def ssid(self, ssid):
""" Set the ssid. """
if ssid == SSID(b'\0'):
self._ssid = None
else:
self._ssid = ssid
def _handle_status_vap(self, wtp, status):
"""Handle an incoming STATUS_VAP message.
Args:
status, a STATUS_VAP message
Returns:
None
"""
bssid = EtherAddress(status.bssid)
ssid = SSID(status.ssid)
tenant = RUNTIME.load_tenant(ssid)
if not tenant:
self.log.info("VAP %s from unknown tenant %s", bssid, ssid)
return
# Check if block is valid
valid = wtp.get_block(status.hwaddr, status.channel, status.band)
if not valid:
self.log.warning("No valid intersection found. Removing VAP.")
wtp.connection.send_del_vap(bssid)
return
# If the VAP does not exists, then create a new one
if bssid not in tenant.vaps:
vap = VAP(bssid, valid, tenant)
tenant.vaps[bssid] = vap
vap = tenant.vaps[bssid]
self.log.info("VAP status %s", vap)
def _handle_status_vap(cls, wtp, status):
"""Handle an incoming STATUS_VAP message.
Args:
status, a STATUS_VAP message
Returns:
None
"""
if not wtp.connection:
LOG.info("VAP Status from disconnected WTP %s", wtp.addr)
return
net_bssid_addr = EtherAddress(status.net_bssid)
ssid = SSID(status.ssid)
tenant = RUNTIME.load_tenant(ssid)
if not tenant:
LOG.info("VAP %s from unknown tenant %s", net_bssid_addr, ssid)
return
incoming = ResourceBlock(wtp, EtherAddress(status.hwaddr),
status.channel, status.band)
LOG.info("VAP status update from %s", net_bssid_addr)
# If the VAP does not exists, then create a new one
if net_bssid_addr not in tenant.vaps:
vap = VAP(net_bssid_addr, incoming, wtp, tenant)
tenant.vaps[net_bssid_addr] = vap
vap = tenant.vaps[net_bssid_addr]
LOG.info("VAP status %s", vap)
def _handle_status_slice(self, wtp, status):
"""Handle an incoming STATUS_SLICE message.
Args:
status, a STATUS_SLICE message
Returns:
None
"""
dscp = DSCP(status.dscp)
ssid = SSID(status.ssid)
tenant = RUNTIME.load_tenant(ssid)
if not tenant:
self.log.info("Slice status from unknown tenant %s", ssid)
return
# Check if block is valid
valid = wtp.get_block(status.hwaddr, status.channel, status.band)
if not valid:
self.log.warning("No valid intersection found.")
return
# check if slice is valid
if dscp not in tenant.slices:
self.log.warning("DSCP %s not found. Removing slice.", dscp)
self.send_del_slice(valid[0], ssid, dscp)
return
slc = tenant.slices[dscp]
if slc.wifi['static-properties']['quantum'] != status.quantum:
if wtp.addr not in slc.wifi['wtps']:
slc.wifi['wtps'][wtp.addr] = {'static-properties': {}}
slc.wifi['wtps'][wtp.addr]['static-properties']['quantum'] = \
status.quantum
if slc.wifi['static-properties']['amsdu_aggregation'] != \
bool(status.flags.amsdu_aggregation):
if wtp.addr not in slc.wifi['wtps']:
slc.wifi['wtps'][wtp.addr] = {'static-properties': {}}
slc.wifi['wtps'][wtp.addr]['static-properties'] \
['amsdu_aggregation'] = bool(status.flags.amsdu_aggregation)
if slc.wifi['static-properties']['scheduler'] != status.scheduler:
if wtp.addr not in slc.wifi['wtps']:
slc.wifi['wtps'][wtp.addr] = {'static-properties': {}}
slc.wifi['wtps'][wtp.addr]['static-properties']['scheduler'] = \
status.scheduler
self.log.info("Slice %s updated", slc)
def send_add_lvap(self, lvap, block, set_mask):
"""Send a ADD_LVAP message."""
flags = Container(authenticated=lvap.authentication_state,
associated=lvap.association_state,
set_mask=set_mask)
encap = EtherAddress("00:00:00:00:00:00")
if lvap.encap:
encap = lvap.encap
bssid = EtherAddress()
if lvap.bssid:
bssid = lvap.bssid
ssid = SSID()
if lvap.ssid:
ssid = lvap.ssid
msg = Container(length=78,
flags=flags,
assoc_id=lvap.assoc_id,
module_id=get_xid(),
hwaddr=block.hwaddr.to_raw(),
channel=block.channel,
band=block.band,
supported_band=lvap.supported_band,
sta=lvap.addr.to_raw(),
encap=encap.to_raw(),
bssid=bssid.to_raw(),
ssid=ssid.to_raw(),
networks=[])
for network in lvap.networks:
msg.length = msg.length + 6 + WIFI_NWID_MAXSIZE + 1
msg.networks.append(
Container(bssid=network[0].to_raw(), ssid=network[1].to_raw()))
xid = self.send_message(PT_ADD_LVAP, msg)
lvap.pending.append(xid)
def _handle_status_vap(cls, status):
"""Handle an incoming STATUS_VAP message.
Args:
status, a STATUS_VAP message
Returns:
None
"""
wtp_addr = EtherAddress(status.wtp)
try:
wtp = RUNTIME.wtps[wtp_addr]
except KeyError:
LOG.info("VAP Status from unknown WTP %s", wtp_addr)
return
if not wtp.connection:
LOG.info("VAP Status from disconnected WTP %s", wtp_addr)
return
net_bssid_addr = EtherAddress(status.net_bssid)
ssid = SSID(status.ssid)
tenant_id = None
for tenant in RUNTIME.tenants.values():
if tenant.tenant_name == ssid:
tenant_id = tenant.tenant_id
break
if not tenant_id:
LOG.info("VAP %s from unknown tenant %s", net_bssid_addr, ssid)
return
tenant = RUNTIME.tenants[tenant_id]
vap = None
hwaddr = EtherAddress(status.hwaddr)
block = ResourceBlock(wtp, hwaddr, status.channel, status.band)
ssid = status.ssid
LOG.info("VAP %s status update block %s", net_bssid_addr, block)
# If the VAP does not exists, then create a new one
if net_bssid_addr not in tenant.vaps:
tenant.vaps[net_bssid_addr] = \
VAP(net_bssid_addr, block, wtp, tenant)
vap = tenant.vaps[net_bssid_addr]
LOG.info("VAP status %s", vap)
def _handle_status_traffic_rule(self, wtp, status):
"""Handle an incoming STATUS_TRAFFIC_RULE message.
Args:
status, a STATUS_TRAFFIC_RULE message
Returns:
None
"""
if not wtp.connection:
LOG.info("Traffic rule status from disconnected WTP %s", wtp.addr)
return
quantum = status.quantum
amsdu_aggregation = bool(status.flags.amsdu_aggregation)
dscp = "{0:#0{1}x}".format(status.dscp, 4)
ssid = SSID(status.ssid)
tenant = RUNTIME.load_tenant(ssid)
if not tenant:
LOG.info("Traffic rule status from unknown tenant %s", ssid)
return
incoming = ResourceBlock(wtp, EtherAddress(status.hwaddr),
status.channel, status.band)
valid = [block for block in self.wtp.supports if block == incoming]
if not valid:
LOG.warning("No valid intersection found. Ignoring request.")
return
block = valid[0]
trq = block.traffic_rule_queues[(ssid, dscp)]
trq._quantum = quantum
trq._amsdu_aggregation = amsdu_aggregation
LOG.info("Transmission rule status %s", trq)
def post(self, *args, **kwargs):
""" Create a new tenant.
Args:
None
Request:
version: protocol version (1.0)
owner: the username of the requester
tenant_id: the network name
desc: a description for the new tenant
bssid_type: shared or unique
Example URLs:
POST /api/v1/tenants
"""
try:
if len(args) > 1:
raise ValueError("Invalid url")
request = tornado.escape.json_decode(self.request.body)
if "version" not in request:
raise ValueError("missing version element")
if "owner" not in request:
raise ValueError("missing owner element")
if "desc" not in request:
raise ValueError("missing desc element")
if "tenant_name" not in request:
raise ValueError("missing tenant_name element")
if "bssid_type" not in request:
bssid_type = T_TYPE_UNIQUE
else:
bssid_type = request['bssid_type']
if bssid_type not in T_TYPES:
raise ValueError("invalid bssid_type %s" % bssid_type)
if len(args) == 1:
tenant_id = UUID(args[0])
else:
tenant_id = None
tenant_name = SSID(request['tenant_name'])
RUNTIME.add_tenant(request['owner'], request['desc'], tenant_name,
bssid_type, tenant_id)
self.set_header("Location", "/api/v1/tenants/%s" % tenant_id)
except ValueError as ex:
self.send_error(400, message=ex)
except KeyError as ex:
self.send_error(404, message=ex)
self.set_status(201, None)
def _handle_status_lvap(self, status):
"""Handle an incoming STATUS_LVAP message.
Args:
status, a STATUS_LVAP message
Returns:
None
"""
wtp_addr = EtherAddress(status.wtp)
try:
wtp = RUNTIME.wtps[wtp_addr]
except KeyError:
LOG.info("Status from unknown WTP %s", wtp_addr)
return
if not wtp.connection:
LOG.info("Status from disconnected WTP %s", wtp_addr)
return
sta_addr = EtherAddress(status.sta)
set_mask = bool(status.flags.set_mask)
lvap = None
hwaddr = EtherAddress(status.hwaddr)
block = ResourceBlock(wtp, hwaddr, status.channel, status.band)
LOG.info("LVAP status update from %s", sta_addr)
# If the LVAP does not exists, then create a new one
if sta_addr not in RUNTIME.lvaps:
net_bssid_addr = EtherAddress(status.net_bssid)
lvap_bssid_addr = EtherAddress(status.lvap_bssid)
lvap = LVAP(sta_addr, net_bssid_addr, lvap_bssid_addr)
# TODO: This should be built starting from the status message
lvap.supports.add(ResourceBlock(lvap, sta_addr, 1, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 2, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 3, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 4, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 5, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 6, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 7, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 8, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 9, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 10, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 11, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 36, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta_addr, 48, BT_L20))
RUNTIME.lvaps[sta_addr] = lvap
lvap = RUNTIME.lvaps[sta_addr]
# incoming block
pool = ResourcePool()
pool.add(block)
match = wtp.supports & pool
if not match:
LOG.error("Incoming block %s is invalid", block)
return
block = match.pop()
# this will try to updated the lvap object with the resource block
# coming in this status update message.
try:
if set_mask:
# set downlink+uplink block
lvap._downlink.setitem(block, RadioPort(lvap, block))
else:
# set uplink only blocks
lvap._uplink.setitem(block, RadioPort(lvap, block))
except ValueError:
LOG.error("Error while importing block %s, removing.", block)
block.radio.connection.send_del_lvap(lvap)
return
lvap.authentication_state = bool(status.flags.authenticated)
lvap.association_state = bool(status.flags.associated)
lvap._assoc_id = status.assoc_id
lvap._encap = EtherAddress(status.encap)
ssids = [SSID(x.ssid) for x in status.ssids]
if lvap.ssid:
# Raise LVAP leave event
LOG.info("LVAP LEAVE %s (%s)", lvap.addr, lvap.ssid)
for handler in self.server.pt_types_handlers[PT_LVAP_LEAVE]:
handler(lvap)
# removing LVAP from tenant, need first to look for right tenant
if lvap.addr in lvap.tenant.lvaps:
LOG.info("Removing %s from tenant %s", lvap.addr, lvap.ssid)
del lvap.tenant.lvaps[lvap.addr]
lvap._tenant = None
if ssids[0]:
# setting tenant without seding out add lvap message
lvap._tenant = RUNTIME.load_tenant(ssids[0])
# adding LVAP to tenant
LOG.info("Adding %s to tenant %s", lvap.addr, ssids[0])
lvap.tenant.lvaps[lvap.addr] = lvap
# Raise LVAP join event
LOG.info("LVAP JOIN %s (%s)", lvap.addr, lvap.ssid)
for handler in self.server.pt_types_handlers[PT_LVAP_JOIN]:
handler(lvap)
# update remaining ssids
lvap._ssids = ssids[1:]
# set ports
lvap.set_ports()
LOG.info("LVAP status %s", lvap)
def _handle_status_lvap(self, wtp, status):
"""Handle an incoming STATUS_LVAP message.
Args:
status, a STATUS_LVAP message
Returns:
None
"""
sta = EtherAddress(status.sta)
# Check if block is valid
valid = wtp.get_block(status.hwaddr, status.channel, status.band)
if not valid:
self.log.warning("No valid intersection found. Removing block.")
wtp.connection.send_del_lvap(sta)
return
# If the LVAP does not exists, then create a new one
if sta not in RUNTIME.lvaps:
RUNTIME.lvaps[sta] = LVAP(sta,
assoc_id=status.assoc_id,
state=PROCESS_RUNNING)
lvap = RUNTIME.lvaps[sta]
# update LVAP params
lvap.supported_band = status.supported_band
lvap.encap = EtherAddress(status.encap)
lvap.authentication_state = bool(status.flags.authenticated)
lvap.association_state = bool(status.flags.associated)
ssid = SSID(status.ssid)
if ssid == SSID():
ssid = None
bssid = EtherAddress(status.bssid)
if bssid == EtherAddress("00:00:00:00:00:00"):
bssid = None
lvap.bssid = bssid
set_mask = status.flags.set_mask
# received downlink block but a different downlink block is already
# present, delete before going any further
if set_mask and lvap.blocks[0] and lvap.blocks[0] != valid[0]:
lvap.blocks[0].radio.connection.send_del_lvap(sta)
if set_mask:
lvap._downlink = valid[0]
else:
lvap._uplink.append(valid[0])
# if this is not a DL+UL block then stop here
if not set_mask:
return
# if an SSID is set and the incoming SSID is different from the
# current one then raise an LVAP leave event and remove LVAP from the
# current SSID
if lvap.ssid and ssid != lvap.ssid:
self.server.send_lvap_leave_message_to_self(lvap)
del lvap.tenant.lvaps[lvap.addr]
lvap.ssid = None
# if the incoming ssid is not none then raise an lvap join event
if ssid:
lvap.ssid = ssid
lvap.tenant.lvaps[lvap.addr] = lvap
self.server.send_lvap_join_message_to_self(lvap)
# udpate networks
networks = list()
for network in status.networks:
incoming = (EtherAddress(network.bssid), SSID(network.ssid))
networks.append(incoming)
lvap.networks = networks
self.log.info("LVAP status %s", lvap)
def _handle_status_lvap(self, wtp, status):
"""Handle an incoming STATUS_LVAP message.
Args:
status, a STATUS_LVAP message
Returns:
None
"""
if not wtp.connection:
LOG.info("Status from disconnected WTP %s", wtp.addr)
return
sta = EtherAddress(status.sta)
set_mask = bool(status.flags.set_mask)
lvap = None
accum = []
incoming_ssids = [SSID(x.ssid) for x in status.ssids]
accum.append("addr ")
accum.append(EtherAddress(status.sta).to_str())
accum.append(" net_bssid ")
accum.append(EtherAddress(status.net_bssid).to_str())
accum.append(" lvap_bssid ")
accum.append(EtherAddress(status.lvap_bssid).to_str())
accum.append(" ssid ")
if incoming_ssids[0]:
accum.append(incoming_ssids[0].to_str())
else:
accum.append("None")
accum.append(" ssids [")
for ssid in incoming_ssids[1:]:
accum.append(" ")
accum.append(ssid.to_str())
accum.append(" ]")
accum.append(" assoc_id ")
accum.append(str(status.assoc_id))
if bool(status.flags.authenticated):
accum.append(" AUTH")
if bool(status.flags.associated):
accum.append(" ASSOC")
LOG.info("LVAP status %s", ''.join(accum))
# If the LVAP does not exists, then create a new one
if sta not in RUNTIME.lvaps:
net_bssid_addr = EtherAddress(status.net_bssid)
lvap_bssid_addr = EtherAddress(status.lvap_bssid)
lvap = LVAP(sta, net_bssid_addr, lvap_bssid_addr)
RUNTIME.lvaps[sta] = lvap
lvap = RUNTIME.lvaps[sta]
# Check if block is valid
incoming = ResourceBlock(wtp, EtherAddress(status.hwaddr),
status.channel, status.band)
valid = [block for block in wtp.supports if block == incoming]
if not valid:
LOG.warning("No valid intersection found. Removing block.")
wtp.connection.send_del_lvap(lvap)
return
# this will try to updated the lvap object with the resource block
# coming in this status update message.
try:
if set_mask:
# set downlink+uplink block
lvap._downlink.setitem(valid[0], RadioPort(lvap, valid[0]))
else:
# set uplink only blocks
lvap._uplink.setitem(valid[0], RadioPort(lvap, valid[0]))
except Exception as e:
LOG.exception(e)
LOG.error("Error while importing block %s, removing.", valid[0])
wtp.connection.send_del_lvap(lvap)
return
# update LVAP ports
lvap.ports[0] = VirtualPortLvap(phy_port=wtp.port(),
virtual_port_id=0,
lvap=lvap)
# set supported band
lvap.supported_band = status.supported_band
# update LVAP params
lvap.authentication_state = bool(status.flags.authenticated)
lvap.association_state = bool(status.flags.associated)
lvap._assoc_id = status.assoc_id
lvap._encap = EtherAddress(status.encap)
ssids = [SSID(x.ssid) for x in status.ssids]
# update ssid
if lvap.ssid:
# Raise LVAP leave event
self.server.send_lvap_leave_message_to_self(lvap)
# removing LVAP from tenant, need first to look for right tenant
if lvap.addr in lvap.tenant.lvaps:
LOG.info("Removing %s from tenant %s", lvap.addr, lvap.ssid)
del lvap.tenant.lvaps[lvap.addr]
lvap._tenant = None
# update remaining ssids
lvap._ssids = ssids[1:]
if ssids[0]:
tenant = RUNTIME.load_tenant(ssids[0])
if not tenant:
LOG.info("LVAP %s from unknown tenant %s", lvap.addr, ssids[0])
RUNTIME.remove_lvap(lvap.addr)
return
# setting tenant without seding out add lvap message
lvap._tenant = tenant
# adding LVAP to tenant
LOG.info("Adding %s to tenant %s", lvap.addr, ssids[0])
lvap.tenant.lvaps[lvap.addr] = lvap
# Raise LVAP join event
self.server.send_lvap_join_message_to_self(lvap)
def _handle_probe_request(self, wtp, request):
"""Handle an incoming PROBE_REQUEST message.
Args:
request, a PROBE_REQUEST message
Returns:
None
"""
if not wtp.connection:
LOG.info("Probe request from disconnected WTP %s", wtp.addr)
self.stream.close()
return
if not wtp.port():
LOG.info("WTP %s not ready", wtp.addr)
return
sta = EtherAddress(request.sta)
if sta in RUNTIME.lvaps:
return
if not RUNTIME.is_allowed(sta):
return
if RUNTIME.is_denied(sta):
return
ssid = SSID(request.ssid)
if request.ssid == b'':
LOG.info("Probe request from %s ssid %s", sta, "Broadcast")
else:
LOG.info("Probe request from %s ssid %s", sta, ssid)
# generate list of available SSIDs
ssids = set()
for tenant in RUNTIME.tenants.values():
if tenant.bssid_type == T_TYPE_SHARED:
continue
for wtp_in_tenant in tenant.wtps.values():
if wtp.addr == wtp_in_tenant.addr:
ssids.add(tenant.tenant_name)
if not ssids:
LOG.info("No SSIDs available at this WTP")
return
# spawn new LVAP
LOG.info("Spawning new LVAP %s on %s", sta, wtp.addr)
net_bssid = generate_bssid(BASE_MAC, sta)
lvap = LVAP(sta, net_bssid, net_bssid)
lvap.set_ssids(list(ssids))
# set supported band
lvap.supported_band = request.supported_band
# Check if block is valid
incoming = ResourceBlock(wtp, EtherAddress(request.hwaddr),
request.channel, request.band)
valid = [block for block in wtp.supports if block == incoming]
if not valid:
LOG.warning("No valid intersection found. Ignoring request.")
return
# This will trigger an LVAP ADD message (and REMOVE if necessary)
lvap.blocks = valid[0]
# save LVAP in the runtime
RUNTIME.lvaps[sta] = lvap
LOG.info("Sending probe response to %s", lvap.addr)
self.send_probe_response(lvap, ssid)
def _handle_status_lvap(self, wtp, status):
"""Handle an incoming STATUS_LVAP message.
Args:
status, a STATUS_LVAP message
Returns:
None
"""
if not wtp.connection:
LOG.info("Status from disconnected WTP %s", wtp.addr)
return
sta_addr = EtherAddress(status.sta)
set_mask = bool(status.flags.set_mask)
lvap = None
LOG.info("LVAP status update from %s", sta_addr)
# If the LVAP does not exists, then create a new one
if sta_addr not in RUNTIME.lvaps:
net_bssid_addr = EtherAddress(status.net_bssid)
lvap_bssid_addr = EtherAddress(status.lvap_bssid)
lvap = LVAP(sta_addr, net_bssid_addr, lvap_bssid_addr)
RUNTIME.lvaps[sta_addr] = lvap
lvap = RUNTIME.lvaps[sta_addr]
# incoming block
lvap.supported = ResourcePool()
hwaddr = EtherAddress(status.hwaddr)
channel = status.channel
band = status.band
lvap.supported.add(ResourceBlock(lvap, hwaddr, channel, band))
match = wtp.supports & lvap.supported
if not match:
LOG.error("Incoming block %s is invalid", block)
return
block = match.pop()
# this will try to updated the lvap object with the resource block
# coming in this status update message.
try:
if set_mask:
# set downlink+uplink block
lvap._downlink.setitem(block, RadioPort(lvap, block))
else:
# set uplink only blocks
lvap._uplink.setitem(block, RadioPort(lvap, block))
except ValueError:
LOG.error("Error while importing block %s, removing.", block)
block.radio.connection.send_del_lvap(lvap)
return
lvap.authentication_state = bool(status.flags.authenticated)
lvap.association_state = bool(status.flags.associated)
lvap._assoc_id = status.assoc_id
lvap._encap = EtherAddress(status.encap)
ssids = [SSID(x.ssid) for x in status.ssids]
if lvap.ssid:
# Raise LVAP leave event
self.server.send_lvap_leave_message_to_self(lvap)
# removing LVAP from tenant, need first to look for right tenant
if lvap.addr in lvap.tenant.lvaps:
LOG.info("Removing %s from tenant %s", lvap.addr, lvap.ssid)
del lvap.tenant.lvaps[lvap.addr]
lvap._tenant = None
if ssids[0]:
tenant = RUNTIME.load_tenant(ssids[0])
if not tenant:
LOG.info("LVAP %s from unknown tenant %s", lvap.addr, ssids[0])
RUNTIME.remove_lvap(lvap.addr)
return
# setting tenant without seding out add lvap message
lvap._tenant = tenant
# adding LVAP to tenant
LOG.info("Adding %s to tenant %s", lvap.addr, ssids[0])
lvap.tenant.lvaps[lvap.addr] = lvap
# Raise LVAP join event
self.server.send_lvap_join_message_to_self(lvap)
# update remaining ssids
lvap._ssids = ssids[1:]
# set ports
lvap.set_ports()
LOG.info("LVAP status %s", lvap)
def _handle_probe_request(self, wtp, request):
"""Handle an incoming PROBE_REQUEST message.
Args:
request, a PROBE_REQUEST message
Returns:
None
"""
if not wtp.connection:
LOG.info("Probe request from disconnected WTP %s", wtp.addr)
self.stream.close()
return
if not wtp.port():
LOG.info("WTP %s not ready", wtp.addr)
return
sta = EtherAddress(request.sta)
if sta in RUNTIME.lvaps:
return
if not RUNTIME.is_allowed(sta):
return
if RUNTIME.is_denied(sta):
return
ssid = SSID(request.ssid)
if request.ssid == b'':
LOG.info("Probe request from %s ssid %s", sta, "Broadcast")
else:
LOG.info("Probe request from %s ssid %s", sta, ssid)
# generate list of available SSIDs
ssids = set()
for tenant in RUNTIME.tenants.values():
if tenant.bssid_type == T_TYPE_SHARED:
continue
for wtp_in_tenant in tenant.wtps.values():
if wtp.addr == wtp_in_tenant.addr:
ssids.add(tenant.tenant_name)
if not ssids:
LOG.info("No SSIDs available at this WTP")
return
# spawn new LVAP
LOG.info("Spawning new LVAP %s on %s", sta, wtp.addr)
net_bssid = generate_bssid(BASE_MAC, sta)
lvap = LVAP(sta, net_bssid, net_bssid)
lvap.set_ssids(list(ssids))
RUNTIME.lvaps[sta] = lvap
# This will trigger an LVAP ADD message (and REMOVE if necessary)
lvap.supported = ResourcePool()
hwaddr = EtherAddress(request.hwaddr)
channel = request.channel
band = request.band
lvap.supported.add(ResourceBlock(lvap, hwaddr, channel, band))
lvap.scheduled_on = wtp.supports & lvap.supported
LOG.info("Sending probe response to %s", lvap.addr)
self.send_probe_response(lvap)
def post(self, *args, **kwargs):
""" Create a new tenant request.
Args:
None
Request:
version: protocol version (1.0)
owner: the username of the requester
tenant_id: the network name
desc: a description for the new tenant
bssid_type: shared or unique
Example URLs:
POST /api/v1/pending
"""
try:
if len(args) > 1:
raise ValueError("Invalid url")
request = tornado.escape.json_decode(self.request.body)
if "version" not in request:
raise ValueError("missing version element")
if "desc" not in request:
raise ValueError("missing desc element")
if "tenant_name" not in request:
raise ValueError("missing tenant_name element")
bssid_type = T_TYPE_UNIQUE
if "bssid_type" in request:
bssid_type = request['bssid_type']
# If PLMN ID is not given, default it to 000000 value
plmn_id = 000000
if "plmn_id" in request and request['plmn_id'] != None and \
(len(request['plmn_id']) == 5 or len(request['plmn_id']) == 6):
plmn_id = int(request['plmn_id'])
if len(args) == 1:
tenant_id = UUID(args[0])
else:
tenant_id = None
tenant_name = SSID(request['tenant_name'])
RUNTIME.request_tenant(self.account.username, request['desc'],
tenant_name, bssid_type, tenant_id, plmn_id)
self.set_header("Location", "/api/v1/pendig/%s" % tenant_id)
except KeyError as ex:
self.send_error(404, message=ex)
except ValueError as ex:
self.send_error(400, message=ex)
self.set_status(201, None)
def _handle_probe_request(self, wtp, request):
"""Handle an incoming PROBE_REQUEST message.
Args:
request, a PROBE_REQUEST message
Returns:
None
"""
# Check if block is valid
valid = wtp.get_block(request.hwaddr, request.channel, request.band)
if not valid:
self.log.warning("No valid intersection found. Ignoring request.")
return
# check is station is in ACL
sta = EtherAddress(request.sta)
if not RUNTIME.is_allowed(sta):
return
# Requested BSSID
incoming_ssid = SSID(request.ssid)
if incoming_ssid == b'':
self.log.info("Probe request from %s ssid %s", sta, "Broadcast")
else:
self.log.info("Probe request from %s ssid %s", sta, incoming_ssid)
# generate list of available networks
networks = list()
for tenant in RUNTIME.tenants.values():
if tenant.bssid_type == T_TYPE_SHARED:
continue
for wtp_in_tenant in tenant.wtps.values():
if wtp.addr == wtp_in_tenant.addr:
bssid = tenant.generate_bssid(sta)
ssid = tenant.tenant_name
networks.append((bssid, ssid))
if not networks:
self.log.info("No Networks available at this WTP")
return
# If lvap does not exist then create it. Otherwise just refresh list
# of networks
if sta not in RUNTIME.lvaps:
# spawn new LVAP
self.log.info("Spawning new LVAP %s on %s", sta, wtp.addr)
assoc_id = RUNTIME.assoc_id()
lvap = LVAP(sta, assoc_id=assoc_id)
lvap.networks = networks
lvap.supported_band = request.supported_band
# this will trigger an LVAP ADD message
lvap.blocks = valid[0]
# save LVAP in the runtime
RUNTIME.lvaps[sta] = lvap
# Send probe response
self.send_probe_response(lvap, incoming_ssid)
return
# Update networks
lvap = RUNTIME.lvaps[sta]
lvap.networks = networks
lvap.commit()
# Send probe response
if lvap.wtp == wtp:
self.send_probe_response(lvap, incoming_ssid)
def _handle_assoc_request(self, wtp, request):
"""Handle an incoming ASSOC_REQUEST message.
Args:
request, a ASSOC_REQUEST message
Returns:
None
"""
sta = EtherAddress(request.sta)
if sta not in RUNTIME.lvaps:
self.log.info("Assoc request from unknown LVAP %s", sta)
return
lvap = RUNTIME.lvaps[sta]
incoming_bssid = EtherAddress(request.bssid)
if lvap.bssid != incoming_bssid:
self.log.info("Assoc request for invalid BSSID %s", incoming_bssid)
return
incoming_ssid = SSID(request.ssid)
# Check if the requested SSID is from a unique tenant
for tenant in RUNTIME.tenants.values():
if tenant.bssid_type == T_TYPE_SHARED:
continue
bssid = tenant.generate_bssid(lvap.addr)
if bssid != incoming_bssid:
self.log.info("Invalid BSSID %s", incoming_bssid)
continue
if tenant.tenant_name == incoming_ssid:
lvap.bssid = incoming_bssid
lvap.authentication_state = True
lvap.association_state = True
lvap.ssid = incoming_ssid
lvap.supported_band = request.supported_band
lvap.commit()
self.send_assoc_response(lvap)
return
# Check if the requested SSID is from a unique tenant
for tenant in RUNTIME.tenants.values():
if tenant.bssid_type == T_TYPE_UNIQUE:
continue
if incoming_bssid not in tenant.vaps:
self.log.info("Invalid BSSID %s", incoming_bssid)
continue
ssid = tenant.vaps[incoming_bssid].ssid
if ssid == incoming_ssid:
lvap.bssid = incoming_bssid
lvap.authentication_state = True
lvap.association_state = True
lvap.ssid = incoming_ssid
lvap.supported_band = request.supported_band
lvap.commit()
self.send_assoc_response(lvap)
return
self.log.info("Unable to find SSID %s", incoming_ssid)
def _handle_probe_request(self, request):
"""Handle an incoming PROBE_REQUEST message.
Args:
request, a PROBE_REQUEST message
Returns:
None
"""
wtp_addr = EtherAddress(request.wtp)
try:
wtp = RUNTIME.wtps[wtp_addr]
except KeyError:
LOG.info("Probe request from unknown WTP (%s)", wtp_addr)
return
if not wtp.connection:
LOG.info("Probe request from disconnected WTP %s", wtp_addr)
return
sta = EtherAddress(request.sta)
if sta in RUNTIME.lvaps:
return
if not RUNTIME.is_allowed(sta):
return
if RUNTIME.is_denied(sta):
return
ssid = SSID(request.ssid)
if request.ssid == b'':
LOG.info("Probe request from %s ssid %s", sta, "Broadcast")
else:
LOG.info("Probe request from %s ssid %s", sta, ssid)
# generate list of available SSIDs
ssids = set()
for tenant in RUNTIME.tenants.values():
if tenant.bssid_type == T_TYPE_SHARED:
continue
for wtp_in_tenant in tenant.wtps.values():
if wtp_addr == wtp_in_tenant.addr:
ssids.add(tenant.tenant_name)
if not ssids:
LOG.info("No SSIDs available at this WTP")
return
# spawn new LVAP
LOG.info("Spawning new LVAP %s on %s", sta, wtp.addr)
net_bssid = generate_bssid(BASE_MAC, sta)
lvap = LVAP(sta, net_bssid, net_bssid)
lvap.set_ssids(ssids)
RUNTIME.lvaps[sta] = lvap
# TODO: This should be built starting from the probe request
lvap.supports.add(ResourceBlock(lvap, sta, 1, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 2, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 3, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 4, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 5, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 6, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 7, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 8, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 9, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 10, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 11, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 36, BT_L20))
lvap.supports.add(ResourceBlock(lvap, sta, 48, BT_L20))
# This will trigger an LVAP ADD message (and REMOVE if necessary)
requested = ResourcePool()
hwaddr = EtherAddress(request.hwaddr)
channel = request.channel
band = request.band
requested.add(ResourceBlock(wtp, hwaddr, channel, band))
lvap.scheduled_on = wtp.supports & requested
LOG.info("Sending probe response to %s", lvap.addr)
self.send_probe_response(lvap)
def _handle_assoc_request(self, request):
"""Handle an incoming ASSOC_REQUEST message.
Args:
request, a ASSOC_REQUEST message
Returns:
None
"""
wtp_addr = EtherAddress(request.wtp)
try:
wtp = RUNTIME.wtps[wtp_addr]
except KeyError:
LOG.info("Assoc request from unknown WTP %s", wtp_addr)
return
if not wtp.connection:
LOG.info("Assoc request from disconnected WTP %s", wtp_addr)
return
sta = EtherAddress(request.sta)
if sta not in RUNTIME.lvaps:
LOG.info("Assoc request from unknown LVAP %s", sta)
return
lvap = RUNTIME.lvaps[sta]
if not RUNTIME.is_allowed(sta):
LOG.info("Assoc request from %s ignored (white list)", sta)
return
if RUNTIME.is_denied(sta):
LOG.info("Assoc request from %s ignored (black list)", sta)
return
ssid = SSID(request.ssid.decode('UTF-8'))
bssid = EtherAddress(request.bssid)
tenant_name = None
# look for ssid in shared tenants
for tenant_id in RUNTIME.tenants:
tenant = RUNTIME.tenants[tenant_id]
if tenant.bssid_type == T_TYPE_UNIQUE:
continue
if bssid in tenant.vaps and ssid == tenant.tenant_name:
tenant_name = tenant.tenant_name
# otherwise this must be the lvap unique bssid
if lvap.net_bssid == bssid and ssid in lvap.ssids:
tenant_name = ssid
if not tenant_name:
LOG.info("Assoc request sta %s for ssid %s bssid %s, ignoring",
lvap.addr, lvap.ssid, lvap.lvap_bssid)
return
# this will trigger an add lvap message to update the ssid
lvap.tenant = RUNTIME.load_tenant(tenant_name)
# this will trigger an add lvap message to update the assoc id
lvap.assoc_id = self.server.assoc_id
LOG.info("Assoc request sta %s ssid %s bssid %s assoc id %u, replying",
lvap.addr, lvap.ssid, lvap.lvap_bssid, lvap.assoc_id)
self.send_assoc_response(lvap)
def _handle_status_lvap(self, wtp, status):
"""Handle an incoming STATUS_LVAP message.
Args:
status, a STATUS_LVAP message
Returns:
None
"""
if not wtp.connection:
LOG.info("Status from disconnected WTP %s", wtp.addr)
return
sta = EtherAddress(status.sta)
set_mask = bool(status.flags.set_mask)
lvap = None
accum = []
incoming_ssids = [SSID(x.ssid) for x in status.ssids]
accum.append("addr ")
accum.append(EtherAddress(status.sta).to_str())
accum.append(" net_bssid ")
accum.append(EtherAddress(status.net_bssid).to_str())
accum.append(" lvap_bssid ")
accum.append(EtherAddress(status.lvap_bssid).to_str())
accum.append(" ssid ")
if incoming_ssids[0]:
accum.append(incoming_ssids[0].to_str())
else:
accum.append("None")
accum.append(" ssids [")
for ssid in incoming_ssids[1:]:
accum.append(" ")
accum.append(ssid.to_str())
accum.append(" ]")
accum.append(" assoc_id ")
accum.append(str(status.assoc_id))
if bool(status.flags.authenticated):
accum.append(" AUTH")
if bool(status.flags.associated):
accum.append(" ASSOC")
LOG.info("LVAP status %s", ''.join(accum))
# If the LVAP does not exists, then create a new one
if sta not in RUNTIME.lvaps:
net_bssid_addr = EtherAddress(status.net_bssid)
lvap_bssid_addr = EtherAddress(status.lvap_bssid)
lvap = LVAP(sta, net_bssid_addr, lvap_bssid_addr)
RUNTIME.lvaps[sta] = lvap
lvap = RUNTIME.lvaps[sta]
# Check if block is valid
incoming = ResourceBlock(wtp, EtherAddress(status.hwaddr),
status.channel, status.band)
valid = [block for block in wtp.supports if block == incoming]
if not valid:
LOG.warning("No valid intersection found. Removing block.")
wtp.connection.send_del_lvap(lvap)
return
# received downlink block but a different downlink block is already
# present, delete before going any further
if set_mask and lvap._downlink and lvap._downlink != valid[0]:
lvap._downlink.radio.connection.send_del_lvap(lvap)
if set_mask:
lvap._downlink = valid[0]
else:
lvap._uplink.append(valid[0])
# update ports
if not lvap.ports:
lvap.ports[0] = VirtualPort(virtual_port_id=0)
lvap.ports[0].poas.append(wtp.port())
# set supported band
lvap._supported_band = status.supported_band
# update LVAP params
lvap.authentication_state = bool(status.flags.authenticated)
lvap.association_state = bool(status.flags.associated)
lvap._assoc_id = status.assoc_id
lvap._encap = EtherAddress(status.encap)
ssids = [SSID(x.ssid) for x in status.ssids]
# update ssid
if lvap.ssid:
# Raise LVAP leave event
self.server.send_lvap_leave_message_to_self(lvap)
# removing LVAP from tenant, need first to look for right tenant
if lvap.addr in lvap.tenant.lvaps:
LOG.info("Removing %s from tenant %s", lvap.addr, lvap.ssid)
del lvap.tenant.lvaps[lvap.addr]
lvap._tenant = None
# update remaining ssids
lvap._ssids = ssids[1:]
if ssids[0]:
tenant = RUNTIME.load_tenant(ssids[0])
if not tenant:
LOG.info("LVAP %s from unknown tenant %s", lvap.addr, ssids[0])
RUNTIME.remove_lvap(lvap.addr)
return
# setting tenant without seding out add lvap message
lvap._tenant = tenant
# adding LVAP to tenant
LOG.info("Adding %s to tenant %s", lvap.addr, ssids[0])
lvap.tenant.lvaps[lvap.addr] = lvap
# Raise LVAP join event
self.server.send_lvap_join_message_to_self(lvap)