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Code Issues Releases Wiki Activity

Repair VirtualBox VM support

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Fix #650
This commit is contained in:
Julien Duponchelle 2016-08-30 16:38:19 +02:00
parent 3bff094238
commit 5fdd33fe3b
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GPG Key ID: CE8B29639E07F5E8
4 changed files with 114 additions and 39 deletions
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5
gns3server/controller/gns3vm/__init__.py
View File

@ -217,7 +217,10 @@ class GNS3VM:
@asyncio.coroutine
def auto_stop_vm(self):
if self.enable and self.auto_stop:
yield from self._stop()
try:
yield from self._stop()
except GNS3VMError as e:
log.warn(str(e))
@asyncio.coroutine
def _start(self):

88
gns3server/controller/gns3vm/virtualbox_gns3_vm.py
View File

@ -15,6 +15,8 @@
# 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 json.decoder
import aiohttp
import logging
import asyncio
import socket
@ -34,8 +36,8 @@ class VirtualBoxGNS3VM(BaseGNS3VM):
def __init__(self, controller):
super().__init__(controller)
self._engine = "virtualbox"
super().__init__(controller)
self._virtualbox_manager = VirtualBox()
@asyncio.coroutine
@ -43,7 +45,7 @@ class VirtualBoxGNS3VM(BaseGNS3VM):
try:
result = yield from self._virtualbox_manager.execute(subcommand, args, timeout)
return (''.join(result))
return ("\n".join(result))
except VirtualBoxError as e:
raise GNS3VMError("Error while executing VBoxManage command: {}".format(e))
@ -157,20 +159,20 @@ class VirtualBoxGNS3VM(BaseGNS3VM):
# get a NAT interface number
nat_interface_number = yield from self._look_for_interface("nat")
if nat_interface_number < 0:
raise GNS3VMError("The GNS3 VM must have a NAT interface configured in order to start")
raise GNS3VMError("The GNS3 VM: {} must have a NAT interface configured in order to start".format(self.vmname))
hostonly_interface_number = yield from self._look_for_interface("hostonly")
if hostonly_interface_number < 0:
raise GNS3VMError("The GNS3 VM must have a host only interface configured in order to start")
raise GNS3VMError("The GNS3 VM: {} must have a host only interface configured in order to start".format(self.vmname))
vboxnet = yield from self._look_for_vboxnet(hostonly_interface_number)
if vboxnet is None:
raise GNS3VMError("VirtualBox host-only network could not be found for interface {}".format(hostonly_interface_number))
raise GNS3VMError("VirtualBox host-only network could not be found for interface {} on GNS3 VM".format(hostonly_interface_number))
if not (yield from self._check_dhcp_server(vboxnet)):
raise GNS3VMError("DHCP must be enabled on VirtualBox host-only network: {}".format(vboxnet))
raise GNS3VMError("DHCP must be enabled on VirtualBox host-only network: {} for GNS3 VM".format(vboxnet))
vm_state = yield from self._get_vbox_vm_state()
vm_state = yield from self._get_state()
log.info('"{}" state is {}'.format(self._vmname, vm_state))
if vm_state in ("poweroff", "saved"):
# start the VM if it is not running
@ -178,15 +180,13 @@ class VirtualBoxGNS3VM(BaseGNS3VM):
if self._headless:
args.extend(["--type", "headless"])
yield from self._execute("startvm", args)
log.info("GNS3 VM has been started")
self.running = True
ip_address = "127.0.0.1"
try:
# get a random port on localhost
with socket.socket() as s:
s.bind((ip_address, 0))
port = s.getsockname()[1]
api_port = s.getsockname()[1]
except OSError as e:
raise GNS3VMError("Error while getting random port: {}".format(e))
@ -196,39 +196,51 @@ class VirtualBoxGNS3VM(BaseGNS3VM):
yield from self._execute("controlvm", [self._vmname, "natpf{}".format(nat_interface_number), "delete", "GNS3VM"])
# add a GNS3VM NAT port forwarding rule to redirect 127.0.0.1 with random port to port 3080 in the VM
log.info("Adding GNS3VM NAT port forwarding rule with port {} to interface {}".format(port, nat_interface_number))
log.info("Adding GNS3VM NAT port forwarding rule with port {} to interface {}".format(api_port, nat_interface_number))
yield from self._execute("controlvm", [self._vmname, "natpf{}".format(nat_interface_number),
"GNS3VM,tcp,{},{},,3080".format(ip_address, port)])
"GNS3VM,tcp,{},{},,3080".format(ip_address, api_port)])
original_port = self.port
self.port = port
self.ip_address = yield from self._get_ip(hostonly_interface_number, api_port)
self.port = 3080
log.info("GNS3 VM has been started with IP {}".format(self.ip_address))
self.running = True
# TODO: retrieve interfaces on server
# # ask the server all a list of all its interfaces along with IP addresses
# status, json_data = self._waitForServer(vm_server, "interfaces", retry=120)
# if status == 401:
# self.error.emit("Wrong user or password for the GNS3 VM".format(status), True)
# return False
# if status != 200:
# msg = "Server {} has replied with status code {} when retrieving the network interfaces".format(
# vm_server.url(), status)
# log.error(msg)
# self.error.emit(msg, True)
# return False
@asyncio.coroutine
def _get_ip(self, hostonly_interface_number, api_port):
"""
Get the IP from VirtualBox.
# find the ip address for the first hostonly interface
hostonly_ip_address_found = False
for interface in json_data:
if "name" in interface and interface["name"] == "eth{}".format(hostonly_interface_number - 1):
if "ip_address" in interface:
self.ip_address = interface["ip_address"]
self.port = original_port
log.info("GNS3 VM IP address set to {}".format(interface["ip_address"]))
hostonly_ip_address_found = True
break
Due to VirtualBox limitation the only way is to send request each
second to a GNS3 endpoint in order to get the list of the interfaces and
their IP and after that match it with VirtualBox host only.
"""
remaining_try = 240
while remaining_try > 0:
json_data = None
session = aiohttp.ClientSession()
try:
resp = None
resp = yield from session.get('http://127.0.0.1:{}/v2/compute/network/interfaces'.format(api_port))
except OSError:
pass
if not hostonly_ip_address_found:
raise GNS3VMError("Not IP address could be found in the GNS3 VM for eth{}".format(hostonly_interface_number - 1))
if resp:
try:
json_data = yield from resp.json()
except json.decoder.JSONDecodeError:
pass
resp.close()
session.close()
if json_data:
for interface in json_data:
if "name" in interface and interface["name"] == "eth{}".format(hostonly_interface_number - 1):
if "ip_address" in interface:
return interface["ip_address"]
remaining_try -= 1
yield from asyncio.sleep(1)
raise GNS3VMError("Could not get the GNS3 VM ip make sure the VM receive an IP from VirtualBox")
@asyncio.coroutine
def stop(self):

1
gns3server/run.py
View File

@ -107,6 +107,7 @@ def parse_arguments(argv):
parser.add_argument("--daemon", action="store_true", help="start as a daemon")
parser.add_argument("--pid", help="store process pid")
parser.add_argument("--profil", help="Settings profil (blank will use default settings files)")
parser.add_argument("--discovery", action="store_true", help="Make server discoverable on the network")
args = parser.parse_args(argv)
if args.config:

59
tests/controller/gns3vm/test_virtualbox_gns3_vm.py Normal file
View File

@ -0,0 +1,59 @@
#!/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
from tests.utils import asyncio_patch
from gns3server.controller.gns3vm.virtualbox_gns3_vm import VirtualBoxGNS3VM
@pytest.fixture
def gns3vm(controller):
vm = VirtualBoxGNS3VM(controller)
vm.vmname = "GNS3 VM"
return vm
def test_look_for_interface(gns3vm, async_run):
showvminfo = """
nic1="hostonly"
nictype1="82540EM"
nicspeed1="0"
nic2="nat"
nictype2="82540EM"
nicspeed2="0"
nic3="none"
nic4="none"
nic5="none"
nic6="none"
nic7="none"
nic8="none"
vcpwidth=1024
vcpheight=768
vcprate=512
vcpfps=25
GuestMemoryBalloon=0
"""
with asyncio_patch("gns3server.controller.gns3vm.virtualbox_gns3_vm.VirtualBoxGNS3VM._execute", return_value=showvminfo) as mock:
res = async_run(gns3vm._look_for_interface("nat"))
mock.assert_called_with('showvminfo', ['GNS3 VM', '--machinereadable'])
assert res == 2
with asyncio_patch("gns3server.controller.gns3vm.virtualbox_gns3_vm.VirtualBoxGNS3VM._execute", return_value=showvminfo) as mock:
res = async_run(gns3vm._look_for_interface("dummy"))
assert res == -1