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brainstorm/usb_printer_epson_wireshark_dissector.lua

Created September 3, 2022 14:31
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  1. brainstorm created this gist Sep 3, 2022.
    19 changes: 19 additions & 0 deletions usb_printer_epson_wireshark_dissector.lua
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,19 @@
    usb_printer_epson_protocol = Proto("USB_PRINTER_EPSON", "USB printer EPSON")

    local printjob_payload = ProtoField.none("usb_printer_epson.payload", "Payload", base.HEX)

    usb_printer_epson_protocol.fields = { printjob_payload }

    function usb_printer_epson_protocol.dissector(buffer, pinfo, tree)
    length = buffer:len()
    --- We are only interested on the 16KB BULK transfers as they contain the PDF being sent?
    if length < 10000 then return end

    pinfo.cols.protocol = usb_printer_epson_protocol.name

    local subtree = tree:add(usb_printer_epson_protocol, buffer(), "USB Printer EPSON")

    subtree:add_le(printjob_payload, buffer(0,length))
    end

    DissectorTable.get("usb.bulk"):add(0xffff, usb_printer_epson_protocol)