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Commit 995190da authored by rubo77's avatar rubo77
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Read all options from config and add option to use mac as offline suffix instead of nodename

parent 9cd44be8
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#!/bin/sh
MINUTES=1440 # only once every timeframe the SSID will change to OFFLINE (set to 1 minute to change every time the router gets offline)
FIRST=5 # the first few minutes directly after reboot within which an Offline-SSID always may be activated
OFFLINE_PREFIX='FF_OFFLINE_' # use something short to leave space for the nodename (no '~' allowed!)
# only once every timeframe the SSID will change to OFFLINE (set to 1 minute to change every time the router gets offline)
MINUTES="$(uci get ssid-changer.settings.switch_timeframe -q)"
# the first few minutes directly after reboot within which an Offline-SSID always may be activated
: ${MINUTES:=1}
FIRST="$(uci get ssid-changer.settings.first -q)"
# use something short to leave space for the nodename (no '~' allowed!)
: ${FIRST:=5}
PREFIX="$(uci get ssid-changer.settings.prefix -q)"
# generate the ssid with either 'nodename', 'mac' or to use only the prefix: 'none'
: ${PREFIX:='FF_OFFLINE_'}
if [ "$(uci get ssid-changer.settings.enabled -q)" = '0' ]; then
DISABLED='1'
......@@ -10,20 +19,28 @@ else
DISABLED='0'
fi
ONLINE_SSID="$(uci get wireless.client_radio0.ssid -q)"
: ${ONLINE_SSID:="FREIFUNK"} # if for whatever reason ONLINE_SSID is NULL
SETTINGS_SUFFIX="$(uci get ssid-changer.settings.suffix -q)"
# 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" # great! we are able to use the full nodename in the offline ssid
if [ $SETTINGS_SUFFIX = 'nodename' ]; then
SUFFIX="$(uname -n)"
if [ ${#SUFFIX} -gt $((30 - ${#PREFIX})) ]; then # 32 would be possible as well
HALF=$(( (28 - ${#PREFIX} ) / 2 )) # calculate the length of the first part of the node identifier in the offline-ssid
SKIP=$(( ${#SUFFIX} - $HALF )) # jump to this charakter for the last part of the name
SUFFIX=${SUFFIX:0:$HALF}...${SUFFIX:$SKIP:${#SUFFIX}} # use the first and last part of the nodename for nodes with long name
fi
elif [ $SETTINGS_SUFFIX = 'mac' ]; then
SUFFIX="$(uci get network.bat0.macaddr -q)"
else # 'none'
SUFFIX=''
fi
# maximum simplified, no more ttvn rating
OFFLINE_SSID="$PREFIX$SUFFIX"
# TODO: ffac tq limits has to be implemented here if enabled
ONLINE_SSID="$(uci get wireless.client_radio0.ssid -q)"
: ${ONLINE_SSID:="FREIFUNK"} # if for whatever reason ONLINE_SSID is NULL
CHECK="$(batctl gwl -H|grep -v "gateways in range"|wc -l)"
HUP_NEEDED=0
if [ "$CHECK" -gt 0 ] || [ "$DISABLED" = '1' ]; then
......@@ -37,11 +54,11 @@ if [ "$CHECK" -gt 0 ] || [ "$DISABLED" = '1' ]; then
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 "SSID is $CURRENT_SSID, change to $ONLINE_SSID"
logger -s -t "gluon-ssid-changer" -p 5 "SSID is $CURRENT_SSID, change to $ONLINE_SSID"
sed -i "s~^ssid=$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 $OFFLINE_SSID"
logger -s -t "gluon-ssid-changer" -p 5 "could not set to online state: did neither find SSID '$ONLINE_SSID' nor '$OFFLINE_SSID'. Please reboot"
fi
done
elif [ "$CHECK" -eq 0 ]; then
......@@ -56,11 +73,11 @@ elif [ "$CHECK" -eq 0 ]; then
fi
CURRENT_SSID="$(grep "^ssid=$ONLINE_SSID" $HOSTAPD | cut -d"=" -f2)"
if [ "$CURRENT_SSID" = "$ONLINE_SSID" ]; then
logger -s -t "gluon-offline-ssid" -p 5 "SSID is $CURRENT_SSID, change to $OFFLINE_SSID"
logger -s -t "gluon-ssid-changer" -p 5 "SSID is $CURRENT_SSID, change to $OFFLINE_SSID"
sed -i "s~^ssid=$ONLINE_SSID~ssid=$OFFLINE_SSID~" $HOSTAPD
HUP_NEEDED=1
else
echo "There is something wrong: did neither find SSID '$ONLINE_SSID' nor '$OFFLINE_SSID'"
logger -s -t "gluon-ssid-changer" -p 5 "could not set to offline state: did neither find SSID '$ONLINE_SSID' nor '$OFFLINE_SSID'. Please reboot"
fi
done
fi
......
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