This is a library to read 14443a tags. It can be used something like this
local reader = require('read14a')
- result, err = reader.read1443a()
+ result, err = reader.read14443a()
if not result then
print(err)
return
ISO14A_RAW = 8,
ISO14A_REQUEST_TRIGGER = 0x10,
ISO14A_APPEND_CRC = 0x20,
- ISO14A_SET_TIMEOUT = 0x40
+ ISO14A_SET_TIMEOUT = 0x40,
+ ISO14A_NO_SELECT = 0x80,
+ ISO14A_TOPAZMODE = 0x100,
+ ISO14A_NO_RATS = 0x200
}
-local ISO14443a_TYPES = {}
+local ISO14443a_TYPES = {}
ISO14443a_TYPES[0x00] = "NXP MIFARE Ultralight | Ultralight C"
+ISO14443a_TYPES[0x01] = "NXP MIFARE TNP3xxx Activision Game Appliance"
ISO14443a_TYPES[0x04] = "NXP MIFARE (various !DESFire !DESFire EV1)"
ISO14443a_TYPES[0x08] = "NXP MIFARE CLASSIC 1k | Plus 2k"
ISO14443a_TYPES[0x09] = "NXP MIFARE Mini 0.3k"
ISO14443a_TYPES[0x98] = "Gemplus MPCOS"
-local function tostring_1443a(sak)
+local function tostring_14443a(sak)
return ISO14443a_TYPES[sak] or ("Unknown (SAK=%x)"):format(sak)
end
-local function parse1443a(data)
+local function parse14443a(data)
--[[
- Based on this struct :
+ Based on this struct :
typedef struct {
byte_t uid[10];
local count,uid,uidlen, atqa, sak, ats_len, ats= bin.unpack('H10CH2CC',data)
uid = uid:sub(1,2*uidlen)
--print("uid, atqa, sak: ",uid, atqa, sak)
- --print("TYPE: ", tostring_1443a(sak))
- return { uid = uid, atqa = atqa, sak = sak, name = tostring_1443a(sak)}
+ --print("TYPE: ", tostring_14443a(sak))
+ return { uid = uid, atqa = atqa, sak = sak, name = tostring_14443a(sak)}
end
--- Sends a USBpacket to the device
-- @param command - the usb packet to send
--- @param ignoreresponse - if set to true, we don't read the device answer packet
--- which is usually recipe for fail. If not sent, the host will wait 2s for a
+-- @param ignoreresponse - if set to true, we don't read the device answer packet
+-- which is usually recipe for fail. If not sent, the host will wait 2s for a
-- response of type CMD_ACK
-- @return packet,nil if successfull
-- nil, errormessage if unsuccessfull
return response,nil
end
+-- This function does a connect and retrieves som einfo
+-- @param dont_disconnect - if true, does not disable the field
+-- @param no_rats - if true, skips ISO14443-4 select (RATS)
+-- @return if successfull: an table containing card info
+-- @return if unsuccessfull : nil, error
+local function read14443a(dont_disconnect, no_rats)
+ local command, result, info, err, data
+
+ command = Command:new{cmd = cmds.CMD_READER_ISO_14443a,
+ arg1 = ISO14A_COMMAND.ISO14A_CONNECT}
+ if dont_disconnect then
+ command.arg1 = command.arg1 + ISO14A_COMMAND.ISO14A_NO_DISCONNECT
+ end
+ if no_rats then
+ command.arg1 = command.arg1 + ISO14A_COMMAND.ISO14A_NO_RATS
+ end
+ local result,err = sendToDevice(command)
+ if result then
+ local count,cmd,arg0,arg1,arg2 = bin.unpack('LLLL',result)
+ if arg0 == 0 then
+ return nil, "iso14443a card select failed"
+ end
+ data = string.sub(result,count)
+ info, err = parse14443a(data)
+ else
+ err ="No response from card"
+ end
-local library = {
- -- This function does a connect.
- -- @param dont_disconnect - if true, does not disable the field
- read1443a = function(dont_disconnect)
-
- local command, result, info, err, data
+ if err then
+ print(err)
+ return nil, err
+ end
+ return info
+end
- command = Command:new{cmd = cmds.CMD_READER_ISO_14443a,
- arg1 = ISO14A_COMMAND.ISO14A_CONNECT}
- if dont_disconnect then
- command.arg1 = command.arg1 + ISO14A_COMMAND.ISO14A_NO_DISCONNECT
- end
- local result,err = sendToDevice(command)
- if result then
- local count,cmd,arg0,arg1,arg2 = bin.unpack('LLLL',result)
- if arg0 == 0 then
- print("iso14443a card select failed");
- return nil, "iso14443a card select failed"
- end
- data = string.sub(result,count)
- info, err = parse1443a(data)
- else
- err ="No response from card"
- end
+---
+-- Waits for a mifare card to be placed within the vicinity of the reader.
+-- @return if successfull: an table containing card info
+-- @return if unsuccessfull : nil, error
+local function waitFor14443a()
+ print("Waiting for card... press any key to quit")
+ while not core.ukbhit() do
+ res, err = read14443a()
+ if res then return res end
+ -- err means that there was no response from card
+ end
+ return nil, "Aborted by user"
+end
- if err then
- print(err)
- return nil, err
- end
- return info
- end,
- parse1443a = parse1443a,
+local library = {
+ read14443a = read14443a,
+ read = read14443a,
+ waitFor14443a = waitFor14443a,
+ parse14443a = parse14443a,
sendToDevice = sendToDevice,
ISO14A_COMMAND = ISO14A_COMMAND,
}
-return library
\ No newline at end of file
+return library