Support to activate/deactive network connection state replication in Qemu.

gns3server/compute/qemu/qemu_vm.py

@@ -117,6 +117,7 @@ class QemuVM(BaseNode):
         self._kernel_image = ""
         self._kernel_command_line = ""
         self._legacy_networking = False
+        self._replicate_network_connection_state = True
         self._on_close = "power_off"
         self._cpu_throttling = 0  # means no CPU throttling
         self._process_priority = "low"
@@ -615,6 +616,30 @@ class QemuVM(BaseNode):
             log.info('QEMU VM "{name}" [{id}] has disabled legacy networking'.format(name=self._name, id=self._id))
         self._legacy_networking = legacy_networking
 
+    @property
+    def replicate_network_connection_state(self):
+        """
+        Returns whether the network connection state for links is replicated in QEMU.
+
+        :returns: boolean
+        """
+
+        return self._replicate_network_connection_state
+
+    @replicate_network_connection_state.setter
+    def replicate_network_connection_state(self, replicate_network_connection_state):
+        """
+        Sets whether the network connection state for links is replicated in QEMU
+
+        :param replicate_network_connection_state: boolean
+        """
+
+        if replicate_network_connection_state:
+            log.info('QEMU VM "{name}" [{id}] has enabled network connection state replication'.format(name=self._name, id=self._id))
+        else:
+            log.info('QEMU VM "{name}" [{id}] has disabled network connection state replication'.format(name=self._name, id=self._id))
+        self._replicate_network_connection_state = replicate_network_connection_state
+
     @property
     def on_close(self):
         """
@@ -1004,12 +1029,12 @@ class QemuVM(BaseNode):
                     await self.add_ubridge_udp_connection("QEMU-{}-{}".format(self._id, adapter_number),
                                                                self._local_udp_tunnels[adapter_number][1],
                                                                nio)
-                    if nio.suspend:
+                    if nio.suspend and self._replicate_network_connection_state:
                         set_link_commands.append("set_link gns3-{} off".format(adapter_number))
-                else:
+                elif self._replicate_network_connection_state:
                     set_link_commands.append("set_link gns3-{} off".format(adapter_number))
 
-            if "-loadvm" not in command_string:
+            if "-loadvm" not in command_string and self._replicate_network_connection_state:
                 # only set the link statuses if not restoring a previous VM state
                 await self._control_vm_commands(set_link_commands)
 
@@ -1293,6 +1318,7 @@ class QemuVM(BaseNode):
                 await self.add_ubridge_udp_connection("QEMU-{}-{}".format(self._id, adapter_number),
                                                            self._local_udp_tunnels[adapter_number][1],
                                                            nio)
+                if self._replicate_network_connection_state:
                     await self._control_vm("set_link gns3-{} on".format(adapter_number))
             except (IndexError, KeyError):
                 raise QemuError('Adapter {adapter_number} does not exist on QEMU VM "{name}"'.format(name=self._name,
@@ -1317,6 +1343,7 @@ class QemuVM(BaseNode):
                 await self.update_ubridge_udp_connection("QEMU-{}-{}".format(self._id, adapter_number),
                                                               self._local_udp_tunnels[adapter_number][1],
                                                               nio)
+                if self._replicate_network_connection_state:
                     if nio.suspend:
                         await self._control_vm("set_link gns3-{} off".format(adapter_number))
                     else:
@@ -1342,6 +1369,7 @@ class QemuVM(BaseNode):
 
         await self.stop_capture(adapter_number)
         if self.is_running():
+            if self._replicate_network_connection_state:
                 await self._control_vm("set_link gns3-{} off".format(adapter_number))
             await self._ubridge_send("bridge delete {name}".format(name="QEMU-{}-{}".format(self._id, adapter_number)))
 

gns3server/schemas/qemu.py

@@ -186,6 +186,10 @@ QEMU_CREATE_SCHEMA = {
             "description": "Use QEMU legagy networking commands (-net syntax)",
             "type": ["boolean", "null"],
         },
+        "replicate_network_connection_state": {
+            "description": "Replicate the network connection state for links in Qemu",
+            "type": ["boolean", "null"],
+        },
         "on_close": {
             "description": "Action to execute on the VM is closed",
             "enum": ["power_off", "shutdown_signal", "save_vm_state"],
@@ -372,6 +376,10 @@ QEMU_UPDATE_SCHEMA = {
             "description": "Use QEMU legagy networking commands (-net syntax)",
             "type": ["boolean", "null"],
         },
+        "replicate_network_connection_state": {
+            "description": "Replicate the network connection state for links in Qemu",
+            "type": ["boolean", "null"],
+        },
         "on_close": {
             "description": "Action to execute on the VM is closed",
             "enum": ["power_off", "shutdown_signal", "save_vm_state"],
@@ -571,6 +579,10 @@ QEMU_OBJECT_SCHEMA = {
             "description": "Use QEMU legagy networking commands (-net syntax)",
             "type": "boolean",
         },
+        "replicate_network_connection_state": {
+            "description": "Replicate the network connection state for links in Qemu",
+            "type": "boolean",
+        },
         "on_close": {
             "description": "Action to execute on the VM is closed",
             "enum": ["power_off", "shutdown_signal", "save_vm_state"],
@@ -640,6 +652,7 @@ QEMU_OBJECT_SCHEMA = {
                  "kernel_image_md5sum",
                  "kernel_command_line",
                  "legacy_networking",
+                 "replicate_network_connection_state",
                  "on_close",
                  "cpu_throttling",
                  "process_priority",

gns3server/schemas/qemu_template.py

@@ -178,6 +178,11 @@ QEMU_TEMPLATE_PROPERTIES = {
         "type": "boolean",
         "default": False
     },
+    "replicate_network_connection_state": {
+        "description": "Replicate the network connection state for links in Qemu",
+        "type": "boolean",
+        "default": True
+    },
     "on_close": {
         "description": "Action to execute on the VM is closed",
         "enum": ["power_off", "shutdown_signal", "save_vm_state"],