FIX: `lf search` - em410x demod was a bit greedy.

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

diff --git a/client/scripts/mfkeys.lua b/client/scripts/mfkeys.lua
index 9471ad4bf3f8fb0283635a57427e518948ee5346..804b6115c39f444c617181aa029714c3a35b598b 100644 (file)
--- a/client/scripts/mfkeys.lua
+++ b/client/scripts/mfkeys.lua
@@ -14,13 +14,32 @@ local cmds = require('commands')
 local keys = require('mf_default_keys')
 -- Ability to read what card is there
 local reader = require('read14a')
+local getopt = require('getopt')
 
+local OR = bit32.bor
+local LSHIFT = bit32.lshift
 
-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)
+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
+--- 
+-- 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 = 
@@ -81,7 +100,6 @@ local function checkCommand(command)
        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
@@ -91,12 +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)
-               --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, 
-                                                               arg1 = blockNo, 
-                                                               arg2 = keyType, 
+                                                               arg1 =  OR(blockNo, LSHIFT(keyType,8) ),
+                                                               arg2 = 0, 
                                                                arg3 = n, 
                                                                data = data}
                local status = checkCommand(command)
@@ -108,19 +124,19 @@ function checkBlock(blockNo, keys, keyType)
 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,_
 
-       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(_)
-
-               print(("| %3d  | %3d |%s|%s|"):format(sector, blockNo, keyA, keyB ))
+               print(("|%03d|  %s  | 1 |  %s  | 1 |"):format(sector, keyA, keyB ))
        end
-       print("|--------------------------------------|")
+       print("|---|----------------|---|----------------|---|")
 
 end
 -- A little helper to place an item first in the list
@@ -164,18 +180,20 @@ local function dumptofile(results)
        end
 end
 
-
 local function main( args)
 
-       print(desc);
-
+       -- 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))
 
+       print(("Found a %s tag"):format(result.name))
 
        core.clearCommandBuffer()
        local blockNo