mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-25 01:38:08 +00:00
125 lines
4.6 KiB
Python
125 lines
4.6 KiB
Python
#!/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 asyncio
|
||
import aiohttp
|
||
|
||
|
||
from .link import Link
|
||
|
||
|
||
class UDPLink(Link):
|
||
|
||
def __init__(self, project):
|
||
super().__init__(project)
|
||
self._capture_vm = None
|
||
|
||
@asyncio.coroutine
|
||
def create(self):
|
||
"""
|
||
Create the link on the VMs
|
||
"""
|
||
|
||
vm1 = self._vms[0]["vm"]
|
||
adapter_number1 = self._vms[0]["adapter_number"]
|
||
port_number1 = self._vms[0]["port_number"]
|
||
vm2 = self._vms[1]["vm"]
|
||
adapter_number2 = self._vms[1]["adapter_number"]
|
||
port_number2 = self._vms[1]["port_number"]
|
||
|
||
# Reserve a UDP port on both side
|
||
response = yield from vm1.compute.post("/projects/{}/ports/udp".format(self._project.id))
|
||
self._vm1_port = response.json["udp_port"]
|
||
response = yield from vm2.compute.post("/projects/{}/ports/udp".format(self._project.id))
|
||
self._vm2_port = response.json["udp_port"]
|
||
|
||
# Create the tunnel on both side
|
||
data = {
|
||
"lport": self._vm1_port,
|
||
"rhost": vm2.compute.host,
|
||
"rport": self._vm2_port,
|
||
"type": "nio_udp"
|
||
}
|
||
yield from vm1.post("/adapters/{adapter_number}/ports/{port_number}/nio".format(adapter_number=adapter_number1, port_number=port_number1), data=data)
|
||
|
||
data = {
|
||
"lport": self._vm2_port,
|
||
"rhost": vm1.compute.host,
|
||
"rport": self._vm1_port,
|
||
"type": "nio_udp"
|
||
}
|
||
yield from vm2.post("/adapters/{adapter_number}/ports/{port_number}/nio".format(adapter_number=adapter_number2, port_number=port_number2), data=data)
|
||
|
||
@asyncio.coroutine
|
||
def delete(self):
|
||
"""
|
||
Delete the link and free the ressources
|
||
"""
|
||
vm1 = self._vms[0]["vm"]
|
||
adapter_number1 = self._vms[0]["adapter_number"]
|
||
port_number1 = self._vms[0]["port_number"]
|
||
vm2 = self._vms[1]["vm"]
|
||
adapter_number2 = self._vms[1]["adapter_number"]
|
||
port_number2 = self._vms[1]["port_number"]
|
||
|
||
yield from vm1.delete("/adapters/{adapter_number}/ports/{port_number}/nio".format(adapter_number=adapter_number1, port_number=port_number1))
|
||
yield from vm2.delete("/adapters/{adapter_number}/ports/{port_number}/nio".format(adapter_number=adapter_number2, port_number=port_number2))
|
||
|
||
@asyncio.coroutine
|
||
def start_capture(self, data_link_type="DLT_EN10MB"):
|
||
"""
|
||
Start capture on a link
|
||
"""
|
||
self._capture_vm = self._choose_capture_side()
|
||
data = {
|
||
"capture_file_name": self.capture_file_name(),
|
||
"data_link_type": data_link_type
|
||
}
|
||
yield from self._capture_vm["vm"].post("/adapters/{adapter_number}/ports/{port_number}/start_capture".format(adapter_number=self._capture_vm["adapter_number"], port_number=self._capture_vm["port_number"]), data=data)
|
||
self._capturing = True
|
||
|
||
@asyncio.coroutine
|
||
def stop_capture(self):
|
||
"""
|
||
Stop capture on a link
|
||
"""
|
||
if self._capture_vm:
|
||
yield from self._capture_vm["vm"].post("/adapters/{adapter_number}/ports/{port_number}/stop_capture".format(adapter_number=self._capture_vm["adapter_number"], port_number=self._capture_vm["port_number"]))
|
||
self._capture_vm = None
|
||
self._capturing = False
|
||
|
||
def _choose_capture_side(self):
|
||
"""
|
||
Run capture on the best candidate.
|
||
|
||
The ideal candidate is a node who support capture on controller
|
||
server
|
||
|
||
:returns: VM where the capture should run
|
||
"""
|
||
|
||
# For saving bandwith we use the local node first
|
||
for vm in self._vms:
|
||
if vm["vm"].compute.id == "local" and vm["vm"].vm_type not in ["qemu", "vpcs"]:
|
||
return vm
|
||
|
||
for vm in self._vms:
|
||
if vm["vm"].vm_type not in ["qemu", "vpcs"]:
|
||
return vm
|
||
|
||
raise aiohttp.web.HTTPConflict(text="Capture is not supported for this link")
|