daemon: removed usages of getattr and hasattr where possible

daemon/core/api/grpc/grpcutils.py

@@ -25,7 +25,9 @@ from core.emulator.session import Session
 from core.errors import CoreError
 from core.location.mobility import BasicRangeModel, Ns2ScriptedMobility
 from core.nodes.base import CoreNode, CoreNodeBase, NodeBase
+from core.nodes.docker import DockerNode
 from core.nodes.interface import CoreInterface
+from core.nodes.lxd import LxcNode
 from core.nodes.network import WlanNode
 from core.services.coreservices import CoreService
 
@@ -264,19 +266,22 @@ def get_node_proto(session: Session, node: NodeBase) -> core_pb2.Node:
     geo = core_pb2.Geo(
         lat=node.position.lat, lon=node.position.lon, alt=node.position.alt
     )
-    services = getattr(node, "services", [])
+    services = [x.name for x in node.services]
-    if services is None:
+    model = node.type
-        services = []
+    node_dir = None
-    services = [x.name for x in services]
+    config_services = []
-    config_services = getattr(node, "config_services", {})
+    if isinstance(node, CoreNodeBase):
-    config_services = [x for x in config_services]
+        node_dir = node.nodedir
+        config_services = [x for x in node.config_services]
+    channel = None
+    if isinstance(node, CoreNode):
+        channel = node.ctrlchnlname
     emane_model = None
     if isinstance(node, EmaneNet):
         emane_model = node.model.name
-    model = getattr(node, "type", None)
+    image = None
-    node_dir = getattr(node, "nodedir", None)
+    if isinstance(node, (DockerNode, LxcNode)):
-    channel = getattr(node, "ctrlchnlname", None)
+        image = node.image
-    image = getattr(node, "image", None)
     return core_pb2.Node(
         id=node.id,
         name=node.name,

daemon/core/configservices/frrservices/services.py

@@ -103,8 +103,7 @@ class FRRZebra(ConfigService):
                 ip4s.append(str(ip4.ip))
             for ip6 in iface.ip6s:
                 ip6s.append(str(ip6.ip))
-            is_control = getattr(iface, "control", False)
+            ifaces.append((iface, ip4s, ip6s, iface.control))
-            ifaces.append((iface, ip4s, ip6s, is_control))
 
         return dict(
             frr_conf=frr_conf,

daemon/core/configservices/quaggaservices/services.py

@@ -104,8 +104,7 @@ class Zebra(ConfigService):
                 ip4s.append(str(ip4.ip))
             for ip6 in iface.ip6s:
                 ip6s.append(str(ip6.ip))
-            is_control = getattr(iface, "control", False)
+            ifaces.append((iface, ip4s, ip6s, iface.control))
-            ifaces.append((iface, ip4s, ip6s, is_control))
 
         return dict(
             quagga_bin_search=quagga_bin_search,

daemon/core/nodes/base.py

@@ -159,7 +159,7 @@ class NodeBase(abc.ABC):
         ifaces = []
         for iface_id in sorted(self.ifaces):
             iface = self.ifaces[iface_id]
-            if not control and getattr(iface, "control", False):
+            if not control and iface.control:
                 continue
             ifaces.append(iface)
         return ifaces

daemon/core/nodes/interface.py

@@ -73,6 +73,7 @@ class CoreInterface:
         self.net_client: LinuxNetClient = get_net_client(
             self.session.use_ovs(), self.host_cmd
         )
+        self.control: bool = False
 
     def host_cmd(
         self,

daemon/core/services/frr.py

@@ -66,7 +66,7 @@ class FRRZebra(CoreService):
         for iface in node.get_ifaces():
             cfg += "interface %s\n" % iface.name
             # include control interfaces in addressing but not routing daemons
-            if hasattr(iface, "control") and iface.control is True:
+            if iface.control:
                 cfg += "  "
                 cfg += "\n  ".join(map(cls.addrstr, iface.ips()))
                 cfg += "\n"

daemon/core/services/quagga.py

@@ -63,7 +63,7 @@ class Zebra(CoreService):
         for iface in node.get_ifaces():
             cfg += "interface %s\n" % iface.name
             # include control interfaces in addressing but not routing daemons
-            if getattr(iface, "control", False):
+            if iface.control:
                 cfg += "  "
                 cfg += "\n  ".join(map(cls.addrstr, iface.ips()))
                 cfg += "\n"

daemon/core/services/utility.py

@@ -581,7 +581,7 @@ if [ "x$1" = "xstart" ]; then
 
 """
         for iface in node.get_ifaces():
-            if hasattr(iface, "control") and iface.control is True:
+            if iface.control:
                 cfg += "# "
             redir = "< /dev/null"
             cfg += "tcpdump ${DUMPOPTS} -w %s.%s.pcap -i %s %s &\n" % (

daemon/core/xml/corexml.py

@@ -13,7 +13,7 @@ from core.errors import CoreXmlError
 from core.nodes.base import CoreNodeBase, NodeBase
 from core.nodes.docker import DockerNode
 from core.nodes.lxd import LxcNode
-from core.nodes.network import CtrlNet, WlanNode
+from core.nodes.network import CtrlNet, GreTapBridge, WlanNode
 from core.services.coreservices import CoreService
 
 if TYPE_CHECKING:
@@ -253,15 +253,13 @@ class DeviceElement(NodeElement):
 class NetworkElement(NodeElement):
     def __init__(self, session: "Session", node: NodeBase) -> None:
         super().__init__(session, node, "network")
-        model = getattr(self.node, "model", None)
+        if isinstance(self.node, (WlanNode, EmaneNet)):
-        if model:
+            if self.node.model:
-            add_attribute(self.element, "model", model.name)
+                add_attribute(self.element, "model", self.node.model.name)
-        mobility = getattr(self.node, "mobility", None)
+            if self.node.mobility:
-        if mobility:
+                add_attribute(self.element, "mobility", self.node.mobility.name)
-            add_attribute(self.element, "mobility", mobility.name)
+        if isinstance(self.node, GreTapBridge):
-        grekey = getattr(self.node, "grekey", None)
+            add_attribute(self.element, "grekey", self.node.grekey)
-        if grekey and grekey is not None:
-            add_attribute(self.element, "grekey", grekey)
         self.add_type()
 
     def add_type(self) -> None: