![]() ![]() ![]() How can I extract the WLAN management frame in a proper way? (On the command line/programatically - using Bash, Python, etc.).Nobody wants code that's highly dependent on the human-centric output of other people's programs. Obviously, this is a rather hacky way of accomplishing what I want and there must be a better way. To extract the raw bytes, I can simply pipe this output into grep, sed, and xxd: $ tcpdump -r capture.pcap -c 1 -x | grep "0x00" | sed 's/0x]*:]*//g' | xxd -r -p > rawbytefile Additionally, I was only able to do it for a single probe request, not for all probe requests in the *.pcap file.Īs mentioned above, I was able to get the desired bytes as ASCII on stdout: $ tcpdump -r capture.pcap -c 1 -x While I was able to get the desired bytes as ASCII on stdout using tcpdump, I wasn't able to save them to a file or into a variable. However, none of these tools seem to allow me to extract the WLAN management frame and nothing more. I came across tools like tshark, tcpdump, capedit, etc. I need to automate this task programatically. ![]() If I select "RAW" as the file format, Wireshark gives me exactly what I want: A file containing nothing more than the selected bytes. In Wireshark, I can simply right-click the management frame and select "Export Packet Bytes.": My goal is to extract the WLAN management frame of each probe request as raw bytes (that is, no headers and no extra information - only the raw bytes like they were originally captured). ![]() I have a *.pcap file with many WLAN probe requests. ![]()
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