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cd1f9abc4a88725a7a889c80ecaa2a64804816c4
xen/tools/python/xen/xm/create.py
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Keir Fraser cd1f9abc4a Allow xm to spawn vnc viewer 
The new merged qemu no longer has the ability to spawn a vnc viewer
process in the bowels of the xend/qemu stack.  In this patch we
provide support for this use case in a different manner - one more
akin to the mechanism used for `xm console' and `xm create -c'.

We introduce new xm options:
   xm create --vncviewer [--vncviewer-autopass]
   xm vncviewer [--vncviewer-autopass]

These spawn a VNC viewer, obtaining the relevant information
(including the port number and if you tell it your viewer supports it
the password to use) directly from xenstore.

Like xm console it waits in the foreground for the vnc port to become
available; the timeout case isn't handled as well as it might be - it
just causes the whole program (xm) to die with `Alarm clock' but this
is difficult to deal with given the current structure of the xs Python
lowlevel interface, which doesn't provide a timeout on the call to
wait for a xenstore watch.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
2008-07-30 16:22:45 +01:00

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#============================================================================
# This library is free software; you can redistribute it and/or
# modify it under the terms of version 2.1 of the GNU Lesser General Public
# License as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#============================================================================
# Copyright (C) 2004, 2005 Mike Wray <mike.wray@hp.com>
# Copyright (C) 2005 Nguyen Anh Quynh <aquynh@gmail.com>
# Copyright (C) 2005-2006 XenSource Ltd
#============================================================================
"""Domain creation.
"""
import os
import os.path
import sys
import socket
import re
import time
import xmlrpclib
from xen.xend import sxp
from xen.xend import PrettyPrint as SXPPrettyPrint
from xen.xend import osdep
import xen.xend.XendClient
from xen.xend.XendBootloader import bootloader
from xen.util import blkif
from xen.util import vscsi_util
import xen.util.xsm.xsm as security
from xen.xm.main import serverType, SERVER_XEN_API, get_single_vm
from xen.util import utils
from xen.xm.opts import *
from main import server
from main import domain_name_to_domid
import console
gopts = Opts(use="""[options] [vars]
Create a domain.
Domain creation parameters can be set by command-line switches, from
a python configuration script or an SXP config file. See documentation
for --defconfig, --config. Configuration variables can be set using
VAR=VAL on the command line. For example vmid=3 sets vmid to 3.
""")
gopts.opt('help', short='h',
fn=set_true, default=0,
use="Print this help.")
gopts.opt('help_config',
fn=set_true, default=0,
use="Print the available configuration variables (vars) for the "
"configuration script.")
gopts.opt('quiet', short='q',
fn=set_true, default=0,
use="Quiet.")
gopts.opt('path', val='PATH',
fn=set_value, default='.:/etc/xen',
use="Search path for configuration scripts. "
"The value of PATH is a colon-separated directory list.")
gopts.opt('defconfig', short='f', val='FILE',
fn=set_value, default='xmdefconfig',
use="Use the given Python configuration script."
"The configuration script is loaded after arguments have been "
"processed. Each command-line option sets a configuration "
"variable named after its long option name, and these "
"variables are placed in the environment of the script before "
"it is loaded. Variables for options that may be repeated have "
"list values. Other variables can be set using VAR=VAL on the "
"command line. "
"After the script is loaded, option values that were not set "
"on the command line are replaced by the values set in the script.")
gopts.default('defconfig')
gopts.opt('config', short='F', val='FILE',
fn=set_value, default=None,
use="Domain configuration to use (SXP).\n"
"SXP is the underlying configuration format used by Xen.\n"
"SXP configurations can be hand-written or generated from Python "
"configuration scripts, using the -n (dryrun) option to print "
"the configuration.")
gopts.opt('dryrun', short='n',
fn=set_true, default=0,
use="Dry run - prints the resulting configuration in SXP but "
"does not create the domain.")
gopts.opt('xmldryrun', short='x',
fn=set_true, default=0,
use="XML dry run - prints the resulting configuration in XML but "
"does not create the domain.")
gopts.opt('skipdtd', short='s',
fn=set_true, default=0,
use="Skip DTD checking - skips checks on XML before creating. "
" Experimental. Can decrease create time." )
gopts.opt('paused', short='p',
fn=set_true, default=0,
use='Leave the domain paused after it is created.')
gopts.opt('console_autoconnect', short='c',
fn=set_true, default=0,
use="Connect to the console after the domain is created.")
gopts.opt('vncviewer',
fn=set_true, default=0,
use="Connect to the VNC display after the domain is created.")
gopts.opt('vncviewer-autopass',
fn=set_true, default=0,
use="Pass VNC password to viewer via stdin and -autopass.")
gopts.var('vncpasswd', val='NAME',
fn=set_value, default=None,
use="Password for VNC console on HVM domain.")
gopts.var('vncviewer', val='no|yes',
fn=set_bool, default=None,
use="Spawn a vncviewer listening for a vnc server in the domain.\n"
"The address of the vncviewer is passed to the domain on the "
"kernel command line using 'VNC_SERVER=<host>:<port>'. The port "
"used by vnc is 5500 + DISPLAY. A display value with a free port "
"is chosen if possible.\nOnly valid when vnc=1.\nDEPRECATED")
gopts.var('vncconsole', val='no|yes',
fn=set_bool, default=None,
use="Spawn a vncviewer process for the domain's graphical console.\n"
"Only valid when vnc=1.")
gopts.var('name', val='NAME',
fn=set_value, default=None,
use="Domain name. Must be unique.")
gopts.var('bootloader', val='FILE',
fn=set_value, default=None,
use="Path to bootloader.")
gopts.var('bootargs', val='NAME',
fn=set_value, default=None,
use="Arguments to pass to boot loader")
gopts.var('bootentry', val='NAME',
fn=set_value, default=None,
use="DEPRECATED. Entry to boot via boot loader. Use bootargs.")
gopts.var('kernel', val='FILE',
fn=set_value, default=None,
use="Path to kernel image.")
gopts.var('ramdisk', val='FILE',
fn=set_value, default='',
use="Path to ramdisk.")
gopts.var('loader', val='FILE',
fn=set_value, default='',
use="Path to HVM firmware.")
gopts.var('features', val='FEATURES',
fn=set_value, default='',
use="Features to enable in guest kernel")
gopts.var('builder', val='FUNCTION',
fn=set_value, default='linux',
use="Function to use to build the domain.")
gopts.var('memory', val='MEMORY',
fn=set_int, default=128,
use="Domain memory in MB.")
gopts.var('maxmem', val='MEMORY',
fn=set_int, default=None,
use="Maximum domain memory in MB.")
gopts.var('shadow_memory', val='MEMORY',
fn=set_int, default=0,
use="Domain shadow memory in MB.")
gopts.var('cpu', val='CPU',
fn=set_int, default=None,
use="CPU to run the VCPU0 on.")
gopts.var('cpus', val='CPUS',
fn=set_value, default=None,
use="CPUS to run the domain on.")
gopts.var('rtc_timeoffset', val='RTC_TIMEOFFSET',
fn=set_value, default="0",
use="Set RTC offset.")
gopts.var('pae', val='PAE',
fn=set_int, default=1,
use="Disable or enable PAE of HVM domain.")
gopts.var('hpet', val='HPET',
fn=set_int, default=0,
use="Enable virtual high-precision event timer.")
gopts.var('timer_mode', val='TIMER_MODE',
fn=set_int, default=0,
use="""Timer mode (0=delay virtual time when ticks are missed;
1=virtual time is always wallclock time.""")
gopts.var('acpi', val='ACPI',
fn=set_int, default=1,
use="Disable or enable ACPI of HVM domain.")
gopts.var('apic', val='APIC',
fn=set_int, default=1,
use="Disable or enable APIC mode.")
gopts.var('vcpus', val='VCPUS',
fn=set_int, default=1,
use="# of Virtual CPUS in domain.")
gopts.var('vcpu_avail', val='VCPUS',
fn=set_long, default=None,
use="Bitmask for virtual CPUs to make available immediately.")
gopts.var('vhpt', val='VHPT',
fn=set_int, default=0,
use="Log2 of domain VHPT size for IA64.")
gopts.var('cpu_cap', val='CAP',
fn=set_int, default=None,
use="""Set the maximum amount of cpu.
CAP is a percentage that fixes the maximum amount of cpu.""")
gopts.var('cpu_weight', val='WEIGHT',
fn=set_int, default=None,
use="""Set the cpu time ratio to be allocated to the domain.""")
gopts.var('restart', val='onreboot|always|never',
fn=set_value, default=None,
use="""Deprecated. Use on_poweroff, on_reboot, and on_crash
instead.
Whether the domain should be restarted on exit.
- onreboot: restart on exit with shutdown code reboot
- always: always restart on exit, ignore exit code
- never: never restart on exit, ignore exit code""")
gopts.var('on_poweroff', val='destroy|restart|preserve|rename-restart',
fn=set_value, default=None,
use="""Behaviour when a domain exits with reason 'poweroff'.
- destroy: the domain is cleaned up as normal;
- restart: a new domain is started in place of the old one;
- preserve: no clean-up is done until the domain is manually
destroyed (using xm destroy, for example);
- rename-restart: the old domain is not cleaned up, but is
renamed and a new domain started in its place.
""")
gopts.var('on_reboot', val='destroy|restart|preserve|rename-restart',
fn=set_value, default=None,
use="""Behaviour when a domain exits with reason 'reboot'.
- destroy: the domain is cleaned up as normal;
- restart: a new domain is started in place of the old one;
- preserve: no clean-up is done until the domain is manually
destroyed (using xm destroy, for example);
- rename-restart: the old domain is not cleaned up, but is
renamed and a new domain started in its place.
""")
gopts.var('on_crash', val='destroy|restart|preserve|rename-restart|coredump-destroy|ciredump-restart',
fn=set_value, default=None,
use="""Behaviour when a domain exits with reason 'crash'.
- destroy: the domain is cleaned up as normal;
- restart: a new domain is started in place of the old one;
- preserve: no clean-up is done until the domain is manually
destroyed (using xm destroy, for example);
- rename-restart: the old domain is not cleaned up, but is
renamed and a new domain started in its place.
- coredump-destroy: dump the domain's core, followed by destroy
- coredump-restart: dump the domain's core, followed by restart
""")
gopts.var('blkif', val='no|yes',
fn=set_bool, default=0,
use="Make the domain a block device backend.")
gopts.var('netif', val='no|yes',
fn=set_bool, default=0,
use="Make the domain a network interface backend.")
gopts.var('tpmif', val='no|yes',
fn=append_value, default=0,
use="Make the domain a TPM interface backend.")
gopts.var('disk', val='phy:DEV,VDEV,MODE[,DOM]',
fn=append_value, default=[],
use="""Add a disk device to a domain. The physical device is DEV,
which is exported to the domain as VDEV. The disk is read-only if MODE
is 'r', read-write if MODE is 'w'. If DOM is specified it defines the
backend driver domain to use for the disk.
The option may be repeated to add more than one disk.""")
gopts.var('pci', val='BUS:DEV.FUNC',
fn=append_value, default=[],
use="""Add a PCI device to a domain, using given params (in hex).
For example 'pci=c0:02.1'.
The option may be repeated to add more than one pci device.""")
gopts.var('vscsi', val='PDEV,VDEV[,DOM]',
fn=append_value, default=[],
use="""Add a SCSI device to a domain. The physical device is PDEV,
which is exported to the domain as VDEV(X:X:X:X).""")
gopts.var('ioports', val='FROM[-TO]',
fn=append_value, default=[],
use="""Add a legacy I/O range to a domain, using given params (in hex).
For example 'ioports=02f8-02ff'.
The option may be repeated to add more than one i/o range.""")
gopts.var('irq', val='IRQ',
fn=append_value, default=[],
use="""Add an IRQ (interrupt line) to a domain.
For example 'irq=7'.
This option may be repeated to add more than one IRQ.""")
gopts.var('vfb', val="type={vnc,sdl},vncunused=1,vncdisplay=N,vnclisten=ADDR,display=DISPLAY,xauthority=XAUTHORITY,vncpasswd=PASSWORD,opengl=1,keymap=FILE",
fn=append_value, default=[],
use="""Make the domain a framebuffer backend.
The backend type should be either sdl or vnc.
For type=vnc, connect an external vncviewer. The server will listen
on ADDR (default 127.0.0.1) on port N+5900. N defaults to the
domain id. If vncunused=1, the server will try to find an arbitrary
unused port above 5900. vncpasswd overrides the XenD configured
default password.
For type=sdl, a viewer will be started automatically using the
given DISPLAY and XAUTHORITY, which default to the current user's
ones. OpenGL will be used by default unless opengl is set to 0.
keymap overrides the XendD configured default layout file.""")
gopts.var('vif', val="type=TYPE,mac=MAC,bridge=BRIDGE,ip=IPADDR,script=SCRIPT," + \
"backend=DOM,vifname=NAME,rate=RATE,model=MODEL,accel=ACCEL",
fn=append_value, default=[],
use="""Add a network interface with the given MAC address and bridge.
The vif is configured by calling the given configuration script.
If type is not specified, default is netfront.
If mac is not specified a random MAC address is used.
If not specified then the network backend chooses it's own MAC address.
If bridge is not specified the first bridge found is used.
If script is not specified the default script is used.
If backend is not specified the default backend driver domain is used.
If vifname is not specified the backend virtual interface will have name vifD.N
where D is the domain id and N is the interface id.
If rate is not specified the default rate is used.
If model is not specified the default model is used.
If accel is not specified an accelerator plugin module is not used.
This option may be repeated to add more than one vif.
Specifying vifs will increase the number of interfaces as needed.""")
gopts.var('vtpm', val="instance=INSTANCE,backend=DOM,type=TYPE",
fn=append_value, default=[],
use="""Add a TPM interface. On the backend side use the given
instance as virtual TPM instance. The given number is merely the
preferred instance number. The hotplug script will determine
which instance number will actually be assigned to the domain.
The associtation between virtual machine and the TPM instance
number can be found in /etc/xen/vtpm.db. Use the backend in the
given domain.
The type parameter can be used to select a specific driver type
that the VM can use. To prevent a fully virtualized domain (HVM)
from being able to access an emulated device model, you may specify
'paravirtualized' here.""")
gopts.var('access_control', val="policy=POLICY,label=LABEL",
fn=append_value, default=[],
use="""Add a security label and the security policy reference that defines it.
The local ssid reference is calculated when starting/resuming the domain. At
this time, the policy is checked against the active policy as well. This way,
migrating through save/restore is covered and local labels are automatically
created correctly on the system where a domain is started / resumed.""")
gopts.var('nics', val="NUM",
fn=set_int, default=-1,
use="""DEPRECATED. Use empty vif entries instead.
Set the number of network interfaces.
Use the vif option to define interface parameters, otherwise
defaults are used. Specifying vifs will increase the
number of interfaces as needed.""")
gopts.var('root', val='DEVICE',
fn=set_value, default='',
use="""Set the root= parameter on the kernel command line.
Use a device, e.g. /dev/sda1, or /dev/nfs for NFS root.""")
gopts.var('extra', val="ARGS",
fn=set_value, default='',
use="Set extra arguments to append to the kernel command line.")
gopts.var('ip', val='IPADDR',
fn=set_value, default='',
use="Set the kernel IP interface address.")
gopts.var('gateway', val="IPADDR",
fn=set_value, default='',
use="Set the kernel IP gateway.")
gopts.var('netmask', val="MASK",
fn=set_value, default = '',
use="Set the kernel IP netmask.")
gopts.var('hostname', val="NAME",
fn=set_value, default='',
use="Set the kernel IP hostname.")
gopts.var('interface', val="INTF",
fn=set_value, default="eth0",
use="Set the kernel IP interface name.")
gopts.var('dhcp', val="off|dhcp",
fn=set_value, default='off',
use="Set the kernel dhcp option.")
gopts.var('nfs_server', val="IPADDR",
fn=set_value, default=None,
use="Set the address of the NFS server for NFS root.")
gopts.var('nfs_root', val="PATH",
fn=set_value, default=None,
use="Set the path of the root NFS directory.")
gopts.var('device_model', val='FILE',
fn=set_value, default=None,
use="Path to device model program.")
gopts.var('fda', val='FILE',
fn=set_value, default='',
use="Path to fda")
gopts.var('fdb', val='FILE',
fn=set_value, default='',
use="Path to fdb")
gopts.var('serial', val='FILE',
fn=set_value, default='',
use="Path to serial or pty or vc")
gopts.var('monitor', val='no|yes',
fn=set_bool, default=0,
use="""Should the device model use monitor?""")
gopts.var('localtime', val='no|yes',
fn=set_bool, default=0,
use="Is RTC set to localtime?")
gopts.var('keymap', val='FILE',
fn=set_value, default='',
use="Set keyboard layout used")
gopts.var('usb', val='no|yes',
fn=set_bool, default=0,
use="Emulate USB devices?")
gopts.var('usbdevice', val='NAME',
fn=set_value, default='',
use="Name of USB device to add?")
gopts.var('guest_os_type', val='NAME',
fn=set_value, default='default',
use="Guest OS type running in HVM")
gopts.var('stdvga', val='no|yes',
fn=set_bool, default=0,
use="Use std vga or cirrhus logic graphics")
gopts.var('isa', val='no|yes',
fn=set_bool, default=0,
use="Simulate an ISA only system?")
gopts.var('boot', val="a|b|c|d",
fn=set_value, default='c',
use="Default boot device")
gopts.var('nographic', val='no|yes',
fn=set_bool, default=0,
use="Should device models use graphics?")
gopts.var('soundhw', val='audiodev',
fn=set_value, default='',
use="Should device models enable audio device?")
gopts.var('vnc', val='',
fn=set_value, default=None,
use="""Should the device model use VNC?""")
gopts.var('vncdisplay', val='',
fn=set_value, default=None,
use="""VNC display to use""")
gopts.var('vnclisten', val='',
fn=set_value, default=None,
use="""Address for VNC server to listen on.""")
gopts.var('vncunused', val='',
fn=set_bool, default=1,
use="""Try to find an unused port for the VNC server.
Only valid when vnc=1.""")
gopts.var('videoram', val='',
fn=set_value, default=None,
use="""Maximum amount of videoram PV guest can allocate
for frame buffer.""")
gopts.var('sdl', val='',
fn=set_value, default=None,
use="""Should the device model use SDL?""")
gopts.var('opengl', val='',
fn=set_value, default=None,
use="""Enable\Disable OpenGL""")
gopts.var('display', val='DISPLAY',
fn=set_value, default=None,
use="X11 display to use")
gopts.var('xauthority', val='XAUTHORITY',
fn=set_value, default=None,
use="X11 Authority to use")
gopts.var('uuid', val='',
fn=set_value, default=None,
use="""xenstore UUID (universally unique identifier) to use. One
will be randomly generated if this option is not set, just like MAC
addresses for virtual network interfaces. This must be a unique
value across the entire cluster.""")
gopts.var('on_xend_start', val='ignore|start',
fn=set_value, default='ignore',
use='Action to perform when xend starts')
gopts.var('on_xend_stop', val='ignore|shutdown|suspend',
fn=set_value, default="ignore",
use="""Behaviour when Xend stops:
- ignore: Domain continues to run;
- shutdown: Domain is shutdown;
- suspend: Domain is suspended;
""")
gopts.var('target', val='TARGET',
fn=set_int, default=0,
use="Set domain target.")
gopts.var('hap', val='HAP',
fn=set_int, default=1,
use="""Hap status (0=hap is disabled;
1=hap is enabled.""")
gopts.var('cpuid', val="IN[,SIN]:eax=EAX,ebx=EBX,exc=ECX,edx=EDX",
fn=append_value, default=[],
use="""Cpuid description.""")
gopts.var('cpuid_check', val="IN[,SIN]:eax=EAX,ebx=EBX,exc=ECX,edx=EDX",
fn=append_value, default=[],
use="""Cpuid check description.""")
gopts.var('machine_address_size', val='BITS',
fn=set_int, default=None,
use="""Maximum machine address size""")
def err(msg):
"""Print an error to stderr and exit.
"""
print >>sys.stderr, "Error:", msg
sys.exit(1)
def warn(msg):
"""Print a warning to stdout.
"""
print >>sys.stderr, "Warning:", msg
def strip(pre, s):
"""Strip prefix 'pre' if present.
"""
if s.startswith(pre):
return s[len(pre):]
else:
return s
def configure_image(vals):
"""Create the image config.
"""
if not vals.builder:
return None
config_image = [ vals.builder ]
if vals.kernel:
config_image.append([ 'kernel', os.path.abspath(vals.kernel) ])
if vals.ramdisk:
config_image.append([ 'ramdisk', os.path.abspath(vals.ramdisk) ])
if vals.loader:
config_image.append([ 'loader', os.path.abspath(vals.loader) ])
if vals.cmdline_ip:
cmdline_ip = strip('ip=', vals.cmdline_ip)
config_image.append(['ip', cmdline_ip])
if vals.root:
cmdline_root = strip('root=', vals.root)
config_image.append(['root', cmdline_root])
if vals.extra:
config_image.append(['args', vals.extra])
if vals.builder == 'hvm':
configure_hvm(config_image, vals)
if vals.vhpt != 0:
config_image.append(['vhpt', vals.vhpt])
if vals.machine_address_size:
config_image.append(['machine_address_size', vals.machine_address_size])
return config_image
def configure_disks(config_devs, vals):
"""Create the config for disks (virtual block devices).
"""
for (uname, dev, mode, backend, protocol) in vals.disk:
if uname.startswith('tap:'):
cls = 'tap'
else:
cls = 'vbd'
config_vbd = [cls,
['uname', uname],
['dev', dev ],
['mode', mode ] ]
if backend:
config_vbd.append(['backend', backend])
if protocol:
config_vbd.append(['protocol', protocol])
config_devs.append(['device', config_vbd])
def configure_pci(config_devs, vals):
"""Create the config for pci devices.
"""
config_pci = []
for (domain, bus, slot, func) in vals.pci:
config_pci.append(['dev', ['domain', domain], ['bus', bus], \
['slot', slot], ['func', func]])
if len(config_pci)>0:
config_pci.insert(0, 'pci')
config_devs.append(['device', config_pci])
def vscsi_convert_sxp_to_dict(dev_sxp):
dev_dict = {}
for opt_val in dev_sxp[1:]:
try:
opt, val = opt_val
dev_dict[opt] = val
except TypeError:
pass
return dev_dict
def vscsi_lookup_devid(devlist, req_devid):
if len(devlist) == 0:
return 0
else:
for devid, backend in devlist:
if devid == req_devid:
return 1
return 0
def configure_vscsis(config_devs, vals):
"""Create the config for vscsis (virtual scsi devices).
"""
devidlist = []
config_scsi = []
if len(vals.vscsi) == 0:
return 0
scsi_devices = vscsi_util.vscsi_get_scsidevices()
for (p_dev, v_dev, backend) in vals.vscsi:
tmp = p_dev.split(':')
if len(tmp) == 4:
(p_hctl, block) = vscsi_util._vscsi_hctl_block(p_dev, scsi_devices)
else:
(p_hctl, block) = vscsi_util._vscsi_block_scsiid_to_hctl(p_dev, scsi_devices)
if p_hctl == None:
raise ValueError("Cannot find device \"%s\"" % p_dev)
for config in config_scsi:
dev = vscsi_convert_sxp_to_dict(config)
if dev['v-dev'] == v_dev:
raise ValueError('The virtual device "%s" is already defined' % v_dev)
v_hctl = v_dev.split(':')
devid = int(v_hctl[0])
config_scsi.append(['dev', \
['state', 'Initialising'], \
['devid', devid], \
['p-dev', p_hctl], \
['p-devname', block], \
['v-dev', v_dev] ])
if vscsi_lookup_devid(devidlist, devid) == 0:
devidlist.append([devid, backend])
for devid, backend in devidlist:
tmp = []
for config in config_scsi:
dev = vscsi_convert_sxp_to_dict(config)
if dev['devid'] == devid:
tmp.append(config)
tmp.insert(0, 'vscsi')
if backend:
tmp.append(['backend', backend])
config_devs.append(['device', tmp])
def configure_ioports(config_devs, vals):
"""Create the config for legacy i/o ranges.
"""
for (io_from, io_to) in vals.ioports:
config_ioports = ['ioports', ['from', io_from], ['to', io_to]]
config_devs.append(['device', config_ioports])
def configure_irq(config_devs, vals):
"""Create the config for irqs.
"""
for irq in vals.irq:
config_irq = ['irq', ['irq', irq]]
config_devs.append(['device', config_irq])
def configure_vfbs(config_devs, vals):
for f in vals.vfb:
d = comma_sep_kv_to_dict(f)
config = ['vfb']
if not d.has_key("type"):
d['type'] = 'sdl'
for (k,v) in d.iteritems():
if not k in [ 'vnclisten', 'vncunused', 'vncdisplay', 'display',
'videoram', 'xauthority', 'type', 'vncpasswd',
'opengl', 'keymap' ]:
err("configuration option %s unknown to vfbs" % k)
config.append([k,v])
if not d.has_key("keymap"):
if vals.keymap:
config.append(['keymap',vals.keymap])
if not d.has_key("display") and os.environ.has_key("DISPLAY"):
config.append(["display", os.environ['DISPLAY']])
if not d.has_key("xauthority"):
config.append(["xauthority", get_xauthority()])
config_devs.append(['device', ['vkbd']])
config_devs.append(['device', config])
def configure_security(config, vals):
"""Create the config for ACM security labels.
"""
access_control = vals.access_control
num = len(access_control)
if num == 1:
d = access_control[0]
policy = d.get('policy')
label = d.get('label')
if policy != security.active_policy:
err("Security policy (" + policy + ") incompatible with enforced policy ("
+ security.active_policy + ")." )
config_access_control = ['access_control',
['policy', policy],
['label', label] ]
security_label = ['security', [ config_access_control ] ]
config.append(security_label)
elif num > 1:
err("VM config error: Multiple access_control definitions!")
def configure_vtpm(config_devs, vals):
"""Create the config for virtual TPM interfaces.
"""
vtpm = vals.vtpm
if len(vtpm) > 0:
d = vtpm[0]
instance = d.get('instance')
if instance == "VTPMD":
instance = "0"
else:
if instance != None:
try:
if int(instance) == 0:
err('VM config error: vTPM instance must not be 0.')
except ValueError:
err('Vm config error: could not parse instance number.')
backend = d.get('backend')
typ = d.get('type')
config_vtpm = ['vtpm']
if instance:
config_vtpm.append(['pref_instance', instance])
if backend:
config_vtpm.append(['backend', backend])
if typ:
config_vtpm.append(['type', type])
config_devs.append(['device', config_vtpm])
def configure_vifs(config_devs, vals):
"""Create the config for virtual network interfaces.
"""
vifs = vals.vif
vifs_n = len(vifs)
if hasattr(vals, 'nics'):
if vals.nics > 0:
warn("The nics option is deprecated. Please use an empty vif "
"entry instead:\n\n vif = [ '' ]\n")
for _ in range(vifs_n, vals.nics):
vifs.append('')
vifs_n = len(vifs)
elif vals.nics == 0:
warn("The nics option is deprecated. Please remove it.")
for c in vifs:
d = comma_sep_kv_to_dict(c)
config_vif = ['vif']
def f(k):
if k not in ['backend', 'bridge', 'ip', 'mac', 'script', 'type',
'vifname', 'rate', 'model', 'accel',
'policy', 'label']:
err('Invalid vif option: ' + k)
config_vif.append([k, d[k]])
map(f, d.keys())
config_devs.append(['device', config_vif])
def configure_hvm(config_image, vals):
"""Create the config for HVM devices.
"""
args = [ 'device_model', 'pae', 'vcpus', 'boot', 'fda', 'fdb', 'timer_mode',
'localtime', 'serial', 'stdvga', 'isa', 'nographic', 'soundhw',
'vnc', 'vncdisplay', 'vncunused', 'vncconsole', 'vnclisten',
'sdl', 'display', 'xauthority', 'rtc_timeoffset', 'monitor',
'acpi', 'apic', 'usb', 'usbdevice', 'keymap', 'pci', 'hpet',
'guest_os_type', 'hap', 'opengl', 'cpuid', 'cpuid_check']
for a in args:
if a in vals.__dict__ and vals.__dict__[a] is not None:
config_image.append([a, vals.__dict__[a]])
if vals.vncpasswd is not None:
config_image.append(['vncpasswd', vals.vncpasswd])
def make_config(vals):
"""Create the domain configuration.
"""
config = ['vm']
def add_conf(n):
if hasattr(vals, n):
v = getattr(vals, n)
if v:
config.append([n, v])
map(add_conf, ['name', 'memory', 'maxmem', 'shadow_memory',
'restart', 'on_poweroff',
'on_reboot', 'on_crash', 'vcpus', 'vcpu_avail', 'features',
'on_xend_start', 'on_xend_stop', 'target', 'cpuid',
'cpuid_check', 'machine_address_size'])
if vals.uuid is not None:
config.append(['uuid', vals.uuid])
if vals.cpu is not None:
config.append(['cpu', vals.cpu])
if vals.cpus is not None:
config.append(['cpus', vals.cpus])
if vals.cpu_cap is not None:
config.append(['cpu_cap', vals.cpu_cap])
if vals.cpu_weight is not None:
config.append(['cpu_weight', vals.cpu_weight])
if vals.blkif:
config.append(['backend', ['blkif']])
if vals.netif:
config.append(['backend', ['netif']])
if vals.tpmif:
config.append(['backend', ['tpmif']])
if vals.localtime:
config.append(['localtime', vals.localtime])
config_image = configure_image(vals)
if vals.bootloader:
if vals.bootloader == "pygrub":
vals.bootloader = osdep.pygrub_path
config.append(['bootloader', vals.bootloader])
if vals.bootargs:
config.append(['bootloader_args', vals.bootargs])
else:
if vals.console_autoconnect:
config.append(['bootloader_args', ''])
else:
config.append(['bootloader_args', '-q'])
config.append(['image', config_image])
config_devs = []
configure_disks(config_devs, vals)
configure_pci(config_devs, vals)
configure_vscsis(config_devs, vals)
configure_ioports(config_devs, vals)
configure_irq(config_devs, vals)
configure_vifs(config_devs, vals)
configure_vtpm(config_devs, vals)
configure_vfbs(config_devs, vals)
configure_security(config, vals)
config += config_devs
return config
def preprocess_disk(vals):
if not vals.disk: return
disk = []
for v in vals.disk:
d = v.split(',')
n = len(d)
if n == 3:
d.append(None)
d.append(None)
elif n == 4:
d.append(None)
elif n == 5:
pass
else:
err('Invalid disk specifier: ' + v)
disk.append(d)
vals.disk = disk
def preprocess_cpuid(vals, attr_name):
if not vals.cpuid: return
cpuid = {}
for cpuid_input in getattr(vals, attr_name):
input_re = "(0x)?[0-9A-Fa-f]+(,(0x)?[0-9A-Fa-f]+)?"
cpuid_match = re.match(r'(?P<input>%s):(?P<regs>.*)' % \
input_re, cpuid_input)
if cpuid_match != None:
res_cpuid = cpuid_match.groupdict()
input = res_cpuid['input']
regs = res_cpuid['regs'].split(',')
cpuid[input]= {} # New input
for reg in regs:
reg_match = re.match(r"(?P<reg>eax|ebx|ecx|edx)=(?P<val>.*)", reg)
if reg_match == None:
err("cpuid's syntax is (eax|ebx|ecx|edx)=value")
res = reg_match.groupdict()
if (res['val'][:2] != '0x' and len(res['val']) != 32):
err("cpuid: We should specify all the bits " \
"of the register %s for input %s\n"
% (res['reg'], input) )
cpuid[input][res['reg']] = res['val'] # new register
setattr(vals, attr_name, cpuid)
def preprocess_pci(vals):
if not vals.pci: return
pci = []
for pci_dev_str in vals.pci:
pci_match = re.match(r"((?P<domain>[0-9a-fA-F]{1,4})[:,])?" + \
r"(?P<bus>[0-9a-fA-F]{1,2})[:,]" + \
r"(?P<slot>[0-9a-fA-F]{1,2})[.,]" + \
r"(?P<func>[0-7])$", pci_dev_str)
if pci_match!=None:
pci_dev_info = pci_match.groupdict('0')
try:
pci.append( ('0x'+pci_dev_info['domain'], \
'0x'+pci_dev_info['bus'], \
'0x'+pci_dev_info['slot'], \
'0x'+pci_dev_info['func']))
except IndexError:
err('Error in PCI slot syntax "%s"'%(pci_dev_str))
vals.pci = pci
def preprocess_vscsi(vals):
if not vals.vscsi: return
scsi = []
for scsi_str in vals.vscsi:
d = scsi_str.split(',')
n = len(d)
if n == 2:
tmp = d[1].split(':')
if len(tmp) != 4:
err('vscsi syntax error "%s"' % d[1])
else:
d.append(None)
elif n == 3:
pass
else:
err('vscsi syntax error "%s"' % scsi_str)
scsi.append(d)
vals.vscsi = scsi
def preprocess_ioports(vals):
if not vals.ioports: return
ioports = []
for v in vals.ioports:
d = v.split('-')
if len(d) < 1 or len(d) > 2:
err('Invalid i/o port range specifier: ' + v)
if len(d) == 1:
d.append(d[0])
# Components are in hex: add hex specifier.
hexd = ['0x' + x for x in d]
ioports.append(hexd)
vals.ioports = ioports
def preprocess_vtpm(vals):
if not vals.vtpm: return
vtpms = []
for vtpm in vals.vtpm:
d = {}
a = vtpm.split(',')
for b in a:
(k, v) = b.strip().split('=', 1)
k = k.strip()
v = v.strip()
if k not in ['backend', 'instance']:
err('Invalid vtpm specifier: ' + vtpm)
d[k] = v
vtpms.append(d)
vals.vtpm = vtpms
def preprocess_access_control(vals):
if not vals.access_control:
return
access_controls = []
num = len(vals.access_control)
if num == 1:
access_control = (vals.access_control)[0]
d = {}
a = access_control.split(',')
if len(a) > 2:
err('Too many elements in access_control specifier: ' + access_control)
for b in a:
(k, v) = b.strip().split('=', 1)
k = k.strip()
v = v.strip()
if k not in ['policy','label']:
err('Invalid access_control specifier: ' + access_control)
d[k] = v
access_controls.append(d)
vals.access_control = access_controls
elif num > 1:
err('Multiple access_control definitions.')
def preprocess_ip(vals):
if vals.ip or vals.dhcp != 'off':
dummy_nfs_server = '127.0.255.255'
ip = (vals.ip
+ ':' + (vals.nfs_server or dummy_nfs_server)
+ ':' + vals.gateway
+ ':' + vals.netmask
+ ':' + vals.hostname
+ ':' + vals.interface
+ ':' + vals.dhcp)
else:
ip = ''
vals.cmdline_ip = ip
def preprocess_nfs(vals):
if not vals.nfs_root: return
if not vals.nfs_server:
err('Must set nfs root and nfs server')
nfs = 'nfsroot=' + vals.nfs_server + ':' + vals.nfs_root
vals.extra = nfs + ' ' + vals.extra
def get_host_addr():
host = socket.gethostname()
addr = socket.gethostbyname(host)
return addr
VNC_BASE_PORT = 5500
def choose_vnc_display():
"""Try to choose a free vnc display.
"""
def netstat_local_ports():
"""Run netstat to get a list of the local ports in use.
"""
l = os.popen("netstat -nat").readlines()
r = []
# Skip 2 lines of header.
for x in l[2:]:
# Local port is field 3.
y = x.split()[3]
# Field is addr:port, split off the port.
y = y.split(':')[-1]
r.append(int(y))
return r
ports = netstat_local_ports()
for d in range(1, 100):
port = VNC_BASE_PORT + d
if port in ports: continue
return d
return None
vncpid = None
def spawn_vnc(display):
"""Spawns a vncviewer that listens on the specified display. On success,
returns the port that the vncviewer is listening on and sets the global
vncpid. On failure, returns 0. Note that vncviewer is daemonized.
"""
vncargs = (["vncviewer", "-log", "*:stdout:0",
"-listen", "%d" % (VNC_BASE_PORT + display) ])
global vncpid
vncpid = utils.daemonize("vncviewer", vncargs)
if vncpid == 0:
return 0
return VNC_BASE_PORT + display
def preprocess_vnc(vals):
"""If vnc was specified, spawn a vncviewer in listen mode
and pass its address to the domain on the kernel command line.
"""
if vals.dryrun: return
if vals.vncviewer:
vnc_display = choose_vnc_display()
if not vnc_display:
warn("No free vnc display")
return
print 'VNC=', vnc_display
vnc_port = spawn_vnc(vnc_display)
if vnc_port > 0:
vnc_host = get_host_addr()
vnc = 'VNC_VIEWER=%s:%d' % (vnc_host, vnc_port)
vals.extra = vnc + ' ' + vals.extra
def preprocess(vals):
preprocess_disk(vals)
preprocess_pci(vals)
preprocess_vscsi(vals)
preprocess_ioports(vals)
preprocess_ip(vals)
preprocess_nfs(vals)
preprocess_vnc(vals)
preprocess_vtpm(vals)
preprocess_access_control(vals)
preprocess_cpuid(vals, 'cpuid')
preprocess_cpuid(vals, 'cpuid_check')
def comma_sep_kv_to_dict(c):
"""Convert comma-separated, equals-separated key-value pairs into a
dictionary.
"""
d = {}
c = c.strip()
if len(c) > 0:
a = c.split(',')
for b in a:
if b.find('=') == -1:
err("%s should be a pair, separated by an equals sign." % b)
(k, v) = b.split('=', 1)
k = k.strip()
v = v.strip()
d[k] = v
return d
def make_domain(opts, config):
"""Create, build and start a domain.
@param opts: options
@param config: configuration
@return: domain id
@rtype: int
"""
try:
dominfo = server.xend.domain.create(config)
except xmlrpclib.Fault, ex:
import signal
if vncpid:
os.kill(vncpid, signal.SIGKILL)
if ex.faultCode == xen.xend.XendClient.ERROR_INVALID_DOMAIN:
err("the domain '%s' does not exist." % ex.faultString)
else:
err("%s" % ex.faultString)
except Exception, ex:
# main.py has good error messages that let the user know what failed.
# unless the error is a create.py specific thing, it should be handled
# at main. The purpose of this general-case 'Exception' handler is to
# clean up create.py specific processes/data but since create.py does
# not know what to do with the error, it should pass it up.
import signal
if vncpid:
os.kill(vncpid, signal.SIGKILL)
raise
dom = sxp.child_value(dominfo, 'name')
try:
server.xend.domain.waitForDevices(dom)
except xmlrpclib.Fault, ex:
server.xend.domain.destroy(dom)
err("%s" % ex.faultString)
except:
server.xend.domain.destroy(dom)
err("Device creation failed for domain %s" % dom)
if not opts.vals.paused:
try:
server.xend.domain.unpause(dom)
except:
server.xend.domain.destroy(dom)
err("Failed to unpause domain %s" % dom)
opts.info("Started domain %s" % (dom))
return int(sxp.child_value(dominfo, 'domid'))
def get_xauthority():
xauth = os.getenv("XAUTHORITY")
if not xauth:
home = os.getenv("HOME")
if not home:
import posix, pwd
home = pwd.getpwuid(posix.getuid())[5]
xauth = home + "/.Xauthority"
return xauth
def parseCommandLine(argv):
gopts.reset()
args = gopts.parse(argv)
if gopts.vals.help or gopts.vals.help_config:
if gopts.vals.help_config:
print gopts.val_usage()
return (None, None)
if not gopts.vals.display:
gopts.vals.display = os.getenv("DISPLAY")
if not gopts.vals.xauthority:
gopts.vals.xauthority = get_xauthority()
gopts.is_xml = False
# Process remaining args as config variables.
for arg in args:
if '=' in arg:
(var, val) = arg.strip().split('=', 1)
gopts.setvar(var.strip(), val.strip())
if gopts.vals.config:
config = gopts.vals.config
else:
try:
gopts.load_defconfig()
preprocess(gopts.vals)
if not gopts.getopt('name') and gopts.getopt('defconfig'):
gopts.setopt('name', os.path.basename(gopts.getopt('defconfig')))
config = make_config(gopts.vals)
except XMLFileError, ex:
XMLFile = ex.getFile()
gopts.is_xml = True
config = ex.getFile()
return (gopts, config)
def help():
return str(gopts)
def main(argv):
is_xml = False
try:
(opts, config) = parseCommandLine(argv)
except StandardError, ex:
err(str(ex))
if not opts:
return
if not opts.is_xml:
if type(config) == str:
try:
config = sxp.parse(file(config))[0]
except IOError, exn:
raise OptionError("Cannot read file %s: %s" % (config, exn[1]))
if serverType == SERVER_XEN_API:
from xen.xm.xenapi_create import sxp2xml
sxp2xml_inst = sxp2xml()
doc = sxp2xml_inst.convert_sxp_to_xml(config, transient=True)
if opts.vals.dryrun and not opts.is_xml:
SXPPrettyPrint.prettyprint(config)
if opts.vals.xmldryrun and serverType == SERVER_XEN_API:
from xml.dom.ext import PrettyPrint as XMLPrettyPrint
XMLPrettyPrint(doc)
if opts.vals.dryrun or opts.vals.xmldryrun:
return
if opts.vals.console_autoconnect:
do_console(sxp.child_value(config, 'name', -1))
if serverType == SERVER_XEN_API:
from xen.xm.xenapi_create import xenapi_create
xenapi_create_inst = xenapi_create()
if opts.is_xml:
vm_refs = xenapi_create_inst.create(filename = config,
skipdtd = opts.vals.skipdtd)
else:
vm_refs = xenapi_create_inst.create(document = doc,
skipdtd = opts.vals.skipdtd)
map(lambda vm_ref: server.xenapi.VM.start(vm_ref, 0), vm_refs)
elif not opts.is_xml:
dom = make_domain(opts, config)
if opts.vals.vncviewer:
domid = domain_name_to_domid(sxp.child_value(config, 'name', -1))
vncviewer_autopass = getattr(opts.vals,'vncviewer-autopass', False)
console.runVncViewer(domid, vncviewer_autopass, True)
def do_console(domain_name):
cpid = os.fork()
if cpid != 0:
for i in range(10):
# Catch failure of the create process
time.sleep(1)
(p, rv) = os.waitpid(cpid, os.WNOHANG)
if os.WIFEXITED(rv):
if os.WEXITSTATUS(rv) != 0:
sys.exit(os.WEXITSTATUS(rv))
try:
domid = domain_name_to_domid(domain_name)
console.execConsole(domid)
except:
pass
print("Could not start console\n");
sys.exit(0)
if __name__ == '__main__':
main(sys.argv)
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