mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-17 10:26:15 +00:00
1e5294bc0a
old file, update references, etc. The C function is already named mac_is_present(). Obtained from: TrustedBSD Project
149 lines
4.0 KiB
Groff
149 lines
4.0 KiB
Groff
.\" Copyright (c) 2001 Networks Associates Technology, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This software was developed for the FreeBSD Project by Chris
|
|
.\" Costello at Safeport Network Services and NAI Labs, the Security
|
|
.\" Research Division of Network Associates, Inc. under DARPA/SPAWAR
|
|
.\" contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
|
|
.\" research program.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd January 14, 2003
|
|
.Dt MAC_SET 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm mac_set_file ,
|
|
.Nm mac_set_fd ,
|
|
.Nm mac_set_proc
|
|
.Nd set the MAC label for a file or process
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In sys/mac.h
|
|
.Ft int
|
|
.Fn mac_set_file "const char *path" "mac_t label"
|
|
.Ft int
|
|
.Fn mac_set_link "const char *path" "mac_t label"
|
|
.Ft int
|
|
.Fn mac_set_fd "int fd" "mac_t label"
|
|
.Ft int
|
|
.Fn mac_set_proc "mac_t label"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn mac_set_file
|
|
and
|
|
.Fn mac_set_fd
|
|
functions associate a MAC label
|
|
specified by
|
|
.Fa label
|
|
to the file referenced to by
|
|
.Fa path_p ,
|
|
or to the file descriptor
|
|
.Fa fd ,
|
|
respectively.
|
|
Note that when a file descriptor references a socket, label operations
|
|
on the file descriptor act on the socket, not on the file that may
|
|
have been used as a rendezvous when binding the socket.
|
|
The
|
|
.Fn mac_set_link
|
|
function is the same as
|
|
.Fn mac_set_file ,
|
|
except that it does not follow symlinks.
|
|
.Pp
|
|
The
|
|
.Fn mac_set_proc
|
|
function associates the MAC label
|
|
specified by
|
|
.Fa label
|
|
to the calling process.
|
|
.Pp
|
|
A process is allowed to set a label for a file
|
|
only if it has MAC write access to the file,
|
|
and its effective user ID is equal to
|
|
the owner of the file,
|
|
or has appropriate privileges.
|
|
.Sh RETURN VALUES
|
|
.Rv -std mac_set_fd mac_set_file mac_set_link mac_set_proc
|
|
.Sh ERRORS
|
|
.Bl -tag -width Er
|
|
.It Bq Er EACCES
|
|
MAC write access to the file is denied.
|
|
.It Bq Er EBADF
|
|
The
|
|
.Fa fd
|
|
argument
|
|
is not a valid file descriptor.
|
|
.It Bq Er EINVAL
|
|
The
|
|
.Fa label
|
|
argument
|
|
is not a valid MAC label, or the object referenced by
|
|
.Fa fd
|
|
is not appropriate for label operations.
|
|
.It Bq Er EOPNOTSUPP
|
|
Setting MAC labels is not supported
|
|
by the file referenced by
|
|
.Fa fd .
|
|
.It Bq Er EPERM
|
|
The calling process had insufficient privilege
|
|
to change the MAC label.
|
|
.It Bq Er EROFS
|
|
File system for the object being modified
|
|
is read only.
|
|
.It Bq Er ENAMETOOLONG
|
|
.\" XXX POSIX_NO_TRUNC?
|
|
The length of the pathname in
|
|
.Fa path_p
|
|
exceeds
|
|
.Dv PATH_MAX ,
|
|
or a component of the pathname
|
|
is longer than
|
|
.Dv NAME_MAX .
|
|
.It Bq Er ENOENT
|
|
The file referenced by
|
|
.Fa path_p
|
|
does not exist.
|
|
.It Bq Er ENOTDIR
|
|
A component of the pathname
|
|
referenced by
|
|
.Fa path_p
|
|
is not a directory.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr mac 3 ,
|
|
.Xr mac_free 3 ,
|
|
.Xr mac_get 3 ,
|
|
.Xr mac_is_present 3 ,
|
|
.Xr mac_prepare 3 ,
|
|
.Xr mac_text 3 ,
|
|
.Xr mac 4 ,
|
|
.Xr mac 9
|
|
.Sh HISTORY
|
|
Support for Mandatory Access Control was introduced in
|
|
.Fx 5.0
|
|
as part of the
|
|
.Tn TrustedBSD
|
|
Project.
|