mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-18 06:18:08 +00:00
687 lines
22 KiB
Python
687 lines
22 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# Copyright (C) 2014 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/>.
|
|
|
|
"""
|
|
QEMU server module.
|
|
"""
|
|
|
|
import sys
|
|
import os
|
|
import socket
|
|
import shutil
|
|
import subprocess
|
|
import re
|
|
|
|
from gns3server.modules import IModule
|
|
from gns3server.config import Config
|
|
from .qemu_vm import QemuVM
|
|
from .qemu_error import QemuError
|
|
from .nios.nio_udp import NIO_UDP
|
|
from ..attic import find_unused_port
|
|
|
|
from .schemas import QEMU_CREATE_SCHEMA
|
|
from .schemas import QEMU_DELETE_SCHEMA
|
|
from .schemas import QEMU_UPDATE_SCHEMA
|
|
from .schemas import QEMU_START_SCHEMA
|
|
from .schemas import QEMU_STOP_SCHEMA
|
|
from .schemas import QEMU_SUSPEND_SCHEMA
|
|
from .schemas import QEMU_RELOAD_SCHEMA
|
|
from .schemas import QEMU_ALLOCATE_UDP_PORT_SCHEMA
|
|
from .schemas import QEMU_ADD_NIO_SCHEMA
|
|
from .schemas import QEMU_DELETE_NIO_SCHEMA
|
|
|
|
import logging
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class Qemu(IModule):
|
|
"""
|
|
QEMU module.
|
|
|
|
:param name: module name
|
|
:param args: arguments for the module
|
|
:param kwargs: named arguments for the module
|
|
"""
|
|
|
|
def __init__(self, name, *args, **kwargs):
|
|
|
|
# a new process start when calling IModule
|
|
IModule.__init__(self, name, *args, **kwargs)
|
|
self._qemu_instances = {}
|
|
|
|
config = Config.instance()
|
|
qemu_config = config.get_section_config(name.upper())
|
|
self._console_start_port_range = qemu_config.get("console_start_port_range", 5001)
|
|
self._console_end_port_range = qemu_config.get("console_end_port_range", 5500)
|
|
self._monitor_start_port_range = qemu_config.get("monitor_start_port_range", 5501)
|
|
self._monitor_end_port_range = qemu_config.get("monitor_end_port_range", 6000)
|
|
self._allocated_udp_ports = []
|
|
self._udp_start_port_range = qemu_config.get("udp_start_port_range", 40001)
|
|
self._udp_end_port_range = qemu_config.get("udp_end_port_range", 45500)
|
|
self._host = qemu_config.get("host", kwargs["host"])
|
|
self._console_host = qemu_config.get("console_host", kwargs["console_host"])
|
|
self._monitor_host = qemu_config.get("monitor_host", "127.0.0.1")
|
|
self._projects_dir = kwargs["projects_dir"]
|
|
self._tempdir = kwargs["temp_dir"]
|
|
self._working_dir = self._projects_dir
|
|
|
|
def stop(self, signum=None):
|
|
"""
|
|
Properly stops the module.
|
|
|
|
:param signum: signal number (if called by the signal handler)
|
|
"""
|
|
|
|
# delete all QEMU instances
|
|
for qemu_id in self._qemu_instances:
|
|
qemu_instance = self._qemu_instances[qemu_id]
|
|
qemu_instance.delete()
|
|
|
|
IModule.stop(self, signum) # this will stop the I/O loop
|
|
|
|
def get_qemu_instance(self, qemu_id):
|
|
"""
|
|
Returns a QEMU VM instance.
|
|
|
|
:param qemu_id: QEMU VM identifier
|
|
|
|
:returns: QemuVM instance
|
|
"""
|
|
|
|
if qemu_id not in self._qemu_instances:
|
|
log.debug("QEMU VM ID {} doesn't exist".format(qemu_id), exc_info=1)
|
|
self.send_custom_error("QEMU VM ID {} doesn't exist".format(qemu_id))
|
|
return None
|
|
return self._qemu_instances[qemu_id]
|
|
|
|
@IModule.route("qemu.reset")
|
|
def reset(self, request):
|
|
"""
|
|
Resets the module.
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# delete all QEMU instances
|
|
for qemu_id in self._qemu_instances:
|
|
qemu_instance = self._qemu_instances[qemu_id]
|
|
qemu_instance.delete()
|
|
|
|
# resets the instance IDs
|
|
QemuVM.reset()
|
|
|
|
self._qemu_instances.clear()
|
|
self._allocated_udp_ports.clear()
|
|
|
|
self._working_dir = self._projects_dir
|
|
log.info("QEMU module has been reset")
|
|
|
|
@IModule.route("qemu.settings")
|
|
def settings(self, request):
|
|
"""
|
|
Set or update settings.
|
|
|
|
Optional request parameters:
|
|
- working_dir (path to a working directory)
|
|
- project_name
|
|
- console_start_port_range
|
|
- console_end_port_range
|
|
- monitor_start_port_range
|
|
- monitor_end_port_range
|
|
- udp_start_port_range
|
|
- udp_end_port_range
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
if request is None:
|
|
self.send_param_error()
|
|
return
|
|
|
|
if "working_dir" in request:
|
|
new_working_dir = request["working_dir"]
|
|
log.info("this server is local with working directory path to {}".format(new_working_dir))
|
|
else:
|
|
new_working_dir = os.path.join(self._projects_dir, request["project_name"])
|
|
log.info("this server is remote with working directory path to {}".format(new_working_dir))
|
|
if self._projects_dir != self._working_dir != new_working_dir:
|
|
if not os.path.isdir(new_working_dir):
|
|
try:
|
|
shutil.move(self._working_dir, new_working_dir)
|
|
except OSError as e:
|
|
log.error("could not move working directory from {} to {}: {}".format(self._working_dir,
|
|
new_working_dir,
|
|
e))
|
|
return
|
|
|
|
# update the working directory if it has changed
|
|
if self._working_dir != new_working_dir:
|
|
self._working_dir = new_working_dir
|
|
for qemu_id in self._qemu_instances:
|
|
qemu_instance = self._qemu_instances[qemu_id]
|
|
qemu_instance.working_dir = os.path.join(self._working_dir, "qemu", "vm-{}".format(qemu_instance.id))
|
|
|
|
if "console_start_port_range" in request and "console_end_port_range" in request:
|
|
self._console_start_port_range = request["console_start_port_range"]
|
|
self._console_end_port_range = request["console_end_port_range"]
|
|
|
|
if "monitor_start_port_range" in request and "monitor_end_port_range" in request:
|
|
self._monitor_start_port_range = request["monitor_start_port_range"]
|
|
self._monitor_end_port_range = request["monitor_end_port_range"]
|
|
|
|
if "udp_start_port_range" in request and "udp_end_port_range" in request:
|
|
self._udp_start_port_range = request["udp_start_port_range"]
|
|
self._udp_end_port_range = request["udp_end_port_range"]
|
|
|
|
log.debug("received request {}".format(request))
|
|
|
|
@IModule.route("qemu.create")
|
|
def qemu_create(self, request):
|
|
"""
|
|
Creates a new QEMU VM instance.
|
|
|
|
Mandatory request parameters:
|
|
- name (QEMU VM name)
|
|
- qemu_path (path to the Qemu binary)
|
|
|
|
Optional request parameters:
|
|
- console (QEMU VM console port)
|
|
- monitor (QEMU VM monitor port)
|
|
|
|
Response parameters:
|
|
- id (QEMU VM instance identifier)
|
|
- name (QEMU VM name)
|
|
- default settings
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_CREATE_SCHEMA):
|
|
return
|
|
|
|
name = request["name"]
|
|
qemu_path = request["qemu_path"]
|
|
console = request.get("console")
|
|
monitor = request.get("monitor")
|
|
qemu_id = request.get("qemu_id")
|
|
|
|
try:
|
|
qemu_instance = QemuVM(name,
|
|
qemu_path,
|
|
self._working_dir,
|
|
self._host,
|
|
qemu_id,
|
|
console,
|
|
self._console_host,
|
|
self._console_start_port_range,
|
|
self._console_end_port_range,
|
|
monitor,
|
|
self._monitor_host,
|
|
self._monitor_start_port_range,
|
|
self._monitor_end_port_range)
|
|
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
response = {"name": qemu_instance.name,
|
|
"id": qemu_instance.id}
|
|
|
|
defaults = qemu_instance.defaults()
|
|
response.update(defaults)
|
|
self._qemu_instances[qemu_instance.id] = qemu_instance
|
|
self.send_response(response)
|
|
|
|
@IModule.route("qemu.delete")
|
|
def qemu_delete(self, request):
|
|
"""
|
|
Deletes a QEMU VM instance.
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM instance identifier)
|
|
|
|
Response parameter:
|
|
- True on success
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_DELETE_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
try:
|
|
qemu_instance.clean_delete()
|
|
del self._qemu_instances[request["id"]]
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
self.send_response(True)
|
|
|
|
@IModule.route("qemu.update")
|
|
def qemu_update(self, request):
|
|
"""
|
|
Updates a QEMU VM instance
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM instance identifier)
|
|
|
|
Optional request parameters:
|
|
- any setting to update
|
|
|
|
Response parameters:
|
|
- updated settings
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_UPDATE_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
# update the QEMU VM settings
|
|
response = {}
|
|
for name, value in request.items():
|
|
if hasattr(qemu_instance, name) and getattr(qemu_instance, name) != value:
|
|
try:
|
|
setattr(qemu_instance, name, value)
|
|
response[name] = value
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
self.send_response(response)
|
|
|
|
@IModule.route("qemu.start")
|
|
def qemu_start(self, request):
|
|
"""
|
|
Starts a QEMU VM instance.
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM instance identifier)
|
|
|
|
Response parameters:
|
|
- True on success
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_START_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
try:
|
|
qemu_instance.start()
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
self.send_response(True)
|
|
|
|
@IModule.route("qemu.stop")
|
|
def qemu_stop(self, request):
|
|
"""
|
|
Stops a QEMU VM instance.
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM instance identifier)
|
|
|
|
Response parameters:
|
|
- True on success
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_STOP_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
try:
|
|
qemu_instance.stop()
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
self.send_response(True)
|
|
|
|
@IModule.route("qemu.reload")
|
|
def qemu_reload(self, request):
|
|
"""
|
|
Reloads a QEMU VM instance.
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM identifier)
|
|
|
|
Response parameters:
|
|
- True on success
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_RELOAD_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
try:
|
|
qemu_instance.reload()
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
self.send_response(True)
|
|
|
|
@IModule.route("qemu.stop")
|
|
def qemu_stop(self, request):
|
|
"""
|
|
Stops a QEMU VM instance.
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM instance identifier)
|
|
|
|
Response parameters:
|
|
- True on success
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_STOP_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
try:
|
|
qemu_instance.stop()
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
self.send_response(True)
|
|
|
|
@IModule.route("qemu.suspend")
|
|
def qemu_suspend(self, request):
|
|
"""
|
|
Suspends a QEMU VM instance.
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM instance identifier)
|
|
|
|
Response parameters:
|
|
- True on success
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_SUSPEND_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
try:
|
|
qemu_instance.suspend()
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
self.send_response(True)
|
|
|
|
@IModule.route("qemu.allocate_udp_port")
|
|
def allocate_udp_port(self, request):
|
|
"""
|
|
Allocates a UDP port in order to create an UDP NIO.
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM identifier)
|
|
- port_id (unique port identifier)
|
|
|
|
Response parameters:
|
|
- port_id (unique port identifier)
|
|
- lport (allocated local port)
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_ALLOCATE_UDP_PORT_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
try:
|
|
port = find_unused_port(self._udp_start_port_range,
|
|
self._udp_end_port_range,
|
|
host=self._host,
|
|
socket_type="UDP",
|
|
ignore_ports=self._allocated_udp_ports)
|
|
except Exception as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
self._allocated_udp_ports.append(port)
|
|
log.info("{} [id={}] has allocated UDP port {} with host {}".format(qemu_instance.name,
|
|
qemu_instance.id,
|
|
port,
|
|
self._host))
|
|
|
|
response = {"lport": port,
|
|
"port_id": request["port_id"]}
|
|
self.send_response(response)
|
|
|
|
@IModule.route("qemu.add_nio")
|
|
def add_nio(self, request):
|
|
"""
|
|
Adds an NIO (Network Input/Output) for a QEMU VM instance.
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM instance identifier)
|
|
- port (port number)
|
|
- port_id (unique port identifier)
|
|
- nio (one of the following)
|
|
- type "nio_udp"
|
|
- lport (local port)
|
|
- rhost (remote host)
|
|
- rport (remote port)
|
|
|
|
Response parameters:
|
|
- port_id (unique port identifier)
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_ADD_NIO_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
port = request["port"]
|
|
try:
|
|
nio = None
|
|
if request["nio"]["type"] == "nio_udp":
|
|
lport = request["nio"]["lport"]
|
|
rhost = request["nio"]["rhost"]
|
|
rport = request["nio"]["rport"]
|
|
try:
|
|
#TODO: handle IPv6
|
|
with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
|
|
sock.connect((rhost, rport))
|
|
except OSError as e:
|
|
raise QemuError("Could not create an UDP connection to {}:{}: {}".format(rhost, rport, e))
|
|
nio = NIO_UDP(lport, rhost, rport)
|
|
if not nio:
|
|
raise QemuError("Requested NIO does not exist or is not supported: {}".format(request["nio"]["type"]))
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
try:
|
|
qemu_instance.port_add_nio_binding(port, nio)
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
self.send_response({"port_id": request["port_id"]})
|
|
|
|
@IModule.route("qemu.delete_nio")
|
|
def delete_nio(self, request):
|
|
"""
|
|
Deletes an NIO (Network Input/Output).
|
|
|
|
Mandatory request parameters:
|
|
- id (QEMU VM instance identifier)
|
|
- port (port identifier)
|
|
|
|
Response parameters:
|
|
- True on success
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
# validate the request
|
|
if not self.validate_request(request, QEMU_DELETE_NIO_SCHEMA):
|
|
return
|
|
|
|
# get the instance
|
|
qemu_instance = self.get_qemu_instance(request["id"])
|
|
if not qemu_instance:
|
|
return
|
|
|
|
port = request["port"]
|
|
try:
|
|
nio = qemu_instance.port_remove_nio_binding(port)
|
|
if isinstance(nio, NIO_UDP) and nio.lport in self._allocated_udp_ports:
|
|
self._allocated_udp_ports.remove(nio.lport)
|
|
except QemuError as e:
|
|
self.send_custom_error(str(e))
|
|
return
|
|
|
|
self.send_response(True)
|
|
|
|
def _get_qemu_version(self, qemu_path):
|
|
"""
|
|
Gets the Qemu version.
|
|
|
|
:param qemu_path: path to Qemu
|
|
"""
|
|
|
|
if sys.platform.startswith("win"):
|
|
return ""
|
|
try:
|
|
output = subprocess.check_output([qemu_path, "-version"])
|
|
match = re.search("version\s+([0-9a-z\-\.]+)", output.decode("utf-8"))
|
|
if match:
|
|
version = match.group(1)
|
|
return version
|
|
else:
|
|
raise QemuError("Could not determine the Qemu version for {}".format(qemu_path))
|
|
except subprocess.SubprocessError as e:
|
|
raise QemuError("Error while looking for the Qemu version: {}".format(e))
|
|
|
|
@IModule.route("qemu.qemu_list")
|
|
def qemu_list(self, request):
|
|
"""
|
|
Gets QEMU binaries list.
|
|
|
|
Response parameters:
|
|
- List of Qemu binaries
|
|
"""
|
|
|
|
qemus = []
|
|
paths = [os.getcwd()] + os.environ["PATH"].split(os.pathsep)
|
|
# look for Qemu binaries in the current working directory and $PATH
|
|
if sys.platform.startswith("win"):
|
|
# add specific Windows paths
|
|
if hasattr(sys, "frozen"):
|
|
# add any qemu dir in the same location as gns3server.exe to the list of paths
|
|
exec_dir = os.path.dirname(os.path.abspath(sys.executable))
|
|
for f in os.listdir(exec_dir):
|
|
if f.lower().startswith("qemu"):
|
|
paths.append(os.path.join(exec_dir, f))
|
|
|
|
if "PROGRAMFILES(X86)" in os.environ and os.path.exists(os.environ["PROGRAMFILES(X86)"]):
|
|
paths.append(os.path.join(os.environ["PROGRAMFILES(X86)"], "qemu"))
|
|
if "PROGRAMFILES" in os.environ and os.path.exists(os.environ["PROGRAMFILES"]):
|
|
paths.append(os.path.join(os.environ["PROGRAMFILES"], "qemu"))
|
|
elif sys.platform.startswith("darwin"):
|
|
# add specific locations on Mac OS X regardless of what's in $PATH
|
|
paths.extend(["/usr/local/bin", "/opt/local/bin"])
|
|
if hasattr(sys, "frozen"):
|
|
paths.append(os.path.abspath(os.path.join(os.getcwd(), "../../../qemu/bin/")))
|
|
for path in paths:
|
|
try:
|
|
for f in os.listdir(path):
|
|
if (f.startswith("qemu-system") or f == "qemu" or f == "qemu.exe") and \
|
|
os.access(os.path.join(path, f), os.X_OK) and \
|
|
os.path.isfile(os.path.join(path, f)):
|
|
qemu_path = os.path.join(path, f)
|
|
version = self._get_qemu_version(qemu_path)
|
|
qemus.append({"path": qemu_path, "version": version})
|
|
except OSError:
|
|
continue
|
|
|
|
response = {"qemus": qemus}
|
|
self.send_response(response)
|
|
|
|
@IModule.route("qemu.echo")
|
|
def echo(self, request):
|
|
"""
|
|
Echo end point for testing purposes.
|
|
|
|
:param request: JSON request
|
|
"""
|
|
|
|
if request is None:
|
|
self.send_param_error()
|
|
else:
|
|
log.debug("received request {}".format(request))
|
|
self.send_response(request)
|