def __init__(self, db, adapter=0, encryption=False, random=None):
self.stack = BTStack(adapter=adapter)
self.att = ATT_Protocol(self.stack, GATT_Server(db), encryption)
self.sm = SM()
self.smp = SM_Protocol(self.stack, self.sm)
if random is not None:
self.stack.set_random_address(random)
self.sm.ra = ''.join(
map(lambda x: chr(int(x, 16)), random.split(':')))
self.sm.ra_type = 1
else:
self.sm.ra = self.stack.addr
self.sm.ra_type = 0
class LE_Peripheral:
def __init__(self, db, adapter=0, encryption=False, random=None):
self.stack = BTStack(adapter=adapter)
self.att = ATT_Protocol(self.stack, GATT_Server(db), encryption)
self.sm = SM()
self.smp = SM_Protocol(self.stack, self.sm)
if random is not None:
self.stack.set_random_address(random)
self.sm.ra = ''.join(
map(lambda x: chr(int(x, 16)), random.split(':')))
self.sm.ra_type = 1
else:
self.sm.ra = self.stack.addr
self.sm.ra_type = 0
def run(self):
while True:
# select here to play nice with gevent
r, _, _ = select([self.stack], [], [])
if len(r) == 0:
continue
p = self.stack.s.recv()
if p.type == 2: # ACL data
if p.cid == 4: # GATT
self.att.marshall_request(p)
elif p.cid == 6: # SM
self.smp.marshall_command(p)
# LE meta event
elif p.code == 0x3e:
# LTK request
if p.event == 5:
handle = p.handle
if self.sm.ltk is None:
log.info("Sending LTK Negative reply")
self.stack.send_ltk_nak(handle)
else:
log.info("Sending LTK")
self.stack.send_ltk_reply(self.sm.ltk[::-1], handle)
# encryption change, send LTK and EDIV
elif p.code == 8:
# TODO check that we actually are changing to encrypted
self.att.encrypted = True