Code improved for less memory

[proxmark3-svn] / client / lualibs / hf_reader.lua

diff --git a/client/lualibs/hf_reader.lua b/client/lualibs/hf_reader.lua
index dc2106880f9f664f26785e3d13ade007ab6ac60a..cce6d5bb5119fcee6552d6a425faf89c096e8bb9 100644 (file)
--- a/client/lualibs/hf_reader.lua
+++ b/client/lualibs/hf_reader.lua
@@ -1,10 +1,12 @@
-[[
+--[[

 THIS IS WORK IN PROGREESS, very much not finished. 
 
 This library utilises other libraries under the hood, but can be used as a generic reader for 13.56MHz tags. 
 ]]
 
 local reader14443A = require('read14a')
 THIS IS WORK IN PROGREESS, very much not finished. 
 
 This library utilises other libraries under the hood, but can be used as a generic reader for 13.56MHz tags. 
 ]]
 
 local reader14443A = require('read14a')

+local cmds = require('commands')
+local TIMEOUT = 1000

 
 local function sendToDevice(command, ignoreresponse)
        core.clearCommandBuffer()
 
 local function sendToDevice(command, ignoreresponse)
        core.clearCommandBuffer()


@@ -14,7 +16,6 @@ local function sendToDevice(command, ignoreresponse)
                return nil, err
        end
        if ignoreresponse then return nil,nil end
                return nil, err
        end
        if ignoreresponse then return nil,nil end

-

        local response = core.WaitForResponseTimeout(cmds.CMD_ACK,TIMEOUT)
        return response,nil
 end
        local response = core.WaitForResponseTimeout(cmds.CMD_ACK,TIMEOUT)
        return response,nil
 end


@@ -36,17 +37,17 @@ local reader14443B = {
 -------------------------------------------------------
 
 local function errorString15693(number)
 -------------------------------------------------------
 
 local function errorString15693(number)

-       local errors = {
-               0x01 :  "The command is not supported",
-               0x02 :  "The command is not recognised",
-               0x03 :  "The option is not supported.",
-               0x0f :  "Unknown error.",
-               0x10 :  "The specified block is not available (doesn’t exist).",
-               0x11 :  "The specified block is already -locked and thus cannot be locked again",
-               0x12 :  "The specified block is locked and its content cannot be changed.",
-               0x13 :  "The specified block was not successfully programmed.",
-               0x14 :  "The specified block was not successfully locked.",
-       }
+       local errors = {}
+       errors[0x01] =  "The command is not supported"
+       errors[0x02] =  "The command is not recognised"
+       errors[0x03] =  "The option is not supported."
+       errors[0x0f] =  "Unknown error."
+       errors[0x10] =  "The specified block is not available (doesn’t exist)."
+       errors[0x11] =  "The specified block is already -locked and thus cannot be locked again"
+       errors[0x12] =  "The specified block is locked and its content cannot be changed."
+       errors[0x13] =  "The specified block was not successfully programmed."
+       errors[0x14] =  "The specified block was not successfully locked."
+       

        return errors[number] or "Reserved for Future Use or Custom command error." 
 end
 -------------------------------------------------------
        return errors[number] or "Reserved for Future Use or Custom command error." 
 end
 -------------------------------------------------------


@@ -64,7 +65,7 @@ local function parse15693(data)
        -- The following code is based on cmdhf15.c around line 666 (NoTB!) and onwards
        if core.iso15693_crc(data, string.len(data)) ~= 0xF47 then
                return nil, "CRC failed"
        -- The following code is based on cmdhf15.c around line 666 (NoTB!) and onwards
        if core.iso15693_crc(data, string.len(data)) ~= 0xF47 then
                return nil, "CRC failed"

-       else if data[1] % 2 == 1 then
+       elseif data[1] % 2 == 1 then

                -- Above is a poor-mans bit check:
                -- recv[0] & ISO15_RES_ERROR //(0x01)
                local err = "Tag returned error %i: %s"
                -- Above is a poor-mans bit check:
                -- recv[0] & ISO15_RES_ERROR //(0x01)
                local err = "Tag returned error %i: %s"


@@ -97,7 +98,7 @@ end
 -------------------------------------------------------
 
 local function read15693()
 -------------------------------------------------------
 
 local function read15693()

-       [[
+       --[[

 
        We start by trying this command:
         
 
        We start by trying this command:
         


@@ -126,7 +127,7 @@ local function read15693()
                proxmark3>
         
        From which we obtain less information than the above one.
                proxmark3>
         
        From which we obtain less information than the above one.

-       ]]
+       --]]

 
        local command, result, info, err, data
        local data = "02"
 
        local command, result, info, err, data
        local data = "02"


@@ -149,7 +150,7 @@ local function read15693()
        end
 
        local count,cmd,recvLen,arg1,arg2 = bin.unpack('LLLL',result)
        end
 
        local count,cmd,recvLen,arg1,arg2 = bin.unpack('LLLL',result)

-       data = string.sub(result,recvlen)
+       data = string.sub(result,recvLen)

        info, err = parse15693(data)
        
        if err then 
        info, err = parse15693(data)
        
        if err then 


@@ -159,8 +160,6 @@ local function read15693()
        return info
 end
 
        return info
 end
 

-
-}

 local reader15693 = {
        read = read15693
 }
 local reader15693 = {
        read = read15693
 }


@@ -174,13 +173,20 @@ local reader15693 = {
 -- @return if unsuccessfull : nil, error
 local function waitForTag()
        print("Waiting for card... press any key to quit")
 -- @return if unsuccessfull : nil, error
 local function waitForTag()
        print("Waiting for card... press any key to quit")

-       local readers = [reader14443A, reader14443B, readerISO15693]
-       local r
+       local readers = {reader14443A, reader14443B, reader15693}
+       local i = 0;

        while not core.ukbhit() do
        while not core.ukbhit() do

-               for _, r in ipairs(readers) do
-                       res, err = r.read()
-                       if res then return res end
+               i = (i % 3) +1
+               r = readers[i]
+               print("Reading with ",i)
+               res, err = r.read()
+               if res then return res end
+               print(err)

                        -- err means that there was no response from card
        end
        return nil, "Aborted by user"
                        -- err means that there was no response from card
        end
        return nil, "Aborted by user"

-end
\ No newline at end of file
+end
+
+return {
+       waitForTag = waitForTag,
+}