mirror of
https://github.com/GNS3/gns3-server.git
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200c946eef
Whether an IOU port can terminate on a persistent TAP (iol_bridge add_nio_tap) is a capability of its own: the tap module and that command land independently, so a build may have one without the other. Probed on a scratch IOL bridge with a scratch TAP — one add/delete cycle, no iol_bridge start needed (attaching a NIO works on a stopped bridge) — cached by binary identity, with the scratch bridge id above the per-node id space the fabric locks (513..1024) so a probe cannot collide with a running node. Any failure, including an old build's "Unknown command", means unknown: IOU stays on the relay datapath. Reported through /capabilities as ubridge_iol_tap, next to ubridge_tap.
156 lines
6.3 KiB
Python
156 lines
6.3 KiB
Python
#
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# Copyright (C) 2020 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys
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import psutil
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import pytest
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from fastapi import FastAPI, status
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from httpx import AsyncClient
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from gns3server.utils.path import get_default_project_directory
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from gns3server.version import __version__
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pytestmark = pytest.mark.asyncio
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async def _no_tap_probe():
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"""The probes spawn uBridge — stub them out for payload assertions."""
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return None
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class TestCapabilitiesRoutes:
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async def test_get(self, app: FastAPI, compute_client: AsyncClient, windows_platform, monkeypatch) -> None:
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async def no_probe():
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return None
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tc_capabilities", no_probe)
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", _no_tap_probe)
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", _no_tap_probe)
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response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
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assert response.status_code == status.HTTP_200_OK
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assert response.json() == {
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"node_types": [
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"cloud",
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"ethernet_hub",
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"ethernet_switch",
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"nat",
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"vpcs",
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"virtualbox",
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"dynamips",
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"frame_relay_switch",
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"atm_switch",
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"qemu",
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"vmware",
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"docker",
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"iou",
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],
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"version": __version__,
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"platform": sys.platform,
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"cpus": psutil.cpu_count(logical=True),
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"memory": psutil.virtual_memory().total,
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"disk_size": psutil.disk_usage(get_default_project_directory()).total,
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"ubridge_tc": None,
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"ubridge_tap": None,
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"ubridge_iol_tap": None,
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}
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async def test_get_on_gns3vm(self, app: FastAPI, compute_client: AsyncClient, on_gns3vm, monkeypatch) -> None:
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async def no_probe():
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return None
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tc_capabilities", no_probe)
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", _no_tap_probe)
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", _no_tap_probe)
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response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
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assert response.status_code == status.HTTP_200_OK
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assert response.json() == {
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"node_types": [
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"cloud",
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"ethernet_hub",
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"ethernet_switch",
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"nat",
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"vpcs",
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"virtualbox",
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"dynamips",
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"frame_relay_switch",
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"atm_switch",
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"qemu",
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"vmware",
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"docker",
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"iou",
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],
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"version": __version__,
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"platform": sys.platform,
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"cpus": psutil.cpu_count(logical=True),
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"memory": psutil.virtual_memory().total,
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"disk_size": psutil.disk_usage(get_default_project_directory()).total,
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"ubridge_tc": None,
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"ubridge_tap": None,
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"ubridge_iol_tap": None,
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}
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async def test_get_reports_ubridge_tc(self, app: FastAPI, compute_client: AsyncClient, monkeypatch) -> None:
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async def fake_probe():
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return {"netem": "delay,rate", "ebpf": "1", "cbpf": "0", "ebpf_modes": "nth,quota,window,flow"}
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tc_capabilities", fake_probe)
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", _no_tap_probe)
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", _no_tap_probe)
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response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
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assert response.status_code == status.HTTP_200_OK
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assert response.json()["ubridge_tc"] == {
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"netem": ["delay", "rate"],
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"ebpf": True,
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"ebpf_modes": ["nth", "quota", "window", "flow"],
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"cbpf": False,
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}
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async def test_get_reports_ubridge_tap(self, app: FastAPI, compute_client: AsyncClient, monkeypatch) -> None:
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"""
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The tap capability is what makes a QEMU node kernel-eligible, so it
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travels with the other compute capabilities.
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"""
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async def fake_tap_probe():
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return True
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", fake_tap_probe)
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", _no_tap_probe)
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response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
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assert response.status_code == status.HTTP_200_OK
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assert response.json()["ubridge_tap"] is True
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async def test_get_reports_ubridge_iol_tap(self, app: FastAPI, compute_client: AsyncClient, monkeypatch) -> None:
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"""
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The IOL-port TAP capability is what makes an IOU node kernel-eligible,
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so it travels with the other compute capabilities.
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"""
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async def fake_iol_tap_probe():
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return True
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", fake_iol_tap_probe)
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monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", _no_tap_probe)
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response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
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assert response.status_code == status.HTTP_200_OK
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assert response.json()["ubridge_iol_tap"] is True
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