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Commit	Line	Data
	1	--[[
	2
	3	(example) Legic-Prime Layout with 'Kaba Group Header'
	4	+----+----+----+----+----+----+----+----+
	5	0x00\|MCD \|MSN0\|MSN1\|MSN2\|MCC \| 60 \| ea \| 9f \|
	6	+----+----+----+----+----+----+----+----+
	7	0x08\| ff \| 00 \| 00 \| 00 \| 11 \|Bck0\|Bck1\|Bck2\|
	8	+----+----+----+----+----+----+----+----+
	9	0x10\|Bck3\|Bck4\|Bck5\|BCC \| 00 \| 00 \|Seg0\|Seg1\|
	10	+----+----+----+----+----+----+----+----+
	11	0x18\|Seg2\|Seg3\|SegC\|Stp0\|Stp1\|Stp2\|Stp3\|UID0\|
	12	+----+----+----+----+----+----+----+----+
	13	0x20\|UID1\|UID2\|kghC\|
	14	+----+----+----+
	15	MCD = Manufacturer ID
	16	MSN = Manufacturer SerialNumber
	17	60 ea = DCF Low + DCF high
	18	9f = raw byte which holds the bits for OLE,WRP,WRC,RD
	19	ff = unknown but important
	20	00 = unimportant
	21	11 = unknown but important
	22	Bck = header-backup-area
	23	00 00 = Year (00 = 2000) & Week (not important)
	24	Seg = Segment Header
	25	SegC = Crc8 over the Segment Header
	26	Stp = Stamp (could be more as 4 - up to 7)
	27	UID = dec User-ID for online-Mapping
	28	kghC = crc8 over MCD + MSN0..MSN2 + UID
	29
	30
	31	(example) Legic-Cash on MIM256/1024 tag' (37 bytes)
	32	+----+----+----+----+----+----+----+----+
	33	0x00\|Seg0\|Seg1\|Seg2\|Seg3\|SegC\|STP0\|STP1\|STP2\|
	34	+----+----+----+----+----+----+----+----+
	35	0x08\|STP3\|STP4\|STP5\|STP6\| 01 \|CURh\|CURl\|LIMh\|
	36	+----+----+----+----+----+----+----+----+
	37	0x10\|LIMm\|LIMl\|CHKh\|CHKl\|BALh\|BALm\|BALl\|LRBh\|
	38	+----+----+----+----+----+----+----+----+
	39	0x18\|LRBm\|LRBl\|CHKh\|CHKl\|SHDh\|SHDm\|SHDl\|LRSh\|
	40	+----+----+----+----+----+----+----+----+
	41	0x20\|LRSm\|LRSl\| CV \|CHKh\|CHKl\|
	42	+----+----+----+----+----+
	43	STP = Stamp (seems to be always 7 bytes)
	44	01 = unknown but important
	45	CUR = currency in HEX (ISO 4217)
	46	LIM = Cash-Limit
	47	CHK = crc16 over byte-addr 0x05..0x12
	48	BAL = Balance
	49	LRB = ID of the reader that changed the balance
	50	CHK = crc16 over BAL + LRB
	51	SHD = shadow Balance
	52	LRS = ID of the reader that changed the shadow balance (?? should be always the same as LRB)
	53	CV = Counter value for transactions
	54	CHK = crc16 over SHD + LRS + CV
	55	--]]
	56
	57	example = "script run legic"
	58	author = "Mosci"
	59	version = "1.0.3"
	60
	61	desc =
	62	[[
	63
	64	This script helps you to read, create and modify Legic Prime Tags (MIM22, MIM256, MIM1024)
	65	it's kinda interactive with following commands in three categories:
	66
	67	Data I/O Segment Manipulation Token-Data
	68	----------------- -------------------- -----------------
	69	rt => read Tag as => add Segment mt => make Token
	70	wt => write Tag es => edit Segment Header et => edit Token data
	71	ed => edit Segment Data tk => toggle KGH-Flag
	72	File I/O rs => remove Segment
	73	----------------- cc => check Segment-CRC
	74	lf => load File ck => check KGH
	75	sf => save File ds => dump Segments
	76	xf => xor to File
	77
	78
	79	(partially) known Segments Virtual Tags Script Output
	80	--------------------------- ------------------------------- ------------------------
	81	dlc => dump Legic-Cash ct => copy mainTag to backupTag tac => toggle ansicolors
	82	elc => edit Legic-Cash tc => copy backupTag to mainTag
	83	d3p => dump 3rd-Party-Cash tt => switch mainTag & backupTag
	84	e3p => edit 3rd-Party-Cash di => dump mainTag
	85	do => dump backupTag
	86
	87
	88
	89	rt: 'read tag' - reads a tag placed near to the PM3
	90	wt: 'write tag' - writes the content of the 'virtual inTag' to a tag placed near to th PM3
	91	without the need of changing anything - MCD,MSN,MCC will be read from the tag
	92	before and applied to the output.
	93
	94	lf: 'load file' - load a (xored) file from the local Filesystem into the 'virtual inTag'
	95	sf: 'save file' - saves the 'virtual inTag' to the local Filesystem (xored with Tag-MCC)
	96	xf: 'xor file' - saves the 'virtual inTag' to the local Filesystem (xored with choosen MCC - use '00' for plain values)
	97
	98	ct: 'copy tag' - copy the 'virtual Tag' to a second 'virtual TAG' - not usefull yet, but inernally needed
	99	tc: 'copy tag' - copy the 'second virtual Tag' to 'virtual TAG' - not usefull yet, but inernally needed
	100	tt: 'toggle tag' - copy mainTag to BackupTag and backupTag to mainTag
	101
	102	di: 'dump mainTag' - shows the current content of the 'virtual Tag'
	103	do: 'dump backupTag' - shows the current content of the 'virtual outTag'
	104	ds: 'dump Segments' - will show the content of a selected Segment
	105	as: 'add Segment' - will add a 'empty' Segment to the inTag
	106	es: 'edit Segment' - edit the Segment-Header of a selected Segment (len, WRP, WRC, RD, valid)
	107	all other Segment-Header-Values are either calculated or not needed to edit (yet)
	108	ed: 'edit data' - edit the Data of a Segment (ADF-Aera / Stamp & Payload specific Data)
	109	et: 'edit Token' - edit Data of a Token (CDF-Area / SAM, SAM64, SAM63, IAM, GAM specific Data)
	110	mt: 'make Token' - create a Token 'from scratch' (guided)
	111	rs: 'remove segment' - removes a Segment (except Segment 00, but this can be set to valid=0 for Master-Token)
	112	cc: 'check Segment-CRC'- checks & calculates (if check failed) the Segment-CRC of all Segments
	113	ck: 'check KGH-CRC' - checks the and calculates a 'Kaba Group Header' if one was detected
	114	'Kaba Group Header CRC calculation'
	115	tk: 'toggle KGH' - toglle the (script-internal) flag for kgh-calculation for a segment
	116	xc: 'etra c' - show string that was used to calculate the kgh-crc of a segment
	117
	118	dlc: 'dump Legic-Cash' - show balance and checksums of a Legic-Cash Segment
	119	elc: 'edit Legic-Cash' - edit values of a Legic-Cash Segment
	120
	121	d3p: 'dump 3rd Party' - show balance, history and checksums of a (yet) unknown 3rd-Party Cash Segment
	122	e3p: 'edit 3rd Party' - edit Data in 3rd-Party Cash Segment
	123
	124	tac: 'toggle ansicolors'- switch on and off the colored text-output of this script
	125	default can be changed by setting the variable 'colored_output' to false
	126	]]
	127	currentTag="inTAG"
	128
	129	---
	130	-- requirements
	131	local utils = require('utils')
	132	local getopt = require('getopt')
	133	local ansicolors = require('ansicolors')
	134
	135	---
	136	-- global variables / defines
	137	local bxor = bit32.bxor
	138	local bbit = bit32.extract
	139	local input = utils.input
	140	local confirm = utils.confirm
	141
	142	---
	143	-- init ansicolor-values & ansicolors switch
	144	local colored_output = true
	145	local acoff = ""
	146	local acgreen= ""
	147	local accyan = ""
	148	local acred = ""
	149	local acyellow = ""
	150	local acblue = ""
	151	local acmagenta = ""
	152
	153	--- Helper ---
	154	---
	155	-- default colors (change to whatever you want)
	156	function load_colors(onoff)
	157	if (onoff) then
	158	-- colors
	159	acgreen = ansicolors.green
	160	accyan = ansicolors.cyan
	161	acred = ansicolors.red
	162	acyellow= ansicolors.yellow
	163	acblue = ansicolors.blue
	164	acmagenta= ansicolors.magenta
	165	acoff = ansicolors.reset
	166	else
	167	-- 'no color'
	168	acgreen = ""
	169	accyan = ""
	170	acred = ""
	171	acyellow= ""
	172	acblue = ""
	173	acmagenta= ""
	174	acoff = ""
	175	end
	176	end
	177
	178	---
	179	-- curency-codes for Legic-Cash-Segments (ISO 4217)
	180	local currency = {
	181	["03d2"]="EUR",
	182	["0348"]="USD",
	183	["033A"]="GBP",
	184	["02F4"]="CHF"
	185	}
	186
	187	---
	188	-- This is only meant to be used when errors occur
	189	function oops(err)
	190	print(acred.."ERROR: "..acoff ,err)
	191	return nil, err
	192	end
	193
	194	---
	195	-- Usage help
	196	function help()
	197	print(desc)
	198	print("Version: "..version)
	199	print("Example usage: "..example)
	200	end
	201
	202	---
	203	-- table check helper
	204	function istable(t)
	205	return type(t) == 'table'
	206	end
	207
	208	---
	209	-- creates a 'deep copy' of a table (a=b only references)
	210	function deepCopy(object)
	211	local lookup_table = {}
	212	local function _copy(object)
	213	if type(object) ~= "table" then
	214	return object
	215	elseif lookup_table[object] then
	216	return lookup_table[object]
	217	end
	218	local new_table = {}
	219	lookup_table[object] = new_table
	220	for index, value in pairs(object) do
	221	new_table[_copy(index)] = _copy(value)
	222	end
	223	return setmetatable(new_table, getmetatable(object))
	224	end
	225	return _copy(object)
	226	end
	227
	228	---
	229	-- xor single byte
	230	function xorme(hex, xor, index)
	231	if ( index >= 23 ) then
	232	return ('%02x'):format(bxor( tonumber(hex,16) , tonumber(xor,16) ))
	233	else
	234	return hex
	235	end
	236	end
	237
	238	---
	239	-- (de)obfuscate bytes
	240	function xorBytes(inBytes, crc)
	241	local bytes = {}
	242	for index = 1, #inBytes do
	243	bytes[index] = xorme(inBytes[index], crc, index)
	244	end
	245	if (#inBytes == #bytes) then
	246	-- replace crc
	247	bytes[5] = string.sub(crc,-2)
	248	return bytes
	249	else
	250	print("error: byte-count missmatch")
	251	return false
	252	end
	253	end
	254
	255	---
	256	-- check availability of file
	257	function file_check(file_name)
	258	local file_found=io.open(file_name, "r")
	259	if file_found==nil then
	260	return false
	261	else
	262	return true
	263	end
	264	end
	265
	266	---
	267	-- split csv-string into table
	268	local function split(str, sep)
	269	local sep = sep or ','
	270	local fields={}
	271	local matchfunc = string.gmatch(str, "([^"..sep.."]+)")
	272	if not matchfunc then return {str} end
	273	for str in matchfunc do
	274	table.insert(fields, str)
	275	end
	276	return fields
	277	end
	278
	279	---
	280	-- put a string into a bytes-table
	281	function str2bytes(s)
	282	local res={}
	283	if (string.len(s)%2~=0) then return print("stamp should be a even hexstring e.g.: deadbeef or 0badc0de") end
	284	for i=1, string.len(s), 2 do
	285	table.insert(res, string.sub(s,i,(i+1)))
	286	end
	287	return res
	288	end
	289
	290	---
	291	-- put certain bytes into a new table
	292	function bytesToTable(bytes, bstart, bend)
	293	local t={}
	294	for i=0, (bend-bstart) do
	295	t[i]=bytes[bstart+i]
	296	end
	297	return t
	298	end
	299
	300	---
	301	-- read file into table
	302	function getInputBytes(infile)
	303	local line
	304	local bytes = {}
	305	local fhi,err = io.open(infile)
	306	if err then oops("faild to read from file ".. infile); return false; end
	307	while true do
	308	line = fhi:read()
	309	if line == nil then break end
	310	for byte in line:gmatch("%w+") do
	311	table.insert(bytes, byte)
	312	end
	313	end
	314	fhi:close()
	315	if (bytes[7]=='00') then return false end
	316	print(#bytes .. " bytes from "..infile.." loaded")
	317	return bytes
	318	end
	319
	320	---
	321	-- create tag-table helper
	322	function createTagTable()
	323	local t={
	324	['MCD'] = '00',
	325	['MSN0']= '11',
	326	['MSN1']= '22',
	327	['MSN2']= '33',
	328	['MCC'] = 'cc',
	329	['DCFl']= 'ff',
	330	['DCFh']= 'ff',
	331	['Type']= 'GAM',
	332	['OLE'] = 0,
	333	['Stamp_len']= 18,
	334	['WRP'] = '00',
	335	['WRC'] = '00',
	336	['RD'] = '00',
	337	['raw'] = '9f',
	338	['SSC'] = 'ff',
	339	['data']= {},
	340	['bck'] = {},
	341	['MTC'] = {},
	342	['SEG'] = {}
	343	}
	344	return t
	345	end
	346
	347	---
	348	-- put bytes into tag-table
	349	function bytesToTag(bytes, tag)
	350	if(istable(tag)) then
	351	tag.MCD =bytes[1];
	352	tag.MSN0=bytes[2];
	353	tag.MSN1=bytes[3];
	354	tag.MSN2=bytes[4];
	355	tag.MCC =bytes[5];
	356	tag.DCFl=bytes[6];
	357	tag.DCFh=bytes[7];
	358	tag.raw =bytes[8];
	359	tag.SSC =bytes[9];
	360	tag.Type=getTokenType(tag.DCFl);
	361	tag.OLE=bbit("0x"..tag.DCFl,7,1)
	362	tag.WRP=("%d"):format(bbit("0x"..bytes[8],0,4))
	363	tag.WRC=("%d"):format(bbit("0x"..bytes[8],4,3))
	364	tag.RD=("%d"):format(bbit("0x"..bytes[8],7,1))
	365	tag.Stamp_len=(tonumber(0xfc,10)-tonumber(bbit("0x"..tag.DCFh,0,8),10))
	366	tag.data=bytesToTable(bytes, 10, 13)
	367	tag.Bck=bytesToTable(bytes, 14, 20)
	368	tag.MTC=bytesToTable(bytes, 21, 22)
	369
	370	print(acgreen.."Tag-Type: ".. tag.Type..acoff)
	371	if (tag.Type=="SAM" and #bytes>23) then
	372	tag=segmentsToTag(bytes, tag)
	373	print(acgreen..(#tag.SEG+1).." Segment(s) found"..acoff)
	374	-- unsegmented Master-Token
	375	-- only tag-data
	376	else
	377	for i=0, #tag.Bck do
	378	table.insert(tag.data, tag.Bck[i])
	379	end
	380	tag.data[#tag.data]=tag.MTC[0]
	381	tag.Bck=nil
	382	--tag.MTC[0]=tag.MTC[1]
	383	--tag.MTC[1]=nil
	384	end
	385	print(accyan..#bytes.." bytes for Tag processed"..acoff)
	386	return tag
	387	end
	388	return oops("tag is no table in: bytesToTag ("..type(tag)..")")
	389	end
	390
	391	---
	392	-- put segments from byte-table to tag-table
	393	function segmentsToTag(bytes, tag)
	394	if(#bytes>23) then
	395	local start=23
	396	local i=-1
	397	if (istable(tag)) then
	398	repeat
	399	i=i+1
	400	tag.SEG[i]=getSegmentData(bytes, start, ("%02d"):format(i))
	401	if (tag.Type=="SAM") then
	402	if (checkKghCrc(tag, i)) then tag.SEG[i].kgh=true end
	403	end
	404	start=start+tag.SEG[i].len
	405	until ((tag.SEG[i].valid==0) or tag.SEG[i].last==1 or i==126)
	406	return tag
	407	else return oops("tag is no table in: segmentsToTag ("..type(tag)..")") end
	408	else print("no Segments: must be a MIM22") end
	409	end
	410
	411	---
	412	-- read Tag-Table in bytes-table
	413	function tagToBytes(tag)
	414	if (istable(tag)) then
	415	local bytes = {}
	416	local i, i2
	417	-- main token-data
	418	table.insert(bytes, tag.MCD)
	419	table.insert(bytes, tag.MSN0)
	420	table.insert(bytes, tag.MSN1)
	421	table.insert(bytes, tag.MSN2)
	422	table.insert(bytes, tag.MCC)
	423	table.insert(bytes, tag.DCFl)
	424	table.insert(bytes, tag.DCFh)
	425	table.insert(bytes, tag.raw)
	426	table.insert(bytes, tag.SSC)
	427	-- raw token data
	428	for i=0, #tag.data do
	429	table.insert(bytes, tag.data[i])
	430	end
	431	-- backup data
	432	if(istable(tag.Bck)) then
	433	for i=0, #tag.Bck do
	434	table.insert(bytes, tag.Bck[i])
	435	end
	436	end
	437	-- token-create-time / master-token crc
	438	for i=0, #tag.MTC do
	439	table.insert(bytes, tag.MTC[i])
	440	end
	441	-- process segments
	442	if (type(tag.SEG[0])=='table') then
	443	for i=0, #tag.SEG do
	444	for i2=1, #tag.SEG[i].raw+1 do
	445	table.insert(bytes, #bytes+1, tag.SEG[i].raw[i2])
	446	end
	447	table.insert(bytes, #bytes+1, tag.SEG[i].crc)
	448	for i2=0, #tag.SEG[i].data-1 do
	449	table.insert(bytes, #bytes+1, tag.SEG[i].data[i2])
	450	end
	451	end
	452	end
	453	-- fill with zeros
	454	for i=#bytes+1, 1024 do
	455	table.insert(bytes, i, '00')
	456	end
	457	return bytes
	458	end
	459	return oops("tag is no table in tagToBytes ("..type(tag)..")")
	460	end
	461
	462	--- PM3 I/O ---
	463	---
	464	-- read from pm3 into virtual-tag
	465	function readFromPM3()
	466	local tag, bytes, infile
	467	infile="legic.temp"
	468	core.console("hf legic reader")
	469	core.console("hf legic save "..infile)
	470	tag=readFile(infile)
	471	return tag
	472	end
	473
	474	---
	475	-- write virtual Tag to real Tag
	476	function writeToTag(tag)
	477	local bytes
	478	local filename='MylegicClone.hex'
	479	local taglen=22
	480	if(utils.confirm(acred.."\nplace the (empty) Tag onto the PM3\nand confirm writing to this Tag: "..acoff) == false) then
	481	return
	482	end
	483	-- get used bytes / tag-len
	484	if(istable(tag.SEG)) then
	485	if (istable(tag.Bck)) then
	486	for i=0, #tag.SEG do
	487	taglen=taglen+tag.SEG[i].len+5
	488	end
	489	end
	490	local uid_old=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
	491	-- read new tag into memory so we can xor the new data with the new MCC
	492	outTAG=readFromPM3()
	493	outbytes=tagToBytes(outTAG)
	494	-- copy 'inputbuffer' to 'outputbuffer'
	495	tag.MCD = outbytes[1]
	496	tag.MSN0 = outbytes[2]
	497	tag.MSN1 = outbytes[3]
	498	tag.MSN2 = outbytes[4]
	499	tag.MCC = outbytes[5]
	500	-- recheck all segments-crc/kghcrc (only on a credential)
	501	if(istable(tag.Bck)) then
	502	checkAllSegCrc(tag)
	503	checkAllKghCrc(tag)
	504	local uid_new=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
	505	for i=0, #tag.SEG do
	506	if (check43rdPartyCash1(uid_old, tag.SEG[i].data)) then
	507	io.write(accyan.."\nfixing known checksums"..acoff.." ... ")
	508	if (fix3rdPartyCash1(uid_new, tag.SEG[i].data)) then
	509	io.write(acgreen.." done\n"..acoff)
	510	else oops("\nsomething went wrong at the repair of the 3rd-party-cash-segment") end
	511	end
	512	end
	513	end
	514	bytes=tagToBytes(tag)
	515	-- master-token-crc
	516	if (tag.Type~="SAM") then bytes[22]=calcMtCrc(bytes) end
	517	if (bytes) then
	518	print("write temp-file '"..filename.."'")
	519	print(accyan)
	520	writeFile(bytes, filename)
	521	--writeToTag(bytes, taglen, 'MylegicClone.hex')
	522	print(acoff)
	523	end
	524	end
	525	-- write data to file
	526	if (taglen > 0) then
	527	WriteBytes = utils.input(acyellow.."enter number of bytes to write?"..acoff, taglen)
	528	-- load file into pm3-buffer
	529	if (type(filename)~="string") then filename=input(acyellow.."filename to load to pm3-buffer?"..acoff,"legic.temp") end
	530	cmd = 'hf legic load '..filename
	531	core.console(cmd)
	532	-- write pm3-buffer to Tag
	533	for i=0, WriteBytes do
	534	if ( i<5 or i>6) then
	535	cmd = ('hf legic write 0x%02x 0x01'):format(i)
	536	core.console(cmd)
	537	--print(cmd)
	538	elseif (i == 6) then
	539	-- write DCF in reverse order (requires 'mosci-patch')
	540	cmd = 'hf legic write 0x05 0x02'
	541	print(acgreen..cmd..acoff)
	542	core.console(cmd)
	543	--print(cmd)
	544	else
	545	print(acgreen.."skip byte 0x05 - will be written next step"..acoff)
	546	end
	547	utils.Sleep(0.2)
	548	end
	549	end
	550	end
	551
	552	--- File I/O ---
	553	---
	554	-- read file into virtual-tag
	555	function readFile(filename)
	556	print(accyan)
	557	local bytes = {}
	558	local tag = {}
	559	if (file_check(filename)==false) then
	560	return oops("input file: "..filename.." not found")
	561	else
	562	bytes = getInputBytes(filename)
	563	if (bytes == false) then return oops('couldnt get input bytes')
	564	else
	565	-- make plain bytes
	566	bytes = xorBytes(bytes,bytes[5])
	567	print("create virtual tag from ".. #bytes .. " bytes")
	568	-- create Tag for plain bytes
	569	tag=createTagTable()
	570	-- load plain bytes to tag-table
	571	print(acoff)
	572	tag=bytesToTag(bytes, tag)
	573	end
	574	end
	575	return tag
	576	end
	577
	578	---
	579	-- write bytes to file
	580	function writeFile(bytes, filename)
	581	if (filename~='MylegicClone.hex') then
	582	if (file_check(filename)) then
	583	local answer = confirm("\nthe output-file "..filename.." alredy exists!\nthis will delete the previous content!\ncontinue?")
	584	if (answer==false) then return print("user abort") end
	585	end
	586	end
	587	local line
	588	local bcnt=0
	589	local fho,err = io.open(filename, "w")
	590	if err then oops("OOps ... faild to open output-file ".. filename) end
	591	bytes=xorBytes(bytes, bytes[5])
	592	for i = 1, #bytes do
	593	if (bcnt == 0) then
	594	line=bytes[i]
	595	elseif (bcnt <= 7) then
	596	line=line.." "..bytes[i]
	597	end
	598	if (bcnt == 7) then
	599	-- write line to new file
	600	fho:write(line.."\n")
	601	-- reset counter & line
	602	bcnt=-1
	603	line=""
	604	end
	605	bcnt=bcnt+1
	606	end
	607	fho:close()
	608	print("\nwrote ".. #bytes .." bytes to " .. filename)
	609	return true
	610	end
	611
	612	--- Map related ---
	613	---
	614	-- make tagMap
	615	function makeTagMap()
	616	local tagMap={}
	617	if (#tagMap==0) then
	618	tagMap['name']=input(accyan.."enter Name for this Map: "..acoff , "newTagMap")
	619	tagMap['mappings']={}
	620	tagMap['crc8']={}
	621	-- insert fixed Tag-CRC
	622	table.insert(tagMap.crc8, {name='TAG-CRC', pos=5, seq={1, 4}})
	623	tagMap['crc16']={}
	624	end
	625	print(accyan.."new tagMap created"..acoff)
	626	return tagMap
	627	end
	628
	629	---
	630	-- save mapping to file
	631	function saveTagMap(map, filename)
	632	if (string.len(filename)>0) then
	633	if (file_check(filename)) then
	634	local answer = confirm("\nthe output-file "..filename.." alredy exists!\nthis will delete the previous content!\ncontinue?")
	635	if (answer==false) then return print("user abort") end
	636	end
	637	end
	638
	639	local line
	640	local fho,err = io.open(filename, "w")
	641	if err then oops("OOps ... faild to open output-file ".. filename) end
	642
	643	-- write line to new file
	644	for k, v in pairs(map) do
	645	if (istable(v)) then
	646	for k2, v2 in pairs(v) do
	647	if (k=='mappings') then
	648	fho:write(k..","..k2..","..v2['name']..","..v2['start']..","..v2['end']..","..((v2['highlight']) and "1" or "0").."\n")
	649	elseif (k=="crc8") then
	650	local tmp=""
	651	tmp=k..","..k2..","..v2['name']..","..v2['pos']..","
	652	tmp=tmp..tbl2seqstr(v2['seq'])
	653	fho:write(tmp.."\n")
	654	end
	655	end
	656	else
	657	fho:write(k..","..v.."\n")
	658	end
	659	end
	660	fho:close()
	661	return true
	662	end
	663
	664	---
	665	-- toggle higligh
	666	function toggleHighlight(tbl)
	667	if (tbl['highlight']) then tbl['highlight']=false
	668	else tbl['highlight']=true end
	669	return tbl
	670	end
	671
	672	---
	673	-- return table od seqence-string
	674	function seqstr2tbl(seqstr)
	675	local s=split(seqstr)
	676	local res={}
	677	if (#s>=1) then
	678	for sk, sv in pairs(s) do
	679	s2=split(sv, '-')
	680	if(#s2==2) then
	681	table.insert(res, s2[1])
	682	table.insert(res, s2[2])
	683	end
	684	end
	685	end
	686	return res
	687	end
	688
	689	---
	690	-- return sequence-string from table
	691	function tbl2seqstr(seqtbl)
	692	local res=""
	693	if (istable(seqtbl)) then
	694	for sk, sv in pairs(seqtbl) do
	695	res=res..sv..((sk%2==0) and "," or "-")
	696	end
	697	if (string.sub(res, string.len(res))==",") then
	698	res=string.sub(res, 1, string.len(res)-1)
	699	end
	700	end
	701	return res
	702	end
	703
	704	---
	705	-- read map-file into map
	706	function loadTagMap(filename)
	707	local map={mappings={}, crc8={}, crc16={}}
	708	local m=0
	709	local c=0
	710	local line, fields
	711	local temp={}
	712	local offset=0
	713	if (file_check(filename)==false) then
	714	return oops("input file: "..filename.." not found")
	715	else
	716	local fhi,err = io.open(filename)
	717	while true do
	718	line = fhi:read()
	719	if line == nil then
	720	break
	721	else
	722	fields=split(line)
	723	end
	724	if (#fields==2) then
	725	if (fields[1]=='offset') then
	726	offset=tonumber(fields[2],10)
	727	end
	728	-- map-name
	729	map[fields[1]]=fields[2]
	730	elseif (fields[1]=='mappings') then
	731	m=m+1
	732	temp={}
	733	-- mapping
	734	temp['name']=fields[3]
	735	temp['start']=tonumber(fields[4], 10)
	736	temp['end']=tonumber(fields[5], 10)
	737	if(temp['start']>22) then
	738	temp['start']=temp['start']+offset
	739	temp['end']=temp['end']+offset
	740	end
	741	if (tonumber(fields[6], 10)==1) then temp['highlight']= true
	742	else temp['highlight']= false end
	743	table.insert(map['mappings'], m, temp)
	744	elseif (fields[1]=='crc8') then
	745	c=c+1
	746	temp={}
	747	-- crc8
	748	temp['name']=fields[3]
	749	temp['pos']=tonumber(fields[4], 10)+offset
	750	local s=string.sub(line, string.len(fields[1]..","..fields[2]..","..fields[3]..",")+1, string.len(line))
	751	temp['seq']=seqstr2tbl(s)
	752	for k, v in pairs(temp['seq']) do
	753	if(tonumber(v, 10)>22) then v=tonumber(v, 10)+offset end
	754	temp['seq'][k]=tonumber(v, 10)
	755	end
	756	table.insert(map.crc8, temp)
	757	end
	758	end
	759	fhi:close()
	760	end
	761	return map
	762	end
	763
	764	---
	765	-- dump tagMap (mappings only)
	766	function dumpTagMap(tag, tagMap)
	767	if(#tagMap.mappings>0) then
	768	bytes=tagToBytes(tag)
	769	local temp
	770	local lastend=0
	771	-- start display mappings
	772	for k, v in pairs(tagMap.mappings) do
	773	if ((lastend+1)<v['start']) then
	774	print("...")
	775	end
	776	if (isPosCrc8(tagMap, v['start'])>0) then
	777	if ( checkMapCrc8(tagMap, bytes, isPosCrc8(tagMap, v['start']) ) ) then
	778	io.write("("..("%04d"):format(v['start']).."-"..("%04d"):format(v['end'])..") "..acgreen..v['name']..acoff..":")
	779	else
	780	io.write("("..("%04d"):format(v['start']).."-"..("%04d"):format(v['end'])..") "..acred..v['name']..acoff..":")
	781	end
	782	else
	783	io.write("("..("%04d"):format(v['start']).."-"..("%04d"):format(v['end'])..") "..((v['highlight']) and acmagenta or acyellow)..v['name']..acoff..":")
	784	end
	785	temp=""
	786	for i=((string.len(v['name']))/10), 2 do
	787	temp=temp.."\t"
	788	end
	789	for i=v['start'], v['end'] do
	790	temp=temp..bytes[i].." "
	791	end
	792	print(temp)
	793	lastend=v['end']
	794	end
	795	end
	796	end
	797
	798	---
	799	--
	800	function isPosCrc8(tagMap, pos)
	801	local res=0
	802	if (#tagMap.crc8>0) then
	803	for k, v in pairs(tagMap.crc8) do
	804	if(v['pos']==pos) then res=k end
	805	end
	806	end
	807	return res
	808	end
	809
	810	---
	811	-- check mapped crc
	812	function checkMapCrc8(tagMap, bytes, n)
	813	local res=false
	814	if (#tagMap.crc8>0) then
	815	if(istable(tagMap.crc8[n])) then
	816	temp=""
	817	for k2, v2 in pairs(tagMap.crc8[n]) do
	818	if (istable(v2)) then
	819	temp=temp..tbl2seqstr(v2)
	820	end
	821	end
	822	local tempres=""
	823	local tempres=getSequences(bytes, temp)
	824	tempres=("%02x"):format(utils.Crc8Legic(tempres))
	825	if (bytes[tagMap.crc8[n]['pos']]==tempres) then
	826	res=true
	827	end
	828	end
	829	end
	830	return res
	831	end
	832
	833	---
	834	-- edit existing Map
	835	function editTagMap(tag, tagMap)
	836	local t = [[
	837	Data: dm = show dr = dump raw
	838	Mappings: im = insert am = add rm = remove
	839	CRC8: ac8 = add sc8 = show rc8 = remove
	840	: q = exit h = Help
	841	]]
	842	--if(#tagMap.mappings==0) then oops("no mappings in tagMap"); return tagMap end
	843	print("tagMap edit-mode submenu")
	844	repeat
	845	x=input('tagMap submenu:', 'h')
	846	if (x=='h') then print(t)
	847	elseif (x=='dm') then tagMmap=dumpTagMap(tag, tagMap)
	848	elseif (x=='dr') then tagMmap=dumpMap(tag, tagMap)
	849	elseif (x=='rc8') then
	850	if (istable(tagMap.crc8)) then
	851	local x1 = selectTableEntry(tagMap.crc8, "select number of CRC8 to remove:")
	852	if (istable(tagMap.crc8[x1])) then
	853	table.remove(tagMap.crc8, x1)
	854	end
	855	end
	856	elseif (x=='ac8') then
	857	local p=tonumber(input("enter byte-addr of crc8", '0'),10)
	858	if (p>0) then
	859	local i1=input("enter comma-seperated byte-sequences (e.g.: '1-4,23-26')", '1-4,23-26')
	860	local s1=split(i1, ',')
	861	if (#s1>0) then
	862	local temp={seq={}}
	863	for k, v in pairs(s1) do
	864	v1=split(v, '-')
	865	if(#v1==2) then
	866	table.insert(temp.seq, v1[1])
	867	table.insert(temp.seq, v1[2])
	868	end
	869	end
	870	temp['pos']=p
	871	temp['name']=input("enter a name for the CRC8", "CRC "..(#tagMap.crc8+1))
	872	table.insert(tagMap.crc8, temp)
	873	end
	874	end
	875	elseif (string.sub(x, 1, 3)=='sc8') then
	876	local bytes=tagToBytes(tag)
	877	local res, pos
	878	-- trigger manually by sc8 <'4digit' checkadd> <'seqeuence-string'>
	879	-- e.g.: sc8 0027 1-4,23-36
	880	if (string.len(x)>=9) then
	881	pos=tonumber(string.sub(x, 5, 8), 10)
	882	x=string.sub(x, 9, string.len(x))
	883	print("x: "..x.." - pos:"..pos)
	884	else
	885	x=selectTableEntry(tagMap.crc8, "select CRC:")
	886	if(istable(tagMap.crc8[x])) then
	887	pos=tagMap.crc8[x]['pos']
	888	x=tbl2seqstr(tagMap.crc8[x]['seq'])
	889	end
	890	end
	891	if (type(x)=='string') then
	892	res=("%02x"):format(utils.Crc8Legic(getSequences(bytes, x)))
	893	print(accyan.."Sequence:\t"..acoff..x)
	894	print(accyan.."Bytes:\t\t"..acoff..getSequences(bytes, x))
	895	print(accyan.."calculated: "..acoff..res..accyan.." bytes["..pos.."]: "..acoff..bytes[pos].." ("..compareCrc(utils.Crc8Legic(getSequences(bytes, x)), bytes[pos])..")")
	896	end
	897	elseif (x=="tm") then
	898	x=selectTableEntry(tagMap.mappings, "select number of Mapping:")
	899	tagMap.mappings[x]=toggleHighlight(tagMap.mappings[x])
	900	elseif (x=='am') then tagMap=addMapping(tag, tagMap)
	901	elseif (x=='im') then tagMap=addMapping(tag, tagMap, selectTableEntry(tagMap.mappings, "select List-Position for insert:"))
	902	elseif (x=='rm') then tagMap=deleteMapping(tag, tagMap)
	903	elseif (x=='mas') then tagMap=mapTag(tagMap); tagMap=mapAllSegments(tag, tagMap)
	904	elseif (type(actions[string.sub(x, 3)])=='function') then actions[string.sub(x, 3)]()
	905	end
	906	until x=='q'
	907	print("exit sub-Menu")
	908	return tagMap
	909	end
	910
	911	---
	912	-- dump raw mapped and unmapped
	913	function dumpMap(tag, tagMap)
	914	local dstart=1
	915	local dend, cnt
	916	local bytes = tagToBytes(tag)
	917	local stats = getSegmentStats(bytes)
	918	dend=stats[#stats]['end']
	919	print(accyan.."Tag uses "..dend.." bytes:"..acoff)
	920	for i=dstart, dend do
	921	if (check4MappedByte(i, tagMap) and not check4MapCrc8(i, tagMap) and not check4Highlight(i, tagMap)) then io.write(""..acyellow)
	922	elseif (check4MapCrc8(i, tagMap)) then
	923	if ( checkMapCrc8(tagMap, bytes, isPosCrc8(tagMap, i) ) ) then
	924	io.write(""..acgreen)
	925	else
	926	io.write(""..acred)
	927	end
	928	else
	929	io.write(""..acoff)
	930	end
	931	-- highlighted mapping
	932	if (check4Highlight(i, tagMap)) then io.write(""..acmagenta) end
	933
	934	io.write(bytes[i])
	935	if (i%8==0) then io.write("\n")
	936	else io.write(" ") end
	937	end
	938
	939	io.write("\n"..acoff)
	940	end
	941
	942	---
	943	-- show bytes used for crc-calculation
	944	function getSequences(bytes, seqstr)
	945	if (type(seqstr)~="string") then seqstr=input("enter comma-seperated sequences (e.g.: '1-4,23-26')", '1-4,23-26') end
	946	local seqs=split(seqstr, ',')
	947	local res = ""
	948	if(#seqs>0) then
	949	for k, v in pairs(seqs) do
	950	local seq = split(v,'-')
	951	if (#seq>=2) then
	952	for i=seq[1], seq[2] do
	953	res=res..bytes[i].." "
	954	end
	955	end
	956	if(string.len(res)>0) then res=res.." " end
	957	end
	958	else
	959	oops("no sequence found in '"..seqstr.."'")
	960	end
	961	return res
	962	end
	963
	964	---
	965	-- check if byte-addr is a know crc
	966	function check4MapCrc8(addr, tagMap)
	967	local res=false
	968	for i=1, #tagMap.crc8 do
	969	if (addr == tagMap.crc8[i]['pos']) then
	970	res=true
	971	end
	972	end
	973	return res
	974	end
	975
	976	---
	977	-- check if byte-addr is a know crc
	978	function check4MapCrc16(addr, tagMap)
	979	local res=false
	980	for i=1, #tagMap.crc16 do
	981	if (addr == tagMap.crc16[i]['pos']) then
	982	res=true
	983	end
	984	end
	985	return res
	986	end
	987
	988	---
	989	-- check if byte is mapped or not
	990	function check4MappedByte(addr, tagMap)
	991	local res=false
	992	for _, v in pairs(tagMap.mappings) do
	993	if (addr >= v['start'] and addr <= v['end'] ) then
	994	res= true
	995	end
	996	end
	997	return res
	998	end
	999
	1000	---
	1001	-- check if byte is highlighted or not
	1002	function check4Highlight(addr, tagMap)
	1003	local res=false
	1004	for _, v in pairs(tagMap.mappings) do
	1005	if (addr >= v['start'] and addr <= v['end'] ) then
	1006	res= v['highlight']
	1007	end
	1008	end
	1009	return res
	1010	end
	1011
	1012	---
	1013	-- add interactive mapping
	1014	function addMapping(tag, tagMap, x)
	1015	if (type(x)~="number") then x=#tagMap.mappings+1 end
	1016	local bytes=tagToBytes(tag)
	1017	local myMapping={}
	1018	myMapping['name'] =input(accyan.."enter Maping-Name:"..acoff, string.format("mapping %d", #tagMap.mappings+1))
	1019	myMapping['start']=tonumber(input(accyan.."enter start-addr:"..acoff, '1'), 10)
	1020	myMapping['end'] =tonumber(input(accyan.."enter end-addr:"..acoff, #bytes), 10)
	1021	myMapping['highlight']=confirm("set highlighted")
	1022	table.insert(tagMap.mappings, x, myMapping)
	1023	return tagMap
	1024	end
	1025
	1026	---
	1027	-- delete mapping
	1028	function deleteMapping(tag, tagMap)
	1029	if(#tagMap.mappings>0) then
	1030	local d = selectTableEntry(tagMap.mappings, "select number of Mapping to remove:")
	1031	if (type(d)=='number') then
	1032	table.remove(tagMap.mappings, d)
	1033	else oops("deleteMapping: got type = "..type(d).." - expected type = 'number'")
	1034	end
	1035	end
	1036	return tagMap
	1037	end
	1038
	1039	---
	1040	-- select a mapping from a tagmap
	1041	function selectTableEntry(table, action)
	1042	if (type(action)~="string") then action="select number of item:" end
	1043	for k, v in pairs(table) do
	1044	print(accyan..k..acoff.."\t-> "..accyan..v['name']..acoff)
	1045	end
	1046	local res = tonumber(input(action , 0), 10)
	1047	if (istable(table[res])) then
	1048	return res
	1049	else
	1050	return false
	1051	end
	1052	end
	1053
	1054	---
	1055	-- map all segments
	1056	function mapAllSegments(tag, tagMap)
	1057	local bytes=tagToBytes(tag)
	1058	local WRP,WRC,WRPC
	1059	segs=getSegmentStats(bytes)
	1060	if (istable(segs)) then
	1061	for k, v in pairs(segs) do
	1062	-- wrp (write proteted) = byte 2
	1063	WRP = tonumber(bytes[v['start']+2],16)
	1064	-- wrc (write control) - bit 4-6 of byte 3
	1065	WRC = tonumber(bbit("0x"..bytes[v['start']+3],4,3),16)
	1066	--tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." HDR", v['start'], v['start']+3)
	1067	tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." CRC", v['start']+4, v['start']+4, true)
	1068	table.insert(tagMap.crc8, {name = 'Segment '..("%02d"):format(v['index']).." CRC", pos=v['start']+4, seq={1,4,v['start'],v['start']+3}} )
	1069	if(WRC>WRP) then
	1070	WRPC=WRC
	1071	tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." WRC", v['start']+5, v['start']+5+WRC-1, true)
	1072	elseif (WRP>WRC and WRC>0) then
	1073	WRPC=WRP
	1074	tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." WRC", v['start']+5, v['start']+5+WRC-1, true)
	1075	tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." WRP", v['start']+WRC+5, v['start']+5+WRP-1, true)
	1076	else
	1077	WRPC=WRP
	1078	tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." WRP", v['start']+5, v['start']+5+WRP-1, true)
	1079	end
	1080	tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." data", v['start']+5+WRPC, v['end'], false)
	1081
	1082	end
	1083	print(#segs.." Segments mapped")
	1084	else
	1085	oops("autoMapSegments failed: no Segments found")
	1086	end
	1087	return tagMap
	1088	end
	1089
	1090	---
	1091	-- map all token data
	1092	function mapTokenData(tagMap, mname, mstart, mend, mhigh)
	1093	--if ( not mhigh ) then mhigh=false end
	1094	local myMapping={}
	1095	myMapping['name'] =mname
	1096	myMapping['start']=mstart
	1097	myMapping['end'] =mend
	1098	myMapping['highlight']=mhigh
	1099	table.insert(tagMap.mappings, myMapping)
	1100	return tagMap
	1101	end
	1102
	1103	---
	1104	-- map a map
	1105	function mapTag(tagMap)
	1106	tagMap=makeTagMap()
	1107	tagMap=mapTokenData(tagMap, 'Tag-ID', 1, 4, true)
	1108	tagMap=mapTokenData(tagMap, 'Tag-CRC', 5, 5, false)
	1109	tagMap=mapTokenData(tagMap, 'DCF', 6, 7, true)
	1110	tagMap=mapTokenData(tagMap, 'THDR-Raw/Stamp-Len', 8, 8, true)
	1111	tagMap=mapTokenData(tagMap, 'SSC', 9, 9, true)
	1112	tagMap=mapTokenData(tagMap, 'Header', 10, 13, false)
	1113	tagMap=mapTokenData(tagMap, 'Backup', 14, 19, true)
	1114	tagMap=mapTokenData(tagMap, 'Bck-CRC', 20, 20, false)
	1115	tagMap=mapTokenData(tagMap, 'TokenTime', 21, 22, false)
	1116	return tagMap
	1117	end
	1118
	1119	--- Dump Data ---
	1120	---
	1121	-- dump virtual Tag-Data
	1122	function dumpTag(tag)
	1123	local i, i2
	1124	local res
	1125	local dp=0
	1126	local raw=""
	1127	-- sytstem area
	1128	res =acyellow.."\nCDF: System Area"..acoff
	1129	res= res.."\n"..dumpCDF(tag)
	1130	-- segments (user-token area)
	1131	if(tag.Type=="SAM") then
	1132	res = res..acyellow.."\n\nADF: User Area"..acoff
	1133	for i=0, #tag.SEG do
	1134	res=res.."\n"..dumpSegment(tag, i).."\n"
	1135	end
	1136	end
	1137	return res
	1138	end
	1139
	1140	---
	1141	-- dump tag-system area
	1142	function dumpCDF(tag)
	1143	local res=""
	1144	local i=0
	1145	local raw=""
	1146	local bytes
	1147	if (istable(tag)) then
	1148	res = res..accyan.."MCD: "..acoff..tag.MCD..accyan.." MSN: "..acoff..tag.MSN0.." "..tag.MSN1.." "..tag.MSN2..accyan.." MCC: "..acoff..tag.MCC.."\n"
	1149	res = res.."DCF: "..tag.DCFl.." "..tag.DCFh..", Token_Type="..tag.Type.." (OLE="..tag.OLE.."), Stamp_len="..tag.Stamp_len.."\n"
	1150	res = res.."WRP="..tag.WRP..", WRC="..tag.WRC..", RD="..tag.RD..", raw="..tag.raw..((tag.raw=='9f') and (", SSC="..tag.SSC.."\n") or "\n")
	1151
	1152	-- credential (end-user tag)
	1153	if (tag.Type=="SAM") then
	1154	res = res.."Remaining Header Area\n"
	1155	for i=0, (#tag.data) do
	1156	res = res..tag.data[i].." "
	1157	end
	1158	res = res.."\nBackup Area\n"
	1159	for i=0, (#tag.Bck) do
	1160	res = res..tag.Bck[i].." "
	1161	end
	1162	res = res.."\nTime Area\n"
	1163	for i=0, (#tag.MTC) do
	1164	res = res..tag.MTC[i].." "
	1165	end
	1166
	1167	-- Master Token specific
	1168	else
	1169	res = res .."Master-Token Area\nStamp: "
	1170	res= res..tag.SSC.." "
	1171	for i=0, tag.Stamp_len-2 do
	1172	res = res..tag.data[i].." "
	1173	end
	1174	res=res.."\nunused payload\n"
	1175	for i=0, (#tag.data-tag.Stamp_len-1) do
	1176	res = res..tag.data[i].." "
	1177	end
	1178	bytes=tagToBytes(tag)
	1179	local mtcrc=calcMtCrc(bytes)
	1180	res=res.."\nMaster-Token CRC: "
	1181	res = res ..tag.MTC[1].." ("..((tag.MTC[1]==mtcrc) and "valid" or "error")..")"
	1182	end
	1183	return res
	1184	else print("no valid Tag in dumpCDF") end
	1185	end
	1186
	1187	---
	1188	-- dump single segment
	1189	function dumpSegment(tag, index)
	1190	local i=index
	1191	local i2
	1192	local dp=0 --data-position in table
	1193	local res="" --result
	1194	local raw="" --raw-header
	1195	-- segment
	1196	if ( (istable(tag.SEG[i])) and tag.Type=="SAM") then
	1197	if (istable(tag.SEG[i].raw)) then
	1198	for k,v in pairs(tag.SEG[i].raw) do
	1199	raw=raw..v.." "
	1200	end
	1201	end
	1202
	1203	-- segment header
	1204	res = res..accyan.."Segment "..("%02d"):format(tag.SEG[i].index)..acoff..": "
	1205	res = res .."raw header: "..string.sub(raw,0,-2)..", flag="..tag.SEG[i].flag..", (valid="..("%x"):format(tag.SEG[i].valid)..", last="..("%x"):format(tag.SEG[i].last).."), "
	1206	res = res .."len="..("%04d"):format(tag.SEG[i].len)..", WRP="..("%02x"):format(tag.SEG[i].WRP)..", WRC="..("%02x"):format(tag.SEG[i].WRC)..", "
	1207	res = res .."RD="..("%02x"):format(tag.SEG[i].RD)..", CRC="..tag.SEG[i].crc.." "
	1208	res = res .."("..(checkSegmentCrc(tag, i) and acgreen.."valid" or acred.."error") ..acoff..")"
	1209	raw=""
	1210
	1211
	1212	-- WRC protected
	1213	if ((tag.SEG[i].WRC>0)) then
	1214	res = res .."\nWRC protected area:\n"
	1215	for i2=dp, dp+tag.SEG[i].WRC-1 do
	1216	res = res..tag.SEG[i].data[i2].." "
	1217	dp=dp+1
	1218	end
	1219	end
	1220
	1221	-- WRP mprotected
	1222	if (tag.SEG[i].WRP>tag.SEG[i].WRC) then
	1223	res = res .."\nRemaining write protected area:\n"
	1224	for i2=dp, dp+(tag.SEG[i].WRP-tag.SEG[i].WRC)-1 do
	1225	res = res..tag.SEG[i].data[i2].." "
	1226	dp=dp+1
	1227	end
	1228	end
	1229
	1230	-- payload
	1231	if (#tag.SEG[i].data-dp>0) then
	1232	res = res .."\nRemaining segment payload:\n"
	1233	for i2=dp, #tag.SEG[i].data-2 do
	1234	res = res..tag.SEG[i].data[dp].." "
	1235	dp=dp+1
	1236	end
	1237	if (tag.SEG[i].kgh) then
	1238	res = res..tag.SEG[i].data[dp].." (KGH: "..(checkKghCrc(tag, i) and acgreen.."valid" or acred.."error") ..acoff..")"
	1239	else res = res..tag.SEG[i].data[dp] end
	1240	end
	1241	dp=0
	1242	return res
	1243	else
	1244	return print("Segment not found")
	1245	end
	1246	end
	1247
	1248	---
	1249	-- return bytes 'sstrat' to 'send' from a table
	1250	function dumpTable(tab, header, tstart, tend)
	1251	res=""
	1252	for i=tstart, tend do
	1253	res=res..tab[i].." "
	1254	end
	1255	if (string.len(header)==0) then return res
	1256	else return (header.." #"..(tend-tstart+1).."\n"..res) end
	1257	end
	1258
	1259	---
	1260	-- dump 3rd Party Cash
	1261	function dump3rdPartyCash1(tag , seg)
	1262	local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
	1263	local stamp=tag.SEG[seg].data[0].." "..tag.SEG[seg].data[1].." "..tag.SEG[seg].data[2]
	1264	local datastamp=tag.SEG[seg].data[20].." "..tag.SEG[seg].data[21].." "..tag.SEG[seg].data[22]
	1265	local balance=tonumber(tag.SEG[seg].data[32]..tag.SEG[seg].data[33] ,16)
	1266	local balancecrc=utils.Crc8Legic(uid..tag.SEG[seg].data[32]..tag.SEG[seg].data[33])
	1267	local mirror=tonumber(tag.SEG[seg].data[35]..tag.SEG[seg].data[36] ,16)
	1268	local mirrorcrc=utils.Crc8Legic(uid..tag.SEG[seg].data[35]..tag.SEG[seg].data[36])
	1269	local lastbal0=tonumber(tag.SEG[seg].data[39]..tag.SEG[seg].data[40] ,16)
	1270	local lastbal1=tonumber(tag.SEG[seg].data[41]..tag.SEG[seg].data[42] ,16)
	1271	local lastbal2=tonumber(tag.SEG[seg].data[43]..tag.SEG[seg].data[44] ,16)
	1272
	1273	test=""
	1274	-- display decoded/known stuff
	1275	print("\n------------------------------")
	1276	print("Tag-ID:\t\t "..uid)
	1277	print("Stamp:\t\t "..stamp)
	1278	print("UID-Mapping: \t\t"..("%06d"):format(tonumber(tag.SEG[seg].data[46]..tag.SEG[seg].data[47]..tag.SEG[seg].data[48], 16)))
	1279	print("------------------------------")
	1280	print("checksum 1:\t\t "..tag.SEG[seg].data[31].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 19, 30)), tag.SEG[seg].data[31])..")")
	1281	print("checksum 2:\t\t "..tag.SEG[seg].data[34].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 32, 33)), tag.SEG[seg].data[34])..")")
	1282	print("checksum 3:\t\t "..tag.SEG[seg].data[37].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 35, 36)), tag.SEG[seg].data[37])..")")
	1283
	1284	print("checksum 4:\t\t "..tag.SEG[seg].data[55].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 46, 54)), tag.SEG[seg].data[55])..")")
	1285	print("checksum 5:\t\t "..tag.SEG[seg].data[62].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 56, 61)), tag.SEG[seg].data[62])..")")
	1286	print("checksum 6:\t\t "..tag.SEG[seg].data[73].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 63, 72)), tag.SEG[seg].data[73])..")")
	1287	print("checksum 7:\t\t "..tag.SEG[seg].data[89].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[seg].data, "", 74, 88)), tag.SEG[seg].data[89])..")")
	1288	print("------------------------------")
	1289	print(string.format("Balance:\t\t %3.2f", balance/100).." ".."("..compareCrc(balancecrc, tag.SEG[seg].data[34])..")")
	1290	print(string.format("Shadow:\t\t\t %3.2f", mirror/100).." ".."("..compareCrc(balancecrc, tag.SEG[seg].data[37])..")")
	1291	print("------------------------------")
	1292	print(string.format("History 1:\t\t %3.2f", lastbal0/100))
	1293	print(string.format("History 2:\t\t %3.2f", lastbal1/100))
	1294	print(string.format("History 3:\t\t %3.2f", lastbal2/100))
	1295	print("------------------------------\n")
	1296	end
	1297
	1298	---
	1299	-- dump Legic-Cash data
	1300	function dumpLegicCash(tag, x)
	1301	if (istable(tag.SEG[x])) then
	1302	io.write("in Segment "..tag.SEG[x].index.." :\n")
	1303	print("--------------------------------\n\tLegic-Cash Values\n--------------------------------")
	1304	local limit, curr, balance, rid, tcv
	1305	-- currency of balance & limit
	1306	curr=currency[tag.SEG[x].data[8]..tag.SEG[x].data[9]]
	1307	-- maximum balance
	1308	limit=string.format("%4.2f", tonumber(tag.SEG[x].data[10]..tag.SEG[x].data[11]..tag.SEG[x].data[12], 16)/100)
	1309	-- current balance
	1310	balance=string.format("%4.2f", tonumber(tag.SEG[x].data[15]..tag.SEG[x].data[16]..tag.SEG[x].data[17], 16)/100)
	1311	-- reader-id who wrote last transaction
	1312	rid=tonumber(tag.SEG[x].data[18]..tag.SEG[x].data[19]..tag.SEG[x].data[20], 16)
	1313	-- transaction counter value
	1314	tcv=tonumber(tag.SEG[x].data[29], 16)
	1315	print("Currency:\t\t "..curr)
	1316	print("Limit:\t\t\t "..limit)
	1317	print("Balance:\t\t "..balance)
	1318	print("Transaction Counter:\t "..tcv)
	1319	print("Reader-ID:\t\t "..rid.."\n--------------------------------\n")
	1320	end
	1321	end
	1322
	1323	---
	1324	-- raw 3rd-party
	1325	function print3rdPartyCash1(tag, x)
	1326	if (istable(tag.SEG[x])) then
	1327	local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
	1328	print("\n\t\tStamp : "..dumpTable(tag.SEG[x].data, "", 0 , 2))
	1329	print("\t\tBlock 0: "..dumpTable(tag.SEG[x].data, "", 3 , 18))
	1330	print()
	1331	print("\t\tBlock 1: "..dumpTable(tag.SEG[x].data, "", 19, 30))
	1332	print("checksum 1: Tag-ID .. Block 1 => LegicCrc8 = "..tag.SEG[x].data[31].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[x].data, "", 19, 30)), tag.SEG[x].data[31])..")")
	1333	print()
	1334	print("\t\tBlock 2: "..dumpTable(tag.SEG[x].data, "", 32, 33))
	1335	print("checksum 2: Block 2 => LegicCrc8 = "..tag.SEG[x].data[34].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[x].data, "", 32, 33)), tag.SEG[x].data[34])..")")
	1336	print()
	1337	print("\t\tBlock 3: "..dumpTable(tag.SEG[x].data, "", 35, 36))
	1338	print("checksum 3: Block 3 => LegicCrc8 = "..tag.SEG[x].data[37].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[x].data, "", 35, 36)), tag.SEG[x].data[37])..")")
	1339	print()
	1340	print("\t\tyet unknown: "..tag.SEG[x].data[38])
	1341	print()
	1342	print("\t\tHisatory 1: "..dumpTable(tag.SEG[x].data, "", 39, 40))
	1343	print("\t\tHisatory 2: "..dumpTable(tag.SEG[x].data, "", 41, 42))
	1344	print("\t\tHisatory 3: "..dumpTable(tag.SEG[x].data, "", 43, 44))
	1345	print()
	1346	print("\t\tyet unknown: "..tag.SEG[x].data[45])
	1347	print()
	1348	print("\t\tKGH-UID HEX: "..dumpTable(tag.SEG[x].data, "", 46, 48))
	1349	print("\t\tBlock 4: "..dumpTable(tag.SEG[x].data, "", 49, 54))
	1350	print("checksum 4: Tag-ID .. KGH-UID .. Block 4 => LegicCrc8 = "..tag.SEG[x].data[55].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[x].data, "", 46, 54)), tag.SEG[x].data[55])..")")
	1351	print()
	1352	print("\t\tBlock 5: "..dumpTable(tag.SEG[x].data, "", 56, 61))
	1353	print("checksum 5: Tag-ID .. Block 5 => LegicCrc8 = "..tag.SEG[x].data[62].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[x].data, "", 56, 61)), tag.SEG[x].data[62])..")")
	1354	print()
	1355	print("\t\tBlock 6: "..dumpTable(tag.SEG[x].data, "", 63, 72))
	1356	print("checksum 6: Tag-ID .. Block 6 => LegicCrc8 = "..tag.SEG[x].data[73].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[x].data, "", 63, 72)), tag.SEG[x].data[73])..")")
	1357	print()
	1358	print("\t\tBlock 7: "..dumpTable(tag.SEG[x].data, "", 74, 88))
	1359	print("checksum 7: Tag-ID .. Block 7 => LegicCrc8 = "..tag.SEG[x].data[89].." ("..compareCrc(utils.Crc8Legic(uid..dumpTable(tag.SEG[x].data, "", 74, 88)), tag.SEG[x].data[89])..")")
	1360	print()
	1361	print("\t\tBlock 8: "..dumpTable(tag.SEG[x].data, "", 90, 94))
	1362	end
	1363	end
	1364
	1365	--- Token related --
	1366	---
	1367	-- make token
	1368	function makeToken()
	1369	local mt={
	1370	['Type'] = {"SAM", "SAM63", "SAM64", "IAM", "GAM"},
	1371	['DCF'] = {"60ea", "31fa", "30fa", "80fa", "f0fa"},
	1372	['WRP'] = {"15", "2", "2", "2", "2"},
	1373	['WRC'] = {"01", "02", "02", "00", "00"},
	1374	['RD'] = {"01", "00", "00", "00", "00"},
	1375	['Stamp'] = {"00", "00", "00", "00", "00"},
	1376	['Segment'] = {"0d", "c0", "04", "00", "be", "01", "02", "03", "04", "01", "02", "03", "04"}
	1377	}
	1378	ttype=""
	1379	for k, v in pairs(mt.Type) do
	1380	ttype=ttype..k..") "..v.." "
	1381	end
	1382	mtq=tonumber(input("select number for Token-Type\n"..ttype, '1'), 10)
	1383	if (type(mtq)~="number") then return print("selection invalid!")
	1384	elseif (mtq>#mt.Type) then return print("selection invalid!")
	1385	else print("Token-Type '"..mt.Type[mtq].."' selected") end
	1386	local raw=calcHeaderRaw(mt.WRP[mtq], mt.WRC[mtq], mt.RD[mtq])
	1387	local mtCRC="00"
	1388
	1389	bytes={"01", "02", "03", "04", "cb", string.sub(mt.DCF[mtq], 0, 2), string.sub(mt.DCF[mtq], 3), raw,
	1390	"00", "00", "00", "00", "00", "00", "00", "00",
	1391	"00", "00", "00", "00", "00", "00"}
	1392	if (mtq==1) then
	1393	for i=0, #mt.Segment do
	1394	table.insert(bytes, mt.Segment[i])
	1395	end
	1396	bytes[9]="ff"
	1397	end
	1398	-- fill bytes
	1399	for i=#bytes, 1023 do table.insert(bytes, "00") end
	1400	-- if Master-Token -> calc Master-Token-CRC
	1401	if (mtq>1) then bytes[22]=calcMtCrc(bytes) end
	1402	local tempTag=createTagTable()
	1403	-- remove segment if MasterToken
	1404	if (mtq>1) then tempTag.SEG[0]=nil end
	1405	return bytesToTag(bytes, tempTag)
	1406	end
	1407
	1408	---
	1409	-- edit token-data
	1410	function editTag(tag)
	1411	-- for simulation it makes sense to edit everything
	1412	local edit_sim="MCD MSN0 MSN1 MSN2 MCC DCFl DCFh WRP WRC RD"
	1413	-- on real tags it makes only sense to edit DCF, WRP, WRC, RD
	1414	local edit_real="DCFl DCFh WRP WRC RD"
	1415	if (confirm(acyellow.."do you want to edit non-writeable values (e.g. for simulation)?"..acoff)) then
	1416	edit_tag=edit_sim
	1417	else edit_tag=edit_real end
	1418
	1419	if(istable(tag)) then
	1420	for k,v in pairs(tag) do
	1421	if(type(v)~="table" and type(v)~="boolean" and string.find(edit_tag, k)) then
	1422	tag[k]=input("value for: "..accyan..k..acoff, v)
	1423	end
	1424	end
	1425
	1426	if (tag.Type=="SAM") then ttype="Header"; else ttype="Stamp"; end
	1427	if (confirm(acyellow.."do you want to edit "..ttype.." Data?"..acoff)) then
	1428	-- master-token specific
	1429	if(istable(tag.Bck)==false) then
	1430	-- stamp-data length=(0xfc-DCFh)
	1431	-- on MT: SSC holds the Starting Stamp Character (Stamp0)
	1432	tag.SSC=input(ttype.."0: ", tag.SSC)
	1433	-- rest of stamp-bytes are in tag.data 0..n
	1434	for i=0, (tonumber(0xfc ,10)-("%d"):format('0x'..tag.DCFh))-2 do
	1435	tag.data[i]=input(ttype.. i+1 ..": ", tag.data[i])
	1436	end
	1437	else
	1438	--- on credentials byte7 should always be 9f and byte8 ff
	1439	-- on Master-Token not (even on SAM63/64 not)
	1440	-- tag.SSC=input(ttype.."0: ", tag.SSC)
	1441	for i=0, #tag.data do
	1442	tag.data[i]=input(ttype.. i ..": ", tag.data[i])
	1443	end
	1444	end
	1445	end
	1446
	1447	bytes=tagToBytes(tag)
	1448
	1449	--- check data-consistency (calculate tag.raw)
	1450	bytes[8]=calcHeaderRaw(tag.WRP, tag.WRC, tag.RD)
	1451
	1452	--- Master-Token specific
	1453	-- should be triggered if a SAM was converted to a non-SAM (user-Token to Master-Token)
	1454	-- or a Master-Token has being edited (also SAM64 & SAM63 - which are in fact Master-Token)
	1455	if(tag.Type~="SAM" or bytes[6]..bytes[7]~="60ea") then
	1456	-- calc new Master-Token crc
	1457	bytes[22]=calcMtCrc(bytes)
	1458	else
	1459	-- ensure tag.SSC set to 'ff' on credential-token (SAM)
	1460	bytes[9]='ff'
	1461	-- if a Master-Token was converted to a Credential-Token
	1462	-- lets unset the Time-Area to 00 00 (will contain Stamp-Data on MT)
	1463	bytes[21]='00'
	1464	bytes[22]='00'
	1465	end
	1466
	1467	tag=bytesToTag(bytes, tag)
	1468	end
	1469	end
	1470
	1471	---
	1472	-- calculates header-byte (addr 0x07)
	1473	function calcHeaderRaw(wrp, wrc, rd)
	1474	local res
	1475	wrp=("%02x"):format(tonumber(wrp, 10))
	1476	rd=tonumber(rd, 16)
	1477	res=("%02x"):format(tonumber(wrp, 16)+tonumber(wrc.."0", 16)+((rd>0) and tonumber("8"..(rd-1), 16) or 0))
	1478	return res
	1479	end
	1480
	1481	---
	1482	-- determine TagType (bits 0..6 of DCFlow)
	1483	function getTokenType(DCFl)
	1484	--[[
	1485	0x00–0x2f IAM
	1486	0x30–0x6f SAM
	1487	0x70–0x7f GAM
	1488	]]--
	1489	local tt = tonumber(bbit("0x"..DCFl,0,7),10)
	1490	if (tt >= 0 and tt <= 47) then tt = "IAM"
	1491	elseif (tt == 49) then tt = "SAM63"
	1492	elseif (tt == 48) then tt = "SAM64"
	1493	elseif (tt >= 50 and tt <= 111) then tt = "SAM"
	1494	elseif (tt >= 112 and tt <= 127) then tt = "GAM"
	1495	else tt = "???" end
	1496	return tt
	1497	end
	1498
	1499	---
	1500	-- clear beackup-area of a virtual tag
	1501	function clearBackupArea(tag)
	1502	for i=1, #tag.Bck do
	1503	tag.Bck[i]='00'
	1504	end
	1505	return tag
	1506	end
	1507
	1508	--- Segment related --
	1509	---
	1510	-- get segmemnt-data from byte-table
	1511	function getSegmentData(bytes, start, index)
	1512	local segment={
	1513	['index'] = '00',
	1514	['flag'] = 'c',
	1515	['valid'] = 0,
	1516	['last'] = 0,
	1517	['len'] = 13,
	1518	['raw'] = {'00', '00', '00', '00'},
	1519	['WRP'] = 4,
	1520	['WRC'] = 0,
	1521	['RD'] = 0,
	1522	['crc'] = '00',
	1523	['data'] = {},
	1524	['kgh'] = false
	1525	}
	1526	if (bytes[start]) then
	1527	local i
	1528	-- #index
	1529	segment.index = index
	1530	-- flag = high nibble of byte 1
	1531	segment.flag = string.sub(bytes[start+1],0,1)
	1532	-- valid = bit 6 of byte 1
	1533	segment.valid = bbit("0x"..bytes[start+1],6,1)
	1534	-- last = bit 7 of byte 1
	1535	segment.last = bbit("0x"..bytes[start+1],7,1)
	1536	-- len = (byte 0)+(bit0-3 of byte 1)
	1537	segment.len = tonumber(bbit("0x"..bytes[start+1],0,4)..bytes[start],16)
	1538	-- raw segment header
	1539	segment.raw = {bytes[start], bytes[start+1], bytes[start+2], bytes[start+3]}
	1540	-- wrp (write proteted) = byte 2
	1541	segment.WRP = tonumber(bytes[start+2],16)
	1542	-- wrc (write control) - bit 4-6 of byte 3
	1543	segment.WRC = tonumber(bbit("0x"..bytes[start+3],4,3),16)
	1544	-- rd (read disabled) - bit 7 of byte 3
	1545	segment.RD = tonumber(bbit("0x"..bytes[start+3],7,1),16)
	1546	-- crc byte 4
	1547	segment.crc = bytes[start+4]
	1548	-- segment-data starts at segment.len - segment.header - segment.crc
	1549	for i=0, (segment.len-5) do
	1550	segment.data[i]=bytes[start+5+i]
	1551	end
	1552	return segment
	1553	else return false;
	1554	end
	1555	end
	1556
	1557	---
	1558	-- get index, start-aadr, length and content
	1559	function getSegmentStats(bytes)
	1560	local sStats = {}
	1561	local sValid, sLast, sLen, sStart, x
	1562	sStart=23
	1563	x=0
	1564	repeat
	1565	local s={}
	1566	-- valid = bit 6 of byte 1
	1567	sValid = bbit("0x"..bytes[sStart+1],6,1)
	1568	-- last = bit 7 of byte 1
	1569	sLast = bbit("0x"..bytes[sStart+1],7,1)
	1570	-- len = (byte 0)+(bit0-3 of byte 1)
	1571	sLen = tonumber(bbit("0x"..bytes[sStart+1],0,4)..bytes[sStart],16)
	1572	--print("index: "..("%02d"):format(x).." Len: "..sLen.." start:"..sStart.." end: "..(sStart+sLen-1))
	1573	s['index']=x
	1574	s['start']=sStart
	1575	s['end']=sStart+sLen-1
	1576	s['len']=sLen
	1577	if ( (sStart+sLen-1)>sStart ) then
	1578	table.insert(sStats, s)
	1579	end
	1580	sStart=sStart+sLen
	1581	x=x+1
	1582	until (sLast==1 or sValid==0 or x==126)
	1583	if (#sStats>0 ) then return sStats
	1584	else return false; end
	1585	end
	1586
	1587	---
	1588	-- regenerate segment-header (after edit)
	1589	function regenSegmentHeader(segment)
	1590	local seg=segment
	1591	local raw = segment.raw
	1592	local i
	1593	-- len bit0..7 \| len=12bit=low nibble of byte1..byte0
	1594	raw[1]=("%02x"):format(bbit("0x"..("%03x"):format(seg.len),0,8))
	1595	-- high nibble of len bit6=valid , bit7=last of byte 1 \| ?what are bit 5+6 for? maybe kgh?
	1596	raw[2]=("%02x"):format(bbit("0x"..("%03x"):format(seg.len),8,4)+bbit("0x"..("%02x"):format((seg.valid64)+(seg.last128)),0,8))
	1597	-- WRP
	1598	raw[3]=("%02x"):format(bbit("0x"..("%02x"):format(seg.WRP),0,8))
	1599	-- WRC + RD
	1600	raw[4]=("%02x"):format(tonumber((seg.WRC16)+(seg.RD128),10))
	1601	-- flag
	1602	seg.flag=string.sub(raw[2],0,1)
	1603	--print(raw[1].." "..raw[2].." "..raw[3].." "..raw[4])
	1604	if(#seg.data>(seg.len-5)) then
	1605	print("current payload: ".. #seg.data .." - desired payload: ".. seg.len-5)
	1606	print(acyellow.."Data-Length has being reduced:"..acgreen.." auto-removing "..acyellow.. #seg.data-(seg.len-5) ..acgreen .." bytes from Payload!"..acoff);
	1607	for i=(seg.len-5), #seg.data-1 do
	1608	table.remove(seg.data)
	1609	end
	1610	elseif (#seg.data<(seg.len-5)) then
	1611	print("current payload: ".. #seg.data .." - desired payload: ".. seg.len-5)
	1612	print(acyellow.."Data-Length has being extended:"..acgreen.." auto-adding "..acyellow..(seg.len-5)-#seg.data ..acgreen .." bytes to Payload!"..acoff);
	1613	for i=#seg.data, (seg.len-5-1) do
	1614	table.insert(seg.data, '00')
	1615	end
	1616	end
	1617	return seg
	1618	end
	1619
	1620	---
	1621	-- edit segment helper
	1622	function editSegment(tag, index)
	1623	local k,v
	1624	local edit_possible="valid len RD WRP WRC Stamp Payload"
	1625	if (istable(tag.SEG[index])) then
	1626	for k,v in pairs(tag.SEG[index]) do
	1627	if(string.find(edit_possible,k)) then
	1628	tag.SEG[index][k]=tonumber(input(accyan..k..acoff..": ", v),10)
	1629	end
	1630	end
	1631	else print("Segment with Index: "..("%02d"):format(index).." not found in Tag")
	1632	return false
	1633	end
	1634	regenSegmentHeader(tag.SEG[index])
	1635	print("\n"..dumpSegment(tag, index).."\n")
	1636	return tag
	1637	end
	1638
	1639	---
	1640	-- edit Segment Data
	1641	function editSegmentData(data)
	1642	local lc=check4LegicCash(data)
	1643	io.write("\n")
	1644	if (istable(data)) then
	1645	for i=0, #data-1 do
	1646	data[i]=input(accyan.."Data"..i..acoff..": ", data[i])
	1647	end
	1648	if (lc) then data=fixLegicCash(data) end
	1649	return data
	1650	else
	1651	print("no Segment-Data found")
	1652	end
	1653	end
	1654
	1655	---
	1656	-- list available segmets in virtual tag
	1657	function segmentList(tag)
	1658	local i
	1659	local res = ""
	1660	if (istable(tag.SEG[0])) then
	1661	for i=0, #tag.SEG do
	1662	res = res .. tag.SEG[i].index .. " "
	1663	end
	1664	return res
	1665	else print("no Segments found in Tag")
	1666	return false
	1667	end
	1668	end
	1669
	1670	---
	1671	-- helper to selecting a segment
	1672	function selectSegment(tag)
	1673	local sel
	1674	if (istable(tag.SEG[0])) then
	1675	print("availabe Segments:\n"..segmentList(tag))
	1676	sel=input("select Segment: ", '00')
	1677	sel=tonumber(sel,10)
	1678	if (sel) then return sel
	1679	else return '0' end
	1680	else
	1681	print("\nno Segments found")
	1682	return false
	1683	end
	1684	end
	1685
	1686	---
	1687	-- add segment
	1688	function addSegment(tag)
	1689	local i
	1690	local segment={
	1691	['index'] = '00',
	1692	['flag'] = 'c',
	1693	['valid'] = 1,
	1694	['last'] = 1,
	1695	['len'] = 13,
	1696	['raw'] = {'0d', '40', '04', '00'},
	1697	['WRP'] = 4,
	1698	['WRC'] = 0,
	1699	['RD'] = 0,
	1700	['crc'] = '00',
	1701	['data'] = {},
	1702	['kgh'] = false
	1703	}
	1704	if (istable(tag.SEG[0])) then
	1705	tag.SEG[#tag.SEG].last=0
	1706	table.insert(tag.SEG, segment)
	1707	for i=0, 8 do
	1708	tag.SEG[#tag.SEG].data[i]=("%02x"):format(i)
	1709	end
	1710	tag.SEG[#tag.SEG].index=("%02d"):format(#tag.SEG)
	1711	return tag
	1712	else
	1713	print("no Segment-Table found")
	1714	end
	1715	end
	1716
	1717	---
	1718	-- get only the stamp-bytes of a segment
	1719	function getSegmentStamp(seg, bytes)
	1720	local stamp=""
	1721	local stamp_len=7
	1722	--- the 'real' stamp on MIM is not really easy to tell for me since the 'data-block' covers stamp0..stampn+data0..datan
	1723	-- there a no stamps longer than 7 bytes & they are write-protected by default , and I have not seen user-credntials
	1724	-- with stamps smaller 3 bytes (except: Master-Token)
	1725	-- WRP -> Read/Write Protection
	1726	-- WRC -> Read/Write Condition
	1727	-- RD depends on WRC - if WRC > 0 and RD=1: only reader with matching #WRC of Stamp-bytes in thier Database have Read-Access to the Tag
	1728	if (seg.WRP<7) then stamp_len=(seg.WRP) end
	1729	for i=1, (stamp_len) do
	1730	stamp=stamp..seg.data[i-1]
	1731	end
	1732	if (bytes) then
	1733	stamp=str2bytes(stamp)
	1734	return stamp
	1735	else return stamp end
	1736	end
	1737
	1738	---
	1739	-- edit stamp of a segment
	1740	function editStamp(new_stamp, uid, data)
	1741	local stamp=str2bytes(new_stamp)
	1742	for i=0, #stamp-1 do
	1743	data[i]=stamp[i+1]
	1744	end
	1745	-- now fill in stamp
	1746	for i=0, (string.len(new_stamp)/2)-1 do
	1747	data[i]=stamp[i+1]
	1748	end
	1749	return fix3rdPartyCash1(uid, data)
	1750	end
	1751
	1752	---
	1753	-- autoselect special/known segments
	1754	function autoSelectSegment(tag, s)
	1755	local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
	1756	local x=#tag.SEG+1
	1757	local res = false
	1758	io.write("autoSelect ")
	1759	--- search for desired segment-type
	1760	-- 3rd Party Segment
	1761	if (s=="3rdparty") then
	1762	repeat
	1763	io.write(". ")
	1764	x=x-1
	1765	res=check43rdPartyCash1(uid, tag.SEG[x].data)
	1766	until ( res or x==0 )
	1767	end
	1768	-- Legic-Cash Segment
	1769	if (s=="legiccash") then
	1770	repeat
	1771	io.write(". ")
	1772	x=x-1
	1773	res=check4LegicCash(tag.SEG[x].data)
	1774	until ( res or x==0 )
	1775	end
	1776	---
	1777	-- segment found
	1778	if (res) then
	1779	io.write("\nautoselected Index: "..string.format("%02d", x).."\n")
	1780	return x
	1781	end
	1782	---
	1783	-- nothing found
	1784	io.write(acyellow.."no Segment found\n"..acoff)
	1785	return -1
	1786	end
	1787
	1788	---
	1789	-- delete segment (except segment 00)
	1790	function delSegment(tag, index)
	1791	if (istable(tag.SEG[0])) then
	1792	local i
	1793	if (type(index)=="string") then index=tonumber(index,10) end
	1794	if (index > 0) then
	1795	table.remove(tag.SEG, index)
	1796	for i=0, #tag.SEG do
	1797	tag.SEG[i].index=("%02d"):format(i)
	1798	end
	1799	end
	1800	if(istable(tag.SEG[#tag.SEG])) then tag.SEG[#tag.SEG].last=1 end
	1801	return tag
	1802	end
	1803	end
	1804
	1805	---
	1806	-- edit uid 3rd party cash
	1807	function edit3rdUid(mapid, uid, data)
	1808	mapid=("%06x"):format(tonumber(mapid, 10))
	1809	data[46]=string.sub(mapid, 1 ,2)
	1810	data[47]=string.sub(mapid, 3 ,4)
	1811	data[48]=string.sub(mapid, 5 ,6)
	1812	return fix3rdPartyCash1(uid, data)
	1813	end
	1814
	1815	---
	1816	-- edit balance 3rd party cash
	1817	function edit3rdCash(new_cash, uid, data)
	1818	new_cash=("%04x"):format(new_cash)
	1819	data[32]=string.sub(new_cash, 0,2)
	1820	data[33]=string.sub(new_cash, 3,4)
	1821	data[34]=("%02x"):format(utils.Crc8Legic(uid..new_cash))
	1822	data[35]=string.sub(new_cash, 0,2)
	1823	data[36]=string.sub(new_cash, 3,4)
	1824	data[37]=("%02x"):format(utils.Crc8Legic(uid..new_cash))
	1825	data[39]=string.sub(new_cash, 0,2)
	1826	data[40]=string.sub(new_cash, 3,4)
	1827	data[41]='00'
	1828	data[42]='00'
	1829	data[43]='00'
	1830	data[44]='00'
	1831	return fix3rdPartyCash1(uid, data)
	1832	end
	1833
	1834	---
	1835	-- edit 3rd-party cash
	1836	function edit3rdPartyCash1(tag, x)
	1837	local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
	1838	if (confirm("\nedit Balance?")) then
	1839	local new_cash=input("enter new Balance≤\nwithout comma and without currency-sign! (0-65535)", "100")
	1840	tag.SEG[x].data=edit3rdCash(new_cash, uid, tag.SEG[x].data)
	1841	end
	1842	-- change User-ID (used for online-account-mapping)
	1843	if (confirm("\nedit UserID-Mapping?")) then
	1844	local new_mapid=input("enter new UserID (6-digit value)", "012345")
	1845	tag.SEG[x].data=edit3rdUid(new_mapid, uid, tag.SEG[x].data)
	1846	end
	1847	if (confirm("\nedit Stamp?")) then
	1848	local new_stamp=input("enter new Stamp", getSegmentStamp(tag.SEG[x]))
	1849	tag.SEG[x].data=editStamp(new_stamp, uid, tag.SEG[x].data)
	1850	new_stamp=getSegmentStamp(tag.SEG[x], 'true')
	1851	print("stamp_bytes: "..#new_stamp)
	1852	-- replace stamp in 'block 1' also
	1853	io.write("editing stamp in Block 1 also ")
	1854	for i=20, (20+#new_stamp-1) do
	1855	tag.SEG[x].data[i]=new_stamp[i-19]
	1856	io.write(".");
	1857	end
	1858	print(" done")
	1859	-- fix known checksums
	1860	tag.SEG[x].data=fix3rdPartyCash1(uid, tag.SEG[x].data)
	1861	end
	1862	return tag
	1863	end
	1864
	1865	---
	1866	-- edit Legic Cash
	1867	function editLegicCash(data)
	1868	local limit, curr, balance, rid, tcv
	1869	-- currency of balance & limit
	1870	curr=currency[data[8]..data[9]]
	1871	-- maximum balance
	1872	limit=string.format("%4.2f", tonumber(data[10]..data[11]..data[12], 16)/100)
	1873	-- current balance
	1874	balance=string.format("%4.2f", tonumber(data[15]..data[16]..data[17], 16)/100)
	1875	-- reader-id who wrote last transaction
	1876	rid=tonumber(data[18]..data[19]..data[20], 16)
	1877	-- transaction counter value
	1878	tcv=tonumber(data[29], 16)
	1879
	1880	-- edit currency
	1881	if (confirm(accyan.."change Currency?"..acoff)) then
	1882	for k, v in pairs(currency) do io.write(k .. " = " .. v .. "\n") end
	1883	curr=input(accyan.."enter the 4-digit Hex for the new Currency:"..acoff, data[8]..data[9])
	1884	data[8]=string.sub(curr, 1, 2)
	1885	data[9]=string.sub(curr, 3, 4)
	1886	end
	1887
	1888	-- edit limit
	1889	if (confirm(accyan.."change Limit?"..acoff)) then
	1890	limit=string.format("%06x", input(accyan.."enter the Decimal for the new Limit:"..acoff, limit))
	1891	data[10]=string.sub(limit, 1, 2)
	1892	data[11]=string.sub(limit, 3, 4)
	1893	data[12]=string.sub(limit, 5, 6)
	1894	end
	1895
	1896	-- edit balance
	1897	if (confirm(accyan.."change Balance?"..acoff)) then
	1898	balance=string.format("%06x", input(accyan.."enter the Decimal for the new Balance:"..acoff, balance))
	1899	print("Balance: "..balance)
	1900	data[15]=string.sub(balance, 1, 2)
	1901	data[16]=string.sub(balance, 3, 4)
	1902	data[17]=string.sub(balance, 5, 6)
	1903	end
	1904
	1905	-- edit transaction-counter
	1906	if (confirm(accyan.."change Transaction-Counter?"..acoff)) then
	1907	tcv=string.format("%02x", input(accyan.."enter the 4-digit Hex for the new Currency:"..acoff, data[29]))
	1908	data[29]=tcv
	1909	end
	1910
	1911	-- edit reader.id
	1912	if (confirm(accyan.."change Last-Reader-ID?"..acoff)) then
	1913	rid=string.format("%06x", input(accyan.."enter the Decimal for the new Balance:"..acoff, rid))
	1914	print("Balance: "..balance)
	1915	data[18]=string.sub(rid, 1, 2)
	1916	data[19]=string.sub(rid, 3, 4)
	1917	data[20]=string.sub(rid, 5, 6)
	1918	end
	1919
	1920	return fixLegicCash(data)
	1921	end
	1922
	1923	---
	1924	-- chack for signature of a 'Legic-Cash-Segment'
	1925	function check4LegicCash(data)
	1926	if(#data==32) then
	1927	local stamp_len=(#data-25)
	1928	local stamp=""
	1929	for i=0, stamp_len-1 do
	1930	stamp=stamp..data[i].." "
	1931	end
	1932	if (data[7]=="01") then
	1933	if (("%04x"):format(utils.Crc16(dumpTable(data, "", 0, 12))) == data[13]..data[14]) then
	1934	if (("%04x"):format(utils.Crc16(dumpTable(data, "", 15, 20))) == data[21]..data[22]) then
	1935	if (("%04x"):format(utils.Crc16(dumpTable(data, "", 23, 29))) == data[30]..data[31]) then
	1936	io.write(accyan.."Legic-Cash Segment detected "..acoff)
	1937	return true
	1938	end
	1939	end
	1940	end
	1941	end
	1942	end
	1943	return false
	1944	end
	1945
	1946	---
	1947	-- chack for signature of a '3rd Party Cash-Segment' - not all bytes know until yet !!
	1948	function check43rdPartyCash1(uid, data)
	1949	if(#data==95) then
	1950	-- too explicit checking will avoid fixing ;-)
	1951	if (string.find(compareCrc(utils.Crc8Legic(uid..dumpTable(data, "", 19, 30)), data[31]),"valid")) then
	1952	--if (compareCrc(utils.Crc8Legic(uid..data[32]..data[33]), data[34])=="valid") then
	1953	--if (compareCrc(utils.Crc8Legic(uid..data[35]..data[36]), data[37])=="valid") then
	1954	--if (compareCrc(utils.Crc8Legic(uid..dumpTable(data, "", 56, 61)), data[62])=="valid") then
	1955	--if (compareCrc(utils.Crc8Legic(uid..dumpTable(data, "", 74, 88)), data[89])=="valid") then
	1956	io.write(accyan.."3rd Party Cash-Segment detected "..acoff)
	1957	return true
	1958	--end
	1959	--end
	1960	--end
	1961	--end
	1962	end
	1963	end
	1964	return false
	1965	end
	1966
	1967	--- CRC related ---
	1968	---
	1969	-- build segmentCrc credentials
	1970	function segmentCrcCredentials(tag, segid)
	1971	if (istable(tag.SEG[0])) then
	1972	local cred = tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
	1973	cred = cred ..tag.SEG[segid].raw[1]..tag.SEG[segid].raw[2]..tag.SEG[segid].raw[3]..tag.SEG[segid].raw[4]
	1974	return cred
	1975	else return print(acyellow.."Master-Token / unsegmented Tag!"..acoff) end
	1976	end
	1977
	1978	---
	1979	-- build kghCrc credentials
	1980	function kghCrcCredentials(tag, segid)
	1981	if (istable(tag) and istable(tag.SEG[0])) then
	1982	local x='00'
	1983	if (type(segid)=="string") then segid=tonumber(segid,10) end
	1984	if (segid>0) then x='93' end
	1985	local cred = tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2..("%02x"):format(tag.SEG[segid].WRP)
	1986	cred = cred..("%02x"):format(tag.SEG[segid].WRC)..("%02x"):format(tag.SEG[segid].RD)..x
	1987	for i=0, #tag.SEG[segid].data-2 do
	1988	cred = cred..tag.SEG[segid].data[i]
	1989	end
	1990	return cred
	1991	end
	1992	end
	1993
	1994	---
	1995	-- compare two bytes
	1996	function compareCrc(calc, guess)
	1997	calc=("%02x"):format(calc)
	1998	if (calc==guess) then return acgreen.."valid"..acoff
	1999	else return acred.."error "..acoff..calc.."!="..guess end
	2000	end
	2001
	2002	---
	2003	-- compare 4 bytes
	2004	function compareCrc16(calc, guess)
	2005	calc=("%04x"):format(calc)
	2006	if (calc==guess) then return acgreen.."valid"..acoff
	2007	else return acred.."error "..acoff..calc.."!="..guess end
	2008	end
	2009
	2010	---
	2011	-- repair / fix crc's of a 'Legic-Cash-Segment'
	2012	function fixLegicCash(data)
	2013	if(#data==32 and data[7]=="01") then
	2014	local crc1, crc2, crc3
	2015	-- set shadow-balance equal to balance
	2016	data[23]=data[15]
	2017	data[24]=data[16]
	2018	data[25]=data[17]
	2019	-- set shadow-last-reader to last-reader
	2020	data[26]=data[18]
	2021	data[27]=data[19]
	2022	data[28]=data[20]
	2023	-- calculate all crc's
	2024	crc1=("%04x"):format(utils.Crc16(dumpTable(data, "", 0, 12)))
	2025	crc2=("%04x"):format(utils.Crc16(dumpTable(data, "", 15, 20)))
	2026	crc3=("%04x"):format(utils.Crc16(dumpTable(data, "", 23, 29)))
	2027	-- set crc's
	2028	data[13]=string.sub(crc1, 1, 2)
	2029	data[14]=string.sub(crc1, 3, 4)
	2030	data[21]=string.sub(crc2, 1, 2)
	2031	data[22]=string.sub(crc2, 3, 4)
	2032	data[30]=string.sub(crc3, 1, 2)
	2033	data[31]=string.sub(crc3, 3, 4)
	2034	return data
	2035	end
	2036	end
	2037
	2038	---
	2039	-- repair / fix (yet known) crc's of a '3rd Party Cash-Segment' - not all bytes know until yet !!
	2040	function fix3rdPartyCash1(uid, data)
	2041	if(#data==95) then
	2042	-- checksum 1
	2043	data[31]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 19, 30)))
	2044	-- checksum 2
	2045	data[34]=("%02x"):format(utils.Crc8Legic(uid..data[32]..data[33]))
	2046	-- checksum 3
	2047	data[37]=("%02x"):format(utils.Crc8Legic(uid..data[35]..data[36]))
	2048	-- checksum 4
	2049	data[55]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 46, 54)))
	2050	-- checksum 5
	2051	data[62]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 56, 61)))
	2052	-- checksum 6
	2053	data[73]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 63, 72)))
	2054	-- checksum 7
	2055	data[89]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 74, 88)))
	2056	return data
	2057	end
	2058	end
	2059
	2060	---
	2061	-- calculate Master-Token crc
	2062	function calcMtCrc(bytes)
	2063	--print(#bytes)
	2064	local cmd=bytes[1]..bytes[2]..bytes[3]..bytes[4]..bytes[7]..bytes[6]..bytes[8]
	2065	local len=(tonumber(0xfc ,10)-("%d"):format('0x'..bytes[7]))
	2066	for i=1, len do
	2067	cmd=cmd..bytes[8+i]
	2068	end
	2069	local res=("%02x"):format(utils.Crc8Legic(cmd))
	2070	return res
	2071	end
	2072
	2073	---
	2074	-- calculate segmentCRC for a given segment
	2075	function calcSegmentCrc(tag, segid)
	2076	if (istable(tag.SEG[0])) then
	2077	-- check if a 'Kaber Group Header' exists
	2078	local data=segmentCrcCredentials(tag, segid)
	2079	return ("%02x"):format(utils.Crc8Legic(data))
	2080	end
	2081	end
	2082
	2083	---
	2084	-- calcuate kghCRC for a given segment
	2085	function calcKghCrc(tag, segid)
	2086	if (istable(tag.SEG[0])) then
	2087	-- check if a 'Kaber Group Header' exists
	2088	local i
	2089	local data=kghCrcCredentials(tag, segid)
	2090	return ("%02x"):format(utils.Crc8Legic(data))
	2091	end
	2092	end
	2093
	2094	---
	2095	-- check all segmnet-crc
	2096	function checkAllSegCrc(tag)
	2097	if (istable(tag.SEG[0])) then
	2098	for i=0, #tag.SEG do
	2099	crc=calcSegmentCrc(tag, i)
	2100	tag.SEG[i].crc=crc
	2101	end
	2102	else return print(acyellow.."Master-Token / unsegmented Tag"..acoff) end
	2103	end
	2104
	2105	---
	2106	-- check all segmnet-crc
	2107	function checkAllKghCrc(tag)
	2108	if (istable(tag.SEG[0])) then
	2109	for i=0, #tag.SEG do
	2110	crc=calcKghCrc(tag, i)
	2111	if (tag.SEG[i].kgh) then
	2112	tag.SEG[i].data[#tag.SEG[i].data-1]=crc
	2113	end
	2114	end
	2115	end
	2116	end
	2117
	2118	---
	2119	-- validate segmentCRC for a given segment
	2120	function checkSegmentCrc(tag, segid)
	2121	local data=segmentCrcCredentials(tag, segid)
	2122	if (("%02x"):format(utils.Crc8Legic(data))==tag.SEG[segid].crc) then
	2123	return true
	2124	end
	2125	return false
	2126	end
	2127
	2128	---
	2129	-- validate kghCRC to segment in tag-table
	2130	function checkKghCrc(tag, segid)
	2131	if (type(tag.SEG[segid])=='table') then
	2132	if (tag.data[3]=="11" and tag.raw=="9f" and tag.SSC=="ff") then
	2133	local data=kghCrcCredentials(tag, segid)
	2134	if (("%02x"):format(utils.Crc8Legic(data))==tag.SEG[segid].data[tag.SEG[segid].len-5-1]) then return true; end
	2135	else return false; end
	2136	else oops(acred.."'Kaba Group header' detected but no Segment-Data found"..ansocolors.reset) end
	2137	end
	2138
	2139	---
	2140	-- helptext for modify-mode
	2141	function modifyHelp()
	2142	local t=[[
	2143
	2144	Data I/O Segment Manipulation Token-Data
	2145	----------------- -------------------- ---------------------
	2146	rt => read Tag as => add Segment mt => make Token
	2147	wt => write Tag es => edit Segment Header et => edit Token data
	2148	ed => edit Segment Data tk => toggle KGH-Flag
	2149	File I/O rs => remove Segment
	2150	----------------- cc => check Segment-CRC
	2151	lf => load File ck => check KGH
	2152	sf => save File ds => dump Segments
	2153	xf => xor to File
	2154
	2155
	2156	Virtual Tags tagMap (partial) known Segments
	2157	-------------------------------- --------------------- ---------------------------
	2158	ct => copy mainTag to backupTag mm => make (new) Map dlc => dump Legic-Cash
	2159	tc => copy backupTag to mainTag em => edit Map submenu elc => edit Legic-Cash
	2160	tt => switch mainTag & backupTag lm => load map from file d3p => dump 3rd-Party-Cash
	2161	di => dump mainTag sm => save map to file e3p => edit 3rd-Party-Cash
	2162	do => dump backupTag
	2163
	2164	h => this help q => quit
	2165	]]
	2166	return t
	2167	end
	2168
	2169	---
	2170	-- modify Tag (interactive)
	2171	function modifyMode()
	2172	local i, backupTAG, outTAG, inTAG, outfile, infile, sel, segment, bytes, outbytes, tagMap
	2173
	2174	actions = {
	2175	---
	2176	-- helptext
	2177	["h"] = function(x)
	2178	print(" Version: "..version);
	2179	print(modifyHelp().."\n".."tags im Memory: "..(istable(inTAG) and ((currentTag=='inTAG') and acgreen.."mainTAG"..acoff or "mainTAG") or "").." "..(istable(backupTAG) and ((currentTag=='backupTAG') and acgreen.."backupTAG"..acoff or "backupTAG") or ""))
	2180	end,
	2181	---
	2182	-- read real Tag with PM3 into virtual 'mainTAG'
	2183	["rt"] = function(x)
	2184	inTAG=readFromPM3();
	2185	--actions.di()
	2186	end,
	2187	---
	2188	-- write content of virtual 'mainTAG' to real Tag with PM3
	2189	["wt"] = function(x)
	2190	writeToTag(inTAG)
	2191	end,
	2192	---
	2193	-- copy mainTAG to backupTAG
	2194	["ct"] = function(x)
	2195	print(accyan.."copy mainTAG to backupTAG"..acoff)
	2196	backupTAG=deepCopy(inTAG)
	2197	end,
	2198	---
	2199	-- copy backupTAG to mainTAG
	2200	["tc"] = function(x)
	2201	print(accyan.."copy backupTAG to mainTAG"..acoff)
	2202	inTAG=deepCopy(backupTAG)
	2203	end,
	2204	---
	2205	-- toggle between mainTAG and backupTAG
	2206	["tt"] = function(x)
	2207	-- copy main to temp
	2208	outTAG=deepCopy(inTAG)
	2209	-- copy backup to main
	2210	inTAG=deepCopy(backupTAG)
	2211	print(accyan.."toggle to "..accyan..((currentTag=='inTAG') and "backupTAG" or "mainTAG")..acoff)
	2212	if(currentTag=="inTAG") then currentTag='backupTAG'
	2213	else currentTag='inTAG' end
	2214	-- copy temp (main) to backup
	2215	backupTAG=deepCopy(outTAG)
	2216	end,
	2217	---
	2218	-- load file into mainTAG
	2219	["lf"] = function(x)
	2220
	2221	if (type(x)=='string' and file_check(x)) then filename=x
	2222	else filename=input("enter filename: ", "legic.temp") end
	2223	inTAG=readFile(filename)
	2224	-- check for existing tagMap
	2225	if (file_check(filename..".map")) then
	2226	if(confirm(accyan.."Mapping-File for "..acoff..filename..accyan.." found - load it also?"..acoff)) then
	2227	tagMap=loadTagMap(filename..".map")
	2228	end
	2229	end
	2230	end,
	2231	---
	2232	-- save values of mainTAG to a file (xored with MCC of mainTAG)
	2233	["sf"] = function(x)
	2234	if(istable(inTAG)) then
	2235	outfile=input("enter filename:", "legic.temp")
	2236	bytes=tagToBytes(inTAG)
	2237	--bytes=xorBytes(bytes, inTAG.MCC)
	2238	if (bytes) then
	2239	writeFile(bytes, outfile)
	2240	end
	2241	end
	2242	end,
	2243	---
	2244	-- save values of mainTAG to a file (xored with 'specific' MCC)
	2245	["xf"] = function(x)
	2246	if(istable(inTAG)) then
	2247	outfile=input("enter filename:", "legic.temp")
	2248	crc=input("enter new crc: ('00' for a plain dump)", inTAG.MCC)
	2249	print("obfuscate witth: "..crc)
	2250	bytes=tagToBytes(inTAG)
	2251	bytes[5]=crc
	2252	if (bytes) then
	2253	writeFile(bytes, outfile)
	2254	end
	2255	end
	2256	end,
	2257	---
	2258	-- dump mainTAG (and all Segments)
	2259	["di"] = function(x)
	2260	if (istable(inTAG)) then
	2261	local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
	2262	if(istable(inTAG.SEG[0])) then
	2263	for i=0, #inTAG.SEG do
	2264	if(check43rdPartyCash1(uid, inTAG.SEG[i].data)) then
	2265	io.write(accyan.."in Segment index: "..inTAG.SEG[i].index ..acoff.. "\n")
	2266	elseif(check4LegicCash(inTAG.SEG[i].data)) then
	2267	io.write(accyan.."in Segment index: "..inTAG.SEG[i].index..acoff.."\n")
	2268	lc=true;
	2269	lci=inTAG.SEG[i].index;
	2270	end
	2271	end
	2272	end
	2273	print("\n"..dumpTag(inTAG).."\n")
	2274	if (lc) then actions["dlc"](lci) end
	2275	lc=false
	2276	end
	2277	end,
	2278	---
	2279	-- dump backupTAG (and all Segments)
	2280	["do"] = function(x) if (istable(backupTAG)) then print("\n"..dumpTag(backupTAG).."\n") end end,
	2281	---
	2282	-- create a empty tagMap
	2283	["mm"] = function(x)
	2284	-- clear existing tagMap and init
	2285	if (istable(inTAG)) then
	2286	tagMap=makeTagMap()
	2287	end
	2288	end,
	2289	---
	2290	-- edit a tagMap
	2291	["em"] = function(x)
	2292	if (istable(inTAG)==false) then
	2293	if (confirm("no mainTAG in memory!\nread from PM3?")) then
	2294	actions['rt']()
	2295	elseif (confirm("load from File?")) then
	2296	actions['lf']()
	2297	else return
	2298	end
	2299	end
	2300	if (istable(tagMap)==false) then actions['mm']() end
	2301	-- edit
	2302	tagMap=editTagMap(inTAG, tagMap)
	2303	end,
	2304	---
	2305	-- save a tagMap
	2306	["sm"] = function(x)
	2307	if (istable(tagMap)) then
	2308	if (istable(tagMap) and #tagMap.mappings>0) then
	2309	print(accyan.."Map contains "..acoff..#tagMap..accyan.." mappings"..acoff)
	2310	saveTagMap(tagMap, input(accyan.."enter filename:"..acoff, "Legic.map"))
	2311	else
	2312	print(acyellow.."no mappings in tagMap!"..acoff)
	2313	end
	2314	end
	2315	end,
	2316	---
	2317	-- load a tagMap
	2318	["lm"] = function(x)
	2319	tagMap=loadTagMap(input(accyan.."enter filename:"..acoff, "Legic.map"))
	2320	end,
	2321	---
	2322	-- dump single segment
	2323	["ds"] = function(x)
	2324	if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
	2325	else sel=selectSegment(inTAG) end
	2326	if (sel) then print("\n"..(dumpSegment(inTAG, sel) or acred.."no Segments available") ..acoff.."\n") end
	2327	end,
	2328	---
	2329	-- edit segment header
	2330	["es"] = function(x)
	2331	if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
	2332	else sel=selectSegment(inTAG) end
	2333	if (sel) then
	2334	if(istable(inTAG.SEG[0])) then
	2335	inTAG=editSegment(inTAG, sel)
	2336	inTAG.SEG[sel]=regenSegmentHeader(inTAG.SEG[sel])
	2337	else print(acyellow.."no Segments in Tag"..acoff) end
	2338	end
	2339	end,
	2340	---
	2341	-- add segment
	2342	["as"] = function(x)
	2343	if (istable(inTAG.SEG[0])) then
	2344	inTAG=addSegment(inTAG)
	2345	inTAG.SEG[#inTAG.SEG-1]=regenSegmentHeader(inTAG.SEG[#inTAG.SEG-1])
	2346	inTAG.SEG[#inTAG.SEG]=regenSegmentHeader(inTAG.SEG[#inTAG.SEG])
	2347	else print(accyan.."Master-Token / unsegmented Tag!"..acoff)
	2348	end
	2349	end,
	2350	---
	2351	-- remove segment
	2352	["rs"] = function(x)
	2353	if (istable(inTAG.SEG[0])) then
	2354	if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
	2355	else sel=selectSegment(inTAG) end
	2356	inTAG=delSegment(inTAG, sel)
	2357	for i=0, #inTAG.SEG do
	2358	inTAG.SEG[i]=regenSegmentHeader(inTAG.SEG[i])
	2359	end
	2360	end
	2361	end,
	2362	---
	2363	-- edit data-portion of single segment
	2364	["ed"] = function(x)
	2365	if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
	2366	else sel=selectSegment(inTAG) end
	2367	if (istable(inTAG.SEG[sel])) then
	2368	inTAG.SEG[sel].data=editSegmentData(inTAG.SEG[sel].data)
	2369	end
	2370	end,
	2371	---
	2372	-- edit Tag (MCD, MSN, MCC etc.)
	2373	["et"] = function(x)
	2374	if (istable(inTAG)) then
	2375	editTag(inTAG)
	2376	end
	2377	end,
	2378	---
	2379	-- make (dummy) Token
	2380	["mt"] = function(x) inTAG=makeToken(); actions.di() end,
	2381	---
	2382	-- fix segment-crc on single segment
	2383	["ts"] = function(x)
	2384	if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
	2385	else sel=selectSegment(inTAG) end
	2386	regenSegmentHeader(inTAG.SEG[sel])
	2387	end,
	2388	---
	2389	-- toggle kgh-crc-flag on a single segment
	2390	["tk"] = function(x)
	2391	if (istable(inTAG) and istable(inTAG.SEG[0])) then
	2392	if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
	2393	else sel=selectSegment(inTAG) end
	2394	if(inTAG.SEG[sel].kgh) then inTAG.SEG[sel].kgh=false
	2395	else inTAG.SEG[sel].kgh=true end
	2396	end
	2397	end,
	2398	---
	2399	-- calculate LegicCrc8
	2400	["k"] = function(x)
	2401	if (type(x)=="string" and string.len(x)>0) then
	2402	print(("%02x"):format(utils.Crc8Legic(x)))
	2403	end
	2404	end,
	2405	---
	2406	-- noop
	2407	["xb"] = function(x)
	2408	end,
	2409	---
	2410	-- print string for LegicCrc8-calculation about single segment
	2411	["xc"] = function(x)
	2412	if (istable(inTAG) and istable(inTAG.SEG[0])) then
	2413	if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
	2414	else sel=selectSegment(inTAG) end
	2415	print("k "..kghCrcCredentials(inTAG, sel))
	2416	end
	2417	end,
	2418	---
	2419	-- fix legic-cash checksums
	2420	["flc"] = function(x)
	2421	if (type(x)=="string" and string.len(x)>0) then x=tonumber(x,10)
	2422	else x=selectSegment(inTAG) end
	2423	inTAG.SEG[x].data=fixLegicCash(inTAG.SEG[x].data)
	2424	end,
	2425	---
	2426	-- edit legic-cash values fixLegicCash(data)
	2427	["elc"] = function(x)
	2428	x=autoSelectSegment(inTAG, "legiccash")
	2429	inTAG.SEG[x].data=editLegicCash(inTAG.SEG[x].data)
	2430	end,
	2431	---
	2432	-- dump legic-cash human-readable
	2433	["dlc"] = function(x)
	2434	-- if segment index was user defined
	2435	if (type(x)=="string" and string.len(x)>0) then
	2436	x=tonumber(x,10)
	2437	print(string.format("User-Selected Index %02d", x))
	2438	-- or try to find match
	2439	else x=autoSelectSegment(inTAG, "legiccash") end
	2440	-- dump it
	2441	dumpLegicCash(inTAG, x)
	2442	end,
	2443	---
	2444	-- dump 3rd-party-cash-segment
	2445	["d3p"] = function(x)
	2446	local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
	2447	-- if segment index was user defined
	2448	if (type(x)=="string" and string.len(x)>0) then
	2449	x=tonumber(x,10)
	2450	print(string.format("User-Selected Index %02d", x))
	2451	-- or try to find match
	2452	else x=autoSelectSegment(inTAG, "3rdparty") end
	2453	if (istable(inTAG) and istable(inTAG.SEG[x]) and inTAG.SEG[x].len == 100) then
	2454	uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
	2455	if (check43rdPartyCash1(uid, inTAG.SEG[x].data)) then
	2456	dump3rdPartyCash1(inTAG, x)
	2457	end
	2458	end
	2459	end,
	2460	---
	2461	-- dump 3rd-party-cash-segment (raw blocks and checksums over 'known areas')
	2462	["r3p"] = function(x)
	2463	local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
	2464	-- if segment index was user defined
	2465	if (type(x)=="string" and string.len(x)>0) then
	2466	x=tonumber(x,10)
	2467	print(string.format("User-Selected Index %02d", x))
	2468	-- or try to find match
	2469	else x=autoSelectSegment(inTAG, "3rdparty") end
	2470	print3rdPartyCash1(inTAG, x)
	2471	end,
	2472	---
	2473	-- edit 3rd-party-cash-segment values (Balance, Mapping-UID, Stamp)
	2474	["e3p"] = function(x)
	2475	local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
	2476	-- if segment index was user defined
	2477	if (type(x)=="string" and string.len(x)>0) then
	2478	x=tonumber(x,10)
	2479	print(string.format("User-Selected Index %02d", x))
	2480	-- or try to find match
	2481	else x=autoSelectSegment(inTAG, "3rdparty") end
	2482	if (istable(inTAG) and istable(inTAG.SEG[x]) and inTAG.SEG[x].len == 100) then
	2483	inTAG=edit3rdPartyCash1(inTAG, x)
	2484	dump3rdPartyCash1(inTAG, x)
	2485	end
	2486	end,
	2487	---
	2488	-- force fixing 3rd-party-checksums
	2489	["f3p"] = function(x)
	2490	if(type(x)=="string" and string.len(x)>=2) then x=tonumber(x, 10)
	2491	else x=selectSegment(inTAG) end
	2492	if (istable(inTAG.SEG[x])) then
	2493	local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
	2494	inTAG.SEG[x].data=fix3rdPartyCash1(uid, inTAG.SEG[x].data)
	2495	end
	2496	end,
	2497	---
	2498	-- get stamp from single segment
	2499	["gs"] = function(x)
	2500	if(type(x)=="string" and string.len(x)>=2) then x=tonumber(x, 10)
	2501	else x=selectSegment(inTAG) end
	2502	local stamp=getSegmentStamp(inTAG.SEG[x])
	2503	print("Stamp : "..stamp)
	2504	stamp=str2bytes(stamp)
	2505	print("lenght: "..#stamp)
	2506	end,
	2507	---
	2508	-- calculate crc16
	2509	["c6"] = function(x) local crc16=string.format("%4.04x", utils.Crc16(x))
	2510	print(string.sub(crc16, 0,2).." "..string.sub(crc16, 3,4))
	2511	end,
	2512	---
	2513	-- check & fix segments-crc of all segments
	2514	["cc"] = function(x) if (istable(inTAG)) then checkAllSegCrc(inTAG) end end,
	2515	---
	2516	-- set backup-area-bytes to '00'
	2517	["cb"] = function(x)
	2518	if (istable(inTAG)) then
	2519	print(accyan.."purge BackupArea"..acoff)
	2520	inTAG=clearBackupArea(inTAG)
	2521	end
	2522	end,
	2523	---
	2524	-- check and fix all segments inTAG.SEG[x].kgh toggled 'on'
	2525	["ck"] = function(x) if (istable(inTAG)) then checkAllKghCrc(inTAG) end end,
	2526	---
	2527	-- check and fix all segments inTAG.SEG[x].kgh toggled 'on'
	2528	["tac"] = function(x)
	2529	if (colored_output) then
	2530	colored_output=false
	2531	else
	2532	colored_output=true
	2533	end
	2534	load_colors(colored_output)
	2535	end,
	2536	}
	2537	repeat
	2538	-- defualt message / prompt
	2539	ic=input("Legic command? ('h' for help - 'q' for quit)", "h")
	2540	-- command actions decisions (first match, longer commands before shorter)
	2541	if (type(actions[string.lower(string.sub(ic,0,3))])=='function') then
	2542	actions[string.lower(string.sub(ic,0,3))](string.sub(ic,5))
	2543	elseif (type(actions[string.lower(string.sub(ic,0,2))])=='function') then
	2544	actions[string.lower(string.sub(ic,0,2))](string.sub(ic,4))
	2545	elseif (type(actions[string.lower(string.sub(ic,0,1))])=='function') then
	2546	actions[string.lower(string.sub(ic,0,1))](string.sub(ic,3))
	2547	else actions.h('') end
	2548	until (string.sub(ic,0,1)=="q")
	2549	end
	2550
	2551	---
	2552	-- main function
	2553	function main(args)
	2554	-- set init colors/switch (can be toggled with 'tac' => 'toggle ansicolors')
	2555	load_colors(colored_output)
	2556	if (#args == 0 ) then modifyMode() end
	2557	--- variables
	2558	local inTAG, backupTAG, outTAG, outfile, interactive, crc, ofs, cfs, dfs
	2559	-- just a spacer for better readability
	2560	print()
	2561	--- parse arguments
	2562	for o, a in getopt.getopt(args, 'hrmi:do:c:') do
	2563	-- display help
	2564	if o == "h" then return help(); end
	2565	-- read tag from PM3
	2566	if o == "r" then inTAG=readFromPM3() end
	2567	-- input file
	2568	if o == "i" then inTAG=readFile(a) end
	2569	-- dump virtual-Tag
	2570	if o == "d" then dfs=true end
	2571	-- interacive modifying
	2572	if o == "m" then interactive=true; modifyMode() end
	2573	-- xor (e.g. for clone or plain file)
	2574	if o == "c" then cfs=true; crc=a end
	2575	-- output file
	2576	if o == "o" then outfile=a; ofs=true end
	2577	end
	2578
	2579	-- file conversion (output to file)
	2580	if (ofs) then
	2581	-- dump infile / tag-read
	2582	if (dfs) then
	2583	print("-----------------------------------------")
	2584	print(dumpTag(inTAG))
	2585	end
	2586	bytes=tagToBytes(inTAG)
	2587	if (cfs) then
	2588	-- xor willl be done in function writeFile
	2589	-- with the value of byte[5]
	2590	bytes[5]=crc
	2591	end
	2592	-- write to outfile
	2593	if (bytes) then
	2594	writeFile(bytes, outfile)
	2595	--- read real tag into virtual tag
	2596	-- inTAG=readFromPM3() end
	2597	--- or simply use the bytes that where wriiten
	2598	inTAG=bytesToTag(bytes, inTAG)
	2599	-- show new content
	2600	if (dfs) then
	2601	print("-----------------------------------------")
	2602	print(dumpTag(inTAG))
	2603	end
	2604	end
	2605	end
	2606
	2607	end
	2608
	2609	---
	2610	-- script start
	2611	main(args)