Added the correct code to configure the ACL rule in the service to block cryptomining attacks

src/l3_attackmitigator/service/l3_attackmitigatorServiceServicerImpl.py

@@ -32,6 +32,12 @@ from common.proto.context_pb2 import (
 from common.proto.context_pb2_grpc import ContextServiceStub
 from common.proto.service_pb2_grpc import ServiceServiceStub
 
+from common.proto.acl_pb2 import AclForwardActionEnum, AclLogActionEnum, AclRuleTypeEnum
+from common.proto.context_pb2 import ConfigActionEnum, Service, ServiceId
+from common.tools.grpc.Tools import grpc_message_to_json_string
+from context.client.ContextClient import ContextClient
+from service.client.ServiceClient import ServiceClient
+
 LOGGER = logging.getLogger(__name__)
 CONTEXT_CHANNEL = "192.168.165.78:1010"
 SERVICE_CHANNEL = "192.168.165.78:3030"
@@ -43,6 +49,7 @@ class l3_attackmitigatorServiceServicerImpl(L3AttackmitigatorServicer):
 
         self.last_value = -1
         self.last_tag = 0
+        self.sequence_id = 0
 
     def GenerateRuleValue(self, ip_o, ip_d, port_o, port_d):
         value = {
@@ -84,6 +91,76 @@ class l3_attackmitigatorServiceServicerImpl(L3AttackmitigatorServicer):
 
         return config_rule
 
+    def configure_acl_rule(
+        self,
+        context_uuid: str,
+        service_uuid: str,
+        device_uuid: str,
+        endpoint_uuid: str,
+        src_ip: str,
+        dst_ip: str,
+        src_port: str,
+        dst_port: str,
+    ) -> None:
+        # Create ServiceId
+        service_id = ServiceId()
+        service_id.context_id.context_uuid.uuid = context_uuid
+        service_id.service_uuid.uuid = service_uuid
+
+        # Get service form Context
+        context_client = ContextClient()
+
+        try:
+            _service: Service = context_client.GetService(service_id)
+        except:
+            raise Exception("Service({:s}) not found".format(grpc_message_to_json_string(service_id)))
+
+        # _service is read-only; copy it to have an updatable service message
+        service_request = Service()
+        service_request.CopyFrom(_service)
+
+        # Add ACL ConfigRule into the service service_request
+        acl_config_rule = service_request.service_config.config_rules.add()
+        acl_config_rule.action = ConfigActionEnum.CONFIGACTION_SET
+
+        # Set EndpointId associated to the ACLRuleSet
+        acl_endpoint_id = acl_config_rule.acl.endpoint_id
+        acl_endpoint_id.device_id.device_uuid.uuid = device_uuid
+        acl_endpoint_id.endpoint_uuid.uuid = endpoint_uuid
+
+        # Set RuleSet for this ACL ConfigRule
+        acl_rule_set = acl_config_rule.acl.rule_set
+        # TODO: update the following parameters; for instance, add them as parameters of the method configure_acl_rule
+        acl_rule_set.name = "DROP-HTTPS"
+        acl_rule_set.type = AclRuleTypeEnum.ACLRULETYPE_IPV4
+        acl_rule_set.description = "DROP undesired HTTPS traffic"
+
+        # Add ACLEntry to the ACLRuleSet
+        acl_entry = acl_rule_set.entries.add()
+        acl_entry.sequence_id = self.sequence_id
+        acl_entry.description = "DROP-{src_ip}:{src_port}-{dst_ip}:{dst_port}".format(
+            src_ip=src_ip, src_port=src_port, dst_ip=dst_ip, dst_port=dst_port
+        )
+        acl_entry.match.protocol = (
+            6  # TCP according to https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
+        )
+        acl_entry.match.src_address = "{}/32".format(src_ip)
+        acl_entry.match.dst_address = "{}/32".format(dst_ip)
+        acl_entry.match.src_port = src_port
+        acl_entry.match.dst_port = dst_port
+        # TODO: update the following parameters; for instance, add them as parameters of the method configure_acl_rule
+        acl_entry.action.forward_action = AclForwardActionEnum.ACLFORWARDINGACTION_DROP
+        acl_entry.action.log_action = AclLogActionEnum.ACLLOGACTION_NOLOG
+
+        # Update the Service with the new ACL RuleSet
+        service_client = ServiceClient()
+        service_reply: ServiceId = service_client.UpdateService(service_request)
+
+        # TODO: Log the service_reply details
+
+        if service_reply != service_request.service_id:  # pylint: disable=no-member
+            raise Exception("Service update failed. Wrong ServiceId was returned")
+
     def SendOutput(self, request, context):
         last_value = request.confidence
         last_tag = request.tag
@@ -103,7 +180,7 @@ class l3_attackmitigatorServiceServicerImpl(L3AttackmitigatorServicer):
         counter = 0
         service_id = request.service_id
 
-        LOGGER.info("Service id:\n{}".format(service_id))
+        LOGGER.info("ServiceId:\n{}".format(service_id))
 
         while sentinel:
             try:
@@ -114,19 +191,32 @@ class l3_attackmitigatorServiceServicerImpl(L3AttackmitigatorServicer):
                 LOGGER.debug("Waiting 2 seconds", counter, e)
                 time.sleep(2)
 
-        LOGGER.info("Service obtained from id:\n{}".format(service))
+        LOGGER.info("Service obtained from ServiceId:\n{}".format(service))
 
+        # Old version
         config_rule = self.GetConfigRule(ip_o, ip_d, port_o, port_d)
 
         service_config = ServiceConfig()
         service_config.config_rules.extend([config_rule])
         service.service_config.CopyFrom(service_config)
 
+        # New version
+        # self.configure_acl_rule(
+        #     context_uuid=service_id.context_id.context_uuid.uuid,
+        #     service_uuid=service_id.service_uuid.uuid,
+        #     device_uuid=request.device_id.device_uuid.uuid,
+        #     endpoint_uuid=request.endpoint_id.endpoint_uuid.uuid,
+        #     src_ip=ip_o,
+        #     dst_ip=ip_d,
+        #     src_port=port_o,
+        #     dst_port=port_d,
+        # )
+
         LOGGER.info("Service with new rule:\n{}".format(service))
         self.UpdateService(service)
 
         service2 = self.GetService(service_id)
-        LOGGER.info("Service obtained from id after updating:\n{}".format(service2))
+        LOGGER.info("Service obtained from ServiceId after updating with the new rule:\n{}".format(service2))
 
         return Empty(message=f"OK, received values: {last_tag} with confidence {last_value}.")