Daemon to restart mesh networking when ethernet is connected

src/freedombone-image-mesh

@@ -867,6 +867,7 @@ function mesh_restart_daemons {
     systemctl restart avahi-daemon
     systemctl restart tox-bootstrapd
     systemctl restart nginx
+    systemctl restart ethmesh
     echo $'Daemons restarted' >> $INSTALL_LOG
 }
 
@@ -1330,6 +1331,31 @@ function initialise_scuttlebot_pub {
     fi
 }
 
+function mesh_ethernet_daemon {
+    if [ -f /etc/systemd/system/ethmesh.service ]; then
+        return
+    fi
+
+    { echo '[Unit]';
+      echo 'Description=Ethernet daemon for mesh';
+      echo 'After=network.target';
+      echo '';
+      echo '[Service]';
+      echo 'User=root';
+      echo "ExecStart=/usr/local/bin/${PROJECT_NAME}-mesh-ethernet";
+      echo "ExecReload=/bin/kill \$MAINPID";
+      echo 'KillMode=process';
+      echo 'Restart=always';
+      echo '';
+      echo '[Install]';
+      echo 'WantedBy=multi-user.target'; } > /etc/systemd/system/ethmesh.service
+
+    systemctl enable ethmesh
+    systemctl daemon-reload
+    systemctl start ethmesh
+}
+
+
 # whether to reset the identity
 set_new_identity=
 if [ "$2" ]; then
@@ -1449,6 +1475,7 @@ if [ -f $MESH_INSTALL_SETUP ]; then
     enable_peertube
     mesh_amnesic
     make_root_read_only
+    mesh_ethernet_daemon
 
     if [ ! -f $MESH_AMNESIC ]; then
         rm $MESH_INSTALL_SETUP

src/freedombone-mesh-ethernet

+#!/bin/bash
+#  _____               _           _
+# |   __|___ ___ ___ _| |___ _____| |_ ___ ___ ___
+# |   __|  _| -_| -_| . | . |     | . | . |   | -_|
+# |__|  |_| |___|___|___|___|_|_|_|___|___|_|_|___|
+#
+#                              Freedom in the Cloud
+#
+# Daemon which monitors whether ethernet is connected or not
+#
+# License
+# =======
+#
+# Copyright (C) 2018 Bob Mottram <bob@freedombone.net>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+ETHERNET_ATTACHED=/sys/class/net/eth0/carrier
+prev_eth_attached=$(cat $ETHERNET_ATTACHED)
+
+while true
+do
+    sleep 5
+    eth_attached=$(cat $ETHERNET_ATTACHED)
+    if [[ "$eth_attached" != "$prev_eth_attached" ]]; then
+        /usr/local/bin/batman restart
+    fi
+    prev_eth_attached=$eth_attached
+done
+
+exit 0