replcon(1) SELinux file context replacement tool

SYNOPSIS

replcon NEW_CONTEXT DIR [OPTIONS] [EXPRESSION]

DESCRIPTION

replcon allows the user to find and replace file contexts. Replacements can be filtered by object class as described below.

REQUIRED ARGUMENTS

NEW_CONTEXT
The replacement context as expressed as a partial context, described below.
DIR
Initial directory to begin searching. The tool will recurse into any subdirectories, so be sure there are no circular mounts within it.

EXPRESSION

The following options allow the user to specify which files to find. A file must meet all specified criteria for its context to be replaced. If no expression is provided, all files' contexts are replaced.

-t TYPE, --type=TYPE
Search for files with a context containing the type TYPE.
-u USER, --user=USER
Search for files with a context containing the user USER.
-r ROLE, --role=ROLE
Search for files with a context containing the role ROLE.
-m RANGE, --mls-range=RANGE
Search for files with a context with the MLS range of RANGE. Note that replcon ignores the SELinux translation library, if present. In addition, this flag is ignored if DIR has no MLS information.
--context=CONTEXT
Search for files matching this partial context. This flag overrides -t, -u, -r, and -m.
-p PATH, --path=PATH
Search for files which include PATH.
-c CLASS, --class=CLASS
Search only files of object class CLASS.

OPTIONS

-R, --regex
Enable regular expressions
-v, --verbose
Display context info during replacement.
-h, --help
Print help information and exit.
-V, --version
Print version information and exit.

PARTIAL CONTEXT

The --context flag and NEW_CONTEXT argument specify a partial context, which is a a colon separated list of user, role, and type. If the system supports MLS, the context may have a fourth field that gives the range. With --context if a field is not specified or is the literal asterisk, then the query will always match the field. With NEW_CONTEXT if a field is not specified or is the literal asterisk, then that portion of the context will not be modified.

OBJECT CLASSES

Valid object class strings are

block, char, dir, fifo, file, link, or sock.

NOTE

The replcon utility always operates on "raw" SELinux file contexts. If the system has an installed translation library (i.e., libsetrans), those translations are ignored in favor of reading the original contexts from the filesystem.

EXAMPLES

replcon ::type_t: .
Replace every context's type in the current directory with type_t. The user and role portion remain unchanged.
replcon -u user_u *:role_r:* .
Replace every context's role with user user_u in the current directory with role_r. The user and type portion remain unchanged.
replcon --context ::type_t:s0 :::s0:c0 /tmp
Replace every context with type type_t and MLS range s0 in /tmp with MLS range s0:c0.

AUTHOR

This manual page was written by Jeremy A. Mowery <[email protected]>.

COPYRIGHT

Copyright(C) 2003-2007 Tresys Technology, LLC

BUGS

Please report bugs via an email to [email protected]