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gns3-server
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Base for supporting VMnet adapters.

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pull/189/head
Jeremy 9 years ago
parent cb7b9e8190
commit 0287b4607d
2 changed files with 247 additions and 30 deletions
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24
gns3server/modules/vmware/__init__.py
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@ -25,6 +25,7 @@ import shutil
import asyncio
import subprocess
import logging
from collections import OrderedDict
log = logging.getLogger(__name__)
@ -137,7 +138,7 @@ class VMware(BaseManager):
:returns: dict
"""
pairs = {}
pairs = OrderedDict()
with open(path, encoding="utf-8") as f:
for line in f.read().splitlines():
try:
@ -147,6 +148,25 @@ class VMware(BaseManager):
continue
return pairs
@staticmethod
def write_vmx_file(path, pairs):
"""
Write a VMware VMX file.
:param path: path to the VMX file
:param pairs: settings to write
"""
with open(path, "w", encoding="utf-8") as f:
if sys.platform.startswith("linux"):
# write the shebang on the first line on Linux
vmware_path = shutil.which("vmware")
if vmware_path:
f.write("#!{}\n".format(vmware_path))
for key, value in pairs.items():
entry = '{} = "{}"\n'.format(key, value)
f.write(entry)
def _get_vms_from_inventory(self, inventory_path):
"""
Searches for VMs by parsing a VMware inventory file.
@ -175,7 +195,7 @@ class VMware(BaseManager):
for vm_settings in vm_entries.values():
if "DisplayName" in vm_settings and "config" in vm_settings:
log.debug('Found VM named "{}" with VMX file "{}"'.format(vm_settings["displayName"], vm_settings["config"]))
log.debug('Found VM named "{}" with VMX file "{}"'.format(vm_settings["DisplayName"], vm_settings["config"]))
vms.append({"vmname": vm_settings["DisplayName"], "vmx_path": vm_settings["config"]})
return vms

253
gns3server/modules/vmware/vmware_vm.py
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@ -20,31 +20,30 @@ VMware VM instance.
"""
import sys
import shlex
import re
import os
import tempfile
import json
import socket
import re
import subprocess
import configparser
import shutil
import asyncio
from gns3server.utils.interfaces import interfaces
from gns3server.utils.asyncio import wait_for_process_termination
from gns3server.utils.asyncio import monitor_process
from pkg_resources import parse_version
from .vmware_error import VMwareError
from ..nios.nio_udp import NIOUDP
from ..adapters.ethernet_adapter import EthernetAdapter
from ..base_vm import BaseVM
import logging
log = logging.getLogger(__name__)
VMX_ETHERNET_TEMPLATE = """
ethernet{number}.present = "TRUE"
ethernet{number}.connectionType = "hostonly"
ethernet{number}.addressType = "generated"
ethernet{number}.generatedAddressOffset = "0"
ethernet{number}.autoDetect = "TRUE"
"""
class VMwareVM(BaseVM):
@ -57,6 +56,8 @@ class VMwareVM(BaseVM):
super().__init__(name, vm_id, project, manager, console=console)
self._linked_clone = linked_clone
self._ubridge_process = None
self._ubridge_stdout_file = ""
self._closed = False
# VMware VM settings
@ -91,6 +92,26 @@ class VMwareVM(BaseVM):
log.debug("Control VM '{}' result: {}".format(subcommand, result))
return result
def _get_vmnet_interfaces(self):
vmnet_intefaces = []
for interface in interfaces():
if sys.platform.startswith("win"):
if "netcard" in interface:
windows_name = interface["netcard"]
else:
windows_name = interface["name"]
match = re.search("(VMnet[0-9]+)", windows_name)
if match:
vmnet = match.group(1)
if vmnet not in ("VMnet1", "VMnet8"):
vmnet_intefaces.append(vmnet)
elif interface["name"].startswith("vmnet"):
vmnet = interface["name"]
if vmnet not in ("vmnet1", "vmnet8"):
vmnet_intefaces.append(interface["name"])
return vmnet_intefaces
def _set_network_options(self):
try:
@ -98,24 +119,184 @@ class VMwareVM(BaseVM):
except OSError as e:
raise VMwareError('Could not read VMware VMX file "{}": {}'.format(self._vmx_path, e))
vmnet_interfaces = interfaces()
print(vmnet_interfaces)
vmnet_interfaces = self._get_vmnet_interfaces()
for adapter_number in range(0, self._adapters):
nio = self._ethernet_adapters[adapter_number].get_nio(0)
if nio:
if "ethernet{}.present".format(adapter_number) in self._vmx_pairs:
# check for the connection type
connection_type = "ethernet{}.connectionType".format(adapter_number)
if connection_type in self._vmx_pairs:
if self._vmx_pairs[connection_type] not in ("hostonly", "custom"):
raise VMwareError("Attachment ({}) already configured on adapter {}. "
"Please set it to 'hostonly' or 'custom' to allow GNS3 to use it.".format(self._vmx_pairs[connection_type],
adapter_number))
# check for the vmnet interface
vnet = "ethernet{}.vnet".format(adapter_number)
if vnet in self._vmx_pairs:
vmnet = os.path.basename(self._vmx_pairs[vnet])
if vmnet in vmnet_interfaces:
vmnet_interfaces.remove(vmnet)
else:
raise VMwareError("Network adapter {} is not associated with a VMnet interface".format(adapter_number))
# check for adapter type
# adapter_type = "ethernet{}.virtualDev".format(adapter_number)
# if adapter_type in self._vmx_pairs and self._vmx_pairs[adapter_type] != self._adapter_type:
# raise VMwareError("Network adapter {} is not of type {}".format(self._adapter_type))
# else:
# self._vmx_pairs[adapter_type] = self._adapter_type
else:
new_ethernet_adapter = {"ethernet{}.present".format(adapter_number): "TRUE",
"ethernet{}.connectionType".format(adapter_number): "custom",
"ethernet{}.vnet".format(adapter_number): "vmnet1",
"ethernet{}.addressType".format(adapter_number): "generated",
"ethernet{}.generatedAddressOffset".format(adapter_number): "0"}
self._vmx_pairs.update(new_ethernet_adapter)
#raise VMwareError("Network adapter {} does not exist".format(adapter_number))
self.manager.write_vmx_file(self._vmx_path, self._vmx_pairs)
self._update_ubridge_config()
def _update_ubridge_config(self):
"""
Updates the ubrige.ini file.
"""
ubridge_ini = os.path.join(self.working_dir, "ubridge.ini")
config = configparser.ConfigParser()
for adapter_number in range(0, self._adapters):
nio = self._ethernet_adapters[adapter_number].get_nio(0)
if nio and isinstance(nio, NIOUDP):
connection_type = "ethernet{}.connectionType".format(adapter_number)
if connection_type in self._vmx_pairs and self._vmx_pairs[connection_type] not in ("hostonly", "custom"):
raise VMwareError("Attachment ({}) already configured on adapter {}. "
"Please set it to 'hostonly' or 'custom to allow GNS3 to use it.".format(self._vmx_pairs[connection_type],
adapter_number))
if nio:
bridge_name = "bridge{}".format(adapter_number)
vnet = "ethernet{}.vnet".format(adapter_number)
if vnet in self._vmx_pairs:
pass
#if "ethernet{}.present".format(adapter_number) in self._vmx_pairs:
# print("ETHERNET {} FOUND".format(adapter_number))
#ethernet0.vnet
if not vnet in self._vmx_pairs:
continue
vmnet_interface = os.path.basename(self._vmx_pairs[vnet])
if sys.platform.startswith("linux"):
config[bridge_name] = {"source_linux_raw": vmnet_interface}
elif sys.platform.startswith("win"):
windows_interfaces = interfaces()
npf = None
for interface in windows_interfaces:
if "netcard" in interface and vmnet_interface in interface["netcard"]:
npf = interface["id"]
elif vmnet_interface in interface["name"]:
npf = interface["id"]
if npf:
config[bridge_name] = {"source_ethernet": npf}
else:
raise VMwareError("Could not find NPF id for VMnet interface {}".format(vmnet_interface))
else:
config[bridge_name] = {"source_ethernet": vmnet_interface}
if isinstance(nio, NIOUDP):
udp_tunnel_info = {"destination_udp": "{lport}:{rhost}:{rport}".format(lport=nio.lport,
rhost=nio.rhost,
rport=nio.rport)}
config[bridge_name].update(udp_tunnel_info)
if nio.capturing:
capture_info = {"pcap_file": "{pcap_file}".format(pcap_file=nio.pcap_output_file)}
config[bridge_name].update(capture_info)
try:
with open(ubridge_ini, "w", encoding="utf-8") as config_file:
config.write(config_file)
log.info('VMware VM "{name}" [id={id}]: ubridge.ini updated'.format(name=self._name,
id=self._id))
except OSError as e:
raise VMwareError("Could not create {}: {}".format(ubridge_ini, e))
@property
def ubridge_path(self):
"""
Returns the uBridge executable path.
:returns: path to uBridge
"""
path = self._manager.config.get_section_config("VMware").get("ubridge_path", "ubridge")
if path == "ubridge":
path = shutil.which("ubridge")
return path
@asyncio.coroutine
def _start_ubridge(self):
"""
Starts uBridge (handles connections to and from this VMware VM).
"""
try:
#self._update_ubridge_config()
command = [self.ubridge_path]
log.info("starting ubridge: {}".format(command))
self._ubridge_stdout_file = os.path.join(self.working_dir, "ubridge.log")
log.info("logging to {}".format(self._ubridge_stdout_file))
with open(self._ubridge_stdout_file, "w", encoding="utf-8") as fd:
self._ubridge_process = yield from asyncio.create_subprocess_exec(*command,
stdout=fd,
stderr=subprocess.STDOUT,
cwd=self.working_dir)
monitor_process(self._ubridge_process, self._termination_callback)
log.info("ubridge started PID={}".format(self._ubridge_process.pid))
except (OSError, subprocess.SubprocessError) as e:
ubridge_stdout = self.read_ubridge_stdout()
log.error("Could not start ubridge: {}\n{}".format(e, ubridge_stdout))
raise VMwareError("Could not start ubridge: {}\n{}".format(e, ubridge_stdout))
def _termination_callback(self, returncode):
"""
Called when the process has stopped.
:param returncode: Process returncode
"""
log.info("uBridge process has stopped, return code: %d", returncode)
def is_ubridge_running(self):
"""
Checks if the ubridge process is running
:returns: True or False
"""
if self._ubridge_process and self._ubridge_process.returncode is None:
return True
return False
def read_ubridge_stdout(self):
"""
Reads the standard output of the uBridge process.
Only use when the process has been stopped or has crashed.
"""
output = ""
if self._ubridge_stdout_file:
try:
with open(self._ubridge_stdout_file, "rb") as file:
output = file.read().decode("utf-8", errors="replace")
except OSError as e:
log.warn("could not read {}: {}".format(self._ubridge_stdout_file, e))
return output
def _terminate_process_ubridge(self):
"""
Terminate the ubridge process if running.
"""
if self._ubridge_process:
log.info('Stopping uBridge process for VMware VM "{}" PID={}'.format(self.name, self._ubridge_process.pid))
try:
self._ubridge_process.terminate()
# Sometime the process can already be dead when we garbage collect
except ProcessLookupError:
pass
@asyncio.coroutine
def start(self):
@ -123,7 +304,13 @@ class VMwareVM(BaseVM):
Starts this VMware VM.
"""
ubridge_path = self.ubridge_path
if not ubridge_path or not os.path.isfile(ubridge_path):
raise VMwareError("ubridge is necessary to start a VMware VM")
self._set_network_options()
yield from self._start_ubridge()
if self._headless:
yield from self._control_vm("start", "nogui")
else:
@ -136,6 +323,16 @@ class VMwareVM(BaseVM):
Stops this VMware VM.
"""
if self.is_ubridge_running():
self._terminate_process_ubridge()
try:
yield from wait_for_process_termination(self._ubridge_process, timeout=3)
except asyncio.TimeoutError:
if self._ubridge_process.returncode is None:
log.warn("uBridge process {} is still running... killing it".format(self._ubridge_process.pid))
self._ubridge_process.kill()
self._ubridge_process = None
yield from self._control_vm("stop")
log.info("VMware VM '{name}' [{id}] stopped".format(name=self.name, id=self.id))
@ -185,11 +382,11 @@ class VMwareVM(BaseVM):
self._manager.port_manager.release_tcp_port(self._console, self._project)
self._console = None
#for adapter in self._ethernet_adapters.values():
# if adapter is not None:
# for nio in adapter.ports.values():
# if nio and isinstance(nio, NIOUDP):
# self.manager.port_manager.release_udp_port(nio.lport, self._project)
for adapter in self._ethernet_adapters.values():
if adapter is not None:
for nio in adapter.ports.values():
if nio and isinstance(nio, NIOUDP):
self.manager.port_manager.release_udp_port(nio.lport, self._project)
try:
yield from self.stop()

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