I modified the code to check for both 'Radar detected' and 'wl_chanspec_changed_action' and use the timestamp of the most current. I haven't run this through extensive testing yet but so far haven't seen any issues.
Bash:
#Check log for 'Radar detected' and 'wl_chanspec_changed_action' before wifi is taken Up/Down.
lastRadarFoundLine="$(grep "Radar detected" /tmp/syslog.log | tail -1)"
lastChanChangeLine="$(grep "wl_chanspec_changed_action" /tmp/syslog.log | tail -1)"
if [ "$restart5ghz1" = "true" ]; then
logger -st ChannelHog "[*] $currentbandwidth Channel Width Detected - Restarting ${restartradio} Radio"
wl -i "$port5ghz1" down
wl -i "$port5ghz1" up
fi
if [ "$restart5ghz2" = "true" ]; then
logger -st ChannelHog "[*] $currentbandwidth Channel Width Detected - Restarting ${restartradio} Radio"
wl -i "$port5ghz2" down
wl -i "$port5ghz2" up
fi
#After down/up event
#Get targeted and current WIFI channel
#Currently only checks $port5ghz1.
targetChanSpec="$(nvram get wl1_chanspec)"
targetChan=${targetChanSpec%/*}
currentChanSpec="$(wl -i $port5ghz1 chanspec | awk '{print $1}')"
currentChan=${currentChanSpec%/*}
#Nested Function to get event time from log file
Get_ChanChange_Time () {
local lastEventFoundLine="$1"
if [ ! -z "$lastEventFoundLine" ]; then
#Parse date from last event detected log line
local lastEventFoundY="$(date +"%Y")"
local lastEventFoundM="$(echo $lastEventFoundLine | awk '{print $1}')"
case $lastEventFoundM in
Jan) MON="01" ;;
Feb) MON="02" ;;
Mar) MON="03" ;;
Apr) MON="04" ;;
May) MON="05" ;;
Jun) MON="06" ;;
Jul) MON="07" ;;
Aug) MON="08" ;;
Sep) MON="09" ;;
Oct) MON="10" ;;
Nov) MON="11" ;;
Dec) MON="12" ;;
esac
local lastEventFoundM=$MON
local lastEventFoundD="$(echo $lastEventFoundLine | awk '{print $2}')"
local lastEventFoundT="$(echo $lastEventFoundLine | awk '{print $3}')"
local lastEventFoundCombined="$(date +%s -d "$(echo $lastEventFoundY"."$lastEventFoundM"."$lastEventFoundD"-"$lastEventFoundT)")"
#No year is listed in log so apply current year as a work-around. If combined found date is greater than current date then change year to previous year.
local currentTime=$(date +%s)
if [ "$lastEventFoundCombined" -gt "$currentTime" ]; then
local lastEventFoundPY=$((lastEventFoundY-1))
local lastEventFoundCombinedPY="$(date +%s -d "$(echo $lastEventFoundPY"."$lastEventFoundM"."$lastEventFoundD"-"$lastEventFoundT)")"
local lastEventFoundCombined=$lastEventFoundCombinedPY
fi
echo "$lastEventFoundCombined"
fi
}
#Compare if current channel differs from target channel
if [ "$targetChan" != "0" ] && [ "$currentChan" != "$targetChan" ]; then
#Select most current event
if [ ! -z "$lastRadarFoundLine" ]; then
lastRadarFoundCombined=$(Get_ChanChange_Time "$lastRadarFoundLine")
else
lastRadarFoundCombined="0"
fi
if [ ! -z "$lastChanChangeLine" ]; then
lastCCFoundCombined=$(Get_ChanChange_Time "$lastChanChangeLine")
else
lastCCFoundCombined="0"
fi
if [ "$lastRadarFoundCombined" -eq "0" ] && [ "$lastCCFoundCombined" -eq "0" ]; then
lastEventTime=""
elif [ "$lastRadarFoundCombined" -ge "$lastCCFoundCombined" ]; then
lastEventTime=$lastRadarFoundCombined
elif [ "$lastRadarFoundCombined" -lt "$lastCCFoundCombined" ]; then
lastEventTime=$lastCCFoundCombined
fi
if [ ! -z "$lastEventTime" ]; then
#Restart wireless if greater than 30 minutes from last radar detection or channel change event
currentTime30M=$(date +%s -d@"$(( `date +%s`-30*60))")
if [ "$lastEventTime" -ge "$currentTime30M" ]; then
logger -st ChannelHog "[*] Channel (${currentChan}) can't switch back yet as still in Non-Occupancy Period."
else
logger -st ChannelHog "[*] Channel has changed from ${targetChan} to ${currentChan}. Restarting WiFi."
service restart_wireless
fi
fi
fi
Last edited:
