X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/733eb42022728f5b22028d4e8860e4efe6f18a5c..b946d5f7f9380f6fb4966d675aacb4809b8124ba:/client/scripts/legic.lua?ds=sidebyside diff --git a/client/scripts/legic.lua b/client/scripts/legic.lua index dd119b03..73ef4791 100644 --- a/client/scripts/legic.lua +++ b/client/scripts/legic.lua @@ -1,4 +1,8 @@ --[[ +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 | @@ -11,73 +15,216 @@ +----+----+----+----+----+----+----+----+ 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) --]] example = "script run legic" author = "Mosci" +version = "1.0.3" + desc = [[ This script helps you to read, create and modify Legic Prime Tags (MIM22, MIM256, MIM1024) it's kinda interactive with following commands in three categories: - Data I/O Segment Manipulation File I/O ------------------- -------------------- --------------- - rt => read Tag ds => dump Segments lf => load File - wt => write Tag as => add Segment sf => save File - ct => copy io Tag es => edit Segment xf => xor File - tc => copy oi Tag ed => edit Data - di => dump inTag rs => remove Segment - do => dump outTag cc => check Segment-CRC - ck => check KGH - tk => toggle KGH-Flag - q => quit xc => get KGH-Str h => this Help + Data I/O Segment Manipulation Token-Data + ----------------- -------------------- ----------------- + rt => read Tag as => add Segment mt => make Token + wt => write Tag es => edit Segment Header et => edit Token data + ed => edit Segment Data tk => toggle KGH-Flag + File I/O rs => remove Segment + ----------------- cc => check Segment-CRC + lf => load File ck => check KGH + sf => save File ds => dump Segments + xf => xor to File + + + (partially) known Segments Virtual Tags Script Output + --------------------------- ------------------------------- ------------------------ + dlc => dump Legic-Cash ct => copy mainTag to backupTag tac => toggle ansicolors + elc => edit Legic-Cash tc => copy backupTag to mainTag + d3p => dump 3rd-Party-Cash tt => switch mainTag & backupTag + e3p => edit 3rd-Party-Cash di => dump mainTag + do => dump backupTag + + - Data I/O 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) file from the local Filesystem into the 'virtual inTag' + sf: 'save file' - saves the 'virtual inTag' to the local Filesystem (xored with Tag-MCC) + xf: 'xor file' - saves the 'virtual inTag' to the local Filesystem (xored with choosen MCC - use '00' for plain values) + ct: 'copy tag' - copy the 'virtual Tag' to a second 'virtual TAG' - not usefull yet, but inernally needed tc: 'copy tag' - copy the 'second virtual Tag' to 'virtual TAG' - not usefull yet, but inernally needed - di: 'dump inTag' - shows the current content of the 'virtual Tag' - do: 'dump outTag' - shows the current content of the 'virtual outTag' - - Segment Manipulation - (all manipulations happens only in the 'virtual inTAG' - they need to be written with 'wt' to take effect) + 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 (Stamp & Payload) + 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' - toglle 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 - - Input/Output - lf: 'load file' - load a (xored) file from the local Filesystem into the 'virtual inTag' - sf: 'save file' - saves the 'virtual inTag' to the local Filesystem (xored with Tag-MCC) - xf: 'xor file' - saves the 'virtual inTag' to the local Filesystem (xored with choosen MCC - use '00' for plain values) +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" ---- requirements -local utils = require('utils') -local getopt = require('getopt') +--- +-- requirements +local utils = require('utils') +local getopt = require('getopt') +local ansicolors = require('ansicolors') ---- global variables / defines +--- +-- global variables / defines local bxor = bit32.bxor local bbit = bit32.extract local input = utils.input local confirm = utils.confirm ---- Error-Handling & Helper +--- +-- init ansicolor-values & ansicolors switch +local colored_output = true +local acoff = "" +local acgreen= "" +local accyan = "" +local acred = "" +local acyellow = "" +local acblue = "" +local acmagenta = "" + +--- 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 + else + -- 'no color' + acgreen = "" + accyan = "" + acred = "" + acyellow= "" + acblue = "" + acmagenta= "" + acoff = "" + end +end + +--- +-- 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("ERROR: ",err) + print(acred.."ERROR: "..acoff ,err) return nil, err end @@ -85,8 +232,8 @@ end -- Usage help function help() print(desc) - print("Example usage") - print(example) + print("Version: "..version) + print("Example usage: "..example) end --- @@ -96,17 +243,27 @@ function istable(t) end --- --- put certain bytes into a new table -function bytesToTable(bytes, bstart, bend) - local t={} - for i=0, (bend-bstart) do - t[i]=bytes[bstart+i] - end - return t +-- 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 byte (if addr >= 0x22 - start counting from 1 => 23) +-- xor single byte function xorme(hex, xor, index) if ( index >= 23 ) then return ('%02x'):format(bxor( tonumber(hex,16) , tonumber(xor,16) )) @@ -144,80 +301,37 @@ function file_check(file_name) end --- --- read file into virtual-tag -function readFile(filename) - local bytes = {} - local tag = {} - if (file_check(filename)==false) then - return oops("input file: "..filename.." not found") - else - bytes = getInputBytes(filename) - if (bytes == false) then return oops('couldnt get input bytes') - else - -- make plain bytes - bytes = xorBytes(bytes,bytes[5]) - -- create Tag for plain bytes - tag=createTagTable() - -- load plain bytes to tag-table - tag=bytesToTag(bytes, tag) +-- 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 - end - return tag + return fields end --- --- write bytes to file --- write to file -function writeFile(bytes, filename) - if (filename~='MylegicClone.hex') then - if (file_check(filename)) then - local answer = confirm("\nthe output-file "..filename.." alredy exists!\nthis will delete the previous content!\ncontinue?") - if (answer==false) then return print("user abort") end - end +-- put a string into a bytes-table +function str2bytes(s) + local res={} + if (string.len(s)%2~=0) then return print("stamp should be a even hexstring e.g.: deadbeef or 0badc0de") end + for i=1, string.len(s), 2 do + table.insert(res, string.sub(s,i,(i+1))) end - local line - local bcnt=0 - local fho,err = io.open(filename, "w") - if err then oops("OOps ... faild to open output-file ".. filename) end - bytes=xorBytes(bytes, bytes[5]) - for i = 1, #bytes do - if (bcnt == 0) then - line=bytes[i] - elseif (bcnt <= 7) then - line=line.." "..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 ".. #bytes .." bytes to " .. filename) - return true + return res end ---- --- read from pm3 into virtual-tag -function readFromPM3() - local tag, bytes, infile - --if (confirm("is the Tag placed onto the Proxmak3 and ready for reading?")) then - --print("reading Tag ...") - --infile=input("input a name for the temp-file:", "legic.temp") - --if (file_check(infile)) then - -- local answer = confirm("\nthe output-file "..infile.." alredy exists!\nthis will delete the previous content!\ncontinue?") - -- if (answer==false) then return print("user abort") end - --end - infile="legic.temp" - core.console("hf legic reader") - core.console("hf legic save "..infile) - --print("read temp-file into virtual Tag ...") - tag=readFile(infile) - return tag - --else return print("user abort"); end +--- +-- put certain bytes into a new table +function bytesToTable(bytes, bstart, bend) + local t={} + for i=0, (bend-bstart) do + t[i]=bytes[bstart+i] + end + return t end --- @@ -235,61 +349,12 @@ function getInputBytes(infile) end end fhi:close() + if (bytes[7]=='00') then return false end print(#bytes .. " bytes from "..infile.." loaded") return bytes end --- --- read Tag-Table in bytes-table -function tagToBytes(tag) - if (istable(tag)) then - 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 - for i=0, #tag.Bck do - table.insert(bytes, tag.Bck[i]) - 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 - print(#bytes.." bytes of Tag dumped") - return bytes - end - return oops("tag is no table in tagToBytes ("..type(tag)..")") -end - ---- virtual TAG functions -- create tag-table helper function createTagTable() local t={ @@ -334,104 +399,878 @@ function bytesToTag(bytes, tag) 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("Tag-Type: ".. tag.Type) + print(acgreen.."Tag-Type: ".. tag.Type..acoff) if (tag.Type=="SAM" and #bytes>23) then tag=segmentsToTag(bytes, tag) - print((#tag.SEG+1).." Segment(s) found") + 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(#bytes.." bytes for Tag processed") + print(accyan..#bytes.." bytes for Tag processed"..acoff) return tag end return oops("tag is no table in: bytesToTag ("..type(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 + --- --- dump tag-system area -function dumpCDF(tag) - local res="" - local i=0 - local raw="" +-- read Tag-Table in bytes-table +function tagToBytes(tag) if (istable(tag)) then - res = res.."MCD: "..tag.MCD..", MSN: "..tag.MSN0.." "..tag.MSN1.." "..tag.MSN2..", MCC: "..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..", SSC="..tag.SSC.."\n" - - -- credential - if (tag.raw..tag.SSC=="9fff") 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 - else - res = res .."Master-Token Area\n" - for i=0, (#tag.data) do - res = res..tag.data[i].." " - end - for i=0, (#tag.Bck) do - res = res..tag.Bck[i].." " - end - for i=0, (#tag.MTC-1) do - res = res..tag.MTC[i].." " - end - res = res .. " MT-CRC: "..tag.MTC[1] + 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 - return res - else print("no valid Tag in dumpCDF") 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") then - if (istable(tag.SEG[i].raw)) then - for k,v in pairs(tag.SEG[i].raw) do - raw=raw..v.." " + -- backup data + if(istable(tag.Bck)) then + for i=0, #tag.Bck do + table.insert(bytes, tag.Bck[i]) end end - - -- segment header - res = res.."Segment "..("%02d"):format(tag.SEG[i].index)..": " - 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)..", " + -- 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 + return oops("tag is no table in tagToBytes ("..type(tag)..")") +end + +--- PM3 I/O --- +--- +-- read from pm3 into virtual-tag +function readFromPM3() + local tag, bytes, infile + infile="legic.temp" + core.console("hf legic reader") + core.console("hf legic save "..infile) + tag=readFile(infile) + return tag +end + +--- +-- write virtual Tag to real Tag +function writeToTag(tag) + local bytes + local filename='MylegicClone.hex' + local taglen=22 + if(utils.confirm(acred.."\nplace the (empty) Tag onto the PM3\nand confirm writing to this Tag: "..acoff) == false) then + return + 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+5 + 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 + print("write temp-file '"..filename.."'") + print(accyan) + writeFile(bytes, filename) + --writeToTag(bytes, taglen, 'MylegicClone.hex') + print(acoff) + end + end + -- write data to file + if (taglen > 0) then + WriteBytes = utils.input(acyellow.."enter number of bytes to write?"..acoff, taglen) + -- load file into pm3-buffer + if (type(filename)~="string") then filename=input(acyellow.."filename to load to pm3-buffer?"..acoff,"legic.temp") end + cmd = 'hf legic load '..filename + core.console(cmd) + -- write pm3-buffer to Tag + for i=0, WriteBytes do + if ( i<5 or i>6) then + cmd = ('hf legic write 0x%02x 0x01'):format(i) + core.console(cmd) + --print(cmd) + elseif (i == 6) then + -- write DCF in reverse order (requires 'mosci-patch') + cmd = 'hf legic write 0x05 0x02' + print(acgreen..cmd..acoff) + core.console(cmd) + --print(cmd) + else + print(acgreen.."skip byte 0x05 - will be written next step"..acoff) + end + utils.Sleep(0.2) + end + end +end + +--- File I/O --- +--- +-- read file into virtual-tag +function readFile(filename) + print(accyan) + local bytes = {} + local tag = {} + if (file_check(filename)==false) then + return oops("input file: "..filename.." not found") + else + bytes = getInputBytes(filename) + if (bytes == false) then return oops('couldnt get input bytes') + else + -- 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) + end + end + return tag +end + +--- +-- write bytes to file +function writeFile(bytes, filename) + if (filename~='MylegicClone.hex') then + if (file_check(filename)) then + local answer = confirm("\nthe output-file "..filename.." alredy exists!\nthis will delete the previous content!\ncontinue?") + if (answer==false) then return print("user abort") end + end + end + local line + local bcnt=0 + local fho,err = io.open(filename, "w") + if err then oops("OOps ... faild to open output-file ".. filename) end + bytes=xorBytes(bytes, bytes[5]) + for i = 1, #bytes do + if (bcnt == 0) then + line=bytes[i] + elseif (bcnt <= 7) then + line=line.." "..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 ".. #bytes .." bytes to " .. filename) + return true +end + +--- Map related --- +--- +-- make tagMap +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 +function saveTagMap(map, filename) + if (string.len(filename)>0) then + if (file_check(filename)) then + local answer = confirm("\nthe output-file "..filename.." alredy exists!\nthis will delete the previous content!\ncontinue?") + if (answer==false) then return print("user abort") end + end + end + + local line + local fho,err = io.open(filename, "w") + if err then oops("OOps ... faild to open output-file ".. filename) 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 +function toggleHighlight(tbl) + if (tbl['highlight']) then tbl['highlight']=false + else tbl['highlight']=true end + return tbl +end + +--- +-- return table od seqence-string +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 +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 + if (file_check(filename)==false) then + return oops("input file: "..filename.." not found") + else + local fhi,err = io.open(filename) + 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)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="" + for i=((string.len(v['name']))/10), 2 do + temp=temp.."\t" + 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 = [[ + Data: dm = show dr = dump raw +Mappings: im = insert am = add rm = remove + CRC8: ac8 = add sc8 = show rc8 = remove + : q = exit h = 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("no valid Tag in dumpCDF") 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 "valid" or "error")..")" + 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 (Stamp):\n" - for i2=dp, tag.SEG[i].WRC-1 do - res = res..tag.SEG[i].data[dp].." " + 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 (Stamp):\n" - for i2=dp, tag.SEG[i].WRP-tag.SEG[i].WRC-1 do - res = res..tag.SEG[i].data[dp].." " + 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 @@ -444,7 +1283,7 @@ function dumpSegment(tag, index) dp=dp+1 end if (tag.SEG[i].kgh) then - res = res..tag.SEG[i].data[dp].." (KGH: "..(checkKghCrc(tag, i) and "valid" or "error")..")" + 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 @@ -455,42 +1294,235 @@ function dumpSegment(tag, index) end --- --- check all segmnet-crc -function checkAllSegCrc(tag) - for i=0, #tag.SEG do - crc=calcSegmentCrc(tag, i) - tag.SEG[i].crc=crc +-- 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 (string.len(header)==0) then return res + else return (header.." #"..(tend-tstart+1).."\n"..res) end end --- --- check all segmnet-crc -function checkAllKghCrc(tag) - 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 +-- 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])) then + 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=currency[tag.SEG[x].data[8]..tag.SEG[x].data[9]] + -- 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 +end + +--- +-- raw 3rd-party +function print3rdPartyCash1(tag, x) + if (istable(tag.SEG[x])) then + 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 end +--- Token related -- --- --- dump virtual Tag-Data -function dumpTag(tag) - local i, i2 - local res - local dp=0 - local raw="" - -- sytstem area - res ="\nCDF: System Area" - res= res.."\n"..dumpCDF(tag) - -- segments (user area) - if(istable(tag.SEG[0])) then - res = res.."\n\nADF: User Area" - for i=0, #tag.SEG do - res=res.."\n"..dumpSegment(tag, i).."\n" +-- 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) + local res + wrp=("%02x"):format(tonumber(wrp, 10)) + rd=tonumber(rd, 16) + res=("%02x"):format(tonumber(wrp, 16)+tonumber(wrc.."0", 16)+((rd>0) and tonumber("8"..(rd-1), 16) or 0)) return res end @@ -513,38 +1545,15 @@ function getTokenType(DCFl) 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),4.4)..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(bbit("0x"..("%03x"):format(seg.WRC),4,3)..bbit("0x"..("%02x"):format(seg.RD*128),0,8)) - -- 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("Data-Length has being reduced: removing ".. #seg.data-(seg.len-5) .." bytes from Payload"); - 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("Data-Length has being extended: adding "..(seg.len-5)-#seg.data.." bytes to Payload"); - for i=#seg.data, (seg.len-5)-1 do - table.insert(seg.data, '00') - end +-- clear beackup-area of a virtual tag +function clearBackupArea(tag) + for i=1, #tag.Bck do + tag.Bck[i]='00' end - return seg + return tag end +--- Segment related -- --- -- get segmemnt-data from byte-table function getSegmentData(bytes, start, index) @@ -588,128 +1597,72 @@ function getSegmentData(bytes, start, index) for i=0, (segment.len-5) do segment.data[i]=bytes[start+5+i] end - return segment - else return false; - end -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 - ---- CRC calculation and validation --- build kghCrc credentials -function kghCrcCredentials(tag, segid) - 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 - ---- --- 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("'Kaba Group header' detected but no Segment-Data found") end -end - ---- --- calcuate kghCRC for a given segment -function calcKghCrc(tag, segid) - -- check if a 'Kaber Group Header' exists - local i - local data=kghCrcCredentials(tag, segid) - return ("%02x"):format(utils.Crc8Legic(data)) -end - ---- --- build segmentCrc credentials -function segmentCrcCredentials(tag, segid) - 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 -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 + return segment + else return false; + end end --- --- calculate segmentCRC for a given segment -function calcSegmentCrc(tag, segid) - -- check if a 'Kaber Group Header' exists - local data=segmentCrcCredentials(tag, segid) - return ("%02x"):format(utils.Crc8Legic(data)) +-- 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 ---- create master-token - --- --- write virtual Tag to real Tag --- write clone-data to tag -function writeToTag(plainBytes, taglen, filename) - local bytes - if(utils.confirm("\nplace your empty tag onto the PM3 to read & write\n") == false) then - return +-- 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 - - -- write data to file - if (taglen > 0) then - WriteBytes = utils.input("enter number of bytes to write?", taglen) - - -- load file into pm3-buffer - if (type(filename)~="string") then filename=input("filename to load to pm3-buffer?","legic.temp") end - cmd = 'hf legic load '..filename - core.console(cmd) - - -- write pm3-buffer to Tag - for i=0, WriteBytes do - if ( i<5 or i>6) then - cmd = ('hf legic write 0x%02x 0x01'):format(i) - core.console(cmd) - --print(cmd) - elseif (i == 6) then - -- write DCF in reverse order (requires 'mosci-patch') - cmd = 'hf legic write 0x05 0x02' - core.console(cmd) - --print(cmd) - else - print("skipping byte 0x05 - will be written next step") - end - utils.Sleep(0.2) - end - end + return seg end --- @@ -720,7 +1673,7 @@ function editSegment(tag, index) 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(k..": ", v),10) + 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") @@ -734,10 +1687,13 @@ end --- -- edit Segment Data function editSegmentData(data) + local lc=check4LegicCash(data) + io.write("\n") if (istable(data)) then for i=0, #data-1 do - data[i]=input("Data"..i..": ", data[i]) + data[i]=input(accyan.."Data"..i..acoff..": ", data[i]) end + if (lc) then data=fixLegicCash(data) end return data else print("no Segment-Data found") @@ -763,7 +1719,7 @@ end -- helper to selecting a segment function selectSegment(tag) local sel - if (istable(tag)) then + if (istable(tag.SEG[0])) then print("availabe Segments:\n"..segmentList(tag)) sel=input("select Segment: ", '00') sel=tonumber(sel,10) @@ -774,7 +1730,7 @@ function selectSegment(tag) return false end end - + --- -- add segment function addSegment(tag) @@ -807,88 +1763,521 @@ function addSegment(tag) 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 thier 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) + 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) - local i - if (type(index)=="string") then index=tonumber(index,10) end - if (index > 0) then - table.remove(tag.SEG, 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) + 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) +end + +--- +-- chack for signature of a 'Legic-Cash-Segment' +function check4LegicCash(data) + 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.Crc16(dumpTable(data, "", 0, 12))) == data[13]..data[14]) then + if (("%04x"):format(utils.Crc16(dumpTable(data, "", 15, 20))) == data[21]..data[22]) then + if (("%04x"):format(utils.Crc16(dumpTable(data, "", 23, 29))) == 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) + 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.Crc16(dumpTable(data, "", 0, 12))) + crc2=("%04x"):format(utils.Crc16(dumpTable(data, "", 15, 20))) + crc3=("%04x"):format(utils.Crc16(dumpTable(data, "", 23, 29))) + -- 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 segmnet-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 - tag.SEG[i].index=("%02d"):format(i) + crc=calcKghCrc(tag, i) + if (tag.SEG[i].kgh) then + tag.SEG[i].data[#tag.SEG[i].data-1]=crc + end end end - if(istable(tag.SEG[#tag.SEG])) then tag.SEG[#tag.SEG].last=1 end - return tag +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 File I/O ------------------- -------------------- --------------- - rt => read Tag ds => dump Segments lf => load File - wt => write Tag as => add Segment sf => save File - ct => copy io Tag es => edit Segment xf => xor File - tc => copy oi Tag ed => edit Data - di => dump inTag rs => remove Segment - do => dump outTag cc => check Segment-CRC - ck => check KGH - tk => toggle KGH-Flag - q => quit xc => get KGH-Str h => this Help - ]] + + Data I/O Segment Manipulation Token-Data + ----------------- -------------------- --------------------- + rt => read Tag as => add Segment mt => make Token + wt => write Tag es => edit Segment Header et => edit Token data + ed => edit Segment Data tk => toggle KGH-Flag + File I/O rs => remove Segment + ----------------- cc => check Segment-CRC + lf => load File ck => check KGH + sf => save File ds => dump Segments + xf => xor to File + + + Virtual Tags tagMap (partial) known Segments + -------------------------------- --------------------- --------------------------- + ct => copy mainTag to backupTag mm => make (new) Map dlc => dump Legic-Cash + tc => copy backupTag to mainTag em => edit Map submenu elc => edit Legic-Cash + tt => switch mainTag & backupTag lm => load map from file d3p => dump 3rd-Party-Cash + di => dump mainTag sm => save map to file e3p => edit 3rd-Party-Cash + do => dump backupTag + + h => this help q => quit + ]] return t end --- -- modify Tag (interactive) function modifyMode() - local i, outTAG, inTAG, outfile, infile, sel, segment, bytes, outbytes + local i, backupTAG, outTAG, inTAG, outfile, infile, sel, segment, bytes, outbytes, tagMap + actions = { + --- + -- helptext ["h"] = function(x) - print(modifyHelp().."\n".."tags im Memory:"..(istable(inTAG) and " inTAG" or "")..(istable(outTAG) and " outTAG" or "")) + print(" Version: "..version); + 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 "")) end, - ["rt"] = function(x) inTAG=readFromPM3(); actions['di']('') 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) - if(istable(inTAG)) then - local taglen=22 - for i=0, #inTAG.SEG do - taglen=taglen+inTAG.SEG[i].len+5 - end - -- read new tag (output tag) - outTAG=readFromPM3() - outbytes=tagToBytes(outTAG) - -- copy 'inputbuffer' to 'outputbuffer' - inTAG.MCD = outbytes[1] - inTAG.MSN0 = outbytes[2] - inTAG.MSN1 = outbytes[3] - inTAG.MSN2 = outbytes[4] - inTAG.MCC = outbytes[5] - -- recheck all segments-crc/kghcrc - checkAllSegCrc(inTAG) - checkAllKghCrc(inTAG) - --get bytes from ready outTAG - bytes=tagToBytes(inTAG) - if (bytes) then - writeFile(bytes, 'MylegicClone.hex') - writeToTag(bytes, taglen, 'MylegicClone.hex') - actions['rt']('') - end - end + writeToTag(inTAG) end, + --- + -- copy mainTAG to backupTAG ["ct"] = function(x) - print("copy virtual input-TAG to output-TAG") - outTAG=inTAG + print(accyan.."copy mainTAG to backupTAG"..acoff) + backupTAG=deepCopy(inTAG) end, + --- + -- copy backupTAG to mainTAG ["tc"] = function(x) - print("copy virtual output-TAG to input-TAG") - inTAG=outTAG + 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) - filename=input("enter filename: ", "legic.temp") + + if (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 + if (file_check(filename..".map")) then + if(confirm(accyan.."Mapping-File for "..acoff..filename..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:", "legic.temp") @@ -899,6 +2288,8 @@ function modifyMode() 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:", "legic.temp") @@ -911,82 +2302,308 @@ function modifyMode() end end end, - ["di"] = function(x) if (istable(inTAG)) then print("\n"..dumpTag(inTAG).."\n") end end, - ["do"] = function(x) if (istable(outTAG)) then print("\n"..dumpTag(outTAG).."\n") 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)) 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) - sel=selectSegment(inTAG) - if (sel) then print("\n"..(dumpSegment(inTAG, sel) or "no Segments available").."\n") end + 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) - sel=selectSegment(inTAG) + 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)) then + if(istable(inTAG.SEG[0])) then inTAG=editSegment(inTAG, sel) inTAG.SEG[sel]=regenSegmentHeader(inTAG.SEG[sel]) - else print("no Segments in Tag") end + 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("unsegmented Tag!") + else print(accyan.."Master-Token / unsegmented Tag!"..acoff) end end, + --- + -- remove segment ["rs"] = function(x) - if (istable(inTAG)) then - sel=selectSegment(inTAG) + 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) - sel=selectSegment(inTAG) - if (sel) then + 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 inTAG.SEG[sel].data=editSegmentData(inTAG.SEG[sel].data) end end, - ["ts"] = function(x) - sel=selectSegment(inTAG) + --- + -- 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, - ["tk"] = function(x) - sel=selectSegment(inTAG) + --- + -- 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 + inTAG.SEG[x].data=fixLegicCash(inTAG.SEG[x].data) + end, + --- + -- edit legic-cash values fixLegicCash(data) + ["elc"] = function(x) + x=autoSelectSegment(inTAG, "legiccash") + inTAG.SEG[x].data=editLegicCash(inTAG.SEG[x].data) + 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)) + -- or try to find match + else 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)) + -- or try to find match + else 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)) + -- or try to find match + else 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)) + -- or try to find match + else 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, - ["k"] = function(x) - print(("%02x"):format(utils.Crc8Legic(x))) + --- + -- 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("lenght: "..#stamp) end, - ["xc"] = function(x) - --get credential-string for kgh-crc on certain segment - --usage: xc - print("k "..kghCrcCredentials(inTAG, x)) + --- + -- 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, - ["cc"] = function(x) if (istable(inTAG)) then checkAllSegCrc(inTAG) end end, - ["ck"] = function(x) if (istable(inTAG)) then checkAllKghCrc(inTAG) end end, - ["q"] = function(x) end, } - print("modify-modus! enter 'h' for help or 'q' to quit") repeat + -- defualt message / prompt ic=input("Legic command? ('h' for help - 'q' for quit)", "h") - -- command actions - if (type(actions[string.lower(string.sub(ic,0,1))])=='function') then - actions[string.lower(string.sub(ic,0,1))](string.sub(ic,3)) + -- 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)) - else actions['h']('') end + 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 +--- +-- 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, outTAG, outfile, interactive, crc, ofs, cfs, dfs + local inTAG, backupTAG, outTAG, outfile, interactive, crc, ofs, cfs, dfs -- just a spacer for better readability print() --- parse arguments @@ -1015,25 +2632,28 @@ function main(args) print(dumpTag(inTAG)) end bytes=tagToBytes(inTAG) - -- xor with given crc if (cfs) then + -- xor willl be done in function writeFile + -- with the value of byte[5] bytes[5]=crc end -- write to outfile if (bytes) then writeFile(bytes, outfile) - -- reed new content into virtual tag - + --- 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(outTAG)) + print(dumpTag(inTAG)) end end end end ---- start +--- +-- script start main(args) \ No newline at end of file