mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-13 20:08:55 +00:00
1850 lines
76 KiB
Python
1850 lines
76 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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import time
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from gns3server.utils import parse_version
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from gns3server.utils.asyncio import subprocess_check_output, cancellable_wait_run_in_executor
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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, linked_clone=linked_clone, 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._qemu_img_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 ethernet_adapters(self):
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"""
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Return the list of ethernet adapters of the node
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"""
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return self._ethernet_adapters
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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:
|
|
# use the node UUID to generate a random MAC address
|
|
self._mac_address = "52:%s:%s:%s:%s:00" % (self.project.id[-4:-2], self.project.id[-2:], self.id[-4:-2], self.id[-2:])
|
|
else:
|
|
self._mac_address = mac_address
|
|
|
|
log.info('QEMU VM "{name}" [{id}]: MAC address changed to {mac_addr}'.format(name=self._name,
|
|
id=self._id,
|
|
mac_addr=self._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", "")
|
|
else:
|
|
if "-no-hax" in options:
|
|
options = options.replace("-no-hax", "")
|
|
if "-enable-hax" in options:
|
|
options = options.replace("-enable-hax", "")
|
|
if "-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, please use ASAv instead. 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 must 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 create(self):
|
|
"""
|
|
Creates QEMU VM and sets proper MD5 hashes
|
|
"""
|
|
|
|
# In case user upload image manually we don't have md5 sums.
|
|
# We need generate hashes at this point, otherwise they will be generated
|
|
# at __json__ but not on separate thread.
|
|
yield from cancellable_wait_run_in_executor(md5sum, self._hda_disk_image)
|
|
yield from cancellable_wait_run_in_executor(md5sum, self._hdb_disk_image)
|
|
yield from cancellable_wait_run_in_executor(md5sum, self._hdc_disk_image)
|
|
yield from cancellable_wait_run_in_executor(md5sum, self._hdd_disk_image)
|
|
|
|
super(QemuVM, self).create()
|
|
|
|
@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)
|
|
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 or "-enable-hax" in command_string:
|
|
self._hw_virtualization = True
|
|
|
|
yield from self._start_ubridge()
|
|
set_link_commands = []
|
|
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)
|
|
if nio.suspend:
|
|
set_link_commands.append("set_link gns3-{} off".format(adapter_number))
|
|
else:
|
|
set_link_commands.append("set_link gns3-{} off".format(adapter_number))
|
|
yield from self._control_vm_commands(set_link_commands)
|
|
|
|
try:
|
|
yield from self.start_wrap_console()
|
|
except OSError as e:
|
|
raise QemuError("Could not start Telnet 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.warning('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 _open_qemu_monitor_connection_vm(self, timeout=10):
|
|
"""
|
|
Opens a connection to the QEMU monitor.
|
|
|
|
:param timeout: timeout to connect to the monitor TCP server
|
|
:returns: The reader returned is a StreamReader instance; the writer is a StreamWriter instance
|
|
"""
|
|
|
|
begin = time.time()
|
|
connection_success = False
|
|
last_exception = None
|
|
reader = writer = None
|
|
while time.time() - begin < timeout:
|
|
yield from asyncio.sleep(0.01)
|
|
try:
|
|
log.debug("Connecting to Qemu monitor on {}:{}".format(self._monitor_host, self._monitor))
|
|
reader, writer = yield from asyncio.open_connection(self._monitor_host, self._monitor)
|
|
except (asyncio.TimeoutError, OSError) as e:
|
|
last_exception = e
|
|
continue
|
|
connection_success = True
|
|
break
|
|
|
|
if not connection_success:
|
|
log.warning("Could not connect to QEMU monitor on {}:{}: {}".format(self._monitor_host, self._monitor,
|
|
last_exception))
|
|
else:
|
|
log.info("Connected to QEMU monitor on {}:{} after {:.4f} seconds".format(self._monitor_host, self._monitor, time.time() - begin))
|
|
return reader, writer
|
|
|
|
@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.info("Execute QEMU monitor command: {}".format(command))
|
|
reader, writer = yield from self._open_qemu_monitor_connection_vm()
|
|
if reader is None and writer is None:
|
|
return result
|
|
|
|
try:
|
|
writer.write(command.encode('ascii') + b"\n")
|
|
except OSError as e:
|
|
log.warning("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.warning("Could not read from QEMU monitor: {}".format(e))
|
|
writer.close()
|
|
return result
|
|
|
|
@asyncio.coroutine
|
|
def _control_vm_commands(self, commands):
|
|
"""
|
|
Executes commands with QEMU monitor when this VM is running.
|
|
|
|
:param commands: a list of QEMU monitor commands (e.g. info status, stop etc.)
|
|
"""
|
|
|
|
if self.is_running() and self._monitor:
|
|
|
|
reader, writer = yield from self._open_qemu_monitor_connection_vm()
|
|
if reader is None and writer is None:
|
|
return
|
|
|
|
for command in commands:
|
|
log.info("Execute QEMU monitor command: {}".format(command))
|
|
try:
|
|
writer.write(command.encode('ascii') + b"\n")
|
|
except OSError as e:
|
|
log.warning("Could not write to QEMU monitor: {}".format(e))
|
|
writer.close()
|
|
|
|
@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.is_running():
|
|
try:
|
|
yield from self.add_ubridge_udp_connection("QEMU-{}-{}".format(self._id, adapter_number),
|
|
self._local_udp_tunnels[adapter_number][1],
|
|
nio)
|
|
yield from self._control_vm("set_link gns3-{} on".format(adapter_number))
|
|
except (IndexError, KeyError):
|
|
raise QemuError('Adapter {adapter_number} does not exist on QEMU VM "{name}"'.format(name=self._name,
|
|
adapter_number=adapter_number))
|
|
|
|
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_update_nio_binding(self, adapter_number, nio):
|
|
"""
|
|
Update a port NIO binding.
|
|
|
|
:param adapter_number: adapter number
|
|
:param nio: NIO instance to add to the adapter
|
|
"""
|
|
|
|
if self.is_running():
|
|
try:
|
|
yield from self.update_ubridge_udp_connection("QEMU-{}-{}".format(self._id, adapter_number),
|
|
self._local_udp_tunnels[adapter_number][1],
|
|
nio)
|
|
if nio.suspend:
|
|
yield from self._control_vm("set_link gns3-{} off".format(adapter_number))
|
|
else:
|
|
yield from self._control_vm("set_link gns3-{} on".format(adapter_number))
|
|
except IndexError:
|
|
raise QemuError('Adapter {adapter_number} does not exist on QEMU VM "{name}"'.format(name=self._name,
|
|
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.is_running():
|
|
yield from self._control_vm("set_link gns3-{} off".format(adapter_number))
|
|
yield from self._ubridge_send("bridge delete {name}".format(name="QEMU-{}-{}".format(self._id, adapter_number)))
|
|
|
|
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))
|
|
|
|
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.warning("Could not read {}: {}".format(self._stdout_file, e))
|
|
return output
|
|
|
|
def read_qemu_img_stdout(self):
|
|
"""
|
|
Reads the standard output of the QEMU-IMG process.
|
|
"""
|
|
|
|
output = ""
|
|
if self._qemu_img_stdout_file:
|
|
try:
|
|
with open(self._qemu_img_stdout_file, "rb") as file:
|
|
output = file.read().decode("utf-8", errors="replace")
|
|
except OSError as e:
|
|
log.warning("Could not read {}: {}".format(self._qemu_img_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 _spice_options(self):
|
|
|
|
if self._console:
|
|
console_host = self._manager.port_manager.console_host
|
|
if console_host == "0.0.0.0" and socket.has_ipv6:
|
|
# to fix an issue with Qemu when IPv4 is not enabled
|
|
# see https://github.com/GNS3/gns3-gui/issues/2352
|
|
# FIXME: consider making this more global (not just for Qemu + SPICE)
|
|
console_host = "::"
|
|
return ["-spice",
|
|
"addr={},port={},disable-ticketing".format(console_host, self._console),
|
|
"-vga", "qxl"]
|
|
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 _qemu_img_exec(self, command):
|
|
|
|
self._qemu_img_stdout_file = os.path.join(self.working_dir, "qemu-img.log")
|
|
log.info("logging to {}".format(self._qemu_img_stdout_file))
|
|
command_string = " ".join(shlex.quote(s) for s in command)
|
|
log.info("Executing qemu-img with: {}".format(command_string))
|
|
with open(self._qemu_img_stdout_file, "w", encoding="utf-8") as fd:
|
|
process = yield from asyncio.create_subprocess_exec(*command, stdout=fd, stderr=subprocess.STDOUT, cwd=self.working_dir)
|
|
retcode = yield from process.wait()
|
|
log.info("{} returned with {}".format(self._get_qemu_img(), retcode))
|
|
return retcode
|
|
|
|
@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))
|
|
else:
|
|
try:
|
|
# check for corrupt disk image
|
|
retcode = yield from self._qemu_img_exec([qemu_img_path, "check", disk_image])
|
|
if retcode == 3:
|
|
# image has leaked clusters, but is not corrupted, let's try to fix it
|
|
log.warning("Qemu image {} has leaked clusters".format(disk_image))
|
|
if (yield from self._qemu_img_exec([qemu_img_path, "check", "-r", "leaks", "{}".format(disk_image)])) == 3:
|
|
self.project.emit("log.warning", {"message": "Qemu image '{}' has leaked clusters and could not be fixed".format(disk_image)})
|
|
elif retcode == 2:
|
|
# image is corrupted, let's try to fix it
|
|
log.warning("Qemu image {} is corrupted".format(disk_image))
|
|
if (yield from self._qemu_img_exec([qemu_img_path, "check", "-r", "all", "{}".format(disk_image)])) == 2:
|
|
self.project.emit("log.warning", {"message": "Qemu image '{}' is corrupted and could not be fixed".format(disk_image)})
|
|
except (OSError, subprocess.SubprocessError) as e:
|
|
stdout = self.read_qemu_img_stdout()
|
|
raise QemuError("Could not check '{}' disk image: {}\n{}".format(disk_name, e, stdout))
|
|
|
|
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:
|
|
command = [qemu_img_path, "create", "-o", "backing_file={}".format(disk_image), "-f", "qcow2", disk]
|
|
retcode = yield from self._qemu_img_exec(command)
|
|
if retcode:
|
|
stdout = self.read_qemu_img_stdout()
|
|
raise QemuError("Could not create '{}' disk image: qemu-img returned with {}\n{}".format(disk_name,
|
|
retcode,
|
|
stdout))
|
|
except (OSError, subprocess.SubprocessError) as e:
|
|
stdout = self.read_qemu_img_stdout()
|
|
raise QemuError("Could not create '{}' disk image: {}\n{}".format(disk_name, e, stdout))
|
|
else:
|
|
# The disk exists we check if the clone works
|
|
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)
|
|
|
|
# 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]
|
|
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 []
|
|
if "-nographic" not in self._options:
|
|
return ["-nographic"]
|
|
return []
|
|
|
|
@asyncio.coroutine
|
|
def _run_with_hardware_acceleration(self, qemu_path, options):
|
|
"""
|
|
Check if we can run Qemu with hardware acceleration
|
|
|
|
:param qemu_path: Path to qemu
|
|
:param options: String of qemu user options
|
|
:returns: Boolean True if we need to enable hardware acceleration
|
|
"""
|
|
|
|
enable_hardware_accel = self.manager.config.get_section_config("Qemu").getboolean("enable_hardware_acceleration", True)
|
|
require_hardware_accel = self.manager.config.get_section_config("Qemu").getboolean("require_hardware_acceleration", True)
|
|
if sys.platform.startswith("linux"):
|
|
# compatibility: these options were used before version 2.0 and have priority
|
|
enable_kvm = self.manager.config.get_section_config("Qemu").getboolean("enable_kvm")
|
|
if enable_kvm is not None:
|
|
enable_hardware_accel = enable_kvm
|
|
require_kvm = self.manager.config.get_section_config("Qemu").getboolean("require_kvm")
|
|
if require_kvm is not None:
|
|
require_hardware_accel = require_kvm
|
|
|
|
if enable_hardware_accel and "-no-kvm" not in options and "-no-hax" not in options:
|
|
# Turn OFF hardware acceleration for non x86 architectures
|
|
if sys.platform.startswith("win"):
|
|
supported_binaries = ["qemu-system-x86_64.exe", "qemu-system-x86_64w.exe", "qemu-system-i386.exe", "qemu-system-i386w.exe"]
|
|
else:
|
|
supported_binaries = ["qemu-system-x86_64", "qemu-system-i386", "qemu-kvm"]
|
|
if os.path.basename(qemu_path) not in supported_binaries:
|
|
if require_hardware_accel:
|
|
raise QemuError("Hardware acceleration can only be used with the following Qemu executables: {}".format(", ".join(supported_binaries)))
|
|
else:
|
|
return False
|
|
|
|
if sys.platform.startswith("linux") and not os.path.exists("/dev/kvm"):
|
|
if require_hardware_accel:
|
|
raise QemuError("KVM acceleration cannot be used (/dev/kvm doesn't exist). It is possible to turn off KVM support in the gns3_server.conf by adding enable_kvm = false to the [Qemu] section.")
|
|
else:
|
|
return False
|
|
elif sys.platform.startswith("win"):
|
|
if require_hardware_accel:
|
|
# HAXM is only available starting with Qemu version 2.9.0
|
|
version = yield from self.manager.get_qemu_version(self.qemu_path)
|
|
if version and parse_version(version) < parse_version("2.9.0"):
|
|
raise QemuError("HAXM acceleration can only be enable for Qemu version 2.9.0 and above (current version: {})".format(version))
|
|
|
|
# check if HAXM is installed
|
|
version = self.manager.get_haxm_windows_version()
|
|
if version is None:
|
|
raise QemuError("HAXM acceleration support is not installed on this host")
|
|
log.info("HAXM support version {} detected".format(version))
|
|
else:
|
|
return False
|
|
elif sys.platform.startswith("darwin"):
|
|
process = yield from asyncio.create_subprocess_shell("kextstat | grep com.intel.kext.intelhaxm")
|
|
yield from process.wait()
|
|
if process.returncode != 0:
|
|
if require_hardware_accel:
|
|
raise QemuError("HAXM acceleration support is not installed on this host (com.intel.kext.intelhaxm extension not loaded)")
|
|
else:
|
|
return False
|
|
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()
|
|
additional_options = additional_options.replace("%vm-name%", '"' + self._name.replace('"', '\\"') + '"')
|
|
additional_options = additional_options.replace("%vm-id%", self._id)
|
|
additional_options = additional_options.replace("%project-id%", self.project.id)
|
|
additional_options = additional_options.replace("%project-path%", '"' + self.project.path.replace('"', '\\"') + '"')
|
|
command = [self.qemu_path]
|
|
command.extend(["-name", self._name])
|
|
command.extend(["-m", "{}M".format(self._ram)])
|
|
command.extend(["-smp", "cpus={}".format(self._cpus)])
|
|
if (yield from self._run_with_hardware_acceleration(self.qemu_path, self._options)):
|
|
if sys.platform.startswith("linux"):
|
|
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"])
|
|
elif sys.platform.startswith("win") or sys.platform.startswith("darwin"):
|
|
command.extend(["-enable-hax"])
|
|
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())
|
|
elif self._console_type == "spice":
|
|
command.extend(self._spice_options())
|
|
elif self._console_type != "none":
|
|
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_path
|
|
}
|
|
# 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
|