freedombone/src/freedombone-mesh-batman

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#!/bin/bash
#
# .---. . .
# | | |
# |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
# | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
#
# Freedom in the Cloud
#
# Used to enable or disable batman mesh protocol on wlanX
#
# License
# =======
#
# Copyright (C) 2015-2016 Bob Mottram <bob@robotics.uk.to>
#
# 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/>.
PROJECT_NAME='freedombone'
COMPLETION_FILE=/root/${PROJECT_NAME}-completed.txt
if [[ $1 == "start" ]]; then
# install avahi
sed -i "s|#host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf
sed -i "s|host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf
sed -i "s|use-ipv4=.*|use-ipv4=yes|g" /etc/avahi/avahi-daemon.conf
sed -i "s|use-ipv6=.*|use-ipv6=no|g" /etc/avahi/avahi-daemon.conf
sed -i "s|#disallow-other-stacks=.*|disallow-other-stacks=yes|g" /etc/avahi/avahi-daemon.conf
sed -i "s|hosts:.*|hosts: files mdns4_minimal dns mdns4 mdns|g" /etc/nsswitch.conf
fi
# Mesh definition
WIFI_SSID=
if ! grep -q "WIFI_SSID:" $COMPLETION_FILE; then
WIFI_SSID='mesh'
else
WIFI_SSID=$(cat $COMPLETION_FILE | grep "WIFI_SSID:" | awk -F ':' '{print $2}')
fi
sed -i "s|WIFI_SSID:.*|WIFI_SSID:${WIFI_SSID}|g" $COMPLETION_FILE
CELLID='any'
CHANNEL=
if ! grep -q "Wifi channel:" $COMPLETION_FILE; then
CHANNEL=2
else
CHANNEL=$(cat $COMPLETION_FILE | grep "Wifi channel:" | awk -F ':' '{print $2}')
fi
sed -i "s|Wifi channel:.*|Wifi channel:${CHANNEL}|g" $COMPLETION_FILE
ZERONET_PORT=15441
IPFS_PORT=4001
# Ethernet bridge definition (bridged to bat0)
BRIDGE=br-mesh
IFACE='wlan0'
EIFACE=eth0
if [[ $IFACE == "wlan0" ]]; then
if grep -q "wlan1" /proc/net/dev; then
IFACE=wlan1
fi
fi
if [[ $IFACE == "wlan0" ]]; then
if grep -q "wlan2" /proc/net/dev; then
IFACE=wlan2
fi
fi
if [[ $IFACE == "wlan0" ]]; then
if grep -q "wlan3" /proc/net/dev; then
IFACE=wlan3
fi
fi
if [ -e /etc/default/batctl ]; then
. /etc/default/batctl
fi
function status {
batctl o
}
function stop {
if [ -z "$IFACE" ]; then
echo 'error: unable to find wifi interface, not enabling batman-adv mesh'
return
fi
if [ "$EIFACE" ]; then
brctl delif $BRIDGE bat0
brctl delif $BRIDGE $EIFACE
ifconfig $BRIDGE down || true
brctl delbr $BRIDGE
ifconfig $EIFACE down -promisc
fi
avahi-autoipd -k $BRIDGE
avahi-autoipd -k $IFACE
ifconfig bat0 down -promisc
batctl if del $IFACE
rmmod batman-adv
ifconfig $IFACE mtu 1500
ifconfig $IFACE down
iwconfig $IFACE mode managed
iptables -D INPUT -p tcp --dport 548 -j ACCEPT
iptables -D INPUT -p udp --dport 548 -j ACCEPT
iptables -D INPUT -p tcp --dport 5353 -j ACCEPT
iptables -D INPUT -p udp --dport 5353 -j ACCEPT
iptables -D INPUT -p tcp --dport 5354 -j ACCEPT
iptables -D INPUT -p udp --dport 5354 -j ACCEPT
iptables -D INPUT -p tcp --dport $ZERONET_PORT -j ACCEPT
iptables -D INPUT -p udp --dport $ZERONET_PORT -j ACCEPT
iptables -D INPUT -p tcp --dport $IPFS_PORT -j ACCEPT
systemctl restart network-manager
}
function verify {
tempfile="$(mktemp)"
batctl o > $tempfile
if grep -q "disabled" $tempfile; then
echo $'B.A.T.M.A.N. not enabled'
rm $tempfile
stop
exit 726835
fi
echo $'B.A.T.M.A.N. is running'
rm $tempfile
}
function start {
if [ -z "$IFACE" ] ; then
echo 'error: unable to find wifi interface, not enabling batman-adv mesh'
exit 723657
fi
echo "info: enabling batman-adv mesh network $WIFI_SSID on $IFACE"
systemctl stop network-manager
sleep 5
# remove an avahi service which isn't used
if [ -f /etc/avahi/services/udisks.service ]; then
sudo rm /etc/avahi/services/udisks.service
fi
# Might have to re-enable wifi
rfkill unblock $(rfkill list|awk -F: "/phy/ {print $1}") || true
ifconfig $IFACE down
ifconfig $IFACE mtu 1532
iwconfig $IFACE enc off
iwconfig $IFACE mode ad-hoc essid $WIFI_SSID channel $CHANNEL
sleep 1
iwconfig $IFACE ap $CELLID
modprobe batman-adv
batctl if add $IFACE
ifconfig $IFACE up
avahi-autoipd --force-bind --daemonize --wait $BRIDGE
avahi-autoipd --force-bind --daemonize --wait $IFACE
ifconfig bat0 up promisc
#Use persistent HWAddr
ether_new=$(ifconfig eth0 | grep HWaddr | sed -e "s/.*HWaddr //")
if [ ! -f /var/lib/mesh-node/bat0 ]; then
mkdir /var/lib/mesh-node
echo "${ether_new}" > /var/lib/mesh-node/bat0
else
ether=$(cat /var/lib/mesh-node/bat0)
ifconfig bat0 hw ether ${ether}
fi
if [ "$EIFACE" ] ; then
brctl addbr $BRIDGE
brctl addif $BRIDGE bat0
brctl addif $BRIDGE $EIFACE
ifconfig bat0 0.0.0.0
ifconfig $EIFACE 0.0.0.0
ifconfig $EIFACE up promisc
ifconfig $BRIDGE up
fi
iptables -A INPUT -p tcp --dport 548 -j ACCEPT
iptables -A INPUT -p udp --dport 548 -j ACCEPT
iptables -A INPUT -p tcp --dport 5353 -j ACCEPT
iptables -A INPUT -p udp --dport 5353 -j ACCEPT
iptables -A INPUT -p tcp --dport 5354 -j ACCEPT
iptables -A INPUT -p udp --dport 5354 -j ACCEPT
iptables -A INPUT -p tcp --dport $ZERONET_PORT -j ACCEPT
iptables -A INPUT -p udp --dport $ZERONET_PORT -j ACCEPT
iptables -A INPUT -p tcp --dport $IPFS_PORT -j ACCEPT
systemctl restart avahi-daemon
verify
}
if ! grep -q "$IFACE" /proc/net/dev; then
echo 'Interface $IFACE was not found'
stop
exit 1
fi
case "$1" in
start|stop|status)
$1
;;
restart)
stop
sleep 10
start
;;
ping)
batctl ping $2
;;
ls|list)
avahi-browse -atl
;;
*)
echo "error: invalid parameter $1"
echo 'usage: $0 {start|stop|restart|status|ping|ls|list}'
exit 2
;;
esac
exit 0