Ubuntu Manpage: restorecon - restore file(s) default SELinux security contexts.

Provided by: policycoreutils_3.5-2_amd64

NAME

       restorecon - restore file(s) default SELinux security contexts.

SYNOPSIS

       restorecon  [-r|-R]  [-m]  [-n]  [-p]  [-v]  [-i]  [-F]  [-W]  [-I|-D] [-x] [-e directory]
       pathname ...

       restorecon [-f infilename] [-e directory] [-r|-R] [-m]  [-n]  [-p]  [-v]  [-i]  [-F]  [-W]
       [-I|-D] [-x] [-T nthreads]

DESCRIPTION

       This manual page describes the restorecon program.

       This program is primarily used to set the security context (extended attributes) on one or
       more files.

       It can also be run at any other time to correct inconsistent labels, to  add  support  for
       newly-installed  policy  or,  by  using the -n option, to passively check whether the file
       contexts are all set as specified by the active policy (default behavior).

       If a file object does not have a context, restorecon will write the default context to the
       file  object's  extended  attributes. If a file object has a context, restorecon will only
       modify the type portion of the security context.  The -F option will force  a  replacement
       of the entire context.

       If  a  file  is labeled with customizable SELinux type (for list of customizable types see
       /etc/selinux/{SELINUXTYPE}/contexts/customizable_types), restorecon won't reset the  label
       unless the -F option is used.

       It  is  the  same  executable  as  setfiles  but  operates  in a slightly different manner
       depending on its argv[0].

OPTIONS

-e directory
exclude a directory (repeat the option to exclude more than one directory, Requires
full path).

-f infilename
infilename contains a list of files to be processed. Use “-” for stdin.

-F Force reset of context to match file_context for customizable files, and the
default file context, changing the user, role, range portion as well as the type.

-h, -? display usage information and exit.

-i ignore files that do not exist.

-I ignore digest to force checking of labels even if the stored SHA1 digest matches
the specfiles SHA1 digest. The digest will then be updated provided there are no
errors. See the NOTES section for further details.

-D Set or update any directory SHA1 digests. Use this option to enable usage of the
security.sehash extended attribute.

-m do not read /proc/mounts to obtain a list of non-seclabel mounts to be excluded
from relabeling checks. Setting this option is useful where there is a non-
seclabel fs mounted with a seclabel fs mounted on a directory below this.

-n don't change any file labels (passive check). To display the files whose labels
would be changed, add -v.

-o outfilename
Deprecated - This option is no longer supported.

-p show progress by printing the number of files in 1k blocks unless relabeling the
entire OS, that will then show the approximate percentage complete. Note that the
-p and -v options are mutually exclusive.

-R, -r change files and directories file labels recursively (descend directories).

-v show changes in file labels. Multiple -v options increase the verbosity. Note that
the -v and -p options are mutually exclusive.

-W display warnings about entries that had no matching files by outputting the
selabel_stats(3) results.

-0 the separator for the input items is assumed to be the null character (instead of
the white space). The quotes and the backslash characters are also treated as
normal characters that can form valid input. This option finally also disables the
end of file string, which is treated like any other argument. Useful when input
items might contain white space, quote marks or backslashes. The -print0 option of
GNU find produces input suitable for this mode.

-x prevent restorecon from crossing file system boundaries.

-T nthreads
use up to nthreads threads. Specify 0 to create as many threads as there are
available CPU cores; 1 to use only a single thread (default); or any positive
number to use the given number of threads (if possible).

ARGUMENTS
pathname ... The pathname for the file(s) to be relabeled.

NOTES

       1.  restorecon  by  default  does not operate recursively on directories. Paths leading up
           the final  component  of  the  file(s)  are  canonicalized  using  realpath(3)  before
           labeling.

       2.  If  the  pathname  specifies the root directory and the -vR or -vr options are set and
           the audit system is running, then an audit event is automatically logged stating  that
           a "mass relabel" took place using the message label FS_RELABEL.

       3.  To  improve  performance  when  relabeling file systems recursively (i.e. the -R or -r
           option is set), the -D option to restorecon will cause it to store a  SHA1  digest  of
           the  default  specfiles  set  in  an  extended attribute named security.sehash on each
           directory  specified  in  pathname ...   once  the  relabeling  has   been   completed
           successfully.  These  digests  will  be checked should restorecon -D be rerun with the
           same pathname parameters. See selinux_restorecon(3) for further details.

           The  -I  option  will  ignore  the  SHA1  digest  from  each  directory  specified  in
           pathname ...   and  provided the -n option is NOT set and recursive mode is set, files
           will be relabeled as required with the digests then being updated provided  there  are
           no errors.

AUTHOR