mirror of
https://github.com/GNS3/gns3-server.git
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d2e9823e6c
Add compute-side marker subsystem that receives ubridge UDP MARK signals
and forwards them as project-scoped notifications to the web UI for
real-time traffic coloring. Matched packets are always saved to per-link
pcaps for future replay.
Key components:
- gns3server/compute/marker/: MarkerManager (singleton, UDP listener +
O(1) registry keyed by (node_id, filter_name)) + MarkerListener
(DatagramProtocol parsing MARK lines per ubridge integration contract)
- gns3server/compute/base_node.py: marker sink/node config at ubridge
startup; shared _ubridge_add_marker_filter / _ubridge_delete_marker_filter
- Per-node start_marker/stop_marker: VPCS (VPCS-{id}), QEMU
(QEMU-{id}-{adapter}), Docker (bridge{adapter})
- Compute REST /markers/start + /markers/stop (vpcs/qemu/docker route files)
- Controller Link._markers state + UDPLink.start_marker/stop_marker/
update_marker (mirror capture pattern: BPF validation, _choose_capture_side,
node.post forwarding, topology persistence)
- Controller REST GET/POST/DELETE/PUT /v3/projects/{p}/links/{l}/markers
- Config: marker_listen_host / marker_listen_port in ServerSettings
- Signal routing: creation-time registry O(1) lookup, no node-table scan;
project-scoped WS stream (not global); event payload always carries
project_id for frontend scoping
Tests: 14 unit tests (registry, listener parsing, UDP round-trip);
562 existing tests pass with zero regressions.
25 lines
1.0 KiB
Python
25 lines
1.0 KiB
Python
#!/usr/bin/env python
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#
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# Copyright (C) 2024 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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#
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# Traffic-insight marker subsystem (compute side).
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#
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# ubridge's ``marker`` module is a passive tap: on a BPF match it emits a UDP
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# ``MARK`` signal to a configured sink and/or appends the packet to a pcap.
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# This package owns the compute-side UDP sink: one listener per compute process
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# serves every ubridge on that host, disambiguated by ``node=<id>``.
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