diff --git a/files/lib/gluon/ssid-changer/ssid-changer.sh b/files/lib/gluon/ssid-changer/ssid-changer.sh index 85e2ffc29cf7cb72a2a14ffa75f1787ac4c1e947..18036a695e7a43d6ccc460d1f0aa68d3c355e3c5 100755 --- a/files/lib/gluon/ssid-changer/ssid-changer.sh +++ b/files/lib/gluon/ssid-changer/ssid-changer.sh @@ -1,87 +1,19 @@ #!/bin/sh -# At first some Definitions: - -ONLINE_SSID=$(uci get wireless.client_radio0.ssid -q) -: ${ONLINE_SSID:=FREIFUNK} # if for whatever reason ONLINE_SSID is NULL -OFFLINE_PREFIX='FF_OFFLINE_' # Use something short to leave space for the nodename - -UPPER_LIMIT='30' #Above this limit the online SSID will be used -LOWER_LIMIT='20' #Below this limit the offline SSID will be used -# In-between these two values the SSID will never be changed to preven it from toggeling every Minute. - -# Generate an Offline SSID with the first and last Part of the nodename to allow owner to recognise wich node is down -NODENAME=`uname -n` -if [ ${#NODENAME} -gt $((30 - ${#OFFLINE_PREFIX})) ] ; then #32 would be possible as well - HALF=$(( (28 - ${#OFFLINE_PREFIX} ) / 2 )) #calculate the length of the first part of the node identifier in the offline-ssid - SKIP=$(( ${#NODENAME} - $HALF )) #jump to this charakter for the last part of the name - OFFLINE_SSID=$OFFLINE_PREFIX${NODENAME:0:$HALF}...${NODENAME:$SKIP:${#NODENAME}} # use the first and last part of the nodename for nodes with long name -else - OFFLINE_SSID="$OFFLINE_PREFIX$NODENAME" #greate we are able to use the full nodename in the offline ssid +# maximum simplyfied, no more ttvn rating +check=$(batctl -H|wc -l) +name=$(nodename status|tail -c 21) +OFFLINE_PREFIX="FF_OFFLINE_" +default="freiburg.freifunk.net" +offi="$offline$name" + +if [ $check -eq 0 ] ; then + if [ $(uci get wireless.client_radio0.ssid) -eq "$offi" ] ; then exit 0 ; fi + uci set wireless.client_radio0.ssid='$OFFLINE_PREFIX$name' + killall -HUP hostapd fi - -#Is there an active Gateway? -GATEWAY_TQ=`batctl gwl | grep "^=>" | awk -F'[()]' '{print $2}'| tr -d " "` #Grep the Connection Quality of the Gateway which is currently used - -if [ ! $GATEWAY_TQ ]; #If there is no gateway there will be errors in the following if clauses -then - GATEWAY_TQ=0 #Just an easy way to get an valid value if there is no gatway -fi - -if [ $GATEWAY_TQ -gt $UPPER_LIMIT ]; -then - echo "Gateway TQ is $GATEWAY_TQ node is online" - for HOSTAPD in $(ls /var/run/hostapd-phy*); do #Check status for all physical devices - CURRENT_SSID=`grep "^ssid=$ONLINE_SSID" $HOSTAPD | cut -d"=" -f2` - if [ $CURRENT_SSID == $ONLINE_SSID ] - then - echo "SSID $CURRENT_SSID is correct, noting to do" - HUP_NEEDED=0 - break - fi - CURRENT_SSID=`grep "^ssid=$OFFLINE_SSID" $HOSTAPD | cut -d"=" -f2` - if [ $CURRENT_SSID == $OFFLINE_SSID ] - then - logger -s -t "gluon-offline-ssid" -p 5 "TQ is $GATEWAY_TQ, SSID is $CURRENT_SSID, change to $ONLINE_SSID" #Write Info to Syslog - sed -i s/^ssid=$CURRENT_SSID/ssid=$ONLINE_SSID/ $HOSTAPD - HUP_NEEDED=1 # HUP here would be to early for dualband devices - else - echo "There is something wrong, did not find SSID $ONLINE_SSID or $OFFLINE_SSID" - fi - done -fi - -if [ $GATEWAY_TQ -lt $LOWER_LIMIT ]; -then - echo "Gateway TQ is $GATEWAY_TQ node is considered offline" - for HOSTAPD in $(ls /var/run/hostapd-phy*); do #Check status for all physical devices - CURRENT_SSID=`grep "^ssid=$OFFLINE_SSID" $HOSTAPD | cut -d"=" -f2` - if [ $CURRENT_SSID == $OFFLINE_SSID ] - then - echo "SSID $CURRENT_SSID is correct, noting to do" - HUP_NEEDED=0 - break - fi - CURRENT_SSID=`grep "^ssid=$ONLINE_SSID" $HOSTAPD | cut -d"=" -f2` - if [ $CURRENT_SSID == $ONLINE_SSID ] - then - logger -s -t "gluon-offline-ssid" -p 5 "TQ is $GATEWAY_TQ, SSID is $CURRENT_SSID, change to $OFFLINE_SSID" #Write Info to Syslog - sed -i s/^ssid=$ONLINE_SSID/ssid=$OFFLINE_SSID/ $HOSTAPD - HUP_NEEDED=1 # HUP here would be to early for dualband devices - else - echo "There is something wrong, did not find SSID $ONLINE_SSID or $OFFLINE_SSID" - fi - done -fi - -if [ $GATEWAY_TQ -ge $LOWER_LIMIT -a $GATEWAY_TQ -le $UPPER_LIMIT ]; #This is just get a clean run if we are in-between the grace periode -then - echo "TQ is $GATEWAY_TQ, do nothing" - HUP_NEEDED=0 -fi - -if [ $HUP_NEEDED == 1 ]; then - killall -HUP hostapd # Send HUP to all hostapd um die neue SSID zu laden - HUP_NEEDED=0 - echo "HUP!" +if [ $check -gt 0 ] ; then + if [ $(uci get wireless.client_radio0.ssid) -eq "$default" ] ; then exit 0 ; fi + wireless.client_radio0.ssid='freiburg.freifunk.net' + killall -HUP hostapd fi