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https://github.com/RfidResearchGroup/proxmark3.git
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This commit is contained in:
iceman1001
parent
a6ee9ef3e7
commit
805b679b2f
1 changed files with 65 additions and 86 deletions
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@ -1,6 +1,6 @@
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local getopt = require('getopt')
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local cmds = require('commands')
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local taglib = require('taglib')
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local lib14a = require('read14a')
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local utils = require('utils')
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copyright = ''
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@ -64,93 +64,58 @@ local function help()
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print(example)
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print(usage)
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end
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--- This function is a lua-implementation of
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-- cmdhf14a.c:waitCmd(uint8_t iSelect)
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local function waitCmd(iSelect)
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local response = core.WaitForResponseTimeout(cmds.CMD_ACK, 1000)
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if response then
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local count,cmd,arg0,arg1,arg2 = bin.unpack('LLLL',response)
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local iLen = arg0
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if iSelect then iLen = arg1 end
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dbg(("Received %i octets (arg0:%d, arg1:%d)"):format(iLen, arg0, arg1))
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if iLen == 0 then return nil, "No response from tag" end
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local recv = string.sub(response,count, iLen+count-1)
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return recv
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end
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return nil, "No response from device"
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--
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-- Sends an instruction to do nothing, only disconnect
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function disconnect()
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local command = Command:newMIX{cmd = cmds.CMD_READER_ISO_14443a, arg1 = 0,}
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-- We can ignore the response here, no ACK is returned for this command
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-- Check /armsrc/iso14443a.c, ReaderIso14443a() for details
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return command:sendMIX(true)
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end
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---
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--
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local function show(data)
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local formatString = ('H%d'):format(string.len(data))
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local _,hexdata = bin.unpack(formatString, data)
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dbg('Hexdata', hexdata)
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local function getblockdata(response)
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if not response then
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return nil, 'No response from device'
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end
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--- Fire up a connection with a tag, return uid
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-- @return UID if successfull
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-- @return nil, errormessage if unsuccessfull
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local function open()
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dbg('Opening connection')
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core.clearCommandBuffer()
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local x = string.format('hf 14a raw -r -p -s')
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dbg(x)
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core.console(x)
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dbg('done')
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data, err = waitCmd(true)
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if err then return oops(err) end
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show(data)
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local formatString = ('H%d'):format(string.len(data))
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local _,uid = bin.unpack(formatString, data)
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return uid
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local count, cmd, arg0 = bin.unpack('LL', response)
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if arg0 == 1 then
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local count, arg1, arg2, data = bin.unpack('LLH511', response, count)
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return data:sub(1, 32)
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else
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return nil, "Couldn't read block"
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end
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--- Shut down tag communication
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-- return no return values
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local function close()
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dbg('Closing connection')
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core.clearCommandBuffer()
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local x = string.format('hf 14a raw -r')
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dbg(x)
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core.console(x)
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dbg('done')
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end
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---_ Gets data from a block
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-- @return {block, block+1, block+2, block+3} if successfull
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-- @return nil, errormessage if unsuccessfull
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local function getBlock(block)
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local data, err
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core.clearCommandBuffer()
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local x = string.format('hf 14a raw -r -c -p 30 %02x', block)
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dbg(x)
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core.console(x)
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dbg('done')
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-- By now, there should be an ACK waiting from the device, since
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-- we used the -r flag (don't read response).
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data, err = waitCmd(false)
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if err then return oops(err) end
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show(data)
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if string.len(data) < 18 then
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return nil, ('Expected at least 18 bytes, got %d - this tag is not NDEF-compliant'):format(string.len(data))
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local function getBlock(blockno)
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local block, err
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local cmd = Command:newMIX{cmd = cmds.CMD_MIFAREU_READBL, arg1 = blockno, data = 0}
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block, err = getblockdata(cmd:sendMIX(false))
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if not block then return oops(err) end
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if #block < 32 then
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return nil, ('Expected at least 16 bytes, got %d - this tag is not NDEF-compliant'):format(string.len(data))
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end
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print('block', block)
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-- Now, parse out the block data
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-- 0534 00B9 049C AD7F 4A00 0000 E110 1000 2155
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-- b0b0 b0b0 b1b1 b1b1 b2b2 b2b2 b3b3 b3b3 CRCC
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b0 = string.sub(data, 1, 4)
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b1 = string.sub(data, 5, 8)
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b2 = string.sub(data, 9, 12)
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b3 = string.sub(data, 13, 16)
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b0 = string.sub(block, 1, 8)
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b1 = string.sub(block, 9, 16)
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b2 = string.sub(block, 17, 24)
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b3 = string.sub(block, 25, 32)
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return {b0, b1, b2, b3}
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end
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---
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--
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local function main( args)
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print( string.rep('--',20) )
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print( string.rep('--',20) )
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dbg('script started')
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local err, data, data2, k, v, i
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-- Read the parameters
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@ -159,6 +124,21 @@ local function main( args)
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if o == 'd' then DEBUG = true end
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end
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-- First of all, connect
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info, err = lib14a.read(true, true)
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if err then
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disconnect();
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return oops(err)
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end
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core.clearCommandBuffer()
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if info.name:match("Ultralight") then
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dbg('Found a tag')
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else
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disconnect()
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return oops('Not a Ultralightbased card. This script reads NDEF formatted UL/NTAGS')
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end
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-- Info contained within the tag (block 0 example)
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-- 0534 00B9 049C AD7F 4A00 0000 E110 1000 2155
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-- b0b0 b0b0 b1b1 b1b1 b2b2 b2b2 b3b3 b3b3 CRCC
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@ -167,31 +147,24 @@ local function main( args)
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-- N = NDEF-Structure-Compliant (if value is E1)
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-- V = NFC Forum Specification version (if 10 = v1.0)
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-- First, 'connect' (fire up the field) and get the uid
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local uidHexstr = open()
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-- First, get blockt 3 byte 2
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local blocks, err = getBlock(0)
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if err then
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close()
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disconnect()
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return oops(err)
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end
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-- Block 3 contains number of blocks
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local b3chars = {string.byte(blocks[4], 1,4)}
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local b3chars = utils.ConvertHexToBytes(blocks[4]);
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local numBlocks = b3chars[3] * 2 + 6
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print("Number of blocks:", numBlocks)
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-- NDEF compliant?
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if b3chars[1] ~= 0xE1 then
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close()
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disconnect()
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return oops('This tag is not NDEF-Compliant')
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end
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local ndefVersion = b3chars[2]
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-- Block 1, byte 1 contains manufacturer info
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local bl1_b1 = string.byte(blocks[1], 1)
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local manufacturer = taglib.lookupManufacturer(bl1_b1)
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local ndefversion = b3chars[2]
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-- Reuse existing info
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local blockData = {blocks[1], blocks[2], blocks[3], blocks[4]}
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@ -204,20 +177,26 @@ local function main( args)
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print('Dumping data...please wait')
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for i=4,numBlocks-1,1 do
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blocks, err = getBlock(i)
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if err then close(); return oops(err) end
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if err then
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disconnect();
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return oops(err)
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end
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table.insert(blockData, blocks[1])
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end
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-- Deactivate field
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close()
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disconnect()
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-- Print results
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print(string.format('Tag manufacturer: %s', manufacturer))
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print(string.format('Tag UID: %s', uidHexstr))
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print(string.format('Tag NDEF version: 0x%02x', ndefVersion))
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print('Tag info')
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print('UID ', info.uid)
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print('NDEF version', ('%02x'):format(ndefversion))
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print('Manufacturer', info.manufacturer)
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print('Type ', info.name)
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for k,v in ipairs(blockData) do
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print(string.format('Block %02x: %02x %02x %02x %02x', k-1, string.byte(v, 1,4)))
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end
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local filename, err = utils.writeDumpFile(uidHexstr, blockData)
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local filename, err = utils.WriteDumpFile(info.uid, blockData)
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if err then return oops(err) end
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print(string.format('Dumped data into %s', filename))
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