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# Authors:
# Ade Lee <alee@redhat.com>
#
# 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; version 2 of the License.
#
# 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.
#
# Copyright (C) 2012 Red Hat, Inc.
# All rights reserved.
#
from __future__ import absolute_import
import selinux
import sys
import time
# PKI Deployment Imports
from .. import pkiconfig as config
from ..pkiconfig import pki_selinux_config_ports as ports
from .. import pkimessages as log
from .. import pkiscriptlet
seobject = None
if selinux.is_selinux_enabled():
try:
import seobject
except ImportError:
# TODO: Fedora 22 has an incomplete Python 3 package
# sepolgen is missing.
if sys.version_info.major == 2:
raise
# PKI Deployment Selinux Setup Scriptlet
class PkiScriptlet(pkiscriptlet.AbstractBasePkiScriptlet):
suffix = "(/.*)?"
def restore_context(self, mdict):
selinux.restorecon(mdict['pki_instance_path'], True)
selinux.restorecon(config.PKI_DEPLOYMENT_LOG_ROOT, True)
selinux.restorecon(mdict['pki_instance_log_path'], True)
selinux.restorecon(mdict['pki_instance_configuration_path'], True)
def spawn(self, deployer):
if config.str2bool(deployer.mdict['pki_skip_installation']):
config.pki_log.info(log.SKIP_SELINUX_SPAWN_1, __name__,
extra=config.PKI_INDENTATION_LEVEL_1)
return
if not selinux.is_selinux_enabled() or seobject is None:
config.pki_log.info(log.SELINUX_DISABLED_SPAWN_1, __name__,
extra=config.PKI_INDENTATION_LEVEL_1)
return
config.pki_log.info(log.SELINUX_SPAWN_1, __name__,
extra=config.PKI_INDENTATION_LEVEL_1)
# A maximum of 10 tries to create the SELinux contexts
counter = 0
max_tries = 10
while True:
try:
# check first if any transactions are required
if len(ports) == 0 and deployer.mdict['pki_instance_name'] == \
config.PKI_DEPLOYMENT_DEFAULT_TOMCAT_INSTANCE_NAME:
self.restore_context(deployer.mdict)
return
# add SELinux contexts when adding the first subsystem
if len(deployer.instance.tomcat_instance_subsystems()) == 1:
trans = seobject.semanageRecords("targeted")
trans.start()
if deployer.mdict['pki_instance_name'] != \
config.PKI_DEPLOYMENT_DEFAULT_TOMCAT_INSTANCE_NAME:
fcon = seobject.fcontextRecords()
config.pki_log.info(
"adding selinux fcontext \"%s\"",
deployer.mdict['pki_instance_path'] + self.suffix,
extra=config.PKI_INDENTATION_LEVEL_2)
fcon.add(
deployer.mdict['pki_instance_path'] + self.suffix,
config.PKI_INSTANCE_SELINUX_CONTEXT, "", "s0", "")
config.pki_log.info(
"adding selinux fcontext \"%s\"",
deployer.mdict['pki_instance_log_path'] +
self.suffix,
extra=config.PKI_INDENTATION_LEVEL_2)
fcon.add(
deployer.mdict['pki_instance_log_path'] +
self.suffix,
config.PKI_LOG_SELINUX_CONTEXT, "", "s0", "")
config.pki_log.info(
"adding selinux fcontext \"%s\"",
deployer.mdict['pki_instance_configuration_path'] +
self.suffix,
extra=config.PKI_INDENTATION_LEVEL_2)
fcon.add(
deployer.mdict['pki_instance_configuration_path'] +
self.suffix,
config.PKI_CFG_SELINUX_CONTEXT, "", "s0", "")
config.pki_log.info(
"adding selinux fcontext \"%s\"",
deployer.mdict['pki_database_path'] + self.suffix,
extra=config.PKI_INDENTATION_LEVEL_2)
fcon.add(
deployer.mdict['pki_database_path'] + self.suffix,
config.PKI_CERTDB_SELINUX_CONTEXT, "", "s0", "")
port_records = seobject.portRecords()
for port in ports:
config.pki_log.info(
"adding selinux port %s", port,
extra=config.PKI_INDENTATION_LEVEL_2)
port_records.add(
port, "tcp", "s0",
config.PKI_PORT_SELINUX_CONTEXT)
trans.finish()
self.restore_context(deployer.mdict)
break
except ValueError as e:
error_message = str(e)
config.pki_log.debug(error_message)
if error_message.strip() == \
"Could not start semanage transaction":
counter += 1
if counter >= max_tries:
raise
time.sleep(5)
config.pki_log.debug(
"Retrying to setup the selinux context ...")
else:
raise
def destroy(self, deployer):
if not bool(selinux.is_selinux_enabled()):
config.pki_log.info(log.SELINUX_DISABLED_DESTROY_1, __name__,
extra=config.PKI_INDENTATION_LEVEL_1)
return
config.pki_log.info(log.SELINUX_DESTROY_1, __name__,
extra=config.PKI_INDENTATION_LEVEL_1)
# check first if any transactions are required
if (len(ports) == 0 and deployer.mdict['pki_instance_name'] ==
config.PKI_DEPLOYMENT_DEFAULT_TOMCAT_INSTANCE_NAME):
return
# A maximum of 10 tries to delete the SELinux contexts
counter = 1
max_tries = 10
while True:
try:
# remove SELinux contexts when removing the last subsystem
if len(deployer.instance.tomcat_instance_subsystems()) == 0:
trans = seobject.semanageRecords("targeted")
trans.start()
if deployer.mdict['pki_instance_name'] != \
config.PKI_DEPLOYMENT_DEFAULT_TOMCAT_INSTANCE_NAME:
fcon = seobject.fcontextRecords()
config.pki_log.info(
"deleting selinux fcontext \"%s\"",
deployer.mdict['pki_instance_path'] + self.suffix,
extra=config.PKI_INDENTATION_LEVEL_2)
fcon.delete(
deployer.mdict['pki_instance_path'] +
self.suffix, "")
config.pki_log.info(
"deleting selinux fcontext \"%s\"",
deployer.mdict['pki_instance_log_path'] +
self.suffix,
extra=config.PKI_INDENTATION_LEVEL_2)
fcon.delete(
deployer.mdict['pki_instance_log_path'] +
self.suffix, "")
config.pki_log.info(
"deleting selinux fcontext \"%s\"",
deployer.mdict['pki_instance_configuration_path'] +
self.suffix,
extra=config.PKI_INDENTATION_LEVEL_2)
fcon.delete(
deployer.mdict['pki_instance_configuration_path'] +
self.suffix, "")
config.pki_log.info(
"deleting selinux fcontext \"%s\"",
deployer.mdict['pki_database_path'] + self.suffix,
extra=config.PKI_INDENTATION_LEVEL_2)
fcon.delete(
deployer.mdict['pki_database_path'] +
self.suffix, "")
port_records = seobject.portRecords()
for port in ports:
config.pki_log.info(
"deleting selinux port %s", port,
extra=config.PKI_INDENTATION_LEVEL_2)
port_records.delete(port, "tcp")
trans.finish()
break
except ValueError as e:
error_message = str(e)
config.pki_log.debug(error_message)
if error_message.strip() == \
"Could not start semanage transaction":
counter += 1
if counter >= max_tries:
raise
time.sleep(5)
config.pki_log.debug(
"Retrying to remove selinux context ...")
else:
raise
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