mirror of
https://github.com/GNS3/gns3-server.git
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b4e4739d52
Consume uBridge's ebpf_modes contract (feature/tc-window 40c36ae): a
stateful mode is usable iff ebpf=1 and its token is listed; builds
predating the field keep their shipped modes (nth/quota/flow), so the
pre-correction window semantics can never be installed silently.
- gns3server/utils/tc_capabilities.py: shared reply parser, mode
policy and filter-type mappings (compute and controller gate on the
same rules)
- gns3server/compute/ubridge/tc_probe.py: standalone probe spawning a
throwaway uBridge as the server's own user, cached by binary
identity (path/mtime/size - the version string cannot distinguish
rebuilds); failures cache as unknown
- GET /v3/compute/capabilities gains ubridge_tc {netem, ebpf,
ebpf_modes, cbpf}; the controller forwards it (Compute.capabilities)
and available_filters hides kernel-datapath filter types an endpoint
compute cannot run (both ends apply their own filters, so one
incapable compute hides the type); computes without a report keep
the full list and apply-time 409 stays the guard
- docker: _ubridge_apply_ebpf_drops gates per mode token; the cleanup
path only sends "off" for modes the build declares
- split DockerVM's kernel-datapath machinery (veth lifecycle, carrier,
marker primitives, tc filter translation, kernel NIO teardown) into
compute/docker/docker_kernel_datapath.py (DockerKernelDatapathMixin)
53 lines
2.1 KiB
Python
53 lines
2.1 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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from typing import List, Optional
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from pydantic import BaseModel, Field
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from .nodes import NodeType
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class UbridgeTcCapabilities(BaseModel):
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"""
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uBridge tc-module capabilities (kernel-datapath packet filters), probed
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by the compute as its own user.
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"""
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netem: List[str] = Field(..., description="netem keywords supported by this uBridge's tc module")
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ebpf: bool = Field(..., description="Whether the eBPF stateful classifier loads on this host")
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ebpf_modes: List[str] = Field(
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..., description="eBPF classifier modes usable on this host (ebpf is on and the mode token is declared)"
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)
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cbpf: bool = Field(..., description="Whether classic-BPF match-drop classifiers are available")
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class Capabilities(BaseModel):
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"""
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Capabilities properties.
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"""
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version: str = Field(..., description="Compute version number")
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node_types: List[NodeType] = Field(..., description="Node types supported by the compute")
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platform: str = Field(..., description="Platform where the compute is running")
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cpus: int = Field(..., description="Number of CPUs on this compute")
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memory: int = Field(..., description="Amount of memory on this compute")
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disk_size: int = Field(..., description="Disk size on this compute")
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ubridge_tc: Optional[UbridgeTcCapabilities] = Field(
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None, description="uBridge tc-module capabilities; absent when the probe failed or uBridge has no tc module"
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)
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