mirror of
https://github.com/GNS3/gns3-server.git
synced 2026-10-13 05:55:35 +03:00
187201a08c
Kernel eligibility becomes "both endpoints on one compute, each able to anchor": Docker always (adapters are born as veth pairs), QEMU when that compute's uBridge can create the persistent TAPs its adapters anchor on. The question is asked per compute, because the link needs both ends anchored -- so a mixed or half-upgraded deployment degrades to the relay instead of failing an attach. probe_tap_support() creates and deletes one throwaway persistent TAP through a scratch uBridge, cached by binary identity like the tc report; /capabilities exposes `ubridge_tap` (absent = unknown, which keeps links on the relay). The compute route for a QEMU adapter NIO took UDPNIO only, so a kernel link was rejected with 422: its body and response now accept Union[UDPNIO, BridgeNIO] exactly like Docker's. Stale "Docker-to-Docker" wording in the config, link and MCP descriptions now talks about anchors, and docs/features/qemu-kernel-datapath.md documents the datapath -- verified end-to-end on a real instance: 32/32 kernel-datapath checks and 29/29 on the relay variant.
73 lines
2.5 KiB
Python
73 lines
2.5 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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"""
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API routes for capabilities
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"""
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import sys
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import psutil
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from fastapi import APIRouter, Request
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from gns3server import schemas
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from gns3server.compute import MODULES
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from gns3server.compute.ubridge.tc_probe import probe_tc_capabilities, probe_tap_support
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from gns3server.utils.path import get_default_project_directory
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from gns3server.utils.tc_capabilities import usable_ebpf_modes
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from gns3server.version import __version__
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router = APIRouter()
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@router.get("/capabilities", response_model=schemas.Capabilities)
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async def get_capabilities(request: Request) -> dict:
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node_types = []
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for module in MODULES:
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node_types.extend(module.node_types())
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# Kernel-datapath packet filters: what this host's uBridge can run,
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# probed as the server's own user (None = unknown, old/missing uBridge).
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ubridge_tc = None
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caps = await probe_tc_capabilities()
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if caps:
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ubridge_tc = {
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"netem": [keyword for keyword in caps.get("netem", "").split(",") if keyword],
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"ebpf": caps.get("ebpf") == "1",
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"ebpf_modes": list(usable_ebpf_modes(caps)),
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"cbpf": caps.get("cbpf") == "1",
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}
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# Persistent TAP support: the anchor QEMU adapters need for the kernel
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# datapath. None = unknown (probe failed or uBridge too old).
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ubridge_tap = await probe_tap_support()
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# record the controller hostname or IP address
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if request.client:
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request.app.state.controller_host = request.client.host
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return {
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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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"node_types": node_types,
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"ubridge_tc": ubridge_tc,
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"ubridge_tap": ubridge_tap,
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}
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