CHG: @marshmellow42 's XL size, and em4x05 timmings.

[proxmark3-svn] / client / scripts / mfkeys.lua

diff --git a/client/scripts/mfkeys.lua b/client/scripts/mfkeys.lua
index 135108f39366b8fb6738fc70aab1e585ca3e0bb3..804b6115c39f444c617181aa029714c3a35b598b 100644 (file)
--- a/client/scripts/mfkeys.lua
+++ b/client/scripts/mfkeys.lua
@@ -7,16 +7,76 @@
        the license.
        
        Copyright (C) 2013 m h swende <martin at swende.se>
        the license.
        
        Copyright (C) 2013 m h swende <martin at swende.se>

-]]
+--]]

 -- Loads the commands-library
 local cmds = require('commands')
 -- Load the default keys
 local keys = require('mf_default_keys')
 -- Loads the commands-library
 local cmds = require('commands')
 -- Load the default keys
 local keys = require('mf_default_keys')

-local desc = 
-("This script implements check keys. It utilises a large list of default keys (currently %d keys).\
-If you want to add more, just put them inside mf_default_keys.lua. "):format(#keys)
+-- Ability to read what card is there
+local reader = require('read14a')
+local getopt = require('getopt')
+
+local OR = bit32.bor
+local LSHIFT = bit32.lshift
+
+example =[[
+        script run mfkeys
+]]
+author = "Iceman"
+usage = "script run mfkeys"
+desc = ("This script implements Mifare check keys. It utilises a large list of default keys (currently %d keys).\
+If you want to add more, just put them inside /lualibs/mf_default_keys.lua\n"):format(#keys) ..
+[[
+
+Arguments:
+       -h             : this help
+]]

 
 local TIMEOUT = 10000 -- 10 seconds
 
 local TIMEOUT = 10000 -- 10 seconds

+--- 
+-- Usage help
+function help()
+       print(desc)
+       print("Example usage")
+       print(example)
+end
+       
+--[[This may be moved to a separate library at some point]]
+local utils = 
+{
+       --- 
+       -- Asks the user for Yes or No
+       confirm = function(message, ...)
+               local answer
+               message = message .. " [y]/[n] ?"
+               repeat
+                       io.write(message)
+                       io.flush()
+                       answer=io.read()
+                       if answer == 'Y' or answer == "y" then
+                               return true
+                       elseif answer == 'N' or answer == 'n' then 
+                               return false
+                       end
+               until false
+       end,
+       ---
+       -- Asks the user for input
+       input = function (message , default)
+               local answer
+               if default ~= nil then
+                       message = message .. " (default: ".. default.. " )"
+               end
+               message = message .." \n > "
+               io.write(message)
+               io.flush()
+               answer=io.read()
+               if answer == '' then answer = default end
+
+               return answer
+       end,
+}
+

 
 local function checkCommand(command)
 
 
 local function checkCommand(command)
 


@@ -40,7 +100,6 @@ local function checkCommand(command)
        end
 end
 
        end
 end
 

-

 function checkBlock(blockNo, keys, keyType)
        -- The command data is only 512 bytes, each key is 6 bytes, meaning that we can send max 85 keys in one go. 
        -- If there's more, we need to split it up
 function checkBlock(blockNo, keys, keyType)
        -- The command data is only 512 bytes, each key is 6 bytes, meaning that we can send max 85 keys in one go. 
        -- If there's more, we need to split it up


@@ -50,12 +109,10 @@ function checkBlock(blockNo, keys, keyType)
                local n,data = remaining, nil
                if remaining > 85 then n = 85 end
                local data = table.concat(keys,"",start,n)
                local n,data = remaining, nil
                if remaining > 85 then n = 85 end
                local data = table.concat(keys,"",start,n)

-               --print("data",data)
-               --print("data len", #data)

                print(("Testing block %d, keytype %d, with %d keys"):format(blockNo, keyType, n))
                local command = Command:new{cmd = cmds.CMD_MIFARE_CHKKEYS, 
                print(("Testing block %d, keytype %d, with %d keys"):format(blockNo, keyType, n))
                local command = Command:new{cmd = cmds.CMD_MIFARE_CHKKEYS, 

-                                                               arg1 = blockNo, 
-                                                               arg2 = keyType, 
+                                                               arg1 =  OR(blockNo, LSHIFT(keyType,8) ),
+                                                               arg2 = 0, 

                                                                arg3 = n, 
                                                                data = data}
                local status = checkCommand(command)
                                                                arg3 = n, 
                                                                data = data}
                local status = checkCommand(command)


@@ -67,19 +124,19 @@ function checkBlock(blockNo, keys, keyType)
 end
 
 -- A function to display the results
 end
 
 -- A function to display the results

+-- TODO: iceman 2016,  still screws up output when a key is not found.

 local function displayresults(results)
        local sector, blockNo, keyA, keyB,_
 
 local function displayresults(results)
        local sector, blockNo, keyA, keyB,_
 

-       print("________________________________________")
-       print("|Sector|Block|     A      |      B     |")
-       print("|--------------------------------------|")
+       print("|---|----------------|---|----------------|---|")
+       print("|sec|key A           |res|key B           |res|")
+       print("|---|----------------|---|----------------|---|")

 
        for sector,_ in pairs(results) do
                blockNo, keyA, keyB = unpack(_)
 
        for sector,_ in pairs(results) do
                blockNo, keyA, keyB = unpack(_)

-
-               print(("| %3d  | %3d |%s|%s|"):format(sector, blockNo, keyA, keyB ))
+               print(("|%03d|  %s  | 1 |  %s  | 1 |"):format(sector, keyA, keyB ))

        end
        end

-       print("|--------------------------------------|")
+       print("|---|----------------|---|----------------|---|")

 
 end
 -- A little helper to place an item first in the list
 
 end
 -- A little helper to place an item first in the list


@@ -98,20 +155,73 @@ local function placeFirst(akey, list)
        end
        return result
 end
        end
        return result
 end

+local function dumptofile(results)
+       local sector, blockNo, keyA, keyB,_

 
 

-local function main()
+       if utils.confirm("Do you wish to save the keys to dumpfile?") then 
+               local destination = utils.input("Select a filename to store to", "dumpkeys.bin")
+               local file = io.open(destination, "w")
+               if file == nil then 
+                       print("Could not write to file ", destination)
+                       return
+               end

 
 

-       print(desc);
+               local key_a = ""
+               local key_b = ""
+               
+               for sector,_ in pairs(results) do
+                       blockNo, keyA, keyB = unpack(_)
+                       key_a = key_a .. bin.pack("H",keyA);
+                       key_b = key_b .. bin.pack("H",keyB);
+               end
+               file:write(key_a)
+               file:write(key_b)
+               file:close()
+       end
+end
+
+local function main( args)
+
+       -- Arguments for the script
+       for o, a in getopt.getopt(args, 'h') do
+               if o == "h" then return help() end                      
+       end
+       
+       result, err = reader.read1443a()
+       if not result then
+               print(err)
+               return
+       end
+
+       print(("Found a %s tag"):format(result.name))

 
        core.clearCommandBuffer()
        local blockNo
        local keyType = 0 -- A=0, B=1
 
        core.clearCommandBuffer()
        local blockNo
        local keyType = 0 -- A=0, B=1

-       local result = {}
-       for sector=1,40,1 do
+       local numSectors = 16 
+
+       if 0x18 == result.sak then --NXP MIFARE Classic 4k | Plus 4k
+               -- IFARE Classic 4K offers 4096 bytes split into forty sectors, 
+               -- of which 32 are same size as in the 1K with eight more that are quadruple size sectors. 
+               numSectors = 40
+       elseif 0x08 == result.sak then -- NXP MIFARE CLASSIC 1k | Plus 2k
+               -- 1K offers 1024 bytes of data storage, split into 16 sector
+               numSectors = 16
+       elseif 0x09 == result.sak then -- NXP MIFARE Mini 0.3k
+               -- MIFARE Classic mini offers 320 bytes split into five sectors.
+               numSectors = 5
+       elseif  0x10 == result.sak then-- "NXP MIFARE Plus 2k"
+               numSectors = 32
+       else
+               print("I don't know how many sectors there are on this type of card, defaulting to 16")
+       end
+
+       result = {}
+       for sector=1,numSectors,1 do

 
                --[[
 
                --[[

-               The mifare Classic 1k card has 16 sectors of 4 data blocks each. The
-               first 32 sectors of a mifare Classic 4k card consists of 4 data blocks and the remaining
+               The mifare Classic 1k card has 16 sectors of 4 data blocks each. 
+               The first 32 sectors of a mifare Classic 4k card consists of 4 data blocks and the remaining

                8 sectors consist of 16 data blocks. 
                --]]
                local blockNo = sector * 4 -1 
                8 sectors consist of 16 data blocks. 
                --]]
                local blockNo = sector * 4 -1 


@@ -137,7 +247,8 @@ local function main()
                end
        end
        displayresults(result)
                end
        end
        displayresults(result)

+       dumptofile(result)

 end
 
 end
 

-main()
+main( args)