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80fca8d701
Commit cfad7af35d added a check to ensure a
system has sufficient amount of memory. The feature uses psutil to get
available memory. On import psutil opens files in /proc which can result in
an SELinux violations and Python exception.
PermissionError: [Errno 13] Permission denied: '/proc/stat'
Fixes: https://pagure.io/freeipa/issue/8512
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
142 lines
4.3 KiB
Python
142 lines
4.3 KiB
Python
# Authors:
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# Rob Crittenden <rcritten@redhat.com>
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#
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# Copyright (C) 2009 Red Hat
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# see file 'COPYING' for use and warranty information
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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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import logging
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import six
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from ipalib import Registry, api
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from ipalib import Command, Str
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from ipalib import errors
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from ipalib import _
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from ipalib.constants import FQDN
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__doc__ = _("""
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Joining an IPA domain
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""")
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if six.PY3:
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unicode = str
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logger = logging.getLogger(__name__)
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register = Registry()
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def validate_host(ugettext, cn):
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"""
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Require at least one dot in the hostname (to support localhost.localdomain)
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"""
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dots = len(cn.split('.'))
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if dots < 2:
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return 'Fully-qualified hostname required'
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return None
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@register()
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class join(Command):
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__doc__ = _('Join an IPA domain')
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NO_CLI = True
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takes_args = (
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Str('cn',
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validate_host,
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cli_name='hostname',
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doc=_("The hostname to register as"),
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default_from=lambda: FQDN,
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autofill=True,
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#normalizer=lamda value: value.lower(),
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),
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)
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takes_options = (
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Str('realm',
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doc=_("The IPA realm"),
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default_from=lambda: api.env.realm,
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autofill=True,
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),
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Str('nshardwareplatform?',
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cli_name='platform',
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doc=_('Hardware platform of the host (e.g. Lenovo T61)'),
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),
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Str('nsosversion?',
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cli_name='os',
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doc=_('Operating System and version of the host (e.g. Fedora 9)'),
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),
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)
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has_output = tuple()
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use_output_validation = False
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def execute(self, hostname, **kw):
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"""
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Execute the machine join operation.
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Returns the entry as it will be created in LDAP.
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:param hostname: The name of the host joined
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:param kw: Keyword arguments for the other attributes.
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"""
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assert 'cn' not in kw
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ldap = self.api.Backend.ldap2
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# realm parameter is not supported by host_{add,mod}
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kw.pop('realm', None)
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try:
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# First see if the host exists
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show_kw = {'fqdn': hostname, 'all': True}
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attrs_list = api.Command['host_show'](**show_kw)['result']
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dn = attrs_list['dn']
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# No error raised so far means that host entry exists
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logger.info('Host entry for %s already exists, '
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'joining may fail on the client side '
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'if not forced', hostname)
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# If no principal name is set yet we need to try to add
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# one.
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if 'krbprincipalname' not in attrs_list:
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service = "host/%s@%s" % (hostname, api.env.realm)
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api.Command['host_mod'](hostname, **kw,
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krbprincipalname=service)
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logger.info('No principal set, setting to %s', service)
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# It exists, can we write the password attributes?
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allowed = ldap.can_write(dn, 'krblastpwdchange')
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if not allowed:
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raise errors.ACIError(info=_("Insufficient 'write' privilege "
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"to the 'krbLastPwdChange' attribute of entry '%s'.") % dn)
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# Reload the attrs_list and dn so that we return update values
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attrs_list = api.Command['host_show'](**show_kw)['result']
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dn = attrs_list['dn']
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except errors.NotFound:
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attrs_list = api.Command['host_add'](hostname, **kw,
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force=True)['result']
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dn = attrs_list['dn']
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config = api.Command['config_show']()['result']
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attrs_list['ipacertificatesubjectbase'] =\
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config['ipacertificatesubjectbase']
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return dn, attrs_list
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