rjmcmahon
/
fiwi_monitor
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Show capture statistics immediately after capture completes 

- Display stats right after 'Capturing packets' line completes
- Show packet count, PLCP count, and packet rate immediately
- Move sample packets display after stats
- Reorganize output for better readability

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Robert McMahon 2026-02-13 13:54:11 -08:00
parent b80a9d818b
commit fb7dca0137
1 changed files with 30 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
test_monitor_tshark.sh
View File

@ -118,6 +118,8 @@ echo ""
# Capture for specified duration and count packets # Capture for specified duration and count packets
echo "Capturing packets for $DURATION seconds..." echo "Capturing packets for $DURATION seconds..."
# Run capture in background and show progress
CAPTURE_OUTPUT=$(timeout "$DURATION" tshark -i "$INTERFACE" -n -T fields \ CAPTURE_OUTPUT=$(timeout "$DURATION" tshark -i "$INTERFACE" -n -T fields \
-e frame.number \ -e frame.number \
-e frame.time \ -e frame.time \
@ -130,32 +132,45 @@ CAPTURE_OUTPUT=$(timeout "$DURATION" tshark -i "$INTERFACE" -n -T fields \
2>&1) 2>&1)
CAPTURE_EXIT_CODE=$? CAPTURE_EXIT_CODE=$?
# Show any warnings/errors # Immediately show stats after capture completes
echo "$CAPTURE_OUTPUT" | grep -E "(tshark:|Warning|Error)" | head -5 || true echo ""
echo "=== Capture Statistics ==="
# Display first 50 lines of packet output # Show any warnings/errors
PACKET_LINES=$(echo "$CAPTURE_OUTPUT" | grep -E '^[0-9]+' || true) WARNINGS=$(echo "$CAPTURE_OUTPUT" | grep -E "(tshark:|Warning|Error)" | head -5 || true)
if [ -n "$PACKET_LINES" ]; then if [ -n "$WARNINGS" ]; then
echo "" echo "$WARNINGS"
echo "Sample packets (first 20):"
echo "$PACKET_LINES" | head -20
else
echo ""
echo "(No packets captured)"
fi fi
# Count total packets captured (lines starting with a number) # Count total packets captured (lines starting with a number)
FINAL_COUNT=$(echo "$CAPTURE_OUTPUT" | grep -E '^[0-9]+' | wc -l || echo "0") PACKET_LINES=$(echo "$CAPTURE_OUTPUT" | grep -E '^[0-9]+' || true)
FINAL_COUNT=$(echo "$PACKET_LINES" | wc -l || echo "0")
# Count packets with PLCP headers (radiotap present) # Count packets with PLCP headers (radiotap present)
# radiotap.present field is the 8th field (after frame.number, frame.time, wlan.sa, wlan.da, wlan.fc.type, wlan.fc.subtype, wlan.fc.type_subtype) # radiotap.present field is the 8th field (after frame.number, frame.time, wlan.sa, wlan.da, wlan.fc.type, wlan.fc.subtype, wlan.fc.type_subtype)
PLCP_COUNT=$(echo "$CAPTURE_OUTPUT" | awk -F'\t' 'NF >= 8 && $1 != "" && $8 != "" && $8 != "0" && $8 != "-" {count++} END {print count+0}' || echo "0") PLCP_COUNT=$(echo "$PACKET_LINES" | awk -F'\t' 'NF >= 8 && $1 != "" && $8 != "" && $8 != "0" && $8 != "-" {count++} END {print count+0}' || echo "0")
echo "" # Display stats immediately
echo "=== Capture complete ==="
echo "Total packets captured: $FINAL_COUNT" echo "Total packets captured: $FINAL_COUNT"
echo "PLCP headers: $PLCP_COUNT" echo "PLCP headers: $PLCP_COUNT"
if [ "$FINAL_COUNT" -gt 0 ]; then
# Calculate rate
RATE=$(awk "BEGIN {printf \"%.1f\", $FINAL_COUNT / $DURATION}")
echo "Packet rate: $RATE packets/second"
fi
echo "" echo ""
# Display sample packets
if [ -n "$PACKET_LINES" ] && [ "$FINAL_COUNT" -gt 0 ]; then
echo "Sample packets (first 20):"
echo "$PACKET_LINES" | head -20
echo ""
else
echo "(No packets captured)"
echo ""
fi
echo "=== Summary ==="
if [ "$FINAL_COUNT" -gt 0 ]; then if [ "$FINAL_COUNT" -gt 0 ]; then
echo "✓ Monitor mode is working! Captured $FINAL_COUNT packet(s)" echo "✓ Monitor mode is working! Captured $FINAL_COUNT packet(s)"
if [ "$PLCP_COUNT" -gt 0 ]; then if [ "$PLCP_COUNT" -gt 0 ]; then