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import utils, binascii
from generic_card import *
class PN532_Virtual_Card(Card):
# This is a virtual card that is enabled for the ACS ACR reader that
# contains a PN532 module
DRIVER_NAME = ["PN532"]
STATUS_WORDS = dict(Card.STATUS_WORDS)
COMMANDS = dict(Card.COMMANDS)
APDU_TRANSCEIVE_PN532 = C_APDU(cla=0xff, ins=0, p1=0, p2=0)
# The ACR122 has a maximum response data size of 0xf8
APDU_READ_BINARY = C_APDU(cla=0, ins=0xb0, le=0xf8)
def cmd_pn532(self, *cmd):
"Transmit a command to the PN532 and receive the response"
result = self.pn532_transceive(binascii.unhexlify("".join("".join(cmd).split())))
print utils.hexdump(result.data)
parsed = self.pn532_parse(result.data)
if len(parsed) > 0:
print "\n".join(parsed) + "\n"
def cmd_pn532_poll(self):
"Poll for cards in the field"
self.cmd_pn532("d4 4a 01 00")
def pn532_transceive(self, cmd):
if len(cmd) > 1:
if cmd[0] == "\xd4":
s = "pn532_prepare_command_%02X" % ord(cmd[1])
if hasattr(self, s):
cmd = getattr(self, s)(cmd)
if hasattr(self.reader, "pn532_transceive_raw"):
return R_APDU(self.reader.pn532_transceive_raw(cmd))
else:
apdu = C_APDU(self.APDU_TRANSCEIVE_PN532, lc=len(cmd), data=cmd)
response = self.send_apdu(apdu)
return response
def pn532_parse(self, response):
result = []
type = None
cmd = None
if len(response) == 0:
pass
elif response[0] == "\xd4":
type="command"
elif response[0] == "\xd5":
type="response"
else:
result.append("Invalid PN532 direction header")
if len(response) > 1: cmd = ord(response[1])
if type is not None:
desc = "PN532 %s (%s)" % (type,
self.PN532_COMMANDS.get(cmd & 0xfe, "Unknown command") )
result.append(desc)
if len(response) > 1:
s = "pn532_parse_%s_%02X" % (type, cmd)
if hasattr(self, s):
result.extend( getattr(self, s)(response[2:]) )
elif len(response) > 2:
result.append( "No detailed decoding available" )
return result
def pn532_parse_response_03(self, response):
return [ "Version: PN5%02X, firmware %i.%i (cap: %02X)" % tuple(map(ord, response)) ]
def pn532_parse_response_05(self, response):
result = ["Last error: %02X" % ord(response[0]),
"External field: %s" % ( response[1] == "\x01" and "present" or "not present" ),
"Number of targets: %i" % ord(response[2])]
for i in range( (len(response)-4)/4 ):
t = "Target %i: %i kbps receive, %i kbps send, type: %s" % (
ord(response[3+i*4]),
self.PN532_BIT_RATES.get( ord(response[3+i*4+1]), "XXX" ),
self.PN532_BIT_RATES.get( ord(response[3+i*4+2]), "XXX" ),
self.PN532_TAG_TYPES.get( ord(response[3+i*4+3]), "unknown" ),
)
result.append(t)
result.append( "SAM status: %02X" % ord(response[-1]) )
return result
def pn532_prepare_command_4A(self, cmd):
if len(cmd) > 3:
self._last_baudrate_polled = ord(cmd[3])
else:
self._last_baudrate_polled = None
return cmd
def pn532_parse_response_4B(self, response):
r = utils.PN532_Response_InListPassiveTarget(data = response)
parse_ok = r.parse_result(self._last_baudrate_polled)
result = ["Targets detected: %i" % len(r.targets)]
if not parse_ok:
result.append("Parse error, results unreliable")
for index, target in r.targets.items():
s = "Target %i: %s" % (index, target.type)
if target.type == utils.PN532_Target.TYPE_ISO14443A:
s = s + ", SENS_RES: %02X %02X, SEL_RES: %02X" % (
target.sens_res[0], target.sens_res[1], target.sel_res)
if len(target.nfcid) > 0:
s = s + ", NFCID (%i bytes): %s" % (
len(target.nfcid), " ".join(map(lambda a: "%02X" % a, target.nfcid)))
if len(target.ats) > 0:
s = s + ", ATS (%i bytes): %s" % (
len(target.ats), " ".join(map(lambda a: "%02X" % a, target.ats)))
result.append(s)
return result
def can_handle(cls, reader):
"""Determine whether this class can handle a given reader object."""
if reader.name.startswith("ACS ACR 38U-CCID"):
return True
return False
can_handle = classmethod(can_handle)
STATUS_WORDS.update( {
'\x63\x00': "Operation failed",
'\x63\x01': "PN532 did not respond",
'\x63\x27': "PN532 response checksum wrong",
'\x63\x7f': "PN532 command wrong",
} )
COMMANDS.update( {
"pn532": cmd_pn532,
"pn532_poll": cmd_pn532_poll,
} )
PN532_COMMANDS = {
0x00: "Diagnose",
0x02: "GetFirmwareVersion",
0x04: "GetGeneralStatus",
0x06: "ReadRegister",
0x08: "WriteRegister",
0x0c: "ReadGPIO",
0x0e: "WriteGPIO",
0x10: "SetSerialBaudrate",
0x12: "SetParameters",
0x14: "SAMConfiguration",
0x16: "PowerDown",
0x32: "RFConfiguration",
0x58: "RFRegulationTest",
0x56: "InJumpForDEP",
0x46: "InJumpForPSL",
0x4A: "InListPassiveTarget",
0x50: "InATR",
0x4E: "InPSL",
0x40: "InDataExchange",
0x42: "InCommunicateThru",
0x44: "InDeselect",
0x52: "InRelease",
0x54: "InSelect",
0x60: "InPoll",
0x8C: "TgInitAsTarget",
0x92: "TgSetGeneralBytes",
0x86: "TgGetData",
0x8E: "TgSetData",
0x94: "TgSetMetaData",
0x88: "TgGetInitiatorCommand",
0x90: "TgResponseToInitiator",
0x8A: "TgGetTargetStatus",
}
PN532_BIT_RATES = {
0x0: 106,
0x1: 212,
0x2: 424,
}
PN532_TAG_TYPES = {
0x00: "Mifare, ISO 14443-3 A/B or ISO 18092 passive 106 kbps",
0x10: "FeliCa or ISO 18092 passive 212/424 kbps",
0x01: "ISO 18092 active",
0x02: "Innovision Jewel",
}
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