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#
# Authors: Dan Walsh <dwalsh@redhat.com>
#
# Copyright (C) 2007-2013 Red Hat, Inc.
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
import gettext
translation=gettext.translation('setroubleshoot-plugins', fallback=True)
_=translation.gettext
from setroubleshoot.util import *
from setroubleshoot.Plugin import Plugin
import os
from stat import *
import selinux
customizable_types = None
def customizable(target):
global customizable_types
if not customizable_types:
fd = open(selinux.selinux_customizable_types_path())
customizable_types = fd.read().split("\n")
fd.close()
return target in customizable_types
# List of path prefixes for which this plugin is not executed
excluded_paths = ["/sys/", "/proc/", "/memfd:"]
# Test if the specified path starts with some excluded prefix
def excluded_path(target_path):
for path in excluded_paths:
if target_path.startswith(path): return True
return False
import selinux
class plugin(Plugin):
summary = _('''
SELinux is preventing $SOURCE_PATH "$ACCESS" access to $TARGET_PATH.
''')
fix_cmd = "/sbin/restorecon $TARGET_PATH"
fix_description = _('''
You can restore the default system context to this file by executing the
restorecon command. restorecon '$TARGET_PATH', if this file is a directory,
you can recursively restore using restorecon -R '$TARGET_PATH'.
''')
def get_problem_description(self, avc, args):
return _('''
SELinux denied access requested by $SOURCE. $TARGET_PATH may
be mislabeled. $TARGET_PATH default SELinux type is
<B>%s</B>, but its current type is <B>$TARGET_TYPE</B>. Changing
this file back to the default type may fix your problem.
<p>
File contexts can be assigned to a file in the following ways.
<ul>
<li>Files created in a directory receive the file context of the parent directory by default.
<li>The SELinux policy might override the default label inherited from the parent directory by
specifying a process running in context A which creates a file in a directory labeled B
will instead create the file with label C. An example of this would be the dhcp client running
with the dhcpc_t type and creating a file in the directory /etc. This file would normally
receive the etc_t type due to parental inheritance but instead the file
is labeled with the net_conf_t type because the SELinux policy specifies this.
<li>Users can change the file context on a file using tools such as chcon, or restorecon.
</ul>
This file could have been mislabeled either by user error, or if an normally confined application
was run under the wrong domain.
<p>
However, this might also indicate a bug in SELinux because the file should not have been labeled
with this type.
<p>
If you believe this is a bug, please file a bug report against this package.
''') % args[1]
if_text = _("If you want to fix the label. \n$TARGET_PATH default label should be %s.")
def get_if_text(self, avc, args):
return self.if_text % args[1]
then_text = _('you can run restorecon. The access attempt may have been stopped due to insufficient' \
+ ' permissions to access a parent directory in which case try to change the following command accordingly.')
do_text = '# /sbin/restorecon -v $TARGET_PATH'
def __init__(self):
Plugin.__init__(self, __name__)
self.set_priority(100)
self.level = "green"
self.fixable = True
self.button_text=_("Restore\nContext")
def analyze(self, avc):
if not avc.query_environment: return None
if avc.tcontext.type in [ "cifs_t", "nfs_t" ]: return None
if avc.tcontext.type not in file_types: return None
if avc.all_accesses_are_in("relabelto"): return None
restorecon_files = {}
restorecon_files['dir'] = S_IFDIR
restorecon_files['file'] = S_IFREG
restorecon_files['lnk_file'] = S_IFLNK
restorecon_files['chr_file'] = S_IFCHR
restorecon_files['blk_file'] = S_IFBLK
if avc.has_tclass_in(restorecon_files.keys()):
if avc.tpath is None: return None
if avc.tpath == "/": return None
if avc.tpath[0] != '/': return None
if excluded_path(avc.tpath): return None
if customizable(avc.tcontext.type):
return None
try:
mcon = selinux.matchpathcon(avc.tpath.strip('"'), restorecon_files[avc.tclass])[1]
mcon_type=mcon.split(":")[2]
if mcon_type != avc.tcontext.type:
return self.report((0, mcon_type))
except OSError as e:
pass
return None
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| __pycache__ | Folder | 0755 |
|
|
| __init__.py | File | 2 B | 0644 |
|
| allow_anon_write.py | File | 3.25 KB | 0644 |
|
| allow_execheap.py | File | 2.39 KB | 0644 |
|
| allow_execmem.py | File | 3.07 KB | 0644 |
|
| allow_execmod.py | File | 5.41 KB | 0644 |
|
| allow_execstack.py | File | 4.73 KB | 0644 |
|
| allow_ftpd_use_cifs.py | File | 3.41 KB | 0644 |
|
| allow_ftpd_use_nfs.py | File | 3.3 KB | 0644 |
|
| associate.py | File | 2.15 KB | 0644 |
|
| automount_exec_config.py | File | 2.66 KB | 0644 |
|
| bind_ports.py | File | 2.81 KB | 0644 |
|
| catchall.py | File | 2.89 KB | 0644 |
|
| catchall_boolean.py | File | 2.89 KB | 0644 |
|
| catchall_labels.py | File | 2.2 KB | 0644 |
|
| chrome.py | File | 2.6 KB | 0644 |
|
| connect_ports.py | File | 2.68 KB | 0644 |
|
| cvs_data.py | File | 2.58 KB | 0644 |
|
| dac_override.py | File | 2.1 KB | 0644 |
|
| device.py | File | 2.74 KB | 0644 |
|
| disable_ipv6.py | File | 1.62 KB | 0644 |
|
| file.py | File | 3.21 KB | 0644 |
|
| filesystem_associate.py | File | 2.46 KB | 0644 |
|
| httpd_can_sendmail.py | File | 1.93 KB | 0644 |
|
| httpd_unified.py | File | 2.86 KB | 0644 |
|
| httpd_write_content.py | File | 2.11 KB | 0644 |
|
| kernel_modules.py | File | 2.74 KB | 0644 |
|
| leaks.py | File | 2.49 KB | 0644 |
|
| mmap_zero.py | File | 2.33 KB | 0644 |
|
| mounton.py | File | 2.48 KB | 0644 |
|
| mozplugger.py | File | 2.79 KB | 0644 |
|
| mozplugger_remove.py | File | 2.17 KB | 0644 |
|
| openvpn.py | File | 2.76 KB | 0644 |
|
| public_content.py | File | 2.57 KB | 0644 |
|
| qemu_blk_image.py | File | 2.55 KB | 0644 |
|
| qemu_file_image.py | File | 2.88 KB | 0644 |
|
| restorecon.py | File | 5.34 KB | 0644 |
|
| restorecon_source.py | File | 3.01 KB | 0644 |
|
| rsync_data.py | File | 2.53 KB | 0644 |
|
| samba_share.py | File | 2.94 KB | 0644 |
|
| sandbox_connect.py | File | 2.23 KB | 0644 |
|
| selinuxpolicy.py | File | 3.09 KB | 0644 |
|
| setenforce.py | File | 2.39 KB | 0644 |
|
| sshd_root.py | File | 2.08 KB | 0644 |
|
| swapfile.py | File | 2.23 KB | 0644 |
|
| sys_module.py | File | 2.35 KB | 0644 |
|
| sys_resource.py | File | 2.62 KB | 0644 |
|
| vbetool.py | File | 2.52 KB | 0644 |
|
| wine.py | File | 2.92 KB | 0644 |
|
| xen_image.py | File | 2.8 KB | 0644 |
|