WPS NFC: Update wps-nfc.py and wps-ap-nfc.py to use new nfcpy API
This moves many of the peer discovery operations into the core nfcpy. Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen
Jouni Malinen
parent
c8373f1015
commit
6f8fa6e552
2 changed files with 209 additions and 245 deletions
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@ -21,6 +21,7 @@ logging.basicConfig()
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import wpaspy
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wpas_ctrl = '/var/run/hostapd'
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continue_loop = True
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def wpas_connect():
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ifaces = []
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@ -48,7 +49,9 @@ def wpas_tag_read(message):
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wpas = wpas_connect()
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if (wpas == None):
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return
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print wpas.request("WPS_NFC_TAG_READ " + message.encode("hex"))
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if "FAIL" in wpas.request("WPS_NFC_TAG_READ " + str(message).encode("hex")):
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return False
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return True
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def wpas_get_config_token():
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@ -82,8 +85,10 @@ def wpas_report_handover(req, sel):
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class HandoverServer(nfc.handover.HandoverServer):
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def __init__(self):
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super(HandoverServer, self).__init__()
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def __init__(self, llc):
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super(HandoverServer, self).__init__(llc)
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self.ho_server_processing = False
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self.success = False
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def process_request(self, request):
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print "HandoverServer - request received"
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@ -95,14 +100,13 @@ class HandoverServer(nfc.handover.HandoverServer):
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print "Remote carrier type: " + carrier.type
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if carrier.type == "application/vnd.wfa.wsc":
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print "WPS carrier type match - add WPS carrier record"
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self.received_carrier = carrier.record
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data = wpas_get_handover_sel()
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if data is None:
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print "Could not get handover select carrier record from hostapd"
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continue
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print "Handover select carrier record from hostapd:"
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print data.encode("hex")
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self.sent_carrier = data
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wpas_report_handover(carrier.record, data)
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message = nfc.ndef.Message(data);
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sel.add_carrier(message[0], "active", message[1:])
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@ -112,132 +116,112 @@ class HandoverServer(nfc.handover.HandoverServer):
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print str(sel).encode("hex")
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print "Sending handover select"
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self.success = True
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return sel
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def wps_handover_resp(peer):
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print "Trying to handle WPS handover"
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srv = HandoverServer()
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srv.sent_carrier = None
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nfc.llcp.activate(peer);
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try:
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print "Trying handover";
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srv.start()
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print "Wait for disconnect"
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while nfc.llcp.connected():
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time.sleep(0.1)
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print "Disconnected after handover"
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except nfc.llcp.ConnectRefused:
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print "Handover connection refused"
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nfc.llcp.shutdown()
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return
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if srv.sent_carrier:
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wpas_report_handover(srv.received_carrier, srv.sent_carrier)
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print "Remove peer"
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nfc.llcp.shutdown()
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print "Done with handover"
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def wps_tag_read(tag):
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success = False
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if len(tag.ndef.message):
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message = nfc.ndef.Message(tag.ndef.message)
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print "message type " + message.type
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for record in message:
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for record in tag.ndef.message:
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print "record type " + record.type
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if record.type == "application/vnd.wfa.wsc":
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print "WPS tag - send to hostapd"
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wpas_tag_read(tag.ndef.message)
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success = wpas_tag_read(tag.ndef.message)
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break
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else:
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print "Empty tag"
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print "Remove tag"
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while tag.is_present:
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time.sleep(0.1)
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return success
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def rdwr_connected_write(tag):
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print "Tag found - writing"
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global write_data
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tag.ndef.message = str(write_data)
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print "Done - remove tag"
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global only_one
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if only_one:
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global continue_loop
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continue_loop = False
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global write_wait_remove
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while write_wait_remove and tag.is_present:
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time.sleep(0.1)
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def wps_write_config_tag(clf):
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print "Write WPS config token"
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data = wpas_get_config_token()
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if (data == None):
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global write_data, write_wait_remove
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write_wait_remove = True
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write_data = wpas_get_config_token()
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if write_data == None:
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print "Could not get WPS config token from hostapd"
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return
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print "Touch an NFC tag"
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while True:
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tag = clf.poll()
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if tag == None:
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time.sleep(0.1)
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continue
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break
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print "Tag found - writing"
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tag.ndef.message = data
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print "Done - remove tag"
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while tag.is_present:
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time.sleep(0.1)
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clf.connect(rdwr={'on-connect': rdwr_connected_write})
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def wps_write_password_tag(clf):
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print "Write WPS password token"
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data = wpas_get_password_token()
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if (data == None):
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global write_data, write_wait_remove
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write_wait_remove = True
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write_data = wpas_get_password_token()
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if write_data == None:
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print "Could not get WPS password token from hostapd"
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return
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print "Touch an NFC tag"
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while True:
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tag = clf.poll()
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if tag == None:
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time.sleep(0.1)
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continue
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break
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clf.connect(rdwr={'on-connect': rdwr_connected_write})
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print "Tag found - writing"
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tag.ndef.message = data
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print "Done - remove tag"
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def rdwr_connected(tag):
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global only_one
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print "Tag connected: " + str(tag)
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if tag.ndef:
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print "NDEF tag: " + tag.type
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try:
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print tag.ndef.message.pretty()
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except Exception, e:
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print e
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success = wps_tag_read(tag)
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if only_one and success:
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global continue_loop
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continue_loop = False
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else:
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print "Not an NDEF tag - remove tag"
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while tag.is_present:
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time.sleep(0.1)
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return not no_wait
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def find_peer(clf):
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while True:
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if nfc.llcp.connected():
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print "LLCP connected"
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general_bytes = nfc.llcp.startup({})
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peer = clf.listen(ord(os.urandom(1)) + 250, general_bytes)
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if isinstance(peer, nfc.DEP):
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print "listen -> DEP";
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if peer.general_bytes.startswith("Ffm"):
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print "Found DEP"
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return peer
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print "mismatch in general_bytes"
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print peer.general_bytes
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peer = clf.poll(general_bytes)
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if isinstance(peer, nfc.DEP):
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print "poll -> DEP";
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if peer.general_bytes.startswith("Ffm"):
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print "Found DEP"
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return peer
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print "mismatch in general_bytes"
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print peer.general_bytes
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def llcp_startup(clf, llc):
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print "Start LLCP server"
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global srv
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srv = HandoverServer(llc)
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return llc
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if peer:
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print "Found tag"
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return peer
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def llcp_connected(llc):
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print "P2P LLCP connected"
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global wait_connection
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wait_connection = False
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global srv
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srv.start()
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return True
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def main():
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clf = nfc.ContactlessFrontend()
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try:
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if not clf.open("usb"):
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print "Could not open connection with an NFC device"
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raise SystemExit
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global only_one
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only_one = False
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if len(sys.argv) > 1 and sys.argv[1] == "write-config":
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wps_write_config_tag(clf)
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raise SystemExit
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@ -246,21 +230,21 @@ def main():
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wps_write_password_tag(clf)
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raise SystemExit
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while True:
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global continue_loop
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while continue_loop:
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print "Waiting for a tag or peer to be touched"
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wait_connection = True
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try:
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if not clf.connect(rdwr={'on-connect': rdwr_connected},
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llcp={'on-startup': llcp_startup,
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'on-connect': llcp_connected}):
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break
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except Exception, e:
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print "clf.connect failed"
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tag = find_peer(clf)
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if isinstance(tag, nfc.DEP):
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wps_handover_resp(tag)
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continue
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if tag.ndef:
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wps_tag_read(tag)
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continue
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print "Not an NDEF tag - remove tag"
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while tag.is_present:
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time.sleep(0.1)
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global srv
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if only_one and srv and srv.success:
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raise SystemExit
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except KeyboardInterrupt:
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raise SystemExit
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@ -11,6 +11,7 @@ import sys
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import time
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import random
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import StringIO
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import threading
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import nfc
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import nfc.ndef
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@ -23,6 +24,8 @@ logging.basicConfig()
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import wpaspy
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wpas_ctrl = '/var/run/wpa_supplicant'
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srv = None
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continue_loop = True
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def wpas_connect():
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ifaces = []
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@ -50,7 +53,7 @@ def wpas_tag_read(message):
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wpas = wpas_connect()
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if (wpas == None):
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return False
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if "FAIL" in wpas.request("WPS_NFC_TAG_READ " + message.encode("hex")):
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if "FAIL" in wpas.request("WPS_NFC_TAG_READ " + str(message).encode("hex")):
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return False
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return True
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@ -107,10 +110,14 @@ def wpas_report_handover(req, sel, type):
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class HandoverServer(nfc.handover.HandoverServer):
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def __init__(self):
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super(HandoverServer, self).__init__()
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def __init__(self, llc):
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super(HandoverServer, self).__init__(llc)
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self.sent_carrier = None
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self.ho_server_processing = False
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self.success = False
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def process_request(self, request):
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self.ho_server_processing = True
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print "HandoverServer - request received"
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print "Parsed handover request: " + request.pretty()
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@ -120,7 +127,6 @@ class HandoverServer(nfc.handover.HandoverServer):
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print "Remote carrier type: " + carrier.type
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if carrier.type == "application/vnd.wfa.wsc":
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print "WPS carrier type match - add WPS carrier record"
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self.received_carrier = carrier.record
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data = wpas_get_handover_sel(self.uuid)
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if data is None:
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print "Could not get handover select carrier record from wpa_supplicant"
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@ -128,6 +134,7 @@ class HandoverServer(nfc.handover.HandoverServer):
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print "Handover select carrier record from wpa_supplicant:"
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print data.encode("hex")
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self.sent_carrier = data
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wpas_report_handover(carrier.record, self.sent_carrier, "RESP")
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message = nfc.ndef.Message(data);
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sel.add_carrier(message[0], "active", message[1:])
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@ -137,43 +144,11 @@ class HandoverServer(nfc.handover.HandoverServer):
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print str(sel).encode("hex")
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print "Sending handover select"
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self.success = True
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return sel
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def wps_handover_resp(peer, uuid):
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if uuid is None:
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print "Trying to handle WPS handover"
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else:
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print "Trying to handle WPS handover with AP " + uuid
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srv = HandoverServer()
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srv.sent_carrier = None
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srv.uuid = uuid
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nfc.llcp.activate(peer);
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try:
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print "Trying handover";
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srv.start()
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print "Wait for disconnect"
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while nfc.llcp.connected():
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time.sleep(0.1)
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print "Disconnected after handover"
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except nfc.llcp.ConnectRefused:
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print "Handover connection refused"
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nfc.llcp.shutdown()
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return
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if srv.sent_carrier:
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wpas_report_handover(srv.received_carrier, srv.sent_carrier, "RESP")
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print "Remove peer"
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nfc.llcp.shutdown()
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print "Done with handover"
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time.sleep(1)
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def wps_handover_init(peer):
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def wps_handover_init(llc):
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print "Trying to initiate WPS handover"
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data = wpas_get_handover_req()
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@ -195,16 +170,13 @@ def wps_handover_init(peer):
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print "Handover request:"
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print message.pretty()
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nfc.llcp.activate(peer);
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client = nfc.handover.HandoverClient()
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client = nfc.handover.HandoverClient(llc)
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try:
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print "Trying handover";
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client.connect()
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print "Connected for handover"
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except nfc.llcp.ConnectRefused:
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print "Handover connection refused"
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nfc.llcp.shutdown()
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client.close()
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return
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@ -217,12 +189,10 @@ def wps_handover_init(peer):
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message = client._recv()
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if message is None:
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print "No response received"
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nfc.llcp.shutdown()
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client.close()
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return
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if message.type != "urn:nfc:wkt:Hs":
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print "Response was not Hs - received: " + message.type
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nfc.llcp.shutdown()
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client.close()
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return
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@ -241,18 +211,18 @@ def wps_handover_init(peer):
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print wifi.pretty()
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print "Remove peer"
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nfc.llcp.shutdown()
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client.close()
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print "Done with handover"
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global only_one
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if only_one:
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global continue_loop
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continue_loop = False
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def wps_tag_read(tag, wait_remove=True):
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success = False
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if len(tag.ndef.message):
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message = nfc.ndef.Message(tag.ndef.message)
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print "message type " + message.type
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for record in message:
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for record in tag.ndef.message:
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print "record type " + record.type
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if record.type == "application/vnd.wfa.wsc":
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print "WPS tag - send to wpa_supplicant"
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@ -269,114 +239,137 @@ def wps_tag_read(tag, wait_remove=True):
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return success
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def rdwr_connected_write(tag):
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print "Tag found - writing"
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global write_data
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tag.ndef.message = str(write_data)
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print "Done - remove tag"
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global only_one
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if only_one:
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global continue_loop
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continue_loop = False
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global write_wait_remove
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while write_wait_remove and tag.is_present:
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time.sleep(0.1)
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def wps_write_config_tag(clf, id=None, wait_remove=True):
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print "Write WPS config token"
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data = wpas_get_config_token(id)
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if (data == None):
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global write_data, write_wait_remove
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write_wait_remove = wait_remove
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write_data = wpas_get_config_token(id)
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if write_data == None:
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print "Could not get WPS config token from wpa_supplicant"
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sys.exit(1)
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return
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print "Touch an NFC tag"
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while True:
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tag = clf.poll()
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if tag == None:
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time.sleep(0.1)
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continue
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break
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print "Tag found - writing"
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tag.ndef.message = data
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print "Done - remove tag"
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while wait_remove and tag.is_present:
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time.sleep(0.1)
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clf.connect(rdwr={'on-connect': rdwr_connected_write})
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def wps_write_er_config_tag(clf, uuid):
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print "Write WPS ER config token"
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data = wpas_get_er_config_token(uuid)
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if (data == None):
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global write_data, write_wait_remove
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write_wait_remove = True
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write_data = wpas_get_er_config_token(uuid)
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if write_data == None:
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print "Could not get WPS config token from wpa_supplicant"
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return
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print "Touch an NFC tag"
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while True:
|
||||
tag = clf.poll()
|
||||
if tag == None:
|
||||
time.sleep(0.1)
|
||||
continue
|
||||
break
|
||||
|
||||
print "Tag found - writing"
|
||||
tag.ndef.message = data
|
||||
print "Done - remove tag"
|
||||
while tag.is_present:
|
||||
time.sleep(0.1)
|
||||
clf.connect(rdwr={'on-connect': rdwr_connected_write})
|
||||
|
||||
|
||||
def wps_write_password_tag(clf, wait_remove=True):
|
||||
print "Write WPS password token"
|
||||
data = wpas_get_password_token()
|
||||
if (data == None):
|
||||
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"
|
||||
while True:
|
||||
tag = clf.poll()
|
||||
if tag == None:
|
||||
time.sleep(0.1)
|
||||
continue
|
||||
break
|
||||
|
||||
print "Tag found - writing"
|
||||
tag.ndef.message = data
|
||||
print "Done - remove tag"
|
||||
while wait_remove and tag.is_present:
|
||||
clf.connect(rdwr={'on-connect': rdwr_connected_write})
|
||||
|
||||
|
||||
def rdwr_connected(tag):
|
||||
global only_one
|
||||
print "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:
|
||||
print "Not an NDEF tag - remove tag"
|
||||
while tag.is_present:
|
||||
time.sleep(0.1)
|
||||
return True
|
||||
|
||||
|
||||
def find_peer(clf):
|
||||
while True:
|
||||
if nfc.llcp.connected():
|
||||
print "LLCP connected"
|
||||
general_bytes = nfc.llcp.startup({})
|
||||
peer = clf.listen(ord(os.urandom(1)) + 250, general_bytes)
|
||||
if isinstance(peer, nfc.DEP):
|
||||
print "listen -> DEP";
|
||||
if peer.general_bytes.startswith("Ffm"):
|
||||
print "Found DEP"
|
||||
return peer
|
||||
print "mismatch in general_bytes"
|
||||
print peer.general_bytes
|
||||
def llcp_worker(llc):
|
||||
global arg_uuid
|
||||
if arg_uuid is None:
|
||||
wps_handover_init(llc)
|
||||
return
|
||||
|
||||
peer = clf.poll(general_bytes)
|
||||
if isinstance(peer, nfc.DEP):
|
||||
print "poll -> DEP";
|
||||
if peer.general_bytes.startswith("Ffm"):
|
||||
print "Found DEP"
|
||||
return peer
|
||||
print "mismatch in general_bytes"
|
||||
print peer.general_bytes
|
||||
global srv
|
||||
global wait_connection
|
||||
while not wait_connection and srv.sent_carrier is None:
|
||||
if srv.ho_server_processing:
|
||||
time.sleep(0.025)
|
||||
|
||||
if peer:
|
||||
print "Found tag"
|
||||
return peer
|
||||
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()
|
||||
return True
|
||||
|
||||
|
||||
def main():
|
||||
clf = nfc.ContactlessFrontend()
|
||||
|
||||
try:
|
||||
global arg_uuid
|
||||
arg_uuid = None
|
||||
if len(sys.argv) > 1 and sys.argv[1] != '-1':
|
||||
arg_uuid = sys.argv[1]
|
||||
|
||||
global only_one
|
||||
if len(sys.argv) > 1 and sys.argv[1] == '-1':
|
||||
only_one = True
|
||||
else:
|
||||
only_one = False
|
||||
|
||||
if not clf.open("usb"):
|
||||
print "Could not open connection with an NFC device"
|
||||
raise SystemExit
|
||||
|
||||
if len(sys.argv) > 1 and sys.argv[1] == "write-config":
|
||||
wps_write_config_tag(clf)
|
||||
raise SystemExit
|
||||
|
|
@ -401,34 +394,21 @@ def main():
|
|||
wps_write_password_tag(clf, wait_remove=False)
|
||||
raise SystemExit
|
||||
|
||||
while True:
|
||||
global continue_loop
|
||||
while continue_loop:
|
||||
print "Waiting for a tag or peer to be touched"
|
||||
|
||||
tag = find_peer(clf)
|
||||
if isinstance(tag, nfc.DEP):
|
||||
if arg_uuid is None:
|
||||
wps_handover_init(tag)
|
||||
elif arg_uuid is "ap":
|
||||
wps_handover_resp(tag, None)
|
||||
else:
|
||||
wps_handover_resp(tag, arg_uuid)
|
||||
if only_one:
|
||||
wait_connection = True
|
||||
try:
|
||||
if not clf.connect(rdwr={'on-connect': rdwr_connected},
|
||||
llcp={'on-startup': llcp_startup,
|
||||
'on-connect': llcp_connected}):
|
||||
break
|
||||
continue
|
||||
except Exception, e:
|
||||
print "clf.connect failed"
|
||||
|
||||
if tag.ndef:
|
||||
success = wps_tag_read(tag, not only_one)
|
||||
if only_one:
|
||||
if not success:
|
||||
sys.exit(1)
|
||||
break
|
||||
continue
|
||||
|
||||
print "Not an NDEF tag - remove tag"
|
||||
if only_one:
|
||||
sys.exit(1)
|
||||
while tag.is_present:
|
||||
time.sleep(0.1)
|
||||
global srv
|
||||
if only_one and srv and srv.success:
|
||||
raise SystemExit
|
||||
|
||||
except KeyboardInterrupt:
|
||||
raise SystemExit
|
||||
|
|
|
|||
Loading…
Reference in a new issue