def test_request_refused_due_to_source_cid_already_allocated_responder(self):
"""
Verify that an IUT receiving an LE Credit Based Connection Request for a second channel will refuse the connection with result "0x000A - Connection refused – Source CID already allocated" if it receives a Source CID which is already in use.
"""
self._setup_link_from_cert()
(dut_channel, cert_channel) = self._open_channel_from_cert(psm=0x33, scid=0x0101)
self.dut_l2cap.register_coc(self.cert_address, psm=0x35)
self.cert_l2cap.get_control_channel().send(
l2cap_packets.LeCreditBasedConnectionRequestBuilder(2, 0x35, 0x0101, 1000, 1000, 1000))
assertThat(self.cert_l2cap.get_control_channel()).emits(L2capMatchers.CreditBasedConnectionResponseUsedCid())
def open_channel_with_expected_result(
self,
psm=0x33,
result=LeCreditBasedConnectionResponseResult.SUCCESS):
self.control_channel.send(
l2cap_packets.LeCreditBasedConnectionRequestBuilder(
1, psm, 0x40, 1000, 100, 6))
response = L2capMatchers.CreditBasedConnectionResponse(result)
assertThat(self.control_channel).emits(response)
def test_credit_based_connection_request_unsupported_le_psm(self):
"""
Verify that an IUT receiving an LE Credit Based Connection Request on an unsupported LE_PSM will respond with an LE Credit Based Connection Response refusing the connection.
"""
self._setup_link_from_cert()
self.cert_l2cap.get_control_channel().send(
l2cap_packets.LeCreditBasedConnectionRequestBuilder(1, 0x34, 0x0101, 2000, 1000, 1000))
assertThat(self.cert_l2cap.get_control_channel()).emits(
L2capMatchers.CreditBasedConnectionResponse(
result=LeCreditBasedConnectionResponseResult.LE_PSM_NOT_SUPPORTED))
def open_channel(self,
signal_id,
psm,
scid,
mtu=1000,
mps=100,
initial_credit=6):
self.control_channel.send(
l2cap_packets.LeCreditBasedConnectionRequestBuilder(
signal_id, psm, scid, mtu, mps, initial_credit))
response = L2capCaptures.CreditBasedConnectionResponse()
assertThat(self.control_channel).emits(response)
channel = CertLeL2capChannel(self._device, scid,
response.get().GetDestinationCid(),
self._get_acl_stream(), self._le_acl,
self.control_channel,
response.get().GetInitialCredits())
self._cid_to_cert_channels[scid] = channel
return channel