#!/bin/sh
# Netmon Nodewatcher (C) 2010-2012 Freifunk Oldenburg
# License; GPL v3
#Get the configuration from the uci configuration file
#If it does not exists, then get it from a normal bash file with variables.
if [ -f /etc/config/nodewatcher ];then
SCRIPT_VERSION=`uci get nodewatcher.@script[0].version`
SCRIPT_ERROR_LEVEL=`uci get nodewatcher.@script[0].error_level`
SCRIPT_LOGFILE=`uci get nodewatcher.@script[0].logfile`
SCRIPT_DATA_FILE=`uci get nodewatcher.@script[0].data_file`
MESH_INTERFACE=`uci get nodewatcher.@network[0].mesh_interface`
CLIENT_INTERFACES=`uci get nodewatcher.@network[0].client_interfaces`
else
. `dirname $0`/nodewatcher_config
fi
#this method checks id the logfile has bekome too big and deletes the first X lines
delete_log() {
if [ -f $SCRIPT_LOGFILE ]; then
if [ `ls -la $SCRIPT_LOGFILE | awk '{ print $5 }'` -gt "6000" ]; then
sed -i '1,60d' $SCRIPT_LOGFILE
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: Logfile has been made smaller" >> $SCRIPT_LOGFILE
fi
fi
fi
}
#this method generates the crawl data xml file that is beeing fetched by netmon
#and provided by a small local httpd
crawl() {
#Get system data from UCI
if which uci >/dev/null; then
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: UCI is installed, trying to collect extra data from UCI" >> $SCRIPT_LOGFILE
fi
location="`uci get freifunk.contact.location`"
latitude="`uci get system.@system[0].latitude`"
longitude="`uci get system.@system[0].longitude`"
community_essid="`uci get freifunk.community.ssid`"
community_nickname="`uci get freifunk.contact.nickname`"
community_email="`uci get freifunk.contact.mail`"
community_prefix="`uci get freifunk.community.prefix`"
description="`uci get freifunk.contact.note`"
fi
#Get system data from LUA
if which lua >/dev/null; then
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: LUA is installed, trying to collect extra data from LUA" >> $SCRIPT_LOGFILE
fi
luciname=`lua -l luci.version -e 'print(luci.version.luciname)'`
lucversion=`lua -l luci.version -e 'print(luci.version.luciversion)'`
fi
#Get system data from other locations
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: Collecting basic system status data" >> $SCRIPT_LOGFILE
fi
hostname="`cat /proc/sys/kernel/hostname`"
uptime=`cat /proc/uptime | awk '{ print $1 }'`
idletime=`cat /proc/uptime | awk '{ print $2 }'`
memory_total=`cat /proc/meminfo | grep 'MemTotal' | awk '{ print $2 }'`
memory_caching=`cat /proc/meminfo | grep -m 1 'Cached:' | awk '{ print $2 }'`
memory_buffering=`cat /proc/meminfo | grep 'Buffers' | awk '{ print $2 }'`
memory_free=`cat /proc/meminfo | grep 'MemFree' | awk '{ print $2 }'`
cpu=`grep -m 1 "cpu model" /proc/cpuinfo | cut -d ":" -f 2`
if [ -n $cpu ]; then
cpu=`grep -m 1 "model name" /proc/cpuinfo | cut -d ":" -f 2`
fi
chipset=`grep -m 1 "system type" /proc/cpuinfo | cut -d ":" -f 2`
local_time="`date +%s`"
processes=`cat /proc/loadavg | awk '{ print $4 }'`
loadavg=`cat /proc/loadavg | awk '{ print $1 }'`
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: Collecting version information" >> $SCRIPT_LOGFILE
fi
if which batctl >/dev/null; then
batctl_adv_version=`batctl -v | awk '{ print $2 }'`
batman_adv_version=`batctl o -n|head -n1|awk '{ print $3 }'|sed 's/,//'`
fi
kernel_version=`uname -r`
nodewatcher_version=$SCRIPT_VERSION
openwrt_version_file="/etc/openwrt_release"
if [ -f $openwrt_version_file ]; then
. $openwrt_version_file
distname=$DISTRIB_ID
distversion=$DISTRIB_RELEASE
fi
firmware_version_file="/etc/firmware_release"
if [ -f $firmware_version_file ]; then
. $firmware_version_file
fi
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: Collecting information from network interfaces" >> $SCRIPT_LOGFILE
fi
#Get interfaces
IFACES=`cat /proc/net/dev | awk -F: '!/\|/ { gsub(/[[:space:]]*/, "", $1); split($2, a, " "); printf("%s=%s=%s ", $1, a[1], a[9]) }'`
interface_data=""
#Loop interfaces
for entry in $IFACES; do
iface=`echo $entry | cut -d '=' -f 1`
rcv=`echo $entry | cut -d '=' -f 2`
xmt=`echo $entry | cut -d '=' -f 3`
wlan_mode=""
wlan_bssid=""
wlan_essid=""
wlan_frequency=""
wlan_tx_power=""
if [ "$iface" != "lo" ]; then
if [ "`ifconfig ${iface} | grep UP`" != "" ]; then
#Get interface data
name="${iface}"
mac_addr="`ifconfig ${iface} | grep 'HWaddr' | awk '{ print $5}'`"
ipv4_addr="`ifconfig ${iface} | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}'`"
ipv6_addr="`ifconfig ${iface} | grep 'inet6 addr:' | grep 'Scope:Global' | awk '{ print $3}'`"
ipv6_link_local_addr="`ifconfig ${iface} | grep 'inet6 addr:' | grep 'Scope:Link' | awk '{ print $3}'`"
mtu="`ifconfig ${iface} | grep 'MTU' | cut -d: -f2 | awk '{ print $1}'`"
traffic_rx="$rcv"
traffic_tx="$xmt"
interface_data=$interface_data"<$name>$name$mac_addr$ipv4_addr$ipv6_addr$ipv6_link_local_addr$traffic_rx$traffic_tx$mtu"
if [ "`iwconfig ${iface} 2>/dev/null | grep Frequency | awk '{ print $2 }' | cut -d ':' -f 2`" != "" ]; then
wlan_mode="`iwconfig ${iface} 2>/dev/null | grep 'Mode' | awk '{ print $1 }' | cut -d ':' -f 2`"
if [ $wlan_mode = "Master" ]; then
wlan_bssid="`iwconfig ${iface} 2>/dev/null | grep 'Access Point' | awk '{ print $6 }'`"
elif [ $wlan_mode = "Ad-Hoc" ]; then
wlan_bssid="`iwconfig ${iface} 2>/dev/null | grep Cell | awk '{ print $5 }'`"
fi
wlan_essid="`iwconfig ${iface} 2>/dev/null | grep ESSID | awk '{ split($4, a, \"\\"\"); printf(\"%s\", a[2]); }'`"
wlan_frequency="`iwconfig ${iface} 2>/dev/null | grep Frequency | awk '{ print $2 }' | cut -d ':' -f 2`"
wlan_tx_power="`iwconfig ${iface} 2>/dev/null | grep 'Tx-Power' | awk '{ print $4 }' | cut -d ':' -f 2`"
interface_data=$interface_data"$wlan_mode$wlan_frequency$wlan_essid$wlan_bssid$wlan_tx_power"
fi
interface_data=$interface_data""
fi
fi
done
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: Collecting information from batman advanced and it´s interfaces" >> $SCRIPT_LOGFILE
fi
#B.A.T.M.A.N. advanced
if which batctl >/dev/null; then
batman_check_running=`batctl if | grep 'Error'`
if [ "$batman_check_running" == "" ]; then
has_active_interface="0"
BAT_ADV_IFACES=`batctl if | awk '{ print $1 }' | cut -d ':' -f 1`
for device_name in $BAT_ADV_IFACES; do
if [ "`batctl if | grep $device_name | grep active`" != "" ]; then
status='active'
has_active_interface="1"
else
status='inactive'
fi
BATMAN_ADV_INTERFACES=$BATMAN_ADV_INTERFACES"<$device_name>$device_name$status"
done
if [ $has_active_interface = "1" ]; then
BAT_ADV_ORIGINATORS=`batctl o -n | grep 'No batman nodes in range'`
if [ "$BAT_ADV_ORIGINATORS" == "" ]; then
OLDIFS=$IFS
IFS="
"
BAT_ADV_ORIGINATORS=`batctl o -n | awk '/O/ {next} /B/ {next} {print}'`
count=0;
for row in $BAT_ADV_ORIGINATORS; do
row="${row//[\(\)]/}"
originator=`echo $row | awk '{print $1}'`
last_seen=`echo $row | awk '{print $2}'`
last_seen="${last_seen//s/}"
link_quality=`echo $row | awk '{print $3}'`
outgoing_interface=`echo $row | awk '{print $6}'`
outgoing_interface="${outgoing_interface//]:/}"
nexthop=`echo $row | awk '{print $4}'`
batman_adv_originators=$batman_adv_originators"$originator$link_quality$nexthop$last_seen$outgoing_interface"
count=`expr $count + 1`
done
IFS=$OLDIFS
fi
fi
fi
fi
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: Collecting information about conected clients" >> $SCRIPT_LOGFILE
fi
#CLIENTS
SEDDEV=`brctl showstp $MESH_INTERFACE | egrep '\([0-9]\)' | sed -e "s/(//;s/)//" | awk '{ print "s/^ "$2"/"$1"/;" }'`
for entry in $CLIENT_INTERFACES; do
CLIENT_MACS=$CLIENT_MACS`brctl showmacs $MESH_INTERFACE | sed -e "$SEDDEV" | awk '{if ($3 != "yes" && $1 == "'"$entry"'") print $2}'`" "
done
i=0
for client in $CLIENT_MACS; do
i=`expr $i + 1` #Zähler um eins erhöhen
done
client_count=$i
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: Putting all information into a XML-File and save it at "$SCRIPT_DATA_FILE >> $SCRIPT_LOGFILE
fi
SYSTEM_DATA="online$hostname$description$location$latitude$longitude$luciname$luciversion$distname$distversion$chipset$cpu$memory_total$memory_caching$memory_buffering$memory_free$loadavg$processes$uptime$idletime$local_time$community_essid$community_nickname$community_email$community_prefix$batman_adv_version$kernel_version$nodewatcher_version$FIRMWARE_VERSION$FIRMWARE_REVISION$OPENWRT_CORE_REVISION$OPENWRT_FEEDS_PACKAGES_REVISION"
DATA="$SYSTEM_DATA$interface_data$BATMAN_ADV_INTERFACES$batman_adv_originators$client_count"
#write data to hxml file that provides the data on httpd
echo $DATA > $SCRIPT_DATA_FILE
}
LANG=C
#Prüft ob das logfile zu groß geworden ist
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: Check logfile" >> $SCRIPT_LOGFILE
fi
delete_log
#Erzeugt die statusdaten
if [ $SCRIPT_ERROR_LEVEL -gt "1" ]; then
echo "`date`: Generate actual status data" >> $SCRIPT_LOGFILE
fi
crawl
exit 0