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gns3-server/tests/controller/test_udp_link.py

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#!/usr/bin/env python
#
# Copyright (C) 2016 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 pytest
import asyncio
import aiohttp
from unittest.mock import MagicMock
from tests.utils import AsyncioMagicMock
from gns3server.controller.project import Project
from gns3server.controller.udp_link import UDPLink
from gns3server.controller.ports.ethernet_port import EthernetPort
from gns3server.controller.node import Node
@pytest.fixture
def project(controller):
return Project(controller=controller, name="Test")
def test_create(async_run, project):
compute1 = MagicMock()
compute2 = MagicMock()
node1 = Node(project, compute1, "node1", node_type="vpcs")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute2, "node2", node_type="vpcs")
node2._ports = [EthernetPort("E0", 0, 3, 1)]
async def subnet_callback(compute2):
"""
Fake subnet callback
"""
return ("192.168.1.1", "192.168.1.2")
compute1.get_ip_on_same_subnet.side_effect = subnet_callback
link = UDPLink(project)
async_run(link.add_node(node1, 0, 4))
async_run(link.update_filters({"latency": [10]}))
async def compute1_callback(path, data={}, **kwargs):
"""
Fake server
"""
if "/ports/udp" in path:
response = MagicMock()
response.json = {"udp_port": 1024}
return response
async def compute2_callback(path, data={}, **kwargs):
"""
Fake server
"""
if "/ports/udp" in path:
response = MagicMock()
response.json = {"udp_port": 2048}
return response
compute1.post.side_effect = compute1_callback
compute1.host = "example.com"
compute2.post.side_effect = compute2_callback
compute2.host = "example.org"
async_run(link.add_node(node2, 3, 1))
compute1.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/0/ports/4/nio".format(project.id, node1.id), data={
"lport": 1024,
"rhost": "192.168.1.2",
"rport": 2048,
"type": "nio_udp",
"filters": {"latency": [10]},
"suspend": False,
}, timeout=120)
compute2.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/3/ports/1/nio".format(project.id, node2.id), data={
"lport": 2048,
"rhost": "192.168.1.1",
"rport": 1024,
"type": "nio_udp",
"filters": {},
"suspend": False,
}, timeout=120)
def test_create_one_side_failure(async_run, project):
compute1 = MagicMock()
compute2 = MagicMock()
node1 = Node(project, compute1, "node1", node_type="vpcs")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute2, "node2", node_type="vpcs")
node2._ports = [EthernetPort("E0", 0, 3, 1)]
async def subnet_callback(compute2):
"""
Fake subnet callback
"""
return ("192.168.1.1", "192.168.1.2")
compute1.get_ip_on_same_subnet.side_effect = subnet_callback
link = UDPLink(project)
async_run(link.add_node(node1, 0, 4))
async def compute1_callback(path, data={}, **kwargs):
"""
Fake server
"""
if "/ports/udp" in path:
response = MagicMock()
response.json = {"udp_port": 1024}
return response
async def compute2_callback(path, data={}, **kwargs):
"""
Fake server
"""
if "/ports/udp" in path:
response = MagicMock()
response.json = {"udp_port": 2048}
return response
elif "/adapters" in path:
raise aiohttp.web.HTTPConflict(text="Error when creating the NIO")
compute1.post.side_effect = compute1_callback
compute1.host = "example.com"
compute2.post.side_effect = compute2_callback
compute2.host = "example.org"
with pytest.raises(aiohttp.web.HTTPConflict):
async_run(link.add_node(node2, 3, 1))
compute1.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/0/ports/4/nio".format(project.id, node1.id), data={
"lport": 1024,
"rhost": "192.168.1.2",
"rport": 2048,
"type": "nio_udp",
"filters": {},
"suspend": False,
}, timeout=120)
compute2.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/3/ports/1/nio".format(project.id, node2.id), data={
"lport": 2048,
"rhost": "192.168.1.1",
"rport": 1024,
"type": "nio_udp",
"filters": {},
"suspend": False,
}, timeout=120)
# The link creation has failed we rollback the nio
compute1.delete.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/0/ports/4/nio".format(project.id, node1.id), timeout=120)
def test_delete(async_run, project):
compute1 = MagicMock()
compute2 = MagicMock()
node1 = Node(project, compute1, "node1", node_type="vpcs")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute2, "node2", node_type="vpcs")
node2._ports = [EthernetPort("E0", 0, 3, 1)]
link = UDPLink(project)
link.create = AsyncioMagicMock()
async_run(link.add_node(node1, 0, 4))
async_run(link.add_node(node2, 3, 1))
async_run(link.delete())
compute1.delete.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/0/ports/4/nio".format(project.id, node1.id), timeout=120)
compute2.delete.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/3/ports/1/nio".format(project.id, node2.id), timeout=120)
def test_choose_capture_side(async_run, project):
"""
The link capture should run on the optimal node
"""
compute1 = MagicMock()
compute2 = MagicMock()
compute2.id = "local"
# Capture should run on the local node
node_vpcs = Node(project, compute1, "node1", node_type="vpcs")
node_vpcs._status = "started"
node_vpcs._ports = [EthernetPort("E0", 0, 0, 4)]
node_iou = Node(project, compute2, "node2", node_type="iou")
node_iou._status = "started"
node_iou._ports = [EthernetPort("E0", 0, 3, 1)]
link = UDPLink(project)
link.create = AsyncioMagicMock()
async_run(link.add_node(node_vpcs, 0, 4))
async_run(link.add_node(node_iou, 3, 1))
assert link._choose_capture_side()["node"] == node_iou
# Capture should choose always running node
node_iou = Node(project, compute1, "node5", node_type="iou")
node_iou._status = "started"
node_iou._ports = [EthernetPort("E0", 0, 0, 4)]
node_switch = Node(project, compute1, "node6", node_type="ethernet_switch")
node_switch._status = "started"
node_switch._ports = [EthernetPort("E0", 0, 3, 1)]
link = UDPLink(project)
link.create = AsyncioMagicMock()
async_run(link.add_node(node_iou, 0, 4))
async_run(link.add_node(node_switch, 3, 1))
assert link._choose_capture_side()["node"] == node_switch
# Capture should raise error if node are not started
node_vpcs = Node(project, compute1, "node1", node_type="vpcs")
node_vpcs._ports = [EthernetPort("E0", 0, 0, 4)]
node_iou = Node(project, compute2, "node2", node_type="iou")
node_iou._ports = [EthernetPort("E0", 0, 3, 1)]
link = UDPLink(project)
link.create = AsyncioMagicMock()
async_run(link.add_node(node_vpcs, 0, 4))
async_run(link.add_node(node_iou, 3, 1))
with pytest.raises(aiohttp.web.HTTPConflict):
link._choose_capture_side()
# If you start a node you can capture on it
node_vpcs._status = "started"
assert link._choose_capture_side()["node"] == node_vpcs
def test_capture(async_run, project):
compute1 = MagicMock()
node_vpcs = Node(project, compute1, "V1", node_type="vpcs")
node_vpcs._status = "started"
node_vpcs._ports = [EthernetPort("E0", 0, 0, 4)]
node_iou = Node(project, compute1, "I1", node_type="iou")
node_iou._ports = [EthernetPort("E0", 0, 3, 1)]
link = UDPLink(project)
link.create = AsyncioMagicMock()
async_run(link.add_node(node_vpcs, 0, 4))
async_run(link.add_node(node_iou, 3, 1))
capture = async_run(link.start_capture())
assert link.capturing
compute1.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/0/ports/4/start_capture".format(project.id, node_vpcs.id), data={
"capture_file_name": link.default_capture_file_name(),
"data_link_type": "DLT_EN10MB"
})
capture = async_run(link.stop_capture())
assert link.capturing is False
compute1.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/0/ports/4/stop_capture".format(project.id, node_vpcs.id))
def test_read_pcap_from_source(project, async_run):
compute1 = MagicMock()
node_vpcs = Node(project, compute1, "V1", node_type="vpcs")
node_vpcs._status = "started"
node_vpcs._ports = [EthernetPort("E0", 0, 0, 4)]
node_iou = Node(project, compute1, "I1", node_type="iou")
node_iou._ports = [EthernetPort("E0", 0, 3, 1)]
link = UDPLink(project)
link.create = AsyncioMagicMock()
async_run(link.add_node(node_vpcs, 0, 4))
async_run(link.add_node(node_iou, 3, 1))
capture = async_run(link.start_capture())
assert link._capture_node is not None
async_run(link.read_pcap_from_source())
link._capture_node["node"].compute.stream_file.assert_called_with(project, "tmp/captures/" + link._capture_file_name)
def test_node_updated(project, async_run):
"""
If a node stop when capturing we stop the capture
"""
compute1 = MagicMock()
node_vpcs = Node(project, compute1, "V1", node_type="vpcs")
node_vpcs._status = "started"
link = UDPLink(project)
link._capture_node = {"node": node_vpcs}
link.stop_capture = AsyncioMagicMock()
async_run(link.node_updated(node_vpcs))
assert not link.stop_capture.called
node_vpcs._status = "stopped"
async_run(link.node_updated(node_vpcs))
assert link.stop_capture.called
def test_update(async_run, project):
compute1 = MagicMock()
compute2 = MagicMock()
node1 = Node(project, compute1, "node1", node_type="vpcs")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute2, "node2", node_type="vpcs")
node2._ports = [EthernetPort("E0", 0, 3, 1)]
async def subnet_callback(compute2):
"""
Fake subnet callback
"""
return ("192.168.1.1", "192.168.1.2")
compute1.get_ip_on_same_subnet.side_effect = subnet_callback
link = UDPLink(project)
async_run(link.add_node(node1, 0, 4))
async_run(link.update_filters({"latency": [10]}))
async def compute1_callback(path, data={}, **kwargs):
"""
Fake server
"""
if "/ports/udp" in path:
response = MagicMock()
response.json = {"udp_port": 1024}
return response
async def compute2_callback(path, data={}, **kwargs):
"""
Fake server
"""
if "/ports/udp" in path:
response = MagicMock()
response.json = {"udp_port": 2048}
return response
compute1.post.side_effect = compute1_callback
compute1.host = "example.com"
compute2.post.side_effect = compute2_callback
compute2.host = "example.org"
async_run(link.add_node(node2, 3, 1))
compute1.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/0/ports/4/nio".format(project.id, node1.id), data={
"lport": 1024,
"rhost": "192.168.1.2",
"rport": 2048,
"type": "nio_udp",
"suspend": False,
"filters": {"latency": [10]}
}, timeout=120)
compute2.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/3/ports/1/nio".format(project.id, node2.id), data={
"lport": 2048,
"rhost": "192.168.1.1",
"rport": 1024,
"type": "nio_udp",
"suspend": False,
"filters": {}
}, timeout=120)
assert link.created
async_run(link.update_filters({"drop": [5], "bpf": ["icmp[icmptype] == 8"]}))
compute1.put.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/0/ports/4/nio".format(project.id, node1.id), data={
"lport": 1024,
"rhost": "192.168.1.2",
"rport": 2048,
"type": "nio_udp",
"suspend": False,
"filters": {
"drop": [5],
"bpf": ["icmp[icmptype] == 8"]
}
}, timeout=120)
def test_update_suspend(async_run, project):
compute1 = MagicMock()
compute2 = MagicMock()
node1 = Node(project, compute1, "node1", node_type="vpcs")
node1._ports = [EthernetPort("E0", 0, 0, 4)]
node2 = Node(project, compute2, "node2", node_type="vpcs")
node2._ports = [EthernetPort("E0", 0, 3, 1)]
async def subnet_callback(compute2):
"""
Fake subnet callback
"""
return ("192.168.1.1", "192.168.1.2")
compute1.get_ip_on_same_subnet.side_effect = subnet_callback
link = UDPLink(project)
async_run(link.add_node(node1, 0, 4))
async_run(link.update_filters({"latency": [10]}))
async_run(link.update_suspend(True))
async def compute1_callback(path, data={}, **kwargs):
"""
Fake server
"""
if "/ports/udp" in path:
response = MagicMock()
response.json = {"udp_port": 1024}
return response
async def compute2_callback(path, data={}, **kwargs):
"""
Fake server
"""
if "/ports/udp" in path:
response = MagicMock()
response.json = {"udp_port": 2048}
return response
compute1.post.side_effect = compute1_callback
compute1.host = "example.com"
compute2.post.side_effect = compute2_callback
compute2.host = "example.org"
async_run(link.add_node(node2, 3, 1))
compute1.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/0/ports/4/nio".format(project.id, node1.id), data={
"lport": 1024,
"rhost": "192.168.1.2",
"rport": 2048,
"type": "nio_udp",
"filters": {"frequency_drop": [-1]},
"suspend": True
}, timeout=120)
compute2.post.assert_any_call("/projects/{}/vpcs/nodes/{}/adapters/3/ports/1/nio".format(project.id, node2.id), data={
"lport": 2048,
"rhost": "192.168.1.1",
"rport": 1024,
"type": "nio_udp",
"filters": {},
"suspend": True
}, timeout=120)
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