--- /dev/null
+# FST tests related classes
+# Copyright (c) 2015, Qualcomm Atheros, Inc.
+#
+# This software may be distributed under the terms of the BSD license.
+# See README for more details.
+
+import logging
+import os
+import signal
+import time
+import re
+
+import hostapd
+import wpaspy
+import utils
+from wpasupplicant import WpaSupplicant
+
+import fst_test_common
+
+logger = logging.getLogger()
+
+def parse_fst_iface_event(ev):
+ """Parses FST iface event that comes as a string, e.g.
+ "<3>FST-EVENT-IFACE attached ifname=wlan9 group=fstg0"
+ Returns a dictionary with parsed "event_type", "ifname", and "group"; or
+ None if not an FST event or can't be parsed."""
+ event = {}
+ if ev.find("FST-EVENT-IFACE") == -1:
+ return None
+ if ev.find("attached") != -1:
+ event['event_type'] = 'attached'
+ elif ev.find("detached") != -1:
+ event['event_type'] = 'detached'
+ else:
+ return None
+ f = re.search("ifname=(\S+)", ev)
+ if f is not None:
+ event['ifname'] = f.group(1)
+ f = re.search("group=(\S+)", ev)
+ if f is not None:
+ event['group'] = f.group(1)
+ return event
+
+def parse_fst_session_event(ev):
+ """Parses FST session event that comes as a string, e.g.
+ "<3>FST-EVENT-SESSION event_type=EVENT_FST_SESSION_STATE session_id=0 reason=REASON_STT"
+ Returns a dictionary with parsed "type", "id", and "reason"; or None if not
+ a FST event or can't be parsed"""
+ event = {}
+ if ev.find("FST-EVENT-SESSION") == -1:
+ return None
+ event['new_state'] = '' # The field always exists in the dictionary
+ f = re.search("event_type=(\S+)", ev)
+ if f is None:
+ return None
+ event['type'] = f.group(1)
+ f = re.search("session_id=(\d+)", ev)
+ if f is not None:
+ event['id'] = f.group(1)
+ f = re.search("old_state=(\S+)", ev)
+ if f is not None:
+ event['old_state'] = f.group(1)
+ f = re.search("new_state=(\S+)", ev)
+ if f is not None:
+ event['new_state'] = f.group(1)
+ f = re.search("reason=(\S+)", ev)
+ if f is not None:
+ event['reason'] = f.group(1)
+ return event
+
+def start_two_ap_sta_pairs(apdev, rsn=False):
+ """auxiliary function that creates two pairs of APs and STAs"""
+ ap1 = FstAP(apdev[0]['ifname'], 'fst_11a', 'a',
+ fst_test_common.fst_test_def_chan_a,
+ fst_test_common.fst_test_def_group,
+ fst_test_common.fst_test_def_prio_low,
+ fst_test_common.fst_test_def_llt, rsn=rsn)
+ ap1.start()
+ ap2 = FstAP(apdev[1]['ifname'], 'fst_11g', 'g',
+ fst_test_common.fst_test_def_chan_g,
+ fst_test_common.fst_test_def_group,
+ fst_test_common.fst_test_def_prio_high,
+ fst_test_common.fst_test_def_llt, rsn=rsn)
+ ap2.start()
+
+ sta1 = FstSTA('wlan5',
+ fst_test_common.fst_test_def_group,
+ fst_test_common.fst_test_def_prio_low,
+ fst_test_common.fst_test_def_llt, rsn=rsn)
+ sta1.start()
+ sta2 = FstSTA('wlan6',
+ fst_test_common.fst_test_def_group,
+ fst_test_common.fst_test_def_prio_high,
+ fst_test_common.fst_test_def_llt, rsn=rsn)
+ sta2.start()
+
+ return ap1, ap2, sta1, sta2
+
+def stop_two_ap_sta_pairs(ap1, ap2, sta1, sta2):
+ sta1.stop()
+ sta2.stop()
+ ap1.stop()
+ ap2.stop()
+
+def connect_two_ap_sta_pairs(ap1, ap2, dev1, dev2, rsn=False):
+ """Connects a pair of stations, each one to a separate AP"""
+ dev1.scan(freq=fst_test_common.fst_test_def_freq_a)
+ dev2.scan(freq=fst_test_common.fst_test_def_freq_g)
+
+ if rsn:
+ dev1.connect(ap1, psk="12345678",
+ scan_freq=fst_test_common.fst_test_def_freq_a)
+ dev2.connect(ap2, psk="12345678",
+ scan_freq=fst_test_common.fst_test_def_freq_g)
+ else:
+ dev1.connect(ap1, key_mgmt="NONE",
+ scan_freq=fst_test_common.fst_test_def_freq_a)
+ dev2.connect(ap2, key_mgmt="NONE",
+ scan_freq=fst_test_common.fst_test_def_freq_g)
+
+def disconnect_two_ap_sta_pairs(ap1, ap2, dev1, dev2):
+ dev1.disconnect()
+ dev2.disconnect()
+
+def external_sta_connect(sta, ap, **kwargs):
+ """Connects the external station to the given AP"""
+ if not isinstance(sta, WpaSupplicant):
+ raise Exception("Bad STA object")
+ if not isinstance(ap, FstAP):
+ raise Exception("Bad AP object to connect to")
+ hap = ap.get_instance()
+ sta.connect(ap.get_ssid(), **kwargs)
+
+def disconnect_external_sta(sta, ap, check_disconnect=True):
+ """Disconnects the external station from the AP"""
+ if not isinstance(sta, WpaSupplicant):
+ raise Exception("Bad STA object")
+ if not isinstance(ap, FstAP):
+ raise Exception("Bad AP object to connect to")
+ sta.request("DISCONNECT")
+ if check_disconnect:
+ hap = ap.get_instance()
+ ev = hap.wait_event([ "AP-STA-DISCONNECTED" ], timeout=10)
+ if ev is None:
+ raise Exception("No disconnection event received from %s" % ap.get_ssid())
+
+#
+# FstDevice class
+# This is the parent class for the AP (FstAP) and STA (FstSTA) that implements
+# FST functionality.
+#
+class FstDevice:
+ def __init__(self, iface, fst_group, fst_pri, fst_llt=None, rsn=False):
+ self.iface = iface
+ self.fst_group = fst_group
+ self.fst_pri = fst_pri
+ self.fst_llt = fst_llt # None llt means no llt parameter will be set
+ self.instance = None # Hostapd/WpaSupplicant instance
+ self.peer_obj = None # Peer object, must be a FstDevice child object
+ self.new_peer_addr = None # Peer MAC address for new session iface
+ self.old_peer_addr = None # Peer MAC address for old session iface
+ self.role = 'initiator' # Role: initiator/responder
+ s = self.grequest("FST-MANAGER TEST_REQUEST IS_SUPPORTED")
+ if not s.startswith('OK'):
+ raise utils.HwsimSkip("FST not supported")
+ self.rsn = rsn
+
+ def ifname(self):
+ return self.iface
+
+ def get_instance(self):
+ """Gets the Hostapd/WpaSupplicant instance"""
+ raise Exception("Virtual get_instance() called!")
+
+ def get_own_mac_address(self):
+ """Gets the device's own MAC address"""
+ raise Exception("Virtual get_own_mac_address() called!")
+
+ def get_new_peer_addr(self):
+ return self.new_peer_addr
+
+ def get_old_peer_addr(self):
+ return self.old_peer_addr
+
+ def get_actual_peer_addr(self):
+ """Gets the peer address. A connected AP/station address is returned."""
+ raise Exception("Virtual get_actual_peer_addr() called!")
+
+ def grequest(self, req):
+ """Send request on the global control interface"""
+ raise Exception, "Virtual grequest() called!"
+
+ def wait_gevent(self, events, timeout=None):
+ """Wait for a list of events on the global interface"""
+ raise Exception("Virtual wait_gevent() called!")
+
+ def request(self, req):
+ """Issue a request to the control interface"""
+ h = self.get_instance()
+ return h.request(req)
+
+ def wait_event(self, events, timeout=None):
+ """Wait for an event from the control interface"""
+ h = self.get_instance()
+ if timeout is not None:
+ return h.wait_event(events, timeout=timeout)
+ else:
+ return h.wait_event(events)
+
+ def set_old_peer_addr(self, peer_addr=None):
+ """Sets the peer address"""
+ if peer_addr is not None:
+ self.old_peer_addr = peer_addr
+ else:
+ self.old_peer_addr = self.get_actual_peer_addr()
+
+ def set_new_peer_addr(self, peer_addr=None):
+ """Sets the peer address"""
+ if peer_addr is not None:
+ self.new_peer_addr = peer_addr
+ else:
+ self.new_peer_addr = self.get_actual_peer_addr()
+
+ def add_peer(self, obj, old_peer_addr=None, new_peer_addr=None):
+ """Add peer for FST session(s). 'obj' is a FstDevice subclass object.
+ The method must be called before add_session().
+ If peer_addr is not specified, the address of the currently connected
+ station is used."""
+ if not isinstance(obj, FstDevice):
+ raise Exception("Peer must be a FstDevice object")
+ self.peer_obj = obj
+ self.set_old_peer_addr(old_peer_addr)
+ self.set_new_peer_addr(new_peer_addr)
+
+ def get_peer(self):
+ """Returns peer object"""
+ return self.peer_obj
+
+ def set_fst_parameters(self, group_id=None, pri=None, llt=None):
+ """Change/set new FST parameters. Can be used to start FST sessions with
+ different FST parameters than defined in the configuration file."""
+ if group_id is not None:
+ self.fst_group = group_id
+ if pri is not None:
+ self.fst_pri = pri
+ if llt is not None:
+ self.fst_llt = llt
+
+ def get_local_mbies(self, ifname=None):
+ if_name = ifname if ifname is not None else self.iface
+ return self.grequest("FST-MANAGER TEST_REQUEST GET_LOCAL_MBIES " + if_name)
+
+ def add_session(self):
+ """Adds an FST session. add_peer() must be called calling this
+ function"""
+ if self.peer_obj is None:
+ raise Exception("Peer wasn't added before starting session")
+ self.dump_monitor()
+ grp = ' ' + self.fst_group if self.fst_group != '' else ''
+ sid = self.grequest("FST-MANAGER SESSION_ADD" + grp)
+ sid = sid.strip()
+ if sid.startswith("FAIL"):
+ raise Exception("Cannot add FST session with groupid ==" + grp)
+ self.dump_monitor()
+ return sid
+
+ def set_session_param(self, params):
+ request = "FST-MANAGER SESSION_SET"
+ if params is not None and params != '':
+ request = request + ' ' + params
+ return self.grequest(request)
+
+ def get_session_params(self, sid):
+ request = "FST-MANAGER SESSION_GET " + sid
+ res = self.grequest(request)
+ if res.startswith("FAIL"):
+ return None
+ params = {}
+ for i in res.splitlines():
+ p = i.split('=')
+ params[p[0]] = p[1]
+ return params
+
+ def iface_peers(self, ifname):
+ grp = self.fst_group if self.fst_group != '' else ''
+ res = self.grequest("FST-MANAGER IFACE_PEERS " + grp + ' ' + ifname)
+ if res.startswith("FAIL"):
+ return None
+ return res.splitlines()
+
+ def get_peer_mbies(self, ifname, peer_addr):
+ return self.grequest("FST-MANAGER GET_PEER_MBIES %s %s" % (ifname, peer_addr))
+
+ def list_ifaces(self):
+ grp = self.fst_group if self.fst_group != '' else ''
+ res = self.grequest("FST-MANAGER LIST_IFACES " + grp)
+ if res.startswith("FAIL"):
+ return None
+ ifaces = []
+ for i in res.splitlines():
+ p = i.split(':')
+ iface = {}
+ iface['name'] = p[0]
+ iface['priority'] = p[1]
+ iface['llt'] = p[2]
+ ifaces.append(iface)
+ return ifaces
+
+ def list_groups(self):
+ res = self.grequest("FST-MANAGER LIST_GROUPS")
+ if res.startswith("FAIL"):
+ return None
+ return res.splitlines()
+
+ def configure_session(self, sid, new_iface, old_iface = None):
+ """Calls session_set for a number of parameters some of which are stored
+ in "self" while others are passed to this function explicitly. If
+ old_iface is None, current iface is used; if old_iface is an empty
+ string."""
+ self.dump_monitor()
+ oldiface = old_iface if old_iface is not None else self.iface
+ s = self.set_session_param(sid + ' old_ifname=' + oldiface)
+ if not s.startswith("OK"):
+ raise Exception("Cannot set FST session old_ifname: " + s)
+ if new_iface is not None:
+ s = self.set_session_param(sid + " new_ifname=" + new_iface)
+ if not s.startswith("OK"):
+ raise Exception("Cannot set FST session new_ifname:" + s)
+ if self.new_peer_addr is not None and self.new_peer_addr != '':
+ s = self.set_session_param(sid + " new_peer_addr=" + self.new_peer_addr)
+ if not s.startswith("OK"):
+ raise Exception("Cannot set FST session peer address:" + s + " (new)")
+ if self.old_peer_addr is not None and self.old_peer_addr != '':
+ s = self.set_session_param(sid + " old_peer_addr=" + self.old_peer_addr)
+ if not s.startswith("OK"):
+ raise Exception("Cannot set FST session peer address:" + s + " (old)")
+ if self.fst_llt is not None and self.fst_llt != '':
+ s = self.set_session_param(sid + " llt=" + self.fst_llt)
+ if not s.startswith("OK"):
+ raise Exception("Cannot set FST session llt:" + s)
+ self.dump_monitor()
+
+ def send_iface_attach_request(self, ifname, group, llt, priority):
+ request = "FST-ATTACH " + ifname + ' ' + group
+ if llt is not None:
+ request += " llt=" + llt
+ if priority is not None:
+ request += " priority=" + priority
+ res = self.grequest(request)
+ if not res.startswith("OK"):
+ raise Exception("Cannot attach FST iface: " + res)
+
+ def send_iface_detach_request(self, ifname):
+ res = self.grequest("FST-DETACH " + ifname)
+ if not res.startswith("OK"):
+ raise Exception("Cannot detach FST iface: " + res)
+
+ def send_session_setup_request(self, sid):
+ s = self.grequest("FST-MANAGER SESSION_INITIATE " + sid)
+ if not s.startswith('OK'):
+ raise Exception("Cannot send setup request: %s" % s)
+ return s
+
+ def send_session_setup_response(self, sid, response):
+ request = "FST-MANAGER SESSION_RESPOND " + sid + " " + response
+ s = self.grequest(request)
+ if not s.startswith('OK'):
+ raise Exception("Cannot send setup response: %s" % s)
+ return s
+
+ def send_test_session_setup_request(self, fsts_id,
+ additional_parameter = None):
+ request = "FST-MANAGER TEST_REQUEST SEND_SETUP_REQUEST " + fsts_id
+ if additional_parameter is not None:
+ request += " " + additional_parameter
+ s = self.grequest(request)
+ if not s.startswith('OK'):
+ raise Exception("Cannot send FST setup request: %s" % s)
+ return s
+
+ def send_test_session_setup_response(self, fsts_id,
+ response, additional_parameter = None):
+ request = "FST-MANAGER TEST_REQUEST SEND_SETUP_RESPONSE " + fsts_id + " " + response
+ if additional_parameter is not None:
+ request += " " + additional_parameter
+ s = self.grequest(request)
+ if not s.startswith('OK'):
+ raise Exception("Cannot send FST setup response: %s" % s)
+ return s
+
+ def send_test_ack_request(self, fsts_id):
+ s = self.grequest("FST-MANAGER TEST_REQUEST SEND_ACK_REQUEST " + fsts_id)
+ if not s.startswith('OK'):
+ raise Exception("Cannot send FST ack request: %s" % s)
+ return s
+
+ def send_test_ack_response(self, fsts_id):
+ s = self.grequest("FST-MANAGER TEST_REQUEST SEND_ACK_RESPONSE " + fsts_id)
+ if not s.startswith('OK'):
+ raise Exception("Cannot send FST ack response: %s" % s)
+ return s
+
+ def send_test_tear_down(self, fsts_id):
+ s = self.grequest("FST-MANAGER TEST_REQUEST SEND_TEAR_DOWN " + fsts_id)
+ if not s.startswith('OK'):
+ raise Exception("Cannot send FST tear down: %s" % s)
+ return s
+
+ def get_fsts_id_by_sid(self, sid):
+ s = self.grequest("FST-MANAGER TEST_REQUEST GET_FSTS_ID " + sid)
+ if s == ' ' or s.startswith('FAIL'):
+ raise Exception("Cannot get fsts_id for sid == %s" % sid)
+ return int(s)
+
+ def wait_for_iface_event(self, timeout):
+ while True:
+ ev = self.wait_gevent(["FST-EVENT-IFACE"], timeout)
+ if ev is None:
+ raise Exception("No FST-EVENT-IFACE received")
+ event = parse_fst_iface_event(ev)
+ if event is None:
+ # We can't parse so it's not our event, wait for next one
+ continue
+ return event
+
+ def wait_for_session_event(self, timeout, events_to_ignore=[],
+ events_to_count=[]):
+ while True:
+ ev = self.wait_gevent(["FST-EVENT-SESSION"], timeout)
+ if ev is None:
+ raise Exception("No FST-EVENT-SESSION received")
+ event = parse_fst_session_event(ev)
+ if event is None:
+ # We can't parse so it's not our event, wait for next one
+ continue
+ if len(events_to_ignore) > 0:
+ if event['type'] in events_to_ignore:
+ continue
+ elif len(events_to_count) > 0:
+ if not event['type'] in events_to_count:
+ continue
+ return event
+
+ def initiate_session(self, sid, response="accept"):
+ """Initiates FST session with given session id 'sid'.
+ 'response' is the session respond answer: "accept", "reject", or a
+ special "timeout" value to skip the response in order to test session
+ timeouts.
+ Returns: "OK" - session has been initiated, otherwise the reason for the
+ reset: REASON_REJECT, REASON_STT."""
+ strsid = ' ' + sid if sid != '' else ''
+ s = self.grequest("FST-MANAGER SESSION_INITIATE"+ strsid)
+ if not s.startswith('OK'):
+ raise Exception("Cannot initiate fst session: %s" % s)
+ ev = self.peer_obj.wait_gevent([ "FST-EVENT-SESSION" ], timeout=5)
+ if ev is None:
+ raise Exception("No FST-EVENT-SESSION received")
+ # We got FST event
+ event = parse_fst_session_event(ev)
+ if event == None:
+ raise Exception("Unrecognized FST event: " % ev)
+ if event['type'] != 'EVENT_FST_SETUP':
+ raise Exception("Expected FST_SETUP event, got: " + event['type'])
+ ev = self.peer_obj.wait_gevent(["FST-EVENT-SESSION"], timeout=5)
+ if ev is None:
+ raise Exception("No FST-EVENT-SESSION received")
+ event = parse_fst_session_event(ev)
+ if event == None:
+ raise Exception("Unrecognized FST event: " % ev)
+ if event['type'] != 'EVENT_FST_SESSION_STATE':
+ raise Exception("Expected EVENT_FST_SESSION_STATE event, got: " + event['type'])
+ if event['new_state'] != "SETUP_COMPLETION":
+ raise Exception("Expected new state SETUP_COMPLETION, got: " + event['new_state'])
+ if response == '':
+ return 'OK'
+ if response != "timeout":
+ s = self.peer_obj.grequest("FST-MANAGER SESSION_RESPOND "+ event['id'] + " " + response) # Or reject
+ if not s.startswith('OK'):
+ raise Exception("Error session_respond: %s" % s)
+ # Wait for EVENT_FST_SESSION_STATE events. We should get at least 2
+ # events. The 1st event will be EVENT_FST_SESSION_STATE
+ # old_state=INITIAL new_state=SETUP_COMPLETED. The 2nd event will be
+ # either EVENT_FST_ESTABLISHED with the session id or
+ # EVENT_FST_SESSION_STATE with new_state=INITIAL if the session was
+ # reset, the reason field will tell why.
+ result = ''
+ while result == '':
+ ev = self.wait_gevent(["FST-EVENT-SESSION"], timeout=5)
+ if ev is None:
+ break # No session event received
+ event = parse_fst_session_event(ev)
+ if event == None:
+ # We can't parse so it's not our event, wait for next one
+ continue
+ if event['type'] == 'EVENT_FST_ESTABLISHED':
+ result = "OK"
+ break
+ elif event['type'] == "EVENT_FST_SESSION_STATE":
+ if event['new_state'] == "INITIAL":
+ # Session was reset, the only reason to get back to initial
+ # state.
+ result = event['reason']
+ break
+ if result == '':
+ raise Exception("No event for session respond")
+ return result
+
+ def transfer_session(self, sid):
+ """Transfers the session. 'sid' is the session id. 'hsta' is the
+ station-responder object.
+ Returns: REASON_SWITCH - the session has been transferred successfully
+ or a REASON_... reported by the reset event."""
+ request = "FST-MANAGER SESSION_TRANSFER"
+ self.dump_monitor()
+ if sid != '':
+ request += ' ' + sid
+ s = self.grequest(request)
+ if not s.startswith('OK'):
+ raise Exception("Cannot transfer fst session: %s" % s)
+ result = ''
+ while result == '':
+ ev = self.peer_obj.wait_gevent([ "FST-EVENT-SESSION" ], timeout=5)
+ if ev is None:
+ raise Exception("Missing session transfer event")
+ # We got FST event. We expect TRANSITION_CONFIRMED state and then
+ # INITIAL (reset) with the reason (e.g. "REASON_SWITCH").
+ # Right now we'll be waiting for the reset event and record the
+ # reason.
+ event = parse_fst_session_event(ev)
+ if event == None:
+ raise Exception("Unrecognized FST event: " % ev)
+ if event['new_state'] == 'INITIAL':
+ result = event['reason']
+ self.dump_monitor()
+ return result
+
+ def wait_for_tear_down(self):
+ ev = self.wait_gevent([ "FST-EVENT-SESSION" ], timeout=5)
+ if ev is None:
+ raise Exception("No FST-EVENT-SESSION received")
+ # We got FST event
+ event = parse_fst_session_event(ev)
+ if event == None:
+ raise Exception("Unrecognized FST event: " % ev)
+ if event['type'] != 'EVENT_FST_SESSION_STATE':
+ raise Exception("Expected EVENT_FST_SESSION_STATE event, got: " + event['type'])
+ if event['new_state'] != "INITIAL":
+ raise Exception("Expected new state INITIAL, got: " + event['new_state'])
+ if event['reason'] != 'REASON_TEARDOWN':
+ raise Exception("Expected reason REASON_TEARDOWN, got: " + event['reason'])
+
+ def teardown_session(self, sid):
+ """Tears down FST session with a given session id ('sid')"""
+ strsid = ' ' + sid if sid != '' else ''
+ s = self.grequest("FST-MANAGER SESSION_TEARDOWN" + strsid)
+ if not s.startswith('OK'):
+ raise Exception("Cannot tear down fst session: %s" % s)
+ self.peer_obj.wait_for_tear_down()
+
+
+ def remove_session(self, sid, wait_for_tear_down=True):
+ """Removes FST session with a given session id ('sid')"""
+ strsid = ' ' + sid if sid != '' else ''
+ s = self.grequest("FST-MANAGER SESSION_REMOVE" + strsid)
+ if not s.startswith('OK'):
+ raise Exception("Cannot remove fst session: %s" % s)
+ if wait_for_tear_down == True:
+ self.peer_obj.wait_for_tear_down()
+
+ def remove_all_sessions(self):
+ """Removes FST session with a given session id ('sid')"""
+ grp = ' ' + self.fst_group if self.fst_group != '' else ''
+ s = self.grequest("FST-MANAGER LIST_SESSIONS" + grp)
+ if not s.startswith('FAIL'):
+ for sid in s.splitlines():
+ sid = sid.strip()
+ if len(sid) != 0:
+ self.remove_session(sid, wait_for_tear_down=False)
+
+
+#
+# FstAP class
+#
+class FstAP (FstDevice):
+ def __init__(self, iface, ssid, mode, chan, fst_group, fst_pri,
+ fst_llt=None, rsn=False):
+ """If fst_group is empty, then FST parameters will not be set
+ If fst_llt is empty, the parameter will not be set and the default value
+ is expected to be configured."""
+ self.ssid = ssid
+ self.mode = mode
+ self.chan = chan
+ self.reg_ctrl = fst_test_common.HapdRegCtrl()
+ self.reg_ctrl.add_ap(iface, self.chan)
+ self.global_instance = hostapd.HostapdGlobal()
+ FstDevice.__init__(self, iface, fst_group, fst_pri, fst_llt, rsn)
+
+ def start(self, return_early=False):
+ """Starts AP the "standard" way as it was intended by hostapd tests.
+ This will work only when FST supports fully dynamically loading
+ parameters in hostapd."""
+ params = {}
+ params['ssid'] = self.ssid
+ params['hw_mode'] = self.mode
+ params['channel'] = self.chan
+ params['country_code'] = 'US'
+ if self.rsn:
+ params['wpa'] = '2'
+ params['wpa_key_mgmt'] = 'WPA-PSK'
+ params['rsn_pairwise'] = 'CCMP'
+ params['wpa_passphrase'] = '12345678'
+ self.hapd=hostapd.add_ap(self.iface, params)
+ if not self.hapd.ping():
+ raise Exception("Could not ping FST hostapd")
+ self.reg_ctrl.start()
+ self.get_global_instance()
+ if return_early:
+ return self.hapd
+ if len(self.fst_group) != 0:
+ self.send_iface_attach_request(self.iface, self.fst_group,
+ self.fst_llt, self.fst_pri)
+ return self.hapd
+
+ def stop(self):
+ """Removes the AP, To be used when dynamic fst APs are implemented in
+ hostapd."""
+ if len(self.fst_group) != 0:
+ self.remove_all_sessions()
+ try:
+ self.send_iface_detach_request(self.iface)
+ except Exception, e:
+ logger.info(str(e))
+ self.reg_ctrl.stop()
+ del self.global_instance
+ self.global_instance = None
+
+ def get_instance(self):
+ """Return the Hostapd/WpaSupplicant instance"""
+ if self.instance is None:
+ self.instance = hostapd.Hostapd(self.iface)
+ return self.instance
+
+ def get_global_instance(self):
+ return self.global_instance
+
+ def get_own_mac_address(self):
+ """Gets the device's own MAC address"""
+ h = self.get_instance()
+ status = h.get_status()
+ return status['bssid[0]']
+
+ def get_actual_peer_addr(self):
+ """Gets the peer address. A connected station address is returned."""
+ # Use the device instance, the global control interface doesn't have
+ # station address
+ h = self.get_instance()
+ sta = h.get_sta(None)
+ if sta is None or 'addr' not in sta:
+ # Maybe station is not connected?
+ addr = None
+ else:
+ addr=sta['addr']
+ return addr
+
+ def grequest(self, req):
+ """Send request on the global control interface"""
+ logger.debug("FstAP::grequest: " + req)
+ h = self.get_global_instance()
+ return h.request(req)
+
+ def wait_gevent(self, events, timeout=None):
+ """Wait for a list of events on the global interface"""
+ h = self.get_global_instance()
+ if timeout is not None:
+ return h.wait_event(events, timeout=timeout)
+ else:
+ return h.wait_event(events)
+
+ def get_ssid(self):
+ return self.ssid
+
+ def dump_monitor(self):
+ """Dump control interface monitor events"""
+ if self.instance:
+ self.instance.dump_monitor()
+
+#
+# FstSTA class
+#
+class FstSTA (FstDevice):
+ def __init__(self, iface, fst_group, fst_pri, fst_llt=None, rsn=False):
+ """If fst_group is empty, then FST parameters will not be set
+ If fst_llt is empty, the parameter will not be set and the default value
+ is expected to be configured."""
+ FstDevice.__init__(self, iface, fst_group, fst_pri, fst_llt, rsn)
+ self.connected = None # FstAP object the station is connected to
+
+ def start(self):
+ """Current implementation involves running another instance of
+ wpa_supplicant with fixed FST STAs configurations. When any type of
+ dynamic STA loading is implemented, rewrite the function similarly to
+ FstAP."""
+ h = self.get_instance()
+ h.interface_add(self.iface, drv_params="force_connect_cmd=1")
+ if not h.global_ping():
+ raise Exception("Could not ping FST wpa_supplicant")
+ if len(self.fst_group) != 0:
+ self.send_iface_attach_request(self.iface, self.fst_group,
+ self.fst_llt, self.fst_pri)
+ return None
+
+ def stop(self):
+ """Removes the STA. In a static (temporary) implementation does nothing,
+ the STA will be removed when the fst wpa_supplicant process is killed by
+ fstap.cleanup()."""
+ h = self.get_instance()
+ h.dump_monitor()
+ if len(self.fst_group) != 0:
+ self.remove_all_sessions()
+ self.send_iface_detach_request(self.iface)
+ h.dump_monitor()
+ h.interface_remove(self.iface)
+ h.close_ctrl()
+ del h
+ self.instance = None
+
+ def get_instance(self):
+ """Return the Hostapd/WpaSupplicant instance"""
+ if self.instance is None:
+ self.instance = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
+ return self.instance
+
+ def get_own_mac_address(self):
+ """Gets the device's own MAC address"""
+ h = self.get_instance()
+ status = h.get_status()
+ return status['address']
+
+ def get_actual_peer_addr(self):
+ """Gets the peer address. A connected station address is returned"""
+ h = self.get_instance()
+ status = h.get_status()
+ return status['bssid']
+
+ def grequest(self, req):
+ """Send request on the global control interface"""
+ logger.debug("FstSTA::grequest: " + req)
+ h = self.get_instance()
+ return h.global_request(req)
+
+ def wait_gevent(self, events, timeout=None):
+ """Wait for a list of events on the global interface"""
+ h = self.get_instance()
+ if timeout is not None:
+ return h.wait_global_event(events, timeout=timeout)
+ else:
+ return h.wait_global_event(events)
+
+ def scan(self, freq=None, no_wait=False, only_new=False):
+ """Issue Scan with given parameters. Returns the BSS dictionary for the
+ AP found (the 1st BSS found. TODO: What if the AP required is not the
+ 1st in list?) or None if no BSS found. None call be also a result of
+ no_wait=True. Note, request("SCAN_RESULTS") can be used to get all the
+ results at once."""
+ h = self.get_instance()
+ h.dump_monitor()
+ h.scan(None, freq, no_wait, only_new)
+ r = h.get_bss('0')
+ h.dump_monitor()
+ return r
+
+ def connect(self, ap, **kwargs):
+ """Connects to the given AP"""
+ if not isinstance(ap, FstAP):
+ raise Exception("Bad AP object to connect to")
+ h = self.get_instance()
+ hap = ap.get_instance()
+ h.dump_monitor()
+ h.connect(ap.get_ssid(), **kwargs)
+ h.dump_monitor()
+ self.connected = ap
+
+ def connect_to_external_ap(self, ap, ssid, check_connection=True, **kwargs):
+ """Connects to the given external AP"""
+ if not isinstance(ap, hostapd.Hostapd):
+ raise Exception("Bad AP object to connect to")
+ h = self.get_instance()
+ h.dump_monitor()
+ h.connect(ssid, **kwargs)
+ self.connected = ap
+ if check_connection:
+ ev = ap.wait_event([ "AP-STA-CONNECTED" ], timeout=10)
+ if ev is None:
+ self.connected = None
+ raise Exception("No connection event received from %s" % ssid)
+ h.dump_monitor()
+
+ def disconnect(self, check_disconnect=True):
+ """Disconnects from the AP the station is currently connected to"""
+ if self.connected is not None:
+ h = self.get_instance()
+ h.dump_monitor()
+ h.request("DISCONNECT")
+ if check_disconnect:
+ hap = self.connected.get_instance()
+ ev = hap.wait_event([ "AP-STA-DISCONNECTED" ], timeout=10)
+ if ev is None:
+ raise Exception("No disconnection event received from %s" % self.connected.get_ssid())
+ h.dump_monitor()
+ self.connected = None
+
+
+ def disconnect_from_external_ap(self, check_disconnect=True):
+ """Disconnects from the external AP the station is currently connected
+ to"""
+ if self.connected is not None:
+ h = self.get_instance()
+ h.dump_monitor()
+ h.request("DISCONNECT")
+ if check_disconnect:
+ hap = self.connected
+ ev = hap.wait_event([ "AP-STA-DISCONNECTED" ], timeout=10)
+ if ev is None:
+ raise Exception("No disconnection event received from AP")
+ h.dump_monitor()
+ self.connected = None
+
+ def dump_monitor(self):
+ """Dump control interface monitor events"""
+ if self.instance:
+ self.instance.dump_monitor()
projects / mech_eap.git / blobdiff