import sys
import time
import random
-import StringIO
import threading
import argparse
import nfc.handover
import logging
-logging.basicConfig()
import wpaspy
srv = None
continue_loop = True
terminate_now = False
+summary_file = None
+success_file = None
+
+def summary(txt):
+ print txt
+ if summary_file:
+ with open(summary_file, 'a') as f:
+ f.write(txt + "\n")
+
+def success_report(txt):
+ summary(txt)
+ if success_file:
+ with open(success_file, 'a') as f:
+ f.write(txt + "\n")
def wpas_connect():
ifaces = []
wpas = wpas_connect()
if (wpas == None):
return None
- return wpas.request("WPS_NFC_TOKEN NDEF").rstrip().decode("hex")
-
+ ret = wpas.request("WPS_NFC_TOKEN NDEF")
+ if "FAIL" in ret:
+ return None
+ return ret.rstrip().decode("hex")
def wpas_get_handover_req():
wpas = wpas_connect()
if (wpas == None):
return None
- return wpas.request("NFC_GET_HANDOVER_REQ NDEF WPS-CR").rstrip().decode("hex")
+ ret = wpas.request("NFC_GET_HANDOVER_REQ NDEF WPS-CR")
+ if "FAIL" in ret:
+ return None
+ return ret.rstrip().decode("hex")
def wpas_get_handover_sel(uuid):
self.ho_server_processing = False
self.success = False
+ # override to avoid parser error in request/response.pretty() in nfcpy
+ # due to new WSC handover format
+ def _process_request(self, request):
+ summary("received handover request {}".format(request.type))
+ response = nfc.ndef.Message("\xd1\x02\x01Hs\x12")
+ if not request.type == 'urn:nfc:wkt:Hr':
+ summary("not a handover request")
+ else:
+ try:
+ request = nfc.ndef.HandoverRequestMessage(request)
+ except nfc.ndef.DecodeError as e:
+ summary("error decoding 'Hr' message: {}".format(e))
+ else:
+ response = self.process_request(request)
+ summary("send handover response {}".format(response.type))
+ return response
+
def process_request(self, request):
self.ho_server_processing = True
- print "HandoverServer - request received"
- print "Parsed handover request: " + request.pretty()
+ summary("HandoverServer - request received")
+ try:
+ print "Parsed handover request: " + request.pretty()
+ except Exception, e:
+ print e
sel = nfc.ndef.HandoverSelectMessage(version="1.2")
for carrier in request.carriers:
print "Remote carrier type: " + carrier.type
if carrier.type == "application/vnd.wfa.wsc":
- print "WPS carrier type match - add WPS carrier record"
+ summary("WPS carrier type match - add WPS carrier record")
data = wpas_get_handover_sel(self.uuid)
if data is None:
- print "Could not get handover select carrier record from wpa_supplicant"
+ summary("Could not get handover select carrier record from wpa_supplicant")
continue
print "Handover select carrier record from wpa_supplicant:"
print data.encode("hex")
self.sent_carrier = data
- wpas_report_handover(carrier.record, self.sent_carrier, "RESP")
+ if "OK" in wpas_report_handover(carrier.record, self.sent_carrier, "RESP"):
+ success_report("Handover reported successfully (responder)")
+ else:
+ summary("Handover report rejected (responder)")
message = nfc.ndef.Message(data);
sel.add_carrier(message[0], "active", message[1:])
print "Handover select:"
- print sel.pretty()
+ try:
+ print sel.pretty()
+ except Exception, e:
+ print e
print str(sel).encode("hex")
- print "Sending handover select"
+ summary("Sending handover select")
self.success = True
return sel
def wps_handover_init(llc):
- print "Trying to initiate WPS handover"
+ summary("Trying to initiate WPS handover")
data = wpas_get_handover_req()
if (data == None):
- print "Could not get handover request carrier record from wpa_supplicant"
+ summary("Could not get handover request carrier record from wpa_supplicant")
return
print "Handover request carrier record from wpa_supplicant: " + data.encode("hex")
- record = nfc.ndef.Record()
- f = StringIO.StringIO(data)
- record._read(f)
- record = nfc.ndef.HandoverCarrierRecord(record)
- print "Parsed handover request carrier record:"
- print record.pretty()
message = nfc.ndef.HandoverRequestMessage(version="1.2")
message.nonce = random.randint(0, 0xffff)
- message.add_carrier(record, "active")
+ datamsg = nfc.ndef.Message(data)
+ message.add_carrier(datamsg[0], "active", datamsg[1:])
print "Handover request:"
- print message.pretty()
+ try:
+ print message.pretty()
+ except Exception, e:
+ print e
+ print str(message).encode("hex")
client = nfc.handover.HandoverClient(llc)
try:
- print "Trying handover";
+ summary("Trying to initiate NFC connection handover")
client.connect()
- print "Connected for handover"
+ summary("Connected for handover")
except nfc.llcp.ConnectRefused:
- print "Handover connection refused"
+ summary("Handover connection refused")
+ client.close()
+ return
+ except Exception, e:
+ summary("Other exception: " + str(e))
client.close()
return
- print "Sending handover request"
+ summary("Sending handover request")
if not client.send(message):
- print "Failed to send handover request"
+ summary("Failed to send handover request")
+ client.close()
+ return
- print "Receiving handover response"
+ summary("Receiving handover response")
message = client._recv()
if message is None:
- print "No response received"
+ summary("No response received")
client.close()
return
if message.type != "urn:nfc:wkt:Hs":
- print "Response was not Hs - received: " + message.type
+ summary("Response was not Hs - received: " + message.type)
client.close()
return
print "Received message"
- print message.pretty()
+ try:
+ print message.pretty()
+ except Exception, e:
+ print e
+ print str(message).encode("hex")
message = nfc.ndef.HandoverSelectMessage(message)
- print "Handover select received"
- print message.pretty()
+ summary("Handover select received")
+ try:
+ print message.pretty()
+ except Exception, e:
+ print e
for carrier in message.carriers:
print "Remote carrier type: " + carrier.type
if carrier.type == "application/vnd.wfa.wsc":
print "WPS carrier type match - send to wpa_supplicant"
- wpas_report_handover(data, carrier.record, "INIT")
- wifi = nfc.ndef.WifiConfigRecord(carrier.record)
- print wifi.pretty()
+ if "OK" in wpas_report_handover(data, carrier.record, "INIT"):
+ success_report("Handover reported successfully (initiator)")
+ else:
+ summary("Handover report rejected (initiator)")
+ # nfcpy does not support the new format..
+ #wifi = nfc.ndef.WifiConfigRecord(carrier.record)
+ #print wifi.pretty()
print "Remove peer"
client.close()
for record in tag.ndef.message:
print "record type " + record.type
if record.type == "application/vnd.wfa.wsc":
- print "WPS tag - send to wpa_supplicant"
+ summary("WPS tag - send to wpa_supplicant")
success = wpas_tag_read(tag.ndef.message)
break
else:
- print "Empty tag"
+ summary("Empty tag")
+
+ if success:
+ success_report("Tag read succeeded")
if wait_remove:
print "Remove tag"
def rdwr_connected_write(tag):
- print "Tag found - writing"
+ summary("Tag found - writing - " + str(tag))
global write_data
tag.ndef.message = str(write_data)
+ success_report("Tag write succeeded")
print "Done - remove tag"
global only_one
if only_one:
def rdwr_connected(tag):
global only_one, no_wait
- print "Tag connected: " + str(tag)
+ summary("Tag connected: " + str(tag))
if tag.ndef:
print "NDEF tag: " + tag.type
global continue_loop
continue_loop = False
else:
- print "Not an NDEF tag - remove tag"
+ summary("Not an NDEF tag - remove tag")
+ return True
return not no_wait
clf = nfc.ContactlessFrontend()
parser = argparse.ArgumentParser(description='nfcpy to wpa_supplicant integration for WPS NFC operations')
+ parser.add_argument('-d', const=logging.DEBUG, default=logging.INFO,
+ action='store_const', dest='loglevel',
+ help='verbose debug output')
+ parser.add_argument('-q', const=logging.WARNING, action='store_const',
+ dest='loglevel', help='be quiet')
parser.add_argument('--only-one', '-1', action='store_true',
help='run only one operation and exit')
parser.add_argument('--no-wait', action='store_true',
help='UUID of an AP (used for WPS ER operations)')
parser.add_argument('--id',
help='network id (used for WPS ER operations)')
+ parser.add_argument('--summary',
+ help='summary file for writing status updates')
+ parser.add_argument('--success',
+ help='success file for writing success update')
parser.add_argument('command', choices=['write-config',
'write-er-config',
'write-password'],
global no_wait
no_wait = args.no_wait
+ if args.summary:
+ global summary_file
+ summary_file = args.summary
+
+ if args.success:
+ global success_file
+ success_file = args.success
+
+ logging.basicConfig(level=args.loglevel)
+
try:
if not clf.open("usb"):
print "Could not open connection with an NFC device"
projects / mech_eap.git / blobdiff