#!/usr/bin/env python3
import pyshark
import argparse

def analyze_radiotap_info(pcapng_path, limit=100):
    cap = pyshark.FileCapture(
        pcapng_path,
        display_filter='radiotap',
        use_json=True,
        include_raw=False,
        keep_packets=False
    )

    print(f"\nAnalyzing up to {limit} packets for radiotap metadata...\n")

    count = 0
    for packet in cap:
        if not hasattr(packet, 'radiotap'):
            continue

        print(f"Packet #{count + 1}")

        # Grab what you can from radiotap
        signal = getattr(packet.radiotap, 'dbm_antsignal', None)
        noise = getattr(packet.radiotap, 'dbm_antnoise', None)
        channel = getattr(packet.radiotap, 'channel_freq', None)
        rate = getattr(packet.radiotap, 'rate', None)
        antenna = getattr(packet.radiotap, 'antenna', None)
        flags = getattr(packet.radiotap, 'flags', None)

        if signal is not None:
            print(f"  Signal Strength:     {signal} dBm")
        else:
            print("  Signal Strength:     [unavailable]")

        if noise is not None:
            print(f"  Noise Level:         {noise} dBm")
        else:
            print("  Noise Level:         [missing or fake]")

        if channel:
            print(f"  Channel Frequency:   {channel} MHz")
        else: 
            print("  Channel Frequency:   [unavailable]")

        if rate:
            print(f"  Data Rate:           {rate} Mbps")
        else:
            print("  Data Rate:           [unavailable]")

        if antenna:
            print(f"  Antenna Index:       {antenna}")
        if flags:
            print(f"  Radiotap Flags:      {flags}")

        print("-" * 50)
        count += 1
        if count >= limit:
            break

    cap.close()

    if count == 0:
        print("No usable radiotap packets found. Either the capture is cursed or your Panda is just decorative.")

    print(f"\nFinished analyzing {count} packet(s). Radiotap field spelunking complete.\n")

if __name__ == '__main__':
    parser = argparse.ArgumentParser(description="Panda Truth Probe: Radiotap Field Dump")
    parser.add_argument('--pcapng', required=True, help='Path to your .pcapng file')
    parser.add_argument('--limit', type=int, default=50, help='Max number of packets to analyze')
    args = parser.parse_args()

    analyze_radiotap_info(args.pcapng, args.limit)