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CHG: reading a complete MIM1024 takes about 2.8sec. This timeout is changed to 3sec...
[proxmark3-svn] / client / lualibs / read14b.lua
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220d638d 1--[[
2 This is a library to read 14443b tags. It can be used something like this
3
4 local reader = require('read14b')
5 result, err = reader.select1443b()
6 if not result then
7 print(err)
8 return
9 end
10 print(result.name)
11
12--]]
13-- Loads the commands-library
14local cmds = require('commands')
15local utils = require('utils')
ffeb77fd 16local TIMEOUT = 2500
6fc68747 17local ISO14B_COMMAND = {
18 ISO14B_CONNECT = 1,
19 ISO14B_DISCONNECT = 2,
20 ISO14B_APDU = 4,
21 ISO14B_RAW = 8,
22 ISO14B_REQUEST_TRIGGER = 0x10,
23 ISO14B_APPEND_CRC = 0x20,
24 ISO14B_SELECT_STD = 0x40,
25 ISO14B_SELECT_SR = 0x80,
26}
220d638d 27
6fc68747 28local function parse1443b(data)
220d638d 29 --[[
6fc68747 30
31 Based on this struct :
32
33 typedef struct {
34 byte_t uid[10];
35 byte_t uidlen;
36 byte_t atqb[7];
37 byte_t chipid;
38 byte_t cid;
39 } __attribute__((__packed__)) iso14b_card_select_t;
220d638d 40
220d638d 41 --]]
6fc68747 42
43 local count, uid, uidlen, atqb, chipid, cid = bin.unpack('H10CH7CC',data)
44 uid = uid:sub(1,2*uidlen)
45 return { uid = uid, uidlen = uidlen, atqb = atqb, chipid = chipid, cid = cid }
220d638d 46end
47
220d638d 48--- Sends a USBpacket to the device
49-- @param command - the usb packet to send
6fc68747 50-- @param ignoreresponse - if set to true, we don't read the device answer packet
220d638d 51-- which is usually recipe for fail. If not sent, the host will wait 2s for a
52-- response of type CMD_ACK
53-- @return packet,nil if successfull
54-- nil, errormessage if unsuccessfull
6fc68747 55local function sendToDevice(cmd, ignoreresponse)
56 --core.clearCommandBuffer()
57 local bytes = cmd:getBytes()
58 local count,c,arg0,arg1,arg2 = bin.unpack('LLLL',bytes)
220d638d 59 local err = core.SendCommand(cmd:getBytes())
60 if err then
6fc68747 61 print('ERROR',err)
220d638d 62 return nil, err
63 end
6fc68747 64 if ignoreresponse then return nil,nil end
65
220d638d 66 local response = core.WaitForResponseTimeout(cmds.CMD_ACK, TIMEOUT)
220d638d 67 return response,nil
68end
69--- Picks out and displays the data read from a tag
70-- Specifically, takes a usb packet, converts to a Command
71-- (as in commands.lua), takes the data-array and
72-- reads the number of bytes specified in arg1 (arg0 in c-struct)
73-- and displays the data
74-- @param usbpacket the data received from the device
75local function showData(usbpacket)
76 local response = Command.parse(usbpacket)
6fc68747 77 local len = response.arg2 * 2
220d638d 78 local data = string.sub(response.data, 0, len);
79 print("<< ",data)
80end
81
220d638d 82
83-- This function does a connect and retrieves some info
84-- @return if successfull: an table containing card info
85-- @return if unsuccessfull : nil, error
6fc68747 86local function read14443b(disconnect)
220d638d 87
6fc68747 88 local command, result, info, err, data
220d638d 89
6fc68747 90 local flags = ISO14B_COMMAND.ISO14B_CONNECT +
91 ISO14B_COMMAND.ISO14B_SELECT_STD
92
93 if disconnect then
94 print('DISCONNECT')
95 flags = flags + ISO14B_COMMAND.ISO14B_DISCONNECT
220d638d 96 end
97
6fc68747 98 command = Command:new{cmd = cmds.CMD_ISO_14443B_COMMAND, arg1 = flags}
99 local result,err = sendToDevice(command, false)
220d638d 100 if result then
6fc68747 101 local count,cmd,arg0,arg1,arg2 = bin.unpack('LLLL',result)
102 if arg0 == 0 then
103 data = string.sub(result, count)
104 info, err = parse1443b(data)
105 else
106 err = "iso14443b card select failed"
220d638d 107 end
220d638d 108 else
109 err = "No response from card"
6fc68747 110 end
111
112 if err then
220d638d 113 print(err)
114 return nil, err
115 end
6fc68747 116 return info
220d638d 117end
6fc68747 118--PING / PONG - Custom Anticollison for Navigo.
119-- AA / BB ?!?
120-- local ping = ('BA00')
121-- result, err = sendRaw(ping, 1, 1)
122-- if result then
123 -- resp = Command.parse( result )
124 -- if arg1 == 0 then
125 -- return nil, "iso14443b card - PING/PONG failed"
126 -- end
127 -- showData(result)
128-- else
129 -- err = "No response from card"
130 -- print(err)
131 -- return nil, err
132-- end
133
220d638d 134
135---
136-- Waits for a mifare card to be placed within the vicinity of the reader.
137-- @return if successfull: an table containing card info
138-- @return if unsuccessfull : nil, error
139local function waitFor14443b()
140 print("Waiting for card... press any key to quit")
141 while not core.ukbhit() do
6fc68747 142 res, err = read14443b(false)
220d638d 143 if res then return res end
144 -- err means that there was no response from card
145 end
146 return nil, "Aborted by user"
147end
148
220d638d 149local library = {
6fc68747 150 parse1443b = parse1443b,
151 read1443b = read14443b,
220d638d 152 waitFor14443b = waitFor14443b,
153 sendToDevice = sendToDevice,
220d638d 154 showData = showData,
6fc68747 155 ISO14B_COMMAND = ISO14B_COMMAND,
220d638d 156}
157
158return library
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