# -*- coding: utf-8 -*- # # Copyright (C) 2020 GNS3 Technologies Inc. # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . """ API routes for NAT nodes. """ import os from fastapi import APIRouter, Depends, status from fastapi.encoders import jsonable_encoder from fastapi.responses import StreamingResponse from typing import Union from uuid import UUID from gns3server import schemas from gns3server.compute.builtin import Builtin from gns3server.compute.builtin.nodes.nat import Nat responses = { 404: {"model": schemas.ErrorMessage, "description": "Could not find project or NAT node"} } router = APIRouter(responses=responses) def dep_node(project_id: UUID, node_id: UUID): """ Dependency to retrieve a node. """ builtin_manager = Builtin.instance() node = builtin_manager.get_node(str(node_id), project_id=str(project_id)) return node @router.post("", response_model=schemas.NAT, status_code=status.HTTP_201_CREATED, responses={409: {"model": schemas.ErrorMessage, "description": "Could not create NAT node"}}) async def create_nat_node(project_id: UUID, node_data: schemas.NATCreate): """ Create a new NAT node. """ builtin_manager = Builtin.instance() node_data = jsonable_encoder(node_data, exclude_unset=True) node = await builtin_manager.create_node(node_data.pop("name"), str(project_id), node_data.get("node_id"), node_type="nat", ports=node_data.get("ports_mapping")) node.usage = node_data.get("usage", "") return node.__json__() @router.get("/{node_id}", response_model=schemas.NAT) def get_nat_node(node: Nat = Depends(dep_node)): """ Return a NAT node. """ return node.__json__() @router.put("/{node_id}", response_model=schemas.NAT) def update_nat_node(node_data: schemas.NATUpdate, node: Nat = Depends(dep_node)): """ Update a NAT node. """ node_data = jsonable_encoder(node_data, exclude_unset=True) for name, value in node_data.items(): if hasattr(node, name) and getattr(node, name) != value: setattr(node, name, value) node.updated() return node.__json__() @router.delete("/{node_id}", status_code=status.HTTP_204_NO_CONTENT) async def delete_nat_node(node: Nat = Depends(dep_node)): """ Delete a cloud node. """ await Builtin.instance().delete_node(node.id) @router.post("/{node_id}/start", status_code=status.HTTP_204_NO_CONTENT) async def start_nat_node(node: Nat = Depends(dep_node)): """ Start a NAT node. """ await node.start() @router.post("/{node_id}/stop", status_code=status.HTTP_204_NO_CONTENT) async def stop_nat_node(node: Nat = Depends(dep_node)): """ Stop a NAT node. This endpoint results in no action since cloud nodes cannot be stopped. """ pass @router.post("/{node_id}/suspend", status_code=status.HTTP_204_NO_CONTENT) async def suspend_nat_node(node: Nat = Depends(dep_node)): """ Suspend a NAT node. This endpoint results in no action since NAT nodes cannot be suspended. """ pass @router.post("/{node_id}/adapters/{adapter_number}/ports/{port_number}/nio", status_code=status.HTTP_201_CREATED, response_model=Union[schemas.EthernetNIO, schemas.TAPNIO, schemas.UDPNIO]) async def create_nat_node_nio(adapter_number: int, port_number: int, nio_data: Union[schemas.EthernetNIO, schemas.TAPNIO, schemas.UDPNIO], node: Nat = Depends(dep_node)): """ Add a NIO (Network Input/Output) to the node. The adapter number on the cloud is always 0. """ nio = Builtin.instance().create_nio(jsonable_encoder(nio_data, exclude_unset=True)) await node.add_nio(nio, port_number) return nio.__json__() @router.put("/{node_id}/adapters/{adapter_number}/ports/{port_number}/nio", status_code=status.HTTP_201_CREATED, response_model=Union[schemas.EthernetNIO, schemas.TAPNIO, schemas.UDPNIO]) async def update_nat_node_nio(adapter_number: int, port_number: int, nio_data: Union[schemas.EthernetNIO, schemas.TAPNIO, schemas.UDPNIO], node: Nat = Depends(dep_node)): """ Update a NIO (Network Input/Output) to the node. The adapter number on the cloud is always 0. """ nio = node.get_nio(port_number) if nio_data.filters: nio.filters = nio_data.filters await node.update_nio(port_number, nio) return nio.__json__() @router.delete("/{node_id}/adapters/{adapter_number}/ports/{port_number}/nio", status_code=status.HTTP_204_NO_CONTENT) async def delete_nat_node_nio(adapter_number: int, port_number: int, node: Nat = Depends(dep_node)): """ Remove a NIO (Network Input/Output) from the node. The adapter number on the cloud is always 0. """ await node.remove_nio(port_number) @router.post("/{node_id}/adapters/{adapter_number}/ports/{port_number}/capture/start") async def start_nat_node_capture(adapter_number: int, port_number: int, node_capture_data: schemas.NodeCapture, node: Nat = Depends(dep_node)): """ Start a packet capture on the node. The adapter number on the cloud is always 0. """ pcap_file_path = os.path.join(node.project.capture_working_directory(), node_capture_data.capture_file_name) await node.start_capture(port_number, pcap_file_path, node_capture_data.data_link_type) return {"pcap_file_path": pcap_file_path} @router.post("/{node_id}/adapters/{adapter_number}/ports/{port_number}/capture/stop", status_code=status.HTTP_204_NO_CONTENT) async def stop_nat_node_capture(adapter_number: int, port_number: int, node: Nat = Depends(dep_node)): """ Stop a packet capture on the node. The adapter number on the cloud is always 0. """ await node.stop_capture(port_number) @router.get("/{node_id}/adapters/{adapter_number}/ports/{port_number}/capture/stream") async def stream_pcap_file(adapter_number: int, port_number: int, node: Nat = Depends(dep_node)): """ Stream the pcap capture file. The adapter number on the cloud is always 0. """ nio = node.get_nio(port_number) stream = Builtin.instance().stream_pcap_file(nio, node.project.id) return StreamingResponse(stream, media_type="application/vnd.tcpdump.pcap")