mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-24 17:28:08 +00:00
1631 lines
65 KiB
Python
1631 lines
65 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2014 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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QEMU VM management (creates command line, processes, files etc.) in
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order to run a QEMU VM.
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"""
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import sys
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import os
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import re
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import math
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import shutil
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import shlex
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import asyncio
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import socket
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import gns3server
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import subprocess
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from gns3server.utils import parse_version
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from .qemu_error import QemuError
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from ..adapters.ethernet_adapter import EthernetAdapter
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from ..nios.nio_udp import NIOUDP
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from ..nios.nio_tap import NIOTAP
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from ..base_node import BaseNode
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from ...schemas.qemu import QEMU_OBJECT_SCHEMA, QEMU_PLATFORMS
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from ...utils.asyncio import monitor_process
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from ...utils.images import md5sum
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from .qcow2 import Qcow2, Qcow2Error
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from ...utils import macaddress_to_int, int_to_macaddress
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import logging
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log = logging.getLogger(__name__)
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class QemuVM(BaseNode):
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module_name = 'qemu'
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"""
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QEMU VM implementation.
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:param name: Qemu VM name
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:param node_id: Node identifier
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:param project: Project instance
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:param manager: Manager instance
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:param console: TCP console port
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:param qemu_path: path to the QEMU binary
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:param platform: Platform to emulate
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:param console: TCP console port
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"""
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def __init__(self, name, node_id, project, manager, linked_clone=True, qemu_path=None, console=None, console_type="telnet", platform=None):
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super().__init__(name, node_id, project, manager, console=console, console_type=console_type, wrap_console=True)
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server_config = manager.config.get_section_config("Server")
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self._host = server_config.get("host", "127.0.0.1")
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self._monitor_host = server_config.get("monitor_host", "127.0.0.1")
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self._process = None
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self._cpulimit_process = None
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self._monitor = None
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self._stdout_file = ""
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self._execute_lock = asyncio.Lock()
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self._local_udp_tunnels = {}
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# QEMU VM settings
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if qemu_path:
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try:
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self.qemu_path = qemu_path
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except QemuError as e:
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# If the binary is not found for topologies 1.4 and later
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# search via the platform otherwise use the binary name
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if platform:
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self.platform = platform
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else:
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self.qemu_path = os.path.basename(qemu_path)
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else:
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self.platform = platform
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self._hda_disk_image = ""
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self._hdb_disk_image = ""
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self._hdc_disk_image = ""
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self._hdd_disk_image = ""
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self._hda_disk_interface = "ide"
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self._hdb_disk_interface = "ide"
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self._hdc_disk_interface = "ide"
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self._hdd_disk_interface = "ide"
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self._cdrom_image = ""
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self._bios_image = ""
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self._boot_priority = "c"
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self._mac_address = ""
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self._options = ""
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self._ram = 256
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self._cpus = 1
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self._ethernet_adapters = []
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self._adapter_type = "e1000"
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self._initrd = ""
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self._kernel_image = ""
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self._kernel_command_line = ""
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self._legacy_networking = False
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self._acpi_shutdown = False
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self._cpu_throttling = 0 # means no CPU throttling
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self._process_priority = "low"
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self.mac_address = "" # this will generate a MAC address
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self.adapters = 1 # creates 1 adapter by default
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log.info('QEMU VM "{name}" [{id}] has been created'.format(name=self._name, id=self._id))
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@property
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def monitor(self):
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"""
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Returns the TCP monitor port.
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:returns: monitor port (integer)
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"""
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return self._monitor
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@property
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def qemu_path(self):
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"""
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Returns the QEMU binary path for this QEMU VM.
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:returns: QEMU path
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"""
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return self._qemu_path
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@qemu_path.setter
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def qemu_path(self, qemu_path):
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"""
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Sets the QEMU binary path this QEMU VM.
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:param qemu_path: QEMU path
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"""
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if qemu_path and os.pathsep not in qemu_path:
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if sys.platform.startswith("win") and ".exe" not in qemu_path.lower():
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qemu_path += "w.exe"
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new_qemu_path = shutil.which(qemu_path, path=os.pathsep.join(self._manager.paths_list()))
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if new_qemu_path is None:
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raise QemuError("QEMU binary path {} is not found in the path".format(qemu_path))
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qemu_path = new_qemu_path
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self._check_qemu_path(qemu_path)
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self._qemu_path = qemu_path
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self._platform = os.path.basename(qemu_path)
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if self._platform == "qemu-kvm":
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self._platform = "x86_64"
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else:
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qemu_bin = os.path.basename(qemu_path)
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qemu_bin = re.sub(r'(w)?\.(exe|EXE)$', '', qemu_bin)
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# Old version of GNS3 provide a binary named qemu.exe
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if qemu_bin == "qemu":
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self._platform = "i386"
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else:
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self._platform = re.sub(r'^qemu-system-(.*)$', r'\1', qemu_bin, re.IGNORECASE)
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if self._platform.split(".")[0] not in QEMU_PLATFORMS:
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raise QemuError("Platform {} is unknown".format(self._platform))
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log.info('QEMU VM "{name}" [{id}] has set the QEMU path to {qemu_path}'.format(name=self._name,
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id=self._id,
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qemu_path=qemu_path))
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def _check_qemu_path(self, qemu_path):
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if qemu_path is None:
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raise QemuError("QEMU binary path is not set")
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if not os.path.exists(qemu_path):
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raise QemuError("QEMU binary '{}' is not accessible".format(qemu_path))
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if not os.access(qemu_path, os.X_OK):
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raise QemuError("QEMU binary '{}' is not executable".format(qemu_path))
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@property
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def platform(self):
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"""
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Return the current platform
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"""
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return self._platform
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@platform.setter
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def platform(self, platform):
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self._platform = platform
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if sys.platform.startswith("win"):
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self.qemu_path = "qemu-system-{}w.exe".format(platform)
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else:
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self.qemu_path = "qemu-system-{}".format(platform)
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def _disk_setter(self, variable, value):
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"""
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Use by disk image setter for checking and apply modifications
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:param variable: Variable name in the class
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:param value: New disk value
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"""
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value = self.manager.get_abs_image_path(value)
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if not self.linked_clone:
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for node in self.manager.nodes:
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if node != self and getattr(node, variable) == value:
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raise QemuError("Sorry a node without the linked base setting enabled can only be used once on your server. {} is already used by {}".format(value, node.name))
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setattr(self, "_" + variable, value)
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log.info('QEMU VM "{name}" [{id}] has set the QEMU {variable} path to {disk_image}'.format(name=self._name,
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variable=variable,
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id=self._id,
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disk_image=value))
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@property
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def hda_disk_image(self):
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"""
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Returns the hda disk image path for this QEMU VM.
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:returns: QEMU hda disk image path
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"""
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return self._hda_disk_image
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@hda_disk_image.setter
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def hda_disk_image(self, hda_disk_image):
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"""
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Sets the hda disk image for this QEMU VM.
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:param hda_disk_image: QEMU hda disk image path
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"""
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self._disk_setter("hda_disk_image", hda_disk_image)
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@property
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def hdb_disk_image(self):
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"""
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Returns the hdb disk image path for this QEMU VM.
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:returns: QEMU hdb disk image path
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"""
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return self._hdb_disk_image
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@hdb_disk_image.setter
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def hdb_disk_image(self, hdb_disk_image):
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"""
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Sets the hdb disk image for this QEMU VM.
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:param hdb_disk_image: QEMU hdb disk image path
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"""
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self._disk_setter("hdb_disk_image", hdb_disk_image)
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@property
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def hdc_disk_image(self):
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"""
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Returns the hdc disk image path for this QEMU VM.
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:returns: QEMU hdc disk image path
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"""
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return self._hdc_disk_image
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@hdc_disk_image.setter
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def hdc_disk_image(self, hdc_disk_image):
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"""
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Sets the hdc disk image for this QEMU VM.
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:param hdc_disk_image: QEMU hdc disk image path
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"""
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self._disk_setter("hdc_disk_image", hdc_disk_image)
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@property
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def hdd_disk_image(self):
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"""
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Returns the hdd disk image path for this QEMU VM.
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:returns: QEMU hdd disk image path
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"""
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return self._hdd_disk_image
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@hdd_disk_image.setter
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def hdd_disk_image(self, hdd_disk_image):
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"""
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Sets the hdd disk image for this QEMU VM.
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:param hdd_disk_image: QEMU hdd disk image path
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"""
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self._disk_setter("hdd_disk_image", hdd_disk_image)
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@property
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def hda_disk_interface(self):
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"""
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Returns the hda disk interface this QEMU VM.
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:returns: QEMU hda disk interface
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"""
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return self._hda_disk_interface
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@hda_disk_interface.setter
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def hda_disk_interface(self, hda_disk_interface):
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"""
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Sets the hda disk interface for this QEMU VM.
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:param hda_disk_interface: QEMU hda disk interface
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"""
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self._hda_disk_interface = hda_disk_interface
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log.info('QEMU VM "{name}" [{id}] has set the QEMU hda disk interface to {interface}'.format(name=self._name,
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id=self._id,
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interface=self._hda_disk_interface))
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@property
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def hdb_disk_interface(self):
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"""
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Returns the hdb disk interface this QEMU VM.
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:returns: QEMU hdb disk interface
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"""
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return self._hdb_disk_interface
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@hdb_disk_interface.setter
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def hdb_disk_interface(self, hdb_disk_interface):
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"""
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Sets the hda disk interface for this QEMU VM.
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:param hdb_disk_interface: QEMU hdb disk interface
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"""
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self._hdb_disk_interface = hdb_disk_interface
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log.info('QEMU VM "{name}" [{id}] has set the QEMU hdb disk interface to {interface}'.format(name=self._name,
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id=self._id,
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interface=self._hdb_disk_interface))
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@property
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def hdc_disk_interface(self):
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"""
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Returns the hdc disk interface this QEMU VM.
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:returns: QEMU hdc disk interface
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"""
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return self._hdc_disk_interface
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@hdc_disk_interface.setter
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def hdc_disk_interface(self, hdc_disk_interface):
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"""
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Sets the hdc disk interface for this QEMU VM.
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:param hdc_disk_interface: QEMU hdc disk interface
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"""
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self._hdc_disk_interface = hdc_disk_interface
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log.info('QEMU VM "{name}" [{id}] has set the QEMU hdc disk interface to {interface}'.format(name=self._name,
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id=self._id,
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interface=self._hdc_disk_interface))
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@property
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def hdd_disk_interface(self):
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"""
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Returns the hda disk interface this QEMU VM.
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:returns: QEMU hda disk interface
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"""
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return self._hdd_disk_interface
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@hdd_disk_interface.setter
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def hdd_disk_interface(self, hdd_disk_interface):
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"""
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Sets the hdd disk interface for this QEMU VM.
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:param hdd_disk_interface: QEMU hdd disk interface
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"""
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self._hdd_disk_interface = hdd_disk_interface
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log.info('QEMU VM "{name}" [{id}] has set the QEMU hdd disk interface to {interface}'.format(name=self._name,
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id=self._id,
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interface=self._hdd_disk_interface))
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@property
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def cdrom_image(self):
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"""
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Returns the cdrom image path for this QEMU VM.
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:returns: QEMU cdrom image path
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"""
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return self._cdrom_image
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@cdrom_image.setter
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def cdrom_image(self, cdrom_image):
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"""
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Sets the cdrom image for this QEMU VM.
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:param cdrom_image: QEMU cdrom image path
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"""
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self._cdrom_image = self.manager.get_abs_image_path(cdrom_image)
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log.info('QEMU VM "{name}" [{id}] has set the QEMU cdrom image path to {cdrom_image}'.format(name=self._name,
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id=self._id,
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cdrom_image=self._cdrom_image))
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@property
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def bios_image(self):
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"""
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Returns the bios image path for this QEMU VM.
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:returns: QEMU bios image path
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"""
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return self._bios_image
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@bios_image.setter
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def bios_image(self, bios_image):
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"""
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Sets the bios image for this QEMU VM.
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:param bios_image: QEMU bios image path
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"""
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self._bios_image = self.manager.get_abs_image_path(bios_image)
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log.info('QEMU VM "{name}" [{id}] has set the QEMU bios image path to {bios_image}'.format(name=self._name,
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id=self._id,
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bios_image=self._bios_image))
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@property
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def boot_priority(self):
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"""
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Returns the boot priority for this QEMU VM.
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:returns: QEMU boot priority
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"""
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return self._boot_priority
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@boot_priority.setter
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def boot_priority(self, boot_priority):
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"""
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Sets the boot priority for this QEMU VM.
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:param boot_priority: QEMU boot priority
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"""
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self._boot_priority = boot_priority
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log.info('QEMU VM "{name}" [{id}] has set the boot priority to {boot_priority}'.format(name=self._name,
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id=self._id,
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boot_priority=self._boot_priority))
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@property
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def adapters(self):
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"""
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Returns the number of Ethernet adapters for this QEMU VM.
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:returns: number of adapters
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"""
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return len(self._ethernet_adapters)
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@adapters.setter
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def adapters(self, adapters):
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"""
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Sets the number of Ethernet adapters for this QEMU VM.
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:param adapters: number of adapters
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"""
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self._ethernet_adapters.clear()
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for adapter_number in range(0, adapters):
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self._ethernet_adapters.append(EthernetAdapter())
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log.info('QEMU VM "{name}" [{id}]: number of Ethernet adapters changed to {adapters}'.format(name=self._name,
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id=self._id,
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adapters=adapters))
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@property
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def adapter_type(self):
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"""
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Returns the adapter type for this QEMU VM.
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:returns: adapter type (string)
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"""
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return self._adapter_type
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@adapter_type.setter
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def adapter_type(self, adapter_type):
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"""
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Sets the adapter type for this QEMU VM.
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:param adapter_type: adapter type (string)
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"""
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self._adapter_type = adapter_type
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log.info('QEMU VM "{name}" [{id}]: adapter type changed to {adapter_type}'.format(name=self._name,
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id=self._id,
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adapter_type=adapter_type))
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@property
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def mac_address(self):
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"""
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Returns the MAC address for this QEMU VM.
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:returns: adapter type (string)
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"""
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return self._mac_address
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@mac_address.setter
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def mac_address(self, mac_address):
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"""
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Sets the MAC address for this QEMU VM.
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:param mac_address: MAC address
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"""
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if not mac_address:
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# use the node UUID to generate a random MAC address
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self._mac_address = "00:%s:%s:%s:%s:00" % (self.project.id[-4:-2], self.project.id[-2:], self.id[-4:-2], self.id[-2:])
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else:
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self._mac_address = mac_address
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log.info('QEMU VM "{name}" [{id}]: MAC address changed to {mac_addr}'.format(name=self._name,
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id=self._id,
|
|
mac_addr=mac_address))
|
|
|
|
@property
|
|
def legacy_networking(self):
|
|
"""
|
|
Returns either QEMU legacy networking commands are used.
|
|
|
|
:returns: boolean
|
|
"""
|
|
|
|
return self._legacy_networking
|
|
|
|
@legacy_networking.setter
|
|
def legacy_networking(self, legacy_networking):
|
|
"""
|
|
Sets either QEMU legacy networking commands are used.
|
|
|
|
:param legacy_networking: boolean
|
|
"""
|
|
|
|
if legacy_networking:
|
|
log.info('QEMU VM "{name}" [{id}] has enabled legacy networking'.format(name=self._name, id=self._id))
|
|
else:
|
|
log.info('QEMU VM "{name}" [{id}] has disabled legacy networking'.format(name=self._name, id=self._id))
|
|
self._legacy_networking = legacy_networking
|
|
|
|
@property
|
|
def acpi_shutdown(self):
|
|
"""
|
|
Returns either this QEMU VM can be ACPI shutdown.
|
|
|
|
:returns: boolean
|
|
"""
|
|
|
|
return self._acpi_shutdown
|
|
|
|
@acpi_shutdown.setter
|
|
def acpi_shutdown(self, acpi_shutdown):
|
|
"""
|
|
Sets either this QEMU VM can be ACPI shutdown.
|
|
|
|
:param acpi_shutdown: boolean
|
|
"""
|
|
|
|
if acpi_shutdown:
|
|
log.info('QEMU VM "{name}" [{id}] has enabled ACPI shutdown'.format(name=self._name, id=self._id))
|
|
else:
|
|
log.info('QEMU VM "{name}" [{id}] has disabled ACPI shutdown'.format(name=self._name, id=self._id))
|
|
self._acpi_shutdown = acpi_shutdown
|
|
|
|
@property
|
|
def cpu_throttling(self):
|
|
"""
|
|
Returns the percentage of CPU allowed.
|
|
|
|
:returns: integer
|
|
"""
|
|
|
|
return self._cpu_throttling
|
|
|
|
@cpu_throttling.setter
|
|
def cpu_throttling(self, cpu_throttling):
|
|
"""
|
|
Sets the percentage of CPU allowed.
|
|
|
|
:param cpu_throttling: integer
|
|
"""
|
|
|
|
log.info('QEMU VM "{name}" [{id}] has set the percentage of CPU allowed to {cpu}'.format(name=self._name,
|
|
id=self._id,
|
|
cpu=cpu_throttling))
|
|
self._cpu_throttling = cpu_throttling
|
|
self._stop_cpulimit()
|
|
if cpu_throttling:
|
|
self._set_cpu_throttling()
|
|
|
|
@property
|
|
def process_priority(self):
|
|
"""
|
|
Returns the process priority.
|
|
|
|
:returns: string
|
|
"""
|
|
|
|
return self._process_priority
|
|
|
|
@process_priority.setter
|
|
def process_priority(self, process_priority):
|
|
"""
|
|
Sets the process priority.
|
|
|
|
:param process_priority: string
|
|
"""
|
|
|
|
log.info('QEMU VM "{name}" [{id}] has set the process priority to {priority}'.format(name=self._name,
|
|
id=self._id,
|
|
priority=process_priority))
|
|
self._process_priority = process_priority
|
|
|
|
@property
|
|
def ram(self):
|
|
"""
|
|
Returns the RAM amount for this QEMU VM.
|
|
|
|
:returns: RAM amount in MB
|
|
"""
|
|
|
|
return self._ram
|
|
|
|
@ram.setter
|
|
def ram(self, ram):
|
|
"""
|
|
Sets the amount of RAM for this QEMU VM.
|
|
|
|
:param ram: RAM amount in MB
|
|
"""
|
|
|
|
log.info('QEMU VM "{name}" [{id}] has set the RAM to {ram}'.format(name=self._name, id=self._id, ram=ram))
|
|
self._ram = ram
|
|
|
|
@property
|
|
def cpus(self):
|
|
"""
|
|
Returns the number of vCPUs this QEMU VM.
|
|
|
|
:returns: number of vCPUs.
|
|
"""
|
|
|
|
return self._cpus
|
|
|
|
@cpus.setter
|
|
def cpus(self, cpus):
|
|
"""
|
|
Sets the number of vCPUs this QEMU VM.
|
|
|
|
:param cpus: number of vCPUs.
|
|
"""
|
|
|
|
log.info('QEMU VM "{name}" [{id}] has set the number of vCPUs to {cpus}'.format(name=self._name, id=self._id, cpus=cpus))
|
|
self._cpus = cpus
|
|
|
|
@property
|
|
def options(self):
|
|
"""
|
|
Returns the options for this QEMU VM.
|
|
|
|
:returns: QEMU options
|
|
"""
|
|
|
|
return self._options
|
|
|
|
@options.setter
|
|
def options(self, options):
|
|
"""
|
|
Sets the options for this QEMU VM.
|
|
|
|
:param options: QEMU options
|
|
"""
|
|
|
|
log.info('QEMU VM "{name}" [{id}] has set the QEMU options to {options}'.format(name=self._name,
|
|
id=self._id,
|
|
options=options))
|
|
|
|
if not sys.platform.startswith("linux"):
|
|
if "-no-kvm" in options:
|
|
options = options.replace("-no-kvm", "")
|
|
if "-enable-kvm" in options:
|
|
options = options.replace("-enable-kvm", "")
|
|
elif "-icount" in options and ("-no-kvm" not in options):
|
|
# automatically add the -no-kvm option if -icount is detected
|
|
# to help with the migration of ASA VMs created before version 1.4
|
|
options = "-no-kvm " + options
|
|
self._options = options.strip()
|
|
|
|
@property
|
|
def initrd(self):
|
|
"""
|
|
Returns the initrd path for this QEMU VM.
|
|
|
|
:returns: QEMU initrd path
|
|
"""
|
|
|
|
return self._initrd
|
|
|
|
@initrd.setter
|
|
def initrd(self, initrd):
|
|
"""
|
|
Sets the initrd path for this QEMU VM.
|
|
|
|
:param initrd: QEMU initrd path
|
|
"""
|
|
|
|
initrd = self.manager.get_abs_image_path(initrd)
|
|
|
|
log.info('QEMU VM "{name}" [{id}] has set the QEMU initrd path to {initrd}'.format(name=self._name,
|
|
id=self._id,
|
|
initrd=initrd))
|
|
if "asa" in initrd:
|
|
self.project.emit("log.warning", {"message": "Warning ASA 8 is not supported by GNS3 and Cisco, you need to use ASAv. Depending of your hardware and OS this could not work or you could be limited to one instance. If ASA 8 is not booting their is no GNS3 solution, you need to upgrade to ASAv."})
|
|
self._initrd = initrd
|
|
|
|
@property
|
|
def kernel_image(self):
|
|
"""
|
|
Returns the kernel image path for this QEMU VM.
|
|
|
|
:returns: QEMU kernel image path
|
|
"""
|
|
|
|
return self._kernel_image
|
|
|
|
@kernel_image.setter
|
|
def kernel_image(self, kernel_image):
|
|
"""
|
|
Sets the kernel image path for this QEMU VM.
|
|
|
|
:param kernel_image: QEMU kernel image path
|
|
"""
|
|
|
|
kernel_image = self.manager.get_abs_image_path(kernel_image)
|
|
log.info('QEMU VM "{name}" [{id}] has set the QEMU kernel image path to {kernel_image}'.format(name=self._name,
|
|
id=self._id,
|
|
kernel_image=kernel_image))
|
|
self._kernel_image = kernel_image
|
|
|
|
@property
|
|
def kernel_command_line(self):
|
|
"""
|
|
Returns the kernel command line for this QEMU VM.
|
|
|
|
:returns: QEMU kernel command line
|
|
"""
|
|
|
|
return self._kernel_command_line
|
|
|
|
@kernel_command_line.setter
|
|
def kernel_command_line(self, kernel_command_line):
|
|
"""
|
|
Sets the kernel command line for this QEMU VM.
|
|
|
|
:param kernel_command_line: QEMU kernel command line
|
|
"""
|
|
|
|
log.info('QEMU VM "{name}" [{id}] has set the QEMU kernel command line to {kernel_command_line}'.format(name=self._name,
|
|
id=self._id,
|
|
kernel_command_line=kernel_command_line))
|
|
self._kernel_command_line = kernel_command_line
|
|
|
|
@asyncio.coroutine
|
|
def _set_process_priority(self):
|
|
"""
|
|
Changes the process priority
|
|
"""
|
|
|
|
if self._process_priority == "normal":
|
|
return
|
|
|
|
if sys.platform.startswith("win"):
|
|
try:
|
|
import win32api
|
|
import win32con
|
|
import win32process
|
|
except ImportError:
|
|
log.error("pywin32 must be installed to change the priority class for QEMU VM {}".format(self._name))
|
|
else:
|
|
log.info("Setting QEMU VM {} priority class to {}".format(self._name, self._process_priority))
|
|
handle = win32api.OpenProcess(win32con.PROCESS_ALL_ACCESS, 0, self._process.pid)
|
|
if self._process_priority == "realtime":
|
|
priority = win32process.REALTIME_PRIORITY_CLASS
|
|
elif self._process_priority == "very high":
|
|
priority = win32process.HIGH_PRIORITY_CLASS
|
|
elif self._process_priority == "high":
|
|
priority = win32process.ABOVE_NORMAL_PRIORITY_CLASS
|
|
elif self._process_priority == "low":
|
|
priority = win32process.BELOW_NORMAL_PRIORITY_CLASS
|
|
elif self._process_priority == "very low":
|
|
priority = win32process.IDLE_PRIORITY_CLASS
|
|
else:
|
|
priority = win32process.NORMAL_PRIORITY_CLASS
|
|
try:
|
|
win32process.SetPriorityClass(handle, priority)
|
|
except win32process.error as e:
|
|
log.error('Could not change process priority for QEMU VM "{}": {}'.format(self._name, e))
|
|
else:
|
|
if self._process_priority == "realtime":
|
|
priority = -20
|
|
elif self._process_priority == "very high":
|
|
priority = -15
|
|
elif self._process_priority == "high":
|
|
priority = -5
|
|
elif self._process_priority == "low":
|
|
priority = 5
|
|
elif self._process_priority == "very low":
|
|
priority = 19
|
|
else:
|
|
priority = 0
|
|
try:
|
|
process = yield from asyncio.create_subprocess_exec('renice', '-n', str(priority), '-p', str(self._process.pid))
|
|
yield from process.wait()
|
|
except (OSError, subprocess.SubprocessError) as e:
|
|
log.error('Could not change process priority for QEMU VM "{}": {}'.format(self._name, e))
|
|
|
|
def _stop_cpulimit(self):
|
|
"""
|
|
Stops the cpulimit process.
|
|
"""
|
|
|
|
if self._cpulimit_process and self._cpulimit_process.returncode is None:
|
|
self._cpulimit_process.kill()
|
|
try:
|
|
self._process.wait(3)
|
|
except subprocess.TimeoutExpired:
|
|
log.error("Could not kill cpulimit process {}".format(self._cpulimit_process.pid))
|
|
|
|
def _set_cpu_throttling(self):
|
|
"""
|
|
Limits the CPU usage for current QEMU process.
|
|
"""
|
|
|
|
if not self.is_running():
|
|
return
|
|
|
|
try:
|
|
if sys.platform.startswith("win") and hasattr(sys, "frozen"):
|
|
cpulimit_exec = os.path.join(os.path.dirname(os.path.abspath(sys.executable)), "cpulimit", "cpulimit.exe")
|
|
else:
|
|
cpulimit_exec = "cpulimit"
|
|
subprocess.Popen([cpulimit_exec, "--lazy", "--pid={}".format(self._process.pid), "--limit={}".format(self._cpu_throttling)], cwd=self.working_dir)
|
|
log.info("CPU throttled to {}%".format(self._cpu_throttling))
|
|
except FileNotFoundError:
|
|
raise QemuError("cpulimit could not be found, please install it or deactivate CPU throttling")
|
|
except (OSError, subprocess.SubprocessError) as e:
|
|
raise QemuError("Could not throttle CPU: {}".format(e))
|
|
|
|
@asyncio.coroutine
|
|
def start(self):
|
|
"""
|
|
Starts this QEMU VM.
|
|
"""
|
|
|
|
with (yield from self._execute_lock):
|
|
if self.is_running():
|
|
# resume the VM if it is paused
|
|
yield from self.resume()
|
|
return
|
|
|
|
if self._manager.config.get_section_config("Qemu").getboolean("monitor", True):
|
|
try:
|
|
info = socket.getaddrinfo(self._monitor_host, 0, socket.AF_UNSPEC, socket.SOCK_STREAM, 0, socket.AI_PASSIVE)
|
|
if not info:
|
|
raise QemuError("getaddrinfo returns an empty list on {}".format(self._monitor_host))
|
|
for res in info:
|
|
af, socktype, proto, _, sa = res
|
|
# let the OS find an unused port for the Qemu monitor
|
|
with socket.socket(af, socktype, proto) as sock:
|
|
sock.bind(sa)
|
|
self._monitor = sock.getsockname()[1]
|
|
except OSError as e:
|
|
raise QemuError("Could not find free port for the Qemu monitor: {}".format(e))
|
|
|
|
# check if there is enough RAM to run
|
|
self.check_available_ram(self.ram)
|
|
|
|
command = yield from self._build_command()
|
|
command_string = " ".join(shlex.quote(s) for s in command)
|
|
try:
|
|
log.info("Starting QEMU with: {}".format(command_string))
|
|
self._stdout_file = os.path.join(self.working_dir, "qemu.log")
|
|
log.info("logging to {}".format(self._stdout_file))
|
|
with open(self._stdout_file, "w", encoding="utf-8") as fd:
|
|
fd.write("Start QEMU with {}\n\nExecution log:\n".format(command_string))
|
|
self.command_line = ' '.join(command)
|
|
self._process = yield from asyncio.create_subprocess_exec(*command,
|
|
stdout=fd,
|
|
stderr=subprocess.STDOUT,
|
|
cwd=self.working_dir)
|
|
|
|
if self.use_ubridge:
|
|
yield from self._start_ubridge()
|
|
for adapter_number, adapter in enumerate(self._ethernet_adapters):
|
|
nio = adapter.get_nio(0)
|
|
if nio:
|
|
yield from self._add_ubridge_udp_connection("QEMU-{}-{}".format(self._id, adapter_number),
|
|
self._local_udp_tunnels[adapter_number][1],
|
|
nio)
|
|
|
|
log.info('QEMU VM "{}" started PID={}'.format(self._name, self._process.pid))
|
|
self.status = "started"
|
|
monitor_process(self._process, self._termination_callback)
|
|
except (OSError, subprocess.SubprocessError, UnicodeEncodeError) as e:
|
|
stdout = self.read_stdout()
|
|
log.error("Could not start QEMU {}: {}\n{}".format(self.qemu_path, e, stdout))
|
|
raise QemuError("Could not start QEMU {}: {}\n{}".format(self.qemu_path, e, stdout))
|
|
|
|
yield from self._set_process_priority()
|
|
if self._cpu_throttling:
|
|
self._set_cpu_throttling()
|
|
|
|
if "-enable-kvm" in command_string:
|
|
self._hw_virtualization = True
|
|
try:
|
|
yield from self.start_wrap_console()
|
|
except OSError as e:
|
|
raise QemuError("Could not start QEMU console {}\n".format(e))
|
|
|
|
@asyncio.coroutine
|
|
def _termination_callback(self, returncode):
|
|
"""
|
|
Called when the process has stopped.
|
|
|
|
:param returncode: Process returncode
|
|
"""
|
|
|
|
if self.started:
|
|
log.info("QEMU process has stopped, return code: %d", returncode)
|
|
yield from self.stop()
|
|
# A return code of 1 seem fine on Windows
|
|
if returncode != 0 and (returncode != 1 or not sys.platform.startswith("win")):
|
|
self.project.emit("log.error", {"message": "QEMU process has stopped, return code: {}\n{}".format(returncode, self.read_stdout())})
|
|
|
|
@asyncio.coroutine
|
|
def stop(self):
|
|
"""
|
|
Stops this QEMU VM.
|
|
"""
|
|
|
|
yield from self._stop_ubridge()
|
|
with (yield from self._execute_lock):
|
|
# stop the QEMU process
|
|
self._hw_virtualization = False
|
|
if self.is_running():
|
|
log.info('Stopping QEMU VM "{}" PID={}'.format(self._name, self._process.pid))
|
|
try:
|
|
if self.acpi_shutdown:
|
|
yield from self._control_vm("system_powerdown")
|
|
yield from gns3server.utils.asyncio.wait_for_process_termination(self._process, timeout=30)
|
|
else:
|
|
self._process.terminate()
|
|
yield from gns3server.utils.asyncio.wait_for_process_termination(self._process, timeout=3)
|
|
except ProcessLookupError:
|
|
pass
|
|
except asyncio.TimeoutError:
|
|
if self._process:
|
|
try:
|
|
self._process.kill()
|
|
except ProcessLookupError:
|
|
pass
|
|
if self._process.returncode is None:
|
|
log.warn('QEMU VM "{}" PID={} is still running'.format(self._name, self._process.pid))
|
|
self._process = None
|
|
self._stop_cpulimit()
|
|
yield from super().stop()
|
|
|
|
@asyncio.coroutine
|
|
def _control_vm(self, command, expected=None):
|
|
"""
|
|
Executes a command with QEMU monitor when this VM is running.
|
|
|
|
:param command: QEMU monitor command (e.g. info status, stop etc.)
|
|
:param expected: An array of expected strings
|
|
|
|
:returns: result of the command (matched object or None)
|
|
"""
|
|
|
|
result = None
|
|
if self.is_running() and self._monitor:
|
|
log.debug("Execute QEMU monitor command: {}".format(command))
|
|
try:
|
|
log.info("Connecting to Qemu monitor on {}:{}".format(self._monitor_host, self._monitor))
|
|
reader, writer = yield from asyncio.open_connection(self._monitor_host, self._monitor)
|
|
except OSError as e:
|
|
log.warn("Could not connect to QEMU monitor: {}".format(e))
|
|
return result
|
|
try:
|
|
writer.write(command.encode('ascii') + b"\n")
|
|
except OSError as e:
|
|
log.warn("Could not write to QEMU monitor: {}".format(e))
|
|
writer.close()
|
|
return result
|
|
if expected:
|
|
try:
|
|
while result is None:
|
|
line = yield from reader.readline()
|
|
if not line:
|
|
break
|
|
for expect in expected:
|
|
if expect in line:
|
|
result = line.decode("utf-8").strip()
|
|
break
|
|
except EOFError as e:
|
|
log.warn("Could not read from QEMU monitor: {}".format(e))
|
|
writer.close()
|
|
return result
|
|
|
|
@asyncio.coroutine
|
|
def close(self):
|
|
"""
|
|
Closes this QEMU VM.
|
|
"""
|
|
|
|
if not (yield from super().close()):
|
|
return False
|
|
|
|
self.acpi_shutdown = False
|
|
yield from self.stop()
|
|
|
|
for adapter in self._ethernet_adapters:
|
|
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 udp_tunnel in self._local_udp_tunnels.values():
|
|
self.manager.port_manager.release_udp_port(udp_tunnel[0].lport, self._project)
|
|
self.manager.port_manager.release_udp_port(udp_tunnel[1].lport, self._project)
|
|
self._local_udp_tunnels = {}
|
|
|
|
@asyncio.coroutine
|
|
def _get_vm_status(self):
|
|
"""
|
|
Returns this VM suspend status.
|
|
|
|
Status are extracted from:
|
|
https://github.com/qemu/qemu/blob/master/qapi-schema.json#L152
|
|
|
|
:returns: status (string)
|
|
"""
|
|
|
|
result = yield from self._control_vm("info status", [
|
|
b"debug", b"inmigrate", b"internal-error", b"io-error",
|
|
b"paused", b"postmigrate", b"prelaunch", b"finish-migrate",
|
|
b"restore-vm", b"running", b"save-vm", b"shutdown", b"suspended",
|
|
b"watchdog", b"guest-panicked"
|
|
])
|
|
if result is None:
|
|
return result
|
|
status = result.rsplit(' ', 1)[1]
|
|
if status == "running" or status == "prelaunch":
|
|
self.status = "started"
|
|
elif status == "suspended":
|
|
self.status = "suspended"
|
|
elif status == "shutdown":
|
|
self.status = "stopped"
|
|
return status
|
|
|
|
@asyncio.coroutine
|
|
def suspend(self):
|
|
"""
|
|
Suspends this QEMU VM.
|
|
"""
|
|
|
|
if self.is_running():
|
|
vm_status = yield from self._get_vm_status()
|
|
if vm_status is None:
|
|
raise QemuError("Suspending a QEMU VM is not supported")
|
|
elif vm_status == "running" or vm_status == "prelaunch":
|
|
yield from self._control_vm("stop")
|
|
self.status = "suspended"
|
|
log.debug("QEMU VM has been suspended")
|
|
else:
|
|
log.info("QEMU VM is not running to be suspended, current status is {}".format(vm_status))
|
|
|
|
@asyncio.coroutine
|
|
def reload(self):
|
|
"""
|
|
Reloads this QEMU VM.
|
|
"""
|
|
|
|
yield from self._control_vm("system_reset")
|
|
log.debug("QEMU VM has been reset")
|
|
|
|
@asyncio.coroutine
|
|
def resume(self):
|
|
"""
|
|
Resumes this QEMU VM.
|
|
"""
|
|
|
|
vm_status = yield from self._get_vm_status()
|
|
if vm_status is None:
|
|
raise QemuError("Resuming a QEMU VM is not supported")
|
|
elif vm_status == "paused":
|
|
yield from self._control_vm("cont")
|
|
log.debug("QEMU VM has been resumed")
|
|
else:
|
|
log.info("QEMU VM is not paused to be resumed, current status is {}".format(vm_status))
|
|
|
|
@asyncio.coroutine
|
|
def adapter_add_nio_binding(self, adapter_number, nio):
|
|
"""
|
|
Adds a port NIO binding.
|
|
|
|
:param adapter_number: adapter number
|
|
:param nio: NIO instance to add to the adapter
|
|
"""
|
|
|
|
try:
|
|
adapter = self._ethernet_adapters[adapter_number]
|
|
except IndexError:
|
|
raise QemuError('Adapter {adapter_number} does not exist on QEMU VM "{name}"'.format(name=self._name,
|
|
adapter_number=adapter_number))
|
|
|
|
if self.ubridge:
|
|
try:
|
|
yield from self._add_ubridge_udp_connection("QEMU-{}-{}".format(self._id, adapter_number),
|
|
self._local_udp_tunnels[adapter_number][1],
|
|
nio)
|
|
except IndexError:
|
|
raise QemuError('Adapter {adapter_number} does not exist on QEMU VM "{name}"'.format(name=self._name,
|
|
adapter_number=adapter_number))
|
|
elif self.is_running():
|
|
raise QemuError("Sorry, adding a link to a started Qemu VM is not supported without using uBridge.")
|
|
|
|
adapter.add_nio(0, nio)
|
|
log.info('QEMU VM "{name}" [{id}]: {nio} added to adapter {adapter_number}'.format(name=self._name,
|
|
id=self._id,
|
|
nio=nio,
|
|
adapter_number=adapter_number))
|
|
|
|
@asyncio.coroutine
|
|
def adapter_remove_nio_binding(self, adapter_number):
|
|
"""
|
|
Removes a port NIO binding.
|
|
|
|
:param adapter_number: adapter number
|
|
|
|
:returns: NIO instance
|
|
"""
|
|
|
|
try:
|
|
adapter = self._ethernet_adapters[adapter_number]
|
|
except IndexError:
|
|
raise QemuError('Adapter {adapter_number} does not exist on QEMU VM "{name}"'.format(name=self._name,
|
|
adapter_number=adapter_number))
|
|
|
|
if self.ubridge:
|
|
yield from self._ubridge_send("bridge delete {name}".format(name="QEMU-{}-{}".format(self._id, adapter_number)))
|
|
elif self.is_running():
|
|
raise QemuError("Sorry, removing a link to a started Qemu VM is not supported without using uBridge.")
|
|
|
|
nio = adapter.get_nio(0)
|
|
if isinstance(nio, NIOUDP):
|
|
self.manager.port_manager.release_udp_port(nio.lport, self._project)
|
|
adapter.remove_nio(0)
|
|
|
|
log.info('QEMU VM "{name}" [{id}]: {nio} removed from adapter {adapter_number}'.format(name=self._name,
|
|
id=self._id,
|
|
nio=nio,
|
|
adapter_number=adapter_number))
|
|
return nio
|
|
|
|
@asyncio.coroutine
|
|
def start_capture(self, adapter_number, output_file):
|
|
"""
|
|
Starts a packet capture.
|
|
|
|
:param adapter_number: adapter number
|
|
:param output_file: PCAP destination file for the capture
|
|
"""
|
|
|
|
try:
|
|
adapter = self._ethernet_adapters[adapter_number]
|
|
except IndexError:
|
|
raise QemuError('Adapter {adapter_number} does not exist on QEMU VM "{name}"'.format(name=self._name,
|
|
adapter_number=adapter_number))
|
|
|
|
if not self.use_ubridge:
|
|
raise QemuError("uBridge must be enabled in order to start packet capture")
|
|
|
|
nio = adapter.get_nio(0)
|
|
|
|
if not nio:
|
|
raise QemuError("Adapter {} is not connected".format(adapter_number))
|
|
|
|
if nio.capturing:
|
|
raise QemuError("Packet capture is already activated on adapter {adapter_number}".format(adapter_number=adapter_number))
|
|
|
|
nio.startPacketCapture(output_file)
|
|
|
|
if self.ubridge:
|
|
yield from self._ubridge_send('bridge start_capture {name} "{output_file}"'.format(name="QEMU-{}-{}".format(self._id, adapter_number),
|
|
output_file=output_file))
|
|
|
|
log.info("QEMU VM '{name}' [{id}]: starting packet capture on adapter {adapter_number}".format(name=self.name,
|
|
id=self.id,
|
|
adapter_number=adapter_number))
|
|
|
|
def stop_capture(self, adapter_number):
|
|
"""
|
|
Stops a packet capture.
|
|
|
|
:param adapter_number: adapter number
|
|
"""
|
|
|
|
try:
|
|
adapter = self._ethernet_adapters[adapter_number]
|
|
except IndexError:
|
|
raise QemuError('Adapter {adapter_number} does not exist on QEMU VM "{name}"'.format(name=self._name,
|
|
adapter_number=adapter_number))
|
|
nio = adapter.get_nio(0)
|
|
|
|
if not nio:
|
|
raise QemuError("Adapter {} is not connected".format(adapter_number))
|
|
|
|
nio.stopPacketCapture()
|
|
|
|
if self.ubridge:
|
|
yield from self._ubridge_send('bridge stop_capture {name}'.format(name="QEMU-{}-{}".format(self._id, adapter_number)))
|
|
|
|
log.info("QEMU VM '{name}' [{id}]: stopping packet capture on adapter {adapter_number}".format(name=self.name,
|
|
id=self.id,
|
|
adapter_number=adapter_number))
|
|
|
|
@property
|
|
def started(self):
|
|
"""
|
|
Returns either this QEMU VM has been started or not.
|
|
|
|
:returns: boolean
|
|
"""
|
|
|
|
return self.status == "started"
|
|
|
|
def read_stdout(self):
|
|
"""
|
|
Reads the standard output of the QEMU process.
|
|
Only use when the process has been stopped or has crashed.
|
|
"""
|
|
|
|
output = ""
|
|
if self._stdout_file:
|
|
try:
|
|
with open(self._stdout_file, "rb") as file:
|
|
output = file.read().decode("utf-8", errors="replace")
|
|
except OSError as e:
|
|
log.warn("Could not read {}: {}".format(self._stdout_file, e))
|
|
return output
|
|
|
|
def is_running(self):
|
|
"""
|
|
Checks if the QEMU process is running
|
|
|
|
:returns: True or False
|
|
"""
|
|
|
|
if self._process:
|
|
if self._process.returncode is None:
|
|
return True
|
|
else:
|
|
self._process = None
|
|
return False
|
|
|
|
def command(self):
|
|
"""
|
|
Returns the QEMU command line.
|
|
|
|
:returns: QEMU command line (string)
|
|
"""
|
|
|
|
return " ".join(self._build_command())
|
|
|
|
def _serial_options(self):
|
|
|
|
if self._console:
|
|
return ["-serial", "telnet:127.0.0.1:{},server,nowait".format(self._internal_console_port)]
|
|
else:
|
|
return []
|
|
|
|
def _vnc_options(self):
|
|
|
|
if self._console:
|
|
vnc_port = self._console - 5900 # subtract by 5900 to get the display number
|
|
return ["-vnc", "{}:{}".format(self._manager.port_manager.console_host, vnc_port)]
|
|
else:
|
|
return []
|
|
|
|
def _monitor_options(self):
|
|
|
|
if self._monitor:
|
|
return ["-monitor", "tcp:{}:{},server,nowait".format(self._monitor_host, self._monitor)]
|
|
else:
|
|
return []
|
|
|
|
def _get_qemu_img(self):
|
|
"""
|
|
Search the qemu-img binary in the same binary of the qemu binary
|
|
for avoiding version incompatibily.
|
|
|
|
:returns: qemu-img path or raise an error
|
|
"""
|
|
qemu_img_path = ""
|
|
qemu_path_dir = os.path.dirname(self.qemu_path)
|
|
try:
|
|
for f in os.listdir(qemu_path_dir):
|
|
if f.startswith("qemu-img"):
|
|
qemu_img_path = os.path.join(qemu_path_dir, f)
|
|
except OSError as e:
|
|
raise QemuError("Error while looking for qemu-img in {}: {}".format(qemu_path_dir, e))
|
|
|
|
if not qemu_img_path:
|
|
raise QemuError("Could not find qemu-img in {}".format(qemu_path_dir))
|
|
|
|
return qemu_img_path
|
|
|
|
@asyncio.coroutine
|
|
def _disk_options(self):
|
|
options = []
|
|
qemu_img_path = self._get_qemu_img()
|
|
|
|
drives = ["a", "b", "c", "d"]
|
|
|
|
for disk_index, drive in enumerate(drives):
|
|
disk_image = getattr(self, "_hd{}_disk_image".format(drive))
|
|
interface = getattr(self, "hd{}_disk_interface".format(drive))
|
|
|
|
if not disk_image:
|
|
continue
|
|
|
|
disk_name = "hd" + drive
|
|
|
|
if not os.path.isfile(disk_image) or not os.path.exists(disk_image):
|
|
if os.path.islink(disk_image):
|
|
raise QemuError("{} disk image '{}' linked to '{}' is not accessible".format(disk_name, disk_image, os.path.realpath(disk_image)))
|
|
else:
|
|
raise QemuError("{} disk image '{}' is not accessible".format(disk_name, disk_image))
|
|
if self.linked_clone:
|
|
disk = os.path.join(self.working_dir, "{}_disk.qcow2".format(disk_name))
|
|
if not os.path.exists(disk):
|
|
# create the disk
|
|
try:
|
|
process = yield from asyncio.create_subprocess_exec(qemu_img_path, "create", "-o",
|
|
"backing_file={}".format(disk_image),
|
|
"-f", "qcow2", disk)
|
|
retcode = yield from process.wait()
|
|
if retcode is not None and retcode != 0:
|
|
raise QemuError("Could not create {} disk image".format(disk_name))
|
|
log.info("{} returned with {}".format(qemu_img_path, retcode))
|
|
except (OSError, subprocess.SubprocessError) as e:
|
|
raise QemuError("Could not create {} disk image {}".format(disk_name, e))
|
|
else:
|
|
# The disk exists we check if the clone work
|
|
try:
|
|
qcow2 = Qcow2(disk)
|
|
yield from qcow2.rebase(qemu_img_path, disk_image)
|
|
except (Qcow2Error, OSError) as e:
|
|
raise QemuError("Could not use qcow2 disk image {} for {} {}".format(disk_image, disk_name, e))
|
|
|
|
else:
|
|
disk = disk_image
|
|
|
|
if interface == "sata":
|
|
# special case, sata controller doesn't exist in Qemu
|
|
options.extend(["-device", 'ahci,id=ahci{},bus=pci.{}'.format(disk_index, disk_index)])
|
|
options.extend(["-drive", 'file={},if=none,id=drive-sata-disk{},index={},media=disk'.format(disk, disk_index, disk_index)])
|
|
options.extend(["-device", 'ide-drive,drive=drive-sata-disk{},bus=ahci{}.0,id=drive-sata-disk{}'.format(disk_index, disk_index, disk_index)])
|
|
else:
|
|
options.extend(["-drive", 'file={},if={},index={},media=disk'.format(disk, interface, disk_index)])
|
|
|
|
return options
|
|
|
|
def _cdrom_option(self):
|
|
|
|
options = []
|
|
if self._cdrom_image:
|
|
if not os.path.isfile(self._cdrom_image) or not os.path.exists(self._cdrom_image):
|
|
if os.path.islink(self._cdrom_image):
|
|
raise QemuError("cdrom image '{}' linked to '{}' is not accessible".format(self._cdrom_image, os.path.realpath(self._cdrom_image)))
|
|
else:
|
|
raise QemuError("cdrom image '{}' is not accessible".format(self._cdrom_image))
|
|
if self._hdc_disk_image:
|
|
raise QemuError("You cannot use a disk image on hdc disk and a CDROM image at the same time")
|
|
options.extend(["-cdrom", self._cdrom_image])
|
|
return options
|
|
|
|
def _bios_option(self):
|
|
|
|
options = []
|
|
if self._bios_image:
|
|
if not os.path.isfile(self._bios_image) or not os.path.exists(self._bios_image):
|
|
if os.path.islink(self._bios_image):
|
|
raise QemuError("bios image '{}' linked to '{}' is not accessible".format(self._bios_image, os.path.realpath(self._bios_image)))
|
|
else:
|
|
raise QemuError("bios image '{}' is not accessible".format(self._bios_image))
|
|
options.extend(["-bios", self._bios_image])
|
|
return options
|
|
|
|
def _linux_boot_options(self):
|
|
|
|
options = []
|
|
if self._initrd:
|
|
if not os.path.isfile(self._initrd) or not os.path.exists(self._initrd):
|
|
if os.path.islink(self._initrd):
|
|
raise QemuError("initrd file '{}' linked to '{}' is not accessible".format(self._initrd, os.path.realpath(self._initrd)))
|
|
else:
|
|
raise QemuError("initrd file '{}' is not accessible".format(self._initrd))
|
|
options.extend(["-initrd", self._initrd])
|
|
if self._kernel_image:
|
|
if not os.path.isfile(self._kernel_image) or not os.path.exists(self._kernel_image):
|
|
if os.path.islink(self._kernel_image):
|
|
raise QemuError("kernel image '{}' linked to '{}' is not accessible".format(self._kernel_image, os.path.realpath(self._kernel_image)))
|
|
else:
|
|
raise QemuError("kernel image '{}' is not accessible".format(self._kernel_image))
|
|
options.extend(["-kernel", self._kernel_image])
|
|
if self._kernel_command_line:
|
|
options.extend(["-append", self._kernel_command_line])
|
|
|
|
return options
|
|
|
|
@asyncio.coroutine
|
|
def _network_options(self):
|
|
|
|
network_options = []
|
|
network_options.extend(["-net", "none"]) # we do not want any user networking back-end if no adapter is connected.
|
|
|
|
patched_qemu = False
|
|
if self._legacy_networking:
|
|
version = yield from self.manager.get_qemu_version(self.qemu_path)
|
|
if version and parse_version(version) < parse_version("1.1.0"):
|
|
# this is a patched Qemu if version is below 1.1.0
|
|
patched_qemu = True
|
|
|
|
# Each 32 PCI device we need to add a PCI bridge with max 9 bridges
|
|
pci_devices = 4 + len(self._ethernet_adapters) # 4 PCI devices are use by default by qemu
|
|
bridge_id = 0
|
|
for bridge_id in range(1, math.floor(pci_devices / 32) + 1):
|
|
network_options.extend(["-device", "i82801b11-bridge,id=dmi_pci_bridge{bridge_id}".format(bridge_id=bridge_id)])
|
|
network_options.extend(["-device", "pci-bridge,id=pci-bridge{bridge_id},bus=dmi_pci_bridge{bridge_id},chassis_nr=0x1,addr=0x{bridge_id},shpc=off".format(bridge_id=bridge_id)])
|
|
|
|
if bridge_id > 1:
|
|
qemu_version = yield from self.manager.get_qemu_version(self.qemu_path)
|
|
if qemu_version and parse_version(qemu_version) < parse_version("2.4.0"):
|
|
raise QemuError("Qemu version 2.4 or later is required to run this VM with a large number of network adapters")
|
|
|
|
pci_device_id = 4 + bridge_id # Bridge consume PCI ports
|
|
|
|
for adapter_number, adapter in enumerate(self._ethernet_adapters):
|
|
mac = int_to_macaddress(macaddress_to_int(self._mac_address) + adapter_number)
|
|
|
|
if self.use_ubridge:
|
|
# use a local UDP tunnel to connect to uBridge instead
|
|
if adapter_number not in self._local_udp_tunnels:
|
|
self._local_udp_tunnels[adapter_number] = self._create_local_udp_tunnel()
|
|
nio = self._local_udp_tunnels[adapter_number][0]
|
|
else:
|
|
nio = adapter.get_nio(0)
|
|
if self._legacy_networking:
|
|
# legacy QEMU networking syntax (-net)
|
|
if nio:
|
|
network_options.extend(["-net", "nic,vlan={},macaddr={},model={}".format(adapter_number, mac, self._adapter_type)])
|
|
if isinstance(nio, NIOUDP):
|
|
if patched_qemu:
|
|
# use patched Qemu syntax
|
|
network_options.extend(["-net", "udp,vlan={},name=gns3-{},sport={},dport={},daddr={}".format(adapter_number,
|
|
adapter_number,
|
|
nio.lport,
|
|
nio.rport,
|
|
nio.rhost)])
|
|
else:
|
|
# use UDP tunnel support added in Qemu 1.1.0
|
|
network_options.extend(["-net", "socket,vlan={},name=gns3-{},udp={}:{},localaddr={}:{}".format(adapter_number,
|
|
adapter_number,
|
|
nio.rhost,
|
|
nio.rport,
|
|
"127.0.0.1",
|
|
nio.lport)])
|
|
elif isinstance(nio, NIOTAP):
|
|
network_options.extend(["-net", "tap,name=gns3-{},ifname={}".format(adapter_number, nio.tap_device)])
|
|
else:
|
|
network_options.extend(["-net", "nic,vlan={},macaddr={},model={}".format(adapter_number, mac, self._adapter_type)])
|
|
|
|
else:
|
|
# newer QEMU networking syntax
|
|
device_string = "{},mac={}".format(self._adapter_type, mac)
|
|
bridge_id = math.floor(pci_device_id / 32)
|
|
if bridge_id > 0:
|
|
addr = pci_device_id % 32
|
|
device_string = "{},bus=pci-bridge{bridge_id},addr=0x{addr:02x}".format(device_string, bridge_id=bridge_id, addr=addr)
|
|
pci_device_id += 1
|
|
if nio:
|
|
network_options.extend(["-device", "{},netdev=gns3-{}".format(device_string, adapter_number)])
|
|
if isinstance(nio, NIOUDP):
|
|
network_options.extend(["-netdev", "socket,id=gns3-{},udp={}:{},localaddr={}:{}".format(adapter_number,
|
|
nio.rhost,
|
|
nio.rport,
|
|
"127.0.0.1",
|
|
nio.lport)])
|
|
elif isinstance(nio, NIOTAP):
|
|
network_options.extend(["-netdev", "tap,id=gns3-{},ifname={},script=no,downscript=no".format(adapter_number, nio.tap_device)])
|
|
else:
|
|
network_options.extend(["-device", device_string])
|
|
|
|
return network_options
|
|
|
|
def _graphic(self):
|
|
"""
|
|
Adds the correct graphic options depending of the OS
|
|
"""
|
|
|
|
if sys.platform.startswith("win"):
|
|
return []
|
|
if len(os.environ.get("DISPLAY", "")) > 0:
|
|
return []
|
|
return ["-nographic"]
|
|
|
|
def _run_with_kvm(self, qemu_path, options):
|
|
"""
|
|
Check if we could run qemu with KVM
|
|
|
|
:param qemu_path: Path to qemu
|
|
:param options: String of qemu user options
|
|
:returns: Boolean True if we need to enable KVM
|
|
"""
|
|
|
|
if sys.platform.startswith("linux") and self.manager.config.get_section_config("Qemu").getboolean("enable_kvm", True) \
|
|
and "-no-kvm" not in options:
|
|
|
|
# Turn OFF kvm for non x86 architectures
|
|
if os.path.basename(qemu_path) not in ["qemu-system-x86_64", "qemu-system-i386", "qemu-kvm"]:
|
|
return False
|
|
|
|
if not os.path.exists("/dev/kvm"):
|
|
raise QemuError("KVM acceleration cannot be used (/dev/kvm doesn't exist). You can turn off KVM support in the gns3_server.conf by adding enable_kvm = false to the [Qemu] section.")
|
|
return True
|
|
return False
|
|
|
|
@asyncio.coroutine
|
|
def _build_command(self):
|
|
"""
|
|
Command to start the QEMU process.
|
|
(to be passed to subprocess.Popen())
|
|
"""
|
|
|
|
additional_options = self._options.strip()
|
|
command = [self.qemu_path]
|
|
command.extend(["-name", self._name])
|
|
command.extend(["-m", "{}M".format(self._ram)])
|
|
command.extend(["-smp", "cpus={}".format(self._cpus)])
|
|
if self._run_with_kvm(self.qemu_path, self._options):
|
|
command.extend(["-enable-kvm"])
|
|
version = yield from self.manager.get_qemu_version(self.qemu_path)
|
|
# Issue on some combo Intel CPU + KVM + Qemu 2.4.0
|
|
# https://github.com/GNS3/gns3-server/issues/685
|
|
if version and parse_version(version) >= parse_version("2.4.0") and self.platform == "x86_64":
|
|
command.extend(["-machine", "smm=off"])
|
|
command.extend(["-boot", "order={}".format(self._boot_priority)])
|
|
command.extend(self._bios_option())
|
|
command.extend(self._cdrom_option())
|
|
command.extend((yield from self._disk_options()))
|
|
command.extend(self._linux_boot_options())
|
|
if "-uuid" not in additional_options:
|
|
command.extend(["-uuid", self._id])
|
|
if self._console_type == "telnet":
|
|
command.extend(self._serial_options())
|
|
elif self._console_type == "vnc":
|
|
command.extend(self._vnc_options())
|
|
else:
|
|
raise QemuError("Console type {} is unknown".format(self._console_type))
|
|
command.extend(self._monitor_options())
|
|
command.extend((yield from self._network_options()))
|
|
command.extend(self._graphic())
|
|
if additional_options:
|
|
try:
|
|
command.extend(shlex.split(additional_options))
|
|
except ValueError as e:
|
|
raise QemuError("Invalid additional options: {} error {}".format(additional_options, e))
|
|
return command
|
|
|
|
def __json__(self):
|
|
answer = {
|
|
"project_id": self.project.id,
|
|
"node_id": self.id,
|
|
"node_directory": self.working_dir
|
|
}
|
|
# Qemu has a long list of options. The JSON schema is the single source of information
|
|
for field in QEMU_OBJECT_SCHEMA["required"]:
|
|
if field not in answer:
|
|
try:
|
|
answer[field] = getattr(self, field)
|
|
except AttributeError:
|
|
pass
|
|
answer["hda_disk_image"] = self.manager.get_relative_image_path(self._hda_disk_image)
|
|
answer["hda_disk_image_md5sum"] = md5sum(self._hda_disk_image)
|
|
answer["hdb_disk_image"] = self.manager.get_relative_image_path(self._hdb_disk_image)
|
|
answer["hdb_disk_image_md5sum"] = md5sum(self._hdb_disk_image)
|
|
answer["hdc_disk_image"] = self.manager.get_relative_image_path(self._hdc_disk_image)
|
|
answer["hdc_disk_image_md5sum"] = md5sum(self._hdc_disk_image)
|
|
answer["hdd_disk_image"] = self.manager.get_relative_image_path(self._hdd_disk_image)
|
|
answer["hdd_disk_image_md5sum"] = md5sum(self._hdd_disk_image)
|
|
answer["cdrom_image"] = self.manager.get_relative_image_path(self._cdrom_image)
|
|
answer["cdrom_image_md5sum"] = md5sum(self._cdrom_image)
|
|
answer["bios_image"] = self.manager.get_relative_image_path(self._bios_image)
|
|
answer["bios_image_md5sum"] = md5sum(self._bios_image)
|
|
answer["initrd"] = self.manager.get_relative_image_path(self._initrd)
|
|
answer["initrd_md5sum"] = md5sum(self._initrd)
|
|
|
|
answer["kernel_image"] = self.manager.get_relative_image_path(self._kernel_image)
|
|
answer["kernel_image_md5sum"] = md5sum(self._kernel_image)
|
|
|
|
return answer
|