Linux: Fix ruff errors

Author: ikelos

volatility3/framework/plugins/linux/netfilter.py

@@ -204,9 +204,11 @@ def _run(self) -> Iterator[Tuple[int, str, str, int, int, str, bool]]:
             module_name [str]: Linux kernel module name
             hooked [bool]: "True" if the network stack has been hijacked
         """
-        for netns, net in self.get_net_namespaces():
+        for netns, network in self.get_net_namespaces():
             for proto_idx, proto_name, hook_idx, hook_name in self._proto_hook_loop():
-                hooks_container = self.get_hooks_container(net, proto_name, hook_name)
+                hooks_container = self.get_hooks_container(
+                    network, proto_name, hook_name
+                )
 
                 for hook_container in hooks_container:
                     for hook_ops in self.get_hook_ops(
@@ -311,9 +313,9 @@ def get_net_namespaces(self):
         """
         nethead = self.vmlinux.object_from_symbol("net_namespace_list")
         symbol_net_name = self.get_symbol_fullname("net")
-        for net in nethead.to_list(symbol_net_name, "list"):
-            net_ns_id = net.ns.inum
-            yield net_ns_id, net
+        for network in nethead.to_list(symbol_net_name, "list"):
+            net_ns_id = network.ns.inum
+            yield net_ns_id, network
 
     def get_hooks_container(self, net, proto_name, hook_name):
         """Returns the data structure used in a specific kernel implementation to store

volatility3/framework/plugins/linux/sockstat.py

@@ -73,14 +73,14 @@ def _build_network_devices_map(self, netns_id: int) -> Dict:
         netdevices_map = {}
         nethead = self._vmlinux.object_from_symbol(symbol_name="net_namespace_list")
         net_symname = self._vmlinux.symbol_table_name + constants.BANG + "net"
-        for net in nethead.to_list(net_symname, "list"):
+        for network in nethead.to_list(net_symname, "list"):
             net_device_symname = (
                 self._vmlinux.symbol_table_name + constants.BANG + "net_device"
             )
             for net_dev in net.dev_base_head.to_list(net_device_symname, "dev_list"):
                 if (
                     isinstance(netns_id, NotAvailableValue)
-                    or net.get_inode() != netns_id
+                    or network.get_inode() != netns_id
                 ):
                     continue
                 dev_name = utility.array_to_string(net_dev.name)

volatility3/framework/symbols/linux/extensions/net.py

@@ -1,5 +1,5 @@
 import logging
-from typing import Dict, List
+from typing import Dict, List, Optional
 
 from volatility3.framework import objects, exceptions, renderers, interfaces, constants
 from volatility3.framework.objects import utility