239 lines
5.9 KiB
Groff
239 lines
5.9 KiB
Groff
.TH "restorecon" "8" "10 June 2016" "" "SELinux User Command"
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.SH "NAME"
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restorecon \- restore file(s) default SELinux security contexts.
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.SH "SYNOPSIS"
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.B restorecon
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.RB [ \-r | \-R ]
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.RB [ \-m ]
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.RB [ \-n ]
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.RB [ \-p ]
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.RB [ \-v ]
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.RB [ \-i ]
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.RB [ \-F ]
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.RB [ \-W ]
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.RB [ \-I | \-D ]
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.RB [ \-x ]
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.RB [ \-e
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.IR directory ]
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.IR pathname \ ...
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.P
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.B restorecon
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.RB [ \-f
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.IR infilename ]
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.RB [ \-e
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.IR directory ]
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.RB [ \-r | \-R ]
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.RB [ \-m ]
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.RB [ \-n ]
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.RB [ \-p ]
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.RB [ \-v ]
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.RB [ \-i ]
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.RB [ \-F ]
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.RB [ \-W ]
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.RB [ \-I | \-D ]
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.RB [ \-x ]
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.RB [ \-T
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.IR nthreads ]
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.SH "DESCRIPTION"
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This manual page describes the
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.BR restorecon
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program.
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.P
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This program is primarily used to set the security context
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(extended attributes) on one or more files.
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.P
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It can also be run at any other time to correct inconsistent labels, to add
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support for newly-installed policy or, by using the
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.B \-n
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option, to passively
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check whether the file contexts are all set as specified by the active policy
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(default behavior).
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.P
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If a file object does not have a context,
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.B restorecon
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will write the default
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context to the file object's extended attributes. If a file object has a
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context,
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.B restorecon
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will only modify the type portion of the security context.
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The
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.B \-F
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option will force a replacement of the entire context.
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.P
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If a file is labeled with
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.BR customizable
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SELinux type (for list of customizable
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types see /etc/selinux/{SELINUXTYPE}/contexts/customizable_types), restorecon
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won't reset the label unless the \-F option is used.
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.P
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It is the same executable as
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.BR setfiles
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but operates in a slightly different manner depending on its argv[0].
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.SH "OPTIONS"
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.TP
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.BI \-e \ directory
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exclude a directory (repeat the option to exclude more than one directory, Requires full path).
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.TP
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.BI \-f \ infilename
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.I infilename
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contains a list of files to be processed. Use
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.RB \*(lq \- \*(rq
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for
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.BR stdin .
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.TP
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.B \-F
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Force reset of context to match file_context for customizable files, and the
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default file context, changing the user, role, range portion as well as the type.
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.TP
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.B \-h, \-?
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display usage information and exit.
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.TP
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.B \-i
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ignore files that do not exist.
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.TP
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.B \-I
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ignore digest to force checking of labels even if the stored SHA1 digest
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matches the specfiles SHA1 digest. The digest will then be updated provided
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there are no errors. See the
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.B NOTES
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section for further details.
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.TP
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.B \-D
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Set or update any directory SHA1 digests. Use this option to
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enable usage of the
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.IR security.sehash
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extended attribute.
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.TP
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.B \-m
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do not read
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.B /proc/mounts
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to obtain a list of non-seclabel mounts to be excluded from relabeling checks.
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Setting this option is useful where there is a non-seclabel fs mounted with a
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seclabel fs mounted on a directory below this.
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.TP
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.B \-n
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don't change any file labels (passive check). To display the files whose labels would be changed, add
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.BR \-v .
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.TP
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.BI \-o \ outfilename
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Deprecated - This option is no longer supported.
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.TP
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.B \-p
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show progress by printing the number of files in 1k blocks unless relabeling the entire
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OS, that will then show the approximate percentage complete. Note that the
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.B \-p
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and
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.B \-v
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options are mutually exclusive.
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.TP
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.B \-R, \-r
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change files and directories file labels recursively (descend directories).
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.br
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.TP
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.B \-v
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show changes in file labels. Multiple -v options increase the verbosity. Note that the
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.B \-v
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and
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.B \-p
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options are mutually exclusive.
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.TP
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.B \-W
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display warnings about entries that had no matching files by outputting the
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.BR selabel_stats (3)
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results.
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.TP
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.B \-0
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the separator for the input items is assumed to be the null character
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(instead of the white space). The quotes and the backslash characters are
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also treated as normal characters that can form valid input.
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This option finally also disables the end of file string, which is treated
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like any other argument. Useful when input items might contain white space,
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quote marks or backslashes. The
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.B \-print0
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option of GNU
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.B find
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produces input suitable for this mode.
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.TP
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.B \-x
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prevent
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.B restorecon
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from crossing file system boundaries.
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.TP
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.BI \-T \ nthreads
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use up to
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.I nthreads
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threads. Specify 0 to create as many threads as there are available
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CPU cores; 1 to use only a single thread (default); or any positive
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number to use the given number of threads (if possible).
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.TP
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.SH "ARGUMENTS"
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.IR pathname \ ...
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The pathname for the file(s) to be relabeled.
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.SH "NOTES"
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.IP "1." 4
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.B restorecon
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by default does not operate recursively on directories. Paths leading up the
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final component of the file(s) are canonicalized using
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.BR realpath (3)
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before labeling.
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.IP "2." 4
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If the
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.I pathname
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specifies the root directory and the
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.B \-vR
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or
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.B \-vr
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options are set and the audit system is running, then an audit event is
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automatically logged stating that a "mass relabel" took place using the
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message label
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.BR FS_RELABEL .
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.IP "3." 4
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To improve performance when relabeling file systems recursively (i.e. the
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.B \-R
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or
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.B \-r
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option is set),
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the
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.B \-D
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option to
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.B restorecon
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will cause it to store a SHA1 digest of the default specfiles set in an extended
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attribute named
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.IR security.sehash
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on each directory specified in
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.IR pathname \ ...
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once the relabeling has been completed successfully. These digests will be
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checked should
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.B restorecon
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.B \-D
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be rerun with the same
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.I pathname
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parameters. See
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.BR selinux_restorecon (3)
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for further details.
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.sp
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The
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.B \-I
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option will ignore the SHA1 digest from each directory specified in
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.IR pathname \ ...
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and provided the
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.B \-n
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option is NOT set and recursive mode is set, files will be relabeled as
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required with the digests then being updated provided there are no errors.
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.SH "AUTHOR"
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This man page was written by Dan Walsh <dwalsh@redhat.com>.
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Some of the content of this man page was taken from the setfiles
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man page written by Russell Coker <russell@coker.com.au>.
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The program was written by Dan Walsh <dwalsh@redhat.com>.
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.SH "SEE ALSO"
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.BR setfiles (8),
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.BR fixfiles (8),
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.BR load_policy (8),
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.BR checkpolicy (8),
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.BR customizable_types (5)
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