RfidResearchGroup/proxmark3
1
1
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2024-11-16 14:50:07 +08:00
Code Issues Projects Releases Packages Wiki Activity
proxmark3/client/luascripts/hf_legic.lua
iceman1001 c6cc1b2416 fix the loadfile command and more colors
2023-07-22 14:22:39 +02:00

2875 lines
94 KiB
Lua
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

--[[
if it don't works with you tag-layout - be so kind and let me know ;-)
Tested on Tags with those Layouts:
(example) Legic-Prime Layout with 'Kaba Group Header'
+----+----+----+----+----+----+----+----+
0x00|MCD |MSN0|MSN1|MSN2|MCC | 60 | ea | 9f |
+----+----+----+----+----+----+----+----+
0x08| ff | 00 | 00 | 00 | 11 |Bck0|Bck1|Bck2|
+----+----+----+----+----+----+----+----+
0x10|Bck3|Bck4|Bck5|BCC | 00 | 00 |Seg0|Seg1|
+----+----+----+----+----+----+----+----+
0x18|Seg2|Seg3|SegC|Stp0|Stp1|Stp2|Stp3|UID0|
+----+----+----+----+----+----+----+----+
0x20|UID1|UID2|kghC|
+----+----+----+
MCD = Manufacturer ID
MSN = Manufacturer SerialNumber
60 ea = DCF Low + DCF high
9f = raw byte which holds the bits for OLE,WRP,WRC,RD
ff = unknown but important
00 = unimportant
11 = unknown but important
Bck = header-backup-area
00 00 = Year (00 = 2000) & Week (not important)
Seg = Segment Header
SegC = Crc8 over the Segment Header
Stp = Stamp (could be more as 4 - up to 7)
UID = dec User-ID for online-Mapping
kghC = crc8 over MCD + MSN0..MSN2 + UID
(example) Legic-Cash on MIM256/1024 tag' (37 bytes)
+----+----+----+----+----+----+----+----+
0x00|Seg0|Seg1|Seg2|Seg3|SegC|STP0|STP1|STP2|
+----+----+----+----+----+----+----+----+
0x08|STP3|STP4|STP5|STP6| 01 |CURh|CURl|LIMh|
+----+----+----+----+----+----+----+----+
0x10|LIMm|LIMl|CHKh|CHKl|BALh|BALm|BALl|LRBh|
+----+----+----+----+----+----+----+----+
0x18|LRBm|LRBl|CHKh|CHKl|SHDh|SHDm|SHDl|LRSh|
+----+----+----+----+----+----+----+----+
0x20|LRSm|LRSl| CV |CHKh|CHKl|
+----+----+----+----+----+
STP = Stamp (seems to be always 7 bytes)
01 = unknown but important
CUR = currency in HEX (ISO 4217)
LIM = Cash-Limit
CHK = crc16 over byte-addr 0x05..0x12
BAL = Balance
LRB = ID of the reader that changed the balance
CHK = crc16 over BAL + LRB
SHD = shadow Balance
LRS = ID of the reader that changed the shadow balance (?? should be always the same as LRB)
CV = Counter value for transactions
CHK = crc16 over SHD + LRS + CV
(example) Legic-Prime Layout 'gantner unsegmented user-credential'
+----+----+----+----+----+----+----+----+
0x00|MCD |MSN0|MSN1|MSN2|MCC | 60 | ea | 08 |
+----+----+----+----+----+----+----+----+
0x08|Stp0|Stp1|Stp2|Stp3|Stp4|Dat0|Dat1|uCRC| <- addr 0x08..0x0f is WRP
+----+----+----+----+----+----+----+----+
0x10|emb0| <- this is only within wrp if addr 0x07==09
+----+
MCD = Manufacturer ID
MSN = Manufacturer SerialNumber
60 ea = DCF Low + DCF high
08 = raw byte which holds the bits for OLE,WRP,WRC,RD
Stp = Stamp (could be more as 4 - up to 7)
Dat = Online-Mapping Data
uCRC = crc8 over addr 0x00..0x03+0x07..0x0E
(example) Legic-Prime Layout 'gantner unsegmented Master-Token (IAM) with a stamp_len of 4'
+----+----+----+----+----+----+----+----+
0x00|MCD |MSN0|MSN1|MSN2|MCC | 20 | f8 | 08 |
+----+----+----+----+----+----+----+----+
0x08|Stp0|Stp1|Stp2|Stp3| 00 | 00 | 00 |CRC1|
+----+----+----+----+----+----+----+----+
0x10| 00 | 00 | 00 | 00 | 00 |CRC2|
+----+----+----+----+----+----+
MCD = Manufacturer ID
MSN = Manufacturer SerialNumber
60 ea = DCF Low + DCF high
08 = raw byte which holds the bits for OLE,WRP,WRC,RD
Stp = Stamp (could be more as 4 - up to 7)
Dat = Online-Mapping Data
CRC1 = crc8 over addr 0x00..0x03+0x07..0x0E (special 'gantner crc8')
CRC2 = MCD + MSB0..2+ addr 0x06 + addr 0x05 + addr 0x07 + Stamp (regular Master-Token-CRC)
--]]
--[[
Known issues; needs to be fixed:
* last byte in last segment is handled incorrectly when it is the last bytes on the card itself (MIM256: => byte 256)
--]]
---
-- requirements
local utils = require('utils')
local getopt = require('getopt')
local ansicolors = require('ansicolors')
---
-- global variables / defines
local bxor = bit32.bxor
local bbit = bit32.extract
local input = utils.input
local confirm = utils.confirm
---
-- init ansicolor-values & ansicolors switch
local colored_output = true
local acoff = ""
local acgreen= ""
local accyan = ""
local acred = ""
local acyellow = ""
local acblue = ""
local acmagenta = ""
local acy = ansicolors.yellow
local acc = ansicolors.cyan
local acr = ansicolors.reset
--- Helper ---
---
-- default colors (change to whatever you want)
function load_colors(onoff)
if (onoff) then
-- colors
acgreen = ansicolors.green
accyan = ansicolors.cyan
acred = ansicolors.red
acyellow= ansicolors.yellow
acblue = ansicolors.blue
acmagenta= ansicolors.magenta
acoff = ansicolors.reset
acy = ansicolors.yellow
acc = ansicolors.cyan
acr = ansicolors.reset
else
-- 'no color'
acgreen = ""
accyan = ""
acred = ""
acyellow= ""
acblue = ""
acmagenta= ""
acoff = ""
acy = ""
acc = ""
acr = ""
end
end
example = "script run hf_legic"
author = "Mosci, uhei"
version = "1.0.5"
desc =
[[
This script helps you to read, create and modify Legic Prime Tags ( MIM22, MIM256, MIM1024 )
The virtual tag (and therefore the file to be saved) is always a MIM1024 tag.
it's kinda interactive with following commands in three categories:
Data I/O Segment Manipulation Token-Data
----------------- -------------------- -----------------
]]..acy..[[rt]]..acr..[[ -> read Tag ]]..acy..[[as]]..acr..[[ -> add Segment ]]..acy..[[mt]]..acr..[[ -> make Token
]]..acy..[[wt]]..acr..[[ -> write Tag ]]..acy..[[es]]..acr..[[ -> edit Segment Header ]]..acy..[[et]]..acr..[[ -> edit Token data
]]..acy..[[ed]]..acr..[[ => edit Segment Data ]]..acy..[[tk]]..acr..[[ => toggle KGH-Flag
File I/O ]]..acy..[[rs]]..acr..[[ => remove Segment
----------------- ]]..acy..[[cc]]..acr..[[ -> check Segment-CRC
]]..acy..[[lf]]..acr..[[ -> load bin File ]]..acy..[[ck]]..acr..[[ -> check KGH
]]..acy..[[sf]]..acr..[[ -> save eml/bin File ]]..acy..[[ds]]..acr..[[ -> dump Segments
]]..acy..[[xf]]..acr..[[ -> xor to File
(partially) known Segments Virtual Tags Script Output
--------------------------- ------------------------------- ------------------------
]]..acy..[[dlc]]..acr..[[ -> dump Legic-Cash ]]..acy..[[ct]]..acr..[[ -> copy mainTag to backupTag ]]..acy..[[tac]]..acr..[[ -> toggle ansicolors
]]..acy..[[elc]]..acr..[[ -> edit Legic-Cash ]]..acy..[[tc]]..acr..[[ -> copy backupTag to mainTag
]]..acy..[[d3p]]..acr..[[ -> dump 3rd-Party-Cash ]]..acy..[[tt]]..acr..[[ -> switch mainTag & backupTag
]]..acy..[[e3p]]..acr..[[ -> edit 3rd-Party-Cash ]]..acy..[[di]]..acr..[[ -> dump mainTag
]]..acy..[[do]]..acr..[[ => dump backupTag
rt: 'read tag' - reads a tag placed near to the PM3
wt: 'write tag' - writes the content of the 'virtual inTag' to a tag placed near to th PM3
without the need of changing anything - MCD,MSN,MCC will be read from the tag
before and applied to the output.
lf: 'load file' - load a (xored) binary file (*.bin) from the local Filesystem into the 'virtual inTag'
sf: 'save file' - saves the 'virtual inTag' to the local Filesystem as eml and bin (xored with Tag-MCC)
xf: 'xor file' - saves the 'virtual inTag' to the local Filesystem (xored with chosen MCC - use '00' for plain values)
ct: 'copy tag' - copy the 'virtual Tag' to a second 'virtual TAG' - not useful yet, but inernally needed
tc: 'copy tag' - copy the 'second virtual Tag' to 'virtual TAG' - not useful yet, but inernally needed
tt: 'toggle tag' - copy mainTag to BackupTag and backupTag to mainTag
di: 'dump mainTag' - shows the current content of the 'virtual Tag'
do: 'dump backupTag' - shows the current content of the 'virtual outTag'
ds: 'dump Segments' - will show the content of a selected Segment
as: 'add Segment' - will add a 'empty' Segment to the inTag
es: 'edit Segment' - edit the Segment-Header of a selected Segment (len, WRP, WRC, RD, valid)
all other Segment-Header-Values are either calculated or not needed to edit (yet)
ed: 'edit data' - edit the Data of a Segment (ADF-Aera / Stamp & Payload specific Data)
et: 'edit Token' - edit Data of a Token (CDF-Area / SAM, SAM64, SAM63, IAM, GAM specific Data)
mt: 'make Token' - create a Token 'from scratch' (guided)
rs: 'remove segment' - removes a Segment (except Segment 00, but this can be set to valid=0 for Master-Token)
cc: 'check Segment-CRC' - checks & calculates (if check failed) the Segment-CRC of all Segments
ck: 'check KGH-CRC' - checks the and calculates a 'Kaba Group Header' if one was detected
'Kaba Group Header CRC calculation'
tk: 'toggle KGH' - toggle the (script-internal) flag for kgh-calculation for a segment
xc: 'etra c' - show string that was used to calculate the kgh-crc of a segment
dlc: 'dump Legic-Cash' - show balance and checksums of a Legic-Cash Segment
elc: 'edit Legic-Cash' - edit values of a Legic-Cash Segment
d3p: 'dump 3rd Party' - show balance, history and checksums of a (yet) unknown 3rd-Party Cash Segment
e3p: 'edit 3rd Party' - edit Data in 3rd-Party Cash Segment
tac: 'toggle ansicolors' - switch on and off the colored text-output of this script
default can be changed by setting the variable 'colored_output' to false
]]
currentTag="inTAG"
---
-- curency-codes for Legic-Cash-Segments (ISO 4217)
local currency = {
["03D2"]="EUR",
["0348"]="USD",
["033A"]="GBP",
["02F4"]="CHF"
}
---
-- This is only meant to be used when errors occur
function oops(err)
print(acred.."ERROR: "..acoff ,err)
return nil, err
end
---
-- Usage help
function help()
-- the proxmark3 client can't handle such long strings
-- by breaking up at specific points it still looks good.
print(string.sub(desc, 0, 1961))
print(string.sub(desc, 1962, 3925))
print(string.sub(desc, 3926, #desc))
print("Version: "..version)
print("Example usage: "..example)
end
---
-- table check helper
function istable(t)
return type(t) == 'table'
end
---
-- To have two char string for a byte
local function padString(str)
if (#str == 1) then
return '0'..str
end
return str
end
---
-- creates a 'deep copy' of a table (a=b only references)
function deepCopy(object)
local lookup_table = {}
local function _copy(object)
if type(object) ~= "table" then
return object
elseif lookup_table[object] then
return lookup_table[object]
end
local new_table = {}
lookup_table[object] = new_table
for index, value in pairs(object) do
new_table[_copy(index)] = _copy(value)
end
return setmetatable(new_table, getmetatable(object))
end
return _copy(object)
end
---
-- xor single byte
function xorme(hex, xor, index)
if ( index >= 23 ) then
return ('%02x'):format(bxor( tonumber(hex,16) , tonumber(xor,16) ))
else
return hex
end
end
---
-- (de)obfuscate bytes
function xorBytes(inBytes, crc)
local bytes = {}
for index = 1, #inBytes do
bytes[index] = xorme(inBytes[index], crc, index)
end
if (#inBytes == #bytes) then
-- replace crc
bytes[5] = string.sub(crc,-2)
return bytes
else
print("error: byte-count missmatch")
return false
end
end
---
-- split csv-string into table
local function split(str, sep)
local sep = sep or ','
local fields={}
local matchfunc = string.gmatch(str, "([^"..sep.."]+)")
if not matchfunc then return {str} end
for str in matchfunc do
table.insert(fields, str)
end
return fields
end
---
-- check availability of file
function file_check(file_name)
if not file_name then return false, "" end
local arr = split(file_name, ".")
local path = core.search_file(arr[1], "."..arr[2])
if (path == nil) then return false end
local file_found = io.open(path, "r")
if file_found == nil then
return false, ""
else
file_found:close()
return true, path
end
end
---
-- put a string into a bytes-table
function str2bytes(s)
if (string.len(s)%2 ~= 0) then
return print("stamp should be a even hexstring e.g.: deadbeef or 0badc0de")
end
local res={}
for i=1, string.len(s), 2 do
table.insert(res, string.sub(s,i,(i+1)))
end
return res
end
---
-- put certain bytes into a new table
function bytesToTable(bytes, bstart, bend)
local t={}
for i=0, (bend-bstart) do
t[i]=padString(bytes[bstart+i])
end
return t
end
---
-- read file into table
function getInputBytes(infile)
local line
local bytes = {}
local arr = split(infile, ".")
local path = core.search_file(arr[1], "."..arr[2])
if (path == nil) then oops("failed to read from file ".. infile); return false; end
local fhi,err = io.open(path,"rb")
if err then oops("failed to read from file ".. path); return false; end
file_data = fhi:read("*a");
for i = 1, #file_data do
bytes[i] = string.format("%x",file_data:byte(i))
end
fhi:close()
if (bytes[7]=='00') then return false end
print(#bytes .. " bytes from "..path.." loaded")
return bytes
end
---
-- create tag-table helper
function createTagTable()
local t={
['MCD'] = '00',
['MSN0']= '11',
['MSN1']= '22',
['MSN2']= '33',
['MCC'] = 'cc',
['DCFl']= 'ff',
['DCFh']= 'ff',
['Type']= 'GAM',
['OLE'] = 0,
['Stamp_len']= 18,
['WRP'] = '00',
['WRC'] = '00',
['RD'] = '00',
['raw'] = '9f',
['SSC'] = 'ff',
['data']= {},
['bck'] = {},
['MTC'] = {},
['SEG'] = {}
}
return t
end
---
-- put bytes into tag-table
function bytesToTag(bytes, tag)
if istable(tag) == false then return oops("tag is no table in: bytesToTag ("..type(tag)..")") end
tag.MCD =padString(bytes[1]);
tag.MSN0=padString(bytes[2]);
tag.MSN1=padString(bytes[3]);
tag.MSN2=padString(bytes[4]);
tag.MCC =padString(bytes[5]);
tag.DCFl=padString(bytes[6]);
tag.DCFh=padString(bytes[7]);
tag.raw =padString(bytes[8]);
tag.SSC =padString(bytes[9]);
tag.Type=getTokenType(tag.DCFl);
tag.OLE=bbit("0x"..tag.DCFl,7,1)
tag.WRP=("%d"):format(bbit("0x"..bytes[8],0,4))
tag.WRC=("%d"):format(bbit("0x"..bytes[8],4,3))
tag.RD=("%d"):format(bbit("0x"..bytes[8],7,1))
if (tag.Type=="SAM" and tag.raw=='9f') then
tag.Stamp_len=(tonumber(0xfc,10)-tonumber(bbit("0x"..tag.DCFh,0,8),10))
elseif (tag.Type=="SAM" and (tag.raw=='08' or tag.raw=='09')) then
tag.Stamp_len = tonumber(tag.raw,10)
end
tag.data=bytesToTable(bytes, 10, 13)
tag.Bck=bytesToTable(bytes, 14, 20)
tag.MTC=bytesToTable(bytes, 21, 22)
print(acgreen.."Tag-Type: ".. tag.Type..acoff)
if (tag.Type=="SAM" and #bytes>23) then
tag=segmentsToTag(bytes, tag)
print(acgreen..(#tag.SEG+1).." Segment(s) found"..acoff)
-- unsegmented Master-Token
-- only tag-data
else
for i=0, #tag.Bck do
table.insert(tag.data, tag.Bck[i])
end
tag.data[#tag.data]=tag.MTC[0]
tag.Bck=nil
--tag.MTC[0]=tag.MTC[1]
--tag.MTC[1]=nil
end
print(accyan..#bytes.." bytes for Tag processed"..acoff)
return tag
end
---
-- put segments from byte-table to tag-table
function segmentsToTag(bytes, tag)
if(#bytes>23) then
local start=23
local i=-1
if (istable(tag)) then
repeat
i=i+1
tag.SEG[i]=getSegmentData(bytes, start, ("%02d"):format(i))
if (tag.Type=="SAM") then
if (checkKghCrc(tag, i)) then tag.SEG[i].kgh=true end
end
start=start+tag.SEG[i].len
until ((tag.SEG[i].valid==0) or tag.SEG[i].last==1 or i==126)
return tag
else return oops("tag is no table in: segmentsToTag ("..type(tag)..")") end
else print("no Segments: must be a MIM22") end
end
---
-- read Tag-Table in bytes-table
function tagToBytes(tag)
if istable(tag) == false then return oops("tag is no table in tagToBytes ("..type(tag)..")") end
local bytes = {}
local i, i2
-- main token-data
table.insert(bytes, tag.MCD)
table.insert(bytes, tag.MSN0)
table.insert(bytes, tag.MSN1)
table.insert(bytes, tag.MSN2)
table.insert(bytes, tag.MCC)
table.insert(bytes, tag.DCFl)
table.insert(bytes, tag.DCFh)
table.insert(bytes, tag.raw)
table.insert(bytes, tag.SSC)
-- raw token data
for i=0, #tag.data do
table.insert(bytes, tag.data[i])
end
-- backup data
if(istable(tag.Bck)) then
for i=0, #tag.Bck do
table.insert(bytes, tag.Bck[i])
end
end
-- token-create-time / master-token crc
for i=0, #tag.MTC do
table.insert(bytes, tag.MTC[i])
end
-- process segments
if (type(tag.SEG[0])=='table') then
for i=0, #tag.SEG do
for i2=1, #tag.SEG[i].raw+1 do
table.insert(bytes, #bytes+1, tag.SEG[i].raw[i2])
end
table.insert(bytes, #bytes+1, tag.SEG[i].crc)
for i2=0, #tag.SEG[i].data-1 do
table.insert(bytes, #bytes+1, tag.SEG[i].data[i2])
end
end
end
-- fill with zeros
for i=#bytes+1, 1024 do
table.insert(bytes, i, '00')
end
return bytes
end
---
--- PM3 I/O ---
-- write virtual Tag to real Tag
function writeToTag(tag)
local bytes
local taglen = 22
local writeDCF = false
if(utils.confirm(acred.."\nPlace the (empty) Tag onto the PM3\nand confirm writing to this Tag: "..acoff) == false) then
return
end
if(utils.confirm(acred.."\nShould the decremental field (DCF) be written?: "..acoff) == true) then
writeDCF = true
end
-- get used bytes / tag-len
if (istable(tag.SEG)) then
if (istable(tag.Bck)) then
for i=0, #tag.SEG do
taglen = taglen + tag.SEG[i] . len
end
end
local uid_old = tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
-- read new tag into memory so we can xor the new data with the new MCC
outTAG = readFromPM3()
outbytes = tagToBytes(outTAG)
-- copy 'inputbuffer' to 'outputbuffer'
tag.MCD = outbytes[1]
tag.MSN0 = outbytes[2]
tag.MSN1 = outbytes[3]
tag.MSN2 = outbytes[4]
tag.MCC = outbytes[5]
-- recheck all segments-crc/kghcrc (only on a credential)
if (istable(tag.Bck)) then
checkAllSegCrc(tag)
checkAllKghCrc(tag)
local uid_new = tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
for i=0, #tag.SEG do
if (check43rdPartyCash1(uid_old, tag.SEG[i].data)) then
io.write(accyan.."\nfixing known checksums"..acoff.." ... ")
if (fix3rdPartyCash1(uid_new, tag.SEG[i].data)) then
io.write(acgreen.." done\n"..acoff)
else
oops("\nsomething went wrong at the repair of the 3rd-party-cash-segment")
end
end
end
end
bytes = tagToBytes(tag)
-- master-token-crc
if (tag.Type ~= "SAM") then
bytes[22] = calcMtCrc(bytes)
end
if (bytes) then
bytes = xorBytes(bytes,tag.MCC)
end
end
-- write data to file
if (taglen > 0) then
WriteBytes = input(acyellow.."enter number of bytes to write?"..acoff, taglen)
-- write pm3-buffer to Tag
for i=1, WriteBytes do
if (i > 7) then
cmd = ("hf legic wrbl -o %d -d %s "):format(i-1, padString(bytes[i]))
print(acgreen..cmd..acoff)
core.console(cmd)
core.clearCommandBuffer()
elseif (i == 7) then
if (writeDCF) then
-- write DCF in reverse order (requires 'mosci-patch')
cmd = ('hf legic wrbl -o 5 -d %s%s'):format(padString(bytes[i-1]), padString(bytes[i]))
print(acgreen..cmd..acoff)
core.console(cmd)
core.clearCommandBuffer()
else
print(acgreen.."skip byte 0x05-0x06 - DCF"..acoff)
end
elseif (i == 6) then
print(acgreen.."skip byte 0x05 - will be written next step"..acoff)
else
print(acgreen.."skip byte 0x00-0x04 - unwritable area"..acoff)
end
utils.Sleep(0.2)
end
end
end
--- File I/O ---
---
-- read file into virtual-tag
local function readFile(filename)
print(accyan)
local bytes = {}
local tag = {}
local res, path = file_check(filename)
if not res then
return oops("input file: "..acyellow..filename..acoff.." not found")
end
bytes = getInputBytes(path)
if bytes == false then return oops('couldnt get input bytes') end
-- make plain bytes
bytes = xorBytes(bytes,bytes[5])
print("create virtual tag from ".. #bytes .. " bytes")
-- create Tag for plain bytes
tag = createTagTable()
-- load plain bytes to tag-table
print(acoff)
tag = bytesToTag(bytes, tag)
return tag
end
local function save_BIN(data, filename)
local outfile
local counter = 1
local ext = ".bin"
local fn = filename..ext
-- Make sure we don't overwrite a file
local res, path = file_check(fn)
while res == false do
fn = filename..ext:gsub(ext, "-"..tostring(counter)..ext)
counter = counter + 1
res, path = file_check(fn)
end
outfile = io.open(path, 'wb')
local i = 1
while data[i] do
local byte = string.char(tonumber(data[i], 16))
outfile:write(byte)
i = i + 1
end
outfile:close()
return fn, #data
end
---
-- write bytes to file
function writeFile(bytes, filename)
local emlext = ".eml"
local res, path
if (filename ~= 'MyLegicClone') then
res, path = file_check(filename..emlext)
if res then
local answer = confirm("\nthe output-file "..path.." already exists!\nthis will delete the previous content!\ncontinue?")
if not answer then return print("user abort") end
end
end
local line
local bcnt = 0
local fho, err = io.open(path, "w")
if err then
return oops("OOps ... failed to open output-file ".. path)
end
bytes = xorBytes(bytes, bytes[5])
for i = 1, #bytes do
if (bcnt == 0) then
line = padString(bytes[i])
elseif (bcnt <= 7) then
line = line.." "..padString(bytes[i])
end
if (bcnt == 7) then
-- write line to new file
fho:write(line.."\n")
-- reset counter & line
bcnt = -1
line = ""
end
bcnt = bcnt + 1
end
fho:close()
print("\nwrote "..acyellow..(#bytes * 3)..acoff.." bytes to " ..acyellow..filename..emlext..acoff)
-- save binary
local fn_bin, fn_bin_num = save_BIN(bytes, filename)
if fn_bin and fn_bin_num then
print("\nwrote "..acyellow..fn_bin_num..acoff.." bytes to BINARY file "..acyellow..fn_bin..acoff)
end
return true
end
function getRandomTempName()
local upperCase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
local lowerCase = "abcdefghijklmnopqrstuvwxyz"
local characterSet = upperCase .. lowerCase
local keyLength = 8
local output = ""
for i = 1, keyLength do
local rand = math.random(#characterSet)
output = output .. string.sub(characterSet, rand, rand)
end
output = "hf-legic-temp-" .. output
return output
end
---
-- read from pm3 into virtual-tag
function readFromPM3()
local tag, bytes, infile
--infile="legic.temp"
infile=getRandomTempName()
core.console("hf legic dump -f "..infile)
tag=readFile(infile..".bin")
res, path = file_check(infile..".bin")
if not res then return nil end
os.remove(path)
res, path = file_check(infile..".eml")
os.remove(path)
res, path = file_check(infile..".json")
os.remove(path)
return tag
end
--- Map related ---
---
-- make tagMap
local function makeTagMap()
local tagMap = {}
if (#tagMap == 0) then
tagMap['name'] = input(accyan.."enter Name for this Map: "..acoff , "newTagMap")
tagMap['mappings'] = {}
tagMap['crc8'] = {}
-- insert fixed Tag-CRC
table.insert(tagMap.crc8, {name = 'TAG-CRC', pos = 5, seq = {1, 4}})
tagMap['crc16'] = {}
end
print(accyan.."new tagMap created"..acoff)
return tagMap
end
---
-- save mapping to file
local function saveTagMap(map, filename)
local res, path
if #filename > 0 then
res, path = file_check(filename)
if res then
local answer = confirm("\nthe output-file "..acyellow..path..acoff.." alredy exists!\nthis will delete the previous content!\ncontinue?")
if not answer then return print("user abort") end
end
end
local line
local fho,err = io.open(path, "w")
if err then oops("OOps ... failed to open output-file "..acyellow..path..acoff) end
-- write line to new file
for k, v in pairs(map) do
if (istable(v)) then
for k2, v2 in pairs(v) do
if (k == 'mappings') then
fho:write(k..","..k2..","..v2['name']..","..v2['start']..","..v2['end']..","..((v2['highlight']) and "1" or "0").."\n")
elseif (k == "crc8") then
local tmp = ""
tmp = k..","..k2..","..v2['name']..","..v2['pos']..","
tmp=tmp..tbl2seqstr(v2['seq'])
fho:write(tmp.."\n")
end
end
else
fho:write(k..","..v.."\n")
end
end
fho:close()
return true
end
---
-- toggle higligh
local function toggleHighlight(tbl)
if (tbl['highlight']) then
tbl['highlight'] = false
else
tbl['highlight'] = true
end
return tbl
end
---
-- return table od seqence-string
local function seqstr2tbl(seqstr)
local s = split(seqstr)
local res = {}
if (#s >= 1) then
for sk, sv in pairs(s) do
s2 = split(sv, '-')
if(#s2 == 2) then
table.insert(res, s2[1])
table.insert(res, s2[2])
end
end
end
return res
end
---
-- return sequence-string from table
local function tbl2seqstr(seqtbl)
local res = ""
if (istable(seqtbl)) then
for sk, sv in pairs(seqtbl) do
res = res..sv..((sk%2==0) and "," or "-")
end
if (string.sub(res, string.len(res))== ",") then
res = string.sub(res, 1, string.len(res)-1)
end
end
return res
end
---
-- read map-file into map
function loadTagMap(filename)
local map={mappings={}, crc8={}, crc16={}}
local m=0
local c=0
local line, fields
local temp={}
local offset=0
local res, path = file_check(filename)
if not res then
return oops("input file: "..acyellow..filename..acoff.." not found")
else
local fhi,err = io.open(path)
while true do
line = fhi:read()
if line == nil then
break
else
fields = split(line)
end
if (#fields == 2) then
if (fields[1] == 'offset') then
offset = tonumber(fields[2],10)
end
-- map-name
map[fields[1]]=fields[2]
elseif (fields[1]=='mappings') then
m=m+1
temp={}
-- mapping
temp['name']=fields[3]
temp['start']=tonumber(fields[4], 10)
temp['end']=tonumber(fields[5], 10)
if(temp['start']>22) then
temp['start']=temp['start']+offset
temp['end']=temp['end']+offset
end
if (tonumber(fields[6], 10)==1) then temp['highlight']= true
else temp['highlight']= false end
table.insert(map['mappings'], m, temp)
elseif (fields[1]=='crc8') then
c=c+1
temp={}
-- crc8
temp['name']=fields[3]
temp['pos']=tonumber(fields[4], 10)+offset
local s=string.sub(line, string.len(fields[1]..","..fields[2]..","..fields[3]..",")+1, string.len(line))
temp['seq']=seqstr2tbl(s)
for k, v in pairs(temp['seq']) do
if(tonumber(v, 10)>22) then v=tonumber(v, 10)+offset end
temp['seq'][k]=tonumber(v, 10)
end
table.insert(map.crc8, temp)
end
end
fhi:close()
end
return map
end
---
-- dump tagMap (mappings only)
function dumpTagMap(tag, tagMap)
if(#tagMap.mappings>0) then
bytes=tagToBytes(tag)
local temp
local lastend=0
-- start display mappings
for k, v in pairs(tagMap.mappings) do
if ((lastend+1)<v['start']) then
print("...")
end
if (isPosCrc8(tagMap, v['start'])>0) then
if ( checkMapCrc8(tagMap, bytes, isPosCrc8(tagMap, v['start']) ) ) then
io.write("("..("%04d"):format(v['start']).."-"..("%04d"):format(v['end'])..") "..acgreen..v['name']..acoff)
else
io.write("("..("%04d"):format(v['start']).."-"..("%04d"):format(v['end'])..") "..acred..v['name']..acoff)
end
else
io.write("("..("%04d"):format(v['start']).."-"..("%04d"):format(v['end'])..") "..((v['highlight']) and acmagenta or acyellow)..v['name']..acoff)
end
temp = ""
while (#v['name'] + temp:len()) < 20 do temp = temp.." " end
for i=v['start'], v['end'] do
temp=temp..bytes[i].." "
end
print(temp)
lastend=v['end']
end
end
end
---
--
function isPosCrc8(tagMap, pos)
local res=0
if (#tagMap.crc8>0) then
for k, v in pairs(tagMap.crc8) do
if(v['pos']==pos) then res=k end
end
end
return res
end
---
-- check mapped crc
function checkMapCrc8(tagMap, bytes, n)
local res=false
if (#tagMap.crc8>0) then
if(istable(tagMap.crc8[n])) then
temp=""
for k2, v2 in pairs(tagMap.crc8[n]) do
if (istable(v2)) then
temp=temp..tbl2seqstr(v2)
end
end
local tempres=""
local tempres=getSequences(bytes, temp)
tempres=("%02x"):format(utils.Crc8Legic(tempres))
if (bytes[tagMap.crc8[n]['pos']]==tempres) then
res=true
end
end
end
return res
end
---
-- edit existing Map
function editTagMap(tag, tagMap)
local t = [[
]]..acc..[[Data]]..acr..[[
]]..acy..[[dm]]..acr..[[ - show ]]..acy..[[dr]]..acr..[[ - dump raw
]]..acc..[[Mappings]]..acr..[[
]]..acy..[[im]]..acr..[[ - insert ]]..acy..[[am]]..acr..[[ - add
]]..acy..[[rm]]..acr..[[ - remove ]]..acy..[[mas]]..acr..[[ - map all segments
]]..acc..[[CRC8]]..acr..[[
]]..acy..[[ac8]]..acr..[[ - add ]]..acy..[[sc8]]..acr..[[ - show
]]..acy..[[rc8]]..acr..[[ - remove
]]..acy..[[q]]..acr..[[ - exit ]]..acy..[[h]]..acr..[[ - Help
]]
--if(#tagMap.mappings==0) then oops("no mappings in tagMap"); return tagMap end
print("tagMap edit-mode submenu")
repeat
x=input('tagMap submenu:', 'h')
if (x=='h') then print(t)
elseif (x=='dm') then tagMmap=dumpTagMap(tag, tagMap)
elseif (x=='dr') then tagMmap=dumpMap(tag, tagMap)
elseif (x=='rc8') then
if (istable(tagMap.crc8)) then
local x1 = selectTableEntry(tagMap.crc8, "select number of CRC8 to remove:")
if (istable(tagMap.crc8[x1])) then
table.remove(tagMap.crc8, x1)
end
end
elseif (x=='ac8') then
local p=tonumber(input("enter byte-addr of crc8", '0'),10)
if (p>0) then
local i1=input("enter comma-seperated byte-sequences (e.g.: '1-4,23-26')", '1-4,23-26')
local s1=split(i1, ',')
if (#s1>0) then
local temp={seq={}}
for k, v in pairs(s1) do
v1=split(v, '-')
if(#v1==2) then
table.insert(temp.seq, v1[1])
table.insert(temp.seq, v1[2])
end
end
temp['pos']=p
temp['name']=input("enter a name for the CRC8", "CRC "..(#tagMap.crc8+1))
table.insert(tagMap.crc8, temp)
end
end
elseif (string.sub(x, 1, 3)=='sc8') then
local bytes=tagToBytes(tag)
local res, pos
-- trigger manually by sc8 <'4digit' checkadd> <'seqeuence-string'>
-- e.g.: sc8 0027 1-4,23-36
if (string.len(x)>=9) then
pos=tonumber(string.sub(x, 5, 8), 10)
x=string.sub(x, 9, string.len(x))
print("x: "..x.." - pos:"..pos)
else
x=selectTableEntry(tagMap.crc8, "select CRC:")
if(istable(tagMap.crc8[x])) then
pos=tagMap.crc8[x]['pos']
x=tbl2seqstr(tagMap.crc8[x]['seq'])
end
end
if (type(x)=='string') then
res=("%02x"):format(utils.Crc8Legic(getSequences(bytes, x)))
print(accyan.."Sequence:\t"..acoff..x)
print(accyan.."Bytes:\t\t"..acoff..getSequences(bytes, x))
print(accyan.."calculated: "..acoff..res..accyan.." bytes["..pos.."]: "..acoff..bytes[pos].." ("..compareCrc(utils.Crc8Legic(getSequences(bytes, x)), bytes[pos])..")")
end
elseif (x=="tm") then
x=selectTableEntry(tagMap.mappings, "select number of Mapping:")
tagMap.mappings[x]=toggleHighlight(tagMap.mappings[x])
elseif (x=='am') then tagMap=addMapping(tag, tagMap)
elseif (x=='im') then tagMap=addMapping(tag, tagMap, selectTableEntry(tagMap.mappings, "select List-Position for insert:"))
elseif (x=='rm') then tagMap=deleteMapping(tag, tagMap)
elseif (x=='mas') then tagMap=mapTag(tagMap); tagMap=mapAllSegments(tag, tagMap)
elseif (type(actions[string.sub(x, 3)])=='function') then actions[string.sub(x, 3)]()
end
until x=='q'
print("exit sub-Menu")
return tagMap
end
---
-- dump raw mapped and unmapped
function dumpMap(tag, tagMap)
local dstart=1
local dend, cnt
local bytes = tagToBytes(tag)
local stats = getSegmentStats(bytes)
dend=stats[#stats]['end']
print(accyan.."Tag uses "..dend.." bytes:"..acoff)
for i=dstart, dend do
if (check4MappedByte(i, tagMap) and not check4MapCrc8(i, tagMap) and not check4Highlight(i, tagMap)) then io.write(""..acyellow)
elseif (check4MapCrc8(i, tagMap)) then
if ( checkMapCrc8(tagMap, bytes, isPosCrc8(tagMap, i) ) ) then
io.write(""..acgreen)
else
io.write(""..acred)
end
else
io.write(""..acoff)
end
-- highlighted mapping
if (check4Highlight(i, tagMap)) then io.write(""..acmagenta) end
io.write(bytes[i])
if (i%8==0) then io.write("\n")
else io.write(" ") end
end
io.write("\n"..acoff)
end
---
-- show bytes used for crc-calculation
function getSequences(bytes, seqstr)
if (type(seqstr) ~= "string") then seqstr = input("enter comma-seperated sequences (e.g.: '1-4,23-26')", '1-4,23-26') end
local seqs = split(seqstr, ',')
local res = ""
if(#seqs>0) then
for k, v in pairs(seqs) do
local seq = split(v,'-')
if (#seq >= 2) then
for i = seq[1], seq[2] do
res = res..bytes[i].." "
end
end
if(string.len(res)>0) then res = res.." " end
end
else
oops("no sequence found in '"..seqstr.."'")
end
return res
end
---
-- check if byte-addr is a know crc
function check4MapCrc8(addr, tagMap)
local res=false
for i=1, #tagMap.crc8 do
if (addr == tagMap.crc8[i]['pos']) then
res=true
end
end
return res
end
---
-- check if byte-addr is a know crc
function check4MapCrc16(addr, tagMap)
local res=false
for i=1, #tagMap.crc16 do
if (addr == tagMap.crc16[i]['pos']) then
res=true
end
end
return res
end
---
-- check if byte is mapped or not
function check4MappedByte(addr, tagMap)
local res=false
for _, v in pairs(tagMap.mappings) do
if (addr >= v['start'] and addr <= v['end'] ) then
res= true
end
end
return res
end
---
-- check if byte is highlighted or not
function check4Highlight(addr, tagMap)
local res = false
for _, v in pairs(tagMap.mappings) do
if (addr >= v['start'] and addr <= v['end'] ) then
res = v['highlight']
end
end
return res
end
---
-- add interactive mapping
function addMapping(tag, tagMap, x)
if (type(x) ~= "number") then x = #tagMap.mappings + 1 end
local bytes = tagToBytes(tag)
local myMapping = {}
myMapping['name'] = input(accyan.."enter Maping-Name:"..acoff, string.format("mapping %d", #tagMap.mappings+1))
myMapping['start'] = tonumber(input(accyan.."enter start-addr:"..acoff, '1'), 10)
myMapping['end'] = tonumber(input(accyan.."enter end-addr:"..acoff, #bytes), 10)
myMapping['highlight'] = confirm("set highlighted")
table.insert(tagMap.mappings, x, myMapping)
return tagMap
end
---
-- delete mapping
function deleteMapping(tag, tagMap)
if(#tagMap.mappings>0) then
local d = selectTableEntry(tagMap.mappings, "select number of Mapping to remove:")
if (type(d)=='number') then
table.remove(tagMap.mappings, d)
else oops("deleteMapping: got type = "..type(d).." - expected type = 'number'")
end
end
return tagMap
end
---
-- select a mapping from a tagmap
function selectTableEntry(table, action)
if (type(action) ~= "string") then action = "select number of item:" end
for k, v in pairs(table) do
print(accyan..k..acoff.."\t-> "..accyan..v['name']..acoff)
end
local res = tonumber(input(action , 0), 10)
if (istable(table[res])) then
return res
else
return false
end
end
---
-- map all segments
function mapAllSegments(tag, tagMap)
local bytes=tagToBytes(tag)
local WRP,WRC,WRPC
segs=getSegmentStats(bytes)
if (istable(segs)) then
for k, v in pairs(segs) do
-- wrp (write proteted) = byte 2
WRP = tonumber(bytes[v['start']+2],16)
-- wrc (write control) - bit 4-6 of byte 3
WRC = tonumber(bbit("0x"..bytes[v['start']+3],4,3),16)
--tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." HDR", v['start'], v['start']+3)
tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." CRC", v['start']+4, v['start']+4, true)
table.insert(tagMap.crc8, {name = 'Segment '..("%02d"):format(v['index']).." CRC", pos=v['start']+4, seq={1,4,v['start'],v['start']+3}} )
if(WRC>WRP) then
WRPC=WRC
tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." WRC", v['start']+5, v['start']+5+WRC-1, true)
elseif (WRP>WRC and WRC>0) then
WRPC=WRP
tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." WRC", v['start']+5, v['start']+5+WRC-1, true)
tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." WRP", v['start']+WRC+5, v['start']+5+WRP-1, true)
else
WRPC=WRP
tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." WRP", v['start']+5, v['start']+5+WRP-1, true)
end
tagMap=mapTokenData(tagMap, 'Segment '..("%02d"):format(v['index']).." data", v['start']+5+WRPC, v['end'], false)
end
print(#segs.." Segments mapped")
else
oops("autoMapSegments failed: no Segments found")
end
return tagMap
end
---
-- map all token data
function mapTokenData(tagMap, mname, mstart, mend, mhigh)
--if ( not mhigh ) then mhigh=false end
local myMapping = {}
myMapping['name'] = mname
myMapping['start'] = mstart
myMapping['end'] = mend
myMapping['highlight'] = mhigh
table.insert(tagMap.mappings, myMapping)
return tagMap
end
---
-- map a map
function mapTag(tagMap)
tagMap=makeTagMap()
tagMap=mapTokenData(tagMap, 'Tag-ID', 1, 4, true)
tagMap=mapTokenData(tagMap, 'Tag-CRC', 5, 5, false)
tagMap=mapTokenData(tagMap, 'DCF', 6, 7, true)
tagMap=mapTokenData(tagMap, 'THDR-Raw/Stamp-Len', 8, 8, true)
tagMap=mapTokenData(tagMap, 'SSC', 9, 9, true)
tagMap=mapTokenData(tagMap, 'Header', 10, 13, false)
tagMap=mapTokenData(tagMap, 'Backup', 14, 19, true)
tagMap=mapTokenData(tagMap, 'Bck-CRC', 20, 20, false)
tagMap=mapTokenData(tagMap, 'TokenTime', 21, 22, false)
return tagMap
end
--- Dump Data ---
---
-- dump virtual Tag-Data
function dumpTag(tag)
local i, i2
local res
local dp=0
local raw=""
-- sytstem area
res =acyellow.."\nCDF: System Area"..acoff
res= res.."\n"..dumpCDF(tag)
-- segments (user-token area)
if(tag.Type=="SAM" and tag.raw=='9f') then
res = res..acyellow.."\n\nADF: User Area"..acoff
for i=0, #tag.SEG do
res=res.."\n"..dumpSegment(tag, i).."\n"
end
end
return res
end
---
-- dump tag-system area
function dumpCDF(tag)
local res=""
local i=0
local raw=""
local bytes
if (istable(tag)) then
res = res..accyan.."MCD: "..acoff..tag.MCD..accyan.." MSN: "..acoff..tag.MSN0.." "..tag.MSN1.." "..tag.MSN2..accyan.." MCC: "..acoff..tag.MCC.."\n"
res = res.."DCF: "..tag.DCFl.." "..tag.DCFh..", Token_Type="..tag.Type.." (OLE="..tag.OLE.."), Stamp_len="..tag.Stamp_len.."\n"
res = res.."WRP="..tag.WRP..", WRC="..tag.WRC..", RD="..tag.RD..", raw="..tag.raw..((tag.raw=='9f') and (", SSC="..tag.SSC.."\n") or "\n")
-- credential (end-user tag)
if (tag.Type=="SAM" and tag.raw=='9f') then
res = res.."Remaining Header Area\n"
for i=0, (#tag.data) do
res = res..tag.data[i].." "
end
res = res.."\nBackup Area\n"
for i=0, (#tag.Bck) do
res = res..tag.Bck[i].." "
end
res = res.."\nTime Area\n"
for i=0, (#tag.MTC) do
res = res..tag.MTC[i].." "
end
-- Master Token specific
elseif (tag.Type~="SAM") then
res = res .."Master-Token Area\nStamp: "
res= res..tag.SSC.." "
for i=0, tag.Stamp_len-2 do
res = res..tag.data[i].." "
end
res=res.."\nunused payload\n"
for i=0, (#tag.data-tag.Stamp_len-1) do
res = res..tag.data[i].." "
end
bytes=tagToBytes(tag)
local mtcrc=calcMtCrc(bytes)
res=res.."\nMaster-Token CRC: "
res = res ..tag.MTC[1].." ("..((tag.MTC[1]==mtcrc) and "valid" or "error")..")"
-- 'Gantner User-Credential' specific
elseif (tag.Type=="SAM" and (tag.raw=='08' or tag.raw=='09')) then
print(acgreen.."Gantner Detected"..acoff)
end
return res
else print(acred.."no valid Tag in dumpCDF"..acoff) end
end
---
-- dump single segment
function dumpSegment(tag, index)
local i=index
local i2
local dp=0 --data-position in table
local res="" --result
local raw="" --raw-header
-- segment
if ( (istable(tag.SEG[i])) and tag.Type=="SAM" and tag.raw=="9f") then
if (istable(tag.SEG[i].raw)) then
for k,v in pairs(tag.SEG[i].raw) do
raw=raw..v.." "
end
end
-- segment header
res = res..accyan.."Segment "..("%02d"):format(tag.SEG[i].index)..acoff..": "
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).."), "
res = res .."len="..("%04d"):format(tag.SEG[i].len)..", WRP="..("%02x"):format(tag.SEG[i].WRP)..", WRC="..("%02x"):format(tag.SEG[i].WRC)..", "
res = res .."RD="..("%02x"):format(tag.SEG[i].RD)..", CRC="..tag.SEG[i].crc.." "
res = res .."("..(checkSegmentCrc(tag, i) and acgreen.."valid" or acred.."error") ..acoff..")"
raw=""
-- WRC protected
if ((tag.SEG[i].WRC>0)) then
res = res .."\nWRC protected area:\n"
for i2=dp, dp+tag.SEG[i].WRC-1 do
res = res..tag.SEG[i].data[i2].." "
dp=dp+1
end
end
-- WRP mprotected
if (tag.SEG[i].WRP>tag.SEG[i].WRC) then
res = res .."\nRemaining write protected area:\n"
for i2=dp, dp+(tag.SEG[i].WRP-tag.SEG[i].WRC)-1 do
res = res..tag.SEG[i].data[i2].." "
dp=dp+1
end
end
-- payload
if (#tag.SEG[i].data-dp>0) then
res = res .."\nRemaining segment payload:\n"
for i2=dp, #tag.SEG[i].data-2 do
res = res..tag.SEG[i].data[dp].." "
dp=dp+1
end
if (tag.SEG[i].kgh) then
res = res..tag.SEG[i].data[dp].." (KGH: "..(checkKghCrc(tag, i) and acgreen.."valid" or acred.."error") ..acoff..")"
else res = res..tag.SEG[i].data[dp] end
end
dp=0
return res
else
return print(acred.."Segment not found"..acoff)
end
end
---
-- return bytes 'sstrat' to 'send' from a table
function dumpTable(tab, header, tstart, tend)
res=""
for i=tstart, tend do
res=res..tab[i].." "
end
if (#header == 0) then
return res
else
return (header.." #"..(tend-tstart+1).."\n"..res)
end
end
---
-- dump 3rd Party Cash
function dump3rdPartyCash1(tag , seg)
local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
local stamp=tag.SEG[seg].data[0].." "..tag.SEG[seg].data[1].." "..tag.SEG[seg].data[2]
local datastamp=tag.SEG[seg].data[20].." "..tag.SEG[seg].data[21].." "..tag.SEG[seg].data[22]
local balance=tonumber(tag.SEG[seg].data[32]..tag.SEG[seg].data[33] ,16)
local balancecrc=utils.Crc8Legic(uid..tag.SEG[seg].data[32]..tag.SEG[seg].data[33])
local mirror=tonumber(tag.SEG[seg].data[35]..tag.SEG[seg].data[36] ,16)
local mirrorcrc=utils.Crc8Legic(uid..tag.SEG[seg].data[35]..tag.SEG[seg].data[36])
local lastbal0=tonumber(tag.SEG[seg].data[39]..tag.SEG[seg].data[40] ,16)
local lastbal1=tonumber(tag.SEG[seg].data[41]..tag.SEG[seg].data[42] ,16)
local lastbal2=tonumber(tag.SEG[seg].data[43]..tag.SEG[seg].data[44] ,16)
test=""
-- display decoded/known stuff
print("\n------------------------------")
print("Tag-ID:\t\t "..uid)
print("Stamp:\t\t "..stamp)
print("UID-Mapping: \t\t"..("%06d"):format(tonumber(tag.SEG[seg].data[46]..tag.SEG[seg].data[47]..tag.SEG[seg].data[48], 16)))
print("------------------------------")
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])..")")
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])..")")
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])..")")
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])..")")
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])..")")
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])..")")
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])..")")
print("------------------------------")
print(string.format("Balance:\t\t %3.2f", balance/100).." ".."("..compareCrc(balancecrc, tag.SEG[seg].data[34])..")")
print(string.format("Shadow:\t\t\t %3.2f", mirror/100).." ".."("..compareCrc(balancecrc, tag.SEG[seg].data[37])..")")
print("------------------------------")
print(string.format("History 1:\t\t %3.2f", lastbal0/100))
print(string.format("History 2:\t\t %3.2f", lastbal1/100))
print(string.format("History 3:\t\t %3.2f", lastbal2/100))
print("------------------------------\n")
end
---
-- dump Legic-Cash data
function dumpLegicCash(tag, x)
if istable(tag.SEG[x]) == false then return end
io.write("in Segment "..tag.SEG[x].index.." :\n")
print("--------------------------------\n\tLegic-Cash Values\n--------------------------------")
local limit, curr, balance, rid, tcv
-- currency of balance & limit
curr=string.upper(tag.SEG[x].data[8]..tag.SEG[x].data[9])
if currency[curr] ~= nil then
curr = currency[curr]
end
-- maximum balance
limit=string.format("%4.2f", tonumber(tag.SEG[x].data[10]..tag.SEG[x].data[11]..tag.SEG[x].data[12], 16)/100)
-- current balance
balance=string.format("%4.2f", tonumber(tag.SEG[x].data[15]..tag.SEG[x].data[16]..tag.SEG[x].data[17], 16)/100)
-- reader-id who wrote last transaction
rid=tonumber(tag.SEG[x].data[18]..tag.SEG[x].data[19]..tag.SEG[x].data[20], 16)
-- transaction counter value
tcv=tonumber(tag.SEG[x].data[29], 16)
print("Currency:\t\t "..curr)
print("Limit:\t\t\t "..limit)
print("Balance:\t\t "..balance)
print("Transaction Counter:\t "..tcv)
print("Reader-ID:\t\t "..rid.."\n--------------------------------\n")
end
---
-- raw 3rd-party
function print3rdPartyCash1(tag, x)
if istable(tag.SEG[x]) == false then return end
local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
print("\n\t\tStamp : "..dumpTable(tag.SEG[x].data, "", 0 , 2))
print("\t\tBlock 0: "..dumpTable(tag.SEG[x].data, "", 3 , 18))
print()
print("\t\tBlock 1: "..dumpTable(tag.SEG[x].data, "", 19, 30))
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])..")")
print()
print("\t\tBlock 2: "..dumpTable(tag.SEG[x].data, "", 32, 33))
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])..")")
print()
print("\t\tBlock 3: "..dumpTable(tag.SEG[x].data, "", 35, 36))
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])..")")
print()
print("\t\tyet unknown: "..tag.SEG[x].data[38])
print()
print("\t\tHisatory 1: "..dumpTable(tag.SEG[x].data, "", 39, 40))
print("\t\tHisatory 2: "..dumpTable(tag.SEG[x].data, "", 41, 42))
print("\t\tHisatory 3: "..dumpTable(tag.SEG[x].data, "", 43, 44))
print()
print("\t\tyet unknown: "..tag.SEG[x].data[45])
print()
print("\t\tKGH-UID HEX: "..dumpTable(tag.SEG[x].data, "", 46, 48))
print("\t\tBlock 4: "..dumpTable(tag.SEG[x].data, "", 49, 54))
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])..")")
print()
print("\t\tBlock 5: "..dumpTable(tag.SEG[x].data, "", 56, 61))
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])..")")
print()
print("\t\tBlock 6: "..dumpTable(tag.SEG[x].data, "", 63, 72))
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])..")")
print()
print("\t\tBlock 7: "..dumpTable(tag.SEG[x].data, "", 74, 88))
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])..")")
print()
print("\t\tBlock 8: "..dumpTable(tag.SEG[x].data, "", 90, 94))
end
--- Token related --
---
-- make token
function makeToken()
local mt={
['Type'] = {"SAM", "SAM63", "SAM64", "IAM", "GAM"},
['DCF'] = {"60ea", "31fa", "30fa", "80fa", "f0fa"},
['WRP'] = {"15", "2", "2", "2", "2"},
['WRC'] = {"01", "02", "02", "00", "00"},
['RD'] = {"01", "00", "00", "00", "00"},
['Stamp'] = {"00", "00", "00", "00", "00"},
['Segment'] = {"0d", "c0", "04", "00", "be", "01", "02", "03", "04", "01", "02", "03", "04"}
}
ttype=""
for k, v in pairs(mt.Type) do
ttype = ttype..k..") "..v.." "
end
mtq = tonumber(input("select number for Token-Type\n"..ttype, '1'), 10)
if (type(mtq) ~= "number") then return print("selection invalid!")
elseif (mtq > #mt.Type) then return print("selection invalid!")
else print("Token-Type '"..mt.Type[mtq].."' selected") end
local raw = calcHeaderRaw(mt.WRP[mtq], mt.WRC[mtq], mt.RD[mtq])
local mtCRC = "00"
bytes = {"01", "02", "03", "04", "cb", string.sub(mt.DCF[mtq], 0, 2), string.sub(mt.DCF[mtq], 3), raw,
"00", "00", "00", "00", "00", "00", "00", "00",
"00", "00", "00", "00", "00", "00"}
if (mtq == 1) then
for i = 0, #mt.Segment do
table.insert(bytes, mt.Segment[i])
end
bytes[9] = "ff"
end
-- fill bytes
for i = #bytes, 1023 do table.insert(bytes, "00") end
-- if Master-Token -> calc Master-Token-CRC
if (mtq>1) then bytes[22] = calcMtCrc(bytes) end
local tempTag = createTagTable()
-- remove segment if MasterToken
if (mtq>1) then tempTag.SEG[0] = nil end
return bytesToTag(bytes, tempTag)
end
---
-- edit token-data
function editTag(tag)
-- for simulation it makes sense to edit everything
local edit_sim = "MCD MSN0 MSN1 MSN2 MCC DCFl DCFh WRP WRC RD"
-- on real tags it makes only sense to edit DCF, WRP, WRC, RD
local edit_real = "DCFl DCFh WRP WRC RD"
if (confirm(acyellow.."do you want to edit non-writeable values (e.g. for simulation)?"..acoff)) then
edit_tag = edit_sim
else edit_tag = edit_real end
if(istable(tag)) then
for k,v in pairs(tag) do
if(type(v) ~= "table" and type(v) ~= "boolean" and string.find(edit_tag, k)) then
tag[k] = input("value for: "..accyan..k..acoff, v)
end
end
if (tag.Type == "SAM") then ttype = "Header"; else ttype = "Stamp"; end
if (confirm(acyellow.."do you want to edit "..ttype.." Data?"..acoff)) then
-- master-token specific
if(istable(tag.Bck) == false) then
-- stamp-data length=(0xfc-DCFh)
-- on MT: SSC holds the Starting Stamp Character (Stamp0)
tag.SSC=input(ttype.."0: ", tag.SSC)
-- rest of stamp-bytes are in tag.data 0..n
for i=0, (tonumber(0xfc ,10)-("%d"):format('0x'..tag.DCFh))-2 do
tag.data[i] = input(ttype.. i+1 ..": ", tag.data[i])
end
else
--- on credentials byte7 should always be 9f and byte8 ff
-- on Master-Token not (even on SAM63/64 not)
-- tag.SSC=input(ttype.."0: ", tag.SSC)
for i=0, #tag.data do
tag.data[i] = input(ttype.. i ..": ", tag.data[i])
end
end
end
bytes = tagToBytes(tag)
--- check data-consistency (calculate tag.raw)
bytes[8] = calcHeaderRaw(tag.WRP, tag.WRC, tag.RD)
--- Master-Token specific
-- should be triggered if a SAM was converted to a non-SAM (user-Token to Master-Token)
-- or a Master-Token has being edited (also SAM64 & SAM63 - which are in fact Master-Token)
if(tag.Type ~= "SAM" or bytes[6]..bytes[7] ~= "60ea") then
-- calc new Master-Token crc
bytes[22] = calcMtCrc(bytes)
else
-- ensure tag.SSC set to 'ff' on credential-token (SAM)
bytes[9] = 'ff'
-- if a Master-Token was converted to a Credential-Token
-- lets unset the Time-Area to 00 00 (will contain Stamp-Data on MT)
bytes[21] = '00'
bytes[22] = '00'
end
tag = bytesToTag(bytes, tag)
end
end
---
-- calculates header-byte (addr 0x07)
function calcHeaderRaw(wrp, wrc, rd)
wrp = ("%02x"):format(tonumber(wrp, 10))
rd = tonumber(rd, 16)
local res = ("%02x"):format(tonumber(wrp, 16)+tonumber(wrc.."0", 16)+((rd>0) and tonumber("8"..(rd-1), 16) or 0))
return res
end
---
-- determine TagType (bits 0..6 of DCFlow)
function getTokenType(DCFl)
--[[
0x00–0x2f IAM
0x30–0x6f SAM
0x70–0x7f GAM
]]--
local tt = tonumber(bbit("0x"..DCFl,0,7),10)
if (tt >= 0 and tt <= 47) then tt = "IAM"
elseif (tt == 49) then tt = "SAM63"
elseif (tt == 48) then tt = "SAM64"
elseif (tt >= 50 and tt <= 111) then tt = "SAM"
elseif (tt >= 112 and tt <= 127) then tt = "GAM"
else tt = "???" end
return tt
end
---
-- clear beackup-area of a virtual tag
function clearBackupArea(tag)
for i=1, #tag.Bck do
tag.Bck[i]='00'
end
return tag
end
--- Segment related --
---
-- get segmemnt-data from byte-table
function getSegmentData(bytes, start, index)
local segment={
['index'] = '00',
['flag'] = 'c',
['valid'] = 0,
['last'] = 0,
['len'] = 13,
['raw'] = {'00', '00', '00', '00'},
['WRP'] = 4,
['WRC'] = 0,
['RD'] = 0,
['crc'] = '00',
['data'] = {},
['kgh'] = false
}
if (bytes[start]) then
local i
-- #index
segment.index = index
-- flag = high nibble of byte 1
segment.flag = string.sub(bytes[start+1],0,1)
-- valid = bit 6 of byte 1
segment.valid = bbit("0x"..bytes[start+1],6,1)
-- last = bit 7 of byte 1
segment.last = bbit("0x"..bytes[start+1],7,1)
-- len = (byte 0)+(bit0-3 of byte 1)
segment.len = tonumber(bbit("0x"..bytes[start+1],0,4)..bytes[start],16)
-- raw segment header
segment.raw = {bytes[start], bytes[start+1], bytes[start+2], bytes[start+3]}
-- wrp (write proteted) = byte 2
segment.WRP = tonumber(bytes[start+2],16)
-- wrc (write control) - bit 4-6 of byte 3
segment.WRC = tonumber(bbit("0x"..bytes[start+3],4,3),16)
-- rd (read disabled) - bit 7 of byte 3
segment.RD = tonumber(bbit("0x"..bytes[start+3],7,1),16)
-- crc byte 4
segment.crc = bytes[start+4]
-- segment-data starts at segment.len - segment.header - segment.crc
for i=0, (segment.len-5) do
segment.data[i]=bytes[start+5+i]
end
return segment
else return false;
end
end
---
-- get index, start-aadr, length and content
function getSegmentStats(bytes)
local sStats = {}
local sValid, sLast, sLen, sStart, x
sStart=23
x=0
repeat
local s={}
-- valid = bit 6 of byte 1
sValid = bbit("0x"..bytes[sStart+1],6,1)
-- last = bit 7 of byte 1
sLast = bbit("0x"..bytes[sStart+1],7,1)
-- len = (byte 0)+(bit0-3 of byte 1)
sLen = tonumber(bbit("0x"..bytes[sStart+1],0,4)..bytes[sStart],16)
--print("index: "..("%02d"):format(x).." Len: "..sLen.." start:"..sStart.." end: "..(sStart+sLen-1))
s['index']=x
s['start']=sStart
s['end']=sStart+sLen-1
s['len']=sLen
if ( (sStart+sLen-1)>sStart ) then
table.insert(sStats, s)
end
sStart=sStart+sLen
x=x+1
until (sLast==1 or sValid==0 or x==126)
if (#sStats>0 ) then return sStats
else return false; end
end
---
-- regenerate segment-header (after edit)
function regenSegmentHeader(segment)
local seg=segment
local raw = segment.raw
local i
-- len bit0..7 | len=12bit=low nibble of byte1..byte0
raw[1]=("%02x"):format(bbit("0x"..("%03x"):format(seg.len),0,8))
-- high nibble of len bit6=valid , bit7=last of byte 1 | ?what are bit 5+6 for? maybe kgh?
raw[2]=("%02x"):format(bbit("0x"..("%03x"):format(seg.len),8,4)+bbit("0x"..("%02x"):format((seg.valid*64)+(seg.last*128)),0,8))
-- WRP
raw[3]=("%02x"):format(bbit("0x"..("%02x"):format(seg.WRP),0,8))
-- WRC + RD
raw[4]=("%02x"):format(tonumber((seg.WRC*16)+(seg.RD*128),10))
-- flag
seg.flag=string.sub(raw[2],0,1)
--print(raw[1].." "..raw[2].." "..raw[3].." "..raw[4])
if(#seg.data>(seg.len-5)) then
print("current payload: ".. #seg.data .." - desired payload: ".. seg.len-5)
print(acyellow.."Data-Length has being reduced:"..acgreen.." auto-removing "..acyellow.. #seg.data-(seg.len-5) ..acgreen .." bytes from Payload!"..acoff);
for i=(seg.len-5), #seg.data-1 do
table.remove(seg.data)
end
elseif (#seg.data<(seg.len-5)) then
print("current payload: ".. #seg.data .." - desired payload: ".. seg.len-5)
print(acyellow.."Data-Length has being extended:"..acgreen.." auto-adding "..acyellow..(seg.len-5)-#seg.data ..acgreen .." bytes to Payload!"..acoff);
for i=#seg.data, (seg.len-5-1) do
table.insert(seg.data, '00')
end
end
return seg
end
---
-- edit segment helper
function editSegment(tag, index)
local k,v
local edit_possible="valid len RD WRP WRC Stamp Payload"
if (istable(tag.SEG[index])) then
for k,v in pairs(tag.SEG[index]) do
if(string.find(edit_possible,k)) then
tag.SEG[index][k]=tonumber(input(accyan..k..acoff..": ", v),10)
end
end
else print("Segment with Index: "..("%02d"):format(index).." not found in Tag")
return false
end
regenSegmentHeader(tag.SEG[index])
print("\n"..dumpSegment(tag, index).."\n")
return tag
end
---
-- edit Segment Data
function editSegmentData(data, uid)
io.write("\n")
if istable(data) == false then print("no Segment-Data found") end
local lc = check4LegicCash(data, uid)
for i=0, #data-1 do
data[i]=input(accyan.."Data"..i..acoff..": ", data[i])
end
if (lc) then
data = fixLegicCash(data, uid)
end
return data
end
---
-- list available segmets in virtual tag
function segmentList(tag)
local i
local res = ""
if (istable(tag.SEG[0])) then
for i=0, #tag.SEG do
res = res .. tag.SEG[i].index .. " "
end
return res
else print("no Segments found in Tag")
return false
end
end
---
-- helper to selecting a segment
function selectSegment(tag)
local sel
if (istable(tag.SEG[0])) then
print("availabe Segments:\n"..segmentList(tag))
sel=input("select Segment: ", '00')
sel=tonumber(sel,10)
if (sel) then return sel
else return '0' end
else
print("\nno Segments found")
return false
end
end
---
-- add segment
function addSegment(tag)
local i
local segment={
['index'] = '00',
['flag'] = 'c',
['valid'] = 1,
['last'] = 1,
['len'] = 13,
['raw'] = {'0d', '40', '04', '00'},
['WRP'] = 4,
['WRC'] = 0,
['RD'] = 0,
['crc'] = '00',
['data'] = {},
['kgh'] = false
}
if (istable(tag.SEG[0])) then
tag.SEG[#tag.SEG].last=0
table.insert(tag.SEG, segment)
for i=0, 8 do
tag.SEG[#tag.SEG].data[i]=("%02x"):format(i)
end
tag.SEG[#tag.SEG].index=("%02d"):format(#tag.SEG)
return tag
else
print("no Segment-Table found")
end
end
---
-- get only the stamp-bytes of a segment
function getSegmentStamp(seg, bytes)
local stamp=""
local stamp_len=7
--- the 'real' stamp on MIM is not really easy to tell for me since the 'data-block' covers stamp0..stampn+data0..datan
-- there a no stamps longer than 7 bytes & they are write-protected by default , and I have not seen user-credntials
-- with stamps smaller 3 bytes (except: Master-Token)
-- WRP -> Read/Write Protection
-- WRC -> Read/Write Condition
-- RD depends on WRC - if WRC > 0 and RD=1: only reader with matching #WRC of Stamp-bytes in their Database have Read-Access to the Tag
if (seg.WRP<7) then stamp_len=(seg.WRP) end
for i=1, (stamp_len) do
stamp=stamp..seg.data[i-1]
end
if (bytes) then
stamp=str2bytes(stamp)
return stamp
else return stamp end
end
---
-- edit stamp of a segment
function editStamp(new_stamp, uid, data)
local stamp=str2bytes(new_stamp)
for i=0, #stamp-1 do
data[i]=stamp[i+1]
end
-- now fill in stamp
for i=0, (string.len(new_stamp)/2)-1 do
data[i]=stamp[i+1]
end
return fix3rdPartyCash1(uid, data)
end
---
-- autoselect special/known segments
function autoSelectSegment(tag, s)
local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
local x=#tag.SEG+1
local res = false
io.write("autoSelect ")
--- search for desired segment-type
-- 3rd Party Segment
if (s=="3rdparty") then
repeat
io.write(". ")
x=x-1
res=check43rdPartyCash1(uid, tag.SEG[x].data)
until ( res or x==0 )
end
-- Legic-Cash Segment
if (s=="legiccash") then
repeat
io.write(". ")
x=x-1
res=check4LegicCash(tag.SEG[x].data, uid)
until ( res or x==0 )
end
---
-- segment found
if (res) then
io.write("\nautoselected Index: "..string.format("%02d", x).."\n")
return x
end
---
-- nothing found
io.write(acyellow.."no Segment found\n"..acoff)
return -1
end
---
-- delete segment (except segment 00)
function delSegment(tag, index)
if (istable(tag.SEG[0])) then
local i
if (type(index)=="string") then index=tonumber(index,10) end
if (index > 0) then
table.remove(tag.SEG, index)
for i=0, #tag.SEG do
tag.SEG[i].index=("%02d"):format(i)
end
end
if(istable(tag.SEG[#tag.SEG])) then tag.SEG[#tag.SEG].last=1 end
return tag
end
end
---
-- edit uid 3rd party cash
function edit3rdUid(mapid, uid, data)
mapid=("%06x"):format(tonumber(mapid, 10))
data[46]=string.sub(mapid, 1 ,2)
data[47]=string.sub(mapid, 3 ,4)
data[48]=string.sub(mapid, 5 ,6)
return fix3rdPartyCash1(uid, data)
end
---
-- edit balance 3rd party cash
function edit3rdCash(new_cash, uid, data)
new_cash=("%04x"):format(new_cash)
data[32]=string.sub(new_cash, 0,2)
data[33]=string.sub(new_cash, 3,4)
data[34]=("%02x"):format(utils.Crc8Legic(uid..new_cash))
data[35]=string.sub(new_cash, 0,2)
data[36]=string.sub(new_cash, 3,4)
data[37]=("%02x"):format(utils.Crc8Legic(uid..new_cash))
data[39]=string.sub(new_cash, 0,2)
data[40]=string.sub(new_cash, 3,4)
data[41]='00'
data[42]='00'
data[43]='00'
data[44]='00'
return fix3rdPartyCash1(uid, data)
end
---
-- edit 3rd-party cash
function edit3rdPartyCash1(tag, x)
local uid=tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
if (confirm("\nedit Balance?")) then
local new_cash=input("enter new Balance≤\nwithout comma and without currency-sign! (0-65535)", "100")
tag.SEG[x].data=edit3rdCash(new_cash, uid, tag.SEG[x].data)
end
-- change User-ID (used for online-account-mapping)
if (confirm("\nedit UserID-Mapping?")) then
local new_mapid=input("enter new UserID (6-digit value)", "012345")
tag.SEG[x].data=edit3rdUid(new_mapid, uid, tag.SEG[x].data)
end
if (confirm("\nedit Stamp?")) then
local new_stamp=input("enter new Stamp", getSegmentStamp(tag.SEG[x]))
tag.SEG[x].data=editStamp(new_stamp, uid, tag.SEG[x].data)
new_stamp=getSegmentStamp(tag.SEG[x], 'true')
print("stamp_bytes: "..#new_stamp)
-- replace stamp in 'block 1' also
io.write("editing stamp in Block 1 also ")
for i=20, (20+#new_stamp-1) do
tag.SEG[x].data[i]=new_stamp[i-19]
io.write(".");
end
print(" done")
-- fix known checksums
tag.SEG[x].data=fix3rdPartyCash1(uid, tag.SEG[x].data)
end
return tag
end
---
-- edit Legic Cash
function editLegicCash(data, uid)
local limit, curr, balance, rid, tcv
-- currency of balance & limit
curr=currency[data[8]..data[9]]
-- maximum balance
limit=string.format("%4.2f", tonumber(data[10]..data[11]..data[12], 16)/100)
-- current balance
balance=string.format("%4.2f", tonumber(data[15]..data[16]..data[17], 16)/100)
-- reader-id who wrote last transaction
rid=tonumber(data[18]..data[19]..data[20], 16)
-- transaction counter value
tcv=tonumber(data[29], 16)
-- edit currency
if (confirm(accyan.."change Currency?"..acoff)) then
for k, v in pairs(currency) do io.write(k .. " = " .. v .. "\n") end
curr=input(accyan.."enter the 4-digit Hex for the new Currency:"..acoff, data[8]..data[9])
data[8]=string.sub(curr, 1, 2)
data[9]=string.sub(curr, 3, 4)
end
-- edit limit
if (confirm(accyan.."change Limit?"..acoff)) then
limit=string.format("%06x", input(accyan.."enter the Decimal for the new Limit:"..acoff, limit))
data[10]=string.sub(limit, 1, 2)
data[11]=string.sub(limit, 3, 4)
data[12]=string.sub(limit, 5, 6)
end
-- edit balance
if (confirm(accyan.."change Balance?"..acoff)) then
balance=string.format("%06x", input(accyan.."enter the Decimal for the new Balance:"..acoff, balance))
print("Balance: "..balance)
data[15]=string.sub(balance, 1, 2)
data[16]=string.sub(balance, 3, 4)
data[17]=string.sub(balance, 5, 6)
end
-- edit transaction-counter
if (confirm(accyan.."change Transaction-Counter?"..acoff)) then
tcv=string.format("%02x", input(accyan.."enter the 4-digit Hex for the new Currency:"..acoff, data[29]))
data[29]=tcv
end
-- edit reader.id
if (confirm(accyan.."change Last-Reader-ID?"..acoff)) then
rid=string.format("%06x", input(accyan.."enter the Decimal for the new Balance:"..acoff, rid))
print("Balance: "..balance)
data[18]=string.sub(rid, 1, 2)
data[19]=string.sub(rid, 3, 4)
data[20]=string.sub(rid, 5, 6)
end
return fixLegicCash(data, uid)
end
---
-- chack for signature of a 'Legic-Cash-Segment'
function check4LegicCash(data, uid)
if(#data==32) then
local stamp_len=(#data-25)
local stamp=""
for i=0, stamp_len-1 do
stamp=stamp..data[i].." "
end
if (data[7]=="01") then
if (("%04x"):format(utils.Crc16Legic(dumpTable(data, "", 0, 12), uid)) == data[13]..data[14]) then
if (("%04x"):format(utils.Crc16Legic(dumpTable(data, "", 15, 20), uid)) == data[21]..data[22]) then
if (("%04x"):format(utils.Crc16Legic(dumpTable(data, "", 23, 29), uid)) == data[30]..data[31]) then
io.write(accyan.."Legic-Cash Segment detected "..acoff)
return true
end
end
end
end
end
return false
end
---
-- chack for signature of a '3rd Party Cash-Segment' - not all bytes know until yet !!
function check43rdPartyCash1(uid, data)
if(#data==95) then
-- too explicit checking will avoid fixing ;-)
if (string.find(compareCrc(utils.Crc8Legic(uid..dumpTable(data, "", 19, 30)), data[31]),"valid")) then
--if (compareCrc(utils.Crc8Legic(uid..data[32]..data[33]), data[34])=="valid") then
--if (compareCrc(utils.Crc8Legic(uid..data[35]..data[36]), data[37])=="valid") then
--if (compareCrc(utils.Crc8Legic(uid..dumpTable(data, "", 56, 61)), data[62])=="valid") then
--if (compareCrc(utils.Crc8Legic(uid..dumpTable(data, "", 74, 88)), data[89])=="valid") then
io.write(accyan.."3rd Party Cash-Segment detected "..acoff)
return true
--end
--end
--end
--end
end
end
return false
end
--- CRC related ---
---
-- build segmentCrc credentials
function segmentCrcCredentials(tag, segid)
if (istable(tag.SEG[0])) then
local cred = tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2
cred = cred ..tag.SEG[segid].raw[1]..tag.SEG[segid].raw[2]..tag.SEG[segid].raw[3]..tag.SEG[segid].raw[4]
return cred
else return print(acyellow.."Master-Token / unsegmented Tag!"..acoff) end
end
---
-- build kghCrc credentials
function kghCrcCredentials(tag, segid)
if (istable(tag) and istable(tag.SEG[0])) then
local x='00'
if (type(segid)=="string") then segid=tonumber(segid,10) end
if (segid>0) then x='93' end
local cred = tag.MCD..tag.MSN0..tag.MSN1..tag.MSN2..("%02x"):format(tag.SEG[segid].WRP)
cred = cred..("%02x"):format(tag.SEG[segid].WRC)..("%02x"):format(tag.SEG[segid].RD)..x
for i=0, #tag.SEG[segid].data-2 do
cred = cred..tag.SEG[segid].data[i]
end
return cred
end
end
---
-- compare two bytes
function compareCrc(calc, guess)
calc=("%02x"):format(calc)
if (calc==guess) then return acgreen.."valid"..acoff
else return acred.."error "..acoff..calc.."!="..guess end
end
---
-- compare 4 bytes
function compareCrc16(calc, guess)
calc=("%04x"):format(calc)
if (calc==guess) then return acgreen.."valid"..acoff
else return acred.."error "..acoff..calc.."!="..guess end
end
---
-- repair / fix crc's of a 'Legic-Cash-Segment'
function fixLegicCash(data, uid)
if(#data==32 and data[7]=="01") then
local crc1, crc2, crc3
-- set shadow-balance equal to balance
data[23]=data[15]
data[24]=data[16]
data[25]=data[17]
-- set shadow-last-reader to last-reader
data[26]=data[18]
data[27]=data[19]
data[28]=data[20]
-- calculate all crc's
crc1=("%04x"):format(utils.Crc16Legic(dumpTable(data, "", 0, 12), uid))
crc2=("%04x"):format(utils.Crc16Legic(dumpTable(data, "", 15, 20), uid))
crc3=("%04x"):format(utils.Crc16Legic(dumpTable(data, "", 23, 29), uid))
-- set crc's
data[13]=string.sub(crc1, 1, 2)
data[14]=string.sub(crc1, 3, 4)
data[21]=string.sub(crc2, 1, 2)
data[22]=string.sub(crc2, 3, 4)
data[30]=string.sub(crc3, 1, 2)
data[31]=string.sub(crc3, 3, 4)
return data
end
end
---
-- repair / fix (yet known) crc's of a '3rd Party Cash-Segment' - not all bytes know until yet !!
function fix3rdPartyCash1(uid, data)
if(#data==95) then
-- checksum 1
data[31]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 19, 30)))
-- checksum 2
data[34]=("%02x"):format(utils.Crc8Legic(uid..data[32]..data[33]))
-- checksum 3
data[37]=("%02x"):format(utils.Crc8Legic(uid..data[35]..data[36]))
-- checksum 4
data[55]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 46, 54)))
-- checksum 5
data[62]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 56, 61)))
-- checksum 6
data[73]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 63, 72)))
-- checksum 7
data[89]=("%02x"):format(utils.Crc8Legic(uid..dumpTable(data, "", 74, 88)))
return data
end
end
---
-- calculate Master-Token crc
function calcMtCrc(bytes)
--print(#bytes)
local cmd=bytes[1]..bytes[2]..bytes[3]..bytes[4]..bytes[7]..bytes[6]..bytes[8]
local len=(tonumber(0xfc ,10)-("%d"):format('0x'..bytes[7]))
for i=1, len do
cmd=cmd..bytes[8+i]
end
local res=("%02x"):format(utils.Crc8Legic(cmd))
return res
end
---
-- calculate segmentCRC for a given segment
function calcSegmentCrc(tag, segid)
if (istable(tag.SEG[0])) then
-- check if a 'Kaber Group Header' exists
local data=segmentCrcCredentials(tag, segid)
return ("%02x"):format(utils.Crc8Legic(data))
end
end
---
-- calcuate kghCRC for a given segment
function calcKghCrc(tag, segid)
if (istable(tag.SEG[0])) then
-- check if a 'Kaber Group Header' exists
local i
local data=kghCrcCredentials(tag, segid)
return ("%02x"):format(utils.Crc8Legic(data))
end
end
---
-- check all segment-crc
function checkAllSegCrc(tag)
if (istable(tag.SEG[0])) then
for i=0, #tag.SEG do
crc=calcSegmentCrc(tag, i)
tag.SEG[i].crc=crc
end
else return print(acyellow.."Master-Token / unsegmented Tag"..acoff) end
end
---
-- check all segmnet-crc
function checkAllKghCrc(tag)
if (istable(tag.SEG[0])) then
for i=0, #tag.SEG do
crc=calcKghCrc(tag, i)
if (tag.SEG[i].kgh) then
tag.SEG[i].data[#tag.SEG[i].data-1]=crc
end
end
end
end
---
-- validate segmentCRC for a given segment
function checkSegmentCrc(tag, segid)
local data=segmentCrcCredentials(tag, segid)
if (("%02x"):format(utils.Crc8Legic(data))==tag.SEG[segid].crc) then
return true
end
return false
end
---
-- validate kghCRC to segment in tag-table
function checkKghCrc(tag, segid)
if (type(tag.SEG[segid])=='table') then
if (tag.data[3]=="11" and tag.raw=="9f" and tag.SSC=="ff") then
local data=kghCrcCredentials(tag, segid)
if (("%02x"):format(utils.Crc8Legic(data))==tag.SEG[segid].data[tag.SEG[segid].len-5-1]) then return true; end
else return false; end
else oops(acred.."'Kaba Group header' detected but no Segment-Data found"..ansocolors.reset) end
end
---
-- helptext for modify-mode
function modifyHelp()
local t=[[
Data I/O Segment Manipulation Token-Data
----------------- -------------------- ---------------------
]]..acy..[[rt]]..acr..[[ => read Tag ]]..acy..[[as]]..acr..[[ => add Segment ]]..acy..[[mt]]..acr..[[ => make Token
]]..acy..[[wt]]..acr..[[ => write Tag ]]..acy..[[es]]..acr..[[ => edit Segment Header ]]..acy..[[et]]..acr..[[ => edit Token data
]]..acy..[[ed]]..acr..[[ => edit Segment Data ]]..acy..[[tk]]..acr..[[ => toggle KGH-Flag
File I/O ]]..acy..[[rs]]..acr..[[ => remove Segment
----------------- ]]..acy..[[cc]]..acr..[[ => check Segment-CRC
]]..acy..[[lf]]..acr..[[ => load bin File ]]..acy..[[ck]]..acr..[[ => check KGH
]]..acy..[[sf]]..acr..[[ => save eml/bin File ]]..acy..[[ds]]..acr..[[ => dump Segments
]]..acy..[[xf]]..acr..[[ => xor to File
Virtual Tags tagMap (partial) known Segments
-------------------------------- --------------------- ---------------------------
]]..acy..[[ct]]..acr..[[ => copy mainTag to backupTag ]]..acy..[[mm]]..acr..[[ => make (new) Map ]]..acy..[[dlc]]..acr..[[ => dump Legic-Cash
]]..acy..[[tc]]..acr..[[ => copy backupTag to mainTag ]]..acy..[[em]]..acr..[[ => edit Map submenu ]]..acy..[[elc]]..acr..[[ => edit Legic-Cash
]]..acy..[[tt]]..acr..[[ => switch mainTag & backupTag ]]..acy..[[lm]]..acr..[[ => load map from file ]]..acy..[[d3p]]..acr..[[ => dump 3rd-Party-Cash
]]..acy..[[di]]..acr..[[ => dump mainTag ]]..acy..[[sm]]..acr..[[ => save map to file ]]..acy..[[e3p]]..acr..[[ => edit 3rd-Party-Cash
]]..acy..[[do]]..acr..[[ => dump backupTag
]]..acy..[[h]]..acr..[[ => this help ]]..acy..[[q]]..acr..[[ => quit
]]
return t
end
---
-- modify Tag (interactive)
function modifyMode()
local i, backupTAG, outTAG, inTAG, outfile, infile, sel, segment, bytes, outbytes, tagMap
actions = {
---
-- helptext
["h"] = function(x)
print(" Version: "..acgreen..version..acr);
print(modifyHelp())
print("\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 ""))
print("")
end,
---
-- read real Tag with PM3 into virtual 'mainTAG'
["rt"] = function(x)
inTAG=readFromPM3();
--actions.di()
end,
---
-- write content of virtual 'mainTAG' to real Tag with PM3
["wt"] = function(x)
writeToTag(inTAG)
end,
---
-- copy mainTAG to backupTAG
["ct"] = function(x)
print(accyan.."copy mainTAG to backupTAG"..acoff)
backupTAG=deepCopy(inTAG)
end,
---
-- copy backupTAG to mainTAG
["tc"] = function(x)
print(accyan.."copy backupTAG to mainTAG"..acoff)
inTAG=deepCopy(backupTAG)
end,
---
-- toggle between mainTAG and backupTAG
["tt"] = function(x)
-- copy main to temp
outTAG=deepCopy(inTAG)
-- copy backup to main
inTAG=deepCopy(backupTAG)
print(accyan.."toggle to "..accyan..((currentTag=='inTAG') and "backupTAG" or "mainTAG")..acoff)
if(currentTag=="inTAG") then currentTag='backupTAG'
else currentTag='inTAG' end
-- copy temp (main) to backup
backupTAG=deepCopy(outTAG)
end,
---
-- load file into mainTAG
["lf"] = function(x)
if (x and not x=="" and type(x)=='string' and file_check(x)) then
filename = x
else
filename = input("enter filename: ", "legic.temp")
end
inTAG=readFile(filename)
-- check for existing tagMap
local res, path = file_check(filename..".map")
if res then
if(confirm(accyan.."Mapping-File for "..acoff..path..accyan.." found - load it also?"..acoff)) then
tagMap=loadTagMap(filename..".map")
end
end
end,
---
-- save values of mainTAG to a file (xored with MCC of mainTAG)
["sf"] = function(x)
if istable(inTAG) then
outfile = input("enter filename:", "hf-legic-"..inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2)
bytes = tagToBytes(inTAG)
--bytes=xorBytes(bytes, inTAG.MCC)
if (bytes) then
writeFile(bytes, outfile)
end
end
end,
---
-- save values of mainTAG to a file (xored with 'specific' MCC)
["xf"] = function(x)
if istable(inTAG) then
outfile = input("enter filename:", "hf-legic-"..inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2)
crc = input("enter new crc: ('00' for a plain dump)", inTAG.MCC)
print("obfuscate with: "..crc)
bytes=tagToBytes(inTAG)
bytes[5]=crc
if (bytes) then
writeFile(bytes, outfile)
end
end
end,
---
-- dump mainTAG (and all Segments)
["di"] = function(x)
if (istable(inTAG)) then
local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
if(istable(inTAG.SEG[0])) then
for i=0, #inTAG.SEG do
if(check43rdPartyCash1(uid, inTAG.SEG[i].data)) then
io.write(accyan.."in Segment index: "..inTAG.SEG[i].index ..acoff.. "\n")
elseif(check4LegicCash(inTAG.SEG[i].data, uid)) then
io.write(accyan.."in Segment index: "..inTAG.SEG[i].index..acoff.."\n")
lc=true;
lci=inTAG.SEG[i].index;
end
end
end
print("\n"..dumpTag(inTAG).."\n")
if (lc) then actions["dlc"](lci) end
lc=false
end
end,
---
-- dump backupTAG (and all Segments)
["do"] = function(x) if (istable(backupTAG)) then print("\n"..dumpTag(backupTAG).."\n") end end,
---
-- create a empty tagMap
["mm"] = function(x)
-- clear existing tagMap and init
if (istable(inTAG)) then
tagMap=makeTagMap()
end
end,
---
-- edit a tagMap
["em"] = function(x)
if (istable(inTAG)==false) then
if (confirm("no mainTAG in memory!\nread from PM3?")) then
actions['rt']()
elseif (confirm("load from File?")) then
actions['lf']()
else return
end
end
if (istable(tagMap)==false) then actions['mm']() end
-- edit
tagMap=editTagMap(inTAG, tagMap)
end,
---
-- save a tagMap
["sm"] = function(x)
if (istable(tagMap)) then
if (istable(tagMap) and #tagMap.mappings>0) then
print(accyan.."Map contains "..acoff..#tagMap..accyan.." mappings"..acoff)
saveTagMap(tagMap, input(accyan.."enter filename:"..acoff, "Legic.map"))
else
print(acyellow.."no mappings in tagMap!"..acoff)
end
end
end,
---
-- load a tagMap
["lm"] = function(x)
tagMap = loadTagMap(input(accyan.."enter filename:"..acoff, "Legic.map"))
end,
---
-- dump single segment
["ds"] = function(x)
if (type(x)=="string" and string.len(x)>0) then
sel = tonumber(x,10)
else
sel = selectSegment(inTAG)
end
if (sel) then print("\n"..(dumpSegment(inTAG, sel) or acred.."no Segments available") ..acoff.."\n") end
end,
---
-- edit segment header
["es"] = function(x)
if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
else sel=selectSegment(inTAG) end
if (sel) then
if(istable(inTAG.SEG[0])) then
inTAG=editSegment(inTAG, sel)
inTAG.SEG[sel]=regenSegmentHeader(inTAG.SEG[sel])
else
print(acyellow.."no Segments in Tag"..acoff)
end
end
end,
---
-- add segment
["as"] = function(x)
if (istable(inTAG.SEG[0])) then
inTAG=addSegment(inTAG)
inTAG.SEG[#inTAG.SEG-1]=regenSegmentHeader(inTAG.SEG[#inTAG.SEG-1])
inTAG.SEG[#inTAG.SEG]=regenSegmentHeader(inTAG.SEG[#inTAG.SEG])
else print(accyan.."Master-Token / unsegmented Tag!"..acoff)
end
end,
---
-- remove segment
["rs"] = function(x)
if (istable(inTAG.SEG[0])) then
if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
else sel=selectSegment(inTAG) end
inTAG=delSegment(inTAG, sel)
for i=0, #inTAG.SEG do
inTAG.SEG[i]=regenSegmentHeader(inTAG.SEG[i])
end
end
end,
---
-- edit data-portion of single segment
["ed"] = function(x)
if (type(x) == "string" and string.len(x)>0) then sel=tonumber(x,10)
else sel = selectSegment(inTAG) end
if (istable(inTAG.SEG[sel])) then
local uid = inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
inTAG.SEG[sel].data = editSegmentData(inTAG.SEG[sel].data, uid)
end
end,
---
-- edit Tag (MCD, MSN, MCC etc.)
["et"] = function(x)
if (istable(inTAG)) then
editTag(inTAG)
end
end,
---
-- make (dummy) Token
["mt"] = function(x) inTAG=makeToken(); actions.di() end,
---
-- fix segment-crc on single segment
["ts"] = function(x)
if (type(x)=="string" and string.len(x)>0) then sel=tonumber(x,10)
else sel=selectSegment(inTAG) end
regenSegmentHeader(inTAG.SEG[sel])
end,
---
-- toggle kgh-crc-flag on a single segment
["tk"] = function(x)
if (istable(inTAG) and istable(inTAG.SEG[0])) then
if (type(x)=="string" and string.len(x)>0) then
sel = tonumber(x,10)
else
sel = selectSegment(inTAG)
end
if(inTAG.SEG[sel].kgh) then
inTAG.SEG[sel].kgh = false
else
inTAG.SEG[sel].kgh = true
end
end
end,
---
-- calculate LegicCrc8
["k"] = function(x)
if (type(x)=="string" and string.len(x)>0) then
print(("%02x"):format(utils.Crc8Legic(x)))
end
end,
---
-- noop
["xb"] = function(x)
end,
---
-- print string for LegicCrc8-calculation about single segment
["xc"] = function(x)
if (istable(inTAG) and istable(inTAG.SEG[0])) then
if (type(x)=="string" and string.len(x)>0) then
sel = tonumber(x,10)
else
sel = selectSegment(inTAG)
end
print("k "..kghCrcCredentials(inTAG, sel))
end
end,
---
-- fix legic-cash checksums
["flc"] = function(x)
if (type(x)=="string" and string.len(x)>0) then
x = tonumber(x,10)
else
x = selectSegment(inTAG)
end
local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
inTAG.SEG[x].data=fixLegicCash(inTAG.SEG[x].data, uid)
end,
---
-- edit legic-cash values fixLegicCash(data, uid)
["elc"] = function(x)
x=autoSelectSegment(inTAG, "legiccash")
local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
inTAG.SEG[x].data=editLegicCash(inTAG.SEG[x].data, uid)
end,
---
-- dump legic-cash human-readable
["dlc"] = function(x)
-- if segment index was user defined
if (type(x)=="string" and string.len(x)>0) then
x=tonumber(x,10)
print(string.format("User-Selected Index %02d", x))
else
-- or try to find match
x = autoSelectSegment(inTAG, "legiccash")
end
-- dump it
dumpLegicCash(inTAG, x)
end,
---
-- dump 3rd-party-cash-segment
["d3p"] = function(x)
local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
-- if segment index was user defined
if (type(x)=="string" and string.len(x)>0) then
x=tonumber(x,10)
print(string.format("User-Selected Index %02d", x))
else
-- or try to find match
x = autoSelectSegment(inTAG, "3rdparty")
end
if (istable(inTAG) and istable(inTAG.SEG[x]) and inTAG.SEG[x].len == 100) then
uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
if (check43rdPartyCash1(uid, inTAG.SEG[x].data)) then
dump3rdPartyCash1(inTAG, x)
end
end
end,
---
-- dump 3rd-party-cash-segment (raw blocks and checksums over 'known areas')
["r3p"] = function(x)
local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
-- if segment index was user defined
if (type(x)=="string" and string.len(x)>0) then
x=tonumber(x,10)
print(string.format("User-Selected Index %02d", x))
else
-- or try to find match
x = autoSelectSegment(inTAG, "3rdparty")
end
print3rdPartyCash1(inTAG, x)
end,
---
-- edit 3rd-party-cash-segment values (Balance, Mapping-UID, Stamp)
["e3p"] = function(x)
local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
-- if segment index was user defined
if (type(x)=="string" and string.len(x)>0) then
x=tonumber(x,10)
print(string.format("User-Selected Index %02d", x))
else
-- or try to find match
x = autoSelectSegment(inTAG, "3rdparty")
end
if (istable(inTAG) and istable(inTAG.SEG[x]) and inTAG.SEG[x].len == 100) then
inTAG=edit3rdPartyCash1(inTAG, x)
dump3rdPartyCash1(inTAG, x)
end
end,
---
-- force fixing 3rd-party-checksums
["f3p"] = function(x)
if(type(x)=="string" and string.len(x)>=2) then
x = tonumber(x, 10)
else
x = selectSegment(inTAG)
end
if (istable(inTAG.SEG[x])) then
local uid=inTAG.MCD..inTAG.MSN0..inTAG.MSN1..inTAG.MSN2
inTAG.SEG[x].data=fix3rdPartyCash1(uid, inTAG.SEG[x].data)
end
end,
---
-- get stamp from single segment
["gs"] = function(x)
if(type(x)=="string" and string.len(x)>=2) then
x = tonumber(x, 10)
else
x = selectSegment(inTAG)
end
local stamp=getSegmentStamp(inTAG.SEG[x])
print("Stamp : "..stamp)
stamp=str2bytes(stamp)
print("length: "..#stamp)
end,
---
-- calculate crc16
["c6"] = function(x) local crc16=string.format("%4.04x", utils.Crc16(x))
print(string.sub(crc16, 0,2).." "..string.sub(crc16, 3,4))
end,
---
-- check & fix segments-crc of all segments
["cc"] = function(x) if (istable(inTAG)) then checkAllSegCrc(inTAG) end end,
---
-- set backup-area-bytes to '00'
["cb"] = function(x)
if (istable(inTAG)) then
print(accyan.."purge BackupArea"..acoff)
inTAG=clearBackupArea(inTAG)
end
end,
---
-- check and fix all segments inTAG.SEG[x].kgh toggled 'on'
["ck"] = function(x) if (istable(inTAG)) then checkAllKghCrc(inTAG) end end,
---
-- check and fix all segments inTAG.SEG[x].kgh toggled 'on'
["tac"] = function(x)
if (colored_output) then
colored_output=false
else
colored_output=true
end
load_colors(colored_output)
end,
}
repeat
-- default message / prompt
ic=input("Legic command? ('"..acy.."h"..acr.."' for help - '"..acy.."q"..acr.."' for quit)", acy.."h"..acr)
-- command actions decisions (first match, longer commands before shorter)
if (type(actions[string.lower(string.sub(ic,0,3))])=='function') then
actions[string.lower(string.sub(ic,0,3))](string.sub(ic,5))
elseif (type(actions[string.lower(string.sub(ic,0,2))])=='function') then
actions[string.lower(string.sub(ic,0,2))](string.sub(ic,4))
elseif (type(actions[string.lower(string.sub(ic,0,1))])=='function') then
actions[string.lower(string.sub(ic,0,1))](string.sub(ic,3))
else
actions.h('')
end
until (string.sub(ic,0,1)=="q")
end
---
-- main function
function main(args)
-- set init colors/switch (can be toggled with 'tac' => 'toggle ansicolors')
load_colors(colored_output)
if (#args == 0 ) then modifyMode() end
--- variables
local inTAG, backupTAG, outTAG, outfile, interactive, crc
local ofs=false
local cfs=false
local dfs=false
-- just a spacer for better readability
print()
--- parse arguments
for o, a in getopt.getopt(args, 'hrmi:do:c:') do
-- display help
if o == "h" then return help(); end
-- read tag from PM3
if o == "r" then inTAG=readFromPM3() end
-- input file
if o == "i" then inTAG=readFile(a) end
-- dump virtual-Tag
if o == "d" then dfs=true end
-- interacive modifying
if o == "m" then
interactive = true
modifyMode()
end
-- xor (e.g. for clone or plain file)
if o == "c" then
cfs = true
crc = a
end
-- output file
if o == "o" then
outfile = a
ofs = true
end
end
-- file conversion (output to file)
if ofs == false then return end
-- dump infile / tag-read
if (dfs) then
print("-----------------------------------------")
print(dumpTag(inTAG))
end
bytes=tagToBytes(inTAG)
if (cfs) then
-- xor will be done in function writeFile
-- with the value of byte[5]
bytes[5]=crc
end
-- write to outfile
if (bytes) then
if (outfile) then
writeFile(bytes, outfile)
end
--- read real tag into virtual tag
-- inTAG=readFromPM3() end
--- or simply use the bytes that where wriiten
inTAG=bytesToTag(bytes, inTAG)
-- show new content
if (dfs) then
print("-----------------------------------------")
print(dumpTag(inTAG))
end
end
end
---
-- script start
main(args)
Reference in a new issue View git blame Copy permalink