gns3-server/tests/api/routes/compute/test_capabilities.py
YueGuobin c20125c180
feat(compute): probe uBridge's swappable bridge TAP leg
The bridge module gained delete_nio_tap (uBridge's gns3server-integration
contract, section 'bridge — generic NIO relay with a swappable TAP leg'):
a per-port bridge can swap its topology leg between UDP and a persistent
TAP through stop -> delete -> add -> start, which is what lets an IOL
runner container's port bridge carry a kernel-link anchor.

The probe needs no scratch objects and no capabilities: one command
against a bridge that cannot exist — 202 (unknown command) is an old
build, 214 (bridge doesn't exist) is a new one. Cached by binary identity
like every other probe; any failure reports unknown.

GET /v3/compute/capabilities gains ubridge_bridge_tap; the controller's
default capability dict carries it too (the single schema definition, per
the 1e67fbf12 lesson).
2026-10-06 00:21:09 +08:00

179 lines
7.8 KiB
Python

#
# 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 <http://www.gnu.org/licenses/>.
import sys
import psutil
import pytest
from fastapi import FastAPI, status
from httpx import AsyncClient
from gns3server.utils.path import get_default_project_directory
from gns3server.version import __version__
pytestmark = pytest.mark.asyncio
async def _no_tap_probe():
"""The probes spawn uBridge — stub them out for payload assertions."""
return None
class TestCapabilitiesRoutes:
async def test_get(self, app: FastAPI, compute_client: AsyncClient, windows_platform, monkeypatch) -> None:
async def no_probe():
return None
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tc_capabilities", no_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", _no_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", _no_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_bridge_tap_support", _no_tap_probe)
response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
assert response.status_code == status.HTTP_200_OK
assert response.json() == {
"node_types": [
"cloud",
"ethernet_hub",
"ethernet_switch",
"nat",
"vpcs",
"virtualbox",
"dynamips",
"frame_relay_switch",
"atm_switch",
"qemu",
"vmware",
"docker",
"iou",
],
"version": __version__,
"platform": sys.platform,
"cpus": psutil.cpu_count(logical=True),
"memory": psutil.virtual_memory().total,
"disk_size": psutil.disk_usage(get_default_project_directory()).total,
"ubridge_tc": None,
"ubridge_tap": None,
"ubridge_iol_tap": None,
"ubridge_bridge_tap": None,
}
async def test_get_on_gns3vm(self, app: FastAPI, compute_client: AsyncClient, on_gns3vm, monkeypatch) -> None:
async def no_probe():
return None
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tc_capabilities", no_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", _no_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", _no_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_bridge_tap_support", _no_tap_probe)
response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
assert response.status_code == status.HTTP_200_OK
assert response.json() == {
"node_types": [
"cloud",
"ethernet_hub",
"ethernet_switch",
"nat",
"vpcs",
"virtualbox",
"dynamips",
"frame_relay_switch",
"atm_switch",
"qemu",
"vmware",
"docker",
"iou",
],
"version": __version__,
"platform": sys.platform,
"cpus": psutil.cpu_count(logical=True),
"memory": psutil.virtual_memory().total,
"disk_size": psutil.disk_usage(get_default_project_directory()).total,
"ubridge_tc": None,
"ubridge_tap": None,
"ubridge_iol_tap": None,
"ubridge_bridge_tap": None,
}
async def test_get_reports_ubridge_tc(self, app: FastAPI, compute_client: AsyncClient, monkeypatch) -> None:
async def fake_probe():
return {"netem": "delay,rate", "ebpf": "1", "cbpf": "0", "ebpf_modes": "nth,quota,window,flow"}
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tc_capabilities", fake_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", _no_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", _no_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_bridge_tap_support", _no_tap_probe)
response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
assert response.status_code == status.HTTP_200_OK
assert response.json()["ubridge_tc"] == {
"netem": ["delay", "rate"],
"ebpf": True,
"ebpf_modes": ["nth", "quota", "window", "flow"],
"cbpf": False,
}
async def test_get_reports_ubridge_tap(self, app: FastAPI, compute_client: AsyncClient, monkeypatch) -> None:
"""
The tap capability is what makes a QEMU node kernel-eligible, so it
travels with the other compute capabilities.
"""
async def fake_tap_probe():
return True
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", fake_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", _no_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_bridge_tap_support", _no_tap_probe)
response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
assert response.status_code == status.HTTP_200_OK
assert response.json()["ubridge_tap"] is True
async def test_get_reports_ubridge_iol_tap(self, app: FastAPI, compute_client: AsyncClient, monkeypatch) -> None:
"""
The IOL-port TAP capability is what makes an IOU node kernel-eligible,
so it travels with the other compute capabilities.
"""
async def fake_iol_tap_probe():
return True
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", fake_iol_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", _no_tap_probe)
response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
assert response.status_code == status.HTTP_200_OK
assert response.json()["ubridge_iol_tap"] is True
async def test_get_reports_ubridge_bridge_tap(self, app: FastAPI, compute_client: AsyncClient, monkeypatch) -> None:
"""
The swappable-bridge-TAP-leg capability is what makes an IOL runner
container kernel-eligible, so it travels with the other compute
capabilities.
"""
async def fake_bridge_tap_probe():
return True
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_bridge_tap_support", fake_bridge_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_tap_support", _no_tap_probe)
monkeypatch.setattr("gns3server.api.routes.compute.capabilities.probe_iol_tap_support", _no_tap_probe)
response = await compute_client.get(app.url_path_for("compute:get_capabilities"))
assert response.status_code == status.HTTP_200_OK
assert response.json()["ubridge_bridge_tap"] is True