Ubuntu Manpage: setfiles - set SELinux file security contexts.

Provided by: policycoreutils_3.8.1-1_amd64

NAME

       setfiles - set SELinux file security contexts.

SYNOPSIS

       setfiles  [-c  policy]  [-C] [-d] [-l] [-m] [-n] [-e directory] [-E] [-p] [-s] [-v] [-W] [-F] [-I|-D] [-T
       nthreads] spec_file pathname ...

DESCRIPTION

       This manual page describes the setfiles program.

       This program is primarily used to initialize the security context fields (extended attributes) on one  or
       more  filesystems  (or  parts  of them).  Usually it is initially run as part of the SELinux installation
       process (a step commonly known as labeling).

       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) or by some other policy (see the -c option).

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

OPTIONS

-c check the validity of the contexts against the specified binary policy.

-C If only relabeling errors are encountered during the file tree walks, exit with status 1 rather
than 255.

-d show what specification matched each file.

-e directory
directory to exclude (repeat option for more than one directory).

-E treat conflicting specifications as errors, such as where two hardlinks for the same inode have
different contexts.

-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.

-l log changes in file labels to syslog.

-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).

-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.

-q Deprecated and replaced by -v. Has no effect on other options or on program behavior.

-r rootpath
use an alternate root path. Used in meta-selinux for OpenEmbedded/Yocto builds to label files
under rootpath as if they were at /

-s take a list of files from standard input instead of using a pathname from the command line
(equivalent to “-f -” ).

-v show changes in file labels and output any inode association parameters. 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.

-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

       spec_file
              The specification file which contains lines of the following form:

              regexp [type] context | <<none>>
                     The  regular  expression  is  anchored at both ends.  The optional type field specifies the
                     file type as shown in the mode field by the ls(1) program, e.g.  -- to match  only  regular
                     files  or -d to match only directories.  The context can be an ordinary security context or
                     the string <<none>> to specify that the file is not to have its context changed.
                     The last matching specification is used. If there are multiple hard links to  a  file  that
                     match  different  specifications  and  those  specifications  indicate  different  security
                     contexts, then a warning is displayed but the file is  still  labeled  based  on  the  last
                     matching specification other than <<none>>.

       pathname ...
              The  pathname  for  the root directory of each file system to be relabeled or a specific directory
              within a filesystem that should be recursively descended and relabeled or the pathname of  a  file
              that should be relabeled.  Not used if the -f or the -s option is used.

EXIT STATUS

       setfiles  exits  with  status  0 if it encounters no errors. Fatal errors result in status 255.  Labeling
       errors encountered during file tree walk(s) result in status 1 if the -C option is specified and no other
       kind of error is encountered, and in status 255 otherwise.

NOTES

       1.  setfiles operates recursively on directories. Paths leading up the final component of the file(s) are
           not canonicalized before labeling.

       2.  If the pathname specifies the root directory and the -v  option  is  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 the -D option to setfiles will  cause
           it to store a SHA1 digest of the spec_file 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 setfiles -D be rerun with the same spec_file and 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, files will be relabeled as required with the digests then being updated
           provided there are no errors.

EXAMPLE

       Fix labeling of /var/www/ including all sub-directories, using targeted policy file context definitions and list all context changes
       # setfiles -v /etc/selinux/targeted/contexts/files/file_contexts /var/www/
       List mislabeled files in user home directory and what the label should be based on targeted policy file context definitions
       # setfiles -nv /etc/selinux/targeted/contexts/files/file_contexts ~
       Fix labeling of files listed in file_list file, ignoring any that do not exist
       # setfiles -vif file_list /etc/selinux/targeted/contexts/files/file_contexts

AUTHOR

       This man page was written by Russell Coker <russell@coker.com.au>.  The program was  written  by  Stephen
       Smalley <stephen.smalley.work@gmail.com>