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📄 60_wpa_supplicant(267 B)
📄 dbus-listen-preq.py(1.53 KB)
📄 ieee8021x.conf(269 B)
📄 openCryptoki.conf(1.12 KB)
📁 p2p
📄 p2p-action-udhcp.sh(1.68 KB)
📄 p2p-action.sh(2.63 KB)
📄 p2p-nfc.py(19.73 KB)
📄 plaintext.conf(133 B)
📄 udhcpd-p2p.conf(2.86 KB)
📄 wep.conf(170 B)
📄 wpa-psk-tkip.conf(181 B)
📄 wpa2-eap-ccmp.conf(284 B)
📄 wpas-dbus-new-getall.py(1.7 KB)
📄 wpas-dbus-new-signals.py(5.93 KB)
📄 wpas-dbus-new-wps.py(2.17 KB)
📄 wpas-dbus-new.py(4.17 KB)
📄 wpas-test.py(2.51 KB)
📄 wps-ap-cli(1.15 KB)
📄 wps-nfc.py(15.31 KB)

Editing: wps-nfc.py

#!/usr/bin/python
#
# Example nfcpy to wpa_supplicant wrapper for WPS NFC operations
# Copyright (c) 2012-2013, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.

import os
import sys
import time
import random
import threading
import argparse

import nfc
import nfc.ndef
import nfc.llcp
import nfc.handover

import logging

import wpaspy

wpas_ctrl = '/var/run/wpa_supplicant'
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 = []
    if os.path.isdir(wpas_ctrl):
        try:
            ifaces = [os.path.join(wpas_ctrl, i) for i in os.listdir(wpas_ctrl)]
        except OSError, error:
            print "Could not find wpa_supplicant: ", error
            return None

if len(ifaces) < 1:
        print "No wpa_supplicant control interface found"
        return None

for ctrl in ifaces:
        try:
            wpas = wpaspy.Ctrl(ctrl)
            return wpas
        except Exception, e:
            pass
    return None

def wpas_tag_read(message):
    wpas = wpas_connect()
    if (wpas == None):
        return False
    if "FAIL" in wpas.request("WPS_NFC_TAG_READ " + str(message).encode("hex")):
        return False
    return True

def wpas_get_config_token(id=None):
    wpas = wpas_connect()
    if (wpas == None):
        return None
    if id:
        ret = wpas.request("WPS_NFC_CONFIG_TOKEN NDEF " + id)
    else:
        ret = wpas.request("WPS_NFC_CONFIG_TOKEN NDEF")
    if "FAIL" in ret:
        return None
    return ret.rstrip().decode("hex")

def wpas_get_er_config_token(uuid):
    wpas = wpas_connect()
    if (wpas == None):
        return None
    ret = wpas.request("WPS_ER_NFC_CONFIG_TOKEN NDEF " + uuid)
    if "FAIL" in ret:
        return None
    return ret.rstrip().decode("hex")

def wpas_get_password_token():
    wpas = wpas_connect()
    if (wpas == None):
        return None
    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
    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):
    wpas = wpas_connect()
    if (wpas == None):
        return None
    if uuid is None:
        res = wpas.request("NFC_GET_HANDOVER_SEL NDEF WPS-CR").rstrip()
    else:
	res = wpas.request("NFC_GET_HANDOVER_SEL NDEF WPS-CR " + uuid).rstrip()
    if "FAIL" in res:
	return None
    return res.decode("hex")

def wpas_report_handover(req, sel, type):
    wpas = wpas_connect()
    if (wpas == None):
        return None
    return wpas.request("NFC_REPORT_HANDOVER " + type + " WPS " +
                        str(req).encode("hex") + " " +
                        str(sel).encode("hex"))

class HandoverServer(nfc.handover.HandoverServer):
    def __init__(self, llc):
        super(HandoverServer, self).__init__(llc)
        self.sent_carrier = None
        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
        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":
                summary("WPS carrier type match - add WPS carrier record")
                data = wpas_get_handover_sel(self.uuid)
                if data is None:
                    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
                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:"
        try:
            print sel.pretty()
        except Exception, e:
            print e
        print str(sel).encode("hex")

summary("Sending handover select")
        self.success = True
        return sel

def wps_handover_init(llc):
    summary("Trying to initiate WPS handover")

data = wpas_get_handover_req()
    if (data == None):
        summary("Could not get handover request carrier record from wpa_supplicant")
        return
    print "Handover request carrier record from wpa_supplicant: " + data.encode("hex")

message = nfc.ndef.HandoverRequestMessage(version="1.2")
    message.nonce = random.randint(0, 0xffff)
    datamsg = nfc.ndef.Message(data)
    message.add_carrier(datamsg[0], "active", datamsg[1:])

print "Handover request:"
    try:
        print message.pretty()
    except Exception, e:
        print e
    print str(message).encode("hex")

client = nfc.handover.HandoverClient(llc)
    try:
        summary("Trying to initiate NFC connection handover")
        client.connect()
        summary("Connected for handover")
    except nfc.llcp.ConnectRefused:
        summary("Handover connection refused")
        client.close()
        return
    except Exception, e:
        summary("Other exception: " + str(e))
        client.close()
        return

summary("Sending handover request")

if not client.send(message):
        summary("Failed to send handover request")
        client.close()
        return

summary("Receiving handover response")
    message = client._recv()
    if message is None:
        summary("No response received")
        client.close()
        return
    if message.type != "urn:nfc:wkt:Hs":
        summary("Response was not Hs - received: " + message.type)
        client.close()
        return

print "Received message"
    try:
        print message.pretty()
    except Exception, e:
        print e
    print str(message).encode("hex")
    message = nfc.ndef.HandoverSelectMessage(message)
    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"
            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()
    print "Done with handover"
    global only_one
    if only_one:
        global continue_loop
        continue_loop = False

global no_wait
    if no_wait:
        print "Trying to exit.."
        global terminate_now
        terminate_now = True

def wps_tag_read(tag, wait_remove=True):
    success = False
    if len(tag.ndef.message):
        for record in tag.ndef.message:
            print "record type " + record.type
            if record.type == "application/vnd.wfa.wsc":
                summary("WPS tag - send to wpa_supplicant")
                success = wpas_tag_read(tag.ndef.message)
                break
    else:
        summary("Empty tag")

if success:
        success_report("Tag read succeeded")

if wait_remove:
        print "Remove tag"
        while tag.is_present:
            time.sleep(0.1)

return success

def rdwr_connected_write(tag):
    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:
        global continue_loop
        continue_loop = False
    global write_wait_remove
    while write_wait_remove and tag.is_present:
        time.sleep(0.1)

def wps_write_config_tag(clf, id=None, wait_remove=True):
    print "Write WPS config token"
    global write_data, write_wait_remove
    write_wait_remove = wait_remove
    write_data = wpas_get_config_token(id)
    if write_data == None:
        print "Could not get WPS config token from wpa_supplicant"
        sys.exit(1)
        return
    print "Touch an NFC tag"
    clf.connect(rdwr={'on-connect': rdwr_connected_write})

def wps_write_er_config_tag(clf, uuid, wait_remove=True):
    print "Write WPS ER config token"
    global write_data, write_wait_remove
    write_wait_remove = wait_remove
    write_data = wpas_get_er_config_token(uuid)
    if write_data == None:
        print "Could not get WPS config token from wpa_supplicant"
        return

print "Touch an NFC tag"
    clf.connect(rdwr={'on-connect': rdwr_connected_write})

def wps_write_password_tag(clf, wait_remove=True):
    print "Write WPS password token"
    global write_data, write_wait_remove
    write_wait_remove = wait_remove
    write_data = wpas_get_password_token()
    if write_data == None:
        print "Could not get WPS password token from wpa_supplicant"
        return

print "Touch an NFC tag"
    clf.connect(rdwr={'on-connect': rdwr_connected_write})

def rdwr_connected(tag):
    global only_one, no_wait
    summary("Tag connected: " + str(tag))

if tag.ndef:
        print "NDEF tag: " + tag.type
        try:
            print tag.ndef.message.pretty()
        except Exception, e:
            print e
        success = wps_tag_read(tag, not only_one)
        if only_one and success:
            global continue_loop
            continue_loop = False
    else:
        summary("Not an NDEF tag - remove tag")
        return True

return not no_wait

def llcp_worker(llc):
    global arg_uuid
    if arg_uuid is None:
        wps_handover_init(llc)
        print "Exiting llcp_worker thread"
        return

global srv
    global wait_connection
    while not wait_connection and srv.sent_carrier is None:
        if srv.ho_server_processing:
            time.sleep(0.025)

def llcp_startup(clf, llc):
    global arg_uuid
    if arg_uuid:
        print "Start LLCP server"
        global srv
        srv = HandoverServer(llc)
        if arg_uuid is "ap":
            print "Trying to handle WPS handover"
            srv.uuid = None
        else:
            print "Trying to handle WPS handover with AP " + arg_uuid
            srv.uuid = arg_uuid
    return llc

def llcp_connected(llc):
    print "P2P LLCP connected"
    global wait_connection
    wait_connection = False
    global arg_uuid
    if arg_uuid:
        global srv
        srv.start()
    else:
        threading.Thread(target=llcp_worker, args=(llc,)).start()
    print "llcp_connected returning"
    return True

def terminate_loop():
    global terminate_now
    return terminate_now

def main():
    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='do not wait for tag to be removed before exiting')
    parser.add_argument('--uuid',
                        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'],
                        nargs='?')
    args = parser.parse_args()

global arg_uuid
    arg_uuid = args.uuid

global only_one
    only_one = args.only_one

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"
            raise SystemExit

if args.command == "write-config":
            wps_write_config_tag(clf, id=args.id, wait_remove=not args.no_wait)
            raise SystemExit

if args.command == "write-er-config":
            wps_write_er_config_tag(clf, args.uuid, wait_remove=not args.no_wait)
            raise SystemExit

if args.command == "write-password":
            wps_write_password_tag(clf, wait_remove=not args.no_wait)
            raise SystemExit

global continue_loop
        while continue_loop:
            print "Waiting for a tag or peer to be touched"
            wait_connection = True
            try:
                if not clf.connect(rdwr={'on-connect': rdwr_connected},
                                   llcp={'on-startup': llcp_startup,
                                         'on-connect': llcp_connected},
                                   terminate=terminate_loop):
                    break
            except Exception, e:
                print "clf.connect failed"

global srv
            if only_one and srv and srv.success:
                raise SystemExit

except KeyboardInterrupt:
        raise SystemExit
    finally:
        clf.close()

raise SystemExit

if __name__ == '__main__':
    main()

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