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[proxmark3-svn] / client / lualibs / read14a.lua
1 --[[
2 This is a library to read 14443a tags. It can be used something like this
3
4 local reader = require('read14a')
5 result, err = reader.read1443a()
6 if not result then
7 print(err)
8 return
9 end
10 print(result.name)
11
12 --]]
13 -- Loads the commands-library
14 local cmds = require('commands')
15 local TIMEOUT = 2000 -- Shouldn't take longer than 2 seconds
16 local ISO14A_COMMAND = {
17 ISO14A_CONNECT = 1,
18 ISO14A_NO_DISCONNECT = 2,
19 ISO14A_APDU = 4,
20 ISO14A_RAW = 8,
21 ISO14A_REQUEST_TRIGGER = 0x10,
22 ISO14A_APPEND_CRC = 0x20,
23 ISO14A_SET_TIMEOUT = 0x40
24 }
25
26 local ISO14443a_TYPES = {}
27 ISO14443a_TYPES[0x00] = "NXP MIFARE Ultralight | Ultralight C"
28 ISO14443a_TYPES[0x04] = "NXP MIFARE (various !DESFire !DESFire EV1)"
29 ISO14443a_TYPES[0x08] = "NXP MIFARE CLASSIC 1k | Plus 2k"
30 ISO14443a_TYPES[0x09] = "NXP MIFARE Mini 0.3k"
31 ISO14443a_TYPES[0x10] = "NXP MIFARE Plus 2k"
32 ISO14443a_TYPES[0x11] = "NXP MIFARE Plus 4k"
33 ISO14443a_TYPES[0x18] = "NXP MIFARE Classic 4k | Plus 4k"
34 ISO14443a_TYPES[0x20] = "NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k | JCOP 31/41"
35 ISO14443a_TYPES[0x24] = "NXP MIFARE DESFire | DESFire EV1"
36 ISO14443a_TYPES[0x28] = "JCOP31 or JCOP41 v2.3.1"
37 ISO14443a_TYPES[0x38] = "Nokia 6212 or 6131 MIFARE CLASSIC 4K"
38 ISO14443a_TYPES[0x88] = "Infineon MIFARE CLASSIC 1K"
39 ISO14443a_TYPES[0x98] = "Gemplus MPCOS"
40
41
42 local function tostring_1443a(sak)
43 return ISO14443a_TYPES[sak] or ("Unknown (SAK=%x)"):format(sak)
44 end
45
46 local function parse1443a(data)
47 --[[
48
49 Based on this struct :
50
51 typedef struct {
52 byte_t uid[10];
53 byte_t uidlen;
54 byte_t atqa[2];
55 byte_t sak;
56 byte_t ats_len;
57 byte_t ats[256];
58 } __attribute__((__packed__)) iso14a_card_select_t;
59
60 --]]
61
62 local count,uid,uidlen, atqa, sak, ats_len, ats= bin.unpack('H10CH2CC',data)
63 uid = uid:sub(1,2*uidlen)
64 --print("uid, atqa, sak: ",uid, atqa, sak)
65 --print("TYPE: ", tostring_1443a(sak))
66 return { uid = uid, atqa = atqa, sak = sak, name = tostring_1443a(sak)}
67 end
68
69 --- Sends a USBpacket to the device
70 -- @param command - the usb packet to send
71 -- @param ignoreresponse - if set to true, we don't read the device answer packet
72 -- which is usually recipe for fail. If not sent, the host will wait 2s for a
73 -- response of type CMD_ACK
74 -- @return packet,nil if successfull
75 -- nil, errormessage if unsuccessfull
76
77 local function sendToDevice(command, ignoreresponse)
78 core.clearCommandBuffer()
79 local err = core.SendCommand(command:getBytes())
80 if err then
81 print(err)
82 return nil, err
83 end
84 if ignoreresponse then return nil,nil end
85
86 local response = core.WaitForResponseTimeout(cmds.CMD_ACK,TIMEOUT)
87 return response,nil
88 end
89
90
91 local library = {
92 -- This function does a connect.
93 -- @param dont_disconnect - if true, does not disable the field
94 read1443a = function(dont_disconnect)
95
96 local command, result, info, err, data
97
98 command = Command:new{cmd = cmds.CMD_READER_ISO_14443a,
99 arg1 = ISO14A_COMMAND.ISO14A_CONNECT}
100 if dont_disconnect then
101 command.arg1 = command.arg1 + ISO14A_COMMAND.ISO14A_NO_DISCONNECT
102 end
103 local result,err = sendToDevice(command)
104 if result then
105 local count,cmd,arg0,arg1,arg2 = bin.unpack('LLLL',result)
106 if arg0 == 0 then
107 return nil, "iso14443a card select failed"
108 end
109 data = string.sub(result,count)
110 info, err = parse1443a(data)
111 else
112 err ="No response from card"
113 end
114
115 if err then
116 print(err)
117 return nil, err
118 end
119 return info
120 end,
121 parse1443a = parse1443a,
122 sendToDevice = sendToDevice,
123 ISO14A_COMMAND = ISO14A_COMMAND,
124 }
125
126 return library
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