/usr/share/pyshared/virtinst/User.py is in virtinst 0.600.1-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright 2008 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301 USA.
import platform
import os
import _util
class User(object):
"""Defines a particular user account."""
PRIV_CLONE = 1
PRIV_NFS_MOUNT = 2
PRIV_QEMU_SYSTEM = 3
PRIV_CREATE_DOMAIN = 4
PRIV_CREATE_NETWORK = 5
_privs = [ PRIV_CLONE, PRIV_NFS_MOUNT, PRIV_QEMU_SYSTEM,
PRIV_CREATE_DOMAIN, PRIV_CREATE_NETWORK ]
def __init__(self, euid):
self._euid = euid
def get_euid(self):
return self._euid
euid = property(get_euid)
def has_priv(self, priv, conn=None):
"""Return if the given user is privileged enough to perform the
given operation. This isn't entirely accurate currently,
especially on Solaris."""
if priv not in self._privs:
raise ValueError('unknown privilege %s' % priv)
if priv == self.PRIV_QEMU_SYSTEM:
return self._euid == 0
if priv == self.PRIV_CREATE_NETWORK:
return (self._euid == 0) or _util.is_qemu_system(conn)
if platform.system() == 'SunOS':
return self._sun_has_priv(priv)
# For all others, just assume that prescence of a connection
# means we are privileged enough
return True
def _sun_has_priv(self, priv):
# Not easy to work out!
if self._euid != User.current().euid:
return self._euid == 0
import ucred
cred = ucred.get(os.getpid())
if priv in [ self.PRIV_CLONE,
self.PRIV_CREATE_DOMAIN,
self.PRIV_CREATE_NETWORK ]:
return cred.has_priv('Effective', 'virt_manage')
if priv == self.PRIV_NFS_MOUNT:
return (cred.has_priv('Effective', 'sys_mount') and
cred.has_priv('Effective', 'net_privaddr'))
def current():
"""Return the current user."""
return User(os.geteuid())
current = staticmethod(current)
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