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# Copyright (C) 2013,2018 Red Hat, Inc., Bryn M. Reeves <bmr@redhat.com>
# This file is part of the sos project: https://github.com/sosreport/sos
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# version 2 of the GNU General Public License.
#
# See the LICENSE file in the source distribution for further information.
import re
import socket
from sos.report.plugins import Plugin, RedHatPlugin, DebianPlugin, UbuntuPlugin
class Krb5(Plugin):
"""This plugin handles the collection of kerberos authentication config
files and logging. Users should expect to see their krb5 config(s) in the
final archive, along with krb5 logging and `klist` output.
kdc configs and acls will also be collected from the distribution-spcecific
kdc directory.
"""
short_desc = 'Kerberos authentication'
plugin_name = 'krb5'
profiles = ('identity', 'system')
kdcdir = None
def setup(self):
self.add_copy_spec([
"/etc/krb5.conf",
"/etc/krb5.conf.d/*",
f"{self.kdcdir}/kadm5.acl",
f"{self.kdcdir}/kdc.conf",
"/var/log/kadmind.log"
])
self.collect_kinit()
self.add_copy_spec("/var/log/krb5kdc.log", tags="kerberos_kdc_log")
self.add_cmd_output(f"klist -ket {self.kdcdir}/.k5*")
self.add_cmd_output("klist -ket /etc/krb5.keytab")
def collect_kinit(self):
"""
Collect the kinit command output for the system with id_provider "AD"
or "IPA" domains.
While integrating the Linux M/c with AD the realmd will create a
computer object on the AD side. The realmd and AD restrict the
Hostname/SPN to 15 Characters.
"""
hostname = socket.getfqdn()
sssd_conf = "/etc/sssd/sssd.conf"
if self.path_isfile(sssd_conf):
with open(sssd_conf, 'r', encoding='utf-8') as f:
for line in f:
if re.match(r'\s*id_provider\s*=\s*ad',
line, re.IGNORECASE):
hostname = hostname.split('.')[0][:15].upper()
self.add_cmd_output(f"KRB5_TRACE=/dev/stdout \
kinit -k '{hostname}$'")
break
if re.match(r'\s*id_provider\s*=\s*ipa',
line, re.IGNORECASE):
self.add_cmd_output(f"KRB5_TRACE=/dev/stdout \
kinit -k '{hostname}'")
break
class RedHatKrb5(Krb5, RedHatPlugin):
packages = ('krb5-libs', 'krb5-server')
kdcdir = "/var/kerberos/krb5kdc"
class UbuntuKrb5(Krb5, DebianPlugin, UbuntuPlugin):
packages = ('krb5-kdc', 'krb5-config', 'krb5-user')
kdcdir = "/var/lib/krb5kdc"
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