mirror of
https://github.com/GNS3/gns3-server.git
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95824b1861
_ubridge_apply_markers now installs only markers not already on the bridge (uBridge's reset_packet_filters preserves mark filters), so an NIO update no longer re-adds — and reopens — sibling markers' pcaps. _stop_ubridge clears _marker_filter_bridges so a node restart re-installs everything (the map would otherwise keep stale entries pointing at a fresh, empty uBridge).
318 lines
12 KiB
Python
318 lines
12 KiB
Python
# -*- coding: utf-8 -*-
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#
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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 os
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from collections import OrderedDict
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import pytest
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import pytest_asyncio
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from tests.utils import asyncio_patch, AsyncioMagicMock
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from unittest.mock import patch, MagicMock
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from gns3server.compute.vpcs.vpcs_vm import VPCSVM
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from gns3server.compute.docker.docker_vm import DockerVM
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from gns3server.compute.error import NodeError
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from gns3server.compute.vpcs import VPCS
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from gns3server.compute.nios.nio_udp import NIOUDP
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@pytest_asyncio.fixture(scope="function")
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async def manager(port_manager):
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m = VPCS.instance()
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m.port_manager = port_manager
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return m
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@pytest.fixture(scope="function")
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def node(compute_project, manager):
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return VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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def test_temporary_directory(compute_project, manager):
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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assert isinstance(node.temporary_directory, str)
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def test_console(compute_project, manager):
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node.console = 5011
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assert node.console == 5011
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node.console = None
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assert node.console is None
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def test_change_console_port(node, port_manager):
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port1 = port_manager.get_free_tcp_port(node.project)
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port2 = port_manager.get_free_tcp_port(node.project)
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port_manager.release_tcp_port(port1, node.project)
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port_manager.release_tcp_port(port2, node.project)
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node.console = port1
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node.console = port2
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assert node.console == port2
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port_manager.reserve_tcp_port(port1, node.project)
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def test_console_vnc_invalid(compute_project, manager):
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._console_type = "vnc"
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with pytest.raises(NodeError):
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node.console = 2012
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@pytest.mark.asyncio
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async def test_close(node, port_manager):
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assert node.console is not None
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aux = port_manager.get_free_tcp_port(node.project)
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port_manager.release_tcp_port(aux, node.project)
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node.aux = aux
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port = node.console
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assert await node.close()
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# Raise an exception if the port is not free
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port_manager.reserve_tcp_port(port, node.project)
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# Raise an exception if the port is not free
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port_manager.reserve_tcp_port(aux, node.project)
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assert node.console is None
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assert node.aux is None
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# Called twice closed should return False
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assert await node.close() is False
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def test_aux(compute_project, manager, port_manager):
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aux = port_manager.get_free_tcp_port(compute_project)
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port_manager.release_tcp_port(aux, compute_project)
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node = DockerVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager, "ubuntu", aux=aux, aux_type="telnet")
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assert node.aux == aux
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node.aux = None
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assert node.aux is None
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def test_allocate_aux(compute_project, manager):
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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assert node.aux is None
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# Docker has an aux port by default
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node = DockerVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager, "ubuntu", aux_type="telnet")
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assert node.aux is not None
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def test_change_aux_port(compute_project, manager, port_manager):
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node = DockerVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager, "ubuntu", aux_type="telnet")
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port1 = port_manager.get_free_tcp_port(node.project)
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port2 = port_manager.get_free_tcp_port(node.project)
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port_manager.release_tcp_port(port1, node.project)
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port_manager.release_tcp_port(port2, node.project)
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node.aux = port1
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node.aux = port2
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assert node.aux == port2
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port_manager.reserve_tcp_port(port1, node.project)
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@pytest.mark.asyncio
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async def test_update_ubridge_udp_connection(node):
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filters = {
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"latency": [10]
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}
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snio = NIOUDP(1245, "localhost", 1246)
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dnio = NIOUDP(1245, "localhost", 1244)
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dnio.filters = filters
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with asyncio_patch("gns3server.compute.base_node.BaseNode._ubridge_apply_filters") as mock:
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await node.update_ubridge_udp_connection('VPCS-10', snio, dnio)
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mock.assert_called_with("VPCS-10", filters)
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@pytest.mark.asyncio
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async def test_ubridge_apply_filters(node):
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filters = OrderedDict((
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('latency', [10]),
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('bpf', ["icmp[icmptype] == 8\ntcp src port 53"])
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))
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node._ubridge_send = AsyncioMagicMock()
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await node._ubridge_apply_filters("VPCS-10", filters)
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node._ubridge_send.assert_any_call("bridge reset_packet_filters VPCS-10")
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node._ubridge_send.assert_any_call("bridge add_packet_filter VPCS-10 filter0 latency 10")
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@pytest.mark.asyncio
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async def test_ubridge_apply_bpf_filters(node):
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filters = {
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"bpf": ["icmp[icmptype] == 8\ntcp src port 53"]
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}
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node._ubridge_send = AsyncioMagicMock()
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await node._ubridge_apply_filters("VPCS-10", filters)
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node._ubridge_send.assert_any_call("bridge reset_packet_filters VPCS-10")
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node._ubridge_send.assert_any_call("bridge add_packet_filter VPCS-10 filter0 bpf \"icmp[icmptype] == 8\"")
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node._ubridge_send.assert_any_call("bridge add_packet_filter VPCS-10 filter1 bpf \"tcp src port 53\"")
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@pytest.mark.asyncio
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async def test_set_marker_filter_state_off(compute_project, manager):
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._ubridge_send = AsyncioMagicMock()
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node._marker_filter_bridges["m", "L"] = "VPCS-10"
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await node._ubridge_set_marker_filter_state("m", False)
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node._ubridge_send.assert_called_with("bridge enable_packet_filter VPCS-10 m off")
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@pytest.mark.asyncio
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async def test_set_marker_filter_state_on(compute_project, manager):
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._ubridge_send = AsyncioMagicMock()
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node._marker_filter_bridges["m", "L"] = "VPCS-10"
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await node._ubridge_set_marker_filter_state("m", True)
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node._ubridge_send.assert_called_with("bridge enable_packet_filter VPCS-10 m on")
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@pytest.mark.asyncio
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async def test_marker_pause_sends_command(compute_project, manager):
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._ubridge_hypervisor = AsyncioMagicMock()
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await node._ubridge_marker_pause()
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node._ubridge_hypervisor.send.assert_called_with("marker pause")
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@pytest.mark.asyncio
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async def test_marker_resume_sends_command(compute_project, manager):
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._ubridge_hypervisor = AsyncioMagicMock()
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await node._ubridge_marker_resume()
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node._ubridge_hypervisor.send.assert_called_with("marker resume")
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@pytest.mark.asyncio
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async def test_apply_markers_turns_disabled_filter_off(compute_project, manager):
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# Part A: a disabled marker is installed (add_packet_filter) then turned off
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# with enable_packet_filter … off, and its bridge is recorded for toggling.
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._ubridge_send = AsyncioMagicMock()
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nio = NIOUDP(1234, "127.0.0.1", 4321)
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nio.markers = {"m": {"bpf": "icmp", "tag": None, "link_id": "L1", "direction": None, "enabled": False}}
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with patch("gns3server.compute.marker.marker_manager.MarkerManager") as mm:
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mm.instance.return_value.register = MagicMock()
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await node._ubridge_apply_markers("VPCS-10", nio)
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node._ubridge_send.assert_any_call("bridge enable_packet_filter VPCS-10 m off")
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assert node._marker_filter_bridges["m", "L1"] == "VPCS-10"
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@pytest.mark.asyncio
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async def test_delete_marker_capture_removes_pcap_and_entry(compute_project, manager):
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# Deleting a marker's capture removes its pcap and forgets the bridge entry.
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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markers_dir = compute_project.markers_working_directory()
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os.makedirs(markers_dir, exist_ok=True)
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node._marker_filter_bridges["m", "L1"] = "VPCS-10"
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pcap = os.path.join(markers_dir, f"{node.id}_L1_m.pcap")
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open(pcap, "wb").write(b"data")
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await node.delete_marker_capture("m", "L1")
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assert not os.path.exists(pcap)
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assert ("m", "L1") not in node._marker_filter_bridges
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@pytest.mark.asyncio
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async def test_delete_marker_capture_idempotent_when_missing(compute_project, manager):
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# No file on disk → must not raise, and still clears the entry.
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._marker_filter_bridges["m", "L1"] = "VPCS-10"
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await node.delete_marker_capture("m", "L1")
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assert ("m", "L1") not in node._marker_filter_bridges
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@pytest.mark.asyncio
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async def test_delete_marker_capture_sends_delete_filter(compute_project, manager):
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# With uBridge running, removing a marker issues a fine-grained
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# delete_packet_filter (not a bridge-wide reset) so sibling pcaps stay open.
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._ubridge_send = AsyncioMagicMock()
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node._ubridge_hypervisor = MagicMock()
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node._ubridge_hypervisor.is_running.return_value = True
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node._marker_filter_bridges["m", "L1"] = "VPCS-10"
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await node.delete_marker_capture("m", "L1")
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node._ubridge_send.assert_any_call("bridge delete_packet_filter VPCS-10 m")
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assert ("m", "L1") not in node._marker_filter_bridges
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@pytest.mark.asyncio
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async def test_rebuild_marker_filter_delete_then_add(compute_project, manager):
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# rebuild re-installs a single filter (delete_packet_filter + add) with the
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# new params, no bridge reset; enabled=False turns it off after re-add.
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._ubridge_send = AsyncioMagicMock()
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node._ubridge_hypervisor = MagicMock()
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node._ubridge_hypervisor.is_running.return_value = True
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node._marker_filter_bridges["m", "L1"] = "VPCS-10"
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await node.rebuild_marker_filter("m", "L1", "tcp", tag=7, direction="rx", enabled=False)
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cmds = [c.args[0] for c in node._ubridge_send.call_args_list]
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assert any("delete_packet_filter VPCS-10 m" in c for c in cmds)
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assert any("add_packet_filter VPCS-10 m mark" in c and "tcp" in c for c in cmds)
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assert any("enable_packet_filter VPCS-10 m off" in c for c in cmds)
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@pytest.mark.asyncio
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async def test_apply_markers_skips_already_installed(compute_project, manager):
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# Incremental apply: a marker already in _marker_filter_bridges is not
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# re-added (uBridge keeps it across reset), so its pcap isn't reopened.
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._ubridge_send = AsyncioMagicMock()
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node._marker_filter_bridges["m", "L1"] = "VPCS-10" # already installed
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nio = NIOUDP(1234, "127.0.0.1", 4321)
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nio.markers = {"m": {"bpf": "icmp", "tag": None, "link_id": "L1", "direction": None, "enabled": True}}
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with patch("gns3server.compute.marker.marker_manager.MarkerManager") as mm:
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mm.instance.return_value.register = MagicMock()
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await node._ubridge_apply_markers("VPCS-10", nio)
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cmds = [c.args[0] for c in node._ubridge_send.call_args_list]
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assert not any("add_packet_filter" in c for c in cmds) # skipped, not re-added
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@pytest.mark.asyncio
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async def test_stop_ubridge_clears_marker_bridges(compute_project, manager):
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# uBridge stopping drops every marker filter — the map must clear so the next
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# apply re-installs them instead of skipping as "already installed".
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node = VPCSVM("test", "00010203-0405-0607-0809-0a0b0c0d0e0f", compute_project, manager)
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node._marker_filter_bridges["m", "L1"] = "VPCS-10"
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await node._stop_ubridge()
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assert node._marker_filter_bridges == {}
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