mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-11-11 01:55:38 +08:00
142 lines
3.5 KiB
Lua
142 lines
3.5 KiB
Lua
-- The getopt-functionality is loaded from pm3/getopt.lua
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-- Have a look there for further details
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getopt = require('getopt')
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bin = require('bin')
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copyright = ''
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author = 'Martin Holst Swende'
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version = 'v1.0.1'
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desc = [[
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This script takes a dumpfile from 'hf mf dump' and converts it to a format that can be used
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by the emulator
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]]
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example = [[
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script run dumptoemul -i dumpdata-foobar.bin
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]]
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usage = [[
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_script run dumptoemul [-i <file>] [-o <file>]
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Arguments:
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-h This help
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-i <file> Specifies the dump-file (input). If omitted, 'dumpdata.bin' is used
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-o <filename> Specifies the output file. If omitted, <uid>.eml is used.
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]]
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local DEBUG = false
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-------------------------------
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-- Some utilities
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-------------------------------
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---
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-- A debug printout-function
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local function dbg(args)
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if not DEBUG then return end
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if type(args) == 'table' then
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local i = 1
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while result[i] do
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dbg(result[i])
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i = i+1
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end
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else
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print('###', args)
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end
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end
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---
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-- This is only meant to be used when errors occur
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local function oops(err)
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print('ERROR:', err)
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core.clearCommandBuffer()
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return nil, err
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end
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---
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-- Usage help
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function help()
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print(copyright)
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print(author)
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print(version)
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print(desc)
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print('Example usage')
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print(example)
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print(usage)
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end
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local function convert_to_ascii(hexdata)
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if string.len(hexdata) % 32 ~= 0 then
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return oops(('Bad data, length should be a multiple of 32 (was %d)'):format(string.len(hexdata)))
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end
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local js,i = '[';
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for i = 1, string.len(hexdata),32 do
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js = js .."'" ..string.sub(hexdata,i,i+31).."',\n"
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end
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js = js .. ']'
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return js
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end
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local function readdump(infile)
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t = infile:read('*all')
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len = string.len(t)
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local len,hex = bin.unpack(('H%d'):format(len),t)
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return hex
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end
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local function convert_to_emulform(hexdata)
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if string.len(hexdata) % 32 ~= 0 then
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return oops(('Bad data, length should be a multiple of 32 (was %d)'):format(string.len(hexdata)))
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end
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local ascii,i = '';
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for i = 1, string.len(hexdata),32 do
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ascii = ascii..string.sub(hexdata,i,i+31)..'\n'
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end
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return string.sub(ascii, 1, -2)
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end
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local function main(args)
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local input = 'dumpdata.bin'
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local output
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for o, a in getopt.getopt(args, 'i:o:h') do
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if o == 'h' then return help() end
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if o == 'i' then input = a end
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if o == 'o' then output = a end
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end
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-- Validate the parameters
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local infile = io.open(input, 'rb')
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if infile == nil then
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return oops('Could not read file ', input)
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end
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local dumpdata = readdump(infile)
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-- The hex-data is now in ascii-format,
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if dumpdata == NIL then return oops('Dumpfle not loaded') end
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-- But first, check the uid
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local uid = string.sub(dumpdata, 1, 8)
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output = output or (uid .. '.eml')
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-- Format some linebreaks
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dumpdata = convert_to_emulform(dumpdata)
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if dumpdata == NIL then return oops('Dumpfle not loaded') end
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local outfile = io.open(output, 'w')
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if outfile == nil then
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return oops('Could not write to file ', output)
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end
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outfile:write(dumpdata:lower())
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io.close(outfile)
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print(('Wrote an emulator-dump to the file %s'):format(output))
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end
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--[[
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In the future, we may implement so that scripts are invoked directly
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into a 'main' function, instead of being executed blindly. For future
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compatibility, I have done so, but I invoke my main from here.
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--]]
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main(args)
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