Add security enhancement for OCPP 1.6

This commit adds support for the security enhancements in OCPP 1.6
as defined by the OCA[0]

[0]: https://www.openchargealliance.org/news/enhanced-security-for-ocpp-16/

Author: villekr

.gitignore

@@ -105,3 +105,6 @@ venv.bak/
 .mypy_cache/
 
 .idea/*
+
+### OSX ###
+*.DS_Store

ocpp/v16/call.py

@@ -13,6 +13,9 @@
     Reason,
     ResetType,
     UpdateType,
+    CertificateUse,
+    Log,
+    UploadLogStatus,
 )
 
 # Most types of CALL messages can originate from only 1 source, either
@@ -38,6 +41,11 @@ class CancelReservationPayload:
     reservation_id: int
 
 
+@dataclass
+class CertificateSignedPayload:
+    certificate_chain: str
+
+
 @dataclass
 class ChangeAvailabilityPayload:
     connector_id: int
@@ -63,6 +71,17 @@ class ClearChargingProfilePayload:
     stack_level: Optional[int] = None
 
 
+@dataclass
+class DeleteCertificatePayload:
+    certificate_hash_data: Dict
+
+
+@dataclass
+class ExtendedTriggerMessagePayload:
+    requested_message: MessageTrigger
+    connector_id: Optional[int] = None
+
+
 @dataclass
 class GetCompositeSchedulePayload:
     connector_id: int
@@ -84,11 +103,31 @@ class GetDiagnosticsPayload:
     stop_time: Optional[str] = None
 
 
+@dataclass
+class GetInstalledCertificateIdsPayload:
+    certificate_type: CertificateUse
+
+
 @dataclass
 class GetLocalListVersionPayload:
     pass
 
 
+@dataclass
+class GetLogPayload:
+    log: Dict
+    log_type: Log
+    request_id: int
+    retries: Optional[int] = None
+    retry_interval: Optional[int] = None
+
+
+@dataclass
+class InstallCertificatePayload:
+    certificate_type: CertificateUse
+    certificate: str
+
+
 @dataclass
 class RemoteStartTransactionPayload:
     id_tag: str
@@ -128,6 +167,14 @@ class SetChargingProfilePayload:
     cs_charging_profiles: Dict
 
 
+@dataclass
+class SignedUpdateFirmwarePayload:
+    request_id: int
+    firmware: Dict
+    retries: Optional[int] = None
+    retry_interval: Optional[int] = None
+
+
 @dataclass
 class TriggerMessagePayload:
     requested_message: MessageTrigger
@@ -183,13 +230,37 @@ class HeartbeatPayload:
     pass
 
 
+@dataclass
+class LogStatusNotificationPayload:
+    status: UploadLogStatus
+    request_id: int
+
+
 @dataclass
 class MeterValuesPayload:
     connector_id: int
     meter_value: List = field(default_factory=list)
     transaction_id: Optional[int] = None
 
 
+@dataclass
+class SecurityEventNotificationPayload:
+    type: str
+    timestamp: str
+    tech_info: Optional[str]
+
+
+@dataclass
+class SignCertificatePayload:
+    csr: str
+
+
+@dataclass
+class SignedFirmwareStatusNotificationPayload:
+    status: FirmwareStatus
+    request_id: int
+
+
 @dataclass
 class StartTransactionPayload:
     connector_id: int

ocpp/v16/call_result.py

@@ -16,6 +16,13 @@
     TriggerMessageStatus,
     UpdateStatus,
     UnlockStatus,
+    CertificateSignedStatus,
+    CertificateStatus,
+    DeleteCertificateStatus,
+    GenericStatus,
+    GetInstalledCertificateStatus,
+    LogStatus,
+    UpdateFirmwareStatus
 )
 
 # Most types of CALLRESULT messages can originate from only 1 source, either
@@ -63,6 +70,21 @@ class HeartbeatPayload:
     current_time: str
 
 
+@dataclass
+class LogStatusNotificationPayload:
+    pass
+
+
+@dataclass
+class SecurityEventNotificationPayload:
+    pass
+
+
+@dataclass
+class SignCertificatePayload:
+    status: GenericStatus
+
+
 @dataclass
 class MeterValuesPayload:
     pass
@@ -93,6 +115,11 @@ class CancelReservationPayload:
     status: CancelReservationStatus
 
 
+@dataclass
+class CertificateSignedPayload:
+    status: CertificateSignedStatus
+
+
 @dataclass
 class ChangeAvailabilityPayload:
     status: AvailabilityStatus
@@ -113,6 +140,22 @@ class ClearChargingProfilePayload:
     status: ClearChargingProfileStatus
 
 
+@dataclass
+class DeleteCertificatePayload:
+    status: DeleteCertificateStatus
+
+
+@dataclass
+class ExtendedTriggerMessagePayload:
+    status: TriggerMessageStatus
+
+
+@dataclass
+class GetInstalledCertificateIdsPayload:
+    status: GetInstalledCertificateStatus
+    certificate_hash_data: Optional[List] = None
+
+
 @dataclass
 class GetCompositeSchedulePayload:
     status: GetCompositeScheduleStatus
@@ -137,6 +180,17 @@ class GetLocalListVersionPayload:
     list_version: int
 
 
+@dataclass
+class GetLogPayload:
+    status: LogStatus
+    filename: Optional[str] = None
+
+
+@dataclass
+class InstallCertificatePayload:
+    status: CertificateStatus
+
+
 @dataclass
 class RemoteStartTransactionPayload:
     status: RemoteStartStopStatus
@@ -167,6 +221,16 @@ class SetChargingProfilePayload:
     status: ChargingProfileStatus
 
 
+@dataclass
+class SignedFirmwareStatusNotificationPayload:
+    pass
+
+
+@dataclass
+class SignedUpdateFirmwarePayload:
+    status: UpdateFirmwareStatus
+
+
 @dataclass
 class TriggerMessagePayload:
     status: TriggerMessageStatus