diff --git a/gns3server/handlers/api/docker_handler.py b/gns3server/handlers/api/docker_handler.py index 51b737b4..35c8a7c5 100644 --- a/gns3server/handlers/api/docker_handler.py +++ b/gns3server/handlers/api/docker_handler.py @@ -15,6 +15,7 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see . +import os from aiohttp.web import HTTPConflict from ...web.route import Route @@ -26,6 +27,7 @@ from ...schemas.docker import ( DOCKER_UPDATE_SCHEMA, DOCKER_LIST_IMAGES_SCHEMA ) +from ...schemas.vm import VM_CAPTURE_SCHEMA from ...schemas.nio import NIO_SCHEMA @@ -276,3 +278,60 @@ class DockerHandler: vm.environment = request.json.get("environment", vm.environment) yield from vm.update() response.json(vm) + + @Route.post( + r"/projects/{project_id}/docker/vms/{vm_id}/adapters/{adapter_number:\d+}/ports/{port_number:\d+}/start_capture", + parameters={ + "project_id": "UUID for the project", + "vm_id": "UUID for the instance", + "adapter_number": "Adapter to start a packet capture", + "port_number": "Port on the adapter" + }, + status_codes={ + 200: "Capture started", + 400: "Invalid request", + 404: "Instance doesn't exist", + 409: "VM not started" + }, + description="Start a packet capture on a IOU VM instance", + input=VM_CAPTURE_SCHEMA) + def start_capture(request, response): + + iou_manager = Docker.instance() + vm = iou_manager.get_vm(request.match_info["vm_id"], project_id=request.match_info["project_id"]) + adapter_number = int(request.match_info["adapter_number"]) + port_number = int(request.match_info["port_number"]) + pcap_file_path = os.path.join(vm.project.capture_working_directory(), request.json["capture_file_name"]) + + if not vm.is_running(): + raise HTTPConflict(text="Cannot capture traffic on a non started VM") + yield from vm.start_capture(adapter_number, pcap_file_path) + response.json({"pcap_file_path": str(pcap_file_path)}) + + @Route.post( + r"/projects/{project_id}/docker/vms/{vm_id}/adapters/{adapter_number:\d+}/ports/{port_number:\d+}/stop_capture", + parameters={ + "project_id": "UUID for the project", + "vm_id": "UUID for the instance", + "adapter_number": "Adapter to stop a packet capture", + "port_number": "Port on the adapter (always 0)" + }, + status_codes={ + 204: "Capture stopped", + 400: "Invalid request", + 404: "Instance doesn't exist", + 409: "VM not started" + }, + description="Stop a packet capture on a IOU VM instance") + def stop_capture(request, response): + + iou_manager = Docker.instance() + vm = iou_manager.get_vm(request.match_info["vm_id"], project_id=request.match_info["project_id"]) + + if not vm.is_running(): + raise HTTPConflict(text="Cannot capture traffic on a non started VM") + + adapter_number = int(request.match_info["adapter_number"]) + port_number = int(request.match_info["port_number"]) + yield from vm.stop_capture(adapter_number, port_number) + response.set_status(204) diff --git a/gns3server/handlers/api/dynamips_device_handler.py b/gns3server/handlers/api/dynamips_device_handler.py index 10220cec..9f8f940b 100644 --- a/gns3server/handlers/api/dynamips_device_handler.py +++ b/gns3server/handlers/api/dynamips_device_handler.py @@ -20,9 +20,9 @@ import asyncio from ...web.route import Route from ...schemas.dynamips_device import DEVICE_CREATE_SCHEMA from ...schemas.dynamips_device import DEVICE_UPDATE_SCHEMA -from ...schemas.dynamips_device import DEVICE_CAPTURE_SCHEMA from ...schemas.dynamips_device import DEVICE_OBJECT_SCHEMA from ...schemas.dynamips_device import DEVICE_NIO_SCHEMA +from ...schemas.vm import VM_CAPTURE_SCHEMA from ...modules.dynamips import Dynamips @@ -198,7 +198,7 @@ class DynamipsDeviceHandler: 404: "Instance doesn't exist" }, description="Start a packet capture on a Dynamips device instance", - input=DEVICE_CAPTURE_SCHEMA) + input=VM_CAPTURE_SCHEMA) def start_capture(request, response): dynamips_manager = Dynamips.instance() diff --git a/gns3server/handlers/api/dynamips_vm_handler.py b/gns3server/handlers/api/dynamips_vm_handler.py index f3a96eed..0f1cc16c 100644 --- a/gns3server/handlers/api/dynamips_vm_handler.py +++ b/gns3server/handlers/api/dynamips_vm_handler.py @@ -24,9 +24,9 @@ from ...schemas.nio import NIO_SCHEMA from ...schemas.vm import VM_LIST_IMAGES_SCHEMA from ...schemas.dynamips_vm import VM_CREATE_SCHEMA from ...schemas.dynamips_vm import VM_UPDATE_SCHEMA -from ...schemas.dynamips_vm import VM_CAPTURE_SCHEMA from ...schemas.dynamips_vm import VM_OBJECT_SCHEMA from ...schemas.dynamips_vm import VM_CONFIGS_SCHEMA +from ...schemas.vm import VM_CAPTURE_SCHEMA from ...modules.dynamips import Dynamips from ...modules.dynamips.dynamips_error import DynamipsError from ...modules.project_manager import ProjectManager diff --git a/gns3server/handlers/api/iou_handler.py b/gns3server/handlers/api/iou_handler.py index 7a976393..dbc3d923 100644 --- a/gns3server/handlers/api/iou_handler.py +++ b/gns3server/handlers/api/iou_handler.py @@ -24,9 +24,9 @@ from ...schemas.iou import IOU_CREATE_SCHEMA from ...schemas.iou import IOU_START_SCHEMA from ...schemas.iou import IOU_UPDATE_SCHEMA from ...schemas.iou import IOU_OBJECT_SCHEMA -from ...schemas.iou import IOU_CAPTURE_SCHEMA from ...schemas.iou import IOU_CONFIGS_SCHEMA from ...schemas.vm import VM_LIST_IMAGES_SCHEMA +from ...schemas.vm import VM_CAPTURE_SCHEMA from ...modules.iou import IOU @@ -274,7 +274,7 @@ class IOUHandler: 409: "VM not started" }, description="Start a packet capture on a IOU VM instance", - input=IOU_CAPTURE_SCHEMA) + input=VM_CAPTURE_SCHEMA) def start_capture(request, response): iou_manager = IOU.instance() diff --git a/gns3server/handlers/api/virtualbox_handler.py b/gns3server/handlers/api/virtualbox_handler.py index f93d4db3..fbc45871 100644 --- a/gns3server/handlers/api/virtualbox_handler.py +++ b/gns3server/handlers/api/virtualbox_handler.py @@ -22,8 +22,8 @@ from ...web.route import Route from ...schemas.nio import NIO_SCHEMA from ...schemas.virtualbox import VBOX_CREATE_SCHEMA from ...schemas.virtualbox import VBOX_UPDATE_SCHEMA -from ...schemas.virtualbox import VBOX_CAPTURE_SCHEMA from ...schemas.virtualbox import VBOX_OBJECT_SCHEMA +from ...schemas.vm import VM_CAPTURE_SCHEMA from ...modules.virtualbox import VirtualBox from ...modules.project_manager import ProjectManager @@ -342,7 +342,7 @@ class VirtualBoxHandler: 404: "Instance doesn't exist" }, description="Start a packet capture on a VirtualBox VM instance", - input=VBOX_CAPTURE_SCHEMA) + input=VM_CAPTURE_SCHEMA) def start_capture(request, response): vbox_manager = VirtualBox.instance() diff --git a/gns3server/handlers/api/vmware_handler.py b/gns3server/handlers/api/vmware_handler.py index 8512d53d..d2b3d1ce 100644 --- a/gns3server/handlers/api/vmware_handler.py +++ b/gns3server/handlers/api/vmware_handler.py @@ -22,7 +22,7 @@ from ...web.route import Route from ...schemas.vmware import VMWARE_CREATE_SCHEMA from ...schemas.vmware import VMWARE_UPDATE_SCHEMA from ...schemas.vmware import VMWARE_OBJECT_SCHEMA -from ...schemas.vmware import VMWARE_CAPTURE_SCHEMA +from ...schemas.vm import VM_CAPTURE_SCHEMA from ...schemas.nio import NIO_SCHEMA from ...modules.vmware import VMware from ...modules.project_manager import ProjectManager @@ -314,7 +314,7 @@ class VMwareHandler: 404: "Instance doesn't exist", }, description="Start a packet capture on a VMware VM instance", - input=VMWARE_CAPTURE_SCHEMA) + input=VM_CAPTURE_SCHEMA) def start_capture(request, response): vmware_manager = VMware.instance() diff --git a/gns3server/modules/docker/docker_vm.py b/gns3server/modules/docker/docker_vm.py index eb15f90c..85f9fd28 100644 --- a/gns3server/modules/docker/docker_vm.py +++ b/gns3server/modules/docker/docker_vm.py @@ -501,3 +501,89 @@ class DockerVM(BaseVM): except ValueError: # Partial JSON pass self.project.emit("log.info", {"message": "Success pulling image {}".format(self._image)}) + + @asyncio.coroutine + def _start_ubridge_capture(self, adapter_number, output_file): + """ + Start a packet capture in uBridge. + + :param adapter_number: adapter number + :param output_file: PCAP destination file for the capture + """ + + adapter = "bridge{}".format(adapter_number) + if not self._ubridge_hypervisor: + raise VMwareError("Cannot start the packet capture: uBridge is not running") + yield from self._ubridge_hypervisor.send('bridge start_capture {name} "{output_file}"'.format(name=adapter, output_file=output_file)) + + @asyncio.coroutine + def _stop_ubridge_capture(self, adapter_number): + """ + Stop a packet capture in uBridge. + + :param adapter_number: adapter number + """ + + adapter = "bridge{}".format(adapter_number) + if not self._ubridge_hypervisor: + raise VMwareError("Cannot stop the packet capture: uBridge is not running") + yield from self._ubridge_hypervisor.send("bridge stop_capture {name}".format(name=adapter)) + + @asyncio.coroutine + def start_capture(self, adapter_number, output_file): + """ + Starts a packet capture. + + :param adapter_number: adapter number + :param output_file: PCAP destination file for the capture + """ + + try: + adapter = self._ethernet_adapters[adapter_number] + except KeyError: + raise DockerError("Adapter {adapter_number} doesn't exist on Docker VM '{name}'".format(name=self.name, + adapter_number=adapter_number)) + + nio = adapter.get_nio(0) + + if not nio: + raise DockerError("Adapter {} is not connected".format(adapter_number)) + + if nio.capturing: + raise DockerError("Packet capture is already activated on adapter {adapter_number}".format(adapter_number=adapter_number)) + + nio.startPacketCapture(output_file) + + if self.status == "started": + yield from self._start_ubridge_capture(adapter_number, output_file) + + log.info("Docker VM '{name}' [{id}]: starting packet capture on adapter {adapter_number}".format(name=self.name, + id=self.id, + adapter_number=adapter_number)) + + def stop_capture(self, adapter_number): + """ + Stops a packet capture. + + :param adapter_number: adapter number + """ + + try: + adapter = self._ethernet_adapters[adapter_number] + except KeyError: + raise DockerError("Adapter {adapter_number} doesn't exist on Docker VM '{name}'".format(name=self.name, + adapter_number=adapter_number)) + + nio = adapter.get_nio(0) + + if not nio: + raise DockerError("Adapter {} is not connected".format(adapter_number)) + + nio.stopPacketCapture() + + if self.status == "started": + yield from self._stop_ubridge_capture(adapter_number) + + log.info("Docker VM '{name}' [{id}]: stopping packet capture on adapter {adapter_number}".format(name=self.name, + id=self.id, + adapter_number=adapter_number)) diff --git a/gns3server/modules/vmware/vmware_vm.py b/gns3server/modules/vmware/vmware_vm.py index 516c674c..c7a7d44e 100644 --- a/gns3server/modules/vmware/vmware_vm.py +++ b/gns3server/modules/vmware/vmware_vm.py @@ -976,8 +976,8 @@ class VMwareVM(BaseVM): try: adapter = self._ethernet_adapters[adapter_number] except KeyError: - raise VMwareError("Adapter {adapter_number} doesn't exist on VirtualBox VM '{name}'".format(name=self.name, - adapter_number=adapter_number)) + raise VMwareError("Adapter {adapter_number} doesn't exist on VMware VM '{name}'".format(name=self.name, + adapter_number=adapter_number)) nio = adapter.get_nio(0) diff --git a/gns3server/schemas/dynamips_device.py b/gns3server/schemas/dynamips_device.py index 45d6da0c..6b8cf101 100644 --- a/gns3server/schemas/dynamips_device.py +++ b/gns3server/schemas/dynamips_device.py @@ -346,23 +346,3 @@ DEVICE_NIO_SCHEMA = { "additionalProperties": False, "required": ["nio"] } - -DEVICE_CAPTURE_SCHEMA = { - "$schema": "http://json-schema.org/draft-04/schema#", - "description": "Request validation to start a packet capture on an Device instance port", - "type": "object", - "properties": { - "capture_file_name": { - "description": "Capture file name", - "type": "string", - "minLength": 1, - }, - "data_link_type": { - "description": "PCAP data link type", - "type": "string", - "minLength": 1, - }, - }, - "additionalProperties": False, - "required": ["capture_file_name", "data_link_type"] -} diff --git a/gns3server/schemas/dynamips_vm.py b/gns3server/schemas/dynamips_vm.py index 942e9a06..9bf2f121 100644 --- a/gns3server/schemas/dynamips_vm.py +++ b/gns3server/schemas/dynamips_vm.py @@ -491,25 +491,6 @@ VM_UPDATE_SCHEMA = { "additionalProperties": False, } -VM_CAPTURE_SCHEMA = { - "$schema": "http://json-schema.org/draft-04/schema#", - "description": "Request validation to start a packet capture on a Dynamips VM instance port", - "type": "object", - "properties": { - "capture_file_name": { - "description": "Capture file name", - "type": "string", - "minLength": 1, - }, - "data_link_type": { - "description": "PCAP data link type", - "type": "string", - "minLength": 1, - }, - }, - "additionalProperties": False, - "required": ["capture_file_name", "data_link_type"] -} VM_OBJECT_SCHEMA = { "$schema": "http://json-schema.org/draft-04/schema#", diff --git a/gns3server/schemas/iou.py b/gns3server/schemas/iou.py index b5c64f92..936e50b1 100644 --- a/gns3server/schemas/iou.py +++ b/gns3server/schemas/iou.py @@ -266,25 +266,6 @@ IOU_OBJECT_SCHEMA = { "command_line"] } -IOU_CAPTURE_SCHEMA = { - "$schema": "http://json-schema.org/draft-04/schema#", - "description": "Request validation to start a packet capture on a IOU instance", - "type": "object", - "properties": { - "capture_file_name": { - "description": "Capture file name", - "type": "string", - "minLength": 1, - }, - "data_link_type": { - "description": "PCAP data link type", - "type": "string", - "minLength": 1, - }, - }, - "additionalProperties": False, - "required": ["capture_file_name", "data_link_type"] -} IOU_CONFIGS_SCHEMA = { "$schema": "http://json-schema.org/draft-04/schema#", diff --git a/gns3server/schemas/virtualbox.py b/gns3server/schemas/virtualbox.py index 762acce4..f9daa96e 100644 --- a/gns3server/schemas/virtualbox.py +++ b/gns3server/schemas/virtualbox.py @@ -147,20 +147,6 @@ VBOX_UPDATE_SCHEMA = { "additionalProperties": False, } -VBOX_CAPTURE_SCHEMA = { - "$schema": "http://json-schema.org/draft-04/schema#", - "description": "Request validation to start a packet capture on a VirtualBox VM instance port", - "type": "object", - "properties": { - "capture_file_name": { - "description": "Capture file name", - "type": "string", - "minLength": 1, - }, - }, - "additionalProperties": False, - "required": ["capture_file_name"] -} VBOX_OBJECT_SCHEMA = { "$schema": "http://json-schema.org/draft-04/schema#", diff --git a/gns3server/schemas/vm.py b/gns3server/schemas/vm.py index 239f16b8..a1623a31 100644 --- a/gns3server/schemas/vm.py +++ b/gns3server/schemas/vm.py @@ -41,3 +41,24 @@ VM_LIST_IMAGES_SCHEMA = { ], "additionalProperties": False, } + + +VM_CAPTURE_SCHEMA = { + "$schema": "http://json-schema.org/draft-04/schema#", + "description": "Request validation to start a packet capture on a port", + "type": "object", + "properties": { + "capture_file_name": { + "description": "Capture file name", + "type": "string", + "minLength": 1, + }, + "data_link_type": { + "description": "PCAP data link type", + "type": "string", + "minLength": 1, + } + }, + "additionalProperties": False, + "required": ["capture_file_name"] +} diff --git a/gns3server/schemas/vmware.py b/gns3server/schemas/vmware.py index 24f6321c..87c16453 100644 --- a/gns3server/schemas/vmware.py +++ b/gns3server/schemas/vmware.py @@ -140,20 +140,6 @@ VMWARE_UPDATE_SCHEMA = { "additionalProperties": False, } -VMWARE_CAPTURE_SCHEMA = { - "$schema": "http://json-schema.org/draft-04/schema#", - "description": "Request validation to start a packet capture on a VMware VM instance port", - "type": "object", - "properties": { - "capture_file_name": { - "description": "Capture file name", - "type": "string", - "minLength": 1, - }, - }, - "additionalProperties": False, - "required": ["capture_file_name"] -} VMWARE_OBJECT_SCHEMA = { "$schema": "http://json-schema.org/draft-04/schema#", diff --git a/tests/handlers/api/test_docker.py b/tests/handlers/api/test_docker.py index cf4e1785..06d58026 100644 --- a/tests/handlers/api/test_docker.py +++ b/tests/handlers/api/test_docker.py @@ -123,3 +123,52 @@ def test_docker_update(server, vm, tmpdir, free_console_port): assert response.json["console"] == free_console_port assert response.json["start_command"] == "yes" assert response.json["environment"] == "GNS3=1\nGNS4=0" + + +def test_docker_start_capture(server, vm, tmpdir, project): + + with patch("gns3server.modules.docker.docker_vm.DockerVM.is_running", return_value=True) as mock: + with asyncio_patch("gns3server.modules.docker.docker_vm.DockerVM.start_capture") as start_capture: + + params = {"capture_file_name": "test.pcap", "data_link_type": "DLT_EN10MB"} + response = server.post("/projects/{project_id}/docker/vms/{vm_id}/adapters/0/ports/0/start_capture".format(project_id=vm["project_id"], vm_id=vm["vm_id"]), body=params, example=True) + + assert response.status == 200 + + assert start_capture.called + assert "test.pcap" in response.json["pcap_file_path"] + + +def test_docker_start_capture_not_started(server, vm, tmpdir): + + with patch("gns3server.modules.docker.docker_vm.DockerVM.is_running", return_value=False) as mock: + with asyncio_patch("gns3server.modules.docker.docker_vm.DockerVM.start_capture") as start_capture: + + params = {"capture_file_name": "test.pcap", "data_link_type": "DLT_EN10MB"} + response = server.post("/projects/{project_id}/docker/vms/{vm_id}/adapters/0/ports/0/start_capture".format(project_id=vm["project_id"], vm_id=vm["vm_id"]), body=params) + + assert not start_capture.called + assert response.status == 409 + + +def test_docker_stop_capture(server, vm, tmpdir, project): + + with patch("gns3server.modules.docker.docker_vm.DockerVM.is_running", return_value=True) as mock: + with asyncio_patch("gns3server.modules.docker.docker_vm.DockerVM.stop_capture") as stop_capture: + + response = server.post("/projects/{project_id}/docker/vms/{vm_id}/adapters/0/ports/0/stop_capture".format(project_id=vm["project_id"], vm_id=vm["vm_id"]), example=True) + + assert response.status == 204 + + assert stop_capture.called + + +def test_docker_stop_capture_not_started(server, vm, tmpdir): + + with patch("gns3server.modules.docker.docker_vm.DockerVM.is_running", return_value=False) as mock: + with asyncio_patch("gns3server.modules.docker.docker_vm.DockerVM.stop_capture") as stop_capture: + + response = server.post("/projects/{project_id}/docker/vms/{vm_id}/adapters/0/ports/0/stop_capture".format(project_id=vm["project_id"], vm_id=vm["vm_id"])) + + assert not stop_capture.called + assert response.status == 409 diff --git a/tests/modules/docker/test_docker_vm.py b/tests/modules/docker/test_docker_vm.py index ced26168..0abf2a47 100644 --- a/tests/modules/docker/test_docker_vm.py +++ b/tests/modules/docker/test_docker_vm.py @@ -133,7 +133,7 @@ def test_create_environment(loop, project, manager): "Env": [ "YES=1", "NO=0" - ], + ], "NetworkDisabled": True, "Name": "test", "Image": "ubuntu" @@ -259,9 +259,6 @@ def test_start_without_nio(loop, vm, manager, free_console_port): assert vm.status != "started" vm.adapters = 1 - # nio = manager.create_nio(0, {"type": "nio_udp", "lport": free_console_port, "rport": free_console_port, "rhost": "127.0.0.1"}) - # loop.run_until_complete(asyncio.async(vm.adapter_add_nio_binding(0, nio))) - with asyncio_patch("gns3server.modules.docker.DockerVM._get_container_state", return_value="stopped"): with asyncio_patch("gns3server.modules.docker.Docker.query") as mock_query: with asyncio_patch("gns3server.modules.docker.DockerVM._start_ubridge") as mock_start_ubridge: @@ -544,3 +541,23 @@ def test_pull_image(loop, vm): with asyncio_patch("gns3server.modules.docker.Docker.http_query", return_value=mock_query) as mock: images = loop.run_until_complete(asyncio.async(vm.pull_image("ubuntu"))) mock.assert_called_with("POST", "images/create", params={"fromImage": "ubuntu"}) + + +def test_start_capture(vm, tmpdir, manager, free_console_port, loop): + + output_file = str(tmpdir / "test.pcap") + nio = manager.create_nio(0, {"type": "nio_udp", "lport": free_console_port, "rport": free_console_port, "rhost": "127.0.0.1"}) + loop.run_until_complete(asyncio.async(vm.adapter_add_nio_binding(0, nio))) + loop.run_until_complete(asyncio.async(vm.start_capture(0, output_file))) + assert vm._ethernet_adapters[0].get_nio(0).capturing + + +def test_stop_capture(vm, tmpdir, manager, free_console_port, loop): + + output_file = str(tmpdir / "test.pcap") + nio = manager.create_nio(0, {"type": "nio_udp", "lport": free_console_port, "rport": free_console_port, "rhost": "127.0.0.1"}) + loop.run_until_complete(asyncio.async(vm.adapter_add_nio_binding(0, nio))) + loop.run_until_complete(vm.start_capture(0, output_file)) + assert vm._ethernet_adapters[0].get_nio(0).capturing + loop.run_until_complete(asyncio.async(vm.stop_capture(0))) + assert vm._ethernet_adapters[0].get_nio(0).capturing is False diff --git a/tests/modules/vmware/test_vmware_vm.py b/tests/modules/vmware/test_vmware_vm.py index 0e3b1651..76688497 100644 --- a/tests/modules/vmware/test_vmware_vm.py +++ b/tests/modules/vmware/test_vmware_vm.py @@ -49,3 +49,25 @@ def test_json(vm, tmpdir, project): project._path = str(tmpdir) vm._linked_clone = True assert vm.__json__()["vm_directory"] is not None + + +def test_start_capture(vm, tmpdir, manager, free_console_port, loop): + + output_file = str(tmpdir / "test.pcap") + nio = manager.create_nio(0, {"type": "nio_udp", "lport": free_console_port, "rport": free_console_port, "rhost": "127.0.0.1"}) + vm.adapters = 1 + loop.run_until_complete(asyncio.async(vm.adapter_add_nio_binding(0, nio))) + loop.run_until_complete(asyncio.async(vm.start_capture(0, output_file))) + assert vm._ethernet_adapters[0].get_nio(0).capturing + + +def test_stop_capture(vm, tmpdir, manager, free_console_port, loop): + + output_file = str(tmpdir / "test.pcap") + nio = manager.create_nio(0, {"type": "nio_udp", "lport": free_console_port, "rport": free_console_port, "rhost": "127.0.0.1"}) + vm.adapters = 1 + loop.run_until_complete(asyncio.async(vm.adapter_add_nio_binding(0, nio))) + loop.run_until_complete(vm.start_capture(0, output_file)) + assert vm._ethernet_adapters[0].get_nio(0).capturing + loop.run_until_complete(asyncio.async(vm.stop_capture(0))) + assert vm._ethernet_adapters[0].get_nio(0).capturing is False