]>
Commit | Line | Data |
---|---|---|
a2d82b46 | 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" | |
c15d2bdc | 28 | ISO14443a_TYPES[0x01] = "NXP MIFARE TNP3xxx Activision Game Appliance" |
a2d82b46 | 29 | ISO14443a_TYPES[0x04] = "NXP MIFARE (various !DESFire !DESFire EV1)" |
30 | ISO14443a_TYPES[0x08] = "NXP MIFARE CLASSIC 1k | Plus 2k" | |
31 | ISO14443a_TYPES[0x09] = "NXP MIFARE Mini 0.3k" | |
32 | ISO14443a_TYPES[0x10] = "NXP MIFARE Plus 2k" | |
33 | ISO14443a_TYPES[0x11] = "NXP MIFARE Plus 4k" | |
34 | ISO14443a_TYPES[0x18] = "NXP MIFARE Classic 4k | Plus 4k" | |
35 | ISO14443a_TYPES[0x20] = "NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k | JCOP 31/41" | |
36 | ISO14443a_TYPES[0x24] = "NXP MIFARE DESFire | DESFire EV1" | |
37 | ISO14443a_TYPES[0x28] = "JCOP31 or JCOP41 v2.3.1" | |
38 | ISO14443a_TYPES[0x38] = "Nokia 6212 or 6131 MIFARE CLASSIC 4K" | |
39 | ISO14443a_TYPES[0x88] = "Infineon MIFARE CLASSIC 1K" | |
40 | ISO14443a_TYPES[0x98] = "Gemplus MPCOS" | |
41 | ||
42 | ||
43 | local function tostring_1443a(sak) | |
44 | return ISO14443a_TYPES[sak] or ("Unknown (SAK=%x)"):format(sak) | |
45 | end | |
46 | ||
47 | local function parse1443a(data) | |
48 | --[[ | |
49 | ||
50 | Based on this struct : | |
51 | ||
52 | typedef struct { | |
53 | byte_t uid[10]; | |
54 | byte_t uidlen; | |
55 | byte_t atqa[2]; | |
56 | byte_t sak; | |
57 | byte_t ats_len; | |
58 | byte_t ats[256]; | |
59 | } __attribute__((__packed__)) iso14a_card_select_t; | |
60 | ||
61 | --]] | |
62 | ||
63 | local count,uid,uidlen, atqa, sak, ats_len, ats= bin.unpack('H10CH2CC',data) | |
64 | uid = uid:sub(1,2*uidlen) | |
65 | --print("uid, atqa, sak: ",uid, atqa, sak) | |
66 | --print("TYPE: ", tostring_1443a(sak)) | |
67 | return { uid = uid, atqa = atqa, sak = sak, name = tostring_1443a(sak)} | |
68 | end | |
69 | ||
b61f426c | 70 | --- Sends a USBpacket to the device |
71 | -- @param command - the usb packet to send | |
72 | -- @param ignoreresponse - if set to true, we don't read the device answer packet | |
73 | -- which is usually recipe for fail. If not sent, the host will wait 2s for a | |
74 | -- response of type CMD_ACK | |
75 | -- @return packet,nil if successfull | |
76 | -- nil, errormessage if unsuccessfull | |
77 | ||
78 | local function sendToDevice(command, ignoreresponse) | |
79 | core.clearCommandBuffer() | |
80 | local err = core.SendCommand(command:getBytes()) | |
81 | if err then | |
82 | print(err) | |
83 | return nil, err | |
84 | end | |
85 | if ignoreresponse then return nil,nil end | |
86 | ||
87 | local response = core.WaitForResponseTimeout(cmds.CMD_ACK,TIMEOUT) | |
88 | return response,nil | |
89 | end | |
90 | ||
65e344df | 91 | -- This function does a connect and retrieves som einfo |
92 | -- @param dont_disconnect - if true, does not disable the field | |
93 | -- @return if successfull: an table containing card info | |
94 | -- @return if unsuccessfull : nil, error | |
95 | local function read14443a(dont_disconnect) | |
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" | |
a2d82b46 | 108 | end |
65e344df | 109 | data = string.sub(result,count) |
110 | info, err = parse1443a(data) | |
111 | else | |
112 | err ="No response from card" | |
113 | end | |
a2d82b46 | 114 | |
65e344df | 115 | if err then |
116 | print(err) | |
117 | return nil, err | |
118 | end | |
119 | return info | |
120 | end | |
121 | ||
122 | --- | |
123 | -- Waits for a mifare card to be placed within the vicinity of the reader. | |
124 | -- @return if successfull: an table containing card info | |
125 | -- @return if unsuccessfull : nil, error | |
126 | local function waitFor14443a() | |
127 | print("Waiting for card... press any key to quit") | |
128 | while not core.ukbhit() do | |
129 | res, err = read14443a() | |
130 | if res then return res end | |
131 | -- err means that there was no response from card | |
132 | end | |
133 | return nil, "Aborted by user" | |
134 | end | |
135 | local library = { | |
136 | ||
137 | read1443a = read14443a, | |
5198f2e2 | 138 | read = read14443a, |
65e344df | 139 | waitFor14443a = waitFor14443a, |
b61f426c | 140 | parse1443a = parse1443a, |
141 | sendToDevice = sendToDevice, | |
142 | ISO14A_COMMAND = ISO14A_COMMAND, | |
a2d82b46 | 143 | } |
144 | ||
145 | return library |