def test_aare_sets_ready_on_waiting_aare_response():
s = state.DlmsConnectionState(current_state=state.AWAITING_ASSOCIATION_RESPONSE)
s.process_event(
acse.ApplicationAssociationResponseApdu(
enumerations.AssociationResult.ACCEPTED,
result_source_diagnostics=enumerations.AcseServiceUserDiagnostics.NULL,
)
)
assert s.current_state == state.READY
def test_no_ciher_hls_ok(self):
data = bytes.fromhex(
"6142A109060760857405080101A203020100A305A10302010E88020780890760857405080205AA0A8008503677524A323146BE10040E0800065F1F040000501F01F40007"
)
aare = acse.ApplicationAssociationResponseApdu(
result=enumerations.AssociationResult.ACCEPTED,
result_source_diagnostics=enumerations.AcseServiceUserDiagnostics.AUTHENTICATION_REQUIRED,
ciphered=False,
authentication=enumerations.AuthenticationMechanism.HLS_GMAC,
public_cert=None,
system_title=None,
authentication_value=b"P6wRJ21F",
user_information=UserInformation(
content=InitiateResponseApdu(
negotiated_conformance=Conformance(
general_protection=False,
general_block_transfer=False,
delta_value_encoding=False,
attribute_0_supported_with_set=False,
priority_management_supported=True,
attribute_0_supported_with_get=False,
block_transfer_with_get_or_read=True,
block_transfer_with_set_or_write=False,
block_transfer_with_action=False,
multiple_references=False,
data_notification=False,
access=False,
get=True,
set=True,
selective_access=True,
event_notification=True,
action=True,
),
server_max_receive_pdu_size=500,
negotiated_dlms_version_number=6,
negotiated_quality_of_service=0,
)
),
implementation_information=None,
responding_ap_invocation_id=None,
responding_ae_invocation_id=None,
)
assert aare.to_bytes() == data
def test_no_ciphering_no_security_app_context_name_wrong(self):
data = bytes.fromhex(
"6129A109060760857405080101A203020101A305A103020102BE10040E0800065F1F040000501F01F40007"
)
aare = acse.ApplicationAssociationResponseApdu(
result=enumerations.AssociationResult.REJECTED_PERMANENT,
result_source_diagnostics=enumerations.AcseServiceUserDiagnostics.APPLICATION_CONTEXT_NAME_NOT_SUPPORTED,
ciphered=False,
authentication=None,
system_title=None,
public_cert=None,
authentication_value=None,
user_information=acse.UserInformation(
content=InitiateResponseApdu(
negotiated_conformance=Conformance(
general_protection=False,
general_block_transfer=False,
delta_value_encoding=False,
attribute_0_supported_with_set=False,
priority_management_supported=True,
attribute_0_supported_with_get=False,
block_transfer_with_get_or_read=True,
block_transfer_with_set_or_write=False,
block_transfer_with_action=False,
multiple_references=False,
data_notification=False,
access=False,
get=True,
set=True,
selective_access=True,
event_notification=True,
action=True,
),
server_max_receive_pdu_size=500,
negotiated_dlms_version_number=6,
negotiated_quality_of_service=0,
)
),
implementation_information=None,
responding_ap_invocation_id=None,
responding_ae_invocation_id=None,
)
assert aare.to_bytes() == data
def test_negotiated_conformance_is_updated():
c = DlmsConnection(client_system_title=b"12345678")
c.send(c.get_aarq())
c.receive_data(
acse.ApplicationAssociationResponseApdu(
result=enumerations.AssociationResult.ACCEPTED,
result_source_diagnostics=enumerations.AcseServiceUserDiagnostics.
NULL,
user_information=acse.UserInformation(
content=xdlms.InitiateResponseApdu(
negotiated_conformance=Conformance(
general_protection=True, general_block_transfer=True),
server_max_receive_pdu_size=500,
)),
).to_bytes())
c.next_event()
assert c.conformance.general_protection
assert c.conformance.general_block_transfer
assert c.max_pdu_size == 500
assert c.state.current_state == state.READY
def aare():
from dlms_cosem import enumerations
from dlms_cosem.protocol import acse
from dlms_cosem.protocol.xdlms import Conformance, InitiateResponseApdu
return acse.ApplicationAssociationResponseApdu(
result=enumerations.AssociationResult.ACCEPTED,
result_source_diagnostics=enumerations.AcseServiceUserDiagnostics.NULL,
ciphered=False,
authentication=None,
system_title=None,
public_cert=None,
authentication_value=None,
user_information=acse.UserInformation(content=InitiateResponseApdu(
negotiated_conformance=Conformance(
general_protection=False,
general_block_transfer=False,
delta_value_encoding=False,
attribute_0_supported_with_set=False,
priority_management_supported=True,
attribute_0_supported_with_get=False,
block_transfer_with_get_or_read=True,
block_transfer_with_set_or_write=False,
block_transfer_with_action=False,
multiple_references=False,
data_notification=False,
access=False,
get=True,
set=True,
selective_access=True,
event_notification=True,
action=True,
),
server_max_receive_pdu_size=500,
negotiated_dlms_version_number=6,
negotiated_quality_of_service=0,
)),
implementation_information=None,
responding_ap_invocation_id=None,
responding_ae_invocation_id=None,
)
def test_no_cipher_no_security_incorrect_dlms_version(self):
data = bytes.fromhex(
"611FA109060760857405080101A203020101A305A103020101BE0604040E010601"
)
aare = acse.ApplicationAssociationResponseApdu(
result=enumerations.AssociationResult.REJECTED_PERMANENT,
result_source_diagnostics=enumerations.AcseServiceUserDiagnostics.NO_REASON_GIVEN,
ciphered=False,
authentication=None,
system_title=None,
public_cert=None,
authentication_value=None,
user_information=acse.UserInformation(
content=ConfirmedServiceErrorApdu(
error=enumerations.InitiateError.DLMS_VERSION_TOO_LOW
)
),
implementation_information=None,
responding_ap_invocation_id=None,
responding_ae_invocation_id=None,
)
assert aare.to_bytes() == data