!/bin/bash' > $rootdir/usr/bin/meshtunnel
+    echo 'if [ ! $1 ]; then' >> $rootdir/usr/bin/meshtunnel
+    echo '    echo "Syntax: meshtunnel [from external IP] [to external IP]"' >> $rootdir/usr/bin/meshtunnel
+    echo '    exit 1' >> $rootdir/usr/bin/meshtunnel
+    echo 'fi' >> $rootdir/usr/bin/meshtunnel
+    echo 'if [ ! $2 ]; then' >> $rootdir/usr/bin/meshtunnel
+    echo '    echo "Syntax: meshtunnel [from external IP] [to external IP]"' >> $rootdir/usr/bin/meshtunnel
+    echo '    exit 2' >> $rootdir/usr/bin/meshtunnel
+    echo 'fi' >> $rootdir/usr/bin/meshtunnel
+    echo '' >> $rootdir/usr/bin/meshtunnel
+    echo 'sed -i "s|address=.*|address=$1|g" /opt/tunneldigger/broker/l2tp_broker.cfg' >> $rootdir/usr/bin/meshtunnel
+    echo 'systemctl restart tunneldigger' >> $rootdir/usr/bin/meshtunnel
+    echo 'sleep 3' >> $rootdir/usr/bin/meshtunnel
+    echo 'cd /opt/tunneldigger/client' >> $rootdir/usr/bin/meshtunnel
+    echo './l2tp_client -f -u foo -l ${2}:53 -i l2tp' >> $rootdir/usr/bin/meshtunnel
+    echo 'exit 0' >> $rootdir/usr/bin/meshtunnel
+    chmod +x $rootdir/usr/bin/meshtunnel
+}
+
 function install_batman {
     if [ $INSTALLING_MESH ]; then
         mesh_install_batman

src/freedombone-image-mesh

@@ -554,6 +554,12 @@ function setup_tahoelafs {
     echo $'Configured Tahoe-LAFS' >> $INSTALL_LOG
 }
 
+function setup_tunneldigger {
+    systemctl enable tunneldigger
+    systemctl daemon-reload
+    systemctl start tunneldigger
+}
+
 # whether to reset the identity
 set_new_identity=
 if [ $2 ]; then