forked from freifunk-franken/firmware
51 lines
1.7 KiB
Bash
Executable File
51 lines
1.7 KiB
Bash
Executable File
#!/bin/ash
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# config
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STATSDIR="/tmp/statistics"
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get_trafficdata() {
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cat /proc/net/dev | tail -n +3 | tr ":" " " | sed -e 's/^[ ]\+//g' | tr -s " " | cut -d" " -f 1,2,3,10,11 || return 1
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}
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update_traffic() {
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local TIME=$(date +%s)
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local DATA=$(get_trafficdata)
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local DATATMP=
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local REFERENCE=
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local REFERENCETMP=
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local REFERENCE_TIME=
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local DELTA=
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local DEVICES=
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if [ -f "$STATSDIR/traffic_reference_time" ] && [ -f "$STATSDIR/traffic_reference" ]; then
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REFERENCE_TIME=$(cat "$STATSDIR/traffic_reference_time")
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REFERENCE=$(cat "$STATSDIR/traffic_reference")
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fi
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if [ -n "$TIME" ] && [ -n "$REFERENCE_TIME" ]; then
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DELTA=$(($TIME-$REFERENCE_TIME))
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fi
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if [ -n "$DATA" ] && [ -n "$REFERENCE" ] && [ -n "$DELTA" ]; then
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echo "#device rx[b/s] rx[p/s] tx[b/s] tx[p/s]" > "$STATSDIR/traffic.tmp"
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DEVICES=$(echo "$DATA" | cut -d" " -f1 | sort -u) || return 1
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echo "$DEVICES" | while read DEVICE; do
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if [ -n "$DEVICE" ]
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then
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DATATMP=$(echo "$DATA" | grep "^$DEVICE " | cut -d" " -f 2- | tr "\n" " ") || return 1
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REFERENCETMP=$(echo "$REFERENCE" | grep "^$DEVICE " | cut -d" " -f 2- | tr "\n" " ") || return 1
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echo "$DEVICE $DATATMP $REFERENCETMP" | tr -s " " | awk -F" " -v DELTA=$DELTA '{printf "%s %.0f %.0f %.0f %.0f\n",$1,($2-$6)/DELTA,($3-$7)/DELTA,($4-$8)/DELTA,($5-$9)/DELTA}' >> "$STATSDIR/traffic.tmp" || return 1
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fi
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done
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mv "$STATSDIR/traffic.tmp" "$STATSDIR/traffic"
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fi
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echo "$DATA" > "$STATSDIR/traffic_reference"
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echo "$TIME" > "$STATSDIR/traffic_reference_time"
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}
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# secure dot-scripts
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[ -e "$STATSDIR" ] || mkdir -p "$STATSDIR"
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[ -d "$STATSDIR" ] || exit 1
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chown -R root "$STATSDIR"
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chmod -R 700 "$STATSDIR"
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# update values
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update_traffic
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